nathan/Chromebook-Device-Nyan-NVIDIA-Tegra-K1-T124-Upstream-Linux-3.10-LTS-Kernel
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

Initial commit; kernel source import

Browse Source
This commit is contained in:
Nathan
2025-04-06 23:50:55 -05:00
commit 25c6d769f4
45093 changed files with 18199410 additions and 0 deletions
Download Patch File Download Diff File Expand all files Collapse all files

168
drivers/input/misc/88pm80x_onkey.c Normal file
View File

@@ -0,0 +1,168 @@
/*
* Marvell 88PM80x ONKEY driver
*
* Copyright (C) 2012 Marvell International Ltd.
* Haojian Zhuang <haojian.zhuang@marvell.com>
* Qiao Zhou <zhouqiao@marvell.com>
*
* This file is subject to the terms and conditions of the GNU General
* Public License. See the file "COPYING" in the main directory of this
* archive for more details.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/input.h>
#include <linux/mfd/88pm80x.h>
#include <linux/regmap.h>
#include <linux/slab.h>
#define PM800_LONG_ONKEY_EN (1 << 0)
#define PM800_LONG_KEY_DELAY (8) /* 1 .. 16 seconds */
#define PM800_LONKEY_PRESS_TIME ((PM800_LONG_KEY_DELAY-1) << 4)
#define PM800_LONKEY_PRESS_TIME_MASK (0xF0)
#define PM800_SW_PDOWN (1 << 5)
struct pm80x_onkey_info {
struct input_dev *idev;
struct pm80x_chip *pm80x;
struct regmap *map;
int irq;
};
/* 88PM80x gives us an interrupt when ONKEY is held */
static irqreturn_t pm80x_onkey_handler(int irq, void *data)
{
struct pm80x_onkey_info *info = data;
int ret = 0;
unsigned int val;
ret = regmap_read(info->map, PM800_STATUS_1, &val);
if (ret < 0) {
dev_err(info->idev->dev.parent, "failed to read status: %d\n", ret);
return IRQ_NONE;
}
val &= PM800_ONKEY_STS1;
input_report_key(info->idev, KEY_POWER, val);
input_sync(info->idev);
return IRQ_HANDLED;
}
static SIMPLE_DEV_PM_OPS(pm80x_onkey_pm_ops, pm80x_dev_suspend,
pm80x_dev_resume);
static int pm80x_onkey_probe(struct platform_device *pdev)
{
struct pm80x_chip *chip = dev_get_drvdata(pdev->dev.parent);
struct pm80x_onkey_info *info;
int err;
info = kzalloc(sizeof(struct pm80x_onkey_info), GFP_KERNEL);
if (!info)
return -ENOMEM;
info->pm80x = chip;
info->irq = platform_get_irq(pdev, 0);
if (info->irq < 0) {
dev_err(&pdev->dev, "No IRQ resource!\n");
err = -EINVAL;
goto out;
}
info->map = info->pm80x->regmap;
if (!info->map) {
dev_err(&pdev->dev, "no regmap!\n");
err = -EINVAL;
goto out;
}
info->idev = input_allocate_device();
if (!info->idev) {
dev_err(&pdev->dev, "Failed to allocate input dev\n");
err = -ENOMEM;
goto out;
}
info->idev->name = "88pm80x_on";
info->idev->phys = "88pm80x_on/input0";
info->idev->id.bustype = BUS_I2C;
info->idev->dev.parent = &pdev->dev;
info->idev->evbit[0] = BIT_MASK(EV_KEY);
__set_bit(KEY_POWER, info->idev->keybit);
err = pm80x_request_irq(info->pm80x, info->irq, pm80x_onkey_handler,
IRQF_ONESHOT, "onkey", info);
if (err < 0) {
dev_err(&pdev->dev, "Failed to request IRQ: #%d: %d\n",
info->irq, err);
goto out_reg;
}
err = input_register_device(info->idev);
if (err) {
dev_err(&pdev->dev, "Can't register input device: %d\n", err);
goto out_irq;
}
platform_set_drvdata(pdev, info);
/* Enable long onkey detection */
regmap_update_bits(info->map, PM800_RTC_MISC4, PM800_LONG_ONKEY_EN,
PM800_LONG_ONKEY_EN);
/* Set 8-second interval */
regmap_update_bits(info->map, PM800_RTC_MISC3,
PM800_LONKEY_PRESS_TIME_MASK,
PM800_LONKEY_PRESS_TIME);
device_init_wakeup(&pdev->dev, 1);
return 0;
out_irq:
pm80x_free_irq(info->pm80x, info->irq, info);
out_reg:
input_free_device(info->idev);
out:
kfree(info);
return err;
}
static int pm80x_onkey_remove(struct platform_device *pdev)
{
struct pm80x_onkey_info *info = platform_get_drvdata(pdev);
device_init_wakeup(&pdev->dev, 0);
pm80x_free_irq(info->pm80x, info->irq, info);
input_unregister_device(info->idev);
kfree(info);
return 0;
}
static struct platform_driver pm80x_onkey_driver = {
.driver = {
.name = "88pm80x-onkey",
.owner = THIS_MODULE,
.pm = &pm80x_onkey_pm_ops,
},
.probe = pm80x_onkey_probe,
.remove = pm80x_onkey_remove,
};
module_platform_driver(pm80x_onkey_driver);
MODULE_LICENSE("GPL");
MODULE_DESCRIPTION("Marvell 88PM80x ONKEY driver");
MODULE_AUTHOR("Qiao Zhou <zhouqiao@marvell.com>");
MODULE_ALIAS("platform:88pm80x-onkey");

170
drivers/input/misc/88pm860x_onkey.c Normal file
View File

@@ -0,0 +1,170 @@
/*
* 88pm860x_onkey.c - Marvell 88PM860x ONKEY driver
*
* Copyright (C) 2009-2010 Marvell International Ltd.
* Haojian Zhuang <haojian.zhuang@marvell.com>
*
* This file is subject to the terms and conditions of the GNU General
* Public License. See the file "COPYING" in the main directory of this
* archive for more details.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/platform_device.h>
#include <linux/i2c.h>
#include <linux/input.h>
#include <linux/interrupt.h>
#include <linux/mfd/88pm860x.h>
#include <linux/slab.h>
#define PM8607_WAKEUP 0x0b
#define LONG_ONKEY_EN (1 << 1)
#define ONKEY_STATUS (1 << 0)
struct pm860x_onkey_info {
struct input_dev *idev;
struct pm860x_chip *chip;
struct i2c_client *i2c;
struct device *dev;
int irq;
};
/* 88PM860x gives us an interrupt when ONKEY is held */
static irqreturn_t pm860x_onkey_handler(int irq, void *data)
{
struct pm860x_onkey_info *info = data;
int ret;
ret = pm860x_reg_read(info->i2c, PM8607_STATUS_2);
ret &= ONKEY_STATUS;
input_report_key(info->idev, KEY_POWER, ret);
input_sync(info->idev);
/* Enable 8-second long onkey detection */
pm860x_set_bits(info->i2c, PM8607_WAKEUP, 3, LONG_ONKEY_EN);
return IRQ_HANDLED;
}
static int pm860x_onkey_probe(struct platform_device *pdev)
{
struct pm860x_chip *chip = dev_get_drvdata(pdev->dev.parent);
struct pm860x_onkey_info *info;
int irq, ret;
irq = platform_get_irq(pdev, 0);
if (irq < 0) {
dev_err(&pdev->dev, "No IRQ resource!\n");
return -EINVAL;
}
info = kzalloc(sizeof(struct pm860x_onkey_info), GFP_KERNEL);
if (!info)
return -ENOMEM;
info->chip = chip;
info->i2c = (chip->id == CHIP_PM8607) ? chip->client : chip->companion;
info->dev = &pdev->dev;
info->irq = irq;
info->idev = input_allocate_device();
if (!info->idev) {
dev_err(chip->dev, "Failed to allocate input dev\n");
ret = -ENOMEM;
goto out;
}
info->idev->name = "88pm860x_on";
info->idev->phys = "88pm860x_on/input0";
info->idev->id.bustype = BUS_I2C;
info->idev->dev.parent = &pdev->dev;
info->idev->evbit[0] = BIT_MASK(EV_KEY);
info->idev->keybit[BIT_WORD(KEY_POWER)] = BIT_MASK(KEY_POWER);
ret = input_register_device(info->idev);
if (ret) {
dev_err(chip->dev, "Can't register input device: %d\n", ret);
goto out_reg;
}
ret = request_threaded_irq(info->irq, NULL, pm860x_onkey_handler,
IRQF_ONESHOT, "onkey", info);
if (ret < 0) {
dev_err(chip->dev, "Failed to request IRQ: #%d: %d\n",
info->irq, ret);
goto out_irq;
}
platform_set_drvdata(pdev, info);
device_init_wakeup(&pdev->dev, 1);
return 0;
out_irq:
input_unregister_device(info->idev);
kfree(info);
return ret;
out_reg:
input_free_device(info->idev);
out:
kfree(info);
return ret;
}
static int pm860x_onkey_remove(struct platform_device *pdev)
{
struct pm860x_onkey_info *info = platform_get_drvdata(pdev);
free_irq(info->irq, info);
input_unregister_device(info->idev);
kfree(info);
return 0;
}
#ifdef CONFIG_PM_SLEEP
static int pm860x_onkey_suspend(struct device *dev)
{
struct platform_device *pdev = to_platform_device(dev);
struct pm860x_chip *chip = dev_get_drvdata(pdev->dev.parent);
if (device_may_wakeup(dev))
chip->wakeup_flag |= 1 << PM8607_IRQ_ONKEY;
return 0;
}
static int pm860x_onkey_resume(struct device *dev)
{
struct platform_device *pdev = to_platform_device(dev);
struct pm860x_chip *chip = dev_get_drvdata(pdev->dev.parent);
if (device_may_wakeup(dev))
chip->wakeup_flag &= ~(1 << PM8607_IRQ_ONKEY);
return 0;
}
#endif
static SIMPLE_DEV_PM_OPS(pm860x_onkey_pm_ops, pm860x_onkey_suspend, pm860x_onkey_resume);
static struct platform_driver pm860x_onkey_driver = {
.driver = {
.name = "88pm860x-onkey",
.owner = THIS_MODULE,
.pm = &pm860x_onkey_pm_ops,
},
.probe = pm860x_onkey_probe,
.remove = pm860x_onkey_remove,
};
module_platform_driver(pm860x_onkey_driver);
MODULE_DESCRIPTION("Marvell 88PM860x ONKEY driver");
MODULE_AUTHOR("Haojian Zhuang <haojian.zhuang@marvell.com>");
MODULE_LICENSE("GPL");

640
drivers/input/misc/Kconfig Normal file
View File

@@ -0,0 +1,640 @@
#
# Input misc drivers configuration
#
menuconfig INPUT_MISC
bool "Miscellaneous devices"
help
Say Y here, and a list of miscellaneous input drivers will be displayed.
Everything that didn't fit into the other categories is here. This option
doesn't affect the kernel.
If unsure, say Y.
if INPUT_MISC
config INPUT_88PM860X_ONKEY
tristate "88PM860x ONKEY support"
depends on MFD_88PM860X
help
Support the ONKEY of Marvell 88PM860x PMICs as an input device
reporting power button status.
To compile this driver as a module, choose M here: the module
will be called 88pm860x_onkey.
config INPUT_88PM80X_ONKEY
tristate "88PM80x ONKEY support"
depends on MFD_88PM800
help
Support the ONKEY of Marvell 88PM80x PMICs as an input device
reporting power button status.
To compile this driver as a module, choose M here: the module
will be called 88pm80x_onkey.
config INPUT_AB8500_PONKEY
tristate "AB8500 Pon (PowerOn) Key"
depends on AB8500_CORE
help
Say Y here to use the PowerOn Key for ST-Ericsson's AB8500
Mix-Sig PMIC.
To compile this driver as a module, choose M here: the module
will be called ab8500-ponkey.
config INPUT_AD714X
tristate "Analog Devices AD714x Capacitance Touch Sensor"
help
Say Y here if you want to support an AD7142/3/7/8/7A touch sensor.
You should select a bus connection too.
To compile this driver as a module, choose M here: the
module will be called ad714x.
config INPUT_AD714X_I2C
tristate "support I2C bus connection"
depends on INPUT_AD714X && I2C
default y
help
Say Y here if you have AD7142/AD7147 hooked to an I2C bus.
To compile this driver as a module, choose M here: the
module will be called ad714x-i2c.
config INPUT_AD714X_SPI
tristate "support SPI bus connection"
depends on INPUT_AD714X && SPI
default y
help
Say Y here if you have AD7142/AD7147 hooked to a SPI bus.
To compile this driver as a module, choose M here: the
module will be called ad714x-spi.
config INPUT_ARIZONA_HAPTICS
tristate "Arizona haptics support"
depends on MFD_ARIZONA && SND_SOC
select INPUT_FF_MEMLESS
help
Say Y to enable support for the haptics module in Arizona CODECs.
To compile this driver as a module, choose M here: the
module will be called arizona-haptics.
config INPUT_BMA150
tristate "BMA150/SMB380 acceleration sensor support"
depends on I2C
select INPUT_POLLDEV
help
Say Y here if you have Bosch Sensortec's BMA150 or SMB380
acceleration sensor hooked to an I2C bus.
To compile this driver as a module, choose M here: the
module will be called bma150.
config INPUT_PCSPKR
tristate "PC Speaker support"
depends on PCSPKR_PLATFORM
help
Say Y here if you want the standard PC Speaker to be used for
bells and whistles.
If unsure, say Y.
To compile this driver as a module, choose M here: the
module will be called pcspkr.
config INPUT_PM8XXX_VIBRATOR
tristate "Qualcomm PM8XXX vibrator support"
depends on MFD_PM8XXX
select INPUT_FF_MEMLESS
help
This option enables device driver support for the vibrator
on Qualcomm PM8xxx chip. This driver supports ff-memless interface
from input framework.
To compile this driver as module, choose M here: the
module will be called pm8xxx-vibrator.
config INPUT_PMIC8XXX_PWRKEY
tristate "PMIC8XXX power key support"
depends on MFD_PM8XXX
help
Say Y here if you want support for the PMIC8XXX power key.
If unsure, say N.
To compile this driver as a module, choose M here: the
module will be called pmic8xxx-pwrkey.
config INPUT_SPARCSPKR
tristate "SPARC Speaker support"
depends on PCI && SPARC64
help
Say Y here if you want the standard Speaker on Sparc PCI systems
to be used for bells and whistles.
If unsure, say Y.
To compile this driver as a module, choose M here: the
module will be called sparcspkr.
config INPUT_M68K_BEEP
tristate "M68k Beeper support"
depends on M68K
config INPUT_MAX8925_ONKEY
tristate "MAX8925 ONKEY support"
depends on MFD_MAX8925
help
Support the ONKEY of MAX8925 PMICs as an input device
reporting power button status.
To compile this driver as a module, choose M here: the module
will be called max8925_onkey.
config INPUT_MAX8997_HAPTIC
tristate "MAXIM MAX8997 haptic controller support"
depends on HAVE_PWM && MFD_MAX8997
select INPUT_FF_MEMLESS
help
This option enables device driver support for the haptic controller
on MAXIM MAX8997 chip. This driver supports ff-memless interface
from input framework.
To compile this driver as module, choose M here: the
module will be called max8997-haptic.
config INPUT_MC13783_PWRBUTTON
tristate "MC13783 ON buttons"
depends on MFD_MC13783
help
Support the ON buttons of MC13783 PMIC as an input device
reporting power button status.
To compile this driver as a module, choose M here: the module
will be called mc13783-pwrbutton.
config INPUT_MMA8450
tristate "MMA8450 - Freescale's 3-Axis, 8/12-bit Digital Accelerometer"
depends on I2C
select INPUT_POLLDEV
help
Say Y here if you want to support Freescale's MMA8450 Accelerometer
through I2C interface.
To compile this driver as a module, choose M here: the
module will be called mma8450.
config INPUT_MPU3050
tristate "MPU3050 Triaxial gyroscope sensor"
depends on I2C
help
Say Y here if you want to support InvenSense MPU3050
connected via an I2C bus.
To compile this driver as a module, choose M here: the
module will be called mpu3050.
config INPUT_APANEL
tristate "Fujitsu Lifebook Application Panel buttons"
depends on X86 && I2C && LEDS_CLASS
select INPUT_POLLDEV
select CHECK_SIGNATURE
help
Say Y here for support of the Application Panel buttons, used on
Fujitsu Lifebook. These are attached to the mainboard through
an SMBus interface managed by the I2C Intel ICH (i801) driver,
which you should also build for this kernel.
To compile this driver as a module, choose M here: the module will
be called apanel.
config INPUT_GP2A
tristate "Sharp GP2AP002A00F I2C Proximity/Opto sensor driver"
depends on I2C
depends on GPIOLIB
help
Say Y here if you have a Sharp GP2AP002A00F proximity/als combo-chip
hooked to an I2C bus.
To compile this driver as a module, choose M here: the
module will be called gp2ap002a00f.
config INPUT_GPIO_TILT_POLLED
tristate "Polled GPIO tilt switch"
depends on GPIOLIB
select INPUT_POLLDEV
help
This driver implements support for tilt switches connected
to GPIO pins that are not capable of generating interrupts.
The list of gpios to use and the mapping of their states
to specific angles is done via platform data.
To compile this driver as a module, choose M here: the
module will be called gpio_tilt_polled.
config INPUT_IXP4XX_BEEPER
tristate "IXP4XX Beeper support"
depends on ARCH_IXP4XX
help
If you say yes here, you can connect a beeper to the
ixp4xx gpio pins. This is used by the LinkSys NSLU2.
If unsure, say Y.
To compile this driver as a module, choose M here: the
module will be called ixp4xx-beeper.
config INPUT_COBALT_BTNS
tristate "Cobalt button interface"
depends on MIPS_COBALT
select INPUT_POLLDEV
help
Say Y here if you want to support MIPS Cobalt button interface.
To compile this driver as a module, choose M here: the
module will be called cobalt_btns.
config INPUT_WISTRON_BTNS
tristate "x86 Wistron laptop button interface"
depends on X86 && !X86_64
select INPUT_POLLDEV
select INPUT_SPARSEKMAP
select NEW_LEDS
select LEDS_CLASS
select CHECK_SIGNATURE
help
Say Y here for support of Wistron laptop button interfaces, used on
laptops of various brands, including Acer and Fujitsu-Siemens. If
available, mail and wifi LEDs will be controllable via /sys/class/leds.
To compile this driver as a module, choose M here: the module will
be called wistron_btns.
config INPUT_ATLAS_BTNS
tristate "x86 Atlas button interface"
depends on X86 && ACPI
help
Say Y here for support of Atlas wallmount touchscreen buttons.
The events will show up as scancodes F1 through F9 via evdev.
To compile this driver as a module, choose M here: the module will
be called atlas_btns.
config INPUT_ATI_REMOTE2
tristate "ATI / Philips USB RF remote control"
depends on USB_ARCH_HAS_HCD
select USB
help
Say Y here if you want to use an ATI or Philips USB RF remote control.
These are RF remotes with USB receivers.
ATI Remote Wonder II comes with some ATI's All-In-Wonder video cards
and is also available as a separate product.
This driver provides mouse pointer, left and right mouse buttons,
and maps all the other remote buttons to keypress events.
To compile this driver as a module, choose M here: the module will be
called ati_remote2.
config INPUT_KEYSPAN_REMOTE
tristate "Keyspan DMR USB remote control"
depends on USB_ARCH_HAS_HCD
select USB
help
Say Y here if you want to use a Keyspan DMR USB remote control.
Currently only the UIA-11 type of receiver has been tested. The tag
on the receiver that connects to the USB port should have a P/N that
will tell you what type of DMR you have. The UIA-10 type is not
supported at this time. This driver maps all buttons to keypress
events.
To compile this driver as a module, choose M here: the module will
be called keyspan_remote.
config INPUT_KXTJ9
tristate "Kionix KXTJ9 tri-axis digital accelerometer"
depends on I2C
help
Say Y here to enable support for the Kionix KXTJ9 digital tri-axis
accelerometer.
To compile this driver as a module, choose M here: the module will
be called kxtj9.
config INPUT_KXTJ9_POLLED_MODE
bool "Enable polling mode support"
depends on INPUT_KXTJ9
select INPUT_POLLDEV
help
Say Y here if you need accelerometer to work in polling mode.
config INPUT_POWERMATE
tristate "Griffin PowerMate and Contour Jog support"
depends on USB_ARCH_HAS_HCD
select USB
help
Say Y here if you want to use Griffin PowerMate or Contour Jog devices.
These are aluminum dials which can measure clockwise and anticlockwise
rotation. The dial also acts as a pushbutton. The base contains an LED
which can be instructed to pulse or to switch to a particular intensity.
You can download userspace tools from
<http://sowerbutts.com/powermate/>.
To compile this driver as a module, choose M here: the
module will be called powermate.
config INPUT_YEALINK
tristate "Yealink usb-p1k voip phone"
depends on USB_ARCH_HAS_HCD
select USB
help
Say Y here if you want to enable keyboard and LCD functions of the
Yealink usb-p1k usb phones. The audio part is enabled by the generic
usb sound driver, so you might want to enable that as well.
For information about how to use these additional functions, see
<file:Documentation/input/yealink.txt>.
To compile this driver as a module, choose M here: the module will be
called yealink.
config INPUT_CM109
tristate "C-Media CM109 USB I/O Controller"
depends on USB_ARCH_HAS_HCD
select USB
help
Say Y here if you want to enable keyboard and buzzer functions of the
C-Media CM109 usb phones. The audio part is enabled by the generic
usb sound driver, so you might want to enable that as well.
To compile this driver as a module, choose M here: the module will be
called cm109.
config INPUT_RETU_PWRBUTTON
tristate "Retu Power button Driver"
depends on MFD_RETU
help
Say Y here if you want to enable power key reporting via the
Retu chips found in Nokia Internet Tablets (770, N800, N810).
To compile this driver as a module, choose M here. The module will
be called retu-pwrbutton.
config INPUT_TWL4030_PWRBUTTON
tristate "TWL4030 Power button Driver"
depends on TWL4030_CORE
help
Say Y here if you want to enable power key reporting via the
TWL4030 family of chips.
To compile this driver as a module, choose M here. The module will
be called twl4030_pwrbutton.
config INPUT_TWL4030_VIBRA
tristate "Support for TWL4030 Vibrator"
depends on TWL4030_CORE
select MFD_TWL4030_AUDIO
select INPUT_FF_MEMLESS
help
This option enables support for TWL4030 Vibrator Driver.
To compile this driver as a module, choose M here. The module will
be called twl4030_vibra.
config INPUT_TWL6040_VIBRA
tristate "Support for TWL6040 Vibrator"
depends on TWL6040_CORE
select INPUT_FF_MEMLESS
help
This option enables support for TWL6040 Vibrator Driver.
To compile this driver as a module, choose M here. The module will
be called twl6040_vibra.
config INPUT_UINPUT
tristate "User level driver support"
help
Say Y here if you want to support user level drivers for input
subsystem accessible under char device 10:223 - /dev/input/uinput.
To compile this driver as a module, choose M here: the
module will be called uinput.
config INPUT_SGI_BTNS
tristate "SGI Indy/O2 volume button interface"
depends on SGI_IP22 || SGI_IP32
select INPUT_POLLDEV
help
Say Y here if you want to support SGI Indy/O2 volume button interface.
To compile this driver as a module, choose M here: the
module will be called sgi_btns.
config HP_SDC_RTC
tristate "HP SDC Real Time Clock"
depends on (GSC || HP300) && SERIO
select HP_SDC
help
Say Y here if you want to support the built-in real time clock
of the HP SDC controller.
config INPUT_PCF50633_PMU
tristate "PCF50633 PMU events"
depends on MFD_PCF50633
help
Say Y to include support for delivering PMU events via input
layer on NXP PCF50633.
config INPUT_PCF8574
tristate "PCF8574 Keypad input device"
depends on I2C
help
Say Y here if you want to support a keypad connected via I2C
with a PCF8574.
To compile this driver as a module, choose M here: the
module will be called pcf8574_keypad.
config INPUT_PWM_BEEPER
tristate "PWM beeper support"
depends on HAVE_PWM || PWM
help
Say Y here to get support for PWM based beeper devices.
If unsure, say N.
To compile this driver as a module, choose M here: the module will be
called pwm-beeper.
config INPUT_GPIO_ROTARY_ENCODER
tristate "Rotary encoders connected to GPIO pins"
depends on GPIOLIB
help
Say Y here to add support for rotary encoders connected to GPIO lines.
Check file:Documentation/input/rotary-encoder.txt for more
information.
To compile this driver as a module, choose M here: the
module will be called rotary_encoder.
config INPUT_RB532_BUTTON
tristate "Mikrotik Routerboard 532 button interface"
depends on MIKROTIK_RB532
depends on GPIOLIB
select INPUT_POLLDEV
help
Say Y here if you want support for the S1 button built into
Mikrotik's Routerboard 532.
To compile this driver as a module, choose M here: the
module will be called rb532_button.
config INPUT_DA9052_ONKEY
tristate "Dialog DA9052/DA9053 Onkey"
depends on PMIC_DA9052
help
Support the ONKEY of Dialog DA9052 PMICs as an input device
reporting power button status.
To compile this driver as a module, choose M here: the
module will be called da9052_onkey.
config INPUT_DA9055_ONKEY
tristate "Dialog Semiconductor DA9055 ONKEY"
depends on MFD_DA9055
help
Support the ONKEY of DA9055 PMICs as an input device
reporting power button status.
To compile this driver as a module, choose M here: the module
will be called da9055_onkey.
config INPUT_DM355EVM
tristate "TI DaVinci DM355 EVM Keypad and IR Remote"
depends on MFD_DM355EVM_MSP
select INPUT_SPARSEKMAP
help
Supports the pushbuttons and IR remote used with
the DM355 EVM board.
To compile this driver as a module, choose M here: the
module will be called dm355evm_keys.
config INPUT_BFIN_ROTARY
tristate "Blackfin Rotary support"
depends on BF54x || BF52x
help
Say Y here if you want to use the Blackfin Rotary.
To compile this driver as a module, choose M here: the
module will be called bfin-rotary.
config INPUT_WM831X_ON
tristate "WM831X ON pin"
depends on MFD_WM831X
help
Support the ON pin of WM831X PMICs as an input device
reporting power button status.
To compile this driver as a module, choose M here: the module
will be called wm831x_on.
config INPUT_PCAP
tristate "Motorola EZX PCAP misc input events"
depends on EZX_PCAP
help
Say Y here if you want to use Power key and Headphone button
on Motorola EZX phones.
To compile this driver as a module, choose M here: the
module will be called pcap_keys.
config INPUT_ADXL34X
tristate "Analog Devices ADXL34x Three-Axis Digital Accelerometer"
default n
help
Say Y here if you have a Accelerometer interface using the
ADXL345/6 controller, and your board-specific initialization
code includes that in its table of devices.
This driver can use either I2C or SPI communication to the
ADXL345/6 controller. Select the appropriate method for
your system.
If unsure, say N (but it's safe to say "Y").
To compile this driver as a module, choose M here: the
module will be called adxl34x.
config INPUT_ADXL34X_I2C
tristate "support I2C bus connection"
depends on INPUT_ADXL34X && I2C
default y
help
Say Y here if you have ADXL345/6 hooked to an I2C bus.
To compile this driver as a module, choose M here: the
module will be called adxl34x-i2c.
config INPUT_ADXL34X_SPI
tristate "support SPI bus connection"
depends on INPUT_ADXL34X && SPI
default y
help
Say Y here if you have ADXL345/6 hooked to a SPI bus.
To compile this driver as a module, choose M here: the
module will be called adxl34x-spi.
config INPUT_IMS_PCU
tristate "IMS Passenger Control Unit driver"
depends on USB
depends on LEDS_CLASS
help
Say Y here if you have system with IMS Rave Passenger Control Unit.
To compile this driver as a module, choose M here: the module will be
called ims_pcu.
config INPUT_CMA3000
tristate "VTI CMA3000 Tri-axis accelerometer"
help
Say Y here if you want to use VTI CMA3000_D0x Accelerometer
driver
This driver currently only supports I2C interface to the
controller. Also select the I2C method.
If unsure, say N
To compile this driver as a module, choose M here: the
module will be called cma3000_d0x.
config INPUT_CMA3000_I2C
tristate "Support I2C bus connection"
depends on INPUT_CMA3000 && I2C
help
Say Y here if you want to use VTI CMA3000_D0x Accelerometer
through I2C interface.
To compile this driver as a module, choose M here: the
module will be called cma3000_d0x_i2c.
config INPUT_XEN_KBDDEV_FRONTEND
tristate "Xen virtual keyboard and mouse support"
depends on XEN
default y
select XEN_XENBUS_FRONTEND
help
This driver implements the front-end of the Xen virtual
keyboard and mouse device driver. It communicates with a back-end
in another domain.
To compile this driver as a module, choose M here: the
module will be called xen-kbdfront.
endif

62
drivers/input/misc/Makefile Normal file
View File

@@ -0,0 +1,62 @@
#
# Makefile for the input misc drivers.
#
# Each configuration option enables a list of files.
obj-$(CONFIG_INPUT_88PM860X_ONKEY) += 88pm860x_onkey.o
obj-$(CONFIG_INPUT_88PM80X_ONKEY) += 88pm80x_onkey.o
obj-$(CONFIG_INPUT_AB8500_PONKEY) += ab8500-ponkey.o
obj-$(CONFIG_INPUT_AD714X) += ad714x.o
obj-$(CONFIG_INPUT_AD714X_I2C) += ad714x-i2c.o
obj-$(CONFIG_INPUT_AD714X_SPI) += ad714x-spi.o
obj-$(CONFIG_INPUT_ADXL34X) += adxl34x.o
obj-$(CONFIG_INPUT_ADXL34X_I2C) += adxl34x-i2c.o
obj-$(CONFIG_INPUT_ADXL34X_SPI) += adxl34x-spi.o
obj-$(CONFIG_INPUT_APANEL) += apanel.o
obj-$(CONFIG_INPUT_ARIZONA_HAPTICS) += arizona-haptics.o
obj-$(CONFIG_INPUT_ATI_REMOTE2) += ati_remote2.o
obj-$(CONFIG_INPUT_ATLAS_BTNS) += atlas_btns.o
obj-$(CONFIG_INPUT_BFIN_ROTARY) += bfin_rotary.o
obj-$(CONFIG_INPUT_BMA150) += bma150.o
obj-$(CONFIG_INPUT_CM109) += cm109.o
obj-$(CONFIG_INPUT_CMA3000) += cma3000_d0x.o
obj-$(CONFIG_INPUT_CMA3000_I2C) += cma3000_d0x_i2c.o
obj-$(CONFIG_INPUT_COBALT_BTNS) += cobalt_btns.o
obj-$(CONFIG_INPUT_DA9052_ONKEY) += da9052_onkey.o
obj-$(CONFIG_INPUT_DA9055_ONKEY) += da9055_onkey.o
obj-$(CONFIG_INPUT_DM355EVM) += dm355evm_keys.o
obj-$(CONFIG_INPUT_GP2A) += gp2ap002a00f.o
obj-$(CONFIG_INPUT_GPIO_TILT_POLLED) += gpio_tilt_polled.o
obj-$(CONFIG_HP_SDC_RTC) += hp_sdc_rtc.o
obj-$(CONFIG_INPUT_IMS_PCU) += ims-pcu.o
obj-$(CONFIG_INPUT_IXP4XX_BEEPER) += ixp4xx-beeper.o
obj-$(CONFIG_INPUT_KEYSPAN_REMOTE) += keyspan_remote.o
obj-$(CONFIG_INPUT_KXTJ9) += kxtj9.o
obj-$(CONFIG_INPUT_M68K_BEEP) += m68kspkr.o
obj-$(CONFIG_INPUT_MAX8925_ONKEY) += max8925_onkey.o
obj-$(CONFIG_INPUT_MAX8997_HAPTIC) += max8997_haptic.o
obj-$(CONFIG_INPUT_MC13783_PWRBUTTON) += mc13783-pwrbutton.o
obj-$(CONFIG_INPUT_MMA8450) += mma8450.o
obj-$(CONFIG_INPUT_MPU3050) += mpu3050.o
obj-$(CONFIG_INPUT_PCAP) += pcap_keys.o
obj-$(CONFIG_INPUT_PCF50633_PMU) += pcf50633-input.o
obj-$(CONFIG_INPUT_PCF8574) += pcf8574_keypad.o
obj-$(CONFIG_INPUT_PCSPKR) += pcspkr.o
obj-$(CONFIG_INPUT_PM8XXX_VIBRATOR) += pm8xxx-vibrator.o
obj-$(CONFIG_INPUT_PMIC8XXX_PWRKEY) += pmic8xxx-pwrkey.o
obj-$(CONFIG_INPUT_POWERMATE) += powermate.o
obj-$(CONFIG_INPUT_PWM_BEEPER) += pwm-beeper.o
obj-$(CONFIG_INPUT_RB532_BUTTON) += rb532_button.o
obj-$(CONFIG_INPUT_RETU_PWRBUTTON) += retu-pwrbutton.o
obj-$(CONFIG_INPUT_GPIO_ROTARY_ENCODER) += rotary_encoder.o
obj-$(CONFIG_INPUT_SGI_BTNS) += sgi_btns.o
obj-$(CONFIG_INPUT_SPARCSPKR) += sparcspkr.o
obj-$(CONFIG_INPUT_TWL4030_PWRBUTTON) += twl4030-pwrbutton.o
obj-$(CONFIG_INPUT_TWL4030_VIBRA) += twl4030-vibra.o
obj-$(CONFIG_INPUT_TWL6040_VIBRA) += twl6040-vibra.o
obj-$(CONFIG_INPUT_UINPUT) += uinput.o
obj-$(CONFIG_INPUT_WISTRON_BTNS) += wistron_btns.o
obj-$(CONFIG_INPUT_WM831X_ON) += wm831x-on.o
obj-$(CONFIG_INPUT_XEN_KBDDEV_FRONTEND) += xen-kbdfront.o
obj-$(CONFIG_INPUT_YEALINK) += yealink.o

155
drivers/input/misc/ab8500-ponkey.c Normal file
View File

@@ -0,0 +1,155 @@
/*
* Copyright (C) ST-Ericsson SA 2010
*
* License Terms: GNU General Public License v2
* Author: Sundar Iyer <sundar.iyer@stericsson.com> for ST-Ericsson
*
* AB8500 Power-On Key handler
*/
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/platform_device.h>
#include <linux/input.h>
#include <linux/interrupt.h>
#include <linux/mfd/abx500/ab8500.h>
#include <linux/of.h>
#include <linux/slab.h>
/**
* struct ab8500_ponkey - ab8500 ponkey information
* @input_dev: pointer to input device
* @ab8500: ab8500 parent
* @irq_dbf: irq number for falling transition
* @irq_dbr: irq number for rising transition
*/
struct ab8500_ponkey {
struct input_dev *idev;
struct ab8500 *ab8500;
int irq_dbf;
int irq_dbr;
};
/* AB8500 gives us an interrupt when ONKEY is held */
static irqreturn_t ab8500_ponkey_handler(int irq, void *data)
{
struct ab8500_ponkey *ponkey = data;
if (irq == ponkey->irq_dbf)
input_report_key(ponkey->idev, KEY_POWER, true);
else if (irq == ponkey->irq_dbr)
input_report_key(ponkey->idev, KEY_POWER, false);
input_sync(ponkey->idev);
return IRQ_HANDLED;
}
static int ab8500_ponkey_probe(struct platform_device *pdev)
{
struct ab8500 *ab8500 = dev_get_drvdata(pdev->dev.parent);
struct ab8500_ponkey *ponkey;
struct input_dev *input;
int irq_dbf, irq_dbr;
int error;
irq_dbf = platform_get_irq_byname(pdev, "ONKEY_DBF");
if (irq_dbf < 0) {
dev_err(&pdev->dev, "No IRQ for ONKEY_DBF, error=%d\n", irq_dbf);
return irq_dbf;
}
irq_dbr = platform_get_irq_byname(pdev, "ONKEY_DBR");
if (irq_dbr < 0) {
dev_err(&pdev->dev, "No IRQ for ONKEY_DBR, error=%d\n", irq_dbr);
return irq_dbr;
}
ponkey = kzalloc(sizeof(struct ab8500_ponkey), GFP_KERNEL);
input = input_allocate_device();
if (!ponkey || !input) {
error = -ENOMEM;
goto err_free_mem;
}
ponkey->idev = input;
ponkey->ab8500 = ab8500;
ponkey->irq_dbf = irq_dbf;
ponkey->irq_dbr = irq_dbr;
input->name = "AB8500 POn(PowerOn) Key";
input->dev.parent = &pdev->dev;
input_set_capability(input, EV_KEY, KEY_POWER);
error = request_any_context_irq(ponkey->irq_dbf, ab8500_ponkey_handler,
0, "ab8500-ponkey-dbf", ponkey);
if (error < 0) {
dev_err(ab8500->dev, "Failed to request dbf IRQ#%d: %d\n",
ponkey->irq_dbf, error);
goto err_free_mem;
}
error = request_any_context_irq(ponkey->irq_dbr, ab8500_ponkey_handler,
0, "ab8500-ponkey-dbr", ponkey);
if (error < 0) {
dev_err(ab8500->dev, "Failed to request dbr IRQ#%d: %d\n",
ponkey->irq_dbr, error);
goto err_free_dbf_irq;
}
error = input_register_device(ponkey->idev);
if (error) {
dev_err(ab8500->dev, "Can't register input device: %d\n", error);
goto err_free_dbr_irq;
}
platform_set_drvdata(pdev, ponkey);
return 0;
err_free_dbr_irq:
free_irq(ponkey->irq_dbr, ponkey);
err_free_dbf_irq:
free_irq(ponkey->irq_dbf, ponkey);
err_free_mem:
input_free_device(input);
kfree(ponkey);
return error;
}
static int ab8500_ponkey_remove(struct platform_device *pdev)
{
struct ab8500_ponkey *ponkey = platform_get_drvdata(pdev);
free_irq(ponkey->irq_dbf, ponkey);
free_irq(ponkey->irq_dbr, ponkey);
input_unregister_device(ponkey->idev);
kfree(ponkey);
platform_set_drvdata(pdev, NULL);
return 0;
}
#ifdef CONFIG_OF
static const struct of_device_id ab8500_ponkey_match[] = {
{ .compatible = "stericsson,ab8500-ponkey", },
{}
};
#endif
static struct platform_driver ab8500_ponkey_driver = {
.driver = {
.name = "ab8500-poweron-key",
.owner = THIS_MODULE,
.of_match_table = of_match_ptr(ab8500_ponkey_match),
},
.probe = ab8500_ponkey_probe,
.remove = ab8500_ponkey_remove,
};
module_platform_driver(ab8500_ponkey_driver);
MODULE_LICENSE("GPL v2");
MODULE_AUTHOR("Sundar Iyer <sundar.iyer@stericsson.com>");
MODULE_DESCRIPTION("ST-Ericsson AB8500 Power-ON(Pon) Key driver");

123
drivers/input/misc/ad714x-i2c.c Normal file
View File

@@ -0,0 +1,123 @@
/*
* AD714X CapTouch Programmable Controller driver (I2C bus)
*
* Copyright 2009-2011 Analog Devices Inc.
*
* Licensed under the GPL-2 or later.
*/
#include <linux/input.h> /* BUS_I2C */
#include <linux/i2c.h>
#include <linux/module.h>
#include <linux/types.h>
#include <linux/pm.h>
#include "ad714x.h"
#ifdef CONFIG_PM_SLEEP
static int ad714x_i2c_suspend(struct device *dev)
{
return ad714x_disable(i2c_get_clientdata(to_i2c_client(dev)));
}
static int ad714x_i2c_resume(struct device *dev)
{
return ad714x_enable(i2c_get_clientdata(to_i2c_client(dev)));
}
#endif
static SIMPLE_DEV_PM_OPS(ad714x_i2c_pm, ad714x_i2c_suspend, ad714x_i2c_resume);
static int ad714x_i2c_write(struct ad714x_chip *chip,
unsigned short reg, unsigned short data)
{
struct i2c_client *client = to_i2c_client(chip->dev);
int error;
chip->xfer_buf[0] = cpu_to_be16(reg);
chip->xfer_buf[1] = cpu_to_be16(data);
error = i2c_master_send(client, (u8 *)chip->xfer_buf,
2 * sizeof(*chip->xfer_buf));
if (unlikely(error < 0)) {
dev_err(&client->dev, "I2C write error: %d\n", error);
return error;
}
return 0;
}
static int ad714x_i2c_read(struct ad714x_chip *chip,
unsigned short reg, unsigned short *data, size_t len)
{
struct i2c_client *client = to_i2c_client(chip->dev);
int i;
int error;
chip->xfer_buf[0] = cpu_to_be16(reg);
error = i2c_master_send(client, (u8 *)chip->xfer_buf,
sizeof(*chip->xfer_buf));
if (error >= 0)
error = i2c_master_recv(client, (u8 *)chip->xfer_buf,
len * sizeof(*chip->xfer_buf));
if (unlikely(error < 0)) {
dev_err(&client->dev, "I2C read error: %d\n", error);
return error;
}
for (i = 0; i < len; i++)
data[i] = be16_to_cpu(chip->xfer_buf[i]);
return 0;
}
static int ad714x_i2c_probe(struct i2c_client *client,
const struct i2c_device_id *id)
{
struct ad714x_chip *chip;
chip = ad714x_probe(&client->dev, BUS_I2C, client->irq,
ad714x_i2c_read, ad714x_i2c_write);
if (IS_ERR(chip))
return PTR_ERR(chip);
i2c_set_clientdata(client, chip);
return 0;
}
static int ad714x_i2c_remove(struct i2c_client *client)
{
struct ad714x_chip *chip = i2c_get_clientdata(client);
ad714x_remove(chip);
return 0;
}
static const struct i2c_device_id ad714x_id[] = {
{ "ad7142_captouch", 0 },
{ "ad7143_captouch", 0 },
{ "ad7147_captouch", 0 },
{ "ad7147a_captouch", 0 },
{ "ad7148_captouch", 0 },
{ }
};
MODULE_DEVICE_TABLE(i2c, ad714x_id);
static struct i2c_driver ad714x_i2c_driver = {
.driver = {
.name = "ad714x_captouch",
.pm = &ad714x_i2c_pm,
},
.probe = ad714x_i2c_probe,
.remove = ad714x_i2c_remove,
.id_table = ad714x_id,
};
module_i2c_driver(ad714x_i2c_driver);
MODULE_DESCRIPTION("Analog Devices AD714X Capacitance Touch Sensor I2C Bus Driver");
MODULE_AUTHOR("Barry Song <21cnbao@gmail.com>");
MODULE_LICENSE("GPL");

130
drivers/input/misc/ad714x-spi.c Normal file
View File

@@ -0,0 +1,130 @@
/*
* AD714X CapTouch Programmable Controller driver (SPI bus)
*
* Copyright 2009-2011 Analog Devices Inc.
*
* Licensed under the GPL-2 or later.
*/
#include <linux/input.h> /* BUS_SPI */
#include <linux/module.h>
#include <linux/spi/spi.h>
#include <linux/pm.h>
#include <linux/types.h>
#include "ad714x.h"
#define AD714x_SPI_CMD_PREFIX 0xE000 /* bits 15:11 */
#define AD714x_SPI_READ BIT(10)
#ifdef CONFIG_PM_SLEEP
static int ad714x_spi_suspend(struct device *dev)
{
return ad714x_disable(spi_get_drvdata(to_spi_device(dev)));
}
static int ad714x_spi_resume(struct device *dev)
{
return ad714x_enable(spi_get_drvdata(to_spi_device(dev)));
}
#endif
static SIMPLE_DEV_PM_OPS(ad714x_spi_pm, ad714x_spi_suspend, ad714x_spi_resume);
static int ad714x_spi_read(struct ad714x_chip *chip,
unsigned short reg, unsigned short *data, size_t len)
{
struct spi_device *spi = to_spi_device(chip->dev);
struct spi_message message;
struct spi_transfer xfer[2];
int i;
int error;
spi_message_init(&message);
memset(xfer, 0, sizeof(xfer));
chip->xfer_buf[0] = cpu_to_be16(AD714x_SPI_CMD_PREFIX |
AD714x_SPI_READ | reg);
xfer[0].tx_buf = &chip->xfer_buf[0];
xfer[0].len = sizeof(chip->xfer_buf[0]);
spi_message_add_tail(&xfer[0], &message);
xfer[1].rx_buf = &chip->xfer_buf[1];
xfer[1].len = sizeof(chip->xfer_buf[1]) * len;
spi_message_add_tail(&xfer[1], &message);
error = spi_sync(spi, &message);
if (unlikely(error)) {
dev_err(chip->dev, "SPI read error: %d\n", error);
return error;
}
for (i = 0; i < len; i++)
data[i] = be16_to_cpu(chip->xfer_buf[i + 1]);
return 0;
}
static int ad714x_spi_write(struct ad714x_chip *chip,
unsigned short reg, unsigned short data)
{
struct spi_device *spi = to_spi_device(chip->dev);
int error;
chip->xfer_buf[0] = cpu_to_be16(AD714x_SPI_CMD_PREFIX | reg);
chip->xfer_buf[1] = cpu_to_be16(data);
error = spi_write(spi, (u8 *)chip->xfer_buf,
2 * sizeof(*chip->xfer_buf));
if (unlikely(error)) {
dev_err(chip->dev, "SPI write error: %d\n", error);
return error;
}
return 0;
}
static int ad714x_spi_probe(struct spi_device *spi)
{
struct ad714x_chip *chip;
int err;
spi->bits_per_word = 8;
err = spi_setup(spi);
if (err < 0)
return err;
chip = ad714x_probe(&spi->dev, BUS_SPI, spi->irq,
ad714x_spi_read, ad714x_spi_write);
if (IS_ERR(chip))
return PTR_ERR(chip);
spi_set_drvdata(spi, chip);
return 0;
}
static int ad714x_spi_remove(struct spi_device *spi)
{
struct ad714x_chip *chip = spi_get_drvdata(spi);
ad714x_remove(chip);
spi_set_drvdata(spi, NULL);
return 0;
}
static struct spi_driver ad714x_spi_driver = {
.driver = {
.name = "ad714x_captouch",
.owner = THIS_MODULE,
.pm = &ad714x_spi_pm,
},
.probe = ad714x_spi_probe,
.remove = ad714x_spi_remove,
};
module_spi_driver(ad714x_spi_driver);
MODULE_DESCRIPTION("Analog Devices AD714X Capacitance Touch Sensor SPI Bus Driver");
MODULE_AUTHOR("Barry Song <21cnbao@gmail.com>");
MODULE_LICENSE("GPL");

1261
drivers/input/misc/ad714x.c Normal file
View File

File diff suppressed because it is too large Load Diff

55
drivers/input/misc/ad714x.h Normal file
View File

@@ -0,0 +1,55 @@
/*
* AD714X CapTouch Programmable Controller driver (bus interfaces)
*
* Copyright 2009-2011 Analog Devices Inc.
*
* Licensed under the GPL-2 or later.
*/
#ifndef _AD714X_H_
#define _AD714X_H_
#include <linux/types.h>
#define STAGE_NUM 12
struct device;
struct ad714x_platform_data;
struct ad714x_driver_data;
struct ad714x_chip;
typedef int (*ad714x_read_t)(struct ad714x_chip *, unsigned short, unsigned short *, size_t);
typedef int (*ad714x_write_t)(struct ad714x_chip *, unsigned short, unsigned short);
struct ad714x_chip {
unsigned short l_state;
unsigned short h_state;
unsigned short c_state;
unsigned short adc_reg[STAGE_NUM];
unsigned short amb_reg[STAGE_NUM];
unsigned short sensor_val[STAGE_NUM];
struct ad714x_platform_data *hw;
struct ad714x_driver_data *sw;
int irq;
struct device *dev;
ad714x_read_t read;
ad714x_write_t write;
struct mutex mutex;
unsigned product;
unsigned version;
__be16 xfer_buf[16] ____cacheline_aligned;
};
int ad714x_disable(struct ad714x_chip *ad714x);
int ad714x_enable(struct ad714x_chip *ad714x);
struct ad714x_chip *ad714x_probe(struct device *dev, u16 bus_type, int irq,
ad714x_read_t read, ad714x_write_t write);
void ad714x_remove(struct ad714x_chip *ad714x);
#endif

155
drivers/input/misc/adxl34x-i2c.c Normal file
View File

@@ -0,0 +1,155 @@
/*
* ADLX345/346 Three-Axis Digital Accelerometers (I2C Interface)
*
* Enter bugs at http://blackfin.uclinux.org/
*
* Copyright (C) 2009 Michael Hennerich, Analog Devices Inc.
* Licensed under the GPL-2 or later.
*/
#include <linux/input.h> /* BUS_I2C */
#include <linux/i2c.h>
#include <linux/module.h>
#include <linux/types.h>
#include <linux/pm.h>
#include "adxl34x.h"
static int adxl34x_smbus_read(struct device *dev, unsigned char reg)
{
struct i2c_client *client = to_i2c_client(dev);
return i2c_smbus_read_byte_data(client, reg);
}
static int adxl34x_smbus_write(struct device *dev,
unsigned char reg, unsigned char val)
{
struct i2c_client *client = to_i2c_client(dev);
return i2c_smbus_write_byte_data(client, reg, val);
}
static int adxl34x_smbus_read_block(struct device *dev,
unsigned char reg, int count,
void *buf)
{
struct i2c_client *client = to_i2c_client(dev);
return i2c_smbus_read_i2c_block_data(client, reg, count, buf);
}
static int adxl34x_i2c_read_block(struct device *dev,
unsigned char reg, int count,
void *buf)
{
struct i2c_client *client = to_i2c_client(dev);
int ret;
ret = i2c_master_send(client, &reg, 1);
if (ret < 0)
return ret;
ret = i2c_master_recv(client, buf, count);
if (ret < 0)
return ret;
if (ret != count)
return -EIO;
return 0;
}
static const struct adxl34x_bus_ops adxl34x_smbus_bops = {
.bustype = BUS_I2C,
.write = adxl34x_smbus_write,
.read = adxl34x_smbus_read,
.read_block = adxl34x_smbus_read_block,
};
static const struct adxl34x_bus_ops adxl34x_i2c_bops = {
.bustype = BUS_I2C,
.write = adxl34x_smbus_write,
.read = adxl34x_smbus_read,
.read_block = adxl34x_i2c_read_block,
};
static int adxl34x_i2c_probe(struct i2c_client *client,
const struct i2c_device_id *id)
{
struct adxl34x *ac;
int error;
error = i2c_check_functionality(client->adapter,
I2C_FUNC_SMBUS_BYTE_DATA);
if (!error) {
dev_err(&client->dev, "SMBUS Byte Data not Supported\n");
return -EIO;
}
ac = adxl34x_probe(&client->dev, client->irq, false,
i2c_check_functionality(client->adapter,
I2C_FUNC_SMBUS_READ_I2C_BLOCK) ?
&adxl34x_smbus_bops : &adxl34x_i2c_bops);
if (IS_ERR(ac))
return PTR_ERR(ac);
i2c_set_clientdata(client, ac);
return 0;
}
static int adxl34x_i2c_remove(struct i2c_client *client)
{
struct adxl34x *ac = i2c_get_clientdata(client);
return adxl34x_remove(ac);
}
#ifdef CONFIG_PM_SLEEP
static int adxl34x_i2c_suspend(struct device *dev)
{
struct i2c_client *client = to_i2c_client(dev);
struct adxl34x *ac = i2c_get_clientdata(client);
adxl34x_suspend(ac);
return 0;
}
static int adxl34x_i2c_resume(struct device *dev)
{
struct i2c_client *client = to_i2c_client(dev);
struct adxl34x *ac = i2c_get_clientdata(client);
adxl34x_resume(ac);
return 0;
}
#endif
static SIMPLE_DEV_PM_OPS(adxl34x_i2c_pm, adxl34x_i2c_suspend,
adxl34x_i2c_resume);
static const struct i2c_device_id adxl34x_id[] = {
{ "adxl34x", 0 },
{ }
};
MODULE_DEVICE_TABLE(i2c, adxl34x_id);
static struct i2c_driver adxl34x_driver = {
.driver = {
.name = "adxl34x",
.owner = THIS_MODULE,
.pm = &adxl34x_i2c_pm,
},
.probe = adxl34x_i2c_probe,
.remove = adxl34x_i2c_remove,
.id_table = adxl34x_id,
};
module_i2c_driver(adxl34x_driver);
MODULE_AUTHOR("Michael Hennerich <hennerich@blackfin.uclinux.org>");
MODULE_DESCRIPTION("ADXL345/346 Three-Axis Digital Accelerometer I2C Bus Driver");
MODULE_LICENSE("GPL");

136
drivers/input/misc/adxl34x-spi.c Normal file
View File

@@ -0,0 +1,136 @@
/*
* ADLX345/346 Three-Axis Digital Accelerometers (SPI Interface)
*
* Enter bugs at http://blackfin.uclinux.org/
*
* Copyright (C) 2009 Michael Hennerich, Analog Devices Inc.
* Licensed under the GPL-2 or later.
*/
#include <linux/input.h> /* BUS_SPI */
#include <linux/module.h>
#include <linux/spi/spi.h>
#include <linux/pm.h>
#include <linux/types.h>
#include "adxl34x.h"
#define MAX_SPI_FREQ_HZ 5000000
#define MAX_FREQ_NO_FIFODELAY 1500000
#define ADXL34X_CMD_MULTB (1 << 6)
#define ADXL34X_CMD_READ (1 << 7)
#define ADXL34X_WRITECMD(reg) (reg & 0x3F)
#define ADXL34X_READCMD(reg) (ADXL34X_CMD_READ | (reg & 0x3F))
#define ADXL34X_READMB_CMD(reg) (ADXL34X_CMD_READ | ADXL34X_CMD_MULTB \
| (reg & 0x3F))
static int adxl34x_spi_read(struct device *dev, unsigned char reg)
{
struct spi_device *spi = to_spi_device(dev);
unsigned char cmd;
cmd = ADXL34X_READCMD(reg);
return spi_w8r8(spi, cmd);
}
static int adxl34x_spi_write(struct device *dev,
unsigned char reg, unsigned char val)
{
struct spi_device *spi = to_spi_device(dev);
unsigned char buf[2];
buf[0] = ADXL34X_WRITECMD(reg);
buf[1] = val;
return spi_write(spi, buf, sizeof(buf));
}
static int adxl34x_spi_read_block(struct device *dev,
unsigned char reg, int count,
void *buf)
{
struct spi_device *spi = to_spi_device(dev);
ssize_t status;
reg = ADXL34X_READMB_CMD(reg);
status = spi_write_then_read(spi, &reg, 1, buf, count);
return (status < 0) ? status : 0;
}
static const struct adxl34x_bus_ops adxl34x_spi_bops = {
.bustype = BUS_SPI,
.write = adxl34x_spi_write,
.read = adxl34x_spi_read,
.read_block = adxl34x_spi_read_block,
};
static int adxl34x_spi_probe(struct spi_device *spi)
{
struct adxl34x *ac;
/* don't exceed max specified SPI CLK frequency */
if (spi->max_speed_hz > MAX_SPI_FREQ_HZ) {
dev_err(&spi->dev, "SPI CLK %d Hz too fast\n", spi->max_speed_hz);
return -EINVAL;
}
ac = adxl34x_probe(&spi->dev, spi->irq,
spi->max_speed_hz > MAX_FREQ_NO_FIFODELAY,
&adxl34x_spi_bops);
if (IS_ERR(ac))
return PTR_ERR(ac);
spi_set_drvdata(spi, ac);
return 0;
}
static int adxl34x_spi_remove(struct spi_device *spi)
{
struct adxl34x *ac = spi_get_drvdata(spi);
return adxl34x_remove(ac);
}
#ifdef CONFIG_PM_SLEEP
static int adxl34x_spi_suspend(struct device *dev)
{
struct spi_device *spi = to_spi_device(dev);
struct adxl34x *ac = spi_get_drvdata(spi);
adxl34x_suspend(ac);
return 0;
}
static int adxl34x_spi_resume(struct device *dev)
{
struct spi_device *spi = to_spi_device(dev);
struct adxl34x *ac = spi_get_drvdata(spi);
adxl34x_resume(ac);
return 0;
}
#endif
static SIMPLE_DEV_PM_OPS(adxl34x_spi_pm, adxl34x_spi_suspend,
adxl34x_spi_resume);
static struct spi_driver adxl34x_driver = {
.driver = {
.name = "adxl34x",
.owner = THIS_MODULE,
.pm = &adxl34x_spi_pm,
},
.probe = adxl34x_spi_probe,
.remove = adxl34x_spi_remove,
};
module_spi_driver(adxl34x_driver);
MODULE_AUTHOR("Michael Hennerich <hennerich@blackfin.uclinux.org>");
MODULE_DESCRIPTION("ADXL345/346 Three-Axis Digital Accelerometer SPI Bus Driver");
MODULE_LICENSE("GPL");

914
drivers/input/misc/adxl34x.c Normal file
View File

@@ -0,0 +1,914 @@
/*
* ADXL345/346 Three-Axis Digital Accelerometers
*
* Enter bugs at http://blackfin.uclinux.org/
*
* Copyright (C) 2009 Michael Hennerich, Analog Devices Inc.
* Licensed under the GPL-2 or later.
*/
#include <linux/device.h>
#include <linux/init.h>
#include <linux/delay.h>
#include <linux/input.h>
#include <linux/interrupt.h>
#include <linux/irq.h>
#include <linux/slab.h>
#include <linux/workqueue.h>
#include <linux/input/adxl34x.h>
#include <linux/module.h>
#include "adxl34x.h"
/* ADXL345/6 Register Map */
#define DEVID 0x00 /* R Device ID */
#define THRESH_TAP 0x1D /* R/W Tap threshold */
#define OFSX 0x1E /* R/W X-axis offset */
#define OFSY 0x1F /* R/W Y-axis offset */
#define OFSZ 0x20 /* R/W Z-axis offset */
#define DUR 0x21 /* R/W Tap duration */
#define LATENT 0x22 /* R/W Tap latency */
#define WINDOW 0x23 /* R/W Tap window */
#define THRESH_ACT 0x24 /* R/W Activity threshold */
#define THRESH_INACT 0x25 /* R/W Inactivity threshold */
#define TIME_INACT 0x26 /* R/W Inactivity time */
#define ACT_INACT_CTL 0x27 /* R/W Axis enable control for activity and */
/* inactivity detection */
#define THRESH_FF 0x28 /* R/W Free-fall threshold */
#define TIME_FF 0x29 /* R/W Free-fall time */
#define TAP_AXES 0x2A /* R/W Axis control for tap/double tap */
#define ACT_TAP_STATUS 0x2B /* R Source of tap/double tap */
#define BW_RATE 0x2C /* R/W Data rate and power mode control */
#define POWER_CTL 0x2D /* R/W Power saving features control */
#define INT_ENABLE 0x2E /* R/W Interrupt enable control */
#define INT_MAP 0x2F /* R/W Interrupt mapping control */
#define INT_SOURCE 0x30 /* R Source of interrupts */
#define DATA_FORMAT 0x31 /* R/W Data format control */
#define DATAX0 0x32 /* R X-Axis Data 0 */
#define DATAX1 0x33 /* R X-Axis Data 1 */
#define DATAY0 0x34 /* R Y-Axis Data 0 */
#define DATAY1 0x35 /* R Y-Axis Data 1 */
#define DATAZ0 0x36 /* R Z-Axis Data 0 */
#define DATAZ1 0x37 /* R Z-Axis Data 1 */
#define FIFO_CTL 0x38 /* R/W FIFO control */
#define FIFO_STATUS 0x39 /* R FIFO status */
#define TAP_SIGN 0x3A /* R Sign and source for tap/double tap */
/* Orientation ADXL346 only */
#define ORIENT_CONF 0x3B /* R/W Orientation configuration */
#define ORIENT 0x3C /* R Orientation status */
/* DEVIDs */
#define ID_ADXL345 0xE5
#define ID_ADXL346 0xE6
/* INT_ENABLE/INT_MAP/INT_SOURCE Bits */
#define DATA_READY (1 << 7)
#define SINGLE_TAP (1 << 6)
#define DOUBLE_TAP (1 << 5)
#define ACTIVITY (1 << 4)
#define INACTIVITY (1 << 3)
#define FREE_FALL (1 << 2)
#define WATERMARK (1 << 1)
#define OVERRUN (1 << 0)
/* ACT_INACT_CONTROL Bits */
#define ACT_ACDC (1 << 7)
#define ACT_X_EN (1 << 6)
#define ACT_Y_EN (1 << 5)
#define ACT_Z_EN (1 << 4)
#define INACT_ACDC (1 << 3)
#define INACT_X_EN (1 << 2)
#define INACT_Y_EN (1 << 1)
#define INACT_Z_EN (1 << 0)
/* TAP_AXES Bits */
#define SUPPRESS (1 << 3)
#define TAP_X_EN (1 << 2)
#define TAP_Y_EN (1 << 1)
#define TAP_Z_EN (1 << 0)
/* ACT_TAP_STATUS Bits */
#define ACT_X_SRC (1 << 6)
#define ACT_Y_SRC (1 << 5)
#define ACT_Z_SRC (1 << 4)
#define ASLEEP (1 << 3)
#define TAP_X_SRC (1 << 2)
#define TAP_Y_SRC (1 << 1)
#define TAP_Z_SRC (1 << 0)
/* BW_RATE Bits */
#define LOW_POWER (1 << 4)
#define RATE(x) ((x) & 0xF)
/* POWER_CTL Bits */
#define PCTL_LINK (1 << 5)
#define PCTL_AUTO_SLEEP (1 << 4)
#define PCTL_MEASURE (1 << 3)
#define PCTL_SLEEP (1 << 2)
#define PCTL_WAKEUP(x) ((x) & 0x3)
/* DATA_FORMAT Bits */
#define SELF_TEST (1 << 7)
#define SPI (1 << 6)
#define INT_INVERT (1 << 5)
#define FULL_RES (1 << 3)
#define JUSTIFY (1 << 2)
#define RANGE(x) ((x) & 0x3)
#define RANGE_PM_2g 0
#define RANGE_PM_4g 1
#define RANGE_PM_8g 2
#define RANGE_PM_16g 3
/*
* Maximum value our axis may get in full res mode for the input device
* (signed 13 bits)
*/
#define ADXL_FULLRES_MAX_VAL 4096
/*
* Maximum value our axis may get in fixed res mode for the input device
* (signed 10 bits)
*/
#define ADXL_FIXEDRES_MAX_VAL 512
/* FIFO_CTL Bits */
#define FIFO_MODE(x) (((x) & 0x3) << 6)
#define FIFO_BYPASS 0
#define FIFO_FIFO 1
#define FIFO_STREAM 2
#define FIFO_TRIGGER 3
#define TRIGGER (1 << 5)
#define SAMPLES(x) ((x) & 0x1F)
/* FIFO_STATUS Bits */
#define FIFO_TRIG (1 << 7)
#define ENTRIES(x) ((x) & 0x3F)
/* TAP_SIGN Bits ADXL346 only */
#define XSIGN (1 << 6)
#define YSIGN (1 << 5)
#define ZSIGN (1 << 4)
#define XTAP (1 << 3)
#define YTAP (1 << 2)
#define ZTAP (1 << 1)
/* ORIENT_CONF ADXL346 only */
#define ORIENT_DEADZONE(x) (((x) & 0x7) << 4)
#define ORIENT_DIVISOR(x) ((x) & 0x7)
/* ORIENT ADXL346 only */
#define ADXL346_2D_VALID (1 << 6)
#define ADXL346_2D_ORIENT(x) (((x) & 0x3) >> 4)
#define ADXL346_3D_VALID (1 << 3)
#define ADXL346_3D_ORIENT(x) ((x) & 0x7)
#define ADXL346_2D_PORTRAIT_POS 0 /* +X */
#define ADXL346_2D_PORTRAIT_NEG 1 /* -X */
#define ADXL346_2D_LANDSCAPE_POS 2 /* +Y */
#define ADXL346_2D_LANDSCAPE_NEG 3 /* -Y */
#define ADXL346_3D_FRONT 3 /* +X */
#define ADXL346_3D_BACK 4 /* -X */
#define ADXL346_3D_RIGHT 2 /* +Y */
#define ADXL346_3D_LEFT 5 /* -Y */
#define ADXL346_3D_TOP 1 /* +Z */
#define ADXL346_3D_BOTTOM 6 /* -Z */
#undef ADXL_DEBUG
#define ADXL_X_AXIS 0
#define ADXL_Y_AXIS 1
#define ADXL_Z_AXIS 2
#define AC_READ(ac, reg) ((ac)->bops->read((ac)->dev, reg))
#define AC_WRITE(ac, reg, val) ((ac)->bops->write((ac)->dev, reg, val))
struct axis_triple {
int x;
int y;
int z;
};
struct adxl34x {
struct device *dev;
struct input_dev *input;
struct mutex mutex; /* reentrant protection for struct */
struct adxl34x_platform_data pdata;
struct axis_triple swcal;
struct axis_triple hwcal;
struct axis_triple saved;
char phys[32];
unsigned orient2d_saved;
unsigned orient3d_saved;
bool disabled; /* P: mutex */
bool opened; /* P: mutex */
bool suspended; /* P: mutex */
bool fifo_delay;
int irq;
unsigned model;
unsigned int_mask;
const struct adxl34x_bus_ops *bops;
};
static const struct adxl34x_platform_data adxl34x_default_init = {
.tap_threshold = 35,
.tap_duration = 3,
.tap_latency = 20,
.tap_window = 20,
.tap_axis_control = ADXL_TAP_X_EN | ADXL_TAP_Y_EN | ADXL_TAP_Z_EN,
.act_axis_control = 0xFF,
.activity_threshold = 6,
.inactivity_threshold = 4,
.inactivity_time = 3,
.free_fall_threshold = 8,
.free_fall_time = 0x20,
.data_rate = 8,
.data_range = ADXL_FULL_RES,
.ev_type = EV_ABS,
.ev_code_x = ABS_X, /* EV_REL */
.ev_code_y = ABS_Y, /* EV_REL */
.ev_code_z = ABS_Z, /* EV_REL */
.ev_code_tap = {BTN_TOUCH, BTN_TOUCH, BTN_TOUCH}, /* EV_KEY {x,y,z} */
.power_mode = ADXL_AUTO_SLEEP | ADXL_LINK,
.fifo_mode = ADXL_FIFO_STREAM,
.watermark = 0,
};
static void adxl34x_get_triple(struct adxl34x *ac, struct axis_triple *axis)
{
short buf[3];
ac->bops->read_block(ac->dev, DATAX0, DATAZ1 - DATAX0 + 1, buf);
mutex_lock(&ac->mutex);
ac->saved.x = (s16) le16_to_cpu(buf[0]);
axis->x = ac->saved.x;
ac->saved.y = (s16) le16_to_cpu(buf[1]);
axis->y = ac->saved.y;
ac->saved.z = (s16) le16_to_cpu(buf[2]);
axis->z = ac->saved.z;
mutex_unlock(&ac->mutex);
}
static void adxl34x_service_ev_fifo(struct adxl34x *ac)
{
struct adxl34x_platform_data *pdata = &ac->pdata;
struct axis_triple axis;
adxl34x_get_triple(ac, &axis);
input_event(ac->input, pdata->ev_type, pdata->ev_code_x,
axis.x - ac->swcal.x);
input_event(ac->input, pdata->ev_type, pdata->ev_code_y,
axis.y - ac->swcal.y);
input_event(ac->input, pdata->ev_type, pdata->ev_code_z,
axis.z - ac->swcal.z);
}
static void adxl34x_report_key_single(struct input_dev *input, int key)
{
input_report_key(input, key, true);
input_sync(input);
input_report_key(input, key, false);
}
static void adxl34x_send_key_events(struct adxl34x *ac,
struct adxl34x_platform_data *pdata, int status, int press)
{
int i;
for (i = ADXL_X_AXIS; i <= ADXL_Z_AXIS; i++) {
if (status & (1 << (ADXL_Z_AXIS - i)))
input_report_key(ac->input,
pdata->ev_code_tap[i], press);
}
}
static void adxl34x_do_tap(struct adxl34x *ac,
struct adxl34x_platform_data *pdata, int status)
{
adxl34x_send_key_events(ac, pdata, status, true);
input_sync(ac->input);
adxl34x_send_key_events(ac, pdata, status, false);
}
static irqreturn_t adxl34x_irq(int irq, void *handle)
{
struct adxl34x *ac = handle;
struct adxl34x_platform_data *pdata = &ac->pdata;
int int_stat, tap_stat, samples, orient, orient_code;
/*
* ACT_TAP_STATUS should be read before clearing the interrupt
* Avoid reading ACT_TAP_STATUS in case TAP detection is disabled
*/
if (pdata->tap_axis_control & (TAP_X_EN | TAP_Y_EN | TAP_Z_EN))
tap_stat = AC_READ(ac, ACT_TAP_STATUS);
else
tap_stat = 0;
int_stat = AC_READ(ac, INT_SOURCE);
if (int_stat & FREE_FALL)
adxl34x_report_key_single(ac->input, pdata->ev_code_ff);
if (int_stat & OVERRUN)
dev_dbg(ac->dev, "OVERRUN\n");
if (int_stat & (SINGLE_TAP | DOUBLE_TAP)) {
adxl34x_do_tap(ac, pdata, tap_stat);
if (int_stat & DOUBLE_TAP)
adxl34x_do_tap(ac, pdata, tap_stat);
}
if (pdata->ev_code_act_inactivity) {
if (int_stat & ACTIVITY)
input_report_key(ac->input,
pdata->ev_code_act_inactivity, 1);
if (int_stat & INACTIVITY)
input_report_key(ac->input,
pdata->ev_code_act_inactivity, 0);
}
/*
* ORIENTATION SENSING ADXL346 only
*/
if (pdata->orientation_enable) {
orient = AC_READ(ac, ORIENT);
if ((pdata->orientation_enable & ADXL_EN_ORIENTATION_2D) &&
(orient & ADXL346_2D_VALID)) {
orient_code = ADXL346_2D_ORIENT(orient);
/* Report orientation only when it changes */
if (ac->orient2d_saved != orient_code) {
ac->orient2d_saved = orient_code;
adxl34x_report_key_single(ac->input,
pdata->ev_codes_orient_2d[orient_code]);
}
}
if ((pdata->orientation_enable & ADXL_EN_ORIENTATION_3D) &&
(orient & ADXL346_3D_VALID)) {
orient_code = ADXL346_3D_ORIENT(orient) - 1;
/* Report orientation only when it changes */
if (ac->orient3d_saved != orient_code) {
ac->orient3d_saved = orient_code;
adxl34x_report_key_single(ac->input,
pdata->ev_codes_orient_3d[orient_code]);
}
}
}
if (int_stat & (DATA_READY | WATERMARK)) {
if (pdata->fifo_mode)
samples = ENTRIES(AC_READ(ac, FIFO_STATUS)) + 1;
else
samples = 1;
for (; samples > 0; samples--) {
adxl34x_service_ev_fifo(ac);
/*
* To ensure that the FIFO has
* completely popped, there must be at least 5 us between
* the end of reading the data registers, signified by the
* transition to register 0x38 from 0x37 or the CS pin
* going high, and the start of new reads of the FIFO or
* reading the FIFO_STATUS register. For SPI operation at
* 1.5 MHz or lower, the register addressing portion of the
* transmission is sufficient delay to ensure the FIFO has
* completely popped. It is necessary for SPI operation
* greater than 1.5 MHz to de-assert the CS pin to ensure a
* total of 5 us, which is at most 3.4 us at 5 MHz
* operation.
*/
if (ac->fifo_delay && (samples > 1))
udelay(3);
}
}
input_sync(ac->input);
return IRQ_HANDLED;
}
static void __adxl34x_disable(struct adxl34x *ac)
{
/*
* A '0' places the ADXL34x into standby mode
* with minimum power consumption.
*/
AC_WRITE(ac, POWER_CTL, 0);
}
static void __adxl34x_enable(struct adxl34x *ac)
{
AC_WRITE(ac, POWER_CTL, ac->pdata.power_mode | PCTL_MEASURE);
}
void adxl34x_suspend(struct adxl34x *ac)
{
mutex_lock(&ac->mutex);
if (!ac->suspended && !ac->disabled && ac->opened)
__adxl34x_disable(ac);
ac->suspended = true;
mutex_unlock(&ac->mutex);
}
EXPORT_SYMBOL_GPL(adxl34x_suspend);
void adxl34x_resume(struct adxl34x *ac)
{
mutex_lock(&ac->mutex);
if (ac->suspended && !ac->disabled && ac->opened)
__adxl34x_enable(ac);
ac->suspended = false;
mutex_unlock(&ac->mutex);
}
EXPORT_SYMBOL_GPL(adxl34x_resume);
static ssize_t adxl34x_disable_show(struct device *dev,
struct device_attribute *attr, char *buf)
{
struct adxl34x *ac = dev_get_drvdata(dev);
return sprintf(buf, "%u\n", ac->disabled);
}
static ssize_t adxl34x_disable_store(struct device *dev,
struct device_attribute *attr,
const char *buf, size_t count)
{
struct adxl34x *ac = dev_get_drvdata(dev);
unsigned int val;
int error;
error = kstrtouint(buf, 10, &val);
if (error)
return error;
mutex_lock(&ac->mutex);
if (!ac->suspended && ac->opened) {
if (val) {
if (!ac->disabled)
__adxl34x_disable(ac);
} else {
if (ac->disabled)
__adxl34x_enable(ac);
}
}
ac->disabled = !!val;
mutex_unlock(&ac->mutex);
return count;
}
static DEVICE_ATTR(disable, 0664, adxl34x_disable_show, adxl34x_disable_store);
static ssize_t adxl34x_calibrate_show(struct device *dev,
struct device_attribute *attr, char *buf)
{
struct adxl34x *ac = dev_get_drvdata(dev);
ssize_t count;
mutex_lock(&ac->mutex);
count = sprintf(buf, "%d,%d,%d\n",
ac->hwcal.x * 4 + ac->swcal.x,
ac->hwcal.y * 4 + ac->swcal.y,
ac->hwcal.z * 4 + ac->swcal.z);
mutex_unlock(&ac->mutex);
return count;
}
static ssize_t adxl34x_calibrate_store(struct device *dev,
struct device_attribute *attr,
const char *buf, size_t count)
{
struct adxl34x *ac = dev_get_drvdata(dev);
/*
* Hardware offset calibration has a resolution of 15.6 mg/LSB.
* We use HW calibration and handle the remaining bits in SW. (4mg/LSB)
*/
mutex_lock(&ac->mutex);
ac->hwcal.x -= (ac->saved.x / 4);
ac->swcal.x = ac->saved.x % 4;
ac->hwcal.y -= (ac->saved.y / 4);
ac->swcal.y = ac->saved.y % 4;
ac->hwcal.z -= (ac->saved.z / 4);
ac->swcal.z = ac->saved.z % 4;
AC_WRITE(ac, OFSX, (s8) ac->hwcal.x);
AC_WRITE(ac, OFSY, (s8) ac->hwcal.y);
AC_WRITE(ac, OFSZ, (s8) ac->hwcal.z);
mutex_unlock(&ac->mutex);
return count;
}
static DEVICE_ATTR(calibrate, 0664,
adxl34x_calibrate_show, adxl34x_calibrate_store);
static ssize_t adxl34x_rate_show(struct device *dev,
struct device_attribute *attr, char *buf)
{
struct adxl34x *ac = dev_get_drvdata(dev);
return sprintf(buf, "%u\n", RATE(ac->pdata.data_rate));
}
static ssize_t adxl34x_rate_store(struct device *dev,
struct device_attribute *attr,
const char *buf, size_t count)
{
struct adxl34x *ac = dev_get_drvdata(dev);
unsigned char val;
int error;
error = kstrtou8(buf, 10, &val);
if (error)
return error;
mutex_lock(&ac->mutex);
ac->pdata.data_rate = RATE(val);
AC_WRITE(ac, BW_RATE,
ac->pdata.data_rate |
(ac->pdata.low_power_mode ? LOW_POWER : 0));
mutex_unlock(&ac->mutex);
return count;
}
static DEVICE_ATTR(rate, 0664, adxl34x_rate_show, adxl34x_rate_store);
static ssize_t adxl34x_autosleep_show(struct device *dev,
struct device_attribute *attr, char *buf)
{
struct adxl34x *ac = dev_get_drvdata(dev);
return sprintf(buf, "%u\n",
ac->pdata.power_mode & (PCTL_AUTO_SLEEP | PCTL_LINK) ? 1 : 0);
}
static ssize_t adxl34x_autosleep_store(struct device *dev,
struct device_attribute *attr,
const char *buf, size_t count)
{
struct adxl34x *ac = dev_get_drvdata(dev);
unsigned int val;
int error;
error = kstrtouint(buf, 10, &val);
if (error)
return error;
mutex_lock(&ac->mutex);
if (val)
ac->pdata.power_mode |= (PCTL_AUTO_SLEEP | PCTL_LINK);
else
ac->pdata.power_mode &= ~(PCTL_AUTO_SLEEP | PCTL_LINK);
if (!ac->disabled && !ac->suspended && ac->opened)
AC_WRITE(ac, POWER_CTL, ac->pdata.power_mode | PCTL_MEASURE);
mutex_unlock(&ac->mutex);
return count;
}
static DEVICE_ATTR(autosleep, 0664,
adxl34x_autosleep_show, adxl34x_autosleep_store);
static ssize_t adxl34x_position_show(struct device *dev,
struct device_attribute *attr, char *buf)
{
struct adxl34x *ac = dev_get_drvdata(dev);
ssize_t count;
mutex_lock(&ac->mutex);
count = sprintf(buf, "(%d, %d, %d)\n",
ac->saved.x, ac->saved.y, ac->saved.z);
mutex_unlock(&ac->mutex);
return count;
}
static DEVICE_ATTR(position, S_IRUGO, adxl34x_position_show, NULL);
#ifdef ADXL_DEBUG
static ssize_t adxl34x_write_store(struct device *dev,
struct device_attribute *attr,
const char *buf, size_t count)
{
struct adxl34x *ac = dev_get_drvdata(dev);
unsigned int val;
int error;
/*
* This allows basic ADXL register write access for debug purposes.
*/
error = kstrtouint(buf, 16, &val);
if (error)
return error;
mutex_lock(&ac->mutex);
AC_WRITE(ac, val >> 8, val & 0xFF);
mutex_unlock(&ac->mutex);
return count;
}
static DEVICE_ATTR(write, 0664, NULL, adxl34x_write_store);
#endif
static struct attribute *adxl34x_attributes[] = {
&dev_attr_disable.attr,
&dev_attr_calibrate.attr,
&dev_attr_rate.attr,
&dev_attr_autosleep.attr,
&dev_attr_position.attr,
#ifdef ADXL_DEBUG
&dev_attr_write.attr,
#endif
NULL
};
static const struct attribute_group adxl34x_attr_group = {
.attrs = adxl34x_attributes,
};
static int adxl34x_input_open(struct input_dev *input)
{
struct adxl34x *ac = input_get_drvdata(input);
mutex_lock(&ac->mutex);
if (!ac->suspended && !ac->disabled)
__adxl34x_enable(ac);
ac->opened = true;
mutex_unlock(&ac->mutex);
return 0;
}
static void adxl34x_input_close(struct input_dev *input)
{
struct adxl34x *ac = input_get_drvdata(input);
mutex_lock(&ac->mutex);
if (!ac->suspended && !ac->disabled)
__adxl34x_disable(ac);
ac->opened = false;
mutex_unlock(&ac->mutex);
}
struct adxl34x *adxl34x_probe(struct device *dev, int irq,
bool fifo_delay_default,
const struct adxl34x_bus_ops *bops)
{
struct adxl34x *ac;
struct input_dev *input_dev;
const struct adxl34x_platform_data *pdata;
int err, range, i;
unsigned char revid;
if (!irq) {
dev_err(dev, "no IRQ?\n");
err = -ENODEV;
goto err_out;
}
ac = kzalloc(sizeof(*ac), GFP_KERNEL);
input_dev = input_allocate_device();
if (!ac || !input_dev) {
err = -ENOMEM;
goto err_free_mem;
}
ac->fifo_delay = fifo_delay_default;
pdata = dev->platform_data;
if (!pdata) {
dev_dbg(dev,
"No platform data: Using default initialization\n");
pdata = &adxl34x_default_init;
}
ac->pdata = *pdata;
pdata = &ac->pdata;
ac->input = input_dev;
ac->dev = dev;
ac->irq = irq;
ac->bops = bops;
mutex_init(&ac->mutex);
input_dev->name = "ADXL34x accelerometer";
revid = AC_READ(ac, DEVID);
switch (revid) {
case ID_ADXL345:
ac->model = 345;
break;
case ID_ADXL346:
ac->model = 346;
break;
default:
dev_err(dev, "Failed to probe %s\n", input_dev->name);
err = -ENODEV;
goto err_free_mem;
}
snprintf(ac->phys, sizeof(ac->phys), "%s/input0", dev_name(dev));
input_dev->phys = ac->phys;
input_dev->dev.parent = dev;
input_dev->id.product = ac->model;
input_dev->id.bustype = bops->bustype;
input_dev->open = adxl34x_input_open;
input_dev->close = adxl34x_input_close;
input_set_drvdata(input_dev, ac);
__set_bit(ac->pdata.ev_type, input_dev->evbit);
if (ac->pdata.ev_type == EV_REL) {
__set_bit(REL_X, input_dev->relbit);
__set_bit(REL_Y, input_dev->relbit);
__set_bit(REL_Z, input_dev->relbit);
} else {
/* EV_ABS */
__set_bit(ABS_X, input_dev->absbit);
__set_bit(ABS_Y, input_dev->absbit);
__set_bit(ABS_Z, input_dev->absbit);
if (pdata->data_range & FULL_RES)
range = ADXL_FULLRES_MAX_VAL; /* Signed 13-bit */
else
range = ADXL_FIXEDRES_MAX_VAL; /* Signed 10-bit */
input_set_abs_params(input_dev, ABS_X, -range, range, 3, 3);
input_set_abs_params(input_dev, ABS_Y, -range, range, 3, 3);
input_set_abs_params(input_dev, ABS_Z, -range, range, 3, 3);
}
__set_bit(EV_KEY, input_dev->evbit);
__set_bit(pdata->ev_code_tap[ADXL_X_AXIS], input_dev->keybit);
__set_bit(pdata->ev_code_tap[ADXL_Y_AXIS], input_dev->keybit);
__set_bit(pdata->ev_code_tap[ADXL_Z_AXIS], input_dev->keybit);
if (pdata->ev_code_ff) {
ac->int_mask = FREE_FALL;
__set_bit(pdata->ev_code_ff, input_dev->keybit);
}
if (pdata->ev_code_act_inactivity)
__set_bit(pdata->ev_code_act_inactivity, input_dev->keybit);
ac->int_mask |= ACTIVITY | INACTIVITY;
if (pdata->watermark) {
ac->int_mask |= WATERMARK;
if (!FIFO_MODE(pdata->fifo_mode))
ac->pdata.fifo_mode |= FIFO_STREAM;
} else {
ac->int_mask |= DATA_READY;
}
if (pdata->tap_axis_control & (TAP_X_EN | TAP_Y_EN | TAP_Z_EN))
ac->int_mask |= SINGLE_TAP | DOUBLE_TAP;
if (FIFO_MODE(pdata->fifo_mode) == FIFO_BYPASS)
ac->fifo_delay = false;
AC_WRITE(ac, POWER_CTL, 0);
err = request_threaded_irq(ac->irq, NULL, adxl34x_irq,
IRQF_TRIGGER_HIGH | IRQF_ONESHOT,
dev_name(dev), ac);
if (err) {
dev_err(dev, "irq %d busy?\n", ac->irq);
goto err_free_mem;
}
err = sysfs_create_group(&dev->kobj, &adxl34x_attr_group);
if (err)
goto err_free_irq;
err = input_register_device(input_dev);
if (err)
goto err_remove_attr;
AC_WRITE(ac, OFSX, pdata->x_axis_offset);
ac->hwcal.x = pdata->x_axis_offset;
AC_WRITE(ac, OFSY, pdata->y_axis_offset);
ac->hwcal.y = pdata->y_axis_offset;
AC_WRITE(ac, OFSZ, pdata->z_axis_offset);
ac->hwcal.z = pdata->z_axis_offset;
AC_WRITE(ac, THRESH_TAP, pdata->tap_threshold);
AC_WRITE(ac, DUR, pdata->tap_duration);
AC_WRITE(ac, LATENT, pdata->tap_latency);
AC_WRITE(ac, WINDOW, pdata->tap_window);
AC_WRITE(ac, THRESH_ACT, pdata->activity_threshold);
AC_WRITE(ac, THRESH_INACT, pdata->inactivity_threshold);
AC_WRITE(ac, TIME_INACT, pdata->inactivity_time);
AC_WRITE(ac, THRESH_FF, pdata->free_fall_threshold);
AC_WRITE(ac, TIME_FF, pdata->free_fall_time);
AC_WRITE(ac, TAP_AXES, pdata->tap_axis_control);
AC_WRITE(ac, ACT_INACT_CTL, pdata->act_axis_control);
AC_WRITE(ac, BW_RATE, RATE(ac->pdata.data_rate) |
(pdata->low_power_mode ? LOW_POWER : 0));
AC_WRITE(ac, DATA_FORMAT, pdata->data_range);
AC_WRITE(ac, FIFO_CTL, FIFO_MODE(pdata->fifo_mode) |
SAMPLES(pdata->watermark));
if (pdata->use_int2) {
/* Map all INTs to INT2 */
AC_WRITE(ac, INT_MAP, ac->int_mask | OVERRUN);
} else {
/* Map all INTs to INT1 */
AC_WRITE(ac, INT_MAP, 0);
}
if (ac->model == 346 && ac->pdata.orientation_enable) {
AC_WRITE(ac, ORIENT_CONF,
ORIENT_DEADZONE(ac->pdata.deadzone_angle) |
ORIENT_DIVISOR(ac->pdata.divisor_length));
ac->orient2d_saved = 1234;
ac->orient3d_saved = 1234;
if (pdata->orientation_enable & ADXL_EN_ORIENTATION_3D)
for (i = 0; i < ARRAY_SIZE(pdata->ev_codes_orient_3d); i++)
__set_bit(pdata->ev_codes_orient_3d[i],
input_dev->keybit);
if (pdata->orientation_enable & ADXL_EN_ORIENTATION_2D)
for (i = 0; i < ARRAY_SIZE(pdata->ev_codes_orient_2d); i++)
__set_bit(pdata->ev_codes_orient_2d[i],
input_dev->keybit);
} else {
ac->pdata.orientation_enable = 0;
}
AC_WRITE(ac, INT_ENABLE, ac->int_mask | OVERRUN);
ac->pdata.power_mode &= (PCTL_AUTO_SLEEP | PCTL_LINK);
return ac;
err_remove_attr:
sysfs_remove_group(&dev->kobj, &adxl34x_attr_group);
err_free_irq:
free_irq(ac->irq, ac);
err_free_mem:
input_free_device(input_dev);
kfree(ac);
err_out:
return ERR_PTR(err);
}
EXPORT_SYMBOL_GPL(adxl34x_probe);
int adxl34x_remove(struct adxl34x *ac)
{
sysfs_remove_group(&ac->dev->kobj, &adxl34x_attr_group);
free_irq(ac->irq, ac);
input_unregister_device(ac->input);
dev_dbg(ac->dev, "unregistered accelerometer\n");
kfree(ac);
return 0;
}
EXPORT_SYMBOL_GPL(adxl34x_remove);
MODULE_AUTHOR("Michael Hennerich <hennerich@blackfin.uclinux.org>");
MODULE_DESCRIPTION("ADXL345/346 Three-Axis Digital Accelerometer Driver");
MODULE_LICENSE("GPL");

30
drivers/input/misc/adxl34x.h Normal file
View File

@@ -0,0 +1,30 @@
/*
* ADXL345/346 Three-Axis Digital Accelerometers (I2C/SPI Interface)
*
* Enter bugs at http://blackfin.uclinux.org/
*
* Copyright (C) 2009 Michael Hennerich, Analog Devices Inc.
* Licensed under the GPL-2 or later.
*/
#ifndef _ADXL34X_H_
#define _ADXL34X_H_
struct device;
struct adxl34x;
struct adxl34x_bus_ops {
u16 bustype;
int (*read)(struct device *, unsigned char);
int (*read_block)(struct device *, unsigned char, int, void *);
int (*write)(struct device *, unsigned char, unsigned char);
};
void adxl34x_suspend(struct adxl34x *ac);
void adxl34x_resume(struct adxl34x *ac);
struct adxl34x *adxl34x_probe(struct device *dev, int irq,
bool fifo_delay_default,
const struct adxl34x_bus_ops *bops);
int adxl34x_remove(struct adxl34x *ac);
#endif

350
drivers/input/misc/apanel.c Normal file
View File

@@ -0,0 +1,350 @@
/*
* Fujitsu Lifebook Application Panel button drive
*
* Copyright (C) 2007 Stephen Hemminger <shemminger@linux-foundation.org>
* Copyright (C) 2001-2003 Jochen Eisinger <jochen@penguin-breeder.org>
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 as published by
* the Free Software Foundation.
*
* Many Fujitsu Lifebook laptops have a small panel of buttons that are
* accessible via the i2c/smbus interface. This driver polls those
* buttons and generates input events.
*
* For more details see:
* http://apanel.sourceforge.net/tech.php
*/
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/ioport.h>
#include <linux/io.h>
#include <linux/input-polldev.h>
#include <linux/i2c.h>
#include <linux/workqueue.h>
#include <linux/leds.h>
#define APANEL_NAME "Fujitsu Application Panel"
#define APANEL_VERSION "1.3.1"
#define APANEL "apanel"
/* How often we poll keys - msecs */
#define POLL_INTERVAL_DEFAULT 1000
/* Magic constants in BIOS that tell about buttons */
enum apanel_devid {
APANEL_DEV_NONE = 0,
APANEL_DEV_APPBTN = 1,
APANEL_DEV_CDBTN = 2,
APANEL_DEV_LCD = 3,
APANEL_DEV_LED = 4,
APANEL_DEV_MAX,
};
enum apanel_chip {
CHIP_NONE = 0,
CHIP_OZ992C = 1,
CHIP_OZ163T = 2,
CHIP_OZ711M3 = 4,
};
/* Result of BIOS snooping/probing -- what features are supported */
static enum apanel_chip device_chip[APANEL_DEV_MAX];
#define MAX_PANEL_KEYS 12
struct apanel {
struct input_polled_dev *ipdev;
struct i2c_client *client;
unsigned short keymap[MAX_PANEL_KEYS];
u16 nkeys;
u16 led_bits;
struct work_struct led_work;
struct led_classdev mail_led;
};
static int apanel_probe(struct i2c_client *, const struct i2c_device_id *);
static void report_key(struct input_dev *input, unsigned keycode)
{
pr_debug(APANEL ": report key %#x\n", keycode);
input_report_key(input, keycode, 1);
input_sync(input);
input_report_key(input, keycode, 0);
input_sync(input);
}
/* Poll for key changes
*
* Read Application keys via SMI
* A (0x4), B (0x8), Internet (0x2), Email (0x1).
*
* CD keys:
* Forward (0x100), Rewind (0x200), Stop (0x400), Pause (0x800)
*/
static void apanel_poll(struct input_polled_dev *ipdev)
{
struct apanel *ap = ipdev->private;
struct input_dev *idev = ipdev->input;
u8 cmd = device_chip[APANEL_DEV_APPBTN] == CHIP_OZ992C ? 0 : 8;
s32 data;
int i;
data = i2c_smbus_read_word_data(ap->client, cmd);
if (data < 0)
return; /* ignore errors (due to ACPI??) */
/* write back to clear latch */
i2c_smbus_write_word_data(ap->client, cmd, 0);
if (!data)
return;
dev_dbg(&idev->dev, APANEL ": data %#x\n", data);
for (i = 0; i < idev->keycodemax; i++)
if ((1u << i) & data)
report_key(idev, ap->keymap[i]);
}
/* Track state changes of LED */
static void led_update(struct work_struct *work)
{
struct apanel *ap = container_of(work, struct apanel, led_work);
i2c_smbus_write_word_data(ap->client, 0x10, ap->led_bits);
}
static void mail_led_set(struct led_classdev *led,
enum led_brightness value)
{
struct apanel *ap = container_of(led, struct apanel, mail_led);
if (value != LED_OFF)
ap->led_bits |= 0x8000;
else
ap->led_bits &= ~0x8000;
schedule_work(&ap->led_work);
}
static int apanel_remove(struct i2c_client *client)
{
struct apanel *ap = i2c_get_clientdata(client);
if (device_chip[APANEL_DEV_LED] != CHIP_NONE)
led_classdev_unregister(&ap->mail_led);
input_unregister_polled_device(ap->ipdev);
input_free_polled_device(ap->ipdev);
return 0;
}
static void apanel_shutdown(struct i2c_client *client)
{
apanel_remove(client);
}
static const struct i2c_device_id apanel_id[] = {
{ "fujitsu_apanel", 0 },
{ }
};
MODULE_DEVICE_TABLE(i2c, apanel_id);
static struct i2c_driver apanel_driver = {
.driver = {
.name = APANEL,
},
.probe = &apanel_probe,
.remove = &apanel_remove,
.shutdown = &apanel_shutdown,
.id_table = apanel_id,
};
static struct apanel apanel = {
.keymap = {
[0] = KEY_MAIL,
[1] = KEY_WWW,
[2] = KEY_PROG2,
[3] = KEY_PROG1,
[8] = KEY_FORWARD,
[9] = KEY_REWIND,
[10] = KEY_STOPCD,
[11] = KEY_PLAYPAUSE,
},
.mail_led = {
.name = "mail:blue",
.brightness_set = mail_led_set,
},
};
/* NB: Only one panel on the i2c. */
static int apanel_probe(struct i2c_client *client,
const struct i2c_device_id *id)
{
struct apanel *ap;
struct input_polled_dev *ipdev;
struct input_dev *idev;
u8 cmd = device_chip[APANEL_DEV_APPBTN] == CHIP_OZ992C ? 0 : 8;
int i, err = -ENOMEM;
ap = &apanel;
ipdev = input_allocate_polled_device();
if (!ipdev)
goto out1;
ap->ipdev = ipdev;
ap->client = client;
i2c_set_clientdata(client, ap);
err = i2c_smbus_write_word_data(client, cmd, 0);
if (err) {
dev_warn(&client->dev, APANEL ": smbus write error %d\n",
err);
goto out3;
}
ipdev->poll = apanel_poll;
ipdev->poll_interval = POLL_INTERVAL_DEFAULT;
ipdev->private = ap;
idev = ipdev->input;
idev->name = APANEL_NAME " buttons";
idev->phys = "apanel/input0";
idev->id.bustype = BUS_HOST;
idev->dev.parent = &client->dev;
set_bit(EV_KEY, idev->evbit);
idev->keycode = ap->keymap;
idev->keycodesize = sizeof(ap->keymap[0]);
idev->keycodemax = (device_chip[APANEL_DEV_CDBTN] != CHIP_NONE) ? 12 : 4;
for (i = 0; i < idev->keycodemax; i++)
if (ap->keymap[i])
set_bit(ap->keymap[i], idev->keybit);
err = input_register_polled_device(ipdev);
if (err)
goto out3;
INIT_WORK(&ap->led_work, led_update);
if (device_chip[APANEL_DEV_LED] != CHIP_NONE) {
err = led_classdev_register(&client->dev, &ap->mail_led);
if (err)
goto out4;
}
return 0;
out4:
input_unregister_polled_device(ipdev);
out3:
input_free_polled_device(ipdev);
out1:
return err;
}
/* Scan the system ROM for the signature "FJKEYINF" */
static __init const void __iomem *bios_signature(const void __iomem *bios)
{
ssize_t offset;
const unsigned char signature[] = "FJKEYINF";
for (offset = 0; offset < 0x10000; offset += 0x10) {
if (check_signature(bios + offset, signature,
sizeof(signature)-1))
return bios + offset;
}
pr_notice(APANEL ": Fujitsu BIOS signature '%s' not found...\n",
signature);
return NULL;
}
static int __init apanel_init(void)
{
void __iomem *bios;
const void __iomem *p;
u8 devno;
unsigned char i2c_addr;
int found = 0;
bios = ioremap(0xF0000, 0x10000); /* Can't fail */
p = bios_signature(bios);
if (!p) {
iounmap(bios);
return -ENODEV;
}
/* just use the first address */
p += 8;
i2c_addr = readb(p + 3) >> 1;
for ( ; (devno = readb(p)) & 0x7f; p += 4) {
unsigned char method, slave, chip;
method = readb(p + 1);
chip = readb(p + 2);
slave = readb(p + 3) >> 1;
if (slave != i2c_addr) {
pr_notice(APANEL ": only one SMBus slave "
"address supported, skiping device...\n");
continue;
}
/* translate alternative device numbers */
switch (devno) {
case 6:
devno = APANEL_DEV_APPBTN;
break;
case 7:
devno = APANEL_DEV_LED;
break;
}
if (devno >= APANEL_DEV_MAX)
pr_notice(APANEL ": unknown device %u found\n", devno);
else if (device_chip[devno] != CHIP_NONE)
pr_warning(APANEL ": duplicate entry for devno %u\n", devno);
else if (method != 1 && method != 2 && method != 4) {
pr_notice(APANEL ": unknown method %u for devno %u\n",
method, devno);
} else {
device_chip[devno] = (enum apanel_chip) chip;
++found;
}
}
iounmap(bios);
if (found == 0) {
pr_info(APANEL ": no input devices reported by BIOS\n");
return -EIO;
}
return i2c_add_driver(&apanel_driver);
}
module_init(apanel_init);
static void __exit apanel_cleanup(void)
{
i2c_del_driver(&apanel_driver);
}
module_exit(apanel_cleanup);
MODULE_AUTHOR("Stephen Hemminger <shemminger@linux-foundation.org>");
MODULE_DESCRIPTION(APANEL_NAME " driver");
MODULE_LICENSE("GPL");
MODULE_VERSION(APANEL_VERSION);
MODULE_ALIAS("dmi:*:svnFUJITSU:pnLifeBook*:pvr*:rvnFUJITSU:*");
MODULE_ALIAS("dmi:*:svnFUJITSU:pnLifebook*:pvr*:rvnFUJITSU:*");

255
drivers/input/misc/arizona-haptics.c Normal file
View File

@@ -0,0 +1,255 @@
/*
* Arizona haptics driver
*
* Copyright 2012 Wolfson Microelectronics plc
*
* Author: Mark Brown <broonie@opensource.wolfsonmicro.com>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*/
#include <linux/module.h>
#include <linux/platform_device.h>
#include <linux/input.h>
#include <linux/slab.h>
#include <sound/soc.h>
#include <sound/soc-dapm.h>
#include <linux/mfd/arizona/core.h>
#include <linux/mfd/arizona/pdata.h>
#include <linux/mfd/arizona/registers.h>
struct arizona_haptics {
struct arizona *arizona;
struct input_dev *input_dev;
struct work_struct work;
struct mutex mutex;
u8 intensity;
};
static void arizona_haptics_work(struct work_struct *work)
{
struct arizona_haptics *haptics = container_of(work,
struct arizona_haptics,
work);
struct arizona *arizona = haptics->arizona;
struct mutex *dapm_mutex = &arizona->dapm->card->dapm_mutex;
int ret;
if (!haptics->arizona->dapm) {
dev_err(arizona->dev, "No DAPM context\n");
return;
}
if (haptics->intensity) {
ret = regmap_update_bits(arizona->regmap,
ARIZONA_HAPTICS_PHASE_2_INTENSITY,
ARIZONA_PHASE2_INTENSITY_MASK,
haptics->intensity);
if (ret != 0) {
dev_err(arizona->dev, "Failed to set intensity: %d\n",
ret);
return;
}
/* This enable sequence will be a noop if already enabled */
ret = regmap_update_bits(arizona->regmap,
ARIZONA_HAPTICS_CONTROL_1,
ARIZONA_HAP_CTRL_MASK,
1 << ARIZONA_HAP_CTRL_SHIFT);
if (ret != 0) {
dev_err(arizona->dev, "Failed to start haptics: %d\n",
ret);
return;
}
mutex_lock_nested(dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME);
ret = snd_soc_dapm_enable_pin(arizona->dapm, "HAPTICS");
if (ret != 0) {
dev_err(arizona->dev, "Failed to start HAPTICS: %d\n",
ret);
mutex_unlock(dapm_mutex);
return;
}
ret = snd_soc_dapm_sync(arizona->dapm);
if (ret != 0) {
dev_err(arizona->dev, "Failed to sync DAPM: %d\n",
ret);
mutex_unlock(dapm_mutex);
return;
}
mutex_unlock(dapm_mutex);
} else {
/* This disable sequence will be a noop if already enabled */
mutex_lock_nested(dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME);
ret = snd_soc_dapm_disable_pin(arizona->dapm, "HAPTICS");
if (ret != 0) {
dev_err(arizona->dev, "Failed to disable HAPTICS: %d\n",
ret);
mutex_unlock(dapm_mutex);
return;
}
ret = snd_soc_dapm_sync(arizona->dapm);
if (ret != 0) {
dev_err(arizona->dev, "Failed to sync DAPM: %d\n",
ret);
mutex_unlock(dapm_mutex);
return;
}
mutex_unlock(dapm_mutex);
ret = regmap_update_bits(arizona->regmap,
ARIZONA_HAPTICS_CONTROL_1,
ARIZONA_HAP_CTRL_MASK,
1 << ARIZONA_HAP_CTRL_SHIFT);
if (ret != 0) {
dev_err(arizona->dev, "Failed to stop haptics: %d\n",
ret);
return;
}
}
}
static int arizona_haptics_play(struct input_dev *input, void *data,
struct ff_effect *effect)
{
struct arizona_haptics *haptics = input_get_drvdata(input);
struct arizona *arizona = haptics->arizona;
if (!arizona->dapm) {
dev_err(arizona->dev, "No DAPM context\n");
return -EBUSY;
}
if (effect->u.rumble.strong_magnitude) {
/* Scale the magnitude into the range the device supports */
if (arizona->pdata.hap_act) {
haptics->intensity =
effect->u.rumble.strong_magnitude >> 9;
if (effect->direction < 0x8000)
haptics->intensity += 0x7f;
} else {
haptics->intensity =
effect->u.rumble.strong_magnitude >> 8;
}
} else {
haptics->intensity = 0;
}
schedule_work(&haptics->work);
return 0;
}
static void arizona_haptics_close(struct input_dev *input)
{
struct arizona_haptics *haptics = input_get_drvdata(input);
struct mutex *dapm_mutex = &haptics->arizona->dapm->card->dapm_mutex;
cancel_work_sync(&haptics->work);
mutex_lock_nested(dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME);
if (haptics->arizona->dapm)
snd_soc_dapm_disable_pin(haptics->arizona->dapm, "HAPTICS");
mutex_unlock(dapm_mutex);
}
static int arizona_haptics_probe(struct platform_device *pdev)
{
struct arizona *arizona = dev_get_drvdata(pdev->dev.parent);
struct arizona_haptics *haptics;
int ret;
haptics = devm_kzalloc(&pdev->dev, sizeof(*haptics), GFP_KERNEL);
if (!haptics)
return -ENOMEM;
haptics->arizona = arizona;
ret = regmap_update_bits(arizona->regmap, ARIZONA_HAPTICS_CONTROL_1,
ARIZONA_HAP_ACT, arizona->pdata.hap_act);
if (ret != 0) {
dev_err(arizona->dev, "Failed to set haptics actuator: %d\n",
ret);
return ret;
}
INIT_WORK(&haptics->work, arizona_haptics_work);
haptics->input_dev = input_allocate_device();
if (haptics->input_dev == NULL) {
dev_err(arizona->dev, "Failed to allocate input device\n");
return -ENOMEM;
}
input_set_drvdata(haptics->input_dev, haptics);
haptics->input_dev->name = "arizona:haptics";
haptics->input_dev->dev.parent = pdev->dev.parent;
haptics->input_dev->close = arizona_haptics_close;
__set_bit(FF_RUMBLE, haptics->input_dev->ffbit);
ret = input_ff_create_memless(haptics->input_dev, NULL,
arizona_haptics_play);
if (ret < 0) {
dev_err(arizona->dev, "input_ff_create_memless() failed: %d\n",
ret);
goto err_ialloc;
}
ret = input_register_device(haptics->input_dev);
if (ret < 0) {
dev_err(arizona->dev, "couldn't register input device: %d\n",
ret);
goto err_iff;
}
platform_set_drvdata(pdev, haptics);
return 0;
err_iff:
if (haptics->input_dev)
input_ff_destroy(haptics->input_dev);
err_ialloc:
input_free_device(haptics->input_dev);
return ret;
}
static int arizona_haptics_remove(struct platform_device *pdev)
{
struct arizona_haptics *haptics = platform_get_drvdata(pdev);
input_unregister_device(haptics->input_dev);
return 0;
}
static struct platform_driver arizona_haptics_driver = {
.probe = arizona_haptics_probe,
.remove = arizona_haptics_remove,
.driver = {
.name = "arizona-haptics",
.owner = THIS_MODULE,
},
};
module_platform_driver(arizona_haptics_driver);
MODULE_ALIAS("platform:arizona-haptics");
MODULE_DESCRIPTION("Arizona haptics driver");
MODULE_LICENSE("GPL");
MODULE_AUTHOR("Mark Brown <broonie@opensource.wolfsonmicro.com>");

1016
drivers/input/misc/ati_remote2.c Normal file
View File

File diff suppressed because it is too large Load Diff

159
drivers/input/misc/atlas_btns.c Normal file
View File

@@ -0,0 +1,159 @@
/*
* atlas_btns.c - Atlas Wallmount Touchscreen ACPI Extras
*
* Copyright (C) 2006 Jaya Kumar
* Based on Toshiba ACPI by John Belmonte and ASUS ACPI
* This work was sponsored by CIS(M) Sdn Bhd.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*
*/
#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/init.h>
#include <linux/input.h>
#include <linux/types.h>
#include <asm/uaccess.h>
#include <acpi/acpi_drivers.h>
#define ACPI_ATLAS_NAME "Atlas ACPI"
#define ACPI_ATLAS_CLASS "Atlas"
static unsigned short atlas_keymap[16];
static struct input_dev *input_dev;
/* button handling code */
static acpi_status acpi_atlas_button_setup(acpi_handle region_handle,
u32 function, void *handler_context, void **return_context)
{
*return_context =
(function != ACPI_REGION_DEACTIVATE) ? handler_context : NULL;
return AE_OK;
}
static acpi_status acpi_atlas_button_handler(u32 function,
acpi_physical_address address,
u32 bit_width, u64 *value,
void *handler_context, void *region_context)
{
acpi_status status;
if (function == ACPI_WRITE) {
int code = address & 0x0f;
int key_down = !(address & 0x10);
input_event(input_dev, EV_MSC, MSC_SCAN, code);
input_report_key(input_dev, atlas_keymap[code], key_down);
input_sync(input_dev);
status = AE_OK;
} else {
pr_warn("shrugged on unexpected function: function=%x,address=%lx,value=%x\n",
function, (unsigned long)address, (u32)*value);
status = AE_BAD_PARAMETER;
}
return status;
}
static int atlas_acpi_button_add(struct acpi_device *device)
{
acpi_status status;
int i;
int err;
input_dev = input_allocate_device();
if (!input_dev) {
pr_err("unable to allocate input device\n");
return -ENOMEM;
}
input_dev->name = "Atlas ACPI button driver";
input_dev->phys = "ASIM0000/atlas/input0";
input_dev->id.bustype = BUS_HOST;
input_dev->keycode = atlas_keymap;
input_dev->keycodesize = sizeof(unsigned short);
input_dev->keycodemax = ARRAY_SIZE(atlas_keymap);
input_set_capability(input_dev, EV_MSC, MSC_SCAN);
__set_bit(EV_KEY, input_dev->evbit);
for (i = 0; i < ARRAY_SIZE(atlas_keymap); i++) {
if (i < 9) {
atlas_keymap[i] = KEY_F1 + i;
__set_bit(KEY_F1 + i, input_dev->keybit);
} else
atlas_keymap[i] = KEY_RESERVED;
}
err = input_register_device(input_dev);
if (err) {
pr_err("couldn't register input device\n");
input_free_device(input_dev);
return err;
}
/* hookup button handler */
status = acpi_install_address_space_handler(device->handle,
0x81, &acpi_atlas_button_handler,
&acpi_atlas_button_setup, device);
if (ACPI_FAILURE(status)) {
pr_err("error installing addr spc handler\n");
input_unregister_device(input_dev);
err = -EINVAL;
}
return err;
}
static int atlas_acpi_button_remove(struct acpi_device *device)
{
acpi_status status;
status = acpi_remove_address_space_handler(device->handle,
0x81, &acpi_atlas_button_handler);
if (ACPI_FAILURE(status))
pr_err("error removing addr spc handler\n");
input_unregister_device(input_dev);
return 0;
}
static const struct acpi_device_id atlas_device_ids[] = {
{"ASIM0000", 0},
{"", 0},
};
MODULE_DEVICE_TABLE(acpi, atlas_device_ids);
static struct acpi_driver atlas_acpi_driver = {
.name = ACPI_ATLAS_NAME,
.class = ACPI_ATLAS_CLASS,
.owner = THIS_MODULE,
.ids = atlas_device_ids,
.ops = {
.add = atlas_acpi_button_add,
.remove = atlas_acpi_button_remove,
},
};
module_acpi_driver(atlas_acpi_driver);
MODULE_AUTHOR("Jaya Kumar");
MODULE_LICENSE("GPL");
MODULE_DESCRIPTION("Atlas button driver");

272
drivers/input/misc/bfin_rotary.c Normal file
View File

@@ -0,0 +1,272 @@
/*
* Rotary counter driver for Analog Devices Blackfin Processors
*
* Copyright 2008-2009 Analog Devices Inc.
* Licensed under the GPL-2 or later.
*/
#include <linux/module.h>
#include <linux/init.h>
#include <linux/interrupt.h>
#include <linux/irq.h>
#include <linux/pm.h>
#include <linux/platform_device.h>
#include <linux/input.h>
#include <linux/slab.h>
#include <asm/portmux.h>
#include <asm/bfin_rotary.h>
static const u16 per_cnt[] = {
P_CNT_CUD,
P_CNT_CDG,
P_CNT_CZM,
0
};
struct bfin_rot {
struct input_dev *input;
int irq;
unsigned int up_key;
unsigned int down_key;
unsigned int button_key;
unsigned int rel_code;
unsigned short cnt_config;
unsigned short cnt_imask;
unsigned short cnt_debounce;
};
static void report_key_event(struct input_dev *input, int keycode)
{
/* simulate a press-n-release */
input_report_key(input, keycode, 1);
input_sync(input);
input_report_key(input, keycode, 0);
input_sync(input);
}
static void report_rotary_event(struct bfin_rot *rotary, int delta)
{
struct input_dev *input = rotary->input;
if (rotary->up_key) {
report_key_event(input,
delta > 0 ? rotary->up_key : rotary->down_key);
} else {
input_report_rel(input, rotary->rel_code, delta);
input_sync(input);
}
}
static irqreturn_t bfin_rotary_isr(int irq, void *dev_id)
{
struct platform_device *pdev = dev_id;
struct bfin_rot *rotary = platform_get_drvdata(pdev);
int delta;
switch (bfin_read_CNT_STATUS()) {
case ICII:
break;
case UCII:
case DCII:
delta = bfin_read_CNT_COUNTER();
if (delta)
report_rotary_event(rotary, delta);
break;
case CZMII:
report_key_event(rotary->input, rotary->button_key);
break;
default:
break;
}
bfin_write_CNT_COMMAND(W1LCNT_ZERO); /* Clear COUNTER */
bfin_write_CNT_STATUS(-1); /* Clear STATUS */
return IRQ_HANDLED;
}
static int bfin_rotary_probe(struct platform_device *pdev)
{
struct bfin_rotary_platform_data *pdata = pdev->dev.platform_data;
struct bfin_rot *rotary;
struct input_dev *input;
int error;
/* Basic validation */
if ((pdata->rotary_up_key && !pdata->rotary_down_key) ||
(!pdata->rotary_up_key && pdata->rotary_down_key)) {
return -EINVAL;
}
error = peripheral_request_list(per_cnt, dev_name(&pdev->dev));
if (error) {
dev_err(&pdev->dev, "requesting peripherals failed\n");
return error;
}
rotary = kzalloc(sizeof(struct bfin_rot), GFP_KERNEL);
input = input_allocate_device();
if (!rotary || !input) {
error = -ENOMEM;
goto out1;
}
rotary->input = input;
rotary->up_key = pdata->rotary_up_key;
rotary->down_key = pdata->rotary_down_key;
rotary->button_key = pdata->rotary_button_key;
rotary->rel_code = pdata->rotary_rel_code;
error = rotary->irq = platform_get_irq(pdev, 0);
if (error < 0)
goto out1;
input->name = pdev->name;
input->phys = "bfin-rotary/input0";
input->dev.parent = &pdev->dev;
input_set_drvdata(input, rotary);
input->id.bustype = BUS_HOST;
input->id.vendor = 0x0001;
input->id.product = 0x0001;
input->id.version = 0x0100;
if (rotary->up_key) {
__set_bit(EV_KEY, input->evbit);
__set_bit(rotary->up_key, input->keybit);
__set_bit(rotary->down_key, input->keybit);
} else {
__set_bit(EV_REL, input->evbit);
__set_bit(rotary->rel_code, input->relbit);
}
if (rotary->button_key) {
__set_bit(EV_KEY, input->evbit);
__set_bit(rotary->button_key, input->keybit);
}
error = request_irq(rotary->irq, bfin_rotary_isr,
0, dev_name(&pdev->dev), pdev);
if (error) {
dev_err(&pdev->dev,
"unable to claim irq %d; error %d\n",
rotary->irq, error);
goto out1;
}
error = input_register_device(input);
if (error) {
dev_err(&pdev->dev,
"unable to register input device (%d)\n", error);
goto out2;
}
if (pdata->rotary_button_key)
bfin_write_CNT_IMASK(CZMIE);
if (pdata->mode & ROT_DEBE)
bfin_write_CNT_DEBOUNCE(pdata->debounce & DPRESCALE);
if (pdata->mode)
bfin_write_CNT_CONFIG(bfin_read_CNT_CONFIG() |
(pdata->mode & ~CNTE));
bfin_write_CNT_IMASK(bfin_read_CNT_IMASK() | UCIE | DCIE);
bfin_write_CNT_CONFIG(bfin_read_CNT_CONFIG() | CNTE);
platform_set_drvdata(pdev, rotary);
device_init_wakeup(&pdev->dev, 1);
return 0;
out2:
free_irq(rotary->irq, pdev);
out1:
input_free_device(input);
kfree(rotary);
peripheral_free_list(per_cnt);
return error;
}
static int bfin_rotary_remove(struct platform_device *pdev)
{
struct bfin_rot *rotary = platform_get_drvdata(pdev);
bfin_write_CNT_CONFIG(0);
bfin_write_CNT_IMASK(0);
free_irq(rotary->irq, pdev);
input_unregister_device(rotary->input);
peripheral_free_list(per_cnt);
kfree(rotary);
platform_set_drvdata(pdev, NULL);
return 0;
}
#ifdef CONFIG_PM
static int bfin_rotary_suspend(struct device *dev)
{
struct platform_device *pdev = to_platform_device(dev);
struct bfin_rot *rotary = platform_get_drvdata(pdev);
rotary->cnt_config = bfin_read_CNT_CONFIG();
rotary->cnt_imask = bfin_read_CNT_IMASK();
rotary->cnt_debounce = bfin_read_CNT_DEBOUNCE();
if (device_may_wakeup(&pdev->dev))
enable_irq_wake(rotary->irq);
return 0;
}
static int bfin_rotary_resume(struct device *dev)
{
struct platform_device *pdev = to_platform_device(dev);
struct bfin_rot *rotary = platform_get_drvdata(pdev);
bfin_write_CNT_DEBOUNCE(rotary->cnt_debounce);
bfin_write_CNT_IMASK(rotary->cnt_imask);
bfin_write_CNT_CONFIG(rotary->cnt_config & ~CNTE);
if (device_may_wakeup(&pdev->dev))
disable_irq_wake(rotary->irq);
if (rotary->cnt_config & CNTE)
bfin_write_CNT_CONFIG(rotary->cnt_config);
return 0;
}
static const struct dev_pm_ops bfin_rotary_pm_ops = {
.suspend = bfin_rotary_suspend,
.resume = bfin_rotary_resume,
};
#endif
static struct platform_driver bfin_rotary_device_driver = {
.probe = bfin_rotary_probe,
.remove = bfin_rotary_remove,
.driver = {
.name = "bfin-rotary",
.owner = THIS_MODULE,
#ifdef CONFIG_PM
.pm = &bfin_rotary_pm_ops,
#endif
},
};
module_platform_driver(bfin_rotary_device_driver);
MODULE_LICENSE("GPL");
MODULE_AUTHOR("Michael Hennerich <hennerich@blackfin.uclinux.org>");
MODULE_DESCRIPTION("Rotary Counter driver for Blackfin Processors");
MODULE_ALIAS("platform:bfin-rotary");

668
drivers/input/misc/bma150.c Normal file
View File

@@ -0,0 +1,668 @@
/*
* Copyright (c) 2011 Bosch Sensortec GmbH
* Copyright (c) 2011 Unixphere
*
* This driver adds support for Bosch Sensortec's digital acceleration
* sensors BMA150 and SMB380.
* The SMB380 is fully compatible with BMA150 and only differs in packaging.
*
* The datasheet for the BMA150 chip can be found here:
* http://www.bosch-sensortec.com/content/language1/downloads/BST-BMA150-DS000-07.pdf
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/i2c.h>
#include <linux/input.h>
#include <linux/input-polldev.h>
#include <linux/interrupt.h>
#include <linux/delay.h>
#include <linux/slab.h>
#include <linux/pm.h>
#include <linux/pm_runtime.h>
#include <linux/bma150.h>
#define ABSMAX_ACC_VAL 0x01FF
#define ABSMIN_ACC_VAL -(ABSMAX_ACC_VAL)
/* Each axis is represented by a 2-byte data word */
#define BMA150_XYZ_DATA_SIZE 6
/* Input poll interval in milliseconds */
#define BMA150_POLL_INTERVAL 10
#define BMA150_POLL_MAX 200
#define BMA150_POLL_MIN 0
#define BMA150_MODE_NORMAL 0
#define BMA150_MODE_SLEEP 2
#define BMA150_MODE_WAKE_UP 3
/* Data register addresses */
#define BMA150_DATA_0_REG 0x00
#define BMA150_DATA_1_REG 0x01
#define BMA150_DATA_2_REG 0x02
/* Control register addresses */
#define BMA150_CTRL_0_REG 0x0A
#define BMA150_CTRL_1_REG 0x0B
#define BMA150_CTRL_2_REG 0x14
#define BMA150_CTRL_3_REG 0x15
/* Configuration/Setting register addresses */
#define BMA150_CFG_0_REG 0x0C
#define BMA150_CFG_1_REG 0x0D
#define BMA150_CFG_2_REG 0x0E
#define BMA150_CFG_3_REG 0x0F
#define BMA150_CFG_4_REG 0x10
#define BMA150_CFG_5_REG 0x11
#define BMA150_CHIP_ID 2
#define BMA150_CHIP_ID_REG BMA150_DATA_0_REG
#define BMA150_ACC_X_LSB_REG BMA150_DATA_2_REG
#define BMA150_SLEEP_POS 0
#define BMA150_SLEEP_MSK 0x01
#define BMA150_SLEEP_REG BMA150_CTRL_0_REG
#define BMA150_BANDWIDTH_POS 0
#define BMA150_BANDWIDTH_MSK 0x07
#define BMA150_BANDWIDTH_REG BMA150_CTRL_2_REG
#define BMA150_RANGE_POS 3
#define BMA150_RANGE_MSK 0x18
#define BMA150_RANGE_REG BMA150_CTRL_2_REG
#define BMA150_WAKE_UP_POS 0
#define BMA150_WAKE_UP_MSK 0x01
#define BMA150_WAKE_UP_REG BMA150_CTRL_3_REG
#define BMA150_SW_RES_POS 1
#define BMA150_SW_RES_MSK 0x02
#define BMA150_SW_RES_REG BMA150_CTRL_0_REG
/* Any-motion interrupt register fields */
#define BMA150_ANY_MOTION_EN_POS 6
#define BMA150_ANY_MOTION_EN_MSK 0x40
#define BMA150_ANY_MOTION_EN_REG BMA150_CTRL_1_REG
#define BMA150_ANY_MOTION_DUR_POS 6
#define BMA150_ANY_MOTION_DUR_MSK 0xC0
#define BMA150_ANY_MOTION_DUR_REG BMA150_CFG_5_REG
#define BMA150_ANY_MOTION_THRES_REG BMA150_CFG_4_REG
/* Advanced interrupt register fields */
#define BMA150_ADV_INT_EN_POS 6
#define BMA150_ADV_INT_EN_MSK 0x40
#define BMA150_ADV_INT_EN_REG BMA150_CTRL_3_REG
/* High-G interrupt register fields */
#define BMA150_HIGH_G_EN_POS 1
#define BMA150_HIGH_G_EN_MSK 0x02
#define BMA150_HIGH_G_EN_REG BMA150_CTRL_1_REG
#define BMA150_HIGH_G_HYST_POS 3
#define BMA150_HIGH_G_HYST_MSK 0x38
#define BMA150_HIGH_G_HYST_REG BMA150_CFG_5_REG
#define BMA150_HIGH_G_DUR_REG BMA150_CFG_3_REG
#define BMA150_HIGH_G_THRES_REG BMA150_CFG_2_REG
/* Low-G interrupt register fields */
#define BMA150_LOW_G_EN_POS 0
#define BMA150_LOW_G_EN_MSK 0x01
#define BMA150_LOW_G_EN_REG BMA150_CTRL_1_REG
#define BMA150_LOW_G_HYST_POS 0
#define BMA150_LOW_G_HYST_MSK 0x07
#define BMA150_LOW_G_HYST_REG BMA150_CFG_5_REG
#define BMA150_LOW_G_DUR_REG BMA150_CFG_1_REG
#define BMA150_LOW_G_THRES_REG BMA150_CFG_0_REG
struct bma150_data {
struct i2c_client *client;
struct input_polled_dev *input_polled;
struct input_dev *input;
u8 mode;
};
/*
* The settings for the given range, bandwidth and interrupt features
* are stated and verified by Bosch Sensortec where they are configured
* to provide a generic sensitivity performance.
*/
static struct bma150_cfg default_cfg = {
.any_motion_int = 1,
.hg_int = 1,
.lg_int = 1,
.any_motion_dur = 0,
.any_motion_thres = 0,
.hg_hyst = 0,
.hg_dur = 150,
.hg_thres = 160,
.lg_hyst = 0,
.lg_dur = 150,
.lg_thres = 20,
.range = BMA150_RANGE_2G,
.bandwidth = BMA150_BW_50HZ
};
static int bma150_write_byte(struct i2c_client *client, u8 reg, u8 val)
{
s32 ret;
/* As per specification, disable irq in between register writes */
if (client->irq)
disable_irq_nosync(client->irq);
ret = i2c_smbus_write_byte_data(client, reg, val);
if (client->irq)
enable_irq(client->irq);
return ret;
}
static int bma150_set_reg_bits(struct i2c_client *client,
int val, int shift, u8 mask, u8 reg)
{
int data;
data = i2c_smbus_read_byte_data(client, reg);
if (data < 0)
return data;
data = (data & ~mask) | ((val << shift) & mask);
return bma150_write_byte(client, reg, data);
}
static int bma150_set_mode(struct bma150_data *bma150, u8 mode)
{
int error;
error = bma150_set_reg_bits(bma150->client, mode, BMA150_WAKE_UP_POS,
BMA150_WAKE_UP_MSK, BMA150_WAKE_UP_REG);
if (error)
return error;
error = bma150_set_reg_bits(bma150->client, mode, BMA150_SLEEP_POS,
BMA150_SLEEP_MSK, BMA150_SLEEP_REG);
if (error)
return error;
if (mode == BMA150_MODE_NORMAL)
msleep(2);
bma150->mode = mode;
return 0;
}
static int bma150_soft_reset(struct bma150_data *bma150)
{
int error;
error = bma150_set_reg_bits(bma150->client, 1, BMA150_SW_RES_POS,
BMA150_SW_RES_MSK, BMA150_SW_RES_REG);
if (error)
return error;
msleep(2);
return 0;
}
static int bma150_set_range(struct bma150_data *bma150, u8 range)
{
return bma150_set_reg_bits(bma150->client, range, BMA150_RANGE_POS,
BMA150_RANGE_MSK, BMA150_RANGE_REG);
}
static int bma150_set_bandwidth(struct bma150_data *bma150, u8 bw)
{
return bma150_set_reg_bits(bma150->client, bw, BMA150_BANDWIDTH_POS,
BMA150_BANDWIDTH_MSK, BMA150_BANDWIDTH_REG);
}
static int bma150_set_low_g_interrupt(struct bma150_data *bma150,
u8 enable, u8 hyst, u8 dur, u8 thres)
{
int error;
error = bma150_set_reg_bits(bma150->client, hyst,
BMA150_LOW_G_HYST_POS, BMA150_LOW_G_HYST_MSK,
BMA150_LOW_G_HYST_REG);
if (error)
return error;
error = bma150_write_byte(bma150->client, BMA150_LOW_G_DUR_REG, dur);
if (error)
return error;
error = bma150_write_byte(bma150->client, BMA150_LOW_G_THRES_REG, thres);
if (error)
return error;
return bma150_set_reg_bits(bma150->client, !!enable,
BMA150_LOW_G_EN_POS, BMA150_LOW_G_EN_MSK,
BMA150_LOW_G_EN_REG);
}
static int bma150_set_high_g_interrupt(struct bma150_data *bma150,
u8 enable, u8 hyst, u8 dur, u8 thres)
{
int error;
error = bma150_set_reg_bits(bma150->client, hyst,
BMA150_HIGH_G_HYST_POS, BMA150_HIGH_G_HYST_MSK,
BMA150_HIGH_G_HYST_REG);
if (error)
return error;
error = bma150_write_byte(bma150->client,
BMA150_HIGH_G_DUR_REG, dur);
if (error)
return error;
error = bma150_write_byte(bma150->client,
BMA150_HIGH_G_THRES_REG, thres);
if (error)
return error;
return bma150_set_reg_bits(bma150->client, !!enable,
BMA150_HIGH_G_EN_POS, BMA150_HIGH_G_EN_MSK,
BMA150_HIGH_G_EN_REG);
}
static int bma150_set_any_motion_interrupt(struct bma150_data *bma150,
u8 enable, u8 dur, u8 thres)
{
int error;
error = bma150_set_reg_bits(bma150->client, dur,
BMA150_ANY_MOTION_DUR_POS,
BMA150_ANY_MOTION_DUR_MSK,
BMA150_ANY_MOTION_DUR_REG);
if (error)
return error;
error = bma150_write_byte(bma150->client,
BMA150_ANY_MOTION_THRES_REG, thres);
if (error)
return error;
error = bma150_set_reg_bits(bma150->client, !!enable,
BMA150_ADV_INT_EN_POS, BMA150_ADV_INT_EN_MSK,
BMA150_ADV_INT_EN_REG);
if (error)
return error;
return bma150_set_reg_bits(bma150->client, !!enable,
BMA150_ANY_MOTION_EN_POS,
BMA150_ANY_MOTION_EN_MSK,
BMA150_ANY_MOTION_EN_REG);
}
static void bma150_report_xyz(struct bma150_data *bma150)
{
u8 data[BMA150_XYZ_DATA_SIZE];
s16 x, y, z;
s32 ret;
ret = i2c_smbus_read_i2c_block_data(bma150->client,
BMA150_ACC_X_LSB_REG, BMA150_XYZ_DATA_SIZE, data);
if (ret != BMA150_XYZ_DATA_SIZE)
return;
x = ((0xc0 & data[0]) >> 6) | (data[1] << 2);
y = ((0xc0 & data[2]) >> 6) | (data[3] << 2);
z = ((0xc0 & data[4]) >> 6) | (data[5] << 2);
/* sign extension */
x = (s16) (x << 6) >> 6;
y = (s16) (y << 6) >> 6;
z = (s16) (z << 6) >> 6;
input_report_abs(bma150->input, ABS_X, x);
input_report_abs(bma150->input, ABS_Y, y);
input_report_abs(bma150->input, ABS_Z, z);
input_sync(bma150->input);
}
static irqreturn_t bma150_irq_thread(int irq, void *dev)
{
bma150_report_xyz(dev);
return IRQ_HANDLED;
}
static void bma150_poll(struct input_polled_dev *dev)
{
bma150_report_xyz(dev->private);
}
static int bma150_open(struct bma150_data *bma150)
{
int error;
error = pm_runtime_get_sync(&bma150->client->dev);
if (error < 0 && error != -ENOSYS)
return error;
/*
* See if runtime PM woke up the device. If runtime PM
* is disabled we need to do it ourselves.
*/
if (bma150->mode != BMA150_MODE_NORMAL) {
error = bma150_set_mode(bma150, BMA150_MODE_NORMAL);
if (error)
return error;
}
return 0;
}
static void bma150_close(struct bma150_data *bma150)
{
pm_runtime_put_sync(&bma150->client->dev);
if (bma150->mode != BMA150_MODE_SLEEP)
bma150_set_mode(bma150, BMA150_MODE_SLEEP);
}
static int bma150_irq_open(struct input_dev *input)
{
struct bma150_data *bma150 = input_get_drvdata(input);
return bma150_open(bma150);
}
static void bma150_irq_close(struct input_dev *input)
{
struct bma150_data *bma150 = input_get_drvdata(input);
bma150_close(bma150);
}
static void bma150_poll_open(struct input_polled_dev *ipoll_dev)
{
struct bma150_data *bma150 = ipoll_dev->private;
bma150_open(bma150);
}
static void bma150_poll_close(struct input_polled_dev *ipoll_dev)
{
struct bma150_data *bma150 = ipoll_dev->private;
bma150_close(bma150);
}
static int bma150_initialize(struct bma150_data *bma150,
const struct bma150_cfg *cfg)
{
int error;
error = bma150_soft_reset(bma150);
if (error)
return error;
error = bma150_set_bandwidth(bma150, cfg->bandwidth);
if (error)
return error;
error = bma150_set_range(bma150, cfg->range);
if (error)
return error;
if (bma150->client->irq) {
error = bma150_set_any_motion_interrupt(bma150,
cfg->any_motion_int,
cfg->any_motion_dur,
cfg->any_motion_thres);
if (error)
return error;
error = bma150_set_high_g_interrupt(bma150,
cfg->hg_int, cfg->hg_hyst,
cfg->hg_dur, cfg->hg_thres);
if (error)
return error;
error = bma150_set_low_g_interrupt(bma150,
cfg->lg_int, cfg->lg_hyst,
cfg->lg_dur, cfg->lg_thres);
if (error)
return error;
}
return bma150_set_mode(bma150, BMA150_MODE_SLEEP);
}
static void bma150_init_input_device(struct bma150_data *bma150,
struct input_dev *idev)
{
idev->name = BMA150_DRIVER;
idev->phys = BMA150_DRIVER "/input0";
idev->id.bustype = BUS_I2C;
idev->dev.parent = &bma150->client->dev;
idev->evbit[0] = BIT_MASK(EV_ABS);
input_set_abs_params(idev, ABS_X, ABSMIN_ACC_VAL, ABSMAX_ACC_VAL, 0, 0);
input_set_abs_params(idev, ABS_Y, ABSMIN_ACC_VAL, ABSMAX_ACC_VAL, 0, 0);
input_set_abs_params(idev, ABS_Z, ABSMIN_ACC_VAL, ABSMAX_ACC_VAL, 0, 0);
}
static int bma150_register_input_device(struct bma150_data *bma150)
{
struct input_dev *idev;
int error;
idev = input_allocate_device();
if (!idev)
return -ENOMEM;
bma150_init_input_device(bma150, idev);
idev->open = bma150_irq_open;
idev->close = bma150_irq_close;
input_set_drvdata(idev, bma150);
error = input_register_device(idev);
if (error) {
input_free_device(idev);
return error;
}
bma150->input = idev;
return 0;
}
static int bma150_register_polled_device(struct bma150_data *bma150)
{
struct input_polled_dev *ipoll_dev;
int error;
ipoll_dev = input_allocate_polled_device();
if (!ipoll_dev)
return -ENOMEM;
ipoll_dev->private = bma150;
ipoll_dev->open = bma150_poll_open;
ipoll_dev->close = bma150_poll_close;
ipoll_dev->poll = bma150_poll;
ipoll_dev->poll_interval = BMA150_POLL_INTERVAL;
ipoll_dev->poll_interval_min = BMA150_POLL_MIN;
ipoll_dev->poll_interval_max = BMA150_POLL_MAX;
bma150_init_input_device(bma150, ipoll_dev->input);
error = input_register_polled_device(ipoll_dev);
if (error) {
input_free_polled_device(ipoll_dev);
return error;
}
bma150->input_polled = ipoll_dev;
bma150->input = ipoll_dev->input;
return 0;
}
static int bma150_probe(struct i2c_client *client,
const struct i2c_device_id *id)
{
const struct bma150_platform_data *pdata = client->dev.platform_data;
const struct bma150_cfg *cfg;
struct bma150_data *bma150;
int chip_id;
int error;
if (!i2c_check_functionality(client->adapter, I2C_FUNC_I2C)) {
dev_err(&client->dev, "i2c_check_functionality error\n");
return -EIO;
}
chip_id = i2c_smbus_read_byte_data(client, BMA150_CHIP_ID_REG);
if (chip_id != BMA150_CHIP_ID) {
dev_err(&client->dev, "BMA150 chip id error: %d\n", chip_id);
return -EINVAL;
}
bma150 = kzalloc(sizeof(struct bma150_data), GFP_KERNEL);
if (!bma150)
return -ENOMEM;
bma150->client = client;
if (pdata) {
if (pdata->irq_gpio_cfg) {
error = pdata->irq_gpio_cfg();
if (error) {
dev_err(&client->dev,
"IRQ GPIO conf. error %d, error %d\n",
client->irq, error);
goto err_free_mem;
}
}
cfg = &pdata->cfg;
} else {
cfg = &default_cfg;
}
error = bma150_initialize(bma150, cfg);
if (error)
goto err_free_mem;
if (client->irq > 0) {
error = bma150_register_input_device(bma150);
if (error)
goto err_free_mem;
error = request_threaded_irq(client->irq,
NULL, bma150_irq_thread,
IRQF_TRIGGER_RISING | IRQF_ONESHOT,
BMA150_DRIVER, bma150);
if (error) {
dev_err(&client->dev,
"irq request failed %d, error %d\n",
client->irq, error);
input_unregister_device(bma150->input);
goto err_free_mem;
}
} else {
error = bma150_register_polled_device(bma150);
if (error)
goto err_free_mem;
}
i2c_set_clientdata(client, bma150);
pm_runtime_enable(&client->dev);
return 0;
err_free_mem:
kfree(bma150);
return error;
}
static int bma150_remove(struct i2c_client *client)
{
struct bma150_data *bma150 = i2c_get_clientdata(client);
pm_runtime_disable(&client->dev);
if (client->irq > 0) {
free_irq(client->irq, bma150);
input_unregister_device(bma150->input);
} else {
input_unregister_polled_device(bma150->input_polled);
input_free_polled_device(bma150->input_polled);
}
kfree(bma150);
return 0;
}
#ifdef CONFIG_PM
static int bma150_suspend(struct device *dev)
{
struct i2c_client *client = to_i2c_client(dev);
struct bma150_data *bma150 = i2c_get_clientdata(client);
return bma150_set_mode(bma150, BMA150_MODE_SLEEP);
}
static int bma150_resume(struct device *dev)
{
struct i2c_client *client = to_i2c_client(dev);
struct bma150_data *bma150 = i2c_get_clientdata(client);
return bma150_set_mode(bma150, BMA150_MODE_NORMAL);
}
#endif
static UNIVERSAL_DEV_PM_OPS(bma150_pm, bma150_suspend, bma150_resume, NULL);
static const struct i2c_device_id bma150_id[] = {
{ "bma150", 0 },
{ "smb380", 0 },
{ "bma023", 0 },
{ }
};
MODULE_DEVICE_TABLE(i2c, bma150_id);
static struct i2c_driver bma150_driver = {
.driver = {
.owner = THIS_MODULE,
.name = BMA150_DRIVER,
.pm = &bma150_pm,
},
.class = I2C_CLASS_HWMON,
.id_table = bma150_id,
.probe = bma150_probe,
.remove = bma150_remove,
};
module_i2c_driver(bma150_driver);
MODULE_AUTHOR("Albert Zhang <xu.zhang@bosch-sensortec.com>");
MODULE_DESCRIPTION("BMA150 driver");
MODULE_LICENSE("GPL");

918
drivers/input/misc/cm109.c Normal file
View File

@@ -0,0 +1,918 @@
/*
* Driver for the VoIP USB phones with CM109 chipsets.
*
* Copyright (C) 2007 - 2008 Alfred E. Heggestad <aeh@db.org>
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License as
* published by the Free Software Foundation, version 2.
*/
/*
* Tested devices:
* - Komunikate KIP1000
* - Genius G-talk
* - Allied-Telesis Corega USBPH01
* - ...
*
* This driver is based on the yealink.c driver
*
* Thanks to:
* - Authors of yealink.c
* - Thomas Reitmayr
* - Oliver Neukum for good review comments and code
* - Shaun Jackman <sjackman@gmail.com> for Genius G-talk keymap
* - Dmitry Torokhov for valuable input and review
*
* Todo:
* - Read/write EEPROM
*/
#include <linux/kernel.h>
#include <linux/init.h>
#include <linux/slab.h>
#include <linux/module.h>
#include <linux/moduleparam.h>
#include <linux/rwsem.h>
#include <linux/usb/input.h>
#define DRIVER_VERSION "20080805"
#define DRIVER_AUTHOR "Alfred E. Heggestad"
#define DRIVER_DESC "CM109 phone driver"
static char *phone = "kip1000";
module_param(phone, charp, S_IRUSR);
MODULE_PARM_DESC(phone, "Phone name {kip1000, gtalk, usbph01, atcom}");
enum {
/* HID Registers */
HID_IR0 = 0x00, /* Record/Playback-mute button, Volume up/down */
HID_IR1 = 0x01, /* GPI, generic registers or EEPROM_DATA0 */
HID_IR2 = 0x02, /* Generic registers or EEPROM_DATA1 */
HID_IR3 = 0x03, /* Generic registers or EEPROM_CTRL */
HID_OR0 = 0x00, /* Mapping control, buzzer, SPDIF (offset 0x04) */
HID_OR1 = 0x01, /* GPO - General Purpose Output */
HID_OR2 = 0x02, /* Set GPIO to input/output mode */
HID_OR3 = 0x03, /* SPDIF status channel or EEPROM_CTRL */
/* HID_IR0 */
RECORD_MUTE = 1 << 3,
PLAYBACK_MUTE = 1 << 2,
VOLUME_DOWN = 1 << 1,
VOLUME_UP = 1 << 0,
/* HID_OR0 */
/* bits 7-6
0: HID_OR1-2 are used for GPO; HID_OR0, 3 are used for buzzer
and SPDIF
1: HID_OR0-3 are used as generic HID registers
2: Values written to HID_OR0-3 are also mapped to MCU_CTRL,
EEPROM_DATA0-1, EEPROM_CTRL (see Note)
3: Reserved
*/
HID_OR_GPO_BUZ_SPDIF = 0 << 6,
HID_OR_GENERIC_HID_REG = 1 << 6,
HID_OR_MAP_MCU_EEPROM = 2 << 6,
BUZZER_ON = 1 << 5,
/* up to 256 normal keys, up to 16 special keys */
KEYMAP_SIZE = 256 + 16,
};
/* CM109 protocol packet */
struct cm109_ctl_packet {
u8 byte[4];
} __attribute__ ((packed));
enum { USB_PKT_LEN = sizeof(struct cm109_ctl_packet) };
/* CM109 device structure */
struct cm109_dev {
struct input_dev *idev; /* input device */
struct usb_device *udev; /* usb device */
struct usb_interface *intf;
/* irq input channel */
struct cm109_ctl_packet *irq_data;
dma_addr_t irq_dma;
struct urb *urb_irq;
/* control output channel */
struct cm109_ctl_packet *ctl_data;
dma_addr_t ctl_dma;
struct usb_ctrlrequest *ctl_req;
struct urb *urb_ctl;
/*
* The 3 bitfields below are protected by ctl_submit_lock.
* They have to be separate since they are accessed from IRQ
* context.
*/
unsigned irq_urb_pending:1; /* irq_urb is in flight */
unsigned ctl_urb_pending:1; /* ctl_urb is in flight */
unsigned buzzer_pending:1; /* need to issue buzz command */
spinlock_t ctl_submit_lock;
unsigned char buzzer_state; /* on/off */
/* flags */
unsigned open:1;
unsigned resetting:1;
unsigned shutdown:1;
/* This mutex protects writes to the above flags */
struct mutex pm_mutex;
unsigned short keymap[KEYMAP_SIZE];
char phys[64]; /* physical device path */
int key_code; /* last reported key */
int keybit; /* 0=new scan 1,2,4,8=scan columns */
u8 gpi; /* Cached value of GPI (high nibble) */
};
/******************************************************************************
* CM109 key interface
*****************************************************************************/
static unsigned short special_keymap(int code)
{
if (code > 0xff) {
switch (code - 0xff) {
case RECORD_MUTE: return KEY_MUTE;
case PLAYBACK_MUTE: return KEY_MUTE;
case VOLUME_DOWN: return KEY_VOLUMEDOWN;
case VOLUME_UP: return KEY_VOLUMEUP;
}
}
return KEY_RESERVED;
}
/* Map device buttons to internal key events.
*
* The "up" and "down" keys, are symbolised by arrows on the button.
* The "pickup" and "hangup" keys are symbolised by a green and red phone
* on the button.
Komunikate KIP1000 Keyboard Matrix
-> -- 1 -- 2 -- 3 --> GPI pin 4 (0x10)
| | | |
<- -- 4 -- 5 -- 6 --> GPI pin 5 (0x20)
| | | |
END - 7 -- 8 -- 9 --> GPI pin 6 (0x40)
| | | |
OK -- * -- 0 -- # --> GPI pin 7 (0x80)
| | | |
/|\ /|\ /|\ /|\
| | | |
GPO
pin: 3 2 1 0
0x8 0x4 0x2 0x1
*/
static unsigned short keymap_kip1000(int scancode)
{
switch (scancode) { /* phone key: */
case 0x82: return KEY_NUMERIC_0; /* 0 */
case 0x14: return KEY_NUMERIC_1; /* 1 */
case 0x12: return KEY_NUMERIC_2; /* 2 */
case 0x11: return KEY_NUMERIC_3; /* 3 */
case 0x24: return KEY_NUMERIC_4; /* 4 */
case 0x22: return KEY_NUMERIC_5; /* 5 */
case 0x21: return KEY_NUMERIC_6; /* 6 */
case 0x44: return KEY_NUMERIC_7; /* 7 */
case 0x42: return KEY_NUMERIC_8; /* 8 */
case 0x41: return KEY_NUMERIC_9; /* 9 */
case 0x81: return KEY_NUMERIC_POUND; /* # */
case 0x84: return KEY_NUMERIC_STAR; /* * */
case 0x88: return KEY_ENTER; /* pickup */
case 0x48: return KEY_ESC; /* hangup */
case 0x28: return KEY_LEFT; /* IN */
case 0x18: return KEY_RIGHT; /* OUT */
default: return special_keymap(scancode);
}
}
/*
Contributed by Shaun Jackman <sjackman@gmail.com>
Genius G-Talk keyboard matrix
0 1 2 3
4: 0 4 8 Talk
5: 1 5 9 End
6: 2 6 # Up
7: 3 7 * Down
*/
static unsigned short keymap_gtalk(int scancode)
{
switch (scancode) {
case 0x11: return KEY_NUMERIC_0;
case 0x21: return KEY_NUMERIC_1;
case 0x41: return KEY_NUMERIC_2;
case 0x81: return KEY_NUMERIC_3;
case 0x12: return KEY_NUMERIC_4;
case 0x22: return KEY_NUMERIC_5;
case 0x42: return KEY_NUMERIC_6;
case 0x82: return KEY_NUMERIC_7;
case 0x14: return KEY_NUMERIC_8;
case 0x24: return KEY_NUMERIC_9;
case 0x44: return KEY_NUMERIC_POUND; /* # */
case 0x84: return KEY_NUMERIC_STAR; /* * */
case 0x18: return KEY_ENTER; /* Talk (green handset) */
case 0x28: return KEY_ESC; /* End (red handset) */
case 0x48: return KEY_UP; /* Menu up (rocker switch) */
case 0x88: return KEY_DOWN; /* Menu down (rocker switch) */
default: return special_keymap(scancode);
}
}
/*
* Keymap for Allied-Telesis Corega USBPH01
* http://www.alliedtelesis-corega.com/2/1344/1437/1360/chprd.html
*
* Contributed by july@nat.bg
*/
static unsigned short keymap_usbph01(int scancode)
{
switch (scancode) {
case 0x11: return KEY_NUMERIC_0; /* 0 */
case 0x21: return KEY_NUMERIC_1; /* 1 */
case 0x41: return KEY_NUMERIC_2; /* 2 */
case 0x81: return KEY_NUMERIC_3; /* 3 */
case 0x12: return KEY_NUMERIC_4; /* 4 */
case 0x22: return KEY_NUMERIC_5; /* 5 */
case 0x42: return KEY_NUMERIC_6; /* 6 */
case 0x82: return KEY_NUMERIC_7; /* 7 */
case 0x14: return KEY_NUMERIC_8; /* 8 */
case 0x24: return KEY_NUMERIC_9; /* 9 */
case 0x44: return KEY_NUMERIC_POUND; /* # */
case 0x84: return KEY_NUMERIC_STAR; /* * */
case 0x18: return KEY_ENTER; /* pickup */
case 0x28: return KEY_ESC; /* hangup */
case 0x48: return KEY_LEFT; /* IN */
case 0x88: return KEY_RIGHT; /* OUT */
default: return special_keymap(scancode);
}
}
/*
* Keymap for ATCom AU-100
* http://www.atcom.cn/products.html
* http://www.packetizer.com/products/au100/
* http://www.voip-info.org/wiki/view/AU-100
*
* Contributed by daniel@gimpelevich.san-francisco.ca.us
*/
static unsigned short keymap_atcom(int scancode)
{
switch (scancode) { /* phone key: */
case 0x82: return KEY_NUMERIC_0; /* 0 */
case 0x11: return KEY_NUMERIC_1; /* 1 */
case 0x12: return KEY_NUMERIC_2; /* 2 */
case 0x14: return KEY_NUMERIC_3; /* 3 */
case 0x21: return KEY_NUMERIC_4; /* 4 */
case 0x22: return KEY_NUMERIC_5; /* 5 */
case 0x24: return KEY_NUMERIC_6; /* 6 */
case 0x41: return KEY_NUMERIC_7; /* 7 */
case 0x42: return KEY_NUMERIC_8; /* 8 */
case 0x44: return KEY_NUMERIC_9; /* 9 */
case 0x84: return KEY_NUMERIC_POUND; /* # */
case 0x81: return KEY_NUMERIC_STAR; /* * */
case 0x18: return KEY_ENTER; /* pickup */
case 0x28: return KEY_ESC; /* hangup */
case 0x48: return KEY_LEFT; /* left arrow */
case 0x88: return KEY_RIGHT; /* right arrow */
default: return special_keymap(scancode);
}
}
static unsigned short (*keymap)(int) = keymap_kip1000;
/*
* Completes a request by converting the data into events for the
* input subsystem.
*/
static void report_key(struct cm109_dev *dev, int key)
{
struct input_dev *idev = dev->idev;
if (dev->key_code >= 0) {
/* old key up */
input_report_key(idev, dev->key_code, 0);
}
dev->key_code = key;
if (key >= 0) {
/* new valid key */
input_report_key(idev, key, 1);
}
input_sync(idev);
}
/******************************************************************************
* CM109 usb communication interface
*****************************************************************************/
static void cm109_submit_buzz_toggle(struct cm109_dev *dev)
{
int error;
if (dev->buzzer_state)
dev->ctl_data->byte[HID_OR0] |= BUZZER_ON;
else
dev->ctl_data->byte[HID_OR0] &= ~BUZZER_ON;
error = usb_submit_urb(dev->urb_ctl, GFP_ATOMIC);
if (error)
dev_err(&dev->intf->dev,
"%s: usb_submit_urb (urb_ctl) failed %d\n",
__func__, error);
}
/*
* IRQ handler
*/
static void cm109_urb_irq_callback(struct urb *urb)
{
struct cm109_dev *dev = urb->context;
const int status = urb->status;
int error;
dev_dbg(&dev->intf->dev, "### URB IRQ: [0x%02x 0x%02x 0x%02x 0x%02x] keybit=0x%02x\n",
dev->irq_data->byte[0],
dev->irq_data->byte[1],
dev->irq_data->byte[2],
dev->irq_data->byte[3],
dev->keybit);
if (status) {
if (status == -ESHUTDOWN)
return;
dev_err(&dev->intf->dev, "%s: urb status %d\n", __func__, status);
}
/* Special keys */
if (dev->irq_data->byte[HID_IR0] & 0x0f) {
const int code = (dev->irq_data->byte[HID_IR0] & 0x0f);
report_key(dev, dev->keymap[0xff + code]);
}
/* Scan key column */
if (dev->keybit == 0xf) {
/* Any changes ? */
if ((dev->gpi & 0xf0) == (dev->irq_data->byte[HID_IR1] & 0xf0))
goto out;
dev->gpi = dev->irq_data->byte[HID_IR1] & 0xf0;
dev->keybit = 0x1;
} else {
report_key(dev, dev->keymap[dev->irq_data->byte[HID_IR1]]);
dev->keybit <<= 1;
if (dev->keybit > 0x8)
dev->keybit = 0xf;
}
out:
spin_lock(&dev->ctl_submit_lock);
dev->irq_urb_pending = 0;
if (likely(!dev->shutdown)) {
if (dev->buzzer_state)
dev->ctl_data->byte[HID_OR0] |= BUZZER_ON;
else
dev->ctl_data->byte[HID_OR0] &= ~BUZZER_ON;
dev->ctl_data->byte[HID_OR1] = dev->keybit;
dev->ctl_data->byte[HID_OR2] = dev->keybit;
dev->buzzer_pending = 0;
dev->ctl_urb_pending = 1;
error = usb_submit_urb(dev->urb_ctl, GFP_ATOMIC);
if (error)
dev_err(&dev->intf->dev,
"%s: usb_submit_urb (urb_ctl) failed %d\n",
__func__, error);
}
spin_unlock(&dev->ctl_submit_lock);
}
static void cm109_urb_ctl_callback(struct urb *urb)
{
struct cm109_dev *dev = urb->context;
const int status = urb->status;
int error;
dev_dbg(&dev->intf->dev, "### URB CTL: [0x%02x 0x%02x 0x%02x 0x%02x]\n",
dev->ctl_data->byte[0],
dev->ctl_data->byte[1],
dev->ctl_data->byte[2],
dev->ctl_data->byte[3]);
if (status)
dev_err(&dev->intf->dev, "%s: urb status %d\n", __func__, status);
spin_lock(&dev->ctl_submit_lock);
dev->ctl_urb_pending = 0;
if (likely(!dev->shutdown)) {
if (dev->buzzer_pending) {
dev->buzzer_pending = 0;
dev->ctl_urb_pending = 1;
cm109_submit_buzz_toggle(dev);
} else if (likely(!dev->irq_urb_pending)) {
/* ask for key data */
dev->irq_urb_pending = 1;
error = usb_submit_urb(dev->urb_irq, GFP_ATOMIC);
if (error)
dev_err(&dev->intf->dev,
"%s: usb_submit_urb (urb_irq) failed %d\n",
__func__, error);
}
}
spin_unlock(&dev->ctl_submit_lock);
}
static void cm109_toggle_buzzer_async(struct cm109_dev *dev)
{
unsigned long flags;
spin_lock_irqsave(&dev->ctl_submit_lock, flags);
if (dev->ctl_urb_pending) {
/* URB completion will resubmit */
dev->buzzer_pending = 1;
} else {
dev->ctl_urb_pending = 1;
cm109_submit_buzz_toggle(dev);
}
spin_unlock_irqrestore(&dev->ctl_submit_lock, flags);
}
static void cm109_toggle_buzzer_sync(struct cm109_dev *dev, int on)
{
int error;
if (on)
dev->ctl_data->byte[HID_OR0] |= BUZZER_ON;
else
dev->ctl_data->byte[HID_OR0] &= ~BUZZER_ON;
error = usb_control_msg(dev->udev,
usb_sndctrlpipe(dev->udev, 0),
dev->ctl_req->bRequest,
dev->ctl_req->bRequestType,
le16_to_cpu(dev->ctl_req->wValue),
le16_to_cpu(dev->ctl_req->wIndex),
dev->ctl_data,
USB_PKT_LEN, USB_CTRL_SET_TIMEOUT);
if (error < 0 && error != -EINTR)
dev_err(&dev->intf->dev, "%s: usb_control_msg() failed %d\n",
__func__, error);
}
static void cm109_stop_traffic(struct cm109_dev *dev)
{
dev->shutdown = 1;
/*
* Make sure other CPUs see this
*/
smp_wmb();
usb_kill_urb(dev->urb_ctl);
usb_kill_urb(dev->urb_irq);
cm109_toggle_buzzer_sync(dev, 0);
dev->shutdown = 0;
smp_wmb();
}
static void cm109_restore_state(struct cm109_dev *dev)
{
if (dev->open) {
/*
* Restore buzzer state.
* This will also kick regular URB submission
*/
cm109_toggle_buzzer_async(dev);
}
}
/******************************************************************************
* input event interface
*****************************************************************************/
static int cm109_input_open(struct input_dev *idev)
{
struct cm109_dev *dev = input_get_drvdata(idev);
int error;
error = usb_autopm_get_interface(dev->intf);
if (error < 0) {
dev_err(&idev->dev, "%s - cannot autoresume, result %d\n",
__func__, error);
return error;
}
mutex_lock(&dev->pm_mutex);
dev->buzzer_state = 0;
dev->key_code = -1; /* no keys pressed */
dev->keybit = 0xf;
/* issue INIT */
dev->ctl_data->byte[HID_OR0] = HID_OR_GPO_BUZ_SPDIF;
dev->ctl_data->byte[HID_OR1] = dev->keybit;
dev->ctl_data->byte[HID_OR2] = dev->keybit;
dev->ctl_data->byte[HID_OR3] = 0x00;
error = usb_submit_urb(dev->urb_ctl, GFP_KERNEL);
if (error)
dev_err(&dev->intf->dev, "%s: usb_submit_urb (urb_ctl) failed %d\n",
__func__, error);
else
dev->open = 1;
mutex_unlock(&dev->pm_mutex);
if (error)
usb_autopm_put_interface(dev->intf);
return error;
}
static void cm109_input_close(struct input_dev *idev)
{
struct cm109_dev *dev = input_get_drvdata(idev);
mutex_lock(&dev->pm_mutex);
/*
* Once we are here event delivery is stopped so we
* don't need to worry about someone starting buzzer
* again
*/
cm109_stop_traffic(dev);
dev->open = 0;
mutex_unlock(&dev->pm_mutex);
usb_autopm_put_interface(dev->intf);
}
static int cm109_input_ev(struct input_dev *idev, unsigned int type,
unsigned int code, int value)
{
struct cm109_dev *dev = input_get_drvdata(idev);
dev_dbg(&dev->intf->dev,
"input_ev: type=%u code=%u value=%d\n", type, code, value);
if (type != EV_SND)
return -EINVAL;
switch (code) {
case SND_TONE:
case SND_BELL:
dev->buzzer_state = !!value;
if (!dev->resetting)
cm109_toggle_buzzer_async(dev);
return 0;
default:
return -EINVAL;
}
}
/******************************************************************************
* Linux interface and usb initialisation
*****************************************************************************/
struct driver_info {
char *name;
};
static const struct driver_info info_cm109 = {
.name = "CM109 USB driver",
};
enum {
VENDOR_ID = 0x0d8c, /* C-Media Electronics */
PRODUCT_ID_CM109 = 0x000e, /* CM109 defines range 0x0008 - 0x000f */
};
/* table of devices that work with this driver */
static const struct usb_device_id cm109_usb_table[] = {
{
.match_flags = USB_DEVICE_ID_MATCH_DEVICE |
USB_DEVICE_ID_MATCH_INT_INFO,
.idVendor = VENDOR_ID,
.idProduct = PRODUCT_ID_CM109,
.bInterfaceClass = USB_CLASS_HID,
.bInterfaceSubClass = 0,
.bInterfaceProtocol = 0,
.driver_info = (kernel_ulong_t) &info_cm109
},
/* you can add more devices here with product ID 0x0008 - 0x000f */
{ }
};
static void cm109_usb_cleanup(struct cm109_dev *dev)
{
kfree(dev->ctl_req);
if (dev->ctl_data)
usb_free_coherent(dev->udev, USB_PKT_LEN,
dev->ctl_data, dev->ctl_dma);
if (dev->irq_data)
usb_free_coherent(dev->udev, USB_PKT_LEN,
dev->irq_data, dev->irq_dma);
usb_free_urb(dev->urb_irq); /* parameter validation in core/urb */
usb_free_urb(dev->urb_ctl); /* parameter validation in core/urb */
kfree(dev);
}
static void cm109_usb_disconnect(struct usb_interface *interface)
{
struct cm109_dev *dev = usb_get_intfdata(interface);
usb_set_intfdata(interface, NULL);
input_unregister_device(dev->idev);
cm109_usb_cleanup(dev);
}
static int cm109_usb_probe(struct usb_interface *intf,
const struct usb_device_id *id)
{
struct usb_device *udev = interface_to_usbdev(intf);
struct driver_info *nfo = (struct driver_info *)id->driver_info;
struct usb_host_interface *interface;
struct usb_endpoint_descriptor *endpoint;
struct cm109_dev *dev;
struct input_dev *input_dev = NULL;
int ret, pipe, i;
int error = -ENOMEM;
interface = intf->cur_altsetting;
endpoint = &interface->endpoint[0].desc;
if (!usb_endpoint_is_int_in(endpoint))
return -ENODEV;
dev = kzalloc(sizeof(*dev), GFP_KERNEL);
if (!dev)
return -ENOMEM;
spin_lock_init(&dev->ctl_submit_lock);
mutex_init(&dev->pm_mutex);
dev->udev = udev;
dev->intf = intf;
dev->idev = input_dev = input_allocate_device();
if (!input_dev)
goto err_out;
/* allocate usb buffers */
dev->irq_data = usb_alloc_coherent(udev, USB_PKT_LEN,
GFP_KERNEL, &dev->irq_dma);
if (!dev->irq_data)
goto err_out;
dev->ctl_data = usb_alloc_coherent(udev, USB_PKT_LEN,
GFP_KERNEL, &dev->ctl_dma);
if (!dev->ctl_data)
goto err_out;
dev->ctl_req = kmalloc(sizeof(*(dev->ctl_req)), GFP_KERNEL);
if (!dev->ctl_req)
goto err_out;
/* allocate urb structures */
dev->urb_irq = usb_alloc_urb(0, GFP_KERNEL);
if (!dev->urb_irq)
goto err_out;
dev->urb_ctl = usb_alloc_urb(0, GFP_KERNEL);
if (!dev->urb_ctl)
goto err_out;
/* get a handle to the interrupt data pipe */
pipe = usb_rcvintpipe(udev, endpoint->bEndpointAddress);
ret = usb_maxpacket(udev, pipe, usb_pipeout(pipe));
if (ret != USB_PKT_LEN)
dev_err(&intf->dev, "invalid payload size %d, expected %d\n",
ret, USB_PKT_LEN);
/* initialise irq urb */
usb_fill_int_urb(dev->urb_irq, udev, pipe, dev->irq_data,
USB_PKT_LEN,
cm109_urb_irq_callback, dev, endpoint->bInterval);
dev->urb_irq->transfer_dma = dev->irq_dma;
dev->urb_irq->transfer_flags |= URB_NO_TRANSFER_DMA_MAP;
dev->urb_irq->dev = udev;
/* initialise ctl urb */
dev->ctl_req->bRequestType = USB_TYPE_CLASS | USB_RECIP_INTERFACE |
USB_DIR_OUT;
dev->ctl_req->bRequest = USB_REQ_SET_CONFIGURATION;
dev->ctl_req->wValue = cpu_to_le16(0x200);
dev->ctl_req->wIndex = cpu_to_le16(interface->desc.bInterfaceNumber);
dev->ctl_req->wLength = cpu_to_le16(USB_PKT_LEN);
usb_fill_control_urb(dev->urb_ctl, udev, usb_sndctrlpipe(udev, 0),
(void *)dev->ctl_req, dev->ctl_data, USB_PKT_LEN,
cm109_urb_ctl_callback, dev);
dev->urb_ctl->transfer_dma = dev->ctl_dma;
dev->urb_ctl->transfer_flags |= URB_NO_TRANSFER_DMA_MAP;
dev->urb_ctl->dev = udev;
/* find out the physical bus location */
usb_make_path(udev, dev->phys, sizeof(dev->phys));
strlcat(dev->phys, "/input0", sizeof(dev->phys));
/* register settings for the input device */
input_dev->name = nfo->name;
input_dev->phys = dev->phys;
usb_to_input_id(udev, &input_dev->id);
input_dev->dev.parent = &intf->dev;
input_set_drvdata(input_dev, dev);
input_dev->open = cm109_input_open;
input_dev->close = cm109_input_close;
input_dev->event = cm109_input_ev;
input_dev->keycode = dev->keymap;
input_dev->keycodesize = sizeof(unsigned char);
input_dev->keycodemax = ARRAY_SIZE(dev->keymap);
input_dev->evbit[0] = BIT_MASK(EV_KEY) | BIT_MASK(EV_SND);
input_dev->sndbit[0] = BIT_MASK(SND_BELL) | BIT_MASK(SND_TONE);
/* register available key events */
for (i = 0; i < KEYMAP_SIZE; i++) {
unsigned short k = keymap(i);
dev->keymap[i] = k;
__set_bit(k, input_dev->keybit);
}
__clear_bit(KEY_RESERVED, input_dev->keybit);
error = input_register_device(dev->idev);
if (error)
goto err_out;
usb_set_intfdata(intf, dev);
return 0;
err_out:
input_free_device(input_dev);
cm109_usb_cleanup(dev);
return error;
}
static int cm109_usb_suspend(struct usb_interface *intf, pm_message_t message)
{
struct cm109_dev *dev = usb_get_intfdata(intf);
dev_info(&intf->dev, "cm109: usb_suspend (event=%d)\n", message.event);
mutex_lock(&dev->pm_mutex);
cm109_stop_traffic(dev);
mutex_unlock(&dev->pm_mutex);
return 0;
}
static int cm109_usb_resume(struct usb_interface *intf)
{
struct cm109_dev *dev = usb_get_intfdata(intf);
dev_info(&intf->dev, "cm109: usb_resume\n");
mutex_lock(&dev->pm_mutex);
cm109_restore_state(dev);
mutex_unlock(&dev->pm_mutex);
return 0;
}
static int cm109_usb_pre_reset(struct usb_interface *intf)
{
struct cm109_dev *dev = usb_get_intfdata(intf);
mutex_lock(&dev->pm_mutex);
/*
* Make sure input events don't try to toggle buzzer
* while we are resetting
*/
dev->resetting = 1;
smp_wmb();
cm109_stop_traffic(dev);
return 0;
}
static int cm109_usb_post_reset(struct usb_interface *intf)
{
struct cm109_dev *dev = usb_get_intfdata(intf);
dev->resetting = 0;
smp_wmb();
cm109_restore_state(dev);
mutex_unlock(&dev->pm_mutex);
return 0;
}
static struct usb_driver cm109_driver = {
.name = "cm109",
.probe = cm109_usb_probe,
.disconnect = cm109_usb_disconnect,
.suspend = cm109_usb_suspend,
.resume = cm109_usb_resume,
.reset_resume = cm109_usb_resume,
.pre_reset = cm109_usb_pre_reset,
.post_reset = cm109_usb_post_reset,
.id_table = cm109_usb_table,
.supports_autosuspend = 1,
};
static int __init cm109_select_keymap(void)
{
/* Load the phone keymap */
if (!strcasecmp(phone, "kip1000")) {
keymap = keymap_kip1000;
printk(KERN_INFO KBUILD_MODNAME ": "
"Keymap for Komunikate KIP1000 phone loaded\n");
} else if (!strcasecmp(phone, "gtalk")) {
keymap = keymap_gtalk;
printk(KERN_INFO KBUILD_MODNAME ": "
"Keymap for Genius G-talk phone loaded\n");
} else if (!strcasecmp(phone, "usbph01")) {
keymap = keymap_usbph01;
printk(KERN_INFO KBUILD_MODNAME ": "
"Keymap for Allied-Telesis Corega USBPH01 phone loaded\n");
} else if (!strcasecmp(phone, "atcom")) {
keymap = keymap_atcom;
printk(KERN_INFO KBUILD_MODNAME ": "
"Keymap for ATCom AU-100 phone loaded\n");
} else {
printk(KERN_ERR KBUILD_MODNAME ": "
"Unsupported phone: %s\n", phone);
return -EINVAL;
}
return 0;
}
static int __init cm109_init(void)
{
int err;
err = cm109_select_keymap();
if (err)
return err;
err = usb_register(&cm109_driver);
if (err)
return err;
printk(KERN_INFO KBUILD_MODNAME ": "
DRIVER_DESC ": " DRIVER_VERSION " (C) " DRIVER_AUTHOR "\n");
return 0;
}
static void __exit cm109_exit(void)
{
usb_deregister(&cm109_driver);
}
module_init(cm109_init);
module_exit(cm109_exit);
MODULE_DEVICE_TABLE(usb, cm109_usb_table);
MODULE_AUTHOR(DRIVER_AUTHOR);
MODULE_DESCRIPTION(DRIVER_DESC);
MODULE_LICENSE("GPL");

399
drivers/input/misc/cma3000_d0x.c Normal file
View File

@@ -0,0 +1,399 @@
/*
* VTI CMA3000_D0x Accelerometer driver
*
* Copyright (C) 2010 Texas Instruments
* Author: Hemanth V <hemanthv@ti.com>
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 as published by
* the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
* more details.
*
* You should have received a copy of the GNU General Public License along with
* this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include <linux/types.h>
#include <linux/interrupt.h>
#include <linux/delay.h>
#include <linux/slab.h>
#include <linux/input.h>
#include <linux/input/cma3000.h>
#include <linux/module.h>
#include "cma3000_d0x.h"
#define CMA3000_WHOAMI 0x00
#define CMA3000_REVID 0x01
#define CMA3000_CTRL 0x02
#define CMA3000_STATUS 0x03
#define CMA3000_RSTR 0x04
#define CMA3000_INTSTATUS 0x05
#define CMA3000_DOUTX 0x06
#define CMA3000_DOUTY 0x07
#define CMA3000_DOUTZ 0x08
#define CMA3000_MDTHR 0x09
#define CMA3000_MDFFTMR 0x0A
#define CMA3000_FFTHR 0x0B
#define CMA3000_RANGE2G (1 << 7)
#define CMA3000_RANGE8G (0 << 7)
#define CMA3000_BUSI2C (0 << 4)
#define CMA3000_MODEMASK (7 << 1)
#define CMA3000_GRANGEMASK (1 << 7)
#define CMA3000_STATUS_PERR 1
#define CMA3000_INTSTATUS_FFDET (1 << 2)
/* Settling time delay in ms */
#define CMA3000_SETDELAY 30
/* Delay for clearing interrupt in us */
#define CMA3000_INTDELAY 44
/*
* Bit weights in mg for bit 0, other bits need
* multiply factor 2^n. Eight bit is the sign bit.
*/
#define BIT_TO_2G 18
#define BIT_TO_8G 71
struct cma3000_accl_data {
const struct cma3000_bus_ops *bus_ops;
const struct cma3000_platform_data *pdata;
struct device *dev;
struct input_dev *input_dev;
int bit_to_mg;
int irq;
int g_range;
u8 mode;
struct mutex mutex;
bool opened;
bool suspended;
};
#define CMA3000_READ(data, reg, msg) \
(data->bus_ops->read(data->dev, reg, msg))
#define CMA3000_SET(data, reg, val, msg) \
((data)->bus_ops->write(data->dev, reg, val, msg))
/*
* Conversion for each of the eight modes to g, depending
* on G range i.e 2G or 8G. Some modes always operate in
* 8G.
*/
static int mode_to_mg[8][2] = {
{ 0, 0 },
{ BIT_TO_8G, BIT_TO_2G },
{ BIT_TO_8G, BIT_TO_2G },
{ BIT_TO_8G, BIT_TO_8G },
{ BIT_TO_8G, BIT_TO_8G },
{ BIT_TO_8G, BIT_TO_2G },
{ BIT_TO_8G, BIT_TO_2G },
{ 0, 0},
};
static void decode_mg(struct cma3000_accl_data *data, int *datax,
int *datay, int *dataz)
{
/* Data in 2's complement, convert to mg */
*datax = ((s8)*datax) * data->bit_to_mg;
*datay = ((s8)*datay) * data->bit_to_mg;
*dataz = ((s8)*dataz) * data->bit_to_mg;
}
static irqreturn_t cma3000_thread_irq(int irq, void *dev_id)
{
struct cma3000_accl_data *data = dev_id;
int datax, datay, dataz, intr_status;
u8 ctrl, mode, range;
intr_status = CMA3000_READ(data, CMA3000_INTSTATUS, "interrupt status");
if (intr_status < 0)
return IRQ_NONE;
/* Check if free fall is detected, report immediately */
if (intr_status & CMA3000_INTSTATUS_FFDET) {
input_report_abs(data->input_dev, ABS_MISC, 1);
input_sync(data->input_dev);
} else {
input_report_abs(data->input_dev, ABS_MISC, 0);
}
datax = CMA3000_READ(data, CMA3000_DOUTX, "X");
datay = CMA3000_READ(data, CMA3000_DOUTY, "Y");
dataz = CMA3000_READ(data, CMA3000_DOUTZ, "Z");
ctrl = CMA3000_READ(data, CMA3000_CTRL, "ctrl");
mode = (ctrl & CMA3000_MODEMASK) >> 1;
range = (ctrl & CMA3000_GRANGEMASK) >> 7;
data->bit_to_mg = mode_to_mg[mode][range];
/* Interrupt not for this device */
if (data->bit_to_mg == 0)
return IRQ_NONE;
/* Decode register values to milli g */
decode_mg(data, &datax, &datay, &dataz);
input_report_abs(data->input_dev, ABS_X, datax);
input_report_abs(data->input_dev, ABS_Y, datay);
input_report_abs(data->input_dev, ABS_Z, dataz);
input_sync(data->input_dev);
return IRQ_HANDLED;
}
static int cma3000_reset(struct cma3000_accl_data *data)
{
int val;
/* Reset sequence */
CMA3000_SET(data, CMA3000_RSTR, 0x02, "Reset");
CMA3000_SET(data, CMA3000_RSTR, 0x0A, "Reset");
CMA3000_SET(data, CMA3000_RSTR, 0x04, "Reset");
/* Settling time delay */
mdelay(10);
val = CMA3000_READ(data, CMA3000_STATUS, "Status");
if (val < 0) {
dev_err(data->dev, "Reset failed\n");
return val;
}
if (val & CMA3000_STATUS_PERR) {
dev_err(data->dev, "Parity Error\n");
return -EIO;
}
return 0;
}
static int cma3000_poweron(struct cma3000_accl_data *data)
{
const struct cma3000_platform_data *pdata = data->pdata;
u8 ctrl = 0;
int ret;
if (data->g_range == CMARANGE_2G) {
ctrl = (data->mode << 1) | CMA3000_RANGE2G;
} else if (data->g_range == CMARANGE_8G) {
ctrl = (data->mode << 1) | CMA3000_RANGE8G;
} else {
dev_info(data->dev,
"Invalid G range specified, assuming 8G\n");
ctrl = (data->mode << 1) | CMA3000_RANGE8G;
}
ctrl |= data->bus_ops->ctrl_mod;
CMA3000_SET(data, CMA3000_MDTHR, pdata->mdthr,
"Motion Detect Threshold");
CMA3000_SET(data, CMA3000_MDFFTMR, pdata->mdfftmr,
"Time register");
CMA3000_SET(data, CMA3000_FFTHR, pdata->ffthr,
"Free fall threshold");
ret = CMA3000_SET(data, CMA3000_CTRL, ctrl, "Mode setting");
if (ret < 0)
return -EIO;
msleep(CMA3000_SETDELAY);
return 0;
}
static int cma3000_poweroff(struct cma3000_accl_data *data)
{
int ret;
ret = CMA3000_SET(data, CMA3000_CTRL, CMAMODE_POFF, "Mode setting");
msleep(CMA3000_SETDELAY);
return ret;
}
static int cma3000_open(struct input_dev *input_dev)
{
struct cma3000_accl_data *data = input_get_drvdata(input_dev);
mutex_lock(&data->mutex);
if (!data->suspended)
cma3000_poweron(data);
data->opened = true;
mutex_unlock(&data->mutex);
return 0;
}
static void cma3000_close(struct input_dev *input_dev)
{
struct cma3000_accl_data *data = input_get_drvdata(input_dev);
mutex_lock(&data->mutex);
if (!data->suspended)
cma3000_poweroff(data);
data->opened = false;
mutex_unlock(&data->mutex);
}
void cma3000_suspend(struct cma3000_accl_data *data)
{
mutex_lock(&data->mutex);
if (!data->suspended && data->opened)
cma3000_poweroff(data);
data->suspended = true;
mutex_unlock(&data->mutex);
}
EXPORT_SYMBOL(cma3000_suspend);
void cma3000_resume(struct cma3000_accl_data *data)
{
mutex_lock(&data->mutex);
if (data->suspended && data->opened)
cma3000_poweron(data);
data->suspended = false;
mutex_unlock(&data->mutex);
}
EXPORT_SYMBOL(cma3000_resume);
struct cma3000_accl_data *cma3000_init(struct device *dev, int irq,
const struct cma3000_bus_ops *bops)
{
const struct cma3000_platform_data *pdata = dev->platform_data;
struct cma3000_accl_data *data;
struct input_dev *input_dev;
int rev;
int error;
if (!pdata) {
dev_err(dev, "platform data not found\n");
error = -EINVAL;
goto err_out;
}
/* if no IRQ return error */
if (irq == 0) {
error = -EINVAL;
goto err_out;
}
data = kzalloc(sizeof(struct cma3000_accl_data), GFP_KERNEL);
input_dev = input_allocate_device();
if (!data || !input_dev) {
error = -ENOMEM;
goto err_free_mem;
}
data->dev = dev;
data->input_dev = input_dev;
data->bus_ops = bops;
data->pdata = pdata;
data->irq = irq;
mutex_init(&data->mutex);
data->mode = pdata->mode;
if (data->mode > CMAMODE_POFF) {
data->mode = CMAMODE_MOTDET;
dev_warn(dev,
"Invalid mode specified, assuming Motion Detect\n");
}
data->g_range = pdata->g_range;
if (data->g_range != CMARANGE_2G && data->g_range != CMARANGE_8G) {
dev_info(dev,
"Invalid G range specified, assuming 8G\n");
data->g_range = CMARANGE_8G;
}
input_dev->name = "cma3000-accelerometer";
input_dev->id.bustype = bops->bustype;
input_dev->open = cma3000_open;
input_dev->close = cma3000_close;
__set_bit(EV_ABS, input_dev->evbit);
input_set_abs_params(input_dev, ABS_X,
-data->g_range, data->g_range, pdata->fuzz_x, 0);
input_set_abs_params(input_dev, ABS_Y,
-data->g_range, data->g_range, pdata->fuzz_y, 0);
input_set_abs_params(input_dev, ABS_Z,
-data->g_range, data->g_range, pdata->fuzz_z, 0);
input_set_abs_params(input_dev, ABS_MISC, 0, 1, 0, 0);
input_set_drvdata(input_dev, data);
error = cma3000_reset(data);
if (error)
goto err_free_mem;
rev = CMA3000_READ(data, CMA3000_REVID, "Revid");
if (rev < 0) {
error = rev;
goto err_free_mem;
}
pr_info("CMA3000 Accelerometer: Revision %x\n", rev);
error = request_threaded_irq(irq, NULL, cma3000_thread_irq,
pdata->irqflags | IRQF_ONESHOT,
"cma3000_d0x", data);
if (error) {
dev_err(dev, "request_threaded_irq failed\n");
goto err_free_mem;
}
error = input_register_device(data->input_dev);
if (error) {
dev_err(dev, "Unable to register input device\n");
goto err_free_irq;
}
return data;
err_free_irq:
free_irq(irq, data);
err_free_mem:
input_free_device(input_dev);
kfree(data);
err_out:
return ERR_PTR(error);
}
EXPORT_SYMBOL(cma3000_init);
void cma3000_exit(struct cma3000_accl_data *data)
{
free_irq(data->irq, data);
input_unregister_device(data->input_dev);
kfree(data);
}
EXPORT_SYMBOL(cma3000_exit);
MODULE_DESCRIPTION("CMA3000-D0x Accelerometer Driver");
MODULE_LICENSE("GPL");
MODULE_AUTHOR("Hemanth V <hemanthv@ti.com>");

42
drivers/input/misc/cma3000_d0x.h Normal file
View File

@@ -0,0 +1,42 @@
/*
* VTI CMA3000_D0x Accelerometer driver
*
* Copyright (C) 2010 Texas Instruments
* Author: Hemanth V <hemanthv@ti.com>
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 as published by
* the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
* more details.
*
* You should have received a copy of the GNU General Public License along with
* this program. If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef _INPUT_CMA3000_H
#define _INPUT_CMA3000_H
#include <linux/types.h>
#include <linux/input.h>
struct device;
struct cma3000_accl_data;
struct cma3000_bus_ops {
u16 bustype;
u8 ctrl_mod;
int (*read)(struct device *, u8, char *);
int (*write)(struct device *, u8, u8, char *);
};
struct cma3000_accl_data *cma3000_init(struct device *dev, int irq,
const struct cma3000_bus_ops *bops);
void cma3000_exit(struct cma3000_accl_data *);
void cma3000_suspend(struct cma3000_accl_data *);
void cma3000_resume(struct cma3000_accl_data *);
#endif

132
drivers/input/misc/cma3000_d0x_i2c.c Normal file
View File

@@ -0,0 +1,132 @@
/*
* Implements I2C interface for VTI CMA300_D0x Accelerometer driver
*
* Copyright (C) 2010 Texas Instruments
* Author: Hemanth V <hemanthv@ti.com>
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 as published by
* the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
* more details.
*
* You should have received a copy of the GNU General Public License along with
* this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include <linux/module.h>
#include <linux/i2c.h>
#include <linux/input/cma3000.h>
#include "cma3000_d0x.h"
static int cma3000_i2c_set(struct device *dev,
u8 reg, u8 val, char *msg)
{
struct i2c_client *client = to_i2c_client(dev);
int ret;
ret = i2c_smbus_write_byte_data(client, reg, val);
if (ret < 0)
dev_err(&client->dev,
"%s failed (%s, %d)\n", __func__, msg, ret);
return ret;
}
static int cma3000_i2c_read(struct device *dev, u8 reg, char *msg)
{
struct i2c_client *client = to_i2c_client(dev);
int ret;
ret = i2c_smbus_read_byte_data(client, reg);
if (ret < 0)
dev_err(&client->dev,
"%s failed (%s, %d)\n", __func__, msg, ret);
return ret;
}
static const struct cma3000_bus_ops cma3000_i2c_bops = {
.bustype = BUS_I2C,
#define CMA3000_BUSI2C (0 << 4)
.ctrl_mod = CMA3000_BUSI2C,
.read = cma3000_i2c_read,
.write = cma3000_i2c_set,
};
static int cma3000_i2c_probe(struct i2c_client *client,
const struct i2c_device_id *id)
{
struct cma3000_accl_data *data;
data = cma3000_init(&client->dev, client->irq, &cma3000_i2c_bops);
if (IS_ERR(data))
return PTR_ERR(data);
i2c_set_clientdata(client, data);
return 0;
}
static int cma3000_i2c_remove(struct i2c_client *client)
{
struct cma3000_accl_data *data = i2c_get_clientdata(client);
cma3000_exit(data);
return 0;
}
#ifdef CONFIG_PM
static int cma3000_i2c_suspend(struct device *dev)
{
struct i2c_client *client = to_i2c_client(dev);
struct cma3000_accl_data *data = i2c_get_clientdata(client);
cma3000_suspend(data);
return 0;
}
static int cma3000_i2c_resume(struct device *dev)
{
struct i2c_client *client = to_i2c_client(dev);
struct cma3000_accl_data *data = i2c_get_clientdata(client);
cma3000_resume(data);
return 0;
}
static const struct dev_pm_ops cma3000_i2c_pm_ops = {
.suspend = cma3000_i2c_suspend,
.resume = cma3000_i2c_resume,
};
#endif
static const struct i2c_device_id cma3000_i2c_id[] = {
{ "cma3000_d01", 0 },
{ },
};
MODULE_DEVICE_TABLE(i2c, cma3000_i2c_id);
static struct i2c_driver cma3000_i2c_driver = {
.probe = cma3000_i2c_probe,
.remove = cma3000_i2c_remove,
.id_table = cma3000_i2c_id,
.driver = {
.name = "cma3000_i2c_accl",
.owner = THIS_MODULE,
#ifdef CONFIG_PM
.pm = &cma3000_i2c_pm_ops,
#endif
},
};
module_i2c_driver(cma3000_i2c_driver);
MODULE_DESCRIPTION("CMA3000-D0x Accelerometer I2C Driver");
MODULE_LICENSE("GPL");
MODULE_AUTHOR("Hemanth V <hemanthv@ti.com>");

166
drivers/input/misc/cobalt_btns.c Normal file
View File

@@ -0,0 +1,166 @@
/*
* Cobalt button interface driver.
*
* Copyright (C) 2007-2008 Yoichi Yuasa <yuasa@linux-mips.org>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#include <linux/init.h>
#include <linux/input-polldev.h>
#include <linux/ioport.h>
#include <linux/module.h>
#include <linux/platform_device.h>
#include <linux/slab.h>
#define BUTTONS_POLL_INTERVAL 30 /* msec */
#define BUTTONS_COUNT_THRESHOLD 3
#define BUTTONS_STATUS_MASK 0xfe000000
static const unsigned short cobalt_map[] = {
KEY_RESERVED,
KEY_RESTART,
KEY_LEFT,
KEY_UP,
KEY_DOWN,
KEY_RIGHT,
KEY_ENTER,
KEY_SELECT
};
struct buttons_dev {
struct input_polled_dev *poll_dev;
unsigned short keymap[ARRAY_SIZE(cobalt_map)];
int count[ARRAY_SIZE(cobalt_map)];
void __iomem *reg;
};
static void handle_buttons(struct input_polled_dev *dev)
{
struct buttons_dev *bdev = dev->private;
struct input_dev *input = dev->input;
uint32_t status;
int i;
status = ~readl(bdev->reg) >> 24;
for (i = 0; i < ARRAY_SIZE(bdev->keymap); i++) {
if (status & (1U << i)) {
if (++bdev->count[i] == BUTTONS_COUNT_THRESHOLD) {
input_event(input, EV_MSC, MSC_SCAN, i);
input_report_key(input, bdev->keymap[i], 1);
input_sync(input);
}
} else {
if (bdev->count[i] >= BUTTONS_COUNT_THRESHOLD) {
input_event(input, EV_MSC, MSC_SCAN, i);
input_report_key(input, bdev->keymap[i], 0);
input_sync(input);
}
bdev->count[i] = 0;
}
}
}
static int cobalt_buttons_probe(struct platform_device *pdev)
{
struct buttons_dev *bdev;
struct input_polled_dev *poll_dev;
struct input_dev *input;
struct resource *res;
int error, i;
bdev = kzalloc(sizeof(struct buttons_dev), GFP_KERNEL);
poll_dev = input_allocate_polled_device();
if (!bdev || !poll_dev) {
error = -ENOMEM;
goto err_free_mem;
}
memcpy(bdev->keymap, cobalt_map, sizeof(bdev->keymap));
poll_dev->private = bdev;
poll_dev->poll = handle_buttons;
poll_dev->poll_interval = BUTTONS_POLL_INTERVAL;
input = poll_dev->input;
input->name = "Cobalt buttons";
input->phys = "cobalt/input0";
input->id.bustype = BUS_HOST;
input->dev.parent = &pdev->dev;
input->keycode = bdev->keymap;
input->keycodemax = ARRAY_SIZE(bdev->keymap);
input->keycodesize = sizeof(unsigned short);
input_set_capability(input, EV_MSC, MSC_SCAN);
__set_bit(EV_KEY, input->evbit);
for (i = 0; i < ARRAY_SIZE(cobalt_map); i++)
__set_bit(bdev->keymap[i], input->keybit);
__clear_bit(KEY_RESERVED, input->keybit);
res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
if (!res) {
error = -EBUSY;
goto err_free_mem;
}
bdev->poll_dev = poll_dev;
bdev->reg = ioremap(res->start, resource_size(res));
dev_set_drvdata(&pdev->dev, bdev);
error = input_register_polled_device(poll_dev);
if (error)
goto err_iounmap;
return 0;
err_iounmap:
iounmap(bdev->reg);
err_free_mem:
input_free_polled_device(poll_dev);
kfree(bdev);
dev_set_drvdata(&pdev->dev, NULL);
return error;
}
static int cobalt_buttons_remove(struct platform_device *pdev)
{
struct device *dev = &pdev->dev;
struct buttons_dev *bdev = dev_get_drvdata(dev);
input_unregister_polled_device(bdev->poll_dev);
input_free_polled_device(bdev->poll_dev);
iounmap(bdev->reg);
kfree(bdev);
dev_set_drvdata(dev, NULL);
return 0;
}
MODULE_AUTHOR("Yoichi Yuasa <yuasa@linux-mips.org>");
MODULE_DESCRIPTION("Cobalt button interface driver");
MODULE_LICENSE("GPL");
/* work with hotplug and coldplug */
MODULE_ALIAS("platform:Cobalt buttons");
static struct platform_driver cobalt_buttons_driver = {
.probe = cobalt_buttons_probe,
.remove = cobalt_buttons_remove,
.driver = {
.name = "Cobalt buttons",
.owner = THIS_MODULE,
},
};
module_platform_driver(cobalt_buttons_driver);

158
drivers/input/misc/da9052_onkey.c Normal file
View File

@@ -0,0 +1,158 @@
/*
* ON pin driver for Dialog DA9052 PMICs
*
* Copyright(c) 2012 Dialog Semiconductor Ltd.
*
* Author: David Dajun Chen <dchen@diasemi.com>
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by the
* Free Software Foundation; either version 2 of the License, or (at your
* option) any later version.
*/
#include <linux/init.h>
#include <linux/input.h>
#include <linux/module.h>
#include <linux/platform_device.h>
#include <linux/workqueue.h>
#include <linux/mfd/da9052/da9052.h>
#include <linux/mfd/da9052/reg.h>
struct da9052_onkey {
struct da9052 *da9052;
struct input_dev *input;
struct delayed_work work;
};
static void da9052_onkey_query(struct da9052_onkey *onkey)
{
int key_stat;
key_stat = da9052_reg_read(onkey->da9052, DA9052_EVENT_B_REG);
if (key_stat < 0) {
dev_err(onkey->da9052->dev,
"Failed to read onkey event %d\n", key_stat);
} else {
/*
* Since interrupt for deassertion of ONKEY pin is not
* generated, onkey event state determines the onkey
* button state.
*/
key_stat &= DA9052_EVENTB_ENONKEY;
input_report_key(onkey->input, KEY_POWER, key_stat);
input_sync(onkey->input);
}
/*
* Interrupt is generated only when the ONKEY pin is asserted.
* Hence the deassertion of the pin is simulated through work queue.
*/
if (key_stat)
schedule_delayed_work(&onkey->work, msecs_to_jiffies(50));
}
static void da9052_onkey_work(struct work_struct *work)
{
struct da9052_onkey *onkey = container_of(work, struct da9052_onkey,
work.work);
da9052_onkey_query(onkey);
}
static irqreturn_t da9052_onkey_irq(int irq, void *data)
{
struct da9052_onkey *onkey = data;
da9052_onkey_query(onkey);
return IRQ_HANDLED;
}
static int da9052_onkey_probe(struct platform_device *pdev)
{
struct da9052 *da9052 = dev_get_drvdata(pdev->dev.parent);
struct da9052_onkey *onkey;
struct input_dev *input_dev;
int error;
if (!da9052) {
dev_err(&pdev->dev, "Failed to get the driver's data\n");
return -EINVAL;
}
onkey = kzalloc(sizeof(*onkey), GFP_KERNEL);
input_dev = input_allocate_device();
if (!onkey || !input_dev) {
dev_err(&pdev->dev, "Failed to allocate memory\n");
error = -ENOMEM;
goto err_free_mem;
}
onkey->input = input_dev;
onkey->da9052 = da9052;
INIT_DELAYED_WORK(&onkey->work, da9052_onkey_work);
input_dev->name = "da9052-onkey";
input_dev->phys = "da9052-onkey/input0";
input_dev->dev.parent = &pdev->dev;
input_dev->evbit[0] = BIT_MASK(EV_KEY);
__set_bit(KEY_POWER, input_dev->keybit);
error = da9052_request_irq(onkey->da9052, DA9052_IRQ_NONKEY, "ONKEY",
da9052_onkey_irq, onkey);
if (error < 0) {
dev_err(onkey->da9052->dev,
"Failed to register ONKEY IRQ: %d\n", error);
goto err_free_mem;
}
error = input_register_device(onkey->input);
if (error) {
dev_err(&pdev->dev, "Unable to register input device, %d\n",
error);
goto err_free_irq;
}
platform_set_drvdata(pdev, onkey);
return 0;
err_free_irq:
da9052_free_irq(onkey->da9052, DA9052_IRQ_NONKEY, onkey);
cancel_delayed_work_sync(&onkey->work);
err_free_mem:
input_free_device(input_dev);
kfree(onkey);
return error;
}
static int da9052_onkey_remove(struct platform_device *pdev)
{
struct da9052_onkey *onkey = platform_get_drvdata(pdev);
da9052_free_irq(onkey->da9052, DA9052_IRQ_NONKEY, onkey);
cancel_delayed_work_sync(&onkey->work);
input_unregister_device(onkey->input);
kfree(onkey);
return 0;
}
static struct platform_driver da9052_onkey_driver = {
.probe = da9052_onkey_probe,
.remove = da9052_onkey_remove,
.driver = {
.name = "da9052-onkey",
.owner = THIS_MODULE,
},
};
module_platform_driver(da9052_onkey_driver);
MODULE_AUTHOR("David Dajun Chen <dchen@diasemi.com>");
MODULE_DESCRIPTION("Onkey driver for DA9052");
MODULE_LICENSE("GPL");
MODULE_ALIAS("platform:da9052-onkey");

171
drivers/input/misc/da9055_onkey.c Normal file
View File

@@ -0,0 +1,171 @@
/*
* ON pin driver for Dialog DA9055 PMICs
*
* Copyright(c) 2012 Dialog Semiconductor Ltd.
*
* Author: David Dajun Chen <dchen@diasemi.com>
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by the
* Free Software Foundation; either version 2 of the License, or (at your
* option) any later version.
*/
#include <linux/init.h>
#include <linux/input.h>
#include <linux/module.h>
#include <linux/platform_device.h>
#include <linux/mfd/da9055/core.h>
#include <linux/mfd/da9055/reg.h>
struct da9055_onkey {
struct da9055 *da9055;
struct input_dev *input;
struct delayed_work work;
};
static void da9055_onkey_query(struct da9055_onkey *onkey)
{
int key_stat;
key_stat = da9055_reg_read(onkey->da9055, DA9055_REG_STATUS_A);
if (key_stat < 0) {
dev_err(onkey->da9055->dev,
"Failed to read onkey event %d\n", key_stat);
} else {
key_stat &= DA9055_NOKEY_STS;
/*
* Onkey status bit is cleared when onkey button is relased.
*/
if (!key_stat) {
input_report_key(onkey->input, KEY_POWER, 0);
input_sync(onkey->input);
}
}
/*
* Interrupt is generated only when the ONKEY pin is asserted.
* Hence the deassertion of the pin is simulated through work queue.
*/
if (key_stat)
schedule_delayed_work(&onkey->work, msecs_to_jiffies(10));
}
static void da9055_onkey_work(struct work_struct *work)
{
struct da9055_onkey *onkey = container_of(work, struct da9055_onkey,
work.work);
da9055_onkey_query(onkey);
}
static irqreturn_t da9055_onkey_irq(int irq, void *data)
{
struct da9055_onkey *onkey = data;
input_report_key(onkey->input, KEY_POWER, 1);
input_sync(onkey->input);
da9055_onkey_query(onkey);
return IRQ_HANDLED;
}
static int da9055_onkey_probe(struct platform_device *pdev)
{
struct da9055 *da9055 = dev_get_drvdata(pdev->dev.parent);
struct da9055_onkey *onkey;
struct input_dev *input_dev;
int irq, err;
irq = platform_get_irq_byname(pdev, "ONKEY");
if (irq < 0) {
dev_err(&pdev->dev,
"Failed to get an IRQ for input device, %d\n", irq);
return -EINVAL;
}
onkey = devm_kzalloc(&pdev->dev, sizeof(*onkey), GFP_KERNEL);
if (!onkey) {
dev_err(&pdev->dev, "Failed to allocate memory\n");
return -ENOMEM;
}
input_dev = input_allocate_device();
if (!input_dev) {
dev_err(&pdev->dev, "Failed to allocate memory\n");
return -ENOMEM;
}
onkey->input = input_dev;
onkey->da9055 = da9055;
input_dev->name = "da9055-onkey";
input_dev->phys = "da9055-onkey/input0";
input_dev->dev.parent = &pdev->dev;
input_dev->evbit[0] = BIT_MASK(EV_KEY);
__set_bit(KEY_POWER, input_dev->keybit);
INIT_DELAYED_WORK(&onkey->work, da9055_onkey_work);
irq = regmap_irq_get_virq(da9055->irq_data, irq);
err = request_threaded_irq(irq, NULL, da9055_onkey_irq,
IRQF_TRIGGER_HIGH | IRQF_ONESHOT,
"ONKEY", onkey);
if (err < 0) {
dev_err(&pdev->dev,
"Failed to register ONKEY IRQ %d, error = %d\n",
irq, err);
goto err_free_input;
}
err = input_register_device(input_dev);
if (err) {
dev_err(&pdev->dev, "Unable to register input device, %d\n",
err);
goto err_free_irq;
}
platform_set_drvdata(pdev, onkey);
return 0;
err_free_irq:
free_irq(irq, onkey);
cancel_delayed_work_sync(&onkey->work);
err_free_input:
input_free_device(input_dev);
return err;
}
static int da9055_onkey_remove(struct platform_device *pdev)
{
struct da9055_onkey *onkey = platform_get_drvdata(pdev);
int irq = platform_get_irq_byname(pdev, "ONKEY");
irq = regmap_irq_get_virq(onkey->da9055->irq_data, irq);
free_irq(irq, onkey);
cancel_delayed_work_sync(&onkey->work);
input_unregister_device(onkey->input);
return 0;
}
static struct platform_driver da9055_onkey_driver = {
.probe = da9055_onkey_probe,
.remove = da9055_onkey_remove,
.driver = {
.name = "da9055-onkey",
.owner = THIS_MODULE,
},
};
module_platform_driver(da9055_onkey_driver);
MODULE_AUTHOR("David Dajun Chen <dchen@diasemi.com>");
MODULE_DESCRIPTION("Onkey driver for DA9055");
MODULE_LICENSE("GPL");
MODULE_ALIAS("platform:da9055-onkey");

273
drivers/input/misc/dm355evm_keys.c Normal file
View File

@@ -0,0 +1,273 @@
/*
* dm355evm_keys.c - support buttons and IR remote on DM355 EVM board
*
* Copyright (c) 2008 by David Brownell
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version
* 2 of the License, or (at your option) any later version.
*/
#include <linux/kernel.h>
#include <linux/init.h>
#include <linux/slab.h>
#include <linux/input.h>
#include <linux/input/sparse-keymap.h>
#include <linux/platform_device.h>
#include <linux/interrupt.h>
#include <linux/i2c/dm355evm_msp.h>
#include <linux/module.h>
/*
* The MSP430 firmware on the DM355 EVM monitors on-board pushbuttons
* and an IR receptor used for the remote control. When any key is
* pressed, or its autorepeat kicks in, an event is sent. This driver
* read those events from the small (32 event) queue and reports them.
*
* Note that physically there can only be one of these devices.
*
* This driver was tested with firmware revision A4.
*/
struct dm355evm_keys {
struct input_dev *input;
struct device *dev;
int irq;
};
/* These initial keycodes can be remapped */
static const struct key_entry dm355evm_keys[] = {
/*
* Pushbuttons on the EVM board ... note that the labels for these
* are SW10/SW11/etc on the PC board. The left/right orientation
* comes only from the firmware's documentation, and presumes the
* power connector is immediately in front of you and the IR sensor
* is to the right. (That is, rotate the board counter-clockwise
* by 90 degrees from the SW10/etc and "DM355 EVM" labels.)
*/
{ KE_KEY, 0x00d8, { KEY_OK } }, /* SW12 */
{ KE_KEY, 0x00b8, { KEY_UP } }, /* SW13 */
{ KE_KEY, 0x00e8, { KEY_DOWN } }, /* SW11 */
{ KE_KEY, 0x0078, { KEY_LEFT } }, /* SW14 */
{ KE_KEY, 0x00f0, { KEY_RIGHT } }, /* SW10 */
/*
* IR buttons ... codes assigned to match the universal remote
* provided with the EVM (Philips PM4S) using DVD code 0020.
*
* These event codes match firmware documentation, but other
* remote controls could easily send more RC5-encoded events.
* The PM4S manual was used in several cases to help select
* a keycode reflecting the intended usage.
*
* RC5 codes are 14 bits, with two start bits (0x3 prefix)
* and a toggle bit (masked out below).
*/
{ KE_KEY, 0x300c, { KEY_POWER } }, /* NOTE: docs omit this */
{ KE_KEY, 0x3000, { KEY_NUMERIC_0 } },
{ KE_KEY, 0x3001, { KEY_NUMERIC_1 } },
{ KE_KEY, 0x3002, { KEY_NUMERIC_2 } },
{ KE_KEY, 0x3003, { KEY_NUMERIC_3 } },
{ KE_KEY, 0x3004, { KEY_NUMERIC_4 } },
{ KE_KEY, 0x3005, { KEY_NUMERIC_5 } },
{ KE_KEY, 0x3006, { KEY_NUMERIC_6 } },
{ KE_KEY, 0x3007, { KEY_NUMERIC_7 } },
{ KE_KEY, 0x3008, { KEY_NUMERIC_8 } },
{ KE_KEY, 0x3009, { KEY_NUMERIC_9 } },
{ KE_KEY, 0x3022, { KEY_ENTER } },
{ KE_KEY, 0x30ec, { KEY_MODE } }, /* "tv/vcr/..." */
{ KE_KEY, 0x300f, { KEY_SELECT } }, /* "info" */
{ KE_KEY, 0x3020, { KEY_CHANNELUP } }, /* "up" */
{ KE_KEY, 0x302e, { KEY_MENU } }, /* "in/out" */
{ KE_KEY, 0x3011, { KEY_VOLUMEDOWN } }, /* "left" */
{ KE_KEY, 0x300d, { KEY_MUTE } }, /* "ok" */
{ KE_KEY, 0x3010, { KEY_VOLUMEUP } }, /* "right" */
{ KE_KEY, 0x301e, { KEY_SUBTITLE } }, /* "cc" */
{ KE_KEY, 0x3021, { KEY_CHANNELDOWN } },/* "down" */
{ KE_KEY, 0x3022, { KEY_PREVIOUS } },
{ KE_KEY, 0x3026, { KEY_SLEEP } },
{ KE_KEY, 0x3172, { KEY_REWIND } }, /* NOTE: docs wrongly say 0x30ca */
{ KE_KEY, 0x3175, { KEY_PLAY } },
{ KE_KEY, 0x3174, { KEY_FASTFORWARD } },
{ KE_KEY, 0x3177, { KEY_RECORD } },
{ KE_KEY, 0x3176, { KEY_STOP } },
{ KE_KEY, 0x3169, { KEY_PAUSE } },
};
/*
* Because we communicate with the MSP430 using I2C, and all I2C calls
* in Linux sleep, we use a threaded IRQ handler. The IRQ itself is
* active low, but we go through the GPIO controller so we can trigger
* on falling edges and not worry about enabling/disabling the IRQ in
* the keypress handling path.
*/
static irqreturn_t dm355evm_keys_irq(int irq, void *_keys)
{
static u16 last_event;
struct dm355evm_keys *keys = _keys;
const struct key_entry *ke;
unsigned int keycode;
int status;
u16 event;
/* For simplicity we ignore INPUT_COUNT and just read
* events until we get the "queue empty" indicator.
* Reading INPUT_LOW decrements the count.
*/
for (;;) {
status = dm355evm_msp_read(DM355EVM_MSP_INPUT_HIGH);
if (status < 0) {
dev_dbg(keys->dev, "input high err %d\n",
status);
break;
}
event = status << 8;
status = dm355evm_msp_read(DM355EVM_MSP_INPUT_LOW);
if (status < 0) {
dev_dbg(keys->dev, "input low err %d\n",
status);
break;
}
event |= status;
if (event == 0xdead)
break;
/* Press and release a button: two events, same code.
* Press and hold (autorepeat), then release: N events
* (N > 2), same code. For RC5 buttons the toggle bits
* distinguish (for example) "1-autorepeat" from "1 1";
* but PCB buttons don't support that bit.
*
* So we must synthesize release events. We do that by
* mapping events to a press/release event pair; then
* to avoid adding extra events, skip the second event
* of each pair.
*/
if (event == last_event) {
last_event = 0;
continue;
}
last_event = event;
/* ignore the RC5 toggle bit */
event &= ~0x0800;
/* find the key, or report it as unknown */
ke = sparse_keymap_entry_from_scancode(keys->input, event);
keycode = ke ? ke->keycode : KEY_UNKNOWN;
dev_dbg(keys->dev,
"input event 0x%04x--> keycode %d\n",
event, keycode);
/* report press + release */
input_report_key(keys->input, keycode, 1);
input_sync(keys->input);
input_report_key(keys->input, keycode, 0);
input_sync(keys->input);
}
return IRQ_HANDLED;
}
/*----------------------------------------------------------------------*/
static int dm355evm_keys_probe(struct platform_device *pdev)
{
struct dm355evm_keys *keys;
struct input_dev *input;
int status;
/* allocate instance struct and input dev */
keys = kzalloc(sizeof *keys, GFP_KERNEL);
input = input_allocate_device();
if (!keys || !input) {
status = -ENOMEM;
goto fail1;
}
keys->dev = &pdev->dev;
keys->input = input;
/* set up "threaded IRQ handler" */
status = platform_get_irq(pdev, 0);
if (status < 0)
goto fail1;
keys->irq = status;
input_set_drvdata(input, keys);
input->name = "DM355 EVM Controls";
input->phys = "dm355evm/input0";
input->dev.parent = &pdev->dev;
input->id.bustype = BUS_I2C;
input->id.product = 0x0355;
input->id.version = dm355evm_msp_read(DM355EVM_MSP_FIRMREV);
status = sparse_keymap_setup(input, dm355evm_keys, NULL);
if (status)
goto fail1;
/* REVISIT: flush the event queue? */
status = request_threaded_irq(keys->irq, NULL, dm355evm_keys_irq,
IRQF_TRIGGER_FALLING | IRQF_ONESHOT,
dev_name(&pdev->dev), keys);
if (status < 0)
goto fail2;
/* register */
status = input_register_device(input);
if (status < 0)
goto fail3;
platform_set_drvdata(pdev, keys);
return 0;
fail3:
free_irq(keys->irq, keys);
fail2:
sparse_keymap_free(input);
fail1:
input_free_device(input);
kfree(keys);
dev_err(&pdev->dev, "can't register, err %d\n", status);
return status;
}
static int dm355evm_keys_remove(struct platform_device *pdev)
{
struct dm355evm_keys *keys = platform_get_drvdata(pdev);
free_irq(keys->irq, keys);
sparse_keymap_free(keys->input);
input_unregister_device(keys->input);
kfree(keys);
return 0;
}
/* REVISIT: add suspend/resume when DaVinci supports it. The IRQ should
* be able to wake up the system. When device_may_wakeup(&pdev->dev), call
* enable_irq_wake() on suspend, and disable_irq_wake() on resume.
*/
/*
* I2C is used to talk to the MSP430, but this platform device is
* exposed by an MFD driver that manages I2C communications.
*/
static struct platform_driver dm355evm_keys_driver = {
.probe = dm355evm_keys_probe,
.remove = dm355evm_keys_remove,
.driver = {
.owner = THIS_MODULE,
.name = "dm355evm_keys",
},
};
module_platform_driver(dm355evm_keys_driver);
MODULE_LICENSE("GPL");

288
drivers/input/misc/gp2ap002a00f.c Normal file
View File

@@ -0,0 +1,288 @@
/*
* Copyright (C) 2011 Sony Ericsson Mobile Communications Inc.
*
* Author: Courtney Cavin <courtney.cavin@sonyericsson.com>
* Prepared for up-stream by: Oskar Andero <oskar.andero@sonyericsson.com>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2, as
* published by the Free Software Foundation.
*/
#include <linux/i2c.h>
#include <linux/irq.h>
#include <linux/slab.h>
#include <linux/input.h>
#include <linux/module.h>
#include <linux/interrupt.h>
#include <linux/gpio.h>
#include <linux/delay.h>
#include <linux/input/gp2ap002a00f.h>
struct gp2a_data {
struct input_dev *input;
const struct gp2a_platform_data *pdata;
struct i2c_client *i2c_client;
};
enum gp2a_addr {
GP2A_ADDR_PROX = 0x0,
GP2A_ADDR_GAIN = 0x1,
GP2A_ADDR_HYS = 0x2,
GP2A_ADDR_CYCLE = 0x3,
GP2A_ADDR_OPMOD = 0x4,
GP2A_ADDR_CON = 0x6
};
enum gp2a_controls {
/* Software Shutdown control: 0 = shutdown, 1 = normal operation */
GP2A_CTRL_SSD = 0x01
};
static int gp2a_report(struct gp2a_data *dt)
{
int vo = gpio_get_value(dt->pdata->vout_gpio);
input_report_switch(dt->input, SW_FRONT_PROXIMITY, !vo);
input_sync(dt->input);
return 0;
}
static irqreturn_t gp2a_irq(int irq, void *handle)
{
struct gp2a_data *dt = handle;
gp2a_report(dt);
return IRQ_HANDLED;
}
static int gp2a_enable(struct gp2a_data *dt)
{
return i2c_smbus_write_byte_data(dt->i2c_client, GP2A_ADDR_OPMOD,
GP2A_CTRL_SSD);
}
static int gp2a_disable(struct gp2a_data *dt)
{
return i2c_smbus_write_byte_data(dt->i2c_client, GP2A_ADDR_OPMOD,
0x00);
}
static int gp2a_device_open(struct input_dev *dev)
{
struct gp2a_data *dt = input_get_drvdata(dev);
int error;
error = gp2a_enable(dt);
if (error < 0) {
dev_err(&dt->i2c_client->dev,
"unable to activate, err %d\n", error);
return error;
}
gp2a_report(dt);
return 0;
}
static void gp2a_device_close(struct input_dev *dev)
{
struct gp2a_data *dt = input_get_drvdata(dev);
int error;
error = gp2a_disable(dt);
if (error < 0)
dev_err(&dt->i2c_client->dev,
"unable to deactivate, err %d\n", error);
}
static int gp2a_initialize(struct gp2a_data *dt)
{
int error;
error = i2c_smbus_write_byte_data(dt->i2c_client, GP2A_ADDR_GAIN,
0x08);
if (error < 0)
return error;
error = i2c_smbus_write_byte_data(dt->i2c_client, GP2A_ADDR_HYS,
0xc2);
if (error < 0)
return error;
error = i2c_smbus_write_byte_data(dt->i2c_client, GP2A_ADDR_CYCLE,
0x04);
if (error < 0)
return error;
error = gp2a_disable(dt);
return error;
}
static int gp2a_probe(struct i2c_client *client,
const struct i2c_device_id *id)
{
const struct gp2a_platform_data *pdata = client->dev.platform_data;
struct gp2a_data *dt;
int error;
if (!pdata)
return -EINVAL;
if (pdata->hw_setup) {
error = pdata->hw_setup(client);
if (error < 0)
return error;
}
error = gpio_request_one(pdata->vout_gpio, GPIOF_IN, GP2A_I2C_NAME);
if (error)
goto err_hw_shutdown;
dt = kzalloc(sizeof(struct gp2a_data), GFP_KERNEL);
if (!dt) {
error = -ENOMEM;
goto err_free_gpio;
}
dt->pdata = pdata;
dt->i2c_client = client;
error = gp2a_initialize(dt);
if (error < 0)
goto err_free_mem;
dt->input = input_allocate_device();
if (!dt->input) {
error = -ENOMEM;
goto err_free_mem;
}
input_set_drvdata(dt->input, dt);
dt->input->open = gp2a_device_open;
dt->input->close = gp2a_device_close;
dt->input->name = GP2A_I2C_NAME;
dt->input->id.bustype = BUS_I2C;
dt->input->dev.parent = &client->dev;
input_set_capability(dt->input, EV_SW, SW_FRONT_PROXIMITY);
error = request_threaded_irq(client->irq, NULL, gp2a_irq,
IRQF_TRIGGER_RISING | IRQF_TRIGGER_FALLING |
IRQF_ONESHOT,
GP2A_I2C_NAME, dt);
if (error) {
dev_err(&client->dev, "irq request failed\n");
goto err_free_input_dev;
}
error = input_register_device(dt->input);
if (error) {
dev_err(&client->dev, "device registration failed\n");
goto err_free_irq;
}
device_init_wakeup(&client->dev, pdata->wakeup);
i2c_set_clientdata(client, dt);
return 0;
err_free_irq:
free_irq(client->irq, dt);
err_free_input_dev:
input_free_device(dt->input);
err_free_mem:
kfree(dt);
err_free_gpio:
gpio_free(pdata->vout_gpio);
err_hw_shutdown:
if (pdata->hw_shutdown)
pdata->hw_shutdown(client);
return error;
}
static int gp2a_remove(struct i2c_client *client)
{
struct gp2a_data *dt = i2c_get_clientdata(client);
const struct gp2a_platform_data *pdata = dt->pdata;
device_init_wakeup(&client->dev, false);
free_irq(client->irq, dt);
input_unregister_device(dt->input);
kfree(dt);
gpio_free(pdata->vout_gpio);
if (pdata->hw_shutdown)
pdata->hw_shutdown(client);
return 0;
}
#ifdef CONFIG_PM_SLEEP
static int gp2a_suspend(struct device *dev)
{
struct i2c_client *client = to_i2c_client(dev);
struct gp2a_data *dt = i2c_get_clientdata(client);
int retval = 0;
if (device_may_wakeup(&client->dev)) {
enable_irq_wake(client->irq);
} else {
mutex_lock(&dt->input->mutex);
if (dt->input->users)
retval = gp2a_disable(dt);
mutex_unlock(&dt->input->mutex);
}
return retval;
}
static int gp2a_resume(struct device *dev)
{
struct i2c_client *client = to_i2c_client(dev);
struct gp2a_data *dt = i2c_get_clientdata(client);
int retval = 0;
if (device_may_wakeup(&client->dev)) {
disable_irq_wake(client->irq);
} else {
mutex_lock(&dt->input->mutex);
if (dt->input->users)
retval = gp2a_enable(dt);
mutex_unlock(&dt->input->mutex);
}
return retval;
}
#endif
static SIMPLE_DEV_PM_OPS(gp2a_pm, gp2a_suspend, gp2a_resume);
static const struct i2c_device_id gp2a_i2c_id[] = {
{ GP2A_I2C_NAME, 0 },
{ }
};
static struct i2c_driver gp2a_i2c_driver = {
.driver = {
.name = GP2A_I2C_NAME,
.owner = THIS_MODULE,
.pm = &gp2a_pm,
},
.probe = gp2a_probe,
.remove = gp2a_remove,
.id_table = gp2a_i2c_id,
};
module_i2c_driver(gp2a_i2c_driver);
MODULE_AUTHOR("Courtney Cavin <courtney.cavin@sonyericsson.com>");
MODULE_DESCRIPTION("Sharp GP2AP002A00F I2C Proximity/Opto sensor driver");
MODULE_LICENSE("GPL v2");

213
drivers/input/misc/gpio_tilt_polled.c Normal file
View File

@@ -0,0 +1,213 @@
/*
* Driver for tilt switches connected via GPIO lines
* not capable of generating interrupts
*
* Copyright (C) 2011 Heiko Stuebner <heiko@sntech.de>
*
* based on: drivers/input/keyboard/gpio_keys_polled.c
*
* Copyright (C) 2007-2010 Gabor Juhos <juhosg@openwrt.org>
* Copyright (C) 2010 Nuno Goncalves <nunojpg@gmail.com>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*/
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/init.h>
#include <linux/slab.h>
#include <linux/input.h>
#include <linux/input-polldev.h>
#include <linux/ioport.h>
#include <linux/platform_device.h>
#include <linux/gpio.h>
#include <linux/input/gpio_tilt.h>
#define DRV_NAME "gpio-tilt-polled"
struct gpio_tilt_polled_dev {
struct input_polled_dev *poll_dev;
struct device *dev;
const struct gpio_tilt_platform_data *pdata;
int last_state;
int threshold;
int count;
};
static void gpio_tilt_polled_poll(struct input_polled_dev *dev)
{
struct gpio_tilt_polled_dev *tdev = dev->private;
const struct gpio_tilt_platform_data *pdata = tdev->pdata;
struct input_dev *input = dev->input;
struct gpio_tilt_state *tilt_state = NULL;
int state, i;
if (tdev->count < tdev->threshold) {
tdev->count++;
} else {
state = 0;
for (i = 0; i < pdata->nr_gpios; i++)
state |= (!!gpio_get_value(pdata->gpios[i].gpio) << i);
if (state != tdev->last_state) {
for (i = 0; i < pdata->nr_states; i++)
if (pdata->states[i].gpios == state)
tilt_state = &pdata->states[i];
if (tilt_state) {
for (i = 0; i < pdata->nr_axes; i++)
input_report_abs(input,
pdata->axes[i].axis,
tilt_state->axes[i]);
input_sync(input);
}
tdev->count = 0;
tdev->last_state = state;
}
}
}
static void gpio_tilt_polled_open(struct input_polled_dev *dev)
{
struct gpio_tilt_polled_dev *tdev = dev->private;
const struct gpio_tilt_platform_data *pdata = tdev->pdata;
if (pdata->enable)
pdata->enable(tdev->dev);
/* report initial state of the axes */
tdev->last_state = -1;
tdev->count = tdev->threshold;
gpio_tilt_polled_poll(tdev->poll_dev);
}
static void gpio_tilt_polled_close(struct input_polled_dev *dev)
{
struct gpio_tilt_polled_dev *tdev = dev->private;
const struct gpio_tilt_platform_data *pdata = tdev->pdata;
if (pdata->disable)
pdata->disable(tdev->dev);
}
static int gpio_tilt_polled_probe(struct platform_device *pdev)
{
const struct gpio_tilt_platform_data *pdata = pdev->dev.platform_data;
struct device *dev = &pdev->dev;
struct gpio_tilt_polled_dev *tdev;
struct input_polled_dev *poll_dev;
struct input_dev *input;
int error, i;
if (!pdata || !pdata->poll_interval)
return -EINVAL;
tdev = kzalloc(sizeof(struct gpio_tilt_polled_dev), GFP_KERNEL);
if (!tdev) {
dev_err(dev, "no memory for private data\n");
return -ENOMEM;
}
error = gpio_request_array(pdata->gpios, pdata->nr_gpios);
if (error) {
dev_err(dev,
"Could not request tilt GPIOs: %d\n", error);
goto err_free_tdev;
}
poll_dev = input_allocate_polled_device();
if (!poll_dev) {
dev_err(dev, "no memory for polled device\n");
error = -ENOMEM;
goto err_free_gpios;
}
poll_dev->private = tdev;
poll_dev->poll = gpio_tilt_polled_poll;
poll_dev->poll_interval = pdata->poll_interval;
poll_dev->open = gpio_tilt_polled_open;
poll_dev->close = gpio_tilt_polled_close;
input = poll_dev->input;
input->name = pdev->name;
input->phys = DRV_NAME"/input0";
input->dev.parent = &pdev->dev;
input->id.bustype = BUS_HOST;
input->id.vendor = 0x0001;
input->id.product = 0x0001;
input->id.version = 0x0100;
__set_bit(EV_ABS, input->evbit);
for (i = 0; i < pdata->nr_axes; i++)
input_set_abs_params(input, pdata->axes[i].axis,
pdata->axes[i].min, pdata->axes[i].max,
pdata->axes[i].fuzz, pdata->axes[i].flat);
tdev->threshold = DIV_ROUND_UP(pdata->debounce_interval,
pdata->poll_interval);
tdev->poll_dev = poll_dev;
tdev->dev = dev;
tdev->pdata = pdata;
error = input_register_polled_device(poll_dev);
if (error) {
dev_err(dev, "unable to register polled device, err=%d\n",
error);
goto err_free_polldev;
}
platform_set_drvdata(pdev, tdev);
return 0;
err_free_polldev:
input_free_polled_device(poll_dev);
err_free_gpios:
gpio_free_array(pdata->gpios, pdata->nr_gpios);
err_free_tdev:
kfree(tdev);
return error;
}
static int gpio_tilt_polled_remove(struct platform_device *pdev)
{
struct gpio_tilt_polled_dev *tdev = platform_get_drvdata(pdev);
const struct gpio_tilt_platform_data *pdata = tdev->pdata;
platform_set_drvdata(pdev, NULL);
input_unregister_polled_device(tdev->poll_dev);
input_free_polled_device(tdev->poll_dev);
gpio_free_array(pdata->gpios, pdata->nr_gpios);
kfree(tdev);
return 0;
}
static struct platform_driver gpio_tilt_polled_driver = {
.probe = gpio_tilt_polled_probe,
.remove = gpio_tilt_polled_remove,
.driver = {
.name = DRV_NAME,
.owner = THIS_MODULE,
},
};
module_platform_driver(gpio_tilt_polled_driver);
MODULE_LICENSE("GPL v2");
MODULE_AUTHOR("Heiko Stuebner <heiko@sntech.de>");
MODULE_DESCRIPTION("Polled GPIO tilt driver");
MODULE_ALIAS("platform:" DRV_NAME);

730
drivers/input/misc/hp_sdc_rtc.c Normal file
View File

@@ -0,0 +1,730 @@
/*
* HP i8042 SDC + MSM-58321 BBRTC driver.
*
* Copyright (c) 2001 Brian S. Julin
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions, and the following disclaimer,
* without modification.
* 2. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* Alternatively, this software may be distributed under the terms of the
* GNU General Public License ("GPL").
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR
* ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
*
* References:
* System Device Controller Microprocessor Firmware Theory of Operation
* for Part Number 1820-4784 Revision B. Dwg No. A-1820-4784-2
* efirtc.c by Stephane Eranian/Hewlett Packard
*
*/
#include <linux/hp_sdc.h>
#include <linux/errno.h>
#include <linux/types.h>
#include <linux/init.h>
#include <linux/module.h>
#include <linux/time.h>
#include <linux/miscdevice.h>
#include <linux/proc_fs.h>
#include <linux/seq_file.h>
#include <linux/poll.h>
#include <linux/rtc.h>
#include <linux/mutex.h>
#include <linux/semaphore.h>
MODULE_AUTHOR("Brian S. Julin <bri@calyx.com>");
MODULE_DESCRIPTION("HP i8042 SDC + MSM-58321 RTC Driver");
MODULE_LICENSE("Dual BSD/GPL");
#define RTC_VERSION "1.10d"
static DEFINE_MUTEX(hp_sdc_rtc_mutex);
static unsigned long epoch = 2000;
static struct semaphore i8042tregs;
static hp_sdc_irqhook hp_sdc_rtc_isr;
static struct fasync_struct *hp_sdc_rtc_async_queue;
static DECLARE_WAIT_QUEUE_HEAD(hp_sdc_rtc_wait);
static ssize_t hp_sdc_rtc_read(struct file *file, char __user *buf,
size_t count, loff_t *ppos);
static long hp_sdc_rtc_unlocked_ioctl(struct file *file,
unsigned int cmd, unsigned long arg);
static unsigned int hp_sdc_rtc_poll(struct file *file, poll_table *wait);
static int hp_sdc_rtc_open(struct inode *inode, struct file *file);
static int hp_sdc_rtc_fasync (int fd, struct file *filp, int on);
static void hp_sdc_rtc_isr (int irq, void *dev_id,
uint8_t status, uint8_t data)
{
return;
}
static int hp_sdc_rtc_do_read_bbrtc (struct rtc_time *rtctm)
{
struct semaphore tsem;
hp_sdc_transaction t;
uint8_t tseq[91];
int i;
i = 0;
while (i < 91) {
tseq[i++] = HP_SDC_ACT_DATAREG |
HP_SDC_ACT_POSTCMD | HP_SDC_ACT_DATAIN;
tseq[i++] = 0x01; /* write i8042[0x70] */
tseq[i] = i / 7; /* BBRTC reg address */
i++;
tseq[i++] = HP_SDC_CMD_DO_RTCR; /* Trigger command */
tseq[i++] = 2; /* expect 1 stat/dat pair back. */
i++; i++; /* buffer for stat/dat pair */
}
tseq[84] |= HP_SDC_ACT_SEMAPHORE;
t.endidx = 91;
t.seq = tseq;
t.act.semaphore = &tsem;
sema_init(&tsem, 0);
if (hp_sdc_enqueue_transaction(&t)) return -1;
/* Put ourselves to sleep for results. */
if (WARN_ON(down_interruptible(&tsem)))
return -1;
/* Check for nonpresence of BBRTC */
if (!((tseq[83] | tseq[90] | tseq[69] | tseq[76] |
tseq[55] | tseq[62] | tseq[34] | tseq[41] |
tseq[20] | tseq[27] | tseq[6] | tseq[13]) & 0x0f))
return -1;
memset(rtctm, 0, sizeof(struct rtc_time));
rtctm->tm_year = (tseq[83] & 0x0f) + (tseq[90] & 0x0f) * 10;
rtctm->tm_mon = (tseq[69] & 0x0f) + (tseq[76] & 0x0f) * 10;
rtctm->tm_mday = (tseq[55] & 0x0f) + (tseq[62] & 0x0f) * 10;
rtctm->tm_wday = (tseq[48] & 0x0f);
rtctm->tm_hour = (tseq[34] & 0x0f) + (tseq[41] & 0x0f) * 10;
rtctm->tm_min = (tseq[20] & 0x0f) + (tseq[27] & 0x0f) * 10;
rtctm->tm_sec = (tseq[6] & 0x0f) + (tseq[13] & 0x0f) * 10;
return 0;
}
static int hp_sdc_rtc_read_bbrtc (struct rtc_time *rtctm)
{
struct rtc_time tm, tm_last;
int i = 0;
/* MSM-58321 has no read latch, so must read twice and compare. */
if (hp_sdc_rtc_do_read_bbrtc(&tm_last)) return -1;
if (hp_sdc_rtc_do_read_bbrtc(&tm)) return -1;
while (memcmp(&tm, &tm_last, sizeof(struct rtc_time))) {
if (i++ > 4) return -1;
memcpy(&tm_last, &tm, sizeof(struct rtc_time));
if (hp_sdc_rtc_do_read_bbrtc(&tm)) return -1;
}
memcpy(rtctm, &tm, sizeof(struct rtc_time));
return 0;
}
static int64_t hp_sdc_rtc_read_i8042timer (uint8_t loadcmd, int numreg)
{
hp_sdc_transaction t;
uint8_t tseq[26] = {
HP_SDC_ACT_PRECMD | HP_SDC_ACT_POSTCMD | HP_SDC_ACT_DATAIN,
0,
HP_SDC_CMD_READ_T1, 2, 0, 0,
HP_SDC_ACT_POSTCMD | HP_SDC_ACT_DATAIN,
HP_SDC_CMD_READ_T2, 2, 0, 0,
HP_SDC_ACT_POSTCMD | HP_SDC_ACT_DATAIN,
HP_SDC_CMD_READ_T3, 2, 0, 0,
HP_SDC_ACT_POSTCMD | HP_SDC_ACT_DATAIN,
HP_SDC_CMD_READ_T4, 2, 0, 0,
HP_SDC_ACT_POSTCMD | HP_SDC_ACT_DATAIN,
HP_SDC_CMD_READ_T5, 2, 0, 0
};
t.endidx = numreg * 5;
tseq[1] = loadcmd;
tseq[t.endidx - 4] |= HP_SDC_ACT_SEMAPHORE; /* numreg assumed > 1 */
t.seq = tseq;
t.act.semaphore = &i8042tregs;
/* Sleep if output regs in use. */
if (WARN_ON(down_interruptible(&i8042tregs)))
return -1;
if (hp_sdc_enqueue_transaction(&t)) return -1;
/* Sleep until results come back. */
if (WARN_ON(down_interruptible(&i8042tregs)))
return -1;
up(&i8042tregs);
return (tseq[5] |
((uint64_t)(tseq[10]) << 8) | ((uint64_t)(tseq[15]) << 16) |
((uint64_t)(tseq[20]) << 24) | ((uint64_t)(tseq[25]) << 32));
}
/* Read the i8042 real-time clock */
static inline int hp_sdc_rtc_read_rt(struct timeval *res) {
int64_t raw;
uint32_t tenms;
unsigned int days;
raw = hp_sdc_rtc_read_i8042timer(HP_SDC_CMD_LOAD_RT, 5);
if (raw < 0) return -1;
tenms = (uint32_t)raw & 0xffffff;
days = (unsigned int)(raw >> 24) & 0xffff;
res->tv_usec = (suseconds_t)(tenms % 100) * 10000;
res->tv_sec = (time_t)(tenms / 100) + days * 86400;
return 0;
}
/* Read the i8042 fast handshake timer */
static inline int hp_sdc_rtc_read_fhs(struct timeval *res) {
int64_t raw;
unsigned int tenms;
raw = hp_sdc_rtc_read_i8042timer(HP_SDC_CMD_LOAD_FHS, 2);
if (raw < 0) return -1;
tenms = (unsigned int)raw & 0xffff;
res->tv_usec = (suseconds_t)(tenms % 100) * 10000;
res->tv_sec = (time_t)(tenms / 100);
return 0;
}
/* Read the i8042 match timer (a.k.a. alarm) */
static inline int hp_sdc_rtc_read_mt(struct timeval *res) {
int64_t raw;
uint32_t tenms;
raw = hp_sdc_rtc_read_i8042timer(HP_SDC_CMD_LOAD_MT, 3);
if (raw < 0) return -1;
tenms = (uint32_t)raw & 0xffffff;
res->tv_usec = (suseconds_t)(tenms % 100) * 10000;
res->tv_sec = (time_t)(tenms / 100);
return 0;
}
/* Read the i8042 delay timer */
static inline int hp_sdc_rtc_read_dt(struct timeval *res) {
int64_t raw;
uint32_t tenms;
raw = hp_sdc_rtc_read_i8042timer(HP_SDC_CMD_LOAD_DT, 3);
if (raw < 0) return -1;
tenms = (uint32_t)raw & 0xffffff;
res->tv_usec = (suseconds_t)(tenms % 100) * 10000;
res->tv_sec = (time_t)(tenms / 100);
return 0;
}
/* Read the i8042 cycle timer (a.k.a. periodic) */
static inline int hp_sdc_rtc_read_ct(struct timeval *res) {
int64_t raw;
uint32_t tenms;
raw = hp_sdc_rtc_read_i8042timer(HP_SDC_CMD_LOAD_CT, 3);
if (raw < 0) return -1;
tenms = (uint32_t)raw & 0xffffff;
res->tv_usec = (suseconds_t)(tenms % 100) * 10000;
res->tv_sec = (time_t)(tenms / 100);
return 0;
}
#if 0 /* not used yet */
/* Set the i8042 real-time clock */
static int hp_sdc_rtc_set_rt (struct timeval *setto)
{
uint32_t tenms;
unsigned int days;
hp_sdc_transaction t;
uint8_t tseq[11] = {
HP_SDC_ACT_PRECMD | HP_SDC_ACT_DATAOUT,
HP_SDC_CMD_SET_RTMS, 3, 0, 0, 0,
HP_SDC_ACT_PRECMD | HP_SDC_ACT_DATAOUT,
HP_SDC_CMD_SET_RTD, 2, 0, 0
};
t.endidx = 10;
if (0xffff < setto->tv_sec / 86400) return -1;
days = setto->tv_sec / 86400;
if (0xffff < setto->tv_usec / 1000000 / 86400) return -1;
days += ((setto->tv_sec % 86400) + setto->tv_usec / 1000000) / 86400;
if (days > 0xffff) return -1;
if (0xffffff < setto->tv_sec) return -1;
tenms = setto->tv_sec * 100;
if (0xffffff < setto->tv_usec / 10000) return -1;
tenms += setto->tv_usec / 10000;
if (tenms > 0xffffff) return -1;
tseq[3] = (uint8_t)(tenms & 0xff);
tseq[4] = (uint8_t)((tenms >> 8) & 0xff);
tseq[5] = (uint8_t)((tenms >> 16) & 0xff);
tseq[9] = (uint8_t)(days & 0xff);
tseq[10] = (uint8_t)((days >> 8) & 0xff);
t.seq = tseq;
if (hp_sdc_enqueue_transaction(&t)) return -1;
return 0;
}
/* Set the i8042 fast handshake timer */
static int hp_sdc_rtc_set_fhs (struct timeval *setto)
{
uint32_t tenms;
hp_sdc_transaction t;
uint8_t tseq[5] = {
HP_SDC_ACT_PRECMD | HP_SDC_ACT_DATAOUT,
HP_SDC_CMD_SET_FHS, 2, 0, 0
};
t.endidx = 4;
if (0xffff < setto->tv_sec) return -1;
tenms = setto->tv_sec * 100;
if (0xffff < setto->tv_usec / 10000) return -1;
tenms += setto->tv_usec / 10000;
if (tenms > 0xffff) return -1;
tseq[3] = (uint8_t)(tenms & 0xff);
tseq[4] = (uint8_t)((tenms >> 8) & 0xff);
t.seq = tseq;
if (hp_sdc_enqueue_transaction(&t)) return -1;
return 0;
}
/* Set the i8042 match timer (a.k.a. alarm) */
#define hp_sdc_rtc_set_mt (setto) \
hp_sdc_rtc_set_i8042timer(setto, HP_SDC_CMD_SET_MT)
/* Set the i8042 delay timer */
#define hp_sdc_rtc_set_dt (setto) \
hp_sdc_rtc_set_i8042timer(setto, HP_SDC_CMD_SET_DT)
/* Set the i8042 cycle timer (a.k.a. periodic) */
#define hp_sdc_rtc_set_ct (setto) \
hp_sdc_rtc_set_i8042timer(setto, HP_SDC_CMD_SET_CT)
/* Set one of the i8042 3-byte wide timers */
static int hp_sdc_rtc_set_i8042timer (struct timeval *setto, uint8_t setcmd)
{
uint32_t tenms;
hp_sdc_transaction t;
uint8_t tseq[6] = {
HP_SDC_ACT_PRECMD | HP_SDC_ACT_DATAOUT,
0, 3, 0, 0, 0
};
t.endidx = 6;
if (0xffffff < setto->tv_sec) return -1;
tenms = setto->tv_sec * 100;
if (0xffffff < setto->tv_usec / 10000) return -1;
tenms += setto->tv_usec / 10000;
if (tenms > 0xffffff) return -1;
tseq[1] = setcmd;
tseq[3] = (uint8_t)(tenms & 0xff);
tseq[4] = (uint8_t)((tenms >> 8) & 0xff);
tseq[5] = (uint8_t)((tenms >> 16) & 0xff);
t.seq = tseq;
if (hp_sdc_enqueue_transaction(&t)) {
return -1;
}
return 0;
}
#endif
static ssize_t hp_sdc_rtc_read(struct file *file, char __user *buf,
size_t count, loff_t *ppos) {
ssize_t retval;
if (count < sizeof(unsigned long))
return -EINVAL;
retval = put_user(68, (unsigned long __user *)buf);
return retval;
}
static unsigned int hp_sdc_rtc_poll(struct file *file, poll_table *wait)
{
unsigned long l;
l = 0;
if (l != 0)
return POLLIN | POLLRDNORM;
return 0;
}
static int hp_sdc_rtc_open(struct inode *inode, struct file *file)
{
return 0;
}
static int hp_sdc_rtc_fasync (int fd, struct file *filp, int on)
{
return fasync_helper (fd, filp, on, &hp_sdc_rtc_async_queue);
}
static int hp_sdc_rtc_proc_show(struct seq_file *m, void *v)
{
#define YN(bit) ("no")
#define NY(bit) ("yes")
struct rtc_time tm;
struct timeval tv;
memset(&tm, 0, sizeof(struct rtc_time));
if (hp_sdc_rtc_read_bbrtc(&tm)) {
seq_puts(m, "BBRTC\t\t: READ FAILED!\n");
} else {
seq_printf(m,
"rtc_time\t: %02d:%02d:%02d\n"
"rtc_date\t: %04d-%02d-%02d\n"
"rtc_epoch\t: %04lu\n",
tm.tm_hour, tm.tm_min, tm.tm_sec,
tm.tm_year + 1900, tm.tm_mon + 1,
tm.tm_mday, epoch);
}
if (hp_sdc_rtc_read_rt(&tv)) {
seq_puts(m, "i8042 rtc\t: READ FAILED!\n");
} else {
seq_printf(m, "i8042 rtc\t: %ld.%02d seconds\n",
tv.tv_sec, (int)tv.tv_usec/1000);
}
if (hp_sdc_rtc_read_fhs(&tv)) {
seq_puts(m, "handshake\t: READ FAILED!\n");
} else {
seq_printf(m, "handshake\t: %ld.%02d seconds\n",
tv.tv_sec, (int)tv.tv_usec/1000);
}
if (hp_sdc_rtc_read_mt(&tv)) {
seq_puts(m, "alarm\t\t: READ FAILED!\n");
} else {
seq_printf(m, "alarm\t\t: %ld.%02d seconds\n",
tv.tv_sec, (int)tv.tv_usec/1000);
}
if (hp_sdc_rtc_read_dt(&tv)) {
seq_puts(m, "delay\t\t: READ FAILED!\n");
} else {
seq_printf(m, "delay\t\t: %ld.%02d seconds\n",
tv.tv_sec, (int)tv.tv_usec/1000);
}
if (hp_sdc_rtc_read_ct(&tv)) {
seq_puts(m, "periodic\t: READ FAILED!\n");
} else {
seq_printf(m, "periodic\t: %ld.%02d seconds\n",
tv.tv_sec, (int)tv.tv_usec/1000);
}
seq_printf(m,
"DST_enable\t: %s\n"
"BCD\t\t: %s\n"
"24hr\t\t: %s\n"
"square_wave\t: %s\n"
"alarm_IRQ\t: %s\n"
"update_IRQ\t: %s\n"
"periodic_IRQ\t: %s\n"
"periodic_freq\t: %ld\n"
"batt_status\t: %s\n",
YN(RTC_DST_EN),
NY(RTC_DM_BINARY),
YN(RTC_24H),
YN(RTC_SQWE),
YN(RTC_AIE),
YN(RTC_UIE),
YN(RTC_PIE),
1UL,
1 ? "okay" : "dead");
return 0;
#undef YN
#undef NY
}
static int hp_sdc_rtc_proc_open(struct inode *inode, struct file *file)
{
return single_open(file, hp_sdc_rtc_proc_show, NULL);
}
static const struct file_operations hp_sdc_rtc_proc_fops = {
.open = hp_sdc_rtc_proc_open,
.read = seq_read,
.llseek = seq_lseek,
.release = single_release,
};
static int hp_sdc_rtc_ioctl(struct file *file,
unsigned int cmd, unsigned long arg)
{
#if 1
return -EINVAL;
#else
struct rtc_time wtime;
struct timeval ttime;
int use_wtime = 0;
/* This needs major work. */
switch (cmd) {
case RTC_AIE_OFF: /* Mask alarm int. enab. bit */
case RTC_AIE_ON: /* Allow alarm interrupts. */
case RTC_PIE_OFF: /* Mask periodic int. enab. bit */
case RTC_PIE_ON: /* Allow periodic ints */
case RTC_UIE_ON: /* Allow ints for RTC updates. */
case RTC_UIE_OFF: /* Allow ints for RTC updates. */
{
/* We cannot mask individual user timers and we
cannot tell them apart when they occur, so it
would be disingenuous to succeed these IOCTLs */
return -EINVAL;
}
case RTC_ALM_READ: /* Read the present alarm time */
{
if (hp_sdc_rtc_read_mt(&ttime)) return -EFAULT;
if (hp_sdc_rtc_read_bbrtc(&wtime)) return -EFAULT;
wtime.tm_hour = ttime.tv_sec / 3600; ttime.tv_sec %= 3600;
wtime.tm_min = ttime.tv_sec / 60; ttime.tv_sec %= 60;
wtime.tm_sec = ttime.tv_sec;
break;
}
case RTC_IRQP_READ: /* Read the periodic IRQ rate. */
{
return put_user(hp_sdc_rtc_freq, (unsigned long *)arg);
}
case RTC_IRQP_SET: /* Set periodic IRQ rate. */
{
/*
* The max we can do is 100Hz.
*/
if ((arg < 1) || (arg > 100)) return -EINVAL;
ttime.tv_sec = 0;
ttime.tv_usec = 1000000 / arg;
if (hp_sdc_rtc_set_ct(&ttime)) return -EFAULT;
hp_sdc_rtc_freq = arg;
return 0;
}
case RTC_ALM_SET: /* Store a time into the alarm */
{
/*
* This expects a struct hp_sdc_rtc_time. Writing 0xff means
* "don't care" or "match all" for PC timers. The HP SDC
* does not support that perk, but it could be emulated fairly
* easily. Only the tm_hour, tm_min and tm_sec are used.
* We could do it with 10ms accuracy with the HP SDC, if the
* rtc interface left us a way to do that.
*/
struct hp_sdc_rtc_time alm_tm;
if (copy_from_user(&alm_tm, (struct hp_sdc_rtc_time*)arg,
sizeof(struct hp_sdc_rtc_time)))
return -EFAULT;
if (alm_tm.tm_hour > 23) return -EINVAL;
if (alm_tm.tm_min > 59) return -EINVAL;
if (alm_tm.tm_sec > 59) return -EINVAL;
ttime.sec = alm_tm.tm_hour * 3600 +
alm_tm.tm_min * 60 + alm_tm.tm_sec;
ttime.usec = 0;
if (hp_sdc_rtc_set_mt(&ttime)) return -EFAULT;
return 0;
}
case RTC_RD_TIME: /* Read the time/date from RTC */
{
if (hp_sdc_rtc_read_bbrtc(&wtime)) return -EFAULT;
break;
}
case RTC_SET_TIME: /* Set the RTC */
{
struct rtc_time hp_sdc_rtc_tm;
unsigned char mon, day, hrs, min, sec, leap_yr;
unsigned int yrs;
if (!capable(CAP_SYS_TIME))
return -EACCES;
if (copy_from_user(&hp_sdc_rtc_tm, (struct rtc_time *)arg,
sizeof(struct rtc_time)))
return -EFAULT;
yrs = hp_sdc_rtc_tm.tm_year + 1900;
mon = hp_sdc_rtc_tm.tm_mon + 1; /* tm_mon starts at zero */
day = hp_sdc_rtc_tm.tm_mday;
hrs = hp_sdc_rtc_tm.tm_hour;
min = hp_sdc_rtc_tm.tm_min;
sec = hp_sdc_rtc_tm.tm_sec;
if (yrs < 1970)
return -EINVAL;
leap_yr = ((!(yrs % 4) && (yrs % 100)) || !(yrs % 400));
if ((mon > 12) || (day == 0))
return -EINVAL;
if (day > (days_in_mo[mon] + ((mon == 2) && leap_yr)))
return -EINVAL;
if ((hrs >= 24) || (min >= 60) || (sec >= 60))
return -EINVAL;
if ((yrs -= eH) > 255) /* They are unsigned */
return -EINVAL;
return 0;
}
case RTC_EPOCH_READ: /* Read the epoch. */
{
return put_user (epoch, (unsigned long *)arg);
}
case RTC_EPOCH_SET: /* Set the epoch. */
{
/*
* There were no RTC clocks before 1900.
*/
if (arg < 1900)
return -EINVAL;
if (!capable(CAP_SYS_TIME))
return -EACCES;
epoch = arg;
return 0;
}
default:
return -EINVAL;
}
return copy_to_user((void *)arg, &wtime, sizeof wtime) ? -EFAULT : 0;
#endif
}
static long hp_sdc_rtc_unlocked_ioctl(struct file *file,
unsigned int cmd, unsigned long arg)
{
int ret;
mutex_lock(&hp_sdc_rtc_mutex);
ret = hp_sdc_rtc_ioctl(file, cmd, arg);
mutex_unlock(&hp_sdc_rtc_mutex);
return ret;
}
static const struct file_operations hp_sdc_rtc_fops = {
.owner = THIS_MODULE,
.llseek = no_llseek,
.read = hp_sdc_rtc_read,
.poll = hp_sdc_rtc_poll,
.unlocked_ioctl = hp_sdc_rtc_unlocked_ioctl,
.open = hp_sdc_rtc_open,
.fasync = hp_sdc_rtc_fasync,
};
static struct miscdevice hp_sdc_rtc_dev = {
.minor = RTC_MINOR,
.name = "rtc_HIL",
.fops = &hp_sdc_rtc_fops
};
static int __init hp_sdc_rtc_init(void)
{
int ret;
#ifdef __mc68000__
if (!MACH_IS_HP300)
return -ENODEV;
#endif
sema_init(&i8042tregs, 1);
if ((ret = hp_sdc_request_timer_irq(&hp_sdc_rtc_isr)))
return ret;
if (misc_register(&hp_sdc_rtc_dev) != 0)
printk(KERN_INFO "Could not register misc. dev for i8042 rtc\n");
proc_create("driver/rtc", 0, NULL, &hp_sdc_rtc_proc_fops);
printk(KERN_INFO "HP i8042 SDC + MSM-58321 RTC support loaded "
"(RTC v " RTC_VERSION ")\n");
return 0;
}
static void __exit hp_sdc_rtc_exit(void)
{
remove_proc_entry ("driver/rtc", NULL);
misc_deregister(&hp_sdc_rtc_dev);
hp_sdc_release_timer_irq(hp_sdc_rtc_isr);
printk(KERN_INFO "HP i8042 SDC + MSM-58321 RTC support unloaded\n");
}
module_init(hp_sdc_rtc_init);
module_exit(hp_sdc_rtc_exit);

1901
drivers/input/misc/ims-pcu.c Normal file
View File

File diff suppressed because it is too large Load Diff

172
drivers/input/misc/ixp4xx-beeper.c Normal file
View File

@@ -0,0 +1,172 @@
/*
* Generic IXP4xx beeper driver
*
* Copyright (C) 2005 Tower Technologies
*
* based on nslu2-io.c
* Copyright (C) 2004 Karen Spearel
*
* Author: Alessandro Zummo <a.zummo@towertech.it>
* Maintainers: http://www.nslu2-linux.org/
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*
*/
#include <linux/module.h>
#include <linux/input.h>
#include <linux/delay.h>
#include <linux/platform_device.h>
#include <linux/interrupt.h>
#include <mach/hardware.h>
MODULE_AUTHOR("Alessandro Zummo <a.zummo@towertech.it>");
MODULE_DESCRIPTION("ixp4xx beeper driver");
MODULE_LICENSE("GPL");
MODULE_ALIAS("platform:ixp4xx-beeper");
static DEFINE_SPINLOCK(beep_lock);
static void ixp4xx_spkr_control(unsigned int pin, unsigned int count)
{
unsigned long flags;
spin_lock_irqsave(&beep_lock, flags);
if (count) {
gpio_line_config(pin, IXP4XX_GPIO_OUT);
gpio_line_set(pin, IXP4XX_GPIO_LOW);
*IXP4XX_OSRT2 = (count & ~IXP4XX_OST_RELOAD_MASK) | IXP4XX_OST_ENABLE;
} else {
gpio_line_config(pin, IXP4XX_GPIO_IN);
gpio_line_set(pin, IXP4XX_GPIO_HIGH);
*IXP4XX_OSRT2 = 0;
}
spin_unlock_irqrestore(&beep_lock, flags);
}
static int ixp4xx_spkr_event(struct input_dev *dev, unsigned int type, unsigned int code, int value)
{
unsigned int pin = (unsigned int) input_get_drvdata(dev);
unsigned int count = 0;
if (type != EV_SND)
return -1;
switch (code) {
case SND_BELL:
if (value)
value = 1000;
case SND_TONE:
break;
default:
return -1;
}
if (value > 20 && value < 32767)
count = (IXP4XX_TIMER_FREQ / (value * 4)) - 1;
ixp4xx_spkr_control(pin, count);
return 0;
}
static irqreturn_t ixp4xx_spkr_interrupt(int irq, void *dev_id)
{
/* clear interrupt */
*IXP4XX_OSST = IXP4XX_OSST_TIMER_2_PEND;
/* flip the beeper output */
*IXP4XX_GPIO_GPOUTR ^= (1 << (unsigned int) dev_id);
return IRQ_HANDLED;
}
static int ixp4xx_spkr_probe(struct platform_device *dev)
{
struct input_dev *input_dev;
int err;
input_dev = input_allocate_device();
if (!input_dev)
return -ENOMEM;
input_set_drvdata(input_dev, (void *) dev->id);
input_dev->name = "ixp4xx beeper",
input_dev->phys = "ixp4xx/gpio";
input_dev->id.bustype = BUS_HOST;
input_dev->id.vendor = 0x001f;
input_dev->id.product = 0x0001;
input_dev->id.version = 0x0100;
input_dev->dev.parent = &dev->dev;
input_dev->evbit[0] = BIT_MASK(EV_SND);
input_dev->sndbit[0] = BIT_MASK(SND_BELL) | BIT_MASK(SND_TONE);
input_dev->event = ixp4xx_spkr_event;
err = request_irq(IRQ_IXP4XX_TIMER2, &ixp4xx_spkr_interrupt,
IRQF_NO_SUSPEND, "ixp4xx-beeper",
(void *) dev->id);
if (err)
goto err_free_device;
err = input_register_device(input_dev);
if (err)
goto err_free_irq;
platform_set_drvdata(dev, input_dev);
return 0;
err_free_irq:
free_irq(IRQ_IXP4XX_TIMER2, dev);
err_free_device:
input_free_device(input_dev);
return err;
}
static int ixp4xx_spkr_remove(struct platform_device *dev)
{
struct input_dev *input_dev = platform_get_drvdata(dev);
unsigned int pin = (unsigned int) input_get_drvdata(input_dev);
input_unregister_device(input_dev);
platform_set_drvdata(dev, NULL);
/* turn the speaker off */
disable_irq(IRQ_IXP4XX_TIMER2);
ixp4xx_spkr_control(pin, 0);
free_irq(IRQ_IXP4XX_TIMER2, dev);
return 0;
}
static void ixp4xx_spkr_shutdown(struct platform_device *dev)
{
struct input_dev *input_dev = platform_get_drvdata(dev);
unsigned int pin = (unsigned int) input_get_drvdata(input_dev);
/* turn off the speaker */
disable_irq(IRQ_IXP4XX_TIMER2);
ixp4xx_spkr_control(pin, 0);
}
static struct platform_driver ixp4xx_spkr_platform_driver = {
.driver = {
.name = "ixp4xx-beeper",
.owner = THIS_MODULE,
},
.probe = ixp4xx_spkr_probe,
.remove = ixp4xx_spkr_remove,
.shutdown = ixp4xx_spkr_shutdown,
};
module_platform_driver(ixp4xx_spkr_platform_driver);

597
drivers/input/misc/keyspan_remote.c Normal file
View File

@@ -0,0 +1,597 @@
/*
* keyspan_remote: USB driver for the Keyspan DMR
*
* Copyright (C) 2005 Zymeta Corporation - Michael Downey (downey@zymeta.com)
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License as
* published by the Free Software Foundation, version 2.
*
* This driver has been put together with the support of Innosys, Inc.
* and Keyspan, Inc the manufacturers of the Keyspan USB DMR product.
*/
#include <linux/kernel.h>
#include <linux/errno.h>
#include <linux/init.h>
#include <linux/slab.h>
#include <linux/module.h>
#include <linux/usb/input.h>
#define DRIVER_VERSION "v0.1"
#define DRIVER_AUTHOR "Michael Downey <downey@zymeta.com>"
#define DRIVER_DESC "Driver for the USB Keyspan remote control."
#define DRIVER_LICENSE "GPL"
/* Parameters that can be passed to the driver. */
static int debug;
module_param(debug, int, 0444);
MODULE_PARM_DESC(debug, "Enable extra debug messages and information");
/* Vendor and product ids */
#define USB_KEYSPAN_VENDOR_ID 0x06CD
#define USB_KEYSPAN_PRODUCT_UIA11 0x0202
/* Defines for converting the data from the remote. */
#define ZERO 0x18
#define ZERO_MASK 0x1F /* 5 bits for a 0 */
#define ONE 0x3C
#define ONE_MASK 0x3F /* 6 bits for a 1 */
#define SYNC 0x3F80
#define SYNC_MASK 0x3FFF /* 14 bits for a SYNC sequence */
#define STOP 0x00
#define STOP_MASK 0x1F /* 5 bits for the STOP sequence */
#define GAP 0xFF
#define RECV_SIZE 8 /* The UIA-11 type have a 8 byte limit. */
/*
* Table that maps the 31 possible keycodes to input keys.
* Currently there are 15 and 17 button models so RESERVED codes
* are blank areas in the mapping.
*/
static const unsigned short keyspan_key_table[] = {
KEY_RESERVED, /* 0 is just a place holder. */
KEY_RESERVED,
KEY_STOP,
KEY_PLAYCD,
KEY_RESERVED,
KEY_PREVIOUSSONG,
KEY_REWIND,
KEY_FORWARD,
KEY_NEXTSONG,
KEY_RESERVED,
KEY_RESERVED,
KEY_RESERVED,
KEY_PAUSE,
KEY_VOLUMEUP,
KEY_RESERVED,
KEY_RESERVED,
KEY_RESERVED,
KEY_VOLUMEDOWN,
KEY_RESERVED,
KEY_UP,
KEY_RESERVED,
KEY_MUTE,
KEY_LEFT,
KEY_ENTER,
KEY_RIGHT,
KEY_RESERVED,
KEY_RESERVED,
KEY_DOWN,
KEY_RESERVED,
KEY_KPASTERISK,
KEY_RESERVED,
KEY_MENU
};
/* table of devices that work with this driver */
static struct usb_device_id keyspan_table[] = {
{ USB_DEVICE(USB_KEYSPAN_VENDOR_ID, USB_KEYSPAN_PRODUCT_UIA11) },
{ } /* Terminating entry */
};
/* Structure to store all the real stuff that a remote sends to us. */
struct keyspan_message {
u16 system;
u8 button;
u8 toggle;
};
/* Structure used for all the bit testing magic needed to be done. */
struct bit_tester {
u32 tester;
int len;
int pos;
int bits_left;
u8 buffer[32];
};
/* Structure to hold all of our driver specific stuff */
struct usb_keyspan {
char name[128];
char phys[64];
unsigned short keymap[ARRAY_SIZE(keyspan_key_table)];
struct usb_device *udev;
struct input_dev *input;
struct usb_interface *interface;
struct usb_endpoint_descriptor *in_endpoint;
struct urb* irq_urb;
int open;
dma_addr_t in_dma;
unsigned char *in_buffer;
/* variables used to parse messages from remote. */
struct bit_tester data;
int stage;
int toggle;
};
static struct usb_driver keyspan_driver;
/*
* Debug routine that prints out what we've received from the remote.
*/
static void keyspan_print(struct usb_keyspan* dev) /*unsigned char* data)*/
{
char codes[4 * RECV_SIZE];
int i;
for (i = 0; i < RECV_SIZE; i++)
snprintf(codes + i * 3, 4, "%02x ", dev->in_buffer[i]);
dev_info(&dev->udev->dev, "%s\n", codes);
}
/*
* Routine that manages the bit_tester structure. It makes sure that there are
* at least bits_needed bits loaded into the tester.
*/
static int keyspan_load_tester(struct usb_keyspan* dev, int bits_needed)
{
if (dev->data.bits_left >= bits_needed)
return 0;
/*
* Somehow we've missed the last message. The message will be repeated
* though so it's not too big a deal
*/
if (dev->data.pos >= dev->data.len) {
dev_dbg(&dev->interface->dev,
"%s - Error ran out of data. pos: %d, len: %d\n",
__func__, dev->data.pos, dev->data.len);
return -1;
}
/* Load as much as we can into the tester. */
while ((dev->data.bits_left + 7 < (sizeof(dev->data.tester) * 8)) &&
(dev->data.pos < dev->data.len)) {
dev->data.tester += (dev->data.buffer[dev->data.pos++] << dev->data.bits_left);
dev->data.bits_left += 8;
}
return 0;
}
static void keyspan_report_button(struct usb_keyspan *remote, int button, int press)
{
struct input_dev *input = remote->input;
input_event(input, EV_MSC, MSC_SCAN, button);
input_report_key(input, remote->keymap[button], press);
input_sync(input);
}
/*
* Routine that handles all the logic needed to parse out the message from the remote.
*/
static void keyspan_check_data(struct usb_keyspan *remote)
{
int i;
int found = 0;
struct keyspan_message message;
switch(remote->stage) {
case 0:
/*
* In stage 0 we want to find the start of a message. The remote sends a 0xFF as filler.
* So the first byte that isn't a FF should be the start of a new message.
*/
for (i = 0; i < RECV_SIZE && remote->in_buffer[i] == GAP; ++i);
if (i < RECV_SIZE) {
memcpy(remote->data.buffer, remote->in_buffer, RECV_SIZE);
remote->data.len = RECV_SIZE;
remote->data.pos = 0;
remote->data.tester = 0;
remote->data.bits_left = 0;
remote->stage = 1;
}
break;
case 1:
/*
* Stage 1 we should have 16 bytes and should be able to detect a
* SYNC. The SYNC is 14 bits, 7 0's and then 7 1's.
*/
memcpy(remote->data.buffer + remote->data.len, remote->in_buffer, RECV_SIZE);
remote->data.len += RECV_SIZE;
found = 0;
while ((remote->data.bits_left >= 14 || remote->data.pos < remote->data.len) && !found) {
for (i = 0; i < 8; ++i) {
if (keyspan_load_tester(remote, 14) != 0) {
remote->stage = 0;
return;
}
if ((remote->data.tester & SYNC_MASK) == SYNC) {
remote->data.tester = remote->data.tester >> 14;
remote->data.bits_left -= 14;
found = 1;
break;
} else {
remote->data.tester = remote->data.tester >> 1;
--remote->data.bits_left;
}
}
}
if (!found) {
remote->stage = 0;
remote->data.len = 0;
} else {
remote->stage = 2;
}
break;
case 2:
/*
* Stage 2 we should have 24 bytes which will be enough for a full
* message. We need to parse out the system code, button code,
* toggle code, and stop.
*/
memcpy(remote->data.buffer + remote->data.len, remote->in_buffer, RECV_SIZE);
remote->data.len += RECV_SIZE;
message.system = 0;
for (i = 0; i < 9; i++) {
keyspan_load_tester(remote, 6);
if ((remote->data.tester & ZERO_MASK) == ZERO) {
message.system = message.system << 1;
remote->data.tester = remote->data.tester >> 5;
remote->data.bits_left -= 5;
} else if ((remote->data.tester & ONE_MASK) == ONE) {
message.system = (message.system << 1) + 1;
remote->data.tester = remote->data.tester >> 6;
remote->data.bits_left -= 6;
} else {
dev_err(&remote->interface->dev,
"%s - Unknown sequence found in system data.\n",
__func__);
remote->stage = 0;
return;
}
}
message.button = 0;
for (i = 0; i < 5; i++) {
keyspan_load_tester(remote, 6);
if ((remote->data.tester & ZERO_MASK) == ZERO) {
message.button = message.button << 1;
remote->data.tester = remote->data.tester >> 5;
remote->data.bits_left -= 5;
} else if ((remote->data.tester & ONE_MASK) == ONE) {
message.button = (message.button << 1) + 1;
remote->data.tester = remote->data.tester >> 6;
remote->data.bits_left -= 6;
} else {
dev_err(&remote->interface->dev,
"%s - Unknown sequence found in button data.\n",
__func__);
remote->stage = 0;
return;
}
}
keyspan_load_tester(remote, 6);
if ((remote->data.tester & ZERO_MASK) == ZERO) {
message.toggle = 0;
remote->data.tester = remote->data.tester >> 5;
remote->data.bits_left -= 5;
} else if ((remote->data.tester & ONE_MASK) == ONE) {
message.toggle = 1;
remote->data.tester = remote->data.tester >> 6;
remote->data.bits_left -= 6;
} else {
dev_err(&remote->interface->dev,
"%s - Error in message, invalid toggle.\n",
__func__);
remote->stage = 0;
return;
}
keyspan_load_tester(remote, 5);
if ((remote->data.tester & STOP_MASK) == STOP) {
remote->data.tester = remote->data.tester >> 5;
remote->data.bits_left -= 5;
} else {
dev_err(&remote->interface->dev,
"Bad message received, no stop bit found.\n");
}
dev_dbg(&remote->interface->dev,
"%s found valid message: system: %d, button: %d, toggle: %d\n",
__func__, message.system, message.button, message.toggle);
if (message.toggle != remote->toggle) {
keyspan_report_button(remote, message.button, 1);
keyspan_report_button(remote, message.button, 0);
remote->toggle = message.toggle;
}
remote->stage = 0;
break;
}
}
/*
* Routine for sending all the initialization messages to the remote.
*/
static int keyspan_setup(struct usb_device* dev)
{
int retval = 0;
retval = usb_control_msg(dev, usb_sndctrlpipe(dev, 0),
0x11, 0x40, 0x5601, 0x0, NULL, 0, 0);
if (retval) {
dev_dbg(&dev->dev, "%s - failed to set bit rate due to error: %d\n",
__func__, retval);
return(retval);
}
retval = usb_control_msg(dev, usb_sndctrlpipe(dev, 0),
0x44, 0x40, 0x0, 0x0, NULL, 0, 0);
if (retval) {
dev_dbg(&dev->dev, "%s - failed to set resume sensitivity due to error: %d\n",
__func__, retval);
return(retval);
}
retval = usb_control_msg(dev, usb_sndctrlpipe(dev, 0),
0x22, 0x40, 0x0, 0x0, NULL, 0, 0);
if (retval) {
dev_dbg(&dev->dev, "%s - failed to turn receive on due to error: %d\n",
__func__, retval);
return(retval);
}
dev_dbg(&dev->dev, "%s - Setup complete.\n", __func__);
return(retval);
}
/*
* Routine used to handle a new message that has come in.
*/
static void keyspan_irq_recv(struct urb *urb)
{
struct usb_keyspan *dev = urb->context;
int retval;
/* Check our status in case we need to bail out early. */
switch (urb->status) {
case 0:
break;
/* Device went away so don't keep trying to read from it. */
case -ECONNRESET:
case -ENOENT:
case -ESHUTDOWN:
return;
default:
goto resubmit;
break;
}
if (debug)
keyspan_print(dev);
keyspan_check_data(dev);
resubmit:
retval = usb_submit_urb(urb, GFP_ATOMIC);
if (retval)
dev_err(&dev->interface->dev,
"%s - usb_submit_urb failed with result: %d\n",
__func__, retval);
}
static int keyspan_open(struct input_dev *dev)
{
struct usb_keyspan *remote = input_get_drvdata(dev);
remote->irq_urb->dev = remote->udev;
if (usb_submit_urb(remote->irq_urb, GFP_KERNEL))
return -EIO;
return 0;
}
static void keyspan_close(struct input_dev *dev)
{
struct usb_keyspan *remote = input_get_drvdata(dev);
usb_kill_urb(remote->irq_urb);
}
static struct usb_endpoint_descriptor *keyspan_get_in_endpoint(struct usb_host_interface *iface)
{
struct usb_endpoint_descriptor *endpoint;
int i;
for (i = 0; i < iface->desc.bNumEndpoints; ++i) {
endpoint = &iface->endpoint[i].desc;
if (usb_endpoint_is_int_in(endpoint)) {
/* we found our interrupt in endpoint */
return endpoint;
}
}
return NULL;
}
/*
* Routine that sets up the driver to handle a specific USB device detected on the bus.
*/
static int keyspan_probe(struct usb_interface *interface, const struct usb_device_id *id)
{
struct usb_device *udev = interface_to_usbdev(interface);
struct usb_endpoint_descriptor *endpoint;
struct usb_keyspan *remote;
struct input_dev *input_dev;
int i, error;
endpoint = keyspan_get_in_endpoint(interface->cur_altsetting);
if (!endpoint)
return -ENODEV;
remote = kzalloc(sizeof(*remote), GFP_KERNEL);
input_dev = input_allocate_device();
if (!remote || !input_dev) {
error = -ENOMEM;
goto fail1;
}
remote->udev = udev;
remote->input = input_dev;
remote->interface = interface;
remote->in_endpoint = endpoint;
remote->toggle = -1; /* Set to -1 so we will always not match the toggle from the first remote message. */
remote->in_buffer = usb_alloc_coherent(udev, RECV_SIZE, GFP_ATOMIC, &remote->in_dma);
if (!remote->in_buffer) {
error = -ENOMEM;
goto fail1;
}
remote->irq_urb = usb_alloc_urb(0, GFP_KERNEL);
if (!remote->irq_urb) {
error = -ENOMEM;
goto fail2;
}
error = keyspan_setup(udev);
if (error) {
error = -ENODEV;
goto fail3;
}
if (udev->manufacturer)
strlcpy(remote->name, udev->manufacturer, sizeof(remote->name));
if (udev->product) {
if (udev->manufacturer)
strlcat(remote->name, " ", sizeof(remote->name));
strlcat(remote->name, udev->product, sizeof(remote->name));
}
if (!strlen(remote->name))
snprintf(remote->name, sizeof(remote->name),
"USB Keyspan Remote %04x:%04x",
le16_to_cpu(udev->descriptor.idVendor),
le16_to_cpu(udev->descriptor.idProduct));
usb_make_path(udev, remote->phys, sizeof(remote->phys));
strlcat(remote->phys, "/input0", sizeof(remote->phys));
memcpy(remote->keymap, keyspan_key_table, sizeof(remote->keymap));
input_dev->name = remote->name;
input_dev->phys = remote->phys;
usb_to_input_id(udev, &input_dev->id);
input_dev->dev.parent = &interface->dev;
input_dev->keycode = remote->keymap;
input_dev->keycodesize = sizeof(unsigned short);
input_dev->keycodemax = ARRAY_SIZE(remote->keymap);
input_set_capability(input_dev, EV_MSC, MSC_SCAN);
__set_bit(EV_KEY, input_dev->evbit);
for (i = 0; i < ARRAY_SIZE(keyspan_key_table); i++)
__set_bit(keyspan_key_table[i], input_dev->keybit);
__clear_bit(KEY_RESERVED, input_dev->keybit);
input_set_drvdata(input_dev, remote);
input_dev->open = keyspan_open;
input_dev->close = keyspan_close;
/*
* Initialize the URB to access the device.
* The urb gets sent to the device in keyspan_open()
*/
usb_fill_int_urb(remote->irq_urb,
remote->udev,
usb_rcvintpipe(remote->udev, endpoint->bEndpointAddress),
remote->in_buffer, RECV_SIZE, keyspan_irq_recv, remote,
endpoint->bInterval);
remote->irq_urb->transfer_dma = remote->in_dma;
remote->irq_urb->transfer_flags |= URB_NO_TRANSFER_DMA_MAP;
/* we can register the device now, as it is ready */
error = input_register_device(remote->input);
if (error)
goto fail3;
/* save our data pointer in this interface device */
usb_set_intfdata(interface, remote);
return 0;
fail3: usb_free_urb(remote->irq_urb);
fail2: usb_free_coherent(udev, RECV_SIZE, remote->in_buffer, remote->in_dma);
fail1: kfree(remote);
input_free_device(input_dev);
return error;
}
/*
* Routine called when a device is disconnected from the USB.
*/
static void keyspan_disconnect(struct usb_interface *interface)
{
struct usb_keyspan *remote;
remote = usb_get_intfdata(interface);
usb_set_intfdata(interface, NULL);
if (remote) { /* We have a valid driver structure so clean up everything we allocated. */
input_unregister_device(remote->input);
usb_kill_urb(remote->irq_urb);
usb_free_urb(remote->irq_urb);
usb_free_coherent(remote->udev, RECV_SIZE, remote->in_buffer, remote->in_dma);
kfree(remote);
}
}
/*
* Standard driver set up sections
*/
static struct usb_driver keyspan_driver =
{
.name = "keyspan_remote",
.probe = keyspan_probe,
.disconnect = keyspan_disconnect,
.id_table = keyspan_table
};
module_usb_driver(keyspan_driver);
MODULE_DEVICE_TABLE(usb, keyspan_table);
MODULE_AUTHOR(DRIVER_AUTHOR);
MODULE_DESCRIPTION(DRIVER_DESC);
MODULE_LICENSE(DRIVER_LICENSE);

674
drivers/input/misc/kxtj9.c Normal file
View File

@@ -0,0 +1,674 @@
/*
* Copyright (C) 2011 Kionix, Inc.
* Written by Chris Hudson <chudson@kionix.com>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
* 02111-1307, USA
*/
#include <linux/delay.h>
#include <linux/i2c.h>
#include <linux/input.h>
#include <linux/interrupt.h>
#include <linux/module.h>
#include <linux/slab.h>
#include <linux/input/kxtj9.h>
#include <linux/input-polldev.h>
#define NAME "kxtj9"
#define G_MAX 8000
/* OUTPUT REGISTERS */
#define XOUT_L 0x06
#define WHO_AM_I 0x0F
/* CONTROL REGISTERS */
#define INT_REL 0x1A
#define CTRL_REG1 0x1B
#define INT_CTRL1 0x1E
#define DATA_CTRL 0x21
/* CONTROL REGISTER 1 BITS */
#define PC1_OFF 0x7F
#define PC1_ON (1 << 7)
/* Data ready funtion enable bit: set during probe if using irq mode */
#define DRDYE (1 << 5)
/* DATA CONTROL REGISTER BITS */
#define ODR12_5F 0
#define ODR25F 1
#define ODR50F 2
#define ODR100F 3
#define ODR200F 4
#define ODR400F 5
#define ODR800F 6
/* INTERRUPT CONTROL REGISTER 1 BITS */
/* Set these during probe if using irq mode */
#define KXTJ9_IEL (1 << 3)
#define KXTJ9_IEA (1 << 4)
#define KXTJ9_IEN (1 << 5)
/* INPUT_ABS CONSTANTS */
#define FUZZ 3
#define FLAT 3
/* RESUME STATE INDICES */
#define RES_DATA_CTRL 0
#define RES_CTRL_REG1 1
#define RES_INT_CTRL1 2
#define RESUME_ENTRIES 3
/*
* The following table lists the maximum appropriate poll interval for each
* available output data rate.
*/
static const struct {
unsigned int cutoff;
u8 mask;
} kxtj9_odr_table[] = {
{ 3, ODR800F },
{ 5, ODR400F },
{ 10, ODR200F },
{ 20, ODR100F },
{ 40, ODR50F },
{ 80, ODR25F },
{ 0, ODR12_5F},
};
struct kxtj9_data {
struct i2c_client *client;
struct kxtj9_platform_data pdata;
struct input_dev *input_dev;
#ifdef CONFIG_INPUT_KXTJ9_POLLED_MODE
struct input_polled_dev *poll_dev;
#endif
unsigned int last_poll_interval;
u8 shift;
u8 ctrl_reg1;
u8 data_ctrl;
u8 int_ctrl;
};
static int kxtj9_i2c_read(struct kxtj9_data *tj9, u8 addr, u8 *data, int len)
{
struct i2c_msg msgs[] = {
{
.addr = tj9->client->addr,
.flags = tj9->client->flags,
.len = 1,
.buf = &addr,
},
{
.addr = tj9->client->addr,
.flags = tj9->client->flags | I2C_M_RD,
.len = len,
.buf = data,
},
};
return i2c_transfer(tj9->client->adapter, msgs, 2);
}
static void kxtj9_report_acceleration_data(struct kxtj9_data *tj9)
{
s16 acc_data[3]; /* Data bytes from hardware xL, xH, yL, yH, zL, zH */
s16 x, y, z;
int err;
err = kxtj9_i2c_read(tj9, XOUT_L, (u8 *)acc_data, 6);
if (err < 0)
dev_err(&tj9->client->dev, "accelerometer data read failed\n");
x = le16_to_cpu(acc_data[tj9->pdata.axis_map_x]);
y = le16_to_cpu(acc_data[tj9->pdata.axis_map_y]);
z = le16_to_cpu(acc_data[tj9->pdata.axis_map_z]);
x >>= tj9->shift;
y >>= tj9->shift;
z >>= tj9->shift;
input_report_abs(tj9->input_dev, ABS_X, tj9->pdata.negate_x ? -x : x);
input_report_abs(tj9->input_dev, ABS_Y, tj9->pdata.negate_y ? -y : y);
input_report_abs(tj9->input_dev, ABS_Z, tj9->pdata.negate_z ? -z : z);
input_sync(tj9->input_dev);
}
static irqreturn_t kxtj9_isr(int irq, void *dev)
{
struct kxtj9_data *tj9 = dev;
int err;
/* data ready is the only possible interrupt type */
kxtj9_report_acceleration_data(tj9);
err = i2c_smbus_read_byte_data(tj9->client, INT_REL);
if (err < 0)
dev_err(&tj9->client->dev,
"error clearing interrupt status: %d\n", err);
return IRQ_HANDLED;
}
static int kxtj9_update_g_range(struct kxtj9_data *tj9, u8 new_g_range)
{
switch (new_g_range) {
case KXTJ9_G_2G:
tj9->shift = 4;
break;
case KXTJ9_G_4G:
tj9->shift = 3;
break;
case KXTJ9_G_8G:
tj9->shift = 2;
break;
default:
return -EINVAL;
}
tj9->ctrl_reg1 &= 0xe7;
tj9->ctrl_reg1 |= new_g_range;
return 0;
}
static int kxtj9_update_odr(struct kxtj9_data *tj9, unsigned int poll_interval)
{
int err;
int i;
/* Use the lowest ODR that can support the requested poll interval */
for (i = 0; i < ARRAY_SIZE(kxtj9_odr_table); i++) {
tj9->data_ctrl = kxtj9_odr_table[i].mask;
if (poll_interval < kxtj9_odr_table[i].cutoff)
break;
}
err = i2c_smbus_write_byte_data(tj9->client, CTRL_REG1, 0);
if (err < 0)
return err;
err = i2c_smbus_write_byte_data(tj9->client, DATA_CTRL, tj9->data_ctrl);
if (err < 0)
return err;
err = i2c_smbus_write_byte_data(tj9->client, CTRL_REG1, tj9->ctrl_reg1);
if (err < 0)
return err;
return 0;
}
static int kxtj9_device_power_on(struct kxtj9_data *tj9)
{
if (tj9->pdata.power_on)
return tj9->pdata.power_on();
return 0;
}
static void kxtj9_device_power_off(struct kxtj9_data *tj9)
{
int err;
tj9->ctrl_reg1 &= PC1_OFF;
err = i2c_smbus_write_byte_data(tj9->client, CTRL_REG1, tj9->ctrl_reg1);
if (err < 0)
dev_err(&tj9->client->dev, "soft power off failed\n");
if (tj9->pdata.power_off)
tj9->pdata.power_off();
}
static int kxtj9_enable(struct kxtj9_data *tj9)
{
int err;
err = kxtj9_device_power_on(tj9);
if (err < 0)
return err;
/* ensure that PC1 is cleared before updating control registers */
err = i2c_smbus_write_byte_data(tj9->client, CTRL_REG1, 0);
if (err < 0)
return err;
/* only write INT_CTRL_REG1 if in irq mode */
if (tj9->client->irq) {
err = i2c_smbus_write_byte_data(tj9->client,
INT_CTRL1, tj9->int_ctrl);
if (err < 0)
return err;
}
err = kxtj9_update_g_range(tj9, tj9->pdata.g_range);
if (err < 0)
return err;
/* turn on outputs */
tj9->ctrl_reg1 |= PC1_ON;
err = i2c_smbus_write_byte_data(tj9->client, CTRL_REG1, tj9->ctrl_reg1);
if (err < 0)
return err;
err = kxtj9_update_odr(tj9, tj9->last_poll_interval);
if (err < 0)
return err;
/* clear initial interrupt if in irq mode */
if (tj9->client->irq) {
err = i2c_smbus_read_byte_data(tj9->client, INT_REL);
if (err < 0) {
dev_err(&tj9->client->dev,
"error clearing interrupt: %d\n", err);
goto fail;
}
}
return 0;
fail:
kxtj9_device_power_off(tj9);
return err;
}
static void kxtj9_disable(struct kxtj9_data *tj9)
{
kxtj9_device_power_off(tj9);
}
static int kxtj9_input_open(struct input_dev *input)
{
struct kxtj9_data *tj9 = input_get_drvdata(input);
return kxtj9_enable(tj9);
}
static void kxtj9_input_close(struct input_dev *dev)
{
struct kxtj9_data *tj9 = input_get_drvdata(dev);
kxtj9_disable(tj9);
}
static void kxtj9_init_input_device(struct kxtj9_data *tj9,
struct input_dev *input_dev)
{
__set_bit(EV_ABS, input_dev->evbit);
input_set_abs_params(input_dev, ABS_X, -G_MAX, G_MAX, FUZZ, FLAT);
input_set_abs_params(input_dev, ABS_Y, -G_MAX, G_MAX, FUZZ, FLAT);
input_set_abs_params(input_dev, ABS_Z, -G_MAX, G_MAX, FUZZ, FLAT);
input_dev->name = "kxtj9_accel";
input_dev->id.bustype = BUS_I2C;
input_dev->dev.parent = &tj9->client->dev;
}
static int kxtj9_setup_input_device(struct kxtj9_data *tj9)
{
struct input_dev *input_dev;
int err;
input_dev = input_allocate_device();
if (!input_dev) {
dev_err(&tj9->client->dev, "input device allocate failed\n");
return -ENOMEM;
}
tj9->input_dev = input_dev;
input_dev->open = kxtj9_input_open;
input_dev->close = kxtj9_input_close;
input_set_drvdata(input_dev, tj9);
kxtj9_init_input_device(tj9, input_dev);
err = input_register_device(tj9->input_dev);
if (err) {
dev_err(&tj9->client->dev,
"unable to register input polled device %s: %d\n",
tj9->input_dev->name, err);
input_free_device(tj9->input_dev);
return err;
}
return 0;
}
/*
* When IRQ mode is selected, we need to provide an interface to allow the user
* to change the output data rate of the part. For consistency, we are using
* the set_poll method, which accepts a poll interval in milliseconds, and then
* calls update_odr() while passing this value as an argument. In IRQ mode, the
* data outputs will not be read AT the requested poll interval, rather, the
* lowest ODR that can support the requested interval. The client application
* will be responsible for retrieving data from the input node at the desired
* interval.
*/
/* Returns currently selected poll interval (in ms) */
static ssize_t kxtj9_get_poll(struct device *dev,
struct device_attribute *attr, char *buf)
{
struct i2c_client *client = to_i2c_client(dev);
struct kxtj9_data *tj9 = i2c_get_clientdata(client);
return sprintf(buf, "%d\n", tj9->last_poll_interval);
}
/* Allow users to select a new poll interval (in ms) */
static ssize_t kxtj9_set_poll(struct device *dev, struct device_attribute *attr,
const char *buf, size_t count)
{
struct i2c_client *client = to_i2c_client(dev);
struct kxtj9_data *tj9 = i2c_get_clientdata(client);
struct input_dev *input_dev = tj9->input_dev;
unsigned int interval;
int error;
error = kstrtouint(buf, 10, &interval);
if (error < 0)
return error;
/* Lock the device to prevent races with open/close (and itself) */
mutex_lock(&input_dev->mutex);
disable_irq(client->irq);
/*
* Set current interval to the greater of the minimum interval or
* the requested interval
*/
tj9->last_poll_interval = max(interval, tj9->pdata.min_interval);
kxtj9_update_odr(tj9, tj9->last_poll_interval);
enable_irq(client->irq);
mutex_unlock(&input_dev->mutex);
return count;
}
static DEVICE_ATTR(poll, S_IRUGO|S_IWUSR, kxtj9_get_poll, kxtj9_set_poll);
static struct attribute *kxtj9_attributes[] = {
&dev_attr_poll.attr,
NULL
};
static struct attribute_group kxtj9_attribute_group = {
.attrs = kxtj9_attributes
};
#ifdef CONFIG_INPUT_KXTJ9_POLLED_MODE
static void kxtj9_poll(struct input_polled_dev *dev)
{
struct kxtj9_data *tj9 = dev->private;
unsigned int poll_interval = dev->poll_interval;
kxtj9_report_acceleration_data(tj9);
if (poll_interval != tj9->last_poll_interval) {
kxtj9_update_odr(tj9, poll_interval);
tj9->last_poll_interval = poll_interval;
}
}
static void kxtj9_polled_input_open(struct input_polled_dev *dev)
{
struct kxtj9_data *tj9 = dev->private;
kxtj9_enable(tj9);
}
static void kxtj9_polled_input_close(struct input_polled_dev *dev)
{
struct kxtj9_data *tj9 = dev->private;
kxtj9_disable(tj9);
}
static int kxtj9_setup_polled_device(struct kxtj9_data *tj9)
{
int err;
struct input_polled_dev *poll_dev;
poll_dev = input_allocate_polled_device();
if (!poll_dev) {
dev_err(&tj9->client->dev,
"Failed to allocate polled device\n");
return -ENOMEM;
}
tj9->poll_dev = poll_dev;
tj9->input_dev = poll_dev->input;
poll_dev->private = tj9;
poll_dev->poll = kxtj9_poll;
poll_dev->open = kxtj9_polled_input_open;
poll_dev->close = kxtj9_polled_input_close;
kxtj9_init_input_device(tj9, poll_dev->input);
err = input_register_polled_device(poll_dev);
if (err) {
dev_err(&tj9->client->dev,
"Unable to register polled device, err=%d\n", err);
input_free_polled_device(poll_dev);
return err;
}
return 0;
}
static void kxtj9_teardown_polled_device(struct kxtj9_data *tj9)
{
input_unregister_polled_device(tj9->poll_dev);
input_free_polled_device(tj9->poll_dev);
}
#else
static inline int kxtj9_setup_polled_device(struct kxtj9_data *tj9)
{
return -ENOSYS;
}
static inline void kxtj9_teardown_polled_device(struct kxtj9_data *tj9)
{
}
#endif
static int kxtj9_verify(struct kxtj9_data *tj9)
{
int retval;
retval = kxtj9_device_power_on(tj9);
if (retval < 0)
return retval;
retval = i2c_smbus_read_byte_data(tj9->client, WHO_AM_I);
if (retval < 0) {
dev_err(&tj9->client->dev, "read err int source\n");
goto out;
}
retval = (retval != 0x07 && retval != 0x08) ? -EIO : 0;
out:
kxtj9_device_power_off(tj9);
return retval;
}
static int kxtj9_probe(struct i2c_client *client,
const struct i2c_device_id *id)
{
const struct kxtj9_platform_data *pdata = client->dev.platform_data;
struct kxtj9_data *tj9;
int err;
if (!i2c_check_functionality(client->adapter,
I2C_FUNC_I2C | I2C_FUNC_SMBUS_BYTE_DATA)) {
dev_err(&client->dev, "client is not i2c capable\n");
return -ENXIO;
}
if (!pdata) {
dev_err(&client->dev, "platform data is NULL; exiting\n");
return -EINVAL;
}
tj9 = kzalloc(sizeof(*tj9), GFP_KERNEL);
if (!tj9) {
dev_err(&client->dev,
"failed to allocate memory for module data\n");
return -ENOMEM;
}
tj9->client = client;
tj9->pdata = *pdata;
if (pdata->init) {
err = pdata->init();
if (err < 0)
goto err_free_mem;
}
err = kxtj9_verify(tj9);
if (err < 0) {
dev_err(&client->dev, "device not recognized\n");
goto err_pdata_exit;
}
i2c_set_clientdata(client, tj9);
tj9->ctrl_reg1 = tj9->pdata.res_12bit | tj9->pdata.g_range;
tj9->last_poll_interval = tj9->pdata.init_interval;
if (client->irq) {
/* If in irq mode, populate INT_CTRL_REG1 and enable DRDY. */
tj9->int_ctrl |= KXTJ9_IEN | KXTJ9_IEA | KXTJ9_IEL;
tj9->ctrl_reg1 |= DRDYE;
err = kxtj9_setup_input_device(tj9);
if (err)
goto err_pdata_exit;
err = request_threaded_irq(client->irq, NULL, kxtj9_isr,
IRQF_TRIGGER_RISING | IRQF_ONESHOT,
"kxtj9-irq", tj9);
if (err) {
dev_err(&client->dev, "request irq failed: %d\n", err);
goto err_destroy_input;
}
err = sysfs_create_group(&client->dev.kobj, &kxtj9_attribute_group);
if (err) {
dev_err(&client->dev, "sysfs create failed: %d\n", err);
goto err_free_irq;
}
} else {
err = kxtj9_setup_polled_device(tj9);
if (err)
goto err_pdata_exit;
}
return 0;
err_free_irq:
free_irq(client->irq, tj9);
err_destroy_input:
input_unregister_device(tj9->input_dev);
err_pdata_exit:
if (tj9->pdata.exit)
tj9->pdata.exit();
err_free_mem:
kfree(tj9);
return err;
}
static int kxtj9_remove(struct i2c_client *client)
{
struct kxtj9_data *tj9 = i2c_get_clientdata(client);
if (client->irq) {
sysfs_remove_group(&client->dev.kobj, &kxtj9_attribute_group);
free_irq(client->irq, tj9);
input_unregister_device(tj9->input_dev);
} else {
kxtj9_teardown_polled_device(tj9);
}
if (tj9->pdata.exit)
tj9->pdata.exit();
kfree(tj9);
return 0;
}
#ifdef CONFIG_PM_SLEEP
static int kxtj9_suspend(struct device *dev)
{
struct i2c_client *client = to_i2c_client(dev);
struct kxtj9_data *tj9 = i2c_get_clientdata(client);
struct input_dev *input_dev = tj9->input_dev;
mutex_lock(&input_dev->mutex);
if (input_dev->users)
kxtj9_disable(tj9);
mutex_unlock(&input_dev->mutex);
return 0;
}
static int kxtj9_resume(struct device *dev)
{
struct i2c_client *client = to_i2c_client(dev);
struct kxtj9_data *tj9 = i2c_get_clientdata(client);
struct input_dev *input_dev = tj9->input_dev;
int retval = 0;
mutex_lock(&input_dev->mutex);
if (input_dev->users)
kxtj9_enable(tj9);
mutex_unlock(&input_dev->mutex);
return retval;
}
#endif
static SIMPLE_DEV_PM_OPS(kxtj9_pm_ops, kxtj9_suspend, kxtj9_resume);
static const struct i2c_device_id kxtj9_id[] = {
{ NAME, 0 },
{ },
};
MODULE_DEVICE_TABLE(i2c, kxtj9_id);
static struct i2c_driver kxtj9_driver = {
.driver = {
.name = NAME,
.owner = THIS_MODULE,
.pm = &kxtj9_pm_ops,
},
.probe = kxtj9_probe,
.remove = kxtj9_remove,
.id_table = kxtj9_id,
};
module_i2c_driver(kxtj9_driver);
MODULE_DESCRIPTION("KXTJ9 accelerometer driver");
MODULE_AUTHOR("Chris Hudson <chudson@kionix.com>");
MODULE_LICENSE("GPL");

151
drivers/input/misc/m68kspkr.c Normal file
View File

@@ -0,0 +1,151 @@
/*
* m68k beeper driver for Linux
*
* Copyright (c) 2002 Richard Zidlicky
* Copyright (c) 2002 Vojtech Pavlik
* Copyright (c) 1992 Orest Zborowski
*
*/
/*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 as published by
* the Free Software Foundation
*/
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/init.h>
#include <linux/input.h>
#include <linux/platform_device.h>
#include <asm/machdep.h>
#include <asm/io.h>
MODULE_AUTHOR("Richard Zidlicky <rz@linux-m68k.org>");
MODULE_DESCRIPTION("m68k beeper driver");
MODULE_LICENSE("GPL");
static struct platform_device *m68kspkr_platform_device;
static int m68kspkr_event(struct input_dev *dev, unsigned int type, unsigned int code, int value)
{
unsigned int count = 0;
if (type != EV_SND)
return -1;
switch (code) {
case SND_BELL: if (value) value = 1000;
case SND_TONE: break;
default: return -1;
}
if (value > 20 && value < 32767)
count = 1193182 / value;
mach_beep(count, -1);
return 0;
}
static int m68kspkr_probe(struct platform_device *dev)
{
struct input_dev *input_dev;
int err;
input_dev = input_allocate_device();
if (!input_dev)
return -ENOMEM;
input_dev->name = "m68k beeper";
input_dev->phys = "m68k/generic";
input_dev->id.bustype = BUS_HOST;
input_dev->id.vendor = 0x001f;
input_dev->id.product = 0x0001;
input_dev->id.version = 0x0100;
input_dev->dev.parent = &dev->dev;
input_dev->evbit[0] = BIT_MASK(EV_SND);
input_dev->sndbit[0] = BIT_MASK(SND_BELL) | BIT_MASK(SND_TONE);
input_dev->event = m68kspkr_event;
err = input_register_device(input_dev);
if (err) {
input_free_device(input_dev);
return err;
}
platform_set_drvdata(dev, input_dev);
return 0;
}
static int m68kspkr_remove(struct platform_device *dev)
{
struct input_dev *input_dev = platform_get_drvdata(dev);
input_unregister_device(input_dev);
platform_set_drvdata(dev, NULL);
/* turn off the speaker */
m68kspkr_event(NULL, EV_SND, SND_BELL, 0);
return 0;
}
static void m68kspkr_shutdown(struct platform_device *dev)
{
/* turn off the speaker */
m68kspkr_event(NULL, EV_SND, SND_BELL, 0);
}
static struct platform_driver m68kspkr_platform_driver = {
.driver = {
.name = "m68kspkr",
.owner = THIS_MODULE,
},
.probe = m68kspkr_probe,
.remove = m68kspkr_remove,
.shutdown = m68kspkr_shutdown,
};
static int __init m68kspkr_init(void)
{
int err;
if (!mach_beep) {
printk(KERN_INFO "m68kspkr: no lowlevel beep support\n");
return -ENODEV;
}
err = platform_driver_register(&m68kspkr_platform_driver);
if (err)
return err;
m68kspkr_platform_device = platform_device_alloc("m68kspkr", -1);
if (!m68kspkr_platform_device) {
err = -ENOMEM;
goto err_unregister_driver;
}
err = platform_device_add(m68kspkr_platform_device);
if (err)
goto err_free_device;
return 0;
err_free_device:
platform_device_put(m68kspkr_platform_device);
err_unregister_driver:
platform_driver_unregister(&m68kspkr_platform_driver);
return err;
}
static void __exit m68kspkr_exit(void)
{
platform_device_unregister(m68kspkr_platform_device);
platform_driver_unregister(&m68kspkr_platform_driver);
}
module_init(m68kspkr_init);
module_exit(m68kspkr_exit);

201
drivers/input/misc/max8925_onkey.c Normal file
View File

@@ -0,0 +1,201 @@
/**
* MAX8925 ONKEY driver
*
* Copyright (C) 2009 Marvell International Ltd.
* Haojian Zhuang <haojian.zhuang@marvell.com>
*
* This file is subject to the terms and conditions of the GNU General
* Public License. See the file "COPYING" in the main directory of this
* archive for more details.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/platform_device.h>
#include <linux/i2c.h>
#include <linux/input.h>
#include <linux/interrupt.h>
#include <linux/mfd/max8925.h>
#include <linux/slab.h>
#define SW_INPUT (1 << 7) /* 0/1 -- up/down */
#define HARDRESET_EN (1 << 7)
#define PWREN_EN (1 << 7)
struct max8925_onkey_info {
struct input_dev *idev;
struct i2c_client *i2c;
struct device *dev;
unsigned int irq[2];
};
/*
* MAX8925 gives us an interrupt when ONKEY is pressed or released.
* max8925_set_bits() operates I2C bus and may sleep. So implement
* it in thread IRQ handler.
*/
static irqreturn_t max8925_onkey_handler(int irq, void *data)
{
struct max8925_onkey_info *info = data;
int state;
state = max8925_reg_read(info->i2c, MAX8925_ON_OFF_STATUS);
input_report_key(info->idev, KEY_POWER, state & SW_INPUT);
input_sync(info->idev);
dev_dbg(info->dev, "onkey state:%d\n", state);
/* Enable hardreset to halt if system isn't shutdown on time */
max8925_set_bits(info->i2c, MAX8925_SYSENSEL,
HARDRESET_EN, HARDRESET_EN);
return IRQ_HANDLED;
}
static int max8925_onkey_probe(struct platform_device *pdev)
{
struct max8925_chip *chip = dev_get_drvdata(pdev->dev.parent);
struct max8925_onkey_info *info;
struct input_dev *input;
int irq[2], error;
irq[0] = platform_get_irq(pdev, 0);
if (irq[0] < 0) {
dev_err(&pdev->dev, "No IRQ resource!\n");
return -EINVAL;
}
irq[1] = platform_get_irq(pdev, 1);
if (irq[1] < 0) {
dev_err(&pdev->dev, "No IRQ resource!\n");
return -EINVAL;
}
info = kzalloc(sizeof(struct max8925_onkey_info), GFP_KERNEL);
input = input_allocate_device();
if (!info || !input) {
error = -ENOMEM;
goto err_free_mem;
}
info->idev = input;
info->i2c = chip->i2c;
info->dev = &pdev->dev;
info->irq[0] = irq[0];
info->irq[1] = irq[1];
input->name = "max8925_on";
input->phys = "max8925_on/input0";
input->id.bustype = BUS_I2C;
input->dev.parent = &pdev->dev;
input_set_capability(input, EV_KEY, KEY_POWER);
error = request_threaded_irq(irq[0], NULL, max8925_onkey_handler,
IRQF_ONESHOT, "onkey-down", info);
if (error < 0) {
dev_err(chip->dev, "Failed to request IRQ: #%d: %d\n",
irq[0], error);
goto err_free_mem;
}
error = request_threaded_irq(irq[1], NULL, max8925_onkey_handler,
IRQF_ONESHOT, "onkey-up", info);
if (error < 0) {
dev_err(chip->dev, "Failed to request IRQ: #%d: %d\n",
irq[1], error);
goto err_free_irq0;
}
error = input_register_device(info->idev);
if (error) {
dev_err(chip->dev, "Can't register input device: %d\n", error);
goto err_free_irq1;
}
platform_set_drvdata(pdev, info);
device_init_wakeup(&pdev->dev, 1);
return 0;
err_free_irq1:
free_irq(irq[1], info);
err_free_irq0:
free_irq(irq[0], info);
err_free_mem:
input_free_device(input);
kfree(info);
return error;
}
static int max8925_onkey_remove(struct platform_device *pdev)
{
struct max8925_onkey_info *info = platform_get_drvdata(pdev);
struct max8925_chip *chip = dev_get_drvdata(pdev->dev.parent);
free_irq(info->irq[0] + chip->irq_base, info);
free_irq(info->irq[1] + chip->irq_base, info);
input_unregister_device(info->idev);
kfree(info);
platform_set_drvdata(pdev, NULL);
return 0;
}
#ifdef CONFIG_PM_SLEEP
static int max8925_onkey_suspend(struct device *dev)
{
struct platform_device *pdev = to_platform_device(dev);
struct max8925_onkey_info *info = platform_get_drvdata(pdev);
struct max8925_chip *chip = dev_get_drvdata(pdev->dev.parent);
if (device_may_wakeup(dev)) {
chip->wakeup_flag |= 1 << info->irq[0];
chip->wakeup_flag |= 1 << info->irq[1];
}
return 0;
}
static int max8925_onkey_resume(struct device *dev)
{
struct platform_device *pdev = to_platform_device(dev);
struct max8925_onkey_info *info = platform_get_drvdata(pdev);
struct max8925_chip *chip = dev_get_drvdata(pdev->dev.parent);
if (device_may_wakeup(dev)) {
chip->wakeup_flag &= ~(1 << info->irq[0]);
chip->wakeup_flag &= ~(1 << info->irq[1]);
}
return 0;
}
#endif
static SIMPLE_DEV_PM_OPS(max8925_onkey_pm_ops, max8925_onkey_suspend, max8925_onkey_resume);
static struct platform_driver max8925_onkey_driver = {
.driver = {
.name = "max8925-onkey",
.owner = THIS_MODULE,
.pm = &max8925_onkey_pm_ops,
},
.probe = max8925_onkey_probe,
.remove = max8925_onkey_remove,
};
module_platform_driver(max8925_onkey_driver);
MODULE_DESCRIPTION("Maxim MAX8925 ONKEY driver");
MODULE_AUTHOR("Haojian Zhuang <haojian.zhuang@marvell.com>");
MODULE_LICENSE("GPL");

407
drivers/input/misc/max8997_haptic.c Normal file
View File

@@ -0,0 +1,407 @@
/*
* MAX8997-haptic controller driver
*
* Copyright (C) 2012 Samsung Electronics
* Donggeun Kim <dg77.kim@samsung.com>
*
* This program is not provided / owned by Maxim Integrated Products.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*
*/
#include <linux/module.h>
#include <linux/init.h>
#include <linux/slab.h>
#include <linux/platform_device.h>
#include <linux/err.h>
#include <linux/pwm.h>
#include <linux/input.h>
#include <linux/mfd/max8997-private.h>
#include <linux/mfd/max8997.h>
#include <linux/regulator/consumer.h>
/* Haptic configuration 2 register */
#define MAX8997_MOTOR_TYPE_SHIFT 7
#define MAX8997_ENABLE_SHIFT 6
#define MAX8997_MODE_SHIFT 5
/* Haptic driver configuration register */
#define MAX8997_CYCLE_SHIFT 6
#define MAX8997_SIG_PERIOD_SHIFT 4
#define MAX8997_SIG_DUTY_SHIFT 2
#define MAX8997_PWM_DUTY_SHIFT 0
struct max8997_haptic {
struct device *dev;
struct i2c_client *client;
struct input_dev *input_dev;
struct regulator *regulator;
struct work_struct work;
struct mutex mutex;
bool enabled;
unsigned int level;
struct pwm_device *pwm;
unsigned int pwm_period;
enum max8997_haptic_pwm_divisor pwm_divisor;
enum max8997_haptic_motor_type type;
enum max8997_haptic_pulse_mode mode;
unsigned int internal_mode_pattern;
unsigned int pattern_cycle;
unsigned int pattern_signal_period;
};
static int max8997_haptic_set_duty_cycle(struct max8997_haptic *chip)
{
int ret = 0;
if (chip->mode == MAX8997_EXTERNAL_MODE) {
unsigned int duty = chip->pwm_period * chip->level / 100;
ret = pwm_config(chip->pwm, duty, chip->pwm_period);
} else {
int i;
u8 duty_index = 0;
for (i = 0; i <= 64; i++) {
if (chip->level <= i * 100 / 64) {
duty_index = i;
break;
}
}
switch (chip->internal_mode_pattern) {
case 0:
max8997_write_reg(chip->client,
MAX8997_HAPTIC_REG_SIGPWMDC1, duty_index);
break;
case 1:
max8997_write_reg(chip->client,
MAX8997_HAPTIC_REG_SIGPWMDC2, duty_index);
break;
case 2:
max8997_write_reg(chip->client,
MAX8997_HAPTIC_REG_SIGPWMDC3, duty_index);
break;
case 3:
max8997_write_reg(chip->client,
MAX8997_HAPTIC_REG_SIGPWMDC4, duty_index);
break;
default:
break;
}
}
return ret;
}
static void max8997_haptic_configure(struct max8997_haptic *chip)
{
u8 value;
value = chip->type << MAX8997_MOTOR_TYPE_SHIFT |
chip->enabled << MAX8997_ENABLE_SHIFT |
chip->mode << MAX8997_MODE_SHIFT | chip->pwm_divisor;
max8997_write_reg(chip->client, MAX8997_HAPTIC_REG_CONF2, value);
if (chip->mode == MAX8997_INTERNAL_MODE && chip->enabled) {
value = chip->internal_mode_pattern << MAX8997_CYCLE_SHIFT |
chip->internal_mode_pattern << MAX8997_SIG_PERIOD_SHIFT |
chip->internal_mode_pattern << MAX8997_SIG_DUTY_SHIFT |
chip->internal_mode_pattern << MAX8997_PWM_DUTY_SHIFT;
max8997_write_reg(chip->client,
MAX8997_HAPTIC_REG_DRVCONF, value);
switch (chip->internal_mode_pattern) {
case 0:
value = chip->pattern_cycle << 4;
max8997_write_reg(chip->client,
MAX8997_HAPTIC_REG_CYCLECONF1, value);
value = chip->pattern_signal_period;
max8997_write_reg(chip->client,
MAX8997_HAPTIC_REG_SIGCONF1, value);
break;
case 1:
value = chip->pattern_cycle;
max8997_write_reg(chip->client,
MAX8997_HAPTIC_REG_CYCLECONF1, value);
value = chip->pattern_signal_period;
max8997_write_reg(chip->client,
MAX8997_HAPTIC_REG_SIGCONF2, value);
break;
case 2:
value = chip->pattern_cycle << 4;
max8997_write_reg(chip->client,
MAX8997_HAPTIC_REG_CYCLECONF2, value);
value = chip->pattern_signal_period;
max8997_write_reg(chip->client,
MAX8997_HAPTIC_REG_SIGCONF3, value);
break;
case 3:
value = chip->pattern_cycle;
max8997_write_reg(chip->client,
MAX8997_HAPTIC_REG_CYCLECONF2, value);
value = chip->pattern_signal_period;
max8997_write_reg(chip->client,
MAX8997_HAPTIC_REG_SIGCONF4, value);
break;
default:
break;
}
}
}
static void max8997_haptic_enable(struct max8997_haptic *chip)
{
int error;
mutex_lock(&chip->mutex);
error = max8997_haptic_set_duty_cycle(chip);
if (error) {
dev_err(chip->dev, "set_pwm_cycle failed, error: %d\n", error);
goto out;
}
if (!chip->enabled) {
chip->enabled = true;
regulator_enable(chip->regulator);
max8997_haptic_configure(chip);
if (chip->mode == MAX8997_EXTERNAL_MODE)
pwm_enable(chip->pwm);
}
out:
mutex_unlock(&chip->mutex);
}
static void max8997_haptic_disable(struct max8997_haptic *chip)
{
mutex_lock(&chip->mutex);
if (chip->enabled) {
chip->enabled = false;
max8997_haptic_configure(chip);
if (chip->mode == MAX8997_EXTERNAL_MODE)
pwm_disable(chip->pwm);
regulator_disable(chip->regulator);
}
mutex_unlock(&chip->mutex);
}
static void max8997_haptic_play_effect_work(struct work_struct *work)
{
struct max8997_haptic *chip =
container_of(work, struct max8997_haptic, work);
if (chip->level)
max8997_haptic_enable(chip);
else
max8997_haptic_disable(chip);
}
static int max8997_haptic_play_effect(struct input_dev *dev, void *data,
struct ff_effect *effect)
{
struct max8997_haptic *chip = input_get_drvdata(dev);
chip->level = effect->u.rumble.strong_magnitude;
if (!chip->level)
chip->level = effect->u.rumble.weak_magnitude;
schedule_work(&chip->work);
return 0;
}
static void max8997_haptic_close(struct input_dev *dev)
{
struct max8997_haptic *chip = input_get_drvdata(dev);
cancel_work_sync(&chip->work);
max8997_haptic_disable(chip);
}
static int max8997_haptic_probe(struct platform_device *pdev)
{
struct max8997_dev *iodev = dev_get_drvdata(pdev->dev.parent);
const struct max8997_platform_data *pdata =
dev_get_platdata(iodev->dev);
const struct max8997_haptic_platform_data *haptic_pdata =
pdata->haptic_pdata;
struct max8997_haptic *chip;
struct input_dev *input_dev;
int error;
if (!haptic_pdata) {
dev_err(&pdev->dev, "no haptic platform data\n");
return -EINVAL;
}
chip = kzalloc(sizeof(struct max8997_haptic), GFP_KERNEL);
input_dev = input_allocate_device();
if (!chip || !input_dev) {
dev_err(&pdev->dev, "unable to allocate memory\n");
error = -ENOMEM;
goto err_free_mem;
}
INIT_WORK(&chip->work, max8997_haptic_play_effect_work);
mutex_init(&chip->mutex);
chip->client = iodev->haptic;
chip->dev = &pdev->dev;
chip->input_dev = input_dev;
chip->pwm_period = haptic_pdata->pwm_period;
chip->type = haptic_pdata->type;
chip->mode = haptic_pdata->mode;
chip->pwm_divisor = haptic_pdata->pwm_divisor;
switch (chip->mode) {
case MAX8997_INTERNAL_MODE:
chip->internal_mode_pattern =
haptic_pdata->internal_mode_pattern;
chip->pattern_cycle = haptic_pdata->pattern_cycle;
chip->pattern_signal_period =
haptic_pdata->pattern_signal_period;
break;
case MAX8997_EXTERNAL_MODE:
chip->pwm = pwm_request(haptic_pdata->pwm_channel_id,
"max8997-haptic");
if (IS_ERR(chip->pwm)) {
error = PTR_ERR(chip->pwm);
dev_err(&pdev->dev,
"unable to request PWM for haptic, error: %d\n",
error);
goto err_free_mem;
}
break;
default:
dev_err(&pdev->dev,
"Invalid chip mode specified (%d)\n", chip->mode);
error = -EINVAL;
goto err_free_mem;
}
chip->regulator = regulator_get(&pdev->dev, "inmotor");
if (IS_ERR(chip->regulator)) {
error = PTR_ERR(chip->regulator);
dev_err(&pdev->dev,
"unable to get regulator, error: %d\n",
error);
goto err_free_pwm;
}
input_dev->name = "max8997-haptic";
input_dev->id.version = 1;
input_dev->dev.parent = &pdev->dev;
input_dev->close = max8997_haptic_close;
input_set_drvdata(input_dev, chip);
input_set_capability(input_dev, EV_FF, FF_RUMBLE);
error = input_ff_create_memless(input_dev, NULL,
max8997_haptic_play_effect);
if (error) {
dev_err(&pdev->dev,
"unable to create FF device, error: %d\n",
error);
goto err_put_regulator;
}
error = input_register_device(input_dev);
if (error) {
dev_err(&pdev->dev,
"unable to register input device, error: %d\n",
error);
goto err_destroy_ff;
}
platform_set_drvdata(pdev, chip);
return 0;
err_destroy_ff:
input_ff_destroy(input_dev);
err_put_regulator:
regulator_put(chip->regulator);
err_free_pwm:
if (chip->mode == MAX8997_EXTERNAL_MODE)
pwm_free(chip->pwm);
err_free_mem:
input_free_device(input_dev);
kfree(chip);
return error;
}
static int max8997_haptic_remove(struct platform_device *pdev)
{
struct max8997_haptic *chip = platform_get_drvdata(pdev);
input_unregister_device(chip->input_dev);
regulator_put(chip->regulator);
if (chip->mode == MAX8997_EXTERNAL_MODE)
pwm_free(chip->pwm);
kfree(chip);
return 0;
}
#ifdef CONFIG_PM_SLEEP
static int max8997_haptic_suspend(struct device *dev)
{
struct platform_device *pdev = to_platform_device(dev);
struct max8997_haptic *chip = platform_get_drvdata(pdev);
max8997_haptic_disable(chip);
return 0;
}
#endif
static SIMPLE_DEV_PM_OPS(max8997_haptic_pm_ops, max8997_haptic_suspend, NULL);
static const struct platform_device_id max8997_haptic_id[] = {
{ "max8997-haptic", 0 },
{ },
};
MODULE_DEVICE_TABLE(i2c, max8997_haptic_id);
static struct platform_driver max8997_haptic_driver = {
.driver = {
.name = "max8997-haptic",
.owner = THIS_MODULE,
.pm = &max8997_haptic_pm_ops,
},
.probe = max8997_haptic_probe,
.remove = max8997_haptic_remove,
.id_table = max8997_haptic_id,
};
module_platform_driver(max8997_haptic_driver);
MODULE_ALIAS("platform:max8997-haptic");
MODULE_AUTHOR("Donggeun Kim <dg77.kim@samsung.com>");
MODULE_DESCRIPTION("max8997_haptic driver");
MODULE_LICENSE("GPL");

272
drivers/input/misc/mc13783-pwrbutton.c Normal file
View File

@@ -0,0 +1,272 @@
/**
* Copyright (C) 2011 Philippe Rétornaz
*
* Based on twl4030-pwrbutton driver by:
* Peter De Schrijver <peter.de-schrijver@nokia.com>
* Felipe Balbi <felipe.balbi@nokia.com>
*
* This file is subject to the terms and conditions of the GNU General
* Public License. See the file "COPYING" in the main directory of this
* archive for more details.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Suite 500, Boston, MA 02110-1335 USA
*/
#include <linux/module.h>
#include <linux/init.h>
#include <linux/kernel.h>
#include <linux/errno.h>
#include <linux/input.h>
#include <linux/interrupt.h>
#include <linux/platform_device.h>
#include <linux/mfd/mc13783.h>
#include <linux/sched.h>
#include <linux/slab.h>
struct mc13783_pwrb {
struct input_dev *pwr;
struct mc13xxx *mc13783;
#define MC13783_PWRB_B1_POL_INVERT (1 << 0)
#define MC13783_PWRB_B2_POL_INVERT (1 << 1)
#define MC13783_PWRB_B3_POL_INVERT (1 << 2)
int flags;
unsigned short keymap[3];
};
#define MC13783_REG_INTERRUPT_SENSE_1 5
#define MC13783_IRQSENSE1_ONOFD1S (1 << 3)
#define MC13783_IRQSENSE1_ONOFD2S (1 << 4)
#define MC13783_IRQSENSE1_ONOFD3S (1 << 5)
#define MC13783_REG_POWER_CONTROL_2 15
#define MC13783_POWER_CONTROL_2_ON1BDBNC 4
#define MC13783_POWER_CONTROL_2_ON2BDBNC 6
#define MC13783_POWER_CONTROL_2_ON3BDBNC 8
#define MC13783_POWER_CONTROL_2_ON1BRSTEN (1 << 1)
#define MC13783_POWER_CONTROL_2_ON2BRSTEN (1 << 2)
#define MC13783_POWER_CONTROL_2_ON3BRSTEN (1 << 3)
static irqreturn_t button_irq(int irq, void *_priv)
{
struct mc13783_pwrb *priv = _priv;
int val;
mc13xxx_irq_ack(priv->mc13783, irq);
mc13xxx_reg_read(priv->mc13783, MC13783_REG_INTERRUPT_SENSE_1, &val);
switch (irq) {
case MC13783_IRQ_ONOFD1:
val = val & MC13783_IRQSENSE1_ONOFD1S ? 1 : 0;
if (priv->flags & MC13783_PWRB_B1_POL_INVERT)
val ^= 1;
input_report_key(priv->pwr, priv->keymap[0], val);
break;
case MC13783_IRQ_ONOFD2:
val = val & MC13783_IRQSENSE1_ONOFD2S ? 1 : 0;
if (priv->flags & MC13783_PWRB_B2_POL_INVERT)
val ^= 1;
input_report_key(priv->pwr, priv->keymap[1], val);
break;
case MC13783_IRQ_ONOFD3:
val = val & MC13783_IRQSENSE1_ONOFD3S ? 1 : 0;
if (priv->flags & MC13783_PWRB_B3_POL_INVERT)
val ^= 1;
input_report_key(priv->pwr, priv->keymap[2], val);
break;
}
input_sync(priv->pwr);
return IRQ_HANDLED;
}
static int mc13783_pwrbutton_probe(struct platform_device *pdev)
{
const struct mc13xxx_buttons_platform_data *pdata;
struct mc13xxx *mc13783 = dev_get_drvdata(pdev->dev.parent);
struct input_dev *pwr;
struct mc13783_pwrb *priv;
int err = 0;
int reg = 0;
pdata = dev_get_platdata(&pdev->dev);
if (!pdata) {
dev_err(&pdev->dev, "missing platform data\n");
return -ENODEV;
}
pwr = input_allocate_device();
if (!pwr) {
dev_dbg(&pdev->dev, "Can't allocate power button\n");
return -ENOMEM;
}
priv = kzalloc(sizeof(*priv), GFP_KERNEL);
if (!priv) {
err = -ENOMEM;
dev_dbg(&pdev->dev, "Can't allocate power button\n");
goto free_input_dev;
}
reg |= (pdata->b1on_flags & 0x3) << MC13783_POWER_CONTROL_2_ON1BDBNC;
reg |= (pdata->b2on_flags & 0x3) << MC13783_POWER_CONTROL_2_ON2BDBNC;
reg |= (pdata->b3on_flags & 0x3) << MC13783_POWER_CONTROL_2_ON3BDBNC;
priv->pwr = pwr;
priv->mc13783 = mc13783;
mc13xxx_lock(mc13783);
if (pdata->b1on_flags & MC13783_BUTTON_ENABLE) {
priv->keymap[0] = pdata->b1on_key;
if (pdata->b1on_key != KEY_RESERVED)
__set_bit(pdata->b1on_key, pwr->keybit);
if (pdata->b1on_flags & MC13783_BUTTON_POL_INVERT)
priv->flags |= MC13783_PWRB_B1_POL_INVERT;
if (pdata->b1on_flags & MC13783_BUTTON_RESET_EN)
reg |= MC13783_POWER_CONTROL_2_ON1BRSTEN;
err = mc13xxx_irq_request(mc13783, MC13783_IRQ_ONOFD1,
button_irq, "b1on", priv);
if (err) {
dev_dbg(&pdev->dev, "Can't request irq\n");
goto free_priv;
}
}
if (pdata->b2on_flags & MC13783_BUTTON_ENABLE) {
priv->keymap[1] = pdata->b2on_key;
if (pdata->b2on_key != KEY_RESERVED)
__set_bit(pdata->b2on_key, pwr->keybit);
if (pdata->b2on_flags & MC13783_BUTTON_POL_INVERT)
priv->flags |= MC13783_PWRB_B2_POL_INVERT;
if (pdata->b2on_flags & MC13783_BUTTON_RESET_EN)
reg |= MC13783_POWER_CONTROL_2_ON2BRSTEN;
err = mc13xxx_irq_request(mc13783, MC13783_IRQ_ONOFD2,
button_irq, "b2on", priv);
if (err) {
dev_dbg(&pdev->dev, "Can't request irq\n");
goto free_irq_b1;
}
}
if (pdata->b3on_flags & MC13783_BUTTON_ENABLE) {
priv->keymap[2] = pdata->b3on_key;
if (pdata->b3on_key != KEY_RESERVED)
__set_bit(pdata->b3on_key, pwr->keybit);
if (pdata->b3on_flags & MC13783_BUTTON_POL_INVERT)
priv->flags |= MC13783_PWRB_B3_POL_INVERT;
if (pdata->b3on_flags & MC13783_BUTTON_RESET_EN)
reg |= MC13783_POWER_CONTROL_2_ON3BRSTEN;
err = mc13xxx_irq_request(mc13783, MC13783_IRQ_ONOFD3,
button_irq, "b3on", priv);
if (err) {
dev_dbg(&pdev->dev, "Can't request irq: %d\n", err);
goto free_irq_b2;
}
}
mc13xxx_reg_rmw(mc13783, MC13783_REG_POWER_CONTROL_2, 0x3FE, reg);
mc13xxx_unlock(mc13783);
pwr->name = "mc13783_pwrbutton";
pwr->phys = "mc13783_pwrbutton/input0";
pwr->dev.parent = &pdev->dev;
pwr->keycode = priv->keymap;
pwr->keycodemax = ARRAY_SIZE(priv->keymap);
pwr->keycodesize = sizeof(priv->keymap[0]);
__set_bit(EV_KEY, pwr->evbit);
err = input_register_device(pwr);
if (err) {
dev_dbg(&pdev->dev, "Can't register power button: %d\n", err);
goto free_irq;
}
platform_set_drvdata(pdev, priv);
return 0;
free_irq:
mc13xxx_lock(mc13783);
if (pdata->b3on_flags & MC13783_BUTTON_ENABLE)
mc13xxx_irq_free(mc13783, MC13783_IRQ_ONOFD3, priv);
free_irq_b2:
if (pdata->b2on_flags & MC13783_BUTTON_ENABLE)
mc13xxx_irq_free(mc13783, MC13783_IRQ_ONOFD2, priv);
free_irq_b1:
if (pdata->b1on_flags & MC13783_BUTTON_ENABLE)
mc13xxx_irq_free(mc13783, MC13783_IRQ_ONOFD1, priv);
free_priv:
mc13xxx_unlock(mc13783);
kfree(priv);
free_input_dev:
input_free_device(pwr);
return err;
}
static int mc13783_pwrbutton_remove(struct platform_device *pdev)
{
struct mc13783_pwrb *priv = platform_get_drvdata(pdev);
const struct mc13xxx_buttons_platform_data *pdata;
pdata = dev_get_platdata(&pdev->dev);
mc13xxx_lock(priv->mc13783);
if (pdata->b3on_flags & MC13783_BUTTON_ENABLE)
mc13xxx_irq_free(priv->mc13783, MC13783_IRQ_ONOFD3, priv);
if (pdata->b2on_flags & MC13783_BUTTON_ENABLE)
mc13xxx_irq_free(priv->mc13783, MC13783_IRQ_ONOFD2, priv);
if (pdata->b1on_flags & MC13783_BUTTON_ENABLE)
mc13xxx_irq_free(priv->mc13783, MC13783_IRQ_ONOFD1, priv);
mc13xxx_unlock(priv->mc13783);
input_unregister_device(priv->pwr);
kfree(priv);
platform_set_drvdata(pdev, NULL);
return 0;
}
static struct platform_driver mc13783_pwrbutton_driver = {
.probe = mc13783_pwrbutton_probe,
.remove = mc13783_pwrbutton_remove,
.driver = {
.name = "mc13783-pwrbutton",
.owner = THIS_MODULE,
},
};
module_platform_driver(mc13783_pwrbutton_driver);
MODULE_ALIAS("platform:mc13783-pwrbutton");
MODULE_DESCRIPTION("MC13783 Power Button");
MODULE_LICENSE("GPL v2");
MODULE_AUTHOR("Philippe Retornaz");

254
drivers/input/misc/mma8450.c Normal file
View File

@@ -0,0 +1,254 @@
/*
* Driver for Freescale's 3-Axis Accelerometer MMA8450
*
* Copyright (C) 2011 Freescale Semiconductor, Inc. All Rights Reserved.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/slab.h>
#include <linux/delay.h>
#include <linux/i2c.h>
#include <linux/input-polldev.h>
#include <linux/of_device.h>
#define MMA8450_DRV_NAME "mma8450"
#define MODE_CHANGE_DELAY_MS 100
#define POLL_INTERVAL 100
#define POLL_INTERVAL_MAX 500
/* register definitions */
#define MMA8450_STATUS 0x00
#define MMA8450_STATUS_ZXYDR 0x08
#define MMA8450_OUT_X8 0x01
#define MMA8450_OUT_Y8 0x02
#define MMA8450_OUT_Z8 0x03
#define MMA8450_OUT_X_LSB 0x05
#define MMA8450_OUT_X_MSB 0x06
#define MMA8450_OUT_Y_LSB 0x07
#define MMA8450_OUT_Y_MSB 0x08
#define MMA8450_OUT_Z_LSB 0x09
#define MMA8450_OUT_Z_MSB 0x0a
#define MMA8450_XYZ_DATA_CFG 0x16
#define MMA8450_CTRL_REG1 0x38
#define MMA8450_CTRL_REG2 0x39
/* mma8450 status */
struct mma8450 {
struct i2c_client *client;
struct input_polled_dev *idev;
};
static int mma8450_read(struct mma8450 *m, unsigned off)
{
struct i2c_client *c = m->client;
int ret;
ret = i2c_smbus_read_byte_data(c, off);
if (ret < 0)
dev_err(&c->dev,
"failed to read register 0x%02x, error %d\n",
off, ret);
return ret;
}
static int mma8450_write(struct mma8450 *m, unsigned off, u8 v)
{
struct i2c_client *c = m->client;
int error;
error = i2c_smbus_write_byte_data(c, off, v);
if (error < 0) {
dev_err(&c->dev,
"failed to write to register 0x%02x, error %d\n",
off, error);
return error;
}
return 0;
}
static int mma8450_read_block(struct mma8450 *m, unsigned off,
u8 *buf, size_t size)
{
struct i2c_client *c = m->client;
int err;
err = i2c_smbus_read_i2c_block_data(c, off, size, buf);
if (err < 0) {
dev_err(&c->dev,
"failed to read block data at 0x%02x, error %d\n",
MMA8450_OUT_X_LSB, err);
return err;
}
return 0;
}
static void mma8450_poll(struct input_polled_dev *dev)
{
struct mma8450 *m = dev->private;
int x, y, z;
int ret;
u8 buf[6];
ret = mma8450_read(m, MMA8450_STATUS);
if (ret < 0)
return;
if (!(ret & MMA8450_STATUS_ZXYDR))
return;
ret = mma8450_read_block(m, MMA8450_OUT_X_LSB, buf, sizeof(buf));
if (ret < 0)
return;
x = ((int)(s8)buf[1] << 4) | (buf[0] & 0xf);
y = ((int)(s8)buf[3] << 4) | (buf[2] & 0xf);
z = ((int)(s8)buf[5] << 4) | (buf[4] & 0xf);
input_report_abs(dev->input, ABS_X, x);
input_report_abs(dev->input, ABS_Y, y);
input_report_abs(dev->input, ABS_Z, z);
input_sync(dev->input);
}
/* Initialize the MMA8450 chip */
static void mma8450_open(struct input_polled_dev *dev)
{
struct mma8450 *m = dev->private;
int err;
/* enable all events from X/Y/Z, no FIFO */
err = mma8450_write(m, MMA8450_XYZ_DATA_CFG, 0x07);
if (err)
return;
/*
* Sleep mode poll rate - 50Hz
* System output data rate - 400Hz
* Full scale selection - Active, +/- 2G
*/
err = mma8450_write(m, MMA8450_CTRL_REG1, 0x01);
if (err < 0)
return;
msleep(MODE_CHANGE_DELAY_MS);
}
static void mma8450_close(struct input_polled_dev *dev)
{
struct mma8450 *m = dev->private;
mma8450_write(m, MMA8450_CTRL_REG1, 0x00);
mma8450_write(m, MMA8450_CTRL_REG2, 0x01);
}
/*
* I2C init/probing/exit functions
*/
static int mma8450_probe(struct i2c_client *c,
const struct i2c_device_id *id)
{
struct input_polled_dev *idev;
struct mma8450 *m;
int err;
m = kzalloc(sizeof(struct mma8450), GFP_KERNEL);
idev = input_allocate_polled_device();
if (!m || !idev) {
err = -ENOMEM;
goto err_free_mem;
}
m->client = c;
m->idev = idev;
idev->private = m;
idev->input->name = MMA8450_DRV_NAME;
idev->input->id.bustype = BUS_I2C;
idev->poll = mma8450_poll;
idev->poll_interval = POLL_INTERVAL;
idev->poll_interval_max = POLL_INTERVAL_MAX;
idev->open = mma8450_open;
idev->close = mma8450_close;
__set_bit(EV_ABS, idev->input->evbit);
input_set_abs_params(idev->input, ABS_X, -2048, 2047, 32, 32);
input_set_abs_params(idev->input, ABS_Y, -2048, 2047, 32, 32);
input_set_abs_params(idev->input, ABS_Z, -2048, 2047, 32, 32);
err = input_register_polled_device(idev);
if (err) {
dev_err(&c->dev, "failed to register polled input device\n");
goto err_free_mem;
}
return 0;
err_free_mem:
input_free_polled_device(idev);
kfree(m);
return err;
}
static int mma8450_remove(struct i2c_client *c)
{
struct mma8450 *m = i2c_get_clientdata(c);
struct input_polled_dev *idev = m->idev;
input_unregister_polled_device(idev);
input_free_polled_device(idev);
kfree(m);
return 0;
}
static const struct i2c_device_id mma8450_id[] = {
{ MMA8450_DRV_NAME, 0 },
{ },
};
MODULE_DEVICE_TABLE(i2c, mma8450_id);
static const struct of_device_id mma8450_dt_ids[] = {
{ .compatible = "fsl,mma8450", },
{ /* sentinel */ }
};
MODULE_DEVICE_TABLE(of, mma8450_dt_ids);
static struct i2c_driver mma8450_driver = {
.driver = {
.name = MMA8450_DRV_NAME,
.owner = THIS_MODULE,
.of_match_table = mma8450_dt_ids,
},
.probe = mma8450_probe,
.remove = mma8450_remove,
.id_table = mma8450_id,
};
module_i2c_driver(mma8450_driver);
MODULE_AUTHOR("Freescale Semiconductor, Inc.");
MODULE_DESCRIPTION("MMA8450 3-Axis Accelerometer Driver");
MODULE_LICENSE("GPL");

482
drivers/input/misc/mpu3050.c Normal file
View File

@@ -0,0 +1,482 @@
/*
* MPU3050 Tri-axis gyroscope driver
*
* Copyright (C) 2011 Wistron Co.Ltd
* Joseph Lai <joseph_lai@wistron.com>
*
* Trimmed down by Alan Cox <alan@linux.intel.com> to produce this version
*
* This is a 'lite' version of the driver, while we consider the right way
* to present the other features to user space. In particular it requires the
* device has an IRQ, and it only provides an input interface, so is not much
* use for device orientation. A fuller version is available from the Meego
* tree.
*
* This program is based on bma023.c.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; version 2 of the License.
*
* This program is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* General Public License for more details.
*
* You should have received a copy of the GNU General Public License along
* with this program; if not, write to the Free Software Foundation, Inc.,
* 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
*
*/
#include <linux/module.h>
#include <linux/init.h>
#include <linux/interrupt.h>
#include <linux/platform_device.h>
#include <linux/mutex.h>
#include <linux/err.h>
#include <linux/i2c.h>
#include <linux/input.h>
#include <linux/delay.h>
#include <linux/slab.h>
#include <linux/pm_runtime.h>
#define MPU3050_CHIP_ID 0x69
#define MPU3050_AUTO_DELAY 1000
#define MPU3050_MIN_VALUE -32768
#define MPU3050_MAX_VALUE 32767
#define MPU3050_DEFAULT_POLL_INTERVAL 200
#define MPU3050_DEFAULT_FS_RANGE 3
/* Register map */
#define MPU3050_CHIP_ID_REG 0x00
#define MPU3050_SMPLRT_DIV 0x15
#define MPU3050_DLPF_FS_SYNC 0x16
#define MPU3050_INT_CFG 0x17
#define MPU3050_XOUT_H 0x1D
#define MPU3050_PWR_MGM 0x3E
#define MPU3050_PWR_MGM_POS 6
/* Register bits */
/* DLPF_FS_SYNC */
#define MPU3050_EXT_SYNC_NONE 0x00
#define MPU3050_EXT_SYNC_TEMP 0x20
#define MPU3050_EXT_SYNC_GYROX 0x40
#define MPU3050_EXT_SYNC_GYROY 0x60
#define MPU3050_EXT_SYNC_GYROZ 0x80
#define MPU3050_EXT_SYNC_ACCELX 0xA0
#define MPU3050_EXT_SYNC_ACCELY 0xC0
#define MPU3050_EXT_SYNC_ACCELZ 0xE0
#define MPU3050_EXT_SYNC_MASK 0xE0
#define MPU3050_FS_250DPS 0x00
#define MPU3050_FS_500DPS 0x08
#define MPU3050_FS_1000DPS 0x10
#define MPU3050_FS_2000DPS 0x18
#define MPU3050_FS_MASK 0x18
#define MPU3050_DLPF_CFG_256HZ_NOLPF2 0x00
#define MPU3050_DLPF_CFG_188HZ 0x01
#define MPU3050_DLPF_CFG_98HZ 0x02
#define MPU3050_DLPF_CFG_42HZ 0x03
#define MPU3050_DLPF_CFG_20HZ 0x04
#define MPU3050_DLPF_CFG_10HZ 0x05
#define MPU3050_DLPF_CFG_5HZ 0x06
#define MPU3050_DLPF_CFG_2100HZ_NOLPF 0x07
#define MPU3050_DLPF_CFG_MASK 0x07
/* INT_CFG */
#define MPU3050_RAW_RDY_EN 0x01
#define MPU3050_MPU_RDY_EN 0x02
#define MPU3050_LATCH_INT_EN 0x04
/* PWR_MGM */
#define MPU3050_PWR_MGM_PLL_X 0x01
#define MPU3050_PWR_MGM_PLL_Y 0x02
#define MPU3050_PWR_MGM_PLL_Z 0x03
#define MPU3050_PWR_MGM_CLKSEL 0x07
#define MPU3050_PWR_MGM_STBY_ZG 0x08
#define MPU3050_PWR_MGM_STBY_YG 0x10
#define MPU3050_PWR_MGM_STBY_XG 0x20
#define MPU3050_PWR_MGM_SLEEP 0x40
#define MPU3050_PWR_MGM_RESET 0x80
#define MPU3050_PWR_MGM_MASK 0x40
struct axis_data {
s16 x;
s16 y;
s16 z;
};
struct mpu3050_sensor {
struct i2c_client *client;
struct device *dev;
struct input_dev *idev;
};
/**
* mpu3050_xyz_read_reg - read the axes values
* @buffer: provide register addr and get register
* @length: length of register
*
* Reads the register values in one transaction or returns a negative
* error code on failure.
*/
static int mpu3050_xyz_read_reg(struct i2c_client *client,
u8 *buffer, int length)
{
/*
* Annoying we can't make this const because the i2c layer doesn't
* declare input buffers const.
*/
char cmd = MPU3050_XOUT_H;
struct i2c_msg msg[] = {
{
.addr = client->addr,
.flags = 0,
.len = 1,
.buf = &cmd,
},
{
.addr = client->addr,
.flags = I2C_M_RD,
.len = length,
.buf = buffer,
},
};
return i2c_transfer(client->adapter, msg, 2);
}
/**
* mpu3050_read_xyz - get co-ordinates from device
* @client: i2c address of sensor
* @coords: co-ordinates to update
*
* Return the converted X Y and Z co-ordinates from the sensor device
*/
static void mpu3050_read_xyz(struct i2c_client *client,
struct axis_data *coords)
{
u16 buffer[3];
mpu3050_xyz_read_reg(client, (u8 *)buffer, 6);
coords->x = be16_to_cpu(buffer[0]);
coords->y = be16_to_cpu(buffer[1]);
coords->z = be16_to_cpu(buffer[2]);
dev_dbg(&client->dev, "%s: x %d, y %d, z %d\n", __func__,
coords->x, coords->y, coords->z);
}
/**
* mpu3050_set_power_mode - set the power mode
* @client: i2c client for the sensor
* @val: value to switch on/off of power, 1: normal power, 0: low power
*
* Put device to normal-power mode or low-power mode.
*/
static void mpu3050_set_power_mode(struct i2c_client *client, u8 val)
{
u8 value;
value = i2c_smbus_read_byte_data(client, MPU3050_PWR_MGM);
value = (value & ~MPU3050_PWR_MGM_MASK) |
(((val << MPU3050_PWR_MGM_POS) & MPU3050_PWR_MGM_MASK) ^
MPU3050_PWR_MGM_MASK);
i2c_smbus_write_byte_data(client, MPU3050_PWR_MGM, value);
}
/**
* mpu3050_input_open - called on input event open
* @input: input dev of opened device
*
* The input layer calls this function when input event is opened. The
* function will push the device to resume. Then, the device is ready
* to provide data.
*/
static int mpu3050_input_open(struct input_dev *input)
{
struct mpu3050_sensor *sensor = input_get_drvdata(input);
int error;
pm_runtime_get(sensor->dev);
/* Enable interrupts */
error = i2c_smbus_write_byte_data(sensor->client, MPU3050_INT_CFG,
MPU3050_LATCH_INT_EN |
MPU3050_RAW_RDY_EN |
MPU3050_MPU_RDY_EN);
if (error < 0) {
pm_runtime_put(sensor->dev);
return error;
}
return 0;
}
/**
* mpu3050_input_close - called on input event close
* @input: input dev of closed device
*
* The input layer calls this function when input event is closed. The
* function will push the device to suspend.
*/
static void mpu3050_input_close(struct input_dev *input)
{
struct mpu3050_sensor *sensor = input_get_drvdata(input);
pm_runtime_put(sensor->dev);
}
/**
* mpu3050_interrupt_thread - handle an IRQ
* @irq: interrupt numner
* @data: the sensor
*
* Called by the kernel single threaded after an interrupt occurs. Read
* the sensor data and generate an input event for it.
*/
static irqreturn_t mpu3050_interrupt_thread(int irq, void *data)
{
struct mpu3050_sensor *sensor = data;
struct axis_data axis;
mpu3050_read_xyz(sensor->client, &axis);
input_report_abs(sensor->idev, ABS_X, axis.x);
input_report_abs(sensor->idev, ABS_Y, axis.y);
input_report_abs(sensor->idev, ABS_Z, axis.z);
input_sync(sensor->idev);
return IRQ_HANDLED;
}
/**
* mpu3050_hw_init - initialize hardware
* @sensor: the sensor
*
* Called during device probe; configures the sampling method.
*/
static int mpu3050_hw_init(struct mpu3050_sensor *sensor)
{
struct i2c_client *client = sensor->client;
int ret;
u8 reg;
/* Reset */
ret = i2c_smbus_write_byte_data(client, MPU3050_PWR_MGM,
MPU3050_PWR_MGM_RESET);
if (ret < 0)
return ret;
ret = i2c_smbus_read_byte_data(client, MPU3050_PWR_MGM);
if (ret < 0)
return ret;
ret &= ~MPU3050_PWR_MGM_CLKSEL;
ret |= MPU3050_PWR_MGM_PLL_Z;
ret = i2c_smbus_write_byte_data(client, MPU3050_PWR_MGM, ret);
if (ret < 0)
return ret;
/* Output frequency divider. The poll interval */
ret = i2c_smbus_write_byte_data(client, MPU3050_SMPLRT_DIV,
MPU3050_DEFAULT_POLL_INTERVAL - 1);
if (ret < 0)
return ret;
/* Set low pass filter and full scale */
reg = MPU3050_DEFAULT_FS_RANGE;
reg |= MPU3050_DLPF_CFG_42HZ << 3;
reg |= MPU3050_EXT_SYNC_NONE << 5;
ret = i2c_smbus_write_byte_data(client, MPU3050_DLPF_FS_SYNC, reg);
if (ret < 0)
return ret;
return 0;
}
/**
* mpu3050_probe - device detection callback
* @client: i2c client of found device
* @id: id match information
*
* The I2C layer calls us when it believes a sensor is present at this
* address. Probe to see if this is correct and to validate the device.
*
* If present install the relevant sysfs interfaces and input device.
*/
static int mpu3050_probe(struct i2c_client *client,
const struct i2c_device_id *id)
{
struct mpu3050_sensor *sensor;
struct input_dev *idev;
int ret;
int error;
sensor = kzalloc(sizeof(struct mpu3050_sensor), GFP_KERNEL);
idev = input_allocate_device();
if (!sensor || !idev) {
dev_err(&client->dev, "failed to allocate driver data\n");
error = -ENOMEM;
goto err_free_mem;
}
sensor->client = client;
sensor->dev = &client->dev;
sensor->idev = idev;
mpu3050_set_power_mode(client, 1);
msleep(10);
ret = i2c_smbus_read_byte_data(client, MPU3050_CHIP_ID_REG);
if (ret < 0) {
dev_err(&client->dev, "failed to detect device\n");
error = -ENXIO;
goto err_free_mem;
}
if (ret != MPU3050_CHIP_ID) {
dev_err(&client->dev, "unsupported chip id\n");
error = -ENXIO;
goto err_free_mem;
}
idev->name = "MPU3050";
idev->id.bustype = BUS_I2C;
idev->dev.parent = &client->dev;
idev->open = mpu3050_input_open;
idev->close = mpu3050_input_close;
__set_bit(EV_ABS, idev->evbit);
input_set_abs_params(idev, ABS_X,
MPU3050_MIN_VALUE, MPU3050_MAX_VALUE, 0, 0);
input_set_abs_params(idev, ABS_Y,
MPU3050_MIN_VALUE, MPU3050_MAX_VALUE, 0, 0);
input_set_abs_params(idev, ABS_Z,
MPU3050_MIN_VALUE, MPU3050_MAX_VALUE, 0, 0);
input_set_drvdata(idev, sensor);
pm_runtime_set_active(&client->dev);
error = mpu3050_hw_init(sensor);
if (error)
goto err_pm_set_suspended;
error = request_threaded_irq(client->irq,
NULL, mpu3050_interrupt_thread,
IRQF_TRIGGER_RISING | IRQF_ONESHOT,
"mpu3050", sensor);
if (error) {
dev_err(&client->dev,
"can't get IRQ %d, error %d\n", client->irq, error);
goto err_pm_set_suspended;
}
error = input_register_device(idev);
if (error) {
dev_err(&client->dev, "failed to register input device\n");
goto err_free_irq;
}
pm_runtime_enable(&client->dev);
pm_runtime_set_autosuspend_delay(&client->dev, MPU3050_AUTO_DELAY);
return 0;
err_free_irq:
free_irq(client->irq, sensor);
err_pm_set_suspended:
pm_runtime_set_suspended(&client->dev);
err_free_mem:
input_free_device(idev);
kfree(sensor);
return error;
}
/**
* mpu3050_remove - remove a sensor
* @client: i2c client of sensor being removed
*
* Our sensor is going away, clean up the resources.
*/
static int mpu3050_remove(struct i2c_client *client)
{
struct mpu3050_sensor *sensor = i2c_get_clientdata(client);
pm_runtime_disable(&client->dev);
pm_runtime_set_suspended(&client->dev);
free_irq(client->irq, sensor);
input_unregister_device(sensor->idev);
kfree(sensor);
return 0;
}
#ifdef CONFIG_PM
/**
* mpu3050_suspend - called on device suspend
* @dev: device being suspended
*
* Put the device into sleep mode before we suspend the machine.
*/
static int mpu3050_suspend(struct device *dev)
{
struct i2c_client *client = to_i2c_client(dev);
mpu3050_set_power_mode(client, 0);
return 0;
}
/**
* mpu3050_resume - called on device resume
* @dev: device being resumed
*
* Put the device into powered mode on resume.
*/
static int mpu3050_resume(struct device *dev)
{
struct i2c_client *client = to_i2c_client(dev);
mpu3050_set_power_mode(client, 1);
msleep(100); /* wait for gyro chip resume */
return 0;
}
#endif
static UNIVERSAL_DEV_PM_OPS(mpu3050_pm, mpu3050_suspend, mpu3050_resume, NULL);
static const struct i2c_device_id mpu3050_ids[] = {
{ "mpu3050", 0 },
{ }
};
MODULE_DEVICE_TABLE(i2c, mpu3050_ids);
static const struct of_device_id mpu3050_of_match[] = {
{ .compatible = "invn,mpu3050", },
{ },
};
MODULE_DEVICE_TABLE(of, mpu3050_of_match);
static struct i2c_driver mpu3050_i2c_driver = {
.driver = {
.name = "mpu3050",
.owner = THIS_MODULE,
.pm = &mpu3050_pm,
.of_match_table = mpu3050_of_match,
},
.probe = mpu3050_probe,
.remove = mpu3050_remove,
.id_table = mpu3050_ids,
};
module_i2c_driver(mpu3050_i2c_driver);
MODULE_AUTHOR("Wistron Corp.");
MODULE_DESCRIPTION("MPU3050 Tri-axis gyroscope driver");
MODULE_LICENSE("GPL");

133
drivers/input/misc/pcap_keys.c Normal file
View File

@@ -0,0 +1,133 @@
/*
* Input driver for PCAP events:
* * Power key
* * Headphone button
*
* Copyright (c) 2008,2009 Ilya Petrov <ilya.muromec@gmail.com>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*
*/
#include <linux/module.h>
#include <linux/init.h>
#include <linux/interrupt.h>
#include <linux/platform_device.h>
#include <linux/input.h>
#include <linux/mfd/ezx-pcap.h>
#include <linux/slab.h>
struct pcap_keys {
struct pcap_chip *pcap;
struct input_dev *input;
};
/* PCAP2 interrupts us on keypress */
static irqreturn_t pcap_keys_handler(int irq, void *_pcap_keys)
{
struct pcap_keys *pcap_keys = _pcap_keys;
int pirq = irq_to_pcap(pcap_keys->pcap, irq);
u32 pstat;
ezx_pcap_read(pcap_keys->pcap, PCAP_REG_PSTAT, &pstat);
pstat &= 1 << pirq;
switch (pirq) {
case PCAP_IRQ_ONOFF:
input_report_key(pcap_keys->input, KEY_POWER, !pstat);
break;
case PCAP_IRQ_MIC:
input_report_key(pcap_keys->input, KEY_HP, !pstat);
break;
}
input_sync(pcap_keys->input);
return IRQ_HANDLED;
}
static int pcap_keys_probe(struct platform_device *pdev)
{
int err = -ENOMEM;
struct pcap_keys *pcap_keys;
struct input_dev *input_dev;
pcap_keys = kmalloc(sizeof(struct pcap_keys), GFP_KERNEL);
if (!pcap_keys)
return err;
pcap_keys->pcap = dev_get_drvdata(pdev->dev.parent);
input_dev = input_allocate_device();
if (!input_dev)
goto fail;
pcap_keys->input = input_dev;
platform_set_drvdata(pdev, pcap_keys);
input_dev->name = pdev->name;
input_dev->phys = "pcap-keys/input0";
input_dev->id.bustype = BUS_HOST;
input_dev->dev.parent = &pdev->dev;
__set_bit(EV_KEY, input_dev->evbit);
__set_bit(KEY_POWER, input_dev->keybit);
__set_bit(KEY_HP, input_dev->keybit);
err = input_register_device(input_dev);
if (err)
goto fail_allocate;
err = request_irq(pcap_to_irq(pcap_keys->pcap, PCAP_IRQ_ONOFF),
pcap_keys_handler, 0, "Power key", pcap_keys);
if (err)
goto fail_register;
err = request_irq(pcap_to_irq(pcap_keys->pcap, PCAP_IRQ_MIC),
pcap_keys_handler, 0, "Headphone button", pcap_keys);
if (err)
goto fail_pwrkey;
return 0;
fail_pwrkey:
free_irq(pcap_to_irq(pcap_keys->pcap, PCAP_IRQ_ONOFF), pcap_keys);
fail_register:
input_unregister_device(input_dev);
goto fail;
fail_allocate:
input_free_device(input_dev);
fail:
kfree(pcap_keys);
return err;
}
static int pcap_keys_remove(struct platform_device *pdev)
{
struct pcap_keys *pcap_keys = platform_get_drvdata(pdev);
free_irq(pcap_to_irq(pcap_keys->pcap, PCAP_IRQ_ONOFF), pcap_keys);
free_irq(pcap_to_irq(pcap_keys->pcap, PCAP_IRQ_MIC), pcap_keys);
input_unregister_device(pcap_keys->input);
kfree(pcap_keys);
return 0;
}
static struct platform_driver pcap_keys_device_driver = {
.probe = pcap_keys_probe,
.remove = pcap_keys_remove,
.driver = {
.name = "pcap-keys",
.owner = THIS_MODULE,
}
};
module_platform_driver(pcap_keys_device_driver);
MODULE_DESCRIPTION("Motorola PCAP2 input events driver");
MODULE_AUTHOR("Ilya Petrov <ilya.muromec@gmail.com>");
MODULE_LICENSE("GPL");
MODULE_ALIAS("platform:pcap_keys");

121
drivers/input/misc/pcf50633-input.c Normal file
View File

@@ -0,0 +1,121 @@
/* NXP PCF50633 Input Driver
*
* (C) 2006-2008 by Openmoko, Inc.
* Author: Balaji Rao <balajirrao@openmoko.org>
* All rights reserved.
*
* Broken down from monstrous PCF50633 driver mainly by
* Harald Welte, Andy Green and Werner Almesberger
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by the
* Free Software Foundation; either version 2 of the License, or (at your
* option) any later version.
*
*/
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/init.h>
#include <linux/device.h>
#include <linux/platform_device.h>
#include <linux/input.h>
#include <linux/slab.h>
#include <linux/mfd/pcf50633/core.h>
#define PCF50633_OOCSTAT_ONKEY 0x01
#define PCF50633_REG_OOCSTAT 0x12
#define PCF50633_REG_OOCMODE 0x10
struct pcf50633_input {
struct pcf50633 *pcf;
struct input_dev *input_dev;
};
static void
pcf50633_input_irq(int irq, void *data)
{
struct pcf50633_input *input;
int onkey_released;
input = data;
/* We report only one event depending on the key press status */
onkey_released = pcf50633_reg_read(input->pcf, PCF50633_REG_OOCSTAT)
& PCF50633_OOCSTAT_ONKEY;
if (irq == PCF50633_IRQ_ONKEYF && !onkey_released)
input_report_key(input->input_dev, KEY_POWER, 1);
else if (irq == PCF50633_IRQ_ONKEYR && onkey_released)
input_report_key(input->input_dev, KEY_POWER, 0);
input_sync(input->input_dev);
}
static int pcf50633_input_probe(struct platform_device *pdev)
{
struct pcf50633_input *input;
struct input_dev *input_dev;
int ret;
input = kzalloc(sizeof(*input), GFP_KERNEL);
if (!input)
return -ENOMEM;
input_dev = input_allocate_device();
if (!input_dev) {
kfree(input);
return -ENOMEM;
}
platform_set_drvdata(pdev, input);
input->pcf = dev_to_pcf50633(pdev->dev.parent);
input->input_dev = input_dev;
input_dev->name = "PCF50633 PMU events";
input_dev->id.bustype = BUS_I2C;
input_dev->evbit[0] = BIT(EV_KEY) | BIT(EV_PWR);
set_bit(KEY_POWER, input_dev->keybit);
ret = input_register_device(input_dev);
if (ret) {
input_free_device(input_dev);
kfree(input);
return ret;
}
pcf50633_register_irq(input->pcf, PCF50633_IRQ_ONKEYR,
pcf50633_input_irq, input);
pcf50633_register_irq(input->pcf, PCF50633_IRQ_ONKEYF,
pcf50633_input_irq, input);
return 0;
}
static int pcf50633_input_remove(struct platform_device *pdev)
{
struct pcf50633_input *input = platform_get_drvdata(pdev);
pcf50633_free_irq(input->pcf, PCF50633_IRQ_ONKEYR);
pcf50633_free_irq(input->pcf, PCF50633_IRQ_ONKEYF);
input_unregister_device(input->input_dev);
kfree(input);
return 0;
}
static struct platform_driver pcf50633_input_driver = {
.driver = {
.name = "pcf50633-input",
},
.probe = pcf50633_input_probe,
.remove = pcf50633_input_remove,
};
module_platform_driver(pcf50633_input_driver);
MODULE_AUTHOR("Balaji Rao <balajirrao@openmoko.org>");
MODULE_DESCRIPTION("PCF50633 input driver");
MODULE_LICENSE("GPL");
MODULE_ALIAS("platform:pcf50633-input");

223
drivers/input/misc/pcf8574_keypad.c Normal file
View File

@@ -0,0 +1,223 @@
/*
* Driver for a keypad w/16 buttons connected to a PCF8574 I2C I/O expander
*
* Copyright 2005-2008 Analog Devices Inc.
*
* Licensed under the GPL-2 or later.
*/
#include <linux/module.h>
#include <linux/init.h>
#include <linux/input.h>
#include <linux/interrupt.h>
#include <linux/i2c.h>
#include <linux/slab.h>
#include <linux/workqueue.h>
#define DRV_NAME "pcf8574_keypad"
static const unsigned char pcf8574_kp_btncode[] = {
[0] = KEY_RESERVED,
[1] = KEY_ENTER,
[2] = KEY_BACKSLASH,
[3] = KEY_0,
[4] = KEY_RIGHTBRACE,
[5] = KEY_C,
[6] = KEY_9,
[7] = KEY_8,
[8] = KEY_7,
[9] = KEY_B,
[10] = KEY_6,
[11] = KEY_5,
[12] = KEY_4,
[13] = KEY_A,
[14] = KEY_3,
[15] = KEY_2,
[16] = KEY_1
};
struct kp_data {
unsigned short btncode[ARRAY_SIZE(pcf8574_kp_btncode)];
struct input_dev *idev;
struct i2c_client *client;
char name[64];
char phys[32];
unsigned char laststate;
};
static short read_state(struct kp_data *lp)
{
unsigned char x, y, a, b;
i2c_smbus_write_byte(lp->client, 240);
x = 0xF & (~(i2c_smbus_read_byte(lp->client) >> 4));
i2c_smbus_write_byte(lp->client, 15);
y = 0xF & (~i2c_smbus_read_byte(lp->client));
for (a = 0; x > 0; a++)
x = x >> 1;
for (b = 0; y > 0; b++)
y = y >> 1;
return ((a - 1) * 4) + b;
}
static irqreturn_t pcf8574_kp_irq_handler(int irq, void *dev_id)
{
struct kp_data *lp = dev_id;
unsigned char nextstate = read_state(lp);
if (lp->laststate != nextstate) {
int key_down = nextstate < ARRAY_SIZE(lp->btncode);
unsigned short keycode = key_down ?
lp->btncode[nextstate] : lp->btncode[lp->laststate];
input_report_key(lp->idev, keycode, key_down);
input_sync(lp->idev);
lp->laststate = nextstate;
}
return IRQ_HANDLED;
}
static int pcf8574_kp_probe(struct i2c_client *client, const struct i2c_device_id *id)
{
int i, ret;
struct input_dev *idev;
struct kp_data *lp;
if (i2c_smbus_write_byte(client, 240) < 0) {
dev_err(&client->dev, "probe: write fail\n");
return -ENODEV;
}
lp = kzalloc(sizeof(*lp), GFP_KERNEL);
if (!lp)
return -ENOMEM;
idev = input_allocate_device();
if (!idev) {
dev_err(&client->dev, "Can't allocate input device\n");
ret = -ENOMEM;
goto fail_allocate;
}
lp->idev = idev;
lp->client = client;
idev->evbit[0] = BIT_MASK(EV_KEY);
idev->keycode = lp->btncode;
idev->keycodesize = sizeof(lp->btncode[0]);
idev->keycodemax = ARRAY_SIZE(lp->btncode);
for (i = 0; i < ARRAY_SIZE(pcf8574_kp_btncode); i++) {
lp->btncode[i] = pcf8574_kp_btncode[i];
__set_bit(lp->btncode[i] & KEY_MAX, idev->keybit);
}
sprintf(lp->name, DRV_NAME);
sprintf(lp->phys, "kp_data/input0");
idev->name = lp->name;
idev->phys = lp->phys;
idev->id.bustype = BUS_I2C;
idev->id.vendor = 0x0001;
idev->id.product = 0x0001;
idev->id.version = 0x0100;
lp->laststate = read_state(lp);
ret = request_threaded_irq(client->irq, NULL, pcf8574_kp_irq_handler,
IRQF_TRIGGER_LOW | IRQF_ONESHOT,
DRV_NAME, lp);
if (ret) {
dev_err(&client->dev, "IRQ %d is not free\n", client->irq);
goto fail_free_device;
}
ret = input_register_device(idev);
if (ret) {
dev_err(&client->dev, "input_register_device() failed\n");
goto fail_free_irq;
}
i2c_set_clientdata(client, lp);
return 0;
fail_free_irq:
free_irq(client->irq, lp);
fail_free_device:
input_free_device(idev);
fail_allocate:
kfree(lp);
return ret;
}
static int pcf8574_kp_remove(struct i2c_client *client)
{
struct kp_data *lp = i2c_get_clientdata(client);
free_irq(client->irq, lp);
input_unregister_device(lp->idev);
kfree(lp);
return 0;
}
#ifdef CONFIG_PM
static int pcf8574_kp_resume(struct device *dev)
{
struct i2c_client *client = to_i2c_client(dev);
enable_irq(client->irq);
return 0;
}
static int pcf8574_kp_suspend(struct device *dev)
{
struct i2c_client *client = to_i2c_client(dev);
disable_irq(client->irq);
return 0;
}
static const struct dev_pm_ops pcf8574_kp_pm_ops = {
.suspend = pcf8574_kp_suspend,
.resume = pcf8574_kp_resume,
};
#else
# define pcf8574_kp_resume NULL
# define pcf8574_kp_suspend NULL
#endif
static const struct i2c_device_id pcf8574_kp_id[] = {
{ DRV_NAME, 0 },
{ }
};
MODULE_DEVICE_TABLE(i2c, pcf8574_kp_id);
static struct i2c_driver pcf8574_kp_driver = {
.driver = {
.name = DRV_NAME,
.owner = THIS_MODULE,
#ifdef CONFIG_PM
.pm = &pcf8574_kp_pm_ops,
#endif
},
.probe = pcf8574_kp_probe,
.remove = pcf8574_kp_remove,
.id_table = pcf8574_kp_id,
};
module_i2c_driver(pcf8574_kp_driver);
MODULE_AUTHOR("Michael Hennerich");
MODULE_DESCRIPTION("Keypad input driver for 16 keys connected to PCF8574");
MODULE_LICENSE("GPL");

138
drivers/input/misc/pcspkr.c Normal file
View File

@@ -0,0 +1,138 @@
/*
* PC Speaker beeper driver for Linux
*
* Copyright (c) 2002 Vojtech Pavlik
* Copyright (c) 1992 Orest Zborowski
*
*/
/*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 as published by
* the Free Software Foundation
*/
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/i8253.h>
#include <linux/init.h>
#include <linux/input.h>
#include <linux/platform_device.h>
#include <linux/timex.h>
#include <asm/io.h>
MODULE_AUTHOR("Vojtech Pavlik <vojtech@ucw.cz>");
MODULE_DESCRIPTION("PC Speaker beeper driver");
MODULE_LICENSE("GPL");
MODULE_ALIAS("platform:pcspkr");
static int pcspkr_event(struct input_dev *dev, unsigned int type, unsigned int code, int value)
{
unsigned int count = 0;
unsigned long flags;
if (type != EV_SND)
return -1;
switch (code) {
case SND_BELL: if (value) value = 1000;
case SND_TONE: break;
default: return -1;
}
if (value > 20 && value < 32767)
count = PIT_TICK_RATE / value;
raw_spin_lock_irqsave(&i8253_lock, flags);
if (count) {
/* set command for counter 2, 2 byte write */
outb_p(0xB6, 0x43);
/* select desired HZ */
outb_p(count & 0xff, 0x42);
outb((count >> 8) & 0xff, 0x42);
/* enable counter 2 */
outb_p(inb_p(0x61) | 3, 0x61);
} else {
/* disable counter 2 */
outb(inb_p(0x61) & 0xFC, 0x61);
}
raw_spin_unlock_irqrestore(&i8253_lock, flags);
return 0;
}
static int pcspkr_probe(struct platform_device *dev)
{
struct input_dev *pcspkr_dev;
int err;
pcspkr_dev = input_allocate_device();
if (!pcspkr_dev)
return -ENOMEM;
pcspkr_dev->name = "PC Speaker";
pcspkr_dev->phys = "isa0061/input0";
pcspkr_dev->id.bustype = BUS_ISA;
pcspkr_dev->id.vendor = 0x001f;
pcspkr_dev->id.product = 0x0001;
pcspkr_dev->id.version = 0x0100;
pcspkr_dev->dev.parent = &dev->dev;
pcspkr_dev->evbit[0] = BIT_MASK(EV_SND);
pcspkr_dev->sndbit[0] = BIT_MASK(SND_BELL) | BIT_MASK(SND_TONE);
pcspkr_dev->event = pcspkr_event;
err = input_register_device(pcspkr_dev);
if (err) {
input_free_device(pcspkr_dev);
return err;
}
platform_set_drvdata(dev, pcspkr_dev);
return 0;
}
static int pcspkr_remove(struct platform_device *dev)
{
struct input_dev *pcspkr_dev = platform_get_drvdata(dev);
input_unregister_device(pcspkr_dev);
platform_set_drvdata(dev, NULL);
/* turn off the speaker */
pcspkr_event(NULL, EV_SND, SND_BELL, 0);
return 0;
}
static int pcspkr_suspend(struct device *dev)
{
pcspkr_event(NULL, EV_SND, SND_BELL, 0);
return 0;
}
static void pcspkr_shutdown(struct platform_device *dev)
{
/* turn off the speaker */
pcspkr_event(NULL, EV_SND, SND_BELL, 0);
}
static const struct dev_pm_ops pcspkr_pm_ops = {
.suspend = pcspkr_suspend,
};
static struct platform_driver pcspkr_platform_driver = {
.driver = {
.name = "pcspkr",
.owner = THIS_MODULE,
.pm = &pcspkr_pm_ops,
},
.probe = pcspkr_probe,
.remove = pcspkr_remove,
.shutdown = pcspkr_shutdown,
};
module_platform_driver(pcspkr_platform_driver);

285
drivers/input/misc/pm8xxx-vibrator.c Normal file
View File

@@ -0,0 +1,285 @@
/* Copyright (c) 2010-2011, Code Aurora Forum. All rights reserved.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 and
* only version 2 as published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*/
#include <linux/module.h>
#include <linux/init.h>
#include <linux/kernel.h>
#include <linux/errno.h>
#include <linux/platform_device.h>
#include <linux/input.h>
#include <linux/slab.h>
#include <linux/mfd/pm8xxx/core.h>
#define VIB_DRV 0x4A
#define VIB_DRV_SEL_MASK 0xf8
#define VIB_DRV_SEL_SHIFT 0x03
#define VIB_DRV_EN_MANUAL_MASK 0xfc
#define VIB_MAX_LEVEL_mV (3100)
#define VIB_MIN_LEVEL_mV (1200)
#define VIB_MAX_LEVELS (VIB_MAX_LEVEL_mV - VIB_MIN_LEVEL_mV)
#define MAX_FF_SPEED 0xff
/**
* struct pm8xxx_vib - structure to hold vibrator data
* @vib_input_dev: input device supporting force feedback
* @work: work structure to set the vibration parameters
* @dev: device supporting force feedback
* @speed: speed of vibration set from userland
* @active: state of vibrator
* @level: level of vibration to set in the chip
* @reg_vib_drv: VIB_DRV register value
*/
struct pm8xxx_vib {
struct input_dev *vib_input_dev;
struct work_struct work;
struct device *dev;
int speed;
int level;
bool active;
u8 reg_vib_drv;
};
/**
* pm8xxx_vib_read_u8 - helper to read a byte from pmic chip
* @vib: pointer to vibrator structure
* @data: placeholder for data to be read
* @reg: register address
*/
static int pm8xxx_vib_read_u8(struct pm8xxx_vib *vib,
u8 *data, u16 reg)
{
int rc;
rc = pm8xxx_readb(vib->dev->parent, reg, data);
if (rc < 0)
dev_warn(vib->dev, "Error reading pm8xxx reg 0x%x(0x%x)\n",
reg, rc);
return rc;
}
/**
* pm8xxx_vib_write_u8 - helper to write a byte to pmic chip
* @vib: pointer to vibrator structure
* @data: data to write
* @reg: register address
*/
static int pm8xxx_vib_write_u8(struct pm8xxx_vib *vib,
u8 data, u16 reg)
{
int rc;
rc = pm8xxx_writeb(vib->dev->parent, reg, data);
if (rc < 0)
dev_warn(vib->dev, "Error writing pm8xxx reg 0x%x(0x%x)\n",
reg, rc);
return rc;
}
/**
* pm8xxx_vib_set - handler to start/stop vibration
* @vib: pointer to vibrator structure
* @on: state to set
*/
static int pm8xxx_vib_set(struct pm8xxx_vib *vib, bool on)
{
int rc;
u8 val = vib->reg_vib_drv;
if (on)
val |= ((vib->level << VIB_DRV_SEL_SHIFT) & VIB_DRV_SEL_MASK);
else
val &= ~VIB_DRV_SEL_MASK;
rc = pm8xxx_vib_write_u8(vib, val, VIB_DRV);
if (rc < 0)
return rc;
vib->reg_vib_drv = val;
return 0;
}
/**
* pm8xxx_work_handler - worker to set vibration level
* @work: pointer to work_struct
*/
static void pm8xxx_work_handler(struct work_struct *work)
{
struct pm8xxx_vib *vib = container_of(work, struct pm8xxx_vib, work);
int rc;
u8 val;
rc = pm8xxx_vib_read_u8(vib, &val, VIB_DRV);
if (rc < 0)
return;
/*
* pmic vibrator supports voltage ranges from 1.2 to 3.1V, so
* scale the level to fit into these ranges.
*/
if (vib->speed) {
vib->active = true;
vib->level = ((VIB_MAX_LEVELS * vib->speed) / MAX_FF_SPEED) +
VIB_MIN_LEVEL_mV;
vib->level /= 100;
} else {
vib->active = false;
vib->level = VIB_MIN_LEVEL_mV / 100;
}
pm8xxx_vib_set(vib, vib->active);
}
/**
* pm8xxx_vib_close - callback of input close callback
* @dev: input device pointer
*
* Turns off the vibrator.
*/
static void pm8xxx_vib_close(struct input_dev *dev)
{
struct pm8xxx_vib *vib = input_get_drvdata(dev);
cancel_work_sync(&vib->work);
if (vib->active)
pm8xxx_vib_set(vib, false);
}
/**
* pm8xxx_vib_play_effect - function to handle vib effects.
* @dev: input device pointer
* @data: data of effect
* @effect: effect to play
*
* Currently this driver supports only rumble effects.
*/
static int pm8xxx_vib_play_effect(struct input_dev *dev, void *data,
struct ff_effect *effect)
{
struct pm8xxx_vib *vib = input_get_drvdata(dev);
vib->speed = effect->u.rumble.strong_magnitude >> 8;
if (!vib->speed)
vib->speed = effect->u.rumble.weak_magnitude >> 9;
schedule_work(&vib->work);
return 0;
}
static int pm8xxx_vib_probe(struct platform_device *pdev)
{
struct pm8xxx_vib *vib;
struct input_dev *input_dev;
int error;
u8 val;
vib = kzalloc(sizeof(*vib), GFP_KERNEL);
input_dev = input_allocate_device();
if (!vib || !input_dev) {
dev_err(&pdev->dev, "couldn't allocate memory\n");
error = -ENOMEM;
goto err_free_mem;
}
INIT_WORK(&vib->work, pm8xxx_work_handler);
vib->dev = &pdev->dev;
vib->vib_input_dev = input_dev;
/* operate in manual mode */
error = pm8xxx_vib_read_u8(vib, &val, VIB_DRV);
if (error < 0)
goto err_free_mem;
val &= ~VIB_DRV_EN_MANUAL_MASK;
error = pm8xxx_vib_write_u8(vib, val, VIB_DRV);
if (error < 0)
goto err_free_mem;
vib->reg_vib_drv = val;
input_dev->name = "pm8xxx_vib_ffmemless";
input_dev->id.version = 1;
input_dev->dev.parent = &pdev->dev;
input_dev->close = pm8xxx_vib_close;
input_set_drvdata(input_dev, vib);
input_set_capability(vib->vib_input_dev, EV_FF, FF_RUMBLE);
error = input_ff_create_memless(input_dev, NULL,
pm8xxx_vib_play_effect);
if (error) {
dev_err(&pdev->dev,
"couldn't register vibrator as FF device\n");
goto err_free_mem;
}
error = input_register_device(input_dev);
if (error) {
dev_err(&pdev->dev, "couldn't register input device\n");
goto err_destroy_memless;
}
platform_set_drvdata(pdev, vib);
return 0;
err_destroy_memless:
input_ff_destroy(input_dev);
err_free_mem:
input_free_device(input_dev);
kfree(vib);
return error;
}
static int pm8xxx_vib_remove(struct platform_device *pdev)
{
struct pm8xxx_vib *vib = platform_get_drvdata(pdev);
input_unregister_device(vib->vib_input_dev);
kfree(vib);
platform_set_drvdata(pdev, NULL);
return 0;
}
#ifdef CONFIG_PM_SLEEP
static int pm8xxx_vib_suspend(struct device *dev)
{
struct pm8xxx_vib *vib = dev_get_drvdata(dev);
/* Turn off the vibrator */
pm8xxx_vib_set(vib, false);
return 0;
}
#endif
static SIMPLE_DEV_PM_OPS(pm8xxx_vib_pm_ops, pm8xxx_vib_suspend, NULL);
static struct platform_driver pm8xxx_vib_driver = {
.probe = pm8xxx_vib_probe,
.remove = pm8xxx_vib_remove,
.driver = {
.name = "pm8xxx-vib",
.owner = THIS_MODULE,
.pm = &pm8xxx_vib_pm_ops,
},
};
module_platform_driver(pm8xxx_vib_driver);
MODULE_ALIAS("platform:pm8xxx_vib");
MODULE_DESCRIPTION("PMIC8xxx vibrator driver based on ff-memless framework");
MODULE_LICENSE("GPL v2");
MODULE_AUTHOR("Amy Maloche <amaloche@codeaurora.org>");

221
drivers/input/misc/pmic8xxx-pwrkey.c Normal file
View File

@@ -0,0 +1,221 @@
/* Copyright (c) 2010-2011, Code Aurora Forum. All rights reserved.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 and
* only version 2 as published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*/
#include <linux/module.h>
#include <linux/init.h>
#include <linux/kernel.h>
#include <linux/errno.h>
#include <linux/slab.h>
#include <linux/input.h>
#include <linux/interrupt.h>
#include <linux/platform_device.h>
#include <linux/log2.h>
#include <linux/mfd/pm8xxx/core.h>
#include <linux/input/pmic8xxx-pwrkey.h>
#define PON_CNTL_1 0x1C
#define PON_CNTL_PULL_UP BIT(7)
#define PON_CNTL_TRIG_DELAY_MASK (0x7)
/**
* struct pmic8xxx_pwrkey - pmic8xxx pwrkey information
* @key_press_irq: key press irq number
*/
struct pmic8xxx_pwrkey {
struct input_dev *pwr;
int key_press_irq;
};
static irqreturn_t pwrkey_press_irq(int irq, void *_pwrkey)
{
struct pmic8xxx_pwrkey *pwrkey = _pwrkey;
input_report_key(pwrkey->pwr, KEY_POWER, 1);
input_sync(pwrkey->pwr);
return IRQ_HANDLED;
}
static irqreturn_t pwrkey_release_irq(int irq, void *_pwrkey)
{
struct pmic8xxx_pwrkey *pwrkey = _pwrkey;
input_report_key(pwrkey->pwr, KEY_POWER, 0);
input_sync(pwrkey->pwr);
return IRQ_HANDLED;
}
#ifdef CONFIG_PM_SLEEP
static int pmic8xxx_pwrkey_suspend(struct device *dev)
{
struct pmic8xxx_pwrkey *pwrkey = dev_get_drvdata(dev);
if (device_may_wakeup(dev))
enable_irq_wake(pwrkey->key_press_irq);
return 0;
}
static int pmic8xxx_pwrkey_resume(struct device *dev)
{
struct pmic8xxx_pwrkey *pwrkey = dev_get_drvdata(dev);
if (device_may_wakeup(dev))
disable_irq_wake(pwrkey->key_press_irq);
return 0;
}
#endif
static SIMPLE_DEV_PM_OPS(pm8xxx_pwr_key_pm_ops,
pmic8xxx_pwrkey_suspend, pmic8xxx_pwrkey_resume);
static int pmic8xxx_pwrkey_probe(struct platform_device *pdev)
{
struct input_dev *pwr;
int key_release_irq = platform_get_irq(pdev, 0);
int key_press_irq = platform_get_irq(pdev, 1);
int err;
unsigned int delay;
u8 pon_cntl;
struct pmic8xxx_pwrkey *pwrkey;
const struct pm8xxx_pwrkey_platform_data *pdata =
dev_get_platdata(&pdev->dev);
if (!pdata) {
dev_err(&pdev->dev, "power key platform data not supplied\n");
return -EINVAL;
}
if (pdata->kpd_trigger_delay_us > 62500) {
dev_err(&pdev->dev, "invalid power key trigger delay\n");
return -EINVAL;
}
pwrkey = kzalloc(sizeof(*pwrkey), GFP_KERNEL);
if (!pwrkey)
return -ENOMEM;
pwr = input_allocate_device();
if (!pwr) {
dev_dbg(&pdev->dev, "Can't allocate power button\n");
err = -ENOMEM;
goto free_pwrkey;
}
input_set_capability(pwr, EV_KEY, KEY_POWER);
pwr->name = "pmic8xxx_pwrkey";
pwr->phys = "pmic8xxx_pwrkey/input0";
pwr->dev.parent = &pdev->dev;
delay = (pdata->kpd_trigger_delay_us << 10) / USEC_PER_SEC;
delay = 1 + ilog2(delay);
err = pm8xxx_readb(pdev->dev.parent, PON_CNTL_1, &pon_cntl);
if (err < 0) {
dev_err(&pdev->dev, "failed reading PON_CNTL_1 err=%d\n", err);
goto free_input_dev;
}
pon_cntl &= ~PON_CNTL_TRIG_DELAY_MASK;
pon_cntl |= (delay & PON_CNTL_TRIG_DELAY_MASK);
if (pdata->pull_up)
pon_cntl |= PON_CNTL_PULL_UP;
else
pon_cntl &= ~PON_CNTL_PULL_UP;
err = pm8xxx_writeb(pdev->dev.parent, PON_CNTL_1, pon_cntl);
if (err < 0) {
dev_err(&pdev->dev, "failed writing PON_CNTL_1 err=%d\n", err);
goto free_input_dev;
}
err = input_register_device(pwr);
if (err) {
dev_dbg(&pdev->dev, "Can't register power key: %d\n", err);
goto free_input_dev;
}
pwrkey->key_press_irq = key_press_irq;
pwrkey->pwr = pwr;
platform_set_drvdata(pdev, pwrkey);
err = request_irq(key_press_irq, pwrkey_press_irq,
IRQF_TRIGGER_RISING, "pmic8xxx_pwrkey_press", pwrkey);
if (err < 0) {
dev_dbg(&pdev->dev, "Can't get %d IRQ for pwrkey: %d\n",
key_press_irq, err);
goto unreg_input_dev;
}
err = request_irq(key_release_irq, pwrkey_release_irq,
IRQF_TRIGGER_RISING, "pmic8xxx_pwrkey_release", pwrkey);
if (err < 0) {
dev_dbg(&pdev->dev, "Can't get %d IRQ for pwrkey: %d\n",
key_release_irq, err);
goto free_press_irq;
}
device_init_wakeup(&pdev->dev, pdata->wakeup);
return 0;
free_press_irq:
free_irq(key_press_irq, NULL);
unreg_input_dev:
platform_set_drvdata(pdev, NULL);
input_unregister_device(pwr);
pwr = NULL;
free_input_dev:
input_free_device(pwr);
free_pwrkey:
kfree(pwrkey);
return err;
}
static int pmic8xxx_pwrkey_remove(struct platform_device *pdev)
{
struct pmic8xxx_pwrkey *pwrkey = platform_get_drvdata(pdev);
int key_release_irq = platform_get_irq(pdev, 0);
int key_press_irq = platform_get_irq(pdev, 1);
device_init_wakeup(&pdev->dev, 0);
free_irq(key_press_irq, pwrkey);
free_irq(key_release_irq, pwrkey);
input_unregister_device(pwrkey->pwr);
platform_set_drvdata(pdev, NULL);
kfree(pwrkey);
return 0;
}
static struct platform_driver pmic8xxx_pwrkey_driver = {
.probe = pmic8xxx_pwrkey_probe,
.remove = pmic8xxx_pwrkey_remove,
.driver = {
.name = PM8XXX_PWRKEY_DEV_NAME,
.owner = THIS_MODULE,
.pm = &pm8xxx_pwr_key_pm_ops,
},
};
module_platform_driver(pmic8xxx_pwrkey_driver);
MODULE_ALIAS("platform:pmic8xxx_pwrkey");
MODULE_DESCRIPTION("PMIC8XXX Power Key driver");
MODULE_LICENSE("GPL v2");
MODULE_AUTHOR("Trilok Soni <tsoni@codeaurora.org>");

453
drivers/input/misc/powermate.c Normal file
View File

@@ -0,0 +1,453 @@
/*
* A driver for the Griffin Technology, Inc. "PowerMate" USB controller dial.
*
* v1.1, (c)2002 William R Sowerbutts <will@sowerbutts.com>
*
* This device is a anodised aluminium knob which connects over USB. It can measure
* clockwise and anticlockwise rotation. The dial also acts as a pushbutton with
* a spring for automatic release. The base contains a pair of LEDs which illuminate
* the translucent base. It rotates without limit and reports its relative rotation
* back to the host when polled by the USB controller.
*
* Testing with the knob I have has shown that it measures approximately 94 "clicks"
* for one full rotation. Testing with my High Speed Rotation Actuator (ok, it was
* a variable speed cordless electric drill) has shown that the device can measure
* speeds of up to 7 clicks either clockwise or anticlockwise between pollings from
* the host. If it counts more than 7 clicks before it is polled, it will wrap back
* to zero and start counting again. This was at quite high speed, however, almost
* certainly faster than the human hand could turn it. Griffin say that it loses a
* pulse or two on a direction change; the granularity is so fine that I never
* noticed this in practice.
*
* The device's microcontroller can be programmed to set the LED to either a constant
* intensity, or to a rhythmic pulsing. Several patterns and speeds are available.
*
* Griffin were very happy to provide documentation and free hardware for development.
*
* Some userspace tools are available on the web: http://sowerbutts.com/powermate/
*
*/
#include <linux/kernel.h>
#include <linux/slab.h>
#include <linux/module.h>
#include <linux/init.h>
#include <linux/spinlock.h>
#include <linux/usb/input.h>
#define POWERMATE_VENDOR 0x077d /* Griffin Technology, Inc. */
#define POWERMATE_PRODUCT_NEW 0x0410 /* Griffin PowerMate */
#define POWERMATE_PRODUCT_OLD 0x04AA /* Griffin soundKnob */
#define CONTOUR_VENDOR 0x05f3 /* Contour Design, Inc. */
#define CONTOUR_JOG 0x0240 /* Jog and Shuttle */
/* these are the command codes we send to the device */
#define SET_STATIC_BRIGHTNESS 0x01
#define SET_PULSE_ASLEEP 0x02
#define SET_PULSE_AWAKE 0x03
#define SET_PULSE_MODE 0x04
/* these refer to bits in the powermate_device's requires_update field. */
#define UPDATE_STATIC_BRIGHTNESS (1<<0)
#define UPDATE_PULSE_ASLEEP (1<<1)
#define UPDATE_PULSE_AWAKE (1<<2)
#define UPDATE_PULSE_MODE (1<<3)
/* at least two versions of the hardware exist, with differing payload
sizes. the first three bytes always contain the "interesting" data in
the relevant format. */
#define POWERMATE_PAYLOAD_SIZE_MAX 6
#define POWERMATE_PAYLOAD_SIZE_MIN 3
struct powermate_device {
signed char *data;
dma_addr_t data_dma;
struct urb *irq, *config;
struct usb_ctrlrequest *configcr;
struct usb_device *udev;
struct usb_interface *intf;
struct input_dev *input;
spinlock_t lock;
int static_brightness;
int pulse_speed;
int pulse_table;
int pulse_asleep;
int pulse_awake;
int requires_update; // physical settings which are out of sync
char phys[64];
};
static char pm_name_powermate[] = "Griffin PowerMate";
static char pm_name_soundknob[] = "Griffin SoundKnob";
static void powermate_config_complete(struct urb *urb);
/* Callback for data arriving from the PowerMate over the USB interrupt pipe */
static void powermate_irq(struct urb *urb)
{
struct powermate_device *pm = urb->context;
struct device *dev = &pm->intf->dev;
int retval;
switch (urb->status) {
case 0:
/* success */
break;
case -ECONNRESET:
case -ENOENT:
case -ESHUTDOWN:
/* this urb is terminated, clean up */
dev_dbg(dev, "%s - urb shutting down with status: %d\n",
__func__, urb->status);
return;
default:
dev_dbg(dev, "%s - nonzero urb status received: %d\n",
__func__, urb->status);
goto exit;
}
/* handle updates to device state */
input_report_key(pm->input, BTN_0, pm->data[0] & 0x01);
input_report_rel(pm->input, REL_DIAL, pm->data[1]);
input_sync(pm->input);
exit:
retval = usb_submit_urb (urb, GFP_ATOMIC);
if (retval)
dev_err(dev, "%s - usb_submit_urb failed with result: %d\n",
__func__, retval);
}
/* Decide if we need to issue a control message and do so. Must be called with pm->lock taken */
static void powermate_sync_state(struct powermate_device *pm)
{
if (pm->requires_update == 0)
return; /* no updates are required */
if (pm->config->status == -EINPROGRESS)
return; /* an update is already in progress; it'll issue this update when it completes */
if (pm->requires_update & UPDATE_PULSE_ASLEEP){
pm->configcr->wValue = cpu_to_le16( SET_PULSE_ASLEEP );
pm->configcr->wIndex = cpu_to_le16( pm->pulse_asleep ? 1 : 0 );
pm->requires_update &= ~UPDATE_PULSE_ASLEEP;
}else if (pm->requires_update & UPDATE_PULSE_AWAKE){
pm->configcr->wValue = cpu_to_le16( SET_PULSE_AWAKE );
pm->configcr->wIndex = cpu_to_le16( pm->pulse_awake ? 1 : 0 );
pm->requires_update &= ~UPDATE_PULSE_AWAKE;
}else if (pm->requires_update & UPDATE_PULSE_MODE){
int op, arg;
/* the powermate takes an operation and an argument for its pulse algorithm.
the operation can be:
0: divide the speed
1: pulse at normal speed
2: multiply the speed
the argument only has an effect for operations 0 and 2, and ranges between
1 (least effect) to 255 (maximum effect).
thus, several states are equivalent and are coalesced into one state.
we map this onto a range from 0 to 510, with:
0 -- 254 -- use divide (0 = slowest)
255 -- use normal speed
256 -- 510 -- use multiple (510 = fastest).
Only values of 'arg' quite close to 255 are particularly useful/spectacular.
*/
if (pm->pulse_speed < 255) {
op = 0; // divide
arg = 255 - pm->pulse_speed;
} else if (pm->pulse_speed > 255) {
op = 2; // multiply
arg = pm->pulse_speed - 255;
} else {
op = 1; // normal speed
arg = 0; // can be any value
}
pm->configcr->wValue = cpu_to_le16( (pm->pulse_table << 8) | SET_PULSE_MODE );
pm->configcr->wIndex = cpu_to_le16( (arg << 8) | op );
pm->requires_update &= ~UPDATE_PULSE_MODE;
} else if (pm->requires_update & UPDATE_STATIC_BRIGHTNESS) {
pm->configcr->wValue = cpu_to_le16( SET_STATIC_BRIGHTNESS );
pm->configcr->wIndex = cpu_to_le16( pm->static_brightness );
pm->requires_update &= ~UPDATE_STATIC_BRIGHTNESS;
} else {
printk(KERN_ERR "powermate: unknown update required");
pm->requires_update = 0; /* fudge the bug */
return;
}
/* printk("powermate: %04x %04x\n", pm->configcr->wValue, pm->configcr->wIndex); */
pm->configcr->bRequestType = 0x41; /* vendor request */
pm->configcr->bRequest = 0x01;
pm->configcr->wLength = 0;
usb_fill_control_urb(pm->config, pm->udev, usb_sndctrlpipe(pm->udev, 0),
(void *) pm->configcr, NULL, 0,
powermate_config_complete, pm);
if (usb_submit_urb(pm->config, GFP_ATOMIC))
printk(KERN_ERR "powermate: usb_submit_urb(config) failed");
}
/* Called when our asynchronous control message completes. We may need to issue another immediately */
static void powermate_config_complete(struct urb *urb)
{
struct powermate_device *pm = urb->context;
unsigned long flags;
if (urb->status)
printk(KERN_ERR "powermate: config urb returned %d\n", urb->status);
spin_lock_irqsave(&pm->lock, flags);
powermate_sync_state(pm);
spin_unlock_irqrestore(&pm->lock, flags);
}
/* Set the LED up as described and begin the sync with the hardware if required */
static void powermate_pulse_led(struct powermate_device *pm, int static_brightness, int pulse_speed,
int pulse_table, int pulse_asleep, int pulse_awake)
{
unsigned long flags;
if (pulse_speed < 0)
pulse_speed = 0;
if (pulse_table < 0)
pulse_table = 0;
if (pulse_speed > 510)
pulse_speed = 510;
if (pulse_table > 2)
pulse_table = 2;
pulse_asleep = !!pulse_asleep;
pulse_awake = !!pulse_awake;
spin_lock_irqsave(&pm->lock, flags);
/* mark state updates which are required */
if (static_brightness != pm->static_brightness) {
pm->static_brightness = static_brightness;
pm->requires_update |= UPDATE_STATIC_BRIGHTNESS;
}
if (pulse_asleep != pm->pulse_asleep) {
pm->pulse_asleep = pulse_asleep;
pm->requires_update |= (UPDATE_PULSE_ASLEEP | UPDATE_STATIC_BRIGHTNESS);
}
if (pulse_awake != pm->pulse_awake) {
pm->pulse_awake = pulse_awake;
pm->requires_update |= (UPDATE_PULSE_AWAKE | UPDATE_STATIC_BRIGHTNESS);
}
if (pulse_speed != pm->pulse_speed || pulse_table != pm->pulse_table) {
pm->pulse_speed = pulse_speed;
pm->pulse_table = pulse_table;
pm->requires_update |= UPDATE_PULSE_MODE;
}
powermate_sync_state(pm);
spin_unlock_irqrestore(&pm->lock, flags);
}
/* Callback from the Input layer when an event arrives from userspace to configure the LED */
static int powermate_input_event(struct input_dev *dev, unsigned int type, unsigned int code, int _value)
{
unsigned int command = (unsigned int)_value;
struct powermate_device *pm = input_get_drvdata(dev);
if (type == EV_MSC && code == MSC_PULSELED){
/*
bits 0- 7: 8 bits: LED brightness
bits 8-16: 9 bits: pulsing speed modifier (0 ... 510); 0-254 = slower, 255 = standard, 256-510 = faster.
bits 17-18: 2 bits: pulse table (0, 1, 2 valid)
bit 19: 1 bit : pulse whilst asleep?
bit 20: 1 bit : pulse constantly?
*/
int static_brightness = command & 0xFF; // bits 0-7
int pulse_speed = (command >> 8) & 0x1FF; // bits 8-16
int pulse_table = (command >> 17) & 0x3; // bits 17-18
int pulse_asleep = (command >> 19) & 0x1; // bit 19
int pulse_awake = (command >> 20) & 0x1; // bit 20
powermate_pulse_led(pm, static_brightness, pulse_speed, pulse_table, pulse_asleep, pulse_awake);
}
return 0;
}
static int powermate_alloc_buffers(struct usb_device *udev, struct powermate_device *pm)
{
pm->data = usb_alloc_coherent(udev, POWERMATE_PAYLOAD_SIZE_MAX,
GFP_ATOMIC, &pm->data_dma);
if (!pm->data)
return -1;
pm->configcr = kmalloc(sizeof(*(pm->configcr)), GFP_KERNEL);
if (!pm->configcr)
return -ENOMEM;
return 0;
}
static void powermate_free_buffers(struct usb_device *udev, struct powermate_device *pm)
{
usb_free_coherent(udev, POWERMATE_PAYLOAD_SIZE_MAX,
pm->data, pm->data_dma);
kfree(pm->configcr);
}
/* Called whenever a USB device matching one in our supported devices table is connected */
static int powermate_probe(struct usb_interface *intf, const struct usb_device_id *id)
{
struct usb_device *udev = interface_to_usbdev (intf);
struct usb_host_interface *interface;
struct usb_endpoint_descriptor *endpoint;
struct powermate_device *pm;
struct input_dev *input_dev;
int pipe, maxp;
int error = -ENOMEM;
interface = intf->cur_altsetting;
endpoint = &interface->endpoint[0].desc;
if (!usb_endpoint_is_int_in(endpoint))
return -EIO;
usb_control_msg(udev, usb_sndctrlpipe(udev, 0),
0x0a, USB_TYPE_CLASS | USB_RECIP_INTERFACE,
0, interface->desc.bInterfaceNumber, NULL, 0,
USB_CTRL_SET_TIMEOUT);
pm = kzalloc(sizeof(struct powermate_device), GFP_KERNEL);
input_dev = input_allocate_device();
if (!pm || !input_dev)
goto fail1;
if (powermate_alloc_buffers(udev, pm))
goto fail2;
pm->irq = usb_alloc_urb(0, GFP_KERNEL);
if (!pm->irq)
goto fail2;
pm->config = usb_alloc_urb(0, GFP_KERNEL);
if (!pm->config)
goto fail3;
pm->udev = udev;
pm->intf = intf;
pm->input = input_dev;
usb_make_path(udev, pm->phys, sizeof(pm->phys));
strlcat(pm->phys, "/input0", sizeof(pm->phys));
spin_lock_init(&pm->lock);
switch (le16_to_cpu(udev->descriptor.idProduct)) {
case POWERMATE_PRODUCT_NEW:
input_dev->name = pm_name_powermate;
break;
case POWERMATE_PRODUCT_OLD:
input_dev->name = pm_name_soundknob;
break;
default:
input_dev->name = pm_name_soundknob;
printk(KERN_WARNING "powermate: unknown product id %04x\n",
le16_to_cpu(udev->descriptor.idProduct));
}
input_dev->phys = pm->phys;
usb_to_input_id(udev, &input_dev->id);
input_dev->dev.parent = &intf->dev;
input_set_drvdata(input_dev, pm);
input_dev->event = powermate_input_event;
input_dev->evbit[0] = BIT_MASK(EV_KEY) | BIT_MASK(EV_REL) |
BIT_MASK(EV_MSC);
input_dev->keybit[BIT_WORD(BTN_0)] = BIT_MASK(BTN_0);
input_dev->relbit[BIT_WORD(REL_DIAL)] = BIT_MASK(REL_DIAL);
input_dev->mscbit[BIT_WORD(MSC_PULSELED)] = BIT_MASK(MSC_PULSELED);
/* get a handle to the interrupt data pipe */
pipe = usb_rcvintpipe(udev, endpoint->bEndpointAddress);
maxp = usb_maxpacket(udev, pipe, usb_pipeout(pipe));
if (maxp < POWERMATE_PAYLOAD_SIZE_MIN || maxp > POWERMATE_PAYLOAD_SIZE_MAX) {
printk(KERN_WARNING "powermate: Expected payload of %d--%d bytes, found %d bytes!\n",
POWERMATE_PAYLOAD_SIZE_MIN, POWERMATE_PAYLOAD_SIZE_MAX, maxp);
maxp = POWERMATE_PAYLOAD_SIZE_MAX;
}
usb_fill_int_urb(pm->irq, udev, pipe, pm->data,
maxp, powermate_irq,
pm, endpoint->bInterval);
pm->irq->transfer_dma = pm->data_dma;
pm->irq->transfer_flags |= URB_NO_TRANSFER_DMA_MAP;
/* register our interrupt URB with the USB system */
if (usb_submit_urb(pm->irq, GFP_KERNEL)) {
error = -EIO;
goto fail4;
}
error = input_register_device(pm->input);
if (error)
goto fail5;
/* force an update of everything */
pm->requires_update = UPDATE_PULSE_ASLEEP | UPDATE_PULSE_AWAKE | UPDATE_PULSE_MODE | UPDATE_STATIC_BRIGHTNESS;
powermate_pulse_led(pm, 0x80, 255, 0, 1, 0); // set default pulse parameters
usb_set_intfdata(intf, pm);
return 0;
fail5: usb_kill_urb(pm->irq);
fail4: usb_free_urb(pm->config);
fail3: usb_free_urb(pm->irq);
fail2: powermate_free_buffers(udev, pm);
fail1: input_free_device(input_dev);
kfree(pm);
return error;
}
/* Called when a USB device we've accepted ownership of is removed */
static void powermate_disconnect(struct usb_interface *intf)
{
struct powermate_device *pm = usb_get_intfdata (intf);
usb_set_intfdata(intf, NULL);
if (pm) {
pm->requires_update = 0;
usb_kill_urb(pm->irq);
input_unregister_device(pm->input);
usb_free_urb(pm->irq);
usb_free_urb(pm->config);
powermate_free_buffers(interface_to_usbdev(intf), pm);
kfree(pm);
}
}
static struct usb_device_id powermate_devices [] = {
{ USB_DEVICE(POWERMATE_VENDOR, POWERMATE_PRODUCT_NEW) },
{ USB_DEVICE(POWERMATE_VENDOR, POWERMATE_PRODUCT_OLD) },
{ USB_DEVICE(CONTOUR_VENDOR, CONTOUR_JOG) },
{ } /* Terminating entry */
};
MODULE_DEVICE_TABLE (usb, powermate_devices);
static struct usb_driver powermate_driver = {
.name = "powermate",
.probe = powermate_probe,
.disconnect = powermate_disconnect,
.id_table = powermate_devices,
};
module_usb_driver(powermate_driver);
MODULE_AUTHOR( "William R Sowerbutts" );
MODULE_DESCRIPTION( "Griffin Technology, Inc PowerMate driver" );
MODULE_LICENSE("GPL");

200
drivers/input/misc/pwm-beeper.c Normal file
View File

@@ -0,0 +1,200 @@
/*
* Copyright (C) 2010, Lars-Peter Clausen <lars@metafoo.de>
* PWM beeper driver
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by the
* Free Software Foundation; either version 2 of the License, or (at your
* option) any later version.
*
* You should have received a copy of the GNU General Public License along
* with this program; if not, write to the Free Software Foundation, Inc.,
* 675 Mass Ave, Cambridge, MA 02139, USA.
*
*/
#include <linux/input.h>
#include <linux/module.h>
#include <linux/kernel.h>
#include <linux/platform_device.h>
#include <linux/pwm.h>
#include <linux/slab.h>
struct pwm_beeper {
struct input_dev *input;
struct pwm_device *pwm;
unsigned long period;
};
#define HZ_TO_NANOSECONDS(x) (1000000000UL/(x))
static int pwm_beeper_event(struct input_dev *input,
unsigned int type, unsigned int code, int value)
{
int ret = 0;
struct pwm_beeper *beeper = input_get_drvdata(input);
unsigned long period;
if (type != EV_SND || value < 0)
return -EINVAL;
switch (code) {
case SND_BELL:
value = value ? 1000 : 0;
break;
case SND_TONE:
break;
default:
return -EINVAL;
}
if (value == 0) {
pwm_config(beeper->pwm, 0, 0);
pwm_disable(beeper->pwm);
} else {
period = HZ_TO_NANOSECONDS(value);
ret = pwm_config(beeper->pwm, period / 2, period);
if (ret)
return ret;
ret = pwm_enable(beeper->pwm);
if (ret)
return ret;
beeper->period = period;
}
return 0;
}
static int pwm_beeper_probe(struct platform_device *pdev)
{
unsigned long pwm_id = (unsigned long)pdev->dev.platform_data;
struct pwm_beeper *beeper;
int error;
beeper = kzalloc(sizeof(*beeper), GFP_KERNEL);
if (!beeper)
return -ENOMEM;
beeper->pwm = pwm_get(&pdev->dev, NULL);
if (IS_ERR(beeper->pwm)) {
dev_dbg(&pdev->dev, "unable to request PWM, trying legacy API\n");
beeper->pwm = pwm_request(pwm_id, "pwm beeper");
}
if (IS_ERR(beeper->pwm)) {
error = PTR_ERR(beeper->pwm);
dev_err(&pdev->dev, "Failed to request pwm device: %d\n", error);
goto err_free;
}
beeper->input = input_allocate_device();
if (!beeper->input) {
dev_err(&pdev->dev, "Failed to allocate input device\n");
error = -ENOMEM;
goto err_pwm_free;
}
beeper->input->dev.parent = &pdev->dev;
beeper->input->name = "pwm-beeper";
beeper->input->phys = "pwm/input0";
beeper->input->id.bustype = BUS_HOST;
beeper->input->id.vendor = 0x001f;
beeper->input->id.product = 0x0001;
beeper->input->id.version = 0x0100;
beeper->input->evbit[0] = BIT(EV_SND);
beeper->input->sndbit[0] = BIT(SND_TONE) | BIT(SND_BELL);
beeper->input->event = pwm_beeper_event;
input_set_drvdata(beeper->input, beeper);
error = input_register_device(beeper->input);
if (error) {
dev_err(&pdev->dev, "Failed to register input device: %d\n", error);
goto err_input_free;
}
platform_set_drvdata(pdev, beeper);
return 0;
err_input_free:
input_free_device(beeper->input);
err_pwm_free:
pwm_free(beeper->pwm);
err_free:
kfree(beeper);
return error;
}
static int pwm_beeper_remove(struct platform_device *pdev)
{
struct pwm_beeper *beeper = platform_get_drvdata(pdev);
platform_set_drvdata(pdev, NULL);
input_unregister_device(beeper->input);
pwm_disable(beeper->pwm);
pwm_free(beeper->pwm);
kfree(beeper);
return 0;
}
#ifdef CONFIG_PM
static int pwm_beeper_suspend(struct device *dev)
{
struct pwm_beeper *beeper = dev_get_drvdata(dev);
if (beeper->period)
pwm_disable(beeper->pwm);
return 0;
}
static int pwm_beeper_resume(struct device *dev)
{
struct pwm_beeper *beeper = dev_get_drvdata(dev);
if (beeper->period) {
pwm_config(beeper->pwm, beeper->period / 2, beeper->period);
pwm_enable(beeper->pwm);
}
return 0;
}
static SIMPLE_DEV_PM_OPS(pwm_beeper_pm_ops,
pwm_beeper_suspend, pwm_beeper_resume);
#define PWM_BEEPER_PM_OPS (&pwm_beeper_pm_ops)
#else
#define PWM_BEEPER_PM_OPS NULL
#endif
#ifdef CONFIG_OF
static const struct of_device_id pwm_beeper_match[] = {
{ .compatible = "pwm-beeper", },
{ },
};
#endif
static struct platform_driver pwm_beeper_driver = {
.probe = pwm_beeper_probe,
.remove = pwm_beeper_remove,
.driver = {
.name = "pwm-beeper",
.owner = THIS_MODULE,
.pm = PWM_BEEPER_PM_OPS,
.of_match_table = of_match_ptr(pwm_beeper_match),
},
};
module_platform_driver(pwm_beeper_driver);
MODULE_AUTHOR("Lars-Peter Clausen <lars@metafoo.de>");
MODULE_DESCRIPTION("PWM beeper driver");
MODULE_LICENSE("GPL");
MODULE_ALIAS("platform:pwm-beeper");

108
drivers/input/misc/rb532_button.c Normal file
View File

@@ -0,0 +1,108 @@
/*
* Support for the S1 button on Routerboard 532
*
* Copyright (C) 2009 Phil Sutter <n0-1@freewrt.org>
*/
#include <linux/input-polldev.h>
#include <linux/module.h>
#include <linux/platform_device.h>
#include <asm/mach-rc32434/gpio.h>
#include <asm/mach-rc32434/rb.h>
#define DRV_NAME "rb532-button"
#define RB532_BTN_RATE 100 /* msec */
#define RB532_BTN_KSYM BTN_0
/* The S1 button state is provided by GPIO pin 1. But as this
* pin is also used for uart input as alternate function, the
* operational modes must be switched first:
* 1) disable uart using set_latch_u5()
* 2) turn off alternate function implicitly through
* gpio_direction_input()
* 3) read the GPIO's current value
* 4) undo step 2 by enabling alternate function (in this
* mode the GPIO direction is fixed, so no change needed)
* 5) turn on uart again
* The GPIO value occurs to be inverted, so pin high means
* button is not pressed.
*/
static bool rb532_button_pressed(void)
{
int val;
set_latch_u5(0, LO_FOFF);
gpio_direction_input(GPIO_BTN_S1);
val = gpio_get_value(GPIO_BTN_S1);
rb532_gpio_set_func(GPIO_BTN_S1);
set_latch_u5(LO_FOFF, 0);
return !val;
}
static void rb532_button_poll(struct input_polled_dev *poll_dev)
{
input_report_key(poll_dev->input, RB532_BTN_KSYM,
rb532_button_pressed());
input_sync(poll_dev->input);
}
static int rb532_button_probe(struct platform_device *pdev)
{
struct input_polled_dev *poll_dev;
int error;
poll_dev = input_allocate_polled_device();
if (!poll_dev)
return -ENOMEM;
poll_dev->poll = rb532_button_poll;
poll_dev->poll_interval = RB532_BTN_RATE;
poll_dev->input->name = "rb532 button";
poll_dev->input->phys = "rb532/button0";
poll_dev->input->id.bustype = BUS_HOST;
poll_dev->input->dev.parent = &pdev->dev;
dev_set_drvdata(&pdev->dev, poll_dev);
input_set_capability(poll_dev->input, EV_KEY, RB532_BTN_KSYM);
error = input_register_polled_device(poll_dev);
if (error) {
input_free_polled_device(poll_dev);
return error;
}
return 0;
}
static int rb532_button_remove(struct platform_device *pdev)
{
struct input_polled_dev *poll_dev = dev_get_drvdata(&pdev->dev);
input_unregister_polled_device(poll_dev);
input_free_polled_device(poll_dev);
dev_set_drvdata(&pdev->dev, NULL);
return 0;
}
static struct platform_driver rb532_button_driver = {
.probe = rb532_button_probe,
.remove = rb532_button_remove,
.driver = {
.name = DRV_NAME,
.owner = THIS_MODULE,
},
};
module_platform_driver(rb532_button_driver);
MODULE_AUTHOR("Phil Sutter <n0-1@freewrt.org>");
MODULE_LICENSE("GPL");
MODULE_DESCRIPTION("Support for S1 button on Routerboard 532");
MODULE_ALIAS("platform:" DRV_NAME);

99
drivers/input/misc/retu-pwrbutton.c Normal file
View File

@@ -0,0 +1,99 @@
/*
* Retu power button driver.
*
* Copyright (C) 2004-2010 Nokia Corporation
*
* Original code written by Ari Saastamoinen, Juha Yrjölä and Felipe Balbi.
* Rewritten by Aaro Koskinen.
*
* This file is subject to the terms and conditions of the GNU General
* Public License. See the file "COPYING" in the main directory of this
* archive for more details.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*/
#include <linux/irq.h>
#include <linux/init.h>
#include <linux/slab.h>
#include <linux/errno.h>
#include <linux/input.h>
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/mfd/retu.h>
#include <linux/interrupt.h>
#include <linux/platform_device.h>
#define RETU_STATUS_PWRONX (1 << 5)
static irqreturn_t retu_pwrbutton_irq(int irq, void *_pwr)
{
struct input_dev *idev = _pwr;
struct retu_dev *rdev = input_get_drvdata(idev);
bool state;
state = !(retu_read(rdev, RETU_REG_STATUS) & RETU_STATUS_PWRONX);
input_report_key(idev, KEY_POWER, state);
input_sync(idev);
return IRQ_HANDLED;
}
static int retu_pwrbutton_probe(struct platform_device *pdev)
{
struct retu_dev *rdev = dev_get_drvdata(pdev->dev.parent);
struct input_dev *idev;
int irq;
int error;
irq = platform_get_irq(pdev, 0);
if (irq < 0)
return irq;
idev = devm_input_allocate_device(&pdev->dev);
if (!idev)
return -ENOMEM;
idev->name = "retu-pwrbutton";
idev->dev.parent = &pdev->dev;
input_set_capability(idev, EV_KEY, KEY_POWER);
input_set_drvdata(idev, rdev);
error = devm_request_threaded_irq(&pdev->dev, irq,
NULL, retu_pwrbutton_irq, 0,
"retu-pwrbutton", idev);
if (error)
return error;
error = input_register_device(idev);
if (error)
return error;
return 0;
}
static int retu_pwrbutton_remove(struct platform_device *pdev)
{
return 0;
}
static struct platform_driver retu_pwrbutton_driver = {
.probe = retu_pwrbutton_probe,
.remove = retu_pwrbutton_remove,
.driver = {
.name = "retu-pwrbutton",
.owner = THIS_MODULE,
},
};
module_platform_driver(retu_pwrbutton_driver);
MODULE_ALIAS("platform:retu-pwrbutton");
MODULE_DESCRIPTION("Retu Power Button");
MODULE_AUTHOR("Ari Saastamoinen");
MODULE_AUTHOR("Felipe Balbi");
MODULE_AUTHOR("Aaro Koskinen <aaro.koskinen@iki.fi>");
MODULE_LICENSE("GPL");

339
drivers/input/misc/rotary_encoder.c Normal file
View File

@@ -0,0 +1,339 @@
/*
* rotary_encoder.c
*
* (c) 2009 Daniel Mack <daniel@caiaq.de>
* Copyright (C) 2011 Johan Hovold <jhovold@gmail.com>
*
* state machine code inspired by code from Tim Ruetz
*
* A generic driver for rotary encoders connected to GPIO lines.
* See file:Documentation/input/rotary-encoder.txt for more information
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*/
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/init.h>
#include <linux/interrupt.h>
#include <linux/input.h>
#include <linux/device.h>
#include <linux/platform_device.h>
#include <linux/gpio.h>
#include <linux/rotary_encoder.h>
#include <linux/slab.h>
#include <linux/of_platform.h>
#include <linux/of_gpio.h>
#define DRV_NAME "rotary-encoder"
struct rotary_encoder {
struct input_dev *input;
const struct rotary_encoder_platform_data *pdata;
unsigned int axis;
unsigned int pos;
unsigned int irq_a;
unsigned int irq_b;
bool armed;
unsigned char dir; /* 0 - clockwise, 1 - CCW */
char last_stable;
};
static int rotary_encoder_get_state(const struct rotary_encoder_platform_data *pdata)
{
int a = !!gpio_get_value(pdata->gpio_a);
int b = !!gpio_get_value(pdata->gpio_b);
a ^= pdata->inverted_a;
b ^= pdata->inverted_b;
return ((a << 1) | b);
}
static void rotary_encoder_report_event(struct rotary_encoder *encoder)
{
const struct rotary_encoder_platform_data *pdata = encoder->pdata;
if (pdata->relative_axis) {
input_report_rel(encoder->input,
pdata->axis, encoder->dir ? -1 : 1);
} else {
unsigned int pos = encoder->pos;
if (encoder->dir) {
/* turning counter-clockwise */
if (pdata->rollover)
pos += pdata->steps;
if (pos)
pos--;
} else {
/* turning clockwise */
if (pdata->rollover || pos < pdata->steps)
pos++;
}
if (pdata->rollover)
pos %= pdata->steps;
encoder->pos = pos;
input_report_abs(encoder->input, pdata->axis, encoder->pos);
}
input_sync(encoder->input);
}
static irqreturn_t rotary_encoder_irq(int irq, void *dev_id)
{
struct rotary_encoder *encoder = dev_id;
int state;
state = rotary_encoder_get_state(encoder->pdata);
switch (state) {
case 0x0:
if (encoder->armed) {
rotary_encoder_report_event(encoder);
encoder->armed = false;
}
break;
case 0x1:
case 0x2:
if (encoder->armed)
encoder->dir = state - 1;
break;
case 0x3:
encoder->armed = true;
break;
}
return IRQ_HANDLED;
}
static irqreturn_t rotary_encoder_half_period_irq(int irq, void *dev_id)
{
struct rotary_encoder *encoder = dev_id;
int state;
state = rotary_encoder_get_state(encoder->pdata);
switch (state) {
case 0x00:
case 0x03:
if (state != encoder->last_stable) {
rotary_encoder_report_event(encoder);
encoder->last_stable = state;
}
break;
case 0x01:
case 0x02:
encoder->dir = (encoder->last_stable + state) & 0x01;
break;
}
return IRQ_HANDLED;
}
#ifdef CONFIG_OF
static struct of_device_id rotary_encoder_of_match[] = {
{ .compatible = "rotary-encoder", },
{ },
};
MODULE_DEVICE_TABLE(of, rotary_encoder_of_match);
static struct rotary_encoder_platform_data *rotary_encoder_parse_dt(struct device *dev)
{
const struct of_device_id *of_id =
of_match_device(rotary_encoder_of_match, dev);
struct device_node *np = dev->of_node;
struct rotary_encoder_platform_data *pdata;
enum of_gpio_flags flags;
if (!of_id || !np)
return NULL;
pdata = kzalloc(sizeof(struct rotary_encoder_platform_data),
GFP_KERNEL);
if (!pdata)
return ERR_PTR(-ENOMEM);
of_property_read_u32(np, "rotary-encoder,steps", &pdata->steps);
of_property_read_u32(np, "linux,axis", &pdata->axis);
pdata->gpio_a = of_get_gpio_flags(np, 0, &flags);
pdata->inverted_a = flags & OF_GPIO_ACTIVE_LOW;
pdata->gpio_b = of_get_gpio_flags(np, 1, &flags);
pdata->inverted_b = flags & OF_GPIO_ACTIVE_LOW;
pdata->relative_axis = !!of_get_property(np,
"rotary-encoder,relative-axis", NULL);
pdata->rollover = !!of_get_property(np,
"rotary-encoder,rollover", NULL);
pdata->half_period = !!of_get_property(np,
"rotary-encoder,half-period", NULL);
return pdata;
}
#else
static inline struct rotary_encoder_platform_data *
rotary_encoder_parse_dt(struct device *dev)
{
return NULL;
}
#endif
static int rotary_encoder_probe(struct platform_device *pdev)
{
struct device *dev = &pdev->dev;
const struct rotary_encoder_platform_data *pdata = dev_get_platdata(dev);
struct rotary_encoder *encoder;
struct input_dev *input;
irq_handler_t handler;
int err;
if (!pdata) {
pdata = rotary_encoder_parse_dt(dev);
if (IS_ERR(pdata))
return PTR_ERR(pdata);
if (!pdata) {
dev_err(dev, "missing platform data\n");
return -EINVAL;
}
}
encoder = kzalloc(sizeof(struct rotary_encoder), GFP_KERNEL);
input = input_allocate_device();
if (!encoder || !input) {
err = -ENOMEM;
goto exit_free_mem;
}
encoder->input = input;
encoder->pdata = pdata;
input->name = pdev->name;
input->id.bustype = BUS_HOST;
input->dev.parent = dev;
if (pdata->relative_axis) {
input->evbit[0] = BIT_MASK(EV_REL);
input->relbit[0] = BIT_MASK(pdata->axis);
} else {
input->evbit[0] = BIT_MASK(EV_ABS);
input_set_abs_params(encoder->input,
pdata->axis, 0, pdata->steps, 0, 1);
}
/* request the GPIOs */
err = gpio_request_one(pdata->gpio_a, GPIOF_IN, dev_name(dev));
if (err) {
dev_err(dev, "unable to request GPIO %d\n", pdata->gpio_a);
goto exit_free_mem;
}
err = gpio_request_one(pdata->gpio_b, GPIOF_IN, dev_name(dev));
if (err) {
dev_err(dev, "unable to request GPIO %d\n", pdata->gpio_b);
goto exit_free_gpio_a;
}
encoder->irq_a = gpio_to_irq(pdata->gpio_a);
encoder->irq_b = gpio_to_irq(pdata->gpio_b);
/* request the IRQs */
if (pdata->half_period) {
handler = &rotary_encoder_half_period_irq;
encoder->last_stable = rotary_encoder_get_state(pdata);
} else {
handler = &rotary_encoder_irq;
}
err = request_irq(encoder->irq_a, handler,
IRQF_TRIGGER_RISING | IRQF_TRIGGER_FALLING,
DRV_NAME, encoder);
if (err) {
dev_err(dev, "unable to request IRQ %d\n", encoder->irq_a);
goto exit_free_gpio_b;
}
err = request_irq(encoder->irq_b, handler,
IRQF_TRIGGER_RISING | IRQF_TRIGGER_FALLING,
DRV_NAME, encoder);
if (err) {
dev_err(dev, "unable to request IRQ %d\n", encoder->irq_b);
goto exit_free_irq_a;
}
err = input_register_device(input);
if (err) {
dev_err(dev, "failed to register input device\n");
goto exit_free_irq_b;
}
platform_set_drvdata(pdev, encoder);
return 0;
exit_free_irq_b:
free_irq(encoder->irq_b, encoder);
exit_free_irq_a:
free_irq(encoder->irq_a, encoder);
exit_free_gpio_b:
gpio_free(pdata->gpio_b);
exit_free_gpio_a:
gpio_free(pdata->gpio_a);
exit_free_mem:
input_free_device(input);
kfree(encoder);
if (!dev_get_platdata(&pdev->dev))
kfree(pdata);
return err;
}
static int rotary_encoder_remove(struct platform_device *pdev)
{
struct rotary_encoder *encoder = platform_get_drvdata(pdev);
const struct rotary_encoder_platform_data *pdata = encoder->pdata;
free_irq(encoder->irq_a, encoder);
free_irq(encoder->irq_b, encoder);
gpio_free(pdata->gpio_a);
gpio_free(pdata->gpio_b);
input_unregister_device(encoder->input);
kfree(encoder);
if (!dev_get_platdata(&pdev->dev))
kfree(pdata);
platform_set_drvdata(pdev, NULL);
return 0;
}
static struct platform_driver rotary_encoder_driver = {
.probe = rotary_encoder_probe,
.remove = rotary_encoder_remove,
.driver = {
.name = DRV_NAME,
.owner = THIS_MODULE,
.of_match_table = of_match_ptr(rotary_encoder_of_match),
}
};
module_platform_driver(rotary_encoder_driver);
MODULE_ALIAS("platform:" DRV_NAME);
MODULE_DESCRIPTION("GPIO rotary encoder driver");
MODULE_AUTHOR("Daniel Mack <daniel@caiaq.de>, Johan Hovold");
MODULE_LICENSE("GPL v2");

169
drivers/input/misc/sgi_btns.c Normal file
View File

@@ -0,0 +1,169 @@
/*
* SGI Volume Button interface driver
*
* Copyright (C) 2008 Thomas Bogendoerfer <tsbogend@alpha.franken.de>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#include <linux/init.h>
#include <linux/input-polldev.h>
#include <linux/ioport.h>
#include <linux/module.h>
#include <linux/platform_device.h>
#include <linux/slab.h>
#ifdef CONFIG_SGI_IP22
#include <asm/sgi/ioc.h>
static inline u8 button_status(void)
{
u8 status;
status = readb(&sgioc->panel) ^ 0xa0;
return ((status & 0x80) >> 6) | ((status & 0x20) >> 5);
}
#endif
#ifdef CONFIG_SGI_IP32
#include <asm/ip32/mace.h>
static inline u8 button_status(void)
{
u64 status;
status = readq(&mace->perif.audio.control);
writeq(status & ~(3U << 23), &mace->perif.audio.control);
return (status >> 23) & 3;
}
#endif
#define BUTTONS_POLL_INTERVAL 30 /* msec */
#define BUTTONS_COUNT_THRESHOLD 3
static const unsigned short sgi_map[] = {
KEY_VOLUMEDOWN,
KEY_VOLUMEUP
};
struct buttons_dev {
struct input_polled_dev *poll_dev;
unsigned short keymap[ARRAY_SIZE(sgi_map)];
int count[ARRAY_SIZE(sgi_map)];
};
static void handle_buttons(struct input_polled_dev *dev)
{
struct buttons_dev *bdev = dev->private;
struct input_dev *input = dev->input;
u8 status;
int i;
status = button_status();
for (i = 0; i < ARRAY_SIZE(bdev->keymap); i++) {
if (status & (1U << i)) {
if (++bdev->count[i] == BUTTONS_COUNT_THRESHOLD) {
input_event(input, EV_MSC, MSC_SCAN, i);
input_report_key(input, bdev->keymap[i], 1);
input_sync(input);
}
} else {
if (bdev->count[i] >= BUTTONS_COUNT_THRESHOLD) {
input_event(input, EV_MSC, MSC_SCAN, i);
input_report_key(input, bdev->keymap[i], 0);
input_sync(input);
}
bdev->count[i] = 0;
}
}
}
static int sgi_buttons_probe(struct platform_device *pdev)
{
struct buttons_dev *bdev;
struct input_polled_dev *poll_dev;
struct input_dev *input;
int error, i;
bdev = kzalloc(sizeof(struct buttons_dev), GFP_KERNEL);
poll_dev = input_allocate_polled_device();
if (!bdev || !poll_dev) {
error = -ENOMEM;
goto err_free_mem;
}
memcpy(bdev->keymap, sgi_map, sizeof(bdev->keymap));
poll_dev->private = bdev;
poll_dev->poll = handle_buttons;
poll_dev->poll_interval = BUTTONS_POLL_INTERVAL;
input = poll_dev->input;
input->name = "SGI buttons";
input->phys = "sgi/input0";
input->id.bustype = BUS_HOST;
input->dev.parent = &pdev->dev;
input->keycode = bdev->keymap;
input->keycodemax = ARRAY_SIZE(bdev->keymap);
input->keycodesize = sizeof(unsigned short);
input_set_capability(input, EV_MSC, MSC_SCAN);
__set_bit(EV_KEY, input->evbit);
for (i = 0; i < ARRAY_SIZE(sgi_map); i++)
__set_bit(bdev->keymap[i], input->keybit);
__clear_bit(KEY_RESERVED, input->keybit);
bdev->poll_dev = poll_dev;
dev_set_drvdata(&pdev->dev, bdev);
error = input_register_polled_device(poll_dev);
if (error)
goto err_free_mem;
return 0;
err_free_mem:
input_free_polled_device(poll_dev);
kfree(bdev);
dev_set_drvdata(&pdev->dev, NULL);
return error;
}
static int sgi_buttons_remove(struct platform_device *pdev)
{
struct device *dev = &pdev->dev;
struct buttons_dev *bdev = dev_get_drvdata(dev);
input_unregister_polled_device(bdev->poll_dev);
input_free_polled_device(bdev->poll_dev);
kfree(bdev);
dev_set_drvdata(dev, NULL);
return 0;
}
static struct platform_driver sgi_buttons_driver = {
.probe = sgi_buttons_probe,
.remove = sgi_buttons_remove,
.driver = {
.name = "sgibtns",
.owner = THIS_MODULE,
},
};
module_platform_driver(sgi_buttons_driver);
MODULE_LICENSE("GPL");

372
drivers/input/misc/sparcspkr.c Normal file
View File

@@ -0,0 +1,372 @@
/*
* Driver for PC-speaker like devices found on various Sparc systems.
*
* Copyright (c) 2002 Vojtech Pavlik
* Copyright (c) 2002, 2006, 2008 David S. Miller (davem@davemloft.net)
*/
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/init.h>
#include <linux/input.h>
#include <linux/of_device.h>
#include <linux/slab.h>
#include <asm/io.h>
MODULE_AUTHOR("David S. Miller <davem@davemloft.net>");
MODULE_DESCRIPTION("Sparc Speaker beeper driver");
MODULE_LICENSE("GPL");
struct grover_beep_info {
void __iomem *freq_regs;
void __iomem *enable_reg;
};
struct bbc_beep_info {
u32 clock_freq;
void __iomem *regs;
};
struct sparcspkr_state {
const char *name;
int (*event)(struct input_dev *dev, unsigned int type, unsigned int code, int value);
spinlock_t lock;
struct input_dev *input_dev;
union {
struct grover_beep_info grover;
struct bbc_beep_info bbc;
} u;
};
static u32 bbc_count_to_reg(struct bbc_beep_info *info, unsigned int count)
{
u32 val, clock_freq = info->clock_freq;
int i;
if (!count)
return 0;
if (count <= clock_freq >> 20)
return 1 << 18;
if (count >= clock_freq >> 12)
return 1 << 10;
val = 1 << 18;
for (i = 19; i >= 11; i--) {
val >>= 1;
if (count <= clock_freq >> i)
break;
}
return val;
}
static int bbc_spkr_event(struct input_dev *dev, unsigned int type, unsigned int code, int value)
{
struct sparcspkr_state *state = dev_get_drvdata(dev->dev.parent);
struct bbc_beep_info *info = &state->u.bbc;
unsigned int count = 0;
unsigned long flags;
if (type != EV_SND)
return -1;
switch (code) {
case SND_BELL: if (value) value = 1000;
case SND_TONE: break;
default: return -1;
}
if (value > 20 && value < 32767)
count = 1193182 / value;
count = bbc_count_to_reg(info, count);
spin_lock_irqsave(&state->lock, flags);
if (count) {
outb(0x01, info->regs + 0);
outb(0x00, info->regs + 2);
outb((count >> 16) & 0xff, info->regs + 3);
outb((count >> 8) & 0xff, info->regs + 4);
outb(0x00, info->regs + 5);
} else {
outb(0x00, info->regs + 0);
}
spin_unlock_irqrestore(&state->lock, flags);
return 0;
}
static int grover_spkr_event(struct input_dev *dev, unsigned int type, unsigned int code, int value)
{
struct sparcspkr_state *state = dev_get_drvdata(dev->dev.parent);
struct grover_beep_info *info = &state->u.grover;
unsigned int count = 0;
unsigned long flags;
if (type != EV_SND)
return -1;
switch (code) {
case SND_BELL: if (value) value = 1000;
case SND_TONE: break;
default: return -1;
}
if (value > 20 && value < 32767)
count = 1193182 / value;
spin_lock_irqsave(&state->lock, flags);
if (count) {
/* enable counter 2 */
outb(inb(info->enable_reg) | 3, info->enable_reg);
/* set command for counter 2, 2 byte write */
outb(0xB6, info->freq_regs + 1);
/* select desired HZ */
outb(count & 0xff, info->freq_regs + 0);
outb((count >> 8) & 0xff, info->freq_regs + 0);
} else {
/* disable counter 2 */
outb(inb_p(info->enable_reg) & 0xFC, info->enable_reg);
}
spin_unlock_irqrestore(&state->lock, flags);
return 0;
}
static int sparcspkr_probe(struct device *dev)
{
struct sparcspkr_state *state = dev_get_drvdata(dev);
struct input_dev *input_dev;
int error;
input_dev = input_allocate_device();
if (!input_dev)
return -ENOMEM;
input_dev->name = state->name;
input_dev->phys = "sparc/input0";
input_dev->id.bustype = BUS_ISA;
input_dev->id.vendor = 0x001f;
input_dev->id.product = 0x0001;
input_dev->id.version = 0x0100;
input_dev->dev.parent = dev;
input_dev->evbit[0] = BIT_MASK(EV_SND);
input_dev->sndbit[0] = BIT_MASK(SND_BELL) | BIT_MASK(SND_TONE);
input_dev->event = state->event;
error = input_register_device(input_dev);
if (error) {
input_free_device(input_dev);
return error;
}
state->input_dev = input_dev;
return 0;
}
static void sparcspkr_shutdown(struct platform_device *dev)
{
struct sparcspkr_state *state = dev_get_drvdata(&dev->dev);
struct input_dev *input_dev = state->input_dev;
/* turn off the speaker */
state->event(input_dev, EV_SND, SND_BELL, 0);
}
static int bbc_beep_probe(struct platform_device *op)
{
struct sparcspkr_state *state;
struct bbc_beep_info *info;
struct device_node *dp;
int err = -ENOMEM;
state = kzalloc(sizeof(*state), GFP_KERNEL);
if (!state)
goto out_err;
state->name = "Sparc BBC Speaker";
state->event = bbc_spkr_event;
spin_lock_init(&state->lock);
dp = of_find_node_by_path("/");
err = -ENODEV;
if (!dp)
goto out_free;
info = &state->u.bbc;
info->clock_freq = of_getintprop_default(dp, "clock-frequency", 0);
if (!info->clock_freq)
goto out_free;
info->regs = of_ioremap(&op->resource[0], 0, 6, "bbc beep");
if (!info->regs)
goto out_free;
dev_set_drvdata(&op->dev, state);
err = sparcspkr_probe(&op->dev);
if (err)
goto out_clear_drvdata;
return 0;
out_clear_drvdata:
dev_set_drvdata(&op->dev, NULL);
of_iounmap(&op->resource[0], info->regs, 6);
out_free:
kfree(state);
out_err:
return err;
}
static int bbc_remove(struct platform_device *op)
{
struct sparcspkr_state *state = dev_get_drvdata(&op->dev);
struct input_dev *input_dev = state->input_dev;
struct bbc_beep_info *info = &state->u.bbc;
/* turn off the speaker */
state->event(input_dev, EV_SND, SND_BELL, 0);
input_unregister_device(input_dev);
of_iounmap(&op->resource[0], info->regs, 6);
dev_set_drvdata(&op->dev, NULL);
kfree(state);
return 0;
}
static const struct of_device_id bbc_beep_match[] = {
{
.name = "beep",
.compatible = "SUNW,bbc-beep",
},
{},
};
static struct platform_driver bbc_beep_driver = {
.driver = {
.name = "bbcbeep",
.owner = THIS_MODULE,
.of_match_table = bbc_beep_match,
},
.probe = bbc_beep_probe,
.remove = bbc_remove,
.shutdown = sparcspkr_shutdown,
};
static int grover_beep_probe(struct platform_device *op)
{
struct sparcspkr_state *state;
struct grover_beep_info *info;
int err = -ENOMEM;
state = kzalloc(sizeof(*state), GFP_KERNEL);
if (!state)
goto out_err;
state->name = "Sparc Grover Speaker";
state->event = grover_spkr_event;
spin_lock_init(&state->lock);
info = &state->u.grover;
info->freq_regs = of_ioremap(&op->resource[2], 0, 2, "grover beep freq");
if (!info->freq_regs)
goto out_free;
info->enable_reg = of_ioremap(&op->resource[3], 0, 1, "grover beep enable");
if (!info->enable_reg)
goto out_unmap_freq_regs;
dev_set_drvdata(&op->dev, state);
err = sparcspkr_probe(&op->dev);
if (err)
goto out_clear_drvdata;
return 0;
out_clear_drvdata:
dev_set_drvdata(&op->dev, NULL);
of_iounmap(&op->resource[3], info->enable_reg, 1);
out_unmap_freq_regs:
of_iounmap(&op->resource[2], info->freq_regs, 2);
out_free:
kfree(state);
out_err:
return err;
}
static int grover_remove(struct platform_device *op)
{
struct sparcspkr_state *state = dev_get_drvdata(&op->dev);
struct grover_beep_info *info = &state->u.grover;
struct input_dev *input_dev = state->input_dev;
/* turn off the speaker */
state->event(input_dev, EV_SND, SND_BELL, 0);
input_unregister_device(input_dev);
of_iounmap(&op->resource[3], info->enable_reg, 1);
of_iounmap(&op->resource[2], info->freq_regs, 2);
dev_set_drvdata(&op->dev, NULL);
kfree(state);
return 0;
}
static const struct of_device_id grover_beep_match[] = {
{
.name = "beep",
.compatible = "SUNW,smbus-beep",
},
{},
};
static struct platform_driver grover_beep_driver = {
.driver = {
.name = "groverbeep",
.owner = THIS_MODULE,
.of_match_table = grover_beep_match,
},
.probe = grover_beep_probe,
.remove = grover_remove,
.shutdown = sparcspkr_shutdown,
};
static int __init sparcspkr_init(void)
{
int err = platform_driver_register(&bbc_beep_driver);
if (!err) {
err = platform_driver_register(&grover_beep_driver);
if (err)
platform_driver_unregister(&bbc_beep_driver);
}
return err;
}
static void __exit sparcspkr_exit(void)
{
platform_driver_unregister(&bbc_beep_driver);
platform_driver_unregister(&grover_beep_driver);
}
module_init(sparcspkr_init);
module_exit(sparcspkr_exit);

125
drivers/input/misc/twl4030-pwrbutton.c Normal file
View File

@@ -0,0 +1,125 @@
/**
* twl4030-pwrbutton.c - TWL4030 Power Button Input Driver
*
* Copyright (C) 2008-2009 Nokia Corporation
*
* Written by Peter De Schrijver <peter.de-schrijver@nokia.com>
* Several fixes by Felipe Balbi <felipe.balbi@nokia.com>
*
* This file is subject to the terms and conditions of the GNU General
* Public License. See the file "COPYING" in the main directory of this
* archive for more details.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#include <linux/module.h>
#include <linux/init.h>
#include <linux/kernel.h>
#include <linux/errno.h>
#include <linux/input.h>
#include <linux/interrupt.h>
#include <linux/platform_device.h>
#include <linux/i2c/twl.h>
#define PWR_PWRON_IRQ (1 << 0)
#define STS_HW_CONDITIONS 0xf
static irqreturn_t powerbutton_irq(int irq, void *_pwr)
{
struct input_dev *pwr = _pwr;
int err;
u8 value;
err = twl_i2c_read_u8(TWL_MODULE_PM_MASTER, &value, STS_HW_CONDITIONS);
if (!err) {
pm_wakeup_event(pwr->dev.parent, 0);
input_report_key(pwr, KEY_POWER, value & PWR_PWRON_IRQ);
input_sync(pwr);
} else {
dev_err(pwr->dev.parent, "twl4030: i2c error %d while reading"
" TWL4030 PM_MASTER STS_HW_CONDITIONS register\n", err);
}
return IRQ_HANDLED;
}
static int __init twl4030_pwrbutton_probe(struct platform_device *pdev)
{
struct input_dev *pwr;
int irq = platform_get_irq(pdev, 0);
int err;
pwr = input_allocate_device();
if (!pwr) {
dev_dbg(&pdev->dev, "Can't allocate power button\n");
return -ENOMEM;
}
pwr->evbit[0] = BIT_MASK(EV_KEY);
pwr->keybit[BIT_WORD(KEY_POWER)] = BIT_MASK(KEY_POWER);
pwr->name = "twl4030_pwrbutton";
pwr->phys = "twl4030_pwrbutton/input0";
pwr->dev.parent = &pdev->dev;
err = request_threaded_irq(irq, NULL, powerbutton_irq,
IRQF_TRIGGER_FALLING | IRQF_TRIGGER_RISING,
"twl4030_pwrbutton", pwr);
if (err < 0) {
dev_dbg(&pdev->dev, "Can't get IRQ for pwrbutton: %d\n", err);
goto free_input_dev;
}
err = input_register_device(pwr);
if (err) {
dev_dbg(&pdev->dev, "Can't register power button: %d\n", err);
goto free_irq;
}
platform_set_drvdata(pdev, pwr);
return 0;
free_irq:
free_irq(irq, pwr);
free_input_dev:
input_free_device(pwr);
return err;
}
static int __exit twl4030_pwrbutton_remove(struct platform_device *pdev)
{
struct input_dev *pwr = platform_get_drvdata(pdev);
int irq = platform_get_irq(pdev, 0);
free_irq(irq, pwr);
input_unregister_device(pwr);
return 0;
}
static struct platform_driver twl4030_pwrbutton_driver = {
.remove = __exit_p(twl4030_pwrbutton_remove),
.driver = {
.name = "twl4030_pwrbutton",
.owner = THIS_MODULE,
},
};
module_platform_driver_probe(twl4030_pwrbutton_driver,
twl4030_pwrbutton_probe);
MODULE_ALIAS("platform:twl4030_pwrbutton");
MODULE_DESCRIPTION("Triton2 Power Button");
MODULE_LICENSE("GPL");
MODULE_AUTHOR("Peter De Schrijver <peter.de-schrijver@nokia.com>");
MODULE_AUTHOR("Felipe Balbi <felipe.balbi@nokia.com>");

263
drivers/input/misc/twl4030-vibra.c Normal file
View File

@@ -0,0 +1,263 @@
/*
* twl4030-vibra.c - TWL4030 Vibrator driver
*
* Copyright (C) 2008-2010 Nokia Corporation
*
* Written by Henrik Saari <henrik.saari@nokia.com>
* Updates by Felipe Balbi <felipe.balbi@nokia.com>
* Input by Jari Vanhala <ext-jari.vanhala@nokia.com>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
* 02110-1301 USA
*
*/
#include <linux/module.h>
#include <linux/jiffies.h>
#include <linux/platform_device.h>
#include <linux/of.h>
#include <linux/workqueue.h>
#include <linux/i2c/twl.h>
#include <linux/mfd/twl4030-audio.h>
#include <linux/input.h>
#include <linux/slab.h>
/* MODULE ID2 */
#define LEDEN 0x00
/* ForceFeedback */
#define EFFECT_DIR_180_DEG 0x8000 /* range is 0 - 0xFFFF */
struct vibra_info {
struct device *dev;
struct input_dev *input_dev;
struct work_struct play_work;
bool enabled;
int speed;
int direction;
bool coexist;
};
static void vibra_disable_leds(void)
{
u8 reg;
/* Disable LEDA & LEDB, cannot be used with vibra (PWM) */
twl_i2c_read_u8(TWL4030_MODULE_LED, &reg, LEDEN);
reg &= ~0x03;
twl_i2c_write_u8(TWL4030_MODULE_LED, LEDEN, reg);
}
/* Powers H-Bridge and enables audio clk */
static void vibra_enable(struct vibra_info *info)
{
u8 reg;
twl4030_audio_enable_resource(TWL4030_AUDIO_RES_POWER);
/* turn H-Bridge on */
twl_i2c_read_u8(TWL4030_MODULE_AUDIO_VOICE,
&reg, TWL4030_REG_VIBRA_CTL);
twl_i2c_write_u8(TWL4030_MODULE_AUDIO_VOICE,
(reg | TWL4030_VIBRA_EN), TWL4030_REG_VIBRA_CTL);
twl4030_audio_enable_resource(TWL4030_AUDIO_RES_APLL);
info->enabled = true;
}
static void vibra_disable(struct vibra_info *info)
{
u8 reg;
/* Power down H-Bridge */
twl_i2c_read_u8(TWL4030_MODULE_AUDIO_VOICE,
&reg, TWL4030_REG_VIBRA_CTL);
twl_i2c_write_u8(TWL4030_MODULE_AUDIO_VOICE,
(reg & ~TWL4030_VIBRA_EN), TWL4030_REG_VIBRA_CTL);
twl4030_audio_disable_resource(TWL4030_AUDIO_RES_APLL);
twl4030_audio_disable_resource(TWL4030_AUDIO_RES_POWER);
info->enabled = false;
}
static void vibra_play_work(struct work_struct *work)
{
struct vibra_info *info = container_of(work,
struct vibra_info, play_work);
int dir;
int pwm;
u8 reg;
dir = info->direction;
pwm = info->speed;
twl_i2c_read_u8(TWL4030_MODULE_AUDIO_VOICE,
&reg, TWL4030_REG_VIBRA_CTL);
if (pwm && (!info->coexist || !(reg & TWL4030_VIBRA_SEL))) {
if (!info->enabled)
vibra_enable(info);
/* set vibra rotation direction */
twl_i2c_read_u8(TWL4030_MODULE_AUDIO_VOICE,
&reg, TWL4030_REG_VIBRA_CTL);
reg = (dir) ? (reg | TWL4030_VIBRA_DIR) :
(reg & ~TWL4030_VIBRA_DIR);
twl_i2c_write_u8(TWL4030_MODULE_AUDIO_VOICE,
reg, TWL4030_REG_VIBRA_CTL);
/* set PWM, 1 = max, 255 = min */
twl_i2c_write_u8(TWL4030_MODULE_AUDIO_VOICE,
256 - pwm, TWL4030_REG_VIBRA_SET);
} else {
if (info->enabled)
vibra_disable(info);
}
}
/*** Input/ForceFeedback ***/
static int vibra_play(struct input_dev *input, void *data,
struct ff_effect *effect)
{
struct vibra_info *info = input_get_drvdata(input);
info->speed = effect->u.rumble.strong_magnitude >> 8;
if (!info->speed)
info->speed = effect->u.rumble.weak_magnitude >> 9;
info->direction = effect->direction < EFFECT_DIR_180_DEG ? 0 : 1;
schedule_work(&info->play_work);
return 0;
}
static void twl4030_vibra_close(struct input_dev *input)
{
struct vibra_info *info = input_get_drvdata(input);
cancel_work_sync(&info->play_work);
if (info->enabled)
vibra_disable(info);
}
/*** Module ***/
#ifdef CONFIG_PM_SLEEP
static int twl4030_vibra_suspend(struct device *dev)
{
struct platform_device *pdev = to_platform_device(dev);
struct vibra_info *info = platform_get_drvdata(pdev);
if (info->enabled)
vibra_disable(info);
return 0;
}
static int twl4030_vibra_resume(struct device *dev)
{
vibra_disable_leds();
return 0;
}
#endif
static SIMPLE_DEV_PM_OPS(twl4030_vibra_pm_ops,
twl4030_vibra_suspend, twl4030_vibra_resume);
static bool twl4030_vibra_check_coexist(struct twl4030_vibra_data *pdata,
struct device_node *node)
{
if (pdata && pdata->coexist)
return true;
if (of_find_node_by_name(node, "codec"))
return true;
return false;
}
static int twl4030_vibra_probe(struct platform_device *pdev)
{
struct twl4030_vibra_data *pdata = pdev->dev.platform_data;
struct device_node *twl4030_core_node = pdev->dev.parent->of_node;
struct vibra_info *info;
int ret;
if (!pdata && !twl4030_core_node) {
dev_dbg(&pdev->dev, "platform_data not available\n");
return -EINVAL;
}
info = devm_kzalloc(&pdev->dev, sizeof(*info), GFP_KERNEL);
if (!info)
return -ENOMEM;
info->dev = &pdev->dev;
info->coexist = twl4030_vibra_check_coexist(pdata, twl4030_core_node);
INIT_WORK(&info->play_work, vibra_play_work);
info->input_dev = devm_input_allocate_device(&pdev->dev);
if (info->input_dev == NULL) {
dev_err(&pdev->dev, "couldn't allocate input device\n");
return -ENOMEM;
}
input_set_drvdata(info->input_dev, info);
info->input_dev->name = "twl4030:vibrator";
info->input_dev->id.version = 1;
info->input_dev->dev.parent = pdev->dev.parent;
info->input_dev->close = twl4030_vibra_close;
__set_bit(FF_RUMBLE, info->input_dev->ffbit);
ret = input_ff_create_memless(info->input_dev, NULL, vibra_play);
if (ret < 0) {
dev_dbg(&pdev->dev, "couldn't register vibrator to FF\n");
return ret;
}
ret = input_register_device(info->input_dev);
if (ret < 0) {
dev_dbg(&pdev->dev, "couldn't register input device\n");
goto err_iff;
}
vibra_disable_leds();
platform_set_drvdata(pdev, info);
return 0;
err_iff:
input_ff_destroy(info->input_dev);
return ret;
}
static struct platform_driver twl4030_vibra_driver = {
.probe = twl4030_vibra_probe,
.driver = {
.name = "twl4030-vibra",
.owner = THIS_MODULE,
.pm = &twl4030_vibra_pm_ops,
},
};
module_platform_driver(twl4030_vibra_driver);
MODULE_ALIAS("platform:twl4030-vibra");
MODULE_DESCRIPTION("TWL4030 Vibra driver");
MODULE_LICENSE("GPL");
MODULE_AUTHOR("Nokia Corporation");

431
drivers/input/misc/twl6040-vibra.c Normal file
View File

@@ -0,0 +1,431 @@
/*
* twl6040-vibra.c - TWL6040 Vibrator driver
*
* Author: Jorge Eduardo Candelaria <jorge.candelaria@ti.com>
* Author: Misael Lopez Cruz <misael.lopez@ti.com>
*
* Copyright: (C) 2011 Texas Instruments, Inc.
*
* Based on twl4030-vibra.c by Henrik Saari <henrik.saari@nokia.com>
* Felipe Balbi <felipe.balbi@nokia.com>
* Jari Vanhala <ext-javi.vanhala@nokia.com>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
* 02110-1301 USA
*
*/
#include <linux/module.h>
#include <linux/platform_device.h>
#include <linux/of.h>
#include <linux/workqueue.h>
#include <linux/input.h>
#include <linux/mfd/twl6040.h>
#include <linux/slab.h>
#include <linux/delay.h>
#include <linux/regulator/consumer.h>
#define EFFECT_DIR_180_DEG 0x8000
/* Recommended modulation index 85% */
#define TWL6040_VIBRA_MOD 85
#define TWL6040_NUM_SUPPLIES 2
struct vibra_info {
struct device *dev;
struct input_dev *input_dev;
struct workqueue_struct *workqueue;
struct work_struct play_work;
struct mutex mutex;
int irq;
bool enabled;
int weak_speed;
int strong_speed;
int direction;
unsigned int vibldrv_res;
unsigned int vibrdrv_res;
unsigned int viblmotor_res;
unsigned int vibrmotor_res;
struct regulator_bulk_data supplies[TWL6040_NUM_SUPPLIES];
struct twl6040 *twl6040;
};
static irqreturn_t twl6040_vib_irq_handler(int irq, void *data)
{
struct vibra_info *info = data;
struct twl6040 *twl6040 = info->twl6040;
u8 status;
status = twl6040_reg_read(twl6040, TWL6040_REG_STATUS);
if (status & TWL6040_VIBLOCDET) {
dev_warn(info->dev, "Left Vibrator overcurrent detected\n");
twl6040_clear_bits(twl6040, TWL6040_REG_VIBCTLL,
TWL6040_VIBENA);
}
if (status & TWL6040_VIBROCDET) {
dev_warn(info->dev, "Right Vibrator overcurrent detected\n");
twl6040_clear_bits(twl6040, TWL6040_REG_VIBCTLR,
TWL6040_VIBENA);
}
return IRQ_HANDLED;
}
static void twl6040_vibra_enable(struct vibra_info *info)
{
struct twl6040 *twl6040 = info->twl6040;
int ret;
ret = regulator_bulk_enable(ARRAY_SIZE(info->supplies), info->supplies);
if (ret) {
dev_err(info->dev, "failed to enable regulators %d\n", ret);
return;
}
twl6040_power(info->twl6040, 1);
if (twl6040_get_revid(twl6040) <= TWL6040_REV_ES1_1) {
/*
* ERRATA: Disable overcurrent protection for at least
* 3ms when enabling vibrator drivers to avoid false
* overcurrent detection
*/
twl6040_reg_write(twl6040, TWL6040_REG_VIBCTLL,
TWL6040_VIBENA | TWL6040_VIBCTRL);
twl6040_reg_write(twl6040, TWL6040_REG_VIBCTLR,
TWL6040_VIBENA | TWL6040_VIBCTRL);
usleep_range(3000, 3500);
}
twl6040_reg_write(twl6040, TWL6040_REG_VIBCTLL,
TWL6040_VIBENA);
twl6040_reg_write(twl6040, TWL6040_REG_VIBCTLR,
TWL6040_VIBENA);
info->enabled = true;
}
static void twl6040_vibra_disable(struct vibra_info *info)
{
struct twl6040 *twl6040 = info->twl6040;
twl6040_reg_write(twl6040, TWL6040_REG_VIBCTLL, 0x00);
twl6040_reg_write(twl6040, TWL6040_REG_VIBCTLR, 0x00);
twl6040_power(info->twl6040, 0);
regulator_bulk_disable(ARRAY_SIZE(info->supplies), info->supplies);
info->enabled = false;
}
static u8 twl6040_vibra_code(int vddvib, int vibdrv_res, int motor_res,
int speed, int direction)
{
int vpk, max_code;
u8 vibdat;
/* output swing */
vpk = (vddvib * motor_res * TWL6040_VIBRA_MOD) /
(100 * (vibdrv_res + motor_res));
/* 50mV per VIBDAT code step */
max_code = vpk / 50;
if (max_code > TWL6040_VIBDAT_MAX)
max_code = TWL6040_VIBDAT_MAX;
/* scale speed to max allowed code */
vibdat = (u8)((speed * max_code) / USHRT_MAX);
/* 2's complement for direction > 180 degrees */
vibdat *= direction;
return vibdat;
}
static void twl6040_vibra_set_effect(struct vibra_info *info)
{
struct twl6040 *twl6040 = info->twl6040;
u8 vibdatl, vibdatr;
int volt;
/* weak motor */
volt = regulator_get_voltage(info->supplies[0].consumer) / 1000;
vibdatl = twl6040_vibra_code(volt, info->vibldrv_res,
info->viblmotor_res,
info->weak_speed, info->direction);
/* strong motor */
volt = regulator_get_voltage(info->supplies[1].consumer) / 1000;
vibdatr = twl6040_vibra_code(volt, info->vibrdrv_res,
info->vibrmotor_res,
info->strong_speed, info->direction);
twl6040_reg_write(twl6040, TWL6040_REG_VIBDATL, vibdatl);
twl6040_reg_write(twl6040, TWL6040_REG_VIBDATR, vibdatr);
}
static void vibra_play_work(struct work_struct *work)
{
struct vibra_info *info = container_of(work,
struct vibra_info, play_work);
mutex_lock(&info->mutex);
if (info->weak_speed || info->strong_speed) {
if (!info->enabled)
twl6040_vibra_enable(info);
twl6040_vibra_set_effect(info);
} else if (info->enabled)
twl6040_vibra_disable(info);
mutex_unlock(&info->mutex);
}
static int vibra_play(struct input_dev *input, void *data,
struct ff_effect *effect)
{
struct vibra_info *info = input_get_drvdata(input);
int ret;
/* Do not allow effect, while the routing is set to use audio */
ret = twl6040_get_vibralr_status(info->twl6040);
if (ret & TWL6040_VIBSEL) {
dev_info(&input->dev, "Vibra is configured for audio\n");
return -EBUSY;
}
info->weak_speed = effect->u.rumble.weak_magnitude;
info->strong_speed = effect->u.rumble.strong_magnitude;
info->direction = effect->direction < EFFECT_DIR_180_DEG ? 1 : -1;
ret = queue_work(info->workqueue, &info->play_work);
if (!ret) {
dev_info(&input->dev, "work is already on queue\n");
return ret;
}
return 0;
}
static void twl6040_vibra_close(struct input_dev *input)
{
struct vibra_info *info = input_get_drvdata(input);
cancel_work_sync(&info->play_work);
mutex_lock(&info->mutex);
if (info->enabled)
twl6040_vibra_disable(info);
mutex_unlock(&info->mutex);
}
#ifdef CONFIG_PM_SLEEP
static int twl6040_vibra_suspend(struct device *dev)
{
struct platform_device *pdev = to_platform_device(dev);
struct vibra_info *info = platform_get_drvdata(pdev);
mutex_lock(&info->mutex);
if (info->enabled)
twl6040_vibra_disable(info);
mutex_unlock(&info->mutex);
return 0;
}
#endif
static SIMPLE_DEV_PM_OPS(twl6040_vibra_pm_ops, twl6040_vibra_suspend, NULL);
static int twl6040_vibra_probe(struct platform_device *pdev)
{
struct twl6040_vibra_data *pdata = pdev->dev.platform_data;
struct device *twl6040_core_dev = pdev->dev.parent;
struct device_node *twl6040_core_node = NULL;
struct vibra_info *info;
int vddvibl_uV = 0;
int vddvibr_uV = 0;
int ret;
#ifdef CONFIG_OF
twl6040_core_node = of_find_node_by_name(twl6040_core_dev->of_node,
"vibra");
#endif
if (!pdata && !twl6040_core_node) {
dev_err(&pdev->dev, "platform_data not available\n");
return -EINVAL;
}
info = devm_kzalloc(&pdev->dev, sizeof(*info), GFP_KERNEL);
if (!info) {
dev_err(&pdev->dev, "couldn't allocate memory\n");
return -ENOMEM;
}
info->dev = &pdev->dev;
info->twl6040 = dev_get_drvdata(pdev->dev.parent);
if (pdata) {
info->vibldrv_res = pdata->vibldrv_res;
info->vibrdrv_res = pdata->vibrdrv_res;
info->viblmotor_res = pdata->viblmotor_res;
info->vibrmotor_res = pdata->vibrmotor_res;
vddvibl_uV = pdata->vddvibl_uV;
vddvibr_uV = pdata->vddvibr_uV;
} else {
of_property_read_u32(twl6040_core_node, "ti,vibldrv-res",
&info->vibldrv_res);
of_property_read_u32(twl6040_core_node, "ti,vibrdrv-res",
&info->vibrdrv_res);
of_property_read_u32(twl6040_core_node, "ti,viblmotor-res",
&info->viblmotor_res);
of_property_read_u32(twl6040_core_node, "ti,vibrmotor-res",
&info->vibrmotor_res);
of_property_read_u32(twl6040_core_node, "ti,vddvibl-uV",
&vddvibl_uV);
of_property_read_u32(twl6040_core_node, "ti,vddvibr-uV",
&vddvibr_uV);
}
if ((!info->vibldrv_res && !info->viblmotor_res) ||
(!info->vibrdrv_res && !info->vibrmotor_res)) {
dev_err(info->dev, "invalid vibra driver/motor resistance\n");
return -EINVAL;
}
info->irq = platform_get_irq(pdev, 0);
if (info->irq < 0) {
dev_err(info->dev, "invalid irq\n");
return -EINVAL;
}
mutex_init(&info->mutex);
ret = devm_request_threaded_irq(&pdev->dev, info->irq, NULL,
twl6040_vib_irq_handler, 0,
"twl6040_irq_vib", info);
if (ret) {
dev_err(info->dev, "VIB IRQ request failed: %d\n", ret);
return ret;
}
info->supplies[0].supply = "vddvibl";
info->supplies[1].supply = "vddvibr";
/*
* When booted with Device tree the regulators are attached to the
* parent device (twl6040 MFD core)
*/
ret = regulator_bulk_get(pdata ? info->dev : twl6040_core_dev,
ARRAY_SIZE(info->supplies), info->supplies);
if (ret) {
dev_err(info->dev, "couldn't get regulators %d\n", ret);
return ret;
}
if (vddvibl_uV) {
ret = regulator_set_voltage(info->supplies[0].consumer,
vddvibl_uV, vddvibl_uV);
if (ret) {
dev_err(info->dev, "failed to set VDDVIBL volt %d\n",
ret);
goto err_regulator;
}
}
if (vddvibr_uV) {
ret = regulator_set_voltage(info->supplies[1].consumer,
vddvibr_uV, vddvibr_uV);
if (ret) {
dev_err(info->dev, "failed to set VDDVIBR volt %d\n",
ret);
goto err_regulator;
}
}
INIT_WORK(&info->play_work, vibra_play_work);
info->input_dev = input_allocate_device();
if (info->input_dev == NULL) {
dev_err(info->dev, "couldn't allocate input device\n");
ret = -ENOMEM;
goto err_regulator;
}
input_set_drvdata(info->input_dev, info);
info->input_dev->name = "twl6040:vibrator";
info->input_dev->id.version = 1;
info->input_dev->dev.parent = pdev->dev.parent;
info->input_dev->close = twl6040_vibra_close;
__set_bit(FF_RUMBLE, info->input_dev->ffbit);
ret = input_ff_create_memless(info->input_dev, NULL, vibra_play);
if (ret < 0) {
dev_err(info->dev, "couldn't register vibrator to FF\n");
goto err_ialloc;
}
ret = input_register_device(info->input_dev);
if (ret < 0) {
dev_err(info->dev, "couldn't register input device\n");
goto err_iff;
}
platform_set_drvdata(pdev, info);
return 0;
err_iff:
input_ff_destroy(info->input_dev);
err_ialloc:
input_free_device(info->input_dev);
err_regulator:
regulator_bulk_free(ARRAY_SIZE(info->supplies), info->supplies);
return ret;
}
static int twl6040_vibra_remove(struct platform_device *pdev)
{
struct vibra_info *info = platform_get_drvdata(pdev);
input_unregister_device(info->input_dev);
regulator_bulk_free(ARRAY_SIZE(info->supplies), info->supplies);
return 0;
}
static struct platform_driver twl6040_vibra_driver = {
.probe = twl6040_vibra_probe,
.remove = twl6040_vibra_remove,
.driver = {
.name = "twl6040-vibra",
.owner = THIS_MODULE,
.pm = &twl6040_vibra_pm_ops,
},
};
module_platform_driver(twl6040_vibra_driver);
MODULE_ALIAS("platform:twl6040-vibra");
MODULE_DESCRIPTION("TWL6040 Vibra driver");
MODULE_LICENSE("GPL");
MODULE_AUTHOR("Jorge Eduardo Candelaria <jorge.candelaria@ti.com>");
MODULE_AUTHOR("Misael Lopez Cruz <misael.lopez@ti.com>");

883
drivers/input/misc/uinput.c Normal file
View File

@@ -0,0 +1,883 @@
/*
* User level driver support for input subsystem
*
* Heavily based on evdev.c by Vojtech Pavlik
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*
* Author: Aristeu Sergio Rozanski Filho <aris@cathedrallabs.org>
*
* Changes/Revisions:
* 0.3 09/04/2006 (Anssi Hannula <anssi.hannula@gmail.com>)
* - updated ff support for the changes in kernel interface
* - added MODULE_VERSION
* 0.2 16/10/2004 (Micah Dowty <micah@navi.cx>)
* - added force feedback support
* - added UI_SET_PHYS
* 0.1 20/06/2002
* - first public version
*/
#include <linux/poll.h>
#include <linux/sched.h>
#include <linux/slab.h>
#include <linux/module.h>
#include <linux/init.h>
#include <linux/fs.h>
#include <linux/miscdevice.h>
#include <linux/uinput.h>
#include <linux/input/mt.h>
#include "../input-compat.h"
static int uinput_dev_event(struct input_dev *dev,
unsigned int type, unsigned int code, int value)
{
struct uinput_device *udev = input_get_drvdata(dev);
udev->buff[udev->head].type = type;
udev->buff[udev->head].code = code;
udev->buff[udev->head].value = value;
do_gettimeofday(&udev->buff[udev->head].time);
udev->head = (udev->head + 1) % UINPUT_BUFFER_SIZE;
wake_up_interruptible(&udev->waitq);
return 0;
}
/* Atomically allocate an ID for the given request. Returns 0 on success. */
static bool uinput_request_alloc_id(struct uinput_device *udev,
struct uinput_request *request)
{
unsigned int id;
bool reserved = false;
spin_lock(&udev->requests_lock);
for (id = 0; id < UINPUT_NUM_REQUESTS; id++) {
if (!udev->requests[id]) {
request->id = id;
udev->requests[id] = request;
reserved = true;
break;
}
}
spin_unlock(&udev->requests_lock);
return reserved;
}
static struct uinput_request *uinput_request_find(struct uinput_device *udev,
unsigned int id)
{
/* Find an input request, by ID. Returns NULL if the ID isn't valid. */
if (id >= UINPUT_NUM_REQUESTS)
return NULL;
return udev->requests[id];
}
static int uinput_request_reserve_slot(struct uinput_device *udev,
struct uinput_request *request)
{
/* Allocate slot. If none are available right away, wait. */
return wait_event_interruptible(udev->requests_waitq,
uinput_request_alloc_id(udev, request));
}
static void uinput_request_done(struct uinput_device *udev,
struct uinput_request *request)
{
/* Mark slot as available */
udev->requests[request->id] = NULL;
wake_up(&udev->requests_waitq);
complete(&request->done);
}
static int uinput_request_send(struct uinput_device *udev,
struct uinput_request *request)
{
int retval;
retval = mutex_lock_interruptible(&udev->mutex);
if (retval)
return retval;
if (udev->state != UIST_CREATED) {
retval = -ENODEV;
goto out;
}
init_completion(&request->done);
/*
* Tell our userspace application about this new request
* by queueing an input event.
*/
uinput_dev_event(udev->dev, EV_UINPUT, request->code, request->id);
out:
mutex_unlock(&udev->mutex);
return retval;
}
static int uinput_request_submit(struct uinput_device *udev,
struct uinput_request *request)
{
int error;
error = uinput_request_reserve_slot(udev, request);
if (error)
return error;
error = uinput_request_send(udev, request);
if (error) {
uinput_request_done(udev, request);
return error;
}
wait_for_completion(&request->done);
return request->retval;
}
/*
* Fail all outstanding requests so handlers don't wait for the userspace
* to finish processing them.
*/
static void uinput_flush_requests(struct uinput_device *udev)
{
struct uinput_request *request;
int i;
spin_lock(&udev->requests_lock);
for (i = 0; i < UINPUT_NUM_REQUESTS; i++) {
request = udev->requests[i];
if (request) {
request->retval = -ENODEV;
uinput_request_done(udev, request);
}
}
spin_unlock(&udev->requests_lock);
}
static void uinput_dev_set_gain(struct input_dev *dev, u16 gain)
{
uinput_dev_event(dev, EV_FF, FF_GAIN, gain);
}
static void uinput_dev_set_autocenter(struct input_dev *dev, u16 magnitude)
{
uinput_dev_event(dev, EV_FF, FF_AUTOCENTER, magnitude);
}
static int uinput_dev_playback(struct input_dev *dev, int effect_id, int value)
{
return uinput_dev_event(dev, EV_FF, effect_id, value);
}
static int uinput_dev_upload_effect(struct input_dev *dev,
struct ff_effect *effect,
struct ff_effect *old)
{
struct uinput_device *udev = input_get_drvdata(dev);
struct uinput_request request;
/*
* uinput driver does not currently support periodic effects with
* custom waveform since it does not have a way to pass buffer of
* samples (custom_data) to userspace. If ever there is a device
* supporting custom waveforms we would need to define an additional
* ioctl (UI_UPLOAD_SAMPLES) but for now we just bail out.
*/
if (effect->type == FF_PERIODIC &&
effect->u.periodic.waveform == FF_CUSTOM)
return -EINVAL;
request.code = UI_FF_UPLOAD;
request.u.upload.effect = effect;
request.u.upload.old = old;
return uinput_request_submit(udev, &request);
}
static int uinput_dev_erase_effect(struct input_dev *dev, int effect_id)
{
struct uinput_device *udev = input_get_drvdata(dev);
struct uinput_request request;
if (!test_bit(EV_FF, dev->evbit))
return -ENOSYS;
request.code = UI_FF_ERASE;
request.u.effect_id = effect_id;
return uinput_request_submit(udev, &request);
}
static void uinput_destroy_device(struct uinput_device *udev)
{
const char *name, *phys;
struct input_dev *dev = udev->dev;
enum uinput_state old_state = udev->state;
udev->state = UIST_NEW_DEVICE;
if (dev) {
name = dev->name;
phys = dev->phys;
if (old_state == UIST_CREATED) {
uinput_flush_requests(udev);
input_unregister_device(dev);
} else {
input_free_device(dev);
}
kfree(name);
kfree(phys);
udev->dev = NULL;
}
}
static int uinput_create_device(struct uinput_device *udev)
{
struct input_dev *dev = udev->dev;
int error;
if (udev->state != UIST_SETUP_COMPLETE) {
printk(KERN_DEBUG "%s: write device info first\n", UINPUT_NAME);
return -EINVAL;
}
if (udev->ff_effects_max) {
error = input_ff_create(dev, udev->ff_effects_max);
if (error)
goto fail1;
dev->ff->upload = uinput_dev_upload_effect;
dev->ff->erase = uinput_dev_erase_effect;
dev->ff->playback = uinput_dev_playback;
dev->ff->set_gain = uinput_dev_set_gain;
dev->ff->set_autocenter = uinput_dev_set_autocenter;
}
error = input_register_device(udev->dev);
if (error)
goto fail2;
udev->state = UIST_CREATED;
return 0;
fail2: input_ff_destroy(dev);
fail1: uinput_destroy_device(udev);
return error;
}
static int uinput_open(struct inode *inode, struct file *file)
{
struct uinput_device *newdev;
newdev = kzalloc(sizeof(struct uinput_device), GFP_KERNEL);
if (!newdev)
return -ENOMEM;
mutex_init(&newdev->mutex);
spin_lock_init(&newdev->requests_lock);
init_waitqueue_head(&newdev->requests_waitq);
init_waitqueue_head(&newdev->waitq);
newdev->state = UIST_NEW_DEVICE;
file->private_data = newdev;
nonseekable_open(inode, file);
return 0;
}
static int uinput_validate_absbits(struct input_dev *dev)
{
unsigned int cnt;
int retval = 0;
for (cnt = 0; cnt < ABS_CNT; cnt++) {
int min, max;
if (!test_bit(cnt, dev->absbit))
continue;
min = input_abs_get_min(dev, cnt);
max = input_abs_get_max(dev, cnt);
if ((min != 0 || max != 0) && max <= min) {
printk(KERN_DEBUG
"%s: invalid abs[%02x] min:%d max:%d\n",
UINPUT_NAME, cnt,
input_abs_get_min(dev, cnt),
input_abs_get_max(dev, cnt));
retval = -EINVAL;
break;
}
if (input_abs_get_flat(dev, cnt) >
input_abs_get_max(dev, cnt) - input_abs_get_min(dev, cnt)) {
printk(KERN_DEBUG
"%s: abs_flat #%02x out of range: %d "
"(min:%d/max:%d)\n",
UINPUT_NAME, cnt,
input_abs_get_flat(dev, cnt),
input_abs_get_min(dev, cnt),
input_abs_get_max(dev, cnt));
retval = -EINVAL;
break;
}
}
return retval;
}
static int uinput_allocate_device(struct uinput_device *udev)
{
udev->dev = input_allocate_device();
if (!udev->dev)
return -ENOMEM;
udev->dev->event = uinput_dev_event;
input_set_drvdata(udev->dev, udev);
return 0;
}
static int uinput_setup_device(struct uinput_device *udev,
const char __user *buffer, size_t count)
{
struct uinput_user_dev *user_dev;
struct input_dev *dev;
int i;
int retval;
if (count != sizeof(struct uinput_user_dev))
return -EINVAL;
if (!udev->dev) {
retval = uinput_allocate_device(udev);
if (retval)
return retval;
}
dev = udev->dev;
user_dev = memdup_user(buffer, sizeof(struct uinput_user_dev));
if (IS_ERR(user_dev))
return PTR_ERR(user_dev);
udev->ff_effects_max = user_dev->ff_effects_max;
/* Ensure name is filled in */
if (!user_dev->name[0]) {
retval = -EINVAL;
goto exit;
}
kfree(dev->name);
dev->name = kstrndup(user_dev->name, UINPUT_MAX_NAME_SIZE,
GFP_KERNEL);
if (!dev->name) {
retval = -ENOMEM;
goto exit;
}
dev->id.bustype = user_dev->id.bustype;
dev->id.vendor = user_dev->id.vendor;
dev->id.product = user_dev->id.product;
dev->id.version = user_dev->id.version;
for (i = 0; i < ABS_CNT; i++) {
input_abs_set_max(dev, i, user_dev->absmax[i]);
input_abs_set_min(dev, i, user_dev->absmin[i]);
input_abs_set_fuzz(dev, i, user_dev->absfuzz[i]);
input_abs_set_flat(dev, i, user_dev->absflat[i]);
}
/* check if absmin/absmax/absfuzz/absflat are filled as
* told in Documentation/input/input-programming.txt */
if (test_bit(EV_ABS, dev->evbit)) {
retval = uinput_validate_absbits(dev);
if (retval < 0)
goto exit;
if (test_bit(ABS_MT_SLOT, dev->absbit)) {
int nslot = input_abs_get_max(dev, ABS_MT_SLOT) + 1;
input_mt_init_slots(dev, nslot, 0);
} else if (test_bit(ABS_MT_POSITION_X, dev->absbit)) {
input_set_events_per_packet(dev, 60);
}
}
udev->state = UIST_SETUP_COMPLETE;
retval = count;
exit:
kfree(user_dev);
return retval;
}
static ssize_t uinput_inject_event(struct uinput_device *udev,
const char __user *buffer, size_t count)
{
struct input_event ev;
if (count < input_event_size())
return -EINVAL;
if (input_event_from_user(buffer, &ev))
return -EFAULT;
input_event(udev->dev, ev.type, ev.code, ev.value);
return input_event_size();
}
static ssize_t uinput_write(struct file *file, const char __user *buffer,
size_t count, loff_t *ppos)
{
struct uinput_device *udev = file->private_data;
int retval;
if (count == 0)
return 0;
retval = mutex_lock_interruptible(&udev->mutex);
if (retval)
return retval;
retval = udev->state == UIST_CREATED ?
uinput_inject_event(udev, buffer, count) :
uinput_setup_device(udev, buffer, count);
mutex_unlock(&udev->mutex);
return retval;
}
static bool uinput_fetch_next_event(struct uinput_device *udev,
struct input_event *event)
{
bool have_event;
spin_lock_irq(&udev->dev->event_lock);
have_event = udev->head != udev->tail;
if (have_event) {
*event = udev->buff[udev->tail];
udev->tail = (udev->tail + 1) % UINPUT_BUFFER_SIZE;
}
spin_unlock_irq(&udev->dev->event_lock);
return have_event;
}
static ssize_t uinput_events_to_user(struct uinput_device *udev,
char __user *buffer, size_t count)
{
struct input_event event;
size_t read = 0;
while (read + input_event_size() <= count &&
uinput_fetch_next_event(udev, &event)) {
if (input_event_to_user(buffer + read, &event))
return -EFAULT;
read += input_event_size();
}
return read;
}
static ssize_t uinput_read(struct file *file, char __user *buffer,
size_t count, loff_t *ppos)
{
struct uinput_device *udev = file->private_data;
ssize_t retval;
if (count != 0 && count < input_event_size())
return -EINVAL;
do {
retval = mutex_lock_interruptible(&udev->mutex);
if (retval)
return retval;
if (udev->state != UIST_CREATED)
retval = -ENODEV;
else if (udev->head == udev->tail &&
(file->f_flags & O_NONBLOCK))
retval = -EAGAIN;
else
retval = uinput_events_to_user(udev, buffer, count);
mutex_unlock(&udev->mutex);
if (retval || count == 0)
break;
if (!(file->f_flags & O_NONBLOCK))
retval = wait_event_interruptible(udev->waitq,
udev->head != udev->tail ||
udev->state != UIST_CREATED);
} while (retval == 0);
return retval;
}
static unsigned int uinput_poll(struct file *file, poll_table *wait)
{
struct uinput_device *udev = file->private_data;
poll_wait(file, &udev->waitq, wait);
if (udev->head != udev->tail)
return POLLIN | POLLRDNORM;
return 0;
}
static int uinput_release(struct inode *inode, struct file *file)
{
struct uinput_device *udev = file->private_data;
uinput_destroy_device(udev);
kfree(udev);
return 0;
}
#ifdef CONFIG_COMPAT
struct uinput_ff_upload_compat {
__u32 request_id;
__s32 retval;
struct ff_effect_compat effect;
struct ff_effect_compat old;
};
static int uinput_ff_upload_to_user(char __user *buffer,
const struct uinput_ff_upload *ff_up)
{
if (INPUT_COMPAT_TEST) {
struct uinput_ff_upload_compat ff_up_compat;
ff_up_compat.request_id = ff_up->request_id;
ff_up_compat.retval = ff_up->retval;
/*
* It so happens that the pointer that gives us the trouble
* is the last field in the structure. Since we don't support
* custom waveforms in uinput anyway we can just copy the whole
* thing (to the compat size) and ignore the pointer.
*/
memcpy(&ff_up_compat.effect, &ff_up->effect,
sizeof(struct ff_effect_compat));
memcpy(&ff_up_compat.old, &ff_up->old,
sizeof(struct ff_effect_compat));
if (copy_to_user(buffer, &ff_up_compat,
sizeof(struct uinput_ff_upload_compat)))
return -EFAULT;
} else {
if (copy_to_user(buffer, ff_up,
sizeof(struct uinput_ff_upload)))
return -EFAULT;
}
return 0;
}
static int uinput_ff_upload_from_user(const char __user *buffer,
struct uinput_ff_upload *ff_up)
{
if (INPUT_COMPAT_TEST) {
struct uinput_ff_upload_compat ff_up_compat;
if (copy_from_user(&ff_up_compat, buffer,
sizeof(struct uinput_ff_upload_compat)))
return -EFAULT;
ff_up->request_id = ff_up_compat.request_id;
ff_up->retval = ff_up_compat.retval;
memcpy(&ff_up->effect, &ff_up_compat.effect,
sizeof(struct ff_effect_compat));
memcpy(&ff_up->old, &ff_up_compat.old,
sizeof(struct ff_effect_compat));
} else {
if (copy_from_user(ff_up, buffer,
sizeof(struct uinput_ff_upload)))
return -EFAULT;
}
return 0;
}
#else
static int uinput_ff_upload_to_user(char __user *buffer,
const struct uinput_ff_upload *ff_up)
{
if (copy_to_user(buffer, ff_up, sizeof(struct uinput_ff_upload)))
return -EFAULT;
return 0;
}
static int uinput_ff_upload_from_user(const char __user *buffer,
struct uinput_ff_upload *ff_up)
{
if (copy_from_user(ff_up, buffer, sizeof(struct uinput_ff_upload)))
return -EFAULT;
return 0;
}
#endif
#define uinput_set_bit(_arg, _bit, _max) \
({ \
int __ret = 0; \
if (udev->state == UIST_CREATED) \
__ret = -EINVAL; \
else if ((_arg) > (_max)) \
__ret = -EINVAL; \
else set_bit((_arg), udev->dev->_bit); \
__ret; \
})
static long uinput_ioctl_handler(struct file *file, unsigned int cmd,
unsigned long arg, void __user *p)
{
int retval;
struct uinput_device *udev = file->private_data;
struct uinput_ff_upload ff_up;
struct uinput_ff_erase ff_erase;
struct uinput_request *req;
char *phys;
retval = mutex_lock_interruptible(&udev->mutex);
if (retval)
return retval;
if (!udev->dev) {
retval = uinput_allocate_device(udev);
if (retval)
goto out;
}
switch (cmd) {
case UI_DEV_CREATE:
retval = uinput_create_device(udev);
break;
case UI_DEV_DESTROY:
uinput_destroy_device(udev);
break;
case UI_SET_EVBIT:
retval = uinput_set_bit(arg, evbit, EV_MAX);
break;
case UI_SET_KEYBIT:
retval = uinput_set_bit(arg, keybit, KEY_MAX);
break;
case UI_SET_RELBIT:
retval = uinput_set_bit(arg, relbit, REL_MAX);
break;
case UI_SET_ABSBIT:
retval = uinput_set_bit(arg, absbit, ABS_MAX);
break;
case UI_SET_MSCBIT:
retval = uinput_set_bit(arg, mscbit, MSC_MAX);
break;
case UI_SET_LEDBIT:
retval = uinput_set_bit(arg, ledbit, LED_MAX);
break;
case UI_SET_SNDBIT:
retval = uinput_set_bit(arg, sndbit, SND_MAX);
break;
case UI_SET_FFBIT:
retval = uinput_set_bit(arg, ffbit, FF_MAX);
break;
case UI_SET_SWBIT:
retval = uinput_set_bit(arg, swbit, SW_MAX);
break;
case UI_SET_PROPBIT:
retval = uinput_set_bit(arg, propbit, INPUT_PROP_MAX);
break;
case UI_SET_PHYS:
if (udev->state == UIST_CREATED) {
retval = -EINVAL;
goto out;
}
phys = strndup_user(p, 1024);
if (IS_ERR(phys)) {
retval = PTR_ERR(phys);
goto out;
}
kfree(udev->dev->phys);
udev->dev->phys = phys;
break;
case UI_BEGIN_FF_UPLOAD:
retval = uinput_ff_upload_from_user(p, &ff_up);
if (retval)
break;
req = uinput_request_find(udev, ff_up.request_id);
if (!req || req->code != UI_FF_UPLOAD ||
!req->u.upload.effect) {
retval = -EINVAL;
break;
}
ff_up.retval = 0;
ff_up.effect = *req->u.upload.effect;
if (req->u.upload.old)
ff_up.old = *req->u.upload.old;
else
memset(&ff_up.old, 0, sizeof(struct ff_effect));
retval = uinput_ff_upload_to_user(p, &ff_up);
break;
case UI_BEGIN_FF_ERASE:
if (copy_from_user(&ff_erase, p, sizeof(ff_erase))) {
retval = -EFAULT;
break;
}
req = uinput_request_find(udev, ff_erase.request_id);
if (!req || req->code != UI_FF_ERASE) {
retval = -EINVAL;
break;
}
ff_erase.retval = 0;
ff_erase.effect_id = req->u.effect_id;
if (copy_to_user(p, &ff_erase, sizeof(ff_erase))) {
retval = -EFAULT;
break;
}
break;
case UI_END_FF_UPLOAD:
retval = uinput_ff_upload_from_user(p, &ff_up);
if (retval)
break;
req = uinput_request_find(udev, ff_up.request_id);
if (!req || req->code != UI_FF_UPLOAD ||
!req->u.upload.effect) {
retval = -EINVAL;
break;
}
req->retval = ff_up.retval;
uinput_request_done(udev, req);
break;
case UI_END_FF_ERASE:
if (copy_from_user(&ff_erase, p, sizeof(ff_erase))) {
retval = -EFAULT;
break;
}
req = uinput_request_find(udev, ff_erase.request_id);
if (!req || req->code != UI_FF_ERASE) {
retval = -EINVAL;
break;
}
req->retval = ff_erase.retval;
uinput_request_done(udev, req);
break;
default:
retval = -EINVAL;
}
out:
mutex_unlock(&udev->mutex);
return retval;
}
static long uinput_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
{
return uinput_ioctl_handler(file, cmd, arg, (void __user *)arg);
}
#ifdef CONFIG_COMPAT
static long uinput_compat_ioctl(struct file *file,
unsigned int cmd, unsigned long arg)
{
return uinput_ioctl_handler(file, cmd, arg, compat_ptr(arg));
}
#endif
static const struct file_operations uinput_fops = {
.owner = THIS_MODULE,
.open = uinput_open,
.release = uinput_release,
.read = uinput_read,
.write = uinput_write,
.poll = uinput_poll,
.unlocked_ioctl = uinput_ioctl,
#ifdef CONFIG_COMPAT
.compat_ioctl = uinput_compat_ioctl,
#endif
.llseek = no_llseek,
};
static struct miscdevice uinput_misc = {
.fops = &uinput_fops,
.minor = UINPUT_MINOR,
.name = UINPUT_NAME,
};
MODULE_ALIAS_MISCDEV(UINPUT_MINOR);
MODULE_ALIAS("devname:" UINPUT_NAME);
static int __init uinput_init(void)
{
return misc_register(&uinput_misc);
}
static void __exit uinput_exit(void)
{
misc_deregister(&uinput_misc);
}
MODULE_AUTHOR("Aristeu Sergio Rozanski Filho");
MODULE_DESCRIPTION("User level driver support for input subsystem");
MODULE_LICENSE("GPL");
MODULE_VERSION("0.3");
module_init(uinput_init);
module_exit(uinput_exit);

1389
drivers/input/misc/wistron_btns.c Normal file
View File

File diff suppressed because it is too large Load Diff

151
drivers/input/misc/wm831x-on.c Normal file
View File

@@ -0,0 +1,151 @@
/**
* wm831x-on.c - WM831X ON pin driver
*
* Copyright (C) 2009 Wolfson Microelectronics plc
*
* This file is subject to the terms and conditions of the GNU General
* Public License. See the file "COPYING" in the main directory of this
* archive for more details.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#include <linux/module.h>
#include <linux/init.h>
#include <linux/slab.h>
#include <linux/kernel.h>
#include <linux/errno.h>
#include <linux/input.h>
#include <linux/interrupt.h>
#include <linux/platform_device.h>
#include <linux/workqueue.h>
#include <linux/mfd/wm831x/core.h>
struct wm831x_on {
struct input_dev *dev;
struct delayed_work work;
struct wm831x *wm831x;
};
/*
* The chip gives us an interrupt when the ON pin is asserted but we
* then need to poll to see when the pin is deasserted.
*/
static void wm831x_poll_on(struct work_struct *work)
{
struct wm831x_on *wm831x_on = container_of(work, struct wm831x_on,
work.work);
struct wm831x *wm831x = wm831x_on->wm831x;
int poll, ret;
ret = wm831x_reg_read(wm831x, WM831X_ON_PIN_CONTROL);
if (ret >= 0) {
poll = !(ret & WM831X_ON_PIN_STS);
input_report_key(wm831x_on->dev, KEY_POWER, poll);
input_sync(wm831x_on->dev);
} else {
dev_err(wm831x->dev, "Failed to read ON status: %d\n", ret);
poll = 1;
}
if (poll)
schedule_delayed_work(&wm831x_on->work, 100);
}
static irqreturn_t wm831x_on_irq(int irq, void *data)
{
struct wm831x_on *wm831x_on = data;
schedule_delayed_work(&wm831x_on->work, 0);
return IRQ_HANDLED;
}
static int wm831x_on_probe(struct platform_device *pdev)
{
struct wm831x *wm831x = dev_get_drvdata(pdev->dev.parent);
struct wm831x_on *wm831x_on;
int irq = wm831x_irq(wm831x, platform_get_irq(pdev, 0));
int ret;
wm831x_on = devm_kzalloc(&pdev->dev, sizeof(struct wm831x_on),
GFP_KERNEL);
if (!wm831x_on) {
dev_err(&pdev->dev, "Can't allocate data\n");
return -ENOMEM;
}
wm831x_on->wm831x = wm831x;
INIT_DELAYED_WORK(&wm831x_on->work, wm831x_poll_on);
wm831x_on->dev = devm_input_allocate_device(&pdev->dev);
if (!wm831x_on->dev) {
dev_err(&pdev->dev, "Can't allocate input dev\n");
ret = -ENOMEM;
goto err;
}
wm831x_on->dev->evbit[0] = BIT_MASK(EV_KEY);
wm831x_on->dev->keybit[BIT_WORD(KEY_POWER)] = BIT_MASK(KEY_POWER);
wm831x_on->dev->name = "wm831x_on";
wm831x_on->dev->phys = "wm831x_on/input0";
wm831x_on->dev->dev.parent = &pdev->dev;
ret = request_threaded_irq(irq, NULL, wm831x_on_irq,
IRQF_TRIGGER_RISING, "wm831x_on",
wm831x_on);
if (ret < 0) {
dev_err(&pdev->dev, "Unable to request IRQ: %d\n", ret);
goto err_input_dev;
}
ret = input_register_device(wm831x_on->dev);
if (ret) {
dev_dbg(&pdev->dev, "Can't register input device: %d\n", ret);
goto err_irq;
}
platform_set_drvdata(pdev, wm831x_on);
return 0;
err_irq:
free_irq(irq, wm831x_on);
err_input_dev:
err:
return ret;
}
static int wm831x_on_remove(struct platform_device *pdev)
{
struct wm831x_on *wm831x_on = platform_get_drvdata(pdev);
int irq = platform_get_irq(pdev, 0);
free_irq(irq, wm831x_on);
cancel_delayed_work_sync(&wm831x_on->work);
return 0;
}
static struct platform_driver wm831x_on_driver = {
.probe = wm831x_on_probe,
.remove = wm831x_on_remove,
.driver = {
.name = "wm831x-on",
.owner = THIS_MODULE,
},
};
module_platform_driver(wm831x_on_driver);
MODULE_ALIAS("platform:wm831x-on");
MODULE_DESCRIPTION("WM831x ON pin");
MODULE_LICENSE("GPL");
MODULE_AUTHOR("Mark Brown <broonie@opensource.wolfsonmicro.com>");

396
drivers/input/misc/xen-kbdfront.c Normal file
View File

@@ -0,0 +1,396 @@
/*
* Xen para-virtual input device
*
* Copyright (C) 2005 Anthony Liguori <aliguori@us.ibm.com>
* Copyright (C) 2006-2008 Red Hat, Inc., Markus Armbruster <armbru@redhat.com>
*
* Based on linux/drivers/input/mouse/sermouse.c
*
* This file is subject to the terms and conditions of the GNU General Public
* License. See the file COPYING in the main directory of this archive for
* more details.
*/
#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
#include <linux/kernel.h>
#include <linux/errno.h>
#include <linux/module.h>
#include <linux/input.h>
#include <linux/slab.h>
#include <asm/xen/hypervisor.h>
#include <xen/xen.h>
#include <xen/events.h>
#include <xen/page.h>
#include <xen/grant_table.h>
#include <xen/interface/grant_table.h>
#include <xen/interface/io/fbif.h>
#include <xen/interface/io/kbdif.h>
#include <xen/xenbus.h>
struct xenkbd_info {
struct input_dev *kbd;
struct input_dev *ptr;
struct xenkbd_page *page;
int gref;
int irq;
struct xenbus_device *xbdev;
char phys[32];
};
static int xenkbd_remove(struct xenbus_device *);
static int xenkbd_connect_backend(struct xenbus_device *, struct xenkbd_info *);
static void xenkbd_disconnect_backend(struct xenkbd_info *);
/*
* Note: if you need to send out events, see xenfb_do_update() for how
* to do that.
*/
static irqreturn_t input_handler(int rq, void *dev_id)
{
struct xenkbd_info *info = dev_id;
struct xenkbd_page *page = info->page;
__u32 cons, prod;
prod = page->in_prod;
if (prod == page->in_cons)
return IRQ_HANDLED;
rmb(); /* ensure we see ring contents up to prod */
for (cons = page->in_cons; cons != prod; cons++) {
union xenkbd_in_event *event;
struct input_dev *dev;
event = &XENKBD_IN_RING_REF(page, cons);
dev = info->ptr;
switch (event->type) {
case XENKBD_TYPE_MOTION:
input_report_rel(dev, REL_X, event->motion.rel_x);
input_report_rel(dev, REL_Y, event->motion.rel_y);
if (event->motion.rel_z)
input_report_rel(dev, REL_WHEEL,
-event->motion.rel_z);
break;
case XENKBD_TYPE_KEY:
dev = NULL;
if (test_bit(event->key.keycode, info->kbd->keybit))
dev = info->kbd;
if (test_bit(event->key.keycode, info->ptr->keybit))
dev = info->ptr;
if (dev)
input_report_key(dev, event->key.keycode,
event->key.pressed);
else
pr_warning("unhandled keycode 0x%x\n",
event->key.keycode);
break;
case XENKBD_TYPE_POS:
input_report_abs(dev, ABS_X, event->pos.abs_x);
input_report_abs(dev, ABS_Y, event->pos.abs_y);
if (event->pos.rel_z)
input_report_rel(dev, REL_WHEEL,
-event->pos.rel_z);
break;
}
if (dev)
input_sync(dev);
}
mb(); /* ensure we got ring contents */
page->in_cons = cons;
notify_remote_via_irq(info->irq);
return IRQ_HANDLED;
}
static int xenkbd_probe(struct xenbus_device *dev,
const struct xenbus_device_id *id)
{
int ret, i, abs;
struct xenkbd_info *info;
struct input_dev *kbd, *ptr;
info = kzalloc(sizeof(*info), GFP_KERNEL);
if (!info) {
xenbus_dev_fatal(dev, -ENOMEM, "allocating info structure");
return -ENOMEM;
}
dev_set_drvdata(&dev->dev, info);
info->xbdev = dev;
info->irq = -1;
info->gref = -1;
snprintf(info->phys, sizeof(info->phys), "xenbus/%s", dev->nodename);
info->page = (void *)__get_free_page(GFP_KERNEL | __GFP_ZERO);
if (!info->page)
goto error_nomem;
if (xenbus_scanf(XBT_NIL, dev->otherend, "feature-abs-pointer", "%d", &abs) < 0)
abs = 0;
if (abs)
xenbus_printf(XBT_NIL, dev->nodename, "request-abs-pointer", "1");
/* keyboard */
kbd = input_allocate_device();
if (!kbd)
goto error_nomem;
kbd->name = "Xen Virtual Keyboard";
kbd->phys = info->phys;
kbd->id.bustype = BUS_PCI;
kbd->id.vendor = 0x5853;
kbd->id.product = 0xffff;
__set_bit(EV_KEY, kbd->evbit);
for (i = KEY_ESC; i < KEY_UNKNOWN; i++)
__set_bit(i, kbd->keybit);
for (i = KEY_OK; i < KEY_MAX; i++)
__set_bit(i, kbd->keybit);
ret = input_register_device(kbd);
if (ret) {
input_free_device(kbd);
xenbus_dev_fatal(dev, ret, "input_register_device(kbd)");
goto error;
}
info->kbd = kbd;
/* pointing device */
ptr = input_allocate_device();
if (!ptr)
goto error_nomem;
ptr->name = "Xen Virtual Pointer";
ptr->phys = info->phys;
ptr->id.bustype = BUS_PCI;
ptr->id.vendor = 0x5853;
ptr->id.product = 0xfffe;
if (abs) {
__set_bit(EV_ABS, ptr->evbit);
input_set_abs_params(ptr, ABS_X, 0, XENFB_WIDTH, 0, 0);
input_set_abs_params(ptr, ABS_Y, 0, XENFB_HEIGHT, 0, 0);
} else {
input_set_capability(ptr, EV_REL, REL_X);
input_set_capability(ptr, EV_REL, REL_Y);
}
input_set_capability(ptr, EV_REL, REL_WHEEL);
__set_bit(EV_KEY, ptr->evbit);
for (i = BTN_LEFT; i <= BTN_TASK; i++)
__set_bit(i, ptr->keybit);
ret = input_register_device(ptr);
if (ret) {
input_free_device(ptr);
xenbus_dev_fatal(dev, ret, "input_register_device(ptr)");
goto error;
}
info->ptr = ptr;
ret = xenkbd_connect_backend(dev, info);
if (ret < 0)
goto error;
return 0;
error_nomem:
ret = -ENOMEM;
xenbus_dev_fatal(dev, ret, "allocating device memory");
error:
xenkbd_remove(dev);
return ret;
}
static int xenkbd_resume(struct xenbus_device *dev)
{
struct xenkbd_info *info = dev_get_drvdata(&dev->dev);
xenkbd_disconnect_backend(info);
memset(info->page, 0, PAGE_SIZE);
return xenkbd_connect_backend(dev, info);
}
static int xenkbd_remove(struct xenbus_device *dev)
{
struct xenkbd_info *info = dev_get_drvdata(&dev->dev);
xenkbd_disconnect_backend(info);
if (info->kbd)
input_unregister_device(info->kbd);
if (info->ptr)
input_unregister_device(info->ptr);
free_page((unsigned long)info->page);
kfree(info);
return 0;
}
static int xenkbd_connect_backend(struct xenbus_device *dev,
struct xenkbd_info *info)
{
int ret, evtchn;
struct xenbus_transaction xbt;
ret = gnttab_grant_foreign_access(dev->otherend_id,
virt_to_mfn(info->page), 0);
if (ret < 0)
return ret;
info->gref = ret;
ret = xenbus_alloc_evtchn(dev, &evtchn);
if (ret)
goto error_grant;
ret = bind_evtchn_to_irqhandler(evtchn, input_handler,
0, dev->devicetype, info);
if (ret < 0) {
xenbus_dev_fatal(dev, ret, "bind_evtchn_to_irqhandler");
goto error_evtchan;
}
info->irq = ret;
again:
ret = xenbus_transaction_start(&xbt);
if (ret) {
xenbus_dev_fatal(dev, ret, "starting transaction");
goto error_irqh;
}
ret = xenbus_printf(xbt, dev->nodename, "page-ref", "%lu",
virt_to_mfn(info->page));
if (ret)
goto error_xenbus;
ret = xenbus_printf(xbt, dev->nodename, "page-gref", "%u", info->gref);
if (ret)
goto error_xenbus;
ret = xenbus_printf(xbt, dev->nodename, "event-channel", "%u",
evtchn);
if (ret)
goto error_xenbus;
ret = xenbus_transaction_end(xbt, 0);
if (ret) {
if (ret == -EAGAIN)
goto again;
xenbus_dev_fatal(dev, ret, "completing transaction");
goto error_irqh;
}
xenbus_switch_state(dev, XenbusStateInitialised);
return 0;
error_xenbus:
xenbus_transaction_end(xbt, 1);
xenbus_dev_fatal(dev, ret, "writing xenstore");
error_irqh:
unbind_from_irqhandler(info->irq, info);
info->irq = -1;
error_evtchan:
xenbus_free_evtchn(dev, evtchn);
error_grant:
gnttab_end_foreign_access_ref(info->gref, 0);
info->gref = -1;
return ret;
}
static void xenkbd_disconnect_backend(struct xenkbd_info *info)
{
if (info->irq >= 0)
unbind_from_irqhandler(info->irq, info);
info->irq = -1;
if (info->gref >= 0)
gnttab_end_foreign_access_ref(info->gref, 0);
info->gref = -1;
}
static void xenkbd_backend_changed(struct xenbus_device *dev,
enum xenbus_state backend_state)
{
struct xenkbd_info *info = dev_get_drvdata(&dev->dev);
int ret, val;
switch (backend_state) {
case XenbusStateInitialising:
case XenbusStateInitialised:
case XenbusStateReconfiguring:
case XenbusStateReconfigured:
case XenbusStateUnknown:
break;
case XenbusStateInitWait:
InitWait:
ret = xenbus_scanf(XBT_NIL, info->xbdev->otherend,
"feature-abs-pointer", "%d", &val);
if (ret < 0)
val = 0;
if (val) {
ret = xenbus_printf(XBT_NIL, info->xbdev->nodename,
"request-abs-pointer", "1");
if (ret)
pr_warning("xenkbd: can't request abs-pointer");
}
xenbus_switch_state(dev, XenbusStateConnected);
break;
case XenbusStateConnected:
/*
* Work around xenbus race condition: If backend goes
* through InitWait to Connected fast enough, we can
* get Connected twice here.
*/
if (dev->state != XenbusStateConnected)
goto InitWait; /* no InitWait seen yet, fudge it */
/* Set input abs params to match backend screen res */
if (xenbus_scanf(XBT_NIL, info->xbdev->otherend,
"width", "%d", &val) > 0)
input_set_abs_params(info->ptr, ABS_X, 0, val, 0, 0);
if (xenbus_scanf(XBT_NIL, info->xbdev->otherend,
"height", "%d", &val) > 0)
input_set_abs_params(info->ptr, ABS_Y, 0, val, 0, 0);
break;
case XenbusStateClosed:
if (dev->state == XenbusStateClosed)
break;
/* Missed the backend's CLOSING state -- fallthrough */
case XenbusStateClosing:
xenbus_frontend_closed(dev);
break;
}
}
static const struct xenbus_device_id xenkbd_ids[] = {
{ "vkbd" },
{ "" }
};
static DEFINE_XENBUS_DRIVER(xenkbd, ,
.probe = xenkbd_probe,
.remove = xenkbd_remove,
.resume = xenkbd_resume,
.otherend_changed = xenkbd_backend_changed,
);
static int __init xenkbd_init(void)
{
if (!xen_domain())
return -ENODEV;
/* Nothing to do if running in dom0. */
if (xen_initial_domain())
return -ENODEV;
return xenbus_register_frontend(&xenkbd_driver);
}
static void __exit xenkbd_cleanup(void)
{
xenbus_unregister_driver(&xenkbd_driver);
}
module_init(xenkbd_init);
module_exit(xenkbd_cleanup);
MODULE_DESCRIPTION("Xen virtual keyboard/pointer device frontend");
MODULE_LICENSE("GPL");
MODULE_ALIAS("xen:vkbd");

1008
drivers/input/misc/yealink.c Normal file
View File

File diff suppressed because it is too large Load Diff

220
drivers/input/misc/yealink.h Normal file
View File

@@ -0,0 +1,220 @@
/*
* drivers/usb/input/yealink.h
*
* Copyright (c) 2005 Henk Vergonet <Henk.Vergonet@gmail.com>
*
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License as
* published by the Free Software Foundation; either version 2 of
* the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#ifndef INPUT_YEALINK_H
#define INPUT_YEALINK_H
/* Using the control channel on interface 3 various aspects of the phone
* can be controlled like LCD, LED, dialtone and the ringtone.
*/
struct yld_ctl_packet {
u8 cmd; /* command code, see below */
u8 size; /* 1-11, size of used data bytes. */
u16 offset; /* internal packet offset */
u8 data[11];
s8 sum; /* negative sum of 15 preceding bytes */
} __attribute__ ((packed));
#define USB_PKT_LEN sizeof(struct yld_ctl_packet)
/* The following yld_ctl_packet's are available: */
/* Init registers
*
* cmd 0x8e
* size 10
* offset 0
* data 0,0,0,0....
*/
#define CMD_INIT 0x8e
/* Request key scan
*
* cmd 0x80
* size 1
* offset 0
* data[0] on return returns the key number, if it changes there's a new
* key pressed.
*/
#define CMD_KEYPRESS 0x80
/* Request scancode
*
* cmd 0x81
* size 1
* offset key number [0-1f]
* data[0] on return returns the scancode
*/
#define CMD_SCANCODE 0x81
/* Set LCD
*
* cmd 0x04
* size 1-11
* offset 0-23
* data segment bits
*/
#define CMD_LCD 0x04
/* Set led
*
* cmd 0x05
* size 1
* offset 0
* data[0] 0 OFF / 1 ON
*/
#define CMD_LED 0x05
/* Set ringtone volume
*
* cmd 0x11
* size 1
* offset 0
* data[0] 0-0xff volume
*/
#define CMD_RING_VOLUME 0x11
/* Set ringtone notes
*
* cmd 0x02
* size 1-11
* offset 0->
* data binary representation LE16(-freq), LE16(duration) ....
*/
#define CMD_RING_NOTE 0x02
/* Sound ringtone via the speaker on the back
*
* cmd 0x03
* size 1
* offset 0
* data[0] 0 OFF / 0x24 ON
*/
#define CMD_RINGTONE 0x03
/* Sound dial tone via the ear speaker
*
* cmd 0x09
* size 1
* offset 0
* data[0] 0 OFF / 1 ON
*/
#define CMD_DIALTONE 0x09
#endif /* INPUT_YEALINK_H */
#if defined(_SEG) && defined(_PIC)
/* This table maps the LCD segments onto individual bit positions in the
* yld_status struct.
*/
/* LCD, each segment must be driven separately.
*
* Layout:
*
* |[] [][] [][] [][] in |[][]
* |[] M [][] D [][] : [][] out |[][]
* store
*
* NEW REP SU MO TU WE TH FR SA
*
* [] [] [] [] [] [] [] [] [] [] [] []
* [] [] [] [] [] [] [] [] [] [] [] []
*/
/* Line 1
* Format : 18.e8.M8.88...188
* Icon names : M D : IN OUT STORE
*/
#define LCD_LINE1_OFFSET 0
#define LCD_LINE1_SIZE 17
/* Note: first g then f => ! ! */
/* _SEG( type a b c d e g f ) */
_SEG('1', 0,0 , 22,2 , 22,2 , 0,0 , 0,0 , 0,0 , 0,0 ),
_SEG('8', 20,1 , 20,2 , 20,4 , 20,8 , 21,4 , 21,2 , 21,1 ),
_PIC('.', 22,1 , "M" ),
_SEG('e', 18,1 , 18,2 , 18,4 , 18,1 , 19,2 , 18,1 , 19,1 ),
_SEG('8', 16,1 , 16,2 , 16,4 , 16,8 , 17,4 , 17,2 , 17,1 ),
_PIC('.', 15,8 , "D" ),
_SEG('M', 14,1 , 14,2 , 14,4 , 14,1 , 15,4 , 15,2 , 15,1 ),
_SEG('8', 12,1 , 12,2 , 12,4 , 12,8 , 13,4 , 13,2 , 13,1 ),
_PIC('.', 11,8 , ":" ),
_SEG('8', 10,1 , 10,2 , 10,4 , 10,8 , 11,4 , 11,2 , 11,1 ),
_SEG('8', 8,1 , 8,2 , 8,4 , 8,8 , 9,4 , 9,2 , 9,1 ),
_PIC('.', 7,1 , "IN" ),
_PIC('.', 7,2 , "OUT" ),
_PIC('.', 7,4 , "STORE" ),
_SEG('1', 0,0 , 5,1 , 5,1 , 0,0 , 0,0 , 0,0 , 0,0 ),
_SEG('8', 4,1 , 4,2 , 4,4 , 4,8 , 5,8 , 5,4 , 5,2 ),
_SEG('8', 2,1 , 2,2 , 2,4 , 2,8 , 3,4 , 3,2 , 3,1 ),
/* Line 2
* Format : .........
* Pict. name : NEW REP SU MO TU WE TH FR SA
*/
#define LCD_LINE2_OFFSET LCD_LINE1_OFFSET + LCD_LINE1_SIZE
#define LCD_LINE2_SIZE 9
_PIC('.', 23,2 , "NEW" ),
_PIC('.', 23,4 , "REP" ),
_PIC('.', 1,8 , "SU" ),
_PIC('.', 1,4 , "MO" ),
_PIC('.', 1,2 , "TU" ),
_PIC('.', 1,1 , "WE" ),
_PIC('.', 0,1 , "TH" ),
_PIC('.', 0,2 , "FR" ),
_PIC('.', 0,4 , "SA" ),
/* Line 3
* Format : 888888888888
*/
#define LCD_LINE3_OFFSET LCD_LINE2_OFFSET + LCD_LINE2_SIZE
#define LCD_LINE3_SIZE 12
_SEG('8', 22,16, 22,32, 22,64, 22,128, 23,128, 23,64, 23,32 ),
_SEG('8', 20,16, 20,32, 20,64, 20,128, 21,128, 21,64, 21,32 ),
_SEG('8', 18,16, 18,32, 18,64, 18,128, 19,128, 19,64, 19,32 ),
_SEG('8', 16,16, 16,32, 16,64, 16,128, 17,128, 17,64, 17,32 ),
_SEG('8', 14,16, 14,32, 14,64, 14,128, 15,128, 15,64, 15,32 ),
_SEG('8', 12,16, 12,32, 12,64, 12,128, 13,128, 13,64, 13,32 ),
_SEG('8', 10,16, 10,32, 10,64, 10,128, 11,128, 11,64, 11,32 ),
_SEG('8', 8,16, 8,32, 8,64, 8,128, 9,128, 9,64, 9,32 ),
_SEG('8', 6,16, 6,32, 6,64, 6,128, 7,128, 7,64, 7,32 ),
_SEG('8', 4,16, 4,32, 4,64, 4,128, 5,128, 5,64, 5,32 ),
_SEG('8', 2,16, 2,32, 2,64, 2,128, 3,128, 3,64, 3,32 ),
_SEG('8', 0,16, 0,32, 0,64, 0,128, 1,128, 1,64, 1,32 ),
/* Line 4
*
* The LED, DIALTONE and RINGTONE are implemented as icons and use the same
* sysfs interface.
*/
#define LCD_LINE4_OFFSET LCD_LINE3_OFFSET + LCD_LINE3_SIZE
_PIC('.', offsetof(struct yld_status, led) , 0x01, "LED" ),
_PIC('.', offsetof(struct yld_status, dialtone) , 0x01, "DIALTONE" ),
_PIC('.', offsetof(struct yld_status, ringtone) , 0x24, "RINGTONE" ),
#undef _SEG
#undef _PIC
#endif /* _SEG && _PIC */