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Initial commit; kernel source import

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Nathan
2025-04-06 23:50:55 -05:00
commit 25c6d769f4
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61
drivers/media/pci/ivtv/Kconfig Normal file
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config VIDEO_IVTV
tristate "Conexant cx23416/cx23415 MPEG encoder/decoder support"
depends on VIDEO_V4L2 && PCI && I2C
select I2C_ALGOBIT
depends on RC_CORE
select VIDEO_TUNER
select VIDEO_TVEEPROM
select VIDEO_CX2341X
select VIDEO_CX25840
select VIDEO_MSP3400
select VIDEO_SAA711X
select VIDEO_SAA717X
select VIDEO_SAA7127
select VIDEO_CS53L32A
select VIDEO_M52790
select VIDEO_WM8775
select VIDEO_WM8739
select VIDEO_VP27SMPX
select VIDEO_UPD64031A
select VIDEO_UPD64083
---help---
This is a video4linux driver for Conexant cx23416 or cx23415 based
PCI personal video recorder devices.
This is used in devices such as the Hauppauge PVR-150/250/350/500
cards. There is a driver homepage at <http://www.ivtvdriver.org>.
To compile this driver as a module, choose M here: the
module will be called ivtv.
config VIDEO_IVTV_ALSA
tristate "Conexant cx23415/cx23416 ALSA interface for PCM audio capture"
depends on VIDEO_IVTV && SND
select SND_PCM
---help---
This driver provides an ALSA interface as another method for user
applications to obtain PCM audio data from Conexant cx23415/cx23416
based PCI TV cards supported by the ivtv driver.
The ALSA interface has much wider use in user applications performing
PCM audio capture, than the V4L2 "/dev/video24" PCM audio interface
provided by the main ivtv driver.
To compile this driver as a module, choose M here: the
module will be called ivtv-alsa.
config VIDEO_FB_IVTV
tristate "Conexant cx23415 framebuffer support"
depends on VIDEO_IVTV && FB
select FB_CFB_FILLRECT
select FB_CFB_COPYAREA
select FB_CFB_IMAGEBLIT
---help---
This is a framebuffer driver for the Conexant cx23415 MPEG
encoder/decoder.
This is used in the Hauppauge PVR-350 card. There is a driver
homepage at <http://www.ivtvdriver.org>.
To compile this driver as a module, choose M here: the
module will be called ivtvfb.

16
drivers/media/pci/ivtv/Makefile Normal file
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ivtv-objs := ivtv-routing.o ivtv-cards.o ivtv-controls.o \
ivtv-driver.o ivtv-fileops.o ivtv-firmware.o \
ivtv-gpio.o ivtv-i2c.o ivtv-ioctl.o ivtv-irq.o \
ivtv-mailbox.o ivtv-queue.o ivtv-streams.o ivtv-udma.o \
ivtv-vbi.o ivtv-yuv.o
ivtv-alsa-objs := ivtv-alsa-main.o ivtv-alsa-pcm.o
obj-$(CONFIG_VIDEO_IVTV) += ivtv.o
obj-$(CONFIG_VIDEO_IVTV_ALSA) += ivtv-alsa.o
obj-$(CONFIG_VIDEO_FB_IVTV) += ivtvfb.o
ccflags-y += -I$(srctree)/drivers/media/i2c
ccflags-y += -I$(srctree)/drivers/media/tuners
ccflags-y += -I$(srctree)/drivers/media/dvb-core
ccflags-y += -I$(srctree)/drivers/media/dvb-frontends

303
drivers/media/pci/ivtv/ivtv-alsa-main.c Normal file
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/*
* ALSA interface to ivtv PCM capture streams
*
* Copyright (C) 2009,2012 Andy Walls <awalls@md.metrocast.net>
* Copyright (C) 2009 Devin Heitmueller <dheitmueller@kernellabs.com>
*
* Portions of this work were sponsored by ONELAN Limited for the cx18 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.
*
* 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/init.h>
#include <linux/slab.h>
#include <linux/module.h>
#include <linux/kernel.h>
#include <linux/device.h>
#include <linux/spinlock.h>
#include <media/v4l2-device.h>
#include <sound/core.h>
#include <sound/initval.h>
#include "ivtv-driver.h"
#include "ivtv-version.h"
#include "ivtv-alsa.h"
#include "ivtv-alsa-mixer.h"
#include "ivtv-alsa-pcm.h"
int ivtv_alsa_debug;
#define IVTV_DEBUG_ALSA_INFO(fmt, arg...) \
do { \
if (ivtv_alsa_debug & 2) \
pr_info("%s: " fmt, "ivtv-alsa", ## arg); \
} while (0)
module_param_named(debug, ivtv_alsa_debug, int, 0644);
MODULE_PARM_DESC(debug,
"Debug level (bitmask). Default: 0\n"
"\t\t\t 1/0x0001: warning\n"
"\t\t\t 2/0x0002: info\n");
MODULE_AUTHOR("Andy Walls");
MODULE_DESCRIPTION("CX23415/CX23416 ALSA Interface");
MODULE_SUPPORTED_DEVICE("CX23415/CX23416 MPEG2 encoder");
MODULE_LICENSE("GPL");
MODULE_VERSION(IVTV_VERSION);
static inline
struct snd_ivtv_card *to_snd_ivtv_card(struct v4l2_device *v4l2_dev)
{
return to_ivtv(v4l2_dev)->alsa;
}
static inline
struct snd_ivtv_card *p_to_snd_ivtv_card(struct v4l2_device **v4l2_dev)
{
return container_of(v4l2_dev, struct snd_ivtv_card, v4l2_dev);
}
static void snd_ivtv_card_free(struct snd_ivtv_card *itvsc)
{
if (itvsc == NULL)
return;
if (itvsc->v4l2_dev != NULL)
to_ivtv(itvsc->v4l2_dev)->alsa = NULL;
/* FIXME - take any other stopping actions needed */
kfree(itvsc);
}
static void snd_ivtv_card_private_free(struct snd_card *sc)
{
if (sc == NULL)
return;
snd_ivtv_card_free(sc->private_data);
sc->private_data = NULL;
sc->private_free = NULL;
}
static int snd_ivtv_card_create(struct v4l2_device *v4l2_dev,
struct snd_card *sc,
struct snd_ivtv_card **itvsc)
{
*itvsc = kzalloc(sizeof(struct snd_ivtv_card), GFP_KERNEL);
if (*itvsc == NULL)
return -ENOMEM;
(*itvsc)->v4l2_dev = v4l2_dev;
(*itvsc)->sc = sc;
sc->private_data = *itvsc;
sc->private_free = snd_ivtv_card_private_free;
return 0;
}
static int snd_ivtv_card_set_names(struct snd_ivtv_card *itvsc)
{
struct ivtv *itv = to_ivtv(itvsc->v4l2_dev);
struct snd_card *sc = itvsc->sc;
/* sc->driver is used by alsa-lib's configurator: simple, unique */
strlcpy(sc->driver, "CX2341[56]", sizeof(sc->driver));
/* sc->shortname is a symlink in /proc/asound: IVTV-M -> cardN */
snprintf(sc->shortname, sizeof(sc->shortname), "IVTV-%d",
itv->instance);
/* sc->longname is read from /proc/asound/cards */
snprintf(sc->longname, sizeof(sc->longname),
"CX2341[56] #%d %s TV/FM Radio/Line-In Capture",
itv->instance, itv->card_name);
return 0;
}
static int snd_ivtv_init(struct v4l2_device *v4l2_dev)
{
struct ivtv *itv = to_ivtv(v4l2_dev);
struct snd_card *sc = NULL;
struct snd_ivtv_card *itvsc;
int ret;
/* Numbrs steps from "Writing an ALSA Driver" by Takashi Iwai */
/* (1) Check and increment the device index */
/* This is a no-op for us. We'll use the itv->instance */
/* (2) Create a card instance */
ret = snd_card_create(SNDRV_DEFAULT_IDX1, /* use first available id */
SNDRV_DEFAULT_STR1, /* xid from end of shortname*/
THIS_MODULE, 0, &sc);
if (ret) {
IVTV_ALSA_ERR("%s: snd_card_create() failed with err %d\n",
__func__, ret);
goto err_exit;
}
/* (3) Create a main component */
ret = snd_ivtv_card_create(v4l2_dev, sc, &itvsc);
if (ret) {
IVTV_ALSA_ERR("%s: snd_ivtv_card_create() failed with err %d\n",
__func__, ret);
goto err_exit_free;
}
/* (4) Set the driver ID and name strings */
snd_ivtv_card_set_names(itvsc);
/* (5) Create other components: mixer, PCM, & proc files */
#if 0
ret = snd_ivtv_mixer_create(itvsc);
if (ret) {
IVTV_ALSA_WARN("%s: snd_ivtv_mixer_create() failed with err %d:"
" proceeding anyway\n", __func__, ret);
}
#endif
ret = snd_ivtv_pcm_create(itvsc);
if (ret) {
IVTV_ALSA_ERR("%s: snd_ivtv_pcm_create() failed with err %d\n",
__func__, ret);
goto err_exit_free;
}
/* FIXME - proc files */
/* (7) Set the driver data and return 0 */
/* We do this out of normal order for PCI drivers to avoid races */
itv->alsa = itvsc;
/* (6) Register the card instance */
ret = snd_card_register(sc);
if (ret) {
itv->alsa = NULL;
IVTV_ALSA_ERR("%s: snd_card_register() failed with err %d\n",
__func__, ret);
goto err_exit_free;
}
return 0;
err_exit_free:
if (sc != NULL)
snd_card_free(sc);
kfree(itvsc);
err_exit:
return ret;
}
static int ivtv_alsa_load(struct ivtv *itv)
{
struct v4l2_device *v4l2_dev = &itv->v4l2_dev;
struct ivtv_stream *s;
if (v4l2_dev == NULL) {
pr_err("ivtv-alsa: %s: struct v4l2_device * is NULL\n",
__func__);
return 0;
}
itv = to_ivtv(v4l2_dev);
if (itv == NULL) {
pr_err("ivtv-alsa itv is NULL\n");
return 0;
}
s = &itv->streams[IVTV_ENC_STREAM_TYPE_PCM];
if (s->vdev == NULL) {
IVTV_DEBUG_ALSA_INFO("%s: PCM stream for card is disabled - "
"skipping\n", __func__);
return 0;
}
if (itv->alsa != NULL) {
IVTV_ALSA_ERR("%s: struct snd_ivtv_card * already exists\n",
__func__);
return 0;
}
if (snd_ivtv_init(v4l2_dev)) {
IVTV_ALSA_ERR("%s: failed to create struct snd_ivtv_card\n",
__func__);
} else {
IVTV_DEBUG_ALSA_INFO("%s: created ivtv ALSA interface instance "
"\n", __func__);
}
return 0;
}
static int __init ivtv_alsa_init(void)
{
pr_info("ivtv-alsa: module loading...\n");
ivtv_ext_init = &ivtv_alsa_load;
return 0;
}
static void __exit snd_ivtv_exit(struct snd_ivtv_card *itvsc)
{
struct ivtv *itv = to_ivtv(itvsc->v4l2_dev);
/* FIXME - pointer checks & shutdown itvsc */
snd_card_free(itvsc->sc);
itv->alsa = NULL;
}
static int __exit ivtv_alsa_exit_callback(struct device *dev, void *data)
{
struct v4l2_device *v4l2_dev = dev_get_drvdata(dev);
struct snd_ivtv_card *itvsc;
if (v4l2_dev == NULL) {
pr_err("ivtv-alsa: %s: struct v4l2_device * is NULL\n",
__func__);
return 0;
}
itvsc = to_snd_ivtv_card(v4l2_dev);
if (itvsc == NULL) {
IVTV_ALSA_WARN("%s: struct snd_ivtv_card * is NULL\n",
__func__);
return 0;
}
snd_ivtv_exit(itvsc);
return 0;
}
static void __exit ivtv_alsa_exit(void)
{
struct device_driver *drv;
int ret;
pr_info("ivtv-alsa: module unloading...\n");
drv = driver_find("ivtv", &pci_bus_type);
ret = driver_for_each_device(drv, NULL, NULL, ivtv_alsa_exit_callback);
(void)ret; /* suppress compiler warning */
ivtv_ext_init = NULL;
pr_info("ivtv-alsa: module unload complete\n");
}
module_init(ivtv_alsa_init);
module_exit(ivtv_alsa_exit);

175
drivers/media/pci/ivtv/ivtv-alsa-mixer.c Normal file
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@@ -0,0 +1,175 @@
/*
* ALSA mixer controls for the
* ALSA interface to ivtv PCM capture streams
*
* Copyright (C) 2009,2012 Andy Walls <awalls@md.metrocast.net>
*
* 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/init.h>
#include <linux/kernel.h>
#include <linux/device.h>
#include <linux/spinlock.h>
#include <linux/videodev2.h>
#include <media/v4l2-device.h>
#include <sound/core.h>
#include <sound/control.h>
#include <sound/tlv.h>
#include "ivtv-alsa.h"
#include "ivtv-driver.h"
/*
* Note the cx25840-core volume scale is funny, due to the alignment of the
* scale with another chip's range:
*
* v4l2_control value /512 indicated dB actual dB reg 0x8d4
* 0x0000 - 0x01ff 0 -119 -96 228
* 0x0200 - 0x02ff 1 -118 -96 228
* ...
* 0x2c00 - 0x2dff 22 -97 -96 228
* 0x2e00 - 0x2fff 23 -96 -96 228
* 0x3000 - 0x31ff 24 -95 -95 226
* ...
* 0xee00 - 0xefff 119 0 0 36
* ...
* 0xfe00 - 0xffff 127 +8 +8 20
*/
static inline int dB_to_cx25840_vol(int dB)
{
if (dB < -96)
dB = -96;
else if (dB > 8)
dB = 8;
return (dB + 119) << 9;
}
static inline int cx25840_vol_to_dB(int v)
{
if (v < (23 << 9))
v = (23 << 9);
else if (v > (127 << 9))
v = (127 << 9);
return (v >> 9) - 119;
}
static int snd_ivtv_mixer_tv_vol_info(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_info *uinfo)
{
uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
uinfo->count = 1;
/* We're already translating values, just keep this control in dB */
uinfo->value.integer.min = -96;
uinfo->value.integer.max = 8;
uinfo->value.integer.step = 1;
return 0;
}
static int snd_ivtv_mixer_tv_vol_get(struct snd_kcontrol *kctl,
struct snd_ctl_elem_value *uctl)
{
struct snd_ivtv_card *itvsc = snd_kcontrol_chip(kctl);
struct ivtv *itv = to_ivtv(itvsc->v4l2_dev);
struct v4l2_control vctrl;
int ret;
vctrl.id = V4L2_CID_AUDIO_VOLUME;
vctrl.value = dB_to_cx25840_vol(uctl->value.integer.value[0]);
snd_ivtv_lock(itvsc);
ret = v4l2_subdev_call(itv->sd_audio, core, g_ctrl, &vctrl);
snd_ivtv_unlock(itvsc);
if (!ret)
uctl->value.integer.value[0] = cx25840_vol_to_dB(vctrl.value);
return ret;
}
static int snd_ivtv_mixer_tv_vol_put(struct snd_kcontrol *kctl,
struct snd_ctl_elem_value *uctl)
{
struct snd_ivtv_card *itvsc = snd_kcontrol_chip(kctl);
struct ivtv *itv = to_ivtv(itvsc->v4l2_dev);
struct v4l2_control vctrl;
int ret;
vctrl.id = V4L2_CID_AUDIO_VOLUME;
vctrl.value = dB_to_cx25840_vol(uctl->value.integer.value[0]);
snd_ivtv_lock(itvsc);
/* Fetch current state */
ret = v4l2_subdev_call(itv->sd_audio, core, g_ctrl, &vctrl);
if (ret ||
(cx25840_vol_to_dB(vctrl.value) != uctl->value.integer.value[0])) {
/* Set, if needed */
vctrl.value = dB_to_cx25840_vol(uctl->value.integer.value[0]);
ret = v4l2_subdev_call(itv->sd_audio, core, s_ctrl, &vctrl);
if (!ret)
ret = 1; /* Indicate control was changed w/o error */
}
snd_ivtv_unlock(itvsc);
return ret;
}
/* This is a bit of overkill, the slider is already in dB internally */
static DECLARE_TLV_DB_SCALE(snd_ivtv_mixer_tv_vol_db_scale, -9600, 100, 0);
static struct snd_kcontrol_new snd_ivtv_mixer_tv_vol __initdata = {
.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
.name = "Analog TV Capture Volume",
.access = SNDRV_CTL_ELEM_ACCESS_READWRITE |
SNDRV_CTL_ELEM_ACCESS_TLV_READ,
.info = snd_ivtv_mixer_tv_volume_info,
.get = snd_ivtv_mixer_tv_volume_get,
.put = snd_ivtv_mixer_tv_volume_put,
.tlv.p = snd_ivtv_mixer_tv_vol_db_scale
};
/* FIXME - add mute switch and balance, bass, treble sliders:
V4L2_CID_AUDIO_MUTE
V4L2_CID_AUDIO_BALANCE
V4L2_CID_AUDIO_BASS
V4L2_CID_AUDIO_TREBLE
*/
/* FIXME - add stereo, lang1, lang2, mono menu */
/* FIXME - add I2S volume */
int __init snd_ivtv_mixer_create(struct snd_ivtv_card *itvsc)
{
struct v4l2_device *v4l2_dev = itvsc->v4l2_dev;
struct snd_card *sc = itvsc->sc;
int ret;
strlcpy(sc->mixername, "CX2341[56] Mixer", sizeof(sc->mixername));
ret = snd_ctl_add(sc, snd_ctl_new1(snd_ivtv_mixer_tv_vol, itvsc));
if (ret) {
IVTV_ALSA_WARN("%s: failed to add %s control, err %d\n",
__func__, snd_ivtv_mixer_tv_vol.name, ret);
}
return ret;
}

23
drivers/media/pci/ivtv/ivtv-alsa-mixer.h Normal file
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@@ -0,0 +1,23 @@
/*
* ALSA mixer controls for the
* ALSA interface to ivtv PCM capture streams
*
* Copyright (C) 2009,2012 Andy Walls <awalls@md.metrocast.net>
*
* 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
*/
int __init snd_ivtv_mixer_create(struct snd_ivtv_card *itvsc);

358
drivers/media/pci/ivtv/ivtv-alsa-pcm.c Normal file
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@@ -0,0 +1,358 @@
/*
* ALSA PCM device for the
* ALSA interface to ivtv PCM capture streams
*
* Copyright (C) 2009,2012 Andy Walls <awalls@md.metrocast.net>
* Copyright (C) 2009 Devin Heitmueller <dheitmueller@kernellabs.com>
*
* Portions of this work were sponsored by ONELAN Limited for the cx18 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.
*
* 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/init.h>
#include <linux/kernel.h>
#include <linux/vmalloc.h>
#include <media/v4l2-device.h>
#include <sound/core.h>
#include <sound/pcm.h>
#include "ivtv-driver.h"
#include "ivtv-queue.h"
#include "ivtv-streams.h"
#include "ivtv-fileops.h"
#include "ivtv-alsa.h"
#include "ivtv-alsa-pcm.h"
static unsigned int pcm_debug;
module_param(pcm_debug, int, 0644);
MODULE_PARM_DESC(pcm_debug, "enable debug messages for pcm");
#define dprintk(fmt, arg...) \
do { \
if (pcm_debug) \
pr_info("ivtv-alsa-pcm %s: " fmt, __func__, ##arg); \
} while (0)
static struct snd_pcm_hardware snd_ivtv_hw_capture = {
.info = SNDRV_PCM_INFO_BLOCK_TRANSFER |
SNDRV_PCM_INFO_MMAP |
SNDRV_PCM_INFO_INTERLEAVED |
SNDRV_PCM_INFO_MMAP_VALID,
.formats = SNDRV_PCM_FMTBIT_S16_LE,
.rates = SNDRV_PCM_RATE_48000,
.rate_min = 48000,
.rate_max = 48000,
.channels_min = 2,
.channels_max = 2,
.buffer_bytes_max = 62720 * 8, /* just about the value in usbaudio.c */
.period_bytes_min = 64, /* 12544/2, */
.period_bytes_max = 12544,
.periods_min = 2,
.periods_max = 98, /* 12544, */
};
static void ivtv_alsa_announce_pcm_data(struct snd_ivtv_card *itvsc,
u8 *pcm_data,
size_t num_bytes)
{
struct snd_pcm_substream *substream;
struct snd_pcm_runtime *runtime;
unsigned int oldptr;
unsigned int stride;
int period_elapsed = 0;
int length;
dprintk("ivtv alsa announce ptr=%p data=%p num_bytes=%zd\n", itvsc,
pcm_data, num_bytes);
substream = itvsc->capture_pcm_substream;
if (substream == NULL) {
dprintk("substream was NULL\n");
return;
}
runtime = substream->runtime;
if (runtime == NULL) {
dprintk("runtime was NULL\n");
return;
}
stride = runtime->frame_bits >> 3;
if (stride == 0) {
dprintk("stride is zero\n");
return;
}
length = num_bytes / stride;
if (length == 0) {
dprintk("%s: length was zero\n", __func__);
return;
}
if (runtime->dma_area == NULL) {
dprintk("dma area was NULL - ignoring\n");
return;
}
oldptr = itvsc->hwptr_done_capture;
if (oldptr + length >= runtime->buffer_size) {
unsigned int cnt =
runtime->buffer_size - oldptr;
memcpy(runtime->dma_area + oldptr * stride, pcm_data,
cnt * stride);
memcpy(runtime->dma_area, pcm_data + cnt * stride,
length * stride - cnt * stride);
} else {
memcpy(runtime->dma_area + oldptr * stride, pcm_data,
length * stride);
}
snd_pcm_stream_lock(substream);
itvsc->hwptr_done_capture += length;
if (itvsc->hwptr_done_capture >=
runtime->buffer_size)
itvsc->hwptr_done_capture -=
runtime->buffer_size;
itvsc->capture_transfer_done += length;
if (itvsc->capture_transfer_done >=
runtime->period_size) {
itvsc->capture_transfer_done -=
runtime->period_size;
period_elapsed = 1;
}
snd_pcm_stream_unlock(substream);
if (period_elapsed)
snd_pcm_period_elapsed(substream);
}
static int snd_ivtv_pcm_capture_open(struct snd_pcm_substream *substream)
{
struct snd_ivtv_card *itvsc = snd_pcm_substream_chip(substream);
struct snd_pcm_runtime *runtime = substream->runtime;
struct v4l2_device *v4l2_dev = itvsc->v4l2_dev;
struct ivtv *itv = to_ivtv(v4l2_dev);
struct ivtv_stream *s;
struct ivtv_open_id item;
int ret;
/* Instruct the CX2341[56] to start sending packets */
snd_ivtv_lock(itvsc);
s = &itv->streams[IVTV_ENC_STREAM_TYPE_PCM];
v4l2_fh_init(&item.fh, s->vdev);
item.itv = itv;
item.type = s->type;
/* See if the stream is available */
if (ivtv_claim_stream(&item, item.type)) {
/* No, it's already in use */
snd_ivtv_unlock(itvsc);
return -EBUSY;
}
if (test_bit(IVTV_F_S_STREAMOFF, &s->s_flags) ||
test_and_set_bit(IVTV_F_S_STREAMING, &s->s_flags)) {
/* We're already streaming. No additional action required */
snd_ivtv_unlock(itvsc);
return 0;
}
runtime->hw = snd_ivtv_hw_capture;
snd_pcm_hw_constraint_integer(runtime, SNDRV_PCM_HW_PARAM_PERIODS);
itvsc->capture_pcm_substream = substream;
runtime->private_data = itv;
itv->pcm_announce_callback = ivtv_alsa_announce_pcm_data;
/* Not currently streaming, so start it up */
set_bit(IVTV_F_S_STREAMING, &s->s_flags);
ret = ivtv_start_v4l2_encode_stream(s);
snd_ivtv_unlock(itvsc);
return ret;
}
static int snd_ivtv_pcm_capture_close(struct snd_pcm_substream *substream)
{
struct snd_ivtv_card *itvsc = snd_pcm_substream_chip(substream);
struct v4l2_device *v4l2_dev = itvsc->v4l2_dev;
struct ivtv *itv = to_ivtv(v4l2_dev);
struct ivtv_stream *s;
/* Instruct the ivtv to stop sending packets */
snd_ivtv_lock(itvsc);
s = &itv->streams[IVTV_ENC_STREAM_TYPE_PCM];
ivtv_stop_v4l2_encode_stream(s, 0);
clear_bit(IVTV_F_S_STREAMING, &s->s_flags);
ivtv_release_stream(s);
itv->pcm_announce_callback = NULL;
snd_ivtv_unlock(itvsc);
return 0;
}
static int snd_ivtv_pcm_ioctl(struct snd_pcm_substream *substream,
unsigned int cmd, void *arg)
{
struct snd_ivtv_card *itvsc = snd_pcm_substream_chip(substream);
int ret;
snd_ivtv_lock(itvsc);
ret = snd_pcm_lib_ioctl(substream, cmd, arg);
snd_ivtv_unlock(itvsc);
return ret;
}
static int snd_pcm_alloc_vmalloc_buffer(struct snd_pcm_substream *subs,
size_t size)
{
struct snd_pcm_runtime *runtime = subs->runtime;
dprintk("Allocating vbuffer\n");
if (runtime->dma_area) {
if (runtime->dma_bytes > size)
return 0;
vfree(runtime->dma_area);
}
runtime->dma_area = vmalloc(size);
if (!runtime->dma_area)
return -ENOMEM;
runtime->dma_bytes = size;
return 0;
}
static int snd_ivtv_pcm_hw_params(struct snd_pcm_substream *substream,
struct snd_pcm_hw_params *params)
{
dprintk("%s called\n", __func__);
return snd_pcm_alloc_vmalloc_buffer(substream,
params_buffer_bytes(params));
}
static int snd_ivtv_pcm_hw_free(struct snd_pcm_substream *substream)
{
struct snd_ivtv_card *itvsc = snd_pcm_substream_chip(substream);
unsigned long flags;
spin_lock_irqsave(&itvsc->slock, flags);
if (substream->runtime->dma_area) {
dprintk("freeing pcm capture region\n");
vfree(substream->runtime->dma_area);
substream->runtime->dma_area = NULL;
}
spin_unlock_irqrestore(&itvsc->slock, flags);
return 0;
}
static int snd_ivtv_pcm_prepare(struct snd_pcm_substream *substream)
{
struct snd_ivtv_card *itvsc = snd_pcm_substream_chip(substream);
itvsc->hwptr_done_capture = 0;
itvsc->capture_transfer_done = 0;
return 0;
}
static int snd_ivtv_pcm_trigger(struct snd_pcm_substream *substream, int cmd)
{
return 0;
}
static
snd_pcm_uframes_t snd_ivtv_pcm_pointer(struct snd_pcm_substream *substream)
{
unsigned long flags;
snd_pcm_uframes_t hwptr_done;
struct snd_ivtv_card *itvsc = snd_pcm_substream_chip(substream);
spin_lock_irqsave(&itvsc->slock, flags);
hwptr_done = itvsc->hwptr_done_capture;
spin_unlock_irqrestore(&itvsc->slock, flags);
return hwptr_done;
}
static struct page *snd_pcm_get_vmalloc_page(struct snd_pcm_substream *subs,
unsigned long offset)
{
void *pageptr = subs->runtime->dma_area + offset;
return vmalloc_to_page(pageptr);
}
static struct snd_pcm_ops snd_ivtv_pcm_capture_ops = {
.open = snd_ivtv_pcm_capture_open,
.close = snd_ivtv_pcm_capture_close,
.ioctl = snd_ivtv_pcm_ioctl,
.hw_params = snd_ivtv_pcm_hw_params,
.hw_free = snd_ivtv_pcm_hw_free,
.prepare = snd_ivtv_pcm_prepare,
.trigger = snd_ivtv_pcm_trigger,
.pointer = snd_ivtv_pcm_pointer,
.page = snd_pcm_get_vmalloc_page,
};
int snd_ivtv_pcm_create(struct snd_ivtv_card *itvsc)
{
struct snd_pcm *sp;
struct snd_card *sc = itvsc->sc;
struct v4l2_device *v4l2_dev = itvsc->v4l2_dev;
struct ivtv *itv = to_ivtv(v4l2_dev);
int ret;
ret = snd_pcm_new(sc, "CX2341[56] PCM",
0, /* PCM device 0, the only one for this card */
0, /* 0 playback substreams */
1, /* 1 capture substream */
&sp);
if (ret) {
IVTV_ALSA_ERR("%s: snd_ivtv_pcm_create() failed with err %d\n",
__func__, ret);
goto err_exit;
}
spin_lock_init(&itvsc->slock);
snd_pcm_set_ops(sp, SNDRV_PCM_STREAM_CAPTURE,
&snd_ivtv_pcm_capture_ops);
sp->info_flags = 0;
sp->private_data = itvsc;
strlcpy(sp->name, itv->card_name, sizeof(sp->name));
return 0;
err_exit:
return ret;
}

23
drivers/media/pci/ivtv/ivtv-alsa-pcm.h Normal file
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/*
* ALSA PCM device for the
* ALSA interface to ivtv PCM capture streams
*
* Copyright (C) 2009,2012 Andy Walls <awalls@md.metrocast.net>
*
* 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
*/
int snd_ivtv_pcm_create(struct snd_ivtv_card *itvsc);

75
drivers/media/pci/ivtv/ivtv-alsa.h Normal file
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/*
* ALSA interface to ivtv PCM capture streams
*
* Copyright (C) 2009,2012 Andy Walls <awalls@md.metrocast.net>
* Copyright (C) 2009 Devin Heitmueller <dheitmueller@kernellabs.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
*/
struct snd_card;
struct snd_ivtv_card {
struct v4l2_device *v4l2_dev;
struct snd_card *sc;
unsigned int capture_transfer_done;
unsigned int hwptr_done_capture;
struct snd_pcm_substream *capture_pcm_substream;
spinlock_t slock;
};
extern int ivtv_alsa_debug;
/*
* File operations that manipulate the encoder or video or audio subdevices
* need to be serialized. Use the same lock we use for v4l2 file ops.
*/
static inline void snd_ivtv_lock(struct snd_ivtv_card *itvsc)
{
struct ivtv *itv = to_ivtv(itvsc->v4l2_dev);
mutex_lock(&itv->serialize_lock);
}
static inline void snd_ivtv_unlock(struct snd_ivtv_card *itvsc)
{
struct ivtv *itv = to_ivtv(itvsc->v4l2_dev);
mutex_unlock(&itv->serialize_lock);
}
#define IVTV_ALSA_DBGFLG_WARN (1 << 0)
#define IVTV_ALSA_DBGFLG_INFO (1 << 1)
#define IVTV_ALSA_DEBUG(x, type, fmt, args...) \
do { \
if ((x) & ivtv_alsa_debug) \
pr_info("%s-alsa: " type ": " fmt, \
v4l2_dev->name , ## args); \
} while (0)
#define IVTV_ALSA_DEBUG_WARN(fmt, args...) \
IVTV_ALSA_DEBUG(IVTV_ALSA_DBGFLG_WARN, "warning", fmt , ## args)
#define IVTV_ALSA_DEBUG_INFO(fmt, args...) \
IVTV_ALSA_DEBUG(IVTV_ALSA_DBGFLG_INFO, "info", fmt , ## args)
#define IVTV_ALSA_ERR(fmt, args...) \
pr_err("%s-alsa: " fmt, v4l2_dev->name , ## args)
#define IVTV_ALSA_WARN(fmt, args...) \
pr_warn("%s-alsa: " fmt, v4l2_dev->name , ## args)
#define IVTV_ALSA_INFO(fmt, args...) \
pr_info("%s-alsa: " fmt, v4l2_dev->name , ## args)

1370
drivers/media/pci/ivtv/ivtv-cards.c Normal file
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309
drivers/media/pci/ivtv/ivtv-cards.h Normal file
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/*
Functions to query card hardware
Copyright (C) 2003-2004 Kevin Thayer <nufan_wfk at yahoo.com>
Copyright (C) 2005-2007 Hans Verkuil <hverkuil@xs4all.nl>
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 IVTV_CARDS_H
#define IVTV_CARDS_H
/* Supported cards */
#define IVTV_CARD_PVR_250 0 /* WinTV PVR 250 */
#define IVTV_CARD_PVR_350 1 /* encoder, decoder, tv-out */
#define IVTV_CARD_PVR_150 2 /* WinTV PVR 150 and PVR 500 (really just two
PVR150s on one PCI board) */
#define IVTV_CARD_M179 3 /* AVerMedia M179 (encoder only) */
#define IVTV_CARD_MPG600 4 /* Kuroutoshikou ITVC16-STVLP/YUAN MPG600, encoder only */
#define IVTV_CARD_MPG160 5 /* Kuroutoshikou ITVC15-STVLP/YUAN MPG160
cx23415 based, but does not have tv-out */
#define IVTV_CARD_PG600 6 /* YUAN PG600/DIAMONDMM PVR-550 based on the CX Falcon 2 */
#define IVTV_CARD_AVC2410 7 /* Adaptec AVC-2410 */
#define IVTV_CARD_AVC2010 8 /* Adaptec AVD-2010 (No Tuner) */
#define IVTV_CARD_TG5000TV 9 /* NAGASE TRANSGEAR 5000TV, encoder only */
#define IVTV_CARD_VA2000MAX_SNT6 10 /* VA2000MAX-STN6 */
#define IVTV_CARD_CX23416GYC 11 /* Kuroutoshikou CX23416GYC-STVLP (Yuan MPG600GR OEM) */
#define IVTV_CARD_GV_MVPRX 12 /* I/O Data GV-MVP/RX, RX2, RX2W */
#define IVTV_CARD_GV_MVPRX2E 13 /* I/O Data GV-MVP/RX2E */
#define IVTV_CARD_GOTVIEW_PCI_DVD 14 /* GotView PCI DVD */
#define IVTV_CARD_GOTVIEW_PCI_DVD2 15 /* GotView PCI DVD2 */
#define IVTV_CARD_YUAN_MPC622 16 /* Yuan MPC622 miniPCI */
#define IVTV_CARD_DCTMTVP1 17 /* DIGITAL COWBOY DCT-MTVP1 */
#define IVTV_CARD_PG600V2 18 /* Yuan PG600V2/GotView PCI DVD Lite */
#define IVTV_CARD_CLUB3D 19 /* Club3D ZAP-TV1x01 */
#define IVTV_CARD_AVERTV_MCE116 20 /* AVerTV MCE 116 Plus */
#define IVTV_CARD_ASUS_FALCON2 21 /* ASUS Falcon2 */
#define IVTV_CARD_AVER_PVR150PLUS 22 /* AVerMedia PVR-150 Plus */
#define IVTV_CARD_AVER_EZMAKER 23 /* AVerMedia EZMaker PCI Deluxe */
#define IVTV_CARD_AVER_M104 24 /* AverMedia M104 miniPCI card */
#define IVTV_CARD_BUFFALO_MV5L 25 /* Buffalo PC-MV5L/PCI card */
#define IVTV_CARD_AVER_ULTRA1500MCE 26 /* AVerMedia UltraTV 1500 MCE */
#define IVTV_CARD_KIKYOU 27 /* Sony VAIO Giga Pocket (ENX Kikyou) */
#define IVTV_CARD_LAST 27
/* Variants of existing cards but with the same PCI IDs. The driver
detects these based on other device information.
These cards must always come last.
New cards must be inserted above, and the indices of the cards below
must be adjusted accordingly. */
/* PVR-350 V1 (uses saa7114) */
#define IVTV_CARD_PVR_350_V1 (IVTV_CARD_LAST+1)
/* 2 variants of Kuroutoshikou CX23416GYC-STVLP (Yuan MPG600GR OEM) */
#define IVTV_CARD_CX23416GYC_NOGR (IVTV_CARD_LAST+2)
#define IVTV_CARD_CX23416GYC_NOGRYCS (IVTV_CARD_LAST+3)
/* system vendor and device IDs */
#define PCI_VENDOR_ID_ICOMP 0x4444
#define PCI_DEVICE_ID_IVTV15 0x0803
#define PCI_DEVICE_ID_IVTV16 0x0016
/* subsystem vendor ID */
#define IVTV_PCI_ID_HAUPPAUGE 0x0070
#define IVTV_PCI_ID_HAUPPAUGE_ALT1 0x0270
#define IVTV_PCI_ID_HAUPPAUGE_ALT2 0x4070
#define IVTV_PCI_ID_ADAPTEC 0x9005
#define IVTV_PCI_ID_ASUSTEK 0x1043
#define IVTV_PCI_ID_AVERMEDIA 0x1461
#define IVTV_PCI_ID_YUAN1 0x12ab
#define IVTV_PCI_ID_YUAN2 0xff01
#define IVTV_PCI_ID_YUAN3 0xffab
#define IVTV_PCI_ID_YUAN4 0xfbab
#define IVTV_PCI_ID_DIAMONDMM 0xff92
#define IVTV_PCI_ID_IODATA 0x10fc
#define IVTV_PCI_ID_MELCO 0x1154
#define IVTV_PCI_ID_GOTVIEW1 0xffac
#define IVTV_PCI_ID_GOTVIEW2 0xffad
#define IVTV_PCI_ID_SONY 0x104d
/* hardware flags, no gaps allowed */
#define IVTV_HW_CX25840 (1 << 0)
#define IVTV_HW_SAA7115 (1 << 1)
#define IVTV_HW_SAA7127 (1 << 2)
#define IVTV_HW_MSP34XX (1 << 3)
#define IVTV_HW_TUNER (1 << 4)
#define IVTV_HW_WM8775 (1 << 5)
#define IVTV_HW_CS53L32A (1 << 6)
#define IVTV_HW_TVEEPROM (1 << 7)
#define IVTV_HW_SAA7114 (1 << 8)
#define IVTV_HW_UPD64031A (1 << 9)
#define IVTV_HW_UPD6408X (1 << 10)
#define IVTV_HW_SAA717X (1 << 11)
#define IVTV_HW_WM8739 (1 << 12)
#define IVTV_HW_VP27SMPX (1 << 13)
#define IVTV_HW_M52790 (1 << 14)
#define IVTV_HW_GPIO (1 << 15)
#define IVTV_HW_I2C_IR_RX_AVER (1 << 16)
#define IVTV_HW_I2C_IR_RX_HAUP_EXT (1 << 17) /* External before internal */
#define IVTV_HW_I2C_IR_RX_HAUP_INT (1 << 18)
#define IVTV_HW_Z8F0811_IR_TX_HAUP (1 << 19)
#define IVTV_HW_Z8F0811_IR_RX_HAUP (1 << 20)
#define IVTV_HW_I2C_IR_RX_ADAPTEC (1 << 21)
#define IVTV_HW_Z8F0811_IR_HAUP (IVTV_HW_Z8F0811_IR_RX_HAUP | \
IVTV_HW_Z8F0811_IR_TX_HAUP)
#define IVTV_HW_SAA711X (IVTV_HW_SAA7115 | IVTV_HW_SAA7114)
#define IVTV_HW_IR_RX_ANY (IVTV_HW_I2C_IR_RX_AVER | \
IVTV_HW_I2C_IR_RX_HAUP_EXT | \
IVTV_HW_I2C_IR_RX_HAUP_INT | \
IVTV_HW_Z8F0811_IR_RX_HAUP | \
IVTV_HW_I2C_IR_RX_ADAPTEC)
#define IVTV_HW_IR_TX_ANY (IVTV_HW_Z8F0811_IR_TX_HAUP)
#define IVTV_HW_IR_ANY (IVTV_HW_IR_RX_ANY | IVTV_HW_IR_TX_ANY)
/* video inputs */
#define IVTV_CARD_INPUT_VID_TUNER 1
#define IVTV_CARD_INPUT_SVIDEO1 2
#define IVTV_CARD_INPUT_SVIDEO2 3
#define IVTV_CARD_INPUT_COMPOSITE1 4
#define IVTV_CARD_INPUT_COMPOSITE2 5
#define IVTV_CARD_INPUT_COMPOSITE3 6
/* audio inputs */
#define IVTV_CARD_INPUT_AUD_TUNER 1
#define IVTV_CARD_INPUT_LINE_IN1 2
#define IVTV_CARD_INPUT_LINE_IN2 3
#define IVTV_CARD_MAX_VIDEO_INPUTS 6
#define IVTV_CARD_MAX_AUDIO_INPUTS 3
#define IVTV_CARD_MAX_TUNERS 3
/* SAA71XX HW inputs */
#define IVTV_SAA71XX_COMPOSITE0 0
#define IVTV_SAA71XX_COMPOSITE1 1
#define IVTV_SAA71XX_COMPOSITE2 2
#define IVTV_SAA71XX_COMPOSITE3 3
#define IVTV_SAA71XX_COMPOSITE4 4
#define IVTV_SAA71XX_COMPOSITE5 5
#define IVTV_SAA71XX_SVIDEO0 6
#define IVTV_SAA71XX_SVIDEO1 7
#define IVTV_SAA71XX_SVIDEO2 8
#define IVTV_SAA71XX_SVIDEO3 9
/* SAA717X needs to mark the tuner input by ORing with this flag */
#define IVTV_SAA717X_TUNER_FLAG 0x80
/* Dummy HW input */
#define IVTV_DUMMY_AUDIO 0
/* GPIO HW inputs */
#define IVTV_GPIO_TUNER 0
#define IVTV_GPIO_LINE_IN 1
/* SAA717X HW inputs */
#define IVTV_SAA717X_IN0 0
#define IVTV_SAA717X_IN1 1
#define IVTV_SAA717X_IN2 2
/* V4L2 capability aliases */
#define IVTV_CAP_ENCODER (V4L2_CAP_VIDEO_CAPTURE | V4L2_CAP_TUNER | \
V4L2_CAP_AUDIO | V4L2_CAP_READWRITE | V4L2_CAP_VBI_CAPTURE | \
V4L2_CAP_SLICED_VBI_CAPTURE)
#define IVTV_CAP_DECODER (V4L2_CAP_VIDEO_OUTPUT | \
V4L2_CAP_SLICED_VBI_OUTPUT | V4L2_CAP_VIDEO_OUTPUT_OVERLAY)
struct ivtv_card_video_input {
u8 video_type; /* video input type */
u8 audio_index; /* index in ivtv_card_audio_input array */
u16 video_input; /* hardware video input */
};
struct ivtv_card_audio_input {
u8 audio_type; /* audio input type */
u32 audio_input; /* hardware audio input */
u16 muxer_input; /* hardware muxer input for boards with a
multiplexer chip */
};
struct ivtv_card_output {
u8 name[32];
u16 video_output; /* hardware video output */
};
struct ivtv_card_pci_info {
u16 device;
u16 subsystem_vendor;
u16 subsystem_device;
};
/* GPIO definitions */
/* The mask is the set of bits used by the operation */
struct ivtv_gpio_init { /* set initial GPIO DIR and OUT values */
u16 direction; /* DIR setting. Leave to 0 if no init is needed */
u16 initial_value;
};
struct ivtv_gpio_video_input { /* select tuner/line in input */
u16 mask; /* leave to 0 if not supported */
u16 tuner;
u16 composite;
u16 svideo;
};
struct ivtv_gpio_audio_input { /* select tuner/line in input */
u16 mask; /* leave to 0 if not supported */
u16 tuner;
u16 linein;
u16 radio;
};
struct ivtv_gpio_audio_mute {
u16 mask; /* leave to 0 if not supported */
u16 mute; /* set this value to mute, 0 to unmute */
};
struct ivtv_gpio_audio_mode {
u16 mask; /* leave to 0 if not supported */
u16 mono; /* set audio to mono */
u16 stereo; /* set audio to stereo */
u16 lang1; /* set audio to the first language */
u16 lang2; /* set audio to the second language */
u16 both; /* both languages are output */
};
struct ivtv_gpio_audio_freq {
u16 mask; /* leave to 0 if not supported */
u16 f32000;
u16 f44100;
u16 f48000;
};
struct ivtv_gpio_audio_detect {
u16 mask; /* leave to 0 if not supported */
u16 stereo; /* if the input matches this value then
stereo is detected */
};
struct ivtv_card_tuner {
v4l2_std_id std; /* standard for which the tuner is suitable */
int tuner; /* tuner ID (from tuner.h) */
};
struct ivtv_card_tuner_i2c {
unsigned short radio[2];/* radio tuner i2c address to probe */
unsigned short demod[2];/* demodulator i2c address to probe */
unsigned short tv[4]; /* tv tuner i2c addresses to probe */
};
/* for card information/parameters */
struct ivtv_card {
int type;
char *name;
char *comment;
u32 v4l2_capabilities;
u32 hw_video; /* hardware used to process video */
u32 hw_audio; /* hardware used to process audio */
u32 hw_audio_ctrl; /* hardware used for the V4L2 controls (only 1 dev allowed) */
u32 hw_muxer; /* hardware used to multiplex audio input */
u32 hw_all; /* all hardware used by the board */
struct ivtv_card_video_input video_inputs[IVTV_CARD_MAX_VIDEO_INPUTS];
struct ivtv_card_audio_input audio_inputs[IVTV_CARD_MAX_AUDIO_INPUTS];
struct ivtv_card_audio_input radio_input;
int nof_outputs;
const struct ivtv_card_output *video_outputs;
u8 gr_config; /* config byte for the ghost reduction device */
u8 xceive_pin; /* XCeive tuner GPIO reset pin */
/* GPIO card-specific settings */
struct ivtv_gpio_init gpio_init;
struct ivtv_gpio_video_input gpio_video_input;
struct ivtv_gpio_audio_input gpio_audio_input;
struct ivtv_gpio_audio_mute gpio_audio_mute;
struct ivtv_gpio_audio_mode gpio_audio_mode;
struct ivtv_gpio_audio_freq gpio_audio_freq;
struct ivtv_gpio_audio_detect gpio_audio_detect;
struct ivtv_card_tuner tuners[IVTV_CARD_MAX_TUNERS];
struct ivtv_card_tuner_i2c *i2c;
/* list of device and subsystem vendor/devices that
correspond to this card type. */
const struct ivtv_card_pci_info *pci_list;
};
int ivtv_get_input(struct ivtv *itv, u16 index, struct v4l2_input *input);
int ivtv_get_output(struct ivtv *itv, u16 index, struct v4l2_output *output);
int ivtv_get_audio_input(struct ivtv *itv, u16 index, struct v4l2_audio *input);
int ivtv_get_audio_output(struct ivtv *itv, u16 index, struct v4l2_audioout *output);
const struct ivtv_card *ivtv_get_card(u16 index);
#endif

163
drivers/media/pci/ivtv/ivtv-controls.c Normal file
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/*
ioctl control functions
Copyright (C) 2003-2004 Kevin Thayer <nufan_wfk at yahoo.com>
Copyright (C) 2005-2007 Hans Verkuil <hverkuil@xs4all.nl>
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 "ivtv-driver.h"
#include "ivtv-ioctl.h"
#include "ivtv-controls.h"
#include "ivtv-mailbox.h"
static int ivtv_s_stream_vbi_fmt(struct cx2341x_handler *cxhdl, u32 fmt)
{
struct ivtv *itv = container_of(cxhdl, struct ivtv, cxhdl);
/* First try to allocate sliced VBI buffers if needed. */
if (fmt && itv->vbi.sliced_mpeg_data[0] == NULL) {
int i;
for (i = 0; i < IVTV_VBI_FRAMES; i++) {
/* Yuck, hardcoded. Needs to be a define */
itv->vbi.sliced_mpeg_data[i] = kmalloc(2049, GFP_KERNEL);
if (itv->vbi.sliced_mpeg_data[i] == NULL) {
while (--i >= 0) {
kfree(itv->vbi.sliced_mpeg_data[i]);
itv->vbi.sliced_mpeg_data[i] = NULL;
}
return -ENOMEM;
}
}
}
itv->vbi.insert_mpeg = fmt;
if (itv->vbi.insert_mpeg == 0) {
return 0;
}
/* Need sliced data for mpeg insertion */
if (ivtv_get_service_set(itv->vbi.sliced_in) == 0) {
if (itv->is_60hz)
itv->vbi.sliced_in->service_set = V4L2_SLICED_CAPTION_525;
else
itv->vbi.sliced_in->service_set = V4L2_SLICED_WSS_625;
ivtv_expand_service_set(itv->vbi.sliced_in, itv->is_50hz);
}
return 0;
}
static int ivtv_s_video_encoding(struct cx2341x_handler *cxhdl, u32 val)
{
struct ivtv *itv = container_of(cxhdl, struct ivtv, cxhdl);
int is_mpeg1 = val == V4L2_MPEG_VIDEO_ENCODING_MPEG_1;
struct v4l2_mbus_framefmt fmt;
/* fix videodecoder resolution */
fmt.width = cxhdl->width / (is_mpeg1 ? 2 : 1);
fmt.height = cxhdl->height;
fmt.code = V4L2_MBUS_FMT_FIXED;
v4l2_subdev_call(itv->sd_video, video, s_mbus_fmt, &fmt);
return 0;
}
static int ivtv_s_audio_sampling_freq(struct cx2341x_handler *cxhdl, u32 idx)
{
static const u32 freqs[3] = { 44100, 48000, 32000 };
struct ivtv *itv = container_of(cxhdl, struct ivtv, cxhdl);
/* The audio clock of the digitizer must match the codec sample
rate otherwise you get some very strange effects. */
if (idx < ARRAY_SIZE(freqs))
ivtv_call_all(itv, audio, s_clock_freq, freqs[idx]);
return 0;
}
static int ivtv_s_audio_mode(struct cx2341x_handler *cxhdl, u32 val)
{
struct ivtv *itv = container_of(cxhdl, struct ivtv, cxhdl);
itv->dualwatch_stereo_mode = val;
return 0;
}
struct cx2341x_handler_ops ivtv_cxhdl_ops = {
.s_audio_mode = ivtv_s_audio_mode,
.s_audio_sampling_freq = ivtv_s_audio_sampling_freq,
.s_video_encoding = ivtv_s_video_encoding,
.s_stream_vbi_fmt = ivtv_s_stream_vbi_fmt,
};
int ivtv_g_pts_frame(struct ivtv *itv, s64 *pts, s64 *frame)
{
u32 data[CX2341X_MBOX_MAX_DATA];
if (test_bit(IVTV_F_I_VALID_DEC_TIMINGS, &itv->i_flags)) {
*pts = (s64)((u64)itv->last_dec_timing[2] << 32) |
(u64)itv->last_dec_timing[1];
*frame = itv->last_dec_timing[0];
return 0;
}
*pts = 0;
*frame = 0;
if (atomic_read(&itv->decoding)) {
if (ivtv_api(itv, CX2341X_DEC_GET_TIMING_INFO, 5, data)) {
IVTV_DEBUG_WARN("GET_TIMING: couldn't read clock\n");
return -EIO;
}
memcpy(itv->last_dec_timing, data, sizeof(itv->last_dec_timing));
set_bit(IVTV_F_I_VALID_DEC_TIMINGS, &itv->i_flags);
*pts = (s64)((u64) data[2] << 32) | (u64) data[1];
*frame = data[0];
/*timing->scr = (u64) (((u64) data[4] << 32) | (u64) (data[3]));*/
}
return 0;
}
static int ivtv_g_volatile_ctrl(struct v4l2_ctrl *ctrl)
{
struct ivtv *itv = container_of(ctrl->handler, struct ivtv, cxhdl.hdl);
switch (ctrl->id) {
/* V4L2_CID_MPEG_VIDEO_DEC_PTS and V4L2_CID_MPEG_VIDEO_DEC_FRAME
control cluster */
case V4L2_CID_MPEG_VIDEO_DEC_PTS:
return ivtv_g_pts_frame(itv, &itv->ctrl_pts->val64,
&itv->ctrl_frame->val64);
}
return 0;
}
static int ivtv_s_ctrl(struct v4l2_ctrl *ctrl)
{
struct ivtv *itv = container_of(ctrl->handler, struct ivtv, cxhdl.hdl);
switch (ctrl->id) {
/* V4L2_CID_MPEG_AUDIO_DEC_PLAYBACK and MULTILINGUAL_PLAYBACK
control cluster */
case V4L2_CID_MPEG_AUDIO_DEC_PLAYBACK:
itv->audio_stereo_mode = itv->ctrl_audio_playback->val - 1;
itv->audio_bilingual_mode = itv->ctrl_audio_multilingual_playback->val - 1;
ivtv_vapi(itv, CX2341X_DEC_SET_AUDIO_MODE, 2, itv->audio_bilingual_mode, itv->audio_stereo_mode);
break;
}
return 0;
}
const struct v4l2_ctrl_ops ivtv_hdl_out_ops = {
.s_ctrl = ivtv_s_ctrl,
.g_volatile_ctrl = ivtv_g_volatile_ctrl,
};

28
drivers/media/pci/ivtv/ivtv-controls.h Normal file
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@@ -0,0 +1,28 @@
/*
ioctl control functions
Copyright (C) 2003-2004 Kevin Thayer <nufan_wfk at yahoo.com>
Copyright (C) 2005-2007 Hans Verkuil <hverkuil@xs4all.nl>
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 IVTV_CONTROLS_H
#define IVTV_CONTROLS_H
extern struct cx2341x_handler_ops ivtv_cxhdl_ops;
extern const struct v4l2_ctrl_ops ivtv_hdl_out_ops;
int ivtv_g_pts_frame(struct ivtv *itv, s64 *pts, s64 *frame);
#endif

1535
drivers/media/pci/ivtv/ivtv-driver.c Normal file
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850
drivers/media/pci/ivtv/ivtv-driver.h Normal file
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@@ -0,0 +1,850 @@
/*
ivtv driver internal defines and structures
Copyright (C) 2003-2004 Kevin Thayer <nufan_wfk at yahoo.com>
Copyright (C) 2004 Chris Kennedy <c@groovy.org>
Copyright (C) 2005-2007 Hans Verkuil <hverkuil@xs4all.nl>
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 IVTV_DRIVER_H
#define IVTV_DRIVER_H
/* Internal header for ivtv project:
* Driver for the cx23415/6 chip.
* Author: Kevin Thayer (nufan_wfk at yahoo.com)
* License: GPL
* http://www.ivtvdriver.org
*
* -----
* MPG600/MPG160 support by T.Adachi <tadachi@tadachi-net.com>
* and Takeru KOMORIYA<komoriya@paken.org>
*
* AVerMedia M179 GPIO info by Chris Pinkham <cpinkham@bc2va.org>
* using information provided by Jiun-Kuei Jung @ AVerMedia.
*/
#include <linux/module.h>
#include <linux/init.h>
#include <linux/delay.h>
#include <linux/sched.h>
#include <linux/fs.h>
#include <linux/pci.h>
#include <linux/interrupt.h>
#include <linux/spinlock.h>
#include <linux/i2c.h>
#include <linux/i2c-algo-bit.h>
#include <linux/list.h>
#include <linux/unistd.h>
#include <linux/pagemap.h>
#include <linux/scatterlist.h>
#include <linux/kthread.h>
#include <linux/mutex.h>
#include <linux/slab.h>
#include <asm/uaccess.h>
#include <asm/byteorder.h>
#include <linux/dvb/video.h>
#include <linux/dvb/audio.h>
#include <media/v4l2-common.h>
#include <media/v4l2-ioctl.h>
#include <media/v4l2-ctrls.h>
#include <media/v4l2-device.h>
#include <media/v4l2-fh.h>
#include <media/tuner.h>
#include <media/cx2341x.h>
#include <media/ir-kbd-i2c.h>
#include <linux/ivtv.h>
/* Memory layout */
#define IVTV_ENCODER_OFFSET 0x00000000
#define IVTV_ENCODER_SIZE 0x00800000 /* Total size is 0x01000000, but only first half is used */
#define IVTV_DECODER_OFFSET 0x01000000
#define IVTV_DECODER_SIZE 0x00800000 /* Total size is 0x01000000, but only first half is used */
#define IVTV_REG_OFFSET 0x02000000
#define IVTV_REG_SIZE 0x00010000
/* Maximum ivtv driver instances. Some people have a huge number of
capture cards, so set this to a high value. */
#define IVTV_MAX_CARDS 32
#define IVTV_ENC_STREAM_TYPE_MPG 0
#define IVTV_ENC_STREAM_TYPE_YUV 1
#define IVTV_ENC_STREAM_TYPE_VBI 2
#define IVTV_ENC_STREAM_TYPE_PCM 3
#define IVTV_ENC_STREAM_TYPE_RAD 4
#define IVTV_DEC_STREAM_TYPE_MPG 5
#define IVTV_DEC_STREAM_TYPE_VBI 6
#define IVTV_DEC_STREAM_TYPE_VOUT 7
#define IVTV_DEC_STREAM_TYPE_YUV 8
#define IVTV_MAX_STREAMS 9
#define IVTV_DMA_SG_OSD_ENT (2883584/PAGE_SIZE) /* sg entities */
/* DMA Registers */
#define IVTV_REG_DMAXFER (0x0000)
#define IVTV_REG_DMASTATUS (0x0004)
#define IVTV_REG_DECDMAADDR (0x0008)
#define IVTV_REG_ENCDMAADDR (0x000c)
#define IVTV_REG_DMACONTROL (0x0010)
#define IVTV_REG_IRQSTATUS (0x0040)
#define IVTV_REG_IRQMASK (0x0048)
/* Setup Registers */
#define IVTV_REG_ENC_SDRAM_REFRESH (0x07F8)
#define IVTV_REG_ENC_SDRAM_PRECHARGE (0x07FC)
#define IVTV_REG_DEC_SDRAM_REFRESH (0x08F8)
#define IVTV_REG_DEC_SDRAM_PRECHARGE (0x08FC)
#define IVTV_REG_VDM (0x2800)
#define IVTV_REG_AO (0x2D00)
#define IVTV_REG_BYTEFLUSH (0x2D24)
#define IVTV_REG_SPU (0x9050)
#define IVTV_REG_HW_BLOCKS (0x9054)
#define IVTV_REG_VPU (0x9058)
#define IVTV_REG_APU (0xA064)
/* Other registers */
#define IVTV_REG_DEC_LINE_FIELD (0x28C0)
/* debugging */
extern int ivtv_debug;
#ifdef CONFIG_VIDEO_ADV_DEBUG
extern int ivtv_fw_debug;
#endif
#define IVTV_DBGFLG_WARN (1 << 0)
#define IVTV_DBGFLG_INFO (1 << 1)
#define IVTV_DBGFLG_MB (1 << 2)
#define IVTV_DBGFLG_IOCTL (1 << 3)
#define IVTV_DBGFLG_FILE (1 << 4)
#define IVTV_DBGFLG_DMA (1 << 5)
#define IVTV_DBGFLG_IRQ (1 << 6)
#define IVTV_DBGFLG_DEC (1 << 7)
#define IVTV_DBGFLG_YUV (1 << 8)
#define IVTV_DBGFLG_I2C (1 << 9)
/* Flag to turn on high volume debugging */
#define IVTV_DBGFLG_HIGHVOL (1 << 10)
#define IVTV_DEBUG(x, type, fmt, args...) \
do { \
if ((x) & ivtv_debug) \
v4l2_info(&itv->v4l2_dev, " " type ": " fmt , ##args); \
} while (0)
#define IVTV_DEBUG_WARN(fmt, args...) IVTV_DEBUG(IVTV_DBGFLG_WARN, "warn", fmt , ## args)
#define IVTV_DEBUG_INFO(fmt, args...) IVTV_DEBUG(IVTV_DBGFLG_INFO, "info", fmt , ## args)
#define IVTV_DEBUG_MB(fmt, args...) IVTV_DEBUG(IVTV_DBGFLG_MB, "mb", fmt , ## args)
#define IVTV_DEBUG_DMA(fmt, args...) IVTV_DEBUG(IVTV_DBGFLG_DMA, "dma", fmt , ## args)
#define IVTV_DEBUG_IOCTL(fmt, args...) IVTV_DEBUG(IVTV_DBGFLG_IOCTL, "ioctl", fmt , ## args)
#define IVTV_DEBUG_FILE(fmt, args...) IVTV_DEBUG(IVTV_DBGFLG_FILE, "file", fmt , ## args)
#define IVTV_DEBUG_I2C(fmt, args...) IVTV_DEBUG(IVTV_DBGFLG_I2C, "i2c", fmt , ## args)
#define IVTV_DEBUG_IRQ(fmt, args...) IVTV_DEBUG(IVTV_DBGFLG_IRQ, "irq", fmt , ## args)
#define IVTV_DEBUG_DEC(fmt, args...) IVTV_DEBUG(IVTV_DBGFLG_DEC, "dec", fmt , ## args)
#define IVTV_DEBUG_YUV(fmt, args...) IVTV_DEBUG(IVTV_DBGFLG_YUV, "yuv", fmt , ## args)
#define IVTV_DEBUG_HIGH_VOL(x, type, fmt, args...) \
do { \
if (((x) & ivtv_debug) && (ivtv_debug & IVTV_DBGFLG_HIGHVOL)) \
v4l2_info(&itv->v4l2_dev, " " type ": " fmt , ##args); \
} while (0)
#define IVTV_DEBUG_HI_WARN(fmt, args...) IVTV_DEBUG_HIGH_VOL(IVTV_DBGFLG_WARN, "warn", fmt , ## args)
#define IVTV_DEBUG_HI_INFO(fmt, args...) IVTV_DEBUG_HIGH_VOL(IVTV_DBGFLG_INFO, "info", fmt , ## args)
#define IVTV_DEBUG_HI_MB(fmt, args...) IVTV_DEBUG_HIGH_VOL(IVTV_DBGFLG_MB, "mb", fmt , ## args)
#define IVTV_DEBUG_HI_DMA(fmt, args...) IVTV_DEBUG_HIGH_VOL(IVTV_DBGFLG_DMA, "dma", fmt , ## args)
#define IVTV_DEBUG_HI_IOCTL(fmt, args...) IVTV_DEBUG_HIGH_VOL(IVTV_DBGFLG_IOCTL, "ioctl", fmt , ## args)
#define IVTV_DEBUG_HI_FILE(fmt, args...) IVTV_DEBUG_HIGH_VOL(IVTV_DBGFLG_FILE, "file", fmt , ## args)
#define IVTV_DEBUG_HI_I2C(fmt, args...) IVTV_DEBUG_HIGH_VOL(IVTV_DBGFLG_I2C, "i2c", fmt , ## args)
#define IVTV_DEBUG_HI_IRQ(fmt, args...) IVTV_DEBUG_HIGH_VOL(IVTV_DBGFLG_IRQ, "irq", fmt , ## args)
#define IVTV_DEBUG_HI_DEC(fmt, args...) IVTV_DEBUG_HIGH_VOL(IVTV_DBGFLG_DEC, "dec", fmt , ## args)
#define IVTV_DEBUG_HI_YUV(fmt, args...) IVTV_DEBUG_HIGH_VOL(IVTV_DBGFLG_YUV, "yuv", fmt , ## args)
/* Standard kernel messages */
#define IVTV_ERR(fmt, args...) v4l2_err(&itv->v4l2_dev, fmt , ## args)
#define IVTV_WARN(fmt, args...) v4l2_warn(&itv->v4l2_dev, fmt , ## args)
#define IVTV_INFO(fmt, args...) v4l2_info(&itv->v4l2_dev, fmt , ## args)
/* output modes (cx23415 only) */
#define OUT_NONE 0
#define OUT_MPG 1
#define OUT_YUV 2
#define OUT_UDMA_YUV 3
#define OUT_PASSTHROUGH 4
#define IVTV_MAX_PGM_INDEX (400)
/* Default I2C SCL period in microseconds */
#define IVTV_DEFAULT_I2C_CLOCK_PERIOD 20
struct ivtv_options {
int kilobytes[IVTV_MAX_STREAMS]; /* size in kilobytes of each stream */
int cardtype; /* force card type on load */
int tuner; /* set tuner on load */
int radio; /* enable/disable radio */
int newi2c; /* new I2C algorithm */
int i2c_clock_period; /* period of SCL for I2C bus */
};
/* ivtv-specific mailbox template */
struct ivtv_mailbox {
u32 flags;
u32 cmd;
u32 retval;
u32 timeout;
u32 data[CX2341X_MBOX_MAX_DATA];
};
struct ivtv_api_cache {
unsigned long last_jiffies; /* when last command was issued */
u32 data[CX2341X_MBOX_MAX_DATA]; /* last sent api data */
};
struct ivtv_mailbox_data {
volatile struct ivtv_mailbox __iomem *mbox;
/* Bits 0-2 are for the encoder mailboxes, 0-1 are for the decoder mailboxes.
If the bit is set, then the corresponding mailbox is in use by the driver. */
unsigned long busy;
u8 max_mbox;
};
/* per-buffer bit flags */
#define IVTV_F_B_NEED_BUF_SWAP (1 << 0) /* this buffer should be byte swapped */
/* per-stream, s_flags */
#define IVTV_F_S_DMA_PENDING 0 /* this stream has pending DMA */
#define IVTV_F_S_DMA_HAS_VBI 1 /* the current DMA request also requests VBI data */
#define IVTV_F_S_NEEDS_DATA 2 /* this decoding stream needs more data */
#define IVTV_F_S_CLAIMED 3 /* this stream is claimed */
#define IVTV_F_S_STREAMING 4 /* the fw is decoding/encoding this stream */
#define IVTV_F_S_INTERNAL_USE 5 /* this stream is used internally (sliced VBI processing) */
#define IVTV_F_S_PASSTHROUGH 6 /* this stream is in passthrough mode */
#define IVTV_F_S_STREAMOFF 7 /* signal end of stream EOS */
#define IVTV_F_S_APPL_IO 8 /* this stream is used read/written by an application */
#define IVTV_F_S_PIO_PENDING 9 /* this stream has pending PIO */
#define IVTV_F_S_PIO_HAS_VBI 1 /* the current PIO request also requests VBI data */
/* per-ivtv, i_flags */
#define IVTV_F_I_DMA 0 /* DMA in progress */
#define IVTV_F_I_UDMA 1 /* UDMA in progress */
#define IVTV_F_I_UDMA_PENDING 2 /* UDMA pending */
#define IVTV_F_I_SPEED_CHANGE 3 /* a speed change is in progress */
#define IVTV_F_I_EOS 4 /* end of encoder stream reached */
#define IVTV_F_I_RADIO_USER 5 /* the radio tuner is selected */
#define IVTV_F_I_DIG_RST 6 /* reset digitizer */
#define IVTV_F_I_DEC_YUV 7 /* YUV instead of MPG is being decoded */
#define IVTV_F_I_UPDATE_CC 9 /* CC should be updated */
#define IVTV_F_I_UPDATE_WSS 10 /* WSS should be updated */
#define IVTV_F_I_UPDATE_VPS 11 /* VPS should be updated */
#define IVTV_F_I_DECODING_YUV 12 /* this stream is YUV frame decoding */
#define IVTV_F_I_ENC_PAUSED 13 /* the encoder is paused */
#define IVTV_F_I_VALID_DEC_TIMINGS 14 /* last_dec_timing is valid */
#define IVTV_F_I_HAVE_WORK 15 /* used in the interrupt handler: there is work to be done */
#define IVTV_F_I_WORK_HANDLER_VBI 16 /* there is work to be done for VBI */
#define IVTV_F_I_WORK_HANDLER_YUV 17 /* there is work to be done for YUV */
#define IVTV_F_I_WORK_HANDLER_PIO 18 /* there is work to be done for PIO */
#define IVTV_F_I_PIO 19 /* PIO in progress */
#define IVTV_F_I_DEC_PAUSED 20 /* the decoder is paused */
#define IVTV_F_I_INITED 21 /* set after first open */
#define IVTV_F_I_FAILED 22 /* set if first open failed */
#define IVTV_F_I_WORK_HANDLER_PCM 23 /* there is work to be done for PCM */
/* Event notifications */
#define IVTV_F_I_EV_DEC_STOPPED 28 /* decoder stopped event */
#define IVTV_F_I_EV_VSYNC 29 /* VSYNC event */
#define IVTV_F_I_EV_VSYNC_FIELD 30 /* VSYNC event field (0 = first, 1 = second field) */
#define IVTV_F_I_EV_VSYNC_ENABLED 31 /* VSYNC event enabled */
/* Scatter-Gather array element, used in DMA transfers */
struct ivtv_sg_element {
__le32 src;
__le32 dst;
__le32 size;
};
struct ivtv_sg_host_element {
u32 src;
u32 dst;
u32 size;
};
struct ivtv_user_dma {
struct mutex lock;
int page_count;
struct page *map[IVTV_DMA_SG_OSD_ENT];
/* Needed when dealing with highmem userspace buffers */
struct page *bouncemap[IVTV_DMA_SG_OSD_ENT];
/* Base Dev SG Array for cx23415/6 */
struct ivtv_sg_element SGarray[IVTV_DMA_SG_OSD_ENT];
dma_addr_t SG_handle;
int SG_length;
/* SG List of Buffers */
struct scatterlist SGlist[IVTV_DMA_SG_OSD_ENT];
};
struct ivtv_dma_page_info {
unsigned long uaddr;
unsigned long first;
unsigned long last;
unsigned int offset;
unsigned int tail;
int page_count;
};
struct ivtv_buffer {
struct list_head list;
dma_addr_t dma_handle;
unsigned short b_flags;
unsigned short dma_xfer_cnt;
char *buf;
u32 bytesused;
u32 readpos;
};
struct ivtv_queue {
struct list_head list; /* the list of buffers in this queue */
u32 buffers; /* number of buffers in this queue */
u32 length; /* total number of bytes of available buffer space */
u32 bytesused; /* total number of bytes used in this queue */
};
struct ivtv; /* forward reference */
struct ivtv_stream {
/* These first four fields are always set, even if the stream
is not actually created. */
struct video_device *vdev; /* NULL when stream not created */
struct ivtv *itv; /* for ease of use */
const char *name; /* name of the stream */
int type; /* stream type */
u32 caps; /* V4L2 capabilities */
struct v4l2_fh *fh; /* pointer to the streaming filehandle */
spinlock_t qlock; /* locks access to the queues */
unsigned long s_flags; /* status flags, see above */
int dma; /* can be PCI_DMA_TODEVICE, PCI_DMA_FROMDEVICE or PCI_DMA_NONE */
u32 pending_offset;
u32 pending_backup;
u64 pending_pts;
u32 dma_offset;
u32 dma_backup;
u64 dma_pts;
int subtype;
wait_queue_head_t waitq;
u32 dma_last_offset;
/* Buffer Stats */
u32 buffers;
u32 buf_size;
u32 buffers_stolen;
/* Buffer Queues */
struct ivtv_queue q_free; /* free buffers */
struct ivtv_queue q_full; /* full buffers */
struct ivtv_queue q_io; /* waiting for I/O */
struct ivtv_queue q_dma; /* waiting for DMA */
struct ivtv_queue q_predma; /* waiting for DMA */
/* DMA xfer counter, buffers belonging to the same DMA
xfer will have the same dma_xfer_cnt. */
u16 dma_xfer_cnt;
/* Base Dev SG Array for cx23415/6 */
struct ivtv_sg_host_element *sg_pending;
struct ivtv_sg_host_element *sg_processing;
struct ivtv_sg_element *sg_dma;
dma_addr_t sg_handle;
int sg_pending_size;
int sg_processing_size;
int sg_processed;
/* SG List of Buffers */
struct scatterlist *SGlist;
};
struct ivtv_open_id {
struct v4l2_fh fh;
int type; /* stream type */
int yuv_frames; /* 1: started OUT_UDMA_YUV output mode */
struct ivtv *itv;
};
static inline struct ivtv_open_id *fh2id(struct v4l2_fh *fh)
{
return container_of(fh, struct ivtv_open_id, fh);
}
struct yuv_frame_info
{
u32 update;
s32 src_x;
s32 src_y;
u32 src_w;
u32 src_h;
s32 dst_x;
s32 dst_y;
u32 dst_w;
u32 dst_h;
s32 pan_x;
s32 pan_y;
u32 vis_w;
u32 vis_h;
u32 interlaced_y;
u32 interlaced_uv;
s32 tru_x;
u32 tru_w;
u32 tru_h;
u32 offset_y;
s32 lace_mode;
u32 sync_field;
u32 delay;
u32 interlaced;
};
#define IVTV_YUV_MODE_INTERLACED 0x00
#define IVTV_YUV_MODE_PROGRESSIVE 0x01
#define IVTV_YUV_MODE_AUTO 0x02
#define IVTV_YUV_MODE_MASK 0x03
#define IVTV_YUV_SYNC_EVEN 0x00
#define IVTV_YUV_SYNC_ODD 0x04
#define IVTV_YUV_SYNC_MASK 0x04
#define IVTV_YUV_BUFFERS 8
struct yuv_playback_info
{
u32 reg_2834;
u32 reg_2838;
u32 reg_283c;
u32 reg_2840;
u32 reg_2844;
u32 reg_2848;
u32 reg_2854;
u32 reg_285c;
u32 reg_2864;
u32 reg_2870;
u32 reg_2874;
u32 reg_2890;
u32 reg_2898;
u32 reg_289c;
u32 reg_2918;
u32 reg_291c;
u32 reg_2920;
u32 reg_2924;
u32 reg_2928;
u32 reg_292c;
u32 reg_2930;
u32 reg_2934;
u32 reg_2938;
u32 reg_293c;
u32 reg_2940;
u32 reg_2944;
u32 reg_2948;
u32 reg_294c;
u32 reg_2950;
u32 reg_2954;
u32 reg_2958;
u32 reg_295c;
u32 reg_2960;
u32 reg_2964;
u32 reg_2968;
u32 reg_296c;
u32 reg_2970;
int v_filter_1;
int v_filter_2;
int h_filter;
u8 track_osd; /* Should yuv output track the OSD size & position */
u32 osd_x_offset;
u32 osd_y_offset;
u32 osd_x_pan;
u32 osd_y_pan;
u32 osd_vis_w;
u32 osd_vis_h;
u32 osd_full_w;
u32 osd_full_h;
int decode_height;
int lace_mode;
int lace_threshold;
int lace_sync_field;
atomic_t next_dma_frame;
atomic_t next_fill_frame;
u32 yuv_forced_update;
int update_frame;
u8 fields_lapsed; /* Counter used when delaying a frame */
struct yuv_frame_info new_frame_info[IVTV_YUV_BUFFERS];
struct yuv_frame_info old_frame_info;
struct yuv_frame_info old_frame_info_args;
void *blanking_ptr;
dma_addr_t blanking_dmaptr;
int stream_size;
u8 draw_frame; /* PVR350 buffer to draw into */
u8 max_frames_buffered; /* Maximum number of frames to buffer */
struct v4l2_rect main_rect;
u32 v4l2_src_w;
u32 v4l2_src_h;
u8 running; /* Have any frames been displayed */
};
#define IVTV_VBI_FRAMES 32
/* VBI data */
struct vbi_cc {
u8 odd[2]; /* two-byte payload of odd field */
u8 even[2]; /* two-byte payload of even field */;
};
struct vbi_vps {
u8 data[5]; /* five-byte VPS payload */
};
struct vbi_info {
/* VBI general data, does not change during streaming */
u32 raw_decoder_line_size; /* raw VBI line size from digitizer */
u8 raw_decoder_sav_odd_field; /* raw VBI Start Active Video digitizer code of odd field */
u8 raw_decoder_sav_even_field; /* raw VBI Start Active Video digitizer code of even field */
u32 sliced_decoder_line_size; /* sliced VBI line size from digitizer */
u8 sliced_decoder_sav_odd_field; /* sliced VBI Start Active Video digitizer code of odd field */
u8 sliced_decoder_sav_even_field; /* sliced VBI Start Active Video digitizer code of even field */
u32 start[2]; /* start of first VBI line in the odd/even fields */
u32 count; /* number of VBI lines per field */
u32 raw_size; /* size of raw VBI line from the digitizer */
u32 sliced_size; /* size of sliced VBI line from the digitizer */
u32 dec_start; /* start in decoder memory of VBI re-insertion buffers */
u32 enc_start; /* start in encoder memory of VBI capture buffers */
u32 enc_size; /* size of VBI capture area */
int fpi; /* number of VBI frames per interrupt */
struct v4l2_format in; /* current VBI capture format */
struct v4l2_sliced_vbi_format *sliced_in; /* convenience pointer to sliced struct in vbi.in union */
int insert_mpeg; /* if non-zero, then embed VBI data in MPEG stream */
/* Raw VBI compatibility hack */
u32 frame; /* frame counter hack needed for backwards compatibility
of old VBI software */
/* Sliced VBI output data */
struct vbi_cc cc_payload[256]; /* sliced VBI CC payload array: it is an array to
prevent dropping CC data if they couldn't be
processed fast enough */
int cc_payload_idx; /* index in cc_payload */
u8 cc_missing_cnt; /* counts number of frames without CC for passthrough mode */
int wss_payload; /* sliced VBI WSS payload */
u8 wss_missing_cnt; /* counts number of frames without WSS for passthrough mode */
struct vbi_vps vps_payload; /* sliced VBI VPS payload */
/* Sliced VBI capture data */
struct v4l2_sliced_vbi_data sliced_data[36]; /* sliced VBI storage for VBI encoder stream */
struct v4l2_sliced_vbi_data sliced_dec_data[36];/* sliced VBI storage for VBI decoder stream */
/* VBI Embedding data */
/* Buffer for VBI data inserted into MPEG stream.
The first byte is a dummy byte that's never used.
The next 16 bytes contain the MPEG header for the VBI data,
the remainder is the actual VBI data.
The max size accepted by the MPEG VBI reinsertion turns out
to be 1552 bytes, which happens to be 4 + (1 + 42) * (2 * 18) bytes,
where 4 is a four byte header, 42 is the max sliced VBI payload, 1 is
a single line header byte and 2 * 18 is the number of VBI lines per frame.
However, it seems that the data must be 1K aligned, so we have to
pad the data until the 1 or 2 K boundary.
This pointer array will allocate 2049 bytes to store each VBI frame. */
u8 *sliced_mpeg_data[IVTV_VBI_FRAMES];
u32 sliced_mpeg_size[IVTV_VBI_FRAMES];
struct ivtv_buffer sliced_mpeg_buf; /* temporary buffer holding data from sliced_mpeg_data */
u32 inserted_frame; /* index in sliced_mpeg_size of next sliced data
to be inserted in the MPEG stream */
};
/* forward declaration of struct defined in ivtv-cards.h */
struct ivtv_card;
/* Struct to hold info about ivtv cards */
struct ivtv {
/* General fixed card data */
struct pci_dev *pdev; /* PCI device */
const struct ivtv_card *card; /* card information */
const char *card_name; /* full name of the card */
const struct ivtv_card_tuner_i2c *card_i2c; /* i2c addresses to probe for tuner */
u8 has_cx23415; /* 1 if it is a cx23415 based card, 0 for cx23416 */
u8 pvr150_workaround; /* 1 if the cx25840 needs to workaround a PVR150 bug */
u8 nof_inputs; /* number of video inputs */
u8 nof_audio_inputs; /* number of audio inputs */
u32 v4l2_cap; /* V4L2 capabilities of card */
u32 hw_flags; /* hardware description of the board */
v4l2_std_id tuner_std; /* the norm of the card's tuner (fixed) */
struct v4l2_subdev *sd_video; /* controlling video decoder subdev */
struct v4l2_subdev *sd_audio; /* controlling audio subdev */
struct v4l2_subdev *sd_muxer; /* controlling audio muxer subdev */
resource_size_t base_addr; /* PCI resource base address */
volatile void __iomem *enc_mem; /* pointer to mapped encoder memory */
volatile void __iomem *dec_mem; /* pointer to mapped decoder memory */
volatile void __iomem *reg_mem; /* pointer to mapped registers */
struct ivtv_options options; /* user options */
struct v4l2_device v4l2_dev;
struct cx2341x_handler cxhdl;
struct {
/* PTS/Frame count control cluster */
struct v4l2_ctrl *ctrl_pts;
struct v4l2_ctrl *ctrl_frame;
};
struct {
/* Audio Playback control cluster */
struct v4l2_ctrl *ctrl_audio_playback;
struct v4l2_ctrl *ctrl_audio_multilingual_playback;
};
struct v4l2_ctrl_handler hdl_gpio;
struct v4l2_subdev sd_gpio; /* GPIO sub-device */
u16 instance;
/* High-level state info */
unsigned long i_flags; /* global ivtv flags */
u8 is_50hz; /* 1 if the current capture standard is 50 Hz */
u8 is_60hz /* 1 if the current capture standard is 60 Hz */;
u8 is_out_50hz /* 1 if the current TV output standard is 50 Hz */;
u8 is_out_60hz /* 1 if the current TV output standard is 60 Hz */;
int output_mode; /* decoder output mode: NONE, MPG, YUV, UDMA YUV, passthrough */
u32 audio_input; /* current audio input */
u32 active_input; /* current video input */
u32 active_output; /* current video output */
v4l2_std_id std; /* current capture TV standard */
v4l2_std_id std_out; /* current TV output standard */
u8 audio_stereo_mode; /* decoder setting how to handle stereo MPEG audio */
u8 audio_bilingual_mode; /* decoder setting how to handle bilingual MPEG audio */
/* Locking */
spinlock_t lock; /* lock access to this struct */
struct mutex serialize_lock; /* mutex used to serialize open/close/start/stop/ioctl operations */
/* Streams */
int stream_buf_size[IVTV_MAX_STREAMS]; /* stream buffer size */
struct ivtv_stream streams[IVTV_MAX_STREAMS]; /* stream data */
atomic_t capturing; /* count number of active capture streams */
atomic_t decoding; /* count number of active decoding streams */
/* ALSA interface for PCM capture stream */
struct snd_ivtv_card *alsa;
void (*pcm_announce_callback)(struct snd_ivtv_card *card, u8 *pcm_data,
size_t num_bytes);
/* Used for ivtv-alsa module loading */
struct work_struct request_module_wk;
/* Interrupts & DMA */
u32 irqmask; /* active interrupts */
u32 irq_rr_idx; /* round-robin stream index */
struct kthread_worker irq_worker; /* kthread worker for PIO/YUV/VBI actions */
struct task_struct *irq_worker_task; /* task for irq_worker */
struct kthread_work irq_work; /* kthread work entry */
spinlock_t dma_reg_lock; /* lock access to DMA engine registers */
int cur_dma_stream; /* index of current stream doing DMA (-1 if none) */
int cur_pio_stream; /* index of current stream doing PIO (-1 if none) */
u32 dma_data_req_offset; /* store offset in decoder memory of current DMA request */
u32 dma_data_req_size; /* store size of current DMA request */
int dma_retries; /* current DMA retry attempt */
struct ivtv_user_dma udma; /* user based DMA for OSD */
struct timer_list dma_timer; /* timer used to catch unfinished DMAs */
u32 last_vsync_field; /* last seen vsync field */
wait_queue_head_t dma_waitq; /* wake up when the current DMA is finished */
wait_queue_head_t eos_waitq; /* wake up when EOS arrives */
wait_queue_head_t event_waitq; /* wake up when the next decoder event arrives */
wait_queue_head_t vsync_waitq; /* wake up when the next decoder vsync arrives */
/* Mailbox */
struct ivtv_mailbox_data enc_mbox; /* encoder mailboxes */
struct ivtv_mailbox_data dec_mbox; /* decoder mailboxes */
struct ivtv_api_cache api_cache[256]; /* cached API commands */
/* I2C */
struct i2c_adapter i2c_adap;
struct i2c_algo_bit_data i2c_algo;
struct i2c_client i2c_client;
int i2c_state; /* i2c bit state */
struct mutex i2c_bus_lock; /* lock i2c bus */
struct IR_i2c_init_data ir_i2c_init_data;
/* Program Index information */
u32 pgm_info_offset; /* start of pgm info in encoder memory */
u32 pgm_info_num; /* number of elements in the pgm cyclic buffer in encoder memory */
u32 pgm_info_write_idx; /* last index written by the card that was transferred to pgm_info[] */
u32 pgm_info_read_idx; /* last index in pgm_info read by the application */
struct v4l2_enc_idx_entry pgm_info[IVTV_MAX_PGM_INDEX]; /* filled from the pgm cyclic buffer on the card */
/* Miscellaneous */
u32 open_id; /* incremented each time an open occurs, is >= 1 */
int search_pack_header; /* 1 if ivtv_copy_buf_to_user() is scanning for a pack header (0xba) */
int speed; /* current playback speed setting */
u8 speed_mute_audio; /* 1 if audio should be muted when fast forward */
u64 mpg_data_received; /* number of bytes received from the MPEG stream */
u64 vbi_data_inserted; /* number of VBI bytes inserted into the MPEG stream */
u32 last_dec_timing[3]; /* cache last retrieved pts/scr/frame values */
unsigned long dualwatch_jiffies;/* jiffies value of the previous dualwatch check */
u32 dualwatch_stereo_mode; /* current detected dualwatch stereo mode */
/* VBI state info */
struct vbi_info vbi; /* VBI-specific data */
/* YUV playback */
struct yuv_playback_info yuv_info; /* YUV playback data */
/* OSD support */
unsigned long osd_video_pbase;
int osd_global_alpha_state; /* 1 = global alpha is on */
int osd_local_alpha_state; /* 1 = local alpha is on */
int osd_chroma_key_state; /* 1 = chroma-keying is on */
u8 osd_global_alpha; /* current global alpha */
u32 osd_chroma_key; /* current chroma key */
struct v4l2_rect osd_rect; /* current OSD position and size */
struct v4l2_rect main_rect; /* current Main window position and size */
struct osd_info *osd_info; /* ivtvfb private OSD info */
void (*ivtvfb_restore)(struct ivtv *itv); /* Used for a warm start */
};
static inline struct ivtv *to_ivtv(struct v4l2_device *v4l2_dev)
{
return container_of(v4l2_dev, struct ivtv, v4l2_dev);
}
/* ivtv extensions to be loaded */
extern int (*ivtv_ext_init)(struct ivtv *);
/* Globals */
extern int ivtv_first_minor;
/*==============Prototypes==================*/
/* Hardware/IRQ */
void ivtv_set_irq_mask(struct ivtv *itv, u32 mask);
void ivtv_clear_irq_mask(struct ivtv *itv, u32 mask);
/* try to set output mode, return current mode. */
int ivtv_set_output_mode(struct ivtv *itv, int mode);
/* return current output stream based on current mode */
struct ivtv_stream *ivtv_get_output_stream(struct ivtv *itv);
/* Return non-zero if a signal is pending */
int ivtv_msleep_timeout(unsigned int msecs, int intr);
/* Wait on queue, returns -EINTR if interrupted */
int ivtv_waitq(wait_queue_head_t *waitq);
/* Read Hauppauge eeprom */
struct tveeprom; /* forward reference */
void ivtv_read_eeprom(struct ivtv *itv, struct tveeprom *tv);
/* First-open initialization: load firmware, init cx25840, etc. */
int ivtv_init_on_first_open(struct ivtv *itv);
/* Test if the current VBI mode is raw (1) or sliced (0) */
static inline int ivtv_raw_vbi(const struct ivtv *itv)
{
return itv->vbi.in.type == V4L2_BUF_TYPE_VBI_CAPTURE;
}
/* This is a PCI post thing, where if the pci register is not read, then
the write doesn't always take effect right away. By reading back the
register any pending PCI writes will be performed (in order), and so
you can be sure that the writes are guaranteed to be done.
Rarely needed, only in some timing sensitive cases.
Apparently if this is not done some motherboards seem
to kill the firmware and get into the broken state until computer is
rebooted. */
#define write_sync(val, reg) \
do { writel(val, reg); readl(reg); } while (0)
#define read_reg(reg) readl(itv->reg_mem + (reg))
#define write_reg(val, reg) writel(val, itv->reg_mem + (reg))
#define write_reg_sync(val, reg) \
do { write_reg(val, reg); read_reg(reg); } while (0)
#define read_enc(addr) readl(itv->enc_mem + (u32)(addr))
#define write_enc(val, addr) writel(val, itv->enc_mem + (u32)(addr))
#define write_enc_sync(val, addr) \
do { write_enc(val, addr); read_enc(addr); } while (0)
#define read_dec(addr) readl(itv->dec_mem + (u32)(addr))
#define write_dec(val, addr) writel(val, itv->dec_mem + (u32)(addr))
#define write_dec_sync(val, addr) \
do { write_dec(val, addr); read_dec(addr); } while (0)
/* Call the specified callback for all subdevs matching hw (if 0, then
match them all). Ignore any errors. */
#define ivtv_call_hw(itv, hw, o, f, args...) \
do { \
struct v4l2_subdev *__sd; \
__v4l2_device_call_subdevs_p(&(itv)->v4l2_dev, __sd, \
!(hw) || (__sd->grp_id & (hw)), o, f , ##args); \
} while (0)
#define ivtv_call_all(itv, o, f, args...) ivtv_call_hw(itv, 0, o, f , ##args)
/* Call the specified callback for all subdevs matching hw (if 0, then
match them all). If the callback returns an error other than 0 or
-ENOIOCTLCMD, then return with that error code. */
#define ivtv_call_hw_err(itv, hw, o, f, args...) \
({ \
struct v4l2_subdev *__sd; \
__v4l2_device_call_subdevs_until_err_p(&(itv)->v4l2_dev, __sd, \
!(hw) || (__sd->grp_id & (hw)), o, f , ##args); \
})
#define ivtv_call_all_err(itv, o, f, args...) ivtv_call_hw_err(itv, 0, o, f , ##args)
#endif

1073
drivers/media/pci/ivtv/ivtv-fileops.c Normal file
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44
drivers/media/pci/ivtv/ivtv-fileops.h Normal file
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/*
file operation functions
Copyright (C) 2003-2004 Kevin Thayer <nufan_wfk at yahoo.com>
Copyright (C) 2005-2007 Hans Verkuil <hverkuil@xs4all.nl>
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 IVTV_FILEOPS_H
#define IVTV_FILEOPS_H
/* Testing/Debugging */
int ivtv_v4l2_open(struct file *filp);
ssize_t ivtv_v4l2_read(struct file *filp, char __user *buf, size_t count,
loff_t * pos);
ssize_t ivtv_v4l2_write(struct file *filp, const char __user *buf, size_t count,
loff_t * pos);
int ivtv_v4l2_close(struct file *filp);
unsigned int ivtv_v4l2_enc_poll(struct file *filp, poll_table * wait);
unsigned int ivtv_v4l2_dec_poll(struct file *filp, poll_table * wait);
int ivtv_start_capture(struct ivtv_open_id *id);
void ivtv_stop_capture(struct ivtv_open_id *id, int gop_end);
int ivtv_start_decoding(struct ivtv_open_id *id, int speed);
void ivtv_mute(struct ivtv *itv);
void ivtv_unmute(struct ivtv *itv);
/* Utilities */
/* Shared with ivtv-alsa module */
int ivtv_claim_stream(struct ivtv_open_id *id, int type);
void ivtv_release_stream(struct ivtv_stream *s);
#endif

402
drivers/media/pci/ivtv/ivtv-firmware.c Normal file
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/*
ivtv firmware functions.
Copyright (C) 2003-2004 Kevin Thayer <nufan_wfk at yahoo.com>
Copyright (C) 2004 Chris Kennedy <c@groovy.org>
Copyright (C) 2005-2007 Hans Verkuil <hverkuil@xs4all.nl>
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 "ivtv-driver.h"
#include "ivtv-mailbox.h"
#include "ivtv-firmware.h"
#include "ivtv-yuv.h"
#include "ivtv-ioctl.h"
#include "ivtv-cards.h"
#include <linux/firmware.h>
#include <media/saa7127.h>
#define IVTV_MASK_SPU_ENABLE 0xFFFFFFFE
#define IVTV_MASK_VPU_ENABLE15 0xFFFFFFF6
#define IVTV_MASK_VPU_ENABLE16 0xFFFFFFFB
#define IVTV_CMD_VDM_STOP 0x00000000
#define IVTV_CMD_AO_STOP 0x00000005
#define IVTV_CMD_APU_PING 0x00000000
#define IVTV_CMD_VPU_STOP15 0xFFFFFFFE
#define IVTV_CMD_VPU_STOP16 0xFFFFFFEE
#define IVTV_CMD_HW_BLOCKS_RST 0xFFFFFFFF
#define IVTV_CMD_SPU_STOP 0x00000001
#define IVTV_CMD_SDRAM_PRECHARGE_INIT 0x0000001A
#define IVTV_CMD_SDRAM_REFRESH_INIT 0x80000640
#define IVTV_SDRAM_SLEEPTIME 600
#define IVTV_DECODE_INIT_MPEG_FILENAME "v4l-cx2341x-init.mpg"
#define IVTV_DECODE_INIT_MPEG_SIZE (152*1024)
/* Encoder/decoder firmware sizes */
#define IVTV_FW_ENC_SIZE (376836)
#define IVTV_FW_DEC_SIZE (256*1024)
static int load_fw_direct(const char *fn, volatile u8 __iomem *mem, struct ivtv *itv, long size)
{
const struct firmware *fw = NULL;
int retries = 3;
retry:
if (retries && request_firmware(&fw, fn, &itv->pdev->dev) == 0) {
int i;
volatile u32 __iomem *dst = (volatile u32 __iomem *)mem;
const u32 *src = (const u32 *)fw->data;
if (fw->size != size) {
/* Due to race conditions in firmware loading (esp. with udev <0.95)
the wrong file was sometimes loaded. So we check filesizes to
see if at least the right-sized file was loaded. If not, then we
retry. */
IVTV_INFO("Retry: file loaded was not %s (expected size %ld, got %zd)\n", fn, size, fw->size);
release_firmware(fw);
retries--;
goto retry;
}
for (i = 0; i < fw->size; i += 4) {
/* no need for endianness conversion on the ppc */
__raw_writel(*src, dst);
dst++;
src++;
}
IVTV_INFO("Loaded %s firmware (%zd bytes)\n", fn, fw->size);
release_firmware(fw);
return size;
}
IVTV_ERR("Unable to open firmware %s (must be %ld bytes)\n", fn, size);
IVTV_ERR("Did you put the firmware in the hotplug firmware directory?\n");
return -ENOMEM;
}
void ivtv_halt_firmware(struct ivtv *itv)
{
IVTV_DEBUG_INFO("Preparing for firmware halt.\n");
if (itv->has_cx23415 && itv->dec_mbox.mbox)
ivtv_vapi(itv, CX2341X_DEC_HALT_FW, 0);
if (itv->enc_mbox.mbox)
ivtv_vapi(itv, CX2341X_ENC_HALT_FW, 0);
ivtv_msleep_timeout(10, 0);
itv->enc_mbox.mbox = itv->dec_mbox.mbox = NULL;
IVTV_DEBUG_INFO("Stopping VDM\n");
write_reg(IVTV_CMD_VDM_STOP, IVTV_REG_VDM);
IVTV_DEBUG_INFO("Stopping AO\n");
write_reg(IVTV_CMD_AO_STOP, IVTV_REG_AO);
IVTV_DEBUG_INFO("pinging (?) APU\n");
write_reg(IVTV_CMD_APU_PING, IVTV_REG_APU);
IVTV_DEBUG_INFO("Stopping VPU\n");
if (!itv->has_cx23415)
write_reg(IVTV_CMD_VPU_STOP16, IVTV_REG_VPU);
else
write_reg(IVTV_CMD_VPU_STOP15, IVTV_REG_VPU);
IVTV_DEBUG_INFO("Resetting Hw Blocks\n");
write_reg(IVTV_CMD_HW_BLOCKS_RST, IVTV_REG_HW_BLOCKS);
IVTV_DEBUG_INFO("Stopping SPU\n");
write_reg(IVTV_CMD_SPU_STOP, IVTV_REG_SPU);
ivtv_msleep_timeout(10, 0);
IVTV_DEBUG_INFO("init Encoder SDRAM pre-charge\n");
write_reg(IVTV_CMD_SDRAM_PRECHARGE_INIT, IVTV_REG_ENC_SDRAM_PRECHARGE);
IVTV_DEBUG_INFO("init Encoder SDRAM refresh to 1us\n");
write_reg(IVTV_CMD_SDRAM_REFRESH_INIT, IVTV_REG_ENC_SDRAM_REFRESH);
if (itv->has_cx23415) {
IVTV_DEBUG_INFO("init Decoder SDRAM pre-charge\n");
write_reg(IVTV_CMD_SDRAM_PRECHARGE_INIT, IVTV_REG_DEC_SDRAM_PRECHARGE);
IVTV_DEBUG_INFO("init Decoder SDRAM refresh to 1us\n");
write_reg(IVTV_CMD_SDRAM_REFRESH_INIT, IVTV_REG_DEC_SDRAM_REFRESH);
}
IVTV_DEBUG_INFO("Sleeping for %dms\n", IVTV_SDRAM_SLEEPTIME);
ivtv_msleep_timeout(IVTV_SDRAM_SLEEPTIME, 0);
}
void ivtv_firmware_versions(struct ivtv *itv)
{
u32 data[CX2341X_MBOX_MAX_DATA];
/* Encoder */
ivtv_vapi_result(itv, data, CX2341X_ENC_GET_VERSION, 0);
IVTV_INFO("Encoder revision: 0x%08x\n", data[0]);
if (data[0] != 0x02060039)
IVTV_WARN("Recommended firmware version is 0x02060039.\n");
if (itv->has_cx23415) {
/* Decoder */
ivtv_vapi_result(itv, data, CX2341X_DEC_GET_VERSION, 0);
IVTV_INFO("Decoder revision: 0x%08x\n", data[0]);
}
}
static int ivtv_firmware_copy(struct ivtv *itv)
{
IVTV_DEBUG_INFO("Loading encoder image\n");
if (load_fw_direct(CX2341X_FIRM_ENC_FILENAME,
itv->enc_mem, itv, IVTV_FW_ENC_SIZE) != IVTV_FW_ENC_SIZE) {
IVTV_DEBUG_WARN("failed loading encoder firmware\n");
return -3;
}
if (!itv->has_cx23415)
return 0;
IVTV_DEBUG_INFO("Loading decoder image\n");
if (load_fw_direct(CX2341X_FIRM_DEC_FILENAME,
itv->dec_mem, itv, IVTV_FW_DEC_SIZE) != IVTV_FW_DEC_SIZE) {
IVTV_DEBUG_WARN("failed loading decoder firmware\n");
return -1;
}
return 0;
}
static volatile struct ivtv_mailbox __iomem *ivtv_search_mailbox(const volatile u8 __iomem *mem, u32 size)
{
int i;
/* mailbox is preceded by a 16 byte 'magic cookie' starting at a 256-byte
address boundary */
for (i = 0; i < size; i += 0x100) {
if (readl(mem + i) == 0x12345678 &&
readl(mem + i + 4) == 0x34567812 &&
readl(mem + i + 8) == 0x56781234 &&
readl(mem + i + 12) == 0x78123456) {
return (volatile struct ivtv_mailbox __iomem *)(mem + i + 16);
}
}
return NULL;
}
int ivtv_firmware_init(struct ivtv *itv)
{
int err;
ivtv_halt_firmware(itv);
/* load firmware */
err = ivtv_firmware_copy(itv);
if (err) {
IVTV_DEBUG_WARN("Error %d loading firmware\n", err);
return err;
}
/* start firmware */
write_reg(read_reg(IVTV_REG_SPU) & IVTV_MASK_SPU_ENABLE, IVTV_REG_SPU);
ivtv_msleep_timeout(100, 0);
if (itv->has_cx23415)
write_reg(read_reg(IVTV_REG_VPU) & IVTV_MASK_VPU_ENABLE15, IVTV_REG_VPU);
else
write_reg(read_reg(IVTV_REG_VPU) & IVTV_MASK_VPU_ENABLE16, IVTV_REG_VPU);
ivtv_msleep_timeout(100, 0);
/* find mailboxes and ping firmware */
itv->enc_mbox.mbox = ivtv_search_mailbox(itv->enc_mem, IVTV_ENCODER_SIZE);
if (itv->enc_mbox.mbox == NULL)
IVTV_ERR("Encoder mailbox not found\n");
else if (ivtv_vapi(itv, CX2341X_ENC_PING_FW, 0)) {
IVTV_ERR("Encoder firmware dead!\n");
itv->enc_mbox.mbox = NULL;
}
if (itv->enc_mbox.mbox == NULL)
return -ENODEV;
if (!itv->has_cx23415)
return 0;
itv->dec_mbox.mbox = ivtv_search_mailbox(itv->dec_mem, IVTV_DECODER_SIZE);
if (itv->dec_mbox.mbox == NULL) {
IVTV_ERR("Decoder mailbox not found\n");
} else if (itv->has_cx23415 && ivtv_vapi(itv, CX2341X_DEC_PING_FW, 0)) {
IVTV_ERR("Decoder firmware dead!\n");
itv->dec_mbox.mbox = NULL;
} else {
/* Firmware okay, so check yuv output filter table */
ivtv_yuv_filter_check(itv);
}
return itv->dec_mbox.mbox ? 0 : -ENODEV;
}
void ivtv_init_mpeg_decoder(struct ivtv *itv)
{
u32 data[CX2341X_MBOX_MAX_DATA];
long readbytes;
volatile u8 __iomem *mem_offset;
data[0] = 0;
data[1] = itv->cxhdl.width; /* YUV source width */
data[2] = itv->cxhdl.height;
data[3] = itv->cxhdl.audio_properties; /* Audio settings to use,
bitmap. see docs. */
if (ivtv_api(itv, CX2341X_DEC_SET_DECODER_SOURCE, 4, data)) {
IVTV_ERR("ivtv_init_mpeg_decoder failed to set decoder source\n");
return;
}
if (ivtv_vapi(itv, CX2341X_DEC_START_PLAYBACK, 2, 0, 1) != 0) {
IVTV_ERR("ivtv_init_mpeg_decoder failed to start playback\n");
return;
}
ivtv_api_get_data(&itv->dec_mbox, IVTV_MBOX_DMA, 2, data);
mem_offset = itv->dec_mem + data[1];
if ((readbytes = load_fw_direct(IVTV_DECODE_INIT_MPEG_FILENAME,
mem_offset, itv, IVTV_DECODE_INIT_MPEG_SIZE)) <= 0) {
IVTV_DEBUG_WARN("failed to read mpeg decoder initialisation file %s\n",
IVTV_DECODE_INIT_MPEG_FILENAME);
} else {
ivtv_vapi(itv, CX2341X_DEC_SCHED_DMA_FROM_HOST, 3, 0, readbytes, 0);
ivtv_msleep_timeout(100, 0);
}
ivtv_vapi(itv, CX2341X_DEC_STOP_PLAYBACK, 4, 0, 0, 0, 1);
}
/* Try to restart the card & restore previous settings */
static int ivtv_firmware_restart(struct ivtv *itv)
{
int rc = 0;
v4l2_std_id std;
if (itv->v4l2_cap & V4L2_CAP_VIDEO_OUTPUT)
/* Display test image during restart */
ivtv_call_hw(itv, IVTV_HW_SAA7127, video, s_routing,
SAA7127_INPUT_TYPE_TEST_IMAGE,
itv->card->video_outputs[itv->active_output].video_output,
0);
mutex_lock(&itv->udma.lock);
rc = ivtv_firmware_init(itv);
if (rc) {
mutex_unlock(&itv->udma.lock);
return rc;
}
/* Allow settings to reload */
ivtv_mailbox_cache_invalidate(itv);
/* Restore encoder video standard */
std = itv->std;
itv->std = 0;
ivtv_s_std_enc(itv, std);
if (itv->v4l2_cap & V4L2_CAP_VIDEO_OUTPUT) {
ivtv_init_mpeg_decoder(itv);
/* Restore decoder video standard */
std = itv->std_out;
itv->std_out = 0;
ivtv_s_std_dec(itv, std);
/* Restore framebuffer if active */
if (itv->ivtvfb_restore)
itv->ivtvfb_restore(itv);
/* Restore alpha settings */
ivtv_set_osd_alpha(itv);
/* Restore normal output */
ivtv_call_hw(itv, IVTV_HW_SAA7127, video, s_routing,
SAA7127_INPUT_TYPE_NORMAL,
itv->card->video_outputs[itv->active_output].video_output,
0);
}
mutex_unlock(&itv->udma.lock);
return rc;
}
/* Check firmware running state. The checks fall through
allowing multiple failures to be logged. */
int ivtv_firmware_check(struct ivtv *itv, char *where)
{
int res = 0;
/* Check encoder is still running */
if (ivtv_vapi(itv, CX2341X_ENC_PING_FW, 0) < 0) {
IVTV_WARN("Encoder has died : %s\n", where);
res = -1;
}
/* Also check audio. Only check if not in use & encoder is okay */
if (!res && !atomic_read(&itv->capturing) &&
(!atomic_read(&itv->decoding) ||
(atomic_read(&itv->decoding) < 2 && test_bit(IVTV_F_I_DEC_YUV,
&itv->i_flags)))) {
if (ivtv_vapi(itv, CX2341X_ENC_MISC, 1, 12) < 0) {
IVTV_WARN("Audio has died (Encoder OK) : %s\n", where);
res = -2;
}
}
if (itv->v4l2_cap & V4L2_CAP_VIDEO_OUTPUT) {
/* Second audio check. Skip if audio already failed */
if (res != -2 && read_dec(0x100) != read_dec(0x104)) {
/* Wait & try again to be certain. */
ivtv_msleep_timeout(14, 0);
if (read_dec(0x100) != read_dec(0x104)) {
IVTV_WARN("Audio has died (Decoder) : %s\n",
where);
res = -1;
}
}
/* Check decoder is still running */
if (ivtv_vapi(itv, CX2341X_DEC_PING_FW, 0) < 0) {
IVTV_WARN("Decoder has died : %s\n", where);
res = -1;
}
}
/* If something failed & currently idle, try to reload */
if (res && !atomic_read(&itv->capturing) &&
!atomic_read(&itv->decoding)) {
IVTV_INFO("Detected in %s that firmware had failed - "
"Reloading\n", where);
res = ivtv_firmware_restart(itv);
/*
* Even if restarted ok, still signal a problem had occurred.
* The caller can come through this function again to check
* if things are really ok after the restart.
*/
if (!res) {
IVTV_INFO("Firmware restart okay\n");
res = -EAGAIN;
} else {
IVTV_INFO("Firmware restart failed\n");
}
} else if (res) {
res = -EIO;
}
return res;
}
MODULE_FIRMWARE(CX2341X_FIRM_ENC_FILENAME);
MODULE_FIRMWARE(CX2341X_FIRM_DEC_FILENAME);
MODULE_FIRMWARE(IVTV_DECODE_INIT_MPEG_FILENAME);

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drivers/media/pci/ivtv/ivtv-firmware.h Normal file
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/*
ivtv firmware functions.
Copyright (C) 2003-2004 Kevin Thayer <nufan_wfk at yahoo.com>
Copyright (C) 2004 Chris Kennedy <c@groovy.org>
Copyright (C) 2005-2007 Hans Verkuil <hverkuil@xs4all.nl>
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 IVTV_FIRMWARE_H
#define IVTV_FIRMWARE_H
int ivtv_firmware_init(struct ivtv *itv);
void ivtv_firmware_versions(struct ivtv *itv);
void ivtv_halt_firmware(struct ivtv *itv);
void ivtv_init_mpeg_decoder(struct ivtv *itv);
int ivtv_firmware_check(struct ivtv *itv, char *where);
#endif

374
drivers/media/pci/ivtv/ivtv-gpio.c Normal file
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/*
gpio functions.
Merging GPIO support into driver:
Copyright (C) 2004 Chris Kennedy <c@groovy.org>
Copyright (C) 2005-2007 Hans Verkuil <hverkuil@xs4all.nl>
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 "ivtv-driver.h"
#include "ivtv-cards.h"
#include "ivtv-gpio.h"
#include "tuner-xc2028.h"
#include <media/tuner.h>
#include <media/v4l2-ctrls.h>
/*
* GPIO assignment of Yuan MPG600/MPG160
*
* bit 15 14 13 12 | 11 10 9 8 | 7 6 5 4 | 3 2 1 0
* OUTPUT IN1 IN0 AM3 AM2 AM1 AM0
* INPUT DM1 DM0
*
* IN* : Input selection
* IN1 IN0
* 1 1 N/A
* 1 0 Line
* 0 1 N/A
* 0 0 Tuner
*
* AM* : Audio Mode
* AM3 0: Normal 1: Mixed(Sub+Main channel)
* AM2 0: Subchannel 1: Main channel
* AM1 0: Stereo 1: Mono
* AM0 0: Normal 1: Mute
*
* DM* : Detected tuner audio Mode
* DM1 0: Stereo 1: Mono
* DM0 0: Multiplex 1: Normal
*
* GPIO Initial Settings
* MPG600 MPG160
* DIR 0x3080 0x7080
* OUTPUT 0x000C 0x400C
*
* Special thanks to Makoto Iguchi <iguchi@tahoo.org> and Mr. Anonymous
* for analyzing GPIO of MPG160.
*
*****************************************************************************
*
* GPIO assignment of Avermedia M179 (per information direct from AVerMedia)
*
* bit 15 14 13 12 | 11 10 9 8 | 7 6 5 4 | 3 2 1 0
* OUTPUT IN0 AM0 IN1 AM1 AM2 IN2 BR0 BR1
* INPUT
*
* IN* : Input selection
* IN0 IN1 IN2
* * 1 * Mute
* 0 0 0 Line-In
* 1 0 0 TV Tuner Audio
* 0 0 1 FM Audio
* 1 0 1 Mute
*
* AM* : Audio Mode
* AM0 AM1 AM2
* 0 0 0 TV Tuner Audio: L_OUT=(L+R)/2, R_OUT=SAP
* 0 0 1 TV Tuner Audio: L_OUT=R_OUT=SAP (SAP)
* 0 1 0 TV Tuner Audio: L_OUT=L, R_OUT=R (stereo)
* 0 1 1 TV Tuner Audio: mute
* 1 * * TV Tuner Audio: L_OUT=R_OUT=(L+R)/2 (mono)
*
* BR* : Audio Sample Rate (BR stands for bitrate for some reason)
* BR0 BR1
* 0 0 32 kHz
* 0 1 44.1 kHz
* 1 0 48 kHz
*
* DM* : Detected tuner audio Mode
* Unknown currently
*
* Special thanks to AVerMedia Technologies, Inc. and Jiun-Kuei Jung at
* AVerMedia for providing the GPIO information used to add support
* for the M179 cards.
*/
/********************* GPIO stuffs *********************/
/* GPIO registers */
#define IVTV_REG_GPIO_IN 0x9008
#define IVTV_REG_GPIO_OUT 0x900c
#define IVTV_REG_GPIO_DIR 0x9020
void ivtv_reset_ir_gpio(struct ivtv *itv)
{
int curdir, curout;
if (itv->card->type != IVTV_CARD_PVR_150)
return;
IVTV_DEBUG_INFO("Resetting PVR150 IR\n");
curout = read_reg(IVTV_REG_GPIO_OUT);
curdir = read_reg(IVTV_REG_GPIO_DIR);
curdir |= 0x80;
write_reg(curdir, IVTV_REG_GPIO_DIR);
curout = (curout & ~0xF) | 1;
write_reg(curout, IVTV_REG_GPIO_OUT);
/* We could use something else for smaller time */
schedule_timeout_interruptible(msecs_to_jiffies(1));
curout |= 2;
write_reg(curout, IVTV_REG_GPIO_OUT);
curdir &= ~0x80;
write_reg(curdir, IVTV_REG_GPIO_DIR);
}
/* Xceive tuner reset function */
int ivtv_reset_tuner_gpio(void *dev, int component, int cmd, int value)
{
struct i2c_algo_bit_data *algo = dev;
struct ivtv *itv = algo->data;
u32 curout;
if (cmd != XC2028_TUNER_RESET)
return 0;
IVTV_DEBUG_INFO("Resetting tuner\n");
curout = read_reg(IVTV_REG_GPIO_OUT);
curout &= ~(1 << itv->card->xceive_pin);
write_reg(curout, IVTV_REG_GPIO_OUT);
schedule_timeout_interruptible(msecs_to_jiffies(1));
curout |= 1 << itv->card->xceive_pin;
write_reg(curout, IVTV_REG_GPIO_OUT);
schedule_timeout_interruptible(msecs_to_jiffies(1));
return 0;
}
static inline struct ivtv *sd_to_ivtv(struct v4l2_subdev *sd)
{
return container_of(sd, struct ivtv, sd_gpio);
}
static inline struct v4l2_subdev *to_sd(struct v4l2_ctrl *ctrl)
{
return &container_of(ctrl->handler, struct ivtv, hdl_gpio)->sd_gpio;
}
static int subdev_s_clock_freq(struct v4l2_subdev *sd, u32 freq)
{
struct ivtv *itv = sd_to_ivtv(sd);
u16 mask, data;
mask = itv->card->gpio_audio_freq.mask;
switch (freq) {
case 32000:
data = itv->card->gpio_audio_freq.f32000;
break;
case 44100:
data = itv->card->gpio_audio_freq.f44100;
break;
case 48000:
default:
data = itv->card->gpio_audio_freq.f48000;
break;
}
if (mask)
write_reg((read_reg(IVTV_REG_GPIO_OUT) & ~mask) | (data & mask), IVTV_REG_GPIO_OUT);
return 0;
}
static int subdev_g_tuner(struct v4l2_subdev *sd, struct v4l2_tuner *vt)
{
struct ivtv *itv = sd_to_ivtv(sd);
u16 mask;
mask = itv->card->gpio_audio_detect.mask;
if (mask == 0 || (read_reg(IVTV_REG_GPIO_IN) & mask))
vt->rxsubchans = V4L2_TUNER_SUB_STEREO |
V4L2_TUNER_SUB_LANG1 | V4L2_TUNER_SUB_LANG2;
else
vt->rxsubchans = V4L2_TUNER_SUB_MONO;
return 0;
}
static int subdev_s_tuner(struct v4l2_subdev *sd, const struct v4l2_tuner *vt)
{
struct ivtv *itv = sd_to_ivtv(sd);
u16 mask, data;
mask = itv->card->gpio_audio_mode.mask;
switch (vt->audmode) {
case V4L2_TUNER_MODE_LANG1:
data = itv->card->gpio_audio_mode.lang1;
break;
case V4L2_TUNER_MODE_LANG2:
data = itv->card->gpio_audio_mode.lang2;
break;
case V4L2_TUNER_MODE_MONO:
data = itv->card->gpio_audio_mode.mono;
break;
case V4L2_TUNER_MODE_STEREO:
case V4L2_TUNER_MODE_LANG1_LANG2:
default:
data = itv->card->gpio_audio_mode.stereo;
break;
}
if (mask)
write_reg((read_reg(IVTV_REG_GPIO_OUT) & ~mask) | (data & mask), IVTV_REG_GPIO_OUT);
return 0;
}
static int subdev_s_radio(struct v4l2_subdev *sd)
{
struct ivtv *itv = sd_to_ivtv(sd);
u16 mask, data;
mask = itv->card->gpio_audio_input.mask;
data = itv->card->gpio_audio_input.radio;
if (mask)
write_reg((read_reg(IVTV_REG_GPIO_OUT) & ~mask) | (data & mask), IVTV_REG_GPIO_OUT);
return 0;
}
static int subdev_s_audio_routing(struct v4l2_subdev *sd,
u32 input, u32 output, u32 config)
{
struct ivtv *itv = sd_to_ivtv(sd);
u16 mask, data;
if (input > 2)
return -EINVAL;
mask = itv->card->gpio_audio_input.mask;
switch (input) {
case 0:
data = itv->card->gpio_audio_input.tuner;
break;
case 1:
data = itv->card->gpio_audio_input.linein;
break;
case 2:
default:
data = itv->card->gpio_audio_input.radio;
break;
}
if (mask)
write_reg((read_reg(IVTV_REG_GPIO_OUT) & ~mask) | (data & mask), IVTV_REG_GPIO_OUT);
return 0;
}
static int subdev_s_ctrl(struct v4l2_ctrl *ctrl)
{
struct v4l2_subdev *sd = to_sd(ctrl);
struct ivtv *itv = sd_to_ivtv(sd);
u16 mask, data;
switch (ctrl->id) {
case V4L2_CID_AUDIO_MUTE:
mask = itv->card->gpio_audio_mute.mask;
data = ctrl->val ? itv->card->gpio_audio_mute.mute : 0;
if (mask)
write_reg((read_reg(IVTV_REG_GPIO_OUT) & ~mask) |
(data & mask), IVTV_REG_GPIO_OUT);
return 0;
}
return -EINVAL;
}
static int subdev_log_status(struct v4l2_subdev *sd)
{
struct ivtv *itv = sd_to_ivtv(sd);
IVTV_INFO("GPIO status: DIR=0x%04x OUT=0x%04x IN=0x%04x\n",
read_reg(IVTV_REG_GPIO_DIR), read_reg(IVTV_REG_GPIO_OUT),
read_reg(IVTV_REG_GPIO_IN));
v4l2_ctrl_handler_log_status(&itv->hdl_gpio, sd->name);
return 0;
}
static int subdev_s_video_routing(struct v4l2_subdev *sd,
u32 input, u32 output, u32 config)
{
struct ivtv *itv = sd_to_ivtv(sd);
u16 mask, data;
if (input > 2) /* 0:Tuner 1:Composite 2:S-Video */
return -EINVAL;
mask = itv->card->gpio_video_input.mask;
if (input == 0)
data = itv->card->gpio_video_input.tuner;
else if (input == 1)
data = itv->card->gpio_video_input.composite;
else
data = itv->card->gpio_video_input.svideo;
if (mask)
write_reg((read_reg(IVTV_REG_GPIO_OUT) & ~mask) | (data & mask), IVTV_REG_GPIO_OUT);
return 0;
}
static const struct v4l2_ctrl_ops gpio_ctrl_ops = {
.s_ctrl = subdev_s_ctrl,
};
static const struct v4l2_subdev_core_ops subdev_core_ops = {
.log_status = subdev_log_status,
.g_ext_ctrls = v4l2_subdev_g_ext_ctrls,
.try_ext_ctrls = v4l2_subdev_try_ext_ctrls,
.s_ext_ctrls = v4l2_subdev_s_ext_ctrls,
.g_ctrl = v4l2_subdev_g_ctrl,
.s_ctrl = v4l2_subdev_s_ctrl,
.queryctrl = v4l2_subdev_queryctrl,
.querymenu = v4l2_subdev_querymenu,
};
static const struct v4l2_subdev_tuner_ops subdev_tuner_ops = {
.s_radio = subdev_s_radio,
.g_tuner = subdev_g_tuner,
.s_tuner = subdev_s_tuner,
};
static const struct v4l2_subdev_audio_ops subdev_audio_ops = {
.s_clock_freq = subdev_s_clock_freq,
.s_routing = subdev_s_audio_routing,
};
static const struct v4l2_subdev_video_ops subdev_video_ops = {
.s_routing = subdev_s_video_routing,
};
static const struct v4l2_subdev_ops subdev_ops = {
.core = &subdev_core_ops,
.tuner = &subdev_tuner_ops,
.audio = &subdev_audio_ops,
.video = &subdev_video_ops,
};
int ivtv_gpio_init(struct ivtv *itv)
{
u16 pin = 0;
if (itv->card->xceive_pin)
pin = 1 << itv->card->xceive_pin;
if ((itv->card->gpio_init.direction | pin) == 0)
return 0;
IVTV_DEBUG_INFO("GPIO initial dir: %08x out: %08x\n",
read_reg(IVTV_REG_GPIO_DIR), read_reg(IVTV_REG_GPIO_OUT));
/* init output data then direction */
write_reg(itv->card->gpio_init.initial_value | pin, IVTV_REG_GPIO_OUT);
write_reg(itv->card->gpio_init.direction | pin, IVTV_REG_GPIO_DIR);
v4l2_subdev_init(&itv->sd_gpio, &subdev_ops);
snprintf(itv->sd_gpio.name, sizeof(itv->sd_gpio.name), "%s-gpio", itv->v4l2_dev.name);
itv->sd_gpio.grp_id = IVTV_HW_GPIO;
v4l2_ctrl_handler_init(&itv->hdl_gpio, 1);
v4l2_ctrl_new_std(&itv->hdl_gpio, &gpio_ctrl_ops,
V4L2_CID_AUDIO_MUTE, 0, 1, 1, 0);
if (itv->hdl_gpio.error)
return itv->hdl_gpio.error;
itv->sd_gpio.ctrl_handler = &itv->hdl_gpio;
v4l2_ctrl_handler_setup(&itv->hdl_gpio);
return v4l2_device_register_subdev(&itv->v4l2_dev, &itv->sd_gpio);
}

29
drivers/media/pci/ivtv/ivtv-gpio.h Normal file
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/*
gpio functions.
Copyright (C) 2004 Chris Kennedy <c@groovy.org>
Copyright (C) 2005-2007 Hans Verkuil <hverkuil@xs4all.nl>
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 IVTV_GPIO_H
#define IVTV_GPIO_H
/* GPIO stuff */
int ivtv_gpio_init(struct ivtv *itv);
void ivtv_reset_ir_gpio(struct ivtv *itv);
int ivtv_reset_tuner_gpio(void *dev, int component, int cmd, int value);
#endif

754
drivers/media/pci/ivtv/ivtv-i2c.c Normal file
View File

@@ -0,0 +1,754 @@
/*
I2C functions
Copyright (C) 2003-2004 Kevin Thayer <nufan_wfk at yahoo.com>
Copyright (C) 2005-2007 Hans Verkuil <hverkuil@xs4all.nl>
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
*/
/*
This file includes an i2c implementation that was reverse engineered
from the Hauppauge windows driver. Older ivtv versions used i2c-algo-bit,
which whilst fine under most circumstances, had trouble with the Zilog
CPU on the PVR-150 which handles IR functions (occasional inability to
communicate with the chip until it was reset) and also with the i2c
bus being completely unreachable when multiple PVR cards were present.
The implementation is very similar to i2c-algo-bit, but there are enough
subtle differences that the two are hard to merge. The general strategy
employed by i2c-algo-bit is to use udelay() to implement the timing
when putting out bits on the scl/sda lines. The general strategy taken
here is to poll the lines for state changes (see ivtv_waitscl and
ivtv_waitsda). In addition there are small delays at various locations
which poll the SCL line 5 times (ivtv_scldelay). I would guess that
since this is memory mapped I/O that the length of those delays is tied
to the PCI bus clock. There is some extra code to do with recovery
and retries. Since it is not known what causes the actual i2c problems
in the first place, the only goal if one was to attempt to use
i2c-algo-bit would be to try to make it follow the same code path.
This would be a lot of work, and I'm also not convinced that it would
provide a generic benefit to i2c-algo-bit. Therefore consider this
an engineering solution -- not pretty, but it works.
Some more general comments about what we are doing:
The i2c bus is a 2 wire serial bus, with clock (SCL) and data (SDA)
lines. To communicate on the bus (as a master, we don't act as a slave),
we first initiate a start condition (ivtv_start). We then write the
address of the device that we want to communicate with, along with a flag
that indicates whether this is a read or a write. The slave then issues
an ACK signal (ivtv_ack), which tells us that it is ready for reading /
writing. We then proceed with reading or writing (ivtv_read/ivtv_write),
and finally issue a stop condition (ivtv_stop) to make the bus available
to other masters.
There is an additional form of transaction where a write may be
immediately followed by a read. In this case, there is no intervening
stop condition. (Only the msp3400 chip uses this method of data transfer).
*/
#include "ivtv-driver.h"
#include "ivtv-cards.h"
#include "ivtv-gpio.h"
#include "ivtv-i2c.h"
#include <media/cx25840.h>
/* i2c implementation for cx23415/6 chip, ivtv project.
* Author: Kevin Thayer (nufan_wfk at yahoo.com)
*/
/* i2c stuff */
#define IVTV_REG_I2C_SETSCL_OFFSET 0x7000
#define IVTV_REG_I2C_SETSDA_OFFSET 0x7004
#define IVTV_REG_I2C_GETSCL_OFFSET 0x7008
#define IVTV_REG_I2C_GETSDA_OFFSET 0x700c
#define IVTV_CS53L32A_I2C_ADDR 0x11
#define IVTV_M52790_I2C_ADDR 0x48
#define IVTV_CX25840_I2C_ADDR 0x44
#define IVTV_SAA7115_I2C_ADDR 0x21
#define IVTV_SAA7127_I2C_ADDR 0x44
#define IVTV_SAA717x_I2C_ADDR 0x21
#define IVTV_MSP3400_I2C_ADDR 0x40
#define IVTV_HAUPPAUGE_I2C_ADDR 0x50
#define IVTV_WM8739_I2C_ADDR 0x1a
#define IVTV_WM8775_I2C_ADDR 0x1b
#define IVTV_TEA5767_I2C_ADDR 0x60
#define IVTV_UPD64031A_I2C_ADDR 0x12
#define IVTV_UPD64083_I2C_ADDR 0x5c
#define IVTV_VP27SMPX_I2C_ADDR 0x5b
#define IVTV_M52790_I2C_ADDR 0x48
#define IVTV_AVERMEDIA_IR_RX_I2C_ADDR 0x40
#define IVTV_HAUP_EXT_IR_RX_I2C_ADDR 0x1a
#define IVTV_HAUP_INT_IR_RX_I2C_ADDR 0x18
#define IVTV_Z8F0811_IR_TX_I2C_ADDR 0x70
#define IVTV_Z8F0811_IR_RX_I2C_ADDR 0x71
#define IVTV_ADAPTEC_IR_ADDR 0x6b
/* This array should match the IVTV_HW_ defines */
static const u8 hw_addrs[] = {
IVTV_CX25840_I2C_ADDR,
IVTV_SAA7115_I2C_ADDR,
IVTV_SAA7127_I2C_ADDR,
IVTV_MSP3400_I2C_ADDR,
0,
IVTV_WM8775_I2C_ADDR,
IVTV_CS53L32A_I2C_ADDR,
0,
IVTV_SAA7115_I2C_ADDR,
IVTV_UPD64031A_I2C_ADDR,
IVTV_UPD64083_I2C_ADDR,
IVTV_SAA717x_I2C_ADDR,
IVTV_WM8739_I2C_ADDR,
IVTV_VP27SMPX_I2C_ADDR,
IVTV_M52790_I2C_ADDR,
0, /* IVTV_HW_GPIO dummy driver ID */
IVTV_AVERMEDIA_IR_RX_I2C_ADDR, /* IVTV_HW_I2C_IR_RX_AVER */
IVTV_HAUP_EXT_IR_RX_I2C_ADDR, /* IVTV_HW_I2C_IR_RX_HAUP_EXT */
IVTV_HAUP_INT_IR_RX_I2C_ADDR, /* IVTV_HW_I2C_IR_RX_HAUP_INT */
IVTV_Z8F0811_IR_TX_I2C_ADDR, /* IVTV_HW_Z8F0811_IR_TX_HAUP */
IVTV_Z8F0811_IR_RX_I2C_ADDR, /* IVTV_HW_Z8F0811_IR_RX_HAUP */
IVTV_ADAPTEC_IR_ADDR, /* IVTV_HW_I2C_IR_RX_ADAPTEC */
};
/* This array should match the IVTV_HW_ defines */
static const char * const hw_devicenames[] = {
"cx25840",
"saa7115",
"saa7127_auto", /* saa7127 or saa7129 */
"msp3400",
"tuner",
"wm8775",
"cs53l32a",
"tveeprom",
"saa7114",
"upd64031a",
"upd64083",
"saa717x",
"wm8739",
"vp27smpx",
"m52790",
"gpio",
"ir_video", /* IVTV_HW_I2C_IR_RX_AVER */
"ir_video", /* IVTV_HW_I2C_IR_RX_HAUP_EXT */
"ir_video", /* IVTV_HW_I2C_IR_RX_HAUP_INT */
"ir_tx_z8f0811_haup", /* IVTV_HW_Z8F0811_IR_TX_HAUP */
"ir_rx_z8f0811_haup", /* IVTV_HW_Z8F0811_IR_RX_HAUP */
"ir_video", /* IVTV_HW_I2C_IR_RX_ADAPTEC */
};
static int get_key_adaptec(struct IR_i2c *ir, u32 *ir_key, u32 *ir_raw)
{
unsigned char keybuf[4];
keybuf[0] = 0x00;
i2c_master_send(ir->c, keybuf, 1);
/* poll IR chip */
if (i2c_master_recv(ir->c, keybuf, sizeof(keybuf)) != sizeof(keybuf)) {
return 0;
}
/* key pressed ? */
if (keybuf[2] == 0xff)
return 0;
/* remove repeat bit */
keybuf[2] &= 0x7f;
keybuf[3] |= 0x80;
*ir_key = keybuf[3] | keybuf[2] << 8 | keybuf[1] << 16 |keybuf[0] << 24;
*ir_raw = *ir_key;
return 1;
}
static int ivtv_i2c_new_ir(struct ivtv *itv, u32 hw, const char *type, u8 addr)
{
struct i2c_board_info info;
struct i2c_adapter *adap = &itv->i2c_adap;
struct IR_i2c_init_data *init_data = &itv->ir_i2c_init_data;
unsigned short addr_list[2] = { addr, I2C_CLIENT_END };
/* Only allow one IR transmitter to be registered per board */
if (hw & IVTV_HW_IR_TX_ANY) {
if (itv->hw_flags & IVTV_HW_IR_TX_ANY)
return -1;
memset(&info, 0, sizeof(struct i2c_board_info));
strlcpy(info.type, type, I2C_NAME_SIZE);
return i2c_new_probed_device(adap, &info, addr_list, NULL)
== NULL ? -1 : 0;
}
/* Only allow one IR receiver to be registered per board */
if (itv->hw_flags & IVTV_HW_IR_RX_ANY)
return -1;
/* Our default information for ir-kbd-i2c.c to use */
switch (hw) {
case IVTV_HW_I2C_IR_RX_AVER:
init_data->ir_codes = RC_MAP_AVERMEDIA_CARDBUS;
init_data->internal_get_key_func =
IR_KBD_GET_KEY_AVERMEDIA_CARDBUS;
init_data->type = RC_BIT_OTHER;
init_data->name = "AVerMedia AVerTV card";
break;
case IVTV_HW_I2C_IR_RX_HAUP_EXT:
case IVTV_HW_I2C_IR_RX_HAUP_INT:
init_data->ir_codes = RC_MAP_HAUPPAUGE;
init_data->internal_get_key_func = IR_KBD_GET_KEY_HAUP;
init_data->type = RC_BIT_RC5;
init_data->name = itv->card_name;
break;
case IVTV_HW_Z8F0811_IR_RX_HAUP:
/* Default to grey remote */
init_data->ir_codes = RC_MAP_HAUPPAUGE;
init_data->internal_get_key_func = IR_KBD_GET_KEY_HAUP_XVR;
init_data->type = RC_BIT_RC5;
init_data->name = itv->card_name;
break;
case IVTV_HW_I2C_IR_RX_ADAPTEC:
init_data->get_key = get_key_adaptec;
init_data->name = itv->card_name;
/* FIXME: The protocol and RC_MAP needs to be corrected */
init_data->ir_codes = RC_MAP_EMPTY;
init_data->type = RC_BIT_UNKNOWN;
break;
}
memset(&info, 0, sizeof(struct i2c_board_info));
info.platform_data = init_data;
strlcpy(info.type, type, I2C_NAME_SIZE);
return i2c_new_probed_device(adap, &info, addr_list, NULL) == NULL ?
-1 : 0;
}
/* Instantiate the IR receiver device using probing -- undesirable */
struct i2c_client *ivtv_i2c_new_ir_legacy(struct ivtv *itv)
{
struct i2c_board_info info;
/*
* The external IR receiver is at i2c address 0x34.
* The internal IR receiver is at i2c address 0x30.
*
* In theory, both can be fitted, and Hauppauge suggests an external
* overrides an internal. That's why we probe 0x1a (~0x34) first. CB
*
* Some of these addresses we probe may collide with other i2c address
* allocations, so this function must be called after all other i2c
* devices we care about are registered.
*/
const unsigned short addr_list[] = {
0x1a, /* Hauppauge IR external - collides with WM8739 */
0x18, /* Hauppauge IR internal */
I2C_CLIENT_END
};
memset(&info, 0, sizeof(struct i2c_board_info));
strlcpy(info.type, "ir_video", I2C_NAME_SIZE);
return i2c_new_probed_device(&itv->i2c_adap, &info, addr_list, NULL);
}
int ivtv_i2c_register(struct ivtv *itv, unsigned idx)
{
struct v4l2_subdev *sd;
struct i2c_adapter *adap = &itv->i2c_adap;
const char *type = hw_devicenames[idx];
u32 hw = 1 << idx;
if (hw == IVTV_HW_TUNER) {
/* special tuner handling */
sd = v4l2_i2c_new_subdev(&itv->v4l2_dev, adap, type, 0,
itv->card_i2c->radio);
if (sd)
sd->grp_id = 1 << idx;
sd = v4l2_i2c_new_subdev(&itv->v4l2_dev, adap, type, 0,
itv->card_i2c->demod);
if (sd)
sd->grp_id = 1 << idx;
sd = v4l2_i2c_new_subdev(&itv->v4l2_dev, adap, type, 0,
itv->card_i2c->tv);
if (sd)
sd->grp_id = 1 << idx;
return sd ? 0 : -1;
}
if (hw & IVTV_HW_IR_ANY)
return ivtv_i2c_new_ir(itv, hw, type, hw_addrs[idx]);
/* Is it not an I2C device or one we do not wish to register? */
if (!hw_addrs[idx])
return -1;
/* It's an I2C device other than an analog tuner or IR chip */
if (hw == IVTV_HW_UPD64031A || hw == IVTV_HW_UPD6408X) {
sd = v4l2_i2c_new_subdev(&itv->v4l2_dev,
adap, type, 0, I2C_ADDRS(hw_addrs[idx]));
} else if (hw == IVTV_HW_CX25840) {
struct cx25840_platform_data pdata;
struct i2c_board_info cx25840_info = {
.type = "cx25840",
.addr = hw_addrs[idx],
.platform_data = &pdata,
};
pdata.pvr150_workaround = itv->pvr150_workaround;
sd = v4l2_i2c_new_subdev_board(&itv->v4l2_dev, adap,
&cx25840_info, NULL);
} else {
sd = v4l2_i2c_new_subdev(&itv->v4l2_dev,
adap, type, hw_addrs[idx], NULL);
}
if (sd)
sd->grp_id = 1 << idx;
return sd ? 0 : -1;
}
struct v4l2_subdev *ivtv_find_hw(struct ivtv *itv, u32 hw)
{
struct v4l2_subdev *result = NULL;
struct v4l2_subdev *sd;
spin_lock(&itv->v4l2_dev.lock);
v4l2_device_for_each_subdev(sd, &itv->v4l2_dev) {
if (sd->grp_id == hw) {
result = sd;
break;
}
}
spin_unlock(&itv->v4l2_dev.lock);
return result;
}
/* Set the serial clock line to the desired state */
static void ivtv_setscl(struct ivtv *itv, int state)
{
/* write them out */
/* write bits are inverted */
write_reg(~state, IVTV_REG_I2C_SETSCL_OFFSET);
}
/* Set the serial data line to the desired state */
static void ivtv_setsda(struct ivtv *itv, int state)
{
/* write them out */
/* write bits are inverted */
write_reg(~state & 1, IVTV_REG_I2C_SETSDA_OFFSET);
}
/* Read the serial clock line */
static int ivtv_getscl(struct ivtv *itv)
{
return read_reg(IVTV_REG_I2C_GETSCL_OFFSET) & 1;
}
/* Read the serial data line */
static int ivtv_getsda(struct ivtv *itv)
{
return read_reg(IVTV_REG_I2C_GETSDA_OFFSET) & 1;
}
/* Implement a short delay by polling the serial clock line */
static void ivtv_scldelay(struct ivtv *itv)
{
int i;
for (i = 0; i < 5; ++i)
ivtv_getscl(itv);
}
/* Wait for the serial clock line to become set to a specific value */
static int ivtv_waitscl(struct ivtv *itv, int val)
{
int i;
ivtv_scldelay(itv);
for (i = 0; i < 1000; ++i) {
if (ivtv_getscl(itv) == val)
return 1;
}
return 0;
}
/* Wait for the serial data line to become set to a specific value */
static int ivtv_waitsda(struct ivtv *itv, int val)
{
int i;
ivtv_scldelay(itv);
for (i = 0; i < 1000; ++i) {
if (ivtv_getsda(itv) == val)
return 1;
}
return 0;
}
/* Wait for the slave to issue an ACK */
static int ivtv_ack(struct ivtv *itv)
{
int ret = 0;
if (ivtv_getscl(itv) == 1) {
IVTV_DEBUG_HI_I2C("SCL was high starting an ack\n");
ivtv_setscl(itv, 0);
if (!ivtv_waitscl(itv, 0)) {
IVTV_DEBUG_I2C("Could not set SCL low starting an ack\n");
return -EREMOTEIO;
}
}
ivtv_setsda(itv, 1);
ivtv_scldelay(itv);
ivtv_setscl(itv, 1);
if (!ivtv_waitsda(itv, 0)) {
IVTV_DEBUG_I2C("Slave did not ack\n");
ret = -EREMOTEIO;
}
ivtv_setscl(itv, 0);
if (!ivtv_waitscl(itv, 0)) {
IVTV_DEBUG_I2C("Failed to set SCL low after ACK\n");
ret = -EREMOTEIO;
}
return ret;
}
/* Write a single byte to the i2c bus and wait for the slave to ACK */
static int ivtv_sendbyte(struct ivtv *itv, unsigned char byte)
{
int i, bit;
IVTV_DEBUG_HI_I2C("write %x\n",byte);
for (i = 0; i < 8; ++i, byte<<=1) {
ivtv_setscl(itv, 0);
if (!ivtv_waitscl(itv, 0)) {
IVTV_DEBUG_I2C("Error setting SCL low\n");
return -EREMOTEIO;
}
bit = (byte>>7)&1;
ivtv_setsda(itv, bit);
if (!ivtv_waitsda(itv, bit)) {
IVTV_DEBUG_I2C("Error setting SDA\n");
return -EREMOTEIO;
}
ivtv_setscl(itv, 1);
if (!ivtv_waitscl(itv, 1)) {
IVTV_DEBUG_I2C("Slave not ready for bit\n");
return -EREMOTEIO;
}
}
ivtv_setscl(itv, 0);
if (!ivtv_waitscl(itv, 0)) {
IVTV_DEBUG_I2C("Error setting SCL low\n");
return -EREMOTEIO;
}
return ivtv_ack(itv);
}
/* Read a byte from the i2c bus and send a NACK if applicable (i.e. for the
final byte) */
static int ivtv_readbyte(struct ivtv *itv, unsigned char *byte, int nack)
{
int i;
*byte = 0;
ivtv_setsda(itv, 1);
ivtv_scldelay(itv);
for (i = 0; i < 8; ++i) {
ivtv_setscl(itv, 0);
ivtv_scldelay(itv);
ivtv_setscl(itv, 1);
if (!ivtv_waitscl(itv, 1)) {
IVTV_DEBUG_I2C("Error setting SCL high\n");
return -EREMOTEIO;
}
*byte = ((*byte)<<1)|ivtv_getsda(itv);
}
ivtv_setscl(itv, 0);
ivtv_scldelay(itv);
ivtv_setsda(itv, nack);
ivtv_scldelay(itv);
ivtv_setscl(itv, 1);
ivtv_scldelay(itv);
ivtv_setscl(itv, 0);
ivtv_scldelay(itv);
IVTV_DEBUG_HI_I2C("read %x\n",*byte);
return 0;
}
/* Issue a start condition on the i2c bus to alert slaves to prepare for
an address write */
static int ivtv_start(struct ivtv *itv)
{
int sda;
sda = ivtv_getsda(itv);
if (sda != 1) {
IVTV_DEBUG_HI_I2C("SDA was low at start\n");
ivtv_setsda(itv, 1);
if (!ivtv_waitsda(itv, 1)) {
IVTV_DEBUG_I2C("SDA stuck low\n");
return -EREMOTEIO;
}
}
if (ivtv_getscl(itv) != 1) {
ivtv_setscl(itv, 1);
if (!ivtv_waitscl(itv, 1)) {
IVTV_DEBUG_I2C("SCL stuck low at start\n");
return -EREMOTEIO;
}
}
ivtv_setsda(itv, 0);
ivtv_scldelay(itv);
return 0;
}
/* Issue a stop condition on the i2c bus to release it */
static int ivtv_stop(struct ivtv *itv)
{
int i;
if (ivtv_getscl(itv) != 0) {
IVTV_DEBUG_HI_I2C("SCL not low when stopping\n");
ivtv_setscl(itv, 0);
if (!ivtv_waitscl(itv, 0)) {
IVTV_DEBUG_I2C("SCL could not be set low\n");
}
}
ivtv_setsda(itv, 0);
ivtv_scldelay(itv);
ivtv_setscl(itv, 1);
if (!ivtv_waitscl(itv, 1)) {
IVTV_DEBUG_I2C("SCL could not be set high\n");
return -EREMOTEIO;
}
ivtv_scldelay(itv);
ivtv_setsda(itv, 1);
if (!ivtv_waitsda(itv, 1)) {
IVTV_DEBUG_I2C("resetting I2C\n");
for (i = 0; i < 16; ++i) {
ivtv_setscl(itv, 0);
ivtv_scldelay(itv);
ivtv_setscl(itv, 1);
ivtv_scldelay(itv);
ivtv_setsda(itv, 1);
}
ivtv_waitsda(itv, 1);
return -EREMOTEIO;
}
return 0;
}
/* Write a message to the given i2c slave. do_stop may be 0 to prevent
issuing the i2c stop condition (when following with a read) */
static int ivtv_write(struct ivtv *itv, unsigned char addr, unsigned char *data, u32 len, int do_stop)
{
int retry, ret = -EREMOTEIO;
u32 i;
for (retry = 0; ret != 0 && retry < 8; ++retry) {
ret = ivtv_start(itv);
if (ret == 0) {
ret = ivtv_sendbyte(itv, addr<<1);
for (i = 0; ret == 0 && i < len; ++i)
ret = ivtv_sendbyte(itv, data[i]);
}
if (ret != 0 || do_stop) {
ivtv_stop(itv);
}
}
if (ret)
IVTV_DEBUG_I2C("i2c write to %x failed\n", addr);
return ret;
}
/* Read data from the given i2c slave. A stop condition is always issued. */
static int ivtv_read(struct ivtv *itv, unsigned char addr, unsigned char *data, u32 len)
{
int retry, ret = -EREMOTEIO;
u32 i;
for (retry = 0; ret != 0 && retry < 8; ++retry) {
ret = ivtv_start(itv);
if (ret == 0)
ret = ivtv_sendbyte(itv, (addr << 1) | 1);
for (i = 0; ret == 0 && i < len; ++i) {
ret = ivtv_readbyte(itv, &data[i], i == len - 1);
}
ivtv_stop(itv);
}
if (ret)
IVTV_DEBUG_I2C("i2c read from %x failed\n", addr);
return ret;
}
/* Kernel i2c transfer implementation. Takes a number of messages to be read
or written. If a read follows a write, this will occur without an
intervening stop condition */
static int ivtv_xfer(struct i2c_adapter *i2c_adap, struct i2c_msg *msgs, int num)
{
struct v4l2_device *v4l2_dev = i2c_get_adapdata(i2c_adap);
struct ivtv *itv = to_ivtv(v4l2_dev);
int retval;
int i;
mutex_lock(&itv->i2c_bus_lock);
for (i = retval = 0; retval == 0 && i < num; i++) {
if (msgs[i].flags & I2C_M_RD)
retval = ivtv_read(itv, msgs[i].addr, msgs[i].buf, msgs[i].len);
else {
/* if followed by a read, don't stop */
int stop = !(i + 1 < num && msgs[i + 1].flags == I2C_M_RD);
retval = ivtv_write(itv, msgs[i].addr, msgs[i].buf, msgs[i].len, stop);
}
}
mutex_unlock(&itv->i2c_bus_lock);
return retval ? retval : num;
}
/* Kernel i2c capabilities */
static u32 ivtv_functionality(struct i2c_adapter *adap)
{
return I2C_FUNC_I2C | I2C_FUNC_SMBUS_EMUL;
}
static struct i2c_algorithm ivtv_algo = {
.master_xfer = ivtv_xfer,
.functionality = ivtv_functionality,
};
/* template for our-bit banger */
static struct i2c_adapter ivtv_i2c_adap_hw_template = {
.name = "ivtv i2c driver",
.algo = &ivtv_algo,
.algo_data = NULL, /* filled from template */
.owner = THIS_MODULE,
};
static void ivtv_setscl_old(void *data, int state)
{
struct ivtv *itv = (struct ivtv *)data;
if (state)
itv->i2c_state |= 0x01;
else
itv->i2c_state &= ~0x01;
/* write them out */
/* write bits are inverted */
write_reg(~itv->i2c_state, IVTV_REG_I2C_SETSCL_OFFSET);
}
static void ivtv_setsda_old(void *data, int state)
{
struct ivtv *itv = (struct ivtv *)data;
if (state)
itv->i2c_state |= 0x01;
else
itv->i2c_state &= ~0x01;
/* write them out */
/* write bits are inverted */
write_reg(~itv->i2c_state, IVTV_REG_I2C_SETSDA_OFFSET);
}
static int ivtv_getscl_old(void *data)
{
struct ivtv *itv = (struct ivtv *)data;
return read_reg(IVTV_REG_I2C_GETSCL_OFFSET) & 1;
}
static int ivtv_getsda_old(void *data)
{
struct ivtv *itv = (struct ivtv *)data;
return read_reg(IVTV_REG_I2C_GETSDA_OFFSET) & 1;
}
/* template for i2c-bit-algo */
static struct i2c_adapter ivtv_i2c_adap_template = {
.name = "ivtv i2c driver",
.algo = NULL, /* set by i2c-algo-bit */
.algo_data = NULL, /* filled from template */
.owner = THIS_MODULE,
};
#define IVTV_ALGO_BIT_TIMEOUT (2) /* seconds */
static const struct i2c_algo_bit_data ivtv_i2c_algo_template = {
.setsda = ivtv_setsda_old,
.setscl = ivtv_setscl_old,
.getsda = ivtv_getsda_old,
.getscl = ivtv_getscl_old,
.udelay = IVTV_DEFAULT_I2C_CLOCK_PERIOD / 2, /* microseconds */
.timeout = IVTV_ALGO_BIT_TIMEOUT * HZ, /* jiffies */
};
static struct i2c_client ivtv_i2c_client_template = {
.name = "ivtv internal",
};
/* init + register i2c adapter */
int init_ivtv_i2c(struct ivtv *itv)
{
int retval;
IVTV_DEBUG_I2C("i2c init\n");
/* Sanity checks for the I2C hardware arrays. They must be the
* same size.
*/
if (ARRAY_SIZE(hw_devicenames) != ARRAY_SIZE(hw_addrs)) {
IVTV_ERR("Mismatched I2C hardware arrays\n");
return -ENODEV;
}
if (itv->options.newi2c > 0) {
itv->i2c_adap = ivtv_i2c_adap_hw_template;
} else {
itv->i2c_adap = ivtv_i2c_adap_template;
itv->i2c_algo = ivtv_i2c_algo_template;
}
itv->i2c_algo.udelay = itv->options.i2c_clock_period / 2;
itv->i2c_algo.data = itv;
itv->i2c_adap.algo_data = &itv->i2c_algo;
sprintf(itv->i2c_adap.name + strlen(itv->i2c_adap.name), " #%d",
itv->instance);
i2c_set_adapdata(&itv->i2c_adap, &itv->v4l2_dev);
itv->i2c_client = ivtv_i2c_client_template;
itv->i2c_client.adapter = &itv->i2c_adap;
itv->i2c_adap.dev.parent = &itv->pdev->dev;
IVTV_DEBUG_I2C("setting scl and sda to 1\n");
ivtv_setscl(itv, 1);
ivtv_setsda(itv, 1);
if (itv->options.newi2c > 0)
retval = i2c_add_adapter(&itv->i2c_adap);
else
retval = i2c_bit_add_bus(&itv->i2c_adap);
return retval;
}
void exit_ivtv_i2c(struct ivtv *itv)
{
IVTV_DEBUG_I2C("i2c exit\n");
i2c_del_adapter(&itv->i2c_adap);
}

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drivers/media/pci/ivtv/ivtv-i2c.h Normal file
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/*
I2C functions
Copyright (C) 2003-2004 Kevin Thayer <nufan_wfk at yahoo.com>
Copyright (C) 2005-2007 Hans Verkuil <hverkuil@xs4all.nl>
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 IVTV_I2C_H
#define IVTV_I2C_H
struct i2c_client *ivtv_i2c_new_ir_legacy(struct ivtv *itv);
int ivtv_i2c_register(struct ivtv *itv, unsigned idx);
struct v4l2_subdev *ivtv_find_hw(struct ivtv *itv, u32 hw);
/* init + register i2c adapter */
int init_ivtv_i2c(struct ivtv *itv);
void exit_ivtv_i2c(struct ivtv *itv);
#endif

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drivers/media/pci/ivtv/ivtv-ioctl.c Normal file
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drivers/media/pci/ivtv/ivtv-ioctl.h Normal file
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/*
ioctl system call
Copyright (C) 2003-2004 Kevin Thayer <nufan_wfk at yahoo.com>
Copyright (C) 2005-2007 Hans Verkuil <hverkuil@xs4all.nl>
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 IVTV_IOCTL_H
#define IVTV_IOCTL_H
u16 ivtv_service2vbi(int type);
void ivtv_expand_service_set(struct v4l2_sliced_vbi_format *fmt, int is_pal);
u16 ivtv_get_service_set(struct v4l2_sliced_vbi_format *fmt);
void ivtv_set_osd_alpha(struct ivtv *itv);
int ivtv_set_speed(struct ivtv *itv, int speed);
void ivtv_set_funcs(struct video_device *vdev);
void ivtv_s_std_enc(struct ivtv *itv, v4l2_std_id std);
void ivtv_s_std_dec(struct ivtv *itv, v4l2_std_id std);
int ivtv_s_frequency(struct file *file, void *fh, const struct v4l2_frequency *vf);
int ivtv_s_input(struct file *file, void *fh, unsigned int inp);
#endif

1088
drivers/media/pci/ivtv/ivtv-irq.c Normal file
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/*
interrupt handling
Copyright (C) 2003-2004 Kevin Thayer <nufan_wfk at yahoo.com>
Copyright (C) 2004 Chris Kennedy <c@groovy.org>
Copyright (C) 2005-2007 Hans Verkuil <hverkuil@xs4all.nl>
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 IVTV_IRQ_H
#define IVTV_IRQ_H
#define IVTV_IRQ_ENC_START_CAP (0x1 << 31)
#define IVTV_IRQ_ENC_EOS (0x1 << 30)
#define IVTV_IRQ_ENC_VBI_CAP (0x1 << 29)
#define IVTV_IRQ_ENC_VIM_RST (0x1 << 28)
#define IVTV_IRQ_ENC_DMA_COMPLETE (0x1 << 27)
#define IVTV_IRQ_ENC_PIO_COMPLETE (0x1 << 25)
#define IVTV_IRQ_DEC_AUD_MODE_CHG (0x1 << 24)
#define IVTV_IRQ_DEC_DATA_REQ (0x1 << 22)
#define IVTV_IRQ_DEC_DMA_COMPLETE (0x1 << 20)
#define IVTV_IRQ_DEC_VBI_RE_INSERT (0x1 << 19)
#define IVTV_IRQ_DMA_ERR (0x1 << 18)
#define IVTV_IRQ_DMA_WRITE (0x1 << 17)
#define IVTV_IRQ_DMA_READ (0x1 << 16)
#define IVTV_IRQ_DEC_VSYNC (0x1 << 10)
/* IRQ Masks */
#define IVTV_IRQ_MASK_INIT (IVTV_IRQ_DMA_ERR|IVTV_IRQ_ENC_DMA_COMPLETE|\
IVTV_IRQ_DMA_READ|IVTV_IRQ_ENC_PIO_COMPLETE)
#define IVTV_IRQ_MASK_CAPTURE (IVTV_IRQ_ENC_START_CAP | IVTV_IRQ_ENC_EOS)
#define IVTV_IRQ_MASK_DECODE (IVTV_IRQ_DEC_DATA_REQ|IVTV_IRQ_DEC_AUD_MODE_CHG)
irqreturn_t ivtv_irq_handler(int irq, void *dev_id);
void ivtv_irq_work_handler(struct kthread_work *work);
void ivtv_dma_stream_dec_prepare(struct ivtv_stream *s, u32 offset, int lock);
void ivtv_unfinished_dma(unsigned long arg);
#endif

387
drivers/media/pci/ivtv/ivtv-mailbox.c Normal file
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/*
mailbox functions
Copyright (C) 2003-2004 Kevin Thayer <nufan_wfk at yahoo.com>
Copyright (C) 2004 Chris Kennedy <c@groovy.org>
Copyright (C) 2005-2007 Hans Verkuil <hverkuil@xs4all.nl>
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 <stdarg.h>
#include "ivtv-driver.h"
#include "ivtv-mailbox.h"
/* Firmware mailbox flags*/
#define IVTV_MBOX_FIRMWARE_DONE 0x00000004
#define IVTV_MBOX_DRIVER_DONE 0x00000002
#define IVTV_MBOX_DRIVER_BUSY 0x00000001
#define IVTV_MBOX_FREE 0x00000000
/* Firmware mailbox standard timeout */
#define IVTV_API_STD_TIMEOUT 0x02000000
#define API_CACHE (1 << 0) /* Allow the command to be stored in the cache */
#define API_RESULT (1 << 1) /* Allow 1 second for this cmd to end */
#define API_FAST_RESULT (3 << 1) /* Allow 0.1 second for this cmd to end */
#define API_DMA (1 << 3) /* DMA mailbox, has special handling */
#define API_HIGH_VOL (1 << 5) /* High volume command (i.e. called during encoding or decoding) */
#define API_NO_WAIT_MB (1 << 4) /* Command may not wait for a free mailbox */
#define API_NO_WAIT_RES (1 << 5) /* Command may not wait for the result */
#define API_NO_POLL (1 << 6) /* Avoid pointless polling */
struct ivtv_api_info {
int flags; /* Flags, see above */
const char *name; /* The name of the command */
};
#define API_ENTRY(x, f) [x] = { (f), #x }
static const struct ivtv_api_info api_info[256] = {
/* MPEG encoder API */
API_ENTRY(CX2341X_ENC_PING_FW, API_FAST_RESULT),
API_ENTRY(CX2341X_ENC_START_CAPTURE, API_RESULT | API_NO_POLL),
API_ENTRY(CX2341X_ENC_STOP_CAPTURE, API_RESULT),
API_ENTRY(CX2341X_ENC_SET_AUDIO_ID, API_CACHE),
API_ENTRY(CX2341X_ENC_SET_VIDEO_ID, API_CACHE),
API_ENTRY(CX2341X_ENC_SET_PCR_ID, API_CACHE),
API_ENTRY(CX2341X_ENC_SET_FRAME_RATE, API_CACHE),
API_ENTRY(CX2341X_ENC_SET_FRAME_SIZE, API_CACHE),
API_ENTRY(CX2341X_ENC_SET_BIT_RATE, API_CACHE),
API_ENTRY(CX2341X_ENC_SET_GOP_PROPERTIES, API_CACHE),
API_ENTRY(CX2341X_ENC_SET_ASPECT_RATIO, API_CACHE),
API_ENTRY(CX2341X_ENC_SET_DNR_FILTER_MODE, API_CACHE),
API_ENTRY(CX2341X_ENC_SET_DNR_FILTER_PROPS, API_CACHE),
API_ENTRY(CX2341X_ENC_SET_CORING_LEVELS, API_CACHE),
API_ENTRY(CX2341X_ENC_SET_SPATIAL_FILTER_TYPE, API_CACHE),
API_ENTRY(CX2341X_ENC_SET_VBI_LINE, API_RESULT),
API_ENTRY(CX2341X_ENC_SET_STREAM_TYPE, API_CACHE),
API_ENTRY(CX2341X_ENC_SET_OUTPUT_PORT, API_CACHE),
API_ENTRY(CX2341X_ENC_SET_AUDIO_PROPERTIES, API_CACHE),
API_ENTRY(CX2341X_ENC_HALT_FW, API_FAST_RESULT),
API_ENTRY(CX2341X_ENC_GET_VERSION, API_FAST_RESULT),
API_ENTRY(CX2341X_ENC_SET_GOP_CLOSURE, API_CACHE),
API_ENTRY(CX2341X_ENC_GET_SEQ_END, API_RESULT),
API_ENTRY(CX2341X_ENC_SET_PGM_INDEX_INFO, API_FAST_RESULT),
API_ENTRY(CX2341X_ENC_SET_VBI_CONFIG, API_RESULT),
API_ENTRY(CX2341X_ENC_SET_DMA_BLOCK_SIZE, API_CACHE),
API_ENTRY(CX2341X_ENC_GET_PREV_DMA_INFO_MB_10, API_FAST_RESULT),
API_ENTRY(CX2341X_ENC_GET_PREV_DMA_INFO_MB_9, API_FAST_RESULT),
API_ENTRY(CX2341X_ENC_SCHED_DMA_TO_HOST, API_DMA | API_HIGH_VOL),
API_ENTRY(CX2341X_ENC_INITIALIZE_INPUT, API_RESULT),
API_ENTRY(CX2341X_ENC_SET_FRAME_DROP_RATE, API_CACHE),
API_ENTRY(CX2341X_ENC_PAUSE_ENCODER, API_RESULT),
API_ENTRY(CX2341X_ENC_REFRESH_INPUT, API_NO_WAIT_MB | API_HIGH_VOL),
API_ENTRY(CX2341X_ENC_SET_COPYRIGHT, API_CACHE),
API_ENTRY(CX2341X_ENC_SET_EVENT_NOTIFICATION, API_RESULT),
API_ENTRY(CX2341X_ENC_SET_NUM_VSYNC_LINES, API_CACHE),
API_ENTRY(CX2341X_ENC_SET_PLACEHOLDER, API_CACHE),
API_ENTRY(CX2341X_ENC_MUTE_VIDEO, API_RESULT),
API_ENTRY(CX2341X_ENC_MUTE_AUDIO, API_RESULT),
API_ENTRY(CX2341X_ENC_SET_VERT_CROP_LINE, API_FAST_RESULT),
API_ENTRY(CX2341X_ENC_MISC, API_FAST_RESULT),
/* Obsolete PULLDOWN API command */
API_ENTRY(0xb1, API_CACHE),
/* MPEG decoder API */
API_ENTRY(CX2341X_DEC_PING_FW, API_FAST_RESULT),
API_ENTRY(CX2341X_DEC_START_PLAYBACK, API_RESULT | API_NO_POLL),
API_ENTRY(CX2341X_DEC_STOP_PLAYBACK, API_RESULT),
API_ENTRY(CX2341X_DEC_SET_PLAYBACK_SPEED, API_RESULT),
API_ENTRY(CX2341X_DEC_STEP_VIDEO, API_RESULT),
API_ENTRY(CX2341X_DEC_SET_DMA_BLOCK_SIZE, API_CACHE),
API_ENTRY(CX2341X_DEC_GET_XFER_INFO, API_FAST_RESULT),
API_ENTRY(CX2341X_DEC_GET_DMA_STATUS, API_FAST_RESULT),
API_ENTRY(CX2341X_DEC_SCHED_DMA_FROM_HOST, API_DMA | API_HIGH_VOL),
API_ENTRY(CX2341X_DEC_PAUSE_PLAYBACK, API_RESULT),
API_ENTRY(CX2341X_DEC_HALT_FW, API_FAST_RESULT),
API_ENTRY(CX2341X_DEC_SET_STANDARD, API_CACHE),
API_ENTRY(CX2341X_DEC_GET_VERSION, API_FAST_RESULT),
API_ENTRY(CX2341X_DEC_SET_STREAM_INPUT, API_CACHE),
API_ENTRY(CX2341X_DEC_GET_TIMING_INFO, API_RESULT /*| API_NO_WAIT_RES*/),
API_ENTRY(CX2341X_DEC_SET_AUDIO_MODE, API_CACHE),
API_ENTRY(CX2341X_DEC_SET_EVENT_NOTIFICATION, API_RESULT),
API_ENTRY(CX2341X_DEC_SET_DISPLAY_BUFFERS, API_CACHE),
API_ENTRY(CX2341X_DEC_EXTRACT_VBI, API_RESULT),
API_ENTRY(CX2341X_DEC_SET_DECODER_SOURCE, API_FAST_RESULT),
API_ENTRY(CX2341X_DEC_SET_PREBUFFERING, API_CACHE),
/* OSD API */
API_ENTRY(CX2341X_OSD_GET_FRAMEBUFFER, API_FAST_RESULT),
API_ENTRY(CX2341X_OSD_GET_PIXEL_FORMAT, API_FAST_RESULT),
API_ENTRY(CX2341X_OSD_SET_PIXEL_FORMAT, API_CACHE),
API_ENTRY(CX2341X_OSD_GET_STATE, API_FAST_RESULT),
API_ENTRY(CX2341X_OSD_SET_STATE, API_CACHE),
API_ENTRY(CX2341X_OSD_GET_OSD_COORDS, API_FAST_RESULT),
API_ENTRY(CX2341X_OSD_SET_OSD_COORDS, API_CACHE),
API_ENTRY(CX2341X_OSD_GET_SCREEN_COORDS, API_FAST_RESULT),
API_ENTRY(CX2341X_OSD_SET_SCREEN_COORDS, API_CACHE),
API_ENTRY(CX2341X_OSD_GET_GLOBAL_ALPHA, API_FAST_RESULT),
API_ENTRY(CX2341X_OSD_SET_GLOBAL_ALPHA, API_CACHE),
API_ENTRY(CX2341X_OSD_SET_BLEND_COORDS, API_CACHE),
API_ENTRY(CX2341X_OSD_GET_FLICKER_STATE, API_FAST_RESULT),
API_ENTRY(CX2341X_OSD_SET_FLICKER_STATE, API_CACHE),
API_ENTRY(CX2341X_OSD_BLT_COPY, API_RESULT),
API_ENTRY(CX2341X_OSD_BLT_FILL, API_RESULT),
API_ENTRY(CX2341X_OSD_BLT_TEXT, API_RESULT),
API_ENTRY(CX2341X_OSD_SET_FRAMEBUFFER_WINDOW, API_CACHE),
API_ENTRY(CX2341X_OSD_SET_CHROMA_KEY, API_CACHE),
API_ENTRY(CX2341X_OSD_GET_ALPHA_CONTENT_INDEX, API_FAST_RESULT),
API_ENTRY(CX2341X_OSD_SET_ALPHA_CONTENT_INDEX, API_CACHE)
};
static int try_mailbox(struct ivtv *itv, struct ivtv_mailbox_data *mbdata, int mb)
{
u32 flags = readl(&mbdata->mbox[mb].flags);
int is_free = flags == IVTV_MBOX_FREE || (flags & IVTV_MBOX_FIRMWARE_DONE);
/* if the mailbox is free, then try to claim it */
if (is_free && !test_and_set_bit(mb, &mbdata->busy)) {
write_sync(IVTV_MBOX_DRIVER_BUSY, &mbdata->mbox[mb].flags);
return 1;
}
return 0;
}
/* Try to find a free mailbox. Note mailbox 0 is reserved for DMA and so is not
attempted here. */
static int get_mailbox(struct ivtv *itv, struct ivtv_mailbox_data *mbdata, int flags)
{
unsigned long then = jiffies;
int i, mb;
int max_mbox = mbdata->max_mbox;
int retries = 100;
/* All slow commands use the same mailbox, serializing them and also
leaving the other mailbox free for simple fast commands. */
if ((flags & API_FAST_RESULT) == API_RESULT)
max_mbox = 1;
/* find free non-DMA mailbox */
for (i = 0; i < retries; i++) {
for (mb = 1; mb <= max_mbox; mb++)
if (try_mailbox(itv, mbdata, mb))
return mb;
/* Sleep before a retry, if not atomic */
if (!(flags & API_NO_WAIT_MB)) {
if (time_after(jiffies,
then + msecs_to_jiffies(10*retries)))
break;
ivtv_msleep_timeout(10, 0);
}
}
return -ENODEV;
}
static void write_mailbox(volatile struct ivtv_mailbox __iomem *mbox, int cmd, int args, u32 data[])
{
int i;
write_sync(cmd, &mbox->cmd);
write_sync(IVTV_API_STD_TIMEOUT, &mbox->timeout);
for (i = 0; i < CX2341X_MBOX_MAX_DATA; i++)
write_sync(data[i], &mbox->data[i]);
write_sync(IVTV_MBOX_DRIVER_DONE | IVTV_MBOX_DRIVER_BUSY, &mbox->flags);
}
static void clear_all_mailboxes(struct ivtv *itv, struct ivtv_mailbox_data *mbdata)
{
int i;
for (i = 0; i <= mbdata->max_mbox; i++) {
IVTV_DEBUG_WARN("Clearing mailbox %d: cmd 0x%08x flags 0x%08x\n",
i, readl(&mbdata->mbox[i].cmd), readl(&mbdata->mbox[i].flags));
write_sync(0, &mbdata->mbox[i].flags);
clear_bit(i, &mbdata->busy);
}
}
static int ivtv_api_call(struct ivtv *itv, int cmd, int args, u32 data[])
{
struct ivtv_mailbox_data *mbdata = (cmd >= 128) ? &itv->enc_mbox : &itv->dec_mbox;
volatile struct ivtv_mailbox __iomem *mbox;
int api_timeout = msecs_to_jiffies(1000);
int flags, mb, i;
unsigned long then;
/* sanity checks */
if (NULL == mbdata) {
IVTV_ERR("No mailbox allocated\n");
return -ENODEV;
}
if (args < 0 || args > CX2341X_MBOX_MAX_DATA ||
cmd < 0 || cmd > 255 || api_info[cmd].name == NULL) {
IVTV_ERR("Invalid MB call: cmd = 0x%02x, args = %d\n", cmd, args);
return -EINVAL;
}
if (api_info[cmd].flags & API_HIGH_VOL) {
IVTV_DEBUG_HI_MB("MB Call: %s\n", api_info[cmd].name);
}
else {
IVTV_DEBUG_MB("MB Call: %s\n", api_info[cmd].name);
}
/* clear possibly uninitialized part of data array */
for (i = args; i < CX2341X_MBOX_MAX_DATA; i++)
data[i] = 0;
/* If this command was issued within the last 30 minutes and with identical
data, then just return 0 as there is no need to issue this command again.
Just an optimization to prevent unnecessary use of mailboxes. */
if (itv->api_cache[cmd].last_jiffies &&
time_before(jiffies,
itv->api_cache[cmd].last_jiffies +
msecs_to_jiffies(1800000)) &&
!memcmp(data, itv->api_cache[cmd].data, sizeof(itv->api_cache[cmd].data))) {
itv->api_cache[cmd].last_jiffies = jiffies;
return 0;
}
flags = api_info[cmd].flags;
if (flags & API_DMA) {
for (i = 0; i < 100; i++) {
mb = i % (mbdata->max_mbox + 1);
if (try_mailbox(itv, mbdata, mb)) {
write_mailbox(&mbdata->mbox[mb], cmd, args, data);
clear_bit(mb, &mbdata->busy);
return 0;
}
IVTV_DEBUG_WARN("%s: mailbox %d not free %08x\n",
api_info[cmd].name, mb, readl(&mbdata->mbox[mb].flags));
}
IVTV_WARN("Could not find free DMA mailbox for %s\n", api_info[cmd].name);
clear_all_mailboxes(itv, mbdata);
return -EBUSY;
}
if ((flags & API_FAST_RESULT) == API_FAST_RESULT)
api_timeout = msecs_to_jiffies(100);
mb = get_mailbox(itv, mbdata, flags);
if (mb < 0) {
IVTV_DEBUG_WARN("No free mailbox found (%s)\n", api_info[cmd].name);
clear_all_mailboxes(itv, mbdata);
return -EBUSY;
}
mbox = &mbdata->mbox[mb];
write_mailbox(mbox, cmd, args, data);
if (flags & API_CACHE) {
memcpy(itv->api_cache[cmd].data, data, sizeof(itv->api_cache[cmd].data));
itv->api_cache[cmd].last_jiffies = jiffies;
}
if ((flags & API_RESULT) == 0) {
clear_bit(mb, &mbdata->busy);
return 0;
}
/* Get results */
then = jiffies;
if (!(flags & API_NO_POLL)) {
/* First try to poll, then switch to delays */
for (i = 0; i < 100; i++) {
if (readl(&mbox->flags) & IVTV_MBOX_FIRMWARE_DONE)
break;
}
}
while (!(readl(&mbox->flags) & IVTV_MBOX_FIRMWARE_DONE)) {
if (time_after(jiffies, then + api_timeout)) {
IVTV_DEBUG_WARN("Could not get result (%s)\n", api_info[cmd].name);
/* reset the mailbox, but it is likely too late already */
write_sync(0, &mbox->flags);
clear_bit(mb, &mbdata->busy);
return -EIO;
}
if (flags & API_NO_WAIT_RES)
mdelay(1);
else
ivtv_msleep_timeout(1, 0);
}
if (time_after(jiffies, then + msecs_to_jiffies(100)))
IVTV_DEBUG_WARN("%s took %u jiffies\n",
api_info[cmd].name,
jiffies_to_msecs(jiffies - then));
for (i = 0; i < CX2341X_MBOX_MAX_DATA; i++)
data[i] = readl(&mbox->data[i]);
write_sync(0, &mbox->flags);
clear_bit(mb, &mbdata->busy);
return 0;
}
int ivtv_api(struct ivtv *itv, int cmd, int args, u32 data[])
{
int res = ivtv_api_call(itv, cmd, args, data);
/* Allow a single retry, probably already too late though.
If there is no free mailbox then that is usually an indication
of a more serious problem. */
return (res == -EBUSY) ? ivtv_api_call(itv, cmd, args, data) : res;
}
int ivtv_api_func(void *priv, u32 cmd, int in, int out, u32 data[CX2341X_MBOX_MAX_DATA])
{
return ivtv_api(priv, cmd, in, data);
}
int ivtv_vapi_result(struct ivtv *itv, u32 data[CX2341X_MBOX_MAX_DATA], int cmd, int args, ...)
{
va_list ap;
int i;
va_start(ap, args);
for (i = 0; i < args; i++) {
data[i] = va_arg(ap, u32);
}
va_end(ap);
return ivtv_api(itv, cmd, args, data);
}
int ivtv_vapi(struct ivtv *itv, int cmd, int args, ...)
{
u32 data[CX2341X_MBOX_MAX_DATA];
va_list ap;
int i;
va_start(ap, args);
for (i = 0; i < args; i++) {
data[i] = va_arg(ap, u32);
}
va_end(ap);
return ivtv_api(itv, cmd, args, data);
}
/* This one is for stuff that can't sleep.. irq handlers, etc.. */
void ivtv_api_get_data(struct ivtv_mailbox_data *mbdata, int mb,
int argc, u32 data[])
{
volatile u32 __iomem *p = mbdata->mbox[mb].data;
int i;
for (i = 0; i < argc; i++, p++)
data[i] = readl(p);
}
/* Wipe api cache */
void ivtv_mailbox_cache_invalidate(struct ivtv *itv)
{
int i;
for (i = 0; i < 256; i++)
itv->api_cache[i].last_jiffies = 0;
}

35
drivers/media/pci/ivtv/ivtv-mailbox.h Normal file
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/*
mailbox functions
Copyright (C) 2003-2004 Kevin Thayer <nufan_wfk at yahoo.com>
Copyright (C) 2005-2007 Hans Verkuil <hverkuil@xs4all.nl>
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 IVTV_MAILBOX_H
#define IVTV_MAILBOX_H
#define IVTV_MBOX_DMA_END 8
#define IVTV_MBOX_DMA 9
void ivtv_api_get_data(struct ivtv_mailbox_data *mbdata, int mb,
int argc, u32 data[]);
int ivtv_api(struct ivtv *itv, int cmd, int args, u32 data[]);
int ivtv_vapi_result(struct ivtv *itv, u32 data[CX2341X_MBOX_MAX_DATA], int cmd, int args, ...);
int ivtv_vapi(struct ivtv *itv, int cmd, int args, ...);
int ivtv_api_func(void *priv, u32 cmd, int in, int out, u32 data[CX2341X_MBOX_MAX_DATA]);
void ivtv_mailbox_cache_invalidate(struct ivtv *itv);
#endif

297
drivers/media/pci/ivtv/ivtv-queue.c Normal file
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/*
buffer queues.
Copyright (C) 2003-2004 Kevin Thayer <nufan_wfk at yahoo.com>
Copyright (C) 2004 Chris Kennedy <c@groovy.org>
Copyright (C) 2005-2007 Hans Verkuil <hverkuil@xs4all.nl>
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 "ivtv-driver.h"
#include "ivtv-queue.h"
int ivtv_buf_copy_from_user(struct ivtv_stream *s, struct ivtv_buffer *buf, const char __user *src, int copybytes)
{
if (s->buf_size - buf->bytesused < copybytes)
copybytes = s->buf_size - buf->bytesused;
if (copy_from_user(buf->buf + buf->bytesused, src, copybytes)) {
return -EFAULT;
}
buf->bytesused += copybytes;
return copybytes;
}
void ivtv_buf_swap(struct ivtv_buffer *buf)
{
int i;
for (i = 0; i < buf->bytesused; i += 4)
swab32s((u32 *)(buf->buf + i));
}
void ivtv_queue_init(struct ivtv_queue *q)
{
INIT_LIST_HEAD(&q->list);
q->buffers = 0;
q->length = 0;
q->bytesused = 0;
}
void ivtv_enqueue(struct ivtv_stream *s, struct ivtv_buffer *buf, struct ivtv_queue *q)
{
unsigned long flags;
/* clear the buffer if it is going to be enqueued to the free queue */
if (q == &s->q_free) {
buf->bytesused = 0;
buf->readpos = 0;
buf->b_flags = 0;
buf->dma_xfer_cnt = 0;
}
spin_lock_irqsave(&s->qlock, flags);
list_add_tail(&buf->list, &q->list);
q->buffers++;
q->length += s->buf_size;
q->bytesused += buf->bytesused - buf->readpos;
spin_unlock_irqrestore(&s->qlock, flags);
}
struct ivtv_buffer *ivtv_dequeue(struct ivtv_stream *s, struct ivtv_queue *q)
{
struct ivtv_buffer *buf = NULL;
unsigned long flags;
spin_lock_irqsave(&s->qlock, flags);
if (!list_empty(&q->list)) {
buf = list_entry(q->list.next, struct ivtv_buffer, list);
list_del_init(q->list.next);
q->buffers--;
q->length -= s->buf_size;
q->bytesused -= buf->bytesused - buf->readpos;
}
spin_unlock_irqrestore(&s->qlock, flags);
return buf;
}
static void ivtv_queue_move_buf(struct ivtv_stream *s, struct ivtv_queue *from,
struct ivtv_queue *to, int clear)
{
struct ivtv_buffer *buf = list_entry(from->list.next, struct ivtv_buffer, list);
list_move_tail(from->list.next, &to->list);
from->buffers--;
from->length -= s->buf_size;
from->bytesused -= buf->bytesused - buf->readpos;
/* special handling for q_free */
if (clear)
buf->bytesused = buf->readpos = buf->b_flags = buf->dma_xfer_cnt = 0;
to->buffers++;
to->length += s->buf_size;
to->bytesused += buf->bytesused - buf->readpos;
}
/* Move 'needed_bytes' worth of buffers from queue 'from' into queue 'to'.
If 'needed_bytes' == 0, then move all buffers from 'from' into 'to'.
If 'steal' != NULL, then buffers may also taken from that queue if
needed, but only if 'from' is the free queue.
The buffer is automatically cleared if it goes to the free queue. It is
also cleared if buffers need to be taken from the 'steal' queue and
the 'from' queue is the free queue.
When 'from' is q_free, then needed_bytes is compared to the total
available buffer length, otherwise needed_bytes is compared to the
bytesused value. For the 'steal' queue the total available buffer
length is always used.
-ENOMEM is returned if the buffers could not be obtained, 0 if all
buffers where obtained from the 'from' list and if non-zero then
the number of stolen buffers is returned. */
int ivtv_queue_move(struct ivtv_stream *s, struct ivtv_queue *from, struct ivtv_queue *steal,
struct ivtv_queue *to, int needed_bytes)
{
unsigned long flags;
int rc = 0;
int from_free = from == &s->q_free;
int to_free = to == &s->q_free;
int bytes_available, bytes_steal;
spin_lock_irqsave(&s->qlock, flags);
if (needed_bytes == 0) {
from_free = 1;
needed_bytes = from->length;
}
bytes_available = from_free ? from->length : from->bytesused;
bytes_steal = (from_free && steal) ? steal->length : 0;
if (bytes_available + bytes_steal < needed_bytes) {
spin_unlock_irqrestore(&s->qlock, flags);
return -ENOMEM;
}
while (bytes_available < needed_bytes) {
struct ivtv_buffer *buf = list_entry(steal->list.prev, struct ivtv_buffer, list);
u16 dma_xfer_cnt = buf->dma_xfer_cnt;
/* move buffers from the tail of the 'steal' queue to the tail of the
'from' queue. Always copy all the buffers with the same dma_xfer_cnt
value, this ensures that you do not end up with partial frame data
if one frame is stored in multiple buffers. */
while (dma_xfer_cnt == buf->dma_xfer_cnt) {
list_move_tail(steal->list.prev, &from->list);
rc++;
steal->buffers--;
steal->length -= s->buf_size;
steal->bytesused -= buf->bytesused - buf->readpos;
buf->bytesused = buf->readpos = buf->b_flags = buf->dma_xfer_cnt = 0;
from->buffers++;
from->length += s->buf_size;
bytes_available += s->buf_size;
if (list_empty(&steal->list))
break;
buf = list_entry(steal->list.prev, struct ivtv_buffer, list);
}
}
if (from_free) {
u32 old_length = to->length;
while (to->length - old_length < needed_bytes) {
ivtv_queue_move_buf(s, from, to, 1);
}
}
else {
u32 old_bytesused = to->bytesused;
while (to->bytesused - old_bytesused < needed_bytes) {
ivtv_queue_move_buf(s, from, to, to_free);
}
}
spin_unlock_irqrestore(&s->qlock, flags);
return rc;
}
void ivtv_flush_queues(struct ivtv_stream *s)
{
ivtv_queue_move(s, &s->q_io, NULL, &s->q_free, 0);
ivtv_queue_move(s, &s->q_full, NULL, &s->q_free, 0);
ivtv_queue_move(s, &s->q_dma, NULL, &s->q_free, 0);
ivtv_queue_move(s, &s->q_predma, NULL, &s->q_free, 0);
}
int ivtv_stream_alloc(struct ivtv_stream *s)
{
struct ivtv *itv = s->itv;
int SGsize = sizeof(struct ivtv_sg_host_element) * s->buffers;
int i;
if (s->buffers == 0)
return 0;
IVTV_DEBUG_INFO("Allocate %s%s stream: %d x %d buffers (%dkB total)\n",
s->dma != PCI_DMA_NONE ? "DMA " : "",
s->name, s->buffers, s->buf_size, s->buffers * s->buf_size / 1024);
s->sg_pending = kzalloc(SGsize, GFP_KERNEL|__GFP_NOWARN);
if (s->sg_pending == NULL) {
IVTV_ERR("Could not allocate sg_pending for %s stream\n", s->name);
return -ENOMEM;
}
s->sg_pending_size = 0;
s->sg_processing = kzalloc(SGsize, GFP_KERNEL|__GFP_NOWARN);
if (s->sg_processing == NULL) {
IVTV_ERR("Could not allocate sg_processing for %s stream\n", s->name);
kfree(s->sg_pending);
s->sg_pending = NULL;
return -ENOMEM;
}
s->sg_processing_size = 0;
s->sg_dma = kzalloc(sizeof(struct ivtv_sg_element),
GFP_KERNEL|__GFP_NOWARN);
if (s->sg_dma == NULL) {
IVTV_ERR("Could not allocate sg_dma for %s stream\n", s->name);
kfree(s->sg_pending);
s->sg_pending = NULL;
kfree(s->sg_processing);
s->sg_processing = NULL;
return -ENOMEM;
}
if (ivtv_might_use_dma(s)) {
s->sg_handle = pci_map_single(itv->pdev, s->sg_dma,
sizeof(struct ivtv_sg_element), PCI_DMA_TODEVICE);
ivtv_stream_sync_for_cpu(s);
}
/* allocate stream buffers. Initially all buffers are in q_free. */
for (i = 0; i < s->buffers; i++) {
struct ivtv_buffer *buf = kzalloc(sizeof(struct ivtv_buffer),
GFP_KERNEL|__GFP_NOWARN);
if (buf == NULL)
break;
buf->buf = kmalloc(s->buf_size + 256, GFP_KERNEL|__GFP_NOWARN);
if (buf->buf == NULL) {
kfree(buf);
break;
}
INIT_LIST_HEAD(&buf->list);
if (ivtv_might_use_dma(s)) {
buf->dma_handle = pci_map_single(s->itv->pdev,
buf->buf, s->buf_size + 256, s->dma);
ivtv_buf_sync_for_cpu(s, buf);
}
ivtv_enqueue(s, buf, &s->q_free);
}
if (i == s->buffers)
return 0;
IVTV_ERR("Couldn't allocate buffers for %s stream\n", s->name);
ivtv_stream_free(s);
return -ENOMEM;
}
void ivtv_stream_free(struct ivtv_stream *s)
{
struct ivtv_buffer *buf;
/* move all buffers to q_free */
ivtv_flush_queues(s);
/* empty q_free */
while ((buf = ivtv_dequeue(s, &s->q_free))) {
if (ivtv_might_use_dma(s))
pci_unmap_single(s->itv->pdev, buf->dma_handle,
s->buf_size + 256, s->dma);
kfree(buf->buf);
kfree(buf);
}
/* Free SG Array/Lists */
if (s->sg_dma != NULL) {
if (s->sg_handle != IVTV_DMA_UNMAPPED) {
pci_unmap_single(s->itv->pdev, s->sg_handle,
sizeof(struct ivtv_sg_element), PCI_DMA_TODEVICE);
s->sg_handle = IVTV_DMA_UNMAPPED;
}
kfree(s->sg_pending);
kfree(s->sg_processing);
kfree(s->sg_dma);
s->sg_pending = NULL;
s->sg_processing = NULL;
s->sg_dma = NULL;
s->sg_pending_size = 0;
s->sg_processing_size = 0;
}
}

96
drivers/media/pci/ivtv/ivtv-queue.h Normal file
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/*
buffer queues.
Copyright (C) 2003-2004 Kevin Thayer <nufan_wfk at yahoo.com>
Copyright (C) 2004 Chris Kennedy <c@groovy.org>
Copyright (C) 2005-2007 Hans Verkuil <hverkuil@xs4all.nl>
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 IVTV_QUEUE_H
#define IVTV_QUEUE_H
#define IVTV_DMA_UNMAPPED ((u32) -1)
#define SLICED_VBI_PIO 0
/* ivtv_buffer utility functions */
static inline int ivtv_might_use_pio(struct ivtv_stream *s)
{
return s->dma == PCI_DMA_NONE || (SLICED_VBI_PIO && s->type == IVTV_ENC_STREAM_TYPE_VBI);
}
static inline int ivtv_use_pio(struct ivtv_stream *s)
{
struct ivtv *itv = s->itv;
return s->dma == PCI_DMA_NONE ||
(SLICED_VBI_PIO && s->type == IVTV_ENC_STREAM_TYPE_VBI && itv->vbi.sliced_in->service_set);
}
static inline int ivtv_might_use_dma(struct ivtv_stream *s)
{
return s->dma != PCI_DMA_NONE;
}
static inline int ivtv_use_dma(struct ivtv_stream *s)
{
return !ivtv_use_pio(s);
}
static inline void ivtv_buf_sync_for_cpu(struct ivtv_stream *s, struct ivtv_buffer *buf)
{
if (ivtv_use_dma(s))
pci_dma_sync_single_for_cpu(s->itv->pdev, buf->dma_handle,
s->buf_size + 256, s->dma);
}
static inline void ivtv_buf_sync_for_device(struct ivtv_stream *s, struct ivtv_buffer *buf)
{
if (ivtv_use_dma(s))
pci_dma_sync_single_for_device(s->itv->pdev, buf->dma_handle,
s->buf_size + 256, s->dma);
}
int ivtv_buf_copy_from_user(struct ivtv_stream *s, struct ivtv_buffer *buf, const char __user *src, int copybytes);
void ivtv_buf_swap(struct ivtv_buffer *buf);
/* ivtv_queue utility functions */
void ivtv_queue_init(struct ivtv_queue *q);
void ivtv_enqueue(struct ivtv_stream *s, struct ivtv_buffer *buf, struct ivtv_queue *q);
struct ivtv_buffer *ivtv_dequeue(struct ivtv_stream *s, struct ivtv_queue *q);
int ivtv_queue_move(struct ivtv_stream *s, struct ivtv_queue *from, struct ivtv_queue *steal,
struct ivtv_queue *to, int needed_bytes);
void ivtv_flush_queues(struct ivtv_stream *s);
/* ivtv_stream utility functions */
int ivtv_stream_alloc(struct ivtv_stream *s);
void ivtv_stream_free(struct ivtv_stream *s);
static inline void ivtv_stream_sync_for_cpu(struct ivtv_stream *s)
{
if (ivtv_use_dma(s))
pci_dma_sync_single_for_cpu(s->itv->pdev, s->sg_handle,
sizeof(struct ivtv_sg_element), PCI_DMA_TODEVICE);
}
static inline void ivtv_stream_sync_for_device(struct ivtv_stream *s)
{
if (ivtv_use_dma(s))
pci_dma_sync_single_for_device(s->itv->pdev, s->sg_handle,
sizeof(struct ivtv_sg_element), PCI_DMA_TODEVICE);
}
#endif

119
drivers/media/pci/ivtv/ivtv-routing.c Normal file
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/*
Audio/video-routing-related ivtv functions.
Copyright (C) 2003-2004 Kevin Thayer <nufan_wfk at yahoo.com>
Copyright (C) 2005-2007 Hans Verkuil <hverkuil@xs4all.nl>
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 "ivtv-driver.h"
#include "ivtv-i2c.h"
#include "ivtv-cards.h"
#include "ivtv-gpio.h"
#include "ivtv-routing.h"
#include <media/msp3400.h>
#include <media/m52790.h>
#include <media/upd64031a.h>
#include <media/upd64083.h>
/* Selects the audio input and output according to the current
settings. */
void ivtv_audio_set_io(struct ivtv *itv)
{
const struct ivtv_card_audio_input *in;
u32 input, output = 0;
/* Determine which input to use */
if (test_bit(IVTV_F_I_RADIO_USER, &itv->i_flags))
in = &itv->card->radio_input;
else
in = &itv->card->audio_inputs[itv->audio_input];
/* handle muxer chips */
input = in->muxer_input;
if (itv->card->hw_muxer & IVTV_HW_M52790)
output = M52790_OUT_STEREO;
v4l2_subdev_call(itv->sd_muxer, audio, s_routing,
input, output, 0);
input = in->audio_input;
output = 0;
if (itv->card->hw_audio & IVTV_HW_MSP34XX)
output = MSP_OUTPUT(MSP_SC_IN_DSP_SCART1);
ivtv_call_hw(itv, itv->card->hw_audio, audio, s_routing,
input, output, 0);
}
/* Selects the video input and output according to the current
settings. */
void ivtv_video_set_io(struct ivtv *itv)
{
int inp = itv->active_input;
u32 input;
u32 type;
v4l2_subdev_call(itv->sd_video, video, s_routing,
itv->card->video_inputs[inp].video_input, 0, 0);
type = itv->card->video_inputs[inp].video_type;
if (type == IVTV_CARD_INPUT_VID_TUNER) {
input = 0; /* Tuner */
} else if (type < IVTV_CARD_INPUT_COMPOSITE1) {
input = 2; /* S-Video */
} else {
input = 1; /* Composite */
}
if (itv->card->hw_video & IVTV_HW_GPIO)
ivtv_call_hw(itv, IVTV_HW_GPIO, video, s_routing,
input, 0, 0);
if (itv->card->hw_video & IVTV_HW_UPD64031A) {
if (type == IVTV_CARD_INPUT_VID_TUNER ||
type >= IVTV_CARD_INPUT_COMPOSITE1) {
/* Composite: GR on, connect to 3DYCS */
input = UPD64031A_GR_ON | UPD64031A_3DYCS_COMPOSITE;
} else {
/* S-Video: GR bypassed, turn it off */
input = UPD64031A_GR_OFF | UPD64031A_3DYCS_DISABLE;
}
input |= itv->card->gr_config;
ivtv_call_hw(itv, IVTV_HW_UPD64031A, video, s_routing,
input, 0, 0);
}
if (itv->card->hw_video & IVTV_HW_UPD6408X) {
input = UPD64083_YCS_MODE;
if (type > IVTV_CARD_INPUT_VID_TUNER &&
type < IVTV_CARD_INPUT_COMPOSITE1) {
/* S-Video uses YCNR mode and internal Y-ADC, the
upd64031a is not used. */
input |= UPD64083_YCNR_MODE;
}
else if (itv->card->hw_video & IVTV_HW_UPD64031A) {
/* Use upd64031a output for tuner and
composite(CX23416GYC only) inputs */
if (type == IVTV_CARD_INPUT_VID_TUNER ||
itv->card->type == IVTV_CARD_CX23416GYC) {
input |= UPD64083_EXT_Y_ADC;
}
}
ivtv_call_hw(itv, IVTV_HW_UPD6408X, video, s_routing,
input, 0, 0);
}
}

27
drivers/media/pci/ivtv/ivtv-routing.h Normal file
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/*
Audio/video-routing-related ivtv functions.
Copyright (C) 2003-2004 Kevin Thayer <nufan_wfk at yahoo.com>
Copyright (C) 2005-2007 Hans Verkuil <hverkuil@xs4all.nl>
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 IVTV_ROUTING_H
#define IVTV_ROUTING_H
void ivtv_audio_set_io(struct ivtv *itv);
void ivtv_video_set_io(struct ivtv *itv);
#endif

1039
drivers/media/pci/ivtv/ivtv-streams.c Normal file
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37
drivers/media/pci/ivtv/ivtv-streams.h Normal file
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/*
init/start/stop/exit stream functions
Copyright (C) 2003-2004 Kevin Thayer <nufan_wfk at yahoo.com>
Copyright (C) 2005-2007 Hans Verkuil <hverkuil@xs4all.nl>
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 IVTV_STREAMS_H
#define IVTV_STREAMS_H
int ivtv_streams_setup(struct ivtv *itv);
int ivtv_streams_register(struct ivtv *itv);
void ivtv_streams_cleanup(struct ivtv *itv, int unregister);
/* Capture related */
int ivtv_start_v4l2_encode_stream(struct ivtv_stream *s);
int ivtv_stop_v4l2_encode_stream(struct ivtv_stream *s, int gop_end);
int ivtv_start_v4l2_decode_stream(struct ivtv_stream *s, int gop_offset);
int ivtv_stop_v4l2_decode_stream(struct ivtv_stream *s, int flags, u64 pts);
void ivtv_stop_all_captures(struct ivtv *itv);
int ivtv_passthrough_mode(struct ivtv *itv, int enable);
#endif

234
drivers/media/pci/ivtv/ivtv-udma.c Normal file
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/*
User DMA
Copyright (C) 2003-2004 Kevin Thayer <nufan_wfk at yahoo.com>
Copyright (C) 2004 Chris Kennedy <c@groovy.org>
Copyright (C) 2005-2007 Hans Verkuil <hverkuil@xs4all.nl>
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 "ivtv-driver.h"
#include "ivtv-udma.h"
void ivtv_udma_get_page_info(struct ivtv_dma_page_info *dma_page, unsigned long first, unsigned long size)
{
dma_page->uaddr = first & PAGE_MASK;
dma_page->offset = first & ~PAGE_MASK;
dma_page->tail = 1 + ((first+size-1) & ~PAGE_MASK);
dma_page->first = (first & PAGE_MASK) >> PAGE_SHIFT;
dma_page->last = ((first+size-1) & PAGE_MASK) >> PAGE_SHIFT;
dma_page->page_count = dma_page->last - dma_page->first + 1;
if (dma_page->page_count == 1) dma_page->tail -= dma_page->offset;
}
int ivtv_udma_fill_sg_list (struct ivtv_user_dma *dma, struct ivtv_dma_page_info *dma_page, int map_offset)
{
int i, offset;
unsigned long flags;
if (map_offset < 0)
return map_offset;
offset = dma_page->offset;
/* Fill SG Array with new values */
for (i = 0; i < dma_page->page_count; i++) {
unsigned int len = (i == dma_page->page_count - 1) ?
dma_page->tail : PAGE_SIZE - offset;
if (PageHighMem(dma->map[map_offset])) {
void *src;
if (dma->bouncemap[map_offset] == NULL)
dma->bouncemap[map_offset] = alloc_page(GFP_KERNEL);
if (dma->bouncemap[map_offset] == NULL)
return -1;
local_irq_save(flags);
src = kmap_atomic(dma->map[map_offset]) + offset;
memcpy(page_address(dma->bouncemap[map_offset]) + offset, src, len);
kunmap_atomic(src);
local_irq_restore(flags);
sg_set_page(&dma->SGlist[map_offset], dma->bouncemap[map_offset], len, offset);
}
else {
sg_set_page(&dma->SGlist[map_offset], dma->map[map_offset], len, offset);
}
offset = 0;
map_offset++;
}
return map_offset;
}
void ivtv_udma_fill_sg_array (struct ivtv_user_dma *dma, u32 buffer_offset, u32 buffer_offset_2, u32 split) {
int i;
struct scatterlist *sg;
for (i = 0, sg = dma->SGlist; i < dma->SG_length; i++, sg++) {
dma->SGarray[i].size = cpu_to_le32(sg_dma_len(sg));
dma->SGarray[i].src = cpu_to_le32(sg_dma_address(sg));
dma->SGarray[i].dst = cpu_to_le32(buffer_offset);
buffer_offset += sg_dma_len(sg);
split -= sg_dma_len(sg);
if (split == 0)
buffer_offset = buffer_offset_2;
}
}
/* User DMA Buffers */
void ivtv_udma_alloc(struct ivtv *itv)
{
if (itv->udma.SG_handle == 0) {
/* Map DMA Page Array Buffer */
itv->udma.SG_handle = pci_map_single(itv->pdev, itv->udma.SGarray,
sizeof(itv->udma.SGarray), PCI_DMA_TODEVICE);
ivtv_udma_sync_for_cpu(itv);
}
}
int ivtv_udma_setup(struct ivtv *itv, unsigned long ivtv_dest_addr,
void __user *userbuf, int size_in_bytes)
{
struct ivtv_dma_page_info user_dma;
struct ivtv_user_dma *dma = &itv->udma;
int i, err;
IVTV_DEBUG_DMA("ivtv_udma_setup, dst: 0x%08x\n", (unsigned int)ivtv_dest_addr);
/* Still in USE */
if (dma->SG_length || dma->page_count) {
IVTV_DEBUG_WARN("ivtv_udma_setup: SG_length %d page_count %d still full?\n",
dma->SG_length, dma->page_count);
return -EBUSY;
}
ivtv_udma_get_page_info(&user_dma, (unsigned long)userbuf, size_in_bytes);
if (user_dma.page_count <= 0) {
IVTV_DEBUG_WARN("ivtv_udma_setup: Error %d page_count from %d bytes %d offset\n",
user_dma.page_count, size_in_bytes, user_dma.offset);
return -EINVAL;
}
/* Get user pages for DMA Xfer */
down_read(&current->mm->mmap_sem);
err = get_user_pages(current, current->mm,
user_dma.uaddr, user_dma.page_count, 0, 1, dma->map, NULL);
up_read(&current->mm->mmap_sem);
if (user_dma.page_count != err) {
IVTV_DEBUG_WARN("failed to map user pages, returned %d instead of %d\n",
err, user_dma.page_count);
if (err >= 0) {
for (i = 0; i < err; i++)
put_page(dma->map[i]);
return -EINVAL;
}
return err;
}
dma->page_count = user_dma.page_count;
/* Fill SG List with new values */
if (ivtv_udma_fill_sg_list(dma, &user_dma, 0) < 0) {
for (i = 0; i < dma->page_count; i++) {
put_page(dma->map[i]);
}
dma->page_count = 0;
return -ENOMEM;
}
/* Map SG List */
dma->SG_length = pci_map_sg(itv->pdev, dma->SGlist, dma->page_count, PCI_DMA_TODEVICE);
/* Fill SG Array with new values */
ivtv_udma_fill_sg_array (dma, ivtv_dest_addr, 0, -1);
/* Tag SG Array with Interrupt Bit */
dma->SGarray[dma->SG_length - 1].size |= cpu_to_le32(0x80000000);
ivtv_udma_sync_for_device(itv);
return dma->page_count;
}
void ivtv_udma_unmap(struct ivtv *itv)
{
struct ivtv_user_dma *dma = &itv->udma;
int i;
IVTV_DEBUG_INFO("ivtv_unmap_user_dma\n");
/* Nothing to free */
if (dma->page_count == 0)
return;
/* Unmap Scatterlist */
if (dma->SG_length) {
pci_unmap_sg(itv->pdev, dma->SGlist, dma->page_count, PCI_DMA_TODEVICE);
dma->SG_length = 0;
}
/* sync DMA */
ivtv_udma_sync_for_cpu(itv);
/* Release User Pages */
for (i = 0; i < dma->page_count; i++) {
put_page(dma->map[i]);
}
dma->page_count = 0;
}
void ivtv_udma_free(struct ivtv *itv)
{
int i;
/* Unmap SG Array */
if (itv->udma.SG_handle) {
pci_unmap_single(itv->pdev, itv->udma.SG_handle,
sizeof(itv->udma.SGarray), PCI_DMA_TODEVICE);
}
/* Unmap Scatterlist */
if (itv->udma.SG_length) {
pci_unmap_sg(itv->pdev, itv->udma.SGlist, itv->udma.page_count, PCI_DMA_TODEVICE);
}
for (i = 0; i < IVTV_DMA_SG_OSD_ENT; i++) {
if (itv->udma.bouncemap[i])
__free_page(itv->udma.bouncemap[i]);
}
}
void ivtv_udma_start(struct ivtv *itv)
{
IVTV_DEBUG_DMA("start UDMA\n");
write_reg(itv->udma.SG_handle, IVTV_REG_DECDMAADDR);
write_reg_sync(read_reg(IVTV_REG_DMAXFER) | 0x01, IVTV_REG_DMAXFER);
set_bit(IVTV_F_I_DMA, &itv->i_flags);
set_bit(IVTV_F_I_UDMA, &itv->i_flags);
clear_bit(IVTV_F_I_UDMA_PENDING, &itv->i_flags);
}
void ivtv_udma_prepare(struct ivtv *itv)
{
unsigned long flags;
spin_lock_irqsave(&itv->dma_reg_lock, flags);
if (!test_bit(IVTV_F_I_DMA, &itv->i_flags))
ivtv_udma_start(itv);
else
set_bit(IVTV_F_I_UDMA_PENDING, &itv->i_flags);
spin_unlock_irqrestore(&itv->dma_reg_lock, flags);
}

48
drivers/media/pci/ivtv/ivtv-udma.h Normal file
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/*
Copyright (C) 2003-2004 Kevin Thayer <nufan_wfk at yahoo.com>
Copyright (C) 2004 Chris Kennedy <c@groovy.org>
Copyright (C) 2006-2007 Hans Verkuil <hverkuil@xs4all.nl>
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 IVTV_UDMA_H
#define IVTV_UDMA_H
/* User DMA functions */
void ivtv_udma_get_page_info(struct ivtv_dma_page_info *dma_page, unsigned long first, unsigned long size);
int ivtv_udma_fill_sg_list(struct ivtv_user_dma *dma, struct ivtv_dma_page_info *dma_page, int map_offset);
void ivtv_udma_fill_sg_array(struct ivtv_user_dma *dma, u32 buffer_offset, u32 buffer_offset_2, u32 split);
int ivtv_udma_setup(struct ivtv *itv, unsigned long ivtv_dest_addr,
void __user *userbuf, int size_in_bytes);
void ivtv_udma_unmap(struct ivtv *itv);
void ivtv_udma_free(struct ivtv *itv);
void ivtv_udma_alloc(struct ivtv *itv);
void ivtv_udma_prepare(struct ivtv *itv);
void ivtv_udma_start(struct ivtv *itv);
static inline void ivtv_udma_sync_for_device(struct ivtv *itv)
{
pci_dma_sync_single_for_device(itv->pdev, itv->udma.SG_handle,
sizeof(itv->udma.SGarray), PCI_DMA_TODEVICE);
}
static inline void ivtv_udma_sync_for_cpu(struct ivtv *itv)
{
pci_dma_sync_single_for_cpu(itv->pdev, itv->udma.SG_handle,
sizeof(itv->udma.SGarray), PCI_DMA_TODEVICE);
}
#endif

549
drivers/media/pci/ivtv/ivtv-vbi.c Normal file
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/*
Vertical Blank Interval support functions
Copyright (C) 2004-2007 Hans Verkuil <hverkuil@xs4all.nl>
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 "ivtv-driver.h"
#include "ivtv-i2c.h"
#include "ivtv-ioctl.h"
#include "ivtv-queue.h"
#include "ivtv-cards.h"
#include "ivtv-vbi.h"
static void ivtv_set_vps(struct ivtv *itv, int enabled)
{
struct v4l2_sliced_vbi_data data;
if (!(itv->v4l2_cap & V4L2_CAP_VIDEO_OUTPUT))
return;
data.id = V4L2_SLICED_VPS;
data.field = 0;
data.line = enabled ? 16 : 0;
data.data[2] = itv->vbi.vps_payload.data[0];
data.data[8] = itv->vbi.vps_payload.data[1];
data.data[9] = itv->vbi.vps_payload.data[2];
data.data[10] = itv->vbi.vps_payload.data[3];
data.data[11] = itv->vbi.vps_payload.data[4];
ivtv_call_hw(itv, IVTV_HW_SAA7127, vbi, s_vbi_data, &data);
}
static void ivtv_set_cc(struct ivtv *itv, int mode, const struct vbi_cc *cc)
{
struct v4l2_sliced_vbi_data data;
if (!(itv->v4l2_cap & V4L2_CAP_VIDEO_OUTPUT))
return;
data.id = V4L2_SLICED_CAPTION_525;
data.field = 0;
data.line = (mode & 1) ? 21 : 0;
data.data[0] = cc->odd[0];
data.data[1] = cc->odd[1];
ivtv_call_hw(itv, IVTV_HW_SAA7127, vbi, s_vbi_data, &data);
data.field = 1;
data.line = (mode & 2) ? 21 : 0;
data.data[0] = cc->even[0];
data.data[1] = cc->even[1];
ivtv_call_hw(itv, IVTV_HW_SAA7127, vbi, s_vbi_data, &data);
}
static void ivtv_set_wss(struct ivtv *itv, int enabled, int mode)
{
struct v4l2_sliced_vbi_data data;
if (!(itv->v4l2_cap & V4L2_CAP_VIDEO_OUTPUT))
return;
/* When using a 50 Hz system, always turn on the
wide screen signal with 4x3 ratio as the default.
Turning this signal on and off can confuse certain
TVs. As far as I can tell there is no reason not to
transmit this signal. */
if ((itv->std_out & V4L2_STD_625_50) && !enabled) {
enabled = 1;
mode = 0x08; /* 4x3 full format */
}
data.id = V4L2_SLICED_WSS_625;
data.field = 0;
data.line = enabled ? 23 : 0;
data.data[0] = mode & 0xff;
data.data[1] = (mode >> 8) & 0xff;
ivtv_call_hw(itv, IVTV_HW_SAA7127, vbi, s_vbi_data, &data);
}
static int odd_parity(u8 c)
{
c ^= (c >> 4);
c ^= (c >> 2);
c ^= (c >> 1);
return c & 1;
}
static void ivtv_write_vbi_line(struct ivtv *itv,
const struct v4l2_sliced_vbi_data *d,
struct vbi_cc *cc, int *found_cc)
{
struct vbi_info *vi = &itv->vbi;
if (d->id == V4L2_SLICED_CAPTION_525 && d->line == 21) {
if (d->field) {
cc->even[0] = d->data[0];
cc->even[1] = d->data[1];
} else {
cc->odd[0] = d->data[0];
cc->odd[1] = d->data[1];
}
*found_cc = 1;
} else if (d->id == V4L2_SLICED_VPS && d->line == 16 && d->field == 0) {
struct vbi_vps vps;
vps.data[0] = d->data[2];
vps.data[1] = d->data[8];
vps.data[2] = d->data[9];
vps.data[3] = d->data[10];
vps.data[4] = d->data[11];
if (memcmp(&vps, &vi->vps_payload, sizeof(vps))) {
vi->vps_payload = vps;
set_bit(IVTV_F_I_UPDATE_VPS, &itv->i_flags);
}
} else if (d->id == V4L2_SLICED_WSS_625 &&
d->line == 23 && d->field == 0) {
int wss = d->data[0] | d->data[1] << 8;
if (vi->wss_payload != wss) {
vi->wss_payload = wss;
set_bit(IVTV_F_I_UPDATE_WSS, &itv->i_flags);
}
}
}
static void ivtv_write_vbi_cc_lines(struct ivtv *itv, const struct vbi_cc *cc)
{
struct vbi_info *vi = &itv->vbi;
if (vi->cc_payload_idx < ARRAY_SIZE(vi->cc_payload)) {
memcpy(&vi->cc_payload[vi->cc_payload_idx], cc,
sizeof(struct vbi_cc));
vi->cc_payload_idx++;
set_bit(IVTV_F_I_UPDATE_CC, &itv->i_flags);
}
}
static void ivtv_write_vbi(struct ivtv *itv,
const struct v4l2_sliced_vbi_data *sliced,
size_t cnt)
{
struct vbi_cc cc = { .odd = { 0x80, 0x80 }, .even = { 0x80, 0x80 } };
int found_cc = 0;
size_t i;
for (i = 0; i < cnt; i++)
ivtv_write_vbi_line(itv, sliced + i, &cc, &found_cc);
if (found_cc)
ivtv_write_vbi_cc_lines(itv, &cc);
}
ssize_t
ivtv_write_vbi_from_user(struct ivtv *itv,
const struct v4l2_sliced_vbi_data __user *sliced,
size_t cnt)
{
struct vbi_cc cc = { .odd = { 0x80, 0x80 }, .even = { 0x80, 0x80 } };
int found_cc = 0;
size_t i;
struct v4l2_sliced_vbi_data d;
ssize_t ret = cnt * sizeof(struct v4l2_sliced_vbi_data);
for (i = 0; i < cnt; i++) {
if (copy_from_user(&d, sliced + i,
sizeof(struct v4l2_sliced_vbi_data))) {
ret = -EFAULT;
break;
}
ivtv_write_vbi_line(itv, &d, &cc, &found_cc);
}
if (found_cc)
ivtv_write_vbi_cc_lines(itv, &cc);
return ret;
}
static void copy_vbi_data(struct ivtv *itv, int lines, u32 pts_stamp)
{
int line = 0;
int i;
u32 linemask[2] = { 0, 0 };
unsigned short size;
static const u8 mpeg_hdr_data[] = {
0x00, 0x00, 0x01, 0xba, 0x44, 0x00, 0x0c, 0x66,
0x24, 0x01, 0x01, 0xd1, 0xd3, 0xfa, 0xff, 0xff,
0x00, 0x00, 0x01, 0xbd, 0x00, 0x1a, 0x84, 0x80,
0x07, 0x21, 0x00, 0x5d, 0x63, 0xa7, 0xff, 0xff
};
const int sd = sizeof(mpeg_hdr_data); /* start of vbi data */
int idx = itv->vbi.frame % IVTV_VBI_FRAMES;
u8 *dst = &itv->vbi.sliced_mpeg_data[idx][0];
for (i = 0; i < lines; i++) {
int f, l;
if (itv->vbi.sliced_data[i].id == 0)
continue;
l = itv->vbi.sliced_data[i].line - 6;
f = itv->vbi.sliced_data[i].field;
if (f)
l += 18;
if (l < 32)
linemask[0] |= (1 << l);
else
linemask[1] |= (1 << (l - 32));
dst[sd + 12 + line * 43] =
ivtv_service2vbi(itv->vbi.sliced_data[i].id);
memcpy(dst + sd + 12 + line * 43 + 1, itv->vbi.sliced_data[i].data, 42);
line++;
}
memcpy(dst, mpeg_hdr_data, sizeof(mpeg_hdr_data));
if (line == 36) {
/* All lines are used, so there is no space for the linemask
(the max size of the VBI data is 36 * 43 + 4 bytes).
So in this case we use the magic number 'ITV0'. */
memcpy(dst + sd, "ITV0", 4);
memmove(dst + sd + 4, dst + sd + 12, line * 43);
size = 4 + ((43 * line + 3) & ~3);
} else {
memcpy(dst + sd, "itv0", 4);
cpu_to_le32s(&linemask[0]);
cpu_to_le32s(&linemask[1]);
memcpy(dst + sd + 4, &linemask[0], 8);
size = 12 + ((43 * line + 3) & ~3);
}
dst[4+16] = (size + 10) >> 8;
dst[5+16] = (size + 10) & 0xff;
dst[9+16] = 0x21 | ((pts_stamp >> 29) & 0x6);
dst[10+16] = (pts_stamp >> 22) & 0xff;
dst[11+16] = 1 | ((pts_stamp >> 14) & 0xff);
dst[12+16] = (pts_stamp >> 7) & 0xff;
dst[13+16] = 1 | ((pts_stamp & 0x7f) << 1);
itv->vbi.sliced_mpeg_size[idx] = sd + size;
}
static int ivtv_convert_ivtv_vbi(struct ivtv *itv, u8 *p)
{
u32 linemask[2];
int i, l, id2;
int line = 0;
if (!memcmp(p, "itv0", 4)) {
memcpy(linemask, p + 4, 8);
p += 12;
} else if (!memcmp(p, "ITV0", 4)) {
linemask[0] = 0xffffffff;
linemask[1] = 0xf;
p += 4;
} else {
/* unknown VBI data, convert to empty VBI frame */
linemask[0] = linemask[1] = 0;
}
for (i = 0; i < 36; i++) {
int err = 0;
if (i < 32 && !(linemask[0] & (1 << i)))
continue;
if (i >= 32 && !(linemask[1] & (1 << (i - 32))))
continue;
id2 = *p & 0xf;
switch (id2) {
case IVTV_SLICED_TYPE_TELETEXT_B:
id2 = V4L2_SLICED_TELETEXT_B;
break;
case IVTV_SLICED_TYPE_CAPTION_525:
id2 = V4L2_SLICED_CAPTION_525;
err = !odd_parity(p[1]) || !odd_parity(p[2]);
break;
case IVTV_SLICED_TYPE_VPS:
id2 = V4L2_SLICED_VPS;
break;
case IVTV_SLICED_TYPE_WSS_625:
id2 = V4L2_SLICED_WSS_625;
break;
default:
id2 = 0;
break;
}
if (err == 0) {
l = (i < 18) ? i + 6 : i - 18 + 6;
itv->vbi.sliced_dec_data[line].line = l;
itv->vbi.sliced_dec_data[line].field = i >= 18;
itv->vbi.sliced_dec_data[line].id = id2;
memcpy(itv->vbi.sliced_dec_data[line].data, p + 1, 42);
line++;
}
p += 43;
}
while (line < 36) {
itv->vbi.sliced_dec_data[line].id = 0;
itv->vbi.sliced_dec_data[line].line = 0;
itv->vbi.sliced_dec_data[line].field = 0;
line++;
}
return line * sizeof(itv->vbi.sliced_dec_data[0]);
}
/* Compress raw VBI format, removes leading SAV codes and surplus space after the
field.
Returns new compressed size. */
static u32 compress_raw_buf(struct ivtv *itv, u8 *buf, u32 size)
{
u32 line_size = itv->vbi.raw_decoder_line_size;
u32 lines = itv->vbi.count;
u8 sav1 = itv->vbi.raw_decoder_sav_odd_field;
u8 sav2 = itv->vbi.raw_decoder_sav_even_field;
u8 *q = buf;
u8 *p;
int i;
for (i = 0; i < lines; i++) {
p = buf + i * line_size;
/* Look for SAV code */
if (p[0] != 0xff || p[1] || p[2] || (p[3] != sav1 && p[3] != sav2)) {
break;
}
memcpy(q, p + 4, line_size - 4);
q += line_size - 4;
}
return lines * (line_size - 4);
}
/* Compressed VBI format, all found sliced blocks put next to one another
Returns new compressed size */
static u32 compress_sliced_buf(struct ivtv *itv, u32 line, u8 *buf, u32 size, u8 sav)
{
u32 line_size = itv->vbi.sliced_decoder_line_size;
struct v4l2_decode_vbi_line vbi;
int i;
unsigned lines = 0;
/* find the first valid line */
for (i = 0; i < size; i++, buf++) {
if (buf[0] == 0xff && !buf[1] && !buf[2] && buf[3] == sav)
break;
}
size -= i;
if (size < line_size) {
return line;
}
for (i = 0; i < size / line_size; i++) {
u8 *p = buf + i * line_size;
/* Look for SAV code */
if (p[0] != 0xff || p[1] || p[2] || p[3] != sav) {
continue;
}
vbi.p = p + 4;
v4l2_subdev_call(itv->sd_video, vbi, decode_vbi_line, &vbi);
if (vbi.type && !(lines & (1 << vbi.line))) {
lines |= 1 << vbi.line;
itv->vbi.sliced_data[line].id = vbi.type;
itv->vbi.sliced_data[line].field = vbi.is_second_field;
itv->vbi.sliced_data[line].line = vbi.line;
memcpy(itv->vbi.sliced_data[line].data, vbi.p, 42);
line++;
}
}
return line;
}
void ivtv_process_vbi_data(struct ivtv *itv, struct ivtv_buffer *buf,
u64 pts_stamp, int streamtype)
{
u8 *p = (u8 *) buf->buf;
u32 size = buf->bytesused;
int y;
/* Raw VBI data */
if (streamtype == IVTV_ENC_STREAM_TYPE_VBI && ivtv_raw_vbi(itv)) {
u8 type;
ivtv_buf_swap(buf);
type = p[3];
size = buf->bytesused = compress_raw_buf(itv, p, size);
/* second field of the frame? */
if (type == itv->vbi.raw_decoder_sav_even_field) {
/* Dirty hack needed for backwards
compatibility of old VBI software. */
p += size - 4;
memcpy(p, &itv->vbi.frame, 4);
itv->vbi.frame++;
}
return;
}
/* Sliced VBI data with data insertion */
if (streamtype == IVTV_ENC_STREAM_TYPE_VBI) {
int lines;
ivtv_buf_swap(buf);
/* first field */
lines = compress_sliced_buf(itv, 0, p, size / 2,
itv->vbi.sliced_decoder_sav_odd_field);
/* second field */
/* experimentation shows that the second half does not always begin
at the exact address. So start a bit earlier (hence 32). */
lines = compress_sliced_buf(itv, lines, p + size / 2 - 32, size / 2 + 32,
itv->vbi.sliced_decoder_sav_even_field);
/* always return at least one empty line */
if (lines == 0) {
itv->vbi.sliced_data[0].id = 0;
itv->vbi.sliced_data[0].line = 0;
itv->vbi.sliced_data[0].field = 0;
lines = 1;
}
buf->bytesused = size = lines * sizeof(itv->vbi.sliced_data[0]);
memcpy(p, &itv->vbi.sliced_data[0], size);
if (itv->vbi.insert_mpeg) {
copy_vbi_data(itv, lines, pts_stamp);
}
itv->vbi.frame++;
return;
}
/* Sliced VBI re-inserted from an MPEG stream */
if (streamtype == IVTV_DEC_STREAM_TYPE_VBI) {
/* If the size is not 4-byte aligned, then the starting address
for the swapping is also shifted. After swapping the data the
real start address of the VBI data is exactly 4 bytes after the
original start. It's a bit fiddly but it works like a charm.
Non-4-byte alignment happens when an lseek is done on the input
mpeg file to a non-4-byte aligned position. So on arrival here
the VBI data is also non-4-byte aligned. */
int offset = size & 3;
int cnt;
if (offset) {
p += 4 - offset;
}
/* Swap Buffer */
for (y = 0; y < size; y += 4) {
swab32s((u32 *)(p + y));
}
cnt = ivtv_convert_ivtv_vbi(itv, p + offset);
memcpy(buf->buf, itv->vbi.sliced_dec_data, cnt);
buf->bytesused = cnt;
ivtv_write_vbi(itv, itv->vbi.sliced_dec_data,
cnt / sizeof(itv->vbi.sliced_dec_data[0]));
return;
}
}
void ivtv_disable_cc(struct ivtv *itv)
{
struct vbi_cc cc = { .odd = { 0x80, 0x80 }, .even = { 0x80, 0x80 } };
clear_bit(IVTV_F_I_UPDATE_CC, &itv->i_flags);
ivtv_set_cc(itv, 0, &cc);
itv->vbi.cc_payload_idx = 0;
}
void ivtv_vbi_work_handler(struct ivtv *itv)
{
struct vbi_info *vi = &itv->vbi;
struct v4l2_sliced_vbi_data data;
struct vbi_cc cc = { .odd = { 0x80, 0x80 }, .even = { 0x80, 0x80 } };
/* Lock */
if (itv->output_mode == OUT_PASSTHROUGH) {
if (itv->is_50hz) {
data.id = V4L2_SLICED_WSS_625;
data.field = 0;
if (v4l2_subdev_call(itv->sd_video, vbi, g_vbi_data, &data) == 0) {
ivtv_set_wss(itv, 1, data.data[0] & 0xf);
vi->wss_missing_cnt = 0;
} else if (vi->wss_missing_cnt == 4) {
ivtv_set_wss(itv, 1, 0x8); /* 4x3 full format */
} else {
vi->wss_missing_cnt++;
}
}
else {
int mode = 0;
data.id = V4L2_SLICED_CAPTION_525;
data.field = 0;
if (v4l2_subdev_call(itv->sd_video, vbi, g_vbi_data, &data) == 0) {
mode |= 1;
cc.odd[0] = data.data[0];
cc.odd[1] = data.data[1];
}
data.field = 1;
if (v4l2_subdev_call(itv->sd_video, vbi, g_vbi_data, &data) == 0) {
mode |= 2;
cc.even[0] = data.data[0];
cc.even[1] = data.data[1];
}
if (mode) {
vi->cc_missing_cnt = 0;
ivtv_set_cc(itv, mode, &cc);
} else if (vi->cc_missing_cnt == 4) {
ivtv_set_cc(itv, 0, &cc);
} else {
vi->cc_missing_cnt++;
}
}
return;
}
if (test_and_clear_bit(IVTV_F_I_UPDATE_WSS, &itv->i_flags)) {
ivtv_set_wss(itv, 1, vi->wss_payload & 0xf);
}
if (test_bit(IVTV_F_I_UPDATE_CC, &itv->i_flags)) {
if (vi->cc_payload_idx == 0) {
clear_bit(IVTV_F_I_UPDATE_CC, &itv->i_flags);
ivtv_set_cc(itv, 3, &cc);
}
while (vi->cc_payload_idx) {
cc = vi->cc_payload[0];
memmove(vi->cc_payload, vi->cc_payload + 1,
sizeof(vi->cc_payload) - sizeof(vi->cc_payload[0]));
vi->cc_payload_idx--;
if (vi->cc_payload_idx && cc.odd[0] == 0x80 && cc.odd[1] == 0x80)
continue;
ivtv_set_cc(itv, 3, &cc);
break;
}
}
if (test_and_clear_bit(IVTV_F_I_UPDATE_VPS, &itv->i_flags)) {
ivtv_set_vps(itv, 1);
}
}

34
drivers/media/pci/ivtv/ivtv-vbi.h Normal file
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/*
Vertical Blank Interval support functions
Copyright (C) 2004-2007 Hans Verkuil <hverkuil@xs4all.nl>
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 IVTV_VBI_H
#define IVTV_VBI_H
ssize_t
ivtv_write_vbi_from_user(struct ivtv *itv,
const struct v4l2_sliced_vbi_data __user *sliced,
size_t count);
void ivtv_process_vbi_data(struct ivtv *itv, struct ivtv_buffer *buf,
u64 pts_stamp, int streamtype);
int ivtv_used_line(struct ivtv *itv, int line, int field);
void ivtv_disable_cc(struct ivtv *itv);
void ivtv_set_vbi(unsigned long arg);
void ivtv_vbi_work_handler(struct ivtv *itv);
#endif

26
drivers/media/pci/ivtv/ivtv-version.h Normal file
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/*
ivtv driver version information
Copyright (C) 2005-2007 Hans Verkuil <hverkuil@xs4all.nl>
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 IVTV_VERSION_H
#define IVTV_VERSION_H
#define IVTV_DRIVER_NAME "ivtv"
#define IVTV_VERSION "1.4.3"
#endif

1296
drivers/media/pci/ivtv/ivtv-yuv.c Normal file
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44
drivers/media/pci/ivtv/ivtv-yuv.h Normal file
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/*
yuv support
Copyright (C) 2007 Ian Armstrong <ian@iarmst.demon.co.uk>
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 IVTV_YUV_H
#define IVTV_YUV_H
#define IVTV_YUV_BUFFER_UV_OFFSET 0x65400 /* Offset to UV Buffer */
/* Offset to filter table in firmware */
#define IVTV_YUV_HORIZONTAL_FILTER_OFFSET 0x025d8
#define IVTV_YUV_VERTICAL_FILTER_OFFSET 0x03358
#define IVTV_YUV_UPDATE_HORIZONTAL 0x01
#define IVTV_YUV_UPDATE_VERTICAL 0x02
#define IVTV_YUV_UPDATE_INVALID 0x04
extern const u32 yuv_offset[IVTV_YUV_BUFFERS];
int ivtv_yuv_filter_check(struct ivtv *itv);
void ivtv_yuv_setup_stream_frame(struct ivtv *itv);
int ivtv_yuv_udma_stream_frame(struct ivtv *itv, void __user *src);
void ivtv_yuv_frame_complete(struct ivtv *itv);
int ivtv_yuv_prep_frame(struct ivtv *itv, struct ivtv_dma_frame *args);
void ivtv_yuv_close(struct ivtv *itv);
void ivtv_yuv_work_handler(struct ivtv *itv);
#endif

1316
drivers/media/pci/ivtv/ivtvfb.c Normal file
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