Initial commit; kernel source import

drivers/media/usb/hdpvr/Kconfig

@@ -0,0 +1,10 @@
+
+config VIDEO_HDPVR
+	tristate "Hauppauge HD PVR support"
+	depends on VIDEO_DEV
+	---help---
+	  This is a video4linux driver for Hauppauge's HD PVR USB device.
+
+	  To compile this driver as a module, choose M here: the
+	  module will be called hdpvr
+

drivers/media/usb/hdpvr/Makefile

@@ -0,0 +1,7 @@
+hdpvr-objs	:= hdpvr-control.o hdpvr-core.o hdpvr-video.o hdpvr-i2c.o
+
+obj-$(CONFIG_VIDEO_HDPVR) += hdpvr.o
+
+ccflags-y += -Idrivers/media/i2c
+
+ccflags-y += $(extra-cflags-y) $(extra-cflags-m)

drivers/media/usb/hdpvr/hdpvr-control.c

@@ -0,0 +1,200 @@
+/*
+ * Hauppauge HD PVR USB driver - video 4 linux 2 interface
+ *
+ * Copyright (C) 2008      Janne Grunau (j@jannau.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, version 2.
+ *
+ */
+
+#include <linux/kernel.h>
+#include <linux/errno.h>
+#include <linux/init.h>
+#include <linux/slab.h>
+#include <linux/module.h>
+#include <linux/usb.h>
+#include <linux/mutex.h>
+
+#include <linux/videodev2.h>
+
+#include <media/v4l2-common.h>
+
+#include "hdpvr.h"
+
+
+int hdpvr_config_call(struct hdpvr_device *dev, uint value, u8 valbuf)
+{
+	int ret;
+	char request_type = 0x38, snd_request = 0x01;
+
+	mutex_lock(&dev->usbc_mutex);
+	dev->usbc_buf[0] = valbuf;
+	ret = usb_control_msg(dev->udev,
+			      usb_sndctrlpipe(dev->udev, 0),
+			      snd_request, 0x00 | request_type,
+			      value, CTRL_DEFAULT_INDEX,
+			      dev->usbc_buf, 1, 10000);
+
+	mutex_unlock(&dev->usbc_mutex);
+	v4l2_dbg(MSG_INFO, hdpvr_debug, &dev->v4l2_dev,
+		 "config call request for value 0x%x returned %d\n", value,
+		 ret);
+
+	return ret < 0 ? ret : 0;
+}
+
+struct hdpvr_video_info *get_video_info(struct hdpvr_device *dev)
+{
+	struct hdpvr_video_info *vidinf = NULL;
+#ifdef HDPVR_DEBUG
+	char print_buf[15];
+#endif
+	int ret;
+
+	vidinf = kzalloc(sizeof(struct hdpvr_video_info), GFP_KERNEL);
+	if (!vidinf) {
+		v4l2_err(&dev->v4l2_dev, "out of memory\n");
+		goto err;
+	}
+
+	mutex_lock(&dev->usbc_mutex);
+	ret = usb_control_msg(dev->udev,
+			      usb_rcvctrlpipe(dev->udev, 0),
+			      0x81, 0x80 | 0x38,
+			      0x1400, 0x0003,
+			      dev->usbc_buf, 5,
+			      1000);
+	if (ret == 5) {
+		vidinf->width	= dev->usbc_buf[1] << 8 | dev->usbc_buf[0];
+		vidinf->height	= dev->usbc_buf[3] << 8 | dev->usbc_buf[2];
+		vidinf->fps	= dev->usbc_buf[4];
+	}
+
+#ifdef HDPVR_DEBUG
+	if (hdpvr_debug & MSG_INFO) {
+		hex_dump_to_buffer(dev->usbc_buf, 5, 16, 1, print_buf,
+				   sizeof(print_buf), 0);
+		v4l2_dbg(MSG_INFO, hdpvr_debug, &dev->v4l2_dev,
+			 "get video info returned: %d, %s\n", ret, print_buf);
+	}
+#endif
+	mutex_unlock(&dev->usbc_mutex);
+
+	if (!vidinf->width || !vidinf->height || !vidinf->fps) {
+		kfree(vidinf);
+		vidinf = NULL;
+	}
+err:
+	return vidinf;
+}
+
+int get_input_lines_info(struct hdpvr_device *dev)
+{
+#ifdef HDPVR_DEBUG
+	char print_buf[9];
+#endif
+	int ret, lines;
+
+	mutex_lock(&dev->usbc_mutex);
+	ret = usb_control_msg(dev->udev,
+			      usb_rcvctrlpipe(dev->udev, 0),
+			      0x81, 0x80 | 0x38,
+			      0x1800, 0x0003,
+			      dev->usbc_buf, 3,
+			      1000);
+
+#ifdef HDPVR_DEBUG
+	if (hdpvr_debug & MSG_INFO) {
+		hex_dump_to_buffer(dev->usbc_buf, 3, 16, 1, print_buf,
+				   sizeof(print_buf), 0);
+		v4l2_dbg(MSG_INFO, hdpvr_debug, &dev->v4l2_dev,
+			 "get input lines info returned: %d, %s\n", ret,
+			 print_buf);
+	}
+#else
+	(void)ret;	/* suppress compiler warning */
+#endif
+	lines = dev->usbc_buf[1] << 8 | dev->usbc_buf[0];
+	mutex_unlock(&dev->usbc_mutex);
+	return lines;
+}
+
+
+int hdpvr_set_bitrate(struct hdpvr_device *dev)
+{
+	int ret;
+
+	mutex_lock(&dev->usbc_mutex);
+	memset(dev->usbc_buf, 0, 4);
+	dev->usbc_buf[0] = dev->options.bitrate;
+	dev->usbc_buf[2] = dev->options.peak_bitrate;
+
+	ret = usb_control_msg(dev->udev,
+			      usb_sndctrlpipe(dev->udev, 0),
+			      0x01, 0x38, CTRL_BITRATE_VALUE,
+			      CTRL_DEFAULT_INDEX, dev->usbc_buf, 4, 1000);
+	mutex_unlock(&dev->usbc_mutex);
+
+	return ret;
+}
+
+int hdpvr_set_audio(struct hdpvr_device *dev, u8 input,
+		    enum v4l2_mpeg_audio_encoding codec)
+{
+	int ret = 0;
+
+	if (dev->flags & HDPVR_FLAG_AC3_CAP) {
+		mutex_lock(&dev->usbc_mutex);
+		memset(dev->usbc_buf, 0, 2);
+		dev->usbc_buf[0] = input;
+		if (codec == V4L2_MPEG_AUDIO_ENCODING_AAC)
+			dev->usbc_buf[1] = 0;
+		else if (codec == V4L2_MPEG_AUDIO_ENCODING_AC3)
+			dev->usbc_buf[1] = 1;
+		else {
+			mutex_unlock(&dev->usbc_mutex);
+			v4l2_err(&dev->v4l2_dev, "invalid audio codec %d\n",
+				 codec);
+			ret = -EINVAL;
+			goto error;
+		}
+
+		ret = usb_control_msg(dev->udev,
+				      usb_sndctrlpipe(dev->udev, 0),
+				      0x01, 0x38, CTRL_AUDIO_INPUT_VALUE,
+				      CTRL_DEFAULT_INDEX, dev->usbc_buf, 2,
+				      1000);
+		mutex_unlock(&dev->usbc_mutex);
+		if (ret == 2)
+			ret = 0;
+	} else
+		ret = hdpvr_config_call(dev, CTRL_AUDIO_INPUT_VALUE, input);
+error:
+	return ret;
+}
+
+int hdpvr_set_options(struct hdpvr_device *dev)
+{
+	hdpvr_config_call(dev, CTRL_VIDEO_STD_TYPE, dev->options.video_std);
+
+	hdpvr_config_call(dev, CTRL_VIDEO_INPUT_VALUE,
+			 dev->options.video_input+1);
+
+	hdpvr_set_audio(dev, dev->options.audio_input+1,
+		       dev->options.audio_codec);
+
+	hdpvr_set_bitrate(dev);
+	hdpvr_config_call(dev, CTRL_BITRATE_MODE_VALUE,
+			 dev->options.bitrate_mode);
+	hdpvr_config_call(dev, CTRL_GOP_MODE_VALUE, dev->options.gop_mode);
+
+	hdpvr_config_call(dev, CTRL_BRIGHTNESS, dev->options.brightness);
+	hdpvr_config_call(dev, CTRL_CONTRAST,   dev->options.contrast);
+	hdpvr_config_call(dev, CTRL_HUE,        dev->options.hue);
+	hdpvr_config_call(dev, CTRL_SATURATION, dev->options.saturation);
+	hdpvr_config_call(dev, CTRL_SHARPNESS,  dev->options.sharpness);
+
+	return 0;
+}

drivers/media/usb/hdpvr/hdpvr-core.c

@@ -0,0 +1,478 @@
+/*
+ * Hauppauge HD PVR USB driver
+ *
+ * Copyright (C) 2001-2004 Greg Kroah-Hartman (greg@kroah.com)
+ * Copyright (C) 2008      Janne Grunau (j@jannau.net)
+ * Copyright (C) 2008      John Poet
+ *
+ *	This program is free software; you can redistribute it and/or
+ *	modify it under the terms of the GNU General Public License as
+ *	published by the Free Software Foundation, version 2.
+ *
+ */
+
+#include <linux/kernel.h>
+#include <linux/errno.h>
+#include <linux/init.h>
+#include <linux/slab.h>
+#include <linux/module.h>
+#include <linux/uaccess.h>
+#include <linux/atomic.h>
+#include <linux/usb.h>
+#include <linux/mutex.h>
+#include <linux/i2c.h>
+
+#include <linux/videodev2.h>
+#include <media/v4l2-dev.h>
+#include <media/v4l2-common.h>
+
+#include "hdpvr.h"
+
+static int video_nr[HDPVR_MAX] = {[0 ... (HDPVR_MAX - 1)] = UNSET};
+module_param_array(video_nr, int, NULL, 0);
+MODULE_PARM_DESC(video_nr, "video device number (-1=Auto)");
+
+/* holds the number of currently registered devices */
+static atomic_t dev_nr = ATOMIC_INIT(-1);
+
+int hdpvr_debug;
+module_param(hdpvr_debug, int, S_IRUGO|S_IWUSR);
+MODULE_PARM_DESC(hdpvr_debug, "enable debugging output");
+
+static uint default_video_input = HDPVR_VIDEO_INPUTS;
+module_param(default_video_input, uint, S_IRUGO|S_IWUSR);
+MODULE_PARM_DESC(default_video_input, "default video input: 0=Component / "
+		 "1=S-Video / 2=Composite");
+
+static uint default_audio_input = HDPVR_AUDIO_INPUTS;
+module_param(default_audio_input, uint, S_IRUGO|S_IWUSR);
+MODULE_PARM_DESC(default_audio_input, "default audio input: 0=RCA back / "
+		 "1=RCA front / 2=S/PDIF");
+
+static bool boost_audio;
+module_param(boost_audio, bool, S_IRUGO|S_IWUSR);
+MODULE_PARM_DESC(boost_audio, "boost the audio signal");
+
+
+/* table of devices that work with this driver */
+static struct usb_device_id hdpvr_table[] = {
+	{ USB_DEVICE(HD_PVR_VENDOR_ID, HD_PVR_PRODUCT_ID) },
+	{ USB_DEVICE(HD_PVR_VENDOR_ID, HD_PVR_PRODUCT_ID1) },
+	{ USB_DEVICE(HD_PVR_VENDOR_ID, HD_PVR_PRODUCT_ID2) },
+	{ USB_DEVICE(HD_PVR_VENDOR_ID, HD_PVR_PRODUCT_ID3) },
+	{ USB_DEVICE(HD_PVR_VENDOR_ID, HD_PVR_PRODUCT_ID4) },
+	{ }					/* Terminating entry */
+};
+MODULE_DEVICE_TABLE(usb, hdpvr_table);
+
+
+void hdpvr_delete(struct hdpvr_device *dev)
+{
+	hdpvr_free_buffers(dev);
+
+	if (dev->video_dev)
+		video_device_release(dev->video_dev);
+
+	usb_put_dev(dev->udev);
+}
+
+static void challenge(u8 *bytes)
+{
+	u64 *i64P, tmp64;
+	uint i, idx;
+
+	for (idx = 0; idx < 32; ++idx) {
+
+		if (idx & 0x3)
+			bytes[(idx >> 3) + 3] = bytes[(idx >> 2) & 0x3];
+
+		switch (idx & 0x3) {
+		case 0x3:
+			bytes[2] += bytes[3] * 4 + bytes[4] + bytes[5];
+			bytes[4] += bytes[(idx & 0x1) * 2] * 9 + 9;
+			break;
+		case 0x1:
+			bytes[0] *= 8;
+			bytes[0] += 7*idx + 4;
+			bytes[6] += bytes[3] * 3;
+			break;
+		case 0x0:
+			bytes[3 - (idx >> 3)] = bytes[idx >> 2];
+			bytes[5] += bytes[6] * 3;
+			for (i = 0; i < 3; i++)
+				bytes[3] *= bytes[3] + 1;
+			break;
+		case 0x2:
+			for (i = 0; i < 3; i++)
+				bytes[1] *= bytes[6] + 1;
+			for (i = 0; i < 3; i++) {
+				i64P = (u64 *)bytes;
+				tmp64 = le64_to_cpup(i64P);
+				tmp64 <<= bytes[7] & 0x0f;
+				*i64P += cpu_to_le64(tmp64);
+			}
+			break;
+		}
+	}
+}
+
+/* try to init the device like the windows driver */
+static int device_authorization(struct hdpvr_device *dev)
+{
+
+	int ret, retval = -ENOMEM;
+	char request_type = 0x38, rcv_request = 0x81;
+	char *response;
+#ifdef HDPVR_DEBUG
+	size_t buf_size = 46;
+	char *print_buf = kzalloc(5*buf_size+1, GFP_KERNEL);
+	if (!print_buf) {
+		v4l2_err(&dev->v4l2_dev, "Out of memory\n");
+		return retval;
+	}
+#endif
+
+	mutex_lock(&dev->usbc_mutex);
+	ret = usb_control_msg(dev->udev,
+			      usb_rcvctrlpipe(dev->udev, 0),
+			      rcv_request, 0x80 | request_type,
+			      0x0400, 0x0003,
+			      dev->usbc_buf, 46,
+			      10000);
+	if (ret != 46) {
+		v4l2_err(&dev->v4l2_dev,
+			 "unexpected answer of status request, len %d\n", ret);
+		goto unlock;
+	}
+#ifdef HDPVR_DEBUG
+	else {
+		hex_dump_to_buffer(dev->usbc_buf, 46, 16, 1, print_buf,
+				   5*buf_size+1, 0);
+		v4l2_dbg(MSG_INFO, hdpvr_debug, &dev->v4l2_dev,
+			 "Status request returned, len %d: %s\n",
+			 ret, print_buf);
+	}
+#endif
+
+	dev->fw_ver = dev->usbc_buf[1];
+
+	v4l2_info(&dev->v4l2_dev, "firmware version 0x%x dated %s\n",
+			  dev->fw_ver, &dev->usbc_buf[2]);
+
+	if (dev->fw_ver > 0x15) {
+		dev->options.brightness	= 0x80;
+		dev->options.contrast	= 0x40;
+		dev->options.hue	= 0xf;
+		dev->options.saturation	= 0x40;
+		dev->options.sharpness	= 0x80;
+	}
+
+	switch (dev->fw_ver) {
+	case HDPVR_FIRMWARE_VERSION:
+		dev->flags &= ~HDPVR_FLAG_AC3_CAP;
+		break;
+	case HDPVR_FIRMWARE_VERSION_AC3:
+	case HDPVR_FIRMWARE_VERSION_0X12:
+	case HDPVR_FIRMWARE_VERSION_0X15:
+	case HDPVR_FIRMWARE_VERSION_0X1E:
+		dev->flags |= HDPVR_FLAG_AC3_CAP;
+		break;
+	default:
+		v4l2_info(&dev->v4l2_dev, "untested firmware, the driver might"
+			  " not work.\n");
+		if (dev->fw_ver >= HDPVR_FIRMWARE_VERSION_AC3)
+			dev->flags |= HDPVR_FLAG_AC3_CAP;
+		else
+			dev->flags &= ~HDPVR_FLAG_AC3_CAP;
+	}
+
+	response = dev->usbc_buf+38;
+#ifdef HDPVR_DEBUG
+	hex_dump_to_buffer(response, 8, 16, 1, print_buf, 5*buf_size+1, 0);
+	v4l2_dbg(MSG_INFO, hdpvr_debug, &dev->v4l2_dev, "challenge: %s\n",
+		 print_buf);
+#endif
+	challenge(response);
+#ifdef HDPVR_DEBUG
+	hex_dump_to_buffer(response, 8, 16, 1, print_buf, 5*buf_size+1, 0);
+	v4l2_dbg(MSG_INFO, hdpvr_debug, &dev->v4l2_dev, " response: %s\n",
+		 print_buf);
+	kfree(print_buf);
+#endif
+
+	msleep(100);
+	ret = usb_control_msg(dev->udev,
+			      usb_sndctrlpipe(dev->udev, 0),
+			      0xd1, 0x00 | request_type,
+			      0x0000, 0x0000,
+			      response, 8,
+			      10000);
+	v4l2_dbg(MSG_INFO, hdpvr_debug, &dev->v4l2_dev,
+		 "magic request returned %d\n", ret);
+
+	retval = ret != 8;
+unlock:
+	mutex_unlock(&dev->usbc_mutex);
+	return retval;
+}
+
+static int hdpvr_device_init(struct hdpvr_device *dev)
+{
+	int ret;
+	u8 *buf;
+	struct hdpvr_video_info *vidinf;
+
+	if (device_authorization(dev))
+		return -EACCES;
+
+	/* default options for init */
+	hdpvr_set_options(dev);
+
+	/* set filter options */
+	mutex_lock(&dev->usbc_mutex);
+	buf = dev->usbc_buf;
+	buf[0] = 0x03; buf[1] = 0x03; buf[2] = 0x00; buf[3] = 0x00;
+	ret = usb_control_msg(dev->udev,
+			      usb_sndctrlpipe(dev->udev, 0),
+			      0x01, 0x38,
+			      CTRL_LOW_PASS_FILTER_VALUE, CTRL_DEFAULT_INDEX,
+			      buf, 4,
+			      1000);
+	v4l2_dbg(MSG_INFO, hdpvr_debug, &dev->v4l2_dev,
+		 "control request returned %d\n", ret);
+	mutex_unlock(&dev->usbc_mutex);
+
+	vidinf = get_video_info(dev);
+	if (!vidinf)
+		v4l2_dbg(MSG_INFO, hdpvr_debug, &dev->v4l2_dev,
+			"no valid video signal or device init failed\n");
+	else
+		kfree(vidinf);
+
+	/* enable fan and bling leds */
+	mutex_lock(&dev->usbc_mutex);
+	buf[0] = 0x1;
+	ret = usb_control_msg(dev->udev,
+			      usb_sndctrlpipe(dev->udev, 0),
+			      0xd4, 0x38, 0, 0, buf, 1,
+			      1000);
+	v4l2_dbg(MSG_INFO, hdpvr_debug, &dev->v4l2_dev,
+		 "control request returned %d\n", ret);
+
+	/* boost analog audio */
+	buf[0] = boost_audio;
+	ret = usb_control_msg(dev->udev,
+			      usb_sndctrlpipe(dev->udev, 0),
+			      0xd5, 0x38, 0, 0, buf, 1,
+			      1000);
+	v4l2_dbg(MSG_INFO, hdpvr_debug, &dev->v4l2_dev,
+		 "control request returned %d\n", ret);
+	mutex_unlock(&dev->usbc_mutex);
+
+	dev->status = STATUS_IDLE;
+	return 0;
+}
+
+static const struct hdpvr_options hdpvr_default_options = {
+	.video_std	= HDPVR_60HZ,
+	.video_input	= HDPVR_COMPONENT,
+	.audio_input	= HDPVR_RCA_BACK,
+	.bitrate	= 65, /* 6 mbps */
+	.peak_bitrate	= 90, /* 9 mbps */
+	.bitrate_mode	= HDPVR_CONSTANT,
+	.gop_mode	= HDPVR_SIMPLE_IDR_GOP,
+	.audio_codec	= V4L2_MPEG_AUDIO_ENCODING_AAC,
+	/* original picture controls for firmware version <= 0x15 */
+	/* updated in device_authorization() for newer firmware */
+	.brightness	= 0x86,
+	.contrast	= 0x80,
+	.hue		= 0x80,
+	.saturation	= 0x80,
+	.sharpness	= 0x80,
+};
+
+static int hdpvr_probe(struct usb_interface *interface,
+		       const struct usb_device_id *id)
+{
+	struct hdpvr_device *dev;
+	struct usb_host_interface *iface_desc;
+	struct usb_endpoint_descriptor *endpoint;
+	struct i2c_client *client;
+	size_t buffer_size;
+	int i;
+	int retval = -ENOMEM;
+
+	/* allocate memory for our device state and initialize it */
+	dev = kzalloc(sizeof(*dev), GFP_KERNEL);
+	if (!dev) {
+		dev_err(&interface->dev, "Out of memory\n");
+		goto error;
+	}
+
+	dev->workqueue = 0;
+
+	/* init video transfer queues first of all */
+	/* to prevent oops in hdpvr_delete() on error paths */
+	INIT_LIST_HEAD(&dev->free_buff_list);
+	INIT_LIST_HEAD(&dev->rec_buff_list);
+
+	/* register v4l2_device early so it can be used for printks */
+	if (v4l2_device_register(&interface->dev, &dev->v4l2_dev)) {
+		dev_err(&interface->dev, "v4l2_device_register failed\n");
+		goto error;
+	}
+
+	mutex_init(&dev->io_mutex);
+	mutex_init(&dev->i2c_mutex);
+	mutex_init(&dev->usbc_mutex);
+	dev->usbc_buf = kmalloc(64, GFP_KERNEL);
+	if (!dev->usbc_buf) {
+		v4l2_err(&dev->v4l2_dev, "Out of memory\n");
+		goto error;
+	}
+
+	init_waitqueue_head(&dev->wait_buffer);
+	init_waitqueue_head(&dev->wait_data);
+
+	dev->workqueue = create_singlethread_workqueue("hdpvr_buffer");
+	if (!dev->workqueue)
+		goto error;
+
+	dev->options = hdpvr_default_options;
+
+	if (default_video_input < HDPVR_VIDEO_INPUTS)
+		dev->options.video_input = default_video_input;
+
+	if (default_audio_input < HDPVR_AUDIO_INPUTS) {
+		dev->options.audio_input = default_audio_input;
+		if (default_audio_input == HDPVR_SPDIF)
+			dev->options.audio_codec =
+				V4L2_MPEG_AUDIO_ENCODING_AC3;
+	}
+
+	dev->udev = usb_get_dev(interface_to_usbdev(interface));
+
+	/* set up the endpoint information */
+	/* use only the first bulk-in and bulk-out endpoints */
+	iface_desc = interface->cur_altsetting;
+	for (i = 0; i < iface_desc->desc.bNumEndpoints; ++i) {
+		endpoint = &iface_desc->endpoint[i].desc;
+
+		if (!dev->bulk_in_endpointAddr &&
+		    usb_endpoint_is_bulk_in(endpoint)) {
+			/* USB interface description is buggy, reported max
+			 * packet size is 512 bytes, windows driver uses 8192 */
+			buffer_size = 8192;
+			dev->bulk_in_size = buffer_size;
+			dev->bulk_in_endpointAddr = endpoint->bEndpointAddress;
+		}
+
+	}
+	if (!dev->bulk_in_endpointAddr) {
+		v4l2_err(&dev->v4l2_dev, "Could not find bulk-in endpoint\n");
+		goto error;
+	}
+
+	/* init the device */
+	if (hdpvr_device_init(dev)) {
+		v4l2_err(&dev->v4l2_dev, "device init failed\n");
+		goto error;
+	}
+
+	mutex_lock(&dev->io_mutex);
+	if (hdpvr_alloc_buffers(dev, NUM_BUFFERS)) {
+		mutex_unlock(&dev->io_mutex);
+		v4l2_err(&dev->v4l2_dev,
+			 "allocating transfer buffers failed\n");
+		goto error;
+	}
+	mutex_unlock(&dev->io_mutex);
+
+#if IS_ENABLED(CONFIG_I2C)
+	retval = hdpvr_register_i2c_adapter(dev);
+	if (retval < 0) {
+		v4l2_err(&dev->v4l2_dev, "i2c adapter register failed\n");
+		goto error;
+	}
+
+	client = hdpvr_register_ir_rx_i2c(dev);
+	if (!client) {
+		v4l2_err(&dev->v4l2_dev, "i2c IR RX device register failed\n");
+		retval = -ENODEV;
+		goto reg_fail;
+	}
+
+	client = hdpvr_register_ir_tx_i2c(dev);
+	if (!client) {
+		v4l2_err(&dev->v4l2_dev, "i2c IR TX device register failed\n");
+		retval = -ENODEV;
+		goto reg_fail;
+	}
+#endif
+
+	retval = hdpvr_register_videodev(dev, &interface->dev,
+				    video_nr[atomic_inc_return(&dev_nr)]);
+	if (retval < 0) {
+		v4l2_err(&dev->v4l2_dev, "registering videodev failed\n");
+		goto reg_fail;
+	}
+
+	/* let the user know what node this device is now attached to */
+	v4l2_info(&dev->v4l2_dev, "device now attached to %s\n",
+		  video_device_node_name(dev->video_dev));
+	return 0;
+
+reg_fail:
+#if IS_ENABLED(CONFIG_I2C)
+	i2c_del_adapter(&dev->i2c_adapter);
+#endif
+error:
+	if (dev) {
+		/* Destroy single thread */
+		if (dev->workqueue)
+			destroy_workqueue(dev->workqueue);
+		/* this frees allocated memory */
+		hdpvr_delete(dev);
+	}
+	return retval;
+}
+
+static void hdpvr_disconnect(struct usb_interface *interface)
+{
+	struct hdpvr_device *dev = to_hdpvr_dev(usb_get_intfdata(interface));
+
+	v4l2_info(&dev->v4l2_dev, "device %s disconnected\n",
+		  video_device_node_name(dev->video_dev));
+	/* prevent more I/O from starting and stop any ongoing */
+	mutex_lock(&dev->io_mutex);
+	dev->status = STATUS_DISCONNECTED;
+	wake_up_interruptible(&dev->wait_data);
+	wake_up_interruptible(&dev->wait_buffer);
+	mutex_unlock(&dev->io_mutex);
+	v4l2_device_disconnect(&dev->v4l2_dev);
+	msleep(100);
+	flush_workqueue(dev->workqueue);
+	mutex_lock(&dev->io_mutex);
+	hdpvr_cancel_queue(dev);
+	mutex_unlock(&dev->io_mutex);
+#if IS_ENABLED(CONFIG_I2C)
+	i2c_del_adapter(&dev->i2c_adapter);
+#endif
+	video_unregister_device(dev->video_dev);
+	atomic_dec(&dev_nr);
+}
+
+
+static struct usb_driver hdpvr_usb_driver = {
+	.name =		"hdpvr",
+	.probe =	hdpvr_probe,
+	.disconnect =	hdpvr_disconnect,
+	.id_table =	hdpvr_table,
+};
+
+module_usb_driver(hdpvr_usb_driver);
+
+MODULE_LICENSE("GPL");
+MODULE_VERSION("0.2.1");
+MODULE_AUTHOR("Janne Grunau");
+MODULE_DESCRIPTION("Hauppauge HD PVR driver");

drivers/media/usb/hdpvr/hdpvr-i2c.c

@@ -0,0 +1,230 @@
+
+/*
+ * Hauppauge HD PVR USB driver
+ *
+ * Copyright (C) 2008      Janne Grunau (j@jannau.net)
+ *
+ * IR device registration code is
+ * Copyright (C) 2010	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, version 2.
+ *
+ */
+
+#if IS_ENABLED(CONFIG_I2C)
+
+#include <linux/i2c.h>
+#include <linux/slab.h>
+#include <linux/export.h>
+
+#include "hdpvr.h"
+
+#define CTRL_READ_REQUEST	0xb8
+#define CTRL_WRITE_REQUEST	0x38
+
+#define REQTYPE_I2C_READ	0xb1
+#define REQTYPE_I2C_WRITE	0xb0
+#define REQTYPE_I2C_WRITE_STATT	0xd0
+
+#define Z8F0811_IR_TX_I2C_ADDR	0x70
+#define Z8F0811_IR_RX_I2C_ADDR	0x71
+
+
+struct i2c_client *hdpvr_register_ir_tx_i2c(struct hdpvr_device *dev)
+{
+	struct IR_i2c_init_data *init_data = &dev->ir_i2c_init_data;
+	struct i2c_board_info hdpvr_ir_tx_i2c_board_info = {
+		I2C_BOARD_INFO("ir_tx_z8f0811_hdpvr", Z8F0811_IR_TX_I2C_ADDR),
+	};
+
+	init_data->name = "HD-PVR";
+	hdpvr_ir_tx_i2c_board_info.platform_data = init_data;
+
+	return i2c_new_device(&dev->i2c_adapter, &hdpvr_ir_tx_i2c_board_info);
+}
+
+struct i2c_client *hdpvr_register_ir_rx_i2c(struct hdpvr_device *dev)
+{
+	struct IR_i2c_init_data *init_data = &dev->ir_i2c_init_data;
+	struct i2c_board_info hdpvr_ir_rx_i2c_board_info = {
+		I2C_BOARD_INFO("ir_rx_z8f0811_hdpvr", Z8F0811_IR_RX_I2C_ADDR),
+	};
+
+	/* Our default information for ir-kbd-i2c.c to use */
+	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 = "HD-PVR";
+	init_data->polling_interval = 405; /* ms, duplicated from Windows */
+	hdpvr_ir_rx_i2c_board_info.platform_data = init_data;
+
+	return i2c_new_device(&dev->i2c_adapter, &hdpvr_ir_rx_i2c_board_info);
+}
+
+static int hdpvr_i2c_read(struct hdpvr_device *dev, int bus,
+			  unsigned char addr, char *wdata, int wlen,
+			  char *data, int len)
+{
+	int ret;
+
+	if ((len > sizeof(dev->i2c_buf)) || (wlen > sizeof(dev->i2c_buf)))
+		return -EINVAL;
+
+	if (wlen) {
+		memcpy(&dev->i2c_buf, wdata, wlen);
+		ret = usb_control_msg(dev->udev, usb_sndctrlpipe(dev->udev, 0),
+				      REQTYPE_I2C_WRITE, CTRL_WRITE_REQUEST,
+				      (bus << 8) | addr, 0, &dev->i2c_buf,
+				      wlen, 1000);
+		if (ret < 0)
+			return ret;
+	}
+
+	ret = usb_control_msg(dev->udev, usb_rcvctrlpipe(dev->udev, 0),
+			      REQTYPE_I2C_READ, CTRL_READ_REQUEST,
+			      (bus << 8) | addr, 0, &dev->i2c_buf, len, 1000);
+
+	if (ret == len) {
+		memcpy(data, &dev->i2c_buf, len);
+		ret = 0;
+	} else if (ret >= 0)
+		ret = -EIO;
+
+	return ret;
+}
+
+static int hdpvr_i2c_write(struct hdpvr_device *dev, int bus,
+			   unsigned char addr, char *data, int len)
+{
+	int ret;
+
+	if (len > sizeof(dev->i2c_buf))
+		return -EINVAL;
+
+	memcpy(&dev->i2c_buf, data, len);
+	ret = usb_control_msg(dev->udev, usb_sndctrlpipe(dev->udev, 0),
+			      REQTYPE_I2C_WRITE, CTRL_WRITE_REQUEST,
+			      (bus << 8) | addr, 0, &dev->i2c_buf, len, 1000);
+
+	if (ret < 0)
+		return ret;
+
+	ret = usb_control_msg(dev->udev, usb_rcvctrlpipe(dev->udev, 0),
+			      REQTYPE_I2C_WRITE_STATT, CTRL_READ_REQUEST,
+			      0, 0, &dev->i2c_buf, 2, 1000);
+
+	if ((ret == 2) && (dev->i2c_buf[1] == (len - 1)))
+		ret = 0;
+	else if (ret >= 0)
+		ret = -EIO;
+
+	return ret;
+}
+
+static int hdpvr_transfer(struct i2c_adapter *i2c_adapter, struct i2c_msg *msgs,
+			  int num)
+{
+	struct hdpvr_device *dev = i2c_get_adapdata(i2c_adapter);
+	int retval = 0, addr;
+
+	if (num <= 0)
+		return 0;
+
+	mutex_lock(&dev->i2c_mutex);
+
+	addr = msgs[0].addr << 1;
+
+	if (num == 1) {
+		if (msgs[0].flags & I2C_M_RD)
+			retval = hdpvr_i2c_read(dev, 1, addr, NULL, 0,
+						msgs[0].buf, msgs[0].len);
+		else
+			retval = hdpvr_i2c_write(dev, 1, addr, msgs[0].buf,
+						 msgs[0].len);
+	} else if (num == 2) {
+		if (msgs[0].addr != msgs[1].addr) {
+			v4l2_warn(&dev->v4l2_dev, "refusing 2-phase i2c xfer "
+				  "with conflicting target addresses\n");
+			retval = -EINVAL;
+			goto out;
+		}
+
+		if ((msgs[0].flags & I2C_M_RD) || !(msgs[1].flags & I2C_M_RD)) {
+			v4l2_warn(&dev->v4l2_dev, "refusing complex xfer with "
+				  "r0=%d, r1=%d\n", msgs[0].flags & I2C_M_RD,
+				  msgs[1].flags & I2C_M_RD);
+			retval = -EINVAL;
+			goto out;
+		}
+
+		/*
+		 * Write followed by atomic read is the only complex xfer that
+		 * we actually support here.
+		 */
+		retval = hdpvr_i2c_read(dev, 1, addr, msgs[0].buf, msgs[0].len,
+					msgs[1].buf, msgs[1].len);
+	} else {
+		v4l2_warn(&dev->v4l2_dev, "refusing %d-phase i2c xfer\n", num);
+	}
+
+out:
+	mutex_unlock(&dev->i2c_mutex);
+
+	return retval ? retval : num;
+}
+
+static u32 hdpvr_functionality(struct i2c_adapter *adapter)
+{
+	return I2C_FUNC_I2C | I2C_FUNC_SMBUS_EMUL;
+}
+
+static struct i2c_algorithm hdpvr_algo = {
+	.master_xfer   = hdpvr_transfer,
+	.functionality = hdpvr_functionality,
+};
+
+static struct i2c_adapter hdpvr_i2c_adapter_template = {
+	.name   = "Hauppage HD PVR I2C",
+	.owner  = THIS_MODULE,
+	.algo   = &hdpvr_algo,
+};
+
+static int hdpvr_activate_ir(struct hdpvr_device *dev)
+{
+	char buffer[2];
+
+	mutex_lock(&dev->i2c_mutex);
+
+	hdpvr_i2c_read(dev, 0, 0x54, NULL, 0, buffer, 1);
+
+	buffer[0] = 0;
+	buffer[1] = 0x8;
+	hdpvr_i2c_write(dev, 1, 0x54, buffer, 2);
+
+	buffer[1] = 0x18;
+	hdpvr_i2c_write(dev, 1, 0x54, buffer, 2);
+
+	mutex_unlock(&dev->i2c_mutex);
+
+	return 0;
+}
+
+int hdpvr_register_i2c_adapter(struct hdpvr_device *dev)
+{
+	int retval = -ENOMEM;
+
+	hdpvr_activate_ir(dev);
+
+	dev->i2c_adapter = hdpvr_i2c_adapter_template;
+	dev->i2c_adapter.dev.parent = &dev->udev->dev;
+
+	i2c_set_adapdata(&dev->i2c_adapter, dev);
+
+	retval = i2c_add_adapter(&dev->i2c_adapter);
+
+	return retval;
+}
+
+#endif

drivers/media/usb/hdpvr/hdpvr.h

@@ -0,0 +1,330 @@
+/*
+ * Hauppauge HD PVR USB driver
+ *
+ * Copyright (C) 2008      Janne Grunau (j@jannau.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, version 2.
+ *
+ */
+
+#include <linux/usb.h>
+#include <linux/i2c.h>
+#include <linux/mutex.h>
+#include <linux/workqueue.h>
+#include <linux/videodev2.h>
+
+#include <media/v4l2-device.h>
+#include <media/v4l2-ctrls.h>
+#include <media/ir-kbd-i2c.h>
+
+#define HDPVR_MAX 8
+#define HDPVR_I2C_MAX_SIZE 128
+
+/* Define these values to match your devices */
+#define HD_PVR_VENDOR_ID	0x2040
+#define HD_PVR_PRODUCT_ID	0x4900
+#define HD_PVR_PRODUCT_ID1	0x4901
+#define HD_PVR_PRODUCT_ID2	0x4902
+#define HD_PVR_PRODUCT_ID4	0x4903
+#define HD_PVR_PRODUCT_ID3	0x4982
+
+#define UNSET    (-1U)
+
+#define NUM_BUFFERS 64
+
+#define HDPVR_FIRMWARE_VERSION		0x08
+#define HDPVR_FIRMWARE_VERSION_AC3	0x0d
+#define HDPVR_FIRMWARE_VERSION_0X12	0x12
+#define HDPVR_FIRMWARE_VERSION_0X15	0x15
+#define HDPVR_FIRMWARE_VERSION_0X1E	0x1e
+
+/* #define HDPVR_DEBUG */
+
+extern int hdpvr_debug;
+
+#define MSG_INFO	1
+#define MSG_BUFFER	2
+
+struct hdpvr_options {
+	u8	video_std;
+	u8	video_input;
+	u8	audio_input;
+	u8	bitrate;	/* in 100kbps */
+	u8	peak_bitrate;	/* in 100kbps */
+	u8	bitrate_mode;
+	u8	gop_mode;
+	enum v4l2_mpeg_audio_encoding	audio_codec;
+	u8	brightness;
+	u8	contrast;
+	u8	hue;
+	u8	saturation;
+	u8	sharpness;
+};
+
+/* Structure to hold all of our device specific stuff */
+struct hdpvr_device {
+	/* the v4l device for this device */
+	struct video_device	*video_dev;
+	/* the control handler for this device */
+	struct v4l2_ctrl_handler hdl;
+	/* the usb device for this device */
+	struct usb_device	*udev;
+	/* v4l2-device unused */
+	struct v4l2_device	v4l2_dev;
+	struct { /* video mode/bitrate control cluster */
+		struct v4l2_ctrl *video_mode;
+		struct v4l2_ctrl *video_bitrate;
+		struct v4l2_ctrl *video_bitrate_peak;
+	};
+	/* v4l2 format */
+	uint width, height;
+
+	/* the max packet size of the bulk endpoint */
+	size_t			bulk_in_size;
+	/* the address of the bulk in endpoint */
+	__u8			bulk_in_endpointAddr;
+
+	/* holds the current device status */
+	__u8			status;
+
+	/* holds the current set options */
+	struct hdpvr_options	options;
+	v4l2_std_id		cur_std;
+	struct v4l2_dv_timings	cur_dv_timings;
+
+	uint			flags;
+
+	/* synchronize I/O */
+	struct mutex		io_mutex;
+	/* available buffers */
+	struct list_head	free_buff_list;
+	/* in progress buffers */
+	struct list_head	rec_buff_list;
+	/* waitqueue for buffers */
+	wait_queue_head_t	wait_buffer;
+	/* waitqueue for data */
+	wait_queue_head_t	wait_data;
+	/**/
+	struct workqueue_struct	*workqueue;
+	/**/
+	struct work_struct	worker;
+	/* current stream owner */
+	struct v4l2_fh		*owner;
+
+	/* I2C adapter */
+	struct i2c_adapter	i2c_adapter;
+	/* I2C lock */
+	struct mutex		i2c_mutex;
+	/* I2C message buffer space */
+	char			i2c_buf[HDPVR_I2C_MAX_SIZE];
+
+	/* For passing data to ir-kbd-i2c */
+	struct IR_i2c_init_data	ir_i2c_init_data;
+
+	/* usb control transfer buffer and lock */
+	struct mutex		usbc_mutex;
+	u8			*usbc_buf;
+	u8			fw_ver;
+};
+
+static inline struct hdpvr_device *to_hdpvr_dev(struct v4l2_device *v4l2_dev)
+{
+	return container_of(v4l2_dev, struct hdpvr_device, v4l2_dev);
+}
+
+
+/* buffer one bulk urb of data */
+struct hdpvr_buffer {
+	struct list_head	buff_list;
+
+	struct urb		*urb;
+
+	struct hdpvr_device	*dev;
+
+	uint			pos;
+
+	__u8			status;
+};
+
+/* */
+
+struct hdpvr_video_info {
+	u16	width;
+	u16	height;
+	u8	fps;
+};
+
+enum {
+	STATUS_UNINITIALIZED	= 0,
+	STATUS_IDLE,
+	STATUS_STARTING,
+	STATUS_SHUTTING_DOWN,
+	STATUS_STREAMING,
+	STATUS_ERROR,
+	STATUS_DISCONNECTED,
+};
+
+enum {
+	HDPVR_FLAG_AC3_CAP = 1,
+};
+
+enum {
+	BUFSTAT_UNINITIALIZED = 0,
+	BUFSTAT_AVAILABLE,
+	BUFSTAT_INPROGRESS,
+	BUFSTAT_READY,
+};
+
+#define CTRL_START_STREAMING_VALUE	0x0700
+#define CTRL_STOP_STREAMING_VALUE	0x0800
+#define CTRL_BITRATE_VALUE		0x1000
+#define CTRL_BITRATE_MODE_VALUE		0x1200
+#define CTRL_GOP_MODE_VALUE		0x1300
+#define CTRL_VIDEO_INPUT_VALUE		0x1500
+#define CTRL_VIDEO_STD_TYPE		0x1700
+#define CTRL_AUDIO_INPUT_VALUE		0x2500
+#define CTRL_BRIGHTNESS			0x2900
+#define CTRL_CONTRAST			0x2a00
+#define CTRL_HUE			0x2b00
+#define CTRL_SATURATION			0x2c00
+#define CTRL_SHARPNESS			0x2d00
+#define CTRL_LOW_PASS_FILTER_VALUE	0x3100
+
+#define CTRL_DEFAULT_INDEX		0x0003
+
+
+	/* :0 s 38 01 1000 0003 0004 4 = 0a00ca00
+	 * BITRATE SETTING
+	 *   1st and 2nd byte (little endian): average bitrate in 100 000 bit/s
+	 *                                     min: 1 mbit/s, max: 13.5 mbit/s
+	 *   3rd and 4th byte (little endian): peak bitrate in 100 000 bit/s
+	 *                                     min: average + 100kbit/s,
+	 *                                      max: 20.2 mbit/s
+	 */
+
+	/* :0 s 38 01 1200 0003 0001 1 = 02
+	 * BIT RATE MODE
+	 *  constant = 1, variable (peak) = 2, variable (average) = 3
+	 */
+
+	/* :0 s 38 01 1300 0003 0001 1 = 03
+	 * GOP MODE (2 bit)
+	 *    low bit 0/1: advanced/simple GOP
+	 *   high bit 0/1: IDR(4/32/128) / no IDR (4/32/0)
+	 */
+
+	/* :0 s 38 01 1700 0003 0001 1 = 00
+	 * VIDEO STANDARD or FREQUNCY 0 = 60hz, 1 = 50hz
+	 */
+
+	/* :0 s 38 01 3100 0003 0004 4 = 03030000
+	 * FILTER CONTROL
+	 *   1st byte luma low pass filter strength,
+	 *   2nd byte chroma low pass filter strength,
+	 *   3rd byte MF enable chroma, min=0, max=1
+	 *   4th byte n
+	 */
+
+
+	/* :0 s 38 b9 0001 0000 0000 0 */
+
+
+
+/* :0 s 38 d3 0000 0000 0001 1 = 00 */
+/* 		ret = usb_control_msg(dev->udev, */
+/* 				      usb_sndctrlpipe(dev->udev, 0), */
+/* 				      0xd3, 0x38, */
+/* 				      0, 0, */
+/* 				      "\0", 1, */
+/* 				      1000); */
+
+/* 		info("control request returned %d", ret); */
+/* 		msleep(5000); */
+
+
+	/* :0 s b8 81 1400 0003 0005 5 <
+	 * :0 0 5 = d0024002 19
+	 * QUERY FRAME SIZE AND RATE
+	 *   1st and 2nd byte (little endian): horizontal resolution
+	 *   3rd and 4th byte (little endian): vertical resolution
+	 *   5th byte: frame rate
+	 */
+
+	/* :0 s b8 81 1800 0003 0003 3 <
+	 * :0 0 3 = 030104
+	 * QUERY SIGNAL AND DETECTED LINES, maybe INPUT
+	 */
+
+enum hdpvr_video_std {
+	HDPVR_60HZ = 0,
+	HDPVR_50HZ,
+};
+
+enum hdpvr_video_input {
+	HDPVR_COMPONENT = 0,
+	HDPVR_SVIDEO,
+	HDPVR_COMPOSITE,
+	HDPVR_VIDEO_INPUTS
+};
+
+enum hdpvr_audio_inputs {
+	HDPVR_RCA_BACK = 0,
+	HDPVR_RCA_FRONT,
+	HDPVR_SPDIF,
+	HDPVR_AUDIO_INPUTS
+};
+
+enum hdpvr_bitrate_mode {
+	HDPVR_CONSTANT = 1,
+	HDPVR_VARIABLE_PEAK,
+	HDPVR_VARIABLE_AVERAGE,
+};
+
+enum hdpvr_gop_mode {
+	HDPVR_ADVANCED_IDR_GOP = 0,
+	HDPVR_SIMPLE_IDR_GOP,
+	HDPVR_ADVANCED_NOIDR_GOP,
+	HDPVR_SIMPLE_NOIDR_GOP,
+};
+
+void hdpvr_delete(struct hdpvr_device *dev);
+
+/*========================================================================*/
+/* hardware control functions */
+int hdpvr_set_options(struct hdpvr_device *dev);
+
+int hdpvr_set_bitrate(struct hdpvr_device *dev);
+
+int hdpvr_set_audio(struct hdpvr_device *dev, u8 input,
+		    enum v4l2_mpeg_audio_encoding codec);
+
+int hdpvr_config_call(struct hdpvr_device *dev, uint value,
+		      unsigned char valbuf);
+
+struct hdpvr_video_info *get_video_info(struct hdpvr_device *dev);
+
+/* :0 s b8 81 1800 0003 0003 3 < */
+/* :0 0 3 = 0301ff */
+int get_input_lines_info(struct hdpvr_device *dev);
+
+
+/*========================================================================*/
+/* v4l2 registration */
+int hdpvr_register_videodev(struct hdpvr_device *dev, struct device *parent,
+			    int devnumber);
+
+int hdpvr_cancel_queue(struct hdpvr_device *dev);
+
+/*========================================================================*/
+/* i2c adapter registration */
+int hdpvr_register_i2c_adapter(struct hdpvr_device *dev);
+
+struct i2c_client *hdpvr_register_ir_rx_i2c(struct hdpvr_device *dev);
+struct i2c_client *hdpvr_register_ir_tx_i2c(struct hdpvr_device *dev);
+
+/*========================================================================*/
+/* buffer management */
+int hdpvr_free_buffers(struct hdpvr_device *dev);
+int hdpvr_alloc_buffers(struct hdpvr_device *dev, uint count);