443 lines
12 KiB
C
443 lines
12 KiB
C
/*
|
|
* 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 const 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);
|
|
usb_put_dev(dev->udev);
|
|
}
|
|
|
|
static void challenge(u8 *bytes)
|
|
{
|
|
__le64 *i64P;
|
|
u64 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 = (__le64 *)bytes;
|
|
tmp64 = le64_to_cpup(i64P);
|
|
tmp64 = tmp64 + (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;
|
|
|
|
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 {
|
|
v4l2_dbg(MSG_INFO, hdpvr_debug, &dev->v4l2_dev,
|
|
"Status request returned, len %d: %46ph\n",
|
|
ret, dev->usbc_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
|
|
v4l2_dbg(MSG_INFO, hdpvr_debug, &dev->v4l2_dev, "challenge: %8ph\n",
|
|
response);
|
|
#endif
|
|
challenge(response);
|
|
#ifdef HDPVR_DEBUG
|
|
v4l2_dbg(MSG_INFO, hdpvr_debug, &dev->v4l2_dev, " response: %8ph\n",
|
|
response);
|
|
#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;
|
|
|
|
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);
|
|
|
|
/* 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;
|
|
#if IS_ENABLED(CONFIG_I2C)
|
|
struct i2c_client *client;
|
|
#endif
|
|
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;
|
|
}
|
|
|
|
/* 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_free_dev;
|
|
}
|
|
|
|
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_v4l2_unregister;
|
|
}
|
|
|
|
init_waitqueue_head(&dev->wait_buffer);
|
|
init_waitqueue_head(&dev->wait_data);
|
|
|
|
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_put_usb;
|
|
}
|
|
|
|
/* init the device */
|
|
if (hdpvr_device_init(dev)) {
|
|
v4l2_err(&dev->v4l2_dev, "device init failed\n");
|
|
goto error_put_usb;
|
|
}
|
|
|
|
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_put_usb;
|
|
}
|
|
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_free_buffers;
|
|
}
|
|
|
|
client = hdpvr_register_ir_i2c(dev);
|
|
if (!client) {
|
|
v4l2_err(&dev->v4l2_dev, "i2c IR 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);
|
|
error_free_buffers:
|
|
#endif
|
|
hdpvr_free_buffers(dev);
|
|
error_put_usb:
|
|
usb_put_dev(dev->udev);
|
|
kfree(dev->usbc_buf);
|
|
error_v4l2_unregister:
|
|
v4l2_device_unregister(&dev->v4l2_dev);
|
|
error_free_dev:
|
|
kfree(dev);
|
|
error:
|
|
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_work(&dev->worker);
|
|
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");
|