forked from Minki/linux
8423c0cf3a
Correctly sets the max/min/default values for the hdpvr picture controls. The reason the current values didn't cause a problem until now is because any firmware <= 0.15 didn't support them. The latest firmware releases properly support picture controls and the values in the patch are derived from the windows driver using SniffUSB2.0. Thanks to Devin Heitmueller for helping me. Signed-off-by: Taylor Ralph <tralph@mythtv.org> Thanks-to: Devin Heitmueller <dheitmueller@kernellabs.com> Acked-by: Jarod Wilson <jarod@redhat.com> Reviewed-by: Jarod Wilson <jarod@redhat.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
473 lines
12 KiB
C
473 lines
12 KiB
C
/*
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* Hauppauge HD PVR USB driver
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*
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* Copyright (C) 2001-2004 Greg Kroah-Hartman (greg@kroah.com)
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* Copyright (C) 2008 Janne Grunau (j@jannau.net)
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* Copyright (C) 2008 John Poet
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License as
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* published by the Free Software Foundation, version 2.
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*
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*/
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#include <linux/kernel.h>
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#include <linux/errno.h>
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#include <linux/init.h>
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#include <linux/slab.h>
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#include <linux/module.h>
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#include <linux/uaccess.h>
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#include <linux/atomic.h>
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#include <linux/usb.h>
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#include <linux/mutex.h>
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#include <linux/i2c.h>
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#include <linux/videodev2.h>
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#include <media/v4l2-dev.h>
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#include <media/v4l2-common.h>
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#include "hdpvr.h"
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static int video_nr[HDPVR_MAX] = {[0 ... (HDPVR_MAX - 1)] = UNSET};
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module_param_array(video_nr, int, NULL, 0);
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MODULE_PARM_DESC(video_nr, "video device number (-1=Auto)");
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/* holds the number of currently registered devices */
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static atomic_t dev_nr = ATOMIC_INIT(-1);
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int hdpvr_debug;
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module_param(hdpvr_debug, int, S_IRUGO|S_IWUSR);
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MODULE_PARM_DESC(hdpvr_debug, "enable debugging output");
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static uint default_video_input = HDPVR_VIDEO_INPUTS;
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module_param(default_video_input, uint, S_IRUGO|S_IWUSR);
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MODULE_PARM_DESC(default_video_input, "default video input: 0=Component / "
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"1=S-Video / 2=Composite");
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static uint default_audio_input = HDPVR_AUDIO_INPUTS;
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module_param(default_audio_input, uint, S_IRUGO|S_IWUSR);
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MODULE_PARM_DESC(default_audio_input, "default audio input: 0=RCA back / "
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"1=RCA front / 2=S/PDIF");
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static bool boost_audio;
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module_param(boost_audio, bool, S_IRUGO|S_IWUSR);
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MODULE_PARM_DESC(boost_audio, "boost the audio signal");
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/* table of devices that work with this driver */
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static struct usb_device_id hdpvr_table[] = {
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{ USB_DEVICE(HD_PVR_VENDOR_ID, HD_PVR_PRODUCT_ID) },
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{ USB_DEVICE(HD_PVR_VENDOR_ID, HD_PVR_PRODUCT_ID1) },
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{ USB_DEVICE(HD_PVR_VENDOR_ID, HD_PVR_PRODUCT_ID2) },
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{ USB_DEVICE(HD_PVR_VENDOR_ID, HD_PVR_PRODUCT_ID3) },
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{ USB_DEVICE(HD_PVR_VENDOR_ID, HD_PVR_PRODUCT_ID4) },
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{ } /* Terminating entry */
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};
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MODULE_DEVICE_TABLE(usb, hdpvr_table);
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void hdpvr_delete(struct hdpvr_device *dev)
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{
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hdpvr_free_buffers(dev);
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if (dev->video_dev)
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video_device_release(dev->video_dev);
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usb_put_dev(dev->udev);
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}
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static void challenge(u8 *bytes)
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{
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u64 *i64P, tmp64;
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uint i, idx;
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for (idx = 0; idx < 32; ++idx) {
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if (idx & 0x3)
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bytes[(idx >> 3) + 3] = bytes[(idx >> 2) & 0x3];
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switch (idx & 0x3) {
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case 0x3:
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bytes[2] += bytes[3] * 4 + bytes[4] + bytes[5];
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bytes[4] += bytes[(idx & 0x1) * 2] * 9 + 9;
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break;
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case 0x1:
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bytes[0] *= 8;
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bytes[0] += 7*idx + 4;
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bytes[6] += bytes[3] * 3;
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break;
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case 0x0:
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bytes[3 - (idx >> 3)] = bytes[idx >> 2];
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bytes[5] += bytes[6] * 3;
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for (i = 0; i < 3; i++)
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bytes[3] *= bytes[3] + 1;
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break;
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case 0x2:
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for (i = 0; i < 3; i++)
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bytes[1] *= bytes[6] + 1;
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for (i = 0; i < 3; i++) {
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i64P = (u64 *)bytes;
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tmp64 = le64_to_cpup(i64P);
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tmp64 <<= bytes[7] & 0x0f;
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*i64P += cpu_to_le64(tmp64);
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}
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break;
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}
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}
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}
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/* try to init the device like the windows driver */
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static int device_authorization(struct hdpvr_device *dev)
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{
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int ret, retval = -ENOMEM;
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char request_type = 0x38, rcv_request = 0x81;
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char *response;
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#ifdef HDPVR_DEBUG
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size_t buf_size = 46;
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char *print_buf = kzalloc(5*buf_size+1, GFP_KERNEL);
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if (!print_buf) {
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v4l2_err(&dev->v4l2_dev, "Out of memory\n");
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return retval;
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}
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#endif
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mutex_lock(&dev->usbc_mutex);
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ret = usb_control_msg(dev->udev,
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usb_rcvctrlpipe(dev->udev, 0),
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rcv_request, 0x80 | request_type,
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0x0400, 0x0003,
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dev->usbc_buf, 46,
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10000);
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if (ret != 46) {
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v4l2_err(&dev->v4l2_dev,
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"unexpected answer of status request, len %d\n", ret);
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goto unlock;
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}
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#ifdef HDPVR_DEBUG
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else {
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hex_dump_to_buffer(dev->usbc_buf, 46, 16, 1, print_buf,
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5*buf_size+1, 0);
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v4l2_dbg(MSG_INFO, hdpvr_debug, &dev->v4l2_dev,
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"Status request returned, len %d: %s\n",
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ret, print_buf);
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}
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#endif
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dev->fw_ver = dev->usbc_buf[1];
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v4l2_info(&dev->v4l2_dev, "firmware version 0x%x dated %s\n",
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dev->fw_ver, &dev->usbc_buf[2]);
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if (dev->fw_ver > 0x15) {
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dev->options.brightness = 0x80;
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dev->options.contrast = 0x40;
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dev->options.hue = 0xf;
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dev->options.saturation = 0x40;
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dev->options.sharpness = 0x80;
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}
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switch (dev->fw_ver) {
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case HDPVR_FIRMWARE_VERSION:
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dev->flags &= ~HDPVR_FLAG_AC3_CAP;
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break;
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case HDPVR_FIRMWARE_VERSION_AC3:
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case HDPVR_FIRMWARE_VERSION_0X12:
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case HDPVR_FIRMWARE_VERSION_0X15:
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dev->flags |= HDPVR_FLAG_AC3_CAP;
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break;
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default:
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v4l2_info(&dev->v4l2_dev, "untested firmware, the driver might"
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" not work.\n");
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if (dev->fw_ver >= HDPVR_FIRMWARE_VERSION_AC3)
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dev->flags |= HDPVR_FLAG_AC3_CAP;
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else
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dev->flags &= ~HDPVR_FLAG_AC3_CAP;
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}
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response = dev->usbc_buf+38;
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#ifdef HDPVR_DEBUG
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hex_dump_to_buffer(response, 8, 16, 1, print_buf, 5*buf_size+1, 0);
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v4l2_dbg(MSG_INFO, hdpvr_debug, &dev->v4l2_dev, "challenge: %s\n",
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print_buf);
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#endif
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challenge(response);
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#ifdef HDPVR_DEBUG
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hex_dump_to_buffer(response, 8, 16, 1, print_buf, 5*buf_size+1, 0);
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v4l2_dbg(MSG_INFO, hdpvr_debug, &dev->v4l2_dev, " response: %s\n",
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print_buf);
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#endif
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msleep(100);
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ret = usb_control_msg(dev->udev,
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usb_sndctrlpipe(dev->udev, 0),
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0xd1, 0x00 | request_type,
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0x0000, 0x0000,
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response, 8,
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10000);
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v4l2_dbg(MSG_INFO, hdpvr_debug, &dev->v4l2_dev,
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"magic request returned %d\n", ret);
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retval = ret != 8;
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unlock:
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mutex_unlock(&dev->usbc_mutex);
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return retval;
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}
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static int hdpvr_device_init(struct hdpvr_device *dev)
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{
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int ret;
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u8 *buf;
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struct hdpvr_video_info *vidinf;
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if (device_authorization(dev))
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return -EACCES;
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/* default options for init */
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hdpvr_set_options(dev);
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/* set filter options */
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mutex_lock(&dev->usbc_mutex);
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buf = dev->usbc_buf;
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buf[0] = 0x03; buf[1] = 0x03; buf[2] = 0x00; buf[3] = 0x00;
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ret = usb_control_msg(dev->udev,
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usb_sndctrlpipe(dev->udev, 0),
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0x01, 0x38,
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CTRL_LOW_PASS_FILTER_VALUE, CTRL_DEFAULT_INDEX,
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buf, 4,
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1000);
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v4l2_dbg(MSG_INFO, hdpvr_debug, &dev->v4l2_dev,
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"control request returned %d\n", ret);
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mutex_unlock(&dev->usbc_mutex);
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vidinf = get_video_info(dev);
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if (!vidinf)
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v4l2_dbg(MSG_INFO, hdpvr_debug, &dev->v4l2_dev,
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"no valid video signal or device init failed\n");
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else
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kfree(vidinf);
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/* enable fan and bling leds */
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mutex_lock(&dev->usbc_mutex);
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buf[0] = 0x1;
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ret = usb_control_msg(dev->udev,
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usb_sndctrlpipe(dev->udev, 0),
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0xd4, 0x38, 0, 0, buf, 1,
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1000);
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v4l2_dbg(MSG_INFO, hdpvr_debug, &dev->v4l2_dev,
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"control request returned %d\n", ret);
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/* boost analog audio */
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buf[0] = boost_audio;
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ret = usb_control_msg(dev->udev,
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usb_sndctrlpipe(dev->udev, 0),
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0xd5, 0x38, 0, 0, buf, 1,
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1000);
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v4l2_dbg(MSG_INFO, hdpvr_debug, &dev->v4l2_dev,
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"control request returned %d\n", ret);
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mutex_unlock(&dev->usbc_mutex);
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dev->status = STATUS_IDLE;
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return 0;
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}
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static const struct hdpvr_options hdpvr_default_options = {
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.video_std = HDPVR_60HZ,
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.video_input = HDPVR_COMPONENT,
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.audio_input = HDPVR_RCA_BACK,
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.bitrate = 65, /* 6 mbps */
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.peak_bitrate = 90, /* 9 mbps */
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.bitrate_mode = HDPVR_CONSTANT,
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.gop_mode = HDPVR_SIMPLE_IDR_GOP,
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.audio_codec = V4L2_MPEG_AUDIO_ENCODING_AAC,
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/* original picture controls for firmware version <= 0x15 */
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/* updated in device_authorization() for newer firmware */
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.brightness = 0x86,
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.contrast = 0x80,
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.hue = 0x80,
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.saturation = 0x80,
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.sharpness = 0x80,
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};
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static int hdpvr_probe(struct usb_interface *interface,
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const struct usb_device_id *id)
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{
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struct hdpvr_device *dev;
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struct usb_host_interface *iface_desc;
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struct usb_endpoint_descriptor *endpoint;
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struct i2c_client *client;
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size_t buffer_size;
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int i;
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int retval = -ENOMEM;
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/* allocate memory for our device state and initialize it */
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dev = kzalloc(sizeof(*dev), GFP_KERNEL);
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if (!dev) {
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err("Out of memory");
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goto error;
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}
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dev->workqueue = 0;
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/* register v4l2_device early so it can be used for printks */
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if (v4l2_device_register(&interface->dev, &dev->v4l2_dev)) {
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err("v4l2_device_register failed");
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goto error;
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}
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mutex_init(&dev->io_mutex);
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mutex_init(&dev->i2c_mutex);
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mutex_init(&dev->usbc_mutex);
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dev->usbc_buf = kmalloc(64, GFP_KERNEL);
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if (!dev->usbc_buf) {
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v4l2_err(&dev->v4l2_dev, "Out of memory\n");
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goto error;
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}
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init_waitqueue_head(&dev->wait_buffer);
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init_waitqueue_head(&dev->wait_data);
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dev->workqueue = create_singlethread_workqueue("hdpvr_buffer");
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if (!dev->workqueue)
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goto error;
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/* init video transfer queues */
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INIT_LIST_HEAD(&dev->free_buff_list);
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INIT_LIST_HEAD(&dev->rec_buff_list);
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dev->options = hdpvr_default_options;
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if (default_video_input < HDPVR_VIDEO_INPUTS)
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dev->options.video_input = default_video_input;
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if (default_audio_input < HDPVR_AUDIO_INPUTS) {
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dev->options.audio_input = default_audio_input;
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if (default_audio_input == HDPVR_SPDIF)
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dev->options.audio_codec =
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V4L2_MPEG_AUDIO_ENCODING_AC3;
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}
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dev->udev = usb_get_dev(interface_to_usbdev(interface));
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/* set up the endpoint information */
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/* use only the first bulk-in and bulk-out endpoints */
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iface_desc = interface->cur_altsetting;
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for (i = 0; i < iface_desc->desc.bNumEndpoints; ++i) {
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endpoint = &iface_desc->endpoint[i].desc;
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if (!dev->bulk_in_endpointAddr &&
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usb_endpoint_is_bulk_in(endpoint)) {
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/* USB interface description is buggy, reported max
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* packet size is 512 bytes, windows driver uses 8192 */
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buffer_size = 8192;
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dev->bulk_in_size = buffer_size;
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dev->bulk_in_endpointAddr = endpoint->bEndpointAddress;
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}
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}
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if (!dev->bulk_in_endpointAddr) {
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v4l2_err(&dev->v4l2_dev, "Could not find bulk-in endpoint\n");
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goto error;
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}
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/* init the device */
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if (hdpvr_device_init(dev)) {
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v4l2_err(&dev->v4l2_dev, "device init failed\n");
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goto error;
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}
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mutex_lock(&dev->io_mutex);
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if (hdpvr_alloc_buffers(dev, NUM_BUFFERS)) {
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mutex_unlock(&dev->io_mutex);
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v4l2_err(&dev->v4l2_dev,
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"allocating transfer buffers failed\n");
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goto error;
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}
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mutex_unlock(&dev->io_mutex);
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if (hdpvr_register_videodev(dev, &interface->dev,
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video_nr[atomic_inc_return(&dev_nr)])) {
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v4l2_err(&dev->v4l2_dev, "registering videodev failed\n");
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goto error;
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}
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#if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE)
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retval = hdpvr_register_i2c_adapter(dev);
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if (retval < 0) {
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v4l2_err(&dev->v4l2_dev, "i2c adapter register failed\n");
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goto error;
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}
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client = hdpvr_register_ir_rx_i2c(dev);
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if (!client) {
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v4l2_err(&dev->v4l2_dev, "i2c IR RX device register failed\n");
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goto reg_fail;
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}
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client = hdpvr_register_ir_tx_i2c(dev);
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if (!client) {
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v4l2_err(&dev->v4l2_dev, "i2c IR TX device register failed\n");
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goto reg_fail;
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}
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#endif
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/* let the user know what node this device is now attached to */
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v4l2_info(&dev->v4l2_dev, "device now attached to %s\n",
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video_device_node_name(dev->video_dev));
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return 0;
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reg_fail:
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#if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE)
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i2c_del_adapter(&dev->i2c_adapter);
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#endif
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error:
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if (dev) {
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/* Destroy single thread */
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if (dev->workqueue)
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destroy_workqueue(dev->workqueue);
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/* this frees allocated memory */
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hdpvr_delete(dev);
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}
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return retval;
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}
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static void hdpvr_disconnect(struct usb_interface *interface)
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{
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struct hdpvr_device *dev = to_hdpvr_dev(usb_get_intfdata(interface));
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v4l2_info(&dev->v4l2_dev, "device %s disconnected\n",
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video_device_node_name(dev->video_dev));
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/* prevent more I/O from starting and stop any ongoing */
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mutex_lock(&dev->io_mutex);
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dev->status = STATUS_DISCONNECTED;
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wake_up_interruptible(&dev->wait_data);
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wake_up_interruptible(&dev->wait_buffer);
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mutex_unlock(&dev->io_mutex);
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v4l2_device_disconnect(&dev->v4l2_dev);
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msleep(100);
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flush_workqueue(dev->workqueue);
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mutex_lock(&dev->io_mutex);
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hdpvr_cancel_queue(dev);
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mutex_unlock(&dev->io_mutex);
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#if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE)
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i2c_del_adapter(&dev->i2c_adapter);
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#endif
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video_unregister_device(dev->video_dev);
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atomic_dec(&dev_nr);
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}
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static struct usb_driver hdpvr_usb_driver = {
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.name = "hdpvr",
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.probe = hdpvr_probe,
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|
.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");
|