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1// SPDX-License-Identifier: GPL-2.0-only2/*3 * Hauppauge HD PVR USB driver - video 4 linux 2 interface4 *5 * Copyright (C) 2008 Janne Grunau (j@jannau.net)6 */7 8#include <linux/kernel.h>9#include <linux/errno.h>10#include <linux/init.h>11#include <linux/slab.h>12#include <linux/module.h>13#include <linux/usb.h>14#include <linux/mutex.h>15 16#include <linux/videodev2.h>17 18#include <media/v4l2-common.h>19 20#include "hdpvr.h"21 22 23int hdpvr_config_call(struct hdpvr_device *dev, uint value, u8 valbuf)24{25 int ret;26 char request_type = 0x38, snd_request = 0x01;27 28 mutex_lock(&dev->usbc_mutex);29 dev->usbc_buf[0] = valbuf;30 ret = usb_control_msg(dev->udev,31 usb_sndctrlpipe(dev->udev, 0),32 snd_request, 0x00 | request_type,33 value, CTRL_DEFAULT_INDEX,34 dev->usbc_buf, 1, 10000);35 36 mutex_unlock(&dev->usbc_mutex);37 v4l2_dbg(MSG_INFO, hdpvr_debug, &dev->v4l2_dev,38 "config call request for value 0x%x returned %d\n", value,39 ret);40 41 return ret < 0 ? ret : 0;42}43 44int get_video_info(struct hdpvr_device *dev, struct hdpvr_video_info *vidinf)45{46 int ret;47 48 vidinf->valid = false;49 mutex_lock(&dev->usbc_mutex);50 ret = usb_control_msg(dev->udev,51 usb_rcvctrlpipe(dev->udev, 0),52 0x81, 0x80 | 0x38,53 0x1400, 0x0003,54 dev->usbc_buf, 5,55 1000);56 57#ifdef HDPVR_DEBUG58 if (hdpvr_debug & MSG_INFO)59 v4l2_dbg(MSG_INFO, hdpvr_debug, &dev->v4l2_dev,60 "get video info returned: %d, %5ph\n", ret,61 dev->usbc_buf);62#endif63 mutex_unlock(&dev->usbc_mutex);64 65 if (ret < 0)66 return ret;67 68 vidinf->width = dev->usbc_buf[1] << 8 | dev->usbc_buf[0];69 vidinf->height = dev->usbc_buf[3] << 8 | dev->usbc_buf[2];70 vidinf->fps = dev->usbc_buf[4];71 vidinf->valid = vidinf->width && vidinf->height && vidinf->fps;72 73 return 0;74}75 76int get_input_lines_info(struct hdpvr_device *dev)77{78 int ret, lines;79 80 mutex_lock(&dev->usbc_mutex);81 ret = usb_control_msg(dev->udev,82 usb_rcvctrlpipe(dev->udev, 0),83 0x81, 0x80 | 0x38,84 0x1800, 0x0003,85 dev->usbc_buf, 3,86 1000);87 88#ifdef HDPVR_DEBUG89 if (hdpvr_debug & MSG_INFO)90 v4l2_dbg(MSG_INFO, hdpvr_debug, &dev->v4l2_dev,91 "get input lines info returned: %d, %3ph\n", ret,92 dev->usbc_buf);93#else94 (void)ret; /* suppress compiler warning */95#endif96 lines = dev->usbc_buf[1] << 8 | dev->usbc_buf[0];97 mutex_unlock(&dev->usbc_mutex);98 return lines;99}100 101 102int hdpvr_set_bitrate(struct hdpvr_device *dev)103{104 int ret;105 106 mutex_lock(&dev->usbc_mutex);107 memset(dev->usbc_buf, 0, 4);108 dev->usbc_buf[0] = dev->options.bitrate;109 dev->usbc_buf[2] = dev->options.peak_bitrate;110 111 ret = usb_control_msg(dev->udev,112 usb_sndctrlpipe(dev->udev, 0),113 0x01, 0x38, CTRL_BITRATE_VALUE,114 CTRL_DEFAULT_INDEX, dev->usbc_buf, 4, 1000);115 mutex_unlock(&dev->usbc_mutex);116 117 return ret;118}119 120int hdpvr_set_audio(struct hdpvr_device *dev, u8 input,121 enum v4l2_mpeg_audio_encoding codec)122{123 int ret = 0;124 125 if (dev->flags & HDPVR_FLAG_AC3_CAP) {126 mutex_lock(&dev->usbc_mutex);127 memset(dev->usbc_buf, 0, 2);128 dev->usbc_buf[0] = input;129 if (codec == V4L2_MPEG_AUDIO_ENCODING_AAC)130 dev->usbc_buf[1] = 0;131 else if (codec == V4L2_MPEG_AUDIO_ENCODING_AC3)132 dev->usbc_buf[1] = 1;133 else {134 mutex_unlock(&dev->usbc_mutex);135 v4l2_err(&dev->v4l2_dev, "invalid audio codec %d\n",136 codec);137 ret = -EINVAL;138 goto error;139 }140 141 ret = usb_control_msg(dev->udev,142 usb_sndctrlpipe(dev->udev, 0),143 0x01, 0x38, CTRL_AUDIO_INPUT_VALUE,144 CTRL_DEFAULT_INDEX, dev->usbc_buf, 2,145 1000);146 mutex_unlock(&dev->usbc_mutex);147 if (ret == 2)148 ret = 0;149 } else150 ret = hdpvr_config_call(dev, CTRL_AUDIO_INPUT_VALUE, input);151error:152 return ret;153}154 155int hdpvr_set_options(struct hdpvr_device *dev)156{157 hdpvr_config_call(dev, CTRL_VIDEO_STD_TYPE, dev->options.video_std);158 159 hdpvr_config_call(dev, CTRL_VIDEO_INPUT_VALUE,160 dev->options.video_input+1);161 162 hdpvr_set_audio(dev, dev->options.audio_input+1,163 dev->options.audio_codec);164 165 hdpvr_set_bitrate(dev);166 hdpvr_config_call(dev, CTRL_BITRATE_MODE_VALUE,167 dev->options.bitrate_mode);168 hdpvr_config_call(dev, CTRL_GOP_MODE_VALUE, dev->options.gop_mode);169 170 hdpvr_config_call(dev, CTRL_BRIGHTNESS, dev->options.brightness);171 hdpvr_config_call(dev, CTRL_CONTRAST, dev->options.contrast);172 hdpvr_config_call(dev, CTRL_HUE, dev->options.hue);173 hdpvr_config_call(dev, CTRL_SATURATION, dev->options.saturation);174 hdpvr_config_call(dev, CTRL_SHARPNESS, dev->options.sharpness);175 176 return 0;177}178