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12#include <linux/kernel.h>
13#include <linux/errno.h>
14#include <linux/init.h>
15#include <linux/slab.h>
16#include <linux/module.h>
17#include <linux/usb.h>
18#include <linux/mutex.h>
19
20#include <linux/videodev2.h>
21
22#include <media/v4l2-common.h>
23
24#include "hdpvr.h"
25
26
27int hdpvr_config_call(struct hdpvr_device *dev, uint value, u8 valbuf)
28{
29 int ret;
30 char request_type = 0x38, snd_request = 0x01;
31
32 msleep(10);
33
34 mutex_lock(&dev->usbc_mutex);
35 dev->usbc_buf[0] = valbuf;
36 ret = usb_control_msg(dev->udev,
37 usb_sndctrlpipe(dev->udev, 0),
38 snd_request, 0x00 | request_type,
39 value, CTRL_DEFAULT_INDEX,
40 dev->usbc_buf, 1, 10000);
41
42 mutex_unlock(&dev->usbc_mutex);
43 v4l2_dbg(MSG_INFO, hdpvr_debug, &dev->v4l2_dev,
44 "config call request for value 0x%x returned %d\n", value,
45 ret);
46
47 return ret < 0 ? ret : 0;
48}
49
50struct hdpvr_video_info *get_video_info(struct hdpvr_device *dev)
51{
52 struct hdpvr_video_info *vidinf = NULL;
53#ifdef HDPVR_DEBUG
54 char print_buf[15];
55#endif
56 int ret;
57
58 vidinf = kzalloc(sizeof(struct hdpvr_video_info), GFP_KERNEL);
59 if (!vidinf) {
60 v4l2_err(&dev->v4l2_dev, "out of memory\n");
61 goto err;
62 }
63
64 mutex_lock(&dev->usbc_mutex);
65 ret = usb_control_msg(dev->udev,
66 usb_rcvctrlpipe(dev->udev, 0),
67 0x81, 0x80 | 0x38,
68 0x1400, 0x0003,
69 dev->usbc_buf, 5,
70 1000);
71 if (ret == 5) {
72 vidinf->width = dev->usbc_buf[1] << 8 | dev->usbc_buf[0];
73 vidinf->height = dev->usbc_buf[3] << 8 | dev->usbc_buf[2];
74 vidinf->fps = dev->usbc_buf[4];
75 }
76
77#ifdef HDPVR_DEBUG
78 if (hdpvr_debug & MSG_INFO) {
79 hex_dump_to_buffer(dev->usbc_buf, 5, 16, 1, print_buf,
80 sizeof(print_buf), 0);
81 v4l2_dbg(MSG_INFO, hdpvr_debug, &dev->v4l2_dev,
82 "get video info returned: %d, %s\n", ret, print_buf);
83 }
84#endif
85 mutex_unlock(&dev->usbc_mutex);
86
87 if (!vidinf->width || !vidinf->height || !vidinf->fps) {
88 kfree(vidinf);
89 vidinf = NULL;
90 }
91err:
92 return vidinf;
93}
94
95int get_input_lines_info(struct hdpvr_device *dev)
96{
97#ifdef HDPVR_DEBUG
98 char print_buf[9];
99#endif
100 int ret, lines;
101
102 mutex_lock(&dev->usbc_mutex);
103 ret = usb_control_msg(dev->udev,
104 usb_rcvctrlpipe(dev->udev, 0),
105 0x81, 0x80 | 0x38,
106 0x1800, 0x0003,
107 dev->usbc_buf, 3,
108 1000);
109
110#ifdef HDPVR_DEBUG
111 if (hdpvr_debug & MSG_INFO) {
112 hex_dump_to_buffer(dev->usbc_buf, 3, 16, 1, print_buf,
113 sizeof(print_buf), 0);
114 v4l2_dbg(MSG_INFO, hdpvr_debug, &dev->v4l2_dev,
115 "get input lines info returned: %d, %s\n", ret,
116 print_buf);
117 }
118#endif
119 lines = dev->usbc_buf[1] << 8 | dev->usbc_buf[0];
120 mutex_unlock(&dev->usbc_mutex);
121 return lines;
122}
123
124
125int hdpvr_set_bitrate(struct hdpvr_device *dev)
126{
127 int ret;
128
129 mutex_lock(&dev->usbc_mutex);
130 memset(dev->usbc_buf, 0, 4);
131 dev->usbc_buf[0] = dev->options.bitrate;
132 dev->usbc_buf[2] = dev->options.peak_bitrate;
133
134 ret = usb_control_msg(dev->udev,
135 usb_sndctrlpipe(dev->udev, 0),
136 0x01, 0x38, CTRL_BITRATE_VALUE,
137 CTRL_DEFAULT_INDEX, dev->usbc_buf, 4, 1000);
138 mutex_unlock(&dev->usbc_mutex);
139
140 return ret;
141}
142
143int hdpvr_set_audio(struct hdpvr_device *dev, u8 input,
144 enum v4l2_mpeg_audio_encoding codec)
145{
146 int ret = 0;
147
148 if (dev->flags & HDPVR_FLAG_AC3_CAP) {
149 mutex_lock(&dev->usbc_mutex);
150 memset(dev->usbc_buf, 0, 2);
151 dev->usbc_buf[0] = input;
152 if (codec == V4L2_MPEG_AUDIO_ENCODING_AAC)
153 dev->usbc_buf[1] = 0;
154 else if (codec == V4L2_MPEG_AUDIO_ENCODING_AC3)
155 dev->usbc_buf[1] = 1;
156 else {
157 mutex_unlock(&dev->usbc_mutex);
158 v4l2_err(&dev->v4l2_dev, "invalid audio codec %d\n",
159 codec);
160 ret = -EINVAL;
161 goto error;
162 }
163
164 ret = usb_control_msg(dev->udev,
165 usb_sndctrlpipe(dev->udev, 0),
166 0x01, 0x38, CTRL_AUDIO_INPUT_VALUE,
167 CTRL_DEFAULT_INDEX, dev->usbc_buf, 2,
168 1000);
169 mutex_unlock(&dev->usbc_mutex);
170 if (ret == 2)
171 ret = 0;
172 } else
173 ret = hdpvr_config_call(dev, CTRL_AUDIO_INPUT_VALUE,
174 dev->options.audio_input+1);
175error:
176 return ret;
177}
178
179int hdpvr_set_options(struct hdpvr_device *dev)
180{
181 hdpvr_config_call(dev, CTRL_VIDEO_STD_TYPE, dev->options.video_std);
182
183 hdpvr_config_call(dev, CTRL_VIDEO_INPUT_VALUE,
184 dev->options.video_input+1);
185
186 hdpvr_set_audio(dev, dev->options.audio_input+1,
187 dev->options.audio_codec);
188
189 hdpvr_set_bitrate(dev);
190 hdpvr_config_call(dev, CTRL_BITRATE_MODE_VALUE,
191 dev->options.bitrate_mode);
192 hdpvr_config_call(dev, CTRL_GOP_MODE_VALUE, dev->options.gop_mode);
193
194 hdpvr_config_call(dev, CTRL_BRIGHTNESS, dev->options.brightness);
195 hdpvr_config_call(dev, CTRL_CONTRAST, dev->options.contrast);
196 hdpvr_config_call(dev, CTRL_HUE, dev->options.hue);
197 hdpvr_config_call(dev, CTRL_SATURATION, dev->options.saturation);
198 hdpvr_config_call(dev, CTRL_SHARPNESS, dev->options.sharpness);
199
200 return 0;
201}
202
