This source file includes following definitions.
- hdpvr_config_call
- get_video_info
- get_input_lines_info
- hdpvr_set_bitrate
- hdpvr_set_audio
- hdpvr_set_options
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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
23 int 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
44 int 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_DEBUG
58 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 #endif
63 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
76 int 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_DEBUG
89 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 #else
94 (void)ret;
95 #endif
96 lines = dev->usbc_buf[1] << 8 | dev->usbc_buf[0];
97 mutex_unlock(&dev->usbc_mutex);
98 return lines;
99 }
100
101
102 int 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
120 int 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 } else
150 ret = hdpvr_config_call(dev, CTRL_AUDIO_INPUT_VALUE, input);
151 error:
152 return ret;
153 }
154
155 int 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 }