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Commit | Line | Data |
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1c1e45d1 HV |
1 | /* |
2 | * cx18 ioctl control functions | |
3 | * | |
4 | * Derived from ivtv-controls.c | |
5 | * | |
6 | * Copyright (C) 2007 Hans Verkuil <hverkuil@xs4all.nl> | |
7 | * | |
8 | * This program is free software; you can redistribute it and/or modify | |
9 | * it under the terms of the GNU General Public License as published by | |
10 | * the Free Software Foundation; either version 2 of the License, or | |
11 | * (at your option) any later version. | |
12 | * | |
13 | * This program is distributed in the hope that it will be useful, | |
14 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
15 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
16 | * GNU General Public License for more details. | |
1c1e45d1 | 17 | */ |
225aeb1c | 18 | #include <linux/kernel.h> |
5a0e3ad6 | 19 | #include <linux/slab.h> |
1c1e45d1 HV |
20 | |
21 | #include "cx18-driver.h" | |
1c1e45d1 HV |
22 | #include "cx18-cards.h" |
23 | #include "cx18-ioctl.h" | |
24 | #include "cx18-audio.h" | |
1c1e45d1 HV |
25 | #include "cx18-mailbox.h" |
26 | #include "cx18-controls.h" | |
27 | ||
a75b9be1 | 28 | static int cx18_s_stream_vbi_fmt(struct cx2341x_handler *cxhdl, u32 fmt) |
1c1e45d1 | 29 | { |
a75b9be1 HV |
30 | struct cx18 *cx = container_of(cxhdl, struct cx18, cxhdl); |
31 | int type = cxhdl->stream_type->val; | |
ff2a2001 | 32 | |
31554ae5 | 33 | if (atomic_read(&cx->ana_capturing) > 0) |
1c1e45d1 HV |
34 | return -EBUSY; |
35 | ||
49a53750 | 36 | if (fmt != V4L2_MPEG_STREAM_VBI_FMT_IVTV || |
0c629252 AW |
37 | !(type == V4L2_MPEG_STREAM_TYPE_MPEG2_PS || |
38 | type == V4L2_MPEG_STREAM_TYPE_MPEG2_DVD || | |
39 | type == V4L2_MPEG_STREAM_TYPE_MPEG2_SVCD)) { | |
40 | /* Only IVTV fmt VBI insertion & only MPEG-2 PS type streams */ | |
49a53750 | 41 | cx->vbi.insert_mpeg = V4L2_MPEG_STREAM_VBI_FMT_NONE; |
6beb1388 | 42 | CX18_DEBUG_INFO("disabled insertion of sliced VBI data into the MPEG stream\n"); |
49a53750 AW |
43 | return 0; |
44 | } | |
45 | ||
46 | /* Allocate sliced VBI buffers if needed. */ | |
47 | if (cx->vbi.sliced_mpeg_data[0] == NULL) { | |
1c1e45d1 HV |
48 | int i; |
49 | ||
50 | for (i = 0; i < CX18_VBI_FRAMES; i++) { | |
302df970 AW |
51 | cx->vbi.sliced_mpeg_data[i] = |
52 | kmalloc(CX18_SLICED_MPEG_DATA_BUFSZ, GFP_KERNEL); | |
1c1e45d1 HV |
53 | if (cx->vbi.sliced_mpeg_data[i] == NULL) { |
54 | while (--i >= 0) { | |
55 | kfree(cx->vbi.sliced_mpeg_data[i]); | |
56 | cx->vbi.sliced_mpeg_data[i] = NULL; | |
57 | } | |
49a53750 AW |
58 | cx->vbi.insert_mpeg = |
59 | V4L2_MPEG_STREAM_VBI_FMT_NONE; | |
6beb1388 | 60 | CX18_WARN("Unable to allocate buffers for sliced VBI data insertion\n"); |
1c1e45d1 HV |
61 | return -ENOMEM; |
62 | } | |
63 | } | |
64 | } | |
65 | ||
66 | cx->vbi.insert_mpeg = fmt; | |
6beb1388 | 67 | CX18_DEBUG_INFO("enabled insertion of sliced VBI data into the MPEG PS,when sliced VBI is enabled\n"); |
1c1e45d1 | 68 | |
49a53750 AW |
69 | /* |
70 | * If our current settings have no lines set for capture, store a valid, | |
71 | * default set of service lines to capture, in our current settings. | |
72 | */ | |
aed6abd6 | 73 | if (cx18_get_service_set(cx->vbi.sliced_in) == 0) { |
1c1e45d1 | 74 | if (cx->is_60hz) |
49a53750 AW |
75 | cx->vbi.sliced_in->service_set = |
76 | V4L2_SLICED_CAPTION_525; | |
1c1e45d1 HV |
77 | else |
78 | cx->vbi.sliced_in->service_set = V4L2_SLICED_WSS_625; | |
aed6abd6 | 79 | cx18_expand_service_set(cx->vbi.sliced_in, cx->is_50hz); |
1c1e45d1 HV |
80 | } |
81 | return 0; | |
82 | } | |
83 | ||
a75b9be1 | 84 | static int cx18_s_video_encoding(struct cx2341x_handler *cxhdl, u32 val) |
1c1e45d1 | 85 | { |
a75b9be1 HV |
86 | struct cx18 *cx = container_of(cxhdl, struct cx18, cxhdl); |
87 | int is_mpeg1 = val == V4L2_MPEG_VIDEO_ENCODING_MPEG_1; | |
ebf984bb HV |
88 | struct v4l2_subdev_format format = { |
89 | .which = V4L2_SUBDEV_FORMAT_ACTIVE, | |
90 | }; | |
91 | struct v4l2_mbus_framefmt *fmt = &format.format; | |
a75b9be1 HV |
92 | |
93 | /* fix videodecoder resolution */ | |
ebf984bb HV |
94 | fmt->width = cxhdl->width / (is_mpeg1 ? 2 : 1); |
95 | fmt->height = cxhdl->height; | |
96 | fmt->code = MEDIA_BUS_FMT_FIXED; | |
97 | v4l2_subdev_call(cx->sd_av, pad, set_fmt, NULL, &format); | |
a75b9be1 | 98 | return 0; |
3b6fe58f | 99 | } |
1c1e45d1 | 100 | |
a75b9be1 | 101 | static int cx18_s_audio_sampling_freq(struct cx2341x_handler *cxhdl, u32 idx) |
3b6fe58f | 102 | { |
a75b9be1 HV |
103 | static const u32 freqs[3] = { 44100, 48000, 32000 }; |
104 | struct cx18 *cx = container_of(cxhdl, struct cx18, cxhdl); | |
1c1e45d1 | 105 | |
a75b9be1 HV |
106 | /* The audio clock of the digitizer must match the codec sample |
107 | rate otherwise you get some very strange effects. */ | |
108 | if (idx < ARRAY_SIZE(freqs)) | |
109 | cx18_call_all(cx, audio, s_clock_freq, freqs[idx]); | |
110 | return 0; | |
3b6fe58f | 111 | } |
1c1e45d1 | 112 | |
a75b9be1 | 113 | static int cx18_s_audio_mode(struct cx2341x_handler *cxhdl, u32 val) |
3b6fe58f | 114 | { |
a75b9be1 | 115 | struct cx18 *cx = container_of(cxhdl, struct cx18, cxhdl); |
3b6fe58f | 116 | |
a75b9be1 HV |
117 | cx->dualwatch_stereo_mode = val; |
118 | return 0; | |
1c1e45d1 | 119 | } |
a75b9be1 | 120 | |
083206fc | 121 | const struct cx2341x_handler_ops cx18_cxhdl_ops = { |
a75b9be1 HV |
122 | .s_audio_mode = cx18_s_audio_mode, |
123 | .s_audio_sampling_freq = cx18_s_audio_sampling_freq, | |
124 | .s_video_encoding = cx18_s_video_encoding, | |
125 | .s_stream_vbi_fmt = cx18_s_stream_vbi_fmt, | |
126 | }; |