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1a0adaf3 HV |
1 | /* |
2 | ioctl control functions | |
3 | Copyright (C) 2003-2004 Kevin Thayer <nufan_wfk at yahoo.com> | |
4 | Copyright (C) 2005-2007 Hans Verkuil <hverkuil@xs4all.nl> | |
5 | ||
6 | This program is free software; you can redistribute it and/or modify | |
7 | it under the terms of the GNU General Public License as published by | |
8 | the Free Software Foundation; either version 2 of the License, or | |
9 | (at your option) any later version. | |
10 | ||
11 | This program is distributed in the hope that it will be useful, | |
12 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
13 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
14 | GNU General Public License for more details. | |
15 | ||
16 | You should have received a copy of the GNU General Public License | |
17 | along with this program; if not, write to the Free Software | |
18 | Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA | |
19 | */ | |
20 | ||
21 | #include "ivtv-driver.h" | |
1a0adaf3 | 22 | #include "ivtv-ioctl.h" |
1a0adaf3 HV |
23 | #include "ivtv-controls.h" |
24 | ||
f7b80e69 | 25 | static int ivtv_s_stream_vbi_fmt(struct cx2341x_handler *cxhdl, u32 fmt) |
1a0adaf3 | 26 | { |
f7b80e69 | 27 | struct ivtv *itv = container_of(cxhdl, struct ivtv, cxhdl); |
1a0adaf3 HV |
28 | |
29 | /* First try to allocate sliced VBI buffers if needed. */ | |
30 | if (fmt && itv->vbi.sliced_mpeg_data[0] == NULL) { | |
31 | int i; | |
32 | ||
33 | for (i = 0; i < IVTV_VBI_FRAMES; i++) { | |
34 | /* Yuck, hardcoded. Needs to be a define */ | |
35 | itv->vbi.sliced_mpeg_data[i] = kmalloc(2049, GFP_KERNEL); | |
36 | if (itv->vbi.sliced_mpeg_data[i] == NULL) { | |
37 | while (--i >= 0) { | |
38 | kfree(itv->vbi.sliced_mpeg_data[i]); | |
39 | itv->vbi.sliced_mpeg_data[i] = NULL; | |
40 | } | |
41 | return -ENOMEM; | |
42 | } | |
43 | } | |
44 | } | |
45 | ||
46 | itv->vbi.insert_mpeg = fmt; | |
47 | ||
48 | if (itv->vbi.insert_mpeg == 0) { | |
49 | return 0; | |
50 | } | |
51 | /* Need sliced data for mpeg insertion */ | |
feb5bce2 | 52 | if (ivtv_get_service_set(itv->vbi.sliced_in) == 0) { |
1a0adaf3 HV |
53 | if (itv->is_60hz) |
54 | itv->vbi.sliced_in->service_set = V4L2_SLICED_CAPTION_525; | |
55 | else | |
56 | itv->vbi.sliced_in->service_set = V4L2_SLICED_WSS_625; | |
feb5bce2 | 57 | ivtv_expand_service_set(itv->vbi.sliced_in, itv->is_50hz); |
1a0adaf3 HV |
58 | } |
59 | return 0; | |
60 | } | |
61 | ||
f7b80e69 | 62 | static int ivtv_s_video_encoding(struct cx2341x_handler *cxhdl, u32 val) |
1a0adaf3 | 63 | { |
f7b80e69 HV |
64 | struct ivtv *itv = container_of(cxhdl, struct ivtv, cxhdl); |
65 | int is_mpeg1 = val == V4L2_MPEG_VIDEO_ENCODING_MPEG_1; | |
66 | struct v4l2_mbus_framefmt fmt; | |
67 | ||
68 | /* fix videodecoder resolution */ | |
69 | fmt.width = cxhdl->width / (is_mpeg1 ? 2 : 1); | |
70 | fmt.height = cxhdl->height; | |
71 | fmt.code = V4L2_MBUS_FMT_FIXED; | |
72 | v4l2_subdev_call(itv->sd_video, video, s_mbus_fmt, &fmt); | |
73 | return 0; | |
3f038d80 | 74 | } |
1a0adaf3 | 75 | |
f7b80e69 | 76 | static int ivtv_s_audio_sampling_freq(struct cx2341x_handler *cxhdl, u32 idx) |
3f038d80 | 77 | { |
f7b80e69 HV |
78 | static const u32 freqs[3] = { 44100, 48000, 32000 }; |
79 | struct ivtv *itv = container_of(cxhdl, struct ivtv, cxhdl); | |
1a0adaf3 | 80 | |
f7b80e69 HV |
81 | /* The audio clock of the digitizer must match the codec sample |
82 | rate otherwise you get some very strange effects. */ | |
83 | if (idx < ARRAY_SIZE(freqs)) | |
84 | ivtv_call_all(itv, audio, s_clock_freq, freqs[idx]); | |
85 | return 0; | |
3f038d80 | 86 | } |
1a0adaf3 | 87 | |
f7b80e69 | 88 | static int ivtv_s_audio_mode(struct cx2341x_handler *cxhdl, u32 val) |
3f038d80 | 89 | { |
f7b80e69 | 90 | struct ivtv *itv = container_of(cxhdl, struct ivtv, cxhdl); |
3f038d80 | 91 | |
f7b80e69 HV |
92 | itv->dualwatch_stereo_mode = val; |
93 | return 0; | |
1a0adaf3 | 94 | } |
f7b80e69 HV |
95 | |
96 | struct cx2341x_handler_ops ivtv_cxhdl_ops = { | |
97 | .s_audio_mode = ivtv_s_audio_mode, | |
98 | .s_audio_sampling_freq = ivtv_s_audio_sampling_freq, | |
99 | .s_video_encoding = ivtv_s_video_encoding, | |
100 | .s_stream_vbi_fmt = ivtv_s_stream_vbi_fmt, | |
101 | }; |