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Commit | Line | Data |
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c942fddf | 1 | // SPDX-License-Identifier: GPL-2.0-or-later |
1c1e45d1 HV |
2 | /* |
3 | * cx18 ioctl control functions | |
4 | * | |
5 | * Derived from ivtv-controls.c | |
6 | * | |
7 | * Copyright (C) 2007 Hans Verkuil <hverkuil@xs4all.nl> | |
1c1e45d1 | 8 | */ |
225aeb1c | 9 | #include <linux/kernel.h> |
5a0e3ad6 | 10 | #include <linux/slab.h> |
1c1e45d1 HV |
11 | |
12 | #include "cx18-driver.h" | |
1c1e45d1 HV |
13 | #include "cx18-cards.h" |
14 | #include "cx18-ioctl.h" | |
15 | #include "cx18-audio.h" | |
1c1e45d1 HV |
16 | #include "cx18-mailbox.h" |
17 | #include "cx18-controls.h" | |
18 | ||
a75b9be1 | 19 | static int cx18_s_stream_vbi_fmt(struct cx2341x_handler *cxhdl, u32 fmt) |
1c1e45d1 | 20 | { |
a75b9be1 HV |
21 | struct cx18 *cx = container_of(cxhdl, struct cx18, cxhdl); |
22 | int type = cxhdl->stream_type->val; | |
ff2a2001 | 23 | |
31554ae5 | 24 | if (atomic_read(&cx->ana_capturing) > 0) |
1c1e45d1 HV |
25 | return -EBUSY; |
26 | ||
49a53750 | 27 | if (fmt != V4L2_MPEG_STREAM_VBI_FMT_IVTV || |
0c629252 AW |
28 | !(type == V4L2_MPEG_STREAM_TYPE_MPEG2_PS || |
29 | type == V4L2_MPEG_STREAM_TYPE_MPEG2_DVD || | |
30 | type == V4L2_MPEG_STREAM_TYPE_MPEG2_SVCD)) { | |
31 | /* Only IVTV fmt VBI insertion & only MPEG-2 PS type streams */ | |
49a53750 | 32 | cx->vbi.insert_mpeg = V4L2_MPEG_STREAM_VBI_FMT_NONE; |
6beb1388 | 33 | CX18_DEBUG_INFO("disabled insertion of sliced VBI data into the MPEG stream\n"); |
49a53750 AW |
34 | return 0; |
35 | } | |
36 | ||
37 | /* Allocate sliced VBI buffers if needed. */ | |
38 | if (cx->vbi.sliced_mpeg_data[0] == NULL) { | |
1c1e45d1 HV |
39 | int i; |
40 | ||
41 | for (i = 0; i < CX18_VBI_FRAMES; i++) { | |
302df970 AW |
42 | cx->vbi.sliced_mpeg_data[i] = |
43 | kmalloc(CX18_SLICED_MPEG_DATA_BUFSZ, GFP_KERNEL); | |
1c1e45d1 HV |
44 | if (cx->vbi.sliced_mpeg_data[i] == NULL) { |
45 | while (--i >= 0) { | |
46 | kfree(cx->vbi.sliced_mpeg_data[i]); | |
47 | cx->vbi.sliced_mpeg_data[i] = NULL; | |
48 | } | |
49a53750 AW |
49 | cx->vbi.insert_mpeg = |
50 | V4L2_MPEG_STREAM_VBI_FMT_NONE; | |
6beb1388 | 51 | CX18_WARN("Unable to allocate buffers for sliced VBI data insertion\n"); |
1c1e45d1 HV |
52 | return -ENOMEM; |
53 | } | |
54 | } | |
55 | } | |
56 | ||
57 | cx->vbi.insert_mpeg = fmt; | |
6beb1388 | 58 | CX18_DEBUG_INFO("enabled insertion of sliced VBI data into the MPEG PS,when sliced VBI is enabled\n"); |
1c1e45d1 | 59 | |
49a53750 AW |
60 | /* |
61 | * If our current settings have no lines set for capture, store a valid, | |
62 | * default set of service lines to capture, in our current settings. | |
63 | */ | |
aed6abd6 | 64 | if (cx18_get_service_set(cx->vbi.sliced_in) == 0) { |
1c1e45d1 | 65 | if (cx->is_60hz) |
49a53750 AW |
66 | cx->vbi.sliced_in->service_set = |
67 | V4L2_SLICED_CAPTION_525; | |
1c1e45d1 HV |
68 | else |
69 | cx->vbi.sliced_in->service_set = V4L2_SLICED_WSS_625; | |
aed6abd6 | 70 | cx18_expand_service_set(cx->vbi.sliced_in, cx->is_50hz); |
1c1e45d1 HV |
71 | } |
72 | return 0; | |
73 | } | |
74 | ||
a75b9be1 | 75 | static int cx18_s_video_encoding(struct cx2341x_handler *cxhdl, u32 val) |
1c1e45d1 | 76 | { |
a75b9be1 HV |
77 | struct cx18 *cx = container_of(cxhdl, struct cx18, cxhdl); |
78 | int is_mpeg1 = val == V4L2_MPEG_VIDEO_ENCODING_MPEG_1; | |
ebf984bb HV |
79 | struct v4l2_subdev_format format = { |
80 | .which = V4L2_SUBDEV_FORMAT_ACTIVE, | |
81 | }; | |
82 | struct v4l2_mbus_framefmt *fmt = &format.format; | |
a75b9be1 HV |
83 | |
84 | /* fix videodecoder resolution */ | |
ebf984bb HV |
85 | fmt->width = cxhdl->width / (is_mpeg1 ? 2 : 1); |
86 | fmt->height = cxhdl->height; | |
87 | fmt->code = MEDIA_BUS_FMT_FIXED; | |
88 | v4l2_subdev_call(cx->sd_av, pad, set_fmt, NULL, &format); | |
a75b9be1 | 89 | return 0; |
3b6fe58f | 90 | } |
1c1e45d1 | 91 | |
a75b9be1 | 92 | static int cx18_s_audio_sampling_freq(struct cx2341x_handler *cxhdl, u32 idx) |
3b6fe58f | 93 | { |
a75b9be1 HV |
94 | static const u32 freqs[3] = { 44100, 48000, 32000 }; |
95 | struct cx18 *cx = container_of(cxhdl, struct cx18, cxhdl); | |
1c1e45d1 | 96 | |
a75b9be1 HV |
97 | /* The audio clock of the digitizer must match the codec sample |
98 | rate otherwise you get some very strange effects. */ | |
99 | if (idx < ARRAY_SIZE(freqs)) | |
100 | cx18_call_all(cx, audio, s_clock_freq, freqs[idx]); | |
101 | return 0; | |
3b6fe58f | 102 | } |
1c1e45d1 | 103 | |
a75b9be1 | 104 | static int cx18_s_audio_mode(struct cx2341x_handler *cxhdl, u32 val) |
3b6fe58f | 105 | { |
a75b9be1 | 106 | struct cx18 *cx = container_of(cxhdl, struct cx18, cxhdl); |
3b6fe58f | 107 | |
a75b9be1 HV |
108 | cx->dualwatch_stereo_mode = val; |
109 | return 0; | |
1c1e45d1 | 110 | } |
a75b9be1 | 111 | |
083206fc | 112 | const struct cx2341x_handler_ops cx18_cxhdl_ops = { |
a75b9be1 HV |
113 | .s_audio_mode = cx18_s_audio_mode, |
114 | .s_audio_sampling_freq = cx18_s_audio_sampling_freq, | |
115 | .s_video_encoding = cx18_s_video_encoding, | |
116 | .s_stream_vbi_fmt = cx18_s_stream_vbi_fmt, | |
117 | }; |