Release 4.11 drivers/media/pci/cx18/cx18-controls.c
/*
* cx18 ioctl control functions
*
* Derived from ivtv-controls.c
*
* Copyright (C) 2007 Hans Verkuil <hverkuil@xs4all.nl>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*/
#include <linux/kernel.h>
#include <linux/slab.h>
#include "cx18-driver.h"
#include "cx18-cards.h"
#include "cx18-ioctl.h"
#include "cx18-audio.h"
#include "cx18-mailbox.h"
#include "cx18-controls.h"
static int cx18_s_stream_vbi_fmt(struct cx2341x_handler *cxhdl, u32 fmt)
{
struct cx18 *cx = container_of(cxhdl, struct cx18, cxhdl);
int type = cxhdl->stream_type->val;
if (atomic_read(&cx->ana_capturing) > 0)
return -EBUSY;
if (fmt != V4L2_MPEG_STREAM_VBI_FMT_IVTV ||
!(type == V4L2_MPEG_STREAM_TYPE_MPEG2_PS ||
type == V4L2_MPEG_STREAM_TYPE_MPEG2_DVD ||
type == V4L2_MPEG_STREAM_TYPE_MPEG2_SVCD)) {
/* Only IVTV fmt VBI insertion & only MPEG-2 PS type streams */
cx->vbi.insert_mpeg = V4L2_MPEG_STREAM_VBI_FMT_NONE;
CX18_DEBUG_INFO("disabled insertion of sliced VBI data into the MPEG stream\n");
return 0;
}
/* Allocate sliced VBI buffers if needed. */
if (cx->vbi.sliced_mpeg_data[0] == NULL) {
int i;
for (i = 0; i < CX18_VBI_FRAMES; i++) {
cx->vbi.sliced_mpeg_data[i] =
kmalloc(CX18_SLICED_MPEG_DATA_BUFSZ, GFP_KERNEL);
if (cx->vbi.sliced_mpeg_data[i] == NULL) {
while (--i >= 0) {
kfree(cx->vbi.sliced_mpeg_data[i]);
cx->vbi.sliced_mpeg_data[i] = NULL;
}
cx->vbi.insert_mpeg =
V4L2_MPEG_STREAM_VBI_FMT_NONE;
CX18_WARN("Unable to allocate buffers for sliced VBI data insertion\n");
return -ENOMEM;
}
}
}
cx->vbi.insert_mpeg = fmt;
CX18_DEBUG_INFO("enabled insertion of sliced VBI data into the MPEG PS,when sliced VBI is enabled\n");
/*
* If our current settings have no lines set for capture, store a valid,
* default set of service lines to capture, in our current settings.
*/
if (cx18_get_service_set(cx->vbi.sliced_in) == 0) {
if (cx->is_60hz)
cx->vbi.sliced_in->service_set =
V4L2_SLICED_CAPTION_525;
else
cx->vbi.sliced_in->service_set = V4L2_SLICED_WSS_625;
cx18_expand_service_set(cx->vbi.sliced_in, cx->is_50hz);
}
return 0;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Hans Verkuil | 211 | 75.36% | 5 | 45.45% |
| Andy Walls | 64 | 22.86% | 4 | 36.36% |
| Mauro Carvalho Chehab | 5 | 1.79% | 2 | 18.18% |
| Total | 280 | 100.00% | 11 | 100.00% |
static int cx18_s_video_encoding(struct cx2341x_handler *cxhdl, u32 val)
{
struct cx18 *cx = container_of(cxhdl, struct cx18, cxhdl);
int is_mpeg1 = val == V4L2_MPEG_VIDEO_ENCODING_MPEG_1;
struct v4l2_subdev_format format = {
.which = V4L2_SUBDEV_FORMAT_ACTIVE,
};
struct v4l2_mbus_framefmt *fmt = &format.format;
/* fix videodecoder resolution */
fmt->width = cxhdl->width / (is_mpeg1 ? 2 : 1);
fmt->height = cxhdl->height;
fmt->code = MEDIA_BUS_FMT_FIXED;
v4l2_subdev_call(cx->sd_av, pad, set_fmt, NULL, &format);
return 0;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Hans Verkuil | 100 | 93.46% | 4 | 50.00% |
| Andy Walls | 6 | 5.61% | 3 | 37.50% |
| Boris Brezillon | 1 | 0.93% | 1 | 12.50% |
| Total | 107 | 100.00% | 8 | 100.00% |
static int cx18_s_audio_sampling_freq(struct cx2341x_handler *cxhdl, u32 idx)
{
static const u32 freqs[3] = { 44100, 48000, 32000 };
struct cx18 *cx = container_of(cxhdl, struct cx18, cxhdl);
/* The audio clock of the digitizer must match the codec sample
rate otherwise you get some very strange effects. */
if (idx < ARRAY_SIZE(freqs))
cx18_call_all(cx, audio, s_clock_freq, freqs[idx]);
return 0;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Hans Verkuil | 47 | 65.28% | 2 | 33.33% |
| Andy Walls | 25 | 34.72% | 4 | 66.67% |
| Total | 72 | 100.00% | 6 | 100.00% |
static int cx18_s_audio_mode(struct cx2341x_handler *cxhdl, u32 val)
{
struct cx18 *cx = container_of(cxhdl, struct cx18, cxhdl);
cx->dualwatch_stereo_mode = val;
return 0;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Hans Verkuil | 30 | 78.95% | 3 | 75.00% |
| Andy Walls | 8 | 21.05% | 1 | 25.00% |
| Total | 38 | 100.00% | 4 | 100.00% |
const struct cx2341x_handler_ops cx18_cxhdl_ops = {
.s_audio_mode = cx18_s_audio_mode,
.s_audio_sampling_freq = cx18_s_audio_sampling_freq,
.s_video_encoding = cx18_s_video_encoding,
.s_stream_vbi_fmt = cx18_s_stream_vbi_fmt,
};
Overall Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Hans Verkuil | 432 | 78.69% | 7 | 33.33% |
| Andy Walls | 106 | 19.31% | 8 | 38.10% |
| Mauro Carvalho Chehab | 5 | 0.91% | 2 | 9.52% |
| Tejun Heo | 3 | 0.55% | 1 | 4.76% |
| Boris Brezillon | 1 | 0.18% | 1 | 4.76% |
| Julia Lawall | 1 | 0.18% | 1 | 4.76% |
| Sakari Ailus | 1 | 0.18% | 1 | 4.76% |
| Total | 549 | 100.00% | 21 | 100.00% |
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