Release 4.7 drivers/media/pci/ivtv/ivtv-controls.c
/*
ioctl control functions
Copyright (C) 2003-2004 Kevin Thayer <nufan_wfk at yahoo.com>
Copyright (C) 2005-2007 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.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#include "ivtv-driver.h"
#include "ivtv-ioctl.h"
#include "ivtv-controls.h"
#include "ivtv-mailbox.h"
static int ivtv_s_stream_vbi_fmt(struct cx2341x_handler *cxhdl, u32 fmt)
{
struct ivtv *itv = container_of(cxhdl, struct ivtv, cxhdl);
/* First try to allocate sliced VBI buffers if needed. */
if (fmt && itv->vbi.sliced_mpeg_data[0] == NULL) {
int i;
for (i = 0; i < IVTV_VBI_FRAMES; i++) {
/* Yuck, hardcoded. Needs to be a define */
itv->vbi.sliced_mpeg_data[i] = kmalloc(2049, GFP_KERNEL);
if (itv->vbi.sliced_mpeg_data[i] == NULL) {
while (--i >= 0) {
kfree(itv->vbi.sliced_mpeg_data[i]);
itv->vbi.sliced_mpeg_data[i] = NULL;
}
return -ENOMEM;
}
}
}
itv->vbi.insert_mpeg = fmt;
if (itv->vbi.insert_mpeg == 0) {
return 0;
}
/* Need sliced data for mpeg insertion */
if (ivtv_get_service_set(itv->vbi.sliced_in) == 0) {
if (itv->is_60hz)
itv->vbi.sliced_in->service_set = V4L2_SLICED_CAPTION_525;
else
itv->vbi.sliced_in->service_set = V4L2_SLICED_WSS_625;
ivtv_expand_service_set(itv->vbi.sliced_in, itv->is_50hz);
}
return 0;
}
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static int ivtv_s_video_encoding(struct cx2341x_handler *cxhdl, u32 val)
{
struct ivtv *itv = container_of(cxhdl, struct ivtv, cxhdl);
int is_mpeg1 = val == V4L2_MPEG_VIDEO_ENCODING_MPEG_1;
struct v4l2_subdev_format format = {
.which = V4L2_SUBDEV_FORMAT_ACTIVE,
};
/* fix videodecoder resolution */
format.format.width = cxhdl->width / (is_mpeg1 ? 2 : 1);
format.format.height = cxhdl->height;
format.format.code = MEDIA_BUS_FMT_FIXED;
v4l2_subdev_call(itv->sd_video, pad, set_fmt, NULL, &format);
return 0;
}
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static int ivtv_s_audio_sampling_freq(struct cx2341x_handler *cxhdl, u32 idx)
{
static const u32 freqs[3] = { 44100, 48000, 32000 };
struct ivtv *itv = container_of(cxhdl, struct ivtv, 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))
ivtv_call_all(itv, audio, s_clock_freq, freqs[idx]);
return 0;
}
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static int ivtv_s_audio_mode(struct cx2341x_handler *cxhdl, u32 val)
{
struct ivtv *itv = container_of(cxhdl, struct ivtv, cxhdl);
itv->dualwatch_stereo_mode = val;
return 0;
}
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const struct cx2341x_handler_ops ivtv_cxhdl_ops = {
.s_audio_mode = ivtv_s_audio_mode,
.s_audio_sampling_freq = ivtv_s_audio_sampling_freq,
.s_video_encoding = ivtv_s_video_encoding,
.s_stream_vbi_fmt = ivtv_s_stream_vbi_fmt,
};
int ivtv_g_pts_frame(struct ivtv *itv, s64 *pts, s64 *frame)
{
u32 data[CX2341X_MBOX_MAX_DATA];
if (test_bit(IVTV_F_I_VALID_DEC_TIMINGS, &itv->i_flags)) {
*pts = (s64)((u64)itv->last_dec_timing[2] << 32) |
(u64)itv->last_dec_timing[1];
*frame = itv->last_dec_timing[0];
return 0;
}
*pts = 0;
*frame = 0;
if (atomic_read(&itv->decoding)) {
if (ivtv_api(itv, CX2341X_DEC_GET_TIMING_INFO, 5, data)) {
IVTV_DEBUG_WARN("GET_TIMING: couldn't read clock\n");
return -EIO;
}
memcpy(itv->last_dec_timing, data, sizeof(itv->last_dec_timing));
set_bit(IVTV_F_I_VALID_DEC_TIMINGS, &itv->i_flags);
*pts = (s64)((u64) data[2] << 32) | (u64) data[1];
*frame = data[0];
/*timing->scr = (u64) (((u64) data[4] << 32) | (u64) (data[3]));*/
}
return 0;
}
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static int ivtv_g_volatile_ctrl(struct v4l2_ctrl *ctrl)
{
struct ivtv *itv = container_of(ctrl->handler, struct ivtv, cxhdl.hdl);
switch (ctrl->id) {
/* V4L2_CID_MPEG_VIDEO_DEC_PTS and V4L2_CID_MPEG_VIDEO_DEC_FRAME
control cluster */
case V4L2_CID_MPEG_VIDEO_DEC_PTS:
return ivtv_g_pts_frame(itv, itv->ctrl_pts->p_new.p_s64,
itv->ctrl_frame->p_new.p_s64);
}
return 0;
}
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static int ivtv_s_ctrl(struct v4l2_ctrl *ctrl)
{
struct ivtv *itv = container_of(ctrl->handler, struct ivtv, cxhdl.hdl);
switch (ctrl->id) {
/* V4L2_CID_MPEG_AUDIO_DEC_PLAYBACK and MULTILINGUAL_PLAYBACK
control cluster */
case V4L2_CID_MPEG_AUDIO_DEC_PLAYBACK:
itv->audio_stereo_mode = itv->ctrl_audio_playback->val - 1;
itv->audio_bilingual_mode = itv->ctrl_audio_multilingual_playback->val - 1;
ivtv_vapi(itv, CX2341X_DEC_SET_AUDIO_MODE, 2, itv->audio_bilingual_mode, itv->audio_stereo_mode);
break;
}
return 0;
}
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const struct v4l2_ctrl_ops ivtv_hdl_out_ops = {
.s_ctrl = ivtv_s_ctrl,
.g_volatile_ctrl = ivtv_g_volatile_ctrl,
};
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