linux_dsm_epyc7002/drivers/media/pci/ivtv/ivtv-controls.c
Thomas Gleixner 1a59d1b8e0 treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 156
Based on 1 normalized pattern(s):

  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

extracted by the scancode license scanner the SPDX license identifier

  GPL-2.0-or-later

has been chosen to replace the boilerplate/reference in 1334 file(s).

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Allison Randal <allison@lohutok.net>
Reviewed-by: Richard Fontana <rfontana@redhat.com>
Cc: linux-spdx@vger.kernel.org
Link: https://lkml.kernel.org/r/20190527070033.113240726@linutronix.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-05-30 11:26:35 -07:00

154 lines
4.4 KiB
C

// SPDX-License-Identifier: GPL-2.0-or-later
/*
ioctl control functions
Copyright (C) 2003-2004 Kevin Thayer <nufan_wfk at yahoo.com>
Copyright (C) 2005-2007 Hans Verkuil <hverkuil@xs4all.nl>
*/
#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;
}
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;
}
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;
}
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;
}
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;
}
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;
}
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;
}
const struct v4l2_ctrl_ops ivtv_hdl_out_ops = {
.s_ctrl = ivtv_s_ctrl,
.g_volatile_ctrl = ivtv_g_volatile_ctrl,
};