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OpenCloudOS-Kernel/drivers/media/video/ivtv/ivtv-controls.c

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/*
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-cards.h"
#include "ivtv-ioctl.h"
#include "ivtv-routing.h"
#include "ivtv-i2c.h"
#include "ivtv-mailbox.h"
#include "ivtv-controls.h"
static const u32 user_ctrls[] = {
V4L2_CID_USER_CLASS,
V4L2_CID_BRIGHTNESS,
V4L2_CID_CONTRAST,
V4L2_CID_SATURATION,
V4L2_CID_HUE,
V4L2_CID_AUDIO_VOLUME,
V4L2_CID_AUDIO_BALANCE,
V4L2_CID_AUDIO_BASS,
V4L2_CID_AUDIO_TREBLE,
V4L2_CID_AUDIO_MUTE,
V4L2_CID_AUDIO_LOUDNESS,
0
};
static const u32 *ctrl_classes[] = {
user_ctrls,
cx2341x_mpeg_ctrls,
NULL
};
static int ivtv_queryctrl(struct ivtv *itv, struct v4l2_queryctrl *qctrl)
{
const char *name;
IVTV_DEBUG_IOCTL("VIDIOC_QUERYCTRL(%08x)\n", qctrl->id);
qctrl->id = v4l2_ctrl_next(ctrl_classes, qctrl->id);
if (qctrl->id == 0)
return -EINVAL;
switch (qctrl->id) {
/* Standard V4L2 controls */
case V4L2_CID_BRIGHTNESS:
case V4L2_CID_HUE:
case V4L2_CID_SATURATION:
case V4L2_CID_CONTRAST:
if (itv->video_dec_func(itv, VIDIOC_QUERYCTRL, qctrl))
qctrl->flags |= V4L2_CTRL_FLAG_DISABLED;
return 0;
case V4L2_CID_AUDIO_VOLUME:
case V4L2_CID_AUDIO_MUTE:
case V4L2_CID_AUDIO_BALANCE:
case V4L2_CID_AUDIO_BASS:
case V4L2_CID_AUDIO_TREBLE:
case V4L2_CID_AUDIO_LOUDNESS:
if (ivtv_i2c_hw(itv, itv->card->hw_audio_ctrl, VIDIOC_QUERYCTRL, qctrl))
qctrl->flags |= V4L2_CTRL_FLAG_DISABLED;
return 0;
default:
if (cx2341x_ctrl_query(&itv->params, qctrl))
qctrl->flags |= V4L2_CTRL_FLAG_DISABLED;
return 0;
}
strncpy(qctrl->name, name, sizeof(qctrl->name) - 1);
qctrl->name[sizeof(qctrl->name) - 1] = 0;
return 0;
}
static int ivtv_querymenu(struct ivtv *itv, struct v4l2_querymenu *qmenu)
{
struct v4l2_queryctrl qctrl;
qctrl.id = qmenu->id;
ivtv_queryctrl(itv, &qctrl);
return v4l2_ctrl_query_menu(qmenu, &qctrl, cx2341x_ctrl_get_menu(qmenu->id));
}
static int ivtv_s_ctrl(struct ivtv *itv, struct v4l2_control *vctrl)
{
s32 v = vctrl->value;
IVTV_DEBUG_IOCTL("VIDIOC_S_CTRL(%08x, %x)\n", vctrl->id, v);
switch (vctrl->id) {
/* Standard V4L2 controls */
case V4L2_CID_BRIGHTNESS:
case V4L2_CID_HUE:
case V4L2_CID_SATURATION:
case V4L2_CID_CONTRAST:
return itv->video_dec_func(itv, VIDIOC_S_CTRL, vctrl);
case V4L2_CID_AUDIO_VOLUME:
case V4L2_CID_AUDIO_MUTE:
case V4L2_CID_AUDIO_BALANCE:
case V4L2_CID_AUDIO_BASS:
case V4L2_CID_AUDIO_TREBLE:
case V4L2_CID_AUDIO_LOUDNESS:
return ivtv_i2c_hw(itv, itv->card->hw_audio_ctrl, VIDIOC_S_CTRL, vctrl);
default:
IVTV_DEBUG_IOCTL("invalid control %x\n", vctrl->id);
return -EINVAL;
}
return 0;
}
static int ivtv_g_ctrl(struct ivtv *itv, struct v4l2_control *vctrl)
{
IVTV_DEBUG_IOCTL("VIDIOC_G_CTRL(%08x)\n", vctrl->id);
switch (vctrl->id) {
/* Standard V4L2 controls */
case V4L2_CID_BRIGHTNESS:
case V4L2_CID_HUE:
case V4L2_CID_SATURATION:
case V4L2_CID_CONTRAST:
return itv->video_dec_func(itv, VIDIOC_G_CTRL, vctrl);
case V4L2_CID_AUDIO_VOLUME:
case V4L2_CID_AUDIO_MUTE:
case V4L2_CID_AUDIO_BALANCE:
case V4L2_CID_AUDIO_BASS:
case V4L2_CID_AUDIO_TREBLE:
case V4L2_CID_AUDIO_LOUDNESS:
return ivtv_i2c_hw(itv, itv->card->hw_audio_ctrl, VIDIOC_G_CTRL, vctrl);
default:
IVTV_DEBUG_IOCTL("invalid control %x\n", vctrl->id);
return -EINVAL;
}
return 0;
}
static int ivtv_setup_vbi_fmt(struct ivtv *itv, enum v4l2_mpeg_stream_vbi_fmt fmt)
{
if (!(itv->v4l2_cap & V4L2_CAP_SLICED_VBI_CAPTURE))
return -EINVAL;
if (atomic_read(&itv->capturing) > 0)
return -EBUSY;
/* 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 (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;
expand_service_set(itv->vbi.sliced_in, itv->is_50hz);
}
return 0;
}
int ivtv_control_ioctls(struct ivtv *itv, unsigned int cmd, void *arg)
{
struct v4l2_control ctrl;
switch (cmd) {
case VIDIOC_QUERYMENU:
IVTV_DEBUG_IOCTL("VIDIOC_QUERYMENU\n");
return ivtv_querymenu(itv, arg);
case VIDIOC_QUERYCTRL:
return ivtv_queryctrl(itv, arg);
case VIDIOC_S_CTRL:
return ivtv_s_ctrl(itv, arg);
case VIDIOC_G_CTRL:
return ivtv_g_ctrl(itv, arg);
case VIDIOC_S_EXT_CTRLS:
{
struct v4l2_ext_controls *c = arg;
if (c->ctrl_class == V4L2_CTRL_CLASS_USER) {
int i;
int err = 0;
for (i = 0; i < c->count; i++) {
ctrl.id = c->controls[i].id;
ctrl.value = c->controls[i].value;
err = ivtv_s_ctrl(itv, &ctrl);
c->controls[i].value = ctrl.value;
if (err) {
c->error_idx = i;
break;
}
}
return err;
}
IVTV_DEBUG_IOCTL("VIDIOC_S_EXT_CTRLS\n");
if (c->ctrl_class == V4L2_CTRL_CLASS_MPEG) {
static u32 freqs[3] = { 44100, 48000, 32000 };
struct cx2341x_mpeg_params p = itv->params;
int err = cx2341x_ext_ctrls(&p, atomic_read(&itv->capturing), arg, cmd);
unsigned idx;
if (err)
return err;
if (p.video_encoding != itv->params.video_encoding) {
int is_mpeg1 = p.video_encoding ==
V4L2_MPEG_VIDEO_ENCODING_MPEG_1;
struct v4l2_format fmt;
/* fix videodecoder resolution */
fmt.type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
fmt.fmt.pix.width = itv->params.width / (is_mpeg1 ? 2 : 1);
fmt.fmt.pix.height = itv->params.height;
itv->video_dec_func(itv, VIDIOC_S_FMT, &fmt);
}
err = cx2341x_update(itv, ivtv_api_func, &itv->params, &p);
if (!err && itv->params.stream_vbi_fmt != p.stream_vbi_fmt) {
err = ivtv_setup_vbi_fmt(itv, p.stream_vbi_fmt);
}
itv->params = p;
itv->dualwatch_stereo_mode = p.audio_properties & 0x0300;
idx = p.audio_properties & 0x03;
/* The audio clock of the digitizer must match the codec sample
rate otherwise you get some very strange effects. */
if (idx < sizeof(freqs))
ivtv_call_i2c_clients(itv, VIDIOC_INT_AUDIO_CLOCK_FREQ, &freqs[idx]);
return err;
}
return -EINVAL;
}
case VIDIOC_G_EXT_CTRLS:
{
struct v4l2_ext_controls *c = arg;
if (c->ctrl_class == V4L2_CTRL_CLASS_USER) {
int i;
int err = 0;
for (i = 0; i < c->count; i++) {
ctrl.id = c->controls[i].id;
ctrl.value = c->controls[i].value;
err = ivtv_g_ctrl(itv, &ctrl);
c->controls[i].value = ctrl.value;
if (err) {
c->error_idx = i;
break;
}
}
return err;
}
IVTV_DEBUG_IOCTL("VIDIOC_G_EXT_CTRLS\n");
if (c->ctrl_class == V4L2_CTRL_CLASS_MPEG)
return cx2341x_ext_ctrls(&itv->params, 0, arg, cmd);
return -EINVAL;
}
case VIDIOC_TRY_EXT_CTRLS:
{
struct v4l2_ext_controls *c = arg;
IVTV_DEBUG_IOCTL("VIDIOC_TRY_EXT_CTRLS\n");
if (c->ctrl_class == V4L2_CTRL_CLASS_MPEG)
return cx2341x_ext_ctrls(&itv->params, atomic_read(&itv->capturing), arg, cmd);
return -EINVAL;
}
default:
return -EINVAL;
}
return 0;
}
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