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[media] hdpvr: allow g/s/enum/querystd when in legacy mode

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Both MythTV and gstreamer expect that they can set/get/query/enumerate the
standards, even if the input is the component input for which standards
really do not apply.

Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
This commit is contained in:
Hans Verkuil 2013-04-10 14:26:52 -03:00 committed by Mauro Carvalho Chehab
parent 3315c59a45
commit 5854bf8859
1 changed files with 26 additions and 11 deletions
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37
drivers/media/usb/hdpvr/hdpvr-video.c
View file

@ -571,13 +571,14 @@ static int vidioc_querycap(struct file *file, void *priv,
return 0;
}
static int vidioc_s_std(struct file *file, void *private_data,
static int vidioc_s_std(struct file *file, void *_fh,
v4l2_std_id std)
{
struct hdpvr_device *dev = video_drvdata(file);
struct hdpvr_fh *fh = _fh;
u8 std_type = 1;
if (dev->options.video_input == HDPVR_COMPONENT)
if (!fh->legacy_mode && dev->options.video_input == HDPVR_COMPONENT)
return -ENODATA;
if (dev->status != STATUS_IDLE)
return -EBUSY;
@ -590,25 +591,27 @@ static int vidioc_s_std(struct file *file, void *private_data,
return hdpvr_config_call(dev, CTRL_VIDEO_STD_TYPE, std_type);
}
static int vidioc_g_std(struct file *file, void *private_data,
static int vidioc_g_std(struct file *file, void *_fh,
v4l2_std_id *std)
{
struct hdpvr_device *dev = video_drvdata(file);
struct hdpvr_fh *fh = _fh;
if (dev->options.video_input == HDPVR_COMPONENT)
if (!fh->legacy_mode && dev->options.video_input == HDPVR_COMPONENT)
return -ENODATA;
*std = dev->cur_std;
return 0;
}
static int vidioc_querystd(struct file *file, void *fh, v4l2_std_id *a)
static int vidioc_querystd(struct file *file, void *_fh, v4l2_std_id *a)
{
struct hdpvr_device *dev = video_drvdata(file);
struct hdpvr_video_info *vid_info;
struct hdpvr_fh *fh = _fh;
if (dev->options.video_input == HDPVR_COMPONENT)
return -ENODATA;
*a = V4L2_STD_ALL;
if (dev->options.video_input == HDPVR_COMPONENT)
return fh->legacy_mode ? 0 : -ENODATA;
vid_info = get_video_info(dev);
if (vid_info == NULL)
return 0;
@ -742,8 +745,7 @@ static const char *iname[] = {
[HDPVR_COMPOSITE] = "Composite",
};
static int vidioc_enum_input(struct file *file, void *priv,
struct v4l2_input *i)
static int vidioc_enum_input(struct file *file, void *_fh, struct v4l2_input *i)
{
unsigned int n;
@ -764,7 +766,7 @@ static int vidioc_enum_input(struct file *file, void *priv,
return 0;
}
static int vidioc_s_input(struct file *file, void *private_data,
static int vidioc_s_input(struct file *file, void *_fh,
unsigned int index)
{
struct hdpvr_device *dev = video_drvdata(file);
@ -779,8 +781,20 @@ static int vidioc_s_input(struct file *file, void *private_data,
retval = hdpvr_config_call(dev, CTRL_VIDEO_INPUT_VALUE, index+1);
if (!retval) {
dev->options.video_input = index;
/*
* Unfortunately gstreamer calls ENUMSTD and bails out if it
* won't find any formats, even though component input is
* selected. This means that we have to leave tvnorms at
* V4L2_STD_ALL. We cannot use the 'legacy' trick since
* tvnorms is set at the device node level and not at the
* filehandle level.
*
* Comment this out for now, but if the legacy mode can be
* removed in the future, then this code should be enabled
* again.
dev->video_dev->tvnorms =
index != HDPVR_COMPONENT ? V4L2_STD_ALL : 0;
(index != HDPVR_COMPONENT) ? V4L2_STD_ALL : 0;
*/
}
return retval;
@ -1126,6 +1140,7 @@ static const struct video_device hdpvr_video_template = {
.fops = &hdpvr_fops,
.release = hdpvr_device_release,
.ioctl_ops = &hdpvr_ioctl_ops,
.tvnorms = V4L2_STD_ALL,
};
static const struct v4l2_ctrl_ops hdpvr_ctrl_ops = {