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media: rcar-vin: Make use of V4L2_CAP_IO_MC 

Set the V4L2_CAP_IO_MC capability flag and remove the driver specific
vidioc_enum_input, vidioc_g_input and vidioc_s_input callbacks for the
media controller enabled part of the driver. Also add support mbus_code
filtering for format enumeration.

Signed-off-by: Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
This commit is contained in:
Niklas Söderlund 2020-04-21 15:57:41 +02:00 committed by Mauro Carvalho Chehab
parent e5b6b07a1b
commit d5f74a1eff
1 changed files with 24 additions and 16 deletions
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40
drivers/media/platform/rcar-vin/rcar-v4l2.c
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@ -343,6 +343,29 @@ static int rvin_enum_fmt_vid_cap(struct file *file, void *priv,
unsigned int i;
int matched;
/*
* If mbus_code is set only enumerate supported pixel formats for that
* bus code. Converting from YCbCr to RGB and RGB to YCbCr is possible
* with VIN, so all supported YCbCr and RGB media bus codes can produce
* all of the related pixel formats. If mbus_code is not set enumerate
* all possible pixelformats.
*
* TODO: Once raw capture formats are added to the driver this needs
* to be extended so raw media bus codes only result in raw pixel
* formats.
*/
switch (f->mbus_code) {
case 0:
case MEDIA_BUS_FMT_YUYV8_1X16:
case MEDIA_BUS_FMT_UYVY8_1X16:
case MEDIA_BUS_FMT_UYVY8_2X8:
case MEDIA_BUS_FMT_UYVY10_2X10:
case MEDIA_BUS_FMT_RGB888_1X24:
break;
default:
return -EINVAL;
}
matched = -1;
for (i = 0; i < ARRAY_SIZE(rvin_formats); i++) {
if (rvin_format_from_pixel(vin, rvin_formats[i].fourcc))
@ -767,18 +790,6 @@ static int rvin_mc_s_fmt_vid_cap(struct file *file, void *priv,
return 0;
}
static int rvin_mc_enum_input(struct file *file, void *priv,
struct v4l2_input *i)
{
if (i->index != 0)
return -EINVAL;
i->type = V4L2_INPUT_TYPE_CAMERA;
strscpy(i->name, "Camera", sizeof(i->name));
return 0;
}
static const struct v4l2_ioctl_ops rvin_mc_ioctl_ops = {
.vidioc_querycap = rvin_querycap,
.vidioc_try_fmt_vid_cap = rvin_mc_try_fmt_vid_cap,
@ -786,10 +797,6 @@ static const struct v4l2_ioctl_ops rvin_mc_ioctl_ops = {
.vidioc_s_fmt_vid_cap = rvin_mc_s_fmt_vid_cap,
.vidioc_enum_fmt_vid_cap = rvin_enum_fmt_vid_cap,
.vidioc_enum_input = rvin_mc_enum_input,
.vidioc_g_input = rvin_g_input,
.vidioc_s_input = rvin_s_input,
.vidioc_reqbufs = vb2_ioctl_reqbufs,
.vidioc_create_bufs = vb2_ioctl_create_bufs,
.vidioc_querybuf = vb2_ioctl_querybuf,
@ -961,6 +968,7 @@ int rvin_v4l2_register(struct rvin_dev *vin)
vin->format.colorspace = RVIN_DEFAULT_COLORSPACE;
if (vin->info->use_mc) {
vdev->device_caps |= V4L2_CAP_IO_MC;
vdev->ioctl_ops = &rvin_mc_ioctl_ops;
} else {
vdev->ioctl_ops = &rvin_ioctl_ops;