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SubjectRe: [PATCH v2 07/15] media: vimc: cap: Add multiplanar formats
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On 3/27/19 12:17 PM, André Almeida wrote:
> Add multiplanar formats to be exposed to the userspace as
> supported formats. Since we don't want to support multiplanar
> formats when the driver is in singleplanar mode, we only access
> the multiplanar formats array if the multiplanar mode is enabled.
>
> Signed-off-by: André Almeida <andrealmeid@collabora.com>

Acked-by: Helen Koike <helen.koike@collabora.com>

> ---
> Changes in v2:
> - Change line break style
> - Add TODO comment
>
> drivers/media/platform/vimc/vimc-capture.c | 34 ++++++++++++++++++++--
> 1 file changed, 32 insertions(+), 2 deletions(-)
>
> diff --git a/drivers/media/platform/vimc/vimc-capture.c b/drivers/media/platform/vimc/vimc-capture.c
> index 5e13c6580aff..a65611be63bb 100644
> --- a/drivers/media/platform/vimc/vimc-capture.c
> +++ b/drivers/media/platform/vimc/vimc-capture.c
> @@ -32,6 +32,10 @@
> #define IS_MULTIPLANAR(vcap) \
> (vcap->vdev.device_caps & V4L2_CAP_VIDEO_CAPTURE_MPLANE)
>
> +/**
> + * TODO: capture device should only enum formats that all subdevices on
> + * topology accepts
> + */
> static const u32 vimc_cap_supported_pixfmt[] = {
> V4L2_PIX_FMT_BGR24,
> V4L2_PIX_FMT_RGB24,
> @@ -58,6 +62,19 @@ static const u32 vimc_cap_supported_pixfmt[] = {
> V4L2_PIX_FMT_SRGGB12,
> };
>
> +static const u32 vimc_cap_supported_pixfmt_mp[] = {
> + V4L2_PIX_FMT_YUV420M,
> + V4L2_PIX_FMT_YVU420M,
> + V4L2_PIX_FMT_YUV422M,
> + V4L2_PIX_FMT_YVU422M,
> + V4L2_PIX_FMT_YUV444M,
> + V4L2_PIX_FMT_YVU444M,
> + V4L2_PIX_FMT_NV12M,
> + V4L2_PIX_FMT_NV21M,
> + V4L2_PIX_FMT_NV16M,
> + V4L2_PIX_FMT_NV61M,
> +};
> +
> struct vimc_cap_device {
> struct vimc_ent_device ved;
> struct video_device vdev;
> @@ -157,13 +174,26 @@ static int _vimc_cap_try_fmt_vid_cap_mp(struct file *file, void *priv,
> format->width, format->height);
> }
>
> +/**
> + * When multiplanar is true, consider that the vimc_cap_enum_fmt_vid_cap_mp
> + * is concantenate in the vimc_cap_enum_fmt_vid_cap array. Otherwise, just
> + * consider the single-planar array
> + */
> static int vimc_cap_enum_fmt_vid_cap(struct file *file, void *priv,
> struct v4l2_fmtdesc *f)
> {
> - if (f->index >= ARRAY_SIZE(vimc_cap_supported_pixfmt))
> + struct vimc_cap_device *vcap = video_drvdata(file);
> + const unsigned int sp_size = ARRAY_SIZE(vimc_cap_supported_pixfmt);
> + const unsigned int mp_size = ARRAY_SIZE(vimc_cap_supported_pixfmt_mp);
> +
> + if (f->index >= sp_size + (IS_MULTIPLANAR(vcap) ? mp_size : 0))
> return -EINVAL;
>
> - f->pixelformat = vimc_cap_supported_pixfmt[f->index];
> + if (f->index >= sp_size)
> + f->pixelformat =
> + vimc_cap_supported_pixfmt_mp[f->index - sp_size];
> + else
> + f->pixelformat = vimc_cap_supported_pixfmt[f->index];
>
> return 0;
> }
>

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