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media: tegra-video: Add support for V4L2_PIX_FMT_NV16 

NV16 are two-plane versions of YUV422 format.

VI/CSI surface0 registers corresponds to first Y plane and
surface1 registers corresponds to seconds UV plane.

This patch updates image size for NV16 format to include both planes
and programs VI/CSI surface1 registers for UV plane capture.

Signed-off-by: Sowjanya Komatineni <skomatineni@nvidia.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:
Sowjanya Komatineni 2020-12-11 18:02:33 +01:00 committed by Mauro Carvalho Chehab
parent 689bfcac95
commit fbef4d6bb9
2 changed files with 15 additions and 0 deletions
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13
drivers/staging/media/tegra-video/tegra210.c
View File

@ -287,6 +287,7 @@ static int tegra_channel_capture_frame(struct tegra_vi_channel *chan,
{
u32 thresh, value, frame_start, mw_ack_done;
int bytes_per_line = chan->format.bytesperline;
u32 sizeimage = chan->format.sizeimage;
int err;
/* program buffer address by using surface 0 */
@ -295,6 +296,18 @@ static int tegra_channel_capture_frame(struct tegra_vi_channel *chan,
vi_csi_write(chan, TEGRA_VI_CSI_SURFACE0_OFFSET_LSB, buf->addr);
vi_csi_write(chan, TEGRA_VI_CSI_SURFACE0_STRIDE, bytes_per_line);
/*
* Program surface 1 for UV plane with offset sizeimage from Y plane.
*/
if (chan->fmtinfo->fourcc == V4L2_PIX_FMT_NV16) {
vi_csi_write(chan, TEGRA_VI_CSI_SURFACE1_OFFSET_MSB,
((u64)buf->addr + sizeimage / 2) >> 32);
vi_csi_write(chan, TEGRA_VI_CSI_SURFACE1_OFFSET_LSB,
buf->addr + sizeimage / 2);
vi_csi_write(chan, TEGRA_VI_CSI_SURFACE1_STRIDE,
bytes_per_line);
}
/*
* Tegra VI block interacts with host1x syncpt for synchronizing
* programmed condition of capture state and hardware operation.

2
drivers/staging/media/tegra-video/vi.c
View File

@ -484,6 +484,8 @@ static void tegra_channel_fmt_align(struct tegra_vi_channel *chan,
pix->bytesperline = clamp(bpl, min_bpl, max_bpl);
pix->sizeimage = pix->bytesperline * pix->height;
if (pix->pixelformat == V4L2_PIX_FMT_NV16)
pix->sizeimage *= 2;
}
static int __tegra_channel_try_format(struct tegra_vi_channel *chan,