From: Sowjanya Komatineni Date: Fri, 11 Dec 2020 17:02:33 +0000 (+0100) Subject: media: tegra-video: Add support for V4L2_PIX_FMT_NV16 X-Git-Tag: v5.15~1736^2~336 X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=fbef4d6bb92e99e309cae1d251821ef22979a7f1;p=platform%2Fkernel%2Flinux-starfive.git 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 Signed-off-by: Hans Verkuil Signed-off-by: Mauro Carvalho Chehab --- diff --git a/drivers/staging/media/tegra-video/tegra210.c b/drivers/staging/media/tegra-video/tegra210.c index 68f09e4..b731aa5 100644 --- a/drivers/staging/media/tegra-video/tegra210.c +++ b/drivers/staging/media/tegra-video/tegra210.c @@ -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 */ @@ -296,6 +297,18 @@ static int tegra_channel_capture_frame(struct tegra_vi_channel *chan, 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. * Frame start and Memory write acknowledge syncpts has their own diff --git a/drivers/staging/media/tegra-video/vi.c b/drivers/staging/media/tegra-video/vi.c index 7edd35c..525c087 100644 --- a/drivers/staging/media/tegra-video/vi.c +++ b/drivers/staging/media/tegra-video/vi.c @@ -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,