Hi Shaik,
On 11/07/2012 07:37 AM, Shaik Ameer Basha wrote:
Adding V4L2_PIX_FMT_NV12MT_16X16 to G-Scaler supported formats.
If the output or input format is V4L2_PIX_FMT_NV12MT_16X16, configure
G-Scaler to use GSC_IN_TILE_MODE.
Signed-off-by: Shaik Ameer Basha<shaik.ameer@xxxxxxxxxxx>
---
drivers/media/platform/exynos-gsc/gsc-core.c | 9 +++++++++
drivers/media/platform/exynos-gsc/gsc-core.h | 5 +++++
drivers/media/platform/exynos-gsc/gsc-regs.c | 6 ++++++
3 files changed, 20 insertions(+), 0 deletions(-)
diff --git a/drivers/media/platform/exynos-gsc/gsc-core.c b/drivers/media/platform/exynos-gsc/gsc-core.c
index cc7b218..00f1013 100644
--- a/drivers/media/platform/exynos-gsc/gsc-core.c
+++ b/drivers/media/platform/exynos-gsc/gsc-core.c
@@ -185,6 +185,15 @@ static const struct gsc_fmt gsc_formats[] = {
.corder = GSC_CRCB,
.num_planes = 3,
.num_comp = 3,
+ }, {
+ .name = "YUV 4:2:0 non-contig. 2p, Y/CbCr, tiled",
I have applied this patch to my tree for v3.8, and I've shortened this
description like this
.name = "YUV 4:2:0 n.c. 2p, Y/CbCr tiled",
so it fits in 32 char buffer.
There are some too long format descriptions in the driver already.
Please check output of VIDIOC_ENUM_FMT ioctl, for instance with
'v4l2-ctl --list-fmt'.
+ .pixelformat = V4L2_PIX_FMT_NV12MT_16X16,
+ .depth = { 8, 4 },
+ .color = GSC_YUV420,
+ .yorder = GSC_LSB_Y,
+ .corder = GSC_CBCR,
+ .num_planes = 2,
+ .num_comp = 2,
}
};
diff --git a/drivers/media/platform/exynos-gsc/gsc-core.h b/drivers/media/platform/exynos-gsc/gsc-core.h
index 5f157ef..cc19bba 100644
--- a/drivers/media/platform/exynos-gsc/gsc-core.h
+++ b/drivers/media/platform/exynos-gsc/gsc-core.h
@@ -427,6 +427,11 @@ static inline void gsc_ctx_state_lock_clear(u32 state, struct gsc_ctx *ctx)
spin_unlock_irqrestore(&ctx->gsc_dev->slock, flags);
}
+static inline int is_tiled(const struct gsc_fmt *fmt)
+{
+ return fmt->pixelformat == V4L2_PIX_FMT_NV12MT_16X16;
+}
+
static inline void gsc_hw_enable_control(struct gsc_dev *dev, bool on)
{
u32 cfg = readl(dev->regs + GSC_ENABLE);
diff --git a/drivers/media/platform/exynos-gsc/gsc-regs.c b/drivers/media/platform/exynos-gsc/gsc-regs.c
index 0146b35..6f5b5a4 100644
--- a/drivers/media/platform/exynos-gsc/gsc-regs.c
+++ b/drivers/media/platform/exynos-gsc/gsc-regs.c
@@ -214,6 +214,9 @@ void gsc_hw_set_in_image_format(struct gsc_ctx *ctx)
break;
}
+ if (is_tiled(frame->fmt))
+ cfg |= GSC_IN_TILE_C_16x8 | GSC_IN_TILE_MODE;
+
writel(cfg, dev->regs + GSC_IN_CON);
}
@@ -334,6 +337,9 @@ void gsc_hw_set_out_image_format(struct gsc_ctx *ctx)
break;
}
+ if (is_tiled(frame->fmt))
+ cfg |= GSC_OUT_TILE_C_16x8 | GSC_OUT_TILE_MODE;
+
end_set:
writel(cfg, dev->regs + GSC_OUT_CON);
}
Thanks,
Sylwester
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