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Subject[PATCH v2 2/4] media: cedrus: hevc: Add support for scaling matrix
Date
HEVC frames may use scaling list feature. Add support for it.

Signed-off-by: Jernej Skrabec <jernej.skrabec@siol.net>
---
drivers/staging/media/sunxi/cedrus/cedrus.c | 7 ++
drivers/staging/media/sunxi/cedrus/cedrus.h | 1 +
.../staging/media/sunxi/cedrus/cedrus_dec.c | 2 +
.../staging/media/sunxi/cedrus/cedrus_h265.c | 70 ++++++++++++++++++-
.../staging/media/sunxi/cedrus/cedrus_regs.h | 2 +
5 files changed, 81 insertions(+), 1 deletion(-)

diff --git a/drivers/staging/media/sunxi/cedrus/cedrus.c b/drivers/staging/media/sunxi/cedrus/cedrus.c
index c6ddd46eff82..bf68bc6b20c8 100644
--- a/drivers/staging/media/sunxi/cedrus/cedrus.c
+++ b/drivers/staging/media/sunxi/cedrus/cedrus.c
@@ -116,6 +116,13 @@ static const struct cedrus_control cedrus_controls[] = {
.codec = CEDRUS_CODEC_H265,
.required = true,
},
+ {
+ .cfg = {
+ .id = V4L2_CID_MPEG_VIDEO_HEVC_SCALING_MATRIX,
+ },
+ .codec = CEDRUS_CODEC_H265,
+ .required = true,
+ },
{
.cfg = {
.id = V4L2_CID_MPEG_VIDEO_HEVC_DECODE_MODE,
diff --git a/drivers/staging/media/sunxi/cedrus/cedrus.h b/drivers/staging/media/sunxi/cedrus/cedrus.h
index 96765555ab8a..d945f4f0ff2d 100644
--- a/drivers/staging/media/sunxi/cedrus/cedrus.h
+++ b/drivers/staging/media/sunxi/cedrus/cedrus.h
@@ -73,6 +73,7 @@ struct cedrus_h265_run {
const struct v4l2_ctrl_hevc_sps *sps;
const struct v4l2_ctrl_hevc_pps *pps;
const struct v4l2_ctrl_hevc_slice_params *slice_params;
+ const struct v4l2_ctrl_hevc_scaling_matrix *scaling_matrix;
};

struct cedrus_run {
diff --git a/drivers/staging/media/sunxi/cedrus/cedrus_dec.c b/drivers/staging/media/sunxi/cedrus/cedrus_dec.c
index 4a2fc33a1d79..327ed6c264dc 100644
--- a/drivers/staging/media/sunxi/cedrus/cedrus_dec.c
+++ b/drivers/staging/media/sunxi/cedrus/cedrus_dec.c
@@ -66,6 +66,8 @@ void cedrus_device_run(void *priv)
V4L2_CID_MPEG_VIDEO_HEVC_PPS);
run.h265.slice_params = cedrus_find_control_data(ctx,
V4L2_CID_MPEG_VIDEO_HEVC_SLICE_PARAMS);
+ run.h265.scaling_matrix = cedrus_find_control_data(ctx,
+ V4L2_CID_MPEG_VIDEO_HEVC_SCALING_MATRIX);
break;

default:
diff --git a/drivers/staging/media/sunxi/cedrus/cedrus_h265.c b/drivers/staging/media/sunxi/cedrus/cedrus_h265.c
index 6945dc74e1d7..888bfd5ca224 100644
--- a/drivers/staging/media/sunxi/cedrus/cedrus_h265.c
+++ b/drivers/staging/media/sunxi/cedrus/cedrus_h265.c
@@ -220,6 +220,69 @@ static void cedrus_h265_pred_weight_write(struct cedrus_dev *dev,
}
}

+static void cedrus_h265_write_scaling_list(struct cedrus_ctx *ctx,
+ struct cedrus_run *run)
+{
+ const struct v4l2_ctrl_hevc_scaling_matrix *scaling;
+ struct cedrus_dev *dev = ctx->dev;
+ u32 i, j, k, val;
+
+ scaling = run->h265.scaling_matrix;
+
+ cedrus_write(dev, VE_DEC_H265_SCALING_LIST_DC_COEF0,
+ (scaling->scaling_list_dc_coef_32x32[1] << 24) |
+ (scaling->scaling_list_dc_coef_32x32[0] << 16) |
+ (scaling->scaling_list_dc_coef_16x16[1] << 8) |
+ (scaling->scaling_list_dc_coef_16x16[0] << 0));
+
+ cedrus_write(dev, VE_DEC_H265_SCALING_LIST_DC_COEF1,
+ (scaling->scaling_list_dc_coef_16x16[5] << 24) |
+ (scaling->scaling_list_dc_coef_16x16[4] << 16) |
+ (scaling->scaling_list_dc_coef_16x16[3] << 8) |
+ (scaling->scaling_list_dc_coef_16x16[2] << 0));
+
+ cedrus_h265_sram_write_offset(dev, VE_DEC_H265_SRAM_OFFSET_SCALING_LISTS);
+
+ for (i = 0; i < 6; i++)
+ for (j = 0; j < 8; j++)
+ for (k = 0; k < 8; k += 4) {
+ val = ((u32)scaling->scaling_list_8x8[i][j + (k + 3) * 8] << 24) |
+ ((u32)scaling->scaling_list_8x8[i][j + (k + 2) * 8] << 16) |
+ ((u32)scaling->scaling_list_8x8[i][j + (k + 1) * 8] << 8) |
+ scaling->scaling_list_8x8[i][j + k * 8];
+ cedrus_write(dev, VE_DEC_H265_SRAM_DATA, val);
+ }
+
+ for (i = 0; i < 2; i++)
+ for (j = 0; j < 8; j++)
+ for (k = 0; k < 8; k += 4) {
+ val = ((u32)scaling->scaling_list_32x32[i][j + (k + 3) * 8] << 24) |
+ ((u32)scaling->scaling_list_32x32[i][j + (k + 2) * 8] << 16) |
+ ((u32)scaling->scaling_list_32x32[i][j + (k + 1) * 8] << 8) |
+ scaling->scaling_list_32x32[i][j + k * 8];
+ cedrus_write(dev, VE_DEC_H265_SRAM_DATA, val);
+ }
+
+ for (i = 0; i < 6; i++)
+ for (j = 0; j < 8; j++)
+ for (k = 0; k < 8; k += 4) {
+ val = ((u32)scaling->scaling_list_16x16[i][j + (k + 3) * 8] << 24) |
+ ((u32)scaling->scaling_list_16x16[i][j + (k + 2) * 8] << 16) |
+ ((u32)scaling->scaling_list_16x16[i][j + (k + 1) * 8] << 8) |
+ scaling->scaling_list_16x16[i][j + k * 8];
+ cedrus_write(dev, VE_DEC_H265_SRAM_DATA, val);
+ }
+
+ for (i = 0; i < 6; i++)
+ for (j = 0; j < 4; j++) {
+ val = ((u32)scaling->scaling_list_4x4[i][j + 12] << 24) |
+ ((u32)scaling->scaling_list_4x4[i][j + 8] << 16) |
+ ((u32)scaling->scaling_list_4x4[i][j + 4] << 8) |
+ scaling->scaling_list_4x4[i][j];
+ cedrus_write(dev, VE_DEC_H265_SRAM_DATA, val);
+ }
+}
+
static void cedrus_h265_setup(struct cedrus_ctx *ctx,
struct cedrus_run *run)
{
@@ -499,7 +562,12 @@ static void cedrus_h265_setup(struct cedrus_ctx *ctx,

/* Scaling list. */

- reg = VE_DEC_H265_SCALING_LIST_CTRL0_DEFAULT;
+ if (sps->flags & V4L2_HEVC_SPS_FLAG_SCALING_LIST_ENABLED) {
+ cedrus_h265_write_scaling_list(ctx, run);
+ reg = VE_DEC_H265_SCALING_LIST_CTRL0_FLAG_ENABLED;
+ } else {
+ reg = VE_DEC_H265_SCALING_LIST_CTRL0_DEFAULT;
+ }
cedrus_write(dev, VE_DEC_H265_SCALING_LIST_CTRL0, reg);

/* Neightbor information address. */
diff --git a/drivers/staging/media/sunxi/cedrus/cedrus_regs.h b/drivers/staging/media/sunxi/cedrus/cedrus_regs.h
index 7beb03d3bb39..0d9449fe2b28 100644
--- a/drivers/staging/media/sunxi/cedrus/cedrus_regs.h
+++ b/drivers/staging/media/sunxi/cedrus/cedrus_regs.h
@@ -492,6 +492,8 @@
#define VE_DEC_H265_ENTRY_POINT_OFFSET_ADDR (VE_ENGINE_DEC_H265 + 0x64)
#define VE_DEC_H265_TILE_START_CTB (VE_ENGINE_DEC_H265 + 0x68)
#define VE_DEC_H265_TILE_END_CTB (VE_ENGINE_DEC_H265 + 0x6c)
+#define VE_DEC_H265_SCALING_LIST_DC_COEF0 (VE_ENGINE_DEC_H265 + 0x78)
+#define VE_DEC_H265_SCALING_LIST_DC_COEF1 (VE_ENGINE_DEC_H265 + 0x7c)

#define VE_DEC_H265_LOW_ADDR (VE_ENGINE_DEC_H265 + 0x80)

--
2.24.0
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