media: rkvdec: Move H264 SPS validation in rkvdec-h264

No functional change, this moves H264 specific validation into the H264
specific code. This is in preparation of improving this validation and
reusing it when VIDIOC_STREAMON is called.

Signed-off-by: Nicolas Dufresne <[email protected]>
Reviewed-by: Ezequiel Garcia <[email protected]>
Signed-off-by: Hans Verkuil <[email protected]>
Signed-off-by: Mauro Carvalho Chehab <[email protected]>

Author: ndufresne

drivers/staging/media/rkvdec/rkvdec-h264.c

@@ -1137,9 +1137,32 @@ static int rkvdec_h264_run(struct rkvdec_ctx *ctx)
 	return 0;
 }
 
+static int rkvdec_h264_try_ctrl(struct rkvdec_ctx *ctx, struct v4l2_ctrl *ctrl)
+{
+	if (ctrl->id == V4L2_CID_STATELESS_H264_SPS) {
+		const struct v4l2_ctrl_h264_sps *sps = ctrl->p_new.p_h264_sps;
+		/*
+		 * TODO: The hardware supports 10-bit and 4:2:2 profiles,
+		 * but it's currently broken in the driver.
+		 * Reject them for now, until it's fixed.
+		 */
+		if (sps->chroma_format_idc > 1)
+			/* Only 4:0:0 and 4:2:0 are supported */
+			return -EINVAL;
+		if (sps->bit_depth_luma_minus8 != sps->bit_depth_chroma_minus8)
+			/* Luma and chroma bit depth mismatch */
+			return -EINVAL;
+		if (sps->bit_depth_luma_minus8 != 0)
+			/* Only 8-bit is supported */
+			return -EINVAL;
+	}
+	return 0;
+}
+
 const struct rkvdec_coded_fmt_ops rkvdec_h264_fmt_ops = {
 	.adjust_fmt = rkvdec_h264_adjust_fmt,
 	.start = rkvdec_h264_start,
 	.stop = rkvdec_h264_stop,
 	.run = rkvdec_h264_run,
+	.try_ctrl = rkvdec_h264_try_ctrl,
 };

drivers/staging/media/rkvdec/rkvdec.c

@@ -29,23 +29,12 @@
 
 static int rkvdec_try_ctrl(struct v4l2_ctrl *ctrl)
 {
-	if (ctrl->id == V4L2_CID_STATELESS_H264_SPS) {
-		const struct v4l2_ctrl_h264_sps *sps = ctrl->p_new.p_h264_sps;
-		/*
-		 * TODO: The hardware supports 10-bit and 4:2:2 profiles,
-		 * but it's currently broken in the driver.
-		 * Reject them for now, until it's fixed.
-		 */
-		if (sps->chroma_format_idc > 1)
-			/* Only 4:0:0 and 4:2:0 are supported */
-			return -EINVAL;
-		if (sps->bit_depth_luma_minus8 != sps->bit_depth_chroma_minus8)
-			/* Luma and chroma bit depth mismatch */
-			return -EINVAL;
-		if (sps->bit_depth_luma_minus8 != 0)
-			/* Only 8-bit is supported */
-			return -EINVAL;
-	}
+	struct rkvdec_ctx *ctx = container_of(ctrl->handler, struct rkvdec_ctx, ctrl_hdl);
+	const struct rkvdec_coded_fmt_desc *desc = ctx->coded_fmt_desc;
+
+	if (desc->ops->try_ctrl)
+		return desc->ops->try_ctrl(ctx, ctrl);
+
 	return 0;
 }
 

drivers/staging/media/rkvdec/rkvdec.h

@@ -72,6 +72,7 @@ struct rkvdec_coded_fmt_ops {
 	void (*done)(struct rkvdec_ctx *ctx, struct vb2_v4l2_buffer *src_buf,
 		     struct vb2_v4l2_buffer *dst_buf,
 		     enum vb2_buffer_state result);
+	int (*try_ctrl)(struct rkvdec_ctx *ctx, struct v4l2_ctrl *ctrl);
 };
 
 struct rkvdec_coded_fmt_desc {