[media] coda: add h.264 deblocking filter controls

This adds controls for the h.264 deblocking loop filter.

Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Signed-off-by: Kamil Debski <k.debski@samsung.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>

diff --git a/drivers/media/platform/coda.c b/drivers/media/platform/coda.c
index c4a6cab..e675cd7 100644 (file)
--- a/drivers/media/platform/coda.c
+++ b/drivers/media/platform/coda.c
@@ -161,6 +161,9 @@ struct coda_params {
        u8                      h264_inter_qp;
        u8                      h264_min_qp;
        u8                      h264_max_qp;
+       u8                      h264_deblk_enabled;
+       u8                      h264_deblk_alpha;
+       u8                      h264_deblk_beta;
        u8                      mpeg4_intra_qp;
        u8                      mpeg4_inter_qp;
        u8                      gop_size;
@@ -2326,7 +2329,17 @@ static int coda_start_encoding(struct coda_ctx *ctx)
                        coda_write(dev, CODA9_STD_H264, CODA_CMD_ENC_SEQ_COD_STD);
                else
                        coda_write(dev, CODA_STD_H264, CODA_CMD_ENC_SEQ_COD_STD);
-               coda_write(dev, 0, CODA_CMD_ENC_SEQ_264_PARA);
+               if (ctx->params.h264_deblk_enabled) {
+                       value = ((ctx->params.h264_deblk_alpha &
+                                 CODA_264PARAM_DEBLKFILTEROFFSETALPHA_MASK) <<
+                                CODA_264PARAM_DEBLKFILTEROFFSETALPHA_OFFSET) |
+                               ((ctx->params.h264_deblk_beta &
+                                 CODA_264PARAM_DEBLKFILTEROFFSETBETA_MASK) <<
+                                CODA_264PARAM_DEBLKFILTEROFFSETBETA_OFFSET);
+               } else {
+                       value = 1 << CODA_264PARAM_DISABLEDEBLK_OFFSET;
+               }
+               coda_write(dev, value, CODA_CMD_ENC_SEQ_264_PARA);
                break;
        default:
                v4l2_err(v4l2_dev,
@@ -2638,6 +2651,16 @@ static int coda_s_ctrl(struct v4l2_ctrl *ctrl)
        case V4L2_CID_MPEG_VIDEO_H264_MAX_QP:
                ctx->params.h264_max_qp = ctrl->val;
                break;
+       case V4L2_CID_MPEG_VIDEO_H264_LOOP_FILTER_ALPHA:
+               ctx->params.h264_deblk_alpha = ctrl->val;
+               break;
+       case V4L2_CID_MPEG_VIDEO_H264_LOOP_FILTER_BETA:
+               ctx->params.h264_deblk_beta = ctrl->val;
+               break;
+       case V4L2_CID_MPEG_VIDEO_H264_LOOP_FILTER_MODE:
+               ctx->params.h264_deblk_enabled = (ctrl->val ==
+                               V4L2_MPEG_VIDEO_H264_LOOP_FILTER_MODE_ENABLED);
+               break;
        case V4L2_CID_MPEG_VIDEO_MPEG4_I_FRAME_QP:
                ctx->params.mpeg4_intra_qp = ctrl->val;
                break;
@@ -2692,6 +2715,14 @@ static int coda_ctrls_setup(struct coda_ctx *ctx)
        v4l2_ctrl_new_std(&ctx->ctrls, &coda_ctrl_ops,
                V4L2_CID_MPEG_VIDEO_H264_MAX_QP, 0, 51, 1, 51);
        v4l2_ctrl_new_std(&ctx->ctrls, &coda_ctrl_ops,
+               V4L2_CID_MPEG_VIDEO_H264_LOOP_FILTER_ALPHA, 0, 15, 1, 0);
+       v4l2_ctrl_new_std(&ctx->ctrls, &coda_ctrl_ops,
+               V4L2_CID_MPEG_VIDEO_H264_LOOP_FILTER_BETA, 0, 15, 1, 0);
+       v4l2_ctrl_new_std_menu(&ctx->ctrls, &coda_ctrl_ops,
+               V4L2_CID_MPEG_VIDEO_H264_LOOP_FILTER_MODE,
+               V4L2_MPEG_VIDEO_H264_LOOP_FILTER_MODE_DISABLED, 0x0,
+               V4L2_MPEG_VIDEO_H264_LOOP_FILTER_MODE_ENABLED);
+       v4l2_ctrl_new_std(&ctx->ctrls, &coda_ctrl_ops,
                V4L2_CID_MPEG_VIDEO_MPEG4_I_FRAME_QP, 1, 31, 1, 2);
        v4l2_ctrl_new_std(&ctx->ctrls, &coda_ctrl_ops,
                V4L2_CID_MPEG_VIDEO_MPEG4_P_FRAME_QP, 1, 31, 1, 2);