[media] media: coda: add byte size slice limit control

Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Tested-by: Javier Martin <javier.martin@vista-silicon.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

diff --git a/drivers/media/platform/coda.c b/drivers/media/platform/coda.c
index 23985b3..bf8cb0a 100644 (file)
--- a/drivers/media/platform/coda.c
+++ b/drivers/media/platform/coda.c
@@ -151,6 +151,7 @@ struct coda_params {
        enum v4l2_mpeg_video_multi_slice_mode slice_mode;
        u32                     framerate;
        u16                     bitrate;
+       u32                     slice_max_bits;
        u32                     slice_max_mb;
 };
 
@@ -1061,12 +1062,23 @@ static int coda_start_streaming(struct vb2_queue *q, unsigned int count)
                return -EINVAL;
        }
 
-       value  = (ctx->params.slice_max_mb & CODA_SLICING_SIZE_MASK) << CODA_SLICING_SIZE_OFFSET;
-       value |= (1 & CODA_SLICING_UNIT_MASK) << CODA_SLICING_UNIT_OFFSET;
-       if (ctx->params.slice_mode == V4L2_MPEG_VIDEO_MULTI_SICE_MODE_MAX_MB)
+       switch (ctx->params.slice_mode) {
+       case V4L2_MPEG_VIDEO_MULTI_SLICE_MODE_SINGLE:
+               value = 0;
+               break;
+       case V4L2_MPEG_VIDEO_MULTI_SICE_MODE_MAX_MB:
+               value  = (ctx->params.slice_max_mb & CODA_SLICING_SIZE_MASK) << CODA_SLICING_SIZE_OFFSET;
+               value |= (1 & CODA_SLICING_UNIT_MASK) << CODA_SLICING_UNIT_OFFSET;
+               value |=  1 & CODA_SLICING_MODE_MASK;
+               break;
+       case V4L2_MPEG_VIDEO_MULTI_SICE_MODE_MAX_BYTES:
+               value  = (ctx->params.slice_max_bits & CODA_SLICING_SIZE_MASK) << CODA_SLICING_SIZE_OFFSET;
+               value |= (0 & CODA_SLICING_UNIT_MASK) << CODA_SLICING_UNIT_OFFSET;
                value |=  1 & CODA_SLICING_MODE_MASK;
+               break;
+       }
        coda_write(dev, value, CODA_CMD_ENC_SEQ_SLICE_MODE);
-       value  =  ctx->params.gop_size & CODA_GOP_SIZE_MASK;
+       value = ctx->params.gop_size & CODA_GOP_SIZE_MASK;
        coda_write(dev, value, CODA_CMD_ENC_SEQ_GOP_SIZE);
 
        if (ctx->params.bitrate) {
@@ -1313,6 +1325,9 @@ static int coda_s_ctrl(struct v4l2_ctrl *ctrl)
        case V4L2_CID_MPEG_VIDEO_MULTI_SLICE_MAX_MB:
                ctx->params.slice_max_mb = ctrl->val;
                break;
+       case V4L2_CID_MPEG_VIDEO_MULTI_SLICE_MAX_BYTES:
+               ctx->params.slice_max_bits = ctrl->val * 8;
+               break;
        case V4L2_CID_MPEG_VIDEO_HEADER_MODE:
                break;
        default:
@@ -1351,10 +1366,12 @@ static int coda_ctrls_setup(struct coda_ctx *ctx)
                V4L2_CID_MPEG_VIDEO_MPEG4_P_FRAME_QP, 1, 31, 1, 2);
        v4l2_ctrl_new_std_menu(&ctx->ctrls, &coda_ctrl_ops,
                V4L2_CID_MPEG_VIDEO_MULTI_SLICE_MODE,
-               V4L2_MPEG_VIDEO_MULTI_SICE_MODE_MAX_MB, 0,
-               V4L2_MPEG_VIDEO_MULTI_SICE_MODE_MAX_MB);
+               V4L2_MPEG_VIDEO_MULTI_SICE_MODE_MAX_BYTES, 0x0,
+               V4L2_MPEG_VIDEO_MULTI_SLICE_MODE_SINGLE);
        v4l2_ctrl_new_std(&ctx->ctrls, &coda_ctrl_ops,
                V4L2_CID_MPEG_VIDEO_MULTI_SLICE_MAX_MB, 1, 0x3fffffff, 1, 1);
+       v4l2_ctrl_new_std(&ctx->ctrls, &coda_ctrl_ops,
+               V4L2_CID_MPEG_VIDEO_MULTI_SLICE_MAX_BYTES, 1, 0x3fffffff, 1, 500);
        v4l2_ctrl_new_std_menu(&ctx->ctrls, &coda_ctrl_ops,
                V4L2_CID_MPEG_VIDEO_HEADER_MODE,
                V4L2_MPEG_VIDEO_HEADER_MODE_JOINED_WITH_1ST_FRAME,