media: mediatek: vcodec: Set the supported h264 level for each platform

Set the maximum H264 codec level for each platform.
The various mediatek platforms support different levels for decoding, the
level of the codec limits among others the maximum resolution, bit rate
and frame rate for the decoder.

Signed-off-by: Yunfei Dong <yunfei.dong@mediatek.com>
Reviewed-by: Sebastian Fricke <sebastian.fricke@collabora.com>
Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Signed-off-by: Sebastian Fricke <sebastian.fricke@collabora.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>

diff --git a/drivers/media/platform/mediatek/vcodec/decoder/mtk_vcodec_dec_stateless.c b/drivers/media/platform/mediatek/vcodec/decoder/mtk_vcodec_dec_stateless.c
index e29c9c58f3dac929ac6ae92c438d9bb4202c89f1..7aaf0db13a76b29d51df15bba9f9d901529dbae6 100644 (file)
--- a/drivers/media/platform/mediatek/vcodec/decoder/mtk_vcodec_dec_stateless.c
+++ b/drivers/media/platform/mediatek/vcodec/decoder/mtk_vcodec_dec_stateless.c
@@ -56,6 +56,15 @@ static const struct mtk_stateless_control mtk_stateless_controls[] = {
                },
                .codec_type = V4L2_PIX_FMT_H264_SLICE,
        },
+       {
+               .cfg = {
+                       .id = V4L2_CID_MPEG_VIDEO_H264_LEVEL,
+                       .min = V4L2_MPEG_VIDEO_H264_LEVEL_1_0,
+                       .def = V4L2_MPEG_VIDEO_H264_LEVEL_4_1,
+                       .max = V4L2_MPEG_VIDEO_H264_LEVEL_4_2,
+               },
+               .codec_type = V4L2_PIX_FMT_H264_SLICE,
+       },
        {
                .cfg = {
                        .id = V4L2_CID_STATELESS_H264_DECODE_MODE,
@@ -519,6 +528,40 @@ static const struct v4l2_ctrl_ops mtk_vcodec_dec_ctrl_ops = {
        .s_ctrl = mtk_vdec_s_ctrl,
 };
 
+static void mtk_vcodec_dec_fill_h264_level(struct v4l2_ctrl_config *cfg,
+                                          struct mtk_vcodec_dec_ctx *ctx)
+{
+       switch (ctx->dev->chip_name) {
+       case MTK_VDEC_MT8192:
+       case MTK_VDEC_MT8188:
+               cfg->max = V4L2_MPEG_VIDEO_H264_LEVEL_5_2;
+               break;
+       case MTK_VDEC_MT8195:
+               cfg->max = V4L2_MPEG_VIDEO_H264_LEVEL_6_0;
+               break;
+       case MTK_VDEC_MT8183:
+       case MTK_VDEC_MT8186:
+               cfg->max = V4L2_MPEG_VIDEO_H264_LEVEL_4_2;
+               break;
+       default:
+               cfg->max = V4L2_MPEG_VIDEO_H264_LEVEL_4_1;
+               break;
+       };
+}
+
+static void mtk_vcodec_dec_reset_controls(struct v4l2_ctrl_config *cfg,
+                                         struct mtk_vcodec_dec_ctx *ctx)
+{
+       switch (cfg->id) {
+       case V4L2_CID_MPEG_VIDEO_H264_LEVEL:
+               mtk_vcodec_dec_fill_h264_level(cfg, ctx);
+               mtk_v4l2_vdec_dbg(3, ctx, "h264 supported level: %lld %lld", cfg->max, cfg->def);
+               break;
+       default:
+               break;
+       };
+}
+
 static int mtk_vcodec_dec_ctrls_setup(struct mtk_vcodec_dec_ctx *ctx)
 {
        unsigned int i;
@@ -532,6 +575,8 @@ static int mtk_vcodec_dec_ctrls_setup(struct mtk_vcodec_dec_ctx *ctx)
        for (i = 0; i < NUM_CTRLS; i++) {
                struct v4l2_ctrl_config cfg = mtk_stateless_controls[i].cfg;
                cfg.ops = &mtk_vcodec_dec_ctrl_ops;
+
+               mtk_vcodec_dec_reset_controls(&cfg, ctx);
                v4l2_ctrl_new_custom(&ctx->ctrl_hdl, &cfg, NULL);
                if (ctx->ctrl_hdl.error) {
                        mtk_v4l2_vdec_err(ctx, "Adding control %d failed %d", i,