linux-kernel - [PATCH v2,3/7] media: mediatek: vcodec: Set the supported h265 level for each platform

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Date:   Mon, 23 Oct 2023 11:06:36 +0800
From:   Yunfei Dong <yunfei.dong@...iatek.com>
To:     Sebastian Fricke <sebastian.fricke@...labora.com>,
        Nícolas F . R . A . Prado 
        <nfraprado@...labora.com>,
        Nicolas Dufresne <nicolas.dufresne@...labora.com>,
        Hans Verkuil <hverkuil-cisco@...all.nl>,
        AngeloGioacchino Del Regno 
        <angelogioacchino.delregno@...labora.com>,
        Benjamin Gaignard <benjamin.gaignard@...labora.com>,
        Nathan Hebert <nhebert@...omium.org>
CC:     Chen-Yu Tsai <wenst@...omium.org>,
        Hsin-Yi Wang <hsinyi@...omium.org>,
        Fritz Koenig <frkoenig@...omium.org>,
        Daniel Vetter <daniel@...ll.ch>,
        "Steve Cho" <stevecho@...omium.org>,
        Yunfei Dong <yunfei.dong@...iatek.com>,
        <linux-media@...r.kernel.org>, <devicetree@...r.kernel.org>,
        <linux-kernel@...r.kernel.org>,
        <linux-arm-kernel@...ts.infradead.org>,
        <linux-mediatek@...ts.infradead.org>,
        <Project_Global_Chrome_Upstream_Group@...iatek.com>
Subject: [PATCH v2,3/7] media: mediatek: vcodec: Set the supported h265 level for each platform

Set the maximum H265 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@...iatek.com>
Reviewed-by: Sebastian Fricke <sebastian.fricke@...labora.com>
---
 .../vcodec/decoder/mtk_vcodec_dec_stateless.c | 30 +++++++++++++++++++
 1 file changed, 30 insertions(+)

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 7aaf0db13a76..f68518ba57c5 100644
--- a/drivers/media/platform/mediatek/vcodec/decoder/mtk_vcodec_dec_stateless.c
+++ b/drivers/media/platform/mediatek/vcodec/decoder/mtk_vcodec_dec_stateless.c
@@ -147,6 +147,16 @@ static const struct mtk_stateless_control mtk_stateless_controls[] = {
 		},
 		.codec_type = V4L2_PIX_FMT_HEVC_SLICE,
 	},
+	{
+		.cfg = {
+			.id = V4L2_CID_MPEG_VIDEO_HEVC_LEVEL,
+			.min = V4L2_MPEG_VIDEO_HEVC_LEVEL_1,
+			.def = V4L2_MPEG_VIDEO_HEVC_LEVEL_4,
+			.max = V4L2_MPEG_VIDEO_HEVC_LEVEL_4_1,
+		},
+		.codec_type = V4L2_PIX_FMT_HEVC_SLICE,
+	},
+
 	{
 		.cfg = {
 			.id = V4L2_CID_STATELESS_HEVC_DECODE_MODE,
@@ -549,6 +559,22 @@ static void mtk_vcodec_dec_fill_h264_level(struct v4l2_ctrl_config *cfg,
 	};
 }
 
+static void mtk_vcodec_dec_fill_h265_level(struct v4l2_ctrl_config *cfg,
+					   struct mtk_vcodec_dec_ctx *ctx)
+{
+	switch (ctx->dev->chip_name) {
+	case MTK_VDEC_MT8188:
+		cfg->max = V4L2_MPEG_VIDEO_HEVC_LEVEL_5_1;
+		break;
+	case MTK_VDEC_MT8195:
+		cfg->max = V4L2_MPEG_VIDEO_HEVC_LEVEL_5_2;
+		break;
+	default:
+		cfg->max = V4L2_MPEG_VIDEO_HEVC_LEVEL_4;
+		break;
+	};
+}
+
 static void mtk_vcodec_dec_reset_controls(struct v4l2_ctrl_config *cfg,
 					  struct mtk_vcodec_dec_ctx *ctx)
 {
@@ -557,6 +583,10 @@ static void mtk_vcodec_dec_reset_controls(struct v4l2_ctrl_config *cfg,
 		mtk_vcodec_dec_fill_h264_level(cfg, ctx);
 		mtk_v4l2_vdec_dbg(3, ctx, "h264 supported level: %lld %lld", cfg->max, cfg->def);
 		break;
+	case V4L2_CID_MPEG_VIDEO_HEVC_LEVEL:
+		mtk_vcodec_dec_fill_h265_level(cfg, ctx);
+		mtk_v4l2_vdec_dbg(3, ctx, "h265 supported level: %lld %lld", cfg->max, cfg->def);
+		break;
 	default:
 		break;
 	};
-- 
2.18.0