linux-kernel - [PATCH v5,5/8] media: mediatek: vcodec: Get each instance format type

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Date:   Thu, 25 May 2023 10:12:16 +0800
From:   Yunfei Dong <yunfei.dong@...iatek.com>
To:     Chen-Yu Tsai <wenst@...omium.org>,
        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>,
        Nícolas F . R . A . Prado 
        <nfraprado@...labora.com>, Nathan Hebert <nhebert@...omium.org>
CC:     Yunfei Dong <yunfei.dong@...iatek.com>,
        Hsin-Yi Wang <hsinyi@...omium.org>,
        Fritz Koenig <frkoenig@...omium.org>,
        Daniel Vetter <daniel@...ll.ch>,
        Steve Cho <stevecho@...omium.org>,
        <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 v5,5/8] media: mediatek: vcodec: Get each instance format type

Adding echo command to get capture and output queue format
type of each instance:"echo '-format' > vdec", not current
hardware supported.

Signed-off-by: Yunfei Dong <yunfei.dong@...iatek.com>
---
 .../mediatek/vcodec/mtk_vcodec_dbgfs.c        | 48 +++++++++++++++++++
 .../mediatek/vcodec/mtk_vcodec_dbgfs.h        |  1 +
 2 files changed, 49 insertions(+)

diff --git a/drivers/media/platform/mediatek/vcodec/mtk_vcodec_dbgfs.c b/drivers/media/platform/mediatek/vcodec/mtk_vcodec_dbgfs.c
index a47005e0bc16..b2b69c3400d4 100644
--- a/drivers/media/platform/mediatek/vcodec/mtk_vcodec_dbgfs.c
+++ b/drivers/media/platform/mediatek/vcodec/mtk_vcodec_dbgfs.c
@@ -10,6 +10,48 @@
 #include "mtk_vcodec_drv.h"
 #include "mtk_vcodec_util.h"
 
+static void mtk_vdec_dbgfs_get_format_type(struct mtk_vcodec_ctx *ctx, char *buf,
+					   int *used, int total)
+{
+	int curr_len;
+
+	switch (ctx->current_codec) {
+	case V4L2_PIX_FMT_H264_SLICE:
+		curr_len = snprintf(buf + *used, total - *used,
+				    "\toutput format: h264 slice\n");
+		break;
+	case V4L2_PIX_FMT_VP8_FRAME:
+		curr_len = snprintf(buf + *used, total - *used,
+				    "\toutput format: vp8 slice\n");
+		break;
+	case V4L2_PIX_FMT_VP9_FRAME:
+		curr_len = snprintf(buf + *used, total - *used,
+				    "\toutput format: vp9 slice\n");
+		break;
+	default:
+		curr_len = snprintf(buf + *used, total - *used,
+				    "\tunsupported output format: 0x%x\n",
+				    ctx->current_codec);
+	}
+	*used += curr_len;
+
+	switch (ctx->capture_fourcc) {
+	case V4L2_PIX_FMT_MM21:
+		curr_len = snprintf(buf + *used, total - *used,
+				    "\tcapture format: MM21\n");
+		break;
+	case V4L2_PIX_FMT_MT21C:
+		curr_len = snprintf(buf + *used, total - *used,
+				    "\tcapture format: MT21C\n");
+		break;
+	default:
+		curr_len = snprintf(buf + *used, total - *used,
+				    "\tunsupported capture format: 0x%x\n",
+				    ctx->capture_fourcc);
+	}
+	*used += curr_len;
+}
+
 static ssize_t mtk_vdec_dbgfs_write(struct file *filp, const char __user *ubuf,
 				    size_t count, loff_t *ppos)
 {
@@ -45,6 +87,9 @@ static ssize_t mtk_vdec_dbgfs_read(struct file *filp, char __user *ubuf,
 	if (strstr(dbgfs->dbgfs_buf, "-picinfo"))
 		dbgfs_index[MTK_VDEC_DBGFS_PICINFO] = true;
 
+	if (strstr(dbgfs->dbgfs_buf, "-format"))
+		dbgfs_index[MTK_VDEC_DBGFS_FORMAT] = true;
+
 	mutex_lock(&dbgfs->dbgfs_lock);
 	list_for_each_entry(dbgfs_inst, &dbgfs->dbgfs_head, node) {
 		ctx = dbgfs_inst->vcodec_ctx;
@@ -60,6 +105,9 @@ static ssize_t mtk_vdec_dbgfs_read(struct file *filp, char __user *ubuf,
 					    ctx->picinfo.buf_w, ctx->picinfo.buf_h);
 			used_len += curr_len;
 		}
+
+		if (dbgfs_index[MTK_VDEC_DBGFS_FORMAT])
+			mtk_vdec_dbgfs_get_format_type(ctx, buf, &used_len, total_len);
 	}
 	mutex_unlock(&dbgfs->dbgfs_lock);
 
diff --git a/drivers/media/platform/mediatek/vcodec/mtk_vcodec_dbgfs.h b/drivers/media/platform/mediatek/vcodec/mtk_vcodec_dbgfs.h
index da61b2dffe29..b0bdb84a46df 100644
--- a/drivers/media/platform/mediatek/vcodec/mtk_vcodec_dbgfs.h
+++ b/drivers/media/platform/mediatek/vcodec/mtk_vcodec_dbgfs.h
@@ -15,6 +15,7 @@ struct mtk_vcodec_ctx;
  */
 enum mtk_vdec_dbgfs_log_index {
 	MTK_VDEC_DBGFS_PICINFO,
+	MTK_VDEC_DBGFS_FORMAT,
 	MTK_VDEC_DBGFS_MAX,
 };
 
-- 
2.25.1