Commit 07b7e505 authored by Yunfei Dong's avatar Yunfei Dong Committed by Mauro Carvalho Chehab
Browse files

media: mediatek: vcodec: Get each context resolution information 



Will store the string to temp buffer like "echo -picinfo > vdec" when
user want to get needed information.

Then getting debug information using command 'cat vdec' calling
mtk_vdec_dbgfs_read to analysis the temp buffer.

Signed-off-by: default avatarYunfei Dong <yunfei.dong@mediatek.com>
Reviewed-by: default avatarAngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Signed-off-by: default avatarHans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: default avatarMauro Carvalho Chehab <mchehab@kernel.org>
parent 5e488a4f

drivers/media/platform/mediatek/vcodec/mtk_vcodec_dbgfs.c

+42 −0
Original line number Diff line number Diff line
@@ -26,9 +26,51 @@ static ssize_t mtk_vdec_dbgfs_write(struct file *filp, const char __user *ubuf, 
	return dbgfs->buf_size;

}



static ssize_t mtk_vdec_dbgfs_read(struct file *filp, char __user *ubuf,

				   size_t count, loff_t *ppos)

{

	struct mtk_vcodec_dev *vcodec_dev = filp->private_data;

	struct mtk_vcodec_dbgfs *dbgfs = &vcodec_dev->dbgfs;

	struct mtk_vcodec_dbgfs_inst *dbgfs_inst;

	struct mtk_vcodec_ctx *ctx;

	int total_len = 200 * (dbgfs->inst_count == 0 ? 1 : dbgfs->inst_count);

	int used_len = 0, curr_len, ret;

	bool dbgfs_index[MTK_VDEC_DBGFS_MAX] = {0};

	char *buf = kmalloc(total_len, GFP_KERNEL);



	if (!buf)

		return -ENOMEM;



	if (strstr(dbgfs->dbgfs_buf, "-picinfo"))

		dbgfs_index[MTK_VDEC_DBGFS_PICINFO] = true;



	mutex_lock(&dbgfs->dbgfs_lock);

	list_for_each_entry(dbgfs_inst, &dbgfs->dbgfs_head, node) {

		ctx = dbgfs_inst->vcodec_ctx;



		curr_len = snprintf(buf + used_len, total_len - used_len,

				    "inst[%d]:\n ", ctx->id);

		used_len += curr_len;



		if (dbgfs_index[MTK_VDEC_DBGFS_PICINFO]) {

			curr_len = snprintf(buf + used_len, total_len - used_len,

					    "\treal(%dx%d)=>align(%dx%d)\n",

					    ctx->picinfo.pic_w, ctx->picinfo.pic_h,

					    ctx->picinfo.buf_w, ctx->picinfo.buf_h);

			used_len += curr_len;

		}

	}

	mutex_unlock(&dbgfs->dbgfs_lock);



	ret = simple_read_from_buffer(ubuf, count, ppos, buf, used_len);

	kfree(buf);

	return ret;

}



static const struct file_operations vdec_fops = {

	.open = simple_open,

	.write = mtk_vdec_dbgfs_write,

	.read = mtk_vdec_dbgfs_read,

};



void mtk_vcodec_dbgfs_create(struct mtk_vcodec_ctx *ctx)

drivers/media/platform/mediatek/vcodec/mtk_vcodec_dbgfs.h

+8 −0
Original line number Diff line number Diff line
@@ -10,6 +10,14 @@ 
struct mtk_vcodec_dev;

struct mtk_vcodec_ctx;



/*

 * enum mtk_vdec_dbgfs_log_index  - used to get different debug information

 */

enum mtk_vdec_dbgfs_log_index {

	MTK_VDEC_DBGFS_PICINFO,

	MTK_VDEC_DBGFS_MAX,

};



/**

 * struct mtk_vcodec_dbgfs_inst  - debugfs information for each inst

 * @node:       list node for each inst