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media: mediatek: vcodec: Get each context resolution information

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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: Yunfei Dong <yunfei.dong@mediatek.com>
Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org>
This commit is contained in:
Yunfei Dong
2023-05-30 20:29:04 +08:00
committed by Mauro Carvalho Chehab
parent 5e488a4fd8
commit 07b7e505ff
2 changed files with 50 additions and 0 deletions
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42
drivers/media/platform/mediatek/vcodec/mtk_vcodec_dbgfs.c
View File

@@ -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)

8
drivers/media/platform/mediatek/vcodec/mtk_vcodec_dbgfs.h
View File

@@ -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