@@ -44,3 +44,9 @@ endif
ifneq ($(CONFIG_VIDEO_MEDIATEK_VCODEC_SCP),)
mtk-vcodec-common-y += mtk_vcodec_fw_scp.o
endif
+
+ifneq ($(CONFIG_DEBUG_FS),)
+obj-$(CONFIG_VIDEO_MEDIATEK_VCODEC) += mtk-vcodec-dbgfs.o
+
+mtk-vcodec-dbgfs-y := mtk_vcodec_dbgfs.o
+endif
\ No newline at end of file
new file mode 100644
@@ -0,0 +1,32 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Copyright (c) 2023 MediaTek Inc.
+ * Author: Yunfei Dong <yunfei.dong@mediatek.com>
+ */
+
+#include <linux/debugfs.h>
+
+#include "mtk_vcodec_dbgfs.h"
+#include "mtk_vcodec_drv.h"
+#include "mtk_vcodec_util.h"
+
+void mtk_vcodec_dbgfs_init(struct mtk_vcodec_dev *vcodec_dev)
+{
+ struct dentry *vcodec_root;
+
+ vcodec_dev->dbgfs.vcodec_root = debugfs_create_dir("vcodec-dec", NULL);
+ if (IS_ERR(vcodec_dev->dbgfs.vcodec_root))
+ pr_info("create dir err:%d\n", IS_ERR(vcodec_dev->dbgfs.vcodec_root));
+
+ vcodec_root = vcodec_dev->dbgfs.vcodec_root;
+}
+EXPORT_SYMBOL_GPL(mtk_vcodec_dbgfs_init);
+
+void mtk_vcodec_dbgfs_deinit(struct mtk_vcodec_dev *vcodec_dev)
+{
+ debugfs_remove_recursive(vcodec_dev->dbgfs.vcodec_root);
+}
+EXPORT_SYMBOL_GPL(mtk_vcodec_dbgfs_deinit);
+
+MODULE_LICENSE("GPL v2");
+MODULE_DESCRIPTION("Mediatek video codec driver");
new file mode 100644
@@ -0,0 +1,28 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * Copyright (c) 2023 MediaTek Inc.
+ * Author: Yunfei Dong <yunfei.dong@mediatek.com>
+ */
+
+#ifndef __MTK_VCODEC_DBGFS_H__
+#define __MTK_VCODEC_DBGFS_H__
+
+struct mtk_vcodec_dev;
+
+struct mtk_vcodec_dbgfs {
+ struct dentry *vcodec_root;
+};
+
+#if defined(CONFIG_DEBUG_FS)
+void mtk_vcodec_dbgfs_init(struct mtk_vcodec_dev *vcodec_dev);
+void mtk_vcodec_dbgfs_deinit(struct mtk_vcodec_dev *vcodec_dev);
+#else
+static inline void mtk_vcodec_dbgfs_init(struct mtk_vcodec_dev *vcodec_dev)
+{
+}
+
+static inline void mtk_vcodec_dbgfs_deinit(struct mtk_vcodec_dev *vcodec_dev)
+{
+}
+#endif
+#endif
@@ -431,6 +431,7 @@ static int mtk_vcodec_probe(struct platform_device *pdev)
mtk_v4l2_debug(0, "media registered as /dev/media%d", vfd_dec->minor);
}
+ mtk_vcodec_dbgfs_init(dev);
mtk_v4l2_debug(0, "decoder registered as /dev/video%d", vfd_dec->minor);
return 0;
@@ -505,6 +506,7 @@ static int mtk_vcodec_dec_remove(struct platform_device *pdev)
if (dev->vfd_dec)
video_unregister_device(dev->vfd_dec);
+ mtk_vcodec_dbgfs_deinit(dev);
v4l2_device_unregister(&dev->v4l2_dev);
if (!dev->vdec_pdata->is_subdev_supported)
pm_runtime_disable(dev->pm.dev);
@@ -16,6 +16,7 @@
#include <media/v4l2-mem2mem.h>
#include <media/videobuf2-core.h>
+#include "mtk_vcodec_dbgfs.h"
#include "mtk_vcodec_util.h"
#include "vdec_msg_queue.h"
@@ -470,6 +471,7 @@ struct mtk_vcodec_enc_pdata {
* @dec_active_cnt: used to mark whether need to record register value
* @vdec_racing_info: record register value
* @dec_racing_info_mutex: mutex lock used for inner racing mode
+ * @dbgfs: debug log related information
*/
struct mtk_vcodec_dev {
struct v4l2_device v4l2_dev;
@@ -520,6 +522,8 @@ struct mtk_vcodec_dev {
u32 vdec_racing_info[132];
/* Protects access to vdec_racing_info data */
struct mutex dec_racing_info_mutex;
+
+ struct mtk_vcodec_dbgfs dbgfs;
};
static inline struct mtk_vcodec_ctx *fh_to_ctx(struct v4l2_fh *fh)
This will be useful when debugging specific issues related to kernel in running status. Signed-off-by: Yunfei Dong <yunfei.dong@mediatek.com> --- .../media/platform/mediatek/vcodec/Makefile | 6 ++++ .../mediatek/vcodec/mtk_vcodec_dbgfs.c | 32 +++++++++++++++++++ .../mediatek/vcodec/mtk_vcodec_dbgfs.h | 28 ++++++++++++++++ .../mediatek/vcodec/mtk_vcodec_dec_drv.c | 2 ++ .../platform/mediatek/vcodec/mtk_vcodec_drv.h | 4 +++ 5 files changed, 72 insertions(+) create mode 100644 drivers/media/platform/mediatek/vcodec/mtk_vcodec_dbgfs.c create mode 100644 drivers/media/platform/mediatek/vcodec/mtk_vcodec_dbgfs.h