Need to change kernel driver to open decode and encode debug log at current period,
it's very unreasonable. Adding debugfs common interface to support decode and encode,
using echo command to control debug log level and getting useful information for each
instance.
patch 1 add dbgfs common interface.
patch 2~5 support decode.
patch 6~7 support encode
patch 8 add help function
---
changed with v5:
- support "echo > vdec" to get help function.
changed with v4:
- rebase to the top of media stage header.
changed with v3:
- add help function for patch 8
- remove append '\0' and enlarge buffer size for patch 4
changed with v2:
- using pr_debug and dev_dbg instead of pr_info for patch 2.
- fix word fail: informatiaoin -> information for patch 3.
- used to print each instance format information for patch 5.
changed with v1:
- add new patch 4 and 5.
- using cmd 'cat vdec' to show debug information instead of pr_info directly.
---
Yunfei Dong (8):
media: mediatek: vcodec: Add debugfs interface to get debug
information
media: mediatek: vcodec: Add debug params to control different log
level
media: mediatek: vcodec: Add a debugfs file to get different useful
information
media: mediatek: vcodec: Get each context resolution information
media: mediatek: vcodec: Get each instance format type
media: mediatek: vcodec: Change dbgfs interface to support encode
media: mediatek: vcodec: Add encode to support dbgfs
media: mediatek: vcodec: Add dbgfs help function
.../media/platform/mediatek/vcodec/Makefile | 6 +
.../mediatek/vcodec/mtk_vcodec_dbgfs.c | 215 ++++++++++++++++++
.../mediatek/vcodec/mtk_vcodec_dbgfs.h | 74 ++++++
.../mediatek/vcodec/mtk_vcodec_dec_drv.c | 4 +
.../platform/mediatek/vcodec/mtk_vcodec_drv.h | 4 +
.../mediatek/vcodec/mtk_vcodec_enc_drv.c | 2 +
.../mediatek/vcodec/mtk_vcodec_util.c | 8 +
.../mediatek/vcodec/mtk_vcodec_util.h | 26 ++-
8 files changed, 336 insertions(+), 3 deletions(-)
create mode 100644 drivers/media/platform/mediatek/vcodec/mtk_vcodec_dbgfs.c
create mode 100644 drivers/media/platform/mediatek/vcodec/mtk_vcodec_dbgfs.h
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2.18.0