linux-kernel - [PATCH v3,0/7] media: mediatek: vcodec: Add debugfs file for decode and encode

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Message-ID: <20230327055315.13936-1-yunfei.dong@mediatek.com>
Date:   Mon, 27 Mar 2023 13:53:08 +0800
From:   Yunfei Dong <yunfei.dong@...iatek.com>
To:     Yunfei Dong <yunfei.dong@...iatek.com>,
        Chen-Yu Tsai <wenst@...omium.org>,
        Nicolas Dufresne <nicolas@...fresne.ca>,
        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>
CC:     Matthias Brugger <matthias.bgg@...il.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 v3,0/7] media: mediatek: vcodec: Add debugfs file for decode and encode

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
---
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 (7):
  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/platform/mediatek/vcodec/Makefile   |   6 +
 .../mediatek/vcodec/mtk_vcodec_dbgfs.c        | 196 ++++++++++++++++++
 .../mediatek/vcodec/mtk_vcodec_dbgfs.h        |  72 +++++++
 .../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, 315 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

-- 
2.18.0