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Date: Mon, 31 Oct 2022 23:52:52 +0530
From: Prasanth Mantena <p-mantena@...com>
To: Sebastian Fricke <sebastian.fricke@...labora.com>
CC: <linux-media@...r.kernel.org>, <kernel@...labora.com>,
<nas.chung@...psnmedia.com>, <hverkuil@...all.nl>,
<ezequiel@...guardiasur.com.ar>, <linux-kernel@...r.kernel.org>,
<nicolas.dufresne@...labora.com>, <p.zabel@...gutronix.de>,
<dafna@...tmail.com>
Subject: Re: [PATCH v10 0/7] Wave5 codec driver
On 02:04-20221022, Sebastian Fricke wrote:
> The Wave5 codec driver is a stateful encoder/decoder.
> It is found on the J721S2 SoC, JH7100 SoC, ssd202d SoC. Etc.
> But current test report is based on J721S2 SoC and pre-silicon FPGA.
>
> The driver currently supports V4L2_PIX_FMT_HEVC, V4L2_PIX_FMT_H264.
>
> This driver has so far been tested on J721S2 EVM board and pre-silicon
> FPGA.
>
> Testing on J721S2 EVM board shows it working fine both decoder and
> encoder.
> The driver is successfully working with gstreamer v4l2 good-plugin
> without any modification.
>
> # v4l2-compliance -d0
> Total for wave5-dec device /dev/video0: 44, Succeeded: 44, Failed: 0, Warnings: 0
>
> # v4l2-compliance -d1
> Buffer ioctls:
> fail: ../../../v4l-utils-1.18.1/utils/v4l2-compliance/v4l2-test-buffers.cpp(610): q.reqbufs(node, 1)
> test VIDIOC_REQBUFS/CREATE_BUFS/QUERYBUF: FAIL
> fail: ../../../v4l-utils-1.18.1/utils/v4l2-compliance/v4l2-test-buffers.cpp(753): q.reqbufs(node, 2)
> test VIDIOC_EXPBUF: FAIL
> test Requests: OK (Not Supported)
>
> Total for wave5-enc device /dev/video1: 44, Succeeded: 42, Failed: 2, Warnings: 2
>
> changes since v9:
>
> * Move from staging to the media directory
> * Move coda driver to sub-directory
>
> * Fixes:
> * Use platform_get_irq instead of platform_get_resource to fetch the IRQ
>
> * General cleanups:
> * Add missing error messages to error conditions
> * Improve messages/variable names/comments, align parameter names across the driver
> * Use macros instead of magic numbers in multiple occassions
> * Reduce code duplication in multiple places
> * Fix whitespace, newline and tab alignment issues
> * Remove unused struct fields & commented out code
> * Convert signed integers to unsigned if signed is not necessary
> * Convert int/unsigned int to s32/u32, when the variable is assigned to the
> return of a register read or provided as a parameter for a register write
> (and vice versa)
> * Fix incorrect bitwise operators where logical operators are appropriate
> * Multiple smaller changes
>
> * Generalization:
> * Add new helper file providing generalized routines for vpu-dec & vpu-enc
> * Generalize luma & chroma table size calculation and stride calculation
>
> * Resource cleanup and error handling:
> * Add error handling to all calls with ignored return codes
> * Handle DMA resource cleanup properly
> * Fix insufficient instance cleanup while opening dec/enc
>
> changes since v8:
>
> * add 'wave5' to DEV_NAME
> * update to support Multi-stream
> * update to support loop test/dynamic resolution change
> * remove unnecessary memset, g_volatile, old version option
>
> changes since v7:
>
> * update v4l2-compliance test report
> * fix build error on linux-kernel 5.18.0-rc4
>
> changes since v6:
>
> * update TODO file
> * get sram info from device tree
>
> changes since v5:
>
> * support NV12/NV21 pixelformat for encoder and decoder
> * handle adnormal exit and EOS
>
> changes since v4:
>
> * refactor functions in wave5-hw and fix bug reported by Daniel Palmer
> * rename functions and variables to better names
> * change variable types such as replacing s32 with u32 and int with bool
> * as appropriate
>
> changes since v3:
>
> * Fixing all issues commented by Dan Carpenter
> * Change file names to have wave5- prefix
> * In wave5_vpu_probe, enable the clocks before reading registers, as
> * commented from Daniel Palmer
> * Add more to the TODO list,
>
> changes since v2:
>
> Main fixes includes:
> * change the yaml and dirver code to support up to 4 clks (instead of
> * one)
> * fix Kconfig format
> * remove unneeded cast,
> * change var types
> * change var names, func names
> * checkpatch fixes
>
> changes since v1:
>
> Fix changes due to comments from Ezequiel and Dan Carpenter. Main fixes
> inclueds:
> * move all files to one dir 'wave5'
> * replace private error codes with standard error codes
> * fix extra spaces
> * various checkpatch fixes
> * replace private 'DPRINTK' macro with standard 'dev_err/dbg ..'
> * fix error handling
> * add more possible fixes to the TODO file
>
We see issues with the patchset. The decoder output contains garbage
data randomly in the image. This is seen more for higher
resolutions(>=1080p).
The gstreamer pipeline for encoder fails with negotiation error as
stated below.
"vdec 4210000.video-codec: Invalid intra refresh mode: 0 (valid: 1-4)"
> Dafna Hirschfeld (1):
> media: chips-media: wave5: Add the vdi layer
>
> Nas Chung (3):
> media: chips-media: wave5: Add vpuapi layer
> media: chips-media: wave5: Add the v4l2 layer
> media: chips-media: wave5: Add TODO file
>
> Robert Beckett (2):
> dt-bindings: media: wave5: add yaml devicetree bindings
> media: chips-media: wave5: Add wave5 driver to maintainers file
>
> Sebastian Fricke (1):
> media: platform: chips-media: Move Coda to separate folder
>
> .../devicetree/bindings/media/wave5.yml | 73 +
> MAINTAINERS | 11 +-
> drivers/media/platform/chips-media/Kconfig | 18 +-
> drivers/media/platform/chips-media/Makefile | 6 +-
> .../media/platform/chips-media/coda/Kconfig | 18 +
> .../media/platform/chips-media/coda/Makefile | 6 +
> .../chips-media/{ => coda}/coda-bit.c | 0
> .../chips-media/{ => coda}/coda-common.c | 0
> .../chips-media/{ => coda}/coda-gdi.c | 0
> .../chips-media/{ => coda}/coda-h264.c | 0
> .../chips-media/{ => coda}/coda-jpeg.c | 0
> .../chips-media/{ => coda}/coda-mpeg2.c | 0
> .../chips-media/{ => coda}/coda-mpeg4.c | 0
> .../platform/chips-media/{ => coda}/coda.h | 0
> .../chips-media/{ => coda}/coda_regs.h | 0
> .../chips-media/{ => coda}/imx-vdoa.c | 0
> .../chips-media/{ => coda}/imx-vdoa.h | 0
> .../platform/chips-media/{ => coda}/trace.h | 0
> .../media/platform/chips-media/wave5/Kconfig | 12 +
> .../media/platform/chips-media/wave5/Makefile | 10 +
> drivers/media/platform/chips-media/wave5/TODO | 25 +
> .../platform/chips-media/wave5/wave5-helper.c | 175 +
> .../platform/chips-media/wave5/wave5-helper.h | 28 +
> .../platform/chips-media/wave5/wave5-hw.c | 3459 +++++++++++++++++
> .../chips-media/wave5/wave5-regdefine.h | 654 ++++
> .../platform/chips-media/wave5/wave5-vdi.c | 261 ++
> .../platform/chips-media/wave5/wave5-vdi.h | 67 +
> .../chips-media/wave5/wave5-vpu-dec.c | 1399 +++++++
> .../chips-media/wave5/wave5-vpu-enc.c | 1454 +++++++
> .../platform/chips-media/wave5/wave5-vpu.c | 362 ++
io.h is needed for devm_ioremap to work.
> .../platform/chips-media/wave5/wave5-vpu.h | 72 +
> .../platform/chips-media/wave5/wave5-vpuapi.c | 1115 ++++++
> .../platform/chips-media/wave5/wave5-vpuapi.h | 1198 ++++++
> .../chips-media/wave5/wave5-vpuconfig.h | 90 +
> .../chips-media/wave5/wave5-vpuerror.h | 454 +++
> .../media/platform/chips-media/wave5/wave5.h | 94 +
> 36 files changed, 11040 insertions(+), 21 deletions(-)
> create mode 100644 Documentation/devicetree/bindings/media/wave5.yml
> create mode 100644 drivers/media/platform/chips-media/coda/Kconfig
> create mode 100644 drivers/media/platform/chips-media/coda/Makefile
> rename drivers/media/platform/chips-media/{ => coda}/coda-bit.c (100%)
> rename drivers/media/platform/chips-media/{ => coda}/coda-common.c (100%)
> rename drivers/media/platform/chips-media/{ => coda}/coda-gdi.c (100%)
> rename drivers/media/platform/chips-media/{ => coda}/coda-h264.c (100%)
> rename drivers/media/platform/chips-media/{ => coda}/coda-jpeg.c (100%)
> rename drivers/media/platform/chips-media/{ => coda}/coda-mpeg2.c (100%)
> rename drivers/media/platform/chips-media/{ => coda}/coda-mpeg4.c (100%)
> rename drivers/media/platform/chips-media/{ => coda}/coda.h (100%)
> rename drivers/media/platform/chips-media/{ => coda}/coda_regs.h (100%)
> rename drivers/media/platform/chips-media/{ => coda}/imx-vdoa.c (100%)
> rename drivers/media/platform/chips-media/{ => coda}/imx-vdoa.h (100%)
> rename drivers/media/platform/chips-media/{ => coda}/trace.h (100%)
> create mode 100644 drivers/media/platform/chips-media/wave5/Kconfig
> create mode 100644 drivers/media/platform/chips-media/wave5/Makefile
> create mode 100644 drivers/media/platform/chips-media/wave5/TODO
> create mode 100644 drivers/media/platform/chips-media/wave5/wave5-helper.c
> create mode 100644 drivers/media/platform/chips-media/wave5/wave5-helper.h
> create mode 100644 drivers/media/platform/chips-media/wave5/wave5-hw.c
> create mode 100644 drivers/media/platform/chips-media/wave5/wave5-regdefine.h
> create mode 100644 drivers/media/platform/chips-media/wave5/wave5-vdi.c
> create mode 100644 drivers/media/platform/chips-media/wave5/wave5-vdi.h
> create mode 100644 drivers/media/platform/chips-media/wave5/wave5-vpu-dec.c
> create mode 100644 drivers/media/platform/chips-media/wave5/wave5-vpu-enc.c
> create mode 100644 drivers/media/platform/chips-media/wave5/wave5-vpu.c
> create mode 100644 drivers/media/platform/chips-media/wave5/wave5-vpu.h
> create mode 100644 drivers/media/platform/chips-media/wave5/wave5-vpuapi.c
> create mode 100644 drivers/media/platform/chips-media/wave5/wave5-vpuapi.h
> create mode 100644 drivers/media/platform/chips-media/wave5/wave5-vpuconfig.h
> create mode 100644 drivers/media/platform/chips-media/wave5/wave5-vpuerror.h
> create mode 100644 drivers/media/platform/chips-media/wave5/wave5.h
>
> --
> 2.25.1
>
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