[PATCH RFT/RFC 00/49] staging: media: bring back zoran driver

From: Corentin Labbe
Date: Mon Sep 21 2020 - 06:20:36 EST


The zoran driver was removed in 5.3
The main reason of the removing was lack of motivation to convert it to
Since I need it, I worked on bringing it back.

So the plan to achieve it was:
- clean up the coding style.
- convert old usage/API
- clean unused code
- convert to VB2

I have tried to split a bit the VB2 patch (by adding/removing code in
another patch), but the result is unfortunately still a big patch.

The result of this serie is a working zoran driver.
Furthermore it is now compliant to v4l-compliance.

In the process some old (useless) feature (fbuf, overlay) was removed
for simplifying maintenance.

The zoran hardware support MJPEG decompression, but this feature is
temporarily disabled by this serie.
But basically, this feature was unusable, since the only tool which
permitted to use it was a mplayer option.
But this mplayer option no longer compile (probably since a long time)
and is such a hack (a copy of some private ffmpeg structure) that it is unfixable.
Happily, when I started to work on zoran, a patch was posted on ffmpeg
ML which permit it to output non-raw video stream (and so MJPEG for zoran case).
But the zoran hw does not like some part of JPEG header it receives, so
a filter need to be written.
Anyway, this disabling is not a regression, since this feature was not
usable since a long time.

Since the driver was in staging, I targeted staging, but probably the
driver is in a sufficient good shape to target media and bypass staging.

This driver is tested on a DC10+ (on x86). Tests on different hardware
are welcome.

I would like to thanks all people that helped me to achieve this (mostly #v4l)


Corentin Labbe (49):
staging: media: Revert "media: zoran: remove deprecated driver"
MAINTAINERS: change maintainer of the zoran driver
staging: media: zoran: datasheet is no longer available from zoran.com
staging: media: zoran: Documentation: fix typo
staging: media: zoran: fix checkpatch issue
staging: media: zoran: unsplit lines
staging: media: zoran: do not forward declare zr36057_init_vfe
staging: media: zoran: convert all error dprintk to pci_err/pr_err
staging: media: zoran: convert dprintk warn
staging: media: zoran: convert dprintk info to pci_info
staging: media: zoran: convert dprintk debug
staging: media: zoran: zoran_device.c: convert pr_x to pci_x
staging: media: zoran: remove proc_fs
staging: media: zoran: use VFL_TYPE_VIDEO
staging: media: zoran: use v4l2_buffer_set_timestamp
staging: media: zoran: do not print random guest 0
staging: media: zoran: move buffer_size out of zoran_fh
staging: media: zoran: move v4l_settings out of zoran_fh
staging: media: zoran: move jpg_settings out of zoran_fh
staging: media: zoran: move overlay_settings out of zoran_fh
staging: media: zoran: Use video_drvdata to get struct zoran
staging: media: zoran: Change zoran_v4l_set_format parameter from
zoran_fh to zoran
staging: media: zoran: remove overlay
staging: media: zoran: Use DMA coherent for stat_com
staging: media: zoran: use ZR_NORM
staging: media: zoran: zoran does not support STD_ALL
staging: media: zoran: convert irq to pci irq
staging: media: zoran: convert zoran alloc to devm
staging: media: zoran: convert mdelay to udelay
staging: media: zoran: use devm for videocodec_master alloc
staging: media: zoran: use pci_request_regions
staging: media: zoran: use devm_ioremap
staging: media: zoran: add stat_com buffer
staging: media: zoran: constify struct tvnorm
staging: media: zoran: constify codec_name
staging: media: zoran: Add more check for compliance
staging: media: zoran: add fallthrough keyword
staging: media: zoran: Add vb_queue
staging: media: zoran: disable output
staging: media: zoran: device support only 32bit DMA address
staging: media: zoran: enable makefile
staging: media: zoran: remove framebuffer support
staging: media: zoran: add vidioc_g_parm
staging: media: zoran: remove test_interrupts
staging: media: zoran: fix use of buffer_size and sizeimage
staging: media: zoran: fix some compliance test
staging: media: zoran: remove deprecated .vidioc_g_jpegcomp
staging: media: zoran: convert to vb2
staging: media: zoran: update TODO

Documentation/media/v4l-drivers/zoran.rst | 575 +++++++++
drivers/staging/media/Kconfig | 2 +
drivers/staging/media/Makefile | 1 +
drivers/staging/media/zoran/Kconfig | 76 ++
drivers/staging/media/zoran/Makefile | 7 +
drivers/staging/media/zoran/TODO | 19 +
drivers/staging/media/zoran/videocodec.c | 330 +++++
drivers/staging/media/zoran/videocodec.h | 308 +++++
drivers/staging/media/zoran/zoran.h | 320 +++++
drivers/staging/media/zoran/zoran_card.c | 1320 ++++++++++++++++++++
drivers/staging/media/zoran/zoran_card.h | 30 +
drivers/staging/media/zoran/zoran_device.c | 1002 +++++++++++++++
drivers/staging/media/zoran/zoran_device.h | 64 +
drivers/staging/media/zoran/zoran_driver.c | 1022 +++++++++++++++
drivers/staging/media/zoran/zr36016.c | 433 +++++++
drivers/staging/media/zoran/zr36016.h | 92 ++
drivers/staging/media/zoran/zr36050.c | 842 +++++++++++++
drivers/staging/media/zoran/zr36050.h | 163 +++
drivers/staging/media/zoran/zr36057.h | 154 +++
drivers/staging/media/zoran/zr36060.c | 872 +++++++++++++
drivers/staging/media/zoran/zr36060.h | 201 +++
22 files changed, 7843 insertions(+)
create mode 100644 Documentation/media/v4l-drivers/zoran.rst
create mode 100644 drivers/staging/media/zoran/Kconfig
create mode 100644 drivers/staging/media/zoran/Makefile
create mode 100644 drivers/staging/media/zoran/TODO
create mode 100644 drivers/staging/media/zoran/videocodec.c
create mode 100644 drivers/staging/media/zoran/videocodec.h
create mode 100644 drivers/staging/media/zoran/zoran.h
create mode 100644 drivers/staging/media/zoran/zoran_card.c
create mode 100644 drivers/staging/media/zoran/zoran_card.h
create mode 100644 drivers/staging/media/zoran/zoran_device.c
create mode 100644 drivers/staging/media/zoran/zoran_device.h
create mode 100644 drivers/staging/media/zoran/zoran_driver.c
create mode 100644 drivers/staging/media/zoran/zr36016.c
create mode 100644 drivers/staging/media/zoran/zr36016.h
create mode 100644 drivers/staging/media/zoran/zr36050.c
create mode 100644 drivers/staging/media/zoran/zr36050.h
create mode 100644 drivers/staging/media/zoran/zr36057.h
create mode 100644 drivers/staging/media/zoran/zr36060.c
create mode 100644 drivers/staging/media/zoran/zr36060.h