Hi Hugues,
On 11/22/2016 04:53 PM, Hugues Fruchet wrote:
> This patchset introduces a basic support for DELTA multi-format video
> decoder of STMicroelectronics STiH4xx SoC series.
>
> DELTA hardware IP is controlled by a remote firmware loaded in a ST231
> coprocessor. Communication with firmware is done within an IPC layer
> using rpmsg kernel framework and a shared memory for messages handling.
> This driver is compatible with firmware version 21.1-3.
> While a single firmware is loaded in ST231 coprocessor, it is composed
> of several firmwares, one per video format family.
>
> This DELTA V4L2 driver is designed around files:
> - delta-v4l2.c : handles V4L2 APIs using M2M framework and calls decoder
> ops
> - delta-<codec>* : implements <codec> decoder calling its associated
> video firmware (for ex. MJPEG) using IPC layer
> - delta-ipc.c : IPC layer which handles communication with firmware
> using rpmsg
>
> This first basic support implements only MJPEG hardware acceleration but
> the driver structure is in place to support all the features of the
> DELTA video decoder hardware IP.
>
> This driver depends on:
> - ST remoteproc/rpmsg: patchset posted at https://lkml.org/lkml/2016/9/6/77
> - ST DELTA firmware: its license is under review. When available,
> pull request will be done on linux-firmware.
>
> ===========
> = history =
> ===========
> version 3
> - update after v2 review:
> - fixed m2m_buf_done missing on start_streaming error case
> - fixed q->dev missing in queue_init()
> - removed unsupported s_selection
> - refactored string namings in delta-debug.c
> - fixed space before comment
> - all commits have commit messages
> - reword memory allocator helper commit
>
> version 2
> - update after v1 review:
> - simplified tracing
> - G_/S_SELECTION reworked to fit COMPOSE(CAPTURE)
> - fixed m2m_buf_done missing on start_streaming error case
> - fixed q->dev missing in queue_init()
> - switch to kernel-4.9 rpmsg API
> - DELTA support added in multi_v7_defconfig
> - minor typo fixes & code cleanup
>
> version 1:
> - Initial submission
>
> ===================
> = v4l2-compliance =
> ===================
> Below is the v4l2-compliance report for the version 3 of the DELTA video
> decoder driver. v4l2-compliance has been build from SHA1:
> 600492351ddf40cc524aab73802153674d7d287b (libdvb5: Fix multiple definition of
> dvb_dev_remote_init linking error)
Can you update v4l-utils and run this test again? The S_SELECTION compliance
test has been fixed to allow for ENOTTY as the error code.
If the output looks good, then I'll merge this driver (will be for 4.11).
Regards,
Hans
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