linux-kernel - [PATCH v3 0/4] media: raspberrypi: Support RPi5's CFE

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives
Hash Suite: Windows password security audit tool. GUI, reports in PDF.
[<prev] [next>] [thread-next>] [day] [month] [year] [list]
Message-Id: <20240815-rp1-cfe-v3-0-e15a979db327@ideasonboard.com>
Date: Thu, 15 Aug 2024 10:28:51 +0300
From: Tomi Valkeinen <tomi.valkeinen@...asonboard.com>
To: Mauro Carvalho Chehab <mchehab@...nel.org>, 
 Raspberry Pi Kernel Maintenance <kernel-list@...pberrypi.com>, 
 Rob Herring <robh+dt@...nel.org>, 
 Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>, 
 Conor Dooley <conor+dt@...nel.org>, 
 Florian Fainelli <florian.fainelli@...adcom.com>, 
 Broadcom internal kernel review list <bcm-kernel-feedback-list@...adcom.com>, 
 Rob Herring <robh@...nel.org>, Krzysztof Kozlowski <krzk+dt@...nel.org>
Cc: linux-media@...r.kernel.org, linux-kernel@...r.kernel.org, 
 devicetree@...r.kernel.org, linux-rpi-kernel@...ts.infradead.org, 
 linux-arm-kernel@...ts.infradead.org, 
 Naushir Patuck <naush@...pberrypi.com>, 
 Laurent Pinchart <laurent.pinchart@...asonboard.com>, 
 Sakari Ailus <sakari.ailus@...ux.intel.com>, 
 Jacopo Mondi <jacopo.mondi@...asonboard.com>, 
 Kieran Bingham <kieran.bingham@...asonboard.com>, 
 Tomi Valkeinen <tomi.valkeinen@...asonboard.com>, 
 Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
Subject: [PATCH v3 0/4] media: raspberrypi: Support RPi5's CFE

This series adds support to the CFE hardware block on RaspberryPi 5. The
CFE (Camera Front End) contains a CSI-2 receiver and Front End, a small
ISP.

To run this, you need the basic RPi5 kernel support plus relevant dts
changes to enable the cfe and camera. My work branch with everything
needed to run CFE can be found from:

git://git.kernel.org/pub/scm/linux/kernel/git/tomba/linux.git rp1-cfe

A few notes about the patches:

- The original work was done by RaspberryPi, mostly by Naushir Patuck.
- The second video node only sets V4L2_CAP_META_CAPTURE instead of both
  V4L2_CAP_META_CAPTURE and V4L2_CAP_META_CAPTURE like the other nodes.
  This is a temporary workaround for userspace (libcamera), and
  hopefully can be removed soon.

I have tested this with:
- A single IMX219 sensor connected to the RPi5's CSI-2 port
- Arducam's UB960 FPD-Link board with four imx219 sensors connected

 Tomi

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@...asonboard.com>
---
Changes in v3:
- Based on v6.11-rc3. The PiSP BE series is now in upstream so no extra
  dependencies are needed.
- Fixed cfe_remove() return value, as the .remove hook has changed
- Added Krzysztof's Rb.
- Link to v2: https://lore.kernel.org/r/20240620-rp1-cfe-v2-0-b8b48fdba3b3@ideasonboard.com

Changes in v2:
- Change the compatible string back to raspberrypi,rp1-cfe from raspberrypi,rpi5-rp1-cfe
- Drop the references to rp1 headers in the DT binding example. This
  allows compiling the example without the rp1 support.
- Fix missing remap lines for mono formats
- Fix csi2_pad_set_fmt() so that the format can be changed back to the
  sink's format from 16-bit or compressed format.
- Link to v1: https://lore.kernel.org/r/20240318-rp1-cfe-v1-0-ac6d960ff22d@ideasonboard.com

---
Tomi Valkeinen (4):
      media: uapi: Add meta formats for PiSP FE config and stats
      dt-bindings: media: Add bindings for raspberrypi,rp1-cfe
      media: raspberrypi: Add support for RP1-CFE
      media: admin-guide: Document the Raspberry Pi CFE (rp1-cfe)

 .../admin-guide/media/raspberrypi-rp1-cfe.dot      |   27 +
 .../admin-guide/media/raspberrypi-rp1-cfe.rst      |   78 +
 Documentation/admin-guide/media/v4l-drivers.rst    |    1 +
 .../bindings/media/raspberrypi,rp1-cfe.yaml        |   98 +
 .../userspace-api/media/v4l/meta-formats.rst       |    1 +
 .../userspace-api/media/v4l/metafmt-pisp-fe.rst    |   39 +
 MAINTAINERS                                        |    8 +
 drivers/media/platform/raspberrypi/Kconfig         |    1 +
 drivers/media/platform/raspberrypi/Makefile        |    1 +
 drivers/media/platform/raspberrypi/rp1-cfe/Kconfig |   14 +
 .../media/platform/raspberrypi/rp1-cfe/Makefile    |    6 +
 .../media/platform/raspberrypi/rp1-cfe/cfe-fmts.h  |  332 +++
 .../media/platform/raspberrypi/rp1-cfe/cfe-trace.h |  196 ++
 drivers/media/platform/raspberrypi/rp1-cfe/cfe.c   | 2524 ++++++++++++++++++++
 drivers/media/platform/raspberrypi/rp1-cfe/cfe.h   |   43 +
 drivers/media/platform/raspberrypi/rp1-cfe/csi2.c  |  583 +++++
 drivers/media/platform/raspberrypi/rp1-cfe/csi2.h  |   89 +
 drivers/media/platform/raspberrypi/rp1-cfe/dphy.c  |  175 ++
 drivers/media/platform/raspberrypi/rp1-cfe/dphy.h  |   27 +
 .../media/platform/raspberrypi/rp1-cfe/pisp-fe.c   |  581 +++++
 .../media/platform/raspberrypi/rp1-cfe/pisp-fe.h   |   53 +
 drivers/media/v4l2-core/v4l2-ioctl.c               |    2 +
 .../uapi/linux/media/raspberrypi/pisp_fe_config.h  |  273 +++
 .../linux/media/raspberrypi/pisp_fe_statistics.h   |   64 +
 include/uapi/linux/videodev2.h                     |    2 +
 25 files changed, 5218 insertions(+)
---
base-commit: 7c626ce4bae1ac14f60076d00eafe71af30450ba
change-id: 20240314-rp1-cfe-142b628b7214

Best regards,
-- 
Tomi Valkeinen <tomi.valkeinen@...asonboard.com>