From patchwork Tue Feb 28 19:25:41 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: =?utf-8?q?Martin_T=C5=AFma?= X-Patchwork-Id: 657612 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 34AA5C64ED6 for ; Tue, 28 Feb 2023 18:25:58 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229706AbjB1SZ5 (ORCPT ); Tue, 28 Feb 2023 13:25:57 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:58954 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229529AbjB1SZz (ORCPT ); Tue, 28 Feb 2023 13:25:55 -0500 Received: from mx.gpxsee.org (mx.gpxsee.org [37.205.14.76]) by lindbergh.monkeyblade.net (Postfix) with ESMTP id E8EB7A5D5; Tue, 28 Feb 2023 10:25:52 -0800 (PST) Received: from mgb4.digiteq.red (unknown [62.77.71.229]) by mx.gpxsee.org (Postfix) with ESMTPSA id 80EF2D3B2; Tue, 28 Feb 2023 19:25:50 +0100 (CET) From: tumic@gpxsee.org To: Mauro Carvalho Chehab Cc: linux-media@vger.kernel.org, linux-kernel@vger.kernel.org, =?utf-8?q?Mar?= =?utf-8?q?tin_T=C5=AFma?= Subject: [PATCH v6 0/1] Digiteq Automotive MGB4 driver Date: Tue, 28 Feb 2023 20:25:41 +0100 Message-Id: <20230228192542.1263-1-tumic@gpxsee.org> X-Mailer: git-send-email 2.39.2 MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-media@vger.kernel.org From: Martin Tůma Hi, This patch adds a driver for the Digiteq Automotive MGB4 grabber card. MGB4 is a modular frame grabber PCIe card for automotive video interfaces (FPD-Link and GMSL for now). It is based on a Xilinx FPGA and uses their XDMA IP core for DMA transfers. Additionally, Xilinx I2C and SPI IP cores which already have drivers in linux are used in the design. The driver is a quite standard v4l2 driver, with one exception - there are a lot of sysfs options that may/must be set before opening the v4l2 device to adapt the card on a specific signal (see mgb4.rst for details) as the card must be able to work with various signal sources (or displays) that can not be auto-detected. I have run the driver through the v4l2-compliance test suite for both the input and the output and the results look fine to me (I can provide the output if required). Changes in v6: * Rebased to current master that includes the Xilinx XDMA driver. Changes in v5: * Removed unused includes Changes in v4: * Redesigned the signal change handling logic. Now using the propper timings API in the video input driver and a propper open() syscall check/logic in the video output driver. * Fixed all minor issues from v3 review. * 'checkpatch.pl --strict' used for checking the code. Changes in v3: * Rebased the DMA transfers part to use the new XDMA driver from Xilinx/AMD Changes in v2: * Completely rewritten the original Xilinx's XDMA driver to meet kernel code standards. * Added all required "to" and "cc" mail addresses. Martin Tůma (1): Added Digiteq Automotive MGB4 driver Documentation/admin-guide/media/mgb4.rst | 352 ++++++++ .../admin-guide/media/pci-cardlist.rst | 1 + .../admin-guide/media/v4l-drivers.rst | 1 + MAINTAINERS | 7 + drivers/media/pci/Kconfig | 1 + drivers/media/pci/Makefile | 1 + drivers/media/pci/mgb4/Kconfig | 17 + drivers/media/pci/mgb4/Makefile | 6 + drivers/media/pci/mgb4/mgb4_cmt.c | 247 ++++++ drivers/media/pci/mgb4/mgb4_cmt.h | 16 + drivers/media/pci/mgb4/mgb4_core.c | 641 ++++++++++++++ drivers/media/pci/mgb4/mgb4_core.h | 65 ++ drivers/media/pci/mgb4/mgb4_dma.c | 123 +++ drivers/media/pci/mgb4/mgb4_dma.h | 18 + drivers/media/pci/mgb4/mgb4_i2c.c | 140 +++ drivers/media/pci/mgb4/mgb4_i2c.h | 35 + drivers/media/pci/mgb4/mgb4_io.h | 39 + drivers/media/pci/mgb4/mgb4_regs.c | 30 + drivers/media/pci/mgb4/mgb4_regs.h | 35 + drivers/media/pci/mgb4/mgb4_sysfs.h | 18 + drivers/media/pci/mgb4/mgb4_sysfs_in.c | 780 ++++++++++++++++ drivers/media/pci/mgb4/mgb4_sysfs_out.c | 732 +++++++++++++++ drivers/media/pci/mgb4/mgb4_sysfs_pci.c | 86 ++ drivers/media/pci/mgb4/mgb4_trigger.c | 208 +++++ drivers/media/pci/mgb4/mgb4_trigger.h | 8 + drivers/media/pci/mgb4/mgb4_vin.c | 830 ++++++++++++++++++ drivers/media/pci/mgb4/mgb4_vin.h | 63 ++ drivers/media/pci/mgb4/mgb4_vout.c | 501 +++++++++++ drivers/media/pci/mgb4/mgb4_vout.h | 58 ++ 29 files changed, 5059 insertions(+) create mode 100644 Documentation/admin-guide/media/mgb4.rst create mode 100644 drivers/media/pci/mgb4/Kconfig create mode 100644 drivers/media/pci/mgb4/Makefile create mode 100644 drivers/media/pci/mgb4/mgb4_cmt.c create mode 100644 drivers/media/pci/mgb4/mgb4_cmt.h create mode 100644 drivers/media/pci/mgb4/mgb4_core.c create mode 100644 drivers/media/pci/mgb4/mgb4_core.h create mode 100644 drivers/media/pci/mgb4/mgb4_dma.c create mode 100644 drivers/media/pci/mgb4/mgb4_dma.h create mode 100644 drivers/media/pci/mgb4/mgb4_i2c.c create mode 100644 drivers/media/pci/mgb4/mgb4_i2c.h create mode 100644 drivers/media/pci/mgb4/mgb4_io.h create mode 100644 drivers/media/pci/mgb4/mgb4_regs.c create mode 100644 drivers/media/pci/mgb4/mgb4_regs.h create mode 100644 drivers/media/pci/mgb4/mgb4_sysfs.h create mode 100644 drivers/media/pci/mgb4/mgb4_sysfs_in.c create mode 100644 drivers/media/pci/mgb4/mgb4_sysfs_out.c create mode 100644 drivers/media/pci/mgb4/mgb4_sysfs_pci.c create mode 100644 drivers/media/pci/mgb4/mgb4_trigger.c create mode 100644 drivers/media/pci/mgb4/mgb4_trigger.h create mode 100644 drivers/media/pci/mgb4/mgb4_vin.c create mode 100644 drivers/media/pci/mgb4/mgb4_vin.h create mode 100644 drivers/media/pci/mgb4/mgb4_vout.c create mode 100644 drivers/media/pci/mgb4/mgb4_vout.h base-commit: ae3419fbac845b4d3f3a9fae4cc80c68d82cdf6e