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[76.224.4.192]) by smtp.gmail.com with ESMTPSA id 46e09a7af769-7d7c9b39e11sm897413a34.18.2026.03.17.17.10.59 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 17 Mar 2026 17:10:59 -0700 (PDT) From: Ben Hoff To: linux-media@vger.kernel.org Cc: Mauro Carvalho Chehab , Hans Verkuil , linux-kernel@vger.kernel.org, Ben Hoff Subject: [PATCH v2 0/2] media: pci: add AVMatrix HWS capture driver Date: Tue, 17 Mar 2026 20:10:52 -0400 Message-ID: <20260318001056.465071-1-hoff.benjamin.k@gmail.com> X-Mailer: git-send-email 2.53.0 In-Reply-To: <20260112022420.390854-1-hoff.benjamin.k@gmail.com> References: <20260112022420.390854-1-hoff.benjamin.k@gmail.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Add an AVMatrix HWS PCIe capture driver and its MAINTAINERS entry. The driver exposes one V4L2 capture node per input channel, supports YUYV capture through vb2-dma-contig, reports DV timings, emits SOURCE_CHANGE events, and provides the basic brightness/contrast/ saturation/hue controls used by the hardware. Changes in v2: - keep scratch DMA allocation on a single probe-owned path - fix hws_video_register()/probe unwind ownership to avoid control-handler double-free on late registration failures - on live input resolution changes, emit SOURCE_CHANGE, error queued buffers, and require userspace to renegotiate buffers and restart streaming - add enum_frameintervals and report DV_RX_POWER_PRESENT, addressing the two v1 v4l2-compliance warnings Testing for v2: - build-tested with W=1: make -C /home/hoff/swdev/linux O=/tmp/hws-build \ M=drivers/media/pci/hws W=1 KBUILD_MODPOST_WARN=1 modules - checkpatch.pl --no-tree --strict --file ... is clean for the new files Context carried forward from v1: - audio support remains intentionally omitted from this submission - the driver is derived from a GPL out-of-tree driver; the baseline tree is available at https://github.com/benhoff/hws/tree/baseline - a vendor driver bundle is available at https://www.acasis.com/pages/acasis-product-drivers - the vendor is not involved in this upstreaming effort Ben Hoff (2): media: pci: add AVMatrix HWS capture driver MAINTAINERS: add entry for AVMatrix HWS driver MAINTAINERS | 6 + drivers/media/pci/Kconfig | 1 + drivers/media/pci/Makefile | 1 + drivers/media/pci/hws/Kconfig | 12 + drivers/media/pci/hws/Makefile | 4 + drivers/media/pci/hws/hws.h | 176 +++ drivers/media/pci/hws/hws_irq.c | 271 +++++ drivers/media/pci/hws/hws_irq.h | 10 + drivers/media/pci/hws/hws_pci.c | 864 +++++++++++++ drivers/media/pci/hws/hws_reg.h | 144 +++ drivers/media/pci/hws/hws_v4l2_ioctl.c | 778 ++++++++++++ drivers/media/pci/hws/hws_v4l2_ioctl.h | 43 + drivers/media/pci/hws/hws_video.c | 1546 ++++++++++++++++++++++++ drivers/media/pci/hws/hws_video.h | 29 + 14 files changed, 3885 insertions(+) create mode 100644 drivers/media/pci/hws/Kconfig create mode 100644 drivers/media/pci/hws/Makefile create mode 100644 drivers/media/pci/hws/hws.h create mode 100644 drivers/media/pci/hws/hws_irq.c create mode 100644 drivers/media/pci/hws/hws_irq.h create mode 100644 drivers/media/pci/hws/hws_pci.c create mode 100644 drivers/media/pci/hws/hws_reg.h create mode 100644 drivers/media/pci/hws/hws_v4l2_ioctl.c create mode 100644 drivers/media/pci/hws/hws_v4l2_ioctl.h create mode 100644 drivers/media/pci/hws/hws_video.c create mode 100644 drivers/media/pci/hws/hws_video.h base-commit: f0caa1d49cc07b30a7e2f104d3853ec6dc1c3cad -- 2.53.0