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{ "id": 3084, "url": "https://patchwork.libcamera.org/api/covers/3084/?format=api", "web_url": "https://patchwork.libcamera.org/cover/3084/", "project": { "id": 1, "url": "https://patchwork.libcamera.org/api/projects/1/?format=api", "name": "libcamera", "link_name": "libcamera", "list_id": "libcamera_core", "list_email": "libcamera-devel@lists.libcamera.org", "web_url": "", "scm_url": "", "webscm_url": "" }, "msgid": "<20200313233856.25202-1-laurent.pinchart@ideasonboard.com>", "date": "2020-03-13T23:38:48", "name": "[libcamera-devel,0/8] Simple pipeline handler", "submitter": { "id": 2, "url": "https://patchwork.libcamera.org/api/people/2/?format=api", "name": "Laurent Pinchart", "email": "laurent.pinchart@ideasonboard.com" }, "mbox": "https://patchwork.libcamera.org/cover/3084/mbox/", "series": [ { "id": 718, "url": "https://patchwork.libcamera.org/api/series/718/?format=api", "web_url": "https://patchwork.libcamera.org/project/libcamera/list/?series=718", "date": "2020-03-13T23:38:48", "name": "Simple pipeline handler", "version": 1, "mbox": "https://patchwork.libcamera.org/series/718/mbox/" } ], "comments": "https://patchwork.libcamera.org/api/covers/3084/comments/", "headers": { "Return-Path": "<laurent.pinchart@ideasonboard.com>", "Received": [ "from perceval.ideasonboard.com (perceval.ideasonboard.com\n\t[IPv6:2001:4b98:dc2:55:216:3eff:fef7:d647])\n\tby lancelot.ideasonboard.com (Postfix) with ESMTPS id 0F53F62826\n\tfor <libcamera-devel@lists.libcamera.org>;\n\tSat, 14 Mar 2020 00:39:05 +0100 (CET)", "from pendragon.bb.dnainternet.fi (81-175-216-236.bb.dnainternet.fi\n\t[81.175.216.236])\n\tby perceval.ideasonboard.com (Postfix) with ESMTPSA id 3AC852D6;\n\tSat, 14 Mar 2020 00:39:04 +0100 (CET)" ], "DKIM-Signature": "v=1; a=rsa-sha256; c=relaxed/simple; d=ideasonboard.com;\n\ts=mail; t=1584142744;\n\tbh=vWW/pv9lEAEbiweJV2ShejTZq/GBSsHomfLI+4sntw8=;\n\th=From:To:Cc:Subject:Date:From;\n\tb=H8uqgc3f5xCA+4Z2MZJrxVob+UR1dTqOiWoJB27qC5iVqbyoH30SbwBzaAuIHG5kA\n\tunq8dGFEZyii32uZD89pKwFpMwpRbsGfaZOPZNrdmo59dDmSP6UBqjDqAN2kYvQu3c\n\thMDnWqwuZMS07apGbG8khVpb3Ilp035IOI4CxLtI=", "From": "Laurent Pinchart <laurent.pinchart@ideasonboard.com>", "To": "libcamera-devel@lists.libcamera.org", "Cc": "Martijn Braam <martijn@brixit.nl>,\n\tAndrey Konovalov <andrey.konovalov@linaro.org>,\n\tMickael GUENE <mickael.guene@st.com>,\n\tBenjamin GAIGNARD <benjamin.gaignard@st.com>", "Date": "Sat, 14 Mar 2020 01:38:48 +0200", "Message-Id": "<20200313233856.25202-1-laurent.pinchart@ideasonboard.com>", "X-Mailer": "git-send-email 2.24.1", "MIME-Version": "1.0", "Content-Transfer-Encoding": "8bit", "Subject": "[libcamera-devel] [PATCH 0/8] Simple pipeline handler", "X-BeenThere": "libcamera-devel@lists.libcamera.org", "X-Mailman-Version": "2.1.29", "Precedence": "list", "List-Id": "<libcamera-devel.lists.libcamera.org>", "List-Unsubscribe": "<https://lists.libcamera.org/options/libcamera-devel>,\n\t<mailto:libcamera-devel-request@lists.libcamera.org?subject=unsubscribe>", "List-Archive": "<https://lists.libcamera.org/pipermail/libcamera-devel/>", "List-Post": "<mailto:libcamera-devel@lists.libcamera.org>", "List-Help": "<mailto:libcamera-devel-request@lists.libcamera.org?subject=help>", "List-Subscribe": "<https://lists.libcamera.org/listinfo/libcamera-devel>,\n\t<mailto:libcamera-devel-request@lists.libcamera.org?subject=subscribe>", "X-List-Received-Date": "Fri, 13 Mar 2020 23:39:05 -0000" }, "content": "Hello,\n\nThis patch series builds on Martijn's work to implement a pipeline\nhandler for simpler pipelines. Additional information about the pipeline\nhandler itself can be found in patch 8/8.\n\nPatch 1/8 adds a V4L2 API extension required for pipeline\nauto-configuration, which has been posted as an RFC but not merged in\nthe mainline kernel yet. Patches 2/8 to 7/8 than add a new utility\nfunction and small extensions to the V4L2-related classes. Patch 8/8\nadds the new simple pipeline handler.\n\nThe code has been tested on an i.MX7 platform with a greyscale sensor.\nI've kept sun6i-csi from Martijn's work in the list of supported\ndrivers, but supporting that platform will require extending the\ncorresponding driver to support the VIDIOC_ENUM_FMT extension. Once\ndone, if all goes well, the platform should work out of the box.\n\nBenjamin, Mickael, this is meant to be compatible with the stm32 and\nqcom-camss that you have previously submitted pipeline handlers for. You\nwill need to add the respective drivers to the drivers array in\nSimplePipelineHandler::match(), and, as for sun6i-csi, you will need to\nimplement support for the VIDIOC_ENUM_FMT extension, which should be\nfairly easy.\n\nLaurent Pinchart (7):\n [DNI] include: linux: Extend VIDIOC_ENUM_FMT to support MC-centric\n devices\n libcamera: utils: Add string join function\n libcamera: v4l2_subdevice: Extend [gs]etFormat() to specify format\n type\n libcamera: v4l2_videodevice: Support filtering formats by media bus\n code\n libcamera: v4l2_videodevice: Expose the device capabilities\n libcamera: v4l2_videodevice: Downgrade 4CC conversion errors to\n warnings\n libcamera: v4l2_videodevice: Map V4L2_PIX_FMT_GREY to DRM FourCC\n\nMartijn Braam (1):\n libcamera: pipeline: Add a simple pipeline handler\n\n include/linux/videodev2.h | 4 +-\n src/libcamera/include/utils.h | 44 ++\n src/libcamera/include/v4l2_subdevice.h | 11 +-\n src/libcamera/include/v4l2_videodevice.h | 6 +-\n src/libcamera/pipeline/meson.build | 1 +\n src/libcamera/pipeline/simple/meson.build | 3 +\n src/libcamera/pipeline/simple/simple.cpp | 693 ++++++++++++++++++++++\n src/libcamera/utils.cpp | 16 +\n src/libcamera/v4l2_subdevice.cpp | 23 +-\n src/libcamera/v4l2_videodevice.cpp | 36 +-\n test/utils.cpp | 7 +-\n 11 files changed, 828 insertions(+), 16 deletions(-)\n create mode 100644 src/libcamera/pipeline/simple/meson.build\n create mode 100644 src/libcamera/pipeline/simple/simple.cpp" }