Based on kernel version 6.8
. Page generated on 2024-03-11 21:26 EST
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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 | .. SPDX-License-Identifier: GPL-2.0 .. include:: <isonum.txt> ================================ Starfive Camera Subsystem driver ================================ Introduction ------------ This file documents the driver for the Starfive Camera Subsystem found on Starfive JH7110 SoC. The driver is located under drivers/staging/media/starfive/ camss. The driver implements V4L2, Media controller and v4l2_subdev interfaces. Camera sensor using V4L2 subdev interface in the kernel is supported. The driver has been successfully used on the Gstreamer 1.18.5 with v4l2src plugin. Starfive Camera Subsystem hardware ---------------------------------- The Starfive Camera Subsystem hardware consists of:: |\ +---------------+ +-----------+ +----------+ | \ | | | | | | | | | | | | | MIPI |----->| |----->| ISP |----->| | | | | | | | | | +----------+ | | | | | Memory | |MUX| +---------------+ | Interface | +----------+ | | | | | | | |---------------------------->| | | Parallel |----->| | | | | | | | | | +----------+ | / | | |/ +-----------+ - MIPI: The MIPI interface, receiving data from a MIPI CSI-2 camera sensor. - Parallel: The parallel interface, receiving data from a parallel sensor. - ISP: The ISP, processing raw Bayer data from an image sensor and producing YUV frames. Topology -------- The media controller pipeline graph is as follows: .. _starfive_camss_graph: .. kernel-figure:: starfive_camss_graph.dot :alt: starfive_camss_graph.dot :align: center The driver has 2 video devices: - capture_raw: The capture device, capturing image data directly from a sensor. - capture_yuv: The capture device, capturing YUV frame data processed by the ISP module The driver has 3 subdevices: - stf_isp: is responsible for all the isp operations, outputs YUV frames. - cdns_csi2rx: a CSI-2 bridge supporting up to 4 CSI lanes in input, and 4 different pixel streams in output. - imx219: an image sensor, image data is sent through MIPI CSI-2. |