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4070e2a64c
This target adds support for the StarFive JH7100 and JH7110 SoCs, based on 6.1, as well as a couple boards equipped with these. Specifications: SoCs: JH7100: - StarFive JH7100 dual-core RISC-V (U74, RC64GC) - additional monitoring (S7) and control (E24) cores - 2Mb L2 cache JH7110: - StarFive JH7110 quad-core RISC-V (U74, RV64GC) - additional monitoring (S7) and control (E24) cores - 2Mb L2 cache Boards: VisionFive1: - JH7100 @ 1GHz - Memory: 8Gb LPDDR4 - 4x USB3.0 - 1x GBit ethernet - AMPak 6236 wifi / bluetooth - audio - powered via USB-C VisionFive2: - JH7110 @ 1.5GHz - Memory: 2/4/8Gb DDR4 - 2x Gbit ethernet - 2x USB3.0 / 2x USB2.0 - eMMC / SDIO - various multimedia input/outputs (MIPI CSI, HDMI, audio) - M.2 key M slot - PoE support - powered via USB-C Installation: Standard SD-card installation via dd-ing the generated image to an SD-card of at least 256Mb. Signed-off-by: Zoltan HERPAI <wigyori@uid0.hu>
107 lines
4.0 KiB
Diff
107 lines
4.0 KiB
Diff
From 949807343300a75b6e7c3e47463f817a7b6bc790 Mon Sep 17 00:00:00 2001
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From: Jack Zhu <jack.zhu@starfivetech.com>
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Date: Fri, 12 May 2023 18:28:40 +0800
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Subject: [PATCH 082/122] media: admin-guide: Add starfive_camss.rst for
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Starfive Camera Subsystem
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Add starfive_camss.rst file that documents the Starfive Camera
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Subsystem driver which is used for handing image sensor data.
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Signed-off-by: Jack Zhu <jack.zhu@starfivetech.com>
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---
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.../admin-guide/media/starfive_camss.rst | 57 +++++++++++++++++++
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.../media/starfive_camss_graph.dot | 16 ++++++
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.../admin-guide/media/v4l-drivers.rst | 1 +
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3 files changed, 74 insertions(+)
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create mode 100644 Documentation/admin-guide/media/starfive_camss.rst
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create mode 100644 Documentation/admin-guide/media/starfive_camss_graph.dot
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--- /dev/null
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+++ b/Documentation/admin-guide/media/starfive_camss.rst
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@@ -0,0 +1,57 @@
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+.. SPDX-License-Identifier: GPL-2.0
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+
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+.. include:: <isonum.txt>
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+
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+================================
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+Starfive Camera Subsystem driver
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+================================
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+
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+Introduction
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+------------
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+
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+This file documents the driver for the Starfive Camera Subsystem found on
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+Starfive JH7110 SoC. The driver is located under drivers/media/platform/
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+starfive.
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+
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+The driver implements V4L2, Media controller and v4l2_subdev interfaces.
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+Camera sensor using V4L2 subdev interface in the kernel is supported.
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+
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+The driver has been successfully used on the Gstreamer 1.18.5 with
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+v4l2src plugin.
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+
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+
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+Starfive Camera Subsystem hardware
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+----------------------------------
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+
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+The Starfive Camera Subsystem hardware consists of:
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+
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+- MIPI DPHY Receiver: receives mipi data from a MIPI camera sensor.
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+- MIPI CSIRx Controller: is responsible for handling and decoding CSI2 protocol
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+ based camera sensor data stream.
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+- ISP: handles the image data streams from the MIPI CSIRx Controller.
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+- VIN(Video In): a top-level module, is responsible for controlling power
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+ and clocks to other modules, dumps the input data to memory or transfers the
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+ input data to ISP.
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+
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+
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+Topology
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+--------
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+
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+The media controller pipeline graph is as follows:
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+
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+.. _starfive_camss_graph:
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+
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+.. kernel-figure:: starfive_camss_graph.dot
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+ :alt: starfive_camss_graph.dot
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+ :align: center
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+
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+The driver has 2 video devices:
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+
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+- stf_vin0_wr_video0: capture device for images directly from the VIN module.
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+- stf_vin0_isp0_video1: capture device for images without scaling.
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+
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+The driver has 3 subdevices:
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+
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+- stf_isp0: is responsible for all the isp operations.
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+- stf_vin0_wr: used to dump RAW images to memory.
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+- stf_vin0_isp0: used to capture images for the stf_vin0_isp0_video1 device.
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--- /dev/null
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+++ b/Documentation/admin-guide/media/starfive_camss_graph.dot
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@@ -0,0 +1,16 @@
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+digraph board {
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+ rankdir=TB
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+ n00000001 [label="{{<port0> 0} | stf_isp0\n/dev/v4l-subdev0 | {<port1> 1}}", shape=Mrecord, style=filled, fillcolor=green]
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+ n00000001:port1 -> n0000000d:port0
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+ n00000004 [label="{{<port0> 0} | stf_vin0_wr\n/dev/v4l-subdev1 | {<port1> 1}}", shape=Mrecord, style=filled, fillcolor=green]
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+ n00000004:port1 -> n00000007 [style=bold]
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+ n00000007 [label="stf_vin0_wr_video0\n/dev/video0", shape=box, style=filled, fillcolor=yellow]
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+ n0000000d [label="{{<port0> 0} | stf_vin0_isp0\n/dev/v4l-subdev2 | {<port1> 1}}", shape=Mrecord, style=filled, fillcolor=green]
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+ n0000000d:port1 -> n00000010 [style=bold]
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+ n00000010 [label="stf_vin0_isp0_video1\n/dev/video1", shape=box, style=filled, fillcolor=yellow]
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+ n00000018 [label="{{<port0> 0} | cdns_csi2rx.19800000.csi-bridge\n | {<port1> 1 | <port2> 2 | <port3> 3 | <port4> 4}}", shape=Mrecord, style=filled, fillcolor=green]
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+ n00000018:port1 -> n00000004:port0 [style=dashed]
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+ n00000018:port1 -> n00000001:port0
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+ n00000028 [label="{{} | imx219 6-0010\n | {<port0> 0}}", shape=Mrecord, style=filled, fillcolor=green]
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+ n00000028:port0 -> n00000018:port0 [style=bold]
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+}
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--- a/Documentation/admin-guide/media/v4l-drivers.rst
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+++ b/Documentation/admin-guide/media/v4l-drivers.rst
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@@ -30,5 +30,6 @@ Video4Linux (V4L) driver-specific docume
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si470x
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si4713
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si476x
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+ starfive_camss
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vimc
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vivid
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