RK3568 Camera 使用
RK3568 Sensor驱动开发移植（1）
RK3568 Sensor驱动开发移植（2）
RK3568 Sensor驱动开发移植（3）
MIPI CSI用法
RK3568平台仅有一个标准物理mipi csi2 dphy,可以工作在full mode 和split mode两个模式, 拆分为csi2_dphy0/csi2_dphy1/csi2_dphy2三个逻辑dphy(参见rk3568.dtsi)
简单点来讲，如果用单目摄像头配置为full mode，若使用双目摄像头配置为split mode
Full Mode
- 仅使用csi2_dphy0,csi2_dphy0与csi2_dphy1/csi2_dphy2互斥,不可同时使用;
- data lane最大4 lanes;
- 最大速率2.5Gbps/lane;
Split Mode
- 仅使用csi2_dphy1和csi2_dphy2, 与csi2_dphy0互斥,不可同时使用;
- csi2_dphy1和csi2_dphy2可同时使用;
- csi2_dphy1和csi2_dphy2各自的data lane最大是2 lanes;
- csi2_dphy1对应物理dphy的lane0/lane1;
- csi2_dphy2对应物理dphy的lane2/lane3;
- 最大速率2.5Gbps/lane
Full Mode设备树配置要点
根据板子原理图的MIPI CSI接口找到sensor是挂在哪路I2C总线上，然后在对应的I2C节点配置camera节点，正确配置camera模组的I2C设备地址、引脚等属性。如下ROC-RK3568-PC的xc7160配置：
&i2c4 {
status = "okay";
gc8034: gc8034@37 {
compatible = "galaxycore,gc8034";
status = "disabled";
reg = <0x37>;
clocks = <&cru 214>;
clock-names = "xvclk";
pinctrl-names = "default";
pinctrl-0 = <&cif_clk>;
reset-gpios = <&gpio3 14 1>;
pwdn-gpios = <&gpio4 12 1>;
rockchip,grf = <&grf>;
power-domains = <&power 8>;
rockchip,camera-module-index = <0>;
rockchip,camera-module-facing = "back";
rockchip,camera-module-name = "RK-CMK-8M-2-v1";
rockchip,camera-module-lens-name = "CK8401";
port {
gc8034_out: endpoint {
remote-endpoint = <&mipi_in_ucam1>;
data-lanes = <1 2 3 4>;
};
};
};
};
csi2_dphy0相关配置
csi2_dphy0与csi2_dphy1/csi2_dphy2互斥,不可同时使用。另外需要使能csi2_dphy_hw节点
&csi2_dphy0 {
status = "okay";
/*
* dphy0 only used for full mode,
* full mode and split mode are mutually exclusive
*/
ports {
#address-cells = <1>;
#size-cells = <0>;
port@0 {
reg = <0>;
#address-cells = <1>;
#size-cells = <0>;
...
mipi_in_ucam4: endpoint@5 {
reg = <5>;
remote-endpoint = <&xc7160_out>;
data-lanes = <1 2 3 4>;
};
};
port@1 {
reg = <1>;
#address-cells = <1>;
#size-cells = <0>;
csidphy_out: endpoint@0 {
reg = <0>;
remote-endpoint = <&isp0_in>;
};
};
};
};
&csi2_dphy_hw {
status = "okay";
};
&csi2_dphy1 {
status = "disabled";
};
&csi2_dphy2 {
status = "disabled";
};
isp相关配置
&rkisp {
status = "okay";
};
&rkisp_mmu {
status = "okay";
};
&rkisp_vir0 {
status = "okay";
port {
#address-cells = <1>;
#size-cells = <0>;
isp0_in: endpoint@0 {
reg = <0>;
remote-endpoint = <&csidphy_out>;
};
};
};
Split Mode设备树配置要点
我们需要根据板子原理图的MIPI CSI接口找到两个sensor是挂在哪个I2C总线上，然后在对应的I2C节点配置两个camera节点，正确配置camera模组的I2C设备地址、引脚等属性。如下ROC-RK3568-PC的ov02k10/ov9281配置：
&i2c4 {
status = "okay";
ov02k10: ov02k10@6c {
status = "okay";
compatible = "ovti,ov02k10";
reg = <0x6c>;
avdd-supply = <&vcc_camera>;
power-domains = <&power 8>;
clock-names = "xvclk";
pinctrl-names = "default";
clocks = <&pmucru 28>;
pinctrl-0 = <&refclk_pins>;
power-gpios = <&gpio0 29 0>;
pwdn-gpios = <&gpio4 13 1>;
firefly,clkout-enabled-index = <1>;
rockchip,camera-module-index = <0>;
rockchip,camera-module-facing = "back";
rockchip,camera-module-name = "YT-RV1109-2-V1";
rockchip,camera-module-lens-name = "40IR-2MP-F20";
port {
ov02k10_out: endpoint {
remote-endpoint = <&dphy1_in>;
data-lanes = <1 2>;
};
};
};
ov9281: ov9281@c0{
status = "okay";
compatible = "ovti,ov9281";
reg = <0xc0>;
avdd-supply = <&vcc_camera>;
power-domains = <&power 8>;
clock-names = "xvclk";
pinctrl-names = "default";
flash-leds = <&flash_led>;
pwdn-gpios = <&gpio4 12 0>;
firefly,clkout-enabled-index = <0>;
rockchip,camera-module-index = <1>;
rockchip,camera-module-facing = "back";
rockchip,camera-module-name = "YT-RV1109-2-V1";
rockchip,camera-module-lens-name = "40IR-2MP-F20";
port {
ov9281_out: endpoint {
remote-endpoint = <&dphy2_in>;
data-lanes = <1 2>;
};
};
};
};
csi2_dphy1/csi2_dphy2相关配置
&csi2_dphy0 {
status = "disabled";
};
&csi2_dphy1 {
status = "okay";
/*
* dphy1 only used for split mode,
* can be used concurrently with dphy2
* full mode and split mode are mutually exclusive
*/
ports {
#address-cells = <1>;
#size-cells = <0>;
port@0 {
reg = <0>;
#address-cells = <1>;
#size-cells = <0>;
dphy1_in: endpoint@1 {
reg = <1>;
remote-endpoint = <&gc2053_out>;
data-lanes = <1 2>;
};
};
port@1 {
reg = <1>;
#address-cells = <1>;
#size-cells = <0>;
dphy1_out: endpoint@1 {
reg = <1>;
remote-endpoint = <&isp0_in>;
};
};
};
};
&csi2_dphy2 {
status = "okay";
/*
* dphy2 only used for split mode,
* can be used concurrently with dphy1
* full mode and split mode are mutually exclusive
*/
ports {
#address-cells = <1>;
#size-cells = <0>;
port@0 {
reg = <0>;
#address-cells = <1>;
#size-cells = <0>;
dphy2_in: endpoint@1 {
reg = <1>;
remote-endpoint = <&gc2093_out>;
data-lanes = <1 2>;
};
};
port@1 {
reg = <1>;
#address-cells = <1>;
#size-cells = <0>;
dphy2_out: endpoint@1 {
reg = <1>;
remote-endpoint = <&mipi_csi2_input>;
};
};
};
};
&csi2_dphy_hw {
status = "okay";
};
&mipi_csi2 {
status = "okay";
ports {
#address-cells = <1>;
#size-cells = <0>;
port@0 {
reg = <0>;
#address-cells = <1>;
#size-cells = <0>;
mipi_csi2_input: endpoint@1 {
reg = <1>;
remote-endpoint = <&dphy2_out>;
data-lanes = <1 2>;
};
};
port@1 {
reg = <1>;
#address-cells = <1>;
#size-cells = <0>;
mipi_csi2_output: endpoint@0 {
reg = <0>;
remote-endpoint = <&cif_mipi_in>;
data-lanes = <1 2>;
};
};
};
};
&rkcif_mipi_lvds {
status = "okay";
port {
cif_mipi_in: endpoint {
remote-endpoint = <&mipi_csi2_output>;
data-lanes = <1 2>;
};
};
};
&rkcif_mipi_lvds_sditf {
status = "okay";
port {
mipi_lvds_sditf: endpoint {
remote-endpoint = <&isp1_in>;
data-lanes = <1 2>;
};
};
};
isp相关配置
&rkisp {
status = "okay";
};
&rkisp_mmu {
status = "okay";
};
&rkisp_vir0 {
status = "okay";
port {
#address-cells = <1>;
#size-cells = <0>;
isp0_in: endpoint@0 {
reg = <0>;
remote-endpoint = <&dphy1_out>;
};
};
};
&rkisp_vir1 {
status = "okay";
port {
reg = <0>;
#address-cells = <1>;
#size-cells = <0>;
isp1_in: endpoint@0 {
reg = <0>;
remote-endpoint = <&mipi_lvds_sditf>;
};
};
};
&rkcif_mmu {
status = "okay";
};
&rkcif {
status = "okay";
};
IQ文件
raw摄像头支持的iq文件路径external/camera_engine_rkaiq/iqfiles/isp21, 与以前不一样的地方是iq文件不再采用.xml的方式，而是采用.json的方式。虽有提供xml转json的工具, 但isp20的xml配置转换后也不适用isp21。
若使用raw摄像头sensor，请留意isp21目录所支持的iq文件
