目录
1、原理图分析2、编写和配置设备树3、调试方法4、遇到的问题与解决5、补丁
1、原理图分析
从上图可看出，我们需要关心的，①MIPI数据和时钟接口使用的是MIPI_TX1/RX1 ②I2C使用的是I2C4总线 ③RST复位引脚使用的是GPIO2_D2 ④PWDN使用的是GPIO1_C7 ⑤MCLK使用的是GPIO3_B7 ⑥需要保证红色框框的供电电源正常。 结合RK提供的文档，如下摄像头数据采集拓扑图所示，我们就可以开始编写配置设备树了，其实官方提供了很多类似的设备树配置给我们参考的。
2、编写和配置设备树
①配置OV13850设备树节点Ⅰ ②配置OV13850设备树节点Ⅱ 提示：下图复用功能是<. RK_PB7 3 &pcfg_pull_one>; ③配置dphy ④配置isp
3、调试方法
①移植成功后，使用dmesg指令查看对应驱动的log ②驱动加载成功后，会有生成以下的摄像头设备节点 ③RKISP 驱动如果加载成功,会有 video 及 media 设备存在于/dev/目录下。系统中可能存在 多个/dev/video 设备,通过/sys 可以查询到 RKISP 注册的 video 节点 ④查看拓扑结构 Ⅰ、通过media-ctl -p 查看rkisp1_selfpath 信息，可以知道打开哪些media设备 Ⅱ、再通过media-ctl -p /dev/media0 查看已打开的media设备的拓扑，下图是截取了一部分信息 ⑤查看摄像头支持哪几种图像流格式，截图省略 指令：v4l2-ctl -d /dev/video0 --list-formats ⑥查看调试上层相关信息，截图省略 指令：dumpsys media.camera ⑦抓图 指令：v4l2-ctl -d /dev/video0 --set-fmt-video=width=800,height=600,pixelformat=NV12 --stream-mmap=3 --stream-to=/sdcard/out.yuv --stream-skip=9 --stream-count=1 查看YUV图片可以使用该网站：在线查看 YUV 文件的免费在线工具 - ImageToStl
4、遇到的问题与解决
①问题1：相机权限问题:解决问题的链接 ②问题2：没有获取到对应IQ文件，后面查看编译生成的文件，并没有将IQ文件拷贝过去，报错如下图所示 解决方法：找到对应IQ目录上的.mk文件，在.mk文件中的PRODUCT_COPY_FILES节点下添加
$(call find-copy-subdir-files,*,$(CUR_PATH)/camera/rkisp1/,$(TARGET_COPY_OUT_VENDOR)/etc/camera/rkisp1/) \
这条语句，这条语句作用是拷贝所有的IQ文件到/vendor/etc/camera/rkisp1/目录下。 ③问题3：屏幕显示UI为0度横屏，而默认\hardware\rockchip\camera\etc\camera\camera3_profiles_rk3399.xml文件中配置的是传感器成像方向是90度，导致相机成像出现拉伸现象。 解决方法：如下图所示。 ④问题4：图像上下或者左右相反，可以通过修改OV13850寄存器完成上下或左右的翻转。 解决方法：如下图介绍。
5、补丁
commit ea5601611a8fdff4b5efaf6db0f947bab7d0447d
Author: dengjiawen <1411471554@qq.com>
Date: Thu Feb 22 10:52:28 2024 +0800
适配MIPI摄像头OV13850
diff --git a/frameworks/base/data/etc/privapp-permissions-platform.xml b/frameworks/base/data/etc/privapp-permissions-platform.xml
index 3b6abd50ee..0912e0ec6f 100644
--- a/frameworks/base/data/etc/privapp-permissions-platform.xml
+++ b/frameworks/base/data/etc/privapp-permissions-platform.xml
@@ -469,4 +469,8 @@ applications that come with the platform
+
+
+
+
diff --git a/hardware/rockchip/camera/etc/camera/camera3_profiles_rk3399.xml b/hardware/rockchip/camera/etc/camera/camera3_profiles_rk3399.xml
index 84dd8b5ed5..61ac244250 100755
--- a/hardware/rockchip/camera/etc/camera/camera3_profiles_rk3399.xml
+++ b/hardware/rockchip/camera/etc/camera/camera3_profiles_rk3399.xml
@@ -251,7 +251,7 @@
-
+
@@ -291,7 +291,7 @@
-
+
@@ -463,7 +463,7 @@
-
+
diff --git a/hardware/rockchip/camera/etc/camera_etc.mk b/hardware/rockchip/camera/etc/camera_etc.mk
index ee01d12646..30328325bd 100755
--- a/hardware/rockchip/camera/etc/camera_etc.mk
+++ b/hardware/rockchip/camera/etc/camera_etc.mk
@@ -9,11 +9,13 @@ ifeq ($(filter box atv vr stbvr, $(strip $(TARGET_BOARD_PLATFORM_PRODUCT))), )
ifeq (1,$(strip $(shell expr $(PLATFORM_SDK_VERSION) \>= 26)))
PRODUCT_COPY_FILES += \
$(CUR_PATH)/camera/camera3_profiles_$(TARGET_BOARD_PLATFORM).xml:$(TARGET_COPY_OUT_VENDOR)/etc/camera/camera3_profiles.xml \
+ $(call find-copy-subdir-files,*,$(CUR_PATH)/camera/rkisp1/,$(TARGET_COPY_OUT_VENDOR)/etc/camera/rkisp1/) \
#$(call find-copy-subdir-files,*,$(CUR_PATH)/firmware,$(TARGET_COPY_OUT_VENDOR)/firmware) \
#$(call find-copy-subdir-files,*,$(CUR_PATH)/camera,$(TARGET_COPY_OUT_VENDOR)/etc/camera)
else
PRODUCT_COPY_FILES += \
$(CUR_PATH)/camera/camera3_profiles_$(TARGET_BOARD_PLATFORM).xml:$(TARGET_COPY_OUT_SYSTEM)/etc/camera/camera3_profiles.xml \
+ $(call find-copy-subdir-files,*,$(CUR_PATH)/camera/rkisp1/,$(TARGET_COPY_OUT_VENDOR)/etc/camera/rkisp1/) \
$(call find-copy-subdir-files,*,$(CUR_PATH)/firmware,$(TARGET_COPY_OUT_SYSTEM)/etc/firmware) \
$(call find-copy-subdir-files,*,$(CUR_PATH)/camera,$(TARGET_COPY_OUT_SYSTEM)/etc/camera) \
$(call find-copy-subdir-files,*,$(CUR_PATH)/tools,$(TARGET_COPY_OUT_SYSTEM)/bin)
diff --git a/kernel/arch/arm64/boot/dts/rockchip/rk3399-android.dtsi b/kernel/arch/arm64/boot/dts/rockchip/rk3399-android.dtsi
index 450c677864..9062188ed2 100644
--- a/kernel/arch/arm64/boot/dts/rockchip/rk3399-android.dtsi
+++ b/kernel/arch/arm64/boot/dts/rockchip/rk3399-android.dtsi
@@ -335,7 +335,7 @@
cif_clkout: cif-clkout {
rockchip,pins =
/*cif_clkout*/
- <2 RK_PB3 3 &pcfg_pull_none>;
+ <3 RK_PB7 3 &pcfg_pull_none>;
};
isp_dvp_d0d7: isp-dvp-d0d7 {
diff --git a/kernel/arch/arm64/boot/dts/rockchip/rk3399-excavator-sapphire.dtsi b/kernel/arch/arm64/boot/dts/rockchip/rk3399-excavator-sapphire.dtsi
index dd7d5f8952..d697023024 100644
--- a/kernel/arch/arm64/boot/dts/rockchip/rk3399-excavator-sapphire.dtsi
+++ b/kernel/arch/arm64/boot/dts/rockchip/rk3399-excavator-sapphire.dtsi
@@ -303,26 +303,6 @@
};
};
-&i2c4 {
- status = "disabled";
- i2c-scl-rising-time-ns = <600>;
- i2c-scl-falling-time-ns = <20>;
-
- mpu6500@68 {
- status = "disabled";
- compatible = "invensense,mpu6500";
- reg = <0x68>;
- irq-gpio = <&gpio1 22 IRQ_TYPE_EDGE_RISING>;
- mpu-int_config = <0x10>;
- mpu-level_shifter = <0>;
- mpu-orientation = <0 1 0 1 0 0 0 0 1>;
- orientation-x= <1>;
- orientation-y= <0>;
- orientation-z= <0>;
- mpu-debug = <1>;
- };
-};
-
&i2c7 {
status = "okay";
rtc@51 {
diff --git a/kernel/arch/arm64/boot/dts/rockchip/rk3399-sapphire-excavator-edp.dtsi b/kernel/arch/arm64/boot/dts/rockchip/rk3399-sapphire-excavator-edp.dtsi
index 83b7560801..da84220e47 100644
--- a/kernel/arch/arm64/boot/dts/rockchip/rk3399-sapphire-excavator-edp.dtsi
+++ b/kernel/arch/arm64/boot/dts/rockchip/rk3399-sapphire-excavator-edp.dtsi
@@ -50,7 +50,7 @@
vcc_lcd: vcc-lcd {
compatible = "regulator-fixed";
regulator-name = "vcc_lcd";
- gpio = <&gpio2 26 GPIO_ACTIVE_HIGH>;
+ //gpio = <&gpio2 26 GPIO_ACTIVE_HIGH>;
startup-delay-us = <20000>;
enable-active-high;
regulator-min-microvolt = <3300000>;
@@ -423,15 +423,15 @@
&isp1_mmu {
- status = "disabled";
+ status = "okay"; // isp 驱动使用了 iommu，所以 isp iommu 也需要打开
};
@@ -451,16 +451,45 @@
&mipi_dphy_tx1rx1 {
- status = "disabled";
+ status = "okay";
+
+ ports {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ port@0 {
+ reg = <0>;
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ mipi_in_ucam0: endpoint@1 {
+ reg = <1>;
+ remote-endpoint = <&ucam_out0>; // sensor 端的 port 名
+ data-lanes = <1 2 3 4>;
+ };
+ };
+
+ port@1 {
+ reg = <1>;
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ dphy_tx1rx1_out: endpoint@0 {
+ reg = <0>;
+ remote-endpoint = <&isp1_mipi_in>;
+ };
+ };
+ };
};
&vopb {
@@ -484,19 +513,31 @@
&rkisp1_1 {
- status = "disabled";
+ status = "okay";
+
+ port {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ isp1_mipi_in: endpoint@0 {
+ reg = <0>;
+ remote-endpoint = <&dphy_tx1rx1_out>; // mipi dphy 端的 port 名
+ };
+ };
};
&pinctrl {
diff --git a/kernel/arch/arm64/boot/dts/rockchip/rk3399-sapphire.dtsi b/kernel/arch/arm64/boot/dts/rockchip/rk3399-sapphire.dtsi
index 5b36e3c56d..ee56830ab5 100644
--- a/kernel/arch/arm64/boot/dts/rockchip/rk3399-sapphire.dtsi
+++ b/kernel/arch/arm64/boot/dts/rockchip/rk3399-sapphire.dtsi
@@ -555,7 +555,7 @@
};
&i2c4 {
- status = "disabled";
+ status = "okay";
i2c-scl-rising-time-ns = <475>;
i2c-scl-falling-time-ns = <26>;
@@ -568,6 +568,33 @@
vbus-5v-gpios = <&gpio1 3 GPIO_ACTIVE_HIGH>;
status = "disabled";
};
+
+ ov13850: ov13850@10 {
+ compatible = "ovti,ov13850";
+ status = "okay";
+ reg = <0x10>;
+ clocks = <&cru SCLK_CIF_OUT>;
+ clock-names = "xvclk";
+
+ /* conflict with csi-ctl-gpios */
+ reset-gpios = <&gpio2 RK_PD2 GPIO_ACTIVE_HIGH>;
+ pwdn-gpios = <&gpio1 RK_PC7 GPIO_ACTIVE_HIGH>;
+ pinctrl-names = "rockchip,camera_default";
+ pinctrl-0 = <&cif_clkout>; // pinctl 设置
+
+ rockchip,camera-module-index = <1>; // 模组编号，该编号不要重复，因为xml文件中的moduleId="m01"，所有设置1
+ rockchip,camera-module-facing = "front"; // 模组朝向，有"back"和"front"
+ rockchip,camera-module-name = "CMK-CT0116"; // 模组名
+ rockchip,camera-module-lens-name = "Largan-50013A1"; // lens 名
+ // 模组名和 lens 名被用来和 IQ xml 文件做匹配，使用的是hardware\rockchip\camera\etc\camera\rkisp1\ov13850_CMK-CT0116_Largan-50013A1.xml文件
+ //lens-focus = <&vm149c>; // vcm 驱动设置，支持 AF 时需要有这个设置
+ port {
+ ucam_out0: endpoint {
+ remote-endpoint = <&mipi_in_ucam0>; // mipi dphy 端的 port 名
+ data-lanes = <1 2 3 4>; // mipi lane 数
+ };
+ };
+ };
};
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