rk android11 gsensor 距离感应传感器调试

我使用的是vl的psensor,给的驱动是基于Linux的,先调试通,调过cta得到数据,把数据调试正常,但是这样是在android陈煤化工不会通,找不到sensor,需要走android的框架

1.我是首先不管框架,调试通snesor

2.然后按照一个例子,我使用ps_ap321xx.c,驱动中让他去匹配这个,然后配置proximity_ap321xx_ops结构体里面的成员,按照寄存器,写对应的值,后面读取的时候

struct sensor_operate proximity_ap321xx_ops = {
    .name               = "ps_ap321xx",
    .type               = SENSOR_TYPE_PROXIMITY,    //sensor type and it should be correct
    .id_i2c             = PROXIMITY_ID_AP321XX, //i2c id number
    .read_reg           = 0x14, //read data     //there are two regs, we fix them in code.
    .read_len           = 1,            //data length
    .id_reg             = 0xc0, //read device id from this register   //there are 3 regs, we fix them in code.
    .id_data            = 0xee, //device id -------
    .precision          = 8,            //8 bits
    .ctrl_reg           = AP3212B_MODE_COMMAND,     //enable or disable
    .int_status_reg         = 0x13, //intterupt status register
    .range              = {0,256},      //range
    .brightness                                        ={10,255},                          // brightness
    .trig               = IRQF_TRIGGER_FALLING | IRQF_ONESHOT | IRQF_SHARED,
    .active             = sensor_active,
    .init               = sensor_init,
    .report             = sensor_report_value,
};  

rk的框架在 drivers/input/sensors/psensor/  里面整体的按照那个框架来写 就可以,

会根据这个Id寄存器 读取,然后校验id,我的0xc0寄存器读取的是oxee,所以就会根据这个判断是否正确,才能下面的匹配,这里走完了,正常识别id,就可以上层找到sensor了,至于数据,下面的才做,但是rk要使用框架,还需要配置一下,驱动做完Inpt节点就会有了

 

1.input event 节点生成说明驱动加载成功了。

add device 1: /dev/input/event5
name: "proximity" 

2.psensor 需要正常用起来,BoardConfig.mk 中需要将 BOARD_PROXIMITY_SENSOR_SUPPORT 打开,并且看下你们sdk的 device/rockchip/common 目录是否这个提交,没有的话需要打上附件补丁。

diff --git a/sepolicy/vendor/file_contexts b/sepolicy/vendor/file_contexts
index 0c5830a2..4b186c1f 100644
--- a/sepolicy/vendor/file_contexts
+++ b/sepolicy/vendor/file_contexts
@@ -22,6 +22,11 @@
 /dev/mma8452_daemon  u:object_r:sensor_device:s0
 /dev/compass         u:object_r:sensor_dev:s0
 /dev/gyrosensor      u:object_r:sensor_dev:s0
+/dev/lightsensor     u:object_r:sensor_dev:s0
+/dev/psensor         u:object_r:sensor_dev:s0
+/dev/temperature     u:object_r:sensor_dev:s0
+/dev/pressure        u:object_r:sensor_dev:s0
+/dev/angle           u:object_r:sensor_dev:s0
 /dev/stune(/.*)?     u:object_r:cgroup:s0

 /dev/akm8963_dev        u:object_r:akmd_device:s0

这里正确了,就能找到sensor了,网上随便找一个sensor的app,就可以测试,我下载了sensortest_yxdown.com.apk

dts配置

vl53l0x@29 {  

  compatible = "ps_ap321xx";
  i2c_num = <1>;
  i2c_addr = <0x29 0 0 0>;
  reg = <0x29>;
  pinctrl-names = "default";
  pinctrl-0 = <&vl53l0_irq>;
  //---这里是走rk标准框架 
  type = <SENSOR_TYPE_PROXIMITY>;
  irq_enable = <0>; //0轮询 -- > 1中断
  reprobe_en = <1>;
  irq-gpio = <&gpio3 19 GPIO_ACTIVE_HIGH>;
  power-gpio = <&gpio3 18 GPIO_ACTIVE_HIGH>;
  poll_delay_ms = <200>; //20ms读取一次
  //----
    ////// interrupt-parent = <&vl53l0_irq>;
  status = "okay" ;
  //interrupts = <14 IRQ_TYPE_LEVEL_LOW 14 0>;

}

dts可以配置为使用中断或者轮询方式查询,如果是中断,就是在中断的时候调用sensor_report_value,如果是轮询,会做一个工作队列,轮询调用sensor_report_value

主要框架在drivers/input/sensors/sensor-dev.c中

 

sensor_active:

  -->ready_to_start_config(vl53l0x_data) ;  

      --> stmvl53l0x_start(vl53l0x_data, 3, 0)

 

sensor_init:

  -->stmvl53l0x_setup(vl53l0x_data);

       -->2c_object->power_up = 1 ;

上报函数就是获取得到数据以后,上报就行了,其他sensor 差不多就这样了,如果是在rk列表里面的 那就更简单了

 

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