16. 感測器

MTK_SENSOR_SUPPORT= yes

CUSTOM_KERNEL_ACCELEROMETER= auto//重力加速度感測器

CUSTOM_KERNEL_MAGNETOMETER=akm8975//磁力感應器//

CUSTOM_KERNEL_ALSPS= tmd2771//光感距離感測器

CUSTOM_KERNEL_BAROMETER=//氣壓計

CUSTOM_KERNEL_GYROSCOPE=//陀螺儀

16.1  重力加速度感測器（G-sensor感應器）

CUSTOM_KERNEL_ACCELEROMETER= auto//感測器

#ifdefined(MTK_AUTO_DETECT_ACCELEROMETER)

\mediatek\source\kernel\drivers\hwmon\hwmsen\Hwmsen_dev.c

inthwmsen_gsensor_add(struct sensor_init_info* obj)

\mediatek\custom\common\kernel\accelerometer\auto\

重力感測方向設定：

\alps\mediatek\custom\\kernel\accelerometer\mc3210\cust_acc.c

static structacc_hw cust_acc_hw = {

    .i2c_num = 2,

    .direction = 5,   // modify//

16.2 ALS\PS 光感距離感測器

CUSTOM_KERNEL_ALSPS= tmd2771

mediatek\custom\common\kernel\alsps\tmd2771\tmd2771.c

mediatek\custom\common\kernel\alsps\tmd2771\tmd2771.h

mediatek\custom\prj\kernel\alsps\tmd2771\cust_alsps.c

16.3 GYRO-sensormotion sensor 陀螺儀

CUSTOM_KERNEL_GYROSCOPE= l3g4200d

mediatek\custom\common\kernel\gyroscope\l3g4200d\l3g4200d.c

mediatek\custom\prj\kernel\gyroscope\l3g4200d\cust_gyro.c

16.4 BAROMETER-sensor氣壓計

CUSTOM_KERNEL_BAROMETER= ms5607

mediatek\custom\prj\kernel\barometer\ms5607\cust_baro.c

mediatek\custom\common\kernel\barometer\ms5607\ms5607.c

16.5 MAGNETOMETER 磁感應器

\alps\mediatek\custom\\kernel\magnetometer\yamaha532\cust_mag.c

磁感應方向設定：

static structmag_hw cust_mag_hw = {

    .i2c_num = 2,

    .direction = 3,//磁感應方向//參照規格書

    .power_id = MT65XX_POWER_NONE,  /*!< LDO is not used */

    .power_vol= VOL_DEFAULT,        /*!< LDO is not used */

};

16.6 compass 指南針

CUSTOM_KERNEL_MAGNETOMETER= akm8975

mediatek\custom\common\kernel\magnetometer\akm8975\akm8975.c

mediatek\custom\konka73_gb\kernel\magnetometer\akm8975\cust_mag.c

17.     震動馬達

CUSTOM_KERNEL_VIBRATOR=vibrator

a.馬達震動幅度(MT6582及其他最新平臺)：

..\mediatek\custom\\kernel\vibrator\cust_vibrator.c

static structvibrator_hw cust_vibrator_hw = {

         .vib_timer = 80,//30,         //振動時長

         .vib_limit = 9,//振動??

         .vib_vol = 0x5, //2.8V for vibr  //  :0x5//振動電壓

};

b.馬達震動幅度MT6577直接修改pmic驅動電壓：

此檔案可以修改各個gpio驅動電壓:

\alps\mediatek\platform\mt6577\lk\mt_pmic.c

void PMIC_CUSTOM_SETTING_V1(void){}

ret=pmic_config_interface(BANK0_DIGLDO_CON33,0x3,

BANK_0_RG_VIBR_VOSEL_MASK,BANK_0_RG_VIBR_VOSEL_SHIFT);//0x4