am startservice -n com.xbh.distributor.menu/.app.TvMenuWindowManagerService -e com.xbh.distributor.menu.commmand com.xbh.distributor.menu.commmand.factory_menu\n
9c:f6:dd:b1:71:8c
source Customer/build.sh Customer/customer/lango/LANGO_001_XMH811B_4096M_32G.cus
repo forall -c 'git branch -v'
XBHV811:/ # echo read 5 3 > /proc/msp/gpio
[ 610.180579] Value [5][3] = low
XBHV811:/ # echo read 5 2 > /proc/msp/gpio
[ 611.331131] Value [5][2] = high
【rtc驱动适配】
(1)修改内核配置文件，编译rtc模块（rtc-hym8563）驱动
Z:\workSpace\XBHV811\Customer\toolchains\board\XMH811B\hi3751v810_arm64_android_defconfig
# CONFIG_RTC_DRV_HYM8563 is not set 改为：CONFIG_RTC_DRV_HYM8563=m
(2)添加i2c总线驱动程序
Z:\workSpace\XBHV811\device\hisilicon\bigfish\sdk\source\msp\drv\i2cbus
并修改Z:\workSpace\XBHV811\device\hisilicon\bigfish\sdk\source\msp\drv\Makefile : objects += i2cbus
(3)修改dtsi，增加对应平台设备信息 ： Z:\workSpace\XBHV811\device\hisilicon\bigfish\sdk\source\kernel\linux-4.9.y\arch\arm64\boot\dts\hisilicon\hi3751v81x.dtsi
增加i2c端口------------------------------------------------------------
//xbh patch start by gerhard.lao
i2c0: i2c@f8b10000 {
compatible = "hisilicon,hisilicon-i2c";
bus_num = <0>;
status = "okay";
};
i2c1: i2c@f8b11000 {
compatible = "hisilicon,hisilicon-i2c";
bus_num = <1>;
status = "okay";
};
i2c2: i2c@f8b12000 {
compatible = "hisilicon,hisilicon-i2c";
bus_num = <2>;
status = "okay";
};
i2c3: i2c@f8b13000 {
compatible = "hisilicon,hisilicon-i2c";
bus_num = <3>;
status = "okay";
};
i2c4: i2c@f8b1d000 {
compatible = "hisilicon,hisilicon-i2c";
bus_num = <4>;
status = "okay";
hym8563: hym8563@a3 {
compatible = "haoyu,hym8563";
reg = <0xa3>;
};
};
//xbh patch end
（4）
./Customer/compile.sh kernel （建议先rm -rf out/target/product/Hi3751V811/obj/KERNEL_OBJ/）,生成kernel.img和dtb在 Z:\workSpace\XBHV811\out\target\product\Hi3751V811\Emmc目录下，烧录指令如下：
dd if=/mnt/media_rw/sda4/kernel.img of=/dev/block/platform/soc/f9830000.emmc/by-name/kernel
dd if=/mnt/media_rw/sda4/Hi3751V811.dtb of=/dev/block/platform/soc/f9830000.emmc/by-name/dtb
可参考：https://blog.csdn.net/zhangweihui123/article/details/78581847
调试指令：
logcat -v time -b kernel | grep -ie hisilicon_i2c_probe -ie hym8563
logcat -v time | grep -ie AlarmManager
adb shell "busybox hwclock -r"
adb shell "insmod /vendor/lib64/modules/rtc-hym8563.ko"
app->kernel调用流程：
app方法：AlarmManager am = (AlarmManager) context.getSystemService(Context.ALARM_SERVICE);
Z:\workSpace\XBHV811\frameworks\base\core\java\android\app\AlarmManager.java
---》public void setTime(long millis)
Z:\workSpace\XBHV811\frameworks\base\services\core\java\com\android\server\AlarmManagerService.java
Z:\workSpace\XBHV811\frameworks\base\services\core\jni\com_android_server_AlarmManagerService.cpp
---》android_server_AlarmManagerService_setKernelTime
---》int AlarmImpl::setTime(struct timeval *tv)
---》res = ioctl(fd, RTC_SET_TIME, &rtc);
Z:\workSpace\XBHV811\device\hisilicon\bigfish\sdk\source\kernel\linux-4.9.y\drivers\rtc\rtc-dev.c ---》rtc_dev_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
Z:\workSpace\XBHV811\device\hisilicon\bigfish\sdk\source\kernel\linux-4.9.y\drivers\rtc\rtc-hym8563.c
服务启动过程：
Z:\workSpace\XBHV811\frameworks\base\services\java\com\android\server\SystemServer.java
---》mSystemServiceManager.startService(AlarmManagerService.class);
Z:\workSpace\XBHV811\frameworks\base\services\core\java\com\android\server\AlarmManagerService.java
---》 onStart()
---》init()
Z:\workSpace\XBHV811\frameworks\base\services\core\jni\com_android_server_AlarmManagerService.cpp
---》
static const JNINativeMethod sMethods[] = {
/* name, signature, funcPtr */
{"init", "()J", (void*)android_server_AlarmManagerService_init},
{"close", "(J)V", (void*)android_server_AlarmManagerService_close},
{"set", "(JIJJ)V", (void*)android_server_AlarmManagerService_set},
{"waitForAlarm", "(J)I", (void*)android_server_AlarmManagerService_waitForAlarm},
{"setKernelTime", "(JJ)I", (void*)android_server_AlarmManagerService_setKernelTime},
{"setKernelTimezone", "(JI)I", (void*)android_server_AlarmManagerService_setKernelTimezone},
};
RTC相关接口
HY8563 RTC模块
读取RTC时间：
||i2c_channel device_addr register_addr register_addr_len read_bytes_number
i2c_read 0x04 0xa3 0x02 0x01 0x07
data read:
0x10 0x51 0x04 0x14 0x12 0x06 0x48
second: 0x10
minute: 0x51
hour: 0x04
date: 0x14
week: 0x12 & 0x07
month: 0x06
year: 0x48 + 1970
写入RTC时间：
i2c_write 0x04 0xa3 0x02 0x01 0x07 0x10 0x51 0x04 0x14 0x12 0x06 0x48
读RTC定时开关：
i2c_read 0x04 0xa3 0x01 0x01 0x01
data read:
0x02
bit1为1时启动，为0时关闭
写入RTC定时开关
i2c_write 0x04 0xa3 0x01 0x01 0x01 0x00
写入RTC定时时间
i2c_write 0x04 0xa3 0x09 0x01 0x04 0x51 0x04 0x14 0x02
测试RTC唤醒命令：
i2c_write 0x04 0xa3 0x01 0x01 0x01 0x02
i2c_write 0x04 0xa3 0x02 0x01 0x07 0x50 0x51 0x04 0x14 0x12 0x06 0x48
i2c_write 0x04 0xa3 0x09 0x01 0x04 0x52 0x04 0x14 0x02
i2c_read 0x04 0xa3 0x02 0x01 0x07
查看RTC中断IO有没有电平，HY8563的中断脚应被设置为低电平。
打开24V检测
i2c_write 0x01 0x4C 0x80 0x01 0x04 0x03 0x23 0x01 0xA1
关闭24V检测
i2c_write 0x01 0x4C 0x80 0x01 0x04 0x03 0x23 0x00 0xA0
打开所有检测
i2c_write 0x01 0x4C 0x80 0x01 0x04 0x03 0xFF 0x01 0x7D
关闭所有检测
i2c_write 0x01 0x4C 0x80 0x01 0x04 0x03 0xFF 0x00 0x7C
echo write 5 3 0 > /proc/msp/gpio
echo write 5 2 1 > /proc/msp/gpio
echo write 5 3 0 > /proc/msp/gpio
echo write 5 2 0 > /proc/msp/gpio