RK3568关于定时开关机测试方法

ti

版型

补丁
附件是以rk808为例实现的，使用rk809思路是一样的：
1.在底层做一个独立的alarm接口（本patch中是提供的接口为rk808_rtc_setalarm_pwron），上层设定开机时间；
2.上层设置的时间会调到该接口，然后保存开机时间；
3.等到真正关机时，在关机函数里将rtc/alarm中断全部打开，并将开机时间写进alarm寄存器；
4.一旦到达设定的时间，rtc通过唤醒pmu达到给整个系统上电的效果；
5.定时关机的功能比较简单，自己根据需求调用关机函数即可，不在赘述；
附件是以4.4kernel的rk808为例实现的，上层只需通过ioctl方法往接口里写入开机时间，
具体的应用程序可以参考“测试应用程序”，如有问题记得用串口抓完整的关机log；

--- a/drivers/mfd/rk808.c
+++ b/drivers/mfd/rk808.c
@@ -61,7 +61,7 @@ static struct mfd_cell rk808s[] = {
#define VOL_MIN_IDX 0x00
#define VOL_MAX_IDX 0x3f
-
+static int getalarm[6];
const static int buck_set_vol_base_addr[] = {
RK808_BUCK1_ON_REG,
RK808_BUCK2_ON_REG,
@@ -1017,6 +1017,31 @@ static ssize_t rk808_test_show(struct kobject *kobj, struct kobj_attribute *attr
}
+static ssize_t rk808_alarm_store(struct kobject *kobj, struct kobj_attribute *attr,
+ const char *buf, size_t n)
+{
+ char cmd;
+ const char *buftmp = buf;
+
+ sscanf(buftmp, "%x%c%x%c%x%c%x%c%x%c%x", &getalarm[5],&cmd,&getalarm[4],&cmd,&getalarm[3],
+ &cmd,&getalarm[2],&cmd,&getalarm[1],&cmd,&getalarm[0]);
+ printk("xiong: get year = %xn", getalarm[5]);
+ printk("xiong: get mon = %xn", getalarm[4]);
+ printk("xiong: get day = %xn", getalarm[3]);
+ printk("xiong: get hour = %xn", getalarm[2]);
+ printk("xiong: get min = %xn", getalarm[1]);
+ printk("xiong: get sec = %xn", getalarm[0]);
+ return n;
+
+}
+
+static ssize_t rk808_alarm_show(struct kobject *kobj, struct kobj_attribute *attr,
+ char *buf)
+{
+ return sprintf(buf, "%x%c%x%c%x%c%x%c%x%c%xn", getalarm[5], '_', getalarm[4], '_', getalarm[3],
+ '_', getalarm[2], '_', getalarm[1], '_', getalarm[0]);
+}
+
static struct kobject *rk808_kobj;
struct rk808_attribute {
struct attribute attr;
@@ -1029,6 +1054,7 @@ struct rk808_attribute {
static struct rk808_attribute rk808_attrs[] = {
/* node_name permision show_func store_func */
__ATTR(rk808_test, S_IRUGO | S_IWUSR, rk808_test_show, rk808_test_store),
+ __ATTR(rk808_alarm, S_IRUGO | S_IWUSR, rk808_alarm_show, rk808_alarm_store),
};
#endif
#if 0
@@ -1141,8 +1167,10 @@ static void rk808_shutdown(void)
printk("%s,line=%d dc[%d]= %dn", __func__,__LINE__,(i+1),val);
}
/*****************************************************/
- ret = rk808_set_bits(rk808, RK808_INT_STS_MSK_REG1,(0x3<<5),(0x3<<5)); //close rtc int when power off
- ret = rk808_clear_bits(rk808, RK808_RTC_INT_REG,(0x3<<2)); //close rtc int when power off
+ //ret = rk808_set_bits(rk808, RK808_INT_STS_MSK_REG1,(0x3<<5),(0x3<<5)); //close rtc int when power off
+ //ret = rk808_clear_bits(rk808, RK808_RTC_INT_REG,(0x3<<2)); //close rtc int when power off
+ ret = rk808_clear_bits(rk808, RK808_INT_STS_MSK_REG1,(0x3<<5)); //open rtc int when power on
+ ret = rk808_set_bits(rk808, RK808_RTC_INT_REG,(0x1<<3),(0x1<<3)); //open rtc int when power on
mutex_lock(&rk808->io_lock);
mdelay(100);
}
@@ -1153,9 +1181,23 @@ static struct syscore_ops rk808_syscore_ops = {
static void rk808_device_shutdown(void)
{
- int ret,i;
+ int ret,i,j;
u8 reg = 0;
struct rk808 *rk808 = g_rk808;
+
+ for(j=0x0d; j>=0x08; j--)
+ {
+ ret = rk808_i2c_write(rk808, j, 1,getalarm[j-8]);
+ if (ret <0)
+ printk("write alarm reg error!n");
+ }
+ for (j = 0; j < 0x13; j++)
+ {
+ ret=rk808_i2c_read(rk808,j,1,®);
+ if (ret <0)
+ printk("read rtc & alarm reg error!n");
+ printk("reg[0x%x]:%xn",j,reg);
+ }
for(i=0;i < 10;i++){
printk("%sn",__func__);
ret = rk808_i2c_read(rk808,RK808_DEVCTRL_REG,1,®);
@@ -1169,6 +1211,7 @@ static void rk808_device_shutdown(void)
}
while(1)wfi();
}
+
EXPORT_SYMBOL_GPL(rk808_device_shutdown);
__weak void rk808_device_suspend(void) {}