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/*
* Copyright (c) 2019 Winner Microelectronics Co., Ltd.
*
* SPDX-License-Identifier: Apache-2.0
*
* Change Logs:
* Date Author Notes
* 2019-03-13 tyx first version
*/
#include <rthw.h>
#include <rtthread.h>
#include <rtdevice.h>
#include "drv_standby.h"
#ifdef BSP_USING_STANDBY
#include "wm_type_def.h"
#include "wm_cpu.h"
#include "wm_pmu.h"
#include "wm_irq.h"
#include "wm_regs.h"
typedef volatile unsigned long vu32;
#define M32(adr) (*((vu32*) (adr)))
typedef void (*rom_standby_func)(void);
static const rom_standby_func pm_standby = (rom_standby_func)0x499;
#ifdef __ICCARM__
extern void standby_idr(void);
#endif
#if (1 == GCC_COMPILE)
void wm_pm_standby(void)
{
__asm volatile (
" cpsid i \n" /* disable irq*/
" dsb \n"
" ldr r0, =0X499 \n"
" bx r0 \n"
" movs r0, #0x00 \n"
" isb \n"
);
}
#endif
/**
* This function will put w60x into run/shutdown mode.
*
* @param timeout How many OS Ticks that MCU can sleep
*/
void sys_start_standby(int ms)
{
rt_uint32_t val;
int timeout = ms;
RT_ASSERT(timeout > 0);
tls_pmu_clk_select(0);
if (timeout <= 65535)
{
/* Enter PM_TIMER_MODE */
tls_irq_enable(PMU_TIMER1_INT);
tls_pmu_timer1_stop();
tls_pmu_timer1_start(timeout);
}
else if(timeout <= 65535000)
{
timeout /= 1000;
tls_irq_enable(PMU_TIMER0_INT);
tls_pmu_timer0_stop();
tls_pmu_timer0_start(timeout);
}
else
{
return;
}
tls_irq_enable(PMU_GPIO_WAKEUP_INT); //Open interrupt by default to clear the interrupt flag for IO wake-up
val = tls_reg_read32(HR_PMU_PS_CR);
val |= 0x01;
tls_reg_write32(HR_PMU_PS_CR, val);
}
#ifdef RT_USING_FINSH
#include <finsh.h>
#include <stdlib.h>
static void standby(uint8_t argc, char **argv)
{
if (argc != 2)
{
rt_kprintf("Usage: standby timeout(ms)\n");
rt_kprintf("eg : standby 5000\n");
}
else
{
sys_start_standby(atoi(argv[1]));
}
}
MSH_CMD_EXPORT(standby, sleep system);
#endif /* RT_USING_FINSH */
#endif /* BSP_USING_STANDBY */
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