2019-03-27 16:49:26 +08:00
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/*
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2019-03-29 10:50:01 +08:00
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* Copyright (c) 2019 Winner Microelectronics Co., Ltd.
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2019-03-27 16:49:26 +08:00
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*
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* SPDX-License-Identifier: Apache-2.0
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*
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* Change Logs:
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* Date Author Notes
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* 2019-03-13 tyx first version
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*/
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#include <rthw.h>
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#include <rtthread.h>
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#include <rtdevice.h>
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#include "drv_standby.h"
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#ifdef BSP_USING_STANDBY
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#include "wm_type_def.h"
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#include "wm_cpu.h"
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#include "wm_pmu.h"
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#include "wm_irq.h"
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#include "wm_regs.h"
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typedef volatile unsigned long vu32;
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#define M32(adr) (*((vu32*) (adr)))
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typedef void (*rom_standby_func)(void);
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static const rom_standby_func pm_standby = (rom_standby_func)0x499;
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#ifdef __ICCARM__
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extern void standby_idr(void);
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#endif
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#if (1 == GCC_COMPILE)
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void wm_pm_standby(void)
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{
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__asm volatile (
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" cpsid i \n" /* disable irq*/
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" dsb \n"
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" ldr r0, =0X499 \n"
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" bx r0 \n"
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" movs r0, #0x00 \n"
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" isb \n"
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);
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}
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#endif
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/**
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* This function will put w60x into run/shutdown mode.
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*
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* @param timeout How many OS Ticks that MCU can sleep
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*/
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void sys_start_standby(int ms)
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{
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rt_uint32_t val;
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int timeout = ms;
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RT_ASSERT(timeout > 0);
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tls_pmu_clk_select(0);
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if (timeout <= 65535)
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{
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/* Enter PM_TIMER_MODE */
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tls_irq_enable(PMU_TIMER1_INT);
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tls_pmu_timer1_stop();
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tls_pmu_timer1_start(timeout);
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}
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else if(timeout <= 65535000)
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{
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timeout /= 1000;
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tls_irq_enable(PMU_TIMER0_INT);
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tls_pmu_timer0_stop();
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tls_pmu_timer0_start(timeout);
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}
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else
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{
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return;
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}
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tls_irq_enable(PMU_GPIO_WAKEUP_INT); //Open interrupt by default to clear the interrupt flag for IO wake-up
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val = tls_reg_read32(HR_PMU_PS_CR);
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val |= 0x01;
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tls_reg_write32(HR_PMU_PS_CR, val);
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}
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#ifdef RT_USING_FINSH
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#include <finsh.h>
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#include <stdlib.h>
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static void standby(uint8_t argc, char **argv)
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{
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if (argc != 2)
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{
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rt_kprintf("Usage: standby timeout(ms)\n");
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rt_kprintf("eg : standby 5000\n");
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}
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else
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{
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sys_start_standby(atoi(argv[1]));
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}
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}
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FINSH_FUNCTION_EXPORT_ALIAS(standby, __cmd_standby, sleep System);
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#endif /* RT_USING_FINSH */
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#endif /* BSP_USING_STANDBY */
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