130 lines
2.8 KiB
C
130 lines
2.8 KiB
C
|
/*
|
||
|
|
* Copyright (C) 2018 Alibaba Group Holding Limited
|
||
|
|
*/
|
||
|
|
|
||
|
|
/*
|
||
|
|
* This file supplied RTC one-shot start/stop services for CPU tickless
|
||
|
|
* module, verifyied on STM32L496-DISCOVERY with C3/C4 mode.
|
||
|
|
* C3: stop mode.
|
||
|
|
* C4: standby mode.
|
||
|
|
*/
|
||
|
|
|
||
|
|
#include "k_api.h"
|
||
|
|
#include "cpu_pwr_config.h"
|
||
|
|
|
||
|
|
//#if (RHINO_CONFIG_CPU_PWR_MGMT > 0)
|
||
|
|
//#if (RHINO_CONFIG_CPU_TICKLESS > 0)
|
||
|
|
|
||
|
|
#include "cpu_tickless.h"
|
||
|
|
#include "drv_rtc.h"
|
||
|
|
#define RTC_ONE_SHOT_DBG
|
||
|
|
|
||
|
|
extern void SystemClock_Config(void);
|
||
|
|
|
||
|
|
#define RTC_WAKEUP_SOURCE_FREQ_2000HZ
|
||
|
|
//#define RTC_WAKEUP_SOURCE_FREQ_1HZ
|
||
|
|
|
||
|
|
/* According reference manual of STM32496G, RTC_WUTR is 16bit */
|
||
|
|
#define RTC_WAKE_UP_RGE_MAX 0xffff
|
||
|
|
//static uint32_t one_shot_enabled = 0;
|
||
|
|
//static uint32_t one_shot_start_value = 0;
|
||
|
|
static uint32_t one_shot_max_period = 0;/* seconds */
|
||
|
|
//static kspinlock_t rtc_spin;
|
||
|
|
//static RTC_HandleTypeDef RtcHandle;
|
||
|
|
#ifdef RTC_ONE_SHOT_DBG
|
||
|
|
//static int rtc_wakeup_irq_count = 0;
|
||
|
|
#endif /* RTC_ONE_SHOT_DBG */
|
||
|
|
|
||
|
|
static kstat_t rtc_init(void);
|
||
|
|
static uint32_t rtc_one_shot_max_seconds(void);
|
||
|
|
static kstat_t rtc_one_shot_start(uint64_t planUs);
|
||
|
|
static kstat_t rtc_one_shot_stop(uint64_t *pPassedUs);
|
||
|
|
|
||
|
|
one_shot_timer_t rtc_one_shot = {
|
||
|
|
rtc_init,
|
||
|
|
rtc_one_shot_max_seconds,
|
||
|
|
rtc_one_shot_start,
|
||
|
|
rtc_one_shot_stop,
|
||
|
|
};
|
||
|
|
|
||
|
|
static uint32_t rtc_one_shot_max_seconds(void)
|
||
|
|
{
|
||
|
|
return one_shot_max_period;
|
||
|
|
}
|
||
|
|
|
||
|
|
static kstat_t rtc_init(void)
|
||
|
|
{
|
||
|
|
|
||
|
|
|
||
|
|
return RHINO_SUCCESS;
|
||
|
|
}
|
||
|
|
|
||
|
|
/*******************************************************************************
|
||
|
|
*
|
||
|
|
* rtc_one_shot_start - enable the timer in oneshot mode
|
||
|
|
*
|
||
|
|
* This function enables the timer in oneshot mode, the interrupt will be fired
|
||
|
|
* after servral microseconds which is indicated by planUs.
|
||
|
|
*
|
||
|
|
* RETURNS: RHINO_SUCCESS or RHINO_PWR_MGMT_ERR if timer is not enabled
|
||
|
|
*
|
||
|
|
* ERRNO
|
||
|
|
*/
|
||
|
|
|
||
|
|
static kstat_t rtc_one_shot_start(uint64_t planUs)
|
||
|
|
{
|
||
|
|
|
||
|
|
|
||
|
|
return RHINO_SUCCESS;
|
||
|
|
}
|
||
|
|
|
||
|
|
/*******************************************************************************
|
||
|
|
*
|
||
|
|
* one_shot_planed_cnt - cancel the timer which was in oneshot mode
|
||
|
|
*
|
||
|
|
* This function is called to cancel the timer which was in oneshot mode.
|
||
|
|
* the time has passed(microseconds) will be return in pPassedUs.
|
||
|
|
*
|
||
|
|
* RETURNS: RHINO_SUCCESS or RHINO_PWR_MGMT_ERR if timer is not disabled
|
||
|
|
*
|
||
|
|
* ERRNO: N/A
|
||
|
|
*/
|
||
|
|
|
||
|
|
static kstat_t rtc_one_shot_stop
|
||
|
|
(
|
||
|
|
uint64_t *pPassedUs /* OUT */
|
||
|
|
)
|
||
|
|
{
|
||
|
|
|
||
|
|
return RHINO_SUCCESS;
|
||
|
|
}
|
||
|
|
|
||
|
|
/*******************************************************************************
|
||
|
|
*
|
||
|
|
* RTC_WKUP_IRQHandler - ISR handle of RTC wakeup interrupt
|
||
|
|
*
|
||
|
|
* This function will replace weak one which is defined in
|
||
|
|
* startup_stm32l496xx_keil.s
|
||
|
|
*
|
||
|
|
* RETURNS: N/A
|
||
|
|
*
|
||
|
|
* ERRNO: N/A
|
||
|
|
*/
|
||
|
|
|
||
|
|
void RTC_WKUP_IRQHandler(void)
|
||
|
|
{
|
||
|
|
|
||
|
|
}
|
||
|
|
|
||
|
|
#ifdef RTC_ONE_SHOT_DBG
|
||
|
|
void rtc_info_show(void)
|
||
|
|
{
|
||
|
|
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
#endif /* RTC_ONE_SHOT_DBG */
|
||
|
|
|
||
|
|
//#endif /* RHINO_CONFIG_CPU_TICKLESS */
|
||
|
|
//#endif /* RHINO_CONFIG_CPU_PWR_MGMT */
|