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deep sleep: add empty interface rtc_deep_sleep_start for esp32c3

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Li Shuai
2021-01-14 14:32:31 +08:00
parent 27ddbf5fcc
commit 3170ecf268
2 changed files with 29 additions and 0 deletions
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23
components/soc/esp32c3/include/soc/rtc.h
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@@ -758,6 +758,29 @@ void rtc_sleep_set_wakeup_time(uint64_t t);
*/
uint32_t rtc_sleep_start(uint32_t wakeup_opt, uint32_t reject_opt, uint32_t lslp_mem_inf_fpu);
/**
* @brief Enter deep sleep mode
*
* Similar to rtc_sleep_start(), but additionally uses hardware to calculate the CRC value
* of RTC FAST memory. On wake, this CRC is used to determine if a deep sleep wake
* stub is valid to execute (if a wake address is set).
*
* No RAM is accessed while calculating the CRC and going into deep sleep, which makes
* this function safe to use even if the caller's stack is in RTC FAST memory.
*
* @note If no deep sleep wake stub address is set then calling rtc_sleep_start() will
* have the same effect and takes less time as CRC calculation is skipped.
*
* @note This function should only be called after rtc_sleep_init() has been called to
* configure the system for deep sleep.
*
* @param wakeup_opt - same as for rtc_sleep_start
* @param reject_opt - same as for rtc_sleep_start
*
* @return non-zero if sleep was rejected by hardware
*/
uint32_t rtc_deep_sleep_start(uint32_t wakeup_opt, uint32_t reject_opt);
/**
* RTC power and clock control initialization settings
*/