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bugfix: fix wakeup failed if powerdown flash in lightsleep

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This commit is contained in:
wuzhenghui 2023-05-31 19:11:23 +08:00
parent fd5e03b221
commit 2566e78e03
1 changed files with 14 additions and 9 deletions
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23
components/esp_hw_support/sleep_modes.c
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@ -297,8 +297,12 @@ static void IRAM_ATTR flush_uarts(void)
}
}
static void IRAM_ATTR suspend_uarts(void)
/**
* Suspend enabled uarts and return suspended uarts bit map
*/
static uint32_t IRAM_ATTR suspend_uarts(void)
{
uint32_t suspended_uarts_bmap = 0;
for (int i = 0; i < SOC_UART_NUM; ++i) {
#ifndef CONFIG_IDF_TARGET_ESP32
if (!periph_ll_periph_enabled(PERIPH_UART0_MODULE + i)) {
@ -306,6 +310,7 @@ static void IRAM_ATTR suspend_uarts(void)
}
#endif
uart_ll_force_xoff(i);
suspended_uarts_bmap |= BIT(i);
#if SOC_UART_SUPPORT_FSM_TX_WAIT_SEND
uint32_t uart_fsm = 0;
do {
@ -315,17 +320,16 @@ static void IRAM_ATTR suspend_uarts(void)
while (uart_ll_get_fsm_status(i) != 0) {}
#endif
}
return suspended_uarts_bmap;
}
static void IRAM_ATTR resume_uarts(void)
static void IRAM_ATTR resume_uarts(uint32_t uarts_resume_bmap)
{
for (int i = 0; i < SOC_UART_NUM; ++i) {
#ifndef CONFIG_IDF_TARGET_ESP32
if (!periph_ll_periph_enabled(PERIPH_UART0_MODULE + i)) {
continue;
if (uarts_resume_bmap & 0x1) {
uart_ll_force_xon(i);
}
#endif
uart_ll_force_xon(i);
uarts_resume_bmap >>= 1;
}
}
@ -375,11 +379,12 @@ static uint32_t IRAM_ATTR esp_sleep_start(uint32_t pd_flags)
// For light sleep, suspend UART output — it will resume after wakeup.
// For deep sleep, wait for the contents of UART FIFO to be sent.
bool deep_sleep = pd_flags & RTC_SLEEP_PD_DIG;
uint32_t suspended_uarts_bmap = 0;
if (deep_sleep) {
flush_uarts();
} else {
suspend_uarts();
suspended_uarts_bmap = suspend_uarts();
}
#if SOC_RTC_SLOW_CLOCK_SUPPORT_8MD256
@ -560,7 +565,7 @@ static uint32_t IRAM_ATTR esp_sleep_start(uint32_t pd_flags)
}
// re-enable UART output
resume_uarts();
resume_uarts(suspended_uarts_bmap);
return result;
}