15ea6feeaf
Now, where the vendor files for light/deep sleep mode are added, function `pm_off` does not need to implement this mode by itself. Instead the existing deep sleep with disabled wakeup sources is used for pm_off.
68 lines
1.4 KiB
C
68 lines
1.4 KiB
C
/*
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* Copyright (C) 2018 Gunar Schorcht
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*
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* This file is subject to the terms and conditions of the GNU Lesser
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* General Public License v2.1. See the file LICENSE in the top level
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* directory for more details.
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*/
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/**
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* @ingroup cpu_esp32
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* @ingroup drivers_periph_pm
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* @{
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*
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* @file
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* @brief Implementation of power management functions
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*
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* @author Gunar Schorcht <gunar@schorcht.net>
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* @}
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*/
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#define ENABLE_DEBUG (0)
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#include "debug.h"
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#include "esp_attr.h"
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#include "esp_sleep.h"
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#include "syscalls.h"
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#include "rom/rtc.h"
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#include "rom/uart.h"
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#include "soc/rtc.h"
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#include "soc/rtc_cntl_reg.h"
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void pm_set_lowest(void)
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{
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DEBUG ("%s enter to sleep @%u\n", __func__, system_get_time());
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#if !defined(QEMU)
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/* passive wait for interrupt to leave lowest power mode */
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__asm__ volatile ("waiti 0");
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/* reset system watchdog timer */
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system_wdt_feed();
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#endif
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DEBUG ("%s exit from sleep @%u\n", __func__, system_get_time());
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}
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void IRAM_ATTR pm_off(void)
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{
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/* enter hibernate mode without any enabled wake-up sources */
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esp_deep_sleep_start();
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}
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extern void esp_restart_noos(void) __attribute__ ((noreturn));
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void pm_reboot(void)
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{
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DEBUG ("%s\n", __func__);
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/* suspend and flush UARTs */
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for (int i = 0; i < 3; ++i) {
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REG_SET_BIT(UART_FLOW_CONF_REG(i), UART_FORCE_XOFF);
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uart_tx_wait_idle(i);
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}
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software_reset();
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}
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