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53 lines
1.2 KiB
C
53 lines
1.2 KiB
C
/*
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* SPDX-FileCopyrightText: 2017-2018 Bas Stottelaar <basstottelaar@gmail.com>
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* SPDX-License-Identifier: LGPL-2.1-only
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*/
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/**
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* @ingroup cpu_efm32
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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 the power management peripheral
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*
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* @author Bas Stottelaar <basstottelaar@gmail.com>
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* @}
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*/
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#include "periph/pm.h"
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#include "em_emu.h"
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#define ENABLE_DEBUG 0
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#include "debug.h"
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void pm_set(unsigned mode)
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{
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switch (mode) {
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case EFM32_PM_MODE_EM3:
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DEBUG_PUTS("[pm] enter EFM32_PM_MODE_EM3");
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/* after exiting EM3, clocks are restored */
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EMU_EnterEM3(true);
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break;
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case EFM32_PM_MODE_EM2:
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DEBUG_PUTS("[pm] enter EFM32_PM_MODE_EM2");
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/* after exiting EM2, clocks are restored */
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EMU_EnterEM2(true);
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break;
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case EFM32_PM_MODE_EM1:
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DEBUG_PUTS("[pm] enter EFM32_PM_MODE_EM1");
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/* wait for next event or interrupt */
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EMU_EnterEM1();
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break;
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default:
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/* no sleep at all */
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break;
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}
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}
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void pm_off(void)
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{
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EMU_EnterEM4();
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}
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