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52 lines
1.2 KiB
C
52 lines
1.2 KiB
C
/*
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* Copyright (C) 2017 Kaspar Schleiser <kaspar@schleiser.de>
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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_saml21
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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 kernels power management interface
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*
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* @author Kaspar Schleiser <kaspar@schleiser.de>
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*
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* @}
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*/
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#include "periph/pm.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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if (mode < PM_NUM_MODES) {
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uint32_t _mode;
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switch (mode) {
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case 0:
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DEBUG("pm_set(): setting STANDBY mode.\n");
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_mode = PM_SLEEPCFG_SLEEPMODE_STANDBY;
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break;
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default: /* Falls through */
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case 1:
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DEBUG("pm_set(): setting IDLE mode.\n");
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_mode = PM_SLEEPCFG_SLEEPMODE_IDLE;
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break;
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}
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/* write sleep configuration */
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PM->SLEEPCFG.bit.SLEEPMODE = _mode;
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/* make sure value has been set */
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while (PM->SLEEPCFG.bit.SLEEPMODE != _mode) {}
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}
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cortexm_sleep(0);
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}
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