122 lines
3.4 KiB
C
122 lines
3.4 KiB
C
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/**
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* \file
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*
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* \brief SAM3/SAM4 Sleep manager implementation.
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*
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* Copyright (c) 2012-2016 Atmel Corporation. All rights reserved.
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*
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* \asf_license_start
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*
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* \page License
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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*
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* 1. Redistributions of source code must retain the above copyright notice,
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* this list of conditions and the following disclaimer.
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*
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* 2. Redistributions in binary form must reproduce the above copyright notice,
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* this list of conditions and the following disclaimer in the documentation
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* and/or other materials provided with the distribution.
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*
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* 3. The name of Atmel may not be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*
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* 4. This software may only be redistributed and used in connection with an
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* Atmel microcontroller product.
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*
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* THIS SOFTWARE IS PROVIDED BY ATMEL "AS IS" AND ANY EXPRESS OR IMPLIED
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* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT ARE
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* EXPRESSLY AND SPECIFICALLY DISCLAIMED. IN NO EVENT SHALL ATMEL BE LIABLE FOR
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* ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
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* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
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* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*
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* \asf_license_stop
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*
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*/
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/*
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* Support and FAQ: visit <a href="http://www.atmel.com/design-support/">Atmel Support</a>
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*/
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#ifndef SAM_SLEEPMGR_INCLUDED
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#define SAM_SLEEPMGR_INCLUDED
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#ifdef __cplusplus
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extern "C" {
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#endif
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#include <compiler.h>
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#include <conf_sleepmgr.h>
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#include <sleep.h>
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#include <interrupt.h>
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/**
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* \weakgroup sleepmgr_group
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* @{
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*/
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enum sleepmgr_mode {
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//! Active mode.
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SLEEPMGR_ACTIVE = 0,
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/*! WFE sleep mode.
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* Potential Wake Up sources:
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* fast startup events (USB, RTC, RTT, WKUPs),
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* interrupt, and events. */
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SLEEPMGR_SLEEP_WFE,
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/*! WFI sleep mode.
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* Potential Wake Up sources: fast startup events and interrupt. */
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SLEEPMGR_SLEEP_WFI,
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/*! Wait mode, wakeup fast (in 3ms).
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* XTAL is not disabled when sleep.
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* Potential Wake Up sources: fast startup events */
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SLEEPMGR_WAIT_FAST,
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/*! Wait mode.
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* Potential Wake Up sources: fast startup events */
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SLEEPMGR_WAIT,
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#if (!(SAMG51 || SAMG53 || SAMG54))
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//! Backup mode. Potential Wake Up sources: WKUPs, SM, RTT, RTC.
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SLEEPMGR_BACKUP,
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#endif
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SLEEPMGR_NR_OF_MODES,
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};
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/**
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* \internal
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* \name Internal arrays
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* @{
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*/
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#if defined(CONFIG_SLEEPMGR_ENABLE) || defined(__DOXYGEN__)
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//! Sleep mode lock counters
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extern uint8_t sleepmgr_locks[];
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#endif /* CONFIG_SLEEPMGR_ENABLE */
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//! @}
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static inline void sleepmgr_sleep(const enum sleepmgr_mode sleep_mode)
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{
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Assert(sleep_mode != SLEEPMGR_ACTIVE);
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#ifdef CONFIG_SLEEPMGR_ENABLE
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cpu_irq_disable();
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// Atomically enable the global interrupts and enter the sleep mode.
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pmc_sleep(sleep_mode);
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#else
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UNUSED(sleep_mode);
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cpu_irq_enable();
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#endif /* CONFIG_SLEEPMGR_ENABLE */
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}
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//! @}
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#ifdef __cplusplus
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}
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#endif
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#endif /* SAM_SLEEPMGR_INCLUDED */
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