You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
87 lines
2.5 KiB
87 lines
2.5 KiB
/**
|
|
* \file
|
|
*
|
|
* \brief SAM Power manager
|
|
*
|
|
* Copyright (C) 2014-2017 Atmel Corporation. All rights reserved.
|
|
*
|
|
* \asf_license_start
|
|
*
|
|
* \page License
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted provided that the following conditions are met:
|
|
*
|
|
* 1. Redistributions of source code must retain the above copyright notice,
|
|
* this list of conditions and the following disclaimer.
|
|
*
|
|
* 2. Redistributions in binary form must reproduce the above copyright notice,
|
|
* this list of conditions and the following disclaimer in the documentation
|
|
* and/or other materials provided with the distribution.
|
|
*
|
|
* 3. The name of Atmel may not be used to endorse or promote products derived
|
|
* from this software without specific prior written permission.
|
|
*
|
|
* 4. This software may only be redistributed and used in connection with an
|
|
* Atmel microcontroller product.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY ATMEL "AS IS" AND ANY EXPRESS OR IMPLIED
|
|
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
|
|
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT ARE
|
|
* EXPRESSLY AND SPECIFICALLY DISCLAIMED. IN NO EVENT SHALL ATMEL BE LIABLE FOR
|
|
* ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
|
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
|
|
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
|
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
|
|
* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
|
|
* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
|
|
* POSSIBILITY OF SUCH DAMAGE.
|
|
*
|
|
* \asf_license_stop
|
|
*
|
|
*/
|
|
|
|
#include <hpl_pm_base.h>
|
|
#include <hpl_pm_config.h>
|
|
#include <hpl_reset.h>
|
|
#include <hpl_sleep.h>
|
|
#include <utils_assert.h>
|
|
|
|
/**
|
|
* \brief Retrieve the reset reason
|
|
*/
|
|
enum reset_reason _get_reset_reason(void)
|
|
{
|
|
return (enum reset_reason)hri_pm_read_RCAUSE_reg(PM);
|
|
}
|
|
|
|
/**
|
|
* \brief Set the sleep mode for the device
|
|
*/
|
|
int32_t _set_sleep_mode(const uint8_t mode)
|
|
{
|
|
switch (mode) {
|
|
case 0:
|
|
case 1:
|
|
case 2:
|
|
SCB->SCR &= ~SCB_SCR_SLEEPDEEP_Msk;
|
|
PM->SLEEP.reg = mode;
|
|
return ERR_NONE;
|
|
case 3:
|
|
SCB->SCR |= SCB_SCR_SLEEPDEEP_Msk;
|
|
return ERR_NONE;
|
|
default:
|
|
return ERR_INVALID_ARG;
|
|
}
|
|
}
|
|
|
|
/**
|
|
* \brief Power Manager Init
|
|
*/
|
|
void _pm_init(void)
|
|
{
|
|
hri_pm_set_CPUSEL_CPUDIV_bf(PM, CONF_CPU_DIV);
|
|
hri_pm_set_APBASEL_APBADIV_bf(PM, CONF_APBA_DIV);
|
|
hri_pm_set_APBBSEL_APBBDIV_bf(PM, CONF_APBB_DIV);
|
|
hri_pm_set_APBCSEL_APBCDIV_bf(PM, CONF_APBC_DIV);
|
|
}
|
|
|