You cannot select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
69 lines
1.9 KiB
C
69 lines
1.9 KiB
C
4 years ago
|
|
||
|
|
/**
|
||
|
|
* \file
|
||
|
|
*
|
||
|
|
* \brief SAM Power manager
|
||
|
|
*
|
||
|
|
* Copyright (c) 2016-2018 Microchip Technology Inc. and its subsidiaries.
|
||
|
|
*
|
||
|
|
* \asf_license_start
|
||
|
|
*
|
||
|
|
* \page License
|
||
|
|
*
|
||
|
|
* Subject to your compliance with these terms, you may use Microchip
|
||
|
|
* software and any derivatives exclusively with Microchip products.
|
||
|
|
* It is your responsibility to comply with third party license terms applicable
|
||
|
|
* to your use of third party software (including open source software) that
|
||
|
|
* may accompany Microchip software.
|
||
|
|
*
|
||
|
|
* THIS SOFTWARE IS SUPPLIED BY MICROCHIP "AS IS". NO WARRANTIES,
|
||
|
|
* WHETHER EXPRESS, IMPLIED OR STATUTORY, APPLY TO THIS SOFTWARE,
|
||
|
|
* INCLUDING ANY IMPLIED WARRANTIES OF NON-INFRINGEMENT, MERCHANTABILITY,
|
||
|
|
* AND FITNESS FOR A PARTICULAR PURPOSE. IN NO EVENT WILL MICROCHIP BE
|
||
|
|
* LIABLE FOR ANY INDIRECT, SPECIAL, PUNITIVE, INCIDENTAL OR CONSEQUENTIAL
|
||
|
|
* LOSS, DAMAGE, COST OR EXPENSE OF ANY KIND WHATSOEVER RELATED TO THE
|
||
|
|
* SOFTWARE, HOWEVER CAUSED, EVEN IF MICROCHIP HAS BEEN ADVISED OF THE
|
||
|
|
* POSSIBILITY OR THE DAMAGES ARE FORESEEABLE. TO THE FULLEST EXTENT
|
||
|
|
* ALLOWED BY LAW, MICROCHIP'S TOTAL LIABILITY ON ALL CLAIMS IN ANY WAY
|
||
|
|
* RELATED TO THIS SOFTWARE WILL NOT EXCEED THE AMOUNT OF FEES, IF ANY,
|
||
|
|
* THAT YOU HAVE PAID DIRECTLY TO MICROCHIP FOR THIS SOFTWARE.
|
||
|
|
*
|
||
|
|
* \asf_license_stop
|
||
|
|
*
|
||
|
|
*/
|
||
|
|
|
||
|
|
#include <hpl_sleep.h>
|
||
|
|
#include <hpl_init.h>
|
||
|
|
|
||
|
|
/**
|
||
|
|
* \brief Set the sleep mode for the device
|
||
|
|
*/
|
||
|
|
int32_t _set_sleep_mode(const uint8_t mode)
|
||
|
|
{
|
||
|
|
uint8_t delay = 10;
|
||
|
|
|
||
|
|
switch (mode) {
|
||
|
|
case 2:
|
||
|
|
case 4:
|
||
|
|
case 5:
|
||
|
|
case 6:
|
||
|
|
case 7:
|
||
|
|
hri_pm_write_SLEEPCFG_reg(PM, mode);
|
||
|
|
/* A small latency happens between the store instruction and actual
|
||
|
|
* writing of the SLEEPCFG register due to bridges. Software has to make
|
||
|
|
* sure the SLEEPCFG register reads the wanted value before issuing WFI
|
||
|
|
* instruction.
|
||
|
|
*/
|
||
|
|
do {
|
||
|
|
if (hri_pm_read_SLEEPCFG_reg(PM) == mode) {
|
||
|
|
break;
|
||
|
|
}
|
||
|
|
} while (--delay);
|
||
|
|
break;
|
||
|
|
default:
|
||
|
|
return ERR_INVALID_ARG;
|
||
|
|
}
|
||
|
|
|
||
|
|
return ERR_NONE;
|
||
|
|
}
|