| |
| /** |
| * \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; |
| } |