pm.c

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/*  ____  ____      _    __  __  ____ ___
 * |  _ \|  _ \    / \  |  \/  |/ ___/ _ \
 * | | | | |_) |  / _ \ | |\/| | |  | | | |
 * | |_| |  _ <  / ___ \| |  | | |__| |_| |
 * |____/|_| \_\/_/   \_\_|  |_|\____\___/
 *                           research group
 *                             dramco.be/
 *
 *  KU Leuven - Technology Campus Gent,
 *  Gebroeders De Smetstraat 1,
 *  B-9000 Gent, Belgium
 *
 *         File: pm.c
 *      Created: 2018-03-21
 *       Author: Geoffrey Ottoy
 *
 *  Description: Power management functions. Allows you to enable/disable
 *      certain subsystems of the LoRa extension board.
 */

#include <em_gpio.h>

#include "pm.h"          /* Corresponding header file */
#include "delay.h"       /* Delay functionality */
#include "pin_mapping.h" /* PORT and PIN definitions */

void PM_Init(void){
    //GPIO_PinModeSet(PM_SENS_GECKO_PORT, PM_SENS_GECKO_PIN, gpioModePushPull, 0);
    GPIO_PinModeSet(PM_SENS_EXT_PORT, PM_SENS_EXT_PIN, gpioModePushPull, 0);
    GPIO_PinModeSet(PM_RN2483_PORT, PM_RN2483_PIN, gpioModePushPull, 0);
}

void PM_Enable(PM_SubSystem_t pmss){
    switch(pmss){
        case PM_SENS_GECKO: {
            //GPIO_PinOutSet(PM_SENS_GECKO_PORT, PM_SENS_GECKO_PIN);
            //DelayMs(40); /* Give sensor time to power up */
        } break;
        case PM_SENS_EXT: {
            GPIO_PinOutSet(PM_SENS_EXT_PORT, PM_SENS_EXT_PIN);
            delay(40); /* Give sensor time to power up */
        } break;
        case PM_RN2483: {
            GPIO_PinOutSet(PM_RN2483_PORT, PM_RN2483_PIN);
        } break;
        case PM_ALL: {
            //GPIO_PinOutSet(PM_SENS_GECKO_PORT, PM_SENS_GECKO_PIN);
            GPIO_PinOutSet(PM_SENS_EXT_PORT, PM_SENS_EXT_PIN);
            delay(40); /* Give sensor time to power up */
            GPIO_PinOutSet(PM_RN2483_PORT, PM_RN2483_PIN);
        } break;
        default: {
            return;
        }
    }
}

void PM_Disable(PM_SubSystem_t pmss){
    switch(pmss){
        case PM_SENS_GECKO: {
            //GPIO_PinOutClear(PM_SENS_GECKO_PORT, PM_SENS_GECKO_PIN);
        } break;
        case PM_SENS_EXT: {
            GPIO_PinOutClear(PM_SENS_EXT_PORT, PM_SENS_EXT_PIN);
        } break;
        case PM_RN2483: {
            GPIO_PinOutClear(PM_RN2483_PORT, PM_RN2483_PIN);
        } break;
        case PM_ALL: {
            //GPIO_PinOutClear(PM_SENS_GECKO_PORT, PM_SENS_GECKO_PIN);
            GPIO_PinOutClear(PM_SENS_EXT_PORT, PM_SENS_EXT_PIN);
            GPIO_PinOutClear(PM_RN2483_PORT, PM_RN2483_PIN);
        } break;
        default: {
        } break;
    }
}