// ###################   Mini air quality and wither station with electronic ink display 2.13 Inch | nRF52   ############### //
//                                                                                                                           //
//        @filename   :   MWS213_V2R3_ED3.ino                                                                                //
//        @brief en   :   Wireless, battery-operated air quality(VOC Sensor SGP40), temperature,humidity and pressure        //
//                        sensor(BME280) with electronic ink display(Good Display GDEH0213B72, GDEH0213B73, Waveshare V2).   //
//                        Works on SOC nRF52.                                                                                //
//        @brief ru   :   Беcпроводной, батарейный датчик качества воздуха (ЛОС сенсорс SGP40), температуры, влажности       //
//                        и давления(BME280) с дисплеем на электронных чернилах(Good Display GDEH0213B72, GDEH0213B73,       //
//                        Waveshare V2).                                                                                     //
//                        Работает на nRF52832, nRF52840.                                                                    //
//                                                                                                                           //
//        @author     :   Andrew Lamchenko aka Berk                                                                          //
//                                                                                                                           //
//        Copyright (C) 2021, EFEKTALAB                                                                                      //
//        Copyright (c) 2020, Sensirion AG                                                                                   //
//        Copyright (c) 2020, Bosch Sensortec GmbH. All rights reserved.                                                     //
//        Copyright (c) 2014-2015, Arduino LLC.  All right reserved.                                                         //
//        Copyright (c) 2016, Arduino Srl.  All right reserved.                                                              //
//        Copyright (c) 2017, Sensnology AB. All right reserved.                                                             //
//        Copyright (C) 2020, Waveshare                                                                                      //
//                                                                                                                           //
// ######################################################################################################################### //

/**
 *  @filename   :   epdif.cpp
 *  @brief      :   Implements EPD interface functions
 *                  Users have to implement all the functions in epdif.cpp
 *  @author     :   Yehui from Waveshare
 *
 *  Copyright (C) Waveshare     August 10 2017
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documnetation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to  whom the Software is
 * furished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS OR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
 * THE SOFTWARE.
 */

#include "eink.h"
#include <spi.h>

EpdIf::EpdIf() {
};

EpdIf::~EpdIf() {
};

void EpdIf::DigitalWrite(int pin, int value) {
    digitalWrite(pin, value);
}

int EpdIf::DigitalRead(int pin) {
    return digitalRead(pin);
}

void EpdIf::DelayMs(unsigned int delaytime) {
    delay(delaytime);
}

void EpdIf::SpiTransfer(unsigned char data) {
    digitalWrite(CS_PIN, LOW);
    SPI.transfer(data);
    digitalWrite(CS_PIN, HIGH);
}

int EpdIf::IfInit(void) {
    pinMode(CS_PIN, OUTPUT);
    pinMode(RST_PIN, OUTPUT);
    pinMode(DC_PIN, OUTPUT);
    pinMode(BUSY_PIN, INPUT); 
    
    SPI.begin();
    SPI.beginTransaction(SPISettings(2000000, MSBFIRST, SPI_MODE0));
    return 0;
}