File content as of revision 1:b1aa1d6a96bc:

/**
 *  @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.
 */

/*
 *  Modified by Kenji Arai / JH1PJL
 *
 *  http://www.page.sannet.ne.jp/kenjia/index.html
 *  http://mbed.org/users/kenjiArai/
 *      Created:    April     27th, 2019
 *      Revised:    May       26th, 2019
 *
 *  Refrence software
 *  https://github.com/waveshare/e-Paper
 *  https://os.mbed.com/users/imachooon/code/epd1in54/
 *
 *  Technical documents
 *  https://www.waveshare.com/wiki/2.13inch_e-Paper_HAT_(B)
 *
 *  Product
 *  http://akizukidenshi.com/catalog/g/gP-13757/
 *  https://www.waveshare.com/2.13inch-e-paper-hat-b.htm
 *
 */

#include "epdif.h"

EpdIf::EpdIf()
{
    ;
}

EpdIf::EpdIf(PinName mosi,
             PinName miso,
             PinName sclk,
             PinName cs,
             PinName dc,
             PinName rst,
             PinName busy,
             PinName pwr)
{
    m_spi  = new SPI(mosi, miso, sclk);
    m_cs   = new DigitalOut(cs);
    m_dc   = new DigitalOut(dc);
    m_rst  = new DigitalOut(rst);
    m_busy = new DigitalIn(busy);
    m_pwr  = new DigitalOut(pwr);
    p_mosi = mosi;
    p_sclk = sclk;
}

void EpdIf::DigitalWrite(DigitalOut* pin, int value)
{
    *pin = value;
}

int EpdIf::DigitalRead(DigitalIn* pin)
{
    int ret = *pin;
    return ret;
}

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

void EpdIf::SpiTransfer(unsigned char data)
{
    *m_cs = 0;
    m_spi->write(data);
    *m_cs = 1;
}

int EpdIf::IfInit(void)
{
    m_spi->format(8,0);
    m_spi->frequency(2000000);
    return 0;
}

void EpdIf::all_off(void)
{
    m_mosi = new DigitalOut(p_mosi);
    m_sclk = new DigitalOut(p_sclk);
    *m_mosi = 0;
    *m_sclk = 0;
    *m_cs = 0;
    *m_dc = 0;
    *m_rst = 0;
    *m_pwr = 0;
}