File content as of revision 4:6ec3bc44f055:

/*******************************************************************************
* Author: Ihsan Mert Ozcelik, Ihsan.Ozcelik@maximintegrated.com
* Copyright (C) 2017 Maxim Integrated Products, Inc., All Rights Reserved.
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation 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 furnished 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 FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
* IN NO EVENT SHALL MAXIM INTEGRATED 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.
*
* Except as contained in this notice, the name of Maxim Integrated
* Products, Inc. shall not be used except as stated in the Maxim Integrated
* Products, Inc. Branding Policy.
*
* The mere transfer of this software does not imply any licenses
* of trade secrets, proprietary technology, copyrights, patents,
* trademarks, maskwork rights, or any other form of intellectual
* property whatsoever. Maxim Integrated Products, Inc. retains all
* ownership rights.
*******************************************************************************
*/
#include "MAX8614X.h"

#define pr_err(fmt, args...) if(1) printf(fmt " (%s:%d)\n", ##args, __func__, __LINE__)
#define pr_info(fmt, args...) if(1) printf(fmt " (%s:%d)\n", ##args, __func__, __LINE__)
#define pr_debug(fmt, args...) if(0) printf(fmt " (%s:%d)\n", ##args, __func__, __LINE__)

#define ARRAY_SIZE(array)           (sizeof(array)/sizeof(array[0]))

MAX8614X::MAX8614X(SPI &spiBus, DigitalOut &cs, PinName pin)
:m_ir(pin), m_spiBus(spiBus), m_cs(cs)
{
    m_cs = 1;
}

int MAX8614X::init()
{
    int ret = RTN_NO_ERROR;
    m_ir.mode(PullUp);
    m_ir.fall(Callback<void()>(this, &MAX8614X::irq_handler));

    return ret;
}
int MAX8614X::readRegister(uint8_t reg, uint8_t *data, int len)
{
    m_cs = 0;

    m_spiBus.write(reg);
    m_spiBus.write(0x80);
    int i = 0;
    for(; i < len; i++) { /*TODO: make len unsigned*/
        data[i] = m_spiBus.write(0x00);
    }

    m_cs = 1;
    return 0; /*TODO: handle error cases*/
}

int MAX8614X::writeRegister(uint8_t reg, const uint8_t data)
{
    m_cs = 0;

    m_spiBus.write(reg);
    m_spiBus.write(0x00);
    m_spiBus.write(data);

    m_cs = 1;

    return 0; /*TODO: handle error cases*/
}

int MAX8614X::writeBlock(const RegisterMap reg_block[], unsigned int size)
{
    unsigned int i;
    int ret = 0;

    for (i = 0; i < size; i++) {
        ret = writeRegister((Registers) reg_block[i].addr,
                reg_block[i].val);
        if (ret < 0) {
            pr_err("writeRegister failed. ret: %d", ret);
            return ret;
        }
    }

    return ret;
}
void MAX8614X::irq_handler(void)
{
    int ret;
    int_status_t status;

    ret = readRegister(MAX8614X_INT_STATUS1_REG, status.val, 2);
    if (ret < 0) {
        printf("readRegister failed. ret: %d", ret);
    }
    printf("Status reg: %X %X \n\r", status.val[0], status.val[1]);

    if (status.sha_done) {
        shaComplete = true;
        printf("sha interrupt\n\r");
    }
}
bool MAX8614X::isShaComplete(void)
{
    return shaComplete;
}
void MAX8614X::clearShaComplete(void)
{
    shaComplete = false;
}
MAX8614X::~MAX8614X(void) 
{
  //empty block
}