/*
 * Copyright (c) 2015, Freescale Semiconductor, Inc.
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without modification,
 * are permitted provided that the following conditions are met:
 *
 * o Redistributions of source code must retain the above copyright notice, this list
 *   of conditions and the following disclaimer.
 *
 * o Redistributions in binary form must reproduce the above copyright notice, this
 *   list of conditions and the following disclaimer in the documentation and/or
 *   other materials provided with the distribution.
 *
 * o Neither the name of Freescale Semiconductor, Inc. nor the names of its
 *   contributors may be used to endorse or promote products derived from this
 *   software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
 * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR
 * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
 * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */

#include <stdio.h>
#include <stdint.h>
#include <stdbool.h>
#include "FreeRTOS.h"
#include "task.h"
#include "board.h"
#include "uart_imx.h"
#include "debug_console_imx.h"
#include "ecspi_xfer.h"
#include "spi_memory.h"
#include "clock_freq.h"

/* define ECSPI module parameters configuration. */
#define ECSPI_BURSTLENGTH               (39)
#define ECSPI_STARTMODE                 (false)

/* buffer used to transfer data */
static uint8_t txData[] = {0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08, 0x09, 0x0A, 0x0B, 0x0C, 0x0D, 0x0E, 0x0F,
                          0x0F, 0x0E, 0x0D, 0x0C, 0x0B, 0x0A, 0x09, 0x08, 0x07, 0x06, 0x05, 0x04, 0x03, 0x02, 0x01, 0x00};
static uint8_t rxData[32] = {0};

/******************************************************************************
*
* Function Name: vMemoryTask
* Comments: this task is used to operate memory, such as read status, write data 
*           in memory and read data from memory.
*
******************************************************************************/
void vMemoryTask(void *pvParameters)
{
    PRINTF("\n--------------------------- ECSPI Flash Demo ----------------------------\n\n\r");
    PRINTF("This demo application demonstrates usage of ECSPI driver based on FreeRTOS.\n\r");
    PRINTF("It transfers data to/from external memory over SPI bus.\n\n\r");
  
    PRINTF("Start Flash Memory Operating!\n\r");
    /* start SPI serial flash memory operation */
    /* Read the flash memory status register */
    M25P32_ReadStatus();

    /* Disable protection */
    M25P32_SetProtection(false);

    /* Erase memory before tests, user can erase the memory according to need */
    //M25P32_EraseChip();

    /* write data to memory */
    M25P32_WriteData(SPI_MEMORY_ADDR2, 32, txData);

    /* read data from memory */
    M25P32_ReadData(SPI_MEMORY_ADDR2, 32, rxData);

    PRINTF("Finish Flash Memory Operating!\n\r");

    for(;;);
}

/******************************************************************************
*
* Function Name: main
* Comments: main function, MCU configured as master mode, read from and write to
*           flash memory with FreeRTOS.
*
******************************************************************************/
int main(void)
{
    /* Hardware initialiize, include RDC, CLOCK, IOMUX, ENABLE MODULE */
    hardware_init();

    /* Ecspi module initialize, include configure parameters */
    ecspi_init_t ecspiInitConfig = {
        .clockRate = get_ecspi_clock_freq(BOARD_ECSPI_BASEADDR),
        .baudRate = 500000,
        .mode = ecspiMasterMode,
        .burstLength = ECSPI_BURSTLENGTH,
        .channelSelect = BOARD_ECSPI_CHANNEL,
        .clockPhase = ecspiClockPhaseFirstEdge,
        .clockPolarity = ecspiClockPolarityActiveHigh,
        .ecspiAutoStart = ECSPI_STARTMODE
    };
    ECSPI_XFER_Config(&ecspiInitConfig);

    /* Create two tasks with different priority */
    xTaskCreate(vMemoryTask, "memory", configMINIMAL_STACK_SIZE,
	            NULL, tskIDLE_PRIORITY+1, NULL);

    /* Start task schedule */
    vTaskStartScheduler();

    for(;;);
}

/*******************************************************************************
 * EOF
 ******************************************************************************/