#include <stdio.h>
#include <fat32.h>
#include <gpio.h>
#include <uart.h>
#include <stm32f4xx.h>
#include <bsp.h>
#include <core.h>
#include <N25Q128.h>
#include <spi.h>

extern streamdevice* __opnfiles__[];

/*
    N25Q128 pinout:
    MISO       => PB14
    MOSI       => PB15
    SCK        => PB13
    CS         => PB12
    WP         => PC1
    RESET/HOLD => PC2
*/
void cs(int csstate)
{
    gpiosetval(PB12,csstate);
}

void wp(int wpstate)
{
    gpiosetval(PC1,wpstate);
}

void resetHold(int rhstate)
{
    gpiosetval(PC2,rhstate);
}

int main()
{
   spiopenandconfig(spi2,spiclkfirstedge|spimaster|spimsbfirst|spi8bits,10000,PB15,PB14,PB13,(uint32_t)NULL);
   //spiopenandconfig(spi2,spiclkfirstedge|spimaster|spimsbfirst|spi8bits,10000,PB15,PB14,PB13,PB12);
   gpio_t PC1pin= gpioopen(PC1);
   gpiosetdir(&PC1pin,gpiooutdir);
   gpio_t PC2pin= gpioopen(PC2);
   gpiosetdir(&PC2pin,gpiooutdir);
   gpio_t PB12pin= gpioopen(PB12);
   gpiosetdir(&PB12pin,gpiooutdir);
   gpioset(PC1);
   gpioset(PB12);
   gpioclr(PC2);
   eepromN25Q128Dev eeprom;
   eepromN25Q128open(&eeprom,spi2,&cs,&wp,&resetHold);
   //eepromN25Q128open(&eeprom,spi2,NULL,&wp,&resetHold);
   delay_100us(10);
   gpioset(PC2);
   gpioclr(PB12);
   spiputw(spi2,0x9E);
   char res[22];
   spigetnc(spi2,res,22);
   gpioset(PB12);
   for(int i=0;i<22;i++)
   {
       printf("res[%d] = 0x%x\n\r",i,(int)res[i]);
   }
   eepromN25Q128enablewrite(&eeprom);
   delay_100us(10);
   eepromN25Q128writen(&eeprom,0,"hello World",11);
   delay_100us(10);
   eepromN25Q128readn(&eeprom,0,res,11);
   res[11]='\n';
   res[12]='\r';
   res[13]=0;
   printf("read: %s",res);
   printf("\n");
   for(int i=0;i<11;i++)
   {
       printf("res[%d] = 0x%x\n\r",i,(int)res[i]);
   }
   while(1)
    {
        gpioset(LED3);
        delay_100us(10000);
        gpioclr(LED3);
        delay_100us(10000);
    }
    printf("hello world\n\r");
    return 0;
}