#include "defs.h"
#include "funcs.c"

#include <stdlib.h>
void SPI_Modes_Setting(int mode)
{
  if (mode == 0)
  {
    // CPOL and CPHA
    SPCR &= ~(1 << CPOL) & ~(1 << CPHA);
  } else if (mode == 1)
  {
    SPCR &= ~(1 << CPOL);
    SPCR |= (1 << CPHA);
  } else if (mode == 2)
  {
    SPCR |= (1 << CPOL);
    SPCR &= ~(1 << CPHA);
  } else if (mode == 3)
  {
    SPCR |= (1 << CPOL) | (1 << CPHA);
  }
}
void SPI_MasterInit(void)
{
  // SPI mode configuration for CPOL and CPHA
  SPI_Modes_Setting(0);
  //fosc/128 selected
  //SPCR |= (1 << SPR0) | (1 << SPR1);
  //SPSR &= ~(1 << SPI2X);
  // DDB5 --> SCK , DDB3 --> MOSI , DDB2 --> SS , DDB1 --> Output Enable ,
  DDRB |= (1 << DDB5) | (1 << DDB3) | (1 << DDB2) | (1 << DDB1) ;
  // DDB4 --> MISO
  DDRB &= ~(1 << DDB4);
  PORTB |= (1 << DDB1);
  //portD settings
  // DDD2 --> pbBlk , DDD3 --> pbBlu , DDD4 --> pbRed , DDD5 --> pbGrn
  DDRD &= ~(1 << DDD2) | (1 << DDD3) | (1 << DDD4) | (1 << DDD5);
  // Arduino as SPI Master
  SPCR |= (1 << DORD) | (1 << MSTR);
  //SPI Enable
  SPCR |= (1 << SPE); // enable right after Data registers are ready
}
int dummyRead, i = 0;
// SPI Master Transmit Data:

void SPI_MasterTransmit(uint8_t cData)
{
  SPDR = cData;
  while (SPSR & 0X80 == 0);
  dummyRead = SPDR;
}


void updtLEDMatrices() {
  for (uint8_t y = 0; y < 8; y++) {
    PORTB &= ~(1 << DDB2);
    delay(0);
    for (uint8_t x = 0; x < 4; x++) {
      SPI_MasterTransmit(y + 1);
      delay(0);
      SPI_MasterTransmit(*(leds[x] + y));
      delay(0);
    }
    PORTB |= (1 << DDB2);
  }
}
void clrLEDMatrices() {
  clearData(leds);
  updtLEDMatrices();
}
void setup() {
  Serial.begin(9600);
  SPI_MasterInit();
  PORTB |= (1 << DDB2);
  clearData(leds);
}

void loop()
{
  for (uint8_t x = 0; x < 10; x++) {
    clrLEDMatrices();
    makeNumber(leds, 0, 0 + x);
    makeNumber(leds, 8, 0 + x);
    makeNumber(leds, 16, 0 + x);
    makeNumber(leds, 24, 0 + x);
    updtLEDMatrices();
    delay(100);
  }
}