#ifndef _DEV_CONFIG_H_
#define _DEV_CONFIG_H_
/***********************************************************************************************************************
			------------------------------------------------------------------------
			|\\\																///|
			|\\\					Hardware interface							///|
			------------------------------------------------------------------------
***********************************************************************************************************************/
#include <bcm2835.h>

//GPIO config
//#define SPI_MISO 9
//#define SPI_MOSI 10
//#define SPI_SCK  11
#define LCD_CS   8
#define LCD_RST  27
#define LCD_DC   25
#define LCD_BL   24

//LCD
#define LCD_CS_0		bcm2835_gpio_write(LCD_CS,LOW)
#define LCD_CS_1		bcm2835_gpio_write(LCD_CS,HIGH)

#define LCD_RST_0		bcm2835_gpio_write(LCD_RST,LOW)
#define LCD_RST_1		bcm2835_gpio_write(LCD_RST,HIGH)

#define LCD_DC_0		bcm2835_gpio_write(LCD_DC,LOW)
#define LCD_DC_1		bcm2835_gpio_write(LCD_DC,HIGH)

#define LCD_BL_0		bcm2835_gpio_write(LCD_BL,LOW)
#define LCD_BL_1		bcm2835_gpio_write(LCD_BL,HIGH)

//KEY
#define KEY_UP_PIN      6
#define KEY_DOWN_PIN    19
#define KEY_LEFT_PIN    5
#define KEY_RIGHT_PIN   26
#define KEY_PRESS_PIN   13
#define KEY1_PIN        21
#define KEY2_PIN        20
#define KEY3_PIN        16

#define GET_KEY_UP       bcm2835_gpio_lev(KEY_UP_PIN)
#define GET_KEY_DOWN     bcm2835_gpio_lev(KEY_DOWN_PIN)
#define GET_KEY_LEFT     bcm2835_gpio_lev(KEY_LEFT_PIN)
#define GET_KEY_RIGHT    bcm2835_gpio_lev(KEY_RIGHT_PIN)
#define GET_KEY_PRESS    bcm2835_gpio_lev(KEY_PRESS_PIN)
#define GET_KEY1         bcm2835_gpio_lev(KEY1_PIN)
#define GET_KEY2         bcm2835_gpio_lev(KEY2_PIN)
#define GET_KEY3         bcm2835_gpio_lev(KEY3_PIN)
/*------------------------------------------------------------------------------------------------------*/
uint8_t System_Init(void);
void System_Exit(void);

void SPI_Write_Byte(uint8_t value);
void Driver_Delay_ms(uint32_t xms);
void Driver_Delay_us(uint32_t xus);
#include "DEV_Config.h"
#include <bcm2835.h>
#include <stdio.h>		//printf()


void GPIO_Config(void)
{
	bcm2835_gpio_fsel(LCD_RST,       BCM2835_GPIO_FSEL_OUTP);
    bcm2835_gpio_fsel(LCD_DC,        BCM2835_GPIO_FSEL_OUTP);
    bcm2835_gpio_fsel(LCD_CS,        BCM2835_GPIO_FSEL_OUTP);
	
	bcm2835_gpio_fsel(KEY_UP_PIN,    BCM2835_GPIO_FSEL_INPT);
    bcm2835_gpio_fsel(KEY_DOWN_PIN,  BCM2835_GPIO_FSEL_INPT);
    bcm2835_gpio_fsel(KEY_LEFT_PIN,  BCM2835_GPIO_FSEL_INPT);
    bcm2835_gpio_fsel(KEY_RIGHT_PIN, BCM2835_GPIO_FSEL_INPT);
    bcm2835_gpio_fsel(KEY_PRESS_PIN, BCM2835_GPIO_FSEL_INPT);
    bcm2835_gpio_fsel(KEY1_PIN,      BCM2835_GPIO_FSEL_INPT);
    bcm2835_gpio_fsel(KEY2_PIN,      BCM2835_GPIO_FSEL_INPT);
    bcm2835_gpio_fsel(KEY3_PIN,      BCM2835_GPIO_FSEL_INPT);
	
	bcm2835_gpio_set_pud(KEY_UP_PIN,    BCM2835_GPIO_PUD_UP);
	bcm2835_gpio_set_pud(KEY_DOWN_PIN,  BCM2835_GPIO_PUD_UP);
	bcm2835_gpio_set_pud(KEY_LEFT_PIN,  BCM2835_GPIO_PUD_UP);
	bcm2835_gpio_set_pud(KEY_RIGHT_PIN, BCM2835_GPIO_PUD_UP);
	bcm2835_gpio_set_pud(KEY_PRESS_PIN, BCM2835_GPIO_PUD_UP);
	bcm2835_gpio_set_pud(KEY1_PIN,      BCM2835_GPIO_PUD_UP);
	bcm2835_gpio_set_pud(KEY2_PIN,      BCM2835_GPIO_PUD_UP);
	bcm2835_gpio_set_pud(KEY3_PIN,      BCM2835_GPIO_PUD_UP);
}


uint8_t System_Init(void)
{
    if(!bcm2835_init()) {
        printf("bcm2835 init failed   !!! \r\n");
        return 1;
    } else {
        printf("bcm2835 init success  !!! \r\n");
    }
	
	GPIO_Config();

	printf("USE_SPI\r\n");
    bcm2835_spi_begin(); 										 //Start spi interface, set spi pin for the reuse function
    bcm2835_spi_setBitOrder(BCM2835_SPI_BIT_ORDER_MSBFIRST);     //High first transmission
    bcm2835_spi_setDataMode(BCM2835_SPI_MODE0);                  //spi mode 1
    bcm2835_spi_setClockDivider(BCM2835_SPI_CLOCK_DIVIDER_8);   //Frequency
    bcm2835_spi_chipSelect(BCM2835_SPI_CS0);                     //set CE0
    bcm2835_spi_setChipSelectPolarity(BCM2835_SPI_CS0, LOW);     //enable cs0

    return 0;
}

void System_Exit(void)
{
    bcm2835_spi_end();
    bcm2835_close();
}
/*********************************************


*********************************************/	
 void SPI_Write_Byte(uint8_t value)                                    
{    
	bcm2835_spi_transfer(value);
}

/*********************************************


*********************************************/	
void Driver_Delay_ms(uint32_t xms)	
{	
	bcm2835_delay(xms);
}

void Driver_Delay_us(uint32_t xus)
{
  int j;
  for(j=xus;j > 0;j--);    
}

#endif