//-----------------------------------------------------------------------------
  // FUNCTION:    D4DLCDHW_SendDataWord_K70LCDC
  // SCOPE:       Low Level Driver API function
  // DESCRIPTION: The function send the one 16 bit variable into LCD  
  //
  // PARAMETERS:  unsigned long addr          address to write data
  //                            unsigned short value    variable to send
  //
  // RETURNS:     none
  //-----------------------------------------------------------------------------
  static void D4DLCDHW_WriteData_K70LCDC(unsigned long addr, D4D_COLOR value)
  {      
    #if D4D_COLOR_SYSTEM  == D4D_COLOR_SYSTEM_RGB565
        *((unsigned long*)addr) =((value & 0xf800)<<8)|((value & 0x07e0)<<5)|((value & 0x001F)<<3);    
    #elif D4D_COLOR_SYSTEM == D4D_COLOR_SYSTEM_RGB888
        *((unsigned long*)addr) = value;
    #endif    
  }

//low level driver for Kinetis K70 MCU LCDC peripherial
#define D4D_LLD_LCD_HW d4dlcdhw_k70_lcdc

// the main structure that contains low level driver api functions
  // the name fo this structure is used for recognizing of configured low level driver of whole D4D
  // so this name has to be used in main configuration header file of D4D driver to enable this driver
  const D4DLCDHWFB_FUNCTIONS d4dlcdhw_k70_lcdc =
  {
    D4DLCDHW_Init_K70LCDC,    
    D4DLCDHW_WriteData_K70LCDC,
    D4DLCDHW_ReadData_K70LCDC,
    D4DLCDHW_GetFbDescriptor_K70LCDC,
    D4DLCDHW_PinCtl_K70LCDC,
    D4DLCD_FlushBuffer_K70LCDC,
    D4DLCDHW_DeInit_K70LCDC
  };

/ d4dlcdhw_gpio6800_8b - low level hw interface driver for gpio drived parallel 8b 6800 bus
// d4dlcdhw_gpio8080_8b - low level hw interface driver for gpio drived parallel 8b 8080 bus
// d4dlcdhw_gpio8080_byte_8b - low level hw interface driver for gpio drived parallel 8b 8080 bus

/********************************************************************/
/*
* Display Red, Green, Blue, and White in each quadrant of the screen. Enable the
* graphic window to be displayed or not displayed, which will be a black rectangle
*/
void lcdc_color_demo()
{
color_demo_data(); //Create the frame buffer data for background plane and graphic window
color_demo_gw_setup(); //Initialize the graphic window registers for this demo

// set LCD Screen Start Address
LCDC_LSSAR = FRAME_START_ADDRESS;

// set LCD graphic window start address
LCDC_LGWSAR = GW_START_ADDRESS;

SIM_MCR|=SIM_MCR_LCDSTART_MASK; //Start LCDC

while(1)
{
in_char(); //Wait for input
LCDC_LGWCR&=~LCDC_LGWCR_GWE_MASK; //Turn off graphic window
in_char(); //Wait for input
LCDC_LGWCR|=LCDC_LGWCR_GWE_MASK; //Turn on graphic window
}

}

/*
* Create a frame buffer with the data to display on the LCD
*/
void color_demo_data()
{
int *pointer32;
int i,n;

/*
* Create the frame buffer so that the screen will be divided into 4 quadrants
* of a different color:
* RG
* BW
*/
pointer32=(int *)FRAME_START_ADDRESS;

//Loop through top half of screen
for(i=0;i<SCREEN_YSIZE/2;i++)
{
//One half will be red
for(n=0;n<SCREEN_XSIZE/2;n++)
{
*pointer32=0x00FF0000; //Red
pointer32++;
}

//One half will be green
for(n=0;n<SCREEN_XSIZE/2;n++)
{
*pointer32=0x0000FF00; //Green
pointer32++;
}
}

//Loop through bottom half of screen
for(i=0;i<SCREEN_YSIZE/2;i++)
{
//One half will be blue
for(n=0;n<SCREEN_XSIZE/2;n++)
{
*pointer32=0x000000FF; //Blue
pointer32++;
}

//One half will be white
for(n=0;n<SCREEN_XSIZE/2;n++)
{
*pointer32=0x00FFFFFF; //White
pointer32++;
}
}

/* Create a graphic window filled with the color black*/
pointer32=(int *)GW_START_ADDRESS;
for(i=0;i<GW_BUFFER_SIZE/4;i++)
{
*pointer32=0x00000000; //Black
pointer32++;
}
}

/*
* Initialize the graphic window registers to create a graphic window in the
* middle of the screen
*/
void color_demo_gw_setup()
{
// set LCD graphic window size
LCDC_LGWSR =
LCDC_LGWSR_GWW(GW_XSIZE/16) |
LCDC_LGWSR_GWH(GW_YSIZE);

// set LCD graphic window virtual page width
LCDC_LGWVPWR = GW_XSIZE;

// set LCD graphic window panning offset (not used in 24bpp mode)
LCDC_LGWPOR = 0;

// set LCD graphic window position so that the GW will cover up the middle of screen
LCDC_LGWPR =
LCDC_LGWPR_GWXP(SCREEN_XSIZE/4) |
LCDC_LGWPR_GWYP(SCREEN_YSIZE/4);

// set LCD graphic window control
LCDC_LGWCR =
LCDC_LGWCR_GWAV(0xff) | // alpha-transparent value (0xFF is opaque)
LCDC_LGWCR_GWE_MASK;
}

#define FRAME_START_ADDRESS 0x80400000  //Screen in DDR