lcdc_init_plane_g.c

coldfire的mcf5329的程序

/*
 * File:        LCDC_init_plane_g.c
 * Purpose:     Graphic Window Configuration
 *
 * Notes:
 *
 */
 
/*************************** Includes **************************/
#include "src/common/common.h"
#include "LCDC_init_plane.h"


/**************************************************
 * Function name: LCDCGW_Display_Image(uint8 *)
 * returns		: return none
 * arg1			: pointer to image
 * arg2			: none
 * Description	: detailed description 
 * Notes		: restrictions, odd modes
 **************************************************/
void LCDCGW_Display_Image(uint8 *img)
{
  lcdc_file lcd_file = *(lcdc_file*)img;
  uint32 gw_words_per_row, i;
  vuint32 *LUT_GW;
  
  printf("\ngw_width= %x",               lcd_file.header.width);
  printf("\ngw_height= %x",              lcd_file.header.height);
  printf("\ngw_bpp= %x",                 lcd_file.header.bpp);
  printf("\ngw_color_depth= %x",         lcd_file.header.color_depth);
  printf("\ngw_color_table_entries= %x", lcd_file.header.color_table_entries);
  printf("\ngw_color_table_offset= %x",  lcd_file.header.color_table_offset);
  printf("\ngw_image_size= %x",          lcd_file.header.image_size);
  printf("\ngw_image_offset= %x",        lcd_file.header.image_offset);

  gw_words_per_row = lcd_file.header.width >> 2;
  switch(lcd_file.header.bpp)
  { case  1: gw_words_per_row >>= 3; break;
    case  2: gw_words_per_row >>= 2; break;
    case  4: gw_words_per_row >>= 1; break;
    case  8: break;
    case 12: gw_words_per_row <<= 1; break;
    case 16: gw_words_per_row <<= 1; break;
    case 18: gw_words_per_row <<= 2; break;
  }
  	
  MCF_LCDC_LGWSAR =  (vuint32)img + lcd_file.header.image_offset; 
  MCF_LCDC_LGWSR =  lcd_file.header.width << 16 | lcd_file.header.height;
  MCF_LCDC_LGWVPWR =  gw_words_per_row;
  MCF_LCDC_LGWPR = 0x00000000;  //  arbitrary (x,y) GW position



  MCF_LCDC_LGWDCR = ( 0
  						| MCF_LCDC_LGWDCR_GWHM(4)
  						|MCF_LCDC_LGWDCR_GWTM(8) );




  if(lcd_file.header.color_table_entries)
  {  //printf("\nFilling Graphic Window Lookup Table....");
	 for(i=0; i < (lcd_file.header.color_table_entries); i++)
	 {
	   LUT_GW = (uint32*)0xFC0ACC00 +i;
	   *LUT_GW = *(uint32*)(img + lcd_file.header.color_table_offset+ i*4);
	   
	 }
     //printf("\nGraphic Window Lookup Table Filled...."); 
  }
	
  //MCF_LCDC_LPCR |= MCF_LCDC_LPCR_PCD(PixClkDiv); // Pixel CLK Divider, actual divider is PCD value + 1 

  MCF_LCDC_LGWCR |= (0
  				   //|MCF_LCDC_LGWCR_GWCKB(x)
  				   //|MCF_LCDC_LGWCR_GWCKG(x)
  				   //|MCF_LCDC_LGWCR_GWCKR(x)
  				   //|MCF_LCDC_LGWCR_GW_RVS  
  				   |MCF_LCDC_LGWCR_GWE     
  				   //|MCF_LCDC_LGWCR_GWCKE   
  				   |MCF_LCDC_LGWCR_GWAV(0) 
  				   );

  printf("\nLCDC_LGWSR= 0x%08x", MCF_LCDC_LGWSR);
  printf("\nLCDC_LGWVPWR= 0x%08x", MCF_LCDC_LGWVPWR);
  printf("\nLCDC_LGWCR= 0x%08x", MCF_LCDC_LGWCR);
  printf("\nLCDC_LGWPR 0x%08x", MCF_LCDC_LGWPR);
  printf("\nLCDC_LGWSAR= 0x%08x", MCF_LCDC_LGWSAR);
  
}/*end Display_Image*/