lcd.c

基于三星s3c2440的型号为LMS350GF03 TFT液晶屏的驱动源码。里面包括有16位和24位驱动。

//designed by zzf
//====================================================================

#include <string.h>
#include "def.h"
#include "2440addr.h"
#include "2440lib.h"
#include "2440slib.h"
#include "glib.h"
#include "lcd.h"
#include "DEMO256.h"

//16bpp
#define  RGB16BPP   1

//24bpp
//#define  RGB16BPP   0
////
#define LCDFRAMEBUFFER 0x33800000 //_NONCACHE_STARTADDRESS 
    // 1. The LCD frame buffer should be write-through or non-cachable.
    // 2. The total frame memory should be inside 4MB.
    // 3. To meet above 2 conditions, the frame buffer should be 
    // inside the following regions.
    // 0x31000000~0x313ffffff,
    // 0x31400000~0x317ffffff,
    // 0x31800000~0x31bffffff,
    //        .....    
    // 0x33800000~0x33bffffff      

////
#define M5D(n) ((n) & 0x1fffff)	// To get lower 21bits
#define LCD_XSIZE_TFT_320240 	(320)	
#define LCD_YSIZE_TFT_320240 	(240)

//16bpp
#define SCR_XSIZE_TFT_320240 	(320)
#define SCR_YSIZE_TFT_320240 	(240)

//24bpp 
#define SCR_XSIZE_TFT_320240_24     (320*2)
#define SCR_YSIZE_TFT_320240_24  	(240*2)

extern unsigned char flower1_320_240[];//自定义的图片//16bpp


extern unsigned char flower2_320_240[];//自定义的图片//24bpp 

volatile static unsigned short LCD_BUFFER_16bpp[SCR_YSIZE_TFT_320240][SCR_XSIZE_TFT_320240];//halfword

volatile static unsigned short LCD_BUFFER_24bpp[SCR_YSIZE_TFT_320240_24][SCR_XSIZE_TFT_320240_24];//halfword

///////////////////////////////////////////////////////////////////////////
 void TMS350_Test_Lcd_Tft_24Bit_320240(void);
void TMS350_LCD_CONTROLER_SetUP16(void);
void SPI_Write(unsigned char Index,unsigned short REG_DATA);
void Init_Display( void );
void InitSPI(void);
void RGB_Start_PATTERN16(void);
void delay_lcd(unsigned int msDelay);
static void Lcd_ClearScr( U32 c);
static void Paint_Bmp_16bpp(int x0,int y0,int h,int l,unsigned char bmp[]);
 /////////////////////////////////////////////////////////////////////////// 
void TMS350_LCD_CONTROLER_SetUP24(void);
static void Paint_Bmp_24bpp(int x0,int y0,int h,int l,unsigned char bmp[]);

 //Power supply should always be turned on/off by the "Power on/off sequence" 
void LCD_POWER_ON_Sequence(void);
void LCD_DISPLAY_ON_Sequence(void);
void LCD_POWER_OFF_Sequence(void);
void LCD_DISPLAY_OFF_Sequence(void);
void LCD_Stand_by_IN_Sequence(void);
void LCD_Stand_by_Cancel_Sequence(void);
 //////////////////////////////////////////////////////////////////////////
void Lcd_Test(void)
{
 int i;
  Uart_Printf("\n======  LCD Test program start ======\n");
   //###zzf-add###
   //black white  led on
   rGPBDAT=(rGPBDAT|0x02);
  Uart_Printf("\nblack white  led on\n");	
  Uart_Printf("\n0.Lms350--TFT320X240 24Bit\n");
  Uart_Printf("\nPress only Enter key to exit : ");
 while(1) 
{
    	 i=1;
     	 i = Uart_GetIntNum();
  	if(i==-1) break;	
  	if(i==0 )
  	{
  	   TMS350_Test_Lcd_Tft_24Bit_320240();
  	}
  }
 
Uart_Printf("\n====== LCD Test program end ======\n");
   //###zzf-add###
   //black white  led off
   //rGPBDAT=(rGPBDAT&(~0x02));
  // Uart_Printf("\nblack white  led off\n");	

 }

//################################TMS350####################################
//#########################################################################
//#########################################################################
 void TMS350_Test_Lcd_Tft_24Bit_320240(void)
 {
    Uart_Printf("\nLMs350gf03-001_Test_Lcd_Tft_24Bit\n\r");
    Init_Display();
    LCD_POWER_ON_Sequence();
    LCD_DISPLAY_ON_Sequence();

#if RGB16BPP 
    Uart_Printf("\nbegin display\n\r");

    RGB_Start_PATTERN16();
	
    Uart_Getch() ;	//Any Key To Next

    Uart_Printf("\n display off\n\r");
	
    LCD_DISPLAY_OFF_Sequence();

    Uart_Printf("\nin stand_by \n\r");
    LCD_Stand_by_IN_Sequence();

    Uart_Getch();	//Any Key To Next

    Uart_Printf("\nCancel stand_by \n\r");
	 
    LCD_Stand_by_Cancel_Sequence();
	
    LCD_POWER_ON_Sequence();
    LCD_DISPLAY_ON_Sequence();
	
    Uart_Printf("bmp1,Any Key To Next!\n");
	
    Paint_Bmp_16bpp(0, 0, 320, 240, flower1_320_240);

    Uart_Getch();

    Uart_Getch();	//Any Key To Next
    Lcd_ClearScr(0x0000);
    Uart_Getch();	

#else

   Paint_Bmp_24bpp(0, 0, 320*2, 240*2, flower2_320_240);
   Uart_Getch() ;

#endif    
   LCD_DISPLAY_OFF_Sequence();
   LCD_POWER_OFF_Sequence();
	
   Uart_Printf("LCD display off!\n");
   Uart_Printf("LCD Test Complete!\n");
}

//******************************** TFT CONTROLER SETUP***********************************
void TMS350_LCD_CONTROLER_SetUP16(void)
{     
   delay_lcd(2000);
    rLCDCON1   =  (8          <<  8) |          /* VCLK = HCLK / ((CLKVAL + 1) * 2) -> About 7 Mhz  */
                           (0           <<  7)  |       /* 0 : Each Frame                                   */
                           (3           <<  5) |       /* TFT LCD Pannel                                   */
                           (12          <<  1) |       /* 16bpp Mode                                       */
                           (0           <<  0) ;       /* Disable LCD Output                              */
	
   rLCDCON2=      (16           << 24) |    /* VBPD          :   16                              */
                           (239         << 14) |   /* Virtical Size : 240 - 1                          */
                           (6          <<  6) |      /* VFPD          :   3                                  */
                           (2           <<  0) ;     /* VSPW          :   2                                */
   
   rLCDCON3=     (9             << 19) |   /* HBPD          :   9                              */ 
                           (319         <<  8) |   /* HOZVAL_TFT    : 320 - 1                          */
                           (6            <<  0) ;   /* HFPD          :   6                              */
             
   rLCDCON4   =   (0           <<  8) |    /* MVAL           : 0                              */
                           (2           <<  0) ;    /* HSPW         :   2                              */
    
   rLCDCON5   =   // (0            << 12) |   /* BPP24BL       : LSB valid                        */
                           (1           << 11) |   /* FRM565 MODE   : 5:6:5 Format                     */
                           (1           << 10) |   /* INVVCLK       : VCLK Falling Edge                */
                           (1           <<  9) |   /* INVVLINE      : Inverted Polarity                */
                           (1           <<  8) |   /* INVVFRAME     : Inverted Polarity                */
                           (0           <<  7) |   /* INVVD         : Normal                           */
                           (0           <<  6) |   /* INVVDEN       : Norma                        */
                           (1           <<  5) |   /* INVPWREN      : Normal                           */
                           (1           <<  4) |   /* INVENDLINE    : Normal                           */
                           (1          <<  3) |   /* PWREN         : Disable PWREN                    */
                           (0          <<  2) |   /* ENLEND        : Disable LEND signal              */
                           (0          <<  1) |   /* BSWP          : Swap Disable                     */
                           (1          <<  0) ;   /* HWSWP         : Swap Enable                      */
                        
   rLCDSADDR1=(((U32)LCD_BUFFER_16bpp>>22)<<21)|M5D((U32)LCD_BUFFER_16bpp>>1);
   rLCDSADDR2=M5D( ((U32)LCD_BUFFER_16bpp+(SCR_XSIZE_TFT_320240*LCD_YSIZE_TFT_320240*2))>>1 );
   rLCDSADDR3=(((SCR_XSIZE_TFT_320240-LCD_XSIZE_TFT_320240)/1)<<11)|(LCD_XSIZE_TFT_320240/1);

   // rTCONSEL &= (~7) ;     // Disable LPC3480
    rTCONSEL   |= 0x0;
    rLCDINTMSK |= 0x3;	
    rTPAL=0; // Disable Temp Palette
    rLCDCON1  |= 0x1;

}


//******************************** TFT CONTROLER SETUP***********************************
void TMS350_LCD_CONTROLER_SetUP24(void)
{
  delay_lcd(2000);

//    frameBuffer24BitTft240320=(U32 (*)[SCR_XSIZE_TFT_240320])LCDFRAMEBUFFER;
  
    rLCDCON1   =  (8          <<  8) |          /* VCLK = HCLK / ((CLKVAL + 1) * 2) -> About 7 Mhz  */
                           (0           <<  7)  |       /* 0 : Each Frame                                   */
                           (3           <<  5) |       /* TFT LCD Pannel                                   */
                           (13          <<  1) |       /* 16bpp Mode                                       */
                           (0           <<  0) ;       /* Disable LCD Output                              */
	
   rLCDCON2=      (16           << 24) |    /* VBPD          :   16                              */
                           (239         << 14) |   /* Virtical Size : 240 - 1                          */
                           (6          <<  6) |      /* VFPD          :   3                                  */
                           (2           <<  0) ;     /* VSPW          :   2                                */
   
    rLCDCON3=     (9             << 19) |   /* HBPD          :   9                              */ 
                           (319         <<  8) |   /* HOZVAL_TFT    : 320 - 1                          */
                           (6            <<  0) ;   /* HFPD          :   6                              */
             
   rLCDCON4   =   (0           <<  8) |    /* MVAL           : 0                              */
                           (2           <<  0) ;    /* HSPW         :   2                              */
    
   rLCDCON5   =    (0            << 12) |   /* BPP24BL       : LSB valid                        */
                         //(1           << 11) |   /* FRM565 MODE   : 5:6:5 Format                     */
                         //(1           << 10) |   /* INVVCLK       : VCLK Falling Edge                */
                             (1           <<  9) |   /* INVVLINE      : Inverted Polarity                */
                             (1           <<  8);// |   /* INVVFRAME     : Inverted Polarity                */
                        //   (0           <<  7) |   /* INVVD         : Normal                              */
                        //   (0           <<  6) |   /* INVVDEN       : Norma                           */
                        //   (1           <<  5) |   /* INVPWREN      : Normal                           */
                        //    (1           <<  4) |   /* INVENDLINE    : Normal                           */
                        //    (1          <<  3) |   /* PWREN         : Disable PWREN                    */
                        //    (0          <<  2) |   /* ENLEND        : Disable LEND signal              */
                        //    (0          <<  1) |   /* BSWP          : Swap Disable                     */
                        //    (1          <<  0) ;   /* HWSWP         : Swap Enable                      */
                         
   rLCDSADDR1=(((U32)LCD_BUFFER_24bpp>>22)<<21)|M5D((U32)LCD_BUFFER_24bpp>>1);
   
    rLCDSADDR2=M5D( ((U32)LCD_BUFFER_24bpp+(SCR_XSIZE_TFT_320240_24*LCD_YSIZE_TFT_320240*4))>>1 );

    rLCDSADDR3=(((SCR_XSIZE_TFT_320240_24-LCD_XSIZE_TFT_320240)*2)<<11)|(LCD_XSIZE_TFT_320240*2);

    rTCONSEL &= (~7) ;     // Disable LPC3480
    //rTCONSEL   |= 0x0;
    rLCDINTMSK |= 0x3;	
    rTPAL=0; // Disable Temp Palette
    rLCDCON1  |= 0x1;		
}


//##############################################
void InitSPI(void)
{
 //Uart_Printf("spi start\r\n");
   
 //set  SPI-CLK,SPI-MO
    rGPECON = (rGPECON & ~(0xf<<24)) | (0xa<<24);//GPE13,12;SPICLK,SPIMOSI
    rGPEUP |= (0x3<<12) ;                           //pull up disable register for portE 

    rSPPRE0=0x20;                                     //Baud rate = PCLK/2/(Prescaler value+1) =1M
    rSPPIN0=(0<<2)|(1<<1)|(0<<0);         //set the SPI pin control register
    rSPCON0=(0<<5)|(1<<4)|(1<<3)|(1<<2)|(1<<1)|(0<<0); //set the SPI control register
    
//set SPI--cs
    rGPGCON=  (rGPGCON& ~(0x3<<4)) | (0x1<<4);      //Gpg2 setup to CS(output)
    rGPGUP |= (0x1<<2) ;//pull up disable register for portg 
    rGPGDAT  |= (1<<2);    
    delay_lcd(10);//1ms
}


//##############################################
void LCD_POWER_ON_Sequence(void)
{

// lcd REST////
     rGPCCON = (rGPCCON& ~(0x3<<0)) | (0x1<<0);//gpc0  rest set for out
     rGPCUP |=(0x1<<0) ;    //pull up disable register for portg 
     rGPCDAT |=(1<<0);      // Reset out put hight
     delay_lcd(2); 
	 
     rGPCDAT &= ~(1<<0);  // Reset low active
     delay_lcd(2); 
     rGPCDAT |=(1<<0);     //Reset out put hight
     
     delay_lcd(150);

////lcd REST END ////
    SPI_Write(0x07,0x0000);    

    delay_lcd(500);
	
    SPI_Write(0x12,0x1618); 
    SPI_Write(0x11,0x2225);