lcd.h

ADS下的bios工程

#ifdef LCD_HEADER
#undef	CONFIG_LCD_MONO320X240	/* 1pixel/1bit LCD */
#undef	CONFIG_LCD_GRAY320X240	/* 16Gray, 1pixel/4bit LCD */
#define	CONFIG_LCD_STN320X240	/* 256Color, 1pixel/8bit LCD */
#undef	CONFIG_LCD_STN640X480	/* 256Color, 1pixel/8bit LCD */
#undef	CONFIG_LCD_TFT240X320	/* 1pixel/8bit LCD */

#if defined(CONFIG_LCD_TFT320X240)
#define	VD_WIDTH	8		/* ???? */
#elif defined(CONFIG_LCD_STN320X240)
#define	VD_WIDTH	8
#elif defined(CONFIG_LCD_MONO320X240) || defined(CONFIG_LCD_GRAY320X240)
#define	VD_WIDTH	4
#endif

#if defined(CONFIG_LCD_STN640X480)
#define FR_WIDTH	640
#define FR_HEIGHT	480
#elif defined(CONFIG_LCD_TFT240X320)
#define FR_WIDTH	240
#define FR_HEIGHT	320
#elif defined(CONFIG_LCD_STN320X240) || defined(CONFIG_LCD_GRAY320X240) || defined(CONFIG_LCD_MONO320X240)
#define FR_WIDTH	320
#define FR_HEIGHT	240
#endif

#define FR_PALETTE	256

/*      
 *  Frame Frequency(MAX) : 70 Hz
 *  HCLK = MCLK/2 = 70MHz
 *
 *  VCLK = Frame_rate * (LINEVAL+1) * (HOZVAL+1)
 *      @ In mono mode : HOZVAL = (FR_WIDTH/VD_WIDTH) - 1
 *      @ In color mode : HOZVAL = ((FR_WIDTH*3)/VD_WIDTH) - 1
 *
 *  @ STN : VCLK = HCLK / (CLKVAL*2), CLKVAL >= 2
 *  @ TFT : VCLK = HCLK / [(CLKVAL+1)*2], CLKVAL >= 1
 *
 *  Ex 0) 320x240 MONO LCD
 *      VCLK   = 70(freq) * 240(ysize) * 80(hozval) = 1.344MHz
 *      CLKVAL = 70MHz / (1.344MHz * 2) = 22.3214 = 22
 *  Ex 1) 320x240 16GRAY LCD
 *      VCLK   = 70(freq) * 240(ysize) * 80(hozval) = 1.344MHz
 *      CLKVAL = 70MHz / (1.344MHz * 2) = 22.3214 = 22
 *  Ex 2) 320x240 256STN LCD
 *      VCLK   = 70(freq) * 240(ysize) * 120(hozval) = 2.016MHz
 *      CLKVAL = 70MHz / (2.016MHz * 2) = 14.8809 = 14
 *  Ex 3) 640x480 256STN LCD
 *      VCLK   = 70(freq) * 480(ysize) * 240(hozval) = 8.064MHz
 *      CLKVAL = 70MHz / (8.064MHz * 2) = 3.7202 = 3
 *  Ex 3) 240x320 256TFT LCD
 *      VCLK   = 70(freq) * 480(ysize) * 240(hozval) = 8.064MHz
 *      CLKVAL = 70MHz / (8.064MHz * 2) = 3.7202 = 3
 */
#define	Frame_rate	70

#if defined(CONFIG_LCD_MONO320X240)
#define	HOZVAL		((FR_WIDTH/VD_WIDTH) - 1)
#define	PNRMODE		0x1
#define	BPPMODE		0x0
#define BPP			1
#elif defined(CONFIG_LCD_GRAY320X240)
#define	HOZVAL		((FR_WIDTH/VD_WIDTH) - 1)
#define	PNRMODE		0x1
#define	BPPMODE		0x2
#define BPP			4
#elif defined(CONFIG_LCD_STN320X240)
#define	HOZVAL		(((FR_WIDTH*3)/VD_WIDTH) - 1)
#define	PNRMODE		0x2
#define	BPPMODE		0x3
#define BPP			8
#elif defined(CONFIG_LCD_STN640X480)
#elif defined(CONFIG_LCD_TFT320X240)
#endif

#define	VCLK		(Frame_rate * FR_HEIGHT * (HOZVAL+1))
#define	CLKVAL		( (HCLK) / (VCLK*2) )

/* LCDCON1 register definition */
#define bCLKVAL		(CLKVAL<<8)	/* VCLK rate ( MCLK / (VCLK * 2) ) */
#define bMMODE		(0<<7)		/* 0=each frame, 1=defined by the MVAL */
#define bPNRMODE	(PNRMODE<<5)	/* 0=4bit dual,   1=4bit single */
                                       /* 2=8bit single, 3=TFT LCD panel */
#define bBPPMODE	(BPPMODE<<1)	/* 0=1 bpp for STN, Monochrome mode */
										/* 1=2 bpp for STN, 4-level gray mode */
										/* 2=4 bpp for STN, 16-level gray mode */
										/* 3=8 bpp for STN, color mode */
										/* 4=12 bpp for STN, color mode */
										/* 8=1 bpp for TFT */
										/* 9=2 bpp for TFT */
										/* 10=4 bpp for TFT */
										/* 11=8 bpp for TFT */
										/* 12=16 bpp for TFT */
#define bENVID          (0<<0)      /* LCD Diable */
#define bLCDCON1        (bCLKVAL|bMMODE|bPNRMODE|bBPPMODE|bENVID)

/* LCDCON2 register definition */
#define bVBPD			(0<<24)		/* TFT ??? */
#define bLINEVAL        ((FR_HEIGHT - 1)<<14)	/* vertical size of LCD panel */
#define bVFPD			(0<<6)		/* TFT ??? */
#define bVSPW			(0<<0)		/* TFT ??? */
#define bLCDCON2        (bVBPD|bLINEVAL|bVFPD|bVSPW)

/* LCDCON3 register definition */
#define bHBPD		(0<<19)		/* TFT ??? */
#define bWDLY		(0<<19)		/* Delay between VLINE and VCLK */
/* 0=16clock, 1=32clock, 2=64clock, 3=128clock */
#define bHOZVAL		(HOZVAL<<8)	/* horizontal size of LCD panel */
#define bHFPD		(0<<0)		/* TFT ??? */
#define bLINEBLANK	(1<<0)		/* Blank time in one horizontal line duration time */

#if defined(CONFIG_LCD_TFT320X240)
#define bLCDCON3        (bHBPD|bHOZVAL|bHFPD)
#else
#define bLCDCON3        (bWDLY|bHOZVAL|bLINEBLANK)
#endif

/* LCDCON4 register definition */
#define bPALADDEN	(0<<24)		/* TFT : Palette index offset -> 0:enable, 1:disable */
#define bADDVAL		(0<<16)		/* TFT : Palette index offset value */
#define	bMVAL		(13<<8)		/* STN : rate at VM signal will toggle */
#define bHSPW		(0<<0)		/* TFT : Hosizontal sync pulse width */
#define bWLH		(0<<0)		/* STN : VLINE pulse width */
/* 0=16clock, 1=32clock, 2=64clock, 3=128clock */
#if defined(CONFIG_LCD_TFT320X240)
#define bLCDCON4        (bPALADDEN|bADDVAL|bMVAL|bHSPW)
#else
#define bLCDCON4        (bMVAL|bWLH)
#endif

/* LCDCON5 register definition */
#define bSLOWCLKSYNC	(0<<14)		/* STN : SLOW mode select -> 0:disable, 1:enable */
#define bSELFREF		(0<<13)		/* STN : self refresh mode -> 0:disable, 1:enable */
#define bINVVCLK		(0<<10)		/* VCLK active edge -> 0:falling, 1:rising */
#define bINVVLINE		(0<<9)		/* VLINE/HSYNC pulse polarity */
#define bINVVFRAME		(0<<8)		/* VFRAME/VSYNC pulse polarity */
#define bINVVD			(0<<7)		/* VD pulse polarity */
#define bINVVDEN		(0<<6)		/* TFT : VDEN pulse polarity */
#define bINVENDLINE		(0<<4)		/* TFT : LEND pulse polarity */
#define bENLEND			(0<<2)		/* TFT : LEND output select */
#define bBSWP			(1<<1)		/* Byte swap control */
#define bHWSWP			(0<<0)		/* Half-Word swap control */
#define	bLCDCON5		(bSLOWCLKSYNC|bSELFREF|bINVVCLK|bINVVLINE|bINVVFRAME|bINVVD|bINVVDEN|bINVENDLINE|bENLEND|bBSWP|bHWSWP)

/* LCDSADDR1 register definition */
#define bMODESEL        MODESEL		/* 0=Mono, 1=4-gray, 2=16-gray, 3=color */

#define bOFFSIZE         0                       /* will use in virtual screen */
#define bPAGEWIDTH       ((FR_WIDTH*BPP)/16)    /* LCD_XSIZE width to transfer to lcd */


typedef struct FrameBuffer {
	unsigned short	palette [FR_PALETTE];
	unsigned char	pixel[FR_HEIGHT][(FR_WIDTH*BPP)/8];
	int		row, col;
} FB;

struct font_header {
   	unsigned char	type;		/* font type */
        unsigned char	wide;		/* character width in pixels */
        unsigned char	high;		/* char height in pixels */
        unsigned char	baseline;	/* pixels from bottom of glyph */
        unsigned char	count;		/* number of chars in font */
        char		start;		/* starting char in font */
};

extern int do_kbd_init;
extern int do_scroll;

void initLCD(void);
void clrScreen(void);
void clrCharRow(int /* row */);
void putcToFBrc(char /* c */, unsigned int /* row */, unsigned int /* col */);
void setCursor(int /* r */, int /* c */);
int  moveCursor(int /* r */, int /* c */);
void scroll(void);
void putcToFB(char /* c */);
void putcToFBi(char /* c */);
void putcToFBd(char /* c */);
void putsToFB(char * /* s */);
void setRC(int, int);
void incRC(int, int /* int ri, int ci */);
void setRow(int /* int r */);
void setCol(int /* int c */);
int  getCol(void);
int  getRow(void);
#endif /* LCD_HEADER */