sed1335f.lib

Zword公司的Rabbit2000系列相关文件

/*** BeginHeader */
#ifndef __SED1335F_LIB
#define __SED1335F_LIB
/*** EndHeader */

/* START LIBRARY DESCRIPTION *********************************************
SED1335F.LIB
Copyright (c) 2001, Z-World

DESCRIPTION:	Low-level driver for the SED1335F Graphic Chip

SUPPORT LIBS:	

END DESCRIPTION **********************************************************/


/*** BeginHeader glBuf, glbuf_offset, glbuf_xpc, xpc_temp */
//
// Requirement
// -----------
// This section required for all LCD driver designs. The only values that
// will change in this section (from design to design) are the LCD_XS,
// LCD_YS, PIXEL_XS and PIXEL_XS macro's. 
//

// LCD display resolution...these MACRO's are for the customer to use in
// their application program.  
#define LCD_XS					320			// Number of pixels on the x-axis			
#define LCD_YS					240			// Number of pixels on the y-axis


// Graphic Buffer MACRO's
// 1. PIXEL_XS needs to be evenly divisble by 8.
// 2. These MACRO's are intended for internal use only.
#define	PIXEL_XS				320			//	Horz Pixels = [0..PIXEL_XS-1]
#define	PIXEL_YS				240 			//	Vert Pixels = [0..PIXEL_YS-1]
#define	PIXGROUP				PIXEL_XS/8	//	Horz Byte Groups
#define	XMEM_BUF_SIZE   	(PIXEL_XS * PIXEL_YS)/8

extern unsigned long glBuf;		  	// Display buffer XMEM physical addr
extern unsigned int glbuf_offset;  	// Display buffer logical offset addr
extern unsigned int glbuf_xpc;     	// Display buffer XPC page address
extern unsigned int xpc_temp;     	// Temp variable for XPC control
extern unsigned int glPageAddr;

//
// Requirement
// -----------
// The following is the list of functions that are required to be
// in this Library. If your design doesn't have one of the features
// that the function provides, then you must provide a NULL function
// so that graphic.lib will compile properly.
// 
//	// Initializes the LCD
//    void _glInit(void);
//
// // Takes the data from the glBuf which the graphic routines created
// // and displays it on the LCD
//    void _glSwapData( void );
//
//	// Controls the LCD backlight  
//	   void glBackLight( int onOff );
//
//	// Controls turning ON/OFF the display...display data is retained
//  	void glDispOnOff( int onOff  );
//
//	// Control the contrast on the display..not implemented for this LCD. 
//	   void glContrast( int Level );
//
// Requirement
// -----------
// Must have the following code in the _glInit function to allocate
// memory for the graphic routines and to convert the ulong XMEM
// pointer to a normalized offset and XPC pointer.  
//
//		nodebug
//		void _glInit(void)
//		{
//				// Must initialize the Graphic buffer pointer before
//				// using any graphic functions.
//				glBuf = xalloc(XMEM_BUF_SIZE);
//
//				// Initialize global XMEM offset and XPC pointers
//				#asm
//				ld    de, (glBuf)
//				ld    bc, (glBuf + 2)
//		
//				; Convert DE:BC to a normalized XMEM pointer 
//				call	LongToXaddr		; DE = offset of glBuf, A = xpc of glBuf
//				ld    (glbuf_xpc),a
//				ld    (glbuf_offset), de
//				#endasm
//
//				// Initialize the I/O strobe for the LCD
//				_glInitStrobe();
//
//
//				//Other Initialization 
//				//	:
//				//	:
//				//	:
//		}
//
//
//
//
// Requirement
// -----------
// Declare variables outside of the Start/End header section
//
/*** EndHeader */

unsigned long glBuf;		   	// Display buffer XMEM physical address
unsigned int glbuf_offset;  	// Display buffer logical offset address
unsigned int glbuf_xpc;     	// Display buffer XPC page address
unsigned int xpc_temp;     	// Temp variable for XPC control
unsigned int glPageAddr;
//  END OF DRIVER REQUIREMENTS!!!!!





/*** BeginHeader */
#define	SEDCR			0xE001				//	SED1335 Command Register
#define	SEDDR			0xE000				//	SED1335 Data Register
#define  TCYC_DELAY  $\
	nop               $\
	nop               
										

// Use Port E bit 7 for LCD Chip Select with 4 wait states
#define LCDSTROBE			0x80
#define LCDCSREGISTER	IB7CR
#define LCDCSSHADOW		IB7CRShadow
#define LCDCSCONFIG		0x88
/*** EndHeader */



/*** BeginHeader _glInitStrobe */
void _glInitStrobe(void);
/*** EndHeader */

/* START _FUNCTION DESCRIPTION ********************************************
_glInitStrobe			<SED1335F.LIB>
SYNTAX:			void _glInitStrobe(void);

DESCRIPTION:	This function initializes I/O port E, bit 7 to access
 					the LCD display. Port E bit 7 is setup to be an I/O Read
 					and Write strobe with 4 wait states. This function is non-
 					reentrant and is an internal function.
               
PARAMETER:		None.

RETURN VALUE:	None.

SEE ALSO:		_glInitController 

END DESCRIPTION **********************************************************/

nodebug
void _glInitStrobe(void)
{
	// Initialize Port E bit to be a normal I/O pin
	WrPortI(PEFR, &PEFRShadow, (PEFRShadow|LCDSTROBE));

	// Initialize Port E bit to be an output pin
	WrPortI(PEDDR, &PEDDRShadow, (PEDDRShadow|LCDSTROBE));

	// Initialize Port E bit to be a chip select. 
	// Set to be a I/O Read and Write strobe with 7 wait states.
	// and writes allowed.
	 
	WrPortI(LCDCSREGISTER, &LCDCSSHADOW, LCDCSCONFIG);

	// Set Port E bit to be clocked by PCLK/2
	WrPortI(PECR, &PECRShadow, (PECRShadow & ~0xFF));
}


/*** BeginHeader _glInitLCDChip */
void _glInitLCDChip(void);
/*** EndHeader */

/* START _FUNCTION DESCRIPTION ********************************************
_glInitLCDChip				<SED1335F.LIB>

SYNTAX:	      void _glInitLCDChip(void)

DESCRIPTION:	This functions initalizes the SED1335F IC chip with the
               required parameters to access an 320x240 LCD display. This 
               function is non-reentrant and is an internal function.
               
PARAMETER:		None.
    
RETURN VALUE:	None. 
			
SEE ALSO:		graphic.lib, _glDispOnOff, _glContrast, _glBackLight
               _glSwapData

END DESCRIPTION **********************************************************/

nodebug
void _glInitLCDChip(void)
{

	auto unsigned long timeDelay;

	// Make there's a min of 3ms before accessing the controller chip
	timeDelay = MS_TIMER + 4;
   while( (long) (MS_TIMER - timeDelay) < 0 );
#asm
	ld		bc,SEDCR			; INIT DISPLAY
	ld		a,0x40
	ioe	ld (bc),a 			;	out	(c),a
	TCYC_DELAY
					
	dec	bc
	ld		a,0x30				; Single Panel, LCD Mode
	ioe	ld (bc),a 			;	out	(c),a
	TCYC_DELAY

	ld		a,0x07h				; 8-Bit Char Width, 16-line AC Drive
	ioe	ld (bc),a			;	out	(c),a
	TCYC_DELAY
		
	ld		a,000h				; 1-Bit Char Width
	ioe	ld (bc),a			;	out	(c),a
	TCYC_DELAY

	ld		a,40					; 40 Bytes per Line
	ioe	ld (bc),a			;	out	(c),a
	TCYC_DELAY

	ld		a,51					; Set TC/R to Reduce Jitter ***
;	ld		a,63					; Set TC/R to Reduce Snow
	ioe	ld (bc),a			;	out	(c),a
	TCYC_DELAY

	ld		a,239					; 240 Lines per Frame
	ioe	ld (bc),a			;	out	(c),a
	TCYC_DELAY

	ld		a,40					; 40 Byte Virt Screen Width (LSB First)
	ioe	ld (bc),a			;	out	(c),a
	TCYC_DELAY
	
	ld		a,0
	ioe	ld (bc),a			;	out	(c),a
	TCYC_DELAY
	
	inc	bc						; SET SCROLL
	ld		a,044h
	ioe	ld (bc),a			;	out	(c),a
	TCYC_DELAY
	
	dec	bc
	ld		a,000h				; First Screen @ 00000h (SAD1)
	ioe	ld (bc),a			;	out	(c),a
	TCYC_DELAY
	
	ld		a,000h
	ioe	ld (bc),a			;	out	(c),a
	TCYC_DELAY
		
	ld		a,239					; First Screen Number of Lines
	ioe	ld (bc),a			;	out	(c),a
	TCYC_DELAY	

	ld		a,000h				; Second Screen @ 4000h (SAD2)
	ioe	ld (bc),a			;	out	(c),a
	TCYC_DELAY

	ld		a,040h
	ioe	ld (bc),a			;	out	(c),a
	TCYC_DELAY

	ld		a,239					; Second Screen Number of Lines
	ioe	ld (bc),a			;	out	(c),a
	TCYC_DELAY
	
	inc	bc						; SET OVERLAY (Two Layer OR)
	ld		a,05Bh
	ioe	ld (bc),a			;	out	(c),a
	TCYC_DELAY
	
	dec	bc
	ld		a,00Ch
	ioe	ld (bc),a			;	out	(c),a
	TCYC_DELAY

	inc	bc						; Cursor Auto Increment (Right)
	ld		a,04Ch
	ioe	ld (bc),a			;	out	(c),a
	TCYC_DELAY

	ld		a,05Ah				; Zero Horizontal Scroll (HDOT = 0)
	ioe	ld (bc),a			;	out	(c),a
	TCYC_DELAY

	dec	bc
	ld		a,000h
	ioe	ld (bc),a			;	out	(c),a
	TCYC_DELAY

	inc	bc						; Show Page 0
	ld		a,059h
	ioe	ld (bc),a			;	out	(c),a
	TCYC_DELAY
	
	dec	bc
	ld		a,004h
	ioe	ld (bc),a  			;	out	(c),a
	TCYC_DELAY

#endasm
}

/*** BeginHeader _glInit */
void _glInit(void);
/*** EndHeader */

/* START _FUNCTION DESCRIPTION ********************************************
_glInit				<SED1335F.LIB>

SYNTAX:	      void _glInit(void);

DESCRIPTION:   This functions initializes the graphic chip and sets up
               graphic driver for use by the application program. This
					function is non-reentrant and is an internal function.
                              
PARAMETER:		None.
    
RETURN VALUE:	None.
			
SEE ALSO:		graphic.lib, _glDispOnOff, _glContrast, _glBackLight
               _glInitLCDChip, _glSwapData, _glPlotRealtime

END DESCRIPTION **********************************************************/

nodebug
void _glInit(void)
{
	_glInitStrobe();	
	// Allocate XMEM for the Graphic buffer
	glBuf = xalloc(XMEM_BUF_SIZE);

	// Initialize global glBuf XMEM offset and XPC pointer
	#asm
		ld		de, (glBuf)
		ld    bc, (glBuf + 2)
	
		; Convert BC:DE to a normalized XMEM pointer 
		call	LongToXaddr			; DE = offset of glBuf, A = xpc of glBuf
		ld    (glbuf_xpc),a
		ld    (glbuf_offset), de
	#endasm


	
	// Initialize SED1535F controller chip
	_glInitLCDChip();

	// Initially set upper page (located at 0x4000) to be hidden 
	glPageAddr = 0x4000;			

	// Initially set the graphic's buffer to be unlocked   
	glLock = 0;
	
	// Clear the screen before turning ON the display
	glBlankScreen();

	// Turn ON the display	
	_glDispOnOff( 1 );

	// Set pixel color to Black
	glSetBrushType(PIXBLACK);

	// Initialize the glprintf() function stepping parameters
	glSetPfStep(1,0);

	// Disable Animation mode
	glAnimation(0);

	// Disable glPlotDot realtime LCD display accesses 
	glRealtime(0);
}

/*** BeginHeader _glSwapData, animation */
void _glSwapData(void);
extern int animation;
/*** EndHeader */

int animation;

/* START _FUNCTION DESCRIPTION *******************************************
_glSwapData				<SED1335F.LIB>

SYNTAX:	      _glSwapData(void);

DESCRIPTION:   This function takes the LCD display data from the graphic
					buffer (glBuf) and writes it to the LCD display. This
					function is non-reentrant and is an internal function. 

PARAMETER1:    None.
   
RETURN VALUE:	None.
			
SEE ALSO:		graphic.lib, _glInit, _glDispOnOff, _glContrast,
               _glBackLight

END DESCRIPTION **********************************************************/

nodebug
root void _glSwapData(void)
{
		static int buf_size;