syslcd.h

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/* sngLcd.h - SBC ARM7 LCD driver header file */

/* Copyright 1984-2001 Wind River Systems, Inc. */
#include "copyright_wrs.h"

/*
modification history
--------------------
01d,16jul02,m_h  C++ protection
01c,26apr01,m_h  convert tabs to spaces for readability
01b,19apr01,m_h  add carriage routine at EOF to avoid compile warning
01a,10apr01,g_h  created.
*/

#ifndef __INCsysLcdh
#define __INCsysLcdh
 
#ifdef __cplusplus
extern "C" {
#endif

/********************************************************************************
 *  LCD resolution
 ********************************************************************************/
#define LCD_MAX_LINES            2
#define LCD_MIN_LINES            1
#define LCD_MAX_COLUMNS         16
#define LCD_MIN_COLUMNS          1
#define LCD_LINE_POS_MASK     0xFF

/********************************************************************************
 *  LCD Commands
 ********************************************************************************/
#define LCD_INIT_COMMAND        0x30
#define LCD_8BIT_2LINE_COMMAND  0x3C
#define LCD_OFF_COMMAND         0x08
#define LCD_ON_COMMAND          0x0C
#define LCD_CLEAR_COMMAND       0x01
#define LCD_INCR_MODE_COMMAND   0x06

/********************************************************************************
 *  LCD macros
 ********************************************************************************/
#define LCD_WRITE_COMMAND(val)  (*((volatile char *)0x3fd4100) = (char)(val))
#define LCD_WRITE(val)          (*((volatile char *)0x3fd4101) = (char)(val))
#define LCD_DELAY(delay)        {volatile int foo; for(foo=0;foo<delay;foo++);}

/* function prototypes */

#if defined(__STDC__)

extern STATUS sysLcdWriteString(char *string, char lineNumber, char columns);
extern void   sysLcdInit(void);
extern void   sysLcdClear(void);
extern void   sysLcdWrite(char ch);
extern STATUS sysLcdSetPos(char line, char column);

#else   /* __STDC__ */

extern STATUS sysLcdWriteString();
extern void   sysLcdInit();
extern void   sysLcdClear();
extern void   sysLcdWrite();
extern STATUS sysLcdSetPos();

#endif  /* __STDC__ */ 

#ifdef __cplusplus
}
#endif

#endif  /* __INCsysLcdh */