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#ifndef _LCD_H_
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#define _LCD_H_
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/*
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* LCD interface header file
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*/
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/* Defining CHECKBUSY will check if the LCD is busy. The RW bit of the
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* LCD must connected to a port of the processor for the check busy
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* process to work.
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*
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* If CHECKBUSY is not defined it will instead use a delay loop.
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* The RW bit of the LCD does not need to connected in this case.
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*/
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// #define CHECKBUSY 1
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#ifdef CHECKBUSY
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#define LCD_WAIT lcd_check_busy()
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#else
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#define LCD_WAIT DelayMs(5)
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#endif
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#define MESSAGE_LINE 0x0
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#define LCD_RS LA3
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#define LCD_EN LA1
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#define LCD_RW LA2
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#define LCD_DATA LATD
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#define LCD_DATA_PORT PORTD
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#define LCD_RS_TRIS TRISA3
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#define LCD_EN_TRIS TRISA1
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#define LCD_RW_TRIS TRISA2
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#define LCD_DATA_TRIS TRISD
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#define FOURBIT_MODE 0x0
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#define EIGHTBIT_MODE 0x1
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#define OUTPUT_PIN 0x0
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#define INPUT_PIN 0x1
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#define OUTPUT_DATA 0x0
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#define INPUT_DATA 0x0F
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#define LCD_STROBE() LCD_EN = 1; asm("nop"); asm("nop"); LCD_EN = 0
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#define LCD_STROBE_READ(value) LCD_EN = 1; \
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asm("nop"); asm("nop"); \
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value=LCD_DATA_PORT; \
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LCD_EN = 0;
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#define lcd_cursor(x) lcd_cmd(((x)&0x7F)|0x80)
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#define lcd_clear() lcd_cmd(0x1)
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#define lcd_putch(x) lcd_data(x)
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#define lcd_goto(x) lcd_cmd(0x80+(x));
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#define lcd_cursor_right() lcd_cmd(0x14)
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#define lcd_cursor_left() lcd_cmd(0x10)
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#define lcd_display_shift() lcd_cmd(0x1C)
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#define lcd_home() lcd_cmd(0x2)
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extern void lcd_cmd(unsigned char);
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extern void lcd_data(unsigned char);
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extern void lcd_puts(const char * s);
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extern void lcd_init(unsigned char);
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#endif
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