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lcd.h
Go to the documentation of this file.
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/*
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* The contents of this file are subject to the Mozilla Public License
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* Version 1.0 (the "License"); you may not use this file except in
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* compliance with the License. You may obtain a copy of the License
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* at http://www.mozilla.org/MPL/
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*
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* Software distributed under the License is distributed on an "AS IS"
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* basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
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* the License for the specific language governing rights and
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* limitations under the License.
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*
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* The Original Code is legOS code, released October 17, 1999.
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*
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* The Initial Developer of the Original Code is Markus L. Noga.
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* Portions created by Markus L. Noga are Copyright (C) 1999
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* Markus L. Noga. All Rights Reserved.
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*
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* Contributor(s): Markus L. Noga <markus@noga.de>
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*/
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#ifndef __sys_lcd_h__
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#define __sys_lcd_h__
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#ifdef __cplusplus
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extern
"C"
{
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#endif
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#include <
config.h
>
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#include <
rom/lcd.h
>
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//
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// Definitions
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//
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// Offsets and size of the LCD shadow buffer used to speed up
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// lcd_refresh()
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//
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#define LCD_SHORT_CMD 0
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#define LCD_LONG_CMD 3
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#define LCD_DATA_OFFSET 5
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#define LCD_DATA_SIZE 9
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// PCF8566 LCD driver commands
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//
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#define LCD_MODE_SET 0x40
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#define LCD_ENABLE 0x08
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#define LCD_DISABLE 0x00
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// LCD i2c bus constants
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//
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#define LCD_DEV_ID 0x7c
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#define I2C_WRITE 0
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#define I2C_READ 1
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#define SCL 5
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#define SDA 6
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//
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// Variables
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//
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extern
unsigned
char
display_memory
[];
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//
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// Functions
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//
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extern
void
lcd_init
(
void
);
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extern
void
lcd_power_on
(
void
);
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extern
void
lcd_power_off
(
void
);
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extern
void
lcd_refresh
(
void
);
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extern
void
lcd_refresh_next_byte
(
void
)
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#ifdef CONF_RCX_COMPILER
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__attribute__ ((rcx_interrupt))
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#endif
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;
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#ifdef __cplusplus
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}
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#endif
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#endif // __sys_lcd_h__
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Original code copyright 1998-2005 by the authors.
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