4 * This file is part of BeRTOS.
6 * Bertos is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License as published by
8 * the Free Software Foundation; either version 2 of the License, or
9 * (at your option) any later version.
11 * This program is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 * GNU General Public License for more details.
16 * You should have received a copy of the GNU General Public License
17 * along with this program; if not, write to the Free Software
18 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
20 * As a special exception, you may use this file as part of a free software
21 * library without restriction. Specifically, if other files instantiate
22 * templates or use macros or inline functions from this file, or you compile
23 * this file and link it with other files to produce an executable, this
24 * file does not by itself cause the resulting executable to be covered by
25 * the GNU General Public License. This exception does not however
26 * invalidate any other reasons why the executable file might be covered by
27 * the GNU General Public License.
29 * Copyright 2003, 2004, 2005, 2006, 2010 Develer S.r.l. (http://www.develer.com/)
30 * Copyright 2001 Bernie Innocenti <bernie@codewiz.org>
34 * \brief Displaytech 32122A LCD driver
36 * \author Bernie Innocenti <bernie@codewiz.org>
37 * \author Stefano Fedrigo <aleph@develer.com>
41 #ifndef HW_LCD_32122A_H
42 #define HW_LCD_32122A_H
44 #include <cpu/types.h>
47 #warning TODO:This is an example implementation, you must implement it!
50 * Predefined LCD PWM contrast values
52 #define LCD_DEF_PWM 145
53 #define LCD_MAX_PWM 505
54 #define LCD_MIN_PWM 130
59 * \name LCD I/O pins/ports
62 #define LCD_RS /* Implement me! */
63 #define LCD_RW /* Implement me! */
64 #define LCD_PE_E1 /* Implement me! */
65 #define LCD_PE_E2 /* Implement me! */
66 #define LCD_DB0 /* Implement me! */
67 #define LCD_DB1 /* Implement me! */
68 #define LCD_DB2 /* Implement me! */
69 #define LCD_DB3 /* Implement me! */
70 #define LCD_DB4 /* Implement me! */
71 #define LCD_DB5 /* Implement me! */
72 #define LCD_DB6 /* Implement me! */
73 #define LCD_DB7 /* Implement me! */
74 #define LCD_PF_DB0 /* Implment me! */
78 * \name LCD bus control macros
81 #define LCD_CLR_A0 do { /* Implement me! */ } while (0)
82 #define LCD_SET_A0 do { /* Implement me! */ } while (0)
83 #define LCD_CLR_RD do { /* Implement me! */ } while (0)
84 #define LCD_SET_RD do { /* Implement me! */ } while (0)
85 #define LCD_CLR_E1 do { /* Implement me! */ } while (0)
86 #define LCD_SET_E1 do { /* Implement me! */ } while (0)
87 #define LCD_CLR_E2 do { /* Implement me! */ } while (0)
88 #define LCD_SET_E2 do { /* Implement me! */ } while (0)
89 #define LCD_SET_E(x) do { (void)x; /* Implement me! */ } while (0)
90 #define LCD_CLR_E(x) do { (void)x; /* Implement me! */ } while (0)
94 * \name Chip select bits for LCD_SET_E()
97 #define LCDF_E1 ( 0/* Implement me! */)
98 #define LCDF_E2 ( 0/* Implement me! */)
100 /** Read from the LCD data bus (DB[0-7]) */
101 #define LCD_WRITE(x) ((void)x)/* Implement me! */
102 /** Write to the LCD data bus (DB[0-7]) */
103 #define LCD_READ (0 /* Implement me! */ )
105 /** Set data bus direction to output (write to display) */
106 #define LCD_DB_OUT /* Implement me! */
108 /** Set data bus direction to input (read from display) */
109 #define LCD_DB_IN /* Implement me! */
111 /** Delay for write (Enable pulse width, 220ns) */
112 #define LCD_DELAY_WRITE \
121 /** Delay for read (Data ouput delay time, 120ns) */
122 #define LCD_DELAY_READ \
131 #define LCD_32122_RESET() do { /* Implement me! */ } while (0)
133 INLINE void lcd_32122a_hw_bus_init(void)
136 IRQ_SAVE_DISABLE(flags);
140 * to init a lcd device.
145 * Data bus is in output state most of the time:
146 * LCD r/w functions assume it is left in output state
154 #endif /* HW_LCD_32122A_H */