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 2005 Develer S.r.l. (http://www.develer.com/)
33 * \brief Generic text LCD driver (interface).
36 * \author Bernardo Innocenti <bernie@develer.com>
37 * \author Stefano Fedrigo <aleph@develer.com>
42 *#* Revision 1.3 2006/07/19 12:56:26 bernie
43 *#* Convert to new Doxygen style.
45 *#* Revision 1.2 2006/02/23 10:59:14 bernie
46 *#* Documentation fixes.
48 *#* Revision 1.1 2005/11/04 18:00:42 bernie
49 *#* Import into DevLib.
51 *#* Revision 1.5 2005/06/14 14:43:43 bernie
52 *#* Add DevLib headers.
54 *#* Revision 1.4 2005/06/06 17:41:57 batt
55 *#* Add lcd_layerSet function.
57 *#* Revision 1.3 2005/06/01 10:36:23 batt
58 *#* Layer: Rename member variables and Doxygenize.
60 *#* Revision 1.2 2005/05/26 08:31:23 batt
61 *#* Add layer hiding/showing.
63 *#* Revision 1.1 2005/05/24 09:17:58 batt
64 *#* Move drivers to top-level.
72 #include <cfg/macros.h>
73 #include <cfg/compiler.h>
74 #include <mware/list.h>
76 #include <stdarg.h> // vprintf()
79 /* flags for lcd_printf() */
80 #define LCD_NORMAL 0 /* Scrittura normale */
81 #define LCD_FILL BV(0) /* Fill rest of line with spaces */
82 #define LCD_CENTER BV(1) /* Center string in line */
83 #define LCD_NOCURSOR BV(2) /* Scrittura senza spostamento cursore */
85 /** Special priority value for lcd_setLayerDepth(). */
86 #define LAYER_HIDDEN -128
88 /* Compute LCD address from x/y coordinates */
89 #define LCD_POS(x,y) ((lcdpos_t)((uint8_t)(x) + (uint8_t)(y) * (uint8_t)LCD_COLS))
90 #define LCD_ROW0 (LCD_COLS * 0)
91 #define LCD_ROW1 (LCD_COLS * 1)
92 #define LCD_ROW2 (LCD_COLS * 2)
93 #define LCD_ROW3 (LCD_COLS * 3)
96 * Overwrapping layer context.
101 * Active layers are linked together in a list
102 * sorted in top to bottom order.
104 DECLARE_NODE_ANON(struct _Layer)
106 /** Current XY address into this layer, for write operations. */
109 /** Priority of this layer (greater in front of lesser). */
113 * Layer backing store buffer.
115 * All writes through the layer are copied into this buffer.
116 * Characters cells with value 0 are transparent with respect
117 * to other layers in the background.
119 char buf[LCD_COLS * LCD_ROWS];
123 /* Global variables */
124 extern Layer *lcd_DefLayer;
126 /* Function prototypes */
127 extern void lcd_init(void);
128 extern void lcd_test(void);
130 extern void lcd_moveCursor(lcdpos_t addr);
131 extern char lcd_setCursor(char state);
133 extern void lcd_setAddr(Layer *layer, lcdpos_t addr);
134 extern void lcd_putChar(char c, Layer *layer);
135 extern int lcd_vprintf(Layer *layer, lcdpos_t addr, uint8_t mode, const char *format, va_list ap) FORMAT(printf, 4, 0);
136 extern int lcd_printf(Layer *layer, lcdpos_t addr, uint8_t mode, const char *format, ...) FORMAT(printf, 4, 5);
137 extern void lcd_clear(Layer *layer);
138 extern void lcd_layerSet(Layer *layer, char c);
139 extern void lcd_clearLine(Layer *layer, int y);
141 extern void lcd_setLayerDepth(Layer *layer, char pri);
142 extern Layer *lcd_newLayer(char pri);
143 extern void lcd_deleteLayer(Layer *layer);
144 extern void lcd_lock(void);
145 extern void lcd_unlock(void);
147 #endif /* DRV_LCD_H */