4 * Copyright 2005 Develer S.r.l. (http://www.develer.com/)
5 * This file is part of DevLib - See README.devlib for information.
8 * \brief Generic text LCD driver (interface).
11 * \author Bernardo Innocenti <bernie@develer.com>
12 * \author Stefano Fedrigo <aleph@develer.com>
17 *#* Revision 1.3 2006/07/19 12:56:26 bernie
18 *#* Convert to new Doxygen style.
20 *#* Revision 1.2 2006/02/23 10:59:14 bernie
21 *#* Documentation fixes.
23 *#* Revision 1.1 2005/11/04 18:00:42 bernie
24 *#* Import into DevLib.
26 *#* Revision 1.5 2005/06/14 14:43:43 bernie
27 *#* Add DevLib headers.
29 *#* Revision 1.4 2005/06/06 17:41:57 batt
30 *#* Add lcd_layerSet function.
32 *#* Revision 1.3 2005/06/01 10:36:23 batt
33 *#* Layer: Rename member variables and Doxygenize.
35 *#* Revision 1.2 2005/05/26 08:31:23 batt
36 *#* Add layer hiding/showing.
38 *#* Revision 1.1 2005/05/24 09:17:58 batt
39 *#* Move drivers to top-level.
47 #include <cfg/macros.h>
48 #include <cfg/compiler.h>
49 #include <mware/list.h>
51 #include <stdarg.h> // vprintf()
54 /* flags for lcd_printf() */
55 #define LCD_NORMAL 0 /* Scrittura normale */
56 #define LCD_FILL BV(0) /* Fill rest of line with spaces */
57 #define LCD_CENTER BV(1) /* Center string in line */
58 #define LCD_NOCURSOR BV(2) /* Scrittura senza spostamento cursore */
60 /** Special priority value for lcd_setLayerDepth(). */
61 #define LAYER_HIDDEN -128
63 /* Compute LCD address from x/y coordinates */
64 #define LCD_POS(x,y) ((lcdpos_t)((uint8_t)(x) + (uint8_t)(y) * (uint8_t)LCD_COLS))
65 #define LCD_ROW0 (LCD_COLS * 0)
66 #define LCD_ROW1 (LCD_COLS * 1)
67 #define LCD_ROW2 (LCD_COLS * 2)
68 #define LCD_ROW3 (LCD_COLS * 3)
71 * Overwrapping layer context.
76 * Active layers are linked together in a list
77 * sorted in top to bottom order.
79 DECLARE_NODE_ANON(struct _Layer)
81 /** Current XY address into this layer, for write operations. */
84 /** Priority of this layer (greater in front of lesser). */
88 * Layer backing store buffer.
90 * All writes through the layer are copied into this buffer.
91 * Characters cells with value 0 are transparent with respect
92 * to other layers in the background.
94 char buf[LCD_COLS * LCD_ROWS];
98 /* Global variables */
99 extern Layer *lcd_DefLayer;
101 /* Function prototypes */
102 extern void lcd_init(void);
103 extern void lcd_test(void);
105 extern void lcd_moveCursor(lcdpos_t addr);
106 extern char lcd_setCursor(char state);
108 extern void lcd_setAddr(Layer *layer, lcdpos_t addr);
109 extern void lcd_putChar(char c, Layer *layer);
110 extern int lcd_vprintf(Layer *layer, lcdpos_t addr, uint8_t mode, const char *format, va_list ap) FORMAT(printf, 4, 0);
111 extern int lcd_printf(Layer *layer, lcdpos_t addr, uint8_t mode, const char *format, ...) FORMAT(printf, 4, 5);
112 extern void lcd_clear(Layer *layer);
113 extern void lcd_layerSet(Layer *layer, char c);
114 extern void lcd_clearLine(Layer *layer, int y);
116 extern void lcd_setLayerDepth(Layer *layer, char pri);
117 extern Layer *lcd_newLayer(char pri);
118 extern void lcd_deleteLayer(Layer *layer);
119 extern void lcd_lock(void);
120 extern void lcd_unlock(void);
122 #endif /* DRV_LCD_H */