#ifndef _LCD_H_
#define _LCD_H_

struct lcddev; /* private data */

struct lcddev * lcd_open(const char *devicename, int backlight_timeout);
void lcd_close(struct lcddev *dev);

int lcd_set_backlight(struct lcddev *dev, int enable);
int lcd_setlines(struct lcddev *dev, const char *line1, const char *line2);

#define LCDPAGE_EVENT_BUTTON1		0xFFFFFF01 /* button "enter" pressed */
#define LCDPAGE_EVENT_BUTTON2		0xFFFFFF02 /* button "select" pressed */
#define LCDPAGE_EVENT_BACKLIGHT		0xFFFFFF03 /* backlight timeout */
#define LCDPAGE_EVENT_ENTER		0xFFFFFF05 /* page entered */
#define LCDPAGE_EVENT_EXIT		0xFFFFFF06 /* page left */
#define LCDPAGE_EVENT_UPDATE		0xFFFFFF07 /* update content */
#define LCDPAGE_COMMAND_NEXT		0xFFFFFF80 /* change to next page */

int lcd_addpage_cb(struct lcddev *dev,
		   int priority,
		   int (*event_callback)(struct lcddev *dev, int event, void *privdata),
		   void *event_privdata);

#endif /* _LCD_H_ */