#ifndef _LCD_H_
#define _LCD_H_

#define LCD_EVENT_INIT		0x00	/* lcd initialized */
#define LCD_EVENT_UPDATE	0x01	/* update data */
#define LCD_EVENT_BUTTON1	0x02	/* button1 pressed */
#define LCD_EVENT_BUTTON2	0x03	/* button2 pressed */
#define LCD_EVENT_BACKLIGHT	0x04	/* backlight timeout */

struct lcddev; /* private data */

struct lcddev * lcd_open(const char *device,
                         int (*event_callback)(struct lcddev *dev, int event, void *privdata),
                         void *event_privdata);

void lcd_close(struct lcddev *dev);
void lcd_reset(struct lcddev *dev);

#define LCD_BACKLIGHT_OFF	(0)
#define LCD_BACKLIGHT_ON	(-1)

int lcd_trigger_backlight(struct lcddev *dev, int timeout);
int lcd_setlines(struct lcddev *dev, int scrollspeed, const char *line1, const char *line2);

#endif /* _LCD_H_ */