Subversion Repositories or1k

#ifndef __NWBUTTON_H

#define __NWBUTTON_H

/*

 *      NetWinder Button Driver-

 *      Copyright (C) Alex Holden <alex@linuxhacker.org> 1998, 1999.

 */

#ifdef __NWBUTTON_C     /* Actually compiling the driver itself */

/* Various defines: */

#define NUM_PRESSES_REBOOT 2    /* How many presses to activate shutdown */

#define BUTTON_DELAY 30         /* How many jiffies for sequence to end */

#define VERSION "0.3"           /* Driver version number */

#define BUTTON_MINOR 158        /* Major 10, Minor 158, /dev/nwbutton */

/* Structure definitions: */

struct button_callback {

        void (*callback) (void);

        int count;

};

/* Function prototypes: */

static void button_sequence_finished (unsigned long parameters);

static void button_handler (int irq, void *dev_id, struct pt_regs *regs);

static int button_read (struct file *filp, char *buffer,

                        size_t count, loff_t *ppos);

int button_init (void);

int button_add_callback (void (*callback) (void), int count);

int button_del_callback (void (*callback) (void));

static void button_consume_callbacks (int bpcount);

#ifdef MODULE

int init_module (void);

void cleanup_module (void);

#endif /* MODULE */

#else /* Not compiling the driver itself */

extern int button_add_callback (void (*callback) (void), int count);

extern int button_del_callback (void (*callback) (void));

#endif /* __NWBUTTON_C */

#endif /* __NWBUTTON_H */