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#ifndef _LINUX_TIMER_H

#define _LINUX_TIMER_H

/*

 * DON'T CHANGE THESE!! Most of them are hardcoded into some assembly language

 * as well as being defined here.

 */

/*

 * The timers are:

 *

 * BLANK_TIMER          console screen-saver timer

 *

 * BEEP_TIMER           console beep timer

 *

 * RS_TIMER             timer for the RS-232 ports

 *

 * SWAP_TIMER           timer for the background pageout daemon

 *

 * HD_TIMER             harddisk timer

 *

 * HD_TIMER2            (atdisk2 patches)

 *

 * FLOPPY_TIMER         floppy disk timer (not used right now)

 *

 * SCSI_TIMER           scsi.c timeout timer

 *

 * NET_TIMER            tcp/ip timeout timer

 *

 * COPRO_TIMER          387 timeout for buggy hardware..

 *

 * QIC02_TAPE_TIMER     timer for QIC-02 tape driver (it's not hardcoded)

 *

 * MCD_TIMER            Mitsumi CD-ROM Timer

 *

 * GSCD_TIMER           Goldstar CD-ROM Timer

 *

 */

#define BLANK_TIMER     0

#define BEEP_TIMER      1

#define RS_TIMER        2

#define SWAP_TIMER      3

#define HD_TIMER        16

#define FLOPPY_TIMER    17

#define SCSI_TIMER      18

#define NET_TIMER       19

#define SOUND_TIMER     20

#define COPRO_TIMER     21

#define QIC02_TAPE_TIMER        22      /* hhb */

#define MCD_TIMER       23

#define HD_TIMER2       24

#define GSCD_TIMER      25

#define DIGI_TIMER      29

struct timer_struct {

        unsigned long expires;

        void (*fn)(void);

};

extern unsigned long timer_active;

extern struct timer_struct timer_table[32];

/*

 * This is completely separate from the above, and is the

 * "new and improved" way of handling timers more dynamically.

 * Hopefully efficient and general enough for most things.

 *

 * The "hardcoded" timers above are still useful for well-

 * defined problems, but the timer-list is probably better

 * when you need multiple outstanding timers or similar.

 *

 * The "data" field is in case you want to use the same

 * timeout function for several timeouts. You can use this

 * to distinguish between the different invocations.

 */

struct timer_list {

        struct timer_list *next;

        struct timer_list *prev;

        unsigned long expires;

        unsigned long data;

        void (*function)(unsigned long);

};

extern void add_timer(struct timer_list * timer);

extern int  del_timer(struct timer_list * timer);

extern void it_real_fn(unsigned long);

extern inline void init_timer(struct timer_list * timer)

{

        timer->next = NULL;

        timer->prev = NULL;

}

#endif