projects / deliverable / linux.git / blame
| Commit | Line | Data |
|---|---|---|
| 1da177e4 LT |
1 | /********************************************************************* |
| 2 | * | |
| 3 | * Filename: timer.h | |
| 4 | * Version: | |
| 5 | * Description: | |
| 6 | * Status: Experimental. | |
| 7 | * Author: Dag Brattli <dagb@cs.uit.no> | |
| 8 | * Created at: Sat Aug 16 00:59:29 1997 | |
| 9 | * Modified at: Thu Oct 7 12:25:24 1999 | |
| 10 | * Modified by: Dag Brattli <dagb@cs.uit.no> | |
| 11 | * | |
| 12 | * Copyright (c) 1997, 1998-1999 Dag Brattli <dagb@cs.uit.no>, | |
| 13 | * All Rights Reserved. | |
| 14 | * Copyright (c) 2000-2002 Jean Tourrilhes <jt@hpl.hp.com> | |
| 15 | * | |
| 16 | * This program is free software; you can redistribute it and/or | |
| 17 | * modify it under the terms of the GNU General Public License as | |
| 18 | * published by the Free Software Foundation; either version 2 of | |
| 19 | * the License, or (at your option) any later version. | |
| 20 | * | |
| 121e70b6 | 21 | * Neither Dag Brattli nor University of Tromsø admit liability nor |
| 1da177e4 LT |
22 | * provide warranty for any of this software. This material is |
| 23 | * provided "AS-IS" and at no charge. | |
| 24 | * | |
| 25 | ********************************************************************/ | |
| 26 | ||
| 27 | #ifndef TIMER_H | |
| 28 | #define TIMER_H | |
| 29 | ||
| 30 | #include <linux/timer.h> | |
| d7fe0f24 | 31 | #include <linux/jiffies.h> |
| 1da177e4 LT |
32 | |
| 33 | #include <asm/param.h> /* for HZ */ | |
| 34 | ||
| 35 | #include <net/irda/irda.h> | |
| 36 | ||
| 37 | /* A few forward declarations (to make compiler happy) */ | |
| 38 | struct irlmp_cb; | |
| 39 | struct irlap_cb; | |
| 40 | struct lsap_cb; | |
| 41 | struct lap_cb; | |
| 42 | ||
| 43 | /* | |
| 44 | * Timeout definitions, some defined in IrLAP 6.13.5 - p. 92 | |
| 45 | */ | |
| 46 | #define POLL_TIMEOUT (450*HZ/1000) /* Must never exceed 500 ms */ | |
| 47 | #define FINAL_TIMEOUT (500*HZ/1000) /* Must never exceed 500 ms */ | |
| 48 | ||
| 49 | /* | |
| 50 | * Normally twice of p-timer. Note 3, IrLAP 6.3.11.2 - p. 60 suggests | |
| 51 | * at least twice duration of the P-timer. | |
| 52 | */ | |
| 53 | #define WD_TIMEOUT (POLL_TIMEOUT*2) | |
| 54 | ||
| 55 | #define MEDIABUSY_TIMEOUT (500*HZ/1000) /* 500 msec */ | |
| 56 | #define SMALLBUSY_TIMEOUT (100*HZ/1000) /* 100 msec - IrLAP 6.13.4 */ | |
| 57 | ||
| 58 | /* | |
| 59 | * Slot timer must never exceed 85 ms, and must always be at least 25 ms, | |
| 60 | * suggested to 75-85 msec by IrDA lite. This doesn't work with a lot of | |
| 61 | * devices, and other stackes uses a lot more, so it's best we do it as well | |
| 62 | * (Note : this is the default value and sysctl overides it - Jean II) | |
| 63 | */ | |
| 64 | #define SLOT_TIMEOUT (90*HZ/1000) | |
| 65 | ||
| 66 | /* | |
| 67 | * The latest discovery frame (XID) is longer due to the extra discovery | |
| 68 | * information (hints, device name...). This is its extra length. | |
| 69 | * We use that when setting the query timeout. Jean II | |
| 70 | */ | |
| 71 | #define XIDEXTRA_TIMEOUT (34*HZ/1000) /* 34 msec */ | |
| 72 | ||
| 73 | #define WATCHDOG_TIMEOUT (20*HZ) /* 20 sec */ | |
| 74 | ||
| 75 | typedef void (*TIMER_CALLBACK)(void *); | |
| 76 | ||
| 77 | static inline void irda_start_timer(struct timer_list *ptimer, int timeout, | |
| 78 | void* data, TIMER_CALLBACK callback) | |
| 79 | { | |
| 80 | ptimer->function = (void (*)(unsigned long)) callback; | |
| 81 | ptimer->data = (unsigned long) data; | |
| 82 | ||
| 83 | /* Set new value for timer (update or add timer). | |
| 84 | * We use mod_timer() because it's more efficient and also | |
| 85 | * safer with respect to race conditions - Jean II */ | |
| 86 | mod_timer(ptimer, jiffies + timeout); | |
| 87 | } | |
| 88 | ||
| 89 | ||
| 90 | void irlap_start_slot_timer(struct irlap_cb *self, int timeout); | |
| 91 | void irlap_start_query_timer(struct irlap_cb *self, int S, int s); | |
| 92 | void irlap_start_final_timer(struct irlap_cb *self, int timeout); | |
| 93 | void irlap_start_wd_timer(struct irlap_cb *self, int timeout); | |
| 94 | void irlap_start_backoff_timer(struct irlap_cb *self, int timeout); | |
| 95 | ||
| 96 | void irlap_start_mbusy_timer(struct irlap_cb *self, int timeout); | |
| 97 | void irlap_stop_mbusy_timer(struct irlap_cb *); | |
| 98 | ||
| 99 | void irlmp_start_watchdog_timer(struct lsap_cb *, int timeout); | |
| 100 | void irlmp_start_discovery_timer(struct irlmp_cb *, int timeout); | |
| 101 | void irlmp_start_idle_timer(struct lap_cb *, int timeout); | |
| 102 | void irlmp_stop_idle_timer(struct lap_cb *self); | |
| 103 | ||
| 104 | #endif | |
| 105 |