1 /*********************************************************************
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>
12 * Copyright (c) 1997, 1998-1999 Dag Brattli <dagb@cs.uit.no>,
13 * All Rights Reserved.
14 * Copyright (c) 2000-2001 Jean Tourrilhes <jt@hpl.hp.com>
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.
21 * Neither Dag Brattli nor University of Tromsø admit liability nor
22 * provide warranty for any of this software. This material is
23 * provided "AS-IS" and at no charge.
25 ********************************************************************/
30 #include <linux/netdevice.h>
32 #include <asm/param.h> /* for HZ */
34 #include <net/irda/irda.h>
35 #include <net/irda/irmod.h>
36 #include <net/irda/irlap.h>
37 #include <net/irda/irlmp.h>
38 #include <net/irda/irda_device.h>
41 * Timeout definitions, some defined in IrLAP p. 92
43 #define POLL_TIMEOUT (450*HZ/1000) /* Must never exceed 500 ms */
44 #define FINAL_TIMEOUT (500*HZ/1000) /* Must never exceed 500 ms */
47 * Normally twice of p-timer. Note 3, IrLAP p. 60 suggests at least twice
48 * duration of the P-timer.
50 #define WD_TIMEOUT (POLL_TIMEOUT*2)
52 #define MEDIABUSY_TIMEOUT (500*HZ/1000) /* 500 msec */
53 #define SMALLBUSY_TIMEOUT (100*HZ/1000) /* 100 msec - IrLAP 6.13.4 */
56 * Slot timer must never exceed 85 ms, and must always be at least 25 ms,
57 * suggested to 75-85 msec by IrDA lite. This doesn't work with a lot of
58 * devices, and other stackes uses a lot more, so it's best we do it as well
60 #define SLOT_TIMEOUT (90*HZ/1000)
63 * We set the query timeout to 100 ms and then expect the value to be
64 * multiplied with the number of slots to product the actual timeout value
66 #define QUERY_TIMEOUT (HZ/10)
68 #define WATCHDOG_TIMEOUT (20*HZ) /* 20 sec */
70 typedef void (*TIMER_CALLBACK)(void *);
72 void irda_start_timer(struct timer_list *ptimer, int timeout, void* data,
73 TIMER_CALLBACK callback);
75 void irlap_start_slot_timer(struct irlap_cb *self, int timeout);
76 void irlap_start_query_timer(struct irlap_cb *self, int timeout);
77 void irlap_start_final_timer(struct irlap_cb *self, int timeout);
78 void irlap_start_wd_timer(struct irlap_cb *self, int timeout);
79 void irlap_start_backoff_timer(struct irlap_cb *self, int timeout);
81 void irlap_start_mbusy_timer(struct irlap_cb *self, int timeout);
82 void irlap_stop_mbusy_timer(struct irlap_cb *);
86 void irlmp_start_watchdog_timer(struct lsap_cb *, int timeout);
87 void irlmp_start_discovery_timer(struct irlmp_cb *, int timeout);
88 void irlmp_start_idle_timer(struct lap_cb *, int timeout);
89 void irlmp_stop_idle_timer(struct lap_cb *self);