+++ /dev/null
-/*********************************************************************
- *
- * Filename: timer.c
- * Version:
- * Description:
- * Status: Experimental.
- * Author: Dag Brattli <dagb@cs.uit.no>
- * Created at: Sat Aug 16 00:59:29 1997
- * Modified at: Wed Dec 8 12:50:34 1999
- * Modified by: Dag Brattli <dagb@cs.uit.no>
- *
- * Copyright (c) 1997, 1999 Dag Brattli <dagb@cs.uit.no>,
- * All Rights Reserved.
- * Copyright (c) 2000-2002 Jean Tourrilhes <jt@hpl.hp.com>
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation; either version 2 of
- * the License, or (at your option) any later version.
- *
- * Neither Dag Brattli nor University of Tromsø admit liability nor
- * provide warranty for any of this software. This material is
- * provided "AS-IS" and at no charge.
- *
- ********************************************************************/
-
-#include <linux/delay.h>
-
-#include <net/irda/timer.h>
-#include <net/irda/irda.h>
-#include <net/irda/irda_device.h>
-#include <net/irda/irlap.h>
-#include <net/irda/irlmp.h>
-
-extern int sysctl_slot_timeout;
-
-static void irlap_slot_timer_expired(void* data);
-static void irlap_query_timer_expired(void* data);
-static void irlap_final_timer_expired(void* data);
-static void irlap_wd_timer_expired(void* data);
-static void irlap_backoff_timer_expired(void* data);
-static void irlap_media_busy_expired(void* data);
-
-void irlap_start_slot_timer(struct irlap_cb *self, int timeout)
-{
- irda_start_timer(&self->slot_timer, timeout, (void *) self,
- irlap_slot_timer_expired);
-}
-
-void irlap_start_query_timer(struct irlap_cb *self, int S, int s)
-{
- int timeout;
-
- /* Calculate when the peer discovery should end. Normally, we
- * get the end-of-discovery frame, so this is just in case
- * we miss it.
- * Basically, we multiply the number of remaining slots by our
- * slot time, plus add some extra time to properly receive the last
- * discovery packet (which is longer due to extra discovery info),
- * to avoid messing with for incoming connections requests and
- * to accommodate devices that perform discovery slower than us.
- * Jean II */
- timeout = msecs_to_jiffies(sysctl_slot_timeout) * (S - s)
- + XIDEXTRA_TIMEOUT + SMALLBUSY_TIMEOUT;
-
- /* Set or re-set the timer. We reset the timer for each received
- * discovery query, which allow us to automatically adjust to
- * the speed of the peer discovery (faster or slower). Jean II */
- irda_start_timer( &self->query_timer, timeout, (void *) self,
- irlap_query_timer_expired);
-}
-
-void irlap_start_final_timer(struct irlap_cb *self, int timeout)
-{
- irda_start_timer(&self->final_timer, timeout, (void *) self,
- irlap_final_timer_expired);
-}
-
-void irlap_start_wd_timer(struct irlap_cb *self, int timeout)
-{
- irda_start_timer(&self->wd_timer, timeout, (void *) self,
- irlap_wd_timer_expired);
-}
-
-void irlap_start_backoff_timer(struct irlap_cb *self, int timeout)
-{
- irda_start_timer(&self->backoff_timer, timeout, (void *) self,
- irlap_backoff_timer_expired);
-}
-
-void irlap_start_mbusy_timer(struct irlap_cb *self, int timeout)
-{
- irda_start_timer(&self->media_busy_timer, timeout,
- (void *) self, irlap_media_busy_expired);
-}
-
-void irlap_stop_mbusy_timer(struct irlap_cb *self)
-{
- /* If timer is activated, kill it! */
- del_timer(&self->media_busy_timer);
-
- /* If we are in NDM, there is a bunch of events in LAP that
- * that be pending due to the media_busy condition, such as
- * CONNECT_REQUEST and SEND_UI_FRAME. If we don't generate
- * an event, they will wait forever...
- * Jean II */
- if (self->state == LAP_NDM)
- irlap_do_event(self, MEDIA_BUSY_TIMER_EXPIRED, NULL, NULL);
-}
-
-void irlmp_start_watchdog_timer(struct lsap_cb *self, int timeout)
-{
- irda_start_timer(&self->watchdog_timer, timeout, (void *) self,
- irlmp_watchdog_timer_expired);
-}
-
-void irlmp_start_discovery_timer(struct irlmp_cb *self, int timeout)
-{
- irda_start_timer(&self->discovery_timer, timeout, (void *) self,
- irlmp_discovery_timer_expired);
-}
-
-void irlmp_start_idle_timer(struct lap_cb *self, int timeout)
-{
- irda_start_timer(&self->idle_timer, timeout, (void *) self,
- irlmp_idle_timer_expired);
-}
-
-void irlmp_stop_idle_timer(struct lap_cb *self)
-{
- /* If timer is activated, kill it! */
- del_timer(&self->idle_timer);
-}
-
-/*
- * Function irlap_slot_timer_expired (data)
- *
- * IrLAP slot timer has expired
- *
- */
-static void irlap_slot_timer_expired(void *data)
-{
- struct irlap_cb *self = (struct irlap_cb *) data;
-
- IRDA_ASSERT(self != NULL, return;);
- IRDA_ASSERT(self->magic == LAP_MAGIC, return;);
-
- irlap_do_event(self, SLOT_TIMER_EXPIRED, NULL, NULL);
-}
-
-/*
- * Function irlap_query_timer_expired (data)
- *
- * IrLAP query timer has expired
- *
- */
-static void irlap_query_timer_expired(void *data)
-{
- struct irlap_cb *self = (struct irlap_cb *) data;
-
- IRDA_ASSERT(self != NULL, return;);
- IRDA_ASSERT(self->magic == LAP_MAGIC, return;);
-
- irlap_do_event(self, QUERY_TIMER_EXPIRED, NULL, NULL);
-}
-
-/*
- * Function irda_final_timer_expired (data)
- *
- *
- *
- */
-static void irlap_final_timer_expired(void *data)
-{
- struct irlap_cb *self = (struct irlap_cb *) data;
-
- IRDA_ASSERT(self != NULL, return;);
- IRDA_ASSERT(self->magic == LAP_MAGIC, return;);
-
- irlap_do_event(self, FINAL_TIMER_EXPIRED, NULL, NULL);
-}
-
-/*
- * Function irda_wd_timer_expired (data)
- *
- *
- *
- */
-static void irlap_wd_timer_expired(void *data)
-{
- struct irlap_cb *self = (struct irlap_cb *) data;
-
- IRDA_ASSERT(self != NULL, return;);
- IRDA_ASSERT(self->magic == LAP_MAGIC, return;);
-
- irlap_do_event(self, WD_TIMER_EXPIRED, NULL, NULL);
-}
-
-/*
- * Function irda_backoff_timer_expired (data)
- *
- *
- *
- */
-static void irlap_backoff_timer_expired(void *data)
-{
- struct irlap_cb *self = (struct irlap_cb *) data;
-
- IRDA_ASSERT(self != NULL, return;);
- IRDA_ASSERT(self->magic == LAP_MAGIC, return;);
-
- irlap_do_event(self, BACKOFF_TIMER_EXPIRED, NULL, NULL);
-}
-
-
-/*
- * Function irtty_media_busy_expired (data)
- *
- *
- */
-static void irlap_media_busy_expired(void *data)
-{
- struct irlap_cb *self = (struct irlap_cb *) data;
-
- IRDA_ASSERT(self != NULL, return;);
-
- irda_device_set_media_busy(self->netdev, FALSE);
- /* Note : the LAP event will be send in irlap_stop_mbusy_timer(),
- * to catch other cases where the flag is cleared (for example
- * after a discovery) - Jean II */
-}
projects / linux-2.6-block.git / blobdiff