/*********************************************************************
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/*********************************************************************
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*
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*
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* Filename: timer.c
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* Filename: timer.c
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* Version:
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* Version:
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* Description:
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* Description:
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* Status: Experimental.
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* Status: Experimental.
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* Author: Dag Brattli <dagb@cs.uit.no>
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* Author: Dag Brattli <dagb@cs.uit.no>
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* Created at: Sat Aug 16 00:59:29 1997
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* Created at: Sat Aug 16 00:59:29 1997
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* Modified at: Wed Dec 8 12:50:34 1999
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* Modified at: Wed Dec 8 12:50:34 1999
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* Modified by: Dag Brattli <dagb@cs.uit.no>
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* Modified by: Dag Brattli <dagb@cs.uit.no>
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*
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*
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* Copyright (c) 1997, 1999 Dag Brattli <dagb@cs.uit.no>,
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* Copyright (c) 1997, 1999 Dag Brattli <dagb@cs.uit.no>,
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* All Rights Reserved.
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* All Rights Reserved.
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* Copyright (c) 2000-2001 Jean Tourrilhes <jt@hpl.hp.com>
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* Copyright (c) 2000-2001 Jean Tourrilhes <jt@hpl.hp.com>
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*
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*
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* This program is free software; you can redistribute it and/or
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License as
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* modify it under the terms of the GNU General Public License as
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* published by the Free Software Foundation; either version 2 of
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* published by the Free Software Foundation; either version 2 of
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* the License, or (at your option) any later version.
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* the License, or (at your option) any later version.
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*
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*
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* Neither Dag Brattli nor University of Tromsø admit liability nor
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* Neither Dag Brattli nor University of Tromsø admit liability nor
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* provide warranty for any of this software. This material is
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* provide warranty for any of this software. This material is
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* provided "AS-IS" and at no charge.
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* provided "AS-IS" and at no charge.
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*
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*
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********************************************************************/
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********************************************************************/
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#include <asm/system.h>
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#include <asm/system.h>
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#include <linux/config.h>
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#include <linux/config.h>
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#include <linux/delay.h>
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#include <linux/delay.h>
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#include <net/irda/timer.h>
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#include <net/irda/timer.h>
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#include <net/irda/irda.h>
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#include <net/irda/irda.h>
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#include <net/irda/irtty.h>
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#include <net/irda/irtty.h>
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#include <net/irda/irlap.h>
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#include <net/irda/irlap.h>
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#include <net/irda/irlmp_event.h>
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#include <net/irda/irlmp_event.h>
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static void irlap_slot_timer_expired(void* data);
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static void irlap_slot_timer_expired(void* data);
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static void irlap_query_timer_expired(void* data);
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static void irlap_query_timer_expired(void* data);
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static void irlap_final_timer_expired(void* data);
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static void irlap_final_timer_expired(void* data);
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static void irlap_wd_timer_expired(void* data);
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static void irlap_wd_timer_expired(void* data);
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static void irlap_backoff_timer_expired(void* data);
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static void irlap_backoff_timer_expired(void* data);
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static void irlap_media_busy_expired(void* data);
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static void irlap_media_busy_expired(void* data);
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/*
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/*
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* Function irda_start_timer (timer, timeout)
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* Function irda_start_timer (timer, timeout)
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*
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*
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* Start an IrDA timer
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* Start an IrDA timer
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*
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*
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*/
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*/
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void irda_start_timer(struct timer_list *ptimer, int timeout, void *data,
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void irda_start_timer(struct timer_list *ptimer, int timeout, void *data,
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TIMER_CALLBACK callback)
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TIMER_CALLBACK callback)
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{
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{
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del_timer(ptimer);
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del_timer(ptimer);
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ptimer->data = (unsigned long) data;
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ptimer->data = (unsigned long) data;
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/*
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/*
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* For most architectures void * is the same as unsigned long, but
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* For most architectures void * is the same as unsigned long, but
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* at least we try to use void * as long as possible. Since the
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* at least we try to use void * as long as possible. Since the
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* timer functions use unsigned long, we cast the function here
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* timer functions use unsigned long, we cast the function here
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*/
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*/
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ptimer->function = (void (*)(unsigned long)) callback;
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ptimer->function = (void (*)(unsigned long)) callback;
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ptimer->expires = jiffies + timeout;
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ptimer->expires = jiffies + timeout;
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add_timer(ptimer);
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add_timer(ptimer);
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}
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}
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void irlap_start_slot_timer(struct irlap_cb *self, int timeout)
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void irlap_start_slot_timer(struct irlap_cb *self, int timeout)
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{
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{
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irda_start_timer(&self->slot_timer, timeout, (void *) self,
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irda_start_timer(&self->slot_timer, timeout, (void *) self,
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irlap_slot_timer_expired);
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irlap_slot_timer_expired);
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}
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}
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void irlap_start_query_timer(struct irlap_cb *self, int timeout)
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void irlap_start_query_timer(struct irlap_cb *self, int timeout)
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{
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{
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irda_start_timer( &self->query_timer, timeout, (void *) self,
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irda_start_timer( &self->query_timer, timeout, (void *) self,
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irlap_query_timer_expired);
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irlap_query_timer_expired);
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}
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}
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void irlap_start_final_timer(struct irlap_cb *self, int timeout)
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void irlap_start_final_timer(struct irlap_cb *self, int timeout)
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{
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{
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irda_start_timer(&self->final_timer, timeout, (void *) self,
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irda_start_timer(&self->final_timer, timeout, (void *) self,
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irlap_final_timer_expired);
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irlap_final_timer_expired);
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}
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}
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void irlap_start_wd_timer(struct irlap_cb *self, int timeout)
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void irlap_start_wd_timer(struct irlap_cb *self, int timeout)
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{
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{
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irda_start_timer(&self->wd_timer, timeout, (void *) self,
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irda_start_timer(&self->wd_timer, timeout, (void *) self,
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irlap_wd_timer_expired);
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irlap_wd_timer_expired);
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}
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}
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void irlap_start_backoff_timer(struct irlap_cb *self, int timeout)
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void irlap_start_backoff_timer(struct irlap_cb *self, int timeout)
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{
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{
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irda_start_timer(&self->backoff_timer, timeout, (void *) self,
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irda_start_timer(&self->backoff_timer, timeout, (void *) self,
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irlap_backoff_timer_expired);
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irlap_backoff_timer_expired);
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}
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}
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void irlap_start_mbusy_timer(struct irlap_cb *self, int timeout)
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void irlap_start_mbusy_timer(struct irlap_cb *self, int timeout)
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{
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{
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irda_start_timer(&self->media_busy_timer, timeout,
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irda_start_timer(&self->media_busy_timer, timeout,
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(void *) self, irlap_media_busy_expired);
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(void *) self, irlap_media_busy_expired);
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}
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}
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void irlap_stop_mbusy_timer(struct irlap_cb *self)
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void irlap_stop_mbusy_timer(struct irlap_cb *self)
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{
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{
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/* If timer is activated, kill it! */
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/* If timer is activated, kill it! */
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del_timer(&self->media_busy_timer);
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del_timer(&self->media_busy_timer);
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/* If we are in NDM, there is a bunch of events in LAP that
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/* If we are in NDM, there is a bunch of events in LAP that
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* that be pending due to the media_busy condition, such as
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* that be pending due to the media_busy condition, such as
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* CONNECT_REQUEST and SEND_UI_FRAME. If we don't generate
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* CONNECT_REQUEST and SEND_UI_FRAME. If we don't generate
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* an event, they will wait forever...
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* an event, they will wait forever...
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* Jean II */
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* Jean II */
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if (self->state == LAP_NDM)
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if (self->state == LAP_NDM)
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irlap_do_event(self, MEDIA_BUSY_TIMER_EXPIRED, NULL, NULL);
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irlap_do_event(self, MEDIA_BUSY_TIMER_EXPIRED, NULL, NULL);
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}
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}
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void irlmp_start_watchdog_timer(struct lsap_cb *self, int timeout)
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void irlmp_start_watchdog_timer(struct lsap_cb *self, int timeout)
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{
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{
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irda_start_timer(&self->watchdog_timer, timeout, (void *) self,
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irda_start_timer(&self->watchdog_timer, timeout, (void *) self,
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irlmp_watchdog_timer_expired);
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irlmp_watchdog_timer_expired);
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}
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}
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void irlmp_start_discovery_timer(struct irlmp_cb *self, int timeout)
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void irlmp_start_discovery_timer(struct irlmp_cb *self, int timeout)
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{
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{
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irda_start_timer(&self->discovery_timer, timeout, (void *) self,
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irda_start_timer(&self->discovery_timer, timeout, (void *) self,
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irlmp_discovery_timer_expired);
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irlmp_discovery_timer_expired);
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}
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}
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void irlmp_start_idle_timer(struct lap_cb *self, int timeout)
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void irlmp_start_idle_timer(struct lap_cb *self, int timeout)
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{
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{
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irda_start_timer(&self->idle_timer, timeout, (void *) self,
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irda_start_timer(&self->idle_timer, timeout, (void *) self,
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irlmp_idle_timer_expired);
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irlmp_idle_timer_expired);
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}
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}
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void irlmp_stop_idle_timer(struct lap_cb *self)
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void irlmp_stop_idle_timer(struct lap_cb *self)
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{
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{
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/* If timer is activated, kill it! */
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/* If timer is activated, kill it! */
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if(timer_pending(&self->idle_timer))
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if(timer_pending(&self->idle_timer))
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del_timer(&self->idle_timer);
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del_timer(&self->idle_timer);
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}
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}
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/*
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/*
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* Function irlap_slot_timer_expired (data)
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* Function irlap_slot_timer_expired (data)
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*
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*
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* IrLAP slot timer has expired
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* IrLAP slot timer has expired
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*
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*
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*/
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*/
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static void irlap_slot_timer_expired(void *data)
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static void irlap_slot_timer_expired(void *data)
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{
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{
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struct irlap_cb *self = (struct irlap_cb *) data;
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struct irlap_cb *self = (struct irlap_cb *) data;
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ASSERT(self != NULL, return;);
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ASSERT(self != NULL, return;);
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ASSERT(self->magic == LAP_MAGIC, return;);
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ASSERT(self->magic == LAP_MAGIC, return;);
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irlap_do_event(self, SLOT_TIMER_EXPIRED, NULL, NULL);
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irlap_do_event(self, SLOT_TIMER_EXPIRED, NULL, NULL);
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}
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}
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/*
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/*
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* Function irlap_query_timer_expired (data)
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* Function irlap_query_timer_expired (data)
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*
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*
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* IrLAP query timer has expired
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* IrLAP query timer has expired
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*
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*
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*/
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*/
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static void irlap_query_timer_expired(void *data)
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static void irlap_query_timer_expired(void *data)
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{
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{
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struct irlap_cb *self = (struct irlap_cb *) data;
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struct irlap_cb *self = (struct irlap_cb *) data;
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ASSERT(self != NULL, return;);
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ASSERT(self != NULL, return;);
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ASSERT(self->magic == LAP_MAGIC, return;);
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ASSERT(self->magic == LAP_MAGIC, return;);
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irlap_do_event(self, QUERY_TIMER_EXPIRED, NULL, NULL);
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irlap_do_event(self, QUERY_TIMER_EXPIRED, NULL, NULL);
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}
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}
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/*
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/*
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* Function irda_final_timer_expired (data)
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* Function irda_final_timer_expired (data)
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*
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*
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*
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*
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*
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*
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*/
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*/
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static void irlap_final_timer_expired(void *data)
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static void irlap_final_timer_expired(void *data)
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{
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{
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struct irlap_cb *self = (struct irlap_cb *) data;
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struct irlap_cb *self = (struct irlap_cb *) data;
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ASSERT(self != NULL, return;);
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ASSERT(self != NULL, return;);
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ASSERT(self->magic == LAP_MAGIC, return;);
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ASSERT(self->magic == LAP_MAGIC, return;);
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irlap_do_event(self, FINAL_TIMER_EXPIRED, NULL, NULL);
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irlap_do_event(self, FINAL_TIMER_EXPIRED, NULL, NULL);
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}
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}
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/*
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/*
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* Function irda_wd_timer_expired (data)
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* Function irda_wd_timer_expired (data)
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*
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*
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*
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*
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*
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*
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*/
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*/
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static void irlap_wd_timer_expired(void *data)
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static void irlap_wd_timer_expired(void *data)
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{
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{
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struct irlap_cb *self = (struct irlap_cb *) data;
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struct irlap_cb *self = (struct irlap_cb *) data;
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ASSERT(self != NULL, return;);
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ASSERT(self != NULL, return;);
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ASSERT(self->magic == LAP_MAGIC, return;);
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ASSERT(self->magic == LAP_MAGIC, return;);
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irlap_do_event(self, WD_TIMER_EXPIRED, NULL, NULL);
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irlap_do_event(self, WD_TIMER_EXPIRED, NULL, NULL);
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}
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}
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/*
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/*
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* Function irda_backoff_timer_expired (data)
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* Function irda_backoff_timer_expired (data)
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*
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*
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*
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*
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*
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*
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*/
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*/
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static void irlap_backoff_timer_expired(void *data)
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static void irlap_backoff_timer_expired(void *data)
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{
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{
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struct irlap_cb *self = (struct irlap_cb *) data;
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struct irlap_cb *self = (struct irlap_cb *) data;
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ASSERT(self != NULL, return;);
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ASSERT(self != NULL, return;);
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ASSERT(self->magic == LAP_MAGIC, return;);
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ASSERT(self->magic == LAP_MAGIC, return;);
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irlap_do_event(self, BACKOFF_TIMER_EXPIRED, NULL, NULL);
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irlap_do_event(self, BACKOFF_TIMER_EXPIRED, NULL, NULL);
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}
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}
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/*
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/*
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* Function irtty_media_busy_expired (data)
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* Function irtty_media_busy_expired (data)
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*
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*
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*
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*
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*/
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*/
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void irlap_media_busy_expired(void* data)
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void irlap_media_busy_expired(void* data)
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{
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{
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struct irlap_cb *self = (struct irlap_cb *) data;
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struct irlap_cb *self = (struct irlap_cb *) data;
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ASSERT(self != NULL, return;);
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ASSERT(self != NULL, return;);
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irda_device_set_media_busy(self->netdev, FALSE);
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irda_device_set_media_busy(self->netdev, FALSE);
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/* Note : the LAP event will be send in irlap_stop_mbusy_timer(),
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/* Note : the LAP event will be send in irlap_stop_mbusy_timer(),
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* to catch other cases where the flag is cleared (for example
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* to catch other cases where the flag is cleared (for example
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* after a discovery) - Jean II */
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* after a discovery) - Jean II */
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}
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}
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