Inital import

[l4.git] / l4 / pkg / linux-26-headers / include / net / irda / timer.h

diff --git a/l4/pkg/linux-26-headers/include/net/irda/timer.h b/l4/pkg/linux-26-headers/include/net/irda/timer.h
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+++ b/l4/pkg/linux-26-headers/include/net/irda/timer.h
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+/*********************************************************************
+ *                
+ * Filename:      timer.h
+ * Version:       
+ * Description:   
+ * Status:        Experimental.
+ * Author:        Dag Brattli <dagb@cs.uit.no>
+ * Created at:    Sat Aug 16 00:59:29 1997
+ * Modified at:   Thu Oct  7 12:25:24 1999
+ * Modified by:   Dag Brattli <dagb@cs.uit.no>
+ * 
+ *     Copyright (c) 1997, 1998-1999 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.
+ *
+ ********************************************************************/
+
+#ifndef TIMER_H
+#define TIMER_H
+
+#include <linux/timer.h>
+#include <linux/jiffies.h>
+
+#include <asm/param.h>  /* for HZ */
+
+#include <net/irda/irda.h>
+
+/* A few forward declarations (to make compiler happy) */
+struct irlmp_cb;
+struct irlap_cb;
+struct lsap_cb;
+struct lap_cb;
+
+/* 
+ *  Timeout definitions, some defined in IrLAP 6.13.5 - p. 92
+ */
+#define POLL_TIMEOUT        (450*HZ/1000)    /* Must never exceed 500 ms */
+#define FINAL_TIMEOUT       (500*HZ/1000)    /* Must never exceed 500 ms */
+
+/* 
+ *  Normally twice of p-timer. Note 3, IrLAP 6.3.11.2 - p. 60 suggests
+ *  at least twice duration of the P-timer.
+ */
+#define WD_TIMEOUT          (POLL_TIMEOUT*2)
+
+#define MEDIABUSY_TIMEOUT   (500*HZ/1000)    /* 500 msec */
+#define SMALLBUSY_TIMEOUT   (100*HZ/1000)    /* 100 msec - IrLAP 6.13.4 */
+
+/*
+ *  Slot timer must never exceed 85 ms, and must always be at least 25 ms, 
+ *  suggested to  75-85 msec by IrDA lite. This doesn't work with a lot of
+ *  devices, and other stackes uses a lot more, so it's best we do it as well
+ *  (Note : this is the default value and sysctl overides it - Jean II)
+ */
+#define SLOT_TIMEOUT            (90*HZ/1000)
+
+/* 
+ *  The latest discovery frame (XID) is longer due to the extra discovery
+ *  information (hints, device name...). This is its extra length.
+ *  We use that when setting the query timeout. Jean II
+ */
+#define XIDEXTRA_TIMEOUT        (34*HZ/1000)  /* 34 msec */
+
+#define WATCHDOG_TIMEOUT        (20*HZ)       /* 20 sec */
+
+typedef void (*TIMER_CALLBACK)(void *);
+
+static inline void irda_start_timer(struct timer_list *ptimer, int timeout, 
+                                   void* data, TIMER_CALLBACK callback)
+{
+       ptimer->function = (void (*)(unsigned long)) callback;
+       ptimer->data = (unsigned long) data;
+       
+       /* Set new value for timer (update or add timer).
+        * We use mod_timer() because it's more efficient and also
+        * safer with respect to race conditions - Jean II */
+       mod_timer(ptimer, jiffies + timeout);
+}
+
+
+void irlap_start_slot_timer(struct irlap_cb *self, int timeout);
+void irlap_start_query_timer(struct irlap_cb *self, int S, int s);
+void irlap_start_final_timer(struct irlap_cb *self, int timeout);
+void irlap_start_wd_timer(struct irlap_cb *self, int timeout);
+void irlap_start_backoff_timer(struct irlap_cb *self, int timeout);
+
+void irlap_start_mbusy_timer(struct irlap_cb *self, int timeout);
+void irlap_stop_mbusy_timer(struct irlap_cb *);
+
+void irlmp_start_watchdog_timer(struct lsap_cb *, int timeout);
+void irlmp_start_discovery_timer(struct irlmp_cb *, int timeout);
+void irlmp_start_idle_timer(struct lap_cb *, int timeout);
+void irlmp_stop_idle_timer(struct lap_cb *self);
+
+#endif
+