patch-2.2.0-pre9 linux/net/irda/irlpt/irlpt_srvr_fsm.c

• Lines: 183
• Date: Wed Jan 20 11:05:33 1999
• Orig file: v2.2.0-pre8/linux/net/irda/irlpt/irlpt_srvr_fsm.c
• Orig date: Wed Dec 31 16:00:00 1969

diff -u --recursive --new-file v2.2.0-pre8/linux/net/irda/irlpt/irlpt_srvr_fsm.c linux/net/irda/irlpt/irlpt_srvr_fsm.c
@@ -0,0 +1,182 @@
+/*********************************************************************
+ *                
+ * Filename:      irlpt_srvr_fsm.c
+ * Version:       0.1
+ * Sources:       irlan_event.c
+ * 
+ *     Copyright (c) 1997, Dag Brattli <dagb@cs.uit.no>, All Rights Reserved.
+ *     Copyright (c) 1998, Thomas Davis, <ratbert@radiks.net>, All Rights Reserved.
+ *     
+ *     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.
+ *
+ *     I, Thomas Davis, provide no warranty for any of this software. This 
+ *     material is provided "AS-IS" and at no charge.
+ *
+ ********************************************************************/
+
+#include <linux/config.h>
+
+#include <net/irda/iriap.h>
+#include <net/irda/irlmp.h>
+#include <net/irda/irttp.h>
+#include <net/irda/irlpt_common.h>
+#include <net/irda/irlpt_server.h>
+#include <net/irda/irlpt_server_fsm.h>
+#include <net/irda/irda.h>
+
+static int irlpt_server_state_idle  ( struct irlpt_cb *self, 
+				      IRLPT_EVENT event,
+				      struct sk_buff *skb, 
+				      struct irlpt_info *info);
+static int irlpt_server_state_conn  ( struct irlpt_cb *self, 
+				      IRLPT_EVENT event, 
+				      struct sk_buff *skb, 
+				      struct irlpt_info *info);
+
+#if 0
+static char *rcsid = "$Id: irlpt_server_fsm.c,v 1.4 1998/10/05 05:46:45 ratbert Exp $";
+#endif
+
+int irlpt_server_fsm_debug = 3;
+
+static int (*irlpt_server_state[])( struct irlpt_cb *self, IRLPT_EVENT event, 
+				    struct sk_buff *skb,
+				    struct irlpt_info *info) = 
+{ 
+	irlpt_server_state_idle,
+	irlpt_server_state_conn,
+};
+
+void irlpt_server_do_event( struct irlpt_cb *self, IRLPT_EVENT event, 
+			    struct sk_buff *skb, struct irlpt_info *info) 
+{
+	DEBUG( irlpt_server_fsm_debug, __FUNCTION__ ": STATE = %s, EVENT = %s\n", 
+	       irlpt_server_fsm_state[self->state], irlpt_fsm_event[event]);
+
+	ASSERT( self != NULL, return;);
+	ASSERT( self->magic == IRLPT_MAGIC, return;);
+
+	(*irlpt_server_state[ self->state]) ( self, event, skb, info);
+
+	DEBUG( irlpt_server_fsm_debug, __FUNCTION__ " -->\n");
+}
+
+void irlpt_server_next_state( struct irlpt_cb *self, IRLPT_CLIENT_STATE state) 
+{
+
+	DEBUG( irlpt_server_fsm_debug, __FUNCTION__ ": NEXT STATE = %s\n", 
+	       irlpt_server_fsm_state[state]);
+
+	ASSERT( self != NULL, return;);
+	ASSERT( self->magic == IRLPT_MAGIC, return;);
+
+	self->state = state;
+
+	DEBUG( irlpt_server_fsm_debug, __FUNCTION__ " -->\n");
+}
+
+/*
+ * Function server_state_idle (event, skb, info)
+ *
+ *    IDLE, We are waiting for an indication that there is a provider
+ *    available.
+ */
+static int irlpt_server_state_idle( struct irlpt_cb *self, IRLPT_EVENT event, 
+				    struct sk_buff *skb, 
+				    struct irlpt_info *info) 
+{
+	struct sk_buff *r_skb;
+
+	DEBUG( irlpt_server_fsm_debug, "--> " __FUNCTION__ ":\n");
+
+	ASSERT( self != NULL, return -1;);
+	ASSERT( self->magic == IRLPT_MAGIC, return -1;);
+
+	switch( event) {
+	case LMP_CONNECT:
+		DEBUG( irlpt_server_fsm_debug, __FUNCTION__ 
+		       ": LM_CONNECT, remote lsap=%d\n", 
+		       info->dlsap_sel);
+
+		self->dlsap_sel = info->dlsap_sel;
+
+		r_skb = dev_alloc_skb(64);
+		if (r_skb == NULL) { 
+			printk( KERN_INFO __FUNCTION__ 
+				": can't allocate sk_buff of length 64\n");
+			return 0;
+		}
+		ALLOC_SKB_MAGIC(r_skb);
+		skb_reserve( r_skb, LMP_MAX_HEADER);
+		skb->len = 0;
+		irlmp_connect_response( self->lsap, r_skb);
+		irlpt_server_next_state( self, IRLPT_SERVER_CONN);
+
+		break;
+
+	default:
+		DEBUG( irlpt_server_fsm_debug, __FUNCTION__ 
+		       ": Unknown event %d (%s)\n", 
+		       event, irlpt_fsm_event[event]);
+		break;
+	}
+
+	if (skb) {
+		dev_kfree_skb( skb);
+	}
+
+	DEBUG( irlpt_server_fsm_debug, __FUNCTION__ " -->\n");
+
+	return 0;
+}
+
+/*
+ * Function server_state_conn (event, skb, info)
+ *
+ *    CONN, We have connected to a provider but has not issued any
+ *    commands yet.
+ *
+ */
+static int irlpt_server_state_conn( struct irlpt_cb *self, 
+				    IRLPT_EVENT event, 
+				    struct sk_buff *skb, 
+				    struct irlpt_info *info) 
+{
+	DEBUG( irlpt_server_fsm_debug, "--> " __FUNCTION__ ":\n");
+
+	ASSERT( self != NULL, return -1;);
+	ASSERT( self->magic == IRLPT_MAGIC, return -1;);
+
+	switch( event) {
+	case LMP_DISCONNECT:
+	case LAP_DISCONNECT:
+		DEBUG( irlpt_server_fsm_debug, __FUNCTION__ 
+		       ": LMP_DISCONNECT/LAP_DISCONNECT\n");
+		irlpt_server_next_state( self, IRLPT_SERVER_IDLE);
+		break;
+
+	default:
+		DEBUG( irlpt_server_fsm_debug, __FUNCTION__ 
+		       ": Unknown event %d (%s)\n", 
+		       event, irlpt_fsm_event[event]);
+		break;
+	}
+
+	if ( skb) {
+		dev_kfree_skb( skb);
+	}
+
+	DEBUG( irlpt_server_fsm_debug, __FUNCTION__ " -->\n");
+
+	return 0;
+}
+
+#if 0
+static void irlpt_server_print_event( IRLPT_EVENT event) 
+{
+	DEBUG( 0, "IRLPT_EVENT = %s\n", irlpt_fsm_event[event]);
+}
+#endif