patch-2.1.132 linux/include/net/irda/irttp.h

• Lines: 137
• Date: Thu Dec 17 09:01:03 1998
• Orig file: v2.1.131/linux/include/net/irda/irttp.h
• Orig date: Wed Dec 31 16:00:00 1969

diff -u --recursive --new-file v2.1.131/linux/include/net/irda/irttp.h linux/include/net/irda/irttp.h
@@ -0,0 +1,136 @@
+/*********************************************************************
+ *                
+ * Filename:      irttp.h
+ * Version:       0.3
+ * Description:   Tiny Transport Protocol (TTP) definitions
+ * Status:        Experimental.
+ * Author:        Dag Brattli <dagb@cs.uit.no>
+ * Created at:    Sun Aug 31 20:14:31 1997
+ * Modified at:   Sat Dec  5 13:48:12 1998
+ * Modified by:   Dag Brattli <dagb@cs.uit.no>
+ * 
+ *     Copyright (c) 1998 Dag Brattli <dagb@cs.uit.no>, 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.
+ *
+ *     Neither Dag Brattli nor University of Tromsų admit liability nor
+ *     provide warranty for any of this software. This material is 
+ *     provided "AS-IS" and at no charge.
+ *
+ ********************************************************************/
+
+#ifndef IRTTP_H
+#define IRTTP_H
+
+#include <linux/types.h>
+#include <linux/skbuff.h>
+
+#include <net/irda/irmod.h>
+#include <net/irda/irlmp.h>
+#include <net/irda/qos.h>
+#include <net/irda/irqueue.h>
+
+#define TTP_MAX_CONNECTIONS   LM_MAX_CONNECTIONS
+#define TTP_HEADER            1
+#define TTP_HEADER_WITH_SAR   6
+#define TTP_PARAMETERS        0x80
+#define TTP_MORE              0x80
+
+#define DEFAULT_INITIAL_CREDIT 22
+
+#define LOW_THRESHOLD  4
+#define HIGH_THRESHOLD 8
+#define TTP_MAX_QUEUE 22
+
+/* Some priorities for disconnect requests */
+#define P_NORMAL 0
+#define P_HIGH 1
+
+#define SAR_DISABLE 0
+
+/*
+ *  This structure contains all data assosiated with one instance of a TTP 
+ *  connection.
+ */
+struct tsap_cb {
+	QUEUE queue;         /* For linking it into the hashbin */
+	int  magic;          /* Just in case */
+
+	int max_seg_size;    /* Max data that fit into an IrLAP frame */
+
+	__u8 stsap_sel;      /* Source TSAP */
+	__u8 dtsap_sel;      /* Destination TSAP */
+
+	struct lsap_cb *lsap; /* Corresponding LSAP to this TSAP */
+
+	__u8 connected;       /* TSAP connected */
+	 
+	__u8 initial_credit;  /* Initial credit to give peer */
+
+        int avail_credit;    /* Available credit to return to peer */
+	int remote_credit;   /* Credit held by peer TTP entity */
+	int send_credit;     /* Credit held by local TTP entity */
+	
+	struct sk_buff_head tx_queue; /* Frames to be transmitted */
+	struct sk_buff_head rx_queue; /* Received frames */
+	struct sk_buff_head rx_fragments;
+	int tx_queue_lock;
+	int rx_queue_lock;
+
+	struct notify_t notify;       /* Callbacks to client layer */
+
+	struct irda_statistics stats;
+	struct timer_list todo_timer; 
+	
+	int rx_sdu_busy;   /* RxSdu.busy */
+	int rx_sdu_size;   /* The current size of a partially received frame */
+	int rx_max_sdu_size; /* Max receive user data size */
+
+	int tx_sdu_busy;     /* TxSdu.busy */
+	int tx_max_sdu_size; /* Max transmit user data size */
+
+        int no_defrag;       /* Don't reassemble received fragments */
+
+	int disconnect_pend;   /* Disconnect, but still data to send */
+	struct sk_buff *disconnect_skb;
+};
+
+struct irttp_cb {
+	int magic;
+	
+	hashbin_t *tsaps;
+};
+
+int  irttp_init(void);
+void irttp_cleanup(void);
+
+struct tsap_cb *irttp_open_tsap( __u8 stsap, int credit, 
+				 struct notify_t *notify);
+void irttp_close_tsap( struct tsap_cb *self);
+
+int  irttp_data_request( struct tsap_cb *self, struct sk_buff *skb);
+int  irttp_udata_request( struct tsap_cb *self, struct sk_buff *skb);
+
+void irttp_connect_request( struct tsap_cb *self, __u8 dtsap_sel, __u32 daddr,
+			    struct qos_info *qos, int max_sdu_size, 
+			    struct sk_buff *userdata);
+void irttp_connect_confirm( void *instance, void *sap, struct qos_info *qos, 
+			    int max_sdu_size, struct sk_buff *skb);
+void irttp_connect_response( struct tsap_cb *self, int max_sdu_size, 
+			     struct sk_buff *userdata);
+
+void irttp_disconnect_request( struct tsap_cb *self, struct sk_buff *skb,
+			       int priority);
+void irttp_flow_request( struct tsap_cb *self, LOCAL_FLOW flow);
+
+static __inline__ void irttp_no_reassemble( struct tsap_cb *self)
+{
+	self->no_defrag = TRUE;
+}
+
+extern struct irttp_cb *irttp;
+
+#endif /* IRTTP_H */