1 /*********************************************************************
2 *
3 * Filename: irlap_frame.h
4 * Version: 0.9
5 * Description: IrLAP frame declarations
6 * Status: Experimental.
7 * Author: Dag Brattli <dagb@cs.uit.no>
8 * Created at: Tue Aug 19 10:27:26 1997
9 * Modified at: Sat Dec 25 21:07:26 1999
10 * Modified by: Dag Brattli <dagb@cs.uit.no>
11 *
12 * Copyright (c) 1997-1999 Dag Brattli <dagb@cs.uit.no>,
13 * All Rights Reserved.
14 * Copyright (c) 2000-2002 Jean Tourrilhes <jt@hpl.hp.com>
15 *
16 * This program is free software; you can redistribute it and/or
17 * modify it under the terms of the GNU General Public License as
18 * published by the Free Software Foundation; either version 2 of
19 * the License, or (at your option) any later version.
20 *
21 * This program is distributed in the hope that it will be useful,
22 * but WITHOUT ANY WARRANTY; without even the implied warranty of
23 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
24 * GNU General Public License for more details.
25 *
26 * You should have received a copy of the GNU General Public License
27 * along with this program; if not, write to the Free Software
28 * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
29 * MA 02111-1307 USA
30 *
31 ********************************************************************/
32
33 #ifndef IRLAP_FRAME_H
34 #define IRLAP_FRAME_H
35
36 #include <linux/skbuff.h>
37
38 #include <net/irda/irda.h>
39
40 /* A few forward declarations (to make compiler happy) */
41 struct irlap_cb;
42 struct discovery_t;
43
44 /* Frame types and templates */
45 #define INVALID 0xff
46
47 /* Unnumbered (U) commands */
48 #define SNRM_CMD 0x83 /* Set Normal Response Mode */
49 #define DISC_CMD 0x43 /* Disconnect */
50 #define XID_CMD 0x2f /* Exchange Station Identification */
51 #define TEST_CMD 0xe3 /* Test */
52
53 /* Unnumbered responses */
54 #define RNRM_RSP 0x83 /* Request Normal Response Mode */
55 #define UA_RSP 0x63 /* Unnumbered Acknowledgement */
56 #define FRMR_RSP 0x87 /* Frame Reject */
57 #define DM_RSP 0x0f /* Disconnect Mode */
58 #define RD_RSP 0x43 /* Request Disconnection */
59 #define XID_RSP 0xaf /* Exchange Station Identification */
60 #define TEST_RSP 0xe3 /* Test frame */
61
62 /* Supervisory (S) */
63 #define RR 0x01 /* Receive Ready */
64 #define REJ 0x09 /* Reject */
65 #define RNR 0x05 /* Receive Not Ready */
66 #define SREJ 0x0d /* Selective Reject */
67
68 /* Information (I) */
69 #define I_FRAME 0x00 /* Information Format */
70 #define UI_FRAME 0x03 /* Unnumbered Information */
71
72 #define CMD_FRAME 0x01
73 #define RSP_FRAME 0x00
74
75 #define PF_BIT 0x10 /* Poll/final bit */
76
77 struct xid_frame {
78 __u8 caddr; /* Connection address */
79 __u8 control;
80 __u8 ident; /* Should always be XID_FORMAT */
81 __u32 saddr; /* Source device address */
82 __u32 daddr; /* Destination device address */
83 __u8 flags; /* Discovery flags */
84 __u8 slotnr;
85 __u8 version;
86 } IRDA_PACK;
87
88 struct test_frame {
89 __u8 caddr; /* Connection address */
90 __u8 control;
91 __u32 saddr; /* Source device address */
92 __u32 daddr; /* Destination device address */
93 } IRDA_PACK;
94
95 struct ua_frame {
96 __u8 caddr;
97 __u8 control;
98
99 __u32 saddr; /* Source device address */
100 __u32 daddr; /* Dest device address */
101 } IRDA_PACK;
102
103 struct i_frame {
104 __u8 caddr;
105 __u8 control;
106 } IRDA_PACK;
107
108 struct snrm_frame {
109 __u8 caddr;
110 __u8 control;
111 __u32 saddr;
112 __u32 daddr;
113 __u8 ncaddr;
114 } IRDA_PACK;
115
116 void irlap_queue_xmit(struct irlap_cb *self, struct sk_buff *skb);
117 void irlap_send_discovery_xid_frame(struct irlap_cb *, int S, __u8 s,
118 __u8 command,
119 struct discovery_t *discovery);
120 void irlap_send_snrm_frame(struct irlap_cb *, struct qos_info *);
121 void irlap_send_test_frame(struct irlap_cb *self, __u8 caddr, __u32 daddr,
122 struct sk_buff *cmd);
123 void irlap_send_ua_response_frame(struct irlap_cb *, struct qos_info *);
124 void irlap_send_dm_frame(struct irlap_cb *self);
125 void irlap_send_rd_frame(struct irlap_cb *self);
126 void irlap_send_disc_frame(struct irlap_cb *self);
127 void irlap_send_rr_frame(struct irlap_cb *self, int command);
128
129 void irlap_send_data_primary(struct irlap_cb *, struct sk_buff *);
130 void irlap_send_data_primary_poll(struct irlap_cb *, struct sk_buff *);
131 void irlap_send_data_secondary(struct irlap_cb *, struct sk_buff *);
132 void irlap_send_data_secondary_final(struct irlap_cb *, struct sk_buff *);
133 void irlap_resend_rejected_frames(struct irlap_cb *, int command);
134 void irlap_resend_rejected_frame(struct irlap_cb *self, int command);
135
136 void irlap_send_ui_frame(struct irlap_cb *self, struct sk_buff *skb,
137 __u8 caddr, int command);
138
139 extern int irlap_insert_qos_negotiation_params(struct irlap_cb *self,
140 struct sk_buff *skb);
141
142 #endif
143
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