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1da177e4 LT |
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 | |
a6227e26 | 27 | * along with this program; if not, see <http://www.gnu.org/licenses/>. |
1da177e4 LT |
28 | * |
29 | ********************************************************************/ | |
30 | ||
31 | #ifndef IRLAP_FRAME_H | |
32 | #define IRLAP_FRAME_H | |
33 | ||
34 | #include <linux/skbuff.h> | |
35 | ||
36 | #include <net/irda/irda.h> | |
37 | ||
38 | /* A few forward declarations (to make compiler happy) */ | |
39 | struct irlap_cb; | |
40 | struct discovery_t; | |
41 | ||
42 | /* Frame types and templates */ | |
43 | #define INVALID 0xff | |
44 | ||
45 | /* Unnumbered (U) commands */ | |
46 | #define SNRM_CMD 0x83 /* Set Normal Response Mode */ | |
47 | #define DISC_CMD 0x43 /* Disconnect */ | |
48 | #define XID_CMD 0x2f /* Exchange Station Identification */ | |
49 | #define TEST_CMD 0xe3 /* Test */ | |
50 | ||
51 | /* Unnumbered responses */ | |
52 | #define RNRM_RSP 0x83 /* Request Normal Response Mode */ | |
53 | #define UA_RSP 0x63 /* Unnumbered Acknowledgement */ | |
54 | #define FRMR_RSP 0x87 /* Frame Reject */ | |
55 | #define DM_RSP 0x0f /* Disconnect Mode */ | |
56 | #define RD_RSP 0x43 /* Request Disconnection */ | |
57 | #define XID_RSP 0xaf /* Exchange Station Identification */ | |
58 | #define TEST_RSP 0xe3 /* Test frame */ | |
59 | ||
60 | /* Supervisory (S) */ | |
61 | #define RR 0x01 /* Receive Ready */ | |
62 | #define REJ 0x09 /* Reject */ | |
63 | #define RNR 0x05 /* Receive Not Ready */ | |
64 | #define SREJ 0x0d /* Selective Reject */ | |
65 | ||
66 | /* Information (I) */ | |
67 | #define I_FRAME 0x00 /* Information Format */ | |
68 | #define UI_FRAME 0x03 /* Unnumbered Information */ | |
69 | ||
70 | #define CMD_FRAME 0x01 | |
71 | #define RSP_FRAME 0x00 | |
72 | ||
73 | #define PF_BIT 0x10 /* Poll/final bit */ | |
74 | ||
1b0fee7d SO |
75 | /* Some IrLAP field lengths */ |
76 | /* | |
77 | * Only baud rate triplet is 4 bytes (PV can be 2 bytes). | |
78 | * All others params (7) are 3 bytes, so that's 7*3 + 1*4 bytes. | |
79 | */ | |
80 | #define IRLAP_NEGOCIATION_PARAMS_LEN 25 | |
81 | #define IRLAP_DISCOVERY_INFO_LEN 32 | |
82 | ||
83 | struct disc_frame { | |
84 | __u8 caddr; /* Connection address */ | |
85 | __u8 control; | |
942875ff | 86 | } __packed; |
1b0fee7d | 87 | |
1da177e4 LT |
88 | struct xid_frame { |
89 | __u8 caddr; /* Connection address */ | |
90 | __u8 control; | |
91 | __u8 ident; /* Should always be XID_FORMAT */ | |
448c31aa AV |
92 | __le32 saddr; /* Source device address */ |
93 | __le32 daddr; /* Destination device address */ | |
1da177e4 LT |
94 | __u8 flags; /* Discovery flags */ |
95 | __u8 slotnr; | |
96 | __u8 version; | |
942875ff | 97 | } __packed; |
1da177e4 LT |
98 | |
99 | struct test_frame { | |
100 | __u8 caddr; /* Connection address */ | |
101 | __u8 control; | |
448c31aa AV |
102 | __le32 saddr; /* Source device address */ |
103 | __le32 daddr; /* Destination device address */ | |
942875ff | 104 | } __packed; |
1da177e4 LT |
105 | |
106 | struct ua_frame { | |
107 | __u8 caddr; | |
108 | __u8 control; | |
448c31aa AV |
109 | __le32 saddr; /* Source device address */ |
110 | __le32 daddr; /* Dest device address */ | |
942875ff | 111 | } __packed; |
1b0fee7d SO |
112 | |
113 | struct dm_frame { | |
114 | __u8 caddr; /* Connection address */ | |
115 | __u8 control; | |
942875ff | 116 | } __packed; |
1b0fee7d SO |
117 | |
118 | struct rd_frame { | |
119 | __u8 caddr; /* Connection address */ | |
120 | __u8 control; | |
942875ff | 121 | } __packed; |
1b0fee7d SO |
122 | |
123 | struct rr_frame { | |
124 | __u8 caddr; /* Connection address */ | |
125 | __u8 control; | |
942875ff | 126 | } __packed; |
1b0fee7d | 127 | |
1da177e4 LT |
128 | struct i_frame { |
129 | __u8 caddr; | |
130 | __u8 control; | |
942875ff | 131 | } __packed; |
1da177e4 LT |
132 | |
133 | struct snrm_frame { | |
134 | __u8 caddr; | |
135 | __u8 control; | |
448c31aa AV |
136 | __le32 saddr; |
137 | __le32 daddr; | |
1da177e4 | 138 | __u8 ncaddr; |
942875ff | 139 | } __packed; |
1da177e4 LT |
140 | |
141 | void irlap_queue_xmit(struct irlap_cb *self, struct sk_buff *skb); | |
142 | void irlap_send_discovery_xid_frame(struct irlap_cb *, int S, __u8 s, | |
143 | __u8 command, | |
144 | struct discovery_t *discovery); | |
145 | void irlap_send_snrm_frame(struct irlap_cb *, struct qos_info *); | |
146 | void irlap_send_test_frame(struct irlap_cb *self, __u8 caddr, __u32 daddr, | |
147 | struct sk_buff *cmd); | |
148 | void irlap_send_ua_response_frame(struct irlap_cb *, struct qos_info *); | |
149 | void irlap_send_dm_frame(struct irlap_cb *self); | |
150 | void irlap_send_rd_frame(struct irlap_cb *self); | |
151 | void irlap_send_disc_frame(struct irlap_cb *self); | |
152 | void irlap_send_rr_frame(struct irlap_cb *self, int command); | |
153 | ||
154 | void irlap_send_data_primary(struct irlap_cb *, struct sk_buff *); | |
155 | void irlap_send_data_primary_poll(struct irlap_cb *, struct sk_buff *); | |
156 | void irlap_send_data_secondary(struct irlap_cb *, struct sk_buff *); | |
157 | void irlap_send_data_secondary_final(struct irlap_cb *, struct sk_buff *); | |
158 | void irlap_resend_rejected_frames(struct irlap_cb *, int command); | |
159 | void irlap_resend_rejected_frame(struct irlap_cb *self, int command); | |
160 | ||
161 | void irlap_send_ui_frame(struct irlap_cb *self, struct sk_buff *skb, | |
162 | __u8 caddr, int command); | |
163 | ||
0e418f94 JP |
164 | int irlap_insert_qos_negotiation_params(struct irlap_cb *self, |
165 | struct sk_buff *skb); | |
1da177e4 LT |
166 | |
167 | #endif |