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, see <http://www.gnu.org/licenses/>. 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) */ 39struct irlap_cb; 40struct 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 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 83struct disc_frame { 84 __u8 caddr; /* Connection address */ 85 __u8 control; 86} __packed; 87 88struct xid_frame { 89 __u8 caddr; /* Connection address */ 90 __u8 control; 91 __u8 ident; /* Should always be XID_FORMAT */ 92 __le32 saddr; /* Source device address */ 93 __le32 daddr; /* Destination device address */ 94 __u8 flags; /* Discovery flags */ 95 __u8 slotnr; 96 __u8 version; 97} __packed; 98 99struct test_frame { 100 __u8 caddr; /* Connection address */ 101 __u8 control; 102 __le32 saddr; /* Source device address */ 103 __le32 daddr; /* Destination device address */ 104} __packed; 105 106struct ua_frame { 107 __u8 caddr; 108 __u8 control; 109 __le32 saddr; /* Source device address */ 110 __le32 daddr; /* Dest device address */ 111} __packed; 112 113struct dm_frame { 114 __u8 caddr; /* Connection address */ 115 __u8 control; 116} __packed; 117 118struct rd_frame { 119 __u8 caddr; /* Connection address */ 120 __u8 control; 121} __packed; 122 123struct rr_frame { 124 __u8 caddr; /* Connection address */ 125 __u8 control; 126} __packed; 127 128struct i_frame { 129 __u8 caddr; 130 __u8 control; 131} __packed; 132 133struct snrm_frame { 134 __u8 caddr; 135 __u8 control; 136 __le32 saddr; 137 __le32 daddr; 138 __u8 ncaddr; 139} __packed; 140 141void irlap_queue_xmit(struct irlap_cb *self, struct sk_buff *skb); 142void irlap_send_discovery_xid_frame(struct irlap_cb *, int S, __u8 s, 143 __u8 command, 144 struct discovery_t *discovery); 145void irlap_send_snrm_frame(struct irlap_cb *, struct qos_info *); 146void irlap_send_test_frame(struct irlap_cb *self, __u8 caddr, __u32 daddr, 147 struct sk_buff *cmd); 148void irlap_send_ua_response_frame(struct irlap_cb *, struct qos_info *); 149void irlap_send_dm_frame(struct irlap_cb *self); 150void irlap_send_rd_frame(struct irlap_cb *self); 151void irlap_send_disc_frame(struct irlap_cb *self); 152void irlap_send_rr_frame(struct irlap_cb *self, int command); 153 154void irlap_send_data_primary(struct irlap_cb *, struct sk_buff *); 155void irlap_send_data_primary_poll(struct irlap_cb *, struct sk_buff *); 156void irlap_send_data_secondary(struct irlap_cb *, struct sk_buff *); 157void irlap_send_data_secondary_final(struct irlap_cb *, struct sk_buff *); 158void irlap_resend_rejected_frames(struct irlap_cb *, int command); 159void irlap_resend_rejected_frame(struct irlap_cb *self, int command); 160 161void irlap_send_ui_frame(struct irlap_cb *self, struct sk_buff *skb, 162 __u8 caddr, int command); 163 164int irlap_insert_qos_negotiation_params(struct irlap_cb *self, 165 struct sk_buff *skb); 166 167#endif 168