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) */ 41struct irlap_cb; 42struct 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/* Some IrLAP field lengths */ 78/* 79 * Only baud rate triplet is 4 bytes (PV can be 2 bytes). 80 * All others params (7) are 3 bytes, so that's 7*3 + 1*4 bytes. 81 */ 82#define IRLAP_NEGOCIATION_PARAMS_LEN 25 83#define IRLAP_DISCOVERY_INFO_LEN 32 84 85struct disc_frame { 86 __u8 caddr; /* Connection address */ 87 __u8 control; 88} __packed; 89 90struct xid_frame { 91 __u8 caddr; /* Connection address */ 92 __u8 control; 93 __u8 ident; /* Should always be XID_FORMAT */ 94 __le32 saddr; /* Source device address */ 95 __le32 daddr; /* Destination device address */ 96 __u8 flags; /* Discovery flags */ 97 __u8 slotnr; 98 __u8 version; 99} __packed; 100 101struct test_frame { 102 __u8 caddr; /* Connection address */ 103 __u8 control; 104 __le32 saddr; /* Source device address */ 105 __le32 daddr; /* Destination device address */ 106} __packed; 107 108struct ua_frame { 109 __u8 caddr; 110 __u8 control; 111 __le32 saddr; /* Source device address */ 112 __le32 daddr; /* Dest device address */ 113} __packed; 114 115struct dm_frame { 116 __u8 caddr; /* Connection address */ 117 __u8 control; 118} __packed; 119 120struct rd_frame { 121 __u8 caddr; /* Connection address */ 122 __u8 control; 123} __packed; 124 125struct rr_frame { 126 __u8 caddr; /* Connection address */ 127 __u8 control; 128} __packed; 129 130struct i_frame { 131 __u8 caddr; 132 __u8 control; 133} __packed; 134 135struct snrm_frame { 136 __u8 caddr; 137 __u8 control; 138 __le32 saddr; 139 __le32 daddr; 140 __u8 ncaddr; 141} __packed; 142 143void irlap_queue_xmit(struct irlap_cb *self, struct sk_buff *skb); 144void irlap_send_discovery_xid_frame(struct irlap_cb *, int S, __u8 s, 145 __u8 command, 146 struct discovery_t *discovery); 147void irlap_send_snrm_frame(struct irlap_cb *, struct qos_info *); 148void irlap_send_test_frame(struct irlap_cb *self, __u8 caddr, __u32 daddr, 149 struct sk_buff *cmd); 150void irlap_send_ua_response_frame(struct irlap_cb *, struct qos_info *); 151void irlap_send_dm_frame(struct irlap_cb *self); 152void irlap_send_rd_frame(struct irlap_cb *self); 153void irlap_send_disc_frame(struct irlap_cb *self); 154void irlap_send_rr_frame(struct irlap_cb *self, int command); 155 156void irlap_send_data_primary(struct irlap_cb *, struct sk_buff *); 157void irlap_send_data_primary_poll(struct irlap_cb *, struct sk_buff *); 158void irlap_send_data_secondary(struct irlap_cb *, struct sk_buff *); 159void irlap_send_data_secondary_final(struct irlap_cb *, struct sk_buff *); 160void irlap_resend_rejected_frames(struct irlap_cb *, int command); 161void irlap_resend_rejected_frame(struct irlap_cb *self, int command); 162 163void irlap_send_ui_frame(struct irlap_cb *self, struct sk_buff *skb, 164 __u8 caddr, int command); 165 166extern int irlap_insert_qos_negotiation_params(struct irlap_cb *self, 167 struct sk_buff *skb); 168 169#endif 170