LXR linux/include/net/irda/irlap

   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