168 lines
5.2 KiB
C
168 lines
5.2 KiB
C
/*********************************************************************
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*
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* Filename: irlap_frame.h
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* Version: 0.9
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* Description: IrLAP frame declarations
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* Status: Experimental.
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* Author: Dag Brattli <dagb@cs.uit.no>
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* Created at: Tue Aug 19 10:27:26 1997
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* Modified at: Sat Dec 25 21:07:26 1999
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* Modified by: Dag Brattli <dagb@cs.uit.no>
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*
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* Copyright (c) 1997-1999 Dag Brattli <dagb@cs.uit.no>,
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* All Rights Reserved.
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* Copyright (c) 2000-2002 Jean Tourrilhes <jt@hpl.hp.com>
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License as
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* published by the Free Software Foundation; either version 2 of
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* the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, see <http://www.gnu.org/licenses/>.
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*
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********************************************************************/
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#ifndef IRLAP_FRAME_H
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#define IRLAP_FRAME_H
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#include <linux/skbuff.h>
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#include <net/irda/irda.h>
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/* A few forward declarations (to make compiler happy) */
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struct irlap_cb;
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struct discovery_t;
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/* Frame types and templates */
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#define INVALID 0xff
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/* Unnumbered (U) commands */
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#define SNRM_CMD 0x83 /* Set Normal Response Mode */
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#define DISC_CMD 0x43 /* Disconnect */
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#define XID_CMD 0x2f /* Exchange Station Identification */
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#define TEST_CMD 0xe3 /* Test */
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/* Unnumbered responses */
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#define RNRM_RSP 0x83 /* Request Normal Response Mode */
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#define UA_RSP 0x63 /* Unnumbered Acknowledgement */
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#define FRMR_RSP 0x87 /* Frame Reject */
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#define DM_RSP 0x0f /* Disconnect Mode */
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#define RD_RSP 0x43 /* Request Disconnection */
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#define XID_RSP 0xaf /* Exchange Station Identification */
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#define TEST_RSP 0xe3 /* Test frame */
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/* Supervisory (S) */
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#define RR 0x01 /* Receive Ready */
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#define REJ 0x09 /* Reject */
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#define RNR 0x05 /* Receive Not Ready */
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#define SREJ 0x0d /* Selective Reject */
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/* Information (I) */
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#define I_FRAME 0x00 /* Information Format */
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#define UI_FRAME 0x03 /* Unnumbered Information */
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#define CMD_FRAME 0x01
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#define RSP_FRAME 0x00
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#define PF_BIT 0x10 /* Poll/final bit */
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/* Some IrLAP field lengths */
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/*
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* Only baud rate triplet is 4 bytes (PV can be 2 bytes).
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* All others params (7) are 3 bytes, so that's 7*3 + 1*4 bytes.
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*/
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#define IRLAP_NEGOCIATION_PARAMS_LEN 25
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#define IRLAP_DISCOVERY_INFO_LEN 32
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struct disc_frame {
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__u8 caddr; /* Connection address */
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__u8 control;
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} __packed;
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struct xid_frame {
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__u8 caddr; /* Connection address */
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__u8 control;
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__u8 ident; /* Should always be XID_FORMAT */
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__le32 saddr; /* Source device address */
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__le32 daddr; /* Destination device address */
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__u8 flags; /* Discovery flags */
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__u8 slotnr;
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__u8 version;
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} __packed;
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struct test_frame {
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__u8 caddr; /* Connection address */
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__u8 control;
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__le32 saddr; /* Source device address */
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__le32 daddr; /* Destination device address */
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} __packed;
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struct ua_frame {
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__u8 caddr;
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__u8 control;
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__le32 saddr; /* Source device address */
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__le32 daddr; /* Dest device address */
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} __packed;
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struct dm_frame {
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__u8 caddr; /* Connection address */
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__u8 control;
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} __packed;
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struct rd_frame {
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__u8 caddr; /* Connection address */
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__u8 control;
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} __packed;
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struct rr_frame {
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__u8 caddr; /* Connection address */
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__u8 control;
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} __packed;
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struct i_frame {
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__u8 caddr;
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__u8 control;
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} __packed;
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struct snrm_frame {
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__u8 caddr;
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__u8 control;
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__le32 saddr;
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__le32 daddr;
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__u8 ncaddr;
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} __packed;
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void irlap_queue_xmit(struct irlap_cb *self, struct sk_buff *skb);
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void irlap_send_discovery_xid_frame(struct irlap_cb *, int S, __u8 s,
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__u8 command,
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struct discovery_t *discovery);
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void irlap_send_snrm_frame(struct irlap_cb *, struct qos_info *);
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void irlap_send_test_frame(struct irlap_cb *self, __u8 caddr, __u32 daddr,
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struct sk_buff *cmd);
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void irlap_send_ua_response_frame(struct irlap_cb *, struct qos_info *);
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void irlap_send_dm_frame(struct irlap_cb *self);
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void irlap_send_rd_frame(struct irlap_cb *self);
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void irlap_send_disc_frame(struct irlap_cb *self);
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void irlap_send_rr_frame(struct irlap_cb *self, int command);
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void irlap_send_data_primary(struct irlap_cb *, struct sk_buff *);
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void irlap_send_data_primary_poll(struct irlap_cb *, struct sk_buff *);
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void irlap_send_data_secondary(struct irlap_cb *, struct sk_buff *);
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void irlap_send_data_secondary_final(struct irlap_cb *, struct sk_buff *);
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void irlap_resend_rejected_frames(struct irlap_cb *, int command);
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void irlap_resend_rejected_frame(struct irlap_cb *self, int command);
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void irlap_send_ui_frame(struct irlap_cb *self, struct sk_buff *skb,
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__u8 caddr, int command);
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int irlap_insert_qos_negotiation_params(struct irlap_cb *self,
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struct sk_buff *skb);
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#endif
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