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/*********************************************************************
*
* Filename: irlap_frame.h
* Version: 0.3
* Description: Build and transmit IrLAP frames
* Status: Experimental.
* Author: Dag Brattli <dagb@cs.uit.no>
* Created at: Tue Aug 19 10:27:26 1997
* Modified at: Mon Dec 14 14:22:23 1998
* Modified by: Dag Brattli <dagb@cs.uit.no>
*
* Copyright (c) 1998 Dag Brattli <dagb@cs.uit.no>, All Rights Reserved.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License as
* published by the Free Software Foundation; either version 2 of
* the License, or (at your option) any later version.
*
* Neither Dag Brattli nor University of Tromsø admit liability nor
* provide warranty for any of this software. This material is
* provided "AS-IS" and at no charge.
*
********************************************************************/
#ifndef IRLAP_FRAME_H
#define IRLAP_FRAME_H
#include <linux/skbuff.h>
#include <net/irda/irmod.h>
#include <net/irda/irlap.h>
#include <net/irda/qos.h>
/* Frame types and templates */
#define INVALID 0xff
/* Unnumbered (U) commands */
#define SNRM_CMD 0x83 /* Set Normal Response Mode */
#define DISC_CMD 0x43 /* Disconnect */
#define XID_CMD 0x2f /* Exchange Station Identification */
#define TEST_CMD 0xe3 /* Test */
/* Unnumbered responses */
#define RNRM_RSP 0x83 /* Request Normal Response Mode */
#define UA_RSP 0x63 /* Unnumbered Acknowledgement */
#define FRMR_RSP 0x87 /* Frame Reject */
#define DM_RSP 0x0f /* Disconnect Mode */
#define RD_RSP 0x43 /* Request Disconnection */
#define XID_RSP 0xaf /* Exchange Station Identification */
#define TEST_RSP 0xe3 /* Test frame */
/* Supervisory (S) */
#define RR 0x01 /* Receive Ready */
#define REJ 0x09 /* Reject */
#define RNR 0x05 /* Receive Not Ready */
#define SREJ 0x0d /* Selective Reject */
/* Information (I) */
#define I_FRAME 0x00 /* Information Format */
#define UI_FRAME 0x03 /* Unnumbered Information */
#define CMD_FRAME 0x01
#define RSP_FRAME 0x00
#define PF_BIT 0x10 /* Poll/final bit */
#define IR_S 0x01 /* Supervisory frames */
#define IR_RR 0x01 /* Receiver ready */
#define IR_RNR 0x05 /* Receiver not ready */
#define IR_REJ 0x09 /* Reject */
#define IR_U 0x03 /* Unnumbered frames */
#define IR_SNRM 0x2f /* Set Asynchronous Balanced Mode */
#define IR_DISC 0x43 /* Disconnect */
#define IR_DM 0x0f /* Disconnected mode */
#define IR_UA 0x63 /* Unnumbered acknowledge */
#define IR_FRMR 0x87 /* Frame reject */
#define IR_UI 0x03 /* Unnumbered information */
struct xid_frame {
__u8 caddr __attribute__((packed)); /* Connection address */
__u8 control __attribute__((packed));
__u8 ident __attribute__((packed)); /* Should always be XID_FORMAT */
__u32 saddr __attribute__((packed)); /* Source device address */
__u32 daddr __attribute__((packed)); /* Destination device address */
__u8 flags __attribute__((packed)); /* Discovery flags */
__u8 slotnr __attribute__((packed));
__u8 version __attribute__((packed));
__u8 discovery_info[0] __attribute__((packed));
};
struct test_frame {
__u8 caddr; /* Connection address */
__u8 control;
__u8 saddr; /* Source device address */
__u8 daddr; /* Destination device address */
__u8 *info; /* Information */
};
struct ua_frame {
__u8 caddr __attribute__((packed));
__u8 control __attribute__((packed));
__u32 saddr __attribute__((packed)); /* Source device address */
__u32 daddr __attribute__((packed)); /* Dest device address */
__u8 params[0];
};
struct i_frame {
__u8 caddr __attribute__((packed));
__u8 control __attribute__((packed));
__u8 data[0] __attribute__((packed));
};
struct snrm_frame {
__u8 caddr __attribute__((packed));
__u8 control __attribute__((packed));
__u32 saddr __attribute__((packed));
__u32 daddr __attribute__((packed));
__u8 ncaddr __attribute__((packed));
__u8 params[0];
};
/* Per-packet information we need to hide inside sk_buff */
struct irlap_skb_cb {
int mtt; /* minimum turn around time */
int xbofs; /* number of xbofs required */
int vs; /* next frame to send */
int vr; /* next frame to receive */
};
__inline__ void irlap_insert_mtt( struct irlap_cb *self, struct sk_buff *skb);
void irlap_send_discovery_xid_frame( struct irlap_cb *, int S, __u8 s,
__u8 command, DISCOVERY *discovery);
void irlap_send_snrm_frame( struct irlap_cb *, struct qos_info *);
void irlap_send_ua_response_frame( struct irlap_cb *, struct qos_info *);
void irlap_send_ui_frame( struct irlap_cb *self, struct sk_buff *skb,
int command);
void irlap_send_dm_frame( struct irlap_cb *);
void irlap_send_disc_frame( struct irlap_cb *);
void irlap_send_rr_frame( struct irlap_cb *, int command);
void irlap_send_data_primary( struct irlap_cb *, struct sk_buff *);
void irlap_send_data_primary_poll( struct irlap_cb *, struct sk_buff *);
void irlap_send_data_secondary( struct irlap_cb *, struct sk_buff *);
void irlap_send_data_secondary_final( struct irlap_cb *, struct sk_buff *);
void irlap_resend_rejected_frames( struct irlap_cb *, int command);
void irlap_send_i_frame( struct irlap_cb *, struct sk_buff *, int command);
void irlap_send_ui_frame( struct irlap_cb *, struct sk_buff *, int command);
/* void irlap_input( struct irlap_cb *self, struct sk_buff *skb); */
#endif
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