irlap_event.h

sparc硬件平台上的红外协议

/*********************************************************************
*                
*                
* Filename:      irlap_event.h
* Version:       0.1
* Description:   
* Status:        Experimental.
* Author:        Dag Brattli <[e-mail]>
* Created at:    Sat Aug 16 00:59:29 1997
* Modified at:   Tue Dec 21 11:20:30 1999
* Modified by:   Dag Brattli <[e-mail]>
* 
*     Copyright (c) 1998-1999 Dag Brattli <[e-mail]>, 
*     All Rights Reserved.
*     Copyright (c) 2000-2002 Jean Tourrilhes <[e-mail]>
*     
*     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.
* 
*     This program is distributed in the hope that it will be useful,
*     but WITHOUT ANY WARRANTY; without even the implied warranty of
*     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
*     GNU General Public License for more details.
* 
*     You should have received a copy of the GNU General Public License 
*     along with this program; if not, write to the Free Software 
*     Foundation, Inc., 59 Temple Place, Suite 330, Boston, 
*     MA 02111-1307 USA
*     
********************************************************************/

#ifndef IRLAP_EVENT_H
#define IRLAP_EVENT_H

#include "irda.h"

/* A few forward declarations (to make compiler happy) */
struct irlap_cb;
struct irlap_info;

/* IrLAP States */
typedef enum {
	LAP_NDM,         /* Normal disconnected mode */
		LAP_QUERY,
		LAP_REPLY,
		LAP_CONN,        /* Connect indication */
		LAP_SETUP,       /* Setting up connection */
		LAP_OFFLINE,     /* A really boring state */
		LAP_XMIT_P,
		LAP_PCLOSE,
		LAP_NRM_P,       /* Normal response mode as primary */
		LAP_RESET_WAIT,
		LAP_RESET,
		LAP_NRM_S,       /* Normal response mode as secondary */
		LAP_XMIT_S,
		LAP_SCLOSE,
		LAP_RESET_CHECK,
} IRLAP_STATE;

/* IrLAP Events */
typedef enum {
	/* Services events */
	DISCOVERY_REQUEST,
		CONNECT_REQUEST,
		CONNECT_RESPONSE,
		DISCONNECT_REQUEST,
		DATA_REQUEST,
		RESET_REQUEST,
		RESET_RESPONSE,
		
		/* Send events */
		SEND_I_CMD,
		SEND_UI_FRAME,
		
		/* Receive events */
		RECV_DISCOVERY_XID_CMD,
		RECV_DISCOVERY_XID_RSP,
		RECV_SNRM_CMD,
		RECV_TEST_CMD,
		RECV_TEST_RSP,
		RECV_UA_RSP,
		RECV_DM_RSP,
		RECV_RD_RSP,
		RECV_I_CMD,
		RECV_I_RSP,
		RECV_UI_FRAME,
		RECV_FRMR_RSP,
		RECV_RR_CMD,
		RECV_RR_RSP,
		RECV_RNR_CMD,
		RECV_RNR_RSP,
		RECV_REJ_CMD,
		RECV_REJ_RSP,
		RECV_SREJ_CMD,
		RECV_SREJ_RSP,
		RECV_DISC_CMD,
		
		/* Timer events */
		SLOT_TIMER_EXPIRED,
		QUERY_TIMER_EXPIRED,
		FINAL_TIMER_EXPIRED,
		POLL_TIMER_EXPIRED,
		DISCOVERY_TIMER_EXPIRED,
		WD_TIMER_EXPIRED,
		BACKOFF_TIMER_EXPIRED,
		MEDIA_BUSY_TIMER_EXPIRED,
} IRLAP_EVENT;

/*
* Disconnect reason code
*/
typedef enum { /* FIXME check the two first reason codes */
	LAP_DISC_INDICATION=1, /* Received a disconnect request from peer */
		LAP_NO_RESPONSE,       /* To many retransmits without response */
		LAP_RESET_INDICATION,  /* To many retransmits, or invalid nr/ns */
		LAP_FOUND_NONE,        /* No devices were discovered */
		LAP_MEDIA_BUSY,
		LAP_PRIMARY_CONFLICT,
} LAP_REASON;

extern const char *irlap_state[];

void irlap_do_event(struct irlap_cb *self, IRLAP_EVENT event, 
					struct sk_buff *skb, struct irlap_info *info);
void irlap_print_event(IRLAP_EVENT event);

void irlap_next_state(struct irlap_cb *self, IRLAP_STATE state);
extern int irlap_qos_negotiate(struct irlap_cb *self, struct sk_buff *skb);

#endif