/*

  $Id$

  G N O K I I

  A Linux/Unix toolset and driver for Nokia mobile phones.

  Copyright (C) 2000 Hugh Blemings & Pavel Janík ml.
  Copyright (C) 2000 Chris Kemp

  Released under the terms of the GNU GPL, see file COPYING for more details.

  This file provides an API for accessing functions via fbus. 
  See README for more details on supported mobile phones.

  The various routines are called FBUS_(whatever).

  $Log$
  Revision 1.1.1.1  2001/11/25 21:59:22  short
  :pserver:cvs@pserver.samba.org:/cvsroot - gnokii - Sun Nov 25 22:56 CET 2001

  Revision 1.5  2001/11/15 12:04:06  pkot
  Faster initialization for 6100 series (don't check for dlr3 cable)

  Revision 1.4  2001/03/21 23:36:08  chris
  Added the statemachine
  This will break gnokii --identify and --monitor except for 6210/7110

  Revision 1.3  2001/03/19 23:44:57  pkot
  DLR3 cable support

  Revision 1.2  2001/03/13 01:23:19  pkot
  Windows updates (Manfred Jonsson)

  Revision 1.1  2001/02/21 19:57:12  chris
  More fiddling with the directory layout

  Revision 1.3  2001/02/06 21:15:36  chris
  Preliminary irda support for 7110 etc.  Not well tested!

  Revision 1.2  2001/01/17 02:54:55  chris
  More 7110 work.  Use with care! (eg it is not possible to delete phonebook entries)
  I can now edit my phonebook in xgnokii but it is 'work in progress'.

  Revision 1.1  2001/01/14 22:47:01  chris
  Preliminary 7110 support (dlr9 only) and the beginnings of a new structure


*/

#ifndef __links_fbus_h
#define __links_fbus_h

#include <time.h>
#include "gsm-statemachine.h"

#ifdef WIN32
#include <sys/types.h>
#include <sys/timeb.h>
#endif

#define FBUS_MAX_FRAME_LENGTH 256
#define FBUS_MAX_MESSAGE_TYPES 128
#define FBUS_MAX_TRANSMIT_LENGTH 256
#define FBUS_MAX_CONTENT_LENGTH 120

/* Nokia mobile phone. */
#define FBUS_DEVICE_PHONE 0x00

/* Our PC. */
#define FBUS_DEVICE_PC 0x0c


/* This byte is at the beginning of all GSM Frames sent over FBUS to Nokia
   phones.  This may have to become a phone dependant parameter... */
#define FBUS_FRAME_ID 0x1e

/* This byte is at the beginning of all GSM Frames sent over IR to Nokia phones. */
#define FBUS_IR_FRAME_ID 0x1c


/* Every (well, almost every) frame from the computer starts with this
   sequence. */

#define FBUS_FRAME_HEADER 0x00, 0x01, 0x00


/* States for receive code. */

enum FBUS_RX_States {
	FBUS_RX_Sync,
	FBUS_RX_Discarding,
	FBUS_RX_GetDestination,
	FBUS_RX_GetSource,
	FBUS_RX_GetType,
	FBUS_RX_GetLength1,
	FBUS_RX_GetLength2,
	FBUS_RX_GetMessage
};


typedef struct{
	int checksum[2];
	int BufferCount;
#ifndef WIN32
	struct timeval time_now;
	struct timeval time_last;
#else
	struct _timeb time_now;
	struct _timeb time_last;
#endif
	enum FBUS_RX_States state;
	int MessageSource;
	int MessageDestination;
	int MessageType;
	int FrameLength;
	char MessageBuffer[FBUS_MAX_FRAME_LENGTH];
} FBUS_IncomingFrame;

typedef struct{
	int MessageLength;
	unsigned char *MessageBuffer;
	char FramesToGo;
	int Malloced;
} FBUS_IncomingMessage;

typedef struct {
	u16 message_length;
	u8 message_type;
	u8 *buffer;
} FBUS_OutgoingMessage;


typedef struct{
	FBUS_IncomingFrame i;
	FBUS_IncomingMessage messages[FBUS_MAX_MESSAGE_TYPES];
	u8 RequestSequenceNumber;
} FBUS_Link;

GSM_Error FBUS_Initialise(GSM_Link *newlink, GSM_Statemachine *state, int type);


#ifdef __links_fbus_c  /* Prototype functions for fbus-generic.c only */

bool FBUS_OpenSerial(bool dlr3);
void FBUS_RX_StateMachine(unsigned char rx_byte);
int FBUS_TX_SendFrame(u8 message_length, u8 message_type, u8 *buffer);
GSM_Error FBUS_SendMessage(u16 messagesize, u8 messagetype, void *message);
int FBUS_TX_SendAck(u8 message_type, u8 message_seq);

#endif   /* #ifdef __links_fbus_c */

#endif   /* #ifndef __links_fbus_h */