#ifndef	_PKTDRVR_H
#define	_PKTDRVR_H

#ifndef	_MBUF_H
#include "mbuf.h"
#endif

#ifndef	_IFACE_H
#include "iface.h"
#endif

#define	PK_MAX	3	/* Add extra interrupt hooks if you increase this */

/* Packet driver interface classes */
#define	CL_NONE		0
#define	CL_ETHERNET	1
#define	CL_PRONET_10	2
#define	CL_IEEE8025	3
#define	CL_OMNINET	4
#define	CL_APPLETALK	5
#define	CL_SERIAL_LINE	6
#define	CL_STARLAN	7
#define	CL_ARCNET	8
#define	CL_AX25		9
#define	CL_KISS		10
#define CL_IEEE8023	11
#define CL_FDDI 	12
#define CL_INTERNET_X25 13
#define CL_LANSTAR	14
#define CL_SLFP 	15
#define	CL_NETROM	16
#define CL_PPP		17
#define NCLASS		18

#ifdef	MSDOS

/* Packet driver interface types (not a complete list) */
#define	TC500		1
#define	PC2000		10
#define	WD8003		14
#define	PC8250		15
#define	ANYTYPE		0xffff

/* Packet driver function call numbers. From Appendix B. */
#define	DRIVER_INFO		1
#define	ACCESS_TYPE		2
#define	RELEASE_TYPE		3
#define	SEND_PKT		4
#define	TERMINATE		5
#define	GET_ADDRESS		6
#define	RESET_INTERFACE		7
#define GET_PARAMETERS		10
#define AS_SEND_PKT		11
#define	SET_RCV_MODE		20
#define	GET_RCV_MODE		21
#define	SET_MULTICAST_LIST	22
#define	GET_MULTICAST_LIST	23
#define	GET_STATISTICS		24
#define SET_ADDRESS		25

/* Packet driver error return codes. From Appendix C. */

#define	NO_ERROR	0
#define	BAD_HANDLE	1	/* invalid handle number */
#define	NO_CLASS	2	/* no interfaces of specified class found */
#define	NO_TYPE		3	/* no interfaces of specified type found */
#define	NO_NUMBER	4	/* no interfaces of specified number found */
#define	BAD_TYPE	5	/* bad packet type specified */
#define	NO_MULTICAST	6	/* this interface does not support multicast */
#define	CANT_TERMINATE	7	/* this packet driver cannot terminate */
#define	BAD_MODE	8	/* an invalid receiver mode was specified */
#define	NO_SPACE	9	/* operation failed because of insufficient space */
#define	TYPE_INUSE	10	/* the type had previously been accessed, and not released */
#define	BAD_COMMAND	11	/* the command was out of range, or not	implemented */
#define	CANT_SEND	12	/* the packet couldn't be sent (usually	hardware error) */
#define CANT_SET	13	/* hardware address couldn't be changed (> 1 handle open) */
#define BAD_ADDRESS	14	/* hardware address has bad length or format */
#define CANT_RESET	15	/* couldn't reset interface (> 1 handle open) */

typedef union {
	struct {
		unsigned char lo;
		unsigned char hi;
	} byte;
	unsigned short word;
} ureg;

#define	CARRY_FLAG	0x1

struct pktdrvr {
	int class;	/* Interface class (ether/slip/etc) */
	int intno;	/* Interrupt vector */
	short handle1;	/* Driver handle(s) */
	short handle2;
	short handle3;
	struct mbuf *buffer;	/* Currently allocated rx buffer */
	struct mbuf *rcvq;	/* Receive queue */
	struct iface *iface;
};

extern struct pktdrvr Pktdrvr[];

/* In pktdrvr.c: */
INTERRUPT pkint __ARGS((unsigned short bp, unsigned short di,
     unsigned short si, unsigned short ds, unsigned short es,
     unsigned short dx, unsigned short cx, unsigned short bx,
     unsigned short ax, unsigned short ip, unsigned short cs,
     unsigned short flags, int dev));
int pk_send __ARGS((struct mbuf *bp,struct iface *iface,int32 gateway,
	int prec,int del,int tput,int rel));

/* In pkvec.asm: */
INTERRUPT pkvec0 __ARGS((void));
INTERRUPT pkvec1 __ARGS((void));
INTERRUPT pkvec2 __ARGS((void));

#endif	/* MSDOS */

#endif	/* _PKTDRVR_H */