xref: /src/sys/dev/ic/dp8390var.h

/*	$NetBSD: dp8390var.h,v 1.37 2024/02/02 22:23:53 andvar Exp $	*/

/*
 * Device driver for National Semiconductor DS8390/WD83C690 based ethernet
 * adapters.
 *
 * Copyright (c) 1994, 1995 Charles M. Hannum.  All rights reserved.
 *
 * Copyright (C) 1993, David Greenman.  This software may be used, modified,
 * copied, distributed, and sold, in both source and binary form provided that
 * the above copyright and these terms are retained.  Under no circumstances is
 * the author responsible for the proper functioning of this software, nor does
 * the author assume any responsibility for damages incurred with its use.
 */

#include <sys/rndsource.h>

/*
 * We include MII glue here -- some DP8390 compatible chips have
 * MII interfaces on them (scary, isn't it...).
 */
#include <sys/callout.h>
#include <dev/mii/miivar.h>

#define INTERFACE_NAME_LEN	32

/*
 * dp8390_softc: per line info and status
 */
struct dp8390_softc {
	device_t	sc_dev;
	void	*sc_ih;
	int	sc_flags;		/* interface flags, from config */

	struct ethercom sc_ec;		/* ethernet common */
	struct mii_data sc_mii;		/* MII glue */
#define	sc_media sc_mii.mii_media	/* compatibility definition */
	callout_t	sc_tick_ch;	/* MII tick callout */

	bus_space_tag_t	sc_regt;	/* NIC register space tag */
	bus_space_handle_t sc_regh;	/* NIC register space handle */
	bus_space_tag_t	sc_buft;	/* Buffer space tag */
	bus_space_handle_t sc_bufh;	/* Buffer space handle */

	bus_size_t sc_reg_map[16];	/* register map (offsets) */

	int	is790;		/* NIC is a 790 */

	u_int8_t cr_proto;	/* values always set in CR */
	u_int8_t rcr_proto;	/* values always set in RCR */
	u_int8_t dcr_reg;	/* override DCR iff LS is set */

	int	mem_start;	/* offset of NIC memory */
	int	mem_end;	/* offset of NIC memory end */
	int	mem_size;	/* total shared memory size */
	int	mem_ring;	/* offset of start of RX ring-buffer */

	u_short	txb_cnt;	/* Number of transmit buffers */
	u_short	txb_inuse;	/* number of transmit buffers active */

	u_short	txb_new;	/* pointer to where new buffer will be added */
	u_short	txb_next_tx;	/* pointer to next buffer ready to xmit */
	u_short	txb_len[8];	/* buffered xmit buffer lengths */
	u_short	tx_page_start;	/* first page of TX buffer area */
	u_short	rec_page_start; /* first page of RX ring-buffer */
	u_short	rec_page_stop;	/* last page of RX ring-buffer */
	u_short	next_packet;	/* pointer to next unread RX packet */

	u_int8_t sc_enaddr[ETHER_ADDR_LEN];	/* storage for MAC address */

	int	sc_enabled;	/* boolean; power enabled on interface */

	krndsource_t rnd_source; /* random source */

	int	(*test_mem)(struct dp8390_softc *);
	void	(*init_card)(struct dp8390_softc *);
	void	(*stop_card)(struct dp8390_softc *);
	void	(*read_hdr)(struct dp8390_softc *, int, struct dp8390_ring *);
	void	(*recv_int)(struct dp8390_softc *);
	int	(*ring_copy)(struct dp8390_softc *, int, void *, u_short);
	int	(*write_mbuf)(struct dp8390_softc *, struct mbuf *, int);

	int	(*sc_enable)(struct dp8390_softc *);
	void	(*sc_disable)(struct dp8390_softc *);

	void	(*sc_media_init)(struct dp8390_softc *);
	void	(*sc_media_fini)(struct dp8390_softc *);

	int	(*sc_mediachange)(struct dp8390_softc *);
	void	(*sc_mediastatus)(struct dp8390_softc *, struct ifmediareq *);
};

/*
 * Vendor types
 */
#define DP8390_VENDOR_UNKNOWN	0xff	/* Unknown network card */
#define DP8390_VENDOR_WD_SMC	0x00	/* Western Digital/SMC */
#define DP8390_VENDOR_3COM	0x01	/* 3Com */
#define DP8390_VENDOR_NOVELL	0x02	/* Novell */
#define DP8390_VENDOR_APPLE	0x10	/* Apple Ethernet card */
#define DP8390_VENDOR_INTERLAN	0x11	/* Interlan A310 card (GatorCard) */
#define DP8390_VENDOR_DAYNA	0x12	/* DaynaPORT E/30s (and others?) */
#define DP8390_VENDOR_ASANTE	0x13	/* Asante MacCon II/E */
#define DP8390_VENDOR_FARALLON	0x14	/* Farallon EtherMac II-TP */
#define DP8390_VENDOR_FOCUS	0x15	/* FOCUS Enhancements EtherLAN */
#define DP8390_VENDOR_KINETICS	0x16	/* Kinetics EtherPort SE/30 */
#define DP8390_VENDOR_CABLETRON	0x17	/* Cabletron Ethernet */

/*
 * Compile-time config flags
 */
/*
 * This sets the default for enabling/disabling the transceiver.
 */
#define DP8390_DISABLE_TRANSCEIVER	0x0001

/*
 * This forces the board to be used in 8/16-bit mode even if it autoconfigs
 * differently.
 */
#define DP8390_FORCE_8BIT_MODE		0x0002
#define DP8390_FORCE_16BIT_MODE		0x0004

/*
 * This disables the use of multiple transmit buffers.
 */
#define DP8390_NO_MULTI_BUFFERING	0x0008

/*
 * This forces all operations with the NIC memory to use Programmed I/O (i.e.
 * not via shared memory).
 */
#define DP8390_FORCE_PIO		0x0010

/*
 * The chip is ASIX AX88190 and needs work around.
 */
#define	DP8390_DO_AX88190_WORKAROUND	0x0020

#define DP8390_ATTACHED			0x0040	/* attach has succeeded */

/*
 * ASIX AX88796 doesn't have remote DMA conmplete bit in ISR, so don't
 * check ISR.RDC
 */
#define DP8390_NO_REMOTE_DMA_COMPLETE	0x0080

/*
 * NIC register access macros
 */
#define NIC_GET(t, h, reg)	bus_space_read_1(t, h,			\
				    ((sc)->sc_reg_map[reg]))
#define NIC_PUT(t, h, reg, val)	bus_space_write_1(t, h,			\
				    ((sc)->sc_reg_map[reg]), (val))
#define	NIC_BARRIER(t, h)	bus_space_barrier(t, h, 0, 0x10,	\
			    BUS_SPACE_BARRIER_READ | BUS_SPACE_BARRIER_WRITE)

int	dp8390_config(struct dp8390_softc *);
int	dp8390_intr(void *);
int	dp8390_ioctl(struct ifnet *, u_long, void *);
void	dp8390_start(struct ifnet *);
void	dp8390_watchdog(struct ifnet *);
void	dp8390_reset(struct dp8390_softc *);
void	dp8390_init(struct dp8390_softc *);
void	dp8390_stop(struct dp8390_softc *);

void	dp8390_rint(struct dp8390_softc *);

void	dp8390_getmcaf(struct ethercom *, u_int8_t *);
struct mbuf *dp8390_get(struct dp8390_softc *, int, u_short);
void	dp8390_read(struct dp8390_softc *, int, u_short);

int	dp8390_enable(struct dp8390_softc *);
void	dp8390_disable(struct dp8390_softc *);

int	dp8390_activate(device_t, enum devact);

int	dp8390_detach(struct dp8390_softc *, int);

int	dp8390_mediachange(struct ifnet *);
void	dp8390_mediastatus(struct ifnet *, struct ifmediareq *);

void	dp8390_media_init(struct dp8390_softc *);