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/*
* Linux ARCnet driver - COM20020 chipset support - function declarations
*
* Written 1997 by David Woodhouse.
* Written 1994-1999 by Avery Pennarun.
* Derived from skeleton.c by Donald Becker.
*
* Special thanks to Contemporary Controls, Inc. (www.ccontrols.com)
* for sponsoring the further development of this driver.
*
* **********************
*
* The original copyright of skeleton.c was as follows:
*
* skeleton.c Written 1993 by Donald Becker.
* Copyright 1993 United States Government as represented by the
* Director, National Security Agency. This software may only be used
* and distributed according to the terms of the GNU General Public License as
* modified by SRC, incorporated herein by reference.
*
* **********************
*
* For more details, see drivers/net/arcnet.c
*
* **********************
*/
#ifndef __COM20020_H
#define __COM20020_H
int com20020_check(struct net_device *dev);
int com20020_found(struct net_device *dev, int shared);
extern const struct net_device_ops com20020_netdev_ops;
/* The number of low I/O ports used by the card. */
#define ARCNET_TOTAL_SIZE 8
/* various register addresses */
#ifdef CONFIG_SA1100_CT6001
#define BUS_ALIGN 2 /* 8 bit device on a 16 bit bus - needs padding */
#else
#define BUS_ALIGN 1
#endif
#define _INTMASK (ioaddr+BUS_ALIGN*0) /* writable */
#define _STATUS (ioaddr+BUS_ALIGN*0) /* readable */
#define _COMMAND (ioaddr+BUS_ALIGN*1) /* standard arcnet commands */
#define _DIAGSTAT (ioaddr+BUS_ALIGN*1) /* diagnostic status register */
#define _ADDR_HI (ioaddr+BUS_ALIGN*2) /* control registers for IO-mapped memory */
#define _ADDR_LO (ioaddr+BUS_ALIGN*3)
#define _MEMDATA (ioaddr+BUS_ALIGN*4) /* data port for IO-mapped memory */
#define _SUBADR (ioaddr+BUS_ALIGN*5) /* the extended port _XREG refers to */
#define _CONFIG (ioaddr+BUS_ALIGN*6) /* configuration register */
#define _XREG (ioaddr+BUS_ALIGN*7) /* extra registers (indexed by _CONFIG
or _SUBADR) */
/* in the ADDR_HI register */
#define RDDATAflag 0x80 /* next access is a read (not a write) */
/* in the DIAGSTAT register */
#define NEWNXTIDflag 0x02 /* ID to which token is passed has changed */
/* in the CONFIG register */
#define RESETcfg 0x80 /* put card in reset state */
#define TXENcfg 0x20 /* enable TX */
/* in SETUP register */
#define PROMISCset 0x10 /* enable RCV_ALL */
#define P1MODE 0x80 /* enable P1-MODE for Backplane */
#define SLOWARB 0x01 /* enable Slow Arbitration for >=5Mbps */
/* COM2002x */
#define SUB_TENTATIVE 0 /* tentative node ID */
#define SUB_NODE 1 /* node ID */
#define SUB_SETUP1 2 /* various options */
#define SUB_TEST 3 /* test/diag register */
/* COM20022 only */
#define SUB_SETUP2 4 /* sundry options */
#define SUB_BUSCTL 5 /* bus control options */
#define SUB_DMACOUNT 6 /* DMA count options */
#define SET_SUBADR(x) do { \
if ((x) < 4) \
{ \
lp->config = (lp->config & ~0x03) | (x); \
SETCONF; \
} \
else \
{ \
outb(x, _SUBADR); \
} \
} while (0)
#undef ARCRESET
#undef ASTATUS
#undef ACOMMAND
#undef AINTMASK
#define ARCRESET { outb(lp->config | 0x80, _CONFIG); \
udelay(5); \
outb(lp->config , _CONFIG); \
}
#define ARCRESET0 { outb(0x18 | 0x80, _CONFIG); \
udelay(5); \
outb(0x18 , _CONFIG); \
}
#define ASTATUS() inb(_STATUS)
#define ADIAGSTATUS() inb(_DIAGSTAT)
#define ACOMMAND(cmd) outb((cmd),_COMMAND)
#define AINTMASK(msk) outb((msk),_INTMASK)
#define SETCONF outb(lp->config, _CONFIG)
#endif /* __COM20020_H */