com20020.h
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上传日期:2009-04-28
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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);
- /* 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 */