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include/linux/com20020.h 3.54 KB
1da177e4c   Linus Torvalds   Linux-2.6.12-rc2
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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);
0db155de9   David S. Miller   com20020: Fix all...
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  extern const struct net_device_ops com20020_netdev_ops;
1da177e4c   Linus Torvalds   Linux-2.6.12-rc2
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  /* 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 */