include/linux/com20020.h

   1 /*
   2  * Linux ARCnet driver - COM20020 chipset support - function declarations
   3  *
   4  * Written 1997 by David Woodhouse.
   5  * Written 1994-1999 by Avery Pennarun.
   6  * Derived from skeleton.c by Donald Becker.
   7  *
   8  * Special thanks to Contemporary Controls, Inc. (www.ccontrols.com)
   9  *  for sponsoring the further development of this driver.
  10  *
  11  * **********************
  12  *
  13  * The original copyright of skeleton.c was as follows:
  14  *
  15  * skeleton.c Written 1993 by Donald Becker.
  16  * Copyright 1993 United States Government as represented by the
  17  * Director, National Security Agency.  This software may only be used
  18  * and distributed according to the terms of the GNU General Public License as
  19  * modified by SRC, incorporated herein by reference.
  20  *
  21  * **********************
  22  *
  23  * For more details, see drivers/net/arcnet.c
  24  *
  25  * **********************
  26  */
  27 #ifndef __COM20020_H
  28 #define __COM20020_H
  29
  30 int com20020_check(struct net_device *dev);
  31 int com20020_found(struct net_device *dev, int shared);
  32 extern const struct net_device_ops com20020_netdev_ops;
  33
  34 /* The number of low I/O ports used by the card. */
  35 #define ARCNET_TOTAL_SIZE 8
  36
  37 /* various register addresses */
  38 #ifdef CONFIG_SA1100_CT6001
  39 #define BUS_ALIGN  2  /* 8 bit device on a 16 bit bus - needs padding */
  40 #else
  41 #define BUS_ALIGN  1
  42 #endif
  43
  44 #define PLX_PCI_MAX_CARDS 2
  45
  46 struct com20020_pci_channel_map {
  47         u32 bar;
  48         u32 offset;
  49         u32 size;               /* 0x00 - auto, e.g. length of entire bar */
  50 };
  51
  52 struct com20020_pci_card_info {
  53         const char *name;
  54         int devcount;
  55
  56         struct com20020_pci_channel_map chan_map_tbl[PLX_PCI_MAX_CARDS];
  57
  58         unsigned int flags;
  59 };
  60
  61 struct com20020_priv {
  62         struct com20020_pci_card_info *ci;
  63         struct list_head list_dev;
  64 };
  65
  66 struct com20020_dev {
  67         struct list_head list;
  68         struct net_device *dev;
  69
  70         struct com20020_priv *pci_priv;
  71         int index;
  72 };
  73
  74 #define _INTMASK  (ioaddr+BUS_ALIGN*0)  /* writable */
  75 #define _STATUS   (ioaddr+BUS_ALIGN*0)  /* readable */
  76 #define _COMMAND  (ioaddr+BUS_ALIGN*1)  /* standard arcnet commands */
  77 #define _DIAGSTAT (ioaddr+BUS_ALIGN*1)  /* diagnostic status register */
  78 #define _ADDR_HI  (ioaddr+BUS_ALIGN*2)  /* control registers for IO-mapped memory */
  79 #define _ADDR_LO  (ioaddr+BUS_ALIGN*3)
  80 #define _MEMDATA  (ioaddr+BUS_ALIGN*4)  /* data port for IO-mapped memory */
  81 #define _SUBADR   (ioaddr+BUS_ALIGN*5)  /* the extended port _XREG refers to */
  82 #define _CONFIG   (ioaddr+BUS_ALIGN*6)  /* configuration register */
  83 #define _XREG     (ioaddr+BUS_ALIGN*7)  /* extra registers (indexed by _CONFIG
  84                                         or _SUBADR) */
  85
  86 /* in the ADDR_HI register */
  87 #define RDDATAflag      0x80    /* next access is a read (not a write) */
  88
  89 /* in the DIAGSTAT register */
  90 #define NEWNXTIDflag    0x02    /* ID to which token is passed has changed */
  91
  92 /* in the CONFIG register */
  93 #define RESETcfg        0x80    /* put card in reset state */
  94 #define TXENcfg         0x20    /* enable TX */
  95
  96 /* in SETUP register */
  97 #define PROMISCset      0x10    /* enable RCV_ALL */
  98 #define P1MODE          0x80    /* enable P1-MODE for Backplane */
  99 #define SLOWARB         0x01    /* enable Slow Arbitration for >=5Mbps */
 100
 101 /* COM2002x */
 102 #define SUB_TENTATIVE   0       /* tentative node ID */
 103 #define SUB_NODE        1       /* node ID */
 104 #define SUB_SETUP1      2       /* various options */
 105 #define SUB_TEST        3       /* test/diag register */
 106
 107 /* COM20022 only */
 108 #define SUB_SETUP2      4       /* sundry options */
 109 #define SUB_BUSCTL      5       /* bus control options */
 110 #define SUB_DMACOUNT    6       /* DMA count options */
 111
 112 #define SET_SUBADR(x) do { \
 113         if ((x) < 4) \
 114         { \
 115                 lp->config = (lp->config & ~0x03) | (x); \
 116                 SETCONF; \
 117         } \
 118         else \
 119         { \
 120                 outb(x, _SUBADR); \
 121         } \
 122 } while (0)
 123
 124 #undef ARCRESET
 125 #undef ASTATUS
 126 #undef ACOMMAND
 127 #undef AINTMASK
 128
 129 #define ARCRESET { outb(lp->config | 0x80, _CONFIG); \
 130                     udelay(5);                        \
 131                     outb(lp->config , _CONFIG);       \
 132                   }
 133 #define ARCRESET0 { outb(0x18 | 0x80, _CONFIG);   \
 134                     udelay(5);                       \
 135                     outb(0x18 , _CONFIG);            \
 136                   }
 137
 138 #define ASTATUS()       inb(_STATUS)
 139 #define ADIAGSTATUS()   inb(_DIAGSTAT)
 140 #define ACOMMAND(cmd)   outb((cmd),_COMMAND)
 141 #define AINTMASK(msk)   outb((msk),_INTMASK)
 142
 143 #define SETCONF         outb(lp->config, _CONFIG)
 144
 145 #endif /* __COM20020_H */