drivers/net/arcnet/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 #include <linux/leds.h>
  30
  31 int com20020_check(struct net_device *dev);
  32 int com20020_found(struct net_device *dev, int shared);
  33 extern const struct net_device_ops com20020_netdev_ops;
  34
  35 /* The number of low I/O ports used by the card. */
  36 #define ARCNET_TOTAL_SIZE 8
  37
  38 #define PLX_PCI_MAX_CARDS 2
  39
  40 struct ledoffsets {
  41         int green;
  42         int red;
  43 };
  44
  45 struct com20020_pci_channel_map {
  46         u32 bar;
  47         u32 offset;
  48         u32 size;               /* 0x00 - auto, e.g. length of entire bar */
  49 };
  50
  51 struct com20020_pci_card_info {
  52         const char *name;
  53         int devcount;
  54
  55         struct com20020_pci_channel_map chan_map_tbl[PLX_PCI_MAX_CARDS];
  56         struct com20020_pci_channel_map misc_map;
  57
  58         struct ledoffsets leds[PLX_PCI_MAX_CARDS];
  59         int rotary;
  60
  61         unsigned int flags;
  62 };
  63
  64 struct com20020_priv {
  65         struct com20020_pci_card_info *ci;
  66         struct list_head list_dev;
  67         resource_size_t misc;
  68 };
  69
  70 struct com20020_dev {
  71         struct list_head list;
  72         struct net_device *dev;
  73
  74         struct led_classdev tx_led;
  75         struct led_classdev recon_led;
  76
  77         struct com20020_priv *pci_priv;
  78         int index;
  79 };
  80
  81 #define COM20020_REG_W_INTMASK  0       /* writable */
  82 #define COM20020_REG_R_STATUS   0       /* readable */
  83 #define COM20020_REG_W_COMMAND  1       /* standard arcnet commands */
  84 #define COM20020_REG_R_DIAGSTAT 1       /* diagnostic status */
  85 #define COM20020_REG_W_ADDR_HI  2       /* control for IO-mapped memory */
  86 #define COM20020_REG_W_ADDR_LO  3
  87 #define COM20020_REG_RW_MEMDATA 4       /* data port for IO-mapped memory */
  88 #define COM20020_REG_W_SUBADR   5       /* the extended port _XREG refers to */
  89 #define COM20020_REG_W_CONFIG   6       /* configuration */
  90 #define COM20020_REG_W_XREG     7       /* extra
  91                                          * (indexed by _CONFIG or _SUBADDR)
  92                                          */
  93
  94 /* in the ADDR_HI register */
  95 #define RDDATAflag      0x80    /* next access is a read (not a write) */
  96
  97 /* in the DIAGSTAT register */
  98 #define NEWNXTIDflag    0x02    /* ID to which token is passed has changed */
  99
 100 /* in the CONFIG register */
 101 #define RESETcfg        0x80    /* put card in reset state */
 102 #define TXENcfg         0x20    /* enable TX */
 103 #define XTOcfg(x)       ((x) << 3)      /* extended timeout */
 104
 105 /* in SETUP register */
 106 #define PROMISCset      0x10    /* enable RCV_ALL */
 107 #define P1MODE          0x80    /* enable P1-MODE for Backplane */
 108 #define SLOWARB         0x01    /* enable Slow Arbitration for >=5Mbps */
 109
 110 /* COM2002x */
 111 #define SUB_TENTATIVE   0       /* tentative node ID */
 112 #define SUB_NODE        1       /* node ID */
 113 #define SUB_SETUP1      2       /* various options */
 114 #define SUB_TEST        3       /* test/diag register */
 115
 116 /* COM20022 only */
 117 #define SUB_SETUP2      4       /* sundry options */
 118 #define SUB_BUSCTL      5       /* bus control options */
 119 #define SUB_DMACOUNT    6       /* DMA count options */
 120
 121 static inline void com20020_set_subaddress(struct arcnet_local *lp,
 122                                            int ioaddr, int val)
 123 {
 124         if (val < 4) {
 125                 lp->config = (lp->config & ~0x03) | val;
 126                 arcnet_outb(lp->config, ioaddr, COM20020_REG_W_CONFIG);
 127         } else {
 128                 arcnet_outb(val, ioaddr, COM20020_REG_W_SUBADR);
 129         }
 130 }
 131
 132 #endif /* __COM20020_H */