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 30int com20020_check(struct net_device *dev); 31int com20020_found(struct net_device *dev, int shared); 32extern 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 46struct com20020_pci_channel_map { 47 u32 bar; 48 u32 offset; 49 u32 size; /* 0x00 - auto, e.g. length of entire bar */ 50}; 51 52struct 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 61struct com20020_priv { 62 struct com20020_pci_card_info *ci; 63 struct list_head list_dev; 64}; 65 66struct 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 */ 146