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); 32void com20020_remove(struct net_device *dev); 33 34/* The number of low I/O ports used by the card. */ 35#define ARCNET_TOTAL_SIZE 9 36 37/* various register addresses */ 38#define _INTMASK (ioaddr+0) /* writable */ 39#define _STATUS (ioaddr+0) /* readable */ 40#define _COMMAND (ioaddr+1) /* standard arcnet commands */ 41#define _DIAGSTAT (ioaddr+1) /* diagnostic status register */ 42#define _ADDR_HI (ioaddr+2) /* control registers for IO-mapped memory */ 43#define _ADDR_LO (ioaddr+3) 44#define _MEMDATA (ioaddr+4) /* data port for IO-mapped memory */ 45#define _SUBADR (ioaddr+5) /* the extended port _XREG refers to */ 46#define _CONFIG (ioaddr+6) /* configuration register */ 47#define _XREG (ioaddr+7) /* extra registers (indexed by _CONFIG 48 or _SUBADR) */ 49 50/* in the ADDR_HI register */ 51#define RDDATAflag 0x80 /* next access is a read (not a write) */ 52 53/* in the DIAGSTAT register */ 54#define NEWNXTIDflag 0x02 /* ID to which token is passed has changed */ 55 56/* in the CONFIG register */ 57#define RESETcfg 0x80 /* put card in reset state */ 58#define TXENcfg 0x20 /* enable TX */ 59 60/* in SETUP register */ 61#define PROMISCset 0x10 /* enable RCV_ALL */ 62 63/* COM2002x */ 64#define SUB_TENTATIVE 0 /* tentative node ID */ 65#define SUB_NODE 1 /* node ID */ 66#define SUB_SETUP1 2 /* various options */ 67#define SUB_TEST 3 /* test/diag register */ 68 69/* COM20022 only */ 70#define SUB_SETUP2 4 /* sundry options */ 71#define SUB_BUSCTL 5 /* bus control options */ 72#define SUB_DMACOUNT 6 /* DMA count options */ 73 74#define SET_SUBADR(x) do { \ 75 if ((x) < 4) \ 76 { \ 77 lp->config = (lp->config & ~0x03) | (x); \ 78 SETCONF; \ 79 } \ 80 else \ 81 { \ 82 outb(x, _SUBADR); \ 83 } \ 84} while (0) 85 86#undef ARCRESET 87#undef ASTATUS 88#undef ACOMMAND 89#undef AINTMASK 90 91#define ARCRESET { outb(lp->config | 0x80, _CONFIG); \ 92 udelay(5); \ 93 outb(lp->config , _CONFIG); \ 94 } 95#define ARCRESET0 { outb(0x18 | 0x80, _CONFIG); \ 96 udelay(5); \ 97 outb(0x18 , _CONFIG); \ 98 } 99 100#define ASTATUS() inb(_STATUS) 101#define ACOMMAND(cmd) outb((cmd),_COMMAND) 102#define AINTMASK(msk) outb((msk),_INTMASK) 103 104#define SETCONF outb(lp->config, _CONFIG) 105 106#endif /* __COM20020_H */ 107