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 33 /* The number of low I/O ports used by the card. */ 34 #define ARCNET_TOTAL_SIZE 8 35 36 /* various register addresses */ 37 #ifdef CONFIG_SA1100_CT6001 38 #define BUS_ALIGN 2 /* 8 bit device on a 16 bit bus - needs padding */ 39 #else 40 #define BUS_ALIGN 1 41 #endif 42 43 44 #define _INTMASK (ioaddr+BUS_ALIGN*0) /* writable */ 45 #define _STATUS (ioaddr+BUS_ALIGN*0) /* readable */ 46 #define _COMMAND (ioaddr+BUS_ALIGN*1) /* standard arcnet commands */ 47 #define _DIAGSTAT (ioaddr+BUS_ALIGN*1) /* diagnostic status register */ 48 #define _ADDR_HI (ioaddr+BUS_ALIGN*2) /* control registers for IO-mapped memory */ 49 #define _ADDR_LO (ioaddr+BUS_ALIGN*3) 50 #define _MEMDATA (ioaddr+BUS_ALIGN*4) /* data port for IO-mapped memory */ 51 #define _SUBADR (ioaddr+BUS_ALIGN*5) /* the extended port _XREG refers to */ 52 #define _CONFIG (ioaddr+BUS_ALIGN*6) /* configuration register */ 53 #define _XREG (ioaddr+BUS_ALIGN*7) /* extra registers (indexed by _CONFIG 54 or _SUBADR) */ 55 56 /* in the ADDR_HI register */ 57 #define RDDATAflag 0x80 /* next access is a read (not a write) */ 58 59 /* in the DIAGSTAT register */ 60 #define NEWNXTIDflag 0x02 /* ID to which token is passed has changed */ 61 62 /* in the CONFIG register */ 63 #define RESETcfg 0x80 /* put card in reset state */ 64 #define TXENcfg 0x20 /* enable TX */ 65 66 /* in SETUP register */ 67 #define PROMISCset 0x10 /* enable RCV_ALL */ 68 #define P1MODE 0x80 /* enable P1-MODE for Backplane */ 69 #define SLOWARB 0x01 /* enable Slow Arbitration for >=5Mbps */ 70 71 /* COM2002x */ 72 #define SUB_TENTATIVE 0 /* tentative node ID */ 73 #define SUB_NODE 1 /* node ID */ 74 #define SUB_SETUP1 2 /* various options */ 75 #define SUB_TEST 3 /* test/diag register */ 76 77 /* COM20022 only */ 78 #define SUB_SETUP2 4 /* sundry options */ 79 #define SUB_BUSCTL 5 /* bus control options */ 80 #define SUB_DMACOUNT 6 /* DMA count options */ 81 82 #define SET_SUBADR(x) do { \ 83 if ((x) < 4) \ 84 { \ 85 lp->config = (lp->config & ~0x03) | (x); \ 86 SETCONF; \ 87 } \ 88 else \ 89 { \ 90 outb(x, _SUBADR); \ 91 } \ 92 } while (0) 93 94 #undef ARCRESET 95 #undef ASTATUS 96 #undef ACOMMAND 97 #undef AINTMASK 98 99 #define ARCRESET { outb(lp->config | 0x80, _CONFIG); \ 100 udelay(5); \ 101 outb(lp->config , _CONFIG); \ 102 } 103 #define ARCRESET0 { outb(0x18 | 0x80, _CONFIG); \ 104 udelay(5); \ 105 outb(0x18 , _CONFIG); \ 106 } 107 108 #define ASTATUS() inb(_STATUS) 109 #define ADIAGSTATUS() inb(_DIAGSTAT) 110 #define ACOMMAND(cmd) outb((cmd),_COMMAND) 111 #define AINTMASK(msk) outb((msk),_INTMASK) 112 113 #define SETCONF outb(lp->config, _CONFIG) 114 115 #endif /* __COM20020_H */ 116