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 45 #define _INTMASK (ioaddr+BUS_ALIGN*0) /* writable */ 46 #define _STATUS (ioaddr+BUS_ALIGN*0) /* readable */ 47 #define _COMMAND (ioaddr+BUS_ALIGN*1) /* standard arcnet commands */ 48 #define _DIAGSTAT (ioaddr+BUS_ALIGN*1) /* diagnostic status register */ 49 #define _ADDR_HI (ioaddr+BUS_ALIGN*2) /* control registers for IO-mapped memory */ 50 #define _ADDR_LO (ioaddr+BUS_ALIGN*3) 51 #define _MEMDATA (ioaddr+BUS_ALIGN*4) /* data port for IO-mapped memory */ 52 #define _SUBADR (ioaddr+BUS_ALIGN*5) /* the extended port _XREG refers to */ 53 #define _CONFIG (ioaddr+BUS_ALIGN*6) /* configuration register */ 54 #define _XREG (ioaddr+BUS_ALIGN*7) /* extra registers (indexed by _CONFIG 55 or _SUBADR) */ 56 57 /* in the ADDR_HI register */ 58 #define RDDATAflag 0x80 /* next access is a read (not a write) */ 59 60 /* in the DIAGSTAT register */ 61 #define NEWNXTIDflag 0x02 /* ID to which token is passed has changed */ 62 63 /* in the CONFIG register */ 64 #define RESETcfg 0x80 /* put card in reset state */ 65 #define TXENcfg 0x20 /* enable TX */ 66 67 /* in SETUP register */ 68 #define PROMISCset 0x10 /* enable RCV_ALL */ 69 #define P1MODE 0x80 /* enable P1-MODE for Backplane */ 70 #define SLOWARB 0x01 /* enable Slow Arbitration for >=5Mbps */ 71 72 /* COM2002x */ 73 #define SUB_TENTATIVE 0 /* tentative node ID */ 74 #define SUB_NODE 1 /* node ID */ 75 #define SUB_SETUP1 2 /* various options */ 76 #define SUB_TEST 3 /* test/diag register */ 77 78 /* COM20022 only */ 79 #define SUB_SETUP2 4 /* sundry options */ 80 #define SUB_BUSCTL 5 /* bus control options */ 81 #define SUB_DMACOUNT 6 /* DMA count options */ 82 83 #define SET_SUBADR(x) do { \ 84 if ((x) < 4) \ 85 { \ 86 lp->config = (lp->config & ~0x03) | (x); \ 87 SETCONF; \ 88 } \ 89 else \ 90 { \ 91 outb(x, _SUBADR); \ 92 } \ 93 } while (0) 94 95 #undef ARCRESET 96 #undef ASTATUS 97 #undef ACOMMAND 98 #undef AINTMASK 99 100 #define ARCRESET { outb(lp->config | 0x80, _CONFIG); \ 101 udelay(5); \ 102 outb(lp->config , _CONFIG); \ 103 } 104 #define ARCRESET0 { outb(0x18 | 0x80, _CONFIG); \ 105 udelay(5); \ 106 outb(0x18 , _CONFIG); \ 107 } 108 109 #define ASTATUS() inb(_STATUS) 110 #define ADIAGSTATUS() inb(_DIAGSTAT) 111 #define ACOMMAND(cmd) outb((cmd),_COMMAND) 112 #define AINTMASK(msk) outb((msk),_INTMASK) 113 114 #define SETCONF outb(lp->config, _CONFIG) 115 116 #endif /* __COM20020_H */ 117