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1 /* |
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2 * Linux ARCnet driver - COM20020 chipset support - function declarations |
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3 * |
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4 * Written 1997 by David Woodhouse. |
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5 * Written 1994-1999 by Avery Pennarun. |
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6 * Derived from skeleton.c by Donald Becker. |
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7 * |
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8 * Special thanks to Contemporary Controls, Inc. (www.ccontrols.com) |
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9 * for sponsoring the further development of this driver. |
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10 * |
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11 * ********************** |
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12 * |
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13 * The original copyright of skeleton.c was as follows: |
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14 * |
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15 * skeleton.c Written 1993 by Donald Becker. |
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16 * Copyright 1993 United States Government as represented by the |
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17 * Director, National Security Agency. This software may only be used |
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18 * and distributed according to the terms of the GNU General Public License as |
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19 * modified by SRC, incorporated herein by reference. |
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20 * |
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21 * ********************** |
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22 * |
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23 * For more details, see drivers/net/arcnet.c |
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24 * |
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25 * ********************** |
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26 */ |
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27 #ifndef __COM20020_H |
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28 #define __COM20020_H |
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29 |
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30 int com20020_check(struct net_device *dev); |
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31 int com20020_found(struct net_device *dev, int shared); |
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32 |
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33 /* The number of low I/O ports used by the card. */ |
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34 #define ARCNET_TOTAL_SIZE 8 |
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35 |
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36 /* various register addresses */ |
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37 #ifdef CONFIG_SA1100_CT6001 |
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38 #define BUS_ALIGN 2 /* 8 bit device on a 16 bit bus - needs padding */ |
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39 #else |
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40 #define BUS_ALIGN 1 |
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41 #endif |
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42 |
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43 |
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44 #define _INTMASK (ioaddr+BUS_ALIGN*0) /* writable */ |
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45 #define _STATUS (ioaddr+BUS_ALIGN*0) /* readable */ |
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46 #define _COMMAND (ioaddr+BUS_ALIGN*1) /* standard arcnet commands */ |
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47 #define _DIAGSTAT (ioaddr+BUS_ALIGN*1) /* diagnostic status register */ |
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48 #define _ADDR_HI (ioaddr+BUS_ALIGN*2) /* control registers for IO-mapped memory */ |
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49 #define _ADDR_LO (ioaddr+BUS_ALIGN*3) |
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50 #define _MEMDATA (ioaddr+BUS_ALIGN*4) /* data port for IO-mapped memory */ |
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51 #define _SUBADR (ioaddr+BUS_ALIGN*5) /* the extended port _XREG refers to */ |
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52 #define _CONFIG (ioaddr+BUS_ALIGN*6) /* configuration register */ |
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53 #define _XREG (ioaddr+BUS_ALIGN*7) /* extra registers (indexed by _CONFIG |
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54 or _SUBADR) */ |
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55 |
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56 /* in the ADDR_HI register */ |
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57 #define RDDATAflag 0x80 /* next access is a read (not a write) */ |
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58 |
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59 /* in the DIAGSTAT register */ |
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60 #define NEWNXTIDflag 0x02 /* ID to which token is passed has changed */ |
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61 |
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62 /* in the CONFIG register */ |
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63 #define RESETcfg 0x80 /* put card in reset state */ |
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64 #define TXENcfg 0x20 /* enable TX */ |
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65 |
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66 /* in SETUP register */ |
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67 #define PROMISCset 0x10 /* enable RCV_ALL */ |
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68 #define P1MODE 0x80 /* enable P1-MODE for Backplane */ |
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69 #define SLOWARB 0x01 /* enable Slow Arbitration for >=5Mbps */ |
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70 |
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71 /* COM2002x */ |
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72 #define SUB_TENTATIVE 0 /* tentative node ID */ |
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73 #define SUB_NODE 1 /* node ID */ |
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74 #define SUB_SETUP1 2 /* various options */ |
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75 #define SUB_TEST 3 /* test/diag register */ |
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76 |
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77 /* COM20022 only */ |
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78 #define SUB_SETUP2 4 /* sundry options */ |
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79 #define SUB_BUSCTL 5 /* bus control options */ |
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80 #define SUB_DMACOUNT 6 /* DMA count options */ |
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81 |
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82 #define SET_SUBADR(x) do { \ |
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83 if ((x) < 4) \ |
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84 { \ |
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85 lp->config = (lp->config & ~0x03) | (x); \ |
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86 SETCONF; \ |
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87 } \ |
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88 else \ |
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89 { \ |
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90 outb(x, _SUBADR); \ |
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91 } \ |
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92 } while (0) |
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93 |
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94 #undef ARCRESET |
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95 #undef ASTATUS |
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96 #undef ACOMMAND |
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97 #undef AINTMASK |
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98 |
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99 #define ARCRESET { outb(lp->config | 0x80, _CONFIG); \ |
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100 udelay(5); \ |
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101 outb(lp->config , _CONFIG); \ |
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102 } |
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103 #define ARCRESET0 { outb(0x18 | 0x80, _CONFIG); \ |
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104 udelay(5); \ |
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105 outb(0x18 , _CONFIG); \ |
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106 } |
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107 |
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108 #define ASTATUS() inb(_STATUS) |
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109 #define ADIAGSTATUS() inb(_DIAGSTAT) |
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110 #define ACOMMAND(cmd) outb((cmd),_COMMAND) |
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111 #define AINTMASK(msk) outb((msk),_INTMASK) |
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112 |
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113 #define SETCONF outb(lp->config, _CONFIG) |
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114 |
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115 #endif /* __COM20020_H */ |