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1da177e4 LT |
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); | |
0db155de | 32 | extern const struct net_device_ops com20020_netdev_ops; |
1da177e4 LT |
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 */ |