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 | #include <linux/leds.h> |
30 | |
31 | int com20020_check(struct net_device *dev); |
32 | int com20020_found(struct net_device *dev, int shared); |
33 | extern const struct net_device_ops com20020_netdev_ops; |
34 | |
35 | /* The number of low I/O ports used by the card. */ |
36 | #define ARCNET_TOTAL_SIZE 8 |
37 | |
38 | #define PLX_PCI_MAX_CARDS 2 |
39 | |
40 | struct ledoffsets { |
41 | int green; |
42 | int red; |
43 | }; |
44 | |
45 | struct com20020_pci_channel_map { |
46 | u32 bar; |
47 | u32 offset; |
48 | u32 size; /* 0x00 - auto, e.g. length of entire bar */ |
49 | }; |
50 | |
51 | struct com20020_pci_card_info { |
52 | const char *name; |
53 | int devcount; |
54 | |
55 | struct com20020_pci_channel_map chan_map_tbl[PLX_PCI_MAX_CARDS]; |
56 | struct com20020_pci_channel_map misc_map; |
57 | |
58 | struct ledoffsets leds[PLX_PCI_MAX_CARDS]; |
59 | int rotary; |
60 | |
61 | unsigned int flags; |
62 | }; |
63 | |
64 | struct com20020_priv { |
65 | struct com20020_pci_card_info *ci; |
66 | struct list_head list_dev; |
67 | resource_size_t misc; |
68 | }; |
69 | |
70 | struct com20020_dev { |
71 | struct list_head list; |
72 | struct net_device *dev; |
73 | |
74 | struct led_classdev tx_led; |
75 | struct led_classdev recon_led; |
76 | |
77 | struct com20020_priv *pci_priv; |
78 | int index; |
79 | }; |
80 | |
81 | #define COM20020_REG_W_INTMASK 0 /* writable */ |
82 | #define COM20020_REG_R_STATUS 0 /* readable */ |
83 | #define COM20020_REG_W_COMMAND 1 /* standard arcnet commands */ |
84 | #define COM20020_REG_R_DIAGSTAT 1 /* diagnostic status */ |
85 | #define COM20020_REG_W_ADDR_HI 2 /* control for IO-mapped memory */ |
86 | #define COM20020_REG_W_ADDR_LO 3 |
87 | #define COM20020_REG_RW_MEMDATA 4 /* data port for IO-mapped memory */ |
88 | #define COM20020_REG_W_SUBADR 5 /* the extended port _XREG refers to */ |
89 | #define COM20020_REG_W_CONFIG 6 /* configuration */ |
90 | #define COM20020_REG_W_XREG 7 /* extra |
91 | * (indexed by _CONFIG or _SUBADDR) |
92 | */ |
93 | |
94 | /* in the ADDR_HI register */ |
95 | #define RDDATAflag 0x80 /* next access is a read (not a write) */ |
96 | |
97 | /* in the DIAGSTAT register */ |
98 | #define NEWNXTIDflag 0x02 /* ID to which token is passed has changed */ |
99 | |
100 | /* in the CONFIG register */ |
101 | #define RESETcfg 0x80 /* put card in reset state */ |
102 | #define TXENcfg 0x20 /* enable TX */ |
103 | #define XTOcfg(x) ((x) << 3) /* extended timeout */ |
104 | |
105 | /* in SETUP register */ |
106 | #define PROMISCset 0x10 /* enable RCV_ALL */ |
107 | #define P1MODE 0x80 /* enable P1-MODE for Backplane */ |
108 | #define SLOWARB 0x01 /* enable Slow Arbitration for >=5Mbps */ |
109 | |
110 | /* COM2002x */ |
111 | #define SUB_TENTATIVE 0 /* tentative node ID */ |
112 | #define SUB_NODE 1 /* node ID */ |
113 | #define SUB_SETUP1 2 /* various options */ |
114 | #define SUB_TEST 3 /* test/diag register */ |
115 | |
116 | /* COM20022 only */ |
117 | #define SUB_SETUP2 4 /* sundry options */ |
118 | #define SUB_BUSCTL 5 /* bus control options */ |
119 | #define SUB_DMACOUNT 6 /* DMA count options */ |
120 | |
121 | static inline void com20020_set_subaddress(struct arcnet_local *lp, |
122 | int ioaddr, int val) |
123 | { |
124 | if (val < 4) { |
125 | lp->config = (lp->config & ~0x03) | val; |
126 | arcnet_outb(lp->config, ioaddr, COM20020_REG_W_CONFIG); |
127 | } else { |
128 | arcnet_outb(val, ioaddr, COM20020_REG_W_SUBADR); |
129 | } |
130 | } |
131 | |
132 | #endif /* __COM20020_H */ |
133 | |