2 * Linux ARCnet driver - COM20020 chipset support - function declarations
4 * Written 1997 by David Woodhouse.
5 * Written 1994-1999 by Avery Pennarun.
6 * Derived from skeleton.c by Donald Becker.
8 * Special thanks to Contemporary Controls, Inc. (www.ccontrols.com)
9 * for sponsoring the further development of this driver.
11 * **********************
13 * The original copyright of skeleton.c was as follows:
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.
21 * **********************
23 * For more details, see drivers/net/arcnet.c
25 * **********************
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;
34 /* The number of low I/O ports used by the card. */
35 #define ARCNET_TOTAL_SIZE 8
37 #define PLX_PCI_MAX_CARDS 2
39 struct com20020_pci_channel_map {
42 u32 size; /* 0x00 - auto, e.g. length of entire bar */
45 struct com20020_pci_card_info {
49 struct com20020_pci_channel_map chan_map_tbl[PLX_PCI_MAX_CARDS];
54 struct com20020_priv {
55 struct com20020_pci_card_info *ci;
56 struct list_head list_dev;
60 struct list_head list;
61 struct net_device *dev;
63 struct com20020_priv *pci_priv;
67 #define COM20020_REG_W_INTMASK 0 /* writable */
68 #define COM20020_REG_R_STATUS 0 /* readable */
69 #define COM20020_REG_W_COMMAND 1 /* standard arcnet commands */
70 #define COM20020_REG_R_DIAGSTAT 1 /* diagnostic status */
71 #define COM20020_REG_W_ADDR_HI 2 /* control for IO-mapped memory */
72 #define COM20020_REG_W_ADDR_LO 3
73 #define COM20020_REG_RW_MEMDATA 4 /* data port for IO-mapped memory */
74 #define COM20020_REG_W_SUBADR 5 /* the extended port _XREG refers to */
75 #define COM20020_REG_W_CONFIG 6 /* configuration */
76 #define COM20020_REG_W_XREG 7 /* extra
77 * (indexed by _CONFIG or _SUBADDR)
80 /* in the ADDR_HI register */
81 #define RDDATAflag 0x80 /* next access is a read (not a write) */
83 /* in the DIAGSTAT register */
84 #define NEWNXTIDflag 0x02 /* ID to which token is passed has changed */
86 /* in the CONFIG register */
87 #define RESETcfg 0x80 /* put card in reset state */
88 #define TXENcfg 0x20 /* enable TX */
89 #define XTOcfg(x) ((x) << 3) /* extended timeout */
91 /* in SETUP register */
92 #define PROMISCset 0x10 /* enable RCV_ALL */
93 #define P1MODE 0x80 /* enable P1-MODE for Backplane */
94 #define SLOWARB 0x01 /* enable Slow Arbitration for >=5Mbps */
97 #define SUB_TENTATIVE 0 /* tentative node ID */
98 #define SUB_NODE 1 /* node ID */
99 #define SUB_SETUP1 2 /* various options */
100 #define SUB_TEST 3 /* test/diag register */
103 #define SUB_SETUP2 4 /* sundry options */
104 #define SUB_BUSCTL 5 /* bus control options */
105 #define SUB_DMACOUNT 6 /* DMA count options */
107 static inline void com20020_set_subaddress(struct arcnet_local *lp,
111 lp->config = (lp->config & ~0x03) | val;
112 arcnet_outb(lp->config, ioaddr, COM20020_REG_W_CONFIG);
114 arcnet_outb(val, ioaddr, COM20020_REG_W_SUBADR);
118 #endif /* __COM20020_H */