1*4882a593Smuzhiyun /*
2*4882a593Smuzhiyun * Linux ARCnet driver - COM20020 chipset support - function declarations
3*4882a593Smuzhiyun *
4*4882a593Smuzhiyun * Written 1997 by David Woodhouse.
5*4882a593Smuzhiyun * Written 1994-1999 by Avery Pennarun.
6*4882a593Smuzhiyun * Derived from skeleton.c by Donald Becker.
7*4882a593Smuzhiyun *
8*4882a593Smuzhiyun * Special thanks to Contemporary Controls, Inc. (www.ccontrols.com)
9*4882a593Smuzhiyun * for sponsoring the further development of this driver.
10*4882a593Smuzhiyun *
11*4882a593Smuzhiyun * **********************
12*4882a593Smuzhiyun *
13*4882a593Smuzhiyun * The original copyright of skeleton.c was as follows:
14*4882a593Smuzhiyun *
15*4882a593Smuzhiyun * skeleton.c Written 1993 by Donald Becker.
16*4882a593Smuzhiyun * Copyright 1993 United States Government as represented by the
17*4882a593Smuzhiyun * Director, National Security Agency. This software may only be used
18*4882a593Smuzhiyun * and distributed according to the terms of the GNU General Public License as
19*4882a593Smuzhiyun * modified by SRC, incorporated herein by reference.
20*4882a593Smuzhiyun *
21*4882a593Smuzhiyun * **********************
22*4882a593Smuzhiyun *
23*4882a593Smuzhiyun * For more details, see drivers/net/arcnet.c
24*4882a593Smuzhiyun *
25*4882a593Smuzhiyun * **********************
26*4882a593Smuzhiyun */
27*4882a593Smuzhiyun #ifndef __COM20020_H
28*4882a593Smuzhiyun #define __COM20020_H
29*4882a593Smuzhiyun #include <linux/leds.h>
30*4882a593Smuzhiyun
31*4882a593Smuzhiyun int com20020_check(struct net_device *dev);
32*4882a593Smuzhiyun int com20020_found(struct net_device *dev, int shared);
33*4882a593Smuzhiyun extern const struct net_device_ops com20020_netdev_ops;
34*4882a593Smuzhiyun
35*4882a593Smuzhiyun /* The number of low I/O ports used by the card. */
36*4882a593Smuzhiyun #define ARCNET_TOTAL_SIZE 8
37*4882a593Smuzhiyun
38*4882a593Smuzhiyun #define PLX_PCI_MAX_CARDS 2
39*4882a593Smuzhiyun
40*4882a593Smuzhiyun struct ledoffsets {
41*4882a593Smuzhiyun int green;
42*4882a593Smuzhiyun int red;
43*4882a593Smuzhiyun };
44*4882a593Smuzhiyun
45*4882a593Smuzhiyun struct com20020_pci_channel_map {
46*4882a593Smuzhiyun u32 bar;
47*4882a593Smuzhiyun u32 offset;
48*4882a593Smuzhiyun u32 size; /* 0x00 - auto, e.g. length of entire bar */
49*4882a593Smuzhiyun };
50*4882a593Smuzhiyun
51*4882a593Smuzhiyun struct com20020_pci_card_info {
52*4882a593Smuzhiyun const char *name;
53*4882a593Smuzhiyun int devcount;
54*4882a593Smuzhiyun
55*4882a593Smuzhiyun struct com20020_pci_channel_map chan_map_tbl[PLX_PCI_MAX_CARDS];
56*4882a593Smuzhiyun struct com20020_pci_channel_map misc_map;
57*4882a593Smuzhiyun
58*4882a593Smuzhiyun struct ledoffsets leds[PLX_PCI_MAX_CARDS];
59*4882a593Smuzhiyun int rotary;
60*4882a593Smuzhiyun
61*4882a593Smuzhiyun unsigned int flags;
62*4882a593Smuzhiyun };
63*4882a593Smuzhiyun
64*4882a593Smuzhiyun struct com20020_priv {
65*4882a593Smuzhiyun struct com20020_pci_card_info *ci;
66*4882a593Smuzhiyun struct list_head list_dev;
67*4882a593Smuzhiyun resource_size_t misc;
68*4882a593Smuzhiyun };
69*4882a593Smuzhiyun
70*4882a593Smuzhiyun struct com20020_dev {
71*4882a593Smuzhiyun struct list_head list;
72*4882a593Smuzhiyun struct net_device *dev;
73*4882a593Smuzhiyun
74*4882a593Smuzhiyun struct led_classdev tx_led;
75*4882a593Smuzhiyun struct led_classdev recon_led;
76*4882a593Smuzhiyun
77*4882a593Smuzhiyun struct com20020_priv *pci_priv;
78*4882a593Smuzhiyun int index;
79*4882a593Smuzhiyun };
80*4882a593Smuzhiyun
81*4882a593Smuzhiyun #define COM20020_REG_W_INTMASK 0 /* writable */
82*4882a593Smuzhiyun #define COM20020_REG_R_STATUS 0 /* readable */
83*4882a593Smuzhiyun #define COM20020_REG_W_COMMAND 1 /* standard arcnet commands */
84*4882a593Smuzhiyun #define COM20020_REG_R_DIAGSTAT 1 /* diagnostic status */
85*4882a593Smuzhiyun #define COM20020_REG_W_ADDR_HI 2 /* control for IO-mapped memory */
86*4882a593Smuzhiyun #define COM20020_REG_W_ADDR_LO 3
87*4882a593Smuzhiyun #define COM20020_REG_RW_MEMDATA 4 /* data port for IO-mapped memory */
88*4882a593Smuzhiyun #define COM20020_REG_W_SUBADR 5 /* the extended port _XREG refers to */
89*4882a593Smuzhiyun #define COM20020_REG_W_CONFIG 6 /* configuration */
90*4882a593Smuzhiyun #define COM20020_REG_W_XREG 7 /* extra
91*4882a593Smuzhiyun * (indexed by _CONFIG or _SUBADDR)
92*4882a593Smuzhiyun */
93*4882a593Smuzhiyun
94*4882a593Smuzhiyun /* in the ADDR_HI register */
95*4882a593Smuzhiyun #define RDDATAflag 0x80 /* next access is a read (not a write) */
96*4882a593Smuzhiyun
97*4882a593Smuzhiyun /* in the DIAGSTAT register */
98*4882a593Smuzhiyun #define NEWNXTIDflag 0x02 /* ID to which token is passed has changed */
99*4882a593Smuzhiyun
100*4882a593Smuzhiyun /* in the CONFIG register */
101*4882a593Smuzhiyun #define RESETcfg 0x80 /* put card in reset state */
102*4882a593Smuzhiyun #define TXENcfg 0x20 /* enable TX */
103*4882a593Smuzhiyun #define XTOcfg(x) ((x) << 3) /* extended timeout */
104*4882a593Smuzhiyun
105*4882a593Smuzhiyun /* in SETUP register */
106*4882a593Smuzhiyun #define PROMISCset 0x10 /* enable RCV_ALL */
107*4882a593Smuzhiyun #define P1MODE 0x80 /* enable P1-MODE for Backplane */
108*4882a593Smuzhiyun #define SLOWARB 0x01 /* enable Slow Arbitration for >=5Mbps */
109*4882a593Smuzhiyun
110*4882a593Smuzhiyun /* COM2002x */
111*4882a593Smuzhiyun #define SUB_TENTATIVE 0 /* tentative node ID */
112*4882a593Smuzhiyun #define SUB_NODE 1 /* node ID */
113*4882a593Smuzhiyun #define SUB_SETUP1 2 /* various options */
114*4882a593Smuzhiyun #define SUB_TEST 3 /* test/diag register */
115*4882a593Smuzhiyun
116*4882a593Smuzhiyun /* COM20022 only */
117*4882a593Smuzhiyun #define SUB_SETUP2 4 /* sundry options */
118*4882a593Smuzhiyun #define SUB_BUSCTL 5 /* bus control options */
119*4882a593Smuzhiyun #define SUB_DMACOUNT 6 /* DMA count options */
120*4882a593Smuzhiyun
com20020_set_subaddress(struct arcnet_local * lp,int ioaddr,int val)121*4882a593Smuzhiyun static inline void com20020_set_subaddress(struct arcnet_local *lp,
122*4882a593Smuzhiyun int ioaddr, int val)
123*4882a593Smuzhiyun {
124*4882a593Smuzhiyun if (val < 4) {
125*4882a593Smuzhiyun lp->config = (lp->config & ~0x03) | val;
126*4882a593Smuzhiyun arcnet_outb(lp->config, ioaddr, COM20020_REG_W_CONFIG);
127*4882a593Smuzhiyun } else {
128*4882a593Smuzhiyun arcnet_outb(val, ioaddr, COM20020_REG_W_SUBADR);
129*4882a593Smuzhiyun }
130*4882a593Smuzhiyun }
131*4882a593Smuzhiyun
132*4882a593Smuzhiyun #endif /* __COM20020_H */
133