133 lines · c
1/*2 * Linux ARCnet driver - COM20020 chipset support - function declarations3 *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 the17 * Director, National Security Agency. This software may only be used18 * and distributed according to the terms of the GNU General Public License as19 * modified by SRC, incorporated herein by reference.20 *21 * **********************22 *23 * For more details, see drivers/net/arcnet.c24 *25 * **********************26 */27#ifndef __COM20020_H28#define __COM20020_H29#include <linux/leds.h>30 31int com20020_check(struct net_device *dev);32int com20020_found(struct net_device *dev, int shared);33extern 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 837 38#define PLX_PCI_MAX_CARDS 239 40struct ledoffsets {41 int green;42 int red;43};44 45struct com20020_pci_channel_map {46 u32 bar;47 u32 offset;48 u32 size; /* 0x00 - auto, e.g. length of entire bar */49};50 51struct 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 64struct com20020_priv {65 struct com20020_pci_card_info *ci;66 struct list_head list_dev;67 resource_size_t misc;68};69 70struct 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 387#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 /* extra91 * (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 121static 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