146 lines
4.1 KiB
C
146 lines
4.1 KiB
C
/*
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* Linux ARCnet driver - COM20020 chipset support - function declarations
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*
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* Written 1997 by David Woodhouse.
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* Written 1994-1999 by Avery Pennarun.
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* Derived from skeleton.c by Donald Becker.
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*
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* Special thanks to Contemporary Controls, Inc. (www.ccontrols.com)
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* for sponsoring the further development of this driver.
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*
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* **********************
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*
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* The original copyright of skeleton.c was as follows:
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*
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* skeleton.c Written 1993 by Donald Becker.
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* Copyright 1993 United States Government as represented by the
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* Director, National Security Agency. This software may only be used
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* and distributed according to the terms of the GNU General Public License as
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* modified by SRC, incorporated herein by reference.
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*
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* **********************
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*
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* For more details, see drivers/net/arcnet.c
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*
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* **********************
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*/
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#ifndef __COM20020_H
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#define __COM20020_H
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int com20020_check(struct net_device *dev);
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int com20020_found(struct net_device *dev, int shared);
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extern const struct net_device_ops com20020_netdev_ops;
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/* The number of low I/O ports used by the card. */
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#define ARCNET_TOTAL_SIZE 8
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/* various register addresses */
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#ifdef CONFIG_SA1100_CT6001
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#define BUS_ALIGN 2 /* 8 bit device on a 16 bit bus - needs padding */
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#else
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#define BUS_ALIGN 1
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#endif
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#define PLX_PCI_MAX_CARDS 2
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struct com20020_pci_channel_map {
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u32 bar;
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u32 offset;
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u32 size; /* 0x00 - auto, e.g. length of entire bar */
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};
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struct com20020_pci_card_info {
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const char *name;
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int devcount;
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struct com20020_pci_channel_map chan_map_tbl[PLX_PCI_MAX_CARDS];
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unsigned int flags;
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};
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struct com20020_priv {
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struct com20020_pci_card_info *ci;
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struct list_head list_dev;
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};
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struct com20020_dev {
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struct list_head list;
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struct net_device *dev;
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struct com20020_priv *pci_priv;
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int index;
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};
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#define _INTMASK (ioaddr+BUS_ALIGN*0) /* writable */
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#define _STATUS (ioaddr+BUS_ALIGN*0) /* readable */
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#define _COMMAND (ioaddr+BUS_ALIGN*1) /* standard arcnet commands */
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#define _DIAGSTAT (ioaddr+BUS_ALIGN*1) /* diagnostic status register */
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#define _ADDR_HI (ioaddr+BUS_ALIGN*2) /* control registers for IO-mapped memory */
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#define _ADDR_LO (ioaddr+BUS_ALIGN*3)
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#define _MEMDATA (ioaddr+BUS_ALIGN*4) /* data port for IO-mapped memory */
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#define _SUBADR (ioaddr+BUS_ALIGN*5) /* the extended port _XREG refers to */
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#define _CONFIG (ioaddr+BUS_ALIGN*6) /* configuration register */
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#define _XREG (ioaddr+BUS_ALIGN*7) /* extra registers (indexed by _CONFIG
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or _SUBADR) */
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/* in the ADDR_HI register */
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#define RDDATAflag 0x80 /* next access is a read (not a write) */
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/* in the DIAGSTAT register */
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#define NEWNXTIDflag 0x02 /* ID to which token is passed has changed */
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/* in the CONFIG register */
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#define RESETcfg 0x80 /* put card in reset state */
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#define TXENcfg 0x20 /* enable TX */
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/* in SETUP register */
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#define PROMISCset 0x10 /* enable RCV_ALL */
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#define P1MODE 0x80 /* enable P1-MODE for Backplane */
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#define SLOWARB 0x01 /* enable Slow Arbitration for >=5Mbps */
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/* COM2002x */
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#define SUB_TENTATIVE 0 /* tentative node ID */
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#define SUB_NODE 1 /* node ID */
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#define SUB_SETUP1 2 /* various options */
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#define SUB_TEST 3 /* test/diag register */
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/* COM20022 only */
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#define SUB_SETUP2 4 /* sundry options */
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#define SUB_BUSCTL 5 /* bus control options */
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#define SUB_DMACOUNT 6 /* DMA count options */
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#define SET_SUBADR(x) do { \
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if ((x) < 4) \
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{ \
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lp->config = (lp->config & ~0x03) | (x); \
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SETCONF; \
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} \
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else \
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{ \
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outb(x, _SUBADR); \
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} \
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} while (0)
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#undef ARCRESET
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#undef ASTATUS
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#undef ACOMMAND
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#undef AINTMASK
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#define ARCRESET { outb(lp->config | 0x80, _CONFIG); \
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udelay(5); \
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outb(lp->config , _CONFIG); \
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}
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#define ARCRESET0 { outb(0x18 | 0x80, _CONFIG); \
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udelay(5); \
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outb(0x18 , _CONFIG); \
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}
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#define ASTATUS() inb(_STATUS)
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#define ADIAGSTATUS() inb(_DIAGSTAT)
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#define ACOMMAND(cmd) outb((cmd),_COMMAND)
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#define AINTMASK(msk) outb((msk),_INTMASK)
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#define SETCONF outb(lp->config, _CONFIG)
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#endif /* __COM20020_H */
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