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c51da42a63
The com20020-pci driver is currently designed to instance one netdev with one pci device. This patch adds support to instance many cards with one pci device, depending on the device data in the private data. Signed-off-by: Michael Grzeschik <m.grzeschik@pengutronix.de> Signed-off-by: David S. Miller <davem@davemloft.net>
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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