com20020.h
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/*
* Linux ARCnet driver - COM20020 chipset support - function declarations
*
* Written 1997 by David Woodhouse.
* Written 1994-1999 by Avery Pennarun.
* Derived from skeleton.c by Donald Becker.
*
* Special thanks to Contemporary Controls, Inc. (www.ccontrols.com)
* for sponsoring the further development of this driver.
*
* **********************
*
* The original copyright of skeleton.c was as follows:
*
* skeleton.c Written 1993 by Donald Becker.
* Copyright 1993 United States Government as represented by the
* Director, National Security Agency. This software may only be used
* and distributed according to the terms of the GNU General Public License as
* modified by SRC, incorporated herein by reference.
*
* **********************
*
* For more details, see drivers/net/arcnet.c
*
* **********************
*/
#ifndef __COM20020_H
#define __COM20020_H
#include <linux/leds.h>
int com20020_check(struct net_device *dev);
int com20020_found(struct net_device *dev, int shared);
extern const struct net_device_ops com20020_netdev_ops;
/* The number of low I/O ports used by the card. */
#define ARCNET_TOTAL_SIZE 8
#define PLX_PCI_MAX_CARDS 2
struct ledoffsets {
int green;
int red;
};
struct com20020_pci_channel_map {
u32 bar;
u32 offset;
u32 size; /* 0x00 - auto, e.g. length of entire bar */
};
struct com20020_pci_card_info {
const char *name;
int devcount;
struct com20020_pci_channel_map chan_map_tbl[PLX_PCI_MAX_CARDS];
struct com20020_pci_channel_map misc_map;
struct ledoffsets leds[PLX_PCI_MAX_CARDS];
int rotary;
unsigned int flags;
};
struct com20020_priv {
struct com20020_pci_card_info *ci;
struct list_head list_dev;
resource_size_t misc;
};
struct com20020_dev {
struct list_head list;
struct net_device *dev;
struct led_classdev tx_led;
struct led_classdev recon_led;
struct com20020_priv *pci_priv;
int index;
};
#define COM20020_REG_W_INTMASK 0 /* writable */
#define COM20020_REG_R_STATUS 0 /* readable */
#define COM20020_REG_W_COMMAND 1 /* standard arcnet commands */
#define COM20020_REG_R_DIAGSTAT 1 /* diagnostic status */
#define COM20020_REG_W_ADDR_HI 2 /* control for IO-mapped memory */
#define COM20020_REG_W_ADDR_LO 3
#define COM20020_REG_RW_MEMDATA 4 /* data port for IO-mapped memory */
#define COM20020_REG_W_SUBADR 5 /* the extended port _XREG refers to */
#define COM20020_REG_W_CONFIG 6 /* configuration */
#define COM20020_REG_W_XREG 7 /* extra
* (indexed by _CONFIG or _SUBADDR)
*/
/* in the ADDR_HI register */
#define RDDATAflag 0x80 /* next access is a read (not a write) */
/* in the DIAGSTAT register */
#define NEWNXTIDflag 0x02 /* ID to which token is passed has changed */
/* in the CONFIG register */
#define RESETcfg 0x80 /* put card in reset state */
#define TXENcfg 0x20 /* enable TX */
#define XTOcfg(x) ((x) << 3) /* extended timeout */
/* in SETUP register */
#define PROMISCset 0x10 /* enable RCV_ALL */
#define P1MODE 0x80 /* enable P1-MODE for Backplane */
#define SLOWARB 0x01 /* enable Slow Arbitration for >=5Mbps */
/* COM2002x */
#define SUB_TENTATIVE 0 /* tentative node ID */
#define SUB_NODE 1 /* node ID */
#define SUB_SETUP1 2 /* various options */
#define SUB_TEST 3 /* test/diag register */
/* COM20022 only */
#define SUB_SETUP2 4 /* sundry options */
#define SUB_BUSCTL 5 /* bus control options */
#define SUB_DMACOUNT 6 /* DMA count options */
static inline void com20020_set_subaddress(struct arcnet_local *lp,
int ioaddr, int val)
{
if (val < 4) {
lp->config = (lp->config & ~0x03) | val;
arcnet_outb(lp->config, ioaddr, COM20020_REG_W_CONFIG);
} else {
arcnet_outb(val, ioaddr, COM20020_REG_W_SUBADR);
}
}
#endif /* __COM20020_H */