mirror of
https://github.com/FEX-Emu/linux.git
synced 2025-01-10 03:20:49 +00:00
84286f191a
This patch replaces all magic numbers in the driver with proper named macros. For the case of XTOcfg and STARTIOcmd it introduces the new macros. Signed-off-by: Michael Grzeschik <m.grzeschik@pengutronix.de>
119 lines
3.4 KiB
C
119 lines
3.4 KiB
C
/*
|
|
* 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
|
|
|
|
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 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];
|
|
|
|
unsigned int flags;
|
|
};
|
|
|
|
struct com20020_priv {
|
|
struct com20020_pci_card_info *ci;
|
|
struct list_head list_dev;
|
|
};
|
|
|
|
struct com20020_dev {
|
|
struct list_head list;
|
|
struct net_device *dev;
|
|
|
|
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 */
|