drivers/net/tokenring/madgemc.c



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/*
 *  madgemc.c: Driver for the Madge Smart 16/4 MC16 MCA token ring card.
 *
 *  Written 2000 by Adam Fritzler
 *
 *  This software may be used and distributed according to the terms
 *  of the GNU General Public License, incorporated herein by reference.
 *
 *  This driver module supports the following cards:
 *      - Madge Smart 16/4 Ringnode MC16
 *	- Madge Smart 16/4 Ringnode MC32 (??)
 *
 *  Maintainer(s):
 *    AF	Adam Fritzler		mid@auk.cx
 *
 *  Modification History:
 *	16-Jan-00	AF	Created
 *
 */
static const char version[] = "madgemc.c: v0.91 23/01/2000 by Adam Fritzler\n";

#include <linux/module.h>
#include <linux/mca.h>
#include <linux/kernel.h>
#include <linux/errno.h>
#include <linux/pci.h>
#include <linux/init.h>
#include <linux/netdevice.h>
#include <linux/trdevice.h>

#include <asm/system.h>
#include <asm/io.h>
#include <asm/irq.h>

#include "tms380tr.h"
#include "madgemc.h"            /* Madge-specific constants */

#define MADGEMC_IO_EXTENT 32
#define MADGEMC_SIF_OFFSET 0x08

struct card_info {
	/*
	 * These are read from the BIA ROM.
	 */
	unsigned int manid;
	unsigned int cardtype;
	unsigned int cardrev;
	unsigned int ramsize;
	
	/*
	 * These are read from the MCA POS registers.  
	 */
	unsigned int burstmode:2;
	unsigned int fairness:1; /* 0 = Fair, 1 = Unfair */
	unsigned int arblevel:4;
	unsigned int ringspeed:2; /* 0 = 4mb, 1 = 16, 2 = Auto/none */
	unsigned int cabletype:1; /* 0 = RJ45, 1 = DB9 */
};

static int madgemc_open(struct net_device *dev);
static int madgemc_close(struct net_device *dev);
static int madgemc_chipset_init(struct net_device *dev);
static void madgemc_read_rom(struct net_device *dev, struct card_info *card);
static unsigned short madgemc_setnselout_pins(struct net_device *dev);
static void madgemc_setcabletype(struct net_device *dev, int type);

static int madgemc_mcaproc(char *buf, int slot, void *d);

static void madgemc_setregpage(struct net_device *dev, int page);
static void madgemc_setsifsel(struct net_device *dev, int val);
static void madgemc_setint(struct net_device *dev, int val);

static irqreturn_t madgemc_interrupt(int irq, void *dev_id, struct pt_regs *regs);

/*
 * These work around paging, however they don't guarentee you're on the
 * right page.
 */