freebsd-skq/sys/dev/sn/if_sn_pccard.c
Warner Losh fbfb97942e It turns out that the module dependency on pccard is in error. Since
there's not dependencies on pccard symboles, such a dependency is not
necessary.  This means that drivers that have multiple attachments can
not drag bogus devices into the kernel at load time.

We can't (yet) do this with pci and isa.  Drivers written for them
actually do seem to have symbols that depend on these busses'
implementation code.

ndis not touched until other things can be tested.
2004-05-08 06:04:06 +00:00

173 lines
4.4 KiB
C

/*-
* Copyright (c) 1999 M. Warner Losh <imp@village.org>
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
/*
* Modifications for Megahertz X-Jack Ethernet Card (XJ-10BT)
*
* Copyright (c) 1996 by Tatsumi Hosokawa <hosokawa@jp.FreeBSD.org>
* BSD-nomads, Tokyo, Japan.
*/
#include <sys/cdefs.h>
__FBSDID("$FreeBSD$");
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/kernel.h>
#include <sys/socket.h>
#include <sys/module.h>
#include <sys/bus.h>
#include <machine/bus.h>
#include <machine/resource.h>
#include <net/ethernet.h>
#include <net/if.h>
#include <net/if_arp.h>
#include <dev/sn/if_snvar.h>
#include <dev/pccard/pccardvar.h>
#include <dev/pccard/pccarddevs.h>
#include "card_if.h"
static const struct pccard_product sn_pccard_products[] = {
PCMCIA_CARD(DSPSI, XJACK, 0),
PCMCIA_CARD(NEWMEDIA, BASICS, 0),
#if 0
PCMCIA_CARD(SMC, 8020BT, 0),
#endif
{ NULL }
};
static int
sn_pccard_match(device_t dev)
{
const struct pccard_product *pp;
if ((pp = pccard_product_lookup(dev, sn_pccard_products,
sizeof(sn_pccard_products[0]), NULL)) != NULL) {
if (pp->pp_name != NULL)
device_set_desc(dev, pp->pp_name);
return 0;
}
return EIO;
}
static int
sn_pccard_probe(device_t dev)
{
int err;
err = sn_probe(dev, 1);
return (err);
}
static int
sn_pccard_ascii_enaddr(const char *str, u_char *enet)
{
uint8_t digit;
int i;
memset(enet, 0, ETHER_ADDR_LEN);
for (i = 0, digit = 0; i < (ETHER_ADDR_LEN * 2); i++) {
if (str[i] >= '0' && str[i] <= '9')
digit |= str[i] - '0';
else if (str[i] >= 'a' && str[i] <= 'f')
digit |= (str[i] - 'a') + 10;
else if (str[i] >= 'A' && str[i] <= 'F')
digit |= (str[i] - 'A') + 10;
else {
/* Bogus digit!! */
return (0);
}
/* Compensate for ordering of digits. */
if (i & 1) {
enet[i >> 1] = digit;
digit = 0;
} else
digit <<= 4;
}
return (1);
}
static int
sn_pccard_attach(device_t dev)
{
struct sn_softc *sc = device_get_softc(dev);
int i;
u_char sum;
u_char ether_addr[ETHER_ADDR_LEN];
const char *cisstr;
sc->pccard_enaddr = 0;
pccard_get_ether(dev, ether_addr);
for (i = 0, sum = 0; i < ETHER_ADDR_LEN; i++)
sum |= ether_addr[i];
if (sum == 0) {
pccard_get_cis3_str(dev, &cisstr);
if (strlen(cisstr) == ETHER_ADDR_LEN * 2)
sum = sn_pccard_ascii_enaddr(cisstr, ether_addr);
}
if (sum == 0) {
pccard_get_cis4_str(dev, &cisstr);
if (strlen(cisstr) == ETHER_ADDR_LEN * 2)
sum = sn_pccard_ascii_enaddr(cisstr, ether_addr);
}
if (sum) {
sc->pccard_enaddr = 1;
bcopy(ether_addr, sc->arpcom.ac_enaddr, ETHER_ADDR_LEN);
}
return (sn_attach(dev));
}
static device_method_t sn_pccard_methods[] = {
/* Device interface */
DEVMETHOD(device_probe, pccard_compat_probe),
DEVMETHOD(device_attach, pccard_compat_attach),
DEVMETHOD(device_detach, sn_detach),
/* Card interface */
DEVMETHOD(card_compat_match, sn_pccard_match),
DEVMETHOD(card_compat_probe, sn_pccard_probe),
DEVMETHOD(card_compat_attach, sn_pccard_attach),
{ 0, 0 }
};
static driver_t sn_pccard_driver = {
"sn",
sn_pccard_methods,
sizeof(struct sn_softc),
};
extern devclass_t sn_devclass;
DRIVER_MODULE(sn, pccard, sn_pccard_driver, sn_devclass, 0, 0);
MODULE_DEPEND(sn, ether, 1, 1, 1);