freebsd-dev/sys/dev/ex/if_ex_pccard.c

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/*-
* Copyright (c) 2000 Mitsuru IWASAKI
* 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 AND CONTRIBUTORS ``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 OR CONTRIBUTORS 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.
*
*/
#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 <sys/rman.h>
#include <net/if.h>
#include <net/if_arp.h>
#include <net/if_media.h>
#include <dev/ex/if_exreg.h>
#include <dev/ex/if_exvar.h>
#include <dev/pccard/pccardvar.h>
#include <dev/pccard/pccard_cis.h>
#include "pccarddevs.h"
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static const struct pccard_product ex_pccard_products[] = {
PCMCIA_CARD(OLICOM, OC2220),
PCMCIA_CARD(OLICOM, OC2231),
PCMCIA_CARD(OLICOM, OC2232),
PCMCIA_CARD(INTEL, ETHEREXPPRO),
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{ NULL }
};
/* Bus Front End Functions */
static int ex_pccard_probe(device_t);
static int ex_pccard_attach(device_t);
static int
ex_pccard_enet_ok(u_char *enaddr)
{
int i;
u_char sum;
if (enaddr[0] == 0xff)
return (0);
for (i = 0, sum = 0; i < ETHER_ADDR_LEN; i++)
sum |= enaddr[i];
return (sum != 0);
}
static int
ex_pccard_silicom_cb(const struct pccard_tuple *tuple, void *arg)
{
u_char *enaddr = arg;
int i;
if (tuple->code != CISTPL_FUNCE)
return (0);
if (tuple->length != 15)
return (0);
if (pccard_tuple_read_1(tuple, 6) != 6)
return (0);
for (i = 0; i < 6; i++)
enaddr[i] = pccard_tuple_read_1(tuple, 7 + i);
return (1);
}
static void
ex_pccard_get_silicom_mac(device_t dev, u_char *ether_addr)
{
pccard_cis_scan(dev, ex_pccard_silicom_cb, ether_addr);
}
static int
ex_pccard_probe(device_t dev)
{
const struct pccard_product *pp;
int error, i, j;
uint32_t fcn = PCCARD_FUNCTION_UNSPEC;
if ((pp = pccard_product_lookup(dev, ex_pccard_products,
sizeof(ex_pccard_products[0]), NULL)) == NULL)
return (EIO);
if (pp->pp_name != NULL)
device_set_desc(dev, pp->pp_name);
/*
* Olicom 22.8k and 33.6k modems need to activate the right
* CFE. The odd formula below replicates the sequence of cfes
* that have multiple resources:
* 9, 11, 13, 15, 0 + 9
* 25, 27, 29, 31, 16 + 9
* 41, 43, 45, 47, 32 + 9
* 57, 59, 61, 63 48 + 9
* (entries 8, 24, 40 and 56 are single resoruce cfes)
* Fortunately the code that enables and disables the multiple
* fuctions of the card won't mess with the lower bit for cards
* that aren't stanards conforming MFC cards (which these olicom
* cards aren't).
*
* Note: These cards still don't get interrupts for reasons
* unknown, even when the right cfe is selected. There's likely
* something in the CCR that needs to be manually tweaked, but
* the COR bits seem to all be used. Bit 0 and 3 are always set
* and the other bits select the config to use. Maybe one of those
* two bits needs to be cleared, or there's something else in the
* CCR that needs tweaking. The pattern of resources suggests
* bit 0 turns on the ethernet, however...
*/
if (pp->pp_vendor == PCMCIA_VENDOR_OLICOM &&
(pp->pp_product == PCMCIA_PRODUCT_OLICOM_OC2231 ||
pp->pp_product == PCMCIA_PRODUCT_OLICOM_OC2232)) {
if (pccard_select_cfe(dev, 1) == 0)
goto good;
for (i = 0; i < 4; i++) {
for (j = 0; j < 4; j++) {
printf("Trying %d %d\n", i, j);
if (pccard_select_cfe(dev,
(i << 4) + (j << 1) + 9) == 0)
goto good;
}
}
/* Can't activate the net entries, punt */
return (EIO);
}
/*
* All other cards supported by this driver don't need specail
* treatment, so just filter based on the type of card. The
* special treatment ones are setup to 'fail safe' to a modem so
* this check would effectively filter them out as well.
*/
error = pccard_get_function(dev, &fcn);
if (error != 0)
return (error);
if (fcn != PCCARD_FUNCTION_NETWORK)
return (EIO);
good:;
return (0);
}
static int
ex_pccard_attach(device_t dev)
{
struct ex_softc * sc = device_get_softc(dev);
int error = 0;
u_char ether_addr[ETHER_ADDR_LEN];
sc->dev = dev;
sc->ioport_rid = 0;
sc->irq_rid = 0;
if ((error = ex_alloc_resources(dev)) != 0) {
device_printf(dev, "ex_alloc_resources() failed!\n");
goto bad;
}
/*
* Fill in several fields of the softc structure:
* - Hardware Ethernet address.
* - IRQ number.
*/
sc->irq_no = rman_get_start(sc->irq);
/* Try to get the ethernet address from the chip, then the CIS */
ex_get_address(sc, ether_addr);
if (!ex_pccard_enet_ok(ether_addr))
pccard_get_ether(dev, ether_addr);
if (!ex_pccard_enet_ok(ether_addr))
ex_pccard_get_silicom_mac(dev, ether_addr);
if (!ex_pccard_enet_ok(ether_addr)) {
device_printf(dev, "No NIC address found.\n");
error = ENXIO;
goto bad;
}
bcopy(ether_addr, sc->enaddr, ETHER_ADDR_LEN);
if ((error = ex_attach(dev)) != 0) {
device_printf(dev, "ex_attach() failed!\n");
goto bad;
}
return(0);
bad:
ex_release_resources(dev);
return (error);
}
static device_method_t ex_pccard_methods[] = {
/* Device interface */
DEVMETHOD(device_probe, ex_pccard_probe),
DEVMETHOD(device_attach, ex_pccard_attach),
DEVMETHOD(device_detach, ex_detach),
{ 0, 0 }
};
static driver_t ex_pccard_driver = {
"ex",
ex_pccard_methods,
sizeof(struct ex_softc),
};
DRIVER_MODULE(ex, pccard, ex_pccard_driver, ex_devclass, 0, 0);
MODULE_DEPEND(ex, pccard, 1, 1, 1);