freebsd-dev/sys/dev/ep/if_ep_pccard.c

235 lines
6.6 KiB
C

/*-
* Copyright (c) 1994 Herb Peyerl <hpeyerl@novatel.ca>
* 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.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by Herb Peyerl.
* 4. The name of Herb Peyerl may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* 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.
*/
/*
* Pccard support for 3C589 by:
* HAMADA Naoki
* nao@tom-yam.or.jp
*/
#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 <net/if_media.h>
#include <dev/ep/if_epreg.h>
#include <dev/ep/if_epvar.h>
#include <dev/pccard/pccardvar.h>
#include <dev/pccard/pccard_cis.h>
#include "pccarddevs.h"
struct ep_pccard_product
{
struct pccard_product prod;
int chipset;
};
#define EP_CHIP_589 1 /* Classic 3c5x9 chipset */
#define EP_CHIP_574 2 /* Roadrunner */
static const struct ep_pccard_product ep_pccard_products[] = {
{ PCMCIA_CARD(3COM, 3C1), EP_CHIP_589 },
{ PCMCIA_CARD(3COM, 3C562), EP_CHIP_589 },
{ PCMCIA_CARD(3COM, 3C589), EP_CHIP_589 },
{ PCMCIA_CARD(3COM, 3CXEM556), EP_CHIP_589 },
{ PCMCIA_CARD(3COM, 3CXEM556INT), EP_CHIP_589 },
{ PCMCIA_CARD(3COM, 3C574), EP_CHIP_574 },
{ PCMCIA_CARD(3COM, 3CCFEM556BI), EP_CHIP_574 },
{ { NULL } }
};
static const struct ep_pccard_product *
ep_pccard_lookup(device_t dev)
{
return ((const struct ep_pccard_product *)pccard_product_lookup(dev,
(const struct pccard_product *)ep_pccard_products,
sizeof(ep_pccard_products[0]), NULL));
}
static int
ep_pccard_probe(device_t dev)
{
const struct ep_pccard_product *pp;
int error;
uint32_t fcn = PCCARD_FUNCTION_UNSPEC;
/* Make sure we're a network function */
error = pccard_get_function(dev, &fcn);
if (error != 0)
return (error);
if (fcn != PCCARD_FUNCTION_NETWORK)
return (ENXIO);
/* Check to see if we know about this card */
if ((pp = ep_pccard_lookup(dev)) == NULL)
return EIO;
if (pp->prod.pp_name != NULL)
device_set_desc(dev, pp->prod.pp_name);
return 0;
}
static int
ep_pccard_mac(const struct pccard_tuple *tuple, void *argp)
{
uint8_t *enaddr = argp;
int i;
/* Code 0x88 is 3com's special cis node contianing the MAC */
if (tuple->code != 0x88)
return (0);
/* Make sure this is a sane node */
if (tuple->length < ETHER_ADDR_LEN)
return (0);
/* Copy the MAC ADDR and return success */
for (i = 0; i < ETHER_ADDR_LEN; i += 2) {
enaddr[i] = pccard_tuple_read_1(tuple, i + 1);
enaddr[i + 1] = pccard_tuple_read_1(tuple, i);
}
return (1);
}
static int
ep_pccard_attach(device_t dev)
{
struct ep_softc *sc = device_get_softc(dev);
uint16_t result;
int error = 0;
const struct ep_pccard_product *pp;
if ((pp = ep_pccard_lookup(dev)) == NULL)
panic("ep_pccard_attach: can't find product in attach.");
if (pp->chipset == EP_CHIP_589) {
sc->epb.mii_trans = 0;
sc->epb.cmd_off = 0;
} else {
sc->epb.mii_trans = 1;
sc->epb.cmd_off = 2;
}
if ((error = ep_alloc(dev))) {
device_printf(dev, "ep_alloc() failed! (%d)\n", error);
goto bad;
}
/* ROM size = 0, ROM base = 0 */
/* For now, ignore AUTO SELECT feature of 3C589B and later. */
error = ep_get_e(sc, EEPROM_ADDR_CFG, &result);
CSR_WRITE_2(sc, EP_W0_ADDRESS_CFG, result & 0xc000);
/*
* Fake IRQ must be 3 for 3C589 and 3C589B. 3C589D and newer
* ignore this value. 3C589C is unknown, as are the other
* cards supported by this driver, but it appears to never hurt
* and always helps.
*/
SET_IRQ(sc, 3);
CSR_WRITE_2(sc, EP_W0_PRODUCT_ID, sc->epb.prod_id);
if (sc->epb.mii_trans) {
/*
* turn on the MII transciever
*/
GO_WINDOW(sc, 3);
CSR_WRITE_2(sc, EP_W3_OPTIONS, 0x8040);
DELAY(1000);
CSR_WRITE_2(sc, EP_W3_OPTIONS, 0xc040);
CSR_WRITE_2(sc, EP_COMMAND, RX_RESET);
CSR_WRITE_2(sc, EP_COMMAND, TX_RESET);
EP_BUSY_WAIT(sc);
DELAY(1000);
CSR_WRITE_2(sc, EP_W3_OPTIONS, 0x8040);
} else
ep_get_media(sc);
/*
* The 3C562 (a-c revisions) stores the MAC in the CIS in a
* way that's unique to 3com. If we have one of these cards,
* scan the CIS for that MAC address, and use it if we find
* it. The NetBSD driver says that the ROADRUNNER chips also
* do this, which may be true, but none of the cards that I
* have include this TUPLE. Always prefer the MAC addr in the
* CIS tuple to the one returned by the card, as it appears that
* only those cards that need it have this special tuple.
*/
if (pccard_cis_scan(dev, ep_pccard_mac, sc->eaddr))
sc->stat |= F_ENADDR_SKIP;
if ((error = ep_attach(sc))) {
device_printf(dev, "ep_attach() failed! (%d)\n", error);
goto bad;
}
if ((error = bus_setup_intr(dev, sc->irq, INTR_TYPE_NET | INTR_MPSAFE,
ep_intr, sc, &sc->ep_intrhand))) {
device_printf(dev, "bus_setup_intr() failed! (%d)\n", error);
goto bad;
}
return (0);
bad:
ep_free(dev);
return (error);
}
static device_method_t ep_pccard_methods[] = {
/* Device interface */
DEVMETHOD(device_probe, ep_pccard_probe),
DEVMETHOD(device_attach, ep_pccard_attach),
DEVMETHOD(device_detach, ep_detach),
{0, 0}
};
static driver_t ep_pccard_driver = {
"ep",
ep_pccard_methods,
sizeof(struct ep_softc),
};
extern devclass_t ep_devclass;
DRIVER_MODULE(ep, pccard, ep_pccard_driver, ep_devclass, 0, 0);