NetBSD-5.0.2/sys/dev/mca/if_ep_mca.c
/* $NetBSD: if_ep_mca.c,v 1.21 2008/08/27 05:33:47 christos Exp $ */
/*-
* Copyright (c) 2001 The NetBSD Foundation, Inc.
* All rights reserved.
*
* This code is derived from software contributed to The NetBSD Foundation
* by Jaromir Dolecek.
*
* 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 NETBSD FOUNDATION, INC. 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 FOUNDATION 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.
*/
/*
* Copyright (c) 1997 Jonathan Stone <jonathan@NetBSD.org>
* Copyright (c) 1994 Herb Peyerl <hpeyerl@beer.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.
* 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.
*/
/*
* Driver for 3Com 3c529 cards.
*
* If you encouter sucky performance, try kernel without DEBUG/DIAGNOSTIC.
* This helped on my test machine to change the performance of the card
* from like 5KB/s to like 800 KB/s.
*/
#include <sys/cdefs.h>
__KERNEL_RCSID(0, "$NetBSD: if_ep_mca.c,v 1.21 2008/08/27 05:33:47 christos Exp $");
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/mbuf.h>
#include <sys/socket.h>
#include <sys/ioctl.h>
#include <sys/errno.h>
#include <sys/device.h>
#include <net/if.h>
#include <net/if_ether.h>
#include <net/if_media.h>
#include <sys/bus.h>
#include <dev/mii/miivar.h>
#include <dev/ic/elink3var.h>
#include <dev/ic/elink3reg.h>
#include <dev/mca/mcavar.h>
#include <dev/mca/mcadevs.h>
/*
* MCA constants.
*/
#define MCA_CBIO 0x200 /* Configuration Base IO Address */
#define MCA_IOSZ 0x10 /* I/O space size */
int ep_mca_match(device_t , cfdata_t , void *);
void ep_mca_attach(device_t , device_t , void *);
CFATTACH_DECL_NEW(ep_mca, sizeof(struct ep_softc),
ep_mca_match, ep_mca_attach, NULL, NULL);
const struct ep_mca_product {
u_int32_t epp_prodid; /* MCA product ID */
const char *epp_name; /* device name */
} ep_mca_products[] = {
{ MCA_PRODUCT_3C529, "3C529 Ethernet Adapter" },
{ MCA_PRODUCT_3C529_TP, "3c529-TP Ethernet Adapter" },
{ MCA_PRODUCT_3C529_TM, "3c529 Ethernet Adapter (test mode)" },
{ MCA_PRODUCT_3C529_2T, "3c529 Ethernet Adapter (10base2/T)" },
{ MCA_PRODUCT_3C529_T, "3c529 Ethernet Adapter (10baseT)" },
{ 0, NULL },
};
static const struct ep_mca_product *ep_mca_lookup
(const struct mca_attach_args *);
static const struct ep_mca_product *
ep_mca_lookup(ma)
const struct mca_attach_args *ma;
{
const struct ep_mca_product *epp;
for (epp = ep_mca_products; epp->epp_name != NULL; epp++)
if (ma->ma_id == epp->epp_prodid)
return (epp);
return (NULL);
}
int
ep_mca_match(device_t parent, cfdata_t match, void *aux)
{
struct mca_attach_args *ma = (struct mca_attach_args *) aux;
if (ep_mca_lookup(ma) != NULL)
return (1);
return (0);
}
void
ep_mca_attach(device_t parent, device_t self, void *aux)
{
struct ep_softc *sc = device_private(self);
struct mca_attach_args *ma = aux;
bus_space_handle_t ioh;
int pos4, pos5, iobase, irq, media;
const struct ep_mca_product *epp;
pos4 = mca_conf_read(ma->ma_mc, ma->ma_slot, 4);
pos5 = mca_conf_read(ma->ma_mc, ma->ma_slot, 5);
/*
* POS register 2: (adf pos0)
* 7 6 5 4 3 2 1 0
* \__ enable: 0=adapter disabled, 1=adapter enabled
*
* POS register 3: (adf pos1)
*
* 7 6 5 4 3 2 1 0
* \________/
* \_______ Boot ROM Address Range: 0=disabled
* X=0xc2000-0xc3fff + (x * 0x2000)
*
* POS register 4: (adf pos2)
*
* 7 6 5 4 3 2 1 0
* \________/ \_/
* \ \__ Transceiver Type: 00=on-board (RJ45), 01=ext(AUI)
* \______ I/O Address Range: 0x200-0x20f + ((x>>2) * 0x400)
*
* POS register 5: (adf pos3)
*
* 7 6 5 4 3 2 1 0
* \____/
* \__ Interrupt level
*/
iobase = MCA_CBIO + (((pos4 & 0xfc) >> 2) * 0x400);
irq = (pos5 & 0x0f);
sc->sc_dev = self;
/* map the pio registers */
if (bus_space_map(ma->ma_iot, iobase, MCA_IOSZ, 0, &ioh)) {
aprint_error_dev(sc->sc_dev, "unable to map i/o space\n");
return;
}
sc->sc_iot = ma->ma_iot;
sc->sc_ioh = ioh;
epp = ep_mca_lookup(ma);
if (epp == NULL) {
printf("\n");
panic("ep_mca_attach: impossible");
}
printf(" slot %d irq %d: 3Com %s\n", ma->ma_slot + 1,
irq, epp->epp_name);
sc->enable = NULL;
sc->disable = NULL;
sc->enabled = 1;
sc->bustype = ELINK_BUS_MCA;
sc->ep_flags = 0;
if (epconfig(sc, ELINK_CHIPSET_3C509, NULL))
return;
/* Map and establish the interrupt. */
sc->sc_ih = mca_intr_establish(ma->ma_mc, irq, IPL_NET, epintr, sc);
if (sc->sc_ih == NULL) {
aprint_error_dev(sc->sc_dev, "couldn't establish interrupt handler\n");
return;
}
/*
* Set default media to be same as the one selected in POS.
*/
switch (pos4 & 0x03) {
case 0x00:
/* on-board RJ-45 */
media = IFM_10_T;
break;
case 0x01:
/* external AUI */
media = IFM_10_5;
break;
case 0x02:
/* undefined, should never be set */
media = IFM_NONE;
break;
case 0x03:
/* BNC */
media = IFM_10_2;
break;
default:
aprint_error_dev(sc->sc_dev, " cannot determine media\n");
return;
}
ifmedia_set(&sc->sc_mii.mii_media, IFM_ETHER|media);
}