NetBSD/sys/dev/pci/if_ex_pci.c

310 lines
9.0 KiB
C

/* $NetBSD: if_ex_pci.c,v 1.20 2002/02/07 01:32:19 christos Exp $ */
/*-
* Copyright (c) 1998 The NetBSD Foundation, Inc.
* All rights reserved.
*
* This code is derived from software contributed to The NetBSD Foundation
* by Frank van der Linden; Jason R. Thorpe of the Numerical Aerospace
* Simulation Facility, NASA Ames Research Center.
*
* 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 the NetBSD
* Foundation, Inc. and its contributors.
* 4. Neither the name of The NetBSD Foundation nor the names of its
* contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* 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.
*/
#include <sys/cdefs.h>
__KERNEL_RCSID(0, "$NetBSD: if_ex_pci.c,v 1.20 2002/02/07 01:32:19 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/syslog.h>
#include <sys/select.h>
#include <sys/device.h>
#include <net/if.h>
#include <net/if_dl.h>
#include <net/if_ether.h>
#include <net/if_media.h>
#include <machine/cpu.h>
#include <machine/bus.h>
#include <machine/intr.h>
#include <dev/mii/miivar.h>
#include <dev/mii/mii.h>
#include <dev/ic/elink3var.h>
#include <dev/ic/elink3reg.h>
#include <dev/ic/elinkxlreg.h>
#include <dev/ic/elinkxlvar.h>
#include <dev/pci/pcivar.h>
#include <dev/pci/pcireg.h>
#include <dev/pci/pcidevs.h>
struct ex_pci_softc {
struct ex_softc sc_ex;
/* PCI function status space. 556,556B requests it. */
bus_space_tag_t sc_funct;
bus_space_handle_t sc_funch;
};
/*
* PCI constants.
* XXX These should be in a common file!
*/
#define PCI_CONN 0x48 /* Connector type */
#define PCI_CBIO 0x10 /* Configuration Base IO Address */
#define PCI_POWERCTL 0xe0
#define PCI_FUNCMEM 0x18
#define PCI_INTR 4
#define PCI_INTRACK 0x00008000
int ex_pci_match __P((struct device *, struct cfdata *, void *));
void ex_pci_attach __P((struct device *, struct device *, void *));
void ex_pci_intr_ack __P((struct ex_softc *));
struct cfattach ex_pci_ca = {
sizeof(struct ex_pci_softc), ex_pci_match, ex_pci_attach
};
const struct ex_pci_product {
u_int32_t epp_prodid; /* PCI product ID */
int epp_flags; /* initial softc flags */
const char *epp_name; /* device name */
} ex_pci_products[] = {
{ PCI_PRODUCT_3COM_3C900TPO, 0,
"3c900-TPO Ethernet" },
{ PCI_PRODUCT_3COM_3C900COMBO, 0,
"3c900-COMBO Ethernet" },
{ PCI_PRODUCT_3COM_3C905TX, EX_CONF_MII,
"3c905-TX 10/100 Ethernet" },
{ PCI_PRODUCT_3COM_3C905T4, EX_CONF_MII,
"3c905-T4 10/100 Ethernet" },
{ PCI_PRODUCT_3COM_3C900BTPO, EX_CONF_90XB,
"3c900B-TPO Ethernet" },
{ PCI_PRODUCT_3COM_3C900BCOMBO, EX_CONF_90XB,
"3c900B-COMBO Ethernet" },
{ PCI_PRODUCT_3COM_3C900BTPC, EX_CONF_90XB,
"3c900B-TPC Ethernet" },
{ PCI_PRODUCT_3COM_3C905BTX, EX_CONF_90XB|EX_CONF_MII|EX_CONF_INTPHY,
"3c905B-TX 10/100 Ethernet" },
{ PCI_PRODUCT_3COM_3C905BT4, EX_CONF_90XB|EX_CONF_MII,
"3c905B-T4 10/100 Ethernet" },
{ PCI_PRODUCT_3COM_3C905BCOMBO, EX_CONF_90XB/*|EX_CONF_MII|EX_CONF_INTPHY*/,
"3c905B-COMBO 10/100 Ethernet" },
{ PCI_PRODUCT_3COM_3C905BFX, EX_CONF_90XB,
"3c905B-FX 10/100 Ethernet" },
/* XXX Internal PHY? */
{ PCI_PRODUCT_3COM_3C980SRV, EX_CONF_90XB,
"3c980 Server Adapter 10/100 Ethernet" },
{ PCI_PRODUCT_3COM_3C980CTXM, EX_CONF_90XB|EX_CONF_MII,
"3c980C-TXM 10/100 Ethernet" },
{ PCI_PRODUCT_3COM_3C905CTX, EX_CONF_90XB|EX_CONF_MII,
"3c905C-TX 10/100 Ethernet with mngmt" },
{ PCI_PRODUCT_3COM_3C450TX, EX_CONF_90XB,
"3c450-TX 10/100 Ethernet" },
{ PCI_PRODUCT_3COM_3CSOHO100TX, EX_CONF_90XB,
"3cSOHO100-TX 10/100 Ethernet" },
{ PCI_PRODUCT_3COM_3C555,
EX_CONF_90XB | EX_CONF_MII | EX_CONF_EEPROM_OFF |
EX_CONF_EEPROM_8BIT,
"3c555 MiniPCI 10/100 Ethernet" },
{ PCI_PRODUCT_3COM_3C556,
EX_CONF_90XB | EX_CONF_MII | EX_CONF_EEPROM_OFF |
EX_CONF_PCI_FUNCREG | EX_CONF_RESETHACK | EX_CONF_INV_LED_POLARITY |
EX_CONF_PHY_POWER | EX_CONF_EEPROM_8BIT,
"3c556 MiniPCI 10/100 Ethernet" },
{ PCI_PRODUCT_3COM_3C556B,
EX_CONF_90XB | EX_CONF_MII | EX_CONF_EEPROM_OFF |
EX_CONF_PCI_FUNCREG | EX_CONF_RESETHACK | EX_CONF_INV_LED_POLARITY |
EX_CONF_PHY_POWER,
"3c556B MiniPCI 10/100 Ethernet" },
{ 0, 0,
NULL },
};
const struct ex_pci_product *ex_pci_lookup
__P((const struct pci_attach_args *));
const struct ex_pci_product *
ex_pci_lookup(pa)
const struct pci_attach_args *pa;
{
const struct ex_pci_product *epp;
if (PCI_VENDOR(pa->pa_id) != PCI_VENDOR_3COM)
return (NULL);
for (epp = ex_pci_products; epp->epp_name != NULL; epp++)
if (PCI_PRODUCT(pa->pa_id) == epp->epp_prodid)
return (epp);
return (NULL);
}
int
ex_pci_match(parent, match, aux)
struct device *parent;
struct cfdata *match;
void *aux;
{
struct pci_attach_args *pa = (struct pci_attach_args *) aux;
if (ex_pci_lookup(pa) != NULL)
return (2); /* beat ep_pci */
return (0);
}
void
ex_pci_attach(parent, self, aux)
struct device *parent, *self;
void *aux;
{
struct ex_softc *sc = (void *)self;
struct ex_pci_softc *psc = (void *)self;
struct pci_attach_args *pa = aux;
pci_chipset_tag_t pc = pa->pa_pc;
pci_intr_handle_t ih;
const struct ex_pci_product *epp;
const char *intrstr = NULL;
int rev, pmreg;
pcireg_t reg;
if (pci_mapreg_map(pa, PCI_CBIO, PCI_MAPREG_TYPE_IO, 0,
&sc->sc_iot, &sc->sc_ioh, NULL, NULL)) {
printf(": can't map i/o space\n");
return;
}
epp = ex_pci_lookup(pa);
if (epp == NULL) {
printf("\n");
panic("ex_pci_attach: impossible");
}
rev = PCI_REVISION(pci_conf_read(pc, pa->pa_tag, PCI_CLASS_REG));
printf(": 3Com %s (rev. 0x%x)\n", epp->epp_name, rev);
sc->enable = NULL;
sc->disable = NULL;
sc->enabled = 1;
sc->sc_dmat = pa->pa_dmat;
sc->ex_bustype = EX_BUS_PCI;
sc->ex_conf = epp->epp_flags;
/* Enable the card. */
pci_conf_write(pc, pa->pa_tag, PCI_COMMAND_STATUS_REG,
pci_conf_read(pc, pa->pa_tag, PCI_COMMAND_STATUS_REG) |
PCI_COMMAND_MASTER_ENABLE);
if (sc->ex_conf & EX_CONF_PCI_FUNCREG) {
/* Map PCI function status window. */
if (pci_mapreg_map(pa, PCI_FUNCMEM, PCI_MAPREG_TYPE_MEM, 0,
&psc->sc_funct, &psc->sc_funch, NULL, NULL)) {
printf("%s: unable to map function status window\n",
sc->sc_dev.dv_xname);
return;
}
sc->intr_ack = ex_pci_intr_ack;
}
/* Get it out of power save mode if needed (BIOS bugs) */
if (pci_get_capability(pc, pa->pa_tag, PCI_CAP_PWRMGMT, &pmreg, 0)) {
reg = pci_conf_read(pc, pa->pa_tag, pmreg + 4) & 0x3;
if (reg == 3) {
/*
* The card has lost all configuration data in
* this state, so punt.
*/
printf("%s: unable to wake up from power state D3\n",
sc->sc_dev.dv_xname);
return;
}
if (reg != 0) {
printf("%s: waking up from power state D%d\n",
sc->sc_dev.dv_xname, reg);
pci_conf_write(pc, pa->pa_tag, pmreg + 4, 0);
}
}
/* Map and establish the interrupt. */
if (pci_intr_map(pa, &ih)) {
printf("%s: couldn't map interrupt\n", sc->sc_dev.dv_xname);
return;
}
intrstr = pci_intr_string(pc, ih);
sc->sc_ih = pci_intr_establish(pc, ih, IPL_NET, ex_intr, sc);
if (sc->sc_ih == NULL) {
printf("%s: couldn't establish interrupt",
sc->sc_dev.dv_xname);
if (intrstr != NULL)
printf(" at %s", intrstr);
printf("\n");
return;
}
printf("%s: interrupting at %s\n", sc->sc_dev.dv_xname, intrstr);
ex_config(sc);
if (sc->ex_conf & EX_CONF_PCI_FUNCREG)
bus_space_write_4(psc->sc_funct, psc->sc_funch, PCI_INTR,
PCI_INTRACK);
}
void
ex_pci_intr_ack(sc)
struct ex_softc *sc;
{
struct ex_pci_softc *psc = (struct ex_pci_softc *)sc;
bus_space_write_4(psc->sc_funct, psc->sc_funch, PCI_INTR,
PCI_INTRACK);
}