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/* $OpenBSD: if_hme_pci.c,v 1.6 2002/03/14 01:26:58 millert Exp $ */
/* $NetBSD: if_hme_pci.c,v 1.3 2000/12/28 22:59:13 sommerfeld Exp $ */
/*
* Copyright (c) 2000 Matthew R. Green
* 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. The name of the author 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.
*/
/*
* PCI front-end device driver for the HME ethernet device.
*/
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/syslog.h>
#include <sys/device.h>
#include <sys/malloc.h>
#include <sys/socket.h>
#include <net/if.h>
#include <net/if_dl.h>
#include <net/if_media.h>
#ifdef INET
#include <netinet/in.h>
#include <netinet/in_systm.h>
#include <netinet/in_var.h>
#include <netinet/ip.h>
#include <netinet/if_ether.h>
#endif
#include <dev/mii/mii.h>
#include <dev/mii/miivar.h>
#ifdef __sparc64__
#include <machine/autoconf.h>
#include <dev/ofw/openfirm.h>
#endif
#include <machine/cpu.h>
#include <dev/pci/pcivar.h>
#include <dev/pci/pcireg.h>
#include <dev/pci/pcidevs.h>
#include <dev/ic/hmevar.h>
struct hme_pci_softc {
struct hme_softc hsc_hme; /* HME device */
bus_space_tag_t hsc_memt;
bus_space_handle_t hsc_memh;
void *hsc_ih;
};
int hmematch_pci(struct device *, void *, void *);
void hmeattach_pci(struct device *, struct device *, void *);
struct cfattach hme_pci_ca = {
sizeof(struct hme_pci_softc), hmematch_pci, hmeattach_pci
};
int
hmematch_pci(parent, vcf, aux)
struct device *parent;
void *vcf;
void *aux;
{
struct pci_attach_args *pa = aux;
if (PCI_VENDOR(pa->pa_id) == PCI_VENDOR_SUN &&
PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_SUN_HME)
return (1);
return (0);
}
void
hmeattach_pci(parent, self, aux)
struct device *parent, *self;
void *aux;
{
struct pci_attach_args *pa = aux;
struct hme_pci_softc *hsc = (void *)self;
struct hme_softc *sc = &hsc->hsc_hme;
pci_intr_handle_t intrhandle;
/* XXX the following declarations should be elsewhere */
extern void myetheraddr(u_char *);
pcireg_t csr;
const char *intrstr;
int type;
/*
* enable io/memory-space accesses. this is kinda of gross; but
* the hme comes up with neither IO space enabled, or memory space.
*/
if (pa->pa_memt)
pa->pa_flags |= PCI_FLAGS_MEM_ENABLED;
if (pa->pa_iot)
pa->pa_flags |= PCI_FLAGS_IO_ENABLED;
csr = pci_conf_read(pa->pa_pc, pa->pa_tag, PCI_COMMAND_STATUS_REG);
if (pa->pa_memt) {
type = PCI_MAPREG_TYPE_MEM;
csr |= PCI_COMMAND_MEM_ENABLE;
sc->sc_bustag = pa->pa_memt;
} else {
type = PCI_MAPREG_TYPE_IO;
csr |= PCI_COMMAND_IO_ENABLE;
sc->sc_bustag = pa->pa_iot;
}
pci_conf_write(pa->pa_pc, pa->pa_tag, PCI_COMMAND_STATUS_REG,
csr | PCI_COMMAND_MEM_ENABLE);
sc->sc_dmatag = pa->pa_dmat;
sc->sc_pci = 1; /* XXXXX should all be done in bus_dma. */
/*
* Map five register banks:
*
* bank 0: HME SEB registers: +0x0000
* bank 1: HME ETX registers: +0x2000
* bank 2: HME ERX registers: +0x4000
* bank 3: HME MAC registers: +0x6000
* bank 4: HME MIF registers: +0x7000
*
*/
#define PCI_HME_BASEADDR 0x10
if (pci_mapreg_map(pa, PCI_HME_BASEADDR, type, 0,
&hsc->hsc_memt, &hsc->hsc_memh, NULL, NULL, 0) != 0)
{
printf(": could not map hme registers\n");
return;
}
sc->sc_seb = hsc->hsc_memh;
sc->sc_etx = hsc->hsc_memh + 0x2000;
sc->sc_erx = hsc->hsc_memh + 0x4000;
sc->sc_mac = hsc->hsc_memh + 0x6000;
sc->sc_mif = hsc->hsc_memh + 0x7000;
#ifdef __sparc__
if (OF_getprop(PCITAG_NODE(pa->pa_tag), "local-mac-address",
sc->sc_enaddr, ETHER_ADDR_LEN) <= 0)
myetheraddr(sc->sc_enaddr);
#endif
#ifdef __powerpc__
pci_ether_hw_addr(pa->pa_pc, sc->sc_enaddr);
#endif
sc->sc_burst = 16; /* XXX */
/*
* call the main configure
*/
hme_config(sc);
if (pci_intr_map(pa, &intrhandle) != 0) {
printf("%s: couldn't map interrupt\n",
sc->sc_dev.dv_xname);
return; /* bus_unmap ? */
}
intrstr = pci_intr_string(pa->pa_pc, intrhandle);
hsc->hsc_ih = pci_intr_establish(pa->pa_pc, intrhandle, IPL_NET,
hme_intr, sc, self->dv_xname);
if (hsc->hsc_ih != NULL) {
printf("%s: using %s for interrupt\n",
sc->sc_dev.dv_xname,
intrstr ? intrstr : "unknown interrupt");
} else {
printf("%s: couldn't establish interrupt",
sc->sc_dev.dv_xname);
if (intrstr != NULL)
printf(" at %s", intrstr);
printf("\n");
return; /* bus_unmap ? */
}
}
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