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/* $OpenBSD: qla_sbus.c,v 1.2 2014/07/12 18:48:52 tedu Exp $ */
/*
* Copyright (c) 2014 Mark Kettenis
*
* Permission to use, copy, modify, and distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
#include <sys/param.h>
#include <sys/device.h>
#include <sys/malloc.h>
#include <sys/systm.h>
#include <machine/bus.h>
#include <machine/intr.h>
#include <machine/autoconf.h>
#include <dev/sbus/sbusvar.h>
#include <dev/pci/pcireg.h>
#include <dev/pci/pcivar.h>
#include <dev/pci/pcidevs.h>
#include <scsi/scsi_all.h>
#include <scsi/scsiconf.h>
#include <dev/ic/qlareg.h>
#include <dev/ic/qlavar.h>
#define QLA_SBUS_REG_OFFSET 0x100
#define QLA_SBUS_REG_SIZE 0x300
int qla_sbus_match(struct device *, void *, void *);
void qla_sbus_attach(struct device *, struct device *, void *);
struct cfattach qla_sbus_ca = {
sizeof(struct qla_softc),
qla_sbus_match,
qla_sbus_attach
};
int
qla_sbus_match(struct device *parent, void *cf, void *aux)
{
struct sbus_attach_args *sa = aux;
if (strcmp("SUNW,qlc", sa->sa_name) == 0 ||
strcmp("QLGC,qla", sa->sa_name) == 0)
return 2;
return 0;
}
void
qla_sbus_attach(struct device *parent, struct device *self, void *aux)
{
struct qla_softc *sc = (void *)self;
struct sbus_attach_args *sa = aux;
struct sparc_bus_space_tag *iot;
bus_space_handle_t ioh;
pcireg_t id, class;
char devinfo[256];
if (sa->sa_nintr < 1) {
printf(": no interrupt\n");
return;
}
if (sa->sa_nreg < 1) {
printf(": no registers\n");
return;
}
/*
* These cards have a standard PCI chips that sit behind an
* FPGA with some bridging logic. Since the PCI bus is
* little-endian, we need a little-endian bus tag. So we
* build one here.
*/
iot = malloc(sizeof(*iot), M_DEVBUF, M_NOWAIT);
if (iot == NULL) {
printf(": can't allocate bus tag\n");
return;
}
*iot = *sa->sa_bustag;
iot->asi = ASI_PRIMARY_LITTLE;
if (sbus_bus_map(iot, sa->sa_slot, sa->sa_offset,
sa->sa_size, 0, 0, &ioh) != 0) {
printf(": can't map registers\n");
goto free;
}
/*
* PCI config space is mapped at the start of the SBus
* register space. We use it to identify the ISP chip.
*/
id = bus_space_read_4(iot, ioh, PCI_ID_REG);
class = bus_space_read_4(iot, ioh, PCI_CLASS_REG);
pci_devinfo(id, class, 0, devinfo, sizeof(devinfo));
printf(": %s\n", devinfo);
switch (PCI_PRODUCT(id)) {
case PCI_PRODUCT_QLOGIC_ISP2200:
sc->sc_isp_gen = QLA_GEN_ISP2200;
sc->sc_isp_type = QLA_ISP2200;
break;
case PCI_PRODUCT_QLOGIC_ISP2300:
sc->sc_isp_gen = QLA_GEN_ISP23XX;
sc->sc_isp_type = QLA_ISP2300;
break;
case PCI_PRODUCT_QLOGIC_ISP2312:
sc->sc_isp_gen = QLA_GEN_ISP23XX;
sc->sc_isp_type = QLA_ISP2312;
break;
default:
printf("%s: unsupported ISP chip\n", DEVNAME(sc));
goto unmap;
}
if (bus_intr_establish(sa->sa_bustag, sa->sa_pri, IPL_BIO, 0,
qla_intr, sc, sc->sc_dev.dv_xname) == NULL) {
printf("%s: can't establish interrupt\n", DEVNAME(sc));
goto unmap;
}
if (bus_space_subregion(iot, ioh, QLA_SBUS_REG_OFFSET,
QLA_SBUS_REG_SIZE, &sc->sc_ioh) != 0) {
printf("%s: can't submap registers\n", DEVNAME(sc));
goto unmap;
}
sc->sc_iot = iot;
sc->sc_ios = QLA_SBUS_REG_SIZE;
sc->sc_dmat = sa->sa_dmatag;
qla_attach(sc);
return;
unmap:
bus_space_unmap(iot, ioh, sa->sa_size);
free:
free(iot, M_DEVBUF, 0);
}
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