/* $NetBSD: iha_pci.c,v 1.20 2018/12/09 11:14:02 jdolecek Exp $ */

/* $NetBSD: iha_pci.c,v 1.20 2018/12/09 11:14:02 jdolecek Exp $ */

/*-
* Copyright (c) 2001 Izumi Tsutsui. 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.
*
* 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.
*/

/*-
* Device driver for the INI-9XXXU/UW or INIC-940/950 PCI SCSI Controller.
*
* Written for 386bsd and FreeBSD by
* Winston Hung <[email protected]>
*
* Copyright (c) 1997-1999 Initio Corp.
* Copyright (c) 2000 Ken Westerback
* 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,
* without modification, immediately at the beginning of the file.
* 2. 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 OR HIS RELATIVES 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 MIND, 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.
*/

/*
* Ported to NetBSD by Izumi Tsutsui <[email protected]> from OpenBSD:
* $OpenBSD: iha_pci.c,v 1.2 2001/03/29 23:53:38 krw Exp $
*/

#include <sys/cdefs.h>
__KERNEL_RCSID(0, "$NetBSD: iha_pci.c,v 1.20 2018/12/09 11:14:02 jdolecek Exp $");

#include <sys/param.h>
#include <sys/systm.h>
#include <sys/device.h>

#include <dev/pci/pcidevs.h>
#include <dev/pci/pcivar.h>

#include <dev/scsipi/scsipi_all.h>
#include <dev/scsipi/scsi_all.h>
#include <dev/scsipi/scsiconf.h>

#include <dev/ic/ihavar.h>

static int iha_pci_match(device_t, cfdata_t, void *);
static void iha_pci_attach(device_t, device_t, void *);

CFATTACH_DECL_NEW(iha_pci, sizeof(struct iha_softc),
iha_pci_match, iha_pci_attach, NULL, NULL);

static int
iha_pci_match(device_t parent, cfdata_t cf, void *aux)
{
struct pci_attach_args *pa = aux;

if (PCI_VENDOR(pa->pa_id) != PCI_VENDOR_INITIO)
return 0;

switch (PCI_PRODUCT(pa->pa_id)) {
case PCI_PRODUCT_INITIO_I940:
case PCI_PRODUCT_INITIO_I950:
return 1;
}

return 0;
}

static void
iha_pci_attach(device_t parent, device_t self, void *aux)
{
struct iha_softc *sc = device_private(self);
struct pci_attach_args *pa = aux;
bus_space_tag_t iot;
bus_space_handle_t ioh;
pci_intr_handle_t ih;
const char *intrstr;
pcireg_t command;
int ioh_valid;
char intrbuf[PCI_INTRSTR_LEN];

sc->sc_dev = self;

pci_aprint_devinfo(pa, NULL);

command = pci_conf_read(pa->pa_pc,pa->pa_tag,PCI_COMMAND_STATUS_REG);
command |= PCI_COMMAND_MASTER_ENABLE | PCI_COMMAND_PARITY_ENABLE;

pci_conf_write(pa->pa_pc, pa->pa_tag, PCI_COMMAND_STATUS_REG, command);

/*
* XXX - Tried memory mapping (using code from adw and ahc)
* rather that IO mapping, but it didn't work at all..
*/
ioh_valid = pci_mapreg_map(pa, PCI_MAPREG_START, PCI_MAPREG_TYPE_IO, 0,
&iot, &ioh, NULL, NULL);

if (ioh_valid != 0) {
aprint_error_dev(self, "unable to map registers\n");
return;
}

sc->sc_iot = iot;
sc->sc_ioh = ioh;
sc->sc_dmat = pa->pa_dmat;

if (pci_intr_map(pa, &ih)) {
aprint_error_dev(self, "couldn't map interrupt\n");
return;
}
intrstr = pci_intr_string(pa->pa_pc, ih, intrbuf, sizeof(intrbuf));

sc->sc_ih = pci_intr_establish_xname(pa->pa_pc, ih, IPL_BIO, iha_intr,
sc, device_xname(self));

if (sc->sc_ih == NULL) {
aprint_error_dev(self, "couldn't establish interrupt");
if (intrstr != NULL)
aprint_error(" at %s", intrstr);
aprint_error("\n");
return;
}
aprint_normal_dev(self, "interrupting at %s\n", intrstr);

iha_attach(sc);
}