/*      $NetBSD: adv_cardbus.c,v 1.31 2022/09/25 17:33:19 thorpej Exp $ */

/*-
 * Copyright (c) 2000 The NetBSD Foundation, Inc.
 * All rights reserved.
 *
 * This code is derived from software contributed to The NetBSD Foundation
 * by 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.
 *
 * 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.
 */

/*
 * this file was brought from ahc_cardbus.c and adv_pci.c
 * and modified by YAMAMOTO Takashi.
 */

#include <sys/cdefs.h>
__KERNEL_RCSID(0, "$NetBSD: adv_cardbus.c,v 1.31 2022/09/25 17:33:19 thorpej Exp $");

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

#include <sys/bus.h>
#include <sys/intr.h>

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

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

#include <dev/cardbus/cardbusvar.h>
#include <dev/pci/pcidevs.h>

#include <dev/ic/advlib.h>
#include <dev/ic/adv.h>

#define ADV_CARDBUS_IOBA PCI_BAR0
#define ADV_CARDBUS_MMBA PCI_BAR1

#define ADV_CARDBUS_DEBUG
#define ADV_CARDBUS_ALLOW_MEMIO

#define DEVNAME(sc) device_xname((sc)->sc_dev)

struct adv_cardbus_softc {
        struct asc_softc sc_adv;        /* real ADV */

        /* CardBus-specific goo. */
        cardbus_devfunc_t sc_ct;        /* our CardBus devfuncs */
        pcitag_t sc_tag;

        int     sc_bar;
        pcireg_t        sc_csr;
        bus_size_t sc_size;
};

int     adv_cardbus_match(device_t, cfdata_t, void *);
void    adv_cardbus_attach(device_t, device_t, void *);
int     adv_cardbus_detach(device_t, int);

CFATTACH_DECL_NEW(adv_cardbus, sizeof(struct adv_cardbus_softc),
    adv_cardbus_match, adv_cardbus_attach, adv_cardbus_detach, NULL);

int
adv_cardbus_match(device_t parent, cfdata_t match, void *aux)
{
        struct cardbus_attach_args *ca = aux;

        if (PCI_VENDOR(ca->ca_id) == PCI_VENDOR_ADVSYS &&
            PCI_PRODUCT(ca->ca_id) == PCI_PRODUCT_ADVSYS_ULTRA)
                return (1);

        return (0);
}

void
adv_cardbus_attach(device_t parent, device_t self, void *aux)
{
        struct cardbus_attach_args *ca = aux;
        struct adv_cardbus_softc *csc = device_private(self);
        struct asc_softc *sc = &csc->sc_adv;
        cardbus_devfunc_t ct = ca->ca_ct;
        bus_space_tag_t iot;
        bus_space_handle_t ioh;
        pcireg_t reg;
        u_int8_t latency = 0x20;

        sc->sc_dev = self;
        sc->sc_flags = 0;

        if (PCI_VENDOR(ca->ca_id) == PCI_VENDOR_ADVSYS) {
                switch (PCI_PRODUCT(ca->ca_id)) {
                case PCI_PRODUCT_ADVSYS_1200A:
                        aprint_normal(": AdvanSys ASC1200A SCSI adapter\n");
                        latency = 0;
                        break;

                case PCI_PRODUCT_ADVSYS_1200B:
                        aprint_normal(": AdvanSys ASC1200B SCSI adapter\n");
                        latency = 0;
                        break;

                case PCI_PRODUCT_ADVSYS_ULTRA:
                        switch (PCI_REVISION(ca->ca_class)) {
                        case ASC_PCI_REVISION_3050:
                                aprint_normal(": AdvanSys ABP-9xxUA "
                                    "SCSI adapter\n");
                                break;

                        case ASC_PCI_REVISION_3150:
                                aprint_normal(": AdvanSys ABP-9xxU "
                                    "SCSI adapter\n");
                                break;
                        }
                        break;

                default:
                        aprint_error(": unknown model!\n");
                        return;
                }
        }

        csc->sc_ct = ct;
        csc->sc_tag = ca->ca_tag;

        /*
         * Map the device.
         */
        csc->sc_csr = PCI_COMMAND_MASTER_ENABLE;

#ifdef ADV_CARDBUS_ALLOW_MEMIO
        if (Cardbus_mapreg_map(csc->sc_ct, ADV_CARDBUS_MMBA,
            PCI_MAPREG_TYPE_MEM|PCI_MAPREG_MEM_TYPE_32BIT, 0,
            &iot, &ioh, NULL, &csc->sc_size) == 0) {
#ifdef ADV_CARDBUS_DEBUG
                printf("%s: memio enabled\n", DEVNAME(sc));
#endif
                csc->sc_bar = ADV_CARDBUS_MMBA;
                csc->sc_csr |= PCI_COMMAND_MEM_ENABLE;
        } else
#endif
        if (Cardbus_mapreg_map(csc->sc_ct, ADV_CARDBUS_IOBA,
            PCI_MAPREG_TYPE_IO, 0, &iot, &ioh, NULL, &csc->sc_size) == 0) {
#ifdef ADV_CARDBUS_DEBUG
                printf("%s: io enabled\n", DEVNAME(sc));
#endif
                csc->sc_bar = ADV_CARDBUS_IOBA;
                csc->sc_csr |= PCI_COMMAND_IO_ENABLE;
        } else {
                csc->sc_bar = 0;
                aprint_error_dev(self, "unable to map device registers\n");
                return;
        }

        /* Enable the appropriate bits in the PCI CSR. */
        reg = Cardbus_conf_read(ct, ca->ca_tag, PCI_COMMAND_STATUS_REG);
        reg &= ~(PCI_COMMAND_IO_ENABLE|PCI_COMMAND_MEM_ENABLE);
        reg |= csc->sc_csr;
        Cardbus_conf_write(ct, ca->ca_tag, PCI_COMMAND_STATUS_REG, reg);

        /*
         * Make sure the latency timer is set to some reasonable
         * value.
         */
        reg = Cardbus_conf_read(ct, ca->ca_tag, PCI_BHLC_REG);
        if (PCI_LATTIMER(reg) < latency) {
                reg &= ~(PCI_LATTIMER_MASK << PCI_LATTIMER_SHIFT);
                reg |= (latency << PCI_LATTIMER_SHIFT);
                Cardbus_conf_write(ct, ca->ca_tag, PCI_BHLC_REG, reg);
        }

        ASC_SET_CHIP_CONTROL(iot, ioh, ASC_CC_HALT);
        ASC_SET_CHIP_STATUS(iot, ioh, 0);

        sc->sc_iot = iot;
        sc->sc_ioh = ioh;
        sc->sc_dmat = ca->ca_dmat;
        sc->pci_device_id = ca->ca_id;
        sc->bus_type = ASC_IS_PCI;
        sc->chip_version = ASC_GET_CHIP_VER_NO(iot, ioh);

        /*
         * Initialize the board
         */
        if (adv_init(sc)) {
                aprint_error_dev(self, "adv_init failed\n");
                return;
        }

        /*
         * Establish the interrupt.
         */
        sc->sc_ih = Cardbus_intr_establish(ct, IPL_BIO, adv_intr, sc);
        if (sc->sc_ih == NULL) {
                aprint_error_dev(self, "unable to establish interrupt\n");
                return;
        }

        /*
         * Attach.
         */
        adv_attach(sc);
}

int
adv_cardbus_detach(device_t self, int flags)
{
        struct adv_cardbus_softc *csc = device_private(self);
        struct asc_softc *sc = &csc->sc_adv;

        int rv;

        rv = adv_detach(sc, flags);
        if (rv)
                return rv;

        if (sc->sc_ih) {
                Cardbus_intr_disestablish(csc->sc_ct, sc->sc_ih);
                sc->sc_ih = 0;
        }

        if (csc->sc_bar != 0) {
                Cardbus_mapreg_unmap(csc->sc_ct, csc->sc_bar,
                    sc->sc_iot, sc->sc_ioh, csc->sc_size);
                csc->sc_bar = 0;
        }

        return 0;
}