/* $NetBSD: adw_pci.c,v 1.30 2022/09/25 17:52:25 thorpej Exp $   */

/*
 * Copyright (c) 1998, 1999, 2000 The NetBSD Foundation, Inc.
 * All rights reserved.
 *
 * Author: Baldassare Dante Profeta <dante@mclink.it>
 *
 * 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.
 */
/*
 * Device probe and attach routines for the following
 * Advanced Systems Inc. SCSI controllers:
 *
 *      ABP-940UW       - Bus-Master PCI Ultra-Wide (253 CDB)
 *      ABP-940UW (68)  - Bus-Master PCI Ultra-Wide (253 CDB)
 *      ABP-940UWD      - Bus-Master PCI Ultra-Wide (253 CDB)
 *      ABP-970UW       - Bus-Master PCI Ultra-Wide (253 CDB)
 *      ASB-3940UW      - Bus-Master PCI Ultra-Wide (253 CDB)
 *      ASB-3940U2W-00  - Bus-Master PCI Ultra2-Wide (253 CDB)
 *      ASB-3940U3W-00  - Bus-Master PCI Ultra3-Wide (253 CDB)
 */

#include <sys/cdefs.h>
__KERNEL_RCSID(0, "$NetBSD: adw_pci.c,v 1.30 2022/09/25 17:52:25 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/pcivar.h>
#include <dev/pci/pcidevs.h>

#include <dev/ic/adwlib.h>
#include <dev/ic/adwmcode.h>
#include <dev/ic/adw.h>

/******************************************************************************/

#define PCI_BASEADR_IO        0x10

/******************************************************************************/
/*
 * Check the slots looking for a board we recognise
 * If we find one, note its address (slot) and call
 * the actual probe routine to check it out.
 */
static int
adw_pci_match(device_t parent, cfdata_t match, void *aux)
{
        struct pci_attach_args *pa = aux;

        if (PCI_VENDOR(pa->pa_id) == PCI_VENDOR_ADVSYS)
                switch (PCI_PRODUCT(pa->pa_id)) {
                case PCI_PRODUCT_ADVSYS_WIDE:
                case PCI_PRODUCT_ADVSYS_U2W:
                case PCI_PRODUCT_ADVSYS_U3W:
                        return (1);
                }

        return 0;
}


static void
adw_pci_attach(device_t parent, device_t self, void *aux)
{
        struct pci_attach_args *pa = aux;
        ADW_SOFTC      *sc = device_private(self);
        bus_space_tag_t iot;
        bus_space_handle_t ioh;
        pci_intr_handle_t ih;
        pci_chipset_tag_t pc = pa->pa_pc;
        u_int32_t       command;
        const char     *intrstr;
        char intrbuf[PCI_INTRSTR_LEN];

        sc->sc_dev = self;

        aprint_naive(": SCSI controller\n");

        if (PCI_VENDOR(pa->pa_id) == PCI_VENDOR_ADVSYS)
                switch (PCI_PRODUCT(pa->pa_id)) {
                case PCI_PRODUCT_ADVSYS_WIDE:
                        sc->chip_type = ADW_CHIP_ASC3550;
                        aprint_normal(
                            ": AdvanSys ASB-3940UW-00 SCSI adapter\n");
                        break;

                case PCI_PRODUCT_ADVSYS_U2W:
                        sc->chip_type = ADW_CHIP_ASC38C0800;
                        aprint_normal(
                            ": AdvanSys ASB-3940U2W-00 SCSI adapter\n");
                        break;

                case PCI_PRODUCT_ADVSYS_U3W:
                        sc->chip_type = ADW_CHIP_ASC38C1600;
                        aprint_normal(
                            ": AdvanSys ASB-3940U3W-00 SCSI adapter\n");
                        break;

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


        /*
         * Make sure IO/MEM/MASTER are enabled
         */
        command = pci_conf_read(pa->pa_pc, pa->pa_tag, PCI_COMMAND_STATUS_REG);
        command |= PCI_COMMAND_IO_ENABLE | PCI_COMMAND_MEM_ENABLE |
                        PCI_COMMAND_MASTER_ENABLE;
        pci_conf_write(pa->pa_pc, pa->pa_tag, PCI_COMMAND_STATUS_REG, command);

        if ( (command & PCI_COMMAND_PARITY_ENABLE) == 0) {
                sc->cfg.control_flag |= CONTROL_FLAG_IGNORE_PERR;
        }
        /*
         * Map Device Registers for I/O
         */
        if (pci_mapreg_map(pa, PCI_BASEADR_IO, PCI_MAPREG_TYPE_IO, 0,
                           &iot, &ioh, NULL, NULL)) {
                aprint_error_dev(self, "unable to map device registers\n");
                return;
        }
        sc->sc_iot = iot;
        sc->sc_ioh = ioh;
        sc->sc_dmat = pa->pa_dmat;

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

        /*
         * Map Interrupt line
         */
        if (pci_intr_map(pa, &ih)) {
                aprint_error_dev(self, "couldn't map interrupt\n");
                return;
        }
        intrstr = pci_intr_string(pc, ih, intrbuf, sizeof(intrbuf));

        /*
         * Establish Interrupt handler
         */
        sc->sc_ih = pci_intr_establish_xname(pc, ih, IPL_BIO, adw_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);

        /*
         * Attach all the sub-devices we can find
         */
        adw_attach(sc);
}

CFATTACH_DECL_NEW(adw_pci, sizeof(ADW_SOFTC),
    adw_pci_match, adw_pci_attach, NULL, NULL);