/*      $NetBSD: adv_pci.c,v 1.31 2022/09/25 17:52:25 thorpej Exp $     */

/*
* Copyright (c) 1998 The NetBSD Foundation, Inc. All rights reserved.
*
* Author: Baldassare Dante Profeta <[email protected]>
*
* 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:
*
*    Connectivity Products:
*      ABP920 - Bus-Master PCI (16 CDB)
*      ABP930 - Bus-Master PCI (16 CDB)                (Footnote 1)
*      ABP930U - Bus-Master PCI Ultra (16 CDB)
*      ABP930UA - Bus-Master PCI Ultra (16 CDB)
*      ABP960 - Bus-Master PCI MAC/PC (16 CDB)         (Footnote 2)
*      ABP960U - Bus-Master PCI MAC/PC Ultra (16 CDB)  (Footnote 2)
*
*   Single Channel Products:
*      ABP940 - Bus-Master PCI (240 CDB)
*      ABP940U - Bus-Master PCI Ultra (240 CDB)
*      ABP970 - Bus-Master PCI MAC/PC (240 CDB)
*      ABP970U - Bus-Master PCI MAC/PC Ultra (240 CDB)
*      ABP940UW - Bus-Master PCI Ultra-Wide (240 CDB)
*
*   Multi Channel Products:
*      ABP950 - Dual Channel Bus-Master PCI (240 CDB Per Channel)
*      ABP980 - Four Channel Bus-Master PCI (240 CDB Per Channel)
*      ABP980U - Four Channel Bus-Master PCI Ultra (240 CDB Per Channel)
*
*   Footnotes:
*     1. This board has been sold by SIIG as the Fast SCSI Pro PCI.
*     2. This board has been sold by Iomega as a Jaz Jet PCI adapter.
*/

#include <sys/cdefs.h>
__KERNEL_RCSID(0, "$NetBSD: adv_pci.c,v 1.31 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/advlib.h>
#include <dev/ic/adv.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
adv_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_1200A:
               case PCI_PRODUCT_ADVSYS_1200B:
               case PCI_PRODUCT_ADVSYS_ULTRA:
                       return (1);
               }

       return 0;
}

static void
adv_pci_attach(device_t parent, device_t self, void *aux)
{
       struct pci_attach_args *pa = aux;
       ASC_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];

       aprint_naive(": SCSI controller\n");

       sc->sc_dev = self;
       sc->sc_flags = 0x0;
       if (PCI_VENDOR(pa->pa_id) == PCI_VENDOR_ADVSYS)
               switch (PCI_PRODUCT(pa->pa_id)) {
               case PCI_PRODUCT_ADVSYS_1200A:
                       aprint_normal(": AdvanSys ASC1200A SCSI adapter\n");
                       break;

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

               case PCI_PRODUCT_ADVSYS_ULTRA:
                       switch (PCI_REVISION(pa->pa_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;
               }


       /*
        * Make sure IO/MEM/MASTER are enabled
        */
       command = pci_conf_read(pa->pa_pc, pa->pa_tag, PCI_COMMAND_STATUS_REG);
       if ((command & (PCI_COMMAND_IO_ENABLE | PCI_COMMAND_MEM_ENABLE |
                       PCI_COMMAND_MASTER_ENABLE)) !=
           (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 | (PCI_COMMAND_IO_ENABLE | PCI_COMMAND_MEM_ENABLE |
                           PCI_COMMAND_MASTER_ENABLE));
       }
       /*
        * Latency timer settings.
        */
       {
               u_int32_t       bhlcr;

               bhlcr = pci_conf_read(pa->pa_pc, pa->pa_tag, PCI_BHLC_REG);

               if (PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_ADVSYS_1200A ||
                   PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_ADVSYS_1200B) {
                       bhlcr &= 0xFFFF00FFul;
                       pci_conf_write(pa->pa_pc, pa->pa_tag,
                                       PCI_BHLC_REG, bhlcr);
               } else if ((PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_ADVSYS_ULTRA)
                           && (PCI_LATTIMER(bhlcr) < 0x20)) {
                       bhlcr &= 0xFFFF00FFul;
                       bhlcr |= 0x00002000ul;
                       pci_conf_write(pa->pa_pc, pa->pa_tag,
                                       PCI_BHLC_REG, bhlcr);
               }
       }


       /*
        * 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(sc->sc_dev, "unable to map device registers\n");
               return;
       }

       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 = pa->pa_dmat;
       sc->pci_device_id = pa->pa_id;
       sc->bus_type = ASC_IS_PCI;
       sc->chip_version = ASC_GET_CHIP_VER_NO(iot, ioh);

       /*
        * Initialize the board
        */
       if (adv_init(sc))
               panic("adv_pci_attach: adv_init failed");

       /*
        * Map Interrupt line
        */
       if (pci_intr_map(pa, &ih)) {
               aprint_error_dev(sc->sc_dev, "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, adv_intr, sc,
           device_xname(self));
       if (sc->sc_ih == NULL) {
               aprint_error_dev(sc->sc_dev, "couldn't establish interrupt");
               if (intrstr != NULL)
                       aprint_error(" at %s", intrstr);
               aprint_error("\n");
               return;
       }
       aprint_normal_dev(sc->sc_dev, "interrupting at %s\n", intrstr);

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

CFATTACH_DECL_NEW(adv_pci, sizeof(ASC_SOFTC),
   adv_pci_match, adv_pci_attach, NULL, NULL);