/*      $NetBSD: xmi.c,v 1.13 2021/08/07 16:19:17 thorpej Exp $ */

/*
* Copyright (c) 2000 Ludd, University of Lule}, Sweden. 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.
* 3. All advertising materials mentioning features or use of this software
*    must display the following acknowledgement:
*      This product includes software developed at Ludd, University of
*      Lule}, Sweden and its contributors.
* 4. 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 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.
*/

/*
* XMI specific routines.
*/

#include <sys/cdefs.h>
__KERNEL_RCSID(0, "$NetBSD: xmi.c,v 1.13 2021/08/07 16:19:17 thorpej Exp $");

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

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

#include <dev/xmi/xmireg.h>
#include <dev/xmi/xmivar.h>

static int xmi_print(void *, const char *);

const struct xmi_list xmi_list[] = {
       {XMIDT_KA62, 0, "ka6200"},
       {XMIDT_KA64, 1, "ka6400"},
       {XMIDT_KA65, 0, "ka6500"},
       {XMIDT_KA66, 0, "ka6600"},
       {XMIDT_MS62, 1, "ms62"},
       {XMIDT_DWMBA, 1, "dwmba"},
       {0,0,0}
};

int
xmi_print(void *aux, const char *name)
{
       struct xmi_attach_args * const xa = aux;
       const struct xmi_list *xl;

       for (xl = &xmi_list[0]; xl->xl_nr; xl++)
               if (xl->xl_nr == bus_space_read_2(xa->xa_iot, xa->xa_ioh, 0))
                       break;

       if (name) {
               if (xl->xl_nr == 0)
                       aprint_normal("unknown device 0x%x",
                           bus_space_read_2(xa->xa_iot, xa->xa_ioh, 0));
               else
                       aprint_normal(xl->xl_name);
               aprint_normal(" at %s", name);
       }
       aprint_normal(" node %d", xa->xa_nodenr);
       return xl->xl_havedriver ? UNCONF : UNSUPP;
}

static  int lastiv = 0;

void
xmi_attach(struct xmi_softc *sc)
{
       struct xmi_attach_args xa;
       int nodenr;

       aprint_normal("\n");

       xa.xa_iot = sc->sc_iot;
       xa.xa_busnr = sc->sc_busnr;
       xa.xa_dmat = sc->sc_dmat;
       xa.xa_intcpu = sc->sc_intcpu;
       /*
        * Interrupt numbers. All vectors from 256-512 are free, use
        * them for XMI devices and just count them up.
        * Above 512 are only interrupt vectors for unibus devices.
        *
        * The XMI nodespace is giant in size. Only map in the first
        * page here and map more (if needed) in the device itself.
        */
       for (nodenr = 0; nodenr < NNODEXMI; nodenr++) {
               if (bus_space_map(sc->sc_iot, sc->sc_addr + XMI_NODE(nodenr),
                   PAGE_SIZE, 0, &xa.xa_ioh)) {
                       aprint_error_dev(sc->sc_dev,
                           "bus_space_map failed, node %d\n", nodenr);
                       return;
               }
               if (badaddr((void *)xa.xa_ioh, 4)) {
                       bus_space_unmap(sc->sc_iot, xa.xa_ioh, PAGE_SIZE);
                       continue;
               }
               xa.xa_nodenr = nodenr;
               xa.xa_ivec = 256 + lastiv;
               lastiv += 4;
               config_found(sc->sc_dev, &xa, xmi_print, CFARGS_NONE);
       }
}