/* $NetBSD: pckbc_hpc.c,v 1.11 2020/11/21 17:18:31 thorpej Exp $         */

/*
* Copyright (c) 2003 Christopher SEKIYA
* 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 for the
*          NetBSD Project.  See http://www.NetBSD.org/ for
*          information about NetBSD.
* 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.
*/

#include <sys/cdefs.h>
__KERNEL_RCSID(0, "$NetBSD: pckbc_hpc.c,v 1.11 2020/11/21 17:18:31 thorpej Exp $");

#include <sys/param.h>
#include <sys/systm.h>
#include <sys/kernel.h>
#include <sys/proc.h>
#include <sys/device.h>
#include <sys/kmem.h>
#include <sys/errno.h>
#include <sys/queue.h>
#include <sys/bus.h>

#include <machine/autoconf.h>
#include <machine/machtype.h>

#include <dev/ic/i8042reg.h>
#include <dev/ic/pckbcvar.h>

#include <sgimips/hpc/hpcreg.h>
#include <sgimips/hpc/hpcvar.h>

struct pckbc_hpc_softc {
       struct pckbc_softc sc_pckbc;

       int     sc_irq;
       int     sc_hasintr;
};

static int      pckbc_hpc_match(device_t, cfdata_t, void *);
static void     pckbc_hpc_attach(device_t, device_t, void *);
static void     pckbc_hpc_intr_establish(struct pckbc_softc *, pckbc_slot_t);

CFATTACH_DECL_NEW(pckbc_hpc, sizeof(struct pckbc_hpc_softc),
             pckbc_hpc_match, pckbc_hpc_attach, NULL, NULL);

static int
pckbc_hpc_match(device_t parent, cfdata_t cf, void *aux)
{
       struct hpc_attach_args *ha = aux;

       if (strcmp(ha->ha_name, cf->cf_name) == 0)
               return (1);

       return (0);
}

static void
pckbc_hpc_attach(device_t parent, device_t self, void *aux)
{
       struct pckbc_hpc_softc *msc = device_private(self);
       struct pckbc_softc *sc = &msc->sc_pckbc;
       struct hpc_attach_args *haa = aux;
       struct pckbc_internal *t;
       bus_space_handle_t ioh_d, ioh_c;

       sc->sc_dv = self;

       msc->sc_irq = haa->ha_irq;

       msc->sc_hasintr = 0;

       sc->intr_establish = pckbc_hpc_intr_establish;

       /* XXX Ugly hack & kludge XXX */
       if (pckbc_is_console(haa->ha_st, MIPS_KSEG1_TO_PHYS(haa->ha_sh +
           haa->ha_devoff))) {
               t = &pckbc_consdata;
               pckbc_console_attached = 1;
       } else {
               /* XXX should be bus_space_map() */
               if (bus_space_subregion(haa->ha_st, haa->ha_sh,
                                       haa->ha_devoff + KBDATAP, 1, &ioh_d) ||
                   bus_space_subregion(haa->ha_st, haa->ha_sh,
                                       haa->ha_devoff + KBCMDP, 1, &ioh_c))
                       panic("pckbc_hpc_attach: couldn't map");

               t = kmem_zalloc(sizeof(struct pckbc_internal), KM_SLEEP);
               t->t_iot = hpc_memt;
               t->t_ioh_d = ioh_d;
               t->t_ioh_c = ioh_c;
               t->t_addr = haa->ha_sh;
               t->t_cmdbyte = KC8_CPU; /* Enable ports */
               callout_init(&t->t_cleanup, 0);
       }

       t->t_sc = sc;
       sc->id = t;

       aprint_normal("\n");

       /* Finish off the attach. */
       pckbc_attach(sc);
}

static void
pckbc_hpc_intr_establish(struct pckbc_softc * sc, pckbc_slot_t slot)
{
       struct pckbc_hpc_softc *msc = (void *) sc;

       if (msc->sc_hasintr)
               return;

       if (cpu_intr_establish(msc->sc_irq, IPL_TTY, pckbcintr, sc) == NULL) {
               aprint_error_dev(sc->sc_dv,
                   "unable to establish interrupt for %s slot\n",
                   pckbc_slot_names[slot]);
       } else {
               msc->sc_hasintr = 1;
       }
}