/*      $NetBSD: com_obio.c,v 1.12 2018/12/08 17:46:10 thorpej Exp $    */

/*-
* Copyright (c) 1998 The NetBSD Foundation, Inc.
* All rights reserved.
*
* This code is derived from software contributed to The NetBSD Foundation
* by Charles M. Hannum.
*
* 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.
*/

/*-
* Copyright (c) 1991 The Regents of the University of California.
* 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. Neither the name of the University nor the names of its contributors
*    may be used to endorse or promote products derived from this software
*    without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE REGENTS 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 REGENTS 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.
*
*      @(#)com.c       7.5 (Berkeley) 5/16/91
*/

#include <sys/cdefs.h>
__KERNEL_RCSID(0, "$NetBSD: com_obio.c,v 1.12 2018/12/08 17:46:10 thorpej Exp $");

#include <sys/param.h>
#include <sys/systm.h>
#include <sys/ioctl.h>
#include <sys/select.h>
#include <sys/tty.h>
#include <sys/proc.h>
#include <sys/conf.h>
#include <sys/file.h>
#include <sys/uio.h>
#include <sys/kernel.h>
#include <sys/syslog.h>
#include <sys/types.h>
#include <sys/device.h>
#include <sys/termios.h>

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

#include <dev/ic/comreg.h>
#include <dev/ic/comvar.h>

#include <dev/marvell/gtvar.h>

#include "locators.h"

struct com_obio_softc {
       struct com_softc osc_com;       /* real "com" softc */

       /* OBIO-specific goo. */
};

static int com_obio_match (device_t, cfdata_t , void *);
static void com_obio_attach (device_t, device_t, void *);

CFATTACH_DECL_NEW(com_obio, sizeof(struct com_obio_softc),
   com_obio_match, com_obio_attach, NULL, NULL);

int
com_obio_match(device_t parent, cfdata_t cf, void *aux)
{
       struct obio_attach_args *oa = aux;
       bus_space_handle_t ioh;
       int rv = 0;

       if (oa->oa_offset == OBIOCF_OFFSET_DEFAULT ||
           oa->oa_size == OBIOCF_SIZE_DEFAULT)
               return (0);

       if (com_is_console(oa->oa_memt, oa->oa_offset, NULL)) {
               rv = 1;
       } else {
               if (bus_space_map(oa->oa_memt, oa->oa_offset,
                   oa->oa_size, 0, &ioh))
                       return (0);
               rv = comprobe1(oa->oa_memt, ioh);
               bus_space_unmap(oa->oa_memt, ioh, oa->oa_size);
       }

       return (rv);
}

void
com_obio_attach(device_t parent, device_t self, void *aux)
{
       struct com_obio_softc *osc = device_private(self);
       struct com_softc *sc = &osc->osc_com;
       struct obio_attach_args *oa = aux;
       bus_space_handle_t ioh;

       sc->sc_dev = self;
       sc->sc_frequency = COM_FREQ*2;

       if (!com_is_console(oa->oa_memt, oa->oa_offset, &ioh) &&
           bus_space_map(oa->oa_memt, oa->oa_offset, oa->oa_size,
               0, &ioh) != 0) {
               aprint_error(": can't map registers\n");
               return;
       }

       com_init_regs(&sc->sc_regs, oa->oa_memt, ioh, oa->oa_offset);
       sc->sc_regs.cr_nports = oa->oa_size;
       com_attach_subr(sc);

       if (oa->oa_irq >= 0) {
               intr_establish(oa->oa_irq, IST_EDGE, IPL_SERIAL, comintr, sc);
               aprint_normal_dev(self, "interrupting at %d\n", oa->oa_irq);
       }
}