/*      $NetBSD: com_mainbus.c,v 1.15 2018/12/08 17:46:09 thorpej Exp $ */

/*-
* Copyright (c) 2001 The NetBSD Foundation, Inc.
* All rights reserved.
*
* This code is derived from software contributed to The NetBSD Foundation
* by Jason R. Thorpe.
*
* 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.
*/

#include "opt_algor_p4032.h"

#include <sys/cdefs.h>                  /* RCS ID & Copyright macro defns */

__KERNEL_RCSID(0, "$NetBSD: com_mainbus.c,v 1.15 2018/12/08 17:46:09 thorpej Exp $");

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

#include <algor/autoconf.h>

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

struct com_mainbus_softc {
       struct  com_softc sc_com;       /* real "com" softc */

       /* mainbus-specific goo. */
       void    *sc_ih;                 /* interrupt handler */
};

static int      com_mainbus_match(device_t, cfdata_t , void *);
static void     com_mainbus_attach(device_t, device_t, void *);

CFATTACH_DECL_NEW(com_mainbus, sizeof(struct com_mainbus_softc),
   com_mainbus_match, com_mainbus_attach, NULL, NULL);

int
com_mainbus_match(device_t parent, cfdata_t match, void *aux)
{
       struct mainbus_attach_args *ma = aux;

       /* Always present. */
       if (strcmp(ma->ma_name, match->cf_name) == 0)
               return (1);

       return (0);
}

void
com_mainbus_attach(device_t parent, device_t self, void *aux)
{
       struct com_mainbus_softc *msc = device_private(self);
       struct com_softc *sc = &msc->sc_com;
       struct mainbus_attach_args *ma = aux;
       bus_space_handle_t ioh;

       sc->sc_dev = self;
       if (com_is_console(ma->ma_st, ma->ma_addr, &ioh) == 0 &&
           bus_space_map(ma->ma_st, ma->ma_addr, COM_NPORTS, 0, &ioh) != 0) {
               aprint_error(": can't map i/o space\n");
               return;
       }
       com_init_regs(&sc->sc_regs, ma->ma_st, ioh, ma->ma_addr);
       sc->sc_frequency = COM_FREQ;

       com_attach_subr(sc);

       msc->sc_ih = (*algor_intr_establish)(ma->ma_irq, comintr, sc);
       if (msc->sc_ih == NULL) {
               aprint_error_dev(self, "unable to establish interrupt\n");
               return;
       }

       if (!pmf_device_register1(self, com_suspend, com_resume, com_cleanup)) {
               aprint_error_dev(self, "could not establish shutdown hook");
       }

}