/* $NetBSD: lpt_sableio.c,v 1.12 2021/05/07 16:58:34 thorpej Exp $ */

/*-
* Copyright (c) 1999 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 <sys/cdefs.h>                  /* RCS ID & Copyright macro defns */

__KERNEL_RCSID(0, "$NetBSD: lpt_sableio.c,v 1.12 2021/05/07 16:58:34 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 <machine/intr.h>
#include <sys/bus.h>

#include <dev/ic/lptreg.h>
#include <dev/ic/lptvar.h>

#include <dev/pci/pcivar.h>
#include <dev/isa/isavar.h>

#include <alpha/sableio/sableiovar.h>

struct lpt_sableio_softc {
       struct lpt_softc sc_lpt;        /* real "lpt" softc */

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

static int      lpt_sableio_match(device_t, cfdata_t , void *);
static void     lpt_sableio_attach(device_t, device_t, void *);

CFATTACH_DECL_NEW(lpt_sableio, sizeof(struct lpt_sableio_softc),
   lpt_sableio_match, lpt_sableio_attach, NULL, NULL);

static int
lpt_sableio_match(device_t parent, cfdata_t match, void *aux)
{
       struct sableio_attach_args *sa = aux;

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

       return (0);
}

static void
lpt_sableio_attach(device_t parent, device_t self, void *aux)
{
       struct lpt_sableio_softc *ssc = device_private(self);
       struct lpt_softc *sc = &ssc->sc_lpt;
       struct sableio_attach_args *sa = aux;
       const char *intrstr;
       char buf[PCI_INTRSTR_LEN];
       pci_intr_handle_t ih;

       sc->sc_dev = self;
       sc->sc_iot = sa->sa_iot;

       if (bus_space_map(sc->sc_iot, sa->sa_ioaddr, LPT_NPORTS, 0,
           &sc->sc_ioh) != 0) {
               aprint_error(": can't map i/o space\n");
               return;
       }

       aprint_normal("\n");
       aprint_naive("\n");

       lpt_attach_subr(sc);

       alpha_pci_intr_handle_init(&ih, sa->sa_sableirq[0], 0);

       intrstr = pci_intr_string(sa->sa_pc, ih, buf, sizeof(buf));
       ssc->sc_ih = pci_intr_establish(sa->sa_pc, ih, IPL_TTY, lptintr, sc);
       if (ssc->sc_ih == NULL) {
               aprint_error_dev(self, "unable to establish interrupt");
               if (intrstr != NULL)
                       aprint_error(" at %s", intrstr);
               aprint_error("\n");
               return;
       }
       aprint_normal_dev(self, "interrupting at %s\n", intrstr);
}