sys/arch/alpha/jensenio/com_jensenio.c

   1 /* $NetBSD: com_jensenio.c,v 1.10 2008/04/28 20:23:11 martin Exp $ */
   2
   3 /*-
   4  * Copyright (c) 1999 The NetBSD Foundation, Inc.
   5  * All rights reserved.
   6  *
   7  * This code is derived from software contributed to The NetBSD Foundation
   8  * by Jason R. Thorpe.
   9  *
  10  * Redistribution and use in source and binary forms, with or without
  11  * modification, are permitted provided that the following conditions
  12  * are met:
  13  * 1. Redistributions of source code must retain the above copyright
  14  *    notice, this list of conditions and the following disclaimer.
  15  * 2. Redistributions in binary form must reproduce the above copyright
  16  *    notice, this list of conditions and the following disclaimer in the
  17  *    documentation and/or other materials provided with the distribution.
  18  *
  19  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
  20  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
  21  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
  22  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
  23  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
  24  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
  25  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
  26  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
  27  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
  28  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
  29  * POSSIBILITY OF SUCH DAMAGE.
  30  */
  31
  32 #include <sys/cdefs.h>                  /* RCS ID & Copyright macro defns */
  33
  34 __KERNEL_RCSID(0, "$NetBSD: com_jensenio.c,v 1.10 2008/04/28 20:23:11 martin Exp $");
  35
  36 #include <sys/param.h>
  37 #include <sys/systm.h>
  38 #include <sys/ioctl.h>
  39 #include <sys/select.h>
  40 #include <sys/tty.h>
  41 #include <sys/proc.h>
  42 #include <sys/conf.h>
  43 #include <sys/file.h>
  44 #include <sys/uio.h>
  45 #include <sys/kernel.h>
  46 #include <sys/syslog.h>
  47 #include <sys/types.h>
  48 #include <sys/device.h>
  49
  50 #include <machine/intr.h>
  51 #include <machine/bus.h>
  52
  53 #include <dev/ic/comreg.h>
  54 #include <dev/ic/comvar.h>
  55
  56 #include <dev/eisa/eisavar.h>
  57
  58 #include <dev/isa/isavar.h>
  59
  60 #include <alpha/jensenio/jenseniovar.h>
  61
  62 struct com_jensenio_softc {
  63         struct  com_softc sc_com;       /* real "com" softc */
  64
  65         /* Jensen-specific goo. */
  66         char    sc_vecstr[8];
  67         struct evcnt sc_ev_intr;
  68 };
  69
  70 int     com_jensenio_match(device_t, cfdata_t , void *);
  71 void    com_jensenio_attach(device_t, device_t, void *);
  72
  73 CFATTACH_DECL_NEW(com_jensenio, sizeof(struct com_jensenio_softc),
  74     com_jensenio_match, com_jensenio_attach, NULL, NULL);
  75
  76 void    com_jensenio_intr(void *, u_long);
  77
  78 int
  79 com_jensenio_match(device_t parent, cfdata_t match, void *aux)
  80 {
  81         struct jensenio_attach_args *ja = aux;
  82
  83         /* Always present. */
  84         if (strcmp(ja->ja_name, match->cf_name) == 0)
  85                 return (1);
  86
  87         return (0);
  88 }
  89
  90 void
  91 com_jensenio_attach(device_t parent, device_t self, void *aux)
  92 {
  93         struct com_jensenio_softc *jsc = device_private(self);
  94         struct com_softc *sc = &jsc->sc_com;
  95         struct jensenio_attach_args *ja = aux;
  96         bus_space_handle_t ioh;
  97
  98         sc->sc_dev = self;
  99         if (com_is_console(ja->ja_iot, ja->ja_ioaddr, &ioh) == 0 &&
 100             bus_space_map(ja->ja_iot, ja->ja_ioaddr, COM_NPORTS, 0,
 101                 &ioh) != 0) {
 102                 aprint_error(": can't map i/o space\n");
 103                 return;
 104         }
 105         COM_INIT_REGS(sc->sc_regs, ja->ja_iot, ioh, ja->ja_ioaddr);
 106
 107         sc->sc_frequency = COM_FREQ;
 108
 109         com_attach_subr(sc);
 110
 111         scb_set(ja->ja_irq[0], com_jensenio_intr, sc, IPL_VM);
 112         aprint_normal_dev(self, "interrupting at vector 0x%x\n",
 113             ja->ja_irq[0]);
 114
 115         sprintf(jsc->sc_vecstr, "0x%x", ja->ja_irq[0]);
 116         evcnt_attach_dynamic(&jsc->sc_ev_intr, EVCNT_TYPE_INTR,
 117             NULL, "vector", jsc->sc_vecstr);
 118
 119         if (!pmf_device_register1(self, com_suspend, com_resume, com_cleanup)) {
 120                 aprint_error_dev(self, "could not establish shutdown hook");
 121         }
 122 }
 123
 124 void
 125 com_jensenio_intr(void *arg, u_long vec)
 126 {
 127         struct com_jensenio_softc *jsc = arg;
 128
 129         jsc->sc_ev_intr.ev_count++;
 130         (void) comintr(&jsc->sc_com);
 131 }