sys/arch/amiga/dev/com_supio.c

   1 /*      $NetBSD: com_supio.c,v 1.26 2008/04/28 20:23:12 martin Exp $ */
   2
   3 /*-
   4  * Copyright (c) 1998 The NetBSD Foundation, Inc.
   5  * All rights reserved.
   6  *
   7  * This code is derived from software contributed to The NetBSD Foundation
   8  * by Charles M. Hannum.
   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 /*-
  33  * Copyright (c) 1991 The Regents of the University of California.
  34  * All rights reserved.
  35  *
  36  * Redistribution and use in source and binary forms, with or without
  37  * modification, are permitted provided that the following conditions
  38  * are met:
  39  * 1. Redistributions of source code must retain the above copyright
  40  *    notice, this list of conditions and the following disclaimer.
  41  * 2. Redistributions in binary form must reproduce the above copyright
  42  *    notice, this list of conditions and the following disclaimer in the
  43  *    documentation and/or other materials provided with the distribution.
  44  * 3. Neither the name of the University nor the names of its contributors
  45  *    may be used to endorse or promote products derived from this software
  46  *    without specific prior written permission.
  47  *
  48  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
  49  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  50  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  51  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
  52  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  53  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  54  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  55  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  56  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  57  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  58  * SUCH DAMAGE.
  59  *
  60  *      @(#)com.c       7.5 (Berkeley) 5/16/91
  61  */
  62
  63 #include <sys/cdefs.h>
  64 __KERNEL_RCSID(0, "$NetBSD: com_supio.c,v 1.26 2008/04/28 20:23:12 martin Exp $");
  65
  66 #include <sys/param.h>
  67 #include <sys/systm.h>
  68 #include <sys/ioctl.h>
  69 #include <sys/select.h>
  70 #include <sys/tty.h>
  71 #include <sys/proc.h>
  72 #include <sys/conf.h>
  73 #include <sys/file.h>
  74 #include <sys/uio.h>
  75 #include <sys/kernel.h>
  76 #include <sys/syslog.h>
  77 #include <sys/types.h>
  78 #include <sys/device.h>
  79
  80 #include <machine/intr.h>
  81 #include <machine/bus.h>
  82
  83 /*#include <dev/isa/isavar.h>*/
  84 #include <dev/ic/comreg.h>
  85 #include <dev/ic/comvar.h>
  86
  87 #include <amiga/dev/supio.h>
  88
  89 struct comsupio_softc {
  90         struct com_softc sc_com;
  91         struct isr sc_isr;
  92 };
  93
  94 int com_supio_match(device_t, cfdata_t , void *);
  95 void com_supio_attach(device_t, device_t, void *);
  96
  97 CFATTACH_DECL_NEW(com_supio, sizeof(struct comsupio_softc),
  98     com_supio_match, com_supio_attach, NULL, NULL);
  99
 100 int
 101 com_supio_match(device_t parent, cfdata_t match, void *aux)
 102 {
 103         int rv = 1;
 104         struct supio_attach_args *supa = aux;
 105
 106         if (strcmp(supa->supio_name,"com"))
 107                 return 0;
 108
 109         return (rv);
 110 }
 111
 112 void
 113 com_supio_attach(device_t parent, device_t self, void *aux)
 114 {
 115         struct comsupio_softc *sc = device_private(self);
 116         struct com_softc *csc = &sc->sc_com;
 117         int iobase;
 118         bus_space_tag_t iot;
 119         bus_space_handle_t ioh;
 120         struct supio_attach_args *supa = aux;
 121         u_int16_t needpsl;
 122
 123         csc->sc_dev = self;
 124
 125         /*
 126          * We're living on a superio chip.
 127          */
 128         iobase = supa->supio_iobase;
 129         iot = supa->supio_iot;
 130         aprint_normal(" port 0x%04x ipl %d", iobase, supa->supio_ipl);
 131
 132         if (bus_space_map(iot, iobase, COM_NPORTS, 0, &ioh))
 133                 panic("comattach: io mapping failed");
 134         COM_INIT_REGS(csc->sc_regs, iot, ioh, iobase);
 135
 136         csc->sc_frequency = supa->supio_arg;
 137
 138         com_attach_subr(csc);
 139
 140         /* XXX this should be really in the interrupt stuff */
 141         needpsl = PSL_S | (supa->supio_ipl << 8);
 142
 143         if (ipl2spl_table[IPL_SERIAL] < needpsl) {
 144                 aprint_normal_dev(self, "raising ipl2spl_table[IPL_SERIAL] "
 145                     "from 0x%x to 0x%x\n", ipl2spl_table[IPL_SERIAL], needpsl);
 146                 ipl2spl_table[IPL_SERIAL] = needpsl;
 147         }
 148         sc->sc_isr.isr_intr = comintr;
 149         sc->sc_isr.isr_arg = csc;
 150         sc->sc_isr.isr_ipl = supa->supio_ipl;
 151         add_isr(&sc->sc_isr);
 152
 153         if (!pmf_device_register1(self, com_suspend, com_resume, com_cleanup)) {
 154                 aprint_error_dev(self, "could not establish shutdown hook");
 155         }
 156 }