sys/arch/hp300/dev/com_frodo.c

   1 /*      $NetBSD: com_frodo.c,v 1.7 2008/03/14 15:09:10 cube 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_frodo.c,v 1.7 2008/03/14 15:09:10 cube Exp $");
  65
  66 #include <sys/param.h>
  67 #include <sys/systm.h>
  68 #include <sys/device.h>
  69 #include <sys/termios.h>
  70 #include <sys/ttydefaults.h>
  71
  72 #include <machine/bus.h>
  73
  74 #include <dev/ic/comreg.h>
  75 #include <dev/ic/comvar.h>
  76
  77 #include <hp300/dev/intiovar.h>
  78 #include <hp300/dev/frodoreg.h>
  79 #include <hp300/dev/frodovar.h>
  80 #include <hp300/dev/com_frodovar.h>
  81
  82 #include "ioconf.h"
  83
  84 struct com_frodo_softc {
  85         struct  com_softc sc_com;       /* real "com" softc */
  86 };
  87
  88 static int      com_frodo_match(device_t, cfdata_t , void *);
  89 static void     com_frodo_attach(device_t, device_t, void *);
  90
  91 CFATTACH_DECL_NEW(com_frodo, sizeof(struct com_frodo_softc),
  92     com_frodo_match, com_frodo_attach, NULL, NULL);
  93
  94 static int com_frodo_speed = TTYDEF_SPEED;
  95 static struct bus_space_tag comcntag;
  96
  97 #define CONMODE ((TTYDEF_CFLAG & ~(CSIZE | CSTOPB | PARENB)) | CS8) /* 8N1 */
  98 #define COM_FRODO_FREQ  8006400
  99
 100 static int
 101 com_frodo_match(device_t parent, cfdata_t match, void *aux)
 102 {
 103         struct frodo_attach_args *fa = aux;
 104
 105         if (strcmp(fa->fa_name, com_cd.cd_name) != 0)
 106                 return 0;
 107
 108         switch (fa->fa_offset) {
 109         case FRODO_APCI_OFFSET(1):
 110         case FRODO_APCI_OFFSET(2):
 111         case FRODO_APCI_OFFSET(3):
 112                 return 1;
 113         }
 114
 115         return 0;
 116 }
 117
 118 static void
 119 com_frodo_attach(device_t parent, device_t self, void *aux)
 120 {
 121         struct com_frodo_softc *fsc = device_private(self);
 122         struct com_softc *sc = &fsc->sc_com;
 123         struct frodo_attach_args *fa = aux;
 124         bus_space_tag_t iot;
 125         bus_space_handle_t ioh;
 126         int isconsole;
 127
 128         sc->sc_dev = self;
 129         isconsole = com_is_console(&comcntag, fa->fa_base + fa->fa_offset,
 130             &ioh);
 131
 132         if (isconsole)
 133                 iot = &comcntag;
 134         else
 135                 iot = fa->fa_bst;
 136
 137         if (!isconsole &&
 138             bus_space_map(iot, fa->fa_base + fa->fa_offset, COM_NPORTS << 2,
 139              0, &ioh)) {
 140                 aprint_error(": can't map i/o space\n");
 141                 return;
 142         }
 143         COM_INIT_REGS(sc->sc_regs, iot, ioh, fa->fa_base + fa->fa_offset);
 144
 145         sc->sc_frequency = COM_FRODO_FREQ;
 146         SET(sc->sc_hwflags, COM_HW_NOIEN);
 147
 148         com_attach_subr(sc);
 149
 150         frodo_intr_establish(parent, comintr, sc, fa->fa_line, IPL_VM);
 151 }
 152
 153 int
 154 com_frodo_cnattach(bus_space_tag_t bst, bus_addr_t addr, int scode)
 155 {
 156         bus_space_tag_t iot = &comcntag;
 157         bus_space_handle_t ioh;
 158
 159         if (machineid != HP_425 || mmuid != MMUID_425_E)
 160                 return 1;
 161
 162         frodo_init_bus_space(iot);
 163
 164         if (bus_space_map(iot, addr, INTIO_DEVSIZE, BUS_SPACE_MAP_LINEAR, &ioh))
 165                 return 1;
 166
 167         comcnattach(iot, addr, com_frodo_speed, COM_FRODO_FREQ,
 168             COM_TYPE_NORMAL, CONMODE);
 169
 170         return 0;
 171 }