sys/arch/cobalt/dev/com_mainbus.c

   1 /*      $NetBSD: com_mainbus.c,v 1.16 2008/03/22 18:32:20 tsutsui Exp $ */
   2
   3 /*
   4  * Copyright (c) 2000 Soren S. Jorvang.  All rights reserved.
   5  *
   6  * Redistribution and use in source and binary forms, with or without
   7  * modification, are permitted provided that the following conditions
   8  * are met:
   9  * 1. Redistributions of source code must retain the above copyright
  10  *    notice, this list of conditions, and the following disclaimer.
  11  * 2. Redistributions in binary form must reproduce the above copyright
  12  *    notice, this list of conditions and the following disclaimer in the
  13  *    documentation and/or other materials provided with the distribution.
  14  *
  15  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
  16  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  17  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  18  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
  19  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  20  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  21  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  22  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  23  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  24  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  25  * SUCH DAMAGE.
  26  */
  27
  28 #include <sys/cdefs.h>
  29 __KERNEL_RCSID(0, "$NetBSD: com_mainbus.c,v 1.16 2008/03/22 18:32:20 tsutsui Exp $");
  30
  31 #include <sys/param.h>
  32 #include <sys/systm.h>
  33 #include <sys/device.h>
  34 #include <sys/termios.h>
  35
  36 #include <machine/autoconf.h>
  37 #include <machine/intr.h>
  38 #include <machine/bus.h>
  39
  40 #include <dev/ic/comreg.h>
  41 #include <dev/ic/comvar.h>
  42
  43 #include <cobalt/cobalt/console.h>
  44 #include <cobalt/dev/com_mainbusvar.h>
  45
  46 struct com_mainbus_softc {
  47         struct com_softc sc_com;
  48         void *sc_ih;
  49 };
  50
  51 #define COM_MAINBUS_FREQ        (COM_FREQ * 10)
  52 #define CONMODE ((TTYDEF_CFLAG & ~(CSIZE | CSTOPB | PARENB)) | CS8) /* 8N1 */
  53
  54 static int      com_mainbus_probe(device_t, cfdata_t , void *);
  55 static void     com_mainbus_attach(device_t, device_t, void *);
  56
  57 CFATTACH_DECL_NEW(com_mainbus, sizeof(struct com_mainbus_softc),
  58     com_mainbus_probe, com_mainbus_attach, NULL, NULL);
  59
  60 int
  61 com_mainbus_probe(device_t parent, cfdata_t match, void *aux)
  62 {
  63
  64         switch (cobalt_id) {
  65         case COBALT_ID_RAQ:
  66         case COBALT_ID_QUBE2:
  67         case COBALT_ID_RAQ2:
  68                 return 1;
  69         }
  70
  71         return 0;
  72 }
  73
  74 void
  75 com_mainbus_attach(device_t parent, device_t self, void *aux)
  76 {
  77         struct com_mainbus_softc *msc = device_private(self);
  78         struct com_softc *sc = &msc->sc_com;
  79         struct mainbus_attach_args *maa = aux;
  80         bus_space_handle_t      ioh;
  81
  82         sc->sc_dev = self;
  83         if (!com_is_console(maa->ma_iot, maa->ma_addr, &ioh) &&
  84             bus_space_map(maa->ma_iot, maa->ma_addr, COM_NPORTS, 0, &ioh)) {
  85                 aprint_error(": can't map i/o space\n");
  86                 return;
  87         }
  88         COM_INIT_REGS(sc->sc_regs, maa->ma_iot, ioh, maa->ma_addr);
  89
  90         sc->sc_frequency = COM_MAINBUS_FREQ;
  91
  92         com_attach_subr(sc);
  93
  94         cpu_intr_establish(maa->ma_level, IPL_SERIAL, comintr, sc);
  95
  96         return;
  97 }
  98
  99 void
 100 com_mainbus_cnprobe(struct consdev *cn)
 101 {
 102
 103         cn->cn_pri = (console_present != 0 && cobalt_id != COBALT_ID_QUBE2700)
 104             ? CN_NORMAL : CN_DEAD;
 105 }
 106
 107 void
 108 com_mainbus_cninit(struct consdev *cn)
 109 {
 110
 111         comcnattach(0, COM_BASE, 115200, COM_MAINBUS_FREQ, COM_TYPE_NORMAL,
 112             CONMODE);
 113 }