sys/arch/mmeye/dev/com_mainbus.c

   1 /*      $NetBSD: com_mainbus.c,v 1.8 2008/03/14 15:09:10 cube Exp $     */
   2
   3 /*-
   4  * Copyright (c) 2002 The NetBSD Foundation, Inc.
   5  * All rights reserved.
   6  *
   7  * Redistribution and use in source and binary forms, with or without
   8  * modification, are permitted provided that the following conditions
   9  * are met:
  10  * 1. Redistributions of source code must retain the above copyright
  11  *    notice, this list of conditions and the following disclaimer.
  12  * 2. Redistributions in binary form must reproduce the above copyright
  13  *    notice, this list of conditions and the following disclaimer in the
  14  *    documentation and/or other materials provided with the distribution.
  15  *
  16  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
  17  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
  18  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
  19  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
  20  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
  21  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
  22  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
  23  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
  24  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
  25  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
  26  * POSSIBILITY OF SUCH DAMAGE.
  27  */
  28
  29 #include <sys/cdefs.h>
  30 __KERNEL_RCSID(0, "$NetBSD: com_mainbus.c,v 1.8 2008/03/14 15:09:10 cube Exp $");
  31
  32 #include <sys/param.h>
  33 #include <sys/systm.h>
  34 #include <sys/device.h>
  35
  36 #include <sys/termios.h>
  37 #include <dev/cons.h>
  38 #include <sys/conf.h>
  39
  40 #include <machine/bus.h>
  41 #include <machine/intr.h>
  42 #include <machine/autoconf.h>
  43 #include <machine/mmeye.h>
  44
  45 #include <dev/ic/comvar.h>
  46 #include <dev/ic/comreg.h>
  47
  48 #ifndef COMCN_SPEED
  49 #define COMCN_SPEED     19200
  50 #endif
  51 #ifndef CONADDR
  52 #define CONADDR         0xa4000000
  53 #endif
  54 #ifndef CONMODE
  55 #define CONMODE ((TTYDEF_CFLAG & ~(CSIZE | CSTOPB | PARENB)) | CS8) /* 8N1 */
  56 #endif
  57
  58 struct com_mainbus_softc {
  59         struct  com_softc sc_com;       /* real "com" softc */
  60 };
  61
  62 int com_mainbus_match(device_t, cfdata_t , void *);
  63 void com_mainbus_attach(device_t, device_t, void *);
  64 void comcnprobe(struct consdev *);
  65 void comcninit(struct consdev *);
  66
  67 CFATTACH_DECL_NEW(com_mainbus, sizeof(struct com_mainbus_softc),
  68     com_mainbus_match, com_mainbus_attach, NULL, NULL);
  69
  70 int
  71 com_mainbus_match(device_t parent, cfdata_t match, void *aux)
  72 {
  73         extern struct cfdriver com_cd;
  74         struct mainbus_attach_args *ma = aux;
  75
  76         if (strcmp(ma->ma_name, com_cd.cd_name) == 0)
  77                 return (1);
  78
  79         return (0);
  80 }
  81
  82 void
  83 com_mainbus_attach(device_t parent, device_t self, void *aux)
  84 {
  85         struct mainbus_attach_args *ma = aux;
  86         struct com_mainbus_softc *sc = device_private(self);
  87         struct com_softc *csc = &sc->sc_com;
  88
  89         csc->sc_dev = self;
  90         csc->sc_frequency = COM_FREQ;
  91         COM_INIT_REGS(csc->sc_regs, 0, ma->ma_addr1, 0);
  92
  93         /* sanity check */
  94         if (!comprobe1(0, ma->ma_addr1)) {
  95                 aprint_error(": device problem. don't attach.\n");
  96                 return;
  97         }
  98
  99         com_attach_subr(csc);
 100
 101         mmeye_intr_establish(ma->ma_irq1, IST_LEVEL, IPL_SERIAL, comintr, sc);
 102 }
 103
 104 void
 105 comcnprobe(struct consdev *cp)
 106 {
 107
 108 #ifdef  COMCONSOLE
 109         cp->cn_pri = CN_REMOTE; /* Force a serial port console */
 110 #else
 111         cp->cn_pri = CN_NORMAL;
 112 #endif
 113 }
 114
 115 void
 116 comcninit(struct consdev *cp)
 117 {
 118
 119         comcnattach(0, CONADDR, COMCN_SPEED, COM_FREQ, COM_TYPE_NORMAL,
 120             CONMODE);
 121 }