sys/arch/xen/x86/consinit.c

   1 /*      $NetBSD: consinit.c,v 1.12 2009/03/16 06:17:20 cegger Exp $     */
   2 /*      NetBSD: consinit.c,v 1.4 2004/03/13 17:31:34 bjh21 Exp  */
   3
   4 /*
   5  * Copyright (c) 1998
   6  *      Matthias Drochner.  All rights reserved.
   7  *
   8  * Redistribution and use in source and binary forms, with or without
   9  * modification, are permitted provided that the following conditions
  10  * are met:
  11  * 1. Redistributions of source code must retain the above copyright
  12  *    notice, this list of conditions and the following disclaimer.
  13  * 2. Redistributions in binary form must reproduce the above copyright
  14  *    notice, this list of conditions and the following disclaimer in the
  15  *    documentation and/or other materials provided with the distribution.
  16  *
  17  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
  18  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
  19  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
  20  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
  21  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
  22  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  23  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  24  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  25  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
  26  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  27  *
  28  */
  29
  30 #include <sys/cdefs.h>
  31 __KERNEL_RCSID(0, "$NetBSD: consinit.c,v 1.12 2009/03/16 06:17:20 cegger Exp $");
  32
  33 #include "opt_kgdb.h"
  34
  35 #include <sys/param.h>
  36 #include <sys/systm.h>
  37 #include <sys/device.h>
  38 #include <machine/bus.h>
  39 #include <machine/bootinfo.h>
  40
  41 #include "xencons.h"
  42 #include "vga.h"
  43 #include "ega.h"
  44 #include "pcdisplay.h"
  45 #if (NVGA > 0) || (NEGA > 0) || (NPCDISPLAY > 0)
  46 #include <dev/ic/mc6845reg.h>
  47 #include <dev/ic/pcdisplayvar.h>
  48 #if (NVGA > 0)
  49 #include <dev/ic/vgareg.h>
  50 #include <dev/ic/vgavar.h>
  51 #endif
  52 #if (NEGA > 0)
  53 #include <dev/isa/egavar.h>
  54 #endif
  55 #if (NPCDISPLAY > 0)
  56 #include <dev/isa/pcdisplayvar.h>
  57 #endif
  58 #endif
  59
  60 #include "pckbc.h"
  61 #if (NPCKBC > 0)
  62 #include <dev/isa/isareg.h>
  63 #include <dev/ic/i8042reg.h>
  64 #include <dev/ic/pckbcvar.h>
  65 #endif
  66 #include "pckbd.h" /* for pckbc_machdep_cnattach */
  67
  68 #include "ukbd.h"
  69 #if (NUKBD > 0)
  70 #include <dev/usb/ukbdvar.h>
  71 #endif
  72
  73 #include "opt_xen.h"
  74 #if (XEN > 0)
  75 #include <xen/xen.h>
  76 #include <dev/pckbport/pckbportvar.h>
  77 #include <xen/hypervisor.h>
  78 #endif
  79
  80 #include "com.h"
  81 #if (NCOM > 0)
  82 #include <sys/termios.h>
  83 #include <dev/ic/comreg.h>
  84 #include <dev/ic/comvar.h>
  85 #endif
  86
  87 #ifndef CONSDEVNAME
  88 #define CONSDEVNAME "pc"
  89 #endif
  90
  91 #if (NCOM > 0)
  92 #ifndef CONADDR
  93 #define CONADDR 0x3f8
  94 #endif
  95 #ifndef CONSPEED
  96 #define CONSPEED TTYDEF_SPEED
  97 #endif
  98 #ifndef CONMODE
  99 #define CONMODE ((TTYDEF_CFLAG & ~(CSIZE | CSTOPB | PARENB)) | CS8) /* 8N1 */
 100 #endif
 101 int comcnmode = CONMODE;
 102 #endif /* NCOM */
 103
 104 const struct btinfo_console default_consinfo = {
 105         {0, 0},
 106         CONSDEVNAME,
 107 #if (NCOM > 0)
 108         CONADDR, CONSPEED
 109 #else
 110         0, 0
 111 #endif
 112 };
 113
 114 #ifdef KGDB
 115 #ifndef KGDB_DEVNAME
 116 #define KGDB_DEVNAME "com"
 117 #endif
 118 const char kgdb_devname[] = KGDB_DEVNAME;
 119
 120 #if (NCOM > 0)
 121 #ifndef KGDB_DEVADDR
 122 #define KGDB_DEVADDR 0x3f8
 123 #endif
 124 int comkgdbaddr = KGDB_DEVADDR;
 125 #ifndef KGDB_DEVRATE
 126 #define KGDB_DEVRATE TTYDEF_SPEED
 127 #endif
 128 int comkgdbrate = KGDB_DEVRATE;
 129 #ifndef KGDB_DEVMODE
 130 #define KGDB_DEVMODE ((TTYDEF_CFLAG & ~(CSIZE | CSTOPB | PARENB)) | CS8) /* 8N1 */
 131 #endif
 132 int comkgdbmode = KGDB_DEVMODE;
 133 #endif /* NCOM */
 134
 135 #endif /* KGDB */
 136
 137 /*
 138  * consinit:
 139  * initialize the system console.
 140  * XXX - shouldn't deal with this initted thing, but then,
 141  * it shouldn't be called from init386 either.
 142  */
 143 void
 144 consinit(void)
 145 {
 146         static int initted = 0;
 147         union xen_cmdline_parseinfo xcp;
 148
 149         if (initted) {
 150                 return;
 151         }
 152         initted = 1;
 153         xen_parse_cmdline(XEN_PARSE_CONSOLE, &xcp);
 154
 155 #if (NVGA > 0)
 156         if (xendomain_is_privileged()) {
 157 #ifdef CONS_OVERRIDE
 158                 if (strcmp(default_consinfo.devname, "tty0") == 0 ||
 159                     strcmp(default_consinfo.devname, "pc") == 0) {
 160 #else
 161                 if (strcmp(xcp.xcp_console, "tty0") == 0 || /* linux name */
 162                     strcmp(xcp.xcp_console, "pc") == 0) { /* NetBSD name */
 163 #endif /* CONS_OVERRIDE */
 164                         int error;
 165                         vga_cnattach(X86_BUS_SPACE_IO, X86_BUS_SPACE_MEM,
 166                             -1, 1);
 167                         error = ENODEV;
 168 #if (NPCKBC > 0)
 169                         error = pckbc_cnattach(X86_BUS_SPACE_IO, IO_KBD, KBCMDP,
 170                             PCKBC_KBD_SLOT);
 171 #endif
 172 #if (NUKBD > 0)
 173                         if (error)
 174                                 error = ukbd_cnattach();
 175 #endif
 176                         if (error)
 177                                 printf("WARNING: no console keyboard, "
 178                                     "error=%d\n", error);
 179                         return;
 180                 }
 181         }
 182 #endif /* NVGA */
 183 #if NXENCONS > 0
 184         xenconscn_attach();
 185         return;
 186 #endif /* NXENCONS */
 187         panic("consinit: no console");
 188 }
 189
 190 #ifdef KGDB
 191 void
 192 kgdb_port_init(void)
 193 {
 194 #if (NCOM > 0)
 195         if(!strcmp(kgdb_devname, "com")) {
 196                 bus_space_tag_t tag = X86_BUS_SPACE_IO;
 197
 198                 com_kgdb_attach(tag, comkgdbaddr, comkgdbrate, COM_FREQ,
 199                     COM_TYPE_NORMAL, comkgdbmode);
 200         }
 201 #endif
 202 }
 203 #endif