| 1 | /* $NetBSD: consinit.c,v 1.16 2012/10/13 17:58:55 jdc 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 1.16 2012/10/13 17:58:55 jdc 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 <sys/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, 0); |
| 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 |
| 204 | |