consinit.c revision 1.3.2.4
1 /* $NetBSD: consinit.c,v 1.3.2.4 2004/09/21 13:24:45 skrll 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 1.3.2.4 2004/09/21 13:24:45 skrll 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 "vga.h" 42 #include "ega.h" 43 #include "pcdisplay.h" 44 #if (NVGA > 0) || (NEGA > 0) || (NPCDISPLAY > 0) 45 #include <dev/ic/mc6845reg.h> 46 #include <dev/ic/pcdisplayvar.h> 47 #if (NVGA > 0) 48 #include <dev/ic/vgareg.h> 49 #include <dev/ic/vgavar.h> 50 #endif 51 #if (NEGA > 0) 52 #include <dev/isa/egavar.h> 53 #endif 54 #if (NPCDISPLAY > 0) 55 #include <dev/isa/pcdisplayvar.h> 56 #endif 57 #endif 58 59 #include "pckbc.h" 60 #if (NPCKBC > 0) 61 #include <dev/isa/isareg.h> 62 #include <dev/ic/i8042reg.h> 63 #include <dev/ic/pckbcvar.h> 64 #endif 65 #include "pckbd.h" /* for pckbc_machdep_cnattach */ 66 67 #ifndef __x86_64__ 68 #include "pc.h" 69 #endif 70 #if (NPC > 0) 71 #include <machine/pccons.h> 72 #endif 73 74 #include "opt_xen.h" 75 #if (XEN > 0) 76 #include "vga_xen.h" 77 #include "xenkbc.h" 78 #include <machine/xen.h> 79 #include <dev/pckbport/pckbportvar.h> 80 #include <machine/xenkbcvar.h> 81 #include <machine/vga_xenvar.h> 82 #include <machine/hypervisor.h> 83 #endif 84 85 #include "com.h" 86 #if (NCOM > 0) 87 #include <sys/termios.h> 88 #include <dev/ic/comreg.h> 89 #include <dev/ic/comvar.h> 90 #endif 91 92 #include "ukbd.h" 93 #if (NUKBD > 0) 94 #include <dev/usb/ukbdvar.h> 95 #endif 96 97 #ifndef CONSDEVNAME 98 #define CONSDEVNAME "pc" 99 #endif 100 101 #if (NCOM > 0) 102 #ifndef CONADDR 103 #define CONADDR 0x3f8 104 #endif 105 #ifndef CONSPEED 106 #define CONSPEED TTYDEF_SPEED 107 #endif 108 #ifndef CONMODE 109 #define CONMODE ((TTYDEF_CFLAG & ~(CSIZE | CSTOPB | PARENB)) | CS8) /* 8N1 */ 110 #endif 111 int comcnmode = CONMODE; 112 #endif /* NCOM */ 113 114 const struct btinfo_console default_consinfo = { 115 {0, 0}, 116 CONSDEVNAME, 117 #if (NCOM > 0) 118 CONADDR, CONSPEED 119 #else 120 0, 0 121 #endif 122 }; 123 124 #ifdef KGDB 125 #ifndef KGDB_DEVNAME 126 #define KGDB_DEVNAME "com" 127 #endif 128 const char kgdb_devname[] = KGDB_DEVNAME; 129 130 #if (NCOM > 0) 131 #ifndef KGDB_DEVADDR 132 #define KGDB_DEVADDR 0x3f8 133 #endif 134 int comkgdbaddr = KGDB_DEVADDR; 135 #ifndef KGDB_DEVRATE 136 #define KGDB_DEVRATE TTYDEF_SPEED 137 #endif 138 int comkgdbrate = KGDB_DEVRATE; 139 #ifndef KGDB_DEVMODE 140 #define KGDB_DEVMODE ((TTYDEF_CFLAG & ~(CSIZE | CSTOPB | PARENB)) | CS8) /* 8N1 */ 141 #endif 142 int comkgdbmode = KGDB_DEVMODE; 143 #endif /* NCOM */ 144 145 #endif /* KGDB */ 146 147 /* 148 * consinit: 149 * initialize the system console. 150 * XXX - shouldn't deal with this initted thing, but then, 151 * it shouldn't be called from init386 either. 152 */ 153 void 154 consinit() 155 { 156 const struct btinfo_console *consinfo; 157 static int initted; 158 159 if (initted) 160 return; 161 initted = 1; 162 163 #if (XEN > 0) 164 #if (NVGA_XEN > 0) && (NXENKBC > 0) 165 #ifndef CONS_OVERRIDE 166 if (xen_start_info.flags & SIF_CONSOLE) { 167 union xen_cmdline_parseinfo xcp; 168 169 xen_parse_cmdline(XEN_PARSE_CONSOLE, &xcp); 170 if (strcmp(xcp.xcp_console, "xencons") == 0) { 171 xenconscn_attach(); 172 return; 173 } 174 } 175 #endif 176 if ((xen_start_info.flags & SIF_CONSOLE) && 177 strcmp(default_consinfo.devname, "xencons") != 0) { 178 if ((xen_start_info.flags & SIF_PRIVILEGED) == 0) 179 panic("Console access without privileged status"); 180 181 vga_xen_cnattach(X86_BUS_SPACE_IO, X86_BUS_SPACE_MEM); 182 xenkbc_cnattach(PCKBPORT_KBD_SLOT); 183 return; 184 } 185 #endif 186 xenconscn_attach(); 187 return; 188 #endif 189 190 #ifndef CONS_OVERRIDE 191 consinfo = lookup_bootinfo(BTINFO_CONSOLE); 192 if (!consinfo) 193 #endif 194 consinfo = &default_consinfo; 195 196 #if (NPC > 0) || (NVGA > 0) || (NEGA > 0) || (NPCDISPLAY > 0) 197 if (!strcmp(consinfo->devname, "pc")) { 198 #if (NVGA > 0) 199 if (!vga_cnattach(X86_BUS_SPACE_IO, X86_BUS_SPACE_MEM, 200 -1, 1)) 201 goto dokbd; 202 #endif 203 #if (NEGA > 0) 204 if (!ega_cnattach(X86_BUS_SPACE_IO, X86_BUS_SPACE_MEM)) 205 goto dokbd; 206 #endif 207 #if (NPCDISPLAY > 0) 208 if (!pcdisplay_cnattach(X86_BUS_SPACE_IO, X86_BUS_SPACE_MEM)) 209 goto dokbd; 210 #endif 211 #if (NPC > 0) 212 pccnattach(); 213 #endif 214 if (0) goto dokbd; /* XXX stupid gcc */ 215 dokbd: 216 #if (NPCKBC > 0) 217 pckbc_cnattach(X86_BUS_SPACE_IO, IO_KBD, KBCMDP, 218 PCKBC_KBD_SLOT); 219 #endif 220 #if NPCKBC == 0 && NUKBD > 0 221 ukbd_cnattach(); 222 #endif 223 return; 224 } 225 #endif /* PC | VT | VGA | PCDISPLAY */ 226 #if (NCOM > 0) 227 if (!strcmp(consinfo->devname, "com")) { 228 bus_space_tag_t tag = X86_BUS_SPACE_IO; 229 230 if (comcnattach(tag, consinfo->addr, consinfo->speed, 231 COM_FREQ, COM_TYPE_NORMAL, comcnmode)) 232 panic("can't init serial console @%x", consinfo->addr); 233 234 return; 235 } 236 #endif 237 panic("invalid console device %s", consinfo->devname); 238 } 239 240 #if (NPCKBC > 0) && (NPCKBD == 0) 241 /* 242 * glue code to support old console code with the 243 * mi keyboard controller driver 244 */ 245 int 246 pckbport_machdep_cnattach(kbctag, kbcslot) 247 pckbport_tag_t kbctag; 248 pckbport_slot_t kbcslot; 249 { 250 #if (NPC > 0) && (NPCCONSKBD > 0) 251 return (pcconskbd_cnattach(kbctag, kbcslot)); 252 #else 253 return (ENXIO); 254 #endif 255 } 256 #endif 257 258 #ifdef KGDB 259 void 260 kgdb_port_init() 261 { 262 #if (NCOM > 0) 263 if(!strcmp(kgdb_devname, "com")) { 264 bus_space_tag_t tag = X86_BUS_SPACE_IO; 265 266 com_kgdb_attach(tag, comkgdbaddr, comkgdbrate, COM_FREQ, 267 COM_TYPE_NORMAL, comkgdbmode); 268 } 269 #endif 270 } 271 #endif 272
Indexes created Thu Oct 02 14:10:14 GMT 2025