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consinit.c revision 1.1
      1 /*	$NetBSD: consinit.c,v 1.1 2004/03/11 21:44:08 cl Exp $	*/
      2 /*	NetBSD: consinit.c,v 1.3 2003/06/14 17:01:15 thorpej 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 1.1 2004/03/11 21:44:08 cl 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 <machine/xen.h>
     77 #endif
     78 
     79 #include "com.h"
     80 #if (NCOM > 0)
     81 #include <sys/termios.h>
     82 #include <dev/ic/comreg.h>
     83 #include <dev/ic/comvar.h>
     84 #endif
     85 
     86 #include "ukbd.h"
     87 #if (NUKBD > 0)
     88 #include <dev/usb/ukbdvar.h>
     89 #endif
     90 
     91 #ifndef CONSDEVNAME
     92 #define CONSDEVNAME "pc"
     93 #endif
     94 
     95 #if (NCOM > 0)
     96 #ifndef CONADDR
     97 #define CONADDR 0x3f8
     98 #endif
     99 #ifndef CONSPEED
    100 #define CONSPEED TTYDEF_SPEED
    101 #endif
    102 #ifndef CONMODE
    103 #define CONMODE ((TTYDEF_CFLAG & ~(CSIZE | CSTOPB | PARENB)) | CS8) /* 8N1 */
    104 #endif
    105 int comcnmode = CONMODE;
    106 #endif /* NCOM */
    107 
    108 const struct btinfo_console default_consinfo = {
    109 	{0, 0},
    110 	CONSDEVNAME,
    111 #if (NCOM > 0)
    112 	CONADDR, CONSPEED
    113 #else
    114 	0, 0
    115 #endif
    116 };
    117 
    118 #ifdef KGDB
    119 #ifndef KGDB_DEVNAME
    120 #define KGDB_DEVNAME "com"
    121 #endif
    122 const char kgdb_devname[] = KGDB_DEVNAME;
    123 
    124 #if (NCOM > 0)
    125 #ifndef KGDB_DEVADDR
    126 #define KGDB_DEVADDR 0x3f8
    127 #endif
    128 int comkgdbaddr = KGDB_DEVADDR;
    129 #ifndef KGDB_DEVRATE
    130 #define KGDB_DEVRATE TTYDEF_SPEED
    131 #endif
    132 int comkgdbrate = KGDB_DEVRATE;
    133 #ifndef KGDB_DEVMODE
    134 #define KGDB_DEVMODE ((TTYDEF_CFLAG & ~(CSIZE | CSTOPB | PARENB)) | CS8) /* 8N1 */
    135 #endif
    136 int comkgdbmode = KGDB_DEVMODE;
    137 #endif /* NCOM */
    138 
    139 #endif /* KGDB */
    140 
    141 /*
    142  * consinit:
    143  * initialize the system console.
    144  * XXX - shouldn't deal with this initted thing, but then,
    145  * it shouldn't be called from init386 either.
    146  */
    147 void
    148 consinit()
    149 {
    150 	const struct btinfo_console *consinfo;
    151 	static int initted;
    152 
    153 	if (initted)
    154 		return;
    155 	initted = 1;
    156 
    157 #ifndef CONS_OVERRIDE
    158 	consinfo = lookup_bootinfo(BTINFO_CONSOLE);
    159 	if (!consinfo)
    160 #endif
    161 		consinfo = &default_consinfo;
    162 
    163 #if (NPC > 0) || (NVGA > 0) || (NEGA > 0) || (NPCDISPLAY > 0)
    164 	if (!strcmp(consinfo->devname, "pc")) {
    165 #if (NVGA > 0)
    166 		if (!vga_cnattach(X86_BUS_SPACE_IO, X86_BUS_SPACE_MEM,
    167 				  -1, 1))
    168 			goto dokbd;
    169 #endif
    170 #if (NEGA > 0)
    171 		if (!ega_cnattach(X86_BUS_SPACE_IO, X86_BUS_SPACE_MEM))
    172 			goto dokbd;
    173 #endif
    174 #if (NPCDISPLAY > 0)
    175 		if (!pcdisplay_cnattach(X86_BUS_SPACE_IO, X86_BUS_SPACE_MEM))
    176 			goto dokbd;
    177 #endif
    178 #if (NPC > 0)
    179 		pccnattach();
    180 #endif
    181 		if (0) goto dokbd; /* XXX stupid gcc */
    182 dokbd:
    183 #if (NPCKBC > 0)
    184 		pckbc_cnattach(X86_BUS_SPACE_IO, IO_KBD, KBCMDP,
    185 		    PCKBC_KBD_SLOT);
    186 #endif
    187 #if NPCKBC == 0 && NUKBD > 0
    188 		ukbd_cnattach();
    189 #endif
    190 		return;
    191 	}
    192 #endif /* PC | VT | VGA | PCDISPLAY */
    193 #if (NCOM > 0)
    194 	if (!strcmp(consinfo->devname, "com")) {
    195 		bus_space_tag_t tag = X86_BUS_SPACE_IO;
    196 
    197 		if (comcnattach(tag, consinfo->addr, consinfo->speed,
    198 				COM_FREQ, COM_TYPE_NORMAL, comcnmode))
    199 			panic("can't init serial console @%x", consinfo->addr);
    200 
    201 		return;
    202 	}
    203 #endif
    204 #if (XEN > 0)
    205 	if (!strcmp(consinfo->devname, "xen")) {
    206 		xencn_attach();
    207 		printf("NetBSD Xen console attached.\n");
    208 		return;
    209 	}
    210 #endif
    211 	panic("invalid console device %s", consinfo->devname);
    212 }
    213 
    214 #if (NPCKBC > 0) && (NPCKBD == 0)
    215 /*
    216  * glue code to support old console code with the
    217  * mi keyboard controller driver
    218  */
    219 int
    220 pckbc_machdep_cnattach(kbctag, kbcslot)
    221 	pckbc_tag_t kbctag;
    222 	pckbc_slot_t kbcslot;
    223 {
    224 #if (NPC > 0) && (NPCCONSKBD > 0)
    225 	return (pcconskbd_cnattach(kbctag, kbcslot));
    226 #else
    227 	return (ENXIO);
    228 #endif
    229 }
    230 #endif
    231 
    232 #ifdef KGDB
    233 void
    234 kgdb_port_init()
    235 {
    236 #if (NCOM > 0)
    237 	if(!strcmp(kgdb_devname, "com")) {
    238 		bus_space_tag_t tag = X86_BUS_SPACE_IO;
    239 
    240 		com_kgdb_attach(tag, comkgdbaddr, comkgdbrate, COM_FREQ,
    241 		    COM_TYPE_NORMAL, comkgdbmode);
    242 	}
    243 #endif
    244 }
    245 #endif
    246