xref: /netbsd-src/sys/arch/xen/x86/consinit.c (revision 4a96dd4fc2b02adf9af17780aaa72447a29ac609)
1*4a96dd4fSbouyer /*	$NetBSD: consinit.c,v 1.18 2023/10/17 12:07:42 bouyer Exp $	*/
2f5315152Scl /*	NetBSD: consinit.c,v 1.4 2004/03/13 17:31:34 bjh21 Exp 	*/
341d325dcScl 
441d325dcScl /*
541d325dcScl  * Copyright (c) 1998
641d325dcScl  *	Matthias Drochner.  All rights reserved.
741d325dcScl  *
841d325dcScl  * Redistribution and use in source and binary forms, with or without
941d325dcScl  * modification, are permitted provided that the following conditions
1041d325dcScl  * are met:
1141d325dcScl  * 1. Redistributions of source code must retain the above copyright
1241d325dcScl  *    notice, this list of conditions and the following disclaimer.
1341d325dcScl  * 2. Redistributions in binary form must reproduce the above copyright
1441d325dcScl  *    notice, this list of conditions and the following disclaimer in the
1541d325dcScl  *    documentation and/or other materials provided with the distribution.
1641d325dcScl  *
1741d325dcScl  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
1841d325dcScl  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
1941d325dcScl  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
2041d325dcScl  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
2141d325dcScl  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
2241d325dcScl  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
2341d325dcScl  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
2441d325dcScl  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
2541d325dcScl  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
2641d325dcScl  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
2741d325dcScl  *
2841d325dcScl  */
2941d325dcScl 
3041d325dcScl #include <sys/cdefs.h>
31*4a96dd4fSbouyer __KERNEL_RCSID(0, "$NetBSD: consinit.c,v 1.18 2023/10/17 12:07:42 bouyer Exp $");
3241d325dcScl 
3341d325dcScl #include "opt_kgdb.h"
3441d325dcScl 
3541d325dcScl #include <sys/param.h>
3641d325dcScl #include <sys/systm.h>
3741d325dcScl #include <sys/device.h>
38e265f67bSdyoung #include <sys/bus.h>
3941d325dcScl #include <machine/bootinfo.h>
40*4a96dd4fSbouyer #include <arch/x86/include/genfb_machdep.h>
4141d325dcScl 
42e9666f30Sbouyer #include "xencons.h"
4341d325dcScl #include "vga.h"
4441d325dcScl #include "ega.h"
4541d325dcScl #include "pcdisplay.h"
46*4a96dd4fSbouyer #include "genfb.h"
4741d325dcScl #if (NVGA > 0) || (NEGA > 0) || (NPCDISPLAY > 0)
4841d325dcScl #include <dev/ic/mc6845reg.h>
4941d325dcScl #include <dev/ic/pcdisplayvar.h>
5041d325dcScl #if (NVGA > 0)
5141d325dcScl #include <dev/ic/vgareg.h>
5241d325dcScl #include <dev/ic/vgavar.h>
5341d325dcScl #endif
5441d325dcScl #if (NEGA > 0)
5541d325dcScl #include <dev/isa/egavar.h>
5641d325dcScl #endif
5741d325dcScl #if (NPCDISPLAY > 0)
5841d325dcScl #include <dev/isa/pcdisplayvar.h>
5941d325dcScl #endif
6041d325dcScl #endif
6141d325dcScl 
6241d325dcScl #include "pckbc.h"
6341d325dcScl #if (NPCKBC > 0)
6441d325dcScl #include <dev/isa/isareg.h>
6541d325dcScl #include <dev/ic/i8042reg.h>
6641d325dcScl #include <dev/ic/pckbcvar.h>
6741d325dcScl #endif
6841d325dcScl #include "pckbd.h" /* for pckbc_machdep_cnattach */
6941d325dcScl 
7015ce68ccSbouyer #include "ukbd.h"
7115ce68ccSbouyer #if (NUKBD > 0)
7215ce68ccSbouyer #include <dev/usb/ukbdvar.h>
7315ce68ccSbouyer #endif
7415ce68ccSbouyer 
75*4a96dd4fSbouyer #if (NGENFB > 0)
76*4a96dd4fSbouyer #include <dev/wsfb/genfbvar.h>
77*4a96dd4fSbouyer #endif
78*4a96dd4fSbouyer 
7941d325dcScl #include "opt_xen.h"
8041d325dcScl #if (XEN > 0)
814e541343Sbouyer #include <xen/xen.h>
82f5315152Scl #include <dev/pckbport/pckbportvar.h>
834e541343Sbouyer #include <xen/hypervisor.h>
8487cc9ae9Smrg #include "xen_def_cons.h"
8541d325dcScl #endif
8641d325dcScl 
8741d325dcScl #include "com.h"
8841d325dcScl #if (NCOM > 0)
8941d325dcScl #include <sys/termios.h>
9041d325dcScl #include <dev/ic/comreg.h>
9141d325dcScl #include <dev/ic/comvar.h>
9241d325dcScl #endif
9341d325dcScl 
9441d325dcScl #ifndef CONSDEVNAME
9541d325dcScl #define CONSDEVNAME "pc"
9641d325dcScl #endif
9741d325dcScl 
9841d325dcScl #if (NCOM > 0)
9941d325dcScl #ifndef CONADDR
10041d325dcScl #define CONADDR 0x3f8
10141d325dcScl #endif
10241d325dcScl #ifndef CONSPEED
10341d325dcScl #define CONSPEED TTYDEF_SPEED
10441d325dcScl #endif
10541d325dcScl #ifndef CONMODE
10641d325dcScl #define CONMODE ((TTYDEF_CFLAG & ~(CSIZE | CSTOPB | PARENB)) | CS8) /* 8N1 */
10741d325dcScl #endif
10841d325dcScl int comcnmode = CONMODE;
10941d325dcScl #endif /* NCOM */
11041d325dcScl 
11141d325dcScl const struct btinfo_console default_consinfo = {
11241d325dcScl 	{0, 0},
11341d325dcScl 	CONSDEVNAME,
11441d325dcScl #if (NCOM > 0)
11541d325dcScl 	CONADDR, CONSPEED
11641d325dcScl #else
11741d325dcScl 	0, 0
11841d325dcScl #endif
11941d325dcScl };
12041d325dcScl 
12141d325dcScl #ifdef KGDB
12241d325dcScl #ifndef KGDB_DEVNAME
12341d325dcScl #define KGDB_DEVNAME "com"
12441d325dcScl #endif
12541d325dcScl const char kgdb_devname[] = KGDB_DEVNAME;
12641d325dcScl 
12741d325dcScl #if (NCOM > 0)
12841d325dcScl #ifndef KGDB_DEVADDR
12941d325dcScl #define KGDB_DEVADDR 0x3f8
13041d325dcScl #endif
13141d325dcScl int comkgdbaddr = KGDB_DEVADDR;
13241d325dcScl #ifndef KGDB_DEVRATE
13341d325dcScl #define KGDB_DEVRATE TTYDEF_SPEED
13441d325dcScl #endif
13541d325dcScl int comkgdbrate = KGDB_DEVRATE;
13641d325dcScl #ifndef KGDB_DEVMODE
13741d325dcScl #define KGDB_DEVMODE ((TTYDEF_CFLAG & ~(CSIZE | CSTOPB | PARENB)) | CS8) /* 8N1 */
13841d325dcScl #endif
13941d325dcScl int comkgdbmode = KGDB_DEVMODE;
14041d325dcScl #endif /* NCOM */
14141d325dcScl 
14241d325dcScl #endif /* KGDB */
14341d325dcScl 
14441d325dcScl /*
14541d325dcScl  * consinit:
14641d325dcScl  * initialize the system console.
14741d325dcScl  * XXX - shouldn't deal with this initted thing, but then,
14841d325dcScl  * it shouldn't be called from init386 either.
14941d325dcScl  */
15041d325dcScl void
consinit(void)15196276685Scegger consinit(void)
15241d325dcScl {
153e9666f30Sbouyer 	static int initted = 0;
154f5315152Scl 	union xen_cmdline_parseinfo xcp;
155*4a96dd4fSbouyer #if (NGENFB > 0)
156*4a96dd4fSbouyer         const struct btinfo_framebuffer *fbinfo = NULL;
157*4a96dd4fSbouyer #endif
158*4a96dd4fSbouyer 
159f5315152Scl 
160e9666f30Sbouyer 	if (initted) {
161e9666f30Sbouyer 		return;
162e9666f30Sbouyer 	}
163*4a96dd4fSbouyer 
164*4a96dd4fSbouyer 	xen_early_console();
165*4a96dd4fSbouyer 
166*4a96dd4fSbouyer #if (NGENFB > 0) && defined(DOM0OPS)
167*4a96dd4fSbouyer 	if (xendomain_is_dom0())
168*4a96dd4fSbouyer 		fbinfo = xen_genfb_getbtinfo();
169*4a96dd4fSbouyer #endif
170*4a96dd4fSbouyer 
171e9666f30Sbouyer 	initted = 1;
172f5315152Scl 	xen_parse_cmdline(XEN_PARSE_CONSOLE, &xcp);
173f5315152Scl 
174*4a96dd4fSbouyer #if (NVGA > 0) || (NGENFB > 0)
1752de31871Scegger 	if (xendomain_is_privileged()) {
176e9666f30Sbouyer #ifdef CONS_OVERRIDE
177e9666f30Sbouyer 		if (strcmp(default_consinfo.devname, "tty0") == 0 ||
1788f9ec903Sbouyer 		    strcmp(default_consinfo.devname, "pc") == 0) {
179e9666f30Sbouyer #else
180e9666f30Sbouyer 		if (strcmp(xcp.xcp_console, "tty0") == 0 || /* linux name */
181e9666f30Sbouyer 		    strcmp(xcp.xcp_console, "pc") == 0) { /* NetBSD name */
182e9666f30Sbouyer #endif /* CONS_OVERRIDE */
18315ce68ccSbouyer 			int error;
184*4a96dd4fSbouyer 
185*4a96dd4fSbouyer #if (NGENFB > 0)
186*4a96dd4fSbouyer 			if (fbinfo && fbinfo->physaddr > 0) {
187*4a96dd4fSbouyer 				if (x86_genfb_cnattach() == -1) {
188*4a96dd4fSbouyer 					initted = 0; /* defer */
189*4a96dd4fSbouyer 					return;
190*4a96dd4fSbouyer 				}
191*4a96dd4fSbouyer 				genfb_cnattach();
192*4a96dd4fSbouyer 				goto dokbd;
193*4a96dd4fSbouyer 			} else {
194*4a96dd4fSbouyer 				genfb_disable();
195*4a96dd4fSbouyer 			}
196*4a96dd4fSbouyer #endif
19730b2d68dSdyoung 			vga_cnattach(x86_bus_space_io, x86_bus_space_mem,
198e9666f30Sbouyer 			    -1, 1);
199*4a96dd4fSbouyer #if (NGENFB > 0)
200*4a96dd4fSbouyer dokbd:
201*4a96dd4fSbouyer #endif
20215ce68ccSbouyer 			error = ENODEV;
203*4a96dd4fSbouyer 
20415ce68ccSbouyer #if (NPCKBC > 0)
20530b2d68dSdyoung 			error = pckbc_cnattach(x86_bus_space_io, IO_KBD, KBCMDP,
2064be6ce2eSjdc 			    PCKBC_KBD_SLOT, 0);
20715ce68ccSbouyer #endif
20815ce68ccSbouyer #if (NUKBD > 0)
20915ce68ccSbouyer 			if (error)
21015ce68ccSbouyer 				error = ukbd_cnattach();
21115ce68ccSbouyer #endif
21215ce68ccSbouyer 			if (error)
21315ce68ccSbouyer 				printf("WARNING: no console keyboard, "
21415ce68ccSbouyer 				    "error=%d\n", error);
21541d325dcScl 			return;
21641d325dcScl 		}
21741d325dcScl 	}
218e9666f30Sbouyer #endif /* NVGA */
219e9666f30Sbouyer #if NXENCONS > 0
220e9666f30Sbouyer 	xenconscn_attach();
221e9666f30Sbouyer 	return;
222e9666f30Sbouyer #endif /* NXENCONS */
223e9666f30Sbouyer 	panic("consinit: no console");
22441d325dcScl }
22541d325dcScl 
22641d325dcScl #ifdef KGDB
22741d325dcScl void
228df7f595eScegger kgdb_port_init(void)
22941d325dcScl {
23041d325dcScl #if (NCOM > 0)
23141d325dcScl 	if(!strcmp(kgdb_devname, "com")) {
23230b2d68dSdyoung 		bus_space_tag_t tag = x86_bus_space_io;
23341d325dcScl 
23441d325dcScl 		com_kgdb_attach(tag, comkgdbaddr, comkgdbrate, COM_FREQ,
23541d325dcScl 		    COM_TYPE_NORMAL, comkgdbmode);
23641d325dcScl 	}
23741d325dcScl #endif
23841d325dcScl }
23941d325dcScl #endif
240