Annotation of src/sys/arch/x86/x86/consinit.c, Revision 1.35
1.35 ! riastrad 1: /* $NetBSD: consinit.c,v 1.34 2021/10/07 12:52:27 msaitoh Exp $ */
1.1 fvdl 2:
3: /*
4: * Copyright (c) 1998
5: * Matthias Drochner. All rights reserved.
6: *
7: * Redistribution and use in source and binary forms, with or without
8: * modification, are permitted provided that the following conditions
9: * are met:
10: * 1. Redistributions of source code must retain the above copyright
11: * notice, this list of conditions and the following disclaimer.
12: * 2. Redistributions in binary form must reproduce the above copyright
13: * notice, this list of conditions and the following disclaimer in the
14: * documentation and/or other materials provided with the distribution.
15: *
16: * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
17: * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
18: * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
19: * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
20: * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
21: * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
22: * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
23: * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
24: * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
25: * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
26: *
27: */
28:
29: #include <sys/cdefs.h>
1.35 ! riastrad 30: __KERNEL_RCSID(0, "$NetBSD: consinit.c,v 1.34 2021/10/07 12:52:27 msaitoh Exp $");
1.1 fvdl 31:
32: #include "opt_kgdb.h"
1.25 msaitoh 33: #include "opt_puc.h"
1.33 bouyer 34: #include "opt_xen.h"
1.1 fvdl 35:
36: #include <sys/param.h>
37: #include <sys/systm.h>
38: #include <sys/device.h>
1.22 dyoung 39: #include <sys/bus.h>
1.29 nonaka 40: #include <sys/cpu.h>
1.1 fvdl 41: #include <machine/bootinfo.h>
1.17 jmcneill 42: #include <arch/x86/include/genfb_machdep.h>
1.1 fvdl 43:
1.28 is 44: #include <dev/cons.h>
45:
46: #include "nullcons.h"
1.16 jmcneill 47: #include "genfb.h"
1.1 fvdl 48: #include "vga.h"
49: #include "ega.h"
50: #include "pcdisplay.h"
1.25 msaitoh 51: #include "com_puc.h"
1.1 fvdl 52: #if (NVGA > 0) || (NEGA > 0) || (NPCDISPLAY > 0)
53: #include <dev/ic/mc6845reg.h>
54: #include <dev/ic/pcdisplayvar.h>
55: #if (NVGA > 0)
56: #include <dev/ic/vgareg.h>
57: #include <dev/ic/vgavar.h>
58: #endif
59: #if (NEGA > 0)
60: #include <dev/isa/egavar.h>
61: #endif
62: #if (NPCDISPLAY > 0)
63: #include <dev/isa/pcdisplayvar.h>
64: #endif
65: #endif
66:
67: #include "pckbc.h"
68: #if (NPCKBC > 0)
69: #include <dev/isa/isareg.h>
70: #include <dev/ic/i8042reg.h>
71: #include <dev/ic/pckbcvar.h>
1.4 bjh21 72: #include <dev/pckbport/pckbportvar.h>
1.1 fvdl 73: #endif
74: #include "pckbd.h" /* for pckbc_machdep_cnattach */
75:
1.16 jmcneill 76: #if (NGENFB > 0)
77: #include <dev/wsfb/genfbvar.h>
78: #endif
79:
1.1 fvdl 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
1.25 msaitoh 86: #if (NCOM_PUC > 0)
87: #include <dev/pci/puccn.h>
88: #endif
1.1 fvdl 89:
90: #include "ukbd.h"
91: #if (NUKBD > 0)
92: #include <dev/usb/ukbdvar.h>
93: #endif
94:
1.32 bouyer 95: #ifndef XENPV
1.31 nonaka 96: #include "hvkbd.h"
1.30 christos 97: #if NHVKBD > 0
1.29 nonaka 98: #include <dev/hyperv/hvkbdvar.h>
99: #endif
100: #endif
101:
1.33 bouyer 102: #ifdef XENPVHVM
103: #include <xen/xen.h>
104: #endif
105:
1.1 fvdl 106: #ifndef CONSDEVNAME
107: #define CONSDEVNAME "pc"
108: #endif
109:
110: #if (NCOM > 0)
111: #ifndef CONADDR
112: #define CONADDR 0x3f8
113: #endif
114: #ifndef CONSPEED
115: #define CONSPEED TTYDEF_SPEED
116: #endif
117: #ifndef CONMODE
118: #define CONMODE ((TTYDEF_CFLAG & ~(CSIZE | CSTOPB | PARENB)) | CS8) /* 8N1 */
119: #endif
120: int comcnmode = CONMODE;
121: #endif /* NCOM */
122:
123: const struct btinfo_console default_consinfo = {
124: {0, 0},
125: CONSDEVNAME,
126: #if (NCOM > 0)
127: CONADDR, CONSPEED
128: #else
129: 0, 0
130: #endif
131: };
132:
133: #ifdef KGDB
134: #ifndef KGDB_DEVNAME
135: #define KGDB_DEVNAME "com"
136: #endif
137: const char kgdb_devname[] = KGDB_DEVNAME;
138:
139: #if (NCOM > 0)
140: #ifndef KGDB_DEVADDR
141: #define KGDB_DEVADDR 0x3f8
142: #endif
143: int comkgdbaddr = KGDB_DEVADDR;
144: #ifndef KGDB_DEVRATE
145: #define KGDB_DEVRATE TTYDEF_SPEED
146: #endif
147: int comkgdbrate = KGDB_DEVRATE;
148: #ifndef KGDB_DEVMODE
149: #define KGDB_DEVMODE ((TTYDEF_CFLAG & ~(CSIZE | CSTOPB | PARENB)) | CS8) /* 8N1 */
150: #endif
151: int comkgdbmode = KGDB_DEVMODE;
152: #endif /* NCOM */
153:
154: #endif /* KGDB */
155:
156: /*
157: * consinit:
158: * initialize the system console.
159: * XXX - shouldn't deal with this initted thing, but then,
160: * it shouldn't be called from init386 either.
161: */
162: void
1.19 cegger 163: consinit(void)
1.1 fvdl 164: {
165: const struct btinfo_console *consinfo;
1.27 martin 166: #if (NGENFB > 0)
1.16 jmcneill 167: const struct btinfo_framebuffer *fbinfo;
1.27 martin 168: #endif
1.1 fvdl 169: static int initted;
1.26 taca 170: #if (NCOM > 0)
1.25 msaitoh 171: int rv;
1.26 taca 172: #endif
1.1 fvdl 173:
1.33 bouyer 174: #ifdef XENPVHVM
175: if (vm_guest == VM_GUEST_XENPVH) {
176: xen_pvh_consinit();
177: return;
178: }
179: #endif
1.1 fvdl 180: if (initted)
181: return;
182: initted = 1;
183:
184: #ifndef CONS_OVERRIDE
185: consinfo = lookup_bootinfo(BTINFO_CONSOLE);
186: if (!consinfo)
187: #endif
188: consinfo = &default_consinfo;
189:
1.27 martin 190: #if (NGENFB > 0)
1.16 jmcneill 191: fbinfo = lookup_bootinfo(BTINFO_FRAMEBUFFER);
1.27 martin 192: #endif
1.16 jmcneill 193:
1.1 fvdl 194: if (!strcmp(consinfo->devname, "pc")) {
1.6 augustss 195: int error;
1.16 jmcneill 196: #if (NGENFB > 0)
197: if (fbinfo && fbinfo->physaddr > 0) {
1.35 ! riastrad 198: /*
! 199: * If we have a framebuffer address, and
! 200: * x86_genfb_cnattach can map it, then
! 201: * genfb_cnattach causes genfb_is_console to
! 202: * later return true. device_pci_register will
! 203: * use this to set up the device properties for
! 204: * a PCI display-class device to notify it that
! 205: * it has been selected as the console.
! 206: */
1.17 jmcneill 207: if (x86_genfb_cnattach() == -1) {
208: initted = 0; /* defer */
209: return;
210: }
1.16 jmcneill 211: genfb_cnattach();
212: goto dokbd;
1.17 jmcneill 213: }
214: genfb_disable();
1.16 jmcneill 215: #endif
1.1 fvdl 216: #if (NVGA > 0)
1.21 dyoung 217: if (!vga_cnattach(x86_bus_space_io, x86_bus_space_mem,
1.1 fvdl 218: -1, 1))
219: goto dokbd;
220: #endif
221: #if (NEGA > 0)
1.21 dyoung 222: if (!ega_cnattach(x86_bus_space_io, x86_bus_space_mem))
1.1 fvdl 223: goto dokbd;
224: #endif
225: #if (NPCDISPLAY > 0)
1.21 dyoung 226: if (!pcdisplay_cnattach(x86_bus_space_io, x86_bus_space_mem))
1.1 fvdl 227: goto dokbd;
228: #endif
229: if (0) goto dokbd; /* XXX stupid gcc */
230: dokbd:
1.7 augustss 231: error = ENODEV;
1.1 fvdl 232: #if (NPCKBC > 0)
1.21 dyoung 233: error = pckbc_cnattach(x86_bus_space_io, IO_KBD, KBCMDP,
1.24 jdc 234: PCKBC_KBD_SLOT, 0);
1.1 fvdl 235: #endif
1.29 nonaka 236: #if (NHVKBD > 0)
237: if (error && vm_guest == VM_GUEST_HV)
238: error = hvkbd_cnattach();
239: #endif
1.5 augustss 240: #if (NUKBD > 0)
241: if (error)
1.7 augustss 242: error = ukbd_cnattach();
1.1 fvdl 243: #endif
1.7 augustss 244: if (error)
245: printf("WARNING: no console keyboard, error=%d\n",
246: error);
1.1 fvdl 247: return;
248: }
249: #if (NCOM > 0)
250: if (!strcmp(consinfo->devname, "com")) {
1.9 jmmv 251: int addr = consinfo->addr;
252: int speed = consinfo->speed;
1.1 fvdl 253:
1.25 msaitoh 254: #if (NCOM_PUC > 0) && defined(PUC_CNAUTO)
255: puc_cnprobe(NULL);
256: rv = puc_cninit(NULL);
257: if (rv == 0)
258: return;
259: #endif
260:
1.9 jmmv 261: if (addr == 0)
262: addr = CONADDR;
263: if (speed == 0)
264: speed = CONSPEED;
265:
1.25 msaitoh 266: rv = comcnattach(x86_bus_space_io, addr, speed,
267: COM_FREQ, COM_TYPE_NORMAL, comcnmode);
268: if (rv != 0)
1.1 fvdl 269: panic("can't init serial console @%x", consinfo->addr);
270: return;
271: }
272: #endif
1.28 is 273: #if (NNULLCONS > 0)
274: if (!strcmp(consinfo->devname, "nullcons")) {
275: void nullcninit(struct consdev *cn);
276:
277: nullcninit(0);
278: return;
279: }
280: #endif
1.1 fvdl 281: panic("invalid console device %s", consinfo->devname);
282: }
283:
284: #ifdef KGDB
285: void
1.20 cegger 286: kgdb_port_init(void)
1.1 fvdl 287: {
288: #if (NCOM > 0)
1.34 msaitoh 289: if (!strcmp(kgdb_devname, "com")) {
1.21 dyoung 290: com_kgdb_attach(x86_bus_space_io, comkgdbaddr, comkgdbrate,
291: COM_FREQ, COM_TYPE_NORMAL, comkgdbmode);
1.1 fvdl 292: }
293: #endif
294: }
295: #endif
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