ofw_consinit.c revision 1.6.18.2
1 /* $NetBSD: ofw_consinit.c,v 1.6.18.2 2009/05/04 08:11:44 yamt Exp $ */ 2 3 /*- 4 * Copyright (c) 2007 The NetBSD Foundation, Inc. 5 * All rights reserved. 6 * 7 * This code is derived from software contributed to The NetBSD Foundation 8 * by Tim Rightnour 9 * 10 * Redistribution and use in source and binary forms, with or without 11 * modification, are permitted provided that the following conditions 12 * are met: 13 * 1. Redistributions of source code must retain the above copyright 14 * notice, this list of conditions and the following disclaimer. 15 * 2. Redistributions in binary form must reproduce the above copyright 16 * notice, this list of conditions and the following disclaimer in the 17 * documentation and/or other materials provided with the distribution. 18 * 19 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 20 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 21 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 22 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 23 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 24 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 25 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 26 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 27 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 28 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 29 * POSSIBILITY OF SUCH DAMAGE. 30 */ 31 32 #include <sys/cdefs.h> 33 __KERNEL_RCSID(0, "$NetBSD: ofw_consinit.c,v 1.6.18.2 2009/05/04 08:11:44 yamt Exp $"); 34 35 #include <sys/param.h> 36 #include <sys/buf.h> 37 #include <sys/tty.h> 38 39 #include <machine/autoconf.h> 40 #include <machine/trap.h> 41 #include <machine/bus.h> 42 43 #include <powerpc/ofw_cons.h> 44 45 #include <dev/cons.h> 46 #include <dev/ofw/openfirm.h> 47 48 #include <dev/wscons/wsksymvar.h> 49 #include <dev/wscons/wscons_callbacks.h> 50 51 #include <machine/stdarg.h> 52 53 #include "akbd.h" 54 #include "adbkbd.h" 55 #include "wsdisplay.h" 56 #include "ofb.h" 57 #include "isa.h" 58 59 #include "zsc.h" 60 #if NZSC > 0 61 #include <machine/z8530var.h> 62 #endif 63 64 #include "adb.h" 65 #if (NADB > 0) 66 #include <macppc/dev/adbvar.h> 67 #endif 68 69 #include "ukbd.h" 70 #if (NUKBD > 0) 71 #include <dev/usb/ukbdvar.h> 72 struct usb_kbd_ihandles { 73 struct usb_kbd_ihandles *next; 74 int ihandle; 75 }; 76 #endif 77 78 #include "zstty.h" 79 #if (NZSTTY > 0) 80 #include <dev/ic/z8530reg.h> 81 extern struct consdev consdev_zs; 82 #endif 83 84 #include "pckbc.h" 85 #if (NPCKBC > 0) 86 #include <dev/isa/isareg.h> 87 #include <dev/ic/i8042reg.h> 88 #include <dev/ic/pckbcvar.h> 89 #endif 90 91 extern int console_node, console_instance; 92 93 int chosen, stdin, stdout; 94 int ofkbd_ihandle; 95 96 static void cninit_kd(void); 97 static void ofwoea_bootstrap_console(void); 98 static int ofwbootcons_cngetc(dev_t); 99 static void ofwbootcons_cnputc(dev_t, int); 100 101 /*#define OFDEBUG*/ 102 103 struct consdev consdev_ofwbootcons = { 104 NULL, NULL, 105 ofwbootcons_cngetc, 106 ofwbootcons_cnputc, 107 nullcnpollc, 108 NULL, NULL, NULL, NODEV, CN_INTERNAL, 109 }; 110 111 #ifdef OFDEBUG 112 void ofprint(const char *, ...); 113 114 void ofprint(const char *blah, ...) 115 { 116 va_list va; 117 char buf[256]; 118 int len; 119 120 va_start(va, blah); 121 len = vsnprintf(buf, sizeof(buf), blah, va); 122 OF_write(console_instance, buf, len); 123 } 124 125 #define OFPRINTF ofprint 126 #else 127 #define OFPRINTF while(0) printf 128 #endif 129 130 void 131 cninit(void) 132 { 133 char name[32]; 134 135 ofwoea_bootstrap_console(); 136 137 OFPRINTF("console node: %08x\n", console_node); 138 139 if (console_node == -1) 140 goto nocons; 141 142 memset(name, 0, sizeof(name)); 143 if (OF_getprop(console_node, "device_type", name, sizeof(name)) == -1) 144 goto nocons; 145 146 OFPRINTF("console type: %s\n", name); 147 148 if (strcmp(name, "serial") == 0) { 149 struct consdev *cp; 150 151 #ifdef PMAC_G5 152 /* The MMU hasn't been initialized yet, use failsafe for now */ 153 cp = &failsafe_cons; 154 cn_tab = cp; 155 (*cp->cn_probe)(cp); 156 (*cp->cn_init)(cp); 157 aprint_verbose("Early G5 console initialized\n"); 158 return; 159 #endif /* PMAC_G5 */ 160 161 #if (NZSTTY > 0) && !defined(MAMBO) 162 OF_getprop(console_node, "name", name, sizeof(name)); 163 if (strcmp(name, "ch-a") == 0 || strcmp(name, "ch-b") == 0) { 164 cp = &consdev_zs; 165 (*cp->cn_probe)(cp); 166 (*cp->cn_init)(cp); 167 cn_tab = cp; 168 } 169 return; 170 #endif /* NZTTY */ 171 172 /* fallback to OFW boot console */ 173 cp = &consdev_ofwbootcons; 174 cn_tab = cp; 175 return; 176 } 177 else 178 cninit_kd(); 179 nocons: 180 return; 181 } 182 183 184 static void 185 cninit_kd(void) 186 { 187 int kstdin, node; 188 char name[16]; 189 #if (NAKBD > 0) || (NADBKBD > 0) 190 int akbd; 191 #endif 192 #if NUKBD > 0 193 struct usb_kbd_ihandles *ukbds; 194 int ukbd; 195 #endif 196 197 /* 198 * Attach the console output now (so we can see debugging messages, 199 * if any). 200 */ 201 #if NWSDISPLAY > 0 202 rascons_cnattach(); 203 #endif 204 205 /* 206 * We must determine which keyboard type we have. 207 */ 208 if (OF_getprop(chosen, "stdin", &kstdin, sizeof(kstdin)) 209 != sizeof(kstdin)) { 210 printf("WARNING: no `stdin' property in /chosen\n"); 211 return; 212 } 213 214 node = OF_instance_to_package(kstdin); 215 memset(name, 0, sizeof(name)); 216 OF_getprop(node, "name", name, sizeof(name)); 217 if (strcmp(name, "keyboard") != 0) { 218 printf("WARNING: stdin is not a keyboard: %s\n", name); 219 return; 220 } 221 222 #if NAKBD > 0 223 memset(name, 0, sizeof(name)); 224 OF_getprop(OF_parent(node), "name", name, sizeof(name)); 225 if (strcmp(name, "adb") == 0) { 226 printf("console keyboard type: ADB\n"); 227 akbd_cnattach(); 228 goto kbd_found; 229 } 230 #endif 231 #if NADBKBD > 0 232 memset(name, 0, sizeof(name)); 233 OF_getprop(OF_parent(node), "name", name, sizeof(name)); 234 if (strcmp(name, "adb") == 0) { 235 printf("console keyboard type: ADB\n"); 236 adbkbd_cnattach(); 237 goto kbd_found; 238 } 239 #endif 240 #if NPCKBC > 0 241 memset(name, 0, sizeof(name)); 242 OF_getprop(OF_parent(node), "name", name, sizeof(name)); 243 if (strcmp(name, "keyboard") == 0) { 244 printf("console keyboard type: PC Keyboard\n"); 245 pckbc_cnattach(&genppc_isa_io_space_tag, IO_KBD, KBCMDP, 246 PCKBC_KBD_SLOT); 247 goto kbd_found; 248 } 249 #endif 250 251 /* 252 * It is not obviously an ADB/PC keyboard. Could be USB, 253 * or ADB on some firmware versions (e.g.: iBook G4) 254 * This is not enough, we have a few more problems: 255 * 256 * (1) The stupid Macintosh firmware uses a 257 * `psuedo-hid' (no typo) or `pseudo-hid', 258 * which apparently merges all keyboards 259 * input into a single input stream. 260 * Because of this, we can't actually 261 * determine which controller or keyboard 262 * is really the console keyboard! 263 * 264 * (2) Even if we could, the keyboard can be USB, 265 * and this requires a lot of the kernel to 266 * be running in order for it to work. 267 * 268 * (3) If the keyboard is behind isa, we don't have enough 269 * kernel setup to use it yet, so punt to the ofroutines. 270 * 271 * So, what we do is this: 272 * 273 * (1) First check for OpenFirmware implementation 274 * that will not let us distinguish between 275 * USB and ADB. In that situation, try attaching 276 * anything as we can, and hope things get better 277 * at autoconfiguration time. 278 * 279 * (2) Assume the keyboard is USB. 280 * Tell the ukbd driver that it is the console. 281 * At autoconfiguration time, it will attach the 282 * first USB keyboard instance as the console 283 * keyboard. 284 * 285 * (3) Until then, so that we have _something_, we 286 * use the OpenFirmware I/O facilities to read 287 * the keyboard. 288 */ 289 290 /* 291 * stdin is /pseudo-hid/keyboard. There is no 292 * `adb-kbd-ihandle or `usb-kbd-ihandles methods 293 * available. Try attaching as ADB. 294 * But only if ADB support is actually present. 295 * 296 * XXX This must be called before pmap_bootstrap(). 297 */ 298 if (strcmp(name, "pseudo-hid") == 0) { 299 int adb_node; 300 301 adb_node = OF_finddevice("/pci/mac-io/via-pmu/adb"); 302 if (adb_node > 0) { 303 printf("ADB support found\n"); 304 #if NAKBD > 0 305 akbd_cnattach(); 306 #endif 307 #if NADBKBD > 0 308 adbkbd_cnattach(); 309 #endif 310 } else { 311 /* must be USB */ 312 printf("No ADB support present, assuming USB " 313 "keyboard\n"); 314 #if NUKBD > 0 315 ukbd_cnattach(); 316 #endif 317 } 318 goto kbd_found; 319 } 320 321 /* 322 * stdin is /psuedo-hid/keyboard. Test `adb-kbd-ihandle and 323 * `usb-kbd-ihandles to figure out the real keyboard(s). 324 * 325 * XXX This must be called before pmap_bootstrap(). 326 */ 327 328 #if NUKBD > 0 329 if (OF_call_method("`usb-kbd-ihandles", stdin, 0, 1, &ukbds) >= 0 && 330 ukbds != NULL && ukbds->ihandle != 0 && 331 OF_instance_to_package(ukbds->ihandle) != -1) { 332 printf("usb-kbd-ihandles matches\n"); 333 printf("console keyboard type: USB\n"); 334 ukbd_cnattach(); 335 goto kbd_found; 336 } 337 /* Try old method name. */ 338 if (OF_call_method("`usb-kbd-ihandle", kstdin, 0, 1, &ukbd) >= 0 && 339 ukbd != 0 && 340 OF_instance_to_package(ukbd) != -1) { 341 printf("usb-kbd-ihandle matches\n"); 342 printf("console keyboard type: USB\n"); 343 kstdin = ukbd; 344 ukbd_cnattach(); 345 goto kbd_found; 346 } 347 #endif 348 349 #if (NAKBD > 0) || (NADBKBD > 0) 350 if (OF_call_method("`adb-kbd-ihandle", kstdin, 0, 1, &akbd) >= 0 && 351 akbd != 0 && 352 OF_instance_to_package(akbd) != -1) { 353 printf("adb-kbd-ihandle matches\n"); 354 printf("console keyboard type: ADB\n"); 355 kstdin = akbd; 356 #if NAKBD > 0 357 akbd_cnattach(); 358 #endif 359 #if NADBKBD > 0 360 adbkbd_cnattach(); 361 #endif 362 goto kbd_found; 363 } 364 #endif 365 366 #if NUKBD > 0 367 /* 368 * XXX Old firmware does not have `usb-kbd-ihandles method. Assume 369 * XXX USB keyboard anyway. 370 */ 371 printf("defaulting to USB..."); 372 printf("console keyboard type: USB\n"); 373 ukbd_cnattach(); 374 goto kbd_found; 375 #endif 376 377 /* 378 * No keyboard is found. Just return. 379 */ 380 printf("no console keyboard\n"); 381 return; 382 383 kbd_found:; 384 #if NAKBD + NUKBD + NADBKBD + NPCKBC > 0 385 /* 386 * XXX This is a little gross, but we don't get to call 387 * XXX wskbd_cnattach() twice. 388 */ 389 ofkbd_ihandle = kstdin; 390 #if NWSDISPLAY > 0 391 wsdisplay_set_cons_kbd(ofkbd_cngetc, NULL, NULL); 392 #endif 393 #endif 394 } 395 396 /* 397 * Bootstrap console keyboard routines, using OpenFirmware I/O. 398 */ 399 int 400 ofkbd_cngetc(dev_t dev) 401 { 402 u_char c = '\0'; 403 int len; 404 405 do { 406 len = OF_read(ofkbd_ihandle, &c, 1); 407 } while (len != 1); 408 409 return c; 410 } 411 412 /* 413 * Bootstrap console support functions 414 */ 415 416 static int 417 ofwbootcons_cngetc(dev_t dev) 418 { 419 unsigned char ch = '\0'; 420 int l; 421 422 while ((l = OF_read(stdin, &ch, 1)) != 1) 423 if (l != -2 && l != 0) 424 return -1; 425 return ch; 426 } 427 428 static void 429 ofwbootcons_cnputc(dev_t dev, int c) 430 { 431 char ch = c; 432 433 OF_write(stdout, &ch, 1); 434 } 435 436 void 437 ofwoea_consinit(void) 438 { 439 static int initted = 0; 440 441 if (initted) 442 return; 443 444 initted = 1; 445 cninit(); 446 } 447 448 static void 449 ofwoea_bootstrap_console(void) 450 { 451 int node; 452 453 chosen = OF_finddevice("/chosen"); 454 if (chosen == -1) 455 goto nocons; 456 457 if (OF_getprop(chosen, "stdout", &stdout, 458 sizeof(stdout)) != sizeof(stdout)) 459 goto nocons; 460 if (OF_getprop(chosen, "stdin", &stdin, 461 sizeof(stdin)) != sizeof(stdin)) 462 goto nocons; 463 node = OF_instance_to_package(stdout); 464 console_node = node; 465 console_instance = stdout; 466 467 return; 468 nocons: 469 panic("No /chosen could be found!\n"); 470 console_node = -1; 471 return; 472 } 473
Indexes created Wed Oct 15 16:09:53 GMT 2025