ofw_consinit.c revision 1.1.10.2
1 /* $NetBSD: ofw_consinit.c,v 1.1.10.2 2007/11/13 15:59:08 bouyer 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 * 3. All advertising materials mentioning features or use of this software 19 * must display the following acknowledgement: 20 * This product includes software developed by the NetBSD 21 * Foundation, Inc. and its contributors. 22 * 4. Neither the name of The NetBSD Foundation nor the names of its 23 * contributors may be used to endorse or promote products derived 24 * from this software without specific prior written permission. 25 * 26 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 27 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 28 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 29 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 30 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 31 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 32 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 33 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 34 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 35 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 36 * POSSIBILITY OF SUCH DAMAGE. 37 */ 38 39 #include <sys/cdefs.h> 40 __KERNEL_RCSID(0, "$NetBSD: ofw_consinit.c,v 1.1.10.2 2007/11/13 15:59:08 bouyer Exp $"); 41 42 #include <sys/param.h> 43 #include <sys/buf.h> 44 #include <sys/tty.h> 45 46 #include <machine/autoconf.h> 47 #include <machine/trap.h> 48 #include <machine/bus.h> 49 50 #include <powerpc/ofw_cons.h> 51 52 #include <dev/cons.h> 53 #include <dev/ofw/openfirm.h> 54 55 #include <dev/wscons/wsksymvar.h> 56 #include <dev/wscons/wscons_callbacks.h> 57 58 #include <machine/stdarg.h> 59 60 #include "akbd.h" 61 #include "adbkbd.h" 62 #include "wsdisplay.h" 63 #include "ofb.h" 64 #include "isa.h" 65 66 #include "zsc.h" 67 #if NZSC > 0 68 #include <machine/z8530var.h> 69 #endif 70 71 #include "adb.h" 72 #if (NADB > 0) 73 #include <macppc/dev/adbvar.h> 74 #endif 75 76 #include "ukbd.h" 77 #if (NUKBD > 0) 78 #include <dev/usb/ukbdvar.h> 79 struct usb_kbd_ihandles { 80 struct usb_kbd_ihandles *next; 81 int ihandle; 82 }; 83 #endif 84 85 #include "zstty.h" 86 #if (NZSTTY > 0) 87 #include <dev/ic/z8530reg.h> 88 extern struct consdev consdev_zs; 89 #endif 90 91 #include "pckbc.h" 92 #if (NPCKBC > 0) 93 #include <dev/isa/isareg.h> 94 #include <dev/ic/i8042reg.h> 95 #include <dev/ic/pckbcvar.h> 96 #endif 97 98 extern int console_node, console_instance; 99 100 int chosen, stdin, stdout; 101 int ofkbd_ihandle; 102 103 static void cninit_kd(void); 104 static void ofwoea_bootstrap_console(void); 105 static int ofwbootcons_cngetc(dev_t); 106 static void ofwbootcons_cnputc(dev_t, int); 107 108 /*#define OFDEBUG*/ 109 110 struct consdev consdev_ofwbootcons = { 111 NULL, NULL, 112 ofwbootcons_cngetc, 113 ofwbootcons_cnputc, 114 nullcnpollc, 115 NULL, NULL, NULL, NODEV, CN_INTERNAL, 116 }; 117 118 #ifdef OFDEBUG 119 void ofprint(const char *, ...); 120 121 void ofprint(const char *blah, ...) 122 { 123 va_list va; 124 char buf[256]; 125 int len; 126 127 va_start(va, blah); 128 len = vsnprintf(buf, sizeof(buf), blah, va); 129 OF_write(console_instance, buf, len); 130 } 131 132 #define OFPRINTF ofprint 133 #else 134 #define OFPRINTF while(0) printf 135 #endif 136 137 void 138 cninit(void) 139 { 140 char type[16]; 141 142 ofwoea_bootstrap_console(); 143 144 OFPRINTF("console node: %08x\n", console_node); 145 146 if (console_node == -1) 147 goto nocons; 148 149 memset(type, 0, sizeof(type)); 150 if (OF_getprop(console_node, "device_type", type, sizeof(type)) == -1) 151 goto nocons; 152 153 OFPRINTF("console type: %s\n", type); 154 if (strcmp(type, "display") == 0) { 155 cninit_kd(); 156 return; 157 } 158 159 if (strcmp(type, "serial") == 0) { 160 struct consdev *cp; 161 char name[32]; 162 163 #ifdef PMAC_G5 164 /* The MMU hasn't been initialized yet, use failsafe for now */ 165 cp = &failsafe_cons; 166 cn_tab = cp; 167 (*cp->cn_probe)(cp); 168 (*cp->cn_init)(cp); 169 aprint_verbose("Early G5 console initialized\n"); 170 return; 171 #endif /* PMAC_G5 */ 172 173 #if (NZSTTY > 0) && !defined(MAMBO) 174 OF_getprop(console_node, "name", name, sizeof(name)); 175 if (strcmp(name, "ch-a") == 0 || strcmp(name, "ch-b") == 0) { 176 cp = &consdev_zs; 177 (*cp->cn_probe)(cp); 178 (*cp->cn_init)(cp); 179 cn_tab = cp; 180 } 181 return; 182 #endif /* NZTTY */ 183 184 OF_getprop(console_node, "name", name, sizeof(name)); 185 /* fallback to ofwbootcons */ 186 if (strcmp(name, "serial") == 0) { 187 cp = &consdev_ofwbootcons; 188 cn_tab = cp; 189 } 190 return; 191 } 192 nocons: 193 return; 194 } 195 196 197 static void 198 cninit_kd(void) 199 { 200 int kstdin, node; 201 char name[16]; 202 #if (NAKBD > 0) || (NADBKBD > 0) 203 int akbd; 204 #endif 205 #if NUKBD > 0 206 struct usb_kbd_ihandles *ukbds; 207 int ukbd; 208 #endif 209 210 /* 211 * Attach the console output now (so we can see debugging messages, 212 * if any). 213 */ 214 #if NWSDISPLAY > 0 215 ofb_cnattach(); 216 #endif 217 218 /* 219 * We must determine which keyboard type we have. 220 */ 221 if (OF_getprop(chosen, "stdin", &kstdin, sizeof(kstdin)) 222 != sizeof(kstdin)) { 223 printf("WARNING: no `stdin' property in /chosen\n"); 224 return; 225 } 226 227 node = OF_instance_to_package(kstdin); 228 memset(name, 0, sizeof(name)); 229 OF_getprop(node, "name", name, sizeof(name)); 230 if (strcmp(name, "keyboard") != 0) { 231 printf("WARNING: stdin is not a keyboard: %s\n", name); 232 return; 233 } 234 235 #if NAKBD > 0 236 memset(name, 0, sizeof(name)); 237 OF_getprop(OF_parent(node), "name", name, sizeof(name)); 238 if (strcmp(name, "adb") == 0) { 239 printf("console keyboard type: ADB\n"); 240 akbd_cnattach(); 241 goto kbd_found; 242 } 243 #endif 244 #if NADBKBD > 0 245 memset(name, 0, sizeof(name)); 246 OF_getprop(OF_parent(node), "name", name, sizeof(name)); 247 if (strcmp(name, "adb") == 0) { 248 printf("console keyboard type: ADB\n"); 249 adbkbd_cnattach(); 250 goto kbd_found; 251 } 252 #endif 253 #if NPCKBC > 0 254 memset(name, 0, sizeof(name)); 255 OF_getprop(OF_parent(node), "name", name, sizeof(name)); 256 if (strcmp(name, "keyboard") == 0) { 257 printf("console keyboard type: PC Keyboard\n"); 258 pckbc_cnattach(&genppc_isa_io_space_tag, IO_KBD, KBCMDP, 259 PCKBC_KBD_SLOT); 260 goto kbd_found; 261 } 262 #endif 263 264 /* 265 * It is not obviously an ADB/PC keyboard. Could be USB, 266 * or ADB on some firmware versions (e.g.: iBook G4) 267 * This is not enough, we have a few more problems: 268 * 269 * (1) The stupid Macintosh firmware uses a 270 * `psuedo-hid' (no typo) or `pseudo-hid', 271 * which apparently merges all keyboards 272 * input into a single input stream. 273 * Because of this, we can't actually 274 * determine which controller or keyboard 275 * is really the console keyboard! 276 * 277 * (2) Even if we could, the keyboard can be USB, 278 * and this requires a lot of the kernel to 279 * be running in order for it to work. 280 * 281 * (3) If the keyboard is behind isa, we don't have enough 282 * kernel setup to use it yet, so punt to the ofroutines. 283 * 284 * So, what we do is this: 285 * 286 * (1) First check for OpenFirmware implementation 287 * that will not let us distinguish between 288 * USB and ADB. In that situation, try attaching 289 * anything as we can, and hope things get better 290 * at autoconfiguration time. 291 * 292 * (2) Assume the keyboard is USB. 293 * Tell the ukbd driver that it is the console. 294 * At autoconfiguration time, it will attach the 295 * first USB keyboard instance as the console 296 * keyboard. 297 * 298 * (3) Until then, so that we have _something_, we 299 * use the OpenFirmware I/O facilities to read 300 * the keyboard. 301 */ 302 303 /* 304 * stdin is /pseudo-hid/keyboard. There is no 305 * `adb-kbd-ihandle or `usb-kbd-ihandles methods 306 * available. Try attaching as ADB. 307 * 308 * XXX This must be called before pmap_bootstrap(). 309 */ 310 if (strcmp(name, "pseudo-hid") == 0) { 311 printf("console keyboard type: unknown, assuming ADB\n"); 312 #if NAKBD > 0 313 akbd_cnattach(); 314 #endif 315 #if NADBKBD > 0 316 adbkbd_cnattach(); 317 #endif 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 > 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