ofw_consinit.c revision 1.6.14.1
1 /* $NetBSD: ofw_consinit.c,v 1.6.14.1 2008/06/02 13:22:32 mjf 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 1.6.14.1 2008/06/02 13:22:32 mjf 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 * 295 * XXX This must be called before pmap_bootstrap(). 296 */ 297 if (strcmp(name, "pseudo-hid") == 0) { 298 printf("console keyboard type: unknown, assuming ADB\n"); 299 #if NAKBD > 0 300 akbd_cnattach(); 301 #endif 302 #if NADBKBD > 0 303 adbkbd_cnattach(); 304 #endif 305 goto kbd_found; 306 } 307 308 /* 309 * stdin is /psuedo-hid/keyboard. Test `adb-kbd-ihandle and 310 * `usb-kbd-ihandles to figure out the real keyboard(s). 311 * 312 * XXX This must be called before pmap_bootstrap(). 313 */ 314 315 #if NUKBD > 0 316 if (OF_call_method("`usb-kbd-ihandles", stdin, 0, 1, &ukbds) >= 0 && 317 ukbds != NULL && ukbds->ihandle != 0 && 318 OF_instance_to_package(ukbds->ihandle) != -1) { 319 printf("usb-kbd-ihandles matches\n"); 320 printf("console keyboard type: USB\n"); 321 ukbd_cnattach(); 322 goto kbd_found; 323 } 324 /* Try old method name. */ 325 if (OF_call_method("`usb-kbd-ihandle", kstdin, 0, 1, &ukbd) >= 0 && 326 ukbd != 0 && 327 OF_instance_to_package(ukbd) != -1) { 328 printf("usb-kbd-ihandle matches\n"); 329 printf("console keyboard type: USB\n"); 330 kstdin = ukbd; 331 ukbd_cnattach(); 332 goto kbd_found; 333 } 334 #endif 335 336 #if (NAKBD > 0) || (NADBKBD > 0) 337 if (OF_call_method("`adb-kbd-ihandle", kstdin, 0, 1, &akbd) >= 0 && 338 akbd != 0 && 339 OF_instance_to_package(akbd) != -1) { 340 printf("adb-kbd-ihandle matches\n"); 341 printf("console keyboard type: ADB\n"); 342 kstdin = akbd; 343 #if NAKBD > 0 344 akbd_cnattach(); 345 #endif 346 #if NADBKBD > 0 347 adbkbd_cnattach(); 348 #endif 349 goto kbd_found; 350 } 351 #endif 352 353 #if NUKBD > 0 354 /* 355 * XXX Old firmware does not have `usb-kbd-ihandles method. Assume 356 * XXX USB keyboard anyway. 357 */ 358 printf("defaulting to USB..."); 359 printf("console keyboard type: USB\n"); 360 ukbd_cnattach(); 361 goto kbd_found; 362 #endif 363 364 /* 365 * No keyboard is found. Just return. 366 */ 367 printf("no console keyboard\n"); 368 return; 369 370 kbd_found:; 371 #if NAKBD + NUKBD + NADBKBD > 0 372 /* 373 * XXX This is a little gross, but we don't get to call 374 * XXX wskbd_cnattach() twice. 375 */ 376 ofkbd_ihandle = kstdin; 377 #if NWSDISPLAY > 0 378 wsdisplay_set_cons_kbd(ofkbd_cngetc, NULL, NULL); 379 #endif 380 #endif 381 } 382 383 /* 384 * Bootstrap console keyboard routines, using OpenFirmware I/O. 385 */ 386 int 387 ofkbd_cngetc(dev_t dev) 388 { 389 u_char c = '\0'; 390 int len; 391 392 do { 393 len = OF_read(ofkbd_ihandle, &c, 1); 394 } while (len != 1); 395 396 return c; 397 } 398 399 /* 400 * Bootstrap console support functions 401 */ 402 403 static int 404 ofwbootcons_cngetc(dev_t dev) 405 { 406 unsigned char ch = '\0'; 407 int l; 408 409 while ((l = OF_read(stdin, &ch, 1)) != 1) 410 if (l != -2 && l != 0) 411 return -1; 412 return ch; 413 } 414 415 static void 416 ofwbootcons_cnputc(dev_t dev, int c) 417 { 418 char ch = c; 419 420 OF_write(stdout, &ch, 1); 421 } 422 423 void 424 ofwoea_consinit(void) 425 { 426 static int initted = 0; 427 428 if (initted) 429 return; 430 431 initted = 1; 432 cninit(); 433 } 434 435 static void 436 ofwoea_bootstrap_console(void) 437 { 438 int node; 439 440 chosen = OF_finddevice("/chosen"); 441 if (chosen == -1) 442 goto nocons; 443 444 if (OF_getprop(chosen, "stdout", &stdout, 445 sizeof(stdout)) != sizeof(stdout)) 446 goto nocons; 447 if (OF_getprop(chosen, "stdin", &stdin, 448 sizeof(stdin)) != sizeof(stdin)) 449 goto nocons; 450 node = OF_instance_to_package(stdout); 451 console_node = node; 452 console_instance = stdout; 453 454 return; 455 nocons: 456 panic("No /chosen could be found!\n"); 457 console_node = -1; 458 return; 459 } 460
Indexes created Wed Oct 15 03:09:54 GMT 2025