| 1 | /* |
| 2 | * SBUS and OpenPROM access functions. |
| 3 | * |
| 4 | * Copyright (C) 2000 Jakub Jelinek (jakub@redhat.com) |
| 5 | * |
| 6 | * Permission is hereby granted, free of charge, to any person obtaining a copy |
| 7 | * of this software and associated documentation files (the "Software"), to deal |
| 8 | * in the Software without restriction, including without limitation the rights |
| 9 | * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell |
| 10 | * copies of the Software, and to permit persons to whom the Software is |
| 11 | * furnished to do so, subject to the following conditions: |
| 12 | * |
| 13 | * The above copyright notice and this permission notice shall be included in |
| 14 | * all copies or substantial portions of the Software. |
| 15 | * |
| 16 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
| 17 | * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
| 18 | * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL |
| 19 | * JAKUB JELINEK BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER |
| 20 | * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN |
| 21 | * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. |
| 22 | */ |
| 23 | |
| 24 | #ifdef HAVE_XORG_CONFIG_H |
| 25 | #include <xorg-config.h> |
| 26 | #endif |
| 27 | |
| 28 | #include <fcntl.h> |
| 29 | #include <stdio.h> |
| 30 | #include <unistd.h> |
| 31 | #include <stdlib.h> |
| 32 | #include <sys/ioctl.h> |
| 33 | #include <sys/mman.h> |
| 34 | #ifdef sun |
| 35 | #include <sys/utsname.h> |
| 36 | #endif |
| 37 | #include "xf86.h" |
| 38 | #include "xf86Priv.h" |
| 39 | #include "xf86_OSlib.h" |
| 40 | |
| 41 | #include "xf86sbusBus.h" |
| 42 | #include "xf86Sbus.h" |
| 43 | |
| 44 | int promRootNode; |
| 45 | |
| 46 | static int promFd = -1; |
| 47 | static int promCurrentNode; |
| 48 | static int promOpenCount = 0; |
| 49 | static int promP1275 = -1; |
| 50 | |
| 51 | #define MAX_PROP 128 |
| 52 | #define MAX_VAL (4096-128-4) |
| 53 | static struct openpromio *promOpio; |
| 54 | |
| 55 | sbusDevicePtr *xf86SbusInfo = NULL; |
| 56 | |
| 57 | struct sbus_devtable sbusDeviceTable[] = { |
| 58 | {SBUS_DEVICE_BW2, FBTYPE_SUN2BW, "bwtwo", "sunbw2", |
| 59 | "Sun Monochrome (bwtwo)"}, |
| 60 | {SBUS_DEVICE_CG2, FBTYPE_SUN2COLOR, "cgtwo", NULL, "Sun Color2 (cgtwo)"}, |
| 61 | {SBUS_DEVICE_CG3, FBTYPE_SUN3COLOR, "cgthree", "suncg3", |
| 62 | "Sun Color3 (cgthree)"}, |
| 63 | {SBUS_DEVICE_CG4, FBTYPE_SUN4COLOR, "cgfour", NULL, "Sun Color4 (cgfour)"}, |
| 64 | {SBUS_DEVICE_CG6, FBTYPE_SUNFAST_COLOR, "cgsix", "suncg6", "Sun GX"}, |
| 65 | {SBUS_DEVICE_CG8, FBTYPE_MEMCOLOR, "cgeight", NULL, "Sun CG8/RasterOps"}, |
| 66 | {SBUS_DEVICE_CG12, FBTYPE_SUNGP3, "cgtwelve", NULL, "Sun GS (cgtwelve)"}, |
| 67 | {SBUS_DEVICE_CG14, FBTYPE_MDICOLOR, "cgfourteen", "suncg14", "Sun SX"}, |
| 68 | {SBUS_DEVICE_GT, FBTYPE_SUNGT, "gt", NULL, "Sun Graphics Tower"}, |
| 69 | {SBUS_DEVICE_MGX, -1, "mgx", NULL, "Quantum 3D MGXplus"}, |
| 70 | {SBUS_DEVICE_LEO, FBTYPE_SUNLEO, "leo", "sunleo", "Sun ZX or Turbo ZX"}, |
| 71 | {SBUS_DEVICE_TCX, FBTYPE_TCXCOLOR, "tcx", "suntcx", "Sun TCX"}, |
| 72 | {SBUS_DEVICE_FFB, FBTYPE_CREATOR, "ffb", "sunffb", "Sun FFB"}, |
| 73 | {SBUS_DEVICE_FFB, FBTYPE_CREATOR, "afb", "sunffb", "Sun Elite3D"}, |
| 74 | {0, 0, NULL} |
| 75 | }; |
| 76 | |
| 77 | int |
| 78 | promGetSibling(int node) |
| 79 | { |
| 80 | promOpio->oprom_size = sizeof(int); |
| 81 | |
| 82 | if (node == -1) |
| 83 | return 0; |
| 84 | *(int *) promOpio->oprom_array = node; |
| 85 | if (ioctl(promFd, OPROMNEXT, promOpio) < 0) |
| 86 | return 0; |
| 87 | promCurrentNode = *(int *) promOpio->oprom_array; |
| 88 | return *(int *) promOpio->oprom_array; |
| 89 | } |
| 90 | |
| 91 | int |
| 92 | promGetChild(int node) |
| 93 | { |
| 94 | promOpio->oprom_size = sizeof(int); |
| 95 | |
| 96 | if (!node || node == -1) |
| 97 | return 0; |
| 98 | *(int *) promOpio->oprom_array = node; |
| 99 | if (ioctl(promFd, OPROMCHILD, promOpio) < 0) |
| 100 | return 0; |
| 101 | promCurrentNode = *(int *) promOpio->oprom_array; |
| 102 | return *(int *) promOpio->oprom_array; |
| 103 | } |
| 104 | |
| 105 | char * |
| 106 | promGetProperty(const char *prop, int *lenp) |
| 107 | { |
| 108 | promOpio->oprom_size = MAX_VAL; |
| 109 | |
| 110 | strcpy(promOpio->oprom_array, prop); |
| 111 | if (ioctl(promFd, OPROMGETPROP, promOpio) < 0) |
| 112 | return 0; |
| 113 | if (lenp) |
| 114 | *lenp = promOpio->oprom_size; |
| 115 | return promOpio->oprom_array; |
| 116 | } |
| 117 | |
| 118 | int |
| 119 | promGetBool(const char *prop) |
| 120 | { |
| 121 | promOpio->oprom_size = 0; |
| 122 | |
| 123 | *(int *) promOpio->oprom_array = 0; |
| 124 | for (;;) { |
| 125 | promOpio->oprom_size = MAX_PROP; |
| 126 | if (ioctl(promFd, OPROMNXTPROP, promOpio) < 0) |
| 127 | return 0; |
| 128 | if (!promOpio->oprom_size) |
| 129 | return 0; |
| 130 | if (!strcmp(promOpio->oprom_array, prop)) |
| 131 | return 1; |
| 132 | } |
| 133 | } |
| 134 | |
| 135 | #define PROM_NODE_SIBLING 0x01 |
| 136 | #define PROM_NODE_PREF 0x02 |
| 137 | #define PROM_NODE_SBUS 0x04 |
| 138 | #define PROM_NODE_EBUS 0x08 |
| 139 | #define PROM_NODE_PCI 0x10 |
| 140 | |
| 141 | static int |
| 142 | promSetNode(sbusPromNodePtr pnode) |
| 143 | { |
| 144 | int node; |
| 145 | |
| 146 | if (!pnode->node || pnode->node == -1) |
| 147 | return -1; |
| 148 | if (pnode->cookie[0] & PROM_NODE_SIBLING) |
| 149 | node = promGetSibling(pnode->cookie[1]); |
| 150 | else |
| 151 | node = promGetChild(pnode->cookie[1]); |
| 152 | if (pnode->node != node) |
| 153 | return -1; |
| 154 | return 0; |
| 155 | } |
| 156 | |
| 157 | static void |
| 158 | promIsP1275(void) |
| 159 | { |
| 160 | #ifdef linux |
| 161 | FILE *f; |
| 162 | char buffer[1024]; |
| 163 | |
| 164 | if (promP1275 != -1) |
| 165 | return; |
| 166 | promP1275 = 0; |
| 167 | f = fopen("/proc/cpuinfo", "r"); |
| 168 | if (!f) |
| 169 | return; |
| 170 | while (fgets(buffer, 1024, f) != NULL) |
| 171 | if (!strncmp(buffer, "type", 4) && strstr(buffer, "sun4u")) { |
| 172 | promP1275 = 1; |
| 173 | break; |
| 174 | } |
| 175 | fclose(f); |
| 176 | #elif defined(sun) |
| 177 | struct utsname buffer; |
| 178 | |
| 179 | if ((uname(&buffer) >= 0) && !strcmp(buffer.machine, "sun4u")) |
| 180 | promP1275 = TRUE; |
| 181 | else |
| 182 | promP1275 = FALSE; |
| 183 | #elif defined(__FreeBSD__) |
| 184 | promP1275 = TRUE; |
| 185 | #else |
| 186 | #error Missing promIsP1275() function for this OS |
| 187 | #endif |
| 188 | } |
| 189 | |
| 190 | void |
| 191 | sparcPromClose(void) |
| 192 | { |
| 193 | if (promOpenCount > 1) { |
| 194 | promOpenCount--; |
| 195 | return; |
| 196 | } |
| 197 | if (promFd != -1) { |
| 198 | close(promFd); |
| 199 | promFd = -1; |
| 200 | } |
| 201 | free(promOpio); |
| 202 | promOpio = NULL; |
| 203 | promOpenCount = 0; |
| 204 | } |
| 205 | |
| 206 | int |
| 207 | sparcPromInit(void) |
| 208 | { |
| 209 | if (promOpenCount) { |
| 210 | promOpenCount++; |
| 211 | return 0; |
| 212 | } |
| 213 | promFd = open("/dev/openprom", O_RDONLY, 0); |
| 214 | if (promFd == -1) |
| 215 | return -1; |
| 216 | promOpio = (struct openpromio *) malloc(4096); |
| 217 | if (!promOpio) { |
| 218 | sparcPromClose(); |
| 219 | return -1; |
| 220 | } |
| 221 | promRootNode = promGetSibling(0); |
| 222 | if (!promRootNode) { |
| 223 | sparcPromClose(); |
| 224 | return -1; |
| 225 | } |
| 226 | promIsP1275(); |
| 227 | promOpenCount++; |
| 228 | |
| 229 | return 0; |
| 230 | } |
| 231 | |
| 232 | char * |
| 233 | sparcPromGetProperty(sbusPromNodePtr pnode, const char *prop, int *lenp) |
| 234 | { |
| 235 | if (promSetNode(pnode)) |
| 236 | return NULL; |
| 237 | return promGetProperty(prop, lenp); |
| 238 | } |
| 239 | |
| 240 | int |
| 241 | sparcPromGetBool(sbusPromNodePtr pnode, const char *prop) |
| 242 | { |
| 243 | if (promSetNode(pnode)) |
| 244 | return 0; |
| 245 | return promGetBool(prop); |
| 246 | } |
| 247 | |
| 248 | static char * |
| 249 | promWalkGetDriverName(int node, int oldnode) |
| 250 | { |
| 251 | int nextnode; |
| 252 | int len; |
| 253 | char *prop; |
| 254 | int devId, i; |
| 255 | |
| 256 | prop = promGetProperty("device_type", &len); |
| 257 | if (prop && (len > 0)) |
| 258 | do { |
| 259 | if (!strcmp(prop, "display")) { |
| 260 | prop = promGetProperty("name", &len); |
| 261 | if (!prop || len <= 0) |
| 262 | break; |
| 263 | while ((*prop >= 'A' && *prop <= 'Z') || *prop == ',') |
| 264 | prop++; |
| 265 | for (i = 0; sbusDeviceTable[i].devId; i++) |
| 266 | if (!strcmp(prop, sbusDeviceTable[i].promName)) |
| 267 | break; |
| 268 | devId = sbusDeviceTable[i].devId; |
| 269 | if (!devId) |
| 270 | break; |
| 271 | if (sbusDeviceTable[i].driverName) |
| 272 | return sbusDeviceTable[i].driverName; |
| 273 | } |
| 274 | } while (0); |
| 275 | |
| 276 | nextnode = promGetChild(node); |
| 277 | if (nextnode) { |
| 278 | char *name; |
| 279 | |
| 280 | name = promWalkGetDriverName(nextnode, node); |
| 281 | if (name) |
| 282 | return name; |
| 283 | } |
| 284 | |
| 285 | nextnode = promGetSibling(node); |
| 286 | if (nextnode) |
| 287 | return promWalkGetDriverName(nextnode, node); |
| 288 | return NULL; |
| 289 | } |
| 290 | |
| 291 | char * |
| 292 | sparcDriverName(void) |
| 293 | { |
| 294 | char *name; |
| 295 | |
| 296 | if (sparcPromInit() < 0) |
| 297 | return NULL; |
| 298 | promGetSibling(0); |
| 299 | name = promWalkGetDriverName(promRootNode, 0); |
| 300 | sparcPromClose(); |
| 301 | return name; |
| 302 | } |
| 303 | |
| 304 | static void |
| 305 | promWalkAssignNodes(int node, int oldnode, int flags, |
| 306 | sbusDevicePtr * devicePtrs) |
| 307 | { |
| 308 | int nextnode; |
| 309 | int len, sbus = flags & PROM_NODE_SBUS; |
| 310 | char *prop; |
| 311 | int devId, i, j; |
| 312 | sbusPromNode pNode, pNode2; |
| 313 | |
| 314 | prop = promGetProperty("device_type", &len); |
| 315 | if (prop && (len > 0)) |
| 316 | do { |
| 317 | if (!strcmp(prop, "display")) { |
| 318 | prop = promGetProperty("name", &len); |
| 319 | if (!prop || len <= 0) |
| 320 | break; |
| 321 | while ((*prop >= 'A' && *prop <= 'Z') || *prop == ',') |
| 322 | prop++; |
| 323 | for (i = 0; sbusDeviceTable[i].devId; i++) |
| 324 | if (!strcmp(prop, sbusDeviceTable[i].promName)) |
| 325 | break; |
| 326 | devId = sbusDeviceTable[i].devId; |
| 327 | if (!devId) |
| 328 | break; |
| 329 | if (!sbus) { |
| 330 | if (devId == SBUS_DEVICE_FFB) { |
| 331 | /* |
| 332 | * All /SUNW,ffb outside of SBUS tree come before all |
| 333 | * /SUNW,afb outside of SBUS tree in Linux. |
| 334 | */ |
| 335 | if (!strcmp(prop, "afb")) |
| 336 | flags |= PROM_NODE_PREF; |
| 337 | } |
| 338 | else if (devId != SBUS_DEVICE_CG14) |
| 339 | break; |
| 340 | } |
| 341 | for (i = 0; i < 32; i++) { |
| 342 | if (!devicePtrs[i] || devicePtrs[i]->devId != devId) |
| 343 | continue; |
| 344 | if (devicePtrs[i]->node.node) { |
| 345 | if ((devicePtrs[i]->node. |
| 346 | cookie[0] & ~PROM_NODE_SIBLING) <= |
| 347 | (flags & ~PROM_NODE_SIBLING)) |
| 348 | continue; |
| 349 | for (j = i + 1, pNode = devicePtrs[i]->node; j < 32; |
| 350 | j++) { |
| 351 | if (!devicePtrs[j] || devicePtrs[j]->devId != devId) |
| 352 | continue; |
| 353 | pNode2 = devicePtrs[j]->node; |
| 354 | devicePtrs[j]->node = pNode; |
| 355 | pNode = pNode2; |
| 356 | } |
| 357 | } |
| 358 | devicePtrs[i]->node.node = node; |
| 359 | devicePtrs[i]->node.cookie[0] = flags; |
| 360 | devicePtrs[i]->node.cookie[1] = oldnode; |
| 361 | break; |
| 362 | } |
| 363 | break; |
| 364 | } |
| 365 | } while (0); |
| 366 | |
| 367 | prop = promGetProperty("name", &len); |
| 368 | if (prop && len > 0) { |
| 369 | if (!strcmp(prop, "sbus") || !strcmp(prop, "sbi")) |
| 370 | sbus = PROM_NODE_SBUS; |
| 371 | } |
| 372 | |
| 373 | nextnode = promGetChild(node); |
| 374 | if (nextnode) |
| 375 | promWalkAssignNodes(nextnode, node, sbus, devicePtrs); |
| 376 | |
| 377 | nextnode = promGetSibling(node); |
| 378 | if (nextnode) |
| 379 | promWalkAssignNodes(nextnode, node, PROM_NODE_SIBLING | sbus, |
| 380 | devicePtrs); |
| 381 | } |
| 382 | |
| 383 | void |
| 384 | sparcPromAssignNodes(void) |
| 385 | { |
| 386 | sbusDevicePtr psdp, *psdpp; |
| 387 | int n, holes = 0, i, j; |
| 388 | FILE *f; |
| 389 | sbusDevicePtr devicePtrs[32]; |
| 390 | |
| 391 | memset(devicePtrs, 0, sizeof(devicePtrs)); |
| 392 | for (psdpp = xf86SbusInfo, n = 0; (psdp = *psdpp); psdpp++, n++) { |
| 393 | if (psdp->fbNum != n) |
| 394 | holes = 1; |
| 395 | devicePtrs[psdp->fbNum] = psdp; |
| 396 | } |
| 397 | if (holes && (f = fopen("/proc/fb", "r")) != NULL) { |
| 398 | /* We could not open one of fb devices, check /proc/fb to see what |
| 399 | * were the types of the cards missed. */ |
| 400 | char buffer[64]; |
| 401 | int fbNum, devId; |
| 402 | static struct { |
| 403 | int devId; |
| 404 | char *prefix; |
| 405 | } procFbPrefixes[] = { |
| 406 | {SBUS_DEVICE_BW2, "BWtwo"}, |
| 407 | {SBUS_DEVICE_CG14, "CGfourteen"}, |
| 408 | {SBUS_DEVICE_CG6, "CGsix"}, |
| 409 | {SBUS_DEVICE_CG3, "CGthree"}, |
| 410 | {SBUS_DEVICE_FFB, "Creator"}, |
| 411 | {SBUS_DEVICE_FFB, "Elite 3D"}, |
| 412 | {SBUS_DEVICE_LEO, "Leo"}, |
| 413 | {SBUS_DEVICE_TCX, "TCX"}, |
| 414 | {0, NULL}, |
| 415 | }; |
| 416 | |
| 417 | while (fscanf(f, "%d %63s\n", &fbNum, buffer) == 2) { |
| 418 | for (i = 0; procFbPrefixes[i].devId; i++) |
| 419 | if (!strncmp(procFbPrefixes[i].prefix, buffer, |
| 420 | strlen(procFbPrefixes[i].prefix))) |
| 421 | break; |
| 422 | devId = procFbPrefixes[i].devId; |
| 423 | if (!devId) |
| 424 | continue; |
| 425 | if (devicePtrs[fbNum]) { |
| 426 | if (devicePtrs[fbNum]->devId != devId) |
| 427 | xf86ErrorF("Inconsistent /proc/fb with FBIOGATTR\n"); |
| 428 | } |
| 429 | else if (!devicePtrs[fbNum]) { |
| 430 | devicePtrs[fbNum] = psdp = xnfcalloc(sizeof(sbusDevice), 1); |
| 431 | psdp->devId = devId; |
| 432 | psdp->fbNum = fbNum; |
| 433 | psdp->fd = -2; |
| 434 | } |
| 435 | } |
| 436 | fclose(f); |
| 437 | } |
| 438 | promGetSibling(0); |
| 439 | promWalkAssignNodes(promRootNode, 0, PROM_NODE_PREF, devicePtrs); |
| 440 | for (i = 0, j = 0; i < 32; i++) |
| 441 | if (devicePtrs[i] && devicePtrs[i]->fbNum == -1) |
| 442 | j++; |
| 443 | xf86SbusInfo = xnfrealloc(xf86SbusInfo, sizeof(psdp) * (n + j + 1)); |
| 444 | for (i = 0, psdpp = xf86SbusInfo; i < 32; i++) |
| 445 | if (devicePtrs[i]) { |
| 446 | if (devicePtrs[i]->fbNum == -1) { |
| 447 | memmove(psdpp + 1, psdpp, sizeof(psdpp) * (n + 1)); |
| 448 | *psdpp = devicePtrs[i]; |
| 449 | } |
| 450 | else |
| 451 | n--; |
| 452 | } |
| 453 | } |
| 454 | |
| 455 | static char * |
| 456 | promGetReg(int type) |
| 457 | { |
| 458 | char *prop; |
| 459 | int len; |
| 460 | static char regstr[40]; |
| 461 | |
| 462 | regstr[0] = 0; |
| 463 | prop = promGetProperty("reg", &len); |
| 464 | if (prop && len >= 4) { |
| 465 | unsigned int *reg = (unsigned int *) prop; |
| 466 | |
| 467 | if (!promP1275 || (type == PROM_NODE_SBUS) || (type == PROM_NODE_EBUS)) |
| 468 | snprintf(regstr, sizeof(regstr), "@%x,%x", reg[0], reg[1]); |
| 469 | else if (type == PROM_NODE_PCI) { |
| 470 | if ((reg[0] >> 8) & 7) |
| 471 | snprintf(regstr, sizeof(regstr), "@%x,%x", |
| 472 | (reg[0] >> 11) & 0x1f, (reg[0] >> 8) & 7); |
| 473 | else |
| 474 | snprintf(regstr, sizeof(regstr), "@%x", (reg[0] >> 11) & 0x1f); |
| 475 | } |
| 476 | else if (len == 4) |
| 477 | snprintf(regstr, sizeof(regstr), "@%x", reg[0]); |
| 478 | else { |
| 479 | unsigned int regs[2]; |
| 480 | |
| 481 | /* Things get more complicated on UPA. If upa-portid exists, |
| 482 | then address is @upa-portid,second-int-in-reg, otherwise |
| 483 | it is @first-int-in-reg/16,second-int-in-reg (well, probably |
| 484 | upa-portid always exists, but just to be safe). */ |
| 485 | memcpy(regs, reg, sizeof(regs)); |
| 486 | prop = promGetProperty("upa-portid", &len); |
| 487 | if (prop && len == 4) { |
| 488 | reg = (unsigned int *) prop; |
| 489 | snprintf(regstr, sizeof(regstr), "@%x,%x", reg[0], regs[1]); |
| 490 | } |
| 491 | else |
| 492 | snprintf(regstr, sizeof(regstr), "@%x,%x", regs[0] >> 4, |
| 493 | regs[1]); |
| 494 | } |
| 495 | } |
| 496 | return regstr; |
| 497 | } |
| 498 | |
| 499 | static int |
| 500 | promWalkNode2Pathname(char *path, int parent, int node, int searchNode, |
| 501 | int type) |
| 502 | { |
| 503 | int nextnode; |
| 504 | int len, ntype = type; |
| 505 | char *prop, *p; |
| 506 | |
| 507 | prop = promGetProperty("name", &len); |
| 508 | *path = '/'; |
| 509 | if (!prop || len <= 0) |
| 510 | return 0; |
| 511 | if ((!strcmp(prop, "sbus") || !strcmp(prop, "sbi")) && !type) |
| 512 | ntype = PROM_NODE_SBUS; |
| 513 | else if (!strcmp(prop, "ebus") && type == PROM_NODE_PCI) |
| 514 | ntype = PROM_NODE_EBUS; |
| 515 | else if (!strcmp(prop, "pci") && !type) |
| 516 | ntype = PROM_NODE_PCI; |
| 517 | strcpy(path + 1, prop); |
| 518 | p = promGetReg(type); |
| 519 | if (*p) |
| 520 | strcat(path, p); |
| 521 | if (node == searchNode) |
| 522 | return 1; |
| 523 | nextnode = promGetChild(node); |
| 524 | if (nextnode && |
| 525 | promWalkNode2Pathname(strchr(path, 0), node, nextnode, searchNode, |
| 526 | ntype)) |
| 527 | return 1; |
| 528 | nextnode = promGetSibling(node); |
| 529 | if (nextnode && |
| 530 | promWalkNode2Pathname(path, parent, nextnode, searchNode, type)) |
| 531 | return 1; |
| 532 | return 0; |
| 533 | } |
| 534 | |
| 535 | char * |
| 536 | sparcPromNode2Pathname(sbusPromNodePtr pnode) |
| 537 | { |
| 538 | char *ret; |
| 539 | |
| 540 | if (!pnode->node) |
| 541 | return NULL; |
| 542 | ret = malloc(4096); |
| 543 | if (!ret) |
| 544 | return NULL; |
| 545 | if (promWalkNode2Pathname |
| 546 | (ret, promRootNode, promGetChild(promRootNode), pnode->node, 0)) |
| 547 | return ret; |
| 548 | free(ret); |
| 549 | return NULL; |
| 550 | } |
| 551 | |
| 552 | static int |
| 553 | promWalkPathname2Node(char *name, char *regstr, int parent, int type) |
| 554 | { |
| 555 | int len, node, ret; |
| 556 | char *prop, *p; |
| 557 | |
| 558 | for (;;) { |
| 559 | prop = promGetProperty("name", &len); |
| 560 | if (!prop || len <= 0) |
| 561 | return 0; |
| 562 | if ((!strcmp(prop, "sbus") || !strcmp(prop, "sbi")) && !type) |
| 563 | type = PROM_NODE_SBUS; |
| 564 | else if (!strcmp(prop, "ebus") && type == PROM_NODE_PCI) |
| 565 | type = PROM_NODE_EBUS; |
| 566 | else if (!strcmp(prop, "pci") && !type) |
| 567 | type = PROM_NODE_PCI; |
| 568 | for (node = promGetChild(parent); node; node = promGetSibling(node)) { |
| 569 | prop = promGetProperty("name", &len); |
| 570 | if (!prop || len <= 0) |
| 571 | continue; |
| 572 | if (*name && strcmp(name, prop)) |
| 573 | continue; |
| 574 | if (*regstr) { |
| 575 | p = promGetReg(type); |
| 576 | if (!*p || strcmp(p + 1, regstr)) |
| 577 | continue; |
| 578 | } |
| 579 | break; |
| 580 | } |
| 581 | if (!node) { |
| 582 | for (node = promGetChild(parent); node; node = promGetSibling(node)) { |
| 583 | ret = promWalkPathname2Node(name, regstr, node, type); |
| 584 | if (ret) |
| 585 | return ret; |
| 586 | } |
| 587 | return 0; |
| 588 | } |
| 589 | name = strchr(regstr, 0) + 1; |
| 590 | if (!*name) |
| 591 | return node; |
| 592 | p = strchr(name, '/'); |
| 593 | if (p) |
| 594 | *p = 0; |
| 595 | else |
| 596 | p = strchr(name, 0); |
| 597 | regstr = strchr(name, '@'); |
| 598 | if (regstr) |
| 599 | *regstr++ = 0; |
| 600 | else |
| 601 | regstr = p; |
| 602 | if (name == regstr) |
| 603 | return 0; |
| 604 | parent = node; |
| 605 | } |
| 606 | } |
| 607 | |
| 608 | int |
| 609 | sparcPromPathname2Node(const char *pathName) |
| 610 | { |
| 611 | int i; |
| 612 | char *name, *regstr, *p; |
| 613 | |
| 614 | i = strlen(pathName); |
| 615 | name = malloc(i + 2); |
| 616 | if (!name) |
| 617 | return 0; |
| 618 | strcpy(name, pathName); |
| 619 | name[i + 1] = 0; |
| 620 | if (name[0] != '/') { |
| 621 | free(name); |
| 622 | return 0; |
| 623 | } |
| 624 | p = strchr(name + 1, '/'); |
| 625 | if (p) |
| 626 | *p = 0; |
| 627 | else |
| 628 | p = strchr(name, 0); |
| 629 | regstr = strchr(name, '@'); |
| 630 | if (regstr) |
| 631 | *regstr++ = 0; |
| 632 | else |
| 633 | regstr = p; |
| 634 | if (name + 1 == regstr) { |
| 635 | free(name); |
| 636 | return 0; |
| 637 | } |
| 638 | promGetSibling(0); |
| 639 | i = promWalkPathname2Node(name + 1, regstr, promRootNode, 0); |
| 640 | free(name); |
| 641 | return i; |
| 642 | } |
| 643 | |
| 644 | pointer |
| 645 | xf86MapSbusMem(sbusDevicePtr psdp, unsigned long offset, unsigned long size) |
| 646 | { |
| 647 | pointer ret; |
| 648 | unsigned long pagemask = getpagesize() - 1; |
| 649 | unsigned long off = offset & ~pagemask; |
| 650 | unsigned long len = ((offset + size + pagemask) & ~pagemask) - off; |
| 651 | |
| 652 | if (psdp->fd == -1) { |
| 653 | psdp->fd = open(psdp->device, O_RDWR); |
| 654 | if (psdp->fd == -1) |
| 655 | return NULL; |
| 656 | } |
| 657 | else if (psdp->fd < 0) |
| 658 | return NULL; |
| 659 | |
| 660 | ret = (pointer) mmap(NULL, len, PROT_READ | PROT_WRITE, MAP_PRIVATE, |
| 661 | psdp->fd, off); |
| 662 | if (ret == (pointer) -1) { |
| 663 | ret = (pointer) mmap(NULL, len, PROT_READ | PROT_WRITE, MAP_SHARED, |
| 664 | psdp->fd, off); |
| 665 | } |
| 666 | if (ret == (pointer) -1) |
| 667 | return NULL; |
| 668 | |
| 669 | return (char *) ret + (offset - off); |
| 670 | } |
| 671 | |
| 672 | void |
| 673 | xf86UnmapSbusMem(sbusDevicePtr psdp, pointer addr, unsigned long size) |
| 674 | { |
| 675 | unsigned long mask = getpagesize() - 1; |
| 676 | unsigned long base = (unsigned long) addr & ~mask; |
| 677 | unsigned long len = (((unsigned long) addr + size + mask) & ~mask) - base; |
| 678 | |
| 679 | munmap((pointer) base, len); |
| 680 | } |
| 681 | |
| 682 | /* Tell OS that we are driving the HW cursor ourselves. */ |
| 683 | void |
| 684 | xf86SbusHideOsHwCursor(sbusDevicePtr psdp) |
| 685 | { |
| 686 | struct fbcursor fbcursor; |
| 687 | unsigned char zeros[8]; |
| 688 | |
| 689 | memset(&fbcursor, 0, sizeof(fbcursor)); |
| 690 | memset(&zeros, 0, sizeof(zeros)); |
| 691 | fbcursor.cmap.count = 2; |
| 692 | fbcursor.cmap.red = zeros; |
| 693 | fbcursor.cmap.green = zeros; |
| 694 | fbcursor.cmap.blue = zeros; |
| 695 | fbcursor.image = (char *) zeros; |
| 696 | fbcursor.mask = (char *) zeros; |
| 697 | fbcursor.size.x = 32; |
| 698 | fbcursor.size.y = 1; |
| 699 | fbcursor.set = FB_CUR_SETALL; |
| 700 | ioctl(psdp->fd, FBIOSCURSOR, &fbcursor); |
| 701 | } |
| 702 | |
| 703 | /* Set HW cursor colormap. */ |
| 704 | void |
| 705 | xf86SbusSetOsHwCursorCmap(sbusDevicePtr psdp, int bg, int fg) |
| 706 | { |
| 707 | struct fbcursor fbcursor; |
| 708 | unsigned char red[2], green[2], blue[2]; |
| 709 | |
| 710 | memset(&fbcursor, 0, sizeof(fbcursor)); |
| 711 | red[0] = bg >> 16; |
| 712 | green[0] = bg >> 8; |
| 713 | blue[0] = bg; |
| 714 | red[1] = fg >> 16; |
| 715 | green[1] = fg >> 8; |
| 716 | blue[1] = fg; |
| 717 | fbcursor.cmap.count = 2; |
| 718 | fbcursor.cmap.red = red; |
| 719 | fbcursor.cmap.green = green; |
| 720 | fbcursor.cmap.blue = blue; |
| 721 | fbcursor.set = FB_CUR_SETCMAP; |
| 722 | ioctl(psdp->fd, FBIOSCURSOR, &fbcursor); |
| 723 | } |