Jani Nikula | 76be749 | 2013-10-08 21:18:13 +0300 | [diff] [blame] | 1 | /* |
| 2 | * Copyright © 2013 Intel Corporation |
| 3 | * |
| 4 | * Permission is hereby granted, free of charge, to any person obtaining a |
| 5 | * copy of this software and associated documentation files (the "Software"), |
| 6 | * to deal in the Software without restriction, including without limitation |
| 7 | * the rights to use, copy, modify, merge, publish, distribute, sublicense, |
| 8 | * and/or sell copies of the Software, and to permit persons to whom the |
| 9 | * Software is furnished to do so, subject to the following conditions: |
| 10 | * |
| 11 | * The above copyright notice and this permission notice (including the next |
| 12 | * paragraph) shall be included in all copies or substantial portions of the |
| 13 | * Software. |
| 14 | * |
| 15 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
| 16 | * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
| 17 | * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL |
| 18 | * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER |
| 19 | * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING |
| 20 | * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER |
| 21 | * DEALINGS IN THE SOFTWARE. |
| 22 | * |
| 23 | * Authors: |
| 24 | * Jani Nikula <jani.nikula@intel.com> |
| 25 | * |
| 26 | */ |
| 27 | |
| 28 | #include <errno.h> |
| 29 | #include <fcntl.h> |
| 30 | #include <getopt.h> |
| 31 | #include <stdint.h> |
| 32 | #include <stdio.h> |
| 33 | #include <stdlib.h> |
| 34 | #include <string.h> |
| 35 | #include <unistd.h> |
| 36 | #include <sys/mman.h> |
| 37 | #include <sys/stat.h> |
| 38 | #include <sys/types.h> |
| 39 | |
Daniel Vetter | c03c6ce | 2014-03-22 21:34:29 +0100 | [diff] [blame] | 40 | #include "intel_io.h" |
Daniel Vetter | 6cfcd71 | 2014-03-22 20:07:35 +0100 | [diff] [blame] | 41 | #include "drmtest.h" |
Jani Nikula | 76be749 | 2013-10-08 21:18:13 +0300 | [diff] [blame] | 42 | |
| 43 | #define OPREGION_HEADER_OFFSET 0 |
| 44 | #define OPREGION_ACPI_OFFSET 0x100 |
| 45 | #define OPREGION_SWSCI_OFFSET 0x200 |
| 46 | #define OPREGION_ASLE_OFFSET 0x300 |
| 47 | #define OPREGION_VBT_OFFSET 0x400 |
| 48 | #define OPREGION_ASLE_EXT_OFFSET 0x1C00 |
| 49 | |
| 50 | #define MBOX_ACPI (1 << 0) |
| 51 | #define MBOX_SWSCI (1 << 1) |
| 52 | #define MBOX_ASLE (1 << 2) |
| 53 | #define MBOX_VBT (1 << 3) |
| 54 | #define MBOX_ASLE_EXT (1 << 4) |
| 55 | |
| 56 | struct opregion_header { |
| 57 | char sign[16]; |
| 58 | uint32_t size; |
| 59 | uint32_t over; |
| 60 | char sver[32]; |
| 61 | char vver[16]; |
| 62 | char gver[16]; |
| 63 | uint32_t mbox; |
| 64 | uint32_t dmod; |
| 65 | uint32_t pcon; |
| 66 | char dver[32]; |
| 67 | uint8_t rsv1[124]; |
| 68 | } __attribute__((packed)); |
| 69 | |
| 70 | /* OpRegion mailbox #1: public ACPI methods */ |
| 71 | struct opregion_acpi { |
| 72 | uint32_t drdy; /* driver readiness */ |
| 73 | uint32_t csts; /* notification status */ |
| 74 | uint32_t cevt; /* current event */ |
| 75 | uint8_t rsvd1[20]; |
| 76 | uint32_t didl[8]; /* supported display devices ID list */ |
| 77 | uint32_t cpdl[8]; /* currently presented display list */ |
| 78 | uint32_t cadl[8]; /* currently active display list */ |
| 79 | uint32_t nadl[8]; /* next active devices list */ |
| 80 | uint32_t aslp; /* ASL sleep time-out */ |
| 81 | uint32_t tidx; /* toggle table index */ |
| 82 | uint32_t chpd; /* current hotplug enable indicator */ |
| 83 | uint32_t clid; /* current lid state*/ |
| 84 | uint32_t cdck; /* current docking state */ |
| 85 | uint32_t sxsw; /* Sx state resume */ |
| 86 | uint32_t evts; /* ASL supported events */ |
| 87 | uint32_t cnot; /* current OS notification */ |
| 88 | uint32_t nrdy; /* driver status */ |
| 89 | uint32_t did2[7]; |
| 90 | uint32_t cpd2[7]; |
| 91 | uint8_t rsvd2[4]; |
| 92 | } __attribute__((packed)); |
| 93 | |
| 94 | /* OpRegion mailbox #2: SWSCI */ |
| 95 | struct opregion_swsci { |
| 96 | uint32_t scic; /* SWSCI command|status|data */ |
| 97 | uint32_t parm; /* command parameters */ |
| 98 | uint32_t dslp; /* driver sleep time-out */ |
| 99 | uint8_t rsvd[244]; |
| 100 | } __attribute__((packed)); |
| 101 | |
| 102 | /* OpRegion mailbox #3: ASLE */ |
| 103 | struct opregion_asle { |
| 104 | uint32_t ardy; /* driver readiness */ |
| 105 | uint32_t aslc; /* ASLE interrupt command */ |
| 106 | uint32_t tche; /* technology enabled indicator */ |
| 107 | uint32_t alsi; /* current ALS illuminance reading */ |
| 108 | uint32_t bclp; /* backlight brightness to set */ |
| 109 | uint32_t pfit; /* panel fitting state */ |
| 110 | uint32_t cblv; /* current brightness level */ |
| 111 | uint16_t bclm[20]; /* backlight level duty cycle mapping table */ |
| 112 | uint32_t cpfm; /* current panel fitting mode */ |
| 113 | uint32_t epfm; /* enabled panel fitting modes */ |
| 114 | uint8_t plut_header; /* panel LUT and identifier */ |
| 115 | uint8_t plut_identifier[10]; /* panel LUT and identifier */ |
| 116 | uint8_t plut[63]; /* panel LUT and identifier */ |
| 117 | uint32_t pfmb; /* PWM freq and min brightness */ |
| 118 | uint32_t ccdv; |
| 119 | uint32_t pcft; |
| 120 | uint32_t srot; |
| 121 | uint32_t iuer; |
| 122 | uint8_t fdss[8]; |
| 123 | uint32_t fdsp; |
| 124 | uint32_t stat; |
Jani Nikula | bdf7b1c | 2015-12-21 15:22:08 +0200 | [diff] [blame] | 125 | uint64_t rvda; /* Physical address of raw vbt data */ |
| 126 | uint32_t rvds; /* Size of raw vbt data */ |
| 127 | uint8_t rsvd[58]; |
Jani Nikula | 76be749 | 2013-10-08 21:18:13 +0300 | [diff] [blame] | 128 | } __attribute__((packed)); |
| 129 | |
| 130 | /* OpRegion mailbox #4: VBT */ |
| 131 | struct opregion_vbt { |
| 132 | char product_string[20]; |
| 133 | /* rest ignored */ |
| 134 | } __attribute__((packed)); |
| 135 | |
| 136 | /* OpRegion mailbox #5: ASLE extension */ |
| 137 | struct opregion_asle_ext { |
| 138 | uint32_t phed; |
| 139 | uint8_t bddc[256]; |
| 140 | } __attribute__((packed)); |
| 141 | |
| 142 | static uint32_t decode_header(const void *buffer) |
| 143 | { |
| 144 | const struct opregion_header *header = buffer; |
| 145 | char *s; |
| 146 | |
| 147 | if (strncmp("IntelGraphicsMem", header->sign, sizeof(header->sign))) { |
| 148 | fprintf(stderr, "invalid opregion signature\n"); |
| 149 | return 0; |
| 150 | } |
| 151 | |
| 152 | printf("OpRegion Header:\n"); |
| 153 | |
| 154 | s = strndup(header->sign, sizeof(header->sign)); |
| 155 | printf("\tsign:\t%s\n", s); |
| 156 | free(s); |
| 157 | |
| 158 | printf("\tsize:\t0x%08x\n", header->size); |
| 159 | printf("\tover:\t0x%08x\n", header->over); |
| 160 | |
| 161 | s = strndup(header->sver, sizeof(header->sver)); |
| 162 | printf("\tsver:\t%s\n", s); |
| 163 | free(s); |
| 164 | |
| 165 | s = strndup(header->vver, sizeof(header->vver)); |
| 166 | printf("\tvver:\t%s\n", s); |
| 167 | free(s); |
| 168 | |
| 169 | s = strndup(header->gver, sizeof(header->gver)); |
| 170 | printf("\tgver:\t%s\n", s); |
| 171 | free(s); |
| 172 | |
| 173 | printf("\tmbox:\t0x%08x\n", header->mbox); |
| 174 | |
| 175 | printf("\tdmod:\t0x%08x\n", header->dmod); |
| 176 | printf("\tpcon:\t0x%08x\n", header->pcon); |
| 177 | |
| 178 | s = strndup(header->dver, sizeof(header->dver)); |
| 179 | printf("\tdver:\t%s\n", s); |
| 180 | free(s); |
| 181 | |
| 182 | printf("\n"); |
| 183 | |
| 184 | return header->mbox; |
| 185 | } |
| 186 | |
| 187 | static void decode_acpi(const void *buffer) |
| 188 | { |
| 189 | const struct opregion_acpi *acpi = buffer; |
| 190 | int i; |
| 191 | |
| 192 | printf("OpRegion Mailbox 1: Public ACPI Methods:\n"); |
| 193 | |
| 194 | printf("\tdrdy:\t0x%08x\n", acpi->drdy); |
| 195 | printf("\tcsts:\t0x%08x\n", acpi->csts); |
| 196 | printf("\tcevt:\t0x%08x\n", acpi->cevt); |
| 197 | |
| 198 | printf("\tdidl:\n"); |
| 199 | for (i = 0; i < ARRAY_SIZE(acpi->didl); i++) |
| 200 | printf("\t\tdidl[%d]:\t0x%08x\n", i, acpi->didl[i]); |
| 201 | |
| 202 | printf("\tcpdl:\n"); |
| 203 | for (i = 0; i < ARRAY_SIZE(acpi->cpdl); i++) |
| 204 | printf("\t\tcpdl[%d]:\t0x%08x\n", i, acpi->cpdl[i]); |
| 205 | |
| 206 | printf("\tcadl:\n"); |
| 207 | for (i = 0; i < ARRAY_SIZE(acpi->cadl); i++) |
| 208 | printf("\t\tcadl[%d]:\t0x%08x\n", i, acpi->cadl[i]); |
| 209 | |
| 210 | printf("\tnadl:\n"); |
| 211 | for (i = 0; i < ARRAY_SIZE(acpi->nadl); i++) |
| 212 | printf("\t\tnadl[%d]:\t0x%08x\n", i, acpi->nadl[i]); |
| 213 | |
| 214 | printf("\taslp:\t0x%08x\n", acpi->aslp); |
| 215 | printf("\ttidx:\t0x%08x\n", acpi->tidx); |
| 216 | printf("\tchpd:\t0x%08x\n", acpi->chpd); |
| 217 | printf("\tclid:\t0x%08x\n", acpi->clid); |
| 218 | printf("\tcdck:\t0x%08x\n", acpi->cdck); |
| 219 | printf("\tsxsw:\t0x%08x\n", acpi->sxsw); |
| 220 | printf("\tevts:\t0x%08x\n", acpi->evts); |
| 221 | printf("\tcnot:\t0x%08x\n", acpi->cnot); |
| 222 | printf("\tnrdy:\t0x%08x\n", acpi->nrdy); |
| 223 | |
| 224 | printf("\tdid2:\n"); |
| 225 | for (i = 0; i < ARRAY_SIZE(acpi->did2); i++) |
| 226 | printf("\t\tdid2[%d]:\t0x%08x\n", i, acpi->did2[i]); |
| 227 | |
| 228 | printf("\tcpd2:\n"); |
| 229 | for (i = 0; i < ARRAY_SIZE(acpi->cpd2); i++) |
| 230 | printf("\t\tcpd2[%d]:\t0x%08x\n", i, acpi->cpd2[i]); |
| 231 | |
| 232 | printf("\n"); |
| 233 | } |
| 234 | |
| 235 | static void decode_swsci(const void *buffer) |
| 236 | { |
| 237 | const struct opregion_swsci *swsci = buffer; |
| 238 | |
| 239 | printf("OpRegion Mailbox 2: Software SCI Interface (SWSCI):\n"); |
| 240 | |
| 241 | printf("\tscic:\t0x%08x\n", swsci->scic); |
| 242 | printf("\tparm:\t0x%08x\n", swsci->parm); |
| 243 | printf("\tdslp:\t0x%08x\n", swsci->dslp); |
| 244 | |
| 245 | printf("\n"); |
| 246 | } |
| 247 | |
| 248 | static void decode_asle(const void *buffer) |
| 249 | { |
| 250 | const struct opregion_asle *asle = buffer; |
| 251 | int i; |
| 252 | |
| 253 | printf("OpRegion Mailbox 3: BIOS to Driver Notification (ASLE):\n"); |
| 254 | |
| 255 | printf("\tardy:\t0x%08x\n", asle->ardy); |
| 256 | printf("\taslc:\t0x%08x\n", asle->aslc); |
| 257 | printf("\ttche:\t0x%08x\n", asle->tche); |
| 258 | printf("\talsi:\t0x%08x\n", asle->alsi); |
| 259 | printf("\tbclp:\t0x%08x\n", asle->bclp); |
| 260 | printf("\tpfit:\t0x%08x\n", asle->pfit); |
| 261 | printf("\tcblv:\t0x%08x\n", asle->cblv); |
| 262 | |
| 263 | printf("\tbclm:\n"); |
Jani Nikula | 6d3c917 | 2013-10-08 21:18:14 +0300 | [diff] [blame] | 264 | for (i = 0; i < ARRAY_SIZE(asle->bclm); i++) { |
| 265 | int valid = asle->bclm[i] & (1 << 15); |
| 266 | int percentage = (asle->bclm[i] & 0x7f00) >> 8; |
| 267 | int duty_cycle = asle->bclm[i] & 0xff; |
| 268 | |
| 269 | printf("\t\tbclm[%d]:\t0x%04x", i, asle->bclm[i]); |
| 270 | if (valid) |
| 271 | printf(" (%3d%% -> 0x%02x)\n", percentage, duty_cycle); |
| 272 | else |
| 273 | printf("\n"); |
| 274 | |
| 275 | } |
Jani Nikula | 76be749 | 2013-10-08 21:18:13 +0300 | [diff] [blame] | 276 | |
| 277 | printf("\tcpfm:\t0x%08x\n", asle->cpfm); |
| 278 | printf("\tepfm:\t0x%08x\n", asle->epfm); |
| 279 | |
| 280 | printf("\tplut header:\t0x%02x\n", asle->plut_header); |
| 281 | |
| 282 | printf("\tplut identifier:"); |
| 283 | for (i = 0; i < ARRAY_SIZE(asle->plut_identifier); i++) |
| 284 | printf(" %02x", asle->plut_identifier[i]); |
| 285 | printf("\n"); |
| 286 | |
| 287 | printf("\tplut:\n"); |
| 288 | for (i = 0; i < ARRAY_SIZE(asle->plut); i++) { |
| 289 | const int COLUMNS = 7; |
| 290 | |
| 291 | if (i % COLUMNS == 0) |
| 292 | printf("\t\tplut[%d]:\t", i / COLUMNS); |
| 293 | |
| 294 | printf("%02x ", asle->plut[i]); |
| 295 | |
| 296 | if (i % COLUMNS == COLUMNS - 1) |
| 297 | printf("\n"); |
| 298 | } |
| 299 | |
| 300 | printf("\tpfmb:\t0x%08x\n", asle->pfmb); |
| 301 | printf("\tccdv:\t0x%08x\n", asle->ccdv); |
| 302 | printf("\tpcft:\t0x%08x\n", asle->pcft); |
| 303 | printf("\tsrot:\t0x%08x\n", asle->srot); |
| 304 | printf("\tiuer:\t0x%08x\n", asle->iuer); |
| 305 | |
| 306 | printf("\tfdss:\t"); |
| 307 | for (i = 0; i < ARRAY_SIZE(asle->fdss); i++) |
| 308 | printf("%02x ", asle->fdss[i]); |
| 309 | printf("\n"); |
| 310 | |
| 311 | printf("\tfdsp:\t0x%08x\n", asle->fdsp); |
| 312 | printf("\tstat:\t0x%08x\n", asle->stat); |
Jani Nikula | bdf7b1c | 2015-12-21 15:22:08 +0200 | [diff] [blame] | 313 | printf("\trvda:\t0x%016lx\n", asle->rvda); |
| 314 | printf("\trvds:\t0x%08x\n", asle->rvds); |
Jani Nikula | 76be749 | 2013-10-08 21:18:13 +0300 | [diff] [blame] | 315 | |
| 316 | printf("\n"); |
| 317 | } |
| 318 | |
| 319 | static void decode_vbt(const void *buffer) |
| 320 | { |
| 321 | const struct opregion_vbt *vbt = buffer; |
| 322 | char *s; |
| 323 | |
| 324 | printf("OpRegion Mailbox 4: Video BIOS Table (VBT):\n"); |
| 325 | |
| 326 | s = strndup(vbt->product_string, sizeof(vbt->product_string)); |
| 327 | printf("\tproduct string:\t%s\n", s); |
| 328 | free(s); |
| 329 | |
| 330 | printf("\t(use intel_bios_reader to decode the VBT)\n"); |
| 331 | |
| 332 | printf("\n"); |
| 333 | } |
| 334 | |
| 335 | static void decode_asle_ext(const void *buffer) |
| 336 | { |
| 337 | const struct opregion_asle_ext *asle_ext = buffer; |
| 338 | int i; |
| 339 | |
| 340 | printf("OpRegion Mailbox 5: BIOS to Driver Notification Extension:\n"); |
| 341 | |
| 342 | printf("\tphed:\t0x%08x\n", asle_ext->phed); |
| 343 | |
| 344 | printf("\tbddc:\n"); |
| 345 | for (i = 0; i < ARRAY_SIZE(asle_ext->bddc); i++) { |
| 346 | const int COLUMNS = 16; |
| 347 | |
| 348 | if (i % COLUMNS == 0) |
| 349 | printf("\t\tbddc[0x%02x]:\t", i); |
| 350 | |
| 351 | printf("%02x ", asle_ext->bddc[i]); |
| 352 | |
| 353 | if (i % COLUMNS == COLUMNS - 1) |
| 354 | printf("\n"); |
| 355 | } |
| 356 | |
| 357 | printf("\n"); |
| 358 | } |
| 359 | |
| 360 | static void decode_opregion(const uint8_t *opregion, int size) |
| 361 | { |
| 362 | uint32_t mbox; |
| 363 | |
| 364 | /* XXX: allow decoding up to size */ |
| 365 | if (OPREGION_ASLE_EXT_OFFSET + sizeof(struct opregion_asle_ext) > size) { |
| 366 | fprintf(stderr, "buffer too small\n"); |
| 367 | return; |
| 368 | } |
| 369 | |
| 370 | mbox = decode_header(opregion + OPREGION_HEADER_OFFSET); |
| 371 | if (mbox & MBOX_ACPI) |
| 372 | decode_acpi(opregion + OPREGION_ACPI_OFFSET); |
| 373 | if (mbox & MBOX_SWSCI) |
| 374 | decode_swsci(opregion + OPREGION_SWSCI_OFFSET); |
| 375 | if (mbox & MBOX_ASLE) |
| 376 | decode_asle(opregion + OPREGION_ASLE_OFFSET); |
| 377 | if (mbox & MBOX_VBT) |
| 378 | decode_vbt(opregion + OPREGION_VBT_OFFSET); |
| 379 | if (mbox & MBOX_ASLE_EXT) |
| 380 | decode_asle_ext(opregion + OPREGION_ASLE_EXT_OFFSET); |
| 381 | } |
| 382 | |
| 383 | int main(int argc, char *argv[]) |
| 384 | { |
| 385 | const char *filename = "/sys/kernel/debug/dri/0/i915_opregion"; |
| 386 | int fd; |
| 387 | struct stat finfo; |
| 388 | uint8_t *opregion; |
| 389 | int c, option_index = 0; |
| 390 | |
| 391 | static struct option long_options[] = { |
| 392 | { "file", required_argument, 0, 'f' }, |
| 393 | { "help", no_argument, 0, 'h' }, |
| 394 | { 0 }, |
| 395 | }; |
| 396 | |
| 397 | while ((c = getopt_long(argc, argv, "hf:", |
| 398 | long_options, &option_index)) != -1) { |
| 399 | switch (c) { |
| 400 | case 'h': |
| 401 | printf("usage: intel_opregion_decode [-f|--file=<input>]\n"); |
| 402 | return 0; |
| 403 | case 'f': |
| 404 | filename = optarg; |
| 405 | break; |
| 406 | default: |
| 407 | fprintf(stderr, "unkown command options\n"); |
| 408 | return 1; |
| 409 | } |
| 410 | } |
| 411 | |
| 412 | fd = open(filename, O_RDONLY); |
| 413 | if (fd == -1) { |
| 414 | printf("Couldn't open \"%s\": %s\n", filename, strerror(errno)); |
| 415 | return 1; |
| 416 | } |
| 417 | |
| 418 | if (stat(filename, &finfo)) { |
| 419 | printf("failed to stat \"%s\": %s\n", filename, strerror(errno)); |
| 420 | return 1; |
| 421 | } |
| 422 | |
| 423 | if (finfo.st_size == 0) { |
| 424 | int len = 0, ret; |
| 425 | finfo.st_size = 8192; |
| 426 | opregion = malloc(finfo.st_size); |
| 427 | while ((ret = read(fd, opregion + len, finfo.st_size - len))) { |
| 428 | if (ret < 0) { |
| 429 | printf("failed to read \"%s\": %s\n", filename, |
| 430 | strerror(errno)); |
| 431 | return 1; |
| 432 | } |
| 433 | |
| 434 | len += ret; |
| 435 | if (len == finfo.st_size) { |
| 436 | finfo.st_size *= 2; |
| 437 | opregion = realloc(opregion, finfo.st_size); |
| 438 | } |
| 439 | } |
| 440 | } else { |
| 441 | opregion = mmap(NULL, finfo.st_size, PROT_READ, MAP_SHARED, |
| 442 | fd, 0); |
| 443 | if (opregion == MAP_FAILED) { |
| 444 | printf("failed to map \"%s\": %s\n", filename, |
| 445 | strerror(errno)); |
| 446 | return 1; |
| 447 | } |
| 448 | } |
| 449 | |
| 450 | decode_opregion(opregion, finfo.st_size); |
| 451 | |
| 452 | return 0; |
| 453 | } |