usr.sbin/acpi/acpidump/acpi.c

   1 /*-
   2  * Copyright (c) 1998 Doug Rabson
   3  * Copyright (c) 2000 Mitsuru IWASAKI <iwasaki@FreeBSD.org>
   4  * All rights reserved.
   5  *
   6  * Redistribution and use in source and binary forms, with or without
   7  * modification, are permitted provided that the following conditions
   8  * are met:
   9  * 1. Redistributions of source code must retain the above copyright
  10  *    notice, this list of conditions and the following disclaimer.
  11  * 2. Redistributions in binary form must reproduce the above copyright
  12  *    notice, this list of conditions and the following disclaimer in the
  13  *    documentation and/or other materials provided with the distribution.
  14  *
  15  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
  16  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  17  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  18  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
  19  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  20  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  21  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  22  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  23  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  24  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  25  * SUCH DAMAGE.
  26  *
  27  *      $FreeBSD: src/usr.sbin/acpi/acpidump/acpi.c,v 1.25 2004/06/30 03:23:51 njl Exp $
  28  *      $DragonFly: src/usr.sbin/acpi/acpidump/acpi.c,v 1.1 2004/07/05 00:22:43 dillon Exp $
  29  */
  30
  31 #include <sys/param.h>
  32 #include <sys/endian.h>
  33 #include <sys/stat.h>
  34 #include <sys/wait.h>
  35 #include <assert.h>
  36 #include <err.h>
  37 #include <fcntl.h>
  38 #include <stdio.h>
  39 #include <string.h>
  40 #include <unistd.h>
  41
  42 #include "acpidump.h"
  43
  44 #define BEGIN_COMMENT   "/*\n"
  45 #define END_COMMENT     " */\n"
  46
  47 static void     acpi_print_string(char *s, size_t length);
  48 static void     acpi_print_gas(struct ACPIgas *gas);
  49 static int      acpi_get_fadt_revision(struct FADTbody *fadt);
  50 static void     acpi_handle_fadt(struct ACPIsdt *fadt);
  51 static void     acpi_print_cpu(u_char cpu_id);
  52 static void     acpi_print_local_apic(u_char cpu_id, u_char apic_id,
  53                                       u_int32_t flags);
  54 static void     acpi_print_io_apic(u_char apic_id, u_int32_t int_base,
  55                                    u_int64_t apic_addr);
  56 static void     acpi_print_mps_flags(u_int16_t flags);
  57 static void     acpi_print_intr(u_int32_t intr, u_int16_t mps_flags);
  58 static void     acpi_print_apic(struct MADT_APIC *mp);
  59 static void     acpi_handle_apic(struct ACPIsdt *sdp);
  60 static void     acpi_handle_hpet(struct ACPIsdt *sdp);
  61 static void     acpi_print_sdt(struct ACPIsdt *sdp);
  62 static void     acpi_print_fadt(struct ACPIsdt *sdp);
  63 static void     acpi_print_facs(struct FACSbody *facs);
  64 static void     acpi_print_dsdt(struct ACPIsdt *dsdp);
  65 static struct ACPIsdt *acpi_map_sdt(vm_offset_t pa);
  66 static void     acpi_print_rsd_ptr(struct ACPIrsdp *rp);
  67 static void     acpi_handle_rsdt(struct ACPIsdt *rsdp);
  68
  69 /* Size of an address. 32-bit for ACPI 1.0, 64-bit for ACPI 2.0 and up. */
  70 static int addr_size;
  71
  72 /*
  73  * XXX: borrow endian-conversion functions from FreeBSD-CURRENT's endian.h
  74  */
  75 static __inline uint32_t
  76 le32dec(const void *pp)
  77 {
  78         unsigned char const *p = (unsigned char const *)pp;
  79
  80         return ((p[3] << 24) | (p[2] << 16) | (p[1] << 8) | p[0]);
  81 }
  82
  83 static __inline uint64_t
  84 le64dec(const void *pp)
  85 {
  86         unsigned char const *p = (unsigned char const *)pp;
  87
  88         return (((uint64_t)le32dec(p + 4) << 32) | le32dec(p));
  89 }
  90
  91 static void
  92 acpi_print_string(char *s, size_t length)
  93 {
  94         int     c;
  95
  96         /* Trim trailing spaces and NULLs */
  97         while (length > 0 && (s[length - 1] == ' ' || s[length - 1] == '\0'))
  98                 length--;
  99
 100         while (length--) {
 101                 c = *s++;
 102                 putchar(c);
 103         }
 104 }
 105
 106 static void
 107 acpi_print_gas(struct ACPIgas *gas)
 108 {
 109         switch(gas->address_space_id) {
 110         case ACPI_GAS_MEMORY:
 111                 printf("0x%08lx:%u[%u] (Memory)", (u_long)gas->address,
 112                        gas->bit_offset, gas->bit_width);
 113                 break;
 114         case ACPI_GAS_IO:
 115                 printf("0x%02lx:%u[%u] (IO)", (u_long)gas->address,
 116                        gas->bit_offset, gas->bit_width);
 117                 break;
 118         case ACPI_GAS_PCI:
 119                 printf("%x:%x+0x%x (PCI)", (uint16_t)(gas->address >> 32),
 120                        (uint16_t)((gas->address >> 16) & 0xffff),
 121                        (uint16_t)gas->address);
 122                 break;
 123         /* XXX How to handle these below? */
 124         case ACPI_GAS_EMBEDDED:
 125                 printf("0x%x:%u[%u] (EC)", (uint16_t)gas->address,
 126                        gas->bit_offset, gas->bit_width);
 127                 break;
 128         case ACPI_GAS_SMBUS:
 129                 printf("0x%x:%u[%u] (SMBus)", (uint16_t)gas->address,
 130                        gas->bit_offset, gas->bit_width);
 131                 break;
 132         case ACPI_GAS_FIXED:
 133         default:
 134                 printf("0x%08lx (?)", (u_long)gas->address);
 135                 break;
 136         }
 137 }
 138
 139 /* The FADT revision indicates whether we use the DSDT or X_DSDT addresses. */
 140 static int
 141 acpi_get_fadt_revision(struct FADTbody *fadt)
 142 {
 143         int fadt_revision;
 144
 145         /* Set the FADT revision separately from the RSDP version. */
 146         if (addr_size == 8) {
 147                 fadt_revision = 2;
 148
 149                 /*
 150                  * A few systems (e.g., IBM T23) have an RSDP that claims
 151                  * revision 2 but the 64 bit addresses are invalid.  If
 152                  * revision 2 and the 32 bit address is non-zero but the
 153                  * 32 and 64 bit versions don't match, prefer the 32 bit
 154                  * version for all subsequent tables.
 155                  */
 156                 if (fadt->facs_ptr != 0 &&
 157                     (fadt->x_facs_ptr & 0xffffffff) != fadt->facs_ptr)
 158                         fadt_revision = 1;
 159         } else
 160                 fadt_revision = 1;
 161         return (fadt_revision);
 162 }
 163
 164 static void
 165 acpi_handle_fadt(struct ACPIsdt *sdp)
 166 {
 167         struct ACPIsdt  *dsdp;
 168         struct FACSbody *facs;
 169         struct FADTbody *fadt;
 170         int             fadt_revision;
 171
 172         fadt = (struct FADTbody *)sdp->body;
 173         acpi_print_fadt(sdp);
 174
 175         fadt_revision = acpi_get_fadt_revision(fadt);
 176         if (fadt_revision == 1)
 177                 facs = (struct FACSbody *)acpi_map_sdt(fadt->facs_ptr);
 178         else
 179                 facs = (struct FACSbody *)acpi_map_sdt(fadt->x_facs_ptr);
 180         if (memcmp(facs->signature, "FACS", 4) != 0 || facs->len < 64)
 181                 errx(1, "FACS is corrupt");
 182         acpi_print_facs(facs);
 183
 184         if (fadt_revision == 1)
 185                 dsdp = (struct ACPIsdt *)acpi_map_sdt(fadt->dsdt_ptr);
 186         else
 187                 dsdp = (struct ACPIsdt *)acpi_map_sdt(fadt->x_dsdt_ptr);
 188         if (acpi_checksum(dsdp, dsdp->len))
 189                 errx(1, "DSDT is corrupt");
 190         acpi_print_dsdt(dsdp);
 191 }
 192
 193 static void
 194 acpi_print_cpu(u_char cpu_id)
 195 {
 196
 197         printf("\tACPI CPU=");
 198         if (cpu_id == 0xff)
 199                 printf("ALL\n");
 200         else
 201                 printf("%d\n", (u_int)cpu_id);
 202 }
 203
 204 static void
 205 acpi_print_local_apic(u_char cpu_id, u_char apic_id, u_int32_t flags)
 206 {
 207         acpi_print_cpu(cpu_id);
 208         printf("\tFlags={");
 209         if (flags & ACPI_MADT_APIC_LOCAL_FLAG_ENABLED)
 210                 printf("ENABLED");
 211         else
 212                 printf("DISABLED");
 213         printf("}\n");
 214         printf("\tAPIC ID=%d\n", (u_int)apic_id);
 215 }
 216
 217 static void
 218 acpi_print_io_apic(u_char apic_id, u_int32_t int_base, u_int64_t apic_addr)
 219 {
 220         printf("\tAPIC ID=%d\n", (u_int)apic_id);
 221         printf("\tINT BASE=%d\n", int_base);
 222         printf("\tADDR=0x%016jx\n", apic_addr);
 223 }
 224
 225 static void
 226 acpi_print_mps_flags(u_int16_t flags)
 227 {
 228
 229         printf("\tFlags={Polarity=");
 230         switch (flags & MPS_INT_FLAG_POLARITY_MASK) {
 231         case MPS_INT_FLAG_POLARITY_CONFORM:
 232                 printf("conforming");
 233                 break;
 234         case MPS_INT_FLAG_POLARITY_HIGH:
 235                 printf("active-hi");
 236                 break;
 237         case MPS_INT_FLAG_POLARITY_LOW:
 238                 printf("active-lo");
 239                 break;
 240         default:
 241                 printf("0x%x", flags & MPS_INT_FLAG_POLARITY_MASK);
 242                 break;
 243         }
 244         printf(", Trigger=");
 245         switch (flags & MPS_INT_FLAG_TRIGGER_MASK) {
 246         case MPS_INT_FLAG_TRIGGER_CONFORM:
 247                 printf("conforming");
 248                 break;
 249         case MPS_INT_FLAG_TRIGGER_EDGE:
 250                 printf("edge");
 251                 break;
 252         case MPS_INT_FLAG_TRIGGER_LEVEL:
 253                 printf("level");
 254                 break;
 255         default:
 256                 printf("0x%x", (flags & MPS_INT_FLAG_TRIGGER_MASK) >> 2);
 257         }
 258         printf("}\n");
 259 }
 260
 261 static void
 262 acpi_print_intr(u_int32_t intr, u_int16_t mps_flags)
 263 {
 264
 265         printf("\tINTR=%d\n", (u_int)intr);
 266         acpi_print_mps_flags(mps_flags);
 267 }
 268
 269 const char *apic_types[] = { "Local APIC", "IO APIC", "INT Override", "NMI",
 270                              "Local NMI", "Local APIC Override", "IO SAPIC",
 271                              "Local SAPIC", "Platform Interrupt" };
 272 const char *platform_int_types[] = { "PMI", "INIT",
 273                                      "Corrected Platform Error" };
 274
 275 static void
 276 acpi_print_apic(struct MADT_APIC *mp)
 277 {
 278
 279         printf("\tType=%s\n", apic_types[mp->type]);
 280         switch (mp->type) {
 281         case ACPI_MADT_APIC_TYPE_LOCAL_APIC:
 282                 acpi_print_local_apic(mp->body.local_apic.cpu_id,
 283                     mp->body.local_apic.apic_id, mp->body.local_apic.flags);
 284                 break;
 285         case ACPI_MADT_APIC_TYPE_IO_APIC:
 286                 acpi_print_io_apic(mp->body.io_apic.apic_id,
 287                     mp->body.io_apic.int_base,
 288                     mp->body.io_apic.apic_addr);
 289                 break;
 290         case ACPI_MADT_APIC_TYPE_INT_OVERRIDE:
 291                 printf("\tBUS=%d\n", (u_int)mp->body.int_override.bus);
 292                 printf("\tIRQ=%d\n", (u_int)mp->body.int_override.source);
 293                 acpi_print_intr(mp->body.int_override.intr,
 294                     mp->body.int_override.mps_flags);
 295                 break;
 296         case ACPI_MADT_APIC_TYPE_NMI:
 297                 acpi_print_intr(mp->body.nmi.intr, mp->body.nmi.mps_flags);
 298                 break;
 299         case ACPI_MADT_APIC_TYPE_LOCAL_NMI:
 300                 acpi_print_cpu(mp->body.local_nmi.cpu_id);
 301                 printf("\tLINT Pin=%d\n", mp->body.local_nmi.lintpin);
 302                 acpi_print_mps_flags(mp->body.local_nmi.mps_flags);
 303                 break;
 304         case ACPI_MADT_APIC_TYPE_LOCAL_OVERRIDE:
 305                 printf("\tLocal APIC ADDR=0x%016jx\n",
 306                     mp->body.local_apic_override.apic_addr);
 307                 break;
 308         case ACPI_MADT_APIC_TYPE_IO_SAPIC:
 309                 acpi_print_io_apic(mp->body.io_sapic.apic_id,
 310                     mp->body.io_sapic.int_base,
 311                     mp->body.io_sapic.apic_addr);
 312                 break;
 313         case ACPI_MADT_APIC_TYPE_LOCAL_SAPIC:
 314                 acpi_print_local_apic(mp->body.local_sapic.cpu_id,
 315                     mp->body.local_sapic.apic_id, mp->body.local_sapic.flags);
 316                 printf("\tAPIC EID=%d\n", (u_int)mp->body.local_sapic.apic_eid);
 317                 break;
 318         case ACPI_MADT_APIC_TYPE_INT_SRC:
 319                 printf("\tType=%s\n",
 320                     platform_int_types[mp->body.int_src.type]);
 321                 printf("\tCPU ID=%d\n", (u_int)mp->body.int_src.cpu_id);
 322                 printf("\tCPU EID=%d\n", (u_int)mp->body.int_src.cpu_id);
 323                 printf("\tSAPIC Vector=%d\n",
 324                     (u_int)mp->body.int_src.sapic_vector);
 325                 acpi_print_intr(mp->body.int_src.intr,
 326                     mp->body.int_src.mps_flags);
 327                 break;
 328         default:
 329                 printf("\tUnknown type %d\n", (u_int)mp->type);
 330                 break;
 331         }
 332 }
 333
 334 static void
 335 acpi_handle_apic(struct ACPIsdt *sdp)
 336 {
 337         struct MADTbody *madtp;
 338         struct MADT_APIC *madt_apicp;
 339
 340         printf(BEGIN_COMMENT);
 341         acpi_print_sdt(sdp);
 342         madtp = (struct MADTbody *) sdp->body;
 343         printf("\tLocal APIC ADDR=0x%08x\n", madtp->lapic_addr);
 344         printf("\tFlags={");
 345         if (madtp->flags & ACPI_APIC_FLAG_PCAT_COMPAT)
 346                 printf("PC-AT");
 347         printf("}\n");
 348         madt_apicp = (struct MADT_APIC *)madtp->body;
 349         while (((uintptr_t)madt_apicp) - ((uintptr_t)sdp) < sdp->len) {
 350                 printf("\n");
 351                 acpi_print_apic(madt_apicp);
 352                 madt_apicp = (struct MADT_APIC *) ((char *)madt_apicp +
 353                     madt_apicp->len);
 354         }
 355         printf(END_COMMENT);
 356 }
 357
 358 static void
 359 acpi_handle_hpet(struct ACPIsdt *sdp)
 360 {
 361         struct HPETbody *hpetp;
 362
 363         printf(BEGIN_COMMENT);
 364         acpi_print_sdt(sdp);
 365         hpetp = (struct HPETbody *) sdp->body;
 366         printf("\tHPET Number=%d\n", hpetp->hpet_number);
 367         printf("\tADDR=0x%08x\n", hpetp->base_addr);
 368         printf("\tHW Rev=0x%x\n", hpetp->block_hwrev);
 369         printf("\tComparitors=%d\n", hpetp->block_comparitors);
 370         printf("\tCounter Size=%d\n", hpetp->block_counter_size);
 371         printf("\tLegacy IRQ routing capable={");
 372         if (hpetp->block_legacy_capable)
 373                 printf("TRUE}\n");
 374         else
 375                 printf("FALSE}\n");
 376         printf("\tPCI Vendor ID=0x%04x\n", hpetp->block_pcivendor);
 377         printf("\tMinimal Tick=%d\n", hpetp->clock_tick);
 378         printf(END_COMMENT);
 379 }
 380
 381 static void
 382 acpi_handle_ecdt(struct ACPIsdt *sdp)
 383 {
 384         struct ECDTbody *ecdt;
 385
 386         printf(BEGIN_COMMENT);
 387         acpi_print_sdt(sdp);
 388         ecdt = (struct ECDTbody *) sdp->body;
 389         printf("\tEC_CONTROL=");
 390         acpi_print_gas(&ecdt->ec_control);
 391         printf("\n\tEC_DATA=");
 392         acpi_print_gas(&ecdt->ec_data);
 393         printf("\n\tUID=%#x, ", ecdt->uid);
 394         printf("GPE_BIT=%#x\n", ecdt->gpe_bit);
 395         printf("\tEC_ID=%s\n", ecdt->ec_id);
 396         printf(END_COMMENT);
 397 }
 398
 399 static void
 400 acpi_print_sdt(struct ACPIsdt *sdp)
 401 {
 402         printf("  ");
 403         acpi_print_string(sdp->signature, 4);
 404         printf(": Length=%d, Revision=%d, Checksum=%d,\n",
 405                sdp->len, sdp->rev, sdp->check);
 406         printf("\tOEMID=");
 407         acpi_print_string(sdp->oemid, 6);
 408         printf(", OEM Table ID=");
 409         acpi_print_string(sdp->oemtblid, 8);
 410         printf(", OEM Revision=0x%x,\n", sdp->oemrev);
 411         printf("\tCreator ID=");
 412         acpi_print_string(sdp->creator, 4);
 413         printf(", Creator Revision=0x%x\n", sdp->crerev);
 414 }
 415
 416 static void
 417 acpi_print_rsdt(struct ACPIsdt *rsdp)
 418 {
 419         int     i, entries;
 420         u_long  addr;
 421
 422         printf(BEGIN_COMMENT);
 423         acpi_print_sdt(rsdp);
 424         entries = (rsdp->len - SIZEOF_SDT_HDR) / addr_size;
 425         printf("\tEntries={ ");
 426         for (i = 0; i < entries; i++) {
 427                 if (i > 0)
 428                         printf(", ");
 429                 switch (addr_size) {
 430                 case 4:
 431                         addr = le32dec((char*)rsdp->body + i * addr_size);
 432                         break;
 433                 case 8:
 434                         addr = le64dec((char*)rsdp->body + i * addr_size);
 435                         break;
 436                 default:
 437                         addr = 0;
 438                 }
 439                 assert(addr != 0);
 440                 printf("0x%08lx", addr);
 441         }
 442         printf(" }\n");
 443         printf(END_COMMENT);
 444 }
 445
 446 static const char *acpi_pm_profiles[] = {
 447         "Unspecified", "Desktop", "Mobile", "Workstation",
 448         "Enterprise Server", "SOHO Server", "Appliance PC"
 449 };
 450
 451 static void
 452 acpi_print_fadt(struct ACPIsdt *sdp)
 453 {
 454         struct FADTbody *fadt;
 455         const char *pm;
 456         char        sep;
 457
 458         fadt = (struct FADTbody *)sdp->body;
 459         printf(BEGIN_COMMENT);
 460         acpi_print_sdt(sdp);
 461         printf(" \tFACS=0x%x, DSDT=0x%x\n", fadt->facs_ptr,
 462                fadt->dsdt_ptr);
 463         printf("\tINT_MODEL=%s\n", fadt->int_model ? "APIC" : "PIC");
 464         if (fadt->pm_profile >= sizeof(acpi_pm_profiles) / sizeof(char *))
 465                 pm = "Reserved";
 466         else
 467                 pm = acpi_pm_profiles[fadt->pm_profile];
 468         printf("\tPreferred_PM_Profile=%s (%d)\n", pm, fadt->pm_profile);
 469         printf("\tSCI_INT=%d\n", fadt->sci_int);
 470         printf("\tSMI_CMD=0x%x, ", fadt->smi_cmd);
 471         printf("ACPI_ENABLE=0x%x, ", fadt->acpi_enable);
 472         printf("ACPI_DISABLE=0x%x, ", fadt->acpi_disable);
 473         printf("S4BIOS_REQ=0x%x\n", fadt->s4biosreq);
 474         printf("\tPSTATE_CNT=0x%x\n", fadt->pstate_cnt);
 475         printf("\tPM1a_EVT_BLK=0x%x-0x%x\n",
 476                fadt->pm1a_evt_blk,
 477                fadt->pm1a_evt_blk + fadt->pm1_evt_len - 1);
 478         if (fadt->pm1b_evt_blk != 0)
 479                 printf("\tPM1b_EVT_BLK=0x%x-0x%x\n",
 480                        fadt->pm1b_evt_blk,
 481                        fadt->pm1b_evt_blk + fadt->pm1_evt_len - 1);
 482         printf("\tPM1a_CNT_BLK=0x%x-0x%x\n",
 483                fadt->pm1a_cnt_blk,
 484                fadt->pm1a_cnt_blk + fadt->pm1_cnt_len - 1);
 485         if (fadt->pm1b_cnt_blk != 0)
 486                 printf("\tPM1b_CNT_BLK=0x%x-0x%x\n",
 487                        fadt->pm1b_cnt_blk,
 488                        fadt->pm1b_cnt_blk + fadt->pm1_cnt_len - 1);
 489         if (fadt->pm2_cnt_blk != 0)
 490                 printf("\tPM2_CNT_BLK=0x%x-0x%x\n",
 491                        fadt->pm2_cnt_blk,
 492                        fadt->pm2_cnt_blk + fadt->pm2_cnt_len - 1);
 493         printf("\tPM_TMR_BLK=0x%x-0x%x\n",
 494                fadt->pm_tmr_blk,
 495                fadt->pm_tmr_blk + fadt->pm_tmr_len - 1);
 496         if (fadt->gpe0_blk != 0)
 497                 printf("\tGPE0_BLK=0x%x-0x%x\n",
 498                        fadt->gpe0_blk,
 499                        fadt->gpe0_blk + fadt->gpe0_len - 1);
 500         if (fadt->gpe1_blk != 0)
 501                 printf("\tGPE1_BLK=0x%x-0x%x, GPE1_BASE=%d\n",
 502                        fadt->gpe1_blk,
 503                        fadt->gpe1_blk + fadt->gpe1_len - 1,
 504                        fadt->gpe1_base);
 505         if (fadt->cst_cnt != 0)
 506                 printf("\tCST_CNT=0x%x\n", fadt->cst_cnt);
 507         printf("\tP_LVL2_LAT=%d us, P_LVL3_LAT=%d us\n",
 508                fadt->p_lvl2_lat, fadt->p_lvl3_lat);
 509         printf("\tFLUSH_SIZE=%d, FLUSH_STRIDE=%d\n",
 510                fadt->flush_size, fadt->flush_stride);
 511         printf("\tDUTY_OFFSET=%d, DUTY_WIDTH=%d\n",
 512                fadt->duty_off, fadt->duty_width);
 513         printf("\tDAY_ALRM=%d, MON_ALRM=%d, CENTURY=%d\n",
 514                fadt->day_alrm, fadt->mon_alrm, fadt->century);
 515
 516 #define PRINTFLAG(var, flag) do {                       \
 517         if ((var) & FADT_FLAG_## flag) {                \
 518                 printf("%c%s", sep, #flag); sep = ',';  \
 519         }                                               \
 520 } while (0)
 521
 522         printf("\tIAPC_BOOT_ARCH=");
 523         sep = '{';
 524         PRINTFLAG(fadt->iapc_boot_arch, LEGACY_DEV);
 525         PRINTFLAG(fadt->iapc_boot_arch, 8042);
 526         if (fadt->iapc_boot_arch != 0)
 527                 printf("}");
 528         printf("\n");
 529
 530         printf("\tFlags=");
 531         sep = '{';
 532         PRINTFLAG(fadt->flags, WBINVD);
 533         PRINTFLAG(fadt->flags, WBINVD_FLUSH);
 534         PRINTFLAG(fadt->flags, PROC_C1);
 535         PRINTFLAG(fadt->flags, P_LVL2_UP);
 536         PRINTFLAG(fadt->flags, PWR_BUTTON);
 537         PRINTFLAG(fadt->flags, SLP_BUTTON);
 538         PRINTFLAG(fadt->flags, FIX_RTC);
 539         PRINTFLAG(fadt->flags, RTC_S4);
 540         PRINTFLAG(fadt->flags, TMR_VAL_EXT);
 541         PRINTFLAG(fadt->flags, DCK_CAP);
 542         PRINTFLAG(fadt->flags, RESET_REG);
 543         PRINTFLAG(fadt->flags, SEALED_CASE);
 544         PRINTFLAG(fadt->flags, HEADLESS);
 545         PRINTFLAG(fadt->flags, CPU_SW_SLP);
 546         if (fadt->flags != 0)
 547                 printf("}\n");
 548
 549 #undef PRINTFLAG
 550
 551         if (fadt->flags & FADT_FLAG_RESET_REG) {
 552                 printf("\tRESET_REG=");
 553                 acpi_print_gas(&fadt->reset_reg);
 554                 printf(", RESET_VALUE=%#x\n", fadt->reset_value);
 555         }
 556         if (acpi_get_fadt_revision(fadt) > 1) {
 557                 printf("\tX_FACS=0x%08lx, ", (u_long)fadt->x_facs_ptr);
 558                 printf("X_DSDT=0x%08lx\n", (u_long)fadt->x_dsdt_ptr);
 559                 printf("\tX_PM1a_EVT_BLK=");
 560                 acpi_print_gas(&fadt->x_pm1a_evt_blk);
 561                 if (fadt->x_pm1b_evt_blk.address != 0) {
 562                         printf("\n\tX_PM1b_EVT_BLK=");
 563                         acpi_print_gas(&fadt->x_pm1b_evt_blk);
 564                 }
 565                 printf("\n\tX_PM1a_CNT_BLK=");
 566                 acpi_print_gas(&fadt->x_pm1a_cnt_blk);
 567                 if (fadt->x_pm1b_cnt_blk.address != 0) {
 568                         printf("\n\tX_PM1b_CNT_BLK=");
 569                         acpi_print_gas(&fadt->x_pm1b_cnt_blk);
 570                 }
 571                 if (fadt->x_pm1b_cnt_blk.address != 0) {
 572                         printf("\n\tX_PM2_CNT_BLK=");
 573                         acpi_print_gas(&fadt->x_pm2_cnt_blk);
 574                 }
 575                 printf("\n\tX_PM_TMR_BLK=");
 576                 acpi_print_gas(&fadt->x_pm_tmr_blk);
 577                 if (fadt->x_gpe0_blk.address != 0) {
 578                         printf("\n\tX_GPE0_BLK=");
 579                         acpi_print_gas(&fadt->x_gpe0_blk);
 580                 }
 581                 if (fadt->x_gpe1_blk.address != 0) {
 582                         printf("\n\tX_GPE1_BLK=");
 583                         acpi_print_gas(&fadt->x_gpe1_blk);
 584                 }
 585                 printf("\n");
 586         }
 587
 588         printf(END_COMMENT);
 589 }
 590
 591 static void
 592 acpi_print_facs(struct FACSbody *facs)
 593 {
 594         printf(BEGIN_COMMENT);
 595         printf("  FACS:\tLength=%u, ", facs->len);
 596         printf("HwSig=0x%08x, ", facs->hw_sig);
 597         printf("Firm_Wake_Vec=0x%08x\n", facs->firm_wake_vec);
 598
 599         printf("\tGlobal_Lock=");
 600         if (facs->global_lock != 0) {
 601                 if (facs->global_lock & FACS_FLAG_LOCK_PENDING)
 602                         printf("PENDING,");
 603                 if (facs->global_lock & FACS_FLAG_LOCK_OWNED)
 604                         printf("OWNED");
 605         }
 606         printf("\n");
 607
 608         printf("\tFlags=");
 609         if (facs->flags & FACS_FLAG_S4BIOS_F)
 610                 printf("S4BIOS");
 611         printf("\n");
 612
 613         if (facs->x_firm_wake_vec != 0) {
 614                 printf("\tX_Firm_Wake_Vec=%08lx\n",
 615                        (u_long)facs->x_firm_wake_vec);
 616         }
 617         printf("\tVersion=%u\n", facs->version);
 618
 619         printf(END_COMMENT);
 620 }
 621
 622 static void
 623 acpi_print_dsdt(struct ACPIsdt *dsdp)
 624 {
 625         printf(BEGIN_COMMENT);
 626         acpi_print_sdt(dsdp);
 627         printf(END_COMMENT);
 628 }
 629
 630 int
 631 acpi_checksum(void *p, size_t length)
 632 {
 633         u_int8_t        *bp;
 634         u_int8_t        sum;
 635
 636         bp = p;
 637         sum = 0;
 638         while (length--)
 639                 sum += *bp++;
 640
 641         return (sum);
 642 }
 643
 644 static struct ACPIsdt *
 645 acpi_map_sdt(vm_offset_t pa)
 646 {
 647         struct  ACPIsdt *sp;
 648
 649         sp = acpi_map_physical(pa, sizeof(struct ACPIsdt));
 650         sp = acpi_map_physical(pa, sp->len);
 651         return (sp);
 652 }
 653
 654 static void
 655 acpi_print_rsd_ptr(struct ACPIrsdp *rp)
 656 {
 657         printf(BEGIN_COMMENT);
 658         printf("  RSD PTR: OEM=");
 659         acpi_print_string(rp->oem, 6);
 660         printf(", ACPI_Rev=%s (%d)\n", rp->revision < 2 ? "1.0x" : "2.0x",
 661                rp->revision);
 662         if (rp->revision < 2) {
 663                 printf("\tRSDT=0x%08x, cksum=%u\n", rp->rsdt_addr, rp->sum);
 664         } else {
 665                 printf("\tXSDT=0x%08lx, length=%u, cksum=%u\n",
 666                     (u_long)rp->xsdt_addr, rp->length, rp->xsum);
 667         }
 668         printf(END_COMMENT);
 669 }
 670
 671 static void
 672 acpi_handle_rsdt(struct ACPIsdt *rsdp)
 673 {
 674         struct ACPIsdt *sdp;
 675         vm_offset_t addr;
 676         int entries, i;
 677
 678         acpi_print_rsdt(rsdp);
 679         entries = (rsdp->len - SIZEOF_SDT_HDR) / addr_size;
 680         for (i = 0; i < entries; i++) {
 681                 switch (addr_size) {
 682                 case 4:
 683                         addr = le32dec((char*)rsdp->body + i * addr_size);
 684                         break;
 685                 case 8:
 686                         addr = le64dec((char*)rsdp->body + i * addr_size);
 687                         break;
 688                 default:
 689                         assert((addr = 0));
 690                 }
 691
 692                 sdp = (struct ACPIsdt *)acpi_map_sdt(addr);
 693                 if (acpi_checksum(sdp, sdp->len))
 694                         errx(1, "RSDT entry %d is corrupt", i);
 695                 if (!memcmp(sdp->signature, "FACP", 4))
 696                         acpi_handle_fadt(sdp);
 697                 else if (!memcmp(sdp->signature, "APIC", 4))
 698                         acpi_handle_apic(sdp);
 699                 else if (!memcmp(sdp->signature, "HPET", 4))
 700                         acpi_handle_hpet(sdp);
 701                 else if (!memcmp(sdp->signature, "ECDT", 4))
 702                         acpi_handle_ecdt(sdp);
 703                 else {
 704                         printf(BEGIN_COMMENT);
 705                         acpi_print_sdt(sdp);
 706                         printf(END_COMMENT);
 707                 }
 708         }
 709 }
 710
 711 struct ACPIsdt *
 712 sdt_load_devmem(void)
 713 {
 714         struct  ACPIrsdp *rp;
 715         struct  ACPIsdt *rsdp;
 716
 717         rp = acpi_find_rsd_ptr();
 718         if (!rp)
 719                 errx(1, "Can't find ACPI information");
 720
 721         if (tflag)
 722                 acpi_print_rsd_ptr(rp);
 723         if (rp->revision < 2) {
 724                 rsdp = (struct ACPIsdt *)acpi_map_sdt(rp->rsdt_addr);
 725                 if (memcmp(rsdp->signature, "RSDT", 4) != 0 ||
 726                     acpi_checksum(rsdp, rsdp->len) != 0)
 727                         errx(1, "RSDT is corrupted");
 728                 addr_size = sizeof(uint32_t);
 729         } else {
 730                 rsdp = (struct ACPIsdt *)acpi_map_sdt(rp->xsdt_addr);
 731                 if (memcmp(rsdp->signature, "XSDT", 4) != 0 ||
 732                     acpi_checksum(rsdp, rsdp->len) != 0)
 733                         errx(1, "XSDT is corrupted");
 734                 addr_size = sizeof(uint64_t);
 735         }
 736         return (rsdp);
 737 }
 738
 739 void
 740 dsdt_save_file(char *outfile, struct ACPIsdt *dsdp)
 741 {
 742         int     fd;
 743         mode_t  mode;
 744
 745         assert(outfile != NULL);
 746         mode = S_IRUSR | S_IWUSR | S_IRGRP | S_IROTH;
 747         fd = open(outfile, O_WRONLY | O_CREAT | O_TRUNC, mode);
 748         if (fd == -1) {
 749                 perror("dsdt_save_file");
 750                 return;
 751         }
 752         write(fd, dsdp, SIZEOF_SDT_HDR);
 753         write(fd, dsdp->body, dsdp->len - SIZEOF_SDT_HDR);
 754         close(fd);
 755 }
 756
 757 void
 758 aml_disassemble(struct ACPIsdt *dsdp)
 759 {
 760         char tmpstr[32], buf[256];
 761         FILE *fp;
 762         int fd, len;
 763
 764         strcpy(tmpstr, "/tmp/acpidump.XXXXXX");
 765         fd = mkstemp(tmpstr);
 766         if (fd < 0) {
 767                 perror("iasl tmp file");
 768                 return;
 769         }
 770
 771         /* Dump DSDT to the temp file */
 772         write(fd, dsdp, SIZEOF_SDT_HDR);
 773         write(fd, dsdp->body, dsdp->len - SIZEOF_SDT_HDR);
 774         close(fd);
 775
 776         /* Run iasl -d on the temp file */
 777         if (fork() == 0) {
 778                 close(STDOUT_FILENO);
 779                 if (vflag == 0)
 780                         close(STDERR_FILENO);
 781                 execl("/usr/sbin/iasl", "iasl", "-d", tmpstr, 0);
 782                 err(1, "exec");
 783         }
 784
 785         wait(NULL);
 786         unlink(tmpstr);
 787
 788         /* Dump iasl's output to stdout */
 789         fp = fopen("acpidump.dsl", "r");
 790         unlink("acpidump.dsl");
 791         if (fp == NULL) {
 792                 perror("iasl tmp file (read)");
 793                 return;
 794         }
 795         while ((len = fread(buf, 1, sizeof(buf), fp)) > 0)
 796                 fwrite(buf, 1, len, stdout);
 797         fclose(fp);
 798 }
 799
 800 void
 801 sdt_print_all(struct ACPIsdt *rsdp)
 802 {
 803         acpi_handle_rsdt(rsdp);
 804 }
 805
 806 /* Fetch a table matching the given signature via the RSDT */
 807 struct ACPIsdt *
 808 sdt_from_rsdt(struct ACPIsdt *rsdt, const char *sig)
 809 {
 810         struct ACPIsdt *sdt;
 811         vm_offset_t addr;
 812         int entries, i;
 813
 814         entries = (rsdt->len - SIZEOF_SDT_HDR) / addr_size;
 815         for (i = 0; i < entries; i++) {
 816                 switch (addr_size) {
 817                 case 4:
 818                         addr = le32dec((char*)rsdt->body + i * addr_size);
 819                         break;
 820                 case 8:
 821                         addr = le64dec((char*)rsdt->body + i * addr_size);
 822                         break;
 823                 default:
 824                         assert((addr = 0));
 825                 }
 826                 sdt = (struct ACPIsdt *)acpi_map_sdt(addr);
 827                 if (memcmp(sdt->signature, sig, strlen(sig)))
 828                         continue;
 829                 if (acpi_checksum(sdt, sdt->len))
 830                         errx(1, "RSDT entry %d is corrupt", i);
 831                 return (sdt);
 832         }
 833
 834         return (NULL);
 835 }
 836
 837 struct ACPIsdt *
 838 dsdt_from_fadt(struct FADTbody *fadt)
 839 {
 840         struct  ACPIsdt *sdt;
 841
 842         /* Use the DSDT address if it is version 1, otherwise use X_DSDT. */
 843         if (acpi_get_fadt_revision(fadt) == 1)
 844                 sdt = (struct ACPIsdt *)acpi_map_sdt(fadt->dsdt_ptr);
 845         else
 846                 sdt = (struct ACPIsdt *)acpi_map_sdt(fadt->x_dsdt_ptr);
 847         if (acpi_checksum(sdt, sdt->len))
 848                 errx(1, "DSDT is corrupt\n");
 849         return (sdt);
 850 }