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1 | /* |
2 | * acpi.h - ACPI Interface | |
3 | * | |
4 | * Copyright (C) 2001 Paul Diefenbaugh <paul.s.diefenbaugh@intel.com> | |
5 | * | |
6 | * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ | |
7 | * | |
8 | * This program is free software; you can redistribute it and/or modify | |
9 | * it under the terms of the GNU General Public License as published by | |
10 | * the Free Software Foundation; either version 2 of the License, or | |
11 | * (at your option) any later version. | |
12 | * | |
13 | * This program is distributed in the hope that it will be useful, | |
14 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
15 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
16 | * GNU General Public License for more details. | |
17 | * | |
18 | * You should have received a copy of the GNU General Public License | |
19 | * along with this program; if not, write to the Free Software | |
20 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA | |
21 | * | |
22 | * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ | |
23 | */ | |
24 | ||
25 | #ifndef _LINUX_ACPI_H | |
26 | #define _LINUX_ACPI_H | |
27 | ||
28 | #ifndef _LINUX | |
29 | #define _LINUX | |
30 | #endif | |
31 | ||
32 | #include <linux/list.h> | |
33 | ||
34 | #include <acpi/acpi.h> | |
35 | #include <acpi/acpi_bus.h> | |
36 | #include <acpi/acpi_drivers.h> | |
37 | #include <asm/acpi.h> | |
38 | ||
39 | ||
40 | #ifdef CONFIG_ACPI_BOOT | |
41 | ||
42 | enum acpi_irq_model_id { | |
43 | ACPI_IRQ_MODEL_PIC = 0, | |
44 | ACPI_IRQ_MODEL_IOAPIC, | |
45 | ACPI_IRQ_MODEL_IOSAPIC, | |
46 | ACPI_IRQ_MODEL_COUNT | |
47 | }; | |
48 | ||
49 | extern enum acpi_irq_model_id acpi_irq_model; | |
50 | ||
51 | ||
52 | /* Root System Description Pointer (RSDP) */ | |
53 | ||
54 | struct acpi_table_rsdp { | |
55 | char signature[8]; | |
56 | u8 checksum; | |
57 | char oem_id[6]; | |
58 | u8 revision; | |
59 | u32 rsdt_address; | |
60 | } __attribute__ ((packed)); | |
61 | ||
62 | struct acpi20_table_rsdp { | |
63 | char signature[8]; | |
64 | u8 checksum; | |
65 | char oem_id[6]; | |
66 | u8 revision; | |
67 | u32 rsdt_address; | |
68 | u32 length; | |
69 | u64 xsdt_address; | |
70 | u8 ext_checksum; | |
71 | u8 reserved[3]; | |
72 | } __attribute__ ((packed)); | |
73 | ||
74 | typedef struct { | |
75 | u8 type; | |
76 | u8 length; | |
77 | } __attribute__ ((packed)) acpi_table_entry_header; | |
78 | ||
79 | /* Root System Description Table (RSDT) */ | |
80 | ||
81 | struct acpi_table_rsdt { | |
82 | struct acpi_table_header header; | |
83 | u32 entry[8]; | |
84 | } __attribute__ ((packed)); | |
85 | ||
86 | /* Extended System Description Table (XSDT) */ | |
87 | ||
88 | struct acpi_table_xsdt { | |
89 | struct acpi_table_header header; | |
90 | u64 entry[1]; | |
91 | } __attribute__ ((packed)); | |
92 | ||
93 | /* Fixed ACPI Description Table (FADT) */ | |
94 | ||
95 | struct acpi_table_fadt { | |
96 | struct acpi_table_header header; | |
97 | u32 facs_addr; | |
98 | u32 dsdt_addr; | |
99 | /* ... */ | |
100 | } __attribute__ ((packed)); | |
101 | ||
102 | /* Multiple APIC Description Table (MADT) */ | |
103 | ||
104 | struct acpi_table_madt { | |
105 | struct acpi_table_header header; | |
106 | u32 lapic_address; | |
107 | struct { | |
108 | u32 pcat_compat:1; | |
109 | u32 reserved:31; | |
110 | } flags; | |
111 | } __attribute__ ((packed)); | |
112 | ||
113 | enum acpi_madt_entry_id { | |
114 | ACPI_MADT_LAPIC = 0, | |
115 | ACPI_MADT_IOAPIC, | |
116 | ACPI_MADT_INT_SRC_OVR, | |
117 | ACPI_MADT_NMI_SRC, | |
118 | ACPI_MADT_LAPIC_NMI, | |
119 | ACPI_MADT_LAPIC_ADDR_OVR, | |
120 | ACPI_MADT_IOSAPIC, | |
121 | ACPI_MADT_LSAPIC, | |
122 | ACPI_MADT_PLAT_INT_SRC, | |
123 | ACPI_MADT_ENTRY_COUNT | |
124 | }; | |
125 | ||
126 | typedef struct { | |
127 | u16 polarity:2; | |
128 | u16 trigger:2; | |
129 | u16 reserved:12; | |
130 | } __attribute__ ((packed)) acpi_interrupt_flags; | |
131 | ||
132 | struct acpi_table_lapic { | |
133 | acpi_table_entry_header header; | |
134 | u8 acpi_id; | |
135 | u8 id; | |
136 | struct { | |
137 | u32 enabled:1; | |
138 | u32 reserved:31; | |
139 | } flags; | |
140 | } __attribute__ ((packed)); | |
141 | ||
142 | struct acpi_table_ioapic { | |
143 | acpi_table_entry_header header; | |
144 | u8 id; | |
145 | u8 reserved; | |
146 | u32 address; | |
147 | u32 global_irq_base; | |
148 | } __attribute__ ((packed)); | |
149 | ||
150 | struct acpi_table_int_src_ovr { | |
151 | acpi_table_entry_header header; | |
152 | u8 bus; | |
153 | u8 bus_irq; | |
154 | u32 global_irq; | |
155 | acpi_interrupt_flags flags; | |
156 | } __attribute__ ((packed)); | |
157 | ||
158 | struct acpi_table_nmi_src { | |
159 | acpi_table_entry_header header; | |
160 | acpi_interrupt_flags flags; | |
161 | u32 global_irq; | |
162 | } __attribute__ ((packed)); | |
163 | ||
164 | struct acpi_table_lapic_nmi { | |
165 | acpi_table_entry_header header; | |
166 | u8 acpi_id; | |
167 | acpi_interrupt_flags flags; | |
168 | u8 lint; | |
169 | } __attribute__ ((packed)); | |
170 | ||
171 | struct acpi_table_lapic_addr_ovr { | |
172 | acpi_table_entry_header header; | |
173 | u8 reserved[2]; | |
174 | u64 address; | |
175 | } __attribute__ ((packed)); | |
176 | ||
177 | struct acpi_table_iosapic { | |
178 | acpi_table_entry_header header; | |
179 | u8 id; | |
180 | u8 reserved; | |
181 | u32 global_irq_base; | |
182 | u64 address; | |
183 | } __attribute__ ((packed)); | |
184 | ||
185 | struct acpi_table_lsapic { | |
186 | acpi_table_entry_header header; | |
187 | u8 acpi_id; | |
188 | u8 id; | |
189 | u8 eid; | |
190 | u8 reserved[3]; | |
191 | struct { | |
192 | u32 enabled:1; | |
193 | u32 reserved:31; | |
194 | } flags; | |
195 | } __attribute__ ((packed)); | |
196 | ||
197 | struct acpi_table_plat_int_src { | |
198 | acpi_table_entry_header header; | |
199 | acpi_interrupt_flags flags; | |
200 | u8 type; /* See acpi_interrupt_type */ | |
201 | u8 id; | |
202 | u8 eid; | |
203 | u8 iosapic_vector; | |
204 | u32 global_irq; | |
205 | u32 reserved; | |
206 | } __attribute__ ((packed)); | |
207 | ||
208 | enum acpi_interrupt_id { | |
209 | ACPI_INTERRUPT_PMI = 1, | |
210 | ACPI_INTERRUPT_INIT, | |
211 | ACPI_INTERRUPT_CPEI, | |
212 | ACPI_INTERRUPT_COUNT | |
213 | }; | |
214 | ||
215 | #define ACPI_SPACE_MEM 0 | |
216 | ||
217 | struct acpi_gen_regaddr { | |
218 | u8 space_id; | |
219 | u8 bit_width; | |
220 | u8 bit_offset; | |
221 | u8 resv; | |
222 | u32 addrl; | |
223 | u32 addrh; | |
224 | } __attribute__ ((packed)); | |
225 | ||
226 | struct acpi_table_hpet { | |
227 | struct acpi_table_header header; | |
228 | u32 id; | |
229 | struct acpi_gen_regaddr addr; | |
230 | u8 number; | |
231 | u16 min_tick; | |
232 | u8 page_protect; | |
233 | } __attribute__ ((packed)); | |
234 | ||
235 | /* | |
236 | * Simple Boot Flags | |
237 | * http://www.microsoft.com/whdc/hwdev/resources/specs/simp_bios.mspx | |
238 | */ | |
239 | struct acpi_table_sbf | |
240 | { | |
241 | u8 sbf_signature[4]; | |
242 | u32 sbf_len; | |
243 | u8 sbf_revision; | |
244 | u8 sbf_csum; | |
245 | u8 sbf_oemid[6]; | |
246 | u8 sbf_oemtable[8]; | |
247 | u8 sbf_revdata[4]; | |
248 | u8 sbf_creator[4]; | |
249 | u8 sbf_crearev[4]; | |
250 | u8 sbf_cmos; | |
251 | u8 sbf_spare[3]; | |
252 | } __attribute__ ((packed)); | |
253 | ||
254 | /* | |
255 | * System Resource Affinity Table (SRAT) | |
256 | * http://www.microsoft.com/whdc/hwdev/platform/proc/SRAT.mspx | |
257 | */ | |
258 | ||
259 | struct acpi_table_srat { | |
260 | struct acpi_table_header header; | |
261 | u32 table_revision; | |
262 | u64 reserved; | |
263 | } __attribute__ ((packed)); | |
264 | ||
265 | enum acpi_srat_entry_id { | |
266 | ACPI_SRAT_PROCESSOR_AFFINITY = 0, | |
267 | ACPI_SRAT_MEMORY_AFFINITY, | |
268 | ACPI_SRAT_ENTRY_COUNT | |
269 | }; | |
270 | ||
271 | struct acpi_table_processor_affinity { | |
272 | acpi_table_entry_header header; | |
273 | u8 proximity_domain; | |
274 | u8 apic_id; | |
275 | struct { | |
276 | u32 enabled:1; | |
277 | u32 reserved:31; | |
278 | } flags; | |
279 | u8 lsapic_eid; | |
280 | u8 reserved[7]; | |
281 | } __attribute__ ((packed)); | |
282 | ||
283 | struct acpi_table_memory_affinity { | |
284 | acpi_table_entry_header header; | |
285 | u8 proximity_domain; | |
286 | u8 reserved1[5]; | |
287 | u32 base_addr_lo; | |
288 | u32 base_addr_hi; | |
289 | u32 length_lo; | |
290 | u32 length_hi; | |
291 | u32 memory_type; /* See acpi_address_range_id */ | |
292 | struct { | |
293 | u32 enabled:1; | |
294 | u32 hot_pluggable:1; | |
295 | u32 reserved:30; | |
296 | } flags; | |
297 | u64 reserved2; | |
298 | } __attribute__ ((packed)); | |
299 | ||
300 | enum acpi_address_range_id { | |
301 | ACPI_ADDRESS_RANGE_MEMORY = 1, | |
302 | ACPI_ADDRESS_RANGE_RESERVED = 2, | |
303 | ACPI_ADDRESS_RANGE_ACPI = 3, | |
304 | ACPI_ADDRESS_RANGE_NVS = 4, | |
305 | ACPI_ADDRESS_RANGE_COUNT | |
306 | }; | |
307 | ||
308 | /* | |
309 | * System Locality Information Table (SLIT) | |
310 | * see http://devresource.hp.com/devresource/docs/techpapers/ia64/slit.pdf | |
311 | */ | |
312 | ||
313 | struct acpi_table_slit { | |
314 | struct acpi_table_header header; | |
315 | u64 localities; | |
316 | u8 entry[1]; /* real size = localities^2 */ | |
317 | } __attribute__ ((packed)); | |
318 | ||
319 | /* Smart Battery Description Table (SBST) */ | |
320 | ||
321 | struct acpi_table_sbst { | |
322 | struct acpi_table_header header; | |
323 | u32 warning; /* Warn user */ | |
324 | u32 low; /* Critical sleep */ | |
325 | u32 critical; /* Critical shutdown */ | |
326 | } __attribute__ ((packed)); | |
327 | ||
328 | /* Embedded Controller Boot Resources Table (ECDT) */ | |
329 | ||
330 | struct acpi_table_ecdt { | |
331 | struct acpi_table_header header; | |
332 | struct acpi_generic_address ec_control; | |
333 | struct acpi_generic_address ec_data; | |
334 | u32 uid; | |
335 | u8 gpe_bit; | |
336 | char ec_id[0]; | |
337 | } __attribute__ ((packed)); | |
338 | ||
339 | /* PCI MMCONFIG */ | |
340 | ||
341 | struct acpi_table_mcfg { | |
342 | struct acpi_table_header header; | |
343 | u8 reserved[8]; | |
344 | u32 base_address; | |
345 | u32 base_reserved; | |
346 | } __attribute__ ((packed)); | |
347 | ||
348 | /* Table Handlers */ | |
349 | ||
350 | enum acpi_table_id { | |
351 | ACPI_TABLE_UNKNOWN = 0, | |
352 | ACPI_APIC, | |
353 | ACPI_BOOT, | |
354 | ACPI_DBGP, | |
355 | ACPI_DSDT, | |
356 | ACPI_ECDT, | |
357 | ACPI_ETDT, | |
358 | ACPI_FADT, | |
359 | ACPI_FACS, | |
360 | ACPI_OEMX, | |
361 | ACPI_PSDT, | |
362 | ACPI_SBST, | |
363 | ACPI_SLIT, | |
364 | ACPI_SPCR, | |
365 | ACPI_SRAT, | |
366 | ACPI_SSDT, | |
367 | ACPI_SPMI, | |
368 | ACPI_HPET, | |
369 | ACPI_MCFG, | |
370 | ACPI_TABLE_COUNT | |
371 | }; | |
372 | ||
373 | typedef int (*acpi_table_handler) (unsigned long phys_addr, unsigned long size); | |
374 | ||
375 | extern acpi_table_handler acpi_table_ops[ACPI_TABLE_COUNT]; | |
376 | ||
377 | typedef int (*acpi_madt_entry_handler) (acpi_table_entry_header *header, const unsigned long end); | |
378 | ||
379 | char * __acpi_map_table (unsigned long phys_addr, unsigned long size); | |
380 | unsigned long acpi_find_rsdp (void); | |
381 | int acpi_boot_init (void); | |
382 | int acpi_boot_table_init (void); | |
383 | int acpi_numa_init (void); | |
384 | ||
385 | int acpi_table_init (void); | |
386 | int acpi_table_parse (enum acpi_table_id id, acpi_table_handler handler); | |
387 | int acpi_get_table_header_early (enum acpi_table_id id, struct acpi_table_header **header); | |
388 | int acpi_table_parse_madt (enum acpi_madt_entry_id id, acpi_madt_entry_handler handler, unsigned int max_entries); | |
389 | int acpi_table_parse_srat (enum acpi_srat_entry_id id, acpi_madt_entry_handler handler, unsigned int max_entries); | |
390 | void acpi_table_print (struct acpi_table_header *header, unsigned long phys_addr); | |
391 | void acpi_table_print_madt_entry (acpi_table_entry_header *madt); | |
392 | void acpi_table_print_srat_entry (acpi_table_entry_header *srat); | |
393 | ||
394 | /* the following four functions are architecture-dependent */ | |
395 | void acpi_numa_slit_init (struct acpi_table_slit *slit); | |
396 | void acpi_numa_processor_affinity_init (struct acpi_table_processor_affinity *pa); | |
397 | void acpi_numa_memory_affinity_init (struct acpi_table_memory_affinity *ma); | |
398 | void acpi_numa_arch_fixup(void); | |
399 | ||
400 | #ifdef CONFIG_ACPI_HOTPLUG_CPU | |
401 | /* Arch dependent functions for cpu hotplug support */ | |
402 | int acpi_map_lsapic(acpi_handle handle, int *pcpu); | |
403 | int acpi_unmap_lsapic(int cpu); | |
404 | #endif /* CONFIG_ACPI_HOTPLUG_CPU */ | |
405 | ||
406 | extern int acpi_mp_config; | |
407 | ||
408 | extern u32 pci_mmcfg_base_addr; | |
409 | ||
410 | extern int sbf_port ; | |
411 | ||
412 | #else /*!CONFIG_ACPI_BOOT*/ | |
413 | ||
414 | #define acpi_mp_config 0 | |
415 | ||
416 | static inline int acpi_boot_init(void) | |
417 | { | |
418 | return 0; | |
419 | } | |
420 | ||
421 | static inline int acpi_boot_table_init(void) | |
422 | { | |
423 | return 0; | |
424 | } | |
425 | ||
426 | #endif /*!CONFIG_ACPI_BOOT*/ | |
427 | ||
428 | unsigned int acpi_register_gsi (u32 gsi, int edge_level, int active_high_low); | |
429 | int acpi_gsi_to_irq (u32 gsi, unsigned int *irq); | |
430 | ||
431 | /* | |
432 | * This function undoes the effect of one call to acpi_register_gsi(). | |
433 | * If this matches the last registration, any IRQ resources for gsi | |
434 | * are freed. | |
435 | */ | |
436 | #ifdef CONFIG_ACPI_DEALLOCATE_IRQ | |
437 | void acpi_unregister_gsi (u32 gsi); | |
438 | #endif | |
439 | ||
440 | #ifdef CONFIG_ACPI_PCI | |
441 | ||
442 | struct acpi_prt_entry { | |
443 | struct list_head node; | |
444 | struct acpi_pci_id id; | |
445 | u8 pin; | |
446 | struct { | |
447 | acpi_handle handle; | |
448 | u32 index; | |
449 | } link; | |
450 | u32 irq; | |
451 | }; | |
452 | ||
453 | struct acpi_prt_list { | |
454 | int count; | |
455 | struct list_head entries; | |
456 | }; | |
457 | ||
458 | struct pci_dev; | |
459 | ||
460 | int acpi_pci_irq_enable (struct pci_dev *dev); | |
461 | void acpi_penalize_isa_irq(int irq); | |
462 | ||
463 | #ifdef CONFIG_ACPI_DEALLOCATE_IRQ | |
464 | void acpi_pci_irq_disable (struct pci_dev *dev); | |
465 | #endif | |
466 | ||
467 | struct acpi_pci_driver { | |
468 | struct acpi_pci_driver *next; | |
469 | int (*add)(acpi_handle handle); | |
470 | void (*remove)(acpi_handle handle); | |
471 | }; | |
472 | ||
473 | int acpi_pci_register_driver(struct acpi_pci_driver *driver); | |
474 | void acpi_pci_unregister_driver(struct acpi_pci_driver *driver); | |
475 | ||
476 | #endif /*CONFIG_ACPI_PCI*/ | |
477 | ||
478 | #ifdef CONFIG_ACPI_EC | |
479 | ||
480 | extern int ec_read(u8 addr, u8 *val); | |
481 | extern int ec_write(u8 addr, u8 val); | |
482 | ||
483 | #endif /*CONFIG_ACPI_EC*/ | |
484 | ||
485 | #ifdef CONFIG_ACPI_INTERPRETER | |
486 | ||
487 | extern int acpi_blacklisted(void); | |
488 | extern void acpi_bios_year(char *s); | |
489 | ||
490 | #else /*!CONFIG_ACPI_INTERPRETER*/ | |
491 | ||
492 | static inline int acpi_blacklisted(void) | |
493 | { | |
494 | return 0; | |
495 | } | |
496 | ||
497 | #endif /*!CONFIG_ACPI_INTERPRETER*/ | |
498 | ||
499 | #define ACPI_CSTATE_LIMIT_DEFINED /* for driver builds */ | |
500 | #ifdef CONFIG_ACPI | |
501 | ||
502 | /* | |
503 | * Set highest legal C-state | |
504 | * 0: C0 okay, but not C1 | |
505 | * 1: C1 okay, but not C2 | |
506 | * 2: C2 okay, but not C3 etc. | |
507 | */ | |
508 | ||
509 | extern unsigned int max_cstate; | |
510 | ||
511 | static inline unsigned int acpi_get_cstate_limit(void) | |
512 | { | |
513 | return max_cstate; | |
514 | } | |
515 | static inline void acpi_set_cstate_limit(unsigned int new_limit) | |
516 | { | |
517 | max_cstate = new_limit; | |
518 | return; | |
519 | } | |
520 | #else | |
521 | static inline unsigned int acpi_get_cstate_limit(void) { return 0; } | |
522 | static inline void acpi_set_cstate_limit(unsigned int new_limit) { return; } | |
523 | #endif | |
524 | ||
525 | #ifdef CONFIG_ACPI_NUMA | |
526 | int acpi_get_pxm(acpi_handle handle); | |
527 | #else | |
528 | static inline int acpi_get_pxm(acpi_handle handle) | |
529 | { | |
530 | return 0; | |
531 | } | |
532 | #endif | |
533 | ||
534 | extern int pnpacpi_disabled; | |
535 | ||
536 | #endif /*_LINUX_ACPI_H*/ |