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44#include <linux/export.h>
45#include <acpi/acpi.h>
46#include "accommon.h"
47#include "acdebug.h"
48
49#define _COMPONENT ACPI_UTILITIES
50ACPI_MODULE_NAME("utxface")
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63acpi_status acpi_terminate(void)
64{
65 acpi_status status;
66
67 ACPI_FUNCTION_TRACE(acpi_terminate);
68
69
70
71 if (acpi_gbl_shutdown) {
72 ACPI_ERROR((AE_INFO, "ACPI Subsystem is already terminated"));
73 return_ACPI_STATUS(AE_OK);
74 }
75
76
77
78 acpi_gbl_shutdown = TRUE;
79 acpi_gbl_startup_flags = 0;
80 ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Shutting down ACPI Subsystem\n"));
81
82
83
84 ACPI_DEBUGGER_EXEC(acpi_gbl_db_terminate_threads = TRUE);
85
86
87
88 acpi_ut_subsystem_shutdown();
89
90
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92 acpi_ut_mutex_terminate();
93
94#ifdef ACPI_DEBUGGER
95
96
97
98 acpi_db_terminate();
99#endif
100
101
102
103 status = acpi_os_terminate();
104 return_ACPI_STATUS(status);
105}
106
107ACPI_EXPORT_SYMBOL(acpi_terminate)
108
109#ifndef ACPI_ASL_COMPILER
110#ifdef ACPI_FUTURE_USAGE
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123
124acpi_status acpi_subsystem_status(void)
125{
126
127 if (acpi_gbl_startup_flags & ACPI_INITIALIZED_OK) {
128 return (AE_OK);
129 } else {
130 return (AE_ERROR);
131 }
132}
133
134ACPI_EXPORT_SYMBOL(acpi_subsystem_status)
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152
153acpi_status acpi_get_system_info(struct acpi_buffer * out_buffer)
154{
155 struct acpi_system_info *info_ptr;
156 acpi_status status;
157
158 ACPI_FUNCTION_TRACE(acpi_get_system_info);
159
160
161
162 status = acpi_ut_validate_buffer(out_buffer);
163 if (ACPI_FAILURE(status)) {
164 return_ACPI_STATUS(status);
165 }
166
167
168
169 status =
170 acpi_ut_initialize_buffer(out_buffer,
171 sizeof(struct acpi_system_info));
172 if (ACPI_FAILURE(status)) {
173 return_ACPI_STATUS(status);
174 }
175
176
177
178
179 info_ptr = (struct acpi_system_info *)out_buffer->pointer;
180
181 info_ptr->acpi_ca_version = ACPI_CA_VERSION;
182
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184
185 info_ptr->flags = ACPI_SYS_MODE_ACPI;
186
187
188
189 if (acpi_gbl_FADT.flags & ACPI_FADT_32BIT_TIMER) {
190 info_ptr->timer_resolution = 24;
191 } else {
192 info_ptr->timer_resolution = 32;
193 }
194
195
196
197 info_ptr->reserved1 = 0;
198 info_ptr->reserved2 = 0;
199
200
201
202 info_ptr->debug_layer = acpi_dbg_layer;
203 info_ptr->debug_level = acpi_dbg_level;
204
205 return_ACPI_STATUS(AE_OK);
206}
207
208ACPI_EXPORT_SYMBOL(acpi_get_system_info)
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223
224acpi_status
225acpi_install_initialization_handler(acpi_init_handler handler, u32 function)
226{
227
228 if (!handler) {
229 return (AE_BAD_PARAMETER);
230 }
231
232 if (acpi_gbl_init_handler) {
233 return (AE_ALREADY_EXISTS);
234 }
235
236 acpi_gbl_init_handler = handler;
237 return (AE_OK);
238}
239
240ACPI_EXPORT_SYMBOL(acpi_install_initialization_handler)
241#endif
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254acpi_status acpi_purge_cached_objects(void)
255{
256 ACPI_FUNCTION_TRACE(acpi_purge_cached_objects);
257
258 (void)acpi_os_purge_cache(acpi_gbl_state_cache);
259 (void)acpi_os_purge_cache(acpi_gbl_operand_cache);
260 (void)acpi_os_purge_cache(acpi_gbl_ps_node_cache);
261 (void)acpi_os_purge_cache(acpi_gbl_ps_node_ext_cache);
262
263 return_ACPI_STATUS(AE_OK);
264}
265
266ACPI_EXPORT_SYMBOL(acpi_purge_cached_objects)
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279acpi_status acpi_install_interface(acpi_string interface_name)
280{
281 acpi_status status;
282 struct acpi_interface_info *interface_info;
283
284
285
286 if (!interface_name || (ACPI_STRLEN(interface_name) == 0)) {
287 return (AE_BAD_PARAMETER);
288 }
289
290 status = acpi_os_acquire_mutex(acpi_gbl_osi_mutex, ACPI_WAIT_FOREVER);
291 if (ACPI_FAILURE(status)) {
292 return (status);
293 }
294
295
296
297 interface_info = acpi_ut_get_interface(interface_name);
298 if (interface_info) {
299
300
301
302
303 if (interface_info->flags & ACPI_OSI_INVALID) {
304 interface_info->flags &= ~ACPI_OSI_INVALID;
305 status = AE_OK;
306 } else {
307 status = AE_ALREADY_EXISTS;
308 }
309 } else {
310
311
312 status = acpi_ut_install_interface(interface_name);
313 }
314
315 acpi_os_release_mutex(acpi_gbl_osi_mutex);
316 return (status);
317}
318
319ACPI_EXPORT_SYMBOL(acpi_install_interface)
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332acpi_status acpi_remove_interface(acpi_string interface_name)
333{
334 acpi_status status;
335
336
337
338 if (!interface_name || (ACPI_STRLEN(interface_name) == 0)) {
339 return (AE_BAD_PARAMETER);
340 }
341
342 status = acpi_os_acquire_mutex(acpi_gbl_osi_mutex, ACPI_WAIT_FOREVER);
343 if (ACPI_FAILURE(status)) {
344 return (status);
345 }
346
347 status = acpi_ut_remove_interface(interface_name);
348
349 acpi_os_release_mutex(acpi_gbl_osi_mutex);
350 return (status);
351}
352
353ACPI_EXPORT_SYMBOL(acpi_remove_interface)
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369acpi_status acpi_install_interface_handler(acpi_interface_handler handler)
370{
371 acpi_status status;
372
373 status = acpi_os_acquire_mutex(acpi_gbl_osi_mutex, ACPI_WAIT_FOREVER);
374 if (ACPI_FAILURE(status)) {
375 return (status);
376 }
377
378 if (handler && acpi_gbl_interface_handler) {
379 status = AE_ALREADY_EXISTS;
380 } else {
381 acpi_gbl_interface_handler = handler;
382 }
383
384 acpi_os_release_mutex(acpi_gbl_osi_mutex);
385 return (status);
386}
387
388ACPI_EXPORT_SYMBOL(acpi_install_interface_handler)
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405u32
406acpi_check_address_range(acpi_adr_space_type space_id,
407 acpi_physical_address address,
408 acpi_size length, u8 warn)
409{
410 u32 overlaps;
411 acpi_status status;
412
413 status = acpi_ut_acquire_mutex(ACPI_MTX_NAMESPACE);
414 if (ACPI_FAILURE(status)) {
415 return (0);
416 }
417
418 overlaps = acpi_ut_check_address_range(space_id, address,
419 (u32)length, warn);
420
421 (void)acpi_ut_release_mutex(ACPI_MTX_NAMESPACE);
422 return (overlaps);
423}
424
425ACPI_EXPORT_SYMBOL(acpi_check_address_range)
426#endif
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442acpi_status
443acpi_decode_pld_buffer(u8 *in_buffer,
444 acpi_size length, struct acpi_pld_info ** return_buffer)
445{
446 struct acpi_pld_info *pld_info;
447 u32 *buffer = ACPI_CAST_PTR(u32, in_buffer);
448 u32 dword;
449
450
451
452 if (!in_buffer || !return_buffer || (length < 16)) {
453 return (AE_BAD_PARAMETER);
454 }
455
456 pld_info = ACPI_ALLOCATE_ZEROED(sizeof(struct acpi_pld_info));
457 if (!pld_info) {
458 return (AE_NO_MEMORY);
459 }
460
461
462
463 ACPI_MOVE_32_TO_32(&dword, &buffer[0]);
464 pld_info->revision = ACPI_PLD_GET_REVISION(&dword);
465 pld_info->ignore_color = ACPI_PLD_GET_IGNORE_COLOR(&dword);
466 pld_info->color = ACPI_PLD_GET_COLOR(&dword);
467
468
469
470 ACPI_MOVE_32_TO_32(&dword, &buffer[1]);
471 pld_info->width = ACPI_PLD_GET_WIDTH(&dword);
472 pld_info->height = ACPI_PLD_GET_HEIGHT(&dword);
473
474
475
476 ACPI_MOVE_32_TO_32(&dword, &buffer[2]);
477 pld_info->user_visible = ACPI_PLD_GET_USER_VISIBLE(&dword);
478 pld_info->dock = ACPI_PLD_GET_DOCK(&dword);
479 pld_info->lid = ACPI_PLD_GET_LID(&dword);
480 pld_info->panel = ACPI_PLD_GET_PANEL(&dword);
481 pld_info->vertical_position = ACPI_PLD_GET_VERTICAL(&dword);
482 pld_info->horizontal_position = ACPI_PLD_GET_HORIZONTAL(&dword);
483 pld_info->shape = ACPI_PLD_GET_SHAPE(&dword);
484 pld_info->group_orientation = ACPI_PLD_GET_ORIENTATION(&dword);
485 pld_info->group_token = ACPI_PLD_GET_TOKEN(&dword);
486 pld_info->group_position = ACPI_PLD_GET_POSITION(&dword);
487 pld_info->bay = ACPI_PLD_GET_BAY(&dword);
488
489
490
491 ACPI_MOVE_32_TO_32(&dword, &buffer[3]);
492 pld_info->ejectable = ACPI_PLD_GET_EJECTABLE(&dword);
493 pld_info->ospm_eject_required = ACPI_PLD_GET_OSPM_EJECT(&dword);
494 pld_info->cabinet_number = ACPI_PLD_GET_CABINET(&dword);
495 pld_info->card_cage_number = ACPI_PLD_GET_CARD_CAGE(&dword);
496 pld_info->reference = ACPI_PLD_GET_REFERENCE(&dword);
497 pld_info->rotation = ACPI_PLD_GET_ROTATION(&dword);
498 pld_info->order = ACPI_PLD_GET_ORDER(&dword);
499
500 if (length >= ACPI_PLD_BUFFER_SIZE) {
501
502
503
504 ACPI_MOVE_32_TO_32(&dword, &buffer[4]);
505 pld_info->vertical_offset = ACPI_PLD_GET_VERT_OFFSET(&dword);
506 pld_info->horizontal_offset = ACPI_PLD_GET_HORIZ_OFFSET(&dword);
507 }
508
509 *return_buffer = pld_info;
510 return (AE_OK);
511}
512
513ACPI_EXPORT_SYMBOL(acpi_decode_pld_buffer)
514