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4
5#include <linux/init.h>
6#include <linux/kernel.h>
7#include <linux/moduleparam.h>
8#include <acpi/acpi_drivers.h>
9
10#include "internal.h"
11
12#define _COMPONENT ACPI_SYSTEM_COMPONENT
13ACPI_MODULE_NAME("sysfs");
14
15#ifdef CONFIG_ACPI_DEBUG
16
17
18
19
20
21
22
23
24
25
26struct acpi_dlayer {
27 const char *name;
28 unsigned long value;
29};
30struct acpi_dlevel {
31 const char *name;
32 unsigned long value;
33};
34#define ACPI_DEBUG_INIT(v) { .name = #v, .value = v }
35
36static const struct acpi_dlayer acpi_debug_layers[] = {
37 ACPI_DEBUG_INIT(ACPI_UTILITIES),
38 ACPI_DEBUG_INIT(ACPI_HARDWARE),
39 ACPI_DEBUG_INIT(ACPI_EVENTS),
40 ACPI_DEBUG_INIT(ACPI_TABLES),
41 ACPI_DEBUG_INIT(ACPI_NAMESPACE),
42 ACPI_DEBUG_INIT(ACPI_PARSER),
43 ACPI_DEBUG_INIT(ACPI_DISPATCHER),
44 ACPI_DEBUG_INIT(ACPI_EXECUTER),
45 ACPI_DEBUG_INIT(ACPI_RESOURCES),
46 ACPI_DEBUG_INIT(ACPI_CA_DEBUGGER),
47 ACPI_DEBUG_INIT(ACPI_OS_SERVICES),
48 ACPI_DEBUG_INIT(ACPI_CA_DISASSEMBLER),
49 ACPI_DEBUG_INIT(ACPI_COMPILER),
50 ACPI_DEBUG_INIT(ACPI_TOOLS),
51
52 ACPI_DEBUG_INIT(ACPI_BUS_COMPONENT),
53 ACPI_DEBUG_INIT(ACPI_AC_COMPONENT),
54 ACPI_DEBUG_INIT(ACPI_BATTERY_COMPONENT),
55 ACPI_DEBUG_INIT(ACPI_BUTTON_COMPONENT),
56 ACPI_DEBUG_INIT(ACPI_SBS_COMPONENT),
57 ACPI_DEBUG_INIT(ACPI_FAN_COMPONENT),
58 ACPI_DEBUG_INIT(ACPI_PCI_COMPONENT),
59 ACPI_DEBUG_INIT(ACPI_POWER_COMPONENT),
60 ACPI_DEBUG_INIT(ACPI_CONTAINER_COMPONENT),
61 ACPI_DEBUG_INIT(ACPI_SYSTEM_COMPONENT),
62 ACPI_DEBUG_INIT(ACPI_THERMAL_COMPONENT),
63 ACPI_DEBUG_INIT(ACPI_MEMORY_DEVICE_COMPONENT),
64 ACPI_DEBUG_INIT(ACPI_VIDEO_COMPONENT),
65 ACPI_DEBUG_INIT(ACPI_PROCESSOR_COMPONENT),
66};
67
68static const struct acpi_dlevel acpi_debug_levels[] = {
69 ACPI_DEBUG_INIT(ACPI_LV_INIT),
70 ACPI_DEBUG_INIT(ACPI_LV_DEBUG_OBJECT),
71 ACPI_DEBUG_INIT(ACPI_LV_INFO),
72
73 ACPI_DEBUG_INIT(ACPI_LV_INIT_NAMES),
74 ACPI_DEBUG_INIT(ACPI_LV_PARSE),
75 ACPI_DEBUG_INIT(ACPI_LV_LOAD),
76 ACPI_DEBUG_INIT(ACPI_LV_DISPATCH),
77 ACPI_DEBUG_INIT(ACPI_LV_EXEC),
78 ACPI_DEBUG_INIT(ACPI_LV_NAMES),
79 ACPI_DEBUG_INIT(ACPI_LV_OPREGION),
80 ACPI_DEBUG_INIT(ACPI_LV_BFIELD),
81 ACPI_DEBUG_INIT(ACPI_LV_TABLES),
82 ACPI_DEBUG_INIT(ACPI_LV_VALUES),
83 ACPI_DEBUG_INIT(ACPI_LV_OBJECTS),
84 ACPI_DEBUG_INIT(ACPI_LV_RESOURCES),
85 ACPI_DEBUG_INIT(ACPI_LV_USER_REQUESTS),
86 ACPI_DEBUG_INIT(ACPI_LV_PACKAGE),
87
88 ACPI_DEBUG_INIT(ACPI_LV_ALLOCATIONS),
89 ACPI_DEBUG_INIT(ACPI_LV_FUNCTIONS),
90 ACPI_DEBUG_INIT(ACPI_LV_OPTIMIZATIONS),
91
92 ACPI_DEBUG_INIT(ACPI_LV_MUTEX),
93 ACPI_DEBUG_INIT(ACPI_LV_THREADS),
94 ACPI_DEBUG_INIT(ACPI_LV_IO),
95 ACPI_DEBUG_INIT(ACPI_LV_INTERRUPTS),
96
97 ACPI_DEBUG_INIT(ACPI_LV_AML_DISASSEMBLE),
98 ACPI_DEBUG_INIT(ACPI_LV_VERBOSE_INFO),
99 ACPI_DEBUG_INIT(ACPI_LV_FULL_TABLES),
100 ACPI_DEBUG_INIT(ACPI_LV_EVENTS),
101};
102
103static int param_get_debug_layer(char *buffer, const struct kernel_param *kp)
104{
105 int result = 0;
106 int i;
107
108 result = sprintf(buffer, "%-25s\tHex SET\n", "Description");
109
110 for (i = 0; i < ARRAY_SIZE(acpi_debug_layers); i++) {
111 result += sprintf(buffer + result, "%-25s\t0x%08lX [%c]\n",
112 acpi_debug_layers[i].name,
113 acpi_debug_layers[i].value,
114 (acpi_dbg_layer & acpi_debug_layers[i].value)
115 ? '*' : ' ');
116 }
117 result +=
118 sprintf(buffer + result, "%-25s\t0x%08X [%c]\n", "ACPI_ALL_DRIVERS",
119 ACPI_ALL_DRIVERS,
120 (acpi_dbg_layer & ACPI_ALL_DRIVERS) ==
121 ACPI_ALL_DRIVERS ? '*' : (acpi_dbg_layer & ACPI_ALL_DRIVERS)
122 == 0 ? ' ' : '-');
123 result +=
124 sprintf(buffer + result,
125 "--\ndebug_layer = 0x%08X ( * = enabled)\n",
126 acpi_dbg_layer);
127
128 return result;
129}
130
131static int param_get_debug_level(char *buffer, const struct kernel_param *kp)
132{
133 int result = 0;
134 int i;
135
136 result = sprintf(buffer, "%-25s\tHex SET\n", "Description");
137
138 for (i = 0; i < ARRAY_SIZE(acpi_debug_levels); i++) {
139 result += sprintf(buffer + result, "%-25s\t0x%08lX [%c]\n",
140 acpi_debug_levels[i].name,
141 acpi_debug_levels[i].value,
142 (acpi_dbg_level & acpi_debug_levels[i].value)
143 ? '*' : ' ');
144 }
145 result +=
146 sprintf(buffer + result, "--\ndebug_level = 0x%08X (* = enabled)\n",
147 acpi_dbg_level);
148
149 return result;
150}
151
152static const struct kernel_param_ops param_ops_debug_layer = {
153 .set = param_set_uint,
154 .get = param_get_debug_layer,
155};
156
157static const struct kernel_param_ops param_ops_debug_level = {
158 .set = param_set_uint,
159 .get = param_get_debug_level,
160};
161
162module_param_cb(debug_layer, ¶m_ops_debug_layer, &acpi_dbg_layer, 0644);
163module_param_cb(debug_level, ¶m_ops_debug_level, &acpi_dbg_level, 0644);
164
165static char trace_method_name[6];
166module_param_string(trace_method_name, trace_method_name, 6, 0644);
167static unsigned int trace_debug_layer;
168module_param(trace_debug_layer, uint, 0644);
169static unsigned int trace_debug_level;
170module_param(trace_debug_level, uint, 0644);
171
172static int param_set_trace_state(const char *val, struct kernel_param *kp)
173{
174 int result = 0;
175
176 if (!strncmp(val, "enable", sizeof("enable") - 1)) {
177 result = acpi_debug_trace(trace_method_name, trace_debug_level,
178 trace_debug_layer, 0);
179 if (result)
180 result = -EBUSY;
181 goto exit;
182 }
183
184 if (!strncmp(val, "disable", sizeof("disable") - 1)) {
185 int name = 0;
186 result = acpi_debug_trace((char *)&name, trace_debug_level,
187 trace_debug_layer, 0);
188 if (result)
189 result = -EBUSY;
190 goto exit;
191 }
192
193 if (!strncmp(val, "1", 1)) {
194 result = acpi_debug_trace(trace_method_name, trace_debug_level,
195 trace_debug_layer, 1);
196 if (result)
197 result = -EBUSY;
198 goto exit;
199 }
200
201 result = -EINVAL;
202exit:
203 return result;
204}
205
206static int param_get_trace_state(char *buffer, struct kernel_param *kp)
207{
208 if (!acpi_gbl_trace_method_name)
209 return sprintf(buffer, "disable");
210 else {
211 if (acpi_gbl_trace_flags & 1)
212 return sprintf(buffer, "1");
213 else
214 return sprintf(buffer, "enable");
215 }
216 return 0;
217}
218
219module_param_call(trace_state, param_set_trace_state, param_get_trace_state,
220 NULL, 0644);
221#endif
222
223
224
225
226module_param_named(aml_debug_output, acpi_gbl_enable_aml_debug_object,
227 byte, 0644);
228MODULE_PARM_DESC(aml_debug_output,
229 "To enable/disable the ACPI Debug Object output.");
230
231
232static int param_get_acpica_version(char *buffer, struct kernel_param *kp)
233{
234 int result;
235
236 result = sprintf(buffer, "%x", ACPI_CA_VERSION);
237
238 return result;
239}
240
241module_param_call(acpica_version, NULL, param_get_acpica_version, NULL, 0444);
242
243
244
245
246
247
248
249static LIST_HEAD(acpi_table_attr_list);
250static struct kobject *tables_kobj;
251static struct kobject *dynamic_tables_kobj;
252static struct kobject *hotplug_kobj;
253
254struct acpi_table_attr {
255 struct bin_attribute attr;
256 char name[8];
257 int instance;
258 struct list_head node;
259};
260
261static ssize_t acpi_table_show(struct file *filp, struct kobject *kobj,
262 struct bin_attribute *bin_attr, char *buf,
263 loff_t offset, size_t count)
264{
265 struct acpi_table_attr *table_attr =
266 container_of(bin_attr, struct acpi_table_attr, attr);
267 struct acpi_table_header *table_header = NULL;
268 acpi_status status;
269 char name[ACPI_NAME_SIZE];
270
271 if (strncmp(table_attr->name, "NULL", 4))
272 memcpy(name, table_attr->name, ACPI_NAME_SIZE);
273 else
274 memcpy(name, "\0\0\0\0", 4);
275
276 status = acpi_get_table(name, table_attr->instance, &table_header);
277 if (ACPI_FAILURE(status))
278 return -ENODEV;
279
280 return memory_read_from_buffer(buf, count, &offset,
281 table_header, table_header->length);
282}
283
284static void acpi_table_attr_init(struct acpi_table_attr *table_attr,
285 struct acpi_table_header *table_header)
286{
287 struct acpi_table_header *header = NULL;
288 struct acpi_table_attr *attr = NULL;
289
290 sysfs_attr_init(&table_attr->attr.attr);
291 if (table_header->signature[0] != '\0')
292 memcpy(table_attr->name, table_header->signature,
293 ACPI_NAME_SIZE);
294 else
295 memcpy(table_attr->name, "NULL", 4);
296
297 list_for_each_entry(attr, &acpi_table_attr_list, node) {
298 if (!memcmp(table_attr->name, attr->name, ACPI_NAME_SIZE))
299 if (table_attr->instance < attr->instance)
300 table_attr->instance = attr->instance;
301 }
302 table_attr->instance++;
303
304 if (table_attr->instance > 1 || (table_attr->instance == 1 &&
305 !acpi_get_table
306 (table_header->signature, 2, &header)))
307 sprintf(table_attr->name + ACPI_NAME_SIZE, "%d",
308 table_attr->instance);
309
310 table_attr->attr.size = 0;
311 table_attr->attr.read = acpi_table_show;
312 table_attr->attr.attr.name = table_attr->name;
313 table_attr->attr.attr.mode = 0400;
314
315 return;
316}
317
318acpi_status acpi_sysfs_table_handler(u32 event, void *table, void *context)
319{
320 struct acpi_table_attr *table_attr;
321
322 switch (event) {
323 case ACPI_TABLE_EVENT_INSTALL:
324 table_attr =
325 kzalloc(sizeof(struct acpi_table_attr), GFP_KERNEL);
326 if (!table_attr)
327 return AE_NO_MEMORY;
328
329 acpi_table_attr_init(table_attr, table);
330 if (sysfs_create_bin_file(dynamic_tables_kobj,
331 &table_attr->attr)) {
332 kfree(table_attr);
333 return AE_ERROR;
334 } else
335 list_add_tail(&table_attr->node, &acpi_table_attr_list);
336 break;
337 case ACPI_TABLE_EVENT_LOAD:
338 case ACPI_TABLE_EVENT_UNLOAD:
339 case ACPI_TABLE_EVENT_UNINSTALL:
340
341
342
343
344
345 break;
346 default:
347 return AE_BAD_PARAMETER;
348 }
349 return AE_OK;
350}
351
352static int acpi_tables_sysfs_init(void)
353{
354 struct acpi_table_attr *table_attr;
355 struct acpi_table_header *table_header = NULL;
356 int table_index = 0;
357 int result;
358
359 tables_kobj = kobject_create_and_add("tables", acpi_kobj);
360 if (!tables_kobj)
361 goto err;
362
363 dynamic_tables_kobj = kobject_create_and_add("dynamic", tables_kobj);
364 if (!dynamic_tables_kobj)
365 goto err_dynamic_tables;
366
367 do {
368 result = acpi_get_table_by_index(table_index, &table_header);
369 if (!result) {
370 table_index++;
371 table_attr = NULL;
372 table_attr =
373 kzalloc(sizeof(struct acpi_table_attr), GFP_KERNEL);
374 if (!table_attr)
375 return -ENOMEM;
376
377 acpi_table_attr_init(table_attr, table_header);
378 result =
379 sysfs_create_bin_file(tables_kobj,
380 &table_attr->attr);
381 if (result) {
382 kfree(table_attr);
383 return result;
384 } else
385 list_add_tail(&table_attr->node,
386 &acpi_table_attr_list);
387 }
388 } while (!result);
389 kobject_uevent(tables_kobj, KOBJ_ADD);
390 kobject_uevent(dynamic_tables_kobj, KOBJ_ADD);
391 return 0;
392err_dynamic_tables:
393 kobject_put(tables_kobj);
394err:
395 return -ENOMEM;
396}
397
398
399
400
401
402
403u32 acpi_irq_handled;
404u32 acpi_irq_not_handled;
405
406#define COUNT_GPE 0
407#define COUNT_SCI 1
408#define COUNT_SCI_NOT 2
409#define COUNT_ERROR 3
410#define NUM_COUNTERS_EXTRA 4
411
412struct event_counter {
413 u32 count;
414 u32 flags;
415};
416
417static struct event_counter *all_counters;
418static u32 num_gpes;
419static u32 num_counters;
420static struct attribute **all_attrs;
421static u32 acpi_gpe_count;
422
423static struct attribute_group interrupt_stats_attr_group = {
424 .name = "interrupts",
425};
426
427static struct kobj_attribute *counter_attrs;
428
429static void delete_gpe_attr_array(void)
430{
431 struct event_counter *tmp = all_counters;
432
433 all_counters = NULL;
434 kfree(tmp);
435
436 if (counter_attrs) {
437 int i;
438
439 for (i = 0; i < num_gpes; i++)
440 kfree(counter_attrs[i].attr.name);
441
442 kfree(counter_attrs);
443 }
444 kfree(all_attrs);
445
446 return;
447}
448
449static void gpe_count(u32 gpe_number)
450{
451 acpi_gpe_count++;
452
453 if (!all_counters)
454 return;
455
456 if (gpe_number < num_gpes)
457 all_counters[gpe_number].count++;
458 else
459 all_counters[num_gpes + ACPI_NUM_FIXED_EVENTS +
460 COUNT_ERROR].count++;
461
462 return;
463}
464
465static void fixed_event_count(u32 event_number)
466{
467 if (!all_counters)
468 return;
469
470 if (event_number < ACPI_NUM_FIXED_EVENTS)
471 all_counters[num_gpes + event_number].count++;
472 else
473 all_counters[num_gpes + ACPI_NUM_FIXED_EVENTS +
474 COUNT_ERROR].count++;
475
476 return;
477}
478
479static void acpi_global_event_handler(u32 event_type, acpi_handle device,
480 u32 event_number, void *context)
481{
482 if (event_type == ACPI_EVENT_TYPE_GPE)
483 gpe_count(event_number);
484
485 if (event_type == ACPI_EVENT_TYPE_FIXED)
486 fixed_event_count(event_number);
487}
488
489static int get_status(u32 index, acpi_event_status *status,
490 acpi_handle *handle)
491{
492 int result = 0;
493
494 if (index >= num_gpes + ACPI_NUM_FIXED_EVENTS)
495 goto end;
496
497 if (index < num_gpes) {
498 result = acpi_get_gpe_device(index, handle);
499 if (result) {
500 ACPI_EXCEPTION((AE_INFO, AE_NOT_FOUND,
501 "Invalid GPE 0x%x", index));
502 goto end;
503 }
504 result = acpi_get_gpe_status(*handle, index, status);
505 } else if (index < (num_gpes + ACPI_NUM_FIXED_EVENTS))
506 result = acpi_get_event_status(index - num_gpes, status);
507
508end:
509 return result;
510}
511
512static ssize_t counter_show(struct kobject *kobj,
513 struct kobj_attribute *attr, char *buf)
514{
515 int index = attr - counter_attrs;
516 int size;
517 acpi_handle handle;
518 acpi_event_status status;
519 int result = 0;
520
521 all_counters[num_gpes + ACPI_NUM_FIXED_EVENTS + COUNT_SCI].count =
522 acpi_irq_handled;
523 all_counters[num_gpes + ACPI_NUM_FIXED_EVENTS + COUNT_SCI_NOT].count =
524 acpi_irq_not_handled;
525 all_counters[num_gpes + ACPI_NUM_FIXED_EVENTS + COUNT_GPE].count =
526 acpi_gpe_count;
527 size = sprintf(buf, "%8d", all_counters[index].count);
528
529
530 if (index >= num_gpes + ACPI_NUM_FIXED_EVENTS)
531 goto end;
532
533 result = get_status(index, &status, &handle);
534 if (result)
535 goto end;
536
537 if (!(status & ACPI_EVENT_FLAG_ENABLE_SET))
538 size += sprintf(buf + size, " invalid");
539 else if (status & ACPI_EVENT_FLAG_ENABLED)
540 size += sprintf(buf + size, " enabled");
541 else if (status & ACPI_EVENT_FLAG_WAKE_ENABLED)
542 size += sprintf(buf + size, " wake_enabled");
543 else
544 size += sprintf(buf + size, " disabled");
545
546end:
547 size += sprintf(buf + size, "\n");
548 return result ? result : size;
549}
550
551
552
553
554
555
556static ssize_t counter_set(struct kobject *kobj,
557 struct kobj_attribute *attr, const char *buf,
558 size_t size)
559{
560 int index = attr - counter_attrs;
561 acpi_event_status status;
562 acpi_handle handle;
563 int result = 0;
564
565 if (index == num_gpes + ACPI_NUM_FIXED_EVENTS + COUNT_SCI) {
566 int i;
567 for (i = 0; i < num_counters; ++i)
568 all_counters[i].count = 0;
569 acpi_gpe_count = 0;
570 acpi_irq_handled = 0;
571 acpi_irq_not_handled = 0;
572 goto end;
573 }
574
575
576 result = get_status(index, &status, &handle);
577 if (result)
578 goto end;
579
580 if (!(status & ACPI_EVENT_FLAG_ENABLE_SET)) {
581 printk(KERN_WARNING PREFIX
582 "Can not change Invalid GPE/Fixed Event status\n");
583 return -EINVAL;
584 }
585
586 if (index < num_gpes) {
587 if (!strcmp(buf, "disable\n") &&
588 (status & ACPI_EVENT_FLAG_ENABLED))
589 result = acpi_disable_gpe(handle, index);
590 else if (!strcmp(buf, "enable\n") &&
591 !(status & ACPI_EVENT_FLAG_ENABLED))
592 result = acpi_enable_gpe(handle, index);
593 else if (!strcmp(buf, "clear\n") &&
594 (status & ACPI_EVENT_FLAG_SET))
595 result = acpi_clear_gpe(handle, index);
596 else
597 all_counters[index].count = strtoul(buf, NULL, 0);
598 } else if (index < num_gpes + ACPI_NUM_FIXED_EVENTS) {
599 int event = index - num_gpes;
600 if (!strcmp(buf, "disable\n") &&
601 (status & ACPI_EVENT_FLAG_ENABLED))
602 result = acpi_disable_event(event, ACPI_NOT_ISR);
603 else if (!strcmp(buf, "enable\n") &&
604 !(status & ACPI_EVENT_FLAG_ENABLED))
605 result = acpi_enable_event(event, ACPI_NOT_ISR);
606 else if (!strcmp(buf, "clear\n") &&
607 (status & ACPI_EVENT_FLAG_SET))
608 result = acpi_clear_event(event);
609 else
610 all_counters[index].count = strtoul(buf, NULL, 0);
611 } else
612 all_counters[index].count = strtoul(buf, NULL, 0);
613
614 if (ACPI_FAILURE(result))
615 result = -EINVAL;
616end:
617 return result ? result : size;
618}
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641#define ACPI_MASKABLE_GPE_MAX 0x80
642
643static u64 __initdata acpi_masked_gpes;
644
645static int __init acpi_gpe_set_masked_gpes(char *val)
646{
647 u8 gpe;
648
649 if (kstrtou8(val, 0, &gpe) || gpe > ACPI_MASKABLE_GPE_MAX)
650 return -EINVAL;
651 acpi_masked_gpes |= ((u64)1<<gpe);
652
653 return 1;
654}
655__setup("acpi_mask_gpe=", acpi_gpe_set_masked_gpes);
656
657void __init acpi_gpe_apply_masked_gpes(void)
658{
659 acpi_handle handle;
660 acpi_status status;
661 u8 gpe;
662
663 for (gpe = 0;
664 gpe < min_t(u8, ACPI_MASKABLE_GPE_MAX, acpi_current_gpe_count);
665 gpe++) {
666 if (acpi_masked_gpes & ((u64)1<<gpe)) {
667 status = acpi_get_gpe_device(gpe, &handle);
668 if (ACPI_SUCCESS(status)) {
669 pr_info("Masking GPE 0x%x.\n", gpe);
670 (void)acpi_mask_gpe(handle, gpe, TRUE);
671 }
672 }
673 }
674}
675
676void acpi_irq_stats_init(void)
677{
678 acpi_status status;
679 int i;
680
681 if (all_counters)
682 return;
683
684 num_gpes = acpi_current_gpe_count;
685 num_counters = num_gpes + ACPI_NUM_FIXED_EVENTS + NUM_COUNTERS_EXTRA;
686
687 all_attrs = kzalloc(sizeof(struct attribute *) * (num_counters + 1),
688 GFP_KERNEL);
689 if (all_attrs == NULL)
690 return;
691
692 all_counters = kzalloc(sizeof(struct event_counter) * (num_counters),
693 GFP_KERNEL);
694 if (all_counters == NULL)
695 goto fail;
696
697 status = acpi_install_global_event_handler(acpi_global_event_handler, NULL);
698 if (ACPI_FAILURE(status))
699 goto fail;
700
701 counter_attrs = kzalloc(sizeof(struct kobj_attribute) * (num_counters),
702 GFP_KERNEL);
703 if (counter_attrs == NULL)
704 goto fail;
705
706 for (i = 0; i < num_counters; ++i) {
707 char buffer[12];
708 char *name;
709
710 if (i < num_gpes)
711 sprintf(buffer, "gpe%02X", i);
712 else if (i == num_gpes + ACPI_EVENT_PMTIMER)
713 sprintf(buffer, "ff_pmtimer");
714 else if (i == num_gpes + ACPI_EVENT_GLOBAL)
715 sprintf(buffer, "ff_gbl_lock");
716 else if (i == num_gpes + ACPI_EVENT_POWER_BUTTON)
717 sprintf(buffer, "ff_pwr_btn");
718 else if (i == num_gpes + ACPI_EVENT_SLEEP_BUTTON)
719 sprintf(buffer, "ff_slp_btn");
720 else if (i == num_gpes + ACPI_EVENT_RTC)
721 sprintf(buffer, "ff_rt_clk");
722 else if (i == num_gpes + ACPI_NUM_FIXED_EVENTS + COUNT_GPE)
723 sprintf(buffer, "gpe_all");
724 else if (i == num_gpes + ACPI_NUM_FIXED_EVENTS + COUNT_SCI)
725 sprintf(buffer, "sci");
726 else if (i == num_gpes + ACPI_NUM_FIXED_EVENTS + COUNT_SCI_NOT)
727 sprintf(buffer, "sci_not");
728 else if (i == num_gpes + ACPI_NUM_FIXED_EVENTS + COUNT_ERROR)
729 sprintf(buffer, "error");
730 else
731 sprintf(buffer, "bug%02X", i);
732
733 name = kzalloc(strlen(buffer) + 1, GFP_KERNEL);
734 if (name == NULL)
735 goto fail;
736 strncpy(name, buffer, strlen(buffer) + 1);
737
738 sysfs_attr_init(&counter_attrs[i].attr);
739 counter_attrs[i].attr.name = name;
740 counter_attrs[i].attr.mode = 0644;
741 counter_attrs[i].show = counter_show;
742 counter_attrs[i].store = counter_set;
743
744 all_attrs[i] = &counter_attrs[i].attr;
745 }
746
747 interrupt_stats_attr_group.attrs = all_attrs;
748 if (!sysfs_create_group(acpi_kobj, &interrupt_stats_attr_group))
749 return;
750
751fail:
752 delete_gpe_attr_array();
753 return;
754}
755
756static void __exit interrupt_stats_exit(void)
757{
758 sysfs_remove_group(acpi_kobj, &interrupt_stats_attr_group);
759
760 delete_gpe_attr_array();
761
762 return;
763}
764
765static ssize_t
766acpi_show_profile(struct device *dev, struct device_attribute *attr,
767 char *buf)
768{
769 return sprintf(buf, "%d\n", acpi_gbl_FADT.preferred_profile);
770}
771
772static const struct device_attribute pm_profile_attr =
773 __ATTR(pm_profile, S_IRUGO, acpi_show_profile, NULL);
774
775static ssize_t hotplug_enabled_show(struct kobject *kobj,
776 struct kobj_attribute *attr, char *buf)
777{
778 struct acpi_hotplug_profile *hotplug = to_acpi_hotplug_profile(kobj);
779
780 return sprintf(buf, "%d\n", hotplug->enabled);
781}
782
783static ssize_t hotplug_enabled_store(struct kobject *kobj,
784 struct kobj_attribute *attr,
785 const char *buf, size_t size)
786{
787 struct acpi_hotplug_profile *hotplug = to_acpi_hotplug_profile(kobj);
788 unsigned int val;
789
790 if (kstrtouint(buf, 10, &val) || val > 1)
791 return -EINVAL;
792
793 acpi_scan_hotplug_enabled(hotplug, val);
794 return size;
795}
796
797static struct kobj_attribute hotplug_enabled_attr =
798 __ATTR(enabled, S_IRUGO | S_IWUSR, hotplug_enabled_show,
799 hotplug_enabled_store);
800
801static struct attribute *hotplug_profile_attrs[] = {
802 &hotplug_enabled_attr.attr,
803 NULL
804};
805
806static struct kobj_type acpi_hotplug_profile_ktype = {
807 .sysfs_ops = &kobj_sysfs_ops,
808 .default_attrs = hotplug_profile_attrs,
809};
810
811void acpi_sysfs_add_hotplug_profile(struct acpi_hotplug_profile *hotplug,
812 const char *name)
813{
814 int error;
815
816 if (!hotplug_kobj)
817 goto err_out;
818
819 error = kobject_init_and_add(&hotplug->kobj,
820 &acpi_hotplug_profile_ktype, hotplug_kobj, "%s", name);
821 if (error)
822 goto err_out;
823
824 kobject_uevent(&hotplug->kobj, KOBJ_ADD);
825 return;
826
827 err_out:
828 pr_err(PREFIX "Unable to add hotplug profile '%s'\n", name);
829}
830
831static ssize_t force_remove_show(struct kobject *kobj,
832 struct kobj_attribute *attr, char *buf)
833{
834 return sprintf(buf, "%d\n", !!acpi_force_hot_remove);
835}
836
837static ssize_t force_remove_store(struct kobject *kobj,
838 struct kobj_attribute *attr,
839 const char *buf, size_t size)
840{
841 bool val;
842 int ret;
843
844 ret = strtobool(buf, &val);
845 if (ret < 0)
846 return ret;
847
848 lock_device_hotplug();
849 acpi_force_hot_remove = val;
850 unlock_device_hotplug();
851 return size;
852}
853
854static const struct kobj_attribute force_remove_attr =
855 __ATTR(force_remove, S_IRUGO | S_IWUSR, force_remove_show,
856 force_remove_store);
857
858int __init acpi_sysfs_init(void)
859{
860 int result;
861
862 result = acpi_tables_sysfs_init();
863 if (result)
864 return result;
865
866 hotplug_kobj = kobject_create_and_add("hotplug", acpi_kobj);
867 result = sysfs_create_file(hotplug_kobj, &force_remove_attr.attr);
868 if (result)
869 return result;
870
871 result = sysfs_create_file(acpi_kobj, &pm_profile_attr.attr);
872 return result;
873}
874
