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authorLen Brown <len.brown@intel.com>2005-08-05 00:44:28 -0400
committerLen Brown <len.brown@intel.com>2005-08-05 00:45:14 -0400
commit4be44fcd3bf648b782f4460fd06dfae6c42ded4b (patch)
tree5b5b7d296ea58786f53b95e5eac9565ff66890b0 /drivers/acpi/scan.c
parentc65ade4dc8b486e8c8b9b0a6399789a5428e2039 (diff)
[ACPI] Lindent all ACPI files
Signed-off-by: Len Brown <len.brown@intel.com>
Diffstat (limited to 'drivers/acpi/scan.c')
-rw-r--r--drivers/acpi/scan.c437
1 files changed, 194 insertions, 243 deletions
diff --git a/drivers/acpi/scan.c b/drivers/acpi/scan.c
index cbcda30c172d..8a3ea41063ec 100644
--- a/drivers/acpi/scan.c
+++ b/drivers/acpi/scan.c
@@ -9,14 +9,10 @@
9#include <acpi/acpi_drivers.h> 9#include <acpi/acpi_drivers.h>
10#include <acpi/acinterp.h> /* for acpi_ex_eisa_id_to_string() */ 10#include <acpi/acinterp.h> /* for acpi_ex_eisa_id_to_string() */
11 11
12
13#define _COMPONENT ACPI_BUS_COMPONENT 12#define _COMPONENT ACPI_BUS_COMPONENT
14ACPI_MODULE_NAME ("scan") 13ACPI_MODULE_NAME("scan")
15
16#define STRUCT_TO_INT(s) (*((int*)&s)) 14#define STRUCT_TO_INT(s) (*((int*)&s))
17 15extern struct acpi_device *acpi_root;
18extern struct acpi_device *acpi_root;
19
20 16
21#define ACPI_BUS_CLASS "system_bus" 17#define ACPI_BUS_CLASS "system_bus"
22#define ACPI_BUS_HID "ACPI_BUS" 18#define ACPI_BUS_HID "ACPI_BUS"
@@ -27,13 +23,11 @@ static LIST_HEAD(acpi_device_list);
27DEFINE_SPINLOCK(acpi_device_lock); 23DEFINE_SPINLOCK(acpi_device_lock);
28LIST_HEAD(acpi_wakeup_device_list); 24LIST_HEAD(acpi_wakeup_device_list);
29 25
30static int 26static int acpi_bus_trim(struct acpi_device *start, int rmdevice);
31acpi_bus_trim(struct acpi_device *start,
32 int rmdevice);
33 27
34static void acpi_device_release(struct kobject * kobj) 28static void acpi_device_release(struct kobject *kobj)
35{ 29{
36 struct acpi_device * dev = container_of(kobj,struct acpi_device,kobj); 30 struct acpi_device *dev = container_of(kobj, struct acpi_device, kobj);
37 if (dev->pnp.cid_list) 31 if (dev->pnp.cid_list)
38 kfree(dev->pnp.cid_list); 32 kfree(dev->pnp.cid_list);
39 kfree(dev); 33 kfree(dev);
@@ -41,34 +35,34 @@ static void acpi_device_release(struct kobject * kobj)
41 35
42struct acpi_device_attribute { 36struct acpi_device_attribute {
43 struct attribute attr; 37 struct attribute attr;
44 ssize_t (*show)(struct acpi_device *, char *); 38 ssize_t(*show) (struct acpi_device *, char *);
45 ssize_t (*store)(struct acpi_device *, const char *, size_t); 39 ssize_t(*store) (struct acpi_device *, const char *, size_t);
46}; 40};
47 41
48typedef void acpi_device_sysfs_files(struct kobject *, 42typedef void acpi_device_sysfs_files(struct kobject *,
49 const struct attribute *); 43 const struct attribute *);
50 44
51static void setup_sys_fs_device_files(struct acpi_device *dev, 45static void setup_sys_fs_device_files(struct acpi_device *dev,
52 acpi_device_sysfs_files *func); 46 acpi_device_sysfs_files * func);
53 47
54#define create_sysfs_device_files(dev) \ 48#define create_sysfs_device_files(dev) \
55 setup_sys_fs_device_files(dev, (acpi_device_sysfs_files *)&sysfs_create_file) 49 setup_sys_fs_device_files(dev, (acpi_device_sysfs_files *)&sysfs_create_file)
56#define remove_sysfs_device_files(dev) \ 50#define remove_sysfs_device_files(dev) \
57 setup_sys_fs_device_files(dev, (acpi_device_sysfs_files *)&sysfs_remove_file) 51 setup_sys_fs_device_files(dev, (acpi_device_sysfs_files *)&sysfs_remove_file)
58 52
59
60#define to_acpi_device(n) container_of(n, struct acpi_device, kobj) 53#define to_acpi_device(n) container_of(n, struct acpi_device, kobj)
61#define to_handle_attr(n) container_of(n, struct acpi_device_attribute, attr); 54#define to_handle_attr(n) container_of(n, struct acpi_device_attribute, attr);
62 55
63static ssize_t acpi_device_attr_show(struct kobject *kobj, 56static ssize_t acpi_device_attr_show(struct kobject *kobj,
64 struct attribute *attr, char *buf) 57 struct attribute *attr, char *buf)
65{ 58{
66 struct acpi_device *device = to_acpi_device(kobj); 59 struct acpi_device *device = to_acpi_device(kobj);
67 struct acpi_device_attribute *attribute = to_handle_attr(attr); 60 struct acpi_device_attribute *attribute = to_handle_attr(attr);
68 return attribute->show ? attribute->show(device, buf) : -EIO; 61 return attribute->show ? attribute->show(device, buf) : -EIO;
69} 62}
70static ssize_t acpi_device_attr_store(struct kobject *kobj, 63static ssize_t acpi_device_attr_store(struct kobject *kobj,
71 struct attribute *attr, const char *buf, size_t len) 64 struct attribute *attr, const char *buf,
65 size_t len)
72{ 66{
73 struct acpi_device *device = to_acpi_device(kobj); 67 struct acpi_device *device = to_acpi_device(kobj);
74 struct acpi_device_attribute *attribute = to_handle_attr(attr); 68 struct acpi_device_attribute *attribute = to_handle_attr(attr);
@@ -76,13 +70,13 @@ static ssize_t acpi_device_attr_store(struct kobject *kobj,
76} 70}
77 71
78static struct sysfs_ops acpi_device_sysfs_ops = { 72static struct sysfs_ops acpi_device_sysfs_ops = {
79 .show = acpi_device_attr_show, 73 .show = acpi_device_attr_show,
80 .store = acpi_device_attr_store, 74 .store = acpi_device_attr_store,
81}; 75};
82 76
83static struct kobj_type ktype_acpi_ns = { 77static struct kobj_type ktype_acpi_ns = {
84 .sysfs_ops = &acpi_device_sysfs_ops, 78 .sysfs_ops = &acpi_device_sysfs_ops,
85 .release = acpi_device_release, 79 .release = acpi_device_release,
86}; 80};
87 81
88static int namespace_hotplug(struct kset *kset, struct kobject *kobj, 82static int namespace_hotplug(struct kset *kset, struct kobject *kobj,
@@ -110,16 +104,16 @@ static struct kset_hotplug_ops namespace_hotplug_ops = {
110}; 104};
111 105
112static struct kset acpi_namespace_kset = { 106static struct kset acpi_namespace_kset = {
113 .kobj = { 107 .kobj = {
114 .name = "namespace", 108 .name = "namespace",
115 }, 109 },
116 .subsys = &acpi_subsys, 110 .subsys = &acpi_subsys,
117 .ktype = &ktype_acpi_ns, 111 .ktype = &ktype_acpi_ns,
118 .hotplug_ops = &namespace_hotplug_ops, 112 .hotplug_ops = &namespace_hotplug_ops,
119}; 113};
120 114
121 115static void acpi_device_register(struct acpi_device *device,
122static void acpi_device_register(struct acpi_device * device, struct acpi_device * parent) 116 struct acpi_device *parent)
123{ 117{
124 /* 118 /*
125 * Linkage 119 * Linkage
@@ -134,14 +128,14 @@ static void acpi_device_register(struct acpi_device * device, struct acpi_device
134 spin_lock(&acpi_device_lock); 128 spin_lock(&acpi_device_lock);
135 if (device->parent) { 129 if (device->parent) {
136 list_add_tail(&device->node, &device->parent->children); 130 list_add_tail(&device->node, &device->parent->children);
137 list_add_tail(&device->g_list,&device->parent->g_list); 131 list_add_tail(&device->g_list, &device->parent->g_list);
138 } else 132 } else
139 list_add_tail(&device->g_list,&acpi_device_list); 133 list_add_tail(&device->g_list, &acpi_device_list);
140 if (device->wakeup.flags.valid) 134 if (device->wakeup.flags.valid)
141 list_add_tail(&device->wakeup_list,&acpi_wakeup_device_list); 135 list_add_tail(&device->wakeup_list, &acpi_wakeup_device_list);
142 spin_unlock(&acpi_device_lock); 136 spin_unlock(&acpi_device_lock);
143 137
144 strlcpy(device->kobj.name,device->pnp.bus_id,KOBJ_NAME_LEN); 138 strlcpy(device->kobj.name, device->pnp.bus_id, KOBJ_NAME_LEN);
145 if (parent) 139 if (parent)
146 device->kobj.parent = &parent->kobj; 140 device->kobj.parent = &parent->kobj;
147 device->kobj.ktype = &ktype_acpi_ns; 141 device->kobj.ktype = &ktype_acpi_ns;
@@ -150,10 +144,7 @@ static void acpi_device_register(struct acpi_device * device, struct acpi_device
150 create_sysfs_device_files(device); 144 create_sysfs_device_files(device);
151} 145}
152 146
153static int 147static int acpi_device_unregister(struct acpi_device *device, int type)
154acpi_device_unregister (
155 struct acpi_device *device,
156 int type)
157{ 148{
158 spin_lock(&acpi_device_lock); 149 spin_lock(&acpi_device_lock);
159 if (device->parent) { 150 if (device->parent) {
@@ -172,11 +163,7 @@ acpi_device_unregister (
172 return 0; 163 return 0;
173} 164}
174 165
175void 166void acpi_bus_data_handler(acpi_handle handle, u32 function, void *context)
176acpi_bus_data_handler (
177 acpi_handle handle,
178 u32 function,
179 void *context)
180{ 167{
181 ACPI_FUNCTION_TRACE("acpi_bus_data_handler"); 168 ACPI_FUNCTION_TRACE("acpi_bus_data_handler");
182 169
@@ -185,13 +172,11 @@ acpi_bus_data_handler (
185 return_VOID; 172 return_VOID;
186} 173}
187 174
188static int 175static int acpi_bus_get_power_flags(struct acpi_device *device)
189acpi_bus_get_power_flags (
190 struct acpi_device *device)
191{ 176{
192 acpi_status status = 0; 177 acpi_status status = 0;
193 acpi_handle handle = NULL; 178 acpi_handle handle = NULL;
194 u32 i = 0; 179 u32 i = 0;
195 180
196 ACPI_FUNCTION_TRACE("acpi_bus_get_power_flags"); 181 ACPI_FUNCTION_TRACE("acpi_bus_get_power_flags");
197 182
@@ -210,11 +195,11 @@ acpi_bus_get_power_flags (
210 */ 195 */
211 for (i = ACPI_STATE_D0; i <= ACPI_STATE_D3; i++) { 196 for (i = ACPI_STATE_D0; i <= ACPI_STATE_D3; i++) {
212 struct acpi_device_power_state *ps = &device->power.states[i]; 197 struct acpi_device_power_state *ps = &device->power.states[i];
213 char object_name[5] = {'_','P','R','0'+i,'\0'}; 198 char object_name[5] = { '_', 'P', 'R', '0' + i, '\0' };
214 199
215 /* Evaluate "_PRx" to se if power resources are referenced */ 200 /* Evaluate "_PRx" to se if power resources are referenced */
216 acpi_evaluate_reference(device->handle, object_name, NULL, 201 acpi_evaluate_reference(device->handle, object_name, NULL,
217 &ps->resources); 202 &ps->resources);
218 if (ps->resources.count) { 203 if (ps->resources.count) {
219 device->power.flags.power_resources = 1; 204 device->power.flags.power_resources = 1;
220 ps->flags.valid = 1; 205 ps->flags.valid = 1;
@@ -232,7 +217,7 @@ acpi_bus_get_power_flags (
232 if (ps->resources.count || ps->flags.explicit_set) 217 if (ps->resources.count || ps->flags.explicit_set)
233 ps->flags.valid = 1; 218 ps->flags.valid = 1;
234 219
235 ps->power = -1; /* Unknown - driver assigned */ 220 ps->power = -1; /* Unknown - driver assigned */
236 ps->latency = -1; /* Unknown - driver assigned */ 221 ps->latency = -1; /* Unknown - driver assigned */
237 } 222 }
238 223
@@ -249,13 +234,10 @@ acpi_bus_get_power_flags (
249 return_VALUE(0); 234 return_VALUE(0);
250} 235}
251 236
252int 237int acpi_match_ids(struct acpi_device *device, char *ids)
253acpi_match_ids (
254 struct acpi_device *device,
255 char *ids)
256{ 238{
257 int error = 0; 239 int error = 0;
258 struct acpi_buffer buffer = {ACPI_ALLOCATE_BUFFER, NULL}; 240 struct acpi_buffer buffer = { ACPI_ALLOCATE_BUFFER, NULL };
259 241
260 if (device->flags.hardware_id) 242 if (device->flags.hardware_id)
261 if (strstr(ids, device->pnp.hardware_id)) 243 if (strstr(ids, device->pnp.hardware_id))
@@ -266,27 +248,25 @@ acpi_match_ids (
266 int i; 248 int i;
267 249
268 /* compare multiple _CID entries against driver ids */ 250 /* compare multiple _CID entries against driver ids */
269 for (i = 0; i < cid_list->count; i++) 251 for (i = 0; i < cid_list->count; i++) {
270 {
271 if (strstr(ids, cid_list->id[i].value)) 252 if (strstr(ids, cid_list->id[i].value))
272 goto Done; 253 goto Done;
273 } 254 }
274 } 255 }
275 error = -ENOENT; 256 error = -ENOENT;
276 257
277 Done: 258 Done:
278 if (buffer.pointer) 259 if (buffer.pointer)
279 acpi_os_free(buffer.pointer); 260 acpi_os_free(buffer.pointer);
280 return error; 261 return error;
281} 262}
282 263
283static acpi_status 264static acpi_status
284acpi_bus_extract_wakeup_device_power_package ( 265acpi_bus_extract_wakeup_device_power_package(struct acpi_device *device,
285 struct acpi_device *device, 266 union acpi_object *package)
286 union acpi_object *package)
287{ 267{
288 int i = 0; 268 int i = 0;
289 union acpi_object *element = NULL; 269 union acpi_object *element = NULL;
290 270
291 if (!device || !package || (package->package.count < 2)) 271 if (!device || !package || (package->package.count < 2))
292 return AE_BAD_PARAMETER; 272 return AE_BAD_PARAMETER;
@@ -296,14 +276,17 @@ acpi_bus_extract_wakeup_device_power_package (
296 return AE_BAD_PARAMETER; 276 return AE_BAD_PARAMETER;
297 if (element->type == ACPI_TYPE_PACKAGE) { 277 if (element->type == ACPI_TYPE_PACKAGE) {
298 if ((element->package.count < 2) || 278 if ((element->package.count < 2) ||
299 (element->package.elements[0].type != ACPI_TYPE_LOCAL_REFERENCE) || 279 (element->package.elements[0].type !=
300 (element->package.elements[1].type != ACPI_TYPE_INTEGER)) 280 ACPI_TYPE_LOCAL_REFERENCE)
281 || (element->package.elements[1].type != ACPI_TYPE_INTEGER))
301 return AE_BAD_DATA; 282 return AE_BAD_DATA;
302 device->wakeup.gpe_device = element->package.elements[0].reference.handle; 283 device->wakeup.gpe_device =
303 device->wakeup.gpe_number = (u32)element->package.elements[1].integer.value; 284 element->package.elements[0].reference.handle;
304 }else if (element->type == ACPI_TYPE_INTEGER) { 285 device->wakeup.gpe_number =
286 (u32) element->package.elements[1].integer.value;
287 } else if (element->type == ACPI_TYPE_INTEGER) {
305 device->wakeup.gpe_number = element->integer.value; 288 device->wakeup.gpe_number = element->integer.value;
306 }else 289 } else
307 return AE_BAD_DATA; 290 return AE_BAD_DATA;
308 291
309 element = &(package->package.elements[1]); 292 element = &(package->package.elements[1]);
@@ -316,9 +299,9 @@ acpi_bus_extract_wakeup_device_power_package (
316 return AE_NO_MEMORY; 299 return AE_NO_MEMORY;
317 } 300 }
318 device->wakeup.resources.count = package->package.count - 2; 301 device->wakeup.resources.count = package->package.count - 2;
319 for (i=0; i < device->wakeup.resources.count; i++) { 302 for (i = 0; i < device->wakeup.resources.count; i++) {
320 element = &(package->package.elements[i + 2]); 303 element = &(package->package.elements[i + 2]);
321 if (element->type != ACPI_TYPE_ANY ) { 304 if (element->type != ACPI_TYPE_ANY) {
322 return AE_BAD_DATA; 305 return AE_BAD_DATA;
323 } 306 }
324 307
@@ -328,13 +311,11 @@ acpi_bus_extract_wakeup_device_power_package (
328 return AE_OK; 311 return AE_OK;
329} 312}
330 313
331static int 314static int acpi_bus_get_wakeup_device_flags(struct acpi_device *device)
332acpi_bus_get_wakeup_device_flags (
333 struct acpi_device *device)
334{ 315{
335 acpi_status status = 0; 316 acpi_status status = 0;
336 struct acpi_buffer buffer = {ACPI_ALLOCATE_BUFFER, NULL}; 317 struct acpi_buffer buffer = { ACPI_ALLOCATE_BUFFER, NULL };
337 union acpi_object *package = NULL; 318 union acpi_object *package = NULL;
338 319
339 ACPI_FUNCTION_TRACE("acpi_bus_get_wakeup_flags"); 320 ACPI_FUNCTION_TRACE("acpi_bus_get_wakeup_flags");
340 321
@@ -345,21 +326,22 @@ acpi_bus_get_wakeup_device_flags (
345 goto end; 326 goto end;
346 } 327 }
347 328
348 package = (union acpi_object *) buffer.pointer; 329 package = (union acpi_object *)buffer.pointer;
349 status = acpi_bus_extract_wakeup_device_power_package(device, package); 330 status = acpi_bus_extract_wakeup_device_power_package(device, package);
350 if (ACPI_FAILURE(status)) { 331 if (ACPI_FAILURE(status)) {
351 ACPI_DEBUG_PRINT((ACPI_DB_ERROR, "Error extracting _PRW package\n")); 332 ACPI_DEBUG_PRINT((ACPI_DB_ERROR,
333 "Error extracting _PRW package\n"));
352 goto end; 334 goto end;
353 } 335 }
354 336
355 acpi_os_free(buffer.pointer); 337 acpi_os_free(buffer.pointer);
356 338
357 device->wakeup.flags.valid = 1; 339 device->wakeup.flags.valid = 1;
358 /* Power button, Lid switch always enable wakeup*/ 340 /* Power button, Lid switch always enable wakeup */
359 if (!acpi_match_ids(device, "PNP0C0D,PNP0C0C,PNP0C0E")) 341 if (!acpi_match_ids(device, "PNP0C0D,PNP0C0C,PNP0C0E"))
360 device->wakeup.flags.run_wake = 1; 342 device->wakeup.flags.run_wake = 1;
361 343
362end: 344 end:
363 if (ACPI_FAILURE(status)) 345 if (ACPI_FAILURE(status))
364 device->flags.wake_capable = 0; 346 device->flags.wake_capable = 0;
365 return_VALUE(0); 347 return_VALUE(0);
@@ -368,8 +350,8 @@ end:
368/* -------------------------------------------------------------------------- 350/* --------------------------------------------------------------------------
369 ACPI hotplug sysfs device file support 351 ACPI hotplug sysfs device file support
370 -------------------------------------------------------------------------- */ 352 -------------------------------------------------------------------------- */
371static ssize_t acpi_eject_store(struct acpi_device *device, 353static ssize_t acpi_eject_store(struct acpi_device *device,
372 const char *buf, size_t count); 354 const char *buf, size_t count);
373 355
374#define ACPI_DEVICE_ATTR(_name,_mode,_show,_store) \ 356#define ACPI_DEVICE_ATTR(_name,_mode,_show,_store) \
375static struct acpi_device_attribute acpi_device_attr_##_name = \ 357static struct acpi_device_attribute acpi_device_attr_##_name = \
@@ -383,12 +365,11 @@ ACPI_DEVICE_ATTR(eject, 0200, NULL, acpi_eject_store);
383 * @func: function pointer to create or destroy the device file 365 * @func: function pointer to create or destroy the device file
384 */ 366 */
385static void 367static void
386setup_sys_fs_device_files ( 368setup_sys_fs_device_files(struct acpi_device *dev,
387 struct acpi_device *dev, 369 acpi_device_sysfs_files * func)
388 acpi_device_sysfs_files *func)
389{ 370{
390 acpi_status status; 371 acpi_status status;
391 acpi_handle temp = NULL; 372 acpi_handle temp = NULL;
392 373
393 /* 374 /*
394 * If device has _EJ0, 'eject' file is created that is used to trigger 375 * If device has _EJ0, 'eject' file is created that is used to trigger
@@ -396,11 +377,10 @@ setup_sys_fs_device_files (
396 */ 377 */
397 status = acpi_get_handle(dev->handle, "_EJ0", &temp); 378 status = acpi_get_handle(dev->handle, "_EJ0", &temp);
398 if (ACPI_SUCCESS(status)) 379 if (ACPI_SUCCESS(status))
399 (*(func))(&dev->kobj,&acpi_device_attr_eject.attr); 380 (*(func)) (&dev->kobj, &acpi_device_attr_eject.attr);
400} 381}
401 382
402static int 383static int acpi_eject_operation(acpi_handle handle, int lockable)
403acpi_eject_operation(acpi_handle handle, int lockable)
404{ 384{
405 struct acpi_object_list arg_list; 385 struct acpi_object_list arg_list;
406 union acpi_object arg; 386 union acpi_object arg;
@@ -429,27 +409,25 @@ acpi_eject_operation(acpi_handle handle, int lockable)
429 409
430 status = acpi_evaluate_object(handle, "_EJ0", &arg_list, NULL); 410 status = acpi_evaluate_object(handle, "_EJ0", &arg_list, NULL);
431 if (ACPI_FAILURE(status)) { 411 if (ACPI_FAILURE(status)) {
432 return(-ENODEV); 412 return (-ENODEV);
433 } 413 }
434 414
435 return(0); 415 return (0);
436} 416}
437 417
438
439static ssize_t 418static ssize_t
440acpi_eject_store(struct acpi_device *device, const char *buf, size_t count) 419acpi_eject_store(struct acpi_device *device, const char *buf, size_t count)
441{ 420{
442 int result; 421 int result;
443 int ret = count; 422 int ret = count;
444 int islockable; 423 int islockable;
445 acpi_status status; 424 acpi_status status;
446 acpi_handle handle; 425 acpi_handle handle;
447 acpi_object_type type = 0; 426 acpi_object_type type = 0;
448 427
449 if ((!count) || (buf[0] != '1')) { 428 if ((!count) || (buf[0] != '1')) {
450 return -EINVAL; 429 return -EINVAL;
451 } 430 }
452
453#ifndef FORCE_EJECT 431#ifndef FORCE_EJECT
454 if (device->driver == NULL) { 432 if (device->driver == NULL) {
455 ret = -ENODEV; 433 ret = -ENODEV;
@@ -457,7 +435,7 @@ acpi_eject_store(struct acpi_device *device, const char *buf, size_t count)
457 } 435 }
458#endif 436#endif
459 status = acpi_get_type(device->handle, &type); 437 status = acpi_get_type(device->handle, &type);
460 if (ACPI_FAILURE(status) || (!device->flags.ejectable) ) { 438 if (ACPI_FAILURE(status) || (!device->flags.ejectable)) {
461 ret = -ENODEV; 439 ret = -ENODEV;
462 goto err; 440 goto err;
463 } 441 }
@@ -476,18 +454,15 @@ acpi_eject_store(struct acpi_device *device, const char *buf, size_t count)
476 if (result) { 454 if (result) {
477 ret = -EBUSY; 455 ret = -EBUSY;
478 } 456 }
479err: 457 err:
480 return ret; 458 return ret;
481} 459}
482 460
483
484/* -------------------------------------------------------------------------- 461/* --------------------------------------------------------------------------
485 Performance Management 462 Performance Management
486 -------------------------------------------------------------------------- */ 463 -------------------------------------------------------------------------- */
487 464
488static int 465static int acpi_bus_get_perf_flags(struct acpi_device *device)
489acpi_bus_get_perf_flags (
490 struct acpi_device *device)
491{ 466{
492 device->performance.state = ACPI_STATE_UNKNOWN; 467 device->performance.state = ACPI_STATE_UNKNOWN;
493 return 0; 468 return 0;
@@ -500,7 +475,6 @@ acpi_bus_get_perf_flags (
500static LIST_HEAD(acpi_bus_drivers); 475static LIST_HEAD(acpi_bus_drivers);
501static DECLARE_MUTEX(acpi_bus_drivers_lock); 476static DECLARE_MUTEX(acpi_bus_drivers_lock);
502 477
503
504/** 478/**
505 * acpi_bus_match 479 * acpi_bus_match
506 * -------------- 480 * --------------
@@ -508,16 +482,13 @@ static DECLARE_MUTEX(acpi_bus_drivers_lock);
508 * matches the specified driver's criteria. 482 * matches the specified driver's criteria.
509 */ 483 */
510static int 484static int
511acpi_bus_match ( 485acpi_bus_match(struct acpi_device *device, struct acpi_driver *driver)
512 struct acpi_device *device,
513 struct acpi_driver *driver)
514{ 486{
515 if (driver && driver->ops.match) 487 if (driver && driver->ops.match)
516 return driver->ops.match(device, driver); 488 return driver->ops.match(device, driver);
517 return acpi_match_ids(device, driver->ids); 489 return acpi_match_ids(device, driver->ids);
518} 490}
519 491
520
521/** 492/**
522 * acpi_bus_driver_init 493 * acpi_bus_driver_init
523 * -------------------- 494 * --------------------
@@ -525,11 +496,9 @@ acpi_bus_match (
525 * driver is bound to a device. Invokes the driver's add() and start() ops. 496 * driver is bound to a device. Invokes the driver's add() and start() ops.
526 */ 497 */
527static int 498static int
528acpi_bus_driver_init ( 499acpi_bus_driver_init(struct acpi_device *device, struct acpi_driver *driver)
529 struct acpi_device *device,
530 struct acpi_driver *driver)
531{ 500{
532 int result = 0; 501 int result = 0;
533 502
534 ACPI_FUNCTION_TRACE("acpi_bus_driver_init"); 503 ACPI_FUNCTION_TRACE("acpi_bus_driver_init");
535 504
@@ -553,13 +522,12 @@ acpi_bus_driver_init (
553 * upon possible configuration and currently allocated resources. 522 * upon possible configuration and currently allocated resources.
554 */ 523 */
555 524
556 ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Driver successfully bound to device\n")); 525 ACPI_DEBUG_PRINT((ACPI_DB_INFO,
526 "Driver successfully bound to device\n"));
557 return_VALUE(0); 527 return_VALUE(0);
558} 528}
559 529
560int 530int acpi_start_single_object(struct acpi_device *device)
561acpi_start_single_object (
562 struct acpi_device *device)
563{ 531{
564 int result = 0; 532 int result = 0;
565 struct acpi_driver *driver; 533 struct acpi_driver *driver;
@@ -578,16 +546,17 @@ acpi_start_single_object (
578 return_VALUE(result); 546 return_VALUE(result);
579} 547}
580 548
581static int acpi_driver_attach(struct acpi_driver * drv) 549static int acpi_driver_attach(struct acpi_driver *drv)
582{ 550{
583 struct list_head * node, * next; 551 struct list_head *node, *next;
584 int count = 0; 552 int count = 0;
585 553
586 ACPI_FUNCTION_TRACE("acpi_driver_attach"); 554 ACPI_FUNCTION_TRACE("acpi_driver_attach");
587 555
588 spin_lock(&acpi_device_lock); 556 spin_lock(&acpi_device_lock);
589 list_for_each_safe(node, next, &acpi_device_list) { 557 list_for_each_safe(node, next, &acpi_device_list) {
590 struct acpi_device * dev = container_of(node, struct acpi_device, g_list); 558 struct acpi_device *dev =
559 container_of(node, struct acpi_device, g_list);
591 560
592 if (dev->driver || !dev->status.present) 561 if (dev->driver || !dev->status.present)
593 continue; 562 continue;
@@ -598,7 +567,8 @@ static int acpi_driver_attach(struct acpi_driver * drv)
598 acpi_start_single_object(dev); 567 acpi_start_single_object(dev);
599 atomic_inc(&drv->references); 568 atomic_inc(&drv->references);
600 count++; 569 count++;
601 ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Found driver [%s] for device [%s]\n", 570 ACPI_DEBUG_PRINT((ACPI_DB_INFO,
571 "Found driver [%s] for device [%s]\n",
602 drv->name, dev->pnp.bus_id)); 572 drv->name, dev->pnp.bus_id));
603 } 573 }
604 } 574 }
@@ -608,20 +578,21 @@ static int acpi_driver_attach(struct acpi_driver * drv)
608 return_VALUE(count); 578 return_VALUE(count);
609} 579}
610 580
611static int acpi_driver_detach(struct acpi_driver * drv) 581static int acpi_driver_detach(struct acpi_driver *drv)
612{ 582{
613 struct list_head * node, * next; 583 struct list_head *node, *next;
614 584
615 ACPI_FUNCTION_TRACE("acpi_driver_detach"); 585 ACPI_FUNCTION_TRACE("acpi_driver_detach");
616 586
617 spin_lock(&acpi_device_lock); 587 spin_lock(&acpi_device_lock);
618 list_for_each_safe(node,next,&acpi_device_list) { 588 list_for_each_safe(node, next, &acpi_device_list) {
619 struct acpi_device * dev = container_of(node,struct acpi_device,g_list); 589 struct acpi_device *dev =
590 container_of(node, struct acpi_device, g_list);
620 591
621 if (dev->driver == drv) { 592 if (dev->driver == drv) {
622 spin_unlock(&acpi_device_lock); 593 spin_unlock(&acpi_device_lock);
623 if (drv->ops.remove) 594 if (drv->ops.remove)
624 drv->ops.remove(dev,ACPI_BUS_REMOVAL_NORMAL); 595 drv->ops.remove(dev, ACPI_BUS_REMOVAL_NORMAL);
625 spin_lock(&acpi_device_lock); 596 spin_lock(&acpi_device_lock);
626 dev->driver = NULL; 597 dev->driver = NULL;
627 dev->driver_data = NULL; 598 dev->driver_data = NULL;
@@ -640,9 +611,7 @@ static int acpi_driver_detach(struct acpi_driver * drv)
640 * number of devices that were claimed by the driver, or a negative 611 * number of devices that were claimed by the driver, or a negative
641 * error status for failure. 612 * error status for failure.
642 */ 613 */
643int 614int acpi_bus_register_driver(struct acpi_driver *driver)
644acpi_bus_register_driver (
645 struct acpi_driver *driver)
646{ 615{
647 int count; 616 int count;
648 617
@@ -661,8 +630,8 @@ acpi_bus_register_driver (
661 630
662 return_VALUE(count); 631 return_VALUE(count);
663} 632}
664EXPORT_SYMBOL(acpi_bus_register_driver);
665 633
634EXPORT_SYMBOL(acpi_bus_register_driver);
666 635
667/** 636/**
668 * acpi_bus_unregister_driver 637 * acpi_bus_unregister_driver
@@ -670,9 +639,7 @@ EXPORT_SYMBOL(acpi_bus_register_driver);
670 * Unregisters a driver with the ACPI bus. Searches the namespace for all 639 * Unregisters a driver with the ACPI bus. Searches the namespace for all
671 * devices that match the driver's criteria and unbinds. 640 * devices that match the driver's criteria and unbinds.
672 */ 641 */
673int 642int acpi_bus_unregister_driver(struct acpi_driver *driver)
674acpi_bus_unregister_driver (
675 struct acpi_driver *driver)
676{ 643{
677 int error = 0; 644 int error = 0;
678 645
@@ -685,11 +652,12 @@ acpi_bus_unregister_driver (
685 spin_lock(&acpi_device_lock); 652 spin_lock(&acpi_device_lock);
686 list_del_init(&driver->node); 653 list_del_init(&driver->node);
687 spin_unlock(&acpi_device_lock); 654 spin_unlock(&acpi_device_lock);
688 } 655 }
689 } else 656 } else
690 error = -EINVAL; 657 error = -EINVAL;
691 return_VALUE(error); 658 return_VALUE(error);
692} 659}
660
693EXPORT_SYMBOL(acpi_bus_unregister_driver); 661EXPORT_SYMBOL(acpi_bus_unregister_driver);
694 662
695/** 663/**
@@ -698,18 +666,17 @@ EXPORT_SYMBOL(acpi_bus_unregister_driver);
698 * Parses the list of registered drivers looking for a driver applicable for 666 * Parses the list of registered drivers looking for a driver applicable for
699 * the specified device. 667 * the specified device.
700 */ 668 */
701static int 669static int acpi_bus_find_driver(struct acpi_device *device)
702acpi_bus_find_driver (
703 struct acpi_device *device)
704{ 670{
705 int result = 0; 671 int result = 0;
706 struct list_head * node, *next; 672 struct list_head *node, *next;
707 673
708 ACPI_FUNCTION_TRACE("acpi_bus_find_driver"); 674 ACPI_FUNCTION_TRACE("acpi_bus_find_driver");
709 675
710 spin_lock(&acpi_device_lock); 676 spin_lock(&acpi_device_lock);
711 list_for_each_safe(node,next,&acpi_bus_drivers) { 677 list_for_each_safe(node, next, &acpi_bus_drivers) {
712 struct acpi_driver * driver = container_of(node,struct acpi_driver,node); 678 struct acpi_driver *driver =
679 container_of(node, struct acpi_driver, node);
713 680
714 atomic_inc(&driver->references); 681 atomic_inc(&driver->references);
715 spin_unlock(&acpi_device_lock); 682 spin_unlock(&acpi_device_lock);
@@ -723,21 +690,18 @@ acpi_bus_find_driver (
723 } 690 }
724 spin_unlock(&acpi_device_lock); 691 spin_unlock(&acpi_device_lock);
725 692
726 Done: 693 Done:
727 return_VALUE(result); 694 return_VALUE(result);
728} 695}
729 696
730
731/* -------------------------------------------------------------------------- 697/* --------------------------------------------------------------------------
732 Device Enumeration 698 Device Enumeration
733 -------------------------------------------------------------------------- */ 699 -------------------------------------------------------------------------- */
734 700
735static int 701static int acpi_bus_get_flags(struct acpi_device *device)
736acpi_bus_get_flags (
737 struct acpi_device *device)
738{ 702{
739 acpi_status status = AE_OK; 703 acpi_status status = AE_OK;
740 acpi_handle temp = NULL; 704 acpi_handle temp = NULL;
741 705
742 ACPI_FUNCTION_TRACE("acpi_bus_get_flags"); 706 ACPI_FUNCTION_TRACE("acpi_bus_get_flags");
743 707
@@ -788,11 +752,12 @@ acpi_bus_get_flags (
788 return_VALUE(0); 752 return_VALUE(0);
789} 753}
790 754
791static void acpi_device_get_busid(struct acpi_device * device, acpi_handle handle, int type) 755static void acpi_device_get_busid(struct acpi_device *device,
756 acpi_handle handle, int type)
792{ 757{
793 char bus_id[5] = {'?',0}; 758 char bus_id[5] = { '?', 0 };
794 struct acpi_buffer buffer = {sizeof(bus_id), bus_id}; 759 struct acpi_buffer buffer = { sizeof(bus_id), bus_id };
795 int i = 0; 760 int i = 0;
796 761
797 /* 762 /*
798 * Bus ID 763 * Bus ID
@@ -824,21 +789,22 @@ static void acpi_device_get_busid(struct acpi_device * device, acpi_handle handl
824 } 789 }
825} 790}
826 791
827static void acpi_device_set_id(struct acpi_device * device, struct acpi_device * parent, 792static void acpi_device_set_id(struct acpi_device *device,
828 acpi_handle handle, int type) 793 struct acpi_device *parent, acpi_handle handle,
794 int type)
829{ 795{
830 struct acpi_device_info *info; 796 struct acpi_device_info *info;
831 struct acpi_buffer buffer = {ACPI_ALLOCATE_BUFFER, NULL}; 797 struct acpi_buffer buffer = { ACPI_ALLOCATE_BUFFER, NULL };
832 char *hid = NULL; 798 char *hid = NULL;
833 char *uid = NULL; 799 char *uid = NULL;
834 struct acpi_compatible_id_list *cid_list = NULL; 800 struct acpi_compatible_id_list *cid_list = NULL;
835 acpi_status status; 801 acpi_status status;
836 802
837 switch (type) { 803 switch (type) {
838 case ACPI_BUS_TYPE_DEVICE: 804 case ACPI_BUS_TYPE_DEVICE:
839 status = acpi_get_object_info(handle, &buffer); 805 status = acpi_get_object_info(handle, &buffer);
840 if (ACPI_FAILURE(status)) { 806 if (ACPI_FAILURE(status)) {
841 printk("%s: Error reading device info\n",__FUNCTION__); 807 printk("%s: Error reading device info\n", __FUNCTION__);
842 return; 808 return;
843 } 809 }
844 810
@@ -904,7 +870,7 @@ static void acpi_device_set_id(struct acpi_device * device, struct acpi_device *
904 acpi_os_free(buffer.pointer); 870 acpi_os_free(buffer.pointer);
905} 871}
906 872
907static int acpi_device_set_context(struct acpi_device * device, int type) 873static int acpi_device_set_context(struct acpi_device *device, int type)
908{ 874{
909 acpi_status status = AE_OK; 875 acpi_status status = AE_OK;
910 int result = 0; 876 int result = 0;
@@ -916,10 +882,10 @@ static int acpi_device_set_context(struct acpi_device * device, int type)
916 * to be careful with fixed-feature devices as they all attach to the 882 * to be careful with fixed-feature devices as they all attach to the
917 * root object. 883 * root object.
918 */ 884 */
919 if (type != ACPI_BUS_TYPE_POWER_BUTTON && 885 if (type != ACPI_BUS_TYPE_POWER_BUTTON &&
920 type != ACPI_BUS_TYPE_SLEEP_BUTTON) { 886 type != ACPI_BUS_TYPE_SLEEP_BUTTON) {
921 status = acpi_attach_data(device->handle, 887 status = acpi_attach_data(device->handle,
922 acpi_bus_data_handler, device); 888 acpi_bus_data_handler, device);
923 889
924 if (ACPI_FAILURE(status)) { 890 if (ACPI_FAILURE(status)) {
925 printk("Error attaching device data\n"); 891 printk("Error attaching device data\n");
@@ -929,12 +895,13 @@ static int acpi_device_set_context(struct acpi_device * device, int type)
929 return result; 895 return result;
930} 896}
931 897
932static void acpi_device_get_debug_info(struct acpi_device * device, acpi_handle handle, int type) 898static void acpi_device_get_debug_info(struct acpi_device *device,
899 acpi_handle handle, int type)
933{ 900{
934#ifdef CONFIG_ACPI_DEBUG_OUTPUT 901#ifdef CONFIG_ACPI_DEBUG_OUTPUT
935 char *type_string = NULL; 902 char *type_string = NULL;
936 char name[80] = {'?','\0'}; 903 char name[80] = { '?', '\0' };
937 struct acpi_buffer buffer = {sizeof(name), name}; 904 struct acpi_buffer buffer = { sizeof(name), name };
938 905
939 switch (type) { 906 switch (type) {
940 case ACPI_BUS_TYPE_DEVICE: 907 case ACPI_BUS_TYPE_DEVICE:
@@ -968,18 +935,14 @@ static void acpi_device_get_debug_info(struct acpi_device * device, acpi_handle
968 } 935 }
969 936
970 printk(KERN_DEBUG "Found %s %s [%p]\n", type_string, name, handle); 937 printk(KERN_DEBUG "Found %s %s [%p]\n", type_string, name, handle);
971#endif /*CONFIG_ACPI_DEBUG_OUTPUT*/ 938#endif /*CONFIG_ACPI_DEBUG_OUTPUT */
972} 939}
973 940
974 941static int acpi_bus_remove(struct acpi_device *dev, int rmdevice)
975static int
976acpi_bus_remove (
977 struct acpi_device *dev,
978 int rmdevice)
979{ 942{
980 int result = 0; 943 int result = 0;
981 struct acpi_driver *driver; 944 struct acpi_driver *driver;
982 945
983 ACPI_FUNCTION_TRACE("acpi_bus_remove"); 946 ACPI_FUNCTION_TRACE("acpi_bus_remove");
984 947
985 if (!dev) 948 if (!dev)
@@ -1012,22 +975,18 @@ acpi_bus_remove (
1012 if ((dev->parent) && (dev->parent->ops.unbind)) 975 if ((dev->parent) && (dev->parent->ops.unbind))
1013 dev->parent->ops.unbind(dev); 976 dev->parent->ops.unbind(dev);
1014 } 977 }
1015 978
1016 acpi_device_unregister(dev, ACPI_BUS_REMOVAL_EJECT); 979 acpi_device_unregister(dev, ACPI_BUS_REMOVAL_EJECT);
1017 980
1018 return_VALUE(0); 981 return_VALUE(0);
1019} 982}
1020 983
1021
1022static int 984static int
1023acpi_add_single_object ( 985acpi_add_single_object(struct acpi_device **child,
1024 struct acpi_device **child, 986 struct acpi_device *parent, acpi_handle handle, int type)
1025 struct acpi_device *parent,
1026 acpi_handle handle,
1027 int type)
1028{ 987{
1029 int result = 0; 988 int result = 0;
1030 struct acpi_device *device = NULL; 989 struct acpi_device *device = NULL;
1031 990
1032 ACPI_FUNCTION_TRACE("acpi_add_single_object"); 991 ACPI_FUNCTION_TRACE("acpi_add_single_object");
1033 992
@@ -1044,7 +1003,7 @@ acpi_add_single_object (
1044 device->handle = handle; 1003 device->handle = handle;
1045 device->parent = parent; 1004 device->parent = parent;
1046 1005
1047 acpi_device_get_busid(device,handle,type); 1006 acpi_device_get_busid(device, handle, type);
1048 1007
1049 /* 1008 /*
1050 * Flags 1009 * Flags
@@ -1092,7 +1051,7 @@ acpi_add_single_object (
1092 * Hardware ID, Unique ID, & Bus Address 1051 * Hardware ID, Unique ID, & Bus Address
1093 * ------------------------------------- 1052 * -------------------------------------
1094 */ 1053 */
1095 acpi_device_set_id(device,parent,handle,type); 1054 acpi_device_set_id(device, parent, handle, type);
1096 1055
1097 /* 1056 /*
1098 * Power Management 1057 * Power Management
@@ -1104,7 +1063,7 @@ acpi_add_single_object (
1104 goto end; 1063 goto end;
1105 } 1064 }
1106 1065
1107 /* 1066 /*
1108 * Wakeup device management 1067 * Wakeup device management
1109 *----------------------- 1068 *-----------------------
1110 */ 1069 */
@@ -1124,12 +1083,12 @@ acpi_add_single_object (
1124 goto end; 1083 goto end;
1125 } 1084 }
1126 1085
1127 if ((result = acpi_device_set_context(device,type))) 1086 if ((result = acpi_device_set_context(device, type)))
1128 goto end; 1087 goto end;
1129 1088
1130 acpi_device_get_debug_info(device,handle,type); 1089 acpi_device_get_debug_info(device, handle, type);
1131 1090
1132 acpi_device_register(device,parent); 1091 acpi_device_register(device, parent);
1133 1092
1134 /* 1093 /*
1135 * Bind _ADR-Based Devices 1094 * Bind _ADR-Based Devices
@@ -1154,7 +1113,7 @@ acpi_add_single_object (
1154 */ 1113 */
1155 result = acpi_bus_find_driver(device); 1114 result = acpi_bus_find_driver(device);
1156 1115
1157end: 1116 end:
1158 if (!result) 1117 if (!result)
1159 *child = device; 1118 *child = device;
1160 else { 1119 else {
@@ -1166,17 +1125,15 @@ end:
1166 return_VALUE(result); 1125 return_VALUE(result);
1167} 1126}
1168 1127
1169 1128static int acpi_bus_scan(struct acpi_device *start, struct acpi_bus_ops *ops)
1170static int acpi_bus_scan (struct acpi_device *start,
1171 struct acpi_bus_ops *ops)
1172{ 1129{
1173 acpi_status status = AE_OK; 1130 acpi_status status = AE_OK;
1174 struct acpi_device *parent = NULL; 1131 struct acpi_device *parent = NULL;
1175 struct acpi_device *child = NULL; 1132 struct acpi_device *child = NULL;
1176 acpi_handle phandle = NULL; 1133 acpi_handle phandle = NULL;
1177 acpi_handle chandle = NULL; 1134 acpi_handle chandle = NULL;
1178 acpi_object_type type = 0; 1135 acpi_object_type type = 0;
1179 u32 level = 1; 1136 u32 level = 1;
1180 1137
1181 ACPI_FUNCTION_TRACE("acpi_bus_scan"); 1138 ACPI_FUNCTION_TRACE("acpi_bus_scan");
1182 1139
@@ -1185,7 +1142,7 @@ static int acpi_bus_scan (struct acpi_device *start,
1185 1142
1186 parent = start; 1143 parent = start;
1187 phandle = start->handle; 1144 phandle = start->handle;
1188 1145
1189 /* 1146 /*
1190 * Parse through the ACPI namespace, identify all 'devices', and 1147 * Parse through the ACPI namespace, identify all 'devices', and
1191 * create a new 'struct acpi_device' for each. 1148 * create a new 'struct acpi_device' for each.
@@ -1193,7 +1150,7 @@ static int acpi_bus_scan (struct acpi_device *start,
1193 while ((level > 0) && parent) { 1150 while ((level > 0) && parent) {
1194 1151
1195 status = acpi_get_next_object(ACPI_TYPE_ANY, phandle, 1152 status = acpi_get_next_object(ACPI_TYPE_ANY, phandle,
1196 chandle, &chandle); 1153 chandle, &chandle);
1197 1154
1198 /* 1155 /*
1199 * If this scope is exhausted then move our way back up. 1156 * If this scope is exhausted then move our way back up.
@@ -1243,12 +1200,12 @@ static int acpi_bus_scan (struct acpi_device *start,
1243 1200
1244 if (ops->acpi_op_add) 1201 if (ops->acpi_op_add)
1245 status = acpi_add_single_object(&child, parent, 1202 status = acpi_add_single_object(&child, parent,
1246 chandle, type); 1203 chandle, type);
1247 else 1204 else
1248 status = acpi_bus_get_device(chandle, &child); 1205 status = acpi_bus_get_device(chandle, &child);
1249 1206
1250 if (ACPI_FAILURE(status)) 1207 if (ACPI_FAILURE(status))
1251 continue; 1208 continue;
1252 1209
1253 if (ops->acpi_op_start) { 1210 if (ops->acpi_op_start) {
1254 status = acpi_start_single_object(child); 1211 status = acpi_start_single_object(child);
@@ -1264,7 +1221,7 @@ static int acpi_bus_scan (struct acpi_device *start,
1264 * which will be enumerated when the parent is inserted). 1221 * which will be enumerated when the parent is inserted).
1265 * 1222 *
1266 * TBD: Need notifications and other detection mechanisms 1223 * TBD: Need notifications and other detection mechanisms
1267 * in place before we can fully implement this. 1224 * in place before we can fully implement this.
1268 */ 1225 */
1269 if (child->status.present) { 1226 if (child->status.present) {
1270 status = acpi_get_next_object(ACPI_TYPE_ANY, chandle, 1227 status = acpi_get_next_object(ACPI_TYPE_ANY, chandle,
@@ -1282,11 +1239,8 @@ static int acpi_bus_scan (struct acpi_device *start,
1282} 1239}
1283 1240
1284int 1241int
1285acpi_bus_add ( 1242acpi_bus_add(struct acpi_device **child,
1286 struct acpi_device **child, 1243 struct acpi_device *parent, acpi_handle handle, int type)
1287 struct acpi_device *parent,
1288 acpi_handle handle,
1289 int type)
1290{ 1244{
1291 int result; 1245 int result;
1292 struct acpi_bus_ops ops; 1246 struct acpi_bus_ops ops;
@@ -1301,11 +1255,10 @@ acpi_bus_add (
1301 } 1255 }
1302 return_VALUE(result); 1256 return_VALUE(result);
1303} 1257}
1258
1304EXPORT_SYMBOL(acpi_bus_add); 1259EXPORT_SYMBOL(acpi_bus_add);
1305 1260
1306int 1261int acpi_bus_start(struct acpi_device *device)
1307acpi_bus_start (
1308 struct acpi_device *device)
1309{ 1262{
1310 int result; 1263 int result;
1311 struct acpi_bus_ops ops; 1264 struct acpi_bus_ops ops;
@@ -1323,26 +1276,25 @@ acpi_bus_start (
1323 } 1276 }
1324 return_VALUE(result); 1277 return_VALUE(result);
1325} 1278}
1279
1326EXPORT_SYMBOL(acpi_bus_start); 1280EXPORT_SYMBOL(acpi_bus_start);
1327 1281
1328static int 1282static int acpi_bus_trim(struct acpi_device *start, int rmdevice)
1329acpi_bus_trim(struct acpi_device *start,
1330 int rmdevice)
1331{ 1283{
1332 acpi_status status; 1284 acpi_status status;
1333 struct acpi_device *parent, *child; 1285 struct acpi_device *parent, *child;
1334 acpi_handle phandle, chandle; 1286 acpi_handle phandle, chandle;
1335 acpi_object_type type; 1287 acpi_object_type type;
1336 u32 level = 1; 1288 u32 level = 1;
1337 int err = 0; 1289 int err = 0;
1338 1290
1339 parent = start; 1291 parent = start;
1340 phandle = start->handle; 1292 phandle = start->handle;
1341 child = chandle = NULL; 1293 child = chandle = NULL;
1342 1294
1343 while ((level > 0) && parent && (!err)) { 1295 while ((level > 0) && parent && (!err)) {
1344 status = acpi_get_next_object(ACPI_TYPE_ANY, phandle, 1296 status = acpi_get_next_object(ACPI_TYPE_ANY, phandle,
1345 chandle, &chandle); 1297 chandle, &chandle);
1346 1298
1347 /* 1299 /*
1348 * If this scope is exhausted then move our way back up. 1300 * If this scope is exhausted then move our way back up.
@@ -1381,12 +1333,10 @@ acpi_bus_trim(struct acpi_device *start,
1381 return err; 1333 return err;
1382} 1334}
1383 1335
1384static int 1336static int acpi_bus_scan_fixed(struct acpi_device *root)
1385acpi_bus_scan_fixed (
1386 struct acpi_device *root)
1387{ 1337{
1388 int result = 0; 1338 int result = 0;
1389 struct acpi_device *device = NULL; 1339 struct acpi_device *device = NULL;
1390 1340
1391 ACPI_FUNCTION_TRACE("acpi_bus_scan_fixed"); 1341 ACPI_FUNCTION_TRACE("acpi_bus_scan_fixed");
1392 1342
@@ -1398,14 +1348,16 @@ acpi_bus_scan_fixed (
1398 */ 1348 */
1399 if (acpi_fadt.pwr_button == 0) { 1349 if (acpi_fadt.pwr_button == 0) {
1400 result = acpi_add_single_object(&device, acpi_root, 1350 result = acpi_add_single_object(&device, acpi_root,
1401 NULL, ACPI_BUS_TYPE_POWER_BUTTON); 1351 NULL,
1352 ACPI_BUS_TYPE_POWER_BUTTON);
1402 if (!result) 1353 if (!result)
1403 result = acpi_start_single_object(device); 1354 result = acpi_start_single_object(device);
1404 } 1355 }
1405 1356
1406 if (acpi_fadt.sleep_button == 0) { 1357 if (acpi_fadt.sleep_button == 0) {
1407 result = acpi_add_single_object(&device, acpi_root, 1358 result = acpi_add_single_object(&device, acpi_root,
1408 NULL, ACPI_BUS_TYPE_SLEEP_BUTTON); 1359 NULL,
1360 ACPI_BUS_TYPE_SLEEP_BUTTON);
1409 if (!result) 1361 if (!result)
1410 result = acpi_start_single_object(device); 1362 result = acpi_start_single_object(device);
1411 } 1363 }
@@ -1413,7 +1365,6 @@ acpi_bus_scan_fixed (
1413 return_VALUE(result); 1365 return_VALUE(result);
1414} 1366}
1415 1367
1416
1417static int __init acpi_scan_init(void) 1368static int __init acpi_scan_init(void)
1418{ 1369{
1419 int result; 1370 int result;
@@ -1430,7 +1381,7 @@ static int __init acpi_scan_init(void)
1430 * Create the root device in the bus's device tree 1381 * Create the root device in the bus's device tree
1431 */ 1382 */
1432 result = acpi_add_single_object(&acpi_root, NULL, ACPI_ROOT_OBJECT, 1383 result = acpi_add_single_object(&acpi_root, NULL, ACPI_ROOT_OBJECT,
1433 ACPI_BUS_TYPE_SYSTEM); 1384 ACPI_BUS_TYPE_SYSTEM);
1434 if (result) 1385 if (result)
1435 goto Done; 1386 goto Done;
1436 1387
@@ -1450,7 +1401,7 @@ static int __init acpi_scan_init(void)
1450 if (result) 1401 if (result)
1451 acpi_device_unregister(acpi_root, ACPI_BUS_REMOVAL_NORMAL); 1402 acpi_device_unregister(acpi_root, ACPI_BUS_REMOVAL_NORMAL);
1452 1403
1453 Done: 1404 Done:
1454 return_VALUE(result); 1405 return_VALUE(result);
1455} 1406}
1456 1407