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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/pci_link.c
parentc65ade4dc8b486e8c8b9b0a6399789a5428e2039 (diff)
[ACPI] Lindent all ACPI files
Signed-off-by: Len Brown <len.brown@intel.com>
Diffstat (limited to 'drivers/acpi/pci_link.c')
-rw-r--r--drivers/acpi/pci_link.c477
1 files changed, 238 insertions, 239 deletions
diff --git a/drivers/acpi/pci_link.c b/drivers/acpi/pci_link.c
index e8334ce84d84..82292b77e5c6 100644
--- a/drivers/acpi/pci_link.c
+++ b/drivers/acpi/pci_link.c
@@ -42,30 +42,26 @@
42#include <acpi/acpi_bus.h> 42#include <acpi/acpi_bus.h>
43#include <acpi/acpi_drivers.h> 43#include <acpi/acpi_drivers.h>
44 44
45
46#define _COMPONENT ACPI_PCI_COMPONENT 45#define _COMPONENT ACPI_PCI_COMPONENT
47ACPI_MODULE_NAME ("pci_link") 46ACPI_MODULE_NAME("pci_link")
48
49#define ACPI_PCI_LINK_CLASS "pci_irq_routing" 47#define ACPI_PCI_LINK_CLASS "pci_irq_routing"
50#define ACPI_PCI_LINK_HID "PNP0C0F" 48#define ACPI_PCI_LINK_HID "PNP0C0F"
51#define ACPI_PCI_LINK_DRIVER_NAME "ACPI PCI Interrupt Link Driver" 49#define ACPI_PCI_LINK_DRIVER_NAME "ACPI PCI Interrupt Link Driver"
52#define ACPI_PCI_LINK_DEVICE_NAME "PCI Interrupt Link" 50#define ACPI_PCI_LINK_DEVICE_NAME "PCI Interrupt Link"
53#define ACPI_PCI_LINK_FILE_INFO "info" 51#define ACPI_PCI_LINK_FILE_INFO "info"
54#define ACPI_PCI_LINK_FILE_STATUS "state" 52#define ACPI_PCI_LINK_FILE_STATUS "state"
55
56#define ACPI_PCI_LINK_MAX_POSSIBLE 16 53#define ACPI_PCI_LINK_MAX_POSSIBLE 16
57 54static int acpi_pci_link_add(struct acpi_device *device);
58static int acpi_pci_link_add (struct acpi_device *device); 55static int acpi_pci_link_remove(struct acpi_device *device, int type);
59static int acpi_pci_link_remove (struct acpi_device *device, int type);
60 56
61static struct acpi_driver acpi_pci_link_driver = { 57static struct acpi_driver acpi_pci_link_driver = {
62 .name = ACPI_PCI_LINK_DRIVER_NAME, 58 .name = ACPI_PCI_LINK_DRIVER_NAME,
63 .class = ACPI_PCI_LINK_CLASS, 59 .class = ACPI_PCI_LINK_CLASS,
64 .ids = ACPI_PCI_LINK_HID, 60 .ids = ACPI_PCI_LINK_HID,
65 .ops = { 61 .ops = {
66 .add = acpi_pci_link_add, 62 .add = acpi_pci_link_add,
67 .remove = acpi_pci_link_remove, 63 .remove = acpi_pci_link_remove,
68 }, 64 },
69}; 65};
70 66
71/* 67/*
@@ -73,31 +69,30 @@ static struct acpi_driver acpi_pci_link_driver = {
73 * later even the link is disable. Instead, we just repick the active irq 69 * later even the link is disable. Instead, we just repick the active irq
74 */ 70 */
75struct acpi_pci_link_irq { 71struct acpi_pci_link_irq {
76 u8 active; /* Current IRQ */ 72 u8 active; /* Current IRQ */
77 u8 edge_level; /* All IRQs */ 73 u8 edge_level; /* All IRQs */
78 u8 active_high_low; /* All IRQs */ 74 u8 active_high_low; /* All IRQs */
79 u8 resource_type; 75 u8 resource_type;
80 u8 possible_count; 76 u8 possible_count;
81 u8 possible[ACPI_PCI_LINK_MAX_POSSIBLE]; 77 u8 possible[ACPI_PCI_LINK_MAX_POSSIBLE];
82 u8 initialized:1; 78 u8 initialized:1;
83 u8 reserved:7; 79 u8 reserved:7;
84}; 80};
85 81
86struct acpi_pci_link { 82struct acpi_pci_link {
87 struct list_head node; 83 struct list_head node;
88 struct acpi_device *device; 84 struct acpi_device *device;
89 acpi_handle handle; 85 acpi_handle handle;
90 struct acpi_pci_link_irq irq; 86 struct acpi_pci_link_irq irq;
91 int refcnt; 87 int refcnt;
92}; 88};
93 89
94static struct { 90static struct {
95 int count; 91 int count;
96 struct list_head entries; 92 struct list_head entries;
97} acpi_link; 93} acpi_link;
98DECLARE_MUTEX(acpi_link_lock); 94DECLARE_MUTEX(acpi_link_lock);
99 95
100
101/* -------------------------------------------------------------------------- 96/* --------------------------------------------------------------------------
102 PCI Link Device Management 97 PCI Link Device Management
103 -------------------------------------------------------------------------- */ 98 -------------------------------------------------------------------------- */
@@ -106,12 +101,10 @@ DECLARE_MUTEX(acpi_link_lock);
106 * set context (link) possible list from resource list 101 * set context (link) possible list from resource list
107 */ 102 */
108static acpi_status 103static acpi_status
109acpi_pci_link_check_possible ( 104acpi_pci_link_check_possible(struct acpi_resource *resource, void *context)
110 struct acpi_resource *resource,
111 void *context)
112{ 105{
113 struct acpi_pci_link *link = (struct acpi_pci_link *) context; 106 struct acpi_pci_link *link = (struct acpi_pci_link *)context;
114 u32 i = 0; 107 u32 i = 0;
115 108
116 ACPI_FUNCTION_TRACE("acpi_pci_link_check_possible"); 109 ACPI_FUNCTION_TRACE("acpi_pci_link_check_possible");
117 110
@@ -119,61 +112,68 @@ acpi_pci_link_check_possible (
119 case ACPI_RSTYPE_START_DPF: 112 case ACPI_RSTYPE_START_DPF:
120 return_ACPI_STATUS(AE_OK); 113 return_ACPI_STATUS(AE_OK);
121 case ACPI_RSTYPE_IRQ: 114 case ACPI_RSTYPE_IRQ:
122 { 115 {
123 struct acpi_resource_irq *p = &resource->data.irq; 116 struct acpi_resource_irq *p = &resource->data.irq;
124 if (!p || !p->number_of_interrupts) { 117 if (!p || !p->number_of_interrupts) {
125 ACPI_DEBUG_PRINT((ACPI_DB_WARN, "Blank IRQ resource\n")); 118 ACPI_DEBUG_PRINT((ACPI_DB_WARN,
126 return_ACPI_STATUS(AE_OK); 119 "Blank IRQ resource\n"));
127 } 120 return_ACPI_STATUS(AE_OK);
128 for (i = 0; (i<p->number_of_interrupts && i<ACPI_PCI_LINK_MAX_POSSIBLE); i++) {
129 if (!p->interrupts[i]) {
130 ACPI_DEBUG_PRINT((ACPI_DB_WARN, "Invalid IRQ %d\n", p->interrupts[i]));
131 continue;
132 } 121 }
133 link->irq.possible[i] = p->interrupts[i]; 122 for (i = 0;
134 link->irq.possible_count++; 123 (i < p->number_of_interrupts
124 && i < ACPI_PCI_LINK_MAX_POSSIBLE); i++) {
125 if (!p->interrupts[i]) {
126 ACPI_DEBUG_PRINT((ACPI_DB_WARN,
127 "Invalid IRQ %d\n",
128 p->interrupts[i]));
129 continue;
130 }
131 link->irq.possible[i] = p->interrupts[i];
132 link->irq.possible_count++;
133 }
134 link->irq.edge_level = p->edge_level;
135 link->irq.active_high_low = p->active_high_low;
136 link->irq.resource_type = ACPI_RSTYPE_IRQ;
137 break;
135 } 138 }
136 link->irq.edge_level = p->edge_level;
137 link->irq.active_high_low = p->active_high_low;
138 link->irq.resource_type = ACPI_RSTYPE_IRQ;
139 break;
140 }
141 case ACPI_RSTYPE_EXT_IRQ: 139 case ACPI_RSTYPE_EXT_IRQ:
142 { 140 {
143 struct acpi_resource_ext_irq *p = &resource->data.extended_irq; 141 struct acpi_resource_ext_irq *p =
144 if (!p || !p->number_of_interrupts) { 142 &resource->data.extended_irq;
145 ACPI_DEBUG_PRINT((ACPI_DB_WARN, 143 if (!p || !p->number_of_interrupts) {
146 "Blank EXT IRQ resource\n")); 144 ACPI_DEBUG_PRINT((ACPI_DB_WARN,
147 return_ACPI_STATUS(AE_OK); 145 "Blank EXT IRQ resource\n"));
148 } 146 return_ACPI_STATUS(AE_OK);
149 for (i = 0; (i<p->number_of_interrupts && i<ACPI_PCI_LINK_MAX_POSSIBLE); i++) { 147 }
150 if (!p->interrupts[i]) { 148 for (i = 0;
151 ACPI_DEBUG_PRINT((ACPI_DB_WARN, "Invalid IRQ %d\n", p->interrupts[i])); 149 (i < p->number_of_interrupts
152 continue; 150 && i < ACPI_PCI_LINK_MAX_POSSIBLE); i++) {
151 if (!p->interrupts[i]) {
152 ACPI_DEBUG_PRINT((ACPI_DB_WARN,
153 "Invalid IRQ %d\n",
154 p->interrupts[i]));
155 continue;
156 }
157 link->irq.possible[i] = p->interrupts[i];
158 link->irq.possible_count++;
153 } 159 }
154 link->irq.possible[i] = p->interrupts[i]; 160 link->irq.edge_level = p->edge_level;
155 link->irq.possible_count++; 161 link->irq.active_high_low = p->active_high_low;
162 link->irq.resource_type = ACPI_RSTYPE_EXT_IRQ;
163 break;
156 } 164 }
157 link->irq.edge_level = p->edge_level;
158 link->irq.active_high_low = p->active_high_low;
159 link->irq.resource_type = ACPI_RSTYPE_EXT_IRQ;
160 break;
161 }
162 default: 165 default:
163 ACPI_DEBUG_PRINT((ACPI_DB_ERROR, 166 ACPI_DEBUG_PRINT((ACPI_DB_ERROR,
164 "Resource is not an IRQ entry\n")); 167 "Resource is not an IRQ entry\n"));
165 return_ACPI_STATUS(AE_OK); 168 return_ACPI_STATUS(AE_OK);
166 } 169 }
167 170
168 return_ACPI_STATUS(AE_CTRL_TERMINATE); 171 return_ACPI_STATUS(AE_CTRL_TERMINATE);
169} 172}
170 173
171 174static int acpi_pci_link_get_possible(struct acpi_pci_link *link)
172static int
173acpi_pci_link_get_possible (
174 struct acpi_pci_link *link)
175{ 175{
176 acpi_status status; 176 acpi_status status;
177 177
178 ACPI_FUNCTION_TRACE("acpi_pci_link_get_possible"); 178 ACPI_FUNCTION_TRACE("acpi_pci_link_get_possible");
179 179
@@ -181,62 +181,60 @@ acpi_pci_link_get_possible (
181 return_VALUE(-EINVAL); 181 return_VALUE(-EINVAL);
182 182
183 status = acpi_walk_resources(link->handle, METHOD_NAME__PRS, 183 status = acpi_walk_resources(link->handle, METHOD_NAME__PRS,
184 acpi_pci_link_check_possible, link); 184 acpi_pci_link_check_possible, link);
185 if (ACPI_FAILURE(status)) { 185 if (ACPI_FAILURE(status)) {
186 ACPI_DEBUG_PRINT((ACPI_DB_ERROR, "Error evaluating _PRS\n")); 186 ACPI_DEBUG_PRINT((ACPI_DB_ERROR, "Error evaluating _PRS\n"));
187 return_VALUE(-ENODEV); 187 return_VALUE(-ENODEV);
188 } 188 }
189 189
190 ACPI_DEBUG_PRINT((ACPI_DB_INFO, 190 ACPI_DEBUG_PRINT((ACPI_DB_INFO,
191 "Found %d possible IRQs\n", link->irq.possible_count)); 191 "Found %d possible IRQs\n",
192 link->irq.possible_count));
192 193
193 return_VALUE(0); 194 return_VALUE(0);
194} 195}
195 196
196
197static acpi_status 197static acpi_status
198acpi_pci_link_check_current ( 198acpi_pci_link_check_current(struct acpi_resource *resource, void *context)
199 struct acpi_resource *resource,
200 void *context)
201{ 199{
202 int *irq = (int *) context; 200 int *irq = (int *)context;
203 201
204 ACPI_FUNCTION_TRACE("acpi_pci_link_check_current"); 202 ACPI_FUNCTION_TRACE("acpi_pci_link_check_current");
205 203
206 switch (resource->id) { 204 switch (resource->id) {
207 case ACPI_RSTYPE_IRQ: 205 case ACPI_RSTYPE_IRQ:
208 { 206 {
209 struct acpi_resource_irq *p = &resource->data.irq; 207 struct acpi_resource_irq *p = &resource->data.irq;
210 if (!p || !p->number_of_interrupts) { 208 if (!p || !p->number_of_interrupts) {
211 /* 209 /*
212 * IRQ descriptors may have no IRQ# bits set, 210 * IRQ descriptors may have no IRQ# bits set,
213 * particularly those those w/ _STA disabled 211 * particularly those those w/ _STA disabled
214 */ 212 */
215 ACPI_DEBUG_PRINT((ACPI_DB_INFO, 213 ACPI_DEBUG_PRINT((ACPI_DB_INFO,
216 "Blank IRQ resource\n")); 214 "Blank IRQ resource\n"));
217 return_ACPI_STATUS(AE_OK); 215 return_ACPI_STATUS(AE_OK);
216 }
217 *irq = p->interrupts[0];
218 break;
218 } 219 }
219 *irq = p->interrupts[0];
220 break;
221 }
222 case ACPI_RSTYPE_EXT_IRQ: 220 case ACPI_RSTYPE_EXT_IRQ:
223 { 221 {
224 struct acpi_resource_ext_irq *p = &resource->data.extended_irq; 222 struct acpi_resource_ext_irq *p =
225 if (!p || !p->number_of_interrupts) { 223 &resource->data.extended_irq;
226 /* 224 if (!p || !p->number_of_interrupts) {
227 * extended IRQ descriptors must 225 /*
228 * return at least 1 IRQ 226 * extended IRQ descriptors must
229 */ 227 * return at least 1 IRQ
230 ACPI_DEBUG_PRINT((ACPI_DB_WARN, 228 */
231 "Blank EXT IRQ resource\n")); 229 ACPI_DEBUG_PRINT((ACPI_DB_WARN,
232 return_ACPI_STATUS(AE_OK); 230 "Blank EXT IRQ resource\n"));
231 return_ACPI_STATUS(AE_OK);
232 }
233 *irq = p->interrupts[0];
234 break;
233 } 235 }
234 *irq = p->interrupts[0];
235 break;
236 }
237 default: 236 default:
238 ACPI_DEBUG_PRINT((ACPI_DB_ERROR, 237 ACPI_DEBUG_PRINT((ACPI_DB_ERROR, "Resource isn't an IRQ\n"));
239 "Resource isn't an IRQ\n"));
240 return_ACPI_STATUS(AE_OK); 238 return_ACPI_STATUS(AE_OK);
241 } 239 }
242 return_ACPI_STATUS(AE_CTRL_TERMINATE); 240 return_ACPI_STATUS(AE_CTRL_TERMINATE);
@@ -249,13 +247,11 @@ acpi_pci_link_check_current (
249 * 0 - success 247 * 0 - success
250 * !0 - failure 248 * !0 - failure
251 */ 249 */
252static int 250static int acpi_pci_link_get_current(struct acpi_pci_link *link)
253acpi_pci_link_get_current (
254 struct acpi_pci_link *link)
255{ 251{
256 int result = 0; 252 int result = 0;
257 acpi_status status = AE_OK; 253 acpi_status status = AE_OK;
258 int irq = 0; 254 int irq = 0;
259 255
260 ACPI_FUNCTION_TRACE("acpi_pci_link_get_current"); 256 ACPI_FUNCTION_TRACE("acpi_pci_link_get_current");
261 257
@@ -269,7 +265,8 @@ acpi_pci_link_get_current (
269 /* Query _STA, set link->device->status */ 265 /* Query _STA, set link->device->status */
270 result = acpi_bus_get_status(link->device); 266 result = acpi_bus_get_status(link->device);
271 if (result) { 267 if (result) {
272 ACPI_DEBUG_PRINT((ACPI_DB_ERROR, "Unable to read status\n")); 268 ACPI_DEBUG_PRINT((ACPI_DB_ERROR,
269 "Unable to read status\n"));
273 goto end; 270 goto end;
274 } 271 }
275 272
@@ -284,7 +281,7 @@ acpi_pci_link_get_current (
284 */ 281 */
285 282
286 status = acpi_walk_resources(link->handle, METHOD_NAME__CRS, 283 status = acpi_walk_resources(link->handle, METHOD_NAME__CRS,
287 acpi_pci_link_check_current, &irq); 284 acpi_pci_link_check_current, &irq);
288 if (ACPI_FAILURE(status)) { 285 if (ACPI_FAILURE(status)) {
289 ACPI_DEBUG_PRINT((ACPI_DB_ERROR, "Error evaluating _CRS\n")); 286 ACPI_DEBUG_PRINT((ACPI_DB_ERROR, "Error evaluating _CRS\n"));
290 result = -ENODEV; 287 result = -ENODEV;
@@ -300,58 +297,61 @@ acpi_pci_link_get_current (
300 297
301 ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Link at IRQ %d \n", link->irq.active)); 298 ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Link at IRQ %d \n", link->irq.active));
302 299
303end: 300 end:
304 return_VALUE(result); 301 return_VALUE(result);
305} 302}
306 303
307static int 304static int acpi_pci_link_set(struct acpi_pci_link *link, int irq)
308acpi_pci_link_set (
309 struct acpi_pci_link *link,
310 int irq)
311{ 305{
312 int result = 0; 306 int result = 0;
313 acpi_status status = AE_OK; 307 acpi_status status = AE_OK;
314 struct { 308 struct {
315 struct acpi_resource res; 309 struct acpi_resource res;
316 struct acpi_resource end; 310 struct acpi_resource end;
317 } *resource; 311 } *resource;
318 struct acpi_buffer buffer = {0, NULL}; 312 struct acpi_buffer buffer = { 0, NULL };
319 313
320 ACPI_FUNCTION_TRACE("acpi_pci_link_set"); 314 ACPI_FUNCTION_TRACE("acpi_pci_link_set");
321 315
322 if (!link || !irq) 316 if (!link || !irq)
323 return_VALUE(-EINVAL); 317 return_VALUE(-EINVAL);
324 318
325 resource = kmalloc( sizeof(*resource)+1, GFP_KERNEL); 319 resource = kmalloc(sizeof(*resource) + 1, GFP_KERNEL);
326 if(!resource) 320 if (!resource)
327 return_VALUE(-ENOMEM); 321 return_VALUE(-ENOMEM);
328 322
329 memset(resource, 0, sizeof(*resource)+1); 323 memset(resource, 0, sizeof(*resource) + 1);
330 buffer.length = sizeof(*resource) +1; 324 buffer.length = sizeof(*resource) + 1;
331 buffer.pointer = resource; 325 buffer.pointer = resource;
332 326
333 switch(link->irq.resource_type) { 327 switch (link->irq.resource_type) {
334 case ACPI_RSTYPE_IRQ: 328 case ACPI_RSTYPE_IRQ:
335 resource->res.id = ACPI_RSTYPE_IRQ; 329 resource->res.id = ACPI_RSTYPE_IRQ;
336 resource->res.length = sizeof(struct acpi_resource); 330 resource->res.length = sizeof(struct acpi_resource);
337 resource->res.data.irq.edge_level = link->irq.edge_level; 331 resource->res.data.irq.edge_level = link->irq.edge_level;
338 resource->res.data.irq.active_high_low = link->irq.active_high_low; 332 resource->res.data.irq.active_high_low =
333 link->irq.active_high_low;
339 if (link->irq.edge_level == ACPI_EDGE_SENSITIVE) 334 if (link->irq.edge_level == ACPI_EDGE_SENSITIVE)
340 resource->res.data.irq.shared_exclusive = ACPI_EXCLUSIVE; 335 resource->res.data.irq.shared_exclusive =
336 ACPI_EXCLUSIVE;
341 else 337 else
342 resource->res.data.irq.shared_exclusive = ACPI_SHARED; 338 resource->res.data.irq.shared_exclusive = ACPI_SHARED;
343 resource->res.data.irq.number_of_interrupts = 1; 339 resource->res.data.irq.number_of_interrupts = 1;
344 resource->res.data.irq.interrupts[0] = irq; 340 resource->res.data.irq.interrupts[0] = irq;
345 break; 341 break;
346 342
347 case ACPI_RSTYPE_EXT_IRQ: 343 case ACPI_RSTYPE_EXT_IRQ:
348 resource->res.id = ACPI_RSTYPE_EXT_IRQ; 344 resource->res.id = ACPI_RSTYPE_EXT_IRQ;
349 resource->res.length = sizeof(struct acpi_resource); 345 resource->res.length = sizeof(struct acpi_resource);
350 resource->res.data.extended_irq.producer_consumer = ACPI_CONSUMER; 346 resource->res.data.extended_irq.producer_consumer =
351 resource->res.data.extended_irq.edge_level = link->irq.edge_level; 347 ACPI_CONSUMER;
352 resource->res.data.extended_irq.active_high_low = link->irq.active_high_low; 348 resource->res.data.extended_irq.edge_level =
349 link->irq.edge_level;
350 resource->res.data.extended_irq.active_high_low =
351 link->irq.active_high_low;
353 if (link->irq.edge_level == ACPI_EDGE_SENSITIVE) 352 if (link->irq.edge_level == ACPI_EDGE_SENSITIVE)
354 resource->res.data.irq.shared_exclusive = ACPI_EXCLUSIVE; 353 resource->res.data.irq.shared_exclusive =
354 ACPI_EXCLUSIVE;
355 else 355 else
356 resource->res.data.irq.shared_exclusive = ACPI_SHARED; 356 resource->res.data.irq.shared_exclusive = ACPI_SHARED;
357 resource->res.data.extended_irq.number_of_interrupts = 1; 357 resource->res.data.extended_irq.number_of_interrupts = 1;
@@ -384,9 +384,9 @@ acpi_pci_link_set (
384 } 384 }
385 if (!link->device->status.enabled) { 385 if (!link->device->status.enabled) {
386 printk(KERN_WARNING PREFIX 386 printk(KERN_WARNING PREFIX
387 "%s [%s] disabled and referenced, BIOS bug.\n", 387 "%s [%s] disabled and referenced, BIOS bug.\n",
388 acpi_device_name(link->device), 388 acpi_device_name(link->device),
389 acpi_device_bid(link->device)); 389 acpi_device_bid(link->device));
390 } 390 }
391 391
392 /* Query _CRS, set link->irq.active */ 392 /* Query _CRS, set link->irq.active */
@@ -404,22 +404,20 @@ acpi_pci_link_set (
404 * policy: when _CRS doesn't return what we just _SRS 404 * policy: when _CRS doesn't return what we just _SRS
405 * assume _SRS worked and override _CRS value. 405 * assume _SRS worked and override _CRS value.
406 */ 406 */
407 printk(KERN_WARNING PREFIX 407 printk(KERN_WARNING PREFIX
408 "%s [%s] BIOS reported IRQ %d, using IRQ %d\n", 408 "%s [%s] BIOS reported IRQ %d, using IRQ %d\n",
409 acpi_device_name(link->device), 409 acpi_device_name(link->device),
410 acpi_device_bid(link->device), 410 acpi_device_bid(link->device), link->irq.active, irq);
411 link->irq.active, irq);
412 link->irq.active = irq; 411 link->irq.active = irq;
413 } 412 }
414 413
415 ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Set IRQ %d\n", link->irq.active)); 414 ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Set IRQ %d\n", link->irq.active));
416 415
417end: 416 end:
418 kfree(resource); 417 kfree(resource);
419 return_VALUE(result); 418 return_VALUE(result);
420} 419}
421 420
422
423/* -------------------------------------------------------------------------- 421/* --------------------------------------------------------------------------
424 PCI Link IRQ Management 422 PCI Link IRQ Management
425 -------------------------------------------------------------------------- */ 423 -------------------------------------------------------------------------- */
@@ -469,8 +467,8 @@ static int acpi_irq_penalty[ACPI_MAX_IRQS] = {
469 PIRQ_PENALTY_ISA_ALWAYS, /* IRQ0 timer */ 467 PIRQ_PENALTY_ISA_ALWAYS, /* IRQ0 timer */
470 PIRQ_PENALTY_ISA_ALWAYS, /* IRQ1 keyboard */ 468 PIRQ_PENALTY_ISA_ALWAYS, /* IRQ1 keyboard */
471 PIRQ_PENALTY_ISA_ALWAYS, /* IRQ2 cascade */ 469 PIRQ_PENALTY_ISA_ALWAYS, /* IRQ2 cascade */
472 PIRQ_PENALTY_ISA_TYPICAL, /* IRQ3 serial */ 470 PIRQ_PENALTY_ISA_TYPICAL, /* IRQ3 serial */
473 PIRQ_PENALTY_ISA_TYPICAL, /* IRQ4 serial */ 471 PIRQ_PENALTY_ISA_TYPICAL, /* IRQ4 serial */
474 PIRQ_PENALTY_ISA_TYPICAL, /* IRQ5 sometimes SoundBlaster */ 472 PIRQ_PENALTY_ISA_TYPICAL, /* IRQ5 sometimes SoundBlaster */
475 PIRQ_PENALTY_ISA_TYPICAL, /* IRQ6 */ 473 PIRQ_PENALTY_ISA_TYPICAL, /* IRQ6 */
476 PIRQ_PENALTY_ISA_TYPICAL, /* IRQ7 parallel, spurious */ 474 PIRQ_PENALTY_ISA_TYPICAL, /* IRQ7 parallel, spurious */
@@ -482,15 +480,14 @@ static int acpi_irq_penalty[ACPI_MAX_IRQS] = {
482 PIRQ_PENALTY_ISA_USED, /* IRQ13 fpe, sometimes */ 480 PIRQ_PENALTY_ISA_USED, /* IRQ13 fpe, sometimes */
483 PIRQ_PENALTY_ISA_USED, /* IRQ14 ide0 */ 481 PIRQ_PENALTY_ISA_USED, /* IRQ14 ide0 */
484 PIRQ_PENALTY_ISA_USED, /* IRQ15 ide1 */ 482 PIRQ_PENALTY_ISA_USED, /* IRQ15 ide1 */
485 /* >IRQ15 */ 483 /* >IRQ15 */
486}; 484};
487 485
488int __init 486int __init acpi_irq_penalty_init(void)
489acpi_irq_penalty_init(void)
490{ 487{
491 struct list_head *node = NULL; 488 struct list_head *node = NULL;
492 struct acpi_pci_link *link = NULL; 489 struct acpi_pci_link *link = NULL;
493 int i = 0; 490 int i = 0;
494 491
495 ACPI_FUNCTION_TRACE("acpi_irq_penalty_init"); 492 ACPI_FUNCTION_TRACE("acpi_irq_penalty_init");
496 493
@@ -501,7 +498,8 @@ acpi_irq_penalty_init(void)
501 498
502 link = list_entry(node, struct acpi_pci_link, node); 499 link = list_entry(node, struct acpi_pci_link, node);
503 if (!link) { 500 if (!link) {
504 ACPI_DEBUG_PRINT((ACPI_DB_ERROR, "Invalid link context\n")); 501 ACPI_DEBUG_PRINT((ACPI_DB_ERROR,
502 "Invalid link context\n"));
505 continue; 503 continue;
506 } 504 }
507 505
@@ -510,15 +508,20 @@ acpi_irq_penalty_init(void)
510 * useful for breaking ties. 508 * useful for breaking ties.
511 */ 509 */
512 if (link->irq.possible_count) { 510 if (link->irq.possible_count) {
513 int penalty = PIRQ_PENALTY_PCI_POSSIBLE / link->irq.possible_count; 511 int penalty =
512 PIRQ_PENALTY_PCI_POSSIBLE /
513 link->irq.possible_count;
514 514
515 for (i = 0; i < link->irq.possible_count; i++) { 515 for (i = 0; i < link->irq.possible_count; i++) {
516 if (link->irq.possible[i] < ACPI_MAX_ISA_IRQ) 516 if (link->irq.possible[i] < ACPI_MAX_ISA_IRQ)
517 acpi_irq_penalty[link->irq.possible[i]] += penalty; 517 acpi_irq_penalty[link->irq.
518 possible[i]] +=
519 penalty;
518 } 520 }
519 521
520 } else if (link->irq.active) { 522 } else if (link->irq.active) {
521 acpi_irq_penalty[link->irq.active] += PIRQ_PENALTY_PCI_POSSIBLE; 523 acpi_irq_penalty[link->irq.active] +=
524 PIRQ_PENALTY_PCI_POSSIBLE;
522 } 525 }
523 } 526 }
524 /* Add a penalty for the SCI */ 527 /* Add a penalty for the SCI */
@@ -529,10 +532,10 @@ acpi_irq_penalty_init(void)
529 532
530static int acpi_irq_balance; /* 0: static, 1: balance */ 533static int acpi_irq_balance; /* 0: static, 1: balance */
531 534
532static int acpi_pci_link_allocate(struct acpi_pci_link *link) 535static int acpi_pci_link_allocate(struct acpi_pci_link *link)
533{ 536{
534 int irq; 537 int irq;
535 int i; 538 int i;
536 539
537 ACPI_FUNCTION_TRACE("acpi_pci_link_allocate"); 540 ACPI_FUNCTION_TRACE("acpi_pci_link_allocate");
538 541
@@ -556,7 +559,7 @@ static int acpi_pci_link_allocate(struct acpi_pci_link *link)
556 if (i == link->irq.possible_count) { 559 if (i == link->irq.possible_count) {
557 if (acpi_strict) 560 if (acpi_strict)
558 printk(KERN_WARNING PREFIX "_CRS %d not found" 561 printk(KERN_WARNING PREFIX "_CRS %d not found"
559 " in _PRS\n", link->irq.active); 562 " in _PRS\n", link->irq.active);
560 link->irq.active = 0; 563 link->irq.active = 0;
561 } 564 }
562 565
@@ -575,23 +578,25 @@ static int acpi_pci_link_allocate(struct acpi_pci_link *link)
575 * the use of IRQs 9, 10, 11, and >15. 578 * the use of IRQs 9, 10, 11, and >15.
576 */ 579 */
577 for (i = (link->irq.possible_count - 1); i >= 0; i--) { 580 for (i = (link->irq.possible_count - 1); i >= 0; i--) {
578 if (acpi_irq_penalty[irq] > acpi_irq_penalty[link->irq.possible[i]]) 581 if (acpi_irq_penalty[irq] >
582 acpi_irq_penalty[link->irq.possible[i]])
579 irq = link->irq.possible[i]; 583 irq = link->irq.possible[i];
580 } 584 }
581 } 585 }
582 586
583 /* Attempt to enable the link device at this IRQ. */ 587 /* Attempt to enable the link device at this IRQ. */
584 if (acpi_pci_link_set(link, irq)) { 588 if (acpi_pci_link_set(link, irq)) {
585 printk(PREFIX "Unable to set IRQ for %s [%s] (likely buggy ACPI BIOS).\n" 589 printk(PREFIX
586 "Try pci=noacpi or acpi=off\n", 590 "Unable to set IRQ for %s [%s] (likely buggy ACPI BIOS).\n"
587 acpi_device_name(link->device), 591 "Try pci=noacpi or acpi=off\n",
588 acpi_device_bid(link->device)); 592 acpi_device_name(link->device),
593 acpi_device_bid(link->device));
589 return_VALUE(-ENODEV); 594 return_VALUE(-ENODEV);
590 } else { 595 } else {
591 acpi_irq_penalty[link->irq.active] += PIRQ_PENALTY_PCI_USING; 596 acpi_irq_penalty[link->irq.active] += PIRQ_PENALTY_PCI_USING;
592 printk(PREFIX "%s [%s] enabled at IRQ %d\n", 597 printk(PREFIX "%s [%s] enabled at IRQ %d\n",
593 acpi_device_name(link->device), 598 acpi_device_name(link->device),
594 acpi_device_bid(link->device), link->irq.active); 599 acpi_device_bid(link->device), link->irq.active);
595 } 600 }
596 601
597 link->irq.initialized = 1; 602 link->irq.initialized = 1;
@@ -606,16 +611,13 @@ static int acpi_pci_link_allocate(struct acpi_pci_link *link)
606 */ 611 */
607 612
608int 613int
609acpi_pci_link_allocate_irq ( 614acpi_pci_link_allocate_irq(acpi_handle handle,
610 acpi_handle handle, 615 int index,
611 int index, 616 int *edge_level, int *active_high_low, char **name)
612 int *edge_level,
613 int *active_high_low,
614 char **name)
615{ 617{
616 int result = 0; 618 int result = 0;
617 struct acpi_device *device = NULL; 619 struct acpi_device *device = NULL;
618 struct acpi_pci_link *link = NULL; 620 struct acpi_pci_link *link = NULL;
619 621
620 ACPI_FUNCTION_TRACE("acpi_pci_link_allocate_irq"); 622 ACPI_FUNCTION_TRACE("acpi_pci_link_allocate_irq");
621 623
@@ -625,7 +627,7 @@ acpi_pci_link_allocate_irq (
625 return_VALUE(-1); 627 return_VALUE(-1);
626 } 628 }
627 629
628 link = (struct acpi_pci_link *) acpi_driver_data(device); 630 link = (struct acpi_pci_link *)acpi_driver_data(device);
629 if (!link) { 631 if (!link) {
630 ACPI_DEBUG_PRINT((ACPI_DB_ERROR, "Invalid link context\n")); 632 ACPI_DEBUG_PRINT((ACPI_DB_ERROR, "Invalid link context\n"));
631 return_VALUE(-1); 633 return_VALUE(-1);
@@ -642,20 +644,24 @@ acpi_pci_link_allocate_irq (
642 up(&acpi_link_lock); 644 up(&acpi_link_lock);
643 return_VALUE(-1); 645 return_VALUE(-1);
644 } 646 }
645 647
646 if (!link->irq.active) { 648 if (!link->irq.active) {
647 up(&acpi_link_lock); 649 up(&acpi_link_lock);
648 ACPI_DEBUG_PRINT((ACPI_DB_ERROR, "Link active IRQ is 0!\n")); 650 ACPI_DEBUG_PRINT((ACPI_DB_ERROR, "Link active IRQ is 0!\n"));
649 return_VALUE(-1); 651 return_VALUE(-1);
650 } 652 }
651 link->refcnt ++; 653 link->refcnt++;
652 up(&acpi_link_lock); 654 up(&acpi_link_lock);
653 655
654 if (edge_level) *edge_level = link->irq.edge_level; 656 if (edge_level)
655 if (active_high_low) *active_high_low = link->irq.active_high_low; 657 *edge_level = link->irq.edge_level;
656 if (name) *name = acpi_device_bid(link->device); 658 if (active_high_low)
659 *active_high_low = link->irq.active_high_low;
660 if (name)
661 *name = acpi_device_bid(link->device);
657 ACPI_DEBUG_PRINT((ACPI_DB_INFO, 662 ACPI_DEBUG_PRINT((ACPI_DB_INFO,
658 "Link %s is referenced\n", acpi_device_bid(link->device))); 663 "Link %s is referenced\n",
664 acpi_device_bid(link->device)));
659 return_VALUE(link->irq.active); 665 return_VALUE(link->irq.active);
660} 666}
661 667
@@ -663,12 +669,11 @@ acpi_pci_link_allocate_irq (
663 * We don't change link's irq information here. After it is reenabled, we 669 * We don't change link's irq information here. After it is reenabled, we
664 * continue use the info 670 * continue use the info
665 */ 671 */
666int 672int acpi_pci_link_free_irq(acpi_handle handle)
667acpi_pci_link_free_irq(acpi_handle handle)
668{ 673{
669 struct acpi_device *device = NULL; 674 struct acpi_device *device = NULL;
670 struct acpi_pci_link *link = NULL; 675 struct acpi_pci_link *link = NULL;
671 acpi_status result; 676 acpi_status result;
672 677
673 ACPI_FUNCTION_TRACE("acpi_pci_link_free_irq"); 678 ACPI_FUNCTION_TRACE("acpi_pci_link_free_irq");
674 679
@@ -678,7 +683,7 @@ acpi_pci_link_free_irq(acpi_handle handle)
678 return_VALUE(-1); 683 return_VALUE(-1);
679 } 684 }
680 685
681 link = (struct acpi_pci_link *) acpi_driver_data(device); 686 link = (struct acpi_pci_link *)acpi_driver_data(device);
682 if (!link) { 687 if (!link) {
683 ACPI_DEBUG_PRINT((ACPI_DB_ERROR, "Invalid link context\n")); 688 ACPI_DEBUG_PRINT((ACPI_DB_ERROR, "Invalid link context\n"));
684 return_VALUE(-1); 689 return_VALUE(-1);
@@ -690,7 +695,6 @@ acpi_pci_link_free_irq(acpi_handle handle)
690 ACPI_DEBUG_PRINT((ACPI_DB_ERROR, "Link isn't initialized\n")); 695 ACPI_DEBUG_PRINT((ACPI_DB_ERROR, "Link isn't initialized\n"));
691 return_VALUE(-1); 696 return_VALUE(-1);
692 } 697 }
693
694#ifdef FUTURE_USE 698#ifdef FUTURE_USE
695 /* 699 /*
696 * The Link reference count allows us to _DISable an unused link 700 * The Link reference count allows us to _DISable an unused link
@@ -701,10 +705,11 @@ acpi_pci_link_free_irq(acpi_handle handle)
701 * to prevent duplicate acpi_pci_link_set() 705 * to prevent duplicate acpi_pci_link_set()
702 * which would harm some systems 706 * which would harm some systems
703 */ 707 */
704 link->refcnt --; 708 link->refcnt--;
705#endif 709#endif
706 ACPI_DEBUG_PRINT((ACPI_DB_INFO, 710 ACPI_DEBUG_PRINT((ACPI_DB_INFO,
707 "Link %s is dereferenced\n", acpi_device_bid(link->device))); 711 "Link %s is dereferenced\n",
712 acpi_device_bid(link->device)));
708 713
709 if (link->refcnt == 0) { 714 if (link->refcnt == 0) {
710 acpi_ut_evaluate_object(link->handle, "_DIS", 0, NULL); 715 acpi_ut_evaluate_object(link->handle, "_DIS", 0, NULL);
@@ -712,17 +717,17 @@ acpi_pci_link_free_irq(acpi_handle handle)
712 up(&acpi_link_lock); 717 up(&acpi_link_lock);
713 return_VALUE(link->irq.active); 718 return_VALUE(link->irq.active);
714} 719}
720
715/* -------------------------------------------------------------------------- 721/* --------------------------------------------------------------------------
716 Driver Interface 722 Driver Interface
717 -------------------------------------------------------------------------- */ 723 -------------------------------------------------------------------------- */
718 724
719static int 725static int acpi_pci_link_add(struct acpi_device *device)
720acpi_pci_link_add(struct acpi_device *device)
721{ 726{
722 int result = 0; 727 int result = 0;
723 struct acpi_pci_link *link = NULL; 728 struct acpi_pci_link *link = NULL;
724 int i = 0; 729 int i = 0;
725 int found = 0; 730 int found = 0;
726 731
727 ACPI_FUNCTION_TRACE("acpi_pci_link_add"); 732 ACPI_FUNCTION_TRACE("acpi_pci_link_add");
728 733
@@ -749,13 +754,12 @@ acpi_pci_link_add(struct acpi_device *device)
749 acpi_pci_link_get_current(link); 754 acpi_pci_link_get_current(link);
750 755
751 printk(PREFIX "%s [%s] (IRQs", acpi_device_name(device), 756 printk(PREFIX "%s [%s] (IRQs", acpi_device_name(device),
752 acpi_device_bid(device)); 757 acpi_device_bid(device));
753 for (i = 0; i < link->irq.possible_count; i++) { 758 for (i = 0; i < link->irq.possible_count; i++) {
754 if (link->irq.active == link->irq.possible[i]) { 759 if (link->irq.active == link->irq.possible[i]) {
755 printk(" *%d", link->irq.possible[i]); 760 printk(" *%d", link->irq.possible[i]);
756 found = 1; 761 found = 1;
757 } 762 } else
758 else
759 printk(" %d", link->irq.possible[i]); 763 printk(" %d", link->irq.possible[i]);
760 } 764 }
761 765
@@ -764,7 +768,7 @@ acpi_pci_link_add(struct acpi_device *device)
764 if (!found) 768 if (!found)
765 printk(" *%d", link->irq.active); 769 printk(" *%d", link->irq.active);
766 770
767 if(!link->device->status.enabled) 771 if (!link->device->status.enabled)
768 printk(", disabled."); 772 printk(", disabled.");
769 773
770 printk("\n"); 774 printk("\n");
@@ -773,7 +777,7 @@ acpi_pci_link_add(struct acpi_device *device)
773 list_add_tail(&link->node, &acpi_link.entries); 777 list_add_tail(&link->node, &acpi_link.entries);
774 acpi_link.count++; 778 acpi_link.count++;
775 779
776end: 780 end:
777 /* disable all links -- to be activated on use */ 781 /* disable all links -- to be activated on use */
778 acpi_ut_evaluate_object(link->handle, "_DIS", 0, NULL); 782 acpi_ut_evaluate_object(link->handle, "_DIS", 0, NULL);
779 up(&acpi_link_lock); 783 up(&acpi_link_lock);
@@ -784,9 +788,7 @@ end:
784 return_VALUE(result); 788 return_VALUE(result);
785} 789}
786 790
787static int 791static int acpi_pci_link_resume(struct acpi_pci_link *link)
788acpi_pci_link_resume(
789 struct acpi_pci_link *link)
790{ 792{
791 ACPI_FUNCTION_TRACE("acpi_pci_link_resume"); 793 ACPI_FUNCTION_TRACE("acpi_pci_link_resume");
792 794
@@ -801,11 +803,10 @@ acpi_pci_link_resume(
801 * after every device calls pci_disable_device in .resume. 803 * after every device calls pci_disable_device in .resume.
802 */ 804 */
803int acpi_in_resume; 805int acpi_in_resume;
804static int 806static int irqrouter_resume(struct sys_device *dev)
805irqrouter_resume(struct sys_device *dev)
806{ 807{
807 struct list_head *node = NULL; 808 struct list_head *node = NULL;
808 struct acpi_pci_link *link = NULL; 809 struct acpi_pci_link *link = NULL;
809 810
810 ACPI_FUNCTION_TRACE("irqrouter_resume"); 811 ACPI_FUNCTION_TRACE("irqrouter_resume");
811 812
@@ -814,7 +815,7 @@ irqrouter_resume(struct sys_device *dev)
814 link = list_entry(node, struct acpi_pci_link, node); 815 link = list_entry(node, struct acpi_pci_link, node);
815 if (!link) { 816 if (!link) {
816 ACPI_DEBUG_PRINT((ACPI_DB_ERROR, 817 ACPI_DEBUG_PRINT((ACPI_DB_ERROR,
817 "Invalid link context\n")); 818 "Invalid link context\n"));
818 continue; 819 continue;
819 } 820 }
820 acpi_pci_link_resume(link); 821 acpi_pci_link_resume(link);
@@ -823,9 +824,7 @@ irqrouter_resume(struct sys_device *dev)
823 return_VALUE(0); 824 return_VALUE(0);
824} 825}
825 826
826 827static int acpi_pci_link_remove(struct acpi_device *device, int type)
827static int
828acpi_pci_link_remove(struct acpi_device *device, int type)
829{ 828{
830 struct acpi_pci_link *link = NULL; 829 struct acpi_pci_link *link = NULL;
831 830
@@ -834,7 +833,7 @@ acpi_pci_link_remove(struct acpi_device *device, int type)
834 if (!device || !acpi_driver_data(device)) 833 if (!device || !acpi_driver_data(device))
835 return_VALUE(-EINVAL); 834 return_VALUE(-EINVAL);
836 835
837 link = (struct acpi_pci_link *) acpi_driver_data(device); 836 link = (struct acpi_pci_link *)acpi_driver_data(device);
838 837
839 down(&acpi_link_lock); 838 down(&acpi_link_lock);
840 list_del(&link->node); 839 list_del(&link->node);
@@ -856,14 +855,14 @@ static int __init acpi_irq_penalty_update(char *str, int used)
856 int retval; 855 int retval;
857 int irq; 856 int irq;
858 857
859 retval = get_option(&str,&irq); 858 retval = get_option(&str, &irq);
860 859
861 if (!retval) 860 if (!retval)
862 break; /* no number found */ 861 break; /* no number found */
863 862
864 if (irq < 0) 863 if (irq < 0)
865 continue; 864 continue;
866 865
867 if (irq >= ACPI_MAX_IRQS) 866 if (irq >= ACPI_MAX_IRQS)
868 continue; 867 continue;
869 868
@@ -902,6 +901,7 @@ static int __init acpi_irq_isa(char *str)
902{ 901{
903 return acpi_irq_penalty_update(str, 1); 902 return acpi_irq_penalty_update(str, 1);
904} 903}
904
905__setup("acpi_irq_isa=", acpi_irq_isa); 905__setup("acpi_irq_isa=", acpi_irq_isa);
906 906
907/* 907/*
@@ -913,6 +913,7 @@ static int __init acpi_irq_pci(char *str)
913{ 913{
914 return acpi_irq_penalty_update(str, 0); 914 return acpi_irq_penalty_update(str, 0);
915} 915}
916
916__setup("acpi_irq_pci=", acpi_irq_pci); 917__setup("acpi_irq_pci=", acpi_irq_pci);
917 918
918static int __init acpi_irq_nobalance_set(char *str) 919static int __init acpi_irq_nobalance_set(char *str)
@@ -920,6 +921,7 @@ static int __init acpi_irq_nobalance_set(char *str)
920 acpi_irq_balance = 0; 921 acpi_irq_balance = 0;
921 return 1; 922 return 1;
922} 923}
924
923__setup("acpi_irq_nobalance", acpi_irq_nobalance_set); 925__setup("acpi_irq_nobalance", acpi_irq_nobalance_set);
924 926
925int __init acpi_irq_balance_set(char *str) 927int __init acpi_irq_balance_set(char *str)
@@ -927,22 +929,20 @@ int __init acpi_irq_balance_set(char *str)
927 acpi_irq_balance = 1; 929 acpi_irq_balance = 1;
928 return 1; 930 return 1;
929} 931}
930__setup("acpi_irq_balance", acpi_irq_balance_set);
931 932
933__setup("acpi_irq_balance", acpi_irq_balance_set);
932 934
933/* FIXME: we will remove this interface after all drivers call pci_disable_device */ 935/* FIXME: we will remove this interface after all drivers call pci_disable_device */
934static struct sysdev_class irqrouter_sysdev_class = { 936static struct sysdev_class irqrouter_sysdev_class = {
935 set_kset_name("irqrouter"), 937 set_kset_name("irqrouter"),
936 .resume = irqrouter_resume, 938 .resume = irqrouter_resume,
937}; 939};
938 940
939
940static struct sys_device device_irqrouter = { 941static struct sys_device device_irqrouter = {
941 .id = 0, 942 .id = 0,
942 .cls = &irqrouter_sysdev_class, 943 .cls = &irqrouter_sysdev_class,
943}; 944};
944 945
945
946static int __init irqrouter_init_sysfs(void) 946static int __init irqrouter_init_sysfs(void)
947{ 947{
948 int error; 948 int error;
@@ -957,12 +957,11 @@ static int __init irqrouter_init_sysfs(void)
957 error = sysdev_register(&device_irqrouter); 957 error = sysdev_register(&device_irqrouter);
958 958
959 return_VALUE(error); 959 return_VALUE(error);
960} 960}
961 961
962device_initcall(irqrouter_init_sysfs); 962device_initcall(irqrouter_init_sysfs);
963 963
964 964static int __init acpi_pci_link_init(void)
965static int __init acpi_pci_link_init (void)
966{ 965{
967 ACPI_FUNCTION_TRACE("acpi_pci_link_init"); 966 ACPI_FUNCTION_TRACE("acpi_pci_link_init");
968 967
generated by cgit v1.2.2 (git 2.25.0) at 2024-10-01 00:16:35 -0400