Commit | Line | Data |
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1da177e4 LT |
1 | /* |
2 | * PCI Express Hot Plug Controller Driver | |
3 | * | |
4 | * Copyright (C) 1995,2001 Compaq Computer Corporation | |
5 | * Copyright (C) 2001 Greg Kroah-Hartman (greg@kroah.com) | |
6 | * Copyright (C) 2001 IBM Corp. | |
7 | * Copyright (C) 2003-2004 Intel Corporation | |
8 | * | |
9 | * All rights reserved. | |
10 | * | |
11 | * This program is free software; you can redistribute it and/or modify | |
12 | * it under the terms of the GNU General Public License as published by | |
13 | * the Free Software Foundation; either version 2 of the License, or (at | |
14 | * your option) any later version. | |
15 | * | |
16 | * This program is distributed in the hope that it will be useful, but | |
17 | * WITHOUT ANY WARRANTY; without even the implied warranty of | |
18 | * MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE, GOOD TITLE or | |
19 | * NON INFRINGEMENT. See the GNU General Public License for more | |
20 | * details. | |
21 | * | |
22 | * You should have received a copy of the GNU General Public License | |
23 | * along with this program; if not, write to the Free Software | |
24 | * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. | |
25 | * | |
8cf4c195 | 26 | * Send feedback to <greg@kroah.com>, <kristen.c.accardi@intel.com> |
1da177e4 LT |
27 | * |
28 | */ | |
29 | ||
1da177e4 LT |
30 | #include <linux/module.h> |
31 | #include <linux/moduleparam.h> | |
32 | #include <linux/kernel.h> | |
33 | #include <linux/types.h> | |
1da177e4 | 34 | #include <linux/pci.h> |
1da177e4 | 35 | #include "pciehp.h" |
1da177e4 | 36 | #include <linux/interrupt.h> |
34d03419 | 37 | #include <linux/time.h> |
1da177e4 LT |
38 | |
39 | /* Global variables */ | |
40 | int pciehp_debug; | |
41 | int pciehp_poll_mode; | |
42 | int pciehp_poll_time; | |
a3a45ec8 | 43 | int pciehp_force; |
5d386e1a | 44 | struct workqueue_struct *pciehp_wq; |
1da177e4 LT |
45 | |
46 | #define DRIVER_VERSION "0.4" | |
47 | #define DRIVER_AUTHOR "Dan Zink <dan.zink@compaq.com>, Greg Kroah-Hartman <greg@kroah.com>, Dely Sy <dely.l.sy@intel.com>" | |
48 | #define DRIVER_DESC "PCI Express Hot Plug Controller Driver" | |
49 | ||
50 | MODULE_AUTHOR(DRIVER_AUTHOR); | |
51 | MODULE_DESCRIPTION(DRIVER_DESC); | |
52 | MODULE_LICENSE("GPL"); | |
53 | ||
54 | module_param(pciehp_debug, bool, 0644); | |
55 | module_param(pciehp_poll_mode, bool, 0644); | |
56 | module_param(pciehp_poll_time, int, 0644); | |
a3a45ec8 | 57 | module_param(pciehp_force, bool, 0644); |
1da177e4 LT |
58 | MODULE_PARM_DESC(pciehp_debug, "Debugging mode enabled or not"); |
59 | MODULE_PARM_DESC(pciehp_poll_mode, "Using polling mechanism for hot-plug events or not"); | |
60 | MODULE_PARM_DESC(pciehp_poll_time, "Polling mechanism frequency, in seconds"); | |
a3a45ec8 | 61 | MODULE_PARM_DESC(pciehp_force, "Force pciehp, even if _OSC and OSHP are missing"); |
1da177e4 LT |
62 | |
63 | #define PCIE_MODULE_NAME "pciehp" | |
64 | ||
1da177e4 LT |
65 | static int set_attention_status (struct hotplug_slot *slot, u8 value); |
66 | static int enable_slot (struct hotplug_slot *slot); | |
67 | static int disable_slot (struct hotplug_slot *slot); | |
68 | static int get_power_status (struct hotplug_slot *slot, u8 *value); | |
69 | static int get_attention_status (struct hotplug_slot *slot, u8 *value); | |
70 | static int get_latch_status (struct hotplug_slot *slot, u8 *value); | |
71 | static int get_adapter_status (struct hotplug_slot *slot, u8 *value); | |
72 | static int get_max_bus_speed (struct hotplug_slot *slot, enum pci_bus_speed *value); | |
73 | static int get_cur_bus_speed (struct hotplug_slot *slot, enum pci_bus_speed *value); | |
74 | ||
75 | static struct hotplug_slot_ops pciehp_hotplug_slot_ops = { | |
76 | .owner = THIS_MODULE, | |
77 | .set_attention_status = set_attention_status, | |
78 | .enable_slot = enable_slot, | |
79 | .disable_slot = disable_slot, | |
80 | .get_power_status = get_power_status, | |
81 | .get_attention_status = get_attention_status, | |
82 | .get_latch_status = get_latch_status, | |
83 | .get_adapter_status = get_adapter_status, | |
84 | .get_max_bus_speed = get_max_bus_speed, | |
85 | .get_cur_bus_speed = get_cur_bus_speed, | |
86 | }; | |
87 | ||
34d03419 KCA |
88 | /* |
89 | * Check the status of the Electro Mechanical Interlock (EMI) | |
90 | */ | |
91 | static int get_lock_status(struct hotplug_slot *hotplug_slot, u8 *value) | |
92 | { | |
93 | struct slot *slot = hotplug_slot->private; | |
94 | return (slot->hpc_ops->get_emi_status(slot, value)); | |
95 | } | |
96 | ||
97 | /* | |
98 | * sysfs interface for the Electro Mechanical Interlock (EMI) | |
99 | * 1 == locked, 0 == unlocked | |
100 | */ | |
101 | static ssize_t lock_read_file(struct hotplug_slot *slot, char *buf) | |
102 | { | |
103 | int retval; | |
104 | u8 value; | |
105 | ||
106 | retval = get_lock_status(slot, &value); | |
107 | if (retval) | |
108 | goto lock_read_exit; | |
109 | retval = sprintf (buf, "%d\n", value); | |
110 | ||
111 | lock_read_exit: | |
112 | return retval; | |
113 | } | |
114 | ||
115 | /* | |
116 | * Change the status of the Electro Mechanical Interlock (EMI) | |
117 | * This is a toggle - in addition there must be at least 1 second | |
118 | * in between toggles. | |
119 | */ | |
120 | static int set_lock_status(struct hotplug_slot *hotplug_slot, u8 status) | |
121 | { | |
122 | struct slot *slot = hotplug_slot->private; | |
123 | int retval; | |
124 | u8 value; | |
125 | ||
126 | mutex_lock(&slot->ctrl->crit_sect); | |
127 | ||
128 | /* has it been >1 sec since our last toggle? */ | |
129 | if ((get_seconds() - slot->last_emi_toggle) < 1) | |
130 | return -EINVAL; | |
131 | ||
132 | /* see what our current state is */ | |
133 | retval = get_lock_status(hotplug_slot, &value); | |
134 | if (retval || (value == status)) | |
135 | goto set_lock_exit; | |
136 | ||
137 | slot->hpc_ops->toggle_emi(slot); | |
138 | set_lock_exit: | |
139 | mutex_unlock(&slot->ctrl->crit_sect); | |
140 | return 0; | |
141 | } | |
142 | ||
143 | /* | |
144 | * sysfs interface which allows the user to toggle the Electro Mechanical | |
145 | * Interlock. Valid values are either 0 or 1. 0 == unlock, 1 == lock | |
146 | */ | |
7f2feec1 TI |
147 | static ssize_t lock_write_file(struct hotplug_slot *hotplug_slot, |
148 | const char *buf, size_t count) | |
34d03419 | 149 | { |
7f2feec1 | 150 | struct slot *slot = hotplug_slot->private; |
34d03419 KCA |
151 | unsigned long llock; |
152 | u8 lock; | |
153 | int retval = 0; | |
154 | ||
155 | llock = simple_strtoul(buf, NULL, 10); | |
156 | lock = (u8)(llock & 0xff); | |
157 | ||
158 | switch (lock) { | |
159 | case 0: | |
160 | case 1: | |
7f2feec1 | 161 | retval = set_lock_status(hotplug_slot, lock); |
34d03419 KCA |
162 | break; |
163 | default: | |
7f2feec1 TI |
164 | ctrl_err(slot->ctrl, "%d is an invalid lock value\n", |
165 | lock); | |
34d03419 KCA |
166 | retval = -EINVAL; |
167 | } | |
168 | if (retval) | |
169 | return retval; | |
170 | return count; | |
171 | } | |
172 | ||
173 | static struct hotplug_slot_attribute hotplug_slot_attr_lock = { | |
174 | .attr = {.name = "lock", .mode = S_IFREG | S_IRUGO | S_IWUSR}, | |
175 | .show = lock_read_file, | |
176 | .store = lock_write_file | |
177 | }; | |
178 | ||
b308240b DS |
179 | /** |
180 | * release_slot - free up the memory used by a slot | |
181 | * @hotplug_slot: slot to free | |
182 | */ | |
183 | static void release_slot(struct hotplug_slot *hotplug_slot) | |
184 | { | |
7f2feec1 TI |
185 | struct slot *slot = hotplug_slot->private; |
186 | ||
18b341b7 | 187 | ctrl_dbg(slot->ctrl, "%s: physical_slot = %s\n", |
e1acb24f | 188 | __func__, hotplug_slot_name(hotplug_slot)); |
b308240b | 189 | |
c4635eb0 KK |
190 | kfree(hotplug_slot->info); |
191 | kfree(hotplug_slot); | |
a0b17257 KK |
192 | } |
193 | ||
1da177e4 LT |
194 | static int init_slots(struct controller *ctrl) |
195 | { | |
121082e2 | 196 | struct slot *slot; |
121082e2 | 197 | struct hotplug_slot *hotplug_slot; |
a0b17257 | 198 | struct hotplug_slot_info *info; |
e1acb24f | 199 | char name[SLOT_NAME_SIZE]; |
a0b17257 | 200 | int retval = -ENOMEM; |
1da177e4 | 201 | |
c4635eb0 | 202 | list_for_each_entry(slot, &ctrl->slot_list, slot_list) { |
a0b17257 KK |
203 | hotplug_slot = kzalloc(sizeof(*hotplug_slot), GFP_KERNEL); |
204 | if (!hotplug_slot) | |
c4635eb0 | 205 | goto error; |
1da177e4 | 206 | |
a0b17257 KK |
207 | info = kzalloc(sizeof(*info), GFP_KERNEL); |
208 | if (!info) | |
1da177e4 | 209 | goto error_hpslot; |
1da177e4 LT |
210 | |
211 | /* register this slot with the hotplug pci core */ | |
c4635eb0 | 212 | hotplug_slot->info = info; |
121082e2 JJ |
213 | hotplug_slot->private = slot; |
214 | hotplug_slot->release = &release_slot; | |
121082e2 | 215 | hotplug_slot->ops = &pciehp_hotplug_slot_ops; |
c4635eb0 | 216 | slot->hotplug_slot = hotplug_slot; |
e1acb24f | 217 | snprintf(name, SLOT_NAME_SIZE, "%u", slot->number); |
121082e2 | 218 | |
18b341b7 TI |
219 | ctrl_dbg(ctrl, "Registering domain:bus:dev=%04x:%02x:%02x " |
220 | "hp_slot=%x sun=%x slot_device_offset=%x\n", | |
221 | pci_domain_nr(ctrl->pci_dev->subordinate), | |
222 | slot->bus, slot->device, slot->hp_slot, slot->number, | |
223 | ctrl->slot_device_offset); | |
f46753c5 AC |
224 | retval = pci_hp_register(hotplug_slot, |
225 | ctrl->pci_dev->subordinate, | |
1359f270 | 226 | slot->device, |
e1acb24f | 227 | name); |
a0b17257 | 228 | if (retval) { |
7f2feec1 TI |
229 | ctrl_err(ctrl, "pci_hp_register failed with error %d\n", |
230 | retval); | |
a0b17257 | 231 | goto error_info; |
1da177e4 | 232 | } |
e1acb24f AC |
233 | get_power_status(hotplug_slot, &info->power_status); |
234 | get_attention_status(hotplug_slot, &info->attention_status); | |
235 | get_latch_status(hotplug_slot, &info->latch_status); | |
236 | get_adapter_status(hotplug_slot, &info->adapter_status); | |
34d03419 | 237 | /* create additional sysfs entries */ |
ae416e6b | 238 | if (EMI(ctrl)) { |
f46753c5 | 239 | retval = sysfs_create_file(&hotplug_slot->pci_slot->kobj, |
34d03419 KCA |
240 | &hotplug_slot_attr_lock.attr); |
241 | if (retval) { | |
242 | pci_hp_deregister(hotplug_slot); | |
18b341b7 | 243 | ctrl_err(ctrl, "Cannot create additional sysfs " |
7f2feec1 | 244 | "entries\n"); |
34d03419 KCA |
245 | goto error_info; |
246 | } | |
247 | } | |
1da177e4 LT |
248 | } |
249 | ||
250 | return 0; | |
1da177e4 | 251 | error_info: |
a0b17257 | 252 | kfree(info); |
1da177e4 | 253 | error_hpslot: |
121082e2 | 254 | kfree(hotplug_slot); |
1da177e4 | 255 | error: |
a0b17257 | 256 | return retval; |
1da177e4 LT |
257 | } |
258 | ||
2410fa4e | 259 | static void cleanup_slots(struct controller *ctrl) |
1da177e4 | 260 | { |
2410fa4e | 261 | struct slot *slot; |
1da177e4 | 262 | |
c4635eb0 | 263 | list_for_each_entry(slot, &ctrl->slot_list, slot_list) { |
ae416e6b | 264 | if (EMI(ctrl)) |
f46753c5 | 265 | sysfs_remove_file(&slot->hotplug_slot->pci_slot->kobj, |
34d03419 | 266 | &hotplug_slot_attr_lock.attr); |
2410fa4e | 267 | pci_hp_deregister(slot->hotplug_slot); |
1da177e4 | 268 | } |
1da177e4 LT |
269 | } |
270 | ||
1da177e4 LT |
271 | /* |
272 | * set_attention_status - Turns the Amber LED for a slot on, off or blink | |
273 | */ | |
274 | static int set_attention_status(struct hotplug_slot *hotplug_slot, u8 status) | |
275 | { | |
276 | struct slot *slot = hotplug_slot->private; | |
277 | ||
18b341b7 | 278 | ctrl_dbg(slot->ctrl, "%s: physical_slot = %s\n", |
e1acb24f | 279 | __func__, slot_name(slot)); |
1da177e4 LT |
280 | |
281 | hotplug_slot->info->attention_status = status; | |
a073a826 | 282 | |
ae416e6b | 283 | if (ATTN_LED(slot->ctrl)) |
1da177e4 LT |
284 | slot->hpc_ops->set_attention_status(slot, status); |
285 | ||
286 | return 0; | |
287 | } | |
288 | ||
289 | ||
290 | static int enable_slot(struct hotplug_slot *hotplug_slot) | |
291 | { | |
292 | struct slot *slot = hotplug_slot->private; | |
293 | ||
18b341b7 | 294 | ctrl_dbg(slot->ctrl, "%s: physical_slot = %s\n", |
e1acb24f | 295 | __func__, slot_name(slot)); |
1da177e4 | 296 | |
5d386e1a | 297 | return pciehp_sysfs_enable_slot(slot); |
1da177e4 LT |
298 | } |
299 | ||
300 | ||
301 | static int disable_slot(struct hotplug_slot *hotplug_slot) | |
302 | { | |
303 | struct slot *slot = hotplug_slot->private; | |
304 | ||
18b341b7 | 305 | ctrl_dbg(slot->ctrl, "%s: physical_slot = %s\n", |
e1acb24f | 306 | __func__, slot_name(slot)); |
1da177e4 | 307 | |
5d386e1a | 308 | return pciehp_sysfs_disable_slot(slot); |
1da177e4 LT |
309 | } |
310 | ||
311 | static int get_power_status(struct hotplug_slot *hotplug_slot, u8 *value) | |
312 | { | |
313 | struct slot *slot = hotplug_slot->private; | |
314 | int retval; | |
315 | ||
18b341b7 | 316 | ctrl_dbg(slot->ctrl, "%s: physical_slot = %s\n", |
e1acb24f | 317 | __func__, slot_name(slot)); |
1da177e4 LT |
318 | |
319 | retval = slot->hpc_ops->get_power_status(slot, value); | |
320 | if (retval < 0) | |
321 | *value = hotplug_slot->info->power_status; | |
322 | ||
323 | return 0; | |
324 | } | |
325 | ||
326 | static int get_attention_status(struct hotplug_slot *hotplug_slot, u8 *value) | |
327 | { | |
328 | struct slot *slot = hotplug_slot->private; | |
329 | int retval; | |
330 | ||
18b341b7 | 331 | ctrl_dbg(slot->ctrl, "%s: physical_slot = %s\n", |
e1acb24f | 332 | __func__, slot_name(slot)); |
1da177e4 LT |
333 | |
334 | retval = slot->hpc_ops->get_attention_status(slot, value); | |
335 | if (retval < 0) | |
336 | *value = hotplug_slot->info->attention_status; | |
337 | ||
338 | return 0; | |
339 | } | |
340 | ||
341 | static int get_latch_status(struct hotplug_slot *hotplug_slot, u8 *value) | |
342 | { | |
343 | struct slot *slot = hotplug_slot->private; | |
344 | int retval; | |
345 | ||
18b341b7 | 346 | ctrl_dbg(slot->ctrl, "%s: physical_slot = %s\n", |
e1acb24f | 347 | __func__, slot_name(slot)); |
1da177e4 LT |
348 | |
349 | retval = slot->hpc_ops->get_latch_status(slot, value); | |
350 | if (retval < 0) | |
351 | *value = hotplug_slot->info->latch_status; | |
352 | ||
353 | return 0; | |
354 | } | |
355 | ||
356 | static int get_adapter_status(struct hotplug_slot *hotplug_slot, u8 *value) | |
357 | { | |
358 | struct slot *slot = hotplug_slot->private; | |
359 | int retval; | |
360 | ||
18b341b7 | 361 | ctrl_dbg(slot->ctrl, "%s: physical_slot = %s\n", |
e1acb24f | 362 | __func__, slot_name(slot)); |
1da177e4 LT |
363 | |
364 | retval = slot->hpc_ops->get_adapter_status(slot, value); | |
365 | if (retval < 0) | |
366 | *value = hotplug_slot->info->adapter_status; | |
367 | ||
368 | return 0; | |
369 | } | |
370 | ||
f46753c5 AC |
371 | static int get_max_bus_speed(struct hotplug_slot *hotplug_slot, |
372 | enum pci_bus_speed *value) | |
1da177e4 LT |
373 | { |
374 | struct slot *slot = hotplug_slot->private; | |
375 | int retval; | |
376 | ||
18b341b7 | 377 | ctrl_dbg(slot->ctrl, "%s: physical_slot = %s\n", |
e1acb24f | 378 | __func__, slot_name(slot)); |
a073a826 | 379 | |
1da177e4 LT |
380 | retval = slot->hpc_ops->get_max_bus_speed(slot, value); |
381 | if (retval < 0) | |
382 | *value = PCI_SPEED_UNKNOWN; | |
383 | ||
384 | return 0; | |
385 | } | |
386 | ||
387 | static int get_cur_bus_speed(struct hotplug_slot *hotplug_slot, enum pci_bus_speed *value) | |
388 | { | |
389 | struct slot *slot = hotplug_slot->private; | |
390 | int retval; | |
391 | ||
18b341b7 | 392 | ctrl_dbg(slot->ctrl, "%s: physical_slot = %s\n", |
e1acb24f | 393 | __func__, slot_name(slot)); |
a073a826 | 394 | |
1da177e4 LT |
395 | retval = slot->hpc_ops->get_cur_bus_speed(slot, value); |
396 | if (retval < 0) | |
397 | *value = PCI_SPEED_UNKNOWN; | |
398 | ||
399 | return 0; | |
400 | } | |
401 | ||
402 | static int pciehp_probe(struct pcie_device *dev, const struct pcie_port_service_id *id) | |
403 | { | |
404 | int rc; | |
405 | struct controller *ctrl; | |
406 | struct slot *t_slot; | |
1da177e4 | 407 | u8 value; |
125c39f7 KK |
408 | struct pci_dev *pdev = dev->port; |
409 | ||
410 | if (pciehp_force) | |
7f2feec1 TI |
411 | dev_info(&dev->device, |
412 | "Bypassing BIOS check for pciehp use on %s\n", | |
413 | pci_name(pdev)); | |
125c39f7 KK |
414 | else if (pciehp_get_hp_hw_control_from_firmware(pdev)) |
415 | goto err_out_none; | |
a073a826 | 416 | |
c4635eb0 | 417 | ctrl = pcie_init(dev); |
1da177e4 | 418 | if (!ctrl) { |
18b341b7 | 419 | dev_err(&dev->device, "Controller initialization failed\n"); |
c4635eb0 | 420 | goto err_out_none; |
1da177e4 | 421 | } |
b9708940 | 422 | set_service_data(dev, ctrl); |
1da177e4 | 423 | |
1da177e4 LT |
424 | /* Setup the slot information structures */ |
425 | rc = init_slots(ctrl); | |
426 | if (rc) { | |
f46753c5 | 427 | if (rc == -EBUSY) |
18b341b7 | 428 | ctrl_warn(ctrl, "Slot already registered by another " |
7f2feec1 | 429 | "hotplug driver\n"); |
f46753c5 | 430 | else |
18b341b7 | 431 | ctrl_err(ctrl, "Slot initialization failed\n"); |
a8c2b635 | 432 | goto err_out_release_ctlr; |
1da177e4 LT |
433 | } |
434 | ||
db9aaf0b | 435 | /* Check if slot is occupied */ |
48fe3915 | 436 | t_slot = pciehp_find_slot(ctrl, ctrl->slot_device_offset); |
db9aaf0b KK |
437 | t_slot->hpc_ops->get_adapter_status(t_slot, &value); |
438 | if (value) { | |
439 | if (pciehp_force) | |
440 | pciehp_enable_slot(t_slot); | |
441 | } else { | |
442 | /* Power off slot if not occupied */ | |
443 | if (POWER_CTRL(ctrl)) { | |
444 | rc = t_slot->hpc_ops->power_off_slot(t_slot); | |
445 | if (rc) | |
446 | goto err_out_free_ctrl_slot; | |
447 | } | |
1da177e4 LT |
448 | } |
449 | ||
1da177e4 LT |
450 | return 0; |
451 | ||
452 | err_out_free_ctrl_slot: | |
453 | cleanup_slots(ctrl); | |
a8c2b635 | 454 | err_out_release_ctlr: |
1da177e4 | 455 | ctrl->hpc_ops->release_ctlr(ctrl); |
1da177e4 LT |
456 | err_out_none: |
457 | return -ENODEV; | |
458 | } | |
459 | ||
92333526 | 460 | static void pciehp_remove (struct pcie_device *dev) |
1da177e4 | 461 | { |
b9708940 | 462 | struct controller *ctrl = get_service_data(dev); |
1da177e4 | 463 | |
92333526 KK |
464 | cleanup_slots(ctrl); |
465 | ctrl->hpc_ops->release_ctlr(ctrl); | |
1da177e4 LT |
466 | } |
467 | ||
468 | #ifdef CONFIG_PM | |
7f4927c1 | 469 | static int pciehp_suspend (struct pcie_device *dev, pm_message_t state) |
1da177e4 | 470 | { |
7f2feec1 | 471 | dev_info(&dev->device, "%s ENTRY\n", __func__); |
1da177e4 LT |
472 | return 0; |
473 | } | |
474 | ||
475 | static int pciehp_resume (struct pcie_device *dev) | |
476 | { | |
7f2feec1 | 477 | dev_info(&dev->device, "%s ENTRY\n", __func__); |
cd2fe83a | 478 | if (pciehp_force) { |
b9708940 | 479 | struct controller *ctrl = get_service_data(dev); |
cd2fe83a ML |
480 | struct slot *t_slot; |
481 | u8 status; | |
482 | ||
483 | /* reinitialize the chipset's event detection logic */ | |
c4635eb0 | 484 | pcie_enable_notification(ctrl); |
cd2fe83a ML |
485 | |
486 | t_slot = pciehp_find_slot(ctrl, ctrl->slot_device_offset); | |
487 | ||
488 | /* Check if slot is occupied */ | |
489 | t_slot->hpc_ops->get_adapter_status(t_slot, &status); | |
490 | if (status) | |
491 | pciehp_enable_slot(t_slot); | |
492 | else | |
493 | pciehp_disable_slot(t_slot); | |
494 | } | |
1da177e4 LT |
495 | return 0; |
496 | } | |
497 | #endif | |
498 | ||
a073a826 KK |
499 | static struct pcie_port_service_id port_pci_ids[] = { { |
500 | .vendor = PCI_ANY_ID, | |
1da177e4 | 501 | .device = PCI_ANY_ID, |
8b245e45 | 502 | .port_type = PCIE_ANY_PORT, |
1da177e4 | 503 | .service_type = PCIE_PORT_SERVICE_HP, |
a073a826 | 504 | .driver_data = 0, |
1da177e4 LT |
505 | }, { /* end: all zeroes */ } |
506 | }; | |
1da177e4 LT |
507 | |
508 | static struct pcie_port_service_driver hpdriver_portdrv = { | |
83e9ad54 | 509 | .name = PCIE_MODULE_NAME, |
1da177e4 LT |
510 | .id_table = &port_pci_ids[0], |
511 | ||
512 | .probe = pciehp_probe, | |
513 | .remove = pciehp_remove, | |
514 | ||
515 | #ifdef CONFIG_PM | |
516 | .suspend = pciehp_suspend, | |
517 | .resume = pciehp_resume, | |
518 | #endif /* PM */ | |
519 | }; | |
520 | ||
521 | static int __init pcied_init(void) | |
522 | { | |
523 | int retval = 0; | |
524 | ||
a8a2be94 | 525 | retval = pcie_port_service_register(&hpdriver_portdrv); |
526 | dbg("pcie_port_service_register = %d\n", retval); | |
527 | info(DRIVER_DESC " version: " DRIVER_VERSION "\n"); | |
528 | if (retval) | |
18b341b7 | 529 | dbg("Failure to register service\n"); |
1da177e4 LT |
530 | return retval; |
531 | } | |
532 | ||
533 | static void __exit pcied_cleanup(void) | |
534 | { | |
535 | dbg("unload_pciehpd()\n"); | |
1da177e4 | 536 | pcie_port_service_unregister(&hpdriver_portdrv); |
1da177e4 LT |
537 | info(DRIVER_DESC " version: " DRIVER_VERSION " unloaded\n"); |
538 | } | |
539 | ||
540 | module_init(pcied_init); | |
541 | module_exit(pcied_cleanup); |