Commit | Line | Data |
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1da177e4 LT |
1 | /* |
2 | * Standard 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> |
f7391f53 | 35 | #include <linux/workqueue.h> |
1da177e4 | 36 | #include "shpchp.h" |
1da177e4 LT |
37 | |
38 | /* Global variables */ | |
39 | int shpchp_debug; | |
40 | int shpchp_poll_mode; | |
41 | int shpchp_poll_time; | |
f7391f53 | 42 | struct workqueue_struct *shpchp_wq; |
1da177e4 LT |
43 | |
44 | #define DRIVER_VERSION "0.4" | |
45 | #define DRIVER_AUTHOR "Dan Zink <dan.zink@compaq.com>, Greg Kroah-Hartman <greg@kroah.com>, Dely Sy <dely.l.sy@intel.com>" | |
46 | #define DRIVER_DESC "Standard Hot Plug PCI Controller Driver" | |
47 | ||
48 | MODULE_AUTHOR(DRIVER_AUTHOR); | |
49 | MODULE_DESCRIPTION(DRIVER_DESC); | |
50 | MODULE_LICENSE("GPL"); | |
51 | ||
52 | module_param(shpchp_debug, bool, 0644); | |
53 | module_param(shpchp_poll_mode, bool, 0644); | |
54 | module_param(shpchp_poll_time, int, 0644); | |
55 | MODULE_PARM_DESC(shpchp_debug, "Debugging mode enabled or not"); | |
56 | MODULE_PARM_DESC(shpchp_poll_mode, "Using polling mechanism for hot-plug events or not"); | |
57 | MODULE_PARM_DESC(shpchp_poll_time, "Polling mechanism frequency, in seconds"); | |
58 | ||
59 | #define SHPC_MODULE_NAME "shpchp" | |
60 | ||
1da177e4 LT |
61 | static int set_attention_status (struct hotplug_slot *slot, u8 value); |
62 | static int enable_slot (struct hotplug_slot *slot); | |
63 | static int disable_slot (struct hotplug_slot *slot); | |
64 | static int get_power_status (struct hotplug_slot *slot, u8 *value); | |
65 | static int get_attention_status (struct hotplug_slot *slot, u8 *value); | |
66 | static int get_latch_status (struct hotplug_slot *slot, u8 *value); | |
67 | static int get_adapter_status (struct hotplug_slot *slot, u8 *value); | |
81f15442 | 68 | static int get_address (struct hotplug_slot *slot, u32 *value); |
1da177e4 LT |
69 | static int get_max_bus_speed (struct hotplug_slot *slot, enum pci_bus_speed *value); |
70 | static int get_cur_bus_speed (struct hotplug_slot *slot, enum pci_bus_speed *value); | |
71 | ||
72 | static struct hotplug_slot_ops shpchp_hotplug_slot_ops = { | |
73 | .owner = THIS_MODULE, | |
74 | .set_attention_status = set_attention_status, | |
75 | .enable_slot = enable_slot, | |
76 | .disable_slot = disable_slot, | |
77 | .get_power_status = get_power_status, | |
78 | .get_attention_status = get_attention_status, | |
79 | .get_latch_status = get_latch_status, | |
80 | .get_adapter_status = get_adapter_status, | |
81f15442 | 81 | .get_address = get_address, |
1da177e4 LT |
82 | .get_max_bus_speed = get_max_bus_speed, |
83 | .get_cur_bus_speed = get_cur_bus_speed, | |
84 | }; | |
85 | ||
86 | /** | |
87 | * release_slot - free up the memory used by a slot | |
88 | * @hotplug_slot: slot to free | |
89 | */ | |
90 | static void release_slot(struct hotplug_slot *hotplug_slot) | |
91 | { | |
ee17fd93 | 92 | struct slot *slot = hotplug_slot->private; |
1da177e4 LT |
93 | |
94 | dbg("%s - physical_slot = %s\n", __FUNCTION__, hotplug_slot->name); | |
95 | ||
96 | kfree(slot->hotplug_slot->info); | |
1da177e4 LT |
97 | kfree(slot->hotplug_slot); |
98 | kfree(slot); | |
99 | } | |
100 | ||
926030f6 KK |
101 | static void make_slot_name(struct slot *slot) |
102 | { | |
103 | snprintf(slot->hotplug_slot->name, SLOT_NAME_SIZE, "%04d_%04d", | |
104 | slot->bus, slot->number); | |
105 | } | |
106 | ||
783c49fc KA |
107 | |
108 | ||
109 | ||
110 | static int | |
111 | shpchprm_get_physical_slot_number(struct controller *ctrl, u32 *sun, | |
112 | u8 busnum, u8 devnum) | |
113 | { | |
114 | int offset = devnum - ctrl->slot_device_offset; | |
115 | ||
116 | dbg("%s: ctrl->slot_num_inc %d, offset %d\n", __FUNCTION__, | |
117 | ctrl->slot_num_inc, offset); | |
118 | *sun = (u8) (ctrl->first_slot + ctrl->slot_num_inc *offset); | |
119 | return 0; | |
120 | } | |
121 | ||
122 | ||
123 | ||
1da177e4 LT |
124 | static int init_slots(struct controller *ctrl) |
125 | { | |
926030f6 KK |
126 | struct slot *slot; |
127 | struct hotplug_slot *hotplug_slot; | |
128 | struct hotplug_slot_info *info; | |
926030f6 KK |
129 | int retval = -ENOMEM; |
130 | int i; | |
131 | u32 sun; | |
132 | ||
133 | for (i = 0; i < ctrl->num_slots; i++) { | |
57c95c0d | 134 | slot = kzalloc(sizeof(*slot), GFP_KERNEL); |
926030f6 | 135 | if (!slot) |
1da177e4 LT |
136 | goto error; |
137 | ||
57c95c0d | 138 | hotplug_slot = kzalloc(sizeof(*hotplug_slot), GFP_KERNEL); |
926030f6 | 139 | if (!hotplug_slot) |
1da177e4 | 140 | goto error_slot; |
926030f6 | 141 | slot->hotplug_slot = hotplug_slot; |
1da177e4 | 142 | |
57c95c0d | 143 | info = kzalloc(sizeof(*info), GFP_KERNEL); |
926030f6 | 144 | if (!info) |
1da177e4 | 145 | goto error_hpslot; |
926030f6 KK |
146 | hotplug_slot->info = info; |
147 | ||
bbe779db | 148 | hotplug_slot->name = slot->name; |
1da177e4 | 149 | |
926030f6 | 150 | slot->hp_slot = i; |
926030f6 KK |
151 | slot->ctrl = ctrl; |
152 | slot->bus = ctrl->slot_bus; | |
153 | slot->device = ctrl->slot_device_offset + i; | |
154 | slot->hpc_ops = ctrl->hpc_ops; | |
a246fa4e | 155 | mutex_init(&slot->lock); |
1da177e4 LT |
156 | |
157 | if (shpchprm_get_physical_slot_number(ctrl, &sun, | |
926030f6 | 158 | slot->bus, slot->device)) |
bbe779db | 159 | goto error_info; |
1da177e4 | 160 | |
926030f6 | 161 | slot->number = sun; |
c4028958 | 162 | INIT_DELAYED_WORK(&slot->work, queue_pushbutton_work); |
1da177e4 LT |
163 | |
164 | /* register this slot with the hotplug pci core */ | |
926030f6 KK |
165 | hotplug_slot->private = slot; |
166 | hotplug_slot->release = &release_slot; | |
167 | make_slot_name(slot); | |
168 | hotplug_slot->ops = &shpchp_hotplug_slot_ops; | |
169 | ||
170 | get_power_status(hotplug_slot, &info->power_status); | |
171 | get_attention_status(hotplug_slot, &info->attention_status); | |
172 | get_latch_status(hotplug_slot, &info->latch_status); | |
173 | get_adapter_status(hotplug_slot, &info->adapter_status); | |
174 | ||
175 | dbg("Registering bus=%x dev=%x hp_slot=%x sun=%x " | |
176 | "slot_device_offset=%x\n", slot->bus, slot->device, | |
177 | slot->hp_slot, slot->number, ctrl->slot_device_offset); | |
178 | retval = pci_hp_register(slot->hotplug_slot); | |
179 | if (retval) { | |
180 | err("pci_hp_register failed with error %d\n", retval); | |
bbe779db | 181 | goto error_info; |
1da177e4 LT |
182 | } |
183 | ||
5b1a960d | 184 | list_add(&slot->slot_list, &ctrl->slot_list); |
1da177e4 LT |
185 | } |
186 | ||
187 | return 0; | |
1da177e4 | 188 | error_info: |
926030f6 | 189 | kfree(info); |
1da177e4 | 190 | error_hpslot: |
926030f6 | 191 | kfree(hotplug_slot); |
1da177e4 | 192 | error_slot: |
926030f6 | 193 | kfree(slot); |
1da177e4 | 194 | error: |
926030f6 | 195 | return retval; |
1da177e4 LT |
196 | } |
197 | ||
f7391f53 | 198 | void cleanup_slots(struct controller *ctrl) |
1da177e4 | 199 | { |
5b1a960d KK |
200 | struct list_head *tmp; |
201 | struct list_head *next; | |
202 | struct slot *slot; | |
1da177e4 | 203 | |
5b1a960d KK |
204 | list_for_each_safe(tmp, next, &ctrl->slot_list) { |
205 | slot = list_entry(tmp, struct slot, slot_list); | |
206 | list_del(&slot->slot_list); | |
f7391f53 | 207 | cancel_delayed_work(&slot->work); |
a246fa4e | 208 | flush_scheduled_work(); |
f7391f53 | 209 | flush_workqueue(shpchp_wq); |
5b1a960d | 210 | pci_hp_deregister(slot->hotplug_slot); |
1da177e4 LT |
211 | } |
212 | } | |
213 | ||
214 | static int get_ctlr_slot_config(struct controller *ctrl) | |
215 | { | |
216 | int num_ctlr_slots; | |
217 | int first_device_num; | |
218 | int physical_slot_num; | |
219 | int updown; | |
220 | int rc; | |
221 | int flags; | |
222 | ||
dfcd5f68 KK |
223 | rc = shpc_get_ctlr_slot_config(ctrl, &num_ctlr_slots, |
224 | &first_device_num, &physical_slot_num, | |
225 | &updown, &flags); | |
1da177e4 | 226 | if (rc) { |
dfcd5f68 KK |
227 | err("%s: get_ctlr_slot_config fail for b:d (%x:%x)\n", |
228 | __FUNCTION__, ctrl->bus, ctrl->device); | |
1da177e4 LT |
229 | return -1; |
230 | } | |
231 | ||
232 | ctrl->num_slots = num_ctlr_slots; | |
233 | ctrl->slot_device_offset = first_device_num; | |
234 | ctrl->first_slot = physical_slot_num; | |
235 | ctrl->slot_num_inc = updown; /* either -1 or 1 */ | |
236 | ||
dfcd5f68 KK |
237 | dbg("%s: num_slot(0x%x) 1st_dev(0x%x) psn(0x%x) updown(%d) for b:d " |
238 | "(%x:%x)\n", __FUNCTION__, num_ctlr_slots, first_device_num, | |
239 | physical_slot_num, updown, ctrl->bus, ctrl->device); | |
1da177e4 LT |
240 | |
241 | return 0; | |
242 | } | |
243 | ||
1da177e4 LT |
244 | /* |
245 | * set_attention_status - Turns the Amber LED for a slot on, off or blink | |
246 | */ | |
247 | static int set_attention_status (struct hotplug_slot *hotplug_slot, u8 status) | |
248 | { | |
dfcd5f68 | 249 | struct slot *slot = get_slot(hotplug_slot, __FUNCTION__); |
1da177e4 LT |
250 | |
251 | dbg("%s - physical_slot = %s\n", __FUNCTION__, hotplug_slot->name); | |
252 | ||
253 | hotplug_slot->info->attention_status = status; | |
254 | slot->hpc_ops->set_attention_status(slot, status); | |
255 | ||
256 | return 0; | |
257 | } | |
258 | ||
1da177e4 LT |
259 | static int enable_slot (struct hotplug_slot *hotplug_slot) |
260 | { | |
dfcd5f68 | 261 | struct slot *slot = get_slot(hotplug_slot, __FUNCTION__); |
1da177e4 LT |
262 | |
263 | dbg("%s - physical_slot = %s\n", __FUNCTION__, hotplug_slot->name); | |
264 | ||
a246fa4e | 265 | return shpchp_sysfs_enable_slot(slot); |
1da177e4 LT |
266 | } |
267 | ||
1da177e4 LT |
268 | static int disable_slot (struct hotplug_slot *hotplug_slot) |
269 | { | |
dfcd5f68 | 270 | struct slot *slot = get_slot(hotplug_slot, __FUNCTION__); |
1da177e4 LT |
271 | |
272 | dbg("%s - physical_slot = %s\n", __FUNCTION__, hotplug_slot->name); | |
273 | ||
a246fa4e | 274 | return shpchp_sysfs_disable_slot(slot); |
1da177e4 LT |
275 | } |
276 | ||
277 | static int get_power_status (struct hotplug_slot *hotplug_slot, u8 *value) | |
278 | { | |
dfcd5f68 | 279 | struct slot *slot = get_slot(hotplug_slot, __FUNCTION__); |
1da177e4 LT |
280 | int retval; |
281 | ||
282 | dbg("%s - physical_slot = %s\n", __FUNCTION__, hotplug_slot->name); | |
283 | ||
284 | retval = slot->hpc_ops->get_power_status(slot, value); | |
285 | if (retval < 0) | |
286 | *value = hotplug_slot->info->power_status; | |
287 | ||
288 | return 0; | |
289 | } | |
290 | ||
291 | static int get_attention_status (struct hotplug_slot *hotplug_slot, u8 *value) | |
292 | { | |
dfcd5f68 | 293 | struct slot *slot = get_slot(hotplug_slot, __FUNCTION__); |
1da177e4 LT |
294 | int retval; |
295 | ||
296 | dbg("%s - physical_slot = %s\n", __FUNCTION__, hotplug_slot->name); | |
297 | ||
298 | retval = slot->hpc_ops->get_attention_status(slot, value); | |
299 | if (retval < 0) | |
300 | *value = hotplug_slot->info->attention_status; | |
301 | ||
302 | return 0; | |
303 | } | |
304 | ||
305 | static int get_latch_status (struct hotplug_slot *hotplug_slot, u8 *value) | |
306 | { | |
dfcd5f68 | 307 | struct slot *slot = get_slot(hotplug_slot, __FUNCTION__); |
1da177e4 LT |
308 | int retval; |
309 | ||
310 | dbg("%s - physical_slot = %s\n", __FUNCTION__, hotplug_slot->name); | |
311 | ||
312 | retval = slot->hpc_ops->get_latch_status(slot, value); | |
313 | if (retval < 0) | |
314 | *value = hotplug_slot->info->latch_status; | |
315 | ||
316 | return 0; | |
317 | } | |
318 | ||
319 | static int get_adapter_status (struct hotplug_slot *hotplug_slot, u8 *value) | |
320 | { | |
dfcd5f68 | 321 | struct slot *slot = get_slot(hotplug_slot, __FUNCTION__); |
1da177e4 LT |
322 | int retval; |
323 | ||
324 | dbg("%s - physical_slot = %s\n", __FUNCTION__, hotplug_slot->name); | |
325 | ||
326 | retval = slot->hpc_ops->get_adapter_status(slot, value); | |
327 | if (retval < 0) | |
328 | *value = hotplug_slot->info->adapter_status; | |
329 | ||
330 | return 0; | |
331 | } | |
332 | ||
81f15442 KK |
333 | static int get_address (struct hotplug_slot *hotplug_slot, u32 *value) |
334 | { | |
dfcd5f68 | 335 | struct slot *slot = get_slot(hotplug_slot, __FUNCTION__); |
81f15442 KK |
336 | struct pci_bus *bus = slot->ctrl->pci_dev->subordinate; |
337 | ||
338 | dbg("%s - physical_slot = %s\n", __FUNCTION__, hotplug_slot->name); | |
339 | ||
340 | *value = (pci_domain_nr(bus) << 16) | (slot->bus << 8) | slot->device; | |
341 | ||
342 | return 0; | |
343 | } | |
344 | ||
1da177e4 LT |
345 | static int get_max_bus_speed (struct hotplug_slot *hotplug_slot, enum pci_bus_speed *value) |
346 | { | |
dfcd5f68 | 347 | struct slot *slot = get_slot(hotplug_slot, __FUNCTION__); |
1da177e4 LT |
348 | int retval; |
349 | ||
350 | dbg("%s - physical_slot = %s\n", __FUNCTION__, hotplug_slot->name); | |
dfcd5f68 | 351 | |
1da177e4 LT |
352 | retval = slot->hpc_ops->get_max_bus_speed(slot, value); |
353 | if (retval < 0) | |
354 | *value = PCI_SPEED_UNKNOWN; | |
355 | ||
356 | return 0; | |
357 | } | |
358 | ||
359 | static int get_cur_bus_speed (struct hotplug_slot *hotplug_slot, enum pci_bus_speed *value) | |
360 | { | |
dfcd5f68 | 361 | struct slot *slot = get_slot(hotplug_slot, __FUNCTION__); |
1da177e4 LT |
362 | int retval; |
363 | ||
364 | dbg("%s - physical_slot = %s\n", __FUNCTION__, hotplug_slot->name); | |
dfcd5f68 | 365 | |
1da177e4 LT |
366 | retval = slot->hpc_ops->get_cur_bus_speed(slot, value); |
367 | if (retval < 0) | |
368 | *value = PCI_SPEED_UNKNOWN; | |
369 | ||
370 | return 0; | |
371 | } | |
372 | ||
1410dc1c | 373 | static int is_shpc_capable(struct pci_dev *dev) |
374 | { | |
375 | if ((dev->vendor == PCI_VENDOR_ID_AMD) || (dev->device == | |
376 | PCI_DEVICE_ID_AMD_GOLAM_7450)) | |
377 | return 1; | |
378 | if (pci_find_capability(dev, PCI_CAP_ID_SHPC)) | |
379 | return 1; | |
380 | ||
381 | return 0; | |
382 | } | |
383 | ||
1da177e4 LT |
384 | static int shpc_probe(struct pci_dev *pdev, const struct pci_device_id *ent) |
385 | { | |
386 | int rc; | |
387 | struct controller *ctrl; | |
388 | struct slot *t_slot; | |
dfcd5f68 KK |
389 | int first_device_num; /* first PCI device number */ |
390 | int num_ctlr_slots; /* number of slots implemented */ | |
1da177e4 | 391 | |
1410dc1c | 392 | if (!is_shpc_capable(pdev)) |
393 | return -ENODEV; | |
394 | ||
57c95c0d | 395 | ctrl = kzalloc(sizeof(*ctrl), GFP_KERNEL); |
1da177e4 LT |
396 | if (!ctrl) { |
397 | err("%s : out of memory\n", __FUNCTION__); | |
398 | goto err_out_none; | |
399 | } | |
5b1a960d | 400 | INIT_LIST_HEAD(&ctrl->slot_list); |
1da177e4 | 401 | |
ee138334 | 402 | rc = shpc_init(ctrl, pdev); |
1da177e4 | 403 | if (rc) { |
dfcd5f68 KK |
404 | dbg("%s: controller initialization failed\n", |
405 | SHPC_MODULE_NAME); | |
1da177e4 LT |
406 | goto err_out_free_ctrl; |
407 | } | |
408 | ||
1da177e4 LT |
409 | pci_set_drvdata(pdev, ctrl); |
410 | ||
1da177e4 LT |
411 | ctrl->bus = pdev->bus->number; |
412 | ctrl->slot_bus = pdev->subordinate->number; | |
1da177e4 LT |
413 | ctrl->device = PCI_SLOT(pdev->devfn); |
414 | ctrl->function = PCI_FUNC(pdev->devfn); | |
dfcd5f68 KK |
415 | |
416 | dbg("ctrl bus=0x%x, device=%x, function=%x, irq=%x\n", | |
417 | ctrl->bus, ctrl->device, ctrl->function, pdev->irq); | |
1da177e4 LT |
418 | |
419 | /* | |
dfcd5f68 | 420 | * Save configuration headers for this and subordinate PCI buses |
1da177e4 | 421 | */ |
1da177e4 LT |
422 | rc = get_ctlr_slot_config(ctrl); |
423 | if (rc) { | |
424 | err(msg_initialization_err, rc); | |
f7391f53 | 425 | goto err_out_release_ctlr; |
1da177e4 LT |
426 | } |
427 | first_device_num = ctrl->slot_device_offset; | |
428 | num_ctlr_slots = ctrl->num_slots; | |
429 | ||
dbd7a788 | 430 | ctrl->add_support = 1; |
dfcd5f68 | 431 | |
1da177e4 LT |
432 | /* Setup the slot information structures */ |
433 | rc = init_slots(ctrl); | |
434 | if (rc) { | |
435 | err(msg_initialization_err, 6); | |
f7391f53 | 436 | goto err_out_release_ctlr; |
1da177e4 LT |
437 | } |
438 | ||
439 | /* Now hpc_functions (slot->hpc_ops->functions) are ready */ | |
440 | t_slot = shpchp_find_slot(ctrl, first_device_num); | |
441 | ||
442 | /* Check for operation bus speed */ | |
443 | rc = t_slot->hpc_ops->get_cur_bus_speed(t_slot, &ctrl->speed); | |
444 | dbg("%s: t_slot->hp_slot %x\n", __FUNCTION__,t_slot->hp_slot); | |
445 | ||
446 | if (rc || ctrl->speed == PCI_SPEED_UNKNOWN) { | |
dfcd5f68 KK |
447 | err(SHPC_MODULE_NAME ": Can't get current bus speed. " |
448 | "Set to 33MHz PCI.\n"); | |
1da177e4 LT |
449 | ctrl->speed = PCI_SPEED_33MHz; |
450 | } | |
451 | ||
e1b95dc6 GKH |
452 | rc = shpchp_create_ctrl_files(ctrl); |
453 | if (rc) | |
454 | goto err_cleanup_slots; | |
1da177e4 LT |
455 | |
456 | return 0; | |
457 | ||
e1b95dc6 GKH |
458 | err_cleanup_slots: |
459 | cleanup_slots(ctrl); | |
f7391f53 | 460 | err_out_release_ctlr: |
1da177e4 LT |
461 | ctrl->hpc_ops->release_ctlr(ctrl); |
462 | err_out_free_ctrl: | |
463 | kfree(ctrl); | |
464 | err_out_none: | |
465 | return -ENODEV; | |
466 | } | |
467 | ||
e6b82b13 | 468 | static void shpc_remove(struct pci_dev *dev) |
1da177e4 | 469 | { |
e6b82b13 | 470 | struct controller *ctrl = pci_get_drvdata(dev); |
1da177e4 | 471 | |
e6b82b13 KK |
472 | shpchp_remove_ctrl_files(ctrl); |
473 | ctrl->hpc_ops->release_ctlr(ctrl); | |
474 | kfree(ctrl); | |
1da177e4 LT |
475 | } |
476 | ||
1da177e4 | 477 | static struct pci_device_id shpcd_pci_tbl[] = { |
dfcd5f68 | 478 | {PCI_DEVICE_CLASS(((PCI_CLASS_BRIDGE_PCI << 8) | 0x00), ~0)}, |
1da177e4 LT |
479 | { /* end: all zeroes */ } |
480 | }; | |
1da177e4 LT |
481 | MODULE_DEVICE_TABLE(pci, shpcd_pci_tbl); |
482 | ||
1da177e4 LT |
483 | static struct pci_driver shpc_driver = { |
484 | .name = SHPC_MODULE_NAME, | |
485 | .id_table = shpcd_pci_tbl, | |
486 | .probe = shpc_probe, | |
e6b82b13 | 487 | .remove = shpc_remove, |
1da177e4 LT |
488 | }; |
489 | ||
1da177e4 LT |
490 | static int __init shpcd_init(void) |
491 | { | |
492 | int retval = 0; | |
493 | ||
494 | #ifdef CONFIG_HOTPLUG_PCI_SHPC_POLL_EVENT_MODE | |
495 | shpchp_poll_mode = 1; | |
496 | #endif | |
497 | ||
424600f9 | 498 | retval = pci_register_driver(&shpc_driver); |
499 | dbg("%s: pci_register_driver = %d\n", __FUNCTION__, retval); | |
500 | info(DRIVER_DESC " version: " DRIVER_VERSION "\n"); | |
1da177e4 LT |
501 | return retval; |
502 | } | |
503 | ||
504 | static void __exit shpcd_cleanup(void) | |
505 | { | |
506 | dbg("unload_shpchpd()\n"); | |
1da177e4 | 507 | pci_unregister_driver(&shpc_driver); |
1da177e4 LT |
508 | info(DRIVER_DESC " version: " DRIVER_VERSION " unloaded\n"); |
509 | } | |
510 | ||
511 | module_init(shpcd_init); | |
512 | module_exit(shpcd_cleanup); |