1 /******************************************************************************
2 *
3 * This file is provided under a dual BSD/GPLv2 license. When using or
4 * redistributing this file, you may do so under either license.
5 *
6 * GPL LICENSE SUMMARY
7 *
8 * Copyright(c) 2007 - 2012 Intel Corporation. All rights reserved.
9 *
10 * This program is free software; you can redistribute it and/or modify
11 * it under the terms of version 2 of the GNU General Public License as
12 * published by the Free Software Foundation.
13 *
14 * This program is distributed in the hope that it will be useful, but
15 * WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
17 * General Public License for more details.
18 *
19 * You should have received a copy of the GNU General Public License
20 * along with this program; if not, write to the Free Software
21 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110,
22 * USA
23 *
24 * The full GNU General Public License is included in this distribution
25 * in the file called LICENSE.GPL.
26 *
27 * Contact Information:
28 * Intel Linux Wireless <ilw@linux.intel.com>
29 * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
30 *
31 * BSD LICENSE
32 *
33 * Copyright(c) 2005 - 2012 Intel Corporation. All rights reserved.
34 * All rights reserved.
35 *
36 * Redistribution and use in source and binary forms, with or without
37 * modification, are permitted provided that the following conditions
38 * are met:
39 *
40 * * Redistributions of source code must retain the above copyright
41 * notice, this list of conditions and the following disclaimer.
42 * * Redistributions in binary form must reproduce the above copyright
43 * notice, this list of conditions and the following disclaimer in
44 * the documentation and/or other materials provided with the
45 * distribution.
46 * * Neither the name Intel Corporation nor the names of its
47 * contributors may be used to endorse or promote products derived
48 * from this software without specific prior written permission.
49 *
50 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
51 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
52 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
53 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
54 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
55 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
56 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
57 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
58 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
59 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
60 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
61 *
62 *****************************************************************************/
63 #include <linux/module.h>
64 #include <linux/pci.h>
65 #include <linux/pci-aspm.h>
66
67 #include "iwl-io.h"
68 #include "iwl-shared.h"
69 #include "iwl-trans.h"
70 #include "iwl-csr.h"
71 #include "iwl-cfg.h"
72 #include "iwl-drv.h"
73 #include "iwl-trans.h"
74
75 #define IWL_PCI_DEVICE(dev, subdev, cfg) \
76 .vendor = PCI_VENDOR_ID_INTEL, .device = (dev), \
77 .subvendor = PCI_ANY_ID, .subdevice = (subdev), \
78 .driver_data = (kernel_ulong_t)&(cfg)
79
80 /* Hardware specific file defines the PCI IDs table for that hardware module */
81 static DEFINE_PCI_DEVICE_TABLE(iwl_hw_card_ids) = {
82 {IWL_PCI_DEVICE(0x4232, 0x1201, iwl5100_agn_cfg)}, /* Mini Card */
83 {IWL_PCI_DEVICE(0x4232, 0x1301, iwl5100_agn_cfg)}, /* Half Mini Card */
84 {IWL_PCI_DEVICE(0x4232, 0x1204, iwl5100_agn_cfg)}, /* Mini Card */
85 {IWL_PCI_DEVICE(0x4232, 0x1304, iwl5100_agn_cfg)}, /* Half Mini Card */
86 {IWL_PCI_DEVICE(0x4232, 0x1205, iwl5100_bgn_cfg)}, /* Mini Card */
87 {IWL_PCI_DEVICE(0x4232, 0x1305, iwl5100_bgn_cfg)}, /* Half Mini Card */
88 {IWL_PCI_DEVICE(0x4232, 0x1206, iwl5100_abg_cfg)}, /* Mini Card */
89 {IWL_PCI_DEVICE(0x4232, 0x1306, iwl5100_abg_cfg)}, /* Half Mini Card */
90 {IWL_PCI_DEVICE(0x4232, 0x1221, iwl5100_agn_cfg)}, /* Mini Card */
91 {IWL_PCI_DEVICE(0x4232, 0x1321, iwl5100_agn_cfg)}, /* Half Mini Card */
92 {IWL_PCI_DEVICE(0x4232, 0x1224, iwl5100_agn_cfg)}, /* Mini Card */
93 {IWL_PCI_DEVICE(0x4232, 0x1324, iwl5100_agn_cfg)}, /* Half Mini Card */
94 {IWL_PCI_DEVICE(0x4232, 0x1225, iwl5100_bgn_cfg)}, /* Mini Card */
95 {IWL_PCI_DEVICE(0x4232, 0x1325, iwl5100_bgn_cfg)}, /* Half Mini Card */
96 {IWL_PCI_DEVICE(0x4232, 0x1226, iwl5100_abg_cfg)}, /* Mini Card */
97 {IWL_PCI_DEVICE(0x4232, 0x1326, iwl5100_abg_cfg)}, /* Half Mini Card */
98 {IWL_PCI_DEVICE(0x4237, 0x1211, iwl5100_agn_cfg)}, /* Mini Card */
99 {IWL_PCI_DEVICE(0x4237, 0x1311, iwl5100_agn_cfg)}, /* Half Mini Card */
100 {IWL_PCI_DEVICE(0x4237, 0x1214, iwl5100_agn_cfg)}, /* Mini Card */
101 {IWL_PCI_DEVICE(0x4237, 0x1314, iwl5100_agn_cfg)}, /* Half Mini Card */
102 {IWL_PCI_DEVICE(0x4237, 0x1215, iwl5100_bgn_cfg)}, /* Mini Card */
103 {IWL_PCI_DEVICE(0x4237, 0x1315, iwl5100_bgn_cfg)}, /* Half Mini Card */
104 {IWL_PCI_DEVICE(0x4237, 0x1216, iwl5100_abg_cfg)}, /* Mini Card */
105 {IWL_PCI_DEVICE(0x4237, 0x1316, iwl5100_abg_cfg)}, /* Half Mini Card */
106
107 /* 5300 Series WiFi */
108 {IWL_PCI_DEVICE(0x4235, 0x1021, iwl5300_agn_cfg)}, /* Mini Card */
109 {IWL_PCI_DEVICE(0x4235, 0x1121, iwl5300_agn_cfg)}, /* Half Mini Card */
110 {IWL_PCI_DEVICE(0x4235, 0x1024, iwl5300_agn_cfg)}, /* Mini Card */
111 {IWL_PCI_DEVICE(0x4235, 0x1124, iwl5300_agn_cfg)}, /* Half Mini Card */
112 {IWL_PCI_DEVICE(0x4235, 0x1001, iwl5300_agn_cfg)}, /* Mini Card */
113 {IWL_PCI_DEVICE(0x4235, 0x1101, iwl5300_agn_cfg)}, /* Half Mini Card */
114 {IWL_PCI_DEVICE(0x4235, 0x1004, iwl5300_agn_cfg)}, /* Mini Card */
115 {IWL_PCI_DEVICE(0x4235, 0x1104, iwl5300_agn_cfg)}, /* Half Mini Card */
116 {IWL_PCI_DEVICE(0x4236, 0x1011, iwl5300_agn_cfg)}, /* Mini Card */
117 {IWL_PCI_DEVICE(0x4236, 0x1111, iwl5300_agn_cfg)}, /* Half Mini Card */
118 {IWL_PCI_DEVICE(0x4236, 0x1014, iwl5300_agn_cfg)}, /* Mini Card */
119 {IWL_PCI_DEVICE(0x4236, 0x1114, iwl5300_agn_cfg)}, /* Half Mini Card */
120
121 /* 5350 Series WiFi/WiMax */
122 {IWL_PCI_DEVICE(0x423A, 0x1001, iwl5350_agn_cfg)}, /* Mini Card */
123 {IWL_PCI_DEVICE(0x423A, 0x1021, iwl5350_agn_cfg)}, /* Mini Card */
124 {IWL_PCI_DEVICE(0x423B, 0x1011, iwl5350_agn_cfg)}, /* Mini Card */
125
126 /* 5150 Series Wifi/WiMax */
127 {IWL_PCI_DEVICE(0x423C, 0x1201, iwl5150_agn_cfg)}, /* Mini Card */
128 {IWL_PCI_DEVICE(0x423C, 0x1301, iwl5150_agn_cfg)}, /* Half Mini Card */
129 {IWL_PCI_DEVICE(0x423C, 0x1206, iwl5150_abg_cfg)}, /* Mini Card */
130 {IWL_PCI_DEVICE(0x423C, 0x1306, iwl5150_abg_cfg)}, /* Half Mini Card */
131 {IWL_PCI_DEVICE(0x423C, 0x1221, iwl5150_agn_cfg)}, /* Mini Card */
132 {IWL_PCI_DEVICE(0x423C, 0x1321, iwl5150_agn_cfg)}, /* Half Mini Card */
133
134 {IWL_PCI_DEVICE(0x423D, 0x1211, iwl5150_agn_cfg)}, /* Mini Card */
135 {IWL_PCI_DEVICE(0x423D, 0x1311, iwl5150_agn_cfg)}, /* Half Mini Card */
136 {IWL_PCI_DEVICE(0x423D, 0x1216, iwl5150_abg_cfg)}, /* Mini Card */
137 {IWL_PCI_DEVICE(0x423D, 0x1316, iwl5150_abg_cfg)}, /* Half Mini Card */
138
139 /* 6x00 Series */
140 {IWL_PCI_DEVICE(0x422B, 0x1101, iwl6000_3agn_cfg)},
141 {IWL_PCI_DEVICE(0x422B, 0x1108, iwl6000_3agn_cfg)},
142 {IWL_PCI_DEVICE(0x422B, 0x1121, iwl6000_3agn_cfg)},
143 {IWL_PCI_DEVICE(0x422B, 0x1128, iwl6000_3agn_cfg)},
144 {IWL_PCI_DEVICE(0x422C, 0x1301, iwl6000i_2agn_cfg)},
145 {IWL_PCI_DEVICE(0x422C, 0x1306, iwl6000i_2abg_cfg)},
146 {IWL_PCI_DEVICE(0x422C, 0x1307, iwl6000i_2bg_cfg)},
147 {IWL_PCI_DEVICE(0x422C, 0x1321, iwl6000i_2agn_cfg)},
148 {IWL_PCI_DEVICE(0x422C, 0x1326, iwl6000i_2abg_cfg)},
149 {IWL_PCI_DEVICE(0x4238, 0x1111, iwl6000_3agn_cfg)},
150 {IWL_PCI_DEVICE(0x4238, 0x1118, iwl6000_3agn_cfg)},
151 {IWL_PCI_DEVICE(0x4239, 0x1311, iwl6000i_2agn_cfg)},
152 {IWL_PCI_DEVICE(0x4239, 0x1316, iwl6000i_2abg_cfg)},
153
154 /* 6x05 Series */
155 {IWL_PCI_DEVICE(0x0082, 0x1301, iwl6005_2agn_cfg)},
156 {IWL_PCI_DEVICE(0x0082, 0x1306, iwl6005_2abg_cfg)},
157 {IWL_PCI_DEVICE(0x0082, 0x1307, iwl6005_2bg_cfg)},
158 {IWL_PCI_DEVICE(0x0082, 0x1308, iwl6005_2agn_cfg)},
159 {IWL_PCI_DEVICE(0x0082, 0x1321, iwl6005_2agn_cfg)},
160 {IWL_PCI_DEVICE(0x0082, 0x1326, iwl6005_2abg_cfg)},
161 {IWL_PCI_DEVICE(0x0082, 0x1328, iwl6005_2agn_cfg)},
162 {IWL_PCI_DEVICE(0x0085, 0x1311, iwl6005_2agn_cfg)},
163 {IWL_PCI_DEVICE(0x0085, 0x1318, iwl6005_2agn_cfg)},
164 {IWL_PCI_DEVICE(0x0085, 0x1316, iwl6005_2abg_cfg)},
165 {IWL_PCI_DEVICE(0x0082, 0xC020, iwl6005_2agn_sff_cfg)},
166 {IWL_PCI_DEVICE(0x0085, 0xC220, iwl6005_2agn_sff_cfg)},
167 {IWL_PCI_DEVICE(0x0085, 0xC228, iwl6005_2agn_sff_cfg)},
168 {IWL_PCI_DEVICE(0x0082, 0x4820, iwl6005_2agn_d_cfg)},
169 {IWL_PCI_DEVICE(0x0082, 0x1304, iwl6005_2agn_mow1_cfg)},/* low 5GHz active */
170 {IWL_PCI_DEVICE(0x0082, 0x1305, iwl6005_2agn_mow2_cfg)},/* high 5GHz active */
171
172 /* 6x30 Series */
173 {IWL_PCI_DEVICE(0x008A, 0x5305, iwl1030_bgn_cfg)},
174 {IWL_PCI_DEVICE(0x008A, 0x5307, iwl1030_bg_cfg)},
175 {IWL_PCI_DEVICE(0x008A, 0x5325, iwl1030_bgn_cfg)},
176 {IWL_PCI_DEVICE(0x008A, 0x5327, iwl1030_bg_cfg)},
177 {IWL_PCI_DEVICE(0x008B, 0x5315, iwl1030_bgn_cfg)},
178 {IWL_PCI_DEVICE(0x008B, 0x5317, iwl1030_bg_cfg)},
179 {IWL_PCI_DEVICE(0x0090, 0x5211, iwl6030_2agn_cfg)},
180 {IWL_PCI_DEVICE(0x0090, 0x5215, iwl6030_2bgn_cfg)},
181 {IWL_PCI_DEVICE(0x0090, 0x5216, iwl6030_2abg_cfg)},
182 {IWL_PCI_DEVICE(0x0091, 0x5201, iwl6030_2agn_cfg)},
183 {IWL_PCI_DEVICE(0x0091, 0x5205, iwl6030_2bgn_cfg)},
184 {IWL_PCI_DEVICE(0x0091, 0x5206, iwl6030_2abg_cfg)},
185 {IWL_PCI_DEVICE(0x0091, 0x5207, iwl6030_2bg_cfg)},
186 {IWL_PCI_DEVICE(0x0091, 0x5221, iwl6030_2agn_cfg)},
187 {IWL_PCI_DEVICE(0x0091, 0x5225, iwl6030_2bgn_cfg)},
188 {IWL_PCI_DEVICE(0x0091, 0x5226, iwl6030_2abg_cfg)},
189
190 /* 6x50 WiFi/WiMax Series */
191 {IWL_PCI_DEVICE(0x0087, 0x1301, iwl6050_2agn_cfg)},
192 {IWL_PCI_DEVICE(0x0087, 0x1306, iwl6050_2abg_cfg)},
193 {IWL_PCI_DEVICE(0x0087, 0x1321, iwl6050_2agn_cfg)},
194 {IWL_PCI_DEVICE(0x0087, 0x1326, iwl6050_2abg_cfg)},
195 {IWL_PCI_DEVICE(0x0089, 0x1311, iwl6050_2agn_cfg)},
196 {IWL_PCI_DEVICE(0x0089, 0x1316, iwl6050_2abg_cfg)},
197
198 /* 6150 WiFi/WiMax Series */
199 {IWL_PCI_DEVICE(0x0885, 0x1305, iwl6150_bgn_cfg)},
200 {IWL_PCI_DEVICE(0x0885, 0x1307, iwl6150_bg_cfg)},
201 {IWL_PCI_DEVICE(0x0885, 0x1325, iwl6150_bgn_cfg)},
202 {IWL_PCI_DEVICE(0x0885, 0x1327, iwl6150_bg_cfg)},
203 {IWL_PCI_DEVICE(0x0886, 0x1315, iwl6150_bgn_cfg)},
204 {IWL_PCI_DEVICE(0x0886, 0x1317, iwl6150_bg_cfg)},
205
206 /* 1000 Series WiFi */
207 {IWL_PCI_DEVICE(0x0083, 0x1205, iwl1000_bgn_cfg)},
208 {IWL_PCI_DEVICE(0x0083, 0x1305, iwl1000_bgn_cfg)},
209 {IWL_PCI_DEVICE(0x0083, 0x1225, iwl1000_bgn_cfg)},
210 {IWL_PCI_DEVICE(0x0083, 0x1325, iwl1000_bgn_cfg)},
211 {IWL_PCI_DEVICE(0x0084, 0x1215, iwl1000_bgn_cfg)},
212 {IWL_PCI_DEVICE(0x0084, 0x1315, iwl1000_bgn_cfg)},
213 {IWL_PCI_DEVICE(0x0083, 0x1206, iwl1000_bg_cfg)},
214 {IWL_PCI_DEVICE(0x0083, 0x1306, iwl1000_bg_cfg)},
215 {IWL_PCI_DEVICE(0x0083, 0x1226, iwl1000_bg_cfg)},
216 {IWL_PCI_DEVICE(0x0083, 0x1326, iwl1000_bg_cfg)},
217 {IWL_PCI_DEVICE(0x0084, 0x1216, iwl1000_bg_cfg)},
218 {IWL_PCI_DEVICE(0x0084, 0x1316, iwl1000_bg_cfg)},
219
220 /* 100 Series WiFi */
221 {IWL_PCI_DEVICE(0x08AE, 0x1005, iwl100_bgn_cfg)},
222 {IWL_PCI_DEVICE(0x08AE, 0x1007, iwl100_bg_cfg)},
223 {IWL_PCI_DEVICE(0x08AF, 0x1015, iwl100_bgn_cfg)},
224 {IWL_PCI_DEVICE(0x08AF, 0x1017, iwl100_bg_cfg)},
225 {IWL_PCI_DEVICE(0x08AE, 0x1025, iwl100_bgn_cfg)},
226 {IWL_PCI_DEVICE(0x08AE, 0x1027, iwl100_bg_cfg)},
227
228 /* 130 Series WiFi */
229 {IWL_PCI_DEVICE(0x0896, 0x5005, iwl130_bgn_cfg)},
230 {IWL_PCI_DEVICE(0x0896, 0x5007, iwl130_bg_cfg)},
231 {IWL_PCI_DEVICE(0x0897, 0x5015, iwl130_bgn_cfg)},
232 {IWL_PCI_DEVICE(0x0897, 0x5017, iwl130_bg_cfg)},
233 {IWL_PCI_DEVICE(0x0896, 0x5025, iwl130_bgn_cfg)},
234 {IWL_PCI_DEVICE(0x0896, 0x5027, iwl130_bg_cfg)},
235
236 /* 2x00 Series */
237 {IWL_PCI_DEVICE(0x0890, 0x4022, iwl2000_2bgn_cfg)},
238 {IWL_PCI_DEVICE(0x0891, 0x4222, iwl2000_2bgn_cfg)},
239 {IWL_PCI_DEVICE(0x0890, 0x4422, iwl2000_2bgn_cfg)},
240 {IWL_PCI_DEVICE(0x0890, 0x4822, iwl2000_2bgn_d_cfg)},
241
242 /* 2x30 Series */
243 {IWL_PCI_DEVICE(0x0887, 0x4062, iwl2030_2bgn_cfg)},
244 {IWL_PCI_DEVICE(0x0888, 0x4262, iwl2030_2bgn_cfg)},
245 {IWL_PCI_DEVICE(0x0887, 0x4462, iwl2030_2bgn_cfg)},
246
247 /* 6x35 Series */
248 {IWL_PCI_DEVICE(0x088E, 0x4060, iwl6035_2agn_cfg)},
249 {IWL_PCI_DEVICE(0x088E, 0x406A, iwl6035_2agn_sff_cfg)},
250 {IWL_PCI_DEVICE(0x088F, 0x4260, iwl6035_2agn_cfg)},
251 {IWL_PCI_DEVICE(0x088F, 0x426A, iwl6035_2agn_sff_cfg)},
252 {IWL_PCI_DEVICE(0x088E, 0x4460, iwl6035_2agn_cfg)},
253 {IWL_PCI_DEVICE(0x088E, 0x446A, iwl6035_2agn_sff_cfg)},
254 {IWL_PCI_DEVICE(0x088E, 0x4860, iwl6035_2agn_cfg)},
255
256 /* 105 Series */
257 {IWL_PCI_DEVICE(0x0894, 0x0022, iwl105_bgn_cfg)},
258 {IWL_PCI_DEVICE(0x0895, 0x0222, iwl105_bgn_cfg)},
259 {IWL_PCI_DEVICE(0x0894, 0x0422, iwl105_bgn_cfg)},
260 {IWL_PCI_DEVICE(0x0894, 0x0822, iwl105_bgn_d_cfg)},
261
262 /* 135 Series */
263 {IWL_PCI_DEVICE(0x0892, 0x0062, iwl135_bgn_cfg)},
264 {IWL_PCI_DEVICE(0x0893, 0x0262, iwl135_bgn_cfg)},
265 {IWL_PCI_DEVICE(0x0892, 0x0462, iwl135_bgn_cfg)},
266
267 {0}
268 };
269 MODULE_DEVICE_TABLE(pci, iwl_hw_card_ids);
270
271 /* PCI registers */
272 #define PCI_CFG_RETRY_TIMEOUT 0x041
273
iwl_pci_probe(struct pci_dev * pdev,const struct pci_device_id * ent)274 static int iwl_pci_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
275 {
276 const struct iwl_cfg *cfg = (struct iwl_cfg *)(ent->driver_data);
277 struct iwl_shared *shrd;
278 struct iwl_trans *iwl_trans;
279 int err;
280
281 shrd = kzalloc(sizeof(*iwl_trans->shrd), GFP_KERNEL);
282 if (!shrd) {
283 dev_printk(KERN_ERR, &pdev->dev,
284 "Couldn't allocate iwl_shared");
285 err = -ENOMEM;
286 goto out_free_bus;
287 }
288
289 #ifdef CONFIG_IWLWIFI_IDI
290 iwl_trans = iwl_trans_idi_alloc(shrd, pdev, ent);
291 #else
292 iwl_trans = iwl_trans_pcie_alloc(shrd, pdev, ent);
293 #endif
294 if (iwl_trans == NULL) {
295 err = -ENOMEM;
296 goto out_free_bus;
297 }
298
299 shrd->trans = iwl_trans;
300 pci_set_drvdata(pdev, iwl_trans);
301
302 err = iwl_drv_start(shrd, iwl_trans, cfg);
303 if (err)
304 goto out_free_trans;
305
306 return 0;
307
308 out_free_trans:
309 iwl_trans_free(iwl_trans);
310 pci_set_drvdata(pdev, NULL);
311 out_free_bus:
312 kfree(shrd);
313 return err;
314 }
315
iwl_pci_remove(struct pci_dev * pdev)316 static void __devexit iwl_pci_remove(struct pci_dev *pdev)
317 {
318 struct iwl_trans *iwl_trans = pci_get_drvdata(pdev);
319 struct iwl_shared *shrd = iwl_trans->shrd;
320
321 iwl_drv_stop(shrd);
322 iwl_trans_free(shrd->trans);
323
324 pci_set_drvdata(pdev, NULL);
325
326 kfree(shrd);
327 }
328
329 #ifdef CONFIG_PM_SLEEP
330
iwl_pci_suspend(struct device * device)331 static int iwl_pci_suspend(struct device *device)
332 {
333 struct pci_dev *pdev = to_pci_dev(device);
334 struct iwl_trans *iwl_trans = pci_get_drvdata(pdev);
335
336 /* Before you put code here, think about WoWLAN. You cannot check here
337 * whether WoWLAN is enabled or not, and your code will run even if
338 * WoWLAN is enabled - don't kill the NIC, someone may need it in Sx.
339 */
340
341 return iwl_trans_suspend(iwl_trans);
342 }
343
iwl_pci_resume(struct device * device)344 static int iwl_pci_resume(struct device *device)
345 {
346 struct pci_dev *pdev = to_pci_dev(device);
347 struct iwl_trans *iwl_trans = pci_get_drvdata(pdev);
348
349 /* Before you put code here, think about WoWLAN. You cannot check here
350 * whether WoWLAN is enabled or not, and your code will run even if
351 * WoWLAN is enabled - the NIC may be alive.
352 */
353
354 /*
355 * We disable the RETRY_TIMEOUT register (0x41) to keep
356 * PCI Tx retries from interfering with C3 CPU state.
357 */
358 pci_write_config_byte(pdev, PCI_CFG_RETRY_TIMEOUT, 0x00);
359
360 return iwl_trans_resume(iwl_trans);
361 }
362
363 static SIMPLE_DEV_PM_OPS(iwl_dev_pm_ops, iwl_pci_suspend, iwl_pci_resume);
364
365 #define IWL_PM_OPS (&iwl_dev_pm_ops)
366
367 #else
368
369 #define IWL_PM_OPS NULL
370
371 #endif
372
373 static struct pci_driver iwl_pci_driver = {
374 .name = DRV_NAME,
375 .id_table = iwl_hw_card_ids,
376 .probe = iwl_pci_probe,
377 .remove = __devexit_p(iwl_pci_remove),
378 .driver.pm = IWL_PM_OPS,
379 };
380
iwl_pci_register_driver(void)381 int __must_check iwl_pci_register_driver(void)
382 {
383 int ret;
384 ret = pci_register_driver(&iwl_pci_driver);
385 if (ret)
386 pr_err("Unable to initialize PCI module\n");
387
388 return ret;
389 }
390
iwl_pci_unregister_driver(void)391 void iwl_pci_unregister_driver(void)
392 {
393 pci_unregister_driver(&iwl_pci_driver);
394 }
395