1 /******************************************************************************
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.
8 * Copyright(c) 2007 - 2011 Intel Corporation. All rights reserved.
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.
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.
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,
24 * The full GNU General Public License is included in this distribution
25 * in the file called LICENSE.GPL.
27 * Contact Information:
28 * Intel Linux Wireless <ilw@linux.intel.com>
29 * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
33 * Copyright(c) 2005 - 2011 Intel Corporation. All rights reserved.
34 * All rights reserved.
36 * Redistribution and use in source and binary forms, with or without
37 * modification, are permitted provided that the following conditions
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
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.
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.
62 *****************************************************************************/
63 #include <linux/module.h>
64 #include <linux/pci.h>
65 #include <linux/pci-aspm.h>
69 #include "iwl-shared.h"
70 #include "iwl-trans.h"
75 #define PCI_CFG_RETRY_TIMEOUT 0x041
76 #define PCI_CFG_LINK_CTRL_VAL_L0S_EN 0x01
77 #define PCI_CFG_LINK_CTRL_VAL_L1_EN 0x02
80 /* basic pci-network driver stuff */
81 struct pci_dev
*pci_dev
;
83 /* pci hardware address support */
84 void __iomem
*hw_base
;
87 #define IWL_BUS_GET_PCI_BUS(_iwl_bus) \
88 ((struct iwl_pci_bus *) ((_iwl_bus)->bus_specific))
90 #define IWL_BUS_GET_PCI_DEV(_iwl_bus) \
91 ((IWL_BUS_GET_PCI_BUS(_iwl_bus))->pci_dev)
93 static u16
iwl_pciexp_link_ctrl(struct iwl_bus
*bus
)
98 struct pci_dev
*pci_dev
= IWL_BUS_GET_PCI_DEV(bus
);
100 pos
= pci_pcie_cap(pci_dev
);
101 pci_read_config_word(pci_dev
, pos
+ PCI_EXP_LNKCTL
, &pci_lnk_ctl
);
105 static bool iwl_pci_is_pm_supported(struct iwl_bus
*bus
)
107 u16 lctl
= iwl_pciexp_link_ctrl(bus
);
109 return !(lctl
& PCI_CFG_LINK_CTRL_VAL_L0S_EN
);
112 static void iwl_pci_apm_config(struct iwl_bus
*bus
)
115 * HW bug W/A for instability in PCIe bus L0S->L1 transition.
116 * Check if BIOS (or OS) enabled L1-ASPM on this device.
117 * If so (likely), disable L0S, so device moves directly L0->L1;
118 * costs negligible amount of power savings.
119 * If not (unlikely), enable L0S, so there is at least some
120 * power savings, even without L1.
122 u16 lctl
= iwl_pciexp_link_ctrl(bus
);
124 if ((lctl
& PCI_CFG_LINK_CTRL_VAL_L1_EN
) ==
125 PCI_CFG_LINK_CTRL_VAL_L1_EN
) {
126 /* L1-ASPM enabled; disable(!) L0S */
127 iwl_set_bit(bus
, CSR_GIO_REG
,
128 CSR_GIO_REG_VAL_L0S_ENABLED
);
129 dev_printk(KERN_INFO
, bus
->dev
, "L1 Enabled; Disabling L0S\n");
131 /* L1-ASPM disabled; enable(!) L0S */
132 iwl_clear_bit(bus
, CSR_GIO_REG
,
133 CSR_GIO_REG_VAL_L0S_ENABLED
);
134 dev_printk(KERN_INFO
, bus
->dev
, "L1 Disabled; Enabling L0S\n");
138 static void iwl_pci_get_hw_id(struct iwl_bus
*bus
, char buf
[],
141 struct pci_dev
*pci_dev
= IWL_BUS_GET_PCI_DEV(bus
);
143 snprintf(buf
, buf_len
, "PCI ID: 0x%04X:0x%04X", pci_dev
->device
,
144 pci_dev
->subsystem_device
);
147 static void iwl_pci_write8(struct iwl_bus
*bus
, u32 ofs
, u8 val
)
149 iowrite8(val
, IWL_BUS_GET_PCI_BUS(bus
)->hw_base
+ ofs
);
152 static void iwl_pci_write32(struct iwl_bus
*bus
, u32 ofs
, u32 val
)
154 iowrite32(val
, IWL_BUS_GET_PCI_BUS(bus
)->hw_base
+ ofs
);
157 static u32
iwl_pci_read32(struct iwl_bus
*bus
, u32 ofs
)
159 u32 val
= ioread32(IWL_BUS_GET_PCI_BUS(bus
)->hw_base
+ ofs
);
163 static const struct iwl_bus_ops bus_ops_pci
= {
164 .get_pm_support
= iwl_pci_is_pm_supported
,
165 .apm_config
= iwl_pci_apm_config
,
166 .get_hw_id
= iwl_pci_get_hw_id
,
167 .write8
= iwl_pci_write8
,
168 .write32
= iwl_pci_write32
,
169 .read32
= iwl_pci_read32
,
172 #define IWL_PCI_DEVICE(dev, subdev, cfg) \
173 .vendor = PCI_VENDOR_ID_INTEL, .device = (dev), \
174 .subvendor = PCI_ANY_ID, .subdevice = (subdev), \
175 .driver_data = (kernel_ulong_t)&(cfg)
177 /* Hardware specific file defines the PCI IDs table for that hardware module */
178 static DEFINE_PCI_DEVICE_TABLE(iwl_hw_card_ids
) = {
179 {IWL_PCI_DEVICE(0x4232, 0x1201, iwl5100_agn_cfg
)}, /* Mini Card */
180 {IWL_PCI_DEVICE(0x4232, 0x1301, iwl5100_agn_cfg
)}, /* Half Mini Card */
181 {IWL_PCI_DEVICE(0x4232, 0x1204, iwl5100_agn_cfg
)}, /* Mini Card */
182 {IWL_PCI_DEVICE(0x4232, 0x1304, iwl5100_agn_cfg
)}, /* Half Mini Card */
183 {IWL_PCI_DEVICE(0x4232, 0x1205, iwl5100_bgn_cfg
)}, /* Mini Card */
184 {IWL_PCI_DEVICE(0x4232, 0x1305, iwl5100_bgn_cfg
)}, /* Half Mini Card */
185 {IWL_PCI_DEVICE(0x4232, 0x1206, iwl5100_abg_cfg
)}, /* Mini Card */
186 {IWL_PCI_DEVICE(0x4232, 0x1306, iwl5100_abg_cfg
)}, /* Half Mini Card */
187 {IWL_PCI_DEVICE(0x4232, 0x1221, iwl5100_agn_cfg
)}, /* Mini Card */
188 {IWL_PCI_DEVICE(0x4232, 0x1321, iwl5100_agn_cfg
)}, /* Half Mini Card */
189 {IWL_PCI_DEVICE(0x4232, 0x1224, iwl5100_agn_cfg
)}, /* Mini Card */
190 {IWL_PCI_DEVICE(0x4232, 0x1324, iwl5100_agn_cfg
)}, /* Half Mini Card */
191 {IWL_PCI_DEVICE(0x4232, 0x1225, iwl5100_bgn_cfg
)}, /* Mini Card */
192 {IWL_PCI_DEVICE(0x4232, 0x1325, iwl5100_bgn_cfg
)}, /* Half Mini Card */
193 {IWL_PCI_DEVICE(0x4232, 0x1226, iwl5100_abg_cfg
)}, /* Mini Card */
194 {IWL_PCI_DEVICE(0x4232, 0x1326, iwl5100_abg_cfg
)}, /* Half Mini Card */
195 {IWL_PCI_DEVICE(0x4237, 0x1211, iwl5100_agn_cfg
)}, /* Mini Card */
196 {IWL_PCI_DEVICE(0x4237, 0x1311, iwl5100_agn_cfg
)}, /* Half Mini Card */
197 {IWL_PCI_DEVICE(0x4237, 0x1214, iwl5100_agn_cfg
)}, /* Mini Card */
198 {IWL_PCI_DEVICE(0x4237, 0x1314, iwl5100_agn_cfg
)}, /* Half Mini Card */
199 {IWL_PCI_DEVICE(0x4237, 0x1215, iwl5100_bgn_cfg
)}, /* Mini Card */
200 {IWL_PCI_DEVICE(0x4237, 0x1315, iwl5100_bgn_cfg
)}, /* Half Mini Card */
201 {IWL_PCI_DEVICE(0x4237, 0x1216, iwl5100_abg_cfg
)}, /* Mini Card */
202 {IWL_PCI_DEVICE(0x4237, 0x1316, iwl5100_abg_cfg
)}, /* Half Mini Card */
204 /* 5300 Series WiFi */
205 {IWL_PCI_DEVICE(0x4235, 0x1021, iwl5300_agn_cfg
)}, /* Mini Card */
206 {IWL_PCI_DEVICE(0x4235, 0x1121, iwl5300_agn_cfg
)}, /* Half Mini Card */
207 {IWL_PCI_DEVICE(0x4235, 0x1024, iwl5300_agn_cfg
)}, /* Mini Card */
208 {IWL_PCI_DEVICE(0x4235, 0x1124, iwl5300_agn_cfg
)}, /* Half Mini Card */
209 {IWL_PCI_DEVICE(0x4235, 0x1001, iwl5300_agn_cfg
)}, /* Mini Card */
210 {IWL_PCI_DEVICE(0x4235, 0x1101, iwl5300_agn_cfg
)}, /* Half Mini Card */
211 {IWL_PCI_DEVICE(0x4235, 0x1004, iwl5300_agn_cfg
)}, /* Mini Card */
212 {IWL_PCI_DEVICE(0x4235, 0x1104, iwl5300_agn_cfg
)}, /* Half Mini Card */
213 {IWL_PCI_DEVICE(0x4236, 0x1011, iwl5300_agn_cfg
)}, /* Mini Card */
214 {IWL_PCI_DEVICE(0x4236, 0x1111, iwl5300_agn_cfg
)}, /* Half Mini Card */
215 {IWL_PCI_DEVICE(0x4236, 0x1014, iwl5300_agn_cfg
)}, /* Mini Card */
216 {IWL_PCI_DEVICE(0x4236, 0x1114, iwl5300_agn_cfg
)}, /* Half Mini Card */
218 /* 5350 Series WiFi/WiMax */
219 {IWL_PCI_DEVICE(0x423A, 0x1001, iwl5350_agn_cfg
)}, /* Mini Card */
220 {IWL_PCI_DEVICE(0x423A, 0x1021, iwl5350_agn_cfg
)}, /* Mini Card */
221 {IWL_PCI_DEVICE(0x423B, 0x1011, iwl5350_agn_cfg
)}, /* Mini Card */
223 /* 5150 Series Wifi/WiMax */
224 {IWL_PCI_DEVICE(0x423C, 0x1201, iwl5150_agn_cfg
)}, /* Mini Card */
225 {IWL_PCI_DEVICE(0x423C, 0x1301, iwl5150_agn_cfg
)}, /* Half Mini Card */
226 {IWL_PCI_DEVICE(0x423C, 0x1206, iwl5150_abg_cfg
)}, /* Mini Card */
227 {IWL_PCI_DEVICE(0x423C, 0x1306, iwl5150_abg_cfg
)}, /* Half Mini Card */
228 {IWL_PCI_DEVICE(0x423C, 0x1221, iwl5150_agn_cfg
)}, /* Mini Card */
229 {IWL_PCI_DEVICE(0x423C, 0x1321, iwl5150_agn_cfg
)}, /* Half Mini Card */
231 {IWL_PCI_DEVICE(0x423D, 0x1211, iwl5150_agn_cfg
)}, /* Mini Card */
232 {IWL_PCI_DEVICE(0x423D, 0x1311, iwl5150_agn_cfg
)}, /* Half Mini Card */
233 {IWL_PCI_DEVICE(0x423D, 0x1216, iwl5150_abg_cfg
)}, /* Mini Card */
234 {IWL_PCI_DEVICE(0x423D, 0x1316, iwl5150_abg_cfg
)}, /* Half Mini Card */
237 {IWL_PCI_DEVICE(0x422B, 0x1101, iwl6000_3agn_cfg
)},
238 {IWL_PCI_DEVICE(0x422B, 0x1121, iwl6000_3agn_cfg
)},
239 {IWL_PCI_DEVICE(0x422C, 0x1301, iwl6000i_2agn_cfg
)},
240 {IWL_PCI_DEVICE(0x422C, 0x1306, iwl6000i_2abg_cfg
)},
241 {IWL_PCI_DEVICE(0x422C, 0x1307, iwl6000i_2bg_cfg
)},
242 {IWL_PCI_DEVICE(0x422C, 0x1321, iwl6000i_2agn_cfg
)},
243 {IWL_PCI_DEVICE(0x422C, 0x1326, iwl6000i_2abg_cfg
)},
244 {IWL_PCI_DEVICE(0x4238, 0x1111, iwl6000_3agn_cfg
)},
245 {IWL_PCI_DEVICE(0x4239, 0x1311, iwl6000i_2agn_cfg
)},
246 {IWL_PCI_DEVICE(0x4239, 0x1316, iwl6000i_2abg_cfg
)},
249 {IWL_PCI_DEVICE(0x0082, 0x1301, iwl6005_2agn_cfg
)},
250 {IWL_PCI_DEVICE(0x0082, 0x1306, iwl6005_2abg_cfg
)},
251 {IWL_PCI_DEVICE(0x0082, 0x1307, iwl6005_2bg_cfg
)},
252 {IWL_PCI_DEVICE(0x0082, 0x1321, iwl6005_2agn_cfg
)},
253 {IWL_PCI_DEVICE(0x0082, 0x1326, iwl6005_2abg_cfg
)},
254 {IWL_PCI_DEVICE(0x0085, 0x1311, iwl6005_2agn_cfg
)},
255 {IWL_PCI_DEVICE(0x0085, 0x1316, iwl6005_2abg_cfg
)},
256 {IWL_PCI_DEVICE(0x0082, 0xC020, iwl6005_2agn_sff_cfg
)},
257 {IWL_PCI_DEVICE(0x0085, 0xC220, iwl6005_2agn_sff_cfg
)},
258 {IWL_PCI_DEVICE(0x0082, 0x1341, iwl6005_2agn_d_cfg
)},
259 {IWL_PCI_DEVICE(0x0082, 0x1304, iwl6005_2agn_cfg
)},/* low 5GHz active */
260 {IWL_PCI_DEVICE(0x0082, 0x1305, iwl6005_2agn_cfg
)},/* high 5GHz active */
263 {IWL_PCI_DEVICE(0x008A, 0x5305, iwl1030_bgn_cfg
)},
264 {IWL_PCI_DEVICE(0x008A, 0x5307, iwl1030_bg_cfg
)},
265 {IWL_PCI_DEVICE(0x008A, 0x5325, iwl1030_bgn_cfg
)},
266 {IWL_PCI_DEVICE(0x008A, 0x5327, iwl1030_bg_cfg
)},
267 {IWL_PCI_DEVICE(0x008B, 0x5315, iwl1030_bgn_cfg
)},
268 {IWL_PCI_DEVICE(0x008B, 0x5317, iwl1030_bg_cfg
)},
269 {IWL_PCI_DEVICE(0x0090, 0x5211, iwl6030_2agn_cfg
)},
270 {IWL_PCI_DEVICE(0x0090, 0x5215, iwl6030_2bgn_cfg
)},
271 {IWL_PCI_DEVICE(0x0090, 0x5216, iwl6030_2abg_cfg
)},
272 {IWL_PCI_DEVICE(0x0091, 0x5201, iwl6030_2agn_cfg
)},
273 {IWL_PCI_DEVICE(0x0091, 0x5205, iwl6030_2bgn_cfg
)},
274 {IWL_PCI_DEVICE(0x0091, 0x5206, iwl6030_2abg_cfg
)},
275 {IWL_PCI_DEVICE(0x0091, 0x5207, iwl6030_2bg_cfg
)},
276 {IWL_PCI_DEVICE(0x0091, 0x5221, iwl6030_2agn_cfg
)},
277 {IWL_PCI_DEVICE(0x0091, 0x5225, iwl6030_2bgn_cfg
)},
278 {IWL_PCI_DEVICE(0x0091, 0x5226, iwl6030_2abg_cfg
)},
280 /* 6x50 WiFi/WiMax Series */
281 {IWL_PCI_DEVICE(0x0087, 0x1301, iwl6050_2agn_cfg
)},
282 {IWL_PCI_DEVICE(0x0087, 0x1306, iwl6050_2abg_cfg
)},
283 {IWL_PCI_DEVICE(0x0087, 0x1321, iwl6050_2agn_cfg
)},
284 {IWL_PCI_DEVICE(0x0087, 0x1326, iwl6050_2abg_cfg
)},
285 {IWL_PCI_DEVICE(0x0089, 0x1311, iwl6050_2agn_cfg
)},
286 {IWL_PCI_DEVICE(0x0089, 0x1316, iwl6050_2abg_cfg
)},
288 /* 6150 WiFi/WiMax Series */
289 {IWL_PCI_DEVICE(0x0885, 0x1305, iwl6150_bgn_cfg
)},
290 {IWL_PCI_DEVICE(0x0885, 0x1307, iwl6150_bg_cfg
)},
291 {IWL_PCI_DEVICE(0x0885, 0x1325, iwl6150_bgn_cfg
)},
292 {IWL_PCI_DEVICE(0x0885, 0x1327, iwl6150_bg_cfg
)},
293 {IWL_PCI_DEVICE(0x0886, 0x1315, iwl6150_bgn_cfg
)},
294 {IWL_PCI_DEVICE(0x0886, 0x1317, iwl6150_bg_cfg
)},
296 /* 1000 Series WiFi */
297 {IWL_PCI_DEVICE(0x0083, 0x1205, iwl1000_bgn_cfg
)},
298 {IWL_PCI_DEVICE(0x0083, 0x1305, iwl1000_bgn_cfg
)},
299 {IWL_PCI_DEVICE(0x0083, 0x1225, iwl1000_bgn_cfg
)},
300 {IWL_PCI_DEVICE(0x0083, 0x1325, iwl1000_bgn_cfg
)},
301 {IWL_PCI_DEVICE(0x0084, 0x1215, iwl1000_bgn_cfg
)},
302 {IWL_PCI_DEVICE(0x0084, 0x1315, iwl1000_bgn_cfg
)},
303 {IWL_PCI_DEVICE(0x0083, 0x1206, iwl1000_bg_cfg
)},
304 {IWL_PCI_DEVICE(0x0083, 0x1306, iwl1000_bg_cfg
)},
305 {IWL_PCI_DEVICE(0x0083, 0x1226, iwl1000_bg_cfg
)},
306 {IWL_PCI_DEVICE(0x0083, 0x1326, iwl1000_bg_cfg
)},
307 {IWL_PCI_DEVICE(0x0084, 0x1216, iwl1000_bg_cfg
)},
308 {IWL_PCI_DEVICE(0x0084, 0x1316, iwl1000_bg_cfg
)},
310 /* 100 Series WiFi */
311 {IWL_PCI_DEVICE(0x08AE, 0x1005, iwl100_bgn_cfg
)},
312 {IWL_PCI_DEVICE(0x08AE, 0x1007, iwl100_bg_cfg
)},
313 {IWL_PCI_DEVICE(0x08AF, 0x1015, iwl100_bgn_cfg
)},
314 {IWL_PCI_DEVICE(0x08AF, 0x1017, iwl100_bg_cfg
)},
315 {IWL_PCI_DEVICE(0x08AE, 0x1025, iwl100_bgn_cfg
)},
316 {IWL_PCI_DEVICE(0x08AE, 0x1027, iwl100_bg_cfg
)},
318 /* 130 Series WiFi */
319 {IWL_PCI_DEVICE(0x0896, 0x5005, iwl130_bgn_cfg
)},
320 {IWL_PCI_DEVICE(0x0896, 0x5007, iwl130_bg_cfg
)},
321 {IWL_PCI_DEVICE(0x0897, 0x5015, iwl130_bgn_cfg
)},
322 {IWL_PCI_DEVICE(0x0897, 0x5017, iwl130_bg_cfg
)},
323 {IWL_PCI_DEVICE(0x0896, 0x5025, iwl130_bgn_cfg
)},
324 {IWL_PCI_DEVICE(0x0896, 0x5027, iwl130_bg_cfg
)},
327 {IWL_PCI_DEVICE(0x0890, 0x4022, iwl2000_2bgn_cfg
)},
328 {IWL_PCI_DEVICE(0x0891, 0x4222, iwl2000_2bgn_cfg
)},
329 {IWL_PCI_DEVICE(0x0890, 0x4422, iwl2000_2bgn_cfg
)},
330 {IWL_PCI_DEVICE(0x0890, 0x4822, iwl2000_2bgn_d_cfg
)},
333 {IWL_PCI_DEVICE(0x0887, 0x4062, iwl2030_2bgn_cfg
)},
334 {IWL_PCI_DEVICE(0x0888, 0x4262, iwl2030_2bgn_cfg
)},
335 {IWL_PCI_DEVICE(0x0887, 0x4462, iwl2030_2bgn_cfg
)},
338 {IWL_PCI_DEVICE(0x088E, 0x4060, iwl6035_2agn_cfg
)},
339 {IWL_PCI_DEVICE(0x088F, 0x4260, iwl6035_2agn_cfg
)},
340 {IWL_PCI_DEVICE(0x088E, 0x4460, iwl6035_2agn_cfg
)},
343 {IWL_PCI_DEVICE(0x0894, 0x0022, iwl105_bgn_cfg
)},
344 {IWL_PCI_DEVICE(0x0895, 0x0222, iwl105_bgn_cfg
)},
345 {IWL_PCI_DEVICE(0x0894, 0x0422, iwl105_bgn_cfg
)},
346 {IWL_PCI_DEVICE(0x0894, 0x0822, iwl105_bgn_d_cfg
)},
349 {IWL_PCI_DEVICE(0x0892, 0x0062, iwl135_bgn_cfg
)},
350 {IWL_PCI_DEVICE(0x0893, 0x0262, iwl135_bgn_cfg
)},
351 {IWL_PCI_DEVICE(0x0892, 0x0462, iwl135_bgn_cfg
)},
355 MODULE_DEVICE_TABLE(pci
, iwl_hw_card_ids
);
357 static int iwl_pci_probe(struct pci_dev
*pdev
, const struct pci_device_id
*ent
)
359 struct iwl_cfg
*cfg
= (struct iwl_cfg
*)(ent
->driver_data
);
361 struct iwl_pci_bus
*pci_bus
;
365 bus
= kzalloc(sizeof(*bus
) + sizeof(*pci_bus
), GFP_KERNEL
);
367 dev_printk(KERN_ERR
, &pdev
->dev
,
368 "Couldn't allocate iwl_pci_bus");
373 pci_bus
= IWL_BUS_GET_PCI_BUS(bus
);
374 pci_bus
->pci_dev
= pdev
;
376 pci_set_drvdata(pdev
, bus
);
378 /* W/A - seems to solve weird behavior. We need to remove this if we
379 * don't want to stay in L1 all the time. This wastes a lot of power */
380 pci_disable_link_state(pdev
, PCIE_LINK_STATE_L0S
| PCIE_LINK_STATE_L1
|
381 PCIE_LINK_STATE_CLKPM
);
383 if (pci_enable_device(pdev
)) {
388 pci_set_master(pdev
);
390 err
= pci_set_dma_mask(pdev
, DMA_BIT_MASK(36));
392 err
= pci_set_consistent_dma_mask(pdev
, DMA_BIT_MASK(36));
394 err
= pci_set_dma_mask(pdev
, DMA_BIT_MASK(32));
396 err
= pci_set_consistent_dma_mask(pdev
,
398 /* both attempts failed: */
400 dev_printk(KERN_ERR
, bus
->dev
,
401 "No suitable DMA available.\n");
402 goto out_pci_disable_device
;
406 err
= pci_request_regions(pdev
, DRV_NAME
);
408 dev_printk(KERN_ERR
, bus
->dev
, "pci_request_regions failed");
409 goto out_pci_disable_device
;
412 pci_bus
->hw_base
= pci_iomap(pdev
, 0, 0);
413 if (!pci_bus
->hw_base
) {
414 dev_printk(KERN_ERR
, bus
->dev
, "pci_iomap failed");
416 goto out_pci_release_regions
;
419 dev_printk(KERN_INFO
, &pdev
->dev
,
420 "pci_resource_len = 0x%08llx\n",
421 (unsigned long long) pci_resource_len(pdev
, 0));
422 dev_printk(KERN_INFO
, &pdev
->dev
,
423 "pci_resource_base = %p\n", pci_bus
->hw_base
);
425 dev_printk(KERN_INFO
, &pdev
->dev
,
426 "HW Revision ID = 0x%X\n", pdev
->revision
);
428 /* We disable the RETRY_TIMEOUT register (0x41) to keep
429 * PCI Tx retries from interfering with C3 CPU state */
430 pci_write_config_byte(pdev
, PCI_CFG_RETRY_TIMEOUT
, 0x00);
432 err
= pci_enable_msi(pdev
);
434 dev_printk(KERN_ERR
, &pdev
->dev
,
435 "pci_enable_msi failed(0X%x)", err
);
437 /* TODO: Move this away, not needed if not MSI */
438 /* enable rfkill interrupt: hw bug w/a */
439 pci_read_config_word(pdev
, PCI_COMMAND
, &pci_cmd
);
440 if (pci_cmd
& PCI_COMMAND_INTX_DISABLE
) {
441 pci_cmd
&= ~PCI_COMMAND_INTX_DISABLE
;
442 pci_write_config_word(pdev
, PCI_COMMAND
, pci_cmd
);
445 bus
->dev
= &pdev
->dev
;
446 bus
->irq
= pdev
->irq
;
447 bus
->ops
= &bus_ops_pci
;
449 err
= iwl_probe(bus
, &trans_ops_pcie
, cfg
);
451 goto out_disable_msi
;
455 pci_disable_msi(pdev
);
456 pci_iounmap(pdev
, pci_bus
->hw_base
);
457 out_pci_release_regions
:
458 pci_set_drvdata(pdev
, NULL
);
459 pci_release_regions(pdev
);
460 out_pci_disable_device
:
461 pci_disable_device(pdev
);
467 static void __devexit
iwl_pci_remove(struct pci_dev
*pdev
)
469 struct iwl_bus
*bus
= pci_get_drvdata(pdev
);
470 struct iwl_pci_bus
*pci_bus
= IWL_BUS_GET_PCI_BUS(bus
);
471 struct pci_dev
*pci_dev
= IWL_BUS_GET_PCI_DEV(bus
);
472 struct iwl_shared
*shrd
= bus
->shrd
;
474 iwl_remove(shrd
->priv
);
476 pci_disable_msi(pci_dev
);
477 pci_iounmap(pci_dev
, pci_bus
->hw_base
);
478 pci_release_regions(pci_dev
);
479 pci_disable_device(pci_dev
);
480 pci_set_drvdata(pci_dev
, NULL
);
485 #ifdef CONFIG_PM_SLEEP
487 static int iwl_pci_suspend(struct device
*device
)
489 struct pci_dev
*pdev
= to_pci_dev(device
);
490 struct iwl_bus
*bus
= pci_get_drvdata(pdev
);
491 struct iwl_shared
*shrd
= bus
->shrd
;
493 /* Before you put code here, think about WoWLAN. You cannot check here
494 * whether WoWLAN is enabled or not, and your code will run even if
495 * WoWLAN is enabled - don't kill the NIC, someone may need it in Sx.
498 return iwl_trans_suspend(shrd
->trans
);
501 static int iwl_pci_resume(struct device
*device
)
503 struct pci_dev
*pdev
= to_pci_dev(device
);
504 struct iwl_bus
*bus
= pci_get_drvdata(pdev
);
505 struct iwl_shared
*shrd
= bus
->shrd
;
507 /* Before you put code here, think about WoWLAN. You cannot check here
508 * whether WoWLAN is enabled or not, and your code will run even if
509 * WoWLAN is enabled - the NIC may be alive.
513 * We disable the RETRY_TIMEOUT register (0x41) to keep
514 * PCI Tx retries from interfering with C3 CPU state.
516 pci_write_config_byte(pdev
, PCI_CFG_RETRY_TIMEOUT
, 0x00);
518 return iwl_trans_resume(shrd
->trans
);
521 static SIMPLE_DEV_PM_OPS(iwl_dev_pm_ops
, iwl_pci_suspend
, iwl_pci_resume
);
523 #define IWL_PM_OPS (&iwl_dev_pm_ops)
527 #define IWL_PM_OPS NULL
531 static struct pci_driver iwl_pci_driver
= {
533 .id_table
= iwl_hw_card_ids
,
534 .probe
= iwl_pci_probe
,
535 .remove
= __devexit_p(iwl_pci_remove
),
536 .driver
.pm
= IWL_PM_OPS
,
539 int __must_check
iwl_pci_register_driver(void)
542 ret
= pci_register_driver(&iwl_pci_driver
);
544 pr_err("Unable to initialize PCI module\n");
549 void iwl_pci_unregister_driver(void)
551 pci_unregister_driver(&iwl_pci_driver
);