projects / deliverable / linux.git / blob
? search:
summary | shortlog | log | commit | commitdiff | tree
blame | history | raw | HEAD
iwlwifi: add disable_11ac module param
[deliverable/linux.git] / drivers / net / wireless / intel / iwlwifi / iwl-drv.c
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 - 2014 Intel Corporation. All rights reserved.
9 * Copyright(c) 2013 - 2015 Intel Mobile Communications GmbH
10 *
11 * This program is free software; you can redistribute it and/or modify
12 * it under the terms of version 2 of the GNU General Public License as
13 * published by the Free Software Foundation.
14 *
15 * This program is distributed in the hope that it will be useful, but
16 * WITHOUT ANY WARRANTY; without even the implied warranty of
17 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
18 * General Public License for more details.
19 *
20 * You should have received a copy of the GNU General Public License
21 * along with this program; if not, write to the Free Software
22 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110,
23 * USA
24 *
25 * The full GNU General Public License is included in this distribution
26 * in the file called COPYING.
27 *
28 * Contact Information:
29 * Intel Linux Wireless <linuxwifi@intel.com>
30 * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
31 *
32 * BSD LICENSE
33 *
34 * Copyright(c) 2005 - 2014 Intel Corporation. All rights reserved.
35 * Copyright(c) 2013 - 2015 Intel Mobile Communications GmbH
36 * All rights reserved.
37 *
38 * Redistribution and use in source and binary forms, with or without
39 * modification, are permitted provided that the following conditions
40 * are met:
41 *
42 * * Redistributions of source code must retain the above copyright
43 * notice, this list of conditions and the following disclaimer.
44 * * Redistributions in binary form must reproduce the above copyright
45 * notice, this list of conditions and the following disclaimer in
46 * the documentation and/or other materials provided with the
47 * distribution.
48 * * Neither the name Intel Corporation nor the names of its
49 * contributors may be used to endorse or promote products derived
50 * from this software without specific prior written permission.
51 *
52 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
53 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
54 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
55 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
56 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
57 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
58 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
59 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
60 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
61 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
62 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
63 *
64 *****************************************************************************/
65 #include <linux/completion.h>
66 #include <linux/dma-mapping.h>
67 #include <linux/firmware.h>
68 #include <linux/module.h>
69 #include <linux/vmalloc.h>
70
71 #include "iwl-drv.h"
72 #include "iwl-csr.h"
73 #include "iwl-debug.h"
74 #include "iwl-trans.h"
75 #include "iwl-op-mode.h"
76 #include "iwl-agn-hw.h"
77 #include "iwl-fw.h"
78 #include "iwl-config.h"
79 #include "iwl-modparams.h"
80
81 /******************************************************************************
82 *
83 * module boiler plate
84 *
85 ******************************************************************************/
86
87 #define DRV_DESCRIPTION "Intel(R) Wireless WiFi driver for Linux"
88 MODULE_DESCRIPTION(DRV_DESCRIPTION);
89 MODULE_AUTHOR(DRV_COPYRIGHT " " DRV_AUTHOR);
90 MODULE_LICENSE("GPL");
91
92 #ifdef CONFIG_IWLWIFI_DEBUGFS
93 static struct dentry *iwl_dbgfs_root;
94 #endif
95
96 /**
97 * struct iwl_drv - drv common data
98 * @list: list of drv structures using this opmode
99 * @fw: the iwl_fw structure
100 * @op_mode: the running op_mode
101 * @trans: transport layer
102 * @dev: for debug prints only
103 * @cfg: configuration struct
104 * @fw_index: firmware revision to try loading
105 * @firmware_name: composite filename of ucode file to load
106 * @request_firmware_complete: the firmware has been obtained from user space
107 */
108 struct iwl_drv {
109 struct list_head list;
110 struct iwl_fw fw;
111
112 struct iwl_op_mode *op_mode;
113 struct iwl_trans *trans;
114 struct device *dev;
115 const struct iwl_cfg *cfg;
116
117 int fw_index; /* firmware we're trying to load */
118 char firmware_name[32]; /* name of firmware file to load */
119
120 struct completion request_firmware_complete;
121
122 #ifdef CONFIG_IWLWIFI_DEBUGFS
123 struct dentry *dbgfs_drv;
124 struct dentry *dbgfs_trans;
125 struct dentry *dbgfs_op_mode;
126 #endif
127 };
128
129 enum {
130 DVM_OP_MODE = 0,
131 MVM_OP_MODE = 1,
132 };
133
134 /* Protects the table contents, i.e. the ops pointer & drv list */
135 static struct mutex iwlwifi_opmode_table_mtx;
136 static struct iwlwifi_opmode_table {
137 const char *name; /* name: iwldvm, iwlmvm, etc */
138 const struct iwl_op_mode_ops *ops; /* pointer to op_mode ops */
139 struct list_head drv; /* list of devices using this op_mode */
140 } iwlwifi_opmode_table[] = { /* ops set when driver is initialized */
141 [DVM_OP_MODE] = { .name = "iwldvm", .ops = NULL },
142 [MVM_OP_MODE] = { .name = "iwlmvm", .ops = NULL },
143 };
144
145 #define IWL_DEFAULT_SCAN_CHANNELS 40
146
147 /*
148 * struct fw_sec: Just for the image parsing process.
149 * For the fw storage we are using struct fw_desc.
150 */
151 struct fw_sec {
152 const void *data; /* the sec data */
153 size_t size; /* section size */
154 u32 offset; /* offset of writing in the device */
155 };
156
157 static void iwl_free_fw_desc(struct iwl_drv *drv, struct fw_desc *desc)
158 {
159 vfree(desc->data);
160 desc->data = NULL;
161 desc->len = 0;
162 }
163
164 static void iwl_free_fw_img(struct iwl_drv *drv, struct fw_img *img)
165 {
166 int i;
167 for (i = 0; i < IWL_UCODE_SECTION_MAX; i++)
168 iwl_free_fw_desc(drv, &img->sec[i]);
169 }
170
171 static void iwl_dealloc_ucode(struct iwl_drv *drv)
172 {
173 int i;
174
175 kfree(drv->fw.dbg_dest_tlv);
176 for (i = 0; i < ARRAY_SIZE(drv->fw.dbg_conf_tlv); i++)
177 kfree(drv->fw.dbg_conf_tlv[i]);
178 for (i = 0; i < ARRAY_SIZE(drv->fw.dbg_trigger_tlv); i++)
179 kfree(drv->fw.dbg_trigger_tlv[i]);
180
181 for (i = 0; i < IWL_UCODE_TYPE_MAX; i++)
182 iwl_free_fw_img(drv, drv->fw.img + i);
183 }
184
185 static int iwl_alloc_fw_desc(struct iwl_drv *drv, struct fw_desc *desc,
186 struct fw_sec *sec)
187 {
188 void *data;
189
190 desc->data = NULL;
191
192 if (!sec || !sec->size)
193 return -EINVAL;
194
195 data = vmalloc(sec->size);
196 if (!data)
197 return -ENOMEM;
198
199 desc->len = sec->size;
200 desc->offset = sec->offset;
201 memcpy(data, sec->data, desc->len);
202 desc->data = data;
203
204 return 0;
205 }
206
207 static void iwl_req_fw_callback(const struct firmware *ucode_raw,
208 void *context);
209
210 #define UCODE_EXPERIMENTAL_INDEX 100
211 #define UCODE_EXPERIMENTAL_TAG "exp"
212
213 static int iwl_request_firmware(struct iwl_drv *drv, bool first)
214 {
215 const char *name_pre = drv->cfg->fw_name_pre;
216 char tag[8];
217
218 if (first) {
219 #ifdef CONFIG_IWLWIFI_DEBUG_EXPERIMENTAL_UCODE
220 drv->fw_index = UCODE_EXPERIMENTAL_INDEX;
221 strcpy(tag, UCODE_EXPERIMENTAL_TAG);
222 } else if (drv->fw_index == UCODE_EXPERIMENTAL_INDEX) {
223 #endif
224 drv->fw_index = drv->cfg->ucode_api_max;
225 sprintf(tag, "%d", drv->fw_index);
226 } else {
227 drv->fw_index--;
228 sprintf(tag, "%d", drv->fw_index);
229 }
230
231 if (drv->fw_index < drv->cfg->ucode_api_min) {
232 IWL_ERR(drv, "no suitable firmware found!\n");
233 return -ENOENT;
234 }
235
236 snprintf(drv->firmware_name, sizeof(drv->firmware_name), "%s%s.ucode",
237 name_pre, tag);
238
239 /*
240 * Starting 8000B - FW name format has changed. This overwrites the
241 * previous name and uses the new format.
242 */
243 if (drv->trans->cfg->device_family == IWL_DEVICE_FAMILY_8000) {
244 char rev_step = 'A' + CSR_HW_REV_STEP(drv->trans->hw_rev);
245
246 if (rev_step != 'A')
247 snprintf(drv->firmware_name,
248 sizeof(drv->firmware_name), "%s%c-%s.ucode",
249 name_pre, rev_step, tag);
250 }
251
252 IWL_DEBUG_INFO(drv, "attempting to load firmware %s'%s'\n",
253 (drv->fw_index == UCODE_EXPERIMENTAL_INDEX)
254 ? "EXPERIMENTAL " : "",
255 drv->firmware_name);
256
257 return request_firmware_nowait(THIS_MODULE, 1, drv->firmware_name,
258 drv->trans->dev,
259 GFP_KERNEL, drv, iwl_req_fw_callback);
260 }
261
262 struct fw_img_parsing {
263 struct fw_sec sec[IWL_UCODE_SECTION_MAX];
264 int sec_counter;
265 };
266
267 /*
268 * struct fw_sec_parsing: to extract fw section and it's offset from tlv
269 */
270 struct fw_sec_parsing {
271 __le32 offset;
272 const u8 data[];
273 } __packed;
274
275 /**
276 * struct iwl_tlv_calib_data - parse the default calib data from TLV
277 *
278 * @ucode_type: the uCode to which the following default calib relates.
279 * @calib: default calibrations.
280 */
281 struct iwl_tlv_calib_data {
282 __le32 ucode_type;
283 struct iwl_tlv_calib_ctrl calib;
284 } __packed;
285
286 struct iwl_firmware_pieces {
287 struct fw_img_parsing img[IWL_UCODE_TYPE_MAX];
288
289 u32 init_evtlog_ptr, init_evtlog_size, init_errlog_ptr;
290 u32 inst_evtlog_ptr, inst_evtlog_size, inst_errlog_ptr;
291
292 /* FW debug data parsed for driver usage */
293 struct iwl_fw_dbg_dest_tlv *dbg_dest_tlv;
294 struct iwl_fw_dbg_conf_tlv *dbg_conf_tlv[FW_DBG_CONF_MAX];
295 size_t dbg_conf_tlv_len[FW_DBG_CONF_MAX];
296 struct iwl_fw_dbg_trigger_tlv *dbg_trigger_tlv[FW_DBG_TRIGGER_MAX];
297 size_t dbg_trigger_tlv_len[FW_DBG_TRIGGER_MAX];
298 };
299
300 /*
301 * These functions are just to extract uCode section data from the pieces
302 * structure.
303 */
304 static struct fw_sec *get_sec(struct iwl_firmware_pieces *pieces,
305 enum iwl_ucode_type type,
306 int sec)
307 {
308 return &pieces->img[type].sec[sec];
309 }
310
311 static void set_sec_data(struct iwl_firmware_pieces *pieces,
312 enum iwl_ucode_type type,
313 int sec,
314 const void *data)
315 {
316 pieces->img[type].sec[sec].data = data;
317 }
318
319 static void set_sec_size(struct iwl_firmware_pieces *pieces,
320 enum iwl_ucode_type type,
321 int sec,
322 size_t size)
323 {
324 pieces->img[type].sec[sec].size = size;
325 }
326
327 static size_t get_sec_size(struct iwl_firmware_pieces *pieces,
328 enum iwl_ucode_type type,
329 int sec)
330 {
331 return pieces->img[type].sec[sec].size;
332 }
333
334 static void set_sec_offset(struct iwl_firmware_pieces *pieces,
335 enum iwl_ucode_type type,
336 int sec,
337 u32 offset)
338 {
339 pieces->img[type].sec[sec].offset = offset;
340 }
341
342 static int iwl_store_cscheme(struct iwl_fw *fw, const u8 *data, const u32 len)
343 {
344 int i, j;
345 struct iwl_fw_cscheme_list *l = (struct iwl_fw_cscheme_list *)data;
346 struct iwl_fw_cipher_scheme *fwcs;
347 struct ieee80211_cipher_scheme *cs;
348 u32 cipher;
349
350 if (len < sizeof(*l) ||
351 len < sizeof(l->size) + l->size * sizeof(l->cs[0]))
352 return -EINVAL;
353
354 for (i = 0, j = 0; i < IWL_UCODE_MAX_CS && i < l->size; i++) {
355 fwcs = &l->cs[j];
356 cipher = le32_to_cpu(fwcs->cipher);
357
358 /* we skip schemes with zero cipher suite selector */
359 if (!cipher)
360 continue;
361
362 cs = &fw->cs[j++];
363 cs->cipher = cipher;
364 cs->iftype = BIT(NL80211_IFTYPE_STATION);
365 cs->hdr_len = fwcs->hdr_len;
366 cs->pn_len = fwcs->pn_len;
367 cs->pn_off = fwcs->pn_off;
368 cs->key_idx_off = fwcs->key_idx_off;
369 cs->key_idx_mask = fwcs->key_idx_mask;
370 cs->key_idx_shift = fwcs->key_idx_shift;
371 cs->mic_len = fwcs->mic_len;
372 }
373
374 return 0;
375 }
376
377 static int iwl_store_gscan_capa(struct iwl_fw *fw, const u8 *data,
378 const u32 len)
379 {
380 struct iwl_fw_gscan_capabilities *fw_capa = (void *)data;
381 struct iwl_gscan_capabilities *capa = &fw->gscan_capa;
382
383 if (len < sizeof(*fw_capa))
384 return -EINVAL;
385
386 capa->max_scan_cache_size = le32_to_cpu(fw_capa->max_scan_cache_size);
387 capa->max_scan_buckets = le32_to_cpu(fw_capa->max_scan_buckets);
388 capa->max_ap_cache_per_scan =
389 le32_to_cpu(fw_capa->max_ap_cache_per_scan);
390 capa->max_rssi_sample_size = le32_to_cpu(fw_capa->max_rssi_sample_size);
391 capa->max_scan_reporting_threshold =
392 le32_to_cpu(fw_capa->max_scan_reporting_threshold);
393 capa->max_hotlist_aps = le32_to_cpu(fw_capa->max_hotlist_aps);
394 capa->max_significant_change_aps =
395 le32_to_cpu(fw_capa->max_significant_change_aps);
396 capa->max_bssid_history_entries =
397 le32_to_cpu(fw_capa->max_bssid_history_entries);
398 return 0;
399 }
400
401 /*
402 * Gets uCode section from tlv.
403 */
404 static int iwl_store_ucode_sec(struct iwl_firmware_pieces *pieces,
405 const void *data, enum iwl_ucode_type type,
406 int size)
407 {
408 struct fw_img_parsing *img;
409 struct fw_sec *sec;
410 struct fw_sec_parsing *sec_parse;
411
412 if (WARN_ON(!pieces || !data || type >= IWL_UCODE_TYPE_MAX))
413 return -1;
414
415 sec_parse = (struct fw_sec_parsing *)data;
416
417 img = &pieces->img[type];
418 sec = &img->sec[img->sec_counter];
419
420 sec->offset = le32_to_cpu(sec_parse->offset);
421 sec->data = sec_parse->data;
422 sec->size = size - sizeof(sec_parse->offset);
423
424 ++img->sec_counter;
425
426 return 0;
427 }
428
429 static int iwl_set_default_calib(struct iwl_drv *drv, const u8 *data)
430 {
431 struct iwl_tlv_calib_data *def_calib =
432 (struct iwl_tlv_calib_data *)data;
433 u32 ucode_type = le32_to_cpu(def_calib->ucode_type);
434 if (ucode_type >= IWL_UCODE_TYPE_MAX) {
435 IWL_ERR(drv, "Wrong ucode_type %u for default calibration.\n",
436 ucode_type);
437 return -EINVAL;
438 }
439 drv->fw.default_calib[ucode_type].flow_trigger =
440 def_calib->calib.flow_trigger;
441 drv->fw.default_calib[ucode_type].event_trigger =
442 def_calib->calib.event_trigger;
443
444 return 0;
445 }
446
447 static int iwl_set_ucode_api_flags(struct iwl_drv *drv, const u8 *data,
448 struct iwl_ucode_capabilities *capa)
449 {
450 const struct iwl_ucode_api *ucode_api = (void *)data;
451 u32 api_index = le32_to_cpu(ucode_api->api_index);
452 u32 api_flags = le32_to_cpu(ucode_api->api_flags);
453 int i;
454
455 if (api_index >= DIV_ROUND_UP(NUM_IWL_UCODE_TLV_API, 32)) {
456 IWL_ERR(drv,
457 "api flags index %d larger than supported by driver\n",
458 api_index);
459 /* don't return an error so we can load FW that has more bits */
460 return 0;
461 }
462
463 for (i = 0; i < 32; i++) {
464 if (api_flags & BIT(i))
465 __set_bit(i + 32 * api_index, capa->_api);
466 }
467
468 return 0;
469 }
470
471 static int iwl_set_ucode_capabilities(struct iwl_drv *drv, const u8 *data,
472 struct iwl_ucode_capabilities *capa)
473 {
474 const struct iwl_ucode_capa *ucode_capa = (void *)data;
475 u32 api_index = le32_to_cpu(ucode_capa->api_index);
476 u32 api_flags = le32_to_cpu(ucode_capa->api_capa);
477 int i;
478
479 if (api_index >= DIV_ROUND_UP(NUM_IWL_UCODE_TLV_CAPA, 32)) {
480 IWL_ERR(drv,
481 "capa flags index %d larger than supported by driver\n",
482 api_index);
483 /* don't return an error so we can load FW that has more bits */
484 return 0;
485 }
486
487 for (i = 0; i < 32; i++) {
488 if (api_flags & BIT(i))
489 __set_bit(i + 32 * api_index, capa->_capa);
490 }
491
492 return 0;
493 }
494
495 static int iwl_parse_v1_v2_firmware(struct iwl_drv *drv,
496 const struct firmware *ucode_raw,
497 struct iwl_firmware_pieces *pieces)
498 {
499 struct iwl_ucode_header *ucode = (void *)ucode_raw->data;
500 u32 api_ver, hdr_size, build;
501 char buildstr[25];
502 const u8 *src;
503
504 drv->fw.ucode_ver = le32_to_cpu(ucode->ver);
505 api_ver = IWL_UCODE_API(drv->fw.ucode_ver);
506
507 switch (api_ver) {
508 default:
509 hdr_size = 28;
510 if (ucode_raw->size < hdr_size) {
511 IWL_ERR(drv, "File size too small!\n");
512 return -EINVAL;
513 }
514 build = le32_to_cpu(ucode->u.v2.build);
515 set_sec_size(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_INST,
516 le32_to_cpu(ucode->u.v2.inst_size));
517 set_sec_size(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_DATA,
518 le32_to_cpu(ucode->u.v2.data_size));
519 set_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_INST,
520 le32_to_cpu(ucode->u.v2.init_size));
521 set_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_DATA,
522 le32_to_cpu(ucode->u.v2.init_data_size));
523 src = ucode->u.v2.data;
524 break;
525 case 0:
526 case 1:
527 case 2:
528 hdr_size = 24;
529 if (ucode_raw->size < hdr_size) {
530 IWL_ERR(drv, "File size too small!\n");
531 return -EINVAL;
532 }
533 build = 0;
534 set_sec_size(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_INST,
535 le32_to_cpu(ucode->u.v1.inst_size));
536 set_sec_size(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_DATA,
537 le32_to_cpu(ucode->u.v1.data_size));
538 set_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_INST,
539 le32_to_cpu(ucode->u.v1.init_size));
540 set_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_DATA,
541 le32_to_cpu(ucode->u.v1.init_data_size));
542 src = ucode->u.v1.data;
543 break;
544 }
545
546 if (build)
547 sprintf(buildstr, " build %u%s", build,
548 (drv->fw_index == UCODE_EXPERIMENTAL_INDEX)
549 ? " (EXP)" : "");
550 else
551 buildstr[0] = '\0';
552
553 snprintf(drv->fw.fw_version,
554 sizeof(drv->fw.fw_version),
555 "%u.%u.%u.%u%s",
556 IWL_UCODE_MAJOR(drv->fw.ucode_ver),
557 IWL_UCODE_MINOR(drv->fw.ucode_ver),
558 IWL_UCODE_API(drv->fw.ucode_ver),
559 IWL_UCODE_SERIAL(drv->fw.ucode_ver),
560 buildstr);
561
562 /* Verify size of file vs. image size info in file's header */
563
564 if (ucode_raw->size != hdr_size +
565 get_sec_size(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_INST) +
566 get_sec_size(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_DATA) +
567 get_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_INST) +
568 get_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_DATA)) {
569
570 IWL_ERR(drv,
571 "uCode file size %d does not match expected size\n",
572 (int)ucode_raw->size);
573 return -EINVAL;
574 }
575
576
577 set_sec_data(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_INST, src);
578 src += get_sec_size(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_INST);
579 set_sec_offset(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_INST,
580 IWLAGN_RTC_INST_LOWER_BOUND);
581 set_sec_data(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_DATA, src);
582 src += get_sec_size(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_DATA);
583 set_sec_offset(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_DATA,
584 IWLAGN_RTC_DATA_LOWER_BOUND);
585 set_sec_data(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_INST, src);
586 src += get_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_INST);
587 set_sec_offset(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_INST,
588 IWLAGN_RTC_INST_LOWER_BOUND);
589 set_sec_data(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_DATA, src);
590 src += get_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_DATA);
591 set_sec_offset(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_DATA,
592 IWLAGN_RTC_DATA_LOWER_BOUND);
593 return 0;
594 }
595
596 static int iwl_parse_tlv_firmware(struct iwl_drv *drv,
597 const struct firmware *ucode_raw,
598 struct iwl_firmware_pieces *pieces,
599 struct iwl_ucode_capabilities *capa,
600 bool *usniffer_images)
601 {
602 struct iwl_tlv_ucode_header *ucode = (void *)ucode_raw->data;
603 struct iwl_ucode_tlv *tlv;
604 size_t len = ucode_raw->size;
605 const u8 *data;
606 u32 tlv_len;
607 u32 usniffer_img;
608 enum iwl_ucode_tlv_type tlv_type;
609 const u8 *tlv_data;
610 char buildstr[25];
611 u32 build, paging_mem_size;
612 int num_of_cpus;
613 bool usniffer_req = false;
614 bool gscan_capa = false;
615
616 if (len < sizeof(*ucode)) {
617 IWL_ERR(drv, "uCode has invalid length: %zd\n", len);
618 return -EINVAL;
619 }
620
621 if (ucode->magic != cpu_to_le32(IWL_TLV_UCODE_MAGIC)) {
622 IWL_ERR(drv, "invalid uCode magic: 0X%x\n",
623 le32_to_cpu(ucode->magic));
624 return -EINVAL;
625 }
626
627 drv->fw.ucode_ver = le32_to_cpu(ucode->ver);
628 memcpy(drv->fw.human_readable, ucode->human_readable,
629 sizeof(drv->fw.human_readable));
630 build = le32_to_cpu(ucode->build);
631
632 if (build)
633 sprintf(buildstr, " build %u%s", build,
634 (drv->fw_index == UCODE_EXPERIMENTAL_INDEX)
635 ? " (EXP)" : "");
636 else
637 buildstr[0] = '\0';
638
639 snprintf(drv->fw.fw_version,
640 sizeof(drv->fw.fw_version),
641 "%u.%u.%u.%u%s",
642 IWL_UCODE_MAJOR(drv->fw.ucode_ver),
643 IWL_UCODE_MINOR(drv->fw.ucode_ver),
644 IWL_UCODE_API(drv->fw.ucode_ver),
645 IWL_UCODE_SERIAL(drv->fw.ucode_ver),
646 buildstr);
647
648 data = ucode->data;
649
650 len -= sizeof(*ucode);
651
652 while (len >= sizeof(*tlv)) {
653 len -= sizeof(*tlv);
654 tlv = (void *)data;
655
656 tlv_len = le32_to_cpu(tlv->length);
657 tlv_type = le32_to_cpu(tlv->type);
658 tlv_data = tlv->data;
659
660 if (len < tlv_len) {
661 IWL_ERR(drv, "invalid TLV len: %zd/%u\n",
662 len, tlv_len);
663 return -EINVAL;
664 }
665 len -= ALIGN(tlv_len, 4);
666 data += sizeof(*tlv) + ALIGN(tlv_len, 4);
667
668 switch (tlv_type) {
669 case IWL_UCODE_TLV_INST:
670 set_sec_data(pieces, IWL_UCODE_REGULAR,
671 IWL_UCODE_SECTION_INST, tlv_data);
672 set_sec_size(pieces, IWL_UCODE_REGULAR,
673 IWL_UCODE_SECTION_INST, tlv_len);
674 set_sec_offset(pieces, IWL_UCODE_REGULAR,
675 IWL_UCODE_SECTION_INST,
676 IWLAGN_RTC_INST_LOWER_BOUND);
677 break;
678 case IWL_UCODE_TLV_DATA:
679 set_sec_data(pieces, IWL_UCODE_REGULAR,
680 IWL_UCODE_SECTION_DATA, tlv_data);
681 set_sec_size(pieces, IWL_UCODE_REGULAR,
682 IWL_UCODE_SECTION_DATA, tlv_len);
683 set_sec_offset(pieces, IWL_UCODE_REGULAR,
684 IWL_UCODE_SECTION_DATA,
685 IWLAGN_RTC_DATA_LOWER_BOUND);
686 break;
687 case IWL_UCODE_TLV_INIT:
688 set_sec_data(pieces, IWL_UCODE_INIT,
689 IWL_UCODE_SECTION_INST, tlv_data);
690 set_sec_size(pieces, IWL_UCODE_INIT,
691 IWL_UCODE_SECTION_INST, tlv_len);
692 set_sec_offset(pieces, IWL_UCODE_INIT,
693 IWL_UCODE_SECTION_INST,
694 IWLAGN_RTC_INST_LOWER_BOUND);
695 break;
696 case IWL_UCODE_TLV_INIT_DATA:
697 set_sec_data(pieces, IWL_UCODE_INIT,
698 IWL_UCODE_SECTION_DATA, tlv_data);
699 set_sec_size(pieces, IWL_UCODE_INIT,
700 IWL_UCODE_SECTION_DATA, tlv_len);
701 set_sec_offset(pieces, IWL_UCODE_INIT,
702 IWL_UCODE_SECTION_DATA,
703 IWLAGN_RTC_DATA_LOWER_BOUND);
704 break;
705 case IWL_UCODE_TLV_BOOT:
706 IWL_ERR(drv, "Found unexpected BOOT ucode\n");
707 break;
708 case IWL_UCODE_TLV_PROBE_MAX_LEN:
709 if (tlv_len != sizeof(u32))
710 goto invalid_tlv_len;
711 capa->max_probe_length =
712 le32_to_cpup((__le32 *)tlv_data);
713 break;
714 case IWL_UCODE_TLV_PAN:
715 if (tlv_len)
716 goto invalid_tlv_len;
717 capa->flags |= IWL_UCODE_TLV_FLAGS_PAN;
718 break;
719 case IWL_UCODE_TLV_FLAGS:
720 /* must be at least one u32 */
721 if (tlv_len < sizeof(u32))
722 goto invalid_tlv_len;
723 /* and a proper number of u32s */
724 if (tlv_len % sizeof(u32))
725 goto invalid_tlv_len;
726 /*
727 * This driver only reads the first u32 as
728 * right now no more features are defined,
729 * if that changes then either the driver
730 * will not work with the new firmware, or
731 * it'll not take advantage of new features.
732 */
733 capa->flags = le32_to_cpup((__le32 *)tlv_data);
734 break;
735 case IWL_UCODE_TLV_API_CHANGES_SET:
736 if (tlv_len != sizeof(struct iwl_ucode_api))
737 goto invalid_tlv_len;
738 if (iwl_set_ucode_api_flags(drv, tlv_data, capa))
739 goto tlv_error;
740 break;
741 case IWL_UCODE_TLV_ENABLED_CAPABILITIES:
742 if (tlv_len != sizeof(struct iwl_ucode_capa))
743 goto invalid_tlv_len;
744 if (iwl_set_ucode_capabilities(drv, tlv_data, capa))
745 goto tlv_error;
746 break;
747 case IWL_UCODE_TLV_INIT_EVTLOG_PTR:
748 if (tlv_len != sizeof(u32))
749 goto invalid_tlv_len;
750 pieces->init_evtlog_ptr =
751 le32_to_cpup((__le32 *)tlv_data);
752 break;
753 case IWL_UCODE_TLV_INIT_EVTLOG_SIZE:
754 if (tlv_len != sizeof(u32))
755 goto invalid_tlv_len;
756 pieces->init_evtlog_size =
757 le32_to_cpup((__le32 *)tlv_data);
758 break;
759 case IWL_UCODE_TLV_INIT_ERRLOG_PTR:
760 if (tlv_len != sizeof(u32))
761 goto invalid_tlv_len;
762 pieces->init_errlog_ptr =
763 le32_to_cpup((__le32 *)tlv_data);
764 break;
765 case IWL_UCODE_TLV_RUNT_EVTLOG_PTR:
766 if (tlv_len != sizeof(u32))
767 goto invalid_tlv_len;
768 pieces->inst_evtlog_ptr =
769 le32_to_cpup((__le32 *)tlv_data);
770 break;
771 case IWL_UCODE_TLV_RUNT_EVTLOG_SIZE:
772 if (tlv_len != sizeof(u32))
773 goto invalid_tlv_len;
774 pieces->inst_evtlog_size =
775 le32_to_cpup((__le32 *)tlv_data);
776 break;
777 case IWL_UCODE_TLV_RUNT_ERRLOG_PTR:
778 if (tlv_len != sizeof(u32))
779 goto invalid_tlv_len;
780 pieces->inst_errlog_ptr =
781 le32_to_cpup((__le32 *)tlv_data);
782 break;
783 case IWL_UCODE_TLV_ENHANCE_SENS_TBL:
784 if (tlv_len)
785 goto invalid_tlv_len;
786 drv->fw.enhance_sensitivity_table = true;
787 break;
788 case IWL_UCODE_TLV_WOWLAN_INST:
789 set_sec_data(pieces, IWL_UCODE_WOWLAN,
790 IWL_UCODE_SECTION_INST, tlv_data);
791 set_sec_size(pieces, IWL_UCODE_WOWLAN,
792 IWL_UCODE_SECTION_INST, tlv_len);
793 set_sec_offset(pieces, IWL_UCODE_WOWLAN,
794 IWL_UCODE_SECTION_INST,
795 IWLAGN_RTC_INST_LOWER_BOUND);
796 break;
797 case IWL_UCODE_TLV_WOWLAN_DATA:
798 set_sec_data(pieces, IWL_UCODE_WOWLAN,
799 IWL_UCODE_SECTION_DATA, tlv_data);
800 set_sec_size(pieces, IWL_UCODE_WOWLAN,
801 IWL_UCODE_SECTION_DATA, tlv_len);
802 set_sec_offset(pieces, IWL_UCODE_WOWLAN,
803 IWL_UCODE_SECTION_DATA,
804 IWLAGN_RTC_DATA_LOWER_BOUND);
805 break;
806 case IWL_UCODE_TLV_PHY_CALIBRATION_SIZE:
807 if (tlv_len != sizeof(u32))
808 goto invalid_tlv_len;
809 capa->standard_phy_calibration_size =
810 le32_to_cpup((__le32 *)tlv_data);
811 break;
812 case IWL_UCODE_TLV_SEC_RT:
813 iwl_store_ucode_sec(pieces, tlv_data, IWL_UCODE_REGULAR,
814 tlv_len);
815 drv->fw.mvm_fw = true;
816 break;
817 case IWL_UCODE_TLV_SEC_INIT:
818 iwl_store_ucode_sec(pieces, tlv_data, IWL_UCODE_INIT,
819 tlv_len);
820 drv->fw.mvm_fw = true;
821 break;
822 case IWL_UCODE_TLV_SEC_WOWLAN:
823 iwl_store_ucode_sec(pieces, tlv_data, IWL_UCODE_WOWLAN,
824 tlv_len);
825 drv->fw.mvm_fw = true;
826 break;
827 case IWL_UCODE_TLV_DEF_CALIB:
828 if (tlv_len != sizeof(struct iwl_tlv_calib_data))
829 goto invalid_tlv_len;
830 if (iwl_set_default_calib(drv, tlv_data))
831 goto tlv_error;
832 break;
833 case IWL_UCODE_TLV_PHY_SKU:
834 if (tlv_len != sizeof(u32))
835 goto invalid_tlv_len;
836 drv->fw.phy_config = le32_to_cpup((__le32 *)tlv_data);
837 drv->fw.valid_tx_ant = (drv->fw.phy_config &
838 FW_PHY_CFG_TX_CHAIN) >>
839 FW_PHY_CFG_TX_CHAIN_POS;
840 drv->fw.valid_rx_ant = (drv->fw.phy_config &
841 FW_PHY_CFG_RX_CHAIN) >>
842 FW_PHY_CFG_RX_CHAIN_POS;
843 break;
844 case IWL_UCODE_TLV_SECURE_SEC_RT:
845 iwl_store_ucode_sec(pieces, tlv_data, IWL_UCODE_REGULAR,
846 tlv_len);
847 drv->fw.mvm_fw = true;
848 break;
849 case IWL_UCODE_TLV_SECURE_SEC_INIT:
850 iwl_store_ucode_sec(pieces, tlv_data, IWL_UCODE_INIT,
851 tlv_len);
852 drv->fw.mvm_fw = true;
853 break;
854 case IWL_UCODE_TLV_SECURE_SEC_WOWLAN:
855 iwl_store_ucode_sec(pieces, tlv_data, IWL_UCODE_WOWLAN,
856 tlv_len);
857 drv->fw.mvm_fw = true;
858 break;
859 case IWL_UCODE_TLV_NUM_OF_CPU:
860 if (tlv_len != sizeof(u32))
861 goto invalid_tlv_len;
862 num_of_cpus =
863 le32_to_cpup((__le32 *)tlv_data);
864
865 if (num_of_cpus == 2) {
866 drv->fw.img[IWL_UCODE_REGULAR].is_dual_cpus =
867 true;
868 drv->fw.img[IWL_UCODE_INIT].is_dual_cpus =
869 true;
870 drv->fw.img[IWL_UCODE_WOWLAN].is_dual_cpus =
871 true;
872 } else if ((num_of_cpus > 2) || (num_of_cpus < 1)) {
873 IWL_ERR(drv, "Driver support upto 2 CPUs\n");
874 return -EINVAL;
875 }
876 break;
877 case IWL_UCODE_TLV_CSCHEME:
878 if (iwl_store_cscheme(&drv->fw, tlv_data, tlv_len))
879 goto invalid_tlv_len;
880 break;
881 case IWL_UCODE_TLV_N_SCAN_CHANNELS:
882 if (tlv_len != sizeof(u32))
883 goto invalid_tlv_len;
884 capa->n_scan_channels =
885 le32_to_cpup((__le32 *)tlv_data);
886 break;
887 case IWL_UCODE_TLV_FW_VERSION: {
888 __le32 *ptr = (void *)tlv_data;
889 u32 major, minor;
890 u8 local_comp;
891
892 if (tlv_len != sizeof(u32) * 3)
893 goto invalid_tlv_len;
894
895 major = le32_to_cpup(ptr++);
896 minor = le32_to_cpup(ptr++);
897 local_comp = le32_to_cpup(ptr);
898
899 snprintf(drv->fw.fw_version,
900 sizeof(drv->fw.fw_version), "%u.%u.%u",
901 major, minor, local_comp);
902 break;
903 }
904 case IWL_UCODE_TLV_FW_DBG_DEST: {
905 struct iwl_fw_dbg_dest_tlv *dest = (void *)tlv_data;
906
907 if (pieces->dbg_dest_tlv) {
908 IWL_ERR(drv,
909 "dbg destination ignored, already exists\n");
910 break;
911 }
912
913 pieces->dbg_dest_tlv = dest;
914 IWL_INFO(drv, "Found debug destination: %s\n",
915 get_fw_dbg_mode_string(dest->monitor_mode));
916
917 drv->fw.dbg_dest_reg_num =
918 tlv_len - offsetof(struct iwl_fw_dbg_dest_tlv,
919 reg_ops);
920 drv->fw.dbg_dest_reg_num /=
921 sizeof(drv->fw.dbg_dest_tlv->reg_ops[0]);
922
923 break;
924 }
925 case IWL_UCODE_TLV_FW_DBG_CONF: {
926 struct iwl_fw_dbg_conf_tlv *conf = (void *)tlv_data;
927
928 if (!pieces->dbg_dest_tlv) {
929 IWL_ERR(drv,
930 "Ignore dbg config %d - no destination configured\n",
931 conf->id);
932 break;
933 }
934
935 if (conf->id >= ARRAY_SIZE(drv->fw.dbg_conf_tlv)) {
936 IWL_ERR(drv,
937 "Skip unknown configuration: %d\n",
938 conf->id);
939 break;
940 }
941
942 if (pieces->dbg_conf_tlv[conf->id]) {
943 IWL_ERR(drv,
944 "Ignore duplicate dbg config %d\n",
945 conf->id);
946 break;
947 }
948
949 if (conf->usniffer)
950 usniffer_req = true;
951
952 IWL_INFO(drv, "Found debug configuration: %d\n",
953 conf->id);
954
955 pieces->dbg_conf_tlv[conf->id] = conf;
956 pieces->dbg_conf_tlv_len[conf->id] = tlv_len;
957 break;
958 }
959 case IWL_UCODE_TLV_FW_DBG_TRIGGER: {
960 struct iwl_fw_dbg_trigger_tlv *trigger =
961 (void *)tlv_data;
962 u32 trigger_id = le32_to_cpu(trigger->id);
963
964 if (trigger_id >= ARRAY_SIZE(drv->fw.dbg_trigger_tlv)) {
965 IWL_ERR(drv,
966 "Skip unknown trigger: %u\n",
967 trigger->id);
968 break;
969 }
970
971 if (pieces->dbg_trigger_tlv[trigger_id]) {
972 IWL_ERR(drv,
973 "Ignore duplicate dbg trigger %u\n",
974 trigger->id);
975 break;
976 }
977
978 IWL_INFO(drv, "Found debug trigger: %u\n", trigger->id);
979
980 pieces->dbg_trigger_tlv[trigger_id] = trigger;
981 pieces->dbg_trigger_tlv_len[trigger_id] = tlv_len;
982 break;
983 }
984 case IWL_UCODE_TLV_SEC_RT_USNIFFER:
985 *usniffer_images = true;
986 iwl_store_ucode_sec(pieces, tlv_data,
987 IWL_UCODE_REGULAR_USNIFFER,
988 tlv_len);
989 break;
990 case IWL_UCODE_TLV_PAGING:
991 if (tlv_len != sizeof(u32))
992 goto invalid_tlv_len;
993 paging_mem_size = le32_to_cpup((__le32 *)tlv_data);
994
995 IWL_DEBUG_FW(drv,
996 "Paging: paging enabled (size = %u bytes)\n",
997 paging_mem_size);
998
999 if (paging_mem_size > MAX_PAGING_IMAGE_SIZE) {
1000 IWL_ERR(drv,
1001 "Paging: driver supports up to %lu bytes for paging image\n",
1002 MAX_PAGING_IMAGE_SIZE);
1003 return -EINVAL;
1004 }
1005
1006 if (paging_mem_size & (FW_PAGING_SIZE - 1)) {
1007 IWL_ERR(drv,
1008 "Paging: image isn't multiple %lu\n",
1009 FW_PAGING_SIZE);
1010 return -EINVAL;
1011 }
1012
1013 drv->fw.img[IWL_UCODE_REGULAR].paging_mem_size =
1014 paging_mem_size;
1015 usniffer_img = IWL_UCODE_REGULAR_USNIFFER;
1016 drv->fw.img[usniffer_img].paging_mem_size =
1017 paging_mem_size;
1018 break;
1019 case IWL_UCODE_TLV_SDIO_ADMA_ADDR:
1020 if (tlv_len != sizeof(u32))
1021 goto invalid_tlv_len;
1022 drv->fw.sdio_adma_addr =
1023 le32_to_cpup((__le32 *)tlv_data);
1024 break;
1025 case IWL_UCODE_TLV_FW_GSCAN_CAPA:
1026 if (iwl_store_gscan_capa(&drv->fw, tlv_data, tlv_len))
1027 goto invalid_tlv_len;
1028 gscan_capa = true;
1029 break;
1030 default:
1031 IWL_DEBUG_INFO(drv, "unknown TLV: %d\n", tlv_type);
1032 break;
1033 }
1034 }
1035
1036 if (!fw_has_capa(capa, IWL_UCODE_TLV_CAPA_USNIFFER_UNIFIED) &&
1037 usniffer_req && !*usniffer_images) {
1038 IWL_ERR(drv,
1039 "user selected to work with usniffer but usniffer image isn't available in ucode package\n");
1040 return -EINVAL;
1041 }
1042
1043 if (len) {
1044 IWL_ERR(drv, "invalid TLV after parsing: %zd\n", len);
1045 iwl_print_hex_dump(drv, IWL_DL_FW, (u8 *)data, len);
1046 return -EINVAL;
1047 }
1048
1049 /*
1050 * If ucode advertises that it supports GSCAN but GSCAN
1051 * capabilities TLV is not present, warn and continue without GSCAN.
1052 */
1053 if (fw_has_capa(capa, IWL_UCODE_TLV_CAPA_GSCAN_SUPPORT) &&
1054 WARN(!gscan_capa,
1055 "GSCAN is supported but capabilities TLV is unavailable\n"))
1056 __clear_bit((__force long)IWL_UCODE_TLV_CAPA_GSCAN_SUPPORT,
1057 capa->_capa);
1058
1059 return 0;
1060
1061 invalid_tlv_len:
1062 IWL_ERR(drv, "TLV %d has invalid size: %u\n", tlv_type, tlv_len);
1063 tlv_error:
1064 iwl_print_hex_dump(drv, IWL_DL_FW, tlv_data, tlv_len);
1065
1066 return -EINVAL;
1067 }
1068
1069 static int iwl_alloc_ucode(struct iwl_drv *drv,
1070 struct iwl_firmware_pieces *pieces,
1071 enum iwl_ucode_type type)
1072 {
1073 int i;
1074 for (i = 0;
1075 i < IWL_UCODE_SECTION_MAX && get_sec_size(pieces, type, i);
1076 i++)
1077 if (iwl_alloc_fw_desc(drv, &(drv->fw.img[type].sec[i]),
1078 get_sec(pieces, type, i)))
1079 return -ENOMEM;
1080 return 0;
1081 }
1082
1083 static int validate_sec_sizes(struct iwl_drv *drv,
1084 struct iwl_firmware_pieces *pieces,
1085 const struct iwl_cfg *cfg)
1086 {
1087 IWL_DEBUG_INFO(drv, "f/w package hdr runtime inst size = %Zd\n",
1088 get_sec_size(pieces, IWL_UCODE_REGULAR,
1089 IWL_UCODE_SECTION_INST));
1090 IWL_DEBUG_INFO(drv, "f/w package hdr runtime data size = %Zd\n",
1091 get_sec_size(pieces, IWL_UCODE_REGULAR,
1092 IWL_UCODE_SECTION_DATA));
1093 IWL_DEBUG_INFO(drv, "f/w package hdr init inst size = %Zd\n",
1094 get_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_INST));
1095 IWL_DEBUG_INFO(drv, "f/w package hdr init data size = %Zd\n",
1096 get_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_DATA));
1097
1098 /* Verify that uCode images will fit in card's SRAM. */
1099 if (get_sec_size(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_INST) >
1100 cfg->max_inst_size) {
1101 IWL_ERR(drv, "uCode instr len %Zd too large to fit in\n",
1102 get_sec_size(pieces, IWL_UCODE_REGULAR,
1103 IWL_UCODE_SECTION_INST));
1104 return -1;
1105 }
1106
1107 if (get_sec_size(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_DATA) >
1108 cfg->max_data_size) {
1109 IWL_ERR(drv, "uCode data len %Zd too large to fit in\n",
1110 get_sec_size(pieces, IWL_UCODE_REGULAR,
1111 IWL_UCODE_SECTION_DATA));
1112 return -1;
1113 }
1114
1115 if (get_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_INST) >
1116 cfg->max_inst_size) {
1117 IWL_ERR(drv, "uCode init instr len %Zd too large to fit in\n",
1118 get_sec_size(pieces, IWL_UCODE_INIT,
1119 IWL_UCODE_SECTION_INST));
1120 return -1;
1121 }
1122
1123 if (get_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_DATA) >
1124 cfg->max_data_size) {
1125 IWL_ERR(drv, "uCode init data len %Zd too large to fit in\n",
1126 get_sec_size(pieces, IWL_UCODE_REGULAR,
1127 IWL_UCODE_SECTION_DATA));
1128 return -1;
1129 }
1130 return 0;
1131 }
1132
1133 static struct iwl_op_mode *
1134 _iwl_op_mode_start(struct iwl_drv *drv, struct iwlwifi_opmode_table *op)
1135 {
1136 const struct iwl_op_mode_ops *ops = op->ops;
1137 struct dentry *dbgfs_dir = NULL;
1138 struct iwl_op_mode *op_mode = NULL;
1139
1140 #ifdef CONFIG_IWLWIFI_DEBUGFS
1141 drv->dbgfs_op_mode = debugfs_create_dir(op->name,
1142 drv->dbgfs_drv);
1143 if (!drv->dbgfs_op_mode) {
1144 IWL_ERR(drv,
1145 "failed to create opmode debugfs directory\n");
1146 return op_mode;
1147 }
1148 dbgfs_dir = drv->dbgfs_op_mode;
1149 #endif
1150
1151 op_mode = ops->start(drv->trans, drv->cfg, &drv->fw, dbgfs_dir);
1152
1153 #ifdef CONFIG_IWLWIFI_DEBUGFS
1154 if (!op_mode) {
1155 debugfs_remove_recursive(drv->dbgfs_op_mode);
1156 drv->dbgfs_op_mode = NULL;
1157 }
1158 #endif
1159
1160 return op_mode;
1161 }
1162
1163 static void _iwl_op_mode_stop(struct iwl_drv *drv)
1164 {
1165 /* op_mode can be NULL if its start failed */
1166 if (drv->op_mode) {
1167 iwl_op_mode_stop(drv->op_mode);
1168 drv->op_mode = NULL;
1169
1170 #ifdef CONFIG_IWLWIFI_DEBUGFS
1171 debugfs_remove_recursive(drv->dbgfs_op_mode);
1172 drv->dbgfs_op_mode = NULL;
1173 #endif
1174 }
1175 }
1176
1177 /**
1178 * iwl_req_fw_callback - callback when firmware was loaded
1179 *
1180 * If loaded successfully, copies the firmware into buffers
1181 * for the card to fetch (via DMA).
1182 */
1183 static void iwl_req_fw_callback(const struct firmware *ucode_raw, void *context)
1184 {
1185 struct iwl_drv *drv = context;
1186 struct iwl_fw *fw = &drv->fw;
1187 struct iwl_ucode_header *ucode;
1188 struct iwlwifi_opmode_table *op;
1189 int err;
1190 struct iwl_firmware_pieces *pieces;
1191 const unsigned int api_max = drv->cfg->ucode_api_max;
1192 unsigned int api_ok = drv->cfg->ucode_api_ok;
1193 const unsigned int api_min = drv->cfg->ucode_api_min;
1194 size_t trigger_tlv_sz[FW_DBG_TRIGGER_MAX];
1195 u32 api_ver;
1196 int i;
1197 bool load_module = false;
1198 bool usniffer_images = false;
1199
1200 fw->ucode_capa.max_probe_length = IWL_DEFAULT_MAX_PROBE_LENGTH;
1201 fw->ucode_capa.standard_phy_calibration_size =
1202 IWL_DEFAULT_STANDARD_PHY_CALIBRATE_TBL_SIZE;
1203 fw->ucode_capa.n_scan_channels = IWL_DEFAULT_SCAN_CHANNELS;
1204
1205 if (!api_ok)
1206 api_ok = api_max;
1207
1208 pieces = kzalloc(sizeof(*pieces), GFP_KERNEL);
1209 if (!pieces)
1210 return;
1211
1212 if (!ucode_raw) {
1213 if (drv->fw_index <= api_ok)
1214 IWL_ERR(drv,
1215 "request for firmware file '%s' failed.\n",
1216 drv->firmware_name);
1217 goto try_again;
1218 }
1219
1220 IWL_DEBUG_INFO(drv, "Loaded firmware file '%s' (%zd bytes).\n",
1221 drv->firmware_name, ucode_raw->size);
1222
1223 /* Make sure that we got at least the API version number */
1224 if (ucode_raw->size < 4) {
1225 IWL_ERR(drv, "File size way too small!\n");
1226 goto try_again;
1227 }
1228
1229 /* Data from ucode file: header followed by uCode images */
1230 ucode = (struct iwl_ucode_header *)ucode_raw->data;
1231
1232 if (ucode->ver)
1233 err = iwl_parse_v1_v2_firmware(drv, ucode_raw, pieces);
1234 else
1235 err = iwl_parse_tlv_firmware(drv, ucode_raw, pieces,
1236 &fw->ucode_capa, &usniffer_images);
1237
1238 if (err)
1239 goto try_again;
1240
1241 if (fw_has_api(&drv->fw.ucode_capa, IWL_UCODE_TLV_API_NEW_VERSION))
1242 api_ver = drv->fw.ucode_ver;
1243 else
1244 api_ver = IWL_UCODE_API(drv->fw.ucode_ver);
1245
1246 /*
1247 * api_ver should match the api version forming part of the
1248 * firmware filename ... but we don't check for that and only rely
1249 * on the API version read from firmware header from here on forward
1250 */
1251 /* no api version check required for experimental uCode */
1252 if (drv->fw_index != UCODE_EXPERIMENTAL_INDEX) {
1253 if (api_ver < api_min || api_ver > api_max) {
1254 IWL_ERR(drv,
1255 "Driver unable to support your firmware API. "
1256 "Driver supports v%u, firmware is v%u.\n",
1257 api_max, api_ver);
1258 goto try_again;
1259 }
1260
1261 if (api_ver < api_ok) {
1262 if (api_ok != api_max)
1263 IWL_ERR(drv, "Firmware has old API version, "
1264 "expected v%u through v%u, got v%u.\n",
1265 api_ok, api_max, api_ver);
1266 else
1267 IWL_ERR(drv, "Firmware has old API version, "
1268 "expected v%u, got v%u.\n",
1269 api_max, api_ver);
1270 IWL_ERR(drv, "New firmware can be obtained from "
1271 "http://www.intellinuxwireless.org/.\n");
1272 }
1273 }
1274
1275 /*
1276 * In mvm uCode there is no difference between data and instructions
1277 * sections.
1278 */
1279 if (!fw->mvm_fw && validate_sec_sizes(drv, pieces, drv->cfg))
1280 goto try_again;
1281
1282 /* Allocate ucode buffers for card's bus-master loading ... */
1283
1284 /* Runtime instructions and 2 copies of data:
1285 * 1) unmodified from disk
1286 * 2) backup cache for save/restore during power-downs */
1287 for (i = 0; i < IWL_UCODE_TYPE_MAX; i++)
1288 if (iwl_alloc_ucode(drv, pieces, i))
1289 goto out_free_fw;
1290
1291 if (pieces->dbg_dest_tlv) {
1292 drv->fw.dbg_dest_tlv =
1293 kmemdup(pieces->dbg_dest_tlv,
1294 sizeof(*pieces->dbg_dest_tlv) +
1295 sizeof(pieces->dbg_dest_tlv->reg_ops[0]) *
1296 drv->fw.dbg_dest_reg_num, GFP_KERNEL);
1297
1298 if (!drv->fw.dbg_dest_tlv)
1299 goto out_free_fw;
1300 }
1301
1302 for (i = 0; i < ARRAY_SIZE(drv->fw.dbg_conf_tlv); i++) {
1303 if (pieces->dbg_conf_tlv[i]) {
1304 drv->fw.dbg_conf_tlv_len[i] =
1305 pieces->dbg_conf_tlv_len[i];
1306 drv->fw.dbg_conf_tlv[i] =
1307 kmemdup(pieces->dbg_conf_tlv[i],
1308 drv->fw.dbg_conf_tlv_len[i],
1309 GFP_KERNEL);
1310 if (!drv->fw.dbg_conf_tlv[i])
1311 goto out_free_fw;
1312 }
1313 }
1314
1315 memset(&trigger_tlv_sz, 0xff, sizeof(trigger_tlv_sz));
1316
1317 trigger_tlv_sz[FW_DBG_TRIGGER_MISSED_BEACONS] =
1318 sizeof(struct iwl_fw_dbg_trigger_missed_bcon);
1319 trigger_tlv_sz[FW_DBG_TRIGGER_CHANNEL_SWITCH] = 0;
1320 trigger_tlv_sz[FW_DBG_TRIGGER_FW_NOTIF] =
1321 sizeof(struct iwl_fw_dbg_trigger_cmd);
1322 trigger_tlv_sz[FW_DBG_TRIGGER_MLME] =
1323 sizeof(struct iwl_fw_dbg_trigger_mlme);
1324 trigger_tlv_sz[FW_DBG_TRIGGER_STATS] =
1325 sizeof(struct iwl_fw_dbg_trigger_stats);
1326 trigger_tlv_sz[FW_DBG_TRIGGER_RSSI] =
1327 sizeof(struct iwl_fw_dbg_trigger_low_rssi);
1328 trigger_tlv_sz[FW_DBG_TRIGGER_TXQ_TIMERS] =
1329 sizeof(struct iwl_fw_dbg_trigger_txq_timer);
1330 trigger_tlv_sz[FW_DBG_TRIGGER_TIME_EVENT] =
1331 sizeof(struct iwl_fw_dbg_trigger_time_event);
1332 trigger_tlv_sz[FW_DBG_TRIGGER_BA] =
1333 sizeof(struct iwl_fw_dbg_trigger_ba);
1334 trigger_tlv_sz[FW_DBG_TRIGGER_TDLS] =
1335 sizeof(struct iwl_fw_dbg_trigger_tdls);
1336
1337 for (i = 0; i < ARRAY_SIZE(drv->fw.dbg_trigger_tlv); i++) {
1338 if (pieces->dbg_trigger_tlv[i]) {
1339 /*
1340 * If the trigger isn't long enough, WARN and exit.
1341 * Someone is trying to debug something and he won't
1342 * be able to catch the bug he is trying to chase.
1343 * We'd better be noisy to be sure he knows what's
1344 * going on.
1345 */
1346 if (WARN_ON(pieces->dbg_trigger_tlv_len[i] <
1347 (trigger_tlv_sz[i] +
1348 sizeof(struct iwl_fw_dbg_trigger_tlv))))
1349 goto out_free_fw;
1350 drv->fw.dbg_trigger_tlv_len[i] =
1351 pieces->dbg_trigger_tlv_len[i];
1352 drv->fw.dbg_trigger_tlv[i] =
1353 kmemdup(pieces->dbg_trigger_tlv[i],
1354 drv->fw.dbg_trigger_tlv_len[i],
1355 GFP_KERNEL);
1356 if (!drv->fw.dbg_trigger_tlv[i])
1357 goto out_free_fw;
1358 }
1359 }
1360
1361 /* Now that we can no longer fail, copy information */
1362
1363 /*
1364 * The (size - 16) / 12 formula is based on the information recorded
1365 * for each event, which is of mode 1 (including timestamp) for all
1366 * new microcodes that include this information.
1367 */
1368 fw->init_evtlog_ptr = pieces->init_evtlog_ptr;
1369 if (pieces->init_evtlog_size)
1370 fw->init_evtlog_size = (pieces->init_evtlog_size - 16)/12;
1371 else
1372 fw->init_evtlog_size =
1373 drv->cfg->base_params->max_event_log_size;
1374 fw->init_errlog_ptr = pieces->init_errlog_ptr;
1375 fw->inst_evtlog_ptr = pieces->inst_evtlog_ptr;
1376 if (pieces->inst_evtlog_size)
1377 fw->inst_evtlog_size = (pieces->inst_evtlog_size - 16)/12;
1378 else
1379 fw->inst_evtlog_size =
1380 drv->cfg->base_params->max_event_log_size;
1381 fw->inst_errlog_ptr = pieces->inst_errlog_ptr;
1382
1383 /*
1384 * figure out the offset of chain noise reset and gain commands
1385 * base on the size of standard phy calibration commands table size
1386 */
1387 if (fw->ucode_capa.standard_phy_calibration_size >
1388 IWL_MAX_PHY_CALIBRATE_TBL_SIZE)
1389 fw->ucode_capa.standard_phy_calibration_size =
1390 IWL_MAX_STANDARD_PHY_CALIBRATE_TBL_SIZE;
1391
1392 /* We have our copies now, allow OS release its copies */
1393 release_firmware(ucode_raw);
1394
1395 mutex_lock(&iwlwifi_opmode_table_mtx);
1396 if (fw->mvm_fw)
1397 op = &iwlwifi_opmode_table[MVM_OP_MODE];
1398 else
1399 op = &iwlwifi_opmode_table[DVM_OP_MODE];
1400
1401 IWL_INFO(drv, "loaded firmware version %s op_mode %s\n",
1402 drv->fw.fw_version, op->name);
1403
1404 /* add this device to the list of devices using this op_mode */
1405 list_add_tail(&drv->list, &op->drv);
1406
1407 if (op->ops) {
1408 drv->op_mode = _iwl_op_mode_start(drv, op);
1409
1410 if (!drv->op_mode) {
1411 mutex_unlock(&iwlwifi_opmode_table_mtx);
1412 goto out_unbind;
1413 }
1414 } else {
1415 load_module = true;
1416 }
1417 mutex_unlock(&iwlwifi_opmode_table_mtx);
1418
1419 /*
1420 * Complete the firmware request last so that
1421 * a driver unbind (stop) doesn't run while we
1422 * are doing the start() above.
1423 */
1424 complete(&drv->request_firmware_complete);
1425
1426 /*
1427 * Load the module last so we don't block anything
1428 * else from proceeding if the module fails to load
1429 * or hangs loading.
1430 */
1431 if (load_module) {
1432 err = request_module("%s", op->name);
1433 #ifdef CONFIG_IWLWIFI_OPMODE_MODULAR
1434 if (err)
1435 IWL_ERR(drv,
1436 "failed to load module %s (error %d), is dynamic loading enabled?\n",
1437 op->name, err);
1438 #endif
1439 }
1440 kfree(pieces);
1441 return;
1442
1443 try_again:
1444 /* try next, if any */
1445 release_firmware(ucode_raw);
1446 if (iwl_request_firmware(drv, false))
1447 goto out_unbind;
1448 kfree(pieces);
1449 return;
1450
1451 out_free_fw:
1452 IWL_ERR(drv, "failed to allocate pci memory\n");
1453 iwl_dealloc_ucode(drv);
1454 release_firmware(ucode_raw);
1455 out_unbind:
1456 kfree(pieces);
1457 complete(&drv->request_firmware_complete);
1458 device_release_driver(drv->trans->dev);
1459 }
1460
1461 struct iwl_drv *iwl_drv_start(struct iwl_trans *trans,
1462 const struct iwl_cfg *cfg)
1463 {
1464 struct iwl_drv *drv;
1465 int ret;
1466
1467 drv = kzalloc(sizeof(*drv), GFP_KERNEL);
1468 if (!drv) {
1469 ret = -ENOMEM;
1470 goto err;
1471 }
1472
1473 drv->trans = trans;
1474 drv->dev = trans->dev;
1475 drv->cfg = cfg;
1476
1477 init_completion(&drv->request_firmware_complete);
1478 INIT_LIST_HEAD(&drv->list);
1479
1480 #ifdef CONFIG_IWLWIFI_DEBUGFS
1481 /* Create the device debugfs entries. */
1482 drv->dbgfs_drv = debugfs_create_dir(dev_name(trans->dev),
1483 iwl_dbgfs_root);
1484
1485 if (!drv->dbgfs_drv) {
1486 IWL_ERR(drv, "failed to create debugfs directory\n");
1487 ret = -ENOMEM;
1488 goto err_free_drv;
1489 }
1490
1491 /* Create transport layer debugfs dir */
1492 drv->trans->dbgfs_dir = debugfs_create_dir("trans", drv->dbgfs_drv);
1493
1494 if (!drv->trans->dbgfs_dir) {
1495 IWL_ERR(drv, "failed to create transport debugfs directory\n");
1496 ret = -ENOMEM;
1497 goto err_free_dbgfs;
1498 }
1499 #endif
1500
1501 ret = iwl_request_firmware(drv, true);
1502 if (ret) {
1503 IWL_ERR(trans, "Couldn't request the fw\n");
1504 goto err_fw;
1505 }
1506
1507 return drv;
1508
1509 err_fw:
1510 #ifdef CONFIG_IWLWIFI_DEBUGFS
1511 err_free_dbgfs:
1512 debugfs_remove_recursive(drv->dbgfs_drv);
1513 err_free_drv:
1514 #endif
1515 kfree(drv);
1516 err:
1517 return ERR_PTR(ret);
1518 }
1519
1520 void iwl_drv_stop(struct iwl_drv *drv)
1521 {
1522 wait_for_completion(&drv->request_firmware_complete);
1523
1524 _iwl_op_mode_stop(drv);
1525
1526 iwl_dealloc_ucode(drv);
1527
1528 mutex_lock(&iwlwifi_opmode_table_mtx);
1529 /*
1530 * List is empty (this item wasn't added)
1531 * when firmware loading failed -- in that
1532 * case we can't remove it from any list.
1533 */
1534 if (!list_empty(&drv->list))
1535 list_del(&drv->list);
1536 mutex_unlock(&iwlwifi_opmode_table_mtx);
1537
1538 #ifdef CONFIG_IWLWIFI_DEBUGFS
1539 debugfs_remove_recursive(drv->dbgfs_drv);
1540 #endif
1541
1542 kfree(drv);
1543 }
1544
1545
1546 /* shared module parameters */
1547 struct iwl_mod_params iwlwifi_mod_params = {
1548 .restart_fw = true,
1549 .bt_coex_active = true,
1550 .power_level = IWL_POWER_INDEX_1,
1551 .d0i3_disable = true,
1552 .d0i3_entry_delay = 1000,
1553 #ifndef CONFIG_IWLWIFI_UAPSD
1554 .uapsd_disable = true,
1555 #endif /* CONFIG_IWLWIFI_UAPSD */
1556 /* the rest are 0 by default */
1557 };
1558 IWL_EXPORT_SYMBOL(iwlwifi_mod_params);
1559
1560 int iwl_opmode_register(const char *name, const struct iwl_op_mode_ops *ops)
1561 {
1562 int i;
1563 struct iwl_drv *drv;
1564 struct iwlwifi_opmode_table *op;
1565
1566 mutex_lock(&iwlwifi_opmode_table_mtx);
1567 for (i = 0; i < ARRAY_SIZE(iwlwifi_opmode_table); i++) {
1568 op = &iwlwifi_opmode_table[i];
1569 if (strcmp(op->name, name))
1570 continue;
1571 op->ops = ops;
1572 /* TODO: need to handle exceptional case */
1573 list_for_each_entry(drv, &op->drv, list)
1574 drv->op_mode = _iwl_op_mode_start(drv, op);
1575
1576 mutex_unlock(&iwlwifi_opmode_table_mtx);
1577 return 0;
1578 }
1579 mutex_unlock(&iwlwifi_opmode_table_mtx);
1580 return -EIO;
1581 }
1582 IWL_EXPORT_SYMBOL(iwl_opmode_register);
1583
1584 void iwl_opmode_deregister(const char *name)
1585 {
1586 int i;
1587 struct iwl_drv *drv;
1588
1589 mutex_lock(&iwlwifi_opmode_table_mtx);
1590 for (i = 0; i < ARRAY_SIZE(iwlwifi_opmode_table); i++) {
1591 if (strcmp(iwlwifi_opmode_table[i].name, name))
1592 continue;
1593 iwlwifi_opmode_table[i].ops = NULL;
1594
1595 /* call the stop routine for all devices */
1596 list_for_each_entry(drv, &iwlwifi_opmode_table[i].drv, list)
1597 _iwl_op_mode_stop(drv);
1598
1599 mutex_unlock(&iwlwifi_opmode_table_mtx);
1600 return;
1601 }
1602 mutex_unlock(&iwlwifi_opmode_table_mtx);
1603 }
1604 IWL_EXPORT_SYMBOL(iwl_opmode_deregister);
1605
1606 static int __init iwl_drv_init(void)
1607 {
1608 int i;
1609
1610 mutex_init(&iwlwifi_opmode_table_mtx);
1611
1612 for (i = 0; i < ARRAY_SIZE(iwlwifi_opmode_table); i++)
1613 INIT_LIST_HEAD(&iwlwifi_opmode_table[i].drv);
1614
1615 pr_info(DRV_DESCRIPTION "\n");
1616 pr_info(DRV_COPYRIGHT "\n");
1617
1618 #ifdef CONFIG_IWLWIFI_DEBUGFS
1619 /* Create the root of iwlwifi debugfs subsystem. */
1620 iwl_dbgfs_root = debugfs_create_dir(DRV_NAME, NULL);
1621
1622 if (!iwl_dbgfs_root)
1623 return -EFAULT;
1624 #endif
1625
1626 return iwl_pci_register_driver();
1627 }
1628 module_init(iwl_drv_init);
1629
1630 static void __exit iwl_drv_exit(void)
1631 {
1632 iwl_pci_unregister_driver();
1633
1634 #ifdef CONFIG_IWLWIFI_DEBUGFS
1635 debugfs_remove_recursive(iwl_dbgfs_root);
1636 #endif
1637 }
1638 module_exit(iwl_drv_exit);
1639
1640 #ifdef CONFIG_IWLWIFI_DEBUG
1641 module_param_named(debug, iwlwifi_mod_params.debug_level, uint,
1642 S_IRUGO | S_IWUSR);
1643 MODULE_PARM_DESC(debug, "debug output mask");
1644 #endif
1645
1646 module_param_named(swcrypto, iwlwifi_mod_params.sw_crypto, int, S_IRUGO);
1647 MODULE_PARM_DESC(swcrypto, "using crypto in software (default 0 [hardware])");
1648 module_param_named(11n_disable, iwlwifi_mod_params.disable_11n, uint, S_IRUGO);
1649 MODULE_PARM_DESC(11n_disable,
1650 "disable 11n functionality, bitmap: 1: full, 2: disable agg TX, 4: disable agg RX, 8 enable agg TX");
1651 module_param_named(amsdu_size, iwlwifi_mod_params.amsdu_size,
1652 int, S_IRUGO);
1653 MODULE_PARM_DESC(amsdu_size, "amsdu size 0:4K 1:8K 2:12K (default 0)");
1654 module_param_named(fw_restart, iwlwifi_mod_params.restart_fw, bool, S_IRUGO);
1655 MODULE_PARM_DESC(fw_restart, "restart firmware in case of error (default true)");
1656
1657 module_param_named(antenna_coupling, iwlwifi_mod_params.ant_coupling,
1658 int, S_IRUGO);
1659 MODULE_PARM_DESC(antenna_coupling,
1660 "specify antenna coupling in dB (default: 0 dB)");
1661
1662 module_param_named(nvm_file, iwlwifi_mod_params.nvm_file, charp, S_IRUGO);
1663 MODULE_PARM_DESC(nvm_file, "NVM file name");
1664
1665 module_param_named(d0i3_disable, iwlwifi_mod_params.d0i3_disable,
1666 bool, S_IRUGO);
1667 MODULE_PARM_DESC(d0i3_disable, "disable d0i3 functionality (default: Y)");
1668
1669 module_param_named(lar_disable, iwlwifi_mod_params.lar_disable,
1670 bool, S_IRUGO);
1671 MODULE_PARM_DESC(lar_disable, "disable LAR functionality (default: N)");
1672
1673 module_param_named(uapsd_disable, iwlwifi_mod_params.uapsd_disable,
1674 bool, S_IRUGO | S_IWUSR);
1675 #ifdef CONFIG_IWLWIFI_UAPSD
1676 MODULE_PARM_DESC(uapsd_disable, "disable U-APSD functionality (default: N)");
1677 #else
1678 MODULE_PARM_DESC(uapsd_disable, "disable U-APSD functionality (default: Y)");
1679 #endif
1680
1681 /*
1682 * set bt_coex_active to true, uCode will do kill/defer
1683 * every time the priority line is asserted (BT is sending signals on the
1684 * priority line in the PCIx).
1685 * set bt_coex_active to false, uCode will ignore the BT activity and
1686 * perform the normal operation
1687 *
1688 * User might experience transmit issue on some platform due to WiFi/BT
1689 * co-exist problem. The possible behaviors are:
1690 * Able to scan and finding all the available AP
1691 * Not able to associate with any AP
1692 * On those platforms, WiFi communication can be restored by set
1693 * "bt_coex_active" module parameter to "false"
1694 *
1695 * default: bt_coex_active = true (BT_COEX_ENABLE)
1696 */
1697 module_param_named(bt_coex_active, iwlwifi_mod_params.bt_coex_active,
1698 bool, S_IRUGO);
1699 MODULE_PARM_DESC(bt_coex_active, "enable wifi/bt co-exist (default: enable)");
1700
1701 module_param_named(led_mode, iwlwifi_mod_params.led_mode, int, S_IRUGO);
1702 MODULE_PARM_DESC(led_mode, "0=system default, "
1703 "1=On(RF On)/Off(RF Off), 2=blinking, 3=Off (default: 0)");
1704
1705 module_param_named(power_save, iwlwifi_mod_params.power_save,
1706 bool, S_IRUGO);
1707 MODULE_PARM_DESC(power_save,
1708 "enable WiFi power management (default: disable)");
1709
1710 module_param_named(power_level, iwlwifi_mod_params.power_level,
1711 int, S_IRUGO);
1712 MODULE_PARM_DESC(power_level,
1713 "default power save level (range from 1 - 5, default: 1)");
1714
1715 module_param_named(fw_monitor, iwlwifi_mod_params.fw_monitor, bool, S_IRUGO);
1716 MODULE_PARM_DESC(fw_monitor,
1717 "firmware monitor - to debug FW (default: false - needs lots of memory)");
1718
1719 module_param_named(d0i3_timeout, iwlwifi_mod_params.d0i3_entry_delay,
1720 uint, S_IRUGO);
1721 MODULE_PARM_DESC(d0i3_timeout, "Timeout to D0i3 entry when idle (ms)");
1722
1723 module_param_named(disable_11ac, iwlwifi_mod_params.disable_11ac, bool,
1724 S_IRUGO);
1725 MODULE_PARM_DESC(disable_11ac, "Disable VHT capabilities");
Linux kernel - Deliverables
This page took 0.118593 seconds and 5 git commands to generate.