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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 * Copyright(c) 2016 Intel Deutschland GmbH
11 *
12 * This program is free software; you can redistribute it and/or modify
13 * it under the terms of version 2 of the GNU General Public License as
14 * published by the Free Software Foundation.
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. See the GNU
19 * General Public License for more details.
20 *
21 * You should have received a copy of the GNU General Public License
22 * along with this program; if not, write to the Free Software
23 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110,
24 * USA
25 *
26 * The full GNU General Public License is included in this distribution
27 * in the file called COPYING.
28 *
29 * Contact Information:
30 * Intel Linux Wireless <linuxwifi@intel.com>
31 * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
32 *
33 * BSD LICENSE
34 *
35 * Copyright(c) 2005 - 2014 Intel Corporation. All rights reserved.
36 * Copyright(c) 2013 - 2015 Intel Mobile Communications GmbH
37 * Copyright(c) 2016 Intel Deutschland GmbH
38 * All rights reserved.
39 *
40 * Redistribution and use in source and binary forms, with or without
41 * modification, are permitted provided that the following conditions
42 * are met:
43 *
44 * * Redistributions of source code must retain the above copyright
45 * notice, this list of conditions and the following disclaimer.
46 * * Redistributions in binary form must reproduce the above copyright
47 * notice, this list of conditions and the following disclaimer in
48 * the documentation and/or other materials provided with the
49 * distribution.
50 * * Neither the name Intel Corporation nor the names of its
51 * contributors may be used to endorse or promote products derived
52 * from this software without specific prior written permission.
53 *
54 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
55 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
56 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
57 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
58 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
59 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
60 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
61 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
62 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
63 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
64 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
65 *
66 *****************************************************************************/
67#include <linux/completion.h>
68#include <linux/dma-mapping.h>
69#include <linux/firmware.h>
70#include <linux/module.h>
71#include <linux/vmalloc.h>
72
73#include "iwl-drv.h"
74#include "iwl-csr.h"
75#include "iwl-debug.h"
76#include "iwl-trans.h"
77#include "iwl-op-mode.h"
78#include "iwl-agn-hw.h"
79#include "iwl-fw.h"
80#include "iwl-config.h"
81#include "iwl-modparams.h"
82
83/******************************************************************************
84 *
85 * module boiler plate
86 *
87 ******************************************************************************/
88
89#define DRV_DESCRIPTION "Intel(R) Wireless WiFi driver for Linux"
90MODULE_DESCRIPTION(DRV_DESCRIPTION);
91MODULE_AUTHOR(DRV_COPYRIGHT " " DRV_AUTHOR);
92MODULE_LICENSE("GPL");
93
94#ifdef CONFIG_IWLWIFI_DEBUGFS
95static struct dentry *iwl_dbgfs_root;
96#endif
97
98/**
99 * struct iwl_drv - drv common data
100 * @list: list of drv structures using this opmode
101 * @fw: the iwl_fw structure
102 * @op_mode: the running op_mode
103 * @trans: transport layer
104 * @dev: for debug prints only
105 * @cfg: configuration struct
106 * @fw_index: firmware revision to try loading
107 * @firmware_name: composite filename of ucode file to load
108 * @request_firmware_complete: the firmware has been obtained from user space
109 */
110struct iwl_drv {
111 struct list_head list;
112 struct iwl_fw fw;
113
114 struct iwl_op_mode *op_mode;
115 struct iwl_trans *trans;
116 struct device *dev;
117 const struct iwl_cfg *cfg;
118
119 int fw_index; /* firmware we're trying to load */
120 char firmware_name[32]; /* name of firmware file to load */
121
122 struct completion request_firmware_complete;
123
124#ifdef CONFIG_IWLWIFI_DEBUGFS
125 struct dentry *dbgfs_drv;
126 struct dentry *dbgfs_trans;
127 struct dentry *dbgfs_op_mode;
128#endif
129};
130
131enum {
132 DVM_OP_MODE = 0,
133 MVM_OP_MODE = 1,
134};
135
136/* Protects the table contents, i.e. the ops pointer & drv list */
137static struct mutex iwlwifi_opmode_table_mtx;
138static struct iwlwifi_opmode_table {
139 const char *name; /* name: iwldvm, iwlmvm, etc */
140 const struct iwl_op_mode_ops *ops; /* pointer to op_mode ops */
141 struct list_head drv; /* list of devices using this op_mode */
142} iwlwifi_opmode_table[] = { /* ops set when driver is initialized */
143 [DVM_OP_MODE] = { .name = "iwldvm", .ops = NULL },
144 [MVM_OP_MODE] = { .name = "iwlmvm", .ops = NULL },
145};
146
147#define IWL_DEFAULT_SCAN_CHANNELS 40
148
149/*
150 * struct fw_sec: Just for the image parsing process.
151 * For the fw storage we are using struct fw_desc.
152 */
153struct fw_sec {
154 const void *data; /* the sec data */
155 size_t size; /* section size */
156 u32 offset; /* offset of writing in the device */
157};
158
159static void iwl_free_fw_desc(struct iwl_drv *drv, struct fw_desc *desc)
160{
161 vfree(desc->data);
162 desc->data = NULL;
163 desc->len = 0;
164}
165
166static void iwl_free_fw_img(struct iwl_drv *drv, struct fw_img *img)
167{
168 int i;
169 for (i = 0; i < IWL_UCODE_SECTION_MAX; i++)
170 iwl_free_fw_desc(drv, &img->sec[i]);
171}
172
173static void iwl_dealloc_ucode(struct iwl_drv *drv)
174{
175 int i;
176
177 kfree(drv->fw.dbg_dest_tlv);
178 for (i = 0; i < ARRAY_SIZE(drv->fw.dbg_conf_tlv); i++)
179 kfree(drv->fw.dbg_conf_tlv[i]);
180 for (i = 0; i < ARRAY_SIZE(drv->fw.dbg_trigger_tlv); i++)
181 kfree(drv->fw.dbg_trigger_tlv[i]);
182
183 for (i = 0; i < IWL_UCODE_TYPE_MAX; i++)
184 iwl_free_fw_img(drv, drv->fw.img + i);
185}
186
187static int iwl_alloc_fw_desc(struct iwl_drv *drv, struct fw_desc *desc,
188 struct fw_sec *sec)
189{
190 void *data;
191
192 desc->data = NULL;
193
194 if (!sec || !sec->size)
195 return -EINVAL;
196
197 data = vmalloc(sec->size);
198 if (!data)
199 return -ENOMEM;
200
201 desc->len = sec->size;
202 desc->offset = sec->offset;
203 memcpy(data, sec->data, desc->len);
204 desc->data = data;
205
206 return 0;
207}
208
209static void iwl_req_fw_callback(const struct firmware *ucode_raw,
210 void *context);
211
212#define UCODE_EXPERIMENTAL_INDEX 100
213#define UCODE_EXPERIMENTAL_TAG "exp"
214
215static int iwl_request_firmware(struct iwl_drv *drv, bool first)
216{
217 const char *name_pre = drv->cfg->fw_name_pre;
218 char tag[8];
219
220 if (first) {
221#ifdef CONFIG_IWLWIFI_DEBUG_EXPERIMENTAL_UCODE
222 drv->fw_index = UCODE_EXPERIMENTAL_INDEX;
223 strcpy(tag, UCODE_EXPERIMENTAL_TAG);
224 } else if (drv->fw_index == UCODE_EXPERIMENTAL_INDEX) {
225#endif
226 drv->fw_index = drv->cfg->ucode_api_max;
227 sprintf(tag, "%d", drv->fw_index);
228 } else {
229 drv->fw_index--;
230 sprintf(tag, "%d", drv->fw_index);
231 }
232
233 if (drv->fw_index < drv->cfg->ucode_api_min) {
234 IWL_ERR(drv, "no suitable firmware found!\n");
235 return -ENOENT;
236 }
237
238 snprintf(drv->firmware_name, sizeof(drv->firmware_name), "%s%s.ucode",
239 name_pre, tag);
240
241 IWL_DEBUG_INFO(drv, "attempting to load firmware %s'%s'\n",
242 (drv->fw_index == UCODE_EXPERIMENTAL_INDEX)
243 ? "EXPERIMENTAL " : "",
244 drv->firmware_name);
245
246 return request_firmware_nowait(THIS_MODULE, 1, drv->firmware_name,
247 drv->trans->dev,
248 GFP_KERNEL, drv, iwl_req_fw_callback);
249}
250
251struct fw_img_parsing {
252 struct fw_sec sec[IWL_UCODE_SECTION_MAX];
253 int sec_counter;
254};
255
256/*
257 * struct fw_sec_parsing: to extract fw section and it's offset from tlv
258 */
259struct fw_sec_parsing {
260 __le32 offset;
261 const u8 data[];
262} __packed;
263
264/**
265 * struct iwl_tlv_calib_data - parse the default calib data from TLV
266 *
267 * @ucode_type: the uCode to which the following default calib relates.
268 * @calib: default calibrations.
269 */
270struct iwl_tlv_calib_data {
271 __le32 ucode_type;
272 struct iwl_tlv_calib_ctrl calib;
273} __packed;
274
275struct iwl_firmware_pieces {
276 struct fw_img_parsing img[IWL_UCODE_TYPE_MAX];
277
278 u32 init_evtlog_ptr, init_evtlog_size, init_errlog_ptr;
279 u32 inst_evtlog_ptr, inst_evtlog_size, inst_errlog_ptr;
280
281 /* FW debug data parsed for driver usage */
282 struct iwl_fw_dbg_dest_tlv *dbg_dest_tlv;
283 struct iwl_fw_dbg_conf_tlv *dbg_conf_tlv[FW_DBG_CONF_MAX];
284 size_t dbg_conf_tlv_len[FW_DBG_CONF_MAX];
285 struct iwl_fw_dbg_trigger_tlv *dbg_trigger_tlv[FW_DBG_TRIGGER_MAX];
286 size_t dbg_trigger_tlv_len[FW_DBG_TRIGGER_MAX];
287};
288
289/*
290 * These functions are just to extract uCode section data from the pieces
291 * structure.
292 */
293static struct fw_sec *get_sec(struct iwl_firmware_pieces *pieces,
294 enum iwl_ucode_type type,
295 int sec)
296{
297 return &pieces->img[type].sec[sec];
298}
299
300static void set_sec_data(struct iwl_firmware_pieces *pieces,
301 enum iwl_ucode_type type,
302 int sec,
303 const void *data)
304{
305 pieces->img[type].sec[sec].data = data;
306}
307
308static void set_sec_size(struct iwl_firmware_pieces *pieces,
309 enum iwl_ucode_type type,
310 int sec,
311 size_t size)
312{
313 pieces->img[type].sec[sec].size = size;
314}
315
316static size_t get_sec_size(struct iwl_firmware_pieces *pieces,
317 enum iwl_ucode_type type,
318 int sec)
319{
320 return pieces->img[type].sec[sec].size;
321}
322
323static void set_sec_offset(struct iwl_firmware_pieces *pieces,
324 enum iwl_ucode_type type,
325 int sec,
326 u32 offset)
327{
328 pieces->img[type].sec[sec].offset = offset;
329}
330
331static int iwl_store_cscheme(struct iwl_fw *fw, const u8 *data, const u32 len)
332{
333 int i, j;
334 struct iwl_fw_cscheme_list *l = (struct iwl_fw_cscheme_list *)data;
335 struct iwl_fw_cipher_scheme *fwcs;
336 struct ieee80211_cipher_scheme *cs;
337 u32 cipher;
338
339 if (len < sizeof(*l) ||
340 len < sizeof(l->size) + l->size * sizeof(l->cs[0]))
341 return -EINVAL;
342
343 for (i = 0, j = 0; i < IWL_UCODE_MAX_CS && i < l->size; i++) {
344 fwcs = &l->cs[j];
345 cipher = le32_to_cpu(fwcs->cipher);
346
347 /* we skip schemes with zero cipher suite selector */
348 if (!cipher)
349 continue;
350
351 cs = &fw->cs[j++];
352 cs->cipher = cipher;
353 cs->iftype = BIT(NL80211_IFTYPE_STATION);
354 cs->hdr_len = fwcs->hdr_len;
355 cs->pn_len = fwcs->pn_len;
356 cs->pn_off = fwcs->pn_off;
357 cs->key_idx_off = fwcs->key_idx_off;
358 cs->key_idx_mask = fwcs->key_idx_mask;
359 cs->key_idx_shift = fwcs->key_idx_shift;
360 cs->mic_len = fwcs->mic_len;
361 }
362
363 return 0;
364}
365
366static void iwl_store_gscan_capa(struct iwl_fw *fw, const u8 *data,
367 const u32 len)
368{
369 struct iwl_fw_gscan_capabilities *fw_capa = (void *)data;
370 struct iwl_gscan_capabilities *capa = &fw->gscan_capa;
371
372 capa->max_scan_cache_size = le32_to_cpu(fw_capa->max_scan_cache_size);
373 capa->max_scan_buckets = le32_to_cpu(fw_capa->max_scan_buckets);
374 capa->max_ap_cache_per_scan =
375 le32_to_cpu(fw_capa->max_ap_cache_per_scan);
376 capa->max_rssi_sample_size = le32_to_cpu(fw_capa->max_rssi_sample_size);
377 capa->max_scan_reporting_threshold =
378 le32_to_cpu(fw_capa->max_scan_reporting_threshold);
379 capa->max_hotlist_aps = le32_to_cpu(fw_capa->max_hotlist_aps);
380 capa->max_significant_change_aps =
381 le32_to_cpu(fw_capa->max_significant_change_aps);
382 capa->max_bssid_history_entries =
383 le32_to_cpu(fw_capa->max_bssid_history_entries);
384 capa->max_hotlist_ssids = le32_to_cpu(fw_capa->max_hotlist_ssids);
385 capa->max_number_epno_networks =
386 le32_to_cpu(fw_capa->max_number_epno_networks);
387 capa->max_number_epno_networks_by_ssid =
388 le32_to_cpu(fw_capa->max_number_epno_networks_by_ssid);
389 capa->max_number_of_white_listed_ssid =
390 le32_to_cpu(fw_capa->max_number_of_white_listed_ssid);
391 capa->max_number_of_black_listed_ssid =
392 le32_to_cpu(fw_capa->max_number_of_black_listed_ssid);
393}
394
395/*
396 * Gets uCode section from tlv.
397 */
398static int iwl_store_ucode_sec(struct iwl_firmware_pieces *pieces,
399 const void *data, enum iwl_ucode_type type,
400 int size)
401{
402 struct fw_img_parsing *img;
403 struct fw_sec *sec;
404 struct fw_sec_parsing *sec_parse;
405
406 if (WARN_ON(!pieces || !data || type >= IWL_UCODE_TYPE_MAX))
407 return -1;
408
409 sec_parse = (struct fw_sec_parsing *)data;
410
411 img = &pieces->img[type];
412 sec = &img->sec[img->sec_counter];
413
414 sec->offset = le32_to_cpu(sec_parse->offset);
415 sec->data = sec_parse->data;
416 sec->size = size - sizeof(sec_parse->offset);
417
418 ++img->sec_counter;
419
420 return 0;
421}
422
423static int iwl_set_default_calib(struct iwl_drv *drv, const u8 *data)
424{
425 struct iwl_tlv_calib_data *def_calib =
426 (struct iwl_tlv_calib_data *)data;
427 u32 ucode_type = le32_to_cpu(def_calib->ucode_type);
428 if (ucode_type >= IWL_UCODE_TYPE_MAX) {
429 IWL_ERR(drv, "Wrong ucode_type %u for default calibration.\n",
430 ucode_type);
431 return -EINVAL;
432 }
433 drv->fw.default_calib[ucode_type].flow_trigger =
434 def_calib->calib.flow_trigger;
435 drv->fw.default_calib[ucode_type].event_trigger =
436 def_calib->calib.event_trigger;
437
438 return 0;
439}
440
441static int iwl_set_ucode_api_flags(struct iwl_drv *drv, const u8 *data,
442 struct iwl_ucode_capabilities *capa)
443{
444 const struct iwl_ucode_api *ucode_api = (void *)data;
445 u32 api_index = le32_to_cpu(ucode_api->api_index);
446 u32 api_flags = le32_to_cpu(ucode_api->api_flags);
447 int i;
448
449 if (api_index >= DIV_ROUND_UP(NUM_IWL_UCODE_TLV_API, 32)) {
450 IWL_ERR(drv,
451 "api flags index %d larger than supported by driver\n",
452 api_index);
453 /* don't return an error so we can load FW that has more bits */
454 return 0;
455 }
456
457 for (i = 0; i < 32; i++) {
458 if (api_flags & BIT(i))
459 __set_bit(i + 32 * api_index, capa->_api);
460 }
461
462 return 0;
463}
464
465static int iwl_set_ucode_capabilities(struct iwl_drv *drv, const u8 *data,
466 struct iwl_ucode_capabilities *capa)
467{
468 const struct iwl_ucode_capa *ucode_capa = (void *)data;
469 u32 api_index = le32_to_cpu(ucode_capa->api_index);
470 u32 api_flags = le32_to_cpu(ucode_capa->api_capa);
471 int i;
472
473 if (api_index >= DIV_ROUND_UP(NUM_IWL_UCODE_TLV_CAPA, 32)) {
474 IWL_ERR(drv,
475 "capa flags index %d larger than supported by driver\n",
476 api_index);
477 /* don't return an error so we can load FW that has more bits */
478 return 0;
479 }
480
481 for (i = 0; i < 32; i++) {
482 if (api_flags & BIT(i))
483 __set_bit(i + 32 * api_index, capa->_capa);
484 }
485
486 return 0;
487}
488
489static int iwl_parse_v1_v2_firmware(struct iwl_drv *drv,
490 const struct firmware *ucode_raw,
491 struct iwl_firmware_pieces *pieces)
492{
493 struct iwl_ucode_header *ucode = (void *)ucode_raw->data;
494 u32 api_ver, hdr_size, build;
495 char buildstr[25];
496 const u8 *src;
497
498 drv->fw.ucode_ver = le32_to_cpu(ucode->ver);
499 api_ver = IWL_UCODE_API(drv->fw.ucode_ver);
500
501 switch (api_ver) {
502 default:
503 hdr_size = 28;
504 if (ucode_raw->size < hdr_size) {
505 IWL_ERR(drv, "File size too small!\n");
506 return -EINVAL;
507 }
508 build = le32_to_cpu(ucode->u.v2.build);
509 set_sec_size(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_INST,
510 le32_to_cpu(ucode->u.v2.inst_size));
511 set_sec_size(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_DATA,
512 le32_to_cpu(ucode->u.v2.data_size));
513 set_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_INST,
514 le32_to_cpu(ucode->u.v2.init_size));
515 set_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_DATA,
516 le32_to_cpu(ucode->u.v2.init_data_size));
517 src = ucode->u.v2.data;
518 break;
519 case 0:
520 case 1:
521 case 2:
522 hdr_size = 24;
523 if (ucode_raw->size < hdr_size) {
524 IWL_ERR(drv, "File size too small!\n");
525 return -EINVAL;
526 }
527 build = 0;
528 set_sec_size(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_INST,
529 le32_to_cpu(ucode->u.v1.inst_size));
530 set_sec_size(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_DATA,
531 le32_to_cpu(ucode->u.v1.data_size));
532 set_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_INST,
533 le32_to_cpu(ucode->u.v1.init_size));
534 set_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_DATA,
535 le32_to_cpu(ucode->u.v1.init_data_size));
536 src = ucode->u.v1.data;
537 break;
538 }
539
540 if (build)
541 sprintf(buildstr, " build %u%s", build,
542 (drv->fw_index == UCODE_EXPERIMENTAL_INDEX)
543 ? " (EXP)" : "");
544 else
545 buildstr[0] = '\0';
546
547 snprintf(drv->fw.fw_version,
548 sizeof(drv->fw.fw_version),
549 "%u.%u.%u.%u%s",
550 IWL_UCODE_MAJOR(drv->fw.ucode_ver),
551 IWL_UCODE_MINOR(drv->fw.ucode_ver),
552 IWL_UCODE_API(drv->fw.ucode_ver),
553 IWL_UCODE_SERIAL(drv->fw.ucode_ver),
554 buildstr);
555
556 /* Verify size of file vs. image size info in file's header */
557
558 if (ucode_raw->size != hdr_size +
559 get_sec_size(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_INST) +
560 get_sec_size(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_DATA) +
561 get_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_INST) +
562 get_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_DATA)) {
563
564 IWL_ERR(drv,
565 "uCode file size %d does not match expected size\n",
566 (int)ucode_raw->size);
567 return -EINVAL;
568 }
569
570
571 set_sec_data(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_INST, src);
572 src += get_sec_size(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_INST);
573 set_sec_offset(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_INST,
574 IWLAGN_RTC_INST_LOWER_BOUND);
575 set_sec_data(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_DATA, src);
576 src += get_sec_size(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_DATA);
577 set_sec_offset(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_DATA,
578 IWLAGN_RTC_DATA_LOWER_BOUND);
579 set_sec_data(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_INST, src);
580 src += get_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_INST);
581 set_sec_offset(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_INST,
582 IWLAGN_RTC_INST_LOWER_BOUND);
583 set_sec_data(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_DATA, src);
584 src += get_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_DATA);
585 set_sec_offset(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_DATA,
586 IWLAGN_RTC_DATA_LOWER_BOUND);
587 return 0;
588}
589
590static int iwl_parse_tlv_firmware(struct iwl_drv *drv,
591 const struct firmware *ucode_raw,
592 struct iwl_firmware_pieces *pieces,
593 struct iwl_ucode_capabilities *capa,
594 bool *usniffer_images)
595{
596 struct iwl_tlv_ucode_header *ucode = (void *)ucode_raw->data;
597 struct iwl_ucode_tlv *tlv;
598 size_t len = ucode_raw->size;
599 const u8 *data;
600 u32 tlv_len;
601 u32 usniffer_img;
602 enum iwl_ucode_tlv_type tlv_type;
603 const u8 *tlv_data;
604 char buildstr[25];
605 u32 build, paging_mem_size;
606 int num_of_cpus;
607 bool usniffer_req = false;
608 bool gscan_capa = false;
609
610 if (len < sizeof(*ucode)) {
611 IWL_ERR(drv, "uCode has invalid length: %zd\n", len);
612 return -EINVAL;
613 }
614
615 if (ucode->magic != cpu_to_le32(IWL_TLV_UCODE_MAGIC)) {
616 IWL_ERR(drv, "invalid uCode magic: 0X%x\n",
617 le32_to_cpu(ucode->magic));
618 return -EINVAL;
619 }
620
621 drv->fw.ucode_ver = le32_to_cpu(ucode->ver);
622 memcpy(drv->fw.human_readable, ucode->human_readable,
623 sizeof(drv->fw.human_readable));
624 build = le32_to_cpu(ucode->build);
625
626 if (build)
627 sprintf(buildstr, " build %u%s", build,
628 (drv->fw_index == UCODE_EXPERIMENTAL_INDEX)
629 ? " (EXP)" : "");
630 else
631 buildstr[0] = '\0';
632
633 snprintf(drv->fw.fw_version,
634 sizeof(drv->fw.fw_version),
635 "%u.%u.%u.%u%s",
636 IWL_UCODE_MAJOR(drv->fw.ucode_ver),
637 IWL_UCODE_MINOR(drv->fw.ucode_ver),
638 IWL_UCODE_API(drv->fw.ucode_ver),
639 IWL_UCODE_SERIAL(drv->fw.ucode_ver),
640 buildstr);
641
642 data = ucode->data;
643
644 len -= sizeof(*ucode);
645
646 while (len >= sizeof(*tlv)) {
647 len -= sizeof(*tlv);
648 tlv = (void *)data;
649
650 tlv_len = le32_to_cpu(tlv->length);
651 tlv_type = le32_to_cpu(tlv->type);
652 tlv_data = tlv->data;
653
654 if (len < tlv_len) {
655 IWL_ERR(drv, "invalid TLV len: %zd/%u\n",
656 len, tlv_len);
657 return -EINVAL;
658 }
659 len -= ALIGN(tlv_len, 4);
660 data += sizeof(*tlv) + ALIGN(tlv_len, 4);
661
662 switch (tlv_type) {
663 case IWL_UCODE_TLV_INST:
664 set_sec_data(pieces, IWL_UCODE_REGULAR,
665 IWL_UCODE_SECTION_INST, tlv_data);
666 set_sec_size(pieces, IWL_UCODE_REGULAR,
667 IWL_UCODE_SECTION_INST, tlv_len);
668 set_sec_offset(pieces, IWL_UCODE_REGULAR,
669 IWL_UCODE_SECTION_INST,
670 IWLAGN_RTC_INST_LOWER_BOUND);
671 break;
672 case IWL_UCODE_TLV_DATA:
673 set_sec_data(pieces, IWL_UCODE_REGULAR,
674 IWL_UCODE_SECTION_DATA, tlv_data);
675 set_sec_size(pieces, IWL_UCODE_REGULAR,
676 IWL_UCODE_SECTION_DATA, tlv_len);
677 set_sec_offset(pieces, IWL_UCODE_REGULAR,
678 IWL_UCODE_SECTION_DATA,
679 IWLAGN_RTC_DATA_LOWER_BOUND);
680 break;
681 case IWL_UCODE_TLV_INIT:
682 set_sec_data(pieces, IWL_UCODE_INIT,
683 IWL_UCODE_SECTION_INST, tlv_data);
684 set_sec_size(pieces, IWL_UCODE_INIT,
685 IWL_UCODE_SECTION_INST, tlv_len);
686 set_sec_offset(pieces, IWL_UCODE_INIT,
687 IWL_UCODE_SECTION_INST,
688 IWLAGN_RTC_INST_LOWER_BOUND);
689 break;
690 case IWL_UCODE_TLV_INIT_DATA:
691 set_sec_data(pieces, IWL_UCODE_INIT,
692 IWL_UCODE_SECTION_DATA, tlv_data);
693 set_sec_size(pieces, IWL_UCODE_INIT,
694 IWL_UCODE_SECTION_DATA, tlv_len);
695 set_sec_offset(pieces, IWL_UCODE_INIT,
696 IWL_UCODE_SECTION_DATA,
697 IWLAGN_RTC_DATA_LOWER_BOUND);
698 break;
699 case IWL_UCODE_TLV_BOOT:
700 IWL_ERR(drv, "Found unexpected BOOT ucode\n");
701 break;
702 case IWL_UCODE_TLV_PROBE_MAX_LEN:
703 if (tlv_len != sizeof(u32))
704 goto invalid_tlv_len;
705 capa->max_probe_length =
706 le32_to_cpup((__le32 *)tlv_data);
707 break;
708 case IWL_UCODE_TLV_PAN:
709 if (tlv_len)
710 goto invalid_tlv_len;
711 capa->flags |= IWL_UCODE_TLV_FLAGS_PAN;
712 break;
713 case IWL_UCODE_TLV_FLAGS:
714 /* must be at least one u32 */
715 if (tlv_len < sizeof(u32))
716 goto invalid_tlv_len;
717 /* and a proper number of u32s */
718 if (tlv_len % sizeof(u32))
719 goto invalid_tlv_len;
720 /*
721 * This driver only reads the first u32 as
722 * right now no more features are defined,
723 * if that changes then either the driver
724 * will not work with the new firmware, or
725 * it'll not take advantage of new features.
726 */
727 capa->flags = le32_to_cpup((__le32 *)tlv_data);
728 break;
729 case IWL_UCODE_TLV_API_CHANGES_SET:
730 if (tlv_len != sizeof(struct iwl_ucode_api))
731 goto invalid_tlv_len;
732 if (iwl_set_ucode_api_flags(drv, tlv_data, capa))
733 goto tlv_error;
734 break;
735 case IWL_UCODE_TLV_ENABLED_CAPABILITIES:
736 if (tlv_len != sizeof(struct iwl_ucode_capa))
737 goto invalid_tlv_len;
738 if (iwl_set_ucode_capabilities(drv, tlv_data, capa))
739 goto tlv_error;
740 break;
741 case IWL_UCODE_TLV_INIT_EVTLOG_PTR:
742 if (tlv_len != sizeof(u32))
743 goto invalid_tlv_len;
744 pieces->init_evtlog_ptr =
745 le32_to_cpup((__le32 *)tlv_data);
746 break;
747 case IWL_UCODE_TLV_INIT_EVTLOG_SIZE:
748 if (tlv_len != sizeof(u32))
749 goto invalid_tlv_len;
750 pieces->init_evtlog_size =
751 le32_to_cpup((__le32 *)tlv_data);
752 break;
753 case IWL_UCODE_TLV_INIT_ERRLOG_PTR:
754 if (tlv_len != sizeof(u32))
755 goto invalid_tlv_len;
756 pieces->init_errlog_ptr =
757 le32_to_cpup((__le32 *)tlv_data);
758 break;
759 case IWL_UCODE_TLV_RUNT_EVTLOG_PTR:
760 if (tlv_len != sizeof(u32))
761 goto invalid_tlv_len;
762 pieces->inst_evtlog_ptr =
763 le32_to_cpup((__le32 *)tlv_data);
764 break;
765 case IWL_UCODE_TLV_RUNT_EVTLOG_SIZE:
766 if (tlv_len != sizeof(u32))
767 goto invalid_tlv_len;
768 pieces->inst_evtlog_size =
769 le32_to_cpup((__le32 *)tlv_data);
770 break;
771 case IWL_UCODE_TLV_RUNT_ERRLOG_PTR:
772 if (tlv_len != sizeof(u32))
773 goto invalid_tlv_len;
774 pieces->inst_errlog_ptr =
775 le32_to_cpup((__le32 *)tlv_data);
776 break;
777 case IWL_UCODE_TLV_ENHANCE_SENS_TBL:
778 if (tlv_len)
779 goto invalid_tlv_len;
780 drv->fw.enhance_sensitivity_table = true;
781 break;
782 case IWL_UCODE_TLV_WOWLAN_INST:
783 set_sec_data(pieces, IWL_UCODE_WOWLAN,
784 IWL_UCODE_SECTION_INST, tlv_data);
785 set_sec_size(pieces, IWL_UCODE_WOWLAN,
786 IWL_UCODE_SECTION_INST, tlv_len);
787 set_sec_offset(pieces, IWL_UCODE_WOWLAN,
788 IWL_UCODE_SECTION_INST,
789 IWLAGN_RTC_INST_LOWER_BOUND);
790 break;
791 case IWL_UCODE_TLV_WOWLAN_DATA:
792 set_sec_data(pieces, IWL_UCODE_WOWLAN,
793 IWL_UCODE_SECTION_DATA, tlv_data);
794 set_sec_size(pieces, IWL_UCODE_WOWLAN,
795 IWL_UCODE_SECTION_DATA, tlv_len);
796 set_sec_offset(pieces, IWL_UCODE_WOWLAN,
797 IWL_UCODE_SECTION_DATA,
798 IWLAGN_RTC_DATA_LOWER_BOUND);
799 break;
800 case IWL_UCODE_TLV_PHY_CALIBRATION_SIZE:
801 if (tlv_len != sizeof(u32))
802 goto invalid_tlv_len;
803 capa->standard_phy_calibration_size =
804 le32_to_cpup((__le32 *)tlv_data);
805 break;
806 case IWL_UCODE_TLV_SEC_RT:
807 iwl_store_ucode_sec(pieces, tlv_data, IWL_UCODE_REGULAR,
808 tlv_len);
809 drv->fw.mvm_fw = true;
810 break;
811 case IWL_UCODE_TLV_SEC_INIT:
812 iwl_store_ucode_sec(pieces, tlv_data, IWL_UCODE_INIT,
813 tlv_len);
814 drv->fw.mvm_fw = true;
815 break;
816 case IWL_UCODE_TLV_SEC_WOWLAN:
817 iwl_store_ucode_sec(pieces, tlv_data, IWL_UCODE_WOWLAN,
818 tlv_len);
819 drv->fw.mvm_fw = true;
820 break;
821 case IWL_UCODE_TLV_DEF_CALIB:
822 if (tlv_len != sizeof(struct iwl_tlv_calib_data))
823 goto invalid_tlv_len;
824 if (iwl_set_default_calib(drv, tlv_data))
825 goto tlv_error;
826 break;
827 case IWL_UCODE_TLV_PHY_SKU:
828 if (tlv_len != sizeof(u32))
829 goto invalid_tlv_len;
830 drv->fw.phy_config = le32_to_cpup((__le32 *)tlv_data);
831 drv->fw.valid_tx_ant = (drv->fw.phy_config &
832 FW_PHY_CFG_TX_CHAIN) >>
833 FW_PHY_CFG_TX_CHAIN_POS;
834 drv->fw.valid_rx_ant = (drv->fw.phy_config &
835 FW_PHY_CFG_RX_CHAIN) >>
836 FW_PHY_CFG_RX_CHAIN_POS;
837 break;
838 case IWL_UCODE_TLV_SECURE_SEC_RT:
839 iwl_store_ucode_sec(pieces, tlv_data, IWL_UCODE_REGULAR,
840 tlv_len);
841 drv->fw.mvm_fw = true;
842 break;
843 case IWL_UCODE_TLV_SECURE_SEC_INIT:
844 iwl_store_ucode_sec(pieces, tlv_data, IWL_UCODE_INIT,
845 tlv_len);
846 drv->fw.mvm_fw = true;
847 break;
848 case IWL_UCODE_TLV_SECURE_SEC_WOWLAN:
849 iwl_store_ucode_sec(pieces, tlv_data, IWL_UCODE_WOWLAN,
850 tlv_len);
851 drv->fw.mvm_fw = true;
852 break;
853 case IWL_UCODE_TLV_NUM_OF_CPU:
854 if (tlv_len != sizeof(u32))
855 goto invalid_tlv_len;
856 num_of_cpus =
857 le32_to_cpup((__le32 *)tlv_data);
858
859 if (num_of_cpus == 2) {
860 drv->fw.img[IWL_UCODE_REGULAR].is_dual_cpus =
861 true;
862 drv->fw.img[IWL_UCODE_INIT].is_dual_cpus =
863 true;
864 drv->fw.img[IWL_UCODE_WOWLAN].is_dual_cpus =
865 true;
866 } else if ((num_of_cpus > 2) || (num_of_cpus < 1)) {
867 IWL_ERR(drv, "Driver support upto 2 CPUs\n");
868 return -EINVAL;
869 }
870 break;
871 case IWL_UCODE_TLV_CSCHEME:
872 if (iwl_store_cscheme(&drv->fw, tlv_data, tlv_len))
873 goto invalid_tlv_len;
874 break;
875 case IWL_UCODE_TLV_N_SCAN_CHANNELS:
876 if (tlv_len != sizeof(u32))
877 goto invalid_tlv_len;
878 capa->n_scan_channels =
879 le32_to_cpup((__le32 *)tlv_data);
880 break;
881 case IWL_UCODE_TLV_FW_VERSION: {
882 __le32 *ptr = (void *)tlv_data;
883 u32 major, minor;
884 u8 local_comp;
885
886 if (tlv_len != sizeof(u32) * 3)
887 goto invalid_tlv_len;
888
889 major = le32_to_cpup(ptr++);
890 minor = le32_to_cpup(ptr++);
891 local_comp = le32_to_cpup(ptr);
892
893 snprintf(drv->fw.fw_version,
894 sizeof(drv->fw.fw_version), "%u.%u.%u",
895 major, minor, local_comp);
896 break;
897 }
898 case IWL_UCODE_TLV_FW_DBG_DEST: {
899 struct iwl_fw_dbg_dest_tlv *dest = (void *)tlv_data;
900
901 if (pieces->dbg_dest_tlv) {
902 IWL_ERR(drv,
903 "dbg destination ignored, already exists\n");
904 break;
905 }
906
907 pieces->dbg_dest_tlv = dest;
908 IWL_INFO(drv, "Found debug destination: %s\n",
909 get_fw_dbg_mode_string(dest->monitor_mode));
910
911 drv->fw.dbg_dest_reg_num =
912 tlv_len - offsetof(struct iwl_fw_dbg_dest_tlv,
913 reg_ops);
914 drv->fw.dbg_dest_reg_num /=
915 sizeof(drv->fw.dbg_dest_tlv->reg_ops[0]);
916
917 break;
918 }
919 case IWL_UCODE_TLV_FW_DBG_CONF: {
920 struct iwl_fw_dbg_conf_tlv *conf = (void *)tlv_data;
921
922 if (!pieces->dbg_dest_tlv) {
923 IWL_ERR(drv,
924 "Ignore dbg config %d - no destination configured\n",
925 conf->id);
926 break;
927 }
928
929 if (conf->id >= ARRAY_SIZE(drv->fw.dbg_conf_tlv)) {
930 IWL_ERR(drv,
931 "Skip unknown configuration: %d\n",
932 conf->id);
933 break;
934 }
935
936 if (pieces->dbg_conf_tlv[conf->id]) {
937 IWL_ERR(drv,
938 "Ignore duplicate dbg config %d\n",
939 conf->id);
940 break;
941 }
942
943 if (conf->usniffer)
944 usniffer_req = true;
945
946 IWL_INFO(drv, "Found debug configuration: %d\n",
947 conf->id);
948
949 pieces->dbg_conf_tlv[conf->id] = conf;
950 pieces->dbg_conf_tlv_len[conf->id] = tlv_len;
951 break;
952 }
953 case IWL_UCODE_TLV_FW_DBG_TRIGGER: {
954 struct iwl_fw_dbg_trigger_tlv *trigger =
955 (void *)tlv_data;
956 u32 trigger_id = le32_to_cpu(trigger->id);
957
958 if (trigger_id >= ARRAY_SIZE(drv->fw.dbg_trigger_tlv)) {
959 IWL_ERR(drv,
960 "Skip unknown trigger: %u\n",
961 trigger->id);
962 break;
963 }
964
965 if (pieces->dbg_trigger_tlv[trigger_id]) {
966 IWL_ERR(drv,
967 "Ignore duplicate dbg trigger %u\n",
968 trigger->id);
969 break;
970 }
971
972 IWL_INFO(drv, "Found debug trigger: %u\n", trigger->id);
973
974 pieces->dbg_trigger_tlv[trigger_id] = trigger;
975 pieces->dbg_trigger_tlv_len[trigger_id] = tlv_len;
976 break;
977 }
978 case IWL_UCODE_TLV_SEC_RT_USNIFFER:
979 *usniffer_images = true;
980 iwl_store_ucode_sec(pieces, tlv_data,
981 IWL_UCODE_REGULAR_USNIFFER,
982 tlv_len);
983 break;
984 case IWL_UCODE_TLV_PAGING:
985 if (tlv_len != sizeof(u32))
986 goto invalid_tlv_len;
987 paging_mem_size = le32_to_cpup((__le32 *)tlv_data);
988
989 IWL_DEBUG_FW(drv,
990 "Paging: paging enabled (size = %u bytes)\n",
991 paging_mem_size);
992
993 if (paging_mem_size > MAX_PAGING_IMAGE_SIZE) {
994 IWL_ERR(drv,
995 "Paging: driver supports up to %lu bytes for paging image\n",
996 MAX_PAGING_IMAGE_SIZE);
997 return -EINVAL;
998 }
999
1000 if (paging_mem_size & (FW_PAGING_SIZE - 1)) {
1001 IWL_ERR(drv,
1002 "Paging: image isn't multiple %lu\n",
1003 FW_PAGING_SIZE);
1004 return -EINVAL;
1005 }
1006
1007 drv->fw.img[IWL_UCODE_REGULAR].paging_mem_size =
1008 paging_mem_size;
1009 usniffer_img = IWL_UCODE_REGULAR_USNIFFER;
1010 drv->fw.img[usniffer_img].paging_mem_size =
1011 paging_mem_size;
1012 break;
1013 case IWL_UCODE_TLV_SDIO_ADMA_ADDR:
1014 if (tlv_len != sizeof(u32))
1015 goto invalid_tlv_len;
1016 drv->fw.sdio_adma_addr =
1017 le32_to_cpup((__le32 *)tlv_data);
1018 break;
1019 case IWL_UCODE_TLV_FW_GSCAN_CAPA:
1020 /*
1021 * Don't return an error in case of a shorter tlv_len
1022 * to enable loading of FW that has an old format
1023 * of GSCAN capabilities TLV.
1024 */
1025 if (tlv_len < sizeof(struct iwl_fw_gscan_capabilities))
1026 break;
1027
1028 iwl_store_gscan_capa(&drv->fw, tlv_data, tlv_len);
1029 gscan_capa = true;
1030 break;
1031 default:
1032 IWL_DEBUG_INFO(drv, "unknown TLV: %d\n", tlv_type);
1033 break;
1034 }
1035 }
1036
1037 if (!fw_has_capa(capa, IWL_UCODE_TLV_CAPA_USNIFFER_UNIFIED) &&
1038 usniffer_req && !*usniffer_images) {
1039 IWL_ERR(drv,
1040 "user selected to work with usniffer but usniffer image isn't available in ucode package\n");
1041 return -EINVAL;
1042 }
1043
1044 if (len) {
1045 IWL_ERR(drv, "invalid TLV after parsing: %zd\n", len);
1046 iwl_print_hex_dump(drv, IWL_DL_FW, (u8 *)data, len);
1047 return -EINVAL;
1048 }
1049
1050 /*
1051 * If ucode advertises that it supports GSCAN but GSCAN
1052 * capabilities TLV is not present, or if it has an old format,
1053 * warn and continue without GSCAN.
1054 */
1055 if (fw_has_capa(capa, IWL_UCODE_TLV_CAPA_GSCAN_SUPPORT) &&
1056 !gscan_capa) {
1057 IWL_DEBUG_INFO(drv,
1058 "GSCAN is supported but capabilities TLV is unavailable\n");
1059 __clear_bit((__force long)IWL_UCODE_TLV_CAPA_GSCAN_SUPPORT,
1060 capa->_capa);
1061 }
1062
1063 return 0;
1064
1065 invalid_tlv_len:
1066 IWL_ERR(drv, "TLV %d has invalid size: %u\n", tlv_type, tlv_len);
1067 tlv_error:
1068 iwl_print_hex_dump(drv, IWL_DL_FW, tlv_data, tlv_len);
1069
1070 return -EINVAL;
1071}
1072
1073static int iwl_alloc_ucode(struct iwl_drv *drv,
1074 struct iwl_firmware_pieces *pieces,
1075 enum iwl_ucode_type type)
1076{
1077 int i;
1078 for (i = 0;
1079 i < IWL_UCODE_SECTION_MAX && get_sec_size(pieces, type, i);
1080 i++)
1081 if (iwl_alloc_fw_desc(drv, &(drv->fw.img[type].sec[i]),
1082 get_sec(pieces, type, i)))
1083 return -ENOMEM;
1084 return 0;
1085}
1086
1087static int validate_sec_sizes(struct iwl_drv *drv,
1088 struct iwl_firmware_pieces *pieces,
1089 const struct iwl_cfg *cfg)
1090{
1091 IWL_DEBUG_INFO(drv, "f/w package hdr runtime inst size = %Zd\n",
1092 get_sec_size(pieces, IWL_UCODE_REGULAR,
1093 IWL_UCODE_SECTION_INST));
1094 IWL_DEBUG_INFO(drv, "f/w package hdr runtime data size = %Zd\n",
1095 get_sec_size(pieces, IWL_UCODE_REGULAR,
1096 IWL_UCODE_SECTION_DATA));
1097 IWL_DEBUG_INFO(drv, "f/w package hdr init inst size = %Zd\n",
1098 get_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_INST));
1099 IWL_DEBUG_INFO(drv, "f/w package hdr init data size = %Zd\n",
1100 get_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_DATA));
1101
1102 /* Verify that uCode images will fit in card's SRAM. */
1103 if (get_sec_size(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_INST) >
1104 cfg->max_inst_size) {
1105 IWL_ERR(drv, "uCode instr len %Zd too large to fit in\n",
1106 get_sec_size(pieces, IWL_UCODE_REGULAR,
1107 IWL_UCODE_SECTION_INST));
1108 return -1;
1109 }
1110
1111 if (get_sec_size(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_DATA) >
1112 cfg->max_data_size) {
1113 IWL_ERR(drv, "uCode data len %Zd too large to fit in\n",
1114 get_sec_size(pieces, IWL_UCODE_REGULAR,
1115 IWL_UCODE_SECTION_DATA));
1116 return -1;
1117 }
1118
1119 if (get_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_INST) >
1120 cfg->max_inst_size) {
1121 IWL_ERR(drv, "uCode init instr len %Zd too large to fit in\n",
1122 get_sec_size(pieces, IWL_UCODE_INIT,
1123 IWL_UCODE_SECTION_INST));
1124 return -1;
1125 }
1126
1127 if (get_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_DATA) >
1128 cfg->max_data_size) {
1129 IWL_ERR(drv, "uCode init data len %Zd too large to fit in\n",
1130 get_sec_size(pieces, IWL_UCODE_REGULAR,
1131 IWL_UCODE_SECTION_DATA));
1132 return -1;
1133 }
1134 return 0;
1135}
1136
1137static struct iwl_op_mode *
1138_iwl_op_mode_start(struct iwl_drv *drv, struct iwlwifi_opmode_table *op)
1139{
1140 const struct iwl_op_mode_ops *ops = op->ops;
1141 struct dentry *dbgfs_dir = NULL;
1142 struct iwl_op_mode *op_mode = NULL;
1143
1144#ifdef CONFIG_IWLWIFI_DEBUGFS
1145 drv->dbgfs_op_mode = debugfs_create_dir(op->name,
1146 drv->dbgfs_drv);
1147 if (!drv->dbgfs_op_mode) {
1148 IWL_ERR(drv,
1149 "failed to create opmode debugfs directory\n");
1150 return op_mode;
1151 }
1152 dbgfs_dir = drv->dbgfs_op_mode;
1153#endif
1154
1155 op_mode = ops->start(drv->trans, drv->cfg, &drv->fw, dbgfs_dir);
1156
1157#ifdef CONFIG_IWLWIFI_DEBUGFS
1158 if (!op_mode) {
1159 debugfs_remove_recursive(drv->dbgfs_op_mode);
1160 drv->dbgfs_op_mode = NULL;
1161 }
1162#endif
1163
1164 return op_mode;
1165}
1166
1167static void _iwl_op_mode_stop(struct iwl_drv *drv)
1168{
1169 /* op_mode can be NULL if its start failed */
1170 if (drv->op_mode) {
1171 iwl_op_mode_stop(drv->op_mode);
1172 drv->op_mode = NULL;
1173
1174#ifdef CONFIG_IWLWIFI_DEBUGFS
1175 debugfs_remove_recursive(drv->dbgfs_op_mode);
1176 drv->dbgfs_op_mode = NULL;
1177#endif
1178 }
1179}
1180
1181/**
1182 * iwl_req_fw_callback - callback when firmware was loaded
1183 *
1184 * If loaded successfully, copies the firmware into buffers
1185 * for the card to fetch (via DMA).
1186 */
1187static void iwl_req_fw_callback(const struct firmware *ucode_raw, void *context)
1188{
1189 struct iwl_drv *drv = context;
1190 struct iwl_fw *fw = &drv->fw;
1191 struct iwl_ucode_header *ucode;
1192 struct iwlwifi_opmode_table *op;
1193 int err;
1194 struct iwl_firmware_pieces *pieces;
1195 const unsigned int api_max = drv->cfg->ucode_api_max;
1196 unsigned int api_ok = drv->cfg->ucode_api_ok;
1197 const unsigned int api_min = drv->cfg->ucode_api_min;
1198 size_t trigger_tlv_sz[FW_DBG_TRIGGER_MAX];
1199 u32 api_ver;
1200 int i;
1201 bool load_module = false;
1202 bool usniffer_images = false;
1203
1204 fw->ucode_capa.max_probe_length = IWL_DEFAULT_MAX_PROBE_LENGTH;
1205 fw->ucode_capa.standard_phy_calibration_size =
1206 IWL_DEFAULT_STANDARD_PHY_CALIBRATE_TBL_SIZE;
1207 fw->ucode_capa.n_scan_channels = IWL_DEFAULT_SCAN_CHANNELS;
1208
1209 if (!api_ok)
1210 api_ok = api_max;
1211
1212 pieces = kzalloc(sizeof(*pieces), GFP_KERNEL);
1213 if (!pieces)
1214 return;
1215
1216 if (!ucode_raw) {
1217 if (drv->fw_index <= api_ok)
1218 IWL_ERR(drv,
1219 "request for firmware file '%s' failed.\n",
1220 drv->firmware_name);
1221 goto try_again;
1222 }
1223
1224 IWL_DEBUG_INFO(drv, "Loaded firmware file '%s' (%zd bytes).\n",
1225 drv->firmware_name, ucode_raw->size);
1226
1227 /* Make sure that we got at least the API version number */
1228 if (ucode_raw->size < 4) {
1229 IWL_ERR(drv, "File size way too small!\n");
1230 goto try_again;
1231 }
1232
1233 /* Data from ucode file: header followed by uCode images */
1234 ucode = (struct iwl_ucode_header *)ucode_raw->data;
1235
1236 if (ucode->ver)
1237 err = iwl_parse_v1_v2_firmware(drv, ucode_raw, pieces);
1238 else
1239 err = iwl_parse_tlv_firmware(drv, ucode_raw, pieces,
1240 &fw->ucode_capa, &usniffer_images);
1241
1242 if (err)
1243 goto try_again;
1244
1245 if (fw_has_api(&drv->fw.ucode_capa, IWL_UCODE_TLV_API_NEW_VERSION))
1246 api_ver = drv->fw.ucode_ver;
1247 else
1248 api_ver = IWL_UCODE_API(drv->fw.ucode_ver);
1249
1250 /*
1251 * api_ver should match the api version forming part of the
1252 * firmware filename ... but we don't check for that and only rely
1253 * on the API version read from firmware header from here on forward
1254 */
1255 /* no api version check required for experimental uCode */
1256 if (drv->fw_index != UCODE_EXPERIMENTAL_INDEX) {
1257 if (api_ver < api_min || api_ver > api_max) {
1258 IWL_ERR(drv,
1259 "Driver unable to support your firmware API. "
1260 "Driver supports v%u, firmware is v%u.\n",
1261 api_max, api_ver);
1262 goto try_again;
1263 }
1264
1265 if (api_ver < api_ok) {
1266 if (api_ok != api_max)
1267 IWL_ERR(drv, "Firmware has old API version, "
1268 "expected v%u through v%u, got v%u.\n",
1269 api_ok, api_max, api_ver);
1270 else
1271 IWL_ERR(drv, "Firmware has old API version, "
1272 "expected v%u, got v%u.\n",
1273 api_max, api_ver);
1274 IWL_ERR(drv, "New firmware can be obtained from "
1275 "http://www.intellinuxwireless.org/.\n");
1276 }
1277 }
1278
1279 /*
1280 * In mvm uCode there is no difference between data and instructions
1281 * sections.
1282 */
1283 if (!fw->mvm_fw && validate_sec_sizes(drv, pieces, drv->cfg))
1284 goto try_again;
1285
1286 /* Allocate ucode buffers for card's bus-master loading ... */
1287
1288 /* Runtime instructions and 2 copies of data:
1289 * 1) unmodified from disk
1290 * 2) backup cache for save/restore during power-downs */
1291 for (i = 0; i < IWL_UCODE_TYPE_MAX; i++)
1292 if (iwl_alloc_ucode(drv, pieces, i))
1293 goto out_free_fw;
1294
1295 if (pieces->dbg_dest_tlv) {
1296 drv->fw.dbg_dest_tlv =
1297 kmemdup(pieces->dbg_dest_tlv,
1298 sizeof(*pieces->dbg_dest_tlv) +
1299 sizeof(pieces->dbg_dest_tlv->reg_ops[0]) *
1300 drv->fw.dbg_dest_reg_num, GFP_KERNEL);
1301
1302 if (!drv->fw.dbg_dest_tlv)
1303 goto out_free_fw;
1304 }
1305
1306 for (i = 0; i < ARRAY_SIZE(drv->fw.dbg_conf_tlv); i++) {
1307 if (pieces->dbg_conf_tlv[i]) {
1308 drv->fw.dbg_conf_tlv_len[i] =
1309 pieces->dbg_conf_tlv_len[i];
1310 drv->fw.dbg_conf_tlv[i] =
1311 kmemdup(pieces->dbg_conf_tlv[i],
1312 drv->fw.dbg_conf_tlv_len[i],
1313 GFP_KERNEL);
1314 if (!drv->fw.dbg_conf_tlv[i])
1315 goto out_free_fw;
1316 }
1317 }
1318
1319 memset(&trigger_tlv_sz, 0xff, sizeof(trigger_tlv_sz));
1320
1321 trigger_tlv_sz[FW_DBG_TRIGGER_MISSED_BEACONS] =
1322 sizeof(struct iwl_fw_dbg_trigger_missed_bcon);
1323 trigger_tlv_sz[FW_DBG_TRIGGER_CHANNEL_SWITCH] = 0;
1324 trigger_tlv_sz[FW_DBG_TRIGGER_FW_NOTIF] =
1325 sizeof(struct iwl_fw_dbg_trigger_cmd);
1326 trigger_tlv_sz[FW_DBG_TRIGGER_MLME] =
1327 sizeof(struct iwl_fw_dbg_trigger_mlme);
1328 trigger_tlv_sz[FW_DBG_TRIGGER_STATS] =
1329 sizeof(struct iwl_fw_dbg_trigger_stats);
1330 trigger_tlv_sz[FW_DBG_TRIGGER_RSSI] =
1331 sizeof(struct iwl_fw_dbg_trigger_low_rssi);
1332 trigger_tlv_sz[FW_DBG_TRIGGER_TXQ_TIMERS] =
1333 sizeof(struct iwl_fw_dbg_trigger_txq_timer);
1334 trigger_tlv_sz[FW_DBG_TRIGGER_TIME_EVENT] =
1335 sizeof(struct iwl_fw_dbg_trigger_time_event);
1336 trigger_tlv_sz[FW_DBG_TRIGGER_BA] =
1337 sizeof(struct iwl_fw_dbg_trigger_ba);
1338 trigger_tlv_sz[FW_DBG_TRIGGER_TDLS] =
1339 sizeof(struct iwl_fw_dbg_trigger_tdls);
1340
1341 for (i = 0; i < ARRAY_SIZE(drv->fw.dbg_trigger_tlv); i++) {
1342 if (pieces->dbg_trigger_tlv[i]) {
1343 /*
1344 * If the trigger isn't long enough, WARN and exit.
1345 * Someone is trying to debug something and he won't
1346 * be able to catch the bug he is trying to chase.
1347 * We'd better be noisy to be sure he knows what's
1348 * going on.
1349 */
1350 if (WARN_ON(pieces->dbg_trigger_tlv_len[i] <
1351 (trigger_tlv_sz[i] +
1352 sizeof(struct iwl_fw_dbg_trigger_tlv))))
1353 goto out_free_fw;
1354 drv->fw.dbg_trigger_tlv_len[i] =
1355 pieces->dbg_trigger_tlv_len[i];
1356 drv->fw.dbg_trigger_tlv[i] =
1357 kmemdup(pieces->dbg_trigger_tlv[i],
1358 drv->fw.dbg_trigger_tlv_len[i],
1359 GFP_KERNEL);
1360 if (!drv->fw.dbg_trigger_tlv[i])
1361 goto out_free_fw;
1362 }
1363 }
1364
1365 /* Now that we can no longer fail, copy information */
1366
1367 /*
1368 * The (size - 16) / 12 formula is based on the information recorded
1369 * for each event, which is of mode 1 (including timestamp) for all
1370 * new microcodes that include this information.
1371 */
1372 fw->init_evtlog_ptr = pieces->init_evtlog_ptr;
1373 if (pieces->init_evtlog_size)
1374 fw->init_evtlog_size = (pieces->init_evtlog_size - 16)/12;
1375 else
1376 fw->init_evtlog_size =
1377 drv->cfg->base_params->max_event_log_size;
1378 fw->init_errlog_ptr = pieces->init_errlog_ptr;
1379 fw->inst_evtlog_ptr = pieces->inst_evtlog_ptr;
1380 if (pieces->inst_evtlog_size)
1381 fw->inst_evtlog_size = (pieces->inst_evtlog_size - 16)/12;
1382 else
1383 fw->inst_evtlog_size =
1384 drv->cfg->base_params->max_event_log_size;
1385 fw->inst_errlog_ptr = pieces->inst_errlog_ptr;
1386
1387 /*
1388 * figure out the offset of chain noise reset and gain commands
1389 * base on the size of standard phy calibration commands table size
1390 */
1391 if (fw->ucode_capa.standard_phy_calibration_size >
1392 IWL_MAX_PHY_CALIBRATE_TBL_SIZE)
1393 fw->ucode_capa.standard_phy_calibration_size =
1394 IWL_MAX_STANDARD_PHY_CALIBRATE_TBL_SIZE;
1395
1396 /* We have our copies now, allow OS release its copies */
1397 release_firmware(ucode_raw);
1398
1399 mutex_lock(&iwlwifi_opmode_table_mtx);
1400 if (fw->mvm_fw)
1401 op = &iwlwifi_opmode_table[MVM_OP_MODE];
1402 else
1403 op = &iwlwifi_opmode_table[DVM_OP_MODE];
1404
1405 IWL_INFO(drv, "loaded firmware version %s op_mode %s\n",
1406 drv->fw.fw_version, op->name);
1407
1408 /* add this device to the list of devices using this op_mode */
1409 list_add_tail(&drv->list, &op->drv);
1410
1411 if (op->ops) {
1412 drv->op_mode = _iwl_op_mode_start(drv, op);
1413
1414 if (!drv->op_mode) {
1415 mutex_unlock(&iwlwifi_opmode_table_mtx);
1416 goto out_unbind;
1417 }
1418 } else {
1419 load_module = true;
1420 }
1421 mutex_unlock(&iwlwifi_opmode_table_mtx);
1422
1423 /*
1424 * Complete the firmware request last so that
1425 * a driver unbind (stop) doesn't run while we
1426 * are doing the start() above.
1427 */
1428 complete(&drv->request_firmware_complete);
1429
1430 /*
1431 * Load the module last so we don't block anything
1432 * else from proceeding if the module fails to load
1433 * or hangs loading.
1434 */
1435 if (load_module) {
1436 err = request_module("%s", op->name);
1437#ifdef CONFIG_IWLWIFI_OPMODE_MODULAR
1438 if (err)
1439 IWL_ERR(drv,
1440 "failed to load module %s (error %d), is dynamic loading enabled?\n",
1441 op->name, err);
1442#endif
1443 }
1444 kfree(pieces);
1445 return;
1446
1447 try_again:
1448 /* try next, if any */
1449 release_firmware(ucode_raw);
1450 if (iwl_request_firmware(drv, false))
1451 goto out_unbind;
1452 kfree(pieces);
1453 return;
1454
1455 out_free_fw:
1456 IWL_ERR(drv, "failed to allocate pci memory\n");
1457 iwl_dealloc_ucode(drv);
1458 release_firmware(ucode_raw);
1459 out_unbind:
1460 kfree(pieces);
1461 complete(&drv->request_firmware_complete);
1462 device_release_driver(drv->trans->dev);
1463}
1464
1465struct iwl_drv *iwl_drv_start(struct iwl_trans *trans,
1466 const struct iwl_cfg *cfg)
1467{
1468 struct iwl_drv *drv;
1469 int ret;
1470
1471 drv = kzalloc(sizeof(*drv), GFP_KERNEL);
1472 if (!drv) {
1473 ret = -ENOMEM;
1474 goto err;
1475 }
1476
1477 drv->trans = trans;
1478 drv->dev = trans->dev;
1479 drv->cfg = cfg;
1480
1481 init_completion(&drv->request_firmware_complete);
1482 INIT_LIST_HEAD(&drv->list);
1483
1484#ifdef CONFIG_IWLWIFI_DEBUGFS
1485 /* Create the device debugfs entries. */
1486 drv->dbgfs_drv = debugfs_create_dir(dev_name(trans->dev),
1487 iwl_dbgfs_root);
1488
1489 if (!drv->dbgfs_drv) {
1490 IWL_ERR(drv, "failed to create debugfs directory\n");
1491 ret = -ENOMEM;
1492 goto err_free_drv;
1493 }
1494
1495 /* Create transport layer debugfs dir */
1496 drv->trans->dbgfs_dir = debugfs_create_dir("trans", drv->dbgfs_drv);
1497
1498 if (!drv->trans->dbgfs_dir) {
1499 IWL_ERR(drv, "failed to create transport debugfs directory\n");
1500 ret = -ENOMEM;
1501 goto err_free_dbgfs;
1502 }
1503#endif
1504
1505 ret = iwl_request_firmware(drv, true);
1506 if (ret) {
1507 IWL_ERR(trans, "Couldn't request the fw\n");
1508 goto err_fw;
1509 }
1510
1511 return drv;
1512
1513err_fw:
1514#ifdef CONFIG_IWLWIFI_DEBUGFS
1515err_free_dbgfs:
1516 debugfs_remove_recursive(drv->dbgfs_drv);
1517err_free_drv:
1518#endif
1519 kfree(drv);
1520err:
1521 return ERR_PTR(ret);
1522}
1523
1524void iwl_drv_stop(struct iwl_drv *drv)
1525{
1526 wait_for_completion(&drv->request_firmware_complete);
1527
1528 _iwl_op_mode_stop(drv);
1529
1530 iwl_dealloc_ucode(drv);
1531
1532 mutex_lock(&iwlwifi_opmode_table_mtx);
1533 /*
1534 * List is empty (this item wasn't added)
1535 * when firmware loading failed -- in that
1536 * case we can't remove it from any list.
1537 */
1538 if (!list_empty(&drv->list))
1539 list_del(&drv->list);
1540 mutex_unlock(&iwlwifi_opmode_table_mtx);
1541
1542#ifdef CONFIG_IWLWIFI_DEBUGFS
1543 debugfs_remove_recursive(drv->dbgfs_drv);
1544#endif
1545
1546 kfree(drv);
1547}
1548
1549
1550/* shared module parameters */
1551struct iwl_mod_params iwlwifi_mod_params = {
1552 .restart_fw = true,
1553 .bt_coex_active = true,
1554 .power_level = IWL_POWER_INDEX_1,
1555 .d0i3_disable = true,
1556 .d0i3_entry_delay = 1000,
1557#ifndef CONFIG_IWLWIFI_UAPSD
1558 .uapsd_disable = true,
1559#endif /* CONFIG_IWLWIFI_UAPSD */
1560 /* the rest are 0 by default */
1561};
1562IWL_EXPORT_SYMBOL(iwlwifi_mod_params);
1563
1564int iwl_opmode_register(const char *name, const struct iwl_op_mode_ops *ops)
1565{
1566 int i;
1567 struct iwl_drv *drv;
1568 struct iwlwifi_opmode_table *op;
1569
1570 mutex_lock(&iwlwifi_opmode_table_mtx);
1571 for (i = 0; i < ARRAY_SIZE(iwlwifi_opmode_table); i++) {
1572 op = &iwlwifi_opmode_table[i];
1573 if (strcmp(op->name, name))
1574 continue;
1575 op->ops = ops;
1576 /* TODO: need to handle exceptional case */
1577 list_for_each_entry(drv, &op->drv, list)
1578 drv->op_mode = _iwl_op_mode_start(drv, op);
1579
1580 mutex_unlock(&iwlwifi_opmode_table_mtx);
1581 return 0;
1582 }
1583 mutex_unlock(&iwlwifi_opmode_table_mtx);
1584 return -EIO;
1585}
1586IWL_EXPORT_SYMBOL(iwl_opmode_register);
1587
1588void iwl_opmode_deregister(const char *name)
1589{
1590 int i;
1591 struct iwl_drv *drv;
1592
1593 mutex_lock(&iwlwifi_opmode_table_mtx);
1594 for (i = 0; i < ARRAY_SIZE(iwlwifi_opmode_table); i++) {
1595 if (strcmp(iwlwifi_opmode_table[i].name, name))
1596 continue;
1597 iwlwifi_opmode_table[i].ops = NULL;
1598
1599 /* call the stop routine for all devices */
1600 list_for_each_entry(drv, &iwlwifi_opmode_table[i].drv, list)
1601 _iwl_op_mode_stop(drv);
1602
1603 mutex_unlock(&iwlwifi_opmode_table_mtx);
1604 return;
1605 }
1606 mutex_unlock(&iwlwifi_opmode_table_mtx);
1607}
1608IWL_EXPORT_SYMBOL(iwl_opmode_deregister);
1609
1610static int __init iwl_drv_init(void)
1611{
1612 int i;
1613
1614 mutex_init(&iwlwifi_opmode_table_mtx);
1615
1616 for (i = 0; i < ARRAY_SIZE(iwlwifi_opmode_table); i++)
1617 INIT_LIST_HEAD(&iwlwifi_opmode_table[i].drv);
1618
1619 pr_info(DRV_DESCRIPTION "\n");
1620 pr_info(DRV_COPYRIGHT "\n");
1621
1622#ifdef CONFIG_IWLWIFI_DEBUGFS
1623 /* Create the root of iwlwifi debugfs subsystem. */
1624 iwl_dbgfs_root = debugfs_create_dir(DRV_NAME, NULL);
1625
1626 if (!iwl_dbgfs_root)
1627 return -EFAULT;
1628#endif
1629
1630 return iwl_pci_register_driver();
1631}
1632module_init(iwl_drv_init);
1633
1634static void __exit iwl_drv_exit(void)
1635{
1636 iwl_pci_unregister_driver();
1637
1638#ifdef CONFIG_IWLWIFI_DEBUGFS
1639 debugfs_remove_recursive(iwl_dbgfs_root);
1640#endif
1641}
1642module_exit(iwl_drv_exit);
1643
1644#ifdef CONFIG_IWLWIFI_DEBUG
1645module_param_named(debug, iwlwifi_mod_params.debug_level, uint,
1646 S_IRUGO | S_IWUSR);
1647MODULE_PARM_DESC(debug, "debug output mask");
1648#endif
1649
1650module_param_named(swcrypto, iwlwifi_mod_params.sw_crypto, int, S_IRUGO);
1651MODULE_PARM_DESC(swcrypto, "using crypto in software (default 0 [hardware])");
1652module_param_named(11n_disable, iwlwifi_mod_params.disable_11n, uint, S_IRUGO);
1653MODULE_PARM_DESC(11n_disable,
1654 "disable 11n functionality, bitmap: 1: full, 2: disable agg TX, 4: disable agg RX, 8 enable agg TX");
1655module_param_named(amsdu_size, iwlwifi_mod_params.amsdu_size,
1656 int, S_IRUGO);
1657MODULE_PARM_DESC(amsdu_size, "amsdu size 0:4K 1:8K 2:12K (default 0)");
1658module_param_named(fw_restart, iwlwifi_mod_params.restart_fw, bool, S_IRUGO);
1659MODULE_PARM_DESC(fw_restart, "restart firmware in case of error (default true)");
1660
1661module_param_named(antenna_coupling, iwlwifi_mod_params.ant_coupling,
1662 int, S_IRUGO);
1663MODULE_PARM_DESC(antenna_coupling,
1664 "specify antenna coupling in dB (default: 0 dB)");
1665
1666module_param_named(nvm_file, iwlwifi_mod_params.nvm_file, charp, S_IRUGO);
1667MODULE_PARM_DESC(nvm_file, "NVM file name");
1668
1669module_param_named(d0i3_disable, iwlwifi_mod_params.d0i3_disable,
1670 bool, S_IRUGO);
1671MODULE_PARM_DESC(d0i3_disable, "disable d0i3 functionality (default: Y)");
1672
1673module_param_named(lar_disable, iwlwifi_mod_params.lar_disable,
1674 bool, S_IRUGO);
1675MODULE_PARM_DESC(lar_disable, "disable LAR functionality (default: N)");
1676
1677module_param_named(uapsd_disable, iwlwifi_mod_params.uapsd_disable,
1678 bool, S_IRUGO | S_IWUSR);
1679#ifdef CONFIG_IWLWIFI_UAPSD
1680MODULE_PARM_DESC(uapsd_disable, "disable U-APSD functionality (default: N)");
1681#else
1682MODULE_PARM_DESC(uapsd_disable, "disable U-APSD functionality (default: Y)");
1683#endif
1684
1685/*
1686 * set bt_coex_active to true, uCode will do kill/defer
1687 * every time the priority line is asserted (BT is sending signals on the
1688 * priority line in the PCIx).
1689 * set bt_coex_active to false, uCode will ignore the BT activity and
1690 * perform the normal operation
1691 *
1692 * User might experience transmit issue on some platform due to WiFi/BT
1693 * co-exist problem. The possible behaviors are:
1694 * Able to scan and finding all the available AP
1695 * Not able to associate with any AP
1696 * On those platforms, WiFi communication can be restored by set
1697 * "bt_coex_active" module parameter to "false"
1698 *
1699 * default: bt_coex_active = true (BT_COEX_ENABLE)
1700 */
1701module_param_named(bt_coex_active, iwlwifi_mod_params.bt_coex_active,
1702 bool, S_IRUGO);
1703MODULE_PARM_DESC(bt_coex_active, "enable wifi/bt co-exist (default: enable)");
1704
1705module_param_named(led_mode, iwlwifi_mod_params.led_mode, int, S_IRUGO);
1706MODULE_PARM_DESC(led_mode, "0=system default, "
1707 "1=On(RF On)/Off(RF Off), 2=blinking, 3=Off (default: 0)");
1708
1709module_param_named(power_save, iwlwifi_mod_params.power_save,
1710 bool, S_IRUGO);
1711MODULE_PARM_DESC(power_save,
1712 "enable WiFi power management (default: disable)");
1713
1714module_param_named(power_level, iwlwifi_mod_params.power_level,
1715 int, S_IRUGO);
1716MODULE_PARM_DESC(power_level,
1717 "default power save level (range from 1 - 5, default: 1)");
1718
1719module_param_named(fw_monitor, iwlwifi_mod_params.fw_monitor, bool, S_IRUGO);
1720MODULE_PARM_DESC(fw_monitor,
1721 "firmware monitor - to debug FW (default: false - needs lots of memory)");
1722
1723module_param_named(d0i3_timeout, iwlwifi_mod_params.d0i3_entry_delay,
1724 uint, S_IRUGO);
1725MODULE_PARM_DESC(d0i3_timeout, "Timeout to D0i3 entry when idle (ms)");
1726
1727module_param_named(disable_11ac, iwlwifi_mod_params.disable_11ac, bool,
1728 S_IRUGO);
1729MODULE_PARM_DESC(disable_11ac, "Disable VHT capabilities");