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fix a kmap leak in virtio_console
[linux/fpc-iii.git] / drivers / net / wireless / iwlwifi / iwl-drv.c
blobc3728163be463224b4e3eb38b5573aa85370e193
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 *
10 * This program is free software; you can redistribute it and/or modify
11 * it under the terms of version 2 of the GNU General Public License as
12 * published by the Free Software Foundation.
13 *
14 * This program is distributed in the hope that it will be useful, but
15 * WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
17 * General Public License for more details.
18 *
19 * You should have received a copy of the GNU General Public License
20 * along with this program; if not, write to the Free Software
21 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110,
22 * USA
23 *
24 * The full GNU General Public License is included in this distribution
25 * in the file called COPYING.
26 *
27 * Contact Information:
28 * Intel Linux Wireless <ilw@linux.intel.com>
29 * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
30 *
31 * BSD LICENSE
32 *
33 * Copyright(c) 2005 - 2014 Intel Corporation. All rights reserved.
34 * All rights reserved.
35 *
36 * Redistribution and use in source and binary forms, with or without
37 * modification, are permitted provided that the following conditions
38 * are met:
39 *
40 * * Redistributions of source code must retain the above copyright
41 * notice, this list of conditions and the following disclaimer.
42 * * Redistributions in binary form must reproduce the above copyright
43 * notice, this list of conditions and the following disclaimer in
44 * the documentation and/or other materials provided with the
45 * distribution.
46 * * Neither the name Intel Corporation nor the names of its
47 * contributors may be used to endorse or promote products derived
48 * from this software without specific prior written permission.
49 *
50 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
51 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
52 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
53 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
54 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
55 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
56 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
57 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
58 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
59 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
60 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
61 *
62 *****************************************************************************/
63 #include <linux/completion.h>
64 #include <linux/dma-mapping.h>
65 #include <linux/firmware.h>
66 #include <linux/module.h>
67 #include <linux/vmalloc.h>
68
69 #include "iwl-drv.h"
70 #include "iwl-debug.h"
71 #include "iwl-trans.h"
72 #include "iwl-op-mode.h"
73 #include "iwl-agn-hw.h"
74 #include "iwl-fw.h"
75 #include "iwl-config.h"
76 #include "iwl-modparams.h"
77
78 /* private includes */
79 #include "iwl-fw-file.h"
80
81 /******************************************************************************
82 *
83 * module boiler plate
84 *
85 ******************************************************************************/
86
87 /*
88 * module name, copyright, version, etc.
89 */
90 #define DRV_DESCRIPTION "Intel(R) Wireless WiFi driver for Linux"
91
92 #ifdef CONFIG_IWLWIFI_DEBUG
93 #define VD "d"
94 #else
95 #define VD
96 #endif
97
98 #define DRV_VERSION IWLWIFI_VERSION VD
99
100 MODULE_DESCRIPTION(DRV_DESCRIPTION);
101 MODULE_VERSION(DRV_VERSION);
102 MODULE_AUTHOR(DRV_COPYRIGHT " " DRV_AUTHOR);
103 MODULE_LICENSE("GPL");
104
105 #ifdef CONFIG_IWLWIFI_DEBUGFS
106 static struct dentry *iwl_dbgfs_root;
107 #endif
108
109 /**
110 * struct iwl_drv - drv common data
111 * @list: list of drv structures using this opmode
112 * @fw: the iwl_fw structure
113 * @op_mode: the running op_mode
114 * @trans: transport layer
115 * @dev: for debug prints only
116 * @cfg: configuration struct
117 * @fw_index: firmware revision to try loading
118 * @firmware_name: composite filename of ucode file to load
119 * @request_firmware_complete: the firmware has been obtained from user space
120 */
121 struct iwl_drv {
122 struct list_head list;
123 struct iwl_fw fw;
124
125 struct iwl_op_mode *op_mode;
126 struct iwl_trans *trans;
127 struct device *dev;
128 const struct iwl_cfg *cfg;
129
130 int fw_index; /* firmware we're trying to load */
131 char firmware_name[25]; /* name of firmware file to load */
132
133 struct completion request_firmware_complete;
134
135 #ifdef CONFIG_IWLWIFI_DEBUGFS
136 struct dentry *dbgfs_drv;
137 struct dentry *dbgfs_trans;
138 struct dentry *dbgfs_op_mode;
139 #endif
140 };
141
142 enum {
143 DVM_OP_MODE = 0,
144 MVM_OP_MODE = 1,
145 };
146
147 /* Protects the table contents, i.e. the ops pointer & drv list */
148 static struct mutex iwlwifi_opmode_table_mtx;
149 static struct iwlwifi_opmode_table {
150 const char *name; /* name: iwldvm, iwlmvm, etc */
151 const struct iwl_op_mode_ops *ops; /* pointer to op_mode ops */
152 struct list_head drv; /* list of devices using this op_mode */
153 } iwlwifi_opmode_table[] = { /* ops set when driver is initialized */
154 [DVM_OP_MODE] = { .name = "iwldvm", .ops = NULL },
155 [MVM_OP_MODE] = { .name = "iwlmvm", .ops = NULL },
156 };
157
158 /*
159 * struct fw_sec: Just for the image parsing proccess.
160 * For the fw storage we are using struct fw_desc.
161 */
162 struct fw_sec {
163 const void *data; /* the sec data */
164 size_t size; /* section size */
165 u32 offset; /* offset of writing in the device */
166 };
167
168 static void iwl_free_fw_desc(struct iwl_drv *drv, struct fw_desc *desc)
169 {
170 vfree(desc->data);
171 desc->data = NULL;
172 desc->len = 0;
173 }
174
175 static void iwl_free_fw_img(struct iwl_drv *drv, struct fw_img *img)
176 {
177 int i;
178 for (i = 0; i < IWL_UCODE_SECTION_MAX; i++)
179 iwl_free_fw_desc(drv, &img->sec[i]);
180 }
181
182 static void iwl_dealloc_ucode(struct iwl_drv *drv)
183 {
184 int i;
185 for (i = 0; i < IWL_UCODE_TYPE_MAX; i++)
186 iwl_free_fw_img(drv, drv->fw.img + i);
187 }
188
189 static int iwl_alloc_fw_desc(struct iwl_drv *drv, struct fw_desc *desc,
190 struct fw_sec *sec)
191 {
192 void *data;
193
194 desc->data = NULL;
195
196 if (!sec || !sec->size)
197 return -EINVAL;
198
199 data = vmalloc(sec->size);
200 if (!data)
201 return -ENOMEM;
202
203 desc->len = sec->size;
204 desc->offset = sec->offset;
205 memcpy(data, sec->data, desc->len);
206 desc->data = data;
207
208 return 0;
209 }
210
211 static void iwl_req_fw_callback(const struct firmware *ucode_raw,
212 void *context);
213
214 #define UCODE_EXPERIMENTAL_INDEX 100
215 #define UCODE_EXPERIMENTAL_TAG "exp"
216
217 static int iwl_request_firmware(struct iwl_drv *drv, bool first)
218 {
219 const char *name_pre = drv->cfg->fw_name_pre;
220 char tag[8];
221
222 if (first) {
223 #ifdef CONFIG_IWLWIFI_DEBUG_EXPERIMENTAL_UCODE
224 drv->fw_index = UCODE_EXPERIMENTAL_INDEX;
225 strcpy(tag, UCODE_EXPERIMENTAL_TAG);
226 } else if (drv->fw_index == UCODE_EXPERIMENTAL_INDEX) {
227 #endif
228 drv->fw_index = drv->cfg->ucode_api_max;
229 sprintf(tag, "%d", drv->fw_index);
230 } else {
231 drv->fw_index--;
232 sprintf(tag, "%d", drv->fw_index);
233 }
234
235 if (drv->fw_index < drv->cfg->ucode_api_min) {
236 IWL_ERR(drv, "no suitable firmware found!\n");
237 return -ENOENT;
238 }
239
240 sprintf(drv->firmware_name, "%s%s%s", name_pre, tag, ".ucode");
241
242 IWL_DEBUG_INFO(drv, "attempting to load firmware %s'%s'\n",
243 (drv->fw_index == UCODE_EXPERIMENTAL_INDEX)
244 ? "EXPERIMENTAL " : "",
245 drv->firmware_name);
246
247 return request_firmware_nowait(THIS_MODULE, 1, drv->firmware_name,
248 drv->trans->dev,
249 GFP_KERNEL, drv, iwl_req_fw_callback);
250 }
251
252 struct fw_img_parsing {
253 struct fw_sec sec[IWL_UCODE_SECTION_MAX];
254 int sec_counter;
255 };
256
257 /*
258 * struct fw_sec_parsing: to extract fw section and it's offset from tlv
259 */
260 struct fw_sec_parsing {
261 __le32 offset;
262 const u8 data[];
263 } __packed;
264
265 /**
266 * struct iwl_tlv_calib_data - parse the default calib data from TLV
267 *
268 * @ucode_type: the uCode to which the following default calib relates.
269 * @calib: default calibrations.
270 */
271 struct iwl_tlv_calib_data {
272 __le32 ucode_type;
273 struct iwl_tlv_calib_ctrl calib;
274 } __packed;
275
276 struct iwl_firmware_pieces {
277 struct fw_img_parsing img[IWL_UCODE_TYPE_MAX];
278
279 u32 init_evtlog_ptr, init_evtlog_size, init_errlog_ptr;
280 u32 inst_evtlog_ptr, inst_evtlog_size, inst_errlog_ptr;
281 };
282
283 /*
284 * These functions are just to extract uCode section data from the pieces
285 * structure.
286 */
287 static struct fw_sec *get_sec(struct iwl_firmware_pieces *pieces,
288 enum iwl_ucode_type type,
289 int sec)
290 {
291 return &pieces->img[type].sec[sec];
292 }
293
294 static void set_sec_data(struct iwl_firmware_pieces *pieces,
295 enum iwl_ucode_type type,
296 int sec,
297 const void *data)
298 {
299 pieces->img[type].sec[sec].data = data;
300 }
301
302 static void set_sec_size(struct iwl_firmware_pieces *pieces,
303 enum iwl_ucode_type type,
304 int sec,
305 size_t size)
306 {
307 pieces->img[type].sec[sec].size = size;
308 }
309
310 static size_t get_sec_size(struct iwl_firmware_pieces *pieces,
311 enum iwl_ucode_type type,
312 int sec)
313 {
314 return pieces->img[type].sec[sec].size;
315 }
316
317 static void set_sec_offset(struct iwl_firmware_pieces *pieces,
318 enum iwl_ucode_type type,
319 int sec,
320 u32 offset)
321 {
322 pieces->img[type].sec[sec].offset = offset;
323 }
324
325 static int iwl_store_cscheme(struct iwl_fw *fw, const u8 *data, const u32 len)
326 {
327 int i, j;
328 struct iwl_fw_cscheme_list *l = (struct iwl_fw_cscheme_list *)data;
329 struct iwl_fw_cipher_scheme *fwcs;
330 struct ieee80211_cipher_scheme *cs;
331 u32 cipher;
332
333 if (len < sizeof(*l) ||
334 len < sizeof(l->size) + l->size * sizeof(l->cs[0]))
335 return -EINVAL;
336
337 for (i = 0, j = 0; i < IWL_UCODE_MAX_CS && i < l->size; i++) {
338 fwcs = &l->cs[j];
339 cipher = le32_to_cpu(fwcs->cipher);
340
341 /* we skip schemes with zero cipher suite selector */
342 if (!cipher)
343 continue;
344
345 cs = &fw->cs[j++];
346 cs->cipher = cipher;
347 cs->iftype = BIT(NL80211_IFTYPE_STATION);
348 cs->hdr_len = fwcs->hdr_len;
349 cs->pn_len = fwcs->pn_len;
350 cs->pn_off = fwcs->pn_off;
351 cs->key_idx_off = fwcs->key_idx_off;
352 cs->key_idx_mask = fwcs->key_idx_mask;
353 cs->key_idx_shift = fwcs->key_idx_shift;
354 cs->mic_len = fwcs->mic_len;
355 }
356
357 return 0;
358 }
359
360 /*
361 * Gets uCode section from tlv.
362 */
363 static int iwl_store_ucode_sec(struct iwl_firmware_pieces *pieces,
364 const void *data, enum iwl_ucode_type type,
365 int size)
366 {
367 struct fw_img_parsing *img;
368 struct fw_sec *sec;
369 struct fw_sec_parsing *sec_parse;
370
371 if (WARN_ON(!pieces || !data || type >= IWL_UCODE_TYPE_MAX))
372 return -1;
373
374 sec_parse = (struct fw_sec_parsing *)data;
375
376 img = &pieces->img[type];
377 sec = &img->sec[img->sec_counter];
378
379 sec->offset = le32_to_cpu(sec_parse->offset);
380 sec->data = sec_parse->data;
381 sec->size = size - sizeof(sec_parse->offset);
382
383 ++img->sec_counter;
384
385 return 0;
386 }
387
388 static int iwl_set_default_calib(struct iwl_drv *drv, const u8 *data)
389 {
390 struct iwl_tlv_calib_data *def_calib =
391 (struct iwl_tlv_calib_data *)data;
392 u32 ucode_type = le32_to_cpu(def_calib->ucode_type);
393 if (ucode_type >= IWL_UCODE_TYPE_MAX) {
394 IWL_ERR(drv, "Wrong ucode_type %u for default calibration.\n",
395 ucode_type);
396 return -EINVAL;
397 }
398 drv->fw.default_calib[ucode_type].flow_trigger =
399 def_calib->calib.flow_trigger;
400 drv->fw.default_calib[ucode_type].event_trigger =
401 def_calib->calib.event_trigger;
402
403 return 0;
404 }
405
406 static int iwl_parse_v1_v2_firmware(struct iwl_drv *drv,
407 const struct firmware *ucode_raw,
408 struct iwl_firmware_pieces *pieces)
409 {
410 struct iwl_ucode_header *ucode = (void *)ucode_raw->data;
411 u32 api_ver, hdr_size, build;
412 char buildstr[25];
413 const u8 *src;
414
415 drv->fw.ucode_ver = le32_to_cpu(ucode->ver);
416 api_ver = IWL_UCODE_API(drv->fw.ucode_ver);
417
418 switch (api_ver) {
419 default:
420 hdr_size = 28;
421 if (ucode_raw->size < hdr_size) {
422 IWL_ERR(drv, "File size too small!\n");
423 return -EINVAL;
424 }
425 build = le32_to_cpu(ucode->u.v2.build);
426 set_sec_size(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_INST,
427 le32_to_cpu(ucode->u.v2.inst_size));
428 set_sec_size(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_DATA,
429 le32_to_cpu(ucode->u.v2.data_size));
430 set_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_INST,
431 le32_to_cpu(ucode->u.v2.init_size));
432 set_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_DATA,
433 le32_to_cpu(ucode->u.v2.init_data_size));
434 src = ucode->u.v2.data;
435 break;
436 case 0:
437 case 1:
438 case 2:
439 hdr_size = 24;
440 if (ucode_raw->size < hdr_size) {
441 IWL_ERR(drv, "File size too small!\n");
442 return -EINVAL;
443 }
444 build = 0;
445 set_sec_size(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_INST,
446 le32_to_cpu(ucode->u.v1.inst_size));
447 set_sec_size(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_DATA,
448 le32_to_cpu(ucode->u.v1.data_size));
449 set_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_INST,
450 le32_to_cpu(ucode->u.v1.init_size));
451 set_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_DATA,
452 le32_to_cpu(ucode->u.v1.init_data_size));
453 src = ucode->u.v1.data;
454 break;
455 }
456
457 if (build)
458 sprintf(buildstr, " build %u%s", build,
459 (drv->fw_index == UCODE_EXPERIMENTAL_INDEX)
460 ? " (EXP)" : "");
461 else
462 buildstr[0] = '\0';
463
464 snprintf(drv->fw.fw_version,
465 sizeof(drv->fw.fw_version),
466 "%u.%u.%u.%u%s",
467 IWL_UCODE_MAJOR(drv->fw.ucode_ver),
468 IWL_UCODE_MINOR(drv->fw.ucode_ver),
469 IWL_UCODE_API(drv->fw.ucode_ver),
470 IWL_UCODE_SERIAL(drv->fw.ucode_ver),
471 buildstr);
472
473 /* Verify size of file vs. image size info in file's header */
474
475 if (ucode_raw->size != hdr_size +
476 get_sec_size(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_INST) +
477 get_sec_size(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_DATA) +
478 get_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_INST) +
479 get_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_DATA)) {
480
481 IWL_ERR(drv,
482 "uCode file size %d does not match expected size\n",
483 (int)ucode_raw->size);
484 return -EINVAL;
485 }
486
487
488 set_sec_data(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_INST, src);
489 src += get_sec_size(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_INST);
490 set_sec_offset(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_INST,
491 IWLAGN_RTC_INST_LOWER_BOUND);
492 set_sec_data(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_DATA, src);
493 src += get_sec_size(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_DATA);
494 set_sec_offset(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_DATA,
495 IWLAGN_RTC_DATA_LOWER_BOUND);
496 set_sec_data(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_INST, src);
497 src += get_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_INST);
498 set_sec_offset(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_INST,
499 IWLAGN_RTC_INST_LOWER_BOUND);
500 set_sec_data(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_DATA, src);
501 src += get_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_DATA);
502 set_sec_offset(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_DATA,
503 IWLAGN_RTC_DATA_LOWER_BOUND);
504 return 0;
505 }
506
507 static int iwl_parse_tlv_firmware(struct iwl_drv *drv,
508 const struct firmware *ucode_raw,
509 struct iwl_firmware_pieces *pieces,
510 struct iwl_ucode_capabilities *capa)
511 {
512 struct iwl_tlv_ucode_header *ucode = (void *)ucode_raw->data;
513 struct iwl_ucode_tlv *tlv;
514 size_t len = ucode_raw->size;
515 const u8 *data;
516 u32 tlv_len;
517 enum iwl_ucode_tlv_type tlv_type;
518 const u8 *tlv_data;
519 char buildstr[25];
520 u32 build;
521 int num_of_cpus;
522
523 if (len < sizeof(*ucode)) {
524 IWL_ERR(drv, "uCode has invalid length: %zd\n", len);
525 return -EINVAL;
526 }
527
528 if (ucode->magic != cpu_to_le32(IWL_TLV_UCODE_MAGIC)) {
529 IWL_ERR(drv, "invalid uCode magic: 0X%x\n",
530 le32_to_cpu(ucode->magic));
531 return -EINVAL;
532 }
533
534 drv->fw.ucode_ver = le32_to_cpu(ucode->ver);
535 build = le32_to_cpu(ucode->build);
536
537 if (build)
538 sprintf(buildstr, " build %u%s", build,
539 (drv->fw_index == UCODE_EXPERIMENTAL_INDEX)
540 ? " (EXP)" : "");
541 else
542 buildstr[0] = '\0';
543
544 snprintf(drv->fw.fw_version,
545 sizeof(drv->fw.fw_version),
546 "%u.%u.%u.%u%s",
547 IWL_UCODE_MAJOR(drv->fw.ucode_ver),
548 IWL_UCODE_MINOR(drv->fw.ucode_ver),
549 IWL_UCODE_API(drv->fw.ucode_ver),
550 IWL_UCODE_SERIAL(drv->fw.ucode_ver),
551 buildstr);
552
553 data = ucode->data;
554
555 len -= sizeof(*ucode);
556
557 while (len >= sizeof(*tlv)) {
558 len -= sizeof(*tlv);
559 tlv = (void *)data;
560
561 tlv_len = le32_to_cpu(tlv->length);
562 tlv_type = le32_to_cpu(tlv->type);
563 tlv_data = tlv->data;
564
565 if (len < tlv_len) {
566 IWL_ERR(drv, "invalid TLV len: %zd/%u\n",
567 len, tlv_len);
568 return -EINVAL;
569 }
570 len -= ALIGN(tlv_len, 4);
571 data += sizeof(*tlv) + ALIGN(tlv_len, 4);
572
573 switch (tlv_type) {
574 case IWL_UCODE_TLV_INST:
575 set_sec_data(pieces, IWL_UCODE_REGULAR,
576 IWL_UCODE_SECTION_INST, tlv_data);
577 set_sec_size(pieces, IWL_UCODE_REGULAR,
578 IWL_UCODE_SECTION_INST, tlv_len);
579 set_sec_offset(pieces, IWL_UCODE_REGULAR,
580 IWL_UCODE_SECTION_INST,
581 IWLAGN_RTC_INST_LOWER_BOUND);
582 break;
583 case IWL_UCODE_TLV_DATA:
584 set_sec_data(pieces, IWL_UCODE_REGULAR,
585 IWL_UCODE_SECTION_DATA, tlv_data);
586 set_sec_size(pieces, IWL_UCODE_REGULAR,
587 IWL_UCODE_SECTION_DATA, tlv_len);
588 set_sec_offset(pieces, IWL_UCODE_REGULAR,
589 IWL_UCODE_SECTION_DATA,
590 IWLAGN_RTC_DATA_LOWER_BOUND);
591 break;
592 case IWL_UCODE_TLV_INIT:
593 set_sec_data(pieces, IWL_UCODE_INIT,
594 IWL_UCODE_SECTION_INST, tlv_data);
595 set_sec_size(pieces, IWL_UCODE_INIT,
596 IWL_UCODE_SECTION_INST, tlv_len);
597 set_sec_offset(pieces, IWL_UCODE_INIT,
598 IWL_UCODE_SECTION_INST,
599 IWLAGN_RTC_INST_LOWER_BOUND);
600 break;
601 case IWL_UCODE_TLV_INIT_DATA:
602 set_sec_data(pieces, IWL_UCODE_INIT,
603 IWL_UCODE_SECTION_DATA, tlv_data);
604 set_sec_size(pieces, IWL_UCODE_INIT,
605 IWL_UCODE_SECTION_DATA, tlv_len);
606 set_sec_offset(pieces, IWL_UCODE_INIT,
607 IWL_UCODE_SECTION_DATA,
608 IWLAGN_RTC_DATA_LOWER_BOUND);
609 break;
610 case IWL_UCODE_TLV_BOOT:
611 IWL_ERR(drv, "Found unexpected BOOT ucode\n");
612 break;
613 case IWL_UCODE_TLV_PROBE_MAX_LEN:
614 if (tlv_len != sizeof(u32))
615 goto invalid_tlv_len;
616 capa->max_probe_length =
617 le32_to_cpup((__le32 *)tlv_data);
618 break;
619 case IWL_UCODE_TLV_PAN:
620 if (tlv_len)
621 goto invalid_tlv_len;
622 capa->flags |= IWL_UCODE_TLV_FLAGS_PAN;
623 break;
624 case IWL_UCODE_TLV_FLAGS:
625 /* must be at least one u32 */
626 if (tlv_len < sizeof(u32))
627 goto invalid_tlv_len;
628 /* and a proper number of u32s */
629 if (tlv_len % sizeof(u32))
630 goto invalid_tlv_len;
631 /*
632 * This driver only reads the first u32 as
633 * right now no more features are defined,
634 * if that changes then either the driver
635 * will not work with the new firmware, or
636 * it'll not take advantage of new features.
637 */
638 capa->flags = le32_to_cpup((__le32 *)tlv_data);
639 break;
640 case IWL_UCODE_TLV_INIT_EVTLOG_PTR:
641 if (tlv_len != sizeof(u32))
642 goto invalid_tlv_len;
643 pieces->init_evtlog_ptr =
644 le32_to_cpup((__le32 *)tlv_data);
645 break;
646 case IWL_UCODE_TLV_INIT_EVTLOG_SIZE:
647 if (tlv_len != sizeof(u32))
648 goto invalid_tlv_len;
649 pieces->init_evtlog_size =
650 le32_to_cpup((__le32 *)tlv_data);
651 break;
652 case IWL_UCODE_TLV_INIT_ERRLOG_PTR:
653 if (tlv_len != sizeof(u32))
654 goto invalid_tlv_len;
655 pieces->init_errlog_ptr =
656 le32_to_cpup((__le32 *)tlv_data);
657 break;
658 case IWL_UCODE_TLV_RUNT_EVTLOG_PTR:
659 if (tlv_len != sizeof(u32))
660 goto invalid_tlv_len;
661 pieces->inst_evtlog_ptr =
662 le32_to_cpup((__le32 *)tlv_data);
663 break;
664 case IWL_UCODE_TLV_RUNT_EVTLOG_SIZE:
665 if (tlv_len != sizeof(u32))
666 goto invalid_tlv_len;
667 pieces->inst_evtlog_size =
668 le32_to_cpup((__le32 *)tlv_data);
669 break;
670 case IWL_UCODE_TLV_RUNT_ERRLOG_PTR:
671 if (tlv_len != sizeof(u32))
672 goto invalid_tlv_len;
673 pieces->inst_errlog_ptr =
674 le32_to_cpup((__le32 *)tlv_data);
675 break;
676 case IWL_UCODE_TLV_ENHANCE_SENS_TBL:
677 if (tlv_len)
678 goto invalid_tlv_len;
679 drv->fw.enhance_sensitivity_table = true;
680 break;
681 case IWL_UCODE_TLV_WOWLAN_INST:
682 set_sec_data(pieces, IWL_UCODE_WOWLAN,
683 IWL_UCODE_SECTION_INST, tlv_data);
684 set_sec_size(pieces, IWL_UCODE_WOWLAN,
685 IWL_UCODE_SECTION_INST, tlv_len);
686 set_sec_offset(pieces, IWL_UCODE_WOWLAN,
687 IWL_UCODE_SECTION_INST,
688 IWLAGN_RTC_INST_LOWER_BOUND);
689 break;
690 case IWL_UCODE_TLV_WOWLAN_DATA:
691 set_sec_data(pieces, IWL_UCODE_WOWLAN,
692 IWL_UCODE_SECTION_DATA, tlv_data);
693 set_sec_size(pieces, IWL_UCODE_WOWLAN,
694 IWL_UCODE_SECTION_DATA, tlv_len);
695 set_sec_offset(pieces, IWL_UCODE_WOWLAN,
696 IWL_UCODE_SECTION_DATA,
697 IWLAGN_RTC_DATA_LOWER_BOUND);
698 break;
699 case IWL_UCODE_TLV_PHY_CALIBRATION_SIZE:
700 if (tlv_len != sizeof(u32))
701 goto invalid_tlv_len;
702 capa->standard_phy_calibration_size =
703 le32_to_cpup((__le32 *)tlv_data);
704 break;
705 case IWL_UCODE_TLV_SEC_RT:
706 iwl_store_ucode_sec(pieces, tlv_data, IWL_UCODE_REGULAR,
707 tlv_len);
708 drv->fw.mvm_fw = true;
709 break;
710 case IWL_UCODE_TLV_SEC_INIT:
711 iwl_store_ucode_sec(pieces, tlv_data, IWL_UCODE_INIT,
712 tlv_len);
713 drv->fw.mvm_fw = true;
714 break;
715 case IWL_UCODE_TLV_SEC_WOWLAN:
716 iwl_store_ucode_sec(pieces, tlv_data, IWL_UCODE_WOWLAN,
717 tlv_len);
718 drv->fw.mvm_fw = true;
719 break;
720 case IWL_UCODE_TLV_DEF_CALIB:
721 if (tlv_len != sizeof(struct iwl_tlv_calib_data))
722 goto invalid_tlv_len;
723 if (iwl_set_default_calib(drv, tlv_data))
724 goto tlv_error;
725 break;
726 case IWL_UCODE_TLV_PHY_SKU:
727 if (tlv_len != sizeof(u32))
728 goto invalid_tlv_len;
729 drv->fw.phy_config = le32_to_cpup((__le32 *)tlv_data);
730 break;
731 case IWL_UCODE_TLV_SECURE_SEC_RT:
732 iwl_store_ucode_sec(pieces, tlv_data, IWL_UCODE_REGULAR,
733 tlv_len);
734 drv->fw.mvm_fw = true;
735 drv->fw.img[IWL_UCODE_REGULAR].is_secure = true;
736 break;
737 case IWL_UCODE_TLV_SECURE_SEC_INIT:
738 iwl_store_ucode_sec(pieces, tlv_data, IWL_UCODE_INIT,
739 tlv_len);
740 drv->fw.mvm_fw = true;
741 drv->fw.img[IWL_UCODE_INIT].is_secure = true;
742 break;
743 case IWL_UCODE_TLV_SECURE_SEC_WOWLAN:
744 iwl_store_ucode_sec(pieces, tlv_data, IWL_UCODE_WOWLAN,
745 tlv_len);
746 drv->fw.mvm_fw = true;
747 drv->fw.img[IWL_UCODE_WOWLAN].is_secure = true;
748 break;
749 case IWL_UCODE_TLV_NUM_OF_CPU:
750 if (tlv_len != sizeof(u32))
751 goto invalid_tlv_len;
752 num_of_cpus =
753 le32_to_cpup((__le32 *)tlv_data);
754
755 if (num_of_cpus == 2) {
756 drv->fw.img[IWL_UCODE_REGULAR].is_dual_cpus =
757 true;
758 drv->fw.img[IWL_UCODE_INIT].is_dual_cpus =
759 true;
760 drv->fw.img[IWL_UCODE_WOWLAN].is_dual_cpus =
761 true;
762 } else if ((num_of_cpus > 2) || (num_of_cpus < 1)) {
763 IWL_ERR(drv, "Driver support upto 2 CPUs\n");
764 return -EINVAL;
765 }
766 break;
767 case IWL_UCODE_TLV_CSCHEME:
768 if (iwl_store_cscheme(&drv->fw, tlv_data, tlv_len))
769 goto invalid_tlv_len;
770 break;
771 default:
772 IWL_DEBUG_INFO(drv, "unknown TLV: %d\n", tlv_type);
773 break;
774 }
775 }
776
777 if (len) {
778 IWL_ERR(drv, "invalid TLV after parsing: %zd\n", len);
779 iwl_print_hex_dump(drv, IWL_DL_FW, (u8 *)data, len);
780 return -EINVAL;
781 }
782
783 return 0;
784
785 invalid_tlv_len:
786 IWL_ERR(drv, "TLV %d has invalid size: %u\n", tlv_type, tlv_len);
787 tlv_error:
788 iwl_print_hex_dump(drv, IWL_DL_FW, tlv_data, tlv_len);
789
790 return -EINVAL;
791 }
792
793 static int iwl_alloc_ucode(struct iwl_drv *drv,
794 struct iwl_firmware_pieces *pieces,
795 enum iwl_ucode_type type)
796 {
797 int i;
798 for (i = 0;
799 i < IWL_UCODE_SECTION_MAX && get_sec_size(pieces, type, i);
800 i++)
801 if (iwl_alloc_fw_desc(drv, &(drv->fw.img[type].sec[i]),
802 get_sec(pieces, type, i)))
803 return -ENOMEM;
804 return 0;
805 }
806
807 static int validate_sec_sizes(struct iwl_drv *drv,
808 struct iwl_firmware_pieces *pieces,
809 const struct iwl_cfg *cfg)
810 {
811 IWL_DEBUG_INFO(drv, "f/w package hdr runtime inst size = %Zd\n",
812 get_sec_size(pieces, IWL_UCODE_REGULAR,
813 IWL_UCODE_SECTION_INST));
814 IWL_DEBUG_INFO(drv, "f/w package hdr runtime data size = %Zd\n",
815 get_sec_size(pieces, IWL_UCODE_REGULAR,
816 IWL_UCODE_SECTION_DATA));
817 IWL_DEBUG_INFO(drv, "f/w package hdr init inst size = %Zd\n",
818 get_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_INST));
819 IWL_DEBUG_INFO(drv, "f/w package hdr init data size = %Zd\n",
820 get_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_DATA));
821
822 /* Verify that uCode images will fit in card's SRAM. */
823 if (get_sec_size(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_INST) >
824 cfg->max_inst_size) {
825 IWL_ERR(drv, "uCode instr len %Zd too large to fit in\n",
826 get_sec_size(pieces, IWL_UCODE_REGULAR,
827 IWL_UCODE_SECTION_INST));
828 return -1;
829 }
830
831 if (get_sec_size(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_DATA) >
832 cfg->max_data_size) {
833 IWL_ERR(drv, "uCode data len %Zd too large to fit in\n",
834 get_sec_size(pieces, IWL_UCODE_REGULAR,
835 IWL_UCODE_SECTION_DATA));
836 return -1;
837 }
838
839 if (get_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_INST) >
840 cfg->max_inst_size) {
841 IWL_ERR(drv, "uCode init instr len %Zd too large to fit in\n",
842 get_sec_size(pieces, IWL_UCODE_INIT,
843 IWL_UCODE_SECTION_INST));
844 return -1;
845 }
846
847 if (get_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_DATA) >
848 cfg->max_data_size) {
849 IWL_ERR(drv, "uCode init data len %Zd too large to fit in\n",
850 get_sec_size(pieces, IWL_UCODE_REGULAR,
851 IWL_UCODE_SECTION_DATA));
852 return -1;
853 }
854 return 0;
855 }
856
857 static struct iwl_op_mode *
858 _iwl_op_mode_start(struct iwl_drv *drv, struct iwlwifi_opmode_table *op)
859 {
860 const struct iwl_op_mode_ops *ops = op->ops;
861 struct dentry *dbgfs_dir = NULL;
862 struct iwl_op_mode *op_mode = NULL;
863
864 #ifdef CONFIG_IWLWIFI_DEBUGFS
865 drv->dbgfs_op_mode = debugfs_create_dir(op->name,
866 drv->dbgfs_drv);
867 if (!drv->dbgfs_op_mode) {
868 IWL_ERR(drv,
869 "failed to create opmode debugfs directory\n");
870 return op_mode;
871 }
872 dbgfs_dir = drv->dbgfs_op_mode;
873 #endif
874
875 op_mode = ops->start(drv->trans, drv->cfg, &drv->fw, dbgfs_dir);
876
877 #ifdef CONFIG_IWLWIFI_DEBUGFS
878 if (!op_mode) {
879 debugfs_remove_recursive(drv->dbgfs_op_mode);
880 drv->dbgfs_op_mode = NULL;
881 }
882 #endif
883
884 return op_mode;
885 }
886
887 static void _iwl_op_mode_stop(struct iwl_drv *drv)
888 {
889 /* op_mode can be NULL if its start failed */
890 if (drv->op_mode) {
891 iwl_op_mode_stop(drv->op_mode);
892 drv->op_mode = NULL;
893
894 #ifdef CONFIG_IWLWIFI_DEBUGFS
895 debugfs_remove_recursive(drv->dbgfs_op_mode);
896 drv->dbgfs_op_mode = NULL;
897 #endif
898 }
899 }
900
901 /**
902 * iwl_req_fw_callback - callback when firmware was loaded
903 *
904 * If loaded successfully, copies the firmware into buffers
905 * for the card to fetch (via DMA).
906 */
907 static void iwl_req_fw_callback(const struct firmware *ucode_raw, void *context)
908 {
909 struct iwl_drv *drv = context;
910 struct iwl_fw *fw = &drv->fw;
911 struct iwl_ucode_header *ucode;
912 struct iwlwifi_opmode_table *op;
913 int err;
914 struct iwl_firmware_pieces pieces;
915 const unsigned int api_max = drv->cfg->ucode_api_max;
916 unsigned int api_ok = drv->cfg->ucode_api_ok;
917 const unsigned int api_min = drv->cfg->ucode_api_min;
918 u32 api_ver;
919 int i;
920 bool load_module = false;
921
922 fw->ucode_capa.max_probe_length = IWL_DEFAULT_MAX_PROBE_LENGTH;
923 fw->ucode_capa.standard_phy_calibration_size =
924 IWL_DEFAULT_STANDARD_PHY_CALIBRATE_TBL_SIZE;
925
926 if (!api_ok)
927 api_ok = api_max;
928
929 memset(&pieces, 0, sizeof(pieces));
930
931 if (!ucode_raw) {
932 if (drv->fw_index <= api_ok)
933 IWL_ERR(drv,
934 "request for firmware file '%s' failed.\n",
935 drv->firmware_name);
936 goto try_again;
937 }
938
939 IWL_DEBUG_INFO(drv, "Loaded firmware file '%s' (%zd bytes).\n",
940 drv->firmware_name, ucode_raw->size);
941
942 /* Make sure that we got at least the API version number */
943 if (ucode_raw->size < 4) {
944 IWL_ERR(drv, "File size way too small!\n");
945 goto try_again;
946 }
947
948 /* Data from ucode file: header followed by uCode images */
949 ucode = (struct iwl_ucode_header *)ucode_raw->data;
950
951 if (ucode->ver)
952 err = iwl_parse_v1_v2_firmware(drv, ucode_raw, &pieces);
953 else
954 err = iwl_parse_tlv_firmware(drv, ucode_raw, &pieces,
955 &fw->ucode_capa);
956
957 if (err)
958 goto try_again;
959
960 api_ver = IWL_UCODE_API(drv->fw.ucode_ver);
961
962 /*
963 * api_ver should match the api version forming part of the
964 * firmware filename ... but we don't check for that and only rely
965 * on the API version read from firmware header from here on forward
966 */
967 /* no api version check required for experimental uCode */
968 if (drv->fw_index != UCODE_EXPERIMENTAL_INDEX) {
969 if (api_ver < api_min || api_ver > api_max) {
970 IWL_ERR(drv,
971 "Driver unable to support your firmware API. "
972 "Driver supports v%u, firmware is v%u.\n",
973 api_max, api_ver);
974 goto try_again;
975 }
976
977 if (api_ver < api_ok) {
978 if (api_ok != api_max)
979 IWL_ERR(drv, "Firmware has old API version, "
980 "expected v%u through v%u, got v%u.\n",
981 api_ok, api_max, api_ver);
982 else
983 IWL_ERR(drv, "Firmware has old API version, "
984 "expected v%u, got v%u.\n",
985 api_max, api_ver);
986 IWL_ERR(drv, "New firmware can be obtained from "
987 "http://www.intellinuxwireless.org/.\n");
988 }
989 }
990
991 /*
992 * In mvm uCode there is no difference between data and instructions
993 * sections.
994 */
995 if (!fw->mvm_fw && validate_sec_sizes(drv, &pieces, drv->cfg))
996 goto try_again;
997
998 /* Allocate ucode buffers for card's bus-master loading ... */
999
1000 /* Runtime instructions and 2 copies of data:
1001 * 1) unmodified from disk
1002 * 2) backup cache for save/restore during power-downs */
1003 for (i = 0; i < IWL_UCODE_TYPE_MAX; i++)
1004 if (iwl_alloc_ucode(drv, &pieces, i))
1005 goto out_free_fw;
1006
1007 /* Now that we can no longer fail, copy information */
1008
1009 /*
1010 * The (size - 16) / 12 formula is based on the information recorded
1011 * for each event, which is of mode 1 (including timestamp) for all
1012 * new microcodes that include this information.
1013 */
1014 fw->init_evtlog_ptr = pieces.init_evtlog_ptr;
1015 if (pieces.init_evtlog_size)
1016 fw->init_evtlog_size = (pieces.init_evtlog_size - 16)/12;
1017 else
1018 fw->init_evtlog_size =
1019 drv->cfg->base_params->max_event_log_size;
1020 fw->init_errlog_ptr = pieces.init_errlog_ptr;
1021 fw->inst_evtlog_ptr = pieces.inst_evtlog_ptr;
1022 if (pieces.inst_evtlog_size)
1023 fw->inst_evtlog_size = (pieces.inst_evtlog_size - 16)/12;
1024 else
1025 fw->inst_evtlog_size =
1026 drv->cfg->base_params->max_event_log_size;
1027 fw->inst_errlog_ptr = pieces.inst_errlog_ptr;
1028
1029 /*
1030 * figure out the offset of chain noise reset and gain commands
1031 * base on the size of standard phy calibration commands table size
1032 */
1033 if (fw->ucode_capa.standard_phy_calibration_size >
1034 IWL_MAX_PHY_CALIBRATE_TBL_SIZE)
1035 fw->ucode_capa.standard_phy_calibration_size =
1036 IWL_MAX_STANDARD_PHY_CALIBRATE_TBL_SIZE;
1037
1038 /* We have our copies now, allow OS release its copies */
1039 release_firmware(ucode_raw);
1040
1041 mutex_lock(&iwlwifi_opmode_table_mtx);
1042 if (fw->mvm_fw)
1043 op = &iwlwifi_opmode_table[MVM_OP_MODE];
1044 else
1045 op = &iwlwifi_opmode_table[DVM_OP_MODE];
1046
1047 IWL_INFO(drv, "loaded firmware version %s op_mode %s\n",
1048 drv->fw.fw_version, op->name);
1049
1050 /* add this device to the list of devices using this op_mode */
1051 list_add_tail(&drv->list, &op->drv);
1052
1053 if (op->ops) {
1054 drv->op_mode = _iwl_op_mode_start(drv, op);
1055
1056 if (!drv->op_mode) {
1057 mutex_unlock(&iwlwifi_opmode_table_mtx);
1058 goto out_unbind;
1059 }
1060 } else {
1061 load_module = true;
1062 }
1063 mutex_unlock(&iwlwifi_opmode_table_mtx);
1064
1065 /*
1066 * Complete the firmware request last so that
1067 * a driver unbind (stop) doesn't run while we
1068 * are doing the start() above.
1069 */
1070 complete(&drv->request_firmware_complete);
1071
1072 /*
1073 * Load the module last so we don't block anything
1074 * else from proceeding if the module fails to load
1075 * or hangs loading.
1076 */
1077 if (load_module) {
1078 err = request_module("%s", op->name);
1079 #ifdef CONFIG_IWLWIFI_OPMODE_MODULAR
1080 if (err)
1081 IWL_ERR(drv,
1082 "failed to load module %s (error %d), is dynamic loading enabled?\n",
1083 op->name, err);
1084 #endif
1085 }
1086 return;
1087
1088 try_again:
1089 /* try next, if any */
1090 release_firmware(ucode_raw);
1091 if (iwl_request_firmware(drv, false))
1092 goto out_unbind;
1093 return;
1094
1095 out_free_fw:
1096 IWL_ERR(drv, "failed to allocate pci memory\n");
1097 iwl_dealloc_ucode(drv);
1098 release_firmware(ucode_raw);
1099 out_unbind:
1100 complete(&drv->request_firmware_complete);
1101 device_release_driver(drv->trans->dev);
1102 }
1103
1104 struct iwl_drv *iwl_drv_start(struct iwl_trans *trans,
1105 const struct iwl_cfg *cfg)
1106 {
1107 struct iwl_drv *drv;
1108 int ret;
1109
1110 drv = kzalloc(sizeof(*drv), GFP_KERNEL);
1111 if (!drv) {
1112 ret = -ENOMEM;
1113 goto err;
1114 }
1115
1116 drv->trans = trans;
1117 drv->dev = trans->dev;
1118 drv->cfg = cfg;
1119
1120 init_completion(&drv->request_firmware_complete);
1121 INIT_LIST_HEAD(&drv->list);
1122
1123 #ifdef CONFIG_IWLWIFI_DEBUGFS
1124 /* Create the device debugfs entries. */
1125 drv->dbgfs_drv = debugfs_create_dir(dev_name(trans->dev),
1126 iwl_dbgfs_root);
1127
1128 if (!drv->dbgfs_drv) {
1129 IWL_ERR(drv, "failed to create debugfs directory\n");
1130 ret = -ENOMEM;
1131 goto err_free_drv;
1132 }
1133
1134 /* Create transport layer debugfs dir */
1135 drv->trans->dbgfs_dir = debugfs_create_dir("trans", drv->dbgfs_drv);
1136
1137 if (!drv->trans->dbgfs_dir) {
1138 IWL_ERR(drv, "failed to create transport debugfs directory\n");
1139 ret = -ENOMEM;
1140 goto err_free_dbgfs;
1141 }
1142 #endif
1143
1144 ret = iwl_request_firmware(drv, true);
1145 if (ret) {
1146 IWL_ERR(trans, "Couldn't request the fw\n");
1147 goto err_fw;
1148 }
1149
1150 return drv;
1151
1152 err_fw:
1153 #ifdef CONFIG_IWLWIFI_DEBUGFS
1154 err_free_dbgfs:
1155 debugfs_remove_recursive(drv->dbgfs_drv);
1156 err_free_drv:
1157 #endif
1158 kfree(drv);
1159 err:
1160 return ERR_PTR(ret);
1161 }
1162
1163 void iwl_drv_stop(struct iwl_drv *drv)
1164 {
1165 wait_for_completion(&drv->request_firmware_complete);
1166
1167 _iwl_op_mode_stop(drv);
1168
1169 iwl_dealloc_ucode(drv);
1170
1171 mutex_lock(&iwlwifi_opmode_table_mtx);
1172 /*
1173 * List is empty (this item wasn't added)
1174 * when firmware loading failed -- in that
1175 * case we can't remove it from any list.
1176 */
1177 if (!list_empty(&drv->list))
1178 list_del(&drv->list);
1179 mutex_unlock(&iwlwifi_opmode_table_mtx);
1180
1181 #ifdef CONFIG_IWLWIFI_DEBUGFS
1182 debugfs_remove_recursive(drv->dbgfs_drv);
1183 #endif
1184
1185 kfree(drv);
1186 }
1187
1188
1189 /* shared module parameters */
1190 struct iwl_mod_params iwlwifi_mod_params = {
1191 .restart_fw = true,
1192 .bt_coex_active = true,
1193 .power_level = IWL_POWER_INDEX_1,
1194 .wd_disable = true,
1195 /* the rest are 0 by default */
1196 };
1197 IWL_EXPORT_SYMBOL(iwlwifi_mod_params);
1198
1199 int iwl_opmode_register(const char *name, const struct iwl_op_mode_ops *ops)
1200 {
1201 int i;
1202 struct iwl_drv *drv;
1203 struct iwlwifi_opmode_table *op;
1204
1205 mutex_lock(&iwlwifi_opmode_table_mtx);
1206 for (i = 0; i < ARRAY_SIZE(iwlwifi_opmode_table); i++) {
1207 op = &iwlwifi_opmode_table[i];
1208 if (strcmp(op->name, name))
1209 continue;
1210 op->ops = ops;
1211 /* TODO: need to handle exceptional case */
1212 list_for_each_entry(drv, &op->drv, list)
1213 drv->op_mode = _iwl_op_mode_start(drv, op);
1214
1215 mutex_unlock(&iwlwifi_opmode_table_mtx);
1216 return 0;
1217 }
1218 mutex_unlock(&iwlwifi_opmode_table_mtx);
1219 return -EIO;
1220 }
1221 IWL_EXPORT_SYMBOL(iwl_opmode_register);
1222
1223 void iwl_opmode_deregister(const char *name)
1224 {
1225 int i;
1226 struct iwl_drv *drv;
1227
1228 mutex_lock(&iwlwifi_opmode_table_mtx);
1229 for (i = 0; i < ARRAY_SIZE(iwlwifi_opmode_table); i++) {
1230 if (strcmp(iwlwifi_opmode_table[i].name, name))
1231 continue;
1232 iwlwifi_opmode_table[i].ops = NULL;
1233
1234 /* call the stop routine for all devices */
1235 list_for_each_entry(drv, &iwlwifi_opmode_table[i].drv, list)
1236 _iwl_op_mode_stop(drv);
1237
1238 mutex_unlock(&iwlwifi_opmode_table_mtx);
1239 return;
1240 }
1241 mutex_unlock(&iwlwifi_opmode_table_mtx);
1242 }
1243 IWL_EXPORT_SYMBOL(iwl_opmode_deregister);
1244
1245 static int __init iwl_drv_init(void)
1246 {
1247 int i;
1248
1249 mutex_init(&iwlwifi_opmode_table_mtx);
1250
1251 for (i = 0; i < ARRAY_SIZE(iwlwifi_opmode_table); i++)
1252 INIT_LIST_HEAD(&iwlwifi_opmode_table[i].drv);
1253
1254 pr_info(DRV_DESCRIPTION ", " DRV_VERSION "\n");
1255 pr_info(DRV_COPYRIGHT "\n");
1256
1257 #ifdef CONFIG_IWLWIFI_DEBUGFS
1258 /* Create the root of iwlwifi debugfs subsystem. */
1259 iwl_dbgfs_root = debugfs_create_dir(DRV_NAME, NULL);
1260
1261 if (!iwl_dbgfs_root)
1262 return -EFAULT;
1263 #endif
1264
1265 return iwl_pci_register_driver();
1266 }
1267 module_init(iwl_drv_init);
1268
1269 static void __exit iwl_drv_exit(void)
1270 {
1271 iwl_pci_unregister_driver();
1272
1273 #ifdef CONFIG_IWLWIFI_DEBUGFS
1274 debugfs_remove_recursive(iwl_dbgfs_root);
1275 #endif
1276 }
1277 module_exit(iwl_drv_exit);
1278
1279 #ifdef CONFIG_IWLWIFI_DEBUG
1280 module_param_named(debug, iwlwifi_mod_params.debug_level, uint,
1281 S_IRUGO | S_IWUSR);
1282 MODULE_PARM_DESC(debug, "debug output mask");
1283 #endif
1284
1285 module_param_named(swcrypto, iwlwifi_mod_params.sw_crypto, int, S_IRUGO);
1286 MODULE_PARM_DESC(swcrypto, "using crypto in software (default 0 [hardware])");
1287 module_param_named(11n_disable, iwlwifi_mod_params.disable_11n, uint, S_IRUGO);
1288 MODULE_PARM_DESC(11n_disable,
1289 "disable 11n functionality, bitmap: 1: full, 2: agg TX, 4: agg RX");
1290 module_param_named(amsdu_size_8K, iwlwifi_mod_params.amsdu_size_8K,
1291 int, S_IRUGO);
1292 MODULE_PARM_DESC(amsdu_size_8K, "enable 8K amsdu size (default 0)");
1293 module_param_named(fw_restart, iwlwifi_mod_params.restart_fw, bool, S_IRUGO);
1294 MODULE_PARM_DESC(fw_restart, "restart firmware in case of error (default true)");
1295
1296 module_param_named(antenna_coupling, iwlwifi_mod_params.ant_coupling,
1297 int, S_IRUGO);
1298 MODULE_PARM_DESC(antenna_coupling,
1299 "specify antenna coupling in dB (defualt: 0 dB)");
1300
1301 module_param_named(wd_disable, iwlwifi_mod_params.wd_disable, int, S_IRUGO);
1302 MODULE_PARM_DESC(wd_disable,
1303 "Disable stuck queue watchdog timer 0=system default, "
1304 "1=disable, 2=enable (default: 0)");
1305
1306 module_param_named(nvm_file, iwlwifi_mod_params.nvm_file, charp, S_IRUGO);
1307 MODULE_PARM_DESC(nvm_file, "NVM file name");
1308
1309 /*
1310 * set bt_coex_active to true, uCode will do kill/defer
1311 * every time the priority line is asserted (BT is sending signals on the
1312 * priority line in the PCIx).
1313 * set bt_coex_active to false, uCode will ignore the BT activity and
1314 * perform the normal operation
1315 *
1316 * User might experience transmit issue on some platform due to WiFi/BT
1317 * co-exist problem. The possible behaviors are:
1318 * Able to scan and finding all the available AP
1319 * Not able to associate with any AP
1320 * On those platforms, WiFi communication can be restored by set
1321 * "bt_coex_active" module parameter to "false"
1322 *
1323 * default: bt_coex_active = true (BT_COEX_ENABLE)
1324 */
1325 module_param_named(bt_coex_active, iwlwifi_mod_params.bt_coex_active,
1326 bool, S_IRUGO);
1327 MODULE_PARM_DESC(bt_coex_active, "enable wifi/bt co-exist (default: enable)");
1328
1329 module_param_named(led_mode, iwlwifi_mod_params.led_mode, int, S_IRUGO);
1330 MODULE_PARM_DESC(led_mode, "0=system default, "
1331 "1=On(RF On)/Off(RF Off), 2=blinking, 3=Off (default: 0)");
1332
1333 module_param_named(power_save, iwlwifi_mod_params.power_save,
1334 bool, S_IRUGO);
1335 MODULE_PARM_DESC(power_save,
1336 "enable WiFi power management (default: disable)");
1337
1338 module_param_named(power_level, iwlwifi_mod_params.power_level,
1339 int, S_IRUGO);
1340 MODULE_PARM_DESC(power_level,
1341 "default power save level (range from 1 - 5, default: 1)");
Linux with added FPC-III support