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 - 2017 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 - 2017 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 "fw/img.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"
90 MODULE_DESCRIPTION(DRV_DESCRIPTION);
91 MODULE_AUTHOR(DRV_COPYRIGHT " " DRV_AUTHOR);
92 MODULE_LICENSE("GPL");
93
94 #ifdef CONFIG_IWLWIFI_DEBUGFS
95 static 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 * @fw_index: firmware revision to try loading
106 * @firmware_name: composite filename of ucode file to load
107 * @request_firmware_complete: the firmware has been obtained from user space
108 */
109 struct iwl_drv {
110 struct list_head list;
111 struct iwl_fw fw;
112
113 struct iwl_op_mode *op_mode;
114 struct iwl_trans *trans;
115 struct device *dev;
116
117 int fw_index; /* firmware we're trying to load */
118 char firmware_name[64]; /* name of firmware file to load */
119
120 struct completion request_firmware_complete;
121
122 #ifdef CONFIG_IWLWIFI_DEBUGFS
123 struct dentry *dbgfs_drv;
124 struct dentry *dbgfs_trans;
125 struct dentry *dbgfs_op_mode;
126 #endif
127 };
128
129 enum {
130 DVM_OP_MODE,
131 MVM_OP_MODE,
132 };
133
134 /* Protects the table contents, i.e. the ops pointer & drv list */
135 static struct mutex iwlwifi_opmode_table_mtx;
136 static struct iwlwifi_opmode_table {
137 const char *name; /* name: iwldvm, iwlmvm, etc */
138 const struct iwl_op_mode_ops *ops; /* pointer to op_mode ops */
139 struct list_head drv; /* list of devices using this op_mode */
140 } iwlwifi_opmode_table[] = { /* ops set when driver is initialized */
141 [DVM_OP_MODE] = { .name = "iwldvm", .ops = NULL },
142 [MVM_OP_MODE] = { .name = "iwlmvm", .ops = NULL },
143 };
144
145 #define IWL_DEFAULT_SCAN_CHANNELS 40
146
147 /*
148 * struct fw_sec: Just for the image parsing process.
149 * For the fw storage we are using struct fw_desc.
150 */
151 struct fw_sec {
152 const void *data; /* the sec data */
153 size_t size; /* section size */
154 u32 offset; /* offset of writing in the device */
155 };
156
iwl_free_fw_desc(struct iwl_drv * drv,struct fw_desc * desc)157 static void iwl_free_fw_desc(struct iwl_drv *drv, struct fw_desc *desc)
158 {
159 vfree(desc->data);
160 desc->data = NULL;
161 desc->len = 0;
162 }
163
iwl_free_fw_img(struct iwl_drv * drv,struct fw_img * img)164 static void iwl_free_fw_img(struct iwl_drv *drv, struct fw_img *img)
165 {
166 int i;
167 for (i = 0; i < img->num_sec; i++)
168 iwl_free_fw_desc(drv, &img->sec[i]);
169 kfree(img->sec);
170 }
171
iwl_dealloc_ucode(struct iwl_drv * drv)172 static void iwl_dealloc_ucode(struct iwl_drv *drv)
173 {
174 int i;
175
176 kfree(drv->fw.dbg_dest_tlv);
177 for (i = 0; i < ARRAY_SIZE(drv->fw.dbg_conf_tlv); i++)
178 kfree(drv->fw.dbg_conf_tlv[i]);
179 for (i = 0; i < ARRAY_SIZE(drv->fw.dbg_trigger_tlv); i++)
180 kfree(drv->fw.dbg_trigger_tlv[i]);
181 kfree(drv->fw.dbg_mem_tlv);
182 kfree(drv->fw.iml);
183
184 for (i = 0; i < IWL_UCODE_TYPE_MAX; i++)
185 iwl_free_fw_img(drv, drv->fw.img + i);
186 }
187
iwl_alloc_fw_desc(struct iwl_drv * drv,struct fw_desc * desc,struct fw_sec * sec)188 static int iwl_alloc_fw_desc(struct iwl_drv *drv, struct fw_desc *desc,
189 struct fw_sec *sec)
190 {
191 void *data;
192
193 desc->data = NULL;
194
195 if (!sec || !sec->size)
196 return -EINVAL;
197
198 data = vmalloc(sec->size);
199 if (!data)
200 return -ENOMEM;
201
202 desc->len = sec->size;
203 desc->offset = sec->offset;
204 memcpy(data, sec->data, desc->len);
205 desc->data = data;
206
207 return 0;
208 }
209
210 static void iwl_req_fw_callback(const struct firmware *ucode_raw,
211 void *context);
212
iwl_request_firmware(struct iwl_drv * drv,bool first)213 static int iwl_request_firmware(struct iwl_drv *drv, bool first)
214 {
215 const struct iwl_cfg *cfg = drv->trans->cfg;
216 char tag[8];
217 const char *fw_pre_name;
218
219 if (drv->trans->cfg->device_family == IWL_DEVICE_FAMILY_9000 &&
220 (CSR_HW_REV_STEP(drv->trans->hw_rev) == SILICON_B_STEP ||
221 CSR_HW_REV_STEP(drv->trans->hw_rev) == SILICON_C_STEP))
222 fw_pre_name = cfg->fw_name_pre_b_or_c_step;
223 else if (drv->trans->cfg->integrated &&
224 CSR_HW_RFID_STEP(drv->trans->hw_rf_id) == SILICON_B_STEP &&
225 cfg->fw_name_pre_rf_next_step)
226 fw_pre_name = cfg->fw_name_pre_rf_next_step;
227 else
228 fw_pre_name = cfg->fw_name_pre;
229
230 if (first) {
231 drv->fw_index = cfg->ucode_api_max;
232 sprintf(tag, "%d", drv->fw_index);
233 } else {
234 drv->fw_index--;
235 sprintf(tag, "%d", drv->fw_index);
236 }
237
238 if (drv->fw_index < cfg->ucode_api_min) {
239 IWL_ERR(drv, "no suitable firmware found!\n");
240
241 if (cfg->ucode_api_min == cfg->ucode_api_max) {
242 IWL_ERR(drv, "%s%d is required\n", fw_pre_name,
243 cfg->ucode_api_max);
244 } else {
245 IWL_ERR(drv, "minimum version required: %s%d\n",
246 fw_pre_name,
247 cfg->ucode_api_min);
248 IWL_ERR(drv, "maximum version supported: %s%d\n",
249 fw_pre_name,
250 cfg->ucode_api_max);
251 }
252
253 IWL_ERR(drv,
254 "check git://git.kernel.org/pub/scm/linux/kernel/git/firmware/linux-firmware.git\n");
255 return -ENOENT;
256 }
257
258 snprintf(drv->firmware_name, sizeof(drv->firmware_name), "%s%s.ucode",
259 fw_pre_name, tag);
260
261 IWL_DEBUG_INFO(drv, "attempting to load firmware '%s'\n",
262 drv->firmware_name);
263
264 return request_firmware_nowait(THIS_MODULE, 1, drv->firmware_name,
265 drv->trans->dev,
266 GFP_KERNEL, drv, iwl_req_fw_callback);
267 }
268
269 struct fw_img_parsing {
270 struct fw_sec *sec;
271 int sec_counter;
272 };
273
274 /*
275 * struct fw_sec_parsing: to extract fw section and it's offset from tlv
276 */
277 struct fw_sec_parsing {
278 __le32 offset;
279 const u8 data[];
280 } __packed;
281
282 /**
283 * struct iwl_tlv_calib_data - parse the default calib data from TLV
284 *
285 * @ucode_type: the uCode to which the following default calib relates.
286 * @calib: default calibrations.
287 */
288 struct iwl_tlv_calib_data {
289 __le32 ucode_type;
290 struct iwl_tlv_calib_ctrl calib;
291 } __packed;
292
293 struct iwl_firmware_pieces {
294 struct fw_img_parsing img[IWL_UCODE_TYPE_MAX];
295
296 u32 init_evtlog_ptr, init_evtlog_size, init_errlog_ptr;
297 u32 inst_evtlog_ptr, inst_evtlog_size, inst_errlog_ptr;
298
299 /* FW debug data parsed for driver usage */
300 bool dbg_dest_tlv_init;
301 u8 *dbg_dest_ver;
302 union {
303 struct iwl_fw_dbg_dest_tlv *dbg_dest_tlv;
304 struct iwl_fw_dbg_dest_tlv_v1 *dbg_dest_tlv_v1;
305 };
306 struct iwl_fw_dbg_conf_tlv *dbg_conf_tlv[FW_DBG_CONF_MAX];
307 size_t dbg_conf_tlv_len[FW_DBG_CONF_MAX];
308 struct iwl_fw_dbg_trigger_tlv *dbg_trigger_tlv[FW_DBG_TRIGGER_MAX];
309 size_t dbg_trigger_tlv_len[FW_DBG_TRIGGER_MAX];
310 struct iwl_fw_dbg_mem_seg_tlv *dbg_mem_tlv;
311 size_t n_dbg_mem_tlv;
312 };
313
314 /*
315 * These functions are just to extract uCode section data from the pieces
316 * structure.
317 */
get_sec(struct iwl_firmware_pieces * pieces,enum iwl_ucode_type type,int sec)318 static struct fw_sec *get_sec(struct iwl_firmware_pieces *pieces,
319 enum iwl_ucode_type type,
320 int sec)
321 {
322 return &pieces->img[type].sec[sec];
323 }
324
alloc_sec_data(struct iwl_firmware_pieces * pieces,enum iwl_ucode_type type,int sec)325 static void alloc_sec_data(struct iwl_firmware_pieces *pieces,
326 enum iwl_ucode_type type,
327 int sec)
328 {
329 struct fw_img_parsing *img = &pieces->img[type];
330 struct fw_sec *sec_memory;
331 int size = sec + 1;
332 size_t alloc_size = sizeof(*img->sec) * size;
333
334 if (img->sec && img->sec_counter >= size)
335 return;
336
337 sec_memory = krealloc(img->sec, alloc_size, GFP_KERNEL);
338 if (!sec_memory)
339 return;
340
341 img->sec = sec_memory;
342 img->sec_counter = size;
343 }
344
set_sec_data(struct iwl_firmware_pieces * pieces,enum iwl_ucode_type type,int sec,const void * data)345 static void set_sec_data(struct iwl_firmware_pieces *pieces,
346 enum iwl_ucode_type type,
347 int sec,
348 const void *data)
349 {
350 alloc_sec_data(pieces, type, sec);
351
352 pieces->img[type].sec[sec].data = data;
353 }
354
set_sec_size(struct iwl_firmware_pieces * pieces,enum iwl_ucode_type type,int sec,size_t size)355 static void set_sec_size(struct iwl_firmware_pieces *pieces,
356 enum iwl_ucode_type type,
357 int sec,
358 size_t size)
359 {
360 alloc_sec_data(pieces, type, sec);
361
362 pieces->img[type].sec[sec].size = size;
363 }
364
get_sec_size(struct iwl_firmware_pieces * pieces,enum iwl_ucode_type type,int sec)365 static size_t get_sec_size(struct iwl_firmware_pieces *pieces,
366 enum iwl_ucode_type type,
367 int sec)
368 {
369 return pieces->img[type].sec[sec].size;
370 }
371
set_sec_offset(struct iwl_firmware_pieces * pieces,enum iwl_ucode_type type,int sec,u32 offset)372 static void set_sec_offset(struct iwl_firmware_pieces *pieces,
373 enum iwl_ucode_type type,
374 int sec,
375 u32 offset)
376 {
377 alloc_sec_data(pieces, type, sec);
378
379 pieces->img[type].sec[sec].offset = offset;
380 }
381
iwl_store_cscheme(struct iwl_fw * fw,const u8 * data,const u32 len)382 static int iwl_store_cscheme(struct iwl_fw *fw, const u8 *data, const u32 len)
383 {
384 int i, j;
385 struct iwl_fw_cscheme_list *l = (struct iwl_fw_cscheme_list *)data;
386 struct iwl_fw_cipher_scheme *fwcs;
387
388 if (len < sizeof(*l) ||
389 len < sizeof(l->size) + l->size * sizeof(l->cs[0]))
390 return -EINVAL;
391
392 for (i = 0, j = 0; i < IWL_UCODE_MAX_CS && i < l->size; i++) {
393 fwcs = &l->cs[j];
394
395 /* we skip schemes with zero cipher suite selector */
396 if (!fwcs->cipher)
397 continue;
398
399 fw->cs[j++] = *fwcs;
400 }
401
402 return 0;
403 }
404
405 /*
406 * Gets uCode section from tlv.
407 */
iwl_store_ucode_sec(struct iwl_firmware_pieces * pieces,const void * data,enum iwl_ucode_type type,int size)408 static int iwl_store_ucode_sec(struct iwl_firmware_pieces *pieces,
409 const void *data, enum iwl_ucode_type type,
410 int size)
411 {
412 struct fw_img_parsing *img;
413 struct fw_sec *sec;
414 struct fw_sec_parsing *sec_parse;
415 size_t alloc_size;
416
417 if (WARN_ON(!pieces || !data || type >= IWL_UCODE_TYPE_MAX))
418 return -1;
419
420 sec_parse = (struct fw_sec_parsing *)data;
421
422 img = &pieces->img[type];
423
424 alloc_size = sizeof(*img->sec) * (img->sec_counter + 1);
425 sec = krealloc(img->sec, alloc_size, GFP_KERNEL);
426 if (!sec)
427 return -ENOMEM;
428 img->sec = sec;
429
430 sec = &img->sec[img->sec_counter];
431
432 sec->offset = le32_to_cpu(sec_parse->offset);
433 sec->data = sec_parse->data;
434 sec->size = size - sizeof(sec_parse->offset);
435
436 ++img->sec_counter;
437
438 return 0;
439 }
440
iwl_set_default_calib(struct iwl_drv * drv,const u8 * data)441 static int iwl_set_default_calib(struct iwl_drv *drv, const u8 *data)
442 {
443 struct iwl_tlv_calib_data *def_calib =
444 (struct iwl_tlv_calib_data *)data;
445 u32 ucode_type = le32_to_cpu(def_calib->ucode_type);
446 if (ucode_type >= IWL_UCODE_TYPE_MAX) {
447 IWL_ERR(drv, "Wrong ucode_type %u for default calibration.\n",
448 ucode_type);
449 return -EINVAL;
450 }
451 drv->fw.default_calib[ucode_type].flow_trigger =
452 def_calib->calib.flow_trigger;
453 drv->fw.default_calib[ucode_type].event_trigger =
454 def_calib->calib.event_trigger;
455
456 return 0;
457 }
458
iwl_set_ucode_api_flags(struct iwl_drv * drv,const u8 * data,struct iwl_ucode_capabilities * capa)459 static void iwl_set_ucode_api_flags(struct iwl_drv *drv, const u8 *data,
460 struct iwl_ucode_capabilities *capa)
461 {
462 const struct iwl_ucode_api *ucode_api = (void *)data;
463 u32 api_index = le32_to_cpu(ucode_api->api_index);
464 u32 api_flags = le32_to_cpu(ucode_api->api_flags);
465 int i;
466
467 if (api_index >= DIV_ROUND_UP(NUM_IWL_UCODE_TLV_API, 32)) {
468 IWL_WARN(drv,
469 "api flags index %d larger than supported by driver\n",
470 api_index);
471 return;
472 }
473
474 for (i = 0; i < 32; i++) {
475 if (api_flags & BIT(i))
476 __set_bit(i + 32 * api_index, capa->_api);
477 }
478 }
479
iwl_set_ucode_capabilities(struct iwl_drv * drv,const u8 * data,struct iwl_ucode_capabilities * capa)480 static void iwl_set_ucode_capabilities(struct iwl_drv *drv, const u8 *data,
481 struct iwl_ucode_capabilities *capa)
482 {
483 const struct iwl_ucode_capa *ucode_capa = (void *)data;
484 u32 api_index = le32_to_cpu(ucode_capa->api_index);
485 u32 api_flags = le32_to_cpu(ucode_capa->api_capa);
486 int i;
487
488 if (api_index >= DIV_ROUND_UP(NUM_IWL_UCODE_TLV_CAPA, 32)) {
489 IWL_WARN(drv,
490 "capa flags index %d larger than supported by driver\n",
491 api_index);
492 return;
493 }
494
495 for (i = 0; i < 32; i++) {
496 if (api_flags & BIT(i))
497 __set_bit(i + 32 * api_index, capa->_capa);
498 }
499 }
500
iwl_parse_v1_v2_firmware(struct iwl_drv * drv,const struct firmware * ucode_raw,struct iwl_firmware_pieces * pieces)501 static int iwl_parse_v1_v2_firmware(struct iwl_drv *drv,
502 const struct firmware *ucode_raw,
503 struct iwl_firmware_pieces *pieces)
504 {
505 struct iwl_ucode_header *ucode = (void *)ucode_raw->data;
506 u32 api_ver, hdr_size, build;
507 char buildstr[25];
508 const u8 *src;
509
510 drv->fw.ucode_ver = le32_to_cpu(ucode->ver);
511 api_ver = IWL_UCODE_API(drv->fw.ucode_ver);
512
513 switch (api_ver) {
514 default:
515 hdr_size = 28;
516 if (ucode_raw->size < hdr_size) {
517 IWL_ERR(drv, "File size too small!\n");
518 return -EINVAL;
519 }
520 build = le32_to_cpu(ucode->u.v2.build);
521 set_sec_size(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_INST,
522 le32_to_cpu(ucode->u.v2.inst_size));
523 set_sec_size(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_DATA,
524 le32_to_cpu(ucode->u.v2.data_size));
525 set_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_INST,
526 le32_to_cpu(ucode->u.v2.init_size));
527 set_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_DATA,
528 le32_to_cpu(ucode->u.v2.init_data_size));
529 src = ucode->u.v2.data;
530 break;
531 case 0:
532 case 1:
533 case 2:
534 hdr_size = 24;
535 if (ucode_raw->size < hdr_size) {
536 IWL_ERR(drv, "File size too small!\n");
537 return -EINVAL;
538 }
539 build = 0;
540 set_sec_size(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_INST,
541 le32_to_cpu(ucode->u.v1.inst_size));
542 set_sec_size(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_DATA,
543 le32_to_cpu(ucode->u.v1.data_size));
544 set_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_INST,
545 le32_to_cpu(ucode->u.v1.init_size));
546 set_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_DATA,
547 le32_to_cpu(ucode->u.v1.init_data_size));
548 src = ucode->u.v1.data;
549 break;
550 }
551
552 if (build)
553 sprintf(buildstr, " build %u", build);
554 else
555 buildstr[0] = '\0';
556
557 snprintf(drv->fw.fw_version,
558 sizeof(drv->fw.fw_version),
559 "%u.%u.%u.%u%s",
560 IWL_UCODE_MAJOR(drv->fw.ucode_ver),
561 IWL_UCODE_MINOR(drv->fw.ucode_ver),
562 IWL_UCODE_API(drv->fw.ucode_ver),
563 IWL_UCODE_SERIAL(drv->fw.ucode_ver),
564 buildstr);
565
566 /* Verify size of file vs. image size info in file's header */
567
568 if (ucode_raw->size != hdr_size +
569 get_sec_size(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_INST) +
570 get_sec_size(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_DATA) +
571 get_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_INST) +
572 get_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_DATA)) {
573
574 IWL_ERR(drv,
575 "uCode file size %d does not match expected size\n",
576 (int)ucode_raw->size);
577 return -EINVAL;
578 }
579
580
581 set_sec_data(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_INST, src);
582 src += get_sec_size(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_INST);
583 set_sec_offset(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_INST,
584 IWLAGN_RTC_INST_LOWER_BOUND);
585 set_sec_data(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_DATA, src);
586 src += get_sec_size(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_DATA);
587 set_sec_offset(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_DATA,
588 IWLAGN_RTC_DATA_LOWER_BOUND);
589 set_sec_data(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_INST, src);
590 src += get_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_INST);
591 set_sec_offset(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_INST,
592 IWLAGN_RTC_INST_LOWER_BOUND);
593 set_sec_data(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_DATA, src);
594 src += get_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_DATA);
595 set_sec_offset(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_DATA,
596 IWLAGN_RTC_DATA_LOWER_BOUND);
597 return 0;
598 }
599
iwl_parse_tlv_firmware(struct iwl_drv * drv,const struct firmware * ucode_raw,struct iwl_firmware_pieces * pieces,struct iwl_ucode_capabilities * capa,bool * usniffer_images)600 static int iwl_parse_tlv_firmware(struct iwl_drv *drv,
601 const struct firmware *ucode_raw,
602 struct iwl_firmware_pieces *pieces,
603 struct iwl_ucode_capabilities *capa,
604 bool *usniffer_images)
605 {
606 struct iwl_tlv_ucode_header *ucode = (void *)ucode_raw->data;
607 struct iwl_ucode_tlv *tlv;
608 size_t len = ucode_raw->size;
609 const u8 *data;
610 u32 tlv_len;
611 u32 usniffer_img;
612 enum iwl_ucode_tlv_type tlv_type;
613 const u8 *tlv_data;
614 char buildstr[25];
615 u32 build, paging_mem_size;
616 int num_of_cpus;
617 bool usniffer_req = false;
618
619 if (len < sizeof(*ucode)) {
620 IWL_ERR(drv, "uCode has invalid length: %zd\n", len);
621 return -EINVAL;
622 }
623
624 if (ucode->magic != cpu_to_le32(IWL_TLV_UCODE_MAGIC)) {
625 IWL_ERR(drv, "invalid uCode magic: 0X%x\n",
626 le32_to_cpu(ucode->magic));
627 return -EINVAL;
628 }
629
630 drv->fw.ucode_ver = le32_to_cpu(ucode->ver);
631 memcpy(drv->fw.human_readable, ucode->human_readable,
632 sizeof(drv->fw.human_readable));
633 build = le32_to_cpu(ucode->build);
634
635 if (build)
636 sprintf(buildstr, " build %u", build);
637 else
638 buildstr[0] = '\0';
639
640 snprintf(drv->fw.fw_version,
641 sizeof(drv->fw.fw_version),
642 "%u.%u.%u.%u%s",
643 IWL_UCODE_MAJOR(drv->fw.ucode_ver),
644 IWL_UCODE_MINOR(drv->fw.ucode_ver),
645 IWL_UCODE_API(drv->fw.ucode_ver),
646 IWL_UCODE_SERIAL(drv->fw.ucode_ver),
647 buildstr);
648
649 data = ucode->data;
650
651 len -= sizeof(*ucode);
652
653 while (len >= sizeof(*tlv)) {
654 len -= sizeof(*tlv);
655 tlv = (void *)data;
656
657 tlv_len = le32_to_cpu(tlv->length);
658 tlv_type = le32_to_cpu(tlv->type);
659 tlv_data = tlv->data;
660
661 if (len < tlv_len) {
662 IWL_ERR(drv, "invalid TLV len: %zd/%u\n",
663 len, tlv_len);
664 return -EINVAL;
665 }
666 len -= ALIGN(tlv_len, 4);
667 data += sizeof(*tlv) + ALIGN(tlv_len, 4);
668
669 switch (tlv_type) {
670 case IWL_UCODE_TLV_INST:
671 set_sec_data(pieces, IWL_UCODE_REGULAR,
672 IWL_UCODE_SECTION_INST, tlv_data);
673 set_sec_size(pieces, IWL_UCODE_REGULAR,
674 IWL_UCODE_SECTION_INST, tlv_len);
675 set_sec_offset(pieces, IWL_UCODE_REGULAR,
676 IWL_UCODE_SECTION_INST,
677 IWLAGN_RTC_INST_LOWER_BOUND);
678 break;
679 case IWL_UCODE_TLV_DATA:
680 set_sec_data(pieces, IWL_UCODE_REGULAR,
681 IWL_UCODE_SECTION_DATA, tlv_data);
682 set_sec_size(pieces, IWL_UCODE_REGULAR,
683 IWL_UCODE_SECTION_DATA, tlv_len);
684 set_sec_offset(pieces, IWL_UCODE_REGULAR,
685 IWL_UCODE_SECTION_DATA,
686 IWLAGN_RTC_DATA_LOWER_BOUND);
687 break;
688 case IWL_UCODE_TLV_INIT:
689 set_sec_data(pieces, IWL_UCODE_INIT,
690 IWL_UCODE_SECTION_INST, tlv_data);
691 set_sec_size(pieces, IWL_UCODE_INIT,
692 IWL_UCODE_SECTION_INST, tlv_len);
693 set_sec_offset(pieces, IWL_UCODE_INIT,
694 IWL_UCODE_SECTION_INST,
695 IWLAGN_RTC_INST_LOWER_BOUND);
696 break;
697 case IWL_UCODE_TLV_INIT_DATA:
698 set_sec_data(pieces, IWL_UCODE_INIT,
699 IWL_UCODE_SECTION_DATA, tlv_data);
700 set_sec_size(pieces, IWL_UCODE_INIT,
701 IWL_UCODE_SECTION_DATA, tlv_len);
702 set_sec_offset(pieces, IWL_UCODE_INIT,
703 IWL_UCODE_SECTION_DATA,
704 IWLAGN_RTC_DATA_LOWER_BOUND);
705 break;
706 case IWL_UCODE_TLV_BOOT:
707 IWL_ERR(drv, "Found unexpected BOOT ucode\n");
708 break;
709 case IWL_UCODE_TLV_PROBE_MAX_LEN:
710 if (tlv_len != sizeof(u32))
711 goto invalid_tlv_len;
712 capa->max_probe_length =
713 le32_to_cpup((__le32 *)tlv_data);
714 break;
715 case IWL_UCODE_TLV_PAN:
716 if (tlv_len)
717 goto invalid_tlv_len;
718 capa->flags |= IWL_UCODE_TLV_FLAGS_PAN;
719 break;
720 case IWL_UCODE_TLV_FLAGS:
721 /* must be at least one u32 */
722 if (tlv_len < sizeof(u32))
723 goto invalid_tlv_len;
724 /* and a proper number of u32s */
725 if (tlv_len % sizeof(u32))
726 goto invalid_tlv_len;
727 /*
728 * This driver only reads the first u32 as
729 * right now no more features are defined,
730 * if that changes then either the driver
731 * will not work with the new firmware, or
732 * it'll not take advantage of new features.
733 */
734 capa->flags = le32_to_cpup((__le32 *)tlv_data);
735 break;
736 case IWL_UCODE_TLV_API_CHANGES_SET:
737 if (tlv_len != sizeof(struct iwl_ucode_api))
738 goto invalid_tlv_len;
739 iwl_set_ucode_api_flags(drv, tlv_data, capa);
740 break;
741 case IWL_UCODE_TLV_ENABLED_CAPABILITIES:
742 if (tlv_len != sizeof(struct iwl_ucode_capa))
743 goto invalid_tlv_len;
744 iwl_set_ucode_capabilities(drv, tlv_data, capa);
745 break;
746 case IWL_UCODE_TLV_INIT_EVTLOG_PTR:
747 if (tlv_len != sizeof(u32))
748 goto invalid_tlv_len;
749 pieces->init_evtlog_ptr =
750 le32_to_cpup((__le32 *)tlv_data);
751 break;
752 case IWL_UCODE_TLV_INIT_EVTLOG_SIZE:
753 if (tlv_len != sizeof(u32))
754 goto invalid_tlv_len;
755 pieces->init_evtlog_size =
756 le32_to_cpup((__le32 *)tlv_data);
757 break;
758 case IWL_UCODE_TLV_INIT_ERRLOG_PTR:
759 if (tlv_len != sizeof(u32))
760 goto invalid_tlv_len;
761 pieces->init_errlog_ptr =
762 le32_to_cpup((__le32 *)tlv_data);
763 break;
764 case IWL_UCODE_TLV_RUNT_EVTLOG_PTR:
765 if (tlv_len != sizeof(u32))
766 goto invalid_tlv_len;
767 pieces->inst_evtlog_ptr =
768 le32_to_cpup((__le32 *)tlv_data);
769 break;
770 case IWL_UCODE_TLV_RUNT_EVTLOG_SIZE:
771 if (tlv_len != sizeof(u32))
772 goto invalid_tlv_len;
773 pieces->inst_evtlog_size =
774 le32_to_cpup((__le32 *)tlv_data);
775 break;
776 case IWL_UCODE_TLV_RUNT_ERRLOG_PTR:
777 if (tlv_len != sizeof(u32))
778 goto invalid_tlv_len;
779 pieces->inst_errlog_ptr =
780 le32_to_cpup((__le32 *)tlv_data);
781 break;
782 case IWL_UCODE_TLV_ENHANCE_SENS_TBL:
783 if (tlv_len)
784 goto invalid_tlv_len;
785 drv->fw.enhance_sensitivity_table = true;
786 break;
787 case IWL_UCODE_TLV_WOWLAN_INST:
788 set_sec_data(pieces, IWL_UCODE_WOWLAN,
789 IWL_UCODE_SECTION_INST, tlv_data);
790 set_sec_size(pieces, IWL_UCODE_WOWLAN,
791 IWL_UCODE_SECTION_INST, tlv_len);
792 set_sec_offset(pieces, IWL_UCODE_WOWLAN,
793 IWL_UCODE_SECTION_INST,
794 IWLAGN_RTC_INST_LOWER_BOUND);
795 break;
796 case IWL_UCODE_TLV_WOWLAN_DATA:
797 set_sec_data(pieces, IWL_UCODE_WOWLAN,
798 IWL_UCODE_SECTION_DATA, tlv_data);
799 set_sec_size(pieces, IWL_UCODE_WOWLAN,
800 IWL_UCODE_SECTION_DATA, tlv_len);
801 set_sec_offset(pieces, IWL_UCODE_WOWLAN,
802 IWL_UCODE_SECTION_DATA,
803 IWLAGN_RTC_DATA_LOWER_BOUND);
804 break;
805 case IWL_UCODE_TLV_PHY_CALIBRATION_SIZE:
806 if (tlv_len != sizeof(u32))
807 goto invalid_tlv_len;
808 capa->standard_phy_calibration_size =
809 le32_to_cpup((__le32 *)tlv_data);
810 break;
811 case IWL_UCODE_TLV_SEC_RT:
812 iwl_store_ucode_sec(pieces, tlv_data, IWL_UCODE_REGULAR,
813 tlv_len);
814 drv->fw.type = IWL_FW_MVM;
815 break;
816 case IWL_UCODE_TLV_SEC_INIT:
817 iwl_store_ucode_sec(pieces, tlv_data, IWL_UCODE_INIT,
818 tlv_len);
819 drv->fw.type = IWL_FW_MVM;
820 break;
821 case IWL_UCODE_TLV_SEC_WOWLAN:
822 iwl_store_ucode_sec(pieces, tlv_data, IWL_UCODE_WOWLAN,
823 tlv_len);
824 drv->fw.type = IWL_FW_MVM;
825 break;
826 case IWL_UCODE_TLV_DEF_CALIB:
827 if (tlv_len != sizeof(struct iwl_tlv_calib_data))
828 goto invalid_tlv_len;
829 if (iwl_set_default_calib(drv, tlv_data))
830 goto tlv_error;
831 break;
832 case IWL_UCODE_TLV_PHY_SKU:
833 if (tlv_len != sizeof(u32))
834 goto invalid_tlv_len;
835 drv->fw.phy_config = le32_to_cpup((__le32 *)tlv_data);
836 drv->fw.valid_tx_ant = (drv->fw.phy_config &
837 FW_PHY_CFG_TX_CHAIN) >>
838 FW_PHY_CFG_TX_CHAIN_POS;
839 drv->fw.valid_rx_ant = (drv->fw.phy_config &
840 FW_PHY_CFG_RX_CHAIN) >>
841 FW_PHY_CFG_RX_CHAIN_POS;
842 break;
843 case IWL_UCODE_TLV_SECURE_SEC_RT:
844 iwl_store_ucode_sec(pieces, tlv_data, IWL_UCODE_REGULAR,
845 tlv_len);
846 drv->fw.type = IWL_FW_MVM;
847 break;
848 case IWL_UCODE_TLV_SECURE_SEC_INIT:
849 iwl_store_ucode_sec(pieces, tlv_data, IWL_UCODE_INIT,
850 tlv_len);
851 drv->fw.type = IWL_FW_MVM;
852 break;
853 case IWL_UCODE_TLV_SECURE_SEC_WOWLAN:
854 iwl_store_ucode_sec(pieces, tlv_data, IWL_UCODE_WOWLAN,
855 tlv_len);
856 drv->fw.type = IWL_FW_MVM;
857 break;
858 case IWL_UCODE_TLV_NUM_OF_CPU:
859 if (tlv_len != sizeof(u32))
860 goto invalid_tlv_len;
861 num_of_cpus =
862 le32_to_cpup((__le32 *)tlv_data);
863
864 if (num_of_cpus == 2) {
865 drv->fw.img[IWL_UCODE_REGULAR].is_dual_cpus =
866 true;
867 drv->fw.img[IWL_UCODE_INIT].is_dual_cpus =
868 true;
869 drv->fw.img[IWL_UCODE_WOWLAN].is_dual_cpus =
870 true;
871 } else if ((num_of_cpus > 2) || (num_of_cpus < 1)) {
872 IWL_ERR(drv, "Driver support upto 2 CPUs\n");
873 return -EINVAL;
874 }
875 break;
876 case IWL_UCODE_TLV_CSCHEME:
877 if (iwl_store_cscheme(&drv->fw, tlv_data, tlv_len))
878 goto invalid_tlv_len;
879 break;
880 case IWL_UCODE_TLV_N_SCAN_CHANNELS:
881 if (tlv_len != sizeof(u32))
882 goto invalid_tlv_len;
883 capa->n_scan_channels =
884 le32_to_cpup((__le32 *)tlv_data);
885 break;
886 case IWL_UCODE_TLV_FW_VERSION: {
887 __le32 *ptr = (void *)tlv_data;
888 u32 major, minor;
889 u8 local_comp;
890
891 if (tlv_len != sizeof(u32) * 3)
892 goto invalid_tlv_len;
893
894 major = le32_to_cpup(ptr++);
895 minor = le32_to_cpup(ptr++);
896 local_comp = le32_to_cpup(ptr);
897
898 if (major >= 35)
899 snprintf(drv->fw.fw_version,
900 sizeof(drv->fw.fw_version),
901 "%u.%08x.%u", major, minor, local_comp);
902 else
903 snprintf(drv->fw.fw_version,
904 sizeof(drv->fw.fw_version),
905 "%u.%u.%u", major, minor, local_comp);
906 break;
907 }
908 case IWL_UCODE_TLV_FW_DBG_DEST: {
909 struct iwl_fw_dbg_dest_tlv *dest = NULL;
910 struct iwl_fw_dbg_dest_tlv_v1 *dest_v1 = NULL;
911 u8 mon_mode;
912
913 pieces->dbg_dest_ver = (u8 *)tlv_data;
914 if (*pieces->dbg_dest_ver == 1) {
915 dest = (void *)tlv_data;
916 } else if (*pieces->dbg_dest_ver == 0) {
917 dest_v1 = (void *)tlv_data;
918 } else {
919 IWL_ERR(drv,
920 "The version is %d, and it is invalid\n",
921 *pieces->dbg_dest_ver);
922 break;
923 }
924
925 if (pieces->dbg_dest_tlv_init) {
926 IWL_ERR(drv,
927 "dbg destination ignored, already exists\n");
928 break;
929 }
930
931 pieces->dbg_dest_tlv_init = true;
932
933 if (dest_v1) {
934 pieces->dbg_dest_tlv_v1 = dest_v1;
935 mon_mode = dest_v1->monitor_mode;
936 } else {
937 pieces->dbg_dest_tlv = dest;
938 mon_mode = dest->monitor_mode;
939 }
940
941 IWL_INFO(drv, "Found debug destination: %s\n",
942 get_fw_dbg_mode_string(mon_mode));
943
944 drv->fw.dbg_dest_reg_num = (dest_v1) ?
945 tlv_len -
946 offsetof(struct iwl_fw_dbg_dest_tlv_v1,
947 reg_ops) :
948 tlv_len -
949 offsetof(struct iwl_fw_dbg_dest_tlv,
950 reg_ops);
951
952 drv->fw.dbg_dest_reg_num /=
953 sizeof(drv->fw.dbg_dest_tlv->reg_ops[0]);
954
955 break;
956 }
957 case IWL_UCODE_TLV_FW_DBG_CONF: {
958 struct iwl_fw_dbg_conf_tlv *conf = (void *)tlv_data;
959
960 if (!pieces->dbg_dest_tlv_init) {
961 IWL_ERR(drv,
962 "Ignore dbg config %d - no destination configured\n",
963 conf->id);
964 break;
965 }
966
967 if (conf->id >= ARRAY_SIZE(drv->fw.dbg_conf_tlv)) {
968 IWL_ERR(drv,
969 "Skip unknown configuration: %d\n",
970 conf->id);
971 break;
972 }
973
974 if (pieces->dbg_conf_tlv[conf->id]) {
975 IWL_ERR(drv,
976 "Ignore duplicate dbg config %d\n",
977 conf->id);
978 break;
979 }
980
981 if (conf->usniffer)
982 usniffer_req = true;
983
984 IWL_INFO(drv, "Found debug configuration: %d\n",
985 conf->id);
986
987 pieces->dbg_conf_tlv[conf->id] = conf;
988 pieces->dbg_conf_tlv_len[conf->id] = tlv_len;
989 break;
990 }
991 case IWL_UCODE_TLV_FW_DBG_TRIGGER: {
992 struct iwl_fw_dbg_trigger_tlv *trigger =
993 (void *)tlv_data;
994 u32 trigger_id = le32_to_cpu(trigger->id);
995
996 if (trigger_id >= ARRAY_SIZE(drv->fw.dbg_trigger_tlv)) {
997 IWL_ERR(drv,
998 "Skip unknown trigger: %u\n",
999 trigger->id);
1000 break;
1001 }
1002
1003 if (pieces->dbg_trigger_tlv[trigger_id]) {
1004 IWL_ERR(drv,
1005 "Ignore duplicate dbg trigger %u\n",
1006 trigger->id);
1007 break;
1008 }
1009
1010 IWL_INFO(drv, "Found debug trigger: %u\n", trigger->id);
1011
1012 pieces->dbg_trigger_tlv[trigger_id] = trigger;
1013 pieces->dbg_trigger_tlv_len[trigger_id] = tlv_len;
1014 break;
1015 }
1016 case IWL_UCODE_TLV_FW_DBG_DUMP_LST: {
1017 if (tlv_len != sizeof(u32)) {
1018 IWL_ERR(drv,
1019 "dbg lst mask size incorrect, skip\n");
1020 break;
1021 }
1022
1023 drv->fw.dbg_dump_mask =
1024 le32_to_cpup((__le32 *)tlv_data);
1025 break;
1026 }
1027 case IWL_UCODE_TLV_SEC_RT_USNIFFER:
1028 *usniffer_images = true;
1029 iwl_store_ucode_sec(pieces, tlv_data,
1030 IWL_UCODE_REGULAR_USNIFFER,
1031 tlv_len);
1032 break;
1033 case IWL_UCODE_TLV_PAGING:
1034 if (tlv_len != sizeof(u32))
1035 goto invalid_tlv_len;
1036 paging_mem_size = le32_to_cpup((__le32 *)tlv_data);
1037
1038 IWL_DEBUG_FW(drv,
1039 "Paging: paging enabled (size = %u bytes)\n",
1040 paging_mem_size);
1041
1042 if (paging_mem_size > MAX_PAGING_IMAGE_SIZE) {
1043 IWL_ERR(drv,
1044 "Paging: driver supports up to %lu bytes for paging image\n",
1045 MAX_PAGING_IMAGE_SIZE);
1046 return -EINVAL;
1047 }
1048
1049 if (paging_mem_size & (FW_PAGING_SIZE - 1)) {
1050 IWL_ERR(drv,
1051 "Paging: image isn't multiple %lu\n",
1052 FW_PAGING_SIZE);
1053 return -EINVAL;
1054 }
1055
1056 drv->fw.img[IWL_UCODE_REGULAR].paging_mem_size =
1057 paging_mem_size;
1058 usniffer_img = IWL_UCODE_REGULAR_USNIFFER;
1059 drv->fw.img[usniffer_img].paging_mem_size =
1060 paging_mem_size;
1061 break;
1062 case IWL_UCODE_TLV_FW_GSCAN_CAPA:
1063 /* ignored */
1064 break;
1065 case IWL_UCODE_TLV_FW_MEM_SEG: {
1066 struct iwl_fw_dbg_mem_seg_tlv *dbg_mem =
1067 (void *)tlv_data;
1068 u32 type;
1069 size_t size;
1070 struct iwl_fw_dbg_mem_seg_tlv *n;
1071
1072 if (tlv_len != (sizeof(*dbg_mem)))
1073 goto invalid_tlv_len;
1074
1075 type = le32_to_cpu(dbg_mem->data_type);
1076
1077 IWL_DEBUG_INFO(drv, "Found debug memory segment: %u\n",
1078 dbg_mem->data_type);
1079
1080 switch (type & FW_DBG_MEM_TYPE_MASK) {
1081 case FW_DBG_MEM_TYPE_REGULAR:
1082 case FW_DBG_MEM_TYPE_PRPH:
1083 /* we know how to handle these */
1084 break;
1085 default:
1086 IWL_ERR(drv,
1087 "Found debug memory segment with invalid type: 0x%x\n",
1088 type);
1089 return -EINVAL;
1090 }
1091
1092 size = sizeof(*pieces->dbg_mem_tlv) *
1093 (pieces->n_dbg_mem_tlv + 1);
1094 n = krealloc(pieces->dbg_mem_tlv, size, GFP_KERNEL);
1095 if (!n)
1096 return -ENOMEM;
1097 pieces->dbg_mem_tlv = n;
1098 pieces->dbg_mem_tlv[pieces->n_dbg_mem_tlv] = *dbg_mem;
1099 pieces->n_dbg_mem_tlv++;
1100 break;
1101 }
1102 case IWL_UCODE_TLV_IML: {
1103 drv->fw.iml_len = tlv_len;
1104 drv->fw.iml = kmemdup(tlv_data, tlv_len, GFP_KERNEL);
1105 if (!drv->fw.iml)
1106 return -ENOMEM;
1107 break;
1108 }
1109 default:
1110 IWL_DEBUG_INFO(drv, "unknown TLV: %d\n", tlv_type);
1111 break;
1112 }
1113 }
1114
1115 if (!fw_has_capa(capa, IWL_UCODE_TLV_CAPA_USNIFFER_UNIFIED) &&
1116 usniffer_req && !*usniffer_images) {
1117 IWL_ERR(drv,
1118 "user selected to work with usniffer but usniffer image isn't available in ucode package\n");
1119 return -EINVAL;
1120 }
1121
1122 if (len) {
1123 IWL_ERR(drv, "invalid TLV after parsing: %zd\n", len);
1124 iwl_print_hex_dump(drv, IWL_DL_FW, (u8 *)data, len);
1125 return -EINVAL;
1126 }
1127
1128 return 0;
1129
1130 invalid_tlv_len:
1131 IWL_ERR(drv, "TLV %d has invalid size: %u\n", tlv_type, tlv_len);
1132 tlv_error:
1133 iwl_print_hex_dump(drv, IWL_DL_FW, tlv_data, tlv_len);
1134
1135 return -EINVAL;
1136 }
1137
iwl_alloc_ucode(struct iwl_drv * drv,struct iwl_firmware_pieces * pieces,enum iwl_ucode_type type)1138 static int iwl_alloc_ucode(struct iwl_drv *drv,
1139 struct iwl_firmware_pieces *pieces,
1140 enum iwl_ucode_type type)
1141 {
1142 int i;
1143 struct fw_desc *sec;
1144
1145 sec = kcalloc(pieces->img[type].sec_counter, sizeof(*sec), GFP_KERNEL);
1146 if (!sec)
1147 return -ENOMEM;
1148 drv->fw.img[type].sec = sec;
1149 drv->fw.img[type].num_sec = pieces->img[type].sec_counter;
1150
1151 for (i = 0; i < pieces->img[type].sec_counter; i++)
1152 if (iwl_alloc_fw_desc(drv, &sec[i], get_sec(pieces, type, i)))
1153 return -ENOMEM;
1154
1155 return 0;
1156 }
1157
validate_sec_sizes(struct iwl_drv * drv,struct iwl_firmware_pieces * pieces,const struct iwl_cfg * cfg)1158 static int validate_sec_sizes(struct iwl_drv *drv,
1159 struct iwl_firmware_pieces *pieces,
1160 const struct iwl_cfg *cfg)
1161 {
1162 IWL_DEBUG_INFO(drv, "f/w package hdr runtime inst size = %zd\n",
1163 get_sec_size(pieces, IWL_UCODE_REGULAR,
1164 IWL_UCODE_SECTION_INST));
1165 IWL_DEBUG_INFO(drv, "f/w package hdr runtime data size = %zd\n",
1166 get_sec_size(pieces, IWL_UCODE_REGULAR,
1167 IWL_UCODE_SECTION_DATA));
1168 IWL_DEBUG_INFO(drv, "f/w package hdr init inst size = %zd\n",
1169 get_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_INST));
1170 IWL_DEBUG_INFO(drv, "f/w package hdr init data size = %zd\n",
1171 get_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_DATA));
1172
1173 /* Verify that uCode images will fit in card's SRAM. */
1174 if (get_sec_size(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_INST) >
1175 cfg->max_inst_size) {
1176 IWL_ERR(drv, "uCode instr len %zd too large to fit in\n",
1177 get_sec_size(pieces, IWL_UCODE_REGULAR,
1178 IWL_UCODE_SECTION_INST));
1179 return -1;
1180 }
1181
1182 if (get_sec_size(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_DATA) >
1183 cfg->max_data_size) {
1184 IWL_ERR(drv, "uCode data len %zd too large to fit in\n",
1185 get_sec_size(pieces, IWL_UCODE_REGULAR,
1186 IWL_UCODE_SECTION_DATA));
1187 return -1;
1188 }
1189
1190 if (get_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_INST) >
1191 cfg->max_inst_size) {
1192 IWL_ERR(drv, "uCode init instr len %zd too large to fit in\n",
1193 get_sec_size(pieces, IWL_UCODE_INIT,
1194 IWL_UCODE_SECTION_INST));
1195 return -1;
1196 }
1197
1198 if (get_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_DATA) >
1199 cfg->max_data_size) {
1200 IWL_ERR(drv, "uCode init data len %zd too large to fit in\n",
1201 get_sec_size(pieces, IWL_UCODE_REGULAR,
1202 IWL_UCODE_SECTION_DATA));
1203 return -1;
1204 }
1205 return 0;
1206 }
1207
1208 static struct iwl_op_mode *
_iwl_op_mode_start(struct iwl_drv * drv,struct iwlwifi_opmode_table * op)1209 _iwl_op_mode_start(struct iwl_drv *drv, struct iwlwifi_opmode_table *op)
1210 {
1211 const struct iwl_op_mode_ops *ops = op->ops;
1212 struct dentry *dbgfs_dir = NULL;
1213 struct iwl_op_mode *op_mode = NULL;
1214
1215 #ifdef CONFIG_IWLWIFI_DEBUGFS
1216 drv->dbgfs_op_mode = debugfs_create_dir(op->name,
1217 drv->dbgfs_drv);
1218 if (!drv->dbgfs_op_mode) {
1219 IWL_ERR(drv,
1220 "failed to create opmode debugfs directory\n");
1221 return op_mode;
1222 }
1223 dbgfs_dir = drv->dbgfs_op_mode;
1224 #endif
1225
1226 op_mode = ops->start(drv->trans, drv->trans->cfg, &drv->fw, dbgfs_dir);
1227
1228 #ifdef CONFIG_IWLWIFI_DEBUGFS
1229 if (!op_mode) {
1230 debugfs_remove_recursive(drv->dbgfs_op_mode);
1231 drv->dbgfs_op_mode = NULL;
1232 }
1233 #endif
1234
1235 return op_mode;
1236 }
1237
_iwl_op_mode_stop(struct iwl_drv * drv)1238 static void _iwl_op_mode_stop(struct iwl_drv *drv)
1239 {
1240 /* op_mode can be NULL if its start failed */
1241 if (drv->op_mode) {
1242 iwl_op_mode_stop(drv->op_mode);
1243 drv->op_mode = NULL;
1244
1245 #ifdef CONFIG_IWLWIFI_DEBUGFS
1246 debugfs_remove_recursive(drv->dbgfs_op_mode);
1247 drv->dbgfs_op_mode = NULL;
1248 #endif
1249 }
1250 }
1251
1252 /**
1253 * iwl_req_fw_callback - callback when firmware was loaded
1254 *
1255 * If loaded successfully, copies the firmware into buffers
1256 * for the card to fetch (via DMA).
1257 */
iwl_req_fw_callback(const struct firmware * ucode_raw,void * context)1258 static void iwl_req_fw_callback(const struct firmware *ucode_raw, void *context)
1259 {
1260 struct iwl_drv *drv = context;
1261 struct iwl_fw *fw = &drv->fw;
1262 struct iwl_ucode_header *ucode;
1263 struct iwlwifi_opmode_table *op;
1264 int err;
1265 struct iwl_firmware_pieces *pieces;
1266 const unsigned int api_max = drv->trans->cfg->ucode_api_max;
1267 const unsigned int api_min = drv->trans->cfg->ucode_api_min;
1268 size_t trigger_tlv_sz[FW_DBG_TRIGGER_MAX];
1269 u32 api_ver;
1270 int i;
1271 bool load_module = false;
1272 bool usniffer_images = false;
1273
1274 fw->ucode_capa.max_probe_length = IWL_DEFAULT_MAX_PROBE_LENGTH;
1275 fw->ucode_capa.standard_phy_calibration_size =
1276 IWL_DEFAULT_STANDARD_PHY_CALIBRATE_TBL_SIZE;
1277 fw->ucode_capa.n_scan_channels = IWL_DEFAULT_SCAN_CHANNELS;
1278 /* dump all fw memory areas by default */
1279 fw->dbg_dump_mask = 0xffffffff;
1280
1281 pieces = kzalloc(sizeof(*pieces), GFP_KERNEL);
1282 if (!pieces)
1283 goto out_free_fw;
1284
1285 if (!ucode_raw)
1286 goto try_again;
1287
1288 IWL_DEBUG_INFO(drv, "Loaded firmware file '%s' (%zd bytes).\n",
1289 drv->firmware_name, ucode_raw->size);
1290
1291 /* Make sure that we got at least the API version number */
1292 if (ucode_raw->size < 4) {
1293 IWL_ERR(drv, "File size way too small!\n");
1294 goto try_again;
1295 }
1296
1297 /* Data from ucode file: header followed by uCode images */
1298 ucode = (struct iwl_ucode_header *)ucode_raw->data;
1299
1300 if (ucode->ver)
1301 err = iwl_parse_v1_v2_firmware(drv, ucode_raw, pieces);
1302 else
1303 err = iwl_parse_tlv_firmware(drv, ucode_raw, pieces,
1304 &fw->ucode_capa, &usniffer_images);
1305
1306 if (err)
1307 goto try_again;
1308
1309 if (fw_has_api(&drv->fw.ucode_capa, IWL_UCODE_TLV_API_NEW_VERSION))
1310 api_ver = drv->fw.ucode_ver;
1311 else
1312 api_ver = IWL_UCODE_API(drv->fw.ucode_ver);
1313
1314 /*
1315 * api_ver should match the api version forming part of the
1316 * firmware filename ... but we don't check for that and only rely
1317 * on the API version read from firmware header from here on forward
1318 */
1319 if (api_ver < api_min || api_ver > api_max) {
1320 IWL_ERR(drv,
1321 "Driver unable to support your firmware API. "
1322 "Driver supports v%u, firmware is v%u.\n",
1323 api_max, api_ver);
1324 goto try_again;
1325 }
1326
1327 /*
1328 * In mvm uCode there is no difference between data and instructions
1329 * sections.
1330 */
1331 if (fw->type == IWL_FW_DVM && validate_sec_sizes(drv, pieces,
1332 drv->trans->cfg))
1333 goto try_again;
1334
1335 /* Allocate ucode buffers for card's bus-master loading ... */
1336
1337 /* Runtime instructions and 2 copies of data:
1338 * 1) unmodified from disk
1339 * 2) backup cache for save/restore during power-downs
1340 */
1341 for (i = 0; i < IWL_UCODE_TYPE_MAX; i++)
1342 if (iwl_alloc_ucode(drv, pieces, i))
1343 goto out_free_fw;
1344
1345 if (pieces->dbg_dest_tlv_init) {
1346 size_t dbg_dest_size = sizeof(*drv->fw.dbg_dest_tlv) +
1347 sizeof(drv->fw.dbg_dest_tlv->reg_ops[0]) *
1348 drv->fw.dbg_dest_reg_num;
1349
1350 drv->fw.dbg_dest_tlv = kmalloc(dbg_dest_size, GFP_KERNEL);
1351
1352 if (!drv->fw.dbg_dest_tlv)
1353 goto out_free_fw;
1354
1355 if (*pieces->dbg_dest_ver == 0) {
1356 memcpy(drv->fw.dbg_dest_tlv, pieces->dbg_dest_tlv_v1,
1357 dbg_dest_size);
1358 } else {
1359 struct iwl_fw_dbg_dest_tlv_v1 *dest_tlv =
1360 drv->fw.dbg_dest_tlv;
1361
1362 dest_tlv->version = pieces->dbg_dest_tlv->version;
1363 dest_tlv->monitor_mode =
1364 pieces->dbg_dest_tlv->monitor_mode;
1365 dest_tlv->size_power =
1366 pieces->dbg_dest_tlv->size_power;
1367 dest_tlv->wrap_count =
1368 pieces->dbg_dest_tlv->wrap_count;
1369 dest_tlv->write_ptr_reg =
1370 pieces->dbg_dest_tlv->write_ptr_reg;
1371 dest_tlv->base_shift =
1372 pieces->dbg_dest_tlv->base_shift;
1373 memcpy(dest_tlv->reg_ops,
1374 pieces->dbg_dest_tlv->reg_ops,
1375 sizeof(drv->fw.dbg_dest_tlv->reg_ops[0]) *
1376 drv->fw.dbg_dest_reg_num);
1377
1378 /* In version 1 of the destination tlv, which is
1379 * relevant for internal buffer exclusively,
1380 * the base address is part of given with the length
1381 * of the buffer, and the size shift is give instead of
1382 * end shift. We now store these values in base_reg,
1383 * and end shift, and when dumping the data we'll
1384 * manipulate it for extracting both the length and
1385 * base address */
1386 dest_tlv->base_reg = pieces->dbg_dest_tlv->cfg_reg;
1387 dest_tlv->end_shift =
1388 pieces->dbg_dest_tlv->size_shift;
1389 }
1390 }
1391
1392 for (i = 0; i < ARRAY_SIZE(drv->fw.dbg_conf_tlv); i++) {
1393 if (pieces->dbg_conf_tlv[i]) {
1394 drv->fw.dbg_conf_tlv_len[i] =
1395 pieces->dbg_conf_tlv_len[i];
1396 drv->fw.dbg_conf_tlv[i] =
1397 kmemdup(pieces->dbg_conf_tlv[i],
1398 drv->fw.dbg_conf_tlv_len[i],
1399 GFP_KERNEL);
1400 if (!drv->fw.dbg_conf_tlv[i])
1401 goto out_free_fw;
1402 }
1403 }
1404
1405 memset(&trigger_tlv_sz, 0xff, sizeof(trigger_tlv_sz));
1406
1407 trigger_tlv_sz[FW_DBG_TRIGGER_MISSED_BEACONS] =
1408 sizeof(struct iwl_fw_dbg_trigger_missed_bcon);
1409 trigger_tlv_sz[FW_DBG_TRIGGER_CHANNEL_SWITCH] = 0;
1410 trigger_tlv_sz[FW_DBG_TRIGGER_FW_NOTIF] =
1411 sizeof(struct iwl_fw_dbg_trigger_cmd);
1412 trigger_tlv_sz[FW_DBG_TRIGGER_MLME] =
1413 sizeof(struct iwl_fw_dbg_trigger_mlme);
1414 trigger_tlv_sz[FW_DBG_TRIGGER_STATS] =
1415 sizeof(struct iwl_fw_dbg_trigger_stats);
1416 trigger_tlv_sz[FW_DBG_TRIGGER_RSSI] =
1417 sizeof(struct iwl_fw_dbg_trigger_low_rssi);
1418 trigger_tlv_sz[FW_DBG_TRIGGER_TXQ_TIMERS] =
1419 sizeof(struct iwl_fw_dbg_trigger_txq_timer);
1420 trigger_tlv_sz[FW_DBG_TRIGGER_TIME_EVENT] =
1421 sizeof(struct iwl_fw_dbg_trigger_time_event);
1422 trigger_tlv_sz[FW_DBG_TRIGGER_BA] =
1423 sizeof(struct iwl_fw_dbg_trigger_ba);
1424 trigger_tlv_sz[FW_DBG_TRIGGER_TDLS] =
1425 sizeof(struct iwl_fw_dbg_trigger_tdls);
1426
1427 for (i = 0; i < ARRAY_SIZE(drv->fw.dbg_trigger_tlv); i++) {
1428 if (pieces->dbg_trigger_tlv[i]) {
1429 /*
1430 * If the trigger isn't long enough, WARN and exit.
1431 * Someone is trying to debug something and he won't
1432 * be able to catch the bug he is trying to chase.
1433 * We'd better be noisy to be sure he knows what's
1434 * going on.
1435 */
1436 if (WARN_ON(pieces->dbg_trigger_tlv_len[i] <
1437 (trigger_tlv_sz[i] +
1438 sizeof(struct iwl_fw_dbg_trigger_tlv))))
1439 goto out_free_fw;
1440 drv->fw.dbg_trigger_tlv_len[i] =
1441 pieces->dbg_trigger_tlv_len[i];
1442 drv->fw.dbg_trigger_tlv[i] =
1443 kmemdup(pieces->dbg_trigger_tlv[i],
1444 drv->fw.dbg_trigger_tlv_len[i],
1445 GFP_KERNEL);
1446 if (!drv->fw.dbg_trigger_tlv[i])
1447 goto out_free_fw;
1448 }
1449 }
1450
1451 /* Now that we can no longer fail, copy information */
1452
1453 drv->fw.dbg_mem_tlv = pieces->dbg_mem_tlv;
1454 pieces->dbg_mem_tlv = NULL;
1455 drv->fw.n_dbg_mem_tlv = pieces->n_dbg_mem_tlv;
1456
1457 /*
1458 * The (size - 16) / 12 formula is based on the information recorded
1459 * for each event, which is of mode 1 (including timestamp) for all
1460 * new microcodes that include this information.
1461 */
1462 fw->init_evtlog_ptr = pieces->init_evtlog_ptr;
1463 if (pieces->init_evtlog_size)
1464 fw->init_evtlog_size = (pieces->init_evtlog_size - 16)/12;
1465 else
1466 fw->init_evtlog_size =
1467 drv->trans->cfg->base_params->max_event_log_size;
1468 fw->init_errlog_ptr = pieces->init_errlog_ptr;
1469 fw->inst_evtlog_ptr = pieces->inst_evtlog_ptr;
1470 if (pieces->inst_evtlog_size)
1471 fw->inst_evtlog_size = (pieces->inst_evtlog_size - 16)/12;
1472 else
1473 fw->inst_evtlog_size =
1474 drv->trans->cfg->base_params->max_event_log_size;
1475 fw->inst_errlog_ptr = pieces->inst_errlog_ptr;
1476
1477 /*
1478 * figure out the offset of chain noise reset and gain commands
1479 * base on the size of standard phy calibration commands table size
1480 */
1481 if (fw->ucode_capa.standard_phy_calibration_size >
1482 IWL_MAX_PHY_CALIBRATE_TBL_SIZE)
1483 fw->ucode_capa.standard_phy_calibration_size =
1484 IWL_MAX_STANDARD_PHY_CALIBRATE_TBL_SIZE;
1485
1486 /* We have our copies now, allow OS release its copies */
1487 release_firmware(ucode_raw);
1488
1489 mutex_lock(&iwlwifi_opmode_table_mtx);
1490 switch (fw->type) {
1491 case IWL_FW_DVM:
1492 op = &iwlwifi_opmode_table[DVM_OP_MODE];
1493 break;
1494 default:
1495 WARN(1, "Invalid fw type %d\n", fw->type);
1496 case IWL_FW_MVM:
1497 op = &iwlwifi_opmode_table[MVM_OP_MODE];
1498 break;
1499 }
1500
1501 IWL_INFO(drv, "loaded firmware version %s op_mode %s\n",
1502 drv->fw.fw_version, op->name);
1503
1504 /* add this device to the list of devices using this op_mode */
1505 list_add_tail(&drv->list, &op->drv);
1506
1507 if (op->ops) {
1508 drv->op_mode = _iwl_op_mode_start(drv, op);
1509
1510 if (!drv->op_mode) {
1511 mutex_unlock(&iwlwifi_opmode_table_mtx);
1512 goto out_unbind;
1513 }
1514 } else {
1515 load_module = true;
1516 }
1517 mutex_unlock(&iwlwifi_opmode_table_mtx);
1518
1519 /*
1520 * Complete the firmware request last so that
1521 * a driver unbind (stop) doesn't run while we
1522 * are doing the start() above.
1523 */
1524 complete(&drv->request_firmware_complete);
1525
1526 /*
1527 * Load the module last so we don't block anything
1528 * else from proceeding if the module fails to load
1529 * or hangs loading.
1530 */
1531 if (load_module) {
1532 request_module("%s", op->name);
1533 #ifdef CONFIG_IWLWIFI_OPMODE_MODULAR
1534 if (err)
1535 IWL_ERR(drv,
1536 "failed to load module %s (error %d), is dynamic loading enabled?\n",
1537 op->name, err);
1538 #endif
1539 }
1540 goto free;
1541
1542 try_again:
1543 /* try next, if any */
1544 release_firmware(ucode_raw);
1545 if (iwl_request_firmware(drv, false))
1546 goto out_unbind;
1547 goto free;
1548
1549 out_free_fw:
1550 iwl_dealloc_ucode(drv);
1551 release_firmware(ucode_raw);
1552 out_unbind:
1553 complete(&drv->request_firmware_complete);
1554 device_release_driver(drv->trans->dev);
1555 free:
1556 if (pieces) {
1557 for (i = 0; i < ARRAY_SIZE(pieces->img); i++)
1558 kfree(pieces->img[i].sec);
1559 kfree(pieces->dbg_mem_tlv);
1560 kfree(pieces);
1561 }
1562 }
1563
iwl_drv_start(struct iwl_trans * trans)1564 struct iwl_drv *iwl_drv_start(struct iwl_trans *trans)
1565 {
1566 struct iwl_drv *drv;
1567 int ret;
1568
1569 drv = kzalloc(sizeof(*drv), GFP_KERNEL);
1570 if (!drv) {
1571 ret = -ENOMEM;
1572 goto err;
1573 }
1574
1575 drv->trans = trans;
1576 drv->dev = trans->dev;
1577
1578 init_completion(&drv->request_firmware_complete);
1579 INIT_LIST_HEAD(&drv->list);
1580
1581 #ifdef CONFIG_IWLWIFI_DEBUGFS
1582 /* Create the device debugfs entries. */
1583 drv->dbgfs_drv = debugfs_create_dir(dev_name(trans->dev),
1584 iwl_dbgfs_root);
1585
1586 if (!drv->dbgfs_drv) {
1587 IWL_ERR(drv, "failed to create debugfs directory\n");
1588 ret = -ENOMEM;
1589 goto err_free_drv;
1590 }
1591
1592 /* Create transport layer debugfs dir */
1593 drv->trans->dbgfs_dir = debugfs_create_dir("trans", drv->dbgfs_drv);
1594
1595 if (!drv->trans->dbgfs_dir) {
1596 IWL_ERR(drv, "failed to create transport debugfs directory\n");
1597 ret = -ENOMEM;
1598 goto err_free_dbgfs;
1599 }
1600 #endif
1601
1602 ret = iwl_request_firmware(drv, true);
1603 if (ret) {
1604 IWL_ERR(trans, "Couldn't request the fw\n");
1605 goto err_fw;
1606 }
1607
1608 return drv;
1609
1610 err_fw:
1611 #ifdef CONFIG_IWLWIFI_DEBUGFS
1612 err_free_dbgfs:
1613 debugfs_remove_recursive(drv->dbgfs_drv);
1614 err_free_drv:
1615 #endif
1616 kfree(drv);
1617 err:
1618 return ERR_PTR(ret);
1619 }
1620
iwl_drv_stop(struct iwl_drv * drv)1621 void iwl_drv_stop(struct iwl_drv *drv)
1622 {
1623 wait_for_completion(&drv->request_firmware_complete);
1624
1625 _iwl_op_mode_stop(drv);
1626
1627 iwl_dealloc_ucode(drv);
1628
1629 mutex_lock(&iwlwifi_opmode_table_mtx);
1630 /*
1631 * List is empty (this item wasn't added)
1632 * when firmware loading failed -- in that
1633 * case we can't remove it from any list.
1634 */
1635 if (!list_empty(&drv->list))
1636 list_del(&drv->list);
1637 mutex_unlock(&iwlwifi_opmode_table_mtx);
1638
1639 #ifdef CONFIG_IWLWIFI_DEBUGFS
1640 debugfs_remove_recursive(drv->dbgfs_drv);
1641 #endif
1642
1643 kfree(drv);
1644 }
1645
1646
1647 /* shared module parameters */
1648 struct iwl_mod_params iwlwifi_mod_params = {
1649 .fw_restart = true,
1650 .bt_coex_active = true,
1651 .power_level = IWL_POWER_INDEX_1,
1652 .d0i3_disable = true,
1653 .d0i3_timeout = 1000,
1654 .uapsd_disable = IWL_DISABLE_UAPSD_BSS | IWL_DISABLE_UAPSD_P2P_CLIENT,
1655 /* the rest are 0 by default */
1656 };
1657 IWL_EXPORT_SYMBOL(iwlwifi_mod_params);
1658
iwl_opmode_register(const char * name,const struct iwl_op_mode_ops * ops)1659 int iwl_opmode_register(const char *name, const struct iwl_op_mode_ops *ops)
1660 {
1661 int i;
1662 struct iwl_drv *drv;
1663 struct iwlwifi_opmode_table *op;
1664
1665 mutex_lock(&iwlwifi_opmode_table_mtx);
1666 for (i = 0; i < ARRAY_SIZE(iwlwifi_opmode_table); i++) {
1667 op = &iwlwifi_opmode_table[i];
1668 if (strcmp(op->name, name))
1669 continue;
1670 op->ops = ops;
1671 /* TODO: need to handle exceptional case */
1672 list_for_each_entry(drv, &op->drv, list)
1673 drv->op_mode = _iwl_op_mode_start(drv, op);
1674
1675 mutex_unlock(&iwlwifi_opmode_table_mtx);
1676 return 0;
1677 }
1678 mutex_unlock(&iwlwifi_opmode_table_mtx);
1679 return -EIO;
1680 }
1681 IWL_EXPORT_SYMBOL(iwl_opmode_register);
1682
iwl_opmode_deregister(const char * name)1683 void iwl_opmode_deregister(const char *name)
1684 {
1685 int i;
1686 struct iwl_drv *drv;
1687
1688 mutex_lock(&iwlwifi_opmode_table_mtx);
1689 for (i = 0; i < ARRAY_SIZE(iwlwifi_opmode_table); i++) {
1690 if (strcmp(iwlwifi_opmode_table[i].name, name))
1691 continue;
1692 iwlwifi_opmode_table[i].ops = NULL;
1693
1694 /* call the stop routine for all devices */
1695 list_for_each_entry(drv, &iwlwifi_opmode_table[i].drv, list)
1696 _iwl_op_mode_stop(drv);
1697
1698 mutex_unlock(&iwlwifi_opmode_table_mtx);
1699 return;
1700 }
1701 mutex_unlock(&iwlwifi_opmode_table_mtx);
1702 }
1703 IWL_EXPORT_SYMBOL(iwl_opmode_deregister);
1704
iwl_drv_init(void)1705 static int __init iwl_drv_init(void)
1706 {
1707 int i;
1708
1709 mutex_init(&iwlwifi_opmode_table_mtx);
1710
1711 for (i = 0; i < ARRAY_SIZE(iwlwifi_opmode_table); i++)
1712 INIT_LIST_HEAD(&iwlwifi_opmode_table[i].drv);
1713
1714 pr_info(DRV_DESCRIPTION "\n");
1715 pr_info(DRV_COPYRIGHT "\n");
1716
1717 #ifdef CONFIG_IWLWIFI_DEBUGFS
1718 /* Create the root of iwlwifi debugfs subsystem. */
1719 iwl_dbgfs_root = debugfs_create_dir(DRV_NAME, NULL);
1720
1721 if (!iwl_dbgfs_root)
1722 return -EFAULT;
1723 #endif
1724
1725 return iwl_pci_register_driver();
1726 }
1727 module_init(iwl_drv_init);
1728
iwl_drv_exit(void)1729 static void __exit iwl_drv_exit(void)
1730 {
1731 iwl_pci_unregister_driver();
1732
1733 #ifdef CONFIG_IWLWIFI_DEBUGFS
1734 debugfs_remove_recursive(iwl_dbgfs_root);
1735 #endif
1736 }
1737 module_exit(iwl_drv_exit);
1738
1739 #ifdef CONFIG_IWLWIFI_DEBUG
1740 module_param_named(debug, iwlwifi_mod_params.debug_level, uint, 0644);
1741 MODULE_PARM_DESC(debug, "debug output mask");
1742 #endif
1743
1744 module_param_named(swcrypto, iwlwifi_mod_params.swcrypto, int, 0444);
1745 MODULE_PARM_DESC(swcrypto, "using crypto in software (default 0 [hardware])");
1746 module_param_named(11n_disable, iwlwifi_mod_params.disable_11n, uint, 0444);
1747 MODULE_PARM_DESC(11n_disable,
1748 "disable 11n functionality, bitmap: 1: full, 2: disable agg TX, 4: disable agg RX, 8 enable agg TX");
1749 module_param_named(amsdu_size, iwlwifi_mod_params.amsdu_size, int, 0444);
1750 MODULE_PARM_DESC(amsdu_size,
1751 "amsdu size 0: 12K for multi Rx queue devices, 2K for 22560 devices, "
1752 "4K for other devices 1:4K 2:8K 3:12K 4: 2K (default 0)");
1753 module_param_named(fw_restart, iwlwifi_mod_params.fw_restart, bool, 0444);
1754 MODULE_PARM_DESC(fw_restart, "restart firmware in case of error (default true)");
1755
1756 module_param_named(antenna_coupling, iwlwifi_mod_params.antenna_coupling,
1757 int, 0444);
1758 MODULE_PARM_DESC(antenna_coupling,
1759 "specify antenna coupling in dB (default: 0 dB)");
1760
1761 module_param_named(nvm_file, iwlwifi_mod_params.nvm_file, charp, 0444);
1762 MODULE_PARM_DESC(nvm_file, "NVM file name");
1763
1764 module_param_named(d0i3_disable, iwlwifi_mod_params.d0i3_disable, bool, 0444);
1765 MODULE_PARM_DESC(d0i3_disable, "disable d0i3 functionality (default: Y)");
1766
1767 module_param_named(lar_disable, iwlwifi_mod_params.lar_disable, bool, 0444);
1768 MODULE_PARM_DESC(lar_disable, "disable LAR functionality (default: N)");
1769
1770 module_param_named(uapsd_disable, iwlwifi_mod_params.uapsd_disable, uint, 0644);
1771 MODULE_PARM_DESC(uapsd_disable,
1772 "disable U-APSD functionality bitmap 1: BSS 2: P2P Client (default: 3)");
1773
1774 /*
1775 * set bt_coex_active to true, uCode will do kill/defer
1776 * every time the priority line is asserted (BT is sending signals on the
1777 * priority line in the PCIx).
1778 * set bt_coex_active to false, uCode will ignore the BT activity and
1779 * perform the normal operation
1780 *
1781 * User might experience transmit issue on some platform due to WiFi/BT
1782 * co-exist problem. The possible behaviors are:
1783 * Able to scan and finding all the available AP
1784 * Not able to associate with any AP
1785 * On those platforms, WiFi communication can be restored by set
1786 * "bt_coex_active" module parameter to "false"
1787 *
1788 * default: bt_coex_active = true (BT_COEX_ENABLE)
1789 */
1790 module_param_named(bt_coex_active, iwlwifi_mod_params.bt_coex_active,
1791 bool, 0444);
1792 MODULE_PARM_DESC(bt_coex_active, "enable wifi/bt co-exist (default: enable)");
1793
1794 module_param_named(led_mode, iwlwifi_mod_params.led_mode, int, 0444);
1795 MODULE_PARM_DESC(led_mode, "0=system default, "
1796 "1=On(RF On)/Off(RF Off), 2=blinking, 3=Off (default: 0)");
1797
1798 module_param_named(power_save, iwlwifi_mod_params.power_save, bool, 0444);
1799 MODULE_PARM_DESC(power_save,
1800 "enable WiFi power management (default: disable)");
1801
1802 module_param_named(power_level, iwlwifi_mod_params.power_level, int, 0444);
1803 MODULE_PARM_DESC(power_level,
1804 "default power save level (range from 1 - 5, default: 1)");
1805
1806 module_param_named(fw_monitor, iwlwifi_mod_params.fw_monitor, bool, 0444);
1807 MODULE_PARM_DESC(fw_monitor,
1808 "firmware monitor - to debug FW (default: false - needs lots of memory)");
1809
1810 module_param_named(d0i3_timeout, iwlwifi_mod_params.d0i3_timeout, uint, 0444);
1811 MODULE_PARM_DESC(d0i3_timeout, "Timeout to D0i3 entry when idle (ms)");
1812
1813 module_param_named(disable_11ac, iwlwifi_mod_params.disable_11ac, bool, 0444);
1814 MODULE_PARM_DESC(disable_11ac, "Disable VHT capabilities (default: false)");
1815
1816 module_param_named(remove_when_gone,
1817 iwlwifi_mod_params.remove_when_gone, bool,
1818 0444);
1819 MODULE_PARM_DESC(remove_when_gone,
1820 "Remove dev from PCIe bus if it is deemed inaccessible (default: false)");
1821
1822 module_param_named(disable_11ax, iwlwifi_mod_params.disable_11ax, bool,
1823 S_IRUGO);
1824 MODULE_PARM_DESC(disable_11ax, "Disable HE capabilities (default: false)");
1825
