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gpio: rcar: Fix runtime PM imbalance on error
[linux/fpc-iii.git] / drivers / net / wireless / intel / iwlwifi / iwl-drv.c
blobff52e69c1c80a7664ace9470554a56b0c954f1b3
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 * Copyright(c) 2018 - 2019 Intel Corporation
12 *
13 * This program is free software; you can redistribute it and/or modify
14 * it under the terms of version 2 of the GNU General Public License as
15 * published by the Free Software Foundation.
16 *
17 * This program is distributed in the hope that it will be useful, but
18 * WITHOUT ANY WARRANTY; without even the implied warranty of
19 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
20 * General Public License for more details.
21 *
22 * The full GNU General Public License is included in this distribution
23 * in the file called COPYING.
24 *
25 * Contact Information:
26 * Intel Linux Wireless <linuxwifi@intel.com>
27 * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
28 *
29 * BSD LICENSE
30 *
31 * Copyright(c) 2005 - 2014 Intel Corporation. All rights reserved.
32 * Copyright(c) 2013 - 2015 Intel Mobile Communications GmbH
33 * Copyright(c) 2016 - 2017 Intel Deutschland GmbH
34 * Copyright(c) 2018 - 2019 Intel Corporation
35 * All rights reserved.
36 *
37 * Redistribution and use in source and binary forms, with or without
38 * modification, are permitted provided that the following conditions
39 * are met:
40 *
41 * * Redistributions of source code must retain the above copyright
42 * notice, this list of conditions and the following disclaimer.
43 * * Redistributions in binary form must reproduce the above copyright
44 * notice, this list of conditions and the following disclaimer in
45 * the documentation and/or other materials provided with the
46 * distribution.
47 * * Neither the name Intel Corporation nor the names of its
48 * contributors may be used to endorse or promote products derived
49 * from this software without specific prior written permission.
50 *
51 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
52 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
53 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
54 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
55 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
56 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
57 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
58 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
59 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
60 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
61 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
62 *
63 *****************************************************************************/
64 #include <linux/completion.h>
65 #include <linux/dma-mapping.h>
66 #include <linux/firmware.h>
67 #include <linux/module.h>
68 #include <linux/vmalloc.h>
69
70 #include "iwl-drv.h"
71 #include "iwl-csr.h"
72 #include "iwl-debug.h"
73 #include "iwl-trans.h"
74 #include "iwl-op-mode.h"
75 #include "iwl-agn-hw.h"
76 #include "fw/img.h"
77 #include "iwl-dbg-tlv.h"
78 #include "iwl-config.h"
79 #include "iwl-modparams.h"
80 #include "fw/api/alive.h"
81
82 /******************************************************************************
83 *
84 * module boiler plate
85 *
86 ******************************************************************************/
87
88 #define DRV_DESCRIPTION "Intel(R) Wireless WiFi driver for Linux"
89 MODULE_DESCRIPTION(DRV_DESCRIPTION);
90 MODULE_AUTHOR(DRV_COPYRIGHT " " DRV_AUTHOR);
91 MODULE_LICENSE("GPL");
92
93 #ifdef CONFIG_IWLWIFI_DEBUGFS
94 static struct dentry *iwl_dbgfs_root;
95 #endif
96
97 /**
98 * struct iwl_drv - drv common data
99 * @list: list of drv structures using this opmode
100 * @fw: the iwl_fw structure
101 * @op_mode: the running op_mode
102 * @trans: transport layer
103 * @dev: for debug prints only
104 * @fw_index: firmware revision to try loading
105 * @firmware_name: composite filename of ucode file to load
106 * @request_firmware_complete: the firmware has been obtained from user space
107 */
108 struct iwl_drv {
109 struct list_head list;
110 struct iwl_fw fw;
111
112 struct iwl_op_mode *op_mode;
113 struct iwl_trans *trans;
114 struct device *dev;
115
116 int fw_index; /* firmware we're trying to load */
117 char firmware_name[64]; /* name of firmware file to load */
118
119 struct completion request_firmware_complete;
120
121 #ifdef CONFIG_IWLWIFI_DEBUGFS
122 struct dentry *dbgfs_drv;
123 struct dentry *dbgfs_trans;
124 struct dentry *dbgfs_op_mode;
125 #endif
126 };
127
128 enum {
129 DVM_OP_MODE,
130 MVM_OP_MODE,
131 };
132
133 /* Protects the table contents, i.e. the ops pointer & drv list */
134 static struct mutex iwlwifi_opmode_table_mtx;
135 static struct iwlwifi_opmode_table {
136 const char *name; /* name: iwldvm, iwlmvm, etc */
137 const struct iwl_op_mode_ops *ops; /* pointer to op_mode ops */
138 struct list_head drv; /* list of devices using this op_mode */
139 } iwlwifi_opmode_table[] = { /* ops set when driver is initialized */
140 [DVM_OP_MODE] = { .name = "iwldvm", .ops = NULL },
141 [MVM_OP_MODE] = { .name = "iwlmvm", .ops = NULL },
142 };
143
144 #define IWL_DEFAULT_SCAN_CHANNELS 40
145
146 /*
147 * struct fw_sec: Just for the image parsing process.
148 * For the fw storage we are using struct fw_desc.
149 */
150 struct fw_sec {
151 const void *data; /* the sec data */
152 size_t size; /* section size */
153 u32 offset; /* offset of writing in the device */
154 };
155
156 static void iwl_free_fw_desc(struct iwl_drv *drv, struct fw_desc *desc)
157 {
158 vfree(desc->data);
159 desc->data = NULL;
160 desc->len = 0;
161 }
162
163 static void iwl_free_fw_img(struct iwl_drv *drv, struct fw_img *img)
164 {
165 int i;
166 for (i = 0; i < img->num_sec; i++)
167 iwl_free_fw_desc(drv, &img->sec[i]);
168 kfree(img->sec);
169 }
170
171 static void iwl_dealloc_ucode(struct iwl_drv *drv)
172 {
173 int i;
174
175 kfree(drv->fw.dbg.dest_tlv);
176 for (i = 0; i < ARRAY_SIZE(drv->fw.dbg.conf_tlv); i++)
177 kfree(drv->fw.dbg.conf_tlv[i]);
178 for (i = 0; i < ARRAY_SIZE(drv->fw.dbg.trigger_tlv); i++)
179 kfree(drv->fw.dbg.trigger_tlv[i]);
180 kfree(drv->fw.dbg.mem_tlv);
181 kfree(drv->fw.iml);
182 kfree(drv->fw.ucode_capa.cmd_versions);
183
184 for (i = 0; i < IWL_UCODE_TYPE_MAX; i++)
185 iwl_free_fw_img(drv, drv->fw.img + i);
186 }
187
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
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
218 if (drv->trans->trans_cfg->device_family == IWL_DEVICE_FAMILY_9000 &&
219 (CSR_HW_REV_STEP(drv->trans->hw_rev) != SILICON_B_STEP &&
220 CSR_HW_REV_STEP(drv->trans->hw_rev) != SILICON_C_STEP)) {
221 IWL_ERR(drv,
222 "Only HW steps B and C are currently supported (0x%0x)\n",
223 drv->trans->hw_rev);
224 return -EINVAL;
225 }
226
227 if (first) {
228 drv->fw_index = 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 < cfg->ucode_api_min) {
236 IWL_ERR(drv, "no suitable firmware found!\n");
237
238 if (cfg->ucode_api_min == cfg->ucode_api_max) {
239 IWL_ERR(drv, "%s%d is required\n", cfg->fw_name_pre,
240 cfg->ucode_api_max);
241 } else {
242 IWL_ERR(drv, "minimum version required: %s%d\n",
243 cfg->fw_name_pre, cfg->ucode_api_min);
244 IWL_ERR(drv, "maximum version supported: %s%d\n",
245 cfg->fw_name_pre, cfg->ucode_api_max);
246 }
247
248 IWL_ERR(drv,
249 "check git://git.kernel.org/pub/scm/linux/kernel/git/firmware/linux-firmware.git\n");
250 return -ENOENT;
251 }
252
253 snprintf(drv->firmware_name, sizeof(drv->firmware_name), "%s%s.ucode",
254 cfg->fw_name_pre, tag);
255
256 IWL_DEBUG_FW_INFO(drv, "attempting to load firmware '%s'\n",
257 drv->firmware_name);
258
259 return request_firmware_nowait(THIS_MODULE, 1, drv->firmware_name,
260 drv->trans->dev,
261 GFP_KERNEL, drv, iwl_req_fw_callback);
262 }
263
264 struct fw_img_parsing {
265 struct fw_sec *sec;
266 int sec_counter;
267 };
268
269 /*
270 * struct fw_sec_parsing: to extract fw section and it's offset from tlv
271 */
272 struct fw_sec_parsing {
273 __le32 offset;
274 const u8 data[];
275 } __packed;
276
277 /**
278 * struct iwl_tlv_calib_data - parse the default calib data from TLV
279 *
280 * @ucode_type: the uCode to which the following default calib relates.
281 * @calib: default calibrations.
282 */
283 struct iwl_tlv_calib_data {
284 __le32 ucode_type;
285 struct iwl_tlv_calib_ctrl calib;
286 } __packed;
287
288 struct iwl_firmware_pieces {
289 struct fw_img_parsing img[IWL_UCODE_TYPE_MAX];
290
291 u32 init_evtlog_ptr, init_evtlog_size, init_errlog_ptr;
292 u32 inst_evtlog_ptr, inst_evtlog_size, inst_errlog_ptr;
293
294 /* FW debug data parsed for driver usage */
295 bool dbg_dest_tlv_init;
296 u8 *dbg_dest_ver;
297 union {
298 struct iwl_fw_dbg_dest_tlv *dbg_dest_tlv;
299 struct iwl_fw_dbg_dest_tlv_v1 *dbg_dest_tlv_v1;
300 };
301 struct iwl_fw_dbg_conf_tlv *dbg_conf_tlv[FW_DBG_CONF_MAX];
302 size_t dbg_conf_tlv_len[FW_DBG_CONF_MAX];
303 struct iwl_fw_dbg_trigger_tlv *dbg_trigger_tlv[FW_DBG_TRIGGER_MAX];
304 size_t dbg_trigger_tlv_len[FW_DBG_TRIGGER_MAX];
305 struct iwl_fw_dbg_mem_seg_tlv *dbg_mem_tlv;
306 size_t n_mem_tlv;
307 };
308
309 /*
310 * These functions are just to extract uCode section data from the pieces
311 * structure.
312 */
313 static struct fw_sec *get_sec(struct iwl_firmware_pieces *pieces,
314 enum iwl_ucode_type type,
315 int sec)
316 {
317 return &pieces->img[type].sec[sec];
318 }
319
320 static void alloc_sec_data(struct iwl_firmware_pieces *pieces,
321 enum iwl_ucode_type type,
322 int sec)
323 {
324 struct fw_img_parsing *img = &pieces->img[type];
325 struct fw_sec *sec_memory;
326 int size = sec + 1;
327 size_t alloc_size = sizeof(*img->sec) * size;
328
329 if (img->sec && img->sec_counter >= size)
330 return;
331
332 sec_memory = krealloc(img->sec, alloc_size, GFP_KERNEL);
333 if (!sec_memory)
334 return;
335
336 img->sec = sec_memory;
337 img->sec_counter = size;
338 }
339
340 static void set_sec_data(struct iwl_firmware_pieces *pieces,
341 enum iwl_ucode_type type,
342 int sec,
343 const void *data)
344 {
345 alloc_sec_data(pieces, type, sec);
346
347 pieces->img[type].sec[sec].data = data;
348 }
349
350 static void set_sec_size(struct iwl_firmware_pieces *pieces,
351 enum iwl_ucode_type type,
352 int sec,
353 size_t size)
354 {
355 alloc_sec_data(pieces, type, sec);
356
357 pieces->img[type].sec[sec].size = size;
358 }
359
360 static size_t get_sec_size(struct iwl_firmware_pieces *pieces,
361 enum iwl_ucode_type type,
362 int sec)
363 {
364 return pieces->img[type].sec[sec].size;
365 }
366
367 static void set_sec_offset(struct iwl_firmware_pieces *pieces,
368 enum iwl_ucode_type type,
369 int sec,
370 u32 offset)
371 {
372 alloc_sec_data(pieces, type, sec);
373
374 pieces->img[type].sec[sec].offset = offset;
375 }
376
377 static int iwl_store_cscheme(struct iwl_fw *fw, const u8 *data, const u32 len)
378 {
379 int i, j;
380 struct iwl_fw_cscheme_list *l = (struct iwl_fw_cscheme_list *)data;
381 struct iwl_fw_cipher_scheme *fwcs;
382
383 if (len < sizeof(*l) ||
384 len < sizeof(l->size) + l->size * sizeof(l->cs[0]))
385 return -EINVAL;
386
387 for (i = 0, j = 0; i < IWL_UCODE_MAX_CS && i < l->size; i++) {
388 fwcs = &l->cs[j];
389
390 /* we skip schemes with zero cipher suite selector */
391 if (!fwcs->cipher)
392 continue;
393
394 fw->cs[j++] = *fwcs;
395 }
396
397 return 0;
398 }
399
400 /*
401 * Gets uCode section from tlv.
402 */
403 static int iwl_store_ucode_sec(struct iwl_firmware_pieces *pieces,
404 const void *data, enum iwl_ucode_type type,
405 int size)
406 {
407 struct fw_img_parsing *img;
408 struct fw_sec *sec;
409 struct fw_sec_parsing *sec_parse;
410 size_t alloc_size;
411
412 if (WARN_ON(!pieces || !data || type >= IWL_UCODE_TYPE_MAX))
413 return -1;
414
415 sec_parse = (struct fw_sec_parsing *)data;
416
417 img = &pieces->img[type];
418
419 alloc_size = sizeof(*img->sec) * (img->sec_counter + 1);
420 sec = krealloc(img->sec, alloc_size, GFP_KERNEL);
421 if (!sec)
422 return -ENOMEM;
423 img->sec = sec;
424
425 sec = &img->sec[img->sec_counter];
426
427 sec->offset = le32_to_cpu(sec_parse->offset);
428 sec->data = sec_parse->data;
429 sec->size = size - sizeof(sec_parse->offset);
430
431 ++img->sec_counter;
432
433 return 0;
434 }
435
436 static int iwl_set_default_calib(struct iwl_drv *drv, const u8 *data)
437 {
438 struct iwl_tlv_calib_data *def_calib =
439 (struct iwl_tlv_calib_data *)data;
440 u32 ucode_type = le32_to_cpu(def_calib->ucode_type);
441 if (ucode_type >= IWL_UCODE_TYPE_MAX) {
442 IWL_ERR(drv, "Wrong ucode_type %u for default calibration.\n",
443 ucode_type);
444 return -EINVAL;
445 }
446 drv->fw.default_calib[ucode_type].flow_trigger =
447 def_calib->calib.flow_trigger;
448 drv->fw.default_calib[ucode_type].event_trigger =
449 def_calib->calib.event_trigger;
450
451 return 0;
452 }
453
454 static void iwl_set_ucode_api_flags(struct iwl_drv *drv, const u8 *data,
455 struct iwl_ucode_capabilities *capa)
456 {
457 const struct iwl_ucode_api *ucode_api = (void *)data;
458 u32 api_index = le32_to_cpu(ucode_api->api_index);
459 u32 api_flags = le32_to_cpu(ucode_api->api_flags);
460 int i;
461
462 if (api_index >= DIV_ROUND_UP(NUM_IWL_UCODE_TLV_API, 32)) {
463 IWL_WARN(drv,
464 "api flags index %d larger than supported by driver\n",
465 api_index);
466 return;
467 }
468
469 for (i = 0; i < 32; i++) {
470 if (api_flags & BIT(i))
471 __set_bit(i + 32 * api_index, capa->_api);
472 }
473 }
474
475 static void iwl_set_ucode_capabilities(struct iwl_drv *drv, const u8 *data,
476 struct iwl_ucode_capabilities *capa)
477 {
478 const struct iwl_ucode_capa *ucode_capa = (void *)data;
479 u32 api_index = le32_to_cpu(ucode_capa->api_index);
480 u32 api_flags = le32_to_cpu(ucode_capa->api_capa);
481 int i;
482
483 if (api_index >= DIV_ROUND_UP(NUM_IWL_UCODE_TLV_CAPA, 32)) {
484 IWL_WARN(drv,
485 "capa flags index %d larger than supported by driver\n",
486 api_index);
487 return;
488 }
489
490 for (i = 0; i < 32; i++) {
491 if (api_flags & BIT(i))
492 __set_bit(i + 32 * api_index, capa->_capa);
493 }
494 }
495
496 static const char *iwl_reduced_fw_name(struct iwl_drv *drv)
497 {
498 const char *name = drv->firmware_name;
499
500 if (strncmp(name, "iwlwifi-", 8) == 0)
501 name += 8;
502
503 return name;
504 }
505
506 static int iwl_parse_v1_v2_firmware(struct iwl_drv *drv,
507 const struct firmware *ucode_raw,
508 struct iwl_firmware_pieces *pieces)
509 {
510 struct iwl_ucode_header *ucode = (void *)ucode_raw->data;
511 u32 api_ver, hdr_size, build;
512 char buildstr[25];
513 const u8 *src;
514
515 drv->fw.ucode_ver = le32_to_cpu(ucode->ver);
516 api_ver = IWL_UCODE_API(drv->fw.ucode_ver);
517
518 switch (api_ver) {
519 default:
520 hdr_size = 28;
521 if (ucode_raw->size < hdr_size) {
522 IWL_ERR(drv, "File size too small!\n");
523 return -EINVAL;
524 }
525 build = le32_to_cpu(ucode->u.v2.build);
526 set_sec_size(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_INST,
527 le32_to_cpu(ucode->u.v2.inst_size));
528 set_sec_size(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_DATA,
529 le32_to_cpu(ucode->u.v2.data_size));
530 set_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_INST,
531 le32_to_cpu(ucode->u.v2.init_size));
532 set_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_DATA,
533 le32_to_cpu(ucode->u.v2.init_data_size));
534 src = ucode->u.v2.data;
535 break;
536 case 0:
537 case 1:
538 case 2:
539 hdr_size = 24;
540 if (ucode_raw->size < hdr_size) {
541 IWL_ERR(drv, "File size too small!\n");
542 return -EINVAL;
543 }
544 build = 0;
545 set_sec_size(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_INST,
546 le32_to_cpu(ucode->u.v1.inst_size));
547 set_sec_size(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_DATA,
548 le32_to_cpu(ucode->u.v1.data_size));
549 set_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_INST,
550 le32_to_cpu(ucode->u.v1.init_size));
551 set_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_DATA,
552 le32_to_cpu(ucode->u.v1.init_data_size));
553 src = ucode->u.v1.data;
554 break;
555 }
556
557 if (build)
558 sprintf(buildstr, " build %u", build);
559 else
560 buildstr[0] = '\0';
561
562 snprintf(drv->fw.fw_version,
563 sizeof(drv->fw.fw_version),
564 "%u.%u.%u.%u%s %s",
565 IWL_UCODE_MAJOR(drv->fw.ucode_ver),
566 IWL_UCODE_MINOR(drv->fw.ucode_ver),
567 IWL_UCODE_API(drv->fw.ucode_ver),
568 IWL_UCODE_SERIAL(drv->fw.ucode_ver),
569 buildstr, iwl_reduced_fw_name(drv));
570
571 /* Verify size of file vs. image size info in file's header */
572
573 if (ucode_raw->size != hdr_size +
574 get_sec_size(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_INST) +
575 get_sec_size(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_DATA) +
576 get_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_INST) +
577 get_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_DATA)) {
578
579 IWL_ERR(drv,
580 "uCode file size %d does not match expected size\n",
581 (int)ucode_raw->size);
582 return -EINVAL;
583 }
584
585
586 set_sec_data(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_INST, src);
587 src += get_sec_size(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_INST);
588 set_sec_offset(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_INST,
589 IWLAGN_RTC_INST_LOWER_BOUND);
590 set_sec_data(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_DATA, src);
591 src += get_sec_size(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_DATA);
592 set_sec_offset(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_DATA,
593 IWLAGN_RTC_DATA_LOWER_BOUND);
594 set_sec_data(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_INST, src);
595 src += get_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_INST);
596 set_sec_offset(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_INST,
597 IWLAGN_RTC_INST_LOWER_BOUND);
598 set_sec_data(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_DATA, src);
599 src += get_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_DATA);
600 set_sec_offset(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_DATA,
601 IWLAGN_RTC_DATA_LOWER_BOUND);
602 return 0;
603 }
604
605 #define FW_ADDR_CACHE_CONTROL 0xC0000000
606
607 static int iwl_parse_tlv_firmware(struct iwl_drv *drv,
608 const struct firmware *ucode_raw,
609 struct iwl_firmware_pieces *pieces,
610 struct iwl_ucode_capabilities *capa,
611 bool *usniffer_images)
612 {
613 struct iwl_tlv_ucode_header *ucode = (void *)ucode_raw->data;
614 struct iwl_ucode_tlv *tlv;
615 size_t len = ucode_raw->size;
616 const u8 *data;
617 u32 tlv_len;
618 u32 usniffer_img;
619 enum iwl_ucode_tlv_type tlv_type;
620 const u8 *tlv_data;
621 char buildstr[25];
622 u32 build, paging_mem_size;
623 int num_of_cpus;
624 bool usniffer_req = false;
625
626 if (len < sizeof(*ucode)) {
627 IWL_ERR(drv, "uCode has invalid length: %zd\n", len);
628 return -EINVAL;
629 }
630
631 if (ucode->magic != cpu_to_le32(IWL_TLV_UCODE_MAGIC)) {
632 IWL_ERR(drv, "invalid uCode magic: 0X%x\n",
633 le32_to_cpu(ucode->magic));
634 return -EINVAL;
635 }
636
637 drv->fw.ucode_ver = le32_to_cpu(ucode->ver);
638 memcpy(drv->fw.human_readable, ucode->human_readable,
639 sizeof(drv->fw.human_readable));
640 build = le32_to_cpu(ucode->build);
641
642 if (build)
643 sprintf(buildstr, " build %u", build);
644 else
645 buildstr[0] = '\0';
646
647 snprintf(drv->fw.fw_version,
648 sizeof(drv->fw.fw_version),
649 "%u.%u.%u.%u%s %s",
650 IWL_UCODE_MAJOR(drv->fw.ucode_ver),
651 IWL_UCODE_MINOR(drv->fw.ucode_ver),
652 IWL_UCODE_API(drv->fw.ucode_ver),
653 IWL_UCODE_SERIAL(drv->fw.ucode_ver),
654 buildstr, iwl_reduced_fw_name(drv));
655
656 data = ucode->data;
657
658 len -= sizeof(*ucode);
659
660 while (len >= sizeof(*tlv)) {
661 len -= sizeof(*tlv);
662 tlv = (void *)data;
663
664 tlv_len = le32_to_cpu(tlv->length);
665 tlv_type = le32_to_cpu(tlv->type);
666 tlv_data = tlv->data;
667
668 if (len < tlv_len) {
669 IWL_ERR(drv, "invalid TLV len: %zd/%u\n",
670 len, tlv_len);
671 return -EINVAL;
672 }
673 len -= ALIGN(tlv_len, 4);
674 data += sizeof(*tlv) + ALIGN(tlv_len, 4);
675
676 switch (tlv_type) {
677 case IWL_UCODE_TLV_INST:
678 set_sec_data(pieces, IWL_UCODE_REGULAR,
679 IWL_UCODE_SECTION_INST, tlv_data);
680 set_sec_size(pieces, IWL_UCODE_REGULAR,
681 IWL_UCODE_SECTION_INST, tlv_len);
682 set_sec_offset(pieces, IWL_UCODE_REGULAR,
683 IWL_UCODE_SECTION_INST,
684 IWLAGN_RTC_INST_LOWER_BOUND);
685 break;
686 case IWL_UCODE_TLV_DATA:
687 set_sec_data(pieces, IWL_UCODE_REGULAR,
688 IWL_UCODE_SECTION_DATA, tlv_data);
689 set_sec_size(pieces, IWL_UCODE_REGULAR,
690 IWL_UCODE_SECTION_DATA, tlv_len);
691 set_sec_offset(pieces, IWL_UCODE_REGULAR,
692 IWL_UCODE_SECTION_DATA,
693 IWLAGN_RTC_DATA_LOWER_BOUND);
694 break;
695 case IWL_UCODE_TLV_INIT:
696 set_sec_data(pieces, IWL_UCODE_INIT,
697 IWL_UCODE_SECTION_INST, tlv_data);
698 set_sec_size(pieces, IWL_UCODE_INIT,
699 IWL_UCODE_SECTION_INST, tlv_len);
700 set_sec_offset(pieces, IWL_UCODE_INIT,
701 IWL_UCODE_SECTION_INST,
702 IWLAGN_RTC_INST_LOWER_BOUND);
703 break;
704 case IWL_UCODE_TLV_INIT_DATA:
705 set_sec_data(pieces, IWL_UCODE_INIT,
706 IWL_UCODE_SECTION_DATA, tlv_data);
707 set_sec_size(pieces, IWL_UCODE_INIT,
708 IWL_UCODE_SECTION_DATA, tlv_len);
709 set_sec_offset(pieces, IWL_UCODE_INIT,
710 IWL_UCODE_SECTION_DATA,
711 IWLAGN_RTC_DATA_LOWER_BOUND);
712 break;
713 case IWL_UCODE_TLV_BOOT:
714 IWL_ERR(drv, "Found unexpected BOOT ucode\n");
715 break;
716 case IWL_UCODE_TLV_PROBE_MAX_LEN:
717 if (tlv_len != sizeof(u32))
718 goto invalid_tlv_len;
719 capa->max_probe_length =
720 le32_to_cpup((__le32 *)tlv_data);
721 break;
722 case IWL_UCODE_TLV_PAN:
723 if (tlv_len)
724 goto invalid_tlv_len;
725 capa->flags |= IWL_UCODE_TLV_FLAGS_PAN;
726 break;
727 case IWL_UCODE_TLV_FLAGS:
728 /* must be at least one u32 */
729 if (tlv_len < sizeof(u32))
730 goto invalid_tlv_len;
731 /* and a proper number of u32s */
732 if (tlv_len % sizeof(u32))
733 goto invalid_tlv_len;
734 /*
735 * This driver only reads the first u32 as
736 * right now no more features are defined,
737 * if that changes then either the driver
738 * will not work with the new firmware, or
739 * it'll not take advantage of new features.
740 */
741 capa->flags = le32_to_cpup((__le32 *)tlv_data);
742 break;
743 case IWL_UCODE_TLV_API_CHANGES_SET:
744 if (tlv_len != sizeof(struct iwl_ucode_api))
745 goto invalid_tlv_len;
746 iwl_set_ucode_api_flags(drv, tlv_data, capa);
747 break;
748 case IWL_UCODE_TLV_ENABLED_CAPABILITIES:
749 if (tlv_len != sizeof(struct iwl_ucode_capa))
750 goto invalid_tlv_len;
751 iwl_set_ucode_capabilities(drv, tlv_data, capa);
752 break;
753 case IWL_UCODE_TLV_INIT_EVTLOG_PTR:
754 if (tlv_len != sizeof(u32))
755 goto invalid_tlv_len;
756 pieces->init_evtlog_ptr =
757 le32_to_cpup((__le32 *)tlv_data);
758 break;
759 case IWL_UCODE_TLV_INIT_EVTLOG_SIZE:
760 if (tlv_len != sizeof(u32))
761 goto invalid_tlv_len;
762 pieces->init_evtlog_size =
763 le32_to_cpup((__le32 *)tlv_data);
764 break;
765 case IWL_UCODE_TLV_INIT_ERRLOG_PTR:
766 if (tlv_len != sizeof(u32))
767 goto invalid_tlv_len;
768 pieces->init_errlog_ptr =
769 le32_to_cpup((__le32 *)tlv_data);
770 break;
771 case IWL_UCODE_TLV_RUNT_EVTLOG_PTR:
772 if (tlv_len != sizeof(u32))
773 goto invalid_tlv_len;
774 pieces->inst_evtlog_ptr =
775 le32_to_cpup((__le32 *)tlv_data);
776 break;
777 case IWL_UCODE_TLV_RUNT_EVTLOG_SIZE:
778 if (tlv_len != sizeof(u32))
779 goto invalid_tlv_len;
780 pieces->inst_evtlog_size =
781 le32_to_cpup((__le32 *)tlv_data);
782 break;
783 case IWL_UCODE_TLV_RUNT_ERRLOG_PTR:
784 if (tlv_len != sizeof(u32))
785 goto invalid_tlv_len;
786 pieces->inst_errlog_ptr =
787 le32_to_cpup((__le32 *)tlv_data);
788 break;
789 case IWL_UCODE_TLV_ENHANCE_SENS_TBL:
790 if (tlv_len)
791 goto invalid_tlv_len;
792 drv->fw.enhance_sensitivity_table = true;
793 break;
794 case IWL_UCODE_TLV_WOWLAN_INST:
795 set_sec_data(pieces, IWL_UCODE_WOWLAN,
796 IWL_UCODE_SECTION_INST, tlv_data);
797 set_sec_size(pieces, IWL_UCODE_WOWLAN,
798 IWL_UCODE_SECTION_INST, tlv_len);
799 set_sec_offset(pieces, IWL_UCODE_WOWLAN,
800 IWL_UCODE_SECTION_INST,
801 IWLAGN_RTC_INST_LOWER_BOUND);
802 break;
803 case IWL_UCODE_TLV_WOWLAN_DATA:
804 set_sec_data(pieces, IWL_UCODE_WOWLAN,
805 IWL_UCODE_SECTION_DATA, tlv_data);
806 set_sec_size(pieces, IWL_UCODE_WOWLAN,
807 IWL_UCODE_SECTION_DATA, tlv_len);
808 set_sec_offset(pieces, IWL_UCODE_WOWLAN,
809 IWL_UCODE_SECTION_DATA,
810 IWLAGN_RTC_DATA_LOWER_BOUND);
811 break;
812 case IWL_UCODE_TLV_PHY_CALIBRATION_SIZE:
813 if (tlv_len != sizeof(u32))
814 goto invalid_tlv_len;
815 capa->standard_phy_calibration_size =
816 le32_to_cpup((__le32 *)tlv_data);
817 break;
818 case IWL_UCODE_TLV_SEC_RT:
819 iwl_store_ucode_sec(pieces, tlv_data, IWL_UCODE_REGULAR,
820 tlv_len);
821 drv->fw.type = IWL_FW_MVM;
822 break;
823 case IWL_UCODE_TLV_SEC_INIT:
824 iwl_store_ucode_sec(pieces, tlv_data, IWL_UCODE_INIT,
825 tlv_len);
826 drv->fw.type = IWL_FW_MVM;
827 break;
828 case IWL_UCODE_TLV_SEC_WOWLAN:
829 iwl_store_ucode_sec(pieces, tlv_data, IWL_UCODE_WOWLAN,
830 tlv_len);
831 drv->fw.type = IWL_FW_MVM;
832 break;
833 case IWL_UCODE_TLV_DEF_CALIB:
834 if (tlv_len != sizeof(struct iwl_tlv_calib_data))
835 goto invalid_tlv_len;
836 if (iwl_set_default_calib(drv, tlv_data))
837 goto tlv_error;
838 break;
839 case IWL_UCODE_TLV_PHY_SKU:
840 if (tlv_len != sizeof(u32))
841 goto invalid_tlv_len;
842 drv->fw.phy_config = le32_to_cpup((__le32 *)tlv_data);
843 drv->fw.valid_tx_ant = (drv->fw.phy_config &
844 FW_PHY_CFG_TX_CHAIN) >>
845 FW_PHY_CFG_TX_CHAIN_POS;
846 drv->fw.valid_rx_ant = (drv->fw.phy_config &
847 FW_PHY_CFG_RX_CHAIN) >>
848 FW_PHY_CFG_RX_CHAIN_POS;
849 break;
850 case IWL_UCODE_TLV_SECURE_SEC_RT:
851 iwl_store_ucode_sec(pieces, tlv_data, IWL_UCODE_REGULAR,
852 tlv_len);
853 drv->fw.type = IWL_FW_MVM;
854 break;
855 case IWL_UCODE_TLV_SECURE_SEC_INIT:
856 iwl_store_ucode_sec(pieces, tlv_data, IWL_UCODE_INIT,
857 tlv_len);
858 drv->fw.type = IWL_FW_MVM;
859 break;
860 case IWL_UCODE_TLV_SECURE_SEC_WOWLAN:
861 iwl_store_ucode_sec(pieces, tlv_data, IWL_UCODE_WOWLAN,
862 tlv_len);
863 drv->fw.type = IWL_FW_MVM;
864 break;
865 case IWL_UCODE_TLV_NUM_OF_CPU:
866 if (tlv_len != sizeof(u32))
867 goto invalid_tlv_len;
868 num_of_cpus =
869 le32_to_cpup((__le32 *)tlv_data);
870
871 if (num_of_cpus == 2) {
872 drv->fw.img[IWL_UCODE_REGULAR].is_dual_cpus =
873 true;
874 drv->fw.img[IWL_UCODE_INIT].is_dual_cpus =
875 true;
876 drv->fw.img[IWL_UCODE_WOWLAN].is_dual_cpus =
877 true;
878 } else if ((num_of_cpus > 2) || (num_of_cpus < 1)) {
879 IWL_ERR(drv, "Driver support upto 2 CPUs\n");
880 return -EINVAL;
881 }
882 break;
883 case IWL_UCODE_TLV_CSCHEME:
884 if (iwl_store_cscheme(&drv->fw, tlv_data, tlv_len))
885 goto invalid_tlv_len;
886 break;
887 case IWL_UCODE_TLV_N_SCAN_CHANNELS:
888 if (tlv_len != sizeof(u32))
889 goto invalid_tlv_len;
890 capa->n_scan_channels =
891 le32_to_cpup((__le32 *)tlv_data);
892 break;
893 case IWL_UCODE_TLV_FW_VERSION: {
894 __le32 *ptr = (void *)tlv_data;
895 u32 major, minor;
896 u8 local_comp;
897
898 if (tlv_len != sizeof(u32) * 3)
899 goto invalid_tlv_len;
900
901 major = le32_to_cpup(ptr++);
902 minor = le32_to_cpup(ptr++);
903 local_comp = le32_to_cpup(ptr);
904
905 if (major >= 35)
906 snprintf(drv->fw.fw_version,
907 sizeof(drv->fw.fw_version),
908 "%u.%08x.%u %s", major, minor,
909 local_comp, iwl_reduced_fw_name(drv));
910 else
911 snprintf(drv->fw.fw_version,
912 sizeof(drv->fw.fw_version),
913 "%u.%u.%u %s", major, minor,
914 local_comp, iwl_reduced_fw_name(drv));
915 break;
916 }
917 case IWL_UCODE_TLV_FW_DBG_DEST: {
918 struct iwl_fw_dbg_dest_tlv *dest = NULL;
919 struct iwl_fw_dbg_dest_tlv_v1 *dest_v1 = NULL;
920 u8 mon_mode;
921
922 pieces->dbg_dest_ver = (u8 *)tlv_data;
923 if (*pieces->dbg_dest_ver == 1) {
924 dest = (void *)tlv_data;
925 } else if (*pieces->dbg_dest_ver == 0) {
926 dest_v1 = (void *)tlv_data;
927 } else {
928 IWL_ERR(drv,
929 "The version is %d, and it is invalid\n",
930 *pieces->dbg_dest_ver);
931 break;
932 }
933
934 if (pieces->dbg_dest_tlv_init) {
935 IWL_ERR(drv,
936 "dbg destination ignored, already exists\n");
937 break;
938 }
939
940 pieces->dbg_dest_tlv_init = true;
941
942 if (dest_v1) {
943 pieces->dbg_dest_tlv_v1 = dest_v1;
944 mon_mode = dest_v1->monitor_mode;
945 } else {
946 pieces->dbg_dest_tlv = dest;
947 mon_mode = dest->monitor_mode;
948 }
949
950 IWL_INFO(drv, "Found debug destination: %s\n",
951 get_fw_dbg_mode_string(mon_mode));
952
953 drv->fw.dbg.n_dest_reg = (dest_v1) ?
954 tlv_len -
955 offsetof(struct iwl_fw_dbg_dest_tlv_v1,
956 reg_ops) :
957 tlv_len -
958 offsetof(struct iwl_fw_dbg_dest_tlv,
959 reg_ops);
960
961 drv->fw.dbg.n_dest_reg /=
962 sizeof(drv->fw.dbg.dest_tlv->reg_ops[0]);
963
964 break;
965 }
966 case IWL_UCODE_TLV_FW_DBG_CONF: {
967 struct iwl_fw_dbg_conf_tlv *conf = (void *)tlv_data;
968
969 if (!pieces->dbg_dest_tlv_init) {
970 IWL_ERR(drv,
971 "Ignore dbg config %d - no destination configured\n",
972 conf->id);
973 break;
974 }
975
976 if (conf->id >= ARRAY_SIZE(drv->fw.dbg.conf_tlv)) {
977 IWL_ERR(drv,
978 "Skip unknown configuration: %d\n",
979 conf->id);
980 break;
981 }
982
983 if (pieces->dbg_conf_tlv[conf->id]) {
984 IWL_ERR(drv,
985 "Ignore duplicate dbg config %d\n",
986 conf->id);
987 break;
988 }
989
990 if (conf->usniffer)
991 usniffer_req = true;
992
993 IWL_INFO(drv, "Found debug configuration: %d\n",
994 conf->id);
995
996 pieces->dbg_conf_tlv[conf->id] = conf;
997 pieces->dbg_conf_tlv_len[conf->id] = tlv_len;
998 break;
999 }
1000 case IWL_UCODE_TLV_FW_DBG_TRIGGER: {
1001 struct iwl_fw_dbg_trigger_tlv *trigger =
1002 (void *)tlv_data;
1003 u32 trigger_id = le32_to_cpu(trigger->id);
1004
1005 if (trigger_id >= ARRAY_SIZE(drv->fw.dbg.trigger_tlv)) {
1006 IWL_ERR(drv,
1007 "Skip unknown trigger: %u\n",
1008 trigger->id);
1009 break;
1010 }
1011
1012 if (pieces->dbg_trigger_tlv[trigger_id]) {
1013 IWL_ERR(drv,
1014 "Ignore duplicate dbg trigger %u\n",
1015 trigger->id);
1016 break;
1017 }
1018
1019 IWL_INFO(drv, "Found debug trigger: %u\n", trigger->id);
1020
1021 pieces->dbg_trigger_tlv[trigger_id] = trigger;
1022 pieces->dbg_trigger_tlv_len[trigger_id] = tlv_len;
1023 break;
1024 }
1025 case IWL_UCODE_TLV_FW_DBG_DUMP_LST: {
1026 if (tlv_len != sizeof(u32)) {
1027 IWL_ERR(drv,
1028 "dbg lst mask size incorrect, skip\n");
1029 break;
1030 }
1031
1032 drv->fw.dbg.dump_mask =
1033 le32_to_cpup((__le32 *)tlv_data);
1034 break;
1035 }
1036 case IWL_UCODE_TLV_SEC_RT_USNIFFER:
1037 *usniffer_images = true;
1038 iwl_store_ucode_sec(pieces, tlv_data,
1039 IWL_UCODE_REGULAR_USNIFFER,
1040 tlv_len);
1041 break;
1042 case IWL_UCODE_TLV_PAGING:
1043 if (tlv_len != sizeof(u32))
1044 goto invalid_tlv_len;
1045 paging_mem_size = le32_to_cpup((__le32 *)tlv_data);
1046
1047 IWL_DEBUG_FW(drv,
1048 "Paging: paging enabled (size = %u bytes)\n",
1049 paging_mem_size);
1050
1051 if (paging_mem_size > MAX_PAGING_IMAGE_SIZE) {
1052 IWL_ERR(drv,
1053 "Paging: driver supports up to %lu bytes for paging image\n",
1054 MAX_PAGING_IMAGE_SIZE);
1055 return -EINVAL;
1056 }
1057
1058 if (paging_mem_size & (FW_PAGING_SIZE - 1)) {
1059 IWL_ERR(drv,
1060 "Paging: image isn't multiple %lu\n",
1061 FW_PAGING_SIZE);
1062 return -EINVAL;
1063 }
1064
1065 drv->fw.img[IWL_UCODE_REGULAR].paging_mem_size =
1066 paging_mem_size;
1067 usniffer_img = IWL_UCODE_REGULAR_USNIFFER;
1068 drv->fw.img[usniffer_img].paging_mem_size =
1069 paging_mem_size;
1070 break;
1071 case IWL_UCODE_TLV_FW_GSCAN_CAPA:
1072 /* ignored */
1073 break;
1074 case IWL_UCODE_TLV_FW_MEM_SEG: {
1075 struct iwl_fw_dbg_mem_seg_tlv *dbg_mem =
1076 (void *)tlv_data;
1077 size_t size;
1078 struct iwl_fw_dbg_mem_seg_tlv *n;
1079
1080 if (tlv_len != (sizeof(*dbg_mem)))
1081 goto invalid_tlv_len;
1082
1083 IWL_DEBUG_INFO(drv, "Found debug memory segment: %u\n",
1084 dbg_mem->data_type);
1085
1086 size = sizeof(*pieces->dbg_mem_tlv) *
1087 (pieces->n_mem_tlv + 1);
1088 n = krealloc(pieces->dbg_mem_tlv, size, GFP_KERNEL);
1089 if (!n)
1090 return -ENOMEM;
1091 pieces->dbg_mem_tlv = n;
1092 pieces->dbg_mem_tlv[pieces->n_mem_tlv] = *dbg_mem;
1093 pieces->n_mem_tlv++;
1094 break;
1095 }
1096 case IWL_UCODE_TLV_IML: {
1097 drv->fw.iml_len = tlv_len;
1098 drv->fw.iml = kmemdup(tlv_data, tlv_len, GFP_KERNEL);
1099 if (!drv->fw.iml)
1100 return -ENOMEM;
1101 break;
1102 }
1103 case IWL_UCODE_TLV_FW_RECOVERY_INFO: {
1104 struct {
1105 __le32 buf_addr;
1106 __le32 buf_size;
1107 } *recov_info = (void *)tlv_data;
1108
1109 if (tlv_len != sizeof(*recov_info))
1110 goto invalid_tlv_len;
1111 capa->error_log_addr =
1112 le32_to_cpu(recov_info->buf_addr);
1113 capa->error_log_size =
1114 le32_to_cpu(recov_info->buf_size);
1115 }
1116 break;
1117 case IWL_UCODE_TLV_FW_FSEQ_VERSION: {
1118 struct {
1119 u8 version[32];
1120 u8 sha1[20];
1121 } *fseq_ver = (void *)tlv_data;
1122
1123 if (tlv_len != sizeof(*fseq_ver))
1124 goto invalid_tlv_len;
1125 IWL_INFO(drv, "TLV_FW_FSEQ_VERSION: %s\n",
1126 fseq_ver->version);
1127 }
1128 break;
1129 case IWL_UCODE_TLV_UMAC_DEBUG_ADDRS: {
1130 struct iwl_umac_debug_addrs *dbg_ptrs =
1131 (void *)tlv_data;
1132
1133 if (tlv_len != sizeof(*dbg_ptrs))
1134 goto invalid_tlv_len;
1135 if (drv->trans->trans_cfg->device_family <
1136 IWL_DEVICE_FAMILY_22000)
1137 break;
1138 drv->trans->dbg.umac_error_event_table =
1139 le32_to_cpu(dbg_ptrs->error_info_addr) &
1140 ~FW_ADDR_CACHE_CONTROL;
1141 drv->trans->dbg.error_event_table_tlv_status |=
1142 IWL_ERROR_EVENT_TABLE_UMAC;
1143 break;
1144 }
1145 case IWL_UCODE_TLV_LMAC_DEBUG_ADDRS: {
1146 struct iwl_lmac_debug_addrs *dbg_ptrs =
1147 (void *)tlv_data;
1148
1149 if (tlv_len != sizeof(*dbg_ptrs))
1150 goto invalid_tlv_len;
1151 if (drv->trans->trans_cfg->device_family <
1152 IWL_DEVICE_FAMILY_22000)
1153 break;
1154 drv->trans->dbg.lmac_error_event_table[0] =
1155 le32_to_cpu(dbg_ptrs->error_event_table_ptr) &
1156 ~FW_ADDR_CACHE_CONTROL;
1157 drv->trans->dbg.error_event_table_tlv_status |=
1158 IWL_ERROR_EVENT_TABLE_LMAC1;
1159 break;
1160 }
1161 case IWL_UCODE_TLV_TYPE_DEBUG_INFO:
1162 case IWL_UCODE_TLV_TYPE_BUFFER_ALLOCATION:
1163 case IWL_UCODE_TLV_TYPE_HCMD:
1164 case IWL_UCODE_TLV_TYPE_REGIONS:
1165 case IWL_UCODE_TLV_TYPE_TRIGGERS:
1166 if (iwlwifi_mod_params.enable_ini)
1167 iwl_dbg_tlv_alloc(drv->trans, tlv, false);
1168 break;
1169 case IWL_UCODE_TLV_CMD_VERSIONS:
1170 if (tlv_len % sizeof(struct iwl_fw_cmd_version)) {
1171 IWL_ERR(drv,
1172 "Invalid length for command versions: %u\n",
1173 tlv_len);
1174 tlv_len /= sizeof(struct iwl_fw_cmd_version);
1175 tlv_len *= sizeof(struct iwl_fw_cmd_version);
1176 }
1177 if (WARN_ON(capa->cmd_versions))
1178 return -EINVAL;
1179 capa->cmd_versions = kmemdup(tlv_data, tlv_len,
1180 GFP_KERNEL);
1181 if (!capa->cmd_versions)
1182 return -ENOMEM;
1183 capa->n_cmd_versions =
1184 tlv_len / sizeof(struct iwl_fw_cmd_version);
1185 break;
1186 default:
1187 IWL_DEBUG_INFO(drv, "unknown TLV: %d\n", tlv_type);
1188 break;
1189 }
1190 }
1191
1192 if (!fw_has_capa(capa, IWL_UCODE_TLV_CAPA_USNIFFER_UNIFIED) &&
1193 usniffer_req && !*usniffer_images) {
1194 IWL_ERR(drv,
1195 "user selected to work with usniffer but usniffer image isn't available in ucode package\n");
1196 return -EINVAL;
1197 }
1198
1199 if (len) {
1200 IWL_ERR(drv, "invalid TLV after parsing: %zd\n", len);
1201 iwl_print_hex_dump(drv, IWL_DL_FW, (u8 *)data, len);
1202 return -EINVAL;
1203 }
1204
1205 return 0;
1206
1207 invalid_tlv_len:
1208 IWL_ERR(drv, "TLV %d has invalid size: %u\n", tlv_type, tlv_len);
1209 tlv_error:
1210 iwl_print_hex_dump(drv, IWL_DL_FW, tlv_data, tlv_len);
1211
1212 return -EINVAL;
1213 }
1214
1215 static int iwl_alloc_ucode(struct iwl_drv *drv,
1216 struct iwl_firmware_pieces *pieces,
1217 enum iwl_ucode_type type)
1218 {
1219 int i;
1220 struct fw_desc *sec;
1221
1222 sec = kcalloc(pieces->img[type].sec_counter, sizeof(*sec), GFP_KERNEL);
1223 if (!sec)
1224 return -ENOMEM;
1225 drv->fw.img[type].sec = sec;
1226 drv->fw.img[type].num_sec = pieces->img[type].sec_counter;
1227
1228 for (i = 0; i < pieces->img[type].sec_counter; i++)
1229 if (iwl_alloc_fw_desc(drv, &sec[i], get_sec(pieces, type, i)))
1230 return -ENOMEM;
1231
1232 return 0;
1233 }
1234
1235 static int validate_sec_sizes(struct iwl_drv *drv,
1236 struct iwl_firmware_pieces *pieces,
1237 const struct iwl_cfg *cfg)
1238 {
1239 IWL_DEBUG_INFO(drv, "f/w package hdr runtime inst size = %zd\n",
1240 get_sec_size(pieces, IWL_UCODE_REGULAR,
1241 IWL_UCODE_SECTION_INST));
1242 IWL_DEBUG_INFO(drv, "f/w package hdr runtime data size = %zd\n",
1243 get_sec_size(pieces, IWL_UCODE_REGULAR,
1244 IWL_UCODE_SECTION_DATA));
1245 IWL_DEBUG_INFO(drv, "f/w package hdr init inst size = %zd\n",
1246 get_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_INST));
1247 IWL_DEBUG_INFO(drv, "f/w package hdr init data size = %zd\n",
1248 get_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_DATA));
1249
1250 /* Verify that uCode images will fit in card's SRAM. */
1251 if (get_sec_size(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_INST) >
1252 cfg->max_inst_size) {
1253 IWL_ERR(drv, "uCode instr len %zd too large to fit in\n",
1254 get_sec_size(pieces, IWL_UCODE_REGULAR,
1255 IWL_UCODE_SECTION_INST));
1256 return -1;
1257 }
1258
1259 if (get_sec_size(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_DATA) >
1260 cfg->max_data_size) {
1261 IWL_ERR(drv, "uCode data len %zd too large to fit in\n",
1262 get_sec_size(pieces, IWL_UCODE_REGULAR,
1263 IWL_UCODE_SECTION_DATA));
1264 return -1;
1265 }
1266
1267 if (get_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_INST) >
1268 cfg->max_inst_size) {
1269 IWL_ERR(drv, "uCode init instr len %zd too large to fit in\n",
1270 get_sec_size(pieces, IWL_UCODE_INIT,
1271 IWL_UCODE_SECTION_INST));
1272 return -1;
1273 }
1274
1275 if (get_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_DATA) >
1276 cfg->max_data_size) {
1277 IWL_ERR(drv, "uCode init data len %zd too large to fit in\n",
1278 get_sec_size(pieces, IWL_UCODE_REGULAR,
1279 IWL_UCODE_SECTION_DATA));
1280 return -1;
1281 }
1282 return 0;
1283 }
1284
1285 static struct iwl_op_mode *
1286 _iwl_op_mode_start(struct iwl_drv *drv, struct iwlwifi_opmode_table *op)
1287 {
1288 const struct iwl_op_mode_ops *ops = op->ops;
1289 struct dentry *dbgfs_dir = NULL;
1290 struct iwl_op_mode *op_mode = NULL;
1291
1292 #ifdef CONFIG_IWLWIFI_DEBUGFS
1293 drv->dbgfs_op_mode = debugfs_create_dir(op->name,
1294 drv->dbgfs_drv);
1295 dbgfs_dir = drv->dbgfs_op_mode;
1296 #endif
1297
1298 op_mode = ops->start(drv->trans, drv->trans->cfg, &drv->fw, dbgfs_dir);
1299
1300 #ifdef CONFIG_IWLWIFI_DEBUGFS
1301 if (!op_mode) {
1302 debugfs_remove_recursive(drv->dbgfs_op_mode);
1303 drv->dbgfs_op_mode = NULL;
1304 }
1305 #endif
1306
1307 return op_mode;
1308 }
1309
1310 static void _iwl_op_mode_stop(struct iwl_drv *drv)
1311 {
1312 /* op_mode can be NULL if its start failed */
1313 if (drv->op_mode) {
1314 iwl_op_mode_stop(drv->op_mode);
1315 drv->op_mode = NULL;
1316
1317 #ifdef CONFIG_IWLWIFI_DEBUGFS
1318 debugfs_remove_recursive(drv->dbgfs_op_mode);
1319 drv->dbgfs_op_mode = NULL;
1320 #endif
1321 }
1322 }
1323
1324 /**
1325 * iwl_req_fw_callback - callback when firmware was loaded
1326 *
1327 * If loaded successfully, copies the firmware into buffers
1328 * for the card to fetch (via DMA).
1329 */
1330 static void iwl_req_fw_callback(const struct firmware *ucode_raw, void *context)
1331 {
1332 struct iwl_drv *drv = context;
1333 struct iwl_fw *fw = &drv->fw;
1334 struct iwl_ucode_header *ucode;
1335 struct iwlwifi_opmode_table *op;
1336 int err;
1337 struct iwl_firmware_pieces *pieces;
1338 const unsigned int api_max = drv->trans->cfg->ucode_api_max;
1339 const unsigned int api_min = drv->trans->cfg->ucode_api_min;
1340 size_t trigger_tlv_sz[FW_DBG_TRIGGER_MAX];
1341 u32 api_ver;
1342 int i;
1343 bool load_module = false;
1344 bool usniffer_images = false;
1345
1346 fw->ucode_capa.max_probe_length = IWL_DEFAULT_MAX_PROBE_LENGTH;
1347 fw->ucode_capa.standard_phy_calibration_size =
1348 IWL_DEFAULT_STANDARD_PHY_CALIBRATE_TBL_SIZE;
1349 fw->ucode_capa.n_scan_channels = IWL_DEFAULT_SCAN_CHANNELS;
1350 /* dump all fw memory areas by default */
1351 fw->dbg.dump_mask = 0xffffffff;
1352
1353 pieces = kzalloc(sizeof(*pieces), GFP_KERNEL);
1354 if (!pieces)
1355 goto out_free_fw;
1356
1357 if (!ucode_raw)
1358 goto try_again;
1359
1360 IWL_DEBUG_FW_INFO(drv, "Loaded firmware file '%s' (%zd bytes).\n",
1361 drv->firmware_name, ucode_raw->size);
1362
1363 /* Make sure that we got at least the API version number */
1364 if (ucode_raw->size < 4) {
1365 IWL_ERR(drv, "File size way too small!\n");
1366 goto try_again;
1367 }
1368
1369 /* Data from ucode file: header followed by uCode images */
1370 ucode = (struct iwl_ucode_header *)ucode_raw->data;
1371
1372 if (ucode->ver)
1373 err = iwl_parse_v1_v2_firmware(drv, ucode_raw, pieces);
1374 else
1375 err = iwl_parse_tlv_firmware(drv, ucode_raw, pieces,
1376 &fw->ucode_capa, &usniffer_images);
1377
1378 if (err)
1379 goto try_again;
1380
1381 if (fw_has_api(&drv->fw.ucode_capa, IWL_UCODE_TLV_API_NEW_VERSION))
1382 api_ver = drv->fw.ucode_ver;
1383 else
1384 api_ver = IWL_UCODE_API(drv->fw.ucode_ver);
1385
1386 /*
1387 * api_ver should match the api version forming part of the
1388 * firmware filename ... but we don't check for that and only rely
1389 * on the API version read from firmware header from here on forward
1390 */
1391 if (api_ver < api_min || api_ver > api_max) {
1392 IWL_ERR(drv,
1393 "Driver unable to support your firmware API. "
1394 "Driver supports v%u, firmware is v%u.\n",
1395 api_max, api_ver);
1396 goto try_again;
1397 }
1398
1399 /*
1400 * In mvm uCode there is no difference between data and instructions
1401 * sections.
1402 */
1403 if (fw->type == IWL_FW_DVM && validate_sec_sizes(drv, pieces,
1404 drv->trans->cfg))
1405 goto try_again;
1406
1407 /* Allocate ucode buffers for card's bus-master loading ... */
1408
1409 /* Runtime instructions and 2 copies of data:
1410 * 1) unmodified from disk
1411 * 2) backup cache for save/restore during power-downs
1412 */
1413 for (i = 0; i < IWL_UCODE_TYPE_MAX; i++)
1414 if (iwl_alloc_ucode(drv, pieces, i))
1415 goto out_free_fw;
1416
1417 if (pieces->dbg_dest_tlv_init) {
1418 size_t dbg_dest_size = sizeof(*drv->fw.dbg.dest_tlv) +
1419 sizeof(drv->fw.dbg.dest_tlv->reg_ops[0]) *
1420 drv->fw.dbg.n_dest_reg;
1421
1422 drv->fw.dbg.dest_tlv = kmalloc(dbg_dest_size, GFP_KERNEL);
1423
1424 if (!drv->fw.dbg.dest_tlv)
1425 goto out_free_fw;
1426
1427 if (*pieces->dbg_dest_ver == 0) {
1428 memcpy(drv->fw.dbg.dest_tlv, pieces->dbg_dest_tlv_v1,
1429 dbg_dest_size);
1430 } else {
1431 struct iwl_fw_dbg_dest_tlv_v1 *dest_tlv =
1432 drv->fw.dbg.dest_tlv;
1433
1434 dest_tlv->version = pieces->dbg_dest_tlv->version;
1435 dest_tlv->monitor_mode =
1436 pieces->dbg_dest_tlv->monitor_mode;
1437 dest_tlv->size_power =
1438 pieces->dbg_dest_tlv->size_power;
1439 dest_tlv->wrap_count =
1440 pieces->dbg_dest_tlv->wrap_count;
1441 dest_tlv->write_ptr_reg =
1442 pieces->dbg_dest_tlv->write_ptr_reg;
1443 dest_tlv->base_shift =
1444 pieces->dbg_dest_tlv->base_shift;
1445 memcpy(dest_tlv->reg_ops,
1446 pieces->dbg_dest_tlv->reg_ops,
1447 sizeof(drv->fw.dbg.dest_tlv->reg_ops[0]) *
1448 drv->fw.dbg.n_dest_reg);
1449
1450 /* In version 1 of the destination tlv, which is
1451 * relevant for internal buffer exclusively,
1452 * the base address is part of given with the length
1453 * of the buffer, and the size shift is give instead of
1454 * end shift. We now store these values in base_reg,
1455 * and end shift, and when dumping the data we'll
1456 * manipulate it for extracting both the length and
1457 * base address */
1458 dest_tlv->base_reg = pieces->dbg_dest_tlv->cfg_reg;
1459 dest_tlv->end_shift =
1460 pieces->dbg_dest_tlv->size_shift;
1461 }
1462 }
1463
1464 for (i = 0; i < ARRAY_SIZE(drv->fw.dbg.conf_tlv); i++) {
1465 if (pieces->dbg_conf_tlv[i]) {
1466 drv->fw.dbg.conf_tlv[i] =
1467 kmemdup(pieces->dbg_conf_tlv[i],
1468 pieces->dbg_conf_tlv_len[i],
1469 GFP_KERNEL);
1470 if (!pieces->dbg_conf_tlv[i])
1471 goto out_free_fw;
1472 }
1473 }
1474
1475 memset(&trigger_tlv_sz, 0xff, sizeof(trigger_tlv_sz));
1476
1477 trigger_tlv_sz[FW_DBG_TRIGGER_MISSED_BEACONS] =
1478 sizeof(struct iwl_fw_dbg_trigger_missed_bcon);
1479 trigger_tlv_sz[FW_DBG_TRIGGER_CHANNEL_SWITCH] = 0;
1480 trigger_tlv_sz[FW_DBG_TRIGGER_FW_NOTIF] =
1481 sizeof(struct iwl_fw_dbg_trigger_cmd);
1482 trigger_tlv_sz[FW_DBG_TRIGGER_MLME] =
1483 sizeof(struct iwl_fw_dbg_trigger_mlme);
1484 trigger_tlv_sz[FW_DBG_TRIGGER_STATS] =
1485 sizeof(struct iwl_fw_dbg_trigger_stats);
1486 trigger_tlv_sz[FW_DBG_TRIGGER_RSSI] =
1487 sizeof(struct iwl_fw_dbg_trigger_low_rssi);
1488 trigger_tlv_sz[FW_DBG_TRIGGER_TXQ_TIMERS] =
1489 sizeof(struct iwl_fw_dbg_trigger_txq_timer);
1490 trigger_tlv_sz[FW_DBG_TRIGGER_TIME_EVENT] =
1491 sizeof(struct iwl_fw_dbg_trigger_time_event);
1492 trigger_tlv_sz[FW_DBG_TRIGGER_BA] =
1493 sizeof(struct iwl_fw_dbg_trigger_ba);
1494 trigger_tlv_sz[FW_DBG_TRIGGER_TDLS] =
1495 sizeof(struct iwl_fw_dbg_trigger_tdls);
1496
1497 for (i = 0; i < ARRAY_SIZE(drv->fw.dbg.trigger_tlv); i++) {
1498 if (pieces->dbg_trigger_tlv[i]) {
1499 /*
1500 * If the trigger isn't long enough, WARN and exit.
1501 * Someone is trying to debug something and he won't
1502 * be able to catch the bug he is trying to chase.
1503 * We'd better be noisy to be sure he knows what's
1504 * going on.
1505 */
1506 if (WARN_ON(pieces->dbg_trigger_tlv_len[i] <
1507 (trigger_tlv_sz[i] +
1508 sizeof(struct iwl_fw_dbg_trigger_tlv))))
1509 goto out_free_fw;
1510 drv->fw.dbg.trigger_tlv_len[i] =
1511 pieces->dbg_trigger_tlv_len[i];
1512 drv->fw.dbg.trigger_tlv[i] =
1513 kmemdup(pieces->dbg_trigger_tlv[i],
1514 drv->fw.dbg.trigger_tlv_len[i],
1515 GFP_KERNEL);
1516 if (!drv->fw.dbg.trigger_tlv[i])
1517 goto out_free_fw;
1518 }
1519 }
1520
1521 /* Now that we can no longer fail, copy information */
1522
1523 drv->fw.dbg.mem_tlv = pieces->dbg_mem_tlv;
1524 pieces->dbg_mem_tlv = NULL;
1525 drv->fw.dbg.n_mem_tlv = pieces->n_mem_tlv;
1526
1527 /*
1528 * The (size - 16) / 12 formula is based on the information recorded
1529 * for each event, which is of mode 1 (including timestamp) for all
1530 * new microcodes that include this information.
1531 */
1532 fw->init_evtlog_ptr = pieces->init_evtlog_ptr;
1533 if (pieces->init_evtlog_size)
1534 fw->init_evtlog_size = (pieces->init_evtlog_size - 16)/12;
1535 else
1536 fw->init_evtlog_size =
1537 drv->trans->trans_cfg->base_params->max_event_log_size;
1538 fw->init_errlog_ptr = pieces->init_errlog_ptr;
1539 fw->inst_evtlog_ptr = pieces->inst_evtlog_ptr;
1540 if (pieces->inst_evtlog_size)
1541 fw->inst_evtlog_size = (pieces->inst_evtlog_size - 16)/12;
1542 else
1543 fw->inst_evtlog_size =
1544 drv->trans->trans_cfg->base_params->max_event_log_size;
1545 fw->inst_errlog_ptr = pieces->inst_errlog_ptr;
1546
1547 /*
1548 * figure out the offset of chain noise reset and gain commands
1549 * base on the size of standard phy calibration commands table size
1550 */
1551 if (fw->ucode_capa.standard_phy_calibration_size >
1552 IWL_MAX_PHY_CALIBRATE_TBL_SIZE)
1553 fw->ucode_capa.standard_phy_calibration_size =
1554 IWL_MAX_STANDARD_PHY_CALIBRATE_TBL_SIZE;
1555
1556 /* We have our copies now, allow OS release its copies */
1557 release_firmware(ucode_raw);
1558
1559 mutex_lock(&iwlwifi_opmode_table_mtx);
1560 switch (fw->type) {
1561 case IWL_FW_DVM:
1562 op = &iwlwifi_opmode_table[DVM_OP_MODE];
1563 break;
1564 default:
1565 WARN(1, "Invalid fw type %d\n", fw->type);
1566 /* fall through */
1567 case IWL_FW_MVM:
1568 op = &iwlwifi_opmode_table[MVM_OP_MODE];
1569 break;
1570 }
1571
1572 IWL_INFO(drv, "loaded firmware version %s op_mode %s\n",
1573 drv->fw.fw_version, op->name);
1574
1575 iwl_dbg_tlv_load_bin(drv->trans->dev, drv->trans);
1576
1577 /* add this device to the list of devices using this op_mode */
1578 list_add_tail(&drv->list, &op->drv);
1579
1580 if (op->ops) {
1581 drv->op_mode = _iwl_op_mode_start(drv, op);
1582
1583 if (!drv->op_mode) {
1584 mutex_unlock(&iwlwifi_opmode_table_mtx);
1585 goto out_unbind;
1586 }
1587 } else {
1588 load_module = true;
1589 }
1590 mutex_unlock(&iwlwifi_opmode_table_mtx);
1591
1592 /*
1593 * Complete the firmware request last so that
1594 * a driver unbind (stop) doesn't run while we
1595 * are doing the start() above.
1596 */
1597 complete(&drv->request_firmware_complete);
1598
1599 /*
1600 * Load the module last so we don't block anything
1601 * else from proceeding if the module fails to load
1602 * or hangs loading.
1603 */
1604 if (load_module) {
1605 request_module("%s", op->name);
1606 #ifdef CONFIG_IWLWIFI_OPMODE_MODULAR
1607 if (err)
1608 IWL_ERR(drv,
1609 "failed to load module %s (error %d), is dynamic loading enabled?\n",
1610 op->name, err);
1611 #endif
1612 }
1613 goto free;
1614
1615 try_again:
1616 /* try next, if any */
1617 release_firmware(ucode_raw);
1618 if (iwl_request_firmware(drv, false))
1619 goto out_unbind;
1620 goto free;
1621
1622 out_free_fw:
1623 release_firmware(ucode_raw);
1624 out_unbind:
1625 complete(&drv->request_firmware_complete);
1626 device_release_driver(drv->trans->dev);
1627 free:
1628 if (pieces) {
1629 for (i = 0; i < ARRAY_SIZE(pieces->img); i++)
1630 kfree(pieces->img[i].sec);
1631 kfree(pieces->dbg_mem_tlv);
1632 kfree(pieces);
1633 }
1634 }
1635
1636 struct iwl_drv *iwl_drv_start(struct iwl_trans *trans)
1637 {
1638 struct iwl_drv *drv;
1639 int ret;
1640
1641 drv = kzalloc(sizeof(*drv), GFP_KERNEL);
1642 if (!drv) {
1643 ret = -ENOMEM;
1644 goto err;
1645 }
1646
1647 drv->trans = trans;
1648 drv->dev = trans->dev;
1649
1650 init_completion(&drv->request_firmware_complete);
1651 INIT_LIST_HEAD(&drv->list);
1652
1653 #ifdef CONFIG_IWLWIFI_DEBUGFS
1654 /* Create the device debugfs entries. */
1655 drv->dbgfs_drv = debugfs_create_dir(dev_name(trans->dev),
1656 iwl_dbgfs_root);
1657
1658 /* Create transport layer debugfs dir */
1659 drv->trans->dbgfs_dir = debugfs_create_dir("trans", drv->dbgfs_drv);
1660 #endif
1661
1662 drv->trans->dbg.domains_bitmap = IWL_TRANS_FW_DBG_DOMAIN(drv->trans);
1663
1664 ret = iwl_request_firmware(drv, true);
1665 if (ret) {
1666 IWL_ERR(trans, "Couldn't request the fw\n");
1667 goto err_fw;
1668 }
1669
1670 return drv;
1671
1672 err_fw:
1673 #ifdef CONFIG_IWLWIFI_DEBUGFS
1674 debugfs_remove_recursive(drv->dbgfs_drv);
1675 iwl_dbg_tlv_free(drv->trans);
1676 #endif
1677 kfree(drv);
1678 err:
1679 return ERR_PTR(ret);
1680 }
1681
1682 void iwl_drv_stop(struct iwl_drv *drv)
1683 {
1684 wait_for_completion(&drv->request_firmware_complete);
1685
1686 _iwl_op_mode_stop(drv);
1687
1688 iwl_dealloc_ucode(drv);
1689
1690 mutex_lock(&iwlwifi_opmode_table_mtx);
1691 /*
1692 * List is empty (this item wasn't added)
1693 * when firmware loading failed -- in that
1694 * case we can't remove it from any list.
1695 */
1696 if (!list_empty(&drv->list))
1697 list_del(&drv->list);
1698 mutex_unlock(&iwlwifi_opmode_table_mtx);
1699
1700 #ifdef CONFIG_IWLWIFI_DEBUGFS
1701 drv->trans->ops->debugfs_cleanup(drv->trans);
1702
1703 debugfs_remove_recursive(drv->dbgfs_drv);
1704 #endif
1705
1706 iwl_dbg_tlv_free(drv->trans);
1707
1708 kfree(drv);
1709 }
1710
1711
1712 /* shared module parameters */
1713 struct iwl_mod_params iwlwifi_mod_params = {
1714 .fw_restart = true,
1715 .bt_coex_active = true,
1716 .power_level = IWL_POWER_INDEX_1,
1717 .uapsd_disable = IWL_DISABLE_UAPSD_BSS | IWL_DISABLE_UAPSD_P2P_CLIENT,
1718 .enable_ini = true,
1719 /* the rest are 0 by default */
1720 };
1721 IWL_EXPORT_SYMBOL(iwlwifi_mod_params);
1722
1723 int iwl_opmode_register(const char *name, const struct iwl_op_mode_ops *ops)
1724 {
1725 int i;
1726 struct iwl_drv *drv;
1727 struct iwlwifi_opmode_table *op;
1728
1729 mutex_lock(&iwlwifi_opmode_table_mtx);
1730 for (i = 0; i < ARRAY_SIZE(iwlwifi_opmode_table); i++) {
1731 op = &iwlwifi_opmode_table[i];
1732 if (strcmp(op->name, name))
1733 continue;
1734 op->ops = ops;
1735 /* TODO: need to handle exceptional case */
1736 list_for_each_entry(drv, &op->drv, list)
1737 drv->op_mode = _iwl_op_mode_start(drv, op);
1738
1739 mutex_unlock(&iwlwifi_opmode_table_mtx);
1740 return 0;
1741 }
1742 mutex_unlock(&iwlwifi_opmode_table_mtx);
1743 return -EIO;
1744 }
1745 IWL_EXPORT_SYMBOL(iwl_opmode_register);
1746
1747 void iwl_opmode_deregister(const char *name)
1748 {
1749 int i;
1750 struct iwl_drv *drv;
1751
1752 mutex_lock(&iwlwifi_opmode_table_mtx);
1753 for (i = 0; i < ARRAY_SIZE(iwlwifi_opmode_table); i++) {
1754 if (strcmp(iwlwifi_opmode_table[i].name, name))
1755 continue;
1756 iwlwifi_opmode_table[i].ops = NULL;
1757
1758 /* call the stop routine for all devices */
1759 list_for_each_entry(drv, &iwlwifi_opmode_table[i].drv, list)
1760 _iwl_op_mode_stop(drv);
1761
1762 mutex_unlock(&iwlwifi_opmode_table_mtx);
1763 return;
1764 }
1765 mutex_unlock(&iwlwifi_opmode_table_mtx);
1766 }
1767 IWL_EXPORT_SYMBOL(iwl_opmode_deregister);
1768
1769 static int __init iwl_drv_init(void)
1770 {
1771 int i, err;
1772
1773 mutex_init(&iwlwifi_opmode_table_mtx);
1774
1775 for (i = 0; i < ARRAY_SIZE(iwlwifi_opmode_table); i++)
1776 INIT_LIST_HEAD(&iwlwifi_opmode_table[i].drv);
1777
1778 pr_info(DRV_DESCRIPTION "\n");
1779 pr_info(DRV_COPYRIGHT "\n");
1780
1781 #ifdef CONFIG_IWLWIFI_DEBUGFS
1782 /* Create the root of iwlwifi debugfs subsystem. */
1783 iwl_dbgfs_root = debugfs_create_dir(DRV_NAME, NULL);
1784 #endif
1785
1786 err = iwl_pci_register_driver();
1787 if (err)
1788 goto cleanup_debugfs;
1789
1790 return 0;
1791
1792 cleanup_debugfs:
1793 #ifdef CONFIG_IWLWIFI_DEBUGFS
1794 debugfs_remove_recursive(iwl_dbgfs_root);
1795 #endif
1796 return err;
1797 }
1798 module_init(iwl_drv_init);
1799
1800 static void __exit iwl_drv_exit(void)
1801 {
1802 iwl_pci_unregister_driver();
1803
1804 #ifdef CONFIG_IWLWIFI_DEBUGFS
1805 debugfs_remove_recursive(iwl_dbgfs_root);
1806 #endif
1807 }
1808 module_exit(iwl_drv_exit);
1809
1810 #ifdef CONFIG_IWLWIFI_DEBUG
1811 module_param_named(debug, iwlwifi_mod_params.debug_level, uint, 0644);
1812 MODULE_PARM_DESC(debug, "debug output mask");
1813 #endif
1814
1815 module_param_named(swcrypto, iwlwifi_mod_params.swcrypto, int, 0444);
1816 MODULE_PARM_DESC(swcrypto, "using crypto in software (default 0 [hardware])");
1817 module_param_named(11n_disable, iwlwifi_mod_params.disable_11n, uint, 0444);
1818 MODULE_PARM_DESC(11n_disable,
1819 "disable 11n functionality, bitmap: 1: full, 2: disable agg TX, 4: disable agg RX, 8 enable agg TX");
1820 module_param_named(amsdu_size, iwlwifi_mod_params.amsdu_size, int, 0444);
1821 MODULE_PARM_DESC(amsdu_size,
1822 "amsdu size 0: 12K for multi Rx queue devices, 2K for AX210 devices, "
1823 "4K for other devices 1:4K 2:8K 3:12K 4: 2K (default 0)");
1824 module_param_named(fw_restart, iwlwifi_mod_params.fw_restart, bool, 0444);
1825 MODULE_PARM_DESC(fw_restart, "restart firmware in case of error (default true)");
1826
1827 module_param_named(antenna_coupling, iwlwifi_mod_params.antenna_coupling,
1828 int, 0444);
1829 MODULE_PARM_DESC(antenna_coupling,
1830 "specify antenna coupling in dB (default: 0 dB)");
1831
1832 module_param_named(nvm_file, iwlwifi_mod_params.nvm_file, charp, 0444);
1833 MODULE_PARM_DESC(nvm_file, "NVM file name");
1834
1835 module_param_named(uapsd_disable, iwlwifi_mod_params.uapsd_disable, uint, 0644);
1836 MODULE_PARM_DESC(uapsd_disable,
1837 "disable U-APSD functionality bitmap 1: BSS 2: P2P Client (default: 3)");
1838 module_param_named(enable_ini, iwlwifi_mod_params.enable_ini,
1839 bool, S_IRUGO | S_IWUSR);
1840 MODULE_PARM_DESC(enable_ini,
1841 "Enable debug INI TLV FW debug infrastructure (default: true");
1842
1843 /*
1844 * set bt_coex_active to true, uCode will do kill/defer
1845 * every time the priority line is asserted (BT is sending signals on the
1846 * priority line in the PCIx).
1847 * set bt_coex_active to false, uCode will ignore the BT activity and
1848 * perform the normal operation
1849 *
1850 * User might experience transmit issue on some platform due to WiFi/BT
1851 * co-exist problem. The possible behaviors are:
1852 * Able to scan and finding all the available AP
1853 * Not able to associate with any AP
1854 * On those platforms, WiFi communication can be restored by set
1855 * "bt_coex_active" module parameter to "false"
1856 *
1857 * default: bt_coex_active = true (BT_COEX_ENABLE)
1858 */
1859 module_param_named(bt_coex_active, iwlwifi_mod_params.bt_coex_active,
1860 bool, 0444);
1861 MODULE_PARM_DESC(bt_coex_active, "enable wifi/bt co-exist (default: enable)");
1862
1863 module_param_named(led_mode, iwlwifi_mod_params.led_mode, int, 0444);
1864 MODULE_PARM_DESC(led_mode, "0=system default, "
1865 "1=On(RF On)/Off(RF Off), 2=blinking, 3=Off (default: 0)");
1866
1867 module_param_named(power_save, iwlwifi_mod_params.power_save, bool, 0444);
1868 MODULE_PARM_DESC(power_save,
1869 "enable WiFi power management (default: disable)");
1870
1871 module_param_named(power_level, iwlwifi_mod_params.power_level, int, 0444);
1872 MODULE_PARM_DESC(power_level,
1873 "default power save level (range from 1 - 5, default: 1)");
1874
1875 module_param_named(fw_monitor, iwlwifi_mod_params.fw_monitor, bool, 0444);
1876 MODULE_PARM_DESC(fw_monitor,
1877 "firmware monitor - to debug FW (default: false - needs lots of memory)");
1878
1879 module_param_named(disable_11ac, iwlwifi_mod_params.disable_11ac, bool, 0444);
1880 MODULE_PARM_DESC(disable_11ac, "Disable VHT capabilities (default: false)");
1881
1882 module_param_named(remove_when_gone,
1883 iwlwifi_mod_params.remove_when_gone, bool,
1884 0444);
1885 MODULE_PARM_DESC(remove_when_gone,
1886 "Remove dev from PCIe bus if it is deemed inaccessible (default: false)");
1887
1888 module_param_named(disable_11ax, iwlwifi_mod_params.disable_11ax, bool,
1889 S_IRUGO);
1890 MODULE_PARM_DESC(disable_11ax, "Disable HE capabilities (default: false)");
Linux with added FPC-III support