iwlwifi: mvm: no need to check return value of debugfs_create functions
[muen/linux.git] / drivers / net / wireless / intel / iwlwifi / iwl-drv.c
1 /******************************************************************************
2  *
3  * This file is provided under a dual BSD/GPLv2 license.  When using or
4  * redistributing this file, you may do so under either license.
5  *
6  * GPL LICENSE SUMMARY
7  *
8  * Copyright(c) 2007 - 2014 Intel Corporation. All rights reserved.
9  * Copyright(c) 2013 - 2015 Intel Mobile Communications GmbH
10  * 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
183         for (i = 0; i < IWL_UCODE_TYPE_MAX; i++)
184                 iwl_free_fw_img(drv, drv->fw.img + i);
185 }
186
187 static int iwl_alloc_fw_desc(struct iwl_drv *drv, struct fw_desc *desc,
188                              struct fw_sec *sec)
189 {
190         void *data;
191
192         desc->data = NULL;
193
194         if (!sec || !sec->size)
195                 return -EINVAL;
196
197         data = vmalloc(sec->size);
198         if (!data)
199                 return -ENOMEM;
200
201         desc->len = sec->size;
202         desc->offset = sec->offset;
203         memcpy(data, sec->data, desc->len);
204         desc->data = data;
205
206         return 0;
207 }
208
209 static void iwl_req_fw_callback(const struct firmware *ucode_raw,
210                                 void *context);
211
212 static int iwl_request_firmware(struct iwl_drv *drv, bool first)
213 {
214         const struct iwl_cfg *cfg = drv->trans->cfg;
215         char tag[8];
216
217         if (drv->trans->cfg->device_family == IWL_DEVICE_FAMILY_9000 &&
218             (CSR_HW_REV_STEP(drv->trans->hw_rev) != SILICON_B_STEP &&
219              CSR_HW_REV_STEP(drv->trans->hw_rev) != SILICON_C_STEP)) {
220                 IWL_ERR(drv,
221                         "Only HW steps B and C are currently supported (0x%0x)\n",
222                         drv->trans->hw_rev);
223                 return -EINVAL;
224         }
225
226         if (first) {
227                 drv->fw_index = cfg->ucode_api_max;
228                 sprintf(tag, "%d", drv->fw_index);
229         } else {
230                 drv->fw_index--;
231                 sprintf(tag, "%d", drv->fw_index);
232         }
233
234         if (drv->fw_index < cfg->ucode_api_min) {
235                 IWL_ERR(drv, "no suitable firmware found!\n");
236
237                 if (cfg->ucode_api_min == cfg->ucode_api_max) {
238                         IWL_ERR(drv, "%s%d is required\n", cfg->fw_name_pre,
239                                 cfg->ucode_api_max);
240                 } else {
241                         IWL_ERR(drv, "minimum version required: %s%d\n",
242                                 cfg->fw_name_pre, cfg->ucode_api_min);
243                         IWL_ERR(drv, "maximum version supported: %s%d\n",
244                                 cfg->fw_name_pre, cfg->ucode_api_max);
245                 }
246
247                 IWL_ERR(drv,
248                         "check git://git.kernel.org/pub/scm/linux/kernel/git/firmware/linux-firmware.git\n");
249                 return -ENOENT;
250         }
251
252         snprintf(drv->firmware_name, sizeof(drv->firmware_name), "%s%s.ucode",
253                  cfg->fw_name_pre, tag);
254
255         IWL_DEBUG_INFO(drv, "attempting to load firmware '%s'\n",
256                        drv->firmware_name);
257
258         return request_firmware_nowait(THIS_MODULE, 1, drv->firmware_name,
259                                        drv->trans->dev,
260                                        GFP_KERNEL, drv, iwl_req_fw_callback);
261 }
262
263 struct fw_img_parsing {
264         struct fw_sec *sec;
265         int sec_counter;
266 };
267
268 /*
269  * struct fw_sec_parsing: to extract fw section and it's offset from tlv
270  */
271 struct fw_sec_parsing {
272         __le32 offset;
273         const u8 data[];
274 } __packed;
275
276 /**
277  * struct iwl_tlv_calib_data - parse the default calib data from TLV
278  *
279  * @ucode_type: the uCode to which the following default calib relates.
280  * @calib: default calibrations.
281  */
282 struct iwl_tlv_calib_data {
283         __le32 ucode_type;
284         struct iwl_tlv_calib_ctrl calib;
285 } __packed;
286
287 struct iwl_firmware_pieces {
288         struct fw_img_parsing img[IWL_UCODE_TYPE_MAX];
289
290         u32 init_evtlog_ptr, init_evtlog_size, init_errlog_ptr;
291         u32 inst_evtlog_ptr, inst_evtlog_size, inst_errlog_ptr;
292
293         /* FW debug data parsed for driver usage */
294         bool dbg_dest_tlv_init;
295         u8 *dbg_dest_ver;
296         union {
297                 struct iwl_fw_dbg_dest_tlv *dbg_dest_tlv;
298                 struct iwl_fw_dbg_dest_tlv_v1 *dbg_dest_tlv_v1;
299         };
300         struct iwl_fw_dbg_conf_tlv *dbg_conf_tlv[FW_DBG_CONF_MAX];
301         size_t dbg_conf_tlv_len[FW_DBG_CONF_MAX];
302         struct iwl_fw_dbg_trigger_tlv *dbg_trigger_tlv[FW_DBG_TRIGGER_MAX];
303         size_t dbg_trigger_tlv_len[FW_DBG_TRIGGER_MAX];
304         struct iwl_fw_dbg_mem_seg_tlv *dbg_mem_tlv;
305         size_t n_mem_tlv;
306 };
307
308 /*
309  * These functions are just to extract uCode section data from the pieces
310  * structure.
311  */
312 static struct fw_sec *get_sec(struct iwl_firmware_pieces *pieces,
313                               enum iwl_ucode_type type,
314                               int  sec)
315 {
316         return &pieces->img[type].sec[sec];
317 }
318
319 static void alloc_sec_data(struct iwl_firmware_pieces *pieces,
320                            enum iwl_ucode_type type,
321                            int sec)
322 {
323         struct fw_img_parsing *img = &pieces->img[type];
324         struct fw_sec *sec_memory;
325         int size = sec + 1;
326         size_t alloc_size = sizeof(*img->sec) * size;
327
328         if (img->sec && img->sec_counter >= size)
329                 return;
330
331         sec_memory = krealloc(img->sec, alloc_size, GFP_KERNEL);
332         if (!sec_memory)
333                 return;
334
335         img->sec = sec_memory;
336         img->sec_counter = size;
337 }
338
339 static void set_sec_data(struct iwl_firmware_pieces *pieces,
340                          enum iwl_ucode_type type,
341                          int sec,
342                          const void *data)
343 {
344         alloc_sec_data(pieces, type, sec);
345
346         pieces->img[type].sec[sec].data = data;
347 }
348
349 static void set_sec_size(struct iwl_firmware_pieces *pieces,
350                          enum iwl_ucode_type type,
351                          int sec,
352                          size_t size)
353 {
354         alloc_sec_data(pieces, type, sec);
355
356         pieces->img[type].sec[sec].size = size;
357 }
358
359 static size_t get_sec_size(struct iwl_firmware_pieces *pieces,
360                            enum iwl_ucode_type type,
361                            int sec)
362 {
363         return pieces->img[type].sec[sec].size;
364 }
365
366 static void set_sec_offset(struct iwl_firmware_pieces *pieces,
367                            enum iwl_ucode_type type,
368                            int sec,
369                            u32 offset)
370 {
371         alloc_sec_data(pieces, type, sec);
372
373         pieces->img[type].sec[sec].offset = offset;
374 }
375
376 static int iwl_store_cscheme(struct iwl_fw *fw, const u8 *data, const u32 len)
377 {
378         int i, j;
379         struct iwl_fw_cscheme_list *l = (struct iwl_fw_cscheme_list *)data;
380         struct iwl_fw_cipher_scheme *fwcs;
381
382         if (len < sizeof(*l) ||
383             len < sizeof(l->size) + l->size * sizeof(l->cs[0]))
384                 return -EINVAL;
385
386         for (i = 0, j = 0; i < IWL_UCODE_MAX_CS && i < l->size; i++) {
387                 fwcs = &l->cs[j];
388
389                 /* we skip schemes with zero cipher suite selector */
390                 if (!fwcs->cipher)
391                         continue;
392
393                 fw->cs[j++] = *fwcs;
394         }
395
396         return 0;
397 }
398
399 /*
400  * Gets uCode section from tlv.
401  */
402 static int iwl_store_ucode_sec(struct iwl_firmware_pieces *pieces,
403                                const void *data, enum iwl_ucode_type type,
404                                int size)
405 {
406         struct fw_img_parsing *img;
407         struct fw_sec *sec;
408         struct fw_sec_parsing *sec_parse;
409         size_t alloc_size;
410
411         if (WARN_ON(!pieces || !data || type >= IWL_UCODE_TYPE_MAX))
412                 return -1;
413
414         sec_parse = (struct fw_sec_parsing *)data;
415
416         img = &pieces->img[type];
417
418         alloc_size = sizeof(*img->sec) * (img->sec_counter + 1);
419         sec = krealloc(img->sec, alloc_size, GFP_KERNEL);
420         if (!sec)
421                 return -ENOMEM;
422         img->sec = sec;
423
424         sec = &img->sec[img->sec_counter];
425
426         sec->offset = le32_to_cpu(sec_parse->offset);
427         sec->data = sec_parse->data;
428         sec->size = size - sizeof(sec_parse->offset);
429
430         ++img->sec_counter;
431
432         return 0;
433 }
434
435 static int iwl_set_default_calib(struct iwl_drv *drv, const u8 *data)
436 {
437         struct iwl_tlv_calib_data *def_calib =
438                                         (struct iwl_tlv_calib_data *)data;
439         u32 ucode_type = le32_to_cpu(def_calib->ucode_type);
440         if (ucode_type >= IWL_UCODE_TYPE_MAX) {
441                 IWL_ERR(drv, "Wrong ucode_type %u for default calibration.\n",
442                         ucode_type);
443                 return -EINVAL;
444         }
445         drv->fw.default_calib[ucode_type].flow_trigger =
446                 def_calib->calib.flow_trigger;
447         drv->fw.default_calib[ucode_type].event_trigger =
448                 def_calib->calib.event_trigger;
449
450         return 0;
451 }
452
453 static void iwl_set_ucode_api_flags(struct iwl_drv *drv, const u8 *data,
454                                     struct iwl_ucode_capabilities *capa)
455 {
456         const struct iwl_ucode_api *ucode_api = (void *)data;
457         u32 api_index = le32_to_cpu(ucode_api->api_index);
458         u32 api_flags = le32_to_cpu(ucode_api->api_flags);
459         int i;
460
461         if (api_index >= DIV_ROUND_UP(NUM_IWL_UCODE_TLV_API, 32)) {
462                 IWL_WARN(drv,
463                          "api flags index %d larger than supported by driver\n",
464                          api_index);
465                 return;
466         }
467
468         for (i = 0; i < 32; i++) {
469                 if (api_flags & BIT(i))
470                         __set_bit(i + 32 * api_index, capa->_api);
471         }
472 }
473
474 static void iwl_set_ucode_capabilities(struct iwl_drv *drv, const u8 *data,
475                                        struct iwl_ucode_capabilities *capa)
476 {
477         const struct iwl_ucode_capa *ucode_capa = (void *)data;
478         u32 api_index = le32_to_cpu(ucode_capa->api_index);
479         u32 api_flags = le32_to_cpu(ucode_capa->api_capa);
480         int i;
481
482         if (api_index >= DIV_ROUND_UP(NUM_IWL_UCODE_TLV_CAPA, 32)) {
483                 IWL_WARN(drv,
484                          "capa flags index %d larger than supported by driver\n",
485                          api_index);
486                 return;
487         }
488
489         for (i = 0; i < 32; i++) {
490                 if (api_flags & BIT(i))
491                         __set_bit(i + 32 * api_index, capa->_capa);
492         }
493 }
494
495 static int iwl_parse_v1_v2_firmware(struct iwl_drv *drv,
496                                     const struct firmware *ucode_raw,
497                                     struct iwl_firmware_pieces *pieces)
498 {
499         struct iwl_ucode_header *ucode = (void *)ucode_raw->data;
500         u32 api_ver, hdr_size, build;
501         char buildstr[25];
502         const u8 *src;
503
504         drv->fw.ucode_ver = le32_to_cpu(ucode->ver);
505         api_ver = IWL_UCODE_API(drv->fw.ucode_ver);
506
507         switch (api_ver) {
508         default:
509                 hdr_size = 28;
510                 if (ucode_raw->size < hdr_size) {
511                         IWL_ERR(drv, "File size too small!\n");
512                         return -EINVAL;
513                 }
514                 build = le32_to_cpu(ucode->u.v2.build);
515                 set_sec_size(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_INST,
516                              le32_to_cpu(ucode->u.v2.inst_size));
517                 set_sec_size(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_DATA,
518                              le32_to_cpu(ucode->u.v2.data_size));
519                 set_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_INST,
520                              le32_to_cpu(ucode->u.v2.init_size));
521                 set_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_DATA,
522                              le32_to_cpu(ucode->u.v2.init_data_size));
523                 src = ucode->u.v2.data;
524                 break;
525         case 0:
526         case 1:
527         case 2:
528                 hdr_size = 24;
529                 if (ucode_raw->size < hdr_size) {
530                         IWL_ERR(drv, "File size too small!\n");
531                         return -EINVAL;
532                 }
533                 build = 0;
534                 set_sec_size(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_INST,
535                              le32_to_cpu(ucode->u.v1.inst_size));
536                 set_sec_size(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_DATA,
537                              le32_to_cpu(ucode->u.v1.data_size));
538                 set_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_INST,
539                              le32_to_cpu(ucode->u.v1.init_size));
540                 set_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_DATA,
541                              le32_to_cpu(ucode->u.v1.init_data_size));
542                 src = ucode->u.v1.data;
543                 break;
544         }
545
546         if (build)
547                 sprintf(buildstr, " build %u", build);
548         else
549                 buildstr[0] = '\0';
550
551         snprintf(drv->fw.fw_version,
552                  sizeof(drv->fw.fw_version),
553                  "%u.%u.%u.%u%s",
554                  IWL_UCODE_MAJOR(drv->fw.ucode_ver),
555                  IWL_UCODE_MINOR(drv->fw.ucode_ver),
556                  IWL_UCODE_API(drv->fw.ucode_ver),
557                  IWL_UCODE_SERIAL(drv->fw.ucode_ver),
558                  buildstr);
559
560         /* Verify size of file vs. image size info in file's header */
561
562         if (ucode_raw->size != hdr_size +
563             get_sec_size(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_INST) +
564             get_sec_size(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_DATA) +
565             get_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_INST) +
566             get_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_DATA)) {
567
568                 IWL_ERR(drv,
569                         "uCode file size %d does not match expected size\n",
570                         (int)ucode_raw->size);
571                 return -EINVAL;
572         }
573
574
575         set_sec_data(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_INST, src);
576         src += get_sec_size(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_INST);
577         set_sec_offset(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_INST,
578                        IWLAGN_RTC_INST_LOWER_BOUND);
579         set_sec_data(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_DATA, src);
580         src += get_sec_size(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_DATA);
581         set_sec_offset(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_DATA,
582                        IWLAGN_RTC_DATA_LOWER_BOUND);
583         set_sec_data(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_INST, src);
584         src += get_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_INST);
585         set_sec_offset(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_INST,
586                        IWLAGN_RTC_INST_LOWER_BOUND);
587         set_sec_data(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_DATA, src);
588         src += get_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_DATA);
589         set_sec_offset(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_DATA,
590                        IWLAGN_RTC_DATA_LOWER_BOUND);
591         return 0;
592 }
593
594 #define FW_ADDR_CACHE_CONTROL 0xC0000000
595
596 static int iwl_parse_tlv_firmware(struct iwl_drv *drv,
597                                 const struct firmware *ucode_raw,
598                                 struct iwl_firmware_pieces *pieces,
599                                 struct iwl_ucode_capabilities *capa,
600                                 bool *usniffer_images)
601 {
602         struct iwl_tlv_ucode_header *ucode = (void *)ucode_raw->data;
603         struct iwl_ucode_tlv *tlv;
604         size_t len = ucode_raw->size;
605         const u8 *data;
606         u32 tlv_len;
607         u32 usniffer_img;
608         enum iwl_ucode_tlv_type tlv_type;
609         const u8 *tlv_data;
610         char buildstr[25];
611         u32 build, paging_mem_size;
612         int num_of_cpus;
613         bool usniffer_req = false;
614
615         if (len < sizeof(*ucode)) {
616                 IWL_ERR(drv, "uCode has invalid length: %zd\n", len);
617                 return -EINVAL;
618         }
619
620         if (ucode->magic != cpu_to_le32(IWL_TLV_UCODE_MAGIC)) {
621                 IWL_ERR(drv, "invalid uCode magic: 0X%x\n",
622                         le32_to_cpu(ucode->magic));
623                 return -EINVAL;
624         }
625
626         drv->fw.ucode_ver = le32_to_cpu(ucode->ver);
627         memcpy(drv->fw.human_readable, ucode->human_readable,
628                sizeof(drv->fw.human_readable));
629         build = le32_to_cpu(ucode->build);
630
631         if (build)
632                 sprintf(buildstr, " build %u", build);
633         else
634                 buildstr[0] = '\0';
635
636         snprintf(drv->fw.fw_version,
637                  sizeof(drv->fw.fw_version),
638                  "%u.%u.%u.%u%s",
639                  IWL_UCODE_MAJOR(drv->fw.ucode_ver),
640                  IWL_UCODE_MINOR(drv->fw.ucode_ver),
641                  IWL_UCODE_API(drv->fw.ucode_ver),
642                  IWL_UCODE_SERIAL(drv->fw.ucode_ver),
643                  buildstr);
644
645         data = ucode->data;
646
647         len -= sizeof(*ucode);
648
649         if (iwlwifi_mod_params.enable_ini)
650                 iwl_alloc_dbg_tlv(drv->trans, len, data, false);
651
652         while (len >= sizeof(*tlv)) {
653                 len -= sizeof(*tlv);
654                 tlv = (void *)data;
655
656                 tlv_len = le32_to_cpu(tlv->length);
657                 tlv_type = le32_to_cpu(tlv->type);
658                 tlv_data = tlv->data;
659
660                 if (len < tlv_len) {
661                         IWL_ERR(drv, "invalid TLV len: %zd/%u\n",
662                                 len, tlv_len);
663                         return -EINVAL;
664                 }
665                 len -= ALIGN(tlv_len, 4);
666                 data += sizeof(*tlv) + ALIGN(tlv_len, 4);
667
668                 switch (tlv_type) {
669                 case IWL_UCODE_TLV_INST:
670                         set_sec_data(pieces, IWL_UCODE_REGULAR,
671                                      IWL_UCODE_SECTION_INST, tlv_data);
672                         set_sec_size(pieces, IWL_UCODE_REGULAR,
673                                      IWL_UCODE_SECTION_INST, tlv_len);
674                         set_sec_offset(pieces, IWL_UCODE_REGULAR,
675                                        IWL_UCODE_SECTION_INST,
676                                        IWLAGN_RTC_INST_LOWER_BOUND);
677                         break;
678                 case IWL_UCODE_TLV_DATA:
679                         set_sec_data(pieces, IWL_UCODE_REGULAR,
680                                      IWL_UCODE_SECTION_DATA, tlv_data);
681                         set_sec_size(pieces, IWL_UCODE_REGULAR,
682                                      IWL_UCODE_SECTION_DATA, tlv_len);
683                         set_sec_offset(pieces, IWL_UCODE_REGULAR,
684                                        IWL_UCODE_SECTION_DATA,
685                                        IWLAGN_RTC_DATA_LOWER_BOUND);
686                         break;
687                 case IWL_UCODE_TLV_INIT:
688                         set_sec_data(pieces, IWL_UCODE_INIT,
689                                      IWL_UCODE_SECTION_INST, tlv_data);
690                         set_sec_size(pieces, IWL_UCODE_INIT,
691                                      IWL_UCODE_SECTION_INST, tlv_len);
692                         set_sec_offset(pieces, IWL_UCODE_INIT,
693                                        IWL_UCODE_SECTION_INST,
694                                        IWLAGN_RTC_INST_LOWER_BOUND);
695                         break;
696                 case IWL_UCODE_TLV_INIT_DATA:
697                         set_sec_data(pieces, IWL_UCODE_INIT,
698                                      IWL_UCODE_SECTION_DATA, tlv_data);
699                         set_sec_size(pieces, IWL_UCODE_INIT,
700                                      IWL_UCODE_SECTION_DATA, tlv_len);
701                         set_sec_offset(pieces, IWL_UCODE_INIT,
702                                        IWL_UCODE_SECTION_DATA,
703                                        IWLAGN_RTC_DATA_LOWER_BOUND);
704                         break;
705                 case IWL_UCODE_TLV_BOOT:
706                         IWL_ERR(drv, "Found unexpected BOOT ucode\n");
707                         break;
708                 case IWL_UCODE_TLV_PROBE_MAX_LEN:
709                         if (tlv_len != sizeof(u32))
710                                 goto invalid_tlv_len;
711                         capa->max_probe_length =
712                                         le32_to_cpup((__le32 *)tlv_data);
713                         break;
714                 case IWL_UCODE_TLV_PAN:
715                         if (tlv_len)
716                                 goto invalid_tlv_len;
717                         capa->flags |= IWL_UCODE_TLV_FLAGS_PAN;
718                         break;
719                 case IWL_UCODE_TLV_FLAGS:
720                         /* must be at least one u32 */
721                         if (tlv_len < sizeof(u32))
722                                 goto invalid_tlv_len;
723                         /* and a proper number of u32s */
724                         if (tlv_len % sizeof(u32))
725                                 goto invalid_tlv_len;
726                         /*
727                          * This driver only reads the first u32 as
728                          * right now no more features are defined,
729                          * if that changes then either the driver
730                          * will not work with the new firmware, or
731                          * it'll not take advantage of new features.
732                          */
733                         capa->flags = le32_to_cpup((__le32 *)tlv_data);
734                         break;
735                 case IWL_UCODE_TLV_API_CHANGES_SET:
736                         if (tlv_len != sizeof(struct iwl_ucode_api))
737                                 goto invalid_tlv_len;
738                         iwl_set_ucode_api_flags(drv, tlv_data, capa);
739                         break;
740                 case IWL_UCODE_TLV_ENABLED_CAPABILITIES:
741                         if (tlv_len != sizeof(struct iwl_ucode_capa))
742                                 goto invalid_tlv_len;
743                         iwl_set_ucode_capabilities(drv, tlv_data, capa);
744                         break;
745                 case IWL_UCODE_TLV_INIT_EVTLOG_PTR:
746                         if (tlv_len != sizeof(u32))
747                                 goto invalid_tlv_len;
748                         pieces->init_evtlog_ptr =
749                                         le32_to_cpup((__le32 *)tlv_data);
750                         break;
751                 case IWL_UCODE_TLV_INIT_EVTLOG_SIZE:
752                         if (tlv_len != sizeof(u32))
753                                 goto invalid_tlv_len;
754                         pieces->init_evtlog_size =
755                                         le32_to_cpup((__le32 *)tlv_data);
756                         break;
757                 case IWL_UCODE_TLV_INIT_ERRLOG_PTR:
758                         if (tlv_len != sizeof(u32))
759                                 goto invalid_tlv_len;
760                         pieces->init_errlog_ptr =
761                                         le32_to_cpup((__le32 *)tlv_data);
762                         break;
763                 case IWL_UCODE_TLV_RUNT_EVTLOG_PTR:
764                         if (tlv_len != sizeof(u32))
765                                 goto invalid_tlv_len;
766                         pieces->inst_evtlog_ptr =
767                                         le32_to_cpup((__le32 *)tlv_data);
768                         break;
769                 case IWL_UCODE_TLV_RUNT_EVTLOG_SIZE:
770                         if (tlv_len != sizeof(u32))
771                                 goto invalid_tlv_len;
772                         pieces->inst_evtlog_size =
773                                         le32_to_cpup((__le32 *)tlv_data);
774                         break;
775                 case IWL_UCODE_TLV_RUNT_ERRLOG_PTR:
776                         if (tlv_len != sizeof(u32))
777                                 goto invalid_tlv_len;
778                         pieces->inst_errlog_ptr =
779                                         le32_to_cpup((__le32 *)tlv_data);
780                         break;
781                 case IWL_UCODE_TLV_ENHANCE_SENS_TBL:
782                         if (tlv_len)
783                                 goto invalid_tlv_len;
784                         drv->fw.enhance_sensitivity_table = true;
785                         break;
786                 case IWL_UCODE_TLV_WOWLAN_INST:
787                         set_sec_data(pieces, IWL_UCODE_WOWLAN,
788                                      IWL_UCODE_SECTION_INST, tlv_data);
789                         set_sec_size(pieces, IWL_UCODE_WOWLAN,
790                                      IWL_UCODE_SECTION_INST, tlv_len);
791                         set_sec_offset(pieces, IWL_UCODE_WOWLAN,
792                                        IWL_UCODE_SECTION_INST,
793                                        IWLAGN_RTC_INST_LOWER_BOUND);
794                         break;
795                 case IWL_UCODE_TLV_WOWLAN_DATA:
796                         set_sec_data(pieces, IWL_UCODE_WOWLAN,
797                                      IWL_UCODE_SECTION_DATA, tlv_data);
798                         set_sec_size(pieces, IWL_UCODE_WOWLAN,
799                                      IWL_UCODE_SECTION_DATA, tlv_len);
800                         set_sec_offset(pieces, IWL_UCODE_WOWLAN,
801                                        IWL_UCODE_SECTION_DATA,
802                                        IWLAGN_RTC_DATA_LOWER_BOUND);
803                         break;
804                 case IWL_UCODE_TLV_PHY_CALIBRATION_SIZE:
805                         if (tlv_len != sizeof(u32))
806                                 goto invalid_tlv_len;
807                         capa->standard_phy_calibration_size =
808                                         le32_to_cpup((__le32 *)tlv_data);
809                         break;
810                 case IWL_UCODE_TLV_SEC_RT:
811                         iwl_store_ucode_sec(pieces, tlv_data, IWL_UCODE_REGULAR,
812                                             tlv_len);
813                         drv->fw.type = IWL_FW_MVM;
814                         break;
815                 case IWL_UCODE_TLV_SEC_INIT:
816                         iwl_store_ucode_sec(pieces, tlv_data, IWL_UCODE_INIT,
817                                             tlv_len);
818                         drv->fw.type = IWL_FW_MVM;
819                         break;
820                 case IWL_UCODE_TLV_SEC_WOWLAN:
821                         iwl_store_ucode_sec(pieces, tlv_data, IWL_UCODE_WOWLAN,
822                                             tlv_len);
823                         drv->fw.type = IWL_FW_MVM;
824                         break;
825                 case IWL_UCODE_TLV_DEF_CALIB:
826                         if (tlv_len != sizeof(struct iwl_tlv_calib_data))
827                                 goto invalid_tlv_len;
828                         if (iwl_set_default_calib(drv, tlv_data))
829                                 goto tlv_error;
830                         break;
831                 case IWL_UCODE_TLV_PHY_SKU:
832                         if (tlv_len != sizeof(u32))
833                                 goto invalid_tlv_len;
834                         drv->fw.phy_config = le32_to_cpup((__le32 *)tlv_data);
835                         drv->fw.valid_tx_ant = (drv->fw.phy_config &
836                                                 FW_PHY_CFG_TX_CHAIN) >>
837                                                 FW_PHY_CFG_TX_CHAIN_POS;
838                         drv->fw.valid_rx_ant = (drv->fw.phy_config &
839                                                 FW_PHY_CFG_RX_CHAIN) >>
840                                                 FW_PHY_CFG_RX_CHAIN_POS;
841                         break;
842                 case IWL_UCODE_TLV_SECURE_SEC_RT:
843                         iwl_store_ucode_sec(pieces, tlv_data, IWL_UCODE_REGULAR,
844                                             tlv_len);
845                         drv->fw.type = IWL_FW_MVM;
846                         break;
847                 case IWL_UCODE_TLV_SECURE_SEC_INIT:
848                         iwl_store_ucode_sec(pieces, tlv_data, IWL_UCODE_INIT,
849                                             tlv_len);
850                         drv->fw.type = IWL_FW_MVM;
851                         break;
852                 case IWL_UCODE_TLV_SECURE_SEC_WOWLAN:
853                         iwl_store_ucode_sec(pieces, tlv_data, IWL_UCODE_WOWLAN,
854                                             tlv_len);
855                         drv->fw.type = IWL_FW_MVM;
856                         break;
857                 case IWL_UCODE_TLV_NUM_OF_CPU:
858                         if (tlv_len != sizeof(u32))
859                                 goto invalid_tlv_len;
860                         num_of_cpus =
861                                 le32_to_cpup((__le32 *)tlv_data);
862
863                         if (num_of_cpus == 2) {
864                                 drv->fw.img[IWL_UCODE_REGULAR].is_dual_cpus =
865                                         true;
866                                 drv->fw.img[IWL_UCODE_INIT].is_dual_cpus =
867                                         true;
868                                 drv->fw.img[IWL_UCODE_WOWLAN].is_dual_cpus =
869                                         true;
870                         } else if ((num_of_cpus > 2) || (num_of_cpus < 1)) {
871                                 IWL_ERR(drv, "Driver support upto 2 CPUs\n");
872                                 return -EINVAL;
873                         }
874                         break;
875                 case IWL_UCODE_TLV_CSCHEME:
876                         if (iwl_store_cscheme(&drv->fw, tlv_data, tlv_len))
877                                 goto invalid_tlv_len;
878                         break;
879                 case IWL_UCODE_TLV_N_SCAN_CHANNELS:
880                         if (tlv_len != sizeof(u32))
881                                 goto invalid_tlv_len;
882                         capa->n_scan_channels =
883                                 le32_to_cpup((__le32 *)tlv_data);
884                         break;
885                 case IWL_UCODE_TLV_FW_VERSION: {
886                         __le32 *ptr = (void *)tlv_data;
887                         u32 major, minor;
888                         u8 local_comp;
889
890                         if (tlv_len != sizeof(u32) * 3)
891                                 goto invalid_tlv_len;
892
893                         major = le32_to_cpup(ptr++);
894                         minor = le32_to_cpup(ptr++);
895                         local_comp = le32_to_cpup(ptr);
896
897                         if (major >= 35)
898                                 snprintf(drv->fw.fw_version,
899                                          sizeof(drv->fw.fw_version),
900                                         "%u.%08x.%u", major, minor, local_comp);
901                         else
902                                 snprintf(drv->fw.fw_version,
903                                          sizeof(drv->fw.fw_version),
904                                         "%u.%u.%u", major, minor, local_comp);
905                         break;
906                         }
907                 case IWL_UCODE_TLV_FW_DBG_DEST: {
908                         struct iwl_fw_dbg_dest_tlv *dest = NULL;
909                         struct iwl_fw_dbg_dest_tlv_v1 *dest_v1 = NULL;
910                         u8 mon_mode;
911
912                         pieces->dbg_dest_ver = (u8 *)tlv_data;
913                         if (*pieces->dbg_dest_ver == 1) {
914                                 dest = (void *)tlv_data;
915                         } else if (*pieces->dbg_dest_ver == 0) {
916                                 dest_v1 = (void *)tlv_data;
917                         } else {
918                                 IWL_ERR(drv,
919                                         "The version is %d, and it is invalid\n",
920                                         *pieces->dbg_dest_ver);
921                                 break;
922                         }
923
924                         if (pieces->dbg_dest_tlv_init) {
925                                 IWL_ERR(drv,
926                                         "dbg destination ignored, already exists\n");
927                                 break;
928                         }
929
930                         pieces->dbg_dest_tlv_init = true;
931
932                         if (dest_v1) {
933                                 pieces->dbg_dest_tlv_v1 = dest_v1;
934                                 mon_mode = dest_v1->monitor_mode;
935                         } else {
936                                 pieces->dbg_dest_tlv = dest;
937                                 mon_mode = dest->monitor_mode;
938                         }
939
940                         IWL_INFO(drv, "Found debug destination: %s\n",
941                                  get_fw_dbg_mode_string(mon_mode));
942
943                         drv->fw.dbg.n_dest_reg = (dest_v1) ?
944                                 tlv_len -
945                                 offsetof(struct iwl_fw_dbg_dest_tlv_v1,
946                                          reg_ops) :
947                                 tlv_len -
948                                 offsetof(struct iwl_fw_dbg_dest_tlv,
949                                          reg_ops);
950
951                         drv->fw.dbg.n_dest_reg /=
952                                 sizeof(drv->fw.dbg.dest_tlv->reg_ops[0]);
953
954                         break;
955                         }
956                 case IWL_UCODE_TLV_FW_DBG_CONF: {
957                         struct iwl_fw_dbg_conf_tlv *conf = (void *)tlv_data;
958
959                         if (!pieces->dbg_dest_tlv_init) {
960                                 IWL_ERR(drv,
961                                         "Ignore dbg config %d - no destination configured\n",
962                                         conf->id);
963                                 break;
964                         }
965
966                         if (conf->id >= ARRAY_SIZE(drv->fw.dbg.conf_tlv)) {
967                                 IWL_ERR(drv,
968                                         "Skip unknown configuration: %d\n",
969                                         conf->id);
970                                 break;
971                         }
972
973                         if (pieces->dbg_conf_tlv[conf->id]) {
974                                 IWL_ERR(drv,
975                                         "Ignore duplicate dbg config %d\n",
976                                         conf->id);
977                                 break;
978                         }
979
980                         if (conf->usniffer)
981                                 usniffer_req = true;
982
983                         IWL_INFO(drv, "Found debug configuration: %d\n",
984                                  conf->id);
985
986                         pieces->dbg_conf_tlv[conf->id] = conf;
987                         pieces->dbg_conf_tlv_len[conf->id] = tlv_len;
988                         break;
989                         }
990                 case IWL_UCODE_TLV_FW_DBG_TRIGGER: {
991                         struct iwl_fw_dbg_trigger_tlv *trigger =
992                                 (void *)tlv_data;
993                         u32 trigger_id = le32_to_cpu(trigger->id);
994
995                         if (trigger_id >= ARRAY_SIZE(drv->fw.dbg.trigger_tlv)) {
996                                 IWL_ERR(drv,
997                                         "Skip unknown trigger: %u\n",
998                                         trigger->id);
999                                 break;
1000                         }
1001
1002                         if (pieces->dbg_trigger_tlv[trigger_id]) {
1003                                 IWL_ERR(drv,
1004                                         "Ignore duplicate dbg trigger %u\n",
1005                                         trigger->id);
1006                                 break;
1007                         }
1008
1009                         IWL_INFO(drv, "Found debug trigger: %u\n", trigger->id);
1010
1011                         pieces->dbg_trigger_tlv[trigger_id] = trigger;
1012                         pieces->dbg_trigger_tlv_len[trigger_id] = tlv_len;
1013                         break;
1014                         }
1015                 case IWL_UCODE_TLV_FW_DBG_DUMP_LST: {
1016                         if (tlv_len != sizeof(u32)) {
1017                                 IWL_ERR(drv,
1018                                         "dbg lst mask size incorrect, skip\n");
1019                                 break;
1020                         }
1021
1022                         drv->fw.dbg.dump_mask =
1023                                 le32_to_cpup((__le32 *)tlv_data);
1024                         break;
1025                         }
1026                 case IWL_UCODE_TLV_SEC_RT_USNIFFER:
1027                         *usniffer_images = true;
1028                         iwl_store_ucode_sec(pieces, tlv_data,
1029                                             IWL_UCODE_REGULAR_USNIFFER,
1030                                             tlv_len);
1031                         break;
1032                 case IWL_UCODE_TLV_PAGING:
1033                         if (tlv_len != sizeof(u32))
1034                                 goto invalid_tlv_len;
1035                         paging_mem_size = le32_to_cpup((__le32 *)tlv_data);
1036
1037                         IWL_DEBUG_FW(drv,
1038                                      "Paging: paging enabled (size = %u bytes)\n",
1039                                      paging_mem_size);
1040
1041                         if (paging_mem_size > MAX_PAGING_IMAGE_SIZE) {
1042                                 IWL_ERR(drv,
1043                                         "Paging: driver supports up to %lu bytes for paging image\n",
1044                                         MAX_PAGING_IMAGE_SIZE);
1045                                 return -EINVAL;
1046                         }
1047
1048                         if (paging_mem_size & (FW_PAGING_SIZE - 1)) {
1049                                 IWL_ERR(drv,
1050                                         "Paging: image isn't multiple %lu\n",
1051                                         FW_PAGING_SIZE);
1052                                 return -EINVAL;
1053                         }
1054
1055                         drv->fw.img[IWL_UCODE_REGULAR].paging_mem_size =
1056                                 paging_mem_size;
1057                         usniffer_img = IWL_UCODE_REGULAR_USNIFFER;
1058                         drv->fw.img[usniffer_img].paging_mem_size =
1059                                 paging_mem_size;
1060                         break;
1061                 case IWL_UCODE_TLV_FW_GSCAN_CAPA:
1062                         /* ignored */
1063                         break;
1064                 case IWL_UCODE_TLV_FW_MEM_SEG: {
1065                         struct iwl_fw_dbg_mem_seg_tlv *dbg_mem =
1066                                 (void *)tlv_data;
1067                         size_t size;
1068                         struct iwl_fw_dbg_mem_seg_tlv *n;
1069
1070                         if (tlv_len != (sizeof(*dbg_mem)))
1071                                 goto invalid_tlv_len;
1072
1073                         IWL_DEBUG_INFO(drv, "Found debug memory segment: %u\n",
1074                                        dbg_mem->data_type);
1075
1076                         size = sizeof(*pieces->dbg_mem_tlv) *
1077                                (pieces->n_mem_tlv + 1);
1078                         n = krealloc(pieces->dbg_mem_tlv, size, GFP_KERNEL);
1079                         if (!n)
1080                                 return -ENOMEM;
1081                         pieces->dbg_mem_tlv = n;
1082                         pieces->dbg_mem_tlv[pieces->n_mem_tlv] = *dbg_mem;
1083                         pieces->n_mem_tlv++;
1084                         break;
1085                         }
1086                 case IWL_UCODE_TLV_IML: {
1087                         drv->fw.iml_len = tlv_len;
1088                         drv->fw.iml = kmemdup(tlv_data, tlv_len, GFP_KERNEL);
1089                         if (!drv->fw.iml)
1090                                 return -ENOMEM;
1091                         break;
1092                         }
1093                 case IWL_UCODE_TLV_FW_RECOVERY_INFO: {
1094                         struct {
1095                                 __le32 buf_addr;
1096                                 __le32 buf_size;
1097                         } *recov_info = (void *)tlv_data;
1098
1099                         if (tlv_len != sizeof(*recov_info))
1100                                 goto invalid_tlv_len;
1101                         capa->error_log_addr =
1102                                 le32_to_cpu(recov_info->buf_addr);
1103                         capa->error_log_size =
1104                                 le32_to_cpu(recov_info->buf_size);
1105                         }
1106                         break;
1107                 case IWL_UCODE_TLV_UMAC_DEBUG_ADDRS: {
1108                         struct iwl_umac_debug_addrs *dbg_ptrs =
1109                                 (void *)tlv_data;
1110
1111                         if (tlv_len != sizeof(*dbg_ptrs))
1112                                 goto invalid_tlv_len;
1113                         if (drv->trans->cfg->device_family <
1114                             IWL_DEVICE_FAMILY_22000)
1115                                 break;
1116                         drv->trans->umac_error_event_table =
1117                                 le32_to_cpu(dbg_ptrs->error_info_addr) &
1118                                 ~FW_ADDR_CACHE_CONTROL;
1119                         drv->trans->error_event_table_tlv_status |=
1120                                 IWL_ERROR_EVENT_TABLE_UMAC;
1121                         break;
1122                         }
1123                 case IWL_UCODE_TLV_LMAC_DEBUG_ADDRS: {
1124                         struct iwl_lmac_debug_addrs *dbg_ptrs =
1125                                 (void *)tlv_data;
1126
1127                         if (tlv_len != sizeof(*dbg_ptrs))
1128                                 goto invalid_tlv_len;
1129                         if (drv->trans->cfg->device_family <
1130                             IWL_DEVICE_FAMILY_22000)
1131                                 break;
1132                         drv->trans->lmac_error_event_table[0] =
1133                                 le32_to_cpu(dbg_ptrs->error_event_table_ptr) &
1134                                 ~FW_ADDR_CACHE_CONTROL;
1135                         drv->trans->error_event_table_tlv_status |=
1136                                 IWL_ERROR_EVENT_TABLE_LMAC1;
1137                         break;
1138                         }
1139                 case IWL_UCODE_TLV_TYPE_BUFFER_ALLOCATION:
1140                 case IWL_UCODE_TLV_TYPE_HCMD:
1141                 case IWL_UCODE_TLV_TYPE_REGIONS:
1142                 case IWL_UCODE_TLV_TYPE_TRIGGERS:
1143                 case IWL_UCODE_TLV_TYPE_DEBUG_FLOW:
1144                         if (iwlwifi_mod_params.enable_ini)
1145                                 iwl_fw_dbg_copy_tlv(drv->trans, tlv, false);
1146                         break;
1147                 default:
1148                         IWL_DEBUG_INFO(drv, "unknown TLV: %d\n", tlv_type);
1149                         break;
1150                 }
1151         }
1152
1153         if (!fw_has_capa(capa, IWL_UCODE_TLV_CAPA_USNIFFER_UNIFIED) &&
1154             usniffer_req && !*usniffer_images) {
1155                 IWL_ERR(drv,
1156                         "user selected to work with usniffer but usniffer image isn't available in ucode package\n");
1157                 return -EINVAL;
1158         }
1159
1160         if (len) {
1161                 IWL_ERR(drv, "invalid TLV after parsing: %zd\n", len);
1162                 iwl_print_hex_dump(drv, IWL_DL_FW, (u8 *)data, len);
1163                 return -EINVAL;
1164         }
1165
1166         return 0;
1167
1168  invalid_tlv_len:
1169         IWL_ERR(drv, "TLV %d has invalid size: %u\n", tlv_type, tlv_len);
1170  tlv_error:
1171         iwl_print_hex_dump(drv, IWL_DL_FW, tlv_data, tlv_len);
1172
1173         return -EINVAL;
1174 }
1175
1176 static int iwl_alloc_ucode(struct iwl_drv *drv,
1177                            struct iwl_firmware_pieces *pieces,
1178                            enum iwl_ucode_type type)
1179 {
1180         int i;
1181         struct fw_desc *sec;
1182
1183         sec = kcalloc(pieces->img[type].sec_counter, sizeof(*sec), GFP_KERNEL);
1184         if (!sec)
1185                 return -ENOMEM;
1186         drv->fw.img[type].sec = sec;
1187         drv->fw.img[type].num_sec = pieces->img[type].sec_counter;
1188
1189         for (i = 0; i < pieces->img[type].sec_counter; i++)
1190                 if (iwl_alloc_fw_desc(drv, &sec[i], get_sec(pieces, type, i)))
1191                         return -ENOMEM;
1192
1193         return 0;
1194 }
1195
1196 static int validate_sec_sizes(struct iwl_drv *drv,
1197                               struct iwl_firmware_pieces *pieces,
1198                               const struct iwl_cfg *cfg)
1199 {
1200         IWL_DEBUG_INFO(drv, "f/w package hdr runtime inst size = %zd\n",
1201                 get_sec_size(pieces, IWL_UCODE_REGULAR,
1202                              IWL_UCODE_SECTION_INST));
1203         IWL_DEBUG_INFO(drv, "f/w package hdr runtime data size = %zd\n",
1204                 get_sec_size(pieces, IWL_UCODE_REGULAR,
1205                              IWL_UCODE_SECTION_DATA));
1206         IWL_DEBUG_INFO(drv, "f/w package hdr init inst size = %zd\n",
1207                 get_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_INST));
1208         IWL_DEBUG_INFO(drv, "f/w package hdr init data size = %zd\n",
1209                 get_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_DATA));
1210
1211         /* Verify that uCode images will fit in card's SRAM. */
1212         if (get_sec_size(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_INST) >
1213             cfg->max_inst_size) {
1214                 IWL_ERR(drv, "uCode instr len %zd too large to fit in\n",
1215                         get_sec_size(pieces, IWL_UCODE_REGULAR,
1216                                      IWL_UCODE_SECTION_INST));
1217                 return -1;
1218         }
1219
1220         if (get_sec_size(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_DATA) >
1221             cfg->max_data_size) {
1222                 IWL_ERR(drv, "uCode data len %zd too large to fit in\n",
1223                         get_sec_size(pieces, IWL_UCODE_REGULAR,
1224                                      IWL_UCODE_SECTION_DATA));
1225                 return -1;
1226         }
1227
1228         if (get_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_INST) >
1229              cfg->max_inst_size) {
1230                 IWL_ERR(drv, "uCode init instr len %zd too large to fit in\n",
1231                         get_sec_size(pieces, IWL_UCODE_INIT,
1232                                      IWL_UCODE_SECTION_INST));
1233                 return -1;
1234         }
1235
1236         if (get_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_DATA) >
1237             cfg->max_data_size) {
1238                 IWL_ERR(drv, "uCode init data len %zd too large to fit in\n",
1239                         get_sec_size(pieces, IWL_UCODE_REGULAR,
1240                                      IWL_UCODE_SECTION_DATA));
1241                 return -1;
1242         }
1243         return 0;
1244 }
1245
1246 static struct iwl_op_mode *
1247 _iwl_op_mode_start(struct iwl_drv *drv, struct iwlwifi_opmode_table *op)
1248 {
1249         const struct iwl_op_mode_ops *ops = op->ops;
1250         struct dentry *dbgfs_dir = NULL;
1251         struct iwl_op_mode *op_mode = NULL;
1252
1253 #ifdef CONFIG_IWLWIFI_DEBUGFS
1254         drv->dbgfs_op_mode = debugfs_create_dir(op->name,
1255                                                 drv->dbgfs_drv);
1256         dbgfs_dir = drv->dbgfs_op_mode;
1257 #endif
1258
1259         op_mode = ops->start(drv->trans, drv->trans->cfg, &drv->fw, dbgfs_dir);
1260
1261 #ifdef CONFIG_IWLWIFI_DEBUGFS
1262         if (!op_mode) {
1263                 debugfs_remove_recursive(drv->dbgfs_op_mode);
1264                 drv->dbgfs_op_mode = NULL;
1265         }
1266 #endif
1267
1268         return op_mode;
1269 }
1270
1271 static void _iwl_op_mode_stop(struct iwl_drv *drv)
1272 {
1273         /* op_mode can be NULL if its start failed */
1274         if (drv->op_mode) {
1275                 iwl_op_mode_stop(drv->op_mode);
1276                 drv->op_mode = NULL;
1277
1278 #ifdef CONFIG_IWLWIFI_DEBUGFS
1279                 debugfs_remove_recursive(drv->dbgfs_op_mode);
1280                 drv->dbgfs_op_mode = NULL;
1281 #endif
1282         }
1283 }
1284
1285 /**
1286  * iwl_req_fw_callback - callback when firmware was loaded
1287  *
1288  * If loaded successfully, copies the firmware into buffers
1289  * for the card to fetch (via DMA).
1290  */
1291 static void iwl_req_fw_callback(const struct firmware *ucode_raw, void *context)
1292 {
1293         struct iwl_drv *drv = context;
1294         struct iwl_fw *fw = &drv->fw;
1295         struct iwl_ucode_header *ucode;
1296         struct iwlwifi_opmode_table *op;
1297         int err;
1298         struct iwl_firmware_pieces *pieces;
1299         const unsigned int api_max = drv->trans->cfg->ucode_api_max;
1300         const unsigned int api_min = drv->trans->cfg->ucode_api_min;
1301         size_t trigger_tlv_sz[FW_DBG_TRIGGER_MAX];
1302         u32 api_ver;
1303         int i;
1304         bool load_module = false;
1305         bool usniffer_images = false;
1306
1307         fw->ucode_capa.max_probe_length = IWL_DEFAULT_MAX_PROBE_LENGTH;
1308         fw->ucode_capa.standard_phy_calibration_size =
1309                         IWL_DEFAULT_STANDARD_PHY_CALIBRATE_TBL_SIZE;
1310         fw->ucode_capa.n_scan_channels = IWL_DEFAULT_SCAN_CHANNELS;
1311         /* dump all fw memory areas by default */
1312         fw->dbg.dump_mask = 0xffffffff;
1313
1314         pieces = kzalloc(sizeof(*pieces), GFP_KERNEL);
1315         if (!pieces)
1316                 goto out_free_fw;
1317
1318         if (!ucode_raw)
1319                 goto try_again;
1320
1321         IWL_DEBUG_INFO(drv, "Loaded firmware file '%s' (%zd bytes).\n",
1322                        drv->firmware_name, ucode_raw->size);
1323
1324         /* Make sure that we got at least the API version number */
1325         if (ucode_raw->size < 4) {
1326                 IWL_ERR(drv, "File size way too small!\n");
1327                 goto try_again;
1328         }
1329
1330         /* Data from ucode file:  header followed by uCode images */
1331         ucode = (struct iwl_ucode_header *)ucode_raw->data;
1332
1333         if (ucode->ver)
1334                 err = iwl_parse_v1_v2_firmware(drv, ucode_raw, pieces);
1335         else
1336                 err = iwl_parse_tlv_firmware(drv, ucode_raw, pieces,
1337                                              &fw->ucode_capa, &usniffer_images);
1338
1339         if (err)
1340                 goto try_again;
1341
1342         if (fw_has_api(&drv->fw.ucode_capa, IWL_UCODE_TLV_API_NEW_VERSION))
1343                 api_ver = drv->fw.ucode_ver;
1344         else
1345                 api_ver = IWL_UCODE_API(drv->fw.ucode_ver);
1346
1347         /*
1348          * api_ver should match the api version forming part of the
1349          * firmware filename ... but we don't check for that and only rely
1350          * on the API version read from firmware header from here on forward
1351          */
1352         if (api_ver < api_min || api_ver > api_max) {
1353                 IWL_ERR(drv,
1354                         "Driver unable to support your firmware API. "
1355                         "Driver supports v%u, firmware is v%u.\n",
1356                         api_max, api_ver);
1357                 goto try_again;
1358         }
1359
1360         /*
1361          * In mvm uCode there is no difference between data and instructions
1362          * sections.
1363          */
1364         if (fw->type == IWL_FW_DVM && validate_sec_sizes(drv, pieces,
1365                                                          drv->trans->cfg))
1366                 goto try_again;
1367
1368         /* Allocate ucode buffers for card's bus-master loading ... */
1369
1370         /* Runtime instructions and 2 copies of data:
1371          * 1) unmodified from disk
1372          * 2) backup cache for save/restore during power-downs
1373          */
1374         for (i = 0; i < IWL_UCODE_TYPE_MAX; i++)
1375                 if (iwl_alloc_ucode(drv, pieces, i))
1376                         goto out_free_fw;
1377
1378         if (pieces->dbg_dest_tlv_init) {
1379                 size_t dbg_dest_size = sizeof(*drv->fw.dbg.dest_tlv) +
1380                         sizeof(drv->fw.dbg.dest_tlv->reg_ops[0]) *
1381                         drv->fw.dbg.n_dest_reg;
1382
1383                 drv->fw.dbg.dest_tlv = kmalloc(dbg_dest_size, GFP_KERNEL);
1384
1385                 if (!drv->fw.dbg.dest_tlv)
1386                         goto out_free_fw;
1387
1388                 if (*pieces->dbg_dest_ver == 0) {
1389                         memcpy(drv->fw.dbg.dest_tlv, pieces->dbg_dest_tlv_v1,
1390                                dbg_dest_size);
1391                 } else {
1392                         struct iwl_fw_dbg_dest_tlv_v1 *dest_tlv =
1393                                 drv->fw.dbg.dest_tlv;
1394
1395                         dest_tlv->version = pieces->dbg_dest_tlv->version;
1396                         dest_tlv->monitor_mode =
1397                                 pieces->dbg_dest_tlv->monitor_mode;
1398                         dest_tlv->size_power =
1399                                 pieces->dbg_dest_tlv->size_power;
1400                         dest_tlv->wrap_count =
1401                                 pieces->dbg_dest_tlv->wrap_count;
1402                         dest_tlv->write_ptr_reg =
1403                                 pieces->dbg_dest_tlv->write_ptr_reg;
1404                         dest_tlv->base_shift =
1405                                 pieces->dbg_dest_tlv->base_shift;
1406                         memcpy(dest_tlv->reg_ops,
1407                                pieces->dbg_dest_tlv->reg_ops,
1408                                sizeof(drv->fw.dbg.dest_tlv->reg_ops[0]) *
1409                                drv->fw.dbg.n_dest_reg);
1410
1411                         /* In version 1 of the destination tlv, which is
1412                          * relevant for internal buffer exclusively,
1413                          * the base address is part of given with the length
1414                          * of the buffer, and the size shift is give instead of
1415                          * end shift. We now store these values in base_reg,
1416                          * and end shift, and when dumping the data we'll
1417                          * manipulate it for extracting both the length and
1418                          * base address */
1419                         dest_tlv->base_reg = pieces->dbg_dest_tlv->cfg_reg;
1420                         dest_tlv->end_shift =
1421                                 pieces->dbg_dest_tlv->size_shift;
1422                 }
1423         }
1424
1425         for (i = 0; i < ARRAY_SIZE(drv->fw.dbg.conf_tlv); i++) {
1426                 if (pieces->dbg_conf_tlv[i]) {
1427                         drv->fw.dbg.conf_tlv[i] =
1428                                 kmemdup(pieces->dbg_conf_tlv[i],
1429                                         pieces->dbg_conf_tlv_len[i],
1430                                         GFP_KERNEL);
1431                         if (!pieces->dbg_conf_tlv_len[i])
1432                                 goto out_free_fw;
1433                 }
1434         }
1435
1436         memset(&trigger_tlv_sz, 0xff, sizeof(trigger_tlv_sz));
1437
1438         trigger_tlv_sz[FW_DBG_TRIGGER_MISSED_BEACONS] =
1439                 sizeof(struct iwl_fw_dbg_trigger_missed_bcon);
1440         trigger_tlv_sz[FW_DBG_TRIGGER_CHANNEL_SWITCH] = 0;
1441         trigger_tlv_sz[FW_DBG_TRIGGER_FW_NOTIF] =
1442                 sizeof(struct iwl_fw_dbg_trigger_cmd);
1443         trigger_tlv_sz[FW_DBG_TRIGGER_MLME] =
1444                 sizeof(struct iwl_fw_dbg_trigger_mlme);
1445         trigger_tlv_sz[FW_DBG_TRIGGER_STATS] =
1446                 sizeof(struct iwl_fw_dbg_trigger_stats);
1447         trigger_tlv_sz[FW_DBG_TRIGGER_RSSI] =
1448                 sizeof(struct iwl_fw_dbg_trigger_low_rssi);
1449         trigger_tlv_sz[FW_DBG_TRIGGER_TXQ_TIMERS] =
1450                 sizeof(struct iwl_fw_dbg_trigger_txq_timer);
1451         trigger_tlv_sz[FW_DBG_TRIGGER_TIME_EVENT] =
1452                 sizeof(struct iwl_fw_dbg_trigger_time_event);
1453         trigger_tlv_sz[FW_DBG_TRIGGER_BA] =
1454                 sizeof(struct iwl_fw_dbg_trigger_ba);
1455         trigger_tlv_sz[FW_DBG_TRIGGER_TDLS] =
1456                 sizeof(struct iwl_fw_dbg_trigger_tdls);
1457
1458         for (i = 0; i < ARRAY_SIZE(drv->fw.dbg.trigger_tlv); i++) {
1459                 if (pieces->dbg_trigger_tlv[i]) {
1460                         /*
1461                          * If the trigger isn't long enough, WARN and exit.
1462                          * Someone is trying to debug something and he won't
1463                          * be able to catch the bug he is trying to chase.
1464                          * We'd better be noisy to be sure he knows what's
1465                          * going on.
1466                          */
1467                         if (WARN_ON(pieces->dbg_trigger_tlv_len[i] <
1468                                     (trigger_tlv_sz[i] +
1469                                      sizeof(struct iwl_fw_dbg_trigger_tlv))))
1470                                 goto out_free_fw;
1471                         drv->fw.dbg.trigger_tlv_len[i] =
1472                                 pieces->dbg_trigger_tlv_len[i];
1473                         drv->fw.dbg.trigger_tlv[i] =
1474                                 kmemdup(pieces->dbg_trigger_tlv[i],
1475                                         drv->fw.dbg.trigger_tlv_len[i],
1476                                         GFP_KERNEL);
1477                         if (!drv->fw.dbg.trigger_tlv[i])
1478                                 goto out_free_fw;
1479                 }
1480         }
1481
1482         /* Now that we can no longer fail, copy information */
1483
1484         drv->fw.dbg.mem_tlv = pieces->dbg_mem_tlv;
1485         pieces->dbg_mem_tlv = NULL;
1486         drv->fw.dbg.n_mem_tlv = pieces->n_mem_tlv;
1487
1488         /*
1489          * The (size - 16) / 12 formula is based on the information recorded
1490          * for each event, which is of mode 1 (including timestamp) for all
1491          * new microcodes that include this information.
1492          */
1493         fw->init_evtlog_ptr = pieces->init_evtlog_ptr;
1494         if (pieces->init_evtlog_size)
1495                 fw->init_evtlog_size = (pieces->init_evtlog_size - 16)/12;
1496         else
1497                 fw->init_evtlog_size =
1498                         drv->trans->cfg->base_params->max_event_log_size;
1499         fw->init_errlog_ptr = pieces->init_errlog_ptr;
1500         fw->inst_evtlog_ptr = pieces->inst_evtlog_ptr;
1501         if (pieces->inst_evtlog_size)
1502                 fw->inst_evtlog_size = (pieces->inst_evtlog_size - 16)/12;
1503         else
1504                 fw->inst_evtlog_size =
1505                         drv->trans->cfg->base_params->max_event_log_size;
1506         fw->inst_errlog_ptr = pieces->inst_errlog_ptr;
1507
1508         /*
1509          * figure out the offset of chain noise reset and gain commands
1510          * base on the size of standard phy calibration commands table size
1511          */
1512         if (fw->ucode_capa.standard_phy_calibration_size >
1513             IWL_MAX_PHY_CALIBRATE_TBL_SIZE)
1514                 fw->ucode_capa.standard_phy_calibration_size =
1515                         IWL_MAX_STANDARD_PHY_CALIBRATE_TBL_SIZE;
1516
1517         /* We have our copies now, allow OS release its copies */
1518         release_firmware(ucode_raw);
1519
1520         mutex_lock(&iwlwifi_opmode_table_mtx);
1521         switch (fw->type) {
1522         case IWL_FW_DVM:
1523                 op = &iwlwifi_opmode_table[DVM_OP_MODE];
1524                 break;
1525         default:
1526                 WARN(1, "Invalid fw type %d\n", fw->type);
1527                 /* fall through */
1528         case IWL_FW_MVM:
1529                 op = &iwlwifi_opmode_table[MVM_OP_MODE];
1530                 break;
1531         }
1532
1533         IWL_INFO(drv, "loaded firmware version %s op_mode %s\n",
1534                  drv->fw.fw_version, op->name);
1535
1536         /* add this device to the list of devices using this op_mode */
1537         list_add_tail(&drv->list, &op->drv);
1538
1539         if (op->ops) {
1540                 drv->op_mode = _iwl_op_mode_start(drv, op);
1541
1542                 if (!drv->op_mode) {
1543                         mutex_unlock(&iwlwifi_opmode_table_mtx);
1544                         goto out_unbind;
1545                 }
1546         } else {
1547                 load_module = true;
1548         }
1549         mutex_unlock(&iwlwifi_opmode_table_mtx);
1550
1551         /*
1552          * Complete the firmware request last so that
1553          * a driver unbind (stop) doesn't run while we
1554          * are doing the start() above.
1555          */
1556         complete(&drv->request_firmware_complete);
1557
1558         /*
1559          * Load the module last so we don't block anything
1560          * else from proceeding if the module fails to load
1561          * or hangs loading.
1562          */
1563         if (load_module) {
1564                 request_module("%s", op->name);
1565 #ifdef CONFIG_IWLWIFI_OPMODE_MODULAR
1566                 if (err)
1567                         IWL_ERR(drv,
1568                                 "failed to load module %s (error %d), is dynamic loading enabled?\n",
1569                                 op->name, err);
1570 #endif
1571         }
1572         goto free;
1573
1574  try_again:
1575         /* try next, if any */
1576         release_firmware(ucode_raw);
1577         if (iwl_request_firmware(drv, false))
1578                 goto out_unbind;
1579         goto free;
1580
1581  out_free_fw:
1582         iwl_dealloc_ucode(drv);
1583         release_firmware(ucode_raw);
1584  out_unbind:
1585         complete(&drv->request_firmware_complete);
1586         device_release_driver(drv->trans->dev);
1587  free:
1588         if (pieces) {
1589                 for (i = 0; i < ARRAY_SIZE(pieces->img); i++)
1590                         kfree(pieces->img[i].sec);
1591                 kfree(pieces->dbg_mem_tlv);
1592                 kfree(pieces);
1593         }
1594 }
1595
1596 struct iwl_drv *iwl_drv_start(struct iwl_trans *trans)
1597 {
1598         struct iwl_drv *drv;
1599         int ret;
1600
1601         drv = kzalloc(sizeof(*drv), GFP_KERNEL);
1602         if (!drv) {
1603                 ret = -ENOMEM;
1604                 goto err;
1605         }
1606
1607         drv->trans = trans;
1608         drv->dev = trans->dev;
1609
1610         init_completion(&drv->request_firmware_complete);
1611         INIT_LIST_HEAD(&drv->list);
1612
1613 #ifdef CONFIG_IWLWIFI_DEBUGFS
1614         /* Create the device debugfs entries. */
1615         drv->dbgfs_drv = debugfs_create_dir(dev_name(trans->dev),
1616                                             iwl_dbgfs_root);
1617
1618         /* Create transport layer debugfs dir */
1619         drv->trans->dbgfs_dir = debugfs_create_dir("trans", drv->dbgfs_drv);
1620 #endif
1621
1622         ret = iwl_request_firmware(drv, true);
1623         if (ret) {
1624                 IWL_ERR(trans, "Couldn't request the fw\n");
1625                 goto err_fw;
1626         }
1627
1628         return drv;
1629
1630 err_fw:
1631 #ifdef CONFIG_IWLWIFI_DEBUGFS
1632         debugfs_remove_recursive(drv->dbgfs_drv);
1633         iwl_fw_dbg_free(drv->trans);
1634 #endif
1635         kfree(drv);
1636 err:
1637         return ERR_PTR(ret);
1638 }
1639
1640 void iwl_drv_stop(struct iwl_drv *drv)
1641 {
1642         wait_for_completion(&drv->request_firmware_complete);
1643
1644         _iwl_op_mode_stop(drv);
1645
1646         iwl_dealloc_ucode(drv);
1647
1648         mutex_lock(&iwlwifi_opmode_table_mtx);
1649         /*
1650          * List is empty (this item wasn't added)
1651          * when firmware loading failed -- in that
1652          * case we can't remove it from any list.
1653          */
1654         if (!list_empty(&drv->list))
1655                 list_del(&drv->list);
1656         mutex_unlock(&iwlwifi_opmode_table_mtx);
1657
1658 #ifdef CONFIG_IWLWIFI_DEBUGFS
1659         drv->trans->ops->debugfs_cleanup(drv->trans);
1660
1661         debugfs_remove_recursive(drv->dbgfs_drv);
1662 #endif
1663
1664         iwl_fw_dbg_free(drv->trans);
1665
1666         kfree(drv);
1667 }
1668
1669
1670 /* shared module parameters */
1671 struct iwl_mod_params iwlwifi_mod_params = {
1672         .fw_restart = true,
1673         .bt_coex_active = true,
1674         .power_level = IWL_POWER_INDEX_1,
1675         .d0i3_disable = true,
1676         .d0i3_timeout = 1000,
1677         .uapsd_disable = IWL_DISABLE_UAPSD_BSS | IWL_DISABLE_UAPSD_P2P_CLIENT,
1678         /* the rest are 0 by default */
1679 };
1680 IWL_EXPORT_SYMBOL(iwlwifi_mod_params);
1681
1682 int iwl_opmode_register(const char *name, const struct iwl_op_mode_ops *ops)
1683 {
1684         int i;
1685         struct iwl_drv *drv;
1686         struct iwlwifi_opmode_table *op;
1687
1688         mutex_lock(&iwlwifi_opmode_table_mtx);
1689         for (i = 0; i < ARRAY_SIZE(iwlwifi_opmode_table); i++) {
1690                 op = &iwlwifi_opmode_table[i];
1691                 if (strcmp(op->name, name))
1692                         continue;
1693                 op->ops = ops;
1694                 /* TODO: need to handle exceptional case */
1695                 list_for_each_entry(drv, &op->drv, list)
1696                         drv->op_mode = _iwl_op_mode_start(drv, op);
1697
1698                 mutex_unlock(&iwlwifi_opmode_table_mtx);
1699                 return 0;
1700         }
1701         mutex_unlock(&iwlwifi_opmode_table_mtx);
1702         return -EIO;
1703 }
1704 IWL_EXPORT_SYMBOL(iwl_opmode_register);
1705
1706 void iwl_opmode_deregister(const char *name)
1707 {
1708         int i;
1709         struct iwl_drv *drv;
1710
1711         mutex_lock(&iwlwifi_opmode_table_mtx);
1712         for (i = 0; i < ARRAY_SIZE(iwlwifi_opmode_table); i++) {
1713                 if (strcmp(iwlwifi_opmode_table[i].name, name))
1714                         continue;
1715                 iwlwifi_opmode_table[i].ops = NULL;
1716
1717                 /* call the stop routine for all devices */
1718                 list_for_each_entry(drv, &iwlwifi_opmode_table[i].drv, list)
1719                         _iwl_op_mode_stop(drv);
1720
1721                 mutex_unlock(&iwlwifi_opmode_table_mtx);
1722                 return;
1723         }
1724         mutex_unlock(&iwlwifi_opmode_table_mtx);
1725 }
1726 IWL_EXPORT_SYMBOL(iwl_opmode_deregister);
1727
1728 static int __init iwl_drv_init(void)
1729 {
1730         int i;
1731
1732         mutex_init(&iwlwifi_opmode_table_mtx);
1733
1734         for (i = 0; i < ARRAY_SIZE(iwlwifi_opmode_table); i++)
1735                 INIT_LIST_HEAD(&iwlwifi_opmode_table[i].drv);
1736
1737         pr_info(DRV_DESCRIPTION "\n");
1738         pr_info(DRV_COPYRIGHT "\n");
1739
1740 #ifdef CONFIG_IWLWIFI_DEBUGFS
1741         /* Create the root of iwlwifi debugfs subsystem. */
1742         iwl_dbgfs_root = debugfs_create_dir(DRV_NAME, NULL);
1743 #endif
1744
1745         return iwl_pci_register_driver();
1746 }
1747 module_init(iwl_drv_init);
1748
1749 static void __exit iwl_drv_exit(void)
1750 {
1751         iwl_pci_unregister_driver();
1752
1753 #ifdef CONFIG_IWLWIFI_DEBUGFS
1754         debugfs_remove_recursive(iwl_dbgfs_root);
1755 #endif
1756 }
1757 module_exit(iwl_drv_exit);
1758
1759 #ifdef CONFIG_IWLWIFI_DEBUG
1760 module_param_named(debug, iwlwifi_mod_params.debug_level, uint, 0644);
1761 MODULE_PARM_DESC(debug, "debug output mask");
1762 #endif
1763
1764 module_param_named(swcrypto, iwlwifi_mod_params.swcrypto, int, 0444);
1765 MODULE_PARM_DESC(swcrypto, "using crypto in software (default 0 [hardware])");
1766 module_param_named(11n_disable, iwlwifi_mod_params.disable_11n, uint, 0444);
1767 MODULE_PARM_DESC(11n_disable,
1768         "disable 11n functionality, bitmap: 1: full, 2: disable agg TX, 4: disable agg RX, 8 enable agg TX");
1769 module_param_named(amsdu_size, iwlwifi_mod_params.amsdu_size, int, 0444);
1770 MODULE_PARM_DESC(amsdu_size,
1771                  "amsdu size 0: 12K for multi Rx queue devices, 2K for 22560 devices, "
1772                  "4K for other devices 1:4K 2:8K 3:12K 4: 2K (default 0)");
1773 module_param_named(fw_restart, iwlwifi_mod_params.fw_restart, bool, 0444);
1774 MODULE_PARM_DESC(fw_restart, "restart firmware in case of error (default true)");
1775
1776 module_param_named(antenna_coupling, iwlwifi_mod_params.antenna_coupling,
1777                    int, 0444);
1778 MODULE_PARM_DESC(antenna_coupling,
1779                  "specify antenna coupling in dB (default: 0 dB)");
1780
1781 module_param_named(nvm_file, iwlwifi_mod_params.nvm_file, charp, 0444);
1782 MODULE_PARM_DESC(nvm_file, "NVM file name");
1783
1784 module_param_named(d0i3_disable, iwlwifi_mod_params.d0i3_disable, bool, 0444);
1785 MODULE_PARM_DESC(d0i3_disable, "disable d0i3 functionality (default: Y)");
1786
1787 module_param_named(lar_disable, iwlwifi_mod_params.lar_disable, bool, 0444);
1788 MODULE_PARM_DESC(lar_disable, "disable LAR functionality (default: N)");
1789
1790 module_param_named(uapsd_disable, iwlwifi_mod_params.uapsd_disable, uint, 0644);
1791 MODULE_PARM_DESC(uapsd_disable,
1792                  "disable U-APSD functionality bitmap 1: BSS 2: P2P Client (default: 3)");
1793 module_param_named(enable_ini, iwlwifi_mod_params.enable_ini,
1794                    bool, S_IRUGO | S_IWUSR);
1795 MODULE_PARM_DESC(enable_ini,
1796                  "Enable debug INI TLV FW debug infrastructure (default: 0");
1797
1798 /*
1799  * set bt_coex_active to true, uCode will do kill/defer
1800  * every time the priority line is asserted (BT is sending signals on the
1801  * priority line in the PCIx).
1802  * set bt_coex_active to false, uCode will ignore the BT activity and
1803  * perform the normal operation
1804  *
1805  * User might experience transmit issue on some platform due to WiFi/BT
1806  * co-exist problem. The possible behaviors are:
1807  *   Able to scan and finding all the available AP
1808  *   Not able to associate with any AP
1809  * On those platforms, WiFi communication can be restored by set
1810  * "bt_coex_active" module parameter to "false"
1811  *
1812  * default: bt_coex_active = true (BT_COEX_ENABLE)
1813  */
1814 module_param_named(bt_coex_active, iwlwifi_mod_params.bt_coex_active,
1815                    bool, 0444);
1816 MODULE_PARM_DESC(bt_coex_active, "enable wifi/bt co-exist (default: enable)");
1817
1818 module_param_named(led_mode, iwlwifi_mod_params.led_mode, int, 0444);
1819 MODULE_PARM_DESC(led_mode, "0=system default, "
1820                 "1=On(RF On)/Off(RF Off), 2=blinking, 3=Off (default: 0)");
1821
1822 module_param_named(power_save, iwlwifi_mod_params.power_save, bool, 0444);
1823 MODULE_PARM_DESC(power_save,
1824                  "enable WiFi power management (default: disable)");
1825
1826 module_param_named(power_level, iwlwifi_mod_params.power_level, int, 0444);
1827 MODULE_PARM_DESC(power_level,
1828                  "default power save level (range from 1 - 5, default: 1)");
1829
1830 module_param_named(fw_monitor, iwlwifi_mod_params.fw_monitor, bool, 0444);
1831 MODULE_PARM_DESC(fw_monitor,
1832                  "firmware monitor - to debug FW (default: false - needs lots of memory)");
1833
1834 module_param_named(d0i3_timeout, iwlwifi_mod_params.d0i3_timeout, uint, 0444);
1835 MODULE_PARM_DESC(d0i3_timeout, "Timeout to D0i3 entry when idle (ms)");
1836
1837 module_param_named(disable_11ac, iwlwifi_mod_params.disable_11ac, bool, 0444);
1838 MODULE_PARM_DESC(disable_11ac, "Disable VHT capabilities (default: false)");
1839
1840 module_param_named(remove_when_gone,
1841                    iwlwifi_mod_params.remove_when_gone, bool,
1842                    0444);
1843 MODULE_PARM_DESC(remove_when_gone,
1844                  "Remove dev from PCIe bus if it is deemed inaccessible (default: false)");
1845
1846 module_param_named(disable_11ax, iwlwifi_mod_params.disable_11ax, bool,
1847                    S_IRUGO);
1848 MODULE_PARM_DESC(disable_11ax, "Disable HE capabilities (default: false)");