1 // SPDX-License-Identifier: GPL-2.0 OR BSD-3-Clause
2 /*
3 * Copyright (C) 2005-2014, 2018-2021 Intel Corporation
4 * Copyright (C) 2013-2015 Intel Mobile Communications GmbH
5 * Copyright (C) 2016-2017 Intel Deutschland GmbH
6 */
7 #include <linux/completion.h>
8 #include <linux/dma-mapping.h>
9 #include <linux/firmware.h>
10 #include <linux/module.h>
11 #include <linux/vmalloc.h>
12
13 #include "iwl-drv.h"
14 #include "iwl-csr.h"
15 #include "iwl-debug.h"
16 #include "iwl-trans.h"
17 #include "iwl-op-mode.h"
18 #include "iwl-agn-hw.h"
19 #include "fw/img.h"
20 #include "iwl-dbg-tlv.h"
21 #include "iwl-config.h"
22 #include "iwl-modparams.h"
23 #include "fw/api/alive.h"
24 #include "fw/api/mac.h"
25
26 /******************************************************************************
27 *
28 * module boiler plate
29 *
30 ******************************************************************************/
31
32 #define DRV_DESCRIPTION "Intel(R) Wireless WiFi driver for Linux"
33 MODULE_DESCRIPTION(DRV_DESCRIPTION);
34 MODULE_AUTHOR(DRV_AUTHOR);
35 MODULE_LICENSE("GPL");
36
37 #ifdef CONFIG_IWLWIFI_DEBUGFS
38 static struct dentry *iwl_dbgfs_root;
39 #endif
40
41 /**
42 * struct iwl_drv - drv common data
43 * @list: list of drv structures using this opmode
44 * @fw: the iwl_fw structure
45 * @op_mode: the running op_mode
46 * @trans: transport layer
47 * @dev: for debug prints only
48 * @fw_index: firmware revision to try loading
49 * @firmware_name: composite filename of ucode file to load
50 * @request_firmware_complete: the firmware has been obtained from user space
51 * @dbgfs_drv: debugfs root directory entry
52 * @dbgfs_trans: debugfs transport directory entry
53 * @dbgfs_op_mode: debugfs op_mode directory entry
54 */
55 struct iwl_drv {
56 struct list_head list;
57 struct iwl_fw fw;
58
59 struct iwl_op_mode *op_mode;
60 struct iwl_trans *trans;
61 struct device *dev;
62
63 int fw_index; /* firmware we're trying to load */
64 char firmware_name[64]; /* name of firmware file to load */
65
66 struct completion request_firmware_complete;
67
68 #ifdef CONFIG_IWLWIFI_DEBUGFS
69 struct dentry *dbgfs_drv;
70 struct dentry *dbgfs_trans;
71 struct dentry *dbgfs_op_mode;
72 #endif
73 };
74
75 enum {
76 DVM_OP_MODE,
77 MVM_OP_MODE,
78 };
79
80 /* Protects the table contents, i.e. the ops pointer & drv list */
81 static struct mutex iwlwifi_opmode_table_mtx;
82 static struct iwlwifi_opmode_table {
83 const char *name; /* name: iwldvm, iwlmvm, etc */
84 const struct iwl_op_mode_ops *ops; /* pointer to op_mode ops */
85 struct list_head drv; /* list of devices using this op_mode */
86 } iwlwifi_opmode_table[] = { /* ops set when driver is initialized */
87 [DVM_OP_MODE] = { .name = "iwldvm", .ops = NULL },
88 [MVM_OP_MODE] = { .name = "iwlmvm", .ops = NULL },
89 };
90
91 #define IWL_DEFAULT_SCAN_CHANNELS 40
92
93 /*
94 * struct fw_sec: Just for the image parsing process.
95 * For the fw storage we are using struct fw_desc.
96 */
97 struct fw_sec {
98 const void *data; /* the sec data */
99 size_t size; /* section size */
100 u32 offset; /* offset of writing in the device */
101 };
102
iwl_free_fw_desc(struct iwl_drv * drv,struct fw_desc * desc)103 static void iwl_free_fw_desc(struct iwl_drv *drv, struct fw_desc *desc)
104 {
105 vfree(desc->data);
106 desc->data = NULL;
107 desc->len = 0;
108 }
109
iwl_free_fw_img(struct iwl_drv * drv,struct fw_img * img)110 static void iwl_free_fw_img(struct iwl_drv *drv, struct fw_img *img)
111 {
112 int i;
113 for (i = 0; i < img->num_sec; i++)
114 iwl_free_fw_desc(drv, &img->sec[i]);
115 kfree(img->sec);
116 }
117
iwl_dealloc_ucode(struct iwl_drv * drv)118 static void iwl_dealloc_ucode(struct iwl_drv *drv)
119 {
120 int i;
121
122 kfree(drv->fw.dbg.dest_tlv);
123 for (i = 0; i < ARRAY_SIZE(drv->fw.dbg.conf_tlv); i++)
124 kfree(drv->fw.dbg.conf_tlv[i]);
125 for (i = 0; i < ARRAY_SIZE(drv->fw.dbg.trigger_tlv); i++)
126 kfree(drv->fw.dbg.trigger_tlv[i]);
127 kfree(drv->fw.dbg.mem_tlv);
128 kfree(drv->fw.iml);
129 kfree(drv->fw.ucode_capa.cmd_versions);
130 kfree(drv->fw.phy_integration_ver);
131
132 for (i = 0; i < IWL_UCODE_TYPE_MAX; i++)
133 iwl_free_fw_img(drv, drv->fw.img + i);
134 }
135
iwl_alloc_fw_desc(struct iwl_drv * drv,struct fw_desc * desc,struct fw_sec * sec)136 static int iwl_alloc_fw_desc(struct iwl_drv *drv, struct fw_desc *desc,
137 struct fw_sec *sec)
138 {
139 void *data;
140
141 desc->data = NULL;
142
143 if (!sec || !sec->size)
144 return -EINVAL;
145
146 data = vmalloc(sec->size);
147 if (!data)
148 return -ENOMEM;
149
150 desc->len = sec->size;
151 desc->offset = sec->offset;
152 memcpy(data, sec->data, desc->len);
153 desc->data = data;
154
155 return 0;
156 }
157
158 static void iwl_req_fw_callback(const struct firmware *ucode_raw,
159 void *context);
160
iwl_request_firmware(struct iwl_drv * drv,bool first)161 static int iwl_request_firmware(struct iwl_drv *drv, bool first)
162 {
163 const struct iwl_cfg *cfg = drv->trans->cfg;
164 char tag[8];
165
166 if (drv->trans->trans_cfg->device_family == IWL_DEVICE_FAMILY_9000 &&
167 (CSR_HW_REV_STEP(drv->trans->hw_rev) != SILICON_B_STEP &&
168 CSR_HW_REV_STEP(drv->trans->hw_rev) != SILICON_C_STEP)) {
169 IWL_ERR(drv,
170 "Only HW steps B and C are currently supported (0x%0x)\n",
171 drv->trans->hw_rev);
172 return -EINVAL;
173 }
174
175 if (first) {
176 drv->fw_index = cfg->ucode_api_max;
177 sprintf(tag, "%d", drv->fw_index);
178 } else {
179 drv->fw_index--;
180 sprintf(tag, "%d", drv->fw_index);
181 }
182
183 if (drv->fw_index < cfg->ucode_api_min) {
184 IWL_ERR(drv, "no suitable firmware found!\n");
185
186 if (cfg->ucode_api_min == cfg->ucode_api_max) {
187 IWL_ERR(drv, "%s%d is required\n", cfg->fw_name_pre,
188 cfg->ucode_api_max);
189 } else {
190 IWL_ERR(drv, "minimum version required: %s%d\n",
191 cfg->fw_name_pre, cfg->ucode_api_min);
192 IWL_ERR(drv, "maximum version supported: %s%d\n",
193 cfg->fw_name_pre, cfg->ucode_api_max);
194 }
195
196 IWL_ERR(drv,
197 "check git://git.kernel.org/pub/scm/linux/kernel/git/firmware/linux-firmware.git\n");
198 return -ENOENT;
199 }
200
201 snprintf(drv->firmware_name, sizeof(drv->firmware_name), "%s%s.ucode",
202 cfg->fw_name_pre, tag);
203
204 IWL_DEBUG_FW_INFO(drv, "attempting to load firmware '%s'\n",
205 drv->firmware_name);
206
207 return request_firmware_nowait(THIS_MODULE, 1, drv->firmware_name,
208 drv->trans->dev,
209 GFP_KERNEL, drv, iwl_req_fw_callback);
210 }
211
212 struct fw_img_parsing {
213 struct fw_sec *sec;
214 int sec_counter;
215 };
216
217 /*
218 * struct fw_sec_parsing: to extract fw section and it's offset from tlv
219 */
220 struct fw_sec_parsing {
221 __le32 offset;
222 const u8 data[];
223 } __packed;
224
225 /**
226 * struct iwl_tlv_calib_data - parse the default calib data from TLV
227 *
228 * @ucode_type: the uCode to which the following default calib relates.
229 * @calib: default calibrations.
230 */
231 struct iwl_tlv_calib_data {
232 __le32 ucode_type;
233 struct iwl_tlv_calib_ctrl calib;
234 } __packed;
235
236 struct iwl_firmware_pieces {
237 struct fw_img_parsing img[IWL_UCODE_TYPE_MAX];
238
239 u32 init_evtlog_ptr, init_evtlog_size, init_errlog_ptr;
240 u32 inst_evtlog_ptr, inst_evtlog_size, inst_errlog_ptr;
241
242 /* FW debug data parsed for driver usage */
243 bool dbg_dest_tlv_init;
244 u8 *dbg_dest_ver;
245 union {
246 struct iwl_fw_dbg_dest_tlv *dbg_dest_tlv;
247 struct iwl_fw_dbg_dest_tlv_v1 *dbg_dest_tlv_v1;
248 };
249 struct iwl_fw_dbg_conf_tlv *dbg_conf_tlv[FW_DBG_CONF_MAX];
250 size_t dbg_conf_tlv_len[FW_DBG_CONF_MAX];
251 struct iwl_fw_dbg_trigger_tlv *dbg_trigger_tlv[FW_DBG_TRIGGER_MAX];
252 size_t dbg_trigger_tlv_len[FW_DBG_TRIGGER_MAX];
253 struct iwl_fw_dbg_mem_seg_tlv *dbg_mem_tlv;
254 size_t n_mem_tlv;
255 };
256
257 /*
258 * These functions are just to extract uCode section data from the pieces
259 * structure.
260 */
get_sec(struct iwl_firmware_pieces * pieces,enum iwl_ucode_type type,int sec)261 static struct fw_sec *get_sec(struct iwl_firmware_pieces *pieces,
262 enum iwl_ucode_type type,
263 int sec)
264 {
265 return &pieces->img[type].sec[sec];
266 }
267
alloc_sec_data(struct iwl_firmware_pieces * pieces,enum iwl_ucode_type type,int sec)268 static void alloc_sec_data(struct iwl_firmware_pieces *pieces,
269 enum iwl_ucode_type type,
270 int sec)
271 {
272 struct fw_img_parsing *img = &pieces->img[type];
273 struct fw_sec *sec_memory;
274 int size = sec + 1;
275 size_t alloc_size = sizeof(*img->sec) * size;
276
277 if (img->sec && img->sec_counter >= size)
278 return;
279
280 sec_memory = krealloc(img->sec, alloc_size, GFP_KERNEL);
281 if (!sec_memory)
282 return;
283
284 img->sec = sec_memory;
285 img->sec_counter = size;
286 }
287
set_sec_data(struct iwl_firmware_pieces * pieces,enum iwl_ucode_type type,int sec,const void * data)288 static void set_sec_data(struct iwl_firmware_pieces *pieces,
289 enum iwl_ucode_type type,
290 int sec,
291 const void *data)
292 {
293 alloc_sec_data(pieces, type, sec);
294
295 pieces->img[type].sec[sec].data = data;
296 }
297
set_sec_size(struct iwl_firmware_pieces * pieces,enum iwl_ucode_type type,int sec,size_t size)298 static void set_sec_size(struct iwl_firmware_pieces *pieces,
299 enum iwl_ucode_type type,
300 int sec,
301 size_t size)
302 {
303 alloc_sec_data(pieces, type, sec);
304
305 pieces->img[type].sec[sec].size = size;
306 }
307
get_sec_size(struct iwl_firmware_pieces * pieces,enum iwl_ucode_type type,int sec)308 static size_t get_sec_size(struct iwl_firmware_pieces *pieces,
309 enum iwl_ucode_type type,
310 int sec)
311 {
312 return pieces->img[type].sec[sec].size;
313 }
314
set_sec_offset(struct iwl_firmware_pieces * pieces,enum iwl_ucode_type type,int sec,u32 offset)315 static void set_sec_offset(struct iwl_firmware_pieces *pieces,
316 enum iwl_ucode_type type,
317 int sec,
318 u32 offset)
319 {
320 alloc_sec_data(pieces, type, sec);
321
322 pieces->img[type].sec[sec].offset = offset;
323 }
324
iwl_store_cscheme(struct iwl_fw * fw,const u8 * data,const u32 len)325 static int iwl_store_cscheme(struct iwl_fw *fw, const u8 *data, const u32 len)
326 {
327 int i, j;
328 struct iwl_fw_cscheme_list *l = (struct iwl_fw_cscheme_list *)data;
329 struct iwl_fw_cipher_scheme *fwcs;
330
331 if (len < sizeof(*l) ||
332 len < sizeof(l->size) + l->size * sizeof(l->cs[0]))
333 return -EINVAL;
334
335 for (i = 0, j = 0; i < IWL_UCODE_MAX_CS && i < l->size; i++) {
336 fwcs = &l->cs[j];
337
338 /* we skip schemes with zero cipher suite selector */
339 if (!fwcs->cipher)
340 continue;
341
342 fw->cs[j++] = *fwcs;
343 }
344
345 return 0;
346 }
347
348 /*
349 * Gets uCode section from tlv.
350 */
iwl_store_ucode_sec(struct iwl_firmware_pieces * pieces,const void * data,enum iwl_ucode_type type,int size)351 static int iwl_store_ucode_sec(struct iwl_firmware_pieces *pieces,
352 const void *data, enum iwl_ucode_type type,
353 int size)
354 {
355 struct fw_img_parsing *img;
356 struct fw_sec *sec;
357 struct fw_sec_parsing *sec_parse;
358 size_t alloc_size;
359
360 if (WARN_ON(!pieces || !data || type >= IWL_UCODE_TYPE_MAX))
361 return -1;
362
363 sec_parse = (struct fw_sec_parsing *)data;
364
365 img = &pieces->img[type];
366
367 alloc_size = sizeof(*img->sec) * (img->sec_counter + 1);
368 sec = krealloc(img->sec, alloc_size, GFP_KERNEL);
369 if (!sec)
370 return -ENOMEM;
371 img->sec = sec;
372
373 sec = &img->sec[img->sec_counter];
374
375 sec->offset = le32_to_cpu(sec_parse->offset);
376 sec->data = sec_parse->data;
377 sec->size = size - sizeof(sec_parse->offset);
378
379 ++img->sec_counter;
380
381 return 0;
382 }
383
iwl_set_default_calib(struct iwl_drv * drv,const u8 * data)384 static int iwl_set_default_calib(struct iwl_drv *drv, const u8 *data)
385 {
386 struct iwl_tlv_calib_data *def_calib =
387 (struct iwl_tlv_calib_data *)data;
388 u32 ucode_type = le32_to_cpu(def_calib->ucode_type);
389 if (ucode_type >= IWL_UCODE_TYPE_MAX) {
390 IWL_ERR(drv, "Wrong ucode_type %u for default calibration.\n",
391 ucode_type);
392 return -EINVAL;
393 }
394 drv->fw.default_calib[ucode_type].flow_trigger =
395 def_calib->calib.flow_trigger;
396 drv->fw.default_calib[ucode_type].event_trigger =
397 def_calib->calib.event_trigger;
398
399 return 0;
400 }
401
iwl_set_ucode_api_flags(struct iwl_drv * drv,const u8 * data,struct iwl_ucode_capabilities * capa)402 static void iwl_set_ucode_api_flags(struct iwl_drv *drv, const u8 *data,
403 struct iwl_ucode_capabilities *capa)
404 {
405 const struct iwl_ucode_api *ucode_api = (void *)data;
406 u32 api_index = le32_to_cpu(ucode_api->api_index);
407 u32 api_flags = le32_to_cpu(ucode_api->api_flags);
408 int i;
409
410 if (api_index >= DIV_ROUND_UP(NUM_IWL_UCODE_TLV_API, 32)) {
411 IWL_WARN(drv,
412 "api flags index %d larger than supported by driver\n",
413 api_index);
414 return;
415 }
416
417 for (i = 0; i < 32; i++) {
418 if (api_flags & BIT(i))
419 __set_bit(i + 32 * api_index, capa->_api);
420 }
421 }
422
iwl_set_ucode_capabilities(struct iwl_drv * drv,const u8 * data,struct iwl_ucode_capabilities * capa)423 static void iwl_set_ucode_capabilities(struct iwl_drv *drv, const u8 *data,
424 struct iwl_ucode_capabilities *capa)
425 {
426 const struct iwl_ucode_capa *ucode_capa = (void *)data;
427 u32 api_index = le32_to_cpu(ucode_capa->api_index);
428 u32 api_flags = le32_to_cpu(ucode_capa->api_capa);
429 int i;
430
431 if (api_index >= DIV_ROUND_UP(NUM_IWL_UCODE_TLV_CAPA, 32)) {
432 IWL_WARN(drv,
433 "capa flags index %d larger than supported by driver\n",
434 api_index);
435 return;
436 }
437
438 for (i = 0; i < 32; i++) {
439 if (api_flags & BIT(i))
440 __set_bit(i + 32 * api_index, capa->_capa);
441 }
442 }
443
iwl_reduced_fw_name(struct iwl_drv * drv)444 static const char *iwl_reduced_fw_name(struct iwl_drv *drv)
445 {
446 const char *name = drv->firmware_name;
447
448 if (strncmp(name, "iwlwifi-", 8) == 0)
449 name += 8;
450
451 return name;
452 }
453
iwl_parse_v1_v2_firmware(struct iwl_drv * drv,const struct firmware * ucode_raw,struct iwl_firmware_pieces * pieces)454 static int iwl_parse_v1_v2_firmware(struct iwl_drv *drv,
455 const struct firmware *ucode_raw,
456 struct iwl_firmware_pieces *pieces)
457 {
458 struct iwl_ucode_header *ucode = (void *)ucode_raw->data;
459 u32 api_ver, hdr_size, build;
460 char buildstr[25];
461 const u8 *src;
462
463 drv->fw.ucode_ver = le32_to_cpu(ucode->ver);
464 api_ver = IWL_UCODE_API(drv->fw.ucode_ver);
465
466 switch (api_ver) {
467 default:
468 hdr_size = 28;
469 if (ucode_raw->size < hdr_size) {
470 IWL_ERR(drv, "File size too small!\n");
471 return -EINVAL;
472 }
473 build = le32_to_cpu(ucode->u.v2.build);
474 set_sec_size(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_INST,
475 le32_to_cpu(ucode->u.v2.inst_size));
476 set_sec_size(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_DATA,
477 le32_to_cpu(ucode->u.v2.data_size));
478 set_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_INST,
479 le32_to_cpu(ucode->u.v2.init_size));
480 set_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_DATA,
481 le32_to_cpu(ucode->u.v2.init_data_size));
482 src = ucode->u.v2.data;
483 break;
484 case 0:
485 case 1:
486 case 2:
487 hdr_size = 24;
488 if (ucode_raw->size < hdr_size) {
489 IWL_ERR(drv, "File size too small!\n");
490 return -EINVAL;
491 }
492 build = 0;
493 set_sec_size(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_INST,
494 le32_to_cpu(ucode->u.v1.inst_size));
495 set_sec_size(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_DATA,
496 le32_to_cpu(ucode->u.v1.data_size));
497 set_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_INST,
498 le32_to_cpu(ucode->u.v1.init_size));
499 set_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_DATA,
500 le32_to_cpu(ucode->u.v1.init_data_size));
501 src = ucode->u.v1.data;
502 break;
503 }
504
505 if (build)
506 sprintf(buildstr, " build %u", build);
507 else
508 buildstr[0] = '\0';
509
510 snprintf(drv->fw.fw_version,
511 sizeof(drv->fw.fw_version),
512 "%u.%u.%u.%u%s %s",
513 IWL_UCODE_MAJOR(drv->fw.ucode_ver),
514 IWL_UCODE_MINOR(drv->fw.ucode_ver),
515 IWL_UCODE_API(drv->fw.ucode_ver),
516 IWL_UCODE_SERIAL(drv->fw.ucode_ver),
517 buildstr, iwl_reduced_fw_name(drv));
518
519 /* Verify size of file vs. image size info in file's header */
520
521 if (ucode_raw->size != hdr_size +
522 get_sec_size(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_INST) +
523 get_sec_size(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_DATA) +
524 get_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_INST) +
525 get_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_DATA)) {
526
527 IWL_ERR(drv,
528 "uCode file size %d does not match expected size\n",
529 (int)ucode_raw->size);
530 return -EINVAL;
531 }
532
533
534 set_sec_data(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_INST, src);
535 src += get_sec_size(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_INST);
536 set_sec_offset(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_INST,
537 IWLAGN_RTC_INST_LOWER_BOUND);
538 set_sec_data(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_DATA, src);
539 src += get_sec_size(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_DATA);
540 set_sec_offset(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_DATA,
541 IWLAGN_RTC_DATA_LOWER_BOUND);
542 set_sec_data(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_INST, src);
543 src += get_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_INST);
544 set_sec_offset(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_INST,
545 IWLAGN_RTC_INST_LOWER_BOUND);
546 set_sec_data(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_DATA, src);
547 src += get_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_DATA);
548 set_sec_offset(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_DATA,
549 IWLAGN_RTC_DATA_LOWER_BOUND);
550 return 0;
551 }
552
iwl_parse_tlv_firmware(struct iwl_drv * drv,const struct firmware * ucode_raw,struct iwl_firmware_pieces * pieces,struct iwl_ucode_capabilities * capa,bool * usniffer_images)553 static int iwl_parse_tlv_firmware(struct iwl_drv *drv,
554 const struct firmware *ucode_raw,
555 struct iwl_firmware_pieces *pieces,
556 struct iwl_ucode_capabilities *capa,
557 bool *usniffer_images)
558 {
559 struct iwl_tlv_ucode_header *ucode = (void *)ucode_raw->data;
560 const struct iwl_ucode_tlv *tlv;
561 size_t len = ucode_raw->size;
562 const u8 *data;
563 u32 tlv_len;
564 u32 usniffer_img;
565 enum iwl_ucode_tlv_type tlv_type;
566 const u8 *tlv_data;
567 char buildstr[25];
568 u32 build, paging_mem_size;
569 int num_of_cpus;
570 bool usniffer_req = false;
571
572 if (len < sizeof(*ucode)) {
573 IWL_ERR(drv, "uCode has invalid length: %zd\n", len);
574 return -EINVAL;
575 }
576
577 if (ucode->magic != cpu_to_le32(IWL_TLV_UCODE_MAGIC)) {
578 IWL_ERR(drv, "invalid uCode magic: 0X%x\n",
579 le32_to_cpu(ucode->magic));
580 return -EINVAL;
581 }
582
583 drv->fw.ucode_ver = le32_to_cpu(ucode->ver);
584 memcpy(drv->fw.human_readable, ucode->human_readable,
585 sizeof(drv->fw.human_readable));
586 build = le32_to_cpu(ucode->build);
587
588 if (build)
589 sprintf(buildstr, " build %u", build);
590 else
591 buildstr[0] = '\0';
592
593 snprintf(drv->fw.fw_version,
594 sizeof(drv->fw.fw_version),
595 "%u.%u.%u.%u%s %s",
596 IWL_UCODE_MAJOR(drv->fw.ucode_ver),
597 IWL_UCODE_MINOR(drv->fw.ucode_ver),
598 IWL_UCODE_API(drv->fw.ucode_ver),
599 IWL_UCODE_SERIAL(drv->fw.ucode_ver),
600 buildstr, iwl_reduced_fw_name(drv));
601
602 data = ucode->data;
603
604 len -= sizeof(*ucode);
605
606 while (len >= sizeof(*tlv)) {
607 len -= sizeof(*tlv);
608 tlv = (void *)data;
609
610 tlv_len = le32_to_cpu(tlv->length);
611 tlv_type = le32_to_cpu(tlv->type);
612 tlv_data = tlv->data;
613
614 if (len < tlv_len) {
615 IWL_ERR(drv, "invalid TLV len: %zd/%u\n",
616 len, tlv_len);
617 return -EINVAL;
618 }
619 len -= ALIGN(tlv_len, 4);
620 data += sizeof(*tlv) + ALIGN(tlv_len, 4);
621
622 switch (tlv_type) {
623 case IWL_UCODE_TLV_INST:
624 set_sec_data(pieces, IWL_UCODE_REGULAR,
625 IWL_UCODE_SECTION_INST, tlv_data);
626 set_sec_size(pieces, IWL_UCODE_REGULAR,
627 IWL_UCODE_SECTION_INST, tlv_len);
628 set_sec_offset(pieces, IWL_UCODE_REGULAR,
629 IWL_UCODE_SECTION_INST,
630 IWLAGN_RTC_INST_LOWER_BOUND);
631 break;
632 case IWL_UCODE_TLV_DATA:
633 set_sec_data(pieces, IWL_UCODE_REGULAR,
634 IWL_UCODE_SECTION_DATA, tlv_data);
635 set_sec_size(pieces, IWL_UCODE_REGULAR,
636 IWL_UCODE_SECTION_DATA, tlv_len);
637 set_sec_offset(pieces, IWL_UCODE_REGULAR,
638 IWL_UCODE_SECTION_DATA,
639 IWLAGN_RTC_DATA_LOWER_BOUND);
640 break;
641 case IWL_UCODE_TLV_INIT:
642 set_sec_data(pieces, IWL_UCODE_INIT,
643 IWL_UCODE_SECTION_INST, tlv_data);
644 set_sec_size(pieces, IWL_UCODE_INIT,
645 IWL_UCODE_SECTION_INST, tlv_len);
646 set_sec_offset(pieces, IWL_UCODE_INIT,
647 IWL_UCODE_SECTION_INST,
648 IWLAGN_RTC_INST_LOWER_BOUND);
649 break;
650 case IWL_UCODE_TLV_INIT_DATA:
651 set_sec_data(pieces, IWL_UCODE_INIT,
652 IWL_UCODE_SECTION_DATA, tlv_data);
653 set_sec_size(pieces, IWL_UCODE_INIT,
654 IWL_UCODE_SECTION_DATA, tlv_len);
655 set_sec_offset(pieces, IWL_UCODE_INIT,
656 IWL_UCODE_SECTION_DATA,
657 IWLAGN_RTC_DATA_LOWER_BOUND);
658 break;
659 case IWL_UCODE_TLV_BOOT:
660 IWL_ERR(drv, "Found unexpected BOOT ucode\n");
661 break;
662 case IWL_UCODE_TLV_PROBE_MAX_LEN:
663 if (tlv_len != sizeof(u32))
664 goto invalid_tlv_len;
665 capa->max_probe_length =
666 le32_to_cpup((__le32 *)tlv_data);
667 break;
668 case IWL_UCODE_TLV_PAN:
669 if (tlv_len)
670 goto invalid_tlv_len;
671 capa->flags |= IWL_UCODE_TLV_FLAGS_PAN;
672 break;
673 case IWL_UCODE_TLV_FLAGS:
674 /* must be at least one u32 */
675 if (tlv_len < sizeof(u32))
676 goto invalid_tlv_len;
677 /* and a proper number of u32s */
678 if (tlv_len % sizeof(u32))
679 goto invalid_tlv_len;
680 /*
681 * This driver only reads the first u32 as
682 * right now no more features are defined,
683 * if that changes then either the driver
684 * will not work with the new firmware, or
685 * it'll not take advantage of new features.
686 */
687 capa->flags = le32_to_cpup((__le32 *)tlv_data);
688 break;
689 case IWL_UCODE_TLV_API_CHANGES_SET:
690 if (tlv_len != sizeof(struct iwl_ucode_api))
691 goto invalid_tlv_len;
692 iwl_set_ucode_api_flags(drv, tlv_data, capa);
693 break;
694 case IWL_UCODE_TLV_ENABLED_CAPABILITIES:
695 if (tlv_len != sizeof(struct iwl_ucode_capa))
696 goto invalid_tlv_len;
697 iwl_set_ucode_capabilities(drv, tlv_data, capa);
698 break;
699 case IWL_UCODE_TLV_INIT_EVTLOG_PTR:
700 if (tlv_len != sizeof(u32))
701 goto invalid_tlv_len;
702 pieces->init_evtlog_ptr =
703 le32_to_cpup((__le32 *)tlv_data);
704 break;
705 case IWL_UCODE_TLV_INIT_EVTLOG_SIZE:
706 if (tlv_len != sizeof(u32))
707 goto invalid_tlv_len;
708 pieces->init_evtlog_size =
709 le32_to_cpup((__le32 *)tlv_data);
710 break;
711 case IWL_UCODE_TLV_INIT_ERRLOG_PTR:
712 if (tlv_len != sizeof(u32))
713 goto invalid_tlv_len;
714 pieces->init_errlog_ptr =
715 le32_to_cpup((__le32 *)tlv_data);
716 break;
717 case IWL_UCODE_TLV_RUNT_EVTLOG_PTR:
718 if (tlv_len != sizeof(u32))
719 goto invalid_tlv_len;
720 pieces->inst_evtlog_ptr =
721 le32_to_cpup((__le32 *)tlv_data);
722 break;
723 case IWL_UCODE_TLV_RUNT_EVTLOG_SIZE:
724 if (tlv_len != sizeof(u32))
725 goto invalid_tlv_len;
726 pieces->inst_evtlog_size =
727 le32_to_cpup((__le32 *)tlv_data);
728 break;
729 case IWL_UCODE_TLV_RUNT_ERRLOG_PTR:
730 if (tlv_len != sizeof(u32))
731 goto invalid_tlv_len;
732 pieces->inst_errlog_ptr =
733 le32_to_cpup((__le32 *)tlv_data);
734 break;
735 case IWL_UCODE_TLV_ENHANCE_SENS_TBL:
736 if (tlv_len)
737 goto invalid_tlv_len;
738 drv->fw.enhance_sensitivity_table = true;
739 break;
740 case IWL_UCODE_TLV_WOWLAN_INST:
741 set_sec_data(pieces, IWL_UCODE_WOWLAN,
742 IWL_UCODE_SECTION_INST, tlv_data);
743 set_sec_size(pieces, IWL_UCODE_WOWLAN,
744 IWL_UCODE_SECTION_INST, tlv_len);
745 set_sec_offset(pieces, IWL_UCODE_WOWLAN,
746 IWL_UCODE_SECTION_INST,
747 IWLAGN_RTC_INST_LOWER_BOUND);
748 break;
749 case IWL_UCODE_TLV_WOWLAN_DATA:
750 set_sec_data(pieces, IWL_UCODE_WOWLAN,
751 IWL_UCODE_SECTION_DATA, tlv_data);
752 set_sec_size(pieces, IWL_UCODE_WOWLAN,
753 IWL_UCODE_SECTION_DATA, tlv_len);
754 set_sec_offset(pieces, IWL_UCODE_WOWLAN,
755 IWL_UCODE_SECTION_DATA,
756 IWLAGN_RTC_DATA_LOWER_BOUND);
757 break;
758 case IWL_UCODE_TLV_PHY_CALIBRATION_SIZE:
759 if (tlv_len != sizeof(u32))
760 goto invalid_tlv_len;
761 capa->standard_phy_calibration_size =
762 le32_to_cpup((__le32 *)tlv_data);
763 break;
764 case IWL_UCODE_TLV_SEC_RT:
765 iwl_store_ucode_sec(pieces, tlv_data, IWL_UCODE_REGULAR,
766 tlv_len);
767 drv->fw.type = IWL_FW_MVM;
768 break;
769 case IWL_UCODE_TLV_SEC_INIT:
770 iwl_store_ucode_sec(pieces, tlv_data, IWL_UCODE_INIT,
771 tlv_len);
772 drv->fw.type = IWL_FW_MVM;
773 break;
774 case IWL_UCODE_TLV_SEC_WOWLAN:
775 iwl_store_ucode_sec(pieces, tlv_data, IWL_UCODE_WOWLAN,
776 tlv_len);
777 drv->fw.type = IWL_FW_MVM;
778 break;
779 case IWL_UCODE_TLV_DEF_CALIB:
780 if (tlv_len != sizeof(struct iwl_tlv_calib_data))
781 goto invalid_tlv_len;
782 if (iwl_set_default_calib(drv, tlv_data))
783 goto tlv_error;
784 break;
785 case IWL_UCODE_TLV_PHY_SKU:
786 if (tlv_len != sizeof(u32))
787 goto invalid_tlv_len;
788 drv->fw.phy_config = le32_to_cpup((__le32 *)tlv_data);
789 drv->fw.valid_tx_ant = (drv->fw.phy_config &
790 FW_PHY_CFG_TX_CHAIN) >>
791 FW_PHY_CFG_TX_CHAIN_POS;
792 drv->fw.valid_rx_ant = (drv->fw.phy_config &
793 FW_PHY_CFG_RX_CHAIN) >>
794 FW_PHY_CFG_RX_CHAIN_POS;
795 break;
796 case IWL_UCODE_TLV_SECURE_SEC_RT:
797 iwl_store_ucode_sec(pieces, tlv_data, IWL_UCODE_REGULAR,
798 tlv_len);
799 drv->fw.type = IWL_FW_MVM;
800 break;
801 case IWL_UCODE_TLV_SECURE_SEC_INIT:
802 iwl_store_ucode_sec(pieces, tlv_data, IWL_UCODE_INIT,
803 tlv_len);
804 drv->fw.type = IWL_FW_MVM;
805 break;
806 case IWL_UCODE_TLV_SECURE_SEC_WOWLAN:
807 iwl_store_ucode_sec(pieces, tlv_data, IWL_UCODE_WOWLAN,
808 tlv_len);
809 drv->fw.type = IWL_FW_MVM;
810 break;
811 case IWL_UCODE_TLV_NUM_OF_CPU:
812 if (tlv_len != sizeof(u32))
813 goto invalid_tlv_len;
814 num_of_cpus =
815 le32_to_cpup((__le32 *)tlv_data);
816
817 if (num_of_cpus == 2) {
818 drv->fw.img[IWL_UCODE_REGULAR].is_dual_cpus =
819 true;
820 drv->fw.img[IWL_UCODE_INIT].is_dual_cpus =
821 true;
822 drv->fw.img[IWL_UCODE_WOWLAN].is_dual_cpus =
823 true;
824 } else if ((num_of_cpus > 2) || (num_of_cpus < 1)) {
825 IWL_ERR(drv, "Driver support upto 2 CPUs\n");
826 return -EINVAL;
827 }
828 break;
829 case IWL_UCODE_TLV_CSCHEME:
830 if (iwl_store_cscheme(&drv->fw, tlv_data, tlv_len))
831 goto invalid_tlv_len;
832 break;
833 case IWL_UCODE_TLV_N_SCAN_CHANNELS:
834 if (tlv_len != sizeof(u32))
835 goto invalid_tlv_len;
836 capa->n_scan_channels =
837 le32_to_cpup((__le32 *)tlv_data);
838 break;
839 case IWL_UCODE_TLV_FW_VERSION: {
840 __le32 *ptr = (void *)tlv_data;
841 u32 major, minor;
842 u8 local_comp;
843
844 if (tlv_len != sizeof(u32) * 3)
845 goto invalid_tlv_len;
846
847 major = le32_to_cpup(ptr++);
848 minor = le32_to_cpup(ptr++);
849 local_comp = le32_to_cpup(ptr);
850
851 if (major >= 35)
852 snprintf(drv->fw.fw_version,
853 sizeof(drv->fw.fw_version),
854 "%u.%08x.%u %s", major, minor,
855 local_comp, iwl_reduced_fw_name(drv));
856 else
857 snprintf(drv->fw.fw_version,
858 sizeof(drv->fw.fw_version),
859 "%u.%u.%u %s", major, minor,
860 local_comp, iwl_reduced_fw_name(drv));
861 break;
862 }
863 case IWL_UCODE_TLV_FW_DBG_DEST: {
864 struct iwl_fw_dbg_dest_tlv *dest = NULL;
865 struct iwl_fw_dbg_dest_tlv_v1 *dest_v1 = NULL;
866 u8 mon_mode;
867
868 pieces->dbg_dest_ver = (u8 *)tlv_data;
869 if (*pieces->dbg_dest_ver == 1) {
870 dest = (void *)tlv_data;
871 } else if (*pieces->dbg_dest_ver == 0) {
872 dest_v1 = (void *)tlv_data;
873 } else {
874 IWL_ERR(drv,
875 "The version is %d, and it is invalid\n",
876 *pieces->dbg_dest_ver);
877 break;
878 }
879
880 if (pieces->dbg_dest_tlv_init) {
881 IWL_ERR(drv,
882 "dbg destination ignored, already exists\n");
883 break;
884 }
885
886 pieces->dbg_dest_tlv_init = true;
887
888 if (dest_v1) {
889 pieces->dbg_dest_tlv_v1 = dest_v1;
890 mon_mode = dest_v1->monitor_mode;
891 } else {
892 pieces->dbg_dest_tlv = dest;
893 mon_mode = dest->monitor_mode;
894 }
895
896 IWL_INFO(drv, "Found debug destination: %s\n",
897 get_fw_dbg_mode_string(mon_mode));
898
899 drv->fw.dbg.n_dest_reg = (dest_v1) ?
900 tlv_len -
901 offsetof(struct iwl_fw_dbg_dest_tlv_v1,
902 reg_ops) :
903 tlv_len -
904 offsetof(struct iwl_fw_dbg_dest_tlv,
905 reg_ops);
906
907 drv->fw.dbg.n_dest_reg /=
908 sizeof(drv->fw.dbg.dest_tlv->reg_ops[0]);
909
910 break;
911 }
912 case IWL_UCODE_TLV_FW_DBG_CONF: {
913 struct iwl_fw_dbg_conf_tlv *conf = (void *)tlv_data;
914
915 if (!pieces->dbg_dest_tlv_init) {
916 IWL_ERR(drv,
917 "Ignore dbg config %d - no destination configured\n",
918 conf->id);
919 break;
920 }
921
922 if (conf->id >= ARRAY_SIZE(drv->fw.dbg.conf_tlv)) {
923 IWL_ERR(drv,
924 "Skip unknown configuration: %d\n",
925 conf->id);
926 break;
927 }
928
929 if (pieces->dbg_conf_tlv[conf->id]) {
930 IWL_ERR(drv,
931 "Ignore duplicate dbg config %d\n",
932 conf->id);
933 break;
934 }
935
936 if (conf->usniffer)
937 usniffer_req = true;
938
939 IWL_INFO(drv, "Found debug configuration: %d\n",
940 conf->id);
941
942 pieces->dbg_conf_tlv[conf->id] = conf;
943 pieces->dbg_conf_tlv_len[conf->id] = tlv_len;
944 break;
945 }
946 case IWL_UCODE_TLV_FW_DBG_TRIGGER: {
947 struct iwl_fw_dbg_trigger_tlv *trigger =
948 (void *)tlv_data;
949 u32 trigger_id = le32_to_cpu(trigger->id);
950
951 if (trigger_id >= ARRAY_SIZE(drv->fw.dbg.trigger_tlv)) {
952 IWL_ERR(drv,
953 "Skip unknown trigger: %u\n",
954 trigger->id);
955 break;
956 }
957
958 if (pieces->dbg_trigger_tlv[trigger_id]) {
959 IWL_ERR(drv,
960 "Ignore duplicate dbg trigger %u\n",
961 trigger->id);
962 break;
963 }
964
965 IWL_INFO(drv, "Found debug trigger: %u\n", trigger->id);
966
967 pieces->dbg_trigger_tlv[trigger_id] = trigger;
968 pieces->dbg_trigger_tlv_len[trigger_id] = tlv_len;
969 break;
970 }
971 case IWL_UCODE_TLV_FW_DBG_DUMP_LST: {
972 if (tlv_len != sizeof(u32)) {
973 IWL_ERR(drv,
974 "dbg lst mask size incorrect, skip\n");
975 break;
976 }
977
978 drv->fw.dbg.dump_mask =
979 le32_to_cpup((__le32 *)tlv_data);
980 break;
981 }
982 case IWL_UCODE_TLV_SEC_RT_USNIFFER:
983 *usniffer_images = true;
984 iwl_store_ucode_sec(pieces, tlv_data,
985 IWL_UCODE_REGULAR_USNIFFER,
986 tlv_len);
987 break;
988 case IWL_UCODE_TLV_PAGING:
989 if (tlv_len != sizeof(u32))
990 goto invalid_tlv_len;
991 paging_mem_size = le32_to_cpup((__le32 *)tlv_data);
992
993 IWL_DEBUG_FW(drv,
994 "Paging: paging enabled (size = %u bytes)\n",
995 paging_mem_size);
996
997 if (paging_mem_size > MAX_PAGING_IMAGE_SIZE) {
998 IWL_ERR(drv,
999 "Paging: driver supports up to %lu bytes for paging image\n",
1000 MAX_PAGING_IMAGE_SIZE);
1001 return -EINVAL;
1002 }
1003
1004 if (paging_mem_size & (FW_PAGING_SIZE - 1)) {
1005 IWL_ERR(drv,
1006 "Paging: image isn't multiple %lu\n",
1007 FW_PAGING_SIZE);
1008 return -EINVAL;
1009 }
1010
1011 drv->fw.img[IWL_UCODE_REGULAR].paging_mem_size =
1012 paging_mem_size;
1013 usniffer_img = IWL_UCODE_REGULAR_USNIFFER;
1014 drv->fw.img[usniffer_img].paging_mem_size =
1015 paging_mem_size;
1016 break;
1017 case IWL_UCODE_TLV_FW_GSCAN_CAPA:
1018 /* ignored */
1019 break;
1020 case IWL_UCODE_TLV_FW_MEM_SEG: {
1021 struct iwl_fw_dbg_mem_seg_tlv *dbg_mem =
1022 (void *)tlv_data;
1023 size_t size;
1024 struct iwl_fw_dbg_mem_seg_tlv *n;
1025
1026 if (tlv_len != (sizeof(*dbg_mem)))
1027 goto invalid_tlv_len;
1028
1029 IWL_DEBUG_INFO(drv, "Found debug memory segment: %u\n",
1030 dbg_mem->data_type);
1031
1032 size = sizeof(*pieces->dbg_mem_tlv) *
1033 (pieces->n_mem_tlv + 1);
1034 n = krealloc(pieces->dbg_mem_tlv, size, GFP_KERNEL);
1035 if (!n)
1036 return -ENOMEM;
1037 pieces->dbg_mem_tlv = n;
1038 pieces->dbg_mem_tlv[pieces->n_mem_tlv] = *dbg_mem;
1039 pieces->n_mem_tlv++;
1040 break;
1041 }
1042 case IWL_UCODE_TLV_IML: {
1043 drv->fw.iml_len = tlv_len;
1044 drv->fw.iml = kmemdup(tlv_data, tlv_len, GFP_KERNEL);
1045 if (!drv->fw.iml)
1046 return -ENOMEM;
1047 break;
1048 }
1049 case IWL_UCODE_TLV_FW_RECOVERY_INFO: {
1050 struct {
1051 __le32 buf_addr;
1052 __le32 buf_size;
1053 } *recov_info = (void *)tlv_data;
1054
1055 if (tlv_len != sizeof(*recov_info))
1056 goto invalid_tlv_len;
1057 capa->error_log_addr =
1058 le32_to_cpu(recov_info->buf_addr);
1059 capa->error_log_size =
1060 le32_to_cpu(recov_info->buf_size);
1061 }
1062 break;
1063 case IWL_UCODE_TLV_FW_FSEQ_VERSION: {
1064 struct {
1065 u8 version[32];
1066 u8 sha1[20];
1067 } *fseq_ver = (void *)tlv_data;
1068
1069 if (tlv_len != sizeof(*fseq_ver))
1070 goto invalid_tlv_len;
1071 IWL_INFO(drv, "TLV_FW_FSEQ_VERSION: %s\n",
1072 fseq_ver->version);
1073 }
1074 break;
1075 case IWL_UCODE_TLV_FW_NUM_STATIONS:
1076 if (tlv_len != sizeof(u32))
1077 goto invalid_tlv_len;
1078 if (le32_to_cpup((__le32 *)tlv_data) >
1079 IWL_MVM_STATION_COUNT_MAX) {
1080 IWL_ERR(drv,
1081 "%d is an invalid number of station\n",
1082 le32_to_cpup((__le32 *)tlv_data));
1083 goto tlv_error;
1084 }
1085 capa->num_stations =
1086 le32_to_cpup((__le32 *)tlv_data);
1087 break;
1088 case IWL_UCODE_TLV_UMAC_DEBUG_ADDRS: {
1089 struct iwl_umac_debug_addrs *dbg_ptrs =
1090 (void *)tlv_data;
1091
1092 if (tlv_len != sizeof(*dbg_ptrs))
1093 goto invalid_tlv_len;
1094 if (drv->trans->trans_cfg->device_family <
1095 IWL_DEVICE_FAMILY_22000)
1096 break;
1097 drv->trans->dbg.umac_error_event_table =
1098 le32_to_cpu(dbg_ptrs->error_info_addr) &
1099 ~FW_ADDR_CACHE_CONTROL;
1100 drv->trans->dbg.error_event_table_tlv_status |=
1101 IWL_ERROR_EVENT_TABLE_UMAC;
1102 break;
1103 }
1104 case IWL_UCODE_TLV_LMAC_DEBUG_ADDRS: {
1105 struct iwl_lmac_debug_addrs *dbg_ptrs =
1106 (void *)tlv_data;
1107
1108 if (tlv_len != sizeof(*dbg_ptrs))
1109 goto invalid_tlv_len;
1110 if (drv->trans->trans_cfg->device_family <
1111 IWL_DEVICE_FAMILY_22000)
1112 break;
1113 drv->trans->dbg.lmac_error_event_table[0] =
1114 le32_to_cpu(dbg_ptrs->error_event_table_ptr) &
1115 ~FW_ADDR_CACHE_CONTROL;
1116 drv->trans->dbg.error_event_table_tlv_status |=
1117 IWL_ERROR_EVENT_TABLE_LMAC1;
1118 break;
1119 }
1120 case IWL_UCODE_TLV_TYPE_DEBUG_INFO:
1121 case IWL_UCODE_TLV_TYPE_BUFFER_ALLOCATION:
1122 case IWL_UCODE_TLV_TYPE_HCMD:
1123 case IWL_UCODE_TLV_TYPE_REGIONS:
1124 case IWL_UCODE_TLV_TYPE_TRIGGERS:
1125 if (iwlwifi_mod_params.enable_ini)
1126 iwl_dbg_tlv_alloc(drv->trans, tlv, false);
1127 break;
1128 case IWL_UCODE_TLV_CMD_VERSIONS:
1129 if (tlv_len % sizeof(struct iwl_fw_cmd_version)) {
1130 IWL_ERR(drv,
1131 "Invalid length for command versions: %u\n",
1132 tlv_len);
1133 tlv_len /= sizeof(struct iwl_fw_cmd_version);
1134 tlv_len *= sizeof(struct iwl_fw_cmd_version);
1135 }
1136 if (WARN_ON(capa->cmd_versions))
1137 return -EINVAL;
1138 capa->cmd_versions = kmemdup(tlv_data, tlv_len,
1139 GFP_KERNEL);
1140 if (!capa->cmd_versions)
1141 return -ENOMEM;
1142 capa->n_cmd_versions =
1143 tlv_len / sizeof(struct iwl_fw_cmd_version);
1144 break;
1145 case IWL_UCODE_TLV_PHY_INTEGRATION_VERSION:
1146 if (drv->fw.phy_integration_ver) {
1147 IWL_ERR(drv,
1148 "phy integration str ignored, already exists\n");
1149 break;
1150 }
1151
1152 drv->fw.phy_integration_ver =
1153 kmemdup(tlv_data, tlv_len, GFP_KERNEL);
1154 if (!drv->fw.phy_integration_ver)
1155 return -ENOMEM;
1156 drv->fw.phy_integration_ver_len = tlv_len;
1157 break;
1158 default:
1159 IWL_DEBUG_INFO(drv, "unknown TLV: %d\n", tlv_type);
1160 break;
1161 }
1162 }
1163
1164 if (!fw_has_capa(capa, IWL_UCODE_TLV_CAPA_USNIFFER_UNIFIED) &&
1165 usniffer_req && !*usniffer_images) {
1166 IWL_ERR(drv,
1167 "user selected to work with usniffer but usniffer image isn't available in ucode package\n");
1168 return -EINVAL;
1169 }
1170
1171 if (len) {
1172 IWL_ERR(drv, "invalid TLV after parsing: %zd\n", len);
1173 iwl_print_hex_dump(drv, IWL_DL_FW, (u8 *)data, len);
1174 return -EINVAL;
1175 }
1176
1177 return 0;
1178
1179 invalid_tlv_len:
1180 IWL_ERR(drv, "TLV %d has invalid size: %u\n", tlv_type, tlv_len);
1181 tlv_error:
1182 iwl_print_hex_dump(drv, IWL_DL_FW, tlv_data, tlv_len);
1183
1184 return -EINVAL;
1185 }
1186
iwl_alloc_ucode(struct iwl_drv * drv,struct iwl_firmware_pieces * pieces,enum iwl_ucode_type type)1187 static int iwl_alloc_ucode(struct iwl_drv *drv,
1188 struct iwl_firmware_pieces *pieces,
1189 enum iwl_ucode_type type)
1190 {
1191 int i;
1192 struct fw_desc *sec;
1193
1194 sec = kcalloc(pieces->img[type].sec_counter, sizeof(*sec), GFP_KERNEL);
1195 if (!sec)
1196 return -ENOMEM;
1197 drv->fw.img[type].sec = sec;
1198 drv->fw.img[type].num_sec = pieces->img[type].sec_counter;
1199
1200 for (i = 0; i < pieces->img[type].sec_counter; i++)
1201 if (iwl_alloc_fw_desc(drv, &sec[i], get_sec(pieces, type, i)))
1202 return -ENOMEM;
1203
1204 return 0;
1205 }
1206
validate_sec_sizes(struct iwl_drv * drv,struct iwl_firmware_pieces * pieces,const struct iwl_cfg * cfg)1207 static int validate_sec_sizes(struct iwl_drv *drv,
1208 struct iwl_firmware_pieces *pieces,
1209 const struct iwl_cfg *cfg)
1210 {
1211 IWL_DEBUG_INFO(drv, "f/w package hdr runtime inst size = %zd\n",
1212 get_sec_size(pieces, IWL_UCODE_REGULAR,
1213 IWL_UCODE_SECTION_INST));
1214 IWL_DEBUG_INFO(drv, "f/w package hdr runtime data size = %zd\n",
1215 get_sec_size(pieces, IWL_UCODE_REGULAR,
1216 IWL_UCODE_SECTION_DATA));
1217 IWL_DEBUG_INFO(drv, "f/w package hdr init inst size = %zd\n",
1218 get_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_INST));
1219 IWL_DEBUG_INFO(drv, "f/w package hdr init data size = %zd\n",
1220 get_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_DATA));
1221
1222 /* Verify that uCode images will fit in card's SRAM. */
1223 if (get_sec_size(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_INST) >
1224 cfg->max_inst_size) {
1225 IWL_ERR(drv, "uCode instr len %zd too large to fit in\n",
1226 get_sec_size(pieces, IWL_UCODE_REGULAR,
1227 IWL_UCODE_SECTION_INST));
1228 return -1;
1229 }
1230
1231 if (get_sec_size(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_DATA) >
1232 cfg->max_data_size) {
1233 IWL_ERR(drv, "uCode data len %zd too large to fit in\n",
1234 get_sec_size(pieces, IWL_UCODE_REGULAR,
1235 IWL_UCODE_SECTION_DATA));
1236 return -1;
1237 }
1238
1239 if (get_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_INST) >
1240 cfg->max_inst_size) {
1241 IWL_ERR(drv, "uCode init instr len %zd too large to fit in\n",
1242 get_sec_size(pieces, IWL_UCODE_INIT,
1243 IWL_UCODE_SECTION_INST));
1244 return -1;
1245 }
1246
1247 if (get_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_DATA) >
1248 cfg->max_data_size) {
1249 IWL_ERR(drv, "uCode init data len %zd too large to fit in\n",
1250 get_sec_size(pieces, IWL_UCODE_REGULAR,
1251 IWL_UCODE_SECTION_DATA));
1252 return -1;
1253 }
1254 return 0;
1255 }
1256
1257 static struct iwl_op_mode *
_iwl_op_mode_start(struct iwl_drv * drv,struct iwlwifi_opmode_table * op)1258 _iwl_op_mode_start(struct iwl_drv *drv, struct iwlwifi_opmode_table *op)
1259 {
1260 const struct iwl_op_mode_ops *ops = op->ops;
1261 struct dentry *dbgfs_dir = NULL;
1262 struct iwl_op_mode *op_mode = NULL;
1263
1264 #ifdef CONFIG_IWLWIFI_DEBUGFS
1265 drv->dbgfs_op_mode = debugfs_create_dir(op->name,
1266 drv->dbgfs_drv);
1267 dbgfs_dir = drv->dbgfs_op_mode;
1268 #endif
1269
1270 op_mode = ops->start(drv->trans, drv->trans->cfg, &drv->fw, dbgfs_dir);
1271
1272 #ifdef CONFIG_IWLWIFI_DEBUGFS
1273 if (!op_mode) {
1274 debugfs_remove_recursive(drv->dbgfs_op_mode);
1275 drv->dbgfs_op_mode = NULL;
1276 }
1277 #endif
1278
1279 return op_mode;
1280 }
1281
_iwl_op_mode_stop(struct iwl_drv * drv)1282 static void _iwl_op_mode_stop(struct iwl_drv *drv)
1283 {
1284 /* op_mode can be NULL if its start failed */
1285 if (drv->op_mode) {
1286 iwl_op_mode_stop(drv->op_mode);
1287 drv->op_mode = NULL;
1288
1289 #ifdef CONFIG_IWLWIFI_DEBUGFS
1290 debugfs_remove_recursive(drv->dbgfs_op_mode);
1291 drv->dbgfs_op_mode = NULL;
1292 #endif
1293 }
1294 }
1295
1296 /*
1297 * iwl_req_fw_callback - callback when firmware was loaded
1298 *
1299 * If loaded successfully, copies the firmware into buffers
1300 * for the card to fetch (via DMA).
1301 */
iwl_req_fw_callback(const struct firmware * ucode_raw,void * context)1302 static void iwl_req_fw_callback(const struct firmware *ucode_raw, void *context)
1303 {
1304 struct iwl_drv *drv = context;
1305 struct iwl_fw *fw = &drv->fw;
1306 struct iwl_ucode_header *ucode;
1307 struct iwlwifi_opmode_table *op;
1308 int err;
1309 struct iwl_firmware_pieces *pieces;
1310 const unsigned int api_max = drv->trans->cfg->ucode_api_max;
1311 const unsigned int api_min = drv->trans->cfg->ucode_api_min;
1312 size_t trigger_tlv_sz[FW_DBG_TRIGGER_MAX];
1313 u32 api_ver;
1314 int i;
1315 bool load_module = false;
1316 bool usniffer_images = false;
1317
1318 fw->ucode_capa.max_probe_length = IWL_DEFAULT_MAX_PROBE_LENGTH;
1319 fw->ucode_capa.standard_phy_calibration_size =
1320 IWL_DEFAULT_STANDARD_PHY_CALIBRATE_TBL_SIZE;
1321 fw->ucode_capa.n_scan_channels = IWL_DEFAULT_SCAN_CHANNELS;
1322 fw->ucode_capa.num_stations = IWL_MVM_STATION_COUNT_MAX;
1323 /* dump all fw memory areas by default */
1324 fw->dbg.dump_mask = 0xffffffff;
1325
1326 pieces = kzalloc(sizeof(*pieces), GFP_KERNEL);
1327 if (!pieces)
1328 goto out_free_fw;
1329
1330 if (!ucode_raw)
1331 goto try_again;
1332
1333 IWL_DEBUG_FW_INFO(drv, "Loaded firmware file '%s' (%zd bytes).\n",
1334 drv->firmware_name, ucode_raw->size);
1335
1336 /* Make sure that we got at least the API version number */
1337 if (ucode_raw->size < 4) {
1338 IWL_ERR(drv, "File size way too small!\n");
1339 goto try_again;
1340 }
1341
1342 /* Data from ucode file: header followed by uCode images */
1343 ucode = (struct iwl_ucode_header *)ucode_raw->data;
1344
1345 if (ucode->ver)
1346 err = iwl_parse_v1_v2_firmware(drv, ucode_raw, pieces);
1347 else
1348 err = iwl_parse_tlv_firmware(drv, ucode_raw, pieces,
1349 &fw->ucode_capa, &usniffer_images);
1350
1351 if (err)
1352 goto try_again;
1353
1354 if (fw_has_api(&drv->fw.ucode_capa, IWL_UCODE_TLV_API_NEW_VERSION))
1355 api_ver = drv->fw.ucode_ver;
1356 else
1357 api_ver = IWL_UCODE_API(drv->fw.ucode_ver);
1358
1359 /*
1360 * api_ver should match the api version forming part of the
1361 * firmware filename ... but we don't check for that and only rely
1362 * on the API version read from firmware header from here on forward
1363 */
1364 if (api_ver < api_min || api_ver > api_max) {
1365 IWL_ERR(drv,
1366 "Driver unable to support your firmware API. "
1367 "Driver supports v%u, firmware is v%u.\n",
1368 api_max, api_ver);
1369 goto try_again;
1370 }
1371
1372 /*
1373 * In mvm uCode there is no difference between data and instructions
1374 * sections.
1375 */
1376 if (fw->type == IWL_FW_DVM && validate_sec_sizes(drv, pieces,
1377 drv->trans->cfg))
1378 goto try_again;
1379
1380 /* Allocate ucode buffers for card's bus-master loading ... */
1381
1382 /* Runtime instructions and 2 copies of data:
1383 * 1) unmodified from disk
1384 * 2) backup cache for save/restore during power-downs
1385 */
1386 for (i = 0; i < IWL_UCODE_TYPE_MAX; i++)
1387 if (iwl_alloc_ucode(drv, pieces, i))
1388 goto out_free_fw;
1389
1390 if (pieces->dbg_dest_tlv_init) {
1391 size_t dbg_dest_size = sizeof(*drv->fw.dbg.dest_tlv) +
1392 sizeof(drv->fw.dbg.dest_tlv->reg_ops[0]) *
1393 drv->fw.dbg.n_dest_reg;
1394
1395 drv->fw.dbg.dest_tlv = kmalloc(dbg_dest_size, GFP_KERNEL);
1396
1397 if (!drv->fw.dbg.dest_tlv)
1398 goto out_free_fw;
1399
1400 if (*pieces->dbg_dest_ver == 0) {
1401 memcpy(drv->fw.dbg.dest_tlv, pieces->dbg_dest_tlv_v1,
1402 dbg_dest_size);
1403 } else {
1404 struct iwl_fw_dbg_dest_tlv_v1 *dest_tlv =
1405 drv->fw.dbg.dest_tlv;
1406
1407 dest_tlv->version = pieces->dbg_dest_tlv->version;
1408 dest_tlv->monitor_mode =
1409 pieces->dbg_dest_tlv->monitor_mode;
1410 dest_tlv->size_power =
1411 pieces->dbg_dest_tlv->size_power;
1412 dest_tlv->wrap_count =
1413 pieces->dbg_dest_tlv->wrap_count;
1414 dest_tlv->write_ptr_reg =
1415 pieces->dbg_dest_tlv->write_ptr_reg;
1416 dest_tlv->base_shift =
1417 pieces->dbg_dest_tlv->base_shift;
1418 memcpy(dest_tlv->reg_ops,
1419 pieces->dbg_dest_tlv->reg_ops,
1420 sizeof(drv->fw.dbg.dest_tlv->reg_ops[0]) *
1421 drv->fw.dbg.n_dest_reg);
1422
1423 /* In version 1 of the destination tlv, which is
1424 * relevant for internal buffer exclusively,
1425 * the base address is part of given with the length
1426 * of the buffer, and the size shift is give instead of
1427 * end shift. We now store these values in base_reg,
1428 * and end shift, and when dumping the data we'll
1429 * manipulate it for extracting both the length and
1430 * base address */
1431 dest_tlv->base_reg = pieces->dbg_dest_tlv->cfg_reg;
1432 dest_tlv->end_shift =
1433 pieces->dbg_dest_tlv->size_shift;
1434 }
1435 }
1436
1437 for (i = 0; i < ARRAY_SIZE(drv->fw.dbg.conf_tlv); i++) {
1438 if (pieces->dbg_conf_tlv[i]) {
1439 drv->fw.dbg.conf_tlv[i] =
1440 kmemdup(pieces->dbg_conf_tlv[i],
1441 pieces->dbg_conf_tlv_len[i],
1442 GFP_KERNEL);
1443 if (!drv->fw.dbg.conf_tlv[i])
1444 goto out_free_fw;
1445 }
1446 }
1447
1448 memset(&trigger_tlv_sz, 0xff, sizeof(trigger_tlv_sz));
1449
1450 trigger_tlv_sz[FW_DBG_TRIGGER_MISSED_BEACONS] =
1451 sizeof(struct iwl_fw_dbg_trigger_missed_bcon);
1452 trigger_tlv_sz[FW_DBG_TRIGGER_CHANNEL_SWITCH] = 0;
1453 trigger_tlv_sz[FW_DBG_TRIGGER_FW_NOTIF] =
1454 sizeof(struct iwl_fw_dbg_trigger_cmd);
1455 trigger_tlv_sz[FW_DBG_TRIGGER_MLME] =
1456 sizeof(struct iwl_fw_dbg_trigger_mlme);
1457 trigger_tlv_sz[FW_DBG_TRIGGER_STATS] =
1458 sizeof(struct iwl_fw_dbg_trigger_stats);
1459 trigger_tlv_sz[FW_DBG_TRIGGER_RSSI] =
1460 sizeof(struct iwl_fw_dbg_trigger_low_rssi);
1461 trigger_tlv_sz[FW_DBG_TRIGGER_TXQ_TIMERS] =
1462 sizeof(struct iwl_fw_dbg_trigger_txq_timer);
1463 trigger_tlv_sz[FW_DBG_TRIGGER_TIME_EVENT] =
1464 sizeof(struct iwl_fw_dbg_trigger_time_event);
1465 trigger_tlv_sz[FW_DBG_TRIGGER_BA] =
1466 sizeof(struct iwl_fw_dbg_trigger_ba);
1467 trigger_tlv_sz[FW_DBG_TRIGGER_TDLS] =
1468 sizeof(struct iwl_fw_dbg_trigger_tdls);
1469
1470 for (i = 0; i < ARRAY_SIZE(drv->fw.dbg.trigger_tlv); i++) {
1471 if (pieces->dbg_trigger_tlv[i]) {
1472 /*
1473 * If the trigger isn't long enough, WARN and exit.
1474 * Someone is trying to debug something and he won't
1475 * be able to catch the bug he is trying to chase.
1476 * We'd better be noisy to be sure he knows what's
1477 * going on.
1478 */
1479 if (WARN_ON(pieces->dbg_trigger_tlv_len[i] <
1480 (trigger_tlv_sz[i] +
1481 sizeof(struct iwl_fw_dbg_trigger_tlv))))
1482 goto out_free_fw;
1483 drv->fw.dbg.trigger_tlv_len[i] =
1484 pieces->dbg_trigger_tlv_len[i];
1485 drv->fw.dbg.trigger_tlv[i] =
1486 kmemdup(pieces->dbg_trigger_tlv[i],
1487 drv->fw.dbg.trigger_tlv_len[i],
1488 GFP_KERNEL);
1489 if (!drv->fw.dbg.trigger_tlv[i])
1490 goto out_free_fw;
1491 }
1492 }
1493
1494 /* Now that we can no longer fail, copy information */
1495
1496 drv->fw.dbg.mem_tlv = pieces->dbg_mem_tlv;
1497 pieces->dbg_mem_tlv = NULL;
1498 drv->fw.dbg.n_mem_tlv = pieces->n_mem_tlv;
1499
1500 /*
1501 * The (size - 16) / 12 formula is based on the information recorded
1502 * for each event, which is of mode 1 (including timestamp) for all
1503 * new microcodes that include this information.
1504 */
1505 fw->init_evtlog_ptr = pieces->init_evtlog_ptr;
1506 if (pieces->init_evtlog_size)
1507 fw->init_evtlog_size = (pieces->init_evtlog_size - 16)/12;
1508 else
1509 fw->init_evtlog_size =
1510 drv->trans->trans_cfg->base_params->max_event_log_size;
1511 fw->init_errlog_ptr = pieces->init_errlog_ptr;
1512 fw->inst_evtlog_ptr = pieces->inst_evtlog_ptr;
1513 if (pieces->inst_evtlog_size)
1514 fw->inst_evtlog_size = (pieces->inst_evtlog_size - 16)/12;
1515 else
1516 fw->inst_evtlog_size =
1517 drv->trans->trans_cfg->base_params->max_event_log_size;
1518 fw->inst_errlog_ptr = pieces->inst_errlog_ptr;
1519
1520 /*
1521 * figure out the offset of chain noise reset and gain commands
1522 * base on the size of standard phy calibration commands table size
1523 */
1524 if (fw->ucode_capa.standard_phy_calibration_size >
1525 IWL_MAX_PHY_CALIBRATE_TBL_SIZE)
1526 fw->ucode_capa.standard_phy_calibration_size =
1527 IWL_MAX_STANDARD_PHY_CALIBRATE_TBL_SIZE;
1528
1529 /* We have our copies now, allow OS release its copies */
1530 release_firmware(ucode_raw);
1531
1532 mutex_lock(&iwlwifi_opmode_table_mtx);
1533 switch (fw->type) {
1534 case IWL_FW_DVM:
1535 op = &iwlwifi_opmode_table[DVM_OP_MODE];
1536 break;
1537 default:
1538 WARN(1, "Invalid fw type %d\n", fw->type);
1539 fallthrough;
1540 case IWL_FW_MVM:
1541 op = &iwlwifi_opmode_table[MVM_OP_MODE];
1542 break;
1543 }
1544
1545 IWL_INFO(drv, "loaded firmware version %s op_mode %s\n",
1546 drv->fw.fw_version, op->name);
1547
1548 iwl_dbg_tlv_load_bin(drv->trans->dev, drv->trans);
1549
1550 /* add this device to the list of devices using this op_mode */
1551 list_add_tail(&drv->list, &op->drv);
1552
1553 if (op->ops) {
1554 drv->op_mode = _iwl_op_mode_start(drv, op);
1555
1556 if (!drv->op_mode) {
1557 mutex_unlock(&iwlwifi_opmode_table_mtx);
1558 goto out_unbind;
1559 }
1560 } else {
1561 load_module = true;
1562 }
1563 mutex_unlock(&iwlwifi_opmode_table_mtx);
1564
1565 /*
1566 * Complete the firmware request last so that
1567 * a driver unbind (stop) doesn't run while we
1568 * are doing the start() above.
1569 */
1570 complete(&drv->request_firmware_complete);
1571
1572 /*
1573 * Load the module last so we don't block anything
1574 * else from proceeding if the module fails to load
1575 * or hangs loading.
1576 */
1577 if (load_module) {
1578 request_module("%s", op->name);
1579 #ifdef CONFIG_IWLWIFI_OPMODE_MODULAR
1580 if (err)
1581 IWL_ERR(drv,
1582 "failed to load module %s (error %d), is dynamic loading enabled?\n",
1583 op->name, err);
1584 #endif
1585 }
1586 goto free;
1587
1588 try_again:
1589 /* try next, if any */
1590 release_firmware(ucode_raw);
1591 if (iwl_request_firmware(drv, false))
1592 goto out_unbind;
1593 goto free;
1594
1595 out_free_fw:
1596 release_firmware(ucode_raw);
1597 out_unbind:
1598 complete(&drv->request_firmware_complete);
1599 device_release_driver(drv->trans->dev);
1600 free:
1601 if (pieces) {
1602 for (i = 0; i < ARRAY_SIZE(pieces->img); i++)
1603 kfree(pieces->img[i].sec);
1604 kfree(pieces->dbg_mem_tlv);
1605 kfree(pieces);
1606 }
1607 }
1608
iwl_drv_start(struct iwl_trans * trans)1609 struct iwl_drv *iwl_drv_start(struct iwl_trans *trans)
1610 {
1611 struct iwl_drv *drv;
1612 int ret;
1613
1614 drv = kzalloc(sizeof(*drv), GFP_KERNEL);
1615 if (!drv) {
1616 ret = -ENOMEM;
1617 goto err;
1618 }
1619
1620 drv->trans = trans;
1621 drv->dev = trans->dev;
1622
1623 init_completion(&drv->request_firmware_complete);
1624 INIT_LIST_HEAD(&drv->list);
1625
1626 #ifdef CONFIG_IWLWIFI_DEBUGFS
1627 /* Create the device debugfs entries. */
1628 drv->dbgfs_drv = debugfs_create_dir(dev_name(trans->dev),
1629 iwl_dbgfs_root);
1630
1631 /* Create transport layer debugfs dir */
1632 drv->trans->dbgfs_dir = debugfs_create_dir("trans", drv->dbgfs_drv);
1633 #endif
1634
1635 drv->trans->dbg.domains_bitmap = IWL_TRANS_FW_DBG_DOMAIN(drv->trans);
1636
1637 ret = iwl_request_firmware(drv, true);
1638 if (ret) {
1639 IWL_ERR(trans, "Couldn't request the fw\n");
1640 goto err_fw;
1641 }
1642
1643 return drv;
1644
1645 err_fw:
1646 #ifdef CONFIG_IWLWIFI_DEBUGFS
1647 debugfs_remove_recursive(drv->dbgfs_drv);
1648 iwl_dbg_tlv_free(drv->trans);
1649 #endif
1650 kfree(drv);
1651 err:
1652 return ERR_PTR(ret);
1653 }
1654
iwl_drv_stop(struct iwl_drv * drv)1655 void iwl_drv_stop(struct iwl_drv *drv)
1656 {
1657 wait_for_completion(&drv->request_firmware_complete);
1658
1659 _iwl_op_mode_stop(drv);
1660
1661 iwl_dealloc_ucode(drv);
1662
1663 mutex_lock(&iwlwifi_opmode_table_mtx);
1664 /*
1665 * List is empty (this item wasn't added)
1666 * when firmware loading failed -- in that
1667 * case we can't remove it from any list.
1668 */
1669 if (!list_empty(&drv->list))
1670 list_del(&drv->list);
1671 mutex_unlock(&iwlwifi_opmode_table_mtx);
1672
1673 #ifdef CONFIG_IWLWIFI_DEBUGFS
1674 drv->trans->ops->debugfs_cleanup(drv->trans);
1675
1676 debugfs_remove_recursive(drv->dbgfs_drv);
1677 #endif
1678
1679 iwl_dbg_tlv_free(drv->trans);
1680
1681 kfree(drv);
1682 }
1683
1684
1685 /* shared module parameters */
1686 struct iwl_mod_params iwlwifi_mod_params = {
1687 .fw_restart = true,
1688 .bt_coex_active = true,
1689 .power_level = IWL_POWER_INDEX_1,
1690 .uapsd_disable = IWL_DISABLE_UAPSD_BSS | IWL_DISABLE_UAPSD_P2P_CLIENT,
1691 .enable_ini = true,
1692 /* the rest are 0 by default */
1693 };
1694 IWL_EXPORT_SYMBOL(iwlwifi_mod_params);
1695
iwl_opmode_register(const char * name,const struct iwl_op_mode_ops * ops)1696 int iwl_opmode_register(const char *name, const struct iwl_op_mode_ops *ops)
1697 {
1698 int i;
1699 struct iwl_drv *drv;
1700 struct iwlwifi_opmode_table *op;
1701
1702 mutex_lock(&iwlwifi_opmode_table_mtx);
1703 for (i = 0; i < ARRAY_SIZE(iwlwifi_opmode_table); i++) {
1704 op = &iwlwifi_opmode_table[i];
1705 if (strcmp(op->name, name))
1706 continue;
1707 op->ops = ops;
1708 /* TODO: need to handle exceptional case */
1709 list_for_each_entry(drv, &op->drv, list)
1710 drv->op_mode = _iwl_op_mode_start(drv, op);
1711
1712 mutex_unlock(&iwlwifi_opmode_table_mtx);
1713 return 0;
1714 }
1715 mutex_unlock(&iwlwifi_opmode_table_mtx);
1716 return -EIO;
1717 }
1718 IWL_EXPORT_SYMBOL(iwl_opmode_register);
1719
iwl_opmode_deregister(const char * name)1720 void iwl_opmode_deregister(const char *name)
1721 {
1722 int i;
1723 struct iwl_drv *drv;
1724
1725 mutex_lock(&iwlwifi_opmode_table_mtx);
1726 for (i = 0; i < ARRAY_SIZE(iwlwifi_opmode_table); i++) {
1727 if (strcmp(iwlwifi_opmode_table[i].name, name))
1728 continue;
1729 iwlwifi_opmode_table[i].ops = NULL;
1730
1731 /* call the stop routine for all devices */
1732 list_for_each_entry(drv, &iwlwifi_opmode_table[i].drv, list)
1733 _iwl_op_mode_stop(drv);
1734
1735 mutex_unlock(&iwlwifi_opmode_table_mtx);
1736 return;
1737 }
1738 mutex_unlock(&iwlwifi_opmode_table_mtx);
1739 }
1740 IWL_EXPORT_SYMBOL(iwl_opmode_deregister);
1741
iwl_drv_init(void)1742 static int __init iwl_drv_init(void)
1743 {
1744 int i, err;
1745
1746 mutex_init(&iwlwifi_opmode_table_mtx);
1747
1748 for (i = 0; i < ARRAY_SIZE(iwlwifi_opmode_table); i++)
1749 INIT_LIST_HEAD(&iwlwifi_opmode_table[i].drv);
1750
1751 pr_info(DRV_DESCRIPTION "\n");
1752
1753 #ifdef CONFIG_IWLWIFI_DEBUGFS
1754 /* Create the root of iwlwifi debugfs subsystem. */
1755 iwl_dbgfs_root = debugfs_create_dir(DRV_NAME, NULL);
1756 #endif
1757
1758 err = iwl_pci_register_driver();
1759 if (err)
1760 goto cleanup_debugfs;
1761
1762 return 0;
1763
1764 cleanup_debugfs:
1765 #ifdef CONFIG_IWLWIFI_DEBUGFS
1766 debugfs_remove_recursive(iwl_dbgfs_root);
1767 #endif
1768 return err;
1769 }
1770 module_init(iwl_drv_init);
1771
iwl_drv_exit(void)1772 static void __exit iwl_drv_exit(void)
1773 {
1774 iwl_pci_unregister_driver();
1775
1776 #ifdef CONFIG_IWLWIFI_DEBUGFS
1777 debugfs_remove_recursive(iwl_dbgfs_root);
1778 #endif
1779 }
1780 module_exit(iwl_drv_exit);
1781
1782 #ifdef CONFIG_IWLWIFI_DEBUG
1783 module_param_named(debug, iwlwifi_mod_params.debug_level, uint, 0644);
1784 MODULE_PARM_DESC(debug, "debug output mask");
1785 #endif
1786
1787 module_param_named(swcrypto, iwlwifi_mod_params.swcrypto, int, 0444);
1788 MODULE_PARM_DESC(swcrypto, "using crypto in software (default 0 [hardware])");
1789 module_param_named(11n_disable, iwlwifi_mod_params.disable_11n, uint, 0444);
1790 MODULE_PARM_DESC(11n_disable,
1791 "disable 11n functionality, bitmap: 1: full, 2: disable agg TX, 4: disable agg RX, 8 enable agg TX");
1792 module_param_named(amsdu_size, iwlwifi_mod_params.amsdu_size, int, 0444);
1793 MODULE_PARM_DESC(amsdu_size,
1794 "amsdu size 0: 12K for multi Rx queue devices, 2K for AX210 devices, "
1795 "4K for other devices 1:4K 2:8K 3:12K (16K buffers) 4: 2K (default 0)");
1796 module_param_named(fw_restart, iwlwifi_mod_params.fw_restart, bool, 0444);
1797 MODULE_PARM_DESC(fw_restart, "restart firmware in case of error (default true)");
1798
1799 module_param_named(nvm_file, iwlwifi_mod_params.nvm_file, charp, 0444);
1800 MODULE_PARM_DESC(nvm_file, "NVM file name");
1801
1802 module_param_named(uapsd_disable, iwlwifi_mod_params.uapsd_disable, uint, 0644);
1803 MODULE_PARM_DESC(uapsd_disable,
1804 "disable U-APSD functionality bitmap 1: BSS 2: P2P Client (default: 3)");
1805 module_param_named(enable_ini, iwlwifi_mod_params.enable_ini,
1806 bool, S_IRUGO | S_IWUSR);
1807 MODULE_PARM_DESC(enable_ini,
1808 "Enable debug INI TLV FW debug infrastructure (default: true");
1809
1810 /*
1811 * set bt_coex_active to true, uCode will do kill/defer
1812 * every time the priority line is asserted (BT is sending signals on the
1813 * priority line in the PCIx).
1814 * set bt_coex_active to false, uCode will ignore the BT activity and
1815 * perform the normal operation
1816 *
1817 * User might experience transmit issue on some platform due to WiFi/BT
1818 * co-exist problem. The possible behaviors are:
1819 * Able to scan and finding all the available AP
1820 * Not able to associate with any AP
1821 * On those platforms, WiFi communication can be restored by set
1822 * "bt_coex_active" module parameter to "false"
1823 *
1824 * default: bt_coex_active = true (BT_COEX_ENABLE)
1825 */
1826 module_param_named(bt_coex_active, iwlwifi_mod_params.bt_coex_active,
1827 bool, 0444);
1828 MODULE_PARM_DESC(bt_coex_active, "enable wifi/bt co-exist (default: enable)");
1829
1830 module_param_named(led_mode, iwlwifi_mod_params.led_mode, int, 0444);
1831 MODULE_PARM_DESC(led_mode, "0=system default, "
1832 "1=On(RF On)/Off(RF Off), 2=blinking, 3=Off (default: 0)");
1833
1834 module_param_named(power_save, iwlwifi_mod_params.power_save, bool, 0444);
1835 MODULE_PARM_DESC(power_save,
1836 "enable WiFi power management (default: disable)");
1837
1838 module_param_named(power_level, iwlwifi_mod_params.power_level, int, 0444);
1839 MODULE_PARM_DESC(power_level,
1840 "default power save level (range from 1 - 5, default: 1)");
1841
1842 module_param_named(disable_11ac, iwlwifi_mod_params.disable_11ac, bool, 0444);
1843 MODULE_PARM_DESC(disable_11ac, "Disable VHT capabilities (default: false)");
1844
1845 module_param_named(remove_when_gone,
1846 iwlwifi_mod_params.remove_when_gone, bool,
1847 0444);
1848 MODULE_PARM_DESC(remove_when_gone,
1849 "Remove dev from PCIe bus if it is deemed inaccessible (default: false)");
1850
1851 module_param_named(disable_11ax, iwlwifi_mod_params.disable_11ax, bool,
1852 S_IRUGO);
1853 MODULE_PARM_DESC(disable_11ax, "Disable HE capabilities (default: false)");
1854