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1// SPDX-License-Identifier: GPL-2.0 OR BSD-3-Clause
2/*
3 * Copyright (C) 2005-2014, 2018-2024 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"
33MODULE_DESCRIPTION(DRV_DESCRIPTION);
34MODULE_LICENSE("GPL");
35
36#ifdef CONFIG_IWLWIFI_DEBUGFS
37static struct dentry *iwl_dbgfs_root;
38#endif
39
40/**
41 * struct iwl_drv - drv common data
42 * @list: list of drv structures using this opmode
43 * @fw: the iwl_fw structure
44 * @op_mode: the running op_mode
45 * @trans: transport layer
46 * @dev: for debug prints only
47 * @fw_index: firmware revision to try loading
48 * @firmware_name: composite filename of ucode file to load
49 * @request_firmware_complete: the firmware has been obtained from user space
50 * @dbgfs_drv: debugfs root directory entry
51 * @dbgfs_trans: debugfs transport directory entry
52 * @dbgfs_op_mode: debugfs op_mode directory entry
53 */
54struct iwl_drv {
55 struct list_head list;
56 struct iwl_fw fw;
57
58 struct iwl_op_mode *op_mode;
59 struct iwl_trans *trans;
60 struct device *dev;
61
62 int fw_index; /* firmware we're trying to load */
63 char firmware_name[64]; /* name of firmware file to load */
64
65 struct completion request_firmware_complete;
66
67#ifdef CONFIG_IWLWIFI_DEBUGFS
68 struct dentry *dbgfs_drv;
69 struct dentry *dbgfs_trans;
70 struct dentry *dbgfs_op_mode;
71#endif
72};
73
74enum {
75 DVM_OP_MODE,
76 MVM_OP_MODE,
77};
78
79/* Protects the table contents, i.e. the ops pointer & drv list */
80static DEFINE_MUTEX(iwlwifi_opmode_table_mtx);
81static struct iwlwifi_opmode_table {
82 const char *name; /* name: iwldvm, iwlmvm, etc */
83 const struct iwl_op_mode_ops *ops; /* pointer to op_mode ops */
84 struct list_head drv; /* list of devices using this op_mode */
85} iwlwifi_opmode_table[] = { /* ops set when driver is initialized */
86 [DVM_OP_MODE] = { .name = "iwldvm", .ops = NULL },
87 [MVM_OP_MODE] = { .name = "iwlmvm", .ops = NULL },
88};
89
90#define IWL_DEFAULT_SCAN_CHANNELS 40
91
92/*
93 * struct fw_sec: Just for the image parsing process.
94 * For the fw storage we are using struct fw_desc.
95 */
96struct fw_sec {
97 const void *data; /* the sec data */
98 size_t size; /* section size */
99 u32 offset; /* offset of writing in the device */
100};
101
102static void iwl_free_fw_desc(struct iwl_drv *drv, struct fw_desc *desc)
103{
104 vfree(desc->data);
105 desc->data = NULL;
106 desc->len = 0;
107}
108
109static void iwl_free_fw_img(struct iwl_drv *drv, struct fw_img *img)
110{
111 int i;
112 for (i = 0; i < img->num_sec; i++)
113 iwl_free_fw_desc(drv, &img->sec[i]);
114 kfree(img->sec);
115}
116
117static void iwl_dealloc_ucode(struct iwl_drv *drv)
118{
119 int i;
120
121 kfree(drv->fw.dbg.dest_tlv);
122 for (i = 0; i < ARRAY_SIZE(drv->fw.dbg.conf_tlv); i++)
123 kfree(drv->fw.dbg.conf_tlv[i]);
124 for (i = 0; i < ARRAY_SIZE(drv->fw.dbg.trigger_tlv); i++)
125 kfree(drv->fw.dbg.trigger_tlv[i]);
126 kfree(drv->fw.dbg.mem_tlv);
127 kfree(drv->fw.iml);
128 kfree(drv->fw.ucode_capa.cmd_versions);
129 kfree(drv->fw.phy_integration_ver);
130 kfree(drv->trans->dbg.pc_data);
131 drv->trans->dbg.pc_data = NULL;
132
133 for (i = 0; i < IWL_UCODE_TYPE_MAX; i++)
134 iwl_free_fw_img(drv, drv->fw.img + i);
135
136 /* clear the data for the aborted load case */
137 memset(&drv->fw, 0, sizeof(drv->fw));
138}
139
140static int iwl_alloc_fw_desc(struct iwl_drv *drv, struct fw_desc *desc,
141 struct fw_sec *sec)
142{
143 void *data;
144
145 desc->data = NULL;
146
147 if (!sec || !sec->size)
148 return -EINVAL;
149
150 data = vmalloc(sec->size);
151 if (!data)
152 return -ENOMEM;
153
154 desc->len = sec->size;
155 desc->offset = sec->offset;
156 memcpy(data, sec->data, desc->len);
157 desc->data = data;
158
159 return 0;
160}
161
162static inline char iwl_drv_get_step(int step)
163{
164 if (step == SILICON_Z_STEP)
165 return 'z';
166 if (step == SILICON_TC_STEP)
167 return 'a';
168 return 'a' + step;
169}
170
171const char *iwl_drv_get_fwname_pre(struct iwl_trans *trans, char *buf)
172{
173 char mac_step, rf_step;
174 const char *rf, *cdb;
175
176 if (trans->cfg->fw_name_pre)
177 return trans->cfg->fw_name_pre;
178
179 if (WARN_ON(!trans->cfg->fw_name_mac))
180 return "unconfigured";
181
182 mac_step = iwl_drv_get_step(trans->hw_rev_step);
183
184 rf_step = iwl_drv_get_step(CSR_HW_RFID_STEP(trans->hw_rf_id));
185
186 switch (CSR_HW_RFID_TYPE(trans->hw_rf_id)) {
187 case IWL_CFG_RF_TYPE_HR1:
188 case IWL_CFG_RF_TYPE_HR2:
189 rf = "hr";
190 rf_step = 'b';
191 break;
192 case IWL_CFG_RF_TYPE_GF:
193 rf = "gf";
194 break;
195 case IWL_CFG_RF_TYPE_FM:
196 rf = "fm";
197 break;
198 case IWL_CFG_RF_TYPE_WH:
199 if (SILICON_Z_STEP ==
200 CSR_HW_RFID_STEP(trans->hw_rf_id)) {
201 rf = "whtc";
202 rf_step = 'a';
203 } else {
204 rf = "wh";
205 }
206 break;
207 default:
208 return "unknown-rf";
209 }
210
211 cdb = CSR_HW_RFID_IS_CDB(trans->hw_rf_id) ? "4" : "";
212
213 scnprintf(buf, FW_NAME_PRE_BUFSIZE,
214 "iwlwifi-%s-%c0-%s%s-%c0",
215 trans->cfg->fw_name_mac, mac_step,
216 rf, cdb, rf_step);
217
218 return buf;
219}
220IWL_EXPORT_SYMBOL(iwl_drv_get_fwname_pre);
221
222static void iwl_req_fw_callback(const struct firmware *ucode_raw,
223 void *context);
224
225static int iwl_request_firmware(struct iwl_drv *drv, bool first)
226{
227 const struct iwl_cfg *cfg = drv->trans->cfg;
228 char _fw_name_pre[FW_NAME_PRE_BUFSIZE];
229 const char *fw_name_pre;
230
231 if (drv->trans->trans_cfg->device_family == IWL_DEVICE_FAMILY_9000 &&
232 (drv->trans->hw_rev_step != SILICON_B_STEP &&
233 drv->trans->hw_rev_step != SILICON_C_STEP)) {
234 IWL_ERR(drv,
235 "Only HW steps B and C are currently supported (0x%0x)\n",
236 drv->trans->hw_rev);
237 return -EINVAL;
238 }
239
240 fw_name_pre = iwl_drv_get_fwname_pre(drv->trans, _fw_name_pre);
241
242 if (first)
243 drv->fw_index = cfg->ucode_api_max;
244 else
245 drv->fw_index--;
246
247 if (drv->fw_index < cfg->ucode_api_min) {
248 IWL_ERR(drv, "no suitable firmware found!\n");
249
250 if (cfg->ucode_api_min == cfg->ucode_api_max) {
251 IWL_ERR(drv, "%s-%d is required\n", fw_name_pre,
252 cfg->ucode_api_max);
253 } else {
254 IWL_ERR(drv, "minimum version required: %s-%d\n",
255 fw_name_pre, cfg->ucode_api_min);
256 IWL_ERR(drv, "maximum version supported: %s-%d\n",
257 fw_name_pre, cfg->ucode_api_max);
258 }
259
260 IWL_ERR(drv,
261 "check git://git.kernel.org/pub/scm/linux/kernel/git/firmware/linux-firmware.git\n");
262 return -ENOENT;
263 }
264
265 snprintf(drv->firmware_name, sizeof(drv->firmware_name), "%s-%d.ucode",
266 fw_name_pre, drv->fw_index);
267
268 IWL_DEBUG_FW_INFO(drv, "attempting to load firmware '%s'\n",
269 drv->firmware_name);
270
271 return request_firmware_nowait(THIS_MODULE, 1, drv->firmware_name,
272 drv->trans->dev,
273 GFP_KERNEL, drv, iwl_req_fw_callback);
274}
275
276struct fw_img_parsing {
277 struct fw_sec *sec;
278 int sec_counter;
279};
280
281/*
282 * struct fw_sec_parsing: to extract fw section and it's offset from tlv
283 */
284struct fw_sec_parsing {
285 __le32 offset;
286 const u8 data[];
287} __packed;
288
289/**
290 * struct iwl_tlv_calib_data - parse the default calib data from TLV
291 *
292 * @ucode_type: the uCode to which the following default calib relates.
293 * @calib: default calibrations.
294 */
295struct iwl_tlv_calib_data {
296 __le32 ucode_type;
297 struct iwl_tlv_calib_ctrl calib;
298} __packed;
299
300struct iwl_firmware_pieces {
301 struct fw_img_parsing img[IWL_UCODE_TYPE_MAX];
302
303 u32 init_evtlog_ptr, init_evtlog_size, init_errlog_ptr;
304 u32 inst_evtlog_ptr, inst_evtlog_size, inst_errlog_ptr;
305
306 /* FW debug data parsed for driver usage */
307 bool dbg_dest_tlv_init;
308 const u8 *dbg_dest_ver;
309 union {
310 const struct iwl_fw_dbg_dest_tlv *dbg_dest_tlv;
311 const struct iwl_fw_dbg_dest_tlv_v1 *dbg_dest_tlv_v1;
312 };
313 const struct iwl_fw_dbg_conf_tlv *dbg_conf_tlv[FW_DBG_CONF_MAX];
314 size_t dbg_conf_tlv_len[FW_DBG_CONF_MAX];
315 const struct iwl_fw_dbg_trigger_tlv *dbg_trigger_tlv[FW_DBG_TRIGGER_MAX];
316 size_t dbg_trigger_tlv_len[FW_DBG_TRIGGER_MAX];
317 struct iwl_fw_dbg_mem_seg_tlv *dbg_mem_tlv;
318 size_t n_mem_tlv;
319};
320
321/*
322 * These functions are just to extract uCode section data from the pieces
323 * structure.
324 */
325static struct fw_sec *get_sec(struct iwl_firmware_pieces *pieces,
326 enum iwl_ucode_type type,
327 int sec)
328{
329 return &pieces->img[type].sec[sec];
330}
331
332static void alloc_sec_data(struct iwl_firmware_pieces *pieces,
333 enum iwl_ucode_type type,
334 int sec)
335{
336 struct fw_img_parsing *img = &pieces->img[type];
337 struct fw_sec *sec_memory;
338 int size = sec + 1;
339 size_t alloc_size = sizeof(*img->sec) * size;
340
341 if (img->sec && img->sec_counter >= size)
342 return;
343
344 sec_memory = krealloc(img->sec, alloc_size, GFP_KERNEL);
345 if (!sec_memory)
346 return;
347
348 img->sec = sec_memory;
349 img->sec_counter = size;
350}
351
352static void set_sec_data(struct iwl_firmware_pieces *pieces,
353 enum iwl_ucode_type type,
354 int sec,
355 const void *data)
356{
357 alloc_sec_data(pieces, type, sec);
358
359 pieces->img[type].sec[sec].data = data;
360}
361
362static void set_sec_size(struct iwl_firmware_pieces *pieces,
363 enum iwl_ucode_type type,
364 int sec,
365 size_t size)
366{
367 alloc_sec_data(pieces, type, sec);
368
369 pieces->img[type].sec[sec].size = size;
370}
371
372static size_t get_sec_size(struct iwl_firmware_pieces *pieces,
373 enum iwl_ucode_type type,
374 int sec)
375{
376 return pieces->img[type].sec[sec].size;
377}
378
379static void set_sec_offset(struct iwl_firmware_pieces *pieces,
380 enum iwl_ucode_type type,
381 int sec,
382 u32 offset)
383{
384 alloc_sec_data(pieces, type, sec);
385
386 pieces->img[type].sec[sec].offset = offset;
387}
388
389/*
390 * Gets uCode section from tlv.
391 */
392static int iwl_store_ucode_sec(struct iwl_firmware_pieces *pieces,
393 const void *data, enum iwl_ucode_type type,
394 int size)
395{
396 struct fw_img_parsing *img;
397 struct fw_sec *sec;
398 const struct fw_sec_parsing *sec_parse;
399 size_t alloc_size;
400
401 if (WARN_ON(!pieces || !data || type >= IWL_UCODE_TYPE_MAX))
402 return -1;
403
404 sec_parse = (const struct fw_sec_parsing *)data;
405
406 img = &pieces->img[type];
407
408 alloc_size = sizeof(*img->sec) * (img->sec_counter + 1);
409 sec = krealloc(img->sec, alloc_size, GFP_KERNEL);
410 if (!sec)
411 return -ENOMEM;
412 img->sec = sec;
413
414 sec = &img->sec[img->sec_counter];
415
416 sec->offset = le32_to_cpu(sec_parse->offset);
417 sec->data = sec_parse->data;
418 sec->size = size - sizeof(sec_parse->offset);
419
420 ++img->sec_counter;
421
422 return 0;
423}
424
425static int iwl_set_default_calib(struct iwl_drv *drv, const u8 *data)
426{
427 const struct iwl_tlv_calib_data *def_calib =
428 (const struct iwl_tlv_calib_data *)data;
429 u32 ucode_type = le32_to_cpu(def_calib->ucode_type);
430 if (ucode_type >= IWL_UCODE_TYPE_MAX) {
431 IWL_ERR(drv, "Wrong ucode_type %u for default calibration.\n",
432 ucode_type);
433 return -EINVAL;
434 }
435 drv->fw.default_calib[ucode_type].flow_trigger =
436 def_calib->calib.flow_trigger;
437 drv->fw.default_calib[ucode_type].event_trigger =
438 def_calib->calib.event_trigger;
439
440 return 0;
441}
442
443static void iwl_set_ucode_api_flags(struct iwl_drv *drv, const u8 *data,
444 struct iwl_ucode_capabilities *capa)
445{
446 const struct iwl_ucode_api *ucode_api = (const void *)data;
447 u32 api_index = le32_to_cpu(ucode_api->api_index);
448 u32 api_flags = le32_to_cpu(ucode_api->api_flags);
449 int i;
450
451 if (api_index >= DIV_ROUND_UP(NUM_IWL_UCODE_TLV_API, 32)) {
452 IWL_WARN(drv,
453 "api flags index %d larger than supported by driver\n",
454 api_index);
455 return;
456 }
457
458 for (i = 0; i < 32; i++) {
459 if (api_flags & BIT(i))
460 __set_bit(i + 32 * api_index, capa->_api);
461 }
462}
463
464static void iwl_set_ucode_capabilities(struct iwl_drv *drv, const u8 *data,
465 struct iwl_ucode_capabilities *capa)
466{
467 const struct iwl_ucode_capa *ucode_capa = (const void *)data;
468 u32 api_index = le32_to_cpu(ucode_capa->api_index);
469 u32 api_flags = le32_to_cpu(ucode_capa->api_capa);
470 int i;
471
472 if (api_index >= DIV_ROUND_UP(NUM_IWL_UCODE_TLV_CAPA, 32)) {
473 IWL_WARN(drv,
474 "capa flags index %d larger than supported by driver\n",
475 api_index);
476 return;
477 }
478
479 for (i = 0; i < 32; i++) {
480 if (api_flags & BIT(i))
481 __set_bit(i + 32 * api_index, capa->_capa);
482 }
483}
484
485static const char *iwl_reduced_fw_name(struct iwl_drv *drv)
486{
487 const char *name = drv->firmware_name;
488
489 if (strncmp(name, "iwlwifi-", 8) == 0)
490 name += 8;
491
492 return name;
493}
494
495static int iwl_parse_v1_v2_firmware(struct iwl_drv *drv,
496 const struct firmware *ucode_raw,
497 struct iwl_firmware_pieces *pieces)
498{
499 const struct iwl_ucode_header *ucode = (const 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 %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, iwl_reduced_fw_name(drv));
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
594static void iwl_drv_set_dump_exclude(struct iwl_drv *drv,
595 enum iwl_ucode_tlv_type tlv_type,
596 const void *tlv_data, u32 tlv_len)
597{
598 const struct iwl_fw_dump_exclude *fw = tlv_data;
599 struct iwl_dump_exclude *excl;
600
601 if (tlv_len < sizeof(*fw))
602 return;
603
604 if (tlv_type == IWL_UCODE_TLV_SEC_TABLE_ADDR) {
605 excl = &drv->fw.dump_excl[0];
606
607 /* second time we find this, it's for WoWLAN */
608 if (excl->addr)
609 excl = &drv->fw.dump_excl_wowlan[0];
610 } else if (fw_has_capa(&drv->fw.ucode_capa,
611 IWL_UCODE_TLV_CAPA_CNSLDTD_D3_D0_IMG)) {
612 /* IWL_UCODE_TLV_D3_KEK_KCK_ADDR is regular image */
613 excl = &drv->fw.dump_excl[0];
614 } else {
615 /* IWL_UCODE_TLV_D3_KEK_KCK_ADDR is WoWLAN image */
616 excl = &drv->fw.dump_excl_wowlan[0];
617 }
618
619 if (excl->addr)
620 excl++;
621
622 if (excl->addr) {
623 IWL_DEBUG_FW_INFO(drv, "found too many excludes in fw file\n");
624 return;
625 }
626
627 excl->addr = le32_to_cpu(fw->addr) & ~FW_ADDR_CACHE_CONTROL;
628 excl->size = le32_to_cpu(fw->size);
629}
630
631static void iwl_parse_dbg_tlv_assert_tables(struct iwl_drv *drv,
632 const struct iwl_ucode_tlv *tlv)
633{
634 const struct iwl_fw_ini_region_tlv *region;
635 u32 length = le32_to_cpu(tlv->length);
636 u32 addr;
637
638 if (length < offsetof(typeof(*region), special_mem) +
639 sizeof(region->special_mem))
640 return;
641
642 region = (const void *)tlv->data;
643 addr = le32_to_cpu(region->special_mem.base_addr);
644 addr += le32_to_cpu(region->special_mem.offset);
645 addr &= ~FW_ADDR_CACHE_CONTROL;
646
647 if (region->type != IWL_FW_INI_REGION_SPECIAL_DEVICE_MEMORY)
648 return;
649
650 switch (region->sub_type) {
651 case IWL_FW_INI_REGION_DEVICE_MEMORY_SUBTYPE_UMAC_ERROR_TABLE:
652 drv->trans->dbg.umac_error_event_table = addr;
653 drv->trans->dbg.error_event_table_tlv_status |=
654 IWL_ERROR_EVENT_TABLE_UMAC;
655 break;
656 case IWL_FW_INI_REGION_DEVICE_MEMORY_SUBTYPE_LMAC_1_ERROR_TABLE:
657 drv->trans->dbg.lmac_error_event_table[0] = addr;
658 drv->trans->dbg.error_event_table_tlv_status |=
659 IWL_ERROR_EVENT_TABLE_LMAC1;
660 break;
661 case IWL_FW_INI_REGION_DEVICE_MEMORY_SUBTYPE_LMAC_2_ERROR_TABLE:
662 drv->trans->dbg.lmac_error_event_table[1] = addr;
663 drv->trans->dbg.error_event_table_tlv_status |=
664 IWL_ERROR_EVENT_TABLE_LMAC2;
665 break;
666 case IWL_FW_INI_REGION_DEVICE_MEMORY_SUBTYPE_TCM_1_ERROR_TABLE:
667 drv->trans->dbg.tcm_error_event_table[0] = addr;
668 drv->trans->dbg.error_event_table_tlv_status |=
669 IWL_ERROR_EVENT_TABLE_TCM1;
670 break;
671 case IWL_FW_INI_REGION_DEVICE_MEMORY_SUBTYPE_TCM_2_ERROR_TABLE:
672 drv->trans->dbg.tcm_error_event_table[1] = addr;
673 drv->trans->dbg.error_event_table_tlv_status |=
674 IWL_ERROR_EVENT_TABLE_TCM2;
675 break;
676 case IWL_FW_INI_REGION_DEVICE_MEMORY_SUBTYPE_RCM_1_ERROR_TABLE:
677 drv->trans->dbg.rcm_error_event_table[0] = addr;
678 drv->trans->dbg.error_event_table_tlv_status |=
679 IWL_ERROR_EVENT_TABLE_RCM1;
680 break;
681 case IWL_FW_INI_REGION_DEVICE_MEMORY_SUBTYPE_RCM_2_ERROR_TABLE:
682 drv->trans->dbg.rcm_error_event_table[1] = addr;
683 drv->trans->dbg.error_event_table_tlv_status |=
684 IWL_ERROR_EVENT_TABLE_RCM2;
685 break;
686 default:
687 break;
688 }
689}
690
691static int iwl_parse_tlv_firmware(struct iwl_drv *drv,
692 const struct firmware *ucode_raw,
693 struct iwl_firmware_pieces *pieces,
694 struct iwl_ucode_capabilities *capa,
695 bool *usniffer_images)
696{
697 const struct iwl_tlv_ucode_header *ucode = (const void *)ucode_raw->data;
698 const struct iwl_ucode_tlv *tlv;
699 size_t len = ucode_raw->size;
700 const u8 *data;
701 u32 tlv_len;
702 u32 usniffer_img;
703 enum iwl_ucode_tlv_type tlv_type;
704 const u8 *tlv_data;
705 char buildstr[25];
706 u32 build, paging_mem_size;
707 int num_of_cpus;
708 bool usniffer_req = false;
709
710 if (len < sizeof(*ucode)) {
711 IWL_ERR(drv, "uCode has invalid length: %zd\n", len);
712 return -EINVAL;
713 }
714
715 if (ucode->magic != cpu_to_le32(IWL_TLV_UCODE_MAGIC)) {
716 IWL_ERR(drv, "invalid uCode magic: 0X%x\n",
717 le32_to_cpu(ucode->magic));
718 return -EINVAL;
719 }
720
721 drv->fw.ucode_ver = le32_to_cpu(ucode->ver);
722 memcpy(drv->fw.human_readable, ucode->human_readable,
723 sizeof(drv->fw.human_readable));
724 build = le32_to_cpu(ucode->build);
725
726 if (build)
727 sprintf(buildstr, " build %u", build);
728 else
729 buildstr[0] = '\0';
730
731 snprintf(drv->fw.fw_version,
732 sizeof(drv->fw.fw_version),
733 "%u.%u.%u.%u%s %s",
734 IWL_UCODE_MAJOR(drv->fw.ucode_ver),
735 IWL_UCODE_MINOR(drv->fw.ucode_ver),
736 IWL_UCODE_API(drv->fw.ucode_ver),
737 IWL_UCODE_SERIAL(drv->fw.ucode_ver),
738 buildstr, iwl_reduced_fw_name(drv));
739
740 data = ucode->data;
741
742 len -= sizeof(*ucode);
743
744 while (len >= sizeof(*tlv)) {
745 len -= sizeof(*tlv);
746
747 tlv = (const void *)data;
748 tlv_len = le32_to_cpu(tlv->length);
749 tlv_type = le32_to_cpu(tlv->type);
750 tlv_data = tlv->data;
751
752 if (len < tlv_len) {
753 IWL_ERR(drv, "invalid TLV len: %zd/%u\n",
754 len, tlv_len);
755 return -EINVAL;
756 }
757 len -= ALIGN(tlv_len, 4);
758 data += sizeof(*tlv) + ALIGN(tlv_len, 4);
759
760 switch (tlv_type) {
761 case IWL_UCODE_TLV_INST:
762 set_sec_data(pieces, IWL_UCODE_REGULAR,
763 IWL_UCODE_SECTION_INST, tlv_data);
764 set_sec_size(pieces, IWL_UCODE_REGULAR,
765 IWL_UCODE_SECTION_INST, tlv_len);
766 set_sec_offset(pieces, IWL_UCODE_REGULAR,
767 IWL_UCODE_SECTION_INST,
768 IWLAGN_RTC_INST_LOWER_BOUND);
769 break;
770 case IWL_UCODE_TLV_DATA:
771 set_sec_data(pieces, IWL_UCODE_REGULAR,
772 IWL_UCODE_SECTION_DATA, tlv_data);
773 set_sec_size(pieces, IWL_UCODE_REGULAR,
774 IWL_UCODE_SECTION_DATA, tlv_len);
775 set_sec_offset(pieces, IWL_UCODE_REGULAR,
776 IWL_UCODE_SECTION_DATA,
777 IWLAGN_RTC_DATA_LOWER_BOUND);
778 break;
779 case IWL_UCODE_TLV_INIT:
780 set_sec_data(pieces, IWL_UCODE_INIT,
781 IWL_UCODE_SECTION_INST, tlv_data);
782 set_sec_size(pieces, IWL_UCODE_INIT,
783 IWL_UCODE_SECTION_INST, tlv_len);
784 set_sec_offset(pieces, IWL_UCODE_INIT,
785 IWL_UCODE_SECTION_INST,
786 IWLAGN_RTC_INST_LOWER_BOUND);
787 break;
788 case IWL_UCODE_TLV_INIT_DATA:
789 set_sec_data(pieces, IWL_UCODE_INIT,
790 IWL_UCODE_SECTION_DATA, tlv_data);
791 set_sec_size(pieces, IWL_UCODE_INIT,
792 IWL_UCODE_SECTION_DATA, tlv_len);
793 set_sec_offset(pieces, IWL_UCODE_INIT,
794 IWL_UCODE_SECTION_DATA,
795 IWLAGN_RTC_DATA_LOWER_BOUND);
796 break;
797 case IWL_UCODE_TLV_BOOT:
798 IWL_ERR(drv, "Found unexpected BOOT ucode\n");
799 break;
800 case IWL_UCODE_TLV_PROBE_MAX_LEN:
801 if (tlv_len != sizeof(u32))
802 goto invalid_tlv_len;
803 capa->max_probe_length =
804 le32_to_cpup((const __le32 *)tlv_data);
805 break;
806 case IWL_UCODE_TLV_PAN:
807 if (tlv_len)
808 goto invalid_tlv_len;
809 capa->flags |= IWL_UCODE_TLV_FLAGS_PAN;
810 break;
811 case IWL_UCODE_TLV_FLAGS:
812 /* must be at least one u32 */
813 if (tlv_len < sizeof(u32))
814 goto invalid_tlv_len;
815 /* and a proper number of u32s */
816 if (tlv_len % sizeof(u32))
817 goto invalid_tlv_len;
818 /*
819 * This driver only reads the first u32 as
820 * right now no more features are defined,
821 * if that changes then either the driver
822 * will not work with the new firmware, or
823 * it'll not take advantage of new features.
824 */
825 capa->flags = le32_to_cpup((const __le32 *)tlv_data);
826 break;
827 case IWL_UCODE_TLV_API_CHANGES_SET:
828 if (tlv_len != sizeof(struct iwl_ucode_api))
829 goto invalid_tlv_len;
830 iwl_set_ucode_api_flags(drv, tlv_data, capa);
831 break;
832 case IWL_UCODE_TLV_ENABLED_CAPABILITIES:
833 if (tlv_len != sizeof(struct iwl_ucode_capa))
834 goto invalid_tlv_len;
835 iwl_set_ucode_capabilities(drv, tlv_data, capa);
836 break;
837 case IWL_UCODE_TLV_INIT_EVTLOG_PTR:
838 if (tlv_len != sizeof(u32))
839 goto invalid_tlv_len;
840 pieces->init_evtlog_ptr =
841 le32_to_cpup((const __le32 *)tlv_data);
842 break;
843 case IWL_UCODE_TLV_INIT_EVTLOG_SIZE:
844 if (tlv_len != sizeof(u32))
845 goto invalid_tlv_len;
846 pieces->init_evtlog_size =
847 le32_to_cpup((const __le32 *)tlv_data);
848 break;
849 case IWL_UCODE_TLV_INIT_ERRLOG_PTR:
850 if (tlv_len != sizeof(u32))
851 goto invalid_tlv_len;
852 pieces->init_errlog_ptr =
853 le32_to_cpup((const __le32 *)tlv_data);
854 break;
855 case IWL_UCODE_TLV_RUNT_EVTLOG_PTR:
856 if (tlv_len != sizeof(u32))
857 goto invalid_tlv_len;
858 pieces->inst_evtlog_ptr =
859 le32_to_cpup((const __le32 *)tlv_data);
860 break;
861 case IWL_UCODE_TLV_RUNT_EVTLOG_SIZE:
862 if (tlv_len != sizeof(u32))
863 goto invalid_tlv_len;
864 pieces->inst_evtlog_size =
865 le32_to_cpup((const __le32 *)tlv_data);
866 break;
867 case IWL_UCODE_TLV_RUNT_ERRLOG_PTR:
868 if (tlv_len != sizeof(u32))
869 goto invalid_tlv_len;
870 pieces->inst_errlog_ptr =
871 le32_to_cpup((const __le32 *)tlv_data);
872 break;
873 case IWL_UCODE_TLV_ENHANCE_SENS_TBL:
874 if (tlv_len)
875 goto invalid_tlv_len;
876 drv->fw.enhance_sensitivity_table = true;
877 break;
878 case IWL_UCODE_TLV_WOWLAN_INST:
879 set_sec_data(pieces, IWL_UCODE_WOWLAN,
880 IWL_UCODE_SECTION_INST, tlv_data);
881 set_sec_size(pieces, IWL_UCODE_WOWLAN,
882 IWL_UCODE_SECTION_INST, tlv_len);
883 set_sec_offset(pieces, IWL_UCODE_WOWLAN,
884 IWL_UCODE_SECTION_INST,
885 IWLAGN_RTC_INST_LOWER_BOUND);
886 break;
887 case IWL_UCODE_TLV_WOWLAN_DATA:
888 set_sec_data(pieces, IWL_UCODE_WOWLAN,
889 IWL_UCODE_SECTION_DATA, tlv_data);
890 set_sec_size(pieces, IWL_UCODE_WOWLAN,
891 IWL_UCODE_SECTION_DATA, tlv_len);
892 set_sec_offset(pieces, IWL_UCODE_WOWLAN,
893 IWL_UCODE_SECTION_DATA,
894 IWLAGN_RTC_DATA_LOWER_BOUND);
895 break;
896 case IWL_UCODE_TLV_PHY_CALIBRATION_SIZE:
897 if (tlv_len != sizeof(u32))
898 goto invalid_tlv_len;
899 capa->standard_phy_calibration_size =
900 le32_to_cpup((const __le32 *)tlv_data);
901 break;
902 case IWL_UCODE_TLV_SEC_RT:
903 iwl_store_ucode_sec(pieces, tlv_data, IWL_UCODE_REGULAR,
904 tlv_len);
905 drv->fw.type = IWL_FW_MVM;
906 break;
907 case IWL_UCODE_TLV_SEC_INIT:
908 iwl_store_ucode_sec(pieces, tlv_data, IWL_UCODE_INIT,
909 tlv_len);
910 drv->fw.type = IWL_FW_MVM;
911 break;
912 case IWL_UCODE_TLV_SEC_WOWLAN:
913 iwl_store_ucode_sec(pieces, tlv_data, IWL_UCODE_WOWLAN,
914 tlv_len);
915 drv->fw.type = IWL_FW_MVM;
916 break;
917 case IWL_UCODE_TLV_DEF_CALIB:
918 if (tlv_len != sizeof(struct iwl_tlv_calib_data))
919 goto invalid_tlv_len;
920 if (iwl_set_default_calib(drv, tlv_data))
921 goto tlv_error;
922 break;
923 case IWL_UCODE_TLV_PHY_SKU:
924 if (tlv_len != sizeof(u32))
925 goto invalid_tlv_len;
926 drv->fw.phy_config = le32_to_cpup((const __le32 *)tlv_data);
927 drv->fw.valid_tx_ant = (drv->fw.phy_config &
928 FW_PHY_CFG_TX_CHAIN) >>
929 FW_PHY_CFG_TX_CHAIN_POS;
930 drv->fw.valid_rx_ant = (drv->fw.phy_config &
931 FW_PHY_CFG_RX_CHAIN) >>
932 FW_PHY_CFG_RX_CHAIN_POS;
933 break;
934 case IWL_UCODE_TLV_SECURE_SEC_RT:
935 iwl_store_ucode_sec(pieces, tlv_data, IWL_UCODE_REGULAR,
936 tlv_len);
937 drv->fw.type = IWL_FW_MVM;
938 break;
939 case IWL_UCODE_TLV_SECURE_SEC_INIT:
940 iwl_store_ucode_sec(pieces, tlv_data, IWL_UCODE_INIT,
941 tlv_len);
942 drv->fw.type = IWL_FW_MVM;
943 break;
944 case IWL_UCODE_TLV_SECURE_SEC_WOWLAN:
945 iwl_store_ucode_sec(pieces, tlv_data, IWL_UCODE_WOWLAN,
946 tlv_len);
947 drv->fw.type = IWL_FW_MVM;
948 break;
949 case IWL_UCODE_TLV_NUM_OF_CPU:
950 if (tlv_len != sizeof(u32))
951 goto invalid_tlv_len;
952 num_of_cpus =
953 le32_to_cpup((const __le32 *)tlv_data);
954
955 if (num_of_cpus == 2) {
956 drv->fw.img[IWL_UCODE_REGULAR].is_dual_cpus =
957 true;
958 drv->fw.img[IWL_UCODE_INIT].is_dual_cpus =
959 true;
960 drv->fw.img[IWL_UCODE_WOWLAN].is_dual_cpus =
961 true;
962 } else if ((num_of_cpus > 2) || (num_of_cpus < 1)) {
963 IWL_ERR(drv, "Driver support up to 2 CPUs\n");
964 return -EINVAL;
965 }
966 break;
967 case IWL_UCODE_TLV_N_SCAN_CHANNELS:
968 if (tlv_len != sizeof(u32))
969 goto invalid_tlv_len;
970 capa->n_scan_channels =
971 le32_to_cpup((const __le32 *)tlv_data);
972 break;
973 case IWL_UCODE_TLV_FW_VERSION: {
974 const __le32 *ptr = (const void *)tlv_data;
975 u32 major, minor;
976 u8 local_comp;
977
978 if (tlv_len != sizeof(u32) * 3)
979 goto invalid_tlv_len;
980
981 major = le32_to_cpup(ptr++);
982 minor = le32_to_cpup(ptr++);
983 local_comp = le32_to_cpup(ptr);
984
985 snprintf(drv->fw.fw_version,
986 sizeof(drv->fw.fw_version),
987 "%u.%08x.%u %s", major, minor,
988 local_comp, iwl_reduced_fw_name(drv));
989 break;
990 }
991 case IWL_UCODE_TLV_FW_DBG_DEST: {
992 const struct iwl_fw_dbg_dest_tlv *dest = NULL;
993 const struct iwl_fw_dbg_dest_tlv_v1 *dest_v1 = NULL;
994 u8 mon_mode;
995
996 pieces->dbg_dest_ver = (const u8 *)tlv_data;
997 if (*pieces->dbg_dest_ver == 1) {
998 dest = (const void *)tlv_data;
999 } else if (*pieces->dbg_dest_ver == 0) {
1000 dest_v1 = (const void *)tlv_data;
1001 } else {
1002 IWL_ERR(drv,
1003 "The version is %d, and it is invalid\n",
1004 *pieces->dbg_dest_ver);
1005 break;
1006 }
1007
1008 if (pieces->dbg_dest_tlv_init) {
1009 IWL_ERR(drv,
1010 "dbg destination ignored, already exists\n");
1011 break;
1012 }
1013
1014 pieces->dbg_dest_tlv_init = true;
1015
1016 if (dest_v1) {
1017 pieces->dbg_dest_tlv_v1 = dest_v1;
1018 mon_mode = dest_v1->monitor_mode;
1019 } else {
1020 pieces->dbg_dest_tlv = dest;
1021 mon_mode = dest->monitor_mode;
1022 }
1023
1024 IWL_INFO(drv, "Found debug destination: %s\n",
1025 get_fw_dbg_mode_string(mon_mode));
1026
1027 drv->fw.dbg.n_dest_reg = (dest_v1) ?
1028 tlv_len -
1029 offsetof(struct iwl_fw_dbg_dest_tlv_v1,
1030 reg_ops) :
1031 tlv_len -
1032 offsetof(struct iwl_fw_dbg_dest_tlv,
1033 reg_ops);
1034
1035 drv->fw.dbg.n_dest_reg /=
1036 sizeof(drv->fw.dbg.dest_tlv->reg_ops[0]);
1037
1038 break;
1039 }
1040 case IWL_UCODE_TLV_FW_DBG_CONF: {
1041 const struct iwl_fw_dbg_conf_tlv *conf =
1042 (const void *)tlv_data;
1043
1044 if (!pieces->dbg_dest_tlv_init) {
1045 IWL_ERR(drv,
1046 "Ignore dbg config %d - no destination configured\n",
1047 conf->id);
1048 break;
1049 }
1050
1051 if (conf->id >= ARRAY_SIZE(drv->fw.dbg.conf_tlv)) {
1052 IWL_ERR(drv,
1053 "Skip unknown configuration: %d\n",
1054 conf->id);
1055 break;
1056 }
1057
1058 if (pieces->dbg_conf_tlv[conf->id]) {
1059 IWL_ERR(drv,
1060 "Ignore duplicate dbg config %d\n",
1061 conf->id);
1062 break;
1063 }
1064
1065 if (conf->usniffer)
1066 usniffer_req = true;
1067
1068 IWL_INFO(drv, "Found debug configuration: %d\n",
1069 conf->id);
1070
1071 pieces->dbg_conf_tlv[conf->id] = conf;
1072 pieces->dbg_conf_tlv_len[conf->id] = tlv_len;
1073 break;
1074 }
1075 case IWL_UCODE_TLV_FW_DBG_TRIGGER: {
1076 const struct iwl_fw_dbg_trigger_tlv *trigger =
1077 (const void *)tlv_data;
1078 u32 trigger_id = le32_to_cpu(trigger->id);
1079
1080 if (trigger_id >= ARRAY_SIZE(drv->fw.dbg.trigger_tlv)) {
1081 IWL_ERR(drv,
1082 "Skip unknown trigger: %u\n",
1083 trigger->id);
1084 break;
1085 }
1086
1087 if (pieces->dbg_trigger_tlv[trigger_id]) {
1088 IWL_ERR(drv,
1089 "Ignore duplicate dbg trigger %u\n",
1090 trigger->id);
1091 break;
1092 }
1093
1094 IWL_INFO(drv, "Found debug trigger: %u\n", trigger->id);
1095
1096 pieces->dbg_trigger_tlv[trigger_id] = trigger;
1097 pieces->dbg_trigger_tlv_len[trigger_id] = tlv_len;
1098 break;
1099 }
1100 case IWL_UCODE_TLV_FW_DBG_DUMP_LST: {
1101 if (tlv_len != sizeof(u32)) {
1102 IWL_ERR(drv,
1103 "dbg lst mask size incorrect, skip\n");
1104 break;
1105 }
1106
1107 drv->fw.dbg.dump_mask =
1108 le32_to_cpup((const __le32 *)tlv_data);
1109 break;
1110 }
1111 case IWL_UCODE_TLV_SEC_RT_USNIFFER:
1112 *usniffer_images = true;
1113 iwl_store_ucode_sec(pieces, tlv_data,
1114 IWL_UCODE_REGULAR_USNIFFER,
1115 tlv_len);
1116 break;
1117 case IWL_UCODE_TLV_PAGING:
1118 if (tlv_len != sizeof(u32))
1119 goto invalid_tlv_len;
1120 paging_mem_size = le32_to_cpup((const __le32 *)tlv_data);
1121
1122 IWL_DEBUG_FW(drv,
1123 "Paging: paging enabled (size = %u bytes)\n",
1124 paging_mem_size);
1125
1126 if (paging_mem_size > MAX_PAGING_IMAGE_SIZE) {
1127 IWL_ERR(drv,
1128 "Paging: driver supports up to %lu bytes for paging image\n",
1129 MAX_PAGING_IMAGE_SIZE);
1130 return -EINVAL;
1131 }
1132
1133 if (paging_mem_size & (FW_PAGING_SIZE - 1)) {
1134 IWL_ERR(drv,
1135 "Paging: image isn't multiple %lu\n",
1136 FW_PAGING_SIZE);
1137 return -EINVAL;
1138 }
1139
1140 drv->fw.img[IWL_UCODE_REGULAR].paging_mem_size =
1141 paging_mem_size;
1142 usniffer_img = IWL_UCODE_REGULAR_USNIFFER;
1143 drv->fw.img[usniffer_img].paging_mem_size =
1144 paging_mem_size;
1145 break;
1146 case IWL_UCODE_TLV_FW_GSCAN_CAPA:
1147 /* ignored */
1148 break;
1149 case IWL_UCODE_TLV_FW_MEM_SEG: {
1150 const struct iwl_fw_dbg_mem_seg_tlv *dbg_mem =
1151 (const void *)tlv_data;
1152 size_t size;
1153 struct iwl_fw_dbg_mem_seg_tlv *n;
1154
1155 if (tlv_len != (sizeof(*dbg_mem)))
1156 goto invalid_tlv_len;
1157
1158 IWL_DEBUG_INFO(drv, "Found debug memory segment: %u\n",
1159 dbg_mem->data_type);
1160
1161 size = sizeof(*pieces->dbg_mem_tlv) *
1162 (pieces->n_mem_tlv + 1);
1163 n = krealloc(pieces->dbg_mem_tlv, size, GFP_KERNEL);
1164 if (!n)
1165 return -ENOMEM;
1166 pieces->dbg_mem_tlv = n;
1167 pieces->dbg_mem_tlv[pieces->n_mem_tlv] = *dbg_mem;
1168 pieces->n_mem_tlv++;
1169 break;
1170 }
1171 case IWL_UCODE_TLV_IML: {
1172 drv->fw.iml_len = tlv_len;
1173 drv->fw.iml = kmemdup(tlv_data, tlv_len, GFP_KERNEL);
1174 if (!drv->fw.iml)
1175 return -ENOMEM;
1176 break;
1177 }
1178 case IWL_UCODE_TLV_FW_RECOVERY_INFO: {
1179 const struct {
1180 __le32 buf_addr;
1181 __le32 buf_size;
1182 } *recov_info = (const void *)tlv_data;
1183
1184 if (tlv_len != sizeof(*recov_info))
1185 goto invalid_tlv_len;
1186 capa->error_log_addr =
1187 le32_to_cpu(recov_info->buf_addr);
1188 capa->error_log_size =
1189 le32_to_cpu(recov_info->buf_size);
1190 }
1191 break;
1192 case IWL_UCODE_TLV_FW_FSEQ_VERSION: {
1193 const struct {
1194 u8 version[32];
1195 u8 sha1[20];
1196 } *fseq_ver = (const void *)tlv_data;
1197
1198 if (tlv_len != sizeof(*fseq_ver))
1199 goto invalid_tlv_len;
1200 IWL_INFO(drv, "TLV_FW_FSEQ_VERSION: %.32s\n",
1201 fseq_ver->version);
1202 }
1203 break;
1204 case IWL_UCODE_TLV_FW_NUM_STATIONS:
1205 if (tlv_len != sizeof(u32))
1206 goto invalid_tlv_len;
1207 if (le32_to_cpup((const __le32 *)tlv_data) >
1208 IWL_STATION_COUNT_MAX) {
1209 IWL_ERR(drv,
1210 "%d is an invalid number of station\n",
1211 le32_to_cpup((const __le32 *)tlv_data));
1212 goto tlv_error;
1213 }
1214 capa->num_stations =
1215 le32_to_cpup((const __le32 *)tlv_data);
1216 break;
1217 case IWL_UCODE_TLV_FW_NUM_BEACONS:
1218 if (tlv_len != sizeof(u32))
1219 goto invalid_tlv_len;
1220 capa->num_beacons =
1221 le32_to_cpup((const __le32 *)tlv_data);
1222 break;
1223 case IWL_UCODE_TLV_UMAC_DEBUG_ADDRS: {
1224 const struct iwl_umac_debug_addrs *dbg_ptrs =
1225 (const void *)tlv_data;
1226
1227 if (tlv_len != sizeof(*dbg_ptrs))
1228 goto invalid_tlv_len;
1229 if (drv->trans->trans_cfg->device_family <
1230 IWL_DEVICE_FAMILY_22000)
1231 break;
1232 drv->trans->dbg.umac_error_event_table =
1233 le32_to_cpu(dbg_ptrs->error_info_addr) &
1234 ~FW_ADDR_CACHE_CONTROL;
1235 drv->trans->dbg.error_event_table_tlv_status |=
1236 IWL_ERROR_EVENT_TABLE_UMAC;
1237 break;
1238 }
1239 case IWL_UCODE_TLV_LMAC_DEBUG_ADDRS: {
1240 const struct iwl_lmac_debug_addrs *dbg_ptrs =
1241 (const void *)tlv_data;
1242
1243 if (tlv_len != sizeof(*dbg_ptrs))
1244 goto invalid_tlv_len;
1245 if (drv->trans->trans_cfg->device_family <
1246 IWL_DEVICE_FAMILY_22000)
1247 break;
1248 drv->trans->dbg.lmac_error_event_table[0] =
1249 le32_to_cpu(dbg_ptrs->error_event_table_ptr) &
1250 ~FW_ADDR_CACHE_CONTROL;
1251 drv->trans->dbg.error_event_table_tlv_status |=
1252 IWL_ERROR_EVENT_TABLE_LMAC1;
1253 break;
1254 }
1255 case IWL_UCODE_TLV_TYPE_REGIONS:
1256 iwl_parse_dbg_tlv_assert_tables(drv, tlv);
1257 fallthrough;
1258 case IWL_UCODE_TLV_TYPE_DEBUG_INFO:
1259 case IWL_UCODE_TLV_TYPE_BUFFER_ALLOCATION:
1260 case IWL_UCODE_TLV_TYPE_HCMD:
1261 case IWL_UCODE_TLV_TYPE_TRIGGERS:
1262 case IWL_UCODE_TLV_TYPE_CONF_SET:
1263 if (iwlwifi_mod_params.enable_ini)
1264 iwl_dbg_tlv_alloc(drv->trans, tlv, false);
1265 break;
1266 case IWL_UCODE_TLV_CMD_VERSIONS:
1267 if (tlv_len % sizeof(struct iwl_fw_cmd_version)) {
1268 IWL_ERR(drv,
1269 "Invalid length for command versions: %u\n",
1270 tlv_len);
1271 tlv_len /= sizeof(struct iwl_fw_cmd_version);
1272 tlv_len *= sizeof(struct iwl_fw_cmd_version);
1273 }
1274 if (WARN_ON(capa->cmd_versions))
1275 return -EINVAL;
1276 capa->cmd_versions = kmemdup(tlv_data, tlv_len,
1277 GFP_KERNEL);
1278 if (!capa->cmd_versions)
1279 return -ENOMEM;
1280 capa->n_cmd_versions =
1281 tlv_len / sizeof(struct iwl_fw_cmd_version);
1282 break;
1283 case IWL_UCODE_TLV_PHY_INTEGRATION_VERSION:
1284 if (drv->fw.phy_integration_ver) {
1285 IWL_ERR(drv,
1286 "phy integration str ignored, already exists\n");
1287 break;
1288 }
1289
1290 drv->fw.phy_integration_ver =
1291 kmemdup(tlv_data, tlv_len, GFP_KERNEL);
1292 if (!drv->fw.phy_integration_ver)
1293 return -ENOMEM;
1294 drv->fw.phy_integration_ver_len = tlv_len;
1295 break;
1296 case IWL_UCODE_TLV_SEC_TABLE_ADDR:
1297 case IWL_UCODE_TLV_D3_KEK_KCK_ADDR:
1298 iwl_drv_set_dump_exclude(drv, tlv_type,
1299 tlv_data, tlv_len);
1300 break;
1301 case IWL_UCODE_TLV_CURRENT_PC:
1302 if (tlv_len < sizeof(struct iwl_pc_data))
1303 goto invalid_tlv_len;
1304 drv->trans->dbg.pc_data =
1305 kmemdup(tlv_data, tlv_len, GFP_KERNEL);
1306 if (!drv->trans->dbg.pc_data)
1307 return -ENOMEM;
1308 drv->trans->dbg.num_pc =
1309 tlv_len / sizeof(struct iwl_pc_data);
1310 break;
1311 default:
1312 IWL_DEBUG_INFO(drv, "unknown TLV: %d\n", tlv_type);
1313 break;
1314 }
1315 }
1316
1317 if (!fw_has_capa(capa, IWL_UCODE_TLV_CAPA_USNIFFER_UNIFIED) &&
1318 usniffer_req && !*usniffer_images) {
1319 IWL_ERR(drv,
1320 "user selected to work with usniffer but usniffer image isn't available in ucode package\n");
1321 return -EINVAL;
1322 }
1323
1324 if (len) {
1325 IWL_ERR(drv, "invalid TLV after parsing: %zd\n", len);
1326 iwl_print_hex_dump(drv, IWL_DL_FW, data, len);
1327 return -EINVAL;
1328 }
1329
1330 return 0;
1331
1332 invalid_tlv_len:
1333 IWL_ERR(drv, "TLV %d has invalid size: %u\n", tlv_type, tlv_len);
1334 tlv_error:
1335 iwl_print_hex_dump(drv, IWL_DL_FW, tlv_data, tlv_len);
1336
1337 return -EINVAL;
1338}
1339
1340static int iwl_alloc_ucode(struct iwl_drv *drv,
1341 struct iwl_firmware_pieces *pieces,
1342 enum iwl_ucode_type type)
1343{
1344 int i;
1345 struct fw_desc *sec;
1346
1347 sec = kcalloc(pieces->img[type].sec_counter, sizeof(*sec), GFP_KERNEL);
1348 if (!sec)
1349 return -ENOMEM;
1350 drv->fw.img[type].sec = sec;
1351 drv->fw.img[type].num_sec = pieces->img[type].sec_counter;
1352
1353 for (i = 0; i < pieces->img[type].sec_counter; i++)
1354 if (iwl_alloc_fw_desc(drv, &sec[i], get_sec(pieces, type, i)))
1355 return -ENOMEM;
1356
1357 return 0;
1358}
1359
1360static int validate_sec_sizes(struct iwl_drv *drv,
1361 struct iwl_firmware_pieces *pieces,
1362 const struct iwl_cfg *cfg)
1363{
1364 IWL_DEBUG_INFO(drv, "f/w package hdr runtime inst size = %zd\n",
1365 get_sec_size(pieces, IWL_UCODE_REGULAR,
1366 IWL_UCODE_SECTION_INST));
1367 IWL_DEBUG_INFO(drv, "f/w package hdr runtime data size = %zd\n",
1368 get_sec_size(pieces, IWL_UCODE_REGULAR,
1369 IWL_UCODE_SECTION_DATA));
1370 IWL_DEBUG_INFO(drv, "f/w package hdr init inst size = %zd\n",
1371 get_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_INST));
1372 IWL_DEBUG_INFO(drv, "f/w package hdr init data size = %zd\n",
1373 get_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_DATA));
1374
1375 /* Verify that uCode images will fit in card's SRAM. */
1376 if (get_sec_size(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_INST) >
1377 cfg->max_inst_size) {
1378 IWL_ERR(drv, "uCode instr len %zd too large to fit in\n",
1379 get_sec_size(pieces, IWL_UCODE_REGULAR,
1380 IWL_UCODE_SECTION_INST));
1381 return -1;
1382 }
1383
1384 if (get_sec_size(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_DATA) >
1385 cfg->max_data_size) {
1386 IWL_ERR(drv, "uCode data len %zd too large to fit in\n",
1387 get_sec_size(pieces, IWL_UCODE_REGULAR,
1388 IWL_UCODE_SECTION_DATA));
1389 return -1;
1390 }
1391
1392 if (get_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_INST) >
1393 cfg->max_inst_size) {
1394 IWL_ERR(drv, "uCode init instr len %zd too large to fit in\n",
1395 get_sec_size(pieces, IWL_UCODE_INIT,
1396 IWL_UCODE_SECTION_INST));
1397 return -1;
1398 }
1399
1400 if (get_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_DATA) >
1401 cfg->max_data_size) {
1402 IWL_ERR(drv, "uCode init data len %zd too large to fit in\n",
1403 get_sec_size(pieces, IWL_UCODE_REGULAR,
1404 IWL_UCODE_SECTION_DATA));
1405 return -1;
1406 }
1407 return 0;
1408}
1409
1410static struct iwl_op_mode *
1411_iwl_op_mode_start(struct iwl_drv *drv, struct iwlwifi_opmode_table *op)
1412{
1413 const struct iwl_op_mode_ops *ops = op->ops;
1414 struct dentry *dbgfs_dir = NULL;
1415 struct iwl_op_mode *op_mode = NULL;
1416 int retry, max_retry = !!iwlwifi_mod_params.fw_restart * IWL_MAX_INIT_RETRY;
1417
1418 /* also protects start/stop from racing against each other */
1419 lockdep_assert_held(&iwlwifi_opmode_table_mtx);
1420
1421 for (retry = 0; retry <= max_retry; retry++) {
1422
1423#ifdef CONFIG_IWLWIFI_DEBUGFS
1424 drv->dbgfs_op_mode = debugfs_create_dir(op->name,
1425 drv->dbgfs_drv);
1426 dbgfs_dir = drv->dbgfs_op_mode;
1427#endif
1428
1429 op_mode = ops->start(drv->trans, drv->trans->cfg,
1430 &drv->fw, dbgfs_dir);
1431
1432 if (op_mode)
1433 return op_mode;
1434
1435 if (test_bit(STATUS_TRANS_DEAD, &drv->trans->status))
1436 break;
1437
1438 IWL_ERR(drv, "retry init count %d\n", retry);
1439
1440#ifdef CONFIG_IWLWIFI_DEBUGFS
1441 debugfs_remove_recursive(drv->dbgfs_op_mode);
1442 drv->dbgfs_op_mode = NULL;
1443#endif
1444 }
1445
1446 return NULL;
1447}
1448
1449static void _iwl_op_mode_stop(struct iwl_drv *drv)
1450{
1451 /* also protects start/stop from racing against each other */
1452 lockdep_assert_held(&iwlwifi_opmode_table_mtx);
1453
1454 /* op_mode can be NULL if its start failed */
1455 if (drv->op_mode) {
1456 iwl_op_mode_stop(drv->op_mode);
1457 drv->op_mode = NULL;
1458
1459#ifdef CONFIG_IWLWIFI_DEBUGFS
1460 debugfs_remove_recursive(drv->dbgfs_op_mode);
1461 drv->dbgfs_op_mode = NULL;
1462#endif
1463 }
1464}
1465
1466/*
1467 * iwl_req_fw_callback - callback when firmware was loaded
1468 *
1469 * If loaded successfully, copies the firmware into buffers
1470 * for the card to fetch (via DMA).
1471 */
1472static void iwl_req_fw_callback(const struct firmware *ucode_raw, void *context)
1473{
1474 struct iwl_drv *drv = context;
1475 struct iwl_fw *fw = &drv->fw;
1476 const struct iwl_ucode_header *ucode;
1477 struct iwlwifi_opmode_table *op;
1478 int err;
1479 struct iwl_firmware_pieces *pieces;
1480 const unsigned int api_max = drv->trans->cfg->ucode_api_max;
1481 const unsigned int api_min = drv->trans->cfg->ucode_api_min;
1482 size_t trigger_tlv_sz[FW_DBG_TRIGGER_MAX];
1483 u32 api_ver;
1484 int i;
1485 bool usniffer_images = false;
1486 bool failure = true;
1487
1488 fw->ucode_capa.max_probe_length = IWL_DEFAULT_MAX_PROBE_LENGTH;
1489 fw->ucode_capa.standard_phy_calibration_size =
1490 IWL_DEFAULT_STANDARD_PHY_CALIBRATE_TBL_SIZE;
1491 fw->ucode_capa.n_scan_channels = IWL_DEFAULT_SCAN_CHANNELS;
1492 fw->ucode_capa.num_stations = IWL_STATION_COUNT_MAX;
1493 fw->ucode_capa.num_beacons = 1;
1494 /* dump all fw memory areas by default */
1495 fw->dbg.dump_mask = 0xffffffff;
1496
1497 pieces = kzalloc(sizeof(*pieces), GFP_KERNEL);
1498 if (!pieces)
1499 goto out_free_fw;
1500
1501 if (!ucode_raw)
1502 goto try_again;
1503
1504 IWL_DEBUG_FW_INFO(drv, "Loaded firmware file '%s' (%zd bytes).\n",
1505 drv->firmware_name, ucode_raw->size);
1506
1507 /* Make sure that we got at least the API version number */
1508 if (ucode_raw->size < 4) {
1509 IWL_ERR(drv, "File size way too small!\n");
1510 goto try_again;
1511 }
1512
1513 /* Data from ucode file: header followed by uCode images */
1514 ucode = (const struct iwl_ucode_header *)ucode_raw->data;
1515
1516 if (ucode->ver)
1517 err = iwl_parse_v1_v2_firmware(drv, ucode_raw, pieces);
1518 else
1519 err = iwl_parse_tlv_firmware(drv, ucode_raw, pieces,
1520 &fw->ucode_capa, &usniffer_images);
1521
1522 if (err)
1523 goto try_again;
1524
1525 if (fw_has_api(&drv->fw.ucode_capa, IWL_UCODE_TLV_API_NEW_VERSION))
1526 api_ver = drv->fw.ucode_ver;
1527 else
1528 api_ver = IWL_UCODE_API(drv->fw.ucode_ver);
1529
1530 /*
1531 * api_ver should match the api version forming part of the
1532 * firmware filename ... but we don't check for that and only rely
1533 * on the API version read from firmware header from here on forward
1534 */
1535 if (api_ver < api_min || api_ver > api_max) {
1536 IWL_ERR(drv,
1537 "Driver unable to support your firmware API. "
1538 "Driver supports v%u, firmware is v%u.\n",
1539 api_max, api_ver);
1540 goto try_again;
1541 }
1542
1543 /*
1544 * In mvm uCode there is no difference between data and instructions
1545 * sections.
1546 */
1547 if (fw->type == IWL_FW_DVM && validate_sec_sizes(drv, pieces,
1548 drv->trans->cfg))
1549 goto try_again;
1550
1551 /* Allocate ucode buffers for card's bus-master loading ... */
1552
1553 /* Runtime instructions and 2 copies of data:
1554 * 1) unmodified from disk
1555 * 2) backup cache for save/restore during power-downs
1556 */
1557 for (i = 0; i < IWL_UCODE_TYPE_MAX; i++)
1558 if (iwl_alloc_ucode(drv, pieces, i))
1559 goto out_free_fw;
1560
1561 if (pieces->dbg_dest_tlv_init) {
1562 size_t dbg_dest_size = sizeof(*drv->fw.dbg.dest_tlv) +
1563 sizeof(drv->fw.dbg.dest_tlv->reg_ops[0]) *
1564 drv->fw.dbg.n_dest_reg;
1565
1566 drv->fw.dbg.dest_tlv = kmalloc(dbg_dest_size, GFP_KERNEL);
1567
1568 if (!drv->fw.dbg.dest_tlv)
1569 goto out_free_fw;
1570
1571 if (*pieces->dbg_dest_ver == 0) {
1572 memcpy(drv->fw.dbg.dest_tlv, pieces->dbg_dest_tlv_v1,
1573 dbg_dest_size);
1574 } else {
1575 struct iwl_fw_dbg_dest_tlv_v1 *dest_tlv =
1576 drv->fw.dbg.dest_tlv;
1577
1578 dest_tlv->version = pieces->dbg_dest_tlv->version;
1579 dest_tlv->monitor_mode =
1580 pieces->dbg_dest_tlv->monitor_mode;
1581 dest_tlv->size_power =
1582 pieces->dbg_dest_tlv->size_power;
1583 dest_tlv->wrap_count =
1584 pieces->dbg_dest_tlv->wrap_count;
1585 dest_tlv->write_ptr_reg =
1586 pieces->dbg_dest_tlv->write_ptr_reg;
1587 dest_tlv->base_shift =
1588 pieces->dbg_dest_tlv->base_shift;
1589 memcpy(dest_tlv->reg_ops,
1590 pieces->dbg_dest_tlv->reg_ops,
1591 sizeof(drv->fw.dbg.dest_tlv->reg_ops[0]) *
1592 drv->fw.dbg.n_dest_reg);
1593
1594 /* In version 1 of the destination tlv, which is
1595 * relevant for internal buffer exclusively,
1596 * the base address is part of given with the length
1597 * of the buffer, and the size shift is give instead of
1598 * end shift. We now store these values in base_reg,
1599 * and end shift, and when dumping the data we'll
1600 * manipulate it for extracting both the length and
1601 * base address */
1602 dest_tlv->base_reg = pieces->dbg_dest_tlv->cfg_reg;
1603 dest_tlv->end_shift =
1604 pieces->dbg_dest_tlv->size_shift;
1605 }
1606 }
1607
1608 for (i = 0; i < ARRAY_SIZE(drv->fw.dbg.conf_tlv); i++) {
1609 if (pieces->dbg_conf_tlv[i]) {
1610 drv->fw.dbg.conf_tlv[i] =
1611 kmemdup(pieces->dbg_conf_tlv[i],
1612 pieces->dbg_conf_tlv_len[i],
1613 GFP_KERNEL);
1614 if (!drv->fw.dbg.conf_tlv[i])
1615 goto out_free_fw;
1616 }
1617 }
1618
1619 memset(&trigger_tlv_sz, 0xff, sizeof(trigger_tlv_sz));
1620
1621 trigger_tlv_sz[FW_DBG_TRIGGER_MISSED_BEACONS] =
1622 sizeof(struct iwl_fw_dbg_trigger_missed_bcon);
1623 trigger_tlv_sz[FW_DBG_TRIGGER_CHANNEL_SWITCH] = 0;
1624 trigger_tlv_sz[FW_DBG_TRIGGER_FW_NOTIF] =
1625 sizeof(struct iwl_fw_dbg_trigger_cmd);
1626 trigger_tlv_sz[FW_DBG_TRIGGER_MLME] =
1627 sizeof(struct iwl_fw_dbg_trigger_mlme);
1628 trigger_tlv_sz[FW_DBG_TRIGGER_STATS] =
1629 sizeof(struct iwl_fw_dbg_trigger_stats);
1630 trigger_tlv_sz[FW_DBG_TRIGGER_RSSI] =
1631 sizeof(struct iwl_fw_dbg_trigger_low_rssi);
1632 trigger_tlv_sz[FW_DBG_TRIGGER_TXQ_TIMERS] =
1633 sizeof(struct iwl_fw_dbg_trigger_txq_timer);
1634 trigger_tlv_sz[FW_DBG_TRIGGER_TIME_EVENT] =
1635 sizeof(struct iwl_fw_dbg_trigger_time_event);
1636 trigger_tlv_sz[FW_DBG_TRIGGER_BA] =
1637 sizeof(struct iwl_fw_dbg_trigger_ba);
1638 trigger_tlv_sz[FW_DBG_TRIGGER_TDLS] =
1639 sizeof(struct iwl_fw_dbg_trigger_tdls);
1640
1641 for (i = 0; i < ARRAY_SIZE(drv->fw.dbg.trigger_tlv); i++) {
1642 if (pieces->dbg_trigger_tlv[i]) {
1643 /*
1644 * If the trigger isn't long enough, WARN and exit.
1645 * Someone is trying to debug something and he won't
1646 * be able to catch the bug he is trying to chase.
1647 * We'd better be noisy to be sure he knows what's
1648 * going on.
1649 */
1650 if (WARN_ON(pieces->dbg_trigger_tlv_len[i] <
1651 (trigger_tlv_sz[i] +
1652 sizeof(struct iwl_fw_dbg_trigger_tlv))))
1653 goto out_free_fw;
1654 drv->fw.dbg.trigger_tlv_len[i] =
1655 pieces->dbg_trigger_tlv_len[i];
1656 drv->fw.dbg.trigger_tlv[i] =
1657 kmemdup(pieces->dbg_trigger_tlv[i],
1658 drv->fw.dbg.trigger_tlv_len[i],
1659 GFP_KERNEL);
1660 if (!drv->fw.dbg.trigger_tlv[i])
1661 goto out_free_fw;
1662 }
1663 }
1664
1665 /* Now that we can no longer fail, copy information */
1666
1667 drv->fw.dbg.mem_tlv = pieces->dbg_mem_tlv;
1668 pieces->dbg_mem_tlv = NULL;
1669 drv->fw.dbg.n_mem_tlv = pieces->n_mem_tlv;
1670
1671 /*
1672 * The (size - 16) / 12 formula is based on the information recorded
1673 * for each event, which is of mode 1 (including timestamp) for all
1674 * new microcodes that include this information.
1675 */
1676 fw->init_evtlog_ptr = pieces->init_evtlog_ptr;
1677 if (pieces->init_evtlog_size)
1678 fw->init_evtlog_size = (pieces->init_evtlog_size - 16)/12;
1679 else
1680 fw->init_evtlog_size =
1681 drv->trans->trans_cfg->base_params->max_event_log_size;
1682 fw->init_errlog_ptr = pieces->init_errlog_ptr;
1683 fw->inst_evtlog_ptr = pieces->inst_evtlog_ptr;
1684 if (pieces->inst_evtlog_size)
1685 fw->inst_evtlog_size = (pieces->inst_evtlog_size - 16)/12;
1686 else
1687 fw->inst_evtlog_size =
1688 drv->trans->trans_cfg->base_params->max_event_log_size;
1689 fw->inst_errlog_ptr = pieces->inst_errlog_ptr;
1690
1691 /*
1692 * figure out the offset of chain noise reset and gain commands
1693 * base on the size of standard phy calibration commands table size
1694 */
1695 if (fw->ucode_capa.standard_phy_calibration_size >
1696 IWL_MAX_PHY_CALIBRATE_TBL_SIZE)
1697 fw->ucode_capa.standard_phy_calibration_size =
1698 IWL_MAX_STANDARD_PHY_CALIBRATE_TBL_SIZE;
1699
1700 /* We have our copies now, allow OS release its copies */
1701 release_firmware(ucode_raw);
1702
1703 iwl_dbg_tlv_load_bin(drv->trans->dev, drv->trans);
1704
1705 mutex_lock(&iwlwifi_opmode_table_mtx);
1706 switch (fw->type) {
1707 case IWL_FW_DVM:
1708 op = &iwlwifi_opmode_table[DVM_OP_MODE];
1709 break;
1710 default:
1711 WARN(1, "Invalid fw type %d\n", fw->type);
1712 fallthrough;
1713 case IWL_FW_MVM:
1714 op = &iwlwifi_opmode_table[MVM_OP_MODE];
1715 break;
1716 }
1717
1718 IWL_INFO(drv, "loaded firmware version %s op_mode %s\n",
1719 drv->fw.fw_version, op->name);
1720
1721 /* add this device to the list of devices using this op_mode */
1722 list_add_tail(&drv->list, &op->drv);
1723
1724 if (op->ops) {
1725 drv->op_mode = _iwl_op_mode_start(drv, op);
1726
1727 if (!drv->op_mode) {
1728 mutex_unlock(&iwlwifi_opmode_table_mtx);
1729 goto out_unbind;
1730 }
1731 } else {
1732 request_module_nowait("%s", op->name);
1733 }
1734 mutex_unlock(&iwlwifi_opmode_table_mtx);
1735
1736 complete(&drv->request_firmware_complete);
1737
1738 failure = false;
1739 goto free;
1740
1741 try_again:
1742 /* try next, if any */
1743 release_firmware(ucode_raw);
1744 if (iwl_request_firmware(drv, false))
1745 goto out_unbind;
1746 goto free;
1747
1748 out_free_fw:
1749 release_firmware(ucode_raw);
1750 out_unbind:
1751 complete(&drv->request_firmware_complete);
1752 device_release_driver(drv->trans->dev);
1753 /* drv has just been freed by the release */
1754 failure = false;
1755 free:
1756 if (failure)
1757 iwl_dealloc_ucode(drv);
1758
1759 if (pieces) {
1760 for (i = 0; i < ARRAY_SIZE(pieces->img); i++)
1761 kfree(pieces->img[i].sec);
1762 kfree(pieces->dbg_mem_tlv);
1763 kfree(pieces);
1764 }
1765}
1766
1767struct iwl_drv *iwl_drv_start(struct iwl_trans *trans)
1768{
1769 struct iwl_drv *drv;
1770 int ret;
1771
1772 drv = kzalloc(sizeof(*drv), GFP_KERNEL);
1773 if (!drv) {
1774 ret = -ENOMEM;
1775 goto err;
1776 }
1777
1778 drv->trans = trans;
1779 drv->dev = trans->dev;
1780
1781 init_completion(&drv->request_firmware_complete);
1782 INIT_LIST_HEAD(&drv->list);
1783
1784#ifdef CONFIG_IWLWIFI_DEBUGFS
1785 /* Create the device debugfs entries. */
1786 drv->dbgfs_drv = debugfs_create_dir(dev_name(trans->dev),
1787 iwl_dbgfs_root);
1788
1789 /* Create transport layer debugfs dir */
1790 drv->trans->dbgfs_dir = debugfs_create_dir("trans", drv->dbgfs_drv);
1791#endif
1792
1793 drv->trans->dbg.domains_bitmap = IWL_TRANS_FW_DBG_DOMAIN(drv->trans);
1794 if (iwlwifi_mod_params.enable_ini != ENABLE_INI) {
1795 /* We have a non-default value in the module parameter,
1796 * take its value
1797 */
1798 drv->trans->dbg.domains_bitmap &= 0xffff;
1799 if (iwlwifi_mod_params.enable_ini != IWL_FW_INI_PRESET_DISABLE) {
1800 if (iwlwifi_mod_params.enable_ini > ENABLE_INI) {
1801 IWL_ERR(trans,
1802 "invalid enable_ini module parameter value: max = %d, using 0 instead\n",
1803 ENABLE_INI);
1804 iwlwifi_mod_params.enable_ini = 0;
1805 }
1806 drv->trans->dbg.domains_bitmap =
1807 BIT(IWL_FW_DBG_DOMAIN_POS + iwlwifi_mod_params.enable_ini);
1808 }
1809 }
1810
1811 ret = iwl_request_firmware(drv, true);
1812 if (ret) {
1813 IWL_ERR(trans, "Couldn't request the fw\n");
1814 goto err_fw;
1815 }
1816
1817 return drv;
1818
1819err_fw:
1820#ifdef CONFIG_IWLWIFI_DEBUGFS
1821 debugfs_remove_recursive(drv->dbgfs_drv);
1822#endif
1823 iwl_dbg_tlv_free(drv->trans);
1824 kfree(drv);
1825err:
1826 return ERR_PTR(ret);
1827}
1828
1829void iwl_drv_stop(struct iwl_drv *drv)
1830{
1831 wait_for_completion(&drv->request_firmware_complete);
1832
1833 mutex_lock(&iwlwifi_opmode_table_mtx);
1834
1835 _iwl_op_mode_stop(drv);
1836
1837 iwl_dealloc_ucode(drv);
1838
1839 /*
1840 * List is empty (this item wasn't added)
1841 * when firmware loading failed -- in that
1842 * case we can't remove it from any list.
1843 */
1844 if (!list_empty(&drv->list))
1845 list_del(&drv->list);
1846 mutex_unlock(&iwlwifi_opmode_table_mtx);
1847
1848#ifdef CONFIG_IWLWIFI_DEBUGFS
1849 iwl_trans_debugfs_cleanup(drv->trans);
1850
1851 debugfs_remove_recursive(drv->dbgfs_drv);
1852#endif
1853
1854 iwl_dbg_tlv_free(drv->trans);
1855
1856 kfree(drv);
1857}
1858
1859/* shared module parameters */
1860struct iwl_mod_params iwlwifi_mod_params = {
1861 .fw_restart = true,
1862 .bt_coex_active = true,
1863 .power_level = IWL_POWER_INDEX_1,
1864 .uapsd_disable = IWL_DISABLE_UAPSD_BSS | IWL_DISABLE_UAPSD_P2P_CLIENT,
1865 .enable_ini = ENABLE_INI,
1866 /* the rest are 0 by default */
1867};
1868IWL_EXPORT_SYMBOL(iwlwifi_mod_params);
1869
1870int iwl_opmode_register(const char *name, const struct iwl_op_mode_ops *ops)
1871{
1872 int i;
1873 struct iwl_drv *drv;
1874 struct iwlwifi_opmode_table *op;
1875
1876 mutex_lock(&iwlwifi_opmode_table_mtx);
1877 for (i = 0; i < ARRAY_SIZE(iwlwifi_opmode_table); i++) {
1878 op = &iwlwifi_opmode_table[i];
1879 if (strcmp(op->name, name))
1880 continue;
1881 op->ops = ops;
1882 /* TODO: need to handle exceptional case */
1883 list_for_each_entry(drv, &op->drv, list)
1884 drv->op_mode = _iwl_op_mode_start(drv, op);
1885
1886 mutex_unlock(&iwlwifi_opmode_table_mtx);
1887 return 0;
1888 }
1889 mutex_unlock(&iwlwifi_opmode_table_mtx);
1890 return -EIO;
1891}
1892IWL_EXPORT_SYMBOL(iwl_opmode_register);
1893
1894void iwl_opmode_deregister(const char *name)
1895{
1896 int i;
1897 struct iwl_drv *drv;
1898
1899 mutex_lock(&iwlwifi_opmode_table_mtx);
1900 for (i = 0; i < ARRAY_SIZE(iwlwifi_opmode_table); i++) {
1901 if (strcmp(iwlwifi_opmode_table[i].name, name))
1902 continue;
1903 iwlwifi_opmode_table[i].ops = NULL;
1904
1905 /* call the stop routine for all devices */
1906 list_for_each_entry(drv, &iwlwifi_opmode_table[i].drv, list)
1907 _iwl_op_mode_stop(drv);
1908
1909 mutex_unlock(&iwlwifi_opmode_table_mtx);
1910 return;
1911 }
1912 mutex_unlock(&iwlwifi_opmode_table_mtx);
1913}
1914IWL_EXPORT_SYMBOL(iwl_opmode_deregister);
1915
1916static int __init iwl_drv_init(void)
1917{
1918 int i, err;
1919
1920 for (i = 0; i < ARRAY_SIZE(iwlwifi_opmode_table); i++)
1921 INIT_LIST_HEAD(&iwlwifi_opmode_table[i].drv);
1922
1923 pr_info(DRV_DESCRIPTION "\n");
1924
1925#ifdef CONFIG_IWLWIFI_DEBUGFS
1926 /* Create the root of iwlwifi debugfs subsystem. */
1927 iwl_dbgfs_root = debugfs_create_dir(DRV_NAME, NULL);
1928#endif
1929
1930 err = iwl_pci_register_driver();
1931 if (err)
1932 goto cleanup_debugfs;
1933
1934 return 0;
1935
1936cleanup_debugfs:
1937#ifdef CONFIG_IWLWIFI_DEBUGFS
1938 debugfs_remove_recursive(iwl_dbgfs_root);
1939#endif
1940 return err;
1941}
1942module_init(iwl_drv_init);
1943
1944static void __exit iwl_drv_exit(void)
1945{
1946 iwl_pci_unregister_driver();
1947
1948#ifdef CONFIG_IWLWIFI_DEBUGFS
1949 debugfs_remove_recursive(iwl_dbgfs_root);
1950#endif
1951}
1952module_exit(iwl_drv_exit);
1953
1954#ifdef CONFIG_IWLWIFI_DEBUG
1955module_param_named(debug, iwlwifi_mod_params.debug_level, uint, 0644);
1956MODULE_PARM_DESC(debug, "debug output mask");
1957#endif
1958
1959module_param_named(swcrypto, iwlwifi_mod_params.swcrypto, int, 0444);
1960MODULE_PARM_DESC(swcrypto, "using crypto in software (default 0 [hardware])");
1961module_param_named(11n_disable, iwlwifi_mod_params.disable_11n, uint, 0444);
1962MODULE_PARM_DESC(11n_disable,
1963 "disable 11n functionality, bitmap: 1: full, 2: disable agg TX, 4: disable agg RX, 8 enable agg TX");
1964module_param_named(amsdu_size, iwlwifi_mod_params.amsdu_size, int, 0444);
1965MODULE_PARM_DESC(amsdu_size,
1966 "amsdu size 0: 12K for multi Rx queue devices, 2K for AX210 devices, "
1967 "4K for other devices 1:4K 2:8K 3:12K (16K buffers) 4: 2K (default 0)");
1968module_param_named(fw_restart, iwlwifi_mod_params.fw_restart, bool, 0444);
1969MODULE_PARM_DESC(fw_restart, "restart firmware in case of error (default true)");
1970
1971module_param_named(nvm_file, iwlwifi_mod_params.nvm_file, charp, 0444);
1972MODULE_PARM_DESC(nvm_file, "NVM file name");
1973
1974module_param_named(uapsd_disable, iwlwifi_mod_params.uapsd_disable, uint, 0644);
1975MODULE_PARM_DESC(uapsd_disable,
1976 "disable U-APSD functionality bitmap 1: BSS 2: P2P Client (default: 3)");
1977
1978module_param_named(enable_ini, iwlwifi_mod_params.enable_ini, uint, 0444);
1979MODULE_PARM_DESC(enable_ini,
1980 "0:disable, 1-15:FW_DBG_PRESET Values, 16:enabled without preset value defined,"
1981 "Debug INI TLV FW debug infrastructure (default: 16)");
1982
1983/*
1984 * set bt_coex_active to true, uCode will do kill/defer
1985 * every time the priority line is asserted (BT is sending signals on the
1986 * priority line in the PCIx).
1987 * set bt_coex_active to false, uCode will ignore the BT activity and
1988 * perform the normal operation
1989 *
1990 * User might experience transmit issue on some platform due to WiFi/BT
1991 * co-exist problem. The possible behaviors are:
1992 * Able to scan and finding all the available AP
1993 * Not able to associate with any AP
1994 * On those platforms, WiFi communication can be restored by set
1995 * "bt_coex_active" module parameter to "false"
1996 *
1997 * default: bt_coex_active = true (BT_COEX_ENABLE)
1998 */
1999module_param_named(bt_coex_active, iwlwifi_mod_params.bt_coex_active,
2000 bool, 0444);
2001MODULE_PARM_DESC(bt_coex_active, "enable wifi/bt co-exist (default: enable)");
2002
2003module_param_named(led_mode, iwlwifi_mod_params.led_mode, int, 0444);
2004MODULE_PARM_DESC(led_mode, "0=system default, "
2005 "1=On(RF On)/Off(RF Off), 2=blinking, 3=Off (default: 0)");
2006
2007module_param_named(power_save, iwlwifi_mod_params.power_save, bool, 0444);
2008MODULE_PARM_DESC(power_save,
2009 "enable WiFi power management (default: disable)");
2010
2011module_param_named(power_level, iwlwifi_mod_params.power_level, int, 0444);
2012MODULE_PARM_DESC(power_level,
2013 "default power save level (range from 1 - 5, default: 1)");
2014
2015module_param_named(disable_11ac, iwlwifi_mod_params.disable_11ac, bool, 0444);
2016MODULE_PARM_DESC(disable_11ac, "Disable VHT capabilities (default: false)");
2017
2018module_param_named(remove_when_gone,
2019 iwlwifi_mod_params.remove_when_gone, bool,
2020 0444);
2021MODULE_PARM_DESC(remove_when_gone,
2022 "Remove dev from PCIe bus if it is deemed inaccessible (default: false)");
2023
2024module_param_named(disable_11ax, iwlwifi_mod_params.disable_11ax, bool,
2025 S_IRUGO);
2026MODULE_PARM_DESC(disable_11ax, "Disable HE capabilities (default: false)");
2027
2028module_param_named(disable_11be, iwlwifi_mod_params.disable_11be, bool, 0444);
2029MODULE_PARM_DESC(disable_11be, "Disable EHT capabilities (default: false)");