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 #include "fw/api/mac-cfg.h"
26
27 /******************************************************************************
28 *
29 * module boiler plate
30 *
31 ******************************************************************************/
32
33 #define DRV_DESCRIPTION "Intel(R) Wireless WiFi driver for Linux"
34 MODULE_DESCRIPTION(DRV_DESCRIPTION);
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 DEFINE_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 kfree(drv->trans->dbg.pc_data);
132 drv->trans->dbg.pc_data = NULL;
133
134 for (i = 0; i < IWL_UCODE_TYPE_MAX; i++)
135 iwl_free_fw_img(drv, drv->fw.img + i);
136
137 /* clear the data for the aborted load case */
138 memset(&drv->fw, 0, sizeof(drv->fw));
139 }
140
iwl_alloc_fw_desc(struct fw_desc * desc,struct fw_sec * sec)141 static int iwl_alloc_fw_desc(struct fw_desc *desc, 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
iwl_drv_get_step(int step)162 static 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
iwl_drv_get_fwname_pre(struct iwl_trans * trans,char * buf)171 const 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 }
220 IWL_EXPORT_SYMBOL(iwl_drv_get_fwname_pre);
221
222 static void iwl_req_fw_callback(const struct firmware *ucode_raw,
223 void *context);
224
iwl_request_firmware(struct iwl_drv * drv,bool first)225 static 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
276 struct 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 */
284 struct 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 */
295 struct iwl_tlv_calib_data {
296 __le32 ucode_type;
297 struct iwl_tlv_calib_ctrl calib;
298 } __packed;
299
300 struct 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
alloc_sec_data(struct iwl_firmware_pieces * pieces,enum iwl_ucode_type type,int sec)321 static void alloc_sec_data(struct iwl_firmware_pieces *pieces,
322 enum iwl_ucode_type type,
323 int sec)
324 {
325 struct fw_img_parsing *img = &pieces->img[type];
326 struct fw_sec *sec_memory;
327 int size = sec + 1;
328 size_t alloc_size = sizeof(*img->sec) * size;
329
330 if (img->sec && img->sec_counter >= size)
331 return;
332
333 sec_memory = krealloc(img->sec, alloc_size, GFP_KERNEL);
334 if (!sec_memory)
335 return;
336
337 img->sec = sec_memory;
338 img->sec_counter = size;
339 }
340
set_sec_data(struct iwl_firmware_pieces * pieces,enum iwl_ucode_type type,int sec,const void * data)341 static void set_sec_data(struct iwl_firmware_pieces *pieces,
342 enum iwl_ucode_type type,
343 int sec,
344 const void *data)
345 {
346 alloc_sec_data(pieces, type, sec);
347
348 pieces->img[type].sec[sec].data = data;
349 }
350
set_sec_size(struct iwl_firmware_pieces * pieces,enum iwl_ucode_type type,int sec,size_t size)351 static void set_sec_size(struct iwl_firmware_pieces *pieces,
352 enum iwl_ucode_type type,
353 int sec,
354 size_t size)
355 {
356 alloc_sec_data(pieces, type, sec);
357
358 pieces->img[type].sec[sec].size = size;
359 }
360
get_sec_size(struct iwl_firmware_pieces * pieces,enum iwl_ucode_type type,int sec)361 static size_t get_sec_size(struct iwl_firmware_pieces *pieces,
362 enum iwl_ucode_type type,
363 int sec)
364 {
365 return pieces->img[type].sec[sec].size;
366 }
367
set_sec_offset(struct iwl_firmware_pieces * pieces,enum iwl_ucode_type type,int sec,u32 offset)368 static void set_sec_offset(struct iwl_firmware_pieces *pieces,
369 enum iwl_ucode_type type,
370 int sec,
371 u32 offset)
372 {
373 alloc_sec_data(pieces, type, sec);
374
375 pieces->img[type].sec[sec].offset = offset;
376 }
377
378 /*
379 * Gets uCode section from tlv.
380 */
iwl_store_ucode_sec(struct fw_img_parsing * img,const void * data,int size)381 static int iwl_store_ucode_sec(struct fw_img_parsing *img,
382 const void *data, int size)
383 {
384 struct fw_sec *sec;
385 const struct fw_sec_parsing *sec_parse;
386 size_t alloc_size;
387
388 if (WARN_ON(!img || !data))
389 return -EINVAL;
390
391 sec_parse = (const struct fw_sec_parsing *)data;
392
393 alloc_size = sizeof(*img->sec) * (img->sec_counter + 1);
394 sec = krealloc(img->sec, alloc_size, GFP_KERNEL);
395 if (!sec)
396 return -ENOMEM;
397 img->sec = sec;
398
399 sec = &img->sec[img->sec_counter];
400
401 sec->offset = le32_to_cpu(sec_parse->offset);
402 sec->data = sec_parse->data;
403 sec->size = size - sizeof(sec_parse->offset);
404
405 ++img->sec_counter;
406
407 return 0;
408 }
409
iwl_set_default_calib(struct iwl_drv * drv,const u8 * data)410 static int iwl_set_default_calib(struct iwl_drv *drv, const u8 *data)
411 {
412 const struct iwl_tlv_calib_data *def_calib =
413 (const struct iwl_tlv_calib_data *)data;
414 u32 ucode_type = le32_to_cpu(def_calib->ucode_type);
415 if (ucode_type >= IWL_UCODE_TYPE_MAX) {
416 IWL_ERR(drv, "Wrong ucode_type %u for default calibration.\n",
417 ucode_type);
418 return -EINVAL;
419 }
420 drv->fw.default_calib[ucode_type].flow_trigger =
421 def_calib->calib.flow_trigger;
422 drv->fw.default_calib[ucode_type].event_trigger =
423 def_calib->calib.event_trigger;
424
425 return 0;
426 }
427
iwl_set_ucode_api_flags(struct iwl_drv * drv,const u8 * data,struct iwl_ucode_capabilities * capa)428 static void iwl_set_ucode_api_flags(struct iwl_drv *drv, const u8 *data,
429 struct iwl_ucode_capabilities *capa)
430 {
431 const struct iwl_ucode_api *ucode_api = (const void *)data;
432 u32 api_index = le32_to_cpu(ucode_api->api_index);
433 u32 api_flags = le32_to_cpu(ucode_api->api_flags);
434 int i;
435
436 if (api_index >= DIV_ROUND_UP(NUM_IWL_UCODE_TLV_API, 32)) {
437 IWL_WARN(drv,
438 "api flags index %d larger than supported by driver\n",
439 api_index);
440 return;
441 }
442
443 for (i = 0; i < 32; i++) {
444 if (api_flags & BIT(i))
445 __set_bit(i + 32 * api_index, capa->_api);
446 }
447 }
448
iwl_set_ucode_capabilities(struct iwl_drv * drv,const u8 * data,struct iwl_ucode_capabilities * capa)449 static void iwl_set_ucode_capabilities(struct iwl_drv *drv, const u8 *data,
450 struct iwl_ucode_capabilities *capa)
451 {
452 const struct iwl_ucode_capa *ucode_capa = (const void *)data;
453 u32 api_index = le32_to_cpu(ucode_capa->api_index);
454 u32 api_flags = le32_to_cpu(ucode_capa->api_capa);
455 int i;
456
457 if (api_index >= DIV_ROUND_UP(NUM_IWL_UCODE_TLV_CAPA, 32)) {
458 IWL_WARN(drv,
459 "capa flags index %d larger than supported by driver\n",
460 api_index);
461 return;
462 }
463
464 for (i = 0; i < 32; i++) {
465 if (api_flags & BIT(i))
466 __set_bit(i + 32 * api_index, capa->_capa);
467 }
468 }
469
iwl_reduced_fw_name(struct iwl_drv * drv)470 static const char *iwl_reduced_fw_name(struct iwl_drv *drv)
471 {
472 const char *name = drv->firmware_name;
473
474 if (strncmp(name, "iwlwifi-", 8) == 0)
475 name += 8;
476
477 return name;
478 }
479
iwl_parse_v1_v2_firmware(struct iwl_drv * drv,const struct firmware * ucode_raw,struct iwl_firmware_pieces * pieces)480 static int iwl_parse_v1_v2_firmware(struct iwl_drv *drv,
481 const struct firmware *ucode_raw,
482 struct iwl_firmware_pieces *pieces)
483 {
484 const struct iwl_ucode_header *ucode = (const void *)ucode_raw->data;
485 u32 api_ver, hdr_size, build;
486 char buildstr[25];
487 const u8 *src;
488
489 drv->fw.ucode_ver = le32_to_cpu(ucode->ver);
490 api_ver = IWL_UCODE_API(drv->fw.ucode_ver);
491
492 switch (api_ver) {
493 default:
494 hdr_size = 28;
495 if (ucode_raw->size < hdr_size) {
496 IWL_ERR(drv, "File size too small!\n");
497 return -EINVAL;
498 }
499 build = le32_to_cpu(ucode->u.v2.build);
500 set_sec_size(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_INST,
501 le32_to_cpu(ucode->u.v2.inst_size));
502 set_sec_size(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_DATA,
503 le32_to_cpu(ucode->u.v2.data_size));
504 set_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_INST,
505 le32_to_cpu(ucode->u.v2.init_size));
506 set_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_DATA,
507 le32_to_cpu(ucode->u.v2.init_data_size));
508 src = ucode->u.v2.data;
509 break;
510 case 0:
511 case 1:
512 case 2:
513 hdr_size = 24;
514 if (ucode_raw->size < hdr_size) {
515 IWL_ERR(drv, "File size too small!\n");
516 return -EINVAL;
517 }
518 build = 0;
519 set_sec_size(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_INST,
520 le32_to_cpu(ucode->u.v1.inst_size));
521 set_sec_size(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_DATA,
522 le32_to_cpu(ucode->u.v1.data_size));
523 set_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_INST,
524 le32_to_cpu(ucode->u.v1.init_size));
525 set_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_DATA,
526 le32_to_cpu(ucode->u.v1.init_data_size));
527 src = ucode->u.v1.data;
528 break;
529 }
530
531 if (build)
532 sprintf(buildstr, " build %u", build);
533 else
534 buildstr[0] = '\0';
535
536 snprintf(drv->fw.fw_version,
537 sizeof(drv->fw.fw_version),
538 "%u.%u.%u.%u%s %s",
539 IWL_UCODE_MAJOR(drv->fw.ucode_ver),
540 IWL_UCODE_MINOR(drv->fw.ucode_ver),
541 IWL_UCODE_API(drv->fw.ucode_ver),
542 IWL_UCODE_SERIAL(drv->fw.ucode_ver),
543 buildstr, iwl_reduced_fw_name(drv));
544
545 /* Verify size of file vs. image size info in file's header */
546
547 if (ucode_raw->size != hdr_size +
548 get_sec_size(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_INST) +
549 get_sec_size(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_DATA) +
550 get_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_INST) +
551 get_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_DATA)) {
552
553 IWL_ERR(drv,
554 "uCode file size %d does not match expected size\n",
555 (int)ucode_raw->size);
556 return -EINVAL;
557 }
558
559
560 set_sec_data(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_INST, src);
561 src += get_sec_size(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_INST);
562 set_sec_offset(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_INST,
563 IWLAGN_RTC_INST_LOWER_BOUND);
564 set_sec_data(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_DATA, src);
565 src += get_sec_size(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_DATA);
566 set_sec_offset(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_DATA,
567 IWLAGN_RTC_DATA_LOWER_BOUND);
568 set_sec_data(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_INST, src);
569 src += get_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_INST);
570 set_sec_offset(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_INST,
571 IWLAGN_RTC_INST_LOWER_BOUND);
572 set_sec_data(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_DATA, src);
573 src += get_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_DATA);
574 set_sec_offset(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_DATA,
575 IWLAGN_RTC_DATA_LOWER_BOUND);
576 return 0;
577 }
578
iwl_drv_set_dump_exclude(struct iwl_drv * drv,enum iwl_ucode_tlv_type tlv_type,const void * tlv_data,u32 tlv_len)579 static void iwl_drv_set_dump_exclude(struct iwl_drv *drv,
580 enum iwl_ucode_tlv_type tlv_type,
581 const void *tlv_data, u32 tlv_len)
582 {
583 const struct iwl_fw_dump_exclude *fw = tlv_data;
584 struct iwl_dump_exclude *excl;
585
586 if (tlv_len < sizeof(*fw))
587 return;
588
589 if (tlv_type == IWL_UCODE_TLV_SEC_TABLE_ADDR) {
590 excl = &drv->fw.dump_excl[0];
591
592 /* second time we find this, it's for WoWLAN */
593 if (excl->addr)
594 excl = &drv->fw.dump_excl_wowlan[0];
595 } else if (fw_has_capa(&drv->fw.ucode_capa,
596 IWL_UCODE_TLV_CAPA_CNSLDTD_D3_D0_IMG)) {
597 /* IWL_UCODE_TLV_D3_KEK_KCK_ADDR is regular image */
598 excl = &drv->fw.dump_excl[0];
599 } else {
600 /* IWL_UCODE_TLV_D3_KEK_KCK_ADDR is WoWLAN image */
601 excl = &drv->fw.dump_excl_wowlan[0];
602 }
603
604 if (excl->addr)
605 excl++;
606
607 if (excl->addr) {
608 IWL_DEBUG_FW_INFO(drv, "found too many excludes in fw file\n");
609 return;
610 }
611
612 excl->addr = le32_to_cpu(fw->addr) & ~FW_ADDR_CACHE_CONTROL;
613 excl->size = le32_to_cpu(fw->size);
614 }
615
iwl_parse_dbg_tlv_assert_tables(struct iwl_drv * drv,const struct iwl_ucode_tlv * tlv)616 static void iwl_parse_dbg_tlv_assert_tables(struct iwl_drv *drv,
617 const struct iwl_ucode_tlv *tlv)
618 {
619 const struct iwl_fw_ini_region_tlv *region;
620 u32 length = le32_to_cpu(tlv->length);
621 u32 addr;
622
623 if (length < offsetof(typeof(*region), special_mem) +
624 sizeof(region->special_mem))
625 return;
626
627 region = (const void *)tlv->data;
628 addr = le32_to_cpu(region->special_mem.base_addr);
629 addr += le32_to_cpu(region->special_mem.offset);
630 addr &= ~FW_ADDR_CACHE_CONTROL;
631
632 if (region->type != IWL_FW_INI_REGION_SPECIAL_DEVICE_MEMORY)
633 return;
634
635 switch (region->sub_type) {
636 case IWL_FW_INI_REGION_DEVICE_MEMORY_SUBTYPE_UMAC_ERROR_TABLE:
637 drv->trans->dbg.umac_error_event_table = addr;
638 drv->trans->dbg.error_event_table_tlv_status |=
639 IWL_ERROR_EVENT_TABLE_UMAC;
640 break;
641 case IWL_FW_INI_REGION_DEVICE_MEMORY_SUBTYPE_LMAC_1_ERROR_TABLE:
642 drv->trans->dbg.lmac_error_event_table[0] = addr;
643 drv->trans->dbg.error_event_table_tlv_status |=
644 IWL_ERROR_EVENT_TABLE_LMAC1;
645 break;
646 case IWL_FW_INI_REGION_DEVICE_MEMORY_SUBTYPE_LMAC_2_ERROR_TABLE:
647 drv->trans->dbg.lmac_error_event_table[1] = addr;
648 drv->trans->dbg.error_event_table_tlv_status |=
649 IWL_ERROR_EVENT_TABLE_LMAC2;
650 break;
651 case IWL_FW_INI_REGION_DEVICE_MEMORY_SUBTYPE_TCM_1_ERROR_TABLE:
652 drv->trans->dbg.tcm_error_event_table[0] = addr;
653 drv->trans->dbg.error_event_table_tlv_status |=
654 IWL_ERROR_EVENT_TABLE_TCM1;
655 break;
656 case IWL_FW_INI_REGION_DEVICE_MEMORY_SUBTYPE_TCM_2_ERROR_TABLE:
657 drv->trans->dbg.tcm_error_event_table[1] = addr;
658 drv->trans->dbg.error_event_table_tlv_status |=
659 IWL_ERROR_EVENT_TABLE_TCM2;
660 break;
661 case IWL_FW_INI_REGION_DEVICE_MEMORY_SUBTYPE_RCM_1_ERROR_TABLE:
662 drv->trans->dbg.rcm_error_event_table[0] = addr;
663 drv->trans->dbg.error_event_table_tlv_status |=
664 IWL_ERROR_EVENT_TABLE_RCM1;
665 break;
666 case IWL_FW_INI_REGION_DEVICE_MEMORY_SUBTYPE_RCM_2_ERROR_TABLE:
667 drv->trans->dbg.rcm_error_event_table[1] = addr;
668 drv->trans->dbg.error_event_table_tlv_status |=
669 IWL_ERROR_EVENT_TABLE_RCM2;
670 break;
671 default:
672 break;
673 }
674 }
675
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)676 static int iwl_parse_tlv_firmware(struct iwl_drv *drv,
677 const struct firmware *ucode_raw,
678 struct iwl_firmware_pieces *pieces,
679 struct iwl_ucode_capabilities *capa,
680 bool *usniffer_images)
681 {
682 const struct iwl_tlv_ucode_header *ucode = (const void *)ucode_raw->data;
683 const struct iwl_ucode_tlv *tlv;
684 size_t len = ucode_raw->size;
685 const u8 *data;
686 u32 tlv_len;
687 u32 usniffer_img;
688 enum iwl_ucode_tlv_type tlv_type;
689 const u8 *tlv_data;
690 char buildstr[25];
691 u32 build, paging_mem_size;
692 int num_of_cpus;
693 bool usniffer_req = false;
694
695 if (len < sizeof(*ucode)) {
696 IWL_ERR(drv, "uCode has invalid length: %zd\n", len);
697 return -EINVAL;
698 }
699
700 if (ucode->magic != cpu_to_le32(IWL_TLV_UCODE_MAGIC)) {
701 IWL_ERR(drv, "invalid uCode magic: 0X%x\n",
702 le32_to_cpu(ucode->magic));
703 return -EINVAL;
704 }
705
706 drv->fw.ucode_ver = le32_to_cpu(ucode->ver);
707 memcpy(drv->fw.human_readable, ucode->human_readable,
708 sizeof(drv->fw.human_readable));
709 build = le32_to_cpu(ucode->build);
710
711 if (build)
712 sprintf(buildstr, " build %u", build);
713 else
714 buildstr[0] = '\0';
715
716 snprintf(drv->fw.fw_version,
717 sizeof(drv->fw.fw_version),
718 "%u.%u.%u.%u%s %s",
719 IWL_UCODE_MAJOR(drv->fw.ucode_ver),
720 IWL_UCODE_MINOR(drv->fw.ucode_ver),
721 IWL_UCODE_API(drv->fw.ucode_ver),
722 IWL_UCODE_SERIAL(drv->fw.ucode_ver),
723 buildstr, iwl_reduced_fw_name(drv));
724
725 data = ucode->data;
726
727 len -= sizeof(*ucode);
728
729 while (len >= sizeof(*tlv)) {
730 len -= sizeof(*tlv);
731
732 tlv = (const void *)data;
733 tlv_len = le32_to_cpu(tlv->length);
734 tlv_type = le32_to_cpu(tlv->type);
735 tlv_data = tlv->data;
736
737 if (len < tlv_len) {
738 IWL_ERR(drv, "invalid TLV len: %zd/%u\n",
739 len, tlv_len);
740 return -EINVAL;
741 }
742 len -= ALIGN(tlv_len, 4);
743 data += sizeof(*tlv) + ALIGN(tlv_len, 4);
744
745 switch (tlv_type) {
746 case IWL_UCODE_TLV_INST:
747 set_sec_data(pieces, IWL_UCODE_REGULAR,
748 IWL_UCODE_SECTION_INST, tlv_data);
749 set_sec_size(pieces, IWL_UCODE_REGULAR,
750 IWL_UCODE_SECTION_INST, tlv_len);
751 set_sec_offset(pieces, IWL_UCODE_REGULAR,
752 IWL_UCODE_SECTION_INST,
753 IWLAGN_RTC_INST_LOWER_BOUND);
754 break;
755 case IWL_UCODE_TLV_DATA:
756 set_sec_data(pieces, IWL_UCODE_REGULAR,
757 IWL_UCODE_SECTION_DATA, tlv_data);
758 set_sec_size(pieces, IWL_UCODE_REGULAR,
759 IWL_UCODE_SECTION_DATA, tlv_len);
760 set_sec_offset(pieces, IWL_UCODE_REGULAR,
761 IWL_UCODE_SECTION_DATA,
762 IWLAGN_RTC_DATA_LOWER_BOUND);
763 break;
764 case IWL_UCODE_TLV_INIT:
765 set_sec_data(pieces, IWL_UCODE_INIT,
766 IWL_UCODE_SECTION_INST, tlv_data);
767 set_sec_size(pieces, IWL_UCODE_INIT,
768 IWL_UCODE_SECTION_INST, tlv_len);
769 set_sec_offset(pieces, IWL_UCODE_INIT,
770 IWL_UCODE_SECTION_INST,
771 IWLAGN_RTC_INST_LOWER_BOUND);
772 break;
773 case IWL_UCODE_TLV_INIT_DATA:
774 set_sec_data(pieces, IWL_UCODE_INIT,
775 IWL_UCODE_SECTION_DATA, tlv_data);
776 set_sec_size(pieces, IWL_UCODE_INIT,
777 IWL_UCODE_SECTION_DATA, tlv_len);
778 set_sec_offset(pieces, IWL_UCODE_INIT,
779 IWL_UCODE_SECTION_DATA,
780 IWLAGN_RTC_DATA_LOWER_BOUND);
781 break;
782 case IWL_UCODE_TLV_BOOT:
783 IWL_ERR(drv, "Found unexpected BOOT ucode\n");
784 break;
785 case IWL_UCODE_TLV_PROBE_MAX_LEN:
786 if (tlv_len != sizeof(u32))
787 goto invalid_tlv_len;
788 capa->max_probe_length =
789 le32_to_cpup((const __le32 *)tlv_data);
790 break;
791 case IWL_UCODE_TLV_PAN:
792 if (tlv_len)
793 goto invalid_tlv_len;
794 capa->flags |= IWL_UCODE_TLV_FLAGS_PAN;
795 break;
796 case IWL_UCODE_TLV_FLAGS:
797 /* must be at least one u32 */
798 if (tlv_len < sizeof(u32))
799 goto invalid_tlv_len;
800 /* and a proper number of u32s */
801 if (tlv_len % sizeof(u32))
802 goto invalid_tlv_len;
803 /*
804 * This driver only reads the first u32 as
805 * right now no more features are defined,
806 * if that changes then either the driver
807 * will not work with the new firmware, or
808 * it'll not take advantage of new features.
809 */
810 capa->flags = le32_to_cpup((const __le32 *)tlv_data);
811 break;
812 case IWL_UCODE_TLV_API_CHANGES_SET:
813 if (tlv_len != sizeof(struct iwl_ucode_api))
814 goto invalid_tlv_len;
815 iwl_set_ucode_api_flags(drv, tlv_data, capa);
816 break;
817 case IWL_UCODE_TLV_ENABLED_CAPABILITIES:
818 if (tlv_len != sizeof(struct iwl_ucode_capa))
819 goto invalid_tlv_len;
820 iwl_set_ucode_capabilities(drv, tlv_data, capa);
821 break;
822 case IWL_UCODE_TLV_INIT_EVTLOG_PTR:
823 if (tlv_len != sizeof(u32))
824 goto invalid_tlv_len;
825 pieces->init_evtlog_ptr =
826 le32_to_cpup((const __le32 *)tlv_data);
827 break;
828 case IWL_UCODE_TLV_INIT_EVTLOG_SIZE:
829 if (tlv_len != sizeof(u32))
830 goto invalid_tlv_len;
831 pieces->init_evtlog_size =
832 le32_to_cpup((const __le32 *)tlv_data);
833 break;
834 case IWL_UCODE_TLV_INIT_ERRLOG_PTR:
835 if (tlv_len != sizeof(u32))
836 goto invalid_tlv_len;
837 pieces->init_errlog_ptr =
838 le32_to_cpup((const __le32 *)tlv_data);
839 break;
840 case IWL_UCODE_TLV_RUNT_EVTLOG_PTR:
841 if (tlv_len != sizeof(u32))
842 goto invalid_tlv_len;
843 pieces->inst_evtlog_ptr =
844 le32_to_cpup((const __le32 *)tlv_data);
845 break;
846 case IWL_UCODE_TLV_RUNT_EVTLOG_SIZE:
847 if (tlv_len != sizeof(u32))
848 goto invalid_tlv_len;
849 pieces->inst_evtlog_size =
850 le32_to_cpup((const __le32 *)tlv_data);
851 break;
852 case IWL_UCODE_TLV_RUNT_ERRLOG_PTR:
853 if (tlv_len != sizeof(u32))
854 goto invalid_tlv_len;
855 pieces->inst_errlog_ptr =
856 le32_to_cpup((const __le32 *)tlv_data);
857 break;
858 case IWL_UCODE_TLV_ENHANCE_SENS_TBL:
859 if (tlv_len)
860 goto invalid_tlv_len;
861 drv->fw.enhance_sensitivity_table = true;
862 break;
863 case IWL_UCODE_TLV_WOWLAN_INST:
864 set_sec_data(pieces, IWL_UCODE_WOWLAN,
865 IWL_UCODE_SECTION_INST, tlv_data);
866 set_sec_size(pieces, IWL_UCODE_WOWLAN,
867 IWL_UCODE_SECTION_INST, tlv_len);
868 set_sec_offset(pieces, IWL_UCODE_WOWLAN,
869 IWL_UCODE_SECTION_INST,
870 IWLAGN_RTC_INST_LOWER_BOUND);
871 break;
872 case IWL_UCODE_TLV_WOWLAN_DATA:
873 set_sec_data(pieces, IWL_UCODE_WOWLAN,
874 IWL_UCODE_SECTION_DATA, tlv_data);
875 set_sec_size(pieces, IWL_UCODE_WOWLAN,
876 IWL_UCODE_SECTION_DATA, tlv_len);
877 set_sec_offset(pieces, IWL_UCODE_WOWLAN,
878 IWL_UCODE_SECTION_DATA,
879 IWLAGN_RTC_DATA_LOWER_BOUND);
880 break;
881 case IWL_UCODE_TLV_PHY_CALIBRATION_SIZE:
882 if (tlv_len != sizeof(u32))
883 goto invalid_tlv_len;
884 capa->standard_phy_calibration_size =
885 le32_to_cpup((const __le32 *)tlv_data);
886 break;
887 case IWL_UCODE_TLV_SEC_RT:
888 iwl_store_ucode_sec(&pieces->img[IWL_UCODE_REGULAR],
889 tlv_data, tlv_len);
890 drv->fw.type = IWL_FW_MVM;
891 break;
892 case IWL_UCODE_TLV_SEC_INIT:
893 iwl_store_ucode_sec(&pieces->img[IWL_UCODE_INIT],
894 tlv_data, tlv_len);
895 drv->fw.type = IWL_FW_MVM;
896 break;
897 case IWL_UCODE_TLV_SEC_WOWLAN:
898 iwl_store_ucode_sec(&pieces->img[IWL_UCODE_WOWLAN],
899 tlv_data, tlv_len);
900 drv->fw.type = IWL_FW_MVM;
901 break;
902 case IWL_UCODE_TLV_DEF_CALIB:
903 if (tlv_len != sizeof(struct iwl_tlv_calib_data))
904 goto invalid_tlv_len;
905 if (iwl_set_default_calib(drv, tlv_data))
906 goto tlv_error;
907 break;
908 case IWL_UCODE_TLV_PHY_SKU:
909 if (tlv_len != sizeof(u32))
910 goto invalid_tlv_len;
911 drv->fw.phy_config = le32_to_cpup((const __le32 *)tlv_data);
912 drv->fw.valid_tx_ant = (drv->fw.phy_config &
913 FW_PHY_CFG_TX_CHAIN) >>
914 FW_PHY_CFG_TX_CHAIN_POS;
915 drv->fw.valid_rx_ant = (drv->fw.phy_config &
916 FW_PHY_CFG_RX_CHAIN) >>
917 FW_PHY_CFG_RX_CHAIN_POS;
918 break;
919 case IWL_UCODE_TLV_SECURE_SEC_RT:
920 iwl_store_ucode_sec(&pieces->img[IWL_UCODE_REGULAR],
921 tlv_data, tlv_len);
922 drv->fw.type = IWL_FW_MVM;
923 break;
924 case IWL_UCODE_TLV_SECURE_SEC_INIT:
925 iwl_store_ucode_sec(&pieces->img[IWL_UCODE_INIT],
926 tlv_data, tlv_len);
927 drv->fw.type = IWL_FW_MVM;
928 break;
929 case IWL_UCODE_TLV_SECURE_SEC_WOWLAN:
930 iwl_store_ucode_sec(&pieces->img[IWL_UCODE_WOWLAN],
931 tlv_data, tlv_len);
932 drv->fw.type = IWL_FW_MVM;
933 break;
934 case IWL_UCODE_TLV_NUM_OF_CPU:
935 if (tlv_len != sizeof(u32))
936 goto invalid_tlv_len;
937 num_of_cpus =
938 le32_to_cpup((const __le32 *)tlv_data);
939
940 if (num_of_cpus == 2) {
941 drv->fw.img[IWL_UCODE_REGULAR].is_dual_cpus =
942 true;
943 drv->fw.img[IWL_UCODE_INIT].is_dual_cpus =
944 true;
945 drv->fw.img[IWL_UCODE_WOWLAN].is_dual_cpus =
946 true;
947 } else if ((num_of_cpus > 2) || (num_of_cpus < 1)) {
948 IWL_ERR(drv, "Driver support up to 2 CPUs\n");
949 return -EINVAL;
950 }
951 break;
952 case IWL_UCODE_TLV_N_SCAN_CHANNELS:
953 if (tlv_len != sizeof(u32))
954 goto invalid_tlv_len;
955 capa->n_scan_channels =
956 le32_to_cpup((const __le32 *)tlv_data);
957 break;
958 case IWL_UCODE_TLV_FW_VERSION: {
959 const __le32 *ptr = (const void *)tlv_data;
960 u32 major, minor;
961 u8 local_comp;
962
963 if (tlv_len != sizeof(u32) * 3)
964 goto invalid_tlv_len;
965
966 major = le32_to_cpup(ptr++);
967 minor = le32_to_cpup(ptr++);
968 local_comp = le32_to_cpup(ptr);
969
970 snprintf(drv->fw.fw_version,
971 sizeof(drv->fw.fw_version),
972 "%u.%08x.%u %s", major, minor,
973 local_comp, iwl_reduced_fw_name(drv));
974 break;
975 }
976 case IWL_UCODE_TLV_FW_DBG_DEST: {
977 const struct iwl_fw_dbg_dest_tlv *dest = NULL;
978 const struct iwl_fw_dbg_dest_tlv_v1 *dest_v1 = NULL;
979 u8 mon_mode;
980
981 pieces->dbg_dest_ver = (const u8 *)tlv_data;
982 if (*pieces->dbg_dest_ver == 1) {
983 dest = (const void *)tlv_data;
984 } else if (*pieces->dbg_dest_ver == 0) {
985 dest_v1 = (const void *)tlv_data;
986 } else {
987 IWL_ERR(drv,
988 "The version is %d, and it is invalid\n",
989 *pieces->dbg_dest_ver);
990 break;
991 }
992
993 if (pieces->dbg_dest_tlv_init) {
994 IWL_ERR(drv,
995 "dbg destination ignored, already exists\n");
996 break;
997 }
998
999 pieces->dbg_dest_tlv_init = true;
1000
1001 if (dest_v1) {
1002 pieces->dbg_dest_tlv_v1 = dest_v1;
1003 mon_mode = dest_v1->monitor_mode;
1004 } else {
1005 pieces->dbg_dest_tlv = dest;
1006 mon_mode = dest->monitor_mode;
1007 }
1008
1009 IWL_INFO(drv, "Found debug destination: %s\n",
1010 get_fw_dbg_mode_string(mon_mode));
1011
1012 drv->fw.dbg.n_dest_reg = (dest_v1) ?
1013 tlv_len -
1014 offsetof(struct iwl_fw_dbg_dest_tlv_v1,
1015 reg_ops) :
1016 tlv_len -
1017 offsetof(struct iwl_fw_dbg_dest_tlv,
1018 reg_ops);
1019
1020 drv->fw.dbg.n_dest_reg /=
1021 sizeof(drv->fw.dbg.dest_tlv->reg_ops[0]);
1022
1023 break;
1024 }
1025 case IWL_UCODE_TLV_FW_DBG_CONF: {
1026 const struct iwl_fw_dbg_conf_tlv *conf =
1027 (const void *)tlv_data;
1028
1029 if (!pieces->dbg_dest_tlv_init) {
1030 IWL_ERR(drv,
1031 "Ignore dbg config %d - no destination configured\n",
1032 conf->id);
1033 break;
1034 }
1035
1036 if (conf->id >= ARRAY_SIZE(drv->fw.dbg.conf_tlv)) {
1037 IWL_ERR(drv,
1038 "Skip unknown configuration: %d\n",
1039 conf->id);
1040 break;
1041 }
1042
1043 if (pieces->dbg_conf_tlv[conf->id]) {
1044 IWL_ERR(drv,
1045 "Ignore duplicate dbg config %d\n",
1046 conf->id);
1047 break;
1048 }
1049
1050 if (conf->usniffer)
1051 usniffer_req = true;
1052
1053 IWL_INFO(drv, "Found debug configuration: %d\n",
1054 conf->id);
1055
1056 pieces->dbg_conf_tlv[conf->id] = conf;
1057 pieces->dbg_conf_tlv_len[conf->id] = tlv_len;
1058 break;
1059 }
1060 case IWL_UCODE_TLV_FW_DBG_TRIGGER: {
1061 const struct iwl_fw_dbg_trigger_tlv *trigger =
1062 (const void *)tlv_data;
1063 u32 trigger_id = le32_to_cpu(trigger->id);
1064
1065 if (trigger_id >= ARRAY_SIZE(drv->fw.dbg.trigger_tlv)) {
1066 IWL_ERR(drv,
1067 "Skip unknown trigger: %u\n",
1068 trigger->id);
1069 break;
1070 }
1071
1072 if (pieces->dbg_trigger_tlv[trigger_id]) {
1073 IWL_ERR(drv,
1074 "Ignore duplicate dbg trigger %u\n",
1075 trigger->id);
1076 break;
1077 }
1078
1079 IWL_INFO(drv, "Found debug trigger: %u\n", trigger->id);
1080
1081 pieces->dbg_trigger_tlv[trigger_id] = trigger;
1082 pieces->dbg_trigger_tlv_len[trigger_id] = tlv_len;
1083 break;
1084 }
1085 case IWL_UCODE_TLV_FW_DBG_DUMP_LST: {
1086 if (tlv_len != sizeof(u32)) {
1087 IWL_ERR(drv,
1088 "dbg lst mask size incorrect, skip\n");
1089 break;
1090 }
1091
1092 drv->fw.dbg.dump_mask =
1093 le32_to_cpup((const __le32 *)tlv_data);
1094 break;
1095 }
1096 case IWL_UCODE_TLV_SEC_RT_USNIFFER:
1097 *usniffer_images = true;
1098 iwl_store_ucode_sec(&pieces->img[IWL_UCODE_REGULAR_USNIFFER],
1099 tlv_data, tlv_len);
1100 break;
1101 case IWL_UCODE_TLV_PAGING:
1102 if (tlv_len != sizeof(u32))
1103 goto invalid_tlv_len;
1104 paging_mem_size = le32_to_cpup((const __le32 *)tlv_data);
1105
1106 IWL_DEBUG_FW(drv,
1107 "Paging: paging enabled (size = %u bytes)\n",
1108 paging_mem_size);
1109
1110 if (paging_mem_size > MAX_PAGING_IMAGE_SIZE) {
1111 IWL_ERR(drv,
1112 "Paging: driver supports up to %lu bytes for paging image\n",
1113 MAX_PAGING_IMAGE_SIZE);
1114 return -EINVAL;
1115 }
1116
1117 if (paging_mem_size & (FW_PAGING_SIZE - 1)) {
1118 IWL_ERR(drv,
1119 "Paging: image isn't multiple %lu\n",
1120 FW_PAGING_SIZE);
1121 return -EINVAL;
1122 }
1123
1124 drv->fw.img[IWL_UCODE_REGULAR].paging_mem_size =
1125 paging_mem_size;
1126 usniffer_img = IWL_UCODE_REGULAR_USNIFFER;
1127 drv->fw.img[usniffer_img].paging_mem_size =
1128 paging_mem_size;
1129 break;
1130 case IWL_UCODE_TLV_FW_GSCAN_CAPA:
1131 /* ignored */
1132 break;
1133 case IWL_UCODE_TLV_FW_MEM_SEG: {
1134 const struct iwl_fw_dbg_mem_seg_tlv *dbg_mem =
1135 (const void *)tlv_data;
1136 size_t size;
1137 struct iwl_fw_dbg_mem_seg_tlv *n;
1138
1139 if (tlv_len != (sizeof(*dbg_mem)))
1140 goto invalid_tlv_len;
1141
1142 IWL_DEBUG_INFO(drv, "Found debug memory segment: %u\n",
1143 dbg_mem->data_type);
1144
1145 size = sizeof(*pieces->dbg_mem_tlv) *
1146 (pieces->n_mem_tlv + 1);
1147 n = krealloc(pieces->dbg_mem_tlv, size, GFP_KERNEL);
1148 if (!n)
1149 return -ENOMEM;
1150 pieces->dbg_mem_tlv = n;
1151 pieces->dbg_mem_tlv[pieces->n_mem_tlv] = *dbg_mem;
1152 pieces->n_mem_tlv++;
1153 break;
1154 }
1155 case IWL_UCODE_TLV_IML: {
1156 drv->fw.iml_len = tlv_len;
1157 drv->fw.iml = kmemdup(tlv_data, tlv_len, GFP_KERNEL);
1158 if (!drv->fw.iml)
1159 return -ENOMEM;
1160 break;
1161 }
1162 case IWL_UCODE_TLV_FW_RECOVERY_INFO: {
1163 const struct {
1164 __le32 buf_addr;
1165 __le32 buf_size;
1166 } *recov_info = (const void *)tlv_data;
1167
1168 if (tlv_len != sizeof(*recov_info))
1169 goto invalid_tlv_len;
1170 capa->error_log_addr =
1171 le32_to_cpu(recov_info->buf_addr);
1172 capa->error_log_size =
1173 le32_to_cpu(recov_info->buf_size);
1174 }
1175 break;
1176 case IWL_UCODE_TLV_FW_FSEQ_VERSION: {
1177 const struct {
1178 u8 version[32];
1179 u8 sha1[20];
1180 } *fseq_ver = (const void *)tlv_data;
1181
1182 if (tlv_len != sizeof(*fseq_ver))
1183 goto invalid_tlv_len;
1184 IWL_INFO(drv, "TLV_FW_FSEQ_VERSION: %.32s\n",
1185 fseq_ver->version);
1186 }
1187 break;
1188 case IWL_UCODE_TLV_FW_NUM_STATIONS:
1189 if (tlv_len != sizeof(u32))
1190 goto invalid_tlv_len;
1191 if (le32_to_cpup((const __le32 *)tlv_data) >
1192 IWL_STATION_COUNT_MAX) {
1193 IWL_ERR(drv,
1194 "%d is an invalid number of station\n",
1195 le32_to_cpup((const __le32 *)tlv_data));
1196 goto tlv_error;
1197 }
1198 capa->num_stations =
1199 le32_to_cpup((const __le32 *)tlv_data);
1200 break;
1201 case IWL_UCODE_TLV_FW_NUM_LINKS:
1202 if (tlv_len != sizeof(u32))
1203 goto invalid_tlv_len;
1204 if (le32_to_cpup((const __le32 *)tlv_data) >
1205 IWL_FW_MAX_LINK_ID + 1) {
1206 IWL_ERR(drv,
1207 "%d is an invalid number of links\n",
1208 le32_to_cpup((const __le32 *)tlv_data));
1209 goto tlv_error;
1210 }
1211 capa->num_links =
1212 le32_to_cpup((const __le32 *)tlv_data);
1213 break;
1214 case IWL_UCODE_TLV_FW_NUM_BEACONS:
1215 if (tlv_len != sizeof(u32))
1216 goto invalid_tlv_len;
1217 capa->num_beacons =
1218 le32_to_cpup((const __le32 *)tlv_data);
1219 break;
1220 case IWL_UCODE_TLV_UMAC_DEBUG_ADDRS: {
1221 const struct iwl_umac_debug_addrs *dbg_ptrs =
1222 (const void *)tlv_data;
1223
1224 if (tlv_len != sizeof(*dbg_ptrs))
1225 goto invalid_tlv_len;
1226 if (drv->trans->trans_cfg->device_family <
1227 IWL_DEVICE_FAMILY_22000)
1228 break;
1229 drv->trans->dbg.umac_error_event_table =
1230 le32_to_cpu(dbg_ptrs->error_info_addr) &
1231 ~FW_ADDR_CACHE_CONTROL;
1232 drv->trans->dbg.error_event_table_tlv_status |=
1233 IWL_ERROR_EVENT_TABLE_UMAC;
1234 break;
1235 }
1236 case IWL_UCODE_TLV_LMAC_DEBUG_ADDRS: {
1237 const struct iwl_lmac_debug_addrs *dbg_ptrs =
1238 (const void *)tlv_data;
1239
1240 if (tlv_len != sizeof(*dbg_ptrs))
1241 goto invalid_tlv_len;
1242 if (drv->trans->trans_cfg->device_family <
1243 IWL_DEVICE_FAMILY_22000)
1244 break;
1245 drv->trans->dbg.lmac_error_event_table[0] =
1246 le32_to_cpu(dbg_ptrs->error_event_table_ptr) &
1247 ~FW_ADDR_CACHE_CONTROL;
1248 drv->trans->dbg.error_event_table_tlv_status |=
1249 IWL_ERROR_EVENT_TABLE_LMAC1;
1250 break;
1251 }
1252 case IWL_UCODE_TLV_TYPE_REGIONS:
1253 iwl_parse_dbg_tlv_assert_tables(drv, tlv);
1254 fallthrough;
1255 case IWL_UCODE_TLV_TYPE_DEBUG_INFO:
1256 case IWL_UCODE_TLV_TYPE_BUFFER_ALLOCATION:
1257 case IWL_UCODE_TLV_TYPE_HCMD:
1258 case IWL_UCODE_TLV_TYPE_TRIGGERS:
1259 case IWL_UCODE_TLV_TYPE_CONF_SET:
1260 if (iwlwifi_mod_params.enable_ini)
1261 iwl_dbg_tlv_alloc(drv->trans, tlv, false);
1262 break;
1263 case IWL_UCODE_TLV_CMD_VERSIONS:
1264 if (tlv_len % sizeof(struct iwl_fw_cmd_version)) {
1265 IWL_ERR(drv,
1266 "Invalid length for command versions: %u\n",
1267 tlv_len);
1268 tlv_len /= sizeof(struct iwl_fw_cmd_version);
1269 tlv_len *= sizeof(struct iwl_fw_cmd_version);
1270 }
1271 if (WARN_ON(capa->cmd_versions))
1272 return -EINVAL;
1273 capa->cmd_versions = kmemdup(tlv_data, tlv_len,
1274 GFP_KERNEL);
1275 if (!capa->cmd_versions)
1276 return -ENOMEM;
1277 capa->n_cmd_versions =
1278 tlv_len / sizeof(struct iwl_fw_cmd_version);
1279 break;
1280 case IWL_UCODE_TLV_PHY_INTEGRATION_VERSION:
1281 if (drv->fw.phy_integration_ver) {
1282 IWL_ERR(drv,
1283 "phy integration str ignored, already exists\n");
1284 break;
1285 }
1286
1287 drv->fw.phy_integration_ver =
1288 kmemdup(tlv_data, tlv_len, GFP_KERNEL);
1289 if (!drv->fw.phy_integration_ver)
1290 return -ENOMEM;
1291 drv->fw.phy_integration_ver_len = tlv_len;
1292 break;
1293 case IWL_UCODE_TLV_SEC_TABLE_ADDR:
1294 case IWL_UCODE_TLV_D3_KEK_KCK_ADDR:
1295 iwl_drv_set_dump_exclude(drv, tlv_type,
1296 tlv_data, tlv_len);
1297 break;
1298 case IWL_UCODE_TLV_CURRENT_PC:
1299 if (tlv_len < sizeof(struct iwl_pc_data))
1300 goto invalid_tlv_len;
1301 drv->trans->dbg.pc_data =
1302 kmemdup(tlv_data, tlv_len, GFP_KERNEL);
1303 if (!drv->trans->dbg.pc_data)
1304 return -ENOMEM;
1305 drv->trans->dbg.num_pc =
1306 tlv_len / sizeof(struct iwl_pc_data);
1307 break;
1308 default:
1309 IWL_DEBUG_INFO(drv, "unknown TLV: %d\n", tlv_type);
1310 break;
1311 }
1312 }
1313
1314 if (!fw_has_capa(capa, IWL_UCODE_TLV_CAPA_USNIFFER_UNIFIED) &&
1315 usniffer_req && !*usniffer_images) {
1316 IWL_ERR(drv,
1317 "user selected to work with usniffer but usniffer image isn't available in ucode package\n");
1318 return -EINVAL;
1319 }
1320
1321 if (len) {
1322 IWL_ERR(drv, "invalid TLV after parsing: %zd\n", len);
1323 iwl_print_hex_dump(drv, IWL_DL_FW, data, len);
1324 return -EINVAL;
1325 }
1326
1327 return 0;
1328
1329 invalid_tlv_len:
1330 IWL_ERR(drv, "TLV %d has invalid size: %u\n", tlv_type, tlv_len);
1331 tlv_error:
1332 iwl_print_hex_dump(drv, IWL_DL_FW, tlv_data, tlv_len);
1333
1334 return -EINVAL;
1335 }
1336
iwl_alloc_ucode_mem(struct fw_img * out,struct fw_img_parsing * img)1337 static int iwl_alloc_ucode_mem(struct fw_img *out, struct fw_img_parsing *img)
1338 {
1339 struct fw_desc *sec;
1340
1341 sec = kcalloc(img->sec_counter, sizeof(*sec), GFP_KERNEL);
1342 if (!sec)
1343 return -ENOMEM;
1344
1345 out->sec = sec;
1346 out->num_sec = img->sec_counter;
1347
1348 for (int i = 0; i < out->num_sec; i++)
1349 if (iwl_alloc_fw_desc(&sec[i], &img->sec[i]))
1350 return -ENOMEM;
1351
1352 return 0;
1353 }
1354
iwl_alloc_ucode(struct iwl_drv * drv,struct iwl_firmware_pieces * pieces,enum iwl_ucode_type type)1355 static int iwl_alloc_ucode(struct iwl_drv *drv,
1356 struct iwl_firmware_pieces *pieces,
1357 enum iwl_ucode_type type)
1358 {
1359 return iwl_alloc_ucode_mem(&drv->fw.img[type], &pieces->img[type]);
1360 }
1361
validate_sec_sizes(struct iwl_drv * drv,struct iwl_firmware_pieces * pieces,const struct iwl_cfg * cfg)1362 static int validate_sec_sizes(struct iwl_drv *drv,
1363 struct iwl_firmware_pieces *pieces,
1364 const struct iwl_cfg *cfg)
1365 {
1366 IWL_DEBUG_INFO(drv, "f/w package hdr runtime inst size = %zd\n",
1367 get_sec_size(pieces, IWL_UCODE_REGULAR,
1368 IWL_UCODE_SECTION_INST));
1369 IWL_DEBUG_INFO(drv, "f/w package hdr runtime data size = %zd\n",
1370 get_sec_size(pieces, IWL_UCODE_REGULAR,
1371 IWL_UCODE_SECTION_DATA));
1372 IWL_DEBUG_INFO(drv, "f/w package hdr init inst size = %zd\n",
1373 get_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_INST));
1374 IWL_DEBUG_INFO(drv, "f/w package hdr init data size = %zd\n",
1375 get_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_DATA));
1376
1377 /* Verify that uCode images will fit in card's SRAM. */
1378 if (get_sec_size(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_INST) >
1379 cfg->max_inst_size) {
1380 IWL_ERR(drv, "uCode instr len %zd too large to fit in\n",
1381 get_sec_size(pieces, IWL_UCODE_REGULAR,
1382 IWL_UCODE_SECTION_INST));
1383 return -1;
1384 }
1385
1386 if (get_sec_size(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_DATA) >
1387 cfg->max_data_size) {
1388 IWL_ERR(drv, "uCode data len %zd too large to fit in\n",
1389 get_sec_size(pieces, IWL_UCODE_REGULAR,
1390 IWL_UCODE_SECTION_DATA));
1391 return -1;
1392 }
1393
1394 if (get_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_INST) >
1395 cfg->max_inst_size) {
1396 IWL_ERR(drv, "uCode init instr len %zd too large to fit in\n",
1397 get_sec_size(pieces, IWL_UCODE_INIT,
1398 IWL_UCODE_SECTION_INST));
1399 return -1;
1400 }
1401
1402 if (get_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_DATA) >
1403 cfg->max_data_size) {
1404 IWL_ERR(drv, "uCode init data len %zd too large to fit in\n",
1405 get_sec_size(pieces, IWL_UCODE_REGULAR,
1406 IWL_UCODE_SECTION_DATA));
1407 return -1;
1408 }
1409 return 0;
1410 }
1411
1412 static struct iwl_op_mode *
_iwl_op_mode_start(struct iwl_drv * drv,struct iwlwifi_opmode_table * op)1413 _iwl_op_mode_start(struct iwl_drv *drv, struct iwlwifi_opmode_table *op)
1414 {
1415 const struct iwl_op_mode_ops *ops = op->ops;
1416 struct dentry *dbgfs_dir = NULL;
1417 struct iwl_op_mode *op_mode = NULL;
1418 int retry, max_retry = !!iwlwifi_mod_params.fw_restart * IWL_MAX_INIT_RETRY;
1419
1420 /* also protects start/stop from racing against each other */
1421 lockdep_assert_held(&iwlwifi_opmode_table_mtx);
1422
1423 for (retry = 0; retry <= max_retry; retry++) {
1424
1425 #ifdef CONFIG_IWLWIFI_DEBUGFS
1426 drv->dbgfs_op_mode = debugfs_create_dir(op->name,
1427 drv->dbgfs_drv);
1428 dbgfs_dir = drv->dbgfs_op_mode;
1429 #endif
1430
1431 op_mode = ops->start(drv->trans, drv->trans->cfg,
1432 &drv->fw, dbgfs_dir);
1433
1434 if (!IS_ERR(op_mode))
1435 return op_mode;
1436
1437 if (test_bit(STATUS_TRANS_DEAD, &drv->trans->status))
1438 break;
1439
1440 #ifdef CONFIG_IWLWIFI_DEBUGFS
1441 debugfs_remove_recursive(drv->dbgfs_op_mode);
1442 drv->dbgfs_op_mode = NULL;
1443 #endif
1444
1445 if (PTR_ERR(op_mode) != -ETIMEDOUT)
1446 break;
1447
1448 IWL_ERR(drv, "retry init count %d\n", retry);
1449 }
1450
1451 return NULL;
1452 }
1453
_iwl_op_mode_stop(struct iwl_drv * drv)1454 static void _iwl_op_mode_stop(struct iwl_drv *drv)
1455 {
1456 /* also protects start/stop from racing against each other */
1457 lockdep_assert_held(&iwlwifi_opmode_table_mtx);
1458
1459 /* op_mode can be NULL if its start failed */
1460 if (drv->op_mode) {
1461 iwl_op_mode_stop(drv->op_mode);
1462 drv->op_mode = NULL;
1463
1464 #ifdef CONFIG_IWLWIFI_DEBUGFS
1465 debugfs_remove_recursive(drv->dbgfs_op_mode);
1466 drv->dbgfs_op_mode = NULL;
1467 #endif
1468 }
1469 }
1470
1471 /*
1472 * iwl_req_fw_callback - callback when firmware was loaded
1473 *
1474 * If loaded successfully, copies the firmware into buffers
1475 * for the card to fetch (via DMA).
1476 */
iwl_req_fw_callback(const struct firmware * ucode_raw,void * context)1477 static void iwl_req_fw_callback(const struct firmware *ucode_raw, void *context)
1478 {
1479 struct iwl_drv *drv = context;
1480 struct iwl_fw *fw = &drv->fw;
1481 const struct iwl_ucode_header *ucode;
1482 struct iwlwifi_opmode_table *op;
1483 int err;
1484 struct iwl_firmware_pieces *pieces;
1485 const unsigned int api_max = drv->trans->cfg->ucode_api_max;
1486 const unsigned int api_min = drv->trans->cfg->ucode_api_min;
1487 size_t trigger_tlv_sz[FW_DBG_TRIGGER_MAX];
1488 u32 api_ver;
1489 int i;
1490 bool usniffer_images = false;
1491 bool failure = true;
1492
1493 fw->ucode_capa.max_probe_length = IWL_DEFAULT_MAX_PROBE_LENGTH;
1494 fw->ucode_capa.standard_phy_calibration_size =
1495 IWL_DEFAULT_STANDARD_PHY_CALIBRATE_TBL_SIZE;
1496 fw->ucode_capa.n_scan_channels = IWL_DEFAULT_SCAN_CHANNELS;
1497 fw->ucode_capa.num_stations = IWL_STATION_COUNT_MAX;
1498 fw->ucode_capa.num_beacons = 1;
1499 /* dump all fw memory areas by default */
1500 fw->dbg.dump_mask = 0xffffffff;
1501
1502 pieces = kzalloc(sizeof(*pieces), GFP_KERNEL);
1503 if (!pieces)
1504 goto out_free_fw;
1505
1506 if (!ucode_raw)
1507 goto try_again;
1508
1509 IWL_DEBUG_FW_INFO(drv, "Loaded firmware file '%s' (%zd bytes).\n",
1510 drv->firmware_name, ucode_raw->size);
1511
1512 /* Make sure that we got at least the API version number */
1513 if (ucode_raw->size < 4) {
1514 IWL_ERR(drv, "File size way too small!\n");
1515 goto try_again;
1516 }
1517
1518 /* Data from ucode file: header followed by uCode images */
1519 ucode = (const struct iwl_ucode_header *)ucode_raw->data;
1520
1521 if (ucode->ver)
1522 err = iwl_parse_v1_v2_firmware(drv, ucode_raw, pieces);
1523 else
1524 err = iwl_parse_tlv_firmware(drv, ucode_raw, pieces,
1525 &fw->ucode_capa, &usniffer_images);
1526
1527 if (err)
1528 goto try_again;
1529
1530 if (fw_has_api(&drv->fw.ucode_capa, IWL_UCODE_TLV_API_NEW_VERSION))
1531 api_ver = drv->fw.ucode_ver;
1532 else
1533 api_ver = IWL_UCODE_API(drv->fw.ucode_ver);
1534
1535 /*
1536 * api_ver should match the api version forming part of the
1537 * firmware filename ... but we don't check for that and only rely
1538 * on the API version read from firmware header from here on forward
1539 */
1540 if (api_ver < api_min || api_ver > api_max) {
1541 IWL_ERR(drv,
1542 "Driver unable to support your firmware API. "
1543 "Driver supports v%u, firmware is v%u.\n",
1544 api_max, api_ver);
1545 goto try_again;
1546 }
1547
1548 /*
1549 * In mvm uCode there is no difference between data and instructions
1550 * sections.
1551 */
1552 if (fw->type == IWL_FW_DVM && validate_sec_sizes(drv, pieces,
1553 drv->trans->cfg))
1554 goto try_again;
1555
1556 /* Allocate ucode buffers for card's bus-master loading ... */
1557
1558 /* Runtime instructions and 2 copies of data:
1559 * 1) unmodified from disk
1560 * 2) backup cache for save/restore during power-downs
1561 */
1562 for (i = 0; i < IWL_UCODE_TYPE_MAX; i++)
1563 if (iwl_alloc_ucode(drv, pieces, i))
1564 goto out_free_fw;
1565
1566 if (pieces->dbg_dest_tlv_init) {
1567 size_t dbg_dest_size = sizeof(*drv->fw.dbg.dest_tlv) +
1568 sizeof(drv->fw.dbg.dest_tlv->reg_ops[0]) *
1569 drv->fw.dbg.n_dest_reg;
1570
1571 drv->fw.dbg.dest_tlv = kmalloc(dbg_dest_size, GFP_KERNEL);
1572
1573 if (!drv->fw.dbg.dest_tlv)
1574 goto out_free_fw;
1575
1576 if (*pieces->dbg_dest_ver == 0) {
1577 memcpy(drv->fw.dbg.dest_tlv, pieces->dbg_dest_tlv_v1,
1578 dbg_dest_size);
1579 } else {
1580 struct iwl_fw_dbg_dest_tlv_v1 *dest_tlv =
1581 drv->fw.dbg.dest_tlv;
1582
1583 dest_tlv->version = pieces->dbg_dest_tlv->version;
1584 dest_tlv->monitor_mode =
1585 pieces->dbg_dest_tlv->monitor_mode;
1586 dest_tlv->size_power =
1587 pieces->dbg_dest_tlv->size_power;
1588 dest_tlv->wrap_count =
1589 pieces->dbg_dest_tlv->wrap_count;
1590 dest_tlv->write_ptr_reg =
1591 pieces->dbg_dest_tlv->write_ptr_reg;
1592 dest_tlv->base_shift =
1593 pieces->dbg_dest_tlv->base_shift;
1594 memcpy(dest_tlv->reg_ops,
1595 pieces->dbg_dest_tlv->reg_ops,
1596 sizeof(drv->fw.dbg.dest_tlv->reg_ops[0]) *
1597 drv->fw.dbg.n_dest_reg);
1598
1599 /* In version 1 of the destination tlv, which is
1600 * relevant for internal buffer exclusively,
1601 * the base address is part of given with the length
1602 * of the buffer, and the size shift is give instead of
1603 * end shift. We now store these values in base_reg,
1604 * and end shift, and when dumping the data we'll
1605 * manipulate it for extracting both the length and
1606 * base address */
1607 dest_tlv->base_reg = pieces->dbg_dest_tlv->cfg_reg;
1608 dest_tlv->end_shift =
1609 pieces->dbg_dest_tlv->size_shift;
1610 }
1611 }
1612
1613 for (i = 0; i < ARRAY_SIZE(drv->fw.dbg.conf_tlv); i++) {
1614 if (pieces->dbg_conf_tlv[i]) {
1615 drv->fw.dbg.conf_tlv[i] =
1616 kmemdup(pieces->dbg_conf_tlv[i],
1617 pieces->dbg_conf_tlv_len[i],
1618 GFP_KERNEL);
1619 if (!drv->fw.dbg.conf_tlv[i])
1620 goto out_free_fw;
1621 }
1622 }
1623
1624 memset(&trigger_tlv_sz, 0xff, sizeof(trigger_tlv_sz));
1625
1626 trigger_tlv_sz[FW_DBG_TRIGGER_MISSED_BEACONS] =
1627 sizeof(struct iwl_fw_dbg_trigger_missed_bcon);
1628 trigger_tlv_sz[FW_DBG_TRIGGER_CHANNEL_SWITCH] = 0;
1629 trigger_tlv_sz[FW_DBG_TRIGGER_FW_NOTIF] =
1630 sizeof(struct iwl_fw_dbg_trigger_cmd);
1631 trigger_tlv_sz[FW_DBG_TRIGGER_MLME] =
1632 sizeof(struct iwl_fw_dbg_trigger_mlme);
1633 trigger_tlv_sz[FW_DBG_TRIGGER_STATS] =
1634 sizeof(struct iwl_fw_dbg_trigger_stats);
1635 trigger_tlv_sz[FW_DBG_TRIGGER_RSSI] =
1636 sizeof(struct iwl_fw_dbg_trigger_low_rssi);
1637 trigger_tlv_sz[FW_DBG_TRIGGER_TXQ_TIMERS] =
1638 sizeof(struct iwl_fw_dbg_trigger_txq_timer);
1639 trigger_tlv_sz[FW_DBG_TRIGGER_TIME_EVENT] =
1640 sizeof(struct iwl_fw_dbg_trigger_time_event);
1641 trigger_tlv_sz[FW_DBG_TRIGGER_BA] =
1642 sizeof(struct iwl_fw_dbg_trigger_ba);
1643 trigger_tlv_sz[FW_DBG_TRIGGER_TDLS] =
1644 sizeof(struct iwl_fw_dbg_trigger_tdls);
1645
1646 for (i = 0; i < ARRAY_SIZE(drv->fw.dbg.trigger_tlv); i++) {
1647 if (pieces->dbg_trigger_tlv[i]) {
1648 /*
1649 * If the trigger isn't long enough, WARN and exit.
1650 * Someone is trying to debug something and he won't
1651 * be able to catch the bug he is trying to chase.
1652 * We'd better be noisy to be sure he knows what's
1653 * going on.
1654 */
1655 if (WARN_ON(pieces->dbg_trigger_tlv_len[i] <
1656 (trigger_tlv_sz[i] +
1657 sizeof(struct iwl_fw_dbg_trigger_tlv))))
1658 goto out_free_fw;
1659 drv->fw.dbg.trigger_tlv_len[i] =
1660 pieces->dbg_trigger_tlv_len[i];
1661 drv->fw.dbg.trigger_tlv[i] =
1662 kmemdup(pieces->dbg_trigger_tlv[i],
1663 drv->fw.dbg.trigger_tlv_len[i],
1664 GFP_KERNEL);
1665 if (!drv->fw.dbg.trigger_tlv[i])
1666 goto out_free_fw;
1667 }
1668 }
1669
1670 /* Now that we can no longer fail, copy information */
1671
1672 drv->fw.dbg.mem_tlv = pieces->dbg_mem_tlv;
1673 pieces->dbg_mem_tlv = NULL;
1674 drv->fw.dbg.n_mem_tlv = pieces->n_mem_tlv;
1675
1676 /*
1677 * The (size - 16) / 12 formula is based on the information recorded
1678 * for each event, which is of mode 1 (including timestamp) for all
1679 * new microcodes that include this information.
1680 */
1681 fw->init_evtlog_ptr = pieces->init_evtlog_ptr;
1682 if (pieces->init_evtlog_size)
1683 fw->init_evtlog_size = (pieces->init_evtlog_size - 16)/12;
1684 else
1685 fw->init_evtlog_size =
1686 drv->trans->trans_cfg->base_params->max_event_log_size;
1687 fw->init_errlog_ptr = pieces->init_errlog_ptr;
1688 fw->inst_evtlog_ptr = pieces->inst_evtlog_ptr;
1689 if (pieces->inst_evtlog_size)
1690 fw->inst_evtlog_size = (pieces->inst_evtlog_size - 16)/12;
1691 else
1692 fw->inst_evtlog_size =
1693 drv->trans->trans_cfg->base_params->max_event_log_size;
1694 fw->inst_errlog_ptr = pieces->inst_errlog_ptr;
1695
1696 /*
1697 * figure out the offset of chain noise reset and gain commands
1698 * base on the size of standard phy calibration commands table size
1699 */
1700 if (fw->ucode_capa.standard_phy_calibration_size >
1701 IWL_MAX_PHY_CALIBRATE_TBL_SIZE)
1702 fw->ucode_capa.standard_phy_calibration_size =
1703 IWL_MAX_STANDARD_PHY_CALIBRATE_TBL_SIZE;
1704
1705 /* We have our copies now, allow OS release its copies */
1706 release_firmware(ucode_raw);
1707
1708 iwl_dbg_tlv_load_bin(drv->trans->dev, drv->trans);
1709
1710 mutex_lock(&iwlwifi_opmode_table_mtx);
1711 switch (fw->type) {
1712 case IWL_FW_DVM:
1713 op = &iwlwifi_opmode_table[DVM_OP_MODE];
1714 break;
1715 default:
1716 WARN(1, "Invalid fw type %d\n", fw->type);
1717 fallthrough;
1718 case IWL_FW_MVM:
1719 op = &iwlwifi_opmode_table[MVM_OP_MODE];
1720 break;
1721 }
1722
1723 IWL_INFO(drv, "loaded firmware version %s op_mode %s\n",
1724 drv->fw.fw_version, op->name);
1725
1726 /* add this device to the list of devices using this op_mode */
1727 list_add_tail(&drv->list, &op->drv);
1728
1729 if (op->ops) {
1730 drv->op_mode = _iwl_op_mode_start(drv, op);
1731
1732 if (!drv->op_mode) {
1733 mutex_unlock(&iwlwifi_opmode_table_mtx);
1734 goto out_unbind;
1735 }
1736 } else {
1737 request_module_nowait("%s", op->name);
1738 }
1739 mutex_unlock(&iwlwifi_opmode_table_mtx);
1740
1741 complete(&drv->request_firmware_complete);
1742
1743 failure = false;
1744 goto free;
1745
1746 try_again:
1747 /* try next, if any */
1748 release_firmware(ucode_raw);
1749 if (iwl_request_firmware(drv, false))
1750 goto out_unbind;
1751 goto free;
1752
1753 out_free_fw:
1754 release_firmware(ucode_raw);
1755 out_unbind:
1756 complete(&drv->request_firmware_complete);
1757 device_release_driver(drv->trans->dev);
1758 /* drv has just been freed by the release */
1759 failure = false;
1760 free:
1761 if (failure)
1762 iwl_dealloc_ucode(drv);
1763
1764 if (pieces) {
1765 for (i = 0; i < ARRAY_SIZE(pieces->img); i++)
1766 kfree(pieces->img[i].sec);
1767 kfree(pieces->dbg_mem_tlv);
1768 kfree(pieces);
1769 }
1770 }
1771
iwl_drv_start(struct iwl_trans * trans)1772 struct iwl_drv *iwl_drv_start(struct iwl_trans *trans)
1773 {
1774 struct iwl_drv *drv;
1775 int ret;
1776
1777 drv = kzalloc(sizeof(*drv), GFP_KERNEL);
1778 if (!drv) {
1779 ret = -ENOMEM;
1780 goto err;
1781 }
1782
1783 drv->trans = trans;
1784 drv->dev = trans->dev;
1785
1786 init_completion(&drv->request_firmware_complete);
1787 INIT_LIST_HEAD(&drv->list);
1788
1789 #ifdef CONFIG_IWLWIFI_DEBUGFS
1790 /* Create the device debugfs entries. */
1791 drv->dbgfs_drv = debugfs_create_dir(dev_name(trans->dev),
1792 iwl_dbgfs_root);
1793
1794 /* Create transport layer debugfs dir */
1795 drv->trans->dbgfs_dir = debugfs_create_dir("trans", drv->dbgfs_drv);
1796 #endif
1797
1798 drv->trans->dbg.domains_bitmap = IWL_TRANS_FW_DBG_DOMAIN(drv->trans);
1799 if (iwlwifi_mod_params.enable_ini != ENABLE_INI) {
1800 /* We have a non-default value in the module parameter,
1801 * take its value
1802 */
1803 drv->trans->dbg.domains_bitmap &= 0xffff;
1804 if (iwlwifi_mod_params.enable_ini != IWL_FW_INI_PRESET_DISABLE) {
1805 if (iwlwifi_mod_params.enable_ini > ENABLE_INI) {
1806 IWL_ERR(trans,
1807 "invalid enable_ini module parameter value: max = %d, using 0 instead\n",
1808 ENABLE_INI);
1809 iwlwifi_mod_params.enable_ini = 0;
1810 }
1811 drv->trans->dbg.domains_bitmap =
1812 BIT(IWL_FW_DBG_DOMAIN_POS + iwlwifi_mod_params.enable_ini);
1813 }
1814 }
1815
1816 ret = iwl_request_firmware(drv, true);
1817 if (ret) {
1818 IWL_ERR(trans, "Couldn't request the fw\n");
1819 goto err_fw;
1820 }
1821
1822 return drv;
1823
1824 err_fw:
1825 #ifdef CONFIG_IWLWIFI_DEBUGFS
1826 debugfs_remove_recursive(drv->dbgfs_drv);
1827 #endif
1828 iwl_dbg_tlv_free(drv->trans);
1829 kfree(drv);
1830 err:
1831 return ERR_PTR(ret);
1832 }
1833
iwl_drv_stop(struct iwl_drv * drv)1834 void iwl_drv_stop(struct iwl_drv *drv)
1835 {
1836 wait_for_completion(&drv->request_firmware_complete);
1837
1838 mutex_lock(&iwlwifi_opmode_table_mtx);
1839
1840 _iwl_op_mode_stop(drv);
1841
1842 iwl_dealloc_ucode(drv);
1843
1844 /*
1845 * List is empty (this item wasn't added)
1846 * when firmware loading failed -- in that
1847 * case we can't remove it from any list.
1848 */
1849 if (!list_empty(&drv->list))
1850 list_del(&drv->list);
1851 mutex_unlock(&iwlwifi_opmode_table_mtx);
1852
1853 #ifdef CONFIG_IWLWIFI_DEBUGFS
1854 iwl_trans_debugfs_cleanup(drv->trans);
1855
1856 debugfs_remove_recursive(drv->dbgfs_drv);
1857 #endif
1858
1859 iwl_dbg_tlv_free(drv->trans);
1860
1861 kfree(drv);
1862 }
1863
1864 /* shared module parameters */
1865 struct iwl_mod_params iwlwifi_mod_params = {
1866 .fw_restart = true,
1867 .bt_coex_active = true,
1868 .power_level = IWL_POWER_INDEX_1,
1869 .uapsd_disable = IWL_DISABLE_UAPSD_BSS | IWL_DISABLE_UAPSD_P2P_CLIENT,
1870 .enable_ini = ENABLE_INI,
1871 /* the rest are 0 by default */
1872 };
1873 IWL_EXPORT_SYMBOL(iwlwifi_mod_params);
1874
iwl_opmode_register(const char * name,const struct iwl_op_mode_ops * ops)1875 int iwl_opmode_register(const char *name, const struct iwl_op_mode_ops *ops)
1876 {
1877 int i;
1878 struct iwl_drv *drv;
1879 struct iwlwifi_opmode_table *op;
1880
1881 mutex_lock(&iwlwifi_opmode_table_mtx);
1882 for (i = 0; i < ARRAY_SIZE(iwlwifi_opmode_table); i++) {
1883 op = &iwlwifi_opmode_table[i];
1884 if (strcmp(op->name, name))
1885 continue;
1886 op->ops = ops;
1887 /* TODO: need to handle exceptional case */
1888 list_for_each_entry(drv, &op->drv, list)
1889 drv->op_mode = _iwl_op_mode_start(drv, op);
1890
1891 mutex_unlock(&iwlwifi_opmode_table_mtx);
1892 return 0;
1893 }
1894 mutex_unlock(&iwlwifi_opmode_table_mtx);
1895 return -EIO;
1896 }
1897 IWL_EXPORT_SYMBOL(iwl_opmode_register);
1898
iwl_opmode_deregister(const char * name)1899 void iwl_opmode_deregister(const char *name)
1900 {
1901 int i;
1902 struct iwl_drv *drv;
1903
1904 mutex_lock(&iwlwifi_opmode_table_mtx);
1905 for (i = 0; i < ARRAY_SIZE(iwlwifi_opmode_table); i++) {
1906 if (strcmp(iwlwifi_opmode_table[i].name, name))
1907 continue;
1908 iwlwifi_opmode_table[i].ops = NULL;
1909
1910 /* call the stop routine for all devices */
1911 list_for_each_entry(drv, &iwlwifi_opmode_table[i].drv, list)
1912 _iwl_op_mode_stop(drv);
1913
1914 mutex_unlock(&iwlwifi_opmode_table_mtx);
1915 return;
1916 }
1917 mutex_unlock(&iwlwifi_opmode_table_mtx);
1918 }
1919 IWL_EXPORT_SYMBOL(iwl_opmode_deregister);
1920
iwl_drv_init(void)1921 static int __init iwl_drv_init(void)
1922 {
1923 int i, err;
1924
1925 for (i = 0; i < ARRAY_SIZE(iwlwifi_opmode_table); i++)
1926 INIT_LIST_HEAD(&iwlwifi_opmode_table[i].drv);
1927
1928 pr_info(DRV_DESCRIPTION "\n");
1929
1930 #ifdef CONFIG_IWLWIFI_DEBUGFS
1931 /* Create the root of iwlwifi debugfs subsystem. */
1932 iwl_dbgfs_root = debugfs_create_dir(DRV_NAME, NULL);
1933 #endif
1934
1935 err = iwl_pci_register_driver();
1936 if (err)
1937 goto cleanup_debugfs;
1938
1939 return 0;
1940
1941 cleanup_debugfs:
1942 #ifdef CONFIG_IWLWIFI_DEBUGFS
1943 debugfs_remove_recursive(iwl_dbgfs_root);
1944 #endif
1945 return err;
1946 }
1947 module_init(iwl_drv_init);
1948
iwl_drv_exit(void)1949 static void __exit iwl_drv_exit(void)
1950 {
1951 iwl_pci_unregister_driver();
1952 iwl_trans_free_restart_list();
1953
1954 #ifdef CONFIG_IWLWIFI_DEBUGFS
1955 debugfs_remove_recursive(iwl_dbgfs_root);
1956 #endif
1957 }
1958 module_exit(iwl_drv_exit);
1959
1960 #ifdef CONFIG_IWLWIFI_DEBUG
1961 module_param_named(debug, iwlwifi_mod_params.debug_level, uint, 0644);
1962 MODULE_PARM_DESC(debug, "debug output mask");
1963 #endif
1964
1965 module_param_named(swcrypto, iwlwifi_mod_params.swcrypto, int, 0444);
1966 MODULE_PARM_DESC(swcrypto, "using crypto in software (default 0 [hardware])");
1967 module_param_named(11n_disable, iwlwifi_mod_params.disable_11n, uint, 0444);
1968 MODULE_PARM_DESC(11n_disable,
1969 "disable 11n functionality, bitmap: 1: full, 2: disable agg TX, 4: disable agg RX, 8 enable agg TX");
1970 module_param_named(amsdu_size, iwlwifi_mod_params.amsdu_size, int, 0444);
1971 MODULE_PARM_DESC(amsdu_size,
1972 "amsdu size 0: 12K for multi Rx queue devices, 2K for AX210 devices, "
1973 "4K for other devices 1:4K 2:8K 3:12K (16K buffers) 4: 2K (default 0)");
1974 module_param_named(fw_restart, iwlwifi_mod_params.fw_restart, bool, 0444);
1975 MODULE_PARM_DESC(fw_restart, "restart firmware in case of error (default true)");
1976
1977 module_param_named(nvm_file, iwlwifi_mod_params.nvm_file, charp, 0444);
1978 MODULE_PARM_DESC(nvm_file, "NVM file name");
1979
1980 module_param_named(uapsd_disable, iwlwifi_mod_params.uapsd_disable, uint, 0644);
1981 MODULE_PARM_DESC(uapsd_disable,
1982 "disable U-APSD functionality bitmap 1: BSS 2: P2P Client (default: 3)");
1983
1984 module_param_named(enable_ini, iwlwifi_mod_params.enable_ini, uint, 0444);
1985 MODULE_PARM_DESC(enable_ini,
1986 "0:disable, 1-15:FW_DBG_PRESET Values, 16:enabled without preset value defined,"
1987 "Debug INI TLV FW debug infrastructure (default: 16)");
1988
1989 /*
1990 * set bt_coex_active to true, uCode will do kill/defer
1991 * every time the priority line is asserted (BT is sending signals on the
1992 * priority line in the PCIx).
1993 * set bt_coex_active to false, uCode will ignore the BT activity and
1994 * perform the normal operation
1995 *
1996 * User might experience transmit issue on some platform due to WiFi/BT
1997 * co-exist problem. The possible behaviors are:
1998 * Able to scan and finding all the available AP
1999 * Not able to associate with any AP
2000 * On those platforms, WiFi communication can be restored by set
2001 * "bt_coex_active" module parameter to "false"
2002 *
2003 * default: bt_coex_active = true (BT_COEX_ENABLE)
2004 */
2005 module_param_named(bt_coex_active, iwlwifi_mod_params.bt_coex_active,
2006 bool, 0444);
2007 MODULE_PARM_DESC(bt_coex_active, "enable wifi/bt co-exist (default: enable)");
2008
2009 module_param_named(led_mode, iwlwifi_mod_params.led_mode, int, 0444);
2010 MODULE_PARM_DESC(led_mode, "0=system default, "
2011 "1=On(RF On)/Off(RF Off), 2=blinking, 3=Off (default: 0)");
2012
2013 module_param_named(power_save, iwlwifi_mod_params.power_save, bool, 0444);
2014 MODULE_PARM_DESC(power_save,
2015 "enable WiFi power management (default: disable)");
2016
2017 module_param_named(power_level, iwlwifi_mod_params.power_level, int, 0444);
2018 MODULE_PARM_DESC(power_level,
2019 "default power save level (range from 1 - 5, default: 1)");
2020
2021 module_param_named(disable_11ac, iwlwifi_mod_params.disable_11ac, bool, 0444);
2022 MODULE_PARM_DESC(disable_11ac, "Disable VHT capabilities (default: false)");
2023
2024 module_param_named(remove_when_gone,
2025 iwlwifi_mod_params.remove_when_gone, bool,
2026 0444);
2027 MODULE_PARM_DESC(remove_when_gone,
2028 "Remove dev from PCIe bus if it is deemed inaccessible (default: false)");
2029
2030 module_param_named(disable_11ax, iwlwifi_mod_params.disable_11ax, bool,
2031 S_IRUGO);
2032 MODULE_PARM_DESC(disable_11ax, "Disable HE capabilities (default: false)");
2033
2034 module_param_named(disable_11be, iwlwifi_mod_params.disable_11be, bool, 0444);
2035 MODULE_PARM_DESC(disable_11be, "Disable EHT capabilities (default: false)");
2036