1 // SPDX-License-Identifier: GPL-2.0 OR BSD-3-Clause
2 /*
3 * Copyright (C) 2005-2014, 2018-2021 Intel Corporation
4 * Copyright (C) 2013-2015 Intel Mobile Communications GmbH
5 * Copyright (C) 2016-2017 Intel Deutschland GmbH
6 */
7 #include <linux/completion.h>
8 #include <linux/dma-mapping.h>
9 #include <linux/firmware.h>
10 #include <linux/module.h>
11 #include <linux/vmalloc.h>
12
13 #include "iwl-drv.h"
14 #include "iwl-csr.h"
15 #include "iwl-debug.h"
16 #include "iwl-trans.h"
17 #include "iwl-op-mode.h"
18 #include "iwl-agn-hw.h"
19 #include "fw/img.h"
20 #include "iwl-dbg-tlv.h"
21 #include "iwl-config.h"
22 #include "iwl-modparams.h"
23 #include "fw/api/alive.h"
24 #include "fw/api/mac.h"
25
26 /******************************************************************************
27 *
28 * module boiler plate
29 *
30 ******************************************************************************/
31
32 #define DRV_DESCRIPTION "Intel(R) Wireless WiFi driver for Linux"
33 MODULE_DESCRIPTION(DRV_DESCRIPTION);
34 MODULE_LICENSE("GPL");
35
36 #ifdef CONFIG_IWLWIFI_DEBUGFS
37 static 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 */
54 struct 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
74 enum {
75 DVM_OP_MODE,
76 MVM_OP_MODE,
77 };
78
79 /* Protects the table contents, i.e. the ops pointer & drv list */
80 static DEFINE_MUTEX(iwlwifi_opmode_table_mtx);
81 static 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 */
96 struct 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
iwl_free_fw_desc(struct iwl_drv * drv,struct fw_desc * desc)102 static 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
iwl_free_fw_img(struct iwl_drv * drv,struct fw_img * img)109 static 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
iwl_dealloc_ucode(struct iwl_drv * drv)117 static 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
iwl_alloc_fw_desc(struct iwl_drv * drv,struct fw_desc * desc,struct fw_sec * sec)140 static 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
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 return 'a' + step;
167 }
168
iwl_drv_get_fwname_pre(struct iwl_trans * trans,char * buf)169 const char *iwl_drv_get_fwname_pre(struct iwl_trans *trans, char *buf)
170 {
171 char mac_step, rf_step;
172 const char *rf, *cdb;
173
174 if (trans->cfg->fw_name_pre)
175 return trans->cfg->fw_name_pre;
176
177 if (WARN_ON(!trans->cfg->fw_name_mac))
178 return "unconfigured";
179
180 mac_step = iwl_drv_get_step(trans->hw_rev_step);
181
182 switch (CSR_HW_RFID_TYPE(trans->hw_rf_id)) {
183 case IWL_CFG_RF_TYPE_HR1:
184 case IWL_CFG_RF_TYPE_HR2:
185 rf = "hr";
186 break;
187 case IWL_CFG_RF_TYPE_GF:
188 rf = "gf";
189 break;
190 case IWL_CFG_RF_TYPE_MR:
191 rf = "mr";
192 break;
193 case IWL_CFG_RF_TYPE_MS:
194 rf = "ms";
195 break;
196 case IWL_CFG_RF_TYPE_FM:
197 rf = "fm";
198 break;
199 case IWL_CFG_RF_TYPE_WH:
200 rf = "wh";
201 break;
202 default:
203 return "unknown-rf";
204 }
205
206 cdb = CSR_HW_RFID_IS_CDB(trans->hw_rf_id) ? "4" : "";
207
208 rf_step = iwl_drv_get_step(CSR_HW_RFID_STEP(trans->hw_rf_id));
209
210 scnprintf(buf, FW_NAME_PRE_BUFSIZE,
211 "iwlwifi-%s-%c0-%s%s-%c0",
212 trans->cfg->fw_name_mac, mac_step,
213 rf, cdb, rf_step);
214
215 return buf;
216 }
217 IWL_EXPORT_SYMBOL(iwl_drv_get_fwname_pre);
218
219 static void iwl_req_fw_callback(const struct firmware *ucode_raw,
220 void *context);
221
iwl_request_firmware(struct iwl_drv * drv,bool first)222 static int iwl_request_firmware(struct iwl_drv *drv, bool first)
223 {
224 const struct iwl_cfg *cfg = drv->trans->cfg;
225 char _fw_name_pre[FW_NAME_PRE_BUFSIZE];
226 const char *fw_name_pre;
227
228 if (drv->trans->trans_cfg->device_family == IWL_DEVICE_FAMILY_9000 &&
229 (drv->trans->hw_rev_step != SILICON_B_STEP &&
230 drv->trans->hw_rev_step != SILICON_C_STEP)) {
231 IWL_ERR(drv,
232 "Only HW steps B and C are currently supported (0x%0x)\n",
233 drv->trans->hw_rev);
234 return -EINVAL;
235 }
236
237 fw_name_pre = iwl_drv_get_fwname_pre(drv->trans, _fw_name_pre);
238
239 if (first)
240 drv->fw_index = cfg->ucode_api_max;
241 else
242 drv->fw_index--;
243
244 if (drv->fw_index < cfg->ucode_api_min) {
245 IWL_ERR(drv, "no suitable firmware found!\n");
246
247 if (cfg->ucode_api_min == cfg->ucode_api_max) {
248 IWL_ERR(drv, "%s-%d is required\n", fw_name_pre,
249 cfg->ucode_api_max);
250 } else {
251 IWL_ERR(drv, "minimum version required: %s-%d\n",
252 fw_name_pre, cfg->ucode_api_min);
253 IWL_ERR(drv, "maximum version supported: %s-%d\n",
254 fw_name_pre, cfg->ucode_api_max);
255 }
256
257 IWL_ERR(drv,
258 "check git://git.kernel.org/pub/scm/linux/kernel/git/firmware/linux-firmware.git\n");
259 return -ENOENT;
260 }
261
262 snprintf(drv->firmware_name, sizeof(drv->firmware_name), "%s-%d.ucode",
263 fw_name_pre, drv->fw_index);
264
265 IWL_DEBUG_FW_INFO(drv, "attempting to load firmware '%s'\n",
266 drv->firmware_name);
267
268 return request_firmware_nowait(THIS_MODULE, 1, drv->firmware_name,
269 drv->trans->dev,
270 GFP_KERNEL, drv, iwl_req_fw_callback);
271 }
272
273 struct fw_img_parsing {
274 struct fw_sec *sec;
275 int sec_counter;
276 };
277
278 /*
279 * struct fw_sec_parsing: to extract fw section and it's offset from tlv
280 */
281 struct fw_sec_parsing {
282 __le32 offset;
283 const u8 data[];
284 } __packed;
285
286 /**
287 * struct iwl_tlv_calib_data - parse the default calib data from TLV
288 *
289 * @ucode_type: the uCode to which the following default calib relates.
290 * @calib: default calibrations.
291 */
292 struct iwl_tlv_calib_data {
293 __le32 ucode_type;
294 struct iwl_tlv_calib_ctrl calib;
295 } __packed;
296
297 struct iwl_firmware_pieces {
298 struct fw_img_parsing img[IWL_UCODE_TYPE_MAX];
299
300 u32 init_evtlog_ptr, init_evtlog_size, init_errlog_ptr;
301 u32 inst_evtlog_ptr, inst_evtlog_size, inst_errlog_ptr;
302
303 /* FW debug data parsed for driver usage */
304 bool dbg_dest_tlv_init;
305 const u8 *dbg_dest_ver;
306 union {
307 const struct iwl_fw_dbg_dest_tlv *dbg_dest_tlv;
308 const struct iwl_fw_dbg_dest_tlv_v1 *dbg_dest_tlv_v1;
309 };
310 const struct iwl_fw_dbg_conf_tlv *dbg_conf_tlv[FW_DBG_CONF_MAX];
311 size_t dbg_conf_tlv_len[FW_DBG_CONF_MAX];
312 const struct iwl_fw_dbg_trigger_tlv *dbg_trigger_tlv[FW_DBG_TRIGGER_MAX];
313 size_t dbg_trigger_tlv_len[FW_DBG_TRIGGER_MAX];
314 struct iwl_fw_dbg_mem_seg_tlv *dbg_mem_tlv;
315 size_t n_mem_tlv;
316 };
317
318 /*
319 * These functions are just to extract uCode section data from the pieces
320 * structure.
321 */
get_sec(struct iwl_firmware_pieces * pieces,enum iwl_ucode_type type,int sec)322 static struct fw_sec *get_sec(struct iwl_firmware_pieces *pieces,
323 enum iwl_ucode_type type,
324 int sec)
325 {
326 return &pieces->img[type].sec[sec];
327 }
328
alloc_sec_data(struct iwl_firmware_pieces * pieces,enum iwl_ucode_type type,int sec)329 static void alloc_sec_data(struct iwl_firmware_pieces *pieces,
330 enum iwl_ucode_type type,
331 int sec)
332 {
333 struct fw_img_parsing *img = &pieces->img[type];
334 struct fw_sec *sec_memory;
335 int size = sec + 1;
336 size_t alloc_size = sizeof(*img->sec) * size;
337
338 if (img->sec && img->sec_counter >= size)
339 return;
340
341 sec_memory = krealloc(img->sec, alloc_size, GFP_KERNEL);
342 if (!sec_memory)
343 return;
344
345 img->sec = sec_memory;
346 img->sec_counter = size;
347 }
348
set_sec_data(struct iwl_firmware_pieces * pieces,enum iwl_ucode_type type,int sec,const void * data)349 static void set_sec_data(struct iwl_firmware_pieces *pieces,
350 enum iwl_ucode_type type,
351 int sec,
352 const void *data)
353 {
354 alloc_sec_data(pieces, type, sec);
355
356 pieces->img[type].sec[sec].data = data;
357 }
358
set_sec_size(struct iwl_firmware_pieces * pieces,enum iwl_ucode_type type,int sec,size_t size)359 static void set_sec_size(struct iwl_firmware_pieces *pieces,
360 enum iwl_ucode_type type,
361 int sec,
362 size_t size)
363 {
364 alloc_sec_data(pieces, type, sec);
365
366 pieces->img[type].sec[sec].size = size;
367 }
368
get_sec_size(struct iwl_firmware_pieces * pieces,enum iwl_ucode_type type,int sec)369 static size_t get_sec_size(struct iwl_firmware_pieces *pieces,
370 enum iwl_ucode_type type,
371 int sec)
372 {
373 return pieces->img[type].sec[sec].size;
374 }
375
set_sec_offset(struct iwl_firmware_pieces * pieces,enum iwl_ucode_type type,int sec,u32 offset)376 static void set_sec_offset(struct iwl_firmware_pieces *pieces,
377 enum iwl_ucode_type type,
378 int sec,
379 u32 offset)
380 {
381 alloc_sec_data(pieces, type, sec);
382
383 pieces->img[type].sec[sec].offset = offset;
384 }
385
386 /*
387 * Gets uCode section from tlv.
388 */
iwl_store_ucode_sec(struct iwl_firmware_pieces * pieces,const void * data,enum iwl_ucode_type type,int size)389 static int iwl_store_ucode_sec(struct iwl_firmware_pieces *pieces,
390 const void *data, enum iwl_ucode_type type,
391 int size)
392 {
393 struct fw_img_parsing *img;
394 struct fw_sec *sec;
395 const struct fw_sec_parsing *sec_parse;
396 size_t alloc_size;
397
398 if (WARN_ON(!pieces || !data || type >= IWL_UCODE_TYPE_MAX))
399 return -1;
400
401 sec_parse = (const struct fw_sec_parsing *)data;
402
403 img = &pieces->img[type];
404
405 alloc_size = sizeof(*img->sec) * (img->sec_counter + 1);
406 sec = krealloc(img->sec, alloc_size, GFP_KERNEL);
407 if (!sec)
408 return -ENOMEM;
409 img->sec = sec;
410
411 sec = &img->sec[img->sec_counter];
412
413 sec->offset = le32_to_cpu(sec_parse->offset);
414 sec->data = sec_parse->data;
415 sec->size = size - sizeof(sec_parse->offset);
416
417 ++img->sec_counter;
418
419 return 0;
420 }
421
iwl_set_default_calib(struct iwl_drv * drv,const u8 * data)422 static int iwl_set_default_calib(struct iwl_drv *drv, const u8 *data)
423 {
424 const struct iwl_tlv_calib_data *def_calib =
425 (const struct iwl_tlv_calib_data *)data;
426 u32 ucode_type = le32_to_cpu(def_calib->ucode_type);
427 if (ucode_type >= IWL_UCODE_TYPE_MAX) {
428 IWL_ERR(drv, "Wrong ucode_type %u for default calibration.\n",
429 ucode_type);
430 return -EINVAL;
431 }
432 drv->fw.default_calib[ucode_type].flow_trigger =
433 def_calib->calib.flow_trigger;
434 drv->fw.default_calib[ucode_type].event_trigger =
435 def_calib->calib.event_trigger;
436
437 return 0;
438 }
439
iwl_set_ucode_api_flags(struct iwl_drv * drv,const u8 * data,struct iwl_ucode_capabilities * capa)440 static void iwl_set_ucode_api_flags(struct iwl_drv *drv, const u8 *data,
441 struct iwl_ucode_capabilities *capa)
442 {
443 const struct iwl_ucode_api *ucode_api = (const void *)data;
444 u32 api_index = le32_to_cpu(ucode_api->api_index);
445 u32 api_flags = le32_to_cpu(ucode_api->api_flags);
446 int i;
447
448 if (api_index >= DIV_ROUND_UP(NUM_IWL_UCODE_TLV_API, 32)) {
449 IWL_WARN(drv,
450 "api flags index %d larger than supported by driver\n",
451 api_index);
452 return;
453 }
454
455 for (i = 0; i < 32; i++) {
456 if (api_flags & BIT(i))
457 __set_bit(i + 32 * api_index, capa->_api);
458 }
459 }
460
iwl_set_ucode_capabilities(struct iwl_drv * drv,const u8 * data,struct iwl_ucode_capabilities * capa)461 static void iwl_set_ucode_capabilities(struct iwl_drv *drv, const u8 *data,
462 struct iwl_ucode_capabilities *capa)
463 {
464 const struct iwl_ucode_capa *ucode_capa = (const void *)data;
465 u32 api_index = le32_to_cpu(ucode_capa->api_index);
466 u32 api_flags = le32_to_cpu(ucode_capa->api_capa);
467 int i;
468
469 if (api_index >= DIV_ROUND_UP(NUM_IWL_UCODE_TLV_CAPA, 32)) {
470 IWL_WARN(drv,
471 "capa flags index %d larger than supported by driver\n",
472 api_index);
473 return;
474 }
475
476 for (i = 0; i < 32; i++) {
477 if (api_flags & BIT(i))
478 __set_bit(i + 32 * api_index, capa->_capa);
479 }
480 }
481
iwl_reduced_fw_name(struct iwl_drv * drv)482 static const char *iwl_reduced_fw_name(struct iwl_drv *drv)
483 {
484 const char *name = drv->firmware_name;
485
486 if (strncmp(name, "iwlwifi-", 8) == 0)
487 name += 8;
488
489 return name;
490 }
491
iwl_parse_v1_v2_firmware(struct iwl_drv * drv,const struct firmware * ucode_raw,struct iwl_firmware_pieces * pieces)492 static int iwl_parse_v1_v2_firmware(struct iwl_drv *drv,
493 const struct firmware *ucode_raw,
494 struct iwl_firmware_pieces *pieces)
495 {
496 const struct iwl_ucode_header *ucode = (const void *)ucode_raw->data;
497 u32 api_ver, hdr_size, build;
498 char buildstr[25];
499 const u8 *src;
500
501 drv->fw.ucode_ver = le32_to_cpu(ucode->ver);
502 api_ver = IWL_UCODE_API(drv->fw.ucode_ver);
503
504 switch (api_ver) {
505 default:
506 hdr_size = 28;
507 if (ucode_raw->size < hdr_size) {
508 IWL_ERR(drv, "File size too small!\n");
509 return -EINVAL;
510 }
511 build = le32_to_cpu(ucode->u.v2.build);
512 set_sec_size(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_INST,
513 le32_to_cpu(ucode->u.v2.inst_size));
514 set_sec_size(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_DATA,
515 le32_to_cpu(ucode->u.v2.data_size));
516 set_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_INST,
517 le32_to_cpu(ucode->u.v2.init_size));
518 set_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_DATA,
519 le32_to_cpu(ucode->u.v2.init_data_size));
520 src = ucode->u.v2.data;
521 break;
522 case 0:
523 case 1:
524 case 2:
525 hdr_size = 24;
526 if (ucode_raw->size < hdr_size) {
527 IWL_ERR(drv, "File size too small!\n");
528 return -EINVAL;
529 }
530 build = 0;
531 set_sec_size(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_INST,
532 le32_to_cpu(ucode->u.v1.inst_size));
533 set_sec_size(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_DATA,
534 le32_to_cpu(ucode->u.v1.data_size));
535 set_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_INST,
536 le32_to_cpu(ucode->u.v1.init_size));
537 set_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_DATA,
538 le32_to_cpu(ucode->u.v1.init_data_size));
539 src = ucode->u.v1.data;
540 break;
541 }
542
543 if (build)
544 sprintf(buildstr, " build %u", build);
545 else
546 buildstr[0] = '\0';
547
548 snprintf(drv->fw.fw_version,
549 sizeof(drv->fw.fw_version),
550 "%u.%u.%u.%u%s %s",
551 IWL_UCODE_MAJOR(drv->fw.ucode_ver),
552 IWL_UCODE_MINOR(drv->fw.ucode_ver),
553 IWL_UCODE_API(drv->fw.ucode_ver),
554 IWL_UCODE_SERIAL(drv->fw.ucode_ver),
555 buildstr, iwl_reduced_fw_name(drv));
556
557 /* Verify size of file vs. image size info in file's header */
558
559 if (ucode_raw->size != hdr_size +
560 get_sec_size(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_INST) +
561 get_sec_size(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_DATA) +
562 get_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_INST) +
563 get_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_DATA)) {
564
565 IWL_ERR(drv,
566 "uCode file size %d does not match expected size\n",
567 (int)ucode_raw->size);
568 return -EINVAL;
569 }
570
571
572 set_sec_data(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_INST, src);
573 src += get_sec_size(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_INST);
574 set_sec_offset(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_INST,
575 IWLAGN_RTC_INST_LOWER_BOUND);
576 set_sec_data(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_DATA, src);
577 src += get_sec_size(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_DATA);
578 set_sec_offset(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_DATA,
579 IWLAGN_RTC_DATA_LOWER_BOUND);
580 set_sec_data(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_INST, src);
581 src += get_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_INST);
582 set_sec_offset(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_INST,
583 IWLAGN_RTC_INST_LOWER_BOUND);
584 set_sec_data(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_DATA, src);
585 src += get_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_DATA);
586 set_sec_offset(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_DATA,
587 IWLAGN_RTC_DATA_LOWER_BOUND);
588 return 0;
589 }
590
iwl_drv_set_dump_exclude(struct iwl_drv * drv,enum iwl_ucode_tlv_type tlv_type,const void * tlv_data,u32 tlv_len)591 static void iwl_drv_set_dump_exclude(struct iwl_drv *drv,
592 enum iwl_ucode_tlv_type tlv_type,
593 const void *tlv_data, u32 tlv_len)
594 {
595 const struct iwl_fw_dump_exclude *fw = tlv_data;
596 struct iwl_dump_exclude *excl;
597
598 if (tlv_len < sizeof(*fw))
599 return;
600
601 if (tlv_type == IWL_UCODE_TLV_SEC_TABLE_ADDR) {
602 excl = &drv->fw.dump_excl[0];
603
604 /* second time we find this, it's for WoWLAN */
605 if (excl->addr)
606 excl = &drv->fw.dump_excl_wowlan[0];
607 } else if (fw_has_capa(&drv->fw.ucode_capa,
608 IWL_UCODE_TLV_CAPA_CNSLDTD_D3_D0_IMG)) {
609 /* IWL_UCODE_TLV_D3_KEK_KCK_ADDR is regular image */
610 excl = &drv->fw.dump_excl[0];
611 } else {
612 /* IWL_UCODE_TLV_D3_KEK_KCK_ADDR is WoWLAN image */
613 excl = &drv->fw.dump_excl_wowlan[0];
614 }
615
616 if (excl->addr)
617 excl++;
618
619 if (excl->addr) {
620 IWL_DEBUG_FW_INFO(drv, "found too many excludes in fw file\n");
621 return;
622 }
623
624 excl->addr = le32_to_cpu(fw->addr) & ~FW_ADDR_CACHE_CONTROL;
625 excl->size = le32_to_cpu(fw->size);
626 }
627
iwl_parse_dbg_tlv_assert_tables(struct iwl_drv * drv,const struct iwl_ucode_tlv * tlv)628 static void iwl_parse_dbg_tlv_assert_tables(struct iwl_drv *drv,
629 const struct iwl_ucode_tlv *tlv)
630 {
631 const struct iwl_fw_ini_region_tlv *region;
632 u32 length = le32_to_cpu(tlv->length);
633 u32 addr;
634
635 if (length < offsetof(typeof(*region), special_mem) +
636 sizeof(region->special_mem))
637 return;
638
639 region = (const void *)tlv->data;
640 addr = le32_to_cpu(region->special_mem.base_addr);
641 addr += le32_to_cpu(region->special_mem.offset);
642 addr &= ~FW_ADDR_CACHE_CONTROL;
643
644 if (region->type != IWL_FW_INI_REGION_SPECIAL_DEVICE_MEMORY)
645 return;
646
647 switch (region->sub_type) {
648 case IWL_FW_INI_REGION_DEVICE_MEMORY_SUBTYPE_UMAC_ERROR_TABLE:
649 drv->trans->dbg.umac_error_event_table = addr;
650 drv->trans->dbg.error_event_table_tlv_status |=
651 IWL_ERROR_EVENT_TABLE_UMAC;
652 break;
653 case IWL_FW_INI_REGION_DEVICE_MEMORY_SUBTYPE_LMAC_1_ERROR_TABLE:
654 drv->trans->dbg.lmac_error_event_table[0] = addr;
655 drv->trans->dbg.error_event_table_tlv_status |=
656 IWL_ERROR_EVENT_TABLE_LMAC1;
657 break;
658 case IWL_FW_INI_REGION_DEVICE_MEMORY_SUBTYPE_LMAC_2_ERROR_TABLE:
659 drv->trans->dbg.lmac_error_event_table[1] = addr;
660 drv->trans->dbg.error_event_table_tlv_status |=
661 IWL_ERROR_EVENT_TABLE_LMAC2;
662 break;
663 case IWL_FW_INI_REGION_DEVICE_MEMORY_SUBTYPE_TCM_1_ERROR_TABLE:
664 drv->trans->dbg.tcm_error_event_table[0] = addr;
665 drv->trans->dbg.error_event_table_tlv_status |=
666 IWL_ERROR_EVENT_TABLE_TCM1;
667 break;
668 case IWL_FW_INI_REGION_DEVICE_MEMORY_SUBTYPE_TCM_2_ERROR_TABLE:
669 drv->trans->dbg.tcm_error_event_table[1] = addr;
670 drv->trans->dbg.error_event_table_tlv_status |=
671 IWL_ERROR_EVENT_TABLE_TCM2;
672 break;
673 case IWL_FW_INI_REGION_DEVICE_MEMORY_SUBTYPE_RCM_1_ERROR_TABLE:
674 drv->trans->dbg.rcm_error_event_table[0] = addr;
675 drv->trans->dbg.error_event_table_tlv_status |=
676 IWL_ERROR_EVENT_TABLE_RCM1;
677 break;
678 case IWL_FW_INI_REGION_DEVICE_MEMORY_SUBTYPE_RCM_2_ERROR_TABLE:
679 drv->trans->dbg.rcm_error_event_table[1] = addr;
680 drv->trans->dbg.error_event_table_tlv_status |=
681 IWL_ERROR_EVENT_TABLE_RCM2;
682 break;
683 default:
684 break;
685 }
686 }
687
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)688 static int iwl_parse_tlv_firmware(struct iwl_drv *drv,
689 const struct firmware *ucode_raw,
690 struct iwl_firmware_pieces *pieces,
691 struct iwl_ucode_capabilities *capa,
692 bool *usniffer_images)
693 {
694 const struct iwl_tlv_ucode_header *ucode = (const void *)ucode_raw->data;
695 const struct iwl_ucode_tlv *tlv;
696 size_t len = ucode_raw->size;
697 const u8 *data;
698 u32 tlv_len;
699 u32 usniffer_img;
700 enum iwl_ucode_tlv_type tlv_type;
701 const u8 *tlv_data;
702 char buildstr[25];
703 u32 build, paging_mem_size;
704 int num_of_cpus;
705 bool usniffer_req = false;
706
707 if (len < sizeof(*ucode)) {
708 IWL_ERR(drv, "uCode has invalid length: %zd\n", len);
709 return -EINVAL;
710 }
711
712 if (ucode->magic != cpu_to_le32(IWL_TLV_UCODE_MAGIC)) {
713 IWL_ERR(drv, "invalid uCode magic: 0X%x\n",
714 le32_to_cpu(ucode->magic));
715 return -EINVAL;
716 }
717
718 drv->fw.ucode_ver = le32_to_cpu(ucode->ver);
719 memcpy(drv->fw.human_readable, ucode->human_readable,
720 sizeof(drv->fw.human_readable));
721 build = le32_to_cpu(ucode->build);
722
723 if (build)
724 sprintf(buildstr, " build %u", build);
725 else
726 buildstr[0] = '\0';
727
728 snprintf(drv->fw.fw_version,
729 sizeof(drv->fw.fw_version),
730 "%u.%u.%u.%u%s %s",
731 IWL_UCODE_MAJOR(drv->fw.ucode_ver),
732 IWL_UCODE_MINOR(drv->fw.ucode_ver),
733 IWL_UCODE_API(drv->fw.ucode_ver),
734 IWL_UCODE_SERIAL(drv->fw.ucode_ver),
735 buildstr, iwl_reduced_fw_name(drv));
736
737 data = ucode->data;
738
739 len -= sizeof(*ucode);
740
741 while (len >= sizeof(*tlv)) {
742 len -= sizeof(*tlv);
743
744 tlv = (const void *)data;
745 tlv_len = le32_to_cpu(tlv->length);
746 tlv_type = le32_to_cpu(tlv->type);
747 tlv_data = tlv->data;
748
749 if (len < tlv_len) {
750 IWL_ERR(drv, "invalid TLV len: %zd/%u\n",
751 len, tlv_len);
752 return -EINVAL;
753 }
754 len -= ALIGN(tlv_len, 4);
755 data += sizeof(*tlv) + ALIGN(tlv_len, 4);
756
757 switch (tlv_type) {
758 case IWL_UCODE_TLV_INST:
759 set_sec_data(pieces, IWL_UCODE_REGULAR,
760 IWL_UCODE_SECTION_INST, tlv_data);
761 set_sec_size(pieces, IWL_UCODE_REGULAR,
762 IWL_UCODE_SECTION_INST, tlv_len);
763 set_sec_offset(pieces, IWL_UCODE_REGULAR,
764 IWL_UCODE_SECTION_INST,
765 IWLAGN_RTC_INST_LOWER_BOUND);
766 break;
767 case IWL_UCODE_TLV_DATA:
768 set_sec_data(pieces, IWL_UCODE_REGULAR,
769 IWL_UCODE_SECTION_DATA, tlv_data);
770 set_sec_size(pieces, IWL_UCODE_REGULAR,
771 IWL_UCODE_SECTION_DATA, tlv_len);
772 set_sec_offset(pieces, IWL_UCODE_REGULAR,
773 IWL_UCODE_SECTION_DATA,
774 IWLAGN_RTC_DATA_LOWER_BOUND);
775 break;
776 case IWL_UCODE_TLV_INIT:
777 set_sec_data(pieces, IWL_UCODE_INIT,
778 IWL_UCODE_SECTION_INST, tlv_data);
779 set_sec_size(pieces, IWL_UCODE_INIT,
780 IWL_UCODE_SECTION_INST, tlv_len);
781 set_sec_offset(pieces, IWL_UCODE_INIT,
782 IWL_UCODE_SECTION_INST,
783 IWLAGN_RTC_INST_LOWER_BOUND);
784 break;
785 case IWL_UCODE_TLV_INIT_DATA:
786 set_sec_data(pieces, IWL_UCODE_INIT,
787 IWL_UCODE_SECTION_DATA, tlv_data);
788 set_sec_size(pieces, IWL_UCODE_INIT,
789 IWL_UCODE_SECTION_DATA, tlv_len);
790 set_sec_offset(pieces, IWL_UCODE_INIT,
791 IWL_UCODE_SECTION_DATA,
792 IWLAGN_RTC_DATA_LOWER_BOUND);
793 break;
794 case IWL_UCODE_TLV_BOOT:
795 IWL_ERR(drv, "Found unexpected BOOT ucode\n");
796 break;
797 case IWL_UCODE_TLV_PROBE_MAX_LEN:
798 if (tlv_len != sizeof(u32))
799 goto invalid_tlv_len;
800 capa->max_probe_length =
801 le32_to_cpup((const __le32 *)tlv_data);
802 break;
803 case IWL_UCODE_TLV_PAN:
804 if (tlv_len)
805 goto invalid_tlv_len;
806 capa->flags |= IWL_UCODE_TLV_FLAGS_PAN;
807 break;
808 case IWL_UCODE_TLV_FLAGS:
809 /* must be at least one u32 */
810 if (tlv_len < sizeof(u32))
811 goto invalid_tlv_len;
812 /* and a proper number of u32s */
813 if (tlv_len % sizeof(u32))
814 goto invalid_tlv_len;
815 /*
816 * This driver only reads the first u32 as
817 * right now no more features are defined,
818 * if that changes then either the driver
819 * will not work with the new firmware, or
820 * it'll not take advantage of new features.
821 */
822 capa->flags = le32_to_cpup((const __le32 *)tlv_data);
823 break;
824 case IWL_UCODE_TLV_API_CHANGES_SET:
825 if (tlv_len != sizeof(struct iwl_ucode_api))
826 goto invalid_tlv_len;
827 iwl_set_ucode_api_flags(drv, tlv_data, capa);
828 break;
829 case IWL_UCODE_TLV_ENABLED_CAPABILITIES:
830 if (tlv_len != sizeof(struct iwl_ucode_capa))
831 goto invalid_tlv_len;
832 iwl_set_ucode_capabilities(drv, tlv_data, capa);
833 break;
834 case IWL_UCODE_TLV_INIT_EVTLOG_PTR:
835 if (tlv_len != sizeof(u32))
836 goto invalid_tlv_len;
837 pieces->init_evtlog_ptr =
838 le32_to_cpup((const __le32 *)tlv_data);
839 break;
840 case IWL_UCODE_TLV_INIT_EVTLOG_SIZE:
841 if (tlv_len != sizeof(u32))
842 goto invalid_tlv_len;
843 pieces->init_evtlog_size =
844 le32_to_cpup((const __le32 *)tlv_data);
845 break;
846 case IWL_UCODE_TLV_INIT_ERRLOG_PTR:
847 if (tlv_len != sizeof(u32))
848 goto invalid_tlv_len;
849 pieces->init_errlog_ptr =
850 le32_to_cpup((const __le32 *)tlv_data);
851 break;
852 case IWL_UCODE_TLV_RUNT_EVTLOG_PTR:
853 if (tlv_len != sizeof(u32))
854 goto invalid_tlv_len;
855 pieces->inst_evtlog_ptr =
856 le32_to_cpup((const __le32 *)tlv_data);
857 break;
858 case IWL_UCODE_TLV_RUNT_EVTLOG_SIZE:
859 if (tlv_len != sizeof(u32))
860 goto invalid_tlv_len;
861 pieces->inst_evtlog_size =
862 le32_to_cpup((const __le32 *)tlv_data);
863 break;
864 case IWL_UCODE_TLV_RUNT_ERRLOG_PTR:
865 if (tlv_len != sizeof(u32))
866 goto invalid_tlv_len;
867 pieces->inst_errlog_ptr =
868 le32_to_cpup((const __le32 *)tlv_data);
869 break;
870 case IWL_UCODE_TLV_ENHANCE_SENS_TBL:
871 if (tlv_len)
872 goto invalid_tlv_len;
873 drv->fw.enhance_sensitivity_table = true;
874 break;
875 case IWL_UCODE_TLV_WOWLAN_INST:
876 set_sec_data(pieces, IWL_UCODE_WOWLAN,
877 IWL_UCODE_SECTION_INST, tlv_data);
878 set_sec_size(pieces, IWL_UCODE_WOWLAN,
879 IWL_UCODE_SECTION_INST, tlv_len);
880 set_sec_offset(pieces, IWL_UCODE_WOWLAN,
881 IWL_UCODE_SECTION_INST,
882 IWLAGN_RTC_INST_LOWER_BOUND);
883 break;
884 case IWL_UCODE_TLV_WOWLAN_DATA:
885 set_sec_data(pieces, IWL_UCODE_WOWLAN,
886 IWL_UCODE_SECTION_DATA, tlv_data);
887 set_sec_size(pieces, IWL_UCODE_WOWLAN,
888 IWL_UCODE_SECTION_DATA, tlv_len);
889 set_sec_offset(pieces, IWL_UCODE_WOWLAN,
890 IWL_UCODE_SECTION_DATA,
891 IWLAGN_RTC_DATA_LOWER_BOUND);
892 break;
893 case IWL_UCODE_TLV_PHY_CALIBRATION_SIZE:
894 if (tlv_len != sizeof(u32))
895 goto invalid_tlv_len;
896 capa->standard_phy_calibration_size =
897 le32_to_cpup((const __le32 *)tlv_data);
898 break;
899 case IWL_UCODE_TLV_SEC_RT:
900 iwl_store_ucode_sec(pieces, tlv_data, IWL_UCODE_REGULAR,
901 tlv_len);
902 drv->fw.type = IWL_FW_MVM;
903 break;
904 case IWL_UCODE_TLV_SEC_INIT:
905 iwl_store_ucode_sec(pieces, tlv_data, IWL_UCODE_INIT,
906 tlv_len);
907 drv->fw.type = IWL_FW_MVM;
908 break;
909 case IWL_UCODE_TLV_SEC_WOWLAN:
910 iwl_store_ucode_sec(pieces, tlv_data, IWL_UCODE_WOWLAN,
911 tlv_len);
912 drv->fw.type = IWL_FW_MVM;
913 break;
914 case IWL_UCODE_TLV_DEF_CALIB:
915 if (tlv_len != sizeof(struct iwl_tlv_calib_data))
916 goto invalid_tlv_len;
917 if (iwl_set_default_calib(drv, tlv_data))
918 goto tlv_error;
919 break;
920 case IWL_UCODE_TLV_PHY_SKU:
921 if (tlv_len != sizeof(u32))
922 goto invalid_tlv_len;
923 drv->fw.phy_config = le32_to_cpup((const __le32 *)tlv_data);
924 drv->fw.valid_tx_ant = (drv->fw.phy_config &
925 FW_PHY_CFG_TX_CHAIN) >>
926 FW_PHY_CFG_TX_CHAIN_POS;
927 drv->fw.valid_rx_ant = (drv->fw.phy_config &
928 FW_PHY_CFG_RX_CHAIN) >>
929 FW_PHY_CFG_RX_CHAIN_POS;
930 break;
931 case IWL_UCODE_TLV_SECURE_SEC_RT:
932 iwl_store_ucode_sec(pieces, tlv_data, IWL_UCODE_REGULAR,
933 tlv_len);
934 drv->fw.type = IWL_FW_MVM;
935 break;
936 case IWL_UCODE_TLV_SECURE_SEC_INIT:
937 iwl_store_ucode_sec(pieces, tlv_data, IWL_UCODE_INIT,
938 tlv_len);
939 drv->fw.type = IWL_FW_MVM;
940 break;
941 case IWL_UCODE_TLV_SECURE_SEC_WOWLAN:
942 iwl_store_ucode_sec(pieces, tlv_data, IWL_UCODE_WOWLAN,
943 tlv_len);
944 drv->fw.type = IWL_FW_MVM;
945 break;
946 case IWL_UCODE_TLV_NUM_OF_CPU:
947 if (tlv_len != sizeof(u32))
948 goto invalid_tlv_len;
949 num_of_cpus =
950 le32_to_cpup((const __le32 *)tlv_data);
951
952 if (num_of_cpus == 2) {
953 drv->fw.img[IWL_UCODE_REGULAR].is_dual_cpus =
954 true;
955 drv->fw.img[IWL_UCODE_INIT].is_dual_cpus =
956 true;
957 drv->fw.img[IWL_UCODE_WOWLAN].is_dual_cpus =
958 true;
959 } else if ((num_of_cpus > 2) || (num_of_cpus < 1)) {
960 IWL_ERR(drv, "Driver support up to 2 CPUs\n");
961 return -EINVAL;
962 }
963 break;
964 case IWL_UCODE_TLV_N_SCAN_CHANNELS:
965 if (tlv_len != sizeof(u32))
966 goto invalid_tlv_len;
967 capa->n_scan_channels =
968 le32_to_cpup((const __le32 *)tlv_data);
969 break;
970 case IWL_UCODE_TLV_FW_VERSION: {
971 const __le32 *ptr = (const void *)tlv_data;
972 u32 major, minor;
973 u8 local_comp;
974
975 if (tlv_len != sizeof(u32) * 3)
976 goto invalid_tlv_len;
977
978 major = le32_to_cpup(ptr++);
979 minor = le32_to_cpup(ptr++);
980 local_comp = le32_to_cpup(ptr);
981
982 if (major >= 35)
983 snprintf(drv->fw.fw_version,
984 sizeof(drv->fw.fw_version),
985 "%u.%08x.%u %s", major, minor,
986 local_comp, iwl_reduced_fw_name(drv));
987 else
988 snprintf(drv->fw.fw_version,
989 sizeof(drv->fw.fw_version),
990 "%u.%u.%u %s", major, minor,
991 local_comp, iwl_reduced_fw_name(drv));
992 break;
993 }
994 case IWL_UCODE_TLV_FW_DBG_DEST: {
995 const struct iwl_fw_dbg_dest_tlv *dest = NULL;
996 const struct iwl_fw_dbg_dest_tlv_v1 *dest_v1 = NULL;
997 u8 mon_mode;
998
999 pieces->dbg_dest_ver = (const u8 *)tlv_data;
1000 if (*pieces->dbg_dest_ver == 1) {
1001 dest = (const void *)tlv_data;
1002 } else if (*pieces->dbg_dest_ver == 0) {
1003 dest_v1 = (const void *)tlv_data;
1004 } else {
1005 IWL_ERR(drv,
1006 "The version is %d, and it is invalid\n",
1007 *pieces->dbg_dest_ver);
1008 break;
1009 }
1010
1011 if (pieces->dbg_dest_tlv_init) {
1012 IWL_ERR(drv,
1013 "dbg destination ignored, already exists\n");
1014 break;
1015 }
1016
1017 pieces->dbg_dest_tlv_init = true;
1018
1019 if (dest_v1) {
1020 pieces->dbg_dest_tlv_v1 = dest_v1;
1021 mon_mode = dest_v1->monitor_mode;
1022 } else {
1023 pieces->dbg_dest_tlv = dest;
1024 mon_mode = dest->monitor_mode;
1025 }
1026
1027 IWL_INFO(drv, "Found debug destination: %s\n",
1028 get_fw_dbg_mode_string(mon_mode));
1029
1030 drv->fw.dbg.n_dest_reg = (dest_v1) ?
1031 tlv_len -
1032 offsetof(struct iwl_fw_dbg_dest_tlv_v1,
1033 reg_ops) :
1034 tlv_len -
1035 offsetof(struct iwl_fw_dbg_dest_tlv,
1036 reg_ops);
1037
1038 drv->fw.dbg.n_dest_reg /=
1039 sizeof(drv->fw.dbg.dest_tlv->reg_ops[0]);
1040
1041 break;
1042 }
1043 case IWL_UCODE_TLV_FW_DBG_CONF: {
1044 const struct iwl_fw_dbg_conf_tlv *conf =
1045 (const void *)tlv_data;
1046
1047 if (!pieces->dbg_dest_tlv_init) {
1048 IWL_ERR(drv,
1049 "Ignore dbg config %d - no destination configured\n",
1050 conf->id);
1051 break;
1052 }
1053
1054 if (conf->id >= ARRAY_SIZE(drv->fw.dbg.conf_tlv)) {
1055 IWL_ERR(drv,
1056 "Skip unknown configuration: %d\n",
1057 conf->id);
1058 break;
1059 }
1060
1061 if (pieces->dbg_conf_tlv[conf->id]) {
1062 IWL_ERR(drv,
1063 "Ignore duplicate dbg config %d\n",
1064 conf->id);
1065 break;
1066 }
1067
1068 if (conf->usniffer)
1069 usniffer_req = true;
1070
1071 IWL_INFO(drv, "Found debug configuration: %d\n",
1072 conf->id);
1073
1074 pieces->dbg_conf_tlv[conf->id] = conf;
1075 pieces->dbg_conf_tlv_len[conf->id] = tlv_len;
1076 break;
1077 }
1078 case IWL_UCODE_TLV_FW_DBG_TRIGGER: {
1079 const struct iwl_fw_dbg_trigger_tlv *trigger =
1080 (const void *)tlv_data;
1081 u32 trigger_id = le32_to_cpu(trigger->id);
1082
1083 if (trigger_id >= ARRAY_SIZE(drv->fw.dbg.trigger_tlv)) {
1084 IWL_ERR(drv,
1085 "Skip unknown trigger: %u\n",
1086 trigger->id);
1087 break;
1088 }
1089
1090 if (pieces->dbg_trigger_tlv[trigger_id]) {
1091 IWL_ERR(drv,
1092 "Ignore duplicate dbg trigger %u\n",
1093 trigger->id);
1094 break;
1095 }
1096
1097 IWL_INFO(drv, "Found debug trigger: %u\n", trigger->id);
1098
1099 pieces->dbg_trigger_tlv[trigger_id] = trigger;
1100 pieces->dbg_trigger_tlv_len[trigger_id] = tlv_len;
1101 break;
1102 }
1103 case IWL_UCODE_TLV_FW_DBG_DUMP_LST: {
1104 if (tlv_len != sizeof(u32)) {
1105 IWL_ERR(drv,
1106 "dbg lst mask size incorrect, skip\n");
1107 break;
1108 }
1109
1110 drv->fw.dbg.dump_mask =
1111 le32_to_cpup((const __le32 *)tlv_data);
1112 break;
1113 }
1114 case IWL_UCODE_TLV_SEC_RT_USNIFFER:
1115 *usniffer_images = true;
1116 iwl_store_ucode_sec(pieces, tlv_data,
1117 IWL_UCODE_REGULAR_USNIFFER,
1118 tlv_len);
1119 break;
1120 case IWL_UCODE_TLV_PAGING:
1121 if (tlv_len != sizeof(u32))
1122 goto invalid_tlv_len;
1123 paging_mem_size = le32_to_cpup((const __le32 *)tlv_data);
1124
1125 IWL_DEBUG_FW(drv,
1126 "Paging: paging enabled (size = %u bytes)\n",
1127 paging_mem_size);
1128
1129 if (paging_mem_size > MAX_PAGING_IMAGE_SIZE) {
1130 IWL_ERR(drv,
1131 "Paging: driver supports up to %lu bytes for paging image\n",
1132 MAX_PAGING_IMAGE_SIZE);
1133 return -EINVAL;
1134 }
1135
1136 if (paging_mem_size & (FW_PAGING_SIZE - 1)) {
1137 IWL_ERR(drv,
1138 "Paging: image isn't multiple %lu\n",
1139 FW_PAGING_SIZE);
1140 return -EINVAL;
1141 }
1142
1143 drv->fw.img[IWL_UCODE_REGULAR].paging_mem_size =
1144 paging_mem_size;
1145 usniffer_img = IWL_UCODE_REGULAR_USNIFFER;
1146 drv->fw.img[usniffer_img].paging_mem_size =
1147 paging_mem_size;
1148 break;
1149 case IWL_UCODE_TLV_FW_GSCAN_CAPA:
1150 /* ignored */
1151 break;
1152 case IWL_UCODE_TLV_FW_MEM_SEG: {
1153 const struct iwl_fw_dbg_mem_seg_tlv *dbg_mem =
1154 (const void *)tlv_data;
1155 size_t size;
1156 struct iwl_fw_dbg_mem_seg_tlv *n;
1157
1158 if (tlv_len != (sizeof(*dbg_mem)))
1159 goto invalid_tlv_len;
1160
1161 IWL_DEBUG_INFO(drv, "Found debug memory segment: %u\n",
1162 dbg_mem->data_type);
1163
1164 size = sizeof(*pieces->dbg_mem_tlv) *
1165 (pieces->n_mem_tlv + 1);
1166 n = krealloc(pieces->dbg_mem_tlv, size, GFP_KERNEL);
1167 if (!n)
1168 return -ENOMEM;
1169 pieces->dbg_mem_tlv = n;
1170 pieces->dbg_mem_tlv[pieces->n_mem_tlv] = *dbg_mem;
1171 pieces->n_mem_tlv++;
1172 break;
1173 }
1174 case IWL_UCODE_TLV_IML: {
1175 drv->fw.iml_len = tlv_len;
1176 drv->fw.iml = kmemdup(tlv_data, tlv_len, GFP_KERNEL);
1177 if (!drv->fw.iml)
1178 return -ENOMEM;
1179 break;
1180 }
1181 case IWL_UCODE_TLV_FW_RECOVERY_INFO: {
1182 const struct {
1183 __le32 buf_addr;
1184 __le32 buf_size;
1185 } *recov_info = (const void *)tlv_data;
1186
1187 if (tlv_len != sizeof(*recov_info))
1188 goto invalid_tlv_len;
1189 capa->error_log_addr =
1190 le32_to_cpu(recov_info->buf_addr);
1191 capa->error_log_size =
1192 le32_to_cpu(recov_info->buf_size);
1193 }
1194 break;
1195 case IWL_UCODE_TLV_FW_FSEQ_VERSION: {
1196 const struct {
1197 u8 version[32];
1198 u8 sha1[20];
1199 } *fseq_ver = (const void *)tlv_data;
1200
1201 if (tlv_len != sizeof(*fseq_ver))
1202 goto invalid_tlv_len;
1203 IWL_INFO(drv, "TLV_FW_FSEQ_VERSION: %s\n",
1204 fseq_ver->version);
1205 }
1206 break;
1207 case IWL_UCODE_TLV_FW_NUM_STATIONS:
1208 if (tlv_len != sizeof(u32))
1209 goto invalid_tlv_len;
1210 if (le32_to_cpup((const __le32 *)tlv_data) >
1211 IWL_MVM_STATION_COUNT_MAX) {
1212 IWL_ERR(drv,
1213 "%d is an invalid number of station\n",
1214 le32_to_cpup((const __le32 *)tlv_data));
1215 goto tlv_error;
1216 }
1217 capa->num_stations =
1218 le32_to_cpup((const __le32 *)tlv_data);
1219 break;
1220 case IWL_UCODE_TLV_FW_NUM_BEACONS:
1221 if (tlv_len != sizeof(u32))
1222 goto invalid_tlv_len;
1223 capa->num_beacons =
1224 le32_to_cpup((const __le32 *)tlv_data);
1225 break;
1226 case IWL_UCODE_TLV_UMAC_DEBUG_ADDRS: {
1227 const struct iwl_umac_debug_addrs *dbg_ptrs =
1228 (const void *)tlv_data;
1229
1230 if (tlv_len != sizeof(*dbg_ptrs))
1231 goto invalid_tlv_len;
1232 if (drv->trans->trans_cfg->device_family <
1233 IWL_DEVICE_FAMILY_22000)
1234 break;
1235 drv->trans->dbg.umac_error_event_table =
1236 le32_to_cpu(dbg_ptrs->error_info_addr) &
1237 ~FW_ADDR_CACHE_CONTROL;
1238 drv->trans->dbg.error_event_table_tlv_status |=
1239 IWL_ERROR_EVENT_TABLE_UMAC;
1240 break;
1241 }
1242 case IWL_UCODE_TLV_LMAC_DEBUG_ADDRS: {
1243 const struct iwl_lmac_debug_addrs *dbg_ptrs =
1244 (const void *)tlv_data;
1245
1246 if (tlv_len != sizeof(*dbg_ptrs))
1247 goto invalid_tlv_len;
1248 if (drv->trans->trans_cfg->device_family <
1249 IWL_DEVICE_FAMILY_22000)
1250 break;
1251 drv->trans->dbg.lmac_error_event_table[0] =
1252 le32_to_cpu(dbg_ptrs->error_event_table_ptr) &
1253 ~FW_ADDR_CACHE_CONTROL;
1254 drv->trans->dbg.error_event_table_tlv_status |=
1255 IWL_ERROR_EVENT_TABLE_LMAC1;
1256 break;
1257 }
1258 case IWL_UCODE_TLV_TYPE_REGIONS:
1259 iwl_parse_dbg_tlv_assert_tables(drv, tlv);
1260 fallthrough;
1261 case IWL_UCODE_TLV_TYPE_DEBUG_INFO:
1262 case IWL_UCODE_TLV_TYPE_BUFFER_ALLOCATION:
1263 case IWL_UCODE_TLV_TYPE_HCMD:
1264 case IWL_UCODE_TLV_TYPE_TRIGGERS:
1265 case IWL_UCODE_TLV_TYPE_CONF_SET:
1266 if (iwlwifi_mod_params.enable_ini)
1267 iwl_dbg_tlv_alloc(drv->trans, tlv, false);
1268 break;
1269 case IWL_UCODE_TLV_CMD_VERSIONS:
1270 if (tlv_len % sizeof(struct iwl_fw_cmd_version)) {
1271 IWL_ERR(drv,
1272 "Invalid length for command versions: %u\n",
1273 tlv_len);
1274 tlv_len /= sizeof(struct iwl_fw_cmd_version);
1275 tlv_len *= sizeof(struct iwl_fw_cmd_version);
1276 }
1277 if (WARN_ON(capa->cmd_versions))
1278 return -EINVAL;
1279 capa->cmd_versions = kmemdup(tlv_data, tlv_len,
1280 GFP_KERNEL);
1281 if (!capa->cmd_versions)
1282 return -ENOMEM;
1283 capa->n_cmd_versions =
1284 tlv_len / sizeof(struct iwl_fw_cmd_version);
1285 break;
1286 case IWL_UCODE_TLV_PHY_INTEGRATION_VERSION:
1287 if (drv->fw.phy_integration_ver) {
1288 IWL_ERR(drv,
1289 "phy integration str ignored, already exists\n");
1290 break;
1291 }
1292
1293 drv->fw.phy_integration_ver =
1294 kmemdup(tlv_data, tlv_len, GFP_KERNEL);
1295 if (!drv->fw.phy_integration_ver)
1296 return -ENOMEM;
1297 drv->fw.phy_integration_ver_len = tlv_len;
1298 break;
1299 case IWL_UCODE_TLV_SEC_TABLE_ADDR:
1300 case IWL_UCODE_TLV_D3_KEK_KCK_ADDR:
1301 iwl_drv_set_dump_exclude(drv, tlv_type,
1302 tlv_data, tlv_len);
1303 break;
1304 case IWL_UCODE_TLV_CURRENT_PC:
1305 if (tlv_len < sizeof(struct iwl_pc_data))
1306 goto invalid_tlv_len;
1307 drv->trans->dbg.num_pc =
1308 tlv_len / sizeof(struct iwl_pc_data);
1309 drv->trans->dbg.pc_data =
1310 kmemdup(tlv_data, tlv_len, GFP_KERNEL);
1311 break;
1312 default:
1313 IWL_DEBUG_INFO(drv, "unknown TLV: %d\n", tlv_type);
1314 break;
1315 }
1316 }
1317
1318 if (!fw_has_capa(capa, IWL_UCODE_TLV_CAPA_USNIFFER_UNIFIED) &&
1319 usniffer_req && !*usniffer_images) {
1320 IWL_ERR(drv,
1321 "user selected to work with usniffer but usniffer image isn't available in ucode package\n");
1322 return -EINVAL;
1323 }
1324
1325 if (len) {
1326 IWL_ERR(drv, "invalid TLV after parsing: %zd\n", len);
1327 iwl_print_hex_dump(drv, IWL_DL_FW, data, len);
1328 return -EINVAL;
1329 }
1330
1331 return 0;
1332
1333 invalid_tlv_len:
1334 IWL_ERR(drv, "TLV %d has invalid size: %u\n", tlv_type, tlv_len);
1335 tlv_error:
1336 iwl_print_hex_dump(drv, IWL_DL_FW, tlv_data, tlv_len);
1337
1338 return -EINVAL;
1339 }
1340
iwl_alloc_ucode(struct iwl_drv * drv,struct iwl_firmware_pieces * pieces,enum iwl_ucode_type type)1341 static int iwl_alloc_ucode(struct iwl_drv *drv,
1342 struct iwl_firmware_pieces *pieces,
1343 enum iwl_ucode_type type)
1344 {
1345 int i;
1346 struct fw_desc *sec;
1347
1348 sec = kcalloc(pieces->img[type].sec_counter, sizeof(*sec), GFP_KERNEL);
1349 if (!sec)
1350 return -ENOMEM;
1351 drv->fw.img[type].sec = sec;
1352 drv->fw.img[type].num_sec = pieces->img[type].sec_counter;
1353
1354 for (i = 0; i < pieces->img[type].sec_counter; i++)
1355 if (iwl_alloc_fw_desc(drv, &sec[i], get_sec(pieces, type, i)))
1356 return -ENOMEM;
1357
1358 return 0;
1359 }
1360
validate_sec_sizes(struct iwl_drv * drv,struct iwl_firmware_pieces * pieces,const struct iwl_cfg * cfg)1361 static int validate_sec_sizes(struct iwl_drv *drv,
1362 struct iwl_firmware_pieces *pieces,
1363 const struct iwl_cfg *cfg)
1364 {
1365 IWL_DEBUG_INFO(drv, "f/w package hdr runtime inst size = %zd\n",
1366 get_sec_size(pieces, IWL_UCODE_REGULAR,
1367 IWL_UCODE_SECTION_INST));
1368 IWL_DEBUG_INFO(drv, "f/w package hdr runtime data size = %zd\n",
1369 get_sec_size(pieces, IWL_UCODE_REGULAR,
1370 IWL_UCODE_SECTION_DATA));
1371 IWL_DEBUG_INFO(drv, "f/w package hdr init inst size = %zd\n",
1372 get_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_INST));
1373 IWL_DEBUG_INFO(drv, "f/w package hdr init data size = %zd\n",
1374 get_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_DATA));
1375
1376 /* Verify that uCode images will fit in card's SRAM. */
1377 if (get_sec_size(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_INST) >
1378 cfg->max_inst_size) {
1379 IWL_ERR(drv, "uCode instr len %zd too large to fit in\n",
1380 get_sec_size(pieces, IWL_UCODE_REGULAR,
1381 IWL_UCODE_SECTION_INST));
1382 return -1;
1383 }
1384
1385 if (get_sec_size(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_DATA) >
1386 cfg->max_data_size) {
1387 IWL_ERR(drv, "uCode data len %zd too large to fit in\n",
1388 get_sec_size(pieces, IWL_UCODE_REGULAR,
1389 IWL_UCODE_SECTION_DATA));
1390 return -1;
1391 }
1392
1393 if (get_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_INST) >
1394 cfg->max_inst_size) {
1395 IWL_ERR(drv, "uCode init instr len %zd too large to fit in\n",
1396 get_sec_size(pieces, IWL_UCODE_INIT,
1397 IWL_UCODE_SECTION_INST));
1398 return -1;
1399 }
1400
1401 if (get_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_DATA) >
1402 cfg->max_data_size) {
1403 IWL_ERR(drv, "uCode init data len %zd too large to fit in\n",
1404 get_sec_size(pieces, IWL_UCODE_REGULAR,
1405 IWL_UCODE_SECTION_DATA));
1406 return -1;
1407 }
1408 return 0;
1409 }
1410
1411 static struct iwl_op_mode *
_iwl_op_mode_start(struct iwl_drv * drv,struct iwlwifi_opmode_table * op)1412 _iwl_op_mode_start(struct iwl_drv *drv, struct iwlwifi_opmode_table *op)
1413 {
1414 const struct iwl_op_mode_ops *ops = op->ops;
1415 struct dentry *dbgfs_dir = NULL;
1416 struct iwl_op_mode *op_mode = NULL;
1417 int retry, max_retry = !!iwlwifi_mod_params.fw_restart * IWL_MAX_INIT_RETRY;
1418
1419 for (retry = 0; retry <= max_retry; retry++) {
1420
1421 #ifdef CONFIG_IWLWIFI_DEBUGFS
1422 drv->dbgfs_op_mode = debugfs_create_dir(op->name,
1423 drv->dbgfs_drv);
1424 dbgfs_dir = drv->dbgfs_op_mode;
1425 #endif
1426
1427 op_mode = ops->start(drv->trans, drv->trans->cfg,
1428 &drv->fw, dbgfs_dir);
1429
1430 if (op_mode)
1431 return op_mode;
1432
1433 IWL_ERR(drv, "retry init count %d\n", retry);
1434
1435 #ifdef CONFIG_IWLWIFI_DEBUGFS
1436 debugfs_remove_recursive(drv->dbgfs_op_mode);
1437 drv->dbgfs_op_mode = NULL;
1438 #endif
1439 }
1440
1441 return NULL;
1442 }
1443
_iwl_op_mode_stop(struct iwl_drv * drv)1444 static void _iwl_op_mode_stop(struct iwl_drv *drv)
1445 {
1446 /* op_mode can be NULL if its start failed */
1447 if (drv->op_mode) {
1448 iwl_op_mode_stop(drv->op_mode);
1449 drv->op_mode = NULL;
1450
1451 #ifdef CONFIG_IWLWIFI_DEBUGFS
1452 debugfs_remove_recursive(drv->dbgfs_op_mode);
1453 drv->dbgfs_op_mode = NULL;
1454 #endif
1455 }
1456 }
1457
1458 /*
1459 * iwl_req_fw_callback - callback when firmware was loaded
1460 *
1461 * If loaded successfully, copies the firmware into buffers
1462 * for the card to fetch (via DMA).
1463 */
iwl_req_fw_callback(const struct firmware * ucode_raw,void * context)1464 static void iwl_req_fw_callback(const struct firmware *ucode_raw, void *context)
1465 {
1466 struct iwl_drv *drv = context;
1467 struct iwl_fw *fw = &drv->fw;
1468 const struct iwl_ucode_header *ucode;
1469 struct iwlwifi_opmode_table *op;
1470 int err;
1471 struct iwl_firmware_pieces *pieces;
1472 const unsigned int api_max = drv->trans->cfg->ucode_api_max;
1473 const unsigned int api_min = drv->trans->cfg->ucode_api_min;
1474 size_t trigger_tlv_sz[FW_DBG_TRIGGER_MAX];
1475 u32 api_ver;
1476 int i;
1477 bool load_module = false;
1478 bool usniffer_images = false;
1479 bool failure = true;
1480
1481 fw->ucode_capa.max_probe_length = IWL_DEFAULT_MAX_PROBE_LENGTH;
1482 fw->ucode_capa.standard_phy_calibration_size =
1483 IWL_DEFAULT_STANDARD_PHY_CALIBRATE_TBL_SIZE;
1484 fw->ucode_capa.n_scan_channels = IWL_DEFAULT_SCAN_CHANNELS;
1485 fw->ucode_capa.num_stations = IWL_MVM_STATION_COUNT_MAX;
1486 fw->ucode_capa.num_beacons = 1;
1487 /* dump all fw memory areas by default */
1488 fw->dbg.dump_mask = 0xffffffff;
1489
1490 pieces = kzalloc(sizeof(*pieces), GFP_KERNEL);
1491 if (!pieces)
1492 goto out_free_fw;
1493
1494 if (!ucode_raw)
1495 goto try_again;
1496
1497 IWL_DEBUG_FW_INFO(drv, "Loaded firmware file '%s' (%zd bytes).\n",
1498 drv->firmware_name, ucode_raw->size);
1499
1500 /* Make sure that we got at least the API version number */
1501 if (ucode_raw->size < 4) {
1502 IWL_ERR(drv, "File size way too small!\n");
1503 goto try_again;
1504 }
1505
1506 /* Data from ucode file: header followed by uCode images */
1507 ucode = (const struct iwl_ucode_header *)ucode_raw->data;
1508
1509 if (ucode->ver)
1510 err = iwl_parse_v1_v2_firmware(drv, ucode_raw, pieces);
1511 else
1512 err = iwl_parse_tlv_firmware(drv, ucode_raw, pieces,
1513 &fw->ucode_capa, &usniffer_images);
1514
1515 if (err)
1516 goto try_again;
1517
1518 if (fw_has_api(&drv->fw.ucode_capa, IWL_UCODE_TLV_API_NEW_VERSION))
1519 api_ver = drv->fw.ucode_ver;
1520 else
1521 api_ver = IWL_UCODE_API(drv->fw.ucode_ver);
1522
1523 /*
1524 * api_ver should match the api version forming part of the
1525 * firmware filename ... but we don't check for that and only rely
1526 * on the API version read from firmware header from here on forward
1527 */
1528 if (api_ver < api_min || api_ver > api_max) {
1529 IWL_ERR(drv,
1530 "Driver unable to support your firmware API. "
1531 "Driver supports v%u, firmware is v%u.\n",
1532 api_max, api_ver);
1533 goto try_again;
1534 }
1535
1536 /*
1537 * In mvm uCode there is no difference between data and instructions
1538 * sections.
1539 */
1540 if (fw->type == IWL_FW_DVM && validate_sec_sizes(drv, pieces,
1541 drv->trans->cfg))
1542 goto try_again;
1543
1544 /* Allocate ucode buffers for card's bus-master loading ... */
1545
1546 /* Runtime instructions and 2 copies of data:
1547 * 1) unmodified from disk
1548 * 2) backup cache for save/restore during power-downs
1549 */
1550 for (i = 0; i < IWL_UCODE_TYPE_MAX; i++)
1551 if (iwl_alloc_ucode(drv, pieces, i))
1552 goto out_free_fw;
1553
1554 if (pieces->dbg_dest_tlv_init) {
1555 size_t dbg_dest_size = sizeof(*drv->fw.dbg.dest_tlv) +
1556 sizeof(drv->fw.dbg.dest_tlv->reg_ops[0]) *
1557 drv->fw.dbg.n_dest_reg;
1558
1559 drv->fw.dbg.dest_tlv = kmalloc(dbg_dest_size, GFP_KERNEL);
1560
1561 if (!drv->fw.dbg.dest_tlv)
1562 goto out_free_fw;
1563
1564 if (*pieces->dbg_dest_ver == 0) {
1565 memcpy(drv->fw.dbg.dest_tlv, pieces->dbg_dest_tlv_v1,
1566 dbg_dest_size);
1567 } else {
1568 struct iwl_fw_dbg_dest_tlv_v1 *dest_tlv =
1569 drv->fw.dbg.dest_tlv;
1570
1571 dest_tlv->version = pieces->dbg_dest_tlv->version;
1572 dest_tlv->monitor_mode =
1573 pieces->dbg_dest_tlv->monitor_mode;
1574 dest_tlv->size_power =
1575 pieces->dbg_dest_tlv->size_power;
1576 dest_tlv->wrap_count =
1577 pieces->dbg_dest_tlv->wrap_count;
1578 dest_tlv->write_ptr_reg =
1579 pieces->dbg_dest_tlv->write_ptr_reg;
1580 dest_tlv->base_shift =
1581 pieces->dbg_dest_tlv->base_shift;
1582 memcpy(dest_tlv->reg_ops,
1583 pieces->dbg_dest_tlv->reg_ops,
1584 sizeof(drv->fw.dbg.dest_tlv->reg_ops[0]) *
1585 drv->fw.dbg.n_dest_reg);
1586
1587 /* In version 1 of the destination tlv, which is
1588 * relevant for internal buffer exclusively,
1589 * the base address is part of given with the length
1590 * of the buffer, and the size shift is give instead of
1591 * end shift. We now store these values in base_reg,
1592 * and end shift, and when dumping the data we'll
1593 * manipulate it for extracting both the length and
1594 * base address */
1595 dest_tlv->base_reg = pieces->dbg_dest_tlv->cfg_reg;
1596 dest_tlv->end_shift =
1597 pieces->dbg_dest_tlv->size_shift;
1598 }
1599 }
1600
1601 for (i = 0; i < ARRAY_SIZE(drv->fw.dbg.conf_tlv); i++) {
1602 if (pieces->dbg_conf_tlv[i]) {
1603 drv->fw.dbg.conf_tlv[i] =
1604 kmemdup(pieces->dbg_conf_tlv[i],
1605 pieces->dbg_conf_tlv_len[i],
1606 GFP_KERNEL);
1607 if (!drv->fw.dbg.conf_tlv[i])
1608 goto out_free_fw;
1609 }
1610 }
1611
1612 memset(&trigger_tlv_sz, 0xff, sizeof(trigger_tlv_sz));
1613
1614 trigger_tlv_sz[FW_DBG_TRIGGER_MISSED_BEACONS] =
1615 sizeof(struct iwl_fw_dbg_trigger_missed_bcon);
1616 trigger_tlv_sz[FW_DBG_TRIGGER_CHANNEL_SWITCH] = 0;
1617 trigger_tlv_sz[FW_DBG_TRIGGER_FW_NOTIF] =
1618 sizeof(struct iwl_fw_dbg_trigger_cmd);
1619 trigger_tlv_sz[FW_DBG_TRIGGER_MLME] =
1620 sizeof(struct iwl_fw_dbg_trigger_mlme);
1621 trigger_tlv_sz[FW_DBG_TRIGGER_STATS] =
1622 sizeof(struct iwl_fw_dbg_trigger_stats);
1623 trigger_tlv_sz[FW_DBG_TRIGGER_RSSI] =
1624 sizeof(struct iwl_fw_dbg_trigger_low_rssi);
1625 trigger_tlv_sz[FW_DBG_TRIGGER_TXQ_TIMERS] =
1626 sizeof(struct iwl_fw_dbg_trigger_txq_timer);
1627 trigger_tlv_sz[FW_DBG_TRIGGER_TIME_EVENT] =
1628 sizeof(struct iwl_fw_dbg_trigger_time_event);
1629 trigger_tlv_sz[FW_DBG_TRIGGER_BA] =
1630 sizeof(struct iwl_fw_dbg_trigger_ba);
1631 trigger_tlv_sz[FW_DBG_TRIGGER_TDLS] =
1632 sizeof(struct iwl_fw_dbg_trigger_tdls);
1633
1634 for (i = 0; i < ARRAY_SIZE(drv->fw.dbg.trigger_tlv); i++) {
1635 if (pieces->dbg_trigger_tlv[i]) {
1636 /*
1637 * If the trigger isn't long enough, WARN and exit.
1638 * Someone is trying to debug something and he won't
1639 * be able to catch the bug he is trying to chase.
1640 * We'd better be noisy to be sure he knows what's
1641 * going on.
1642 */
1643 if (WARN_ON(pieces->dbg_trigger_tlv_len[i] <
1644 (trigger_tlv_sz[i] +
1645 sizeof(struct iwl_fw_dbg_trigger_tlv))))
1646 goto out_free_fw;
1647 drv->fw.dbg.trigger_tlv_len[i] =
1648 pieces->dbg_trigger_tlv_len[i];
1649 drv->fw.dbg.trigger_tlv[i] =
1650 kmemdup(pieces->dbg_trigger_tlv[i],
1651 drv->fw.dbg.trigger_tlv_len[i],
1652 GFP_KERNEL);
1653 if (!drv->fw.dbg.trigger_tlv[i])
1654 goto out_free_fw;
1655 }
1656 }
1657
1658 /* Now that we can no longer fail, copy information */
1659
1660 drv->fw.dbg.mem_tlv = pieces->dbg_mem_tlv;
1661 pieces->dbg_mem_tlv = NULL;
1662 drv->fw.dbg.n_mem_tlv = pieces->n_mem_tlv;
1663
1664 /*
1665 * The (size - 16) / 12 formula is based on the information recorded
1666 * for each event, which is of mode 1 (including timestamp) for all
1667 * new microcodes that include this information.
1668 */
1669 fw->init_evtlog_ptr = pieces->init_evtlog_ptr;
1670 if (pieces->init_evtlog_size)
1671 fw->init_evtlog_size = (pieces->init_evtlog_size - 16)/12;
1672 else
1673 fw->init_evtlog_size =
1674 drv->trans->trans_cfg->base_params->max_event_log_size;
1675 fw->init_errlog_ptr = pieces->init_errlog_ptr;
1676 fw->inst_evtlog_ptr = pieces->inst_evtlog_ptr;
1677 if (pieces->inst_evtlog_size)
1678 fw->inst_evtlog_size = (pieces->inst_evtlog_size - 16)/12;
1679 else
1680 fw->inst_evtlog_size =
1681 drv->trans->trans_cfg->base_params->max_event_log_size;
1682 fw->inst_errlog_ptr = pieces->inst_errlog_ptr;
1683
1684 /*
1685 * figure out the offset of chain noise reset and gain commands
1686 * base on the size of standard phy calibration commands table size
1687 */
1688 if (fw->ucode_capa.standard_phy_calibration_size >
1689 IWL_MAX_PHY_CALIBRATE_TBL_SIZE)
1690 fw->ucode_capa.standard_phy_calibration_size =
1691 IWL_MAX_STANDARD_PHY_CALIBRATE_TBL_SIZE;
1692
1693 /* We have our copies now, allow OS release its copies */
1694 release_firmware(ucode_raw);
1695
1696 iwl_dbg_tlv_load_bin(drv->trans->dev, drv->trans);
1697
1698 mutex_lock(&iwlwifi_opmode_table_mtx);
1699 switch (fw->type) {
1700 case IWL_FW_DVM:
1701 op = &iwlwifi_opmode_table[DVM_OP_MODE];
1702 break;
1703 default:
1704 WARN(1, "Invalid fw type %d\n", fw->type);
1705 fallthrough;
1706 case IWL_FW_MVM:
1707 op = &iwlwifi_opmode_table[MVM_OP_MODE];
1708 break;
1709 }
1710
1711 IWL_INFO(drv, "loaded firmware version %s op_mode %s\n",
1712 drv->fw.fw_version, op->name);
1713
1714 /* add this device to the list of devices using this op_mode */
1715 list_add_tail(&drv->list, &op->drv);
1716
1717 if (op->ops) {
1718 drv->op_mode = _iwl_op_mode_start(drv, op);
1719
1720 if (!drv->op_mode) {
1721 mutex_unlock(&iwlwifi_opmode_table_mtx);
1722 goto out_unbind;
1723 }
1724 } else {
1725 load_module = true;
1726 }
1727 mutex_unlock(&iwlwifi_opmode_table_mtx);
1728
1729 /*
1730 * Complete the firmware request last so that
1731 * a driver unbind (stop) doesn't run while we
1732 * are doing the start() above.
1733 */
1734 complete(&drv->request_firmware_complete);
1735
1736 /*
1737 * Load the module last so we don't block anything
1738 * else from proceeding if the module fails to load
1739 * or hangs loading.
1740 */
1741 if (load_module)
1742 request_module("%s", op->name);
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 _iwl_op_mode_stop(drv);
1839
1840 iwl_dealloc_ucode(drv);
1841
1842 mutex_lock(&iwlwifi_opmode_table_mtx);
1843 /*
1844 * List is empty (this item wasn't added)
1845 * when firmware loading failed -- in that
1846 * case we can't remove it from any list.
1847 */
1848 if (!list_empty(&drv->list))
1849 list_del(&drv->list);
1850 mutex_unlock(&iwlwifi_opmode_table_mtx);
1851
1852 #ifdef CONFIG_IWLWIFI_DEBUGFS
1853 drv->trans->ops->debugfs_cleanup(drv->trans);
1854
1855 debugfs_remove_recursive(drv->dbgfs_drv);
1856 #endif
1857
1858 iwl_dbg_tlv_free(drv->trans);
1859
1860 kfree(drv);
1861 }
1862
1863 /* shared module parameters */
1864 struct iwl_mod_params iwlwifi_mod_params = {
1865 .fw_restart = true,
1866 .bt_coex_active = true,
1867 .power_level = IWL_POWER_INDEX_1,
1868 .uapsd_disable = IWL_DISABLE_UAPSD_BSS | IWL_DISABLE_UAPSD_P2P_CLIENT,
1869 .enable_ini = ENABLE_INI,
1870 /* the rest are 0 by default */
1871 };
1872 IWL_EXPORT_SYMBOL(iwlwifi_mod_params);
1873
iwl_opmode_register(const char * name,const struct iwl_op_mode_ops * ops)1874 int iwl_opmode_register(const char *name, const struct iwl_op_mode_ops *ops)
1875 {
1876 int i;
1877 struct iwl_drv *drv;
1878 struct iwlwifi_opmode_table *op;
1879
1880 mutex_lock(&iwlwifi_opmode_table_mtx);
1881 for (i = 0; i < ARRAY_SIZE(iwlwifi_opmode_table); i++) {
1882 op = &iwlwifi_opmode_table[i];
1883 if (strcmp(op->name, name))
1884 continue;
1885 op->ops = ops;
1886 /* TODO: need to handle exceptional case */
1887 list_for_each_entry(drv, &op->drv, list)
1888 drv->op_mode = _iwl_op_mode_start(drv, op);
1889
1890 mutex_unlock(&iwlwifi_opmode_table_mtx);
1891 return 0;
1892 }
1893 mutex_unlock(&iwlwifi_opmode_table_mtx);
1894 return -EIO;
1895 }
1896 IWL_EXPORT_SYMBOL(iwl_opmode_register);
1897
iwl_opmode_deregister(const char * name)1898 void iwl_opmode_deregister(const char *name)
1899 {
1900 int i;
1901 struct iwl_drv *drv;
1902
1903 mutex_lock(&iwlwifi_opmode_table_mtx);
1904 for (i = 0; i < ARRAY_SIZE(iwlwifi_opmode_table); i++) {
1905 if (strcmp(iwlwifi_opmode_table[i].name, name))
1906 continue;
1907 iwlwifi_opmode_table[i].ops = NULL;
1908
1909 /* call the stop routine for all devices */
1910 list_for_each_entry(drv, &iwlwifi_opmode_table[i].drv, list)
1911 _iwl_op_mode_stop(drv);
1912
1913 mutex_unlock(&iwlwifi_opmode_table_mtx);
1914 return;
1915 }
1916 mutex_unlock(&iwlwifi_opmode_table_mtx);
1917 }
1918 IWL_EXPORT_SYMBOL(iwl_opmode_deregister);
1919
iwl_drv_init(void)1920 static int __init iwl_drv_init(void)
1921 {
1922 int i, err;
1923
1924 for (i = 0; i < ARRAY_SIZE(iwlwifi_opmode_table); i++)
1925 INIT_LIST_HEAD(&iwlwifi_opmode_table[i].drv);
1926
1927 pr_info(DRV_DESCRIPTION "\n");
1928
1929 #ifdef CONFIG_IWLWIFI_DEBUGFS
1930 /* Create the root of iwlwifi debugfs subsystem. */
1931 iwl_dbgfs_root = debugfs_create_dir(DRV_NAME, NULL);
1932 #endif
1933
1934 err = iwl_pci_register_driver();
1935 if (err)
1936 goto cleanup_debugfs;
1937
1938 return 0;
1939
1940 cleanup_debugfs:
1941 #ifdef CONFIG_IWLWIFI_DEBUGFS
1942 debugfs_remove_recursive(iwl_dbgfs_root);
1943 #endif
1944 return err;
1945 }
1946 module_init(iwl_drv_init);
1947
iwl_drv_exit(void)1948 static void __exit iwl_drv_exit(void)
1949 {
1950 iwl_pci_unregister_driver();
1951
1952 #ifdef CONFIG_IWLWIFI_DEBUGFS
1953 debugfs_remove_recursive(iwl_dbgfs_root);
1954 #endif
1955 }
1956 module_exit(iwl_drv_exit);
1957
1958 #ifdef CONFIG_IWLWIFI_DEBUG
1959 module_param_named(debug, iwlwifi_mod_params.debug_level, uint, 0644);
1960 MODULE_PARM_DESC(debug, "debug output mask");
1961 #endif
1962
1963 module_param_named(swcrypto, iwlwifi_mod_params.swcrypto, int, 0444);
1964 MODULE_PARM_DESC(swcrypto, "using crypto in software (default 0 [hardware])");
1965 module_param_named(11n_disable, iwlwifi_mod_params.disable_11n, uint, 0444);
1966 MODULE_PARM_DESC(11n_disable,
1967 "disable 11n functionality, bitmap: 1: full, 2: disable agg TX, 4: disable agg RX, 8 enable agg TX");
1968 module_param_named(amsdu_size, iwlwifi_mod_params.amsdu_size, int, 0444);
1969 MODULE_PARM_DESC(amsdu_size,
1970 "amsdu size 0: 12K for multi Rx queue devices, 2K for AX210 devices, "
1971 "4K for other devices 1:4K 2:8K 3:12K (16K buffers) 4: 2K (default 0)");
1972 module_param_named(fw_restart, iwlwifi_mod_params.fw_restart, bool, 0444);
1973 MODULE_PARM_DESC(fw_restart, "restart firmware in case of error (default true)");
1974
1975 module_param_named(nvm_file, iwlwifi_mod_params.nvm_file, charp, 0444);
1976 MODULE_PARM_DESC(nvm_file, "NVM file name");
1977
1978 module_param_named(uapsd_disable, iwlwifi_mod_params.uapsd_disable, uint, 0644);
1979 MODULE_PARM_DESC(uapsd_disable,
1980 "disable U-APSD functionality bitmap 1: BSS 2: P2P Client (default: 3)");
1981
1982 module_param_named(enable_ini, iwlwifi_mod_params.enable_ini, uint, 0444);
1983 MODULE_PARM_DESC(enable_ini,
1984 "0:disable, 1-15:FW_DBG_PRESET Values, 16:enabled without preset value defined,"
1985 "Debug INI TLV FW debug infrastructure (default: 16)");
1986
1987 /*
1988 * set bt_coex_active to true, uCode will do kill/defer
1989 * every time the priority line is asserted (BT is sending signals on the
1990 * priority line in the PCIx).
1991 * set bt_coex_active to false, uCode will ignore the BT activity and
1992 * perform the normal operation
1993 *
1994 * User might experience transmit issue on some platform due to WiFi/BT
1995 * co-exist problem. The possible behaviors are:
1996 * Able to scan and finding all the available AP
1997 * Not able to associate with any AP
1998 * On those platforms, WiFi communication can be restored by set
1999 * "bt_coex_active" module parameter to "false"
2000 *
2001 * default: bt_coex_active = true (BT_COEX_ENABLE)
2002 */
2003 module_param_named(bt_coex_active, iwlwifi_mod_params.bt_coex_active,
2004 bool, 0444);
2005 MODULE_PARM_DESC(bt_coex_active, "enable wifi/bt co-exist (default: enable)");
2006
2007 module_param_named(led_mode, iwlwifi_mod_params.led_mode, int, 0444);
2008 MODULE_PARM_DESC(led_mode, "0=system default, "
2009 "1=On(RF On)/Off(RF Off), 2=blinking, 3=Off (default: 0)");
2010
2011 module_param_named(power_save, iwlwifi_mod_params.power_save, bool, 0444);
2012 MODULE_PARM_DESC(power_save,
2013 "enable WiFi power management (default: disable)");
2014
2015 module_param_named(power_level, iwlwifi_mod_params.power_level, int, 0444);
2016 MODULE_PARM_DESC(power_level,
2017 "default power save level (range from 1 - 5, default: 1)");
2018
2019 module_param_named(disable_11ac, iwlwifi_mod_params.disable_11ac, bool, 0444);
2020 MODULE_PARM_DESC(disable_11ac, "Disable VHT capabilities (default: false)");
2021
2022 module_param_named(remove_when_gone,
2023 iwlwifi_mod_params.remove_when_gone, bool,
2024 0444);
2025 MODULE_PARM_DESC(remove_when_gone,
2026 "Remove dev from PCIe bus if it is deemed inaccessible (default: false)");
2027
2028 module_param_named(disable_11ax, iwlwifi_mod_params.disable_11ax, bool,
2029 S_IRUGO);
2030 MODULE_PARM_DESC(disable_11ax, "Disable HE capabilities (default: false)");
2031
2032 module_param_named(disable_11be, iwlwifi_mod_params.disable_11be, bool, 0444);
2033 MODULE_PARM_DESC(disable_11be, "Disable EHT capabilities (default: false)");
2034