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
132 for (i = 0; i < IWL_UCODE_TYPE_MAX; i++)
133 iwl_free_fw_img(drv, drv->fw.img + i);
134
135 /* clear the data for the aborted load case */
136 memset(&drv->fw, 0, sizeof(drv->fw));
137 }
138
iwl_alloc_fw_desc(struct iwl_drv * drv,struct fw_desc * desc,struct fw_sec * sec)139 static int iwl_alloc_fw_desc(struct iwl_drv *drv, struct fw_desc *desc,
140 struct fw_sec *sec)
141 {
142 void *data;
143
144 desc->data = NULL;
145
146 if (!sec || !sec->size)
147 return -EINVAL;
148
149 data = vmalloc(sec->size);
150 if (!data)
151 return -ENOMEM;
152
153 desc->len = sec->size;
154 desc->offset = sec->offset;
155 memcpy(data, sec->data, desc->len);
156 desc->data = data;
157
158 return 0;
159 }
160
iwl_drv_get_step(int step)161 static inline char iwl_drv_get_step(int step)
162 {
163 if (step == SILICON_Z_STEP)
164 return 'z';
165 return 'a' + step;
166 }
167
iwl_drv_get_fwname_pre(struct iwl_trans * trans,char * buf)168 const char *iwl_drv_get_fwname_pre(struct iwl_trans *trans, char *buf)
169 {
170 char mac_step, rf_step;
171 const char *rf, *cdb;
172
173 if (trans->cfg->fw_name_pre)
174 return trans->cfg->fw_name_pre;
175
176 if (WARN_ON(!trans->cfg->fw_name_mac))
177 return "unconfigured";
178
179 mac_step = iwl_drv_get_step(trans->hw_rev_step);
180
181 switch (CSR_HW_RFID_TYPE(trans->hw_rf_id)) {
182 case IWL_CFG_RF_TYPE_HR1:
183 case IWL_CFG_RF_TYPE_HR2:
184 rf = "hr";
185 break;
186 case IWL_CFG_RF_TYPE_GF:
187 rf = "gf";
188 break;
189 case IWL_CFG_RF_TYPE_MR:
190 rf = "mr";
191 break;
192 case IWL_CFG_RF_TYPE_MS:
193 rf = "ms";
194 break;
195 case IWL_CFG_RF_TYPE_FM:
196 rf = "fm";
197 break;
198 case IWL_CFG_RF_TYPE_WH:
199 rf = "wh";
200 break;
201 default:
202 return "unknown-rf";
203 }
204
205 cdb = CSR_HW_RFID_IS_CDB(trans->hw_rf_id) ? "4" : "";
206
207 rf_step = iwl_drv_get_step(CSR_HW_RFID_STEP(trans->hw_rf_id));
208
209 scnprintf(buf, FW_NAME_PRE_BUFSIZE,
210 "iwlwifi-%s-%c0-%s%s-%c0",
211 trans->cfg->fw_name_mac, mac_step,
212 rf, cdb, rf_step);
213
214 return buf;
215 }
216 IWL_EXPORT_SYMBOL(iwl_drv_get_fwname_pre);
217
218 static void iwl_req_fw_callback(const struct firmware *ucode_raw,
219 void *context);
220
iwl_request_firmware(struct iwl_drv * drv,bool first)221 static int iwl_request_firmware(struct iwl_drv *drv, bool first)
222 {
223 const struct iwl_cfg *cfg = drv->trans->cfg;
224 char _fw_name_pre[FW_NAME_PRE_BUFSIZE];
225 const char *fw_name_pre;
226
227 if (drv->trans->trans_cfg->device_family == IWL_DEVICE_FAMILY_9000 &&
228 (drv->trans->hw_rev_step != SILICON_B_STEP &&
229 drv->trans->hw_rev_step != SILICON_C_STEP)) {
230 IWL_ERR(drv,
231 "Only HW steps B and C are currently supported (0x%0x)\n",
232 drv->trans->hw_rev);
233 return -EINVAL;
234 }
235
236 fw_name_pre = iwl_drv_get_fwname_pre(drv->trans, _fw_name_pre);
237
238 if (first)
239 drv->fw_index = cfg->ucode_api_max;
240 else
241 drv->fw_index--;
242
243 if (drv->fw_index < cfg->ucode_api_min) {
244 IWL_ERR(drv, "no suitable firmware found!\n");
245
246 if (cfg->ucode_api_min == cfg->ucode_api_max) {
247 IWL_ERR(drv, "%s-%d is required\n", fw_name_pre,
248 cfg->ucode_api_max);
249 } else {
250 IWL_ERR(drv, "minimum version required: %s-%d\n",
251 fw_name_pre, cfg->ucode_api_min);
252 IWL_ERR(drv, "maximum version supported: %s-%d\n",
253 fw_name_pre, cfg->ucode_api_max);
254 }
255
256 IWL_ERR(drv,
257 "check git://git.kernel.org/pub/scm/linux/kernel/git/firmware/linux-firmware.git\n");
258 return -ENOENT;
259 }
260
261 snprintf(drv->firmware_name, sizeof(drv->firmware_name), "%s-%d.ucode",
262 fw_name_pre, drv->fw_index);
263
264 IWL_DEBUG_FW_INFO(drv, "attempting to load firmware '%s'\n",
265 drv->firmware_name);
266
267 return request_firmware_nowait(THIS_MODULE, 1, drv->firmware_name,
268 drv->trans->dev,
269 GFP_KERNEL, drv, iwl_req_fw_callback);
270 }
271
272 struct fw_img_parsing {
273 struct fw_sec *sec;
274 int sec_counter;
275 };
276
277 /*
278 * struct fw_sec_parsing: to extract fw section and it's offset from tlv
279 */
280 struct fw_sec_parsing {
281 __le32 offset;
282 const u8 data[];
283 } __packed;
284
285 /**
286 * struct iwl_tlv_calib_data - parse the default calib data from TLV
287 *
288 * @ucode_type: the uCode to which the following default calib relates.
289 * @calib: default calibrations.
290 */
291 struct iwl_tlv_calib_data {
292 __le32 ucode_type;
293 struct iwl_tlv_calib_ctrl calib;
294 } __packed;
295
296 struct iwl_firmware_pieces {
297 struct fw_img_parsing img[IWL_UCODE_TYPE_MAX];
298
299 u32 init_evtlog_ptr, init_evtlog_size, init_errlog_ptr;
300 u32 inst_evtlog_ptr, inst_evtlog_size, inst_errlog_ptr;
301
302 /* FW debug data parsed for driver usage */
303 bool dbg_dest_tlv_init;
304 const u8 *dbg_dest_ver;
305 union {
306 const struct iwl_fw_dbg_dest_tlv *dbg_dest_tlv;
307 const struct iwl_fw_dbg_dest_tlv_v1 *dbg_dest_tlv_v1;
308 };
309 const struct iwl_fw_dbg_conf_tlv *dbg_conf_tlv[FW_DBG_CONF_MAX];
310 size_t dbg_conf_tlv_len[FW_DBG_CONF_MAX];
311 const struct iwl_fw_dbg_trigger_tlv *dbg_trigger_tlv[FW_DBG_TRIGGER_MAX];
312 size_t dbg_trigger_tlv_len[FW_DBG_TRIGGER_MAX];
313 struct iwl_fw_dbg_mem_seg_tlv *dbg_mem_tlv;
314 size_t n_mem_tlv;
315 };
316
317 /*
318 * These functions are just to extract uCode section data from the pieces
319 * structure.
320 */
get_sec(struct iwl_firmware_pieces * pieces,enum iwl_ucode_type type,int sec)321 static struct fw_sec *get_sec(struct iwl_firmware_pieces *pieces,
322 enum iwl_ucode_type type,
323 int sec)
324 {
325 return &pieces->img[type].sec[sec];
326 }
327
alloc_sec_data(struct iwl_firmware_pieces * pieces,enum iwl_ucode_type type,int sec)328 static void alloc_sec_data(struct iwl_firmware_pieces *pieces,
329 enum iwl_ucode_type type,
330 int sec)
331 {
332 struct fw_img_parsing *img = &pieces->img[type];
333 struct fw_sec *sec_memory;
334 int size = sec + 1;
335 size_t alloc_size = sizeof(*img->sec) * size;
336
337 if (img->sec && img->sec_counter >= size)
338 return;
339
340 sec_memory = krealloc(img->sec, alloc_size, GFP_KERNEL);
341 if (!sec_memory)
342 return;
343
344 img->sec = sec_memory;
345 img->sec_counter = size;
346 }
347
set_sec_data(struct iwl_firmware_pieces * pieces,enum iwl_ucode_type type,int sec,const void * data)348 static void set_sec_data(struct iwl_firmware_pieces *pieces,
349 enum iwl_ucode_type type,
350 int sec,
351 const void *data)
352 {
353 alloc_sec_data(pieces, type, sec);
354
355 pieces->img[type].sec[sec].data = data;
356 }
357
set_sec_size(struct iwl_firmware_pieces * pieces,enum iwl_ucode_type type,int sec,size_t size)358 static void set_sec_size(struct iwl_firmware_pieces *pieces,
359 enum iwl_ucode_type type,
360 int sec,
361 size_t size)
362 {
363 alloc_sec_data(pieces, type, sec);
364
365 pieces->img[type].sec[sec].size = size;
366 }
367
get_sec_size(struct iwl_firmware_pieces * pieces,enum iwl_ucode_type type,int sec)368 static size_t get_sec_size(struct iwl_firmware_pieces *pieces,
369 enum iwl_ucode_type type,
370 int sec)
371 {
372 return pieces->img[type].sec[sec].size;
373 }
374
set_sec_offset(struct iwl_firmware_pieces * pieces,enum iwl_ucode_type type,int sec,u32 offset)375 static void set_sec_offset(struct iwl_firmware_pieces *pieces,
376 enum iwl_ucode_type type,
377 int sec,
378 u32 offset)
379 {
380 alloc_sec_data(pieces, type, sec);
381
382 pieces->img[type].sec[sec].offset = offset;
383 }
384
385 /*
386 * Gets uCode section from tlv.
387 */
iwl_store_ucode_sec(struct iwl_firmware_pieces * pieces,const void * data,enum iwl_ucode_type type,int size)388 static int iwl_store_ucode_sec(struct iwl_firmware_pieces *pieces,
389 const void *data, enum iwl_ucode_type type,
390 int size)
391 {
392 struct fw_img_parsing *img;
393 struct fw_sec *sec;
394 const struct fw_sec_parsing *sec_parse;
395 size_t alloc_size;
396
397 if (WARN_ON(!pieces || !data || type >= IWL_UCODE_TYPE_MAX))
398 return -1;
399
400 sec_parse = (const struct fw_sec_parsing *)data;
401
402 img = &pieces->img[type];
403
404 alloc_size = sizeof(*img->sec) * (img->sec_counter + 1);
405 sec = krealloc(img->sec, alloc_size, GFP_KERNEL);
406 if (!sec)
407 return -ENOMEM;
408 img->sec = sec;
409
410 sec = &img->sec[img->sec_counter];
411
412 sec->offset = le32_to_cpu(sec_parse->offset);
413 sec->data = sec_parse->data;
414 sec->size = size - sizeof(sec_parse->offset);
415
416 ++img->sec_counter;
417
418 return 0;
419 }
420
iwl_set_default_calib(struct iwl_drv * drv,const u8 * data)421 static int iwl_set_default_calib(struct iwl_drv *drv, const u8 *data)
422 {
423 const struct iwl_tlv_calib_data *def_calib =
424 (const struct iwl_tlv_calib_data *)data;
425 u32 ucode_type = le32_to_cpu(def_calib->ucode_type);
426 if (ucode_type >= IWL_UCODE_TYPE_MAX) {
427 IWL_ERR(drv, "Wrong ucode_type %u for default calibration.\n",
428 ucode_type);
429 return -EINVAL;
430 }
431 drv->fw.default_calib[ucode_type].flow_trigger =
432 def_calib->calib.flow_trigger;
433 drv->fw.default_calib[ucode_type].event_trigger =
434 def_calib->calib.event_trigger;
435
436 return 0;
437 }
438
iwl_set_ucode_api_flags(struct iwl_drv * drv,const u8 * data,struct iwl_ucode_capabilities * capa)439 static void iwl_set_ucode_api_flags(struct iwl_drv *drv, const u8 *data,
440 struct iwl_ucode_capabilities *capa)
441 {
442 const struct iwl_ucode_api *ucode_api = (const void *)data;
443 u32 api_index = le32_to_cpu(ucode_api->api_index);
444 u32 api_flags = le32_to_cpu(ucode_api->api_flags);
445 int i;
446
447 if (api_index >= DIV_ROUND_UP(NUM_IWL_UCODE_TLV_API, 32)) {
448 IWL_WARN(drv,
449 "api flags index %d larger than supported by driver\n",
450 api_index);
451 return;
452 }
453
454 for (i = 0; i < 32; i++) {
455 if (api_flags & BIT(i))
456 __set_bit(i + 32 * api_index, capa->_api);
457 }
458 }
459
iwl_set_ucode_capabilities(struct iwl_drv * drv,const u8 * data,struct iwl_ucode_capabilities * capa)460 static void iwl_set_ucode_capabilities(struct iwl_drv *drv, const u8 *data,
461 struct iwl_ucode_capabilities *capa)
462 {
463 const struct iwl_ucode_capa *ucode_capa = (const void *)data;
464 u32 api_index = le32_to_cpu(ucode_capa->api_index);
465 u32 api_flags = le32_to_cpu(ucode_capa->api_capa);
466 int i;
467
468 if (api_index >= DIV_ROUND_UP(NUM_IWL_UCODE_TLV_CAPA, 32)) {
469 IWL_WARN(drv,
470 "capa flags index %d larger than supported by driver\n",
471 api_index);
472 return;
473 }
474
475 for (i = 0; i < 32; i++) {
476 if (api_flags & BIT(i))
477 __set_bit(i + 32 * api_index, capa->_capa);
478 }
479 }
480
iwl_reduced_fw_name(struct iwl_drv * drv)481 static const char *iwl_reduced_fw_name(struct iwl_drv *drv)
482 {
483 const char *name = drv->firmware_name;
484
485 if (strncmp(name, "iwlwifi-", 8) == 0)
486 name += 8;
487
488 return name;
489 }
490
iwl_parse_v1_v2_firmware(struct iwl_drv * drv,const struct firmware * ucode_raw,struct iwl_firmware_pieces * pieces)491 static int iwl_parse_v1_v2_firmware(struct iwl_drv *drv,
492 const struct firmware *ucode_raw,
493 struct iwl_firmware_pieces *pieces)
494 {
495 const struct iwl_ucode_header *ucode = (const void *)ucode_raw->data;
496 u32 api_ver, hdr_size, build;
497 char buildstr[25];
498 const u8 *src;
499
500 drv->fw.ucode_ver = le32_to_cpu(ucode->ver);
501 api_ver = IWL_UCODE_API(drv->fw.ucode_ver);
502
503 switch (api_ver) {
504 default:
505 hdr_size = 28;
506 if (ucode_raw->size < hdr_size) {
507 IWL_ERR(drv, "File size too small!\n");
508 return -EINVAL;
509 }
510 build = le32_to_cpu(ucode->u.v2.build);
511 set_sec_size(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_INST,
512 le32_to_cpu(ucode->u.v2.inst_size));
513 set_sec_size(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_DATA,
514 le32_to_cpu(ucode->u.v2.data_size));
515 set_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_INST,
516 le32_to_cpu(ucode->u.v2.init_size));
517 set_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_DATA,
518 le32_to_cpu(ucode->u.v2.init_data_size));
519 src = ucode->u.v2.data;
520 break;
521 case 0:
522 case 1:
523 case 2:
524 hdr_size = 24;
525 if (ucode_raw->size < hdr_size) {
526 IWL_ERR(drv, "File size too small!\n");
527 return -EINVAL;
528 }
529 build = 0;
530 set_sec_size(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_INST,
531 le32_to_cpu(ucode->u.v1.inst_size));
532 set_sec_size(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_DATA,
533 le32_to_cpu(ucode->u.v1.data_size));
534 set_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_INST,
535 le32_to_cpu(ucode->u.v1.init_size));
536 set_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_DATA,
537 le32_to_cpu(ucode->u.v1.init_data_size));
538 src = ucode->u.v1.data;
539 break;
540 }
541
542 if (build)
543 sprintf(buildstr, " build %u", build);
544 else
545 buildstr[0] = '\0';
546
547 snprintf(drv->fw.fw_version,
548 sizeof(drv->fw.fw_version),
549 "%u.%u.%u.%u%s %s",
550 IWL_UCODE_MAJOR(drv->fw.ucode_ver),
551 IWL_UCODE_MINOR(drv->fw.ucode_ver),
552 IWL_UCODE_API(drv->fw.ucode_ver),
553 IWL_UCODE_SERIAL(drv->fw.ucode_ver),
554 buildstr, iwl_reduced_fw_name(drv));
555
556 /* Verify size of file vs. image size info in file's header */
557
558 if (ucode_raw->size != hdr_size +
559 get_sec_size(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_INST) +
560 get_sec_size(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_DATA) +
561 get_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_INST) +
562 get_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_DATA)) {
563
564 IWL_ERR(drv,
565 "uCode file size %d does not match expected size\n",
566 (int)ucode_raw->size);
567 return -EINVAL;
568 }
569
570
571 set_sec_data(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_INST, src);
572 src += get_sec_size(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_INST);
573 set_sec_offset(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_INST,
574 IWLAGN_RTC_INST_LOWER_BOUND);
575 set_sec_data(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_DATA, src);
576 src += get_sec_size(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_DATA);
577 set_sec_offset(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_DATA,
578 IWLAGN_RTC_DATA_LOWER_BOUND);
579 set_sec_data(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_INST, src);
580 src += get_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_INST);
581 set_sec_offset(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_INST,
582 IWLAGN_RTC_INST_LOWER_BOUND);
583 set_sec_data(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_DATA, src);
584 src += get_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_DATA);
585 set_sec_offset(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_DATA,
586 IWLAGN_RTC_DATA_LOWER_BOUND);
587 return 0;
588 }
589
iwl_drv_set_dump_exclude(struct iwl_drv * drv,enum iwl_ucode_tlv_type tlv_type,const void * tlv_data,u32 tlv_len)590 static void iwl_drv_set_dump_exclude(struct iwl_drv *drv,
591 enum iwl_ucode_tlv_type tlv_type,
592 const void *tlv_data, u32 tlv_len)
593 {
594 const struct iwl_fw_dump_exclude *fw = tlv_data;
595 struct iwl_dump_exclude *excl;
596
597 if (tlv_len < sizeof(*fw))
598 return;
599
600 if (tlv_type == IWL_UCODE_TLV_SEC_TABLE_ADDR) {
601 excl = &drv->fw.dump_excl[0];
602
603 /* second time we find this, it's for WoWLAN */
604 if (excl->addr)
605 excl = &drv->fw.dump_excl_wowlan[0];
606 } else if (fw_has_capa(&drv->fw.ucode_capa,
607 IWL_UCODE_TLV_CAPA_CNSLDTD_D3_D0_IMG)) {
608 /* IWL_UCODE_TLV_D3_KEK_KCK_ADDR is regular image */
609 excl = &drv->fw.dump_excl[0];
610 } else {
611 /* IWL_UCODE_TLV_D3_KEK_KCK_ADDR is WoWLAN image */
612 excl = &drv->fw.dump_excl_wowlan[0];
613 }
614
615 if (excl->addr)
616 excl++;
617
618 if (excl->addr) {
619 IWL_DEBUG_FW_INFO(drv, "found too many excludes in fw file\n");
620 return;
621 }
622
623 excl->addr = le32_to_cpu(fw->addr) & ~FW_ADDR_CACHE_CONTROL;
624 excl->size = le32_to_cpu(fw->size);
625 }
626
iwl_parse_dbg_tlv_assert_tables(struct iwl_drv * drv,const struct iwl_ucode_tlv * tlv)627 static void iwl_parse_dbg_tlv_assert_tables(struct iwl_drv *drv,
628 const struct iwl_ucode_tlv *tlv)
629 {
630 const struct iwl_fw_ini_region_tlv *region;
631 u32 length = le32_to_cpu(tlv->length);
632 u32 addr;
633
634 if (length < offsetof(typeof(*region), special_mem) +
635 sizeof(region->special_mem))
636 return;
637
638 region = (const void *)tlv->data;
639 addr = le32_to_cpu(region->special_mem.base_addr);
640 addr += le32_to_cpu(region->special_mem.offset);
641 addr &= ~FW_ADDR_CACHE_CONTROL;
642
643 if (region->type != IWL_FW_INI_REGION_SPECIAL_DEVICE_MEMORY)
644 return;
645
646 switch (region->sub_type) {
647 case IWL_FW_INI_REGION_DEVICE_MEMORY_SUBTYPE_UMAC_ERROR_TABLE:
648 drv->trans->dbg.umac_error_event_table = addr;
649 drv->trans->dbg.error_event_table_tlv_status |=
650 IWL_ERROR_EVENT_TABLE_UMAC;
651 break;
652 case IWL_FW_INI_REGION_DEVICE_MEMORY_SUBTYPE_LMAC_1_ERROR_TABLE:
653 drv->trans->dbg.lmac_error_event_table[0] = addr;
654 drv->trans->dbg.error_event_table_tlv_status |=
655 IWL_ERROR_EVENT_TABLE_LMAC1;
656 break;
657 case IWL_FW_INI_REGION_DEVICE_MEMORY_SUBTYPE_LMAC_2_ERROR_TABLE:
658 drv->trans->dbg.lmac_error_event_table[1] = addr;
659 drv->trans->dbg.error_event_table_tlv_status |=
660 IWL_ERROR_EVENT_TABLE_LMAC2;
661 break;
662 case IWL_FW_INI_REGION_DEVICE_MEMORY_SUBTYPE_TCM_1_ERROR_TABLE:
663 drv->trans->dbg.tcm_error_event_table[0] = addr;
664 drv->trans->dbg.error_event_table_tlv_status |=
665 IWL_ERROR_EVENT_TABLE_TCM1;
666 break;
667 case IWL_FW_INI_REGION_DEVICE_MEMORY_SUBTYPE_TCM_2_ERROR_TABLE:
668 drv->trans->dbg.tcm_error_event_table[1] = addr;
669 drv->trans->dbg.error_event_table_tlv_status |=
670 IWL_ERROR_EVENT_TABLE_TCM2;
671 break;
672 case IWL_FW_INI_REGION_DEVICE_MEMORY_SUBTYPE_RCM_1_ERROR_TABLE:
673 drv->trans->dbg.rcm_error_event_table[0] = addr;
674 drv->trans->dbg.error_event_table_tlv_status |=
675 IWL_ERROR_EVENT_TABLE_RCM1;
676 break;
677 case IWL_FW_INI_REGION_DEVICE_MEMORY_SUBTYPE_RCM_2_ERROR_TABLE:
678 drv->trans->dbg.rcm_error_event_table[1] = addr;
679 drv->trans->dbg.error_event_table_tlv_status |=
680 IWL_ERROR_EVENT_TABLE_RCM2;
681 break;
682 default:
683 break;
684 }
685 }
686
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)687 static int iwl_parse_tlv_firmware(struct iwl_drv *drv,
688 const struct firmware *ucode_raw,
689 struct iwl_firmware_pieces *pieces,
690 struct iwl_ucode_capabilities *capa,
691 bool *usniffer_images)
692 {
693 const struct iwl_tlv_ucode_header *ucode = (const void *)ucode_raw->data;
694 const struct iwl_ucode_tlv *tlv;
695 size_t len = ucode_raw->size;
696 const u8 *data;
697 u32 tlv_len;
698 u32 usniffer_img;
699 enum iwl_ucode_tlv_type tlv_type;
700 const u8 *tlv_data;
701 char buildstr[25];
702 u32 build, paging_mem_size;
703 int num_of_cpus;
704 bool usniffer_req = false;
705
706 if (len < sizeof(*ucode)) {
707 IWL_ERR(drv, "uCode has invalid length: %zd\n", len);
708 return -EINVAL;
709 }
710
711 if (ucode->magic != cpu_to_le32(IWL_TLV_UCODE_MAGIC)) {
712 IWL_ERR(drv, "invalid uCode magic: 0X%x\n",
713 le32_to_cpu(ucode->magic));
714 return -EINVAL;
715 }
716
717 drv->fw.ucode_ver = le32_to_cpu(ucode->ver);
718 memcpy(drv->fw.human_readable, ucode->human_readable,
719 sizeof(drv->fw.human_readable));
720 build = le32_to_cpu(ucode->build);
721
722 if (build)
723 sprintf(buildstr, " build %u", build);
724 else
725 buildstr[0] = '\0';
726
727 snprintf(drv->fw.fw_version,
728 sizeof(drv->fw.fw_version),
729 "%u.%u.%u.%u%s %s",
730 IWL_UCODE_MAJOR(drv->fw.ucode_ver),
731 IWL_UCODE_MINOR(drv->fw.ucode_ver),
732 IWL_UCODE_API(drv->fw.ucode_ver),
733 IWL_UCODE_SERIAL(drv->fw.ucode_ver),
734 buildstr, iwl_reduced_fw_name(drv));
735
736 data = ucode->data;
737
738 len -= sizeof(*ucode);
739
740 while (len >= sizeof(*tlv)) {
741 len -= sizeof(*tlv);
742
743 tlv = (const void *)data;
744 tlv_len = le32_to_cpu(tlv->length);
745 tlv_type = le32_to_cpu(tlv->type);
746 tlv_data = tlv->data;
747
748 if (len < tlv_len) {
749 IWL_ERR(drv, "invalid TLV len: %zd/%u\n",
750 len, tlv_len);
751 return -EINVAL;
752 }
753 len -= ALIGN(tlv_len, 4);
754 data += sizeof(*tlv) + ALIGN(tlv_len, 4);
755
756 switch (tlv_type) {
757 case IWL_UCODE_TLV_INST:
758 set_sec_data(pieces, IWL_UCODE_REGULAR,
759 IWL_UCODE_SECTION_INST, tlv_data);
760 set_sec_size(pieces, IWL_UCODE_REGULAR,
761 IWL_UCODE_SECTION_INST, tlv_len);
762 set_sec_offset(pieces, IWL_UCODE_REGULAR,
763 IWL_UCODE_SECTION_INST,
764 IWLAGN_RTC_INST_LOWER_BOUND);
765 break;
766 case IWL_UCODE_TLV_DATA:
767 set_sec_data(pieces, IWL_UCODE_REGULAR,
768 IWL_UCODE_SECTION_DATA, tlv_data);
769 set_sec_size(pieces, IWL_UCODE_REGULAR,
770 IWL_UCODE_SECTION_DATA, tlv_len);
771 set_sec_offset(pieces, IWL_UCODE_REGULAR,
772 IWL_UCODE_SECTION_DATA,
773 IWLAGN_RTC_DATA_LOWER_BOUND);
774 break;
775 case IWL_UCODE_TLV_INIT:
776 set_sec_data(pieces, IWL_UCODE_INIT,
777 IWL_UCODE_SECTION_INST, tlv_data);
778 set_sec_size(pieces, IWL_UCODE_INIT,
779 IWL_UCODE_SECTION_INST, tlv_len);
780 set_sec_offset(pieces, IWL_UCODE_INIT,
781 IWL_UCODE_SECTION_INST,
782 IWLAGN_RTC_INST_LOWER_BOUND);
783 break;
784 case IWL_UCODE_TLV_INIT_DATA:
785 set_sec_data(pieces, IWL_UCODE_INIT,
786 IWL_UCODE_SECTION_DATA, tlv_data);
787 set_sec_size(pieces, IWL_UCODE_INIT,
788 IWL_UCODE_SECTION_DATA, tlv_len);
789 set_sec_offset(pieces, IWL_UCODE_INIT,
790 IWL_UCODE_SECTION_DATA,
791 IWLAGN_RTC_DATA_LOWER_BOUND);
792 break;
793 case IWL_UCODE_TLV_BOOT:
794 IWL_ERR(drv, "Found unexpected BOOT ucode\n");
795 break;
796 case IWL_UCODE_TLV_PROBE_MAX_LEN:
797 if (tlv_len != sizeof(u32))
798 goto invalid_tlv_len;
799 capa->max_probe_length =
800 le32_to_cpup((const __le32 *)tlv_data);
801 break;
802 case IWL_UCODE_TLV_PAN:
803 if (tlv_len)
804 goto invalid_tlv_len;
805 capa->flags |= IWL_UCODE_TLV_FLAGS_PAN;
806 break;
807 case IWL_UCODE_TLV_FLAGS:
808 /* must be at least one u32 */
809 if (tlv_len < sizeof(u32))
810 goto invalid_tlv_len;
811 /* and a proper number of u32s */
812 if (tlv_len % sizeof(u32))
813 goto invalid_tlv_len;
814 /*
815 * This driver only reads the first u32 as
816 * right now no more features are defined,
817 * if that changes then either the driver
818 * will not work with the new firmware, or
819 * it'll not take advantage of new features.
820 */
821 capa->flags = le32_to_cpup((const __le32 *)tlv_data);
822 break;
823 case IWL_UCODE_TLV_API_CHANGES_SET:
824 if (tlv_len != sizeof(struct iwl_ucode_api))
825 goto invalid_tlv_len;
826 iwl_set_ucode_api_flags(drv, tlv_data, capa);
827 break;
828 case IWL_UCODE_TLV_ENABLED_CAPABILITIES:
829 if (tlv_len != sizeof(struct iwl_ucode_capa))
830 goto invalid_tlv_len;
831 iwl_set_ucode_capabilities(drv, tlv_data, capa);
832 break;
833 case IWL_UCODE_TLV_INIT_EVTLOG_PTR:
834 if (tlv_len != sizeof(u32))
835 goto invalid_tlv_len;
836 pieces->init_evtlog_ptr =
837 le32_to_cpup((const __le32 *)tlv_data);
838 break;
839 case IWL_UCODE_TLV_INIT_EVTLOG_SIZE:
840 if (tlv_len != sizeof(u32))
841 goto invalid_tlv_len;
842 pieces->init_evtlog_size =
843 le32_to_cpup((const __le32 *)tlv_data);
844 break;
845 case IWL_UCODE_TLV_INIT_ERRLOG_PTR:
846 if (tlv_len != sizeof(u32))
847 goto invalid_tlv_len;
848 pieces->init_errlog_ptr =
849 le32_to_cpup((const __le32 *)tlv_data);
850 break;
851 case IWL_UCODE_TLV_RUNT_EVTLOG_PTR:
852 if (tlv_len != sizeof(u32))
853 goto invalid_tlv_len;
854 pieces->inst_evtlog_ptr =
855 le32_to_cpup((const __le32 *)tlv_data);
856 break;
857 case IWL_UCODE_TLV_RUNT_EVTLOG_SIZE:
858 if (tlv_len != sizeof(u32))
859 goto invalid_tlv_len;
860 pieces->inst_evtlog_size =
861 le32_to_cpup((const __le32 *)tlv_data);
862 break;
863 case IWL_UCODE_TLV_RUNT_ERRLOG_PTR:
864 if (tlv_len != sizeof(u32))
865 goto invalid_tlv_len;
866 pieces->inst_errlog_ptr =
867 le32_to_cpup((const __le32 *)tlv_data);
868 break;
869 case IWL_UCODE_TLV_ENHANCE_SENS_TBL:
870 if (tlv_len)
871 goto invalid_tlv_len;
872 drv->fw.enhance_sensitivity_table = true;
873 break;
874 case IWL_UCODE_TLV_WOWLAN_INST:
875 set_sec_data(pieces, IWL_UCODE_WOWLAN,
876 IWL_UCODE_SECTION_INST, tlv_data);
877 set_sec_size(pieces, IWL_UCODE_WOWLAN,
878 IWL_UCODE_SECTION_INST, tlv_len);
879 set_sec_offset(pieces, IWL_UCODE_WOWLAN,
880 IWL_UCODE_SECTION_INST,
881 IWLAGN_RTC_INST_LOWER_BOUND);
882 break;
883 case IWL_UCODE_TLV_WOWLAN_DATA:
884 set_sec_data(pieces, IWL_UCODE_WOWLAN,
885 IWL_UCODE_SECTION_DATA, tlv_data);
886 set_sec_size(pieces, IWL_UCODE_WOWLAN,
887 IWL_UCODE_SECTION_DATA, tlv_len);
888 set_sec_offset(pieces, IWL_UCODE_WOWLAN,
889 IWL_UCODE_SECTION_DATA,
890 IWLAGN_RTC_DATA_LOWER_BOUND);
891 break;
892 case IWL_UCODE_TLV_PHY_CALIBRATION_SIZE:
893 if (tlv_len != sizeof(u32))
894 goto invalid_tlv_len;
895 capa->standard_phy_calibration_size =
896 le32_to_cpup((const __le32 *)tlv_data);
897 break;
898 case IWL_UCODE_TLV_SEC_RT:
899 iwl_store_ucode_sec(pieces, tlv_data, IWL_UCODE_REGULAR,
900 tlv_len);
901 drv->fw.type = IWL_FW_MVM;
902 break;
903 case IWL_UCODE_TLV_SEC_INIT:
904 iwl_store_ucode_sec(pieces, tlv_data, IWL_UCODE_INIT,
905 tlv_len);
906 drv->fw.type = IWL_FW_MVM;
907 break;
908 case IWL_UCODE_TLV_SEC_WOWLAN:
909 iwl_store_ucode_sec(pieces, tlv_data, IWL_UCODE_WOWLAN,
910 tlv_len);
911 drv->fw.type = IWL_FW_MVM;
912 break;
913 case IWL_UCODE_TLV_DEF_CALIB:
914 if (tlv_len != sizeof(struct iwl_tlv_calib_data))
915 goto invalid_tlv_len;
916 if (iwl_set_default_calib(drv, tlv_data))
917 goto tlv_error;
918 break;
919 case IWL_UCODE_TLV_PHY_SKU:
920 if (tlv_len != sizeof(u32))
921 goto invalid_tlv_len;
922 drv->fw.phy_config = le32_to_cpup((const __le32 *)tlv_data);
923 drv->fw.valid_tx_ant = (drv->fw.phy_config &
924 FW_PHY_CFG_TX_CHAIN) >>
925 FW_PHY_CFG_TX_CHAIN_POS;
926 drv->fw.valid_rx_ant = (drv->fw.phy_config &
927 FW_PHY_CFG_RX_CHAIN) >>
928 FW_PHY_CFG_RX_CHAIN_POS;
929 break;
930 case IWL_UCODE_TLV_SECURE_SEC_RT:
931 iwl_store_ucode_sec(pieces, tlv_data, IWL_UCODE_REGULAR,
932 tlv_len);
933 drv->fw.type = IWL_FW_MVM;
934 break;
935 case IWL_UCODE_TLV_SECURE_SEC_INIT:
936 iwl_store_ucode_sec(pieces, tlv_data, IWL_UCODE_INIT,
937 tlv_len);
938 drv->fw.type = IWL_FW_MVM;
939 break;
940 case IWL_UCODE_TLV_SECURE_SEC_WOWLAN:
941 iwl_store_ucode_sec(pieces, tlv_data, IWL_UCODE_WOWLAN,
942 tlv_len);
943 drv->fw.type = IWL_FW_MVM;
944 break;
945 case IWL_UCODE_TLV_NUM_OF_CPU:
946 if (tlv_len != sizeof(u32))
947 goto invalid_tlv_len;
948 num_of_cpus =
949 le32_to_cpup((const __le32 *)tlv_data);
950
951 if (num_of_cpus == 2) {
952 drv->fw.img[IWL_UCODE_REGULAR].is_dual_cpus =
953 true;
954 drv->fw.img[IWL_UCODE_INIT].is_dual_cpus =
955 true;
956 drv->fw.img[IWL_UCODE_WOWLAN].is_dual_cpus =
957 true;
958 } else if ((num_of_cpus > 2) || (num_of_cpus < 1)) {
959 IWL_ERR(drv, "Driver support up to 2 CPUs\n");
960 return -EINVAL;
961 }
962 break;
963 case IWL_UCODE_TLV_N_SCAN_CHANNELS:
964 if (tlv_len != sizeof(u32))
965 goto invalid_tlv_len;
966 capa->n_scan_channels =
967 le32_to_cpup((const __le32 *)tlv_data);
968 break;
969 case IWL_UCODE_TLV_FW_VERSION: {
970 const __le32 *ptr = (const void *)tlv_data;
971 u32 major, minor;
972 u8 local_comp;
973
974 if (tlv_len != sizeof(u32) * 3)
975 goto invalid_tlv_len;
976
977 major = le32_to_cpup(ptr++);
978 minor = le32_to_cpup(ptr++);
979 local_comp = le32_to_cpup(ptr);
980
981 if (major >= 35)
982 snprintf(drv->fw.fw_version,
983 sizeof(drv->fw.fw_version),
984 "%u.%08x.%u %s", major, minor,
985 local_comp, iwl_reduced_fw_name(drv));
986 else
987 snprintf(drv->fw.fw_version,
988 sizeof(drv->fw.fw_version),
989 "%u.%u.%u %s", major, minor,
990 local_comp, iwl_reduced_fw_name(drv));
991 break;
992 }
993 case IWL_UCODE_TLV_FW_DBG_DEST: {
994 const struct iwl_fw_dbg_dest_tlv *dest = NULL;
995 const struct iwl_fw_dbg_dest_tlv_v1 *dest_v1 = NULL;
996 u8 mon_mode;
997
998 pieces->dbg_dest_ver = (const u8 *)tlv_data;
999 if (*pieces->dbg_dest_ver == 1) {
1000 dest = (const void *)tlv_data;
1001 } else if (*pieces->dbg_dest_ver == 0) {
1002 dest_v1 = (const void *)tlv_data;
1003 } else {
1004 IWL_ERR(drv,
1005 "The version is %d, and it is invalid\n",
1006 *pieces->dbg_dest_ver);
1007 break;
1008 }
1009
1010 if (pieces->dbg_dest_tlv_init) {
1011 IWL_ERR(drv,
1012 "dbg destination ignored, already exists\n");
1013 break;
1014 }
1015
1016 pieces->dbg_dest_tlv_init = true;
1017
1018 if (dest_v1) {
1019 pieces->dbg_dest_tlv_v1 = dest_v1;
1020 mon_mode = dest_v1->monitor_mode;
1021 } else {
1022 pieces->dbg_dest_tlv = dest;
1023 mon_mode = dest->monitor_mode;
1024 }
1025
1026 IWL_INFO(drv, "Found debug destination: %s\n",
1027 get_fw_dbg_mode_string(mon_mode));
1028
1029 drv->fw.dbg.n_dest_reg = (dest_v1) ?
1030 tlv_len -
1031 offsetof(struct iwl_fw_dbg_dest_tlv_v1,
1032 reg_ops) :
1033 tlv_len -
1034 offsetof(struct iwl_fw_dbg_dest_tlv,
1035 reg_ops);
1036
1037 drv->fw.dbg.n_dest_reg /=
1038 sizeof(drv->fw.dbg.dest_tlv->reg_ops[0]);
1039
1040 break;
1041 }
1042 case IWL_UCODE_TLV_FW_DBG_CONF: {
1043 const struct iwl_fw_dbg_conf_tlv *conf =
1044 (const void *)tlv_data;
1045
1046 if (!pieces->dbg_dest_tlv_init) {
1047 IWL_ERR(drv,
1048 "Ignore dbg config %d - no destination configured\n",
1049 conf->id);
1050 break;
1051 }
1052
1053 if (conf->id >= ARRAY_SIZE(drv->fw.dbg.conf_tlv)) {
1054 IWL_ERR(drv,
1055 "Skip unknown configuration: %d\n",
1056 conf->id);
1057 break;
1058 }
1059
1060 if (pieces->dbg_conf_tlv[conf->id]) {
1061 IWL_ERR(drv,
1062 "Ignore duplicate dbg config %d\n",
1063 conf->id);
1064 break;
1065 }
1066
1067 if (conf->usniffer)
1068 usniffer_req = true;
1069
1070 IWL_INFO(drv, "Found debug configuration: %d\n",
1071 conf->id);
1072
1073 pieces->dbg_conf_tlv[conf->id] = conf;
1074 pieces->dbg_conf_tlv_len[conf->id] = tlv_len;
1075 break;
1076 }
1077 case IWL_UCODE_TLV_FW_DBG_TRIGGER: {
1078 const struct iwl_fw_dbg_trigger_tlv *trigger =
1079 (const void *)tlv_data;
1080 u32 trigger_id = le32_to_cpu(trigger->id);
1081
1082 if (trigger_id >= ARRAY_SIZE(drv->fw.dbg.trigger_tlv)) {
1083 IWL_ERR(drv,
1084 "Skip unknown trigger: %u\n",
1085 trigger->id);
1086 break;
1087 }
1088
1089 if (pieces->dbg_trigger_tlv[trigger_id]) {
1090 IWL_ERR(drv,
1091 "Ignore duplicate dbg trigger %u\n",
1092 trigger->id);
1093 break;
1094 }
1095
1096 IWL_INFO(drv, "Found debug trigger: %u\n", trigger->id);
1097
1098 pieces->dbg_trigger_tlv[trigger_id] = trigger;
1099 pieces->dbg_trigger_tlv_len[trigger_id] = tlv_len;
1100 break;
1101 }
1102 case IWL_UCODE_TLV_FW_DBG_DUMP_LST: {
1103 if (tlv_len != sizeof(u32)) {
1104 IWL_ERR(drv,
1105 "dbg lst mask size incorrect, skip\n");
1106 break;
1107 }
1108
1109 drv->fw.dbg.dump_mask =
1110 le32_to_cpup((const __le32 *)tlv_data);
1111 break;
1112 }
1113 case IWL_UCODE_TLV_SEC_RT_USNIFFER:
1114 *usniffer_images = true;
1115 iwl_store_ucode_sec(pieces, tlv_data,
1116 IWL_UCODE_REGULAR_USNIFFER,
1117 tlv_len);
1118 break;
1119 case IWL_UCODE_TLV_PAGING:
1120 if (tlv_len != sizeof(u32))
1121 goto invalid_tlv_len;
1122 paging_mem_size = le32_to_cpup((const __le32 *)tlv_data);
1123
1124 IWL_DEBUG_FW(drv,
1125 "Paging: paging enabled (size = %u bytes)\n",
1126 paging_mem_size);
1127
1128 if (paging_mem_size > MAX_PAGING_IMAGE_SIZE) {
1129 IWL_ERR(drv,
1130 "Paging: driver supports up to %lu bytes for paging image\n",
1131 MAX_PAGING_IMAGE_SIZE);
1132 return -EINVAL;
1133 }
1134
1135 if (paging_mem_size & (FW_PAGING_SIZE - 1)) {
1136 IWL_ERR(drv,
1137 "Paging: image isn't multiple %lu\n",
1138 FW_PAGING_SIZE);
1139 return -EINVAL;
1140 }
1141
1142 drv->fw.img[IWL_UCODE_REGULAR].paging_mem_size =
1143 paging_mem_size;
1144 usniffer_img = IWL_UCODE_REGULAR_USNIFFER;
1145 drv->fw.img[usniffer_img].paging_mem_size =
1146 paging_mem_size;
1147 break;
1148 case IWL_UCODE_TLV_FW_GSCAN_CAPA:
1149 /* ignored */
1150 break;
1151 case IWL_UCODE_TLV_FW_MEM_SEG: {
1152 const struct iwl_fw_dbg_mem_seg_tlv *dbg_mem =
1153 (const void *)tlv_data;
1154 size_t size;
1155 struct iwl_fw_dbg_mem_seg_tlv *n;
1156
1157 if (tlv_len != (sizeof(*dbg_mem)))
1158 goto invalid_tlv_len;
1159
1160 IWL_DEBUG_INFO(drv, "Found debug memory segment: %u\n",
1161 dbg_mem->data_type);
1162
1163 size = sizeof(*pieces->dbg_mem_tlv) *
1164 (pieces->n_mem_tlv + 1);
1165 n = krealloc(pieces->dbg_mem_tlv, size, GFP_KERNEL);
1166 if (!n)
1167 return -ENOMEM;
1168 pieces->dbg_mem_tlv = n;
1169 pieces->dbg_mem_tlv[pieces->n_mem_tlv] = *dbg_mem;
1170 pieces->n_mem_tlv++;
1171 break;
1172 }
1173 case IWL_UCODE_TLV_IML: {
1174 drv->fw.iml_len = tlv_len;
1175 drv->fw.iml = kmemdup(tlv_data, tlv_len, GFP_KERNEL);
1176 if (!drv->fw.iml)
1177 return -ENOMEM;
1178 break;
1179 }
1180 case IWL_UCODE_TLV_FW_RECOVERY_INFO: {
1181 const struct {
1182 __le32 buf_addr;
1183 __le32 buf_size;
1184 } *recov_info = (const void *)tlv_data;
1185
1186 if (tlv_len != sizeof(*recov_info))
1187 goto invalid_tlv_len;
1188 capa->error_log_addr =
1189 le32_to_cpu(recov_info->buf_addr);
1190 capa->error_log_size =
1191 le32_to_cpu(recov_info->buf_size);
1192 }
1193 break;
1194 case IWL_UCODE_TLV_FW_FSEQ_VERSION: {
1195 const struct {
1196 u8 version[32];
1197 u8 sha1[20];
1198 } *fseq_ver = (const void *)tlv_data;
1199
1200 if (tlv_len != sizeof(*fseq_ver))
1201 goto invalid_tlv_len;
1202 IWL_INFO(drv, "TLV_FW_FSEQ_VERSION: %s\n",
1203 fseq_ver->version);
1204 }
1205 break;
1206 case IWL_UCODE_TLV_FW_NUM_STATIONS:
1207 if (tlv_len != sizeof(u32))
1208 goto invalid_tlv_len;
1209 if (le32_to_cpup((const __le32 *)tlv_data) >
1210 IWL_MVM_STATION_COUNT_MAX) {
1211 IWL_ERR(drv,
1212 "%d is an invalid number of station\n",
1213 le32_to_cpup((const __le32 *)tlv_data));
1214 goto tlv_error;
1215 }
1216 capa->num_stations =
1217 le32_to_cpup((const __le32 *)tlv_data);
1218 break;
1219 case IWL_UCODE_TLV_FW_NUM_BEACONS:
1220 if (tlv_len != sizeof(u32))
1221 goto invalid_tlv_len;
1222 capa->num_beacons =
1223 le32_to_cpup((const __le32 *)tlv_data);
1224 break;
1225 case IWL_UCODE_TLV_UMAC_DEBUG_ADDRS: {
1226 const struct iwl_umac_debug_addrs *dbg_ptrs =
1227 (const void *)tlv_data;
1228
1229 if (tlv_len != sizeof(*dbg_ptrs))
1230 goto invalid_tlv_len;
1231 if (drv->trans->trans_cfg->device_family <
1232 IWL_DEVICE_FAMILY_22000)
1233 break;
1234 drv->trans->dbg.umac_error_event_table =
1235 le32_to_cpu(dbg_ptrs->error_info_addr) &
1236 ~FW_ADDR_CACHE_CONTROL;
1237 drv->trans->dbg.error_event_table_tlv_status |=
1238 IWL_ERROR_EVENT_TABLE_UMAC;
1239 break;
1240 }
1241 case IWL_UCODE_TLV_LMAC_DEBUG_ADDRS: {
1242 const struct iwl_lmac_debug_addrs *dbg_ptrs =
1243 (const void *)tlv_data;
1244
1245 if (tlv_len != sizeof(*dbg_ptrs))
1246 goto invalid_tlv_len;
1247 if (drv->trans->trans_cfg->device_family <
1248 IWL_DEVICE_FAMILY_22000)
1249 break;
1250 drv->trans->dbg.lmac_error_event_table[0] =
1251 le32_to_cpu(dbg_ptrs->error_event_table_ptr) &
1252 ~FW_ADDR_CACHE_CONTROL;
1253 drv->trans->dbg.error_event_table_tlv_status |=
1254 IWL_ERROR_EVENT_TABLE_LMAC1;
1255 break;
1256 }
1257 case IWL_UCODE_TLV_TYPE_REGIONS:
1258 iwl_parse_dbg_tlv_assert_tables(drv, tlv);
1259 fallthrough;
1260 case IWL_UCODE_TLV_TYPE_DEBUG_INFO:
1261 case IWL_UCODE_TLV_TYPE_BUFFER_ALLOCATION:
1262 case IWL_UCODE_TLV_TYPE_HCMD:
1263 case IWL_UCODE_TLV_TYPE_TRIGGERS:
1264 case IWL_UCODE_TLV_TYPE_CONF_SET:
1265 if (iwlwifi_mod_params.enable_ini)
1266 iwl_dbg_tlv_alloc(drv->trans, tlv, false);
1267 break;
1268 case IWL_UCODE_TLV_CMD_VERSIONS:
1269 if (tlv_len % sizeof(struct iwl_fw_cmd_version)) {
1270 IWL_ERR(drv,
1271 "Invalid length for command versions: %u\n",
1272 tlv_len);
1273 tlv_len /= sizeof(struct iwl_fw_cmd_version);
1274 tlv_len *= sizeof(struct iwl_fw_cmd_version);
1275 }
1276 if (WARN_ON(capa->cmd_versions))
1277 return -EINVAL;
1278 capa->cmd_versions = kmemdup(tlv_data, tlv_len,
1279 GFP_KERNEL);
1280 if (!capa->cmd_versions)
1281 return -ENOMEM;
1282 capa->n_cmd_versions =
1283 tlv_len / sizeof(struct iwl_fw_cmd_version);
1284 break;
1285 case IWL_UCODE_TLV_PHY_INTEGRATION_VERSION:
1286 if (drv->fw.phy_integration_ver) {
1287 IWL_ERR(drv,
1288 "phy integration str ignored, already exists\n");
1289 break;
1290 }
1291
1292 drv->fw.phy_integration_ver =
1293 kmemdup(tlv_data, tlv_len, GFP_KERNEL);
1294 if (!drv->fw.phy_integration_ver)
1295 return -ENOMEM;
1296 drv->fw.phy_integration_ver_len = tlv_len;
1297 break;
1298 case IWL_UCODE_TLV_SEC_TABLE_ADDR:
1299 case IWL_UCODE_TLV_D3_KEK_KCK_ADDR:
1300 iwl_drv_set_dump_exclude(drv, tlv_type,
1301 tlv_data, tlv_len);
1302 break;
1303 case IWL_UCODE_TLV_CURRENT_PC:
1304 if (tlv_len < sizeof(struct iwl_pc_data))
1305 goto invalid_tlv_len;
1306 drv->trans->dbg.num_pc =
1307 tlv_len / sizeof(struct iwl_pc_data);
1308 drv->trans->dbg.pc_data =
1309 kmemdup(tlv_data, tlv_len, GFP_KERNEL);
1310 break;
1311 default:
1312 IWL_DEBUG_INFO(drv, "unknown TLV: %d\n", tlv_type);
1313 break;
1314 }
1315 }
1316
1317 if (!fw_has_capa(capa, IWL_UCODE_TLV_CAPA_USNIFFER_UNIFIED) &&
1318 usniffer_req && !*usniffer_images) {
1319 IWL_ERR(drv,
1320 "user selected to work with usniffer but usniffer image isn't available in ucode package\n");
1321 return -EINVAL;
1322 }
1323
1324 if (len) {
1325 IWL_ERR(drv, "invalid TLV after parsing: %zd\n", len);
1326 iwl_print_hex_dump(drv, IWL_DL_FW, data, len);
1327 return -EINVAL;
1328 }
1329
1330 return 0;
1331
1332 invalid_tlv_len:
1333 IWL_ERR(drv, "TLV %d has invalid size: %u\n", tlv_type, tlv_len);
1334 tlv_error:
1335 iwl_print_hex_dump(drv, IWL_DL_FW, tlv_data, tlv_len);
1336
1337 return -EINVAL;
1338 }
1339
iwl_alloc_ucode(struct iwl_drv * drv,struct iwl_firmware_pieces * pieces,enum iwl_ucode_type type)1340 static int iwl_alloc_ucode(struct iwl_drv *drv,
1341 struct iwl_firmware_pieces *pieces,
1342 enum iwl_ucode_type type)
1343 {
1344 int i;
1345 struct fw_desc *sec;
1346
1347 sec = kcalloc(pieces->img[type].sec_counter, sizeof(*sec), GFP_KERNEL);
1348 if (!sec)
1349 return -ENOMEM;
1350 drv->fw.img[type].sec = sec;
1351 drv->fw.img[type].num_sec = pieces->img[type].sec_counter;
1352
1353 for (i = 0; i < pieces->img[type].sec_counter; i++)
1354 if (iwl_alloc_fw_desc(drv, &sec[i], get_sec(pieces, type, i)))
1355 return -ENOMEM;
1356
1357 return 0;
1358 }
1359
validate_sec_sizes(struct iwl_drv * drv,struct iwl_firmware_pieces * pieces,const struct iwl_cfg * cfg)1360 static int validate_sec_sizes(struct iwl_drv *drv,
1361 struct iwl_firmware_pieces *pieces,
1362 const struct iwl_cfg *cfg)
1363 {
1364 IWL_DEBUG_INFO(drv, "f/w package hdr runtime inst size = %zd\n",
1365 get_sec_size(pieces, IWL_UCODE_REGULAR,
1366 IWL_UCODE_SECTION_INST));
1367 IWL_DEBUG_INFO(drv, "f/w package hdr runtime data size = %zd\n",
1368 get_sec_size(pieces, IWL_UCODE_REGULAR,
1369 IWL_UCODE_SECTION_DATA));
1370 IWL_DEBUG_INFO(drv, "f/w package hdr init inst size = %zd\n",
1371 get_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_INST));
1372 IWL_DEBUG_INFO(drv, "f/w package hdr init data size = %zd\n",
1373 get_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_DATA));
1374
1375 /* Verify that uCode images will fit in card's SRAM. */
1376 if (get_sec_size(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_INST) >
1377 cfg->max_inst_size) {
1378 IWL_ERR(drv, "uCode instr len %zd too large to fit in\n",
1379 get_sec_size(pieces, IWL_UCODE_REGULAR,
1380 IWL_UCODE_SECTION_INST));
1381 return -1;
1382 }
1383
1384 if (get_sec_size(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_DATA) >
1385 cfg->max_data_size) {
1386 IWL_ERR(drv, "uCode data len %zd too large to fit in\n",
1387 get_sec_size(pieces, IWL_UCODE_REGULAR,
1388 IWL_UCODE_SECTION_DATA));
1389 return -1;
1390 }
1391
1392 if (get_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_INST) >
1393 cfg->max_inst_size) {
1394 IWL_ERR(drv, "uCode init instr len %zd too large to fit in\n",
1395 get_sec_size(pieces, IWL_UCODE_INIT,
1396 IWL_UCODE_SECTION_INST));
1397 return -1;
1398 }
1399
1400 if (get_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_DATA) >
1401 cfg->max_data_size) {
1402 IWL_ERR(drv, "uCode init data len %zd too large to fit in\n",
1403 get_sec_size(pieces, IWL_UCODE_REGULAR,
1404 IWL_UCODE_SECTION_DATA));
1405 return -1;
1406 }
1407 return 0;
1408 }
1409
1410 static struct iwl_op_mode *
_iwl_op_mode_start(struct iwl_drv * drv,struct iwlwifi_opmode_table * op)1411 _iwl_op_mode_start(struct iwl_drv *drv, struct iwlwifi_opmode_table *op)
1412 {
1413 const struct iwl_op_mode_ops *ops = op->ops;
1414 struct dentry *dbgfs_dir = NULL;
1415 struct iwl_op_mode *op_mode = NULL;
1416 int retry, max_retry = !!iwlwifi_mod_params.fw_restart * IWL_MAX_INIT_RETRY;
1417
1418 for (retry = 0; retry <= max_retry; retry++) {
1419
1420 #ifdef CONFIG_IWLWIFI_DEBUGFS
1421 drv->dbgfs_op_mode = debugfs_create_dir(op->name,
1422 drv->dbgfs_drv);
1423 dbgfs_dir = drv->dbgfs_op_mode;
1424 #endif
1425
1426 op_mode = ops->start(drv->trans, drv->trans->cfg,
1427 &drv->fw, dbgfs_dir);
1428
1429 if (op_mode)
1430 return op_mode;
1431
1432 IWL_ERR(drv, "retry init count %d\n", retry);
1433
1434 #ifdef CONFIG_IWLWIFI_DEBUGFS
1435 debugfs_remove_recursive(drv->dbgfs_op_mode);
1436 drv->dbgfs_op_mode = NULL;
1437 #endif
1438 }
1439
1440 return NULL;
1441 }
1442
_iwl_op_mode_stop(struct iwl_drv * drv)1443 static void _iwl_op_mode_stop(struct iwl_drv *drv)
1444 {
1445 /* op_mode can be NULL if its start failed */
1446 if (drv->op_mode) {
1447 iwl_op_mode_stop(drv->op_mode);
1448 drv->op_mode = NULL;
1449
1450 #ifdef CONFIG_IWLWIFI_DEBUGFS
1451 debugfs_remove_recursive(drv->dbgfs_op_mode);
1452 drv->dbgfs_op_mode = NULL;
1453 #endif
1454 }
1455 }
1456
1457 /*
1458 * iwl_req_fw_callback - callback when firmware was loaded
1459 *
1460 * If loaded successfully, copies the firmware into buffers
1461 * for the card to fetch (via DMA).
1462 */
iwl_req_fw_callback(const struct firmware * ucode_raw,void * context)1463 static void iwl_req_fw_callback(const struct firmware *ucode_raw, void *context)
1464 {
1465 struct iwl_drv *drv = context;
1466 struct iwl_fw *fw = &drv->fw;
1467 const struct iwl_ucode_header *ucode;
1468 struct iwlwifi_opmode_table *op;
1469 int err;
1470 struct iwl_firmware_pieces *pieces;
1471 const unsigned int api_max = drv->trans->cfg->ucode_api_max;
1472 const unsigned int api_min = drv->trans->cfg->ucode_api_min;
1473 size_t trigger_tlv_sz[FW_DBG_TRIGGER_MAX];
1474 u32 api_ver;
1475 int i;
1476 bool load_module = false;
1477 bool usniffer_images = false;
1478 bool failure = true;
1479
1480 fw->ucode_capa.max_probe_length = IWL_DEFAULT_MAX_PROBE_LENGTH;
1481 fw->ucode_capa.standard_phy_calibration_size =
1482 IWL_DEFAULT_STANDARD_PHY_CALIBRATE_TBL_SIZE;
1483 fw->ucode_capa.n_scan_channels = IWL_DEFAULT_SCAN_CHANNELS;
1484 fw->ucode_capa.num_stations = IWL_MVM_STATION_COUNT_MAX;
1485 fw->ucode_capa.num_beacons = 1;
1486 /* dump all fw memory areas by default */
1487 fw->dbg.dump_mask = 0xffffffff;
1488
1489 pieces = kzalloc(sizeof(*pieces), GFP_KERNEL);
1490 if (!pieces)
1491 goto out_free_fw;
1492
1493 if (!ucode_raw)
1494 goto try_again;
1495
1496 IWL_DEBUG_FW_INFO(drv, "Loaded firmware file '%s' (%zd bytes).\n",
1497 drv->firmware_name, ucode_raw->size);
1498
1499 /* Make sure that we got at least the API version number */
1500 if (ucode_raw->size < 4) {
1501 IWL_ERR(drv, "File size way too small!\n");
1502 goto try_again;
1503 }
1504
1505 /* Data from ucode file: header followed by uCode images */
1506 ucode = (const struct iwl_ucode_header *)ucode_raw->data;
1507
1508 if (ucode->ver)
1509 err = iwl_parse_v1_v2_firmware(drv, ucode_raw, pieces);
1510 else
1511 err = iwl_parse_tlv_firmware(drv, ucode_raw, pieces,
1512 &fw->ucode_capa, &usniffer_images);
1513
1514 if (err)
1515 goto try_again;
1516
1517 if (fw_has_api(&drv->fw.ucode_capa, IWL_UCODE_TLV_API_NEW_VERSION))
1518 api_ver = drv->fw.ucode_ver;
1519 else
1520 api_ver = IWL_UCODE_API(drv->fw.ucode_ver);
1521
1522 /*
1523 * api_ver should match the api version forming part of the
1524 * firmware filename ... but we don't check for that and only rely
1525 * on the API version read from firmware header from here on forward
1526 */
1527 if (api_ver < api_min || api_ver > api_max) {
1528 IWL_ERR(drv,
1529 "Driver unable to support your firmware API. "
1530 "Driver supports v%u, firmware is v%u.\n",
1531 api_max, api_ver);
1532 goto try_again;
1533 }
1534
1535 /*
1536 * In mvm uCode there is no difference between data and instructions
1537 * sections.
1538 */
1539 if (fw->type == IWL_FW_DVM && validate_sec_sizes(drv, pieces,
1540 drv->trans->cfg))
1541 goto try_again;
1542
1543 /* Allocate ucode buffers for card's bus-master loading ... */
1544
1545 /* Runtime instructions and 2 copies of data:
1546 * 1) unmodified from disk
1547 * 2) backup cache for save/restore during power-downs
1548 */
1549 for (i = 0; i < IWL_UCODE_TYPE_MAX; i++)
1550 if (iwl_alloc_ucode(drv, pieces, i))
1551 goto out_free_fw;
1552
1553 if (pieces->dbg_dest_tlv_init) {
1554 size_t dbg_dest_size = sizeof(*drv->fw.dbg.dest_tlv) +
1555 sizeof(drv->fw.dbg.dest_tlv->reg_ops[0]) *
1556 drv->fw.dbg.n_dest_reg;
1557
1558 drv->fw.dbg.dest_tlv = kmalloc(dbg_dest_size, GFP_KERNEL);
1559
1560 if (!drv->fw.dbg.dest_tlv)
1561 goto out_free_fw;
1562
1563 if (*pieces->dbg_dest_ver == 0) {
1564 memcpy(drv->fw.dbg.dest_tlv, pieces->dbg_dest_tlv_v1,
1565 dbg_dest_size);
1566 } else {
1567 struct iwl_fw_dbg_dest_tlv_v1 *dest_tlv =
1568 drv->fw.dbg.dest_tlv;
1569
1570 dest_tlv->version = pieces->dbg_dest_tlv->version;
1571 dest_tlv->monitor_mode =
1572 pieces->dbg_dest_tlv->monitor_mode;
1573 dest_tlv->size_power =
1574 pieces->dbg_dest_tlv->size_power;
1575 dest_tlv->wrap_count =
1576 pieces->dbg_dest_tlv->wrap_count;
1577 dest_tlv->write_ptr_reg =
1578 pieces->dbg_dest_tlv->write_ptr_reg;
1579 dest_tlv->base_shift =
1580 pieces->dbg_dest_tlv->base_shift;
1581 memcpy(dest_tlv->reg_ops,
1582 pieces->dbg_dest_tlv->reg_ops,
1583 sizeof(drv->fw.dbg.dest_tlv->reg_ops[0]) *
1584 drv->fw.dbg.n_dest_reg);
1585
1586 /* In version 1 of the destination tlv, which is
1587 * relevant for internal buffer exclusively,
1588 * the base address is part of given with the length
1589 * of the buffer, and the size shift is give instead of
1590 * end shift. We now store these values in base_reg,
1591 * and end shift, and when dumping the data we'll
1592 * manipulate it for extracting both the length and
1593 * base address */
1594 dest_tlv->base_reg = pieces->dbg_dest_tlv->cfg_reg;
1595 dest_tlv->end_shift =
1596 pieces->dbg_dest_tlv->size_shift;
1597 }
1598 }
1599
1600 for (i = 0; i < ARRAY_SIZE(drv->fw.dbg.conf_tlv); i++) {
1601 if (pieces->dbg_conf_tlv[i]) {
1602 drv->fw.dbg.conf_tlv[i] =
1603 kmemdup(pieces->dbg_conf_tlv[i],
1604 pieces->dbg_conf_tlv_len[i],
1605 GFP_KERNEL);
1606 if (!drv->fw.dbg.conf_tlv[i])
1607 goto out_free_fw;
1608 }
1609 }
1610
1611 memset(&trigger_tlv_sz, 0xff, sizeof(trigger_tlv_sz));
1612
1613 trigger_tlv_sz[FW_DBG_TRIGGER_MISSED_BEACONS] =
1614 sizeof(struct iwl_fw_dbg_trigger_missed_bcon);
1615 trigger_tlv_sz[FW_DBG_TRIGGER_CHANNEL_SWITCH] = 0;
1616 trigger_tlv_sz[FW_DBG_TRIGGER_FW_NOTIF] =
1617 sizeof(struct iwl_fw_dbg_trigger_cmd);
1618 trigger_tlv_sz[FW_DBG_TRIGGER_MLME] =
1619 sizeof(struct iwl_fw_dbg_trigger_mlme);
1620 trigger_tlv_sz[FW_DBG_TRIGGER_STATS] =
1621 sizeof(struct iwl_fw_dbg_trigger_stats);
1622 trigger_tlv_sz[FW_DBG_TRIGGER_RSSI] =
1623 sizeof(struct iwl_fw_dbg_trigger_low_rssi);
1624 trigger_tlv_sz[FW_DBG_TRIGGER_TXQ_TIMERS] =
1625 sizeof(struct iwl_fw_dbg_trigger_txq_timer);
1626 trigger_tlv_sz[FW_DBG_TRIGGER_TIME_EVENT] =
1627 sizeof(struct iwl_fw_dbg_trigger_time_event);
1628 trigger_tlv_sz[FW_DBG_TRIGGER_BA] =
1629 sizeof(struct iwl_fw_dbg_trigger_ba);
1630 trigger_tlv_sz[FW_DBG_TRIGGER_TDLS] =
1631 sizeof(struct iwl_fw_dbg_trigger_tdls);
1632
1633 for (i = 0; i < ARRAY_SIZE(drv->fw.dbg.trigger_tlv); i++) {
1634 if (pieces->dbg_trigger_tlv[i]) {
1635 /*
1636 * If the trigger isn't long enough, WARN and exit.
1637 * Someone is trying to debug something and he won't
1638 * be able to catch the bug he is trying to chase.
1639 * We'd better be noisy to be sure he knows what's
1640 * going on.
1641 */
1642 if (WARN_ON(pieces->dbg_trigger_tlv_len[i] <
1643 (trigger_tlv_sz[i] +
1644 sizeof(struct iwl_fw_dbg_trigger_tlv))))
1645 goto out_free_fw;
1646 drv->fw.dbg.trigger_tlv_len[i] =
1647 pieces->dbg_trigger_tlv_len[i];
1648 drv->fw.dbg.trigger_tlv[i] =
1649 kmemdup(pieces->dbg_trigger_tlv[i],
1650 drv->fw.dbg.trigger_tlv_len[i],
1651 GFP_KERNEL);
1652 if (!drv->fw.dbg.trigger_tlv[i])
1653 goto out_free_fw;
1654 }
1655 }
1656
1657 /* Now that we can no longer fail, copy information */
1658
1659 drv->fw.dbg.mem_tlv = pieces->dbg_mem_tlv;
1660 pieces->dbg_mem_tlv = NULL;
1661 drv->fw.dbg.n_mem_tlv = pieces->n_mem_tlv;
1662
1663 /*
1664 * The (size - 16) / 12 formula is based on the information recorded
1665 * for each event, which is of mode 1 (including timestamp) for all
1666 * new microcodes that include this information.
1667 */
1668 fw->init_evtlog_ptr = pieces->init_evtlog_ptr;
1669 if (pieces->init_evtlog_size)
1670 fw->init_evtlog_size = (pieces->init_evtlog_size - 16)/12;
1671 else
1672 fw->init_evtlog_size =
1673 drv->trans->trans_cfg->base_params->max_event_log_size;
1674 fw->init_errlog_ptr = pieces->init_errlog_ptr;
1675 fw->inst_evtlog_ptr = pieces->inst_evtlog_ptr;
1676 if (pieces->inst_evtlog_size)
1677 fw->inst_evtlog_size = (pieces->inst_evtlog_size - 16)/12;
1678 else
1679 fw->inst_evtlog_size =
1680 drv->trans->trans_cfg->base_params->max_event_log_size;
1681 fw->inst_errlog_ptr = pieces->inst_errlog_ptr;
1682
1683 /*
1684 * figure out the offset of chain noise reset and gain commands
1685 * base on the size of standard phy calibration commands table size
1686 */
1687 if (fw->ucode_capa.standard_phy_calibration_size >
1688 IWL_MAX_PHY_CALIBRATE_TBL_SIZE)
1689 fw->ucode_capa.standard_phy_calibration_size =
1690 IWL_MAX_STANDARD_PHY_CALIBRATE_TBL_SIZE;
1691
1692 /* We have our copies now, allow OS release its copies */
1693 release_firmware(ucode_raw);
1694
1695 iwl_dbg_tlv_load_bin(drv->trans->dev, drv->trans);
1696
1697 mutex_lock(&iwlwifi_opmode_table_mtx);
1698 switch (fw->type) {
1699 case IWL_FW_DVM:
1700 op = &iwlwifi_opmode_table[DVM_OP_MODE];
1701 break;
1702 default:
1703 WARN(1, "Invalid fw type %d\n", fw->type);
1704 fallthrough;
1705 case IWL_FW_MVM:
1706 op = &iwlwifi_opmode_table[MVM_OP_MODE];
1707 break;
1708 }
1709
1710 IWL_INFO(drv, "loaded firmware version %s op_mode %s\n",
1711 drv->fw.fw_version, op->name);
1712
1713 /* add this device to the list of devices using this op_mode */
1714 list_add_tail(&drv->list, &op->drv);
1715
1716 if (op->ops) {
1717 drv->op_mode = _iwl_op_mode_start(drv, op);
1718
1719 if (!drv->op_mode) {
1720 mutex_unlock(&iwlwifi_opmode_table_mtx);
1721 goto out_unbind;
1722 }
1723 } else {
1724 load_module = true;
1725 }
1726 mutex_unlock(&iwlwifi_opmode_table_mtx);
1727
1728 /*
1729 * Complete the firmware request last so that
1730 * a driver unbind (stop) doesn't run while we
1731 * are doing the start() above.
1732 */
1733 complete(&drv->request_firmware_complete);
1734
1735 /*
1736 * Load the module last so we don't block anything
1737 * else from proceeding if the module fails to load
1738 * or hangs loading.
1739 */
1740 if (load_module)
1741 request_module("%s", op->name);
1742 failure = false;
1743 goto free;
1744
1745 try_again:
1746 /* try next, if any */
1747 release_firmware(ucode_raw);
1748 if (iwl_request_firmware(drv, false))
1749 goto out_unbind;
1750 goto free;
1751
1752 out_free_fw:
1753 release_firmware(ucode_raw);
1754 out_unbind:
1755 complete(&drv->request_firmware_complete);
1756 device_release_driver(drv->trans->dev);
1757 /* drv has just been freed by the release */
1758 failure = false;
1759 free:
1760 if (failure)
1761 iwl_dealloc_ucode(drv);
1762
1763 if (pieces) {
1764 for (i = 0; i < ARRAY_SIZE(pieces->img); i++)
1765 kfree(pieces->img[i].sec);
1766 kfree(pieces->dbg_mem_tlv);
1767 kfree(pieces);
1768 }
1769 }
1770
iwl_drv_start(struct iwl_trans * trans)1771 struct iwl_drv *iwl_drv_start(struct iwl_trans *trans)
1772 {
1773 struct iwl_drv *drv;
1774 int ret;
1775
1776 drv = kzalloc(sizeof(*drv), GFP_KERNEL);
1777 if (!drv) {
1778 ret = -ENOMEM;
1779 goto err;
1780 }
1781
1782 drv->trans = trans;
1783 drv->dev = trans->dev;
1784
1785 init_completion(&drv->request_firmware_complete);
1786 INIT_LIST_HEAD(&drv->list);
1787
1788 #ifdef CONFIG_IWLWIFI_DEBUGFS
1789 /* Create the device debugfs entries. */
1790 drv->dbgfs_drv = debugfs_create_dir(dev_name(trans->dev),
1791 iwl_dbgfs_root);
1792
1793 /* Create transport layer debugfs dir */
1794 drv->trans->dbgfs_dir = debugfs_create_dir("trans", drv->dbgfs_drv);
1795 #endif
1796
1797 drv->trans->dbg.domains_bitmap = IWL_TRANS_FW_DBG_DOMAIN(drv->trans);
1798
1799 ret = iwl_request_firmware(drv, true);
1800 if (ret) {
1801 IWL_ERR(trans, "Couldn't request the fw\n");
1802 goto err_fw;
1803 }
1804
1805 return drv;
1806
1807 err_fw:
1808 #ifdef CONFIG_IWLWIFI_DEBUGFS
1809 debugfs_remove_recursive(drv->dbgfs_drv);
1810 iwl_dbg_tlv_free(drv->trans);
1811 #endif
1812 kfree(drv);
1813 err:
1814 return ERR_PTR(ret);
1815 }
1816
iwl_drv_stop(struct iwl_drv * drv)1817 void iwl_drv_stop(struct iwl_drv *drv)
1818 {
1819 wait_for_completion(&drv->request_firmware_complete);
1820
1821 _iwl_op_mode_stop(drv);
1822
1823 iwl_dealloc_ucode(drv);
1824
1825 mutex_lock(&iwlwifi_opmode_table_mtx);
1826 /*
1827 * List is empty (this item wasn't added)
1828 * when firmware loading failed -- in that
1829 * case we can't remove it from any list.
1830 */
1831 if (!list_empty(&drv->list))
1832 list_del(&drv->list);
1833 mutex_unlock(&iwlwifi_opmode_table_mtx);
1834
1835 #ifdef CONFIG_IWLWIFI_DEBUGFS
1836 drv->trans->ops->debugfs_cleanup(drv->trans);
1837
1838 debugfs_remove_recursive(drv->dbgfs_drv);
1839 #endif
1840
1841 iwl_dbg_tlv_free(drv->trans);
1842
1843 kfree(drv);
1844 }
1845
1846 #define ENABLE_INI (IWL_DBG_TLV_MAX_PRESET + 1)
1847
1848 /* shared module parameters */
1849 struct iwl_mod_params iwlwifi_mod_params = {
1850 .fw_restart = true,
1851 .bt_coex_active = true,
1852 .power_level = IWL_POWER_INDEX_1,
1853 .uapsd_disable = IWL_DISABLE_UAPSD_BSS | IWL_DISABLE_UAPSD_P2P_CLIENT,
1854 .enable_ini = ENABLE_INI,
1855 /* the rest are 0 by default */
1856 };
1857 IWL_EXPORT_SYMBOL(iwlwifi_mod_params);
1858
iwl_opmode_register(const char * name,const struct iwl_op_mode_ops * ops)1859 int iwl_opmode_register(const char *name, const struct iwl_op_mode_ops *ops)
1860 {
1861 int i;
1862 struct iwl_drv *drv;
1863 struct iwlwifi_opmode_table *op;
1864
1865 mutex_lock(&iwlwifi_opmode_table_mtx);
1866 for (i = 0; i < ARRAY_SIZE(iwlwifi_opmode_table); i++) {
1867 op = &iwlwifi_opmode_table[i];
1868 if (strcmp(op->name, name))
1869 continue;
1870 op->ops = ops;
1871 /* TODO: need to handle exceptional case */
1872 list_for_each_entry(drv, &op->drv, list)
1873 drv->op_mode = _iwl_op_mode_start(drv, op);
1874
1875 mutex_unlock(&iwlwifi_opmode_table_mtx);
1876 return 0;
1877 }
1878 mutex_unlock(&iwlwifi_opmode_table_mtx);
1879 return -EIO;
1880 }
1881 IWL_EXPORT_SYMBOL(iwl_opmode_register);
1882
iwl_opmode_deregister(const char * name)1883 void iwl_opmode_deregister(const char *name)
1884 {
1885 int i;
1886 struct iwl_drv *drv;
1887
1888 mutex_lock(&iwlwifi_opmode_table_mtx);
1889 for (i = 0; i < ARRAY_SIZE(iwlwifi_opmode_table); i++) {
1890 if (strcmp(iwlwifi_opmode_table[i].name, name))
1891 continue;
1892 iwlwifi_opmode_table[i].ops = NULL;
1893
1894 /* call the stop routine for all devices */
1895 list_for_each_entry(drv, &iwlwifi_opmode_table[i].drv, list)
1896 _iwl_op_mode_stop(drv);
1897
1898 mutex_unlock(&iwlwifi_opmode_table_mtx);
1899 return;
1900 }
1901 mutex_unlock(&iwlwifi_opmode_table_mtx);
1902 }
1903 IWL_EXPORT_SYMBOL(iwl_opmode_deregister);
1904
iwl_drv_init(void)1905 static int __init iwl_drv_init(void)
1906 {
1907 int i, err;
1908
1909 for (i = 0; i < ARRAY_SIZE(iwlwifi_opmode_table); i++)
1910 INIT_LIST_HEAD(&iwlwifi_opmode_table[i].drv);
1911
1912 pr_info(DRV_DESCRIPTION "\n");
1913
1914 #ifdef CONFIG_IWLWIFI_DEBUGFS
1915 /* Create the root of iwlwifi debugfs subsystem. */
1916 iwl_dbgfs_root = debugfs_create_dir(DRV_NAME, NULL);
1917 #endif
1918
1919 err = iwl_pci_register_driver();
1920 if (err)
1921 goto cleanup_debugfs;
1922
1923 return 0;
1924
1925 cleanup_debugfs:
1926 #ifdef CONFIG_IWLWIFI_DEBUGFS
1927 debugfs_remove_recursive(iwl_dbgfs_root);
1928 #endif
1929 return err;
1930 }
1931 module_init(iwl_drv_init);
1932
iwl_drv_exit(void)1933 static void __exit iwl_drv_exit(void)
1934 {
1935 iwl_pci_unregister_driver();
1936
1937 #ifdef CONFIG_IWLWIFI_DEBUGFS
1938 debugfs_remove_recursive(iwl_dbgfs_root);
1939 #endif
1940 }
1941 module_exit(iwl_drv_exit);
1942
1943 #ifdef CONFIG_IWLWIFI_DEBUG
1944 module_param_named(debug, iwlwifi_mod_params.debug_level, uint, 0644);
1945 MODULE_PARM_DESC(debug, "debug output mask");
1946 #endif
1947
1948 module_param_named(swcrypto, iwlwifi_mod_params.swcrypto, int, 0444);
1949 MODULE_PARM_DESC(swcrypto, "using crypto in software (default 0 [hardware])");
1950 module_param_named(11n_disable, iwlwifi_mod_params.disable_11n, uint, 0444);
1951 MODULE_PARM_DESC(11n_disable,
1952 "disable 11n functionality, bitmap: 1: full, 2: disable agg TX, 4: disable agg RX, 8 enable agg TX");
1953 module_param_named(amsdu_size, iwlwifi_mod_params.amsdu_size, int, 0444);
1954 MODULE_PARM_DESC(amsdu_size,
1955 "amsdu size 0: 12K for multi Rx queue devices, 2K for AX210 devices, "
1956 "4K for other devices 1:4K 2:8K 3:12K (16K buffers) 4: 2K (default 0)");
1957 module_param_named(fw_restart, iwlwifi_mod_params.fw_restart, bool, 0444);
1958 MODULE_PARM_DESC(fw_restart, "restart firmware in case of error (default true)");
1959
1960 module_param_named(nvm_file, iwlwifi_mod_params.nvm_file, charp, 0444);
1961 MODULE_PARM_DESC(nvm_file, "NVM file name");
1962
1963 module_param_named(uapsd_disable, iwlwifi_mod_params.uapsd_disable, uint, 0644);
1964 MODULE_PARM_DESC(uapsd_disable,
1965 "disable U-APSD functionality bitmap 1: BSS 2: P2P Client (default: 3)");
1966
enable_ini_set(const char * arg,const struct kernel_param * kp)1967 static int enable_ini_set(const char *arg, const struct kernel_param *kp)
1968 {
1969 int ret = 0;
1970 bool res;
1971 __u32 new_enable_ini;
1972
1973 /* in case the argument type is a number */
1974 ret = kstrtou32(arg, 0, &new_enable_ini);
1975 if (!ret) {
1976 if (new_enable_ini > ENABLE_INI) {
1977 pr_err("enable_ini cannot be %d, in range 0-16\n", new_enable_ini);
1978 return -EINVAL;
1979 }
1980 goto out;
1981 }
1982
1983 /* in case the argument type is boolean */
1984 ret = kstrtobool(arg, &res);
1985 if (ret)
1986 return ret;
1987 new_enable_ini = (res ? ENABLE_INI : 0);
1988
1989 out:
1990 iwlwifi_mod_params.enable_ini = new_enable_ini;
1991 return 0;
1992 }
1993
1994 static const struct kernel_param_ops enable_ini_ops = {
1995 .set = enable_ini_set
1996 };
1997
1998 module_param_cb(enable_ini, &enable_ini_ops, &iwlwifi_mod_params.enable_ini, 0644);
1999 MODULE_PARM_DESC(enable_ini,
2000 "0:disable, 1-15:FW_DBG_PRESET Values, 16:enabled without preset value defined,"
2001 "Debug INI TLV FW debug infrastructure (default: 16)");
2002
2003 /*
2004 * set bt_coex_active to true, uCode will do kill/defer
2005 * every time the priority line is asserted (BT is sending signals on the
2006 * priority line in the PCIx).
2007 * set bt_coex_active to false, uCode will ignore the BT activity and
2008 * perform the normal operation
2009 *
2010 * User might experience transmit issue on some platform due to WiFi/BT
2011 * co-exist problem. The possible behaviors are:
2012 * Able to scan and finding all the available AP
2013 * Not able to associate with any AP
2014 * On those platforms, WiFi communication can be restored by set
2015 * "bt_coex_active" module parameter to "false"
2016 *
2017 * default: bt_coex_active = true (BT_COEX_ENABLE)
2018 */
2019 module_param_named(bt_coex_active, iwlwifi_mod_params.bt_coex_active,
2020 bool, 0444);
2021 MODULE_PARM_DESC(bt_coex_active, "enable wifi/bt co-exist (default: enable)");
2022
2023 module_param_named(led_mode, iwlwifi_mod_params.led_mode, int, 0444);
2024 MODULE_PARM_DESC(led_mode, "0=system default, "
2025 "1=On(RF On)/Off(RF Off), 2=blinking, 3=Off (default: 0)");
2026
2027 module_param_named(power_save, iwlwifi_mod_params.power_save, bool, 0444);
2028 MODULE_PARM_DESC(power_save,
2029 "enable WiFi power management (default: disable)");
2030
2031 module_param_named(power_level, iwlwifi_mod_params.power_level, int, 0444);
2032 MODULE_PARM_DESC(power_level,
2033 "default power save level (range from 1 - 5, default: 1)");
2034
2035 module_param_named(disable_11ac, iwlwifi_mod_params.disable_11ac, bool, 0444);
2036 MODULE_PARM_DESC(disable_11ac, "Disable VHT capabilities (default: false)");
2037
2038 module_param_named(remove_when_gone,
2039 iwlwifi_mod_params.remove_when_gone, bool,
2040 0444);
2041 MODULE_PARM_DESC(remove_when_gone,
2042 "Remove dev from PCIe bus if it is deemed inaccessible (default: false)");
2043
2044 module_param_named(disable_11ax, iwlwifi_mod_params.disable_11ax, bool,
2045 S_IRUGO);
2046 MODULE_PARM_DESC(disable_11ax, "Disable HE capabilities (default: false)");
2047
2048 module_param_named(disable_11be, iwlwifi_mod_params.disable_11be, bool, 0444);
2049 MODULE_PARM_DESC(disable_11be, "Disable EHT capabilities (default: false)");
2050
