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 #if defined(__FreeBSD__)
8 #define LINUXKPI_PARAM_PREFIX iwlwifi_
9 #endif
10 #include <linux/completion.h>
11 #include <linux/dma-mapping.h>
12 #include <linux/firmware.h>
13 #include <linux/module.h>
14 #include <linux/vmalloc.h>
15
16 #include "iwl-drv.h"
17 #include "iwl-csr.h"
18 #include "iwl-debug.h"
19 #include "iwl-trans.h"
20 #include "iwl-op-mode.h"
21 #include "iwl-agn-hw.h"
22 #include "fw/img.h"
23 #include "iwl-dbg-tlv.h"
24 #include "iwl-config.h"
25 #include "iwl-modparams.h"
26 #include "fw/api/alive.h"
27 #include "fw/api/mac.h"
28
29 /******************************************************************************
30 *
31 * module boiler plate
32 *
33 ******************************************************************************/
34
35 #if defined(__linux__)
36 #define DRV_DESCRIPTION "Intel(R) Wireless WiFi driver for Linux"
37 MODULE_LICENSE("GPL");
38 #elif defined(__FreeBSD__)
39 #define DRV_DESCRIPTION "Intel(R) Wireless WiFi based driver for FreeBSD"
40 MODULE_LICENSE("BSD");
41 MODULE_VERSION(if_iwlwifi, 1);
42 MODULE_DEPEND(if_iwlwifi, linuxkpi, 1, 1, 1);
43 MODULE_DEPEND(if_iwlwifi, linuxkpi_wlan, 1, 1, 1);
44 #endif
45 MODULE_DESCRIPTION(DRV_DESCRIPTION);
46
47 #ifdef CONFIG_IWLWIFI_DEBUGFS
48 static struct dentry *iwl_dbgfs_root;
49 #endif
50
51 /**
52 * struct iwl_drv - drv common data
53 * @list: list of drv structures using this opmode
54 * @fw: the iwl_fw structure
55 * @op_mode: the running op_mode
56 * @trans: transport layer
57 * @dev: for debug prints only
58 * @fw_index: firmware revision to try loading
59 * @firmware_name: composite filename of ucode file to load
60 * @request_firmware_complete: the firmware has been obtained from user space
61 * @dbgfs_drv: debugfs root directory entry
62 * @dbgfs_trans: debugfs transport directory entry
63 * @dbgfs_op_mode: debugfs op_mode directory entry
64 */
65 struct iwl_drv {
66 struct list_head list;
67 struct iwl_fw fw;
68
69 struct iwl_op_mode *op_mode;
70 struct iwl_trans *trans;
71 struct device *dev;
72
73 int fw_index; /* firmware we're trying to load */
74 char firmware_name[64]; /* name of firmware file to load */
75
76 struct completion request_firmware_complete;
77
78 #ifdef CONFIG_IWLWIFI_DEBUGFS
79 struct dentry *dbgfs_drv;
80 struct dentry *dbgfs_trans;
81 struct dentry *dbgfs_op_mode;
82 #endif
83 };
84
85 enum {
86 DVM_OP_MODE,
87 MVM_OP_MODE,
88 };
89
90 /* Protects the table contents, i.e. the ops pointer & drv list */
91 static DEFINE_MUTEX(iwlwifi_opmode_table_mtx);
92 static struct iwlwifi_opmode_table {
93 const char *name; /* name: iwldvm, iwlmvm, etc */
94 const struct iwl_op_mode_ops *ops; /* pointer to op_mode ops */
95 struct list_head drv; /* list of devices using this op_mode */
96 } iwlwifi_opmode_table[] = { /* ops set when driver is initialized */
97 [DVM_OP_MODE] = { .name = "iwldvm", .ops = NULL },
98 [MVM_OP_MODE] = { .name = "iwlmvm", .ops = NULL },
99 };
100
101 #define IWL_DEFAULT_SCAN_CHANNELS 40
102
103 /*
104 * struct fw_sec: Just for the image parsing process.
105 * For the fw storage we are using struct fw_desc.
106 */
107 struct fw_sec {
108 const void *data; /* the sec data */
109 size_t size; /* section size */
110 u32 offset; /* offset of writing in the device */
111 };
112
iwl_free_fw_desc(struct iwl_drv * drv,struct fw_desc * desc)113 static void iwl_free_fw_desc(struct iwl_drv *drv, struct fw_desc *desc)
114 {
115 vfree(desc->data);
116 desc->data = NULL;
117 desc->len = 0;
118 }
119
iwl_free_fw_img(struct iwl_drv * drv,struct fw_img * img)120 static void iwl_free_fw_img(struct iwl_drv *drv, struct fw_img *img)
121 {
122 int i;
123 for (i = 0; i < img->num_sec; i++)
124 iwl_free_fw_desc(drv, &img->sec[i]);
125 kfree(img->sec);
126 }
127
iwl_dealloc_ucode(struct iwl_drv * drv)128 static void iwl_dealloc_ucode(struct iwl_drv *drv)
129 {
130 int i;
131
132 kfree(drv->fw.dbg.dest_tlv);
133 for (i = 0; i < ARRAY_SIZE(drv->fw.dbg.conf_tlv); i++)
134 kfree(drv->fw.dbg.conf_tlv[i]);
135 for (i = 0; i < ARRAY_SIZE(drv->fw.dbg.trigger_tlv); i++)
136 kfree(drv->fw.dbg.trigger_tlv[i]);
137 kfree(drv->fw.dbg.mem_tlv);
138 kfree(drv->fw.iml);
139 kfree(drv->fw.ucode_capa.cmd_versions);
140 kfree(drv->fw.phy_integration_ver);
141
142 for (i = 0; i < IWL_UCODE_TYPE_MAX; i++)
143 iwl_free_fw_img(drv, drv->fw.img + i);
144
145 /* clear the data for the aborted load case */
146 memset(&drv->fw, 0, sizeof(drv->fw));
147 }
148
iwl_alloc_fw_desc(struct iwl_drv * drv,struct fw_desc * desc,struct fw_sec * sec)149 static int iwl_alloc_fw_desc(struct iwl_drv *drv, struct fw_desc *desc,
150 struct fw_sec *sec)
151 {
152 void *data;
153
154 desc->data = NULL;
155
156 if (!sec || !sec->size)
157 return -EINVAL;
158
159 data = vmalloc(sec->size);
160 if (!data)
161 return -ENOMEM;
162
163 desc->len = sec->size;
164 desc->offset = sec->offset;
165 memcpy(data, sec->data, desc->len);
166 desc->data = data;
167
168 return 0;
169 }
170
171 static void iwl_req_fw_callback(const struct firmware *ucode_raw,
172 void *context);
173
iwl_request_firmware(struct iwl_drv * drv,bool first)174 static int iwl_request_firmware(struct iwl_drv *drv, bool first)
175 {
176 const struct iwl_cfg *cfg = drv->trans->cfg;
177 char tag[8];
178
179 if (drv->trans->trans_cfg->device_family == IWL_DEVICE_FAMILY_9000 &&
180 (drv->trans->hw_rev_step != SILICON_B_STEP &&
181 drv->trans->hw_rev_step != SILICON_C_STEP)) {
182 IWL_ERR(drv,
183 "Only HW steps B and C are currently supported (0x%0x)\n",
184 drv->trans->hw_rev);
185 return -EINVAL;
186 }
187
188 if (first) {
189 drv->fw_index = cfg->ucode_api_max;
190 sprintf(tag, "%d", drv->fw_index);
191 } else {
192 drv->fw_index--;
193 sprintf(tag, "%d", drv->fw_index);
194 }
195
196 if (drv->fw_index < cfg->ucode_api_min) {
197 IWL_ERR(drv, "no suitable firmware found!\n");
198
199 if (cfg->ucode_api_min == cfg->ucode_api_max) {
200 IWL_ERR(drv, "%s%d is required\n", cfg->fw_name_pre,
201 cfg->ucode_api_max);
202 } else {
203 IWL_ERR(drv, "minimum version required: %s%d\n",
204 cfg->fw_name_pre, cfg->ucode_api_min);
205 IWL_ERR(drv, "maximum version supported: %s%d\n",
206 cfg->fw_name_pre, cfg->ucode_api_max);
207 }
208
209 IWL_ERR(drv,
210 "check git://git.kernel.org/pub/scm/linux/kernel/git/firmware/linux-firmware.git\n");
211 return -ENOENT;
212 }
213
214 snprintf(drv->firmware_name, sizeof(drv->firmware_name), "%s%s.ucode",
215 cfg->fw_name_pre, tag);
216
217 IWL_DEBUG_FW_INFO(drv, "attempting to load firmware '%s'\n",
218 drv->firmware_name);
219
220 return request_firmware_nowait(THIS_MODULE, 1, drv->firmware_name,
221 drv->trans->dev,
222 GFP_KERNEL, drv, iwl_req_fw_callback);
223 }
224
225 struct fw_img_parsing {
226 struct fw_sec *sec;
227 int sec_counter;
228 };
229
230 /*
231 * struct fw_sec_parsing: to extract fw section and it's offset from tlv
232 */
233 struct fw_sec_parsing {
234 __le32 offset;
235 const u8 data[];
236 } __packed;
237
238 /**
239 * struct iwl_tlv_calib_data - parse the default calib data from TLV
240 *
241 * @ucode_type: the uCode to which the following default calib relates.
242 * @calib: default calibrations.
243 */
244 struct iwl_tlv_calib_data {
245 __le32 ucode_type;
246 struct iwl_tlv_calib_ctrl calib;
247 } __packed;
248
249 struct iwl_firmware_pieces {
250 struct fw_img_parsing img[IWL_UCODE_TYPE_MAX];
251
252 u32 init_evtlog_ptr, init_evtlog_size, init_errlog_ptr;
253 u32 inst_evtlog_ptr, inst_evtlog_size, inst_errlog_ptr;
254
255 /* FW debug data parsed for driver usage */
256 bool dbg_dest_tlv_init;
257 const u8 *dbg_dest_ver;
258 union {
259 const struct iwl_fw_dbg_dest_tlv *dbg_dest_tlv;
260 const struct iwl_fw_dbg_dest_tlv_v1 *dbg_dest_tlv_v1;
261 };
262 const struct iwl_fw_dbg_conf_tlv *dbg_conf_tlv[FW_DBG_CONF_MAX];
263 size_t dbg_conf_tlv_len[FW_DBG_CONF_MAX];
264 const struct iwl_fw_dbg_trigger_tlv *dbg_trigger_tlv[FW_DBG_TRIGGER_MAX];
265 size_t dbg_trigger_tlv_len[FW_DBG_TRIGGER_MAX];
266 struct iwl_fw_dbg_mem_seg_tlv *dbg_mem_tlv;
267 size_t n_mem_tlv;
268 };
269
270 /*
271 * These functions are just to extract uCode section data from the pieces
272 * structure.
273 */
get_sec(struct iwl_firmware_pieces * pieces,enum iwl_ucode_type type,int sec)274 static struct fw_sec *get_sec(struct iwl_firmware_pieces *pieces,
275 enum iwl_ucode_type type,
276 int sec)
277 {
278 return &pieces->img[type].sec[sec];
279 }
280
alloc_sec_data(struct iwl_firmware_pieces * pieces,enum iwl_ucode_type type,int sec)281 static void alloc_sec_data(struct iwl_firmware_pieces *pieces,
282 enum iwl_ucode_type type,
283 int sec)
284 {
285 struct fw_img_parsing *img = &pieces->img[type];
286 struct fw_sec *sec_memory;
287 int size = sec + 1;
288 size_t alloc_size = sizeof(*img->sec) * size;
289
290 if (img->sec && img->sec_counter >= size)
291 return;
292
293 sec_memory = krealloc(img->sec, alloc_size, GFP_KERNEL);
294 if (!sec_memory)
295 return;
296
297 img->sec = sec_memory;
298 img->sec_counter = size;
299 }
300
set_sec_data(struct iwl_firmware_pieces * pieces,enum iwl_ucode_type type,int sec,const void * data)301 static void set_sec_data(struct iwl_firmware_pieces *pieces,
302 enum iwl_ucode_type type,
303 int sec,
304 const void *data)
305 {
306 alloc_sec_data(pieces, type, sec);
307
308 pieces->img[type].sec[sec].data = data;
309 }
310
set_sec_size(struct iwl_firmware_pieces * pieces,enum iwl_ucode_type type,int sec,size_t size)311 static void set_sec_size(struct iwl_firmware_pieces *pieces,
312 enum iwl_ucode_type type,
313 int sec,
314 size_t size)
315 {
316 alloc_sec_data(pieces, type, sec);
317
318 pieces->img[type].sec[sec].size = size;
319 }
320
get_sec_size(struct iwl_firmware_pieces * pieces,enum iwl_ucode_type type,int sec)321 static size_t get_sec_size(struct iwl_firmware_pieces *pieces,
322 enum iwl_ucode_type type,
323 int sec)
324 {
325 return pieces->img[type].sec[sec].size;
326 }
327
set_sec_offset(struct iwl_firmware_pieces * pieces,enum iwl_ucode_type type,int sec,u32 offset)328 static void set_sec_offset(struct iwl_firmware_pieces *pieces,
329 enum iwl_ucode_type type,
330 int sec,
331 u32 offset)
332 {
333 alloc_sec_data(pieces, type, sec);
334
335 pieces->img[type].sec[sec].offset = offset;
336 }
337
iwl_store_cscheme(struct iwl_fw * fw,const u8 * data,const u32 len)338 static int iwl_store_cscheme(struct iwl_fw *fw, const u8 *data, const u32 len)
339 {
340 int i, j;
341 const struct iwl_fw_cscheme_list *l =
342 (const struct iwl_fw_cscheme_list *)data;
343 const struct iwl_fw_cipher_scheme *fwcs;
344
345 if (len < sizeof(*l) ||
346 len < sizeof(l->size) + l->size * sizeof(l->cs[0]))
347 return -EINVAL;
348
349 for (i = 0, j = 0; i < IWL_UCODE_MAX_CS && i < l->size; i++) {
350 fwcs = &l->cs[j];
351
352 /* we skip schemes with zero cipher suite selector */
353 if (!fwcs->cipher)
354 continue;
355
356 fw->cs[j++] = *fwcs;
357 }
358
359 return 0;
360 }
361
362 /*
363 * Gets uCode section from tlv.
364 */
iwl_store_ucode_sec(struct iwl_firmware_pieces * pieces,const void * data,enum iwl_ucode_type type,int size)365 static int iwl_store_ucode_sec(struct iwl_firmware_pieces *pieces,
366 const void *data, enum iwl_ucode_type type,
367 int size)
368 {
369 struct fw_img_parsing *img;
370 struct fw_sec *sec;
371 const struct fw_sec_parsing *sec_parse;
372 size_t alloc_size;
373
374 if (WARN_ON(!pieces || !data || type >= IWL_UCODE_TYPE_MAX))
375 return -1;
376
377 sec_parse = (const struct fw_sec_parsing *)data;
378
379 img = &pieces->img[type];
380
381 alloc_size = sizeof(*img->sec) * (img->sec_counter + 1);
382 sec = krealloc(img->sec, alloc_size, GFP_KERNEL);
383 if (!sec)
384 return -ENOMEM;
385 img->sec = sec;
386
387 sec = &img->sec[img->sec_counter];
388
389 sec->offset = le32_to_cpu(sec_parse->offset);
390 sec->data = sec_parse->data;
391 sec->size = size - sizeof(sec_parse->offset);
392
393 ++img->sec_counter;
394
395 return 0;
396 }
397
iwl_set_default_calib(struct iwl_drv * drv,const u8 * data)398 static int iwl_set_default_calib(struct iwl_drv *drv, const u8 *data)
399 {
400 const struct iwl_tlv_calib_data *def_calib =
401 (const struct iwl_tlv_calib_data *)data;
402 u32 ucode_type = le32_to_cpu(def_calib->ucode_type);
403 if (ucode_type >= IWL_UCODE_TYPE_MAX) {
404 IWL_ERR(drv, "Wrong ucode_type %u for default calibration.\n",
405 ucode_type);
406 return -EINVAL;
407 }
408 drv->fw.default_calib[ucode_type].flow_trigger =
409 def_calib->calib.flow_trigger;
410 drv->fw.default_calib[ucode_type].event_trigger =
411 def_calib->calib.event_trigger;
412
413 return 0;
414 }
415
iwl_set_ucode_api_flags(struct iwl_drv * drv,const u8 * data,struct iwl_ucode_capabilities * capa)416 static void iwl_set_ucode_api_flags(struct iwl_drv *drv, const u8 *data,
417 struct iwl_ucode_capabilities *capa)
418 {
419 const struct iwl_ucode_api *ucode_api = (const void *)data;
420 u32 api_index = le32_to_cpu(ucode_api->api_index);
421 u32 api_flags = le32_to_cpu(ucode_api->api_flags);
422 int i;
423
424 if (api_index >= DIV_ROUND_UP(NUM_IWL_UCODE_TLV_API, 32)) {
425 IWL_WARN(drv,
426 "api flags index %d larger than supported by driver\n",
427 api_index);
428 return;
429 }
430
431 for (i = 0; i < 32; i++) {
432 if (api_flags & BIT(i))
433 __set_bit(i + 32 * api_index, capa->_api);
434 }
435 }
436
iwl_set_ucode_capabilities(struct iwl_drv * drv,const u8 * data,struct iwl_ucode_capabilities * capa)437 static void iwl_set_ucode_capabilities(struct iwl_drv *drv, const u8 *data,
438 struct iwl_ucode_capabilities *capa)
439 {
440 const struct iwl_ucode_capa *ucode_capa = (const void *)data;
441 u32 api_index = le32_to_cpu(ucode_capa->api_index);
442 u32 api_flags = le32_to_cpu(ucode_capa->api_capa);
443 int i;
444
445 if (api_index >= DIV_ROUND_UP(NUM_IWL_UCODE_TLV_CAPA, 32)) {
446 IWL_WARN(drv,
447 "capa flags index %d larger than supported by driver\n",
448 api_index);
449 return;
450 }
451
452 for (i = 0; i < 32; i++) {
453 if (api_flags & BIT(i))
454 __set_bit(i + 32 * api_index, capa->_capa);
455 }
456 }
457
iwl_reduced_fw_name(struct iwl_drv * drv)458 static const char *iwl_reduced_fw_name(struct iwl_drv *drv)
459 {
460 const char *name = drv->firmware_name;
461
462 if (strncmp(name, "iwlwifi-", 8) == 0)
463 name += 8;
464
465 return name;
466 }
467
iwl_parse_v1_v2_firmware(struct iwl_drv * drv,const struct firmware * ucode_raw,struct iwl_firmware_pieces * pieces)468 static int iwl_parse_v1_v2_firmware(struct iwl_drv *drv,
469 const struct firmware *ucode_raw,
470 struct iwl_firmware_pieces *pieces)
471 {
472 const struct iwl_ucode_header *ucode = (const void *)ucode_raw->data;
473 u32 api_ver, hdr_size, build;
474 char buildstr[25];
475 const u8 *src;
476
477 drv->fw.ucode_ver = le32_to_cpu(ucode->ver);
478 api_ver = IWL_UCODE_API(drv->fw.ucode_ver);
479
480 switch (api_ver) {
481 default:
482 hdr_size = 28;
483 if (ucode_raw->size < hdr_size) {
484 IWL_ERR(drv, "File size too small!\n");
485 return -EINVAL;
486 }
487 build = le32_to_cpu(ucode->u.v2.build);
488 set_sec_size(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_INST,
489 le32_to_cpu(ucode->u.v2.inst_size));
490 set_sec_size(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_DATA,
491 le32_to_cpu(ucode->u.v2.data_size));
492 set_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_INST,
493 le32_to_cpu(ucode->u.v2.init_size));
494 set_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_DATA,
495 le32_to_cpu(ucode->u.v2.init_data_size));
496 src = ucode->u.v2.data;
497 break;
498 case 0:
499 case 1:
500 case 2:
501 hdr_size = 24;
502 if (ucode_raw->size < hdr_size) {
503 IWL_ERR(drv, "File size too small!\n");
504 return -EINVAL;
505 }
506 build = 0;
507 set_sec_size(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_INST,
508 le32_to_cpu(ucode->u.v1.inst_size));
509 set_sec_size(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_DATA,
510 le32_to_cpu(ucode->u.v1.data_size));
511 set_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_INST,
512 le32_to_cpu(ucode->u.v1.init_size));
513 set_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_DATA,
514 le32_to_cpu(ucode->u.v1.init_data_size));
515 src = ucode->u.v1.data;
516 break;
517 }
518
519 if (build)
520 sprintf(buildstr, " build %u", build);
521 else
522 buildstr[0] = '\0';
523
524 snprintf(drv->fw.fw_version,
525 sizeof(drv->fw.fw_version),
526 "%u.%u.%u.%u%s %s",
527 IWL_UCODE_MAJOR(drv->fw.ucode_ver),
528 IWL_UCODE_MINOR(drv->fw.ucode_ver),
529 IWL_UCODE_API(drv->fw.ucode_ver),
530 IWL_UCODE_SERIAL(drv->fw.ucode_ver),
531 buildstr, iwl_reduced_fw_name(drv));
532
533 /* Verify size of file vs. image size info in file's header */
534
535 if (ucode_raw->size != hdr_size +
536 get_sec_size(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_INST) +
537 get_sec_size(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_DATA) +
538 get_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_INST) +
539 get_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_DATA)) {
540
541 IWL_ERR(drv,
542 "uCode file size %d does not match expected size\n",
543 (int)ucode_raw->size);
544 return -EINVAL;
545 }
546
547
548 set_sec_data(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_INST, src);
549 src += get_sec_size(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_INST);
550 set_sec_offset(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_INST,
551 IWLAGN_RTC_INST_LOWER_BOUND);
552 set_sec_data(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_DATA, src);
553 src += get_sec_size(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_DATA);
554 set_sec_offset(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_DATA,
555 IWLAGN_RTC_DATA_LOWER_BOUND);
556 set_sec_data(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_INST, src);
557 src += get_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_INST);
558 set_sec_offset(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_INST,
559 IWLAGN_RTC_INST_LOWER_BOUND);
560 set_sec_data(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_DATA, src);
561 src += get_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_DATA);
562 set_sec_offset(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_DATA,
563 IWLAGN_RTC_DATA_LOWER_BOUND);
564 return 0;
565 }
566
iwl_drv_set_dump_exclude(struct iwl_drv * drv,enum iwl_ucode_tlv_type tlv_type,const void * tlv_data,u32 tlv_len)567 static void iwl_drv_set_dump_exclude(struct iwl_drv *drv,
568 enum iwl_ucode_tlv_type tlv_type,
569 const void *tlv_data, u32 tlv_len)
570 {
571 const struct iwl_fw_dump_exclude *fw = tlv_data;
572 struct iwl_dump_exclude *excl;
573
574 if (tlv_len < sizeof(*fw))
575 return;
576
577 if (tlv_type == IWL_UCODE_TLV_SEC_TABLE_ADDR) {
578 excl = &drv->fw.dump_excl[0];
579
580 /* second time we find this, it's for WoWLAN */
581 if (excl->addr)
582 excl = &drv->fw.dump_excl_wowlan[0];
583 } else if (fw_has_capa(&drv->fw.ucode_capa,
584 IWL_UCODE_TLV_CAPA_CNSLDTD_D3_D0_IMG)) {
585 /* IWL_UCODE_TLV_D3_KEK_KCK_ADDR is regular image */
586 excl = &drv->fw.dump_excl[0];
587 } else {
588 /* IWL_UCODE_TLV_D3_KEK_KCK_ADDR is WoWLAN image */
589 excl = &drv->fw.dump_excl_wowlan[0];
590 }
591
592 if (excl->addr)
593 excl++;
594
595 if (excl->addr) {
596 IWL_DEBUG_FW_INFO(drv, "found too many excludes in fw file\n");
597 return;
598 }
599
600 excl->addr = le32_to_cpu(fw->addr) & ~FW_ADDR_CACHE_CONTROL;
601 excl->size = le32_to_cpu(fw->size);
602 }
603
iwl_parse_dbg_tlv_assert_tables(struct iwl_drv * drv,const struct iwl_ucode_tlv * tlv)604 static void iwl_parse_dbg_tlv_assert_tables(struct iwl_drv *drv,
605 const struct iwl_ucode_tlv *tlv)
606 {
607 const struct iwl_fw_ini_region_tlv *region;
608 u32 length = le32_to_cpu(tlv->length);
609 u32 addr;
610
611 if (length < offsetof(typeof(*region), special_mem) +
612 sizeof(region->special_mem))
613 return;
614
615 region = (const void *)tlv->data;
616 addr = le32_to_cpu(region->special_mem.base_addr);
617 addr += le32_to_cpu(region->special_mem.offset);
618 addr &= ~FW_ADDR_CACHE_CONTROL;
619
620 if (region->type != IWL_FW_INI_REGION_SPECIAL_DEVICE_MEMORY)
621 return;
622
623 switch (region->sub_type) {
624 case IWL_FW_INI_REGION_DEVICE_MEMORY_SUBTYPE_UMAC_ERROR_TABLE:
625 drv->trans->dbg.umac_error_event_table = addr;
626 drv->trans->dbg.error_event_table_tlv_status |=
627 IWL_ERROR_EVENT_TABLE_UMAC;
628 break;
629 case IWL_FW_INI_REGION_DEVICE_MEMORY_SUBTYPE_LMAC_1_ERROR_TABLE:
630 drv->trans->dbg.lmac_error_event_table[0] = addr;
631 drv->trans->dbg.error_event_table_tlv_status |=
632 IWL_ERROR_EVENT_TABLE_LMAC1;
633 break;
634 case IWL_FW_INI_REGION_DEVICE_MEMORY_SUBTYPE_LMAC_2_ERROR_TABLE:
635 drv->trans->dbg.lmac_error_event_table[1] = addr;
636 drv->trans->dbg.error_event_table_tlv_status |=
637 IWL_ERROR_EVENT_TABLE_LMAC2;
638 break;
639 case IWL_FW_INI_REGION_DEVICE_MEMORY_SUBTYPE_TCM_1_ERROR_TABLE:
640 drv->trans->dbg.tcm_error_event_table[0] = addr;
641 drv->trans->dbg.error_event_table_tlv_status |=
642 IWL_ERROR_EVENT_TABLE_TCM1;
643 break;
644 case IWL_FW_INI_REGION_DEVICE_MEMORY_SUBTYPE_TCM_2_ERROR_TABLE:
645 drv->trans->dbg.tcm_error_event_table[1] = addr;
646 drv->trans->dbg.error_event_table_tlv_status |=
647 IWL_ERROR_EVENT_TABLE_TCM2;
648 break;
649 case IWL_FW_INI_REGION_DEVICE_MEMORY_SUBTYPE_RCM_1_ERROR_TABLE:
650 drv->trans->dbg.rcm_error_event_table[0] = addr;
651 drv->trans->dbg.error_event_table_tlv_status |=
652 IWL_ERROR_EVENT_TABLE_RCM1;
653 break;
654 case IWL_FW_INI_REGION_DEVICE_MEMORY_SUBTYPE_RCM_2_ERROR_TABLE:
655 drv->trans->dbg.rcm_error_event_table[1] = addr;
656 drv->trans->dbg.error_event_table_tlv_status |=
657 IWL_ERROR_EVENT_TABLE_RCM2;
658 break;
659 default:
660 break;
661 }
662 }
663
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)664 static int iwl_parse_tlv_firmware(struct iwl_drv *drv,
665 const struct firmware *ucode_raw,
666 struct iwl_firmware_pieces *pieces,
667 struct iwl_ucode_capabilities *capa,
668 bool *usniffer_images)
669 {
670 const struct iwl_tlv_ucode_header *ucode = (const void *)ucode_raw->data;
671 const struct iwl_ucode_tlv *tlv;
672 size_t len = ucode_raw->size;
673 const u8 *data;
674 u32 tlv_len;
675 u32 usniffer_img;
676 enum iwl_ucode_tlv_type tlv_type;
677 const u8 *tlv_data;
678 char buildstr[25];
679 u32 build, paging_mem_size;
680 int num_of_cpus;
681 bool usniffer_req = false;
682
683 if (len < sizeof(*ucode)) {
684 IWL_ERR(drv, "uCode has invalid length: %zd\n", len);
685 return -EINVAL;
686 }
687
688 if (ucode->magic != cpu_to_le32(IWL_TLV_UCODE_MAGIC)) {
689 IWL_ERR(drv, "invalid uCode magic: 0X%x\n",
690 le32_to_cpu(ucode->magic));
691 return -EINVAL;
692 }
693
694 drv->fw.ucode_ver = le32_to_cpu(ucode->ver);
695 memcpy(drv->fw.human_readable, ucode->human_readable,
696 sizeof(drv->fw.human_readable));
697 build = le32_to_cpu(ucode->build);
698
699 if (build)
700 sprintf(buildstr, " build %u", build);
701 else
702 buildstr[0] = '\0';
703
704 snprintf(drv->fw.fw_version,
705 sizeof(drv->fw.fw_version),
706 "%u.%u.%u.%u%s %s",
707 IWL_UCODE_MAJOR(drv->fw.ucode_ver),
708 IWL_UCODE_MINOR(drv->fw.ucode_ver),
709 IWL_UCODE_API(drv->fw.ucode_ver),
710 IWL_UCODE_SERIAL(drv->fw.ucode_ver),
711 buildstr, iwl_reduced_fw_name(drv));
712
713 data = ucode->data;
714
715 len -= sizeof(*ucode);
716
717 while (len >= sizeof(*tlv)) {
718 len -= sizeof(*tlv);
719
720 tlv = (const void *)data;
721 tlv_len = le32_to_cpu(tlv->length);
722 tlv_type = le32_to_cpu(tlv->type);
723 tlv_data = tlv->data;
724
725 if (len < tlv_len) {
726 IWL_ERR(drv, "invalid TLV len: %zd/%u\n",
727 len, tlv_len);
728 return -EINVAL;
729 }
730 len -= ALIGN(tlv_len, 4);
731 data += sizeof(*tlv) + ALIGN(tlv_len, 4);
732
733 switch (tlv_type) {
734 case IWL_UCODE_TLV_INST:
735 set_sec_data(pieces, IWL_UCODE_REGULAR,
736 IWL_UCODE_SECTION_INST, tlv_data);
737 set_sec_size(pieces, IWL_UCODE_REGULAR,
738 IWL_UCODE_SECTION_INST, tlv_len);
739 set_sec_offset(pieces, IWL_UCODE_REGULAR,
740 IWL_UCODE_SECTION_INST,
741 IWLAGN_RTC_INST_LOWER_BOUND);
742 break;
743 case IWL_UCODE_TLV_DATA:
744 set_sec_data(pieces, IWL_UCODE_REGULAR,
745 IWL_UCODE_SECTION_DATA, tlv_data);
746 set_sec_size(pieces, IWL_UCODE_REGULAR,
747 IWL_UCODE_SECTION_DATA, tlv_len);
748 set_sec_offset(pieces, IWL_UCODE_REGULAR,
749 IWL_UCODE_SECTION_DATA,
750 IWLAGN_RTC_DATA_LOWER_BOUND);
751 break;
752 case IWL_UCODE_TLV_INIT:
753 set_sec_data(pieces, IWL_UCODE_INIT,
754 IWL_UCODE_SECTION_INST, tlv_data);
755 set_sec_size(pieces, IWL_UCODE_INIT,
756 IWL_UCODE_SECTION_INST, tlv_len);
757 set_sec_offset(pieces, IWL_UCODE_INIT,
758 IWL_UCODE_SECTION_INST,
759 IWLAGN_RTC_INST_LOWER_BOUND);
760 break;
761 case IWL_UCODE_TLV_INIT_DATA:
762 set_sec_data(pieces, IWL_UCODE_INIT,
763 IWL_UCODE_SECTION_DATA, tlv_data);
764 set_sec_size(pieces, IWL_UCODE_INIT,
765 IWL_UCODE_SECTION_DATA, tlv_len);
766 set_sec_offset(pieces, IWL_UCODE_INIT,
767 IWL_UCODE_SECTION_DATA,
768 IWLAGN_RTC_DATA_LOWER_BOUND);
769 break;
770 case IWL_UCODE_TLV_BOOT:
771 IWL_ERR(drv, "Found unexpected BOOT ucode\n");
772 break;
773 case IWL_UCODE_TLV_PROBE_MAX_LEN:
774 if (tlv_len != sizeof(u32))
775 goto invalid_tlv_len;
776 capa->max_probe_length =
777 le32_to_cpup((const __le32 *)tlv_data);
778 break;
779 case IWL_UCODE_TLV_PAN:
780 if (tlv_len)
781 goto invalid_tlv_len;
782 capa->flags |= IWL_UCODE_TLV_FLAGS_PAN;
783 break;
784 case IWL_UCODE_TLV_FLAGS:
785 /* must be at least one u32 */
786 if (tlv_len < sizeof(u32))
787 goto invalid_tlv_len;
788 /* and a proper number of u32s */
789 if (tlv_len % sizeof(u32))
790 goto invalid_tlv_len;
791 /*
792 * This driver only reads the first u32 as
793 * right now no more features are defined,
794 * if that changes then either the driver
795 * will not work with the new firmware, or
796 * it'll not take advantage of new features.
797 */
798 capa->flags = le32_to_cpup((const __le32 *)tlv_data);
799 break;
800 case IWL_UCODE_TLV_API_CHANGES_SET:
801 if (tlv_len != sizeof(struct iwl_ucode_api))
802 goto invalid_tlv_len;
803 iwl_set_ucode_api_flags(drv, tlv_data, capa);
804 break;
805 case IWL_UCODE_TLV_ENABLED_CAPABILITIES:
806 if (tlv_len != sizeof(struct iwl_ucode_capa))
807 goto invalid_tlv_len;
808 iwl_set_ucode_capabilities(drv, tlv_data, capa);
809 break;
810 case IWL_UCODE_TLV_INIT_EVTLOG_PTR:
811 if (tlv_len != sizeof(u32))
812 goto invalid_tlv_len;
813 pieces->init_evtlog_ptr =
814 le32_to_cpup((const __le32 *)tlv_data);
815 break;
816 case IWL_UCODE_TLV_INIT_EVTLOG_SIZE:
817 if (tlv_len != sizeof(u32))
818 goto invalid_tlv_len;
819 pieces->init_evtlog_size =
820 le32_to_cpup((const __le32 *)tlv_data);
821 break;
822 case IWL_UCODE_TLV_INIT_ERRLOG_PTR:
823 if (tlv_len != sizeof(u32))
824 goto invalid_tlv_len;
825 pieces->init_errlog_ptr =
826 le32_to_cpup((const __le32 *)tlv_data);
827 break;
828 case IWL_UCODE_TLV_RUNT_EVTLOG_PTR:
829 if (tlv_len != sizeof(u32))
830 goto invalid_tlv_len;
831 pieces->inst_evtlog_ptr =
832 le32_to_cpup((const __le32 *)tlv_data);
833 break;
834 case IWL_UCODE_TLV_RUNT_EVTLOG_SIZE:
835 if (tlv_len != sizeof(u32))
836 goto invalid_tlv_len;
837 pieces->inst_evtlog_size =
838 le32_to_cpup((const __le32 *)tlv_data);
839 break;
840 case IWL_UCODE_TLV_RUNT_ERRLOG_PTR:
841 if (tlv_len != sizeof(u32))
842 goto invalid_tlv_len;
843 pieces->inst_errlog_ptr =
844 le32_to_cpup((const __le32 *)tlv_data);
845 break;
846 case IWL_UCODE_TLV_ENHANCE_SENS_TBL:
847 if (tlv_len)
848 goto invalid_tlv_len;
849 drv->fw.enhance_sensitivity_table = true;
850 break;
851 case IWL_UCODE_TLV_WOWLAN_INST:
852 set_sec_data(pieces, IWL_UCODE_WOWLAN,
853 IWL_UCODE_SECTION_INST, tlv_data);
854 set_sec_size(pieces, IWL_UCODE_WOWLAN,
855 IWL_UCODE_SECTION_INST, tlv_len);
856 set_sec_offset(pieces, IWL_UCODE_WOWLAN,
857 IWL_UCODE_SECTION_INST,
858 IWLAGN_RTC_INST_LOWER_BOUND);
859 break;
860 case IWL_UCODE_TLV_WOWLAN_DATA:
861 set_sec_data(pieces, IWL_UCODE_WOWLAN,
862 IWL_UCODE_SECTION_DATA, tlv_data);
863 set_sec_size(pieces, IWL_UCODE_WOWLAN,
864 IWL_UCODE_SECTION_DATA, tlv_len);
865 set_sec_offset(pieces, IWL_UCODE_WOWLAN,
866 IWL_UCODE_SECTION_DATA,
867 IWLAGN_RTC_DATA_LOWER_BOUND);
868 break;
869 case IWL_UCODE_TLV_PHY_CALIBRATION_SIZE:
870 if (tlv_len != sizeof(u32))
871 goto invalid_tlv_len;
872 capa->standard_phy_calibration_size =
873 le32_to_cpup((const __le32 *)tlv_data);
874 break;
875 case IWL_UCODE_TLV_SEC_RT:
876 iwl_store_ucode_sec(pieces, tlv_data, IWL_UCODE_REGULAR,
877 tlv_len);
878 drv->fw.type = IWL_FW_MVM;
879 break;
880 case IWL_UCODE_TLV_SEC_INIT:
881 iwl_store_ucode_sec(pieces, tlv_data, IWL_UCODE_INIT,
882 tlv_len);
883 drv->fw.type = IWL_FW_MVM;
884 break;
885 case IWL_UCODE_TLV_SEC_WOWLAN:
886 iwl_store_ucode_sec(pieces, tlv_data, IWL_UCODE_WOWLAN,
887 tlv_len);
888 drv->fw.type = IWL_FW_MVM;
889 break;
890 case IWL_UCODE_TLV_DEF_CALIB:
891 if (tlv_len != sizeof(struct iwl_tlv_calib_data))
892 goto invalid_tlv_len;
893 if (iwl_set_default_calib(drv, tlv_data))
894 goto tlv_error;
895 break;
896 case IWL_UCODE_TLV_PHY_SKU:
897 if (tlv_len != sizeof(u32))
898 goto invalid_tlv_len;
899 drv->fw.phy_config = le32_to_cpup((const __le32 *)tlv_data);
900 drv->fw.valid_tx_ant = (drv->fw.phy_config &
901 FW_PHY_CFG_TX_CHAIN) >>
902 FW_PHY_CFG_TX_CHAIN_POS;
903 drv->fw.valid_rx_ant = (drv->fw.phy_config &
904 FW_PHY_CFG_RX_CHAIN) >>
905 FW_PHY_CFG_RX_CHAIN_POS;
906 break;
907 case IWL_UCODE_TLV_SECURE_SEC_RT:
908 iwl_store_ucode_sec(pieces, tlv_data, IWL_UCODE_REGULAR,
909 tlv_len);
910 drv->fw.type = IWL_FW_MVM;
911 break;
912 case IWL_UCODE_TLV_SECURE_SEC_INIT:
913 iwl_store_ucode_sec(pieces, tlv_data, IWL_UCODE_INIT,
914 tlv_len);
915 drv->fw.type = IWL_FW_MVM;
916 break;
917 case IWL_UCODE_TLV_SECURE_SEC_WOWLAN:
918 iwl_store_ucode_sec(pieces, tlv_data, IWL_UCODE_WOWLAN,
919 tlv_len);
920 drv->fw.type = IWL_FW_MVM;
921 break;
922 case IWL_UCODE_TLV_NUM_OF_CPU:
923 if (tlv_len != sizeof(u32))
924 goto invalid_tlv_len;
925 num_of_cpus =
926 le32_to_cpup((const __le32 *)tlv_data);
927
928 if (num_of_cpus == 2) {
929 drv->fw.img[IWL_UCODE_REGULAR].is_dual_cpus =
930 true;
931 drv->fw.img[IWL_UCODE_INIT].is_dual_cpus =
932 true;
933 drv->fw.img[IWL_UCODE_WOWLAN].is_dual_cpus =
934 true;
935 } else if ((num_of_cpus > 2) || (num_of_cpus < 1)) {
936 IWL_ERR(drv, "Driver support upto 2 CPUs\n");
937 return -EINVAL;
938 }
939 break;
940 case IWL_UCODE_TLV_CSCHEME:
941 if (iwl_store_cscheme(&drv->fw, tlv_data, tlv_len))
942 goto invalid_tlv_len;
943 break;
944 case IWL_UCODE_TLV_N_SCAN_CHANNELS:
945 if (tlv_len != sizeof(u32))
946 goto invalid_tlv_len;
947 capa->n_scan_channels =
948 le32_to_cpup((const __le32 *)tlv_data);
949 break;
950 case IWL_UCODE_TLV_FW_VERSION: {
951 const __le32 *ptr = (const void *)tlv_data;
952 u32 major, minor;
953 u8 local_comp;
954
955 if (tlv_len != sizeof(u32) * 3)
956 goto invalid_tlv_len;
957
958 major = le32_to_cpup(ptr++);
959 minor = le32_to_cpup(ptr++);
960 local_comp = le32_to_cpup(ptr);
961
962 if (major >= 35)
963 snprintf(drv->fw.fw_version,
964 sizeof(drv->fw.fw_version),
965 "%u.%08x.%u %s", major, minor,
966 local_comp, iwl_reduced_fw_name(drv));
967 else
968 snprintf(drv->fw.fw_version,
969 sizeof(drv->fw.fw_version),
970 "%u.%u.%u %s", major, minor,
971 local_comp, iwl_reduced_fw_name(drv));
972 break;
973 }
974 case IWL_UCODE_TLV_FW_DBG_DEST: {
975 const struct iwl_fw_dbg_dest_tlv *dest = NULL;
976 const struct iwl_fw_dbg_dest_tlv_v1 *dest_v1 = NULL;
977 u8 mon_mode;
978
979 pieces->dbg_dest_ver = (const u8 *)tlv_data;
980 if (*pieces->dbg_dest_ver == 1) {
981 dest = (const void *)tlv_data;
982 } else if (*pieces->dbg_dest_ver == 0) {
983 dest_v1 = (const void *)tlv_data;
984 } else {
985 IWL_ERR(drv,
986 "The version is %d, and it is invalid\n",
987 *pieces->dbg_dest_ver);
988 break;
989 }
990
991 if (pieces->dbg_dest_tlv_init) {
992 IWL_ERR(drv,
993 "dbg destination ignored, already exists\n");
994 break;
995 }
996
997 pieces->dbg_dest_tlv_init = true;
998
999 if (dest_v1) {
1000 pieces->dbg_dest_tlv_v1 = dest_v1;
1001 mon_mode = dest_v1->monitor_mode;
1002 } else {
1003 pieces->dbg_dest_tlv = dest;
1004 mon_mode = dest->monitor_mode;
1005 }
1006
1007 IWL_INFO(drv, "Found debug destination: %s\n",
1008 get_fw_dbg_mode_string(mon_mode));
1009
1010 drv->fw.dbg.n_dest_reg = (dest_v1) ?
1011 tlv_len -
1012 offsetof(struct iwl_fw_dbg_dest_tlv_v1,
1013 reg_ops) :
1014 tlv_len -
1015 offsetof(struct iwl_fw_dbg_dest_tlv,
1016 reg_ops);
1017
1018 drv->fw.dbg.n_dest_reg /=
1019 sizeof(drv->fw.dbg.dest_tlv->reg_ops[0]);
1020
1021 break;
1022 }
1023 case IWL_UCODE_TLV_FW_DBG_CONF: {
1024 const struct iwl_fw_dbg_conf_tlv *conf =
1025 (const void *)tlv_data;
1026
1027 if (!pieces->dbg_dest_tlv_init) {
1028 IWL_ERR(drv,
1029 "Ignore dbg config %d - no destination configured\n",
1030 conf->id);
1031 break;
1032 }
1033
1034 if (conf->id >= ARRAY_SIZE(drv->fw.dbg.conf_tlv)) {
1035 IWL_ERR(drv,
1036 "Skip unknown configuration: %d\n",
1037 conf->id);
1038 break;
1039 }
1040
1041 if (pieces->dbg_conf_tlv[conf->id]) {
1042 IWL_ERR(drv,
1043 "Ignore duplicate dbg config %d\n",
1044 conf->id);
1045 break;
1046 }
1047
1048 if (conf->usniffer)
1049 usniffer_req = true;
1050
1051 IWL_INFO(drv, "Found debug configuration: %d\n",
1052 conf->id);
1053
1054 pieces->dbg_conf_tlv[conf->id] = conf;
1055 pieces->dbg_conf_tlv_len[conf->id] = tlv_len;
1056 break;
1057 }
1058 case IWL_UCODE_TLV_FW_DBG_TRIGGER: {
1059 const struct iwl_fw_dbg_trigger_tlv *trigger =
1060 (const void *)tlv_data;
1061 u32 trigger_id = le32_to_cpu(trigger->id);
1062
1063 if (trigger_id >= ARRAY_SIZE(drv->fw.dbg.trigger_tlv)) {
1064 IWL_ERR(drv,
1065 "Skip unknown trigger: %u\n",
1066 trigger->id);
1067 break;
1068 }
1069
1070 if (pieces->dbg_trigger_tlv[trigger_id]) {
1071 IWL_ERR(drv,
1072 "Ignore duplicate dbg trigger %u\n",
1073 trigger->id);
1074 break;
1075 }
1076
1077 IWL_INFO(drv, "Found debug trigger: %u\n", trigger->id);
1078
1079 pieces->dbg_trigger_tlv[trigger_id] = trigger;
1080 pieces->dbg_trigger_tlv_len[trigger_id] = tlv_len;
1081 break;
1082 }
1083 case IWL_UCODE_TLV_FW_DBG_DUMP_LST: {
1084 if (tlv_len != sizeof(u32)) {
1085 IWL_ERR(drv,
1086 "dbg lst mask size incorrect, skip\n");
1087 break;
1088 }
1089
1090 drv->fw.dbg.dump_mask =
1091 le32_to_cpup((const __le32 *)tlv_data);
1092 break;
1093 }
1094 case IWL_UCODE_TLV_SEC_RT_USNIFFER:
1095 *usniffer_images = true;
1096 iwl_store_ucode_sec(pieces, tlv_data,
1097 IWL_UCODE_REGULAR_USNIFFER,
1098 tlv_len);
1099 break;
1100 case IWL_UCODE_TLV_PAGING:
1101 if (tlv_len != sizeof(u32))
1102 goto invalid_tlv_len;
1103 paging_mem_size = le32_to_cpup((const __le32 *)tlv_data);
1104
1105 IWL_DEBUG_FW(drv,
1106 "Paging: paging enabled (size = %u bytes)\n",
1107 paging_mem_size);
1108
1109 if (paging_mem_size > MAX_PAGING_IMAGE_SIZE) {
1110 IWL_ERR(drv,
1111 "Paging: driver supports up to %lu bytes for paging image\n",
1112 MAX_PAGING_IMAGE_SIZE);
1113 return -EINVAL;
1114 }
1115
1116 if (paging_mem_size & (FW_PAGING_SIZE - 1)) {
1117 IWL_ERR(drv,
1118 "Paging: image isn't multiple %lu\n",
1119 FW_PAGING_SIZE);
1120 return -EINVAL;
1121 }
1122
1123 drv->fw.img[IWL_UCODE_REGULAR].paging_mem_size =
1124 paging_mem_size;
1125 usniffer_img = IWL_UCODE_REGULAR_USNIFFER;
1126 drv->fw.img[usniffer_img].paging_mem_size =
1127 paging_mem_size;
1128 break;
1129 case IWL_UCODE_TLV_FW_GSCAN_CAPA:
1130 /* ignored */
1131 break;
1132 case IWL_UCODE_TLV_FW_MEM_SEG: {
1133 const struct iwl_fw_dbg_mem_seg_tlv *dbg_mem =
1134 (const void *)tlv_data;
1135 size_t size;
1136 struct iwl_fw_dbg_mem_seg_tlv *n;
1137
1138 if (tlv_len != (sizeof(*dbg_mem)))
1139 goto invalid_tlv_len;
1140
1141 IWL_DEBUG_INFO(drv, "Found debug memory segment: %u\n",
1142 dbg_mem->data_type);
1143
1144 size = sizeof(*pieces->dbg_mem_tlv) *
1145 (pieces->n_mem_tlv + 1);
1146 n = krealloc(pieces->dbg_mem_tlv, size, GFP_KERNEL);
1147 if (!n)
1148 return -ENOMEM;
1149 pieces->dbg_mem_tlv = n;
1150 pieces->dbg_mem_tlv[pieces->n_mem_tlv] = *dbg_mem;
1151 pieces->n_mem_tlv++;
1152 break;
1153 }
1154 case IWL_UCODE_TLV_IML: {
1155 drv->fw.iml_len = tlv_len;
1156 drv->fw.iml = kmemdup(tlv_data, tlv_len, GFP_KERNEL);
1157 if (!drv->fw.iml)
1158 return -ENOMEM;
1159 break;
1160 }
1161 case IWL_UCODE_TLV_FW_RECOVERY_INFO: {
1162 const struct {
1163 __le32 buf_addr;
1164 __le32 buf_size;
1165 } *recov_info = (const void *)tlv_data;
1166
1167 if (tlv_len != sizeof(*recov_info))
1168 goto invalid_tlv_len;
1169 capa->error_log_addr =
1170 le32_to_cpu(recov_info->buf_addr);
1171 capa->error_log_size =
1172 le32_to_cpu(recov_info->buf_size);
1173 }
1174 break;
1175 case IWL_UCODE_TLV_FW_FSEQ_VERSION: {
1176 const struct {
1177 u8 version[32];
1178 u8 sha1[20];
1179 } *fseq_ver = (const void *)tlv_data;
1180
1181 if (tlv_len != sizeof(*fseq_ver))
1182 goto invalid_tlv_len;
1183 IWL_INFO(drv, "TLV_FW_FSEQ_VERSION: %s\n",
1184 fseq_ver->version);
1185 }
1186 break;
1187 case IWL_UCODE_TLV_FW_NUM_STATIONS:
1188 if (tlv_len != sizeof(u32))
1189 goto invalid_tlv_len;
1190 if (le32_to_cpup((const __le32 *)tlv_data) >
1191 IWL_MVM_STATION_COUNT_MAX) {
1192 IWL_ERR(drv,
1193 "%d is an invalid number of station\n",
1194 le32_to_cpup((const __le32 *)tlv_data));
1195 goto tlv_error;
1196 }
1197 capa->num_stations =
1198 le32_to_cpup((const __le32 *)tlv_data);
1199 break;
1200 case IWL_UCODE_TLV_UMAC_DEBUG_ADDRS: {
1201 const struct iwl_umac_debug_addrs *dbg_ptrs =
1202 (const void *)tlv_data;
1203
1204 if (tlv_len != sizeof(*dbg_ptrs))
1205 goto invalid_tlv_len;
1206 if (drv->trans->trans_cfg->device_family <
1207 IWL_DEVICE_FAMILY_22000)
1208 break;
1209 drv->trans->dbg.umac_error_event_table =
1210 le32_to_cpu(dbg_ptrs->error_info_addr) &
1211 ~FW_ADDR_CACHE_CONTROL;
1212 drv->trans->dbg.error_event_table_tlv_status |=
1213 IWL_ERROR_EVENT_TABLE_UMAC;
1214 break;
1215 }
1216 case IWL_UCODE_TLV_LMAC_DEBUG_ADDRS: {
1217 const struct iwl_lmac_debug_addrs *dbg_ptrs =
1218 (const void *)tlv_data;
1219
1220 if (tlv_len != sizeof(*dbg_ptrs))
1221 goto invalid_tlv_len;
1222 if (drv->trans->trans_cfg->device_family <
1223 IWL_DEVICE_FAMILY_22000)
1224 break;
1225 drv->trans->dbg.lmac_error_event_table[0] =
1226 le32_to_cpu(dbg_ptrs->error_event_table_ptr) &
1227 ~FW_ADDR_CACHE_CONTROL;
1228 drv->trans->dbg.error_event_table_tlv_status |=
1229 IWL_ERROR_EVENT_TABLE_LMAC1;
1230 break;
1231 }
1232 case IWL_UCODE_TLV_TYPE_REGIONS:
1233 iwl_parse_dbg_tlv_assert_tables(drv, tlv);
1234 fallthrough;
1235 case IWL_UCODE_TLV_TYPE_DEBUG_INFO:
1236 case IWL_UCODE_TLV_TYPE_BUFFER_ALLOCATION:
1237 case IWL_UCODE_TLV_TYPE_HCMD:
1238 case IWL_UCODE_TLV_TYPE_TRIGGERS:
1239 case IWL_UCODE_TLV_TYPE_CONF_SET:
1240 if (iwlwifi_mod_params.enable_ini)
1241 iwl_dbg_tlv_alloc(drv->trans, tlv, false);
1242 break;
1243 case IWL_UCODE_TLV_CMD_VERSIONS:
1244 if (tlv_len % sizeof(struct iwl_fw_cmd_version)) {
1245 IWL_ERR(drv,
1246 "Invalid length for command versions: %u\n",
1247 tlv_len);
1248 tlv_len /= sizeof(struct iwl_fw_cmd_version);
1249 tlv_len *= sizeof(struct iwl_fw_cmd_version);
1250 }
1251 if (WARN_ON(capa->cmd_versions))
1252 return -EINVAL;
1253 capa->cmd_versions = kmemdup(tlv_data, tlv_len,
1254 GFP_KERNEL);
1255 if (!capa->cmd_versions)
1256 return -ENOMEM;
1257 capa->n_cmd_versions =
1258 tlv_len / sizeof(struct iwl_fw_cmd_version);
1259 break;
1260 case IWL_UCODE_TLV_PHY_INTEGRATION_VERSION:
1261 if (drv->fw.phy_integration_ver) {
1262 IWL_ERR(drv,
1263 "phy integration str ignored, already exists\n");
1264 break;
1265 }
1266
1267 drv->fw.phy_integration_ver =
1268 kmemdup(tlv_data, tlv_len, GFP_KERNEL);
1269 if (!drv->fw.phy_integration_ver)
1270 return -ENOMEM;
1271 drv->fw.phy_integration_ver_len = tlv_len;
1272 break;
1273 case IWL_UCODE_TLV_SEC_TABLE_ADDR:
1274 case IWL_UCODE_TLV_D3_KEK_KCK_ADDR:
1275 iwl_drv_set_dump_exclude(drv, tlv_type,
1276 tlv_data, tlv_len);
1277 break;
1278 default:
1279 IWL_DEBUG_INFO(drv, "unknown TLV: %d\n", tlv_type);
1280 break;
1281 }
1282 }
1283
1284 if (!fw_has_capa(capa, IWL_UCODE_TLV_CAPA_USNIFFER_UNIFIED) &&
1285 usniffer_req && !*usniffer_images) {
1286 IWL_ERR(drv,
1287 "user selected to work with usniffer but usniffer image isn't available in ucode package\n");
1288 return -EINVAL;
1289 }
1290
1291 if (len) {
1292 IWL_ERR(drv, "invalid TLV after parsing: %zd\n", len);
1293 #if defined(__linux__)
1294 iwl_print_hex_dump(drv, IWL_DL_FW, data, len);
1295 #elif defined(__FreeBSD__)
1296 #ifdef CONFIG_IWLWIFI_DEBUGFS
1297 iwl_print_hex_dump(drv, IWL_DL_FW, "TLV ", data, len);
1298 #endif
1299 #endif
1300 return -EINVAL;
1301 }
1302
1303 return 0;
1304
1305 invalid_tlv_len:
1306 IWL_ERR(drv, "TLV %d has invalid size: %u\n", tlv_type, tlv_len);
1307 tlv_error:
1308 #if defined(__linux__)
1309 iwl_print_hex_dump(drv, IWL_DL_FW, tlv_data, tlv_len);
1310 #elif defined(__FreeBSD__)
1311 #ifdef CONFIG_IWLWIFI_DEBUGFS
1312 iwl_print_hex_dump(drv, IWL_DL_FW, "TLV ", tlv_data, tlv_len);
1313 #endif
1314 #endif
1315
1316 return -EINVAL;
1317 }
1318
iwl_alloc_ucode(struct iwl_drv * drv,struct iwl_firmware_pieces * pieces,enum iwl_ucode_type type)1319 static int iwl_alloc_ucode(struct iwl_drv *drv,
1320 struct iwl_firmware_pieces *pieces,
1321 enum iwl_ucode_type type)
1322 {
1323 int i;
1324 struct fw_desc *sec;
1325
1326 sec = kcalloc(pieces->img[type].sec_counter, sizeof(*sec), GFP_KERNEL);
1327 if (!sec)
1328 return -ENOMEM;
1329 drv->fw.img[type].sec = sec;
1330 drv->fw.img[type].num_sec = pieces->img[type].sec_counter;
1331
1332 for (i = 0; i < pieces->img[type].sec_counter; i++)
1333 if (iwl_alloc_fw_desc(drv, &sec[i], get_sec(pieces, type, i)))
1334 return -ENOMEM;
1335
1336 return 0;
1337 }
1338
validate_sec_sizes(struct iwl_drv * drv,struct iwl_firmware_pieces * pieces,const struct iwl_cfg * cfg)1339 static int validate_sec_sizes(struct iwl_drv *drv,
1340 struct iwl_firmware_pieces *pieces,
1341 const struct iwl_cfg *cfg)
1342 {
1343 IWL_DEBUG_INFO(drv, "f/w package hdr runtime inst size = %zd\n",
1344 get_sec_size(pieces, IWL_UCODE_REGULAR,
1345 IWL_UCODE_SECTION_INST));
1346 IWL_DEBUG_INFO(drv, "f/w package hdr runtime data size = %zd\n",
1347 get_sec_size(pieces, IWL_UCODE_REGULAR,
1348 IWL_UCODE_SECTION_DATA));
1349 IWL_DEBUG_INFO(drv, "f/w package hdr init inst size = %zd\n",
1350 get_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_INST));
1351 IWL_DEBUG_INFO(drv, "f/w package hdr init data size = %zd\n",
1352 get_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_DATA));
1353
1354 /* Verify that uCode images will fit in card's SRAM. */
1355 if (get_sec_size(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_INST) >
1356 cfg->max_inst_size) {
1357 IWL_ERR(drv, "uCode instr len %zd too large to fit in\n",
1358 get_sec_size(pieces, IWL_UCODE_REGULAR,
1359 IWL_UCODE_SECTION_INST));
1360 return -1;
1361 }
1362
1363 if (get_sec_size(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_DATA) >
1364 cfg->max_data_size) {
1365 IWL_ERR(drv, "uCode data len %zd too large to fit in\n",
1366 get_sec_size(pieces, IWL_UCODE_REGULAR,
1367 IWL_UCODE_SECTION_DATA));
1368 return -1;
1369 }
1370
1371 if (get_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_INST) >
1372 cfg->max_inst_size) {
1373 IWL_ERR(drv, "uCode init instr len %zd too large to fit in\n",
1374 get_sec_size(pieces, IWL_UCODE_INIT,
1375 IWL_UCODE_SECTION_INST));
1376 return -1;
1377 }
1378
1379 if (get_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_DATA) >
1380 cfg->max_data_size) {
1381 IWL_ERR(drv, "uCode init data len %zd too large to fit in\n",
1382 get_sec_size(pieces, IWL_UCODE_REGULAR,
1383 IWL_UCODE_SECTION_DATA));
1384 return -1;
1385 }
1386 return 0;
1387 }
1388
1389 static struct iwl_op_mode *
_iwl_op_mode_start(struct iwl_drv * drv,struct iwlwifi_opmode_table * op)1390 _iwl_op_mode_start(struct iwl_drv *drv, struct iwlwifi_opmode_table *op)
1391 {
1392 const struct iwl_op_mode_ops *ops = op->ops;
1393 struct dentry *dbgfs_dir = NULL;
1394 struct iwl_op_mode *op_mode = NULL;
1395 int retry, max_retry = !!iwlwifi_mod_params.fw_restart * IWL_MAX_INIT_RETRY;
1396
1397 for (retry = 0; retry <= max_retry; retry++) {
1398
1399 #ifdef CONFIG_IWLWIFI_DEBUGFS
1400 drv->dbgfs_op_mode = debugfs_create_dir(op->name,
1401 drv->dbgfs_drv);
1402 dbgfs_dir = drv->dbgfs_op_mode;
1403 #endif
1404
1405 op_mode = ops->start(drv->trans, drv->trans->cfg,
1406 &drv->fw, dbgfs_dir);
1407
1408 if (op_mode)
1409 return op_mode;
1410
1411 IWL_ERR(drv, "retry init count %d\n", retry);
1412
1413 #ifdef CONFIG_IWLWIFI_DEBUGFS
1414 debugfs_remove_recursive(drv->dbgfs_op_mode);
1415 drv->dbgfs_op_mode = NULL;
1416 #endif
1417 }
1418
1419 return NULL;
1420 }
1421
_iwl_op_mode_stop(struct iwl_drv * drv)1422 static void _iwl_op_mode_stop(struct iwl_drv *drv)
1423 {
1424 /* op_mode can be NULL if its start failed */
1425 if (drv->op_mode) {
1426 iwl_op_mode_stop(drv->op_mode);
1427 drv->op_mode = NULL;
1428
1429 #ifdef CONFIG_IWLWIFI_DEBUGFS
1430 debugfs_remove_recursive(drv->dbgfs_op_mode);
1431 drv->dbgfs_op_mode = NULL;
1432 #endif
1433 }
1434 }
1435
1436 /*
1437 * iwl_req_fw_callback - callback when firmware was loaded
1438 *
1439 * If loaded successfully, copies the firmware into buffers
1440 * for the card to fetch (via DMA).
1441 */
iwl_req_fw_callback(const struct firmware * ucode_raw,void * context)1442 static void iwl_req_fw_callback(const struct firmware *ucode_raw, void *context)
1443 {
1444 struct iwl_drv *drv = context;
1445 struct iwl_fw *fw = &drv->fw;
1446 const struct iwl_ucode_header *ucode;
1447 struct iwlwifi_opmode_table *op;
1448 int err;
1449 struct iwl_firmware_pieces *pieces;
1450 const unsigned int api_max = drv->trans->cfg->ucode_api_max;
1451 const unsigned int api_min = drv->trans->cfg->ucode_api_min;
1452 size_t trigger_tlv_sz[FW_DBG_TRIGGER_MAX];
1453 u32 api_ver;
1454 int i;
1455 bool load_module = false;
1456 bool usniffer_images = false;
1457 bool failure = true;
1458
1459 fw->ucode_capa.max_probe_length = IWL_DEFAULT_MAX_PROBE_LENGTH;
1460 fw->ucode_capa.standard_phy_calibration_size =
1461 IWL_DEFAULT_STANDARD_PHY_CALIBRATE_TBL_SIZE;
1462 fw->ucode_capa.n_scan_channels = IWL_DEFAULT_SCAN_CHANNELS;
1463 fw->ucode_capa.num_stations = IWL_MVM_STATION_COUNT_MAX;
1464 /* dump all fw memory areas by default */
1465 fw->dbg.dump_mask = 0xffffffff;
1466
1467 pieces = kzalloc(sizeof(*pieces), GFP_KERNEL);
1468 if (!pieces)
1469 goto out_free_fw;
1470
1471 if (!ucode_raw)
1472 goto try_again;
1473
1474 IWL_DEBUG_FW_INFO(drv, "Loaded firmware file '%s' (%zd bytes).\n",
1475 drv->firmware_name, ucode_raw->size);
1476
1477 /* Make sure that we got at least the API version number */
1478 if (ucode_raw->size < 4) {
1479 IWL_ERR(drv, "File size way too small!\n");
1480 goto try_again;
1481 }
1482
1483 /* Data from ucode file: header followed by uCode images */
1484 ucode = (const struct iwl_ucode_header *)ucode_raw->data;
1485
1486 if (ucode->ver)
1487 err = iwl_parse_v1_v2_firmware(drv, ucode_raw, pieces);
1488 else
1489 err = iwl_parse_tlv_firmware(drv, ucode_raw, pieces,
1490 &fw->ucode_capa, &usniffer_images);
1491
1492 if (err)
1493 goto try_again;
1494
1495 if (fw_has_api(&drv->fw.ucode_capa, IWL_UCODE_TLV_API_NEW_VERSION))
1496 api_ver = drv->fw.ucode_ver;
1497 else
1498 api_ver = IWL_UCODE_API(drv->fw.ucode_ver);
1499
1500 /*
1501 * api_ver should match the api version forming part of the
1502 * firmware filename ... but we don't check for that and only rely
1503 * on the API version read from firmware header from here on forward
1504 */
1505 if (api_ver < api_min || api_ver > api_max) {
1506 IWL_ERR(drv,
1507 "Driver unable to support your firmware API. "
1508 "Driver supports v%u, firmware is v%u.\n",
1509 api_max, api_ver);
1510 goto try_again;
1511 }
1512
1513 /*
1514 * In mvm uCode there is no difference between data and instructions
1515 * sections.
1516 */
1517 if (fw->type == IWL_FW_DVM && validate_sec_sizes(drv, pieces,
1518 drv->trans->cfg))
1519 goto try_again;
1520
1521 /* Allocate ucode buffers for card's bus-master loading ... */
1522
1523 /* Runtime instructions and 2 copies of data:
1524 * 1) unmodified from disk
1525 * 2) backup cache for save/restore during power-downs
1526 */
1527 for (i = 0; i < IWL_UCODE_TYPE_MAX; i++)
1528 if (iwl_alloc_ucode(drv, pieces, i))
1529 goto out_free_fw;
1530
1531 if (pieces->dbg_dest_tlv_init) {
1532 size_t dbg_dest_size = sizeof(*drv->fw.dbg.dest_tlv) +
1533 sizeof(drv->fw.dbg.dest_tlv->reg_ops[0]) *
1534 drv->fw.dbg.n_dest_reg;
1535
1536 drv->fw.dbg.dest_tlv = kmalloc(dbg_dest_size, GFP_KERNEL);
1537
1538 if (!drv->fw.dbg.dest_tlv)
1539 goto out_free_fw;
1540
1541 if (*pieces->dbg_dest_ver == 0) {
1542 memcpy(drv->fw.dbg.dest_tlv, pieces->dbg_dest_tlv_v1,
1543 dbg_dest_size);
1544 } else {
1545 struct iwl_fw_dbg_dest_tlv_v1 *dest_tlv =
1546 drv->fw.dbg.dest_tlv;
1547
1548 dest_tlv->version = pieces->dbg_dest_tlv->version;
1549 dest_tlv->monitor_mode =
1550 pieces->dbg_dest_tlv->monitor_mode;
1551 dest_tlv->size_power =
1552 pieces->dbg_dest_tlv->size_power;
1553 dest_tlv->wrap_count =
1554 pieces->dbg_dest_tlv->wrap_count;
1555 dest_tlv->write_ptr_reg =
1556 pieces->dbg_dest_tlv->write_ptr_reg;
1557 dest_tlv->base_shift =
1558 pieces->dbg_dest_tlv->base_shift;
1559 memcpy(dest_tlv->reg_ops,
1560 pieces->dbg_dest_tlv->reg_ops,
1561 sizeof(drv->fw.dbg.dest_tlv->reg_ops[0]) *
1562 drv->fw.dbg.n_dest_reg);
1563
1564 /* In version 1 of the destination tlv, which is
1565 * relevant for internal buffer exclusively,
1566 * the base address is part of given with the length
1567 * of the buffer, and the size shift is give instead of
1568 * end shift. We now store these values in base_reg,
1569 * and end shift, and when dumping the data we'll
1570 * manipulate it for extracting both the length and
1571 * base address */
1572 dest_tlv->base_reg = pieces->dbg_dest_tlv->cfg_reg;
1573 dest_tlv->end_shift =
1574 pieces->dbg_dest_tlv->size_shift;
1575 }
1576 }
1577
1578 for (i = 0; i < ARRAY_SIZE(drv->fw.dbg.conf_tlv); i++) {
1579 if (pieces->dbg_conf_tlv[i]) {
1580 drv->fw.dbg.conf_tlv[i] =
1581 kmemdup(pieces->dbg_conf_tlv[i],
1582 pieces->dbg_conf_tlv_len[i],
1583 GFP_KERNEL);
1584 if (!drv->fw.dbg.conf_tlv[i])
1585 goto out_free_fw;
1586 }
1587 }
1588
1589 memset(&trigger_tlv_sz, 0xff, sizeof(trigger_tlv_sz));
1590
1591 trigger_tlv_sz[FW_DBG_TRIGGER_MISSED_BEACONS] =
1592 sizeof(struct iwl_fw_dbg_trigger_missed_bcon);
1593 trigger_tlv_sz[FW_DBG_TRIGGER_CHANNEL_SWITCH] = 0;
1594 trigger_tlv_sz[FW_DBG_TRIGGER_FW_NOTIF] =
1595 sizeof(struct iwl_fw_dbg_trigger_cmd);
1596 trigger_tlv_sz[FW_DBG_TRIGGER_MLME] =
1597 sizeof(struct iwl_fw_dbg_trigger_mlme);
1598 trigger_tlv_sz[FW_DBG_TRIGGER_STATS] =
1599 sizeof(struct iwl_fw_dbg_trigger_stats);
1600 trigger_tlv_sz[FW_DBG_TRIGGER_RSSI] =
1601 sizeof(struct iwl_fw_dbg_trigger_low_rssi);
1602 trigger_tlv_sz[FW_DBG_TRIGGER_TXQ_TIMERS] =
1603 sizeof(struct iwl_fw_dbg_trigger_txq_timer);
1604 trigger_tlv_sz[FW_DBG_TRIGGER_TIME_EVENT] =
1605 sizeof(struct iwl_fw_dbg_trigger_time_event);
1606 trigger_tlv_sz[FW_DBG_TRIGGER_BA] =
1607 sizeof(struct iwl_fw_dbg_trigger_ba);
1608 trigger_tlv_sz[FW_DBG_TRIGGER_TDLS] =
1609 sizeof(struct iwl_fw_dbg_trigger_tdls);
1610
1611 for (i = 0; i < ARRAY_SIZE(drv->fw.dbg.trigger_tlv); i++) {
1612 if (pieces->dbg_trigger_tlv[i]) {
1613 /*
1614 * If the trigger isn't long enough, WARN and exit.
1615 * Someone is trying to debug something and he won't
1616 * be able to catch the bug he is trying to chase.
1617 * We'd better be noisy to be sure he knows what's
1618 * going on.
1619 */
1620 if (WARN_ON(pieces->dbg_trigger_tlv_len[i] <
1621 (trigger_tlv_sz[i] +
1622 sizeof(struct iwl_fw_dbg_trigger_tlv))))
1623 goto out_free_fw;
1624 drv->fw.dbg.trigger_tlv_len[i] =
1625 pieces->dbg_trigger_tlv_len[i];
1626 drv->fw.dbg.trigger_tlv[i] =
1627 kmemdup(pieces->dbg_trigger_tlv[i],
1628 drv->fw.dbg.trigger_tlv_len[i],
1629 GFP_KERNEL);
1630 if (!drv->fw.dbg.trigger_tlv[i])
1631 goto out_free_fw;
1632 }
1633 }
1634
1635 /* Now that we can no longer fail, copy information */
1636
1637 drv->fw.dbg.mem_tlv = pieces->dbg_mem_tlv;
1638 pieces->dbg_mem_tlv = NULL;
1639 drv->fw.dbg.n_mem_tlv = pieces->n_mem_tlv;
1640
1641 /*
1642 * The (size - 16) / 12 formula is based on the information recorded
1643 * for each event, which is of mode 1 (including timestamp) for all
1644 * new microcodes that include this information.
1645 */
1646 fw->init_evtlog_ptr = pieces->init_evtlog_ptr;
1647 if (pieces->init_evtlog_size)
1648 fw->init_evtlog_size = (pieces->init_evtlog_size - 16)/12;
1649 else
1650 fw->init_evtlog_size =
1651 drv->trans->trans_cfg->base_params->max_event_log_size;
1652 fw->init_errlog_ptr = pieces->init_errlog_ptr;
1653 fw->inst_evtlog_ptr = pieces->inst_evtlog_ptr;
1654 if (pieces->inst_evtlog_size)
1655 fw->inst_evtlog_size = (pieces->inst_evtlog_size - 16)/12;
1656 else
1657 fw->inst_evtlog_size =
1658 drv->trans->trans_cfg->base_params->max_event_log_size;
1659 fw->inst_errlog_ptr = pieces->inst_errlog_ptr;
1660
1661 /*
1662 * figure out the offset of chain noise reset and gain commands
1663 * base on the size of standard phy calibration commands table size
1664 */
1665 if (fw->ucode_capa.standard_phy_calibration_size >
1666 IWL_MAX_PHY_CALIBRATE_TBL_SIZE)
1667 fw->ucode_capa.standard_phy_calibration_size =
1668 IWL_MAX_STANDARD_PHY_CALIBRATE_TBL_SIZE;
1669
1670 /* We have our copies now, allow OS release its copies */
1671 release_firmware(ucode_raw);
1672
1673 iwl_dbg_tlv_load_bin(drv->trans->dev, drv->trans);
1674
1675 mutex_lock(&iwlwifi_opmode_table_mtx);
1676 switch (fw->type) {
1677 case IWL_FW_DVM:
1678 op = &iwlwifi_opmode_table[DVM_OP_MODE];
1679 break;
1680 default:
1681 WARN(1, "Invalid fw type %d\n", fw->type);
1682 fallthrough;
1683 case IWL_FW_MVM:
1684 op = &iwlwifi_opmode_table[MVM_OP_MODE];
1685 break;
1686 }
1687
1688 IWL_INFO(drv, "loaded firmware version %s op_mode %s\n",
1689 drv->fw.fw_version, op->name);
1690
1691 /* add this device to the list of devices using this op_mode */
1692 list_add_tail(&drv->list, &op->drv);
1693
1694 if (op->ops) {
1695 drv->op_mode = _iwl_op_mode_start(drv, op);
1696
1697 if (!drv->op_mode) {
1698 mutex_unlock(&iwlwifi_opmode_table_mtx);
1699 goto out_unbind;
1700 }
1701 } else {
1702 load_module = true;
1703 }
1704 mutex_unlock(&iwlwifi_opmode_table_mtx);
1705
1706 /*
1707 * Complete the firmware request last so that
1708 * a driver unbind (stop) doesn't run while we
1709 * are doing the start() above.
1710 */
1711 complete(&drv->request_firmware_complete);
1712
1713 /*
1714 * Load the module last so we don't block anything
1715 * else from proceeding if the module fails to load
1716 * or hangs loading.
1717 */
1718 if (load_module)
1719 request_module("%s", op->name);
1720 failure = false;
1721 goto free;
1722
1723 try_again:
1724 /* try next, if any */
1725 release_firmware(ucode_raw);
1726 if (iwl_request_firmware(drv, false))
1727 goto out_unbind;
1728 goto free;
1729
1730 out_free_fw:
1731 release_firmware(ucode_raw);
1732 out_unbind:
1733 complete(&drv->request_firmware_complete);
1734 device_release_driver(drv->trans->dev);
1735 free:
1736 if (failure)
1737 iwl_dealloc_ucode(drv);
1738
1739 if (pieces) {
1740 for (i = 0; i < ARRAY_SIZE(pieces->img); i++)
1741 kfree(pieces->img[i].sec);
1742 kfree(pieces->dbg_mem_tlv);
1743 kfree(pieces);
1744 }
1745 }
1746
iwl_drv_start(struct iwl_trans * trans)1747 struct iwl_drv *iwl_drv_start(struct iwl_trans *trans)
1748 {
1749 struct iwl_drv *drv;
1750 int ret;
1751
1752 drv = kzalloc(sizeof(*drv), GFP_KERNEL);
1753 if (!drv) {
1754 ret = -ENOMEM;
1755 goto err;
1756 }
1757
1758 drv->trans = trans;
1759 drv->dev = trans->dev;
1760
1761 init_completion(&drv->request_firmware_complete);
1762 INIT_LIST_HEAD(&drv->list);
1763
1764 #ifdef CONFIG_IWLWIFI_DEBUGFS
1765 /* Create the device debugfs entries. */
1766 drv->dbgfs_drv = debugfs_create_dir(dev_name(trans->dev),
1767 iwl_dbgfs_root);
1768
1769 /* Create transport layer debugfs dir */
1770 drv->trans->dbgfs_dir = debugfs_create_dir("trans", drv->dbgfs_drv);
1771 #endif
1772
1773 drv->trans->dbg.domains_bitmap = IWL_TRANS_FW_DBG_DOMAIN(drv->trans);
1774
1775 ret = iwl_request_firmware(drv, true);
1776 if (ret) {
1777 IWL_ERR(trans, "Couldn't request the fw\n");
1778 goto err_fw;
1779 }
1780
1781 return drv;
1782
1783 err_fw:
1784 #ifdef CONFIG_IWLWIFI_DEBUGFS
1785 debugfs_remove_recursive(drv->dbgfs_drv);
1786 iwl_dbg_tlv_free(drv->trans);
1787 #endif
1788 kfree(drv);
1789 err:
1790 return ERR_PTR(ret);
1791 }
1792
iwl_drv_stop(struct iwl_drv * drv)1793 void iwl_drv_stop(struct iwl_drv *drv)
1794 {
1795 wait_for_completion(&drv->request_firmware_complete);
1796
1797 _iwl_op_mode_stop(drv);
1798
1799 iwl_dealloc_ucode(drv);
1800
1801 mutex_lock(&iwlwifi_opmode_table_mtx);
1802 /*
1803 * List is empty (this item wasn't added)
1804 * when firmware loading failed -- in that
1805 * case we can't remove it from any list.
1806 */
1807 if (!list_empty(&drv->list))
1808 list_del(&drv->list);
1809 mutex_unlock(&iwlwifi_opmode_table_mtx);
1810
1811 #ifdef CONFIG_IWLWIFI_DEBUGFS
1812 drv->trans->ops->debugfs_cleanup(drv->trans);
1813
1814 debugfs_remove_recursive(drv->dbgfs_drv);
1815 #endif
1816
1817 iwl_dbg_tlv_free(drv->trans);
1818
1819 kfree(drv);
1820 }
1821
1822
1823 /* shared module parameters */
1824 struct iwl_mod_params iwlwifi_mod_params = {
1825 .fw_restart = true,
1826 .bt_coex_active = true,
1827 .power_level = IWL_POWER_INDEX_1,
1828 .uapsd_disable = IWL_DISABLE_UAPSD_BSS | IWL_DISABLE_UAPSD_P2P_CLIENT,
1829 .enable_ini = true,
1830 #if defined(__FreeBSD__)
1831 .disable_11n = 1,
1832 .disable_11ac = true,
1833 .disable_11ax = true,
1834 #endif
1835 /* the rest are 0 by default */
1836 };
1837 IWL_EXPORT_SYMBOL(iwlwifi_mod_params);
1838
iwl_opmode_register(const char * name,const struct iwl_op_mode_ops * ops)1839 int iwl_opmode_register(const char *name, const struct iwl_op_mode_ops *ops)
1840 {
1841 int i;
1842 struct iwl_drv *drv;
1843 struct iwlwifi_opmode_table *op;
1844
1845 mutex_lock(&iwlwifi_opmode_table_mtx);
1846 for (i = 0; i < ARRAY_SIZE(iwlwifi_opmode_table); i++) {
1847 op = &iwlwifi_opmode_table[i];
1848 if (strcmp(op->name, name))
1849 continue;
1850 op->ops = ops;
1851 /* TODO: need to handle exceptional case */
1852 list_for_each_entry(drv, &op->drv, list)
1853 drv->op_mode = _iwl_op_mode_start(drv, op);
1854
1855 mutex_unlock(&iwlwifi_opmode_table_mtx);
1856 return 0;
1857 }
1858 mutex_unlock(&iwlwifi_opmode_table_mtx);
1859 return -EIO;
1860 }
1861 IWL_EXPORT_SYMBOL(iwl_opmode_register);
1862
iwl_opmode_deregister(const char * name)1863 void iwl_opmode_deregister(const char *name)
1864 {
1865 int i;
1866 struct iwl_drv *drv;
1867
1868 mutex_lock(&iwlwifi_opmode_table_mtx);
1869 for (i = 0; i < ARRAY_SIZE(iwlwifi_opmode_table); i++) {
1870 if (strcmp(iwlwifi_opmode_table[i].name, name))
1871 continue;
1872 iwlwifi_opmode_table[i].ops = NULL;
1873
1874 /* call the stop routine for all devices */
1875 list_for_each_entry(drv, &iwlwifi_opmode_table[i].drv, list)
1876 _iwl_op_mode_stop(drv);
1877
1878 mutex_unlock(&iwlwifi_opmode_table_mtx);
1879 return;
1880 }
1881 mutex_unlock(&iwlwifi_opmode_table_mtx);
1882 }
1883 IWL_EXPORT_SYMBOL(iwl_opmode_deregister);
1884
iwl_drv_init(void)1885 static int __init iwl_drv_init(void)
1886 {
1887 int i, err;
1888
1889 for (i = 0; i < ARRAY_SIZE(iwlwifi_opmode_table); i++)
1890 INIT_LIST_HEAD(&iwlwifi_opmode_table[i].drv);
1891
1892 pr_info(DRV_DESCRIPTION "\n");
1893
1894 #ifdef CONFIG_IWLWIFI_DEBUGFS
1895 /* Create the root of iwlwifi debugfs subsystem. */
1896 iwl_dbgfs_root = debugfs_create_dir(DRV_NAME, NULL);
1897 #endif
1898
1899 err = iwl_pci_register_driver();
1900 if (err)
1901 goto cleanup_debugfs;
1902
1903 return 0;
1904
1905 cleanup_debugfs:
1906 #ifdef CONFIG_IWLWIFI_DEBUGFS
1907 debugfs_remove_recursive(iwl_dbgfs_root);
1908 #endif
1909 return err;
1910 }
1911 module_init(iwl_drv_init);
1912
iwl_drv_exit(void)1913 static void __exit iwl_drv_exit(void)
1914 {
1915 iwl_pci_unregister_driver();
1916
1917 #ifdef CONFIG_IWLWIFI_DEBUGFS
1918 debugfs_remove_recursive(iwl_dbgfs_root);
1919 #endif
1920 }
1921 module_exit(iwl_drv_exit);
1922
1923 #ifdef CONFIG_IWLWIFI_DEBUG
1924 module_param_named(debug, iwlwifi_mod_params.debug_level, uint, 0644);
1925 MODULE_PARM_DESC(debug, "debug output mask");
1926 #endif
1927
1928 module_param_named(swcrypto, iwlwifi_mod_params.swcrypto, int, 0444);
1929 MODULE_PARM_DESC(swcrypto, "using crypto in software (default 0 [hardware])");
1930 module_param_named(11n_disable, iwlwifi_mod_params.disable_11n, uint, 0444);
1931 MODULE_PARM_DESC(11n_disable,
1932 "disable 11n functionality, bitmap: 1: full, 2: disable agg TX, 4: disable agg RX, 8 enable agg TX");
1933 module_param_named(amsdu_size, iwlwifi_mod_params.amsdu_size, int, 0444);
1934 MODULE_PARM_DESC(amsdu_size,
1935 "amsdu size 0: 12K for multi Rx queue devices, 2K for AX210 devices, "
1936 "4K for other devices 1:4K 2:8K 3:12K (16K buffers) 4: 2K (default 0)");
1937 module_param_named(fw_restart, iwlwifi_mod_params.fw_restart, bool, 0444);
1938 MODULE_PARM_DESC(fw_restart, "restart firmware in case of error (default true)");
1939
1940 module_param_named(nvm_file, iwlwifi_mod_params.nvm_file, charp, 0444);
1941 MODULE_PARM_DESC(nvm_file, "NVM file name");
1942
1943 module_param_named(uapsd_disable, iwlwifi_mod_params.uapsd_disable, uint, 0644);
1944 MODULE_PARM_DESC(uapsd_disable,
1945 "disable U-APSD functionality bitmap 1: BSS 2: P2P Client (default: 3)");
1946 module_param_named(enable_ini, iwlwifi_mod_params.enable_ini,
1947 bool, S_IRUGO | S_IWUSR);
1948 MODULE_PARM_DESC(enable_ini,
1949 "Enable debug INI TLV FW debug infrastructure (default: true");
1950
1951 /*
1952 * set bt_coex_active to true, uCode will do kill/defer
1953 * every time the priority line is asserted (BT is sending signals on the
1954 * priority line in the PCIx).
1955 * set bt_coex_active to false, uCode will ignore the BT activity and
1956 * perform the normal operation
1957 *
1958 * User might experience transmit issue on some platform due to WiFi/BT
1959 * co-exist problem. The possible behaviors are:
1960 * Able to scan and finding all the available AP
1961 * Not able to associate with any AP
1962 * On those platforms, WiFi communication can be restored by set
1963 * "bt_coex_active" module parameter to "false"
1964 *
1965 * default: bt_coex_active = true (BT_COEX_ENABLE)
1966 */
1967 module_param_named(bt_coex_active, iwlwifi_mod_params.bt_coex_active,
1968 bool, 0444);
1969 MODULE_PARM_DESC(bt_coex_active, "enable wifi/bt co-exist (default: enable)");
1970
1971 module_param_named(led_mode, iwlwifi_mod_params.led_mode, int, 0444);
1972 MODULE_PARM_DESC(led_mode, "0=system default, "
1973 "1=On(RF On)/Off(RF Off), 2=blinking, 3=Off (default: 0)");
1974
1975 module_param_named(power_save, iwlwifi_mod_params.power_save, bool, 0444);
1976 MODULE_PARM_DESC(power_save,
1977 "enable WiFi power management (default: disable)");
1978
1979 module_param_named(power_level, iwlwifi_mod_params.power_level, int, 0444);
1980 MODULE_PARM_DESC(power_level,
1981 "default power save level (range from 1 - 5, default: 1)");
1982
1983 module_param_named(disable_11ac, iwlwifi_mod_params.disable_11ac, bool, 0444);
1984 MODULE_PARM_DESC(disable_11ac, "Disable VHT capabilities (default: false)");
1985
1986 module_param_named(remove_when_gone,
1987 iwlwifi_mod_params.remove_when_gone, bool,
1988 0444);
1989 MODULE_PARM_DESC(remove_when_gone,
1990 "Remove dev from PCIe bus if it is deemed inaccessible (default: false)");
1991
1992 module_param_named(disable_11ax, iwlwifi_mod_params.disable_11ax, bool,
1993 S_IRUGO);
1994 MODULE_PARM_DESC(disable_11ax, "Disable HE capabilities (default: false)");
1995