1 /******************************************************************************
2 *
3 * This file is provided under a dual BSD/GPLv2 license. When using or
4 * redistributing this file, you may do so under either license.
5 *
6 * GPL LICENSE SUMMARY
7 *
8 * Copyright(c) 2007 - 2014, 2018 - 2020 Intel Corporation. All rights reserved.
9 * Copyright(c) 2013 - 2015 Intel Mobile Communications GmbH
10 * Copyright(c) 2016 - 2017 Intel Deutschland GmbH
11 *
12 * This program is free software; you can redistribute it and/or modify
13 * it under the terms of version 2 of the GNU General Public License as
14 * published by the Free Software Foundation.
15 *
16 * This program is distributed in the hope that it will be useful, but
17 * WITHOUT ANY WARRANTY; without even the implied warranty of
18 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
19 * General Public License for more details.
20 *
21 * The full GNU General Public License is included in this distribution
22 * in the file called COPYING.
23 *
24 * Contact Information:
25 * Intel Linux Wireless <linuxwifi@intel.com>
26 * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
27 *
28 * BSD LICENSE
29 *
30 * Copyright(c) 2005 - 2014, 2018 - 2020 Intel Corporation. All rights reserved.
31 * Copyright(c) 2013 - 2015 Intel Mobile Communications GmbH
32 * Copyright(c) 2016 - 2017 Intel Deutschland GmbH
33 * All rights reserved.
34 *
35 * Redistribution and use in source and binary forms, with or without
36 * modification, are permitted provided that the following conditions
37 * are met:
38 *
39 * * Redistributions of source code must retain the above copyright
40 * notice, this list of conditions and the following disclaimer.
41 * * Redistributions in binary form must reproduce the above copyright
42 * notice, this list of conditions and the following disclaimer in
43 * the documentation and/or other materials provided with the
44 * distribution.
45 * * Neither the name Intel Corporation nor the names of its
46 * contributors may be used to endorse or promote products derived
47 * from this software without specific prior written permission.
48 *
49 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
50 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
51 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
52 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
53 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
54 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
55 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
56 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
57 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
58 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
59 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
60 *
61 *****************************************************************************/
62 #include <linux/completion.h>
63 #include <linux/dma-mapping.h>
64 #include <linux/firmware.h>
65 #include <linux/module.h>
66 #include <linux/vmalloc.h>
67
68 #include "iwl-drv.h"
69 #include "iwl-csr.h"
70 #include "iwl-debug.h"
71 #include "iwl-trans.h"
72 #include "iwl-op-mode.h"
73 #include "iwl-agn-hw.h"
74 #include "fw/img.h"
75 #include "iwl-dbg-tlv.h"
76 #include "iwl-config.h"
77 #include "iwl-modparams.h"
78 #include "fw/api/alive.h"
79 #include "fw/api/mac.h"
80
81 /******************************************************************************
82 *
83 * module boiler plate
84 *
85 ******************************************************************************/
86
87 #define DRV_DESCRIPTION "Intel(R) Wireless WiFi driver for Linux"
88 MODULE_DESCRIPTION(DRV_DESCRIPTION);
89 MODULE_AUTHOR(DRV_AUTHOR);
90 MODULE_LICENSE("GPL");
91
92 #ifdef CONFIG_IWLWIFI_DEBUGFS
93 static struct dentry *iwl_dbgfs_root;
94 #endif
95
96 /**
97 * struct iwl_drv - drv common data
98 * @list: list of drv structures using this opmode
99 * @fw: the iwl_fw structure
100 * @op_mode: the running op_mode
101 * @trans: transport layer
102 * @dev: for debug prints only
103 * @fw_index: firmware revision to try loading
104 * @firmware_name: composite filename of ucode file to load
105 * @request_firmware_complete: the firmware has been obtained from user space
106 * @dbgfs_drv: debugfs root directory entry
107 * @dbgfs_trans: debugfs transport directory entry
108 * @dbgfs_op_mode: debugfs op_mode directory entry
109 */
110 struct iwl_drv {
111 struct list_head list;
112 struct iwl_fw fw;
113
114 struct iwl_op_mode *op_mode;
115 struct iwl_trans *trans;
116 struct device *dev;
117
118 int fw_index; /* firmware we're trying to load */
119 char firmware_name[64]; /* name of firmware file to load */
120
121 struct completion request_firmware_complete;
122
123 #ifdef CONFIG_IWLWIFI_DEBUGFS
124 struct dentry *dbgfs_drv;
125 struct dentry *dbgfs_trans;
126 struct dentry *dbgfs_op_mode;
127 #endif
128 };
129
130 enum {
131 DVM_OP_MODE,
132 MVM_OP_MODE,
133 };
134
135 /* Protects the table contents, i.e. the ops pointer & drv list */
136 static struct mutex iwlwifi_opmode_table_mtx;
137 static struct iwlwifi_opmode_table {
138 const char *name; /* name: iwldvm, iwlmvm, etc */
139 const struct iwl_op_mode_ops *ops; /* pointer to op_mode ops */
140 struct list_head drv; /* list of devices using this op_mode */
141 } iwlwifi_opmode_table[] = { /* ops set when driver is initialized */
142 [DVM_OP_MODE] = { .name = "iwldvm", .ops = NULL },
143 [MVM_OP_MODE] = { .name = "iwlmvm", .ops = NULL },
144 };
145
146 #define IWL_DEFAULT_SCAN_CHANNELS 40
147
148 /*
149 * struct fw_sec: Just for the image parsing process.
150 * For the fw storage we are using struct fw_desc.
151 */
152 struct fw_sec {
153 const void *data; /* the sec data */
154 size_t size; /* section size */
155 u32 offset; /* offset of writing in the device */
156 };
157
iwl_free_fw_desc(struct iwl_drv * drv,struct fw_desc * desc)158 static void iwl_free_fw_desc(struct iwl_drv *drv, struct fw_desc *desc)
159 {
160 vfree(desc->data);
161 desc->data = NULL;
162 desc->len = 0;
163 }
164
iwl_free_fw_img(struct iwl_drv * drv,struct fw_img * img)165 static void iwl_free_fw_img(struct iwl_drv *drv, struct fw_img *img)
166 {
167 int i;
168 for (i = 0; i < img->num_sec; i++)
169 iwl_free_fw_desc(drv, &img->sec[i]);
170 kfree(img->sec);
171 }
172
iwl_dealloc_ucode(struct iwl_drv * drv)173 static void iwl_dealloc_ucode(struct iwl_drv *drv)
174 {
175 int i;
176
177 kfree(drv->fw.dbg.dest_tlv);
178 for (i = 0; i < ARRAY_SIZE(drv->fw.dbg.conf_tlv); i++)
179 kfree(drv->fw.dbg.conf_tlv[i]);
180 for (i = 0; i < ARRAY_SIZE(drv->fw.dbg.trigger_tlv); i++)
181 kfree(drv->fw.dbg.trigger_tlv[i]);
182 kfree(drv->fw.dbg.mem_tlv);
183 kfree(drv->fw.iml);
184 kfree(drv->fw.ucode_capa.cmd_versions);
185
186 for (i = 0; i < IWL_UCODE_TYPE_MAX; i++)
187 iwl_free_fw_img(drv, drv->fw.img + i);
188
189 /* clear the data for the aborted load case */
190 memset(&drv->fw, 0, sizeof(drv->fw));
191 }
192
iwl_alloc_fw_desc(struct iwl_drv * drv,struct fw_desc * desc,struct fw_sec * sec)193 static int iwl_alloc_fw_desc(struct iwl_drv *drv, struct fw_desc *desc,
194 struct fw_sec *sec)
195 {
196 void *data;
197
198 desc->data = NULL;
199
200 if (!sec || !sec->size)
201 return -EINVAL;
202
203 data = vmalloc(sec->size);
204 if (!data)
205 return -ENOMEM;
206
207 desc->len = sec->size;
208 desc->offset = sec->offset;
209 memcpy(data, sec->data, desc->len);
210 desc->data = data;
211
212 return 0;
213 }
214
215 static void iwl_req_fw_callback(const struct firmware *ucode_raw,
216 void *context);
217
iwl_request_firmware(struct iwl_drv * drv,bool first)218 static int iwl_request_firmware(struct iwl_drv *drv, bool first)
219 {
220 const struct iwl_cfg *cfg = drv->trans->cfg;
221 char tag[8];
222
223 if (drv->trans->trans_cfg->device_family == IWL_DEVICE_FAMILY_9000 &&
224 (CSR_HW_REV_STEP(drv->trans->hw_rev) != SILICON_B_STEP &&
225 CSR_HW_REV_STEP(drv->trans->hw_rev) != SILICON_C_STEP)) {
226 IWL_ERR(drv,
227 "Only HW steps B and C are currently supported (0x%0x)\n",
228 drv->trans->hw_rev);
229 return -EINVAL;
230 }
231
232 if (first) {
233 drv->fw_index = cfg->ucode_api_max;
234 sprintf(tag, "%d", drv->fw_index);
235 } else {
236 drv->fw_index--;
237 sprintf(tag, "%d", drv->fw_index);
238 }
239
240 if (drv->fw_index < cfg->ucode_api_min) {
241 IWL_ERR(drv, "no suitable firmware found!\n");
242
243 if (cfg->ucode_api_min == cfg->ucode_api_max) {
244 IWL_ERR(drv, "%s%d is required\n", cfg->fw_name_pre,
245 cfg->ucode_api_max);
246 } else {
247 IWL_ERR(drv, "minimum version required: %s%d\n",
248 cfg->fw_name_pre, cfg->ucode_api_min);
249 IWL_ERR(drv, "maximum version supported: %s%d\n",
250 cfg->fw_name_pre, cfg->ucode_api_max);
251 }
252
253 IWL_ERR(drv,
254 "check git://git.kernel.org/pub/scm/linux/kernel/git/firmware/linux-firmware.git\n");
255 return -ENOENT;
256 }
257
258 snprintf(drv->firmware_name, sizeof(drv->firmware_name), "%s%s.ucode",
259 cfg->fw_name_pre, tag);
260
261 IWL_DEBUG_FW_INFO(drv, "attempting to load firmware '%s'\n",
262 drv->firmware_name);
263
264 return request_firmware_nowait(THIS_MODULE, 1, drv->firmware_name,
265 drv->trans->dev,
266 GFP_KERNEL, drv, iwl_req_fw_callback);
267 }
268
269 struct fw_img_parsing {
270 struct fw_sec *sec;
271 int sec_counter;
272 };
273
274 /*
275 * struct fw_sec_parsing: to extract fw section and it's offset from tlv
276 */
277 struct fw_sec_parsing {
278 __le32 offset;
279 const u8 data[];
280 } __packed;
281
282 /**
283 * struct iwl_tlv_calib_data - parse the default calib data from TLV
284 *
285 * @ucode_type: the uCode to which the following default calib relates.
286 * @calib: default calibrations.
287 */
288 struct iwl_tlv_calib_data {
289 __le32 ucode_type;
290 struct iwl_tlv_calib_ctrl calib;
291 } __packed;
292
293 struct iwl_firmware_pieces {
294 struct fw_img_parsing img[IWL_UCODE_TYPE_MAX];
295
296 u32 init_evtlog_ptr, init_evtlog_size, init_errlog_ptr;
297 u32 inst_evtlog_ptr, inst_evtlog_size, inst_errlog_ptr;
298
299 /* FW debug data parsed for driver usage */
300 bool dbg_dest_tlv_init;
301 u8 *dbg_dest_ver;
302 union {
303 struct iwl_fw_dbg_dest_tlv *dbg_dest_tlv;
304 struct iwl_fw_dbg_dest_tlv_v1 *dbg_dest_tlv_v1;
305 };
306 struct iwl_fw_dbg_conf_tlv *dbg_conf_tlv[FW_DBG_CONF_MAX];
307 size_t dbg_conf_tlv_len[FW_DBG_CONF_MAX];
308 struct iwl_fw_dbg_trigger_tlv *dbg_trigger_tlv[FW_DBG_TRIGGER_MAX];
309 size_t dbg_trigger_tlv_len[FW_DBG_TRIGGER_MAX];
310 struct iwl_fw_dbg_mem_seg_tlv *dbg_mem_tlv;
311 size_t n_mem_tlv;
312 };
313
314 /*
315 * These functions are just to extract uCode section data from the pieces
316 * structure.
317 */
get_sec(struct iwl_firmware_pieces * pieces,enum iwl_ucode_type type,int sec)318 static struct fw_sec *get_sec(struct iwl_firmware_pieces *pieces,
319 enum iwl_ucode_type type,
320 int sec)
321 {
322 return &pieces->img[type].sec[sec];
323 }
324
alloc_sec_data(struct iwl_firmware_pieces * pieces,enum iwl_ucode_type type,int sec)325 static void alloc_sec_data(struct iwl_firmware_pieces *pieces,
326 enum iwl_ucode_type type,
327 int sec)
328 {
329 struct fw_img_parsing *img = &pieces->img[type];
330 struct fw_sec *sec_memory;
331 int size = sec + 1;
332 size_t alloc_size = sizeof(*img->sec) * size;
333
334 if (img->sec && img->sec_counter >= size)
335 return;
336
337 sec_memory = krealloc(img->sec, alloc_size, GFP_KERNEL);
338 if (!sec_memory)
339 return;
340
341 img->sec = sec_memory;
342 img->sec_counter = size;
343 }
344
set_sec_data(struct iwl_firmware_pieces * pieces,enum iwl_ucode_type type,int sec,const void * data)345 static void set_sec_data(struct iwl_firmware_pieces *pieces,
346 enum iwl_ucode_type type,
347 int sec,
348 const void *data)
349 {
350 alloc_sec_data(pieces, type, sec);
351
352 pieces->img[type].sec[sec].data = data;
353 }
354
set_sec_size(struct iwl_firmware_pieces * pieces,enum iwl_ucode_type type,int sec,size_t size)355 static void set_sec_size(struct iwl_firmware_pieces *pieces,
356 enum iwl_ucode_type type,
357 int sec,
358 size_t size)
359 {
360 alloc_sec_data(pieces, type, sec);
361
362 pieces->img[type].sec[sec].size = size;
363 }
364
get_sec_size(struct iwl_firmware_pieces * pieces,enum iwl_ucode_type type,int sec)365 static size_t get_sec_size(struct iwl_firmware_pieces *pieces,
366 enum iwl_ucode_type type,
367 int sec)
368 {
369 return pieces->img[type].sec[sec].size;
370 }
371
set_sec_offset(struct iwl_firmware_pieces * pieces,enum iwl_ucode_type type,int sec,u32 offset)372 static void set_sec_offset(struct iwl_firmware_pieces *pieces,
373 enum iwl_ucode_type type,
374 int sec,
375 u32 offset)
376 {
377 alloc_sec_data(pieces, type, sec);
378
379 pieces->img[type].sec[sec].offset = offset;
380 }
381
iwl_store_cscheme(struct iwl_fw * fw,const u8 * data,const u32 len)382 static int iwl_store_cscheme(struct iwl_fw *fw, const u8 *data, const u32 len)
383 {
384 int i, j;
385 struct iwl_fw_cscheme_list *l = (struct iwl_fw_cscheme_list *)data;
386 struct iwl_fw_cipher_scheme *fwcs;
387
388 if (len < sizeof(*l) ||
389 len < sizeof(l->size) + l->size * sizeof(l->cs[0]))
390 return -EINVAL;
391
392 for (i = 0, j = 0; i < IWL_UCODE_MAX_CS && i < l->size; i++) {
393 fwcs = &l->cs[j];
394
395 /* we skip schemes with zero cipher suite selector */
396 if (!fwcs->cipher)
397 continue;
398
399 fw->cs[j++] = *fwcs;
400 }
401
402 return 0;
403 }
404
405 /*
406 * Gets uCode section from tlv.
407 */
iwl_store_ucode_sec(struct iwl_firmware_pieces * pieces,const void * data,enum iwl_ucode_type type,int size)408 static int iwl_store_ucode_sec(struct iwl_firmware_pieces *pieces,
409 const void *data, enum iwl_ucode_type type,
410 int size)
411 {
412 struct fw_img_parsing *img;
413 struct fw_sec *sec;
414 struct fw_sec_parsing *sec_parse;
415 size_t alloc_size;
416
417 if (WARN_ON(!pieces || !data || type >= IWL_UCODE_TYPE_MAX))
418 return -1;
419
420 sec_parse = (struct fw_sec_parsing *)data;
421
422 img = &pieces->img[type];
423
424 alloc_size = sizeof(*img->sec) * (img->sec_counter + 1);
425 sec = krealloc(img->sec, alloc_size, GFP_KERNEL);
426 if (!sec)
427 return -ENOMEM;
428 img->sec = sec;
429
430 sec = &img->sec[img->sec_counter];
431
432 sec->offset = le32_to_cpu(sec_parse->offset);
433 sec->data = sec_parse->data;
434 sec->size = size - sizeof(sec_parse->offset);
435
436 ++img->sec_counter;
437
438 return 0;
439 }
440
iwl_set_default_calib(struct iwl_drv * drv,const u8 * data)441 static int iwl_set_default_calib(struct iwl_drv *drv, const u8 *data)
442 {
443 struct iwl_tlv_calib_data *def_calib =
444 (struct iwl_tlv_calib_data *)data;
445 u32 ucode_type = le32_to_cpu(def_calib->ucode_type);
446 if (ucode_type >= IWL_UCODE_TYPE_MAX) {
447 IWL_ERR(drv, "Wrong ucode_type %u for default calibration.\n",
448 ucode_type);
449 return -EINVAL;
450 }
451 drv->fw.default_calib[ucode_type].flow_trigger =
452 def_calib->calib.flow_trigger;
453 drv->fw.default_calib[ucode_type].event_trigger =
454 def_calib->calib.event_trigger;
455
456 return 0;
457 }
458
iwl_set_ucode_api_flags(struct iwl_drv * drv,const u8 * data,struct iwl_ucode_capabilities * capa)459 static void iwl_set_ucode_api_flags(struct iwl_drv *drv, const u8 *data,
460 struct iwl_ucode_capabilities *capa)
461 {
462 const struct iwl_ucode_api *ucode_api = (void *)data;
463 u32 api_index = le32_to_cpu(ucode_api->api_index);
464 u32 api_flags = le32_to_cpu(ucode_api->api_flags);
465 int i;
466
467 if (api_index >= DIV_ROUND_UP(NUM_IWL_UCODE_TLV_API, 32)) {
468 IWL_WARN(drv,
469 "api flags index %d larger than supported by driver\n",
470 api_index);
471 return;
472 }
473
474 for (i = 0; i < 32; i++) {
475 if (api_flags & BIT(i))
476 __set_bit(i + 32 * api_index, capa->_api);
477 }
478 }
479
iwl_set_ucode_capabilities(struct iwl_drv * drv,const u8 * data,struct iwl_ucode_capabilities * capa)480 static void iwl_set_ucode_capabilities(struct iwl_drv *drv, const u8 *data,
481 struct iwl_ucode_capabilities *capa)
482 {
483 const struct iwl_ucode_capa *ucode_capa = (void *)data;
484 u32 api_index = le32_to_cpu(ucode_capa->api_index);
485 u32 api_flags = le32_to_cpu(ucode_capa->api_capa);
486 int i;
487
488 if (api_index >= DIV_ROUND_UP(NUM_IWL_UCODE_TLV_CAPA, 32)) {
489 IWL_WARN(drv,
490 "capa flags index %d larger than supported by driver\n",
491 api_index);
492 return;
493 }
494
495 for (i = 0; i < 32; i++) {
496 if (api_flags & BIT(i))
497 __set_bit(i + 32 * api_index, capa->_capa);
498 }
499 }
500
iwl_reduced_fw_name(struct iwl_drv * drv)501 static const char *iwl_reduced_fw_name(struct iwl_drv *drv)
502 {
503 const char *name = drv->firmware_name;
504
505 if (strncmp(name, "iwlwifi-", 8) == 0)
506 name += 8;
507
508 return name;
509 }
510
iwl_parse_v1_v2_firmware(struct iwl_drv * drv,const struct firmware * ucode_raw,struct iwl_firmware_pieces * pieces)511 static int iwl_parse_v1_v2_firmware(struct iwl_drv *drv,
512 const struct firmware *ucode_raw,
513 struct iwl_firmware_pieces *pieces)
514 {
515 struct iwl_ucode_header *ucode = (void *)ucode_raw->data;
516 u32 api_ver, hdr_size, build;
517 char buildstr[25];
518 const u8 *src;
519
520 drv->fw.ucode_ver = le32_to_cpu(ucode->ver);
521 api_ver = IWL_UCODE_API(drv->fw.ucode_ver);
522
523 switch (api_ver) {
524 default:
525 hdr_size = 28;
526 if (ucode_raw->size < hdr_size) {
527 IWL_ERR(drv, "File size too small!\n");
528 return -EINVAL;
529 }
530 build = le32_to_cpu(ucode->u.v2.build);
531 set_sec_size(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_INST,
532 le32_to_cpu(ucode->u.v2.inst_size));
533 set_sec_size(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_DATA,
534 le32_to_cpu(ucode->u.v2.data_size));
535 set_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_INST,
536 le32_to_cpu(ucode->u.v2.init_size));
537 set_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_DATA,
538 le32_to_cpu(ucode->u.v2.init_data_size));
539 src = ucode->u.v2.data;
540 break;
541 case 0:
542 case 1:
543 case 2:
544 hdr_size = 24;
545 if (ucode_raw->size < hdr_size) {
546 IWL_ERR(drv, "File size too small!\n");
547 return -EINVAL;
548 }
549 build = 0;
550 set_sec_size(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_INST,
551 le32_to_cpu(ucode->u.v1.inst_size));
552 set_sec_size(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_DATA,
553 le32_to_cpu(ucode->u.v1.data_size));
554 set_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_INST,
555 le32_to_cpu(ucode->u.v1.init_size));
556 set_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_DATA,
557 le32_to_cpu(ucode->u.v1.init_data_size));
558 src = ucode->u.v1.data;
559 break;
560 }
561
562 if (build)
563 sprintf(buildstr, " build %u", build);
564 else
565 buildstr[0] = '\0';
566
567 snprintf(drv->fw.fw_version,
568 sizeof(drv->fw.fw_version),
569 "%u.%u.%u.%u%s %s",
570 IWL_UCODE_MAJOR(drv->fw.ucode_ver),
571 IWL_UCODE_MINOR(drv->fw.ucode_ver),
572 IWL_UCODE_API(drv->fw.ucode_ver),
573 IWL_UCODE_SERIAL(drv->fw.ucode_ver),
574 buildstr, iwl_reduced_fw_name(drv));
575
576 /* Verify size of file vs. image size info in file's header */
577
578 if (ucode_raw->size != hdr_size +
579 get_sec_size(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_INST) +
580 get_sec_size(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_DATA) +
581 get_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_INST) +
582 get_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_DATA)) {
583
584 IWL_ERR(drv,
585 "uCode file size %d does not match expected size\n",
586 (int)ucode_raw->size);
587 return -EINVAL;
588 }
589
590
591 set_sec_data(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_INST, src);
592 src += get_sec_size(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_INST);
593 set_sec_offset(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_INST,
594 IWLAGN_RTC_INST_LOWER_BOUND);
595 set_sec_data(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_DATA, src);
596 src += get_sec_size(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_DATA);
597 set_sec_offset(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_DATA,
598 IWLAGN_RTC_DATA_LOWER_BOUND);
599 set_sec_data(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_INST, src);
600 src += get_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_INST);
601 set_sec_offset(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_INST,
602 IWLAGN_RTC_INST_LOWER_BOUND);
603 set_sec_data(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_DATA, src);
604 src += get_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_DATA);
605 set_sec_offset(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_DATA,
606 IWLAGN_RTC_DATA_LOWER_BOUND);
607 return 0;
608 }
609
610 #define FW_ADDR_CACHE_CONTROL 0xC0000000
611
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)612 static int iwl_parse_tlv_firmware(struct iwl_drv *drv,
613 const struct firmware *ucode_raw,
614 struct iwl_firmware_pieces *pieces,
615 struct iwl_ucode_capabilities *capa,
616 bool *usniffer_images)
617 {
618 struct iwl_tlv_ucode_header *ucode = (void *)ucode_raw->data;
619 struct iwl_ucode_tlv *tlv;
620 size_t len = ucode_raw->size;
621 const u8 *data;
622 u32 tlv_len;
623 u32 usniffer_img;
624 enum iwl_ucode_tlv_type tlv_type;
625 const u8 *tlv_data;
626 char buildstr[25];
627 u32 build, paging_mem_size;
628 int num_of_cpus;
629 bool usniffer_req = false;
630
631 if (len < sizeof(*ucode)) {
632 IWL_ERR(drv, "uCode has invalid length: %zd\n", len);
633 return -EINVAL;
634 }
635
636 if (ucode->magic != cpu_to_le32(IWL_TLV_UCODE_MAGIC)) {
637 IWL_ERR(drv, "invalid uCode magic: 0X%x\n",
638 le32_to_cpu(ucode->magic));
639 return -EINVAL;
640 }
641
642 drv->fw.ucode_ver = le32_to_cpu(ucode->ver);
643 memcpy(drv->fw.human_readable, ucode->human_readable,
644 sizeof(drv->fw.human_readable));
645 build = le32_to_cpu(ucode->build);
646
647 if (build)
648 sprintf(buildstr, " build %u", build);
649 else
650 buildstr[0] = '\0';
651
652 snprintf(drv->fw.fw_version,
653 sizeof(drv->fw.fw_version),
654 "%u.%u.%u.%u%s %s",
655 IWL_UCODE_MAJOR(drv->fw.ucode_ver),
656 IWL_UCODE_MINOR(drv->fw.ucode_ver),
657 IWL_UCODE_API(drv->fw.ucode_ver),
658 IWL_UCODE_SERIAL(drv->fw.ucode_ver),
659 buildstr, iwl_reduced_fw_name(drv));
660
661 data = ucode->data;
662
663 len -= sizeof(*ucode);
664
665 while (len >= sizeof(*tlv)) {
666 len -= sizeof(*tlv);
667 tlv = (void *)data;
668
669 tlv_len = le32_to_cpu(tlv->length);
670 tlv_type = le32_to_cpu(tlv->type);
671 tlv_data = tlv->data;
672
673 if (len < tlv_len) {
674 IWL_ERR(drv, "invalid TLV len: %zd/%u\n",
675 len, tlv_len);
676 return -EINVAL;
677 }
678 len -= ALIGN(tlv_len, 4);
679 data += sizeof(*tlv) + ALIGN(tlv_len, 4);
680
681 switch (tlv_type) {
682 case IWL_UCODE_TLV_INST:
683 set_sec_data(pieces, IWL_UCODE_REGULAR,
684 IWL_UCODE_SECTION_INST, tlv_data);
685 set_sec_size(pieces, IWL_UCODE_REGULAR,
686 IWL_UCODE_SECTION_INST, tlv_len);
687 set_sec_offset(pieces, IWL_UCODE_REGULAR,
688 IWL_UCODE_SECTION_INST,
689 IWLAGN_RTC_INST_LOWER_BOUND);
690 break;
691 case IWL_UCODE_TLV_DATA:
692 set_sec_data(pieces, IWL_UCODE_REGULAR,
693 IWL_UCODE_SECTION_DATA, tlv_data);
694 set_sec_size(pieces, IWL_UCODE_REGULAR,
695 IWL_UCODE_SECTION_DATA, tlv_len);
696 set_sec_offset(pieces, IWL_UCODE_REGULAR,
697 IWL_UCODE_SECTION_DATA,
698 IWLAGN_RTC_DATA_LOWER_BOUND);
699 break;
700 case IWL_UCODE_TLV_INIT:
701 set_sec_data(pieces, IWL_UCODE_INIT,
702 IWL_UCODE_SECTION_INST, tlv_data);
703 set_sec_size(pieces, IWL_UCODE_INIT,
704 IWL_UCODE_SECTION_INST, tlv_len);
705 set_sec_offset(pieces, IWL_UCODE_INIT,
706 IWL_UCODE_SECTION_INST,
707 IWLAGN_RTC_INST_LOWER_BOUND);
708 break;
709 case IWL_UCODE_TLV_INIT_DATA:
710 set_sec_data(pieces, IWL_UCODE_INIT,
711 IWL_UCODE_SECTION_DATA, tlv_data);
712 set_sec_size(pieces, IWL_UCODE_INIT,
713 IWL_UCODE_SECTION_DATA, tlv_len);
714 set_sec_offset(pieces, IWL_UCODE_INIT,
715 IWL_UCODE_SECTION_DATA,
716 IWLAGN_RTC_DATA_LOWER_BOUND);
717 break;
718 case IWL_UCODE_TLV_BOOT:
719 IWL_ERR(drv, "Found unexpected BOOT ucode\n");
720 break;
721 case IWL_UCODE_TLV_PROBE_MAX_LEN:
722 if (tlv_len != sizeof(u32))
723 goto invalid_tlv_len;
724 capa->max_probe_length =
725 le32_to_cpup((__le32 *)tlv_data);
726 break;
727 case IWL_UCODE_TLV_PAN:
728 if (tlv_len)
729 goto invalid_tlv_len;
730 capa->flags |= IWL_UCODE_TLV_FLAGS_PAN;
731 break;
732 case IWL_UCODE_TLV_FLAGS:
733 /* must be at least one u32 */
734 if (tlv_len < sizeof(u32))
735 goto invalid_tlv_len;
736 /* and a proper number of u32s */
737 if (tlv_len % sizeof(u32))
738 goto invalid_tlv_len;
739 /*
740 * This driver only reads the first u32 as
741 * right now no more features are defined,
742 * if that changes then either the driver
743 * will not work with the new firmware, or
744 * it'll not take advantage of new features.
745 */
746 capa->flags = le32_to_cpup((__le32 *)tlv_data);
747 break;
748 case IWL_UCODE_TLV_API_CHANGES_SET:
749 if (tlv_len != sizeof(struct iwl_ucode_api))
750 goto invalid_tlv_len;
751 iwl_set_ucode_api_flags(drv, tlv_data, capa);
752 break;
753 case IWL_UCODE_TLV_ENABLED_CAPABILITIES:
754 if (tlv_len != sizeof(struct iwl_ucode_capa))
755 goto invalid_tlv_len;
756 iwl_set_ucode_capabilities(drv, tlv_data, capa);
757 break;
758 case IWL_UCODE_TLV_INIT_EVTLOG_PTR:
759 if (tlv_len != sizeof(u32))
760 goto invalid_tlv_len;
761 pieces->init_evtlog_ptr =
762 le32_to_cpup((__le32 *)tlv_data);
763 break;
764 case IWL_UCODE_TLV_INIT_EVTLOG_SIZE:
765 if (tlv_len != sizeof(u32))
766 goto invalid_tlv_len;
767 pieces->init_evtlog_size =
768 le32_to_cpup((__le32 *)tlv_data);
769 break;
770 case IWL_UCODE_TLV_INIT_ERRLOG_PTR:
771 if (tlv_len != sizeof(u32))
772 goto invalid_tlv_len;
773 pieces->init_errlog_ptr =
774 le32_to_cpup((__le32 *)tlv_data);
775 break;
776 case IWL_UCODE_TLV_RUNT_EVTLOG_PTR:
777 if (tlv_len != sizeof(u32))
778 goto invalid_tlv_len;
779 pieces->inst_evtlog_ptr =
780 le32_to_cpup((__le32 *)tlv_data);
781 break;
782 case IWL_UCODE_TLV_RUNT_EVTLOG_SIZE:
783 if (tlv_len != sizeof(u32))
784 goto invalid_tlv_len;
785 pieces->inst_evtlog_size =
786 le32_to_cpup((__le32 *)tlv_data);
787 break;
788 case IWL_UCODE_TLV_RUNT_ERRLOG_PTR:
789 if (tlv_len != sizeof(u32))
790 goto invalid_tlv_len;
791 pieces->inst_errlog_ptr =
792 le32_to_cpup((__le32 *)tlv_data);
793 break;
794 case IWL_UCODE_TLV_ENHANCE_SENS_TBL:
795 if (tlv_len)
796 goto invalid_tlv_len;
797 drv->fw.enhance_sensitivity_table = true;
798 break;
799 case IWL_UCODE_TLV_WOWLAN_INST:
800 set_sec_data(pieces, IWL_UCODE_WOWLAN,
801 IWL_UCODE_SECTION_INST, tlv_data);
802 set_sec_size(pieces, IWL_UCODE_WOWLAN,
803 IWL_UCODE_SECTION_INST, tlv_len);
804 set_sec_offset(pieces, IWL_UCODE_WOWLAN,
805 IWL_UCODE_SECTION_INST,
806 IWLAGN_RTC_INST_LOWER_BOUND);
807 break;
808 case IWL_UCODE_TLV_WOWLAN_DATA:
809 set_sec_data(pieces, IWL_UCODE_WOWLAN,
810 IWL_UCODE_SECTION_DATA, tlv_data);
811 set_sec_size(pieces, IWL_UCODE_WOWLAN,
812 IWL_UCODE_SECTION_DATA, tlv_len);
813 set_sec_offset(pieces, IWL_UCODE_WOWLAN,
814 IWL_UCODE_SECTION_DATA,
815 IWLAGN_RTC_DATA_LOWER_BOUND);
816 break;
817 case IWL_UCODE_TLV_PHY_CALIBRATION_SIZE:
818 if (tlv_len != sizeof(u32))
819 goto invalid_tlv_len;
820 capa->standard_phy_calibration_size =
821 le32_to_cpup((__le32 *)tlv_data);
822 break;
823 case IWL_UCODE_TLV_SEC_RT:
824 iwl_store_ucode_sec(pieces, tlv_data, IWL_UCODE_REGULAR,
825 tlv_len);
826 drv->fw.type = IWL_FW_MVM;
827 break;
828 case IWL_UCODE_TLV_SEC_INIT:
829 iwl_store_ucode_sec(pieces, tlv_data, IWL_UCODE_INIT,
830 tlv_len);
831 drv->fw.type = IWL_FW_MVM;
832 break;
833 case IWL_UCODE_TLV_SEC_WOWLAN:
834 iwl_store_ucode_sec(pieces, tlv_data, IWL_UCODE_WOWLAN,
835 tlv_len);
836 drv->fw.type = IWL_FW_MVM;
837 break;
838 case IWL_UCODE_TLV_DEF_CALIB:
839 if (tlv_len != sizeof(struct iwl_tlv_calib_data))
840 goto invalid_tlv_len;
841 if (iwl_set_default_calib(drv, tlv_data))
842 goto tlv_error;
843 break;
844 case IWL_UCODE_TLV_PHY_SKU:
845 if (tlv_len != sizeof(u32))
846 goto invalid_tlv_len;
847 drv->fw.phy_config = le32_to_cpup((__le32 *)tlv_data);
848 drv->fw.valid_tx_ant = (drv->fw.phy_config &
849 FW_PHY_CFG_TX_CHAIN) >>
850 FW_PHY_CFG_TX_CHAIN_POS;
851 drv->fw.valid_rx_ant = (drv->fw.phy_config &
852 FW_PHY_CFG_RX_CHAIN) >>
853 FW_PHY_CFG_RX_CHAIN_POS;
854 break;
855 case IWL_UCODE_TLV_SECURE_SEC_RT:
856 iwl_store_ucode_sec(pieces, tlv_data, IWL_UCODE_REGULAR,
857 tlv_len);
858 drv->fw.type = IWL_FW_MVM;
859 break;
860 case IWL_UCODE_TLV_SECURE_SEC_INIT:
861 iwl_store_ucode_sec(pieces, tlv_data, IWL_UCODE_INIT,
862 tlv_len);
863 drv->fw.type = IWL_FW_MVM;
864 break;
865 case IWL_UCODE_TLV_SECURE_SEC_WOWLAN:
866 iwl_store_ucode_sec(pieces, tlv_data, IWL_UCODE_WOWLAN,
867 tlv_len);
868 drv->fw.type = IWL_FW_MVM;
869 break;
870 case IWL_UCODE_TLV_NUM_OF_CPU:
871 if (tlv_len != sizeof(u32))
872 goto invalid_tlv_len;
873 num_of_cpus =
874 le32_to_cpup((__le32 *)tlv_data);
875
876 if (num_of_cpus == 2) {
877 drv->fw.img[IWL_UCODE_REGULAR].is_dual_cpus =
878 true;
879 drv->fw.img[IWL_UCODE_INIT].is_dual_cpus =
880 true;
881 drv->fw.img[IWL_UCODE_WOWLAN].is_dual_cpus =
882 true;
883 } else if ((num_of_cpus > 2) || (num_of_cpus < 1)) {
884 IWL_ERR(drv, "Driver support upto 2 CPUs\n");
885 return -EINVAL;
886 }
887 break;
888 case IWL_UCODE_TLV_CSCHEME:
889 if (iwl_store_cscheme(&drv->fw, tlv_data, tlv_len))
890 goto invalid_tlv_len;
891 break;
892 case IWL_UCODE_TLV_N_SCAN_CHANNELS:
893 if (tlv_len != sizeof(u32))
894 goto invalid_tlv_len;
895 capa->n_scan_channels =
896 le32_to_cpup((__le32 *)tlv_data);
897 break;
898 case IWL_UCODE_TLV_FW_VERSION: {
899 __le32 *ptr = (void *)tlv_data;
900 u32 major, minor;
901 u8 local_comp;
902
903 if (tlv_len != sizeof(u32) * 3)
904 goto invalid_tlv_len;
905
906 major = le32_to_cpup(ptr++);
907 minor = le32_to_cpup(ptr++);
908 local_comp = le32_to_cpup(ptr);
909
910 if (major >= 35)
911 snprintf(drv->fw.fw_version,
912 sizeof(drv->fw.fw_version),
913 "%u.%08x.%u %s", major, minor,
914 local_comp, iwl_reduced_fw_name(drv));
915 else
916 snprintf(drv->fw.fw_version,
917 sizeof(drv->fw.fw_version),
918 "%u.%u.%u %s", major, minor,
919 local_comp, iwl_reduced_fw_name(drv));
920 break;
921 }
922 case IWL_UCODE_TLV_FW_DBG_DEST: {
923 struct iwl_fw_dbg_dest_tlv *dest = NULL;
924 struct iwl_fw_dbg_dest_tlv_v1 *dest_v1 = NULL;
925 u8 mon_mode;
926
927 pieces->dbg_dest_ver = (u8 *)tlv_data;
928 if (*pieces->dbg_dest_ver == 1) {
929 dest = (void *)tlv_data;
930 } else if (*pieces->dbg_dest_ver == 0) {
931 dest_v1 = (void *)tlv_data;
932 } else {
933 IWL_ERR(drv,
934 "The version is %d, and it is invalid\n",
935 *pieces->dbg_dest_ver);
936 break;
937 }
938
939 if (pieces->dbg_dest_tlv_init) {
940 IWL_ERR(drv,
941 "dbg destination ignored, already exists\n");
942 break;
943 }
944
945 pieces->dbg_dest_tlv_init = true;
946
947 if (dest_v1) {
948 pieces->dbg_dest_tlv_v1 = dest_v1;
949 mon_mode = dest_v1->monitor_mode;
950 } else {
951 pieces->dbg_dest_tlv = dest;
952 mon_mode = dest->monitor_mode;
953 }
954
955 IWL_INFO(drv, "Found debug destination: %s\n",
956 get_fw_dbg_mode_string(mon_mode));
957
958 drv->fw.dbg.n_dest_reg = (dest_v1) ?
959 tlv_len -
960 offsetof(struct iwl_fw_dbg_dest_tlv_v1,
961 reg_ops) :
962 tlv_len -
963 offsetof(struct iwl_fw_dbg_dest_tlv,
964 reg_ops);
965
966 drv->fw.dbg.n_dest_reg /=
967 sizeof(drv->fw.dbg.dest_tlv->reg_ops[0]);
968
969 break;
970 }
971 case IWL_UCODE_TLV_FW_DBG_CONF: {
972 struct iwl_fw_dbg_conf_tlv *conf = (void *)tlv_data;
973
974 if (!pieces->dbg_dest_tlv_init) {
975 IWL_ERR(drv,
976 "Ignore dbg config %d - no destination configured\n",
977 conf->id);
978 break;
979 }
980
981 if (conf->id >= ARRAY_SIZE(drv->fw.dbg.conf_tlv)) {
982 IWL_ERR(drv,
983 "Skip unknown configuration: %d\n",
984 conf->id);
985 break;
986 }
987
988 if (pieces->dbg_conf_tlv[conf->id]) {
989 IWL_ERR(drv,
990 "Ignore duplicate dbg config %d\n",
991 conf->id);
992 break;
993 }
994
995 if (conf->usniffer)
996 usniffer_req = true;
997
998 IWL_INFO(drv, "Found debug configuration: %d\n",
999 conf->id);
1000
1001 pieces->dbg_conf_tlv[conf->id] = conf;
1002 pieces->dbg_conf_tlv_len[conf->id] = tlv_len;
1003 break;
1004 }
1005 case IWL_UCODE_TLV_FW_DBG_TRIGGER: {
1006 struct iwl_fw_dbg_trigger_tlv *trigger =
1007 (void *)tlv_data;
1008 u32 trigger_id = le32_to_cpu(trigger->id);
1009
1010 if (trigger_id >= ARRAY_SIZE(drv->fw.dbg.trigger_tlv)) {
1011 IWL_ERR(drv,
1012 "Skip unknown trigger: %u\n",
1013 trigger->id);
1014 break;
1015 }
1016
1017 if (pieces->dbg_trigger_tlv[trigger_id]) {
1018 IWL_ERR(drv,
1019 "Ignore duplicate dbg trigger %u\n",
1020 trigger->id);
1021 break;
1022 }
1023
1024 IWL_INFO(drv, "Found debug trigger: %u\n", trigger->id);
1025
1026 pieces->dbg_trigger_tlv[trigger_id] = trigger;
1027 pieces->dbg_trigger_tlv_len[trigger_id] = tlv_len;
1028 break;
1029 }
1030 case IWL_UCODE_TLV_FW_DBG_DUMP_LST: {
1031 if (tlv_len != sizeof(u32)) {
1032 IWL_ERR(drv,
1033 "dbg lst mask size incorrect, skip\n");
1034 break;
1035 }
1036
1037 drv->fw.dbg.dump_mask =
1038 le32_to_cpup((__le32 *)tlv_data);
1039 break;
1040 }
1041 case IWL_UCODE_TLV_SEC_RT_USNIFFER:
1042 *usniffer_images = true;
1043 iwl_store_ucode_sec(pieces, tlv_data,
1044 IWL_UCODE_REGULAR_USNIFFER,
1045 tlv_len);
1046 break;
1047 case IWL_UCODE_TLV_PAGING:
1048 if (tlv_len != sizeof(u32))
1049 goto invalid_tlv_len;
1050 paging_mem_size = le32_to_cpup((__le32 *)tlv_data);
1051
1052 IWL_DEBUG_FW(drv,
1053 "Paging: paging enabled (size = %u bytes)\n",
1054 paging_mem_size);
1055
1056 if (paging_mem_size > MAX_PAGING_IMAGE_SIZE) {
1057 IWL_ERR(drv,
1058 "Paging: driver supports up to %lu bytes for paging image\n",
1059 MAX_PAGING_IMAGE_SIZE);
1060 return -EINVAL;
1061 }
1062
1063 if (paging_mem_size & (FW_PAGING_SIZE - 1)) {
1064 IWL_ERR(drv,
1065 "Paging: image isn't multiple %lu\n",
1066 FW_PAGING_SIZE);
1067 return -EINVAL;
1068 }
1069
1070 drv->fw.img[IWL_UCODE_REGULAR].paging_mem_size =
1071 paging_mem_size;
1072 usniffer_img = IWL_UCODE_REGULAR_USNIFFER;
1073 drv->fw.img[usniffer_img].paging_mem_size =
1074 paging_mem_size;
1075 break;
1076 case IWL_UCODE_TLV_FW_GSCAN_CAPA:
1077 /* ignored */
1078 break;
1079 case IWL_UCODE_TLV_FW_MEM_SEG: {
1080 struct iwl_fw_dbg_mem_seg_tlv *dbg_mem =
1081 (void *)tlv_data;
1082 size_t size;
1083 struct iwl_fw_dbg_mem_seg_tlv *n;
1084
1085 if (tlv_len != (sizeof(*dbg_mem)))
1086 goto invalid_tlv_len;
1087
1088 IWL_DEBUG_INFO(drv, "Found debug memory segment: %u\n",
1089 dbg_mem->data_type);
1090
1091 size = sizeof(*pieces->dbg_mem_tlv) *
1092 (pieces->n_mem_tlv + 1);
1093 n = krealloc(pieces->dbg_mem_tlv, size, GFP_KERNEL);
1094 if (!n)
1095 return -ENOMEM;
1096 pieces->dbg_mem_tlv = n;
1097 pieces->dbg_mem_tlv[pieces->n_mem_tlv] = *dbg_mem;
1098 pieces->n_mem_tlv++;
1099 break;
1100 }
1101 case IWL_UCODE_TLV_IML: {
1102 drv->fw.iml_len = tlv_len;
1103 drv->fw.iml = kmemdup(tlv_data, tlv_len, GFP_KERNEL);
1104 if (!drv->fw.iml)
1105 return -ENOMEM;
1106 break;
1107 }
1108 case IWL_UCODE_TLV_FW_RECOVERY_INFO: {
1109 struct {
1110 __le32 buf_addr;
1111 __le32 buf_size;
1112 } *recov_info = (void *)tlv_data;
1113
1114 if (tlv_len != sizeof(*recov_info))
1115 goto invalid_tlv_len;
1116 capa->error_log_addr =
1117 le32_to_cpu(recov_info->buf_addr);
1118 capa->error_log_size =
1119 le32_to_cpu(recov_info->buf_size);
1120 }
1121 break;
1122 case IWL_UCODE_TLV_FW_FSEQ_VERSION: {
1123 struct {
1124 u8 version[32];
1125 u8 sha1[20];
1126 } *fseq_ver = (void *)tlv_data;
1127
1128 if (tlv_len != sizeof(*fseq_ver))
1129 goto invalid_tlv_len;
1130 IWL_INFO(drv, "TLV_FW_FSEQ_VERSION: %s\n",
1131 fseq_ver->version);
1132 }
1133 break;
1134 case IWL_UCODE_TLV_FW_NUM_STATIONS:
1135 if (tlv_len != sizeof(u32))
1136 goto invalid_tlv_len;
1137 if (le32_to_cpup((__le32 *)tlv_data) >
1138 IWL_MVM_STATION_COUNT_MAX) {
1139 IWL_ERR(drv,
1140 "%d is an invalid number of station\n",
1141 le32_to_cpup((__le32 *)tlv_data));
1142 goto tlv_error;
1143 }
1144 capa->num_stations =
1145 le32_to_cpup((__le32 *)tlv_data);
1146 break;
1147 case IWL_UCODE_TLV_UMAC_DEBUG_ADDRS: {
1148 struct iwl_umac_debug_addrs *dbg_ptrs =
1149 (void *)tlv_data;
1150
1151 if (tlv_len != sizeof(*dbg_ptrs))
1152 goto invalid_tlv_len;
1153 if (drv->trans->trans_cfg->device_family <
1154 IWL_DEVICE_FAMILY_22000)
1155 break;
1156 drv->trans->dbg.umac_error_event_table =
1157 le32_to_cpu(dbg_ptrs->error_info_addr) &
1158 ~FW_ADDR_CACHE_CONTROL;
1159 drv->trans->dbg.error_event_table_tlv_status |=
1160 IWL_ERROR_EVENT_TABLE_UMAC;
1161 break;
1162 }
1163 case IWL_UCODE_TLV_LMAC_DEBUG_ADDRS: {
1164 struct iwl_lmac_debug_addrs *dbg_ptrs =
1165 (void *)tlv_data;
1166
1167 if (tlv_len != sizeof(*dbg_ptrs))
1168 goto invalid_tlv_len;
1169 if (drv->trans->trans_cfg->device_family <
1170 IWL_DEVICE_FAMILY_22000)
1171 break;
1172 drv->trans->dbg.lmac_error_event_table[0] =
1173 le32_to_cpu(dbg_ptrs->error_event_table_ptr) &
1174 ~FW_ADDR_CACHE_CONTROL;
1175 drv->trans->dbg.error_event_table_tlv_status |=
1176 IWL_ERROR_EVENT_TABLE_LMAC1;
1177 break;
1178 }
1179 case IWL_UCODE_TLV_TYPE_DEBUG_INFO:
1180 case IWL_UCODE_TLV_TYPE_BUFFER_ALLOCATION:
1181 case IWL_UCODE_TLV_TYPE_HCMD:
1182 case IWL_UCODE_TLV_TYPE_REGIONS:
1183 case IWL_UCODE_TLV_TYPE_TRIGGERS:
1184 if (iwlwifi_mod_params.enable_ini)
1185 iwl_dbg_tlv_alloc(drv->trans, tlv, false);
1186 break;
1187 case IWL_UCODE_TLV_CMD_VERSIONS:
1188 if (tlv_len % sizeof(struct iwl_fw_cmd_version)) {
1189 IWL_ERR(drv,
1190 "Invalid length for command versions: %u\n",
1191 tlv_len);
1192 tlv_len /= sizeof(struct iwl_fw_cmd_version);
1193 tlv_len *= sizeof(struct iwl_fw_cmd_version);
1194 }
1195 if (WARN_ON(capa->cmd_versions))
1196 return -EINVAL;
1197 capa->cmd_versions = kmemdup(tlv_data, tlv_len,
1198 GFP_KERNEL);
1199 if (!capa->cmd_versions)
1200 return -ENOMEM;
1201 capa->n_cmd_versions =
1202 tlv_len / sizeof(struct iwl_fw_cmd_version);
1203 break;
1204 default:
1205 IWL_DEBUG_INFO(drv, "unknown TLV: %d\n", tlv_type);
1206 break;
1207 }
1208 }
1209
1210 if (!fw_has_capa(capa, IWL_UCODE_TLV_CAPA_USNIFFER_UNIFIED) &&
1211 usniffer_req && !*usniffer_images) {
1212 IWL_ERR(drv,
1213 "user selected to work with usniffer but usniffer image isn't available in ucode package\n");
1214 return -EINVAL;
1215 }
1216
1217 if (len) {
1218 IWL_ERR(drv, "invalid TLV after parsing: %zd\n", len);
1219 iwl_print_hex_dump(drv, IWL_DL_FW, (u8 *)data, len);
1220 return -EINVAL;
1221 }
1222
1223 return 0;
1224
1225 invalid_tlv_len:
1226 IWL_ERR(drv, "TLV %d has invalid size: %u\n", tlv_type, tlv_len);
1227 tlv_error:
1228 iwl_print_hex_dump(drv, IWL_DL_FW, tlv_data, tlv_len);
1229
1230 return -EINVAL;
1231 }
1232
iwl_alloc_ucode(struct iwl_drv * drv,struct iwl_firmware_pieces * pieces,enum iwl_ucode_type type)1233 static int iwl_alloc_ucode(struct iwl_drv *drv,
1234 struct iwl_firmware_pieces *pieces,
1235 enum iwl_ucode_type type)
1236 {
1237 int i;
1238 struct fw_desc *sec;
1239
1240 sec = kcalloc(pieces->img[type].sec_counter, sizeof(*sec), GFP_KERNEL);
1241 if (!sec)
1242 return -ENOMEM;
1243 drv->fw.img[type].sec = sec;
1244 drv->fw.img[type].num_sec = pieces->img[type].sec_counter;
1245
1246 for (i = 0; i < pieces->img[type].sec_counter; i++)
1247 if (iwl_alloc_fw_desc(drv, &sec[i], get_sec(pieces, type, i)))
1248 return -ENOMEM;
1249
1250 return 0;
1251 }
1252
validate_sec_sizes(struct iwl_drv * drv,struct iwl_firmware_pieces * pieces,const struct iwl_cfg * cfg)1253 static int validate_sec_sizes(struct iwl_drv *drv,
1254 struct iwl_firmware_pieces *pieces,
1255 const struct iwl_cfg *cfg)
1256 {
1257 IWL_DEBUG_INFO(drv, "f/w package hdr runtime inst size = %zd\n",
1258 get_sec_size(pieces, IWL_UCODE_REGULAR,
1259 IWL_UCODE_SECTION_INST));
1260 IWL_DEBUG_INFO(drv, "f/w package hdr runtime data size = %zd\n",
1261 get_sec_size(pieces, IWL_UCODE_REGULAR,
1262 IWL_UCODE_SECTION_DATA));
1263 IWL_DEBUG_INFO(drv, "f/w package hdr init inst size = %zd\n",
1264 get_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_INST));
1265 IWL_DEBUG_INFO(drv, "f/w package hdr init data size = %zd\n",
1266 get_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_DATA));
1267
1268 /* Verify that uCode images will fit in card's SRAM. */
1269 if (get_sec_size(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_INST) >
1270 cfg->max_inst_size) {
1271 IWL_ERR(drv, "uCode instr len %zd too large to fit in\n",
1272 get_sec_size(pieces, IWL_UCODE_REGULAR,
1273 IWL_UCODE_SECTION_INST));
1274 return -1;
1275 }
1276
1277 if (get_sec_size(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_DATA) >
1278 cfg->max_data_size) {
1279 IWL_ERR(drv, "uCode data len %zd too large to fit in\n",
1280 get_sec_size(pieces, IWL_UCODE_REGULAR,
1281 IWL_UCODE_SECTION_DATA));
1282 return -1;
1283 }
1284
1285 if (get_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_INST) >
1286 cfg->max_inst_size) {
1287 IWL_ERR(drv, "uCode init instr len %zd too large to fit in\n",
1288 get_sec_size(pieces, IWL_UCODE_INIT,
1289 IWL_UCODE_SECTION_INST));
1290 return -1;
1291 }
1292
1293 if (get_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_DATA) >
1294 cfg->max_data_size) {
1295 IWL_ERR(drv, "uCode init data len %zd too large to fit in\n",
1296 get_sec_size(pieces, IWL_UCODE_REGULAR,
1297 IWL_UCODE_SECTION_DATA));
1298 return -1;
1299 }
1300 return 0;
1301 }
1302
1303 static struct iwl_op_mode *
_iwl_op_mode_start(struct iwl_drv * drv,struct iwlwifi_opmode_table * op)1304 _iwl_op_mode_start(struct iwl_drv *drv, struct iwlwifi_opmode_table *op)
1305 {
1306 const struct iwl_op_mode_ops *ops = op->ops;
1307 struct dentry *dbgfs_dir = NULL;
1308 struct iwl_op_mode *op_mode = NULL;
1309 int retry, max_retry = !!iwlwifi_mod_params.fw_restart * IWL_MAX_INIT_RETRY;
1310
1311 for (retry = 0; retry <= max_retry; retry++) {
1312
1313 #ifdef CONFIG_IWLWIFI_DEBUGFS
1314 drv->dbgfs_op_mode = debugfs_create_dir(op->name,
1315 drv->dbgfs_drv);
1316 dbgfs_dir = drv->dbgfs_op_mode;
1317 #endif
1318
1319 op_mode = ops->start(drv->trans, drv->trans->cfg,
1320 &drv->fw, dbgfs_dir);
1321
1322 if (op_mode)
1323 return op_mode;
1324
1325 IWL_ERR(drv, "retry init count %d\n", retry);
1326
1327 #ifdef CONFIG_IWLWIFI_DEBUGFS
1328 debugfs_remove_recursive(drv->dbgfs_op_mode);
1329 drv->dbgfs_op_mode = NULL;
1330 #endif
1331 }
1332
1333 return NULL;
1334 }
1335
_iwl_op_mode_stop(struct iwl_drv * drv)1336 static void _iwl_op_mode_stop(struct iwl_drv *drv)
1337 {
1338 /* op_mode can be NULL if its start failed */
1339 if (drv->op_mode) {
1340 iwl_op_mode_stop(drv->op_mode);
1341 drv->op_mode = NULL;
1342
1343 #ifdef CONFIG_IWLWIFI_DEBUGFS
1344 debugfs_remove_recursive(drv->dbgfs_op_mode);
1345 drv->dbgfs_op_mode = NULL;
1346 #endif
1347 }
1348 }
1349
1350 /*
1351 * iwl_req_fw_callback - callback when firmware was loaded
1352 *
1353 * If loaded successfully, copies the firmware into buffers
1354 * for the card to fetch (via DMA).
1355 */
iwl_req_fw_callback(const struct firmware * ucode_raw,void * context)1356 static void iwl_req_fw_callback(const struct firmware *ucode_raw, void *context)
1357 {
1358 struct iwl_drv *drv = context;
1359 struct iwl_fw *fw = &drv->fw;
1360 struct iwl_ucode_header *ucode;
1361 struct iwlwifi_opmode_table *op;
1362 int err;
1363 struct iwl_firmware_pieces *pieces;
1364 const unsigned int api_max = drv->trans->cfg->ucode_api_max;
1365 const unsigned int api_min = drv->trans->cfg->ucode_api_min;
1366 size_t trigger_tlv_sz[FW_DBG_TRIGGER_MAX];
1367 u32 api_ver;
1368 int i;
1369 bool load_module = false;
1370 bool usniffer_images = false;
1371 bool failure = true;
1372
1373 fw->ucode_capa.max_probe_length = IWL_DEFAULT_MAX_PROBE_LENGTH;
1374 fw->ucode_capa.standard_phy_calibration_size =
1375 IWL_DEFAULT_STANDARD_PHY_CALIBRATE_TBL_SIZE;
1376 fw->ucode_capa.n_scan_channels = IWL_DEFAULT_SCAN_CHANNELS;
1377 fw->ucode_capa.num_stations = IWL_MVM_STATION_COUNT_MAX;
1378 /* dump all fw memory areas by default */
1379 fw->dbg.dump_mask = 0xffffffff;
1380
1381 pieces = kzalloc(sizeof(*pieces), GFP_KERNEL);
1382 if (!pieces)
1383 goto out_free_fw;
1384
1385 if (!ucode_raw)
1386 goto try_again;
1387
1388 IWL_DEBUG_FW_INFO(drv, "Loaded firmware file '%s' (%zd bytes).\n",
1389 drv->firmware_name, ucode_raw->size);
1390
1391 /* Make sure that we got at least the API version number */
1392 if (ucode_raw->size < 4) {
1393 IWL_ERR(drv, "File size way too small!\n");
1394 goto try_again;
1395 }
1396
1397 /* Data from ucode file: header followed by uCode images */
1398 ucode = (struct iwl_ucode_header *)ucode_raw->data;
1399
1400 if (ucode->ver)
1401 err = iwl_parse_v1_v2_firmware(drv, ucode_raw, pieces);
1402 else
1403 err = iwl_parse_tlv_firmware(drv, ucode_raw, pieces,
1404 &fw->ucode_capa, &usniffer_images);
1405
1406 if (err)
1407 goto try_again;
1408
1409 if (fw_has_api(&drv->fw.ucode_capa, IWL_UCODE_TLV_API_NEW_VERSION))
1410 api_ver = drv->fw.ucode_ver;
1411 else
1412 api_ver = IWL_UCODE_API(drv->fw.ucode_ver);
1413
1414 /*
1415 * api_ver should match the api version forming part of the
1416 * firmware filename ... but we don't check for that and only rely
1417 * on the API version read from firmware header from here on forward
1418 */
1419 if (api_ver < api_min || api_ver > api_max) {
1420 IWL_ERR(drv,
1421 "Driver unable to support your firmware API. "
1422 "Driver supports v%u, firmware is v%u.\n",
1423 api_max, api_ver);
1424 goto try_again;
1425 }
1426
1427 /*
1428 * In mvm uCode there is no difference between data and instructions
1429 * sections.
1430 */
1431 if (fw->type == IWL_FW_DVM && validate_sec_sizes(drv, pieces,
1432 drv->trans->cfg))
1433 goto try_again;
1434
1435 /* Allocate ucode buffers for card's bus-master loading ... */
1436
1437 /* Runtime instructions and 2 copies of data:
1438 * 1) unmodified from disk
1439 * 2) backup cache for save/restore during power-downs
1440 */
1441 for (i = 0; i < IWL_UCODE_TYPE_MAX; i++)
1442 if (iwl_alloc_ucode(drv, pieces, i))
1443 goto out_free_fw;
1444
1445 if (pieces->dbg_dest_tlv_init) {
1446 size_t dbg_dest_size = sizeof(*drv->fw.dbg.dest_tlv) +
1447 sizeof(drv->fw.dbg.dest_tlv->reg_ops[0]) *
1448 drv->fw.dbg.n_dest_reg;
1449
1450 drv->fw.dbg.dest_tlv = kmalloc(dbg_dest_size, GFP_KERNEL);
1451
1452 if (!drv->fw.dbg.dest_tlv)
1453 goto out_free_fw;
1454
1455 if (*pieces->dbg_dest_ver == 0) {
1456 memcpy(drv->fw.dbg.dest_tlv, pieces->dbg_dest_tlv_v1,
1457 dbg_dest_size);
1458 } else {
1459 struct iwl_fw_dbg_dest_tlv_v1 *dest_tlv =
1460 drv->fw.dbg.dest_tlv;
1461
1462 dest_tlv->version = pieces->dbg_dest_tlv->version;
1463 dest_tlv->monitor_mode =
1464 pieces->dbg_dest_tlv->monitor_mode;
1465 dest_tlv->size_power =
1466 pieces->dbg_dest_tlv->size_power;
1467 dest_tlv->wrap_count =
1468 pieces->dbg_dest_tlv->wrap_count;
1469 dest_tlv->write_ptr_reg =
1470 pieces->dbg_dest_tlv->write_ptr_reg;
1471 dest_tlv->base_shift =
1472 pieces->dbg_dest_tlv->base_shift;
1473 memcpy(dest_tlv->reg_ops,
1474 pieces->dbg_dest_tlv->reg_ops,
1475 sizeof(drv->fw.dbg.dest_tlv->reg_ops[0]) *
1476 drv->fw.dbg.n_dest_reg);
1477
1478 /* In version 1 of the destination tlv, which is
1479 * relevant for internal buffer exclusively,
1480 * the base address is part of given with the length
1481 * of the buffer, and the size shift is give instead of
1482 * end shift. We now store these values in base_reg,
1483 * and end shift, and when dumping the data we'll
1484 * manipulate it for extracting both the length and
1485 * base address */
1486 dest_tlv->base_reg = pieces->dbg_dest_tlv->cfg_reg;
1487 dest_tlv->end_shift =
1488 pieces->dbg_dest_tlv->size_shift;
1489 }
1490 }
1491
1492 for (i = 0; i < ARRAY_SIZE(drv->fw.dbg.conf_tlv); i++) {
1493 if (pieces->dbg_conf_tlv[i]) {
1494 drv->fw.dbg.conf_tlv[i] =
1495 kmemdup(pieces->dbg_conf_tlv[i],
1496 pieces->dbg_conf_tlv_len[i],
1497 GFP_KERNEL);
1498 if (!drv->fw.dbg.conf_tlv[i])
1499 goto out_free_fw;
1500 }
1501 }
1502
1503 memset(&trigger_tlv_sz, 0xff, sizeof(trigger_tlv_sz));
1504
1505 trigger_tlv_sz[FW_DBG_TRIGGER_MISSED_BEACONS] =
1506 sizeof(struct iwl_fw_dbg_trigger_missed_bcon);
1507 trigger_tlv_sz[FW_DBG_TRIGGER_CHANNEL_SWITCH] = 0;
1508 trigger_tlv_sz[FW_DBG_TRIGGER_FW_NOTIF] =
1509 sizeof(struct iwl_fw_dbg_trigger_cmd);
1510 trigger_tlv_sz[FW_DBG_TRIGGER_MLME] =
1511 sizeof(struct iwl_fw_dbg_trigger_mlme);
1512 trigger_tlv_sz[FW_DBG_TRIGGER_STATS] =
1513 sizeof(struct iwl_fw_dbg_trigger_stats);
1514 trigger_tlv_sz[FW_DBG_TRIGGER_RSSI] =
1515 sizeof(struct iwl_fw_dbg_trigger_low_rssi);
1516 trigger_tlv_sz[FW_DBG_TRIGGER_TXQ_TIMERS] =
1517 sizeof(struct iwl_fw_dbg_trigger_txq_timer);
1518 trigger_tlv_sz[FW_DBG_TRIGGER_TIME_EVENT] =
1519 sizeof(struct iwl_fw_dbg_trigger_time_event);
1520 trigger_tlv_sz[FW_DBG_TRIGGER_BA] =
1521 sizeof(struct iwl_fw_dbg_trigger_ba);
1522 trigger_tlv_sz[FW_DBG_TRIGGER_TDLS] =
1523 sizeof(struct iwl_fw_dbg_trigger_tdls);
1524
1525 for (i = 0; i < ARRAY_SIZE(drv->fw.dbg.trigger_tlv); i++) {
1526 if (pieces->dbg_trigger_tlv[i]) {
1527 /*
1528 * If the trigger isn't long enough, WARN and exit.
1529 * Someone is trying to debug something and he won't
1530 * be able to catch the bug he is trying to chase.
1531 * We'd better be noisy to be sure he knows what's
1532 * going on.
1533 */
1534 if (WARN_ON(pieces->dbg_trigger_tlv_len[i] <
1535 (trigger_tlv_sz[i] +
1536 sizeof(struct iwl_fw_dbg_trigger_tlv))))
1537 goto out_free_fw;
1538 drv->fw.dbg.trigger_tlv_len[i] =
1539 pieces->dbg_trigger_tlv_len[i];
1540 drv->fw.dbg.trigger_tlv[i] =
1541 kmemdup(pieces->dbg_trigger_tlv[i],
1542 drv->fw.dbg.trigger_tlv_len[i],
1543 GFP_KERNEL);
1544 if (!drv->fw.dbg.trigger_tlv[i])
1545 goto out_free_fw;
1546 }
1547 }
1548
1549 /* Now that we can no longer fail, copy information */
1550
1551 drv->fw.dbg.mem_tlv = pieces->dbg_mem_tlv;
1552 pieces->dbg_mem_tlv = NULL;
1553 drv->fw.dbg.n_mem_tlv = pieces->n_mem_tlv;
1554
1555 /*
1556 * The (size - 16) / 12 formula is based on the information recorded
1557 * for each event, which is of mode 1 (including timestamp) for all
1558 * new microcodes that include this information.
1559 */
1560 fw->init_evtlog_ptr = pieces->init_evtlog_ptr;
1561 if (pieces->init_evtlog_size)
1562 fw->init_evtlog_size = (pieces->init_evtlog_size - 16)/12;
1563 else
1564 fw->init_evtlog_size =
1565 drv->trans->trans_cfg->base_params->max_event_log_size;
1566 fw->init_errlog_ptr = pieces->init_errlog_ptr;
1567 fw->inst_evtlog_ptr = pieces->inst_evtlog_ptr;
1568 if (pieces->inst_evtlog_size)
1569 fw->inst_evtlog_size = (pieces->inst_evtlog_size - 16)/12;
1570 else
1571 fw->inst_evtlog_size =
1572 drv->trans->trans_cfg->base_params->max_event_log_size;
1573 fw->inst_errlog_ptr = pieces->inst_errlog_ptr;
1574
1575 /*
1576 * figure out the offset of chain noise reset and gain commands
1577 * base on the size of standard phy calibration commands table size
1578 */
1579 if (fw->ucode_capa.standard_phy_calibration_size >
1580 IWL_MAX_PHY_CALIBRATE_TBL_SIZE)
1581 fw->ucode_capa.standard_phy_calibration_size =
1582 IWL_MAX_STANDARD_PHY_CALIBRATE_TBL_SIZE;
1583
1584 /* We have our copies now, allow OS release its copies */
1585 release_firmware(ucode_raw);
1586
1587 mutex_lock(&iwlwifi_opmode_table_mtx);
1588 switch (fw->type) {
1589 case IWL_FW_DVM:
1590 op = &iwlwifi_opmode_table[DVM_OP_MODE];
1591 break;
1592 default:
1593 WARN(1, "Invalid fw type %d\n", fw->type);
1594 /* fall through */
1595 case IWL_FW_MVM:
1596 op = &iwlwifi_opmode_table[MVM_OP_MODE];
1597 break;
1598 }
1599
1600 IWL_INFO(drv, "loaded firmware version %s op_mode %s\n",
1601 drv->fw.fw_version, op->name);
1602
1603 iwl_dbg_tlv_load_bin(drv->trans->dev, drv->trans);
1604
1605 /* add this device to the list of devices using this op_mode */
1606 list_add_tail(&drv->list, &op->drv);
1607
1608 if (op->ops) {
1609 drv->op_mode = _iwl_op_mode_start(drv, op);
1610
1611 if (!drv->op_mode) {
1612 mutex_unlock(&iwlwifi_opmode_table_mtx);
1613 goto out_unbind;
1614 }
1615 } else {
1616 load_module = true;
1617 }
1618 mutex_unlock(&iwlwifi_opmode_table_mtx);
1619
1620 /*
1621 * Complete the firmware request last so that
1622 * a driver unbind (stop) doesn't run while we
1623 * are doing the start() above.
1624 */
1625 complete(&drv->request_firmware_complete);
1626
1627 /*
1628 * Load the module last so we don't block anything
1629 * else from proceeding if the module fails to load
1630 * or hangs loading.
1631 */
1632 if (load_module)
1633 request_module("%s", op->name);
1634 failure = false;
1635 goto free;
1636
1637 try_again:
1638 /* try next, if any */
1639 release_firmware(ucode_raw);
1640 if (iwl_request_firmware(drv, false))
1641 goto out_unbind;
1642 goto free;
1643
1644 out_free_fw:
1645 release_firmware(ucode_raw);
1646 out_unbind:
1647 complete(&drv->request_firmware_complete);
1648 device_release_driver(drv->trans->dev);
1649 /* drv has just been freed by the release */
1650 failure = false;
1651 free:
1652 if (failure)
1653 iwl_dealloc_ucode(drv);
1654
1655 if (pieces) {
1656 for (i = 0; i < ARRAY_SIZE(pieces->img); i++)
1657 kfree(pieces->img[i].sec);
1658 kfree(pieces->dbg_mem_tlv);
1659 kfree(pieces);
1660 }
1661 }
1662
iwl_drv_start(struct iwl_trans * trans)1663 struct iwl_drv *iwl_drv_start(struct iwl_trans *trans)
1664 {
1665 struct iwl_drv *drv;
1666 int ret;
1667
1668 drv = kzalloc(sizeof(*drv), GFP_KERNEL);
1669 if (!drv) {
1670 ret = -ENOMEM;
1671 goto err;
1672 }
1673
1674 drv->trans = trans;
1675 drv->dev = trans->dev;
1676
1677 init_completion(&drv->request_firmware_complete);
1678 INIT_LIST_HEAD(&drv->list);
1679
1680 #ifdef CONFIG_IWLWIFI_DEBUGFS
1681 /* Create the device debugfs entries. */
1682 drv->dbgfs_drv = debugfs_create_dir(dev_name(trans->dev),
1683 iwl_dbgfs_root);
1684
1685 /* Create transport layer debugfs dir */
1686 drv->trans->dbgfs_dir = debugfs_create_dir("trans", drv->dbgfs_drv);
1687 #endif
1688
1689 drv->trans->dbg.domains_bitmap = IWL_TRANS_FW_DBG_DOMAIN(drv->trans);
1690
1691 ret = iwl_request_firmware(drv, true);
1692 if (ret) {
1693 IWL_ERR(trans, "Couldn't request the fw\n");
1694 goto err_fw;
1695 }
1696
1697 return drv;
1698
1699 err_fw:
1700 #ifdef CONFIG_IWLWIFI_DEBUGFS
1701 debugfs_remove_recursive(drv->dbgfs_drv);
1702 iwl_dbg_tlv_free(drv->trans);
1703 #endif
1704 kfree(drv);
1705 err:
1706 return ERR_PTR(ret);
1707 }
1708
iwl_drv_stop(struct iwl_drv * drv)1709 void iwl_drv_stop(struct iwl_drv *drv)
1710 {
1711 wait_for_completion(&drv->request_firmware_complete);
1712
1713 _iwl_op_mode_stop(drv);
1714
1715 iwl_dealloc_ucode(drv);
1716
1717 mutex_lock(&iwlwifi_opmode_table_mtx);
1718 /*
1719 * List is empty (this item wasn't added)
1720 * when firmware loading failed -- in that
1721 * case we can't remove it from any list.
1722 */
1723 if (!list_empty(&drv->list))
1724 list_del(&drv->list);
1725 mutex_unlock(&iwlwifi_opmode_table_mtx);
1726
1727 #ifdef CONFIG_IWLWIFI_DEBUGFS
1728 drv->trans->ops->debugfs_cleanup(drv->trans);
1729
1730 debugfs_remove_recursive(drv->dbgfs_drv);
1731 #endif
1732
1733 iwl_dbg_tlv_free(drv->trans);
1734
1735 kfree(drv);
1736 }
1737
1738
1739 /* shared module parameters */
1740 struct iwl_mod_params iwlwifi_mod_params = {
1741 .fw_restart = true,
1742 .bt_coex_active = true,
1743 .power_level = IWL_POWER_INDEX_1,
1744 .uapsd_disable = IWL_DISABLE_UAPSD_BSS | IWL_DISABLE_UAPSD_P2P_CLIENT,
1745 .enable_ini = true,
1746 /* the rest are 0 by default */
1747 };
1748 IWL_EXPORT_SYMBOL(iwlwifi_mod_params);
1749
iwl_opmode_register(const char * name,const struct iwl_op_mode_ops * ops)1750 int iwl_opmode_register(const char *name, const struct iwl_op_mode_ops *ops)
1751 {
1752 int i;
1753 struct iwl_drv *drv;
1754 struct iwlwifi_opmode_table *op;
1755
1756 mutex_lock(&iwlwifi_opmode_table_mtx);
1757 for (i = 0; i < ARRAY_SIZE(iwlwifi_opmode_table); i++) {
1758 op = &iwlwifi_opmode_table[i];
1759 if (strcmp(op->name, name))
1760 continue;
1761 op->ops = ops;
1762 /* TODO: need to handle exceptional case */
1763 list_for_each_entry(drv, &op->drv, list)
1764 drv->op_mode = _iwl_op_mode_start(drv, op);
1765
1766 mutex_unlock(&iwlwifi_opmode_table_mtx);
1767 return 0;
1768 }
1769 mutex_unlock(&iwlwifi_opmode_table_mtx);
1770 return -EIO;
1771 }
1772 IWL_EXPORT_SYMBOL(iwl_opmode_register);
1773
iwl_opmode_deregister(const char * name)1774 void iwl_opmode_deregister(const char *name)
1775 {
1776 int i;
1777 struct iwl_drv *drv;
1778
1779 mutex_lock(&iwlwifi_opmode_table_mtx);
1780 for (i = 0; i < ARRAY_SIZE(iwlwifi_opmode_table); i++) {
1781 if (strcmp(iwlwifi_opmode_table[i].name, name))
1782 continue;
1783 iwlwifi_opmode_table[i].ops = NULL;
1784
1785 /* call the stop routine for all devices */
1786 list_for_each_entry(drv, &iwlwifi_opmode_table[i].drv, list)
1787 _iwl_op_mode_stop(drv);
1788
1789 mutex_unlock(&iwlwifi_opmode_table_mtx);
1790 return;
1791 }
1792 mutex_unlock(&iwlwifi_opmode_table_mtx);
1793 }
1794 IWL_EXPORT_SYMBOL(iwl_opmode_deregister);
1795
iwl_drv_init(void)1796 static int __init iwl_drv_init(void)
1797 {
1798 int i, err;
1799
1800 mutex_init(&iwlwifi_opmode_table_mtx);
1801
1802 for (i = 0; i < ARRAY_SIZE(iwlwifi_opmode_table); i++)
1803 INIT_LIST_HEAD(&iwlwifi_opmode_table[i].drv);
1804
1805 pr_info(DRV_DESCRIPTION "\n");
1806
1807 #ifdef CONFIG_IWLWIFI_DEBUGFS
1808 /* Create the root of iwlwifi debugfs subsystem. */
1809 iwl_dbgfs_root = debugfs_create_dir(DRV_NAME, NULL);
1810 #endif
1811
1812 err = iwl_pci_register_driver();
1813 if (err)
1814 goto cleanup_debugfs;
1815
1816 return 0;
1817
1818 cleanup_debugfs:
1819 #ifdef CONFIG_IWLWIFI_DEBUGFS
1820 debugfs_remove_recursive(iwl_dbgfs_root);
1821 #endif
1822 return err;
1823 }
1824 module_init(iwl_drv_init);
1825
iwl_drv_exit(void)1826 static void __exit iwl_drv_exit(void)
1827 {
1828 iwl_pci_unregister_driver();
1829
1830 #ifdef CONFIG_IWLWIFI_DEBUGFS
1831 debugfs_remove_recursive(iwl_dbgfs_root);
1832 #endif
1833 }
1834 module_exit(iwl_drv_exit);
1835
1836 #ifdef CONFIG_IWLWIFI_DEBUG
1837 module_param_named(debug, iwlwifi_mod_params.debug_level, uint, 0644);
1838 MODULE_PARM_DESC(debug, "debug output mask");
1839 #endif
1840
1841 module_param_named(swcrypto, iwlwifi_mod_params.swcrypto, int, 0444);
1842 MODULE_PARM_DESC(swcrypto, "using crypto in software (default 0 [hardware])");
1843 module_param_named(11n_disable, iwlwifi_mod_params.disable_11n, uint, 0444);
1844 MODULE_PARM_DESC(11n_disable,
1845 "disable 11n functionality, bitmap: 1: full, 2: disable agg TX, 4: disable agg RX, 8 enable agg TX");
1846 module_param_named(amsdu_size, iwlwifi_mod_params.amsdu_size, int, 0444);
1847 MODULE_PARM_DESC(amsdu_size,
1848 "amsdu size 0: 12K for multi Rx queue devices, 2K for AX210 devices, "
1849 "4K for other devices 1:4K 2:8K 3:12K 4: 2K (default 0)");
1850 module_param_named(fw_restart, iwlwifi_mod_params.fw_restart, bool, 0444);
1851 MODULE_PARM_DESC(fw_restart, "restart firmware in case of error (default true)");
1852
1853 module_param_named(nvm_file, iwlwifi_mod_params.nvm_file, charp, 0444);
1854 MODULE_PARM_DESC(nvm_file, "NVM file name");
1855
1856 module_param_named(uapsd_disable, iwlwifi_mod_params.uapsd_disable, uint, 0644);
1857 MODULE_PARM_DESC(uapsd_disable,
1858 "disable U-APSD functionality bitmap 1: BSS 2: P2P Client (default: 3)");
1859 module_param_named(enable_ini, iwlwifi_mod_params.enable_ini,
1860 bool, S_IRUGO | S_IWUSR);
1861 MODULE_PARM_DESC(enable_ini,
1862 "Enable debug INI TLV FW debug infrastructure (default: true");
1863
1864 /*
1865 * set bt_coex_active to true, uCode will do kill/defer
1866 * every time the priority line is asserted (BT is sending signals on the
1867 * priority line in the PCIx).
1868 * set bt_coex_active to false, uCode will ignore the BT activity and
1869 * perform the normal operation
1870 *
1871 * User might experience transmit issue on some platform due to WiFi/BT
1872 * co-exist problem. The possible behaviors are:
1873 * Able to scan and finding all the available AP
1874 * Not able to associate with any AP
1875 * On those platforms, WiFi communication can be restored by set
1876 * "bt_coex_active" module parameter to "false"
1877 *
1878 * default: bt_coex_active = true (BT_COEX_ENABLE)
1879 */
1880 module_param_named(bt_coex_active, iwlwifi_mod_params.bt_coex_active,
1881 bool, 0444);
1882 MODULE_PARM_DESC(bt_coex_active, "enable wifi/bt co-exist (default: enable)");
1883
1884 module_param_named(led_mode, iwlwifi_mod_params.led_mode, int, 0444);
1885 MODULE_PARM_DESC(led_mode, "0=system default, "
1886 "1=On(RF On)/Off(RF Off), 2=blinking, 3=Off (default: 0)");
1887
1888 module_param_named(power_save, iwlwifi_mod_params.power_save, bool, 0444);
1889 MODULE_PARM_DESC(power_save,
1890 "enable WiFi power management (default: disable)");
1891
1892 module_param_named(power_level, iwlwifi_mod_params.power_level, int, 0444);
1893 MODULE_PARM_DESC(power_level,
1894 "default power save level (range from 1 - 5, default: 1)");
1895
1896 module_param_named(disable_11ac, iwlwifi_mod_params.disable_11ac, bool, 0444);
1897 MODULE_PARM_DESC(disable_11ac, "Disable VHT capabilities (default: false)");
1898
1899 module_param_named(remove_when_gone,
1900 iwlwifi_mod_params.remove_when_gone, bool,
1901 0444);
1902 MODULE_PARM_DESC(remove_when_gone,
1903 "Remove dev from PCIe bus if it is deemed inaccessible (default: false)");
1904
1905 module_param_named(disable_11ax, iwlwifi_mod_params.disable_11ax, bool,
1906 S_IRUGO);
1907 MODULE_PARM_DESC(disable_11ax, "Disable HE capabilities (default: false)");
1908