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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 - 2012 Intel Corporation. All rights reserved. | |
9 | * | |
10 | * This program is free software; you can redistribute it and/or modify | |
11 | * it under the terms of version 2 of the GNU General Public License as | |
12 | * published by the Free Software Foundation. | |
13 | * | |
14 | * This program is distributed in the hope that it will be useful, but | |
15 | * WITHOUT ANY WARRANTY; without even the implied warranty of | |
16 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
17 | * General Public License for more details. | |
18 | * | |
19 | * You should have received a copy of the GNU General Public License | |
20 | * along with this program; if not, write to the Free Software | |
21 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110, | |
22 | * USA | |
23 | * | |
24 | * The full GNU General Public License is included in this distribution | |
25 | * in the file called LICENSE.GPL. | |
26 | * | |
27 | * Contact Information: | |
28 | * Intel Linux Wireless <ilw@linux.intel.com> | |
29 | * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497 | |
30 | * | |
31 | * BSD LICENSE | |
32 | * | |
33 | * Copyright(c) 2005 - 2012 Intel Corporation. All rights reserved. | |
34 | * All rights reserved. | |
35 | * | |
36 | * Redistribution and use in source and binary forms, with or without | |
37 | * modification, are permitted provided that the following conditions | |
38 | * are met: | |
39 | * | |
40 | * * Redistributions of source code must retain the above copyright | |
41 | * notice, this list of conditions and the following disclaimer. | |
42 | * * Redistributions in binary form must reproduce the above copyright | |
43 | * notice, this list of conditions and the following disclaimer in | |
44 | * the documentation and/or other materials provided with the | |
45 | * distribution. | |
46 | * * Neither the name Intel Corporation nor the names of its | |
47 | * contributors may be used to endorse or promote products derived | |
48 | * from this software without specific prior written permission. | |
49 | * | |
50 | * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS | |
51 | * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT | |
52 | * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR | |
53 | * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT | |
54 | * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, | |
55 | * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT | |
56 | * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, | |
57 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY | |
58 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT | |
59 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE | |
60 | * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | |
61 | * | |
62 | *****************************************************************************/ | |
63 | #include <linux/completion.h> | |
64 | #include <linux/dma-mapping.h> | |
65 | #include <linux/firmware.h> | |
66 | #include <linux/module.h> | |
67 | ||
68 | #include "iwl-drv.h" | |
69 | #include "iwl-debug.h" | |
70 | #include "iwl-trans.h" | |
71 | #include "iwl-op-mode.h" | |
72 | #include "iwl-agn-hw.h" | |
73 | #include "iwl-fw.h" | |
74 | #include "iwl-config.h" | |
75 | #include "iwl-modparams.h" | |
76 | ||
77 | /* private includes */ | |
78 | #include "iwl-fw-file.h" | |
79 | ||
80 | /****************************************************************************** | |
81 | * | |
82 | * module boiler plate | |
83 | * | |
84 | ******************************************************************************/ | |
85 | ||
86 | /* | |
87 | * module name, copyright, version, etc. | |
88 | */ | |
89 | #define DRV_DESCRIPTION "Intel(R) Wireless WiFi driver for Linux" | |
90 | ||
91 | #ifdef CONFIG_IWLWIFI_DEBUG | |
92 | #define VD "d" | |
93 | #else | |
94 | #define VD | |
95 | #endif | |
96 | ||
97 | #define DRV_VERSION IWLWIFI_VERSION VD | |
98 | ||
99 | MODULE_DESCRIPTION(DRV_DESCRIPTION); | |
100 | MODULE_VERSION(DRV_VERSION); | |
101 | MODULE_AUTHOR(DRV_COPYRIGHT " " DRV_AUTHOR); | |
102 | MODULE_LICENSE("GPL"); | |
103 | ||
104 | /** | |
105 | * struct iwl_drv - drv common data | |
106 | * @list: list of drv structures using this opmode | |
107 | * @fw: the iwl_fw structure | |
108 | * @op_mode: the running op_mode | |
109 | * @trans: transport layer | |
110 | * @dev: for debug prints only | |
111 | * @cfg: configuration struct | |
112 | * @fw_index: firmware revision to try loading | |
113 | * @firmware_name: composite filename of ucode file to load | |
114 | * @request_firmware_complete: the firmware has been obtained from user space | |
115 | */ | |
116 | struct iwl_drv { | |
117 | struct list_head list; | |
118 | struct iwl_fw fw; | |
119 | ||
120 | struct iwl_op_mode *op_mode; | |
121 | struct iwl_trans *trans; | |
122 | struct device *dev; | |
123 | const struct iwl_cfg *cfg; | |
124 | ||
125 | int fw_index; /* firmware we're trying to load */ | |
126 | char firmware_name[25]; /* name of firmware file to load */ | |
127 | ||
128 | struct completion request_firmware_complete; | |
129 | }; | |
130 | ||
131 | #define DVM_OP_MODE 0 | |
132 | #define MVM_OP_MODE 1 | |
133 | ||
134 | /* Protects the table contents, i.e. the ops pointer & drv list */ | |
135 | static struct mutex iwlwifi_opmode_table_mtx; | |
136 | static struct iwlwifi_opmode_table { | |
137 | const char *name; /* name: iwldvm, iwlmvm, etc */ | |
138 | const struct iwl_op_mode_ops *ops; /* pointer to op_mode ops */ | |
139 | struct list_head drv; /* list of devices using this op_mode */ | |
140 | } iwlwifi_opmode_table[] = { /* ops set when driver is initialized */ | |
141 | { .name = "iwldvm", .ops = NULL }, | |
142 | { .name = "iwlmvm", .ops = NULL }, | |
143 | }; | |
144 | ||
145 | /* | |
146 | * struct fw_sec: Just for the image parsing proccess. | |
147 | * For the fw storage we are using struct fw_desc. | |
148 | */ | |
149 | struct fw_sec { | |
150 | const void *data; /* the sec data */ | |
151 | size_t size; /* section size */ | |
152 | u32 offset; /* offset of writing in the device */ | |
153 | }; | |
154 | ||
155 | static void iwl_free_fw_desc(struct iwl_drv *drv, struct fw_desc *desc) | |
156 | { | |
157 | if (desc->v_addr) | |
158 | dma_free_coherent(drv->trans->dev, desc->len, | |
159 | desc->v_addr, desc->p_addr); | |
160 | desc->v_addr = NULL; | |
161 | desc->len = 0; | |
162 | } | |
163 | ||
164 | static void iwl_free_fw_img(struct iwl_drv *drv, struct fw_img *img) | |
165 | { | |
166 | int i; | |
167 | for (i = 0; i < IWL_UCODE_SECTION_MAX; i++) | |
168 | iwl_free_fw_desc(drv, &img->sec[i]); | |
169 | } | |
170 | ||
171 | static void iwl_dealloc_ucode(struct iwl_drv *drv) | |
172 | { | |
173 | int i; | |
174 | for (i = 0; i < IWL_UCODE_TYPE_MAX; i++) | |
175 | iwl_free_fw_img(drv, drv->fw.img + i); | |
176 | } | |
177 | ||
178 | static int iwl_alloc_fw_desc(struct iwl_drv *drv, struct fw_desc *desc, | |
179 | struct fw_sec *sec) | |
180 | { | |
181 | if (!sec || !sec->size) { | |
182 | desc->v_addr = NULL; | |
183 | return -EINVAL; | |
184 | } | |
185 | ||
186 | desc->v_addr = dma_alloc_coherent(drv->trans->dev, sec->size, | |
187 | &desc->p_addr, GFP_KERNEL); | |
188 | if (!desc->v_addr) | |
189 | return -ENOMEM; | |
190 | ||
191 | desc->len = sec->size; | |
192 | desc->offset = sec->offset; | |
193 | memcpy(desc->v_addr, sec->data, sec->size); | |
194 | return 0; | |
195 | } | |
196 | ||
197 | static void iwl_req_fw_callback(const struct firmware *ucode_raw, | |
198 | void *context); | |
199 | ||
200 | #define UCODE_EXPERIMENTAL_INDEX 100 | |
201 | #define UCODE_EXPERIMENTAL_TAG "exp" | |
202 | ||
203 | static int iwl_request_firmware(struct iwl_drv *drv, bool first) | |
204 | { | |
205 | const char *name_pre = drv->cfg->fw_name_pre; | |
206 | char tag[8]; | |
207 | ||
208 | if (first) { | |
209 | #ifdef CONFIG_IWLWIFI_DEBUG_EXPERIMENTAL_UCODE | |
210 | drv->fw_index = UCODE_EXPERIMENTAL_INDEX; | |
211 | strcpy(tag, UCODE_EXPERIMENTAL_TAG); | |
212 | } else if (drv->fw_index == UCODE_EXPERIMENTAL_INDEX) { | |
213 | #endif | |
214 | drv->fw_index = drv->cfg->ucode_api_max; | |
215 | sprintf(tag, "%d", drv->fw_index); | |
216 | } else { | |
217 | drv->fw_index--; | |
218 | sprintf(tag, "%d", drv->fw_index); | |
219 | } | |
220 | ||
221 | if (drv->fw_index < drv->cfg->ucode_api_min) { | |
222 | IWL_ERR(drv, "no suitable firmware found!\n"); | |
223 | return -ENOENT; | |
224 | } | |
225 | ||
226 | sprintf(drv->firmware_name, "%s%s%s", name_pre, tag, ".ucode"); | |
227 | ||
228 | IWL_DEBUG_INFO(drv, "attempting to load firmware %s'%s'\n", | |
229 | (drv->fw_index == UCODE_EXPERIMENTAL_INDEX) | |
230 | ? "EXPERIMENTAL " : "", | |
231 | drv->firmware_name); | |
232 | ||
233 | return request_firmware_nowait(THIS_MODULE, 1, drv->firmware_name, | |
234 | drv->trans->dev, | |
235 | GFP_KERNEL, drv, iwl_req_fw_callback); | |
236 | } | |
237 | ||
238 | struct fw_img_parsing { | |
239 | struct fw_sec sec[IWL_UCODE_SECTION_MAX]; | |
240 | int sec_counter; | |
241 | }; | |
242 | ||
243 | /* | |
244 | * struct fw_sec_parsing: to extract fw section and it's offset from tlv | |
245 | */ | |
246 | struct fw_sec_parsing { | |
247 | __le32 offset; | |
248 | const u8 data[]; | |
249 | } __packed; | |
250 | ||
251 | /** | |
252 | * struct iwl_tlv_calib_data - parse the default calib data from TLV | |
253 | * | |
254 | * @ucode_type: the uCode to which the following default calib relates. | |
255 | * @calib: default calibrations. | |
256 | */ | |
257 | struct iwl_tlv_calib_data { | |
258 | __le32 ucode_type; | |
259 | __le64 calib; | |
260 | } __packed; | |
261 | ||
262 | struct iwl_firmware_pieces { | |
263 | struct fw_img_parsing img[IWL_UCODE_TYPE_MAX]; | |
264 | ||
265 | u32 init_evtlog_ptr, init_evtlog_size, init_errlog_ptr; | |
266 | u32 inst_evtlog_ptr, inst_evtlog_size, inst_errlog_ptr; | |
267 | }; | |
268 | ||
269 | /* | |
270 | * These functions are just to extract uCode section data from the pieces | |
271 | * structure. | |
272 | */ | |
273 | static struct fw_sec *get_sec(struct iwl_firmware_pieces *pieces, | |
274 | enum iwl_ucode_type type, | |
275 | int sec) | |
276 | { | |
277 | return &pieces->img[type].sec[sec]; | |
278 | } | |
279 | ||
280 | static void set_sec_data(struct iwl_firmware_pieces *pieces, | |
281 | enum iwl_ucode_type type, | |
282 | int sec, | |
283 | const void *data) | |
284 | { | |
285 | pieces->img[type].sec[sec].data = data; | |
286 | } | |
287 | ||
288 | static void set_sec_size(struct iwl_firmware_pieces *pieces, | |
289 | enum iwl_ucode_type type, | |
290 | int sec, | |
291 | size_t size) | |
292 | { | |
293 | pieces->img[type].sec[sec].size = size; | |
294 | } | |
295 | ||
296 | static size_t get_sec_size(struct iwl_firmware_pieces *pieces, | |
297 | enum iwl_ucode_type type, | |
298 | int sec) | |
299 | { | |
300 | return pieces->img[type].sec[sec].size; | |
301 | } | |
302 | ||
303 | static void set_sec_offset(struct iwl_firmware_pieces *pieces, | |
304 | enum iwl_ucode_type type, | |
305 | int sec, | |
306 | u32 offset) | |
307 | { | |
308 | pieces->img[type].sec[sec].offset = offset; | |
309 | } | |
310 | ||
311 | /* | |
312 | * Gets uCode section from tlv. | |
313 | */ | |
314 | static int iwl_store_ucode_sec(struct iwl_firmware_pieces *pieces, | |
315 | const void *data, enum iwl_ucode_type type, | |
316 | int size) | |
317 | { | |
318 | struct fw_img_parsing *img; | |
319 | struct fw_sec *sec; | |
320 | struct fw_sec_parsing *sec_parse; | |
321 | ||
322 | if (WARN_ON(!pieces || !data || type >= IWL_UCODE_TYPE_MAX)) | |
323 | return -1; | |
324 | ||
325 | sec_parse = (struct fw_sec_parsing *)data; | |
326 | ||
327 | img = &pieces->img[type]; | |
328 | sec = &img->sec[img->sec_counter]; | |
329 | ||
330 | sec->offset = le32_to_cpu(sec_parse->offset); | |
331 | sec->data = sec_parse->data; | |
332 | sec->size = size - sizeof(sec_parse->offset); | |
333 | ||
334 | ++img->sec_counter; | |
335 | ||
336 | return 0; | |
337 | } | |
338 | ||
339 | static int iwl_set_default_calib(struct iwl_drv *drv, const u8 *data) | |
340 | { | |
341 | struct iwl_tlv_calib_data *def_calib = | |
342 | (struct iwl_tlv_calib_data *)data; | |
343 | u32 ucode_type = le32_to_cpu(def_calib->ucode_type); | |
344 | if (ucode_type >= IWL_UCODE_TYPE_MAX) { | |
345 | IWL_ERR(drv, "Wrong ucode_type %u for default calibration.\n", | |
346 | ucode_type); | |
347 | return -EINVAL; | |
348 | } | |
349 | drv->fw.default_calib[ucode_type] = le64_to_cpu(def_calib->calib); | |
350 | return 0; | |
351 | } | |
352 | ||
353 | static int iwl_parse_v1_v2_firmware(struct iwl_drv *drv, | |
354 | const struct firmware *ucode_raw, | |
355 | struct iwl_firmware_pieces *pieces) | |
356 | { | |
357 | struct iwl_ucode_header *ucode = (void *)ucode_raw->data; | |
358 | u32 api_ver, hdr_size, build; | |
359 | char buildstr[25]; | |
360 | const u8 *src; | |
361 | ||
362 | drv->fw.ucode_ver = le32_to_cpu(ucode->ver); | |
363 | api_ver = IWL_UCODE_API(drv->fw.ucode_ver); | |
364 | ||
365 | switch (api_ver) { | |
366 | default: | |
367 | hdr_size = 28; | |
368 | if (ucode_raw->size < hdr_size) { | |
369 | IWL_ERR(drv, "File size too small!\n"); | |
370 | return -EINVAL; | |
371 | } | |
372 | build = le32_to_cpu(ucode->u.v2.build); | |
373 | set_sec_size(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_INST, | |
374 | le32_to_cpu(ucode->u.v2.inst_size)); | |
375 | set_sec_size(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_DATA, | |
376 | le32_to_cpu(ucode->u.v2.data_size)); | |
377 | set_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_INST, | |
378 | le32_to_cpu(ucode->u.v2.init_size)); | |
379 | set_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_DATA, | |
380 | le32_to_cpu(ucode->u.v2.init_data_size)); | |
381 | src = ucode->u.v2.data; | |
382 | break; | |
383 | case 0: | |
384 | case 1: | |
385 | case 2: | |
386 | hdr_size = 24; | |
387 | if (ucode_raw->size < hdr_size) { | |
388 | IWL_ERR(drv, "File size too small!\n"); | |
389 | return -EINVAL; | |
390 | } | |
391 | build = 0; | |
392 | set_sec_size(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_INST, | |
393 | le32_to_cpu(ucode->u.v1.inst_size)); | |
394 | set_sec_size(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_DATA, | |
395 | le32_to_cpu(ucode->u.v1.data_size)); | |
396 | set_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_INST, | |
397 | le32_to_cpu(ucode->u.v1.init_size)); | |
398 | set_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_DATA, | |
399 | le32_to_cpu(ucode->u.v1.init_data_size)); | |
400 | src = ucode->u.v1.data; | |
401 | break; | |
402 | } | |
403 | ||
404 | if (build) | |
405 | sprintf(buildstr, " build %u%s", build, | |
406 | (drv->fw_index == UCODE_EXPERIMENTAL_INDEX) | |
407 | ? " (EXP)" : ""); | |
408 | else | |
409 | buildstr[0] = '\0'; | |
410 | ||
411 | snprintf(drv->fw.fw_version, | |
412 | sizeof(drv->fw.fw_version), | |
413 | "%u.%u.%u.%u%s", | |
414 | IWL_UCODE_MAJOR(drv->fw.ucode_ver), | |
415 | IWL_UCODE_MINOR(drv->fw.ucode_ver), | |
416 | IWL_UCODE_API(drv->fw.ucode_ver), | |
417 | IWL_UCODE_SERIAL(drv->fw.ucode_ver), | |
418 | buildstr); | |
419 | ||
420 | /* Verify size of file vs. image size info in file's header */ | |
421 | ||
422 | if (ucode_raw->size != hdr_size + | |
423 | get_sec_size(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_INST) + | |
424 | get_sec_size(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_DATA) + | |
425 | get_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_INST) + | |
426 | get_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_DATA)) { | |
427 | ||
428 | IWL_ERR(drv, | |
429 | "uCode file size %d does not match expected size\n", | |
430 | (int)ucode_raw->size); | |
431 | return -EINVAL; | |
432 | } | |
433 | ||
434 | ||
435 | set_sec_data(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_INST, src); | |
436 | src += get_sec_size(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_INST); | |
437 | set_sec_offset(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_INST, | |
438 | IWLAGN_RTC_INST_LOWER_BOUND); | |
439 | set_sec_data(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_DATA, src); | |
440 | src += get_sec_size(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_DATA); | |
441 | set_sec_offset(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_DATA, | |
442 | IWLAGN_RTC_DATA_LOWER_BOUND); | |
443 | set_sec_data(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_INST, src); | |
444 | src += get_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_INST); | |
445 | set_sec_offset(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_INST, | |
446 | IWLAGN_RTC_INST_LOWER_BOUND); | |
447 | set_sec_data(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_DATA, src); | |
448 | src += get_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_DATA); | |
449 | set_sec_offset(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_DATA, | |
450 | IWLAGN_RTC_DATA_LOWER_BOUND); | |
451 | return 0; | |
452 | } | |
453 | ||
454 | static int iwl_parse_tlv_firmware(struct iwl_drv *drv, | |
455 | const struct firmware *ucode_raw, | |
456 | struct iwl_firmware_pieces *pieces, | |
457 | struct iwl_ucode_capabilities *capa) | |
458 | { | |
459 | struct iwl_tlv_ucode_header *ucode = (void *)ucode_raw->data; | |
460 | struct iwl_ucode_tlv *tlv; | |
461 | size_t len = ucode_raw->size; | |
462 | const u8 *data; | |
463 | u32 tlv_len; | |
464 | enum iwl_ucode_tlv_type tlv_type; | |
465 | const u8 *tlv_data; | |
466 | char buildstr[25]; | |
467 | u32 build; | |
468 | ||
469 | if (len < sizeof(*ucode)) { | |
470 | IWL_ERR(drv, "uCode has invalid length: %zd\n", len); | |
471 | return -EINVAL; | |
472 | } | |
473 | ||
474 | if (ucode->magic != cpu_to_le32(IWL_TLV_UCODE_MAGIC)) { | |
475 | IWL_ERR(drv, "invalid uCode magic: 0X%x\n", | |
476 | le32_to_cpu(ucode->magic)); | |
477 | return -EINVAL; | |
478 | } | |
479 | ||
480 | drv->fw.ucode_ver = le32_to_cpu(ucode->ver); | |
481 | build = le32_to_cpu(ucode->build); | |
482 | ||
483 | if (build) | |
484 | sprintf(buildstr, " build %u%s", build, | |
485 | (drv->fw_index == UCODE_EXPERIMENTAL_INDEX) | |
486 | ? " (EXP)" : ""); | |
487 | else | |
488 | buildstr[0] = '\0'; | |
489 | ||
490 | snprintf(drv->fw.fw_version, | |
491 | sizeof(drv->fw.fw_version), | |
492 | "%u.%u.%u.%u%s", | |
493 | IWL_UCODE_MAJOR(drv->fw.ucode_ver), | |
494 | IWL_UCODE_MINOR(drv->fw.ucode_ver), | |
495 | IWL_UCODE_API(drv->fw.ucode_ver), | |
496 | IWL_UCODE_SERIAL(drv->fw.ucode_ver), | |
497 | buildstr); | |
498 | ||
499 | data = ucode->data; | |
500 | ||
501 | len -= sizeof(*ucode); | |
502 | ||
503 | while (len >= sizeof(*tlv)) { | |
504 | len -= sizeof(*tlv); | |
505 | tlv = (void *)data; | |
506 | ||
507 | tlv_len = le32_to_cpu(tlv->length); | |
508 | tlv_type = le32_to_cpu(tlv->type); | |
509 | tlv_data = tlv->data; | |
510 | ||
511 | if (len < tlv_len) { | |
512 | IWL_ERR(drv, "invalid TLV len: %zd/%u\n", | |
513 | len, tlv_len); | |
514 | return -EINVAL; | |
515 | } | |
516 | len -= ALIGN(tlv_len, 4); | |
517 | data += sizeof(*tlv) + ALIGN(tlv_len, 4); | |
518 | ||
519 | switch (tlv_type) { | |
520 | case IWL_UCODE_TLV_INST: | |
521 | set_sec_data(pieces, IWL_UCODE_REGULAR, | |
522 | IWL_UCODE_SECTION_INST, tlv_data); | |
523 | set_sec_size(pieces, IWL_UCODE_REGULAR, | |
524 | IWL_UCODE_SECTION_INST, tlv_len); | |
525 | set_sec_offset(pieces, IWL_UCODE_REGULAR, | |
526 | IWL_UCODE_SECTION_INST, | |
527 | IWLAGN_RTC_INST_LOWER_BOUND); | |
528 | break; | |
529 | case IWL_UCODE_TLV_DATA: | |
530 | set_sec_data(pieces, IWL_UCODE_REGULAR, | |
531 | IWL_UCODE_SECTION_DATA, tlv_data); | |
532 | set_sec_size(pieces, IWL_UCODE_REGULAR, | |
533 | IWL_UCODE_SECTION_DATA, tlv_len); | |
534 | set_sec_offset(pieces, IWL_UCODE_REGULAR, | |
535 | IWL_UCODE_SECTION_DATA, | |
536 | IWLAGN_RTC_DATA_LOWER_BOUND); | |
537 | break; | |
538 | case IWL_UCODE_TLV_INIT: | |
539 | set_sec_data(pieces, IWL_UCODE_INIT, | |
540 | IWL_UCODE_SECTION_INST, tlv_data); | |
541 | set_sec_size(pieces, IWL_UCODE_INIT, | |
542 | IWL_UCODE_SECTION_INST, tlv_len); | |
543 | set_sec_offset(pieces, IWL_UCODE_INIT, | |
544 | IWL_UCODE_SECTION_INST, | |
545 | IWLAGN_RTC_INST_LOWER_BOUND); | |
546 | break; | |
547 | case IWL_UCODE_TLV_INIT_DATA: | |
548 | set_sec_data(pieces, IWL_UCODE_INIT, | |
549 | IWL_UCODE_SECTION_DATA, tlv_data); | |
550 | set_sec_size(pieces, IWL_UCODE_INIT, | |
551 | IWL_UCODE_SECTION_DATA, tlv_len); | |
552 | set_sec_offset(pieces, IWL_UCODE_INIT, | |
553 | IWL_UCODE_SECTION_DATA, | |
554 | IWLAGN_RTC_DATA_LOWER_BOUND); | |
555 | break; | |
556 | case IWL_UCODE_TLV_BOOT: | |
557 | IWL_ERR(drv, "Found unexpected BOOT ucode\n"); | |
558 | break; | |
559 | case IWL_UCODE_TLV_PROBE_MAX_LEN: | |
560 | if (tlv_len != sizeof(u32)) | |
561 | goto invalid_tlv_len; | |
562 | capa->max_probe_length = | |
563 | le32_to_cpup((__le32 *)tlv_data); | |
564 | break; | |
565 | case IWL_UCODE_TLV_PAN: | |
566 | if (tlv_len) | |
567 | goto invalid_tlv_len; | |
568 | capa->flags |= IWL_UCODE_TLV_FLAGS_PAN; | |
569 | break; | |
570 | case IWL_UCODE_TLV_FLAGS: | |
571 | /* must be at least one u32 */ | |
572 | if (tlv_len < sizeof(u32)) | |
573 | goto invalid_tlv_len; | |
574 | /* and a proper number of u32s */ | |
575 | if (tlv_len % sizeof(u32)) | |
576 | goto invalid_tlv_len; | |
577 | /* | |
578 | * This driver only reads the first u32 as | |
579 | * right now no more features are defined, | |
580 | * if that changes then either the driver | |
581 | * will not work with the new firmware, or | |
582 | * it'll not take advantage of new features. | |
583 | */ | |
584 | capa->flags = le32_to_cpup((__le32 *)tlv_data); | |
585 | break; | |
586 | case IWL_UCODE_TLV_INIT_EVTLOG_PTR: | |
587 | if (tlv_len != sizeof(u32)) | |
588 | goto invalid_tlv_len; | |
589 | pieces->init_evtlog_ptr = | |
590 | le32_to_cpup((__le32 *)tlv_data); | |
591 | break; | |
592 | case IWL_UCODE_TLV_INIT_EVTLOG_SIZE: | |
593 | if (tlv_len != sizeof(u32)) | |
594 | goto invalid_tlv_len; | |
595 | pieces->init_evtlog_size = | |
596 | le32_to_cpup((__le32 *)tlv_data); | |
597 | break; | |
598 | case IWL_UCODE_TLV_INIT_ERRLOG_PTR: | |
599 | if (tlv_len != sizeof(u32)) | |
600 | goto invalid_tlv_len; | |
601 | pieces->init_errlog_ptr = | |
602 | le32_to_cpup((__le32 *)tlv_data); | |
603 | break; | |
604 | case IWL_UCODE_TLV_RUNT_EVTLOG_PTR: | |
605 | if (tlv_len != sizeof(u32)) | |
606 | goto invalid_tlv_len; | |
607 | pieces->inst_evtlog_ptr = | |
608 | le32_to_cpup((__le32 *)tlv_data); | |
609 | break; | |
610 | case IWL_UCODE_TLV_RUNT_EVTLOG_SIZE: | |
611 | if (tlv_len != sizeof(u32)) | |
612 | goto invalid_tlv_len; | |
613 | pieces->inst_evtlog_size = | |
614 | le32_to_cpup((__le32 *)tlv_data); | |
615 | break; | |
616 | case IWL_UCODE_TLV_RUNT_ERRLOG_PTR: | |
617 | if (tlv_len != sizeof(u32)) | |
618 | goto invalid_tlv_len; | |
619 | pieces->inst_errlog_ptr = | |
620 | le32_to_cpup((__le32 *)tlv_data); | |
621 | break; | |
622 | case IWL_UCODE_TLV_ENHANCE_SENS_TBL: | |
623 | if (tlv_len) | |
624 | goto invalid_tlv_len; | |
625 | drv->fw.enhance_sensitivity_table = true; | |
626 | break; | |
627 | case IWL_UCODE_TLV_WOWLAN_INST: | |
628 | set_sec_data(pieces, IWL_UCODE_WOWLAN, | |
629 | IWL_UCODE_SECTION_INST, tlv_data); | |
630 | set_sec_size(pieces, IWL_UCODE_WOWLAN, | |
631 | IWL_UCODE_SECTION_INST, tlv_len); | |
632 | set_sec_offset(pieces, IWL_UCODE_WOWLAN, | |
633 | IWL_UCODE_SECTION_INST, | |
634 | IWLAGN_RTC_INST_LOWER_BOUND); | |
635 | break; | |
636 | case IWL_UCODE_TLV_WOWLAN_DATA: | |
637 | set_sec_data(pieces, IWL_UCODE_WOWLAN, | |
638 | IWL_UCODE_SECTION_DATA, tlv_data); | |
639 | set_sec_size(pieces, IWL_UCODE_WOWLAN, | |
640 | IWL_UCODE_SECTION_DATA, tlv_len); | |
641 | set_sec_offset(pieces, IWL_UCODE_WOWLAN, | |
642 | IWL_UCODE_SECTION_DATA, | |
643 | IWLAGN_RTC_DATA_LOWER_BOUND); | |
644 | break; | |
645 | case IWL_UCODE_TLV_PHY_CALIBRATION_SIZE: | |
646 | if (tlv_len != sizeof(u32)) | |
647 | goto invalid_tlv_len; | |
648 | capa->standard_phy_calibration_size = | |
649 | le32_to_cpup((__le32 *)tlv_data); | |
650 | break; | |
651 | case IWL_UCODE_TLV_SEC_RT: | |
652 | iwl_store_ucode_sec(pieces, tlv_data, IWL_UCODE_REGULAR, | |
653 | tlv_len); | |
654 | drv->fw.mvm_fw = true; | |
655 | break; | |
656 | case IWL_UCODE_TLV_SEC_INIT: | |
657 | iwl_store_ucode_sec(pieces, tlv_data, IWL_UCODE_INIT, | |
658 | tlv_len); | |
659 | drv->fw.mvm_fw = true; | |
660 | break; | |
661 | case IWL_UCODE_TLV_SEC_WOWLAN: | |
662 | iwl_store_ucode_sec(pieces, tlv_data, IWL_UCODE_WOWLAN, | |
663 | tlv_len); | |
664 | drv->fw.mvm_fw = true; | |
665 | break; | |
666 | case IWL_UCODE_TLV_DEF_CALIB: | |
667 | if (tlv_len != sizeof(struct iwl_tlv_calib_data)) | |
668 | goto invalid_tlv_len; | |
669 | if (iwl_set_default_calib(drv, tlv_data)) | |
670 | goto tlv_error; | |
671 | break; | |
672 | case IWL_UCODE_TLV_PHY_SKU: | |
673 | if (tlv_len != sizeof(u32)) | |
674 | goto invalid_tlv_len; | |
675 | drv->fw.phy_config = le32_to_cpup((__le32 *)tlv_data); | |
676 | break; | |
677 | default: | |
678 | IWL_DEBUG_INFO(drv, "unknown TLV: %d\n", tlv_type); | |
679 | break; | |
680 | } | |
681 | } | |
682 | ||
683 | if (len) { | |
684 | IWL_ERR(drv, "invalid TLV after parsing: %zd\n", len); | |
685 | iwl_print_hex_dump(drv, IWL_DL_FW, (u8 *)data, len); | |
686 | return -EINVAL; | |
687 | } | |
688 | ||
689 | return 0; | |
690 | ||
691 | invalid_tlv_len: | |
692 | IWL_ERR(drv, "TLV %d has invalid size: %u\n", tlv_type, tlv_len); | |
693 | tlv_error: | |
694 | iwl_print_hex_dump(drv, IWL_DL_FW, tlv_data, tlv_len); | |
695 | ||
696 | return -EINVAL; | |
697 | } | |
698 | ||
699 | static int iwl_alloc_ucode(struct iwl_drv *drv, | |
700 | struct iwl_firmware_pieces *pieces, | |
701 | enum iwl_ucode_type type) | |
702 | { | |
703 | int i; | |
704 | for (i = 0; | |
705 | i < IWL_UCODE_SECTION_MAX && get_sec_size(pieces, type, i); | |
706 | i++) | |
707 | if (iwl_alloc_fw_desc(drv, &(drv->fw.img[type].sec[i]), | |
708 | get_sec(pieces, type, i))) | |
709 | return -ENOMEM; | |
710 | return 0; | |
711 | } | |
712 | ||
713 | static int validate_sec_sizes(struct iwl_drv *drv, | |
714 | struct iwl_firmware_pieces *pieces, | |
715 | const struct iwl_cfg *cfg) | |
716 | { | |
717 | IWL_DEBUG_INFO(drv, "f/w package hdr runtime inst size = %Zd\n", | |
718 | get_sec_size(pieces, IWL_UCODE_REGULAR, | |
719 | IWL_UCODE_SECTION_INST)); | |
720 | IWL_DEBUG_INFO(drv, "f/w package hdr runtime data size = %Zd\n", | |
721 | get_sec_size(pieces, IWL_UCODE_REGULAR, | |
722 | IWL_UCODE_SECTION_DATA)); | |
723 | IWL_DEBUG_INFO(drv, "f/w package hdr init inst size = %Zd\n", | |
724 | get_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_INST)); | |
725 | IWL_DEBUG_INFO(drv, "f/w package hdr init data size = %Zd\n", | |
726 | get_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_DATA)); | |
727 | ||
728 | /* Verify that uCode images will fit in card's SRAM. */ | |
729 | if (get_sec_size(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_INST) > | |
730 | cfg->max_inst_size) { | |
731 | IWL_ERR(drv, "uCode instr len %Zd too large to fit in\n", | |
732 | get_sec_size(pieces, IWL_UCODE_REGULAR, | |
733 | IWL_UCODE_SECTION_INST)); | |
734 | return -1; | |
735 | } | |
736 | ||
737 | if (get_sec_size(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_DATA) > | |
738 | cfg->max_data_size) { | |
739 | IWL_ERR(drv, "uCode data len %Zd too large to fit in\n", | |
740 | get_sec_size(pieces, IWL_UCODE_REGULAR, | |
741 | IWL_UCODE_SECTION_DATA)); | |
742 | return -1; | |
743 | } | |
744 | ||
745 | if (get_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_INST) > | |
746 | cfg->max_inst_size) { | |
747 | IWL_ERR(drv, "uCode init instr len %Zd too large to fit in\n", | |
748 | get_sec_size(pieces, IWL_UCODE_INIT, | |
749 | IWL_UCODE_SECTION_INST)); | |
750 | return -1; | |
751 | } | |
752 | ||
753 | if (get_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_DATA) > | |
754 | cfg->max_data_size) { | |
755 | IWL_ERR(drv, "uCode init data len %Zd too large to fit in\n", | |
756 | get_sec_size(pieces, IWL_UCODE_REGULAR, | |
757 | IWL_UCODE_SECTION_DATA)); | |
758 | return -1; | |
759 | } | |
760 | return 0; | |
761 | } | |
762 | ||
763 | /** | |
764 | * iwl_req_fw_callback - callback when firmware was loaded | |
765 | * | |
766 | * If loaded successfully, copies the firmware into buffers | |
767 | * for the card to fetch (via DMA). | |
768 | */ | |
769 | static void iwl_req_fw_callback(const struct firmware *ucode_raw, void *context) | |
770 | { | |
771 | struct iwl_drv *drv = context; | |
772 | struct iwl_fw *fw = &drv->fw; | |
773 | struct iwl_ucode_header *ucode; | |
774 | struct iwlwifi_opmode_table *op; | |
775 | int err; | |
776 | struct iwl_firmware_pieces pieces; | |
777 | const unsigned int api_max = drv->cfg->ucode_api_max; | |
778 | unsigned int api_ok = drv->cfg->ucode_api_ok; | |
779 | const unsigned int api_min = drv->cfg->ucode_api_min; | |
780 | u32 api_ver; | |
781 | int i; | |
782 | bool load_module = false; | |
783 | ||
784 | fw->ucode_capa.max_probe_length = 200; | |
785 | fw->ucode_capa.standard_phy_calibration_size = | |
786 | IWL_DEFAULT_STANDARD_PHY_CALIBRATE_TBL_SIZE; | |
787 | ||
788 | if (!api_ok) | |
789 | api_ok = api_max; | |
790 | ||
791 | memset(&pieces, 0, sizeof(pieces)); | |
792 | ||
793 | if (!ucode_raw) { | |
794 | if (drv->fw_index <= api_ok) | |
795 | IWL_ERR(drv, | |
796 | "request for firmware file '%s' failed.\n", | |
797 | drv->firmware_name); | |
798 | goto try_again; | |
799 | } | |
800 | ||
801 | IWL_DEBUG_INFO(drv, "Loaded firmware file '%s' (%zd bytes).\n", | |
802 | drv->firmware_name, ucode_raw->size); | |
803 | ||
804 | /* Make sure that we got at least the API version number */ | |
805 | if (ucode_raw->size < 4) { | |
806 | IWL_ERR(drv, "File size way too small!\n"); | |
807 | goto try_again; | |
808 | } | |
809 | ||
810 | /* Data from ucode file: header followed by uCode images */ | |
811 | ucode = (struct iwl_ucode_header *)ucode_raw->data; | |
812 | ||
813 | if (ucode->ver) | |
814 | err = iwl_parse_v1_v2_firmware(drv, ucode_raw, &pieces); | |
815 | else | |
816 | err = iwl_parse_tlv_firmware(drv, ucode_raw, &pieces, | |
817 | &fw->ucode_capa); | |
818 | ||
819 | if (err) | |
820 | goto try_again; | |
821 | ||
822 | api_ver = IWL_UCODE_API(drv->fw.ucode_ver); | |
823 | ||
824 | /* | |
825 | * api_ver should match the api version forming part of the | |
826 | * firmware filename ... but we don't check for that and only rely | |
827 | * on the API version read from firmware header from here on forward | |
828 | */ | |
829 | /* no api version check required for experimental uCode */ | |
830 | if (drv->fw_index != UCODE_EXPERIMENTAL_INDEX) { | |
831 | if (api_ver < api_min || api_ver > api_max) { | |
832 | IWL_ERR(drv, | |
833 | "Driver unable to support your firmware API. " | |
834 | "Driver supports v%u, firmware is v%u.\n", | |
835 | api_max, api_ver); | |
836 | goto try_again; | |
837 | } | |
838 | ||
839 | if (api_ver < api_ok) { | |
840 | if (api_ok != api_max) | |
841 | IWL_ERR(drv, "Firmware has old API version, " | |
842 | "expected v%u through v%u, got v%u.\n", | |
843 | api_ok, api_max, api_ver); | |
844 | else | |
845 | IWL_ERR(drv, "Firmware has old API version, " | |
846 | "expected v%u, got v%u.\n", | |
847 | api_max, api_ver); | |
848 | IWL_ERR(drv, "New firmware can be obtained from " | |
849 | "http://www.intellinuxwireless.org/.\n"); | |
850 | } | |
851 | } | |
852 | ||
853 | IWL_INFO(drv, "loaded firmware version %s", drv->fw.fw_version); | |
854 | ||
855 | /* | |
856 | * In mvm uCode there is no difference between data and instructions | |
857 | * sections. | |
858 | */ | |
859 | if (!fw->mvm_fw && validate_sec_sizes(drv, &pieces, drv->cfg)) | |
860 | goto try_again; | |
861 | ||
862 | /* Allocate ucode buffers for card's bus-master loading ... */ | |
863 | ||
864 | /* Runtime instructions and 2 copies of data: | |
865 | * 1) unmodified from disk | |
866 | * 2) backup cache for save/restore during power-downs */ | |
867 | for (i = 0; i < IWL_UCODE_TYPE_MAX; i++) | |
868 | if (iwl_alloc_ucode(drv, &pieces, i)) | |
869 | goto out_free_fw; | |
870 | ||
871 | /* Now that we can no longer fail, copy information */ | |
872 | ||
873 | /* | |
874 | * The (size - 16) / 12 formula is based on the information recorded | |
875 | * for each event, which is of mode 1 (including timestamp) for all | |
876 | * new microcodes that include this information. | |
877 | */ | |
878 | fw->init_evtlog_ptr = pieces.init_evtlog_ptr; | |
879 | if (pieces.init_evtlog_size) | |
880 | fw->init_evtlog_size = (pieces.init_evtlog_size - 16)/12; | |
881 | else | |
882 | fw->init_evtlog_size = | |
883 | drv->cfg->base_params->max_event_log_size; | |
884 | fw->init_errlog_ptr = pieces.init_errlog_ptr; | |
885 | fw->inst_evtlog_ptr = pieces.inst_evtlog_ptr; | |
886 | if (pieces.inst_evtlog_size) | |
887 | fw->inst_evtlog_size = (pieces.inst_evtlog_size - 16)/12; | |
888 | else | |
889 | fw->inst_evtlog_size = | |
890 | drv->cfg->base_params->max_event_log_size; | |
891 | fw->inst_errlog_ptr = pieces.inst_errlog_ptr; | |
892 | ||
893 | /* | |
894 | * figure out the offset of chain noise reset and gain commands | |
895 | * base on the size of standard phy calibration commands table size | |
896 | */ | |
897 | if (fw->ucode_capa.standard_phy_calibration_size > | |
898 | IWL_MAX_PHY_CALIBRATE_TBL_SIZE) | |
899 | fw->ucode_capa.standard_phy_calibration_size = | |
900 | IWL_MAX_STANDARD_PHY_CALIBRATE_TBL_SIZE; | |
901 | ||
902 | /* We have our copies now, allow OS release its copies */ | |
903 | release_firmware(ucode_raw); | |
904 | ||
905 | mutex_lock(&iwlwifi_opmode_table_mtx); | |
906 | op = &iwlwifi_opmode_table[DVM_OP_MODE]; | |
907 | ||
908 | /* add this device to the list of devices using this op_mode */ | |
909 | list_add_tail(&drv->list, &op->drv); | |
910 | ||
911 | if (op->ops) { | |
912 | const struct iwl_op_mode_ops *ops = op->ops; | |
913 | drv->op_mode = ops->start(drv->trans, drv->cfg, &drv->fw); | |
914 | ||
915 | if (!drv->op_mode) { | |
916 | mutex_unlock(&iwlwifi_opmode_table_mtx); | |
917 | goto out_unbind; | |
918 | } | |
919 | } else { | |
920 | load_module = true; | |
921 | } | |
922 | mutex_unlock(&iwlwifi_opmode_table_mtx); | |
923 | ||
924 | /* | |
925 | * Complete the firmware request last so that | |
926 | * a driver unbind (stop) doesn't run while we | |
927 | * are doing the start() above. | |
928 | */ | |
929 | complete(&drv->request_firmware_complete); | |
930 | ||
931 | /* | |
932 | * Load the module last so we don't block anything | |
933 | * else from proceeding if the module fails to load | |
934 | * or hangs loading. | |
935 | */ | |
936 | if (load_module) | |
937 | request_module("%s", op->name); | |
938 | return; | |
939 | ||
940 | try_again: | |
941 | /* try next, if any */ | |
942 | release_firmware(ucode_raw); | |
943 | if (iwl_request_firmware(drv, false)) | |
944 | goto out_unbind; | |
945 | return; | |
946 | ||
947 | out_free_fw: | |
948 | IWL_ERR(drv, "failed to allocate pci memory\n"); | |
949 | iwl_dealloc_ucode(drv); | |
950 | release_firmware(ucode_raw); | |
951 | out_unbind: | |
952 | complete(&drv->request_firmware_complete); | |
953 | device_release_driver(drv->trans->dev); | |
954 | } | |
955 | ||
956 | struct iwl_drv *iwl_drv_start(struct iwl_trans *trans, | |
957 | const struct iwl_cfg *cfg) | |
958 | { | |
959 | struct iwl_drv *drv; | |
960 | int ret; | |
961 | ||
962 | drv = kzalloc(sizeof(*drv), GFP_KERNEL); | |
963 | if (!drv) | |
964 | return NULL; | |
965 | ||
966 | drv->trans = trans; | |
967 | drv->dev = trans->dev; | |
968 | drv->cfg = cfg; | |
969 | ||
970 | init_completion(&drv->request_firmware_complete); | |
971 | INIT_LIST_HEAD(&drv->list); | |
972 | ||
973 | ret = iwl_request_firmware(drv, true); | |
974 | ||
975 | if (ret) { | |
976 | IWL_ERR(trans, "Couldn't request the fw\n"); | |
977 | kfree(drv); | |
978 | drv = NULL; | |
979 | } | |
980 | ||
981 | return drv; | |
982 | } | |
983 | ||
984 | void iwl_drv_stop(struct iwl_drv *drv) | |
985 | { | |
986 | wait_for_completion(&drv->request_firmware_complete); | |
987 | ||
988 | /* op_mode can be NULL if its start failed */ | |
989 | if (drv->op_mode) | |
990 | iwl_op_mode_stop(drv->op_mode); | |
991 | ||
992 | iwl_dealloc_ucode(drv); | |
993 | ||
994 | mutex_lock(&iwlwifi_opmode_table_mtx); | |
995 | /* | |
996 | * List is empty (this item wasn't added) | |
997 | * when firmware loading failed -- in that | |
998 | * case we can't remove it from any list. | |
999 | */ | |
1000 | if (!list_empty(&drv->list)) | |
1001 | list_del(&drv->list); | |
1002 | mutex_unlock(&iwlwifi_opmode_table_mtx); | |
1003 | ||
1004 | kfree(drv); | |
1005 | } | |
1006 | ||
1007 | ||
1008 | /* shared module parameters */ | |
1009 | struct iwl_mod_params iwlwifi_mod_params = { | |
1010 | .amsdu_size_8K = 1, | |
1011 | .restart_fw = 1, | |
1012 | .plcp_check = true, | |
1013 | .bt_coex_active = true, | |
1014 | .power_level = IWL_POWER_INDEX_1, | |
1015 | .bt_ch_announce = true, | |
1016 | .auto_agg = true, | |
1017 | .wd_disable = true, | |
1018 | /* the rest are 0 by default */ | |
1019 | }; | |
1020 | EXPORT_SYMBOL_GPL(iwlwifi_mod_params); | |
1021 | ||
1022 | int iwl_opmode_register(const char *name, const struct iwl_op_mode_ops *ops) | |
1023 | { | |
1024 | int i; | |
1025 | struct iwl_drv *drv; | |
1026 | ||
1027 | mutex_lock(&iwlwifi_opmode_table_mtx); | |
1028 | for (i = 0; i < ARRAY_SIZE(iwlwifi_opmode_table); i++) { | |
1029 | if (strcmp(iwlwifi_opmode_table[i].name, name)) | |
1030 | continue; | |
1031 | iwlwifi_opmode_table[i].ops = ops; | |
1032 | list_for_each_entry(drv, &iwlwifi_opmode_table[i].drv, list) | |
1033 | drv->op_mode = ops->start(drv->trans, drv->cfg, | |
1034 | &drv->fw); | |
1035 | mutex_unlock(&iwlwifi_opmode_table_mtx); | |
1036 | return 0; | |
1037 | } | |
1038 | mutex_unlock(&iwlwifi_opmode_table_mtx); | |
1039 | return -EIO; | |
1040 | } | |
1041 | EXPORT_SYMBOL_GPL(iwl_opmode_register); | |
1042 | ||
1043 | void iwl_opmode_deregister(const char *name) | |
1044 | { | |
1045 | int i; | |
1046 | struct iwl_drv *drv; | |
1047 | ||
1048 | mutex_lock(&iwlwifi_opmode_table_mtx); | |
1049 | for (i = 0; i < ARRAY_SIZE(iwlwifi_opmode_table); i++) { | |
1050 | if (strcmp(iwlwifi_opmode_table[i].name, name)) | |
1051 | continue; | |
1052 | iwlwifi_opmode_table[i].ops = NULL; | |
1053 | ||
1054 | /* call the stop routine for all devices */ | |
1055 | list_for_each_entry(drv, &iwlwifi_opmode_table[i].drv, list) { | |
1056 | if (drv->op_mode) { | |
1057 | iwl_op_mode_stop(drv->op_mode); | |
1058 | drv->op_mode = NULL; | |
1059 | } | |
1060 | } | |
1061 | mutex_unlock(&iwlwifi_opmode_table_mtx); | |
1062 | return; | |
1063 | } | |
1064 | mutex_unlock(&iwlwifi_opmode_table_mtx); | |
1065 | } | |
1066 | EXPORT_SYMBOL_GPL(iwl_opmode_deregister); | |
1067 | ||
1068 | static int __init iwl_drv_init(void) | |
1069 | { | |
1070 | int i; | |
1071 | ||
1072 | mutex_init(&iwlwifi_opmode_table_mtx); | |
1073 | ||
1074 | for (i = 0; i < ARRAY_SIZE(iwlwifi_opmode_table); i++) | |
1075 | INIT_LIST_HEAD(&iwlwifi_opmode_table[i].drv); | |
1076 | ||
1077 | pr_info(DRV_DESCRIPTION ", " DRV_VERSION "\n"); | |
1078 | pr_info(DRV_COPYRIGHT "\n"); | |
1079 | ||
1080 | return iwl_pci_register_driver(); | |
1081 | } | |
1082 | module_init(iwl_drv_init); | |
1083 | ||
1084 | static void __exit iwl_drv_exit(void) | |
1085 | { | |
1086 | iwl_pci_unregister_driver(); | |
1087 | } | |
1088 | module_exit(iwl_drv_exit); | |
1089 | ||
1090 | #ifdef CONFIG_IWLWIFI_DEBUG | |
1091 | module_param_named(debug, iwlwifi_mod_params.debug_level, uint, | |
1092 | S_IRUGO | S_IWUSR); | |
1093 | MODULE_PARM_DESC(debug, "debug output mask"); | |
1094 | #endif | |
1095 | ||
1096 | module_param_named(swcrypto, iwlwifi_mod_params.sw_crypto, int, S_IRUGO); | |
1097 | MODULE_PARM_DESC(swcrypto, "using crypto in software (default 0 [hardware])"); | |
1098 | module_param_named(11n_disable, iwlwifi_mod_params.disable_11n, uint, S_IRUGO); | |
1099 | MODULE_PARM_DESC(11n_disable, | |
1100 | "disable 11n functionality, bitmap: 1: full, 2: agg TX, 4: agg RX"); | |
1101 | module_param_named(amsdu_size_8K, iwlwifi_mod_params.amsdu_size_8K, | |
1102 | int, S_IRUGO); | |
1103 | MODULE_PARM_DESC(amsdu_size_8K, "enable 8K amsdu size"); | |
1104 | module_param_named(fw_restart, iwlwifi_mod_params.restart_fw, int, S_IRUGO); | |
1105 | MODULE_PARM_DESC(fw_restart, "restart firmware in case of error"); | |
1106 | ||
1107 | module_param_named(antenna_coupling, iwlwifi_mod_params.ant_coupling, | |
1108 | int, S_IRUGO); | |
1109 | MODULE_PARM_DESC(antenna_coupling, | |
1110 | "specify antenna coupling in dB (defualt: 0 dB)"); | |
1111 | ||
1112 | module_param_named(bt_ch_inhibition, iwlwifi_mod_params.bt_ch_announce, | |
1113 | bool, S_IRUGO); | |
1114 | MODULE_PARM_DESC(bt_ch_inhibition, | |
1115 | "Enable BT channel inhibition (default: enable)"); | |
1116 | ||
1117 | module_param_named(plcp_check, iwlwifi_mod_params.plcp_check, bool, S_IRUGO); | |
1118 | MODULE_PARM_DESC(plcp_check, "Check plcp health (default: 1 [enabled])"); | |
1119 | ||
1120 | module_param_named(wd_disable, iwlwifi_mod_params.wd_disable, int, S_IRUGO); | |
1121 | MODULE_PARM_DESC(wd_disable, | |
1122 | "Disable stuck queue watchdog timer 0=system default, " | |
1123 | "1=disable, 2=enable (default: 0)"); | |
1124 | ||
1125 | /* | |
1126 | * set bt_coex_active to true, uCode will do kill/defer | |
1127 | * every time the priority line is asserted (BT is sending signals on the | |
1128 | * priority line in the PCIx). | |
1129 | * set bt_coex_active to false, uCode will ignore the BT activity and | |
1130 | * perform the normal operation | |
1131 | * | |
1132 | * User might experience transmit issue on some platform due to WiFi/BT | |
1133 | * co-exist problem. The possible behaviors are: | |
1134 | * Able to scan and finding all the available AP | |
1135 | * Not able to associate with any AP | |
1136 | * On those platforms, WiFi communication can be restored by set | |
1137 | * "bt_coex_active" module parameter to "false" | |
1138 | * | |
1139 | * default: bt_coex_active = true (BT_COEX_ENABLE) | |
1140 | */ | |
1141 | module_param_named(bt_coex_active, iwlwifi_mod_params.bt_coex_active, | |
1142 | bool, S_IRUGO); | |
1143 | MODULE_PARM_DESC(bt_coex_active, "enable wifi/bt co-exist (default: enable)"); | |
1144 | ||
1145 | module_param_named(led_mode, iwlwifi_mod_params.led_mode, int, S_IRUGO); | |
1146 | MODULE_PARM_DESC(led_mode, "0=system default, " | |
1147 | "1=On(RF On)/Off(RF Off), 2=blinking, 3=Off (default: 0)"); | |
1148 | ||
1149 | module_param_named(power_save, iwlwifi_mod_params.power_save, | |
1150 | bool, S_IRUGO); | |
1151 | MODULE_PARM_DESC(power_save, | |
1152 | "enable WiFi power management (default: disable)"); | |
1153 | ||
1154 | module_param_named(power_level, iwlwifi_mod_params.power_level, | |
1155 | int, S_IRUGO); | |
1156 | MODULE_PARM_DESC(power_level, | |
1157 | "default power save level (range from 1 - 5, default: 1)"); | |
1158 | ||
1159 | module_param_named(auto_agg, iwlwifi_mod_params.auto_agg, | |
1160 | bool, S_IRUGO); | |
1161 | MODULE_PARM_DESC(auto_agg, | |
1162 | "enable agg w/o check traffic load (default: enable)"); | |
1163 | ||
1164 | module_param_named(5ghz_disable, iwlwifi_mod_params.disable_5ghz, | |
1165 | bool, S_IRUGO); | |
1166 | MODULE_PARM_DESC(5ghz_disable, "disable 5GHz band (default: 0 [enabled])"); |