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5c58edc6 EG |
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> | |
15854ef9 JB |
64 | #include <linux/dma-mapping.h> |
65 | #include <linux/firmware.h> | |
66 | #include <linux/module.h> | |
5c58edc6 EG |
67 | |
68 | #include "iwl-drv.h" | |
69 | #include "iwl-trans.h" | |
15854ef9 | 70 | #include "iwl-shared.h" |
d0f76d68 | 71 | #include "iwl-op-mode.h" |
0cedacc5 | 72 | #include "iwl-agn-hw.h" |
5c58edc6 | 73 | |
0692fe41 | 74 | /* private includes */ |
3995deaf | 75 | #include "iwl-fw-file.h" |
0692fe41 | 76 | |
965974a6 JB |
77 | /** |
78 | * struct iwl_drv - drv common data | |
79 | * @fw: the iwl_fw structure | |
80 | * @shrd: pointer to common shared structure | |
81 | * @op_mode: the running op_mode | |
82 | * @fw_index: firmware revision to try loading | |
83 | * @firmware_name: composite filename of ucode file to load | |
84 | * @request_firmware_complete: the firmware has been obtained from user space | |
85 | */ | |
86 | struct iwl_drv { | |
87 | struct iwl_fw fw; | |
88 | ||
89 | struct iwl_shared *shrd; | |
90 | struct iwl_op_mode *op_mode; | |
9130bab1 | 91 | struct iwl_trans *trans; |
965974a6 JB |
92 | |
93 | int fw_index; /* firmware we're trying to load */ | |
94 | char firmware_name[25]; /* name of firmware file to load */ | |
95 | ||
96 | struct completion request_firmware_complete; | |
97 | }; | |
98 | ||
99 | ||
100 | ||
0cedacc5 DS |
101 | /* |
102 | * struct fw_sec: Just for the image parsing proccess. | |
103 | * For the fw storage we are using struct fw_desc. | |
104 | */ | |
105 | struct fw_sec { | |
106 | const void *data; /* the sec data */ | |
107 | size_t size; /* section size */ | |
108 | u32 offset; /* offset of writing in the device */ | |
109 | }; | |
110 | ||
965974a6 | 111 | static void iwl_free_fw_desc(struct iwl_drv *drv, struct fw_desc *desc) |
15854ef9 JB |
112 | { |
113 | if (desc->v_addr) | |
965974a6 | 114 | dma_free_coherent(trans(drv)->dev, desc->len, |
15854ef9 JB |
115 | desc->v_addr, desc->p_addr); |
116 | desc->v_addr = NULL; | |
117 | desc->len = 0; | |
118 | } | |
119 | ||
965974a6 | 120 | static void iwl_free_fw_img(struct iwl_drv *drv, struct fw_img *img) |
15854ef9 | 121 | { |
6dfa8d01 DS |
122 | int i; |
123 | for (i = 0; i < IWL_UCODE_SECTION_MAX; i++) | |
124 | iwl_free_fw_desc(drv, &img->sec[i]); | |
15854ef9 JB |
125 | } |
126 | ||
965974a6 | 127 | static void iwl_dealloc_ucode(struct iwl_drv *drv) |
15854ef9 | 128 | { |
6dfa8d01 DS |
129 | int i; |
130 | for (i = 0; i < IWL_UCODE_TYPE_MAX; i++) | |
131 | iwl_free_fw_img(drv, drv->fw.img + i); | |
15854ef9 JB |
132 | } |
133 | ||
965974a6 | 134 | static int iwl_alloc_fw_desc(struct iwl_drv *drv, struct fw_desc *desc, |
0cedacc5 | 135 | struct fw_sec *sec) |
15854ef9 | 136 | { |
0cedacc5 | 137 | if (!sec || !sec->size) { |
15854ef9 JB |
138 | desc->v_addr = NULL; |
139 | return -EINVAL; | |
140 | } | |
141 | ||
0cedacc5 | 142 | desc->v_addr = dma_alloc_coherent(trans(drv)->dev, sec->size, |
15854ef9 JB |
143 | &desc->p_addr, GFP_KERNEL); |
144 | if (!desc->v_addr) | |
145 | return -ENOMEM; | |
146 | ||
0cedacc5 DS |
147 | desc->len = sec->size; |
148 | desc->offset = sec->offset; | |
149 | memcpy(desc->v_addr, sec->data, sec->size); | |
15854ef9 JB |
150 | return 0; |
151 | } | |
152 | ||
153 | static void iwl_ucode_callback(const struct firmware *ucode_raw, void *context); | |
154 | ||
155 | #define UCODE_EXPERIMENTAL_INDEX 100 | |
156 | #define UCODE_EXPERIMENTAL_TAG "exp" | |
157 | ||
965974a6 | 158 | static int iwl_request_firmware(struct iwl_drv *drv, bool first) |
15854ef9 | 159 | { |
965974a6 | 160 | const struct iwl_cfg *cfg = cfg(drv); |
15854ef9 JB |
161 | const char *name_pre = cfg->fw_name_pre; |
162 | char tag[8]; | |
163 | ||
164 | if (first) { | |
165 | #ifdef CONFIG_IWLWIFI_DEBUG_EXPERIMENTAL_UCODE | |
965974a6 | 166 | drv->fw_index = UCODE_EXPERIMENTAL_INDEX; |
15854ef9 | 167 | strcpy(tag, UCODE_EXPERIMENTAL_TAG); |
965974a6 | 168 | } else if (drv->fw_index == UCODE_EXPERIMENTAL_INDEX) { |
15854ef9 | 169 | #endif |
965974a6 JB |
170 | drv->fw_index = cfg->ucode_api_max; |
171 | sprintf(tag, "%d", drv->fw_index); | |
15854ef9 | 172 | } else { |
965974a6 JB |
173 | drv->fw_index--; |
174 | sprintf(tag, "%d", drv->fw_index); | |
15854ef9 JB |
175 | } |
176 | ||
965974a6 JB |
177 | if (drv->fw_index < cfg->ucode_api_min) { |
178 | IWL_ERR(drv, "no suitable firmware found!\n"); | |
15854ef9 JB |
179 | return -ENOENT; |
180 | } | |
181 | ||
965974a6 | 182 | sprintf(drv->firmware_name, "%s%s%s", name_pre, tag, ".ucode"); |
15854ef9 | 183 | |
965974a6 JB |
184 | IWL_DEBUG_INFO(drv, "attempting to load firmware %s'%s'\n", |
185 | (drv->fw_index == UCODE_EXPERIMENTAL_INDEX) | |
15854ef9 | 186 | ? "EXPERIMENTAL " : "", |
965974a6 | 187 | drv->firmware_name); |
15854ef9 | 188 | |
965974a6 JB |
189 | return request_firmware_nowait(THIS_MODULE, 1, drv->firmware_name, |
190 | trans(drv)->dev, | |
191 | GFP_KERNEL, drv, iwl_ucode_callback); | |
15854ef9 JB |
192 | } |
193 | ||
0cedacc5 | 194 | struct fw_img_parsing { |
6dfa8d01 | 195 | struct fw_sec sec[IWL_UCODE_SECTION_MAX]; |
0cedacc5 DS |
196 | int sec_counter; |
197 | }; | |
198 | ||
ed8c8365 DS |
199 | /* |
200 | * struct fw_sec_parsing: to extract fw section and it's offset from tlv | |
201 | */ | |
202 | struct fw_sec_parsing { | |
203 | __le32 offset; | |
204 | const u8 data[]; | |
205 | } __packed; | |
206 | ||
207 | /** | |
208 | * struct iwl_tlv_calib_data - parse the default calib data from TLV | |
209 | * | |
210 | * @ucode_type: the uCode to which the following default calib relates. | |
211 | * @calib: default calibrations. | |
212 | */ | |
213 | struct iwl_tlv_calib_data { | |
214 | __le32 ucode_type; | |
215 | __le64 calib; | |
216 | } __packed; | |
217 | ||
0cedacc5 DS |
218 | struct iwl_firmware_pieces { |
219 | struct fw_img_parsing img[IWL_UCODE_TYPE_MAX]; | |
15854ef9 JB |
220 | |
221 | u32 init_evtlog_ptr, init_evtlog_size, init_errlog_ptr; | |
222 | u32 inst_evtlog_ptr, inst_evtlog_size, inst_errlog_ptr; | |
223 | }; | |
224 | ||
0cedacc5 DS |
225 | /* |
226 | * These functions are just to extract uCode section data from the pieces | |
227 | * structure. | |
228 | */ | |
229 | static struct fw_sec *get_sec(struct iwl_firmware_pieces *pieces, | |
230 | enum iwl_ucode_type type, | |
231 | int sec) | |
232 | { | |
233 | return &pieces->img[type].sec[sec]; | |
234 | } | |
235 | ||
236 | static void set_sec_data(struct iwl_firmware_pieces *pieces, | |
237 | enum iwl_ucode_type type, | |
238 | int sec, | |
239 | const void *data) | |
240 | { | |
241 | pieces->img[type].sec[sec].data = data; | |
242 | } | |
243 | ||
244 | static void set_sec_size(struct iwl_firmware_pieces *pieces, | |
245 | enum iwl_ucode_type type, | |
246 | int sec, | |
247 | size_t size) | |
248 | { | |
249 | pieces->img[type].sec[sec].size = size; | |
250 | } | |
251 | ||
252 | static size_t get_sec_size(struct iwl_firmware_pieces *pieces, | |
253 | enum iwl_ucode_type type, | |
254 | int sec) | |
255 | { | |
256 | return pieces->img[type].sec[sec].size; | |
257 | } | |
258 | ||
259 | static void set_sec_offset(struct iwl_firmware_pieces *pieces, | |
260 | enum iwl_ucode_type type, | |
261 | int sec, | |
262 | u32 offset) | |
263 | { | |
264 | pieces->img[type].sec[sec].offset = offset; | |
265 | } | |
266 | ||
ed8c8365 DS |
267 | /* |
268 | * Gets uCode section from tlv. | |
269 | */ | |
270 | static int iwl_store_ucode_sec(struct iwl_firmware_pieces *pieces, | |
271 | const void *data, enum iwl_ucode_type type, | |
272 | int size) | |
273 | { | |
274 | struct fw_img_parsing *img; | |
275 | struct fw_sec *sec; | |
276 | struct fw_sec_parsing *sec_parse; | |
277 | ||
278 | if (WARN_ON(!pieces || !data || type >= IWL_UCODE_TYPE_MAX)) | |
279 | return -1; | |
280 | ||
281 | sec_parse = (struct fw_sec_parsing *)data; | |
282 | ||
283 | img = &pieces->img[type]; | |
284 | sec = &img->sec[img->sec_counter]; | |
285 | ||
286 | sec->offset = le32_to_cpu(sec_parse->offset); | |
287 | sec->data = sec_parse->data; | |
1176f431 | 288 | sec->size = size - sizeof(sec_parse->offset); |
ed8c8365 DS |
289 | |
290 | ++img->sec_counter; | |
291 | ||
292 | return 0; | |
293 | } | |
294 | ||
295 | static int iwl_set_default_calib(struct iwl_drv *drv, const u8 *data) | |
296 | { | |
297 | struct iwl_tlv_calib_data *def_calib = | |
298 | (struct iwl_tlv_calib_data *)data; | |
299 | u32 ucode_type = le32_to_cpu(def_calib->ucode_type); | |
300 | if (ucode_type >= IWL_UCODE_TYPE_MAX) { | |
301 | IWL_ERR(drv, "Wrong ucode_type %u for default calibration.\n", | |
302 | ucode_type); | |
303 | return -EINVAL; | |
304 | } | |
305 | drv->fw.default_calib[ucode_type] = le64_to_cpu(def_calib->calib); | |
306 | return 0; | |
307 | } | |
308 | ||
965974a6 | 309 | static int iwl_parse_v1_v2_firmware(struct iwl_drv *drv, |
0cedacc5 DS |
310 | const struct firmware *ucode_raw, |
311 | struct iwl_firmware_pieces *pieces) | |
15854ef9 JB |
312 | { |
313 | struct iwl_ucode_header *ucode = (void *)ucode_raw->data; | |
314 | u32 api_ver, hdr_size, build; | |
315 | char buildstr[25]; | |
316 | const u8 *src; | |
317 | ||
965974a6 JB |
318 | drv->fw.ucode_ver = le32_to_cpu(ucode->ver); |
319 | api_ver = IWL_UCODE_API(drv->fw.ucode_ver); | |
15854ef9 JB |
320 | |
321 | switch (api_ver) { | |
322 | default: | |
323 | hdr_size = 28; | |
324 | if (ucode_raw->size < hdr_size) { | |
965974a6 | 325 | IWL_ERR(drv, "File size too small!\n"); |
15854ef9 JB |
326 | return -EINVAL; |
327 | } | |
328 | build = le32_to_cpu(ucode->u.v2.build); | |
0cedacc5 DS |
329 | set_sec_size(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_INST, |
330 | le32_to_cpu(ucode->u.v2.inst_size)); | |
331 | set_sec_size(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_DATA, | |
332 | le32_to_cpu(ucode->u.v2.data_size)); | |
333 | set_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_INST, | |
334 | le32_to_cpu(ucode->u.v2.init_size)); | |
335 | set_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_DATA, | |
336 | le32_to_cpu(ucode->u.v2.init_data_size)); | |
15854ef9 JB |
337 | src = ucode->u.v2.data; |
338 | break; | |
339 | case 0: | |
340 | case 1: | |
341 | case 2: | |
342 | hdr_size = 24; | |
343 | if (ucode_raw->size < hdr_size) { | |
965974a6 | 344 | IWL_ERR(drv, "File size too small!\n"); |
15854ef9 JB |
345 | return -EINVAL; |
346 | } | |
347 | build = 0; | |
0cedacc5 DS |
348 | set_sec_size(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_INST, |
349 | le32_to_cpu(ucode->u.v1.inst_size)); | |
350 | set_sec_size(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_DATA, | |
351 | le32_to_cpu(ucode->u.v1.data_size)); | |
352 | set_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_INST, | |
353 | le32_to_cpu(ucode->u.v1.init_size)); | |
354 | set_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_DATA, | |
355 | le32_to_cpu(ucode->u.v1.init_data_size)); | |
15854ef9 JB |
356 | src = ucode->u.v1.data; |
357 | break; | |
358 | } | |
359 | ||
360 | if (build) | |
361 | sprintf(buildstr, " build %u%s", build, | |
965974a6 | 362 | (drv->fw_index == UCODE_EXPERIMENTAL_INDEX) |
15854ef9 JB |
363 | ? " (EXP)" : ""); |
364 | else | |
365 | buildstr[0] = '\0'; | |
366 | ||
965974a6 JB |
367 | snprintf(drv->fw.fw_version, |
368 | sizeof(drv->fw.fw_version), | |
15854ef9 | 369 | "%u.%u.%u.%u%s", |
965974a6 JB |
370 | IWL_UCODE_MAJOR(drv->fw.ucode_ver), |
371 | IWL_UCODE_MINOR(drv->fw.ucode_ver), | |
372 | IWL_UCODE_API(drv->fw.ucode_ver), | |
373 | IWL_UCODE_SERIAL(drv->fw.ucode_ver), | |
15854ef9 JB |
374 | buildstr); |
375 | ||
376 | /* Verify size of file vs. image size info in file's header */ | |
0cedacc5 DS |
377 | |
378 | if (ucode_raw->size != hdr_size + | |
379 | get_sec_size(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_INST) + | |
380 | get_sec_size(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_DATA) + | |
381 | get_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_INST) + | |
382 | get_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_DATA)) { | |
15854ef9 | 383 | |
965974a6 | 384 | IWL_ERR(drv, |
15854ef9 JB |
385 | "uCode file size %d does not match expected size\n", |
386 | (int)ucode_raw->size); | |
387 | return -EINVAL; | |
388 | } | |
389 | ||
15854ef9 | 390 | |
0cedacc5 DS |
391 | set_sec_data(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_INST, src); |
392 | src += get_sec_size(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_INST); | |
393 | set_sec_offset(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_INST, | |
394 | IWLAGN_RTC_INST_LOWER_BOUND); | |
395 | set_sec_data(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_DATA, src); | |
396 | src += get_sec_size(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_DATA); | |
397 | set_sec_offset(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_DATA, | |
398 | IWLAGN_RTC_DATA_LOWER_BOUND); | |
399 | set_sec_data(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_INST, src); | |
400 | src += get_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_INST); | |
401 | set_sec_offset(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_INST, | |
402 | IWLAGN_RTC_INST_LOWER_BOUND); | |
403 | set_sec_data(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_DATA, src); | |
404 | src += get_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_DATA); | |
405 | set_sec_offset(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_DATA, | |
406 | IWLAGN_RTC_DATA_LOWER_BOUND); | |
15854ef9 JB |
407 | return 0; |
408 | } | |
409 | ||
965974a6 | 410 | static int iwl_parse_tlv_firmware(struct iwl_drv *drv, |
15854ef9 | 411 | const struct firmware *ucode_raw, |
0cedacc5 | 412 | struct iwl_firmware_pieces *pieces, |
15854ef9 JB |
413 | struct iwl_ucode_capabilities *capa) |
414 | { | |
415 | struct iwl_tlv_ucode_header *ucode = (void *)ucode_raw->data; | |
416 | struct iwl_ucode_tlv *tlv; | |
417 | size_t len = ucode_raw->size; | |
418 | const u8 *data; | |
15854ef9 JB |
419 | u32 tlv_len; |
420 | enum iwl_ucode_tlv_type tlv_type; | |
421 | const u8 *tlv_data; | |
422 | char buildstr[25]; | |
423 | u32 build; | |
424 | ||
425 | if (len < sizeof(*ucode)) { | |
965974a6 | 426 | IWL_ERR(drv, "uCode has invalid length: %zd\n", len); |
15854ef9 JB |
427 | return -EINVAL; |
428 | } | |
429 | ||
430 | if (ucode->magic != cpu_to_le32(IWL_TLV_UCODE_MAGIC)) { | |
965974a6 | 431 | IWL_ERR(drv, "invalid uCode magic: 0X%x\n", |
15854ef9 JB |
432 | le32_to_cpu(ucode->magic)); |
433 | return -EINVAL; | |
434 | } | |
435 | ||
965974a6 | 436 | drv->fw.ucode_ver = le32_to_cpu(ucode->ver); |
15854ef9 JB |
437 | build = le32_to_cpu(ucode->build); |
438 | ||
439 | if (build) | |
440 | sprintf(buildstr, " build %u%s", build, | |
965974a6 | 441 | (drv->fw_index == UCODE_EXPERIMENTAL_INDEX) |
15854ef9 JB |
442 | ? " (EXP)" : ""); |
443 | else | |
444 | buildstr[0] = '\0'; | |
445 | ||
965974a6 JB |
446 | snprintf(drv->fw.fw_version, |
447 | sizeof(drv->fw.fw_version), | |
15854ef9 | 448 | "%u.%u.%u.%u%s", |
965974a6 JB |
449 | IWL_UCODE_MAJOR(drv->fw.ucode_ver), |
450 | IWL_UCODE_MINOR(drv->fw.ucode_ver), | |
451 | IWL_UCODE_API(drv->fw.ucode_ver), | |
452 | IWL_UCODE_SERIAL(drv->fw.ucode_ver), | |
15854ef9 JB |
453 | buildstr); |
454 | ||
455 | data = ucode->data; | |
456 | ||
457 | len -= sizeof(*ucode); | |
458 | ||
459 | while (len >= sizeof(*tlv)) { | |
15854ef9 JB |
460 | len -= sizeof(*tlv); |
461 | tlv = (void *)data; | |
462 | ||
463 | tlv_len = le32_to_cpu(tlv->length); | |
0479c19d | 464 | tlv_type = le32_to_cpu(tlv->type); |
15854ef9 JB |
465 | tlv_data = tlv->data; |
466 | ||
467 | if (len < tlv_len) { | |
965974a6 | 468 | IWL_ERR(drv, "invalid TLV len: %zd/%u\n", |
15854ef9 JB |
469 | len, tlv_len); |
470 | return -EINVAL; | |
471 | } | |
472 | len -= ALIGN(tlv_len, 4); | |
473 | data += sizeof(*tlv) + ALIGN(tlv_len, 4); | |
474 | ||
15854ef9 JB |
475 | switch (tlv_type) { |
476 | case IWL_UCODE_TLV_INST: | |
0cedacc5 DS |
477 | set_sec_data(pieces, IWL_UCODE_REGULAR, |
478 | IWL_UCODE_SECTION_INST, tlv_data); | |
479 | set_sec_size(pieces, IWL_UCODE_REGULAR, | |
480 | IWL_UCODE_SECTION_INST, tlv_len); | |
481 | set_sec_offset(pieces, IWL_UCODE_REGULAR, | |
482 | IWL_UCODE_SECTION_INST, | |
483 | IWLAGN_RTC_INST_LOWER_BOUND); | |
15854ef9 JB |
484 | break; |
485 | case IWL_UCODE_TLV_DATA: | |
0cedacc5 DS |
486 | set_sec_data(pieces, IWL_UCODE_REGULAR, |
487 | IWL_UCODE_SECTION_DATA, tlv_data); | |
488 | set_sec_size(pieces, IWL_UCODE_REGULAR, | |
489 | IWL_UCODE_SECTION_DATA, tlv_len); | |
490 | set_sec_offset(pieces, IWL_UCODE_REGULAR, | |
491 | IWL_UCODE_SECTION_DATA, | |
492 | IWLAGN_RTC_DATA_LOWER_BOUND); | |
15854ef9 JB |
493 | break; |
494 | case IWL_UCODE_TLV_INIT: | |
0cedacc5 DS |
495 | set_sec_data(pieces, IWL_UCODE_INIT, |
496 | IWL_UCODE_SECTION_INST, tlv_data); | |
497 | set_sec_size(pieces, IWL_UCODE_INIT, | |
498 | IWL_UCODE_SECTION_INST, tlv_len); | |
499 | set_sec_offset(pieces, IWL_UCODE_INIT, | |
500 | IWL_UCODE_SECTION_INST, | |
501 | IWLAGN_RTC_INST_LOWER_BOUND); | |
15854ef9 JB |
502 | break; |
503 | case IWL_UCODE_TLV_INIT_DATA: | |
0cedacc5 DS |
504 | set_sec_data(pieces, IWL_UCODE_INIT, |
505 | IWL_UCODE_SECTION_DATA, tlv_data); | |
506 | set_sec_size(pieces, IWL_UCODE_INIT, | |
507 | IWL_UCODE_SECTION_DATA, tlv_len); | |
508 | set_sec_offset(pieces, IWL_UCODE_INIT, | |
509 | IWL_UCODE_SECTION_DATA, | |
510 | IWLAGN_RTC_DATA_LOWER_BOUND); | |
15854ef9 JB |
511 | break; |
512 | case IWL_UCODE_TLV_BOOT: | |
965974a6 | 513 | IWL_ERR(drv, "Found unexpected BOOT ucode\n"); |
15854ef9 JB |
514 | break; |
515 | case IWL_UCODE_TLV_PROBE_MAX_LEN: | |
516 | if (tlv_len != sizeof(u32)) | |
517 | goto invalid_tlv_len; | |
518 | capa->max_probe_length = | |
519 | le32_to_cpup((__le32 *)tlv_data); | |
520 | break; | |
521 | case IWL_UCODE_TLV_PAN: | |
522 | if (tlv_len) | |
523 | goto invalid_tlv_len; | |
524 | capa->flags |= IWL_UCODE_TLV_FLAGS_PAN; | |
525 | break; | |
526 | case IWL_UCODE_TLV_FLAGS: | |
527 | /* must be at least one u32 */ | |
528 | if (tlv_len < sizeof(u32)) | |
529 | goto invalid_tlv_len; | |
530 | /* and a proper number of u32s */ | |
531 | if (tlv_len % sizeof(u32)) | |
532 | goto invalid_tlv_len; | |
533 | /* | |
534 | * This driver only reads the first u32 as | |
535 | * right now no more features are defined, | |
536 | * if that changes then either the driver | |
537 | * will not work with the new firmware, or | |
538 | * it'll not take advantage of new features. | |
539 | */ | |
540 | capa->flags = le32_to_cpup((__le32 *)tlv_data); | |
541 | break; | |
542 | case IWL_UCODE_TLV_INIT_EVTLOG_PTR: | |
543 | if (tlv_len != sizeof(u32)) | |
544 | goto invalid_tlv_len; | |
545 | pieces->init_evtlog_ptr = | |
546 | le32_to_cpup((__le32 *)tlv_data); | |
547 | break; | |
548 | case IWL_UCODE_TLV_INIT_EVTLOG_SIZE: | |
549 | if (tlv_len != sizeof(u32)) | |
550 | goto invalid_tlv_len; | |
551 | pieces->init_evtlog_size = | |
552 | le32_to_cpup((__le32 *)tlv_data); | |
553 | break; | |
554 | case IWL_UCODE_TLV_INIT_ERRLOG_PTR: | |
555 | if (tlv_len != sizeof(u32)) | |
556 | goto invalid_tlv_len; | |
557 | pieces->init_errlog_ptr = | |
558 | le32_to_cpup((__le32 *)tlv_data); | |
559 | break; | |
560 | case IWL_UCODE_TLV_RUNT_EVTLOG_PTR: | |
561 | if (tlv_len != sizeof(u32)) | |
562 | goto invalid_tlv_len; | |
563 | pieces->inst_evtlog_ptr = | |
564 | le32_to_cpup((__le32 *)tlv_data); | |
565 | break; | |
566 | case IWL_UCODE_TLV_RUNT_EVTLOG_SIZE: | |
567 | if (tlv_len != sizeof(u32)) | |
568 | goto invalid_tlv_len; | |
569 | pieces->inst_evtlog_size = | |
570 | le32_to_cpup((__le32 *)tlv_data); | |
571 | break; | |
572 | case IWL_UCODE_TLV_RUNT_ERRLOG_PTR: | |
573 | if (tlv_len != sizeof(u32)) | |
574 | goto invalid_tlv_len; | |
575 | pieces->inst_errlog_ptr = | |
576 | le32_to_cpup((__le32 *)tlv_data); | |
577 | break; | |
578 | case IWL_UCODE_TLV_ENHANCE_SENS_TBL: | |
579 | if (tlv_len) | |
580 | goto invalid_tlv_len; | |
965974a6 | 581 | drv->fw.enhance_sensitivity_table = true; |
15854ef9 JB |
582 | break; |
583 | case IWL_UCODE_TLV_WOWLAN_INST: | |
0cedacc5 DS |
584 | set_sec_data(pieces, IWL_UCODE_WOWLAN, |
585 | IWL_UCODE_SECTION_INST, tlv_data); | |
586 | set_sec_size(pieces, IWL_UCODE_WOWLAN, | |
587 | IWL_UCODE_SECTION_INST, tlv_len); | |
588 | set_sec_offset(pieces, IWL_UCODE_WOWLAN, | |
589 | IWL_UCODE_SECTION_INST, | |
590 | IWLAGN_RTC_INST_LOWER_BOUND); | |
15854ef9 JB |
591 | break; |
592 | case IWL_UCODE_TLV_WOWLAN_DATA: | |
0cedacc5 DS |
593 | set_sec_data(pieces, IWL_UCODE_WOWLAN, |
594 | IWL_UCODE_SECTION_DATA, tlv_data); | |
595 | set_sec_size(pieces, IWL_UCODE_WOWLAN, | |
596 | IWL_UCODE_SECTION_DATA, tlv_len); | |
597 | set_sec_offset(pieces, IWL_UCODE_WOWLAN, | |
598 | IWL_UCODE_SECTION_DATA, | |
599 | IWLAGN_RTC_DATA_LOWER_BOUND); | |
15854ef9 JB |
600 | break; |
601 | case IWL_UCODE_TLV_PHY_CALIBRATION_SIZE: | |
602 | if (tlv_len != sizeof(u32)) | |
603 | goto invalid_tlv_len; | |
604 | capa->standard_phy_calibration_size = | |
605 | le32_to_cpup((__le32 *)tlv_data); | |
606 | break; | |
ed8c8365 DS |
607 | case IWL_UCODE_TLV_SEC_RT: |
608 | iwl_store_ucode_sec(pieces, tlv_data, IWL_UCODE_REGULAR, | |
609 | tlv_len); | |
4db2c9ae | 610 | drv->fw.mvm_fw = true; |
ed8c8365 DS |
611 | break; |
612 | case IWL_UCODE_TLV_SEC_INIT: | |
613 | iwl_store_ucode_sec(pieces, tlv_data, IWL_UCODE_INIT, | |
614 | tlv_len); | |
4db2c9ae | 615 | drv->fw.mvm_fw = true; |
ed8c8365 DS |
616 | break; |
617 | case IWL_UCODE_TLV_SEC_WOWLAN: | |
618 | iwl_store_ucode_sec(pieces, tlv_data, IWL_UCODE_WOWLAN, | |
619 | tlv_len); | |
4db2c9ae | 620 | drv->fw.mvm_fw = true; |
ed8c8365 DS |
621 | break; |
622 | case IWL_UCODE_TLV_DEF_CALIB: | |
623 | if (tlv_len != sizeof(struct iwl_tlv_calib_data)) | |
624 | goto invalid_tlv_len; | |
625 | if (iwl_set_default_calib(drv, tlv_data)) | |
626 | goto tlv_error; | |
627 | break; | |
628 | case IWL_UCODE_TLV_PHY_SKU: | |
629 | if (tlv_len != sizeof(u32)) | |
630 | goto invalid_tlv_len; | |
631 | drv->fw.phy_config = le32_to_cpup((__le32 *)tlv_data); | |
632 | break; | |
15854ef9 | 633 | default: |
965974a6 | 634 | IWL_DEBUG_INFO(drv, "unknown TLV: %d\n", tlv_type); |
15854ef9 JB |
635 | break; |
636 | } | |
637 | } | |
638 | ||
639 | if (len) { | |
965974a6 JB |
640 | IWL_ERR(drv, "invalid TLV after parsing: %zd\n", len); |
641 | iwl_print_hex_dump(drv, IWL_DL_FW, (u8 *)data, len); | |
15854ef9 JB |
642 | return -EINVAL; |
643 | } | |
644 | ||
645 | return 0; | |
646 | ||
647 | invalid_tlv_len: | |
965974a6 | 648 | IWL_ERR(drv, "TLV %d has invalid size: %u\n", tlv_type, tlv_len); |
ed8c8365 | 649 | tlv_error: |
965974a6 | 650 | iwl_print_hex_dump(drv, IWL_DL_FW, tlv_data, tlv_len); |
15854ef9 JB |
651 | |
652 | return -EINVAL; | |
653 | } | |
654 | ||
6dfa8d01 DS |
655 | static int alloc_pci_desc(struct iwl_drv *drv, |
656 | struct iwl_firmware_pieces *pieces, | |
657 | enum iwl_ucode_type type) | |
658 | { | |
659 | int i; | |
660 | for (i = 0; | |
661 | i < IWL_UCODE_SECTION_MAX && get_sec_size(pieces, type, i); | |
662 | i++) | |
663 | if (iwl_alloc_fw_desc(drv, &(drv->fw.img[type].sec[i]), | |
664 | get_sec(pieces, type, i))) | |
665 | return -1; | |
666 | return 0; | |
667 | } | |
668 | ||
669 | static int validate_sec_sizes(struct iwl_drv *drv, | |
670 | struct iwl_firmware_pieces *pieces, | |
671 | const struct iwl_cfg *cfg) | |
672 | { | |
673 | IWL_DEBUG_INFO(drv, "f/w package hdr runtime inst size = %Zd\n", | |
674 | get_sec_size(pieces, IWL_UCODE_REGULAR, | |
675 | IWL_UCODE_SECTION_INST)); | |
676 | IWL_DEBUG_INFO(drv, "f/w package hdr runtime data size = %Zd\n", | |
677 | get_sec_size(pieces, IWL_UCODE_REGULAR, | |
678 | IWL_UCODE_SECTION_DATA)); | |
679 | IWL_DEBUG_INFO(drv, "f/w package hdr init inst size = %Zd\n", | |
680 | get_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_INST)); | |
681 | IWL_DEBUG_INFO(drv, "f/w package hdr init data size = %Zd\n", | |
682 | get_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_DATA)); | |
683 | ||
684 | /* Verify that uCode images will fit in card's SRAM. */ | |
685 | if (get_sec_size(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_INST) > | |
686 | cfg->max_inst_size) { | |
687 | IWL_ERR(drv, "uCode instr len %Zd too large to fit in\n", | |
688 | get_sec_size(pieces, IWL_UCODE_REGULAR, | |
689 | IWL_UCODE_SECTION_INST)); | |
690 | return -1; | |
691 | } | |
692 | ||
693 | if (get_sec_size(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_DATA) > | |
694 | cfg->max_data_size) { | |
695 | IWL_ERR(drv, "uCode data len %Zd too large to fit in\n", | |
696 | get_sec_size(pieces, IWL_UCODE_REGULAR, | |
697 | IWL_UCODE_SECTION_DATA)); | |
698 | return -1; | |
699 | } | |
700 | ||
701 | if (get_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_INST) > | |
702 | cfg->max_inst_size) { | |
703 | IWL_ERR(drv, "uCode init instr len %Zd too large to fit in\n", | |
704 | get_sec_size(pieces, IWL_UCODE_INIT, | |
705 | IWL_UCODE_SECTION_INST)); | |
706 | return -1; | |
707 | } | |
708 | ||
709 | if (get_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_DATA) > | |
710 | cfg->max_data_size) { | |
711 | IWL_ERR(drv, "uCode init data len %Zd too large to fit in\n", | |
712 | get_sec_size(pieces, IWL_UCODE_REGULAR, | |
713 | IWL_UCODE_SECTION_DATA)); | |
714 | return -1; | |
715 | } | |
716 | return 0; | |
717 | } | |
718 | ||
719 | ||
15854ef9 JB |
720 | /** |
721 | * iwl_ucode_callback - callback when firmware was loaded | |
722 | * | |
723 | * If loaded successfully, copies the firmware into buffers | |
724 | * for the card to fetch (via DMA). | |
725 | */ | |
726 | static void iwl_ucode_callback(const struct firmware *ucode_raw, void *context) | |
727 | { | |
965974a6 JB |
728 | struct iwl_drv *drv = context; |
729 | const struct iwl_cfg *cfg = cfg(drv); | |
730 | struct iwl_fw *fw = &drv->fw; | |
15854ef9 JB |
731 | struct iwl_ucode_header *ucode; |
732 | int err; | |
0cedacc5 | 733 | struct iwl_firmware_pieces pieces; |
15854ef9 JB |
734 | const unsigned int api_max = cfg->ucode_api_max; |
735 | unsigned int api_ok = cfg->ucode_api_ok; | |
736 | const unsigned int api_min = cfg->ucode_api_min; | |
737 | u32 api_ver; | |
6dfa8d01 | 738 | int i; |
15854ef9 JB |
739 | |
740 | fw->ucode_capa.max_probe_length = 200; | |
741 | fw->ucode_capa.standard_phy_calibration_size = | |
742 | IWL_DEFAULT_STANDARD_PHY_CALIBRATE_TBL_SIZE; | |
743 | ||
744 | if (!api_ok) | |
745 | api_ok = api_max; | |
746 | ||
747 | memset(&pieces, 0, sizeof(pieces)); | |
748 | ||
749 | if (!ucode_raw) { | |
965974a6 JB |
750 | if (drv->fw_index <= api_ok) |
751 | IWL_ERR(drv, | |
15854ef9 | 752 | "request for firmware file '%s' failed.\n", |
965974a6 | 753 | drv->firmware_name); |
15854ef9 JB |
754 | goto try_again; |
755 | } | |
756 | ||
965974a6 JB |
757 | IWL_DEBUG_INFO(drv, "Loaded firmware file '%s' (%zd bytes).\n", |
758 | drv->firmware_name, ucode_raw->size); | |
15854ef9 JB |
759 | |
760 | /* Make sure that we got at least the API version number */ | |
761 | if (ucode_raw->size < 4) { | |
965974a6 | 762 | IWL_ERR(drv, "File size way too small!\n"); |
15854ef9 JB |
763 | goto try_again; |
764 | } | |
765 | ||
766 | /* Data from ucode file: header followed by uCode images */ | |
767 | ucode = (struct iwl_ucode_header *)ucode_raw->data; | |
768 | ||
769 | if (ucode->ver) | |
965974a6 | 770 | err = iwl_parse_v1_v2_firmware(drv, ucode_raw, &pieces); |
15854ef9 | 771 | else |
965974a6 | 772 | err = iwl_parse_tlv_firmware(drv, ucode_raw, &pieces, |
15854ef9 JB |
773 | &fw->ucode_capa); |
774 | ||
775 | if (err) | |
776 | goto try_again; | |
777 | ||
965974a6 | 778 | api_ver = IWL_UCODE_API(drv->fw.ucode_ver); |
15854ef9 JB |
779 | |
780 | /* | |
781 | * api_ver should match the api version forming part of the | |
782 | * firmware filename ... but we don't check for that and only rely | |
783 | * on the API version read from firmware header from here on forward | |
784 | */ | |
785 | /* no api version check required for experimental uCode */ | |
965974a6 | 786 | if (drv->fw_index != UCODE_EXPERIMENTAL_INDEX) { |
15854ef9 | 787 | if (api_ver < api_min || api_ver > api_max) { |
965974a6 | 788 | IWL_ERR(drv, |
15854ef9 JB |
789 | "Driver unable to support your firmware API. " |
790 | "Driver supports v%u, firmware is v%u.\n", | |
791 | api_max, api_ver); | |
792 | goto try_again; | |
793 | } | |
794 | ||
795 | if (api_ver < api_ok) { | |
796 | if (api_ok != api_max) | |
965974a6 | 797 | IWL_ERR(drv, "Firmware has old API version, " |
15854ef9 JB |
798 | "expected v%u through v%u, got v%u.\n", |
799 | api_ok, api_max, api_ver); | |
800 | else | |
965974a6 | 801 | IWL_ERR(drv, "Firmware has old API version, " |
15854ef9 JB |
802 | "expected v%u, got v%u.\n", |
803 | api_max, api_ver); | |
965974a6 | 804 | IWL_ERR(drv, "New firmware can be obtained from " |
15854ef9 JB |
805 | "http://www.intellinuxwireless.org/.\n"); |
806 | } | |
807 | } | |
808 | ||
965974a6 | 809 | IWL_INFO(drv, "loaded firmware version %s", drv->fw.fw_version); |
15854ef9 | 810 | |
4db2c9ae DS |
811 | /* |
812 | * In mvm uCode there is no difference between data and instructions | |
813 | * sections. | |
814 | */ | |
815 | if (!fw->mvm_fw && validate_sec_sizes(drv, &pieces, cfg)) | |
15854ef9 | 816 | goto try_again; |
15854ef9 JB |
817 | |
818 | /* Allocate ucode buffers for card's bus-master loading ... */ | |
819 | ||
820 | /* Runtime instructions and 2 copies of data: | |
821 | * 1) unmodified from disk | |
822 | * 2) backup cache for save/restore during power-downs */ | |
6dfa8d01 DS |
823 | for (i = 0; i < IWL_UCODE_TYPE_MAX; i++) |
824 | if (alloc_pci_desc(drv, &pieces, i)) | |
15854ef9 | 825 | goto err_pci_alloc; |
15854ef9 JB |
826 | |
827 | /* Now that we can no longer fail, copy information */ | |
828 | ||
829 | /* | |
830 | * The (size - 16) / 12 formula is based on the information recorded | |
831 | * for each event, which is of mode 1 (including timestamp) for all | |
832 | * new microcodes that include this information. | |
833 | */ | |
0692fe41 | 834 | fw->init_evtlog_ptr = pieces.init_evtlog_ptr; |
15854ef9 | 835 | if (pieces.init_evtlog_size) |
0692fe41 | 836 | fw->init_evtlog_size = (pieces.init_evtlog_size - 16)/12; |
15854ef9 | 837 | else |
0692fe41 | 838 | fw->init_evtlog_size = |
15854ef9 | 839 | cfg->base_params->max_event_log_size; |
0692fe41 JB |
840 | fw->init_errlog_ptr = pieces.init_errlog_ptr; |
841 | fw->inst_evtlog_ptr = pieces.inst_evtlog_ptr; | |
15854ef9 | 842 | if (pieces.inst_evtlog_size) |
0692fe41 | 843 | fw->inst_evtlog_size = (pieces.inst_evtlog_size - 16)/12; |
15854ef9 | 844 | else |
0692fe41 | 845 | fw->inst_evtlog_size = |
15854ef9 | 846 | cfg->base_params->max_event_log_size; |
0692fe41 | 847 | fw->inst_errlog_ptr = pieces.inst_errlog_ptr; |
15854ef9 JB |
848 | |
849 | /* | |
850 | * figure out the offset of chain noise reset and gain commands | |
851 | * base on the size of standard phy calibration commands table size | |
852 | */ | |
853 | if (fw->ucode_capa.standard_phy_calibration_size > | |
854 | IWL_MAX_PHY_CALIBRATE_TBL_SIZE) | |
855 | fw->ucode_capa.standard_phy_calibration_size = | |
856 | IWL_MAX_STANDARD_PHY_CALIBRATE_TBL_SIZE; | |
857 | ||
858 | /* We have our copies now, allow OS release its copies */ | |
859 | release_firmware(ucode_raw); | |
965974a6 | 860 | complete(&drv->request_firmware_complete); |
15854ef9 | 861 | |
2152268f | 862 | drv->op_mode = iwl_dvm_ops.start(drv->trans, cfg, &drv->fw); |
15854ef9 | 863 | |
965974a6 | 864 | if (!drv->op_mode) |
15854ef9 JB |
865 | goto out_unbind; |
866 | ||
867 | return; | |
868 | ||
869 | try_again: | |
870 | /* try next, if any */ | |
871 | release_firmware(ucode_raw); | |
965974a6 | 872 | if (iwl_request_firmware(drv, false)) |
15854ef9 JB |
873 | goto out_unbind; |
874 | return; | |
875 | ||
876 | err_pci_alloc: | |
965974a6 JB |
877 | IWL_ERR(drv, "failed to allocate pci memory\n"); |
878 | iwl_dealloc_ucode(drv); | |
15854ef9 JB |
879 | release_firmware(ucode_raw); |
880 | out_unbind: | |
965974a6 JB |
881 | complete(&drv->request_firmware_complete); |
882 | device_release_driver(trans(drv)->dev); | |
15854ef9 JB |
883 | } |
884 | ||
9130bab1 EG |
885 | struct iwl_drv *iwl_drv_start(struct iwl_shared *shrd, |
886 | struct iwl_trans *trans, | |
887 | const struct iwl_cfg *cfg) | |
5c58edc6 | 888 | { |
965974a6 | 889 | struct iwl_drv *drv; |
5c58edc6 EG |
890 | int ret; |
891 | ||
892 | shrd->cfg = cfg; | |
893 | ||
965974a6 JB |
894 | drv = kzalloc(sizeof(*drv), GFP_KERNEL); |
895 | if (!drv) { | |
896 | dev_printk(KERN_ERR, trans->dev, "Couldn't allocate iwl_drv"); | |
9130bab1 | 897 | return NULL; |
5c58edc6 | 898 | } |
9130bab1 | 899 | /* For printing only - temporary until we change the logger */ |
965974a6 | 900 | drv->shrd = shrd; |
9130bab1 | 901 | drv->trans = trans; |
5c58edc6 | 902 | |
965974a6 | 903 | init_completion(&drv->request_firmware_complete); |
5c58edc6 | 904 | |
965974a6 | 905 | ret = iwl_request_firmware(drv, true); |
5c58edc6 EG |
906 | |
907 | if (ret) { | |
908 | dev_printk(KERN_ERR, trans->dev, "Couldn't request the fw"); | |
965974a6 | 909 | kfree(drv); |
9130bab1 | 910 | drv = NULL; |
5c58edc6 EG |
911 | } |
912 | ||
9130bab1 | 913 | return drv; |
5c58edc6 EG |
914 | } |
915 | ||
9130bab1 | 916 | void iwl_drv_stop(struct iwl_drv *drv) |
07590f08 | 917 | { |
965974a6 | 918 | wait_for_completion(&drv->request_firmware_complete); |
2e7eb117 | 919 | |
d0f76d68 | 920 | /* op_mode can be NULL if its start failed */ |
965974a6 JB |
921 | if (drv->op_mode) |
922 | iwl_op_mode_stop(drv->op_mode); | |
07590f08 | 923 | |
965974a6 | 924 | iwl_dealloc_ucode(drv); |
7db5b989 | 925 | |
965974a6 | 926 | kfree(drv); |
07590f08 | 927 | } |