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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" | |
70 | #include "iwl-wifi.h" | |
15854ef9 | 71 | #include "iwl-shared.h" |
d0f76d68 | 72 | #include "iwl-op-mode.h" |
5c58edc6 | 73 | |
0692fe41 JB |
74 | /* private includes */ |
75 | #include "iwl-ucode.h" | |
76 | ||
15854ef9 JB |
77 | static void iwl_free_fw_desc(struct iwl_nic *nic, struct fw_desc *desc) |
78 | { | |
79 | if (desc->v_addr) | |
80 | dma_free_coherent(trans(nic)->dev, desc->len, | |
81 | desc->v_addr, desc->p_addr); | |
82 | desc->v_addr = NULL; | |
83 | desc->len = 0; | |
84 | } | |
85 | ||
86 | static void iwl_free_fw_img(struct iwl_nic *nic, struct fw_img *img) | |
87 | { | |
88 | iwl_free_fw_desc(nic, &img->code); | |
89 | iwl_free_fw_desc(nic, &img->data); | |
90 | } | |
91 | ||
92 | static void iwl_dealloc_ucode(struct iwl_nic *nic) | |
93 | { | |
94 | iwl_free_fw_img(nic, &nic->fw.ucode_rt); | |
95 | iwl_free_fw_img(nic, &nic->fw.ucode_init); | |
96 | iwl_free_fw_img(nic, &nic->fw.ucode_wowlan); | |
97 | } | |
98 | ||
99 | static int iwl_alloc_fw_desc(struct iwl_nic *nic, struct fw_desc *desc, | |
100 | const void *data, size_t len) | |
101 | { | |
102 | if (!len) { | |
103 | desc->v_addr = NULL; | |
104 | return -EINVAL; | |
105 | } | |
106 | ||
107 | desc->v_addr = dma_alloc_coherent(trans(nic)->dev, len, | |
108 | &desc->p_addr, GFP_KERNEL); | |
109 | if (!desc->v_addr) | |
110 | return -ENOMEM; | |
111 | ||
112 | desc->len = len; | |
113 | memcpy(desc->v_addr, data, len); | |
114 | return 0; | |
115 | } | |
116 | ||
117 | static void iwl_ucode_callback(const struct firmware *ucode_raw, void *context); | |
118 | ||
119 | #define UCODE_EXPERIMENTAL_INDEX 100 | |
120 | #define UCODE_EXPERIMENTAL_TAG "exp" | |
121 | ||
122 | static int iwl_request_firmware(struct iwl_nic *nic, bool first) | |
123 | { | |
124 | const struct iwl_cfg *cfg = cfg(nic); | |
125 | const char *name_pre = cfg->fw_name_pre; | |
126 | char tag[8]; | |
127 | ||
128 | if (first) { | |
129 | #ifdef CONFIG_IWLWIFI_DEBUG_EXPERIMENTAL_UCODE | |
130 | nic->fw_index = UCODE_EXPERIMENTAL_INDEX; | |
131 | strcpy(tag, UCODE_EXPERIMENTAL_TAG); | |
132 | } else if (nic->fw_index == UCODE_EXPERIMENTAL_INDEX) { | |
133 | #endif | |
134 | nic->fw_index = cfg->ucode_api_max; | |
135 | sprintf(tag, "%d", nic->fw_index); | |
136 | } else { | |
137 | nic->fw_index--; | |
138 | sprintf(tag, "%d", nic->fw_index); | |
139 | } | |
140 | ||
141 | if (nic->fw_index < cfg->ucode_api_min) { | |
142 | IWL_ERR(nic, "no suitable firmware found!\n"); | |
143 | return -ENOENT; | |
144 | } | |
145 | ||
146 | sprintf(nic->firmware_name, "%s%s%s", name_pre, tag, ".ucode"); | |
147 | ||
148 | IWL_DEBUG_INFO(nic, "attempting to load firmware %s'%s'\n", | |
149 | (nic->fw_index == UCODE_EXPERIMENTAL_INDEX) | |
150 | ? "EXPERIMENTAL " : "", | |
151 | nic->firmware_name); | |
152 | ||
153 | return request_firmware_nowait(THIS_MODULE, 1, nic->firmware_name, | |
154 | trans(nic)->dev, | |
155 | GFP_KERNEL, nic, iwl_ucode_callback); | |
156 | } | |
157 | ||
158 | struct iwlagn_firmware_pieces { | |
159 | const void *inst, *data, *init, *init_data, *wowlan_inst, *wowlan_data; | |
160 | size_t inst_size, data_size, init_size, init_data_size, | |
161 | wowlan_inst_size, wowlan_data_size; | |
162 | ||
163 | u32 init_evtlog_ptr, init_evtlog_size, init_errlog_ptr; | |
164 | u32 inst_evtlog_ptr, inst_evtlog_size, inst_errlog_ptr; | |
165 | }; | |
166 | ||
167 | static int iwl_parse_v1_v2_firmware(struct iwl_nic *nic, | |
168 | const struct firmware *ucode_raw, | |
169 | struct iwlagn_firmware_pieces *pieces) | |
170 | { | |
171 | struct iwl_ucode_header *ucode = (void *)ucode_raw->data; | |
172 | u32 api_ver, hdr_size, build; | |
173 | char buildstr[25]; | |
174 | const u8 *src; | |
175 | ||
176 | nic->fw.ucode_ver = le32_to_cpu(ucode->ver); | |
177 | api_ver = IWL_UCODE_API(nic->fw.ucode_ver); | |
178 | ||
179 | switch (api_ver) { | |
180 | default: | |
181 | hdr_size = 28; | |
182 | if (ucode_raw->size < hdr_size) { | |
183 | IWL_ERR(nic, "File size too small!\n"); | |
184 | return -EINVAL; | |
185 | } | |
186 | build = le32_to_cpu(ucode->u.v2.build); | |
187 | pieces->inst_size = le32_to_cpu(ucode->u.v2.inst_size); | |
188 | pieces->data_size = le32_to_cpu(ucode->u.v2.data_size); | |
189 | pieces->init_size = le32_to_cpu(ucode->u.v2.init_size); | |
190 | pieces->init_data_size = | |
191 | le32_to_cpu(ucode->u.v2.init_data_size); | |
192 | src = ucode->u.v2.data; | |
193 | break; | |
194 | case 0: | |
195 | case 1: | |
196 | case 2: | |
197 | hdr_size = 24; | |
198 | if (ucode_raw->size < hdr_size) { | |
199 | IWL_ERR(nic, "File size too small!\n"); | |
200 | return -EINVAL; | |
201 | } | |
202 | build = 0; | |
203 | pieces->inst_size = le32_to_cpu(ucode->u.v1.inst_size); | |
204 | pieces->data_size = le32_to_cpu(ucode->u.v1.data_size); | |
205 | pieces->init_size = le32_to_cpu(ucode->u.v1.init_size); | |
206 | pieces->init_data_size = | |
207 | le32_to_cpu(ucode->u.v1.init_data_size); | |
208 | src = ucode->u.v1.data; | |
209 | break; | |
210 | } | |
211 | ||
212 | if (build) | |
213 | sprintf(buildstr, " build %u%s", build, | |
214 | (nic->fw_index == UCODE_EXPERIMENTAL_INDEX) | |
215 | ? " (EXP)" : ""); | |
216 | else | |
217 | buildstr[0] = '\0'; | |
218 | ||
219 | snprintf(nic->fw.fw_version, | |
220 | sizeof(nic->fw.fw_version), | |
221 | "%u.%u.%u.%u%s", | |
222 | IWL_UCODE_MAJOR(nic->fw.ucode_ver), | |
223 | IWL_UCODE_MINOR(nic->fw.ucode_ver), | |
224 | IWL_UCODE_API(nic->fw.ucode_ver), | |
225 | IWL_UCODE_SERIAL(nic->fw.ucode_ver), | |
226 | buildstr); | |
227 | ||
228 | /* Verify size of file vs. image size info in file's header */ | |
229 | if (ucode_raw->size != hdr_size + pieces->inst_size + | |
230 | pieces->data_size + pieces->init_size + | |
231 | pieces->init_data_size) { | |
232 | ||
233 | IWL_ERR(nic, | |
234 | "uCode file size %d does not match expected size\n", | |
235 | (int)ucode_raw->size); | |
236 | return -EINVAL; | |
237 | } | |
238 | ||
239 | pieces->inst = src; | |
240 | src += pieces->inst_size; | |
241 | pieces->data = src; | |
242 | src += pieces->data_size; | |
243 | pieces->init = src; | |
244 | src += pieces->init_size; | |
245 | pieces->init_data = src; | |
246 | src += pieces->init_data_size; | |
247 | ||
248 | return 0; | |
249 | } | |
250 | ||
251 | static int iwl_parse_tlv_firmware(struct iwl_nic *nic, | |
252 | const struct firmware *ucode_raw, | |
253 | struct iwlagn_firmware_pieces *pieces, | |
254 | struct iwl_ucode_capabilities *capa) | |
255 | { | |
256 | struct iwl_tlv_ucode_header *ucode = (void *)ucode_raw->data; | |
257 | struct iwl_ucode_tlv *tlv; | |
258 | size_t len = ucode_raw->size; | |
259 | const u8 *data; | |
260 | int wanted_alternative = iwlagn_mod_params.wanted_ucode_alternative; | |
261 | int tmp; | |
262 | u64 alternatives; | |
263 | u32 tlv_len; | |
264 | enum iwl_ucode_tlv_type tlv_type; | |
265 | const u8 *tlv_data; | |
266 | char buildstr[25]; | |
267 | u32 build; | |
268 | ||
269 | if (len < sizeof(*ucode)) { | |
270 | IWL_ERR(nic, "uCode has invalid length: %zd\n", len); | |
271 | return -EINVAL; | |
272 | } | |
273 | ||
274 | if (ucode->magic != cpu_to_le32(IWL_TLV_UCODE_MAGIC)) { | |
275 | IWL_ERR(nic, "invalid uCode magic: 0X%x\n", | |
276 | le32_to_cpu(ucode->magic)); | |
277 | return -EINVAL; | |
278 | } | |
279 | ||
280 | /* | |
281 | * Check which alternatives are present, and "downgrade" | |
282 | * when the chosen alternative is not present, warning | |
283 | * the user when that happens. Some files may not have | |
284 | * any alternatives, so don't warn in that case. | |
285 | */ | |
286 | alternatives = le64_to_cpu(ucode->alternatives); | |
287 | tmp = wanted_alternative; | |
288 | if (wanted_alternative > 63) | |
289 | wanted_alternative = 63; | |
290 | while (wanted_alternative && !(alternatives & BIT(wanted_alternative))) | |
291 | wanted_alternative--; | |
292 | if (wanted_alternative && wanted_alternative != tmp) | |
293 | IWL_WARN(nic, | |
294 | "uCode alternative %d not available, choosing %d\n", | |
295 | tmp, wanted_alternative); | |
296 | ||
297 | nic->fw.ucode_ver = le32_to_cpu(ucode->ver); | |
298 | build = le32_to_cpu(ucode->build); | |
299 | ||
300 | if (build) | |
301 | sprintf(buildstr, " build %u%s", build, | |
302 | (nic->fw_index == UCODE_EXPERIMENTAL_INDEX) | |
303 | ? " (EXP)" : ""); | |
304 | else | |
305 | buildstr[0] = '\0'; | |
306 | ||
307 | snprintf(nic->fw.fw_version, | |
308 | sizeof(nic->fw.fw_version), | |
309 | "%u.%u.%u.%u%s", | |
310 | IWL_UCODE_MAJOR(nic->fw.ucode_ver), | |
311 | IWL_UCODE_MINOR(nic->fw.ucode_ver), | |
312 | IWL_UCODE_API(nic->fw.ucode_ver), | |
313 | IWL_UCODE_SERIAL(nic->fw.ucode_ver), | |
314 | buildstr); | |
315 | ||
316 | data = ucode->data; | |
317 | ||
318 | len -= sizeof(*ucode); | |
319 | ||
320 | while (len >= sizeof(*tlv)) { | |
321 | u16 tlv_alt; | |
322 | ||
323 | len -= sizeof(*tlv); | |
324 | tlv = (void *)data; | |
325 | ||
326 | tlv_len = le32_to_cpu(tlv->length); | |
327 | tlv_type = le16_to_cpu(tlv->type); | |
328 | tlv_alt = le16_to_cpu(tlv->alternative); | |
329 | tlv_data = tlv->data; | |
330 | ||
331 | if (len < tlv_len) { | |
332 | IWL_ERR(nic, "invalid TLV len: %zd/%u\n", | |
333 | len, tlv_len); | |
334 | return -EINVAL; | |
335 | } | |
336 | len -= ALIGN(tlv_len, 4); | |
337 | data += sizeof(*tlv) + ALIGN(tlv_len, 4); | |
338 | ||
339 | /* | |
340 | * Alternative 0 is always valid. | |
341 | * | |
342 | * Skip alternative TLVs that are not selected. | |
343 | */ | |
344 | if (tlv_alt != 0 && tlv_alt != wanted_alternative) | |
345 | continue; | |
346 | ||
347 | switch (tlv_type) { | |
348 | case IWL_UCODE_TLV_INST: | |
349 | pieces->inst = tlv_data; | |
350 | pieces->inst_size = tlv_len; | |
351 | break; | |
352 | case IWL_UCODE_TLV_DATA: | |
353 | pieces->data = tlv_data; | |
354 | pieces->data_size = tlv_len; | |
355 | break; | |
356 | case IWL_UCODE_TLV_INIT: | |
357 | pieces->init = tlv_data; | |
358 | pieces->init_size = tlv_len; | |
359 | break; | |
360 | case IWL_UCODE_TLV_INIT_DATA: | |
361 | pieces->init_data = tlv_data; | |
362 | pieces->init_data_size = tlv_len; | |
363 | break; | |
364 | case IWL_UCODE_TLV_BOOT: | |
365 | IWL_ERR(nic, "Found unexpected BOOT ucode\n"); | |
366 | break; | |
367 | case IWL_UCODE_TLV_PROBE_MAX_LEN: | |
368 | if (tlv_len != sizeof(u32)) | |
369 | goto invalid_tlv_len; | |
370 | capa->max_probe_length = | |
371 | le32_to_cpup((__le32 *)tlv_data); | |
372 | break; | |
373 | case IWL_UCODE_TLV_PAN: | |
374 | if (tlv_len) | |
375 | goto invalid_tlv_len; | |
376 | capa->flags |= IWL_UCODE_TLV_FLAGS_PAN; | |
377 | break; | |
378 | case IWL_UCODE_TLV_FLAGS: | |
379 | /* must be at least one u32 */ | |
380 | if (tlv_len < sizeof(u32)) | |
381 | goto invalid_tlv_len; | |
382 | /* and a proper number of u32s */ | |
383 | if (tlv_len % sizeof(u32)) | |
384 | goto invalid_tlv_len; | |
385 | /* | |
386 | * This driver only reads the first u32 as | |
387 | * right now no more features are defined, | |
388 | * if that changes then either the driver | |
389 | * will not work with the new firmware, or | |
390 | * it'll not take advantage of new features. | |
391 | */ | |
392 | capa->flags = le32_to_cpup((__le32 *)tlv_data); | |
393 | break; | |
394 | case IWL_UCODE_TLV_INIT_EVTLOG_PTR: | |
395 | if (tlv_len != sizeof(u32)) | |
396 | goto invalid_tlv_len; | |
397 | pieces->init_evtlog_ptr = | |
398 | le32_to_cpup((__le32 *)tlv_data); | |
399 | break; | |
400 | case IWL_UCODE_TLV_INIT_EVTLOG_SIZE: | |
401 | if (tlv_len != sizeof(u32)) | |
402 | goto invalid_tlv_len; | |
403 | pieces->init_evtlog_size = | |
404 | le32_to_cpup((__le32 *)tlv_data); | |
405 | break; | |
406 | case IWL_UCODE_TLV_INIT_ERRLOG_PTR: | |
407 | if (tlv_len != sizeof(u32)) | |
408 | goto invalid_tlv_len; | |
409 | pieces->init_errlog_ptr = | |
410 | le32_to_cpup((__le32 *)tlv_data); | |
411 | break; | |
412 | case IWL_UCODE_TLV_RUNT_EVTLOG_PTR: | |
413 | if (tlv_len != sizeof(u32)) | |
414 | goto invalid_tlv_len; | |
415 | pieces->inst_evtlog_ptr = | |
416 | le32_to_cpup((__le32 *)tlv_data); | |
417 | break; | |
418 | case IWL_UCODE_TLV_RUNT_EVTLOG_SIZE: | |
419 | if (tlv_len != sizeof(u32)) | |
420 | goto invalid_tlv_len; | |
421 | pieces->inst_evtlog_size = | |
422 | le32_to_cpup((__le32 *)tlv_data); | |
423 | break; | |
424 | case IWL_UCODE_TLV_RUNT_ERRLOG_PTR: | |
425 | if (tlv_len != sizeof(u32)) | |
426 | goto invalid_tlv_len; | |
427 | pieces->inst_errlog_ptr = | |
428 | le32_to_cpup((__le32 *)tlv_data); | |
429 | break; | |
430 | case IWL_UCODE_TLV_ENHANCE_SENS_TBL: | |
431 | if (tlv_len) | |
432 | goto invalid_tlv_len; | |
433 | nic->fw.enhance_sensitivity_table = true; | |
434 | break; | |
435 | case IWL_UCODE_TLV_WOWLAN_INST: | |
436 | pieces->wowlan_inst = tlv_data; | |
437 | pieces->wowlan_inst_size = tlv_len; | |
438 | break; | |
439 | case IWL_UCODE_TLV_WOWLAN_DATA: | |
440 | pieces->wowlan_data = tlv_data; | |
441 | pieces->wowlan_data_size = tlv_len; | |
442 | break; | |
443 | case IWL_UCODE_TLV_PHY_CALIBRATION_SIZE: | |
444 | if (tlv_len != sizeof(u32)) | |
445 | goto invalid_tlv_len; | |
446 | capa->standard_phy_calibration_size = | |
447 | le32_to_cpup((__le32 *)tlv_data); | |
448 | break; | |
449 | default: | |
450 | IWL_DEBUG_INFO(nic, "unknown TLV: %d\n", tlv_type); | |
451 | break; | |
452 | } | |
453 | } | |
454 | ||
455 | if (len) { | |
456 | IWL_ERR(nic, "invalid TLV after parsing: %zd\n", len); | |
457 | iwl_print_hex_dump(nic, IWL_DL_FW, (u8 *)data, len); | |
458 | return -EINVAL; | |
459 | } | |
460 | ||
461 | return 0; | |
462 | ||
463 | invalid_tlv_len: | |
464 | IWL_ERR(nic, "TLV %d has invalid size: %u\n", tlv_type, tlv_len); | |
465 | iwl_print_hex_dump(nic, IWL_DL_FW, tlv_data, tlv_len); | |
466 | ||
467 | return -EINVAL; | |
468 | } | |
469 | ||
470 | /** | |
471 | * iwl_ucode_callback - callback when firmware was loaded | |
472 | * | |
473 | * If loaded successfully, copies the firmware into buffers | |
474 | * for the card to fetch (via DMA). | |
475 | */ | |
476 | static void iwl_ucode_callback(const struct firmware *ucode_raw, void *context) | |
477 | { | |
478 | struct iwl_nic *nic = context; | |
479 | const struct iwl_cfg *cfg = cfg(nic); | |
480 | struct iwl_fw *fw = &nic->fw; | |
481 | struct iwl_ucode_header *ucode; | |
482 | int err; | |
483 | struct iwlagn_firmware_pieces pieces; | |
484 | const unsigned int api_max = cfg->ucode_api_max; | |
485 | unsigned int api_ok = cfg->ucode_api_ok; | |
486 | const unsigned int api_min = cfg->ucode_api_min; | |
487 | u32 api_ver; | |
488 | ||
489 | fw->ucode_capa.max_probe_length = 200; | |
490 | fw->ucode_capa.standard_phy_calibration_size = | |
491 | IWL_DEFAULT_STANDARD_PHY_CALIBRATE_TBL_SIZE; | |
492 | ||
493 | if (!api_ok) | |
494 | api_ok = api_max; | |
495 | ||
496 | memset(&pieces, 0, sizeof(pieces)); | |
497 | ||
498 | if (!ucode_raw) { | |
499 | if (nic->fw_index <= api_ok) | |
500 | IWL_ERR(nic, | |
501 | "request for firmware file '%s' failed.\n", | |
502 | nic->firmware_name); | |
503 | goto try_again; | |
504 | } | |
505 | ||
506 | IWL_DEBUG_INFO(nic, "Loaded firmware file '%s' (%zd bytes).\n", | |
507 | nic->firmware_name, ucode_raw->size); | |
508 | ||
509 | /* Make sure that we got at least the API version number */ | |
510 | if (ucode_raw->size < 4) { | |
511 | IWL_ERR(nic, "File size way too small!\n"); | |
512 | goto try_again; | |
513 | } | |
514 | ||
515 | /* Data from ucode file: header followed by uCode images */ | |
516 | ucode = (struct iwl_ucode_header *)ucode_raw->data; | |
517 | ||
518 | if (ucode->ver) | |
519 | err = iwl_parse_v1_v2_firmware(nic, ucode_raw, &pieces); | |
520 | else | |
521 | err = iwl_parse_tlv_firmware(nic, ucode_raw, &pieces, | |
522 | &fw->ucode_capa); | |
523 | ||
524 | if (err) | |
525 | goto try_again; | |
526 | ||
527 | api_ver = IWL_UCODE_API(nic->fw.ucode_ver); | |
528 | ||
529 | /* | |
530 | * api_ver should match the api version forming part of the | |
531 | * firmware filename ... but we don't check for that and only rely | |
532 | * on the API version read from firmware header from here on forward | |
533 | */ | |
534 | /* no api version check required for experimental uCode */ | |
535 | if (nic->fw_index != UCODE_EXPERIMENTAL_INDEX) { | |
536 | if (api_ver < api_min || api_ver > api_max) { | |
537 | IWL_ERR(nic, | |
538 | "Driver unable to support your firmware API. " | |
539 | "Driver supports v%u, firmware is v%u.\n", | |
540 | api_max, api_ver); | |
541 | goto try_again; | |
542 | } | |
543 | ||
544 | if (api_ver < api_ok) { | |
545 | if (api_ok != api_max) | |
546 | IWL_ERR(nic, "Firmware has old API version, " | |
547 | "expected v%u through v%u, got v%u.\n", | |
548 | api_ok, api_max, api_ver); | |
549 | else | |
550 | IWL_ERR(nic, "Firmware has old API version, " | |
551 | "expected v%u, got v%u.\n", | |
552 | api_max, api_ver); | |
553 | IWL_ERR(nic, "New firmware can be obtained from " | |
554 | "http://www.intellinuxwireless.org/.\n"); | |
555 | } | |
556 | } | |
557 | ||
558 | IWL_INFO(nic, "loaded firmware version %s", nic->fw.fw_version); | |
559 | ||
560 | /* | |
561 | * For any of the failures below (before allocating pci memory) | |
562 | * we will try to load a version with a smaller API -- maybe the | |
563 | * user just got a corrupted version of the latest API. | |
564 | */ | |
565 | ||
566 | IWL_DEBUG_INFO(nic, "f/w package hdr ucode version raw = 0x%x\n", | |
567 | nic->fw.ucode_ver); | |
568 | IWL_DEBUG_INFO(nic, "f/w package hdr runtime inst size = %Zd\n", | |
569 | pieces.inst_size); | |
570 | IWL_DEBUG_INFO(nic, "f/w package hdr runtime data size = %Zd\n", | |
571 | pieces.data_size); | |
572 | IWL_DEBUG_INFO(nic, "f/w package hdr init inst size = %Zd\n", | |
573 | pieces.init_size); | |
574 | IWL_DEBUG_INFO(nic, "f/w package hdr init data size = %Zd\n", | |
575 | pieces.init_data_size); | |
576 | ||
577 | /* Verify that uCode images will fit in card's SRAM */ | |
578 | if (pieces.inst_size > cfg->max_inst_size) { | |
579 | IWL_ERR(nic, "uCode instr len %Zd too large to fit in\n", | |
580 | pieces.inst_size); | |
581 | goto try_again; | |
582 | } | |
583 | ||
584 | if (pieces.data_size > cfg->max_data_size) { | |
585 | IWL_ERR(nic, "uCode data len %Zd too large to fit in\n", | |
586 | pieces.data_size); | |
587 | goto try_again; | |
588 | } | |
589 | ||
590 | if (pieces.init_size > cfg->max_inst_size) { | |
591 | IWL_ERR(nic, "uCode init instr len %Zd too large to fit in\n", | |
592 | pieces.init_size); | |
593 | goto try_again; | |
594 | } | |
595 | ||
596 | if (pieces.init_data_size > cfg->max_data_size) { | |
597 | IWL_ERR(nic, "uCode init data len %Zd too large to fit in\n", | |
598 | pieces.init_data_size); | |
599 | goto try_again; | |
600 | } | |
601 | ||
602 | /* Allocate ucode buffers for card's bus-master loading ... */ | |
603 | ||
604 | /* Runtime instructions and 2 copies of data: | |
605 | * 1) unmodified from disk | |
606 | * 2) backup cache for save/restore during power-downs */ | |
607 | if (iwl_alloc_fw_desc(nic, &nic->fw.ucode_rt.code, | |
608 | pieces.inst, pieces.inst_size)) | |
609 | goto err_pci_alloc; | |
610 | if (iwl_alloc_fw_desc(nic, &nic->fw.ucode_rt.data, | |
611 | pieces.data, pieces.data_size)) | |
612 | goto err_pci_alloc; | |
613 | ||
614 | /* Initialization instructions and data */ | |
615 | if (pieces.init_size && pieces.init_data_size) { | |
616 | if (iwl_alloc_fw_desc(nic, | |
617 | &nic->fw.ucode_init.code, | |
618 | pieces.init, pieces.init_size)) | |
619 | goto err_pci_alloc; | |
620 | if (iwl_alloc_fw_desc(nic, | |
621 | &nic->fw.ucode_init.data, | |
622 | pieces.init_data, pieces.init_data_size)) | |
623 | goto err_pci_alloc; | |
624 | } | |
625 | ||
626 | /* WoWLAN instructions and data */ | |
627 | if (pieces.wowlan_inst_size && pieces.wowlan_data_size) { | |
628 | if (iwl_alloc_fw_desc(nic, | |
629 | &nic->fw.ucode_wowlan.code, | |
630 | pieces.wowlan_inst, | |
631 | pieces.wowlan_inst_size)) | |
632 | goto err_pci_alloc; | |
633 | if (iwl_alloc_fw_desc(nic, | |
634 | &nic->fw.ucode_wowlan.data, | |
635 | pieces.wowlan_data, | |
636 | pieces.wowlan_data_size)) | |
637 | goto err_pci_alloc; | |
638 | } | |
639 | ||
640 | /* Now that we can no longer fail, copy information */ | |
641 | ||
642 | /* | |
643 | * The (size - 16) / 12 formula is based on the information recorded | |
644 | * for each event, which is of mode 1 (including timestamp) for all | |
645 | * new microcodes that include this information. | |
646 | */ | |
0692fe41 | 647 | fw->init_evtlog_ptr = pieces.init_evtlog_ptr; |
15854ef9 | 648 | if (pieces.init_evtlog_size) |
0692fe41 | 649 | fw->init_evtlog_size = (pieces.init_evtlog_size - 16)/12; |
15854ef9 | 650 | else |
0692fe41 | 651 | fw->init_evtlog_size = |
15854ef9 | 652 | cfg->base_params->max_event_log_size; |
0692fe41 JB |
653 | fw->init_errlog_ptr = pieces.init_errlog_ptr; |
654 | fw->inst_evtlog_ptr = pieces.inst_evtlog_ptr; | |
15854ef9 | 655 | if (pieces.inst_evtlog_size) |
0692fe41 | 656 | fw->inst_evtlog_size = (pieces.inst_evtlog_size - 16)/12; |
15854ef9 | 657 | else |
0692fe41 | 658 | fw->inst_evtlog_size = |
15854ef9 | 659 | cfg->base_params->max_event_log_size; |
0692fe41 | 660 | fw->inst_errlog_ptr = pieces.inst_errlog_ptr; |
15854ef9 JB |
661 | |
662 | /* | |
663 | * figure out the offset of chain noise reset and gain commands | |
664 | * base on the size of standard phy calibration commands table size | |
665 | */ | |
666 | if (fw->ucode_capa.standard_phy_calibration_size > | |
667 | IWL_MAX_PHY_CALIBRATE_TBL_SIZE) | |
668 | fw->ucode_capa.standard_phy_calibration_size = | |
669 | IWL_MAX_STANDARD_PHY_CALIBRATE_TBL_SIZE; | |
670 | ||
671 | /* We have our copies now, allow OS release its copies */ | |
672 | release_firmware(ucode_raw); | |
673 | complete(&nic->request_firmware_complete); | |
674 | ||
0692fe41 | 675 | nic->op_mode = iwl_dvm_ops.start(nic->shrd->trans, &nic->fw); |
15854ef9 JB |
676 | |
677 | if (!nic->op_mode) | |
678 | goto out_unbind; | |
679 | ||
680 | return; | |
681 | ||
682 | try_again: | |
683 | /* try next, if any */ | |
684 | release_firmware(ucode_raw); | |
685 | if (iwl_request_firmware(nic, false)) | |
686 | goto out_unbind; | |
687 | return; | |
688 | ||
689 | err_pci_alloc: | |
690 | IWL_ERR(nic, "failed to allocate pci memory\n"); | |
691 | iwl_dealloc_ucode(nic); | |
692 | release_firmware(ucode_raw); | |
693 | out_unbind: | |
694 | complete(&nic->request_firmware_complete); | |
695 | device_release_driver(trans(nic)->dev); | |
696 | } | |
697 | ||
5c58edc6 | 698 | int iwl_drv_start(struct iwl_shared *shrd, |
706c4ff6 | 699 | struct iwl_trans *trans, const struct iwl_cfg *cfg) |
5c58edc6 | 700 | { |
0692fe41 | 701 | struct iwl_nic *nic; |
5c58edc6 EG |
702 | int ret; |
703 | ||
704 | shrd->cfg = cfg; | |
705 | ||
0692fe41 JB |
706 | nic = kzalloc(sizeof(*nic), GFP_KERNEL); |
707 | if (!nic) { | |
5c58edc6 EG |
708 | dev_printk(KERN_ERR, trans->dev, "Couldn't allocate iwl_nic"); |
709 | return -ENOMEM; | |
710 | } | |
0692fe41 JB |
711 | nic->shrd = shrd; |
712 | shrd->nic = nic; | |
5c58edc6 | 713 | |
0692fe41 | 714 | init_completion(&nic->request_firmware_complete); |
5c58edc6 | 715 | |
0692fe41 | 716 | ret = iwl_request_firmware(nic, true); |
5c58edc6 EG |
717 | |
718 | if (ret) { | |
719 | dev_printk(KERN_ERR, trans->dev, "Couldn't request the fw"); | |
0692fe41 JB |
720 | kfree(nic); |
721 | shrd->nic = NULL; | |
5c58edc6 EG |
722 | } |
723 | ||
724 | return ret; | |
725 | } | |
726 | ||
07590f08 EG |
727 | void iwl_drv_stop(struct iwl_shared *shrd) |
728 | { | |
0692fe41 JB |
729 | struct iwl_nic *nic = shrd->nic; |
730 | ||
731 | wait_for_completion(&nic->request_firmware_complete); | |
2e7eb117 | 732 | |
d0f76d68 | 733 | /* op_mode can be NULL if its start failed */ |
0692fe41 JB |
734 | if (nic->op_mode) |
735 | iwl_op_mode_stop(nic->op_mode); | |
07590f08 | 736 | |
0692fe41 | 737 | iwl_dealloc_ucode(nic); |
7db5b989 | 738 | |
0692fe41 JB |
739 | kfree(nic); |
740 | shrd->nic = NULL; | |
07590f08 | 741 | } |