Emmanuel Grumbach | 5c58edc | 2012-02-07 14:18:40 +0200 | [diff] [blame] | 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> |
Johannes Berg | 15854ef | 2012-03-05 11:24:50 -0800 | [diff] [blame] | 64 | #include <linux/dma-mapping.h> |
| 65 | #include <linux/firmware.h> |
| 66 | #include <linux/module.h> |
Emmanuel Grumbach | 5c58edc | 2012-02-07 14:18:40 +0200 | [diff] [blame] | 67 | |
| 68 | #include "iwl-drv.h" |
| 69 | #include "iwl-trans.h" |
| 70 | #include "iwl-wifi.h" |
Johannes Berg | 15854ef | 2012-03-05 11:24:50 -0800 | [diff] [blame] | 71 | #include "iwl-shared.h" |
Emmanuel Grumbach | d0f76d6 | 2012-02-09 16:08:15 +0200 | [diff] [blame] | 72 | #include "iwl-op-mode.h" |
Emmanuel Grumbach | 5c58edc | 2012-02-07 14:18:40 +0200 | [diff] [blame] | 73 | |
Johannes Berg | 0692fe4 | 2012-03-06 13:30:37 -0800 | [diff] [blame^] | 74 | /* private includes */ |
| 75 | #include "iwl-ucode.h" |
| 76 | |
Johannes Berg | 15854ef | 2012-03-05 11:24:50 -0800 | [diff] [blame] | 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 | */ |
Johannes Berg | 0692fe4 | 2012-03-06 13:30:37 -0800 | [diff] [blame^] | 647 | fw->init_evtlog_ptr = pieces.init_evtlog_ptr; |
Johannes Berg | 15854ef | 2012-03-05 11:24:50 -0800 | [diff] [blame] | 648 | if (pieces.init_evtlog_size) |
Johannes Berg | 0692fe4 | 2012-03-06 13:30:37 -0800 | [diff] [blame^] | 649 | fw->init_evtlog_size = (pieces.init_evtlog_size - 16)/12; |
Johannes Berg | 15854ef | 2012-03-05 11:24:50 -0800 | [diff] [blame] | 650 | else |
Johannes Berg | 0692fe4 | 2012-03-06 13:30:37 -0800 | [diff] [blame^] | 651 | fw->init_evtlog_size = |
Johannes Berg | 15854ef | 2012-03-05 11:24:50 -0800 | [diff] [blame] | 652 | cfg->base_params->max_event_log_size; |
Johannes Berg | 0692fe4 | 2012-03-06 13:30:37 -0800 | [diff] [blame^] | 653 | fw->init_errlog_ptr = pieces.init_errlog_ptr; |
| 654 | fw->inst_evtlog_ptr = pieces.inst_evtlog_ptr; |
Johannes Berg | 15854ef | 2012-03-05 11:24:50 -0800 | [diff] [blame] | 655 | if (pieces.inst_evtlog_size) |
Johannes Berg | 0692fe4 | 2012-03-06 13:30:37 -0800 | [diff] [blame^] | 656 | fw->inst_evtlog_size = (pieces.inst_evtlog_size - 16)/12; |
Johannes Berg | 15854ef | 2012-03-05 11:24:50 -0800 | [diff] [blame] | 657 | else |
Johannes Berg | 0692fe4 | 2012-03-06 13:30:37 -0800 | [diff] [blame^] | 658 | fw->inst_evtlog_size = |
Johannes Berg | 15854ef | 2012-03-05 11:24:50 -0800 | [diff] [blame] | 659 | cfg->base_params->max_event_log_size; |
Johannes Berg | 0692fe4 | 2012-03-06 13:30:37 -0800 | [diff] [blame^] | 660 | fw->inst_errlog_ptr = pieces.inst_errlog_ptr; |
Johannes Berg | 15854ef | 2012-03-05 11:24:50 -0800 | [diff] [blame] | 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 | |
Johannes Berg | 0692fe4 | 2012-03-06 13:30:37 -0800 | [diff] [blame^] | 675 | nic->op_mode = iwl_dvm_ops.start(nic->shrd->trans, &nic->fw); |
Johannes Berg | 15854ef | 2012-03-05 11:24:50 -0800 | [diff] [blame] | 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 | |
Emmanuel Grumbach | 5c58edc | 2012-02-07 14:18:40 +0200 | [diff] [blame] | 698 | int iwl_drv_start(struct iwl_shared *shrd, |
Johannes Berg | 706c4ff | 2012-03-05 11:24:33 -0800 | [diff] [blame] | 699 | struct iwl_trans *trans, const struct iwl_cfg *cfg) |
Emmanuel Grumbach | 5c58edc | 2012-02-07 14:18:40 +0200 | [diff] [blame] | 700 | { |
Johannes Berg | 0692fe4 | 2012-03-06 13:30:37 -0800 | [diff] [blame^] | 701 | struct iwl_nic *nic; |
Emmanuel Grumbach | 5c58edc | 2012-02-07 14:18:40 +0200 | [diff] [blame] | 702 | int ret; |
| 703 | |
| 704 | shrd->cfg = cfg; |
| 705 | |
Johannes Berg | 0692fe4 | 2012-03-06 13:30:37 -0800 | [diff] [blame^] | 706 | nic = kzalloc(sizeof(*nic), GFP_KERNEL); |
| 707 | if (!nic) { |
Emmanuel Grumbach | 5c58edc | 2012-02-07 14:18:40 +0200 | [diff] [blame] | 708 | dev_printk(KERN_ERR, trans->dev, "Couldn't allocate iwl_nic"); |
| 709 | return -ENOMEM; |
| 710 | } |
Johannes Berg | 0692fe4 | 2012-03-06 13:30:37 -0800 | [diff] [blame^] | 711 | nic->shrd = shrd; |
| 712 | shrd->nic = nic; |
Emmanuel Grumbach | 5c58edc | 2012-02-07 14:18:40 +0200 | [diff] [blame] | 713 | |
Johannes Berg | 0692fe4 | 2012-03-06 13:30:37 -0800 | [diff] [blame^] | 714 | init_completion(&nic->request_firmware_complete); |
Emmanuel Grumbach | 5c58edc | 2012-02-07 14:18:40 +0200 | [diff] [blame] | 715 | |
Johannes Berg | 0692fe4 | 2012-03-06 13:30:37 -0800 | [diff] [blame^] | 716 | ret = iwl_request_firmware(nic, true); |
Emmanuel Grumbach | 5c58edc | 2012-02-07 14:18:40 +0200 | [diff] [blame] | 717 | |
| 718 | if (ret) { |
| 719 | dev_printk(KERN_ERR, trans->dev, "Couldn't request the fw"); |
Johannes Berg | 0692fe4 | 2012-03-06 13:30:37 -0800 | [diff] [blame^] | 720 | kfree(nic); |
| 721 | shrd->nic = NULL; |
Emmanuel Grumbach | 5c58edc | 2012-02-07 14:18:40 +0200 | [diff] [blame] | 722 | } |
| 723 | |
| 724 | return ret; |
| 725 | } |
| 726 | |
Emmanuel Grumbach | 07590f0 | 2012-02-07 14:27:31 +0200 | [diff] [blame] | 727 | void iwl_drv_stop(struct iwl_shared *shrd) |
| 728 | { |
Johannes Berg | 0692fe4 | 2012-03-06 13:30:37 -0800 | [diff] [blame^] | 729 | struct iwl_nic *nic = shrd->nic; |
| 730 | |
| 731 | wait_for_completion(&nic->request_firmware_complete); |
Johannes Berg | 2e7eb11 | 2012-03-05 11:24:51 -0800 | [diff] [blame] | 732 | |
Emmanuel Grumbach | d0f76d6 | 2012-02-09 16:08:15 +0200 | [diff] [blame] | 733 | /* op_mode can be NULL if its start failed */ |
Johannes Berg | 0692fe4 | 2012-03-06 13:30:37 -0800 | [diff] [blame^] | 734 | if (nic->op_mode) |
| 735 | iwl_op_mode_stop(nic->op_mode); |
Emmanuel Grumbach | 07590f0 | 2012-02-07 14:27:31 +0200 | [diff] [blame] | 736 | |
Johannes Berg | 0692fe4 | 2012-03-06 13:30:37 -0800 | [diff] [blame^] | 737 | iwl_dealloc_ucode(nic); |
Johannes Berg | 7db5b98 | 2012-03-05 11:24:48 -0800 | [diff] [blame] | 738 | |
Johannes Berg | 0692fe4 | 2012-03-06 13:30:37 -0800 | [diff] [blame^] | 739 | kfree(nic); |
| 740 | shrd->nic = NULL; |
Emmanuel Grumbach | 07590f0 | 2012-02-07 14:27:31 +0200 | [diff] [blame] | 741 | } |