1 /* 2 * This file is part of wl1271 3 * 4 * Copyright (C) 2008-2010 Nokia Corporation 5 * 6 * Contact: Luciano Coelho <luciano.coelho@nokia.com> 7 * 8 * This program is free software; you can redistribute it and/or 9 * modify it under the terms of the GNU General Public License 10 * version 2 as published by the Free Software Foundation. 11 * 12 * This program is distributed in the hope that it will be useful, but 13 * WITHOUT ANY WARRANTY; without even the implied warranty of 14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 15 * General Public License for more details. 16 * 17 * You should have received a copy of the GNU General Public License 18 * along with this program; if not, write to the Free Software 19 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 20 * 02110-1301 USA 21 * 22 */ 23 24 #include <linux/slab.h> 25 #include <linux/wl12xx.h> 26 #include <linux/export.h> 27 28 #include "debug.h" 29 #include "acx.h" 30 #include "boot.h" 31 #include "io.h" 32 #include "event.h" 33 #include "rx.h" 34 #include "hw_ops.h" 35 36 static int wl1271_boot_set_ecpu_ctrl(struct wl1271 *wl, u32 flag) 37 { 38 u32 cpu_ctrl; 39 int ret; 40 41 /* 10.5.0 run the firmware (I) */ 42 ret = wlcore_read_reg(wl, REG_ECPU_CONTROL, &cpu_ctrl); 43 if (ret < 0) 44 goto out; 45 46 /* 10.5.1 run the firmware (II) */ 47 cpu_ctrl |= flag; 48 ret = wlcore_write_reg(wl, REG_ECPU_CONTROL, cpu_ctrl); 49 50 out: 51 return ret; 52 } 53 54 static int wlcore_boot_parse_fw_ver(struct wl1271 *wl, 55 struct wl1271_static_data *static_data) 56 { 57 int ret; 58 59 strncpy(wl->chip.fw_ver_str, static_data->fw_version, 60 sizeof(wl->chip.fw_ver_str)); 61 62 /* make sure the string is NULL-terminated */ 63 wl->chip.fw_ver_str[sizeof(wl->chip.fw_ver_str) - 1] = '\0'; 64 65 ret = sscanf(wl->chip.fw_ver_str + 4, "%u.%u.%u.%u.%u", 66 &wl->chip.fw_ver[0], &wl->chip.fw_ver[1], 67 &wl->chip.fw_ver[2], &wl->chip.fw_ver[3], 68 &wl->chip.fw_ver[4]); 69 70 if (ret != 5) { 71 wl1271_warning("fw version incorrect value"); 72 memset(wl->chip.fw_ver, 0, sizeof(wl->chip.fw_ver)); 73 ret = -EINVAL; 74 goto out; 75 } 76 77 ret = wlcore_identify_fw(wl); 78 if (ret < 0) 79 goto out; 80 out: 81 return ret; 82 } 83 84 static int wlcore_validate_fw_ver(struct wl1271 *wl) 85 { 86 unsigned int *fw_ver = wl->chip.fw_ver; 87 unsigned int *min_ver = (wl->fw_type == WL12XX_FW_TYPE_MULTI) ? 88 wl->min_mr_fw_ver : wl->min_sr_fw_ver; 89 char min_fw_str[32] = ""; 90 int i; 91 92 /* the chip must be exactly equal */ 93 if ((min_ver[FW_VER_CHIP] != WLCORE_FW_VER_IGNORE) && 94 (min_ver[FW_VER_CHIP] != fw_ver[FW_VER_CHIP])) 95 goto fail; 96 97 /* the firmware type must be equal */ 98 if ((min_ver[FW_VER_IF_TYPE] != WLCORE_FW_VER_IGNORE) && 99 (min_ver[FW_VER_IF_TYPE] != fw_ver[FW_VER_IF_TYPE])) 100 goto fail; 101 102 /* the project number must be equal */ 103 if ((min_ver[FW_VER_SUBTYPE] != WLCORE_FW_VER_IGNORE) && 104 (min_ver[FW_VER_SUBTYPE] != fw_ver[FW_VER_SUBTYPE])) 105 goto fail; 106 107 /* the API version must be greater or equal */ 108 if ((min_ver[FW_VER_MAJOR] != WLCORE_FW_VER_IGNORE) && 109 (min_ver[FW_VER_MAJOR] > fw_ver[FW_VER_MAJOR])) 110 goto fail; 111 112 /* if the API version is equal... */ 113 if (((min_ver[FW_VER_MAJOR] == WLCORE_FW_VER_IGNORE) || 114 (min_ver[FW_VER_MAJOR] == fw_ver[FW_VER_MAJOR])) && 115 /* ...the minor must be greater or equal */ 116 ((min_ver[FW_VER_MINOR] != WLCORE_FW_VER_IGNORE) && 117 (min_ver[FW_VER_MINOR] > fw_ver[FW_VER_MINOR]))) 118 goto fail; 119 120 return 0; 121 122 fail: 123 for (i = 0; i < NUM_FW_VER; i++) 124 if (min_ver[i] == WLCORE_FW_VER_IGNORE) 125 snprintf(min_fw_str, sizeof(min_fw_str), 126 "%s*.", min_fw_str); 127 else 128 snprintf(min_fw_str, sizeof(min_fw_str), 129 "%s%u.", min_fw_str, min_ver[i]); 130 131 wl1271_error("Your WiFi FW version (%u.%u.%u.%u.%u) is invalid.\n" 132 "Please use at least FW %s\n" 133 "You can get the latest firmwares at:\n" 134 "git://github.com/TI-OpenLink/firmwares.git", 135 fw_ver[FW_VER_CHIP], fw_ver[FW_VER_IF_TYPE], 136 fw_ver[FW_VER_MAJOR], fw_ver[FW_VER_SUBTYPE], 137 fw_ver[FW_VER_MINOR], min_fw_str); 138 return -EINVAL; 139 } 140 141 static int wlcore_boot_static_data(struct wl1271 *wl) 142 { 143 struct wl1271_static_data *static_data; 144 size_t len = sizeof(*static_data) + wl->static_data_priv_len; 145 int ret; 146 147 static_data = kmalloc(len, GFP_KERNEL); 148 if (!static_data) { 149 ret = -ENOMEM; 150 goto out; 151 } 152 153 ret = wlcore_read(wl, wl->cmd_box_addr, static_data, len, false); 154 if (ret < 0) 155 goto out_free; 156 157 ret = wlcore_boot_parse_fw_ver(wl, static_data); 158 if (ret < 0) 159 goto out_free; 160 161 ret = wlcore_validate_fw_ver(wl); 162 if (ret < 0) 163 goto out_free; 164 165 ret = wlcore_handle_static_data(wl, static_data); 166 if (ret < 0) 167 goto out_free; 168 169 out_free: 170 kfree(static_data); 171 out: 172 return ret; 173 } 174 175 static int wl1271_boot_upload_firmware_chunk(struct wl1271 *wl, void *buf, 176 size_t fw_data_len, u32 dest) 177 { 178 struct wlcore_partition_set partition; 179 int addr, chunk_num, partition_limit; 180 u8 *p, *chunk; 181 int ret; 182 183 /* whal_FwCtrl_LoadFwImageSm() */ 184 185 wl1271_debug(DEBUG_BOOT, "starting firmware upload"); 186 187 wl1271_debug(DEBUG_BOOT, "fw_data_len %zd chunk_size %d", 188 fw_data_len, CHUNK_SIZE); 189 190 if ((fw_data_len % 4) != 0) { 191 wl1271_error("firmware length not multiple of four"); 192 return -EIO; 193 } 194 195 chunk = kmalloc(CHUNK_SIZE, GFP_KERNEL); 196 if (!chunk) { 197 wl1271_error("allocation for firmware upload chunk failed"); 198 return -ENOMEM; 199 } 200 201 memcpy(&partition, &wl->ptable[PART_DOWN], sizeof(partition)); 202 partition.mem.start = dest; 203 ret = wlcore_set_partition(wl, &partition); 204 if (ret < 0) 205 goto out; 206 207 /* 10.1 set partition limit and chunk num */ 208 chunk_num = 0; 209 partition_limit = wl->ptable[PART_DOWN].mem.size; 210 211 while (chunk_num < fw_data_len / CHUNK_SIZE) { 212 /* 10.2 update partition, if needed */ 213 addr = dest + (chunk_num + 2) * CHUNK_SIZE; 214 if (addr > partition_limit) { 215 addr = dest + chunk_num * CHUNK_SIZE; 216 partition_limit = chunk_num * CHUNK_SIZE + 217 wl->ptable[PART_DOWN].mem.size; 218 partition.mem.start = addr; 219 ret = wlcore_set_partition(wl, &partition); 220 if (ret < 0) 221 goto out; 222 } 223 224 /* 10.3 upload the chunk */ 225 addr = dest + chunk_num * CHUNK_SIZE; 226 p = buf + chunk_num * CHUNK_SIZE; 227 memcpy(chunk, p, CHUNK_SIZE); 228 wl1271_debug(DEBUG_BOOT, "uploading fw chunk 0x%p to 0x%x", 229 p, addr); 230 ret = wlcore_write(wl, addr, chunk, CHUNK_SIZE, false); 231 if (ret < 0) 232 goto out; 233 234 chunk_num++; 235 } 236 237 /* 10.4 upload the last chunk */ 238 addr = dest + chunk_num * CHUNK_SIZE; 239 p = buf + chunk_num * CHUNK_SIZE; 240 memcpy(chunk, p, fw_data_len % CHUNK_SIZE); 241 wl1271_debug(DEBUG_BOOT, "uploading fw last chunk (%zd B) 0x%p to 0x%x", 242 fw_data_len % CHUNK_SIZE, p, addr); 243 ret = wlcore_write(wl, addr, chunk, fw_data_len % CHUNK_SIZE, false); 244 245 out: 246 kfree(chunk); 247 return ret; 248 } 249 250 int wlcore_boot_upload_firmware(struct wl1271 *wl) 251 { 252 u32 chunks, addr, len; 253 int ret = 0; 254 u8 *fw; 255 256 fw = wl->fw; 257 chunks = be32_to_cpup((__be32 *) fw); 258 fw += sizeof(u32); 259 260 wl1271_debug(DEBUG_BOOT, "firmware chunks to be uploaded: %u", chunks); 261 262 while (chunks--) { 263 addr = be32_to_cpup((__be32 *) fw); 264 fw += sizeof(u32); 265 len = be32_to_cpup((__be32 *) fw); 266 fw += sizeof(u32); 267 268 if (len > 300000) { 269 wl1271_info("firmware chunk too long: %u", len); 270 return -EINVAL; 271 } 272 wl1271_debug(DEBUG_BOOT, "chunk %d addr 0x%x len %u", 273 chunks, addr, len); 274 ret = wl1271_boot_upload_firmware_chunk(wl, fw, len, addr); 275 if (ret != 0) 276 break; 277 fw += len; 278 } 279 280 return ret; 281 } 282 EXPORT_SYMBOL_GPL(wlcore_boot_upload_firmware); 283 284 int wlcore_boot_upload_nvs(struct wl1271 *wl) 285 { 286 size_t nvs_len, burst_len; 287 int i; 288 u32 dest_addr, val; 289 u8 *nvs_ptr, *nvs_aligned; 290 int ret; 291 292 if (wl->nvs == NULL) { 293 wl1271_error("NVS file is needed during boot"); 294 return -ENODEV; 295 } 296 297 if (wl->quirks & WLCORE_QUIRK_LEGACY_NVS) { 298 struct wl1271_nvs_file *nvs = 299 (struct wl1271_nvs_file *)wl->nvs; 300 /* 301 * FIXME: the LEGACY NVS image support (NVS's missing the 5GHz 302 * band configurations) can be removed when those NVS files stop 303 * floating around. 304 */ 305 if (wl->nvs_len == sizeof(struct wl1271_nvs_file) || 306 wl->nvs_len == WL1271_INI_LEGACY_NVS_FILE_SIZE) { 307 if (nvs->general_params.dual_mode_select) 308 wl->enable_11a = true; 309 } 310 311 if (wl->nvs_len != sizeof(struct wl1271_nvs_file) && 312 (wl->nvs_len != WL1271_INI_LEGACY_NVS_FILE_SIZE || 313 wl->enable_11a)) { 314 wl1271_error("nvs size is not as expected: %zu != %zu", 315 wl->nvs_len, sizeof(struct wl1271_nvs_file)); 316 kfree(wl->nvs); 317 wl->nvs = NULL; 318 wl->nvs_len = 0; 319 return -EILSEQ; 320 } 321 322 /* only the first part of the NVS needs to be uploaded */ 323 nvs_len = sizeof(nvs->nvs); 324 nvs_ptr = (u8 *) nvs->nvs; 325 } else { 326 struct wl128x_nvs_file *nvs = (struct wl128x_nvs_file *)wl->nvs; 327 328 if (wl->nvs_len == sizeof(struct wl128x_nvs_file)) { 329 if (nvs->general_params.dual_mode_select) 330 wl->enable_11a = true; 331 } else { 332 wl1271_error("nvs size is not as expected: %zu != %zu", 333 wl->nvs_len, 334 sizeof(struct wl128x_nvs_file)); 335 kfree(wl->nvs); 336 wl->nvs = NULL; 337 wl->nvs_len = 0; 338 return -EILSEQ; 339 } 340 341 /* only the first part of the NVS needs to be uploaded */ 342 nvs_len = sizeof(nvs->nvs); 343 nvs_ptr = (u8 *)nvs->nvs; 344 } 345 346 /* update current MAC address to NVS */ 347 nvs_ptr[11] = wl->addresses[0].addr[0]; 348 nvs_ptr[10] = wl->addresses[0].addr[1]; 349 nvs_ptr[6] = wl->addresses[0].addr[2]; 350 nvs_ptr[5] = wl->addresses[0].addr[3]; 351 nvs_ptr[4] = wl->addresses[0].addr[4]; 352 nvs_ptr[3] = wl->addresses[0].addr[5]; 353 354 /* 355 * Layout before the actual NVS tables: 356 * 1 byte : burst length. 357 * 2 bytes: destination address. 358 * n bytes: data to burst copy. 359 * 360 * This is ended by a 0 length, then the NVS tables. 361 */ 362 363 /* FIXME: Do we need to check here whether the LSB is 1? */ 364 while (nvs_ptr[0]) { 365 burst_len = nvs_ptr[0]; 366 dest_addr = (nvs_ptr[1] & 0xfe) | ((u32)(nvs_ptr[2] << 8)); 367 368 /* 369 * Due to our new wl1271_translate_reg_addr function, 370 * we need to add the register partition start address 371 * to the destination 372 */ 373 dest_addr += wl->curr_part.reg.start; 374 375 /* We move our pointer to the data */ 376 nvs_ptr += 3; 377 378 for (i = 0; i < burst_len; i++) { 379 if (nvs_ptr + 3 >= (u8 *) wl->nvs + nvs_len) 380 goto out_badnvs; 381 382 val = (nvs_ptr[0] | (nvs_ptr[1] << 8) 383 | (nvs_ptr[2] << 16) | (nvs_ptr[3] << 24)); 384 385 wl1271_debug(DEBUG_BOOT, 386 "nvs burst write 0x%x: 0x%x", 387 dest_addr, val); 388 ret = wlcore_write32(wl, dest_addr, val); 389 if (ret < 0) 390 return ret; 391 392 nvs_ptr += 4; 393 dest_addr += 4; 394 } 395 396 if (nvs_ptr >= (u8 *) wl->nvs + nvs_len) 397 goto out_badnvs; 398 } 399 400 /* 401 * We've reached the first zero length, the first NVS table 402 * is located at an aligned offset which is at least 7 bytes further. 403 * NOTE: The wl->nvs->nvs element must be first, in order to 404 * simplify the casting, we assume it is at the beginning of 405 * the wl->nvs structure. 406 */ 407 nvs_ptr = (u8 *)wl->nvs + 408 ALIGN(nvs_ptr - (u8 *)wl->nvs + 7, 4); 409 410 if (nvs_ptr >= (u8 *) wl->nvs + nvs_len) 411 goto out_badnvs; 412 413 nvs_len -= nvs_ptr - (u8 *)wl->nvs; 414 415 /* Now we must set the partition correctly */ 416 ret = wlcore_set_partition(wl, &wl->ptable[PART_WORK]); 417 if (ret < 0) 418 return ret; 419 420 /* Copy the NVS tables to a new block to ensure alignment */ 421 nvs_aligned = kmemdup(nvs_ptr, nvs_len, GFP_KERNEL); 422 if (!nvs_aligned) 423 return -ENOMEM; 424 425 /* And finally we upload the NVS tables */ 426 ret = wlcore_write_data(wl, REG_CMD_MBOX_ADDRESS, nvs_aligned, nvs_len, 427 false); 428 429 kfree(nvs_aligned); 430 return ret; 431 432 out_badnvs: 433 wl1271_error("nvs data is malformed"); 434 return -EILSEQ; 435 } 436 EXPORT_SYMBOL_GPL(wlcore_boot_upload_nvs); 437 438 int wlcore_boot_run_firmware(struct wl1271 *wl) 439 { 440 int loop, ret; 441 u32 chip_id, intr; 442 443 /* Make sure we have the boot partition */ 444 ret = wlcore_set_partition(wl, &wl->ptable[PART_BOOT]); 445 if (ret < 0) 446 return ret; 447 448 ret = wl1271_boot_set_ecpu_ctrl(wl, ECPU_CONTROL_HALT); 449 if (ret < 0) 450 return ret; 451 452 ret = wlcore_read_reg(wl, REG_CHIP_ID_B, &chip_id); 453 if (ret < 0) 454 return ret; 455 456 wl1271_debug(DEBUG_BOOT, "chip id after firmware boot: 0x%x", chip_id); 457 458 if (chip_id != wl->chip.id) { 459 wl1271_error("chip id doesn't match after firmware boot"); 460 return -EIO; 461 } 462 463 /* wait for init to complete */ 464 loop = 0; 465 while (loop++ < INIT_LOOP) { 466 udelay(INIT_LOOP_DELAY); 467 ret = wlcore_read_reg(wl, REG_INTERRUPT_NO_CLEAR, &intr); 468 if (ret < 0) 469 return ret; 470 471 if (intr == 0xffffffff) { 472 wl1271_error("error reading hardware complete " 473 "init indication"); 474 return -EIO; 475 } 476 /* check that ACX_INTR_INIT_COMPLETE is enabled */ 477 else if (intr & WL1271_ACX_INTR_INIT_COMPLETE) { 478 ret = wlcore_write_reg(wl, REG_INTERRUPT_ACK, 479 WL1271_ACX_INTR_INIT_COMPLETE); 480 if (ret < 0) 481 return ret; 482 break; 483 } 484 } 485 486 if (loop > INIT_LOOP) { 487 wl1271_error("timeout waiting for the hardware to " 488 "complete initialization"); 489 return -EIO; 490 } 491 492 /* get hardware config command mail box */ 493 ret = wlcore_read_reg(wl, REG_COMMAND_MAILBOX_PTR, &wl->cmd_box_addr); 494 if (ret < 0) 495 return ret; 496 497 wl1271_debug(DEBUG_MAILBOX, "cmd_box_addr 0x%x", wl->cmd_box_addr); 498 499 /* get hardware config event mail box */ 500 ret = wlcore_read_reg(wl, REG_EVENT_MAILBOX_PTR, &wl->mbox_ptr[0]); 501 if (ret < 0) 502 return ret; 503 504 wl->mbox_ptr[1] = wl->mbox_ptr[0] + wl->mbox_size; 505 506 wl1271_debug(DEBUG_MAILBOX, "MBOX ptrs: 0x%x 0x%x", 507 wl->mbox_ptr[0], wl->mbox_ptr[1]); 508 509 ret = wlcore_boot_static_data(wl); 510 if (ret < 0) { 511 wl1271_error("error getting static data"); 512 return ret; 513 } 514 515 /* 516 * in case of full asynchronous mode the firmware event must be 517 * ready to receive event from the command mailbox 518 */ 519 520 /* unmask required mbox events */ 521 ret = wl1271_event_unmask(wl); 522 if (ret < 0) { 523 wl1271_error("EVENT mask setting failed"); 524 return ret; 525 } 526 527 /* set the working partition to its "running" mode offset */ 528 ret = wlcore_set_partition(wl, &wl->ptable[PART_WORK]); 529 530 /* firmware startup completed */ 531 return ret; 532 } 533 EXPORT_SYMBOL_GPL(wlcore_boot_run_firmware); 534