1 /****************************************************************************** 2 * 3 * GPL LICENSE SUMMARY 4 * 5 * Copyright(c) 2008 - 2014 Intel Corporation. All rights reserved. 6 * 7 * This program is free software; you can redistribute it and/or modify 8 * it under the terms of version 2 of the GNU General Public License as 9 * published by the Free Software Foundation. 10 * 11 * This program is distributed in the hope that it will be useful, but 12 * WITHOUT ANY WARRANTY; without even the implied warranty of 13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 14 * General Public License for more details. 15 * 16 * You should have received a copy of the GNU General Public License 17 * along with this program; if not, write to the Free Software 18 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110, 19 * USA 20 * 21 * The full GNU General Public License is included in this distribution 22 * in the file called COPYING. 23 * 24 * Contact Information: 25 * Intel Linux Wireless <linuxwifi@intel.com> 26 * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497 27 *****************************************************************************/ 28 29 #include <linux/slab.h> 30 #include <linux/kernel.h> 31 #include <linux/module.h> 32 #include <linux/debugfs.h> 33 #include <linux/ieee80211.h> 34 #include <net/mac80211.h> 35 36 #include "iwl-debug.h" 37 #include "iwl-trans.h" 38 #include "iwl-io.h" 39 #include "dev.h" 40 #include "agn.h" 41 42 /* create and remove of files */ 43 #define DEBUGFS_ADD_FILE(name, parent, mode) do { \ 44 if (!debugfs_create_file(#name, mode, parent, priv, \ 45 &iwl_dbgfs_##name##_ops)) \ 46 goto err; \ 47 } while (0) 48 49 #define DEBUGFS_ADD_BOOL(name, parent, ptr) do { \ 50 struct dentry *__tmp; \ 51 __tmp = debugfs_create_bool(#name, 0600, parent, ptr); \ 52 if (IS_ERR(__tmp) || !__tmp) \ 53 goto err; \ 54 } while (0) 55 56 #define DEBUGFS_ADD_X32(name, parent, ptr) do { \ 57 struct dentry *__tmp; \ 58 __tmp = debugfs_create_x32(#name, 0600, parent, ptr); \ 59 if (IS_ERR(__tmp) || !__tmp) \ 60 goto err; \ 61 } while (0) 62 63 #define DEBUGFS_ADD_U32(name, parent, ptr, mode) do { \ 64 struct dentry *__tmp; \ 65 __tmp = debugfs_create_u32(#name, mode, \ 66 parent, ptr); \ 67 if (IS_ERR(__tmp) || !__tmp) \ 68 goto err; \ 69 } while (0) 70 71 /* file operation */ 72 #define DEBUGFS_READ_FILE_OPS(name) \ 73 static const struct file_operations iwl_dbgfs_##name##_ops = { \ 74 .read = iwl_dbgfs_##name##_read, \ 75 .open = simple_open, \ 76 .llseek = generic_file_llseek, \ 77 }; 78 79 #define DEBUGFS_WRITE_FILE_OPS(name) \ 80 static const struct file_operations iwl_dbgfs_##name##_ops = { \ 81 .write = iwl_dbgfs_##name##_write, \ 82 .open = simple_open, \ 83 .llseek = generic_file_llseek, \ 84 }; 85 86 87 #define DEBUGFS_READ_WRITE_FILE_OPS(name) \ 88 static const struct file_operations iwl_dbgfs_##name##_ops = { \ 89 .write = iwl_dbgfs_##name##_write, \ 90 .read = iwl_dbgfs_##name##_read, \ 91 .open = simple_open, \ 92 .llseek = generic_file_llseek, \ 93 }; 94 95 static ssize_t iwl_dbgfs_sram_read(struct file *file, 96 char __user *user_buf, 97 size_t count, loff_t *ppos) 98 { 99 u32 val = 0; 100 char *buf; 101 ssize_t ret; 102 int i = 0; 103 bool device_format = false; 104 int offset = 0; 105 int len = 0; 106 int pos = 0; 107 int sram; 108 struct iwl_priv *priv = file->private_data; 109 const struct fw_img *img; 110 size_t bufsz; 111 112 if (!iwl_is_ready_rf(priv)) 113 return -EAGAIN; 114 115 /* default is to dump the entire data segment */ 116 if (!priv->dbgfs_sram_offset && !priv->dbgfs_sram_len) { 117 priv->dbgfs_sram_offset = 0x800000; 118 if (!priv->ucode_loaded) 119 return -EINVAL; 120 img = &priv->fw->img[priv->cur_ucode]; 121 priv->dbgfs_sram_len = img->sec[IWL_UCODE_SECTION_DATA].len; 122 } 123 len = priv->dbgfs_sram_len; 124 125 if (len == -4) { 126 device_format = true; 127 len = 4; 128 } 129 130 bufsz = 50 + len * 4; 131 buf = kmalloc(bufsz, GFP_KERNEL); 132 if (!buf) 133 return -ENOMEM; 134 135 pos += scnprintf(buf + pos, bufsz - pos, "sram_len: 0x%x\n", 136 len); 137 pos += scnprintf(buf + pos, bufsz - pos, "sram_offset: 0x%x\n", 138 priv->dbgfs_sram_offset); 139 140 /* adjust sram address since reads are only on even u32 boundaries */ 141 offset = priv->dbgfs_sram_offset & 0x3; 142 sram = priv->dbgfs_sram_offset & ~0x3; 143 144 /* read the first u32 from sram */ 145 val = iwl_trans_read_mem32(priv->trans, sram); 146 147 for (; len; len--) { 148 /* put the address at the start of every line */ 149 if (i == 0) 150 pos += scnprintf(buf + pos, bufsz - pos, 151 "%08X: ", sram + offset); 152 153 if (device_format) 154 pos += scnprintf(buf + pos, bufsz - pos, 155 "%02x", (val >> (8 * (3 - offset))) & 0xff); 156 else 157 pos += scnprintf(buf + pos, bufsz - pos, 158 "%02x ", (val >> (8 * offset)) & 0xff); 159 160 /* if all bytes processed, read the next u32 from sram */ 161 if (++offset == 4) { 162 sram += 4; 163 offset = 0; 164 val = iwl_trans_read_mem32(priv->trans, sram); 165 } 166 167 /* put in extra spaces and split lines for human readability */ 168 if (++i == 16) { 169 i = 0; 170 pos += scnprintf(buf + pos, bufsz - pos, "\n"); 171 } else if (!(i & 7)) { 172 pos += scnprintf(buf + pos, bufsz - pos, " "); 173 } else if (!(i & 3)) { 174 pos += scnprintf(buf + pos, bufsz - pos, " "); 175 } 176 } 177 if (i) 178 pos += scnprintf(buf + pos, bufsz - pos, "\n"); 179 180 ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos); 181 kfree(buf); 182 return ret; 183 } 184 185 static ssize_t iwl_dbgfs_sram_write(struct file *file, 186 const char __user *user_buf, 187 size_t count, loff_t *ppos) 188 { 189 struct iwl_priv *priv = file->private_data; 190 char buf[64]; 191 int buf_size; 192 u32 offset, len; 193 194 memset(buf, 0, sizeof(buf)); 195 buf_size = min(count, sizeof(buf) - 1); 196 if (copy_from_user(buf, user_buf, buf_size)) 197 return -EFAULT; 198 199 if (sscanf(buf, "%x,%x", &offset, &len) == 2) { 200 priv->dbgfs_sram_offset = offset; 201 priv->dbgfs_sram_len = len; 202 } else if (sscanf(buf, "%x", &offset) == 1) { 203 priv->dbgfs_sram_offset = offset; 204 priv->dbgfs_sram_len = -4; 205 } else { 206 priv->dbgfs_sram_offset = 0; 207 priv->dbgfs_sram_len = 0; 208 } 209 210 return count; 211 } 212 213 static ssize_t iwl_dbgfs_wowlan_sram_read(struct file *file, 214 char __user *user_buf, 215 size_t count, loff_t *ppos) 216 { 217 struct iwl_priv *priv = file->private_data; 218 const struct fw_img *img = &priv->fw->img[IWL_UCODE_WOWLAN]; 219 220 if (!priv->wowlan_sram) 221 return -ENODATA; 222 223 return simple_read_from_buffer(user_buf, count, ppos, 224 priv->wowlan_sram, 225 img->sec[IWL_UCODE_SECTION_DATA].len); 226 } 227 static ssize_t iwl_dbgfs_stations_read(struct file *file, char __user *user_buf, 228 size_t count, loff_t *ppos) 229 { 230 struct iwl_priv *priv = file->private_data; 231 struct iwl_station_entry *station; 232 struct iwl_tid_data *tid_data; 233 char *buf; 234 int i, j, pos = 0; 235 ssize_t ret; 236 /* Add 30 for initial string */ 237 const size_t bufsz = 30 + sizeof(char) * 500 * (priv->num_stations); 238 239 buf = kmalloc(bufsz, GFP_KERNEL); 240 if (!buf) 241 return -ENOMEM; 242 243 pos += scnprintf(buf + pos, bufsz - pos, "num of stations: %d\n\n", 244 priv->num_stations); 245 246 for (i = 0; i < IWLAGN_STATION_COUNT; i++) { 247 station = &priv->stations[i]; 248 if (!station->used) 249 continue; 250 pos += scnprintf(buf + pos, bufsz - pos, 251 "station %d - addr: %pM, flags: %#x\n", 252 i, station->sta.sta.addr, 253 station->sta.station_flags_msk); 254 pos += scnprintf(buf + pos, bufsz - pos, 255 "TID seqno next_rclmd " 256 "rate_n_flags state txq\n"); 257 258 for (j = 0; j < IWL_MAX_TID_COUNT; j++) { 259 tid_data = &priv->tid_data[i][j]; 260 pos += scnprintf(buf + pos, bufsz - pos, 261 "%d: 0x%.4x 0x%.4x 0x%.8x " 262 "%d %.2d", 263 j, tid_data->seq_number, 264 tid_data->next_reclaimed, 265 tid_data->agg.rate_n_flags, 266 tid_data->agg.state, 267 tid_data->agg.txq_id); 268 269 if (tid_data->agg.wait_for_ba) 270 pos += scnprintf(buf + pos, bufsz - pos, 271 " - waitforba"); 272 pos += scnprintf(buf + pos, bufsz - pos, "\n"); 273 } 274 275 pos += scnprintf(buf + pos, bufsz - pos, "\n"); 276 } 277 278 ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos); 279 kfree(buf); 280 return ret; 281 } 282 283 static ssize_t iwl_dbgfs_nvm_read(struct file *file, 284 char __user *user_buf, 285 size_t count, 286 loff_t *ppos) 287 { 288 ssize_t ret; 289 struct iwl_priv *priv = file->private_data; 290 int pos = 0, ofs = 0, buf_size = 0; 291 const u8 *ptr; 292 char *buf; 293 u16 nvm_ver; 294 size_t eeprom_len = priv->eeprom_blob_size; 295 buf_size = 4 * eeprom_len + 256; 296 297 if (eeprom_len % 16) 298 return -ENODATA; 299 300 ptr = priv->eeprom_blob; 301 if (!ptr) 302 return -ENOMEM; 303 304 /* 4 characters for byte 0xYY */ 305 buf = kzalloc(buf_size, GFP_KERNEL); 306 if (!buf) 307 return -ENOMEM; 308 309 nvm_ver = priv->nvm_data->nvm_version; 310 pos += scnprintf(buf + pos, buf_size - pos, 311 "NVM version: 0x%x\n", nvm_ver); 312 for (ofs = 0 ; ofs < eeprom_len ; ofs += 16) { 313 pos += scnprintf(buf + pos, buf_size - pos, "0x%.4x %16ph\n", 314 ofs, ptr + ofs); 315 } 316 317 ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos); 318 kfree(buf); 319 return ret; 320 } 321 322 static ssize_t iwl_dbgfs_channels_read(struct file *file, char __user *user_buf, 323 size_t count, loff_t *ppos) 324 { 325 struct iwl_priv *priv = file->private_data; 326 struct ieee80211_channel *channels = NULL; 327 const struct ieee80211_supported_band *supp_band = NULL; 328 int pos = 0, i, bufsz = PAGE_SIZE; 329 char *buf; 330 ssize_t ret; 331 332 buf = kzalloc(bufsz, GFP_KERNEL); 333 if (!buf) 334 return -ENOMEM; 335 336 supp_band = iwl_get_hw_mode(priv, NL80211_BAND_2GHZ); 337 if (supp_band) { 338 channels = supp_band->channels; 339 340 pos += scnprintf(buf + pos, bufsz - pos, 341 "Displaying %d channels in 2.4GHz band 802.11bg):\n", 342 supp_band->n_channels); 343 344 for (i = 0; i < supp_band->n_channels; i++) 345 pos += scnprintf(buf + pos, bufsz - pos, 346 "%d: %ddBm: BSS%s%s, %s.\n", 347 channels[i].hw_value, 348 channels[i].max_power, 349 channels[i].flags & IEEE80211_CHAN_RADAR ? 350 " (IEEE 802.11h required)" : "", 351 ((channels[i].flags & IEEE80211_CHAN_NO_IR) 352 || (channels[i].flags & 353 IEEE80211_CHAN_RADAR)) ? "" : 354 ", IBSS", 355 channels[i].flags & 356 IEEE80211_CHAN_NO_IR ? 357 "passive only" : "active/passive"); 358 } 359 supp_band = iwl_get_hw_mode(priv, NL80211_BAND_5GHZ); 360 if (supp_band) { 361 channels = supp_band->channels; 362 363 pos += scnprintf(buf + pos, bufsz - pos, 364 "Displaying %d channels in 5.2GHz band (802.11a)\n", 365 supp_band->n_channels); 366 367 for (i = 0; i < supp_band->n_channels; i++) 368 pos += scnprintf(buf + pos, bufsz - pos, 369 "%d: %ddBm: BSS%s%s, %s.\n", 370 channels[i].hw_value, 371 channels[i].max_power, 372 channels[i].flags & IEEE80211_CHAN_RADAR ? 373 " (IEEE 802.11h required)" : "", 374 ((channels[i].flags & IEEE80211_CHAN_NO_IR) 375 || (channels[i].flags & 376 IEEE80211_CHAN_RADAR)) ? "" : 377 ", IBSS", 378 channels[i].flags & 379 IEEE80211_CHAN_NO_IR ? 380 "passive only" : "active/passive"); 381 } 382 ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos); 383 kfree(buf); 384 return ret; 385 } 386 387 static ssize_t iwl_dbgfs_status_read(struct file *file, 388 char __user *user_buf, 389 size_t count, loff_t *ppos) { 390 391 struct iwl_priv *priv = file->private_data; 392 char buf[512]; 393 int pos = 0; 394 const size_t bufsz = sizeof(buf); 395 396 pos += scnprintf(buf + pos, bufsz - pos, "STATUS_RF_KILL_HW:\t %d\n", 397 test_bit(STATUS_RF_KILL_HW, &priv->status)); 398 pos += scnprintf(buf + pos, bufsz - pos, "STATUS_CT_KILL:\t\t %d\n", 399 test_bit(STATUS_CT_KILL, &priv->status)); 400 pos += scnprintf(buf + pos, bufsz - pos, "STATUS_ALIVE:\t\t %d\n", 401 test_bit(STATUS_ALIVE, &priv->status)); 402 pos += scnprintf(buf + pos, bufsz - pos, "STATUS_READY:\t\t %d\n", 403 test_bit(STATUS_READY, &priv->status)); 404 pos += scnprintf(buf + pos, bufsz - pos, "STATUS_EXIT_PENDING:\t %d\n", 405 test_bit(STATUS_EXIT_PENDING, &priv->status)); 406 pos += scnprintf(buf + pos, bufsz - pos, "STATUS_STATISTICS:\t %d\n", 407 test_bit(STATUS_STATISTICS, &priv->status)); 408 pos += scnprintf(buf + pos, bufsz - pos, "STATUS_SCANNING:\t %d\n", 409 test_bit(STATUS_SCANNING, &priv->status)); 410 pos += scnprintf(buf + pos, bufsz - pos, "STATUS_SCAN_ABORTING:\t %d\n", 411 test_bit(STATUS_SCAN_ABORTING, &priv->status)); 412 pos += scnprintf(buf + pos, bufsz - pos, "STATUS_SCAN_HW:\t\t %d\n", 413 test_bit(STATUS_SCAN_HW, &priv->status)); 414 pos += scnprintf(buf + pos, bufsz - pos, "STATUS_POWER_PMI:\t %d\n", 415 test_bit(STATUS_POWER_PMI, &priv->status)); 416 pos += scnprintf(buf + pos, bufsz - pos, "STATUS_FW_ERROR:\t %d\n", 417 test_bit(STATUS_FW_ERROR, &priv->status)); 418 return simple_read_from_buffer(user_buf, count, ppos, buf, pos); 419 } 420 421 static ssize_t iwl_dbgfs_rx_handlers_read(struct file *file, 422 char __user *user_buf, 423 size_t count, loff_t *ppos) { 424 425 struct iwl_priv *priv = file->private_data; 426 427 int pos = 0; 428 int cnt = 0; 429 char *buf; 430 int bufsz = 24 * 64; /* 24 items * 64 char per item */ 431 ssize_t ret; 432 433 buf = kzalloc(bufsz, GFP_KERNEL); 434 if (!buf) 435 return -ENOMEM; 436 437 for (cnt = 0; cnt < REPLY_MAX; cnt++) { 438 if (priv->rx_handlers_stats[cnt] > 0) 439 pos += scnprintf(buf + pos, bufsz - pos, 440 "\tRx handler[%36s]:\t\t %u\n", 441 iwl_get_cmd_string(priv->trans, (u32)cnt), 442 priv->rx_handlers_stats[cnt]); 443 } 444 445 ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos); 446 kfree(buf); 447 return ret; 448 } 449 450 static ssize_t iwl_dbgfs_rx_handlers_write(struct file *file, 451 const char __user *user_buf, 452 size_t count, loff_t *ppos) 453 { 454 struct iwl_priv *priv = file->private_data; 455 456 char buf[8]; 457 int buf_size; 458 u32 reset_flag; 459 460 memset(buf, 0, sizeof(buf)); 461 buf_size = min(count, sizeof(buf) - 1); 462 if (copy_from_user(buf, user_buf, buf_size)) 463 return -EFAULT; 464 if (sscanf(buf, "%x", &reset_flag) != 1) 465 return -EFAULT; 466 if (reset_flag == 0) 467 memset(&priv->rx_handlers_stats[0], 0, 468 sizeof(priv->rx_handlers_stats)); 469 470 return count; 471 } 472 473 static ssize_t iwl_dbgfs_qos_read(struct file *file, char __user *user_buf, 474 size_t count, loff_t *ppos) 475 { 476 struct iwl_priv *priv = file->private_data; 477 struct iwl_rxon_context *ctx; 478 int pos = 0, i; 479 char buf[256 * NUM_IWL_RXON_CTX]; 480 const size_t bufsz = sizeof(buf); 481 482 for_each_context(priv, ctx) { 483 pos += scnprintf(buf + pos, bufsz - pos, "context %d:\n", 484 ctx->ctxid); 485 for (i = 0; i < AC_NUM; i++) { 486 pos += scnprintf(buf + pos, bufsz - pos, 487 "\tcw_min\tcw_max\taifsn\ttxop\n"); 488 pos += scnprintf(buf + pos, bufsz - pos, 489 "AC[%d]\t%u\t%u\t%u\t%u\n", i, 490 ctx->qos_data.def_qos_parm.ac[i].cw_min, 491 ctx->qos_data.def_qos_parm.ac[i].cw_max, 492 ctx->qos_data.def_qos_parm.ac[i].aifsn, 493 ctx->qos_data.def_qos_parm.ac[i].edca_txop); 494 } 495 pos += scnprintf(buf + pos, bufsz - pos, "\n"); 496 } 497 return simple_read_from_buffer(user_buf, count, ppos, buf, pos); 498 } 499 500 static ssize_t iwl_dbgfs_thermal_throttling_read(struct file *file, 501 char __user *user_buf, 502 size_t count, loff_t *ppos) 503 { 504 struct iwl_priv *priv = file->private_data; 505 struct iwl_tt_mgmt *tt = &priv->thermal_throttle; 506 struct iwl_tt_restriction *restriction; 507 char buf[100]; 508 int pos = 0; 509 const size_t bufsz = sizeof(buf); 510 511 pos += scnprintf(buf + pos, bufsz - pos, 512 "Thermal Throttling Mode: %s\n", 513 tt->advanced_tt ? "Advance" : "Legacy"); 514 pos += scnprintf(buf + pos, bufsz - pos, 515 "Thermal Throttling State: %d\n", 516 tt->state); 517 if (tt->advanced_tt) { 518 restriction = tt->restriction + tt->state; 519 pos += scnprintf(buf + pos, bufsz - pos, 520 "Tx mode: %d\n", 521 restriction->tx_stream); 522 pos += scnprintf(buf + pos, bufsz - pos, 523 "Rx mode: %d\n", 524 restriction->rx_stream); 525 pos += scnprintf(buf + pos, bufsz - pos, 526 "HT mode: %d\n", 527 restriction->is_ht); 528 } 529 return simple_read_from_buffer(user_buf, count, ppos, buf, pos); 530 } 531 532 static ssize_t iwl_dbgfs_disable_ht40_write(struct file *file, 533 const char __user *user_buf, 534 size_t count, loff_t *ppos) 535 { 536 struct iwl_priv *priv = file->private_data; 537 char buf[8]; 538 int buf_size; 539 int ht40; 540 541 memset(buf, 0, sizeof(buf)); 542 buf_size = min(count, sizeof(buf) - 1); 543 if (copy_from_user(buf, user_buf, buf_size)) 544 return -EFAULT; 545 if (sscanf(buf, "%d", &ht40) != 1) 546 return -EFAULT; 547 if (!iwl_is_any_associated(priv)) 548 priv->disable_ht40 = ht40 ? true : false; 549 else 550 return -EINVAL; 551 552 return count; 553 } 554 555 static ssize_t iwl_dbgfs_disable_ht40_read(struct file *file, 556 char __user *user_buf, 557 size_t count, loff_t *ppos) 558 { 559 struct iwl_priv *priv = file->private_data; 560 char buf[100]; 561 int pos = 0; 562 const size_t bufsz = sizeof(buf); 563 564 pos += scnprintf(buf + pos, bufsz - pos, 565 "11n 40MHz Mode: %s\n", 566 priv->disable_ht40 ? "Disabled" : "Enabled"); 567 return simple_read_from_buffer(user_buf, count, ppos, buf, pos); 568 } 569 570 static ssize_t iwl_dbgfs_temperature_read(struct file *file, 571 char __user *user_buf, 572 size_t count, loff_t *ppos) 573 { 574 struct iwl_priv *priv = file->private_data; 575 char buf[8]; 576 int pos = 0; 577 const size_t bufsz = sizeof(buf); 578 579 pos += scnprintf(buf + pos, bufsz - pos, "%d\n", priv->temperature); 580 return simple_read_from_buffer(user_buf, count, ppos, buf, pos); 581 } 582 583 584 static ssize_t iwl_dbgfs_sleep_level_override_write(struct file *file, 585 const char __user *user_buf, 586 size_t count, loff_t *ppos) 587 { 588 struct iwl_priv *priv = file->private_data; 589 char buf[8]; 590 int buf_size; 591 int value; 592 593 memset(buf, 0, sizeof(buf)); 594 buf_size = min(count, sizeof(buf) - 1); 595 if (copy_from_user(buf, user_buf, buf_size)) 596 return -EFAULT; 597 598 if (sscanf(buf, "%d", &value) != 1) 599 return -EINVAL; 600 601 /* 602 * Our users expect 0 to be "CAM", but 0 isn't actually 603 * valid here. However, let's not confuse them and present 604 * IWL_POWER_INDEX_1 as "1", not "0". 605 */ 606 if (value == 0) 607 return -EINVAL; 608 else if (value > 0) 609 value -= 1; 610 611 if (value != -1 && (value < 0 || value >= IWL_POWER_NUM)) 612 return -EINVAL; 613 614 if (!iwl_is_ready_rf(priv)) 615 return -EAGAIN; 616 617 priv->power_data.debug_sleep_level_override = value; 618 619 mutex_lock(&priv->mutex); 620 iwl_power_update_mode(priv, true); 621 mutex_unlock(&priv->mutex); 622 623 return count; 624 } 625 626 static ssize_t iwl_dbgfs_sleep_level_override_read(struct file *file, 627 char __user *user_buf, 628 size_t count, loff_t *ppos) 629 { 630 struct iwl_priv *priv = file->private_data; 631 char buf[10]; 632 int pos, value; 633 const size_t bufsz = sizeof(buf); 634 635 /* see the write function */ 636 value = priv->power_data.debug_sleep_level_override; 637 if (value >= 0) 638 value += 1; 639 640 pos = scnprintf(buf, bufsz, "%d\n", value); 641 return simple_read_from_buffer(user_buf, count, ppos, buf, pos); 642 } 643 644 static ssize_t iwl_dbgfs_current_sleep_command_read(struct file *file, 645 char __user *user_buf, 646 size_t count, loff_t *ppos) 647 { 648 struct iwl_priv *priv = file->private_data; 649 char buf[200]; 650 int pos = 0, i; 651 const size_t bufsz = sizeof(buf); 652 struct iwl_powertable_cmd *cmd = &priv->power_data.sleep_cmd; 653 654 pos += scnprintf(buf + pos, bufsz - pos, 655 "flags: %#.2x\n", le16_to_cpu(cmd->flags)); 656 pos += scnprintf(buf + pos, bufsz - pos, 657 "RX/TX timeout: %d/%d usec\n", 658 le32_to_cpu(cmd->rx_data_timeout), 659 le32_to_cpu(cmd->tx_data_timeout)); 660 for (i = 0; i < IWL_POWER_VEC_SIZE; i++) 661 pos += scnprintf(buf + pos, bufsz - pos, 662 "sleep_interval[%d]: %d\n", i, 663 le32_to_cpu(cmd->sleep_interval[i])); 664 665 return simple_read_from_buffer(user_buf, count, ppos, buf, pos); 666 } 667 668 DEBUGFS_READ_WRITE_FILE_OPS(sram); 669 DEBUGFS_READ_FILE_OPS(wowlan_sram); 670 DEBUGFS_READ_FILE_OPS(nvm); 671 DEBUGFS_READ_FILE_OPS(stations); 672 DEBUGFS_READ_FILE_OPS(channels); 673 DEBUGFS_READ_FILE_OPS(status); 674 DEBUGFS_READ_WRITE_FILE_OPS(rx_handlers); 675 DEBUGFS_READ_FILE_OPS(qos); 676 DEBUGFS_READ_FILE_OPS(thermal_throttling); 677 DEBUGFS_READ_WRITE_FILE_OPS(disable_ht40); 678 DEBUGFS_READ_FILE_OPS(temperature); 679 DEBUGFS_READ_WRITE_FILE_OPS(sleep_level_override); 680 DEBUGFS_READ_FILE_OPS(current_sleep_command); 681 682 #define fmt_value " %-30s %10u\n" 683 #define fmt_hex " %-30s 0x%02X\n" 684 #define fmt_table " %-30s %10u %10u %10u %10u\n" 685 #define fmt_header "%-32s current cumulative delta max\n" 686 687 static int iwl_statistics_flag(struct iwl_priv *priv, char *buf, int bufsz) 688 { 689 int p = 0; 690 u32 flag; 691 692 lockdep_assert_held(&priv->statistics.lock); 693 694 flag = le32_to_cpu(priv->statistics.flag); 695 696 p += scnprintf(buf + p, bufsz - p, "Statistics Flag(0x%X):\n", flag); 697 if (flag & UCODE_STATISTICS_CLEAR_MSK) 698 p += scnprintf(buf + p, bufsz - p, 699 "\tStatistics have been cleared\n"); 700 p += scnprintf(buf + p, bufsz - p, "\tOperational Frequency: %s\n", 701 (flag & UCODE_STATISTICS_FREQUENCY_MSK) 702 ? "2.4 GHz" : "5.2 GHz"); 703 p += scnprintf(buf + p, bufsz - p, "\tTGj Narrow Band: %s\n", 704 (flag & UCODE_STATISTICS_NARROW_BAND_MSK) 705 ? "enabled" : "disabled"); 706 707 return p; 708 } 709 710 static ssize_t iwl_dbgfs_ucode_rx_stats_read(struct file *file, 711 char __user *user_buf, 712 size_t count, loff_t *ppos) 713 { 714 struct iwl_priv *priv = file->private_data; 715 int pos = 0; 716 char *buf; 717 int bufsz = sizeof(struct statistics_rx_phy) * 40 + 718 sizeof(struct statistics_rx_non_phy) * 40 + 719 sizeof(struct statistics_rx_ht_phy) * 40 + 400; 720 ssize_t ret; 721 struct statistics_rx_phy *ofdm, *accum_ofdm, *delta_ofdm, *max_ofdm; 722 struct statistics_rx_phy *cck, *accum_cck, *delta_cck, *max_cck; 723 struct statistics_rx_non_phy *general, *accum_general; 724 struct statistics_rx_non_phy *delta_general, *max_general; 725 struct statistics_rx_ht_phy *ht, *accum_ht, *delta_ht, *max_ht; 726 727 if (!iwl_is_alive(priv)) 728 return -EAGAIN; 729 730 buf = kzalloc(bufsz, GFP_KERNEL); 731 if (!buf) 732 return -ENOMEM; 733 734 /* 735 * the statistic information display here is based on 736 * the last statistics notification from uCode 737 * might not reflect the current uCode activity 738 */ 739 spin_lock_bh(&priv->statistics.lock); 740 ofdm = &priv->statistics.rx_ofdm; 741 cck = &priv->statistics.rx_cck; 742 general = &priv->statistics.rx_non_phy; 743 ht = &priv->statistics.rx_ofdm_ht; 744 accum_ofdm = &priv->accum_stats.rx_ofdm; 745 accum_cck = &priv->accum_stats.rx_cck; 746 accum_general = &priv->accum_stats.rx_non_phy; 747 accum_ht = &priv->accum_stats.rx_ofdm_ht; 748 delta_ofdm = &priv->delta_stats.rx_ofdm; 749 delta_cck = &priv->delta_stats.rx_cck; 750 delta_general = &priv->delta_stats.rx_non_phy; 751 delta_ht = &priv->delta_stats.rx_ofdm_ht; 752 max_ofdm = &priv->max_delta_stats.rx_ofdm; 753 max_cck = &priv->max_delta_stats.rx_cck; 754 max_general = &priv->max_delta_stats.rx_non_phy; 755 max_ht = &priv->max_delta_stats.rx_ofdm_ht; 756 757 pos += iwl_statistics_flag(priv, buf, bufsz); 758 pos += scnprintf(buf + pos, bufsz - pos, 759 fmt_header, "Statistics_Rx - OFDM:"); 760 pos += scnprintf(buf + pos, bufsz - pos, 761 fmt_table, "ina_cnt:", 762 le32_to_cpu(ofdm->ina_cnt), 763 accum_ofdm->ina_cnt, 764 delta_ofdm->ina_cnt, max_ofdm->ina_cnt); 765 pos += scnprintf(buf + pos, bufsz - pos, 766 fmt_table, "fina_cnt:", 767 le32_to_cpu(ofdm->fina_cnt), accum_ofdm->fina_cnt, 768 delta_ofdm->fina_cnt, max_ofdm->fina_cnt); 769 pos += scnprintf(buf + pos, bufsz - pos, 770 fmt_table, "plcp_err:", 771 le32_to_cpu(ofdm->plcp_err), accum_ofdm->plcp_err, 772 delta_ofdm->plcp_err, max_ofdm->plcp_err); 773 pos += scnprintf(buf + pos, bufsz - pos, 774 fmt_table, "crc32_err:", 775 le32_to_cpu(ofdm->crc32_err), accum_ofdm->crc32_err, 776 delta_ofdm->crc32_err, max_ofdm->crc32_err); 777 pos += scnprintf(buf + pos, bufsz - pos, 778 fmt_table, "overrun_err:", 779 le32_to_cpu(ofdm->overrun_err), 780 accum_ofdm->overrun_err, delta_ofdm->overrun_err, 781 max_ofdm->overrun_err); 782 pos += scnprintf(buf + pos, bufsz - pos, 783 fmt_table, "early_overrun_err:", 784 le32_to_cpu(ofdm->early_overrun_err), 785 accum_ofdm->early_overrun_err, 786 delta_ofdm->early_overrun_err, 787 max_ofdm->early_overrun_err); 788 pos += scnprintf(buf + pos, bufsz - pos, 789 fmt_table, "crc32_good:", 790 le32_to_cpu(ofdm->crc32_good), 791 accum_ofdm->crc32_good, delta_ofdm->crc32_good, 792 max_ofdm->crc32_good); 793 pos += scnprintf(buf + pos, bufsz - pos, 794 fmt_table, "false_alarm_cnt:", 795 le32_to_cpu(ofdm->false_alarm_cnt), 796 accum_ofdm->false_alarm_cnt, 797 delta_ofdm->false_alarm_cnt, 798 max_ofdm->false_alarm_cnt); 799 pos += scnprintf(buf + pos, bufsz - pos, 800 fmt_table, "fina_sync_err_cnt:", 801 le32_to_cpu(ofdm->fina_sync_err_cnt), 802 accum_ofdm->fina_sync_err_cnt, 803 delta_ofdm->fina_sync_err_cnt, 804 max_ofdm->fina_sync_err_cnt); 805 pos += scnprintf(buf + pos, bufsz - pos, 806 fmt_table, "sfd_timeout:", 807 le32_to_cpu(ofdm->sfd_timeout), 808 accum_ofdm->sfd_timeout, delta_ofdm->sfd_timeout, 809 max_ofdm->sfd_timeout); 810 pos += scnprintf(buf + pos, bufsz - pos, 811 fmt_table, "fina_timeout:", 812 le32_to_cpu(ofdm->fina_timeout), 813 accum_ofdm->fina_timeout, delta_ofdm->fina_timeout, 814 max_ofdm->fina_timeout); 815 pos += scnprintf(buf + pos, bufsz - pos, 816 fmt_table, "unresponded_rts:", 817 le32_to_cpu(ofdm->unresponded_rts), 818 accum_ofdm->unresponded_rts, 819 delta_ofdm->unresponded_rts, 820 max_ofdm->unresponded_rts); 821 pos += scnprintf(buf + pos, bufsz - pos, 822 fmt_table, "rxe_frame_lmt_ovrun:", 823 le32_to_cpu(ofdm->rxe_frame_limit_overrun), 824 accum_ofdm->rxe_frame_limit_overrun, 825 delta_ofdm->rxe_frame_limit_overrun, 826 max_ofdm->rxe_frame_limit_overrun); 827 pos += scnprintf(buf + pos, bufsz - pos, 828 fmt_table, "sent_ack_cnt:", 829 le32_to_cpu(ofdm->sent_ack_cnt), 830 accum_ofdm->sent_ack_cnt, delta_ofdm->sent_ack_cnt, 831 max_ofdm->sent_ack_cnt); 832 pos += scnprintf(buf + pos, bufsz - pos, 833 fmt_table, "sent_cts_cnt:", 834 le32_to_cpu(ofdm->sent_cts_cnt), 835 accum_ofdm->sent_cts_cnt, delta_ofdm->sent_cts_cnt, 836 max_ofdm->sent_cts_cnt); 837 pos += scnprintf(buf + pos, bufsz - pos, 838 fmt_table, "sent_ba_rsp_cnt:", 839 le32_to_cpu(ofdm->sent_ba_rsp_cnt), 840 accum_ofdm->sent_ba_rsp_cnt, 841 delta_ofdm->sent_ba_rsp_cnt, 842 max_ofdm->sent_ba_rsp_cnt); 843 pos += scnprintf(buf + pos, bufsz - pos, 844 fmt_table, "dsp_self_kill:", 845 le32_to_cpu(ofdm->dsp_self_kill), 846 accum_ofdm->dsp_self_kill, 847 delta_ofdm->dsp_self_kill, 848 max_ofdm->dsp_self_kill); 849 pos += scnprintf(buf + pos, bufsz - pos, 850 fmt_table, "mh_format_err:", 851 le32_to_cpu(ofdm->mh_format_err), 852 accum_ofdm->mh_format_err, 853 delta_ofdm->mh_format_err, 854 max_ofdm->mh_format_err); 855 pos += scnprintf(buf + pos, bufsz - pos, 856 fmt_table, "re_acq_main_rssi_sum:", 857 le32_to_cpu(ofdm->re_acq_main_rssi_sum), 858 accum_ofdm->re_acq_main_rssi_sum, 859 delta_ofdm->re_acq_main_rssi_sum, 860 max_ofdm->re_acq_main_rssi_sum); 861 862 pos += scnprintf(buf + pos, bufsz - pos, 863 fmt_header, "Statistics_Rx - CCK:"); 864 pos += scnprintf(buf + pos, bufsz - pos, 865 fmt_table, "ina_cnt:", 866 le32_to_cpu(cck->ina_cnt), accum_cck->ina_cnt, 867 delta_cck->ina_cnt, max_cck->ina_cnt); 868 pos += scnprintf(buf + pos, bufsz - pos, 869 fmt_table, "fina_cnt:", 870 le32_to_cpu(cck->fina_cnt), accum_cck->fina_cnt, 871 delta_cck->fina_cnt, max_cck->fina_cnt); 872 pos += scnprintf(buf + pos, bufsz - pos, 873 fmt_table, "plcp_err:", 874 le32_to_cpu(cck->plcp_err), accum_cck->plcp_err, 875 delta_cck->plcp_err, max_cck->plcp_err); 876 pos += scnprintf(buf + pos, bufsz - pos, 877 fmt_table, "crc32_err:", 878 le32_to_cpu(cck->crc32_err), accum_cck->crc32_err, 879 delta_cck->crc32_err, max_cck->crc32_err); 880 pos += scnprintf(buf + pos, bufsz - pos, 881 fmt_table, "overrun_err:", 882 le32_to_cpu(cck->overrun_err), 883 accum_cck->overrun_err, delta_cck->overrun_err, 884 max_cck->overrun_err); 885 pos += scnprintf(buf + pos, bufsz - pos, 886 fmt_table, "early_overrun_err:", 887 le32_to_cpu(cck->early_overrun_err), 888 accum_cck->early_overrun_err, 889 delta_cck->early_overrun_err, 890 max_cck->early_overrun_err); 891 pos += scnprintf(buf + pos, bufsz - pos, 892 fmt_table, "crc32_good:", 893 le32_to_cpu(cck->crc32_good), accum_cck->crc32_good, 894 delta_cck->crc32_good, max_cck->crc32_good); 895 pos += scnprintf(buf + pos, bufsz - pos, 896 fmt_table, "false_alarm_cnt:", 897 le32_to_cpu(cck->false_alarm_cnt), 898 accum_cck->false_alarm_cnt, 899 delta_cck->false_alarm_cnt, max_cck->false_alarm_cnt); 900 pos += scnprintf(buf + pos, bufsz - pos, 901 fmt_table, "fina_sync_err_cnt:", 902 le32_to_cpu(cck->fina_sync_err_cnt), 903 accum_cck->fina_sync_err_cnt, 904 delta_cck->fina_sync_err_cnt, 905 max_cck->fina_sync_err_cnt); 906 pos += scnprintf(buf + pos, bufsz - pos, 907 fmt_table, "sfd_timeout:", 908 le32_to_cpu(cck->sfd_timeout), 909 accum_cck->sfd_timeout, delta_cck->sfd_timeout, 910 max_cck->sfd_timeout); 911 pos += scnprintf(buf + pos, bufsz - pos, 912 fmt_table, "fina_timeout:", 913 le32_to_cpu(cck->fina_timeout), 914 accum_cck->fina_timeout, delta_cck->fina_timeout, 915 max_cck->fina_timeout); 916 pos += scnprintf(buf + pos, bufsz - pos, 917 fmt_table, "unresponded_rts:", 918 le32_to_cpu(cck->unresponded_rts), 919 accum_cck->unresponded_rts, delta_cck->unresponded_rts, 920 max_cck->unresponded_rts); 921 pos += scnprintf(buf + pos, bufsz - pos, 922 fmt_table, "rxe_frame_lmt_ovrun:", 923 le32_to_cpu(cck->rxe_frame_limit_overrun), 924 accum_cck->rxe_frame_limit_overrun, 925 delta_cck->rxe_frame_limit_overrun, 926 max_cck->rxe_frame_limit_overrun); 927 pos += scnprintf(buf + pos, bufsz - pos, 928 fmt_table, "sent_ack_cnt:", 929 le32_to_cpu(cck->sent_ack_cnt), 930 accum_cck->sent_ack_cnt, delta_cck->sent_ack_cnt, 931 max_cck->sent_ack_cnt); 932 pos += scnprintf(buf + pos, bufsz - pos, 933 fmt_table, "sent_cts_cnt:", 934 le32_to_cpu(cck->sent_cts_cnt), 935 accum_cck->sent_cts_cnt, delta_cck->sent_cts_cnt, 936 max_cck->sent_cts_cnt); 937 pos += scnprintf(buf + pos, bufsz - pos, 938 fmt_table, "sent_ba_rsp_cnt:", 939 le32_to_cpu(cck->sent_ba_rsp_cnt), 940 accum_cck->sent_ba_rsp_cnt, 941 delta_cck->sent_ba_rsp_cnt, 942 max_cck->sent_ba_rsp_cnt); 943 pos += scnprintf(buf + pos, bufsz - pos, 944 fmt_table, "dsp_self_kill:", 945 le32_to_cpu(cck->dsp_self_kill), 946 accum_cck->dsp_self_kill, delta_cck->dsp_self_kill, 947 max_cck->dsp_self_kill); 948 pos += scnprintf(buf + pos, bufsz - pos, 949 fmt_table, "mh_format_err:", 950 le32_to_cpu(cck->mh_format_err), 951 accum_cck->mh_format_err, delta_cck->mh_format_err, 952 max_cck->mh_format_err); 953 pos += scnprintf(buf + pos, bufsz - pos, 954 fmt_table, "re_acq_main_rssi_sum:", 955 le32_to_cpu(cck->re_acq_main_rssi_sum), 956 accum_cck->re_acq_main_rssi_sum, 957 delta_cck->re_acq_main_rssi_sum, 958 max_cck->re_acq_main_rssi_sum); 959 960 pos += scnprintf(buf + pos, bufsz - pos, 961 fmt_header, "Statistics_Rx - GENERAL:"); 962 pos += scnprintf(buf + pos, bufsz - pos, 963 fmt_table, "bogus_cts:", 964 le32_to_cpu(general->bogus_cts), 965 accum_general->bogus_cts, delta_general->bogus_cts, 966 max_general->bogus_cts); 967 pos += scnprintf(buf + pos, bufsz - pos, 968 fmt_table, "bogus_ack:", 969 le32_to_cpu(general->bogus_ack), 970 accum_general->bogus_ack, delta_general->bogus_ack, 971 max_general->bogus_ack); 972 pos += scnprintf(buf + pos, bufsz - pos, 973 fmt_table, "non_bssid_frames:", 974 le32_to_cpu(general->non_bssid_frames), 975 accum_general->non_bssid_frames, 976 delta_general->non_bssid_frames, 977 max_general->non_bssid_frames); 978 pos += scnprintf(buf + pos, bufsz - pos, 979 fmt_table, "filtered_frames:", 980 le32_to_cpu(general->filtered_frames), 981 accum_general->filtered_frames, 982 delta_general->filtered_frames, 983 max_general->filtered_frames); 984 pos += scnprintf(buf + pos, bufsz - pos, 985 fmt_table, "non_channel_beacons:", 986 le32_to_cpu(general->non_channel_beacons), 987 accum_general->non_channel_beacons, 988 delta_general->non_channel_beacons, 989 max_general->non_channel_beacons); 990 pos += scnprintf(buf + pos, bufsz - pos, 991 fmt_table, "channel_beacons:", 992 le32_to_cpu(general->channel_beacons), 993 accum_general->channel_beacons, 994 delta_general->channel_beacons, 995 max_general->channel_beacons); 996 pos += scnprintf(buf + pos, bufsz - pos, 997 fmt_table, "num_missed_bcon:", 998 le32_to_cpu(general->num_missed_bcon), 999 accum_general->num_missed_bcon, 1000 delta_general->num_missed_bcon, 1001 max_general->num_missed_bcon); 1002 pos += scnprintf(buf + pos, bufsz - pos, 1003 fmt_table, "adc_rx_saturation_time:", 1004 le32_to_cpu(general->adc_rx_saturation_time), 1005 accum_general->adc_rx_saturation_time, 1006 delta_general->adc_rx_saturation_time, 1007 max_general->adc_rx_saturation_time); 1008 pos += scnprintf(buf + pos, bufsz - pos, 1009 fmt_table, "ina_detect_search_tm:", 1010 le32_to_cpu(general->ina_detection_search_time), 1011 accum_general->ina_detection_search_time, 1012 delta_general->ina_detection_search_time, 1013 max_general->ina_detection_search_time); 1014 pos += scnprintf(buf + pos, bufsz - pos, 1015 fmt_table, "beacon_silence_rssi_a:", 1016 le32_to_cpu(general->beacon_silence_rssi_a), 1017 accum_general->beacon_silence_rssi_a, 1018 delta_general->beacon_silence_rssi_a, 1019 max_general->beacon_silence_rssi_a); 1020 pos += scnprintf(buf + pos, bufsz - pos, 1021 fmt_table, "beacon_silence_rssi_b:", 1022 le32_to_cpu(general->beacon_silence_rssi_b), 1023 accum_general->beacon_silence_rssi_b, 1024 delta_general->beacon_silence_rssi_b, 1025 max_general->beacon_silence_rssi_b); 1026 pos += scnprintf(buf + pos, bufsz - pos, 1027 fmt_table, "beacon_silence_rssi_c:", 1028 le32_to_cpu(general->beacon_silence_rssi_c), 1029 accum_general->beacon_silence_rssi_c, 1030 delta_general->beacon_silence_rssi_c, 1031 max_general->beacon_silence_rssi_c); 1032 pos += scnprintf(buf + pos, bufsz - pos, 1033 fmt_table, "interference_data_flag:", 1034 le32_to_cpu(general->interference_data_flag), 1035 accum_general->interference_data_flag, 1036 delta_general->interference_data_flag, 1037 max_general->interference_data_flag); 1038 pos += scnprintf(buf + pos, bufsz - pos, 1039 fmt_table, "channel_load:", 1040 le32_to_cpu(general->channel_load), 1041 accum_general->channel_load, 1042 delta_general->channel_load, 1043 max_general->channel_load); 1044 pos += scnprintf(buf + pos, bufsz - pos, 1045 fmt_table, "dsp_false_alarms:", 1046 le32_to_cpu(general->dsp_false_alarms), 1047 accum_general->dsp_false_alarms, 1048 delta_general->dsp_false_alarms, 1049 max_general->dsp_false_alarms); 1050 pos += scnprintf(buf + pos, bufsz - pos, 1051 fmt_table, "beacon_rssi_a:", 1052 le32_to_cpu(general->beacon_rssi_a), 1053 accum_general->beacon_rssi_a, 1054 delta_general->beacon_rssi_a, 1055 max_general->beacon_rssi_a); 1056 pos += scnprintf(buf + pos, bufsz - pos, 1057 fmt_table, "beacon_rssi_b:", 1058 le32_to_cpu(general->beacon_rssi_b), 1059 accum_general->beacon_rssi_b, 1060 delta_general->beacon_rssi_b, 1061 max_general->beacon_rssi_b); 1062 pos += scnprintf(buf + pos, bufsz - pos, 1063 fmt_table, "beacon_rssi_c:", 1064 le32_to_cpu(general->beacon_rssi_c), 1065 accum_general->beacon_rssi_c, 1066 delta_general->beacon_rssi_c, 1067 max_general->beacon_rssi_c); 1068 pos += scnprintf(buf + pos, bufsz - pos, 1069 fmt_table, "beacon_energy_a:", 1070 le32_to_cpu(general->beacon_energy_a), 1071 accum_general->beacon_energy_a, 1072 delta_general->beacon_energy_a, 1073 max_general->beacon_energy_a); 1074 pos += scnprintf(buf + pos, bufsz - pos, 1075 fmt_table, "beacon_energy_b:", 1076 le32_to_cpu(general->beacon_energy_b), 1077 accum_general->beacon_energy_b, 1078 delta_general->beacon_energy_b, 1079 max_general->beacon_energy_b); 1080 pos += scnprintf(buf + pos, bufsz - pos, 1081 fmt_table, "beacon_energy_c:", 1082 le32_to_cpu(general->beacon_energy_c), 1083 accum_general->beacon_energy_c, 1084 delta_general->beacon_energy_c, 1085 max_general->beacon_energy_c); 1086 1087 pos += scnprintf(buf + pos, bufsz - pos, 1088 fmt_header, "Statistics_Rx - OFDM_HT:"); 1089 pos += scnprintf(buf + pos, bufsz - pos, 1090 fmt_table, "plcp_err:", 1091 le32_to_cpu(ht->plcp_err), accum_ht->plcp_err, 1092 delta_ht->plcp_err, max_ht->plcp_err); 1093 pos += scnprintf(buf + pos, bufsz - pos, 1094 fmt_table, "overrun_err:", 1095 le32_to_cpu(ht->overrun_err), accum_ht->overrun_err, 1096 delta_ht->overrun_err, max_ht->overrun_err); 1097 pos += scnprintf(buf + pos, bufsz - pos, 1098 fmt_table, "early_overrun_err:", 1099 le32_to_cpu(ht->early_overrun_err), 1100 accum_ht->early_overrun_err, 1101 delta_ht->early_overrun_err, 1102 max_ht->early_overrun_err); 1103 pos += scnprintf(buf + pos, bufsz - pos, 1104 fmt_table, "crc32_good:", 1105 le32_to_cpu(ht->crc32_good), accum_ht->crc32_good, 1106 delta_ht->crc32_good, max_ht->crc32_good); 1107 pos += scnprintf(buf + pos, bufsz - pos, 1108 fmt_table, "crc32_err:", 1109 le32_to_cpu(ht->crc32_err), accum_ht->crc32_err, 1110 delta_ht->crc32_err, max_ht->crc32_err); 1111 pos += scnprintf(buf + pos, bufsz - pos, 1112 fmt_table, "mh_format_err:", 1113 le32_to_cpu(ht->mh_format_err), 1114 accum_ht->mh_format_err, 1115 delta_ht->mh_format_err, max_ht->mh_format_err); 1116 pos += scnprintf(buf + pos, bufsz - pos, 1117 fmt_table, "agg_crc32_good:", 1118 le32_to_cpu(ht->agg_crc32_good), 1119 accum_ht->agg_crc32_good, 1120 delta_ht->agg_crc32_good, max_ht->agg_crc32_good); 1121 pos += scnprintf(buf + pos, bufsz - pos, 1122 fmt_table, "agg_mpdu_cnt:", 1123 le32_to_cpu(ht->agg_mpdu_cnt), 1124 accum_ht->agg_mpdu_cnt, 1125 delta_ht->agg_mpdu_cnt, max_ht->agg_mpdu_cnt); 1126 pos += scnprintf(buf + pos, bufsz - pos, 1127 fmt_table, "agg_cnt:", 1128 le32_to_cpu(ht->agg_cnt), accum_ht->agg_cnt, 1129 delta_ht->agg_cnt, max_ht->agg_cnt); 1130 pos += scnprintf(buf + pos, bufsz - pos, 1131 fmt_table, "unsupport_mcs:", 1132 le32_to_cpu(ht->unsupport_mcs), 1133 accum_ht->unsupport_mcs, 1134 delta_ht->unsupport_mcs, max_ht->unsupport_mcs); 1135 1136 spin_unlock_bh(&priv->statistics.lock); 1137 1138 ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos); 1139 kfree(buf); 1140 return ret; 1141 } 1142 1143 static ssize_t iwl_dbgfs_ucode_tx_stats_read(struct file *file, 1144 char __user *user_buf, 1145 size_t count, loff_t *ppos) 1146 { 1147 struct iwl_priv *priv = file->private_data; 1148 int pos = 0; 1149 char *buf; 1150 int bufsz = (sizeof(struct statistics_tx) * 48) + 250; 1151 ssize_t ret; 1152 struct statistics_tx *tx, *accum_tx, *delta_tx, *max_tx; 1153 1154 if (!iwl_is_alive(priv)) 1155 return -EAGAIN; 1156 1157 buf = kzalloc(bufsz, GFP_KERNEL); 1158 if (!buf) 1159 return -ENOMEM; 1160 1161 /* the statistic information display here is based on 1162 * the last statistics notification from uCode 1163 * might not reflect the current uCode activity 1164 */ 1165 spin_lock_bh(&priv->statistics.lock); 1166 1167 tx = &priv->statistics.tx; 1168 accum_tx = &priv->accum_stats.tx; 1169 delta_tx = &priv->delta_stats.tx; 1170 max_tx = &priv->max_delta_stats.tx; 1171 1172 pos += iwl_statistics_flag(priv, buf, bufsz); 1173 pos += scnprintf(buf + pos, bufsz - pos, 1174 fmt_header, "Statistics_Tx:"); 1175 pos += scnprintf(buf + pos, bufsz - pos, 1176 fmt_table, "preamble:", 1177 le32_to_cpu(tx->preamble_cnt), 1178 accum_tx->preamble_cnt, 1179 delta_tx->preamble_cnt, max_tx->preamble_cnt); 1180 pos += scnprintf(buf + pos, bufsz - pos, 1181 fmt_table, "rx_detected_cnt:", 1182 le32_to_cpu(tx->rx_detected_cnt), 1183 accum_tx->rx_detected_cnt, 1184 delta_tx->rx_detected_cnt, max_tx->rx_detected_cnt); 1185 pos += scnprintf(buf + pos, bufsz - pos, 1186 fmt_table, "bt_prio_defer_cnt:", 1187 le32_to_cpu(tx->bt_prio_defer_cnt), 1188 accum_tx->bt_prio_defer_cnt, 1189 delta_tx->bt_prio_defer_cnt, 1190 max_tx->bt_prio_defer_cnt); 1191 pos += scnprintf(buf + pos, bufsz - pos, 1192 fmt_table, "bt_prio_kill_cnt:", 1193 le32_to_cpu(tx->bt_prio_kill_cnt), 1194 accum_tx->bt_prio_kill_cnt, 1195 delta_tx->bt_prio_kill_cnt, 1196 max_tx->bt_prio_kill_cnt); 1197 pos += scnprintf(buf + pos, bufsz - pos, 1198 fmt_table, "few_bytes_cnt:", 1199 le32_to_cpu(tx->few_bytes_cnt), 1200 accum_tx->few_bytes_cnt, 1201 delta_tx->few_bytes_cnt, max_tx->few_bytes_cnt); 1202 pos += scnprintf(buf + pos, bufsz - pos, 1203 fmt_table, "cts_timeout:", 1204 le32_to_cpu(tx->cts_timeout), accum_tx->cts_timeout, 1205 delta_tx->cts_timeout, max_tx->cts_timeout); 1206 pos += scnprintf(buf + pos, bufsz - pos, 1207 fmt_table, "ack_timeout:", 1208 le32_to_cpu(tx->ack_timeout), 1209 accum_tx->ack_timeout, 1210 delta_tx->ack_timeout, max_tx->ack_timeout); 1211 pos += scnprintf(buf + pos, bufsz - pos, 1212 fmt_table, "expected_ack_cnt:", 1213 le32_to_cpu(tx->expected_ack_cnt), 1214 accum_tx->expected_ack_cnt, 1215 delta_tx->expected_ack_cnt, 1216 max_tx->expected_ack_cnt); 1217 pos += scnprintf(buf + pos, bufsz - pos, 1218 fmt_table, "actual_ack_cnt:", 1219 le32_to_cpu(tx->actual_ack_cnt), 1220 accum_tx->actual_ack_cnt, 1221 delta_tx->actual_ack_cnt, 1222 max_tx->actual_ack_cnt); 1223 pos += scnprintf(buf + pos, bufsz - pos, 1224 fmt_table, "dump_msdu_cnt:", 1225 le32_to_cpu(tx->dump_msdu_cnt), 1226 accum_tx->dump_msdu_cnt, 1227 delta_tx->dump_msdu_cnt, 1228 max_tx->dump_msdu_cnt); 1229 pos += scnprintf(buf + pos, bufsz - pos, 1230 fmt_table, "abort_nxt_frame_mismatch:", 1231 le32_to_cpu(tx->burst_abort_next_frame_mismatch_cnt), 1232 accum_tx->burst_abort_next_frame_mismatch_cnt, 1233 delta_tx->burst_abort_next_frame_mismatch_cnt, 1234 max_tx->burst_abort_next_frame_mismatch_cnt); 1235 pos += scnprintf(buf + pos, bufsz - pos, 1236 fmt_table, "abort_missing_nxt_frame:", 1237 le32_to_cpu(tx->burst_abort_missing_next_frame_cnt), 1238 accum_tx->burst_abort_missing_next_frame_cnt, 1239 delta_tx->burst_abort_missing_next_frame_cnt, 1240 max_tx->burst_abort_missing_next_frame_cnt); 1241 pos += scnprintf(buf + pos, bufsz - pos, 1242 fmt_table, "cts_timeout_collision:", 1243 le32_to_cpu(tx->cts_timeout_collision), 1244 accum_tx->cts_timeout_collision, 1245 delta_tx->cts_timeout_collision, 1246 max_tx->cts_timeout_collision); 1247 pos += scnprintf(buf + pos, bufsz - pos, 1248 fmt_table, "ack_ba_timeout_collision:", 1249 le32_to_cpu(tx->ack_or_ba_timeout_collision), 1250 accum_tx->ack_or_ba_timeout_collision, 1251 delta_tx->ack_or_ba_timeout_collision, 1252 max_tx->ack_or_ba_timeout_collision); 1253 pos += scnprintf(buf + pos, bufsz - pos, 1254 fmt_table, "agg ba_timeout:", 1255 le32_to_cpu(tx->agg.ba_timeout), 1256 accum_tx->agg.ba_timeout, 1257 delta_tx->agg.ba_timeout, 1258 max_tx->agg.ba_timeout); 1259 pos += scnprintf(buf + pos, bufsz - pos, 1260 fmt_table, "agg ba_resched_frames:", 1261 le32_to_cpu(tx->agg.ba_reschedule_frames), 1262 accum_tx->agg.ba_reschedule_frames, 1263 delta_tx->agg.ba_reschedule_frames, 1264 max_tx->agg.ba_reschedule_frames); 1265 pos += scnprintf(buf + pos, bufsz - pos, 1266 fmt_table, "agg scd_query_agg_frame:", 1267 le32_to_cpu(tx->agg.scd_query_agg_frame_cnt), 1268 accum_tx->agg.scd_query_agg_frame_cnt, 1269 delta_tx->agg.scd_query_agg_frame_cnt, 1270 max_tx->agg.scd_query_agg_frame_cnt); 1271 pos += scnprintf(buf + pos, bufsz - pos, 1272 fmt_table, "agg scd_query_no_agg:", 1273 le32_to_cpu(tx->agg.scd_query_no_agg), 1274 accum_tx->agg.scd_query_no_agg, 1275 delta_tx->agg.scd_query_no_agg, 1276 max_tx->agg.scd_query_no_agg); 1277 pos += scnprintf(buf + pos, bufsz - pos, 1278 fmt_table, "agg scd_query_agg:", 1279 le32_to_cpu(tx->agg.scd_query_agg), 1280 accum_tx->agg.scd_query_agg, 1281 delta_tx->agg.scd_query_agg, 1282 max_tx->agg.scd_query_agg); 1283 pos += scnprintf(buf + pos, bufsz - pos, 1284 fmt_table, "agg scd_query_mismatch:", 1285 le32_to_cpu(tx->agg.scd_query_mismatch), 1286 accum_tx->agg.scd_query_mismatch, 1287 delta_tx->agg.scd_query_mismatch, 1288 max_tx->agg.scd_query_mismatch); 1289 pos += scnprintf(buf + pos, bufsz - pos, 1290 fmt_table, "agg frame_not_ready:", 1291 le32_to_cpu(tx->agg.frame_not_ready), 1292 accum_tx->agg.frame_not_ready, 1293 delta_tx->agg.frame_not_ready, 1294 max_tx->agg.frame_not_ready); 1295 pos += scnprintf(buf + pos, bufsz - pos, 1296 fmt_table, "agg underrun:", 1297 le32_to_cpu(tx->agg.underrun), 1298 accum_tx->agg.underrun, 1299 delta_tx->agg.underrun, max_tx->agg.underrun); 1300 pos += scnprintf(buf + pos, bufsz - pos, 1301 fmt_table, "agg bt_prio_kill:", 1302 le32_to_cpu(tx->agg.bt_prio_kill), 1303 accum_tx->agg.bt_prio_kill, 1304 delta_tx->agg.bt_prio_kill, 1305 max_tx->agg.bt_prio_kill); 1306 pos += scnprintf(buf + pos, bufsz - pos, 1307 fmt_table, "agg rx_ba_rsp_cnt:", 1308 le32_to_cpu(tx->agg.rx_ba_rsp_cnt), 1309 accum_tx->agg.rx_ba_rsp_cnt, 1310 delta_tx->agg.rx_ba_rsp_cnt, 1311 max_tx->agg.rx_ba_rsp_cnt); 1312 1313 if (tx->tx_power.ant_a || tx->tx_power.ant_b || tx->tx_power.ant_c) { 1314 pos += scnprintf(buf + pos, bufsz - pos, 1315 "tx power: (1/2 dB step)\n"); 1316 if ((priv->nvm_data->valid_tx_ant & ANT_A) && 1317 tx->tx_power.ant_a) 1318 pos += scnprintf(buf + pos, bufsz - pos, 1319 fmt_hex, "antenna A:", 1320 tx->tx_power.ant_a); 1321 if ((priv->nvm_data->valid_tx_ant & ANT_B) && 1322 tx->tx_power.ant_b) 1323 pos += scnprintf(buf + pos, bufsz - pos, 1324 fmt_hex, "antenna B:", 1325 tx->tx_power.ant_b); 1326 if ((priv->nvm_data->valid_tx_ant & ANT_C) && 1327 tx->tx_power.ant_c) 1328 pos += scnprintf(buf + pos, bufsz - pos, 1329 fmt_hex, "antenna C:", 1330 tx->tx_power.ant_c); 1331 } 1332 1333 spin_unlock_bh(&priv->statistics.lock); 1334 1335 ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos); 1336 kfree(buf); 1337 return ret; 1338 } 1339 1340 static ssize_t iwl_dbgfs_ucode_general_stats_read(struct file *file, 1341 char __user *user_buf, 1342 size_t count, loff_t *ppos) 1343 { 1344 struct iwl_priv *priv = file->private_data; 1345 int pos = 0; 1346 char *buf; 1347 int bufsz = sizeof(struct statistics_general) * 10 + 300; 1348 ssize_t ret; 1349 struct statistics_general_common *general, *accum_general; 1350 struct statistics_general_common *delta_general, *max_general; 1351 struct statistics_dbg *dbg, *accum_dbg, *delta_dbg, *max_dbg; 1352 struct statistics_div *div, *accum_div, *delta_div, *max_div; 1353 1354 if (!iwl_is_alive(priv)) 1355 return -EAGAIN; 1356 1357 buf = kzalloc(bufsz, GFP_KERNEL); 1358 if (!buf) 1359 return -ENOMEM; 1360 1361 /* the statistic information display here is based on 1362 * the last statistics notification from uCode 1363 * might not reflect the current uCode activity 1364 */ 1365 1366 spin_lock_bh(&priv->statistics.lock); 1367 1368 general = &priv->statistics.common; 1369 dbg = &priv->statistics.common.dbg; 1370 div = &priv->statistics.common.div; 1371 accum_general = &priv->accum_stats.common; 1372 accum_dbg = &priv->accum_stats.common.dbg; 1373 accum_div = &priv->accum_stats.common.div; 1374 delta_general = &priv->delta_stats.common; 1375 max_general = &priv->max_delta_stats.common; 1376 delta_dbg = &priv->delta_stats.common.dbg; 1377 max_dbg = &priv->max_delta_stats.common.dbg; 1378 delta_div = &priv->delta_stats.common.div; 1379 max_div = &priv->max_delta_stats.common.div; 1380 1381 pos += iwl_statistics_flag(priv, buf, bufsz); 1382 pos += scnprintf(buf + pos, bufsz - pos, 1383 fmt_header, "Statistics_General:"); 1384 pos += scnprintf(buf + pos, bufsz - pos, 1385 fmt_value, "temperature:", 1386 le32_to_cpu(general->temperature)); 1387 pos += scnprintf(buf + pos, bufsz - pos, 1388 fmt_value, "temperature_m:", 1389 le32_to_cpu(general->temperature_m)); 1390 pos += scnprintf(buf + pos, bufsz - pos, 1391 fmt_value, "ttl_timestamp:", 1392 le32_to_cpu(general->ttl_timestamp)); 1393 pos += scnprintf(buf + pos, bufsz - pos, 1394 fmt_table, "burst_check:", 1395 le32_to_cpu(dbg->burst_check), 1396 accum_dbg->burst_check, 1397 delta_dbg->burst_check, max_dbg->burst_check); 1398 pos += scnprintf(buf + pos, bufsz - pos, 1399 fmt_table, "burst_count:", 1400 le32_to_cpu(dbg->burst_count), 1401 accum_dbg->burst_count, 1402 delta_dbg->burst_count, max_dbg->burst_count); 1403 pos += scnprintf(buf + pos, bufsz - pos, 1404 fmt_table, "wait_for_silence_timeout_count:", 1405 le32_to_cpu(dbg->wait_for_silence_timeout_cnt), 1406 accum_dbg->wait_for_silence_timeout_cnt, 1407 delta_dbg->wait_for_silence_timeout_cnt, 1408 max_dbg->wait_for_silence_timeout_cnt); 1409 pos += scnprintf(buf + pos, bufsz - pos, 1410 fmt_table, "sleep_time:", 1411 le32_to_cpu(general->sleep_time), 1412 accum_general->sleep_time, 1413 delta_general->sleep_time, max_general->sleep_time); 1414 pos += scnprintf(buf + pos, bufsz - pos, 1415 fmt_table, "slots_out:", 1416 le32_to_cpu(general->slots_out), 1417 accum_general->slots_out, 1418 delta_general->slots_out, max_general->slots_out); 1419 pos += scnprintf(buf + pos, bufsz - pos, 1420 fmt_table, "slots_idle:", 1421 le32_to_cpu(general->slots_idle), 1422 accum_general->slots_idle, 1423 delta_general->slots_idle, max_general->slots_idle); 1424 pos += scnprintf(buf + pos, bufsz - pos, 1425 fmt_table, "tx_on_a:", 1426 le32_to_cpu(div->tx_on_a), accum_div->tx_on_a, 1427 delta_div->tx_on_a, max_div->tx_on_a); 1428 pos += scnprintf(buf + pos, bufsz - pos, 1429 fmt_table, "tx_on_b:", 1430 le32_to_cpu(div->tx_on_b), accum_div->tx_on_b, 1431 delta_div->tx_on_b, max_div->tx_on_b); 1432 pos += scnprintf(buf + pos, bufsz - pos, 1433 fmt_table, "exec_time:", 1434 le32_to_cpu(div->exec_time), accum_div->exec_time, 1435 delta_div->exec_time, max_div->exec_time); 1436 pos += scnprintf(buf + pos, bufsz - pos, 1437 fmt_table, "probe_time:", 1438 le32_to_cpu(div->probe_time), accum_div->probe_time, 1439 delta_div->probe_time, max_div->probe_time); 1440 pos += scnprintf(buf + pos, bufsz - pos, 1441 fmt_table, "rx_enable_counter:", 1442 le32_to_cpu(general->rx_enable_counter), 1443 accum_general->rx_enable_counter, 1444 delta_general->rx_enable_counter, 1445 max_general->rx_enable_counter); 1446 pos += scnprintf(buf + pos, bufsz - pos, 1447 fmt_table, "num_of_sos_states:", 1448 le32_to_cpu(general->num_of_sos_states), 1449 accum_general->num_of_sos_states, 1450 delta_general->num_of_sos_states, 1451 max_general->num_of_sos_states); 1452 1453 spin_unlock_bh(&priv->statistics.lock); 1454 1455 ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos); 1456 kfree(buf); 1457 return ret; 1458 } 1459 1460 static ssize_t iwl_dbgfs_ucode_bt_stats_read(struct file *file, 1461 char __user *user_buf, 1462 size_t count, loff_t *ppos) 1463 { 1464 struct iwl_priv *priv = (struct iwl_priv *)file->private_data; 1465 int pos = 0; 1466 char *buf; 1467 int bufsz = (sizeof(struct statistics_bt_activity) * 24) + 200; 1468 ssize_t ret; 1469 struct statistics_bt_activity *bt, *accum_bt; 1470 1471 if (!iwl_is_alive(priv)) 1472 return -EAGAIN; 1473 1474 if (!priv->bt_enable_flag) 1475 return -EINVAL; 1476 1477 /* make request to uCode to retrieve statistics information */ 1478 mutex_lock(&priv->mutex); 1479 ret = iwl_send_statistics_request(priv, 0, false); 1480 mutex_unlock(&priv->mutex); 1481 1482 if (ret) 1483 return -EAGAIN; 1484 buf = kzalloc(bufsz, GFP_KERNEL); 1485 if (!buf) 1486 return -ENOMEM; 1487 1488 /* 1489 * the statistic information display here is based on 1490 * the last statistics notification from uCode 1491 * might not reflect the current uCode activity 1492 */ 1493 1494 spin_lock_bh(&priv->statistics.lock); 1495 1496 bt = &priv->statistics.bt_activity; 1497 accum_bt = &priv->accum_stats.bt_activity; 1498 1499 pos += iwl_statistics_flag(priv, buf, bufsz); 1500 pos += scnprintf(buf + pos, bufsz - pos, "Statistics_BT:\n"); 1501 pos += scnprintf(buf + pos, bufsz - pos, 1502 "\t\t\tcurrent\t\t\taccumulative\n"); 1503 pos += scnprintf(buf + pos, bufsz - pos, 1504 "hi_priority_tx_req_cnt:\t\t%u\t\t\t%u\n", 1505 le32_to_cpu(bt->hi_priority_tx_req_cnt), 1506 accum_bt->hi_priority_tx_req_cnt); 1507 pos += scnprintf(buf + pos, bufsz - pos, 1508 "hi_priority_tx_denied_cnt:\t%u\t\t\t%u\n", 1509 le32_to_cpu(bt->hi_priority_tx_denied_cnt), 1510 accum_bt->hi_priority_tx_denied_cnt); 1511 pos += scnprintf(buf + pos, bufsz - pos, 1512 "lo_priority_tx_req_cnt:\t\t%u\t\t\t%u\n", 1513 le32_to_cpu(bt->lo_priority_tx_req_cnt), 1514 accum_bt->lo_priority_tx_req_cnt); 1515 pos += scnprintf(buf + pos, bufsz - pos, 1516 "lo_priority_tx_denied_cnt:\t%u\t\t\t%u\n", 1517 le32_to_cpu(bt->lo_priority_tx_denied_cnt), 1518 accum_bt->lo_priority_tx_denied_cnt); 1519 pos += scnprintf(buf + pos, bufsz - pos, 1520 "hi_priority_rx_req_cnt:\t\t%u\t\t\t%u\n", 1521 le32_to_cpu(bt->hi_priority_rx_req_cnt), 1522 accum_bt->hi_priority_rx_req_cnt); 1523 pos += scnprintf(buf + pos, bufsz - pos, 1524 "hi_priority_rx_denied_cnt:\t%u\t\t\t%u\n", 1525 le32_to_cpu(bt->hi_priority_rx_denied_cnt), 1526 accum_bt->hi_priority_rx_denied_cnt); 1527 pos += scnprintf(buf + pos, bufsz - pos, 1528 "lo_priority_rx_req_cnt:\t\t%u\t\t\t%u\n", 1529 le32_to_cpu(bt->lo_priority_rx_req_cnt), 1530 accum_bt->lo_priority_rx_req_cnt); 1531 pos += scnprintf(buf + pos, bufsz - pos, 1532 "lo_priority_rx_denied_cnt:\t%u\t\t\t%u\n", 1533 le32_to_cpu(bt->lo_priority_rx_denied_cnt), 1534 accum_bt->lo_priority_rx_denied_cnt); 1535 1536 pos += scnprintf(buf + pos, bufsz - pos, 1537 "(rx)num_bt_kills:\t\t%u\t\t\t%u\n", 1538 le32_to_cpu(priv->statistics.num_bt_kills), 1539 priv->statistics.accum_num_bt_kills); 1540 1541 spin_unlock_bh(&priv->statistics.lock); 1542 1543 ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos); 1544 kfree(buf); 1545 return ret; 1546 } 1547 1548 static ssize_t iwl_dbgfs_reply_tx_error_read(struct file *file, 1549 char __user *user_buf, 1550 size_t count, loff_t *ppos) 1551 { 1552 struct iwl_priv *priv = (struct iwl_priv *)file->private_data; 1553 int pos = 0; 1554 char *buf; 1555 int bufsz = (sizeof(struct reply_tx_error_statistics) * 24) + 1556 (sizeof(struct reply_agg_tx_error_statistics) * 24) + 200; 1557 ssize_t ret; 1558 1559 if (!iwl_is_alive(priv)) 1560 return -EAGAIN; 1561 1562 buf = kzalloc(bufsz, GFP_KERNEL); 1563 if (!buf) 1564 return -ENOMEM; 1565 1566 pos += scnprintf(buf + pos, bufsz - pos, "Statistics_TX_Error:\n"); 1567 pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t\t%u\n", 1568 iwl_get_tx_fail_reason(TX_STATUS_POSTPONE_DELAY), 1569 priv->reply_tx_stats.pp_delay); 1570 pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t%u\n", 1571 iwl_get_tx_fail_reason(TX_STATUS_POSTPONE_FEW_BYTES), 1572 priv->reply_tx_stats.pp_few_bytes); 1573 pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t%u\n", 1574 iwl_get_tx_fail_reason(TX_STATUS_POSTPONE_BT_PRIO), 1575 priv->reply_tx_stats.pp_bt_prio); 1576 pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t%u\n", 1577 iwl_get_tx_fail_reason(TX_STATUS_POSTPONE_QUIET_PERIOD), 1578 priv->reply_tx_stats.pp_quiet_period); 1579 pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t%u\n", 1580 iwl_get_tx_fail_reason(TX_STATUS_POSTPONE_CALC_TTAK), 1581 priv->reply_tx_stats.pp_calc_ttak); 1582 pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t%u\n", 1583 iwl_get_tx_fail_reason( 1584 TX_STATUS_FAIL_INTERNAL_CROSSED_RETRY), 1585 priv->reply_tx_stats.int_crossed_retry); 1586 pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t%u\n", 1587 iwl_get_tx_fail_reason(TX_STATUS_FAIL_SHORT_LIMIT), 1588 priv->reply_tx_stats.short_limit); 1589 pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t%u\n", 1590 iwl_get_tx_fail_reason(TX_STATUS_FAIL_LONG_LIMIT), 1591 priv->reply_tx_stats.long_limit); 1592 pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t%u\n", 1593 iwl_get_tx_fail_reason(TX_STATUS_FAIL_FIFO_UNDERRUN), 1594 priv->reply_tx_stats.fifo_underrun); 1595 pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t%u\n", 1596 iwl_get_tx_fail_reason(TX_STATUS_FAIL_DRAIN_FLOW), 1597 priv->reply_tx_stats.drain_flow); 1598 pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t%u\n", 1599 iwl_get_tx_fail_reason(TX_STATUS_FAIL_RFKILL_FLUSH), 1600 priv->reply_tx_stats.rfkill_flush); 1601 pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t%u\n", 1602 iwl_get_tx_fail_reason(TX_STATUS_FAIL_LIFE_EXPIRE), 1603 priv->reply_tx_stats.life_expire); 1604 pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t%u\n", 1605 iwl_get_tx_fail_reason(TX_STATUS_FAIL_DEST_PS), 1606 priv->reply_tx_stats.dest_ps); 1607 pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t%u\n", 1608 iwl_get_tx_fail_reason(TX_STATUS_FAIL_HOST_ABORTED), 1609 priv->reply_tx_stats.host_abort); 1610 pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t%u\n", 1611 iwl_get_tx_fail_reason(TX_STATUS_FAIL_BT_RETRY), 1612 priv->reply_tx_stats.pp_delay); 1613 pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t%u\n", 1614 iwl_get_tx_fail_reason(TX_STATUS_FAIL_STA_INVALID), 1615 priv->reply_tx_stats.sta_invalid); 1616 pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t%u\n", 1617 iwl_get_tx_fail_reason(TX_STATUS_FAIL_FRAG_DROPPED), 1618 priv->reply_tx_stats.frag_drop); 1619 pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t%u\n", 1620 iwl_get_tx_fail_reason(TX_STATUS_FAIL_TID_DISABLE), 1621 priv->reply_tx_stats.tid_disable); 1622 pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t%u\n", 1623 iwl_get_tx_fail_reason(TX_STATUS_FAIL_FIFO_FLUSHED), 1624 priv->reply_tx_stats.fifo_flush); 1625 pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t%u\n", 1626 iwl_get_tx_fail_reason( 1627 TX_STATUS_FAIL_INSUFFICIENT_CF_POLL), 1628 priv->reply_tx_stats.insuff_cf_poll); 1629 pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t%u\n", 1630 iwl_get_tx_fail_reason(TX_STATUS_FAIL_PASSIVE_NO_RX), 1631 priv->reply_tx_stats.fail_hw_drop); 1632 pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t%u\n", 1633 iwl_get_tx_fail_reason( 1634 TX_STATUS_FAIL_NO_BEACON_ON_RADAR), 1635 priv->reply_tx_stats.sta_color_mismatch); 1636 pos += scnprintf(buf + pos, bufsz - pos, "UNKNOWN:\t\t\t%u\n", 1637 priv->reply_tx_stats.unknown); 1638 1639 pos += scnprintf(buf + pos, bufsz - pos, 1640 "\nStatistics_Agg_TX_Error:\n"); 1641 1642 pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t%u\n", 1643 iwl_get_agg_tx_fail_reason(AGG_TX_STATE_UNDERRUN_MSK), 1644 priv->reply_agg_tx_stats.underrun); 1645 pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t%u\n", 1646 iwl_get_agg_tx_fail_reason(AGG_TX_STATE_BT_PRIO_MSK), 1647 priv->reply_agg_tx_stats.bt_prio); 1648 pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t%u\n", 1649 iwl_get_agg_tx_fail_reason(AGG_TX_STATE_FEW_BYTES_MSK), 1650 priv->reply_agg_tx_stats.few_bytes); 1651 pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t%u\n", 1652 iwl_get_agg_tx_fail_reason(AGG_TX_STATE_ABORT_MSK), 1653 priv->reply_agg_tx_stats.abort); 1654 pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t%u\n", 1655 iwl_get_agg_tx_fail_reason( 1656 AGG_TX_STATE_LAST_SENT_TTL_MSK), 1657 priv->reply_agg_tx_stats.last_sent_ttl); 1658 pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t%u\n", 1659 iwl_get_agg_tx_fail_reason( 1660 AGG_TX_STATE_LAST_SENT_TRY_CNT_MSK), 1661 priv->reply_agg_tx_stats.last_sent_try); 1662 pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t%u\n", 1663 iwl_get_agg_tx_fail_reason( 1664 AGG_TX_STATE_LAST_SENT_BT_KILL_MSK), 1665 priv->reply_agg_tx_stats.last_sent_bt_kill); 1666 pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t%u\n", 1667 iwl_get_agg_tx_fail_reason(AGG_TX_STATE_SCD_QUERY_MSK), 1668 priv->reply_agg_tx_stats.scd_query); 1669 pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t%u\n", 1670 iwl_get_agg_tx_fail_reason( 1671 AGG_TX_STATE_TEST_BAD_CRC32_MSK), 1672 priv->reply_agg_tx_stats.bad_crc32); 1673 pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t%u\n", 1674 iwl_get_agg_tx_fail_reason(AGG_TX_STATE_RESPONSE_MSK), 1675 priv->reply_agg_tx_stats.response); 1676 pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t%u\n", 1677 iwl_get_agg_tx_fail_reason(AGG_TX_STATE_DUMP_TX_MSK), 1678 priv->reply_agg_tx_stats.dump_tx); 1679 pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t%u\n", 1680 iwl_get_agg_tx_fail_reason(AGG_TX_STATE_DELAY_TX_MSK), 1681 priv->reply_agg_tx_stats.delay_tx); 1682 pos += scnprintf(buf + pos, bufsz - pos, "UNKNOWN:\t\t\t%u\n", 1683 priv->reply_agg_tx_stats.unknown); 1684 1685 ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos); 1686 kfree(buf); 1687 return ret; 1688 } 1689 1690 static ssize_t iwl_dbgfs_sensitivity_read(struct file *file, 1691 char __user *user_buf, 1692 size_t count, loff_t *ppos) { 1693 1694 struct iwl_priv *priv = file->private_data; 1695 int pos = 0; 1696 int cnt = 0; 1697 char *buf; 1698 int bufsz = sizeof(struct iwl_sensitivity_data) * 4 + 100; 1699 ssize_t ret; 1700 struct iwl_sensitivity_data *data; 1701 1702 data = &priv->sensitivity_data; 1703 buf = kzalloc(bufsz, GFP_KERNEL); 1704 if (!buf) 1705 return -ENOMEM; 1706 1707 pos += scnprintf(buf + pos, bufsz - pos, "auto_corr_ofdm:\t\t\t %u\n", 1708 data->auto_corr_ofdm); 1709 pos += scnprintf(buf + pos, bufsz - pos, 1710 "auto_corr_ofdm_mrc:\t\t %u\n", 1711 data->auto_corr_ofdm_mrc); 1712 pos += scnprintf(buf + pos, bufsz - pos, "auto_corr_ofdm_x1:\t\t %u\n", 1713 data->auto_corr_ofdm_x1); 1714 pos += scnprintf(buf + pos, bufsz - pos, 1715 "auto_corr_ofdm_mrc_x1:\t\t %u\n", 1716 data->auto_corr_ofdm_mrc_x1); 1717 pos += scnprintf(buf + pos, bufsz - pos, "auto_corr_cck:\t\t\t %u\n", 1718 data->auto_corr_cck); 1719 pos += scnprintf(buf + pos, bufsz - pos, "auto_corr_cck_mrc:\t\t %u\n", 1720 data->auto_corr_cck_mrc); 1721 pos += scnprintf(buf + pos, bufsz - pos, 1722 "last_bad_plcp_cnt_ofdm:\t\t %u\n", 1723 data->last_bad_plcp_cnt_ofdm); 1724 pos += scnprintf(buf + pos, bufsz - pos, "last_fa_cnt_ofdm:\t\t %u\n", 1725 data->last_fa_cnt_ofdm); 1726 pos += scnprintf(buf + pos, bufsz - pos, 1727 "last_bad_plcp_cnt_cck:\t\t %u\n", 1728 data->last_bad_plcp_cnt_cck); 1729 pos += scnprintf(buf + pos, bufsz - pos, "last_fa_cnt_cck:\t\t %u\n", 1730 data->last_fa_cnt_cck); 1731 pos += scnprintf(buf + pos, bufsz - pos, "nrg_curr_state:\t\t\t %u\n", 1732 data->nrg_curr_state); 1733 pos += scnprintf(buf + pos, bufsz - pos, "nrg_prev_state:\t\t\t %u\n", 1734 data->nrg_prev_state); 1735 pos += scnprintf(buf + pos, bufsz - pos, "nrg_value:\t\t\t"); 1736 for (cnt = 0; cnt < 10; cnt++) { 1737 pos += scnprintf(buf + pos, bufsz - pos, " %u", 1738 data->nrg_value[cnt]); 1739 } 1740 pos += scnprintf(buf + pos, bufsz - pos, "\n"); 1741 pos += scnprintf(buf + pos, bufsz - pos, "nrg_silence_rssi:\t\t"); 1742 for (cnt = 0; cnt < NRG_NUM_PREV_STAT_L; cnt++) { 1743 pos += scnprintf(buf + pos, bufsz - pos, " %u", 1744 data->nrg_silence_rssi[cnt]); 1745 } 1746 pos += scnprintf(buf + pos, bufsz - pos, "\n"); 1747 pos += scnprintf(buf + pos, bufsz - pos, "nrg_silence_ref:\t\t %u\n", 1748 data->nrg_silence_ref); 1749 pos += scnprintf(buf + pos, bufsz - pos, "nrg_energy_idx:\t\t\t %u\n", 1750 data->nrg_energy_idx); 1751 pos += scnprintf(buf + pos, bufsz - pos, "nrg_silence_idx:\t\t %u\n", 1752 data->nrg_silence_idx); 1753 pos += scnprintf(buf + pos, bufsz - pos, "nrg_th_cck:\t\t\t %u\n", 1754 data->nrg_th_cck); 1755 pos += scnprintf(buf + pos, bufsz - pos, 1756 "nrg_auto_corr_silence_diff:\t %u\n", 1757 data->nrg_auto_corr_silence_diff); 1758 pos += scnprintf(buf + pos, bufsz - pos, "num_in_cck_no_fa:\t\t %u\n", 1759 data->num_in_cck_no_fa); 1760 pos += scnprintf(buf + pos, bufsz - pos, "nrg_th_ofdm:\t\t\t %u\n", 1761 data->nrg_th_ofdm); 1762 1763 ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos); 1764 kfree(buf); 1765 return ret; 1766 } 1767 1768 1769 static ssize_t iwl_dbgfs_chain_noise_read(struct file *file, 1770 char __user *user_buf, 1771 size_t count, loff_t *ppos) { 1772 1773 struct iwl_priv *priv = file->private_data; 1774 int pos = 0; 1775 int cnt = 0; 1776 char *buf; 1777 int bufsz = sizeof(struct iwl_chain_noise_data) * 4 + 100; 1778 ssize_t ret; 1779 struct iwl_chain_noise_data *data; 1780 1781 data = &priv->chain_noise_data; 1782 buf = kzalloc(bufsz, GFP_KERNEL); 1783 if (!buf) 1784 return -ENOMEM; 1785 1786 pos += scnprintf(buf + pos, bufsz - pos, "active_chains:\t\t\t %u\n", 1787 data->active_chains); 1788 pos += scnprintf(buf + pos, bufsz - pos, "chain_noise_a:\t\t\t %u\n", 1789 data->chain_noise_a); 1790 pos += scnprintf(buf + pos, bufsz - pos, "chain_noise_b:\t\t\t %u\n", 1791 data->chain_noise_b); 1792 pos += scnprintf(buf + pos, bufsz - pos, "chain_noise_c:\t\t\t %u\n", 1793 data->chain_noise_c); 1794 pos += scnprintf(buf + pos, bufsz - pos, "chain_signal_a:\t\t\t %u\n", 1795 data->chain_signal_a); 1796 pos += scnprintf(buf + pos, bufsz - pos, "chain_signal_b:\t\t\t %u\n", 1797 data->chain_signal_b); 1798 pos += scnprintf(buf + pos, bufsz - pos, "chain_signal_c:\t\t\t %u\n", 1799 data->chain_signal_c); 1800 pos += scnprintf(buf + pos, bufsz - pos, "beacon_count:\t\t\t %u\n", 1801 data->beacon_count); 1802 1803 pos += scnprintf(buf + pos, bufsz - pos, "disconn_array:\t\t\t"); 1804 for (cnt = 0; cnt < NUM_RX_CHAINS; cnt++) { 1805 pos += scnprintf(buf + pos, bufsz - pos, " %u", 1806 data->disconn_array[cnt]); 1807 } 1808 pos += scnprintf(buf + pos, bufsz - pos, "\n"); 1809 pos += scnprintf(buf + pos, bufsz - pos, "delta_gain_code:\t\t"); 1810 for (cnt = 0; cnt < NUM_RX_CHAINS; cnt++) { 1811 pos += scnprintf(buf + pos, bufsz - pos, " %u", 1812 data->delta_gain_code[cnt]); 1813 } 1814 pos += scnprintf(buf + pos, bufsz - pos, "\n"); 1815 pos += scnprintf(buf + pos, bufsz - pos, "radio_write:\t\t\t %u\n", 1816 data->radio_write); 1817 pos += scnprintf(buf + pos, bufsz - pos, "state:\t\t\t\t %u\n", 1818 data->state); 1819 1820 ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos); 1821 kfree(buf); 1822 return ret; 1823 } 1824 1825 static ssize_t iwl_dbgfs_power_save_status_read(struct file *file, 1826 char __user *user_buf, 1827 size_t count, loff_t *ppos) 1828 { 1829 struct iwl_priv *priv = file->private_data; 1830 char buf[60]; 1831 int pos = 0; 1832 const size_t bufsz = sizeof(buf); 1833 u32 pwrsave_status; 1834 1835 pwrsave_status = iwl_read32(priv->trans, CSR_GP_CNTRL) & 1836 CSR_GP_REG_POWER_SAVE_STATUS_MSK; 1837 1838 pos += scnprintf(buf + pos, bufsz - pos, "Power Save Status: "); 1839 pos += scnprintf(buf + pos, bufsz - pos, "%s\n", 1840 (pwrsave_status == CSR_GP_REG_NO_POWER_SAVE) ? "none" : 1841 (pwrsave_status == CSR_GP_REG_MAC_POWER_SAVE) ? "MAC" : 1842 (pwrsave_status == CSR_GP_REG_PHY_POWER_SAVE) ? "PHY" : 1843 "error"); 1844 1845 return simple_read_from_buffer(user_buf, count, ppos, buf, pos); 1846 } 1847 1848 static ssize_t iwl_dbgfs_clear_ucode_statistics_write(struct file *file, 1849 const char __user *user_buf, 1850 size_t count, loff_t *ppos) 1851 { 1852 struct iwl_priv *priv = file->private_data; 1853 char buf[8]; 1854 int buf_size; 1855 int clear; 1856 1857 memset(buf, 0, sizeof(buf)); 1858 buf_size = min(count, sizeof(buf) - 1); 1859 if (copy_from_user(buf, user_buf, buf_size)) 1860 return -EFAULT; 1861 if (sscanf(buf, "%d", &clear) != 1) 1862 return -EFAULT; 1863 1864 /* make request to uCode to retrieve statistics information */ 1865 mutex_lock(&priv->mutex); 1866 iwl_send_statistics_request(priv, 0, true); 1867 mutex_unlock(&priv->mutex); 1868 1869 return count; 1870 } 1871 1872 static ssize_t iwl_dbgfs_ucode_tracing_read(struct file *file, 1873 char __user *user_buf, 1874 size_t count, loff_t *ppos) { 1875 1876 struct iwl_priv *priv = file->private_data; 1877 int pos = 0; 1878 char buf[128]; 1879 const size_t bufsz = sizeof(buf); 1880 1881 pos += scnprintf(buf + pos, bufsz - pos, "ucode trace timer is %s\n", 1882 priv->event_log.ucode_trace ? "On" : "Off"); 1883 pos += scnprintf(buf + pos, bufsz - pos, "non_wraps_count:\t\t %u\n", 1884 priv->event_log.non_wraps_count); 1885 pos += scnprintf(buf + pos, bufsz - pos, "wraps_once_count:\t\t %u\n", 1886 priv->event_log.wraps_once_count); 1887 pos += scnprintf(buf + pos, bufsz - pos, "wraps_more_count:\t\t %u\n", 1888 priv->event_log.wraps_more_count); 1889 1890 return simple_read_from_buffer(user_buf, count, ppos, buf, pos); 1891 } 1892 1893 static ssize_t iwl_dbgfs_ucode_tracing_write(struct file *file, 1894 const char __user *user_buf, 1895 size_t count, loff_t *ppos) 1896 { 1897 struct iwl_priv *priv = file->private_data; 1898 char buf[8]; 1899 int buf_size; 1900 int trace; 1901 1902 memset(buf, 0, sizeof(buf)); 1903 buf_size = min(count, sizeof(buf) - 1); 1904 if (copy_from_user(buf, user_buf, buf_size)) 1905 return -EFAULT; 1906 if (sscanf(buf, "%d", &trace) != 1) 1907 return -EFAULT; 1908 1909 if (trace) { 1910 priv->event_log.ucode_trace = true; 1911 if (iwl_is_alive(priv)) { 1912 /* start collecting data now */ 1913 mod_timer(&priv->ucode_trace, jiffies); 1914 } 1915 } else { 1916 priv->event_log.ucode_trace = false; 1917 del_timer_sync(&priv->ucode_trace); 1918 } 1919 1920 return count; 1921 } 1922 1923 static ssize_t iwl_dbgfs_rxon_flags_read(struct file *file, 1924 char __user *user_buf, 1925 size_t count, loff_t *ppos) { 1926 1927 struct iwl_priv *priv = file->private_data; 1928 int len = 0; 1929 char buf[20]; 1930 1931 len = sprintf(buf, "0x%04X\n", 1932 le32_to_cpu(priv->contexts[IWL_RXON_CTX_BSS].active.flags)); 1933 return simple_read_from_buffer(user_buf, count, ppos, buf, len); 1934 } 1935 1936 static ssize_t iwl_dbgfs_rxon_filter_flags_read(struct file *file, 1937 char __user *user_buf, 1938 size_t count, loff_t *ppos) { 1939 1940 struct iwl_priv *priv = file->private_data; 1941 int len = 0; 1942 char buf[20]; 1943 1944 len = sprintf(buf, "0x%04X\n", 1945 le32_to_cpu(priv->contexts[IWL_RXON_CTX_BSS].active.filter_flags)); 1946 return simple_read_from_buffer(user_buf, count, ppos, buf, len); 1947 } 1948 1949 static ssize_t iwl_dbgfs_missed_beacon_read(struct file *file, 1950 char __user *user_buf, 1951 size_t count, loff_t *ppos) { 1952 1953 struct iwl_priv *priv = file->private_data; 1954 int pos = 0; 1955 char buf[12]; 1956 const size_t bufsz = sizeof(buf); 1957 1958 pos += scnprintf(buf + pos, bufsz - pos, "%d\n", 1959 priv->missed_beacon_threshold); 1960 1961 return simple_read_from_buffer(user_buf, count, ppos, buf, pos); 1962 } 1963 1964 static ssize_t iwl_dbgfs_missed_beacon_write(struct file *file, 1965 const char __user *user_buf, 1966 size_t count, loff_t *ppos) 1967 { 1968 struct iwl_priv *priv = file->private_data; 1969 char buf[8]; 1970 int buf_size; 1971 int missed; 1972 1973 memset(buf, 0, sizeof(buf)); 1974 buf_size = min(count, sizeof(buf) - 1); 1975 if (copy_from_user(buf, user_buf, buf_size)) 1976 return -EFAULT; 1977 if (sscanf(buf, "%d", &missed) != 1) 1978 return -EINVAL; 1979 1980 if (missed < IWL_MISSED_BEACON_THRESHOLD_MIN || 1981 missed > IWL_MISSED_BEACON_THRESHOLD_MAX) 1982 priv->missed_beacon_threshold = 1983 IWL_MISSED_BEACON_THRESHOLD_DEF; 1984 else 1985 priv->missed_beacon_threshold = missed; 1986 1987 return count; 1988 } 1989 1990 static ssize_t iwl_dbgfs_plcp_delta_read(struct file *file, 1991 char __user *user_buf, 1992 size_t count, loff_t *ppos) { 1993 1994 struct iwl_priv *priv = file->private_data; 1995 int pos = 0; 1996 char buf[12]; 1997 const size_t bufsz = sizeof(buf); 1998 1999 pos += scnprintf(buf + pos, bufsz - pos, "%u\n", 2000 priv->plcp_delta_threshold); 2001 2002 return simple_read_from_buffer(user_buf, count, ppos, buf, pos); 2003 } 2004 2005 static ssize_t iwl_dbgfs_plcp_delta_write(struct file *file, 2006 const char __user *user_buf, 2007 size_t count, loff_t *ppos) { 2008 2009 struct iwl_priv *priv = file->private_data; 2010 char buf[8]; 2011 int buf_size; 2012 int plcp; 2013 2014 memset(buf, 0, sizeof(buf)); 2015 buf_size = min(count, sizeof(buf) - 1); 2016 if (copy_from_user(buf, user_buf, buf_size)) 2017 return -EFAULT; 2018 if (sscanf(buf, "%d", &plcp) != 1) 2019 return -EINVAL; 2020 if ((plcp < IWL_MAX_PLCP_ERR_THRESHOLD_MIN) || 2021 (plcp > IWL_MAX_PLCP_ERR_THRESHOLD_MAX)) 2022 priv->plcp_delta_threshold = 2023 IWL_MAX_PLCP_ERR_THRESHOLD_DISABLE; 2024 else 2025 priv->plcp_delta_threshold = plcp; 2026 return count; 2027 } 2028 2029 static ssize_t iwl_dbgfs_rf_reset_read(struct file *file, 2030 char __user *user_buf, 2031 size_t count, loff_t *ppos) 2032 { 2033 struct iwl_priv *priv = file->private_data; 2034 int pos = 0; 2035 char buf[300]; 2036 const size_t bufsz = sizeof(buf); 2037 struct iwl_rf_reset *rf_reset = &priv->rf_reset; 2038 2039 pos += scnprintf(buf + pos, bufsz - pos, 2040 "RF reset statistics\n"); 2041 pos += scnprintf(buf + pos, bufsz - pos, 2042 "\tnumber of reset request: %d\n", 2043 rf_reset->reset_request_count); 2044 pos += scnprintf(buf + pos, bufsz - pos, 2045 "\tnumber of reset request success: %d\n", 2046 rf_reset->reset_success_count); 2047 pos += scnprintf(buf + pos, bufsz - pos, 2048 "\tnumber of reset request reject: %d\n", 2049 rf_reset->reset_reject_count); 2050 2051 return simple_read_from_buffer(user_buf, count, ppos, buf, pos); 2052 } 2053 2054 static ssize_t iwl_dbgfs_rf_reset_write(struct file *file, 2055 const char __user *user_buf, 2056 size_t count, loff_t *ppos) { 2057 2058 struct iwl_priv *priv = file->private_data; 2059 int ret; 2060 2061 ret = iwl_force_rf_reset(priv, true); 2062 return ret ? ret : count; 2063 } 2064 2065 static ssize_t iwl_dbgfs_txfifo_flush_write(struct file *file, 2066 const char __user *user_buf, 2067 size_t count, loff_t *ppos) { 2068 2069 struct iwl_priv *priv = file->private_data; 2070 char buf[8]; 2071 int buf_size; 2072 int flush; 2073 2074 memset(buf, 0, sizeof(buf)); 2075 buf_size = min(count, sizeof(buf) - 1); 2076 if (copy_from_user(buf, user_buf, buf_size)) 2077 return -EFAULT; 2078 if (sscanf(buf, "%d", &flush) != 1) 2079 return -EINVAL; 2080 2081 if (iwl_is_rfkill(priv)) 2082 return -EFAULT; 2083 2084 iwlagn_dev_txfifo_flush(priv); 2085 2086 return count; 2087 } 2088 2089 static ssize_t iwl_dbgfs_bt_traffic_read(struct file *file, 2090 char __user *user_buf, 2091 size_t count, loff_t *ppos) { 2092 2093 struct iwl_priv *priv = (struct iwl_priv *)file->private_data; 2094 int pos = 0; 2095 char buf[200]; 2096 const size_t bufsz = sizeof(buf); 2097 2098 if (!priv->bt_enable_flag) { 2099 pos += scnprintf(buf + pos, bufsz - pos, "BT coex disabled\n"); 2100 return simple_read_from_buffer(user_buf, count, ppos, buf, pos); 2101 } 2102 pos += scnprintf(buf + pos, bufsz - pos, "BT enable flag: 0x%x\n", 2103 priv->bt_enable_flag); 2104 pos += scnprintf(buf + pos, bufsz - pos, "BT in %s mode\n", 2105 priv->bt_full_concurrent ? "full concurrency" : "3-wire"); 2106 pos += scnprintf(buf + pos, bufsz - pos, "BT status: %s, " 2107 "last traffic notif: %d\n", 2108 priv->bt_status ? "On" : "Off", priv->last_bt_traffic_load); 2109 pos += scnprintf(buf + pos, bufsz - pos, "ch_announcement: %d, " 2110 "kill_ack_mask: %x, kill_cts_mask: %x\n", 2111 priv->bt_ch_announce, priv->kill_ack_mask, 2112 priv->kill_cts_mask); 2113 2114 pos += scnprintf(buf + pos, bufsz - pos, "bluetooth traffic load: "); 2115 switch (priv->bt_traffic_load) { 2116 case IWL_BT_COEX_TRAFFIC_LOAD_CONTINUOUS: 2117 pos += scnprintf(buf + pos, bufsz - pos, "Continuous\n"); 2118 break; 2119 case IWL_BT_COEX_TRAFFIC_LOAD_HIGH: 2120 pos += scnprintf(buf + pos, bufsz - pos, "High\n"); 2121 break; 2122 case IWL_BT_COEX_TRAFFIC_LOAD_LOW: 2123 pos += scnprintf(buf + pos, bufsz - pos, "Low\n"); 2124 break; 2125 case IWL_BT_COEX_TRAFFIC_LOAD_NONE: 2126 default: 2127 pos += scnprintf(buf + pos, bufsz - pos, "None\n"); 2128 break; 2129 } 2130 2131 return simple_read_from_buffer(user_buf, count, ppos, buf, pos); 2132 } 2133 2134 static ssize_t iwl_dbgfs_protection_mode_read(struct file *file, 2135 char __user *user_buf, 2136 size_t count, loff_t *ppos) 2137 { 2138 struct iwl_priv *priv = (struct iwl_priv *)file->private_data; 2139 2140 int pos = 0; 2141 char buf[40]; 2142 const size_t bufsz = sizeof(buf); 2143 2144 if (priv->cfg->ht_params) 2145 pos += scnprintf(buf + pos, bufsz - pos, 2146 "use %s for aggregation\n", 2147 (priv->hw_params.use_rts_for_aggregation) ? 2148 "rts/cts" : "cts-to-self"); 2149 else 2150 pos += scnprintf(buf + pos, bufsz - pos, "N/A"); 2151 2152 return simple_read_from_buffer(user_buf, count, ppos, buf, pos); 2153 } 2154 2155 static ssize_t iwl_dbgfs_protection_mode_write(struct file *file, 2156 const char __user *user_buf, 2157 size_t count, loff_t *ppos) { 2158 2159 struct iwl_priv *priv = file->private_data; 2160 char buf[8]; 2161 int buf_size; 2162 int rts; 2163 2164 if (!priv->cfg->ht_params) 2165 return -EINVAL; 2166 2167 memset(buf, 0, sizeof(buf)); 2168 buf_size = min(count, sizeof(buf) - 1); 2169 if (copy_from_user(buf, user_buf, buf_size)) 2170 return -EFAULT; 2171 if (sscanf(buf, "%d", &rts) != 1) 2172 return -EINVAL; 2173 if (rts) 2174 priv->hw_params.use_rts_for_aggregation = true; 2175 else 2176 priv->hw_params.use_rts_for_aggregation = false; 2177 return count; 2178 } 2179 2180 static int iwl_cmd_echo_test(struct iwl_priv *priv) 2181 { 2182 int ret; 2183 struct iwl_host_cmd cmd = { 2184 .id = REPLY_ECHO, 2185 .len = { 0 }, 2186 }; 2187 2188 ret = iwl_dvm_send_cmd(priv, &cmd); 2189 if (ret) 2190 IWL_ERR(priv, "echo testing fail: 0X%x\n", ret); 2191 else 2192 IWL_DEBUG_INFO(priv, "echo testing pass\n"); 2193 return ret; 2194 } 2195 2196 static ssize_t iwl_dbgfs_echo_test_write(struct file *file, 2197 const char __user *user_buf, 2198 size_t count, loff_t *ppos) 2199 { 2200 struct iwl_priv *priv = file->private_data; 2201 char buf[8]; 2202 int buf_size; 2203 2204 memset(buf, 0, sizeof(buf)); 2205 buf_size = min(count, sizeof(buf) - 1); 2206 if (copy_from_user(buf, user_buf, buf_size)) 2207 return -EFAULT; 2208 2209 iwl_cmd_echo_test(priv); 2210 return count; 2211 } 2212 2213 #ifdef CONFIG_IWLWIFI_DEBUG 2214 static ssize_t iwl_dbgfs_log_event_read(struct file *file, 2215 char __user *user_buf, 2216 size_t count, loff_t *ppos) 2217 { 2218 struct iwl_priv *priv = file->private_data; 2219 char *buf = NULL; 2220 ssize_t ret; 2221 2222 ret = iwl_dump_nic_event_log(priv, true, &buf); 2223 if (ret > 0) 2224 ret = simple_read_from_buffer(user_buf, count, ppos, buf, ret); 2225 kfree(buf); 2226 return ret; 2227 } 2228 2229 static ssize_t iwl_dbgfs_log_event_write(struct file *file, 2230 const char __user *user_buf, 2231 size_t count, loff_t *ppos) 2232 { 2233 struct iwl_priv *priv = file->private_data; 2234 u32 event_log_flag; 2235 char buf[8]; 2236 int buf_size; 2237 2238 /* check that the interface is up */ 2239 if (!iwl_is_ready(priv)) 2240 return -EAGAIN; 2241 2242 memset(buf, 0, sizeof(buf)); 2243 buf_size = min(count, sizeof(buf) - 1); 2244 if (copy_from_user(buf, user_buf, buf_size)) 2245 return -EFAULT; 2246 if (sscanf(buf, "%d", &event_log_flag) != 1) 2247 return -EFAULT; 2248 if (event_log_flag == 1) 2249 iwl_dump_nic_event_log(priv, true, NULL); 2250 2251 return count; 2252 } 2253 #endif 2254 2255 static ssize_t iwl_dbgfs_calib_disabled_read(struct file *file, 2256 char __user *user_buf, 2257 size_t count, loff_t *ppos) 2258 { 2259 struct iwl_priv *priv = file->private_data; 2260 char buf[120]; 2261 int pos = 0; 2262 const size_t bufsz = sizeof(buf); 2263 2264 pos += scnprintf(buf + pos, bufsz - pos, 2265 "Sensitivity calibrations %s\n", 2266 (priv->calib_disabled & 2267 IWL_SENSITIVITY_CALIB_DISABLED) ? 2268 "DISABLED" : "ENABLED"); 2269 pos += scnprintf(buf + pos, bufsz - pos, 2270 "Chain noise calibrations %s\n", 2271 (priv->calib_disabled & 2272 IWL_CHAIN_NOISE_CALIB_DISABLED) ? 2273 "DISABLED" : "ENABLED"); 2274 pos += scnprintf(buf + pos, bufsz - pos, 2275 "Tx power calibrations %s\n", 2276 (priv->calib_disabled & 2277 IWL_TX_POWER_CALIB_DISABLED) ? 2278 "DISABLED" : "ENABLED"); 2279 2280 return simple_read_from_buffer(user_buf, count, ppos, buf, pos); 2281 } 2282 2283 static ssize_t iwl_dbgfs_calib_disabled_write(struct file *file, 2284 const char __user *user_buf, 2285 size_t count, loff_t *ppos) 2286 { 2287 struct iwl_priv *priv = file->private_data; 2288 char buf[8]; 2289 u32 calib_disabled; 2290 int buf_size; 2291 2292 memset(buf, 0, sizeof(buf)); 2293 buf_size = min(count, sizeof(buf) - 1); 2294 if (copy_from_user(buf, user_buf, buf_size)) 2295 return -EFAULT; 2296 if (sscanf(buf, "%x", &calib_disabled) != 1) 2297 return -EFAULT; 2298 2299 priv->calib_disabled = calib_disabled; 2300 2301 return count; 2302 } 2303 2304 static ssize_t iwl_dbgfs_fw_restart_write(struct file *file, 2305 const char __user *user_buf, 2306 size_t count, loff_t *ppos) 2307 { 2308 struct iwl_priv *priv = file->private_data; 2309 bool fw_restart = iwlwifi_mod_params.fw_restart; 2310 int __maybe_unused ret; 2311 2312 iwlwifi_mod_params.fw_restart = true; 2313 2314 mutex_lock(&priv->mutex); 2315 2316 /* take the return value to make compiler happy - it will fail anyway */ 2317 ret = iwl_dvm_send_cmd_pdu(priv, REPLY_ERROR, 0, 0, NULL); 2318 2319 mutex_unlock(&priv->mutex); 2320 2321 iwlwifi_mod_params.fw_restart = fw_restart; 2322 2323 return count; 2324 } 2325 2326 DEBUGFS_READ_FILE_OPS(ucode_rx_stats); 2327 DEBUGFS_READ_FILE_OPS(ucode_tx_stats); 2328 DEBUGFS_READ_FILE_OPS(ucode_general_stats); 2329 DEBUGFS_READ_FILE_OPS(sensitivity); 2330 DEBUGFS_READ_FILE_OPS(chain_noise); 2331 DEBUGFS_READ_FILE_OPS(power_save_status); 2332 DEBUGFS_WRITE_FILE_OPS(clear_ucode_statistics); 2333 DEBUGFS_READ_WRITE_FILE_OPS(ucode_tracing); 2334 DEBUGFS_READ_WRITE_FILE_OPS(missed_beacon); 2335 DEBUGFS_READ_WRITE_FILE_OPS(plcp_delta); 2336 DEBUGFS_READ_WRITE_FILE_OPS(rf_reset); 2337 DEBUGFS_READ_FILE_OPS(rxon_flags); 2338 DEBUGFS_READ_FILE_OPS(rxon_filter_flags); 2339 DEBUGFS_WRITE_FILE_OPS(txfifo_flush); 2340 DEBUGFS_READ_FILE_OPS(ucode_bt_stats); 2341 DEBUGFS_READ_FILE_OPS(bt_traffic); 2342 DEBUGFS_READ_WRITE_FILE_OPS(protection_mode); 2343 DEBUGFS_READ_FILE_OPS(reply_tx_error); 2344 DEBUGFS_WRITE_FILE_OPS(echo_test); 2345 DEBUGFS_WRITE_FILE_OPS(fw_restart); 2346 #ifdef CONFIG_IWLWIFI_DEBUG 2347 DEBUGFS_READ_WRITE_FILE_OPS(log_event); 2348 #endif 2349 DEBUGFS_READ_WRITE_FILE_OPS(calib_disabled); 2350 2351 /* 2352 * Create the debugfs files and directories 2353 * 2354 */ 2355 int iwl_dbgfs_register(struct iwl_priv *priv, struct dentry *dbgfs_dir) 2356 { 2357 struct dentry *dir_data, *dir_rf, *dir_debug; 2358 2359 priv->debugfs_dir = dbgfs_dir; 2360 2361 dir_data = debugfs_create_dir("data", dbgfs_dir); 2362 if (!dir_data) 2363 goto err; 2364 dir_rf = debugfs_create_dir("rf", dbgfs_dir); 2365 if (!dir_rf) 2366 goto err; 2367 dir_debug = debugfs_create_dir("debug", dbgfs_dir); 2368 if (!dir_debug) 2369 goto err; 2370 2371 DEBUGFS_ADD_FILE(nvm, dir_data, 0400); 2372 DEBUGFS_ADD_FILE(sram, dir_data, 0600); 2373 DEBUGFS_ADD_FILE(wowlan_sram, dir_data, 0400); 2374 DEBUGFS_ADD_FILE(stations, dir_data, 0400); 2375 DEBUGFS_ADD_FILE(channels, dir_data, 0400); 2376 DEBUGFS_ADD_FILE(status, dir_data, 0400); 2377 DEBUGFS_ADD_FILE(rx_handlers, dir_data, 0600); 2378 DEBUGFS_ADD_FILE(qos, dir_data, 0400); 2379 DEBUGFS_ADD_FILE(sleep_level_override, dir_data, 0600); 2380 DEBUGFS_ADD_FILE(current_sleep_command, dir_data, 0400); 2381 DEBUGFS_ADD_FILE(thermal_throttling, dir_data, 0400); 2382 DEBUGFS_ADD_FILE(disable_ht40, dir_data, 0600); 2383 DEBUGFS_ADD_FILE(temperature, dir_data, 0400); 2384 2385 DEBUGFS_ADD_FILE(power_save_status, dir_debug, 0400); 2386 DEBUGFS_ADD_FILE(clear_ucode_statistics, dir_debug, 0200); 2387 DEBUGFS_ADD_FILE(missed_beacon, dir_debug, 0200); 2388 DEBUGFS_ADD_FILE(plcp_delta, dir_debug, 0600); 2389 DEBUGFS_ADD_FILE(rf_reset, dir_debug, 0600); 2390 DEBUGFS_ADD_FILE(ucode_rx_stats, dir_debug, 0400); 2391 DEBUGFS_ADD_FILE(ucode_tx_stats, dir_debug, 0400); 2392 DEBUGFS_ADD_FILE(ucode_general_stats, dir_debug, 0400); 2393 DEBUGFS_ADD_FILE(txfifo_flush, dir_debug, 0200); 2394 DEBUGFS_ADD_FILE(protection_mode, dir_debug, 0600); 2395 DEBUGFS_ADD_FILE(sensitivity, dir_debug, 0400); 2396 DEBUGFS_ADD_FILE(chain_noise, dir_debug, 0400); 2397 DEBUGFS_ADD_FILE(ucode_tracing, dir_debug, 0600); 2398 DEBUGFS_ADD_FILE(ucode_bt_stats, dir_debug, 0400); 2399 DEBUGFS_ADD_FILE(reply_tx_error, dir_debug, 0400); 2400 DEBUGFS_ADD_FILE(rxon_flags, dir_debug, 0200); 2401 DEBUGFS_ADD_FILE(rxon_filter_flags, dir_debug, 0200); 2402 DEBUGFS_ADD_FILE(echo_test, dir_debug, 0200); 2403 DEBUGFS_ADD_FILE(fw_restart, dir_debug, 0200); 2404 #ifdef CONFIG_IWLWIFI_DEBUG 2405 DEBUGFS_ADD_FILE(log_event, dir_debug, 0600); 2406 #endif 2407 2408 if (iwl_advanced_bt_coexist(priv)) 2409 DEBUGFS_ADD_FILE(bt_traffic, dir_debug, 0400); 2410 2411 /* Calibrations disabled/enabled status*/ 2412 DEBUGFS_ADD_FILE(calib_disabled, dir_rf, 0600); 2413 2414 /* 2415 * Create a symlink with mac80211. This is not very robust, as it does 2416 * not remove the symlink created. The implicit assumption is that 2417 * when the opmode exits, mac80211 will also exit, and will remove 2418 * this symlink as part of its cleanup. 2419 */ 2420 if (priv->mac80211_registered) { 2421 char buf[100]; 2422 struct dentry *mac80211_dir, *dev_dir; 2423 2424 dev_dir = dbgfs_dir->d_parent; 2425 mac80211_dir = priv->hw->wiphy->debugfsdir; 2426 2427 snprintf(buf, 100, "../../%pd2", dev_dir); 2428 2429 if (!debugfs_create_symlink("iwlwifi", mac80211_dir, buf)) 2430 goto err; 2431 } 2432 2433 return 0; 2434 2435 err: 2436 IWL_ERR(priv, "failed to create the dvm debugfs entries\n"); 2437 return -ENOMEM; 2438 } 2439