1 /****************************************************************************** 2 * 3 * This file is provided under a dual BSD/GPLv2 license. When using or 4 * redistributing this file, you may do so under either license. 5 * 6 * GPL LICENSE SUMMARY 7 * 8 * Copyright(c) 2012 - 2014 Intel Corporation. All rights reserved. 9 * Copyright(c) 2013 - 2015 Intel Mobile Communications GmbH 10 * 11 * This program is free software; you can redistribute it and/or modify 12 * it under the terms of version 2 of the GNU General Public License as 13 * published by the Free Software Foundation. 14 * 15 * This program is distributed in the hope that it will be useful, but 16 * WITHOUT ANY WARRANTY; without even the implied warranty of 17 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 18 * General Public License for more details. 19 * 20 * You should have received a copy of the GNU General Public License 21 * along with this program; if not, write to the Free Software 22 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110, 23 * USA 24 * 25 * The full GNU General Public License is included in this distribution 26 * in the file called COPYING. 27 * 28 * Contact Information: 29 * Intel Linux Wireless <linuxwifi@intel.com> 30 * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497 31 * 32 * BSD LICENSE 33 * 34 * Copyright(c) 2012 - 2014 Intel Corporation. All rights reserved. 35 * Copyright(c) 2013 - 2015 Intel Mobile Communications GmbH 36 * All rights reserved. 37 * 38 * Redistribution and use in source and binary forms, with or without 39 * modification, are permitted provided that the following conditions 40 * are met: 41 * 42 * * Redistributions of source code must retain the above copyright 43 * notice, this list of conditions and the following disclaimer. 44 * * Redistributions in binary form must reproduce the above copyright 45 * notice, this list of conditions and the following disclaimer in 46 * the documentation and/or other materials provided with the 47 * distribution. 48 * * Neither the name Intel Corporation nor the names of its 49 * contributors may be used to endorse or promote products derived 50 * from this software without specific prior written permission. 51 * 52 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 53 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 54 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 55 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 56 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 57 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 58 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 59 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 60 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 61 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 62 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 63 * 64 *****************************************************************************/ 65 #include <linux/vmalloc.h> 66 67 #include "mvm.h" 68 #include "fw-dbg.h" 69 #include "sta.h" 70 #include "iwl-io.h" 71 #include "debugfs.h" 72 #include "iwl-fw-error-dump.h" 73 74 static ssize_t iwl_dbgfs_tx_flush_write(struct iwl_mvm *mvm, char *buf, 75 size_t count, loff_t *ppos) 76 { 77 int ret; 78 u32 scd_q_msk; 79 80 if (!mvm->ucode_loaded || mvm->cur_ucode != IWL_UCODE_REGULAR) 81 return -EIO; 82 83 if (sscanf(buf, "%x", &scd_q_msk) != 1) 84 return -EINVAL; 85 86 IWL_ERR(mvm, "FLUSHING queues: scd_q_msk = 0x%x\n", scd_q_msk); 87 88 mutex_lock(&mvm->mutex); 89 ret = iwl_mvm_flush_tx_path(mvm, scd_q_msk, 0) ? : count; 90 mutex_unlock(&mvm->mutex); 91 92 return ret; 93 } 94 95 static ssize_t iwl_dbgfs_sta_drain_write(struct iwl_mvm *mvm, char *buf, 96 size_t count, loff_t *ppos) 97 { 98 struct iwl_mvm_sta *mvmsta; 99 int sta_id, drain, ret; 100 101 if (!mvm->ucode_loaded || mvm->cur_ucode != IWL_UCODE_REGULAR) 102 return -EIO; 103 104 if (sscanf(buf, "%d %d", &sta_id, &drain) != 2) 105 return -EINVAL; 106 if (sta_id < 0 || sta_id >= IWL_MVM_STATION_COUNT) 107 return -EINVAL; 108 if (drain < 0 || drain > 1) 109 return -EINVAL; 110 111 mutex_lock(&mvm->mutex); 112 113 mvmsta = iwl_mvm_sta_from_staid_protected(mvm, sta_id); 114 115 if (!mvmsta) 116 ret = -ENOENT; 117 else 118 ret = iwl_mvm_drain_sta(mvm, mvmsta, drain) ? : count; 119 120 mutex_unlock(&mvm->mutex); 121 122 return ret; 123 } 124 125 static ssize_t iwl_dbgfs_sram_read(struct file *file, char __user *user_buf, 126 size_t count, loff_t *ppos) 127 { 128 struct iwl_mvm *mvm = file->private_data; 129 const struct fw_img *img; 130 unsigned int ofs, len; 131 size_t ret; 132 u8 *ptr; 133 134 if (!mvm->ucode_loaded) 135 return -EINVAL; 136 137 /* default is to dump the entire data segment */ 138 img = &mvm->fw->img[mvm->cur_ucode]; 139 ofs = img->sec[IWL_UCODE_SECTION_DATA].offset; 140 len = img->sec[IWL_UCODE_SECTION_DATA].len; 141 142 if (mvm->dbgfs_sram_len) { 143 ofs = mvm->dbgfs_sram_offset; 144 len = mvm->dbgfs_sram_len; 145 } 146 147 ptr = kzalloc(len, GFP_KERNEL); 148 if (!ptr) 149 return -ENOMEM; 150 151 iwl_trans_read_mem_bytes(mvm->trans, ofs, ptr, len); 152 153 ret = simple_read_from_buffer(user_buf, count, ppos, ptr, len); 154 155 kfree(ptr); 156 157 return ret; 158 } 159 160 static ssize_t iwl_dbgfs_sram_write(struct iwl_mvm *mvm, char *buf, 161 size_t count, loff_t *ppos) 162 { 163 const struct fw_img *img; 164 u32 offset, len; 165 u32 img_offset, img_len; 166 167 if (!mvm->ucode_loaded) 168 return -EINVAL; 169 170 img = &mvm->fw->img[mvm->cur_ucode]; 171 img_offset = img->sec[IWL_UCODE_SECTION_DATA].offset; 172 img_len = img->sec[IWL_UCODE_SECTION_DATA].len; 173 174 if (sscanf(buf, "%x,%x", &offset, &len) == 2) { 175 if ((offset & 0x3) || (len & 0x3)) 176 return -EINVAL; 177 178 if (offset + len > img_offset + img_len) 179 return -EINVAL; 180 181 mvm->dbgfs_sram_offset = offset; 182 mvm->dbgfs_sram_len = len; 183 } else { 184 mvm->dbgfs_sram_offset = 0; 185 mvm->dbgfs_sram_len = 0; 186 } 187 188 return count; 189 } 190 191 static ssize_t iwl_dbgfs_set_nic_temperature_read(struct file *file, 192 char __user *user_buf, 193 size_t count, loff_t *ppos) 194 { 195 struct iwl_mvm *mvm = file->private_data; 196 char buf[16]; 197 int pos; 198 199 if (!mvm->temperature_test) 200 pos = scnprintf(buf , sizeof(buf), "disabled\n"); 201 else 202 pos = scnprintf(buf , sizeof(buf), "%d\n", mvm->temperature); 203 204 return simple_read_from_buffer(user_buf, count, ppos, buf, pos); 205 } 206 207 /* 208 * Set NIC Temperature 209 * Cause the driver to ignore the actual NIC temperature reported by the FW 210 * Enable: any value between IWL_MVM_DEBUG_SET_TEMPERATURE_MIN - 211 * IWL_MVM_DEBUG_SET_TEMPERATURE_MAX 212 * Disable: IWL_MVM_DEBUG_SET_TEMPERATURE_DISABLE 213 */ 214 static ssize_t iwl_dbgfs_set_nic_temperature_write(struct iwl_mvm *mvm, 215 char *buf, size_t count, 216 loff_t *ppos) 217 { 218 int temperature; 219 220 if (!mvm->ucode_loaded && !mvm->temperature_test) 221 return -EIO; 222 223 if (kstrtoint(buf, 10, &temperature)) 224 return -EINVAL; 225 /* not a legal temperature */ 226 if ((temperature > IWL_MVM_DEBUG_SET_TEMPERATURE_MAX && 227 temperature != IWL_MVM_DEBUG_SET_TEMPERATURE_DISABLE) || 228 temperature < IWL_MVM_DEBUG_SET_TEMPERATURE_MIN) 229 return -EINVAL; 230 231 mutex_lock(&mvm->mutex); 232 if (temperature == IWL_MVM_DEBUG_SET_TEMPERATURE_DISABLE) { 233 if (!mvm->temperature_test) 234 goto out; 235 236 mvm->temperature_test = false; 237 /* Since we can't read the temp while awake, just set 238 * it to zero until we get the next RX stats from the 239 * firmware. 240 */ 241 mvm->temperature = 0; 242 } else { 243 mvm->temperature_test = true; 244 mvm->temperature = temperature; 245 } 246 IWL_DEBUG_TEMP(mvm, "%sabling debug set temperature (temp = %d)\n", 247 mvm->temperature_test ? "En" : "Dis" , 248 mvm->temperature); 249 /* handle the temperature change */ 250 iwl_mvm_tt_handler(mvm); 251 252 out: 253 mutex_unlock(&mvm->mutex); 254 255 return count; 256 } 257 258 static ssize_t iwl_dbgfs_nic_temp_read(struct file *file, 259 char __user *user_buf, 260 size_t count, loff_t *ppos) 261 { 262 struct iwl_mvm *mvm = file->private_data; 263 char buf[16]; 264 int pos, temp; 265 266 if (!mvm->ucode_loaded) 267 return -EIO; 268 269 mutex_lock(&mvm->mutex); 270 temp = iwl_mvm_get_temp(mvm); 271 mutex_unlock(&mvm->mutex); 272 273 if (temp < 0) 274 return temp; 275 276 pos = scnprintf(buf , sizeof(buf), "%d\n", temp); 277 278 return simple_read_from_buffer(user_buf, count, ppos, buf, pos); 279 } 280 281 static ssize_t iwl_dbgfs_stations_read(struct file *file, char __user *user_buf, 282 size_t count, loff_t *ppos) 283 { 284 struct iwl_mvm *mvm = file->private_data; 285 struct ieee80211_sta *sta; 286 char buf[400]; 287 int i, pos = 0, bufsz = sizeof(buf); 288 289 mutex_lock(&mvm->mutex); 290 291 for (i = 0; i < IWL_MVM_STATION_COUNT; i++) { 292 pos += scnprintf(buf + pos, bufsz - pos, "%.2d: ", i); 293 sta = rcu_dereference_protected(mvm->fw_id_to_mac_id[i], 294 lockdep_is_held(&mvm->mutex)); 295 if (!sta) 296 pos += scnprintf(buf + pos, bufsz - pos, "N/A\n"); 297 else if (IS_ERR(sta)) 298 pos += scnprintf(buf + pos, bufsz - pos, "%ld\n", 299 PTR_ERR(sta)); 300 else 301 pos += scnprintf(buf + pos, bufsz - pos, "%pM\n", 302 sta->addr); 303 } 304 305 mutex_unlock(&mvm->mutex); 306 307 return simple_read_from_buffer(user_buf, count, ppos, buf, pos); 308 } 309 310 static ssize_t iwl_dbgfs_disable_power_off_read(struct file *file, 311 char __user *user_buf, 312 size_t count, loff_t *ppos) 313 { 314 struct iwl_mvm *mvm = file->private_data; 315 char buf[64]; 316 int bufsz = sizeof(buf); 317 int pos = 0; 318 319 pos += scnprintf(buf+pos, bufsz-pos, "disable_power_off_d0=%d\n", 320 mvm->disable_power_off); 321 pos += scnprintf(buf+pos, bufsz-pos, "disable_power_off_d3=%d\n", 322 mvm->disable_power_off_d3); 323 324 return simple_read_from_buffer(user_buf, count, ppos, buf, pos); 325 } 326 327 static ssize_t iwl_dbgfs_disable_power_off_write(struct iwl_mvm *mvm, char *buf, 328 size_t count, loff_t *ppos) 329 { 330 int ret, val; 331 332 if (!mvm->ucode_loaded) 333 return -EIO; 334 335 if (!strncmp("disable_power_off_d0=", buf, 21)) { 336 if (sscanf(buf + 21, "%d", &val) != 1) 337 return -EINVAL; 338 mvm->disable_power_off = val; 339 } else if (!strncmp("disable_power_off_d3=", buf, 21)) { 340 if (sscanf(buf + 21, "%d", &val) != 1) 341 return -EINVAL; 342 mvm->disable_power_off_d3 = val; 343 } else { 344 return -EINVAL; 345 } 346 347 mutex_lock(&mvm->mutex); 348 ret = iwl_mvm_power_update_device(mvm); 349 mutex_unlock(&mvm->mutex); 350 351 return ret ?: count; 352 } 353 354 #define BT_MBOX_MSG(_notif, _num, _field) \ 355 ((le32_to_cpu((_notif)->mbox_msg[(_num)]) & BT_MBOX##_num##_##_field)\ 356 >> BT_MBOX##_num##_##_field##_POS) 357 358 359 #define BT_MBOX_PRINT(_num, _field, _end) \ 360 pos += scnprintf(buf + pos, bufsz - pos, \ 361 "\t%s: %d%s", \ 362 #_field, \ 363 BT_MBOX_MSG(notif, _num, _field), \ 364 true ? "\n" : ", "); 365 366 static 367 int iwl_mvm_coex_dump_mbox(struct iwl_bt_coex_profile_notif *notif, char *buf, 368 int pos, int bufsz) 369 { 370 pos += scnprintf(buf+pos, bufsz-pos, "MBOX dw0:\n"); 371 372 BT_MBOX_PRINT(0, LE_SLAVE_LAT, false); 373 BT_MBOX_PRINT(0, LE_PROF1, false); 374 BT_MBOX_PRINT(0, LE_PROF2, false); 375 BT_MBOX_PRINT(0, LE_PROF_OTHER, false); 376 BT_MBOX_PRINT(0, CHL_SEQ_N, false); 377 BT_MBOX_PRINT(0, INBAND_S, false); 378 BT_MBOX_PRINT(0, LE_MIN_RSSI, false); 379 BT_MBOX_PRINT(0, LE_SCAN, false); 380 BT_MBOX_PRINT(0, LE_ADV, false); 381 BT_MBOX_PRINT(0, LE_MAX_TX_POWER, false); 382 BT_MBOX_PRINT(0, OPEN_CON_1, true); 383 384 pos += scnprintf(buf+pos, bufsz-pos, "MBOX dw1:\n"); 385 386 BT_MBOX_PRINT(1, BR_MAX_TX_POWER, false); 387 BT_MBOX_PRINT(1, IP_SR, false); 388 BT_MBOX_PRINT(1, LE_MSTR, false); 389 BT_MBOX_PRINT(1, AGGR_TRFC_LD, false); 390 BT_MBOX_PRINT(1, MSG_TYPE, false); 391 BT_MBOX_PRINT(1, SSN, true); 392 393 pos += scnprintf(buf+pos, bufsz-pos, "MBOX dw2:\n"); 394 395 BT_MBOX_PRINT(2, SNIFF_ACT, false); 396 BT_MBOX_PRINT(2, PAG, false); 397 BT_MBOX_PRINT(2, INQUIRY, false); 398 BT_MBOX_PRINT(2, CONN, false); 399 BT_MBOX_PRINT(2, SNIFF_INTERVAL, false); 400 BT_MBOX_PRINT(2, DISC, false); 401 BT_MBOX_PRINT(2, SCO_TX_ACT, false); 402 BT_MBOX_PRINT(2, SCO_RX_ACT, false); 403 BT_MBOX_PRINT(2, ESCO_RE_TX, false); 404 BT_MBOX_PRINT(2, SCO_DURATION, true); 405 406 pos += scnprintf(buf+pos, bufsz-pos, "MBOX dw3:\n"); 407 408 BT_MBOX_PRINT(3, SCO_STATE, false); 409 BT_MBOX_PRINT(3, SNIFF_STATE, false); 410 BT_MBOX_PRINT(3, A2DP_STATE, false); 411 BT_MBOX_PRINT(3, ACL_STATE, false); 412 BT_MBOX_PRINT(3, MSTR_STATE, false); 413 BT_MBOX_PRINT(3, OBX_STATE, false); 414 BT_MBOX_PRINT(3, OPEN_CON_2, false); 415 BT_MBOX_PRINT(3, TRAFFIC_LOAD, false); 416 BT_MBOX_PRINT(3, CHL_SEQN_LSB, false); 417 BT_MBOX_PRINT(3, INBAND_P, false); 418 BT_MBOX_PRINT(3, MSG_TYPE_2, false); 419 BT_MBOX_PRINT(3, SSN_2, false); 420 BT_MBOX_PRINT(3, UPDATE_REQUEST, true); 421 422 return pos; 423 } 424 425 static 426 int iwl_mvm_coex_dump_mbox_old(struct iwl_bt_coex_profile_notif_old *notif, 427 char *buf, int pos, int bufsz) 428 { 429 pos += scnprintf(buf+pos, bufsz-pos, "MBOX dw0:\n"); 430 431 BT_MBOX_PRINT(0, LE_SLAVE_LAT, false); 432 BT_MBOX_PRINT(0, LE_PROF1, false); 433 BT_MBOX_PRINT(0, LE_PROF2, false); 434 BT_MBOX_PRINT(0, LE_PROF_OTHER, false); 435 BT_MBOX_PRINT(0, CHL_SEQ_N, false); 436 BT_MBOX_PRINT(0, INBAND_S, false); 437 BT_MBOX_PRINT(0, LE_MIN_RSSI, false); 438 BT_MBOX_PRINT(0, LE_SCAN, false); 439 BT_MBOX_PRINT(0, LE_ADV, false); 440 BT_MBOX_PRINT(0, LE_MAX_TX_POWER, false); 441 BT_MBOX_PRINT(0, OPEN_CON_1, true); 442 443 pos += scnprintf(buf+pos, bufsz-pos, "MBOX dw1:\n"); 444 445 BT_MBOX_PRINT(1, BR_MAX_TX_POWER, false); 446 BT_MBOX_PRINT(1, IP_SR, false); 447 BT_MBOX_PRINT(1, LE_MSTR, false); 448 BT_MBOX_PRINT(1, AGGR_TRFC_LD, false); 449 BT_MBOX_PRINT(1, MSG_TYPE, false); 450 BT_MBOX_PRINT(1, SSN, true); 451 452 pos += scnprintf(buf+pos, bufsz-pos, "MBOX dw2:\n"); 453 454 BT_MBOX_PRINT(2, SNIFF_ACT, false); 455 BT_MBOX_PRINT(2, PAG, false); 456 BT_MBOX_PRINT(2, INQUIRY, false); 457 BT_MBOX_PRINT(2, CONN, false); 458 BT_MBOX_PRINT(2, SNIFF_INTERVAL, false); 459 BT_MBOX_PRINT(2, DISC, false); 460 BT_MBOX_PRINT(2, SCO_TX_ACT, false); 461 BT_MBOX_PRINT(2, SCO_RX_ACT, false); 462 BT_MBOX_PRINT(2, ESCO_RE_TX, false); 463 BT_MBOX_PRINT(2, SCO_DURATION, true); 464 465 pos += scnprintf(buf+pos, bufsz-pos, "MBOX dw3:\n"); 466 467 BT_MBOX_PRINT(3, SCO_STATE, false); 468 BT_MBOX_PRINT(3, SNIFF_STATE, false); 469 BT_MBOX_PRINT(3, A2DP_STATE, false); 470 BT_MBOX_PRINT(3, ACL_STATE, false); 471 BT_MBOX_PRINT(3, MSTR_STATE, false); 472 BT_MBOX_PRINT(3, OBX_STATE, false); 473 BT_MBOX_PRINT(3, OPEN_CON_2, false); 474 BT_MBOX_PRINT(3, TRAFFIC_LOAD, false); 475 BT_MBOX_PRINT(3, CHL_SEQN_LSB, false); 476 BT_MBOX_PRINT(3, INBAND_P, false); 477 BT_MBOX_PRINT(3, MSG_TYPE_2, false); 478 BT_MBOX_PRINT(3, SSN_2, false); 479 BT_MBOX_PRINT(3, UPDATE_REQUEST, true); 480 481 return pos; 482 } 483 484 static ssize_t iwl_dbgfs_bt_notif_read(struct file *file, char __user *user_buf, 485 size_t count, loff_t *ppos) 486 { 487 struct iwl_mvm *mvm = file->private_data; 488 char *buf; 489 int ret, pos = 0, bufsz = sizeof(char) * 1024; 490 491 buf = kmalloc(bufsz, GFP_KERNEL); 492 if (!buf) 493 return -ENOMEM; 494 495 mutex_lock(&mvm->mutex); 496 497 if (!fw_has_api(&mvm->fw->ucode_capa, 498 IWL_UCODE_TLV_API_BT_COEX_SPLIT)) { 499 struct iwl_bt_coex_profile_notif_old *notif = 500 &mvm->last_bt_notif_old; 501 502 pos += iwl_mvm_coex_dump_mbox_old(notif, buf, pos, bufsz); 503 504 pos += scnprintf(buf+pos, bufsz-pos, "bt_ci_compliance = %d\n", 505 notif->bt_ci_compliance); 506 pos += scnprintf(buf+pos, bufsz-pos, "primary_ch_lut = %d\n", 507 le32_to_cpu(notif->primary_ch_lut)); 508 pos += scnprintf(buf+pos, bufsz-pos, "secondary_ch_lut = %d\n", 509 le32_to_cpu(notif->secondary_ch_lut)); 510 pos += scnprintf(buf+pos, 511 bufsz-pos, "bt_activity_grading = %d\n", 512 le32_to_cpu(notif->bt_activity_grading)); 513 pos += scnprintf(buf+pos, bufsz-pos, 514 "antenna isolation = %d CORUN LUT index = %d\n", 515 mvm->last_ant_isol, mvm->last_corun_lut); 516 pos += scnprintf(buf + pos, bufsz - pos, "bt_rrc = %d\n", 517 notif->rrc_enabled); 518 pos += scnprintf(buf + pos, bufsz - pos, "bt_ttc = %d\n", 519 notif->ttc_enabled); 520 } else { 521 struct iwl_bt_coex_profile_notif *notif = 522 &mvm->last_bt_notif; 523 524 pos += iwl_mvm_coex_dump_mbox(notif, buf, pos, bufsz); 525 526 pos += scnprintf(buf+pos, bufsz-pos, "bt_ci_compliance = %d\n", 527 notif->bt_ci_compliance); 528 pos += scnprintf(buf+pos, bufsz-pos, "primary_ch_lut = %d\n", 529 le32_to_cpu(notif->primary_ch_lut)); 530 pos += scnprintf(buf+pos, bufsz-pos, "secondary_ch_lut = %d\n", 531 le32_to_cpu(notif->secondary_ch_lut)); 532 pos += scnprintf(buf+pos, 533 bufsz-pos, "bt_activity_grading = %d\n", 534 le32_to_cpu(notif->bt_activity_grading)); 535 pos += scnprintf(buf+pos, bufsz-pos, 536 "antenna isolation = %d CORUN LUT index = %d\n", 537 mvm->last_ant_isol, mvm->last_corun_lut); 538 pos += scnprintf(buf + pos, bufsz - pos, "bt_rrc = %d\n", 539 (notif->ttc_rrc_status >> 4) & 0xF); 540 pos += scnprintf(buf + pos, bufsz - pos, "bt_ttc = %d\n", 541 notif->ttc_rrc_status & 0xF); 542 } 543 544 pos += scnprintf(buf + pos, bufsz - pos, "sync_sco = %d\n", 545 IWL_MVM_BT_COEX_SYNC2SCO); 546 pos += scnprintf(buf + pos, bufsz - pos, "mplut = %d\n", 547 IWL_MVM_BT_COEX_MPLUT); 548 pos += scnprintf(buf + pos, bufsz - pos, "corunning = %d\n", 549 IWL_MVM_BT_COEX_CORUNNING); 550 551 mutex_unlock(&mvm->mutex); 552 553 ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos); 554 kfree(buf); 555 556 return ret; 557 } 558 #undef BT_MBOX_PRINT 559 560 static ssize_t iwl_dbgfs_bt_cmd_read(struct file *file, char __user *user_buf, 561 size_t count, loff_t *ppos) 562 { 563 struct iwl_mvm *mvm = file->private_data; 564 char buf[256]; 565 int bufsz = sizeof(buf); 566 int pos = 0; 567 568 mutex_lock(&mvm->mutex); 569 570 if (!fw_has_api(&mvm->fw->ucode_capa, 571 IWL_UCODE_TLV_API_BT_COEX_SPLIT)) { 572 struct iwl_bt_coex_ci_cmd_old *cmd = &mvm->last_bt_ci_cmd_old; 573 574 pos += scnprintf(buf+pos, bufsz-pos, 575 "Channel inhibition CMD\n"); 576 pos += scnprintf(buf+pos, bufsz-pos, 577 "\tPrimary Channel Bitmap 0x%016llx\n", 578 le64_to_cpu(cmd->bt_primary_ci)); 579 pos += scnprintf(buf+pos, bufsz-pos, 580 "\tSecondary Channel Bitmap 0x%016llx\n", 581 le64_to_cpu(cmd->bt_secondary_ci)); 582 583 pos += scnprintf(buf+pos, bufsz-pos, 584 "BT Configuration CMD - 0=default, 1=never, 2=always\n"); 585 pos += scnprintf(buf+pos, bufsz-pos, "\tACK Kill msk idx %d\n", 586 mvm->bt_ack_kill_msk[0]); 587 pos += scnprintf(buf+pos, bufsz-pos, "\tCTS Kill msk idx %d\n", 588 mvm->bt_cts_kill_msk[0]); 589 590 } else { 591 struct iwl_bt_coex_ci_cmd *cmd = &mvm->last_bt_ci_cmd; 592 593 pos += scnprintf(buf+pos, bufsz-pos, 594 "Channel inhibition CMD\n"); 595 pos += scnprintf(buf+pos, bufsz-pos, 596 "\tPrimary Channel Bitmap 0x%016llx\n", 597 le64_to_cpu(cmd->bt_primary_ci)); 598 pos += scnprintf(buf+pos, bufsz-pos, 599 "\tSecondary Channel Bitmap 0x%016llx\n", 600 le64_to_cpu(cmd->bt_secondary_ci)); 601 } 602 603 mutex_unlock(&mvm->mutex); 604 605 return simple_read_from_buffer(user_buf, count, ppos, buf, pos); 606 } 607 608 static ssize_t 609 iwl_dbgfs_bt_tx_prio_write(struct iwl_mvm *mvm, char *buf, 610 size_t count, loff_t *ppos) 611 { 612 u32 bt_tx_prio; 613 614 if (sscanf(buf, "%u", &bt_tx_prio) != 1) 615 return -EINVAL; 616 if (bt_tx_prio > 4) 617 return -EINVAL; 618 619 mvm->bt_tx_prio = bt_tx_prio; 620 621 return count; 622 } 623 624 static ssize_t 625 iwl_dbgfs_bt_force_ant_write(struct iwl_mvm *mvm, char *buf, 626 size_t count, loff_t *ppos) 627 { 628 static const char * const modes_str[BT_FORCE_ANT_MAX] = { 629 [BT_FORCE_ANT_DIS] = "dis", 630 [BT_FORCE_ANT_AUTO] = "auto", 631 [BT_FORCE_ANT_BT] = "bt", 632 [BT_FORCE_ANT_WIFI] = "wifi", 633 }; 634 int ret, bt_force_ant_mode; 635 636 for (bt_force_ant_mode = 0; 637 bt_force_ant_mode < ARRAY_SIZE(modes_str); 638 bt_force_ant_mode++) { 639 if (!strcmp(buf, modes_str[bt_force_ant_mode])) 640 break; 641 } 642 643 if (bt_force_ant_mode >= ARRAY_SIZE(modes_str)) 644 return -EINVAL; 645 646 ret = 0; 647 mutex_lock(&mvm->mutex); 648 if (mvm->bt_force_ant_mode == bt_force_ant_mode) 649 goto out; 650 651 mvm->bt_force_ant_mode = bt_force_ant_mode; 652 IWL_DEBUG_COEX(mvm, "Force mode: %s\n", 653 modes_str[mvm->bt_force_ant_mode]); 654 ret = iwl_send_bt_init_conf(mvm); 655 656 out: 657 mutex_unlock(&mvm->mutex); 658 return ret ?: count; 659 } 660 661 #define PRINT_STATS_LE32(_struct, _memb) \ 662 pos += scnprintf(buf + pos, bufsz - pos, \ 663 fmt_table, #_memb, \ 664 le32_to_cpu(_struct->_memb)) 665 666 static ssize_t iwl_dbgfs_fw_rx_stats_read(struct file *file, 667 char __user *user_buf, size_t count, 668 loff_t *ppos) 669 { 670 struct iwl_mvm *mvm = file->private_data; 671 static const char *fmt_table = "\t%-30s %10u\n"; 672 static const char *fmt_header = "%-32s\n"; 673 int pos = 0; 674 char *buf; 675 int ret; 676 /* 43 is the size of each data line, 33 is the size of each header */ 677 size_t bufsz = 678 ((sizeof(struct mvm_statistics_rx) / sizeof(__le32)) * 43) + 679 (4 * 33) + 1; 680 681 struct mvm_statistics_rx_phy *ofdm; 682 struct mvm_statistics_rx_phy *cck; 683 struct mvm_statistics_rx_non_phy *general; 684 struct mvm_statistics_rx_ht_phy *ht; 685 686 buf = kzalloc(bufsz, GFP_KERNEL); 687 if (!buf) 688 return -ENOMEM; 689 690 mutex_lock(&mvm->mutex); 691 692 ofdm = &mvm->rx_stats.ofdm; 693 cck = &mvm->rx_stats.cck; 694 general = &mvm->rx_stats.general; 695 ht = &mvm->rx_stats.ofdm_ht; 696 697 pos += scnprintf(buf + pos, bufsz - pos, fmt_header, 698 "Statistics_Rx - OFDM"); 699 PRINT_STATS_LE32(ofdm, ina_cnt); 700 PRINT_STATS_LE32(ofdm, fina_cnt); 701 PRINT_STATS_LE32(ofdm, plcp_err); 702 PRINT_STATS_LE32(ofdm, crc32_err); 703 PRINT_STATS_LE32(ofdm, overrun_err); 704 PRINT_STATS_LE32(ofdm, early_overrun_err); 705 PRINT_STATS_LE32(ofdm, crc32_good); 706 PRINT_STATS_LE32(ofdm, false_alarm_cnt); 707 PRINT_STATS_LE32(ofdm, fina_sync_err_cnt); 708 PRINT_STATS_LE32(ofdm, sfd_timeout); 709 PRINT_STATS_LE32(ofdm, fina_timeout); 710 PRINT_STATS_LE32(ofdm, unresponded_rts); 711 PRINT_STATS_LE32(ofdm, rxe_frame_lmt_overrun); 712 PRINT_STATS_LE32(ofdm, sent_ack_cnt); 713 PRINT_STATS_LE32(ofdm, sent_cts_cnt); 714 PRINT_STATS_LE32(ofdm, sent_ba_rsp_cnt); 715 PRINT_STATS_LE32(ofdm, dsp_self_kill); 716 PRINT_STATS_LE32(ofdm, mh_format_err); 717 PRINT_STATS_LE32(ofdm, re_acq_main_rssi_sum); 718 PRINT_STATS_LE32(ofdm, reserved); 719 720 pos += scnprintf(buf + pos, bufsz - pos, fmt_header, 721 "Statistics_Rx - CCK"); 722 PRINT_STATS_LE32(cck, ina_cnt); 723 PRINT_STATS_LE32(cck, fina_cnt); 724 PRINT_STATS_LE32(cck, plcp_err); 725 PRINT_STATS_LE32(cck, crc32_err); 726 PRINT_STATS_LE32(cck, overrun_err); 727 PRINT_STATS_LE32(cck, early_overrun_err); 728 PRINT_STATS_LE32(cck, crc32_good); 729 PRINT_STATS_LE32(cck, false_alarm_cnt); 730 PRINT_STATS_LE32(cck, fina_sync_err_cnt); 731 PRINT_STATS_LE32(cck, sfd_timeout); 732 PRINT_STATS_LE32(cck, fina_timeout); 733 PRINT_STATS_LE32(cck, unresponded_rts); 734 PRINT_STATS_LE32(cck, rxe_frame_lmt_overrun); 735 PRINT_STATS_LE32(cck, sent_ack_cnt); 736 PRINT_STATS_LE32(cck, sent_cts_cnt); 737 PRINT_STATS_LE32(cck, sent_ba_rsp_cnt); 738 PRINT_STATS_LE32(cck, dsp_self_kill); 739 PRINT_STATS_LE32(cck, mh_format_err); 740 PRINT_STATS_LE32(cck, re_acq_main_rssi_sum); 741 PRINT_STATS_LE32(cck, reserved); 742 743 pos += scnprintf(buf + pos, bufsz - pos, fmt_header, 744 "Statistics_Rx - GENERAL"); 745 PRINT_STATS_LE32(general, bogus_cts); 746 PRINT_STATS_LE32(general, bogus_ack); 747 PRINT_STATS_LE32(general, non_bssid_frames); 748 PRINT_STATS_LE32(general, filtered_frames); 749 PRINT_STATS_LE32(general, non_channel_beacons); 750 PRINT_STATS_LE32(general, channel_beacons); 751 PRINT_STATS_LE32(general, num_missed_bcon); 752 PRINT_STATS_LE32(general, adc_rx_saturation_time); 753 PRINT_STATS_LE32(general, ina_detection_search_time); 754 PRINT_STATS_LE32(general, beacon_silence_rssi_a); 755 PRINT_STATS_LE32(general, beacon_silence_rssi_b); 756 PRINT_STATS_LE32(general, beacon_silence_rssi_c); 757 PRINT_STATS_LE32(general, interference_data_flag); 758 PRINT_STATS_LE32(general, channel_load); 759 PRINT_STATS_LE32(general, dsp_false_alarms); 760 PRINT_STATS_LE32(general, beacon_rssi_a); 761 PRINT_STATS_LE32(general, beacon_rssi_b); 762 PRINT_STATS_LE32(general, beacon_rssi_c); 763 PRINT_STATS_LE32(general, beacon_energy_a); 764 PRINT_STATS_LE32(general, beacon_energy_b); 765 PRINT_STATS_LE32(general, beacon_energy_c); 766 PRINT_STATS_LE32(general, num_bt_kills); 767 PRINT_STATS_LE32(general, mac_id); 768 PRINT_STATS_LE32(general, directed_data_mpdu); 769 770 pos += scnprintf(buf + pos, bufsz - pos, fmt_header, 771 "Statistics_Rx - HT"); 772 PRINT_STATS_LE32(ht, plcp_err); 773 PRINT_STATS_LE32(ht, overrun_err); 774 PRINT_STATS_LE32(ht, early_overrun_err); 775 PRINT_STATS_LE32(ht, crc32_good); 776 PRINT_STATS_LE32(ht, crc32_err); 777 PRINT_STATS_LE32(ht, mh_format_err); 778 PRINT_STATS_LE32(ht, agg_crc32_good); 779 PRINT_STATS_LE32(ht, agg_mpdu_cnt); 780 PRINT_STATS_LE32(ht, agg_cnt); 781 PRINT_STATS_LE32(ht, unsupport_mcs); 782 783 mutex_unlock(&mvm->mutex); 784 785 ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos); 786 kfree(buf); 787 788 return ret; 789 } 790 #undef PRINT_STAT_LE32 791 792 static ssize_t iwl_dbgfs_frame_stats_read(struct iwl_mvm *mvm, 793 char __user *user_buf, size_t count, 794 loff_t *ppos, 795 struct iwl_mvm_frame_stats *stats) 796 { 797 char *buff, *pos, *endpos; 798 int idx, i; 799 int ret; 800 static const size_t bufsz = 1024; 801 802 buff = kmalloc(bufsz, GFP_KERNEL); 803 if (!buff) 804 return -ENOMEM; 805 806 spin_lock_bh(&mvm->drv_stats_lock); 807 808 pos = buff; 809 endpos = pos + bufsz; 810 811 pos += scnprintf(pos, endpos - pos, 812 "Legacy/HT/VHT\t:\t%d/%d/%d\n", 813 stats->legacy_frames, 814 stats->ht_frames, 815 stats->vht_frames); 816 pos += scnprintf(pos, endpos - pos, "20/40/80\t:\t%d/%d/%d\n", 817 stats->bw_20_frames, 818 stats->bw_40_frames, 819 stats->bw_80_frames); 820 pos += scnprintf(pos, endpos - pos, "NGI/SGI\t\t:\t%d/%d\n", 821 stats->ngi_frames, 822 stats->sgi_frames); 823 pos += scnprintf(pos, endpos - pos, "SISO/MIMO2\t:\t%d/%d\n", 824 stats->siso_frames, 825 stats->mimo2_frames); 826 pos += scnprintf(pos, endpos - pos, "FAIL/SCSS\t:\t%d/%d\n", 827 stats->fail_frames, 828 stats->success_frames); 829 pos += scnprintf(pos, endpos - pos, "MPDUs agg\t:\t%d\n", 830 stats->agg_frames); 831 pos += scnprintf(pos, endpos - pos, "A-MPDUs\t\t:\t%d\n", 832 stats->ampdu_count); 833 pos += scnprintf(pos, endpos - pos, "Avg MPDUs/A-MPDU:\t%d\n", 834 stats->ampdu_count > 0 ? 835 (stats->agg_frames / stats->ampdu_count) : 0); 836 837 pos += scnprintf(pos, endpos - pos, "Last Rates\n"); 838 839 idx = stats->last_frame_idx - 1; 840 for (i = 0; i < ARRAY_SIZE(stats->last_rates); i++) { 841 idx = (idx + 1) % ARRAY_SIZE(stats->last_rates); 842 if (stats->last_rates[idx] == 0) 843 continue; 844 pos += scnprintf(pos, endpos - pos, "Rate[%d]: ", 845 (int)(ARRAY_SIZE(stats->last_rates) - i)); 846 pos += rs_pretty_print_rate(pos, stats->last_rates[idx]); 847 } 848 spin_unlock_bh(&mvm->drv_stats_lock); 849 850 ret = simple_read_from_buffer(user_buf, count, ppos, buff, pos - buff); 851 kfree(buff); 852 853 return ret; 854 } 855 856 static ssize_t iwl_dbgfs_drv_rx_stats_read(struct file *file, 857 char __user *user_buf, size_t count, 858 loff_t *ppos) 859 { 860 struct iwl_mvm *mvm = file->private_data; 861 862 return iwl_dbgfs_frame_stats_read(mvm, user_buf, count, ppos, 863 &mvm->drv_rx_stats); 864 } 865 866 static ssize_t iwl_dbgfs_fw_restart_write(struct iwl_mvm *mvm, char *buf, 867 size_t count, loff_t *ppos) 868 { 869 int ret; 870 871 mutex_lock(&mvm->mutex); 872 873 /* allow one more restart that we're provoking here */ 874 if (mvm->restart_fw >= 0) 875 mvm->restart_fw++; 876 877 /* take the return value to make compiler happy - it will fail anyway */ 878 ret = iwl_mvm_send_cmd_pdu(mvm, REPLY_ERROR, 0, 0, NULL); 879 880 mutex_unlock(&mvm->mutex); 881 882 return count; 883 } 884 885 static ssize_t iwl_dbgfs_fw_nmi_write(struct iwl_mvm *mvm, char *buf, 886 size_t count, loff_t *ppos) 887 { 888 int ret = iwl_mvm_ref_sync(mvm, IWL_MVM_REF_NMI); 889 if (ret) 890 return ret; 891 892 iwl_force_nmi(mvm->trans); 893 894 iwl_mvm_unref(mvm, IWL_MVM_REF_NMI); 895 896 return count; 897 } 898 899 static ssize_t 900 iwl_dbgfs_scan_ant_rxchain_read(struct file *file, 901 char __user *user_buf, 902 size_t count, loff_t *ppos) 903 { 904 struct iwl_mvm *mvm = file->private_data; 905 int pos = 0; 906 char buf[32]; 907 const size_t bufsz = sizeof(buf); 908 909 /* print which antennas were set for the scan command by the user */ 910 pos += scnprintf(buf + pos, bufsz - pos, "Antennas for scan: "); 911 if (mvm->scan_rx_ant & ANT_A) 912 pos += scnprintf(buf + pos, bufsz - pos, "A"); 913 if (mvm->scan_rx_ant & ANT_B) 914 pos += scnprintf(buf + pos, bufsz - pos, "B"); 915 if (mvm->scan_rx_ant & ANT_C) 916 pos += scnprintf(buf + pos, bufsz - pos, "C"); 917 pos += scnprintf(buf + pos, bufsz - pos, " (%hhx)\n", mvm->scan_rx_ant); 918 919 return simple_read_from_buffer(user_buf, count, ppos, buf, pos); 920 } 921 922 static ssize_t 923 iwl_dbgfs_scan_ant_rxchain_write(struct iwl_mvm *mvm, char *buf, 924 size_t count, loff_t *ppos) 925 { 926 u8 scan_rx_ant; 927 928 if (sscanf(buf, "%hhx", &scan_rx_ant) != 1) 929 return -EINVAL; 930 if (scan_rx_ant > ANT_ABC) 931 return -EINVAL; 932 if (scan_rx_ant & ~(iwl_mvm_get_valid_rx_ant(mvm))) 933 return -EINVAL; 934 935 if (mvm->scan_rx_ant != scan_rx_ant) { 936 mvm->scan_rx_ant = scan_rx_ant; 937 if (fw_has_capa(&mvm->fw->ucode_capa, 938 IWL_UCODE_TLV_CAPA_UMAC_SCAN)) 939 iwl_mvm_config_scan(mvm); 940 } 941 942 return count; 943 } 944 945 static ssize_t iwl_dbgfs_fw_dbg_conf_read(struct file *file, 946 char __user *user_buf, 947 size_t count, loff_t *ppos) 948 { 949 struct iwl_mvm *mvm = file->private_data; 950 int conf; 951 char buf[8]; 952 const size_t bufsz = sizeof(buf); 953 int pos = 0; 954 955 mutex_lock(&mvm->mutex); 956 conf = mvm->fw_dbg_conf; 957 mutex_unlock(&mvm->mutex); 958 959 pos += scnprintf(buf + pos, bufsz - pos, "%d\n", conf); 960 961 return simple_read_from_buffer(user_buf, count, ppos, buf, pos); 962 } 963 964 /* 965 * Enable / Disable continuous recording. 966 * Cause the FW to start continuous recording, by sending the relevant hcmd. 967 * Enable: input of every integer larger than 0, ENABLE_CONT_RECORDING. 968 * Disable: for 0 as input, DISABLE_CONT_RECORDING. 969 */ 970 static ssize_t iwl_dbgfs_cont_recording_write(struct iwl_mvm *mvm, 971 char *buf, size_t count, 972 loff_t *ppos) 973 { 974 struct iwl_trans *trans = mvm->trans; 975 const struct iwl_fw_dbg_dest_tlv *dest = trans->dbg_dest_tlv; 976 struct iwl_continuous_record_cmd cont_rec = {}; 977 int ret, rec_mode; 978 979 if (!dest) 980 return -EOPNOTSUPP; 981 982 if (dest->monitor_mode != SMEM_MODE || 983 trans->cfg->device_family != IWL_DEVICE_FAMILY_8000) 984 return -EOPNOTSUPP; 985 986 ret = kstrtouint(buf, 0, &rec_mode); 987 if (ret) 988 return ret; 989 990 cont_rec.record_mode.enable_recording = rec_mode ? 991 cpu_to_le16(ENABLE_CONT_RECORDING) : 992 cpu_to_le16(DISABLE_CONT_RECORDING); 993 994 mutex_lock(&mvm->mutex); 995 ret = iwl_mvm_send_cmd_pdu(mvm, LDBG_CONFIG_CMD, 0, 996 sizeof(cont_rec), &cont_rec); 997 mutex_unlock(&mvm->mutex); 998 999 return ret ?: count; 1000 } 1001 1002 static ssize_t iwl_dbgfs_fw_dbg_conf_write(struct iwl_mvm *mvm, 1003 char *buf, size_t count, 1004 loff_t *ppos) 1005 { 1006 unsigned int conf_id; 1007 int ret; 1008 1009 ret = kstrtouint(buf, 0, &conf_id); 1010 if (ret) 1011 return ret; 1012 1013 if (WARN_ON(conf_id >= FW_DBG_CONF_MAX)) 1014 return -EINVAL; 1015 1016 mutex_lock(&mvm->mutex); 1017 ret = iwl_mvm_start_fw_dbg_conf(mvm, conf_id); 1018 mutex_unlock(&mvm->mutex); 1019 1020 return ret ?: count; 1021 } 1022 1023 static ssize_t iwl_dbgfs_fw_dbg_collect_write(struct iwl_mvm *mvm, 1024 char *buf, size_t count, 1025 loff_t *ppos) 1026 { 1027 int ret = iwl_mvm_ref_sync(mvm, IWL_MVM_REF_PRPH_WRITE); 1028 1029 if (ret) 1030 return ret; 1031 1032 iwl_mvm_fw_dbg_collect(mvm, FW_DBG_TRIGGER_USER, buf, 1033 (count - 1), NULL); 1034 1035 iwl_mvm_unref(mvm, IWL_MVM_REF_PRPH_WRITE); 1036 1037 return count; 1038 } 1039 1040 #define ADD_TEXT(...) pos += scnprintf(buf + pos, bufsz - pos, __VA_ARGS__) 1041 #ifdef CONFIG_IWLWIFI_BCAST_FILTERING 1042 static ssize_t iwl_dbgfs_bcast_filters_read(struct file *file, 1043 char __user *user_buf, 1044 size_t count, loff_t *ppos) 1045 { 1046 struct iwl_mvm *mvm = file->private_data; 1047 struct iwl_bcast_filter_cmd cmd; 1048 const struct iwl_fw_bcast_filter *filter; 1049 char *buf; 1050 int bufsz = 1024; 1051 int i, j, pos = 0; 1052 ssize_t ret; 1053 1054 buf = kzalloc(bufsz, GFP_KERNEL); 1055 if (!buf) 1056 return -ENOMEM; 1057 1058 mutex_lock(&mvm->mutex); 1059 if (!iwl_mvm_bcast_filter_build_cmd(mvm, &cmd)) { 1060 ADD_TEXT("None\n"); 1061 mutex_unlock(&mvm->mutex); 1062 goto out; 1063 } 1064 mutex_unlock(&mvm->mutex); 1065 1066 for (i = 0; cmd.filters[i].attrs[0].mask; i++) { 1067 filter = &cmd.filters[i]; 1068 1069 ADD_TEXT("Filter [%d]:\n", i); 1070 ADD_TEXT("\tDiscard=%d\n", filter->discard); 1071 ADD_TEXT("\tFrame Type: %s\n", 1072 filter->frame_type ? "IPv4" : "Generic"); 1073 1074 for (j = 0; j < ARRAY_SIZE(filter->attrs); j++) { 1075 const struct iwl_fw_bcast_filter_attr *attr; 1076 1077 attr = &filter->attrs[j]; 1078 if (!attr->mask) 1079 break; 1080 1081 ADD_TEXT("\tAttr [%d]: offset=%d (from %s), mask=0x%x, value=0x%x reserved=0x%x\n", 1082 j, attr->offset, 1083 attr->offset_type ? "IP End" : 1084 "Payload Start", 1085 be32_to_cpu(attr->mask), 1086 be32_to_cpu(attr->val), 1087 le16_to_cpu(attr->reserved1)); 1088 } 1089 } 1090 out: 1091 ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos); 1092 kfree(buf); 1093 return ret; 1094 } 1095 1096 static ssize_t iwl_dbgfs_bcast_filters_write(struct iwl_mvm *mvm, char *buf, 1097 size_t count, loff_t *ppos) 1098 { 1099 int pos, next_pos; 1100 struct iwl_fw_bcast_filter filter = {}; 1101 struct iwl_bcast_filter_cmd cmd; 1102 u32 filter_id, attr_id, mask, value; 1103 int err = 0; 1104 1105 if (sscanf(buf, "%d %hhi %hhi %n", &filter_id, &filter.discard, 1106 &filter.frame_type, &pos) != 3) 1107 return -EINVAL; 1108 1109 if (filter_id >= ARRAY_SIZE(mvm->dbgfs_bcast_filtering.cmd.filters) || 1110 filter.frame_type > BCAST_FILTER_FRAME_TYPE_IPV4) 1111 return -EINVAL; 1112 1113 for (attr_id = 0; attr_id < ARRAY_SIZE(filter.attrs); 1114 attr_id++) { 1115 struct iwl_fw_bcast_filter_attr *attr = 1116 &filter.attrs[attr_id]; 1117 1118 if (pos >= count) 1119 break; 1120 1121 if (sscanf(&buf[pos], "%hhi %hhi %i %i %n", 1122 &attr->offset, &attr->offset_type, 1123 &mask, &value, &next_pos) != 4) 1124 return -EINVAL; 1125 1126 attr->mask = cpu_to_be32(mask); 1127 attr->val = cpu_to_be32(value); 1128 if (mask) 1129 filter.num_attrs++; 1130 1131 pos += next_pos; 1132 } 1133 1134 mutex_lock(&mvm->mutex); 1135 memcpy(&mvm->dbgfs_bcast_filtering.cmd.filters[filter_id], 1136 &filter, sizeof(filter)); 1137 1138 /* send updated bcast filtering configuration */ 1139 if (mvm->dbgfs_bcast_filtering.override && 1140 iwl_mvm_bcast_filter_build_cmd(mvm, &cmd)) 1141 err = iwl_mvm_send_cmd_pdu(mvm, BCAST_FILTER_CMD, 0, 1142 sizeof(cmd), &cmd); 1143 mutex_unlock(&mvm->mutex); 1144 1145 return err ?: count; 1146 } 1147 1148 static ssize_t iwl_dbgfs_bcast_filters_macs_read(struct file *file, 1149 char __user *user_buf, 1150 size_t count, loff_t *ppos) 1151 { 1152 struct iwl_mvm *mvm = file->private_data; 1153 struct iwl_bcast_filter_cmd cmd; 1154 char *buf; 1155 int bufsz = 1024; 1156 int i, pos = 0; 1157 ssize_t ret; 1158 1159 buf = kzalloc(bufsz, GFP_KERNEL); 1160 if (!buf) 1161 return -ENOMEM; 1162 1163 mutex_lock(&mvm->mutex); 1164 if (!iwl_mvm_bcast_filter_build_cmd(mvm, &cmd)) { 1165 ADD_TEXT("None\n"); 1166 mutex_unlock(&mvm->mutex); 1167 goto out; 1168 } 1169 mutex_unlock(&mvm->mutex); 1170 1171 for (i = 0; i < ARRAY_SIZE(cmd.macs); i++) { 1172 const struct iwl_fw_bcast_mac *mac = &cmd.macs[i]; 1173 1174 ADD_TEXT("Mac [%d]: discard=%d attached_filters=0x%x\n", 1175 i, mac->default_discard, mac->attached_filters); 1176 } 1177 out: 1178 ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos); 1179 kfree(buf); 1180 return ret; 1181 } 1182 1183 static ssize_t iwl_dbgfs_bcast_filters_macs_write(struct iwl_mvm *mvm, 1184 char *buf, size_t count, 1185 loff_t *ppos) 1186 { 1187 struct iwl_bcast_filter_cmd cmd; 1188 struct iwl_fw_bcast_mac mac = {}; 1189 u32 mac_id, attached_filters; 1190 int err = 0; 1191 1192 if (!mvm->bcast_filters) 1193 return -ENOENT; 1194 1195 if (sscanf(buf, "%d %hhi %i", &mac_id, &mac.default_discard, 1196 &attached_filters) != 3) 1197 return -EINVAL; 1198 1199 if (mac_id >= ARRAY_SIZE(cmd.macs) || 1200 mac.default_discard > 1 || 1201 attached_filters >= BIT(ARRAY_SIZE(cmd.filters))) 1202 return -EINVAL; 1203 1204 mac.attached_filters = cpu_to_le16(attached_filters); 1205 1206 mutex_lock(&mvm->mutex); 1207 memcpy(&mvm->dbgfs_bcast_filtering.cmd.macs[mac_id], 1208 &mac, sizeof(mac)); 1209 1210 /* send updated bcast filtering configuration */ 1211 if (mvm->dbgfs_bcast_filtering.override && 1212 iwl_mvm_bcast_filter_build_cmd(mvm, &cmd)) 1213 err = iwl_mvm_send_cmd_pdu(mvm, BCAST_FILTER_CMD, 0, 1214 sizeof(cmd), &cmd); 1215 mutex_unlock(&mvm->mutex); 1216 1217 return err ?: count; 1218 } 1219 #endif 1220 1221 #ifdef CONFIG_PM_SLEEP 1222 static ssize_t iwl_dbgfs_d3_sram_write(struct iwl_mvm *mvm, char *buf, 1223 size_t count, loff_t *ppos) 1224 { 1225 int store; 1226 1227 if (sscanf(buf, "%d", &store) != 1) 1228 return -EINVAL; 1229 1230 mvm->store_d3_resume_sram = store; 1231 1232 return count; 1233 } 1234 1235 static ssize_t iwl_dbgfs_d3_sram_read(struct file *file, char __user *user_buf, 1236 size_t count, loff_t *ppos) 1237 { 1238 struct iwl_mvm *mvm = file->private_data; 1239 const struct fw_img *img; 1240 int ofs, len, pos = 0; 1241 size_t bufsz, ret; 1242 char *buf; 1243 u8 *ptr = mvm->d3_resume_sram; 1244 1245 img = &mvm->fw->img[IWL_UCODE_WOWLAN]; 1246 len = img->sec[IWL_UCODE_SECTION_DATA].len; 1247 1248 bufsz = len * 4 + 256; 1249 buf = kzalloc(bufsz, GFP_KERNEL); 1250 if (!buf) 1251 return -ENOMEM; 1252 1253 pos += scnprintf(buf, bufsz, "D3 SRAM capture: %sabled\n", 1254 mvm->store_d3_resume_sram ? "en" : "dis"); 1255 1256 if (ptr) { 1257 for (ofs = 0; ofs < len; ofs += 16) { 1258 pos += scnprintf(buf + pos, bufsz - pos, 1259 "0x%.4x %16ph\n", ofs, ptr + ofs); 1260 } 1261 } else { 1262 pos += scnprintf(buf + pos, bufsz - pos, 1263 "(no data captured)\n"); 1264 } 1265 1266 ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos); 1267 1268 kfree(buf); 1269 1270 return ret; 1271 } 1272 #endif 1273 1274 #define PRINT_MVM_REF(ref) do { \ 1275 if (mvm->refs[ref]) \ 1276 pos += scnprintf(buf + pos, bufsz - pos, \ 1277 "\t(0x%lx): %d %s\n", \ 1278 BIT(ref), mvm->refs[ref], #ref); \ 1279 } while (0) 1280 1281 static ssize_t iwl_dbgfs_d0i3_refs_read(struct file *file, 1282 char __user *user_buf, 1283 size_t count, loff_t *ppos) 1284 { 1285 struct iwl_mvm *mvm = file->private_data; 1286 int i, pos = 0; 1287 char buf[256]; 1288 const size_t bufsz = sizeof(buf); 1289 u32 refs = 0; 1290 1291 for (i = 0; i < IWL_MVM_REF_COUNT; i++) 1292 if (mvm->refs[i]) 1293 refs |= BIT(i); 1294 1295 pos += scnprintf(buf + pos, bufsz - pos, "taken mvm refs: 0x%x\n", 1296 refs); 1297 1298 PRINT_MVM_REF(IWL_MVM_REF_UCODE_DOWN); 1299 PRINT_MVM_REF(IWL_MVM_REF_SCAN); 1300 PRINT_MVM_REF(IWL_MVM_REF_ROC); 1301 PRINT_MVM_REF(IWL_MVM_REF_ROC_AUX); 1302 PRINT_MVM_REF(IWL_MVM_REF_P2P_CLIENT); 1303 PRINT_MVM_REF(IWL_MVM_REF_AP_IBSS); 1304 PRINT_MVM_REF(IWL_MVM_REF_USER); 1305 PRINT_MVM_REF(IWL_MVM_REF_TX); 1306 PRINT_MVM_REF(IWL_MVM_REF_TX_AGG); 1307 PRINT_MVM_REF(IWL_MVM_REF_ADD_IF); 1308 PRINT_MVM_REF(IWL_MVM_REF_START_AP); 1309 PRINT_MVM_REF(IWL_MVM_REF_BSS_CHANGED); 1310 PRINT_MVM_REF(IWL_MVM_REF_PREPARE_TX); 1311 PRINT_MVM_REF(IWL_MVM_REF_PROTECT_TDLS); 1312 PRINT_MVM_REF(IWL_MVM_REF_CHECK_CTKILL); 1313 PRINT_MVM_REF(IWL_MVM_REF_PRPH_READ); 1314 PRINT_MVM_REF(IWL_MVM_REF_PRPH_WRITE); 1315 PRINT_MVM_REF(IWL_MVM_REF_NMI); 1316 PRINT_MVM_REF(IWL_MVM_REF_TM_CMD); 1317 PRINT_MVM_REF(IWL_MVM_REF_EXIT_WORK); 1318 PRINT_MVM_REF(IWL_MVM_REF_PROTECT_CSA); 1319 PRINT_MVM_REF(IWL_MVM_REF_FW_DBG_COLLECT); 1320 PRINT_MVM_REF(IWL_MVM_REF_INIT_UCODE); 1321 1322 return simple_read_from_buffer(user_buf, count, ppos, buf, pos); 1323 } 1324 1325 static ssize_t iwl_dbgfs_d0i3_refs_write(struct iwl_mvm *mvm, char *buf, 1326 size_t count, loff_t *ppos) 1327 { 1328 unsigned long value; 1329 int ret; 1330 bool taken; 1331 1332 ret = kstrtoul(buf, 10, &value); 1333 if (ret < 0) 1334 return ret; 1335 1336 mutex_lock(&mvm->mutex); 1337 1338 taken = mvm->refs[IWL_MVM_REF_USER]; 1339 if (value == 1 && !taken) 1340 iwl_mvm_ref(mvm, IWL_MVM_REF_USER); 1341 else if (value == 0 && taken) 1342 iwl_mvm_unref(mvm, IWL_MVM_REF_USER); 1343 else 1344 ret = -EINVAL; 1345 1346 mutex_unlock(&mvm->mutex); 1347 1348 if (ret < 0) 1349 return ret; 1350 return count; 1351 } 1352 1353 #define MVM_DEBUGFS_WRITE_FILE_OPS(name, bufsz) \ 1354 _MVM_DEBUGFS_WRITE_FILE_OPS(name, bufsz, struct iwl_mvm) 1355 #define MVM_DEBUGFS_READ_WRITE_FILE_OPS(name, bufsz) \ 1356 _MVM_DEBUGFS_READ_WRITE_FILE_OPS(name, bufsz, struct iwl_mvm) 1357 #define MVM_DEBUGFS_ADD_FILE_ALIAS(alias, name, parent, mode) do { \ 1358 if (!debugfs_create_file(alias, mode, parent, mvm, \ 1359 &iwl_dbgfs_##name##_ops)) \ 1360 goto err; \ 1361 } while (0) 1362 #define MVM_DEBUGFS_ADD_FILE(name, parent, mode) \ 1363 MVM_DEBUGFS_ADD_FILE_ALIAS(#name, name, parent, mode) 1364 1365 static ssize_t 1366 iwl_dbgfs_prph_reg_read(struct file *file, 1367 char __user *user_buf, 1368 size_t count, loff_t *ppos) 1369 { 1370 struct iwl_mvm *mvm = file->private_data; 1371 int pos = 0; 1372 char buf[32]; 1373 const size_t bufsz = sizeof(buf); 1374 int ret; 1375 1376 if (!mvm->dbgfs_prph_reg_addr) 1377 return -EINVAL; 1378 1379 ret = iwl_mvm_ref_sync(mvm, IWL_MVM_REF_PRPH_READ); 1380 if (ret) 1381 return ret; 1382 1383 pos += scnprintf(buf + pos, bufsz - pos, "Reg 0x%x: (0x%x)\n", 1384 mvm->dbgfs_prph_reg_addr, 1385 iwl_read_prph(mvm->trans, mvm->dbgfs_prph_reg_addr)); 1386 1387 iwl_mvm_unref(mvm, IWL_MVM_REF_PRPH_READ); 1388 1389 return simple_read_from_buffer(user_buf, count, ppos, buf, pos); 1390 } 1391 1392 static ssize_t 1393 iwl_dbgfs_prph_reg_write(struct iwl_mvm *mvm, char *buf, 1394 size_t count, loff_t *ppos) 1395 { 1396 u8 args; 1397 u32 value; 1398 int ret; 1399 1400 args = sscanf(buf, "%i %i", &mvm->dbgfs_prph_reg_addr, &value); 1401 /* if we only want to set the reg address - nothing more to do */ 1402 if (args == 1) 1403 goto out; 1404 1405 /* otherwise, make sure we have both address and value */ 1406 if (args != 2) 1407 return -EINVAL; 1408 1409 ret = iwl_mvm_ref_sync(mvm, IWL_MVM_REF_PRPH_WRITE); 1410 if (ret) 1411 return ret; 1412 1413 iwl_write_prph(mvm->trans, mvm->dbgfs_prph_reg_addr, value); 1414 1415 iwl_mvm_unref(mvm, IWL_MVM_REF_PRPH_WRITE); 1416 out: 1417 return count; 1418 } 1419 1420 static ssize_t 1421 iwl_dbgfs_send_echo_cmd_write(struct iwl_mvm *mvm, char *buf, 1422 size_t count, loff_t *ppos) 1423 { 1424 int ret; 1425 1426 mutex_lock(&mvm->mutex); 1427 ret = iwl_mvm_send_cmd_pdu(mvm, ECHO_CMD, 0, 0, NULL); 1428 mutex_unlock(&mvm->mutex); 1429 1430 return ret ?: count; 1431 } 1432 1433 MVM_DEBUGFS_READ_WRITE_FILE_OPS(prph_reg, 64); 1434 1435 /* Device wide debugfs entries */ 1436 MVM_DEBUGFS_WRITE_FILE_OPS(tx_flush, 16); 1437 MVM_DEBUGFS_WRITE_FILE_OPS(sta_drain, 8); 1438 MVM_DEBUGFS_WRITE_FILE_OPS(send_echo_cmd, 8); 1439 MVM_DEBUGFS_READ_WRITE_FILE_OPS(sram, 64); 1440 MVM_DEBUGFS_READ_WRITE_FILE_OPS(set_nic_temperature, 64); 1441 MVM_DEBUGFS_READ_FILE_OPS(nic_temp); 1442 MVM_DEBUGFS_READ_FILE_OPS(stations); 1443 MVM_DEBUGFS_READ_FILE_OPS(bt_notif); 1444 MVM_DEBUGFS_READ_FILE_OPS(bt_cmd); 1445 MVM_DEBUGFS_READ_WRITE_FILE_OPS(disable_power_off, 64); 1446 MVM_DEBUGFS_READ_FILE_OPS(fw_rx_stats); 1447 MVM_DEBUGFS_READ_FILE_OPS(drv_rx_stats); 1448 MVM_DEBUGFS_WRITE_FILE_OPS(fw_restart, 10); 1449 MVM_DEBUGFS_WRITE_FILE_OPS(fw_nmi, 10); 1450 MVM_DEBUGFS_WRITE_FILE_OPS(bt_tx_prio, 10); 1451 MVM_DEBUGFS_WRITE_FILE_OPS(bt_force_ant, 10); 1452 MVM_DEBUGFS_READ_WRITE_FILE_OPS(scan_ant_rxchain, 8); 1453 MVM_DEBUGFS_READ_WRITE_FILE_OPS(d0i3_refs, 8); 1454 MVM_DEBUGFS_READ_WRITE_FILE_OPS(fw_dbg_conf, 8); 1455 MVM_DEBUGFS_WRITE_FILE_OPS(fw_dbg_collect, 64); 1456 MVM_DEBUGFS_WRITE_FILE_OPS(cont_recording, 8); 1457 1458 #ifdef CONFIG_IWLWIFI_BCAST_FILTERING 1459 MVM_DEBUGFS_READ_WRITE_FILE_OPS(bcast_filters, 256); 1460 MVM_DEBUGFS_READ_WRITE_FILE_OPS(bcast_filters_macs, 256); 1461 #endif 1462 1463 #ifdef CONFIG_PM_SLEEP 1464 MVM_DEBUGFS_READ_WRITE_FILE_OPS(d3_sram, 8); 1465 #endif 1466 1467 int iwl_mvm_dbgfs_register(struct iwl_mvm *mvm, struct dentry *dbgfs_dir) 1468 { 1469 struct dentry *bcast_dir __maybe_unused; 1470 char buf[100]; 1471 1472 spin_lock_init(&mvm->drv_stats_lock); 1473 1474 mvm->debugfs_dir = dbgfs_dir; 1475 1476 MVM_DEBUGFS_ADD_FILE(tx_flush, mvm->debugfs_dir, S_IWUSR); 1477 MVM_DEBUGFS_ADD_FILE(sta_drain, mvm->debugfs_dir, S_IWUSR); 1478 MVM_DEBUGFS_ADD_FILE(sram, mvm->debugfs_dir, S_IWUSR | S_IRUSR); 1479 MVM_DEBUGFS_ADD_FILE(set_nic_temperature, mvm->debugfs_dir, 1480 S_IWUSR | S_IRUSR); 1481 MVM_DEBUGFS_ADD_FILE(nic_temp, dbgfs_dir, S_IRUSR); 1482 MVM_DEBUGFS_ADD_FILE(stations, dbgfs_dir, S_IRUSR); 1483 MVM_DEBUGFS_ADD_FILE(bt_notif, dbgfs_dir, S_IRUSR); 1484 MVM_DEBUGFS_ADD_FILE(bt_cmd, dbgfs_dir, S_IRUSR); 1485 MVM_DEBUGFS_ADD_FILE(disable_power_off, mvm->debugfs_dir, 1486 S_IRUSR | S_IWUSR); 1487 MVM_DEBUGFS_ADD_FILE(fw_rx_stats, mvm->debugfs_dir, S_IRUSR); 1488 MVM_DEBUGFS_ADD_FILE(drv_rx_stats, mvm->debugfs_dir, S_IRUSR); 1489 MVM_DEBUGFS_ADD_FILE(fw_restart, mvm->debugfs_dir, S_IWUSR); 1490 MVM_DEBUGFS_ADD_FILE(fw_nmi, mvm->debugfs_dir, S_IWUSR); 1491 MVM_DEBUGFS_ADD_FILE(bt_tx_prio, mvm->debugfs_dir, S_IWUSR); 1492 MVM_DEBUGFS_ADD_FILE(bt_force_ant, mvm->debugfs_dir, S_IWUSR); 1493 MVM_DEBUGFS_ADD_FILE(scan_ant_rxchain, mvm->debugfs_dir, 1494 S_IWUSR | S_IRUSR); 1495 MVM_DEBUGFS_ADD_FILE(prph_reg, mvm->debugfs_dir, S_IWUSR | S_IRUSR); 1496 MVM_DEBUGFS_ADD_FILE(d0i3_refs, mvm->debugfs_dir, S_IRUSR | S_IWUSR); 1497 MVM_DEBUGFS_ADD_FILE(fw_dbg_conf, mvm->debugfs_dir, S_IRUSR | S_IWUSR); 1498 MVM_DEBUGFS_ADD_FILE(fw_dbg_collect, mvm->debugfs_dir, S_IWUSR); 1499 MVM_DEBUGFS_ADD_FILE(send_echo_cmd, mvm->debugfs_dir, S_IWUSR); 1500 MVM_DEBUGFS_ADD_FILE(cont_recording, mvm->debugfs_dir, S_IWUSR); 1501 if (!debugfs_create_bool("enable_scan_iteration_notif", 1502 S_IRUSR | S_IWUSR, 1503 mvm->debugfs_dir, 1504 &mvm->scan_iter_notif_enabled)) 1505 goto err; 1506 1507 #ifdef CONFIG_IWLWIFI_BCAST_FILTERING 1508 if (mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_BCAST_FILTERING) { 1509 bcast_dir = debugfs_create_dir("bcast_filtering", 1510 mvm->debugfs_dir); 1511 if (!bcast_dir) 1512 goto err; 1513 1514 if (!debugfs_create_bool("override", S_IRUSR | S_IWUSR, 1515 bcast_dir, 1516 &mvm->dbgfs_bcast_filtering.override)) 1517 goto err; 1518 1519 MVM_DEBUGFS_ADD_FILE_ALIAS("filters", bcast_filters, 1520 bcast_dir, S_IWUSR | S_IRUSR); 1521 MVM_DEBUGFS_ADD_FILE_ALIAS("macs", bcast_filters_macs, 1522 bcast_dir, S_IWUSR | S_IRUSR); 1523 } 1524 #endif 1525 1526 #ifdef CONFIG_PM_SLEEP 1527 MVM_DEBUGFS_ADD_FILE(d3_sram, mvm->debugfs_dir, S_IRUSR | S_IWUSR); 1528 MVM_DEBUGFS_ADD_FILE(d3_test, mvm->debugfs_dir, S_IRUSR); 1529 if (!debugfs_create_bool("d3_wake_sysassert", S_IRUSR | S_IWUSR, 1530 mvm->debugfs_dir, &mvm->d3_wake_sysassert)) 1531 goto err; 1532 if (!debugfs_create_u32("last_netdetect_scans", S_IRUSR, 1533 mvm->debugfs_dir, &mvm->last_netdetect_scans)) 1534 goto err; 1535 #endif 1536 1537 if (!debugfs_create_u8("ps_disabled", S_IRUSR, 1538 mvm->debugfs_dir, &mvm->ps_disabled)) 1539 goto err; 1540 if (!debugfs_create_blob("nvm_hw", S_IRUSR, 1541 mvm->debugfs_dir, &mvm->nvm_hw_blob)) 1542 goto err; 1543 if (!debugfs_create_blob("nvm_sw", S_IRUSR, 1544 mvm->debugfs_dir, &mvm->nvm_sw_blob)) 1545 goto err; 1546 if (!debugfs_create_blob("nvm_calib", S_IRUSR, 1547 mvm->debugfs_dir, &mvm->nvm_calib_blob)) 1548 goto err; 1549 if (!debugfs_create_blob("nvm_prod", S_IRUSR, 1550 mvm->debugfs_dir, &mvm->nvm_prod_blob)) 1551 goto err; 1552 if (!debugfs_create_blob("nvm_phy_sku", S_IRUSR, 1553 mvm->debugfs_dir, &mvm->nvm_phy_sku_blob)) 1554 goto err; 1555 1556 /* 1557 * Create a symlink with mac80211. It will be removed when mac80211 1558 * exists (before the opmode exists which removes the target.) 1559 */ 1560 snprintf(buf, 100, "../../%s/%s", 1561 dbgfs_dir->d_parent->d_parent->d_name.name, 1562 dbgfs_dir->d_parent->d_name.name); 1563 if (!debugfs_create_symlink("iwlwifi", mvm->hw->wiphy->debugfsdir, buf)) 1564 goto err; 1565 1566 return 0; 1567 err: 1568 IWL_ERR(mvm, "Can't create the mvm debugfs directory\n"); 1569 return -ENOMEM; 1570 } 1571