1 // SPDX-License-Identifier: GPL-2.0-only 2 /* 3 * NXP Wireless LAN device driver: debugfs 4 * 5 * Copyright 2011-2020 NXP 6 */ 7 8 #include <linux/debugfs.h> 9 10 #include "main.h" 11 #include "11n.h" 12 13 14 static struct dentry *mwifiex_dfs_dir; 15 16 static char *bss_modes[] = { 17 "UNSPECIFIED", 18 "ADHOC", 19 "STATION", 20 "AP", 21 "AP_VLAN", 22 "WDS", 23 "MONITOR", 24 "MESH_POINT", 25 "P2P_CLIENT", 26 "P2P_GO", 27 "P2P_DEVICE", 28 }; 29 30 /* 31 * Proc info file read handler. 32 * 33 * This function is called when the 'info' file is opened for reading. 34 * It prints the following driver related information - 35 * - Driver name 36 * - Driver version 37 * - Driver extended version 38 * - Interface name 39 * - BSS mode 40 * - Media state (connected or disconnected) 41 * - MAC address 42 * - Total number of Tx bytes 43 * - Total number of Rx bytes 44 * - Total number of Tx packets 45 * - Total number of Rx packets 46 * - Total number of dropped Tx packets 47 * - Total number of dropped Rx packets 48 * - Total number of corrupted Tx packets 49 * - Total number of corrupted Rx packets 50 * - Carrier status (on or off) 51 * - Tx queue status (started or stopped) 52 * 53 * For STA mode drivers, it also prints the following extra - 54 * - ESSID 55 * - BSSID 56 * - Channel 57 * - Region code 58 * - Multicast count 59 * - Multicast addresses 60 */ 61 static ssize_t 62 mwifiex_info_read(struct file *file, char __user *ubuf, 63 size_t count, loff_t *ppos) 64 { 65 struct mwifiex_private *priv = 66 (struct mwifiex_private *) file->private_data; 67 struct net_device *netdev = priv->netdev; 68 struct netdev_hw_addr *ha; 69 struct netdev_queue *txq; 70 unsigned long page = get_zeroed_page(GFP_KERNEL); 71 char *p = (char *) page, fmt[64]; 72 struct mwifiex_bss_info info; 73 ssize_t ret; 74 int i = 0; 75 76 if (!p) 77 return -ENOMEM; 78 79 memset(&info, 0, sizeof(info)); 80 ret = mwifiex_get_bss_info(priv, &info); 81 if (ret) 82 goto free_and_exit; 83 84 mwifiex_drv_get_driver_version(priv->adapter, fmt, sizeof(fmt) - 1); 85 86 mwifiex_get_ver_ext(priv, 0); 87 88 p += sprintf(p, "driver_name = " "\"mwifiex\"\n"); 89 p += sprintf(p, "driver_version = %s", fmt); 90 p += sprintf(p, "\nverext = %s", priv->version_str); 91 p += sprintf(p, "\ninterface_name=\"%s\"\n", netdev->name); 92 93 if (info.bss_mode >= ARRAY_SIZE(bss_modes)) 94 p += sprintf(p, "bss_mode=\"%d\"\n", info.bss_mode); 95 else 96 p += sprintf(p, "bss_mode=\"%s\"\n", bss_modes[info.bss_mode]); 97 98 p += sprintf(p, "media_state=\"%s\"\n", 99 (!priv->media_connected ? "Disconnected" : "Connected")); 100 p += sprintf(p, "mac_address=\"%pM\"\n", netdev->dev_addr); 101 102 if (GET_BSS_ROLE(priv) == MWIFIEX_BSS_ROLE_STA) { 103 p += sprintf(p, "multicast_count=\"%d\"\n", 104 netdev_mc_count(netdev)); 105 p += sprintf(p, "essid=\"%.*s\"\n", info.ssid.ssid_len, 106 info.ssid.ssid); 107 p += sprintf(p, "bssid=\"%pM\"\n", info.bssid); 108 p += sprintf(p, "channel=\"%d\"\n", (int) info.bss_chan); 109 p += sprintf(p, "country_code = \"%s\"\n", info.country_code); 110 p += sprintf(p, "region_code=\"0x%x\"\n", 111 priv->adapter->region_code); 112 113 netdev_for_each_mc_addr(ha, netdev) 114 p += sprintf(p, "multicast_address[%d]=\"%pM\"\n", 115 i++, ha->addr); 116 } 117 118 p += sprintf(p, "num_tx_bytes = %lu\n", priv->stats.tx_bytes); 119 p += sprintf(p, "num_rx_bytes = %lu\n", priv->stats.rx_bytes); 120 p += sprintf(p, "num_tx_pkts = %lu\n", priv->stats.tx_packets); 121 p += sprintf(p, "num_rx_pkts = %lu\n", priv->stats.rx_packets); 122 p += sprintf(p, "num_tx_pkts_dropped = %lu\n", priv->stats.tx_dropped); 123 p += sprintf(p, "num_rx_pkts_dropped = %lu\n", priv->stats.rx_dropped); 124 p += sprintf(p, "num_tx_pkts_err = %lu\n", priv->stats.tx_errors); 125 p += sprintf(p, "num_rx_pkts_err = %lu\n", priv->stats.rx_errors); 126 p += sprintf(p, "carrier %s\n", ((netif_carrier_ok(priv->netdev)) 127 ? "on" : "off")); 128 p += sprintf(p, "tx queue"); 129 for (i = 0; i < netdev->num_tx_queues; i++) { 130 txq = netdev_get_tx_queue(netdev, i); 131 p += sprintf(p, " %d:%s", i, netif_tx_queue_stopped(txq) ? 132 "stopped" : "started"); 133 } 134 p += sprintf(p, "\n"); 135 136 ret = simple_read_from_buffer(ubuf, count, ppos, (char *) page, 137 (unsigned long) p - page); 138 139 free_and_exit: 140 free_page(page); 141 return ret; 142 } 143 144 /* 145 * Proc getlog file read handler. 146 * 147 * This function is called when the 'getlog' file is opened for reading 148 * It prints the following log information - 149 * - Number of multicast Tx frames 150 * - Number of failed packets 151 * - Number of Tx retries 152 * - Number of multicast Tx retries 153 * - Number of duplicate frames 154 * - Number of RTS successes 155 * - Number of RTS failures 156 * - Number of ACK failures 157 * - Number of fragmented Rx frames 158 * - Number of multicast Rx frames 159 * - Number of FCS errors 160 * - Number of Tx frames 161 * - WEP ICV error counts 162 * - Number of received beacons 163 * - Number of missed beacons 164 */ 165 static ssize_t 166 mwifiex_getlog_read(struct file *file, char __user *ubuf, 167 size_t count, loff_t *ppos) 168 { 169 struct mwifiex_private *priv = 170 (struct mwifiex_private *) file->private_data; 171 unsigned long page = get_zeroed_page(GFP_KERNEL); 172 char *p = (char *) page; 173 ssize_t ret; 174 struct mwifiex_ds_get_stats stats; 175 176 if (!p) 177 return -ENOMEM; 178 179 memset(&stats, 0, sizeof(stats)); 180 ret = mwifiex_get_stats_info(priv, &stats); 181 if (ret) 182 goto free_and_exit; 183 184 p += sprintf(p, "\n" 185 "mcasttxframe %u\n" 186 "failed %u\n" 187 "retry %u\n" 188 "multiretry %u\n" 189 "framedup %u\n" 190 "rtssuccess %u\n" 191 "rtsfailure %u\n" 192 "ackfailure %u\n" 193 "rxfrag %u\n" 194 "mcastrxframe %u\n" 195 "fcserror %u\n" 196 "txframe %u\n" 197 "wepicverrcnt-1 %u\n" 198 "wepicverrcnt-2 %u\n" 199 "wepicverrcnt-3 %u\n" 200 "wepicverrcnt-4 %u\n" 201 "bcn_rcv_cnt %u\n" 202 "bcn_miss_cnt %u\n", 203 stats.mcast_tx_frame, 204 stats.failed, 205 stats.retry, 206 stats.multi_retry, 207 stats.frame_dup, 208 stats.rts_success, 209 stats.rts_failure, 210 stats.ack_failure, 211 stats.rx_frag, 212 stats.mcast_rx_frame, 213 stats.fcs_error, 214 stats.tx_frame, 215 stats.wep_icv_error[0], 216 stats.wep_icv_error[1], 217 stats.wep_icv_error[2], 218 stats.wep_icv_error[3], 219 stats.bcn_rcv_cnt, 220 stats.bcn_miss_cnt); 221 222 223 ret = simple_read_from_buffer(ubuf, count, ppos, (char *) page, 224 (unsigned long) p - page); 225 226 free_and_exit: 227 free_page(page); 228 return ret; 229 } 230 231 /* Sysfs histogram file read handler. 232 * 233 * This function is called when the 'histogram' file is opened for reading 234 * It prints the following histogram information - 235 * - Number of histogram samples 236 * - Receive packet number of each rx_rate 237 * - Receive packet number of each snr 238 * - Receive packet number of each nosie_flr 239 * - Receive packet number of each signal streath 240 */ 241 static ssize_t 242 mwifiex_histogram_read(struct file *file, char __user *ubuf, 243 size_t count, loff_t *ppos) 244 { 245 struct mwifiex_private *priv = 246 (struct mwifiex_private *)file->private_data; 247 ssize_t ret; 248 struct mwifiex_histogram_data *phist_data; 249 int i, value; 250 unsigned long page = get_zeroed_page(GFP_KERNEL); 251 char *p = (char *)page; 252 253 if (!p) 254 return -ENOMEM; 255 256 if (!priv || !priv->hist_data) { 257 ret = -EFAULT; 258 goto free_and_exit; 259 } 260 261 phist_data = priv->hist_data; 262 263 p += sprintf(p, "\n" 264 "total samples = %d\n", 265 atomic_read(&phist_data->num_samples)); 266 267 p += sprintf(p, 268 "rx rates (in Mbps): 0=1M 1=2M 2=5.5M 3=11M 4=6M 5=9M 6=12M\n" 269 "7=18M 8=24M 9=36M 10=48M 11=54M 12-27=MCS0-15(BW20) 28-43=MCS0-15(BW40)\n"); 270 271 if (ISSUPP_11ACENABLED(priv->adapter->fw_cap_info)) { 272 p += sprintf(p, 273 "44-53=MCS0-9(VHT:BW20) 54-63=MCS0-9(VHT:BW40) 64-73=MCS0-9(VHT:BW80)\n\n"); 274 } else { 275 p += sprintf(p, "\n"); 276 } 277 278 for (i = 0; i < MWIFIEX_MAX_RX_RATES; i++) { 279 value = atomic_read(&phist_data->rx_rate[i]); 280 if (value) 281 p += sprintf(p, "rx_rate[%02d] = %d\n", i, value); 282 } 283 284 if (ISSUPP_11ACENABLED(priv->adapter->fw_cap_info)) { 285 for (i = MWIFIEX_MAX_RX_RATES; i < MWIFIEX_MAX_AC_RX_RATES; 286 i++) { 287 value = atomic_read(&phist_data->rx_rate[i]); 288 if (value) 289 p += sprintf(p, "rx_rate[%02d] = %d\n", 290 i, value); 291 } 292 } 293 294 for (i = 0; i < MWIFIEX_MAX_SNR; i++) { 295 value = atomic_read(&phist_data->snr[i]); 296 if (value) 297 p += sprintf(p, "snr[%02ddB] = %d\n", i, value); 298 } 299 for (i = 0; i < MWIFIEX_MAX_NOISE_FLR; i++) { 300 value = atomic_read(&phist_data->noise_flr[i]); 301 if (value) 302 p += sprintf(p, "noise_flr[%02ddBm] = %d\n", 303 (int)(i-128), value); 304 } 305 for (i = 0; i < MWIFIEX_MAX_SIG_STRENGTH; i++) { 306 value = atomic_read(&phist_data->sig_str[i]); 307 if (value) 308 p += sprintf(p, "sig_strength[-%02ddBm] = %d\n", 309 i, value); 310 } 311 312 ret = simple_read_from_buffer(ubuf, count, ppos, (char *)page, 313 (unsigned long)p - page); 314 315 free_and_exit: 316 free_page(page); 317 return ret; 318 } 319 320 static ssize_t 321 mwifiex_histogram_write(struct file *file, const char __user *ubuf, 322 size_t count, loff_t *ppos) 323 { 324 struct mwifiex_private *priv = (void *)file->private_data; 325 326 if (priv && priv->hist_data) 327 mwifiex_hist_data_reset(priv); 328 return 0; 329 } 330 331 static struct mwifiex_debug_info info; 332 333 /* 334 * Proc debug file read handler. 335 * 336 * This function is called when the 'debug' file is opened for reading 337 * It prints the following log information - 338 * - Interrupt count 339 * - WMM AC VO packets count 340 * - WMM AC VI packets count 341 * - WMM AC BE packets count 342 * - WMM AC BK packets count 343 * - Maximum Tx buffer size 344 * - Tx buffer size 345 * - Current Tx buffer size 346 * - Power Save mode 347 * - Power Save state 348 * - Deep Sleep status 349 * - Device wakeup required status 350 * - Number of wakeup tries 351 * - Host Sleep configured status 352 * - Host Sleep activated status 353 * - Number of Tx timeouts 354 * - Number of command timeouts 355 * - Last timed out command ID 356 * - Last timed out command action 357 * - Last command ID 358 * - Last command action 359 * - Last command index 360 * - Last command response ID 361 * - Last command response index 362 * - Last event 363 * - Last event index 364 * - Number of host to card command failures 365 * - Number of sleep confirm command failures 366 * - Number of host to card data failure 367 * - Number of deauthentication events 368 * - Number of disassociation events 369 * - Number of link lost events 370 * - Number of deauthentication commands 371 * - Number of association success commands 372 * - Number of association failure commands 373 * - Number of commands sent 374 * - Number of data packets sent 375 * - Number of command responses received 376 * - Number of events received 377 * - Tx BA stream table (TID, RA) 378 * - Rx reorder table (TID, TA, Start window, Window size, Buffer) 379 */ 380 static ssize_t 381 mwifiex_debug_read(struct file *file, char __user *ubuf, 382 size_t count, loff_t *ppos) 383 { 384 struct mwifiex_private *priv = 385 (struct mwifiex_private *) file->private_data; 386 unsigned long page = get_zeroed_page(GFP_KERNEL); 387 char *p = (char *) page; 388 ssize_t ret; 389 390 if (!p) 391 return -ENOMEM; 392 393 ret = mwifiex_get_debug_info(priv, &info); 394 if (ret) 395 goto free_and_exit; 396 397 p += mwifiex_debug_info_to_buffer(priv, p, &info); 398 399 ret = simple_read_from_buffer(ubuf, count, ppos, (char *) page, 400 (unsigned long) p - page); 401 402 free_and_exit: 403 free_page(page); 404 return ret; 405 } 406 407 static u32 saved_reg_type, saved_reg_offset, saved_reg_value; 408 409 /* 410 * Proc regrdwr file write handler. 411 * 412 * This function is called when the 'regrdwr' file is opened for writing 413 * 414 * This function can be used to write to a register. 415 */ 416 static ssize_t 417 mwifiex_regrdwr_write(struct file *file, 418 const char __user *ubuf, size_t count, loff_t *ppos) 419 { 420 char *buf; 421 int ret; 422 u32 reg_type = 0, reg_offset = 0, reg_value = UINT_MAX; 423 424 buf = memdup_user_nul(ubuf, min(count, (size_t)(PAGE_SIZE - 1))); 425 if (IS_ERR(buf)) 426 return PTR_ERR(buf); 427 428 if (sscanf(buf, "%u %x %x", ®_type, ®_offset, ®_value) != 3) { 429 ret = -EINVAL; 430 goto done; 431 } 432 433 if (reg_type == 0 || reg_offset == 0) { 434 ret = -EINVAL; 435 goto done; 436 } else { 437 saved_reg_type = reg_type; 438 saved_reg_offset = reg_offset; 439 saved_reg_value = reg_value; 440 ret = count; 441 } 442 done: 443 kfree(buf); 444 return ret; 445 } 446 447 /* 448 * Proc regrdwr file read handler. 449 * 450 * This function is called when the 'regrdwr' file is opened for reading 451 * 452 * This function can be used to read from a register. 453 */ 454 static ssize_t 455 mwifiex_regrdwr_read(struct file *file, char __user *ubuf, 456 size_t count, loff_t *ppos) 457 { 458 struct mwifiex_private *priv = 459 (struct mwifiex_private *) file->private_data; 460 unsigned long addr = get_zeroed_page(GFP_KERNEL); 461 char *buf = (char *) addr; 462 int pos = 0, ret = 0; 463 u32 reg_value; 464 465 if (!buf) 466 return -ENOMEM; 467 468 if (!saved_reg_type) { 469 /* No command has been given */ 470 pos += snprintf(buf, PAGE_SIZE, "0"); 471 goto done; 472 } 473 /* Set command has been given */ 474 if (saved_reg_value != UINT_MAX) { 475 ret = mwifiex_reg_write(priv, saved_reg_type, saved_reg_offset, 476 saved_reg_value); 477 478 pos += snprintf(buf, PAGE_SIZE, "%u 0x%x 0x%x\n", 479 saved_reg_type, saved_reg_offset, 480 saved_reg_value); 481 482 ret = simple_read_from_buffer(ubuf, count, ppos, buf, pos); 483 484 goto done; 485 } 486 /* Get command has been given */ 487 ret = mwifiex_reg_read(priv, saved_reg_type, 488 saved_reg_offset, ®_value); 489 if (ret) { 490 ret = -EINVAL; 491 goto done; 492 } 493 494 pos += snprintf(buf, PAGE_SIZE, "%u 0x%x 0x%x\n", saved_reg_type, 495 saved_reg_offset, reg_value); 496 497 ret = simple_read_from_buffer(ubuf, count, ppos, buf, pos); 498 499 done: 500 free_page(addr); 501 return ret; 502 } 503 504 /* Proc debug_mask file read handler. 505 * This function is called when the 'debug_mask' file is opened for reading 506 * This function can be used read driver debugging mask value. 507 */ 508 static ssize_t 509 mwifiex_debug_mask_read(struct file *file, char __user *ubuf, 510 size_t count, loff_t *ppos) 511 { 512 struct mwifiex_private *priv = 513 (struct mwifiex_private *)file->private_data; 514 unsigned long page = get_zeroed_page(GFP_KERNEL); 515 char *buf = (char *)page; 516 size_t ret = 0; 517 int pos = 0; 518 519 if (!buf) 520 return -ENOMEM; 521 522 pos += snprintf(buf, PAGE_SIZE, "debug mask=0x%08x\n", 523 priv->adapter->debug_mask); 524 ret = simple_read_from_buffer(ubuf, count, ppos, buf, pos); 525 526 free_page(page); 527 return ret; 528 } 529 530 /* Proc debug_mask file read handler. 531 * This function is called when the 'debug_mask' file is opened for reading 532 * This function can be used read driver debugging mask value. 533 */ 534 static ssize_t 535 mwifiex_debug_mask_write(struct file *file, const char __user *ubuf, 536 size_t count, loff_t *ppos) 537 { 538 int ret; 539 unsigned long debug_mask; 540 struct mwifiex_private *priv = (void *)file->private_data; 541 char *buf; 542 543 buf = memdup_user_nul(ubuf, min(count, (size_t)(PAGE_SIZE - 1))); 544 if (IS_ERR(buf)) 545 return PTR_ERR(buf); 546 547 if (kstrtoul(buf, 0, &debug_mask)) { 548 ret = -EINVAL; 549 goto done; 550 } 551 552 priv->adapter->debug_mask = debug_mask; 553 ret = count; 554 done: 555 kfree(buf); 556 return ret; 557 } 558 559 /* debugfs verext file write handler. 560 * This function is called when the 'verext' file is opened for write 561 */ 562 static ssize_t 563 mwifiex_verext_write(struct file *file, const char __user *ubuf, 564 size_t count, loff_t *ppos) 565 { 566 int ret; 567 u32 versionstrsel; 568 struct mwifiex_private *priv = (void *)file->private_data; 569 570 ret = kstrtou32_from_user(ubuf, count, 10, &versionstrsel); 571 if (ret) 572 return ret; 573 574 priv->versionstrsel = versionstrsel; 575 576 return count; 577 } 578 579 /* Proc verext file read handler. 580 * This function is called when the 'verext' file is opened for reading 581 * This function can be used read driver exteneed verion string. 582 */ 583 static ssize_t 584 mwifiex_verext_read(struct file *file, char __user *ubuf, 585 size_t count, loff_t *ppos) 586 { 587 struct mwifiex_private *priv = 588 (struct mwifiex_private *)file->private_data; 589 char buf[256]; 590 int ret; 591 592 mwifiex_get_ver_ext(priv, priv->versionstrsel); 593 ret = snprintf(buf, sizeof(buf), "version string: %s\n", 594 priv->version_str); 595 596 return simple_read_from_buffer(ubuf, count, ppos, buf, ret); 597 } 598 599 /* Proc memrw file write handler. 600 * This function is called when the 'memrw' file is opened for writing 601 * This function can be used to write to a memory location. 602 */ 603 static ssize_t 604 mwifiex_memrw_write(struct file *file, const char __user *ubuf, size_t count, 605 loff_t *ppos) 606 { 607 int ret; 608 char cmd; 609 struct mwifiex_ds_mem_rw mem_rw; 610 u16 cmd_action; 611 struct mwifiex_private *priv = (void *)file->private_data; 612 char *buf; 613 614 buf = memdup_user_nul(ubuf, min(count, (size_t)(PAGE_SIZE - 1))); 615 if (IS_ERR(buf)) 616 return PTR_ERR(buf); 617 618 ret = sscanf(buf, "%c %x %x", &cmd, &mem_rw.addr, &mem_rw.value); 619 if (ret != 3) { 620 ret = -EINVAL; 621 goto done; 622 } 623 624 if ((cmd == 'r') || (cmd == 'R')) { 625 cmd_action = HostCmd_ACT_GEN_GET; 626 mem_rw.value = 0; 627 } else if ((cmd == 'w') || (cmd == 'W')) { 628 cmd_action = HostCmd_ACT_GEN_SET; 629 } else { 630 ret = -EINVAL; 631 goto done; 632 } 633 634 memcpy(&priv->mem_rw, &mem_rw, sizeof(mem_rw)); 635 if (mwifiex_send_cmd(priv, HostCmd_CMD_MEM_ACCESS, cmd_action, 0, 636 &mem_rw, true)) 637 ret = -1; 638 else 639 ret = count; 640 641 done: 642 kfree(buf); 643 return ret; 644 } 645 646 /* Proc memrw file read handler. 647 * This function is called when the 'memrw' file is opened for reading 648 * This function can be used to read from a memory location. 649 */ 650 static ssize_t 651 mwifiex_memrw_read(struct file *file, char __user *ubuf, 652 size_t count, loff_t *ppos) 653 { 654 struct mwifiex_private *priv = (void *)file->private_data; 655 unsigned long addr = get_zeroed_page(GFP_KERNEL); 656 char *buf = (char *)addr; 657 int ret, pos = 0; 658 659 if (!buf) 660 return -ENOMEM; 661 662 pos += snprintf(buf, PAGE_SIZE, "0x%x 0x%x\n", priv->mem_rw.addr, 663 priv->mem_rw.value); 664 ret = simple_read_from_buffer(ubuf, count, ppos, buf, pos); 665 666 free_page(addr); 667 return ret; 668 } 669 670 static u32 saved_offset = -1, saved_bytes = -1; 671 672 /* 673 * Proc rdeeprom file write handler. 674 * 675 * This function is called when the 'rdeeprom' file is opened for writing 676 * 677 * This function can be used to write to a RDEEPROM location. 678 */ 679 static ssize_t 680 mwifiex_rdeeprom_write(struct file *file, 681 const char __user *ubuf, size_t count, loff_t *ppos) 682 { 683 char *buf; 684 int ret = 0; 685 int offset = -1, bytes = -1; 686 687 buf = memdup_user_nul(ubuf, min(count, (size_t)(PAGE_SIZE - 1))); 688 if (IS_ERR(buf)) 689 return PTR_ERR(buf); 690 691 if (sscanf(buf, "%d %d", &offset, &bytes) != 2) { 692 ret = -EINVAL; 693 goto done; 694 } 695 696 if (offset == -1 || bytes == -1) { 697 ret = -EINVAL; 698 goto done; 699 } else { 700 saved_offset = offset; 701 saved_bytes = bytes; 702 ret = count; 703 } 704 done: 705 kfree(buf); 706 return ret; 707 } 708 709 /* 710 * Proc rdeeprom read write handler. 711 * 712 * This function is called when the 'rdeeprom' file is opened for reading 713 * 714 * This function can be used to read from a RDEEPROM location. 715 */ 716 static ssize_t 717 mwifiex_rdeeprom_read(struct file *file, char __user *ubuf, 718 size_t count, loff_t *ppos) 719 { 720 struct mwifiex_private *priv = 721 (struct mwifiex_private *) file->private_data; 722 unsigned long addr = get_zeroed_page(GFP_KERNEL); 723 char *buf = (char *) addr; 724 int pos, ret, i; 725 u8 value[MAX_EEPROM_DATA]; 726 727 if (!buf) 728 return -ENOMEM; 729 730 if (saved_offset == -1) { 731 /* No command has been given */ 732 pos = snprintf(buf, PAGE_SIZE, "0"); 733 goto done; 734 } 735 736 /* Get command has been given */ 737 ret = mwifiex_eeprom_read(priv, (u16) saved_offset, 738 (u16) saved_bytes, value); 739 if (ret) { 740 ret = -EINVAL; 741 goto out_free; 742 } 743 744 pos = snprintf(buf, PAGE_SIZE, "%d %d ", saved_offset, saved_bytes); 745 746 for (i = 0; i < saved_bytes; i++) 747 pos += scnprintf(buf + pos, PAGE_SIZE - pos, "%d ", value[i]); 748 749 done: 750 ret = simple_read_from_buffer(ubuf, count, ppos, buf, pos); 751 out_free: 752 free_page(addr); 753 return ret; 754 } 755 756 /* Proc hscfg file write handler 757 * This function can be used to configure the host sleep parameters. 758 */ 759 static ssize_t 760 mwifiex_hscfg_write(struct file *file, const char __user *ubuf, 761 size_t count, loff_t *ppos) 762 { 763 struct mwifiex_private *priv = (void *)file->private_data; 764 char *buf; 765 int ret, arg_num; 766 struct mwifiex_ds_hs_cfg hscfg; 767 int conditions = HS_CFG_COND_DEF; 768 u32 gpio = HS_CFG_GPIO_DEF, gap = HS_CFG_GAP_DEF; 769 770 buf = memdup_user_nul(ubuf, min(count, (size_t)(PAGE_SIZE - 1))); 771 if (IS_ERR(buf)) 772 return PTR_ERR(buf); 773 774 arg_num = sscanf(buf, "%d %x %x", &conditions, &gpio, &gap); 775 776 memset(&hscfg, 0, sizeof(struct mwifiex_ds_hs_cfg)); 777 778 if (arg_num > 3) { 779 mwifiex_dbg(priv->adapter, ERROR, 780 "Too many arguments\n"); 781 ret = -EINVAL; 782 goto done; 783 } 784 785 if (arg_num >= 1 && arg_num < 3) 786 mwifiex_set_hs_params(priv, HostCmd_ACT_GEN_GET, 787 MWIFIEX_SYNC_CMD, &hscfg); 788 789 if (arg_num) { 790 if (conditions == HS_CFG_CANCEL) { 791 mwifiex_cancel_hs(priv, MWIFIEX_ASYNC_CMD); 792 ret = count; 793 goto done; 794 } 795 hscfg.conditions = conditions; 796 } 797 if (arg_num >= 2) 798 hscfg.gpio = gpio; 799 if (arg_num == 3) 800 hscfg.gap = gap; 801 802 hscfg.is_invoke_hostcmd = false; 803 mwifiex_set_hs_params(priv, HostCmd_ACT_GEN_SET, 804 MWIFIEX_SYNC_CMD, &hscfg); 805 806 mwifiex_enable_hs(priv->adapter); 807 clear_bit(MWIFIEX_IS_HS_ENABLING, &priv->adapter->work_flags); 808 ret = count; 809 done: 810 kfree(buf); 811 return ret; 812 } 813 814 /* Proc hscfg file read handler 815 * This function can be used to read host sleep configuration 816 * parameters from driver. 817 */ 818 static ssize_t 819 mwifiex_hscfg_read(struct file *file, char __user *ubuf, 820 size_t count, loff_t *ppos) 821 { 822 struct mwifiex_private *priv = (void *)file->private_data; 823 unsigned long addr = get_zeroed_page(GFP_KERNEL); 824 char *buf = (char *)addr; 825 int pos, ret; 826 struct mwifiex_ds_hs_cfg hscfg; 827 828 if (!buf) 829 return -ENOMEM; 830 831 mwifiex_set_hs_params(priv, HostCmd_ACT_GEN_GET, 832 MWIFIEX_SYNC_CMD, &hscfg); 833 834 pos = snprintf(buf, PAGE_SIZE, "%u 0x%x 0x%x\n", hscfg.conditions, 835 hscfg.gpio, hscfg.gap); 836 837 ret = simple_read_from_buffer(ubuf, count, ppos, buf, pos); 838 839 free_page(addr); 840 return ret; 841 } 842 843 static ssize_t 844 mwifiex_timeshare_coex_read(struct file *file, char __user *ubuf, 845 size_t count, loff_t *ppos) 846 { 847 struct mwifiex_private *priv = file->private_data; 848 char buf[3]; 849 bool timeshare_coex; 850 int ret; 851 unsigned int len; 852 853 if (priv->adapter->fw_api_ver != MWIFIEX_FW_V15) 854 return -EOPNOTSUPP; 855 856 ret = mwifiex_send_cmd(priv, HostCmd_CMD_ROBUST_COEX, 857 HostCmd_ACT_GEN_GET, 0, ×hare_coex, true); 858 if (ret) 859 return ret; 860 861 len = sprintf(buf, "%d\n", timeshare_coex); 862 return simple_read_from_buffer(ubuf, count, ppos, buf, len); 863 } 864 865 static ssize_t 866 mwifiex_timeshare_coex_write(struct file *file, const char __user *ubuf, 867 size_t count, loff_t *ppos) 868 { 869 bool timeshare_coex; 870 struct mwifiex_private *priv = file->private_data; 871 int ret; 872 873 if (priv->adapter->fw_api_ver != MWIFIEX_FW_V15) 874 return -EOPNOTSUPP; 875 876 ret = kstrtobool_from_user(ubuf, count, ×hare_coex); 877 if (ret) 878 return ret; 879 880 ret = mwifiex_send_cmd(priv, HostCmd_CMD_ROBUST_COEX, 881 HostCmd_ACT_GEN_SET, 0, ×hare_coex, true); 882 if (ret) 883 return ret; 884 else 885 return count; 886 } 887 888 static ssize_t 889 mwifiex_reset_write(struct file *file, 890 const char __user *ubuf, size_t count, loff_t *ppos) 891 { 892 struct mwifiex_private *priv = file->private_data; 893 struct mwifiex_adapter *adapter = priv->adapter; 894 bool result; 895 int rc; 896 897 rc = kstrtobool_from_user(ubuf, count, &result); 898 if (rc) 899 return rc; 900 901 if (!result) 902 return -EINVAL; 903 904 if (adapter->if_ops.card_reset) { 905 dev_info(adapter->dev, "Resetting per request\n"); 906 adapter->if_ops.card_reset(adapter); 907 } 908 909 return count; 910 } 911 912 #define MWIFIEX_DFS_ADD_FILE(name) do { \ 913 debugfs_create_file(#name, 0644, priv->dfs_dev_dir, priv, \ 914 &mwifiex_dfs_##name##_fops); \ 915 } while (0); 916 917 #define MWIFIEX_DFS_FILE_OPS(name) \ 918 static const struct file_operations mwifiex_dfs_##name##_fops = { \ 919 .read = mwifiex_##name##_read, \ 920 .write = mwifiex_##name##_write, \ 921 .open = simple_open, \ 922 }; 923 924 #define MWIFIEX_DFS_FILE_READ_OPS(name) \ 925 static const struct file_operations mwifiex_dfs_##name##_fops = { \ 926 .read = mwifiex_##name##_read, \ 927 .open = simple_open, \ 928 }; 929 930 #define MWIFIEX_DFS_FILE_WRITE_OPS(name) \ 931 static const struct file_operations mwifiex_dfs_##name##_fops = { \ 932 .write = mwifiex_##name##_write, \ 933 .open = simple_open, \ 934 }; 935 936 937 MWIFIEX_DFS_FILE_READ_OPS(info); 938 MWIFIEX_DFS_FILE_READ_OPS(debug); 939 MWIFIEX_DFS_FILE_READ_OPS(getlog); 940 MWIFIEX_DFS_FILE_OPS(regrdwr); 941 MWIFIEX_DFS_FILE_OPS(rdeeprom); 942 MWIFIEX_DFS_FILE_OPS(memrw); 943 MWIFIEX_DFS_FILE_OPS(hscfg); 944 MWIFIEX_DFS_FILE_OPS(histogram); 945 MWIFIEX_DFS_FILE_OPS(debug_mask); 946 MWIFIEX_DFS_FILE_OPS(timeshare_coex); 947 MWIFIEX_DFS_FILE_WRITE_OPS(reset); 948 MWIFIEX_DFS_FILE_OPS(verext); 949 950 /* 951 * This function creates the debug FS directory structure and the files. 952 */ 953 void 954 mwifiex_dev_debugfs_init(struct mwifiex_private *priv) 955 { 956 if (!mwifiex_dfs_dir || !priv) 957 return; 958 959 priv->dfs_dev_dir = debugfs_create_dir(priv->netdev->name, 960 mwifiex_dfs_dir); 961 962 MWIFIEX_DFS_ADD_FILE(info); 963 MWIFIEX_DFS_ADD_FILE(debug); 964 MWIFIEX_DFS_ADD_FILE(getlog); 965 MWIFIEX_DFS_ADD_FILE(regrdwr); 966 MWIFIEX_DFS_ADD_FILE(rdeeprom); 967 968 MWIFIEX_DFS_ADD_FILE(memrw); 969 MWIFIEX_DFS_ADD_FILE(hscfg); 970 MWIFIEX_DFS_ADD_FILE(histogram); 971 MWIFIEX_DFS_ADD_FILE(debug_mask); 972 MWIFIEX_DFS_ADD_FILE(timeshare_coex); 973 MWIFIEX_DFS_ADD_FILE(reset); 974 MWIFIEX_DFS_ADD_FILE(verext); 975 } 976 977 /* 978 * This function removes the debug FS directory structure and the files. 979 */ 980 void 981 mwifiex_dev_debugfs_remove(struct mwifiex_private *priv) 982 { 983 if (!priv) 984 return; 985 986 debugfs_remove_recursive(priv->dfs_dev_dir); 987 } 988 989 /* 990 * This function creates the top level proc directory. 991 */ 992 void 993 mwifiex_debugfs_init(void) 994 { 995 if (!mwifiex_dfs_dir) 996 mwifiex_dfs_dir = debugfs_create_dir("mwifiex", NULL); 997 } 998 999 /* 1000 * This function removes the top level proc directory. 1001 */ 1002 void 1003 mwifiex_debugfs_remove(void) 1004 { 1005 debugfs_remove(mwifiex_dfs_dir); 1006 } 1007