1 /* 2 * Copyright (c) 2004-2011 Atheros Communications Inc. 3 * Copyright (c) 2011-2012 Qualcomm Atheros, Inc. 4 * 5 * Permission to use, copy, modify, and/or distribute this software for any 6 * purpose with or without fee is hereby granted, provided that the above 7 * copyright notice and this permission notice appear in all copies. 8 * 9 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES 10 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF 11 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR 12 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES 13 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN 14 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF 15 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. 16 */ 17 18 #include "core.h" 19 20 #include <linux/skbuff.h> 21 #include <linux/fs.h> 22 #include <linux/vmalloc.h> 23 #include <linux/export.h> 24 25 #include "debug.h" 26 #include "target.h" 27 28 struct ath6kl_fwlog_slot { 29 __le32 timestamp; 30 __le32 length; 31 32 /* max ATH6KL_FWLOG_PAYLOAD_SIZE bytes */ 33 u8 payload[0]; 34 }; 35 36 #define ATH6KL_FWLOG_MAX_ENTRIES 20 37 38 #define ATH6KL_FWLOG_VALID_MASK 0x1ffff 39 40 int ath6kl_printk(const char *level, const char *fmt, ...) 41 { 42 struct va_format vaf; 43 va_list args; 44 int rtn; 45 46 va_start(args, fmt); 47 48 vaf.fmt = fmt; 49 vaf.va = &args; 50 51 rtn = printk("%sath6kl: %pV", level, &vaf); 52 53 va_end(args); 54 55 return rtn; 56 } 57 EXPORT_SYMBOL(ath6kl_printk); 58 59 int ath6kl_info(const char *fmt, ...) 60 { 61 struct va_format vaf = { 62 .fmt = fmt, 63 }; 64 va_list args; 65 int ret; 66 67 va_start(args, fmt); 68 vaf.va = &args; 69 ret = ath6kl_printk(KERN_INFO, "%pV", &vaf); 70 trace_ath6kl_log_info(&vaf); 71 va_end(args); 72 73 return ret; 74 } 75 EXPORT_SYMBOL(ath6kl_info); 76 77 int ath6kl_err(const char *fmt, ...) 78 { 79 struct va_format vaf = { 80 .fmt = fmt, 81 }; 82 va_list args; 83 int ret; 84 85 va_start(args, fmt); 86 vaf.va = &args; 87 ret = ath6kl_printk(KERN_ERR, "%pV", &vaf); 88 trace_ath6kl_log_err(&vaf); 89 va_end(args); 90 91 return ret; 92 } 93 EXPORT_SYMBOL(ath6kl_err); 94 95 int ath6kl_warn(const char *fmt, ...) 96 { 97 struct va_format vaf = { 98 .fmt = fmt, 99 }; 100 va_list args; 101 int ret; 102 103 va_start(args, fmt); 104 vaf.va = &args; 105 ret = ath6kl_printk(KERN_WARNING, "%pV", &vaf); 106 trace_ath6kl_log_warn(&vaf); 107 va_end(args); 108 109 return ret; 110 } 111 EXPORT_SYMBOL(ath6kl_warn); 112 113 #ifdef CONFIG_ATH6KL_DEBUG 114 115 void ath6kl_dbg(enum ATH6K_DEBUG_MASK mask, const char *fmt, ...) 116 { 117 struct va_format vaf; 118 va_list args; 119 120 va_start(args, fmt); 121 122 vaf.fmt = fmt; 123 vaf.va = &args; 124 125 if (debug_mask & mask) 126 ath6kl_printk(KERN_DEBUG, "%pV", &vaf); 127 128 trace_ath6kl_log_dbg(mask, &vaf); 129 130 va_end(args); 131 } 132 EXPORT_SYMBOL(ath6kl_dbg); 133 134 void ath6kl_dbg_dump(enum ATH6K_DEBUG_MASK mask, 135 const char *msg, const char *prefix, 136 const void *buf, size_t len) 137 { 138 if (debug_mask & mask) { 139 if (msg) 140 ath6kl_dbg(mask, "%s\n", msg); 141 142 print_hex_dump_bytes(prefix, DUMP_PREFIX_OFFSET, buf, len); 143 } 144 145 /* tracing code doesn't like null strings :/ */ 146 trace_ath6kl_log_dbg_dump(msg ? msg : "", prefix ? prefix : "", 147 buf, len); 148 } 149 EXPORT_SYMBOL(ath6kl_dbg_dump); 150 151 #define REG_OUTPUT_LEN_PER_LINE 25 152 #define REGTYPE_STR_LEN 100 153 154 struct ath6kl_diag_reg_info { 155 u32 reg_start; 156 u32 reg_end; 157 const char *reg_info; 158 }; 159 160 static const struct ath6kl_diag_reg_info diag_reg[] = { 161 { 0x20000, 0x200fc, "General DMA and Rx registers" }, 162 { 0x28000, 0x28900, "MAC PCU register & keycache" }, 163 { 0x20800, 0x20a40, "QCU" }, 164 { 0x21000, 0x212f0, "DCU" }, 165 { 0x4000, 0x42e4, "RTC" }, 166 { 0x540000, 0x540000 + (256 * 1024), "RAM" }, 167 { 0x29800, 0x2B210, "Base Band" }, 168 { 0x1C000, 0x1C748, "Analog" }, 169 }; 170 171 void ath6kl_dump_registers(struct ath6kl_device *dev, 172 struct ath6kl_irq_proc_registers *irq_proc_reg, 173 struct ath6kl_irq_enable_reg *irq_enable_reg) 174 { 175 176 ath6kl_dbg(ATH6KL_DBG_IRQ, ("<------- Register Table -------->\n")); 177 178 if (irq_proc_reg != NULL) { 179 ath6kl_dbg(ATH6KL_DBG_IRQ, 180 "Host Int status: 0x%x\n", 181 irq_proc_reg->host_int_status); 182 ath6kl_dbg(ATH6KL_DBG_IRQ, 183 "CPU Int status: 0x%x\n", 184 irq_proc_reg->cpu_int_status); 185 ath6kl_dbg(ATH6KL_DBG_IRQ, 186 "Error Int status: 0x%x\n", 187 irq_proc_reg->error_int_status); 188 ath6kl_dbg(ATH6KL_DBG_IRQ, 189 "Counter Int status: 0x%x\n", 190 irq_proc_reg->counter_int_status); 191 ath6kl_dbg(ATH6KL_DBG_IRQ, 192 "Mbox Frame: 0x%x\n", 193 irq_proc_reg->mbox_frame); 194 ath6kl_dbg(ATH6KL_DBG_IRQ, 195 "Rx Lookahead Valid: 0x%x\n", 196 irq_proc_reg->rx_lkahd_valid); 197 ath6kl_dbg(ATH6KL_DBG_IRQ, 198 "Rx Lookahead 0: 0x%x\n", 199 irq_proc_reg->rx_lkahd[0]); 200 ath6kl_dbg(ATH6KL_DBG_IRQ, 201 "Rx Lookahead 1: 0x%x\n", 202 irq_proc_reg->rx_lkahd[1]); 203 204 if (dev->ar->mbox_info.gmbox_addr != 0) { 205 /* 206 * If the target supports GMBOX hardware, dump some 207 * additional state. 208 */ 209 ath6kl_dbg(ATH6KL_DBG_IRQ, 210 "GMBOX Host Int status 2: 0x%x\n", 211 irq_proc_reg->host_int_status2); 212 ath6kl_dbg(ATH6KL_DBG_IRQ, 213 "GMBOX RX Avail: 0x%x\n", 214 irq_proc_reg->gmbox_rx_avail); 215 ath6kl_dbg(ATH6KL_DBG_IRQ, 216 "GMBOX lookahead alias 0: 0x%x\n", 217 irq_proc_reg->rx_gmbox_lkahd_alias[0]); 218 ath6kl_dbg(ATH6KL_DBG_IRQ, 219 "GMBOX lookahead alias 1: 0x%x\n", 220 irq_proc_reg->rx_gmbox_lkahd_alias[1]); 221 } 222 223 } 224 225 if (irq_enable_reg != NULL) { 226 ath6kl_dbg(ATH6KL_DBG_IRQ, 227 "Int status Enable: 0x%x\n", 228 irq_enable_reg->int_status_en); 229 ath6kl_dbg(ATH6KL_DBG_IRQ, "Counter Int status Enable: 0x%x\n", 230 irq_enable_reg->cntr_int_status_en); 231 } 232 ath6kl_dbg(ATH6KL_DBG_IRQ, "<------------------------------->\n"); 233 } 234 235 static void dump_cred_dist(struct htc_endpoint_credit_dist *ep_dist) 236 { 237 ath6kl_dbg(ATH6KL_DBG_CREDIT, 238 "--- endpoint: %d svc_id: 0x%X ---\n", 239 ep_dist->endpoint, ep_dist->svc_id); 240 ath6kl_dbg(ATH6KL_DBG_CREDIT, " dist_flags : 0x%X\n", 241 ep_dist->dist_flags); 242 ath6kl_dbg(ATH6KL_DBG_CREDIT, " cred_norm : %d\n", 243 ep_dist->cred_norm); 244 ath6kl_dbg(ATH6KL_DBG_CREDIT, " cred_min : %d\n", 245 ep_dist->cred_min); 246 ath6kl_dbg(ATH6KL_DBG_CREDIT, " credits : %d\n", 247 ep_dist->credits); 248 ath6kl_dbg(ATH6KL_DBG_CREDIT, " cred_assngd : %d\n", 249 ep_dist->cred_assngd); 250 ath6kl_dbg(ATH6KL_DBG_CREDIT, " seek_cred : %d\n", 251 ep_dist->seek_cred); 252 ath6kl_dbg(ATH6KL_DBG_CREDIT, " cred_sz : %d\n", 253 ep_dist->cred_sz); 254 ath6kl_dbg(ATH6KL_DBG_CREDIT, " cred_per_msg : %d\n", 255 ep_dist->cred_per_msg); 256 ath6kl_dbg(ATH6KL_DBG_CREDIT, " cred_to_dist : %d\n", 257 ep_dist->cred_to_dist); 258 ath6kl_dbg(ATH6KL_DBG_CREDIT, " txq_depth : %d\n", 259 get_queue_depth(&ep_dist->htc_ep->txq)); 260 ath6kl_dbg(ATH6KL_DBG_CREDIT, 261 "----------------------------------\n"); 262 } 263 264 /* FIXME: move to htc.c */ 265 void dump_cred_dist_stats(struct htc_target *target) 266 { 267 struct htc_endpoint_credit_dist *ep_list; 268 269 list_for_each_entry(ep_list, &target->cred_dist_list, list) 270 dump_cred_dist(ep_list); 271 272 ath6kl_dbg(ATH6KL_DBG_CREDIT, 273 "credit distribution total %d free %d\n", 274 target->credit_info->total_avail_credits, 275 target->credit_info->cur_free_credits); 276 } 277 278 void ath6kl_debug_war(struct ath6kl *ar, enum ath6kl_war war) 279 { 280 switch (war) { 281 case ATH6KL_WAR_INVALID_RATE: 282 ar->debug.war_stats.invalid_rate++; 283 break; 284 } 285 } 286 287 static ssize_t read_file_war_stats(struct file *file, char __user *user_buf, 288 size_t count, loff_t *ppos) 289 { 290 struct ath6kl *ar = file->private_data; 291 char *buf; 292 unsigned int len = 0, buf_len = 1500; 293 ssize_t ret_cnt; 294 295 buf = kzalloc(buf_len, GFP_KERNEL); 296 if (!buf) 297 return -ENOMEM; 298 299 len += scnprintf(buf + len, buf_len - len, "\n"); 300 len += scnprintf(buf + len, buf_len - len, "%25s\n", 301 "Workaround stats"); 302 len += scnprintf(buf + len, buf_len - len, "%25s\n\n", 303 "================="); 304 len += scnprintf(buf + len, buf_len - len, "%20s %10u\n", 305 "Invalid rates", ar->debug.war_stats.invalid_rate); 306 307 if (WARN_ON(len > buf_len)) 308 len = buf_len; 309 310 ret_cnt = simple_read_from_buffer(user_buf, count, ppos, buf, len); 311 312 kfree(buf); 313 return ret_cnt; 314 } 315 316 static const struct file_operations fops_war_stats = { 317 .read = read_file_war_stats, 318 .open = simple_open, 319 .owner = THIS_MODULE, 320 .llseek = default_llseek, 321 }; 322 323 void ath6kl_debug_fwlog_event(struct ath6kl *ar, const void *buf, size_t len) 324 { 325 struct ath6kl_fwlog_slot *slot; 326 struct sk_buff *skb; 327 size_t slot_len; 328 329 if (WARN_ON(len > ATH6KL_FWLOG_PAYLOAD_SIZE)) 330 return; 331 332 slot_len = sizeof(*slot) + ATH6KL_FWLOG_PAYLOAD_SIZE; 333 334 skb = alloc_skb(slot_len, GFP_KERNEL); 335 if (!skb) 336 return; 337 338 slot = (struct ath6kl_fwlog_slot *) skb_put(skb, slot_len); 339 slot->timestamp = cpu_to_le32(jiffies); 340 slot->length = cpu_to_le32(len); 341 memcpy(slot->payload, buf, len); 342 343 /* Need to pad each record to fixed length ATH6KL_FWLOG_PAYLOAD_SIZE */ 344 memset(slot->payload + len, 0, ATH6KL_FWLOG_PAYLOAD_SIZE - len); 345 346 spin_lock(&ar->debug.fwlog_queue.lock); 347 348 __skb_queue_tail(&ar->debug.fwlog_queue, skb); 349 complete(&ar->debug.fwlog_completion); 350 351 /* drop oldest entries */ 352 while (skb_queue_len(&ar->debug.fwlog_queue) > 353 ATH6KL_FWLOG_MAX_ENTRIES) { 354 skb = __skb_dequeue(&ar->debug.fwlog_queue); 355 kfree_skb(skb); 356 } 357 358 spin_unlock(&ar->debug.fwlog_queue.lock); 359 360 return; 361 } 362 363 static int ath6kl_fwlog_open(struct inode *inode, struct file *file) 364 { 365 struct ath6kl *ar = inode->i_private; 366 367 if (ar->debug.fwlog_open) 368 return -EBUSY; 369 370 ar->debug.fwlog_open = true; 371 372 file->private_data = inode->i_private; 373 return 0; 374 } 375 376 static int ath6kl_fwlog_release(struct inode *inode, struct file *file) 377 { 378 struct ath6kl *ar = inode->i_private; 379 380 ar->debug.fwlog_open = false; 381 382 return 0; 383 } 384 385 static ssize_t ath6kl_fwlog_read(struct file *file, char __user *user_buf, 386 size_t count, loff_t *ppos) 387 { 388 struct ath6kl *ar = file->private_data; 389 struct sk_buff *skb; 390 ssize_t ret_cnt; 391 size_t len = 0; 392 char *buf; 393 394 buf = vmalloc(count); 395 if (!buf) 396 return -ENOMEM; 397 398 /* read undelivered logs from firmware */ 399 ath6kl_read_fwlogs(ar); 400 401 spin_lock(&ar->debug.fwlog_queue.lock); 402 403 while ((skb = __skb_dequeue(&ar->debug.fwlog_queue))) { 404 if (skb->len > count - len) { 405 /* not enough space, put skb back and leave */ 406 __skb_queue_head(&ar->debug.fwlog_queue, skb); 407 break; 408 } 409 410 411 memcpy(buf + len, skb->data, skb->len); 412 len += skb->len; 413 414 kfree_skb(skb); 415 } 416 417 spin_unlock(&ar->debug.fwlog_queue.lock); 418 419 /* FIXME: what to do if len == 0? */ 420 421 ret_cnt = simple_read_from_buffer(user_buf, count, ppos, buf, len); 422 423 vfree(buf); 424 425 return ret_cnt; 426 } 427 428 static const struct file_operations fops_fwlog = { 429 .open = ath6kl_fwlog_open, 430 .release = ath6kl_fwlog_release, 431 .read = ath6kl_fwlog_read, 432 .owner = THIS_MODULE, 433 .llseek = default_llseek, 434 }; 435 436 static ssize_t ath6kl_fwlog_block_read(struct file *file, 437 char __user *user_buf, 438 size_t count, 439 loff_t *ppos) 440 { 441 struct ath6kl *ar = file->private_data; 442 struct sk_buff *skb; 443 ssize_t ret_cnt; 444 size_t len = 0, not_copied; 445 char *buf; 446 int ret; 447 448 buf = vmalloc(count); 449 if (!buf) 450 return -ENOMEM; 451 452 spin_lock(&ar->debug.fwlog_queue.lock); 453 454 if (skb_queue_len(&ar->debug.fwlog_queue) == 0) { 455 /* we must init under queue lock */ 456 init_completion(&ar->debug.fwlog_completion); 457 458 spin_unlock(&ar->debug.fwlog_queue.lock); 459 460 ret = wait_for_completion_interruptible( 461 &ar->debug.fwlog_completion); 462 if (ret == -ERESTARTSYS) { 463 vfree(buf); 464 return ret; 465 } 466 467 spin_lock(&ar->debug.fwlog_queue.lock); 468 } 469 470 while ((skb = __skb_dequeue(&ar->debug.fwlog_queue))) { 471 if (skb->len > count - len) { 472 /* not enough space, put skb back and leave */ 473 __skb_queue_head(&ar->debug.fwlog_queue, skb); 474 break; 475 } 476 477 478 memcpy(buf + len, skb->data, skb->len); 479 len += skb->len; 480 481 kfree_skb(skb); 482 } 483 484 spin_unlock(&ar->debug.fwlog_queue.lock); 485 486 /* FIXME: what to do if len == 0? */ 487 488 not_copied = copy_to_user(user_buf, buf, len); 489 if (not_copied != 0) { 490 ret_cnt = -EFAULT; 491 goto out; 492 } 493 494 *ppos = *ppos + len; 495 496 ret_cnt = len; 497 498 out: 499 vfree(buf); 500 501 return ret_cnt; 502 } 503 504 static const struct file_operations fops_fwlog_block = { 505 .open = ath6kl_fwlog_open, 506 .release = ath6kl_fwlog_release, 507 .read = ath6kl_fwlog_block_read, 508 .owner = THIS_MODULE, 509 .llseek = default_llseek, 510 }; 511 512 static ssize_t ath6kl_fwlog_mask_read(struct file *file, char __user *user_buf, 513 size_t count, loff_t *ppos) 514 { 515 struct ath6kl *ar = file->private_data; 516 char buf[16]; 517 int len; 518 519 len = snprintf(buf, sizeof(buf), "0x%x\n", ar->debug.fwlog_mask); 520 521 return simple_read_from_buffer(user_buf, count, ppos, buf, len); 522 } 523 524 static ssize_t ath6kl_fwlog_mask_write(struct file *file, 525 const char __user *user_buf, 526 size_t count, loff_t *ppos) 527 { 528 struct ath6kl *ar = file->private_data; 529 int ret; 530 531 ret = kstrtou32_from_user(user_buf, count, 0, &ar->debug.fwlog_mask); 532 if (ret) 533 return ret; 534 535 ret = ath6kl_wmi_config_debug_module_cmd(ar->wmi, 536 ATH6KL_FWLOG_VALID_MASK, 537 ar->debug.fwlog_mask); 538 if (ret) 539 return ret; 540 541 return count; 542 } 543 544 static const struct file_operations fops_fwlog_mask = { 545 .open = simple_open, 546 .read = ath6kl_fwlog_mask_read, 547 .write = ath6kl_fwlog_mask_write, 548 .owner = THIS_MODULE, 549 .llseek = default_llseek, 550 }; 551 552 static ssize_t read_file_tgt_stats(struct file *file, char __user *user_buf, 553 size_t count, loff_t *ppos) 554 { 555 struct ath6kl *ar = file->private_data; 556 struct ath6kl_vif *vif; 557 struct target_stats *tgt_stats; 558 char *buf; 559 unsigned int len = 0, buf_len = 1500; 560 int i; 561 long left; 562 ssize_t ret_cnt; 563 564 vif = ath6kl_vif_first(ar); 565 if (!vif) 566 return -EIO; 567 568 tgt_stats = &vif->target_stats; 569 570 buf = kzalloc(buf_len, GFP_KERNEL); 571 if (!buf) 572 return -ENOMEM; 573 574 if (down_interruptible(&ar->sem)) { 575 kfree(buf); 576 return -EBUSY; 577 } 578 579 set_bit(STATS_UPDATE_PEND, &vif->flags); 580 581 if (ath6kl_wmi_get_stats_cmd(ar->wmi, 0)) { 582 up(&ar->sem); 583 kfree(buf); 584 return -EIO; 585 } 586 587 left = wait_event_interruptible_timeout(ar->event_wq, 588 !test_bit(STATS_UPDATE_PEND, 589 &vif->flags), WMI_TIMEOUT); 590 591 up(&ar->sem); 592 593 if (left <= 0) { 594 kfree(buf); 595 return -ETIMEDOUT; 596 } 597 598 len += scnprintf(buf + len, buf_len - len, "\n"); 599 len += scnprintf(buf + len, buf_len - len, "%25s\n", 600 "Target Tx stats"); 601 len += scnprintf(buf + len, buf_len - len, "%25s\n\n", 602 "================="); 603 len += scnprintf(buf + len, buf_len - len, "%20s %10llu\n", 604 "Ucast packets", tgt_stats->tx_ucast_pkt); 605 len += scnprintf(buf + len, buf_len - len, "%20s %10llu\n", 606 "Bcast packets", tgt_stats->tx_bcast_pkt); 607 len += scnprintf(buf + len, buf_len - len, "%20s %10llu\n", 608 "Ucast byte", tgt_stats->tx_ucast_byte); 609 len += scnprintf(buf + len, buf_len - len, "%20s %10llu\n", 610 "Bcast byte", tgt_stats->tx_bcast_byte); 611 len += scnprintf(buf + len, buf_len - len, "%20s %10llu\n", 612 "Rts success cnt", tgt_stats->tx_rts_success_cnt); 613 for (i = 0; i < 4; i++) 614 len += scnprintf(buf + len, buf_len - len, 615 "%18s %d %10llu\n", "PER on ac", 616 i, tgt_stats->tx_pkt_per_ac[i]); 617 len += scnprintf(buf + len, buf_len - len, "%20s %10llu\n", 618 "Error", tgt_stats->tx_err); 619 len += scnprintf(buf + len, buf_len - len, "%20s %10llu\n", 620 "Fail count", tgt_stats->tx_fail_cnt); 621 len += scnprintf(buf + len, buf_len - len, "%20s %10llu\n", 622 "Retry count", tgt_stats->tx_retry_cnt); 623 len += scnprintf(buf + len, buf_len - len, "%20s %10llu\n", 624 "Multi retry cnt", tgt_stats->tx_mult_retry_cnt); 625 len += scnprintf(buf + len, buf_len - len, "%20s %10llu\n", 626 "Rts fail cnt", tgt_stats->tx_rts_fail_cnt); 627 len += scnprintf(buf + len, buf_len - len, "%25s %10llu\n\n", 628 "TKIP counter measure used", 629 tgt_stats->tkip_cnter_measures_invoked); 630 631 len += scnprintf(buf + len, buf_len - len, "%25s\n", 632 "Target Rx stats"); 633 len += scnprintf(buf + len, buf_len - len, "%25s\n", 634 "================="); 635 636 len += scnprintf(buf + len, buf_len - len, "%20s %10llu\n", 637 "Ucast packets", tgt_stats->rx_ucast_pkt); 638 len += scnprintf(buf + len, buf_len - len, "%20s %10d\n", 639 "Ucast Rate", tgt_stats->rx_ucast_rate); 640 len += scnprintf(buf + len, buf_len - len, "%20s %10llu\n", 641 "Bcast packets", tgt_stats->rx_bcast_pkt); 642 len += scnprintf(buf + len, buf_len - len, "%20s %10llu\n", 643 "Ucast byte", tgt_stats->rx_ucast_byte); 644 len += scnprintf(buf + len, buf_len - len, "%20s %10llu\n", 645 "Bcast byte", tgt_stats->rx_bcast_byte); 646 len += scnprintf(buf + len, buf_len - len, "%20s %10llu\n", 647 "Fragmented pkt", tgt_stats->rx_frgment_pkt); 648 len += scnprintf(buf + len, buf_len - len, "%20s %10llu\n", 649 "Error", tgt_stats->rx_err); 650 len += scnprintf(buf + len, buf_len - len, "%20s %10llu\n", 651 "CRC Err", tgt_stats->rx_crc_err); 652 len += scnprintf(buf + len, buf_len - len, "%20s %10llu\n", 653 "Key chache miss", tgt_stats->rx_key_cache_miss); 654 len += scnprintf(buf + len, buf_len - len, "%20s %10llu\n", 655 "Decrypt Err", tgt_stats->rx_decrypt_err); 656 len += scnprintf(buf + len, buf_len - len, "%20s %10llu\n", 657 "Duplicate frame", tgt_stats->rx_dupl_frame); 658 len += scnprintf(buf + len, buf_len - len, "%20s %10llu\n", 659 "Tkip Mic failure", tgt_stats->tkip_local_mic_fail); 660 len += scnprintf(buf + len, buf_len - len, "%20s %10llu\n", 661 "TKIP format err", tgt_stats->tkip_fmt_err); 662 len += scnprintf(buf + len, buf_len - len, "%20s %10llu\n", 663 "CCMP format Err", tgt_stats->ccmp_fmt_err); 664 len += scnprintf(buf + len, buf_len - len, "%20s %10llu\n\n", 665 "CCMP Replay Err", tgt_stats->ccmp_replays); 666 667 len += scnprintf(buf + len, buf_len - len, "%25s\n", 668 "Misc Target stats"); 669 len += scnprintf(buf + len, buf_len - len, "%25s\n", 670 "================="); 671 len += scnprintf(buf + len, buf_len - len, "%20s %10llu\n", 672 "Beacon Miss count", tgt_stats->cs_bmiss_cnt); 673 len += scnprintf(buf + len, buf_len - len, "%20s %10llu\n", 674 "Num Connects", tgt_stats->cs_connect_cnt); 675 len += scnprintf(buf + len, buf_len - len, "%20s %10llu\n", 676 "Num disconnects", tgt_stats->cs_discon_cnt); 677 len += scnprintf(buf + len, buf_len - len, "%20s %10d\n", 678 "Beacon avg rssi", tgt_stats->cs_ave_beacon_rssi); 679 len += scnprintf(buf + len, buf_len - len, "%20s %10d\n", 680 "ARP pkt received", tgt_stats->arp_received); 681 len += scnprintf(buf + len, buf_len - len, "%20s %10d\n", 682 "ARP pkt matched", tgt_stats->arp_matched); 683 len += scnprintf(buf + len, buf_len - len, "%20s %10d\n", 684 "ARP pkt replied", tgt_stats->arp_replied); 685 686 if (len > buf_len) 687 len = buf_len; 688 689 ret_cnt = simple_read_from_buffer(user_buf, count, ppos, buf, len); 690 691 kfree(buf); 692 return ret_cnt; 693 } 694 695 static const struct file_operations fops_tgt_stats = { 696 .read = read_file_tgt_stats, 697 .open = simple_open, 698 .owner = THIS_MODULE, 699 .llseek = default_llseek, 700 }; 701 702 #define print_credit_info(fmt_str, ep_list_field) \ 703 (len += scnprintf(buf + len, buf_len - len, fmt_str, \ 704 ep_list->ep_list_field)) 705 #define CREDIT_INFO_DISPLAY_STRING_LEN 200 706 #define CREDIT_INFO_LEN 128 707 708 static ssize_t read_file_credit_dist_stats(struct file *file, 709 char __user *user_buf, 710 size_t count, loff_t *ppos) 711 { 712 struct ath6kl *ar = file->private_data; 713 struct htc_target *target = ar->htc_target; 714 struct htc_endpoint_credit_dist *ep_list; 715 char *buf; 716 unsigned int buf_len, len = 0; 717 ssize_t ret_cnt; 718 719 buf_len = CREDIT_INFO_DISPLAY_STRING_LEN + 720 get_queue_depth(&target->cred_dist_list) * CREDIT_INFO_LEN; 721 buf = kzalloc(buf_len, GFP_KERNEL); 722 if (!buf) 723 return -ENOMEM; 724 725 len += scnprintf(buf + len, buf_len - len, "%25s%5d\n", 726 "Total Avail Credits: ", 727 target->credit_info->total_avail_credits); 728 len += scnprintf(buf + len, buf_len - len, "%25s%5d\n", 729 "Free credits :", 730 target->credit_info->cur_free_credits); 731 732 len += scnprintf(buf + len, buf_len - len, 733 " Epid Flags Cred_norm Cred_min Credits Cred_assngd" 734 " Seek_cred Cred_sz Cred_per_msg Cred_to_dist" 735 " qdepth\n"); 736 737 list_for_each_entry(ep_list, &target->cred_dist_list, list) { 738 print_credit_info(" %2d", endpoint); 739 print_credit_info("%10x", dist_flags); 740 print_credit_info("%8d", cred_norm); 741 print_credit_info("%9d", cred_min); 742 print_credit_info("%9d", credits); 743 print_credit_info("%10d", cred_assngd); 744 print_credit_info("%13d", seek_cred); 745 print_credit_info("%12d", cred_sz); 746 print_credit_info("%9d", cred_per_msg); 747 print_credit_info("%14d", cred_to_dist); 748 len += scnprintf(buf + len, buf_len - len, "%12d\n", 749 get_queue_depth(&ep_list->htc_ep->txq)); 750 } 751 752 if (len > buf_len) 753 len = buf_len; 754 755 ret_cnt = simple_read_from_buffer(user_buf, count, ppos, buf, len); 756 kfree(buf); 757 return ret_cnt; 758 } 759 760 static const struct file_operations fops_credit_dist_stats = { 761 .read = read_file_credit_dist_stats, 762 .open = simple_open, 763 .owner = THIS_MODULE, 764 .llseek = default_llseek, 765 }; 766 767 static unsigned int print_endpoint_stat(struct htc_target *target, char *buf, 768 unsigned int buf_len, unsigned int len, 769 int offset, const char *name) 770 { 771 int i; 772 struct htc_endpoint_stats *ep_st; 773 u32 *counter; 774 775 len += scnprintf(buf + len, buf_len - len, "%s:", name); 776 for (i = 0; i < ENDPOINT_MAX; i++) { 777 ep_st = &target->endpoint[i].ep_st; 778 counter = ((u32 *) ep_st) + (offset / 4); 779 len += scnprintf(buf + len, buf_len - len, " %u", *counter); 780 } 781 len += scnprintf(buf + len, buf_len - len, "\n"); 782 783 return len; 784 } 785 786 static ssize_t ath6kl_endpoint_stats_read(struct file *file, 787 char __user *user_buf, 788 size_t count, loff_t *ppos) 789 { 790 struct ath6kl *ar = file->private_data; 791 struct htc_target *target = ar->htc_target; 792 char *buf; 793 unsigned int buf_len, len = 0; 794 ssize_t ret_cnt; 795 796 buf_len = sizeof(struct htc_endpoint_stats) / sizeof(u32) * 797 (25 + ENDPOINT_MAX * 11); 798 buf = kmalloc(buf_len, GFP_KERNEL); 799 if (!buf) 800 return -ENOMEM; 801 802 #define EPSTAT(name) \ 803 do { \ 804 len = print_endpoint_stat(target, buf, buf_len, len, \ 805 offsetof(struct htc_endpoint_stats, \ 806 name), \ 807 #name); \ 808 } while (0) 809 810 EPSTAT(cred_low_indicate); 811 EPSTAT(tx_issued); 812 EPSTAT(tx_pkt_bundled); 813 EPSTAT(tx_bundles); 814 EPSTAT(tx_dropped); 815 EPSTAT(tx_cred_rpt); 816 EPSTAT(cred_rpt_from_rx); 817 EPSTAT(cred_rpt_from_other); 818 EPSTAT(cred_rpt_ep0); 819 EPSTAT(cred_from_rx); 820 EPSTAT(cred_from_other); 821 EPSTAT(cred_from_ep0); 822 EPSTAT(cred_cosumd); 823 EPSTAT(cred_retnd); 824 EPSTAT(rx_pkts); 825 EPSTAT(rx_lkahds); 826 EPSTAT(rx_bundl); 827 EPSTAT(rx_bundle_lkahd); 828 EPSTAT(rx_bundle_from_hdr); 829 EPSTAT(rx_alloc_thresh_hit); 830 EPSTAT(rxalloc_thresh_byte); 831 #undef EPSTAT 832 833 if (len > buf_len) 834 len = buf_len; 835 836 ret_cnt = simple_read_from_buffer(user_buf, count, ppos, buf, len); 837 kfree(buf); 838 return ret_cnt; 839 } 840 841 static ssize_t ath6kl_endpoint_stats_write(struct file *file, 842 const char __user *user_buf, 843 size_t count, loff_t *ppos) 844 { 845 struct ath6kl *ar = file->private_data; 846 struct htc_target *target = ar->htc_target; 847 int ret, i; 848 u32 val; 849 struct htc_endpoint_stats *ep_st; 850 851 ret = kstrtou32_from_user(user_buf, count, 0, &val); 852 if (ret) 853 return ret; 854 if (val == 0) { 855 for (i = 0; i < ENDPOINT_MAX; i++) { 856 ep_st = &target->endpoint[i].ep_st; 857 memset(ep_st, 0, sizeof(*ep_st)); 858 } 859 } 860 861 return count; 862 } 863 864 static const struct file_operations fops_endpoint_stats = { 865 .open = simple_open, 866 .read = ath6kl_endpoint_stats_read, 867 .write = ath6kl_endpoint_stats_write, 868 .owner = THIS_MODULE, 869 .llseek = default_llseek, 870 }; 871 872 static unsigned long ath6kl_get_num_reg(void) 873 { 874 int i; 875 unsigned long n_reg = 0; 876 877 for (i = 0; i < ARRAY_SIZE(diag_reg); i++) 878 n_reg = n_reg + 879 (diag_reg[i].reg_end - diag_reg[i].reg_start) / 4 + 1; 880 881 return n_reg; 882 } 883 884 static bool ath6kl_dbg_is_diag_reg_valid(u32 reg_addr) 885 { 886 int i; 887 888 for (i = 0; i < ARRAY_SIZE(diag_reg); i++) { 889 if (reg_addr >= diag_reg[i].reg_start && 890 reg_addr <= diag_reg[i].reg_end) 891 return true; 892 } 893 894 return false; 895 } 896 897 static ssize_t ath6kl_regread_read(struct file *file, char __user *user_buf, 898 size_t count, loff_t *ppos) 899 { 900 struct ath6kl *ar = file->private_data; 901 u8 buf[50]; 902 unsigned int len = 0; 903 904 if (ar->debug.dbgfs_diag_reg) 905 len += scnprintf(buf + len, sizeof(buf) - len, "0x%x\n", 906 ar->debug.dbgfs_diag_reg); 907 else 908 len += scnprintf(buf + len, sizeof(buf) - len, 909 "All diag registers\n"); 910 911 return simple_read_from_buffer(user_buf, count, ppos, buf, len); 912 } 913 914 static ssize_t ath6kl_regread_write(struct file *file, 915 const char __user *user_buf, 916 size_t count, loff_t *ppos) 917 { 918 struct ath6kl *ar = file->private_data; 919 unsigned long reg_addr; 920 921 if (kstrtoul_from_user(user_buf, count, 0, ®_addr)) 922 return -EINVAL; 923 924 if ((reg_addr % 4) != 0) 925 return -EINVAL; 926 927 if (reg_addr && !ath6kl_dbg_is_diag_reg_valid(reg_addr)) 928 return -EINVAL; 929 930 ar->debug.dbgfs_diag_reg = reg_addr; 931 932 return count; 933 } 934 935 static const struct file_operations fops_diag_reg_read = { 936 .read = ath6kl_regread_read, 937 .write = ath6kl_regread_write, 938 .open = simple_open, 939 .owner = THIS_MODULE, 940 .llseek = default_llseek, 941 }; 942 943 static int ath6kl_regdump_open(struct inode *inode, struct file *file) 944 { 945 struct ath6kl *ar = inode->i_private; 946 u8 *buf; 947 unsigned long int reg_len; 948 unsigned int len = 0, n_reg; 949 u32 addr; 950 __le32 reg_val; 951 int i, status; 952 953 /* Dump all the registers if no register is specified */ 954 if (!ar->debug.dbgfs_diag_reg) 955 n_reg = ath6kl_get_num_reg(); 956 else 957 n_reg = 1; 958 959 reg_len = n_reg * REG_OUTPUT_LEN_PER_LINE; 960 if (n_reg > 1) 961 reg_len += REGTYPE_STR_LEN; 962 963 buf = vmalloc(reg_len); 964 if (!buf) 965 return -ENOMEM; 966 967 if (n_reg == 1) { 968 addr = ar->debug.dbgfs_diag_reg; 969 970 status = ath6kl_diag_read32(ar, 971 TARG_VTOP(ar->target_type, addr), 972 (u32 *)®_val); 973 if (status) 974 goto fail_reg_read; 975 976 len += scnprintf(buf + len, reg_len - len, 977 "0x%06x 0x%08x\n", addr, le32_to_cpu(reg_val)); 978 goto done; 979 } 980 981 for (i = 0; i < ARRAY_SIZE(diag_reg); i++) { 982 len += scnprintf(buf + len, reg_len - len, 983 "%s\n", diag_reg[i].reg_info); 984 for (addr = diag_reg[i].reg_start; 985 addr <= diag_reg[i].reg_end; addr += 4) { 986 status = ath6kl_diag_read32(ar, 987 TARG_VTOP(ar->target_type, addr), 988 (u32 *)®_val); 989 if (status) 990 goto fail_reg_read; 991 992 len += scnprintf(buf + len, reg_len - len, 993 "0x%06x 0x%08x\n", 994 addr, le32_to_cpu(reg_val)); 995 } 996 } 997 998 done: 999 file->private_data = buf; 1000 return 0; 1001 1002 fail_reg_read: 1003 ath6kl_warn("Unable to read memory:%u\n", addr); 1004 vfree(buf); 1005 return -EIO; 1006 } 1007 1008 static ssize_t ath6kl_regdump_read(struct file *file, char __user *user_buf, 1009 size_t count, loff_t *ppos) 1010 { 1011 u8 *buf = file->private_data; 1012 return simple_read_from_buffer(user_buf, count, ppos, buf, strlen(buf)); 1013 } 1014 1015 static int ath6kl_regdump_release(struct inode *inode, struct file *file) 1016 { 1017 vfree(file->private_data); 1018 return 0; 1019 } 1020 1021 static const struct file_operations fops_reg_dump = { 1022 .open = ath6kl_regdump_open, 1023 .read = ath6kl_regdump_read, 1024 .release = ath6kl_regdump_release, 1025 .owner = THIS_MODULE, 1026 .llseek = default_llseek, 1027 }; 1028 1029 static ssize_t ath6kl_lrssi_roam_write(struct file *file, 1030 const char __user *user_buf, 1031 size_t count, loff_t *ppos) 1032 { 1033 struct ath6kl *ar = file->private_data; 1034 unsigned long lrssi_roam_threshold; 1035 1036 if (kstrtoul_from_user(user_buf, count, 0, &lrssi_roam_threshold)) 1037 return -EINVAL; 1038 1039 ar->lrssi_roam_threshold = lrssi_roam_threshold; 1040 1041 ath6kl_wmi_set_roam_lrssi_cmd(ar->wmi, ar->lrssi_roam_threshold); 1042 1043 return count; 1044 } 1045 1046 static ssize_t ath6kl_lrssi_roam_read(struct file *file, 1047 char __user *user_buf, 1048 size_t count, loff_t *ppos) 1049 { 1050 struct ath6kl *ar = file->private_data; 1051 char buf[32]; 1052 unsigned int len; 1053 1054 len = snprintf(buf, sizeof(buf), "%u\n", ar->lrssi_roam_threshold); 1055 1056 return simple_read_from_buffer(user_buf, count, ppos, buf, len); 1057 } 1058 1059 static const struct file_operations fops_lrssi_roam_threshold = { 1060 .read = ath6kl_lrssi_roam_read, 1061 .write = ath6kl_lrssi_roam_write, 1062 .open = simple_open, 1063 .owner = THIS_MODULE, 1064 .llseek = default_llseek, 1065 }; 1066 1067 static ssize_t ath6kl_regwrite_read(struct file *file, 1068 char __user *user_buf, 1069 size_t count, loff_t *ppos) 1070 { 1071 struct ath6kl *ar = file->private_data; 1072 u8 buf[32]; 1073 unsigned int len = 0; 1074 1075 len = scnprintf(buf, sizeof(buf), "Addr: 0x%x Val: 0x%x\n", 1076 ar->debug.diag_reg_addr_wr, ar->debug.diag_reg_val_wr); 1077 1078 return simple_read_from_buffer(user_buf, count, ppos, buf, len); 1079 } 1080 1081 static ssize_t ath6kl_regwrite_write(struct file *file, 1082 const char __user *user_buf, 1083 size_t count, loff_t *ppos) 1084 { 1085 struct ath6kl *ar = file->private_data; 1086 char buf[32]; 1087 char *sptr, *token; 1088 unsigned int len = 0; 1089 u32 reg_addr, reg_val; 1090 1091 len = min(count, sizeof(buf) - 1); 1092 if (copy_from_user(buf, user_buf, len)) 1093 return -EFAULT; 1094 1095 buf[len] = '\0'; 1096 sptr = buf; 1097 1098 token = strsep(&sptr, "="); 1099 if (!token) 1100 return -EINVAL; 1101 1102 if (kstrtou32(token, 0, ®_addr)) 1103 return -EINVAL; 1104 1105 if (!ath6kl_dbg_is_diag_reg_valid(reg_addr)) 1106 return -EINVAL; 1107 1108 if (kstrtou32(sptr, 0, ®_val)) 1109 return -EINVAL; 1110 1111 ar->debug.diag_reg_addr_wr = reg_addr; 1112 ar->debug.diag_reg_val_wr = reg_val; 1113 1114 if (ath6kl_diag_write32(ar, ar->debug.diag_reg_addr_wr, 1115 cpu_to_le32(ar->debug.diag_reg_val_wr))) 1116 return -EIO; 1117 1118 return count; 1119 } 1120 1121 static const struct file_operations fops_diag_reg_write = { 1122 .read = ath6kl_regwrite_read, 1123 .write = ath6kl_regwrite_write, 1124 .open = simple_open, 1125 .owner = THIS_MODULE, 1126 .llseek = default_llseek, 1127 }; 1128 1129 int ath6kl_debug_roam_tbl_event(struct ath6kl *ar, const void *buf, 1130 size_t len) 1131 { 1132 const struct wmi_target_roam_tbl *tbl; 1133 u16 num_entries; 1134 1135 if (len < sizeof(*tbl)) 1136 return -EINVAL; 1137 1138 tbl = (const struct wmi_target_roam_tbl *) buf; 1139 num_entries = le16_to_cpu(tbl->num_entries); 1140 if (sizeof(*tbl) + num_entries * sizeof(struct wmi_bss_roam_info) > 1141 len) 1142 return -EINVAL; 1143 1144 if (ar->debug.roam_tbl == NULL || 1145 ar->debug.roam_tbl_len < (unsigned int) len) { 1146 kfree(ar->debug.roam_tbl); 1147 ar->debug.roam_tbl = kmalloc(len, GFP_ATOMIC); 1148 if (ar->debug.roam_tbl == NULL) 1149 return -ENOMEM; 1150 } 1151 1152 memcpy(ar->debug.roam_tbl, buf, len); 1153 ar->debug.roam_tbl_len = len; 1154 1155 if (test_bit(ROAM_TBL_PEND, &ar->flag)) { 1156 clear_bit(ROAM_TBL_PEND, &ar->flag); 1157 wake_up(&ar->event_wq); 1158 } 1159 1160 return 0; 1161 } 1162 1163 static ssize_t ath6kl_roam_table_read(struct file *file, char __user *user_buf, 1164 size_t count, loff_t *ppos) 1165 { 1166 struct ath6kl *ar = file->private_data; 1167 int ret; 1168 long left; 1169 struct wmi_target_roam_tbl *tbl; 1170 u16 num_entries, i; 1171 char *buf; 1172 unsigned int len, buf_len; 1173 ssize_t ret_cnt; 1174 1175 if (down_interruptible(&ar->sem)) 1176 return -EBUSY; 1177 1178 set_bit(ROAM_TBL_PEND, &ar->flag); 1179 1180 ret = ath6kl_wmi_get_roam_tbl_cmd(ar->wmi); 1181 if (ret) { 1182 up(&ar->sem); 1183 return ret; 1184 } 1185 1186 left = wait_event_interruptible_timeout( 1187 ar->event_wq, !test_bit(ROAM_TBL_PEND, &ar->flag), WMI_TIMEOUT); 1188 up(&ar->sem); 1189 1190 if (left <= 0) 1191 return -ETIMEDOUT; 1192 1193 if (ar->debug.roam_tbl == NULL) 1194 return -ENOMEM; 1195 1196 tbl = (struct wmi_target_roam_tbl *) ar->debug.roam_tbl; 1197 num_entries = le16_to_cpu(tbl->num_entries); 1198 1199 buf_len = 100 + num_entries * 100; 1200 buf = kzalloc(buf_len, GFP_KERNEL); 1201 if (buf == NULL) 1202 return -ENOMEM; 1203 len = 0; 1204 len += scnprintf(buf + len, buf_len - len, 1205 "roam_mode=%u\n\n" 1206 "# roam_util bssid rssi rssidt last_rssi util bias\n", 1207 le16_to_cpu(tbl->roam_mode)); 1208 1209 for (i = 0; i < num_entries; i++) { 1210 struct wmi_bss_roam_info *info = &tbl->info[i]; 1211 len += scnprintf(buf + len, buf_len - len, 1212 "%d %pM %d %d %d %d %d\n", 1213 a_sle32_to_cpu(info->roam_util), info->bssid, 1214 info->rssi, info->rssidt, info->last_rssi, 1215 info->util, info->bias); 1216 } 1217 1218 if (len > buf_len) 1219 len = buf_len; 1220 1221 ret_cnt = simple_read_from_buffer(user_buf, count, ppos, buf, len); 1222 1223 kfree(buf); 1224 return ret_cnt; 1225 } 1226 1227 static const struct file_operations fops_roam_table = { 1228 .read = ath6kl_roam_table_read, 1229 .open = simple_open, 1230 .owner = THIS_MODULE, 1231 .llseek = default_llseek, 1232 }; 1233 1234 static ssize_t ath6kl_force_roam_write(struct file *file, 1235 const char __user *user_buf, 1236 size_t count, loff_t *ppos) 1237 { 1238 struct ath6kl *ar = file->private_data; 1239 int ret; 1240 char buf[20]; 1241 size_t len; 1242 u8 bssid[ETH_ALEN]; 1243 int i; 1244 int addr[ETH_ALEN]; 1245 1246 len = min(count, sizeof(buf) - 1); 1247 if (copy_from_user(buf, user_buf, len)) 1248 return -EFAULT; 1249 buf[len] = '\0'; 1250 1251 if (sscanf(buf, "%02x:%02x:%02x:%02x:%02x:%02x", 1252 &addr[0], &addr[1], &addr[2], &addr[3], &addr[4], &addr[5]) 1253 != ETH_ALEN) 1254 return -EINVAL; 1255 for (i = 0; i < ETH_ALEN; i++) 1256 bssid[i] = addr[i]; 1257 1258 ret = ath6kl_wmi_force_roam_cmd(ar->wmi, bssid); 1259 if (ret) 1260 return ret; 1261 1262 return count; 1263 } 1264 1265 static const struct file_operations fops_force_roam = { 1266 .write = ath6kl_force_roam_write, 1267 .open = simple_open, 1268 .owner = THIS_MODULE, 1269 .llseek = default_llseek, 1270 }; 1271 1272 static ssize_t ath6kl_roam_mode_write(struct file *file, 1273 const char __user *user_buf, 1274 size_t count, loff_t *ppos) 1275 { 1276 struct ath6kl *ar = file->private_data; 1277 int ret; 1278 char buf[20]; 1279 size_t len; 1280 enum wmi_roam_mode mode; 1281 1282 len = min(count, sizeof(buf) - 1); 1283 if (copy_from_user(buf, user_buf, len)) 1284 return -EFAULT; 1285 buf[len] = '\0'; 1286 if (len > 0 && buf[len - 1] == '\n') 1287 buf[len - 1] = '\0'; 1288 1289 if (strcasecmp(buf, "default") == 0) 1290 mode = WMI_DEFAULT_ROAM_MODE; 1291 else if (strcasecmp(buf, "bssbias") == 0) 1292 mode = WMI_HOST_BIAS_ROAM_MODE; 1293 else if (strcasecmp(buf, "lock") == 0) 1294 mode = WMI_LOCK_BSS_MODE; 1295 else 1296 return -EINVAL; 1297 1298 ret = ath6kl_wmi_set_roam_mode_cmd(ar->wmi, mode); 1299 if (ret) 1300 return ret; 1301 1302 return count; 1303 } 1304 1305 static const struct file_operations fops_roam_mode = { 1306 .write = ath6kl_roam_mode_write, 1307 .open = simple_open, 1308 .owner = THIS_MODULE, 1309 .llseek = default_llseek, 1310 }; 1311 1312 void ath6kl_debug_set_keepalive(struct ath6kl *ar, u8 keepalive) 1313 { 1314 ar->debug.keepalive = keepalive; 1315 } 1316 1317 static ssize_t ath6kl_keepalive_read(struct file *file, char __user *user_buf, 1318 size_t count, loff_t *ppos) 1319 { 1320 struct ath6kl *ar = file->private_data; 1321 char buf[16]; 1322 int len; 1323 1324 len = snprintf(buf, sizeof(buf), "%u\n", ar->debug.keepalive); 1325 1326 return simple_read_from_buffer(user_buf, count, ppos, buf, len); 1327 } 1328 1329 static ssize_t ath6kl_keepalive_write(struct file *file, 1330 const char __user *user_buf, 1331 size_t count, loff_t *ppos) 1332 { 1333 struct ath6kl *ar = file->private_data; 1334 int ret; 1335 u8 val; 1336 1337 ret = kstrtou8_from_user(user_buf, count, 0, &val); 1338 if (ret) 1339 return ret; 1340 1341 ret = ath6kl_wmi_set_keepalive_cmd(ar->wmi, 0, val); 1342 if (ret) 1343 return ret; 1344 1345 return count; 1346 } 1347 1348 static const struct file_operations fops_keepalive = { 1349 .open = simple_open, 1350 .read = ath6kl_keepalive_read, 1351 .write = ath6kl_keepalive_write, 1352 .owner = THIS_MODULE, 1353 .llseek = default_llseek, 1354 }; 1355 1356 void ath6kl_debug_set_disconnect_timeout(struct ath6kl *ar, u8 timeout) 1357 { 1358 ar->debug.disc_timeout = timeout; 1359 } 1360 1361 static ssize_t ath6kl_disconnect_timeout_read(struct file *file, 1362 char __user *user_buf, 1363 size_t count, loff_t *ppos) 1364 { 1365 struct ath6kl *ar = file->private_data; 1366 char buf[16]; 1367 int len; 1368 1369 len = snprintf(buf, sizeof(buf), "%u\n", ar->debug.disc_timeout); 1370 1371 return simple_read_from_buffer(user_buf, count, ppos, buf, len); 1372 } 1373 1374 static ssize_t ath6kl_disconnect_timeout_write(struct file *file, 1375 const char __user *user_buf, 1376 size_t count, loff_t *ppos) 1377 { 1378 struct ath6kl *ar = file->private_data; 1379 int ret; 1380 u8 val; 1381 1382 ret = kstrtou8_from_user(user_buf, count, 0, &val); 1383 if (ret) 1384 return ret; 1385 1386 ret = ath6kl_wmi_disctimeout_cmd(ar->wmi, 0, val); 1387 if (ret) 1388 return ret; 1389 1390 return count; 1391 } 1392 1393 static const struct file_operations fops_disconnect_timeout = { 1394 .open = simple_open, 1395 .read = ath6kl_disconnect_timeout_read, 1396 .write = ath6kl_disconnect_timeout_write, 1397 .owner = THIS_MODULE, 1398 .llseek = default_llseek, 1399 }; 1400 1401 static ssize_t ath6kl_create_qos_write(struct file *file, 1402 const char __user *user_buf, 1403 size_t count, loff_t *ppos) 1404 { 1405 1406 struct ath6kl *ar = file->private_data; 1407 struct ath6kl_vif *vif; 1408 char buf[200]; 1409 ssize_t len; 1410 char *sptr, *token; 1411 struct wmi_create_pstream_cmd pstream; 1412 u32 val32; 1413 u16 val16; 1414 1415 vif = ath6kl_vif_first(ar); 1416 if (!vif) 1417 return -EIO; 1418 1419 len = min(count, sizeof(buf) - 1); 1420 if (copy_from_user(buf, user_buf, len)) 1421 return -EFAULT; 1422 buf[len] = '\0'; 1423 sptr = buf; 1424 1425 token = strsep(&sptr, " "); 1426 if (!token) 1427 return -EINVAL; 1428 if (kstrtou8(token, 0, &pstream.user_pri)) 1429 return -EINVAL; 1430 1431 token = strsep(&sptr, " "); 1432 if (!token) 1433 return -EINVAL; 1434 if (kstrtou8(token, 0, &pstream.traffic_direc)) 1435 return -EINVAL; 1436 1437 token = strsep(&sptr, " "); 1438 if (!token) 1439 return -EINVAL; 1440 if (kstrtou8(token, 0, &pstream.traffic_class)) 1441 return -EINVAL; 1442 1443 token = strsep(&sptr, " "); 1444 if (!token) 1445 return -EINVAL; 1446 if (kstrtou8(token, 0, &pstream.traffic_type)) 1447 return -EINVAL; 1448 1449 token = strsep(&sptr, " "); 1450 if (!token) 1451 return -EINVAL; 1452 if (kstrtou8(token, 0, &pstream.voice_psc_cap)) 1453 return -EINVAL; 1454 1455 token = strsep(&sptr, " "); 1456 if (!token) 1457 return -EINVAL; 1458 if (kstrtou32(token, 0, &val32)) 1459 return -EINVAL; 1460 pstream.min_service_int = cpu_to_le32(val32); 1461 1462 token = strsep(&sptr, " "); 1463 if (!token) 1464 return -EINVAL; 1465 if (kstrtou32(token, 0, &val32)) 1466 return -EINVAL; 1467 pstream.max_service_int = cpu_to_le32(val32); 1468 1469 token = strsep(&sptr, " "); 1470 if (!token) 1471 return -EINVAL; 1472 if (kstrtou32(token, 0, &val32)) 1473 return -EINVAL; 1474 pstream.inactivity_int = cpu_to_le32(val32); 1475 1476 token = strsep(&sptr, " "); 1477 if (!token) 1478 return -EINVAL; 1479 if (kstrtou32(token, 0, &val32)) 1480 return -EINVAL; 1481 pstream.suspension_int = cpu_to_le32(val32); 1482 1483 token = strsep(&sptr, " "); 1484 if (!token) 1485 return -EINVAL; 1486 if (kstrtou32(token, 0, &val32)) 1487 return -EINVAL; 1488 pstream.service_start_time = cpu_to_le32(val32); 1489 1490 token = strsep(&sptr, " "); 1491 if (!token) 1492 return -EINVAL; 1493 if (kstrtou8(token, 0, &pstream.tsid)) 1494 return -EINVAL; 1495 1496 token = strsep(&sptr, " "); 1497 if (!token) 1498 return -EINVAL; 1499 if (kstrtou16(token, 0, &val16)) 1500 return -EINVAL; 1501 pstream.nominal_msdu = cpu_to_le16(val16); 1502 1503 token = strsep(&sptr, " "); 1504 if (!token) 1505 return -EINVAL; 1506 if (kstrtou16(token, 0, &val16)) 1507 return -EINVAL; 1508 pstream.max_msdu = cpu_to_le16(val16); 1509 1510 token = strsep(&sptr, " "); 1511 if (!token) 1512 return -EINVAL; 1513 if (kstrtou32(token, 0, &val32)) 1514 return -EINVAL; 1515 pstream.min_data_rate = cpu_to_le32(val32); 1516 1517 token = strsep(&sptr, " "); 1518 if (!token) 1519 return -EINVAL; 1520 if (kstrtou32(token, 0, &val32)) 1521 return -EINVAL; 1522 pstream.mean_data_rate = cpu_to_le32(val32); 1523 1524 token = strsep(&sptr, " "); 1525 if (!token) 1526 return -EINVAL; 1527 if (kstrtou32(token, 0, &val32)) 1528 return -EINVAL; 1529 pstream.peak_data_rate = cpu_to_le32(val32); 1530 1531 token = strsep(&sptr, " "); 1532 if (!token) 1533 return -EINVAL; 1534 if (kstrtou32(token, 0, &val32)) 1535 return -EINVAL; 1536 pstream.max_burst_size = cpu_to_le32(val32); 1537 1538 token = strsep(&sptr, " "); 1539 if (!token) 1540 return -EINVAL; 1541 if (kstrtou32(token, 0, &val32)) 1542 return -EINVAL; 1543 pstream.delay_bound = cpu_to_le32(val32); 1544 1545 token = strsep(&sptr, " "); 1546 if (!token) 1547 return -EINVAL; 1548 if (kstrtou32(token, 0, &val32)) 1549 return -EINVAL; 1550 pstream.min_phy_rate = cpu_to_le32(val32); 1551 1552 token = strsep(&sptr, " "); 1553 if (!token) 1554 return -EINVAL; 1555 if (kstrtou32(token, 0, &val32)) 1556 return -EINVAL; 1557 pstream.sba = cpu_to_le32(val32); 1558 1559 token = strsep(&sptr, " "); 1560 if (!token) 1561 return -EINVAL; 1562 if (kstrtou32(token, 0, &val32)) 1563 return -EINVAL; 1564 pstream.medium_time = cpu_to_le32(val32); 1565 1566 pstream.nominal_phy = le32_to_cpu(pstream.min_phy_rate) / 1000000; 1567 1568 ath6kl_wmi_create_pstream_cmd(ar->wmi, vif->fw_vif_idx, &pstream); 1569 1570 return count; 1571 } 1572 1573 static const struct file_operations fops_create_qos = { 1574 .write = ath6kl_create_qos_write, 1575 .open = simple_open, 1576 .owner = THIS_MODULE, 1577 .llseek = default_llseek, 1578 }; 1579 1580 static ssize_t ath6kl_delete_qos_write(struct file *file, 1581 const char __user *user_buf, 1582 size_t count, loff_t *ppos) 1583 { 1584 1585 struct ath6kl *ar = file->private_data; 1586 struct ath6kl_vif *vif; 1587 char buf[100]; 1588 ssize_t len; 1589 char *sptr, *token; 1590 u8 traffic_class; 1591 u8 tsid; 1592 1593 vif = ath6kl_vif_first(ar); 1594 if (!vif) 1595 return -EIO; 1596 1597 len = min(count, sizeof(buf) - 1); 1598 if (copy_from_user(buf, user_buf, len)) 1599 return -EFAULT; 1600 buf[len] = '\0'; 1601 sptr = buf; 1602 1603 token = strsep(&sptr, " "); 1604 if (!token) 1605 return -EINVAL; 1606 if (kstrtou8(token, 0, &traffic_class)) 1607 return -EINVAL; 1608 1609 token = strsep(&sptr, " "); 1610 if (!token) 1611 return -EINVAL; 1612 if (kstrtou8(token, 0, &tsid)) 1613 return -EINVAL; 1614 1615 ath6kl_wmi_delete_pstream_cmd(ar->wmi, vif->fw_vif_idx, 1616 traffic_class, tsid); 1617 1618 return count; 1619 } 1620 1621 static const struct file_operations fops_delete_qos = { 1622 .write = ath6kl_delete_qos_write, 1623 .open = simple_open, 1624 .owner = THIS_MODULE, 1625 .llseek = default_llseek, 1626 }; 1627 1628 static ssize_t ath6kl_bgscan_int_write(struct file *file, 1629 const char __user *user_buf, 1630 size_t count, loff_t *ppos) 1631 { 1632 struct ath6kl *ar = file->private_data; 1633 struct ath6kl_vif *vif; 1634 u16 bgscan_int; 1635 char buf[32]; 1636 ssize_t len; 1637 1638 vif = ath6kl_vif_first(ar); 1639 if (!vif) 1640 return -EIO; 1641 1642 len = min(count, sizeof(buf) - 1); 1643 if (copy_from_user(buf, user_buf, len)) 1644 return -EFAULT; 1645 1646 buf[len] = '\0'; 1647 if (kstrtou16(buf, 0, &bgscan_int)) 1648 return -EINVAL; 1649 1650 if (bgscan_int == 0) 1651 bgscan_int = 0xffff; 1652 1653 vif->bg_scan_period = bgscan_int; 1654 1655 ath6kl_wmi_scanparams_cmd(ar->wmi, 0, 0, 0, bgscan_int, 0, 0, 0, 3, 1656 0, 0, 0); 1657 1658 return count; 1659 } 1660 1661 static const struct file_operations fops_bgscan_int = { 1662 .write = ath6kl_bgscan_int_write, 1663 .open = simple_open, 1664 .owner = THIS_MODULE, 1665 .llseek = default_llseek, 1666 }; 1667 1668 static ssize_t ath6kl_listen_int_write(struct file *file, 1669 const char __user *user_buf, 1670 size_t count, loff_t *ppos) 1671 { 1672 struct ath6kl *ar = file->private_data; 1673 struct ath6kl_vif *vif; 1674 u16 listen_interval; 1675 char buf[32]; 1676 ssize_t len; 1677 1678 vif = ath6kl_vif_first(ar); 1679 if (!vif) 1680 return -EIO; 1681 1682 len = min(count, sizeof(buf) - 1); 1683 if (copy_from_user(buf, user_buf, len)) 1684 return -EFAULT; 1685 1686 buf[len] = '\0'; 1687 if (kstrtou16(buf, 0, &listen_interval)) 1688 return -EINVAL; 1689 1690 if ((listen_interval < 15) || (listen_interval > 3000)) 1691 return -EINVAL; 1692 1693 vif->listen_intvl_t = listen_interval; 1694 ath6kl_wmi_listeninterval_cmd(ar->wmi, vif->fw_vif_idx, 1695 vif->listen_intvl_t, 0); 1696 1697 return count; 1698 } 1699 1700 static ssize_t ath6kl_listen_int_read(struct file *file, 1701 char __user *user_buf, 1702 size_t count, loff_t *ppos) 1703 { 1704 struct ath6kl *ar = file->private_data; 1705 struct ath6kl_vif *vif; 1706 char buf[32]; 1707 int len; 1708 1709 vif = ath6kl_vif_first(ar); 1710 if (!vif) 1711 return -EIO; 1712 1713 len = scnprintf(buf, sizeof(buf), "%u\n", vif->listen_intvl_t); 1714 1715 return simple_read_from_buffer(user_buf, count, ppos, buf, len); 1716 } 1717 1718 static const struct file_operations fops_listen_int = { 1719 .read = ath6kl_listen_int_read, 1720 .write = ath6kl_listen_int_write, 1721 .open = simple_open, 1722 .owner = THIS_MODULE, 1723 .llseek = default_llseek, 1724 }; 1725 1726 static ssize_t ath6kl_power_params_write(struct file *file, 1727 const char __user *user_buf, 1728 size_t count, loff_t *ppos) 1729 { 1730 struct ath6kl *ar = file->private_data; 1731 u8 buf[100]; 1732 unsigned int len = 0; 1733 char *sptr, *token; 1734 u16 idle_period, ps_poll_num, dtim, 1735 tx_wakeup, num_tx; 1736 1737 len = min(count, sizeof(buf) - 1); 1738 if (copy_from_user(buf, user_buf, len)) 1739 return -EFAULT; 1740 buf[len] = '\0'; 1741 sptr = buf; 1742 1743 token = strsep(&sptr, " "); 1744 if (!token) 1745 return -EINVAL; 1746 if (kstrtou16(token, 0, &idle_period)) 1747 return -EINVAL; 1748 1749 token = strsep(&sptr, " "); 1750 if (!token) 1751 return -EINVAL; 1752 if (kstrtou16(token, 0, &ps_poll_num)) 1753 return -EINVAL; 1754 1755 token = strsep(&sptr, " "); 1756 if (!token) 1757 return -EINVAL; 1758 if (kstrtou16(token, 0, &dtim)) 1759 return -EINVAL; 1760 1761 token = strsep(&sptr, " "); 1762 if (!token) 1763 return -EINVAL; 1764 if (kstrtou16(token, 0, &tx_wakeup)) 1765 return -EINVAL; 1766 1767 token = strsep(&sptr, " "); 1768 if (!token) 1769 return -EINVAL; 1770 if (kstrtou16(token, 0, &num_tx)) 1771 return -EINVAL; 1772 1773 ath6kl_wmi_pmparams_cmd(ar->wmi, 0, idle_period, ps_poll_num, 1774 dtim, tx_wakeup, num_tx, 0); 1775 1776 return count; 1777 } 1778 1779 static const struct file_operations fops_power_params = { 1780 .write = ath6kl_power_params_write, 1781 .open = simple_open, 1782 .owner = THIS_MODULE, 1783 .llseek = default_llseek, 1784 }; 1785 1786 void ath6kl_debug_init(struct ath6kl *ar) 1787 { 1788 skb_queue_head_init(&ar->debug.fwlog_queue); 1789 init_completion(&ar->debug.fwlog_completion); 1790 1791 /* 1792 * Actually we are lying here but don't know how to read the mask 1793 * value from the firmware. 1794 */ 1795 ar->debug.fwlog_mask = 0; 1796 } 1797 1798 /* 1799 * Initialisation needs to happen in two stages as fwlog events can come 1800 * before cfg80211 is initialised, and debugfs depends on cfg80211 1801 * initialisation. 1802 */ 1803 int ath6kl_debug_init_fs(struct ath6kl *ar) 1804 { 1805 ar->debugfs_phy = debugfs_create_dir("ath6kl", 1806 ar->wiphy->debugfsdir); 1807 if (!ar->debugfs_phy) 1808 return -ENOMEM; 1809 1810 debugfs_create_file("tgt_stats", S_IRUSR, ar->debugfs_phy, ar, 1811 &fops_tgt_stats); 1812 1813 debugfs_create_file("credit_dist_stats", S_IRUSR, ar->debugfs_phy, ar, 1814 &fops_credit_dist_stats); 1815 1816 debugfs_create_file("endpoint_stats", S_IRUSR | S_IWUSR, 1817 ar->debugfs_phy, ar, &fops_endpoint_stats); 1818 1819 debugfs_create_file("fwlog", S_IRUSR, ar->debugfs_phy, ar, 1820 &fops_fwlog); 1821 1822 debugfs_create_file("fwlog_block", S_IRUSR, ar->debugfs_phy, ar, 1823 &fops_fwlog_block); 1824 1825 debugfs_create_file("fwlog_mask", S_IRUSR | S_IWUSR, ar->debugfs_phy, 1826 ar, &fops_fwlog_mask); 1827 1828 debugfs_create_file("reg_addr", S_IRUSR | S_IWUSR, ar->debugfs_phy, ar, 1829 &fops_diag_reg_read); 1830 1831 debugfs_create_file("reg_dump", S_IRUSR, ar->debugfs_phy, ar, 1832 &fops_reg_dump); 1833 1834 debugfs_create_file("lrssi_roam_threshold", S_IRUSR | S_IWUSR, 1835 ar->debugfs_phy, ar, &fops_lrssi_roam_threshold); 1836 1837 debugfs_create_file("reg_write", S_IRUSR | S_IWUSR, 1838 ar->debugfs_phy, ar, &fops_diag_reg_write); 1839 1840 debugfs_create_file("war_stats", S_IRUSR, ar->debugfs_phy, ar, 1841 &fops_war_stats); 1842 1843 debugfs_create_file("roam_table", S_IRUSR, ar->debugfs_phy, ar, 1844 &fops_roam_table); 1845 1846 debugfs_create_file("force_roam", S_IWUSR, ar->debugfs_phy, ar, 1847 &fops_force_roam); 1848 1849 debugfs_create_file("roam_mode", S_IWUSR, ar->debugfs_phy, ar, 1850 &fops_roam_mode); 1851 1852 debugfs_create_file("keepalive", S_IRUSR | S_IWUSR, ar->debugfs_phy, ar, 1853 &fops_keepalive); 1854 1855 debugfs_create_file("disconnect_timeout", S_IRUSR | S_IWUSR, 1856 ar->debugfs_phy, ar, &fops_disconnect_timeout); 1857 1858 debugfs_create_file("create_qos", S_IWUSR, ar->debugfs_phy, ar, 1859 &fops_create_qos); 1860 1861 debugfs_create_file("delete_qos", S_IWUSR, ar->debugfs_phy, ar, 1862 &fops_delete_qos); 1863 1864 debugfs_create_file("bgscan_interval", S_IWUSR, 1865 ar->debugfs_phy, ar, &fops_bgscan_int); 1866 1867 debugfs_create_file("listen_interval", S_IRUSR | S_IWUSR, 1868 ar->debugfs_phy, ar, &fops_listen_int); 1869 1870 debugfs_create_file("power_params", S_IWUSR, ar->debugfs_phy, ar, 1871 &fops_power_params); 1872 1873 return 0; 1874 } 1875 1876 void ath6kl_debug_cleanup(struct ath6kl *ar) 1877 { 1878 skb_queue_purge(&ar->debug.fwlog_queue); 1879 complete(&ar->debug.fwlog_completion); 1880 kfree(ar->debug.roam_tbl); 1881 } 1882 1883 #endif 1884