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