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[]; 34 }; 35 36 #define ATH6KL_FWLOG_MAX_ENTRIES 20 37 38 #define ATH6KL_FWLOG_VALID_MASK 0x1ffff 39 40 void ath6kl_printk(const char *level, const char *fmt, ...) 41 { 42 struct va_format vaf; 43 va_list args; 44 45 va_start(args, fmt); 46 47 vaf.fmt = fmt; 48 vaf.va = &args; 49 50 printk("%sath6kl: %pV", level, &vaf); 51 52 va_end(args); 53 } 54 EXPORT_SYMBOL(ath6kl_printk); 55 56 void ath6kl_info(const char *fmt, ...) 57 { 58 struct va_format vaf = { 59 .fmt = fmt, 60 }; 61 va_list args; 62 63 va_start(args, fmt); 64 vaf.va = &args; 65 ath6kl_printk(KERN_INFO, "%pV", &vaf); 66 trace_ath6kl_log_info(&vaf); 67 va_end(args); 68 } 69 EXPORT_SYMBOL(ath6kl_info); 70 71 void ath6kl_err(const char *fmt, ...) 72 { 73 struct va_format vaf = { 74 .fmt = fmt, 75 }; 76 va_list args; 77 78 va_start(args, fmt); 79 vaf.va = &args; 80 ath6kl_printk(KERN_ERR, "%pV", &vaf); 81 trace_ath6kl_log_err(&vaf); 82 va_end(args); 83 } 84 EXPORT_SYMBOL(ath6kl_err); 85 86 void ath6kl_warn(const char *fmt, ...) 87 { 88 struct va_format vaf = { 89 .fmt = fmt, 90 }; 91 va_list args; 92 93 va_start(args, fmt); 94 vaf.va = &args; 95 ath6kl_printk(KERN_WARNING, "%pV", &vaf); 96 trace_ath6kl_log_warn(&vaf); 97 va_end(args); 98 } 99 EXPORT_SYMBOL(ath6kl_warn); 100 101 int ath6kl_read_tgt_stats(struct ath6kl *ar, struct ath6kl_vif *vif) 102 { 103 long left; 104 105 if (down_interruptible(&ar->sem)) 106 return -EBUSY; 107 108 set_bit(STATS_UPDATE_PEND, &vif->flags); 109 110 if (ath6kl_wmi_get_stats_cmd(ar->wmi, 0)) { 111 up(&ar->sem); 112 return -EIO; 113 } 114 115 left = wait_event_interruptible_timeout(ar->event_wq, 116 !test_bit(STATS_UPDATE_PEND, 117 &vif->flags), WMI_TIMEOUT); 118 119 up(&ar->sem); 120 121 if (left <= 0) 122 return -ETIMEDOUT; 123 124 return 0; 125 } 126 EXPORT_SYMBOL(ath6kl_read_tgt_stats); 127 128 #ifdef CONFIG_ATH6KL_DEBUG 129 130 void ath6kl_dbg(enum ATH6K_DEBUG_MASK mask, const char *fmt, ...) 131 { 132 struct va_format vaf; 133 va_list args; 134 135 va_start(args, fmt); 136 137 vaf.fmt = fmt; 138 vaf.va = &args; 139 140 if (debug_mask & mask) 141 ath6kl_printk(KERN_DEBUG, "%pV", &vaf); 142 143 trace_ath6kl_log_dbg(mask, &vaf); 144 145 va_end(args); 146 } 147 EXPORT_SYMBOL(ath6kl_dbg); 148 149 void ath6kl_dbg_dump(enum ATH6K_DEBUG_MASK mask, 150 const char *msg, const char *prefix, 151 const void *buf, size_t len) 152 { 153 if (debug_mask & mask) { 154 if (msg) 155 ath6kl_dbg(mask, "%s\n", msg); 156 157 print_hex_dump_bytes(prefix, DUMP_PREFIX_OFFSET, buf, len); 158 } 159 160 /* tracing code doesn't like null strings :/ */ 161 trace_ath6kl_log_dbg_dump(msg ? msg : "", prefix ? prefix : "", 162 buf, len); 163 } 164 EXPORT_SYMBOL(ath6kl_dbg_dump); 165 166 #define REG_OUTPUT_LEN_PER_LINE 25 167 #define REGTYPE_STR_LEN 100 168 169 struct ath6kl_diag_reg_info { 170 u32 reg_start; 171 u32 reg_end; 172 const char *reg_info; 173 }; 174 175 static const struct ath6kl_diag_reg_info diag_reg[] = { 176 { 0x20000, 0x200fc, "General DMA and Rx registers" }, 177 { 0x28000, 0x28900, "MAC PCU register & keycache" }, 178 { 0x20800, 0x20a40, "QCU" }, 179 { 0x21000, 0x212f0, "DCU" }, 180 { 0x4000, 0x42e4, "RTC" }, 181 { 0x540000, 0x540000 + (256 * 1024), "RAM" }, 182 { 0x29800, 0x2B210, "Base Band" }, 183 { 0x1C000, 0x1C748, "Analog" }, 184 }; 185 186 void ath6kl_dump_registers(struct ath6kl_device *dev, 187 struct ath6kl_irq_proc_registers *irq_proc_reg, 188 struct ath6kl_irq_enable_reg *irq_enable_reg) 189 { 190 ath6kl_dbg(ATH6KL_DBG_IRQ, ("<------- Register Table -------->\n")); 191 192 if (irq_proc_reg != NULL) { 193 ath6kl_dbg(ATH6KL_DBG_IRQ, 194 "Host Int status: 0x%x\n", 195 irq_proc_reg->host_int_status); 196 ath6kl_dbg(ATH6KL_DBG_IRQ, 197 "CPU Int status: 0x%x\n", 198 irq_proc_reg->cpu_int_status); 199 ath6kl_dbg(ATH6KL_DBG_IRQ, 200 "Error Int status: 0x%x\n", 201 irq_proc_reg->error_int_status); 202 ath6kl_dbg(ATH6KL_DBG_IRQ, 203 "Counter Int status: 0x%x\n", 204 irq_proc_reg->counter_int_status); 205 ath6kl_dbg(ATH6KL_DBG_IRQ, 206 "Mbox Frame: 0x%x\n", 207 irq_proc_reg->mbox_frame); 208 ath6kl_dbg(ATH6KL_DBG_IRQ, 209 "Rx Lookahead Valid: 0x%x\n", 210 irq_proc_reg->rx_lkahd_valid); 211 ath6kl_dbg(ATH6KL_DBG_IRQ, 212 "Rx Lookahead 0: 0x%x\n", 213 irq_proc_reg->rx_lkahd[0]); 214 ath6kl_dbg(ATH6KL_DBG_IRQ, 215 "Rx Lookahead 1: 0x%x\n", 216 irq_proc_reg->rx_lkahd[1]); 217 218 if (dev->ar->mbox_info.gmbox_addr != 0) { 219 /* 220 * If the target supports GMBOX hardware, dump some 221 * additional state. 222 */ 223 ath6kl_dbg(ATH6KL_DBG_IRQ, 224 "GMBOX Host Int status 2: 0x%x\n", 225 irq_proc_reg->host_int_status2); 226 ath6kl_dbg(ATH6KL_DBG_IRQ, 227 "GMBOX RX Avail: 0x%x\n", 228 irq_proc_reg->gmbox_rx_avail); 229 ath6kl_dbg(ATH6KL_DBG_IRQ, 230 "GMBOX lookahead alias 0: 0x%x\n", 231 irq_proc_reg->rx_gmbox_lkahd_alias[0]); 232 ath6kl_dbg(ATH6KL_DBG_IRQ, 233 "GMBOX lookahead alias 1: 0x%x\n", 234 irq_proc_reg->rx_gmbox_lkahd_alias[1]); 235 } 236 } 237 238 if (irq_enable_reg != NULL) { 239 ath6kl_dbg(ATH6KL_DBG_IRQ, 240 "Int status Enable: 0x%x\n", 241 irq_enable_reg->int_status_en); 242 ath6kl_dbg(ATH6KL_DBG_IRQ, "Counter Int status Enable: 0x%x\n", 243 irq_enable_reg->cntr_int_status_en); 244 } 245 ath6kl_dbg(ATH6KL_DBG_IRQ, "<------------------------------->\n"); 246 } 247 248 static void dump_cred_dist(struct htc_endpoint_credit_dist *ep_dist) 249 { 250 ath6kl_dbg(ATH6KL_DBG_CREDIT, 251 "--- endpoint: %d svc_id: 0x%X ---\n", 252 ep_dist->endpoint, ep_dist->svc_id); 253 ath6kl_dbg(ATH6KL_DBG_CREDIT, " dist_flags : 0x%X\n", 254 ep_dist->dist_flags); 255 ath6kl_dbg(ATH6KL_DBG_CREDIT, " cred_norm : %d\n", 256 ep_dist->cred_norm); 257 ath6kl_dbg(ATH6KL_DBG_CREDIT, " cred_min : %d\n", 258 ep_dist->cred_min); 259 ath6kl_dbg(ATH6KL_DBG_CREDIT, " credits : %d\n", 260 ep_dist->credits); 261 ath6kl_dbg(ATH6KL_DBG_CREDIT, " cred_assngd : %d\n", 262 ep_dist->cred_assngd); 263 ath6kl_dbg(ATH6KL_DBG_CREDIT, " seek_cred : %d\n", 264 ep_dist->seek_cred); 265 ath6kl_dbg(ATH6KL_DBG_CREDIT, " cred_sz : %d\n", 266 ep_dist->cred_sz); 267 ath6kl_dbg(ATH6KL_DBG_CREDIT, " cred_per_msg : %d\n", 268 ep_dist->cred_per_msg); 269 ath6kl_dbg(ATH6KL_DBG_CREDIT, " cred_to_dist : %d\n", 270 ep_dist->cred_to_dist); 271 ath6kl_dbg(ATH6KL_DBG_CREDIT, " txq_depth : %d\n", 272 get_queue_depth(&ep_dist->htc_ep->txq)); 273 ath6kl_dbg(ATH6KL_DBG_CREDIT, 274 "----------------------------------\n"); 275 } 276 277 /* FIXME: move to htc.c */ 278 void dump_cred_dist_stats(struct htc_target *target) 279 { 280 struct htc_endpoint_credit_dist *ep_list; 281 282 list_for_each_entry(ep_list, &target->cred_dist_list, list) 283 dump_cred_dist(ep_list); 284 285 ath6kl_dbg(ATH6KL_DBG_CREDIT, 286 "credit distribution total %d free %d\n", 287 target->credit_info->total_avail_credits, 288 target->credit_info->cur_free_credits); 289 } 290 291 void ath6kl_debug_war(struct ath6kl *ar, enum ath6kl_war war) 292 { 293 switch (war) { 294 case ATH6KL_WAR_INVALID_RATE: 295 ar->debug.war_stats.invalid_rate++; 296 break; 297 } 298 } 299 300 static ssize_t read_file_war_stats(struct file *file, char __user *user_buf, 301 size_t count, loff_t *ppos) 302 { 303 struct ath6kl *ar = file->private_data; 304 char *buf; 305 unsigned int len = 0, buf_len = 1500; 306 ssize_t ret_cnt; 307 308 buf = kzalloc(buf_len, GFP_KERNEL); 309 if (!buf) 310 return -ENOMEM; 311 312 len += scnprintf(buf + len, buf_len - len, "\n"); 313 len += scnprintf(buf + len, buf_len - len, "%25s\n", 314 "Workaround stats"); 315 len += scnprintf(buf + len, buf_len - len, "%25s\n\n", 316 "================="); 317 len += scnprintf(buf + len, buf_len - len, "%20s %10u\n", 318 "Invalid rates", ar->debug.war_stats.invalid_rate); 319 320 if (WARN_ON(len > buf_len)) 321 len = buf_len; 322 323 ret_cnt = simple_read_from_buffer(user_buf, count, ppos, buf, len); 324 325 kfree(buf); 326 return ret_cnt; 327 } 328 329 static const struct file_operations fops_war_stats = { 330 .read = read_file_war_stats, 331 .open = simple_open, 332 .owner = THIS_MODULE, 333 .llseek = default_llseek, 334 }; 335 336 void ath6kl_debug_fwlog_event(struct ath6kl *ar, const void *buf, size_t len) 337 { 338 struct ath6kl_fwlog_slot *slot; 339 struct sk_buff *skb; 340 size_t slot_len; 341 342 if (WARN_ON(len > ATH6KL_FWLOG_PAYLOAD_SIZE)) 343 return; 344 345 slot_len = sizeof(*slot) + ATH6KL_FWLOG_PAYLOAD_SIZE; 346 347 skb = alloc_skb(slot_len, GFP_KERNEL); 348 if (!skb) 349 return; 350 351 slot = skb_put(skb, slot_len); 352 slot->timestamp = cpu_to_le32(jiffies); 353 slot->length = cpu_to_le32(len); 354 memcpy(slot->payload, buf, len); 355 356 /* Need to pad each record to fixed length ATH6KL_FWLOG_PAYLOAD_SIZE */ 357 memset(slot->payload + len, 0, ATH6KL_FWLOG_PAYLOAD_SIZE - len); 358 359 spin_lock(&ar->debug.fwlog_queue.lock); 360 361 __skb_queue_tail(&ar->debug.fwlog_queue, skb); 362 complete(&ar->debug.fwlog_completion); 363 364 /* drop oldest entries */ 365 while (skb_queue_len(&ar->debug.fwlog_queue) > 366 ATH6KL_FWLOG_MAX_ENTRIES) { 367 skb = __skb_dequeue(&ar->debug.fwlog_queue); 368 kfree_skb(skb); 369 } 370 371 spin_unlock(&ar->debug.fwlog_queue.lock); 372 373 return; 374 } 375 376 static int ath6kl_fwlog_open(struct inode *inode, struct file *file) 377 { 378 struct ath6kl *ar = inode->i_private; 379 380 if (ar->debug.fwlog_open) 381 return -EBUSY; 382 383 ar->debug.fwlog_open = true; 384 385 file->private_data = inode->i_private; 386 return 0; 387 } 388 389 static int ath6kl_fwlog_release(struct inode *inode, struct file *file) 390 { 391 struct ath6kl *ar = inode->i_private; 392 393 ar->debug.fwlog_open = false; 394 395 return 0; 396 } 397 398 static ssize_t ath6kl_fwlog_read(struct file *file, char __user *user_buf, 399 size_t count, loff_t *ppos) 400 { 401 struct ath6kl *ar = file->private_data; 402 struct sk_buff *skb; 403 ssize_t ret_cnt; 404 size_t len = 0; 405 char *buf; 406 407 buf = vmalloc(count); 408 if (!buf) 409 return -ENOMEM; 410 411 /* read undelivered logs from firmware */ 412 ath6kl_read_fwlogs(ar); 413 414 spin_lock(&ar->debug.fwlog_queue.lock); 415 416 while ((skb = __skb_dequeue(&ar->debug.fwlog_queue))) { 417 if (skb->len > count - len) { 418 /* not enough space, put skb back and leave */ 419 __skb_queue_head(&ar->debug.fwlog_queue, skb); 420 break; 421 } 422 423 424 memcpy(buf + len, skb->data, skb->len); 425 len += skb->len; 426 427 kfree_skb(skb); 428 } 429 430 spin_unlock(&ar->debug.fwlog_queue.lock); 431 432 /* FIXME: what to do if len == 0? */ 433 434 ret_cnt = simple_read_from_buffer(user_buf, count, ppos, buf, len); 435 436 vfree(buf); 437 438 return ret_cnt; 439 } 440 441 static const struct file_operations fops_fwlog = { 442 .open = ath6kl_fwlog_open, 443 .release = ath6kl_fwlog_release, 444 .read = ath6kl_fwlog_read, 445 .owner = THIS_MODULE, 446 .llseek = default_llseek, 447 }; 448 449 static ssize_t ath6kl_fwlog_block_read(struct file *file, 450 char __user *user_buf, 451 size_t count, 452 loff_t *ppos) 453 { 454 struct ath6kl *ar = file->private_data; 455 struct sk_buff *skb; 456 ssize_t ret_cnt; 457 size_t len = 0, not_copied; 458 char *buf; 459 int ret; 460 461 buf = vmalloc(count); 462 if (!buf) 463 return -ENOMEM; 464 465 spin_lock(&ar->debug.fwlog_queue.lock); 466 467 if (skb_queue_len(&ar->debug.fwlog_queue) == 0) { 468 /* we must init under queue lock */ 469 init_completion(&ar->debug.fwlog_completion); 470 471 spin_unlock(&ar->debug.fwlog_queue.lock); 472 473 ret = wait_for_completion_interruptible( 474 &ar->debug.fwlog_completion); 475 if (ret == -ERESTARTSYS) { 476 vfree(buf); 477 return ret; 478 } 479 480 spin_lock(&ar->debug.fwlog_queue.lock); 481 } 482 483 while ((skb = __skb_dequeue(&ar->debug.fwlog_queue))) { 484 if (skb->len > count - len) { 485 /* not enough space, put skb back and leave */ 486 __skb_queue_head(&ar->debug.fwlog_queue, skb); 487 break; 488 } 489 490 491 memcpy(buf + len, skb->data, skb->len); 492 len += skb->len; 493 494 kfree_skb(skb); 495 } 496 497 spin_unlock(&ar->debug.fwlog_queue.lock); 498 499 /* FIXME: what to do if len == 0? */ 500 501 not_copied = copy_to_user(user_buf, buf, len); 502 if (not_copied != 0) { 503 ret_cnt = -EFAULT; 504 goto out; 505 } 506 507 *ppos = *ppos + len; 508 509 ret_cnt = len; 510 511 out: 512 vfree(buf); 513 514 return ret_cnt; 515 } 516 517 static const struct file_operations fops_fwlog_block = { 518 .open = ath6kl_fwlog_open, 519 .release = ath6kl_fwlog_release, 520 .read = ath6kl_fwlog_block_read, 521 .owner = THIS_MODULE, 522 .llseek = default_llseek, 523 }; 524 525 static ssize_t ath6kl_fwlog_mask_read(struct file *file, char __user *user_buf, 526 size_t count, loff_t *ppos) 527 { 528 struct ath6kl *ar = file->private_data; 529 char buf[16]; 530 int len; 531 532 len = snprintf(buf, sizeof(buf), "0x%x\n", ar->debug.fwlog_mask); 533 534 return simple_read_from_buffer(user_buf, count, ppos, buf, len); 535 } 536 537 static ssize_t ath6kl_fwlog_mask_write(struct file *file, 538 const char __user *user_buf, 539 size_t count, loff_t *ppos) 540 { 541 struct ath6kl *ar = file->private_data; 542 int ret; 543 544 ret = kstrtou32_from_user(user_buf, count, 0, &ar->debug.fwlog_mask); 545 if (ret) 546 return ret; 547 548 ret = ath6kl_wmi_config_debug_module_cmd(ar->wmi, 549 ATH6KL_FWLOG_VALID_MASK, 550 ar->debug.fwlog_mask); 551 if (ret) 552 return ret; 553 554 return count; 555 } 556 557 static const struct file_operations fops_fwlog_mask = { 558 .open = simple_open, 559 .read = ath6kl_fwlog_mask_read, 560 .write = ath6kl_fwlog_mask_write, 561 .owner = THIS_MODULE, 562 .llseek = default_llseek, 563 }; 564 565 static ssize_t read_file_tgt_stats(struct file *file, char __user *user_buf, 566 size_t count, loff_t *ppos) 567 { 568 struct ath6kl *ar = file->private_data; 569 struct ath6kl_vif *vif; 570 struct target_stats *tgt_stats; 571 char *buf; 572 unsigned int len = 0, buf_len = 1500; 573 int i; 574 ssize_t ret_cnt; 575 int rv; 576 577 vif = ath6kl_vif_first(ar); 578 if (!vif) 579 return -EIO; 580 581 buf = kzalloc(buf_len, GFP_KERNEL); 582 if (!buf) 583 return -ENOMEM; 584 585 rv = ath6kl_read_tgt_stats(ar, vif); 586 if (rv < 0) { 587 kfree(buf); 588 return rv; 589 } 590 591 tgt_stats = &vif->target_stats; 592 593 len += scnprintf(buf + len, buf_len - len, "\n"); 594 len += scnprintf(buf + len, buf_len - len, "%25s\n", 595 "Target Tx stats"); 596 len += scnprintf(buf + len, buf_len - len, "%25s\n\n", 597 "================="); 598 len += scnprintf(buf + len, buf_len - len, "%20s %10llu\n", 599 "Ucast packets", tgt_stats->tx_ucast_pkt); 600 len += scnprintf(buf + len, buf_len - len, "%20s %10llu\n", 601 "Bcast packets", tgt_stats->tx_bcast_pkt); 602 len += scnprintf(buf + len, buf_len - len, "%20s %10llu\n", 603 "Ucast byte", tgt_stats->tx_ucast_byte); 604 len += scnprintf(buf + len, buf_len - len, "%20s %10llu\n", 605 "Bcast byte", tgt_stats->tx_bcast_byte); 606 len += scnprintf(buf + len, buf_len - len, "%20s %10llu\n", 607 "Rts success cnt", tgt_stats->tx_rts_success_cnt); 608 for (i = 0; i < 4; i++) 609 len += scnprintf(buf + len, buf_len - len, 610 "%18s %d %10llu\n", "PER on ac", 611 i, tgt_stats->tx_pkt_per_ac[i]); 612 len += scnprintf(buf + len, buf_len - len, "%20s %10llu\n", 613 "Error", tgt_stats->tx_err); 614 len += scnprintf(buf + len, buf_len - len, "%20s %10llu\n", 615 "Fail count", tgt_stats->tx_fail_cnt); 616 len += scnprintf(buf + len, buf_len - len, "%20s %10llu\n", 617 "Retry count", tgt_stats->tx_retry_cnt); 618 len += scnprintf(buf + len, buf_len - len, "%20s %10llu\n", 619 "Multi retry cnt", tgt_stats->tx_mult_retry_cnt); 620 len += scnprintf(buf + len, buf_len - len, "%20s %10llu\n", 621 "Rts fail cnt", tgt_stats->tx_rts_fail_cnt); 622 len += scnprintf(buf + len, buf_len - len, "%25s %10llu\n\n", 623 "TKIP counter measure used", 624 tgt_stats->tkip_cnter_measures_invoked); 625 626 len += scnprintf(buf + len, buf_len - len, "%25s\n", 627 "Target Rx stats"); 628 len += scnprintf(buf + len, buf_len - len, "%25s\n", 629 "================="); 630 631 len += scnprintf(buf + len, buf_len - len, "%20s %10llu\n", 632 "Ucast packets", tgt_stats->rx_ucast_pkt); 633 len += scnprintf(buf + len, buf_len - len, "%20s %10d\n", 634 "Ucast Rate", tgt_stats->rx_ucast_rate); 635 len += scnprintf(buf + len, buf_len - len, "%20s %10llu\n", 636 "Bcast packets", tgt_stats->rx_bcast_pkt); 637 len += scnprintf(buf + len, buf_len - len, "%20s %10llu\n", 638 "Ucast byte", tgt_stats->rx_ucast_byte); 639 len += scnprintf(buf + len, buf_len - len, "%20s %10llu\n", 640 "Bcast byte", tgt_stats->rx_bcast_byte); 641 len += scnprintf(buf + len, buf_len - len, "%20s %10llu\n", 642 "Fragmented pkt", tgt_stats->rx_frgment_pkt); 643 len += scnprintf(buf + len, buf_len - len, "%20s %10llu\n", 644 "Error", tgt_stats->rx_err); 645 len += scnprintf(buf + len, buf_len - len, "%20s %10llu\n", 646 "CRC Err", tgt_stats->rx_crc_err); 647 len += scnprintf(buf + len, buf_len - len, "%20s %10llu\n", 648 "Key cache miss", tgt_stats->rx_key_cache_miss); 649 len += scnprintf(buf + len, buf_len - len, "%20s %10llu\n", 650 "Decrypt Err", tgt_stats->rx_decrypt_err); 651 len += scnprintf(buf + len, buf_len - len, "%20s %10llu\n", 652 "Duplicate frame", tgt_stats->rx_dupl_frame); 653 len += scnprintf(buf + len, buf_len - len, "%20s %10llu\n", 654 "Tkip Mic failure", tgt_stats->tkip_local_mic_fail); 655 len += scnprintf(buf + len, buf_len - len, "%20s %10llu\n", 656 "TKIP format err", tgt_stats->tkip_fmt_err); 657 len += scnprintf(buf + len, buf_len - len, "%20s %10llu\n", 658 "CCMP format Err", tgt_stats->ccmp_fmt_err); 659 len += scnprintf(buf + len, buf_len - len, "%20s %10llu\n\n", 660 "CCMP Replay Err", tgt_stats->ccmp_replays); 661 662 len += scnprintf(buf + len, buf_len - len, "%25s\n", 663 "Misc Target stats"); 664 len += scnprintf(buf + len, buf_len - len, "%25s\n", 665 "================="); 666 len += scnprintf(buf + len, buf_len - len, "%20s %10llu\n", 667 "Beacon Miss count", tgt_stats->cs_bmiss_cnt); 668 len += scnprintf(buf + len, buf_len - len, "%20s %10llu\n", 669 "Num Connects", tgt_stats->cs_connect_cnt); 670 len += scnprintf(buf + len, buf_len - len, "%20s %10llu\n", 671 "Num disconnects", tgt_stats->cs_discon_cnt); 672 len += scnprintf(buf + len, buf_len - len, "%20s %10d\n", 673 "Beacon avg rssi", tgt_stats->cs_ave_beacon_rssi); 674 len += scnprintf(buf + len, buf_len - len, "%20s %10d\n", 675 "ARP pkt received", tgt_stats->arp_received); 676 len += scnprintf(buf + len, buf_len - len, "%20s %10d\n", 677 "ARP pkt matched", tgt_stats->arp_matched); 678 len += scnprintf(buf + len, buf_len - len, "%20s %10d\n", 679 "ARP pkt replied", tgt_stats->arp_replied); 680 681 if (len > buf_len) 682 len = buf_len; 683 684 ret_cnt = simple_read_from_buffer(user_buf, count, ppos, buf, len); 685 686 kfree(buf); 687 return ret_cnt; 688 } 689 690 static const struct file_operations fops_tgt_stats = { 691 .read = read_file_tgt_stats, 692 .open = simple_open, 693 .owner = THIS_MODULE, 694 .llseek = default_llseek, 695 }; 696 697 #define print_credit_info(fmt_str, ep_list_field) \ 698 (len += scnprintf(buf + len, buf_len - len, fmt_str, \ 699 ep_list->ep_list_field)) 700 #define CREDIT_INFO_DISPLAY_STRING_LEN 200 701 #define CREDIT_INFO_LEN 128 702 703 static ssize_t read_file_credit_dist_stats(struct file *file, 704 char __user *user_buf, 705 size_t count, loff_t *ppos) 706 { 707 struct ath6kl *ar = file->private_data; 708 struct htc_target *target = ar->htc_target; 709 struct htc_endpoint_credit_dist *ep_list; 710 char *buf; 711 unsigned int buf_len, len = 0; 712 ssize_t ret_cnt; 713 714 buf_len = CREDIT_INFO_DISPLAY_STRING_LEN + 715 get_queue_depth(&target->cred_dist_list) * CREDIT_INFO_LEN; 716 buf = kzalloc(buf_len, GFP_KERNEL); 717 if (!buf) 718 return -ENOMEM; 719 720 len += scnprintf(buf + len, buf_len - len, "%25s%5d\n", 721 "Total Avail Credits: ", 722 target->credit_info->total_avail_credits); 723 len += scnprintf(buf + len, buf_len - len, "%25s%5d\n", 724 "Free credits :", 725 target->credit_info->cur_free_credits); 726 727 len += scnprintf(buf + len, buf_len - len, 728 " Epid Flags Cred_norm Cred_min Credits Cred_assngd" 729 " Seek_cred Cred_sz Cred_per_msg Cred_to_dist" 730 " qdepth\n"); 731 732 list_for_each_entry(ep_list, &target->cred_dist_list, list) { 733 print_credit_info(" %2d", endpoint); 734 print_credit_info("%10x", dist_flags); 735 print_credit_info("%8d", cred_norm); 736 print_credit_info("%9d", cred_min); 737 print_credit_info("%9d", credits); 738 print_credit_info("%10d", cred_assngd); 739 print_credit_info("%13d", seek_cred); 740 print_credit_info("%12d", cred_sz); 741 print_credit_info("%9d", cred_per_msg); 742 print_credit_info("%14d", cred_to_dist); 743 len += scnprintf(buf + len, buf_len - len, "%12d\n", 744 get_queue_depth(&ep_list->htc_ep->txq)); 745 } 746 747 if (len > buf_len) 748 len = buf_len; 749 750 ret_cnt = simple_read_from_buffer(user_buf, count, ppos, buf, len); 751 kfree(buf); 752 return ret_cnt; 753 } 754 755 static const struct file_operations fops_credit_dist_stats = { 756 .read = read_file_credit_dist_stats, 757 .open = simple_open, 758 .owner = THIS_MODULE, 759 .llseek = default_llseek, 760 }; 761 762 static unsigned int print_endpoint_stat(struct htc_target *target, char *buf, 763 unsigned int buf_len, unsigned int len, 764 int offset, const char *name) 765 { 766 int i; 767 struct htc_endpoint_stats *ep_st; 768 u32 *counter; 769 770 len += scnprintf(buf + len, buf_len - len, "%s:", name); 771 for (i = 0; i < ENDPOINT_MAX; i++) { 772 ep_st = &target->endpoint[i].ep_st; 773 counter = ((u32 *) ep_st) + (offset / 4); 774 len += scnprintf(buf + len, buf_len - len, " %u", *counter); 775 } 776 len += scnprintf(buf + len, buf_len - len, "\n"); 777 778 return len; 779 } 780 781 static ssize_t ath6kl_endpoint_stats_read(struct file *file, 782 char __user *user_buf, 783 size_t count, loff_t *ppos) 784 { 785 struct ath6kl *ar = file->private_data; 786 struct htc_target *target = ar->htc_target; 787 char *buf; 788 unsigned int buf_len, len = 0; 789 ssize_t ret_cnt; 790 791 buf_len = sizeof(struct htc_endpoint_stats) / sizeof(u32) * 792 (25 + ENDPOINT_MAX * 11); 793 buf = kmalloc(buf_len, GFP_KERNEL); 794 if (!buf) 795 return -ENOMEM; 796 797 #define EPSTAT(name) \ 798 do { \ 799 len = print_endpoint_stat(target, buf, buf_len, len, \ 800 offsetof(struct htc_endpoint_stats, \ 801 name), \ 802 #name); \ 803 } while (0) 804 805 EPSTAT(cred_low_indicate); 806 EPSTAT(tx_issued); 807 EPSTAT(tx_pkt_bundled); 808 EPSTAT(tx_bundles); 809 EPSTAT(tx_dropped); 810 EPSTAT(tx_cred_rpt); 811 EPSTAT(cred_rpt_from_rx); 812 EPSTAT(cred_rpt_from_other); 813 EPSTAT(cred_rpt_ep0); 814 EPSTAT(cred_from_rx); 815 EPSTAT(cred_from_other); 816 EPSTAT(cred_from_ep0); 817 EPSTAT(cred_cosumd); 818 EPSTAT(cred_retnd); 819 EPSTAT(rx_pkts); 820 EPSTAT(rx_lkahds); 821 EPSTAT(rx_bundl); 822 EPSTAT(rx_bundle_lkahd); 823 EPSTAT(rx_bundle_from_hdr); 824 EPSTAT(rx_alloc_thresh_hit); 825 EPSTAT(rxalloc_thresh_byte); 826 #undef EPSTAT 827 828 if (len > buf_len) 829 len = buf_len; 830 831 ret_cnt = simple_read_from_buffer(user_buf, count, ppos, buf, len); 832 kfree(buf); 833 return ret_cnt; 834 } 835 836 static ssize_t ath6kl_endpoint_stats_write(struct file *file, 837 const char __user *user_buf, 838 size_t count, loff_t *ppos) 839 { 840 struct ath6kl *ar = file->private_data; 841 struct htc_target *target = ar->htc_target; 842 int ret, i; 843 u32 val; 844 struct htc_endpoint_stats *ep_st; 845 846 ret = kstrtou32_from_user(user_buf, count, 0, &val); 847 if (ret) 848 return ret; 849 if (val == 0) { 850 for (i = 0; i < ENDPOINT_MAX; i++) { 851 ep_st = &target->endpoint[i].ep_st; 852 memset(ep_st, 0, sizeof(*ep_st)); 853 } 854 } 855 856 return count; 857 } 858 859 static const struct file_operations fops_endpoint_stats = { 860 .open = simple_open, 861 .read = ath6kl_endpoint_stats_read, 862 .write = ath6kl_endpoint_stats_write, 863 .owner = THIS_MODULE, 864 .llseek = default_llseek, 865 }; 866 867 static unsigned long ath6kl_get_num_reg(void) 868 { 869 int i; 870 unsigned long n_reg = 0; 871 872 for (i = 0; i < ARRAY_SIZE(diag_reg); i++) 873 n_reg = n_reg + 874 (diag_reg[i].reg_end - diag_reg[i].reg_start) / 4 + 1; 875 876 return n_reg; 877 } 878 879 static bool ath6kl_dbg_is_diag_reg_valid(u32 reg_addr) 880 { 881 int i; 882 883 for (i = 0; i < ARRAY_SIZE(diag_reg); i++) { 884 if (reg_addr >= diag_reg[i].reg_start && 885 reg_addr <= diag_reg[i].reg_end) 886 return true; 887 } 888 889 return false; 890 } 891 892 static ssize_t ath6kl_regread_read(struct file *file, char __user *user_buf, 893 size_t count, loff_t *ppos) 894 { 895 struct ath6kl *ar = file->private_data; 896 u8 buf[50]; 897 unsigned int len = 0; 898 899 if (ar->debug.dbgfs_diag_reg) 900 len += scnprintf(buf + len, sizeof(buf) - len, "0x%x\n", 901 ar->debug.dbgfs_diag_reg); 902 else 903 len += scnprintf(buf + len, sizeof(buf) - len, 904 "All diag registers\n"); 905 906 return simple_read_from_buffer(user_buf, count, ppos, buf, len); 907 } 908 909 static ssize_t ath6kl_regread_write(struct file *file, 910 const char __user *user_buf, 911 size_t count, loff_t *ppos) 912 { 913 struct ath6kl *ar = file->private_data; 914 unsigned long reg_addr; 915 916 if (kstrtoul_from_user(user_buf, count, 0, ®_addr)) 917 return -EINVAL; 918 919 if ((reg_addr % 4) != 0) 920 return -EINVAL; 921 922 if (reg_addr && !ath6kl_dbg_is_diag_reg_valid(reg_addr)) 923 return -EINVAL; 924 925 ar->debug.dbgfs_diag_reg = reg_addr; 926 927 return count; 928 } 929 930 static const struct file_operations fops_diag_reg_read = { 931 .read = ath6kl_regread_read, 932 .write = ath6kl_regread_write, 933 .open = simple_open, 934 .owner = THIS_MODULE, 935 .llseek = default_llseek, 936 }; 937 938 static int ath6kl_regdump_open(struct inode *inode, struct file *file) 939 { 940 struct ath6kl *ar = inode->i_private; 941 u8 *buf; 942 unsigned long int reg_len; 943 unsigned int len = 0, n_reg; 944 u32 addr; 945 __le32 reg_val; 946 int i, status; 947 948 /* Dump all the registers if no register is specified */ 949 if (!ar->debug.dbgfs_diag_reg) 950 n_reg = ath6kl_get_num_reg(); 951 else 952 n_reg = 1; 953 954 reg_len = n_reg * REG_OUTPUT_LEN_PER_LINE; 955 if (n_reg > 1) 956 reg_len += REGTYPE_STR_LEN; 957 958 buf = vmalloc(reg_len); 959 if (!buf) 960 return -ENOMEM; 961 962 if (n_reg == 1) { 963 addr = ar->debug.dbgfs_diag_reg; 964 965 status = ath6kl_diag_read32(ar, 966 TARG_VTOP(ar->target_type, addr), 967 (u32 *)®_val); 968 if (status) 969 goto fail_reg_read; 970 971 len += scnprintf(buf + len, reg_len - len, 972 "0x%06x 0x%08x\n", addr, le32_to_cpu(reg_val)); 973 goto done; 974 } 975 976 for (i = 0; i < ARRAY_SIZE(diag_reg); i++) { 977 len += scnprintf(buf + len, reg_len - len, 978 "%s\n", diag_reg[i].reg_info); 979 for (addr = diag_reg[i].reg_start; 980 addr <= diag_reg[i].reg_end; addr += 4) { 981 status = ath6kl_diag_read32(ar, 982 TARG_VTOP(ar->target_type, addr), 983 (u32 *)®_val); 984 if (status) 985 goto fail_reg_read; 986 987 len += scnprintf(buf + len, reg_len - len, 988 "0x%06x 0x%08x\n", 989 addr, le32_to_cpu(reg_val)); 990 } 991 } 992 993 done: 994 file->private_data = buf; 995 return 0; 996 997 fail_reg_read: 998 ath6kl_warn("Unable to read memory:%u\n", addr); 999 vfree(buf); 1000 return -EIO; 1001 } 1002 1003 static ssize_t ath6kl_regdump_read(struct file *file, char __user *user_buf, 1004 size_t count, loff_t *ppos) 1005 { 1006 u8 *buf = file->private_data; 1007 return simple_read_from_buffer(user_buf, count, ppos, buf, strlen(buf)); 1008 } 1009 1010 static int ath6kl_regdump_release(struct inode *inode, struct file *file) 1011 { 1012 vfree(file->private_data); 1013 return 0; 1014 } 1015 1016 static const struct file_operations fops_reg_dump = { 1017 .open = ath6kl_regdump_open, 1018 .read = ath6kl_regdump_read, 1019 .release = ath6kl_regdump_release, 1020 .owner = THIS_MODULE, 1021 .llseek = default_llseek, 1022 }; 1023 1024 static ssize_t ath6kl_lrssi_roam_write(struct file *file, 1025 const char __user *user_buf, 1026 size_t count, loff_t *ppos) 1027 { 1028 struct ath6kl *ar = file->private_data; 1029 unsigned long lrssi_roam_threshold; 1030 1031 if (kstrtoul_from_user(user_buf, count, 0, &lrssi_roam_threshold)) 1032 return -EINVAL; 1033 1034 ar->lrssi_roam_threshold = lrssi_roam_threshold; 1035 1036 ath6kl_wmi_set_roam_lrssi_cmd(ar->wmi, ar->lrssi_roam_threshold); 1037 1038 return count; 1039 } 1040 1041 static ssize_t ath6kl_lrssi_roam_read(struct file *file, 1042 char __user *user_buf, 1043 size_t count, loff_t *ppos) 1044 { 1045 struct ath6kl *ar = file->private_data; 1046 char buf[32]; 1047 unsigned int len; 1048 1049 len = snprintf(buf, sizeof(buf), "%u\n", ar->lrssi_roam_threshold); 1050 1051 return simple_read_from_buffer(user_buf, count, ppos, buf, len); 1052 } 1053 1054 static const struct file_operations fops_lrssi_roam_threshold = { 1055 .read = ath6kl_lrssi_roam_read, 1056 .write = ath6kl_lrssi_roam_write, 1057 .open = simple_open, 1058 .owner = THIS_MODULE, 1059 .llseek = default_llseek, 1060 }; 1061 1062 static ssize_t ath6kl_regwrite_read(struct file *file, 1063 char __user *user_buf, 1064 size_t count, loff_t *ppos) 1065 { 1066 struct ath6kl *ar = file->private_data; 1067 u8 buf[32]; 1068 unsigned int len = 0; 1069 1070 len = scnprintf(buf, sizeof(buf), "Addr: 0x%x Val: 0x%x\n", 1071 ar->debug.diag_reg_addr_wr, ar->debug.diag_reg_val_wr); 1072 1073 return simple_read_from_buffer(user_buf, count, ppos, buf, len); 1074 } 1075 1076 static ssize_t ath6kl_regwrite_write(struct file *file, 1077 const char __user *user_buf, 1078 size_t count, loff_t *ppos) 1079 { 1080 struct ath6kl *ar = file->private_data; 1081 char buf[32]; 1082 char *sptr, *token; 1083 unsigned int len = 0; 1084 u32 reg_addr, reg_val; 1085 1086 len = min(count, sizeof(buf) - 1); 1087 if (copy_from_user(buf, user_buf, len)) 1088 return -EFAULT; 1089 1090 buf[len] = '\0'; 1091 sptr = buf; 1092 1093 token = strsep(&sptr, "="); 1094 if (!token) 1095 return -EINVAL; 1096 1097 if (kstrtou32(token, 0, ®_addr)) 1098 return -EINVAL; 1099 1100 if (!ath6kl_dbg_is_diag_reg_valid(reg_addr)) 1101 return -EINVAL; 1102 1103 if (kstrtou32(sptr, 0, ®_val)) 1104 return -EINVAL; 1105 1106 ar->debug.diag_reg_addr_wr = reg_addr; 1107 ar->debug.diag_reg_val_wr = reg_val; 1108 1109 if (ath6kl_diag_write32(ar, ar->debug.diag_reg_addr_wr, 1110 cpu_to_le32(ar->debug.diag_reg_val_wr))) 1111 return -EIO; 1112 1113 return count; 1114 } 1115 1116 static const struct file_operations fops_diag_reg_write = { 1117 .read = ath6kl_regwrite_read, 1118 .write = ath6kl_regwrite_write, 1119 .open = simple_open, 1120 .owner = THIS_MODULE, 1121 .llseek = default_llseek, 1122 }; 1123 1124 int ath6kl_debug_roam_tbl_event(struct ath6kl *ar, const void *buf, 1125 size_t len) 1126 { 1127 const struct wmi_target_roam_tbl *tbl; 1128 u16 num_entries; 1129 1130 if (len < sizeof(*tbl)) 1131 return -EINVAL; 1132 1133 tbl = (const struct wmi_target_roam_tbl *) buf; 1134 num_entries = le16_to_cpu(tbl->num_entries); 1135 if (struct_size(tbl, info, num_entries) > len) 1136 return -EINVAL; 1137 1138 if (ar->debug.roam_tbl == NULL || 1139 ar->debug.roam_tbl_len < (unsigned int) len) { 1140 kfree(ar->debug.roam_tbl); 1141 ar->debug.roam_tbl = kmalloc(len, GFP_ATOMIC); 1142 if (ar->debug.roam_tbl == NULL) 1143 return -ENOMEM; 1144 } 1145 1146 memcpy(ar->debug.roam_tbl, buf, len); 1147 ar->debug.roam_tbl_len = len; 1148 1149 if (test_bit(ROAM_TBL_PEND, &ar->flag)) { 1150 clear_bit(ROAM_TBL_PEND, &ar->flag); 1151 wake_up(&ar->event_wq); 1152 } 1153 1154 return 0; 1155 } 1156 1157 static ssize_t ath6kl_roam_table_read(struct file *file, char __user *user_buf, 1158 size_t count, loff_t *ppos) 1159 { 1160 struct ath6kl *ar = file->private_data; 1161 int ret; 1162 long left; 1163 struct wmi_target_roam_tbl *tbl; 1164 u16 num_entries, i; 1165 char *buf; 1166 unsigned int len, buf_len; 1167 ssize_t ret_cnt; 1168 1169 if (down_interruptible(&ar->sem)) 1170 return -EBUSY; 1171 1172 set_bit(ROAM_TBL_PEND, &ar->flag); 1173 1174 ret = ath6kl_wmi_get_roam_tbl_cmd(ar->wmi); 1175 if (ret) { 1176 up(&ar->sem); 1177 return ret; 1178 } 1179 1180 left = wait_event_interruptible_timeout( 1181 ar->event_wq, !test_bit(ROAM_TBL_PEND, &ar->flag), WMI_TIMEOUT); 1182 up(&ar->sem); 1183 1184 if (left <= 0) 1185 return -ETIMEDOUT; 1186 1187 if (ar->debug.roam_tbl == NULL) 1188 return -ENOMEM; 1189 1190 tbl = (struct wmi_target_roam_tbl *) ar->debug.roam_tbl; 1191 num_entries = le16_to_cpu(tbl->num_entries); 1192 1193 buf_len = 100 + num_entries * 100; 1194 buf = kzalloc(buf_len, GFP_KERNEL); 1195 if (buf == NULL) 1196 return -ENOMEM; 1197 len = 0; 1198 len += scnprintf(buf + len, buf_len - len, 1199 "roam_mode=%u\n\n" 1200 "# roam_util bssid rssi rssidt last_rssi util bias\n", 1201 le16_to_cpu(tbl->roam_mode)); 1202 1203 for (i = 0; i < num_entries; i++) { 1204 struct wmi_bss_roam_info *info = &tbl->info[i]; 1205 len += scnprintf(buf + len, buf_len - len, 1206 "%d %pM %d %d %d %d %d\n", 1207 a_sle32_to_cpu(info->roam_util), info->bssid, 1208 info->rssi, info->rssidt, info->last_rssi, 1209 info->util, info->bias); 1210 } 1211 1212 if (len > buf_len) 1213 len = buf_len; 1214 1215 ret_cnt = simple_read_from_buffer(user_buf, count, ppos, buf, len); 1216 1217 kfree(buf); 1218 return ret_cnt; 1219 } 1220 1221 static const struct file_operations fops_roam_table = { 1222 .read = ath6kl_roam_table_read, 1223 .open = simple_open, 1224 .owner = THIS_MODULE, 1225 .llseek = default_llseek, 1226 }; 1227 1228 static ssize_t ath6kl_force_roam_write(struct file *file, 1229 const char __user *user_buf, 1230 size_t count, loff_t *ppos) 1231 { 1232 struct ath6kl *ar = file->private_data; 1233 int ret; 1234 char buf[20]; 1235 size_t len; 1236 u8 bssid[ETH_ALEN]; 1237 1238 len = min(count, sizeof(buf) - 1); 1239 if (copy_from_user(buf, user_buf, len)) 1240 return -EFAULT; 1241 buf[len] = '\0'; 1242 1243 if (!mac_pton(buf, bssid)) 1244 return -EINVAL; 1245 1246 ret = ath6kl_wmi_force_roam_cmd(ar->wmi, bssid); 1247 if (ret) 1248 return ret; 1249 1250 return count; 1251 } 1252 1253 static const struct file_operations fops_force_roam = { 1254 .write = ath6kl_force_roam_write, 1255 .open = simple_open, 1256 .owner = THIS_MODULE, 1257 .llseek = default_llseek, 1258 }; 1259 1260 static ssize_t ath6kl_roam_mode_write(struct file *file, 1261 const char __user *user_buf, 1262 size_t count, loff_t *ppos) 1263 { 1264 struct ath6kl *ar = file->private_data; 1265 int ret; 1266 char buf[20]; 1267 size_t len; 1268 enum wmi_roam_mode mode; 1269 1270 len = min(count, sizeof(buf) - 1); 1271 if (copy_from_user(buf, user_buf, len)) 1272 return -EFAULT; 1273 buf[len] = '\0'; 1274 if (len > 0 && buf[len - 1] == '\n') 1275 buf[len - 1] = '\0'; 1276 1277 if (strcasecmp(buf, "default") == 0) 1278 mode = WMI_DEFAULT_ROAM_MODE; 1279 else if (strcasecmp(buf, "bssbias") == 0) 1280 mode = WMI_HOST_BIAS_ROAM_MODE; 1281 else if (strcasecmp(buf, "lock") == 0) 1282 mode = WMI_LOCK_BSS_MODE; 1283 else 1284 return -EINVAL; 1285 1286 ret = ath6kl_wmi_set_roam_mode_cmd(ar->wmi, mode); 1287 if (ret) 1288 return ret; 1289 1290 return count; 1291 } 1292 1293 static const struct file_operations fops_roam_mode = { 1294 .write = ath6kl_roam_mode_write, 1295 .open = simple_open, 1296 .owner = THIS_MODULE, 1297 .llseek = default_llseek, 1298 }; 1299 1300 void ath6kl_debug_set_keepalive(struct ath6kl *ar, u8 keepalive) 1301 { 1302 ar->debug.keepalive = keepalive; 1303 } 1304 1305 static ssize_t ath6kl_keepalive_read(struct file *file, char __user *user_buf, 1306 size_t count, loff_t *ppos) 1307 { 1308 struct ath6kl *ar = file->private_data; 1309 char buf[16]; 1310 int len; 1311 1312 len = snprintf(buf, sizeof(buf), "%u\n", ar->debug.keepalive); 1313 1314 return simple_read_from_buffer(user_buf, count, ppos, buf, len); 1315 } 1316 1317 static ssize_t ath6kl_keepalive_write(struct file *file, 1318 const char __user *user_buf, 1319 size_t count, loff_t *ppos) 1320 { 1321 struct ath6kl *ar = file->private_data; 1322 int ret; 1323 u8 val; 1324 1325 ret = kstrtou8_from_user(user_buf, count, 0, &val); 1326 if (ret) 1327 return ret; 1328 1329 ret = ath6kl_wmi_set_keepalive_cmd(ar->wmi, 0, val); 1330 if (ret) 1331 return ret; 1332 1333 return count; 1334 } 1335 1336 static const struct file_operations fops_keepalive = { 1337 .open = simple_open, 1338 .read = ath6kl_keepalive_read, 1339 .write = ath6kl_keepalive_write, 1340 .owner = THIS_MODULE, 1341 .llseek = default_llseek, 1342 }; 1343 1344 void ath6kl_debug_set_disconnect_timeout(struct ath6kl *ar, u8 timeout) 1345 { 1346 ar->debug.disc_timeout = timeout; 1347 } 1348 1349 static ssize_t ath6kl_disconnect_timeout_read(struct file *file, 1350 char __user *user_buf, 1351 size_t count, loff_t *ppos) 1352 { 1353 struct ath6kl *ar = file->private_data; 1354 char buf[16]; 1355 int len; 1356 1357 len = snprintf(buf, sizeof(buf), "%u\n", ar->debug.disc_timeout); 1358 1359 return simple_read_from_buffer(user_buf, count, ppos, buf, len); 1360 } 1361 1362 static ssize_t ath6kl_disconnect_timeout_write(struct file *file, 1363 const char __user *user_buf, 1364 size_t count, loff_t *ppos) 1365 { 1366 struct ath6kl *ar = file->private_data; 1367 int ret; 1368 u8 val; 1369 1370 ret = kstrtou8_from_user(user_buf, count, 0, &val); 1371 if (ret) 1372 return ret; 1373 1374 ret = ath6kl_wmi_disctimeout_cmd(ar->wmi, 0, val); 1375 if (ret) 1376 return ret; 1377 1378 return count; 1379 } 1380 1381 static const struct file_operations fops_disconnect_timeout = { 1382 .open = simple_open, 1383 .read = ath6kl_disconnect_timeout_read, 1384 .write = ath6kl_disconnect_timeout_write, 1385 .owner = THIS_MODULE, 1386 .llseek = default_llseek, 1387 }; 1388 1389 static ssize_t ath6kl_create_qos_write(struct file *file, 1390 const char __user *user_buf, 1391 size_t count, loff_t *ppos) 1392 { 1393 struct ath6kl *ar = file->private_data; 1394 struct ath6kl_vif *vif; 1395 char buf[200]; 1396 ssize_t len; 1397 char *sptr, *token; 1398 struct wmi_create_pstream_cmd pstream; 1399 u32 val32; 1400 u16 val16; 1401 1402 vif = ath6kl_vif_first(ar); 1403 if (!vif) 1404 return -EIO; 1405 1406 len = min(count, sizeof(buf) - 1); 1407 if (copy_from_user(buf, user_buf, len)) 1408 return -EFAULT; 1409 buf[len] = '\0'; 1410 sptr = buf; 1411 1412 token = strsep(&sptr, " "); 1413 if (!token) 1414 return -EINVAL; 1415 if (kstrtou8(token, 0, &pstream.user_pri)) 1416 return -EINVAL; 1417 1418 token = strsep(&sptr, " "); 1419 if (!token) 1420 return -EINVAL; 1421 if (kstrtou8(token, 0, &pstream.traffic_direc)) 1422 return -EINVAL; 1423 1424 token = strsep(&sptr, " "); 1425 if (!token) 1426 return -EINVAL; 1427 if (kstrtou8(token, 0, &pstream.traffic_class)) 1428 return -EINVAL; 1429 1430 token = strsep(&sptr, " "); 1431 if (!token) 1432 return -EINVAL; 1433 if (kstrtou8(token, 0, &pstream.traffic_type)) 1434 return -EINVAL; 1435 1436 token = strsep(&sptr, " "); 1437 if (!token) 1438 return -EINVAL; 1439 if (kstrtou8(token, 0, &pstream.voice_psc_cap)) 1440 return -EINVAL; 1441 1442 token = strsep(&sptr, " "); 1443 if (!token) 1444 return -EINVAL; 1445 if (kstrtou32(token, 0, &val32)) 1446 return -EINVAL; 1447 pstream.min_service_int = cpu_to_le32(val32); 1448 1449 token = strsep(&sptr, " "); 1450 if (!token) 1451 return -EINVAL; 1452 if (kstrtou32(token, 0, &val32)) 1453 return -EINVAL; 1454 pstream.max_service_int = cpu_to_le32(val32); 1455 1456 token = strsep(&sptr, " "); 1457 if (!token) 1458 return -EINVAL; 1459 if (kstrtou32(token, 0, &val32)) 1460 return -EINVAL; 1461 pstream.inactivity_int = cpu_to_le32(val32); 1462 1463 token = strsep(&sptr, " "); 1464 if (!token) 1465 return -EINVAL; 1466 if (kstrtou32(token, 0, &val32)) 1467 return -EINVAL; 1468 pstream.suspension_int = cpu_to_le32(val32); 1469 1470 token = strsep(&sptr, " "); 1471 if (!token) 1472 return -EINVAL; 1473 if (kstrtou32(token, 0, &val32)) 1474 return -EINVAL; 1475 pstream.service_start_time = cpu_to_le32(val32); 1476 1477 token = strsep(&sptr, " "); 1478 if (!token) 1479 return -EINVAL; 1480 if (kstrtou8(token, 0, &pstream.tsid)) 1481 return -EINVAL; 1482 1483 token = strsep(&sptr, " "); 1484 if (!token) 1485 return -EINVAL; 1486 if (kstrtou16(token, 0, &val16)) 1487 return -EINVAL; 1488 pstream.nominal_msdu = cpu_to_le16(val16); 1489 1490 token = strsep(&sptr, " "); 1491 if (!token) 1492 return -EINVAL; 1493 if (kstrtou16(token, 0, &val16)) 1494 return -EINVAL; 1495 pstream.max_msdu = cpu_to_le16(val16); 1496 1497 token = strsep(&sptr, " "); 1498 if (!token) 1499 return -EINVAL; 1500 if (kstrtou32(token, 0, &val32)) 1501 return -EINVAL; 1502 pstream.min_data_rate = cpu_to_le32(val32); 1503 1504 token = strsep(&sptr, " "); 1505 if (!token) 1506 return -EINVAL; 1507 if (kstrtou32(token, 0, &val32)) 1508 return -EINVAL; 1509 pstream.mean_data_rate = cpu_to_le32(val32); 1510 1511 token = strsep(&sptr, " "); 1512 if (!token) 1513 return -EINVAL; 1514 if (kstrtou32(token, 0, &val32)) 1515 return -EINVAL; 1516 pstream.peak_data_rate = cpu_to_le32(val32); 1517 1518 token = strsep(&sptr, " "); 1519 if (!token) 1520 return -EINVAL; 1521 if (kstrtou32(token, 0, &val32)) 1522 return -EINVAL; 1523 pstream.max_burst_size = cpu_to_le32(val32); 1524 1525 token = strsep(&sptr, " "); 1526 if (!token) 1527 return -EINVAL; 1528 if (kstrtou32(token, 0, &val32)) 1529 return -EINVAL; 1530 pstream.delay_bound = cpu_to_le32(val32); 1531 1532 token = strsep(&sptr, " "); 1533 if (!token) 1534 return -EINVAL; 1535 if (kstrtou32(token, 0, &val32)) 1536 return -EINVAL; 1537 pstream.min_phy_rate = cpu_to_le32(val32); 1538 1539 token = strsep(&sptr, " "); 1540 if (!token) 1541 return -EINVAL; 1542 if (kstrtou32(token, 0, &val32)) 1543 return -EINVAL; 1544 pstream.sba = cpu_to_le32(val32); 1545 1546 token = strsep(&sptr, " "); 1547 if (!token) 1548 return -EINVAL; 1549 if (kstrtou32(token, 0, &val32)) 1550 return -EINVAL; 1551 pstream.medium_time = cpu_to_le32(val32); 1552 1553 pstream.nominal_phy = le32_to_cpu(pstream.min_phy_rate) / 1000000; 1554 1555 ath6kl_wmi_create_pstream_cmd(ar->wmi, vif->fw_vif_idx, &pstream); 1556 1557 return count; 1558 } 1559 1560 static const struct file_operations fops_create_qos = { 1561 .write = ath6kl_create_qos_write, 1562 .open = simple_open, 1563 .owner = THIS_MODULE, 1564 .llseek = default_llseek, 1565 }; 1566 1567 static ssize_t ath6kl_delete_qos_write(struct file *file, 1568 const char __user *user_buf, 1569 size_t count, loff_t *ppos) 1570 { 1571 struct ath6kl *ar = file->private_data; 1572 struct ath6kl_vif *vif; 1573 char buf[100]; 1574 ssize_t len; 1575 char *sptr, *token; 1576 u8 traffic_class; 1577 u8 tsid; 1578 1579 vif = ath6kl_vif_first(ar); 1580 if (!vif) 1581 return -EIO; 1582 1583 len = min(count, sizeof(buf) - 1); 1584 if (copy_from_user(buf, user_buf, len)) 1585 return -EFAULT; 1586 buf[len] = '\0'; 1587 sptr = buf; 1588 1589 token = strsep(&sptr, " "); 1590 if (!token) 1591 return -EINVAL; 1592 if (kstrtou8(token, 0, &traffic_class)) 1593 return -EINVAL; 1594 1595 token = strsep(&sptr, " "); 1596 if (!token) 1597 return -EINVAL; 1598 if (kstrtou8(token, 0, &tsid)) 1599 return -EINVAL; 1600 1601 ath6kl_wmi_delete_pstream_cmd(ar->wmi, vif->fw_vif_idx, 1602 traffic_class, tsid); 1603 1604 return count; 1605 } 1606 1607 static const struct file_operations fops_delete_qos = { 1608 .write = ath6kl_delete_qos_write, 1609 .open = simple_open, 1610 .owner = THIS_MODULE, 1611 .llseek = default_llseek, 1612 }; 1613 1614 static ssize_t ath6kl_bgscan_int_write(struct file *file, 1615 const char __user *user_buf, 1616 size_t count, loff_t *ppos) 1617 { 1618 struct ath6kl *ar = file->private_data; 1619 struct ath6kl_vif *vif; 1620 u16 bgscan_int; 1621 char buf[32]; 1622 ssize_t len; 1623 1624 vif = ath6kl_vif_first(ar); 1625 if (!vif) 1626 return -EIO; 1627 1628 len = min(count, sizeof(buf) - 1); 1629 if (copy_from_user(buf, user_buf, len)) 1630 return -EFAULT; 1631 1632 buf[len] = '\0'; 1633 if (kstrtou16(buf, 0, &bgscan_int)) 1634 return -EINVAL; 1635 1636 if (bgscan_int == 0) 1637 bgscan_int = 0xffff; 1638 1639 vif->bg_scan_period = bgscan_int; 1640 1641 ath6kl_wmi_scanparams_cmd(ar->wmi, 0, 0, 0, bgscan_int, 0, 0, 0, 3, 1642 0, 0, 0); 1643 1644 return count; 1645 } 1646 1647 static const struct file_operations fops_bgscan_int = { 1648 .write = ath6kl_bgscan_int_write, 1649 .open = simple_open, 1650 .owner = THIS_MODULE, 1651 .llseek = default_llseek, 1652 }; 1653 1654 static ssize_t ath6kl_listen_int_write(struct file *file, 1655 const char __user *user_buf, 1656 size_t count, loff_t *ppos) 1657 { 1658 struct ath6kl *ar = file->private_data; 1659 struct ath6kl_vif *vif; 1660 u16 listen_interval; 1661 char buf[32]; 1662 ssize_t len; 1663 1664 vif = ath6kl_vif_first(ar); 1665 if (!vif) 1666 return -EIO; 1667 1668 len = min(count, sizeof(buf) - 1); 1669 if (copy_from_user(buf, user_buf, len)) 1670 return -EFAULT; 1671 1672 buf[len] = '\0'; 1673 if (kstrtou16(buf, 0, &listen_interval)) 1674 return -EINVAL; 1675 1676 if ((listen_interval < 15) || (listen_interval > 3000)) 1677 return -EINVAL; 1678 1679 vif->listen_intvl_t = listen_interval; 1680 ath6kl_wmi_listeninterval_cmd(ar->wmi, vif->fw_vif_idx, 1681 vif->listen_intvl_t, 0); 1682 1683 return count; 1684 } 1685 1686 static ssize_t ath6kl_listen_int_read(struct file *file, 1687 char __user *user_buf, 1688 size_t count, loff_t *ppos) 1689 { 1690 struct ath6kl *ar = file->private_data; 1691 struct ath6kl_vif *vif; 1692 char buf[32]; 1693 int len; 1694 1695 vif = ath6kl_vif_first(ar); 1696 if (!vif) 1697 return -EIO; 1698 1699 len = scnprintf(buf, sizeof(buf), "%u\n", vif->listen_intvl_t); 1700 1701 return simple_read_from_buffer(user_buf, count, ppos, buf, len); 1702 } 1703 1704 static const struct file_operations fops_listen_int = { 1705 .read = ath6kl_listen_int_read, 1706 .write = ath6kl_listen_int_write, 1707 .open = simple_open, 1708 .owner = THIS_MODULE, 1709 .llseek = default_llseek, 1710 }; 1711 1712 static ssize_t ath6kl_power_params_write(struct file *file, 1713 const char __user *user_buf, 1714 size_t count, loff_t *ppos) 1715 { 1716 struct ath6kl *ar = file->private_data; 1717 u8 buf[100]; 1718 unsigned int len = 0; 1719 char *sptr, *token; 1720 u16 idle_period, ps_poll_num, dtim, 1721 tx_wakeup, num_tx; 1722 1723 len = min(count, sizeof(buf) - 1); 1724 if (copy_from_user(buf, user_buf, len)) 1725 return -EFAULT; 1726 buf[len] = '\0'; 1727 sptr = buf; 1728 1729 token = strsep(&sptr, " "); 1730 if (!token) 1731 return -EINVAL; 1732 if (kstrtou16(token, 0, &idle_period)) 1733 return -EINVAL; 1734 1735 token = strsep(&sptr, " "); 1736 if (!token) 1737 return -EINVAL; 1738 if (kstrtou16(token, 0, &ps_poll_num)) 1739 return -EINVAL; 1740 1741 token = strsep(&sptr, " "); 1742 if (!token) 1743 return -EINVAL; 1744 if (kstrtou16(token, 0, &dtim)) 1745 return -EINVAL; 1746 1747 token = strsep(&sptr, " "); 1748 if (!token) 1749 return -EINVAL; 1750 if (kstrtou16(token, 0, &tx_wakeup)) 1751 return -EINVAL; 1752 1753 token = strsep(&sptr, " "); 1754 if (!token) 1755 return -EINVAL; 1756 if (kstrtou16(token, 0, &num_tx)) 1757 return -EINVAL; 1758 1759 ath6kl_wmi_pmparams_cmd(ar->wmi, 0, idle_period, ps_poll_num, 1760 dtim, tx_wakeup, num_tx, 0); 1761 1762 return count; 1763 } 1764 1765 static const struct file_operations fops_power_params = { 1766 .write = ath6kl_power_params_write, 1767 .open = simple_open, 1768 .owner = THIS_MODULE, 1769 .llseek = default_llseek, 1770 }; 1771 1772 void ath6kl_debug_init(struct ath6kl *ar) 1773 { 1774 skb_queue_head_init(&ar->debug.fwlog_queue); 1775 init_completion(&ar->debug.fwlog_completion); 1776 1777 /* 1778 * Actually we are lying here but don't know how to read the mask 1779 * value from the firmware. 1780 */ 1781 ar->debug.fwlog_mask = 0; 1782 } 1783 1784 /* 1785 * Initialisation needs to happen in two stages as fwlog events can come 1786 * before cfg80211 is initialised, and debugfs depends on cfg80211 1787 * initialisation. 1788 */ 1789 int ath6kl_debug_init_fs(struct ath6kl *ar) 1790 { 1791 ar->debugfs_phy = debugfs_create_dir("ath6kl", 1792 ar->wiphy->debugfsdir); 1793 if (!ar->debugfs_phy) 1794 return -ENOMEM; 1795 1796 debugfs_create_file("tgt_stats", 0400, ar->debugfs_phy, ar, 1797 &fops_tgt_stats); 1798 1799 if (ar->hif_type == ATH6KL_HIF_TYPE_SDIO) 1800 debugfs_create_file("credit_dist_stats", 0400, 1801 ar->debugfs_phy, ar, 1802 &fops_credit_dist_stats); 1803 1804 debugfs_create_file("endpoint_stats", 0600, 1805 ar->debugfs_phy, ar, &fops_endpoint_stats); 1806 1807 debugfs_create_file("fwlog", 0400, ar->debugfs_phy, ar, &fops_fwlog); 1808 1809 debugfs_create_file("fwlog_block", 0400, ar->debugfs_phy, ar, 1810 &fops_fwlog_block); 1811 1812 debugfs_create_file("fwlog_mask", 0600, ar->debugfs_phy, 1813 ar, &fops_fwlog_mask); 1814 1815 debugfs_create_file("reg_addr", 0600, ar->debugfs_phy, ar, 1816 &fops_diag_reg_read); 1817 1818 debugfs_create_file("reg_dump", 0400, ar->debugfs_phy, ar, 1819 &fops_reg_dump); 1820 1821 debugfs_create_file("lrssi_roam_threshold", 0600, 1822 ar->debugfs_phy, ar, &fops_lrssi_roam_threshold); 1823 1824 debugfs_create_file("reg_write", 0600, 1825 ar->debugfs_phy, ar, &fops_diag_reg_write); 1826 1827 debugfs_create_file("war_stats", 0400, ar->debugfs_phy, ar, 1828 &fops_war_stats); 1829 1830 debugfs_create_file("roam_table", 0400, ar->debugfs_phy, ar, 1831 &fops_roam_table); 1832 1833 debugfs_create_file("force_roam", 0200, ar->debugfs_phy, ar, 1834 &fops_force_roam); 1835 1836 debugfs_create_file("roam_mode", 0200, ar->debugfs_phy, ar, 1837 &fops_roam_mode); 1838 1839 debugfs_create_file("keepalive", 0600, ar->debugfs_phy, ar, 1840 &fops_keepalive); 1841 1842 debugfs_create_file("disconnect_timeout", 0600, 1843 ar->debugfs_phy, ar, &fops_disconnect_timeout); 1844 1845 debugfs_create_file("create_qos", 0200, ar->debugfs_phy, ar, 1846 &fops_create_qos); 1847 1848 debugfs_create_file("delete_qos", 0200, ar->debugfs_phy, ar, 1849 &fops_delete_qos); 1850 1851 debugfs_create_file("bgscan_interval", 0200, 1852 ar->debugfs_phy, ar, &fops_bgscan_int); 1853 1854 debugfs_create_file("listen_interval", 0600, 1855 ar->debugfs_phy, ar, &fops_listen_int); 1856 1857 debugfs_create_file("power_params", 0200, ar->debugfs_phy, ar, 1858 &fops_power_params); 1859 1860 return 0; 1861 } 1862 1863 void ath6kl_debug_cleanup(struct ath6kl *ar) 1864 { 1865 skb_queue_purge(&ar->debug.fwlog_queue); 1866 complete(&ar->debug.fwlog_completion); 1867 kfree(ar->debug.roam_tbl); 1868 } 1869 1870 #endif 1871