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/hex.h> 23 #include <linux/vmalloc.h> 24 #include <linux/export.h> 25 26 #include "debug.h" 27 #include "target.h" 28 29 struct ath6kl_fwlog_slot { 30 __le32 timestamp; 31 __le32 length; 32 33 /* max ATH6KL_FWLOG_PAYLOAD_SIZE bytes */ 34 u8 payload[]; 35 }; 36 37 #define ATH6KL_FWLOG_MAX_ENTRIES 20 38 39 #define ATH6KL_FWLOG_VALID_MASK 0x1ffff 40 41 void ath6kl_printk(const char *level, const char *fmt, ...) 42 { 43 struct va_format vaf; 44 va_list args; 45 46 va_start(args, fmt); 47 48 vaf.fmt = fmt; 49 vaf.va = &args; 50 51 printk("%sath6kl: %pV", level, &vaf); 52 53 va_end(args); 54 } 55 EXPORT_SYMBOL(ath6kl_printk); 56 57 void ath6kl_info(const char *fmt, ...) 58 { 59 struct va_format vaf = { 60 .fmt = fmt, 61 }; 62 va_list args; 63 64 va_start(args, fmt); 65 vaf.va = &args; 66 ath6kl_printk(KERN_INFO, "%pV", &vaf); 67 trace_ath6kl_log_info(&vaf); 68 va_end(args); 69 } 70 EXPORT_SYMBOL(ath6kl_info); 71 72 void ath6kl_err(const char *fmt, ...) 73 { 74 struct va_format vaf = { 75 .fmt = fmt, 76 }; 77 va_list args; 78 79 va_start(args, fmt); 80 vaf.va = &args; 81 ath6kl_printk(KERN_ERR, "%pV", &vaf); 82 trace_ath6kl_log_err(&vaf); 83 va_end(args); 84 } 85 EXPORT_SYMBOL(ath6kl_err); 86 87 void ath6kl_warn(const char *fmt, ...) 88 { 89 struct va_format vaf = { 90 .fmt = fmt, 91 }; 92 va_list args; 93 94 va_start(args, fmt); 95 vaf.va = &args; 96 ath6kl_printk(KERN_WARNING, "%pV", &vaf); 97 trace_ath6kl_log_warn(&vaf); 98 va_end(args); 99 } 100 EXPORT_SYMBOL(ath6kl_warn); 101 102 int ath6kl_read_tgt_stats(struct ath6kl *ar, struct ath6kl_vif *vif) 103 { 104 long left; 105 106 if (down_interruptible(&ar->sem)) 107 return -EBUSY; 108 109 set_bit(STATS_UPDATE_PEND, &vif->flags); 110 111 if (ath6kl_wmi_get_stats_cmd(ar->wmi, 0)) { 112 up(&ar->sem); 113 return -EIO; 114 } 115 116 left = wait_event_interruptible_timeout(ar->event_wq, 117 !test_bit(STATS_UPDATE_PEND, 118 &vif->flags), WMI_TIMEOUT); 119 120 up(&ar->sem); 121 122 if (left <= 0) 123 return -ETIMEDOUT; 124 125 return 0; 126 } 127 EXPORT_SYMBOL(ath6kl_read_tgt_stats); 128 129 #ifdef CONFIG_ATH6KL_DEBUG 130 131 void ath6kl_dbg(enum ATH6K_DEBUG_MASK mask, const char *fmt, ...) 132 { 133 struct va_format vaf; 134 va_list args; 135 136 va_start(args, fmt); 137 138 vaf.fmt = fmt; 139 vaf.va = &args; 140 141 if (debug_mask & mask) 142 ath6kl_printk(KERN_DEBUG, "%pV", &vaf); 143 144 trace_ath6kl_log_dbg(mask, &vaf); 145 146 va_end(args); 147 } 148 EXPORT_SYMBOL(ath6kl_dbg); 149 150 void ath6kl_dbg_dump(enum ATH6K_DEBUG_MASK mask, 151 const char *msg, const char *prefix, 152 const void *buf, size_t len) 153 { 154 if (debug_mask & mask) { 155 if (msg) 156 ath6kl_dbg(mask, "%s\n", msg); 157 158 print_hex_dump_bytes(prefix, DUMP_PREFIX_OFFSET, buf, len); 159 } 160 161 /* tracing code doesn't like null strings :/ */ 162 trace_ath6kl_log_dbg_dump(msg ? msg : "", prefix ? prefix : "", 163 buf, len); 164 } 165 EXPORT_SYMBOL(ath6kl_dbg_dump); 166 167 #define REG_OUTPUT_LEN_PER_LINE 25 168 #define REGTYPE_STR_LEN 100 169 170 struct ath6kl_diag_reg_info { 171 u32 reg_start; 172 u32 reg_end; 173 const char *reg_info; 174 }; 175 176 static const struct ath6kl_diag_reg_info diag_reg[] = { 177 { 0x20000, 0x200fc, "General DMA and Rx registers" }, 178 { 0x28000, 0x28900, "MAC PCU register & keycache" }, 179 { 0x20800, 0x20a40, "QCU" }, 180 { 0x21000, 0x212f0, "DCU" }, 181 { 0x4000, 0x42e4, "RTC" }, 182 { 0x540000, 0x540000 + (256 * 1024), "RAM" }, 183 { 0x29800, 0x2B210, "Base Band" }, 184 { 0x1C000, 0x1C748, "Analog" }, 185 }; 186 187 void ath6kl_dump_registers(struct ath6kl_device *dev, 188 struct ath6kl_irq_proc_registers *irq_proc_reg, 189 struct ath6kl_irq_enable_reg *irq_enable_reg) 190 { 191 ath6kl_dbg(ATH6KL_DBG_IRQ, ("<------- Register Table -------->\n")); 192 193 if (irq_proc_reg != NULL) { 194 ath6kl_dbg(ATH6KL_DBG_IRQ, 195 "Host Int status: 0x%x\n", 196 irq_proc_reg->host_int_status); 197 ath6kl_dbg(ATH6KL_DBG_IRQ, 198 "CPU Int status: 0x%x\n", 199 irq_proc_reg->cpu_int_status); 200 ath6kl_dbg(ATH6KL_DBG_IRQ, 201 "Error Int status: 0x%x\n", 202 irq_proc_reg->error_int_status); 203 ath6kl_dbg(ATH6KL_DBG_IRQ, 204 "Counter Int status: 0x%x\n", 205 irq_proc_reg->counter_int_status); 206 ath6kl_dbg(ATH6KL_DBG_IRQ, 207 "Mbox Frame: 0x%x\n", 208 irq_proc_reg->mbox_frame); 209 ath6kl_dbg(ATH6KL_DBG_IRQ, 210 "Rx Lookahead Valid: 0x%x\n", 211 irq_proc_reg->rx_lkahd_valid); 212 ath6kl_dbg(ATH6KL_DBG_IRQ, 213 "Rx Lookahead 0: 0x%x\n", 214 irq_proc_reg->rx_lkahd[0]); 215 ath6kl_dbg(ATH6KL_DBG_IRQ, 216 "Rx Lookahead 1: 0x%x\n", 217 irq_proc_reg->rx_lkahd[1]); 218 219 if (dev->ar->mbox_info.gmbox_addr != 0) { 220 /* 221 * If the target supports GMBOX hardware, dump some 222 * additional state. 223 */ 224 ath6kl_dbg(ATH6KL_DBG_IRQ, 225 "GMBOX Host Int status 2: 0x%x\n", 226 irq_proc_reg->host_int_status2); 227 ath6kl_dbg(ATH6KL_DBG_IRQ, 228 "GMBOX RX Avail: 0x%x\n", 229 irq_proc_reg->gmbox_rx_avail); 230 ath6kl_dbg(ATH6KL_DBG_IRQ, 231 "GMBOX lookahead alias 0: 0x%x\n", 232 irq_proc_reg->rx_gmbox_lkahd_alias[0]); 233 ath6kl_dbg(ATH6KL_DBG_IRQ, 234 "GMBOX lookahead alias 1: 0x%x\n", 235 irq_proc_reg->rx_gmbox_lkahd_alias[1]); 236 } 237 } 238 239 if (irq_enable_reg != NULL) { 240 ath6kl_dbg(ATH6KL_DBG_IRQ, 241 "Int status Enable: 0x%x\n", 242 irq_enable_reg->int_status_en); 243 ath6kl_dbg(ATH6KL_DBG_IRQ, "Counter Int status Enable: 0x%x\n", 244 irq_enable_reg->cntr_int_status_en); 245 } 246 ath6kl_dbg(ATH6KL_DBG_IRQ, "<------------------------------->\n"); 247 } 248 249 static void dump_cred_dist(struct htc_endpoint_credit_dist *ep_dist) 250 { 251 ath6kl_dbg(ATH6KL_DBG_CREDIT, 252 "--- endpoint: %d svc_id: 0x%X ---\n", 253 ep_dist->endpoint, ep_dist->svc_id); 254 ath6kl_dbg(ATH6KL_DBG_CREDIT, " dist_flags : 0x%X\n", 255 ep_dist->dist_flags); 256 ath6kl_dbg(ATH6KL_DBG_CREDIT, " cred_norm : %d\n", 257 ep_dist->cred_norm); 258 ath6kl_dbg(ATH6KL_DBG_CREDIT, " cred_min : %d\n", 259 ep_dist->cred_min); 260 ath6kl_dbg(ATH6KL_DBG_CREDIT, " credits : %d\n", 261 ep_dist->credits); 262 ath6kl_dbg(ATH6KL_DBG_CREDIT, " cred_assngd : %d\n", 263 ep_dist->cred_assngd); 264 ath6kl_dbg(ATH6KL_DBG_CREDIT, " seek_cred : %d\n", 265 ep_dist->seek_cred); 266 ath6kl_dbg(ATH6KL_DBG_CREDIT, " cred_sz : %d\n", 267 ep_dist->cred_sz); 268 ath6kl_dbg(ATH6KL_DBG_CREDIT, " cred_per_msg : %d\n", 269 ep_dist->cred_per_msg); 270 ath6kl_dbg(ATH6KL_DBG_CREDIT, " cred_to_dist : %d\n", 271 ep_dist->cred_to_dist); 272 ath6kl_dbg(ATH6KL_DBG_CREDIT, " txq_depth : %d\n", 273 get_queue_depth(&ep_dist->htc_ep->txq)); 274 ath6kl_dbg(ATH6KL_DBG_CREDIT, 275 "----------------------------------\n"); 276 } 277 278 /* FIXME: move to htc.c */ 279 void dump_cred_dist_stats(struct htc_target *target) 280 { 281 struct htc_endpoint_credit_dist *ep_list; 282 283 list_for_each_entry(ep_list, &target->cred_dist_list, list) 284 dump_cred_dist(ep_list); 285 286 ath6kl_dbg(ATH6KL_DBG_CREDIT, 287 "credit distribution total %d free %d\n", 288 target->credit_info->total_avail_credits, 289 target->credit_info->cur_free_credits); 290 } 291 292 void ath6kl_debug_war(struct ath6kl *ar, enum ath6kl_war war) 293 { 294 switch (war) { 295 case ATH6KL_WAR_INVALID_RATE: 296 ar->debug.war_stats.invalid_rate++; 297 break; 298 } 299 } 300 301 static ssize_t read_file_war_stats(struct file *file, char __user *user_buf, 302 size_t count, loff_t *ppos) 303 { 304 struct ath6kl *ar = file->private_data; 305 char *buf; 306 unsigned int len = 0, buf_len = 1500; 307 ssize_t ret_cnt; 308 309 buf = kzalloc(buf_len, GFP_KERNEL); 310 if (!buf) 311 return -ENOMEM; 312 313 len += scnprintf(buf + len, buf_len - len, "\n"); 314 len += scnprintf(buf + len, buf_len - len, "%25s\n", 315 "Workaround stats"); 316 len += scnprintf(buf + len, buf_len - len, "%25s\n\n", 317 "================="); 318 len += scnprintf(buf + len, buf_len - len, "%20s %10u\n", 319 "Invalid rates", ar->debug.war_stats.invalid_rate); 320 321 if (WARN_ON(len > buf_len)) 322 len = buf_len; 323 324 ret_cnt = simple_read_from_buffer(user_buf, count, ppos, buf, len); 325 326 kfree(buf); 327 return ret_cnt; 328 } 329 330 static const struct file_operations fops_war_stats = { 331 .read = read_file_war_stats, 332 .open = simple_open, 333 .owner = THIS_MODULE, 334 .llseek = default_llseek, 335 }; 336 337 void ath6kl_debug_fwlog_event(struct ath6kl *ar, const void *buf, size_t len) 338 { 339 struct ath6kl_fwlog_slot *slot; 340 struct sk_buff *skb; 341 size_t slot_len; 342 343 if (WARN_ON(len > ATH6KL_FWLOG_PAYLOAD_SIZE)) 344 return; 345 346 slot_len = sizeof(*slot) + ATH6KL_FWLOG_PAYLOAD_SIZE; 347 348 skb = alloc_skb(slot_len, GFP_KERNEL); 349 if (!skb) 350 return; 351 352 slot = skb_put(skb, slot_len); 353 slot->timestamp = cpu_to_le32(jiffies); 354 slot->length = cpu_to_le32(len); 355 memcpy(slot->payload, buf, len); 356 357 /* Need to pad each record to fixed length ATH6KL_FWLOG_PAYLOAD_SIZE */ 358 memset(slot->payload + len, 0, ATH6KL_FWLOG_PAYLOAD_SIZE - len); 359 360 spin_lock(&ar->debug.fwlog_queue.lock); 361 362 __skb_queue_tail(&ar->debug.fwlog_queue, skb); 363 complete(&ar->debug.fwlog_completion); 364 365 /* drop oldest entries */ 366 while (skb_queue_len(&ar->debug.fwlog_queue) > 367 ATH6KL_FWLOG_MAX_ENTRIES) { 368 skb = __skb_dequeue(&ar->debug.fwlog_queue); 369 kfree_skb(skb); 370 } 371 372 spin_unlock(&ar->debug.fwlog_queue.lock); 373 374 return; 375 } 376 377 static int ath6kl_fwlog_open(struct inode *inode, struct file *file) 378 { 379 struct ath6kl *ar = inode->i_private; 380 381 if (ar->debug.fwlog_open) 382 return -EBUSY; 383 384 ar->debug.fwlog_open = true; 385 386 file->private_data = inode->i_private; 387 return 0; 388 } 389 390 static int ath6kl_fwlog_release(struct inode *inode, struct file *file) 391 { 392 struct ath6kl *ar = inode->i_private; 393 394 ar->debug.fwlog_open = false; 395 396 return 0; 397 } 398 399 static ssize_t ath6kl_fwlog_read(struct file *file, char __user *user_buf, 400 size_t count, loff_t *ppos) 401 { 402 struct ath6kl *ar = file->private_data; 403 struct sk_buff *skb; 404 ssize_t ret_cnt; 405 size_t len = 0; 406 char *buf; 407 408 buf = vmalloc(count); 409 if (!buf) 410 return -ENOMEM; 411 412 /* read undelivered logs from firmware */ 413 ath6kl_read_fwlogs(ar); 414 415 spin_lock(&ar->debug.fwlog_queue.lock); 416 417 while ((skb = __skb_dequeue(&ar->debug.fwlog_queue))) { 418 if (skb->len > count - len) { 419 /* not enough space, put skb back and leave */ 420 __skb_queue_head(&ar->debug.fwlog_queue, skb); 421 break; 422 } 423 424 425 memcpy(buf + len, skb->data, skb->len); 426 len += skb->len; 427 428 kfree_skb(skb); 429 } 430 431 spin_unlock(&ar->debug.fwlog_queue.lock); 432 433 /* FIXME: what to do if len == 0? */ 434 435 ret_cnt = simple_read_from_buffer(user_buf, count, ppos, buf, len); 436 437 vfree(buf); 438 439 return ret_cnt; 440 } 441 442 static const struct file_operations fops_fwlog = { 443 .open = ath6kl_fwlog_open, 444 .release = ath6kl_fwlog_release, 445 .read = ath6kl_fwlog_read, 446 .owner = THIS_MODULE, 447 .llseek = default_llseek, 448 }; 449 450 static ssize_t ath6kl_fwlog_block_read(struct file *file, 451 char __user *user_buf, 452 size_t count, 453 loff_t *ppos) 454 { 455 struct ath6kl *ar = file->private_data; 456 struct sk_buff *skb; 457 ssize_t ret_cnt; 458 size_t len = 0, not_copied; 459 char *buf; 460 int ret; 461 462 buf = vmalloc(count); 463 if (!buf) 464 return -ENOMEM; 465 466 spin_lock(&ar->debug.fwlog_queue.lock); 467 468 if (skb_queue_len(&ar->debug.fwlog_queue) == 0) { 469 /* we must init under queue lock */ 470 init_completion(&ar->debug.fwlog_completion); 471 472 spin_unlock(&ar->debug.fwlog_queue.lock); 473 474 ret = wait_for_completion_interruptible( 475 &ar->debug.fwlog_completion); 476 if (ret == -ERESTARTSYS) { 477 vfree(buf); 478 return ret; 479 } 480 481 spin_lock(&ar->debug.fwlog_queue.lock); 482 } 483 484 while ((skb = __skb_dequeue(&ar->debug.fwlog_queue))) { 485 if (skb->len > count - len) { 486 /* not enough space, put skb back and leave */ 487 __skb_queue_head(&ar->debug.fwlog_queue, skb); 488 break; 489 } 490 491 492 memcpy(buf + len, skb->data, skb->len); 493 len += skb->len; 494 495 kfree_skb(skb); 496 } 497 498 spin_unlock(&ar->debug.fwlog_queue.lock); 499 500 /* FIXME: what to do if len == 0? */ 501 502 not_copied = copy_to_user(user_buf, buf, len); 503 if (not_copied != 0) { 504 ret_cnt = -EFAULT; 505 goto out; 506 } 507 508 *ppos = *ppos + len; 509 510 ret_cnt = len; 511 512 out: 513 vfree(buf); 514 515 return ret_cnt; 516 } 517 518 static const struct file_operations fops_fwlog_block = { 519 .open = ath6kl_fwlog_open, 520 .release = ath6kl_fwlog_release, 521 .read = ath6kl_fwlog_block_read, 522 .owner = THIS_MODULE, 523 .llseek = default_llseek, 524 }; 525 526 static ssize_t ath6kl_fwlog_mask_read(struct file *file, char __user *user_buf, 527 size_t count, loff_t *ppos) 528 { 529 struct ath6kl *ar = file->private_data; 530 char buf[16]; 531 int len; 532 533 len = snprintf(buf, sizeof(buf), "0x%x\n", ar->debug.fwlog_mask); 534 535 return simple_read_from_buffer(user_buf, count, ppos, buf, len); 536 } 537 538 static ssize_t ath6kl_fwlog_mask_write(struct file *file, 539 const char __user *user_buf, 540 size_t count, loff_t *ppos) 541 { 542 struct ath6kl *ar = file->private_data; 543 int ret; 544 545 ret = kstrtou32_from_user(user_buf, count, 0, &ar->debug.fwlog_mask); 546 if (ret) 547 return ret; 548 549 ret = ath6kl_wmi_config_debug_module_cmd(ar->wmi, 550 ATH6KL_FWLOG_VALID_MASK, 551 ar->debug.fwlog_mask); 552 if (ret) 553 return ret; 554 555 return count; 556 } 557 558 static const struct file_operations fops_fwlog_mask = { 559 .open = simple_open, 560 .read = ath6kl_fwlog_mask_read, 561 .write = ath6kl_fwlog_mask_write, 562 .owner = THIS_MODULE, 563 .llseek = default_llseek, 564 }; 565 566 static ssize_t read_file_tgt_stats(struct file *file, char __user *user_buf, 567 size_t count, loff_t *ppos) 568 { 569 struct ath6kl *ar = file->private_data; 570 struct ath6kl_vif *vif; 571 struct target_stats *tgt_stats; 572 char *buf; 573 unsigned int len = 0, buf_len = 1500; 574 int i; 575 ssize_t ret_cnt; 576 int rv; 577 578 vif = ath6kl_vif_first(ar); 579 if (!vif) 580 return -EIO; 581 582 buf = kzalloc(buf_len, GFP_KERNEL); 583 if (!buf) 584 return -ENOMEM; 585 586 rv = ath6kl_read_tgt_stats(ar, vif); 587 if (rv < 0) { 588 kfree(buf); 589 return rv; 590 } 591 592 tgt_stats = &vif->target_stats; 593 594 len += scnprintf(buf + len, buf_len - len, "\n"); 595 len += scnprintf(buf + len, buf_len - len, "%25s\n", 596 "Target Tx stats"); 597 len += scnprintf(buf + len, buf_len - len, "%25s\n\n", 598 "================="); 599 len += scnprintf(buf + len, buf_len - len, "%20s %10llu\n", 600 "Ucast packets", tgt_stats->tx_ucast_pkt); 601 len += scnprintf(buf + len, buf_len - len, "%20s %10llu\n", 602 "Bcast packets", tgt_stats->tx_bcast_pkt); 603 len += scnprintf(buf + len, buf_len - len, "%20s %10llu\n", 604 "Ucast byte", tgt_stats->tx_ucast_byte); 605 len += scnprintf(buf + len, buf_len - len, "%20s %10llu\n", 606 "Bcast byte", tgt_stats->tx_bcast_byte); 607 len += scnprintf(buf + len, buf_len - len, "%20s %10llu\n", 608 "Rts success cnt", tgt_stats->tx_rts_success_cnt); 609 for (i = 0; i < 4; i++) 610 len += scnprintf(buf + len, buf_len - len, 611 "%18s %d %10llu\n", "PER on ac", 612 i, tgt_stats->tx_pkt_per_ac[i]); 613 len += scnprintf(buf + len, buf_len - len, "%20s %10llu\n", 614 "Error", tgt_stats->tx_err); 615 len += scnprintf(buf + len, buf_len - len, "%20s %10llu\n", 616 "Fail count", tgt_stats->tx_fail_cnt); 617 len += scnprintf(buf + len, buf_len - len, "%20s %10llu\n", 618 "Retry count", tgt_stats->tx_retry_cnt); 619 len += scnprintf(buf + len, buf_len - len, "%20s %10llu\n", 620 "Multi retry cnt", tgt_stats->tx_mult_retry_cnt); 621 len += scnprintf(buf + len, buf_len - len, "%20s %10llu\n", 622 "Rts fail cnt", tgt_stats->tx_rts_fail_cnt); 623 len += scnprintf(buf + len, buf_len - len, "%25s %10llu\n\n", 624 "TKIP counter measure used", 625 tgt_stats->tkip_cnter_measures_invoked); 626 627 len += scnprintf(buf + len, buf_len - len, "%25s\n", 628 "Target Rx stats"); 629 len += scnprintf(buf + len, buf_len - len, "%25s\n", 630 "================="); 631 632 len += scnprintf(buf + len, buf_len - len, "%20s %10llu\n", 633 "Ucast packets", tgt_stats->rx_ucast_pkt); 634 len += scnprintf(buf + len, buf_len - len, "%20s %10d\n", 635 "Ucast Rate", tgt_stats->rx_ucast_rate); 636 len += scnprintf(buf + len, buf_len - len, "%20s %10llu\n", 637 "Bcast packets", tgt_stats->rx_bcast_pkt); 638 len += scnprintf(buf + len, buf_len - len, "%20s %10llu\n", 639 "Ucast byte", tgt_stats->rx_ucast_byte); 640 len += scnprintf(buf + len, buf_len - len, "%20s %10llu\n", 641 "Bcast byte", tgt_stats->rx_bcast_byte); 642 len += scnprintf(buf + len, buf_len - len, "%20s %10llu\n", 643 "Fragmented pkt", tgt_stats->rx_frgment_pkt); 644 len += scnprintf(buf + len, buf_len - len, "%20s %10llu\n", 645 "Error", tgt_stats->rx_err); 646 len += scnprintf(buf + len, buf_len - len, "%20s %10llu\n", 647 "CRC Err", tgt_stats->rx_crc_err); 648 len += scnprintf(buf + len, buf_len - len, "%20s %10llu\n", 649 "Key cache miss", tgt_stats->rx_key_cache_miss); 650 len += scnprintf(buf + len, buf_len - len, "%20s %10llu\n", 651 "Decrypt Err", tgt_stats->rx_decrypt_err); 652 len += scnprintf(buf + len, buf_len - len, "%20s %10llu\n", 653 "Duplicate frame", tgt_stats->rx_dupl_frame); 654 len += scnprintf(buf + len, buf_len - len, "%20s %10llu\n", 655 "Tkip Mic failure", tgt_stats->tkip_local_mic_fail); 656 len += scnprintf(buf + len, buf_len - len, "%20s %10llu\n", 657 "TKIP format err", tgt_stats->tkip_fmt_err); 658 len += scnprintf(buf + len, buf_len - len, "%20s %10llu\n", 659 "CCMP format Err", tgt_stats->ccmp_fmt_err); 660 len += scnprintf(buf + len, buf_len - len, "%20s %10llu\n\n", 661 "CCMP Replay Err", tgt_stats->ccmp_replays); 662 663 len += scnprintf(buf + len, buf_len - len, "%25s\n", 664 "Misc Target stats"); 665 len += scnprintf(buf + len, buf_len - len, "%25s\n", 666 "================="); 667 len += scnprintf(buf + len, buf_len - len, "%20s %10llu\n", 668 "Beacon Miss count", tgt_stats->cs_bmiss_cnt); 669 len += scnprintf(buf + len, buf_len - len, "%20s %10llu\n", 670 "Num Connects", tgt_stats->cs_connect_cnt); 671 len += scnprintf(buf + len, buf_len - len, "%20s %10llu\n", 672 "Num disconnects", tgt_stats->cs_discon_cnt); 673 len += scnprintf(buf + len, buf_len - len, "%20s %10d\n", 674 "Beacon avg rssi", tgt_stats->cs_ave_beacon_rssi); 675 len += scnprintf(buf + len, buf_len - len, "%20s %10d\n", 676 "ARP pkt received", tgt_stats->arp_received); 677 len += scnprintf(buf + len, buf_len - len, "%20s %10d\n", 678 "ARP pkt matched", tgt_stats->arp_matched); 679 len += scnprintf(buf + len, buf_len - len, "%20s %10d\n", 680 "ARP pkt replied", tgt_stats->arp_replied); 681 682 if (len > buf_len) 683 len = buf_len; 684 685 ret_cnt = simple_read_from_buffer(user_buf, count, ppos, buf, len); 686 687 kfree(buf); 688 return ret_cnt; 689 } 690 691 static const struct file_operations fops_tgt_stats = { 692 .read = read_file_tgt_stats, 693 .open = simple_open, 694 .owner = THIS_MODULE, 695 .llseek = default_llseek, 696 }; 697 698 #define print_credit_info(fmt_str, ep_list_field) \ 699 (len += scnprintf(buf + len, buf_len - len, fmt_str, \ 700 ep_list->ep_list_field)) 701 #define CREDIT_INFO_DISPLAY_STRING_LEN 200 702 #define CREDIT_INFO_LEN 128 703 704 static ssize_t read_file_credit_dist_stats(struct file *file, 705 char __user *user_buf, 706 size_t count, loff_t *ppos) 707 { 708 struct ath6kl *ar = file->private_data; 709 struct htc_target *target = ar->htc_target; 710 struct htc_endpoint_credit_dist *ep_list; 711 char *buf; 712 unsigned int buf_len, len = 0; 713 ssize_t ret_cnt; 714 715 buf_len = CREDIT_INFO_DISPLAY_STRING_LEN + 716 get_queue_depth(&target->cred_dist_list) * CREDIT_INFO_LEN; 717 buf = kzalloc(buf_len, GFP_KERNEL); 718 if (!buf) 719 return -ENOMEM; 720 721 len += scnprintf(buf + len, buf_len - len, "%25s%5d\n", 722 "Total Avail Credits: ", 723 target->credit_info->total_avail_credits); 724 len += scnprintf(buf + len, buf_len - len, "%25s%5d\n", 725 "Free credits :", 726 target->credit_info->cur_free_credits); 727 728 len += scnprintf(buf + len, buf_len - len, 729 " Epid Flags Cred_norm Cred_min Credits Cred_assngd" 730 " Seek_cred Cred_sz Cred_per_msg Cred_to_dist" 731 " qdepth\n"); 732 733 list_for_each_entry(ep_list, &target->cred_dist_list, list) { 734 print_credit_info(" %2d", endpoint); 735 print_credit_info("%10x", dist_flags); 736 print_credit_info("%8d", cred_norm); 737 print_credit_info("%9d", cred_min); 738 print_credit_info("%9d", credits); 739 print_credit_info("%10d", cred_assngd); 740 print_credit_info("%13d", seek_cred); 741 print_credit_info("%12d", cred_sz); 742 print_credit_info("%9d", cred_per_msg); 743 print_credit_info("%14d", cred_to_dist); 744 len += scnprintf(buf + len, buf_len - len, "%12d\n", 745 get_queue_depth(&ep_list->htc_ep->txq)); 746 } 747 748 if (len > buf_len) 749 len = buf_len; 750 751 ret_cnt = simple_read_from_buffer(user_buf, count, ppos, buf, len); 752 kfree(buf); 753 return ret_cnt; 754 } 755 756 static const struct file_operations fops_credit_dist_stats = { 757 .read = read_file_credit_dist_stats, 758 .open = simple_open, 759 .owner = THIS_MODULE, 760 .llseek = default_llseek, 761 }; 762 763 static unsigned int print_endpoint_stat(struct htc_target *target, char *buf, 764 unsigned int buf_len, unsigned int len, 765 int offset, const char *name) 766 { 767 int i; 768 struct htc_endpoint_stats *ep_st; 769 u32 *counter; 770 771 len += scnprintf(buf + len, buf_len - len, "%s:", name); 772 for (i = 0; i < ENDPOINT_MAX; i++) { 773 ep_st = &target->endpoint[i].ep_st; 774 counter = ((u32 *) ep_st) + (offset / 4); 775 len += scnprintf(buf + len, buf_len - len, " %u", *counter); 776 } 777 len += scnprintf(buf + len, buf_len - len, "\n"); 778 779 return len; 780 } 781 782 static ssize_t ath6kl_endpoint_stats_read(struct file *file, 783 char __user *user_buf, 784 size_t count, loff_t *ppos) 785 { 786 struct ath6kl *ar = file->private_data; 787 struct htc_target *target = ar->htc_target; 788 char *buf; 789 unsigned int buf_len, len = 0; 790 ssize_t ret_cnt; 791 792 buf_len = sizeof(struct htc_endpoint_stats) / sizeof(u32) * 793 (25 + ENDPOINT_MAX * 11); 794 buf = kmalloc(buf_len, GFP_KERNEL); 795 if (!buf) 796 return -ENOMEM; 797 798 #define EPSTAT(name) \ 799 do { \ 800 len = print_endpoint_stat(target, buf, buf_len, len, \ 801 offsetof(struct htc_endpoint_stats, \ 802 name), \ 803 #name); \ 804 } while (0) 805 806 EPSTAT(cred_low_indicate); 807 EPSTAT(tx_issued); 808 EPSTAT(tx_pkt_bundled); 809 EPSTAT(tx_bundles); 810 EPSTAT(tx_dropped); 811 EPSTAT(tx_cred_rpt); 812 EPSTAT(cred_rpt_from_rx); 813 EPSTAT(cred_rpt_from_other); 814 EPSTAT(cred_rpt_ep0); 815 EPSTAT(cred_from_rx); 816 EPSTAT(cred_from_other); 817 EPSTAT(cred_from_ep0); 818 EPSTAT(cred_cosumd); 819 EPSTAT(cred_retnd); 820 EPSTAT(rx_pkts); 821 EPSTAT(rx_lkahds); 822 EPSTAT(rx_bundl); 823 EPSTAT(rx_bundle_lkahd); 824 EPSTAT(rx_bundle_from_hdr); 825 EPSTAT(rx_alloc_thresh_hit); 826 EPSTAT(rxalloc_thresh_byte); 827 #undef EPSTAT 828 829 if (len > buf_len) 830 len = buf_len; 831 832 ret_cnt = simple_read_from_buffer(user_buf, count, ppos, buf, len); 833 kfree(buf); 834 return ret_cnt; 835 } 836 837 static ssize_t ath6kl_endpoint_stats_write(struct file *file, 838 const char __user *user_buf, 839 size_t count, loff_t *ppos) 840 { 841 struct ath6kl *ar = file->private_data; 842 struct htc_target *target = ar->htc_target; 843 int ret, i; 844 u32 val; 845 struct htc_endpoint_stats *ep_st; 846 847 ret = kstrtou32_from_user(user_buf, count, 0, &val); 848 if (ret) 849 return ret; 850 if (val == 0) { 851 for (i = 0; i < ENDPOINT_MAX; i++) { 852 ep_st = &target->endpoint[i].ep_st; 853 memset(ep_st, 0, sizeof(*ep_st)); 854 } 855 } 856 857 return count; 858 } 859 860 static const struct file_operations fops_endpoint_stats = { 861 .open = simple_open, 862 .read = ath6kl_endpoint_stats_read, 863 .write = ath6kl_endpoint_stats_write, 864 .owner = THIS_MODULE, 865 .llseek = default_llseek, 866 }; 867 868 static unsigned long ath6kl_get_num_reg(void) 869 { 870 int i; 871 unsigned long n_reg = 0; 872 873 for (i = 0; i < ARRAY_SIZE(diag_reg); i++) 874 n_reg = n_reg + 875 (diag_reg[i].reg_end - diag_reg[i].reg_start) / 4 + 1; 876 877 return n_reg; 878 } 879 880 static bool ath6kl_dbg_is_diag_reg_valid(u32 reg_addr) 881 { 882 int i; 883 884 for (i = 0; i < ARRAY_SIZE(diag_reg); i++) { 885 if (reg_addr >= diag_reg[i].reg_start && 886 reg_addr <= diag_reg[i].reg_end) 887 return true; 888 } 889 890 return false; 891 } 892 893 static ssize_t ath6kl_regread_read(struct file *file, char __user *user_buf, 894 size_t count, loff_t *ppos) 895 { 896 struct ath6kl *ar = file->private_data; 897 u8 buf[50]; 898 unsigned int len = 0; 899 900 if (ar->debug.dbgfs_diag_reg) 901 len += scnprintf(buf + len, sizeof(buf) - len, "0x%x\n", 902 ar->debug.dbgfs_diag_reg); 903 else 904 len += scnprintf(buf + len, sizeof(buf) - len, 905 "All diag registers\n"); 906 907 return simple_read_from_buffer(user_buf, count, ppos, buf, len); 908 } 909 910 static ssize_t ath6kl_regread_write(struct file *file, 911 const char __user *user_buf, 912 size_t count, loff_t *ppos) 913 { 914 struct ath6kl *ar = file->private_data; 915 unsigned long reg_addr; 916 917 if (kstrtoul_from_user(user_buf, count, 0, ®_addr)) 918 return -EINVAL; 919 920 if ((reg_addr % 4) != 0) 921 return -EINVAL; 922 923 if (reg_addr && !ath6kl_dbg_is_diag_reg_valid(reg_addr)) 924 return -EINVAL; 925 926 ar->debug.dbgfs_diag_reg = reg_addr; 927 928 return count; 929 } 930 931 static const struct file_operations fops_diag_reg_read = { 932 .read = ath6kl_regread_read, 933 .write = ath6kl_regread_write, 934 .open = simple_open, 935 .owner = THIS_MODULE, 936 .llseek = default_llseek, 937 }; 938 939 static int ath6kl_regdump_open(struct inode *inode, struct file *file) 940 { 941 struct ath6kl *ar = inode->i_private; 942 u8 *buf; 943 unsigned long int reg_len; 944 unsigned int len = 0, n_reg; 945 u32 addr; 946 __le32 reg_val; 947 int i, status; 948 949 /* Dump all the registers if no register is specified */ 950 if (!ar->debug.dbgfs_diag_reg) 951 n_reg = ath6kl_get_num_reg(); 952 else 953 n_reg = 1; 954 955 reg_len = n_reg * REG_OUTPUT_LEN_PER_LINE; 956 if (n_reg > 1) 957 reg_len += REGTYPE_STR_LEN; 958 959 buf = vmalloc(reg_len); 960 if (!buf) 961 return -ENOMEM; 962 963 if (n_reg == 1) { 964 addr = ar->debug.dbgfs_diag_reg; 965 966 status = ath6kl_diag_read32(ar, 967 TARG_VTOP(ar->target_type, addr), 968 (u32 *)®_val); 969 if (status) 970 goto fail_reg_read; 971 972 len += scnprintf(buf + len, reg_len - len, 973 "0x%06x 0x%08x\n", addr, le32_to_cpu(reg_val)); 974 goto done; 975 } 976 977 for (i = 0; i < ARRAY_SIZE(diag_reg); i++) { 978 len += scnprintf(buf + len, reg_len - len, 979 "%s\n", diag_reg[i].reg_info); 980 for (addr = diag_reg[i].reg_start; 981 addr <= diag_reg[i].reg_end; addr += 4) { 982 status = ath6kl_diag_read32(ar, 983 TARG_VTOP(ar->target_type, addr), 984 (u32 *)®_val); 985 if (status) 986 goto fail_reg_read; 987 988 len += scnprintf(buf + len, reg_len - len, 989 "0x%06x 0x%08x\n", 990 addr, le32_to_cpu(reg_val)); 991 } 992 } 993 994 done: 995 file->private_data = buf; 996 return 0; 997 998 fail_reg_read: 999 ath6kl_warn("Unable to read memory:%u\n", addr); 1000 vfree(buf); 1001 return -EIO; 1002 } 1003 1004 static ssize_t ath6kl_regdump_read(struct file *file, char __user *user_buf, 1005 size_t count, loff_t *ppos) 1006 { 1007 u8 *buf = file->private_data; 1008 return simple_read_from_buffer(user_buf, count, ppos, buf, strlen(buf)); 1009 } 1010 1011 static int ath6kl_regdump_release(struct inode *inode, struct file *file) 1012 { 1013 vfree(file->private_data); 1014 return 0; 1015 } 1016 1017 static const struct file_operations fops_reg_dump = { 1018 .open = ath6kl_regdump_open, 1019 .read = ath6kl_regdump_read, 1020 .release = ath6kl_regdump_release, 1021 .owner = THIS_MODULE, 1022 .llseek = default_llseek, 1023 }; 1024 1025 static ssize_t ath6kl_lrssi_roam_write(struct file *file, 1026 const char __user *user_buf, 1027 size_t count, loff_t *ppos) 1028 { 1029 struct ath6kl *ar = file->private_data; 1030 unsigned long lrssi_roam_threshold; 1031 int ret; 1032 1033 if (kstrtoul_from_user(user_buf, count, 0, &lrssi_roam_threshold)) 1034 return -EINVAL; 1035 1036 ar->lrssi_roam_threshold = lrssi_roam_threshold; 1037 1038 ret = ath6kl_wmi_set_roam_lrssi_cmd(ar->wmi, ar->lrssi_roam_threshold); 1039 1040 if (ret) 1041 return ret; 1042 return count; 1043 } 1044 1045 static ssize_t ath6kl_lrssi_roam_read(struct file *file, 1046 char __user *user_buf, 1047 size_t count, loff_t *ppos) 1048 { 1049 struct ath6kl *ar = file->private_data; 1050 char buf[32]; 1051 unsigned int len; 1052 1053 len = snprintf(buf, sizeof(buf), "%u\n", ar->lrssi_roam_threshold); 1054 1055 return simple_read_from_buffer(user_buf, count, ppos, buf, len); 1056 } 1057 1058 static const struct file_operations fops_lrssi_roam_threshold = { 1059 .read = ath6kl_lrssi_roam_read, 1060 .write = ath6kl_lrssi_roam_write, 1061 .open = simple_open, 1062 .owner = THIS_MODULE, 1063 .llseek = default_llseek, 1064 }; 1065 1066 static ssize_t ath6kl_regwrite_read(struct file *file, 1067 char __user *user_buf, 1068 size_t count, loff_t *ppos) 1069 { 1070 struct ath6kl *ar = file->private_data; 1071 u8 buf[32]; 1072 unsigned int len = 0; 1073 1074 len = scnprintf(buf, sizeof(buf), "Addr: 0x%x Val: 0x%x\n", 1075 ar->debug.diag_reg_addr_wr, ar->debug.diag_reg_val_wr); 1076 1077 return simple_read_from_buffer(user_buf, count, ppos, buf, len); 1078 } 1079 1080 static ssize_t ath6kl_regwrite_write(struct file *file, 1081 const char __user *user_buf, 1082 size_t count, loff_t *ppos) 1083 { 1084 struct ath6kl *ar = file->private_data; 1085 char buf[32]; 1086 char *sptr, *token; 1087 unsigned int len = 0; 1088 u32 reg_addr, reg_val; 1089 1090 len = min(count, sizeof(buf) - 1); 1091 if (copy_from_user(buf, user_buf, len)) 1092 return -EFAULT; 1093 1094 buf[len] = '\0'; 1095 sptr = buf; 1096 1097 token = strsep(&sptr, "="); 1098 if (!token) 1099 return -EINVAL; 1100 1101 if (kstrtou32(token, 0, ®_addr)) 1102 return -EINVAL; 1103 1104 if (!ath6kl_dbg_is_diag_reg_valid(reg_addr)) 1105 return -EINVAL; 1106 1107 if (kstrtou32(sptr, 0, ®_val)) 1108 return -EINVAL; 1109 1110 ar->debug.diag_reg_addr_wr = reg_addr; 1111 ar->debug.diag_reg_val_wr = reg_val; 1112 1113 if (ath6kl_diag_write32(ar, ar->debug.diag_reg_addr_wr, 1114 cpu_to_le32(ar->debug.diag_reg_val_wr))) 1115 return -EIO; 1116 1117 return count; 1118 } 1119 1120 static const struct file_operations fops_diag_reg_write = { 1121 .read = ath6kl_regwrite_read, 1122 .write = ath6kl_regwrite_write, 1123 .open = simple_open, 1124 .owner = THIS_MODULE, 1125 .llseek = default_llseek, 1126 }; 1127 1128 int ath6kl_debug_roam_tbl_event(struct ath6kl *ar, const void *buf, 1129 size_t len) 1130 { 1131 const struct wmi_target_roam_tbl *tbl; 1132 u16 num_entries; 1133 1134 if (len < sizeof(*tbl)) 1135 return -EINVAL; 1136 1137 tbl = (const struct wmi_target_roam_tbl *) buf; 1138 num_entries = le16_to_cpu(tbl->num_entries); 1139 if (struct_size(tbl, info, num_entries) > len) 1140 return -EINVAL; 1141 1142 if (ar->debug.roam_tbl == NULL || 1143 ar->debug.roam_tbl_len < (unsigned int) len) { 1144 kfree(ar->debug.roam_tbl); 1145 ar->debug.roam_tbl = kmalloc(len, GFP_ATOMIC); 1146 if (ar->debug.roam_tbl == NULL) 1147 return -ENOMEM; 1148 } 1149 1150 memcpy(ar->debug.roam_tbl, buf, len); 1151 ar->debug.roam_tbl_len = len; 1152 1153 if (test_bit(ROAM_TBL_PEND, &ar->flag)) { 1154 clear_bit(ROAM_TBL_PEND, &ar->flag); 1155 wake_up(&ar->event_wq); 1156 } 1157 1158 return 0; 1159 } 1160 1161 static ssize_t ath6kl_roam_table_read(struct file *file, char __user *user_buf, 1162 size_t count, loff_t *ppos) 1163 { 1164 struct ath6kl *ar = file->private_data; 1165 int ret; 1166 long left; 1167 struct wmi_target_roam_tbl *tbl; 1168 u16 num_entries, i; 1169 char *buf; 1170 unsigned int len, buf_len; 1171 ssize_t ret_cnt; 1172 1173 if (down_interruptible(&ar->sem)) 1174 return -EBUSY; 1175 1176 set_bit(ROAM_TBL_PEND, &ar->flag); 1177 1178 ret = ath6kl_wmi_get_roam_tbl_cmd(ar->wmi); 1179 if (ret) { 1180 up(&ar->sem); 1181 return ret; 1182 } 1183 1184 left = wait_event_interruptible_timeout( 1185 ar->event_wq, !test_bit(ROAM_TBL_PEND, &ar->flag), WMI_TIMEOUT); 1186 up(&ar->sem); 1187 1188 if (left <= 0) 1189 return -ETIMEDOUT; 1190 1191 if (ar->debug.roam_tbl == NULL) 1192 return -ENOMEM; 1193 1194 tbl = (struct wmi_target_roam_tbl *) ar->debug.roam_tbl; 1195 num_entries = le16_to_cpu(tbl->num_entries); 1196 1197 buf_len = 100 + num_entries * 100; 1198 buf = kzalloc(buf_len, GFP_KERNEL); 1199 if (buf == NULL) 1200 return -ENOMEM; 1201 len = 0; 1202 len += scnprintf(buf + len, buf_len - len, 1203 "roam_mode=%u\n\n" 1204 "# roam_util bssid rssi rssidt last_rssi util bias\n", 1205 le16_to_cpu(tbl->roam_mode)); 1206 1207 for (i = 0; i < num_entries; i++) { 1208 struct wmi_bss_roam_info *info = &tbl->info[i]; 1209 len += scnprintf(buf + len, buf_len - len, 1210 "%d %pM %d %d %d %d %d\n", 1211 a_sle32_to_cpu(info->roam_util), info->bssid, 1212 info->rssi, info->rssidt, info->last_rssi, 1213 info->util, info->bias); 1214 } 1215 1216 if (len > buf_len) 1217 len = buf_len; 1218 1219 ret_cnt = simple_read_from_buffer(user_buf, count, ppos, buf, len); 1220 1221 kfree(buf); 1222 return ret_cnt; 1223 } 1224 1225 static const struct file_operations fops_roam_table = { 1226 .read = ath6kl_roam_table_read, 1227 .open = simple_open, 1228 .owner = THIS_MODULE, 1229 .llseek = default_llseek, 1230 }; 1231 1232 static ssize_t ath6kl_force_roam_write(struct file *file, 1233 const char __user *user_buf, 1234 size_t count, loff_t *ppos) 1235 { 1236 struct ath6kl *ar = file->private_data; 1237 int ret; 1238 char buf[20]; 1239 size_t len; 1240 u8 bssid[ETH_ALEN]; 1241 1242 len = min(count, sizeof(buf) - 1); 1243 if (copy_from_user(buf, user_buf, len)) 1244 return -EFAULT; 1245 buf[len] = '\0'; 1246 1247 if (!mac_pton(buf, bssid)) 1248 return -EINVAL; 1249 1250 ret = ath6kl_wmi_force_roam_cmd(ar->wmi, bssid); 1251 if (ret) 1252 return ret; 1253 1254 return count; 1255 } 1256 1257 static const struct file_operations fops_force_roam = { 1258 .write = ath6kl_force_roam_write, 1259 .open = simple_open, 1260 .owner = THIS_MODULE, 1261 .llseek = default_llseek, 1262 }; 1263 1264 static ssize_t ath6kl_roam_mode_write(struct file *file, 1265 const char __user *user_buf, 1266 size_t count, loff_t *ppos) 1267 { 1268 struct ath6kl *ar = file->private_data; 1269 int ret; 1270 char buf[20]; 1271 size_t len; 1272 enum wmi_roam_mode mode; 1273 1274 len = min(count, sizeof(buf) - 1); 1275 if (copy_from_user(buf, user_buf, len)) 1276 return -EFAULT; 1277 buf[len] = '\0'; 1278 if (len > 0 && buf[len - 1] == '\n') 1279 buf[len - 1] = '\0'; 1280 1281 if (strcasecmp(buf, "default") == 0) 1282 mode = WMI_DEFAULT_ROAM_MODE; 1283 else if (strcasecmp(buf, "bssbias") == 0) 1284 mode = WMI_HOST_BIAS_ROAM_MODE; 1285 else if (strcasecmp(buf, "lock") == 0) 1286 mode = WMI_LOCK_BSS_MODE; 1287 else 1288 return -EINVAL; 1289 1290 ret = ath6kl_wmi_set_roam_mode_cmd(ar->wmi, mode); 1291 if (ret) 1292 return ret; 1293 1294 return count; 1295 } 1296 1297 static const struct file_operations fops_roam_mode = { 1298 .write = ath6kl_roam_mode_write, 1299 .open = simple_open, 1300 .owner = THIS_MODULE, 1301 .llseek = default_llseek, 1302 }; 1303 1304 void ath6kl_debug_set_keepalive(struct ath6kl *ar, u8 keepalive) 1305 { 1306 ar->debug.keepalive = keepalive; 1307 } 1308 1309 static ssize_t ath6kl_keepalive_read(struct file *file, char __user *user_buf, 1310 size_t count, loff_t *ppos) 1311 { 1312 struct ath6kl *ar = file->private_data; 1313 char buf[16]; 1314 int len; 1315 1316 len = snprintf(buf, sizeof(buf), "%u\n", ar->debug.keepalive); 1317 1318 return simple_read_from_buffer(user_buf, count, ppos, buf, len); 1319 } 1320 1321 static ssize_t ath6kl_keepalive_write(struct file *file, 1322 const char __user *user_buf, 1323 size_t count, loff_t *ppos) 1324 { 1325 struct ath6kl *ar = file->private_data; 1326 int ret; 1327 u8 val; 1328 1329 ret = kstrtou8_from_user(user_buf, count, 0, &val); 1330 if (ret) 1331 return ret; 1332 1333 ret = ath6kl_wmi_set_keepalive_cmd(ar->wmi, 0, val); 1334 if (ret) 1335 return ret; 1336 1337 return count; 1338 } 1339 1340 static const struct file_operations fops_keepalive = { 1341 .open = simple_open, 1342 .read = ath6kl_keepalive_read, 1343 .write = ath6kl_keepalive_write, 1344 .owner = THIS_MODULE, 1345 .llseek = default_llseek, 1346 }; 1347 1348 void ath6kl_debug_set_disconnect_timeout(struct ath6kl *ar, u8 timeout) 1349 { 1350 ar->debug.disc_timeout = timeout; 1351 } 1352 1353 static ssize_t ath6kl_disconnect_timeout_read(struct file *file, 1354 char __user *user_buf, 1355 size_t count, loff_t *ppos) 1356 { 1357 struct ath6kl *ar = file->private_data; 1358 char buf[16]; 1359 int len; 1360 1361 len = snprintf(buf, sizeof(buf), "%u\n", ar->debug.disc_timeout); 1362 1363 return simple_read_from_buffer(user_buf, count, ppos, buf, len); 1364 } 1365 1366 static ssize_t ath6kl_disconnect_timeout_write(struct file *file, 1367 const char __user *user_buf, 1368 size_t count, loff_t *ppos) 1369 { 1370 struct ath6kl *ar = file->private_data; 1371 int ret; 1372 u8 val; 1373 1374 ret = kstrtou8_from_user(user_buf, count, 0, &val); 1375 if (ret) 1376 return ret; 1377 1378 ret = ath6kl_wmi_disctimeout_cmd(ar->wmi, 0, val); 1379 if (ret) 1380 return ret; 1381 1382 return count; 1383 } 1384 1385 static const struct file_operations fops_disconnect_timeout = { 1386 .open = simple_open, 1387 .read = ath6kl_disconnect_timeout_read, 1388 .write = ath6kl_disconnect_timeout_write, 1389 .owner = THIS_MODULE, 1390 .llseek = default_llseek, 1391 }; 1392 1393 static ssize_t ath6kl_create_qos_write(struct file *file, 1394 const char __user *user_buf, 1395 size_t count, loff_t *ppos) 1396 { 1397 struct ath6kl *ar = file->private_data; 1398 struct ath6kl_vif *vif; 1399 char buf[200]; 1400 ssize_t len; 1401 char *sptr, *token; 1402 struct wmi_create_pstream_cmd pstream; 1403 u32 val32; 1404 u16 val16; 1405 1406 vif = ath6kl_vif_first(ar); 1407 if (!vif) 1408 return -EIO; 1409 1410 len = min(count, sizeof(buf) - 1); 1411 if (copy_from_user(buf, user_buf, len)) 1412 return -EFAULT; 1413 buf[len] = '\0'; 1414 sptr = buf; 1415 1416 token = strsep(&sptr, " "); 1417 if (!token) 1418 return -EINVAL; 1419 if (kstrtou8(token, 0, &pstream.user_pri)) 1420 return -EINVAL; 1421 1422 token = strsep(&sptr, " "); 1423 if (!token) 1424 return -EINVAL; 1425 if (kstrtou8(token, 0, &pstream.traffic_direc)) 1426 return -EINVAL; 1427 1428 token = strsep(&sptr, " "); 1429 if (!token) 1430 return -EINVAL; 1431 if (kstrtou8(token, 0, &pstream.traffic_class)) 1432 return -EINVAL; 1433 1434 token = strsep(&sptr, " "); 1435 if (!token) 1436 return -EINVAL; 1437 if (kstrtou8(token, 0, &pstream.traffic_type)) 1438 return -EINVAL; 1439 1440 token = strsep(&sptr, " "); 1441 if (!token) 1442 return -EINVAL; 1443 if (kstrtou8(token, 0, &pstream.voice_psc_cap)) 1444 return -EINVAL; 1445 1446 token = strsep(&sptr, " "); 1447 if (!token) 1448 return -EINVAL; 1449 if (kstrtou32(token, 0, &val32)) 1450 return -EINVAL; 1451 pstream.min_service_int = cpu_to_le32(val32); 1452 1453 token = strsep(&sptr, " "); 1454 if (!token) 1455 return -EINVAL; 1456 if (kstrtou32(token, 0, &val32)) 1457 return -EINVAL; 1458 pstream.max_service_int = cpu_to_le32(val32); 1459 1460 token = strsep(&sptr, " "); 1461 if (!token) 1462 return -EINVAL; 1463 if (kstrtou32(token, 0, &val32)) 1464 return -EINVAL; 1465 pstream.inactivity_int = cpu_to_le32(val32); 1466 1467 token = strsep(&sptr, " "); 1468 if (!token) 1469 return -EINVAL; 1470 if (kstrtou32(token, 0, &val32)) 1471 return -EINVAL; 1472 pstream.suspension_int = cpu_to_le32(val32); 1473 1474 token = strsep(&sptr, " "); 1475 if (!token) 1476 return -EINVAL; 1477 if (kstrtou32(token, 0, &val32)) 1478 return -EINVAL; 1479 pstream.service_start_time = cpu_to_le32(val32); 1480 1481 token = strsep(&sptr, " "); 1482 if (!token) 1483 return -EINVAL; 1484 if (kstrtou8(token, 0, &pstream.tsid)) 1485 return -EINVAL; 1486 1487 token = strsep(&sptr, " "); 1488 if (!token) 1489 return -EINVAL; 1490 if (kstrtou16(token, 0, &val16)) 1491 return -EINVAL; 1492 pstream.nominal_msdu = cpu_to_le16(val16); 1493 1494 token = strsep(&sptr, " "); 1495 if (!token) 1496 return -EINVAL; 1497 if (kstrtou16(token, 0, &val16)) 1498 return -EINVAL; 1499 pstream.max_msdu = cpu_to_le16(val16); 1500 1501 token = strsep(&sptr, " "); 1502 if (!token) 1503 return -EINVAL; 1504 if (kstrtou32(token, 0, &val32)) 1505 return -EINVAL; 1506 pstream.min_data_rate = cpu_to_le32(val32); 1507 1508 token = strsep(&sptr, " "); 1509 if (!token) 1510 return -EINVAL; 1511 if (kstrtou32(token, 0, &val32)) 1512 return -EINVAL; 1513 pstream.mean_data_rate = cpu_to_le32(val32); 1514 1515 token = strsep(&sptr, " "); 1516 if (!token) 1517 return -EINVAL; 1518 if (kstrtou32(token, 0, &val32)) 1519 return -EINVAL; 1520 pstream.peak_data_rate = cpu_to_le32(val32); 1521 1522 token = strsep(&sptr, " "); 1523 if (!token) 1524 return -EINVAL; 1525 if (kstrtou32(token, 0, &val32)) 1526 return -EINVAL; 1527 pstream.max_burst_size = cpu_to_le32(val32); 1528 1529 token = strsep(&sptr, " "); 1530 if (!token) 1531 return -EINVAL; 1532 if (kstrtou32(token, 0, &val32)) 1533 return -EINVAL; 1534 pstream.delay_bound = cpu_to_le32(val32); 1535 1536 token = strsep(&sptr, " "); 1537 if (!token) 1538 return -EINVAL; 1539 if (kstrtou32(token, 0, &val32)) 1540 return -EINVAL; 1541 pstream.min_phy_rate = cpu_to_le32(val32); 1542 1543 token = strsep(&sptr, " "); 1544 if (!token) 1545 return -EINVAL; 1546 if (kstrtou32(token, 0, &val32)) 1547 return -EINVAL; 1548 pstream.sba = cpu_to_le32(val32); 1549 1550 token = strsep(&sptr, " "); 1551 if (!token) 1552 return -EINVAL; 1553 if (kstrtou32(token, 0, &val32)) 1554 return -EINVAL; 1555 pstream.medium_time = cpu_to_le32(val32); 1556 1557 pstream.nominal_phy = le32_to_cpu(pstream.min_phy_rate) / 1000000; 1558 1559 ath6kl_wmi_create_pstream_cmd(ar->wmi, vif->fw_vif_idx, &pstream); 1560 1561 return count; 1562 } 1563 1564 static const struct file_operations fops_create_qos = { 1565 .write = ath6kl_create_qos_write, 1566 .open = simple_open, 1567 .owner = THIS_MODULE, 1568 .llseek = default_llseek, 1569 }; 1570 1571 static ssize_t ath6kl_delete_qos_write(struct file *file, 1572 const char __user *user_buf, 1573 size_t count, loff_t *ppos) 1574 { 1575 struct ath6kl *ar = file->private_data; 1576 struct ath6kl_vif *vif; 1577 char buf[100]; 1578 ssize_t len; 1579 char *sptr, *token; 1580 u8 traffic_class; 1581 u8 tsid; 1582 1583 vif = ath6kl_vif_first(ar); 1584 if (!vif) 1585 return -EIO; 1586 1587 len = min(count, sizeof(buf) - 1); 1588 if (copy_from_user(buf, user_buf, len)) 1589 return -EFAULT; 1590 buf[len] = '\0'; 1591 sptr = buf; 1592 1593 token = strsep(&sptr, " "); 1594 if (!token) 1595 return -EINVAL; 1596 if (kstrtou8(token, 0, &traffic_class)) 1597 return -EINVAL; 1598 1599 token = strsep(&sptr, " "); 1600 if (!token) 1601 return -EINVAL; 1602 if (kstrtou8(token, 0, &tsid)) 1603 return -EINVAL; 1604 1605 ath6kl_wmi_delete_pstream_cmd(ar->wmi, vif->fw_vif_idx, 1606 traffic_class, tsid); 1607 1608 return count; 1609 } 1610 1611 static const struct file_operations fops_delete_qos = { 1612 .write = ath6kl_delete_qos_write, 1613 .open = simple_open, 1614 .owner = THIS_MODULE, 1615 .llseek = default_llseek, 1616 }; 1617 1618 static ssize_t ath6kl_bgscan_int_write(struct file *file, 1619 const char __user *user_buf, 1620 size_t count, loff_t *ppos) 1621 { 1622 struct ath6kl *ar = file->private_data; 1623 struct ath6kl_vif *vif; 1624 u16 bgscan_int; 1625 char buf[32]; 1626 ssize_t len; 1627 1628 vif = ath6kl_vif_first(ar); 1629 if (!vif) 1630 return -EIO; 1631 1632 len = min(count, sizeof(buf) - 1); 1633 if (copy_from_user(buf, user_buf, len)) 1634 return -EFAULT; 1635 1636 buf[len] = '\0'; 1637 if (kstrtou16(buf, 0, &bgscan_int)) 1638 return -EINVAL; 1639 1640 if (bgscan_int == 0) 1641 bgscan_int = 0xffff; 1642 1643 vif->bg_scan_period = bgscan_int; 1644 1645 ath6kl_wmi_scanparams_cmd(ar->wmi, 0, 0, 0, bgscan_int, 0, 0, 0, 3, 1646 0, 0, 0); 1647 1648 return count; 1649 } 1650 1651 static const struct file_operations fops_bgscan_int = { 1652 .write = ath6kl_bgscan_int_write, 1653 .open = simple_open, 1654 .owner = THIS_MODULE, 1655 .llseek = default_llseek, 1656 }; 1657 1658 static ssize_t ath6kl_listen_int_write(struct file *file, 1659 const char __user *user_buf, 1660 size_t count, loff_t *ppos) 1661 { 1662 struct ath6kl *ar = file->private_data; 1663 struct ath6kl_vif *vif; 1664 u16 listen_interval; 1665 char buf[32]; 1666 ssize_t len; 1667 1668 vif = ath6kl_vif_first(ar); 1669 if (!vif) 1670 return -EIO; 1671 1672 len = min(count, sizeof(buf) - 1); 1673 if (copy_from_user(buf, user_buf, len)) 1674 return -EFAULT; 1675 1676 buf[len] = '\0'; 1677 if (kstrtou16(buf, 0, &listen_interval)) 1678 return -EINVAL; 1679 1680 if ((listen_interval < 15) || (listen_interval > 3000)) 1681 return -EINVAL; 1682 1683 vif->listen_intvl_t = listen_interval; 1684 ath6kl_wmi_listeninterval_cmd(ar->wmi, vif->fw_vif_idx, 1685 vif->listen_intvl_t, 0); 1686 1687 return count; 1688 } 1689 1690 static ssize_t ath6kl_listen_int_read(struct file *file, 1691 char __user *user_buf, 1692 size_t count, loff_t *ppos) 1693 { 1694 struct ath6kl *ar = file->private_data; 1695 struct ath6kl_vif *vif; 1696 char buf[32]; 1697 int len; 1698 1699 vif = ath6kl_vif_first(ar); 1700 if (!vif) 1701 return -EIO; 1702 1703 len = scnprintf(buf, sizeof(buf), "%u\n", vif->listen_intvl_t); 1704 1705 return simple_read_from_buffer(user_buf, count, ppos, buf, len); 1706 } 1707 1708 static const struct file_operations fops_listen_int = { 1709 .read = ath6kl_listen_int_read, 1710 .write = ath6kl_listen_int_write, 1711 .open = simple_open, 1712 .owner = THIS_MODULE, 1713 .llseek = default_llseek, 1714 }; 1715 1716 static ssize_t ath6kl_power_params_write(struct file *file, 1717 const char __user *user_buf, 1718 size_t count, loff_t *ppos) 1719 { 1720 struct ath6kl *ar = file->private_data; 1721 u8 buf[100]; 1722 unsigned int len = 0; 1723 char *sptr, *token; 1724 u16 idle_period, ps_poll_num, dtim, 1725 tx_wakeup, num_tx; 1726 1727 len = min(count, sizeof(buf) - 1); 1728 if (copy_from_user(buf, user_buf, len)) 1729 return -EFAULT; 1730 buf[len] = '\0'; 1731 sptr = buf; 1732 1733 token = strsep(&sptr, " "); 1734 if (!token) 1735 return -EINVAL; 1736 if (kstrtou16(token, 0, &idle_period)) 1737 return -EINVAL; 1738 1739 token = strsep(&sptr, " "); 1740 if (!token) 1741 return -EINVAL; 1742 if (kstrtou16(token, 0, &ps_poll_num)) 1743 return -EINVAL; 1744 1745 token = strsep(&sptr, " "); 1746 if (!token) 1747 return -EINVAL; 1748 if (kstrtou16(token, 0, &dtim)) 1749 return -EINVAL; 1750 1751 token = strsep(&sptr, " "); 1752 if (!token) 1753 return -EINVAL; 1754 if (kstrtou16(token, 0, &tx_wakeup)) 1755 return -EINVAL; 1756 1757 token = strsep(&sptr, " "); 1758 if (!token) 1759 return -EINVAL; 1760 if (kstrtou16(token, 0, &num_tx)) 1761 return -EINVAL; 1762 1763 ath6kl_wmi_pmparams_cmd(ar->wmi, 0, idle_period, ps_poll_num, 1764 dtim, tx_wakeup, num_tx, 0); 1765 1766 return count; 1767 } 1768 1769 static const struct file_operations fops_power_params = { 1770 .write = ath6kl_power_params_write, 1771 .open = simple_open, 1772 .owner = THIS_MODULE, 1773 .llseek = default_llseek, 1774 }; 1775 1776 void ath6kl_debug_init(struct ath6kl *ar) 1777 { 1778 skb_queue_head_init(&ar->debug.fwlog_queue); 1779 init_completion(&ar->debug.fwlog_completion); 1780 1781 /* 1782 * Actually we are lying here but don't know how to read the mask 1783 * value from the firmware. 1784 */ 1785 ar->debug.fwlog_mask = 0; 1786 } 1787 1788 /* 1789 * Initialisation needs to happen in two stages as fwlog events can come 1790 * before cfg80211 is initialised, and debugfs depends on cfg80211 1791 * initialisation. 1792 */ 1793 int ath6kl_debug_init_fs(struct ath6kl *ar) 1794 { 1795 ar->debugfs_phy = debugfs_create_dir("ath6kl", 1796 ar->wiphy->debugfsdir); 1797 1798 debugfs_create_file("tgt_stats", 0400, ar->debugfs_phy, ar, 1799 &fops_tgt_stats); 1800 1801 if (ar->hif_type == ATH6KL_HIF_TYPE_SDIO) 1802 debugfs_create_file("credit_dist_stats", 0400, 1803 ar->debugfs_phy, ar, 1804 &fops_credit_dist_stats); 1805 1806 debugfs_create_file("endpoint_stats", 0600, 1807 ar->debugfs_phy, ar, &fops_endpoint_stats); 1808 1809 debugfs_create_file("fwlog", 0400, ar->debugfs_phy, ar, &fops_fwlog); 1810 1811 debugfs_create_file("fwlog_block", 0400, ar->debugfs_phy, ar, 1812 &fops_fwlog_block); 1813 1814 debugfs_create_file("fwlog_mask", 0600, ar->debugfs_phy, 1815 ar, &fops_fwlog_mask); 1816 1817 debugfs_create_file("reg_addr", 0600, ar->debugfs_phy, ar, 1818 &fops_diag_reg_read); 1819 1820 debugfs_create_file("reg_dump", 0400, ar->debugfs_phy, ar, 1821 &fops_reg_dump); 1822 1823 debugfs_create_file("lrssi_roam_threshold", 0600, 1824 ar->debugfs_phy, ar, &fops_lrssi_roam_threshold); 1825 1826 debugfs_create_file("reg_write", 0600, 1827 ar->debugfs_phy, ar, &fops_diag_reg_write); 1828 1829 debugfs_create_file("war_stats", 0400, ar->debugfs_phy, ar, 1830 &fops_war_stats); 1831 1832 debugfs_create_file("roam_table", 0400, ar->debugfs_phy, ar, 1833 &fops_roam_table); 1834 1835 debugfs_create_file("force_roam", 0200, ar->debugfs_phy, ar, 1836 &fops_force_roam); 1837 1838 debugfs_create_file("roam_mode", 0200, ar->debugfs_phy, ar, 1839 &fops_roam_mode); 1840 1841 debugfs_create_file("keepalive", 0600, ar->debugfs_phy, ar, 1842 &fops_keepalive); 1843 1844 debugfs_create_file("disconnect_timeout", 0600, 1845 ar->debugfs_phy, ar, &fops_disconnect_timeout); 1846 1847 debugfs_create_file("create_qos", 0200, ar->debugfs_phy, ar, 1848 &fops_create_qos); 1849 1850 debugfs_create_file("delete_qos", 0200, ar->debugfs_phy, ar, 1851 &fops_delete_qos); 1852 1853 debugfs_create_file("bgscan_interval", 0200, 1854 ar->debugfs_phy, ar, &fops_bgscan_int); 1855 1856 debugfs_create_file("listen_interval", 0600, 1857 ar->debugfs_phy, ar, &fops_listen_int); 1858 1859 debugfs_create_file("power_params", 0200, ar->debugfs_phy, ar, 1860 &fops_power_params); 1861 1862 return 0; 1863 } 1864 1865 void ath6kl_debug_cleanup(struct ath6kl *ar) 1866 { 1867 skb_queue_purge(&ar->debug.fwlog_queue); 1868 complete(&ar->debug.fwlog_completion); 1869 kfree(ar->debug.roam_tbl); 1870 } 1871 1872 #endif 1873