1 /* 2 * Copyright (c) 2004-2011 Atheros Communications Inc. 3 * Copyright (c) 2011-2012 Qualcomm Atheros, Inc. 4 * 5 * Permission to use, copy, modify, and/or distribute this software for any 6 * purpose with or without fee is hereby granted, provided that the above 7 * copyright notice and this permission notice appear in all copies. 8 * 9 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES 10 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF 11 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR 12 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES 13 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN 14 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF 15 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. 16 */ 17 18 #include "core.h" 19 20 #include <linux/skbuff.h> 21 #include <linux/fs.h> 22 #include <linux/vmalloc.h> 23 #include <linux/export.h> 24 25 #include "debug.h" 26 #include "target.h" 27 28 struct ath6kl_fwlog_slot { 29 __le32 timestamp; 30 __le32 length; 31 32 /* max ATH6KL_FWLOG_PAYLOAD_SIZE bytes */ 33 u8 payload[0]; 34 }; 35 36 #define ATH6KL_FWLOG_MAX_ENTRIES 20 37 38 #define ATH6KL_FWLOG_VALID_MASK 0x1ffff 39 40 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 = (struct ath6kl_fwlog_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 chache 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 (sizeof(*tbl) + num_entries * sizeof(struct wmi_bss_roam_info) > 1136 len) 1137 return -EINVAL; 1138 1139 if (ar->debug.roam_tbl == NULL || 1140 ar->debug.roam_tbl_len < (unsigned int) len) { 1141 kfree(ar->debug.roam_tbl); 1142 ar->debug.roam_tbl = kmalloc(len, GFP_ATOMIC); 1143 if (ar->debug.roam_tbl == NULL) 1144 return -ENOMEM; 1145 } 1146 1147 memcpy(ar->debug.roam_tbl, buf, len); 1148 ar->debug.roam_tbl_len = len; 1149 1150 if (test_bit(ROAM_TBL_PEND, &ar->flag)) { 1151 clear_bit(ROAM_TBL_PEND, &ar->flag); 1152 wake_up(&ar->event_wq); 1153 } 1154 1155 return 0; 1156 } 1157 1158 static ssize_t ath6kl_roam_table_read(struct file *file, char __user *user_buf, 1159 size_t count, loff_t *ppos) 1160 { 1161 struct ath6kl *ar = file->private_data; 1162 int ret; 1163 long left; 1164 struct wmi_target_roam_tbl *tbl; 1165 u16 num_entries, i; 1166 char *buf; 1167 unsigned int len, buf_len; 1168 ssize_t ret_cnt; 1169 1170 if (down_interruptible(&ar->sem)) 1171 return -EBUSY; 1172 1173 set_bit(ROAM_TBL_PEND, &ar->flag); 1174 1175 ret = ath6kl_wmi_get_roam_tbl_cmd(ar->wmi); 1176 if (ret) { 1177 up(&ar->sem); 1178 return ret; 1179 } 1180 1181 left = wait_event_interruptible_timeout( 1182 ar->event_wq, !test_bit(ROAM_TBL_PEND, &ar->flag), WMI_TIMEOUT); 1183 up(&ar->sem); 1184 1185 if (left <= 0) 1186 return -ETIMEDOUT; 1187 1188 if (ar->debug.roam_tbl == NULL) 1189 return -ENOMEM; 1190 1191 tbl = (struct wmi_target_roam_tbl *) ar->debug.roam_tbl; 1192 num_entries = le16_to_cpu(tbl->num_entries); 1193 1194 buf_len = 100 + num_entries * 100; 1195 buf = kzalloc(buf_len, GFP_KERNEL); 1196 if (buf == NULL) 1197 return -ENOMEM; 1198 len = 0; 1199 len += scnprintf(buf + len, buf_len - len, 1200 "roam_mode=%u\n\n" 1201 "# roam_util bssid rssi rssidt last_rssi util bias\n", 1202 le16_to_cpu(tbl->roam_mode)); 1203 1204 for (i = 0; i < num_entries; i++) { 1205 struct wmi_bss_roam_info *info = &tbl->info[i]; 1206 len += scnprintf(buf + len, buf_len - len, 1207 "%d %pM %d %d %d %d %d\n", 1208 a_sle32_to_cpu(info->roam_util), info->bssid, 1209 info->rssi, info->rssidt, info->last_rssi, 1210 info->util, info->bias); 1211 } 1212 1213 if (len > buf_len) 1214 len = buf_len; 1215 1216 ret_cnt = simple_read_from_buffer(user_buf, count, ppos, buf, len); 1217 1218 kfree(buf); 1219 return ret_cnt; 1220 } 1221 1222 static const struct file_operations fops_roam_table = { 1223 .read = ath6kl_roam_table_read, 1224 .open = simple_open, 1225 .owner = THIS_MODULE, 1226 .llseek = default_llseek, 1227 }; 1228 1229 static ssize_t ath6kl_force_roam_write(struct file *file, 1230 const char __user *user_buf, 1231 size_t count, loff_t *ppos) 1232 { 1233 struct ath6kl *ar = file->private_data; 1234 int ret; 1235 char buf[20]; 1236 size_t len; 1237 u8 bssid[ETH_ALEN]; 1238 1239 len = min(count, sizeof(buf) - 1); 1240 if (copy_from_user(buf, user_buf, len)) 1241 return -EFAULT; 1242 buf[len] = '\0'; 1243 1244 if (!mac_pton(buf, bssid)) 1245 return -EINVAL; 1246 1247 ret = ath6kl_wmi_force_roam_cmd(ar->wmi, bssid); 1248 if (ret) 1249 return ret; 1250 1251 return count; 1252 } 1253 1254 static const struct file_operations fops_force_roam = { 1255 .write = ath6kl_force_roam_write, 1256 .open = simple_open, 1257 .owner = THIS_MODULE, 1258 .llseek = default_llseek, 1259 }; 1260 1261 static ssize_t ath6kl_roam_mode_write(struct file *file, 1262 const char __user *user_buf, 1263 size_t count, loff_t *ppos) 1264 { 1265 struct ath6kl *ar = file->private_data; 1266 int ret; 1267 char buf[20]; 1268 size_t len; 1269 enum wmi_roam_mode mode; 1270 1271 len = min(count, sizeof(buf) - 1); 1272 if (copy_from_user(buf, user_buf, len)) 1273 return -EFAULT; 1274 buf[len] = '\0'; 1275 if (len > 0 && buf[len - 1] == '\n') 1276 buf[len - 1] = '\0'; 1277 1278 if (strcasecmp(buf, "default") == 0) 1279 mode = WMI_DEFAULT_ROAM_MODE; 1280 else if (strcasecmp(buf, "bssbias") == 0) 1281 mode = WMI_HOST_BIAS_ROAM_MODE; 1282 else if (strcasecmp(buf, "lock") == 0) 1283 mode = WMI_LOCK_BSS_MODE; 1284 else 1285 return -EINVAL; 1286 1287 ret = ath6kl_wmi_set_roam_mode_cmd(ar->wmi, mode); 1288 if (ret) 1289 return ret; 1290 1291 return count; 1292 } 1293 1294 static const struct file_operations fops_roam_mode = { 1295 .write = ath6kl_roam_mode_write, 1296 .open = simple_open, 1297 .owner = THIS_MODULE, 1298 .llseek = default_llseek, 1299 }; 1300 1301 void ath6kl_debug_set_keepalive(struct ath6kl *ar, u8 keepalive) 1302 { 1303 ar->debug.keepalive = keepalive; 1304 } 1305 1306 static ssize_t ath6kl_keepalive_read(struct file *file, char __user *user_buf, 1307 size_t count, loff_t *ppos) 1308 { 1309 struct ath6kl *ar = file->private_data; 1310 char buf[16]; 1311 int len; 1312 1313 len = snprintf(buf, sizeof(buf), "%u\n", ar->debug.keepalive); 1314 1315 return simple_read_from_buffer(user_buf, count, ppos, buf, len); 1316 } 1317 1318 static ssize_t ath6kl_keepalive_write(struct file *file, 1319 const char __user *user_buf, 1320 size_t count, loff_t *ppos) 1321 { 1322 struct ath6kl *ar = file->private_data; 1323 int ret; 1324 u8 val; 1325 1326 ret = kstrtou8_from_user(user_buf, count, 0, &val); 1327 if (ret) 1328 return ret; 1329 1330 ret = ath6kl_wmi_set_keepalive_cmd(ar->wmi, 0, val); 1331 if (ret) 1332 return ret; 1333 1334 return count; 1335 } 1336 1337 static const struct file_operations fops_keepalive = { 1338 .open = simple_open, 1339 .read = ath6kl_keepalive_read, 1340 .write = ath6kl_keepalive_write, 1341 .owner = THIS_MODULE, 1342 .llseek = default_llseek, 1343 }; 1344 1345 void ath6kl_debug_set_disconnect_timeout(struct ath6kl *ar, u8 timeout) 1346 { 1347 ar->debug.disc_timeout = timeout; 1348 } 1349 1350 static ssize_t ath6kl_disconnect_timeout_read(struct file *file, 1351 char __user *user_buf, 1352 size_t count, loff_t *ppos) 1353 { 1354 struct ath6kl *ar = file->private_data; 1355 char buf[16]; 1356 int len; 1357 1358 len = snprintf(buf, sizeof(buf), "%u\n", ar->debug.disc_timeout); 1359 1360 return simple_read_from_buffer(user_buf, count, ppos, buf, len); 1361 } 1362 1363 static ssize_t ath6kl_disconnect_timeout_write(struct file *file, 1364 const char __user *user_buf, 1365 size_t count, loff_t *ppos) 1366 { 1367 struct ath6kl *ar = file->private_data; 1368 int ret; 1369 u8 val; 1370 1371 ret = kstrtou8_from_user(user_buf, count, 0, &val); 1372 if (ret) 1373 return ret; 1374 1375 ret = ath6kl_wmi_disctimeout_cmd(ar->wmi, 0, val); 1376 if (ret) 1377 return ret; 1378 1379 return count; 1380 } 1381 1382 static const struct file_operations fops_disconnect_timeout = { 1383 .open = simple_open, 1384 .read = ath6kl_disconnect_timeout_read, 1385 .write = ath6kl_disconnect_timeout_write, 1386 .owner = THIS_MODULE, 1387 .llseek = default_llseek, 1388 }; 1389 1390 static ssize_t ath6kl_create_qos_write(struct file *file, 1391 const char __user *user_buf, 1392 size_t count, loff_t *ppos) 1393 { 1394 struct ath6kl *ar = file->private_data; 1395 struct ath6kl_vif *vif; 1396 char buf[200]; 1397 ssize_t len; 1398 char *sptr, *token; 1399 struct wmi_create_pstream_cmd pstream; 1400 u32 val32; 1401 u16 val16; 1402 1403 vif = ath6kl_vif_first(ar); 1404 if (!vif) 1405 return -EIO; 1406 1407 len = min(count, sizeof(buf) - 1); 1408 if (copy_from_user(buf, user_buf, len)) 1409 return -EFAULT; 1410 buf[len] = '\0'; 1411 sptr = buf; 1412 1413 token = strsep(&sptr, " "); 1414 if (!token) 1415 return -EINVAL; 1416 if (kstrtou8(token, 0, &pstream.user_pri)) 1417 return -EINVAL; 1418 1419 token = strsep(&sptr, " "); 1420 if (!token) 1421 return -EINVAL; 1422 if (kstrtou8(token, 0, &pstream.traffic_direc)) 1423 return -EINVAL; 1424 1425 token = strsep(&sptr, " "); 1426 if (!token) 1427 return -EINVAL; 1428 if (kstrtou8(token, 0, &pstream.traffic_class)) 1429 return -EINVAL; 1430 1431 token = strsep(&sptr, " "); 1432 if (!token) 1433 return -EINVAL; 1434 if (kstrtou8(token, 0, &pstream.traffic_type)) 1435 return -EINVAL; 1436 1437 token = strsep(&sptr, " "); 1438 if (!token) 1439 return -EINVAL; 1440 if (kstrtou8(token, 0, &pstream.voice_psc_cap)) 1441 return -EINVAL; 1442 1443 token = strsep(&sptr, " "); 1444 if (!token) 1445 return -EINVAL; 1446 if (kstrtou32(token, 0, &val32)) 1447 return -EINVAL; 1448 pstream.min_service_int = cpu_to_le32(val32); 1449 1450 token = strsep(&sptr, " "); 1451 if (!token) 1452 return -EINVAL; 1453 if (kstrtou32(token, 0, &val32)) 1454 return -EINVAL; 1455 pstream.max_service_int = cpu_to_le32(val32); 1456 1457 token = strsep(&sptr, " "); 1458 if (!token) 1459 return -EINVAL; 1460 if (kstrtou32(token, 0, &val32)) 1461 return -EINVAL; 1462 pstream.inactivity_int = cpu_to_le32(val32); 1463 1464 token = strsep(&sptr, " "); 1465 if (!token) 1466 return -EINVAL; 1467 if (kstrtou32(token, 0, &val32)) 1468 return -EINVAL; 1469 pstream.suspension_int = cpu_to_le32(val32); 1470 1471 token = strsep(&sptr, " "); 1472 if (!token) 1473 return -EINVAL; 1474 if (kstrtou32(token, 0, &val32)) 1475 return -EINVAL; 1476 pstream.service_start_time = cpu_to_le32(val32); 1477 1478 token = strsep(&sptr, " "); 1479 if (!token) 1480 return -EINVAL; 1481 if (kstrtou8(token, 0, &pstream.tsid)) 1482 return -EINVAL; 1483 1484 token = strsep(&sptr, " "); 1485 if (!token) 1486 return -EINVAL; 1487 if (kstrtou16(token, 0, &val16)) 1488 return -EINVAL; 1489 pstream.nominal_msdu = cpu_to_le16(val16); 1490 1491 token = strsep(&sptr, " "); 1492 if (!token) 1493 return -EINVAL; 1494 if (kstrtou16(token, 0, &val16)) 1495 return -EINVAL; 1496 pstream.max_msdu = cpu_to_le16(val16); 1497 1498 token = strsep(&sptr, " "); 1499 if (!token) 1500 return -EINVAL; 1501 if (kstrtou32(token, 0, &val32)) 1502 return -EINVAL; 1503 pstream.min_data_rate = cpu_to_le32(val32); 1504 1505 token = strsep(&sptr, " "); 1506 if (!token) 1507 return -EINVAL; 1508 if (kstrtou32(token, 0, &val32)) 1509 return -EINVAL; 1510 pstream.mean_data_rate = cpu_to_le32(val32); 1511 1512 token = strsep(&sptr, " "); 1513 if (!token) 1514 return -EINVAL; 1515 if (kstrtou32(token, 0, &val32)) 1516 return -EINVAL; 1517 pstream.peak_data_rate = cpu_to_le32(val32); 1518 1519 token = strsep(&sptr, " "); 1520 if (!token) 1521 return -EINVAL; 1522 if (kstrtou32(token, 0, &val32)) 1523 return -EINVAL; 1524 pstream.max_burst_size = cpu_to_le32(val32); 1525 1526 token = strsep(&sptr, " "); 1527 if (!token) 1528 return -EINVAL; 1529 if (kstrtou32(token, 0, &val32)) 1530 return -EINVAL; 1531 pstream.delay_bound = cpu_to_le32(val32); 1532 1533 token = strsep(&sptr, " "); 1534 if (!token) 1535 return -EINVAL; 1536 if (kstrtou32(token, 0, &val32)) 1537 return -EINVAL; 1538 pstream.min_phy_rate = cpu_to_le32(val32); 1539 1540 token = strsep(&sptr, " "); 1541 if (!token) 1542 return -EINVAL; 1543 if (kstrtou32(token, 0, &val32)) 1544 return -EINVAL; 1545 pstream.sba = cpu_to_le32(val32); 1546 1547 token = strsep(&sptr, " "); 1548 if (!token) 1549 return -EINVAL; 1550 if (kstrtou32(token, 0, &val32)) 1551 return -EINVAL; 1552 pstream.medium_time = cpu_to_le32(val32); 1553 1554 pstream.nominal_phy = le32_to_cpu(pstream.min_phy_rate) / 1000000; 1555 1556 ath6kl_wmi_create_pstream_cmd(ar->wmi, vif->fw_vif_idx, &pstream); 1557 1558 return count; 1559 } 1560 1561 static const struct file_operations fops_create_qos = { 1562 .write = ath6kl_create_qos_write, 1563 .open = simple_open, 1564 .owner = THIS_MODULE, 1565 .llseek = default_llseek, 1566 }; 1567 1568 static ssize_t ath6kl_delete_qos_write(struct file *file, 1569 const char __user *user_buf, 1570 size_t count, loff_t *ppos) 1571 { 1572 struct ath6kl *ar = file->private_data; 1573 struct ath6kl_vif *vif; 1574 char buf[100]; 1575 ssize_t len; 1576 char *sptr, *token; 1577 u8 traffic_class; 1578 u8 tsid; 1579 1580 vif = ath6kl_vif_first(ar); 1581 if (!vif) 1582 return -EIO; 1583 1584 len = min(count, sizeof(buf) - 1); 1585 if (copy_from_user(buf, user_buf, len)) 1586 return -EFAULT; 1587 buf[len] = '\0'; 1588 sptr = buf; 1589 1590 token = strsep(&sptr, " "); 1591 if (!token) 1592 return -EINVAL; 1593 if (kstrtou8(token, 0, &traffic_class)) 1594 return -EINVAL; 1595 1596 token = strsep(&sptr, " "); 1597 if (!token) 1598 return -EINVAL; 1599 if (kstrtou8(token, 0, &tsid)) 1600 return -EINVAL; 1601 1602 ath6kl_wmi_delete_pstream_cmd(ar->wmi, vif->fw_vif_idx, 1603 traffic_class, tsid); 1604 1605 return count; 1606 } 1607 1608 static const struct file_operations fops_delete_qos = { 1609 .write = ath6kl_delete_qos_write, 1610 .open = simple_open, 1611 .owner = THIS_MODULE, 1612 .llseek = default_llseek, 1613 }; 1614 1615 static ssize_t ath6kl_bgscan_int_write(struct file *file, 1616 const char __user *user_buf, 1617 size_t count, loff_t *ppos) 1618 { 1619 struct ath6kl *ar = file->private_data; 1620 struct ath6kl_vif *vif; 1621 u16 bgscan_int; 1622 char buf[32]; 1623 ssize_t len; 1624 1625 vif = ath6kl_vif_first(ar); 1626 if (!vif) 1627 return -EIO; 1628 1629 len = min(count, sizeof(buf) - 1); 1630 if (copy_from_user(buf, user_buf, len)) 1631 return -EFAULT; 1632 1633 buf[len] = '\0'; 1634 if (kstrtou16(buf, 0, &bgscan_int)) 1635 return -EINVAL; 1636 1637 if (bgscan_int == 0) 1638 bgscan_int = 0xffff; 1639 1640 vif->bg_scan_period = bgscan_int; 1641 1642 ath6kl_wmi_scanparams_cmd(ar->wmi, 0, 0, 0, bgscan_int, 0, 0, 0, 3, 1643 0, 0, 0); 1644 1645 return count; 1646 } 1647 1648 static const struct file_operations fops_bgscan_int = { 1649 .write = ath6kl_bgscan_int_write, 1650 .open = simple_open, 1651 .owner = THIS_MODULE, 1652 .llseek = default_llseek, 1653 }; 1654 1655 static ssize_t ath6kl_listen_int_write(struct file *file, 1656 const char __user *user_buf, 1657 size_t count, loff_t *ppos) 1658 { 1659 struct ath6kl *ar = file->private_data; 1660 struct ath6kl_vif *vif; 1661 u16 listen_interval; 1662 char buf[32]; 1663 ssize_t len; 1664 1665 vif = ath6kl_vif_first(ar); 1666 if (!vif) 1667 return -EIO; 1668 1669 len = min(count, sizeof(buf) - 1); 1670 if (copy_from_user(buf, user_buf, len)) 1671 return -EFAULT; 1672 1673 buf[len] = '\0'; 1674 if (kstrtou16(buf, 0, &listen_interval)) 1675 return -EINVAL; 1676 1677 if ((listen_interval < 15) || (listen_interval > 3000)) 1678 return -EINVAL; 1679 1680 vif->listen_intvl_t = listen_interval; 1681 ath6kl_wmi_listeninterval_cmd(ar->wmi, vif->fw_vif_idx, 1682 vif->listen_intvl_t, 0); 1683 1684 return count; 1685 } 1686 1687 static ssize_t ath6kl_listen_int_read(struct file *file, 1688 char __user *user_buf, 1689 size_t count, loff_t *ppos) 1690 { 1691 struct ath6kl *ar = file->private_data; 1692 struct ath6kl_vif *vif; 1693 char buf[32]; 1694 int len; 1695 1696 vif = ath6kl_vif_first(ar); 1697 if (!vif) 1698 return -EIO; 1699 1700 len = scnprintf(buf, sizeof(buf), "%u\n", vif->listen_intvl_t); 1701 1702 return simple_read_from_buffer(user_buf, count, ppos, buf, len); 1703 } 1704 1705 static const struct file_operations fops_listen_int = { 1706 .read = ath6kl_listen_int_read, 1707 .write = ath6kl_listen_int_write, 1708 .open = simple_open, 1709 .owner = THIS_MODULE, 1710 .llseek = default_llseek, 1711 }; 1712 1713 static ssize_t ath6kl_power_params_write(struct file *file, 1714 const char __user *user_buf, 1715 size_t count, loff_t *ppos) 1716 { 1717 struct ath6kl *ar = file->private_data; 1718 u8 buf[100]; 1719 unsigned int len = 0; 1720 char *sptr, *token; 1721 u16 idle_period, ps_poll_num, dtim, 1722 tx_wakeup, num_tx; 1723 1724 len = min(count, sizeof(buf) - 1); 1725 if (copy_from_user(buf, user_buf, len)) 1726 return -EFAULT; 1727 buf[len] = '\0'; 1728 sptr = buf; 1729 1730 token = strsep(&sptr, " "); 1731 if (!token) 1732 return -EINVAL; 1733 if (kstrtou16(token, 0, &idle_period)) 1734 return -EINVAL; 1735 1736 token = strsep(&sptr, " "); 1737 if (!token) 1738 return -EINVAL; 1739 if (kstrtou16(token, 0, &ps_poll_num)) 1740 return -EINVAL; 1741 1742 token = strsep(&sptr, " "); 1743 if (!token) 1744 return -EINVAL; 1745 if (kstrtou16(token, 0, &dtim)) 1746 return -EINVAL; 1747 1748 token = strsep(&sptr, " "); 1749 if (!token) 1750 return -EINVAL; 1751 if (kstrtou16(token, 0, &tx_wakeup)) 1752 return -EINVAL; 1753 1754 token = strsep(&sptr, " "); 1755 if (!token) 1756 return -EINVAL; 1757 if (kstrtou16(token, 0, &num_tx)) 1758 return -EINVAL; 1759 1760 ath6kl_wmi_pmparams_cmd(ar->wmi, 0, idle_period, ps_poll_num, 1761 dtim, tx_wakeup, num_tx, 0); 1762 1763 return count; 1764 } 1765 1766 static const struct file_operations fops_power_params = { 1767 .write = ath6kl_power_params_write, 1768 .open = simple_open, 1769 .owner = THIS_MODULE, 1770 .llseek = default_llseek, 1771 }; 1772 1773 void ath6kl_debug_init(struct ath6kl *ar) 1774 { 1775 skb_queue_head_init(&ar->debug.fwlog_queue); 1776 init_completion(&ar->debug.fwlog_completion); 1777 1778 /* 1779 * Actually we are lying here but don't know how to read the mask 1780 * value from the firmware. 1781 */ 1782 ar->debug.fwlog_mask = 0; 1783 } 1784 1785 /* 1786 * Initialisation needs to happen in two stages as fwlog events can come 1787 * before cfg80211 is initialised, and debugfs depends on cfg80211 1788 * initialisation. 1789 */ 1790 int ath6kl_debug_init_fs(struct ath6kl *ar) 1791 { 1792 ar->debugfs_phy = debugfs_create_dir("ath6kl", 1793 ar->wiphy->debugfsdir); 1794 if (!ar->debugfs_phy) 1795 return -ENOMEM; 1796 1797 debugfs_create_file("tgt_stats", S_IRUSR, ar->debugfs_phy, ar, 1798 &fops_tgt_stats); 1799 1800 if (ar->hif_type == ATH6KL_HIF_TYPE_SDIO) 1801 debugfs_create_file("credit_dist_stats", S_IRUSR, 1802 ar->debugfs_phy, ar, 1803 &fops_credit_dist_stats); 1804 1805 debugfs_create_file("endpoint_stats", S_IRUSR | S_IWUSR, 1806 ar->debugfs_phy, ar, &fops_endpoint_stats); 1807 1808 debugfs_create_file("fwlog", S_IRUSR, ar->debugfs_phy, ar, 1809 &fops_fwlog); 1810 1811 debugfs_create_file("fwlog_block", S_IRUSR, ar->debugfs_phy, ar, 1812 &fops_fwlog_block); 1813 1814 debugfs_create_file("fwlog_mask", S_IRUSR | S_IWUSR, ar->debugfs_phy, 1815 ar, &fops_fwlog_mask); 1816 1817 debugfs_create_file("reg_addr", S_IRUSR | S_IWUSR, ar->debugfs_phy, ar, 1818 &fops_diag_reg_read); 1819 1820 debugfs_create_file("reg_dump", S_IRUSR, ar->debugfs_phy, ar, 1821 &fops_reg_dump); 1822 1823 debugfs_create_file("lrssi_roam_threshold", S_IRUSR | S_IWUSR, 1824 ar->debugfs_phy, ar, &fops_lrssi_roam_threshold); 1825 1826 debugfs_create_file("reg_write", S_IRUSR | S_IWUSR, 1827 ar->debugfs_phy, ar, &fops_diag_reg_write); 1828 1829 debugfs_create_file("war_stats", S_IRUSR, ar->debugfs_phy, ar, 1830 &fops_war_stats); 1831 1832 debugfs_create_file("roam_table", S_IRUSR, ar->debugfs_phy, ar, 1833 &fops_roam_table); 1834 1835 debugfs_create_file("force_roam", S_IWUSR, ar->debugfs_phy, ar, 1836 &fops_force_roam); 1837 1838 debugfs_create_file("roam_mode", S_IWUSR, ar->debugfs_phy, ar, 1839 &fops_roam_mode); 1840 1841 debugfs_create_file("keepalive", S_IRUSR | S_IWUSR, ar->debugfs_phy, ar, 1842 &fops_keepalive); 1843 1844 debugfs_create_file("disconnect_timeout", S_IRUSR | S_IWUSR, 1845 ar->debugfs_phy, ar, &fops_disconnect_timeout); 1846 1847 debugfs_create_file("create_qos", S_IWUSR, ar->debugfs_phy, ar, 1848 &fops_create_qos); 1849 1850 debugfs_create_file("delete_qos", S_IWUSR, ar->debugfs_phy, ar, 1851 &fops_delete_qos); 1852 1853 debugfs_create_file("bgscan_interval", S_IWUSR, 1854 ar->debugfs_phy, ar, &fops_bgscan_int); 1855 1856 debugfs_create_file("listen_interval", S_IRUSR | S_IWUSR, 1857 ar->debugfs_phy, ar, &fops_listen_int); 1858 1859 debugfs_create_file("power_params", S_IWUSR, 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