1 /* 2 * Copyright (c) 2004-2011 Atheros Communications Inc. 3 * Copyright (c) 2011-2012 Qualcomm Atheros, Inc. 4 * 5 * Permission to use, copy, modify, and/or distribute this software for any 6 * purpose with or without fee is hereby granted, provided that the above 7 * copyright notice and this permission notice appear in all copies. 8 * 9 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES 10 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF 11 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR 12 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES 13 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN 14 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF 15 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. 16 */ 17 18 #include "core.h" 19 20 #include <linux/skbuff.h> 21 #include <linux/fs.h> 22 #include <linux/vmalloc.h> 23 #include <linux/export.h> 24 25 #include "debug.h" 26 #include "target.h" 27 28 struct ath6kl_fwlog_slot { 29 __le32 timestamp; 30 __le32 length; 31 32 /* max ATH6KL_FWLOG_PAYLOAD_SIZE bytes */ 33 u8 payload[0]; 34 }; 35 36 #define ATH6KL_FWLOG_MAX_ENTRIES 20 37 38 #define ATH6KL_FWLOG_VALID_MASK 0x1ffff 39 40 int ath6kl_printk(const char *level, const char *fmt, ...) 41 { 42 struct va_format vaf; 43 va_list args; 44 int rtn; 45 46 va_start(args, fmt); 47 48 vaf.fmt = fmt; 49 vaf.va = &args; 50 51 rtn = printk("%sath6kl: %pV", level, &vaf); 52 53 va_end(args); 54 55 return rtn; 56 } 57 EXPORT_SYMBOL(ath6kl_printk); 58 59 int ath6kl_info(const char *fmt, ...) 60 { 61 struct va_format vaf = { 62 .fmt = fmt, 63 }; 64 va_list args; 65 int ret; 66 67 va_start(args, fmt); 68 vaf.va = &args; 69 ret = ath6kl_printk(KERN_INFO, "%pV", &vaf); 70 trace_ath6kl_log_info(&vaf); 71 va_end(args); 72 73 return ret; 74 } 75 EXPORT_SYMBOL(ath6kl_info); 76 77 int ath6kl_err(const char *fmt, ...) 78 { 79 struct va_format vaf = { 80 .fmt = fmt, 81 }; 82 va_list args; 83 int ret; 84 85 va_start(args, fmt); 86 vaf.va = &args; 87 ret = ath6kl_printk(KERN_ERR, "%pV", &vaf); 88 trace_ath6kl_log_err(&vaf); 89 va_end(args); 90 91 return ret; 92 } 93 EXPORT_SYMBOL(ath6kl_err); 94 95 int ath6kl_warn(const char *fmt, ...) 96 { 97 struct va_format vaf = { 98 .fmt = fmt, 99 }; 100 va_list args; 101 int ret; 102 103 va_start(args, fmt); 104 vaf.va = &args; 105 ret = ath6kl_printk(KERN_WARNING, "%pV", &vaf); 106 trace_ath6kl_log_warn(&vaf); 107 va_end(args); 108 109 return ret; 110 } 111 EXPORT_SYMBOL(ath6kl_warn); 112 113 #ifdef CONFIG_ATH6KL_DEBUG 114 115 void ath6kl_dbg(enum ATH6K_DEBUG_MASK mask, const char *fmt, ...) 116 { 117 struct va_format vaf; 118 va_list args; 119 120 va_start(args, fmt); 121 122 vaf.fmt = fmt; 123 vaf.va = &args; 124 125 if (debug_mask & mask) 126 ath6kl_printk(KERN_DEBUG, "%pV", &vaf); 127 128 trace_ath6kl_log_dbg(mask, &vaf); 129 130 va_end(args); 131 } 132 EXPORT_SYMBOL(ath6kl_dbg); 133 134 void ath6kl_dbg_dump(enum ATH6K_DEBUG_MASK mask, 135 const char *msg, const char *prefix, 136 const void *buf, size_t len) 137 { 138 if (debug_mask & mask) { 139 if (msg) 140 ath6kl_dbg(mask, "%s\n", msg); 141 142 print_hex_dump_bytes(prefix, DUMP_PREFIX_OFFSET, buf, len); 143 } 144 145 /* tracing code doesn't like null strings :/ */ 146 trace_ath6kl_log_dbg_dump(msg ? msg : "", prefix ? prefix : "", 147 buf, len); 148 } 149 EXPORT_SYMBOL(ath6kl_dbg_dump); 150 151 #define REG_OUTPUT_LEN_PER_LINE 25 152 #define REGTYPE_STR_LEN 100 153 154 struct ath6kl_diag_reg_info { 155 u32 reg_start; 156 u32 reg_end; 157 const char *reg_info; 158 }; 159 160 static const struct ath6kl_diag_reg_info diag_reg[] = { 161 { 0x20000, 0x200fc, "General DMA and Rx registers" }, 162 { 0x28000, 0x28900, "MAC PCU register & keycache" }, 163 { 0x20800, 0x20a40, "QCU" }, 164 { 0x21000, 0x212f0, "DCU" }, 165 { 0x4000, 0x42e4, "RTC" }, 166 { 0x540000, 0x540000 + (256 * 1024), "RAM" }, 167 { 0x29800, 0x2B210, "Base Band" }, 168 { 0x1C000, 0x1C748, "Analog" }, 169 }; 170 171 void ath6kl_dump_registers(struct ath6kl_device *dev, 172 struct ath6kl_irq_proc_registers *irq_proc_reg, 173 struct ath6kl_irq_enable_reg *irq_enable_reg) 174 { 175 ath6kl_dbg(ATH6KL_DBG_IRQ, ("<------- Register Table -------->\n")); 176 177 if (irq_proc_reg != NULL) { 178 ath6kl_dbg(ATH6KL_DBG_IRQ, 179 "Host Int status: 0x%x\n", 180 irq_proc_reg->host_int_status); 181 ath6kl_dbg(ATH6KL_DBG_IRQ, 182 "CPU Int status: 0x%x\n", 183 irq_proc_reg->cpu_int_status); 184 ath6kl_dbg(ATH6KL_DBG_IRQ, 185 "Error Int status: 0x%x\n", 186 irq_proc_reg->error_int_status); 187 ath6kl_dbg(ATH6KL_DBG_IRQ, 188 "Counter Int status: 0x%x\n", 189 irq_proc_reg->counter_int_status); 190 ath6kl_dbg(ATH6KL_DBG_IRQ, 191 "Mbox Frame: 0x%x\n", 192 irq_proc_reg->mbox_frame); 193 ath6kl_dbg(ATH6KL_DBG_IRQ, 194 "Rx Lookahead Valid: 0x%x\n", 195 irq_proc_reg->rx_lkahd_valid); 196 ath6kl_dbg(ATH6KL_DBG_IRQ, 197 "Rx Lookahead 0: 0x%x\n", 198 irq_proc_reg->rx_lkahd[0]); 199 ath6kl_dbg(ATH6KL_DBG_IRQ, 200 "Rx Lookahead 1: 0x%x\n", 201 irq_proc_reg->rx_lkahd[1]); 202 203 if (dev->ar->mbox_info.gmbox_addr != 0) { 204 /* 205 * If the target supports GMBOX hardware, dump some 206 * additional state. 207 */ 208 ath6kl_dbg(ATH6KL_DBG_IRQ, 209 "GMBOX Host Int status 2: 0x%x\n", 210 irq_proc_reg->host_int_status2); 211 ath6kl_dbg(ATH6KL_DBG_IRQ, 212 "GMBOX RX Avail: 0x%x\n", 213 irq_proc_reg->gmbox_rx_avail); 214 ath6kl_dbg(ATH6KL_DBG_IRQ, 215 "GMBOX lookahead alias 0: 0x%x\n", 216 irq_proc_reg->rx_gmbox_lkahd_alias[0]); 217 ath6kl_dbg(ATH6KL_DBG_IRQ, 218 "GMBOX lookahead alias 1: 0x%x\n", 219 irq_proc_reg->rx_gmbox_lkahd_alias[1]); 220 } 221 } 222 223 if (irq_enable_reg != NULL) { 224 ath6kl_dbg(ATH6KL_DBG_IRQ, 225 "Int status Enable: 0x%x\n", 226 irq_enable_reg->int_status_en); 227 ath6kl_dbg(ATH6KL_DBG_IRQ, "Counter Int status Enable: 0x%x\n", 228 irq_enable_reg->cntr_int_status_en); 229 } 230 ath6kl_dbg(ATH6KL_DBG_IRQ, "<------------------------------->\n"); 231 } 232 233 static void dump_cred_dist(struct htc_endpoint_credit_dist *ep_dist) 234 { 235 ath6kl_dbg(ATH6KL_DBG_CREDIT, 236 "--- endpoint: %d svc_id: 0x%X ---\n", 237 ep_dist->endpoint, ep_dist->svc_id); 238 ath6kl_dbg(ATH6KL_DBG_CREDIT, " dist_flags : 0x%X\n", 239 ep_dist->dist_flags); 240 ath6kl_dbg(ATH6KL_DBG_CREDIT, " cred_norm : %d\n", 241 ep_dist->cred_norm); 242 ath6kl_dbg(ATH6KL_DBG_CREDIT, " cred_min : %d\n", 243 ep_dist->cred_min); 244 ath6kl_dbg(ATH6KL_DBG_CREDIT, " credits : %d\n", 245 ep_dist->credits); 246 ath6kl_dbg(ATH6KL_DBG_CREDIT, " cred_assngd : %d\n", 247 ep_dist->cred_assngd); 248 ath6kl_dbg(ATH6KL_DBG_CREDIT, " seek_cred : %d\n", 249 ep_dist->seek_cred); 250 ath6kl_dbg(ATH6KL_DBG_CREDIT, " cred_sz : %d\n", 251 ep_dist->cred_sz); 252 ath6kl_dbg(ATH6KL_DBG_CREDIT, " cred_per_msg : %d\n", 253 ep_dist->cred_per_msg); 254 ath6kl_dbg(ATH6KL_DBG_CREDIT, " cred_to_dist : %d\n", 255 ep_dist->cred_to_dist); 256 ath6kl_dbg(ATH6KL_DBG_CREDIT, " txq_depth : %d\n", 257 get_queue_depth(&ep_dist->htc_ep->txq)); 258 ath6kl_dbg(ATH6KL_DBG_CREDIT, 259 "----------------------------------\n"); 260 } 261 262 /* FIXME: move to htc.c */ 263 void dump_cred_dist_stats(struct htc_target *target) 264 { 265 struct htc_endpoint_credit_dist *ep_list; 266 267 list_for_each_entry(ep_list, &target->cred_dist_list, list) 268 dump_cred_dist(ep_list); 269 270 ath6kl_dbg(ATH6KL_DBG_CREDIT, 271 "credit distribution total %d free %d\n", 272 target->credit_info->total_avail_credits, 273 target->credit_info->cur_free_credits); 274 } 275 276 void ath6kl_debug_war(struct ath6kl *ar, enum ath6kl_war war) 277 { 278 switch (war) { 279 case ATH6KL_WAR_INVALID_RATE: 280 ar->debug.war_stats.invalid_rate++; 281 break; 282 } 283 } 284 285 static ssize_t read_file_war_stats(struct file *file, char __user *user_buf, 286 size_t count, loff_t *ppos) 287 { 288 struct ath6kl *ar = file->private_data; 289 char *buf; 290 unsigned int len = 0, buf_len = 1500; 291 ssize_t ret_cnt; 292 293 buf = kzalloc(buf_len, GFP_KERNEL); 294 if (!buf) 295 return -ENOMEM; 296 297 len += scnprintf(buf + len, buf_len - len, "\n"); 298 len += scnprintf(buf + len, buf_len - len, "%25s\n", 299 "Workaround stats"); 300 len += scnprintf(buf + len, buf_len - len, "%25s\n\n", 301 "================="); 302 len += scnprintf(buf + len, buf_len - len, "%20s %10u\n", 303 "Invalid rates", ar->debug.war_stats.invalid_rate); 304 305 if (WARN_ON(len > buf_len)) 306 len = buf_len; 307 308 ret_cnt = simple_read_from_buffer(user_buf, count, ppos, buf, len); 309 310 kfree(buf); 311 return ret_cnt; 312 } 313 314 static const struct file_operations fops_war_stats = { 315 .read = read_file_war_stats, 316 .open = simple_open, 317 .owner = THIS_MODULE, 318 .llseek = default_llseek, 319 }; 320 321 void ath6kl_debug_fwlog_event(struct ath6kl *ar, const void *buf, size_t len) 322 { 323 struct ath6kl_fwlog_slot *slot; 324 struct sk_buff *skb; 325 size_t slot_len; 326 327 if (WARN_ON(len > ATH6KL_FWLOG_PAYLOAD_SIZE)) 328 return; 329 330 slot_len = sizeof(*slot) + ATH6KL_FWLOG_PAYLOAD_SIZE; 331 332 skb = alloc_skb(slot_len, GFP_KERNEL); 333 if (!skb) 334 return; 335 336 slot = (struct ath6kl_fwlog_slot *) skb_put(skb, slot_len); 337 slot->timestamp = cpu_to_le32(jiffies); 338 slot->length = cpu_to_le32(len); 339 memcpy(slot->payload, buf, len); 340 341 /* Need to pad each record to fixed length ATH6KL_FWLOG_PAYLOAD_SIZE */ 342 memset(slot->payload + len, 0, ATH6KL_FWLOG_PAYLOAD_SIZE - len); 343 344 spin_lock(&ar->debug.fwlog_queue.lock); 345 346 __skb_queue_tail(&ar->debug.fwlog_queue, skb); 347 complete(&ar->debug.fwlog_completion); 348 349 /* drop oldest entries */ 350 while (skb_queue_len(&ar->debug.fwlog_queue) > 351 ATH6KL_FWLOG_MAX_ENTRIES) { 352 skb = __skb_dequeue(&ar->debug.fwlog_queue); 353 kfree_skb(skb); 354 } 355 356 spin_unlock(&ar->debug.fwlog_queue.lock); 357 358 return; 359 } 360 361 static int ath6kl_fwlog_open(struct inode *inode, struct file *file) 362 { 363 struct ath6kl *ar = inode->i_private; 364 365 if (ar->debug.fwlog_open) 366 return -EBUSY; 367 368 ar->debug.fwlog_open = true; 369 370 file->private_data = inode->i_private; 371 return 0; 372 } 373 374 static int ath6kl_fwlog_release(struct inode *inode, struct file *file) 375 { 376 struct ath6kl *ar = inode->i_private; 377 378 ar->debug.fwlog_open = false; 379 380 return 0; 381 } 382 383 static ssize_t ath6kl_fwlog_read(struct file *file, char __user *user_buf, 384 size_t count, loff_t *ppos) 385 { 386 struct ath6kl *ar = file->private_data; 387 struct sk_buff *skb; 388 ssize_t ret_cnt; 389 size_t len = 0; 390 char *buf; 391 392 buf = vmalloc(count); 393 if (!buf) 394 return -ENOMEM; 395 396 /* read undelivered logs from firmware */ 397 ath6kl_read_fwlogs(ar); 398 399 spin_lock(&ar->debug.fwlog_queue.lock); 400 401 while ((skb = __skb_dequeue(&ar->debug.fwlog_queue))) { 402 if (skb->len > count - len) { 403 /* not enough space, put skb back and leave */ 404 __skb_queue_head(&ar->debug.fwlog_queue, skb); 405 break; 406 } 407 408 409 memcpy(buf + len, skb->data, skb->len); 410 len += skb->len; 411 412 kfree_skb(skb); 413 } 414 415 spin_unlock(&ar->debug.fwlog_queue.lock); 416 417 /* FIXME: what to do if len == 0? */ 418 419 ret_cnt = simple_read_from_buffer(user_buf, count, ppos, buf, len); 420 421 vfree(buf); 422 423 return ret_cnt; 424 } 425 426 static const struct file_operations fops_fwlog = { 427 .open = ath6kl_fwlog_open, 428 .release = ath6kl_fwlog_release, 429 .read = ath6kl_fwlog_read, 430 .owner = THIS_MODULE, 431 .llseek = default_llseek, 432 }; 433 434 static ssize_t ath6kl_fwlog_block_read(struct file *file, 435 char __user *user_buf, 436 size_t count, 437 loff_t *ppos) 438 { 439 struct ath6kl *ar = file->private_data; 440 struct sk_buff *skb; 441 ssize_t ret_cnt; 442 size_t len = 0, not_copied; 443 char *buf; 444 int ret; 445 446 buf = vmalloc(count); 447 if (!buf) 448 return -ENOMEM; 449 450 spin_lock(&ar->debug.fwlog_queue.lock); 451 452 if (skb_queue_len(&ar->debug.fwlog_queue) == 0) { 453 /* we must init under queue lock */ 454 init_completion(&ar->debug.fwlog_completion); 455 456 spin_unlock(&ar->debug.fwlog_queue.lock); 457 458 ret = wait_for_completion_interruptible( 459 &ar->debug.fwlog_completion); 460 if (ret == -ERESTARTSYS) { 461 vfree(buf); 462 return ret; 463 } 464 465 spin_lock(&ar->debug.fwlog_queue.lock); 466 } 467 468 while ((skb = __skb_dequeue(&ar->debug.fwlog_queue))) { 469 if (skb->len > count - len) { 470 /* not enough space, put skb back and leave */ 471 __skb_queue_head(&ar->debug.fwlog_queue, skb); 472 break; 473 } 474 475 476 memcpy(buf + len, skb->data, skb->len); 477 len += skb->len; 478 479 kfree_skb(skb); 480 } 481 482 spin_unlock(&ar->debug.fwlog_queue.lock); 483 484 /* FIXME: what to do if len == 0? */ 485 486 not_copied = copy_to_user(user_buf, buf, len); 487 if (not_copied != 0) { 488 ret_cnt = -EFAULT; 489 goto out; 490 } 491 492 *ppos = *ppos + len; 493 494 ret_cnt = len; 495 496 out: 497 vfree(buf); 498 499 return ret_cnt; 500 } 501 502 static const struct file_operations fops_fwlog_block = { 503 .open = ath6kl_fwlog_open, 504 .release = ath6kl_fwlog_release, 505 .read = ath6kl_fwlog_block_read, 506 .owner = THIS_MODULE, 507 .llseek = default_llseek, 508 }; 509 510 static ssize_t ath6kl_fwlog_mask_read(struct file *file, char __user *user_buf, 511 size_t count, loff_t *ppos) 512 { 513 struct ath6kl *ar = file->private_data; 514 char buf[16]; 515 int len; 516 517 len = snprintf(buf, sizeof(buf), "0x%x\n", ar->debug.fwlog_mask); 518 519 return simple_read_from_buffer(user_buf, count, ppos, buf, len); 520 } 521 522 static ssize_t ath6kl_fwlog_mask_write(struct file *file, 523 const char __user *user_buf, 524 size_t count, loff_t *ppos) 525 { 526 struct ath6kl *ar = file->private_data; 527 int ret; 528 529 ret = kstrtou32_from_user(user_buf, count, 0, &ar->debug.fwlog_mask); 530 if (ret) 531 return ret; 532 533 ret = ath6kl_wmi_config_debug_module_cmd(ar->wmi, 534 ATH6KL_FWLOG_VALID_MASK, 535 ar->debug.fwlog_mask); 536 if (ret) 537 return ret; 538 539 return count; 540 } 541 542 static const struct file_operations fops_fwlog_mask = { 543 .open = simple_open, 544 .read = ath6kl_fwlog_mask_read, 545 .write = ath6kl_fwlog_mask_write, 546 .owner = THIS_MODULE, 547 .llseek = default_llseek, 548 }; 549 550 static ssize_t read_file_tgt_stats(struct file *file, char __user *user_buf, 551 size_t count, loff_t *ppos) 552 { 553 struct ath6kl *ar = file->private_data; 554 struct ath6kl_vif *vif; 555 struct target_stats *tgt_stats; 556 char *buf; 557 unsigned int len = 0, buf_len = 1500; 558 int i; 559 long left; 560 ssize_t ret_cnt; 561 562 vif = ath6kl_vif_first(ar); 563 if (!vif) 564 return -EIO; 565 566 tgt_stats = &vif->target_stats; 567 568 buf = kzalloc(buf_len, GFP_KERNEL); 569 if (!buf) 570 return -ENOMEM; 571 572 if (down_interruptible(&ar->sem)) { 573 kfree(buf); 574 return -EBUSY; 575 } 576 577 set_bit(STATS_UPDATE_PEND, &vif->flags); 578 579 if (ath6kl_wmi_get_stats_cmd(ar->wmi, 0)) { 580 up(&ar->sem); 581 kfree(buf); 582 return -EIO; 583 } 584 585 left = wait_event_interruptible_timeout(ar->event_wq, 586 !test_bit(STATS_UPDATE_PEND, 587 &vif->flags), WMI_TIMEOUT); 588 589 up(&ar->sem); 590 591 if (left <= 0) { 592 kfree(buf); 593 return -ETIMEDOUT; 594 } 595 596 len += scnprintf(buf + len, buf_len - len, "\n"); 597 len += scnprintf(buf + len, buf_len - len, "%25s\n", 598 "Target Tx stats"); 599 len += scnprintf(buf + len, buf_len - len, "%25s\n\n", 600 "================="); 601 len += scnprintf(buf + len, buf_len - len, "%20s %10llu\n", 602 "Ucast packets", tgt_stats->tx_ucast_pkt); 603 len += scnprintf(buf + len, buf_len - len, "%20s %10llu\n", 604 "Bcast packets", tgt_stats->tx_bcast_pkt); 605 len += scnprintf(buf + len, buf_len - len, "%20s %10llu\n", 606 "Ucast byte", tgt_stats->tx_ucast_byte); 607 len += scnprintf(buf + len, buf_len - len, "%20s %10llu\n", 608 "Bcast byte", tgt_stats->tx_bcast_byte); 609 len += scnprintf(buf + len, buf_len - len, "%20s %10llu\n", 610 "Rts success cnt", tgt_stats->tx_rts_success_cnt); 611 for (i = 0; i < 4; i++) 612 len += scnprintf(buf + len, buf_len - len, 613 "%18s %d %10llu\n", "PER on ac", 614 i, tgt_stats->tx_pkt_per_ac[i]); 615 len += scnprintf(buf + len, buf_len - len, "%20s %10llu\n", 616 "Error", tgt_stats->tx_err); 617 len += scnprintf(buf + len, buf_len - len, "%20s %10llu\n", 618 "Fail count", tgt_stats->tx_fail_cnt); 619 len += scnprintf(buf + len, buf_len - len, "%20s %10llu\n", 620 "Retry count", tgt_stats->tx_retry_cnt); 621 len += scnprintf(buf + len, buf_len - len, "%20s %10llu\n", 622 "Multi retry cnt", tgt_stats->tx_mult_retry_cnt); 623 len += scnprintf(buf + len, buf_len - len, "%20s %10llu\n", 624 "Rts fail cnt", tgt_stats->tx_rts_fail_cnt); 625 len += scnprintf(buf + len, buf_len - len, "%25s %10llu\n\n", 626 "TKIP counter measure used", 627 tgt_stats->tkip_cnter_measures_invoked); 628 629 len += scnprintf(buf + len, buf_len - len, "%25s\n", 630 "Target Rx stats"); 631 len += scnprintf(buf + len, buf_len - len, "%25s\n", 632 "================="); 633 634 len += scnprintf(buf + len, buf_len - len, "%20s %10llu\n", 635 "Ucast packets", tgt_stats->rx_ucast_pkt); 636 len += scnprintf(buf + len, buf_len - len, "%20s %10d\n", 637 "Ucast Rate", tgt_stats->rx_ucast_rate); 638 len += scnprintf(buf + len, buf_len - len, "%20s %10llu\n", 639 "Bcast packets", tgt_stats->rx_bcast_pkt); 640 len += scnprintf(buf + len, buf_len - len, "%20s %10llu\n", 641 "Ucast byte", tgt_stats->rx_ucast_byte); 642 len += scnprintf(buf + len, buf_len - len, "%20s %10llu\n", 643 "Bcast byte", tgt_stats->rx_bcast_byte); 644 len += scnprintf(buf + len, buf_len - len, "%20s %10llu\n", 645 "Fragmented pkt", tgt_stats->rx_frgment_pkt); 646 len += scnprintf(buf + len, buf_len - len, "%20s %10llu\n", 647 "Error", tgt_stats->rx_err); 648 len += scnprintf(buf + len, buf_len - len, "%20s %10llu\n", 649 "CRC Err", tgt_stats->rx_crc_err); 650 len += scnprintf(buf + len, buf_len - len, "%20s %10llu\n", 651 "Key chache miss", tgt_stats->rx_key_cache_miss); 652 len += scnprintf(buf + len, buf_len - len, "%20s %10llu\n", 653 "Decrypt Err", tgt_stats->rx_decrypt_err); 654 len += scnprintf(buf + len, buf_len - len, "%20s %10llu\n", 655 "Duplicate frame", tgt_stats->rx_dupl_frame); 656 len += scnprintf(buf + len, buf_len - len, "%20s %10llu\n", 657 "Tkip Mic failure", tgt_stats->tkip_local_mic_fail); 658 len += scnprintf(buf + len, buf_len - len, "%20s %10llu\n", 659 "TKIP format err", tgt_stats->tkip_fmt_err); 660 len += scnprintf(buf + len, buf_len - len, "%20s %10llu\n", 661 "CCMP format Err", tgt_stats->ccmp_fmt_err); 662 len += scnprintf(buf + len, buf_len - len, "%20s %10llu\n\n", 663 "CCMP Replay Err", tgt_stats->ccmp_replays); 664 665 len += scnprintf(buf + len, buf_len - len, "%25s\n", 666 "Misc Target stats"); 667 len += scnprintf(buf + len, buf_len - len, "%25s\n", 668 "================="); 669 len += scnprintf(buf + len, buf_len - len, "%20s %10llu\n", 670 "Beacon Miss count", tgt_stats->cs_bmiss_cnt); 671 len += scnprintf(buf + len, buf_len - len, "%20s %10llu\n", 672 "Num Connects", tgt_stats->cs_connect_cnt); 673 len += scnprintf(buf + len, buf_len - len, "%20s %10llu\n", 674 "Num disconnects", tgt_stats->cs_discon_cnt); 675 len += scnprintf(buf + len, buf_len - len, "%20s %10d\n", 676 "Beacon avg rssi", tgt_stats->cs_ave_beacon_rssi); 677 len += scnprintf(buf + len, buf_len - len, "%20s %10d\n", 678 "ARP pkt received", tgt_stats->arp_received); 679 len += scnprintf(buf + len, buf_len - len, "%20s %10d\n", 680 "ARP pkt matched", tgt_stats->arp_matched); 681 len += scnprintf(buf + len, buf_len - len, "%20s %10d\n", 682 "ARP pkt replied", tgt_stats->arp_replied); 683 684 if (len > buf_len) 685 len = buf_len; 686 687 ret_cnt = simple_read_from_buffer(user_buf, count, ppos, buf, len); 688 689 kfree(buf); 690 return ret_cnt; 691 } 692 693 static const struct file_operations fops_tgt_stats = { 694 .read = read_file_tgt_stats, 695 .open = simple_open, 696 .owner = THIS_MODULE, 697 .llseek = default_llseek, 698 }; 699 700 #define print_credit_info(fmt_str, ep_list_field) \ 701 (len += scnprintf(buf + len, buf_len - len, fmt_str, \ 702 ep_list->ep_list_field)) 703 #define CREDIT_INFO_DISPLAY_STRING_LEN 200 704 #define CREDIT_INFO_LEN 128 705 706 static ssize_t read_file_credit_dist_stats(struct file *file, 707 char __user *user_buf, 708 size_t count, loff_t *ppos) 709 { 710 struct ath6kl *ar = file->private_data; 711 struct htc_target *target = ar->htc_target; 712 struct htc_endpoint_credit_dist *ep_list; 713 char *buf; 714 unsigned int buf_len, len = 0; 715 ssize_t ret_cnt; 716 717 buf_len = CREDIT_INFO_DISPLAY_STRING_LEN + 718 get_queue_depth(&target->cred_dist_list) * CREDIT_INFO_LEN; 719 buf = kzalloc(buf_len, GFP_KERNEL); 720 if (!buf) 721 return -ENOMEM; 722 723 len += scnprintf(buf + len, buf_len - len, "%25s%5d\n", 724 "Total Avail Credits: ", 725 target->credit_info->total_avail_credits); 726 len += scnprintf(buf + len, buf_len - len, "%25s%5d\n", 727 "Free credits :", 728 target->credit_info->cur_free_credits); 729 730 len += scnprintf(buf + len, buf_len - len, 731 " Epid Flags Cred_norm Cred_min Credits Cred_assngd" 732 " Seek_cred Cred_sz Cred_per_msg Cred_to_dist" 733 " qdepth\n"); 734 735 list_for_each_entry(ep_list, &target->cred_dist_list, list) { 736 print_credit_info(" %2d", endpoint); 737 print_credit_info("%10x", dist_flags); 738 print_credit_info("%8d", cred_norm); 739 print_credit_info("%9d", cred_min); 740 print_credit_info("%9d", credits); 741 print_credit_info("%10d", cred_assngd); 742 print_credit_info("%13d", seek_cred); 743 print_credit_info("%12d", cred_sz); 744 print_credit_info("%9d", cred_per_msg); 745 print_credit_info("%14d", cred_to_dist); 746 len += scnprintf(buf + len, buf_len - len, "%12d\n", 747 get_queue_depth(&ep_list->htc_ep->txq)); 748 } 749 750 if (len > buf_len) 751 len = buf_len; 752 753 ret_cnt = simple_read_from_buffer(user_buf, count, ppos, buf, len); 754 kfree(buf); 755 return ret_cnt; 756 } 757 758 static const struct file_operations fops_credit_dist_stats = { 759 .read = read_file_credit_dist_stats, 760 .open = simple_open, 761 .owner = THIS_MODULE, 762 .llseek = default_llseek, 763 }; 764 765 static unsigned int print_endpoint_stat(struct htc_target *target, char *buf, 766 unsigned int buf_len, unsigned int len, 767 int offset, const char *name) 768 { 769 int i; 770 struct htc_endpoint_stats *ep_st; 771 u32 *counter; 772 773 len += scnprintf(buf + len, buf_len - len, "%s:", name); 774 for (i = 0; i < ENDPOINT_MAX; i++) { 775 ep_st = &target->endpoint[i].ep_st; 776 counter = ((u32 *) ep_st) + (offset / 4); 777 len += scnprintf(buf + len, buf_len - len, " %u", *counter); 778 } 779 len += scnprintf(buf + len, buf_len - len, "\n"); 780 781 return len; 782 } 783 784 static ssize_t ath6kl_endpoint_stats_read(struct file *file, 785 char __user *user_buf, 786 size_t count, loff_t *ppos) 787 { 788 struct ath6kl *ar = file->private_data; 789 struct htc_target *target = ar->htc_target; 790 char *buf; 791 unsigned int buf_len, len = 0; 792 ssize_t ret_cnt; 793 794 buf_len = sizeof(struct htc_endpoint_stats) / sizeof(u32) * 795 (25 + ENDPOINT_MAX * 11); 796 buf = kmalloc(buf_len, GFP_KERNEL); 797 if (!buf) 798 return -ENOMEM; 799 800 #define EPSTAT(name) \ 801 do { \ 802 len = print_endpoint_stat(target, buf, buf_len, len, \ 803 offsetof(struct htc_endpoint_stats, \ 804 name), \ 805 #name); \ 806 } while (0) 807 808 EPSTAT(cred_low_indicate); 809 EPSTAT(tx_issued); 810 EPSTAT(tx_pkt_bundled); 811 EPSTAT(tx_bundles); 812 EPSTAT(tx_dropped); 813 EPSTAT(tx_cred_rpt); 814 EPSTAT(cred_rpt_from_rx); 815 EPSTAT(cred_rpt_from_other); 816 EPSTAT(cred_rpt_ep0); 817 EPSTAT(cred_from_rx); 818 EPSTAT(cred_from_other); 819 EPSTAT(cred_from_ep0); 820 EPSTAT(cred_cosumd); 821 EPSTAT(cred_retnd); 822 EPSTAT(rx_pkts); 823 EPSTAT(rx_lkahds); 824 EPSTAT(rx_bundl); 825 EPSTAT(rx_bundle_lkahd); 826 EPSTAT(rx_bundle_from_hdr); 827 EPSTAT(rx_alloc_thresh_hit); 828 EPSTAT(rxalloc_thresh_byte); 829 #undef EPSTAT 830 831 if (len > buf_len) 832 len = buf_len; 833 834 ret_cnt = simple_read_from_buffer(user_buf, count, ppos, buf, len); 835 kfree(buf); 836 return ret_cnt; 837 } 838 839 static ssize_t ath6kl_endpoint_stats_write(struct file *file, 840 const char __user *user_buf, 841 size_t count, loff_t *ppos) 842 { 843 struct ath6kl *ar = file->private_data; 844 struct htc_target *target = ar->htc_target; 845 int ret, i; 846 u32 val; 847 struct htc_endpoint_stats *ep_st; 848 849 ret = kstrtou32_from_user(user_buf, count, 0, &val); 850 if (ret) 851 return ret; 852 if (val == 0) { 853 for (i = 0; i < ENDPOINT_MAX; i++) { 854 ep_st = &target->endpoint[i].ep_st; 855 memset(ep_st, 0, sizeof(*ep_st)); 856 } 857 } 858 859 return count; 860 } 861 862 static const struct file_operations fops_endpoint_stats = { 863 .open = simple_open, 864 .read = ath6kl_endpoint_stats_read, 865 .write = ath6kl_endpoint_stats_write, 866 .owner = THIS_MODULE, 867 .llseek = default_llseek, 868 }; 869 870 static unsigned long ath6kl_get_num_reg(void) 871 { 872 int i; 873 unsigned long n_reg = 0; 874 875 for (i = 0; i < ARRAY_SIZE(diag_reg); i++) 876 n_reg = n_reg + 877 (diag_reg[i].reg_end - diag_reg[i].reg_start) / 4 + 1; 878 879 return n_reg; 880 } 881 882 static bool ath6kl_dbg_is_diag_reg_valid(u32 reg_addr) 883 { 884 int i; 885 886 for (i = 0; i < ARRAY_SIZE(diag_reg); i++) { 887 if (reg_addr >= diag_reg[i].reg_start && 888 reg_addr <= diag_reg[i].reg_end) 889 return true; 890 } 891 892 return false; 893 } 894 895 static ssize_t ath6kl_regread_read(struct file *file, char __user *user_buf, 896 size_t count, loff_t *ppos) 897 { 898 struct ath6kl *ar = file->private_data; 899 u8 buf[50]; 900 unsigned int len = 0; 901 902 if (ar->debug.dbgfs_diag_reg) 903 len += scnprintf(buf + len, sizeof(buf) - len, "0x%x\n", 904 ar->debug.dbgfs_diag_reg); 905 else 906 len += scnprintf(buf + len, sizeof(buf) - len, 907 "All diag registers\n"); 908 909 return simple_read_from_buffer(user_buf, count, ppos, buf, len); 910 } 911 912 static ssize_t ath6kl_regread_write(struct file *file, 913 const char __user *user_buf, 914 size_t count, loff_t *ppos) 915 { 916 struct ath6kl *ar = file->private_data; 917 unsigned long reg_addr; 918 919 if (kstrtoul_from_user(user_buf, count, 0, ®_addr)) 920 return -EINVAL; 921 922 if ((reg_addr % 4) != 0) 923 return -EINVAL; 924 925 if (reg_addr && !ath6kl_dbg_is_diag_reg_valid(reg_addr)) 926 return -EINVAL; 927 928 ar->debug.dbgfs_diag_reg = reg_addr; 929 930 return count; 931 } 932 933 static const struct file_operations fops_diag_reg_read = { 934 .read = ath6kl_regread_read, 935 .write = ath6kl_regread_write, 936 .open = simple_open, 937 .owner = THIS_MODULE, 938 .llseek = default_llseek, 939 }; 940 941 static int ath6kl_regdump_open(struct inode *inode, struct file *file) 942 { 943 struct ath6kl *ar = inode->i_private; 944 u8 *buf; 945 unsigned long int reg_len; 946 unsigned int len = 0, n_reg; 947 u32 addr; 948 __le32 reg_val; 949 int i, status; 950 951 /* Dump all the registers if no register is specified */ 952 if (!ar->debug.dbgfs_diag_reg) 953 n_reg = ath6kl_get_num_reg(); 954 else 955 n_reg = 1; 956 957 reg_len = n_reg * REG_OUTPUT_LEN_PER_LINE; 958 if (n_reg > 1) 959 reg_len += REGTYPE_STR_LEN; 960 961 buf = vmalloc(reg_len); 962 if (!buf) 963 return -ENOMEM; 964 965 if (n_reg == 1) { 966 addr = ar->debug.dbgfs_diag_reg; 967 968 status = ath6kl_diag_read32(ar, 969 TARG_VTOP(ar->target_type, addr), 970 (u32 *)®_val); 971 if (status) 972 goto fail_reg_read; 973 974 len += scnprintf(buf + len, reg_len - len, 975 "0x%06x 0x%08x\n", addr, le32_to_cpu(reg_val)); 976 goto done; 977 } 978 979 for (i = 0; i < ARRAY_SIZE(diag_reg); i++) { 980 len += scnprintf(buf + len, reg_len - len, 981 "%s\n", diag_reg[i].reg_info); 982 for (addr = diag_reg[i].reg_start; 983 addr <= diag_reg[i].reg_end; addr += 4) { 984 status = ath6kl_diag_read32(ar, 985 TARG_VTOP(ar->target_type, addr), 986 (u32 *)®_val); 987 if (status) 988 goto fail_reg_read; 989 990 len += scnprintf(buf + len, reg_len - len, 991 "0x%06x 0x%08x\n", 992 addr, le32_to_cpu(reg_val)); 993 } 994 } 995 996 done: 997 file->private_data = buf; 998 return 0; 999 1000 fail_reg_read: 1001 ath6kl_warn("Unable to read memory:%u\n", addr); 1002 vfree(buf); 1003 return -EIO; 1004 } 1005 1006 static ssize_t ath6kl_regdump_read(struct file *file, char __user *user_buf, 1007 size_t count, loff_t *ppos) 1008 { 1009 u8 *buf = file->private_data; 1010 return simple_read_from_buffer(user_buf, count, ppos, buf, strlen(buf)); 1011 } 1012 1013 static int ath6kl_regdump_release(struct inode *inode, struct file *file) 1014 { 1015 vfree(file->private_data); 1016 return 0; 1017 } 1018 1019 static const struct file_operations fops_reg_dump = { 1020 .open = ath6kl_regdump_open, 1021 .read = ath6kl_regdump_read, 1022 .release = ath6kl_regdump_release, 1023 .owner = THIS_MODULE, 1024 .llseek = default_llseek, 1025 }; 1026 1027 static ssize_t ath6kl_lrssi_roam_write(struct file *file, 1028 const char __user *user_buf, 1029 size_t count, loff_t *ppos) 1030 { 1031 struct ath6kl *ar = file->private_data; 1032 unsigned long lrssi_roam_threshold; 1033 1034 if (kstrtoul_from_user(user_buf, count, 0, &lrssi_roam_threshold)) 1035 return -EINVAL; 1036 1037 ar->lrssi_roam_threshold = lrssi_roam_threshold; 1038 1039 ath6kl_wmi_set_roam_lrssi_cmd(ar->wmi, ar->lrssi_roam_threshold); 1040 1041 return count; 1042 } 1043 1044 static ssize_t ath6kl_lrssi_roam_read(struct file *file, 1045 char __user *user_buf, 1046 size_t count, loff_t *ppos) 1047 { 1048 struct ath6kl *ar = file->private_data; 1049 char buf[32]; 1050 unsigned int len; 1051 1052 len = snprintf(buf, sizeof(buf), "%u\n", ar->lrssi_roam_threshold); 1053 1054 return simple_read_from_buffer(user_buf, count, ppos, buf, len); 1055 } 1056 1057 static const struct file_operations fops_lrssi_roam_threshold = { 1058 .read = ath6kl_lrssi_roam_read, 1059 .write = ath6kl_lrssi_roam_write, 1060 .open = simple_open, 1061 .owner = THIS_MODULE, 1062 .llseek = default_llseek, 1063 }; 1064 1065 static ssize_t ath6kl_regwrite_read(struct file *file, 1066 char __user *user_buf, 1067 size_t count, loff_t *ppos) 1068 { 1069 struct ath6kl *ar = file->private_data; 1070 u8 buf[32]; 1071 unsigned int len = 0; 1072 1073 len = scnprintf(buf, sizeof(buf), "Addr: 0x%x Val: 0x%x\n", 1074 ar->debug.diag_reg_addr_wr, ar->debug.diag_reg_val_wr); 1075 1076 return simple_read_from_buffer(user_buf, count, ppos, buf, len); 1077 } 1078 1079 static ssize_t ath6kl_regwrite_write(struct file *file, 1080 const char __user *user_buf, 1081 size_t count, loff_t *ppos) 1082 { 1083 struct ath6kl *ar = file->private_data; 1084 char buf[32]; 1085 char *sptr, *token; 1086 unsigned int len = 0; 1087 u32 reg_addr, reg_val; 1088 1089 len = min(count, sizeof(buf) - 1); 1090 if (copy_from_user(buf, user_buf, len)) 1091 return -EFAULT; 1092 1093 buf[len] = '\0'; 1094 sptr = buf; 1095 1096 token = strsep(&sptr, "="); 1097 if (!token) 1098 return -EINVAL; 1099 1100 if (kstrtou32(token, 0, ®_addr)) 1101 return -EINVAL; 1102 1103 if (!ath6kl_dbg_is_diag_reg_valid(reg_addr)) 1104 return -EINVAL; 1105 1106 if (kstrtou32(sptr, 0, ®_val)) 1107 return -EINVAL; 1108 1109 ar->debug.diag_reg_addr_wr = reg_addr; 1110 ar->debug.diag_reg_val_wr = reg_val; 1111 1112 if (ath6kl_diag_write32(ar, ar->debug.diag_reg_addr_wr, 1113 cpu_to_le32(ar->debug.diag_reg_val_wr))) 1114 return -EIO; 1115 1116 return count; 1117 } 1118 1119 static const struct file_operations fops_diag_reg_write = { 1120 .read = ath6kl_regwrite_read, 1121 .write = ath6kl_regwrite_write, 1122 .open = simple_open, 1123 .owner = THIS_MODULE, 1124 .llseek = default_llseek, 1125 }; 1126 1127 int ath6kl_debug_roam_tbl_event(struct ath6kl *ar, const void *buf, 1128 size_t len) 1129 { 1130 const struct wmi_target_roam_tbl *tbl; 1131 u16 num_entries; 1132 1133 if (len < sizeof(*tbl)) 1134 return -EINVAL; 1135 1136 tbl = (const struct wmi_target_roam_tbl *) buf; 1137 num_entries = le16_to_cpu(tbl->num_entries); 1138 if (sizeof(*tbl) + num_entries * sizeof(struct wmi_bss_roam_info) > 1139 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 if (!ar->debugfs_phy) 1798 return -ENOMEM; 1799 1800 debugfs_create_file("tgt_stats", S_IRUSR, ar->debugfs_phy, ar, 1801 &fops_tgt_stats); 1802 1803 if (ar->hif_type == ATH6KL_HIF_TYPE_SDIO) 1804 debugfs_create_file("credit_dist_stats", S_IRUSR, 1805 ar->debugfs_phy, ar, 1806 &fops_credit_dist_stats); 1807 1808 debugfs_create_file("endpoint_stats", S_IRUSR | S_IWUSR, 1809 ar->debugfs_phy, ar, &fops_endpoint_stats); 1810 1811 debugfs_create_file("fwlog", S_IRUSR, ar->debugfs_phy, ar, 1812 &fops_fwlog); 1813 1814 debugfs_create_file("fwlog_block", S_IRUSR, ar->debugfs_phy, ar, 1815 &fops_fwlog_block); 1816 1817 debugfs_create_file("fwlog_mask", S_IRUSR | S_IWUSR, ar->debugfs_phy, 1818 ar, &fops_fwlog_mask); 1819 1820 debugfs_create_file("reg_addr", S_IRUSR | S_IWUSR, ar->debugfs_phy, ar, 1821 &fops_diag_reg_read); 1822 1823 debugfs_create_file("reg_dump", S_IRUSR, ar->debugfs_phy, ar, 1824 &fops_reg_dump); 1825 1826 debugfs_create_file("lrssi_roam_threshold", S_IRUSR | S_IWUSR, 1827 ar->debugfs_phy, ar, &fops_lrssi_roam_threshold); 1828 1829 debugfs_create_file("reg_write", S_IRUSR | S_IWUSR, 1830 ar->debugfs_phy, ar, &fops_diag_reg_write); 1831 1832 debugfs_create_file("war_stats", S_IRUSR, ar->debugfs_phy, ar, 1833 &fops_war_stats); 1834 1835 debugfs_create_file("roam_table", S_IRUSR, ar->debugfs_phy, ar, 1836 &fops_roam_table); 1837 1838 debugfs_create_file("force_roam", S_IWUSR, ar->debugfs_phy, ar, 1839 &fops_force_roam); 1840 1841 debugfs_create_file("roam_mode", S_IWUSR, ar->debugfs_phy, ar, 1842 &fops_roam_mode); 1843 1844 debugfs_create_file("keepalive", S_IRUSR | S_IWUSR, ar->debugfs_phy, ar, 1845 &fops_keepalive); 1846 1847 debugfs_create_file("disconnect_timeout", S_IRUSR | S_IWUSR, 1848 ar->debugfs_phy, ar, &fops_disconnect_timeout); 1849 1850 debugfs_create_file("create_qos", S_IWUSR, ar->debugfs_phy, ar, 1851 &fops_create_qos); 1852 1853 debugfs_create_file("delete_qos", S_IWUSR, ar->debugfs_phy, ar, 1854 &fops_delete_qos); 1855 1856 debugfs_create_file("bgscan_interval", S_IWUSR, 1857 ar->debugfs_phy, ar, &fops_bgscan_int); 1858 1859 debugfs_create_file("listen_interval", S_IRUSR | S_IWUSR, 1860 ar->debugfs_phy, ar, &fops_listen_int); 1861 1862 debugfs_create_file("power_params", S_IWUSR, ar->debugfs_phy, ar, 1863 &fops_power_params); 1864 1865 return 0; 1866 } 1867 1868 void ath6kl_debug_cleanup(struct ath6kl *ar) 1869 { 1870 skb_queue_purge(&ar->debug.fwlog_queue); 1871 complete(&ar->debug.fwlog_completion); 1872 kfree(ar->debug.roam_tbl); 1873 } 1874 1875 #endif 1876