1 /* 2 * Copyright (c) 2004-2011 Atheros Communications Inc. 3 * 4 * Permission to use, copy, modify, and/or distribute this software for any 5 * purpose with or without fee is hereby granted, provided that the above 6 * copyright notice and this permission notice appear in all copies. 7 * 8 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES 9 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF 10 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR 11 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES 12 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN 13 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF 14 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. 15 */ 16 17 #include "core.h" 18 19 #include <linux/skbuff.h> 20 #include <linux/fs.h> 21 #include <linux/vmalloc.h> 22 #include <linux/export.h> 23 24 #include "debug.h" 25 #include "target.h" 26 27 struct ath6kl_fwlog_slot { 28 __le32 timestamp; 29 __le32 length; 30 31 /* max ATH6KL_FWLOG_PAYLOAD_SIZE bytes */ 32 u8 payload[0]; 33 }; 34 35 #define ATH6KL_FWLOG_MAX_ENTRIES 20 36 37 #define ATH6KL_FWLOG_VALID_MASK 0x1ffff 38 39 int ath6kl_printk(const char *level, const char *fmt, ...) 40 { 41 struct va_format vaf; 42 va_list args; 43 int rtn; 44 45 va_start(args, fmt); 46 47 vaf.fmt = fmt; 48 vaf.va = &args; 49 50 rtn = printk("%sath6kl: %pV", level, &vaf); 51 52 va_end(args); 53 54 return rtn; 55 } 56 EXPORT_SYMBOL(ath6kl_printk); 57 58 #ifdef CONFIG_ATH6KL_DEBUG 59 60 void ath6kl_dbg(enum ATH6K_DEBUG_MASK mask, const char *fmt, ...) 61 { 62 struct va_format vaf; 63 va_list args; 64 65 if (!(debug_mask & mask)) 66 return; 67 68 va_start(args, fmt); 69 70 vaf.fmt = fmt; 71 vaf.va = &args; 72 73 ath6kl_printk(KERN_DEBUG, "%pV", &vaf); 74 75 va_end(args); 76 } 77 EXPORT_SYMBOL(ath6kl_dbg); 78 79 void ath6kl_dbg_dump(enum ATH6K_DEBUG_MASK mask, 80 const char *msg, const char *prefix, 81 const void *buf, size_t len) 82 { 83 if (debug_mask & mask) { 84 if (msg) 85 ath6kl_dbg(mask, "%s\n", msg); 86 87 print_hex_dump_bytes(prefix, DUMP_PREFIX_OFFSET, buf, len); 88 } 89 } 90 EXPORT_SYMBOL(ath6kl_dbg_dump); 91 92 #define REG_OUTPUT_LEN_PER_LINE 25 93 #define REGTYPE_STR_LEN 100 94 95 struct ath6kl_diag_reg_info { 96 u32 reg_start; 97 u32 reg_end; 98 const char *reg_info; 99 }; 100 101 static const struct ath6kl_diag_reg_info diag_reg[] = { 102 { 0x20000, 0x200fc, "General DMA and Rx registers" }, 103 { 0x28000, 0x28900, "MAC PCU register & keycache" }, 104 { 0x20800, 0x20a40, "QCU" }, 105 { 0x21000, 0x212f0, "DCU" }, 106 { 0x4000, 0x42e4, "RTC" }, 107 { 0x540000, 0x540000 + (256 * 1024), "RAM" }, 108 { 0x29800, 0x2B210, "Base Band" }, 109 { 0x1C000, 0x1C748, "Analog" }, 110 }; 111 112 void ath6kl_dump_registers(struct ath6kl_device *dev, 113 struct ath6kl_irq_proc_registers *irq_proc_reg, 114 struct ath6kl_irq_enable_reg *irq_enable_reg) 115 { 116 117 ath6kl_dbg(ATH6KL_DBG_IRQ, ("<------- Register Table -------->\n")); 118 119 if (irq_proc_reg != NULL) { 120 ath6kl_dbg(ATH6KL_DBG_IRQ, 121 "Host Int status: 0x%x\n", 122 irq_proc_reg->host_int_status); 123 ath6kl_dbg(ATH6KL_DBG_IRQ, 124 "CPU Int status: 0x%x\n", 125 irq_proc_reg->cpu_int_status); 126 ath6kl_dbg(ATH6KL_DBG_IRQ, 127 "Error Int status: 0x%x\n", 128 irq_proc_reg->error_int_status); 129 ath6kl_dbg(ATH6KL_DBG_IRQ, 130 "Counter Int status: 0x%x\n", 131 irq_proc_reg->counter_int_status); 132 ath6kl_dbg(ATH6KL_DBG_IRQ, 133 "Mbox Frame: 0x%x\n", 134 irq_proc_reg->mbox_frame); 135 ath6kl_dbg(ATH6KL_DBG_IRQ, 136 "Rx Lookahead Valid: 0x%x\n", 137 irq_proc_reg->rx_lkahd_valid); 138 ath6kl_dbg(ATH6KL_DBG_IRQ, 139 "Rx Lookahead 0: 0x%x\n", 140 irq_proc_reg->rx_lkahd[0]); 141 ath6kl_dbg(ATH6KL_DBG_IRQ, 142 "Rx Lookahead 1: 0x%x\n", 143 irq_proc_reg->rx_lkahd[1]); 144 145 if (dev->ar->mbox_info.gmbox_addr != 0) { 146 /* 147 * If the target supports GMBOX hardware, dump some 148 * additional state. 149 */ 150 ath6kl_dbg(ATH6KL_DBG_IRQ, 151 "GMBOX Host Int status 2: 0x%x\n", 152 irq_proc_reg->host_int_status2); 153 ath6kl_dbg(ATH6KL_DBG_IRQ, 154 "GMBOX RX Avail: 0x%x\n", 155 irq_proc_reg->gmbox_rx_avail); 156 ath6kl_dbg(ATH6KL_DBG_IRQ, 157 "GMBOX lookahead alias 0: 0x%x\n", 158 irq_proc_reg->rx_gmbox_lkahd_alias[0]); 159 ath6kl_dbg(ATH6KL_DBG_IRQ, 160 "GMBOX lookahead alias 1: 0x%x\n", 161 irq_proc_reg->rx_gmbox_lkahd_alias[1]); 162 } 163 164 } 165 166 if (irq_enable_reg != NULL) { 167 ath6kl_dbg(ATH6KL_DBG_IRQ, 168 "Int status Enable: 0x%x\n", 169 irq_enable_reg->int_status_en); 170 ath6kl_dbg(ATH6KL_DBG_IRQ, "Counter Int status Enable: 0x%x\n", 171 irq_enable_reg->cntr_int_status_en); 172 } 173 ath6kl_dbg(ATH6KL_DBG_IRQ, "<------------------------------->\n"); 174 } 175 176 static void dump_cred_dist(struct htc_endpoint_credit_dist *ep_dist) 177 { 178 ath6kl_dbg(ATH6KL_DBG_CREDIT, 179 "--- endpoint: %d svc_id: 0x%X ---\n", 180 ep_dist->endpoint, ep_dist->svc_id); 181 ath6kl_dbg(ATH6KL_DBG_CREDIT, " dist_flags : 0x%X\n", 182 ep_dist->dist_flags); 183 ath6kl_dbg(ATH6KL_DBG_CREDIT, " cred_norm : %d\n", 184 ep_dist->cred_norm); 185 ath6kl_dbg(ATH6KL_DBG_CREDIT, " cred_min : %d\n", 186 ep_dist->cred_min); 187 ath6kl_dbg(ATH6KL_DBG_CREDIT, " credits : %d\n", 188 ep_dist->credits); 189 ath6kl_dbg(ATH6KL_DBG_CREDIT, " cred_assngd : %d\n", 190 ep_dist->cred_assngd); 191 ath6kl_dbg(ATH6KL_DBG_CREDIT, " seek_cred : %d\n", 192 ep_dist->seek_cred); 193 ath6kl_dbg(ATH6KL_DBG_CREDIT, " cred_sz : %d\n", 194 ep_dist->cred_sz); 195 ath6kl_dbg(ATH6KL_DBG_CREDIT, " cred_per_msg : %d\n", 196 ep_dist->cred_per_msg); 197 ath6kl_dbg(ATH6KL_DBG_CREDIT, " cred_to_dist : %d\n", 198 ep_dist->cred_to_dist); 199 ath6kl_dbg(ATH6KL_DBG_CREDIT, " txq_depth : %d\n", 200 get_queue_depth(&ep_dist->htc_ep->txq)); 201 ath6kl_dbg(ATH6KL_DBG_CREDIT, 202 "----------------------------------\n"); 203 } 204 205 /* FIXME: move to htc.c */ 206 void dump_cred_dist_stats(struct htc_target *target) 207 { 208 struct htc_endpoint_credit_dist *ep_list; 209 210 list_for_each_entry(ep_list, &target->cred_dist_list, list) 211 dump_cred_dist(ep_list); 212 213 ath6kl_dbg(ATH6KL_DBG_CREDIT, 214 "credit distribution total %d free %d\n", 215 target->credit_info->total_avail_credits, 216 target->credit_info->cur_free_credits); 217 } 218 219 static int ath6kl_debugfs_open(struct inode *inode, struct file *file) 220 { 221 file->private_data = inode->i_private; 222 return 0; 223 } 224 225 void ath6kl_debug_war(struct ath6kl *ar, enum ath6kl_war war) 226 { 227 switch (war) { 228 case ATH6KL_WAR_INVALID_RATE: 229 ar->debug.war_stats.invalid_rate++; 230 break; 231 } 232 } 233 234 static ssize_t read_file_war_stats(struct file *file, char __user *user_buf, 235 size_t count, loff_t *ppos) 236 { 237 struct ath6kl *ar = file->private_data; 238 char *buf; 239 unsigned int len = 0, buf_len = 1500; 240 ssize_t ret_cnt; 241 242 buf = kzalloc(buf_len, GFP_KERNEL); 243 if (!buf) 244 return -ENOMEM; 245 246 len += scnprintf(buf + len, buf_len - len, "\n"); 247 len += scnprintf(buf + len, buf_len - len, "%25s\n", 248 "Workaround stats"); 249 len += scnprintf(buf + len, buf_len - len, "%25s\n\n", 250 "================="); 251 len += scnprintf(buf + len, buf_len - len, "%20s %10u\n", 252 "Invalid rates", ar->debug.war_stats.invalid_rate); 253 254 if (WARN_ON(len > buf_len)) 255 len = buf_len; 256 257 ret_cnt = simple_read_from_buffer(user_buf, count, ppos, buf, len); 258 259 kfree(buf); 260 return ret_cnt; 261 } 262 263 static const struct file_operations fops_war_stats = { 264 .read = read_file_war_stats, 265 .open = ath6kl_debugfs_open, 266 .owner = THIS_MODULE, 267 .llseek = default_llseek, 268 }; 269 270 void ath6kl_debug_fwlog_event(struct ath6kl *ar, const void *buf, size_t len) 271 { 272 struct ath6kl_fwlog_slot *slot; 273 struct sk_buff *skb; 274 size_t slot_len; 275 276 if (WARN_ON(len > ATH6KL_FWLOG_PAYLOAD_SIZE)) 277 return; 278 279 slot_len = sizeof(*slot) + len; 280 281 skb = alloc_skb(slot_len, GFP_KERNEL); 282 if (!skb) 283 return; 284 285 slot = (struct ath6kl_fwlog_slot *) skb_put(skb, slot_len); 286 slot->timestamp = cpu_to_le32(jiffies); 287 slot->length = cpu_to_le32(len); 288 memcpy(slot->payload, buf, len); 289 290 spin_lock(&ar->debug.fwlog_queue.lock); 291 292 __skb_queue_tail(&ar->debug.fwlog_queue, skb); 293 complete(&ar->debug.fwlog_completion); 294 295 /* drop oldest entries */ 296 while (skb_queue_len(&ar->debug.fwlog_queue) > 297 ATH6KL_FWLOG_MAX_ENTRIES) { 298 skb = __skb_dequeue(&ar->debug.fwlog_queue); 299 kfree_skb(skb); 300 } 301 302 spin_unlock(&ar->debug.fwlog_queue.lock); 303 304 return; 305 } 306 307 static int ath6kl_fwlog_open(struct inode *inode, struct file *file) 308 { 309 struct ath6kl *ar = inode->i_private; 310 311 if (ar->debug.fwlog_open) 312 return -EBUSY; 313 314 ar->debug.fwlog_open = true; 315 316 file->private_data = inode->i_private; 317 return 0; 318 } 319 320 static int ath6kl_fwlog_release(struct inode *inode, struct file *file) 321 { 322 struct ath6kl *ar = inode->i_private; 323 324 ar->debug.fwlog_open = false; 325 326 return 0; 327 } 328 329 static ssize_t ath6kl_fwlog_read(struct file *file, char __user *user_buf, 330 size_t count, loff_t *ppos) 331 { 332 struct ath6kl *ar = file->private_data; 333 struct sk_buff *skb; 334 ssize_t ret_cnt; 335 size_t len = 0; 336 char *buf; 337 338 buf = vmalloc(count); 339 if (!buf) 340 return -ENOMEM; 341 342 /* read undelivered logs from firmware */ 343 ath6kl_read_fwlogs(ar); 344 345 spin_lock(&ar->debug.fwlog_queue.lock); 346 347 while ((skb = __skb_dequeue(&ar->debug.fwlog_queue))) { 348 if (skb->len > count - len) { 349 /* not enough space, put skb back and leave */ 350 __skb_queue_head(&ar->debug.fwlog_queue, skb); 351 break; 352 } 353 354 355 memcpy(buf + len, skb->data, skb->len); 356 len += skb->len; 357 358 kfree_skb(skb); 359 } 360 361 spin_unlock(&ar->debug.fwlog_queue.lock); 362 363 /* FIXME: what to do if len == 0? */ 364 365 ret_cnt = simple_read_from_buffer(user_buf, count, ppos, buf, len); 366 367 vfree(buf); 368 369 return ret_cnt; 370 } 371 372 static const struct file_operations fops_fwlog = { 373 .open = ath6kl_fwlog_open, 374 .release = ath6kl_fwlog_release, 375 .read = ath6kl_fwlog_read, 376 .owner = THIS_MODULE, 377 .llseek = default_llseek, 378 }; 379 380 static ssize_t ath6kl_fwlog_block_read(struct file *file, 381 char __user *user_buf, 382 size_t count, 383 loff_t *ppos) 384 { 385 struct ath6kl *ar = file->private_data; 386 struct sk_buff *skb; 387 ssize_t ret_cnt; 388 size_t len = 0, not_copied; 389 char *buf; 390 int ret; 391 392 buf = vmalloc(count); 393 if (!buf) 394 return -ENOMEM; 395 396 spin_lock(&ar->debug.fwlog_queue.lock); 397 398 if (skb_queue_len(&ar->debug.fwlog_queue) == 0) { 399 /* we must init under queue lock */ 400 init_completion(&ar->debug.fwlog_completion); 401 402 spin_unlock(&ar->debug.fwlog_queue.lock); 403 404 ret = wait_for_completion_interruptible( 405 &ar->debug.fwlog_completion); 406 if (ret == -ERESTARTSYS) 407 return ret; 408 409 spin_lock(&ar->debug.fwlog_queue.lock); 410 } 411 412 while ((skb = __skb_dequeue(&ar->debug.fwlog_queue))) { 413 if (skb->len > count - len) { 414 /* not enough space, put skb back and leave */ 415 __skb_queue_head(&ar->debug.fwlog_queue, skb); 416 break; 417 } 418 419 420 memcpy(buf + len, skb->data, skb->len); 421 len += skb->len; 422 423 kfree_skb(skb); 424 } 425 426 spin_unlock(&ar->debug.fwlog_queue.lock); 427 428 /* FIXME: what to do if len == 0? */ 429 430 not_copied = copy_to_user(user_buf, buf, len); 431 if (not_copied != 0) { 432 ret_cnt = -EFAULT; 433 goto out; 434 } 435 436 *ppos = *ppos + len; 437 438 ret_cnt = len; 439 440 out: 441 vfree(buf); 442 443 return ret_cnt; 444 } 445 446 static const struct file_operations fops_fwlog_block = { 447 .open = ath6kl_fwlog_open, 448 .release = ath6kl_fwlog_release, 449 .read = ath6kl_fwlog_block_read, 450 .owner = THIS_MODULE, 451 .llseek = default_llseek, 452 }; 453 454 static ssize_t ath6kl_fwlog_mask_read(struct file *file, char __user *user_buf, 455 size_t count, loff_t *ppos) 456 { 457 struct ath6kl *ar = file->private_data; 458 char buf[16]; 459 int len; 460 461 len = snprintf(buf, sizeof(buf), "0x%x\n", ar->debug.fwlog_mask); 462 463 return simple_read_from_buffer(user_buf, count, ppos, buf, len); 464 } 465 466 static ssize_t ath6kl_fwlog_mask_write(struct file *file, 467 const char __user *user_buf, 468 size_t count, loff_t *ppos) 469 { 470 struct ath6kl *ar = file->private_data; 471 int ret; 472 473 ret = kstrtou32_from_user(user_buf, count, 0, &ar->debug.fwlog_mask); 474 if (ret) 475 return ret; 476 477 ret = ath6kl_wmi_config_debug_module_cmd(ar->wmi, 478 ATH6KL_FWLOG_VALID_MASK, 479 ar->debug.fwlog_mask); 480 if (ret) 481 return ret; 482 483 return count; 484 } 485 486 static const struct file_operations fops_fwlog_mask = { 487 .open = ath6kl_debugfs_open, 488 .read = ath6kl_fwlog_mask_read, 489 .write = ath6kl_fwlog_mask_write, 490 .owner = THIS_MODULE, 491 .llseek = default_llseek, 492 }; 493 494 static ssize_t read_file_tgt_stats(struct file *file, char __user *user_buf, 495 size_t count, loff_t *ppos) 496 { 497 struct ath6kl *ar = file->private_data; 498 struct ath6kl_vif *vif; 499 struct target_stats *tgt_stats; 500 char *buf; 501 unsigned int len = 0, buf_len = 1500; 502 int i; 503 long left; 504 ssize_t ret_cnt; 505 506 vif = ath6kl_vif_first(ar); 507 if (!vif) 508 return -EIO; 509 510 tgt_stats = &vif->target_stats; 511 512 buf = kzalloc(buf_len, GFP_KERNEL); 513 if (!buf) 514 return -ENOMEM; 515 516 if (down_interruptible(&ar->sem)) { 517 kfree(buf); 518 return -EBUSY; 519 } 520 521 set_bit(STATS_UPDATE_PEND, &vif->flags); 522 523 if (ath6kl_wmi_get_stats_cmd(ar->wmi, 0)) { 524 up(&ar->sem); 525 kfree(buf); 526 return -EIO; 527 } 528 529 left = wait_event_interruptible_timeout(ar->event_wq, 530 !test_bit(STATS_UPDATE_PEND, 531 &vif->flags), WMI_TIMEOUT); 532 533 up(&ar->sem); 534 535 if (left <= 0) { 536 kfree(buf); 537 return -ETIMEDOUT; 538 } 539 540 len += scnprintf(buf + len, buf_len - len, "\n"); 541 len += scnprintf(buf + len, buf_len - len, "%25s\n", 542 "Target Tx stats"); 543 len += scnprintf(buf + len, buf_len - len, "%25s\n\n", 544 "================="); 545 len += scnprintf(buf + len, buf_len - len, "%20s %10llu\n", 546 "Ucast packets", tgt_stats->tx_ucast_pkt); 547 len += scnprintf(buf + len, buf_len - len, "%20s %10llu\n", 548 "Bcast packets", tgt_stats->tx_bcast_pkt); 549 len += scnprintf(buf + len, buf_len - len, "%20s %10llu\n", 550 "Ucast byte", tgt_stats->tx_ucast_byte); 551 len += scnprintf(buf + len, buf_len - len, "%20s %10llu\n", 552 "Bcast byte", tgt_stats->tx_bcast_byte); 553 len += scnprintf(buf + len, buf_len - len, "%20s %10llu\n", 554 "Rts success cnt", tgt_stats->tx_rts_success_cnt); 555 for (i = 0; i < 4; i++) 556 len += scnprintf(buf + len, buf_len - len, 557 "%18s %d %10llu\n", "PER on ac", 558 i, tgt_stats->tx_pkt_per_ac[i]); 559 len += scnprintf(buf + len, buf_len - len, "%20s %10llu\n", 560 "Error", tgt_stats->tx_err); 561 len += scnprintf(buf + len, buf_len - len, "%20s %10llu\n", 562 "Fail count", tgt_stats->tx_fail_cnt); 563 len += scnprintf(buf + len, buf_len - len, "%20s %10llu\n", 564 "Retry count", tgt_stats->tx_retry_cnt); 565 len += scnprintf(buf + len, buf_len - len, "%20s %10llu\n", 566 "Multi retry cnt", tgt_stats->tx_mult_retry_cnt); 567 len += scnprintf(buf + len, buf_len - len, "%20s %10llu\n", 568 "Rts fail cnt", tgt_stats->tx_rts_fail_cnt); 569 len += scnprintf(buf + len, buf_len - len, "%25s %10llu\n\n", 570 "TKIP counter measure used", 571 tgt_stats->tkip_cnter_measures_invoked); 572 573 len += scnprintf(buf + len, buf_len - len, "%25s\n", 574 "Target Rx stats"); 575 len += scnprintf(buf + len, buf_len - len, "%25s\n", 576 "================="); 577 578 len += scnprintf(buf + len, buf_len - len, "%20s %10llu\n", 579 "Ucast packets", tgt_stats->rx_ucast_pkt); 580 len += scnprintf(buf + len, buf_len - len, "%20s %10d\n", 581 "Ucast Rate", tgt_stats->rx_ucast_rate); 582 len += scnprintf(buf + len, buf_len - len, "%20s %10llu\n", 583 "Bcast packets", tgt_stats->rx_bcast_pkt); 584 len += scnprintf(buf + len, buf_len - len, "%20s %10llu\n", 585 "Ucast byte", tgt_stats->rx_ucast_byte); 586 len += scnprintf(buf + len, buf_len - len, "%20s %10llu\n", 587 "Bcast byte", tgt_stats->rx_bcast_byte); 588 len += scnprintf(buf + len, buf_len - len, "%20s %10llu\n", 589 "Fragmented pkt", tgt_stats->rx_frgment_pkt); 590 len += scnprintf(buf + len, buf_len - len, "%20s %10llu\n", 591 "Error", tgt_stats->rx_err); 592 len += scnprintf(buf + len, buf_len - len, "%20s %10llu\n", 593 "CRC Err", tgt_stats->rx_crc_err); 594 len += scnprintf(buf + len, buf_len - len, "%20s %10llu\n", 595 "Key chache miss", tgt_stats->rx_key_cache_miss); 596 len += scnprintf(buf + len, buf_len - len, "%20s %10llu\n", 597 "Decrypt Err", tgt_stats->rx_decrypt_err); 598 len += scnprintf(buf + len, buf_len - len, "%20s %10llu\n", 599 "Duplicate frame", tgt_stats->rx_dupl_frame); 600 len += scnprintf(buf + len, buf_len - len, "%20s %10llu\n", 601 "Tkip Mic failure", tgt_stats->tkip_local_mic_fail); 602 len += scnprintf(buf + len, buf_len - len, "%20s %10llu\n", 603 "TKIP format err", tgt_stats->tkip_fmt_err); 604 len += scnprintf(buf + len, buf_len - len, "%20s %10llu\n", 605 "CCMP format Err", tgt_stats->ccmp_fmt_err); 606 len += scnprintf(buf + len, buf_len - len, "%20s %10llu\n\n", 607 "CCMP Replay Err", tgt_stats->ccmp_replays); 608 609 len += scnprintf(buf + len, buf_len - len, "%25s\n", 610 "Misc Target stats"); 611 len += scnprintf(buf + len, buf_len - len, "%25s\n", 612 "================="); 613 len += scnprintf(buf + len, buf_len - len, "%20s %10llu\n", 614 "Beacon Miss count", tgt_stats->cs_bmiss_cnt); 615 len += scnprintf(buf + len, buf_len - len, "%20s %10llu\n", 616 "Num Connects", tgt_stats->cs_connect_cnt); 617 len += scnprintf(buf + len, buf_len - len, "%20s %10llu\n", 618 "Num disconnects", tgt_stats->cs_discon_cnt); 619 len += scnprintf(buf + len, buf_len - len, "%20s %10d\n", 620 "Beacon avg rssi", tgt_stats->cs_ave_beacon_rssi); 621 622 if (len > buf_len) 623 len = buf_len; 624 625 ret_cnt = simple_read_from_buffer(user_buf, count, ppos, buf, len); 626 627 kfree(buf); 628 return ret_cnt; 629 } 630 631 static const struct file_operations fops_tgt_stats = { 632 .read = read_file_tgt_stats, 633 .open = ath6kl_debugfs_open, 634 .owner = THIS_MODULE, 635 .llseek = default_llseek, 636 }; 637 638 #define print_credit_info(fmt_str, ep_list_field) \ 639 (len += scnprintf(buf + len, buf_len - len, fmt_str, \ 640 ep_list->ep_list_field)) 641 #define CREDIT_INFO_DISPLAY_STRING_LEN 200 642 #define CREDIT_INFO_LEN 128 643 644 static ssize_t read_file_credit_dist_stats(struct file *file, 645 char __user *user_buf, 646 size_t count, loff_t *ppos) 647 { 648 struct ath6kl *ar = file->private_data; 649 struct htc_target *target = ar->htc_target; 650 struct htc_endpoint_credit_dist *ep_list; 651 char *buf; 652 unsigned int buf_len, len = 0; 653 ssize_t ret_cnt; 654 655 buf_len = CREDIT_INFO_DISPLAY_STRING_LEN + 656 get_queue_depth(&target->cred_dist_list) * CREDIT_INFO_LEN; 657 buf = kzalloc(buf_len, GFP_KERNEL); 658 if (!buf) 659 return -ENOMEM; 660 661 len += scnprintf(buf + len, buf_len - len, "%25s%5d\n", 662 "Total Avail Credits: ", 663 target->credit_info->total_avail_credits); 664 len += scnprintf(buf + len, buf_len - len, "%25s%5d\n", 665 "Free credits :", 666 target->credit_info->cur_free_credits); 667 668 len += scnprintf(buf + len, buf_len - len, 669 " Epid Flags Cred_norm Cred_min Credits Cred_assngd" 670 " Seek_cred Cred_sz Cred_per_msg Cred_to_dist" 671 " qdepth\n"); 672 673 list_for_each_entry(ep_list, &target->cred_dist_list, list) { 674 print_credit_info(" %2d", endpoint); 675 print_credit_info("%10x", dist_flags); 676 print_credit_info("%8d", cred_norm); 677 print_credit_info("%9d", cred_min); 678 print_credit_info("%9d", credits); 679 print_credit_info("%10d", cred_assngd); 680 print_credit_info("%13d", seek_cred); 681 print_credit_info("%12d", cred_sz); 682 print_credit_info("%9d", cred_per_msg); 683 print_credit_info("%14d", cred_to_dist); 684 len += scnprintf(buf + len, buf_len - len, "%12d\n", 685 get_queue_depth(&ep_list->htc_ep->txq)); 686 } 687 688 if (len > buf_len) 689 len = buf_len; 690 691 ret_cnt = simple_read_from_buffer(user_buf, count, ppos, buf, len); 692 kfree(buf); 693 return ret_cnt; 694 } 695 696 static const struct file_operations fops_credit_dist_stats = { 697 .read = read_file_credit_dist_stats, 698 .open = ath6kl_debugfs_open, 699 .owner = THIS_MODULE, 700 .llseek = default_llseek, 701 }; 702 703 static unsigned int print_endpoint_stat(struct htc_target *target, char *buf, 704 unsigned int buf_len, unsigned int len, 705 int offset, const char *name) 706 { 707 int i; 708 struct htc_endpoint_stats *ep_st; 709 u32 *counter; 710 711 len += scnprintf(buf + len, buf_len - len, "%s:", name); 712 for (i = 0; i < ENDPOINT_MAX; i++) { 713 ep_st = &target->endpoint[i].ep_st; 714 counter = ((u32 *) ep_st) + (offset / 4); 715 len += scnprintf(buf + len, buf_len - len, " %u", *counter); 716 } 717 len += scnprintf(buf + len, buf_len - len, "\n"); 718 719 return len; 720 } 721 722 static ssize_t ath6kl_endpoint_stats_read(struct file *file, 723 char __user *user_buf, 724 size_t count, loff_t *ppos) 725 { 726 struct ath6kl *ar = file->private_data; 727 struct htc_target *target = ar->htc_target; 728 char *buf; 729 unsigned int buf_len, len = 0; 730 ssize_t ret_cnt; 731 732 buf_len = sizeof(struct htc_endpoint_stats) / sizeof(u32) * 733 (25 + ENDPOINT_MAX * 11); 734 buf = kmalloc(buf_len, GFP_KERNEL); 735 if (!buf) 736 return -ENOMEM; 737 738 #define EPSTAT(name) \ 739 len = print_endpoint_stat(target, buf, buf_len, len, \ 740 offsetof(struct htc_endpoint_stats, name), \ 741 #name) 742 EPSTAT(cred_low_indicate); 743 EPSTAT(tx_issued); 744 EPSTAT(tx_pkt_bundled); 745 EPSTAT(tx_bundles); 746 EPSTAT(tx_dropped); 747 EPSTAT(tx_cred_rpt); 748 EPSTAT(cred_rpt_from_rx); 749 EPSTAT(cred_rpt_from_other); 750 EPSTAT(cred_rpt_ep0); 751 EPSTAT(cred_from_rx); 752 EPSTAT(cred_from_other); 753 EPSTAT(cred_from_ep0); 754 EPSTAT(cred_cosumd); 755 EPSTAT(cred_retnd); 756 EPSTAT(rx_pkts); 757 EPSTAT(rx_lkahds); 758 EPSTAT(rx_bundl); 759 EPSTAT(rx_bundle_lkahd); 760 EPSTAT(rx_bundle_from_hdr); 761 EPSTAT(rx_alloc_thresh_hit); 762 EPSTAT(rxalloc_thresh_byte); 763 #undef EPSTAT 764 765 if (len > buf_len) 766 len = buf_len; 767 768 ret_cnt = simple_read_from_buffer(user_buf, count, ppos, buf, len); 769 kfree(buf); 770 return ret_cnt; 771 } 772 773 static ssize_t ath6kl_endpoint_stats_write(struct file *file, 774 const char __user *user_buf, 775 size_t count, loff_t *ppos) 776 { 777 struct ath6kl *ar = file->private_data; 778 struct htc_target *target = ar->htc_target; 779 int ret, i; 780 u32 val; 781 struct htc_endpoint_stats *ep_st; 782 783 ret = kstrtou32_from_user(user_buf, count, 0, &val); 784 if (ret) 785 return ret; 786 if (val == 0) { 787 for (i = 0; i < ENDPOINT_MAX; i++) { 788 ep_st = &target->endpoint[i].ep_st; 789 memset(ep_st, 0, sizeof(*ep_st)); 790 } 791 } 792 793 return count; 794 } 795 796 static const struct file_operations fops_endpoint_stats = { 797 .open = ath6kl_debugfs_open, 798 .read = ath6kl_endpoint_stats_read, 799 .write = ath6kl_endpoint_stats_write, 800 .owner = THIS_MODULE, 801 .llseek = default_llseek, 802 }; 803 804 static unsigned long ath6kl_get_num_reg(void) 805 { 806 int i; 807 unsigned long n_reg = 0; 808 809 for (i = 0; i < ARRAY_SIZE(diag_reg); i++) 810 n_reg = n_reg + 811 (diag_reg[i].reg_end - diag_reg[i].reg_start) / 4 + 1; 812 813 return n_reg; 814 } 815 816 static bool ath6kl_dbg_is_diag_reg_valid(u32 reg_addr) 817 { 818 int i; 819 820 for (i = 0; i < ARRAY_SIZE(diag_reg); i++) { 821 if (reg_addr >= diag_reg[i].reg_start && 822 reg_addr <= diag_reg[i].reg_end) 823 return true; 824 } 825 826 return false; 827 } 828 829 static ssize_t ath6kl_regread_read(struct file *file, char __user *user_buf, 830 size_t count, loff_t *ppos) 831 { 832 struct ath6kl *ar = file->private_data; 833 u8 buf[50]; 834 unsigned int len = 0; 835 836 if (ar->debug.dbgfs_diag_reg) 837 len += scnprintf(buf + len, sizeof(buf) - len, "0x%x\n", 838 ar->debug.dbgfs_diag_reg); 839 else 840 len += scnprintf(buf + len, sizeof(buf) - len, 841 "All diag registers\n"); 842 843 return simple_read_from_buffer(user_buf, count, ppos, buf, len); 844 } 845 846 static ssize_t ath6kl_regread_write(struct file *file, 847 const char __user *user_buf, 848 size_t count, loff_t *ppos) 849 { 850 struct ath6kl *ar = file->private_data; 851 u8 buf[50]; 852 unsigned int len; 853 unsigned long reg_addr; 854 855 len = min(count, sizeof(buf) - 1); 856 if (copy_from_user(buf, user_buf, len)) 857 return -EFAULT; 858 859 buf[len] = '\0'; 860 861 if (strict_strtoul(buf, 0, ®_addr)) 862 return -EINVAL; 863 864 if ((reg_addr % 4) != 0) 865 return -EINVAL; 866 867 if (reg_addr && !ath6kl_dbg_is_diag_reg_valid(reg_addr)) 868 return -EINVAL; 869 870 ar->debug.dbgfs_diag_reg = reg_addr; 871 872 return count; 873 } 874 875 static const struct file_operations fops_diag_reg_read = { 876 .read = ath6kl_regread_read, 877 .write = ath6kl_regread_write, 878 .open = ath6kl_debugfs_open, 879 .owner = THIS_MODULE, 880 .llseek = default_llseek, 881 }; 882 883 static int ath6kl_regdump_open(struct inode *inode, struct file *file) 884 { 885 struct ath6kl *ar = inode->i_private; 886 u8 *buf; 887 unsigned long int reg_len; 888 unsigned int len = 0, n_reg; 889 u32 addr; 890 __le32 reg_val; 891 int i, status; 892 893 /* Dump all the registers if no register is specified */ 894 if (!ar->debug.dbgfs_diag_reg) 895 n_reg = ath6kl_get_num_reg(); 896 else 897 n_reg = 1; 898 899 reg_len = n_reg * REG_OUTPUT_LEN_PER_LINE; 900 if (n_reg > 1) 901 reg_len += REGTYPE_STR_LEN; 902 903 buf = vmalloc(reg_len); 904 if (!buf) 905 return -ENOMEM; 906 907 if (n_reg == 1) { 908 addr = ar->debug.dbgfs_diag_reg; 909 910 status = ath6kl_diag_read32(ar, 911 TARG_VTOP(ar->target_type, addr), 912 (u32 *)®_val); 913 if (status) 914 goto fail_reg_read; 915 916 len += scnprintf(buf + len, reg_len - len, 917 "0x%06x 0x%08x\n", addr, le32_to_cpu(reg_val)); 918 goto done; 919 } 920 921 for (i = 0; i < ARRAY_SIZE(diag_reg); i++) { 922 len += scnprintf(buf + len, reg_len - len, 923 "%s\n", diag_reg[i].reg_info); 924 for (addr = diag_reg[i].reg_start; 925 addr <= diag_reg[i].reg_end; addr += 4) { 926 status = ath6kl_diag_read32(ar, 927 TARG_VTOP(ar->target_type, addr), 928 (u32 *)®_val); 929 if (status) 930 goto fail_reg_read; 931 932 len += scnprintf(buf + len, reg_len - len, 933 "0x%06x 0x%08x\n", 934 addr, le32_to_cpu(reg_val)); 935 } 936 } 937 938 done: 939 file->private_data = buf; 940 return 0; 941 942 fail_reg_read: 943 ath6kl_warn("Unable to read memory:%u\n", addr); 944 vfree(buf); 945 return -EIO; 946 } 947 948 static ssize_t ath6kl_regdump_read(struct file *file, char __user *user_buf, 949 size_t count, loff_t *ppos) 950 { 951 u8 *buf = file->private_data; 952 return simple_read_from_buffer(user_buf, count, ppos, buf, strlen(buf)); 953 } 954 955 static int ath6kl_regdump_release(struct inode *inode, struct file *file) 956 { 957 vfree(file->private_data); 958 return 0; 959 } 960 961 static const struct file_operations fops_reg_dump = { 962 .open = ath6kl_regdump_open, 963 .read = ath6kl_regdump_read, 964 .release = ath6kl_regdump_release, 965 .owner = THIS_MODULE, 966 .llseek = default_llseek, 967 }; 968 969 static ssize_t ath6kl_lrssi_roam_write(struct file *file, 970 const char __user *user_buf, 971 size_t count, loff_t *ppos) 972 { 973 struct ath6kl *ar = file->private_data; 974 unsigned long lrssi_roam_threshold; 975 char buf[32]; 976 ssize_t len; 977 978 len = min(count, sizeof(buf) - 1); 979 if (copy_from_user(buf, user_buf, len)) 980 return -EFAULT; 981 982 buf[len] = '\0'; 983 if (strict_strtoul(buf, 0, &lrssi_roam_threshold)) 984 return -EINVAL; 985 986 ar->lrssi_roam_threshold = lrssi_roam_threshold; 987 988 ath6kl_wmi_set_roam_lrssi_cmd(ar->wmi, ar->lrssi_roam_threshold); 989 990 return count; 991 } 992 993 static ssize_t ath6kl_lrssi_roam_read(struct file *file, 994 char __user *user_buf, 995 size_t count, loff_t *ppos) 996 { 997 struct ath6kl *ar = file->private_data; 998 char buf[32]; 999 unsigned int len; 1000 1001 len = snprintf(buf, sizeof(buf), "%u\n", ar->lrssi_roam_threshold); 1002 1003 return simple_read_from_buffer(user_buf, count, ppos, buf, len); 1004 } 1005 1006 static const struct file_operations fops_lrssi_roam_threshold = { 1007 .read = ath6kl_lrssi_roam_read, 1008 .write = ath6kl_lrssi_roam_write, 1009 .open = ath6kl_debugfs_open, 1010 .owner = THIS_MODULE, 1011 .llseek = default_llseek, 1012 }; 1013 1014 static ssize_t ath6kl_regwrite_read(struct file *file, 1015 char __user *user_buf, 1016 size_t count, loff_t *ppos) 1017 { 1018 struct ath6kl *ar = file->private_data; 1019 u8 buf[32]; 1020 unsigned int len = 0; 1021 1022 len = scnprintf(buf, sizeof(buf), "Addr: 0x%x Val: 0x%x\n", 1023 ar->debug.diag_reg_addr_wr, ar->debug.diag_reg_val_wr); 1024 1025 return simple_read_from_buffer(user_buf, count, ppos, buf, len); 1026 } 1027 1028 static ssize_t ath6kl_regwrite_write(struct file *file, 1029 const char __user *user_buf, 1030 size_t count, loff_t *ppos) 1031 { 1032 struct ath6kl *ar = file->private_data; 1033 char buf[32]; 1034 char *sptr, *token; 1035 unsigned int len = 0; 1036 u32 reg_addr, reg_val; 1037 1038 len = min(count, sizeof(buf) - 1); 1039 if (copy_from_user(buf, user_buf, len)) 1040 return -EFAULT; 1041 1042 buf[len] = '\0'; 1043 sptr = buf; 1044 1045 token = strsep(&sptr, "="); 1046 if (!token) 1047 return -EINVAL; 1048 1049 if (kstrtou32(token, 0, ®_addr)) 1050 return -EINVAL; 1051 1052 if (!ath6kl_dbg_is_diag_reg_valid(reg_addr)) 1053 return -EINVAL; 1054 1055 if (kstrtou32(sptr, 0, ®_val)) 1056 return -EINVAL; 1057 1058 ar->debug.diag_reg_addr_wr = reg_addr; 1059 ar->debug.diag_reg_val_wr = reg_val; 1060 1061 if (ath6kl_diag_write32(ar, ar->debug.diag_reg_addr_wr, 1062 cpu_to_le32(ar->debug.diag_reg_val_wr))) 1063 return -EIO; 1064 1065 return count; 1066 } 1067 1068 static const struct file_operations fops_diag_reg_write = { 1069 .read = ath6kl_regwrite_read, 1070 .write = ath6kl_regwrite_write, 1071 .open = ath6kl_debugfs_open, 1072 .owner = THIS_MODULE, 1073 .llseek = default_llseek, 1074 }; 1075 1076 int ath6kl_debug_roam_tbl_event(struct ath6kl *ar, const void *buf, 1077 size_t len) 1078 { 1079 const struct wmi_target_roam_tbl *tbl; 1080 u16 num_entries; 1081 1082 if (len < sizeof(*tbl)) 1083 return -EINVAL; 1084 1085 tbl = (const struct wmi_target_roam_tbl *) buf; 1086 num_entries = le16_to_cpu(tbl->num_entries); 1087 if (sizeof(*tbl) + num_entries * sizeof(struct wmi_bss_roam_info) > 1088 len) 1089 return -EINVAL; 1090 1091 if (ar->debug.roam_tbl == NULL || 1092 ar->debug.roam_tbl_len < (unsigned int) len) { 1093 kfree(ar->debug.roam_tbl); 1094 ar->debug.roam_tbl = kmalloc(len, GFP_ATOMIC); 1095 if (ar->debug.roam_tbl == NULL) 1096 return -ENOMEM; 1097 } 1098 1099 memcpy(ar->debug.roam_tbl, buf, len); 1100 ar->debug.roam_tbl_len = len; 1101 1102 if (test_bit(ROAM_TBL_PEND, &ar->flag)) { 1103 clear_bit(ROAM_TBL_PEND, &ar->flag); 1104 wake_up(&ar->event_wq); 1105 } 1106 1107 return 0; 1108 } 1109 1110 static ssize_t ath6kl_roam_table_read(struct file *file, char __user *user_buf, 1111 size_t count, loff_t *ppos) 1112 { 1113 struct ath6kl *ar = file->private_data; 1114 int ret; 1115 long left; 1116 struct wmi_target_roam_tbl *tbl; 1117 u16 num_entries, i; 1118 char *buf; 1119 unsigned int len, buf_len; 1120 ssize_t ret_cnt; 1121 1122 if (down_interruptible(&ar->sem)) 1123 return -EBUSY; 1124 1125 set_bit(ROAM_TBL_PEND, &ar->flag); 1126 1127 ret = ath6kl_wmi_get_roam_tbl_cmd(ar->wmi); 1128 if (ret) { 1129 up(&ar->sem); 1130 return ret; 1131 } 1132 1133 left = wait_event_interruptible_timeout( 1134 ar->event_wq, !test_bit(ROAM_TBL_PEND, &ar->flag), WMI_TIMEOUT); 1135 up(&ar->sem); 1136 1137 if (left <= 0) 1138 return -ETIMEDOUT; 1139 1140 if (ar->debug.roam_tbl == NULL) 1141 return -ENOMEM; 1142 1143 tbl = (struct wmi_target_roam_tbl *) ar->debug.roam_tbl; 1144 num_entries = le16_to_cpu(tbl->num_entries); 1145 1146 buf_len = 100 + num_entries * 100; 1147 buf = kzalloc(buf_len, GFP_KERNEL); 1148 if (buf == NULL) 1149 return -ENOMEM; 1150 len = 0; 1151 len += scnprintf(buf + len, buf_len - len, 1152 "roam_mode=%u\n\n" 1153 "# roam_util bssid rssi rssidt last_rssi util bias\n", 1154 le16_to_cpu(tbl->roam_mode)); 1155 1156 for (i = 0; i < num_entries; i++) { 1157 struct wmi_bss_roam_info *info = &tbl->info[i]; 1158 len += scnprintf(buf + len, buf_len - len, 1159 "%d %pM %d %d %d %d %d\n", 1160 a_sle32_to_cpu(info->roam_util), info->bssid, 1161 info->rssi, info->rssidt, info->last_rssi, 1162 info->util, info->bias); 1163 } 1164 1165 if (len > buf_len) 1166 len = buf_len; 1167 1168 ret_cnt = simple_read_from_buffer(user_buf, count, ppos, buf, len); 1169 1170 kfree(buf); 1171 return ret_cnt; 1172 } 1173 1174 static const struct file_operations fops_roam_table = { 1175 .read = ath6kl_roam_table_read, 1176 .open = ath6kl_debugfs_open, 1177 .owner = THIS_MODULE, 1178 .llseek = default_llseek, 1179 }; 1180 1181 static ssize_t ath6kl_force_roam_write(struct file *file, 1182 const char __user *user_buf, 1183 size_t count, loff_t *ppos) 1184 { 1185 struct ath6kl *ar = file->private_data; 1186 int ret; 1187 char buf[20]; 1188 size_t len; 1189 u8 bssid[ETH_ALEN]; 1190 int i; 1191 int addr[ETH_ALEN]; 1192 1193 len = min(count, sizeof(buf) - 1); 1194 if (copy_from_user(buf, user_buf, len)) 1195 return -EFAULT; 1196 buf[len] = '\0'; 1197 1198 if (sscanf(buf, "%02x:%02x:%02x:%02x:%02x:%02x", 1199 &addr[0], &addr[1], &addr[2], &addr[3], &addr[4], &addr[5]) 1200 != ETH_ALEN) 1201 return -EINVAL; 1202 for (i = 0; i < ETH_ALEN; i++) 1203 bssid[i] = addr[i]; 1204 1205 ret = ath6kl_wmi_force_roam_cmd(ar->wmi, bssid); 1206 if (ret) 1207 return ret; 1208 1209 return count; 1210 } 1211 1212 static const struct file_operations fops_force_roam = { 1213 .write = ath6kl_force_roam_write, 1214 .open = ath6kl_debugfs_open, 1215 .owner = THIS_MODULE, 1216 .llseek = default_llseek, 1217 }; 1218 1219 static ssize_t ath6kl_roam_mode_write(struct file *file, 1220 const char __user *user_buf, 1221 size_t count, loff_t *ppos) 1222 { 1223 struct ath6kl *ar = file->private_data; 1224 int ret; 1225 char buf[20]; 1226 size_t len; 1227 enum wmi_roam_mode mode; 1228 1229 len = min(count, sizeof(buf) - 1); 1230 if (copy_from_user(buf, user_buf, len)) 1231 return -EFAULT; 1232 buf[len] = '\0'; 1233 if (len > 0 && buf[len - 1] == '\n') 1234 buf[len - 1] = '\0'; 1235 1236 if (strcasecmp(buf, "default") == 0) 1237 mode = WMI_DEFAULT_ROAM_MODE; 1238 else if (strcasecmp(buf, "bssbias") == 0) 1239 mode = WMI_HOST_BIAS_ROAM_MODE; 1240 else if (strcasecmp(buf, "lock") == 0) 1241 mode = WMI_LOCK_BSS_MODE; 1242 else 1243 return -EINVAL; 1244 1245 ret = ath6kl_wmi_set_roam_mode_cmd(ar->wmi, mode); 1246 if (ret) 1247 return ret; 1248 1249 return count; 1250 } 1251 1252 static const struct file_operations fops_roam_mode = { 1253 .write = ath6kl_roam_mode_write, 1254 .open = ath6kl_debugfs_open, 1255 .owner = THIS_MODULE, 1256 .llseek = default_llseek, 1257 }; 1258 1259 void ath6kl_debug_set_keepalive(struct ath6kl *ar, u8 keepalive) 1260 { 1261 ar->debug.keepalive = keepalive; 1262 } 1263 1264 static ssize_t ath6kl_keepalive_read(struct file *file, char __user *user_buf, 1265 size_t count, loff_t *ppos) 1266 { 1267 struct ath6kl *ar = file->private_data; 1268 char buf[16]; 1269 int len; 1270 1271 len = snprintf(buf, sizeof(buf), "%u\n", ar->debug.keepalive); 1272 1273 return simple_read_from_buffer(user_buf, count, ppos, buf, len); 1274 } 1275 1276 static ssize_t ath6kl_keepalive_write(struct file *file, 1277 const char __user *user_buf, 1278 size_t count, loff_t *ppos) 1279 { 1280 struct ath6kl *ar = file->private_data; 1281 int ret; 1282 u8 val; 1283 1284 ret = kstrtou8_from_user(user_buf, count, 0, &val); 1285 if (ret) 1286 return ret; 1287 1288 ret = ath6kl_wmi_set_keepalive_cmd(ar->wmi, 0, val); 1289 if (ret) 1290 return ret; 1291 1292 return count; 1293 } 1294 1295 static const struct file_operations fops_keepalive = { 1296 .open = ath6kl_debugfs_open, 1297 .read = ath6kl_keepalive_read, 1298 .write = ath6kl_keepalive_write, 1299 .owner = THIS_MODULE, 1300 .llseek = default_llseek, 1301 }; 1302 1303 void ath6kl_debug_set_disconnect_timeout(struct ath6kl *ar, u8 timeout) 1304 { 1305 ar->debug.disc_timeout = timeout; 1306 } 1307 1308 static ssize_t ath6kl_disconnect_timeout_read(struct file *file, 1309 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.disc_timeout); 1317 1318 return simple_read_from_buffer(user_buf, count, ppos, buf, len); 1319 } 1320 1321 static ssize_t ath6kl_disconnect_timeout_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_disctimeout_cmd(ar->wmi, 0, val); 1334 if (ret) 1335 return ret; 1336 1337 return count; 1338 } 1339 1340 static const struct file_operations fops_disconnect_timeout = { 1341 .open = ath6kl_debugfs_open, 1342 .read = ath6kl_disconnect_timeout_read, 1343 .write = ath6kl_disconnect_timeout_write, 1344 .owner = THIS_MODULE, 1345 .llseek = default_llseek, 1346 }; 1347 1348 static ssize_t ath6kl_create_qos_write(struct file *file, 1349 const char __user *user_buf, 1350 size_t count, loff_t *ppos) 1351 { 1352 1353 struct ath6kl *ar = file->private_data; 1354 struct ath6kl_vif *vif; 1355 char buf[200]; 1356 ssize_t len; 1357 char *sptr, *token; 1358 struct wmi_create_pstream_cmd pstream; 1359 u32 val32; 1360 u16 val16; 1361 1362 vif = ath6kl_vif_first(ar); 1363 if (!vif) 1364 return -EIO; 1365 1366 len = min(count, sizeof(buf) - 1); 1367 if (copy_from_user(buf, user_buf, len)) 1368 return -EFAULT; 1369 buf[len] = '\0'; 1370 sptr = buf; 1371 1372 token = strsep(&sptr, " "); 1373 if (!token) 1374 return -EINVAL; 1375 if (kstrtou8(token, 0, &pstream.user_pri)) 1376 return -EINVAL; 1377 1378 token = strsep(&sptr, " "); 1379 if (!token) 1380 return -EINVAL; 1381 if (kstrtou8(token, 0, &pstream.traffic_direc)) 1382 return -EINVAL; 1383 1384 token = strsep(&sptr, " "); 1385 if (!token) 1386 return -EINVAL; 1387 if (kstrtou8(token, 0, &pstream.traffic_class)) 1388 return -EINVAL; 1389 1390 token = strsep(&sptr, " "); 1391 if (!token) 1392 return -EINVAL; 1393 if (kstrtou8(token, 0, &pstream.traffic_type)) 1394 return -EINVAL; 1395 1396 token = strsep(&sptr, " "); 1397 if (!token) 1398 return -EINVAL; 1399 if (kstrtou8(token, 0, &pstream.voice_psc_cap)) 1400 return -EINVAL; 1401 1402 token = strsep(&sptr, " "); 1403 if (!token) 1404 return -EINVAL; 1405 if (kstrtou32(token, 0, &val32)) 1406 return -EINVAL; 1407 pstream.min_service_int = cpu_to_le32(val32); 1408 1409 token = strsep(&sptr, " "); 1410 if (!token) 1411 return -EINVAL; 1412 if (kstrtou32(token, 0, &val32)) 1413 return -EINVAL; 1414 pstream.max_service_int = cpu_to_le32(val32); 1415 1416 token = strsep(&sptr, " "); 1417 if (!token) 1418 return -EINVAL; 1419 if (kstrtou32(token, 0, &val32)) 1420 return -EINVAL; 1421 pstream.inactivity_int = cpu_to_le32(val32); 1422 1423 token = strsep(&sptr, " "); 1424 if (!token) 1425 return -EINVAL; 1426 if (kstrtou32(token, 0, &val32)) 1427 return -EINVAL; 1428 pstream.suspension_int = cpu_to_le32(val32); 1429 1430 token = strsep(&sptr, " "); 1431 if (!token) 1432 return -EINVAL; 1433 if (kstrtou32(token, 0, &val32)) 1434 return -EINVAL; 1435 pstream.service_start_time = cpu_to_le32(val32); 1436 1437 token = strsep(&sptr, " "); 1438 if (!token) 1439 return -EINVAL; 1440 if (kstrtou8(token, 0, &pstream.tsid)) 1441 return -EINVAL; 1442 1443 token = strsep(&sptr, " "); 1444 if (!token) 1445 return -EINVAL; 1446 if (kstrtou16(token, 0, &val16)) 1447 return -EINVAL; 1448 pstream.nominal_msdu = cpu_to_le16(val16); 1449 1450 token = strsep(&sptr, " "); 1451 if (!token) 1452 return -EINVAL; 1453 if (kstrtou16(token, 0, &val16)) 1454 return -EINVAL; 1455 pstream.max_msdu = cpu_to_le16(val16); 1456 1457 token = strsep(&sptr, " "); 1458 if (!token) 1459 return -EINVAL; 1460 if (kstrtou32(token, 0, &val32)) 1461 return -EINVAL; 1462 pstream.min_data_rate = 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.mean_data_rate = 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.peak_data_rate = cpu_to_le32(val32); 1477 1478 token = strsep(&sptr, " "); 1479 if (!token) 1480 return -EINVAL; 1481 if (kstrtou32(token, 0, &val32)) 1482 return -EINVAL; 1483 pstream.max_burst_size = cpu_to_le32(val32); 1484 1485 token = strsep(&sptr, " "); 1486 if (!token) 1487 return -EINVAL; 1488 if (kstrtou32(token, 0, &val32)) 1489 return -EINVAL; 1490 pstream.delay_bound = cpu_to_le32(val32); 1491 1492 token = strsep(&sptr, " "); 1493 if (!token) 1494 return -EINVAL; 1495 if (kstrtou32(token, 0, &val32)) 1496 return -EINVAL; 1497 pstream.min_phy_rate = cpu_to_le32(val32); 1498 1499 token = strsep(&sptr, " "); 1500 if (!token) 1501 return -EINVAL; 1502 if (kstrtou32(token, 0, &val32)) 1503 return -EINVAL; 1504 pstream.sba = cpu_to_le32(val32); 1505 1506 token = strsep(&sptr, " "); 1507 if (!token) 1508 return -EINVAL; 1509 if (kstrtou32(token, 0, &val32)) 1510 return -EINVAL; 1511 pstream.medium_time = cpu_to_le32(val32); 1512 1513 pstream.nominal_phy = le32_to_cpu(pstream.min_phy_rate) / 1000000; 1514 1515 ath6kl_wmi_create_pstream_cmd(ar->wmi, vif->fw_vif_idx, &pstream); 1516 1517 return count; 1518 } 1519 1520 static const struct file_operations fops_create_qos = { 1521 .write = ath6kl_create_qos_write, 1522 .open = ath6kl_debugfs_open, 1523 .owner = THIS_MODULE, 1524 .llseek = default_llseek, 1525 }; 1526 1527 static ssize_t ath6kl_delete_qos_write(struct file *file, 1528 const char __user *user_buf, 1529 size_t count, loff_t *ppos) 1530 { 1531 1532 struct ath6kl *ar = file->private_data; 1533 struct ath6kl_vif *vif; 1534 char buf[100]; 1535 ssize_t len; 1536 char *sptr, *token; 1537 u8 traffic_class; 1538 u8 tsid; 1539 1540 vif = ath6kl_vif_first(ar); 1541 if (!vif) 1542 return -EIO; 1543 1544 len = min(count, sizeof(buf) - 1); 1545 if (copy_from_user(buf, user_buf, len)) 1546 return -EFAULT; 1547 buf[len] = '\0'; 1548 sptr = buf; 1549 1550 token = strsep(&sptr, " "); 1551 if (!token) 1552 return -EINVAL; 1553 if (kstrtou8(token, 0, &traffic_class)) 1554 return -EINVAL; 1555 1556 token = strsep(&sptr, " "); 1557 if (!token) 1558 return -EINVAL; 1559 if (kstrtou8(token, 0, &tsid)) 1560 return -EINVAL; 1561 1562 ath6kl_wmi_delete_pstream_cmd(ar->wmi, vif->fw_vif_idx, 1563 traffic_class, tsid); 1564 1565 return count; 1566 } 1567 1568 static const struct file_operations fops_delete_qos = { 1569 .write = ath6kl_delete_qos_write, 1570 .open = ath6kl_debugfs_open, 1571 .owner = THIS_MODULE, 1572 .llseek = default_llseek, 1573 }; 1574 1575 static ssize_t ath6kl_bgscan_int_write(struct file *file, 1576 const char __user *user_buf, 1577 size_t count, loff_t *ppos) 1578 { 1579 struct ath6kl *ar = file->private_data; 1580 u16 bgscan_int; 1581 char buf[32]; 1582 ssize_t len; 1583 1584 len = min(count, sizeof(buf) - 1); 1585 if (copy_from_user(buf, user_buf, len)) 1586 return -EFAULT; 1587 1588 buf[len] = '\0'; 1589 if (kstrtou16(buf, 0, &bgscan_int)) 1590 return -EINVAL; 1591 1592 if (bgscan_int == 0) 1593 bgscan_int = 0xffff; 1594 1595 ath6kl_wmi_scanparams_cmd(ar->wmi, 0, 0, 0, bgscan_int, 0, 0, 0, 3, 1596 0, 0, 0); 1597 1598 return count; 1599 } 1600 1601 static const struct file_operations fops_bgscan_int = { 1602 .write = ath6kl_bgscan_int_write, 1603 .open = ath6kl_debugfs_open, 1604 .owner = THIS_MODULE, 1605 .llseek = default_llseek, 1606 }; 1607 1608 static ssize_t ath6kl_listen_int_write(struct file *file, 1609 const char __user *user_buf, 1610 size_t count, loff_t *ppos) 1611 { 1612 struct ath6kl *ar = file->private_data; 1613 struct ath6kl_vif *vif; 1614 u16 listen_interval; 1615 char buf[32]; 1616 ssize_t len; 1617 1618 vif = ath6kl_vif_first(ar); 1619 if (!vif) 1620 return -EIO; 1621 1622 len = min(count, sizeof(buf) - 1); 1623 if (copy_from_user(buf, user_buf, len)) 1624 return -EFAULT; 1625 1626 buf[len] = '\0'; 1627 if (kstrtou16(buf, 0, &listen_interval)) 1628 return -EINVAL; 1629 1630 if ((listen_interval < 1) || (listen_interval > 50)) 1631 return -EINVAL; 1632 1633 ar->listen_intvl_b = listen_interval; 1634 ath6kl_wmi_listeninterval_cmd(ar->wmi, vif->fw_vif_idx, 0, 1635 ar->listen_intvl_b); 1636 1637 return count; 1638 } 1639 1640 static ssize_t ath6kl_listen_int_read(struct file *file, 1641 char __user *user_buf, 1642 size_t count, loff_t *ppos) 1643 { 1644 struct ath6kl *ar = file->private_data; 1645 char buf[32]; 1646 int len; 1647 1648 len = scnprintf(buf, sizeof(buf), "%u\n", ar->listen_intvl_b); 1649 1650 return simple_read_from_buffer(user_buf, count, ppos, buf, len); 1651 } 1652 1653 static const struct file_operations fops_listen_int = { 1654 .read = ath6kl_listen_int_read, 1655 .write = ath6kl_listen_int_write, 1656 .open = ath6kl_debugfs_open, 1657 .owner = THIS_MODULE, 1658 .llseek = default_llseek, 1659 }; 1660 1661 static ssize_t ath6kl_power_params_write(struct file *file, 1662 const char __user *user_buf, 1663 size_t count, loff_t *ppos) 1664 { 1665 struct ath6kl *ar = file->private_data; 1666 u8 buf[100]; 1667 unsigned int len = 0; 1668 char *sptr, *token; 1669 u16 idle_period, ps_poll_num, dtim, 1670 tx_wakeup, num_tx; 1671 1672 len = min(count, sizeof(buf) - 1); 1673 if (copy_from_user(buf, user_buf, len)) 1674 return -EFAULT; 1675 buf[len] = '\0'; 1676 sptr = buf; 1677 1678 token = strsep(&sptr, " "); 1679 if (!token) 1680 return -EINVAL; 1681 if (kstrtou16(token, 0, &idle_period)) 1682 return -EINVAL; 1683 1684 token = strsep(&sptr, " "); 1685 if (!token) 1686 return -EINVAL; 1687 if (kstrtou16(token, 0, &ps_poll_num)) 1688 return -EINVAL; 1689 1690 token = strsep(&sptr, " "); 1691 if (!token) 1692 return -EINVAL; 1693 if (kstrtou16(token, 0, &dtim)) 1694 return -EINVAL; 1695 1696 token = strsep(&sptr, " "); 1697 if (!token) 1698 return -EINVAL; 1699 if (kstrtou16(token, 0, &tx_wakeup)) 1700 return -EINVAL; 1701 1702 token = strsep(&sptr, " "); 1703 if (!token) 1704 return -EINVAL; 1705 if (kstrtou16(token, 0, &num_tx)) 1706 return -EINVAL; 1707 1708 ath6kl_wmi_pmparams_cmd(ar->wmi, 0, idle_period, ps_poll_num, 1709 dtim, tx_wakeup, num_tx, 0); 1710 1711 return count; 1712 } 1713 1714 static const struct file_operations fops_power_params = { 1715 .write = ath6kl_power_params_write, 1716 .open = ath6kl_debugfs_open, 1717 .owner = THIS_MODULE, 1718 .llseek = default_llseek, 1719 }; 1720 1721 int ath6kl_debug_init(struct ath6kl *ar) 1722 { 1723 skb_queue_head_init(&ar->debug.fwlog_queue); 1724 init_completion(&ar->debug.fwlog_completion); 1725 1726 /* 1727 * Actually we are lying here but don't know how to read the mask 1728 * value from the firmware. 1729 */ 1730 ar->debug.fwlog_mask = 0; 1731 1732 ar->debugfs_phy = debugfs_create_dir("ath6kl", 1733 ar->wiphy->debugfsdir); 1734 if (!ar->debugfs_phy) 1735 return -ENOMEM; 1736 1737 debugfs_create_file("tgt_stats", S_IRUSR, ar->debugfs_phy, ar, 1738 &fops_tgt_stats); 1739 1740 debugfs_create_file("credit_dist_stats", S_IRUSR, ar->debugfs_phy, ar, 1741 &fops_credit_dist_stats); 1742 1743 debugfs_create_file("endpoint_stats", S_IRUSR | S_IWUSR, 1744 ar->debugfs_phy, ar, &fops_endpoint_stats); 1745 1746 debugfs_create_file("fwlog", S_IRUSR, ar->debugfs_phy, ar, 1747 &fops_fwlog); 1748 1749 debugfs_create_file("fwlog_block", S_IRUSR, ar->debugfs_phy, ar, 1750 &fops_fwlog_block); 1751 1752 debugfs_create_file("fwlog_mask", S_IRUSR | S_IWUSR, ar->debugfs_phy, 1753 ar, &fops_fwlog_mask); 1754 1755 debugfs_create_file("reg_addr", S_IRUSR | S_IWUSR, ar->debugfs_phy, ar, 1756 &fops_diag_reg_read); 1757 1758 debugfs_create_file("reg_dump", S_IRUSR, ar->debugfs_phy, ar, 1759 &fops_reg_dump); 1760 1761 debugfs_create_file("lrssi_roam_threshold", S_IRUSR | S_IWUSR, 1762 ar->debugfs_phy, ar, &fops_lrssi_roam_threshold); 1763 1764 debugfs_create_file("reg_write", S_IRUSR | S_IWUSR, 1765 ar->debugfs_phy, ar, &fops_diag_reg_write); 1766 1767 debugfs_create_file("war_stats", S_IRUSR, ar->debugfs_phy, ar, 1768 &fops_war_stats); 1769 1770 debugfs_create_file("roam_table", S_IRUSR, ar->debugfs_phy, ar, 1771 &fops_roam_table); 1772 1773 debugfs_create_file("force_roam", S_IWUSR, ar->debugfs_phy, ar, 1774 &fops_force_roam); 1775 1776 debugfs_create_file("roam_mode", S_IWUSR, ar->debugfs_phy, ar, 1777 &fops_roam_mode); 1778 1779 debugfs_create_file("keepalive", S_IRUSR | S_IWUSR, ar->debugfs_phy, ar, 1780 &fops_keepalive); 1781 1782 debugfs_create_file("disconnect_timeout", S_IRUSR | S_IWUSR, 1783 ar->debugfs_phy, ar, &fops_disconnect_timeout); 1784 1785 debugfs_create_file("create_qos", S_IWUSR, ar->debugfs_phy, ar, 1786 &fops_create_qos); 1787 1788 debugfs_create_file("delete_qos", S_IWUSR, ar->debugfs_phy, ar, 1789 &fops_delete_qos); 1790 1791 debugfs_create_file("bgscan_interval", S_IWUSR, 1792 ar->debugfs_phy, ar, &fops_bgscan_int); 1793 1794 debugfs_create_file("listen_interval", S_IRUSR | S_IWUSR, 1795 ar->debugfs_phy, ar, &fops_listen_int); 1796 1797 debugfs_create_file("power_params", S_IWUSR, ar->debugfs_phy, ar, 1798 &fops_power_params); 1799 1800 return 0; 1801 } 1802 1803 void ath6kl_debug_cleanup(struct ath6kl *ar) 1804 { 1805 skb_queue_purge(&ar->debug.fwlog_queue); 1806 kfree(ar->debug.roam_tbl); 1807 } 1808 1809 #endif 1810