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 #ifdef CONFIG_ATH6KL_DEBUG 60 61 void ath6kl_dbg(enum ATH6K_DEBUG_MASK mask, const char *fmt, ...) 62 { 63 struct va_format vaf; 64 va_list args; 65 66 if (!(debug_mask & mask)) 67 return; 68 69 va_start(args, fmt); 70 71 vaf.fmt = fmt; 72 vaf.va = &args; 73 74 ath6kl_printk(KERN_DEBUG, "%pV", &vaf); 75 76 va_end(args); 77 } 78 EXPORT_SYMBOL(ath6kl_dbg); 79 80 void ath6kl_dbg_dump(enum ATH6K_DEBUG_MASK mask, 81 const char *msg, const char *prefix, 82 const void *buf, size_t len) 83 { 84 if (debug_mask & mask) { 85 if (msg) 86 ath6kl_dbg(mask, "%s\n", msg); 87 88 print_hex_dump_bytes(prefix, DUMP_PREFIX_OFFSET, buf, len); 89 } 90 } 91 EXPORT_SYMBOL(ath6kl_dbg_dump); 92 93 #define REG_OUTPUT_LEN_PER_LINE 25 94 #define REGTYPE_STR_LEN 100 95 96 struct ath6kl_diag_reg_info { 97 u32 reg_start; 98 u32 reg_end; 99 const char *reg_info; 100 }; 101 102 static const struct ath6kl_diag_reg_info diag_reg[] = { 103 { 0x20000, 0x200fc, "General DMA and Rx registers" }, 104 { 0x28000, 0x28900, "MAC PCU register & keycache" }, 105 { 0x20800, 0x20a40, "QCU" }, 106 { 0x21000, 0x212f0, "DCU" }, 107 { 0x4000, 0x42e4, "RTC" }, 108 { 0x540000, 0x540000 + (256 * 1024), "RAM" }, 109 { 0x29800, 0x2B210, "Base Band" }, 110 { 0x1C000, 0x1C748, "Analog" }, 111 }; 112 113 void ath6kl_dump_registers(struct ath6kl_device *dev, 114 struct ath6kl_irq_proc_registers *irq_proc_reg, 115 struct ath6kl_irq_enable_reg *irq_enable_reg) 116 { 117 118 ath6kl_dbg(ATH6KL_DBG_IRQ, ("<------- Register Table -------->\n")); 119 120 if (irq_proc_reg != NULL) { 121 ath6kl_dbg(ATH6KL_DBG_IRQ, 122 "Host Int status: 0x%x\n", 123 irq_proc_reg->host_int_status); 124 ath6kl_dbg(ATH6KL_DBG_IRQ, 125 "CPU Int status: 0x%x\n", 126 irq_proc_reg->cpu_int_status); 127 ath6kl_dbg(ATH6KL_DBG_IRQ, 128 "Error Int status: 0x%x\n", 129 irq_proc_reg->error_int_status); 130 ath6kl_dbg(ATH6KL_DBG_IRQ, 131 "Counter Int status: 0x%x\n", 132 irq_proc_reg->counter_int_status); 133 ath6kl_dbg(ATH6KL_DBG_IRQ, 134 "Mbox Frame: 0x%x\n", 135 irq_proc_reg->mbox_frame); 136 ath6kl_dbg(ATH6KL_DBG_IRQ, 137 "Rx Lookahead Valid: 0x%x\n", 138 irq_proc_reg->rx_lkahd_valid); 139 ath6kl_dbg(ATH6KL_DBG_IRQ, 140 "Rx Lookahead 0: 0x%x\n", 141 irq_proc_reg->rx_lkahd[0]); 142 ath6kl_dbg(ATH6KL_DBG_IRQ, 143 "Rx Lookahead 1: 0x%x\n", 144 irq_proc_reg->rx_lkahd[1]); 145 146 if (dev->ar->mbox_info.gmbox_addr != 0) { 147 /* 148 * If the target supports GMBOX hardware, dump some 149 * additional state. 150 */ 151 ath6kl_dbg(ATH6KL_DBG_IRQ, 152 "GMBOX Host Int status 2: 0x%x\n", 153 irq_proc_reg->host_int_status2); 154 ath6kl_dbg(ATH6KL_DBG_IRQ, 155 "GMBOX RX Avail: 0x%x\n", 156 irq_proc_reg->gmbox_rx_avail); 157 ath6kl_dbg(ATH6KL_DBG_IRQ, 158 "GMBOX lookahead alias 0: 0x%x\n", 159 irq_proc_reg->rx_gmbox_lkahd_alias[0]); 160 ath6kl_dbg(ATH6KL_DBG_IRQ, 161 "GMBOX lookahead alias 1: 0x%x\n", 162 irq_proc_reg->rx_gmbox_lkahd_alias[1]); 163 } 164 165 } 166 167 if (irq_enable_reg != NULL) { 168 ath6kl_dbg(ATH6KL_DBG_IRQ, 169 "Int status Enable: 0x%x\n", 170 irq_enable_reg->int_status_en); 171 ath6kl_dbg(ATH6KL_DBG_IRQ, "Counter Int status Enable: 0x%x\n", 172 irq_enable_reg->cntr_int_status_en); 173 } 174 ath6kl_dbg(ATH6KL_DBG_IRQ, "<------------------------------->\n"); 175 } 176 177 static void dump_cred_dist(struct htc_endpoint_credit_dist *ep_dist) 178 { 179 ath6kl_dbg(ATH6KL_DBG_CREDIT, 180 "--- endpoint: %d svc_id: 0x%X ---\n", 181 ep_dist->endpoint, ep_dist->svc_id); 182 ath6kl_dbg(ATH6KL_DBG_CREDIT, " dist_flags : 0x%X\n", 183 ep_dist->dist_flags); 184 ath6kl_dbg(ATH6KL_DBG_CREDIT, " cred_norm : %d\n", 185 ep_dist->cred_norm); 186 ath6kl_dbg(ATH6KL_DBG_CREDIT, " cred_min : %d\n", 187 ep_dist->cred_min); 188 ath6kl_dbg(ATH6KL_DBG_CREDIT, " credits : %d\n", 189 ep_dist->credits); 190 ath6kl_dbg(ATH6KL_DBG_CREDIT, " cred_assngd : %d\n", 191 ep_dist->cred_assngd); 192 ath6kl_dbg(ATH6KL_DBG_CREDIT, " seek_cred : %d\n", 193 ep_dist->seek_cred); 194 ath6kl_dbg(ATH6KL_DBG_CREDIT, " cred_sz : %d\n", 195 ep_dist->cred_sz); 196 ath6kl_dbg(ATH6KL_DBG_CREDIT, " cred_per_msg : %d\n", 197 ep_dist->cred_per_msg); 198 ath6kl_dbg(ATH6KL_DBG_CREDIT, " cred_to_dist : %d\n", 199 ep_dist->cred_to_dist); 200 ath6kl_dbg(ATH6KL_DBG_CREDIT, " txq_depth : %d\n", 201 get_queue_depth(&ep_dist->htc_ep->txq)); 202 ath6kl_dbg(ATH6KL_DBG_CREDIT, 203 "----------------------------------\n"); 204 } 205 206 /* FIXME: move to htc.c */ 207 void dump_cred_dist_stats(struct htc_target *target) 208 { 209 struct htc_endpoint_credit_dist *ep_list; 210 211 list_for_each_entry(ep_list, &target->cred_dist_list, list) 212 dump_cred_dist(ep_list); 213 214 ath6kl_dbg(ATH6KL_DBG_CREDIT, 215 "credit distribution total %d free %d\n", 216 target->credit_info->total_avail_credits, 217 target->credit_info->cur_free_credits); 218 } 219 220 static int ath6kl_debugfs_open(struct inode *inode, struct file *file) 221 { 222 file->private_data = inode->i_private; 223 return 0; 224 } 225 226 void ath6kl_debug_war(struct ath6kl *ar, enum ath6kl_war war) 227 { 228 switch (war) { 229 case ATH6KL_WAR_INVALID_RATE: 230 ar->debug.war_stats.invalid_rate++; 231 break; 232 } 233 } 234 235 static ssize_t read_file_war_stats(struct file *file, char __user *user_buf, 236 size_t count, loff_t *ppos) 237 { 238 struct ath6kl *ar = file->private_data; 239 char *buf; 240 unsigned int len = 0, buf_len = 1500; 241 ssize_t ret_cnt; 242 243 buf = kzalloc(buf_len, GFP_KERNEL); 244 if (!buf) 245 return -ENOMEM; 246 247 len += scnprintf(buf + len, buf_len - len, "\n"); 248 len += scnprintf(buf + len, buf_len - len, "%25s\n", 249 "Workaround stats"); 250 len += scnprintf(buf + len, buf_len - len, "%25s\n\n", 251 "================="); 252 len += scnprintf(buf + len, buf_len - len, "%20s %10u\n", 253 "Invalid rates", ar->debug.war_stats.invalid_rate); 254 255 if (WARN_ON(len > buf_len)) 256 len = buf_len; 257 258 ret_cnt = simple_read_from_buffer(user_buf, count, ppos, buf, len); 259 260 kfree(buf); 261 return ret_cnt; 262 } 263 264 static const struct file_operations fops_war_stats = { 265 .read = read_file_war_stats, 266 .open = ath6kl_debugfs_open, 267 .owner = THIS_MODULE, 268 .llseek = default_llseek, 269 }; 270 271 void ath6kl_debug_fwlog_event(struct ath6kl *ar, const void *buf, size_t len) 272 { 273 struct ath6kl_fwlog_slot *slot; 274 struct sk_buff *skb; 275 size_t slot_len; 276 277 if (WARN_ON(len > ATH6KL_FWLOG_PAYLOAD_SIZE)) 278 return; 279 280 slot_len = sizeof(*slot) + ATH6KL_FWLOG_PAYLOAD_SIZE; 281 282 skb = alloc_skb(slot_len, GFP_KERNEL); 283 if (!skb) 284 return; 285 286 slot = (struct ath6kl_fwlog_slot *) skb_put(skb, slot_len); 287 slot->timestamp = cpu_to_le32(jiffies); 288 slot->length = cpu_to_le32(len); 289 memcpy(slot->payload, buf, len); 290 291 /* Need to pad each record to fixed length ATH6KL_FWLOG_PAYLOAD_SIZE */ 292 memset(slot->payload + len, 0, ATH6KL_FWLOG_PAYLOAD_SIZE - len); 293 294 spin_lock(&ar->debug.fwlog_queue.lock); 295 296 __skb_queue_tail(&ar->debug.fwlog_queue, skb); 297 complete(&ar->debug.fwlog_completion); 298 299 /* drop oldest entries */ 300 while (skb_queue_len(&ar->debug.fwlog_queue) > 301 ATH6KL_FWLOG_MAX_ENTRIES) { 302 skb = __skb_dequeue(&ar->debug.fwlog_queue); 303 kfree_skb(skb); 304 } 305 306 spin_unlock(&ar->debug.fwlog_queue.lock); 307 308 return; 309 } 310 311 static int ath6kl_fwlog_open(struct inode *inode, struct file *file) 312 { 313 struct ath6kl *ar = inode->i_private; 314 315 if (ar->debug.fwlog_open) 316 return -EBUSY; 317 318 ar->debug.fwlog_open = true; 319 320 file->private_data = inode->i_private; 321 return 0; 322 } 323 324 static int ath6kl_fwlog_release(struct inode *inode, struct file *file) 325 { 326 struct ath6kl *ar = inode->i_private; 327 328 ar->debug.fwlog_open = false; 329 330 return 0; 331 } 332 333 static ssize_t ath6kl_fwlog_read(struct file *file, char __user *user_buf, 334 size_t count, loff_t *ppos) 335 { 336 struct ath6kl *ar = file->private_data; 337 struct sk_buff *skb; 338 ssize_t ret_cnt; 339 size_t len = 0; 340 char *buf; 341 342 buf = vmalloc(count); 343 if (!buf) 344 return -ENOMEM; 345 346 /* read undelivered logs from firmware */ 347 ath6kl_read_fwlogs(ar); 348 349 spin_lock(&ar->debug.fwlog_queue.lock); 350 351 while ((skb = __skb_dequeue(&ar->debug.fwlog_queue))) { 352 if (skb->len > count - len) { 353 /* not enough space, put skb back and leave */ 354 __skb_queue_head(&ar->debug.fwlog_queue, skb); 355 break; 356 } 357 358 359 memcpy(buf + len, skb->data, skb->len); 360 len += skb->len; 361 362 kfree_skb(skb); 363 } 364 365 spin_unlock(&ar->debug.fwlog_queue.lock); 366 367 /* FIXME: what to do if len == 0? */ 368 369 ret_cnt = simple_read_from_buffer(user_buf, count, ppos, buf, len); 370 371 vfree(buf); 372 373 return ret_cnt; 374 } 375 376 static const struct file_operations fops_fwlog = { 377 .open = ath6kl_fwlog_open, 378 .release = ath6kl_fwlog_release, 379 .read = ath6kl_fwlog_read, 380 .owner = THIS_MODULE, 381 .llseek = default_llseek, 382 }; 383 384 static ssize_t ath6kl_fwlog_block_read(struct file *file, 385 char __user *user_buf, 386 size_t count, 387 loff_t *ppos) 388 { 389 struct ath6kl *ar = file->private_data; 390 struct sk_buff *skb; 391 ssize_t ret_cnt; 392 size_t len = 0, not_copied; 393 char *buf; 394 int ret; 395 396 buf = vmalloc(count); 397 if (!buf) 398 return -ENOMEM; 399 400 spin_lock(&ar->debug.fwlog_queue.lock); 401 402 if (skb_queue_len(&ar->debug.fwlog_queue) == 0) { 403 /* we must init under queue lock */ 404 init_completion(&ar->debug.fwlog_completion); 405 406 spin_unlock(&ar->debug.fwlog_queue.lock); 407 408 ret = wait_for_completion_interruptible( 409 &ar->debug.fwlog_completion); 410 if (ret == -ERESTARTSYS) 411 return ret; 412 413 spin_lock(&ar->debug.fwlog_queue.lock); 414 } 415 416 while ((skb = __skb_dequeue(&ar->debug.fwlog_queue))) { 417 if (skb->len > count - len) { 418 /* not enough space, put skb back and leave */ 419 __skb_queue_head(&ar->debug.fwlog_queue, skb); 420 break; 421 } 422 423 424 memcpy(buf + len, skb->data, skb->len); 425 len += skb->len; 426 427 kfree_skb(skb); 428 } 429 430 spin_unlock(&ar->debug.fwlog_queue.lock); 431 432 /* FIXME: what to do if len == 0? */ 433 434 not_copied = copy_to_user(user_buf, buf, len); 435 if (not_copied != 0) { 436 ret_cnt = -EFAULT; 437 goto out; 438 } 439 440 *ppos = *ppos + len; 441 442 ret_cnt = len; 443 444 out: 445 vfree(buf); 446 447 return ret_cnt; 448 } 449 450 static const struct file_operations fops_fwlog_block = { 451 .open = ath6kl_fwlog_open, 452 .release = ath6kl_fwlog_release, 453 .read = ath6kl_fwlog_block_read, 454 .owner = THIS_MODULE, 455 .llseek = default_llseek, 456 }; 457 458 static ssize_t ath6kl_fwlog_mask_read(struct file *file, char __user *user_buf, 459 size_t count, loff_t *ppos) 460 { 461 struct ath6kl *ar = file->private_data; 462 char buf[16]; 463 int len; 464 465 len = snprintf(buf, sizeof(buf), "0x%x\n", ar->debug.fwlog_mask); 466 467 return simple_read_from_buffer(user_buf, count, ppos, buf, len); 468 } 469 470 static ssize_t ath6kl_fwlog_mask_write(struct file *file, 471 const char __user *user_buf, 472 size_t count, loff_t *ppos) 473 { 474 struct ath6kl *ar = file->private_data; 475 int ret; 476 477 ret = kstrtou32_from_user(user_buf, count, 0, &ar->debug.fwlog_mask); 478 if (ret) 479 return ret; 480 481 ret = ath6kl_wmi_config_debug_module_cmd(ar->wmi, 482 ATH6KL_FWLOG_VALID_MASK, 483 ar->debug.fwlog_mask); 484 if (ret) 485 return ret; 486 487 return count; 488 } 489 490 static const struct file_operations fops_fwlog_mask = { 491 .open = ath6kl_debugfs_open, 492 .read = ath6kl_fwlog_mask_read, 493 .write = ath6kl_fwlog_mask_write, 494 .owner = THIS_MODULE, 495 .llseek = default_llseek, 496 }; 497 498 static ssize_t read_file_tgt_stats(struct file *file, char __user *user_buf, 499 size_t count, loff_t *ppos) 500 { 501 struct ath6kl *ar = file->private_data; 502 struct ath6kl_vif *vif; 503 struct target_stats *tgt_stats; 504 char *buf; 505 unsigned int len = 0, buf_len = 1500; 506 int i; 507 long left; 508 ssize_t ret_cnt; 509 510 vif = ath6kl_vif_first(ar); 511 if (!vif) 512 return -EIO; 513 514 tgt_stats = &vif->target_stats; 515 516 buf = kzalloc(buf_len, GFP_KERNEL); 517 if (!buf) 518 return -ENOMEM; 519 520 if (down_interruptible(&ar->sem)) { 521 kfree(buf); 522 return -EBUSY; 523 } 524 525 set_bit(STATS_UPDATE_PEND, &vif->flags); 526 527 if (ath6kl_wmi_get_stats_cmd(ar->wmi, 0)) { 528 up(&ar->sem); 529 kfree(buf); 530 return -EIO; 531 } 532 533 left = wait_event_interruptible_timeout(ar->event_wq, 534 !test_bit(STATS_UPDATE_PEND, 535 &vif->flags), WMI_TIMEOUT); 536 537 up(&ar->sem); 538 539 if (left <= 0) { 540 kfree(buf); 541 return -ETIMEDOUT; 542 } 543 544 len += scnprintf(buf + len, buf_len - len, "\n"); 545 len += scnprintf(buf + len, buf_len - len, "%25s\n", 546 "Target Tx stats"); 547 len += scnprintf(buf + len, buf_len - len, "%25s\n\n", 548 "================="); 549 len += scnprintf(buf + len, buf_len - len, "%20s %10llu\n", 550 "Ucast packets", tgt_stats->tx_ucast_pkt); 551 len += scnprintf(buf + len, buf_len - len, "%20s %10llu\n", 552 "Bcast packets", tgt_stats->tx_bcast_pkt); 553 len += scnprintf(buf + len, buf_len - len, "%20s %10llu\n", 554 "Ucast byte", tgt_stats->tx_ucast_byte); 555 len += scnprintf(buf + len, buf_len - len, "%20s %10llu\n", 556 "Bcast byte", tgt_stats->tx_bcast_byte); 557 len += scnprintf(buf + len, buf_len - len, "%20s %10llu\n", 558 "Rts success cnt", tgt_stats->tx_rts_success_cnt); 559 for (i = 0; i < 4; i++) 560 len += scnprintf(buf + len, buf_len - len, 561 "%18s %d %10llu\n", "PER on ac", 562 i, tgt_stats->tx_pkt_per_ac[i]); 563 len += scnprintf(buf + len, buf_len - len, "%20s %10llu\n", 564 "Error", tgt_stats->tx_err); 565 len += scnprintf(buf + len, buf_len - len, "%20s %10llu\n", 566 "Fail count", tgt_stats->tx_fail_cnt); 567 len += scnprintf(buf + len, buf_len - len, "%20s %10llu\n", 568 "Retry count", tgt_stats->tx_retry_cnt); 569 len += scnprintf(buf + len, buf_len - len, "%20s %10llu\n", 570 "Multi retry cnt", tgt_stats->tx_mult_retry_cnt); 571 len += scnprintf(buf + len, buf_len - len, "%20s %10llu\n", 572 "Rts fail cnt", tgt_stats->tx_rts_fail_cnt); 573 len += scnprintf(buf + len, buf_len - len, "%25s %10llu\n\n", 574 "TKIP counter measure used", 575 tgt_stats->tkip_cnter_measures_invoked); 576 577 len += scnprintf(buf + len, buf_len - len, "%25s\n", 578 "Target Rx stats"); 579 len += scnprintf(buf + len, buf_len - len, "%25s\n", 580 "================="); 581 582 len += scnprintf(buf + len, buf_len - len, "%20s %10llu\n", 583 "Ucast packets", tgt_stats->rx_ucast_pkt); 584 len += scnprintf(buf + len, buf_len - len, "%20s %10d\n", 585 "Ucast Rate", tgt_stats->rx_ucast_rate); 586 len += scnprintf(buf + len, buf_len - len, "%20s %10llu\n", 587 "Bcast packets", tgt_stats->rx_bcast_pkt); 588 len += scnprintf(buf + len, buf_len - len, "%20s %10llu\n", 589 "Ucast byte", tgt_stats->rx_ucast_byte); 590 len += scnprintf(buf + len, buf_len - len, "%20s %10llu\n", 591 "Bcast byte", tgt_stats->rx_bcast_byte); 592 len += scnprintf(buf + len, buf_len - len, "%20s %10llu\n", 593 "Fragmented pkt", tgt_stats->rx_frgment_pkt); 594 len += scnprintf(buf + len, buf_len - len, "%20s %10llu\n", 595 "Error", tgt_stats->rx_err); 596 len += scnprintf(buf + len, buf_len - len, "%20s %10llu\n", 597 "CRC Err", tgt_stats->rx_crc_err); 598 len += scnprintf(buf + len, buf_len - len, "%20s %10llu\n", 599 "Key chache miss", tgt_stats->rx_key_cache_miss); 600 len += scnprintf(buf + len, buf_len - len, "%20s %10llu\n", 601 "Decrypt Err", tgt_stats->rx_decrypt_err); 602 len += scnprintf(buf + len, buf_len - len, "%20s %10llu\n", 603 "Duplicate frame", tgt_stats->rx_dupl_frame); 604 len += scnprintf(buf + len, buf_len - len, "%20s %10llu\n", 605 "Tkip Mic failure", tgt_stats->tkip_local_mic_fail); 606 len += scnprintf(buf + len, buf_len - len, "%20s %10llu\n", 607 "TKIP format err", tgt_stats->tkip_fmt_err); 608 len += scnprintf(buf + len, buf_len - len, "%20s %10llu\n", 609 "CCMP format Err", tgt_stats->ccmp_fmt_err); 610 len += scnprintf(buf + len, buf_len - len, "%20s %10llu\n\n", 611 "CCMP Replay Err", tgt_stats->ccmp_replays); 612 613 len += scnprintf(buf + len, buf_len - len, "%25s\n", 614 "Misc Target stats"); 615 len += scnprintf(buf + len, buf_len - len, "%25s\n", 616 "================="); 617 len += scnprintf(buf + len, buf_len - len, "%20s %10llu\n", 618 "Beacon Miss count", tgt_stats->cs_bmiss_cnt); 619 len += scnprintf(buf + len, buf_len - len, "%20s %10llu\n", 620 "Num Connects", tgt_stats->cs_connect_cnt); 621 len += scnprintf(buf + len, buf_len - len, "%20s %10llu\n", 622 "Num disconnects", tgt_stats->cs_discon_cnt); 623 len += scnprintf(buf + len, buf_len - len, "%20s %10d\n", 624 "Beacon avg rssi", tgt_stats->cs_ave_beacon_rssi); 625 626 if (len > buf_len) 627 len = buf_len; 628 629 ret_cnt = simple_read_from_buffer(user_buf, count, ppos, buf, len); 630 631 kfree(buf); 632 return ret_cnt; 633 } 634 635 static const struct file_operations fops_tgt_stats = { 636 .read = read_file_tgt_stats, 637 .open = ath6kl_debugfs_open, 638 .owner = THIS_MODULE, 639 .llseek = default_llseek, 640 }; 641 642 #define print_credit_info(fmt_str, ep_list_field) \ 643 (len += scnprintf(buf + len, buf_len - len, fmt_str, \ 644 ep_list->ep_list_field)) 645 #define CREDIT_INFO_DISPLAY_STRING_LEN 200 646 #define CREDIT_INFO_LEN 128 647 648 static ssize_t read_file_credit_dist_stats(struct file *file, 649 char __user *user_buf, 650 size_t count, loff_t *ppos) 651 { 652 struct ath6kl *ar = file->private_data; 653 struct htc_target *target = ar->htc_target; 654 struct htc_endpoint_credit_dist *ep_list; 655 char *buf; 656 unsigned int buf_len, len = 0; 657 ssize_t ret_cnt; 658 659 buf_len = CREDIT_INFO_DISPLAY_STRING_LEN + 660 get_queue_depth(&target->cred_dist_list) * CREDIT_INFO_LEN; 661 buf = kzalloc(buf_len, GFP_KERNEL); 662 if (!buf) 663 return -ENOMEM; 664 665 len += scnprintf(buf + len, buf_len - len, "%25s%5d\n", 666 "Total Avail Credits: ", 667 target->credit_info->total_avail_credits); 668 len += scnprintf(buf + len, buf_len - len, "%25s%5d\n", 669 "Free credits :", 670 target->credit_info->cur_free_credits); 671 672 len += scnprintf(buf + len, buf_len - len, 673 " Epid Flags Cred_norm Cred_min Credits Cred_assngd" 674 " Seek_cred Cred_sz Cred_per_msg Cred_to_dist" 675 " qdepth\n"); 676 677 list_for_each_entry(ep_list, &target->cred_dist_list, list) { 678 print_credit_info(" %2d", endpoint); 679 print_credit_info("%10x", dist_flags); 680 print_credit_info("%8d", cred_norm); 681 print_credit_info("%9d", cred_min); 682 print_credit_info("%9d", credits); 683 print_credit_info("%10d", cred_assngd); 684 print_credit_info("%13d", seek_cred); 685 print_credit_info("%12d", cred_sz); 686 print_credit_info("%9d", cred_per_msg); 687 print_credit_info("%14d", cred_to_dist); 688 len += scnprintf(buf + len, buf_len - len, "%12d\n", 689 get_queue_depth(&ep_list->htc_ep->txq)); 690 } 691 692 if (len > buf_len) 693 len = buf_len; 694 695 ret_cnt = simple_read_from_buffer(user_buf, count, ppos, buf, len); 696 kfree(buf); 697 return ret_cnt; 698 } 699 700 static const struct file_operations fops_credit_dist_stats = { 701 .read = read_file_credit_dist_stats, 702 .open = ath6kl_debugfs_open, 703 .owner = THIS_MODULE, 704 .llseek = default_llseek, 705 }; 706 707 static unsigned int print_endpoint_stat(struct htc_target *target, char *buf, 708 unsigned int buf_len, unsigned int len, 709 int offset, const char *name) 710 { 711 int i; 712 struct htc_endpoint_stats *ep_st; 713 u32 *counter; 714 715 len += scnprintf(buf + len, buf_len - len, "%s:", name); 716 for (i = 0; i < ENDPOINT_MAX; i++) { 717 ep_st = &target->endpoint[i].ep_st; 718 counter = ((u32 *) ep_st) + (offset / 4); 719 len += scnprintf(buf + len, buf_len - len, " %u", *counter); 720 } 721 len += scnprintf(buf + len, buf_len - len, "\n"); 722 723 return len; 724 } 725 726 static ssize_t ath6kl_endpoint_stats_read(struct file *file, 727 char __user *user_buf, 728 size_t count, loff_t *ppos) 729 { 730 struct ath6kl *ar = file->private_data; 731 struct htc_target *target = ar->htc_target; 732 char *buf; 733 unsigned int buf_len, len = 0; 734 ssize_t ret_cnt; 735 736 buf_len = sizeof(struct htc_endpoint_stats) / sizeof(u32) * 737 (25 + ENDPOINT_MAX * 11); 738 buf = kmalloc(buf_len, GFP_KERNEL); 739 if (!buf) 740 return -ENOMEM; 741 742 #define EPSTAT(name) \ 743 do { \ 744 len = print_endpoint_stat(target, buf, buf_len, len, \ 745 offsetof(struct htc_endpoint_stats, \ 746 name), \ 747 #name); \ 748 } while (0) 749 750 EPSTAT(cred_low_indicate); 751 EPSTAT(tx_issued); 752 EPSTAT(tx_pkt_bundled); 753 EPSTAT(tx_bundles); 754 EPSTAT(tx_dropped); 755 EPSTAT(tx_cred_rpt); 756 EPSTAT(cred_rpt_from_rx); 757 EPSTAT(cred_rpt_from_other); 758 EPSTAT(cred_rpt_ep0); 759 EPSTAT(cred_from_rx); 760 EPSTAT(cred_from_other); 761 EPSTAT(cred_from_ep0); 762 EPSTAT(cred_cosumd); 763 EPSTAT(cred_retnd); 764 EPSTAT(rx_pkts); 765 EPSTAT(rx_lkahds); 766 EPSTAT(rx_bundl); 767 EPSTAT(rx_bundle_lkahd); 768 EPSTAT(rx_bundle_from_hdr); 769 EPSTAT(rx_alloc_thresh_hit); 770 EPSTAT(rxalloc_thresh_byte); 771 #undef EPSTAT 772 773 if (len > buf_len) 774 len = buf_len; 775 776 ret_cnt = simple_read_from_buffer(user_buf, count, ppos, buf, len); 777 kfree(buf); 778 return ret_cnt; 779 } 780 781 static ssize_t ath6kl_endpoint_stats_write(struct file *file, 782 const char __user *user_buf, 783 size_t count, loff_t *ppos) 784 { 785 struct ath6kl *ar = file->private_data; 786 struct htc_target *target = ar->htc_target; 787 int ret, i; 788 u32 val; 789 struct htc_endpoint_stats *ep_st; 790 791 ret = kstrtou32_from_user(user_buf, count, 0, &val); 792 if (ret) 793 return ret; 794 if (val == 0) { 795 for (i = 0; i < ENDPOINT_MAX; i++) { 796 ep_st = &target->endpoint[i].ep_st; 797 memset(ep_st, 0, sizeof(*ep_st)); 798 } 799 } 800 801 return count; 802 } 803 804 static const struct file_operations fops_endpoint_stats = { 805 .open = ath6kl_debugfs_open, 806 .read = ath6kl_endpoint_stats_read, 807 .write = ath6kl_endpoint_stats_write, 808 .owner = THIS_MODULE, 809 .llseek = default_llseek, 810 }; 811 812 static unsigned long ath6kl_get_num_reg(void) 813 { 814 int i; 815 unsigned long n_reg = 0; 816 817 for (i = 0; i < ARRAY_SIZE(diag_reg); i++) 818 n_reg = n_reg + 819 (diag_reg[i].reg_end - diag_reg[i].reg_start) / 4 + 1; 820 821 return n_reg; 822 } 823 824 static bool ath6kl_dbg_is_diag_reg_valid(u32 reg_addr) 825 { 826 int i; 827 828 for (i = 0; i < ARRAY_SIZE(diag_reg); i++) { 829 if (reg_addr >= diag_reg[i].reg_start && 830 reg_addr <= diag_reg[i].reg_end) 831 return true; 832 } 833 834 return false; 835 } 836 837 static ssize_t ath6kl_regread_read(struct file *file, char __user *user_buf, 838 size_t count, loff_t *ppos) 839 { 840 struct ath6kl *ar = file->private_data; 841 u8 buf[50]; 842 unsigned int len = 0; 843 844 if (ar->debug.dbgfs_diag_reg) 845 len += scnprintf(buf + len, sizeof(buf) - len, "0x%x\n", 846 ar->debug.dbgfs_diag_reg); 847 else 848 len += scnprintf(buf + len, sizeof(buf) - len, 849 "All diag registers\n"); 850 851 return simple_read_from_buffer(user_buf, count, ppos, buf, len); 852 } 853 854 static ssize_t ath6kl_regread_write(struct file *file, 855 const char __user *user_buf, 856 size_t count, loff_t *ppos) 857 { 858 struct ath6kl *ar = file->private_data; 859 unsigned long reg_addr; 860 861 if (kstrtoul_from_user(user_buf, count, 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; 975 976 if (kstrtoul_from_user(user_buf, count, 0, &lrssi_roam_threshold)) 977 return -EINVAL; 978 979 ar->lrssi_roam_threshold = lrssi_roam_threshold; 980 981 ath6kl_wmi_set_roam_lrssi_cmd(ar->wmi, ar->lrssi_roam_threshold); 982 983 return count; 984 } 985 986 static ssize_t ath6kl_lrssi_roam_read(struct file *file, 987 char __user *user_buf, 988 size_t count, loff_t *ppos) 989 { 990 struct ath6kl *ar = file->private_data; 991 char buf[32]; 992 unsigned int len; 993 994 len = snprintf(buf, sizeof(buf), "%u\n", ar->lrssi_roam_threshold); 995 996 return simple_read_from_buffer(user_buf, count, ppos, buf, len); 997 } 998 999 static const struct file_operations fops_lrssi_roam_threshold = { 1000 .read = ath6kl_lrssi_roam_read, 1001 .write = ath6kl_lrssi_roam_write, 1002 .open = ath6kl_debugfs_open, 1003 .owner = THIS_MODULE, 1004 .llseek = default_llseek, 1005 }; 1006 1007 static ssize_t ath6kl_regwrite_read(struct file *file, 1008 char __user *user_buf, 1009 size_t count, loff_t *ppos) 1010 { 1011 struct ath6kl *ar = file->private_data; 1012 u8 buf[32]; 1013 unsigned int len = 0; 1014 1015 len = scnprintf(buf, sizeof(buf), "Addr: 0x%x Val: 0x%x\n", 1016 ar->debug.diag_reg_addr_wr, ar->debug.diag_reg_val_wr); 1017 1018 return simple_read_from_buffer(user_buf, count, ppos, buf, len); 1019 } 1020 1021 static ssize_t ath6kl_regwrite_write(struct file *file, 1022 const char __user *user_buf, 1023 size_t count, loff_t *ppos) 1024 { 1025 struct ath6kl *ar = file->private_data; 1026 char buf[32]; 1027 char *sptr, *token; 1028 unsigned int len = 0; 1029 u32 reg_addr, reg_val; 1030 1031 len = min(count, sizeof(buf) - 1); 1032 if (copy_from_user(buf, user_buf, len)) 1033 return -EFAULT; 1034 1035 buf[len] = '\0'; 1036 sptr = buf; 1037 1038 token = strsep(&sptr, "="); 1039 if (!token) 1040 return -EINVAL; 1041 1042 if (kstrtou32(token, 0, ®_addr)) 1043 return -EINVAL; 1044 1045 if (!ath6kl_dbg_is_diag_reg_valid(reg_addr)) 1046 return -EINVAL; 1047 1048 if (kstrtou32(sptr, 0, ®_val)) 1049 return -EINVAL; 1050 1051 ar->debug.diag_reg_addr_wr = reg_addr; 1052 ar->debug.diag_reg_val_wr = reg_val; 1053 1054 if (ath6kl_diag_write32(ar, ar->debug.diag_reg_addr_wr, 1055 cpu_to_le32(ar->debug.diag_reg_val_wr))) 1056 return -EIO; 1057 1058 return count; 1059 } 1060 1061 static const struct file_operations fops_diag_reg_write = { 1062 .read = ath6kl_regwrite_read, 1063 .write = ath6kl_regwrite_write, 1064 .open = ath6kl_debugfs_open, 1065 .owner = THIS_MODULE, 1066 .llseek = default_llseek, 1067 }; 1068 1069 int ath6kl_debug_roam_tbl_event(struct ath6kl *ar, const void *buf, 1070 size_t len) 1071 { 1072 const struct wmi_target_roam_tbl *tbl; 1073 u16 num_entries; 1074 1075 if (len < sizeof(*tbl)) 1076 return -EINVAL; 1077 1078 tbl = (const struct wmi_target_roam_tbl *) buf; 1079 num_entries = le16_to_cpu(tbl->num_entries); 1080 if (sizeof(*tbl) + num_entries * sizeof(struct wmi_bss_roam_info) > 1081 len) 1082 return -EINVAL; 1083 1084 if (ar->debug.roam_tbl == NULL || 1085 ar->debug.roam_tbl_len < (unsigned int) len) { 1086 kfree(ar->debug.roam_tbl); 1087 ar->debug.roam_tbl = kmalloc(len, GFP_ATOMIC); 1088 if (ar->debug.roam_tbl == NULL) 1089 return -ENOMEM; 1090 } 1091 1092 memcpy(ar->debug.roam_tbl, buf, len); 1093 ar->debug.roam_tbl_len = len; 1094 1095 if (test_bit(ROAM_TBL_PEND, &ar->flag)) { 1096 clear_bit(ROAM_TBL_PEND, &ar->flag); 1097 wake_up(&ar->event_wq); 1098 } 1099 1100 return 0; 1101 } 1102 1103 static ssize_t ath6kl_roam_table_read(struct file *file, char __user *user_buf, 1104 size_t count, loff_t *ppos) 1105 { 1106 struct ath6kl *ar = file->private_data; 1107 int ret; 1108 long left; 1109 struct wmi_target_roam_tbl *tbl; 1110 u16 num_entries, i; 1111 char *buf; 1112 unsigned int len, buf_len; 1113 ssize_t ret_cnt; 1114 1115 if (down_interruptible(&ar->sem)) 1116 return -EBUSY; 1117 1118 set_bit(ROAM_TBL_PEND, &ar->flag); 1119 1120 ret = ath6kl_wmi_get_roam_tbl_cmd(ar->wmi); 1121 if (ret) { 1122 up(&ar->sem); 1123 return ret; 1124 } 1125 1126 left = wait_event_interruptible_timeout( 1127 ar->event_wq, !test_bit(ROAM_TBL_PEND, &ar->flag), WMI_TIMEOUT); 1128 up(&ar->sem); 1129 1130 if (left <= 0) 1131 return -ETIMEDOUT; 1132 1133 if (ar->debug.roam_tbl == NULL) 1134 return -ENOMEM; 1135 1136 tbl = (struct wmi_target_roam_tbl *) ar->debug.roam_tbl; 1137 num_entries = le16_to_cpu(tbl->num_entries); 1138 1139 buf_len = 100 + num_entries * 100; 1140 buf = kzalloc(buf_len, GFP_KERNEL); 1141 if (buf == NULL) 1142 return -ENOMEM; 1143 len = 0; 1144 len += scnprintf(buf + len, buf_len - len, 1145 "roam_mode=%u\n\n" 1146 "# roam_util bssid rssi rssidt last_rssi util bias\n", 1147 le16_to_cpu(tbl->roam_mode)); 1148 1149 for (i = 0; i < num_entries; i++) { 1150 struct wmi_bss_roam_info *info = &tbl->info[i]; 1151 len += scnprintf(buf + len, buf_len - len, 1152 "%d %pM %d %d %d %d %d\n", 1153 a_sle32_to_cpu(info->roam_util), info->bssid, 1154 info->rssi, info->rssidt, info->last_rssi, 1155 info->util, info->bias); 1156 } 1157 1158 if (len > buf_len) 1159 len = buf_len; 1160 1161 ret_cnt = simple_read_from_buffer(user_buf, count, ppos, buf, len); 1162 1163 kfree(buf); 1164 return ret_cnt; 1165 } 1166 1167 static const struct file_operations fops_roam_table = { 1168 .read = ath6kl_roam_table_read, 1169 .open = ath6kl_debugfs_open, 1170 .owner = THIS_MODULE, 1171 .llseek = default_llseek, 1172 }; 1173 1174 static ssize_t ath6kl_force_roam_write(struct file *file, 1175 const char __user *user_buf, 1176 size_t count, loff_t *ppos) 1177 { 1178 struct ath6kl *ar = file->private_data; 1179 int ret; 1180 char buf[20]; 1181 size_t len; 1182 u8 bssid[ETH_ALEN]; 1183 int i; 1184 int addr[ETH_ALEN]; 1185 1186 len = min(count, sizeof(buf) - 1); 1187 if (copy_from_user(buf, user_buf, len)) 1188 return -EFAULT; 1189 buf[len] = '\0'; 1190 1191 if (sscanf(buf, "%02x:%02x:%02x:%02x:%02x:%02x", 1192 &addr[0], &addr[1], &addr[2], &addr[3], &addr[4], &addr[5]) 1193 != ETH_ALEN) 1194 return -EINVAL; 1195 for (i = 0; i < ETH_ALEN; i++) 1196 bssid[i] = addr[i]; 1197 1198 ret = ath6kl_wmi_force_roam_cmd(ar->wmi, bssid); 1199 if (ret) 1200 return ret; 1201 1202 return count; 1203 } 1204 1205 static const struct file_operations fops_force_roam = { 1206 .write = ath6kl_force_roam_write, 1207 .open = ath6kl_debugfs_open, 1208 .owner = THIS_MODULE, 1209 .llseek = default_llseek, 1210 }; 1211 1212 static ssize_t ath6kl_roam_mode_write(struct file *file, 1213 const char __user *user_buf, 1214 size_t count, loff_t *ppos) 1215 { 1216 struct ath6kl *ar = file->private_data; 1217 int ret; 1218 char buf[20]; 1219 size_t len; 1220 enum wmi_roam_mode mode; 1221 1222 len = min(count, sizeof(buf) - 1); 1223 if (copy_from_user(buf, user_buf, len)) 1224 return -EFAULT; 1225 buf[len] = '\0'; 1226 if (len > 0 && buf[len - 1] == '\n') 1227 buf[len - 1] = '\0'; 1228 1229 if (strcasecmp(buf, "default") == 0) 1230 mode = WMI_DEFAULT_ROAM_MODE; 1231 else if (strcasecmp(buf, "bssbias") == 0) 1232 mode = WMI_HOST_BIAS_ROAM_MODE; 1233 else if (strcasecmp(buf, "lock") == 0) 1234 mode = WMI_LOCK_BSS_MODE; 1235 else 1236 return -EINVAL; 1237 1238 ret = ath6kl_wmi_set_roam_mode_cmd(ar->wmi, mode); 1239 if (ret) 1240 return ret; 1241 1242 return count; 1243 } 1244 1245 static const struct file_operations fops_roam_mode = { 1246 .write = ath6kl_roam_mode_write, 1247 .open = ath6kl_debugfs_open, 1248 .owner = THIS_MODULE, 1249 .llseek = default_llseek, 1250 }; 1251 1252 void ath6kl_debug_set_keepalive(struct ath6kl *ar, u8 keepalive) 1253 { 1254 ar->debug.keepalive = keepalive; 1255 } 1256 1257 static ssize_t ath6kl_keepalive_read(struct file *file, char __user *user_buf, 1258 size_t count, loff_t *ppos) 1259 { 1260 struct ath6kl *ar = file->private_data; 1261 char buf[16]; 1262 int len; 1263 1264 len = snprintf(buf, sizeof(buf), "%u\n", ar->debug.keepalive); 1265 1266 return simple_read_from_buffer(user_buf, count, ppos, buf, len); 1267 } 1268 1269 static ssize_t ath6kl_keepalive_write(struct file *file, 1270 const char __user *user_buf, 1271 size_t count, loff_t *ppos) 1272 { 1273 struct ath6kl *ar = file->private_data; 1274 int ret; 1275 u8 val; 1276 1277 ret = kstrtou8_from_user(user_buf, count, 0, &val); 1278 if (ret) 1279 return ret; 1280 1281 ret = ath6kl_wmi_set_keepalive_cmd(ar->wmi, 0, val); 1282 if (ret) 1283 return ret; 1284 1285 return count; 1286 } 1287 1288 static const struct file_operations fops_keepalive = { 1289 .open = ath6kl_debugfs_open, 1290 .read = ath6kl_keepalive_read, 1291 .write = ath6kl_keepalive_write, 1292 .owner = THIS_MODULE, 1293 .llseek = default_llseek, 1294 }; 1295 1296 void ath6kl_debug_set_disconnect_timeout(struct ath6kl *ar, u8 timeout) 1297 { 1298 ar->debug.disc_timeout = timeout; 1299 } 1300 1301 static ssize_t ath6kl_disconnect_timeout_read(struct file *file, 1302 char __user *user_buf, 1303 size_t count, loff_t *ppos) 1304 { 1305 struct ath6kl *ar = file->private_data; 1306 char buf[16]; 1307 int len; 1308 1309 len = snprintf(buf, sizeof(buf), "%u\n", ar->debug.disc_timeout); 1310 1311 return simple_read_from_buffer(user_buf, count, ppos, buf, len); 1312 } 1313 1314 static ssize_t ath6kl_disconnect_timeout_write(struct file *file, 1315 const char __user *user_buf, 1316 size_t count, loff_t *ppos) 1317 { 1318 struct ath6kl *ar = file->private_data; 1319 int ret; 1320 u8 val; 1321 1322 ret = kstrtou8_from_user(user_buf, count, 0, &val); 1323 if (ret) 1324 return ret; 1325 1326 ret = ath6kl_wmi_disctimeout_cmd(ar->wmi, 0, val); 1327 if (ret) 1328 return ret; 1329 1330 return count; 1331 } 1332 1333 static const struct file_operations fops_disconnect_timeout = { 1334 .open = ath6kl_debugfs_open, 1335 .read = ath6kl_disconnect_timeout_read, 1336 .write = ath6kl_disconnect_timeout_write, 1337 .owner = THIS_MODULE, 1338 .llseek = default_llseek, 1339 }; 1340 1341 static ssize_t ath6kl_create_qos_write(struct file *file, 1342 const char __user *user_buf, 1343 size_t count, loff_t *ppos) 1344 { 1345 1346 struct ath6kl *ar = file->private_data; 1347 struct ath6kl_vif *vif; 1348 char buf[200]; 1349 ssize_t len; 1350 char *sptr, *token; 1351 struct wmi_create_pstream_cmd pstream; 1352 u32 val32; 1353 u16 val16; 1354 1355 vif = ath6kl_vif_first(ar); 1356 if (!vif) 1357 return -EIO; 1358 1359 len = min(count, sizeof(buf) - 1); 1360 if (copy_from_user(buf, user_buf, len)) 1361 return -EFAULT; 1362 buf[len] = '\0'; 1363 sptr = buf; 1364 1365 token = strsep(&sptr, " "); 1366 if (!token) 1367 return -EINVAL; 1368 if (kstrtou8(token, 0, &pstream.user_pri)) 1369 return -EINVAL; 1370 1371 token = strsep(&sptr, " "); 1372 if (!token) 1373 return -EINVAL; 1374 if (kstrtou8(token, 0, &pstream.traffic_direc)) 1375 return -EINVAL; 1376 1377 token = strsep(&sptr, " "); 1378 if (!token) 1379 return -EINVAL; 1380 if (kstrtou8(token, 0, &pstream.traffic_class)) 1381 return -EINVAL; 1382 1383 token = strsep(&sptr, " "); 1384 if (!token) 1385 return -EINVAL; 1386 if (kstrtou8(token, 0, &pstream.traffic_type)) 1387 return -EINVAL; 1388 1389 token = strsep(&sptr, " "); 1390 if (!token) 1391 return -EINVAL; 1392 if (kstrtou8(token, 0, &pstream.voice_psc_cap)) 1393 return -EINVAL; 1394 1395 token = strsep(&sptr, " "); 1396 if (!token) 1397 return -EINVAL; 1398 if (kstrtou32(token, 0, &val32)) 1399 return -EINVAL; 1400 pstream.min_service_int = cpu_to_le32(val32); 1401 1402 token = strsep(&sptr, " "); 1403 if (!token) 1404 return -EINVAL; 1405 if (kstrtou32(token, 0, &val32)) 1406 return -EINVAL; 1407 pstream.max_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.inactivity_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.suspension_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.service_start_time = cpu_to_le32(val32); 1429 1430 token = strsep(&sptr, " "); 1431 if (!token) 1432 return -EINVAL; 1433 if (kstrtou8(token, 0, &pstream.tsid)) 1434 return -EINVAL; 1435 1436 token = strsep(&sptr, " "); 1437 if (!token) 1438 return -EINVAL; 1439 if (kstrtou16(token, 0, &val16)) 1440 return -EINVAL; 1441 pstream.nominal_msdu = cpu_to_le16(val16); 1442 1443 token = strsep(&sptr, " "); 1444 if (!token) 1445 return -EINVAL; 1446 if (kstrtou16(token, 0, &val16)) 1447 return -EINVAL; 1448 pstream.max_msdu = cpu_to_le16(val16); 1449 1450 token = strsep(&sptr, " "); 1451 if (!token) 1452 return -EINVAL; 1453 if (kstrtou32(token, 0, &val32)) 1454 return -EINVAL; 1455 pstream.min_data_rate = cpu_to_le32(val32); 1456 1457 token = strsep(&sptr, " "); 1458 if (!token) 1459 return -EINVAL; 1460 if (kstrtou32(token, 0, &val32)) 1461 return -EINVAL; 1462 pstream.mean_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.peak_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.max_burst_size = 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.delay_bound = 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.min_phy_rate = 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.sba = 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.medium_time = cpu_to_le32(val32); 1505 1506 pstream.nominal_phy = le32_to_cpu(pstream.min_phy_rate) / 1000000; 1507 1508 ath6kl_wmi_create_pstream_cmd(ar->wmi, vif->fw_vif_idx, &pstream); 1509 1510 return count; 1511 } 1512 1513 static const struct file_operations fops_create_qos = { 1514 .write = ath6kl_create_qos_write, 1515 .open = ath6kl_debugfs_open, 1516 .owner = THIS_MODULE, 1517 .llseek = default_llseek, 1518 }; 1519 1520 static ssize_t ath6kl_delete_qos_write(struct file *file, 1521 const char __user *user_buf, 1522 size_t count, loff_t *ppos) 1523 { 1524 1525 struct ath6kl *ar = file->private_data; 1526 struct ath6kl_vif *vif; 1527 char buf[100]; 1528 ssize_t len; 1529 char *sptr, *token; 1530 u8 traffic_class; 1531 u8 tsid; 1532 1533 vif = ath6kl_vif_first(ar); 1534 if (!vif) 1535 return -EIO; 1536 1537 len = min(count, sizeof(buf) - 1); 1538 if (copy_from_user(buf, user_buf, len)) 1539 return -EFAULT; 1540 buf[len] = '\0'; 1541 sptr = buf; 1542 1543 token = strsep(&sptr, " "); 1544 if (!token) 1545 return -EINVAL; 1546 if (kstrtou8(token, 0, &traffic_class)) 1547 return -EINVAL; 1548 1549 token = strsep(&sptr, " "); 1550 if (!token) 1551 return -EINVAL; 1552 if (kstrtou8(token, 0, &tsid)) 1553 return -EINVAL; 1554 1555 ath6kl_wmi_delete_pstream_cmd(ar->wmi, vif->fw_vif_idx, 1556 traffic_class, tsid); 1557 1558 return count; 1559 } 1560 1561 static const struct file_operations fops_delete_qos = { 1562 .write = ath6kl_delete_qos_write, 1563 .open = ath6kl_debugfs_open, 1564 .owner = THIS_MODULE, 1565 .llseek = default_llseek, 1566 }; 1567 1568 static ssize_t ath6kl_bgscan_int_write(struct file *file, 1569 const char __user *user_buf, 1570 size_t count, loff_t *ppos) 1571 { 1572 struct ath6kl *ar = file->private_data; 1573 u16 bgscan_int; 1574 char buf[32]; 1575 ssize_t len; 1576 1577 len = min(count, sizeof(buf) - 1); 1578 if (copy_from_user(buf, user_buf, len)) 1579 return -EFAULT; 1580 1581 buf[len] = '\0'; 1582 if (kstrtou16(buf, 0, &bgscan_int)) 1583 return -EINVAL; 1584 1585 if (bgscan_int == 0) 1586 bgscan_int = 0xffff; 1587 1588 ath6kl_wmi_scanparams_cmd(ar->wmi, 0, 0, 0, bgscan_int, 0, 0, 0, 3, 1589 0, 0, 0); 1590 1591 return count; 1592 } 1593 1594 static const struct file_operations fops_bgscan_int = { 1595 .write = ath6kl_bgscan_int_write, 1596 .open = ath6kl_debugfs_open, 1597 .owner = THIS_MODULE, 1598 .llseek = default_llseek, 1599 }; 1600 1601 static ssize_t ath6kl_listen_int_write(struct file *file, 1602 const char __user *user_buf, 1603 size_t count, loff_t *ppos) 1604 { 1605 struct ath6kl *ar = file->private_data; 1606 struct ath6kl_vif *vif; 1607 u16 listen_interval; 1608 char buf[32]; 1609 ssize_t len; 1610 1611 vif = ath6kl_vif_first(ar); 1612 if (!vif) 1613 return -EIO; 1614 1615 len = min(count, sizeof(buf) - 1); 1616 if (copy_from_user(buf, user_buf, len)) 1617 return -EFAULT; 1618 1619 buf[len] = '\0'; 1620 if (kstrtou16(buf, 0, &listen_interval)) 1621 return -EINVAL; 1622 1623 if ((listen_interval < 15) || (listen_interval > 3000)) 1624 return -EINVAL; 1625 1626 vif->listen_intvl_t = listen_interval; 1627 ath6kl_wmi_listeninterval_cmd(ar->wmi, vif->fw_vif_idx, 1628 vif->listen_intvl_t, 0); 1629 1630 return count; 1631 } 1632 1633 static ssize_t ath6kl_listen_int_read(struct file *file, 1634 char __user *user_buf, 1635 size_t count, loff_t *ppos) 1636 { 1637 struct ath6kl *ar = file->private_data; 1638 struct ath6kl_vif *vif; 1639 char buf[32]; 1640 int len; 1641 1642 vif = ath6kl_vif_first(ar); 1643 if (!vif) 1644 return -EIO; 1645 1646 len = scnprintf(buf, sizeof(buf), "%u\n", vif->listen_intvl_t); 1647 1648 return simple_read_from_buffer(user_buf, count, ppos, buf, len); 1649 } 1650 1651 static const struct file_operations fops_listen_int = { 1652 .read = ath6kl_listen_int_read, 1653 .write = ath6kl_listen_int_write, 1654 .open = ath6kl_debugfs_open, 1655 .owner = THIS_MODULE, 1656 .llseek = default_llseek, 1657 }; 1658 1659 static ssize_t ath6kl_power_params_write(struct file *file, 1660 const char __user *user_buf, 1661 size_t count, loff_t *ppos) 1662 { 1663 struct ath6kl *ar = file->private_data; 1664 u8 buf[100]; 1665 unsigned int len = 0; 1666 char *sptr, *token; 1667 u16 idle_period, ps_poll_num, dtim, 1668 tx_wakeup, num_tx; 1669 1670 len = min(count, sizeof(buf) - 1); 1671 if (copy_from_user(buf, user_buf, len)) 1672 return -EFAULT; 1673 buf[len] = '\0'; 1674 sptr = buf; 1675 1676 token = strsep(&sptr, " "); 1677 if (!token) 1678 return -EINVAL; 1679 if (kstrtou16(token, 0, &idle_period)) 1680 return -EINVAL; 1681 1682 token = strsep(&sptr, " "); 1683 if (!token) 1684 return -EINVAL; 1685 if (kstrtou16(token, 0, &ps_poll_num)) 1686 return -EINVAL; 1687 1688 token = strsep(&sptr, " "); 1689 if (!token) 1690 return -EINVAL; 1691 if (kstrtou16(token, 0, &dtim)) 1692 return -EINVAL; 1693 1694 token = strsep(&sptr, " "); 1695 if (!token) 1696 return -EINVAL; 1697 if (kstrtou16(token, 0, &tx_wakeup)) 1698 return -EINVAL; 1699 1700 token = strsep(&sptr, " "); 1701 if (!token) 1702 return -EINVAL; 1703 if (kstrtou16(token, 0, &num_tx)) 1704 return -EINVAL; 1705 1706 ath6kl_wmi_pmparams_cmd(ar->wmi, 0, idle_period, ps_poll_num, 1707 dtim, tx_wakeup, num_tx, 0); 1708 1709 return count; 1710 } 1711 1712 static const struct file_operations fops_power_params = { 1713 .write = ath6kl_power_params_write, 1714 .open = ath6kl_debugfs_open, 1715 .owner = THIS_MODULE, 1716 .llseek = default_llseek, 1717 }; 1718 1719 void ath6kl_debug_init(struct ath6kl *ar) 1720 { 1721 skb_queue_head_init(&ar->debug.fwlog_queue); 1722 init_completion(&ar->debug.fwlog_completion); 1723 1724 /* 1725 * Actually we are lying here but don't know how to read the mask 1726 * value from the firmware. 1727 */ 1728 ar->debug.fwlog_mask = 0; 1729 } 1730 1731 /* 1732 * Initialisation needs to happen in two stages as fwlog events can come 1733 * before cfg80211 is initialised, and debugfs depends on cfg80211 1734 * initialisation. 1735 */ 1736 int ath6kl_debug_init_fs(struct ath6kl *ar) 1737 { 1738 ar->debugfs_phy = debugfs_create_dir("ath6kl", 1739 ar->wiphy->debugfsdir); 1740 if (!ar->debugfs_phy) 1741 return -ENOMEM; 1742 1743 debugfs_create_file("tgt_stats", S_IRUSR, ar->debugfs_phy, ar, 1744 &fops_tgt_stats); 1745 1746 debugfs_create_file("credit_dist_stats", S_IRUSR, ar->debugfs_phy, ar, 1747 &fops_credit_dist_stats); 1748 1749 debugfs_create_file("endpoint_stats", S_IRUSR | S_IWUSR, 1750 ar->debugfs_phy, ar, &fops_endpoint_stats); 1751 1752 debugfs_create_file("fwlog", S_IRUSR, ar->debugfs_phy, ar, 1753 &fops_fwlog); 1754 1755 debugfs_create_file("fwlog_block", S_IRUSR, ar->debugfs_phy, ar, 1756 &fops_fwlog_block); 1757 1758 debugfs_create_file("fwlog_mask", S_IRUSR | S_IWUSR, ar->debugfs_phy, 1759 ar, &fops_fwlog_mask); 1760 1761 debugfs_create_file("reg_addr", S_IRUSR | S_IWUSR, ar->debugfs_phy, ar, 1762 &fops_diag_reg_read); 1763 1764 debugfs_create_file("reg_dump", S_IRUSR, ar->debugfs_phy, ar, 1765 &fops_reg_dump); 1766 1767 debugfs_create_file("lrssi_roam_threshold", S_IRUSR | S_IWUSR, 1768 ar->debugfs_phy, ar, &fops_lrssi_roam_threshold); 1769 1770 debugfs_create_file("reg_write", S_IRUSR | S_IWUSR, 1771 ar->debugfs_phy, ar, &fops_diag_reg_write); 1772 1773 debugfs_create_file("war_stats", S_IRUSR, ar->debugfs_phy, ar, 1774 &fops_war_stats); 1775 1776 debugfs_create_file("roam_table", S_IRUSR, ar->debugfs_phy, ar, 1777 &fops_roam_table); 1778 1779 debugfs_create_file("force_roam", S_IWUSR, ar->debugfs_phy, ar, 1780 &fops_force_roam); 1781 1782 debugfs_create_file("roam_mode", S_IWUSR, ar->debugfs_phy, ar, 1783 &fops_roam_mode); 1784 1785 debugfs_create_file("keepalive", S_IRUSR | S_IWUSR, ar->debugfs_phy, ar, 1786 &fops_keepalive); 1787 1788 debugfs_create_file("disconnect_timeout", S_IRUSR | S_IWUSR, 1789 ar->debugfs_phy, ar, &fops_disconnect_timeout); 1790 1791 debugfs_create_file("create_qos", S_IWUSR, ar->debugfs_phy, ar, 1792 &fops_create_qos); 1793 1794 debugfs_create_file("delete_qos", S_IWUSR, ar->debugfs_phy, ar, 1795 &fops_delete_qos); 1796 1797 debugfs_create_file("bgscan_interval", S_IWUSR, 1798 ar->debugfs_phy, ar, &fops_bgscan_int); 1799 1800 debugfs_create_file("listen_interval", S_IRUSR | S_IWUSR, 1801 ar->debugfs_phy, ar, &fops_listen_int); 1802 1803 debugfs_create_file("power_params", S_IWUSR, ar->debugfs_phy, ar, 1804 &fops_power_params); 1805 1806 return 0; 1807 } 1808 1809 void ath6kl_debug_cleanup(struct ath6kl *ar) 1810 { 1811 skb_queue_purge(&ar->debug.fwlog_queue); 1812 kfree(ar->debug.roam_tbl); 1813 } 1814 1815 #endif 1816