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 vfree(buf); 412 return ret; 413 } 414 415 spin_lock(&ar->debug.fwlog_queue.lock); 416 } 417 418 while ((skb = __skb_dequeue(&ar->debug.fwlog_queue))) { 419 if (skb->len > count - len) { 420 /* not enough space, put skb back and leave */ 421 __skb_queue_head(&ar->debug.fwlog_queue, skb); 422 break; 423 } 424 425 426 memcpy(buf + len, skb->data, skb->len); 427 len += skb->len; 428 429 kfree_skb(skb); 430 } 431 432 spin_unlock(&ar->debug.fwlog_queue.lock); 433 434 /* FIXME: what to do if len == 0? */ 435 436 not_copied = copy_to_user(user_buf, buf, len); 437 if (not_copied != 0) { 438 ret_cnt = -EFAULT; 439 goto out; 440 } 441 442 *ppos = *ppos + len; 443 444 ret_cnt = len; 445 446 out: 447 vfree(buf); 448 449 return ret_cnt; 450 } 451 452 static const struct file_operations fops_fwlog_block = { 453 .open = ath6kl_fwlog_open, 454 .release = ath6kl_fwlog_release, 455 .read = ath6kl_fwlog_block_read, 456 .owner = THIS_MODULE, 457 .llseek = default_llseek, 458 }; 459 460 static ssize_t ath6kl_fwlog_mask_read(struct file *file, char __user *user_buf, 461 size_t count, loff_t *ppos) 462 { 463 struct ath6kl *ar = file->private_data; 464 char buf[16]; 465 int len; 466 467 len = snprintf(buf, sizeof(buf), "0x%x\n", ar->debug.fwlog_mask); 468 469 return simple_read_from_buffer(user_buf, count, ppos, buf, len); 470 } 471 472 static ssize_t ath6kl_fwlog_mask_write(struct file *file, 473 const char __user *user_buf, 474 size_t count, loff_t *ppos) 475 { 476 struct ath6kl *ar = file->private_data; 477 int ret; 478 479 ret = kstrtou32_from_user(user_buf, count, 0, &ar->debug.fwlog_mask); 480 if (ret) 481 return ret; 482 483 ret = ath6kl_wmi_config_debug_module_cmd(ar->wmi, 484 ATH6KL_FWLOG_VALID_MASK, 485 ar->debug.fwlog_mask); 486 if (ret) 487 return ret; 488 489 return count; 490 } 491 492 static const struct file_operations fops_fwlog_mask = { 493 .open = ath6kl_debugfs_open, 494 .read = ath6kl_fwlog_mask_read, 495 .write = ath6kl_fwlog_mask_write, 496 .owner = THIS_MODULE, 497 .llseek = default_llseek, 498 }; 499 500 static ssize_t read_file_tgt_stats(struct file *file, char __user *user_buf, 501 size_t count, loff_t *ppos) 502 { 503 struct ath6kl *ar = file->private_data; 504 struct ath6kl_vif *vif; 505 struct target_stats *tgt_stats; 506 char *buf; 507 unsigned int len = 0, buf_len = 1500; 508 int i; 509 long left; 510 ssize_t ret_cnt; 511 512 vif = ath6kl_vif_first(ar); 513 if (!vif) 514 return -EIO; 515 516 tgt_stats = &vif->target_stats; 517 518 buf = kzalloc(buf_len, GFP_KERNEL); 519 if (!buf) 520 return -ENOMEM; 521 522 if (down_interruptible(&ar->sem)) { 523 kfree(buf); 524 return -EBUSY; 525 } 526 527 set_bit(STATS_UPDATE_PEND, &vif->flags); 528 529 if (ath6kl_wmi_get_stats_cmd(ar->wmi, 0)) { 530 up(&ar->sem); 531 kfree(buf); 532 return -EIO; 533 } 534 535 left = wait_event_interruptible_timeout(ar->event_wq, 536 !test_bit(STATS_UPDATE_PEND, 537 &vif->flags), WMI_TIMEOUT); 538 539 up(&ar->sem); 540 541 if (left <= 0) { 542 kfree(buf); 543 return -ETIMEDOUT; 544 } 545 546 len += scnprintf(buf + len, buf_len - len, "\n"); 547 len += scnprintf(buf + len, buf_len - len, "%25s\n", 548 "Target Tx stats"); 549 len += scnprintf(buf + len, buf_len - len, "%25s\n\n", 550 "================="); 551 len += scnprintf(buf + len, buf_len - len, "%20s %10llu\n", 552 "Ucast packets", tgt_stats->tx_ucast_pkt); 553 len += scnprintf(buf + len, buf_len - len, "%20s %10llu\n", 554 "Bcast packets", tgt_stats->tx_bcast_pkt); 555 len += scnprintf(buf + len, buf_len - len, "%20s %10llu\n", 556 "Ucast byte", tgt_stats->tx_ucast_byte); 557 len += scnprintf(buf + len, buf_len - len, "%20s %10llu\n", 558 "Bcast byte", tgt_stats->tx_bcast_byte); 559 len += scnprintf(buf + len, buf_len - len, "%20s %10llu\n", 560 "Rts success cnt", tgt_stats->tx_rts_success_cnt); 561 for (i = 0; i < 4; i++) 562 len += scnprintf(buf + len, buf_len - len, 563 "%18s %d %10llu\n", "PER on ac", 564 i, tgt_stats->tx_pkt_per_ac[i]); 565 len += scnprintf(buf + len, buf_len - len, "%20s %10llu\n", 566 "Error", tgt_stats->tx_err); 567 len += scnprintf(buf + len, buf_len - len, "%20s %10llu\n", 568 "Fail count", tgt_stats->tx_fail_cnt); 569 len += scnprintf(buf + len, buf_len - len, "%20s %10llu\n", 570 "Retry count", tgt_stats->tx_retry_cnt); 571 len += scnprintf(buf + len, buf_len - len, "%20s %10llu\n", 572 "Multi retry cnt", tgt_stats->tx_mult_retry_cnt); 573 len += scnprintf(buf + len, buf_len - len, "%20s %10llu\n", 574 "Rts fail cnt", tgt_stats->tx_rts_fail_cnt); 575 len += scnprintf(buf + len, buf_len - len, "%25s %10llu\n\n", 576 "TKIP counter measure used", 577 tgt_stats->tkip_cnter_measures_invoked); 578 579 len += scnprintf(buf + len, buf_len - len, "%25s\n", 580 "Target Rx stats"); 581 len += scnprintf(buf + len, buf_len - len, "%25s\n", 582 "================="); 583 584 len += scnprintf(buf + len, buf_len - len, "%20s %10llu\n", 585 "Ucast packets", tgt_stats->rx_ucast_pkt); 586 len += scnprintf(buf + len, buf_len - len, "%20s %10d\n", 587 "Ucast Rate", tgt_stats->rx_ucast_rate); 588 len += scnprintf(buf + len, buf_len - len, "%20s %10llu\n", 589 "Bcast packets", tgt_stats->rx_bcast_pkt); 590 len += scnprintf(buf + len, buf_len - len, "%20s %10llu\n", 591 "Ucast byte", tgt_stats->rx_ucast_byte); 592 len += scnprintf(buf + len, buf_len - len, "%20s %10llu\n", 593 "Bcast byte", tgt_stats->rx_bcast_byte); 594 len += scnprintf(buf + len, buf_len - len, "%20s %10llu\n", 595 "Fragmented pkt", tgt_stats->rx_frgment_pkt); 596 len += scnprintf(buf + len, buf_len - len, "%20s %10llu\n", 597 "Error", tgt_stats->rx_err); 598 len += scnprintf(buf + len, buf_len - len, "%20s %10llu\n", 599 "CRC Err", tgt_stats->rx_crc_err); 600 len += scnprintf(buf + len, buf_len - len, "%20s %10llu\n", 601 "Key chache miss", tgt_stats->rx_key_cache_miss); 602 len += scnprintf(buf + len, buf_len - len, "%20s %10llu\n", 603 "Decrypt Err", tgt_stats->rx_decrypt_err); 604 len += scnprintf(buf + len, buf_len - len, "%20s %10llu\n", 605 "Duplicate frame", tgt_stats->rx_dupl_frame); 606 len += scnprintf(buf + len, buf_len - len, "%20s %10llu\n", 607 "Tkip Mic failure", tgt_stats->tkip_local_mic_fail); 608 len += scnprintf(buf + len, buf_len - len, "%20s %10llu\n", 609 "TKIP format err", tgt_stats->tkip_fmt_err); 610 len += scnprintf(buf + len, buf_len - len, "%20s %10llu\n", 611 "CCMP format Err", tgt_stats->ccmp_fmt_err); 612 len += scnprintf(buf + len, buf_len - len, "%20s %10llu\n\n", 613 "CCMP Replay Err", tgt_stats->ccmp_replays); 614 615 len += scnprintf(buf + len, buf_len - len, "%25s\n", 616 "Misc Target stats"); 617 len += scnprintf(buf + len, buf_len - len, "%25s\n", 618 "================="); 619 len += scnprintf(buf + len, buf_len - len, "%20s %10llu\n", 620 "Beacon Miss count", tgt_stats->cs_bmiss_cnt); 621 len += scnprintf(buf + len, buf_len - len, "%20s %10llu\n", 622 "Num Connects", tgt_stats->cs_connect_cnt); 623 len += scnprintf(buf + len, buf_len - len, "%20s %10llu\n", 624 "Num disconnects", tgt_stats->cs_discon_cnt); 625 len += scnprintf(buf + len, buf_len - len, "%20s %10d\n", 626 "Beacon avg rssi", tgt_stats->cs_ave_beacon_rssi); 627 len += scnprintf(buf + len, buf_len - len, "%20s %10d\n", 628 "ARP pkt received", tgt_stats->arp_received); 629 len += scnprintf(buf + len, buf_len - len, "%20s %10d\n", 630 "ARP pkt matched", tgt_stats->arp_matched); 631 len += scnprintf(buf + len, buf_len - len, "%20s %10d\n", 632 "ARP pkt replied", tgt_stats->arp_replied); 633 634 if (len > buf_len) 635 len = buf_len; 636 637 ret_cnt = simple_read_from_buffer(user_buf, count, ppos, buf, len); 638 639 kfree(buf); 640 return ret_cnt; 641 } 642 643 static const struct file_operations fops_tgt_stats = { 644 .read = read_file_tgt_stats, 645 .open = ath6kl_debugfs_open, 646 .owner = THIS_MODULE, 647 .llseek = default_llseek, 648 }; 649 650 #define print_credit_info(fmt_str, ep_list_field) \ 651 (len += scnprintf(buf + len, buf_len - len, fmt_str, \ 652 ep_list->ep_list_field)) 653 #define CREDIT_INFO_DISPLAY_STRING_LEN 200 654 #define CREDIT_INFO_LEN 128 655 656 static ssize_t read_file_credit_dist_stats(struct file *file, 657 char __user *user_buf, 658 size_t count, loff_t *ppos) 659 { 660 struct ath6kl *ar = file->private_data; 661 struct htc_target *target = ar->htc_target; 662 struct htc_endpoint_credit_dist *ep_list; 663 char *buf; 664 unsigned int buf_len, len = 0; 665 ssize_t ret_cnt; 666 667 buf_len = CREDIT_INFO_DISPLAY_STRING_LEN + 668 get_queue_depth(&target->cred_dist_list) * CREDIT_INFO_LEN; 669 buf = kzalloc(buf_len, GFP_KERNEL); 670 if (!buf) 671 return -ENOMEM; 672 673 len += scnprintf(buf + len, buf_len - len, "%25s%5d\n", 674 "Total Avail Credits: ", 675 target->credit_info->total_avail_credits); 676 len += scnprintf(buf + len, buf_len - len, "%25s%5d\n", 677 "Free credits :", 678 target->credit_info->cur_free_credits); 679 680 len += scnprintf(buf + len, buf_len - len, 681 " Epid Flags Cred_norm Cred_min Credits Cred_assngd" 682 " Seek_cred Cred_sz Cred_per_msg Cred_to_dist" 683 " qdepth\n"); 684 685 list_for_each_entry(ep_list, &target->cred_dist_list, list) { 686 print_credit_info(" %2d", endpoint); 687 print_credit_info("%10x", dist_flags); 688 print_credit_info("%8d", cred_norm); 689 print_credit_info("%9d", cred_min); 690 print_credit_info("%9d", credits); 691 print_credit_info("%10d", cred_assngd); 692 print_credit_info("%13d", seek_cred); 693 print_credit_info("%12d", cred_sz); 694 print_credit_info("%9d", cred_per_msg); 695 print_credit_info("%14d", cred_to_dist); 696 len += scnprintf(buf + len, buf_len - len, "%12d\n", 697 get_queue_depth(&ep_list->htc_ep->txq)); 698 } 699 700 if (len > buf_len) 701 len = buf_len; 702 703 ret_cnt = simple_read_from_buffer(user_buf, count, ppos, buf, len); 704 kfree(buf); 705 return ret_cnt; 706 } 707 708 static const struct file_operations fops_credit_dist_stats = { 709 .read = read_file_credit_dist_stats, 710 .open = ath6kl_debugfs_open, 711 .owner = THIS_MODULE, 712 .llseek = default_llseek, 713 }; 714 715 static unsigned int print_endpoint_stat(struct htc_target *target, char *buf, 716 unsigned int buf_len, unsigned int len, 717 int offset, const char *name) 718 { 719 int i; 720 struct htc_endpoint_stats *ep_st; 721 u32 *counter; 722 723 len += scnprintf(buf + len, buf_len - len, "%s:", name); 724 for (i = 0; i < ENDPOINT_MAX; i++) { 725 ep_st = &target->endpoint[i].ep_st; 726 counter = ((u32 *) ep_st) + (offset / 4); 727 len += scnprintf(buf + len, buf_len - len, " %u", *counter); 728 } 729 len += scnprintf(buf + len, buf_len - len, "\n"); 730 731 return len; 732 } 733 734 static ssize_t ath6kl_endpoint_stats_read(struct file *file, 735 char __user *user_buf, 736 size_t count, loff_t *ppos) 737 { 738 struct ath6kl *ar = file->private_data; 739 struct htc_target *target = ar->htc_target; 740 char *buf; 741 unsigned int buf_len, len = 0; 742 ssize_t ret_cnt; 743 744 buf_len = sizeof(struct htc_endpoint_stats) / sizeof(u32) * 745 (25 + ENDPOINT_MAX * 11); 746 buf = kmalloc(buf_len, GFP_KERNEL); 747 if (!buf) 748 return -ENOMEM; 749 750 #define EPSTAT(name) \ 751 do { \ 752 len = print_endpoint_stat(target, buf, buf_len, len, \ 753 offsetof(struct htc_endpoint_stats, \ 754 name), \ 755 #name); \ 756 } while (0) 757 758 EPSTAT(cred_low_indicate); 759 EPSTAT(tx_issued); 760 EPSTAT(tx_pkt_bundled); 761 EPSTAT(tx_bundles); 762 EPSTAT(tx_dropped); 763 EPSTAT(tx_cred_rpt); 764 EPSTAT(cred_rpt_from_rx); 765 EPSTAT(cred_rpt_from_other); 766 EPSTAT(cred_rpt_ep0); 767 EPSTAT(cred_from_rx); 768 EPSTAT(cred_from_other); 769 EPSTAT(cred_from_ep0); 770 EPSTAT(cred_cosumd); 771 EPSTAT(cred_retnd); 772 EPSTAT(rx_pkts); 773 EPSTAT(rx_lkahds); 774 EPSTAT(rx_bundl); 775 EPSTAT(rx_bundle_lkahd); 776 EPSTAT(rx_bundle_from_hdr); 777 EPSTAT(rx_alloc_thresh_hit); 778 EPSTAT(rxalloc_thresh_byte); 779 #undef EPSTAT 780 781 if (len > buf_len) 782 len = buf_len; 783 784 ret_cnt = simple_read_from_buffer(user_buf, count, ppos, buf, len); 785 kfree(buf); 786 return ret_cnt; 787 } 788 789 static ssize_t ath6kl_endpoint_stats_write(struct file *file, 790 const char __user *user_buf, 791 size_t count, loff_t *ppos) 792 { 793 struct ath6kl *ar = file->private_data; 794 struct htc_target *target = ar->htc_target; 795 int ret, i; 796 u32 val; 797 struct htc_endpoint_stats *ep_st; 798 799 ret = kstrtou32_from_user(user_buf, count, 0, &val); 800 if (ret) 801 return ret; 802 if (val == 0) { 803 for (i = 0; i < ENDPOINT_MAX; i++) { 804 ep_st = &target->endpoint[i].ep_st; 805 memset(ep_st, 0, sizeof(*ep_st)); 806 } 807 } 808 809 return count; 810 } 811 812 static const struct file_operations fops_endpoint_stats = { 813 .open = ath6kl_debugfs_open, 814 .read = ath6kl_endpoint_stats_read, 815 .write = ath6kl_endpoint_stats_write, 816 .owner = THIS_MODULE, 817 .llseek = default_llseek, 818 }; 819 820 static unsigned long ath6kl_get_num_reg(void) 821 { 822 int i; 823 unsigned long n_reg = 0; 824 825 for (i = 0; i < ARRAY_SIZE(diag_reg); i++) 826 n_reg = n_reg + 827 (diag_reg[i].reg_end - diag_reg[i].reg_start) / 4 + 1; 828 829 return n_reg; 830 } 831 832 static bool ath6kl_dbg_is_diag_reg_valid(u32 reg_addr) 833 { 834 int i; 835 836 for (i = 0; i < ARRAY_SIZE(diag_reg); i++) { 837 if (reg_addr >= diag_reg[i].reg_start && 838 reg_addr <= diag_reg[i].reg_end) 839 return true; 840 } 841 842 return false; 843 } 844 845 static ssize_t ath6kl_regread_read(struct file *file, char __user *user_buf, 846 size_t count, loff_t *ppos) 847 { 848 struct ath6kl *ar = file->private_data; 849 u8 buf[50]; 850 unsigned int len = 0; 851 852 if (ar->debug.dbgfs_diag_reg) 853 len += scnprintf(buf + len, sizeof(buf) - len, "0x%x\n", 854 ar->debug.dbgfs_diag_reg); 855 else 856 len += scnprintf(buf + len, sizeof(buf) - len, 857 "All diag registers\n"); 858 859 return simple_read_from_buffer(user_buf, count, ppos, buf, len); 860 } 861 862 static ssize_t ath6kl_regread_write(struct file *file, 863 const char __user *user_buf, 864 size_t count, loff_t *ppos) 865 { 866 struct ath6kl *ar = file->private_data; 867 unsigned long reg_addr; 868 869 if (kstrtoul_from_user(user_buf, count, 0, ®_addr)) 870 return -EINVAL; 871 872 if ((reg_addr % 4) != 0) 873 return -EINVAL; 874 875 if (reg_addr && !ath6kl_dbg_is_diag_reg_valid(reg_addr)) 876 return -EINVAL; 877 878 ar->debug.dbgfs_diag_reg = reg_addr; 879 880 return count; 881 } 882 883 static const struct file_operations fops_diag_reg_read = { 884 .read = ath6kl_regread_read, 885 .write = ath6kl_regread_write, 886 .open = ath6kl_debugfs_open, 887 .owner = THIS_MODULE, 888 .llseek = default_llseek, 889 }; 890 891 static int ath6kl_regdump_open(struct inode *inode, struct file *file) 892 { 893 struct ath6kl *ar = inode->i_private; 894 u8 *buf; 895 unsigned long int reg_len; 896 unsigned int len = 0, n_reg; 897 u32 addr; 898 __le32 reg_val; 899 int i, status; 900 901 /* Dump all the registers if no register is specified */ 902 if (!ar->debug.dbgfs_diag_reg) 903 n_reg = ath6kl_get_num_reg(); 904 else 905 n_reg = 1; 906 907 reg_len = n_reg * REG_OUTPUT_LEN_PER_LINE; 908 if (n_reg > 1) 909 reg_len += REGTYPE_STR_LEN; 910 911 buf = vmalloc(reg_len); 912 if (!buf) 913 return -ENOMEM; 914 915 if (n_reg == 1) { 916 addr = ar->debug.dbgfs_diag_reg; 917 918 status = ath6kl_diag_read32(ar, 919 TARG_VTOP(ar->target_type, addr), 920 (u32 *)®_val); 921 if (status) 922 goto fail_reg_read; 923 924 len += scnprintf(buf + len, reg_len - len, 925 "0x%06x 0x%08x\n", addr, le32_to_cpu(reg_val)); 926 goto done; 927 } 928 929 for (i = 0; i < ARRAY_SIZE(diag_reg); i++) { 930 len += scnprintf(buf + len, reg_len - len, 931 "%s\n", diag_reg[i].reg_info); 932 for (addr = diag_reg[i].reg_start; 933 addr <= diag_reg[i].reg_end; addr += 4) { 934 status = ath6kl_diag_read32(ar, 935 TARG_VTOP(ar->target_type, addr), 936 (u32 *)®_val); 937 if (status) 938 goto fail_reg_read; 939 940 len += scnprintf(buf + len, reg_len - len, 941 "0x%06x 0x%08x\n", 942 addr, le32_to_cpu(reg_val)); 943 } 944 } 945 946 done: 947 file->private_data = buf; 948 return 0; 949 950 fail_reg_read: 951 ath6kl_warn("Unable to read memory:%u\n", addr); 952 vfree(buf); 953 return -EIO; 954 } 955 956 static ssize_t ath6kl_regdump_read(struct file *file, char __user *user_buf, 957 size_t count, loff_t *ppos) 958 { 959 u8 *buf = file->private_data; 960 return simple_read_from_buffer(user_buf, count, ppos, buf, strlen(buf)); 961 } 962 963 static int ath6kl_regdump_release(struct inode *inode, struct file *file) 964 { 965 vfree(file->private_data); 966 return 0; 967 } 968 969 static const struct file_operations fops_reg_dump = { 970 .open = ath6kl_regdump_open, 971 .read = ath6kl_regdump_read, 972 .release = ath6kl_regdump_release, 973 .owner = THIS_MODULE, 974 .llseek = default_llseek, 975 }; 976 977 static ssize_t ath6kl_lrssi_roam_write(struct file *file, 978 const char __user *user_buf, 979 size_t count, loff_t *ppos) 980 { 981 struct ath6kl *ar = file->private_data; 982 unsigned long lrssi_roam_threshold; 983 984 if (kstrtoul_from_user(user_buf, count, 0, &lrssi_roam_threshold)) 985 return -EINVAL; 986 987 ar->lrssi_roam_threshold = lrssi_roam_threshold; 988 989 ath6kl_wmi_set_roam_lrssi_cmd(ar->wmi, ar->lrssi_roam_threshold); 990 991 return count; 992 } 993 994 static ssize_t ath6kl_lrssi_roam_read(struct file *file, 995 char __user *user_buf, 996 size_t count, loff_t *ppos) 997 { 998 struct ath6kl *ar = file->private_data; 999 char buf[32]; 1000 unsigned int len; 1001 1002 len = snprintf(buf, sizeof(buf), "%u\n", ar->lrssi_roam_threshold); 1003 1004 return simple_read_from_buffer(user_buf, count, ppos, buf, len); 1005 } 1006 1007 static const struct file_operations fops_lrssi_roam_threshold = { 1008 .read = ath6kl_lrssi_roam_read, 1009 .write = ath6kl_lrssi_roam_write, 1010 .open = ath6kl_debugfs_open, 1011 .owner = THIS_MODULE, 1012 .llseek = default_llseek, 1013 }; 1014 1015 static ssize_t ath6kl_regwrite_read(struct file *file, 1016 char __user *user_buf, 1017 size_t count, loff_t *ppos) 1018 { 1019 struct ath6kl *ar = file->private_data; 1020 u8 buf[32]; 1021 unsigned int len = 0; 1022 1023 len = scnprintf(buf, sizeof(buf), "Addr: 0x%x Val: 0x%x\n", 1024 ar->debug.diag_reg_addr_wr, ar->debug.diag_reg_val_wr); 1025 1026 return simple_read_from_buffer(user_buf, count, ppos, buf, len); 1027 } 1028 1029 static ssize_t ath6kl_regwrite_write(struct file *file, 1030 const char __user *user_buf, 1031 size_t count, loff_t *ppos) 1032 { 1033 struct ath6kl *ar = file->private_data; 1034 char buf[32]; 1035 char *sptr, *token; 1036 unsigned int len = 0; 1037 u32 reg_addr, reg_val; 1038 1039 len = min(count, sizeof(buf) - 1); 1040 if (copy_from_user(buf, user_buf, len)) 1041 return -EFAULT; 1042 1043 buf[len] = '\0'; 1044 sptr = buf; 1045 1046 token = strsep(&sptr, "="); 1047 if (!token) 1048 return -EINVAL; 1049 1050 if (kstrtou32(token, 0, ®_addr)) 1051 return -EINVAL; 1052 1053 if (!ath6kl_dbg_is_diag_reg_valid(reg_addr)) 1054 return -EINVAL; 1055 1056 if (kstrtou32(sptr, 0, ®_val)) 1057 return -EINVAL; 1058 1059 ar->debug.diag_reg_addr_wr = reg_addr; 1060 ar->debug.diag_reg_val_wr = reg_val; 1061 1062 if (ath6kl_diag_write32(ar, ar->debug.diag_reg_addr_wr, 1063 cpu_to_le32(ar->debug.diag_reg_val_wr))) 1064 return -EIO; 1065 1066 return count; 1067 } 1068 1069 static const struct file_operations fops_diag_reg_write = { 1070 .read = ath6kl_regwrite_read, 1071 .write = ath6kl_regwrite_write, 1072 .open = ath6kl_debugfs_open, 1073 .owner = THIS_MODULE, 1074 .llseek = default_llseek, 1075 }; 1076 1077 int ath6kl_debug_roam_tbl_event(struct ath6kl *ar, const void *buf, 1078 size_t len) 1079 { 1080 const struct wmi_target_roam_tbl *tbl; 1081 u16 num_entries; 1082 1083 if (len < sizeof(*tbl)) 1084 return -EINVAL; 1085 1086 tbl = (const struct wmi_target_roam_tbl *) buf; 1087 num_entries = le16_to_cpu(tbl->num_entries); 1088 if (sizeof(*tbl) + num_entries * sizeof(struct wmi_bss_roam_info) > 1089 len) 1090 return -EINVAL; 1091 1092 if (ar->debug.roam_tbl == NULL || 1093 ar->debug.roam_tbl_len < (unsigned int) len) { 1094 kfree(ar->debug.roam_tbl); 1095 ar->debug.roam_tbl = kmalloc(len, GFP_ATOMIC); 1096 if (ar->debug.roam_tbl == NULL) 1097 return -ENOMEM; 1098 } 1099 1100 memcpy(ar->debug.roam_tbl, buf, len); 1101 ar->debug.roam_tbl_len = len; 1102 1103 if (test_bit(ROAM_TBL_PEND, &ar->flag)) { 1104 clear_bit(ROAM_TBL_PEND, &ar->flag); 1105 wake_up(&ar->event_wq); 1106 } 1107 1108 return 0; 1109 } 1110 1111 static ssize_t ath6kl_roam_table_read(struct file *file, char __user *user_buf, 1112 size_t count, loff_t *ppos) 1113 { 1114 struct ath6kl *ar = file->private_data; 1115 int ret; 1116 long left; 1117 struct wmi_target_roam_tbl *tbl; 1118 u16 num_entries, i; 1119 char *buf; 1120 unsigned int len, buf_len; 1121 ssize_t ret_cnt; 1122 1123 if (down_interruptible(&ar->sem)) 1124 return -EBUSY; 1125 1126 set_bit(ROAM_TBL_PEND, &ar->flag); 1127 1128 ret = ath6kl_wmi_get_roam_tbl_cmd(ar->wmi); 1129 if (ret) { 1130 up(&ar->sem); 1131 return ret; 1132 } 1133 1134 left = wait_event_interruptible_timeout( 1135 ar->event_wq, !test_bit(ROAM_TBL_PEND, &ar->flag), WMI_TIMEOUT); 1136 up(&ar->sem); 1137 1138 if (left <= 0) 1139 return -ETIMEDOUT; 1140 1141 if (ar->debug.roam_tbl == NULL) 1142 return -ENOMEM; 1143 1144 tbl = (struct wmi_target_roam_tbl *) ar->debug.roam_tbl; 1145 num_entries = le16_to_cpu(tbl->num_entries); 1146 1147 buf_len = 100 + num_entries * 100; 1148 buf = kzalloc(buf_len, GFP_KERNEL); 1149 if (buf == NULL) 1150 return -ENOMEM; 1151 len = 0; 1152 len += scnprintf(buf + len, buf_len - len, 1153 "roam_mode=%u\n\n" 1154 "# roam_util bssid rssi rssidt last_rssi util bias\n", 1155 le16_to_cpu(tbl->roam_mode)); 1156 1157 for (i = 0; i < num_entries; i++) { 1158 struct wmi_bss_roam_info *info = &tbl->info[i]; 1159 len += scnprintf(buf + len, buf_len - len, 1160 "%d %pM %d %d %d %d %d\n", 1161 a_sle32_to_cpu(info->roam_util), info->bssid, 1162 info->rssi, info->rssidt, info->last_rssi, 1163 info->util, info->bias); 1164 } 1165 1166 if (len > buf_len) 1167 len = buf_len; 1168 1169 ret_cnt = simple_read_from_buffer(user_buf, count, ppos, buf, len); 1170 1171 kfree(buf); 1172 return ret_cnt; 1173 } 1174 1175 static const struct file_operations fops_roam_table = { 1176 .read = ath6kl_roam_table_read, 1177 .open = ath6kl_debugfs_open, 1178 .owner = THIS_MODULE, 1179 .llseek = default_llseek, 1180 }; 1181 1182 static ssize_t ath6kl_force_roam_write(struct file *file, 1183 const char __user *user_buf, 1184 size_t count, loff_t *ppos) 1185 { 1186 struct ath6kl *ar = file->private_data; 1187 int ret; 1188 char buf[20]; 1189 size_t len; 1190 u8 bssid[ETH_ALEN]; 1191 int i; 1192 int addr[ETH_ALEN]; 1193 1194 len = min(count, sizeof(buf) - 1); 1195 if (copy_from_user(buf, user_buf, len)) 1196 return -EFAULT; 1197 buf[len] = '\0'; 1198 1199 if (sscanf(buf, "%02x:%02x:%02x:%02x:%02x:%02x", 1200 &addr[0], &addr[1], &addr[2], &addr[3], &addr[4], &addr[5]) 1201 != ETH_ALEN) 1202 return -EINVAL; 1203 for (i = 0; i < ETH_ALEN; i++) 1204 bssid[i] = addr[i]; 1205 1206 ret = ath6kl_wmi_force_roam_cmd(ar->wmi, bssid); 1207 if (ret) 1208 return ret; 1209 1210 return count; 1211 } 1212 1213 static const struct file_operations fops_force_roam = { 1214 .write = ath6kl_force_roam_write, 1215 .open = ath6kl_debugfs_open, 1216 .owner = THIS_MODULE, 1217 .llseek = default_llseek, 1218 }; 1219 1220 static ssize_t ath6kl_roam_mode_write(struct file *file, 1221 const char __user *user_buf, 1222 size_t count, loff_t *ppos) 1223 { 1224 struct ath6kl *ar = file->private_data; 1225 int ret; 1226 char buf[20]; 1227 size_t len; 1228 enum wmi_roam_mode mode; 1229 1230 len = min(count, sizeof(buf) - 1); 1231 if (copy_from_user(buf, user_buf, len)) 1232 return -EFAULT; 1233 buf[len] = '\0'; 1234 if (len > 0 && buf[len - 1] == '\n') 1235 buf[len - 1] = '\0'; 1236 1237 if (strcasecmp(buf, "default") == 0) 1238 mode = WMI_DEFAULT_ROAM_MODE; 1239 else if (strcasecmp(buf, "bssbias") == 0) 1240 mode = WMI_HOST_BIAS_ROAM_MODE; 1241 else if (strcasecmp(buf, "lock") == 0) 1242 mode = WMI_LOCK_BSS_MODE; 1243 else 1244 return -EINVAL; 1245 1246 ret = ath6kl_wmi_set_roam_mode_cmd(ar->wmi, mode); 1247 if (ret) 1248 return ret; 1249 1250 return count; 1251 } 1252 1253 static const struct file_operations fops_roam_mode = { 1254 .write = ath6kl_roam_mode_write, 1255 .open = ath6kl_debugfs_open, 1256 .owner = THIS_MODULE, 1257 .llseek = default_llseek, 1258 }; 1259 1260 void ath6kl_debug_set_keepalive(struct ath6kl *ar, u8 keepalive) 1261 { 1262 ar->debug.keepalive = keepalive; 1263 } 1264 1265 static ssize_t ath6kl_keepalive_read(struct file *file, char __user *user_buf, 1266 size_t count, loff_t *ppos) 1267 { 1268 struct ath6kl *ar = file->private_data; 1269 char buf[16]; 1270 int len; 1271 1272 len = snprintf(buf, sizeof(buf), "%u\n", ar->debug.keepalive); 1273 1274 return simple_read_from_buffer(user_buf, count, ppos, buf, len); 1275 } 1276 1277 static ssize_t ath6kl_keepalive_write(struct file *file, 1278 const char __user *user_buf, 1279 size_t count, loff_t *ppos) 1280 { 1281 struct ath6kl *ar = file->private_data; 1282 int ret; 1283 u8 val; 1284 1285 ret = kstrtou8_from_user(user_buf, count, 0, &val); 1286 if (ret) 1287 return ret; 1288 1289 ret = ath6kl_wmi_set_keepalive_cmd(ar->wmi, 0, val); 1290 if (ret) 1291 return ret; 1292 1293 return count; 1294 } 1295 1296 static const struct file_operations fops_keepalive = { 1297 .open = ath6kl_debugfs_open, 1298 .read = ath6kl_keepalive_read, 1299 .write = ath6kl_keepalive_write, 1300 .owner = THIS_MODULE, 1301 .llseek = default_llseek, 1302 }; 1303 1304 void ath6kl_debug_set_disconnect_timeout(struct ath6kl *ar, u8 timeout) 1305 { 1306 ar->debug.disc_timeout = timeout; 1307 } 1308 1309 static ssize_t ath6kl_disconnect_timeout_read(struct file *file, 1310 char __user *user_buf, 1311 size_t count, loff_t *ppos) 1312 { 1313 struct ath6kl *ar = file->private_data; 1314 char buf[16]; 1315 int len; 1316 1317 len = snprintf(buf, sizeof(buf), "%u\n", ar->debug.disc_timeout); 1318 1319 return simple_read_from_buffer(user_buf, count, ppos, buf, len); 1320 } 1321 1322 static ssize_t ath6kl_disconnect_timeout_write(struct file *file, 1323 const char __user *user_buf, 1324 size_t count, loff_t *ppos) 1325 { 1326 struct ath6kl *ar = file->private_data; 1327 int ret; 1328 u8 val; 1329 1330 ret = kstrtou8_from_user(user_buf, count, 0, &val); 1331 if (ret) 1332 return ret; 1333 1334 ret = ath6kl_wmi_disctimeout_cmd(ar->wmi, 0, val); 1335 if (ret) 1336 return ret; 1337 1338 return count; 1339 } 1340 1341 static const struct file_operations fops_disconnect_timeout = { 1342 .open = ath6kl_debugfs_open, 1343 .read = ath6kl_disconnect_timeout_read, 1344 .write = ath6kl_disconnect_timeout_write, 1345 .owner = THIS_MODULE, 1346 .llseek = default_llseek, 1347 }; 1348 1349 static ssize_t ath6kl_create_qos_write(struct file *file, 1350 const char __user *user_buf, 1351 size_t count, loff_t *ppos) 1352 { 1353 1354 struct ath6kl *ar = file->private_data; 1355 struct ath6kl_vif *vif; 1356 char buf[200]; 1357 ssize_t len; 1358 char *sptr, *token; 1359 struct wmi_create_pstream_cmd pstream; 1360 u32 val32; 1361 u16 val16; 1362 1363 vif = ath6kl_vif_first(ar); 1364 if (!vif) 1365 return -EIO; 1366 1367 len = min(count, sizeof(buf) - 1); 1368 if (copy_from_user(buf, user_buf, len)) 1369 return -EFAULT; 1370 buf[len] = '\0'; 1371 sptr = buf; 1372 1373 token = strsep(&sptr, " "); 1374 if (!token) 1375 return -EINVAL; 1376 if (kstrtou8(token, 0, &pstream.user_pri)) 1377 return -EINVAL; 1378 1379 token = strsep(&sptr, " "); 1380 if (!token) 1381 return -EINVAL; 1382 if (kstrtou8(token, 0, &pstream.traffic_direc)) 1383 return -EINVAL; 1384 1385 token = strsep(&sptr, " "); 1386 if (!token) 1387 return -EINVAL; 1388 if (kstrtou8(token, 0, &pstream.traffic_class)) 1389 return -EINVAL; 1390 1391 token = strsep(&sptr, " "); 1392 if (!token) 1393 return -EINVAL; 1394 if (kstrtou8(token, 0, &pstream.traffic_type)) 1395 return -EINVAL; 1396 1397 token = strsep(&sptr, " "); 1398 if (!token) 1399 return -EINVAL; 1400 if (kstrtou8(token, 0, &pstream.voice_psc_cap)) 1401 return -EINVAL; 1402 1403 token = strsep(&sptr, " "); 1404 if (!token) 1405 return -EINVAL; 1406 if (kstrtou32(token, 0, &val32)) 1407 return -EINVAL; 1408 pstream.min_service_int = cpu_to_le32(val32); 1409 1410 token = strsep(&sptr, " "); 1411 if (!token) 1412 return -EINVAL; 1413 if (kstrtou32(token, 0, &val32)) 1414 return -EINVAL; 1415 pstream.max_service_int = cpu_to_le32(val32); 1416 1417 token = strsep(&sptr, " "); 1418 if (!token) 1419 return -EINVAL; 1420 if (kstrtou32(token, 0, &val32)) 1421 return -EINVAL; 1422 pstream.inactivity_int = cpu_to_le32(val32); 1423 1424 token = strsep(&sptr, " "); 1425 if (!token) 1426 return -EINVAL; 1427 if (kstrtou32(token, 0, &val32)) 1428 return -EINVAL; 1429 pstream.suspension_int = cpu_to_le32(val32); 1430 1431 token = strsep(&sptr, " "); 1432 if (!token) 1433 return -EINVAL; 1434 if (kstrtou32(token, 0, &val32)) 1435 return -EINVAL; 1436 pstream.service_start_time = cpu_to_le32(val32); 1437 1438 token = strsep(&sptr, " "); 1439 if (!token) 1440 return -EINVAL; 1441 if (kstrtou8(token, 0, &pstream.tsid)) 1442 return -EINVAL; 1443 1444 token = strsep(&sptr, " "); 1445 if (!token) 1446 return -EINVAL; 1447 if (kstrtou16(token, 0, &val16)) 1448 return -EINVAL; 1449 pstream.nominal_msdu = cpu_to_le16(val16); 1450 1451 token = strsep(&sptr, " "); 1452 if (!token) 1453 return -EINVAL; 1454 if (kstrtou16(token, 0, &val16)) 1455 return -EINVAL; 1456 pstream.max_msdu = cpu_to_le16(val16); 1457 1458 token = strsep(&sptr, " "); 1459 if (!token) 1460 return -EINVAL; 1461 if (kstrtou32(token, 0, &val32)) 1462 return -EINVAL; 1463 pstream.min_data_rate = cpu_to_le32(val32); 1464 1465 token = strsep(&sptr, " "); 1466 if (!token) 1467 return -EINVAL; 1468 if (kstrtou32(token, 0, &val32)) 1469 return -EINVAL; 1470 pstream.mean_data_rate = cpu_to_le32(val32); 1471 1472 token = strsep(&sptr, " "); 1473 if (!token) 1474 return -EINVAL; 1475 if (kstrtou32(token, 0, &val32)) 1476 return -EINVAL; 1477 pstream.peak_data_rate = cpu_to_le32(val32); 1478 1479 token = strsep(&sptr, " "); 1480 if (!token) 1481 return -EINVAL; 1482 if (kstrtou32(token, 0, &val32)) 1483 return -EINVAL; 1484 pstream.max_burst_size = cpu_to_le32(val32); 1485 1486 token = strsep(&sptr, " "); 1487 if (!token) 1488 return -EINVAL; 1489 if (kstrtou32(token, 0, &val32)) 1490 return -EINVAL; 1491 pstream.delay_bound = cpu_to_le32(val32); 1492 1493 token = strsep(&sptr, " "); 1494 if (!token) 1495 return -EINVAL; 1496 if (kstrtou32(token, 0, &val32)) 1497 return -EINVAL; 1498 pstream.min_phy_rate = cpu_to_le32(val32); 1499 1500 token = strsep(&sptr, " "); 1501 if (!token) 1502 return -EINVAL; 1503 if (kstrtou32(token, 0, &val32)) 1504 return -EINVAL; 1505 pstream.sba = cpu_to_le32(val32); 1506 1507 token = strsep(&sptr, " "); 1508 if (!token) 1509 return -EINVAL; 1510 if (kstrtou32(token, 0, &val32)) 1511 return -EINVAL; 1512 pstream.medium_time = cpu_to_le32(val32); 1513 1514 pstream.nominal_phy = le32_to_cpu(pstream.min_phy_rate) / 1000000; 1515 1516 ath6kl_wmi_create_pstream_cmd(ar->wmi, vif->fw_vif_idx, &pstream); 1517 1518 return count; 1519 } 1520 1521 static const struct file_operations fops_create_qos = { 1522 .write = ath6kl_create_qos_write, 1523 .open = ath6kl_debugfs_open, 1524 .owner = THIS_MODULE, 1525 .llseek = default_llseek, 1526 }; 1527 1528 static ssize_t ath6kl_delete_qos_write(struct file *file, 1529 const char __user *user_buf, 1530 size_t count, loff_t *ppos) 1531 { 1532 1533 struct ath6kl *ar = file->private_data; 1534 struct ath6kl_vif *vif; 1535 char buf[100]; 1536 ssize_t len; 1537 char *sptr, *token; 1538 u8 traffic_class; 1539 u8 tsid; 1540 1541 vif = ath6kl_vif_first(ar); 1542 if (!vif) 1543 return -EIO; 1544 1545 len = min(count, sizeof(buf) - 1); 1546 if (copy_from_user(buf, user_buf, len)) 1547 return -EFAULT; 1548 buf[len] = '\0'; 1549 sptr = buf; 1550 1551 token = strsep(&sptr, " "); 1552 if (!token) 1553 return -EINVAL; 1554 if (kstrtou8(token, 0, &traffic_class)) 1555 return -EINVAL; 1556 1557 token = strsep(&sptr, " "); 1558 if (!token) 1559 return -EINVAL; 1560 if (kstrtou8(token, 0, &tsid)) 1561 return -EINVAL; 1562 1563 ath6kl_wmi_delete_pstream_cmd(ar->wmi, vif->fw_vif_idx, 1564 traffic_class, tsid); 1565 1566 return count; 1567 } 1568 1569 static const struct file_operations fops_delete_qos = { 1570 .write = ath6kl_delete_qos_write, 1571 .open = ath6kl_debugfs_open, 1572 .owner = THIS_MODULE, 1573 .llseek = default_llseek, 1574 }; 1575 1576 static ssize_t ath6kl_bgscan_int_write(struct file *file, 1577 const char __user *user_buf, 1578 size_t count, loff_t *ppos) 1579 { 1580 struct ath6kl *ar = file->private_data; 1581 struct ath6kl_vif *vif; 1582 u16 bgscan_int; 1583 char buf[32]; 1584 ssize_t len; 1585 1586 vif = ath6kl_vif_first(ar); 1587 if (!vif) 1588 return -EIO; 1589 1590 len = min(count, sizeof(buf) - 1); 1591 if (copy_from_user(buf, user_buf, len)) 1592 return -EFAULT; 1593 1594 buf[len] = '\0'; 1595 if (kstrtou16(buf, 0, &bgscan_int)) 1596 return -EINVAL; 1597 1598 if (bgscan_int == 0) 1599 bgscan_int = 0xffff; 1600 1601 vif->bg_scan_period = bgscan_int; 1602 1603 ath6kl_wmi_scanparams_cmd(ar->wmi, 0, 0, 0, bgscan_int, 0, 0, 0, 3, 1604 0, 0, 0); 1605 1606 return count; 1607 } 1608 1609 static const struct file_operations fops_bgscan_int = { 1610 .write = ath6kl_bgscan_int_write, 1611 .open = ath6kl_debugfs_open, 1612 .owner = THIS_MODULE, 1613 .llseek = default_llseek, 1614 }; 1615 1616 static ssize_t ath6kl_listen_int_write(struct file *file, 1617 const char __user *user_buf, 1618 size_t count, loff_t *ppos) 1619 { 1620 struct ath6kl *ar = file->private_data; 1621 struct ath6kl_vif *vif; 1622 u16 listen_interval; 1623 char buf[32]; 1624 ssize_t len; 1625 1626 vif = ath6kl_vif_first(ar); 1627 if (!vif) 1628 return -EIO; 1629 1630 len = min(count, sizeof(buf) - 1); 1631 if (copy_from_user(buf, user_buf, len)) 1632 return -EFAULT; 1633 1634 buf[len] = '\0'; 1635 if (kstrtou16(buf, 0, &listen_interval)) 1636 return -EINVAL; 1637 1638 if ((listen_interval < 15) || (listen_interval > 3000)) 1639 return -EINVAL; 1640 1641 vif->listen_intvl_t = listen_interval; 1642 ath6kl_wmi_listeninterval_cmd(ar->wmi, vif->fw_vif_idx, 1643 vif->listen_intvl_t, 0); 1644 1645 return count; 1646 } 1647 1648 static ssize_t ath6kl_listen_int_read(struct file *file, 1649 char __user *user_buf, 1650 size_t count, loff_t *ppos) 1651 { 1652 struct ath6kl *ar = file->private_data; 1653 struct ath6kl_vif *vif; 1654 char buf[32]; 1655 int len; 1656 1657 vif = ath6kl_vif_first(ar); 1658 if (!vif) 1659 return -EIO; 1660 1661 len = scnprintf(buf, sizeof(buf), "%u\n", vif->listen_intvl_t); 1662 1663 return simple_read_from_buffer(user_buf, count, ppos, buf, len); 1664 } 1665 1666 static const struct file_operations fops_listen_int = { 1667 .read = ath6kl_listen_int_read, 1668 .write = ath6kl_listen_int_write, 1669 .open = ath6kl_debugfs_open, 1670 .owner = THIS_MODULE, 1671 .llseek = default_llseek, 1672 }; 1673 1674 static ssize_t ath6kl_power_params_write(struct file *file, 1675 const char __user *user_buf, 1676 size_t count, loff_t *ppos) 1677 { 1678 struct ath6kl *ar = file->private_data; 1679 u8 buf[100]; 1680 unsigned int len = 0; 1681 char *sptr, *token; 1682 u16 idle_period, ps_poll_num, dtim, 1683 tx_wakeup, num_tx; 1684 1685 len = min(count, sizeof(buf) - 1); 1686 if (copy_from_user(buf, user_buf, len)) 1687 return -EFAULT; 1688 buf[len] = '\0'; 1689 sptr = buf; 1690 1691 token = strsep(&sptr, " "); 1692 if (!token) 1693 return -EINVAL; 1694 if (kstrtou16(token, 0, &idle_period)) 1695 return -EINVAL; 1696 1697 token = strsep(&sptr, " "); 1698 if (!token) 1699 return -EINVAL; 1700 if (kstrtou16(token, 0, &ps_poll_num)) 1701 return -EINVAL; 1702 1703 token = strsep(&sptr, " "); 1704 if (!token) 1705 return -EINVAL; 1706 if (kstrtou16(token, 0, &dtim)) 1707 return -EINVAL; 1708 1709 token = strsep(&sptr, " "); 1710 if (!token) 1711 return -EINVAL; 1712 if (kstrtou16(token, 0, &tx_wakeup)) 1713 return -EINVAL; 1714 1715 token = strsep(&sptr, " "); 1716 if (!token) 1717 return -EINVAL; 1718 if (kstrtou16(token, 0, &num_tx)) 1719 return -EINVAL; 1720 1721 ath6kl_wmi_pmparams_cmd(ar->wmi, 0, idle_period, ps_poll_num, 1722 dtim, tx_wakeup, num_tx, 0); 1723 1724 return count; 1725 } 1726 1727 static const struct file_operations fops_power_params = { 1728 .write = ath6kl_power_params_write, 1729 .open = ath6kl_debugfs_open, 1730 .owner = THIS_MODULE, 1731 .llseek = default_llseek, 1732 }; 1733 1734 void ath6kl_debug_init(struct ath6kl *ar) 1735 { 1736 skb_queue_head_init(&ar->debug.fwlog_queue); 1737 init_completion(&ar->debug.fwlog_completion); 1738 1739 /* 1740 * Actually we are lying here but don't know how to read the mask 1741 * value from the firmware. 1742 */ 1743 ar->debug.fwlog_mask = 0; 1744 } 1745 1746 /* 1747 * Initialisation needs to happen in two stages as fwlog events can come 1748 * before cfg80211 is initialised, and debugfs depends on cfg80211 1749 * initialisation. 1750 */ 1751 int ath6kl_debug_init_fs(struct ath6kl *ar) 1752 { 1753 ar->debugfs_phy = debugfs_create_dir("ath6kl", 1754 ar->wiphy->debugfsdir); 1755 if (!ar->debugfs_phy) 1756 return -ENOMEM; 1757 1758 debugfs_create_file("tgt_stats", S_IRUSR, ar->debugfs_phy, ar, 1759 &fops_tgt_stats); 1760 1761 debugfs_create_file("credit_dist_stats", S_IRUSR, ar->debugfs_phy, ar, 1762 &fops_credit_dist_stats); 1763 1764 debugfs_create_file("endpoint_stats", S_IRUSR | S_IWUSR, 1765 ar->debugfs_phy, ar, &fops_endpoint_stats); 1766 1767 debugfs_create_file("fwlog", S_IRUSR, ar->debugfs_phy, ar, 1768 &fops_fwlog); 1769 1770 debugfs_create_file("fwlog_block", S_IRUSR, ar->debugfs_phy, ar, 1771 &fops_fwlog_block); 1772 1773 debugfs_create_file("fwlog_mask", S_IRUSR | S_IWUSR, ar->debugfs_phy, 1774 ar, &fops_fwlog_mask); 1775 1776 debugfs_create_file("reg_addr", S_IRUSR | S_IWUSR, ar->debugfs_phy, ar, 1777 &fops_diag_reg_read); 1778 1779 debugfs_create_file("reg_dump", S_IRUSR, ar->debugfs_phy, ar, 1780 &fops_reg_dump); 1781 1782 debugfs_create_file("lrssi_roam_threshold", S_IRUSR | S_IWUSR, 1783 ar->debugfs_phy, ar, &fops_lrssi_roam_threshold); 1784 1785 debugfs_create_file("reg_write", S_IRUSR | S_IWUSR, 1786 ar->debugfs_phy, ar, &fops_diag_reg_write); 1787 1788 debugfs_create_file("war_stats", S_IRUSR, ar->debugfs_phy, ar, 1789 &fops_war_stats); 1790 1791 debugfs_create_file("roam_table", S_IRUSR, ar->debugfs_phy, ar, 1792 &fops_roam_table); 1793 1794 debugfs_create_file("force_roam", S_IWUSR, ar->debugfs_phy, ar, 1795 &fops_force_roam); 1796 1797 debugfs_create_file("roam_mode", S_IWUSR, ar->debugfs_phy, ar, 1798 &fops_roam_mode); 1799 1800 debugfs_create_file("keepalive", S_IRUSR | S_IWUSR, ar->debugfs_phy, ar, 1801 &fops_keepalive); 1802 1803 debugfs_create_file("disconnect_timeout", S_IRUSR | S_IWUSR, 1804 ar->debugfs_phy, ar, &fops_disconnect_timeout); 1805 1806 debugfs_create_file("create_qos", S_IWUSR, ar->debugfs_phy, ar, 1807 &fops_create_qos); 1808 1809 debugfs_create_file("delete_qos", S_IWUSR, ar->debugfs_phy, ar, 1810 &fops_delete_qos); 1811 1812 debugfs_create_file("bgscan_interval", S_IWUSR, 1813 ar->debugfs_phy, ar, &fops_bgscan_int); 1814 1815 debugfs_create_file("listen_interval", S_IRUSR | S_IWUSR, 1816 ar->debugfs_phy, ar, &fops_listen_int); 1817 1818 debugfs_create_file("power_params", S_IWUSR, ar->debugfs_phy, ar, 1819 &fops_power_params); 1820 1821 return 0; 1822 } 1823 1824 void ath6kl_debug_cleanup(struct ath6kl *ar) 1825 { 1826 skb_queue_purge(&ar->debug.fwlog_queue); 1827 complete(&ar->debug.fwlog_completion); 1828 kfree(ar->debug.roam_tbl); 1829 } 1830 1831 #endif 1832