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 void ath6kl_debug_war(struct ath6kl *ar, enum ath6kl_war war) 221 { 222 switch (war) { 223 case ATH6KL_WAR_INVALID_RATE: 224 ar->debug.war_stats.invalid_rate++; 225 break; 226 } 227 } 228 229 static ssize_t read_file_war_stats(struct file *file, char __user *user_buf, 230 size_t count, loff_t *ppos) 231 { 232 struct ath6kl *ar = file->private_data; 233 char *buf; 234 unsigned int len = 0, buf_len = 1500; 235 ssize_t ret_cnt; 236 237 buf = kzalloc(buf_len, GFP_KERNEL); 238 if (!buf) 239 return -ENOMEM; 240 241 len += scnprintf(buf + len, buf_len - len, "\n"); 242 len += scnprintf(buf + len, buf_len - len, "%25s\n", 243 "Workaround stats"); 244 len += scnprintf(buf + len, buf_len - len, "%25s\n\n", 245 "================="); 246 len += scnprintf(buf + len, buf_len - len, "%20s %10u\n", 247 "Invalid rates", ar->debug.war_stats.invalid_rate); 248 249 if (WARN_ON(len > buf_len)) 250 len = buf_len; 251 252 ret_cnt = simple_read_from_buffer(user_buf, count, ppos, buf, len); 253 254 kfree(buf); 255 return ret_cnt; 256 } 257 258 static const struct file_operations fops_war_stats = { 259 .read = read_file_war_stats, 260 .open = simple_open, 261 .owner = THIS_MODULE, 262 .llseek = default_llseek, 263 }; 264 265 void ath6kl_debug_fwlog_event(struct ath6kl *ar, const void *buf, size_t len) 266 { 267 struct ath6kl_fwlog_slot *slot; 268 struct sk_buff *skb; 269 size_t slot_len; 270 271 if (WARN_ON(len > ATH6KL_FWLOG_PAYLOAD_SIZE)) 272 return; 273 274 slot_len = sizeof(*slot) + ATH6KL_FWLOG_PAYLOAD_SIZE; 275 276 skb = alloc_skb(slot_len, GFP_KERNEL); 277 if (!skb) 278 return; 279 280 slot = (struct ath6kl_fwlog_slot *) skb_put(skb, slot_len); 281 slot->timestamp = cpu_to_le32(jiffies); 282 slot->length = cpu_to_le32(len); 283 memcpy(slot->payload, buf, len); 284 285 /* Need to pad each record to fixed length ATH6KL_FWLOG_PAYLOAD_SIZE */ 286 memset(slot->payload + len, 0, ATH6KL_FWLOG_PAYLOAD_SIZE - len); 287 288 spin_lock(&ar->debug.fwlog_queue.lock); 289 290 __skb_queue_tail(&ar->debug.fwlog_queue, skb); 291 complete(&ar->debug.fwlog_completion); 292 293 /* drop oldest entries */ 294 while (skb_queue_len(&ar->debug.fwlog_queue) > 295 ATH6KL_FWLOG_MAX_ENTRIES) { 296 skb = __skb_dequeue(&ar->debug.fwlog_queue); 297 kfree_skb(skb); 298 } 299 300 spin_unlock(&ar->debug.fwlog_queue.lock); 301 302 return; 303 } 304 305 static int ath6kl_fwlog_open(struct inode *inode, struct file *file) 306 { 307 struct ath6kl *ar = inode->i_private; 308 309 if (ar->debug.fwlog_open) 310 return -EBUSY; 311 312 ar->debug.fwlog_open = true; 313 314 file->private_data = inode->i_private; 315 return 0; 316 } 317 318 static int ath6kl_fwlog_release(struct inode *inode, struct file *file) 319 { 320 struct ath6kl *ar = inode->i_private; 321 322 ar->debug.fwlog_open = false; 323 324 return 0; 325 } 326 327 static ssize_t ath6kl_fwlog_read(struct file *file, char __user *user_buf, 328 size_t count, loff_t *ppos) 329 { 330 struct ath6kl *ar = file->private_data; 331 struct sk_buff *skb; 332 ssize_t ret_cnt; 333 size_t len = 0; 334 char *buf; 335 336 buf = vmalloc(count); 337 if (!buf) 338 return -ENOMEM; 339 340 /* read undelivered logs from firmware */ 341 ath6kl_read_fwlogs(ar); 342 343 spin_lock(&ar->debug.fwlog_queue.lock); 344 345 while ((skb = __skb_dequeue(&ar->debug.fwlog_queue))) { 346 if (skb->len > count - len) { 347 /* not enough space, put skb back and leave */ 348 __skb_queue_head(&ar->debug.fwlog_queue, skb); 349 break; 350 } 351 352 353 memcpy(buf + len, skb->data, skb->len); 354 len += skb->len; 355 356 kfree_skb(skb); 357 } 358 359 spin_unlock(&ar->debug.fwlog_queue.lock); 360 361 /* FIXME: what to do if len == 0? */ 362 363 ret_cnt = simple_read_from_buffer(user_buf, count, ppos, buf, len); 364 365 vfree(buf); 366 367 return ret_cnt; 368 } 369 370 static const struct file_operations fops_fwlog = { 371 .open = ath6kl_fwlog_open, 372 .release = ath6kl_fwlog_release, 373 .read = ath6kl_fwlog_read, 374 .owner = THIS_MODULE, 375 .llseek = default_llseek, 376 }; 377 378 static ssize_t ath6kl_fwlog_block_read(struct file *file, 379 char __user *user_buf, 380 size_t count, 381 loff_t *ppos) 382 { 383 struct ath6kl *ar = file->private_data; 384 struct sk_buff *skb; 385 ssize_t ret_cnt; 386 size_t len = 0, not_copied; 387 char *buf; 388 int ret; 389 390 buf = vmalloc(count); 391 if (!buf) 392 return -ENOMEM; 393 394 spin_lock(&ar->debug.fwlog_queue.lock); 395 396 if (skb_queue_len(&ar->debug.fwlog_queue) == 0) { 397 /* we must init under queue lock */ 398 init_completion(&ar->debug.fwlog_completion); 399 400 spin_unlock(&ar->debug.fwlog_queue.lock); 401 402 ret = wait_for_completion_interruptible( 403 &ar->debug.fwlog_completion); 404 if (ret == -ERESTARTSYS) { 405 vfree(buf); 406 return ret; 407 } 408 409 spin_lock(&ar->debug.fwlog_queue.lock); 410 } 411 412 while ((skb = __skb_dequeue(&ar->debug.fwlog_queue))) { 413 if (skb->len > count - len) { 414 /* not enough space, put skb back and leave */ 415 __skb_queue_head(&ar->debug.fwlog_queue, skb); 416 break; 417 } 418 419 420 memcpy(buf + len, skb->data, skb->len); 421 len += skb->len; 422 423 kfree_skb(skb); 424 } 425 426 spin_unlock(&ar->debug.fwlog_queue.lock); 427 428 /* FIXME: what to do if len == 0? */ 429 430 not_copied = copy_to_user(user_buf, buf, len); 431 if (not_copied != 0) { 432 ret_cnt = -EFAULT; 433 goto out; 434 } 435 436 *ppos = *ppos + len; 437 438 ret_cnt = len; 439 440 out: 441 vfree(buf); 442 443 return ret_cnt; 444 } 445 446 static const struct file_operations fops_fwlog_block = { 447 .open = ath6kl_fwlog_open, 448 .release = ath6kl_fwlog_release, 449 .read = ath6kl_fwlog_block_read, 450 .owner = THIS_MODULE, 451 .llseek = default_llseek, 452 }; 453 454 static ssize_t ath6kl_fwlog_mask_read(struct file *file, char __user *user_buf, 455 size_t count, loff_t *ppos) 456 { 457 struct ath6kl *ar = file->private_data; 458 char buf[16]; 459 int len; 460 461 len = snprintf(buf, sizeof(buf), "0x%x\n", ar->debug.fwlog_mask); 462 463 return simple_read_from_buffer(user_buf, count, ppos, buf, len); 464 } 465 466 static ssize_t ath6kl_fwlog_mask_write(struct file *file, 467 const char __user *user_buf, 468 size_t count, loff_t *ppos) 469 { 470 struct ath6kl *ar = file->private_data; 471 int ret; 472 473 ret = kstrtou32_from_user(user_buf, count, 0, &ar->debug.fwlog_mask); 474 if (ret) 475 return ret; 476 477 ret = ath6kl_wmi_config_debug_module_cmd(ar->wmi, 478 ATH6KL_FWLOG_VALID_MASK, 479 ar->debug.fwlog_mask); 480 if (ret) 481 return ret; 482 483 return count; 484 } 485 486 static const struct file_operations fops_fwlog_mask = { 487 .open = simple_open, 488 .read = ath6kl_fwlog_mask_read, 489 .write = ath6kl_fwlog_mask_write, 490 .owner = THIS_MODULE, 491 .llseek = default_llseek, 492 }; 493 494 static ssize_t read_file_tgt_stats(struct file *file, char __user *user_buf, 495 size_t count, loff_t *ppos) 496 { 497 struct ath6kl *ar = file->private_data; 498 struct ath6kl_vif *vif; 499 struct target_stats *tgt_stats; 500 char *buf; 501 unsigned int len = 0, buf_len = 1500; 502 int i; 503 long left; 504 ssize_t ret_cnt; 505 506 vif = ath6kl_vif_first(ar); 507 if (!vif) 508 return -EIO; 509 510 tgt_stats = &vif->target_stats; 511 512 buf = kzalloc(buf_len, GFP_KERNEL); 513 if (!buf) 514 return -ENOMEM; 515 516 if (down_interruptible(&ar->sem)) { 517 kfree(buf); 518 return -EBUSY; 519 } 520 521 set_bit(STATS_UPDATE_PEND, &vif->flags); 522 523 if (ath6kl_wmi_get_stats_cmd(ar->wmi, 0)) { 524 up(&ar->sem); 525 kfree(buf); 526 return -EIO; 527 } 528 529 left = wait_event_interruptible_timeout(ar->event_wq, 530 !test_bit(STATS_UPDATE_PEND, 531 &vif->flags), WMI_TIMEOUT); 532 533 up(&ar->sem); 534 535 if (left <= 0) { 536 kfree(buf); 537 return -ETIMEDOUT; 538 } 539 540 len += scnprintf(buf + len, buf_len - len, "\n"); 541 len += scnprintf(buf + len, buf_len - len, "%25s\n", 542 "Target Tx stats"); 543 len += scnprintf(buf + len, buf_len - len, "%25s\n\n", 544 "================="); 545 len += scnprintf(buf + len, buf_len - len, "%20s %10llu\n", 546 "Ucast packets", tgt_stats->tx_ucast_pkt); 547 len += scnprintf(buf + len, buf_len - len, "%20s %10llu\n", 548 "Bcast packets", tgt_stats->tx_bcast_pkt); 549 len += scnprintf(buf + len, buf_len - len, "%20s %10llu\n", 550 "Ucast byte", tgt_stats->tx_ucast_byte); 551 len += scnprintf(buf + len, buf_len - len, "%20s %10llu\n", 552 "Bcast byte", tgt_stats->tx_bcast_byte); 553 len += scnprintf(buf + len, buf_len - len, "%20s %10llu\n", 554 "Rts success cnt", tgt_stats->tx_rts_success_cnt); 555 for (i = 0; i < 4; i++) 556 len += scnprintf(buf + len, buf_len - len, 557 "%18s %d %10llu\n", "PER on ac", 558 i, tgt_stats->tx_pkt_per_ac[i]); 559 len += scnprintf(buf + len, buf_len - len, "%20s %10llu\n", 560 "Error", tgt_stats->tx_err); 561 len += scnprintf(buf + len, buf_len - len, "%20s %10llu\n", 562 "Fail count", tgt_stats->tx_fail_cnt); 563 len += scnprintf(buf + len, buf_len - len, "%20s %10llu\n", 564 "Retry count", tgt_stats->tx_retry_cnt); 565 len += scnprintf(buf + len, buf_len - len, "%20s %10llu\n", 566 "Multi retry cnt", tgt_stats->tx_mult_retry_cnt); 567 len += scnprintf(buf + len, buf_len - len, "%20s %10llu\n", 568 "Rts fail cnt", tgt_stats->tx_rts_fail_cnt); 569 len += scnprintf(buf + len, buf_len - len, "%25s %10llu\n\n", 570 "TKIP counter measure used", 571 tgt_stats->tkip_cnter_measures_invoked); 572 573 len += scnprintf(buf + len, buf_len - len, "%25s\n", 574 "Target Rx stats"); 575 len += scnprintf(buf + len, buf_len - len, "%25s\n", 576 "================="); 577 578 len += scnprintf(buf + len, buf_len - len, "%20s %10llu\n", 579 "Ucast packets", tgt_stats->rx_ucast_pkt); 580 len += scnprintf(buf + len, buf_len - len, "%20s %10d\n", 581 "Ucast Rate", tgt_stats->rx_ucast_rate); 582 len += scnprintf(buf + len, buf_len - len, "%20s %10llu\n", 583 "Bcast packets", tgt_stats->rx_bcast_pkt); 584 len += scnprintf(buf + len, buf_len - len, "%20s %10llu\n", 585 "Ucast byte", tgt_stats->rx_ucast_byte); 586 len += scnprintf(buf + len, buf_len - len, "%20s %10llu\n", 587 "Bcast byte", tgt_stats->rx_bcast_byte); 588 len += scnprintf(buf + len, buf_len - len, "%20s %10llu\n", 589 "Fragmented pkt", tgt_stats->rx_frgment_pkt); 590 len += scnprintf(buf + len, buf_len - len, "%20s %10llu\n", 591 "Error", tgt_stats->rx_err); 592 len += scnprintf(buf + len, buf_len - len, "%20s %10llu\n", 593 "CRC Err", tgt_stats->rx_crc_err); 594 len += scnprintf(buf + len, buf_len - len, "%20s %10llu\n", 595 "Key chache miss", tgt_stats->rx_key_cache_miss); 596 len += scnprintf(buf + len, buf_len - len, "%20s %10llu\n", 597 "Decrypt Err", tgt_stats->rx_decrypt_err); 598 len += scnprintf(buf + len, buf_len - len, "%20s %10llu\n", 599 "Duplicate frame", tgt_stats->rx_dupl_frame); 600 len += scnprintf(buf + len, buf_len - len, "%20s %10llu\n", 601 "Tkip Mic failure", tgt_stats->tkip_local_mic_fail); 602 len += scnprintf(buf + len, buf_len - len, "%20s %10llu\n", 603 "TKIP format err", tgt_stats->tkip_fmt_err); 604 len += scnprintf(buf + len, buf_len - len, "%20s %10llu\n", 605 "CCMP format Err", tgt_stats->ccmp_fmt_err); 606 len += scnprintf(buf + len, buf_len - len, "%20s %10llu\n\n", 607 "CCMP Replay Err", tgt_stats->ccmp_replays); 608 609 len += scnprintf(buf + len, buf_len - len, "%25s\n", 610 "Misc Target stats"); 611 len += scnprintf(buf + len, buf_len - len, "%25s\n", 612 "================="); 613 len += scnprintf(buf + len, buf_len - len, "%20s %10llu\n", 614 "Beacon Miss count", tgt_stats->cs_bmiss_cnt); 615 len += scnprintf(buf + len, buf_len - len, "%20s %10llu\n", 616 "Num Connects", tgt_stats->cs_connect_cnt); 617 len += scnprintf(buf + len, buf_len - len, "%20s %10llu\n", 618 "Num disconnects", tgt_stats->cs_discon_cnt); 619 len += scnprintf(buf + len, buf_len - len, "%20s %10d\n", 620 "Beacon avg rssi", tgt_stats->cs_ave_beacon_rssi); 621 len += scnprintf(buf + len, buf_len - len, "%20s %10d\n", 622 "ARP pkt received", tgt_stats->arp_received); 623 len += scnprintf(buf + len, buf_len - len, "%20s %10d\n", 624 "ARP pkt matched", tgt_stats->arp_matched); 625 len += scnprintf(buf + len, buf_len - len, "%20s %10d\n", 626 "ARP pkt replied", tgt_stats->arp_replied); 627 628 if (len > buf_len) 629 len = buf_len; 630 631 ret_cnt = simple_read_from_buffer(user_buf, count, ppos, buf, len); 632 633 kfree(buf); 634 return ret_cnt; 635 } 636 637 static const struct file_operations fops_tgt_stats = { 638 .read = read_file_tgt_stats, 639 .open = simple_open, 640 .owner = THIS_MODULE, 641 .llseek = default_llseek, 642 }; 643 644 #define print_credit_info(fmt_str, ep_list_field) \ 645 (len += scnprintf(buf + len, buf_len - len, fmt_str, \ 646 ep_list->ep_list_field)) 647 #define CREDIT_INFO_DISPLAY_STRING_LEN 200 648 #define CREDIT_INFO_LEN 128 649 650 static ssize_t read_file_credit_dist_stats(struct file *file, 651 char __user *user_buf, 652 size_t count, loff_t *ppos) 653 { 654 struct ath6kl *ar = file->private_data; 655 struct htc_target *target = ar->htc_target; 656 struct htc_endpoint_credit_dist *ep_list; 657 char *buf; 658 unsigned int buf_len, len = 0; 659 ssize_t ret_cnt; 660 661 buf_len = CREDIT_INFO_DISPLAY_STRING_LEN + 662 get_queue_depth(&target->cred_dist_list) * CREDIT_INFO_LEN; 663 buf = kzalloc(buf_len, GFP_KERNEL); 664 if (!buf) 665 return -ENOMEM; 666 667 len += scnprintf(buf + len, buf_len - len, "%25s%5d\n", 668 "Total Avail Credits: ", 669 target->credit_info->total_avail_credits); 670 len += scnprintf(buf + len, buf_len - len, "%25s%5d\n", 671 "Free credits :", 672 target->credit_info->cur_free_credits); 673 674 len += scnprintf(buf + len, buf_len - len, 675 " Epid Flags Cred_norm Cred_min Credits Cred_assngd" 676 " Seek_cred Cred_sz Cred_per_msg Cred_to_dist" 677 " qdepth\n"); 678 679 list_for_each_entry(ep_list, &target->cred_dist_list, list) { 680 print_credit_info(" %2d", endpoint); 681 print_credit_info("%10x", dist_flags); 682 print_credit_info("%8d", cred_norm); 683 print_credit_info("%9d", cred_min); 684 print_credit_info("%9d", credits); 685 print_credit_info("%10d", cred_assngd); 686 print_credit_info("%13d", seek_cred); 687 print_credit_info("%12d", cred_sz); 688 print_credit_info("%9d", cred_per_msg); 689 print_credit_info("%14d", cred_to_dist); 690 len += scnprintf(buf + len, buf_len - len, "%12d\n", 691 get_queue_depth(&ep_list->htc_ep->txq)); 692 } 693 694 if (len > buf_len) 695 len = buf_len; 696 697 ret_cnt = simple_read_from_buffer(user_buf, count, ppos, buf, len); 698 kfree(buf); 699 return ret_cnt; 700 } 701 702 static const struct file_operations fops_credit_dist_stats = { 703 .read = read_file_credit_dist_stats, 704 .open = simple_open, 705 .owner = THIS_MODULE, 706 .llseek = default_llseek, 707 }; 708 709 static unsigned int print_endpoint_stat(struct htc_target *target, char *buf, 710 unsigned int buf_len, unsigned int len, 711 int offset, const char *name) 712 { 713 int i; 714 struct htc_endpoint_stats *ep_st; 715 u32 *counter; 716 717 len += scnprintf(buf + len, buf_len - len, "%s:", name); 718 for (i = 0; i < ENDPOINT_MAX; i++) { 719 ep_st = &target->endpoint[i].ep_st; 720 counter = ((u32 *) ep_st) + (offset / 4); 721 len += scnprintf(buf + len, buf_len - len, " %u", *counter); 722 } 723 len += scnprintf(buf + len, buf_len - len, "\n"); 724 725 return len; 726 } 727 728 static ssize_t ath6kl_endpoint_stats_read(struct file *file, 729 char __user *user_buf, 730 size_t count, loff_t *ppos) 731 { 732 struct ath6kl *ar = file->private_data; 733 struct htc_target *target = ar->htc_target; 734 char *buf; 735 unsigned int buf_len, len = 0; 736 ssize_t ret_cnt; 737 738 buf_len = sizeof(struct htc_endpoint_stats) / sizeof(u32) * 739 (25 + ENDPOINT_MAX * 11); 740 buf = kmalloc(buf_len, GFP_KERNEL); 741 if (!buf) 742 return -ENOMEM; 743 744 #define EPSTAT(name) \ 745 do { \ 746 len = print_endpoint_stat(target, buf, buf_len, len, \ 747 offsetof(struct htc_endpoint_stats, \ 748 name), \ 749 #name); \ 750 } while (0) 751 752 EPSTAT(cred_low_indicate); 753 EPSTAT(tx_issued); 754 EPSTAT(tx_pkt_bundled); 755 EPSTAT(tx_bundles); 756 EPSTAT(tx_dropped); 757 EPSTAT(tx_cred_rpt); 758 EPSTAT(cred_rpt_from_rx); 759 EPSTAT(cred_rpt_from_other); 760 EPSTAT(cred_rpt_ep0); 761 EPSTAT(cred_from_rx); 762 EPSTAT(cred_from_other); 763 EPSTAT(cred_from_ep0); 764 EPSTAT(cred_cosumd); 765 EPSTAT(cred_retnd); 766 EPSTAT(rx_pkts); 767 EPSTAT(rx_lkahds); 768 EPSTAT(rx_bundl); 769 EPSTAT(rx_bundle_lkahd); 770 EPSTAT(rx_bundle_from_hdr); 771 EPSTAT(rx_alloc_thresh_hit); 772 EPSTAT(rxalloc_thresh_byte); 773 #undef EPSTAT 774 775 if (len > buf_len) 776 len = buf_len; 777 778 ret_cnt = simple_read_from_buffer(user_buf, count, ppos, buf, len); 779 kfree(buf); 780 return ret_cnt; 781 } 782 783 static ssize_t ath6kl_endpoint_stats_write(struct file *file, 784 const char __user *user_buf, 785 size_t count, loff_t *ppos) 786 { 787 struct ath6kl *ar = file->private_data; 788 struct htc_target *target = ar->htc_target; 789 int ret, i; 790 u32 val; 791 struct htc_endpoint_stats *ep_st; 792 793 ret = kstrtou32_from_user(user_buf, count, 0, &val); 794 if (ret) 795 return ret; 796 if (val == 0) { 797 for (i = 0; i < ENDPOINT_MAX; i++) { 798 ep_st = &target->endpoint[i].ep_st; 799 memset(ep_st, 0, sizeof(*ep_st)); 800 } 801 } 802 803 return count; 804 } 805 806 static const struct file_operations fops_endpoint_stats = { 807 .open = simple_open, 808 .read = ath6kl_endpoint_stats_read, 809 .write = ath6kl_endpoint_stats_write, 810 .owner = THIS_MODULE, 811 .llseek = default_llseek, 812 }; 813 814 static unsigned long ath6kl_get_num_reg(void) 815 { 816 int i; 817 unsigned long n_reg = 0; 818 819 for (i = 0; i < ARRAY_SIZE(diag_reg); i++) 820 n_reg = n_reg + 821 (diag_reg[i].reg_end - diag_reg[i].reg_start) / 4 + 1; 822 823 return n_reg; 824 } 825 826 static bool ath6kl_dbg_is_diag_reg_valid(u32 reg_addr) 827 { 828 int i; 829 830 for (i = 0; i < ARRAY_SIZE(diag_reg); i++) { 831 if (reg_addr >= diag_reg[i].reg_start && 832 reg_addr <= diag_reg[i].reg_end) 833 return true; 834 } 835 836 return false; 837 } 838 839 static ssize_t ath6kl_regread_read(struct file *file, char __user *user_buf, 840 size_t count, loff_t *ppos) 841 { 842 struct ath6kl *ar = file->private_data; 843 u8 buf[50]; 844 unsigned int len = 0; 845 846 if (ar->debug.dbgfs_diag_reg) 847 len += scnprintf(buf + len, sizeof(buf) - len, "0x%x\n", 848 ar->debug.dbgfs_diag_reg); 849 else 850 len += scnprintf(buf + len, sizeof(buf) - len, 851 "All diag registers\n"); 852 853 return simple_read_from_buffer(user_buf, count, ppos, buf, len); 854 } 855 856 static ssize_t ath6kl_regread_write(struct file *file, 857 const char __user *user_buf, 858 size_t count, loff_t *ppos) 859 { 860 struct ath6kl *ar = file->private_data; 861 unsigned long reg_addr; 862 863 if (kstrtoul_from_user(user_buf, count, 0, ®_addr)) 864 return -EINVAL; 865 866 if ((reg_addr % 4) != 0) 867 return -EINVAL; 868 869 if (reg_addr && !ath6kl_dbg_is_diag_reg_valid(reg_addr)) 870 return -EINVAL; 871 872 ar->debug.dbgfs_diag_reg = reg_addr; 873 874 return count; 875 } 876 877 static const struct file_operations fops_diag_reg_read = { 878 .read = ath6kl_regread_read, 879 .write = ath6kl_regread_write, 880 .open = simple_open, 881 .owner = THIS_MODULE, 882 .llseek = default_llseek, 883 }; 884 885 static int ath6kl_regdump_open(struct inode *inode, struct file *file) 886 { 887 struct ath6kl *ar = inode->i_private; 888 u8 *buf; 889 unsigned long int reg_len; 890 unsigned int len = 0, n_reg; 891 u32 addr; 892 __le32 reg_val; 893 int i, status; 894 895 /* Dump all the registers if no register is specified */ 896 if (!ar->debug.dbgfs_diag_reg) 897 n_reg = ath6kl_get_num_reg(); 898 else 899 n_reg = 1; 900 901 reg_len = n_reg * REG_OUTPUT_LEN_PER_LINE; 902 if (n_reg > 1) 903 reg_len += REGTYPE_STR_LEN; 904 905 buf = vmalloc(reg_len); 906 if (!buf) 907 return -ENOMEM; 908 909 if (n_reg == 1) { 910 addr = ar->debug.dbgfs_diag_reg; 911 912 status = ath6kl_diag_read32(ar, 913 TARG_VTOP(ar->target_type, addr), 914 (u32 *)®_val); 915 if (status) 916 goto fail_reg_read; 917 918 len += scnprintf(buf + len, reg_len - len, 919 "0x%06x 0x%08x\n", addr, le32_to_cpu(reg_val)); 920 goto done; 921 } 922 923 for (i = 0; i < ARRAY_SIZE(diag_reg); i++) { 924 len += scnprintf(buf + len, reg_len - len, 925 "%s\n", diag_reg[i].reg_info); 926 for (addr = diag_reg[i].reg_start; 927 addr <= diag_reg[i].reg_end; addr += 4) { 928 status = ath6kl_diag_read32(ar, 929 TARG_VTOP(ar->target_type, addr), 930 (u32 *)®_val); 931 if (status) 932 goto fail_reg_read; 933 934 len += scnprintf(buf + len, reg_len - len, 935 "0x%06x 0x%08x\n", 936 addr, le32_to_cpu(reg_val)); 937 } 938 } 939 940 done: 941 file->private_data = buf; 942 return 0; 943 944 fail_reg_read: 945 ath6kl_warn("Unable to read memory:%u\n", addr); 946 vfree(buf); 947 return -EIO; 948 } 949 950 static ssize_t ath6kl_regdump_read(struct file *file, char __user *user_buf, 951 size_t count, loff_t *ppos) 952 { 953 u8 *buf = file->private_data; 954 return simple_read_from_buffer(user_buf, count, ppos, buf, strlen(buf)); 955 } 956 957 static int ath6kl_regdump_release(struct inode *inode, struct file *file) 958 { 959 vfree(file->private_data); 960 return 0; 961 } 962 963 static const struct file_operations fops_reg_dump = { 964 .open = ath6kl_regdump_open, 965 .read = ath6kl_regdump_read, 966 .release = ath6kl_regdump_release, 967 .owner = THIS_MODULE, 968 .llseek = default_llseek, 969 }; 970 971 static ssize_t ath6kl_lrssi_roam_write(struct file *file, 972 const char __user *user_buf, 973 size_t count, loff_t *ppos) 974 { 975 struct ath6kl *ar = file->private_data; 976 unsigned long lrssi_roam_threshold; 977 978 if (kstrtoul_from_user(user_buf, count, 0, &lrssi_roam_threshold)) 979 return -EINVAL; 980 981 ar->lrssi_roam_threshold = lrssi_roam_threshold; 982 983 ath6kl_wmi_set_roam_lrssi_cmd(ar->wmi, ar->lrssi_roam_threshold); 984 985 return count; 986 } 987 988 static ssize_t ath6kl_lrssi_roam_read(struct file *file, 989 char __user *user_buf, 990 size_t count, loff_t *ppos) 991 { 992 struct ath6kl *ar = file->private_data; 993 char buf[32]; 994 unsigned int len; 995 996 len = snprintf(buf, sizeof(buf), "%u\n", ar->lrssi_roam_threshold); 997 998 return simple_read_from_buffer(user_buf, count, ppos, buf, len); 999 } 1000 1001 static const struct file_operations fops_lrssi_roam_threshold = { 1002 .read = ath6kl_lrssi_roam_read, 1003 .write = ath6kl_lrssi_roam_write, 1004 .open = simple_open, 1005 .owner = THIS_MODULE, 1006 .llseek = default_llseek, 1007 }; 1008 1009 static ssize_t ath6kl_regwrite_read(struct file *file, 1010 char __user *user_buf, 1011 size_t count, loff_t *ppos) 1012 { 1013 struct ath6kl *ar = file->private_data; 1014 u8 buf[32]; 1015 unsigned int len = 0; 1016 1017 len = scnprintf(buf, sizeof(buf), "Addr: 0x%x Val: 0x%x\n", 1018 ar->debug.diag_reg_addr_wr, ar->debug.diag_reg_val_wr); 1019 1020 return simple_read_from_buffer(user_buf, count, ppos, buf, len); 1021 } 1022 1023 static ssize_t ath6kl_regwrite_write(struct file *file, 1024 const char __user *user_buf, 1025 size_t count, loff_t *ppos) 1026 { 1027 struct ath6kl *ar = file->private_data; 1028 char buf[32]; 1029 char *sptr, *token; 1030 unsigned int len = 0; 1031 u32 reg_addr, reg_val; 1032 1033 len = min(count, sizeof(buf) - 1); 1034 if (copy_from_user(buf, user_buf, len)) 1035 return -EFAULT; 1036 1037 buf[len] = '\0'; 1038 sptr = buf; 1039 1040 token = strsep(&sptr, "="); 1041 if (!token) 1042 return -EINVAL; 1043 1044 if (kstrtou32(token, 0, ®_addr)) 1045 return -EINVAL; 1046 1047 if (!ath6kl_dbg_is_diag_reg_valid(reg_addr)) 1048 return -EINVAL; 1049 1050 if (kstrtou32(sptr, 0, ®_val)) 1051 return -EINVAL; 1052 1053 ar->debug.diag_reg_addr_wr = reg_addr; 1054 ar->debug.diag_reg_val_wr = reg_val; 1055 1056 if (ath6kl_diag_write32(ar, ar->debug.diag_reg_addr_wr, 1057 cpu_to_le32(ar->debug.diag_reg_val_wr))) 1058 return -EIO; 1059 1060 return count; 1061 } 1062 1063 static const struct file_operations fops_diag_reg_write = { 1064 .read = ath6kl_regwrite_read, 1065 .write = ath6kl_regwrite_write, 1066 .open = simple_open, 1067 .owner = THIS_MODULE, 1068 .llseek = default_llseek, 1069 }; 1070 1071 int ath6kl_debug_roam_tbl_event(struct ath6kl *ar, const void *buf, 1072 size_t len) 1073 { 1074 const struct wmi_target_roam_tbl *tbl; 1075 u16 num_entries; 1076 1077 if (len < sizeof(*tbl)) 1078 return -EINVAL; 1079 1080 tbl = (const struct wmi_target_roam_tbl *) buf; 1081 num_entries = le16_to_cpu(tbl->num_entries); 1082 if (sizeof(*tbl) + num_entries * sizeof(struct wmi_bss_roam_info) > 1083 len) 1084 return -EINVAL; 1085 1086 if (ar->debug.roam_tbl == NULL || 1087 ar->debug.roam_tbl_len < (unsigned int) len) { 1088 kfree(ar->debug.roam_tbl); 1089 ar->debug.roam_tbl = kmalloc(len, GFP_ATOMIC); 1090 if (ar->debug.roam_tbl == NULL) 1091 return -ENOMEM; 1092 } 1093 1094 memcpy(ar->debug.roam_tbl, buf, len); 1095 ar->debug.roam_tbl_len = len; 1096 1097 if (test_bit(ROAM_TBL_PEND, &ar->flag)) { 1098 clear_bit(ROAM_TBL_PEND, &ar->flag); 1099 wake_up(&ar->event_wq); 1100 } 1101 1102 return 0; 1103 } 1104 1105 static ssize_t ath6kl_roam_table_read(struct file *file, char __user *user_buf, 1106 size_t count, loff_t *ppos) 1107 { 1108 struct ath6kl *ar = file->private_data; 1109 int ret; 1110 long left; 1111 struct wmi_target_roam_tbl *tbl; 1112 u16 num_entries, i; 1113 char *buf; 1114 unsigned int len, buf_len; 1115 ssize_t ret_cnt; 1116 1117 if (down_interruptible(&ar->sem)) 1118 return -EBUSY; 1119 1120 set_bit(ROAM_TBL_PEND, &ar->flag); 1121 1122 ret = ath6kl_wmi_get_roam_tbl_cmd(ar->wmi); 1123 if (ret) { 1124 up(&ar->sem); 1125 return ret; 1126 } 1127 1128 left = wait_event_interruptible_timeout( 1129 ar->event_wq, !test_bit(ROAM_TBL_PEND, &ar->flag), WMI_TIMEOUT); 1130 up(&ar->sem); 1131 1132 if (left <= 0) 1133 return -ETIMEDOUT; 1134 1135 if (ar->debug.roam_tbl == NULL) 1136 return -ENOMEM; 1137 1138 tbl = (struct wmi_target_roam_tbl *) ar->debug.roam_tbl; 1139 num_entries = le16_to_cpu(tbl->num_entries); 1140 1141 buf_len = 100 + num_entries * 100; 1142 buf = kzalloc(buf_len, GFP_KERNEL); 1143 if (buf == NULL) 1144 return -ENOMEM; 1145 len = 0; 1146 len += scnprintf(buf + len, buf_len - len, 1147 "roam_mode=%u\n\n" 1148 "# roam_util bssid rssi rssidt last_rssi util bias\n", 1149 le16_to_cpu(tbl->roam_mode)); 1150 1151 for (i = 0; i < num_entries; i++) { 1152 struct wmi_bss_roam_info *info = &tbl->info[i]; 1153 len += scnprintf(buf + len, buf_len - len, 1154 "%d %pM %d %d %d %d %d\n", 1155 a_sle32_to_cpu(info->roam_util), info->bssid, 1156 info->rssi, info->rssidt, info->last_rssi, 1157 info->util, info->bias); 1158 } 1159 1160 if (len > buf_len) 1161 len = buf_len; 1162 1163 ret_cnt = simple_read_from_buffer(user_buf, count, ppos, buf, len); 1164 1165 kfree(buf); 1166 return ret_cnt; 1167 } 1168 1169 static const struct file_operations fops_roam_table = { 1170 .read = ath6kl_roam_table_read, 1171 .open = simple_open, 1172 .owner = THIS_MODULE, 1173 .llseek = default_llseek, 1174 }; 1175 1176 static ssize_t ath6kl_force_roam_write(struct file *file, 1177 const char __user *user_buf, 1178 size_t count, loff_t *ppos) 1179 { 1180 struct ath6kl *ar = file->private_data; 1181 int ret; 1182 char buf[20]; 1183 size_t len; 1184 u8 bssid[ETH_ALEN]; 1185 int i; 1186 int addr[ETH_ALEN]; 1187 1188 len = min(count, sizeof(buf) - 1); 1189 if (copy_from_user(buf, user_buf, len)) 1190 return -EFAULT; 1191 buf[len] = '\0'; 1192 1193 if (sscanf(buf, "%02x:%02x:%02x:%02x:%02x:%02x", 1194 &addr[0], &addr[1], &addr[2], &addr[3], &addr[4], &addr[5]) 1195 != ETH_ALEN) 1196 return -EINVAL; 1197 for (i = 0; i < ETH_ALEN; i++) 1198 bssid[i] = addr[i]; 1199 1200 ret = ath6kl_wmi_force_roam_cmd(ar->wmi, bssid); 1201 if (ret) 1202 return ret; 1203 1204 return count; 1205 } 1206 1207 static const struct file_operations fops_force_roam = { 1208 .write = ath6kl_force_roam_write, 1209 .open = simple_open, 1210 .owner = THIS_MODULE, 1211 .llseek = default_llseek, 1212 }; 1213 1214 static ssize_t ath6kl_roam_mode_write(struct file *file, 1215 const char __user *user_buf, 1216 size_t count, loff_t *ppos) 1217 { 1218 struct ath6kl *ar = file->private_data; 1219 int ret; 1220 char buf[20]; 1221 size_t len; 1222 enum wmi_roam_mode mode; 1223 1224 len = min(count, sizeof(buf) - 1); 1225 if (copy_from_user(buf, user_buf, len)) 1226 return -EFAULT; 1227 buf[len] = '\0'; 1228 if (len > 0 && buf[len - 1] == '\n') 1229 buf[len - 1] = '\0'; 1230 1231 if (strcasecmp(buf, "default") == 0) 1232 mode = WMI_DEFAULT_ROAM_MODE; 1233 else if (strcasecmp(buf, "bssbias") == 0) 1234 mode = WMI_HOST_BIAS_ROAM_MODE; 1235 else if (strcasecmp(buf, "lock") == 0) 1236 mode = WMI_LOCK_BSS_MODE; 1237 else 1238 return -EINVAL; 1239 1240 ret = ath6kl_wmi_set_roam_mode_cmd(ar->wmi, mode); 1241 if (ret) 1242 return ret; 1243 1244 return count; 1245 } 1246 1247 static const struct file_operations fops_roam_mode = { 1248 .write = ath6kl_roam_mode_write, 1249 .open = simple_open, 1250 .owner = THIS_MODULE, 1251 .llseek = default_llseek, 1252 }; 1253 1254 void ath6kl_debug_set_keepalive(struct ath6kl *ar, u8 keepalive) 1255 { 1256 ar->debug.keepalive = keepalive; 1257 } 1258 1259 static ssize_t ath6kl_keepalive_read(struct file *file, char __user *user_buf, 1260 size_t count, loff_t *ppos) 1261 { 1262 struct ath6kl *ar = file->private_data; 1263 char buf[16]; 1264 int len; 1265 1266 len = snprintf(buf, sizeof(buf), "%u\n", ar->debug.keepalive); 1267 1268 return simple_read_from_buffer(user_buf, count, ppos, buf, len); 1269 } 1270 1271 static ssize_t ath6kl_keepalive_write(struct file *file, 1272 const char __user *user_buf, 1273 size_t count, loff_t *ppos) 1274 { 1275 struct ath6kl *ar = file->private_data; 1276 int ret; 1277 u8 val; 1278 1279 ret = kstrtou8_from_user(user_buf, count, 0, &val); 1280 if (ret) 1281 return ret; 1282 1283 ret = ath6kl_wmi_set_keepalive_cmd(ar->wmi, 0, val); 1284 if (ret) 1285 return ret; 1286 1287 return count; 1288 } 1289 1290 static const struct file_operations fops_keepalive = { 1291 .open = simple_open, 1292 .read = ath6kl_keepalive_read, 1293 .write = ath6kl_keepalive_write, 1294 .owner = THIS_MODULE, 1295 .llseek = default_llseek, 1296 }; 1297 1298 void ath6kl_debug_set_disconnect_timeout(struct ath6kl *ar, u8 timeout) 1299 { 1300 ar->debug.disc_timeout = timeout; 1301 } 1302 1303 static ssize_t ath6kl_disconnect_timeout_read(struct file *file, 1304 char __user *user_buf, 1305 size_t count, loff_t *ppos) 1306 { 1307 struct ath6kl *ar = file->private_data; 1308 char buf[16]; 1309 int len; 1310 1311 len = snprintf(buf, sizeof(buf), "%u\n", ar->debug.disc_timeout); 1312 1313 return simple_read_from_buffer(user_buf, count, ppos, buf, len); 1314 } 1315 1316 static ssize_t ath6kl_disconnect_timeout_write(struct file *file, 1317 const char __user *user_buf, 1318 size_t count, loff_t *ppos) 1319 { 1320 struct ath6kl *ar = file->private_data; 1321 int ret; 1322 u8 val; 1323 1324 ret = kstrtou8_from_user(user_buf, count, 0, &val); 1325 if (ret) 1326 return ret; 1327 1328 ret = ath6kl_wmi_disctimeout_cmd(ar->wmi, 0, val); 1329 if (ret) 1330 return ret; 1331 1332 return count; 1333 } 1334 1335 static const struct file_operations fops_disconnect_timeout = { 1336 .open = simple_open, 1337 .read = ath6kl_disconnect_timeout_read, 1338 .write = ath6kl_disconnect_timeout_write, 1339 .owner = THIS_MODULE, 1340 .llseek = default_llseek, 1341 }; 1342 1343 static ssize_t ath6kl_create_qos_write(struct file *file, 1344 const char __user *user_buf, 1345 size_t count, loff_t *ppos) 1346 { 1347 1348 struct ath6kl *ar = file->private_data; 1349 struct ath6kl_vif *vif; 1350 char buf[200]; 1351 ssize_t len; 1352 char *sptr, *token; 1353 struct wmi_create_pstream_cmd pstream; 1354 u32 val32; 1355 u16 val16; 1356 1357 vif = ath6kl_vif_first(ar); 1358 if (!vif) 1359 return -EIO; 1360 1361 len = min(count, sizeof(buf) - 1); 1362 if (copy_from_user(buf, user_buf, len)) 1363 return -EFAULT; 1364 buf[len] = '\0'; 1365 sptr = buf; 1366 1367 token = strsep(&sptr, " "); 1368 if (!token) 1369 return -EINVAL; 1370 if (kstrtou8(token, 0, &pstream.user_pri)) 1371 return -EINVAL; 1372 1373 token = strsep(&sptr, " "); 1374 if (!token) 1375 return -EINVAL; 1376 if (kstrtou8(token, 0, &pstream.traffic_direc)) 1377 return -EINVAL; 1378 1379 token = strsep(&sptr, " "); 1380 if (!token) 1381 return -EINVAL; 1382 if (kstrtou8(token, 0, &pstream.traffic_class)) 1383 return -EINVAL; 1384 1385 token = strsep(&sptr, " "); 1386 if (!token) 1387 return -EINVAL; 1388 if (kstrtou8(token, 0, &pstream.traffic_type)) 1389 return -EINVAL; 1390 1391 token = strsep(&sptr, " "); 1392 if (!token) 1393 return -EINVAL; 1394 if (kstrtou8(token, 0, &pstream.voice_psc_cap)) 1395 return -EINVAL; 1396 1397 token = strsep(&sptr, " "); 1398 if (!token) 1399 return -EINVAL; 1400 if (kstrtou32(token, 0, &val32)) 1401 return -EINVAL; 1402 pstream.min_service_int = cpu_to_le32(val32); 1403 1404 token = strsep(&sptr, " "); 1405 if (!token) 1406 return -EINVAL; 1407 if (kstrtou32(token, 0, &val32)) 1408 return -EINVAL; 1409 pstream.max_service_int = cpu_to_le32(val32); 1410 1411 token = strsep(&sptr, " "); 1412 if (!token) 1413 return -EINVAL; 1414 if (kstrtou32(token, 0, &val32)) 1415 return -EINVAL; 1416 pstream.inactivity_int = cpu_to_le32(val32); 1417 1418 token = strsep(&sptr, " "); 1419 if (!token) 1420 return -EINVAL; 1421 if (kstrtou32(token, 0, &val32)) 1422 return -EINVAL; 1423 pstream.suspension_int = cpu_to_le32(val32); 1424 1425 token = strsep(&sptr, " "); 1426 if (!token) 1427 return -EINVAL; 1428 if (kstrtou32(token, 0, &val32)) 1429 return -EINVAL; 1430 pstream.service_start_time = cpu_to_le32(val32); 1431 1432 token = strsep(&sptr, " "); 1433 if (!token) 1434 return -EINVAL; 1435 if (kstrtou8(token, 0, &pstream.tsid)) 1436 return -EINVAL; 1437 1438 token = strsep(&sptr, " "); 1439 if (!token) 1440 return -EINVAL; 1441 if (kstrtou16(token, 0, &val16)) 1442 return -EINVAL; 1443 pstream.nominal_msdu = cpu_to_le16(val16); 1444 1445 token = strsep(&sptr, " "); 1446 if (!token) 1447 return -EINVAL; 1448 if (kstrtou16(token, 0, &val16)) 1449 return -EINVAL; 1450 pstream.max_msdu = cpu_to_le16(val16); 1451 1452 token = strsep(&sptr, " "); 1453 if (!token) 1454 return -EINVAL; 1455 if (kstrtou32(token, 0, &val32)) 1456 return -EINVAL; 1457 pstream.min_data_rate = cpu_to_le32(val32); 1458 1459 token = strsep(&sptr, " "); 1460 if (!token) 1461 return -EINVAL; 1462 if (kstrtou32(token, 0, &val32)) 1463 return -EINVAL; 1464 pstream.mean_data_rate = cpu_to_le32(val32); 1465 1466 token = strsep(&sptr, " "); 1467 if (!token) 1468 return -EINVAL; 1469 if (kstrtou32(token, 0, &val32)) 1470 return -EINVAL; 1471 pstream.peak_data_rate = cpu_to_le32(val32); 1472 1473 token = strsep(&sptr, " "); 1474 if (!token) 1475 return -EINVAL; 1476 if (kstrtou32(token, 0, &val32)) 1477 return -EINVAL; 1478 pstream.max_burst_size = cpu_to_le32(val32); 1479 1480 token = strsep(&sptr, " "); 1481 if (!token) 1482 return -EINVAL; 1483 if (kstrtou32(token, 0, &val32)) 1484 return -EINVAL; 1485 pstream.delay_bound = cpu_to_le32(val32); 1486 1487 token = strsep(&sptr, " "); 1488 if (!token) 1489 return -EINVAL; 1490 if (kstrtou32(token, 0, &val32)) 1491 return -EINVAL; 1492 pstream.min_phy_rate = cpu_to_le32(val32); 1493 1494 token = strsep(&sptr, " "); 1495 if (!token) 1496 return -EINVAL; 1497 if (kstrtou32(token, 0, &val32)) 1498 return -EINVAL; 1499 pstream.sba = cpu_to_le32(val32); 1500 1501 token = strsep(&sptr, " "); 1502 if (!token) 1503 return -EINVAL; 1504 if (kstrtou32(token, 0, &val32)) 1505 return -EINVAL; 1506 pstream.medium_time = cpu_to_le32(val32); 1507 1508 pstream.nominal_phy = le32_to_cpu(pstream.min_phy_rate) / 1000000; 1509 1510 ath6kl_wmi_create_pstream_cmd(ar->wmi, vif->fw_vif_idx, &pstream); 1511 1512 return count; 1513 } 1514 1515 static const struct file_operations fops_create_qos = { 1516 .write = ath6kl_create_qos_write, 1517 .open = simple_open, 1518 .owner = THIS_MODULE, 1519 .llseek = default_llseek, 1520 }; 1521 1522 static ssize_t ath6kl_delete_qos_write(struct file *file, 1523 const char __user *user_buf, 1524 size_t count, loff_t *ppos) 1525 { 1526 1527 struct ath6kl *ar = file->private_data; 1528 struct ath6kl_vif *vif; 1529 char buf[100]; 1530 ssize_t len; 1531 char *sptr, *token; 1532 u8 traffic_class; 1533 u8 tsid; 1534 1535 vif = ath6kl_vif_first(ar); 1536 if (!vif) 1537 return -EIO; 1538 1539 len = min(count, sizeof(buf) - 1); 1540 if (copy_from_user(buf, user_buf, len)) 1541 return -EFAULT; 1542 buf[len] = '\0'; 1543 sptr = buf; 1544 1545 token = strsep(&sptr, " "); 1546 if (!token) 1547 return -EINVAL; 1548 if (kstrtou8(token, 0, &traffic_class)) 1549 return -EINVAL; 1550 1551 token = strsep(&sptr, " "); 1552 if (!token) 1553 return -EINVAL; 1554 if (kstrtou8(token, 0, &tsid)) 1555 return -EINVAL; 1556 1557 ath6kl_wmi_delete_pstream_cmd(ar->wmi, vif->fw_vif_idx, 1558 traffic_class, tsid); 1559 1560 return count; 1561 } 1562 1563 static const struct file_operations fops_delete_qos = { 1564 .write = ath6kl_delete_qos_write, 1565 .open = simple_open, 1566 .owner = THIS_MODULE, 1567 .llseek = default_llseek, 1568 }; 1569 1570 static ssize_t ath6kl_bgscan_int_write(struct file *file, 1571 const char __user *user_buf, 1572 size_t count, loff_t *ppos) 1573 { 1574 struct ath6kl *ar = file->private_data; 1575 struct ath6kl_vif *vif; 1576 u16 bgscan_int; 1577 char buf[32]; 1578 ssize_t len; 1579 1580 vif = ath6kl_vif_first(ar); 1581 if (!vif) 1582 return -EIO; 1583 1584 len = min(count, sizeof(buf) - 1); 1585 if (copy_from_user(buf, user_buf, len)) 1586 return -EFAULT; 1587 1588 buf[len] = '\0'; 1589 if (kstrtou16(buf, 0, &bgscan_int)) 1590 return -EINVAL; 1591 1592 if (bgscan_int == 0) 1593 bgscan_int = 0xffff; 1594 1595 vif->bg_scan_period = bgscan_int; 1596 1597 ath6kl_wmi_scanparams_cmd(ar->wmi, 0, 0, 0, bgscan_int, 0, 0, 0, 3, 1598 0, 0, 0); 1599 1600 return count; 1601 } 1602 1603 static const struct file_operations fops_bgscan_int = { 1604 .write = ath6kl_bgscan_int_write, 1605 .open = simple_open, 1606 .owner = THIS_MODULE, 1607 .llseek = default_llseek, 1608 }; 1609 1610 static ssize_t ath6kl_listen_int_write(struct file *file, 1611 const char __user *user_buf, 1612 size_t count, loff_t *ppos) 1613 { 1614 struct ath6kl *ar = file->private_data; 1615 struct ath6kl_vif *vif; 1616 u16 listen_interval; 1617 char buf[32]; 1618 ssize_t len; 1619 1620 vif = ath6kl_vif_first(ar); 1621 if (!vif) 1622 return -EIO; 1623 1624 len = min(count, sizeof(buf) - 1); 1625 if (copy_from_user(buf, user_buf, len)) 1626 return -EFAULT; 1627 1628 buf[len] = '\0'; 1629 if (kstrtou16(buf, 0, &listen_interval)) 1630 return -EINVAL; 1631 1632 if ((listen_interval < 15) || (listen_interval > 3000)) 1633 return -EINVAL; 1634 1635 vif->listen_intvl_t = listen_interval; 1636 ath6kl_wmi_listeninterval_cmd(ar->wmi, vif->fw_vif_idx, 1637 vif->listen_intvl_t, 0); 1638 1639 return count; 1640 } 1641 1642 static ssize_t ath6kl_listen_int_read(struct file *file, 1643 char __user *user_buf, 1644 size_t count, loff_t *ppos) 1645 { 1646 struct ath6kl *ar = file->private_data; 1647 struct ath6kl_vif *vif; 1648 char buf[32]; 1649 int len; 1650 1651 vif = ath6kl_vif_first(ar); 1652 if (!vif) 1653 return -EIO; 1654 1655 len = scnprintf(buf, sizeof(buf), "%u\n", vif->listen_intvl_t); 1656 1657 return simple_read_from_buffer(user_buf, count, ppos, buf, len); 1658 } 1659 1660 static const struct file_operations fops_listen_int = { 1661 .read = ath6kl_listen_int_read, 1662 .write = ath6kl_listen_int_write, 1663 .open = simple_open, 1664 .owner = THIS_MODULE, 1665 .llseek = default_llseek, 1666 }; 1667 1668 static ssize_t ath6kl_power_params_write(struct file *file, 1669 const char __user *user_buf, 1670 size_t count, loff_t *ppos) 1671 { 1672 struct ath6kl *ar = file->private_data; 1673 u8 buf[100]; 1674 unsigned int len = 0; 1675 char *sptr, *token; 1676 u16 idle_period, ps_poll_num, dtim, 1677 tx_wakeup, num_tx; 1678 1679 len = min(count, sizeof(buf) - 1); 1680 if (copy_from_user(buf, user_buf, len)) 1681 return -EFAULT; 1682 buf[len] = '\0'; 1683 sptr = buf; 1684 1685 token = strsep(&sptr, " "); 1686 if (!token) 1687 return -EINVAL; 1688 if (kstrtou16(token, 0, &idle_period)) 1689 return -EINVAL; 1690 1691 token = strsep(&sptr, " "); 1692 if (!token) 1693 return -EINVAL; 1694 if (kstrtou16(token, 0, &ps_poll_num)) 1695 return -EINVAL; 1696 1697 token = strsep(&sptr, " "); 1698 if (!token) 1699 return -EINVAL; 1700 if (kstrtou16(token, 0, &dtim)) 1701 return -EINVAL; 1702 1703 token = strsep(&sptr, " "); 1704 if (!token) 1705 return -EINVAL; 1706 if (kstrtou16(token, 0, &tx_wakeup)) 1707 return -EINVAL; 1708 1709 token = strsep(&sptr, " "); 1710 if (!token) 1711 return -EINVAL; 1712 if (kstrtou16(token, 0, &num_tx)) 1713 return -EINVAL; 1714 1715 ath6kl_wmi_pmparams_cmd(ar->wmi, 0, idle_period, ps_poll_num, 1716 dtim, tx_wakeup, num_tx, 0); 1717 1718 return count; 1719 } 1720 1721 static const struct file_operations fops_power_params = { 1722 .write = ath6kl_power_params_write, 1723 .open = simple_open, 1724 .owner = THIS_MODULE, 1725 .llseek = default_llseek, 1726 }; 1727 1728 void ath6kl_debug_init(struct ath6kl *ar) 1729 { 1730 skb_queue_head_init(&ar->debug.fwlog_queue); 1731 init_completion(&ar->debug.fwlog_completion); 1732 1733 /* 1734 * Actually we are lying here but don't know how to read the mask 1735 * value from the firmware. 1736 */ 1737 ar->debug.fwlog_mask = 0; 1738 } 1739 1740 /* 1741 * Initialisation needs to happen in two stages as fwlog events can come 1742 * before cfg80211 is initialised, and debugfs depends on cfg80211 1743 * initialisation. 1744 */ 1745 int ath6kl_debug_init_fs(struct ath6kl *ar) 1746 { 1747 ar->debugfs_phy = debugfs_create_dir("ath6kl", 1748 ar->wiphy->debugfsdir); 1749 if (!ar->debugfs_phy) 1750 return -ENOMEM; 1751 1752 debugfs_create_file("tgt_stats", S_IRUSR, ar->debugfs_phy, ar, 1753 &fops_tgt_stats); 1754 1755 debugfs_create_file("credit_dist_stats", S_IRUSR, ar->debugfs_phy, ar, 1756 &fops_credit_dist_stats); 1757 1758 debugfs_create_file("endpoint_stats", S_IRUSR | S_IWUSR, 1759 ar->debugfs_phy, ar, &fops_endpoint_stats); 1760 1761 debugfs_create_file("fwlog", S_IRUSR, ar->debugfs_phy, ar, 1762 &fops_fwlog); 1763 1764 debugfs_create_file("fwlog_block", S_IRUSR, ar->debugfs_phy, ar, 1765 &fops_fwlog_block); 1766 1767 debugfs_create_file("fwlog_mask", S_IRUSR | S_IWUSR, ar->debugfs_phy, 1768 ar, &fops_fwlog_mask); 1769 1770 debugfs_create_file("reg_addr", S_IRUSR | S_IWUSR, ar->debugfs_phy, ar, 1771 &fops_diag_reg_read); 1772 1773 debugfs_create_file("reg_dump", S_IRUSR, ar->debugfs_phy, ar, 1774 &fops_reg_dump); 1775 1776 debugfs_create_file("lrssi_roam_threshold", S_IRUSR | S_IWUSR, 1777 ar->debugfs_phy, ar, &fops_lrssi_roam_threshold); 1778 1779 debugfs_create_file("reg_write", S_IRUSR | S_IWUSR, 1780 ar->debugfs_phy, ar, &fops_diag_reg_write); 1781 1782 debugfs_create_file("war_stats", S_IRUSR, ar->debugfs_phy, ar, 1783 &fops_war_stats); 1784 1785 debugfs_create_file("roam_table", S_IRUSR, ar->debugfs_phy, ar, 1786 &fops_roam_table); 1787 1788 debugfs_create_file("force_roam", S_IWUSR, ar->debugfs_phy, ar, 1789 &fops_force_roam); 1790 1791 debugfs_create_file("roam_mode", S_IWUSR, ar->debugfs_phy, ar, 1792 &fops_roam_mode); 1793 1794 debugfs_create_file("keepalive", S_IRUSR | S_IWUSR, ar->debugfs_phy, ar, 1795 &fops_keepalive); 1796 1797 debugfs_create_file("disconnect_timeout", S_IRUSR | S_IWUSR, 1798 ar->debugfs_phy, ar, &fops_disconnect_timeout); 1799 1800 debugfs_create_file("create_qos", S_IWUSR, ar->debugfs_phy, ar, 1801 &fops_create_qos); 1802 1803 debugfs_create_file("delete_qos", S_IWUSR, ar->debugfs_phy, ar, 1804 &fops_delete_qos); 1805 1806 debugfs_create_file("bgscan_interval", S_IWUSR, 1807 ar->debugfs_phy, ar, &fops_bgscan_int); 1808 1809 debugfs_create_file("listen_interval", S_IRUSR | S_IWUSR, 1810 ar->debugfs_phy, ar, &fops_listen_int); 1811 1812 debugfs_create_file("power_params", S_IWUSR, ar->debugfs_phy, ar, 1813 &fops_power_params); 1814 1815 return 0; 1816 } 1817 1818 void ath6kl_debug_cleanup(struct ath6kl *ar) 1819 { 1820 skb_queue_purge(&ar->debug.fwlog_queue); 1821 complete(&ar->debug.fwlog_completion); 1822 kfree(ar->debug.roam_tbl); 1823 } 1824 1825 #endif 1826