1 /* 2 * Copyright (c) 2004-2011 Atheros Communications Inc. 3 * 4 * Permission to use, copy, modify, and/or distribute this software for any 5 * purpose with or without fee is hereby granted, provided that the above 6 * copyright notice and this permission notice appear in all copies. 7 * 8 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES 9 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF 10 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR 11 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES 12 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN 13 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF 14 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. 15 */ 16 17 #include "core.h" 18 19 #include <linux/circ_buf.h> 20 #include <linux/fs.h> 21 #include <linux/vmalloc.h> 22 #include <linux/export.h> 23 24 #include "debug.h" 25 #include "target.h" 26 27 struct ath6kl_fwlog_slot { 28 __le32 timestamp; 29 __le32 length; 30 31 /* max ATH6KL_FWLOG_PAYLOAD_SIZE bytes */ 32 u8 payload[0]; 33 }; 34 35 #define ATH6KL_FWLOG_SIZE 32768 36 #define ATH6KL_FWLOG_SLOT_SIZE (sizeof(struct ath6kl_fwlog_slot) + \ 37 ATH6KL_FWLOG_PAYLOAD_SIZE) 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 58 #ifdef CONFIG_ATH6KL_DEBUG 59 60 #define REG_OUTPUT_LEN_PER_LINE 25 61 #define REGTYPE_STR_LEN 100 62 63 struct ath6kl_diag_reg_info { 64 u32 reg_start; 65 u32 reg_end; 66 const char *reg_info; 67 }; 68 69 static const struct ath6kl_diag_reg_info diag_reg[] = { 70 { 0x20000, 0x200fc, "General DMA and Rx registers" }, 71 { 0x28000, 0x28900, "MAC PCU register & keycache" }, 72 { 0x20800, 0x20a40, "QCU" }, 73 { 0x21000, 0x212f0, "DCU" }, 74 { 0x4000, 0x42e4, "RTC" }, 75 { 0x540000, 0x540000 + (256 * 1024), "RAM" }, 76 { 0x29800, 0x2B210, "Base Band" }, 77 { 0x1C000, 0x1C748, "Analog" }, 78 }; 79 80 void ath6kl_dump_registers(struct ath6kl_device *dev, 81 struct ath6kl_irq_proc_registers *irq_proc_reg, 82 struct ath6kl_irq_enable_reg *irq_enable_reg) 83 { 84 85 ath6kl_dbg(ATH6KL_DBG_ANY, ("<------- Register Table -------->\n")); 86 87 if (irq_proc_reg != NULL) { 88 ath6kl_dbg(ATH6KL_DBG_ANY, 89 "Host Int status: 0x%x\n", 90 irq_proc_reg->host_int_status); 91 ath6kl_dbg(ATH6KL_DBG_ANY, 92 "CPU Int status: 0x%x\n", 93 irq_proc_reg->cpu_int_status); 94 ath6kl_dbg(ATH6KL_DBG_ANY, 95 "Error Int status: 0x%x\n", 96 irq_proc_reg->error_int_status); 97 ath6kl_dbg(ATH6KL_DBG_ANY, 98 "Counter Int status: 0x%x\n", 99 irq_proc_reg->counter_int_status); 100 ath6kl_dbg(ATH6KL_DBG_ANY, 101 "Mbox Frame: 0x%x\n", 102 irq_proc_reg->mbox_frame); 103 ath6kl_dbg(ATH6KL_DBG_ANY, 104 "Rx Lookahead Valid: 0x%x\n", 105 irq_proc_reg->rx_lkahd_valid); 106 ath6kl_dbg(ATH6KL_DBG_ANY, 107 "Rx Lookahead 0: 0x%x\n", 108 irq_proc_reg->rx_lkahd[0]); 109 ath6kl_dbg(ATH6KL_DBG_ANY, 110 "Rx Lookahead 1: 0x%x\n", 111 irq_proc_reg->rx_lkahd[1]); 112 113 if (dev->ar->mbox_info.gmbox_addr != 0) { 114 /* 115 * If the target supports GMBOX hardware, dump some 116 * additional state. 117 */ 118 ath6kl_dbg(ATH6KL_DBG_ANY, 119 "GMBOX Host Int status 2: 0x%x\n", 120 irq_proc_reg->host_int_status2); 121 ath6kl_dbg(ATH6KL_DBG_ANY, 122 "GMBOX RX Avail: 0x%x\n", 123 irq_proc_reg->gmbox_rx_avail); 124 ath6kl_dbg(ATH6KL_DBG_ANY, 125 "GMBOX lookahead alias 0: 0x%x\n", 126 irq_proc_reg->rx_gmbox_lkahd_alias[0]); 127 ath6kl_dbg(ATH6KL_DBG_ANY, 128 "GMBOX lookahead alias 1: 0x%x\n", 129 irq_proc_reg->rx_gmbox_lkahd_alias[1]); 130 } 131 132 } 133 134 if (irq_enable_reg != NULL) { 135 ath6kl_dbg(ATH6KL_DBG_ANY, 136 "Int status Enable: 0x%x\n", 137 irq_enable_reg->int_status_en); 138 ath6kl_dbg(ATH6KL_DBG_ANY, "Counter Int status Enable: 0x%x\n", 139 irq_enable_reg->cntr_int_status_en); 140 } 141 ath6kl_dbg(ATH6KL_DBG_ANY, "<------------------------------->\n"); 142 } 143 144 static void dump_cred_dist(struct htc_endpoint_credit_dist *ep_dist) 145 { 146 ath6kl_dbg(ATH6KL_DBG_CREDIT, 147 "--- endpoint: %d svc_id: 0x%X ---\n", 148 ep_dist->endpoint, ep_dist->svc_id); 149 ath6kl_dbg(ATH6KL_DBG_CREDIT, " dist_flags : 0x%X\n", 150 ep_dist->dist_flags); 151 ath6kl_dbg(ATH6KL_DBG_CREDIT, " cred_norm : %d\n", 152 ep_dist->cred_norm); 153 ath6kl_dbg(ATH6KL_DBG_CREDIT, " cred_min : %d\n", 154 ep_dist->cred_min); 155 ath6kl_dbg(ATH6KL_DBG_CREDIT, " credits : %d\n", 156 ep_dist->credits); 157 ath6kl_dbg(ATH6KL_DBG_CREDIT, " cred_assngd : %d\n", 158 ep_dist->cred_assngd); 159 ath6kl_dbg(ATH6KL_DBG_CREDIT, " seek_cred : %d\n", 160 ep_dist->seek_cred); 161 ath6kl_dbg(ATH6KL_DBG_CREDIT, " cred_sz : %d\n", 162 ep_dist->cred_sz); 163 ath6kl_dbg(ATH6KL_DBG_CREDIT, " cred_per_msg : %d\n", 164 ep_dist->cred_per_msg); 165 ath6kl_dbg(ATH6KL_DBG_CREDIT, " cred_to_dist : %d\n", 166 ep_dist->cred_to_dist); 167 ath6kl_dbg(ATH6KL_DBG_CREDIT, " txq_depth : %d\n", 168 get_queue_depth(&ep_dist->htc_ep->txq)); 169 ath6kl_dbg(ATH6KL_DBG_CREDIT, 170 "----------------------------------\n"); 171 } 172 173 /* FIXME: move to htc.c */ 174 void dump_cred_dist_stats(struct htc_target *target) 175 { 176 struct htc_endpoint_credit_dist *ep_list; 177 178 if (!AR_DBG_LVL_CHECK(ATH6KL_DBG_CREDIT)) 179 return; 180 181 list_for_each_entry(ep_list, &target->cred_dist_list, list) 182 dump_cred_dist(ep_list); 183 184 ath6kl_dbg(ATH6KL_DBG_CREDIT, 185 "credit distribution total %d free %d\n", 186 target->credit_info->total_avail_credits, 187 target->credit_info->cur_free_credits); 188 } 189 190 static int ath6kl_debugfs_open(struct inode *inode, struct file *file) 191 { 192 file->private_data = inode->i_private; 193 return 0; 194 } 195 196 void ath6kl_debug_war(struct ath6kl *ar, enum ath6kl_war war) 197 { 198 switch (war) { 199 case ATH6KL_WAR_INVALID_RATE: 200 ar->debug.war_stats.invalid_rate++; 201 break; 202 } 203 } 204 205 static ssize_t read_file_war_stats(struct file *file, char __user *user_buf, 206 size_t count, loff_t *ppos) 207 { 208 struct ath6kl *ar = file->private_data; 209 char *buf; 210 unsigned int len = 0, buf_len = 1500; 211 ssize_t ret_cnt; 212 213 buf = kzalloc(buf_len, GFP_KERNEL); 214 if (!buf) 215 return -ENOMEM; 216 217 len += scnprintf(buf + len, buf_len - len, "\n"); 218 len += scnprintf(buf + len, buf_len - len, "%25s\n", 219 "Workaround stats"); 220 len += scnprintf(buf + len, buf_len - len, "%25s\n\n", 221 "================="); 222 len += scnprintf(buf + len, buf_len - len, "%20s %10u\n", 223 "Invalid rates", ar->debug.war_stats.invalid_rate); 224 225 if (WARN_ON(len > buf_len)) 226 len = buf_len; 227 228 ret_cnt = simple_read_from_buffer(user_buf, count, ppos, buf, len); 229 230 kfree(buf); 231 return ret_cnt; 232 } 233 234 static const struct file_operations fops_war_stats = { 235 .read = read_file_war_stats, 236 .open = ath6kl_debugfs_open, 237 .owner = THIS_MODULE, 238 .llseek = default_llseek, 239 }; 240 241 static void ath6kl_debug_fwlog_add(struct ath6kl *ar, const void *buf, 242 size_t buf_len) 243 { 244 struct circ_buf *fwlog = &ar->debug.fwlog_buf; 245 size_t space; 246 int i; 247 248 /* entries must all be equal size */ 249 if (WARN_ON(buf_len != ATH6KL_FWLOG_SLOT_SIZE)) 250 return; 251 252 space = CIRC_SPACE(fwlog->head, fwlog->tail, ATH6KL_FWLOG_SIZE); 253 if (space < buf_len) 254 /* discard oldest slot */ 255 fwlog->tail = (fwlog->tail + ATH6KL_FWLOG_SLOT_SIZE) & 256 (ATH6KL_FWLOG_SIZE - 1); 257 258 for (i = 0; i < buf_len; i += space) { 259 space = CIRC_SPACE_TO_END(fwlog->head, fwlog->tail, 260 ATH6KL_FWLOG_SIZE); 261 262 if ((size_t) space > buf_len - i) 263 space = buf_len - i; 264 265 memcpy(&fwlog->buf[fwlog->head], buf, space); 266 fwlog->head = (fwlog->head + space) & (ATH6KL_FWLOG_SIZE - 1); 267 } 268 269 } 270 271 void ath6kl_debug_fwlog_event(struct ath6kl *ar, const void *buf, size_t len) 272 { 273 struct ath6kl_fwlog_slot *slot = ar->debug.fwlog_tmp; 274 size_t slot_len; 275 276 if (WARN_ON(len > ATH6KL_FWLOG_PAYLOAD_SIZE)) 277 return; 278 279 spin_lock_bh(&ar->debug.fwlog_lock); 280 281 slot->timestamp = cpu_to_le32(jiffies); 282 slot->length = cpu_to_le32(len); 283 memcpy(slot->payload, buf, len); 284 285 slot_len = sizeof(*slot) + len; 286 287 if (slot_len < ATH6KL_FWLOG_SLOT_SIZE) 288 memset(slot->payload + len, 0, 289 ATH6KL_FWLOG_SLOT_SIZE - slot_len); 290 291 ath6kl_debug_fwlog_add(ar, slot, ATH6KL_FWLOG_SLOT_SIZE); 292 293 spin_unlock_bh(&ar->debug.fwlog_lock); 294 } 295 296 static bool ath6kl_debug_fwlog_empty(struct ath6kl *ar) 297 { 298 return CIRC_CNT(ar->debug.fwlog_buf.head, 299 ar->debug.fwlog_buf.tail, 300 ATH6KL_FWLOG_SLOT_SIZE) == 0; 301 } 302 303 static ssize_t ath6kl_fwlog_read(struct file *file, char __user *user_buf, 304 size_t count, loff_t *ppos) 305 { 306 struct ath6kl *ar = file->private_data; 307 struct circ_buf *fwlog = &ar->debug.fwlog_buf; 308 size_t len = 0, buf_len = count; 309 ssize_t ret_cnt; 310 char *buf; 311 int ccnt; 312 313 buf = vmalloc(buf_len); 314 if (!buf) 315 return -ENOMEM; 316 317 /* read undelivered logs from firmware */ 318 ath6kl_read_fwlogs(ar); 319 320 spin_lock_bh(&ar->debug.fwlog_lock); 321 322 while (len < buf_len && !ath6kl_debug_fwlog_empty(ar)) { 323 ccnt = CIRC_CNT_TO_END(fwlog->head, fwlog->tail, 324 ATH6KL_FWLOG_SIZE); 325 326 if ((size_t) ccnt > buf_len - len) 327 ccnt = buf_len - len; 328 329 memcpy(buf + len, &fwlog->buf[fwlog->tail], ccnt); 330 len += ccnt; 331 332 fwlog->tail = (fwlog->tail + ccnt) & 333 (ATH6KL_FWLOG_SIZE - 1); 334 } 335 336 spin_unlock_bh(&ar->debug.fwlog_lock); 337 338 if (WARN_ON(len > buf_len)) 339 len = buf_len; 340 341 ret_cnt = simple_read_from_buffer(user_buf, count, ppos, buf, len); 342 343 vfree(buf); 344 345 return ret_cnt; 346 } 347 348 static const struct file_operations fops_fwlog = { 349 .open = ath6kl_debugfs_open, 350 .read = ath6kl_fwlog_read, 351 .owner = THIS_MODULE, 352 .llseek = default_llseek, 353 }; 354 355 static ssize_t ath6kl_fwlog_mask_read(struct file *file, char __user *user_buf, 356 size_t count, loff_t *ppos) 357 { 358 struct ath6kl *ar = file->private_data; 359 char buf[16]; 360 int len; 361 362 len = snprintf(buf, sizeof(buf), "0x%x\n", ar->debug.fwlog_mask); 363 364 return simple_read_from_buffer(user_buf, count, ppos, buf, len); 365 } 366 367 static ssize_t ath6kl_fwlog_mask_write(struct file *file, 368 const char __user *user_buf, 369 size_t count, loff_t *ppos) 370 { 371 struct ath6kl *ar = file->private_data; 372 int ret; 373 374 ret = kstrtou32_from_user(user_buf, count, 0, &ar->debug.fwlog_mask); 375 if (ret) 376 return ret; 377 378 ret = ath6kl_wmi_config_debug_module_cmd(ar->wmi, 379 ATH6KL_FWLOG_VALID_MASK, 380 ar->debug.fwlog_mask); 381 if (ret) 382 return ret; 383 384 return count; 385 } 386 387 static const struct file_operations fops_fwlog_mask = { 388 .open = ath6kl_debugfs_open, 389 .read = ath6kl_fwlog_mask_read, 390 .write = ath6kl_fwlog_mask_write, 391 .owner = THIS_MODULE, 392 .llseek = default_llseek, 393 }; 394 395 static ssize_t read_file_tgt_stats(struct file *file, char __user *user_buf, 396 size_t count, loff_t *ppos) 397 { 398 struct ath6kl *ar = file->private_data; 399 struct ath6kl_vif *vif; 400 struct target_stats *tgt_stats; 401 char *buf; 402 unsigned int len = 0, buf_len = 1500; 403 int i; 404 long left; 405 ssize_t ret_cnt; 406 407 vif = ath6kl_vif_first(ar); 408 if (!vif) 409 return -EIO; 410 411 tgt_stats = &vif->target_stats; 412 413 buf = kzalloc(buf_len, GFP_KERNEL); 414 if (!buf) 415 return -ENOMEM; 416 417 if (down_interruptible(&ar->sem)) { 418 kfree(buf); 419 return -EBUSY; 420 } 421 422 set_bit(STATS_UPDATE_PEND, &vif->flags); 423 424 if (ath6kl_wmi_get_stats_cmd(ar->wmi, 0)) { 425 up(&ar->sem); 426 kfree(buf); 427 return -EIO; 428 } 429 430 left = wait_event_interruptible_timeout(ar->event_wq, 431 !test_bit(STATS_UPDATE_PEND, 432 &vif->flags), WMI_TIMEOUT); 433 434 up(&ar->sem); 435 436 if (left <= 0) { 437 kfree(buf); 438 return -ETIMEDOUT; 439 } 440 441 len += scnprintf(buf + len, buf_len - len, "\n"); 442 len += scnprintf(buf + len, buf_len - len, "%25s\n", 443 "Target Tx stats"); 444 len += scnprintf(buf + len, buf_len - len, "%25s\n\n", 445 "================="); 446 len += scnprintf(buf + len, buf_len - len, "%20s %10llu\n", 447 "Ucast packets", tgt_stats->tx_ucast_pkt); 448 len += scnprintf(buf + len, buf_len - len, "%20s %10llu\n", 449 "Bcast packets", tgt_stats->tx_bcast_pkt); 450 len += scnprintf(buf + len, buf_len - len, "%20s %10llu\n", 451 "Ucast byte", tgt_stats->tx_ucast_byte); 452 len += scnprintf(buf + len, buf_len - len, "%20s %10llu\n", 453 "Bcast byte", tgt_stats->tx_bcast_byte); 454 len += scnprintf(buf + len, buf_len - len, "%20s %10llu\n", 455 "Rts success cnt", tgt_stats->tx_rts_success_cnt); 456 for (i = 0; i < 4; i++) 457 len += scnprintf(buf + len, buf_len - len, 458 "%18s %d %10llu\n", "PER on ac", 459 i, tgt_stats->tx_pkt_per_ac[i]); 460 len += scnprintf(buf + len, buf_len - len, "%20s %10llu\n", 461 "Error", tgt_stats->tx_err); 462 len += scnprintf(buf + len, buf_len - len, "%20s %10llu\n", 463 "Fail count", tgt_stats->tx_fail_cnt); 464 len += scnprintf(buf + len, buf_len - len, "%20s %10llu\n", 465 "Retry count", tgt_stats->tx_retry_cnt); 466 len += scnprintf(buf + len, buf_len - len, "%20s %10llu\n", 467 "Multi retry cnt", tgt_stats->tx_mult_retry_cnt); 468 len += scnprintf(buf + len, buf_len - len, "%20s %10llu\n", 469 "Rts fail cnt", tgt_stats->tx_rts_fail_cnt); 470 len += scnprintf(buf + len, buf_len - len, "%25s %10llu\n\n", 471 "TKIP counter measure used", 472 tgt_stats->tkip_cnter_measures_invoked); 473 474 len += scnprintf(buf + len, buf_len - len, "%25s\n", 475 "Target Rx stats"); 476 len += scnprintf(buf + len, buf_len - len, "%25s\n", 477 "================="); 478 479 len += scnprintf(buf + len, buf_len - len, "%20s %10llu\n", 480 "Ucast packets", tgt_stats->rx_ucast_pkt); 481 len += scnprintf(buf + len, buf_len - len, "%20s %10d\n", 482 "Ucast Rate", tgt_stats->rx_ucast_rate); 483 len += scnprintf(buf + len, buf_len - len, "%20s %10llu\n", 484 "Bcast packets", tgt_stats->rx_bcast_pkt); 485 len += scnprintf(buf + len, buf_len - len, "%20s %10llu\n", 486 "Ucast byte", tgt_stats->rx_ucast_byte); 487 len += scnprintf(buf + len, buf_len - len, "%20s %10llu\n", 488 "Bcast byte", tgt_stats->rx_bcast_byte); 489 len += scnprintf(buf + len, buf_len - len, "%20s %10llu\n", 490 "Fragmented pkt", tgt_stats->rx_frgment_pkt); 491 len += scnprintf(buf + len, buf_len - len, "%20s %10llu\n", 492 "Error", tgt_stats->rx_err); 493 len += scnprintf(buf + len, buf_len - len, "%20s %10llu\n", 494 "CRC Err", tgt_stats->rx_crc_err); 495 len += scnprintf(buf + len, buf_len - len, "%20s %10llu\n", 496 "Key chache miss", tgt_stats->rx_key_cache_miss); 497 len += scnprintf(buf + len, buf_len - len, "%20s %10llu\n", 498 "Decrypt Err", tgt_stats->rx_decrypt_err); 499 len += scnprintf(buf + len, buf_len - len, "%20s %10llu\n", 500 "Duplicate frame", tgt_stats->rx_dupl_frame); 501 len += scnprintf(buf + len, buf_len - len, "%20s %10llu\n", 502 "Tkip Mic failure", tgt_stats->tkip_local_mic_fail); 503 len += scnprintf(buf + len, buf_len - len, "%20s %10llu\n", 504 "TKIP format err", tgt_stats->tkip_fmt_err); 505 len += scnprintf(buf + len, buf_len - len, "%20s %10llu\n", 506 "CCMP format Err", tgt_stats->ccmp_fmt_err); 507 len += scnprintf(buf + len, buf_len - len, "%20s %10llu\n\n", 508 "CCMP Replay Err", tgt_stats->ccmp_replays); 509 510 len += scnprintf(buf + len, buf_len - len, "%25s\n", 511 "Misc Target stats"); 512 len += scnprintf(buf + len, buf_len - len, "%25s\n", 513 "================="); 514 len += scnprintf(buf + len, buf_len - len, "%20s %10llu\n", 515 "Beacon Miss count", tgt_stats->cs_bmiss_cnt); 516 len += scnprintf(buf + len, buf_len - len, "%20s %10llu\n", 517 "Num Connects", tgt_stats->cs_connect_cnt); 518 len += scnprintf(buf + len, buf_len - len, "%20s %10llu\n", 519 "Num disconnects", tgt_stats->cs_discon_cnt); 520 len += scnprintf(buf + len, buf_len - len, "%20s %10d\n", 521 "Beacon avg rssi", tgt_stats->cs_ave_beacon_rssi); 522 523 if (len > buf_len) 524 len = buf_len; 525 526 ret_cnt = simple_read_from_buffer(user_buf, count, ppos, buf, len); 527 528 kfree(buf); 529 return ret_cnt; 530 } 531 532 static const struct file_operations fops_tgt_stats = { 533 .read = read_file_tgt_stats, 534 .open = ath6kl_debugfs_open, 535 .owner = THIS_MODULE, 536 .llseek = default_llseek, 537 }; 538 539 #define print_credit_info(fmt_str, ep_list_field) \ 540 (len += scnprintf(buf + len, buf_len - len, fmt_str, \ 541 ep_list->ep_list_field)) 542 #define CREDIT_INFO_DISPLAY_STRING_LEN 200 543 #define CREDIT_INFO_LEN 128 544 545 static ssize_t read_file_credit_dist_stats(struct file *file, 546 char __user *user_buf, 547 size_t count, loff_t *ppos) 548 { 549 struct ath6kl *ar = file->private_data; 550 struct htc_target *target = ar->htc_target; 551 struct htc_endpoint_credit_dist *ep_list; 552 char *buf; 553 unsigned int buf_len, len = 0; 554 ssize_t ret_cnt; 555 556 buf_len = CREDIT_INFO_DISPLAY_STRING_LEN + 557 get_queue_depth(&target->cred_dist_list) * CREDIT_INFO_LEN; 558 buf = kzalloc(buf_len, GFP_KERNEL); 559 if (!buf) 560 return -ENOMEM; 561 562 len += scnprintf(buf + len, buf_len - len, "%25s%5d\n", 563 "Total Avail Credits: ", 564 target->credit_info->total_avail_credits); 565 len += scnprintf(buf + len, buf_len - len, "%25s%5d\n", 566 "Free credits :", 567 target->credit_info->cur_free_credits); 568 569 len += scnprintf(buf + len, buf_len - len, 570 " Epid Flags Cred_norm Cred_min Credits Cred_assngd" 571 " Seek_cred Cred_sz Cred_per_msg Cred_to_dist" 572 " qdepth\n"); 573 574 list_for_each_entry(ep_list, &target->cred_dist_list, list) { 575 print_credit_info(" %2d", endpoint); 576 print_credit_info("%10x", dist_flags); 577 print_credit_info("%8d", cred_norm); 578 print_credit_info("%9d", cred_min); 579 print_credit_info("%9d", credits); 580 print_credit_info("%10d", cred_assngd); 581 print_credit_info("%13d", seek_cred); 582 print_credit_info("%12d", cred_sz); 583 print_credit_info("%9d", cred_per_msg); 584 print_credit_info("%14d", cred_to_dist); 585 len += scnprintf(buf + len, buf_len - len, "%12d\n", 586 get_queue_depth(&ep_list->htc_ep->txq)); 587 } 588 589 if (len > buf_len) 590 len = buf_len; 591 592 ret_cnt = simple_read_from_buffer(user_buf, count, ppos, buf, len); 593 kfree(buf); 594 return ret_cnt; 595 } 596 597 static const struct file_operations fops_credit_dist_stats = { 598 .read = read_file_credit_dist_stats, 599 .open = ath6kl_debugfs_open, 600 .owner = THIS_MODULE, 601 .llseek = default_llseek, 602 }; 603 604 static unsigned int print_endpoint_stat(struct htc_target *target, char *buf, 605 unsigned int buf_len, unsigned int len, 606 int offset, const char *name) 607 { 608 int i; 609 struct htc_endpoint_stats *ep_st; 610 u32 *counter; 611 612 len += scnprintf(buf + len, buf_len - len, "%s:", name); 613 for (i = 0; i < ENDPOINT_MAX; i++) { 614 ep_st = &target->endpoint[i].ep_st; 615 counter = ((u32 *) ep_st) + (offset / 4); 616 len += scnprintf(buf + len, buf_len - len, " %u", *counter); 617 } 618 len += scnprintf(buf + len, buf_len - len, "\n"); 619 620 return len; 621 } 622 623 static ssize_t ath6kl_endpoint_stats_read(struct file *file, 624 char __user *user_buf, 625 size_t count, loff_t *ppos) 626 { 627 struct ath6kl *ar = file->private_data; 628 struct htc_target *target = ar->htc_target; 629 char *buf; 630 unsigned int buf_len, len = 0; 631 ssize_t ret_cnt; 632 633 buf_len = sizeof(struct htc_endpoint_stats) / sizeof(u32) * 634 (25 + ENDPOINT_MAX * 11); 635 buf = kmalloc(buf_len, GFP_KERNEL); 636 if (!buf) 637 return -ENOMEM; 638 639 #define EPSTAT(name) \ 640 len = print_endpoint_stat(target, buf, buf_len, len, \ 641 offsetof(struct htc_endpoint_stats, name), \ 642 #name) 643 EPSTAT(cred_low_indicate); 644 EPSTAT(tx_issued); 645 EPSTAT(tx_pkt_bundled); 646 EPSTAT(tx_bundles); 647 EPSTAT(tx_dropped); 648 EPSTAT(tx_cred_rpt); 649 EPSTAT(cred_rpt_from_rx); 650 EPSTAT(cred_rpt_from_other); 651 EPSTAT(cred_rpt_ep0); 652 EPSTAT(cred_from_rx); 653 EPSTAT(cred_from_other); 654 EPSTAT(cred_from_ep0); 655 EPSTAT(cred_cosumd); 656 EPSTAT(cred_retnd); 657 EPSTAT(rx_pkts); 658 EPSTAT(rx_lkahds); 659 EPSTAT(rx_bundl); 660 EPSTAT(rx_bundle_lkahd); 661 EPSTAT(rx_bundle_from_hdr); 662 EPSTAT(rx_alloc_thresh_hit); 663 EPSTAT(rxalloc_thresh_byte); 664 #undef EPSTAT 665 666 if (len > buf_len) 667 len = buf_len; 668 669 ret_cnt = simple_read_from_buffer(user_buf, count, ppos, buf, len); 670 kfree(buf); 671 return ret_cnt; 672 } 673 674 static ssize_t ath6kl_endpoint_stats_write(struct file *file, 675 const char __user *user_buf, 676 size_t count, loff_t *ppos) 677 { 678 struct ath6kl *ar = file->private_data; 679 struct htc_target *target = ar->htc_target; 680 int ret, i; 681 u32 val; 682 struct htc_endpoint_stats *ep_st; 683 684 ret = kstrtou32_from_user(user_buf, count, 0, &val); 685 if (ret) 686 return ret; 687 if (val == 0) { 688 for (i = 0; i < ENDPOINT_MAX; i++) { 689 ep_st = &target->endpoint[i].ep_st; 690 memset(ep_st, 0, sizeof(*ep_st)); 691 } 692 } 693 694 return count; 695 } 696 697 static const struct file_operations fops_endpoint_stats = { 698 .open = ath6kl_debugfs_open, 699 .read = ath6kl_endpoint_stats_read, 700 .write = ath6kl_endpoint_stats_write, 701 .owner = THIS_MODULE, 702 .llseek = default_llseek, 703 }; 704 705 static unsigned long ath6kl_get_num_reg(void) 706 { 707 int i; 708 unsigned long n_reg = 0; 709 710 for (i = 0; i < ARRAY_SIZE(diag_reg); i++) 711 n_reg = n_reg + 712 (diag_reg[i].reg_end - diag_reg[i].reg_start) / 4 + 1; 713 714 return n_reg; 715 } 716 717 static bool ath6kl_dbg_is_diag_reg_valid(u32 reg_addr) 718 { 719 int i; 720 721 for (i = 0; i < ARRAY_SIZE(diag_reg); i++) { 722 if (reg_addr >= diag_reg[i].reg_start && 723 reg_addr <= diag_reg[i].reg_end) 724 return true; 725 } 726 727 return false; 728 } 729 730 static ssize_t ath6kl_regread_read(struct file *file, char __user *user_buf, 731 size_t count, loff_t *ppos) 732 { 733 struct ath6kl *ar = file->private_data; 734 u8 buf[50]; 735 unsigned int len = 0; 736 737 if (ar->debug.dbgfs_diag_reg) 738 len += scnprintf(buf + len, sizeof(buf) - len, "0x%x\n", 739 ar->debug.dbgfs_diag_reg); 740 else 741 len += scnprintf(buf + len, sizeof(buf) - len, 742 "All diag registers\n"); 743 744 return simple_read_from_buffer(user_buf, count, ppos, buf, len); 745 } 746 747 static ssize_t ath6kl_regread_write(struct file *file, 748 const char __user *user_buf, 749 size_t count, loff_t *ppos) 750 { 751 struct ath6kl *ar = file->private_data; 752 u8 buf[50]; 753 unsigned int len; 754 unsigned long reg_addr; 755 756 len = min(count, sizeof(buf) - 1); 757 if (copy_from_user(buf, user_buf, len)) 758 return -EFAULT; 759 760 buf[len] = '\0'; 761 762 if (strict_strtoul(buf, 0, ®_addr)) 763 return -EINVAL; 764 765 if ((reg_addr % 4) != 0) 766 return -EINVAL; 767 768 if (reg_addr && !ath6kl_dbg_is_diag_reg_valid(reg_addr)) 769 return -EINVAL; 770 771 ar->debug.dbgfs_diag_reg = reg_addr; 772 773 return count; 774 } 775 776 static const struct file_operations fops_diag_reg_read = { 777 .read = ath6kl_regread_read, 778 .write = ath6kl_regread_write, 779 .open = ath6kl_debugfs_open, 780 .owner = THIS_MODULE, 781 .llseek = default_llseek, 782 }; 783 784 static int ath6kl_regdump_open(struct inode *inode, struct file *file) 785 { 786 struct ath6kl *ar = inode->i_private; 787 u8 *buf; 788 unsigned long int reg_len; 789 unsigned int len = 0, n_reg; 790 u32 addr; 791 __le32 reg_val; 792 int i, status; 793 794 /* Dump all the registers if no register is specified */ 795 if (!ar->debug.dbgfs_diag_reg) 796 n_reg = ath6kl_get_num_reg(); 797 else 798 n_reg = 1; 799 800 reg_len = n_reg * REG_OUTPUT_LEN_PER_LINE; 801 if (n_reg > 1) 802 reg_len += REGTYPE_STR_LEN; 803 804 buf = vmalloc(reg_len); 805 if (!buf) 806 return -ENOMEM; 807 808 if (n_reg == 1) { 809 addr = ar->debug.dbgfs_diag_reg; 810 811 status = ath6kl_diag_read32(ar, 812 TARG_VTOP(ar->target_type, addr), 813 (u32 *)®_val); 814 if (status) 815 goto fail_reg_read; 816 817 len += scnprintf(buf + len, reg_len - len, 818 "0x%06x 0x%08x\n", addr, le32_to_cpu(reg_val)); 819 goto done; 820 } 821 822 for (i = 0; i < ARRAY_SIZE(diag_reg); i++) { 823 len += scnprintf(buf + len, reg_len - len, 824 "%s\n", diag_reg[i].reg_info); 825 for (addr = diag_reg[i].reg_start; 826 addr <= diag_reg[i].reg_end; addr += 4) { 827 status = ath6kl_diag_read32(ar, 828 TARG_VTOP(ar->target_type, addr), 829 (u32 *)®_val); 830 if (status) 831 goto fail_reg_read; 832 833 len += scnprintf(buf + len, reg_len - len, 834 "0x%06x 0x%08x\n", 835 addr, le32_to_cpu(reg_val)); 836 } 837 } 838 839 done: 840 file->private_data = buf; 841 return 0; 842 843 fail_reg_read: 844 ath6kl_warn("Unable to read memory:%u\n", addr); 845 vfree(buf); 846 return -EIO; 847 } 848 849 static ssize_t ath6kl_regdump_read(struct file *file, char __user *user_buf, 850 size_t count, loff_t *ppos) 851 { 852 u8 *buf = file->private_data; 853 return simple_read_from_buffer(user_buf, count, ppos, buf, strlen(buf)); 854 } 855 856 static int ath6kl_regdump_release(struct inode *inode, struct file *file) 857 { 858 vfree(file->private_data); 859 return 0; 860 } 861 862 static const struct file_operations fops_reg_dump = { 863 .open = ath6kl_regdump_open, 864 .read = ath6kl_regdump_read, 865 .release = ath6kl_regdump_release, 866 .owner = THIS_MODULE, 867 .llseek = default_llseek, 868 }; 869 870 static ssize_t ath6kl_lrssi_roam_write(struct file *file, 871 const char __user *user_buf, 872 size_t count, loff_t *ppos) 873 { 874 struct ath6kl *ar = file->private_data; 875 unsigned long lrssi_roam_threshold; 876 char buf[32]; 877 ssize_t len; 878 879 len = min(count, sizeof(buf) - 1); 880 if (copy_from_user(buf, user_buf, len)) 881 return -EFAULT; 882 883 buf[len] = '\0'; 884 if (strict_strtoul(buf, 0, &lrssi_roam_threshold)) 885 return -EINVAL; 886 887 ar->lrssi_roam_threshold = lrssi_roam_threshold; 888 889 ath6kl_wmi_set_roam_lrssi_cmd(ar->wmi, ar->lrssi_roam_threshold); 890 891 return count; 892 } 893 894 static ssize_t ath6kl_lrssi_roam_read(struct file *file, 895 char __user *user_buf, 896 size_t count, loff_t *ppos) 897 { 898 struct ath6kl *ar = file->private_data; 899 char buf[32]; 900 unsigned int len; 901 902 len = snprintf(buf, sizeof(buf), "%u\n", ar->lrssi_roam_threshold); 903 904 return simple_read_from_buffer(user_buf, count, ppos, buf, len); 905 } 906 907 static const struct file_operations fops_lrssi_roam_threshold = { 908 .read = ath6kl_lrssi_roam_read, 909 .write = ath6kl_lrssi_roam_write, 910 .open = ath6kl_debugfs_open, 911 .owner = THIS_MODULE, 912 .llseek = default_llseek, 913 }; 914 915 static ssize_t ath6kl_regwrite_read(struct file *file, 916 char __user *user_buf, 917 size_t count, loff_t *ppos) 918 { 919 struct ath6kl *ar = file->private_data; 920 u8 buf[32]; 921 unsigned int len = 0; 922 923 len = scnprintf(buf, sizeof(buf), "Addr: 0x%x Val: 0x%x\n", 924 ar->debug.diag_reg_addr_wr, ar->debug.diag_reg_val_wr); 925 926 return simple_read_from_buffer(user_buf, count, ppos, buf, len); 927 } 928 929 static ssize_t ath6kl_regwrite_write(struct file *file, 930 const char __user *user_buf, 931 size_t count, loff_t *ppos) 932 { 933 struct ath6kl *ar = file->private_data; 934 char buf[32]; 935 char *sptr, *token; 936 unsigned int len = 0; 937 u32 reg_addr, reg_val; 938 939 len = min(count, sizeof(buf) - 1); 940 if (copy_from_user(buf, user_buf, len)) 941 return -EFAULT; 942 943 buf[len] = '\0'; 944 sptr = buf; 945 946 token = strsep(&sptr, "="); 947 if (!token) 948 return -EINVAL; 949 950 if (kstrtou32(token, 0, ®_addr)) 951 return -EINVAL; 952 953 if (!ath6kl_dbg_is_diag_reg_valid(reg_addr)) 954 return -EINVAL; 955 956 if (kstrtou32(sptr, 0, ®_val)) 957 return -EINVAL; 958 959 ar->debug.diag_reg_addr_wr = reg_addr; 960 ar->debug.diag_reg_val_wr = reg_val; 961 962 if (ath6kl_diag_write32(ar, ar->debug.diag_reg_addr_wr, 963 cpu_to_le32(ar->debug.diag_reg_val_wr))) 964 return -EIO; 965 966 return count; 967 } 968 969 static const struct file_operations fops_diag_reg_write = { 970 .read = ath6kl_regwrite_read, 971 .write = ath6kl_regwrite_write, 972 .open = ath6kl_debugfs_open, 973 .owner = THIS_MODULE, 974 .llseek = default_llseek, 975 }; 976 977 int ath6kl_debug_roam_tbl_event(struct ath6kl *ar, const void *buf, 978 size_t len) 979 { 980 const struct wmi_target_roam_tbl *tbl; 981 u16 num_entries; 982 983 if (len < sizeof(*tbl)) 984 return -EINVAL; 985 986 tbl = (const struct wmi_target_roam_tbl *) buf; 987 num_entries = le16_to_cpu(tbl->num_entries); 988 if (sizeof(*tbl) + num_entries * sizeof(struct wmi_bss_roam_info) > 989 len) 990 return -EINVAL; 991 992 if (ar->debug.roam_tbl == NULL || 993 ar->debug.roam_tbl_len < (unsigned int) len) { 994 kfree(ar->debug.roam_tbl); 995 ar->debug.roam_tbl = kmalloc(len, GFP_ATOMIC); 996 if (ar->debug.roam_tbl == NULL) 997 return -ENOMEM; 998 } 999 1000 memcpy(ar->debug.roam_tbl, buf, len); 1001 ar->debug.roam_tbl_len = len; 1002 1003 if (test_bit(ROAM_TBL_PEND, &ar->flag)) { 1004 clear_bit(ROAM_TBL_PEND, &ar->flag); 1005 wake_up(&ar->event_wq); 1006 } 1007 1008 return 0; 1009 } 1010 1011 static ssize_t ath6kl_roam_table_read(struct file *file, char __user *user_buf, 1012 size_t count, loff_t *ppos) 1013 { 1014 struct ath6kl *ar = file->private_data; 1015 int ret; 1016 long left; 1017 struct wmi_target_roam_tbl *tbl; 1018 u16 num_entries, i; 1019 char *buf; 1020 unsigned int len, buf_len; 1021 ssize_t ret_cnt; 1022 1023 if (down_interruptible(&ar->sem)) 1024 return -EBUSY; 1025 1026 set_bit(ROAM_TBL_PEND, &ar->flag); 1027 1028 ret = ath6kl_wmi_get_roam_tbl_cmd(ar->wmi); 1029 if (ret) { 1030 up(&ar->sem); 1031 return ret; 1032 } 1033 1034 left = wait_event_interruptible_timeout( 1035 ar->event_wq, !test_bit(ROAM_TBL_PEND, &ar->flag), WMI_TIMEOUT); 1036 up(&ar->sem); 1037 1038 if (left <= 0) 1039 return -ETIMEDOUT; 1040 1041 if (ar->debug.roam_tbl == NULL) 1042 return -ENOMEM; 1043 1044 tbl = (struct wmi_target_roam_tbl *) ar->debug.roam_tbl; 1045 num_entries = le16_to_cpu(tbl->num_entries); 1046 1047 buf_len = 100 + num_entries * 100; 1048 buf = kzalloc(buf_len, GFP_KERNEL); 1049 if (buf == NULL) 1050 return -ENOMEM; 1051 len = 0; 1052 len += scnprintf(buf + len, buf_len - len, 1053 "roam_mode=%u\n\n" 1054 "# roam_util bssid rssi rssidt last_rssi util bias\n", 1055 le16_to_cpu(tbl->roam_mode)); 1056 1057 for (i = 0; i < num_entries; i++) { 1058 struct wmi_bss_roam_info *info = &tbl->info[i]; 1059 len += scnprintf(buf + len, buf_len - len, 1060 "%d %pM %d %d %d %d %d\n", 1061 a_sle32_to_cpu(info->roam_util), info->bssid, 1062 info->rssi, info->rssidt, info->last_rssi, 1063 info->util, info->bias); 1064 } 1065 1066 if (len > buf_len) 1067 len = buf_len; 1068 1069 ret_cnt = simple_read_from_buffer(user_buf, count, ppos, buf, len); 1070 1071 kfree(buf); 1072 return ret_cnt; 1073 } 1074 1075 static const struct file_operations fops_roam_table = { 1076 .read = ath6kl_roam_table_read, 1077 .open = ath6kl_debugfs_open, 1078 .owner = THIS_MODULE, 1079 .llseek = default_llseek, 1080 }; 1081 1082 static ssize_t ath6kl_force_roam_write(struct file *file, 1083 const char __user *user_buf, 1084 size_t count, loff_t *ppos) 1085 { 1086 struct ath6kl *ar = file->private_data; 1087 int ret; 1088 char buf[20]; 1089 size_t len; 1090 u8 bssid[ETH_ALEN]; 1091 int i; 1092 int addr[ETH_ALEN]; 1093 1094 len = min(count, sizeof(buf) - 1); 1095 if (copy_from_user(buf, user_buf, len)) 1096 return -EFAULT; 1097 buf[len] = '\0'; 1098 1099 if (sscanf(buf, "%02x:%02x:%02x:%02x:%02x:%02x", 1100 &addr[0], &addr[1], &addr[2], &addr[3], &addr[4], &addr[5]) 1101 != ETH_ALEN) 1102 return -EINVAL; 1103 for (i = 0; i < ETH_ALEN; i++) 1104 bssid[i] = addr[i]; 1105 1106 ret = ath6kl_wmi_force_roam_cmd(ar->wmi, bssid); 1107 if (ret) 1108 return ret; 1109 1110 return count; 1111 } 1112 1113 static const struct file_operations fops_force_roam = { 1114 .write = ath6kl_force_roam_write, 1115 .open = ath6kl_debugfs_open, 1116 .owner = THIS_MODULE, 1117 .llseek = default_llseek, 1118 }; 1119 1120 static ssize_t ath6kl_roam_mode_write(struct file *file, 1121 const char __user *user_buf, 1122 size_t count, loff_t *ppos) 1123 { 1124 struct ath6kl *ar = file->private_data; 1125 int ret; 1126 char buf[20]; 1127 size_t len; 1128 enum wmi_roam_mode mode; 1129 1130 len = min(count, sizeof(buf) - 1); 1131 if (copy_from_user(buf, user_buf, len)) 1132 return -EFAULT; 1133 buf[len] = '\0'; 1134 if (len > 0 && buf[len - 1] == '\n') 1135 buf[len - 1] = '\0'; 1136 1137 if (strcasecmp(buf, "default") == 0) 1138 mode = WMI_DEFAULT_ROAM_MODE; 1139 else if (strcasecmp(buf, "bssbias") == 0) 1140 mode = WMI_HOST_BIAS_ROAM_MODE; 1141 else if (strcasecmp(buf, "lock") == 0) 1142 mode = WMI_LOCK_BSS_MODE; 1143 else 1144 return -EINVAL; 1145 1146 ret = ath6kl_wmi_set_roam_mode_cmd(ar->wmi, mode); 1147 if (ret) 1148 return ret; 1149 1150 return count; 1151 } 1152 1153 static const struct file_operations fops_roam_mode = { 1154 .write = ath6kl_roam_mode_write, 1155 .open = ath6kl_debugfs_open, 1156 .owner = THIS_MODULE, 1157 .llseek = default_llseek, 1158 }; 1159 1160 void ath6kl_debug_set_keepalive(struct ath6kl *ar, u8 keepalive) 1161 { 1162 ar->debug.keepalive = keepalive; 1163 } 1164 1165 static ssize_t ath6kl_keepalive_read(struct file *file, char __user *user_buf, 1166 size_t count, loff_t *ppos) 1167 { 1168 struct ath6kl *ar = file->private_data; 1169 char buf[16]; 1170 int len; 1171 1172 len = snprintf(buf, sizeof(buf), "%u\n", ar->debug.keepalive); 1173 1174 return simple_read_from_buffer(user_buf, count, ppos, buf, len); 1175 } 1176 1177 static ssize_t ath6kl_keepalive_write(struct file *file, 1178 const char __user *user_buf, 1179 size_t count, loff_t *ppos) 1180 { 1181 struct ath6kl *ar = file->private_data; 1182 int ret; 1183 u8 val; 1184 1185 ret = kstrtou8_from_user(user_buf, count, 0, &val); 1186 if (ret) 1187 return ret; 1188 1189 ret = ath6kl_wmi_set_keepalive_cmd(ar->wmi, 0, val); 1190 if (ret) 1191 return ret; 1192 1193 return count; 1194 } 1195 1196 static const struct file_operations fops_keepalive = { 1197 .open = ath6kl_debugfs_open, 1198 .read = ath6kl_keepalive_read, 1199 .write = ath6kl_keepalive_write, 1200 .owner = THIS_MODULE, 1201 .llseek = default_llseek, 1202 }; 1203 1204 void ath6kl_debug_set_disconnect_timeout(struct ath6kl *ar, u8 timeout) 1205 { 1206 ar->debug.disc_timeout = timeout; 1207 } 1208 1209 static ssize_t ath6kl_disconnect_timeout_read(struct file *file, 1210 char __user *user_buf, 1211 size_t count, loff_t *ppos) 1212 { 1213 struct ath6kl *ar = file->private_data; 1214 char buf[16]; 1215 int len; 1216 1217 len = snprintf(buf, sizeof(buf), "%u\n", ar->debug.disc_timeout); 1218 1219 return simple_read_from_buffer(user_buf, count, ppos, buf, len); 1220 } 1221 1222 static ssize_t ath6kl_disconnect_timeout_write(struct file *file, 1223 const char __user *user_buf, 1224 size_t count, loff_t *ppos) 1225 { 1226 struct ath6kl *ar = file->private_data; 1227 int ret; 1228 u8 val; 1229 1230 ret = kstrtou8_from_user(user_buf, count, 0, &val); 1231 if (ret) 1232 return ret; 1233 1234 ret = ath6kl_wmi_disctimeout_cmd(ar->wmi, 0, val); 1235 if (ret) 1236 return ret; 1237 1238 return count; 1239 } 1240 1241 static const struct file_operations fops_disconnect_timeout = { 1242 .open = ath6kl_debugfs_open, 1243 .read = ath6kl_disconnect_timeout_read, 1244 .write = ath6kl_disconnect_timeout_write, 1245 .owner = THIS_MODULE, 1246 .llseek = default_llseek, 1247 }; 1248 1249 static ssize_t ath6kl_create_qos_write(struct file *file, 1250 const char __user *user_buf, 1251 size_t count, loff_t *ppos) 1252 { 1253 1254 struct ath6kl *ar = file->private_data; 1255 struct ath6kl_vif *vif; 1256 char buf[200]; 1257 ssize_t len; 1258 char *sptr, *token; 1259 struct wmi_create_pstream_cmd pstream; 1260 u32 val32; 1261 u16 val16; 1262 1263 vif = ath6kl_vif_first(ar); 1264 if (!vif) 1265 return -EIO; 1266 1267 len = min(count, sizeof(buf) - 1); 1268 if (copy_from_user(buf, user_buf, len)) 1269 return -EFAULT; 1270 buf[len] = '\0'; 1271 sptr = buf; 1272 1273 token = strsep(&sptr, " "); 1274 if (!token) 1275 return -EINVAL; 1276 if (kstrtou8(token, 0, &pstream.user_pri)) 1277 return -EINVAL; 1278 1279 token = strsep(&sptr, " "); 1280 if (!token) 1281 return -EINVAL; 1282 if (kstrtou8(token, 0, &pstream.traffic_direc)) 1283 return -EINVAL; 1284 1285 token = strsep(&sptr, " "); 1286 if (!token) 1287 return -EINVAL; 1288 if (kstrtou8(token, 0, &pstream.traffic_class)) 1289 return -EINVAL; 1290 1291 token = strsep(&sptr, " "); 1292 if (!token) 1293 return -EINVAL; 1294 if (kstrtou8(token, 0, &pstream.traffic_type)) 1295 return -EINVAL; 1296 1297 token = strsep(&sptr, " "); 1298 if (!token) 1299 return -EINVAL; 1300 if (kstrtou8(token, 0, &pstream.voice_psc_cap)) 1301 return -EINVAL; 1302 1303 token = strsep(&sptr, " "); 1304 if (!token) 1305 return -EINVAL; 1306 if (kstrtou32(token, 0, &val32)) 1307 return -EINVAL; 1308 pstream.min_service_int = cpu_to_le32(val32); 1309 1310 token = strsep(&sptr, " "); 1311 if (!token) 1312 return -EINVAL; 1313 if (kstrtou32(token, 0, &val32)) 1314 return -EINVAL; 1315 pstream.max_service_int = cpu_to_le32(val32); 1316 1317 token = strsep(&sptr, " "); 1318 if (!token) 1319 return -EINVAL; 1320 if (kstrtou32(token, 0, &val32)) 1321 return -EINVAL; 1322 pstream.inactivity_int = cpu_to_le32(val32); 1323 1324 token = strsep(&sptr, " "); 1325 if (!token) 1326 return -EINVAL; 1327 if (kstrtou32(token, 0, &val32)) 1328 return -EINVAL; 1329 pstream.suspension_int = cpu_to_le32(val32); 1330 1331 token = strsep(&sptr, " "); 1332 if (!token) 1333 return -EINVAL; 1334 if (kstrtou32(token, 0, &val32)) 1335 return -EINVAL; 1336 pstream.service_start_time = cpu_to_le32(val32); 1337 1338 token = strsep(&sptr, " "); 1339 if (!token) 1340 return -EINVAL; 1341 if (kstrtou8(token, 0, &pstream.tsid)) 1342 return -EINVAL; 1343 1344 token = strsep(&sptr, " "); 1345 if (!token) 1346 return -EINVAL; 1347 if (kstrtou16(token, 0, &val16)) 1348 return -EINVAL; 1349 pstream.nominal_msdu = cpu_to_le16(val16); 1350 1351 token = strsep(&sptr, " "); 1352 if (!token) 1353 return -EINVAL; 1354 if (kstrtou16(token, 0, &val16)) 1355 return -EINVAL; 1356 pstream.max_msdu = cpu_to_le16(val16); 1357 1358 token = strsep(&sptr, " "); 1359 if (!token) 1360 return -EINVAL; 1361 if (kstrtou32(token, 0, &val32)) 1362 return -EINVAL; 1363 pstream.min_data_rate = cpu_to_le32(val32); 1364 1365 token = strsep(&sptr, " "); 1366 if (!token) 1367 return -EINVAL; 1368 if (kstrtou32(token, 0, &val32)) 1369 return -EINVAL; 1370 pstream.mean_data_rate = cpu_to_le32(val32); 1371 1372 token = strsep(&sptr, " "); 1373 if (!token) 1374 return -EINVAL; 1375 if (kstrtou32(token, 0, &val32)) 1376 return -EINVAL; 1377 pstream.peak_data_rate = cpu_to_le32(val32); 1378 1379 token = strsep(&sptr, " "); 1380 if (!token) 1381 return -EINVAL; 1382 if (kstrtou32(token, 0, &val32)) 1383 return -EINVAL; 1384 pstream.max_burst_size = cpu_to_le32(val32); 1385 1386 token = strsep(&sptr, " "); 1387 if (!token) 1388 return -EINVAL; 1389 if (kstrtou32(token, 0, &val32)) 1390 return -EINVAL; 1391 pstream.delay_bound = cpu_to_le32(val32); 1392 1393 token = strsep(&sptr, " "); 1394 if (!token) 1395 return -EINVAL; 1396 if (kstrtou32(token, 0, &val32)) 1397 return -EINVAL; 1398 pstream.min_phy_rate = cpu_to_le32(val32); 1399 1400 token = strsep(&sptr, " "); 1401 if (!token) 1402 return -EINVAL; 1403 if (kstrtou32(token, 0, &val32)) 1404 return -EINVAL; 1405 pstream.sba = cpu_to_le32(val32); 1406 1407 token = strsep(&sptr, " "); 1408 if (!token) 1409 return -EINVAL; 1410 if (kstrtou32(token, 0, &val32)) 1411 return -EINVAL; 1412 pstream.medium_time = cpu_to_le32(val32); 1413 1414 ath6kl_wmi_create_pstream_cmd(ar->wmi, vif->fw_vif_idx, &pstream); 1415 1416 return count; 1417 } 1418 1419 static const struct file_operations fops_create_qos = { 1420 .write = ath6kl_create_qos_write, 1421 .open = ath6kl_debugfs_open, 1422 .owner = THIS_MODULE, 1423 .llseek = default_llseek, 1424 }; 1425 1426 static ssize_t ath6kl_delete_qos_write(struct file *file, 1427 const char __user *user_buf, 1428 size_t count, loff_t *ppos) 1429 { 1430 1431 struct ath6kl *ar = file->private_data; 1432 struct ath6kl_vif *vif; 1433 char buf[100]; 1434 ssize_t len; 1435 char *sptr, *token; 1436 u8 traffic_class; 1437 u8 tsid; 1438 1439 vif = ath6kl_vif_first(ar); 1440 if (!vif) 1441 return -EIO; 1442 1443 len = min(count, sizeof(buf) - 1); 1444 if (copy_from_user(buf, user_buf, len)) 1445 return -EFAULT; 1446 buf[len] = '\0'; 1447 sptr = buf; 1448 1449 token = strsep(&sptr, " "); 1450 if (!token) 1451 return -EINVAL; 1452 if (kstrtou8(token, 0, &traffic_class)) 1453 return -EINVAL; 1454 1455 token = strsep(&sptr, " "); 1456 if (!token) 1457 return -EINVAL; 1458 if (kstrtou8(token, 0, &tsid)) 1459 return -EINVAL; 1460 1461 ath6kl_wmi_delete_pstream_cmd(ar->wmi, vif->fw_vif_idx, 1462 traffic_class, tsid); 1463 1464 return count; 1465 } 1466 1467 static const struct file_operations fops_delete_qos = { 1468 .write = ath6kl_delete_qos_write, 1469 .open = ath6kl_debugfs_open, 1470 .owner = THIS_MODULE, 1471 .llseek = default_llseek, 1472 }; 1473 1474 static ssize_t ath6kl_bgscan_int_write(struct file *file, 1475 const char __user *user_buf, 1476 size_t count, loff_t *ppos) 1477 { 1478 struct ath6kl *ar = file->private_data; 1479 u16 bgscan_int; 1480 char buf[32]; 1481 ssize_t len; 1482 1483 len = min(count, sizeof(buf) - 1); 1484 if (copy_from_user(buf, user_buf, len)) 1485 return -EFAULT; 1486 1487 buf[len] = '\0'; 1488 if (kstrtou16(buf, 0, &bgscan_int)) 1489 return -EINVAL; 1490 1491 if (bgscan_int == 0) 1492 bgscan_int = 0xffff; 1493 1494 ath6kl_wmi_scanparams_cmd(ar->wmi, 0, 0, 0, bgscan_int, 0, 0, 0, 3, 1495 0, 0, 0); 1496 1497 return count; 1498 } 1499 1500 static const struct file_operations fops_bgscan_int = { 1501 .write = ath6kl_bgscan_int_write, 1502 .open = ath6kl_debugfs_open, 1503 .owner = THIS_MODULE, 1504 .llseek = default_llseek, 1505 }; 1506 1507 static ssize_t ath6kl_listen_int_write(struct file *file, 1508 const char __user *user_buf, 1509 size_t count, loff_t *ppos) 1510 { 1511 struct ath6kl *ar = file->private_data; 1512 u16 listen_int_t, listen_int_b; 1513 char buf[32]; 1514 char *sptr, *token; 1515 ssize_t len; 1516 1517 len = min(count, sizeof(buf) - 1); 1518 if (copy_from_user(buf, user_buf, len)) 1519 return -EFAULT; 1520 1521 buf[len] = '\0'; 1522 sptr = buf; 1523 1524 token = strsep(&sptr, " "); 1525 if (!token) 1526 return -EINVAL; 1527 1528 if (kstrtou16(token, 0, &listen_int_t)) 1529 return -EINVAL; 1530 1531 if (kstrtou16(sptr, 0, &listen_int_b)) 1532 return -EINVAL; 1533 1534 if ((listen_int_t < 15) || (listen_int_t > 5000)) 1535 return -EINVAL; 1536 1537 if ((listen_int_b < 1) || (listen_int_b > 50)) 1538 return -EINVAL; 1539 1540 ar->listen_intvl_t = listen_int_t; 1541 ar->listen_intvl_b = listen_int_b; 1542 1543 ath6kl_wmi_listeninterval_cmd(ar->wmi, 0, ar->listen_intvl_t, 1544 ar->listen_intvl_b); 1545 1546 return count; 1547 } 1548 1549 static ssize_t ath6kl_listen_int_read(struct file *file, 1550 char __user *user_buf, 1551 size_t count, loff_t *ppos) 1552 { 1553 struct ath6kl *ar = file->private_data; 1554 char buf[32]; 1555 int len; 1556 1557 len = scnprintf(buf, sizeof(buf), "%u %u\n", ar->listen_intvl_t, 1558 ar->listen_intvl_b); 1559 1560 return simple_read_from_buffer(user_buf, count, ppos, buf, len); 1561 } 1562 1563 static const struct file_operations fops_listen_int = { 1564 .read = ath6kl_listen_int_read, 1565 .write = ath6kl_listen_int_write, 1566 .open = ath6kl_debugfs_open, 1567 .owner = THIS_MODULE, 1568 .llseek = default_llseek, 1569 }; 1570 1571 static ssize_t ath6kl_power_params_write(struct file *file, 1572 const char __user *user_buf, 1573 size_t count, loff_t *ppos) 1574 { 1575 struct ath6kl *ar = file->private_data; 1576 u8 buf[100]; 1577 unsigned int len = 0; 1578 char *sptr, *token; 1579 u16 idle_period, ps_poll_num, dtim, 1580 tx_wakeup, num_tx; 1581 1582 len = min(count, sizeof(buf) - 1); 1583 if (copy_from_user(buf, user_buf, len)) 1584 return -EFAULT; 1585 buf[len] = '\0'; 1586 sptr = buf; 1587 1588 token = strsep(&sptr, " "); 1589 if (!token) 1590 return -EINVAL; 1591 if (kstrtou16(token, 0, &idle_period)) 1592 return -EINVAL; 1593 1594 token = strsep(&sptr, " "); 1595 if (!token) 1596 return -EINVAL; 1597 if (kstrtou16(token, 0, &ps_poll_num)) 1598 return -EINVAL; 1599 1600 token = strsep(&sptr, " "); 1601 if (!token) 1602 return -EINVAL; 1603 if (kstrtou16(token, 0, &dtim)) 1604 return -EINVAL; 1605 1606 token = strsep(&sptr, " "); 1607 if (!token) 1608 return -EINVAL; 1609 if (kstrtou16(token, 0, &tx_wakeup)) 1610 return -EINVAL; 1611 1612 token = strsep(&sptr, " "); 1613 if (!token) 1614 return -EINVAL; 1615 if (kstrtou16(token, 0, &num_tx)) 1616 return -EINVAL; 1617 1618 ath6kl_wmi_pmparams_cmd(ar->wmi, 0, idle_period, ps_poll_num, 1619 dtim, tx_wakeup, num_tx, 0); 1620 1621 return count; 1622 } 1623 1624 static const struct file_operations fops_power_params = { 1625 .write = ath6kl_power_params_write, 1626 .open = ath6kl_debugfs_open, 1627 .owner = THIS_MODULE, 1628 .llseek = default_llseek, 1629 }; 1630 1631 int ath6kl_debug_init(struct ath6kl *ar) 1632 { 1633 ar->debug.fwlog_buf.buf = vmalloc(ATH6KL_FWLOG_SIZE); 1634 if (ar->debug.fwlog_buf.buf == NULL) 1635 return -ENOMEM; 1636 1637 ar->debug.fwlog_tmp = kmalloc(ATH6KL_FWLOG_SLOT_SIZE, GFP_KERNEL); 1638 if (ar->debug.fwlog_tmp == NULL) { 1639 vfree(ar->debug.fwlog_buf.buf); 1640 return -ENOMEM; 1641 } 1642 1643 spin_lock_init(&ar->debug.fwlog_lock); 1644 1645 /* 1646 * Actually we are lying here but don't know how to read the mask 1647 * value from the firmware. 1648 */ 1649 ar->debug.fwlog_mask = 0; 1650 1651 ar->debugfs_phy = debugfs_create_dir("ath6kl", 1652 ar->wiphy->debugfsdir); 1653 if (!ar->debugfs_phy) { 1654 vfree(ar->debug.fwlog_buf.buf); 1655 kfree(ar->debug.fwlog_tmp); 1656 return -ENOMEM; 1657 } 1658 1659 debugfs_create_file("tgt_stats", S_IRUSR, ar->debugfs_phy, ar, 1660 &fops_tgt_stats); 1661 1662 debugfs_create_file("credit_dist_stats", S_IRUSR, ar->debugfs_phy, ar, 1663 &fops_credit_dist_stats); 1664 1665 debugfs_create_file("endpoint_stats", S_IRUSR | S_IWUSR, 1666 ar->debugfs_phy, ar, &fops_endpoint_stats); 1667 1668 debugfs_create_file("fwlog", S_IRUSR, ar->debugfs_phy, ar, 1669 &fops_fwlog); 1670 1671 debugfs_create_file("fwlog_mask", S_IRUSR | S_IWUSR, ar->debugfs_phy, 1672 ar, &fops_fwlog_mask); 1673 1674 debugfs_create_file("reg_addr", S_IRUSR | S_IWUSR, ar->debugfs_phy, ar, 1675 &fops_diag_reg_read); 1676 1677 debugfs_create_file("reg_dump", S_IRUSR, ar->debugfs_phy, ar, 1678 &fops_reg_dump); 1679 1680 debugfs_create_file("lrssi_roam_threshold", S_IRUSR | S_IWUSR, 1681 ar->debugfs_phy, ar, &fops_lrssi_roam_threshold); 1682 1683 debugfs_create_file("reg_write", S_IRUSR | S_IWUSR, 1684 ar->debugfs_phy, ar, &fops_diag_reg_write); 1685 1686 debugfs_create_file("war_stats", S_IRUSR, ar->debugfs_phy, ar, 1687 &fops_war_stats); 1688 1689 debugfs_create_file("roam_table", S_IRUSR, ar->debugfs_phy, ar, 1690 &fops_roam_table); 1691 1692 debugfs_create_file("force_roam", S_IWUSR, ar->debugfs_phy, ar, 1693 &fops_force_roam); 1694 1695 debugfs_create_file("roam_mode", S_IWUSR, ar->debugfs_phy, ar, 1696 &fops_roam_mode); 1697 1698 debugfs_create_file("keepalive", S_IRUSR | S_IWUSR, ar->debugfs_phy, ar, 1699 &fops_keepalive); 1700 1701 debugfs_create_file("disconnect_timeout", S_IRUSR | S_IWUSR, 1702 ar->debugfs_phy, ar, &fops_disconnect_timeout); 1703 1704 debugfs_create_file("create_qos", S_IWUSR, ar->debugfs_phy, ar, 1705 &fops_create_qos); 1706 1707 debugfs_create_file("delete_qos", S_IWUSR, ar->debugfs_phy, ar, 1708 &fops_delete_qos); 1709 1710 debugfs_create_file("bgscan_interval", S_IWUSR, 1711 ar->debugfs_phy, ar, &fops_bgscan_int); 1712 1713 debugfs_create_file("power_params", S_IWUSR, ar->debugfs_phy, ar, 1714 &fops_power_params); 1715 1716 return 0; 1717 } 1718 1719 void ath6kl_debug_cleanup(struct ath6kl *ar) 1720 { 1721 vfree(ar->debug.fwlog_buf.buf); 1722 kfree(ar->debug.fwlog_tmp); 1723 kfree(ar->debug.roam_tbl); 1724 } 1725 1726 #endif 1727