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1/*2 * Copyright (c) 2007-2008 Bruno Randolf <bruno@thinktube.com>3 *4 * This file is free software: you may copy, redistribute and/or modify it5 * under the terms of the GNU General Public License as published by the6 * Free Software Foundation, either version 2 of the License, or (at your7 * option) any later version.8 *9 * This file is distributed in the hope that it will be useful, but10 * WITHOUT ANY WARRANTY; without even the implied warranty of11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU12 * General Public License for more details.13 *14 * You should have received a copy of the GNU General Public License15 * along with this program. If not, see <http://www.gnu.org/licenses/>.16 *17 *18 * This file incorporates work covered by the following copyright and19 * permission notice:20 *21 * Copyright (c) 2002-2005 Sam Leffler, Errno Consulting22 * Copyright (c) 2004-2005 Atheros Communications, Inc.23 * Copyright (c) 2006 Devicescape Software, Inc.24 * Copyright (c) 2007 Jiri Slaby <jirislaby@gmail.com>25 * Copyright (c) 2007 Luis R. Rodriguez <mcgrof@winlab.rutgers.edu>26 *27 * All rights reserved.28 *29 * Redistribution and use in source and binary forms, with or without30 * modification, are permitted provided that the following conditions31 * are met:32 * 1. Redistributions of source code must retain the above copyright33 * notice, this list of conditions and the following disclaimer,34 * without modification.35 * 2. Redistributions in binary form must reproduce at minimum a disclaimer36 * similar to the "NO WARRANTY" disclaimer below ("Disclaimer") and any37 * redistribution must be conditioned upon including a substantially38 * similar Disclaimer requirement for further binary redistribution.39 * 3. Neither the names of the above-listed copyright holders nor the names40 * of any contributors may be used to endorse or promote products derived41 * from this software without specific prior written permission.42 *43 * Alternatively, this software may be distributed under the terms of the44 * GNU General Public License ("GPL") version 2 as published by the Free45 * Software Foundation.46 *47 * NO WARRANTY48 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS49 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT50 * LIMITED TO, THE IMPLIED WARRANTIES OF NONINFRINGEMENT, MERCHANTIBILITY51 * AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL52 * THE COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY,53 * OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF54 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS55 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER56 * IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)57 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF58 * THE POSSIBILITY OF SUCH DAMAGES.59 */60 61#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt62 63#include <linux/export.h>64#include <linux/moduleparam.h>65#include <linux/vmalloc.h>66 67#include <linux/seq_file.h>68#include <linux/list.h>69#include "debug.h"70#include "ath5k.h"71#include "reg.h"72#include "base.h"73 74static unsigned int ath5k_debug;75module_param_named(debug, ath5k_debug, uint, 0);76 77 78/* debugfs: registers */79 80struct reg {81 const char *name;82 int addr;83};84 85#define REG_STRUCT_INIT(r) { #r, r }86 87/* just a few random registers, might want to add more */88static const struct reg regs[] = {89 REG_STRUCT_INIT(AR5K_CR),90 REG_STRUCT_INIT(AR5K_RXDP),91 REG_STRUCT_INIT(AR5K_CFG),92 REG_STRUCT_INIT(AR5K_IER),93 REG_STRUCT_INIT(AR5K_BCR),94 REG_STRUCT_INIT(AR5K_RTSD0),95 REG_STRUCT_INIT(AR5K_RTSD1),96 REG_STRUCT_INIT(AR5K_TXCFG),97 REG_STRUCT_INIT(AR5K_RXCFG),98 REG_STRUCT_INIT(AR5K_RXJLA),99 REG_STRUCT_INIT(AR5K_MIBC),100 REG_STRUCT_INIT(AR5K_TOPS),101 REG_STRUCT_INIT(AR5K_RXNOFRM),102 REG_STRUCT_INIT(AR5K_TXNOFRM),103 REG_STRUCT_INIT(AR5K_RPGTO),104 REG_STRUCT_INIT(AR5K_RFCNT),105 REG_STRUCT_INIT(AR5K_MISC),106 REG_STRUCT_INIT(AR5K_QCUDCU_CLKGT),107 REG_STRUCT_INIT(AR5K_ISR),108 REG_STRUCT_INIT(AR5K_PISR),109 REG_STRUCT_INIT(AR5K_SISR0),110 REG_STRUCT_INIT(AR5K_SISR1),111 REG_STRUCT_INIT(AR5K_SISR2),112 REG_STRUCT_INIT(AR5K_SISR3),113 REG_STRUCT_INIT(AR5K_SISR4),114 REG_STRUCT_INIT(AR5K_IMR),115 REG_STRUCT_INIT(AR5K_PIMR),116 REG_STRUCT_INIT(AR5K_SIMR0),117 REG_STRUCT_INIT(AR5K_SIMR1),118 REG_STRUCT_INIT(AR5K_SIMR2),119 REG_STRUCT_INIT(AR5K_SIMR3),120 REG_STRUCT_INIT(AR5K_SIMR4),121 REG_STRUCT_INIT(AR5K_DCM_ADDR),122 REG_STRUCT_INIT(AR5K_DCCFG),123 REG_STRUCT_INIT(AR5K_CCFG),124 REG_STRUCT_INIT(AR5K_CPC0),125 REG_STRUCT_INIT(AR5K_CPC1),126 REG_STRUCT_INIT(AR5K_CPC2),127 REG_STRUCT_INIT(AR5K_CPC3),128 REG_STRUCT_INIT(AR5K_CPCOVF),129 REG_STRUCT_INIT(AR5K_RESET_CTL),130 REG_STRUCT_INIT(AR5K_SLEEP_CTL),131 REG_STRUCT_INIT(AR5K_INTPEND),132 REG_STRUCT_INIT(AR5K_SFR),133 REG_STRUCT_INIT(AR5K_PCICFG),134 REG_STRUCT_INIT(AR5K_GPIOCR),135 REG_STRUCT_INIT(AR5K_GPIODO),136 REG_STRUCT_INIT(AR5K_SREV),137};138 139static void *reg_start(struct seq_file *seq, loff_t *pos)140{141 return *pos < ARRAY_SIZE(regs) ? (void *)®s[*pos] : NULL;142}143 144static void reg_stop(struct seq_file *seq, void *p)145{146 /* nothing to do */147}148 149static void *reg_next(struct seq_file *seq, void *p, loff_t *pos)150{151 ++*pos;152 return *pos < ARRAY_SIZE(regs) ? (void *)®s[*pos] : NULL;153}154 155static int reg_show(struct seq_file *seq, void *p)156{157 struct ath5k_hw *ah = seq->private;158 struct reg *r = p;159 seq_printf(seq, "%-25s0x%08x\n", r->name,160 ath5k_hw_reg_read(ah, r->addr));161 return 0;162}163 164static const struct seq_operations registers_sops = {165 .start = reg_start,166 .next = reg_next,167 .stop = reg_stop,168 .show = reg_show169};170 171DEFINE_SEQ_ATTRIBUTE(registers);172 173/* debugfs: beacons */174 175static ssize_t read_file_beacon(struct file *file, char __user *user_buf,176 size_t count, loff_t *ppos)177{178 struct ath5k_hw *ah = file->private_data;179 char buf[500];180 unsigned int len = 0;181 unsigned int v;182 u64 tsf;183 184 v = ath5k_hw_reg_read(ah, AR5K_BEACON);185 len += scnprintf(buf + len, sizeof(buf) - len,186 "%-24s0x%08x\tintval: %d\tTIM: 0x%x\n",187 "AR5K_BEACON", v, v & AR5K_BEACON_PERIOD,188 (v & AR5K_BEACON_TIM) >> AR5K_BEACON_TIM_S);189 190 len += scnprintf(buf + len, sizeof(buf) - len, "%-24s0x%08x\n",191 "AR5K_LAST_TSTP", ath5k_hw_reg_read(ah, AR5K_LAST_TSTP));192 193 len += scnprintf(buf + len, sizeof(buf) - len, "%-24s0x%08x\n\n",194 "AR5K_BEACON_CNT", ath5k_hw_reg_read(ah, AR5K_BEACON_CNT));195 196 v = ath5k_hw_reg_read(ah, AR5K_TIMER0);197 len += scnprintf(buf + len, sizeof(buf) - len, "%-24s0x%08x\tTU: %08x\n",198 "AR5K_TIMER0 (TBTT)", v, v);199 200 v = ath5k_hw_reg_read(ah, AR5K_TIMER1);201 len += scnprintf(buf + len, sizeof(buf) - len, "%-24s0x%08x\tTU: %08x\n",202 "AR5K_TIMER1 (DMA)", v, v >> 3);203 204 v = ath5k_hw_reg_read(ah, AR5K_TIMER2);205 len += scnprintf(buf + len, sizeof(buf) - len, "%-24s0x%08x\tTU: %08x\n",206 "AR5K_TIMER2 (SWBA)", v, v >> 3);207 208 v = ath5k_hw_reg_read(ah, AR5K_TIMER3);209 len += scnprintf(buf + len, sizeof(buf) - len, "%-24s0x%08x\tTU: %08x\n",210 "AR5K_TIMER3 (ATIM)", v, v);211 212 tsf = ath5k_hw_get_tsf64(ah);213 len += scnprintf(buf + len, sizeof(buf) - len,214 "TSF\t\t0x%016llx\tTU: %08x\n",215 (unsigned long long)tsf, TSF_TO_TU(tsf));216 217 if (len > sizeof(buf))218 len = sizeof(buf);219 220 return simple_read_from_buffer(user_buf, count, ppos, buf, len);221}222 223static ssize_t write_file_beacon(struct file *file,224 const char __user *userbuf,225 size_t count, loff_t *ppos)226{227 struct ath5k_hw *ah = file->private_data;228 char buf[20];229 230 count = min_t(size_t, count, sizeof(buf) - 1);231 if (copy_from_user(buf, userbuf, count))232 return -EFAULT;233 234 buf[count] = '\0';235 if (strncmp(buf, "disable", 7) == 0) {236 AR5K_REG_DISABLE_BITS(ah, AR5K_BEACON, AR5K_BEACON_ENABLE);237 pr_info("debugfs disable beacons\n");238 } else if (strncmp(buf, "enable", 6) == 0) {239 AR5K_REG_ENABLE_BITS(ah, AR5K_BEACON, AR5K_BEACON_ENABLE);240 pr_info("debugfs enable beacons\n");241 }242 return count;243}244 245static const struct file_operations fops_beacon = {246 .read = read_file_beacon,247 .write = write_file_beacon,248 .open = simple_open,249 .owner = THIS_MODULE,250 .llseek = default_llseek,251};252 253 254/* debugfs: reset */255 256static ssize_t write_file_reset(struct file *file,257 const char __user *userbuf,258 size_t count, loff_t *ppos)259{260 struct ath5k_hw *ah = file->private_data;261 ATH5K_DBG(ah, ATH5K_DEBUG_RESET, "debug file triggered reset\n");262 ieee80211_queue_work(ah->hw, &ah->reset_work);263 return count;264}265 266static const struct file_operations fops_reset = {267 .write = write_file_reset,268 .open = simple_open,269 .owner = THIS_MODULE,270 .llseek = noop_llseek,271};272 273 274/* debugfs: debug level */275 276static const struct {277 enum ath5k_debug_level level;278 const char *name;279 const char *desc;280} dbg_info[] = {281 { ATH5K_DEBUG_RESET, "reset", "reset and initialization" },282 { ATH5K_DEBUG_INTR, "intr", "interrupt handling" },283 { ATH5K_DEBUG_MODE, "mode", "mode init/setup" },284 { ATH5K_DEBUG_XMIT, "xmit", "basic xmit operation" },285 { ATH5K_DEBUG_BEACON, "beacon", "beacon handling" },286 { ATH5K_DEBUG_CALIBRATE, "calib", "periodic calibration" },287 { ATH5K_DEBUG_TXPOWER, "txpower", "transmit power setting" },288 { ATH5K_DEBUG_LED, "led", "LED management" },289 { ATH5K_DEBUG_DUMPBANDS, "dumpbands", "dump bands" },290 { ATH5K_DEBUG_DMA, "dma", "dma start/stop" },291 { ATH5K_DEBUG_ANI, "ani", "adaptive noise immunity" },292 { ATH5K_DEBUG_DESC, "desc", "descriptor chains" },293 { ATH5K_DEBUG_ANY, "all", "show all debug levels" },294};295 296static ssize_t read_file_debug(struct file *file, char __user *user_buf,297 size_t count, loff_t *ppos)298{299 struct ath5k_hw *ah = file->private_data;300 char buf[700];301 unsigned int len = 0;302 unsigned int i;303 304 len += scnprintf(buf + len, sizeof(buf) - len,305 "DEBUG LEVEL: 0x%08x\n\n", ah->debug.level);306 307 for (i = 0; i < ARRAY_SIZE(dbg_info) - 1; i++) {308 len += scnprintf(buf + len, sizeof(buf) - len,309 "%10s %c 0x%08x - %s\n", dbg_info[i].name,310 ah->debug.level & dbg_info[i].level ? '+' : ' ',311 dbg_info[i].level, dbg_info[i].desc);312 }313 len += scnprintf(buf + len, sizeof(buf) - len,314 "%10s %c 0x%08x - %s\n", dbg_info[i].name,315 ah->debug.level == dbg_info[i].level ? '+' : ' ',316 dbg_info[i].level, dbg_info[i].desc);317 318 if (len > sizeof(buf))319 len = sizeof(buf);320 321 return simple_read_from_buffer(user_buf, count, ppos, buf, len);322}323 324static ssize_t write_file_debug(struct file *file,325 const char __user *userbuf,326 size_t count, loff_t *ppos)327{328 struct ath5k_hw *ah = file->private_data;329 unsigned int i;330 char buf[20];331 332 count = min_t(size_t, count, sizeof(buf) - 1);333 if (copy_from_user(buf, userbuf, count))334 return -EFAULT;335 336 buf[count] = '\0';337 for (i = 0; i < ARRAY_SIZE(dbg_info); i++) {338 if (strncmp(buf, dbg_info[i].name,339 strlen(dbg_info[i].name)) == 0) {340 ah->debug.level ^= dbg_info[i].level; /* toggle bit */341 break;342 }343 }344 return count;345}346 347static const struct file_operations fops_debug = {348 .read = read_file_debug,349 .write = write_file_debug,350 .open = simple_open,351 .owner = THIS_MODULE,352 .llseek = default_llseek,353};354 355 356/* debugfs: antenna */357 358static ssize_t read_file_antenna(struct file *file, char __user *user_buf,359 size_t count, loff_t *ppos)360{361 struct ath5k_hw *ah = file->private_data;362 char buf[700];363 unsigned int len = 0;364 unsigned int i;365 unsigned int v;366 367 len += scnprintf(buf + len, sizeof(buf) - len, "antenna mode\t%d\n",368 ah->ah_ant_mode);369 len += scnprintf(buf + len, sizeof(buf) - len, "default antenna\t%d\n",370 ah->ah_def_ant);371 len += scnprintf(buf + len, sizeof(buf) - len, "tx antenna\t%d\n",372 ah->ah_tx_ant);373 374 len += scnprintf(buf + len, sizeof(buf) - len, "\nANTENNA\t\tRX\tTX\n");375 for (i = 1; i < ARRAY_SIZE(ah->stats.antenna_rx); i++) {376 len += scnprintf(buf + len, sizeof(buf) - len,377 "[antenna %d]\t%d\t%d\n",378 i, ah->stats.antenna_rx[i], ah->stats.antenna_tx[i]);379 }380 len += scnprintf(buf + len, sizeof(buf) - len, "[invalid]\t%d\t%d\n",381 ah->stats.antenna_rx[0], ah->stats.antenna_tx[0]);382 383 v = ath5k_hw_reg_read(ah, AR5K_DEFAULT_ANTENNA);384 len += scnprintf(buf + len, sizeof(buf) - len,385 "\nAR5K_DEFAULT_ANTENNA\t0x%08x\n", v);386 387 v = ath5k_hw_reg_read(ah, AR5K_STA_ID1);388 len += scnprintf(buf + len, sizeof(buf) - len,389 "AR5K_STA_ID1_DEFAULT_ANTENNA\t%d\n",390 (v & AR5K_STA_ID1_DEFAULT_ANTENNA) != 0);391 len += scnprintf(buf + len, sizeof(buf) - len,392 "AR5K_STA_ID1_DESC_ANTENNA\t%d\n",393 (v & AR5K_STA_ID1_DESC_ANTENNA) != 0);394 len += scnprintf(buf + len, sizeof(buf) - len,395 "AR5K_STA_ID1_RTS_DEF_ANTENNA\t%d\n",396 (v & AR5K_STA_ID1_RTS_DEF_ANTENNA) != 0);397 len += scnprintf(buf + len, sizeof(buf) - len,398 "AR5K_STA_ID1_SELFGEN_DEF_ANT\t%d\n",399 (v & AR5K_STA_ID1_SELFGEN_DEF_ANT) != 0);400 401 v = ath5k_hw_reg_read(ah, AR5K_PHY_AGCCTL);402 len += scnprintf(buf + len, sizeof(buf) - len,403 "\nAR5K_PHY_AGCCTL_OFDM_DIV_DIS\t%d\n",404 (v & AR5K_PHY_AGCCTL_OFDM_DIV_DIS) != 0);405 406 v = ath5k_hw_reg_read(ah, AR5K_PHY_RESTART);407 len += scnprintf(buf + len, sizeof(buf) - len,408 "AR5K_PHY_RESTART_DIV_GC\t\t%x\n",409 (v & AR5K_PHY_RESTART_DIV_GC) >> AR5K_PHY_RESTART_DIV_GC_S);410 411 v = ath5k_hw_reg_read(ah, AR5K_PHY_FAST_ANT_DIV);412 len += scnprintf(buf + len, sizeof(buf) - len,413 "AR5K_PHY_FAST_ANT_DIV_EN\t%d\n",414 (v & AR5K_PHY_FAST_ANT_DIV_EN) != 0);415 416 v = ath5k_hw_reg_read(ah, AR5K_PHY_ANT_SWITCH_TABLE_0);417 len += scnprintf(buf + len, sizeof(buf) - len,418 "\nAR5K_PHY_ANT_SWITCH_TABLE_0\t0x%08x\n", v);419 v = ath5k_hw_reg_read(ah, AR5K_PHY_ANT_SWITCH_TABLE_1);420 len += scnprintf(buf + len, sizeof(buf) - len,421 "AR5K_PHY_ANT_SWITCH_TABLE_1\t0x%08x\n", v);422 423 if (len > sizeof(buf))424 len = sizeof(buf);425 426 return simple_read_from_buffer(user_buf, count, ppos, buf, len);427}428 429static ssize_t write_file_antenna(struct file *file,430 const char __user *userbuf,431 size_t count, loff_t *ppos)432{433 struct ath5k_hw *ah = file->private_data;434 unsigned int i;435 char buf[20];436 437 count = min_t(size_t, count, sizeof(buf) - 1);438 if (copy_from_user(buf, userbuf, count))439 return -EFAULT;440 441 buf[count] = '\0';442 if (strncmp(buf, "diversity", 9) == 0) {443 ath5k_hw_set_antenna_mode(ah, AR5K_ANTMODE_DEFAULT);444 pr_info("debug: enable diversity\n");445 } else if (strncmp(buf, "fixed-a", 7) == 0) {446 ath5k_hw_set_antenna_mode(ah, AR5K_ANTMODE_FIXED_A);447 pr_info("debug: fixed antenna A\n");448 } else if (strncmp(buf, "fixed-b", 7) == 0) {449 ath5k_hw_set_antenna_mode(ah, AR5K_ANTMODE_FIXED_B);450 pr_info("debug: fixed antenna B\n");451 } else if (strncmp(buf, "clear", 5) == 0) {452 for (i = 0; i < ARRAY_SIZE(ah->stats.antenna_rx); i++) {453 ah->stats.antenna_rx[i] = 0;454 ah->stats.antenna_tx[i] = 0;455 }456 pr_info("debug: cleared antenna stats\n");457 }458 return count;459}460 461static const struct file_operations fops_antenna = {462 .read = read_file_antenna,463 .write = write_file_antenna,464 .open = simple_open,465 .owner = THIS_MODULE,466 .llseek = default_llseek,467};468 469/* debugfs: misc */470 471static ssize_t read_file_misc(struct file *file, char __user *user_buf,472 size_t count, loff_t *ppos)473{474 struct ath5k_hw *ah = file->private_data;475 char buf[700];476 unsigned int len = 0;477 u32 filt = ath5k_hw_get_rx_filter(ah);478 479 len += scnprintf(buf + len, sizeof(buf) - len, "bssid-mask: %pM\n",480 ah->bssidmask);481 len += scnprintf(buf + len, sizeof(buf) - len, "filter-flags: 0x%x ",482 filt);483 if (filt & AR5K_RX_FILTER_UCAST)484 len += scnprintf(buf + len, sizeof(buf) - len, " UCAST");485 if (filt & AR5K_RX_FILTER_MCAST)486 len += scnprintf(buf + len, sizeof(buf) - len, " MCAST");487 if (filt & AR5K_RX_FILTER_BCAST)488 len += scnprintf(buf + len, sizeof(buf) - len, " BCAST");489 if (filt & AR5K_RX_FILTER_CONTROL)490 len += scnprintf(buf + len, sizeof(buf) - len, " CONTROL");491 if (filt & AR5K_RX_FILTER_BEACON)492 len += scnprintf(buf + len, sizeof(buf) - len, " BEACON");493 if (filt & AR5K_RX_FILTER_PROM)494 len += scnprintf(buf + len, sizeof(buf) - len, " PROM");495 if (filt & AR5K_RX_FILTER_XRPOLL)496 len += scnprintf(buf + len, sizeof(buf) - len, " XRPOLL");497 if (filt & AR5K_RX_FILTER_PROBEREQ)498 len += scnprintf(buf + len, sizeof(buf) - len, " PROBEREQ");499 if (filt & AR5K_RX_FILTER_PHYERR_5212)500 len += scnprintf(buf + len, sizeof(buf) - len, " PHYERR-5212");501 if (filt & AR5K_RX_FILTER_RADARERR_5212)502 len += scnprintf(buf + len, sizeof(buf) - len, " RADARERR-5212");503 if (filt & AR5K_RX_FILTER_PHYERR_5211)504 snprintf(buf + len, sizeof(buf) - len, " PHYERR-5211");505 if (filt & AR5K_RX_FILTER_RADARERR_5211)506 len += scnprintf(buf + len, sizeof(buf) - len, " RADARERR-5211");507 508 len += scnprintf(buf + len, sizeof(buf) - len, "\nopmode: %s (%d)\n",509 ath_opmode_to_string(ah->opmode), ah->opmode);510 511 if (len > sizeof(buf))512 len = sizeof(buf);513 514 return simple_read_from_buffer(user_buf, count, ppos, buf, len);515}516 517static const struct file_operations fops_misc = {518 .read = read_file_misc,519 .open = simple_open,520 .owner = THIS_MODULE,521};522 523 524/* debugfs: frameerrors */525 526static ssize_t read_file_frameerrors(struct file *file, char __user *user_buf,527 size_t count, loff_t *ppos)528{529 struct ath5k_hw *ah = file->private_data;530 struct ath5k_statistics *st = &ah->stats;531 char buf[700];532 unsigned int len = 0;533 int i;534 535 len += scnprintf(buf + len, sizeof(buf) - len,536 "RX\n---------------------\n");537 len += scnprintf(buf + len, sizeof(buf) - len, "CRC\t%u\t(%u%%)\n",538 st->rxerr_crc,539 st->rx_all_count > 0 ?540 st->rxerr_crc * 100 / st->rx_all_count : 0);541 len += scnprintf(buf + len, sizeof(buf) - len, "PHY\t%u\t(%u%%)\n",542 st->rxerr_phy,543 st->rx_all_count > 0 ?544 st->rxerr_phy * 100 / st->rx_all_count : 0);545 for (i = 0; i < 32; i++) {546 if (st->rxerr_phy_code[i])547 len += scnprintf(buf + len, sizeof(buf) - len,548 " phy_err[%u]\t%u\n",549 i, st->rxerr_phy_code[i]);550 }551 552 len += scnprintf(buf + len, sizeof(buf) - len, "FIFO\t%u\t(%u%%)\n",553 st->rxerr_fifo,554 st->rx_all_count > 0 ?555 st->rxerr_fifo * 100 / st->rx_all_count : 0);556 len += scnprintf(buf + len, sizeof(buf) - len, "decrypt\t%u\t(%u%%)\n",557 st->rxerr_decrypt,558 st->rx_all_count > 0 ?559 st->rxerr_decrypt * 100 / st->rx_all_count : 0);560 len += scnprintf(buf + len, sizeof(buf) - len, "MIC\t%u\t(%u%%)\n",561 st->rxerr_mic,562 st->rx_all_count > 0 ?563 st->rxerr_mic * 100 / st->rx_all_count : 0);564 len += scnprintf(buf + len, sizeof(buf) - len, "process\t%u\t(%u%%)\n",565 st->rxerr_proc,566 st->rx_all_count > 0 ?567 st->rxerr_proc * 100 / st->rx_all_count : 0);568 len += scnprintf(buf + len, sizeof(buf) - len, "jumbo\t%u\t(%u%%)\n",569 st->rxerr_jumbo,570 st->rx_all_count > 0 ?571 st->rxerr_jumbo * 100 / st->rx_all_count : 0);572 len += scnprintf(buf + len, sizeof(buf) - len, "[RX all\t%u]\n",573 st->rx_all_count);574 len += scnprintf(buf + len, sizeof(buf) - len, "RX-all-bytes\t%u\n",575 st->rx_bytes_count);576 577 len += scnprintf(buf + len, sizeof(buf) - len,578 "\nTX\n---------------------\n");579 len += scnprintf(buf + len, sizeof(buf) - len, "retry\t%u\t(%u%%)\n",580 st->txerr_retry,581 st->tx_all_count > 0 ?582 st->txerr_retry * 100 / st->tx_all_count : 0);583 len += scnprintf(buf + len, sizeof(buf) - len, "FIFO\t%u\t(%u%%)\n",584 st->txerr_fifo,585 st->tx_all_count > 0 ?586 st->txerr_fifo * 100 / st->tx_all_count : 0);587 len += scnprintf(buf + len, sizeof(buf) - len, "filter\t%u\t(%u%%)\n",588 st->txerr_filt,589 st->tx_all_count > 0 ?590 st->txerr_filt * 100 / st->tx_all_count : 0);591 len += scnprintf(buf + len, sizeof(buf) - len, "[TX all\t%u]\n",592 st->tx_all_count);593 len += scnprintf(buf + len, sizeof(buf) - len, "TX-all-bytes\t%u\n",594 st->tx_bytes_count);595 596 if (len > sizeof(buf))597 len = sizeof(buf);598 599 return simple_read_from_buffer(user_buf, count, ppos, buf, len);600}601 602static ssize_t write_file_frameerrors(struct file *file,603 const char __user *userbuf,604 size_t count, loff_t *ppos)605{606 struct ath5k_hw *ah = file->private_data;607 struct ath5k_statistics *st = &ah->stats;608 char buf[20];609 610 count = min_t(size_t, count, sizeof(buf) - 1);611 if (copy_from_user(buf, userbuf, count))612 return -EFAULT;613 614 buf[count] = '\0';615 if (strncmp(buf, "clear", 5) == 0) {616 st->rxerr_crc = 0;617 st->rxerr_phy = 0;618 st->rxerr_fifo = 0;619 st->rxerr_decrypt = 0;620 st->rxerr_mic = 0;621 st->rxerr_proc = 0;622 st->rxerr_jumbo = 0;623 st->rx_all_count = 0;624 st->txerr_retry = 0;625 st->txerr_fifo = 0;626 st->txerr_filt = 0;627 st->tx_all_count = 0;628 pr_info("debug: cleared frameerrors stats\n");629 }630 return count;631}632 633static const struct file_operations fops_frameerrors = {634 .read = read_file_frameerrors,635 .write = write_file_frameerrors,636 .open = simple_open,637 .owner = THIS_MODULE,638 .llseek = default_llseek,639};640 641 642/* debugfs: ani */643 644static ssize_t read_file_ani(struct file *file, char __user *user_buf,645 size_t count, loff_t *ppos)646{647 struct ath5k_hw *ah = file->private_data;648 struct ath5k_statistics *st = &ah->stats;649 struct ath5k_ani_state *as = &ah->ani_state;650 651 char buf[700];652 unsigned int len = 0;653 654 len += scnprintf(buf + len, sizeof(buf) - len,655 "HW has PHY error counters:\t%s\n",656 ah->ah_capabilities.cap_has_phyerr_counters ?657 "yes" : "no");658 len += scnprintf(buf + len, sizeof(buf) - len,659 "HW max spur immunity level:\t%d\n",660 as->max_spur_level);661 len += scnprintf(buf + len, sizeof(buf) - len,662 "\nANI state\n--------------------------------------------\n");663 len += scnprintf(buf + len, sizeof(buf) - len, "operating mode:\t\t\t");664 switch (as->ani_mode) {665 case ATH5K_ANI_MODE_OFF:666 len += scnprintf(buf + len, sizeof(buf) - len, "OFF\n");667 break;668 case ATH5K_ANI_MODE_MANUAL_LOW:669 len += scnprintf(buf + len, sizeof(buf) - len,670 "MANUAL LOW\n");671 break;672 case ATH5K_ANI_MODE_MANUAL_HIGH:673 len += scnprintf(buf + len, sizeof(buf) - len,674 "MANUAL HIGH\n");675 break;676 case ATH5K_ANI_MODE_AUTO:677 len += scnprintf(buf + len, sizeof(buf) - len, "AUTO\n");678 break;679 default:680 len += scnprintf(buf + len, sizeof(buf) - len,681 "??? (not good)\n");682 break;683 }684 len += scnprintf(buf + len, sizeof(buf) - len,685 "noise immunity level:\t\t%d\n",686 as->noise_imm_level);687 len += scnprintf(buf + len, sizeof(buf) - len,688 "spur immunity level:\t\t%d\n",689 as->spur_level);690 len += scnprintf(buf + len, sizeof(buf) - len,691 "firstep level:\t\t\t%d\n",692 as->firstep_level);693 len += scnprintf(buf + len, sizeof(buf) - len,694 "OFDM weak signal detection:\t%s\n",695 as->ofdm_weak_sig ? "on" : "off");696 len += scnprintf(buf + len, sizeof(buf) - len,697 "CCK weak signal detection:\t%s\n",698 as->cck_weak_sig ? "on" : "off");699 700 len += scnprintf(buf + len, sizeof(buf) - len,701 "\nMIB INTERRUPTS:\t\t%u\n",702 st->mib_intr);703 len += scnprintf(buf + len, sizeof(buf) - len,704 "beacon RSSI average:\t%d\n",705 (int)ewma_beacon_rssi_read(&ah->ah_beacon_rssi_avg));706 707#define CC_PRINT(_struct, _field) \708 _struct._field, \709 _struct.cycles > 0 ? \710 _struct._field * 100 / _struct.cycles : 0711 712 len += scnprintf(buf + len, sizeof(buf) - len,713 "profcnt tx\t\t%u\t(%d%%)\n",714 CC_PRINT(as->last_cc, tx_frame));715 len += scnprintf(buf + len, sizeof(buf) - len,716 "profcnt rx\t\t%u\t(%d%%)\n",717 CC_PRINT(as->last_cc, rx_frame));718 len += scnprintf(buf + len, sizeof(buf) - len,719 "profcnt busy\t\t%u\t(%d%%)\n",720 CC_PRINT(as->last_cc, rx_busy));721#undef CC_PRINT722 len += scnprintf(buf + len, sizeof(buf) - len, "profcnt cycles\t\t%u\n",723 as->last_cc.cycles);724 len += scnprintf(buf + len, sizeof(buf) - len,725 "listen time\t\t%d\tlast: %d\n",726 as->listen_time, as->last_listen);727 len += scnprintf(buf + len, sizeof(buf) - len,728 "OFDM errors\t\t%u\tlast: %u\tsum: %u\n",729 as->ofdm_errors, as->last_ofdm_errors,730 as->sum_ofdm_errors);731 len += scnprintf(buf + len, sizeof(buf) - len,732 "CCK errors\t\t%u\tlast: %u\tsum: %u\n",733 as->cck_errors, as->last_cck_errors,734 as->sum_cck_errors);735 len += scnprintf(buf + len, sizeof(buf) - len,736 "AR5K_PHYERR_CNT1\t%x\t(=%d)\n",737 ath5k_hw_reg_read(ah, AR5K_PHYERR_CNT1),738 ATH5K_ANI_OFDM_TRIG_HIGH - (ATH5K_PHYERR_CNT_MAX -739 ath5k_hw_reg_read(ah, AR5K_PHYERR_CNT1)));740 len += scnprintf(buf + len, sizeof(buf) - len,741 "AR5K_PHYERR_CNT2\t%x\t(=%d)\n",742 ath5k_hw_reg_read(ah, AR5K_PHYERR_CNT2),743 ATH5K_ANI_CCK_TRIG_HIGH - (ATH5K_PHYERR_CNT_MAX -744 ath5k_hw_reg_read(ah, AR5K_PHYERR_CNT2)));745 746 if (len > sizeof(buf))747 len = sizeof(buf);748 749 return simple_read_from_buffer(user_buf, count, ppos, buf, len);750}751 752static ssize_t write_file_ani(struct file *file,753 const char __user *userbuf,754 size_t count, loff_t *ppos)755{756 struct ath5k_hw *ah = file->private_data;757 char buf[20];758 759 count = min_t(size_t, count, sizeof(buf) - 1);760 if (copy_from_user(buf, userbuf, count))761 return -EFAULT;762 763 buf[count] = '\0';764 if (strncmp(buf, "sens-low", 8) == 0) {765 ath5k_ani_init(ah, ATH5K_ANI_MODE_MANUAL_HIGH);766 } else if (strncmp(buf, "sens-high", 9) == 0) {767 ath5k_ani_init(ah, ATH5K_ANI_MODE_MANUAL_LOW);768 } else if (strncmp(buf, "ani-off", 7) == 0) {769 ath5k_ani_init(ah, ATH5K_ANI_MODE_OFF);770 } else if (strncmp(buf, "ani-on", 6) == 0) {771 ath5k_ani_init(ah, ATH5K_ANI_MODE_AUTO);772 } else if (strncmp(buf, "noise-low", 9) == 0) {773 ath5k_ani_set_noise_immunity_level(ah, 0);774 } else if (strncmp(buf, "noise-high", 10) == 0) {775 ath5k_ani_set_noise_immunity_level(ah,776 ATH5K_ANI_MAX_NOISE_IMM_LVL);777 } else if (strncmp(buf, "spur-low", 8) == 0) {778 ath5k_ani_set_spur_immunity_level(ah, 0);779 } else if (strncmp(buf, "spur-high", 9) == 0) {780 ath5k_ani_set_spur_immunity_level(ah,781 ah->ani_state.max_spur_level);782 } else if (strncmp(buf, "fir-low", 7) == 0) {783 ath5k_ani_set_firstep_level(ah, 0);784 } else if (strncmp(buf, "fir-high", 8) == 0) {785 ath5k_ani_set_firstep_level(ah, ATH5K_ANI_MAX_FIRSTEP_LVL);786 } else if (strncmp(buf, "ofdm-off", 8) == 0) {787 ath5k_ani_set_ofdm_weak_signal_detection(ah, false);788 } else if (strncmp(buf, "ofdm-on", 7) == 0) {789 ath5k_ani_set_ofdm_weak_signal_detection(ah, true);790 } else if (strncmp(buf, "cck-off", 7) == 0) {791 ath5k_ani_set_cck_weak_signal_detection(ah, false);792 } else if (strncmp(buf, "cck-on", 6) == 0) {793 ath5k_ani_set_cck_weak_signal_detection(ah, true);794 }795 return count;796}797 798static const struct file_operations fops_ani = {799 .read = read_file_ani,800 .write = write_file_ani,801 .open = simple_open,802 .owner = THIS_MODULE,803 .llseek = default_llseek,804};805 806 807/* debugfs: queues etc */808 809static ssize_t read_file_queue(struct file *file, char __user *user_buf,810 size_t count, loff_t *ppos)811{812 struct ath5k_hw *ah = file->private_data;813 char buf[700];814 unsigned int len = 0;815 816 struct ath5k_txq *txq;817 struct ath5k_buf *bf, *bf0;818 int i, n;819 820 len += scnprintf(buf + len, sizeof(buf) - len,821 "available txbuffers: %d\n", ah->txbuf_len);822 823 for (i = 0; i < ARRAY_SIZE(ah->txqs); i++) {824 txq = &ah->txqs[i];825 826 len += scnprintf(buf + len, sizeof(buf) - len,827 "%02d: %ssetup\n", i, txq->setup ? "" : "not ");828 829 if (!txq->setup)830 continue;831 832 n = 0;833 spin_lock_bh(&txq->lock);834 list_for_each_entry_safe(bf, bf0, &txq->q, list)835 n++;836 spin_unlock_bh(&txq->lock);837 838 len += scnprintf(buf + len, sizeof(buf) - len,839 " len: %d bufs: %d\n", txq->txq_len, n);840 len += scnprintf(buf + len, sizeof(buf) - len,841 " stuck: %d\n", txq->txq_stuck);842 }843 844 if (len > sizeof(buf))845 len = sizeof(buf);846 847 return simple_read_from_buffer(user_buf, count, ppos, buf, len);848}849 850static ssize_t write_file_queue(struct file *file,851 const char __user *userbuf,852 size_t count, loff_t *ppos)853{854 struct ath5k_hw *ah = file->private_data;855 char buf[20];856 857 count = min_t(size_t, count, sizeof(buf) - 1);858 if (copy_from_user(buf, userbuf, count))859 return -EFAULT;860 861 buf[count] = '\0';862 if (strncmp(buf, "start", 5) == 0)863 ieee80211_wake_queues(ah->hw);864 else if (strncmp(buf, "stop", 4) == 0)865 ieee80211_stop_queues(ah->hw);866 867 return count;868}869 870 871static const struct file_operations fops_queue = {872 .read = read_file_queue,873 .write = write_file_queue,874 .open = simple_open,875 .owner = THIS_MODULE,876 .llseek = default_llseek,877};878 879/* debugfs: eeprom */880 881struct eeprom_private {882 u16 *buf;883 int len;884};885 886static int open_file_eeprom(struct inode *inode, struct file *file)887{888 struct eeprom_private *ep;889 struct ath5k_hw *ah = inode->i_private;890 bool res;891 int i, ret;892 u32 eesize; /* NB: in 16-bit words */893 u16 val, *buf;894 895 /* Get eeprom size */896 897 res = ath5k_hw_nvram_read(ah, AR5K_EEPROM_SIZE_UPPER, &val);898 if (!res)899 return -EACCES;900 901 if (val == 0) {902 eesize = AR5K_EEPROM_INFO_MAX + AR5K_EEPROM_INFO_BASE;903 } else {904 eesize = (val & AR5K_EEPROM_SIZE_UPPER_MASK) <<905 AR5K_EEPROM_SIZE_ENDLOC_SHIFT;906 ath5k_hw_nvram_read(ah, AR5K_EEPROM_SIZE_LOWER, &val);907 eesize = eesize | val;908 }909 910 if (eesize > 4096)911 return -EINVAL;912 913 /* Create buffer and read in eeprom */914 915 buf = vmalloc(array_size(eesize, 2));916 if (!buf) {917 ret = -ENOMEM;918 goto err;919 }920 921 for (i = 0; i < eesize; ++i) {922 if (!ath5k_hw_nvram_read(ah, i, &val)) {923 ret = -EIO;924 goto freebuf;925 }926 buf[i] = val;927 }928 929 /* Create private struct and assign to file */930 931 ep = kmalloc(sizeof(*ep), GFP_KERNEL);932 if (!ep) {933 ret = -ENOMEM;934 goto freebuf;935 }936 937 ep->buf = buf;938 ep->len = eesize * 2;939 940 file->private_data = (void *)ep;941 942 return 0;943 944freebuf:945 vfree(buf);946err:947 return ret;948 949}950 951static ssize_t read_file_eeprom(struct file *file, char __user *user_buf,952 size_t count, loff_t *ppos)953{954 struct eeprom_private *ep = file->private_data;955 956 return simple_read_from_buffer(user_buf, count, ppos, ep->buf, ep->len);957}958 959static int release_file_eeprom(struct inode *inode, struct file *file)960{961 struct eeprom_private *ep = file->private_data;962 963 vfree(ep->buf);964 kfree(ep);965 966 return 0;967}968 969static const struct file_operations fops_eeprom = {970 .open = open_file_eeprom,971 .read = read_file_eeprom,972 .release = release_file_eeprom,973 .owner = THIS_MODULE,974};975 976 977void978ath5k_debug_init_device(struct ath5k_hw *ah)979{980 struct dentry *phydir;981 982 ah->debug.level = ath5k_debug;983 984 phydir = debugfs_create_dir("ath5k", ah->hw->wiphy->debugfsdir);985 986 debugfs_create_file("debug", 0600, phydir, ah, &fops_debug);987 debugfs_create_file("registers", 0400, phydir, ah, ®isters_fops);988 debugfs_create_file("beacon", 0600, phydir, ah, &fops_beacon);989 debugfs_create_file("reset", 0200, phydir, ah, &fops_reset);990 debugfs_create_file("antenna", 0600, phydir, ah, &fops_antenna);991 debugfs_create_file("misc", 0400, phydir, ah, &fops_misc);992 debugfs_create_file("eeprom", 0400, phydir, ah, &fops_eeprom);993 debugfs_create_file("frameerrors", 0600, phydir, ah, &fops_frameerrors);994 debugfs_create_file("ani", 0600, phydir, ah, &fops_ani);995 debugfs_create_file("queue", 0600, phydir, ah, &fops_queue);996 debugfs_create_bool("32khz_clock", 0600, phydir,997 &ah->ah_use_32khz_clock);998}999 1000/* functions used in other places */1001 1002void1003ath5k_debug_dump_bands(struct ath5k_hw *ah)1004{1005 unsigned int b, i;1006 1007 if (likely(!(ah->debug.level & ATH5K_DEBUG_DUMPBANDS)))1008 return;1009 1010 for (b = 0; b < NUM_NL80211_BANDS; b++) {1011 struct ieee80211_supported_band *band = &ah->sbands[b];1012 char bname[6];1013 switch (band->band) {1014 case NL80211_BAND_2GHZ:1015 strcpy(bname, "2 GHz");1016 break;1017 case NL80211_BAND_5GHZ:1018 strcpy(bname, "5 GHz");1019 break;1020 default:1021 printk(KERN_DEBUG "Band not supported: %d\n",1022 band->band);1023 return;1024 }1025 printk(KERN_DEBUG "Band %s: channels %d, rates %d\n", bname,1026 band->n_channels, band->n_bitrates);1027 printk(KERN_DEBUG " channels:\n");1028 for (i = 0; i < band->n_channels; i++)1029 printk(KERN_DEBUG " %3d %d %.4x %.4x\n",1030 ieee80211_frequency_to_channel(1031 band->channels[i].center_freq),1032 band->channels[i].center_freq,1033 band->channels[i].hw_value,1034 band->channels[i].flags);1035 printk(KERN_DEBUG " rates:\n");1036 for (i = 0; i < band->n_bitrates; i++)1037 printk(KERN_DEBUG " %4d %.4x %.4x %.4x\n",1038 band->bitrates[i].bitrate,1039 band->bitrates[i].hw_value,1040 band->bitrates[i].flags,1041 band->bitrates[i].hw_value_short);1042 }1043}1044 1045static inline void1046ath5k_debug_printrxbuf(struct ath5k_buf *bf, int done,1047 struct ath5k_rx_status *rs)1048{1049 struct ath5k_desc *ds = bf->desc;1050 struct ath5k_hw_all_rx_desc *rd = &ds->ud.ds_rx;1051 1052 printk(KERN_DEBUG "R (%p %llx) %08x %08x %08x %08x %08x %08x %c\n",1053 ds, (unsigned long long)bf->daddr,1054 ds->ds_link, ds->ds_data,1055 rd->rx_ctl.rx_control_0, rd->rx_ctl.rx_control_1,1056 rd->rx_stat.rx_status_0, rd->rx_stat.rx_status_1,1057 !done ? ' ' : (rs->rs_status == 0) ? '*' : '!');1058}1059 1060void1061ath5k_debug_printrxbuffs(struct ath5k_hw *ah)1062{1063 struct ath5k_desc *ds;1064 struct ath5k_buf *bf;1065 struct ath5k_rx_status rs = {};1066 int status;1067 1068 if (likely(!(ah->debug.level & ATH5K_DEBUG_DESC)))1069 return;1070 1071 printk(KERN_DEBUG "rxdp %x, rxlink %p\n",1072 ath5k_hw_get_rxdp(ah), ah->rxlink);1073 1074 spin_lock_bh(&ah->rxbuflock);1075 list_for_each_entry(bf, &ah->rxbuf, list) {1076 ds = bf->desc;1077 status = ah->ah_proc_rx_desc(ah, ds, &rs);1078 if (!status)1079 ath5k_debug_printrxbuf(bf, status == 0, &rs);1080 }1081 spin_unlock_bh(&ah->rxbuflock);1082}1083 1084void1085ath5k_debug_printtxbuf(struct ath5k_hw *ah, struct ath5k_buf *bf)1086{1087 struct ath5k_desc *ds = bf->desc;1088 struct ath5k_hw_5212_tx_desc *td = &ds->ud.ds_tx5212;1089 struct ath5k_tx_status ts = {};1090 int done;1091 1092 if (likely(!(ah->debug.level & ATH5K_DEBUG_DESC)))1093 return;1094 1095 done = ah->ah_proc_tx_desc(ah, bf->desc, &ts);1096 1097 printk(KERN_DEBUG "T (%p %llx) %08x %08x %08x %08x %08x %08x %08x "1098 "%08x %c\n", ds, (unsigned long long)bf->daddr, ds->ds_link,1099 ds->ds_data, td->tx_ctl.tx_control_0, td->tx_ctl.tx_control_1,1100 td->tx_ctl.tx_control_2, td->tx_ctl.tx_control_3,1101 td->tx_stat.tx_status_0, td->tx_stat.tx_status_1,1102 done ? ' ' : (ts.ts_status == 0) ? '*' : '!');1103}1104