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 it 5 * under the terms of the GNU General Public License as published by the 6 * Free Software Foundation, either version 2 of the License, or (at your 7 * option) any later version. 8 * 9 * This file is distributed in the hope that it will be useful, but 10 * WITHOUT ANY WARRANTY; without even the implied warranty of 11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 12 * General Public License for more details. 13 * 14 * You should have received a copy of the GNU General Public License 15 * along with this program. If not, see <http://www.gnu.org/licenses/>. 16 * 17 * 18 * This file incorporates work covered by the following copyright and 19 * permission notice: 20 * 21 * Copyright (c) 2002-2005 Sam Leffler, Errno Consulting 22 * 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 without 30 * modification, are permitted provided that the following conditions 31 * are met: 32 * 1. Redistributions of source code must retain the above copyright 33 * notice, this list of conditions and the following disclaimer, 34 * without modification. 35 * 2. Redistributions in binary form must reproduce at minimum a disclaimer 36 * similar to the "NO WARRANTY" disclaimer below ("Disclaimer") and any 37 * redistribution must be conditioned upon including a substantially 38 * similar Disclaimer requirement for further binary redistribution. 39 * 3. Neither the names of the above-listed copyright holders nor the names 40 * of any contributors may be used to endorse or promote products derived 41 * from this software without specific prior written permission. 42 * 43 * Alternatively, this software may be distributed under the terms of the 44 * GNU General Public License ("GPL") version 2 as published by the Free 45 * Software Foundation. 46 * 47 * NO WARRANTY 48 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 49 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 50 * LIMITED TO, THE IMPLIED WARRANTIES OF NONINFRINGEMENT, MERCHANTIBILITY 51 * AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL 52 * THE COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, 53 * OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 54 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 55 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER 56 * 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 OF 58 * THE POSSIBILITY OF SUCH DAMAGES. 59 */ 60 61 #include "base.h" 62 #include "debug.h" 63 64 static unsigned int ath5k_debug; 65 module_param_named(debug, ath5k_debug, uint, 0); 66 67 68 #ifdef CONFIG_ATH5K_DEBUG 69 70 #include <linux/seq_file.h> 71 #include "reg.h" 72 #include "ani.h" 73 74 static int ath5k_debugfs_open(struct inode *inode, struct file *file) 75 { 76 file->private_data = inode->i_private; 77 return 0; 78 } 79 80 81 /* debugfs: registers */ 82 83 struct reg { 84 const char *name; 85 int addr; 86 }; 87 88 #define REG_STRUCT_INIT(r) { #r, r } 89 90 /* just a few random registers, might want to add more */ 91 static const struct reg regs[] = { 92 REG_STRUCT_INIT(AR5K_CR), 93 REG_STRUCT_INIT(AR5K_RXDP), 94 REG_STRUCT_INIT(AR5K_CFG), 95 REG_STRUCT_INIT(AR5K_IER), 96 REG_STRUCT_INIT(AR5K_BCR), 97 REG_STRUCT_INIT(AR5K_RTSD0), 98 REG_STRUCT_INIT(AR5K_RTSD1), 99 REG_STRUCT_INIT(AR5K_TXCFG), 100 REG_STRUCT_INIT(AR5K_RXCFG), 101 REG_STRUCT_INIT(AR5K_RXJLA), 102 REG_STRUCT_INIT(AR5K_MIBC), 103 REG_STRUCT_INIT(AR5K_TOPS), 104 REG_STRUCT_INIT(AR5K_RXNOFRM), 105 REG_STRUCT_INIT(AR5K_TXNOFRM), 106 REG_STRUCT_INIT(AR5K_RPGTO), 107 REG_STRUCT_INIT(AR5K_RFCNT), 108 REG_STRUCT_INIT(AR5K_MISC), 109 REG_STRUCT_INIT(AR5K_QCUDCU_CLKGT), 110 REG_STRUCT_INIT(AR5K_ISR), 111 REG_STRUCT_INIT(AR5K_PISR), 112 REG_STRUCT_INIT(AR5K_SISR0), 113 REG_STRUCT_INIT(AR5K_SISR1), 114 REG_STRUCT_INIT(AR5K_SISR2), 115 REG_STRUCT_INIT(AR5K_SISR3), 116 REG_STRUCT_INIT(AR5K_SISR4), 117 REG_STRUCT_INIT(AR5K_IMR), 118 REG_STRUCT_INIT(AR5K_PIMR), 119 REG_STRUCT_INIT(AR5K_SIMR0), 120 REG_STRUCT_INIT(AR5K_SIMR1), 121 REG_STRUCT_INIT(AR5K_SIMR2), 122 REG_STRUCT_INIT(AR5K_SIMR3), 123 REG_STRUCT_INIT(AR5K_SIMR4), 124 REG_STRUCT_INIT(AR5K_DCM_ADDR), 125 REG_STRUCT_INIT(AR5K_DCCFG), 126 REG_STRUCT_INIT(AR5K_CCFG), 127 REG_STRUCT_INIT(AR5K_CPC0), 128 REG_STRUCT_INIT(AR5K_CPC1), 129 REG_STRUCT_INIT(AR5K_CPC2), 130 REG_STRUCT_INIT(AR5K_CPC3), 131 REG_STRUCT_INIT(AR5K_CPCOVF), 132 REG_STRUCT_INIT(AR5K_RESET_CTL), 133 REG_STRUCT_INIT(AR5K_SLEEP_CTL), 134 REG_STRUCT_INIT(AR5K_INTPEND), 135 REG_STRUCT_INIT(AR5K_SFR), 136 REG_STRUCT_INIT(AR5K_PCICFG), 137 REG_STRUCT_INIT(AR5K_GPIOCR), 138 REG_STRUCT_INIT(AR5K_GPIODO), 139 REG_STRUCT_INIT(AR5K_SREV), 140 }; 141 142 static void *reg_start(struct seq_file *seq, loff_t *pos) 143 { 144 return *pos < ARRAY_SIZE(regs) ? (void *)®s[*pos] : NULL; 145 } 146 147 static void reg_stop(struct seq_file *seq, void *p) 148 { 149 /* nothing to do */ 150 } 151 152 static void *reg_next(struct seq_file *seq, void *p, loff_t *pos) 153 { 154 ++*pos; 155 return *pos < ARRAY_SIZE(regs) ? (void *)®s[*pos] : NULL; 156 } 157 158 static int reg_show(struct seq_file *seq, void *p) 159 { 160 struct ath5k_softc *sc = seq->private; 161 struct reg *r = p; 162 seq_printf(seq, "%-25s0x%08x\n", r->name, 163 ath5k_hw_reg_read(sc->ah, r->addr)); 164 return 0; 165 } 166 167 static const struct seq_operations register_seq_ops = { 168 .start = reg_start, 169 .next = reg_next, 170 .stop = reg_stop, 171 .show = reg_show 172 }; 173 174 static int open_file_registers(struct inode *inode, struct file *file) 175 { 176 struct seq_file *s; 177 int res; 178 res = seq_open(file, ®ister_seq_ops); 179 if (res == 0) { 180 s = file->private_data; 181 s->private = inode->i_private; 182 } 183 return res; 184 } 185 186 static const struct file_operations fops_registers = { 187 .open = open_file_registers, 188 .read = seq_read, 189 .llseek = seq_lseek, 190 .release = seq_release, 191 .owner = THIS_MODULE, 192 }; 193 194 195 /* debugfs: beacons */ 196 197 static ssize_t read_file_beacon(struct file *file, char __user *user_buf, 198 size_t count, loff_t *ppos) 199 { 200 struct ath5k_softc *sc = file->private_data; 201 struct ath5k_hw *ah = sc->ah; 202 char buf[500]; 203 unsigned int len = 0; 204 unsigned int v; 205 u64 tsf; 206 207 v = ath5k_hw_reg_read(sc->ah, AR5K_BEACON); 208 len += snprintf(buf+len, sizeof(buf)-len, 209 "%-24s0x%08x\tintval: %d\tTIM: 0x%x\n", 210 "AR5K_BEACON", v, v & AR5K_BEACON_PERIOD, 211 (v & AR5K_BEACON_TIM) >> AR5K_BEACON_TIM_S); 212 213 len += snprintf(buf+len, sizeof(buf)-len, "%-24s0x%08x\n", 214 "AR5K_LAST_TSTP", ath5k_hw_reg_read(sc->ah, AR5K_LAST_TSTP)); 215 216 len += snprintf(buf+len, sizeof(buf)-len, "%-24s0x%08x\n\n", 217 "AR5K_BEACON_CNT", ath5k_hw_reg_read(sc->ah, AR5K_BEACON_CNT)); 218 219 v = ath5k_hw_reg_read(sc->ah, AR5K_TIMER0); 220 len += snprintf(buf+len, sizeof(buf)-len, "%-24s0x%08x\tTU: %08x\n", 221 "AR5K_TIMER0 (TBTT)", v, v); 222 223 v = ath5k_hw_reg_read(sc->ah, AR5K_TIMER1); 224 len += snprintf(buf+len, sizeof(buf)-len, "%-24s0x%08x\tTU: %08x\n", 225 "AR5K_TIMER1 (DMA)", v, v >> 3); 226 227 v = ath5k_hw_reg_read(sc->ah, AR5K_TIMER2); 228 len += snprintf(buf+len, sizeof(buf)-len, "%-24s0x%08x\tTU: %08x\n", 229 "AR5K_TIMER2 (SWBA)", v, v >> 3); 230 231 v = ath5k_hw_reg_read(sc->ah, AR5K_TIMER3); 232 len += snprintf(buf+len, sizeof(buf)-len, "%-24s0x%08x\tTU: %08x\n", 233 "AR5K_TIMER3 (ATIM)", v, v); 234 235 tsf = ath5k_hw_get_tsf64(sc->ah); 236 len += snprintf(buf+len, sizeof(buf)-len, 237 "TSF\t\t0x%016llx\tTU: %08x\n", 238 (unsigned long long)tsf, TSF_TO_TU(tsf)); 239 240 if (len > sizeof(buf)) 241 len = sizeof(buf); 242 243 return simple_read_from_buffer(user_buf, count, ppos, buf, len); 244 } 245 246 static ssize_t write_file_beacon(struct file *file, 247 const char __user *userbuf, 248 size_t count, loff_t *ppos) 249 { 250 struct ath5k_softc *sc = file->private_data; 251 struct ath5k_hw *ah = sc->ah; 252 char buf[20]; 253 254 if (copy_from_user(buf, userbuf, min(count, sizeof(buf)))) 255 return -EFAULT; 256 257 if (strncmp(buf, "disable", 7) == 0) { 258 AR5K_REG_DISABLE_BITS(ah, AR5K_BEACON, AR5K_BEACON_ENABLE); 259 printk(KERN_INFO "debugfs disable beacons\n"); 260 } else if (strncmp(buf, "enable", 6) == 0) { 261 AR5K_REG_ENABLE_BITS(ah, AR5K_BEACON, AR5K_BEACON_ENABLE); 262 printk(KERN_INFO "debugfs enable beacons\n"); 263 } 264 return count; 265 } 266 267 static const struct file_operations fops_beacon = { 268 .read = read_file_beacon, 269 .write = write_file_beacon, 270 .open = ath5k_debugfs_open, 271 .owner = THIS_MODULE, 272 .llseek = default_llseek, 273 }; 274 275 276 /* debugfs: reset */ 277 278 static ssize_t write_file_reset(struct file *file, 279 const char __user *userbuf, 280 size_t count, loff_t *ppos) 281 { 282 struct ath5k_softc *sc = file->private_data; 283 ATH5K_DBG(sc, ATH5K_DEBUG_RESET, "debug file triggered reset\n"); 284 ieee80211_queue_work(sc->hw, &sc->reset_work); 285 return count; 286 } 287 288 static const struct file_operations fops_reset = { 289 .write = write_file_reset, 290 .open = ath5k_debugfs_open, 291 .owner = THIS_MODULE, 292 .llseek = noop_llseek, 293 }; 294 295 296 /* debugfs: debug level */ 297 298 static const struct { 299 enum ath5k_debug_level level; 300 const char *name; 301 const char *desc; 302 } dbg_info[] = { 303 { ATH5K_DEBUG_RESET, "reset", "reset and initialization" }, 304 { ATH5K_DEBUG_INTR, "intr", "interrupt handling" }, 305 { ATH5K_DEBUG_MODE, "mode", "mode init/setup" }, 306 { ATH5K_DEBUG_XMIT, "xmit", "basic xmit operation" }, 307 { ATH5K_DEBUG_BEACON, "beacon", "beacon handling" }, 308 { ATH5K_DEBUG_CALIBRATE, "calib", "periodic calibration" }, 309 { ATH5K_DEBUG_TXPOWER, "txpower", "transmit power setting" }, 310 { ATH5K_DEBUG_LED, "led", "LED management" }, 311 { ATH5K_DEBUG_DUMPBANDS, "dumpbands", "dump bands" }, 312 { ATH5K_DEBUG_DMA, "dma", "dma start/stop" }, 313 { ATH5K_DEBUG_ANI, "ani", "adaptive noise immunity" }, 314 { ATH5K_DEBUG_DESC, "desc", "descriptor chains" }, 315 { ATH5K_DEBUG_ANY, "all", "show all debug levels" }, 316 }; 317 318 static ssize_t read_file_debug(struct file *file, char __user *user_buf, 319 size_t count, loff_t *ppos) 320 { 321 struct ath5k_softc *sc = file->private_data; 322 char buf[700]; 323 unsigned int len = 0; 324 unsigned int i; 325 326 len += snprintf(buf+len, sizeof(buf)-len, 327 "DEBUG LEVEL: 0x%08x\n\n", sc->debug.level); 328 329 for (i = 0; i < ARRAY_SIZE(dbg_info) - 1; i++) { 330 len += snprintf(buf+len, sizeof(buf)-len, 331 "%10s %c 0x%08x - %s\n", dbg_info[i].name, 332 sc->debug.level & dbg_info[i].level ? '+' : ' ', 333 dbg_info[i].level, dbg_info[i].desc); 334 } 335 len += snprintf(buf+len, sizeof(buf)-len, 336 "%10s %c 0x%08x - %s\n", dbg_info[i].name, 337 sc->debug.level == dbg_info[i].level ? '+' : ' ', 338 dbg_info[i].level, dbg_info[i].desc); 339 340 if (len > sizeof(buf)) 341 len = sizeof(buf); 342 343 return simple_read_from_buffer(user_buf, count, ppos, buf, len); 344 } 345 346 static ssize_t write_file_debug(struct file *file, 347 const char __user *userbuf, 348 size_t count, loff_t *ppos) 349 { 350 struct ath5k_softc *sc = file->private_data; 351 unsigned int i; 352 char buf[20]; 353 354 if (copy_from_user(buf, userbuf, min(count, sizeof(buf)))) 355 return -EFAULT; 356 357 for (i = 0; i < ARRAY_SIZE(dbg_info); i++) { 358 if (strncmp(buf, dbg_info[i].name, 359 strlen(dbg_info[i].name)) == 0) { 360 sc->debug.level ^= dbg_info[i].level; /* toggle bit */ 361 break; 362 } 363 } 364 return count; 365 } 366 367 static const struct file_operations fops_debug = { 368 .read = read_file_debug, 369 .write = write_file_debug, 370 .open = ath5k_debugfs_open, 371 .owner = THIS_MODULE, 372 .llseek = default_llseek, 373 }; 374 375 376 /* debugfs: antenna */ 377 378 static ssize_t read_file_antenna(struct file *file, char __user *user_buf, 379 size_t count, loff_t *ppos) 380 { 381 struct ath5k_softc *sc = file->private_data; 382 char buf[700]; 383 unsigned int len = 0; 384 unsigned int i; 385 unsigned int v; 386 387 len += snprintf(buf+len, sizeof(buf)-len, "antenna mode\t%d\n", 388 sc->ah->ah_ant_mode); 389 len += snprintf(buf+len, sizeof(buf)-len, "default antenna\t%d\n", 390 sc->ah->ah_def_ant); 391 len += snprintf(buf+len, sizeof(buf)-len, "tx antenna\t%d\n", 392 sc->ah->ah_tx_ant); 393 394 len += snprintf(buf+len, sizeof(buf)-len, "\nANTENNA\t\tRX\tTX\n"); 395 for (i = 1; i < ARRAY_SIZE(sc->stats.antenna_rx); i++) { 396 len += snprintf(buf+len, sizeof(buf)-len, 397 "[antenna %d]\t%d\t%d\n", 398 i, sc->stats.antenna_rx[i], sc->stats.antenna_tx[i]); 399 } 400 len += snprintf(buf+len, sizeof(buf)-len, "[invalid]\t%d\t%d\n", 401 sc->stats.antenna_rx[0], sc->stats.antenna_tx[0]); 402 403 v = ath5k_hw_reg_read(sc->ah, AR5K_DEFAULT_ANTENNA); 404 len += snprintf(buf+len, sizeof(buf)-len, 405 "\nAR5K_DEFAULT_ANTENNA\t0x%08x\n", v); 406 407 v = ath5k_hw_reg_read(sc->ah, AR5K_STA_ID1); 408 len += snprintf(buf+len, sizeof(buf)-len, 409 "AR5K_STA_ID1_DEFAULT_ANTENNA\t%d\n", 410 (v & AR5K_STA_ID1_DEFAULT_ANTENNA) != 0); 411 len += snprintf(buf+len, sizeof(buf)-len, 412 "AR5K_STA_ID1_DESC_ANTENNA\t%d\n", 413 (v & AR5K_STA_ID1_DESC_ANTENNA) != 0); 414 len += snprintf(buf+len, sizeof(buf)-len, 415 "AR5K_STA_ID1_RTS_DEF_ANTENNA\t%d\n", 416 (v & AR5K_STA_ID1_RTS_DEF_ANTENNA) != 0); 417 len += snprintf(buf+len, sizeof(buf)-len, 418 "AR5K_STA_ID1_SELFGEN_DEF_ANT\t%d\n", 419 (v & AR5K_STA_ID1_SELFGEN_DEF_ANT) != 0); 420 421 v = ath5k_hw_reg_read(sc->ah, AR5K_PHY_AGCCTL); 422 len += snprintf(buf+len, sizeof(buf)-len, 423 "\nAR5K_PHY_AGCCTL_OFDM_DIV_DIS\t%d\n", 424 (v & AR5K_PHY_AGCCTL_OFDM_DIV_DIS) != 0); 425 426 v = ath5k_hw_reg_read(sc->ah, AR5K_PHY_RESTART); 427 len += snprintf(buf+len, sizeof(buf)-len, 428 "AR5K_PHY_RESTART_DIV_GC\t\t%x\n", 429 (v & AR5K_PHY_RESTART_DIV_GC) >> AR5K_PHY_RESTART_DIV_GC_S); 430 431 v = ath5k_hw_reg_read(sc->ah, AR5K_PHY_FAST_ANT_DIV); 432 len += snprintf(buf+len, sizeof(buf)-len, 433 "AR5K_PHY_FAST_ANT_DIV_EN\t%d\n", 434 (v & AR5K_PHY_FAST_ANT_DIV_EN) != 0); 435 436 v = ath5k_hw_reg_read(sc->ah, AR5K_PHY_ANT_SWITCH_TABLE_0); 437 len += snprintf(buf+len, sizeof(buf)-len, 438 "\nAR5K_PHY_ANT_SWITCH_TABLE_0\t0x%08x\n", v); 439 v = ath5k_hw_reg_read(sc->ah, AR5K_PHY_ANT_SWITCH_TABLE_1); 440 len += snprintf(buf+len, sizeof(buf)-len, 441 "AR5K_PHY_ANT_SWITCH_TABLE_1\t0x%08x\n", v); 442 443 if (len > sizeof(buf)) 444 len = sizeof(buf); 445 446 return simple_read_from_buffer(user_buf, count, ppos, buf, len); 447 } 448 449 static ssize_t write_file_antenna(struct file *file, 450 const char __user *userbuf, 451 size_t count, loff_t *ppos) 452 { 453 struct ath5k_softc *sc = file->private_data; 454 unsigned int i; 455 char buf[20]; 456 457 if (copy_from_user(buf, userbuf, min(count, sizeof(buf)))) 458 return -EFAULT; 459 460 if (strncmp(buf, "diversity", 9) == 0) { 461 ath5k_hw_set_antenna_mode(sc->ah, AR5K_ANTMODE_DEFAULT); 462 printk(KERN_INFO "ath5k debug: enable diversity\n"); 463 } else if (strncmp(buf, "fixed-a", 7) == 0) { 464 ath5k_hw_set_antenna_mode(sc->ah, AR5K_ANTMODE_FIXED_A); 465 printk(KERN_INFO "ath5k debugfs: fixed antenna A\n"); 466 } else if (strncmp(buf, "fixed-b", 7) == 0) { 467 ath5k_hw_set_antenna_mode(sc->ah, AR5K_ANTMODE_FIXED_B); 468 printk(KERN_INFO "ath5k debug: fixed antenna B\n"); 469 } else if (strncmp(buf, "clear", 5) == 0) { 470 for (i = 0; i < ARRAY_SIZE(sc->stats.antenna_rx); i++) { 471 sc->stats.antenna_rx[i] = 0; 472 sc->stats.antenna_tx[i] = 0; 473 } 474 printk(KERN_INFO "ath5k debug: cleared antenna stats\n"); 475 } 476 return count; 477 } 478 479 static const struct file_operations fops_antenna = { 480 .read = read_file_antenna, 481 .write = write_file_antenna, 482 .open = ath5k_debugfs_open, 483 .owner = THIS_MODULE, 484 .llseek = default_llseek, 485 }; 486 487 /* debugfs: misc */ 488 489 static ssize_t read_file_misc(struct file *file, char __user *user_buf, 490 size_t count, loff_t *ppos) 491 { 492 struct ath5k_softc *sc = file->private_data; 493 char buf[700]; 494 unsigned int len = 0; 495 u32 filt = ath5k_hw_get_rx_filter(sc->ah); 496 497 len += snprintf(buf+len, sizeof(buf)-len, "bssid-mask: %pM\n", 498 sc->bssidmask); 499 len += snprintf(buf+len, sizeof(buf)-len, "filter-flags: 0x%x ", 500 filt); 501 if (filt & AR5K_RX_FILTER_UCAST) 502 len += snprintf(buf+len, sizeof(buf)-len, " UCAST"); 503 if (filt & AR5K_RX_FILTER_MCAST) 504 len += snprintf(buf+len, sizeof(buf)-len, " MCAST"); 505 if (filt & AR5K_RX_FILTER_BCAST) 506 len += snprintf(buf+len, sizeof(buf)-len, " BCAST"); 507 if (filt & AR5K_RX_FILTER_CONTROL) 508 len += snprintf(buf+len, sizeof(buf)-len, " CONTROL"); 509 if (filt & AR5K_RX_FILTER_BEACON) 510 len += snprintf(buf+len, sizeof(buf)-len, " BEACON"); 511 if (filt & AR5K_RX_FILTER_PROM) 512 len += snprintf(buf+len, sizeof(buf)-len, " PROM"); 513 if (filt & AR5K_RX_FILTER_XRPOLL) 514 len += snprintf(buf+len, sizeof(buf)-len, " XRPOLL"); 515 if (filt & AR5K_RX_FILTER_PROBEREQ) 516 len += snprintf(buf+len, sizeof(buf)-len, " PROBEREQ"); 517 if (filt & AR5K_RX_FILTER_PHYERR_5212) 518 len += snprintf(buf+len, sizeof(buf)-len, " PHYERR-5212"); 519 if (filt & AR5K_RX_FILTER_RADARERR_5212) 520 len += snprintf(buf+len, sizeof(buf)-len, " RADARERR-5212"); 521 if (filt & AR5K_RX_FILTER_PHYERR_5211) 522 snprintf(buf+len, sizeof(buf)-len, " PHYERR-5211"); 523 if (filt & AR5K_RX_FILTER_RADARERR_5211) 524 len += snprintf(buf+len, sizeof(buf)-len, " RADARERR-5211"); 525 526 len += snprintf(buf+len, sizeof(buf)-len, "\nopmode: %s (%d)\n", 527 ath_opmode_to_string(sc->opmode), sc->opmode); 528 529 if (len > sizeof(buf)) 530 len = sizeof(buf); 531 532 return simple_read_from_buffer(user_buf, count, ppos, buf, len); 533 } 534 535 static const struct file_operations fops_misc = { 536 .read = read_file_misc, 537 .open = ath5k_debugfs_open, 538 .owner = THIS_MODULE, 539 }; 540 541 542 /* debugfs: frameerrors */ 543 544 static ssize_t read_file_frameerrors(struct file *file, char __user *user_buf, 545 size_t count, loff_t *ppos) 546 { 547 struct ath5k_softc *sc = file->private_data; 548 struct ath5k_statistics *st = &sc->stats; 549 char buf[700]; 550 unsigned int len = 0; 551 int i; 552 553 len += snprintf(buf+len, sizeof(buf)-len, 554 "RX\n---------------------\n"); 555 len += snprintf(buf+len, sizeof(buf)-len, "CRC\t%u\t(%u%%)\n", 556 st->rxerr_crc, 557 st->rx_all_count > 0 ? 558 st->rxerr_crc*100/st->rx_all_count : 0); 559 len += snprintf(buf+len, sizeof(buf)-len, "PHY\t%u\t(%u%%)\n", 560 st->rxerr_phy, 561 st->rx_all_count > 0 ? 562 st->rxerr_phy*100/st->rx_all_count : 0); 563 for (i = 0; i < 32; i++) { 564 if (st->rxerr_phy_code[i]) 565 len += snprintf(buf+len, sizeof(buf)-len, 566 " phy_err[%u]\t%u\n", 567 i, st->rxerr_phy_code[i]); 568 } 569 570 len += snprintf(buf+len, sizeof(buf)-len, "FIFO\t%u\t(%u%%)\n", 571 st->rxerr_fifo, 572 st->rx_all_count > 0 ? 573 st->rxerr_fifo*100/st->rx_all_count : 0); 574 len += snprintf(buf+len, sizeof(buf)-len, "decrypt\t%u\t(%u%%)\n", 575 st->rxerr_decrypt, 576 st->rx_all_count > 0 ? 577 st->rxerr_decrypt*100/st->rx_all_count : 0); 578 len += snprintf(buf+len, sizeof(buf)-len, "MIC\t%u\t(%u%%)\n", 579 st->rxerr_mic, 580 st->rx_all_count > 0 ? 581 st->rxerr_mic*100/st->rx_all_count : 0); 582 len += snprintf(buf+len, sizeof(buf)-len, "process\t%u\t(%u%%)\n", 583 st->rxerr_proc, 584 st->rx_all_count > 0 ? 585 st->rxerr_proc*100/st->rx_all_count : 0); 586 len += snprintf(buf+len, sizeof(buf)-len, "jumbo\t%u\t(%u%%)\n", 587 st->rxerr_jumbo, 588 st->rx_all_count > 0 ? 589 st->rxerr_jumbo*100/st->rx_all_count : 0); 590 len += snprintf(buf+len, sizeof(buf)-len, "[RX all\t%u]\n", 591 st->rx_all_count); 592 len += snprintf(buf+len, sizeof(buf)-len, "RX-all-bytes\t%u\n", 593 st->rx_bytes_count); 594 595 len += snprintf(buf+len, sizeof(buf)-len, 596 "\nTX\n---------------------\n"); 597 len += snprintf(buf+len, sizeof(buf)-len, "retry\t%u\t(%u%%)\n", 598 st->txerr_retry, 599 st->tx_all_count > 0 ? 600 st->txerr_retry*100/st->tx_all_count : 0); 601 len += snprintf(buf+len, sizeof(buf)-len, "FIFO\t%u\t(%u%%)\n", 602 st->txerr_fifo, 603 st->tx_all_count > 0 ? 604 st->txerr_fifo*100/st->tx_all_count : 0); 605 len += snprintf(buf+len, sizeof(buf)-len, "filter\t%u\t(%u%%)\n", 606 st->txerr_filt, 607 st->tx_all_count > 0 ? 608 st->txerr_filt*100/st->tx_all_count : 0); 609 len += snprintf(buf+len, sizeof(buf)-len, "[TX all\t%u]\n", 610 st->tx_all_count); 611 len += snprintf(buf+len, sizeof(buf)-len, "TX-all-bytes\t%u\n", 612 st->tx_bytes_count); 613 614 if (len > sizeof(buf)) 615 len = sizeof(buf); 616 617 return simple_read_from_buffer(user_buf, count, ppos, buf, len); 618 } 619 620 static ssize_t write_file_frameerrors(struct file *file, 621 const char __user *userbuf, 622 size_t count, loff_t *ppos) 623 { 624 struct ath5k_softc *sc = file->private_data; 625 struct ath5k_statistics *st = &sc->stats; 626 char buf[20]; 627 628 if (copy_from_user(buf, userbuf, min(count, sizeof(buf)))) 629 return -EFAULT; 630 631 if (strncmp(buf, "clear", 5) == 0) { 632 st->rxerr_crc = 0; 633 st->rxerr_phy = 0; 634 st->rxerr_fifo = 0; 635 st->rxerr_decrypt = 0; 636 st->rxerr_mic = 0; 637 st->rxerr_proc = 0; 638 st->rxerr_jumbo = 0; 639 st->rx_all_count = 0; 640 st->txerr_retry = 0; 641 st->txerr_fifo = 0; 642 st->txerr_filt = 0; 643 st->tx_all_count = 0; 644 printk(KERN_INFO "ath5k debug: cleared frameerrors stats\n"); 645 } 646 return count; 647 } 648 649 static const struct file_operations fops_frameerrors = { 650 .read = read_file_frameerrors, 651 .write = write_file_frameerrors, 652 .open = ath5k_debugfs_open, 653 .owner = THIS_MODULE, 654 .llseek = default_llseek, 655 }; 656 657 658 /* debugfs: ani */ 659 660 static ssize_t read_file_ani(struct file *file, char __user *user_buf, 661 size_t count, loff_t *ppos) 662 { 663 struct ath5k_softc *sc = file->private_data; 664 struct ath5k_statistics *st = &sc->stats; 665 struct ath5k_ani_state *as = &sc->ani_state; 666 667 char buf[700]; 668 unsigned int len = 0; 669 670 len += snprintf(buf+len, sizeof(buf)-len, 671 "HW has PHY error counters:\t%s\n", 672 sc->ah->ah_capabilities.cap_has_phyerr_counters ? 673 "yes" : "no"); 674 len += snprintf(buf+len, sizeof(buf)-len, 675 "HW max spur immunity level:\t%d\n", 676 as->max_spur_level); 677 len += snprintf(buf+len, sizeof(buf)-len, 678 "\nANI state\n--------------------------------------------\n"); 679 len += snprintf(buf+len, sizeof(buf)-len, "operating mode:\t\t\t"); 680 switch (as->ani_mode) { 681 case ATH5K_ANI_MODE_OFF: 682 len += snprintf(buf+len, sizeof(buf)-len, "OFF\n"); 683 break; 684 case ATH5K_ANI_MODE_MANUAL_LOW: 685 len += snprintf(buf+len, sizeof(buf)-len, 686 "MANUAL LOW\n"); 687 break; 688 case ATH5K_ANI_MODE_MANUAL_HIGH: 689 len += snprintf(buf+len, sizeof(buf)-len, 690 "MANUAL HIGH\n"); 691 break; 692 case ATH5K_ANI_MODE_AUTO: 693 len += snprintf(buf+len, sizeof(buf)-len, "AUTO\n"); 694 break; 695 default: 696 len += snprintf(buf+len, sizeof(buf)-len, 697 "??? (not good)\n"); 698 break; 699 } 700 len += snprintf(buf+len, sizeof(buf)-len, 701 "noise immunity level:\t\t%d\n", 702 as->noise_imm_level); 703 len += snprintf(buf+len, sizeof(buf)-len, 704 "spur immunity level:\t\t%d\n", 705 as->spur_level); 706 len += snprintf(buf+len, sizeof(buf)-len, "firstep level:\t\t\t%d\n", 707 as->firstep_level); 708 len += snprintf(buf+len, sizeof(buf)-len, 709 "OFDM weak signal detection:\t%s\n", 710 as->ofdm_weak_sig ? "on" : "off"); 711 len += snprintf(buf+len, sizeof(buf)-len, 712 "CCK weak signal detection:\t%s\n", 713 as->cck_weak_sig ? "on" : "off"); 714 715 len += snprintf(buf+len, sizeof(buf)-len, 716 "\nMIB INTERRUPTS:\t\t%u\n", 717 st->mib_intr); 718 len += snprintf(buf+len, sizeof(buf)-len, 719 "beacon RSSI average:\t%d\n", 720 (int)ewma_read(&sc->ah->ah_beacon_rssi_avg)); 721 722 #define CC_PRINT(_struct, _field) \ 723 _struct._field, \ 724 _struct.cycles > 0 ? \ 725 _struct._field*100/_struct.cycles : 0 726 727 len += snprintf(buf+len, sizeof(buf)-len, "profcnt tx\t\t%u\t(%d%%)\n", 728 CC_PRINT(as->last_cc, tx_frame)); 729 len += snprintf(buf+len, sizeof(buf)-len, "profcnt rx\t\t%u\t(%d%%)\n", 730 CC_PRINT(as->last_cc, rx_frame)); 731 len += snprintf(buf+len, sizeof(buf)-len, "profcnt busy\t\t%u\t(%d%%)\n", 732 CC_PRINT(as->last_cc, rx_busy)); 733 #undef CC_PRINT 734 len += snprintf(buf+len, sizeof(buf)-len, "profcnt cycles\t\t%u\n", 735 as->last_cc.cycles); 736 len += snprintf(buf+len, sizeof(buf)-len, 737 "listen time\t\t%d\tlast: %d\n", 738 as->listen_time, as->last_listen); 739 len += snprintf(buf+len, sizeof(buf)-len, 740 "OFDM errors\t\t%u\tlast: %u\tsum: %u\n", 741 as->ofdm_errors, as->last_ofdm_errors, 742 as->sum_ofdm_errors); 743 len += snprintf(buf+len, sizeof(buf)-len, 744 "CCK errors\t\t%u\tlast: %u\tsum: %u\n", 745 as->cck_errors, as->last_cck_errors, 746 as->sum_cck_errors); 747 len += snprintf(buf+len, sizeof(buf)-len, 748 "AR5K_PHYERR_CNT1\t%x\t(=%d)\n", 749 ath5k_hw_reg_read(sc->ah, AR5K_PHYERR_CNT1), 750 ATH5K_ANI_OFDM_TRIG_HIGH - (ATH5K_PHYERR_CNT_MAX - 751 ath5k_hw_reg_read(sc->ah, AR5K_PHYERR_CNT1))); 752 len += snprintf(buf+len, sizeof(buf)-len, 753 "AR5K_PHYERR_CNT2\t%x\t(=%d)\n", 754 ath5k_hw_reg_read(sc->ah, AR5K_PHYERR_CNT2), 755 ATH5K_ANI_CCK_TRIG_HIGH - (ATH5K_PHYERR_CNT_MAX - 756 ath5k_hw_reg_read(sc->ah, AR5K_PHYERR_CNT2))); 757 758 if (len > sizeof(buf)) 759 len = sizeof(buf); 760 761 return simple_read_from_buffer(user_buf, count, ppos, buf, len); 762 } 763 764 static ssize_t write_file_ani(struct file *file, 765 const char __user *userbuf, 766 size_t count, loff_t *ppos) 767 { 768 struct ath5k_softc *sc = file->private_data; 769 char buf[20]; 770 771 if (copy_from_user(buf, userbuf, min(count, sizeof(buf)))) 772 return -EFAULT; 773 774 if (strncmp(buf, "sens-low", 8) == 0) { 775 ath5k_ani_init(sc->ah, ATH5K_ANI_MODE_MANUAL_HIGH); 776 } else if (strncmp(buf, "sens-high", 9) == 0) { 777 ath5k_ani_init(sc->ah, ATH5K_ANI_MODE_MANUAL_LOW); 778 } else if (strncmp(buf, "ani-off", 7) == 0) { 779 ath5k_ani_init(sc->ah, ATH5K_ANI_MODE_OFF); 780 } else if (strncmp(buf, "ani-on", 6) == 0) { 781 ath5k_ani_init(sc->ah, ATH5K_ANI_MODE_AUTO); 782 } else if (strncmp(buf, "noise-low", 9) == 0) { 783 ath5k_ani_set_noise_immunity_level(sc->ah, 0); 784 } else if (strncmp(buf, "noise-high", 10) == 0) { 785 ath5k_ani_set_noise_immunity_level(sc->ah, 786 ATH5K_ANI_MAX_NOISE_IMM_LVL); 787 } else if (strncmp(buf, "spur-low", 8) == 0) { 788 ath5k_ani_set_spur_immunity_level(sc->ah, 0); 789 } else if (strncmp(buf, "spur-high", 9) == 0) { 790 ath5k_ani_set_spur_immunity_level(sc->ah, 791 sc->ani_state.max_spur_level); 792 } else if (strncmp(buf, "fir-low", 7) == 0) { 793 ath5k_ani_set_firstep_level(sc->ah, 0); 794 } else if (strncmp(buf, "fir-high", 8) == 0) { 795 ath5k_ani_set_firstep_level(sc->ah, ATH5K_ANI_MAX_FIRSTEP_LVL); 796 } else if (strncmp(buf, "ofdm-off", 8) == 0) { 797 ath5k_ani_set_ofdm_weak_signal_detection(sc->ah, false); 798 } else if (strncmp(buf, "ofdm-on", 7) == 0) { 799 ath5k_ani_set_ofdm_weak_signal_detection(sc->ah, true); 800 } else if (strncmp(buf, "cck-off", 7) == 0) { 801 ath5k_ani_set_cck_weak_signal_detection(sc->ah, false); 802 } else if (strncmp(buf, "cck-on", 6) == 0) { 803 ath5k_ani_set_cck_weak_signal_detection(sc->ah, true); 804 } 805 return count; 806 } 807 808 static const struct file_operations fops_ani = { 809 .read = read_file_ani, 810 .write = write_file_ani, 811 .open = ath5k_debugfs_open, 812 .owner = THIS_MODULE, 813 .llseek = default_llseek, 814 }; 815 816 817 /* debugfs: queues etc */ 818 819 static ssize_t read_file_queue(struct file *file, char __user *user_buf, 820 size_t count, loff_t *ppos) 821 { 822 struct ath5k_softc *sc = file->private_data; 823 char buf[700]; 824 unsigned int len = 0; 825 826 struct ath5k_txq *txq; 827 struct ath5k_buf *bf, *bf0; 828 int i, n; 829 830 len += snprintf(buf+len, sizeof(buf)-len, 831 "available txbuffers: %d\n", sc->txbuf_len); 832 833 for (i = 0; i < ARRAY_SIZE(sc->txqs); i++) { 834 txq = &sc->txqs[i]; 835 836 len += snprintf(buf+len, sizeof(buf)-len, 837 "%02d: %ssetup\n", i, txq->setup ? "" : "not "); 838 839 if (!txq->setup) 840 continue; 841 842 n = 0; 843 spin_lock_bh(&txq->lock); 844 list_for_each_entry_safe(bf, bf0, &txq->q, list) 845 n++; 846 spin_unlock_bh(&txq->lock); 847 848 len += snprintf(buf+len, sizeof(buf)-len, 849 " len: %d bufs: %d\n", txq->txq_len, n); 850 len += snprintf(buf+len, sizeof(buf)-len, 851 " stuck: %d\n", txq->txq_stuck); 852 } 853 854 if (len > sizeof(buf)) 855 len = sizeof(buf); 856 857 return simple_read_from_buffer(user_buf, count, ppos, buf, len); 858 } 859 860 static ssize_t write_file_queue(struct file *file, 861 const char __user *userbuf, 862 size_t count, loff_t *ppos) 863 { 864 struct ath5k_softc *sc = file->private_data; 865 char buf[20]; 866 867 if (copy_from_user(buf, userbuf, min(count, sizeof(buf)))) 868 return -EFAULT; 869 870 if (strncmp(buf, "start", 5) == 0) 871 ieee80211_wake_queues(sc->hw); 872 else if (strncmp(buf, "stop", 4) == 0) 873 ieee80211_stop_queues(sc->hw); 874 875 return count; 876 } 877 878 879 static const struct file_operations fops_queue = { 880 .read = read_file_queue, 881 .write = write_file_queue, 882 .open = ath5k_debugfs_open, 883 .owner = THIS_MODULE, 884 .llseek = default_llseek, 885 }; 886 887 888 void 889 ath5k_debug_init_device(struct ath5k_softc *sc) 890 { 891 struct dentry *phydir; 892 893 sc->debug.level = ath5k_debug; 894 895 phydir = debugfs_create_dir("ath5k", sc->hw->wiphy->debugfsdir); 896 if (!phydir) 897 return; 898 899 debugfs_create_file("debug", S_IWUSR | S_IRUSR, phydir, sc, 900 &fops_debug); 901 902 debugfs_create_file("registers", S_IRUSR, phydir, sc, &fops_registers); 903 904 debugfs_create_file("beacon", S_IWUSR | S_IRUSR, phydir, sc, 905 &fops_beacon); 906 907 debugfs_create_file("reset", S_IWUSR, phydir, sc, &fops_reset); 908 909 debugfs_create_file("antenna", S_IWUSR | S_IRUSR, phydir, sc, 910 &fops_antenna); 911 912 debugfs_create_file("misc", S_IRUSR, phydir, sc, &fops_misc); 913 914 debugfs_create_file("frameerrors", S_IWUSR | S_IRUSR, phydir, sc, 915 &fops_frameerrors); 916 917 debugfs_create_file("ani", S_IWUSR | S_IRUSR, phydir, sc, &fops_ani); 918 919 debugfs_create_file("queue", S_IWUSR | S_IRUSR, phydir, sc, 920 &fops_queue); 921 } 922 923 /* functions used in other places */ 924 925 void 926 ath5k_debug_dump_bands(struct ath5k_softc *sc) 927 { 928 unsigned int b, i; 929 930 if (likely(!(sc->debug.level & ATH5K_DEBUG_DUMPBANDS))) 931 return; 932 933 BUG_ON(!sc->sbands); 934 935 for (b = 0; b < IEEE80211_NUM_BANDS; b++) { 936 struct ieee80211_supported_band *band = &sc->sbands[b]; 937 char bname[6]; 938 switch (band->band) { 939 case IEEE80211_BAND_2GHZ: 940 strcpy(bname, "2 GHz"); 941 break; 942 case IEEE80211_BAND_5GHZ: 943 strcpy(bname, "5 GHz"); 944 break; 945 default: 946 printk(KERN_DEBUG "Band not supported: %d\n", 947 band->band); 948 return; 949 } 950 printk(KERN_DEBUG "Band %s: channels %d, rates %d\n", bname, 951 band->n_channels, band->n_bitrates); 952 printk(KERN_DEBUG " channels:\n"); 953 for (i = 0; i < band->n_channels; i++) 954 printk(KERN_DEBUG " %3d %d %.4x %.4x\n", 955 ieee80211_frequency_to_channel( 956 band->channels[i].center_freq), 957 band->channels[i].center_freq, 958 band->channels[i].hw_value, 959 band->channels[i].flags); 960 printk(KERN_DEBUG " rates:\n"); 961 for (i = 0; i < band->n_bitrates; i++) 962 printk(KERN_DEBUG " %4d %.4x %.4x %.4x\n", 963 band->bitrates[i].bitrate, 964 band->bitrates[i].hw_value, 965 band->bitrates[i].flags, 966 band->bitrates[i].hw_value_short); 967 } 968 } 969 970 static inline void 971 ath5k_debug_printrxbuf(struct ath5k_buf *bf, int done, 972 struct ath5k_rx_status *rs) 973 { 974 struct ath5k_desc *ds = bf->desc; 975 struct ath5k_hw_all_rx_desc *rd = &ds->ud.ds_rx; 976 977 printk(KERN_DEBUG "R (%p %llx) %08x %08x %08x %08x %08x %08x %c\n", 978 ds, (unsigned long long)bf->daddr, 979 ds->ds_link, ds->ds_data, 980 rd->rx_ctl.rx_control_0, rd->rx_ctl.rx_control_1, 981 rd->rx_stat.rx_status_0, rd->rx_stat.rx_status_1, 982 !done ? ' ' : (rs->rs_status == 0) ? '*' : '!'); 983 } 984 985 void 986 ath5k_debug_printrxbuffs(struct ath5k_softc *sc, struct ath5k_hw *ah) 987 { 988 struct ath5k_desc *ds; 989 struct ath5k_buf *bf; 990 struct ath5k_rx_status rs = {}; 991 int status; 992 993 if (likely(!(sc->debug.level & ATH5K_DEBUG_DESC))) 994 return; 995 996 printk(KERN_DEBUG "rxdp %x, rxlink %p\n", 997 ath5k_hw_get_rxdp(ah), sc->rxlink); 998 999 spin_lock_bh(&sc->rxbuflock); 1000 list_for_each_entry(bf, &sc->rxbuf, list) { 1001 ds = bf->desc; 1002 status = ah->ah_proc_rx_desc(ah, ds, &rs); 1003 if (!status) 1004 ath5k_debug_printrxbuf(bf, status == 0, &rs); 1005 } 1006 spin_unlock_bh(&sc->rxbuflock); 1007 } 1008 1009 void 1010 ath5k_debug_printtxbuf(struct ath5k_softc *sc, struct ath5k_buf *bf) 1011 { 1012 struct ath5k_desc *ds = bf->desc; 1013 struct ath5k_hw_5212_tx_desc *td = &ds->ud.ds_tx5212; 1014 struct ath5k_tx_status ts = {}; 1015 int done; 1016 1017 if (likely(!(sc->debug.level & ATH5K_DEBUG_DESC))) 1018 return; 1019 1020 done = sc->ah->ah_proc_tx_desc(sc->ah, bf->desc, &ts); 1021 1022 printk(KERN_DEBUG "T (%p %llx) %08x %08x %08x %08x %08x %08x %08x " 1023 "%08x %c\n", ds, (unsigned long long)bf->daddr, ds->ds_link, 1024 ds->ds_data, td->tx_ctl.tx_control_0, td->tx_ctl.tx_control_1, 1025 td->tx_ctl.tx_control_2, td->tx_ctl.tx_control_3, 1026 td->tx_stat.tx_status_0, td->tx_stat.tx_status_1, 1027 done ? ' ' : (ts.ts_status == 0) ? '*' : '!'); 1028 } 1029 1030 #endif /* ifdef CONFIG_ATH5K_DEBUG */ 1031