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_hw *ah = seq->private; 161 struct reg *r = p; 162 seq_printf(seq, "%-25s0x%08x\n", r->name, 163 ath5k_hw_reg_read(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_hw *ah = file->private_data; 201 char buf[500]; 202 unsigned int len = 0; 203 unsigned int v; 204 u64 tsf; 205 206 v = ath5k_hw_reg_read(ah, AR5K_BEACON); 207 len += snprintf(buf + len, sizeof(buf) - len, 208 "%-24s0x%08x\tintval: %d\tTIM: 0x%x\n", 209 "AR5K_BEACON", v, v & AR5K_BEACON_PERIOD, 210 (v & AR5K_BEACON_TIM) >> AR5K_BEACON_TIM_S); 211 212 len += snprintf(buf + len, sizeof(buf) - len, "%-24s0x%08x\n", 213 "AR5K_LAST_TSTP", ath5k_hw_reg_read(ah, AR5K_LAST_TSTP)); 214 215 len += snprintf(buf + len, sizeof(buf) - len, "%-24s0x%08x\n\n", 216 "AR5K_BEACON_CNT", ath5k_hw_reg_read(ah, AR5K_BEACON_CNT)); 217 218 v = ath5k_hw_reg_read(ah, AR5K_TIMER0); 219 len += snprintf(buf + len, sizeof(buf) - len, "%-24s0x%08x\tTU: %08x\n", 220 "AR5K_TIMER0 (TBTT)", v, v); 221 222 v = ath5k_hw_reg_read(ah, AR5K_TIMER1); 223 len += snprintf(buf + len, sizeof(buf) - len, "%-24s0x%08x\tTU: %08x\n", 224 "AR5K_TIMER1 (DMA)", v, v >> 3); 225 226 v = ath5k_hw_reg_read(ah, AR5K_TIMER2); 227 len += snprintf(buf + len, sizeof(buf) - len, "%-24s0x%08x\tTU: %08x\n", 228 "AR5K_TIMER2 (SWBA)", v, v >> 3); 229 230 v = ath5k_hw_reg_read(ah, AR5K_TIMER3); 231 len += snprintf(buf + len, sizeof(buf) - len, "%-24s0x%08x\tTU: %08x\n", 232 "AR5K_TIMER3 (ATIM)", v, v); 233 234 tsf = ath5k_hw_get_tsf64(ah); 235 len += snprintf(buf + len, sizeof(buf) - len, 236 "TSF\t\t0x%016llx\tTU: %08x\n", 237 (unsigned long long)tsf, TSF_TO_TU(tsf)); 238 239 if (len > sizeof(buf)) 240 len = sizeof(buf); 241 242 return simple_read_from_buffer(user_buf, count, ppos, buf, len); 243 } 244 245 static ssize_t write_file_beacon(struct file *file, 246 const char __user *userbuf, 247 size_t count, loff_t *ppos) 248 { 249 struct ath5k_hw *ah = file->private_data; 250 char buf[20]; 251 252 if (copy_from_user(buf, userbuf, min(count, sizeof(buf)))) 253 return -EFAULT; 254 255 if (strncmp(buf, "disable", 7) == 0) { 256 AR5K_REG_DISABLE_BITS(ah, AR5K_BEACON, AR5K_BEACON_ENABLE); 257 printk(KERN_INFO "debugfs disable beacons\n"); 258 } else if (strncmp(buf, "enable", 6) == 0) { 259 AR5K_REG_ENABLE_BITS(ah, AR5K_BEACON, AR5K_BEACON_ENABLE); 260 printk(KERN_INFO "debugfs enable beacons\n"); 261 } 262 return count; 263 } 264 265 static const struct file_operations fops_beacon = { 266 .read = read_file_beacon, 267 .write = write_file_beacon, 268 .open = ath5k_debugfs_open, 269 .owner = THIS_MODULE, 270 .llseek = default_llseek, 271 }; 272 273 274 /* debugfs: reset */ 275 276 static ssize_t write_file_reset(struct file *file, 277 const char __user *userbuf, 278 size_t count, loff_t *ppos) 279 { 280 struct ath5k_hw *ah = file->private_data; 281 ATH5K_DBG(ah, ATH5K_DEBUG_RESET, "debug file triggered reset\n"); 282 ieee80211_queue_work(ah->hw, &ah->reset_work); 283 return count; 284 } 285 286 static const struct file_operations fops_reset = { 287 .write = write_file_reset, 288 .open = ath5k_debugfs_open, 289 .owner = THIS_MODULE, 290 .llseek = noop_llseek, 291 }; 292 293 294 /* debugfs: debug level */ 295 296 static const struct { 297 enum ath5k_debug_level level; 298 const char *name; 299 const char *desc; 300 } dbg_info[] = { 301 { ATH5K_DEBUG_RESET, "reset", "reset and initialization" }, 302 { ATH5K_DEBUG_INTR, "intr", "interrupt handling" }, 303 { ATH5K_DEBUG_MODE, "mode", "mode init/setup" }, 304 { ATH5K_DEBUG_XMIT, "xmit", "basic xmit operation" }, 305 { ATH5K_DEBUG_BEACON, "beacon", "beacon handling" }, 306 { ATH5K_DEBUG_CALIBRATE, "calib", "periodic calibration" }, 307 { ATH5K_DEBUG_TXPOWER, "txpower", "transmit power setting" }, 308 { ATH5K_DEBUG_LED, "led", "LED management" }, 309 { ATH5K_DEBUG_DUMPBANDS, "dumpbands", "dump bands" }, 310 { ATH5K_DEBUG_DMA, "dma", "dma start/stop" }, 311 { ATH5K_DEBUG_ANI, "ani", "adaptive noise immunity" }, 312 { ATH5K_DEBUG_DESC, "desc", "descriptor chains" }, 313 { ATH5K_DEBUG_ANY, "all", "show all debug levels" }, 314 }; 315 316 static ssize_t read_file_debug(struct file *file, char __user *user_buf, 317 size_t count, loff_t *ppos) 318 { 319 struct ath5k_hw *ah = file->private_data; 320 char buf[700]; 321 unsigned int len = 0; 322 unsigned int i; 323 324 len += snprintf(buf + len, sizeof(buf) - len, 325 "DEBUG LEVEL: 0x%08x\n\n", ah->debug.level); 326 327 for (i = 0; i < ARRAY_SIZE(dbg_info) - 1; i++) { 328 len += snprintf(buf + len, sizeof(buf) - len, 329 "%10s %c 0x%08x - %s\n", dbg_info[i].name, 330 ah->debug.level & dbg_info[i].level ? '+' : ' ', 331 dbg_info[i].level, dbg_info[i].desc); 332 } 333 len += snprintf(buf + len, sizeof(buf) - len, 334 "%10s %c 0x%08x - %s\n", dbg_info[i].name, 335 ah->debug.level == dbg_info[i].level ? '+' : ' ', 336 dbg_info[i].level, dbg_info[i].desc); 337 338 if (len > sizeof(buf)) 339 len = sizeof(buf); 340 341 return simple_read_from_buffer(user_buf, count, ppos, buf, len); 342 } 343 344 static ssize_t write_file_debug(struct file *file, 345 const char __user *userbuf, 346 size_t count, loff_t *ppos) 347 { 348 struct ath5k_hw *ah = file->private_data; 349 unsigned int i; 350 char buf[20]; 351 352 if (copy_from_user(buf, userbuf, min(count, sizeof(buf)))) 353 return -EFAULT; 354 355 for (i = 0; i < ARRAY_SIZE(dbg_info); i++) { 356 if (strncmp(buf, dbg_info[i].name, 357 strlen(dbg_info[i].name)) == 0) { 358 ah->debug.level ^= dbg_info[i].level; /* toggle bit */ 359 break; 360 } 361 } 362 return count; 363 } 364 365 static const struct file_operations fops_debug = { 366 .read = read_file_debug, 367 .write = write_file_debug, 368 .open = ath5k_debugfs_open, 369 .owner = THIS_MODULE, 370 .llseek = default_llseek, 371 }; 372 373 374 /* debugfs: antenna */ 375 376 static ssize_t read_file_antenna(struct file *file, char __user *user_buf, 377 size_t count, loff_t *ppos) 378 { 379 struct ath5k_hw *ah = file->private_data; 380 char buf[700]; 381 unsigned int len = 0; 382 unsigned int i; 383 unsigned int v; 384 385 len += snprintf(buf + len, sizeof(buf) - len, "antenna mode\t%d\n", 386 ah->ah_ant_mode); 387 len += snprintf(buf + len, sizeof(buf) - len, "default antenna\t%d\n", 388 ah->ah_def_ant); 389 len += snprintf(buf + len, sizeof(buf) - len, "tx antenna\t%d\n", 390 ah->ah_tx_ant); 391 392 len += snprintf(buf + len, sizeof(buf) - len, "\nANTENNA\t\tRX\tTX\n"); 393 for (i = 1; i < ARRAY_SIZE(ah->stats.antenna_rx); i++) { 394 len += snprintf(buf + len, sizeof(buf) - len, 395 "[antenna %d]\t%d\t%d\n", 396 i, ah->stats.antenna_rx[i], ah->stats.antenna_tx[i]); 397 } 398 len += snprintf(buf + len, sizeof(buf) - len, "[invalid]\t%d\t%d\n", 399 ah->stats.antenna_rx[0], ah->stats.antenna_tx[0]); 400 401 v = ath5k_hw_reg_read(ah, AR5K_DEFAULT_ANTENNA); 402 len += snprintf(buf + len, sizeof(buf) - len, 403 "\nAR5K_DEFAULT_ANTENNA\t0x%08x\n", v); 404 405 v = ath5k_hw_reg_read(ah, AR5K_STA_ID1); 406 len += snprintf(buf + len, sizeof(buf) - len, 407 "AR5K_STA_ID1_DEFAULT_ANTENNA\t%d\n", 408 (v & AR5K_STA_ID1_DEFAULT_ANTENNA) != 0); 409 len += snprintf(buf + len, sizeof(buf) - len, 410 "AR5K_STA_ID1_DESC_ANTENNA\t%d\n", 411 (v & AR5K_STA_ID1_DESC_ANTENNA) != 0); 412 len += snprintf(buf + len, sizeof(buf) - len, 413 "AR5K_STA_ID1_RTS_DEF_ANTENNA\t%d\n", 414 (v & AR5K_STA_ID1_RTS_DEF_ANTENNA) != 0); 415 len += snprintf(buf + len, sizeof(buf) - len, 416 "AR5K_STA_ID1_SELFGEN_DEF_ANT\t%d\n", 417 (v & AR5K_STA_ID1_SELFGEN_DEF_ANT) != 0); 418 419 v = ath5k_hw_reg_read(ah, AR5K_PHY_AGCCTL); 420 len += snprintf(buf + len, sizeof(buf) - len, 421 "\nAR5K_PHY_AGCCTL_OFDM_DIV_DIS\t%d\n", 422 (v & AR5K_PHY_AGCCTL_OFDM_DIV_DIS) != 0); 423 424 v = ath5k_hw_reg_read(ah, AR5K_PHY_RESTART); 425 len += snprintf(buf + len, sizeof(buf) - len, 426 "AR5K_PHY_RESTART_DIV_GC\t\t%x\n", 427 (v & AR5K_PHY_RESTART_DIV_GC) >> AR5K_PHY_RESTART_DIV_GC_S); 428 429 v = ath5k_hw_reg_read(ah, AR5K_PHY_FAST_ANT_DIV); 430 len += snprintf(buf + len, sizeof(buf) - len, 431 "AR5K_PHY_FAST_ANT_DIV_EN\t%d\n", 432 (v & AR5K_PHY_FAST_ANT_DIV_EN) != 0); 433 434 v = ath5k_hw_reg_read(ah, AR5K_PHY_ANT_SWITCH_TABLE_0); 435 len += snprintf(buf + len, sizeof(buf) - len, 436 "\nAR5K_PHY_ANT_SWITCH_TABLE_0\t0x%08x\n", v); 437 v = ath5k_hw_reg_read(ah, AR5K_PHY_ANT_SWITCH_TABLE_1); 438 len += snprintf(buf + len, sizeof(buf) - len, 439 "AR5K_PHY_ANT_SWITCH_TABLE_1\t0x%08x\n", v); 440 441 if (len > sizeof(buf)) 442 len = sizeof(buf); 443 444 return simple_read_from_buffer(user_buf, count, ppos, buf, len); 445 } 446 447 static ssize_t write_file_antenna(struct file *file, 448 const char __user *userbuf, 449 size_t count, loff_t *ppos) 450 { 451 struct ath5k_hw *ah = file->private_data; 452 unsigned int i; 453 char buf[20]; 454 455 if (copy_from_user(buf, userbuf, min(count, sizeof(buf)))) 456 return -EFAULT; 457 458 if (strncmp(buf, "diversity", 9) == 0) { 459 ath5k_hw_set_antenna_mode(ah, AR5K_ANTMODE_DEFAULT); 460 printk(KERN_INFO "ath5k debug: enable diversity\n"); 461 } else if (strncmp(buf, "fixed-a", 7) == 0) { 462 ath5k_hw_set_antenna_mode(ah, AR5K_ANTMODE_FIXED_A); 463 printk(KERN_INFO "ath5k debugfs: fixed antenna A\n"); 464 } else if (strncmp(buf, "fixed-b", 7) == 0) { 465 ath5k_hw_set_antenna_mode(ah, AR5K_ANTMODE_FIXED_B); 466 printk(KERN_INFO "ath5k debug: fixed antenna B\n"); 467 } else if (strncmp(buf, "clear", 5) == 0) { 468 for (i = 0; i < ARRAY_SIZE(ah->stats.antenna_rx); i++) { 469 ah->stats.antenna_rx[i] = 0; 470 ah->stats.antenna_tx[i] = 0; 471 } 472 printk(KERN_INFO "ath5k debug: cleared antenna stats\n"); 473 } 474 return count; 475 } 476 477 static const struct file_operations fops_antenna = { 478 .read = read_file_antenna, 479 .write = write_file_antenna, 480 .open = ath5k_debugfs_open, 481 .owner = THIS_MODULE, 482 .llseek = default_llseek, 483 }; 484 485 /* debugfs: misc */ 486 487 static ssize_t read_file_misc(struct file *file, char __user *user_buf, 488 size_t count, loff_t *ppos) 489 { 490 struct ath5k_hw *ah = file->private_data; 491 char buf[700]; 492 unsigned int len = 0; 493 u32 filt = ath5k_hw_get_rx_filter(ah); 494 495 len += snprintf(buf + len, sizeof(buf) - len, "bssid-mask: %pM\n", 496 ah->bssidmask); 497 len += snprintf(buf + len, sizeof(buf) - len, "filter-flags: 0x%x ", 498 filt); 499 if (filt & AR5K_RX_FILTER_UCAST) 500 len += snprintf(buf + len, sizeof(buf) - len, " UCAST"); 501 if (filt & AR5K_RX_FILTER_MCAST) 502 len += snprintf(buf + len, sizeof(buf) - len, " MCAST"); 503 if (filt & AR5K_RX_FILTER_BCAST) 504 len += snprintf(buf + len, sizeof(buf) - len, " BCAST"); 505 if (filt & AR5K_RX_FILTER_CONTROL) 506 len += snprintf(buf + len, sizeof(buf) - len, " CONTROL"); 507 if (filt & AR5K_RX_FILTER_BEACON) 508 len += snprintf(buf + len, sizeof(buf) - len, " BEACON"); 509 if (filt & AR5K_RX_FILTER_PROM) 510 len += snprintf(buf + len, sizeof(buf) - len, " PROM"); 511 if (filt & AR5K_RX_FILTER_XRPOLL) 512 len += snprintf(buf + len, sizeof(buf) - len, " XRPOLL"); 513 if (filt & AR5K_RX_FILTER_PROBEREQ) 514 len += snprintf(buf + len, sizeof(buf) - len, " PROBEREQ"); 515 if (filt & AR5K_RX_FILTER_PHYERR_5212) 516 len += snprintf(buf + len, sizeof(buf) - len, " PHYERR-5212"); 517 if (filt & AR5K_RX_FILTER_RADARERR_5212) 518 len += snprintf(buf + len, sizeof(buf) - len, " RADARERR-5212"); 519 if (filt & AR5K_RX_FILTER_PHYERR_5211) 520 snprintf(buf + len, sizeof(buf) - len, " PHYERR-5211"); 521 if (filt & AR5K_RX_FILTER_RADARERR_5211) 522 len += snprintf(buf + len, sizeof(buf) - len, " RADARERR-5211"); 523 524 len += snprintf(buf + len, sizeof(buf) - len, "\nopmode: %s (%d)\n", 525 ath_opmode_to_string(ah->opmode), ah->opmode); 526 527 if (len > sizeof(buf)) 528 len = sizeof(buf); 529 530 return simple_read_from_buffer(user_buf, count, ppos, buf, len); 531 } 532 533 static const struct file_operations fops_misc = { 534 .read = read_file_misc, 535 .open = ath5k_debugfs_open, 536 .owner = THIS_MODULE, 537 }; 538 539 540 /* debugfs: frameerrors */ 541 542 static ssize_t read_file_frameerrors(struct file *file, char __user *user_buf, 543 size_t count, loff_t *ppos) 544 { 545 struct ath5k_hw *ah = file->private_data; 546 struct ath5k_statistics *st = &ah->stats; 547 char buf[700]; 548 unsigned int len = 0; 549 int i; 550 551 len += snprintf(buf + len, sizeof(buf) - len, 552 "RX\n---------------------\n"); 553 len += snprintf(buf + len, sizeof(buf) - len, "CRC\t%u\t(%u%%)\n", 554 st->rxerr_crc, 555 st->rx_all_count > 0 ? 556 st->rxerr_crc * 100 / st->rx_all_count : 0); 557 len += snprintf(buf + len, sizeof(buf) - len, "PHY\t%u\t(%u%%)\n", 558 st->rxerr_phy, 559 st->rx_all_count > 0 ? 560 st->rxerr_phy * 100 / st->rx_all_count : 0); 561 for (i = 0; i < 32; i++) { 562 if (st->rxerr_phy_code[i]) 563 len += snprintf(buf + len, sizeof(buf) - len, 564 " phy_err[%u]\t%u\n", 565 i, st->rxerr_phy_code[i]); 566 } 567 568 len += snprintf(buf + len, sizeof(buf) - len, "FIFO\t%u\t(%u%%)\n", 569 st->rxerr_fifo, 570 st->rx_all_count > 0 ? 571 st->rxerr_fifo * 100 / st->rx_all_count : 0); 572 len += snprintf(buf + len, sizeof(buf) - len, "decrypt\t%u\t(%u%%)\n", 573 st->rxerr_decrypt, 574 st->rx_all_count > 0 ? 575 st->rxerr_decrypt * 100 / st->rx_all_count : 0); 576 len += snprintf(buf + len, sizeof(buf) - len, "MIC\t%u\t(%u%%)\n", 577 st->rxerr_mic, 578 st->rx_all_count > 0 ? 579 st->rxerr_mic * 100 / st->rx_all_count : 0); 580 len += snprintf(buf + len, sizeof(buf) - len, "process\t%u\t(%u%%)\n", 581 st->rxerr_proc, 582 st->rx_all_count > 0 ? 583 st->rxerr_proc * 100 / st->rx_all_count : 0); 584 len += snprintf(buf + len, sizeof(buf) - len, "jumbo\t%u\t(%u%%)\n", 585 st->rxerr_jumbo, 586 st->rx_all_count > 0 ? 587 st->rxerr_jumbo * 100 / st->rx_all_count : 0); 588 len += snprintf(buf + len, sizeof(buf) - len, "[RX all\t%u]\n", 589 st->rx_all_count); 590 len += snprintf(buf + len, sizeof(buf) - len, "RX-all-bytes\t%u\n", 591 st->rx_bytes_count); 592 593 len += snprintf(buf + len, sizeof(buf) - len, 594 "\nTX\n---------------------\n"); 595 len += snprintf(buf + len, sizeof(buf) - len, "retry\t%u\t(%u%%)\n", 596 st->txerr_retry, 597 st->tx_all_count > 0 ? 598 st->txerr_retry * 100 / st->tx_all_count : 0); 599 len += snprintf(buf + len, sizeof(buf) - len, "FIFO\t%u\t(%u%%)\n", 600 st->txerr_fifo, 601 st->tx_all_count > 0 ? 602 st->txerr_fifo * 100 / st->tx_all_count : 0); 603 len += snprintf(buf + len, sizeof(buf) - len, "filter\t%u\t(%u%%)\n", 604 st->txerr_filt, 605 st->tx_all_count > 0 ? 606 st->txerr_filt * 100 / st->tx_all_count : 0); 607 len += snprintf(buf + len, sizeof(buf) - len, "[TX all\t%u]\n", 608 st->tx_all_count); 609 len += snprintf(buf + len, sizeof(buf) - len, "TX-all-bytes\t%u\n", 610 st->tx_bytes_count); 611 612 if (len > sizeof(buf)) 613 len = sizeof(buf); 614 615 return simple_read_from_buffer(user_buf, count, ppos, buf, len); 616 } 617 618 static ssize_t write_file_frameerrors(struct file *file, 619 const char __user *userbuf, 620 size_t count, loff_t *ppos) 621 { 622 struct ath5k_hw *ah = file->private_data; 623 struct ath5k_statistics *st = &ah->stats; 624 char buf[20]; 625 626 if (copy_from_user(buf, userbuf, min(count, sizeof(buf)))) 627 return -EFAULT; 628 629 if (strncmp(buf, "clear", 5) == 0) { 630 st->rxerr_crc = 0; 631 st->rxerr_phy = 0; 632 st->rxerr_fifo = 0; 633 st->rxerr_decrypt = 0; 634 st->rxerr_mic = 0; 635 st->rxerr_proc = 0; 636 st->rxerr_jumbo = 0; 637 st->rx_all_count = 0; 638 st->txerr_retry = 0; 639 st->txerr_fifo = 0; 640 st->txerr_filt = 0; 641 st->tx_all_count = 0; 642 printk(KERN_INFO "ath5k debug: cleared frameerrors stats\n"); 643 } 644 return count; 645 } 646 647 static const struct file_operations fops_frameerrors = { 648 .read = read_file_frameerrors, 649 .write = write_file_frameerrors, 650 .open = ath5k_debugfs_open, 651 .owner = THIS_MODULE, 652 .llseek = default_llseek, 653 }; 654 655 656 /* debugfs: ani */ 657 658 static ssize_t read_file_ani(struct file *file, char __user *user_buf, 659 size_t count, loff_t *ppos) 660 { 661 struct ath5k_hw *ah = file->private_data; 662 struct ath5k_statistics *st = &ah->stats; 663 struct ath5k_ani_state *as = &ah->ani_state; 664 665 char buf[700]; 666 unsigned int len = 0; 667 668 len += snprintf(buf + len, sizeof(buf) - len, 669 "HW has PHY error counters:\t%s\n", 670 ah->ah_capabilities.cap_has_phyerr_counters ? 671 "yes" : "no"); 672 len += snprintf(buf + len, sizeof(buf) - len, 673 "HW max spur immunity level:\t%d\n", 674 as->max_spur_level); 675 len += snprintf(buf + len, sizeof(buf) - len, 676 "\nANI state\n--------------------------------------------\n"); 677 len += snprintf(buf + len, sizeof(buf) - len, "operating mode:\t\t\t"); 678 switch (as->ani_mode) { 679 case ATH5K_ANI_MODE_OFF: 680 len += snprintf(buf + len, sizeof(buf) - len, "OFF\n"); 681 break; 682 case ATH5K_ANI_MODE_MANUAL_LOW: 683 len += snprintf(buf + len, sizeof(buf) - len, 684 "MANUAL LOW\n"); 685 break; 686 case ATH5K_ANI_MODE_MANUAL_HIGH: 687 len += snprintf(buf + len, sizeof(buf) - len, 688 "MANUAL HIGH\n"); 689 break; 690 case ATH5K_ANI_MODE_AUTO: 691 len += snprintf(buf + len, sizeof(buf) - len, "AUTO\n"); 692 break; 693 default: 694 len += snprintf(buf + len, sizeof(buf) - len, 695 "??? (not good)\n"); 696 break; 697 } 698 len += snprintf(buf + len, sizeof(buf) - len, 699 "noise immunity level:\t\t%d\n", 700 as->noise_imm_level); 701 len += snprintf(buf + len, sizeof(buf) - len, 702 "spur immunity level:\t\t%d\n", 703 as->spur_level); 704 len += snprintf(buf + len, sizeof(buf) - len, 705 "firstep level:\t\t\t%d\n", 706 as->firstep_level); 707 len += snprintf(buf + len, sizeof(buf) - len, 708 "OFDM weak signal detection:\t%s\n", 709 as->ofdm_weak_sig ? "on" : "off"); 710 len += snprintf(buf + len, sizeof(buf) - len, 711 "CCK weak signal detection:\t%s\n", 712 as->cck_weak_sig ? "on" : "off"); 713 714 len += snprintf(buf + len, sizeof(buf) - len, 715 "\nMIB INTERRUPTS:\t\t%u\n", 716 st->mib_intr); 717 len += snprintf(buf + len, sizeof(buf) - len, 718 "beacon RSSI average:\t%d\n", 719 (int)ewma_read(&ah->ah_beacon_rssi_avg)); 720 721 #define CC_PRINT(_struct, _field) \ 722 _struct._field, \ 723 _struct.cycles > 0 ? \ 724 _struct._field * 100 / _struct.cycles : 0 725 726 len += snprintf(buf + len, sizeof(buf) - len, 727 "profcnt tx\t\t%u\t(%d%%)\n", 728 CC_PRINT(as->last_cc, tx_frame)); 729 len += snprintf(buf + len, sizeof(buf) - len, 730 "profcnt rx\t\t%u\t(%d%%)\n", 731 CC_PRINT(as->last_cc, rx_frame)); 732 len += snprintf(buf + len, sizeof(buf) - len, 733 "profcnt busy\t\t%u\t(%d%%)\n", 734 CC_PRINT(as->last_cc, rx_busy)); 735 #undef CC_PRINT 736 len += snprintf(buf + len, sizeof(buf) - len, "profcnt cycles\t\t%u\n", 737 as->last_cc.cycles); 738 len += snprintf(buf + len, sizeof(buf) - len, 739 "listen time\t\t%d\tlast: %d\n", 740 as->listen_time, as->last_listen); 741 len += snprintf(buf + len, sizeof(buf) - len, 742 "OFDM errors\t\t%u\tlast: %u\tsum: %u\n", 743 as->ofdm_errors, as->last_ofdm_errors, 744 as->sum_ofdm_errors); 745 len += snprintf(buf + len, sizeof(buf) - len, 746 "CCK errors\t\t%u\tlast: %u\tsum: %u\n", 747 as->cck_errors, as->last_cck_errors, 748 as->sum_cck_errors); 749 len += snprintf(buf + len, sizeof(buf) - len, 750 "AR5K_PHYERR_CNT1\t%x\t(=%d)\n", 751 ath5k_hw_reg_read(ah, AR5K_PHYERR_CNT1), 752 ATH5K_ANI_OFDM_TRIG_HIGH - (ATH5K_PHYERR_CNT_MAX - 753 ath5k_hw_reg_read(ah, AR5K_PHYERR_CNT1))); 754 len += snprintf(buf + len, sizeof(buf) - len, 755 "AR5K_PHYERR_CNT2\t%x\t(=%d)\n", 756 ath5k_hw_reg_read(ah, AR5K_PHYERR_CNT2), 757 ATH5K_ANI_CCK_TRIG_HIGH - (ATH5K_PHYERR_CNT_MAX - 758 ath5k_hw_reg_read(ah, AR5K_PHYERR_CNT2))); 759 760 if (len > sizeof(buf)) 761 len = sizeof(buf); 762 763 return simple_read_from_buffer(user_buf, count, ppos, buf, len); 764 } 765 766 static ssize_t write_file_ani(struct file *file, 767 const char __user *userbuf, 768 size_t count, loff_t *ppos) 769 { 770 struct ath5k_hw *ah = file->private_data; 771 char buf[20]; 772 773 if (copy_from_user(buf, userbuf, min(count, sizeof(buf)))) 774 return -EFAULT; 775 776 if (strncmp(buf, "sens-low", 8) == 0) { 777 ath5k_ani_init(ah, ATH5K_ANI_MODE_MANUAL_HIGH); 778 } else if (strncmp(buf, "sens-high", 9) == 0) { 779 ath5k_ani_init(ah, ATH5K_ANI_MODE_MANUAL_LOW); 780 } else if (strncmp(buf, "ani-off", 7) == 0) { 781 ath5k_ani_init(ah, ATH5K_ANI_MODE_OFF); 782 } else if (strncmp(buf, "ani-on", 6) == 0) { 783 ath5k_ani_init(ah, ATH5K_ANI_MODE_AUTO); 784 } else if (strncmp(buf, "noise-low", 9) == 0) { 785 ath5k_ani_set_noise_immunity_level(ah, 0); 786 } else if (strncmp(buf, "noise-high", 10) == 0) { 787 ath5k_ani_set_noise_immunity_level(ah, 788 ATH5K_ANI_MAX_NOISE_IMM_LVL); 789 } else if (strncmp(buf, "spur-low", 8) == 0) { 790 ath5k_ani_set_spur_immunity_level(ah, 0); 791 } else if (strncmp(buf, "spur-high", 9) == 0) { 792 ath5k_ani_set_spur_immunity_level(ah, 793 ah->ani_state.max_spur_level); 794 } else if (strncmp(buf, "fir-low", 7) == 0) { 795 ath5k_ani_set_firstep_level(ah, 0); 796 } else if (strncmp(buf, "fir-high", 8) == 0) { 797 ath5k_ani_set_firstep_level(ah, ATH5K_ANI_MAX_FIRSTEP_LVL); 798 } else if (strncmp(buf, "ofdm-off", 8) == 0) { 799 ath5k_ani_set_ofdm_weak_signal_detection(ah, false); 800 } else if (strncmp(buf, "ofdm-on", 7) == 0) { 801 ath5k_ani_set_ofdm_weak_signal_detection(ah, true); 802 } else if (strncmp(buf, "cck-off", 7) == 0) { 803 ath5k_ani_set_cck_weak_signal_detection(ah, false); 804 } else if (strncmp(buf, "cck-on", 6) == 0) { 805 ath5k_ani_set_cck_weak_signal_detection(ah, true); 806 } 807 return count; 808 } 809 810 static const struct file_operations fops_ani = { 811 .read = read_file_ani, 812 .write = write_file_ani, 813 .open = ath5k_debugfs_open, 814 .owner = THIS_MODULE, 815 .llseek = default_llseek, 816 }; 817 818 819 /* debugfs: queues etc */ 820 821 static ssize_t read_file_queue(struct file *file, char __user *user_buf, 822 size_t count, loff_t *ppos) 823 { 824 struct ath5k_hw *ah = file->private_data; 825 char buf[700]; 826 unsigned int len = 0; 827 828 struct ath5k_txq *txq; 829 struct ath5k_buf *bf, *bf0; 830 int i, n; 831 832 len += snprintf(buf + len, sizeof(buf) - len, 833 "available txbuffers: %d\n", ah->txbuf_len); 834 835 for (i = 0; i < ARRAY_SIZE(ah->txqs); i++) { 836 txq = &ah->txqs[i]; 837 838 len += snprintf(buf + len, sizeof(buf) - len, 839 "%02d: %ssetup\n", i, txq->setup ? "" : "not "); 840 841 if (!txq->setup) 842 continue; 843 844 n = 0; 845 spin_lock_bh(&txq->lock); 846 list_for_each_entry_safe(bf, bf0, &txq->q, list) 847 n++; 848 spin_unlock_bh(&txq->lock); 849 850 len += snprintf(buf + len, sizeof(buf) - len, 851 " len: %d bufs: %d\n", txq->txq_len, n); 852 len += snprintf(buf + len, sizeof(buf) - len, 853 " stuck: %d\n", txq->txq_stuck); 854 } 855 856 if (len > sizeof(buf)) 857 len = sizeof(buf); 858 859 return simple_read_from_buffer(user_buf, count, ppos, buf, len); 860 } 861 862 static ssize_t write_file_queue(struct file *file, 863 const char __user *userbuf, 864 size_t count, loff_t *ppos) 865 { 866 struct ath5k_hw *ah = file->private_data; 867 char buf[20]; 868 869 if (copy_from_user(buf, userbuf, min(count, sizeof(buf)))) 870 return -EFAULT; 871 872 if (strncmp(buf, "start", 5) == 0) 873 ieee80211_wake_queues(ah->hw); 874 else if (strncmp(buf, "stop", 4) == 0) 875 ieee80211_stop_queues(ah->hw); 876 877 return count; 878 } 879 880 881 static const struct file_operations fops_queue = { 882 .read = read_file_queue, 883 .write = write_file_queue, 884 .open = ath5k_debugfs_open, 885 .owner = THIS_MODULE, 886 .llseek = default_llseek, 887 }; 888 889 890 void 891 ath5k_debug_init_device(struct ath5k_hw *ah) 892 { 893 struct dentry *phydir; 894 895 ah->debug.level = ath5k_debug; 896 897 phydir = debugfs_create_dir("ath5k", ah->hw->wiphy->debugfsdir); 898 if (!phydir) 899 return; 900 901 debugfs_create_file("debug", S_IWUSR | S_IRUSR, phydir, ah, 902 &fops_debug); 903 904 debugfs_create_file("registers", S_IRUSR, phydir, ah, &fops_registers); 905 906 debugfs_create_file("beacon", S_IWUSR | S_IRUSR, phydir, ah, 907 &fops_beacon); 908 909 debugfs_create_file("reset", S_IWUSR, phydir, ah, &fops_reset); 910 911 debugfs_create_file("antenna", S_IWUSR | S_IRUSR, phydir, ah, 912 &fops_antenna); 913 914 debugfs_create_file("misc", S_IRUSR, phydir, ah, &fops_misc); 915 916 debugfs_create_file("frameerrors", S_IWUSR | S_IRUSR, phydir, ah, 917 &fops_frameerrors); 918 919 debugfs_create_file("ani", S_IWUSR | S_IRUSR, phydir, ah, &fops_ani); 920 921 debugfs_create_file("queue", S_IWUSR | S_IRUSR, phydir, ah, 922 &fops_queue); 923 924 debugfs_create_bool("32khz_clock", S_IWUSR | S_IRUSR, phydir, 925 &ah->ah_use_32khz_clock); 926 } 927 928 /* functions used in other places */ 929 930 void 931 ath5k_debug_dump_bands(struct ath5k_hw *ah) 932 { 933 unsigned int b, i; 934 935 if (likely(!(ah->debug.level & ATH5K_DEBUG_DUMPBANDS))) 936 return; 937 938 BUG_ON(!ah->sbands); 939 940 for (b = 0; b < IEEE80211_NUM_BANDS; b++) { 941 struct ieee80211_supported_band *band = &ah->sbands[b]; 942 char bname[6]; 943 switch (band->band) { 944 case IEEE80211_BAND_2GHZ: 945 strcpy(bname, "2 GHz"); 946 break; 947 case IEEE80211_BAND_5GHZ: 948 strcpy(bname, "5 GHz"); 949 break; 950 default: 951 printk(KERN_DEBUG "Band not supported: %d\n", 952 band->band); 953 return; 954 } 955 printk(KERN_DEBUG "Band %s: channels %d, rates %d\n", bname, 956 band->n_channels, band->n_bitrates); 957 printk(KERN_DEBUG " channels:\n"); 958 for (i = 0; i < band->n_channels; i++) 959 printk(KERN_DEBUG " %3d %d %.4x %.4x\n", 960 ieee80211_frequency_to_channel( 961 band->channels[i].center_freq), 962 band->channels[i].center_freq, 963 band->channels[i].hw_value, 964 band->channels[i].flags); 965 printk(KERN_DEBUG " rates:\n"); 966 for (i = 0; i < band->n_bitrates; i++) 967 printk(KERN_DEBUG " %4d %.4x %.4x %.4x\n", 968 band->bitrates[i].bitrate, 969 band->bitrates[i].hw_value, 970 band->bitrates[i].flags, 971 band->bitrates[i].hw_value_short); 972 } 973 } 974 975 static inline void 976 ath5k_debug_printrxbuf(struct ath5k_buf *bf, int done, 977 struct ath5k_rx_status *rs) 978 { 979 struct ath5k_desc *ds = bf->desc; 980 struct ath5k_hw_all_rx_desc *rd = &ds->ud.ds_rx; 981 982 printk(KERN_DEBUG "R (%p %llx) %08x %08x %08x %08x %08x %08x %c\n", 983 ds, (unsigned long long)bf->daddr, 984 ds->ds_link, ds->ds_data, 985 rd->rx_ctl.rx_control_0, rd->rx_ctl.rx_control_1, 986 rd->rx_stat.rx_status_0, rd->rx_stat.rx_status_1, 987 !done ? ' ' : (rs->rs_status == 0) ? '*' : '!'); 988 } 989 990 void 991 ath5k_debug_printrxbuffs(struct ath5k_hw *ah) 992 { 993 struct ath5k_desc *ds; 994 struct ath5k_buf *bf; 995 struct ath5k_rx_status rs = {}; 996 int status; 997 998 if (likely(!(ah->debug.level & ATH5K_DEBUG_DESC))) 999 return; 1000 1001 printk(KERN_DEBUG "rxdp %x, rxlink %p\n", 1002 ath5k_hw_get_rxdp(ah), ah->rxlink); 1003 1004 spin_lock_bh(&ah->rxbuflock); 1005 list_for_each_entry(bf, &ah->rxbuf, list) { 1006 ds = bf->desc; 1007 status = ah->ah_proc_rx_desc(ah, ds, &rs); 1008 if (!status) 1009 ath5k_debug_printrxbuf(bf, status == 0, &rs); 1010 } 1011 spin_unlock_bh(&ah->rxbuflock); 1012 } 1013 1014 void 1015 ath5k_debug_printtxbuf(struct ath5k_hw *ah, struct ath5k_buf *bf) 1016 { 1017 struct ath5k_desc *ds = bf->desc; 1018 struct ath5k_hw_5212_tx_desc *td = &ds->ud.ds_tx5212; 1019 struct ath5k_tx_status ts = {}; 1020 int done; 1021 1022 if (likely(!(ah->debug.level & ATH5K_DEBUG_DESC))) 1023 return; 1024 1025 done = ah->ah_proc_tx_desc(ah, bf->desc, &ts); 1026 1027 printk(KERN_DEBUG "T (%p %llx) %08x %08x %08x %08x %08x %08x %08x " 1028 "%08x %c\n", ds, (unsigned long long)bf->daddr, ds->ds_link, 1029 ds->ds_data, td->tx_ctl.tx_control_0, td->tx_ctl.tx_control_1, 1030 td->tx_ctl.tx_control_2, td->tx_ctl.tx_control_3, 1031 td->tx_stat.tx_status_0, td->tx_stat.tx_status_1, 1032 done ? ' ' : (ts.ts_status == 0) ? '*' : '!'); 1033 } 1034 1035 #endif /* ifdef CONFIG_ATH5K_DEBUG */ 1036