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 <linux/module.h> 62 #include <linux/seq_file.h> 63 #include <linux/list.h> 64 #include "debug.h" 65 #include "ath5k.h" 66 #include "reg.h" 67 #include "base.h" 68 69 static unsigned int ath5k_debug; 70 module_param_named(debug, ath5k_debug, uint, 0); 71 72 73 static int ath5k_debugfs_open(struct inode *inode, struct file *file) 74 { 75 file->private_data = inode->i_private; 76 return 0; 77 } 78 79 80 /* debugfs: registers */ 81 82 struct reg { 83 const char *name; 84 int addr; 85 }; 86 87 #define REG_STRUCT_INIT(r) { #r, r } 88 89 /* just a few random registers, might want to add more */ 90 static const struct reg regs[] = { 91 REG_STRUCT_INIT(AR5K_CR), 92 REG_STRUCT_INIT(AR5K_RXDP), 93 REG_STRUCT_INIT(AR5K_CFG), 94 REG_STRUCT_INIT(AR5K_IER), 95 REG_STRUCT_INIT(AR5K_BCR), 96 REG_STRUCT_INIT(AR5K_RTSD0), 97 REG_STRUCT_INIT(AR5K_RTSD1), 98 REG_STRUCT_INIT(AR5K_TXCFG), 99 REG_STRUCT_INIT(AR5K_RXCFG), 100 REG_STRUCT_INIT(AR5K_RXJLA), 101 REG_STRUCT_INIT(AR5K_MIBC), 102 REG_STRUCT_INIT(AR5K_TOPS), 103 REG_STRUCT_INIT(AR5K_RXNOFRM), 104 REG_STRUCT_INIT(AR5K_TXNOFRM), 105 REG_STRUCT_INIT(AR5K_RPGTO), 106 REG_STRUCT_INIT(AR5K_RFCNT), 107 REG_STRUCT_INIT(AR5K_MISC), 108 REG_STRUCT_INIT(AR5K_QCUDCU_CLKGT), 109 REG_STRUCT_INIT(AR5K_ISR), 110 REG_STRUCT_INIT(AR5K_PISR), 111 REG_STRUCT_INIT(AR5K_SISR0), 112 REG_STRUCT_INIT(AR5K_SISR1), 113 REG_STRUCT_INIT(AR5K_SISR2), 114 REG_STRUCT_INIT(AR5K_SISR3), 115 REG_STRUCT_INIT(AR5K_SISR4), 116 REG_STRUCT_INIT(AR5K_IMR), 117 REG_STRUCT_INIT(AR5K_PIMR), 118 REG_STRUCT_INIT(AR5K_SIMR0), 119 REG_STRUCT_INIT(AR5K_SIMR1), 120 REG_STRUCT_INIT(AR5K_SIMR2), 121 REG_STRUCT_INIT(AR5K_SIMR3), 122 REG_STRUCT_INIT(AR5K_SIMR4), 123 REG_STRUCT_INIT(AR5K_DCM_ADDR), 124 REG_STRUCT_INIT(AR5K_DCCFG), 125 REG_STRUCT_INIT(AR5K_CCFG), 126 REG_STRUCT_INIT(AR5K_CPC0), 127 REG_STRUCT_INIT(AR5K_CPC1), 128 REG_STRUCT_INIT(AR5K_CPC2), 129 REG_STRUCT_INIT(AR5K_CPC3), 130 REG_STRUCT_INIT(AR5K_CPCOVF), 131 REG_STRUCT_INIT(AR5K_RESET_CTL), 132 REG_STRUCT_INIT(AR5K_SLEEP_CTL), 133 REG_STRUCT_INIT(AR5K_INTPEND), 134 REG_STRUCT_INIT(AR5K_SFR), 135 REG_STRUCT_INIT(AR5K_PCICFG), 136 REG_STRUCT_INIT(AR5K_GPIOCR), 137 REG_STRUCT_INIT(AR5K_GPIODO), 138 REG_STRUCT_INIT(AR5K_SREV), 139 }; 140 141 static void *reg_start(struct seq_file *seq, loff_t *pos) 142 { 143 return *pos < ARRAY_SIZE(regs) ? (void *)®s[*pos] : NULL; 144 } 145 146 static void reg_stop(struct seq_file *seq, void *p) 147 { 148 /* nothing to do */ 149 } 150 151 static void *reg_next(struct seq_file *seq, void *p, loff_t *pos) 152 { 153 ++*pos; 154 return *pos < ARRAY_SIZE(regs) ? (void *)®s[*pos] : NULL; 155 } 156 157 static int reg_show(struct seq_file *seq, void *p) 158 { 159 struct ath5k_hw *ah = seq->private; 160 struct reg *r = p; 161 seq_printf(seq, "%-25s0x%08x\n", r->name, 162 ath5k_hw_reg_read(ah, r->addr)); 163 return 0; 164 } 165 166 static const struct seq_operations register_seq_ops = { 167 .start = reg_start, 168 .next = reg_next, 169 .stop = reg_stop, 170 .show = reg_show 171 }; 172 173 static int open_file_registers(struct inode *inode, struct file *file) 174 { 175 struct seq_file *s; 176 int res; 177 res = seq_open(file, ®ister_seq_ops); 178 if (res == 0) { 179 s = file->private_data; 180 s->private = inode->i_private; 181 } 182 return res; 183 } 184 185 static const struct file_operations fops_registers = { 186 .open = open_file_registers, 187 .read = seq_read, 188 .llseek = seq_lseek, 189 .release = seq_release, 190 .owner = THIS_MODULE, 191 }; 192 193 194 /* debugfs: beacons */ 195 196 static ssize_t read_file_beacon(struct file *file, char __user *user_buf, 197 size_t count, loff_t *ppos) 198 { 199 struct ath5k_hw *ah = file->private_data; 200 char buf[500]; 201 unsigned int len = 0; 202 unsigned int v; 203 u64 tsf; 204 205 v = ath5k_hw_reg_read(ah, AR5K_BEACON); 206 len += snprintf(buf + len, sizeof(buf) - len, 207 "%-24s0x%08x\tintval: %d\tTIM: 0x%x\n", 208 "AR5K_BEACON", v, v & AR5K_BEACON_PERIOD, 209 (v & AR5K_BEACON_TIM) >> AR5K_BEACON_TIM_S); 210 211 len += snprintf(buf + len, sizeof(buf) - len, "%-24s0x%08x\n", 212 "AR5K_LAST_TSTP", ath5k_hw_reg_read(ah, AR5K_LAST_TSTP)); 213 214 len += snprintf(buf + len, sizeof(buf) - len, "%-24s0x%08x\n\n", 215 "AR5K_BEACON_CNT", ath5k_hw_reg_read(ah, AR5K_BEACON_CNT)); 216 217 v = ath5k_hw_reg_read(ah, AR5K_TIMER0); 218 len += snprintf(buf + len, sizeof(buf) - len, "%-24s0x%08x\tTU: %08x\n", 219 "AR5K_TIMER0 (TBTT)", v, v); 220 221 v = ath5k_hw_reg_read(ah, AR5K_TIMER1); 222 len += snprintf(buf + len, sizeof(buf) - len, "%-24s0x%08x\tTU: %08x\n", 223 "AR5K_TIMER1 (DMA)", v, v >> 3); 224 225 v = ath5k_hw_reg_read(ah, AR5K_TIMER2); 226 len += snprintf(buf + len, sizeof(buf) - len, "%-24s0x%08x\tTU: %08x\n", 227 "AR5K_TIMER2 (SWBA)", v, v >> 3); 228 229 v = ath5k_hw_reg_read(ah, AR5K_TIMER3); 230 len += snprintf(buf + len, sizeof(buf) - len, "%-24s0x%08x\tTU: %08x\n", 231 "AR5K_TIMER3 (ATIM)", v, v); 232 233 tsf = ath5k_hw_get_tsf64(ah); 234 len += snprintf(buf + len, sizeof(buf) - len, 235 "TSF\t\t0x%016llx\tTU: %08x\n", 236 (unsigned long long)tsf, TSF_TO_TU(tsf)); 237 238 if (len > sizeof(buf)) 239 len = sizeof(buf); 240 241 return simple_read_from_buffer(user_buf, count, ppos, buf, len); 242 } 243 244 static ssize_t write_file_beacon(struct file *file, 245 const char __user *userbuf, 246 size_t count, loff_t *ppos) 247 { 248 struct ath5k_hw *ah = file->private_data; 249 char buf[20]; 250 251 if (copy_from_user(buf, userbuf, min(count, sizeof(buf)))) 252 return -EFAULT; 253 254 if (strncmp(buf, "disable", 7) == 0) { 255 AR5K_REG_DISABLE_BITS(ah, AR5K_BEACON, AR5K_BEACON_ENABLE); 256 printk(KERN_INFO "debugfs disable beacons\n"); 257 } else if (strncmp(buf, "enable", 6) == 0) { 258 AR5K_REG_ENABLE_BITS(ah, AR5K_BEACON, AR5K_BEACON_ENABLE); 259 printk(KERN_INFO "debugfs enable beacons\n"); 260 } 261 return count; 262 } 263 264 static const struct file_operations fops_beacon = { 265 .read = read_file_beacon, 266 .write = write_file_beacon, 267 .open = ath5k_debugfs_open, 268 .owner = THIS_MODULE, 269 .llseek = default_llseek, 270 }; 271 272 273 /* debugfs: reset */ 274 275 static ssize_t write_file_reset(struct file *file, 276 const char __user *userbuf, 277 size_t count, loff_t *ppos) 278 { 279 struct ath5k_hw *ah = file->private_data; 280 ATH5K_DBG(ah, ATH5K_DEBUG_RESET, "debug file triggered reset\n"); 281 ieee80211_queue_work(ah->hw, &ah->reset_work); 282 return count; 283 } 284 285 static const struct file_operations fops_reset = { 286 .write = write_file_reset, 287 .open = ath5k_debugfs_open, 288 .owner = THIS_MODULE, 289 .llseek = noop_llseek, 290 }; 291 292 293 /* debugfs: debug level */ 294 295 static const struct { 296 enum ath5k_debug_level level; 297 const char *name; 298 const char *desc; 299 } dbg_info[] = { 300 { ATH5K_DEBUG_RESET, "reset", "reset and initialization" }, 301 { ATH5K_DEBUG_INTR, "intr", "interrupt handling" }, 302 { ATH5K_DEBUG_MODE, "mode", "mode init/setup" }, 303 { ATH5K_DEBUG_XMIT, "xmit", "basic xmit operation" }, 304 { ATH5K_DEBUG_BEACON, "beacon", "beacon handling" }, 305 { ATH5K_DEBUG_CALIBRATE, "calib", "periodic calibration" }, 306 { ATH5K_DEBUG_TXPOWER, "txpower", "transmit power setting" }, 307 { ATH5K_DEBUG_LED, "led", "LED management" }, 308 { ATH5K_DEBUG_DUMPBANDS, "dumpbands", "dump bands" }, 309 { ATH5K_DEBUG_DMA, "dma", "dma start/stop" }, 310 { ATH5K_DEBUG_ANI, "ani", "adaptive noise immunity" }, 311 { ATH5K_DEBUG_DESC, "desc", "descriptor chains" }, 312 { ATH5K_DEBUG_ANY, "all", "show all debug levels" }, 313 }; 314 315 static ssize_t read_file_debug(struct file *file, char __user *user_buf, 316 size_t count, loff_t *ppos) 317 { 318 struct ath5k_hw *ah = file->private_data; 319 char buf[700]; 320 unsigned int len = 0; 321 unsigned int i; 322 323 len += snprintf(buf + len, sizeof(buf) - len, 324 "DEBUG LEVEL: 0x%08x\n\n", ah->debug.level); 325 326 for (i = 0; i < ARRAY_SIZE(dbg_info) - 1; i++) { 327 len += snprintf(buf + len, sizeof(buf) - len, 328 "%10s %c 0x%08x - %s\n", dbg_info[i].name, 329 ah->debug.level & dbg_info[i].level ? '+' : ' ', 330 dbg_info[i].level, dbg_info[i].desc); 331 } 332 len += snprintf(buf + len, sizeof(buf) - len, 333 "%10s %c 0x%08x - %s\n", dbg_info[i].name, 334 ah->debug.level == dbg_info[i].level ? '+' : ' ', 335 dbg_info[i].level, dbg_info[i].desc); 336 337 if (len > sizeof(buf)) 338 len = sizeof(buf); 339 340 return simple_read_from_buffer(user_buf, count, ppos, buf, len); 341 } 342 343 static ssize_t write_file_debug(struct file *file, 344 const char __user *userbuf, 345 size_t count, loff_t *ppos) 346 { 347 struct ath5k_hw *ah = file->private_data; 348 unsigned int i; 349 char buf[20]; 350 351 if (copy_from_user(buf, userbuf, min(count, sizeof(buf)))) 352 return -EFAULT; 353 354 for (i = 0; i < ARRAY_SIZE(dbg_info); i++) { 355 if (strncmp(buf, dbg_info[i].name, 356 strlen(dbg_info[i].name)) == 0) { 357 ah->debug.level ^= dbg_info[i].level; /* toggle bit */ 358 break; 359 } 360 } 361 return count; 362 } 363 364 static const struct file_operations fops_debug = { 365 .read = read_file_debug, 366 .write = write_file_debug, 367 .open = ath5k_debugfs_open, 368 .owner = THIS_MODULE, 369 .llseek = default_llseek, 370 }; 371 372 373 /* debugfs: antenna */ 374 375 static ssize_t read_file_antenna(struct file *file, char __user *user_buf, 376 size_t count, loff_t *ppos) 377 { 378 struct ath5k_hw *ah = file->private_data; 379 char buf[700]; 380 unsigned int len = 0; 381 unsigned int i; 382 unsigned int v; 383 384 len += snprintf(buf + len, sizeof(buf) - len, "antenna mode\t%d\n", 385 ah->ah_ant_mode); 386 len += snprintf(buf + len, sizeof(buf) - len, "default antenna\t%d\n", 387 ah->ah_def_ant); 388 len += snprintf(buf + len, sizeof(buf) - len, "tx antenna\t%d\n", 389 ah->ah_tx_ant); 390 391 len += snprintf(buf + len, sizeof(buf) - len, "\nANTENNA\t\tRX\tTX\n"); 392 for (i = 1; i < ARRAY_SIZE(ah->stats.antenna_rx); i++) { 393 len += snprintf(buf + len, sizeof(buf) - len, 394 "[antenna %d]\t%d\t%d\n", 395 i, ah->stats.antenna_rx[i], ah->stats.antenna_tx[i]); 396 } 397 len += snprintf(buf + len, sizeof(buf) - len, "[invalid]\t%d\t%d\n", 398 ah->stats.antenna_rx[0], ah->stats.antenna_tx[0]); 399 400 v = ath5k_hw_reg_read(ah, AR5K_DEFAULT_ANTENNA); 401 len += snprintf(buf + len, sizeof(buf) - len, 402 "\nAR5K_DEFAULT_ANTENNA\t0x%08x\n", v); 403 404 v = ath5k_hw_reg_read(ah, AR5K_STA_ID1); 405 len += snprintf(buf + len, sizeof(buf) - len, 406 "AR5K_STA_ID1_DEFAULT_ANTENNA\t%d\n", 407 (v & AR5K_STA_ID1_DEFAULT_ANTENNA) != 0); 408 len += snprintf(buf + len, sizeof(buf) - len, 409 "AR5K_STA_ID1_DESC_ANTENNA\t%d\n", 410 (v & AR5K_STA_ID1_DESC_ANTENNA) != 0); 411 len += snprintf(buf + len, sizeof(buf) - len, 412 "AR5K_STA_ID1_RTS_DEF_ANTENNA\t%d\n", 413 (v & AR5K_STA_ID1_RTS_DEF_ANTENNA) != 0); 414 len += snprintf(buf + len, sizeof(buf) - len, 415 "AR5K_STA_ID1_SELFGEN_DEF_ANT\t%d\n", 416 (v & AR5K_STA_ID1_SELFGEN_DEF_ANT) != 0); 417 418 v = ath5k_hw_reg_read(ah, AR5K_PHY_AGCCTL); 419 len += snprintf(buf + len, sizeof(buf) - len, 420 "\nAR5K_PHY_AGCCTL_OFDM_DIV_DIS\t%d\n", 421 (v & AR5K_PHY_AGCCTL_OFDM_DIV_DIS) != 0); 422 423 v = ath5k_hw_reg_read(ah, AR5K_PHY_RESTART); 424 len += snprintf(buf + len, sizeof(buf) - len, 425 "AR5K_PHY_RESTART_DIV_GC\t\t%x\n", 426 (v & AR5K_PHY_RESTART_DIV_GC) >> AR5K_PHY_RESTART_DIV_GC_S); 427 428 v = ath5k_hw_reg_read(ah, AR5K_PHY_FAST_ANT_DIV); 429 len += snprintf(buf + len, sizeof(buf) - len, 430 "AR5K_PHY_FAST_ANT_DIV_EN\t%d\n", 431 (v & AR5K_PHY_FAST_ANT_DIV_EN) != 0); 432 433 v = ath5k_hw_reg_read(ah, AR5K_PHY_ANT_SWITCH_TABLE_0); 434 len += snprintf(buf + len, sizeof(buf) - len, 435 "\nAR5K_PHY_ANT_SWITCH_TABLE_0\t0x%08x\n", v); 436 v = ath5k_hw_reg_read(ah, AR5K_PHY_ANT_SWITCH_TABLE_1); 437 len += snprintf(buf + len, sizeof(buf) - len, 438 "AR5K_PHY_ANT_SWITCH_TABLE_1\t0x%08x\n", v); 439 440 if (len > sizeof(buf)) 441 len = sizeof(buf); 442 443 return simple_read_from_buffer(user_buf, count, ppos, buf, len); 444 } 445 446 static ssize_t write_file_antenna(struct file *file, 447 const char __user *userbuf, 448 size_t count, loff_t *ppos) 449 { 450 struct ath5k_hw *ah = file->private_data; 451 unsigned int i; 452 char buf[20]; 453 454 if (copy_from_user(buf, userbuf, min(count, sizeof(buf)))) 455 return -EFAULT; 456 457 if (strncmp(buf, "diversity", 9) == 0) { 458 ath5k_hw_set_antenna_mode(ah, AR5K_ANTMODE_DEFAULT); 459 printk(KERN_INFO "ath5k debug: enable diversity\n"); 460 } else if (strncmp(buf, "fixed-a", 7) == 0) { 461 ath5k_hw_set_antenna_mode(ah, AR5K_ANTMODE_FIXED_A); 462 printk(KERN_INFO "ath5k debugfs: fixed antenna A\n"); 463 } else if (strncmp(buf, "fixed-b", 7) == 0) { 464 ath5k_hw_set_antenna_mode(ah, AR5K_ANTMODE_FIXED_B); 465 printk(KERN_INFO "ath5k debug: fixed antenna B\n"); 466 } else if (strncmp(buf, "clear", 5) == 0) { 467 for (i = 0; i < ARRAY_SIZE(ah->stats.antenna_rx); i++) { 468 ah->stats.antenna_rx[i] = 0; 469 ah->stats.antenna_tx[i] = 0; 470 } 471 printk(KERN_INFO "ath5k debug: cleared antenna stats\n"); 472 } 473 return count; 474 } 475 476 static const struct file_operations fops_antenna = { 477 .read = read_file_antenna, 478 .write = write_file_antenna, 479 .open = ath5k_debugfs_open, 480 .owner = THIS_MODULE, 481 .llseek = default_llseek, 482 }; 483 484 /* debugfs: misc */ 485 486 static ssize_t read_file_misc(struct file *file, char __user *user_buf, 487 size_t count, loff_t *ppos) 488 { 489 struct ath5k_hw *ah = file->private_data; 490 char buf[700]; 491 unsigned int len = 0; 492 u32 filt = ath5k_hw_get_rx_filter(ah); 493 494 len += snprintf(buf + len, sizeof(buf) - len, "bssid-mask: %pM\n", 495 ah->bssidmask); 496 len += snprintf(buf + len, sizeof(buf) - len, "filter-flags: 0x%x ", 497 filt); 498 if (filt & AR5K_RX_FILTER_UCAST) 499 len += snprintf(buf + len, sizeof(buf) - len, " UCAST"); 500 if (filt & AR5K_RX_FILTER_MCAST) 501 len += snprintf(buf + len, sizeof(buf) - len, " MCAST"); 502 if (filt & AR5K_RX_FILTER_BCAST) 503 len += snprintf(buf + len, sizeof(buf) - len, " BCAST"); 504 if (filt & AR5K_RX_FILTER_CONTROL) 505 len += snprintf(buf + len, sizeof(buf) - len, " CONTROL"); 506 if (filt & AR5K_RX_FILTER_BEACON) 507 len += snprintf(buf + len, sizeof(buf) - len, " BEACON"); 508 if (filt & AR5K_RX_FILTER_PROM) 509 len += snprintf(buf + len, sizeof(buf) - len, " PROM"); 510 if (filt & AR5K_RX_FILTER_XRPOLL) 511 len += snprintf(buf + len, sizeof(buf) - len, " XRPOLL"); 512 if (filt & AR5K_RX_FILTER_PROBEREQ) 513 len += snprintf(buf + len, sizeof(buf) - len, " PROBEREQ"); 514 if (filt & AR5K_RX_FILTER_PHYERR_5212) 515 len += snprintf(buf + len, sizeof(buf) - len, " PHYERR-5212"); 516 if (filt & AR5K_RX_FILTER_RADARERR_5212) 517 len += snprintf(buf + len, sizeof(buf) - len, " RADARERR-5212"); 518 if (filt & AR5K_RX_FILTER_PHYERR_5211) 519 snprintf(buf + len, sizeof(buf) - len, " PHYERR-5211"); 520 if (filt & AR5K_RX_FILTER_RADARERR_5211) 521 len += snprintf(buf + len, sizeof(buf) - len, " RADARERR-5211"); 522 523 len += snprintf(buf + len, sizeof(buf) - len, "\nopmode: %s (%d)\n", 524 ath_opmode_to_string(ah->opmode), ah->opmode); 525 526 if (len > sizeof(buf)) 527 len = sizeof(buf); 528 529 return simple_read_from_buffer(user_buf, count, ppos, buf, len); 530 } 531 532 static const struct file_operations fops_misc = { 533 .read = read_file_misc, 534 .open = ath5k_debugfs_open, 535 .owner = THIS_MODULE, 536 }; 537 538 539 /* debugfs: frameerrors */ 540 541 static ssize_t read_file_frameerrors(struct file *file, char __user *user_buf, 542 size_t count, loff_t *ppos) 543 { 544 struct ath5k_hw *ah = file->private_data; 545 struct ath5k_statistics *st = &ah->stats; 546 char buf[700]; 547 unsigned int len = 0; 548 int i; 549 550 len += snprintf(buf + len, sizeof(buf) - len, 551 "RX\n---------------------\n"); 552 len += snprintf(buf + len, sizeof(buf) - len, "CRC\t%u\t(%u%%)\n", 553 st->rxerr_crc, 554 st->rx_all_count > 0 ? 555 st->rxerr_crc * 100 / st->rx_all_count : 0); 556 len += snprintf(buf + len, sizeof(buf) - len, "PHY\t%u\t(%u%%)\n", 557 st->rxerr_phy, 558 st->rx_all_count > 0 ? 559 st->rxerr_phy * 100 / st->rx_all_count : 0); 560 for (i = 0; i < 32; i++) { 561 if (st->rxerr_phy_code[i]) 562 len += snprintf(buf + len, sizeof(buf) - len, 563 " phy_err[%u]\t%u\n", 564 i, st->rxerr_phy_code[i]); 565 } 566 567 len += snprintf(buf + len, sizeof(buf) - len, "FIFO\t%u\t(%u%%)\n", 568 st->rxerr_fifo, 569 st->rx_all_count > 0 ? 570 st->rxerr_fifo * 100 / st->rx_all_count : 0); 571 len += snprintf(buf + len, sizeof(buf) - len, "decrypt\t%u\t(%u%%)\n", 572 st->rxerr_decrypt, 573 st->rx_all_count > 0 ? 574 st->rxerr_decrypt * 100 / st->rx_all_count : 0); 575 len += snprintf(buf + len, sizeof(buf) - len, "MIC\t%u\t(%u%%)\n", 576 st->rxerr_mic, 577 st->rx_all_count > 0 ? 578 st->rxerr_mic * 100 / st->rx_all_count : 0); 579 len += snprintf(buf + len, sizeof(buf) - len, "process\t%u\t(%u%%)\n", 580 st->rxerr_proc, 581 st->rx_all_count > 0 ? 582 st->rxerr_proc * 100 / st->rx_all_count : 0); 583 len += snprintf(buf + len, sizeof(buf) - len, "jumbo\t%u\t(%u%%)\n", 584 st->rxerr_jumbo, 585 st->rx_all_count > 0 ? 586 st->rxerr_jumbo * 100 / st->rx_all_count : 0); 587 len += snprintf(buf + len, sizeof(buf) - len, "[RX all\t%u]\n", 588 st->rx_all_count); 589 len += snprintf(buf + len, sizeof(buf) - len, "RX-all-bytes\t%u\n", 590 st->rx_bytes_count); 591 592 len += snprintf(buf + len, sizeof(buf) - len, 593 "\nTX\n---------------------\n"); 594 len += snprintf(buf + len, sizeof(buf) - len, "retry\t%u\t(%u%%)\n", 595 st->txerr_retry, 596 st->tx_all_count > 0 ? 597 st->txerr_retry * 100 / st->tx_all_count : 0); 598 len += snprintf(buf + len, sizeof(buf) - len, "FIFO\t%u\t(%u%%)\n", 599 st->txerr_fifo, 600 st->tx_all_count > 0 ? 601 st->txerr_fifo * 100 / st->tx_all_count : 0); 602 len += snprintf(buf + len, sizeof(buf) - len, "filter\t%u\t(%u%%)\n", 603 st->txerr_filt, 604 st->tx_all_count > 0 ? 605 st->txerr_filt * 100 / st->tx_all_count : 0); 606 len += snprintf(buf + len, sizeof(buf) - len, "[TX all\t%u]\n", 607 st->tx_all_count); 608 len += snprintf(buf + len, sizeof(buf) - len, "TX-all-bytes\t%u\n", 609 st->tx_bytes_count); 610 611 if (len > sizeof(buf)) 612 len = sizeof(buf); 613 614 return simple_read_from_buffer(user_buf, count, ppos, buf, len); 615 } 616 617 static ssize_t write_file_frameerrors(struct file *file, 618 const char __user *userbuf, 619 size_t count, loff_t *ppos) 620 { 621 struct ath5k_hw *ah = file->private_data; 622 struct ath5k_statistics *st = &ah->stats; 623 char buf[20]; 624 625 if (copy_from_user(buf, userbuf, min(count, sizeof(buf)))) 626 return -EFAULT; 627 628 if (strncmp(buf, "clear", 5) == 0) { 629 st->rxerr_crc = 0; 630 st->rxerr_phy = 0; 631 st->rxerr_fifo = 0; 632 st->rxerr_decrypt = 0; 633 st->rxerr_mic = 0; 634 st->rxerr_proc = 0; 635 st->rxerr_jumbo = 0; 636 st->rx_all_count = 0; 637 st->txerr_retry = 0; 638 st->txerr_fifo = 0; 639 st->txerr_filt = 0; 640 st->tx_all_count = 0; 641 printk(KERN_INFO "ath5k debug: cleared frameerrors stats\n"); 642 } 643 return count; 644 } 645 646 static const struct file_operations fops_frameerrors = { 647 .read = read_file_frameerrors, 648 .write = write_file_frameerrors, 649 .open = ath5k_debugfs_open, 650 .owner = THIS_MODULE, 651 .llseek = default_llseek, 652 }; 653 654 655 /* debugfs: ani */ 656 657 static ssize_t read_file_ani(struct file *file, char __user *user_buf, 658 size_t count, loff_t *ppos) 659 { 660 struct ath5k_hw *ah = file->private_data; 661 struct ath5k_statistics *st = &ah->stats; 662 struct ath5k_ani_state *as = &ah->ani_state; 663 664 char buf[700]; 665 unsigned int len = 0; 666 667 len += snprintf(buf + len, sizeof(buf) - len, 668 "HW has PHY error counters:\t%s\n", 669 ah->ah_capabilities.cap_has_phyerr_counters ? 670 "yes" : "no"); 671 len += snprintf(buf + len, sizeof(buf) - len, 672 "HW max spur immunity level:\t%d\n", 673 as->max_spur_level); 674 len += snprintf(buf + len, sizeof(buf) - len, 675 "\nANI state\n--------------------------------------------\n"); 676 len += snprintf(buf + len, sizeof(buf) - len, "operating mode:\t\t\t"); 677 switch (as->ani_mode) { 678 case ATH5K_ANI_MODE_OFF: 679 len += snprintf(buf + len, sizeof(buf) - len, "OFF\n"); 680 break; 681 case ATH5K_ANI_MODE_MANUAL_LOW: 682 len += snprintf(buf + len, sizeof(buf) - len, 683 "MANUAL LOW\n"); 684 break; 685 case ATH5K_ANI_MODE_MANUAL_HIGH: 686 len += snprintf(buf + len, sizeof(buf) - len, 687 "MANUAL HIGH\n"); 688 break; 689 case ATH5K_ANI_MODE_AUTO: 690 len += snprintf(buf + len, sizeof(buf) - len, "AUTO\n"); 691 break; 692 default: 693 len += snprintf(buf + len, sizeof(buf) - len, 694 "??? (not good)\n"); 695 break; 696 } 697 len += snprintf(buf + len, sizeof(buf) - len, 698 "noise immunity level:\t\t%d\n", 699 as->noise_imm_level); 700 len += snprintf(buf + len, sizeof(buf) - len, 701 "spur immunity level:\t\t%d\n", 702 as->spur_level); 703 len += snprintf(buf + len, sizeof(buf) - len, 704 "firstep level:\t\t\t%d\n", 705 as->firstep_level); 706 len += snprintf(buf + len, sizeof(buf) - len, 707 "OFDM weak signal detection:\t%s\n", 708 as->ofdm_weak_sig ? "on" : "off"); 709 len += snprintf(buf + len, sizeof(buf) - len, 710 "CCK weak signal detection:\t%s\n", 711 as->cck_weak_sig ? "on" : "off"); 712 713 len += snprintf(buf + len, sizeof(buf) - len, 714 "\nMIB INTERRUPTS:\t\t%u\n", 715 st->mib_intr); 716 len += snprintf(buf + len, sizeof(buf) - len, 717 "beacon RSSI average:\t%d\n", 718 (int)ewma_read(&ah->ah_beacon_rssi_avg)); 719 720 #define CC_PRINT(_struct, _field) \ 721 _struct._field, \ 722 _struct.cycles > 0 ? \ 723 _struct._field * 100 / _struct.cycles : 0 724 725 len += snprintf(buf + len, sizeof(buf) - len, 726 "profcnt tx\t\t%u\t(%d%%)\n", 727 CC_PRINT(as->last_cc, tx_frame)); 728 len += snprintf(buf + len, sizeof(buf) - len, 729 "profcnt rx\t\t%u\t(%d%%)\n", 730 CC_PRINT(as->last_cc, rx_frame)); 731 len += snprintf(buf + len, sizeof(buf) - len, 732 "profcnt busy\t\t%u\t(%d%%)\n", 733 CC_PRINT(as->last_cc, rx_busy)); 734 #undef CC_PRINT 735 len += snprintf(buf + len, sizeof(buf) - len, "profcnt cycles\t\t%u\n", 736 as->last_cc.cycles); 737 len += snprintf(buf + len, sizeof(buf) - len, 738 "listen time\t\t%d\tlast: %d\n", 739 as->listen_time, as->last_listen); 740 len += snprintf(buf + len, sizeof(buf) - len, 741 "OFDM errors\t\t%u\tlast: %u\tsum: %u\n", 742 as->ofdm_errors, as->last_ofdm_errors, 743 as->sum_ofdm_errors); 744 len += snprintf(buf + len, sizeof(buf) - len, 745 "CCK errors\t\t%u\tlast: %u\tsum: %u\n", 746 as->cck_errors, as->last_cck_errors, 747 as->sum_cck_errors); 748 len += snprintf(buf + len, sizeof(buf) - len, 749 "AR5K_PHYERR_CNT1\t%x\t(=%d)\n", 750 ath5k_hw_reg_read(ah, AR5K_PHYERR_CNT1), 751 ATH5K_ANI_OFDM_TRIG_HIGH - (ATH5K_PHYERR_CNT_MAX - 752 ath5k_hw_reg_read(ah, AR5K_PHYERR_CNT1))); 753 len += snprintf(buf + len, sizeof(buf) - len, 754 "AR5K_PHYERR_CNT2\t%x\t(=%d)\n", 755 ath5k_hw_reg_read(ah, AR5K_PHYERR_CNT2), 756 ATH5K_ANI_CCK_TRIG_HIGH - (ATH5K_PHYERR_CNT_MAX - 757 ath5k_hw_reg_read(ah, AR5K_PHYERR_CNT2))); 758 759 if (len > sizeof(buf)) 760 len = sizeof(buf); 761 762 return simple_read_from_buffer(user_buf, count, ppos, buf, len); 763 } 764 765 static ssize_t write_file_ani(struct file *file, 766 const char __user *userbuf, 767 size_t count, loff_t *ppos) 768 { 769 struct ath5k_hw *ah = file->private_data; 770 char buf[20]; 771 772 if (copy_from_user(buf, userbuf, min(count, sizeof(buf)))) 773 return -EFAULT; 774 775 if (strncmp(buf, "sens-low", 8) == 0) { 776 ath5k_ani_init(ah, ATH5K_ANI_MODE_MANUAL_HIGH); 777 } else if (strncmp(buf, "sens-high", 9) == 0) { 778 ath5k_ani_init(ah, ATH5K_ANI_MODE_MANUAL_LOW); 779 } else if (strncmp(buf, "ani-off", 7) == 0) { 780 ath5k_ani_init(ah, ATH5K_ANI_MODE_OFF); 781 } else if (strncmp(buf, "ani-on", 6) == 0) { 782 ath5k_ani_init(ah, ATH5K_ANI_MODE_AUTO); 783 } else if (strncmp(buf, "noise-low", 9) == 0) { 784 ath5k_ani_set_noise_immunity_level(ah, 0); 785 } else if (strncmp(buf, "noise-high", 10) == 0) { 786 ath5k_ani_set_noise_immunity_level(ah, 787 ATH5K_ANI_MAX_NOISE_IMM_LVL); 788 } else if (strncmp(buf, "spur-low", 8) == 0) { 789 ath5k_ani_set_spur_immunity_level(ah, 0); 790 } else if (strncmp(buf, "spur-high", 9) == 0) { 791 ath5k_ani_set_spur_immunity_level(ah, 792 ah->ani_state.max_spur_level); 793 } else if (strncmp(buf, "fir-low", 7) == 0) { 794 ath5k_ani_set_firstep_level(ah, 0); 795 } else if (strncmp(buf, "fir-high", 8) == 0) { 796 ath5k_ani_set_firstep_level(ah, ATH5K_ANI_MAX_FIRSTEP_LVL); 797 } else if (strncmp(buf, "ofdm-off", 8) == 0) { 798 ath5k_ani_set_ofdm_weak_signal_detection(ah, false); 799 } else if (strncmp(buf, "ofdm-on", 7) == 0) { 800 ath5k_ani_set_ofdm_weak_signal_detection(ah, true); 801 } else if (strncmp(buf, "cck-off", 7) == 0) { 802 ath5k_ani_set_cck_weak_signal_detection(ah, false); 803 } else if (strncmp(buf, "cck-on", 6) == 0) { 804 ath5k_ani_set_cck_weak_signal_detection(ah, true); 805 } 806 return count; 807 } 808 809 static const struct file_operations fops_ani = { 810 .read = read_file_ani, 811 .write = write_file_ani, 812 .open = ath5k_debugfs_open, 813 .owner = THIS_MODULE, 814 .llseek = default_llseek, 815 }; 816 817 818 /* debugfs: queues etc */ 819 820 static ssize_t read_file_queue(struct file *file, char __user *user_buf, 821 size_t count, loff_t *ppos) 822 { 823 struct ath5k_hw *ah = file->private_data; 824 char buf[700]; 825 unsigned int len = 0; 826 827 struct ath5k_txq *txq; 828 struct ath5k_buf *bf, *bf0; 829 int i, n; 830 831 len += snprintf(buf + len, sizeof(buf) - len, 832 "available txbuffers: %d\n", ah->txbuf_len); 833 834 for (i = 0; i < ARRAY_SIZE(ah->txqs); i++) { 835 txq = &ah->txqs[i]; 836 837 len += snprintf(buf + len, sizeof(buf) - len, 838 "%02d: %ssetup\n", i, txq->setup ? "" : "not "); 839 840 if (!txq->setup) 841 continue; 842 843 n = 0; 844 spin_lock_bh(&txq->lock); 845 list_for_each_entry_safe(bf, bf0, &txq->q, list) 846 n++; 847 spin_unlock_bh(&txq->lock); 848 849 len += snprintf(buf + len, sizeof(buf) - len, 850 " len: %d bufs: %d\n", txq->txq_len, n); 851 len += snprintf(buf + len, sizeof(buf) - len, 852 " stuck: %d\n", txq->txq_stuck); 853 } 854 855 if (len > sizeof(buf)) 856 len = sizeof(buf); 857 858 return simple_read_from_buffer(user_buf, count, ppos, buf, len); 859 } 860 861 static ssize_t write_file_queue(struct file *file, 862 const char __user *userbuf, 863 size_t count, loff_t *ppos) 864 { 865 struct ath5k_hw *ah = file->private_data; 866 char buf[20]; 867 868 if (copy_from_user(buf, userbuf, min(count, sizeof(buf)))) 869 return -EFAULT; 870 871 if (strncmp(buf, "start", 5) == 0) 872 ieee80211_wake_queues(ah->hw); 873 else if (strncmp(buf, "stop", 4) == 0) 874 ieee80211_stop_queues(ah->hw); 875 876 return count; 877 } 878 879 880 static const struct file_operations fops_queue = { 881 .read = read_file_queue, 882 .write = write_file_queue, 883 .open = ath5k_debugfs_open, 884 .owner = THIS_MODULE, 885 .llseek = default_llseek, 886 }; 887 888 889 void 890 ath5k_debug_init_device(struct ath5k_hw *ah) 891 { 892 struct dentry *phydir; 893 894 ah->debug.level = ath5k_debug; 895 896 phydir = debugfs_create_dir("ath5k", ah->hw->wiphy->debugfsdir); 897 if (!phydir) 898 return; 899 900 debugfs_create_file("debug", S_IWUSR | S_IRUSR, phydir, ah, 901 &fops_debug); 902 903 debugfs_create_file("registers", S_IRUSR, phydir, ah, &fops_registers); 904 905 debugfs_create_file("beacon", S_IWUSR | S_IRUSR, phydir, ah, 906 &fops_beacon); 907 908 debugfs_create_file("reset", S_IWUSR, phydir, ah, &fops_reset); 909 910 debugfs_create_file("antenna", S_IWUSR | S_IRUSR, phydir, ah, 911 &fops_antenna); 912 913 debugfs_create_file("misc", S_IRUSR, phydir, ah, &fops_misc); 914 915 debugfs_create_file("frameerrors", S_IWUSR | S_IRUSR, phydir, ah, 916 &fops_frameerrors); 917 918 debugfs_create_file("ani", S_IWUSR | S_IRUSR, phydir, ah, &fops_ani); 919 920 debugfs_create_file("queue", S_IWUSR | S_IRUSR, phydir, ah, 921 &fops_queue); 922 923 debugfs_create_bool("32khz_clock", S_IWUSR | S_IRUSR, phydir, 924 &ah->ah_use_32khz_clock); 925 } 926 927 /* functions used in other places */ 928 929 void 930 ath5k_debug_dump_bands(struct ath5k_hw *ah) 931 { 932 unsigned int b, i; 933 934 if (likely(!(ah->debug.level & ATH5K_DEBUG_DUMPBANDS))) 935 return; 936 937 BUG_ON(!ah->sbands); 938 939 for (b = 0; b < IEEE80211_NUM_BANDS; b++) { 940 struct ieee80211_supported_band *band = &ah->sbands[b]; 941 char bname[6]; 942 switch (band->band) { 943 case IEEE80211_BAND_2GHZ: 944 strcpy(bname, "2 GHz"); 945 break; 946 case IEEE80211_BAND_5GHZ: 947 strcpy(bname, "5 GHz"); 948 break; 949 default: 950 printk(KERN_DEBUG "Band not supported: %d\n", 951 band->band); 952 return; 953 } 954 printk(KERN_DEBUG "Band %s: channels %d, rates %d\n", bname, 955 band->n_channels, band->n_bitrates); 956 printk(KERN_DEBUG " channels:\n"); 957 for (i = 0; i < band->n_channels; i++) 958 printk(KERN_DEBUG " %3d %d %.4x %.4x\n", 959 ieee80211_frequency_to_channel( 960 band->channels[i].center_freq), 961 band->channels[i].center_freq, 962 band->channels[i].hw_value, 963 band->channels[i].flags); 964 printk(KERN_DEBUG " rates:\n"); 965 for (i = 0; i < band->n_bitrates; i++) 966 printk(KERN_DEBUG " %4d %.4x %.4x %.4x\n", 967 band->bitrates[i].bitrate, 968 band->bitrates[i].hw_value, 969 band->bitrates[i].flags, 970 band->bitrates[i].hw_value_short); 971 } 972 } 973 974 static inline void 975 ath5k_debug_printrxbuf(struct ath5k_buf *bf, int done, 976 struct ath5k_rx_status *rs) 977 { 978 struct ath5k_desc *ds = bf->desc; 979 struct ath5k_hw_all_rx_desc *rd = &ds->ud.ds_rx; 980 981 printk(KERN_DEBUG "R (%p %llx) %08x %08x %08x %08x %08x %08x %c\n", 982 ds, (unsigned long long)bf->daddr, 983 ds->ds_link, ds->ds_data, 984 rd->rx_ctl.rx_control_0, rd->rx_ctl.rx_control_1, 985 rd->rx_stat.rx_status_0, rd->rx_stat.rx_status_1, 986 !done ? ' ' : (rs->rs_status == 0) ? '*' : '!'); 987 } 988 989 void 990 ath5k_debug_printrxbuffs(struct ath5k_hw *ah) 991 { 992 struct ath5k_desc *ds; 993 struct ath5k_buf *bf; 994 struct ath5k_rx_status rs = {}; 995 int status; 996 997 if (likely(!(ah->debug.level & ATH5K_DEBUG_DESC))) 998 return; 999 1000 printk(KERN_DEBUG "rxdp %x, rxlink %p\n", 1001 ath5k_hw_get_rxdp(ah), ah->rxlink); 1002 1003 spin_lock_bh(&ah->rxbuflock); 1004 list_for_each_entry(bf, &ah->rxbuf, list) { 1005 ds = bf->desc; 1006 status = ah->ah_proc_rx_desc(ah, ds, &rs); 1007 if (!status) 1008 ath5k_debug_printrxbuf(bf, status == 0, &rs); 1009 } 1010 spin_unlock_bh(&ah->rxbuflock); 1011 } 1012 1013 void 1014 ath5k_debug_printtxbuf(struct ath5k_hw *ah, struct ath5k_buf *bf) 1015 { 1016 struct ath5k_desc *ds = bf->desc; 1017 struct ath5k_hw_5212_tx_desc *td = &ds->ud.ds_tx5212; 1018 struct ath5k_tx_status ts = {}; 1019 int done; 1020 1021 if (likely(!(ah->debug.level & ATH5K_DEBUG_DESC))) 1022 return; 1023 1024 done = ah->ah_proc_tx_desc(ah, bf->desc, &ts); 1025 1026 printk(KERN_DEBUG "T (%p %llx) %08x %08x %08x %08x %08x %08x %08x " 1027 "%08x %c\n", ds, (unsigned long long)bf->daddr, ds->ds_link, 1028 ds->ds_data, td->tx_ctl.tx_control_0, td->tx_ctl.tx_control_1, 1029 td->tx_ctl.tx_control_2, td->tx_ctl.tx_control_3, 1030 td->tx_stat.tx_status_0, td->tx_stat.tx_status_1, 1031 done ? ' ' : (ts.ts_status == 0) ? '*' : '!'); 1032 } 1033