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 struct dentry *ath5k_global_debugfs; 75 76 static int ath5k_debugfs_open(struct inode *inode, struct file *file) 77 { 78 file->private_data = inode->i_private; 79 return 0; 80 } 81 82 83 /* debugfs: registers */ 84 85 struct reg { 86 const char *name; 87 int addr; 88 }; 89 90 #define REG_STRUCT_INIT(r) { #r, r } 91 92 /* just a few random registers, might want to add more */ 93 static const struct reg regs[] = { 94 REG_STRUCT_INIT(AR5K_CR), 95 REG_STRUCT_INIT(AR5K_RXDP), 96 REG_STRUCT_INIT(AR5K_CFG), 97 REG_STRUCT_INIT(AR5K_IER), 98 REG_STRUCT_INIT(AR5K_BCR), 99 REG_STRUCT_INIT(AR5K_RTSD0), 100 REG_STRUCT_INIT(AR5K_RTSD1), 101 REG_STRUCT_INIT(AR5K_TXCFG), 102 REG_STRUCT_INIT(AR5K_RXCFG), 103 REG_STRUCT_INIT(AR5K_RXJLA), 104 REG_STRUCT_INIT(AR5K_MIBC), 105 REG_STRUCT_INIT(AR5K_TOPS), 106 REG_STRUCT_INIT(AR5K_RXNOFRM), 107 REG_STRUCT_INIT(AR5K_TXNOFRM), 108 REG_STRUCT_INIT(AR5K_RPGTO), 109 REG_STRUCT_INIT(AR5K_RFCNT), 110 REG_STRUCT_INIT(AR5K_MISC), 111 REG_STRUCT_INIT(AR5K_QCUDCU_CLKGT), 112 REG_STRUCT_INIT(AR5K_ISR), 113 REG_STRUCT_INIT(AR5K_PISR), 114 REG_STRUCT_INIT(AR5K_SISR0), 115 REG_STRUCT_INIT(AR5K_SISR1), 116 REG_STRUCT_INIT(AR5K_SISR2), 117 REG_STRUCT_INIT(AR5K_SISR3), 118 REG_STRUCT_INIT(AR5K_SISR4), 119 REG_STRUCT_INIT(AR5K_IMR), 120 REG_STRUCT_INIT(AR5K_PIMR), 121 REG_STRUCT_INIT(AR5K_SIMR0), 122 REG_STRUCT_INIT(AR5K_SIMR1), 123 REG_STRUCT_INIT(AR5K_SIMR2), 124 REG_STRUCT_INIT(AR5K_SIMR3), 125 REG_STRUCT_INIT(AR5K_SIMR4), 126 REG_STRUCT_INIT(AR5K_DCM_ADDR), 127 REG_STRUCT_INIT(AR5K_DCCFG), 128 REG_STRUCT_INIT(AR5K_CCFG), 129 REG_STRUCT_INIT(AR5K_CPC0), 130 REG_STRUCT_INIT(AR5K_CPC1), 131 REG_STRUCT_INIT(AR5K_CPC2), 132 REG_STRUCT_INIT(AR5K_CPC3), 133 REG_STRUCT_INIT(AR5K_CPCOVF), 134 REG_STRUCT_INIT(AR5K_RESET_CTL), 135 REG_STRUCT_INIT(AR5K_SLEEP_CTL), 136 REG_STRUCT_INIT(AR5K_INTPEND), 137 REG_STRUCT_INIT(AR5K_SFR), 138 REG_STRUCT_INIT(AR5K_PCICFG), 139 REG_STRUCT_INIT(AR5K_GPIOCR), 140 REG_STRUCT_INIT(AR5K_GPIODO), 141 REG_STRUCT_INIT(AR5K_SREV), 142 }; 143 144 static void *reg_start(struct seq_file *seq, loff_t *pos) 145 { 146 return *pos < ARRAY_SIZE(regs) ? (void *)®s[*pos] : NULL; 147 } 148 149 static void reg_stop(struct seq_file *seq, void *p) 150 { 151 /* nothing to do */ 152 } 153 154 static void *reg_next(struct seq_file *seq, void *p, loff_t *pos) 155 { 156 ++*pos; 157 return *pos < ARRAY_SIZE(regs) ? (void *)®s[*pos] : NULL; 158 } 159 160 static int reg_show(struct seq_file *seq, void *p) 161 { 162 struct ath5k_softc *sc = seq->private; 163 struct reg *r = p; 164 seq_printf(seq, "%-25s0x%08x\n", r->name, 165 ath5k_hw_reg_read(sc->ah, r->addr)); 166 return 0; 167 } 168 169 static const struct seq_operations register_seq_ops = { 170 .start = reg_start, 171 .next = reg_next, 172 .stop = reg_stop, 173 .show = reg_show 174 }; 175 176 static int open_file_registers(struct inode *inode, struct file *file) 177 { 178 struct seq_file *s; 179 int res; 180 res = seq_open(file, ®ister_seq_ops); 181 if (res == 0) { 182 s = file->private_data; 183 s->private = inode->i_private; 184 } 185 return res; 186 } 187 188 static const struct file_operations fops_registers = { 189 .open = open_file_registers, 190 .read = seq_read, 191 .llseek = seq_lseek, 192 .release = seq_release, 193 .owner = THIS_MODULE, 194 }; 195 196 197 /* debugfs: beacons */ 198 199 static ssize_t read_file_beacon(struct file *file, char __user *user_buf, 200 size_t count, loff_t *ppos) 201 { 202 struct ath5k_softc *sc = file->private_data; 203 struct ath5k_hw *ah = sc->ah; 204 char buf[500]; 205 unsigned int len = 0; 206 unsigned int v; 207 u64 tsf; 208 209 v = ath5k_hw_reg_read(sc->ah, AR5K_BEACON); 210 len += snprintf(buf+len, sizeof(buf)-len, 211 "%-24s0x%08x\tintval: %d\tTIM: 0x%x\n", 212 "AR5K_BEACON", v, v & AR5K_BEACON_PERIOD, 213 (v & AR5K_BEACON_TIM) >> AR5K_BEACON_TIM_S); 214 215 len += snprintf(buf+len, sizeof(buf)-len, "%-24s0x%08x\n", 216 "AR5K_LAST_TSTP", ath5k_hw_reg_read(sc->ah, AR5K_LAST_TSTP)); 217 218 len += snprintf(buf+len, sizeof(buf)-len, "%-24s0x%08x\n\n", 219 "AR5K_BEACON_CNT", ath5k_hw_reg_read(sc->ah, AR5K_BEACON_CNT)); 220 221 v = ath5k_hw_reg_read(sc->ah, AR5K_TIMER0); 222 len += snprintf(buf+len, sizeof(buf)-len, "%-24s0x%08x\tTU: %08x\n", 223 "AR5K_TIMER0 (TBTT)", v, v); 224 225 v = ath5k_hw_reg_read(sc->ah, AR5K_TIMER1); 226 len += snprintf(buf+len, sizeof(buf)-len, "%-24s0x%08x\tTU: %08x\n", 227 "AR5K_TIMER1 (DMA)", v, v >> 3); 228 229 v = ath5k_hw_reg_read(sc->ah, AR5K_TIMER2); 230 len += snprintf(buf+len, sizeof(buf)-len, "%-24s0x%08x\tTU: %08x\n", 231 "AR5K_TIMER2 (SWBA)", v, v >> 3); 232 233 v = ath5k_hw_reg_read(sc->ah, AR5K_TIMER3); 234 len += snprintf(buf+len, sizeof(buf)-len, "%-24s0x%08x\tTU: %08x\n", 235 "AR5K_TIMER3 (ATIM)", v, v); 236 237 tsf = ath5k_hw_get_tsf64(sc->ah); 238 len += snprintf(buf+len, sizeof(buf)-len, 239 "TSF\t\t0x%016llx\tTU: %08x\n", 240 (unsigned long long)tsf, TSF_TO_TU(tsf)); 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_softc *sc = file->private_data; 250 struct ath5k_hw *ah = sc->ah; 251 char buf[20]; 252 253 if (copy_from_user(buf, userbuf, min(count, sizeof(buf)))) 254 return -EFAULT; 255 256 if (strncmp(buf, "disable", 7) == 0) { 257 AR5K_REG_DISABLE_BITS(ah, AR5K_BEACON, AR5K_BEACON_ENABLE); 258 printk(KERN_INFO "debugfs disable beacons\n"); 259 } else if (strncmp(buf, "enable", 6) == 0) { 260 AR5K_REG_ENABLE_BITS(ah, AR5K_BEACON, AR5K_BEACON_ENABLE); 261 printk(KERN_INFO "debugfs enable beacons\n"); 262 } 263 return count; 264 } 265 266 static const struct file_operations fops_beacon = { 267 .read = read_file_beacon, 268 .write = write_file_beacon, 269 .open = ath5k_debugfs_open, 270 .owner = THIS_MODULE, 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_softc *sc = file->private_data; 281 tasklet_schedule(&sc->restq); 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 }; 290 291 292 /* debugfs: debug level */ 293 294 static const struct { 295 enum ath5k_debug_level level; 296 const char *name; 297 const char *desc; 298 } dbg_info[] = { 299 { ATH5K_DEBUG_RESET, "reset", "reset and initialization" }, 300 { ATH5K_DEBUG_INTR, "intr", "interrupt handling" }, 301 { ATH5K_DEBUG_MODE, "mode", "mode init/setup" }, 302 { ATH5K_DEBUG_XMIT, "xmit", "basic xmit operation" }, 303 { ATH5K_DEBUG_BEACON, "beacon", "beacon handling" }, 304 { ATH5K_DEBUG_CALIBRATE, "calib", "periodic calibration" }, 305 { ATH5K_DEBUG_TXPOWER, "txpower", "transmit power setting" }, 306 { ATH5K_DEBUG_LED, "led", "LED management" }, 307 { ATH5K_DEBUG_DUMP_RX, "dumprx", "print received skb content" }, 308 { ATH5K_DEBUG_DUMP_TX, "dumptx", "print transmit skb content" }, 309 { ATH5K_DEBUG_DUMPBANDS, "dumpbands", "dump bands" }, 310 { ATH5K_DEBUG_TRACE, "trace", "trace function calls" }, 311 { ATH5K_DEBUG_ANI, "ani", "adaptive noise immunity" }, 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_softc *sc = 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", sc->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 sc->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 sc->debug.level == dbg_info[i].level ? '+' : ' ', 335 dbg_info[i].level, dbg_info[i].desc); 336 337 return simple_read_from_buffer(user_buf, count, ppos, buf, len); 338 } 339 340 static ssize_t write_file_debug(struct file *file, 341 const char __user *userbuf, 342 size_t count, loff_t *ppos) 343 { 344 struct ath5k_softc *sc = file->private_data; 345 unsigned int i; 346 char buf[20]; 347 348 if (copy_from_user(buf, userbuf, min(count, sizeof(buf)))) 349 return -EFAULT; 350 351 for (i = 0; i < ARRAY_SIZE(dbg_info); i++) { 352 if (strncmp(buf, dbg_info[i].name, 353 strlen(dbg_info[i].name)) == 0) { 354 sc->debug.level ^= dbg_info[i].level; /* toggle bit */ 355 break; 356 } 357 } 358 return count; 359 } 360 361 static const struct file_operations fops_debug = { 362 .read = read_file_debug, 363 .write = write_file_debug, 364 .open = ath5k_debugfs_open, 365 .owner = THIS_MODULE, 366 }; 367 368 369 /* debugfs: antenna */ 370 371 static ssize_t read_file_antenna(struct file *file, char __user *user_buf, 372 size_t count, loff_t *ppos) 373 { 374 struct ath5k_softc *sc = file->private_data; 375 char buf[700]; 376 unsigned int len = 0; 377 unsigned int i; 378 unsigned int v; 379 380 len += snprintf(buf+len, sizeof(buf)-len, "antenna mode\t%d\n", 381 sc->ah->ah_ant_mode); 382 len += snprintf(buf+len, sizeof(buf)-len, "default antenna\t%d\n", 383 sc->ah->ah_def_ant); 384 len += snprintf(buf+len, sizeof(buf)-len, "tx antenna\t%d\n", 385 sc->ah->ah_tx_ant); 386 387 len += snprintf(buf+len, sizeof(buf)-len, "\nANTENNA\t\tRX\tTX\n"); 388 for (i = 1; i < ARRAY_SIZE(sc->stats.antenna_rx); i++) { 389 len += snprintf(buf+len, sizeof(buf)-len, 390 "[antenna %d]\t%d\t%d\n", 391 i, sc->stats.antenna_rx[i], sc->stats.antenna_tx[i]); 392 } 393 len += snprintf(buf+len, sizeof(buf)-len, "[invalid]\t%d\t%d\n", 394 sc->stats.antenna_rx[0], sc->stats.antenna_tx[0]); 395 396 v = ath5k_hw_reg_read(sc->ah, AR5K_DEFAULT_ANTENNA); 397 len += snprintf(buf+len, sizeof(buf)-len, 398 "\nAR5K_DEFAULT_ANTENNA\t0x%08x\n", v); 399 400 v = ath5k_hw_reg_read(sc->ah, AR5K_STA_ID1); 401 len += snprintf(buf+len, sizeof(buf)-len, 402 "AR5K_STA_ID1_DEFAULT_ANTENNA\t%d\n", 403 (v & AR5K_STA_ID1_DEFAULT_ANTENNA) != 0); 404 len += snprintf(buf+len, sizeof(buf)-len, 405 "AR5K_STA_ID1_DESC_ANTENNA\t%d\n", 406 (v & AR5K_STA_ID1_DESC_ANTENNA) != 0); 407 len += snprintf(buf+len, sizeof(buf)-len, 408 "AR5K_STA_ID1_RTS_DEF_ANTENNA\t%d\n", 409 (v & AR5K_STA_ID1_RTS_DEF_ANTENNA) != 0); 410 len += snprintf(buf+len, sizeof(buf)-len, 411 "AR5K_STA_ID1_SELFGEN_DEF_ANT\t%d\n", 412 (v & AR5K_STA_ID1_SELFGEN_DEF_ANT) != 0); 413 414 v = ath5k_hw_reg_read(sc->ah, AR5K_PHY_AGCCTL); 415 len += snprintf(buf+len, sizeof(buf)-len, 416 "\nAR5K_PHY_AGCCTL_OFDM_DIV_DIS\t%d\n", 417 (v & AR5K_PHY_AGCCTL_OFDM_DIV_DIS) != 0); 418 419 v = ath5k_hw_reg_read(sc->ah, AR5K_PHY_RESTART); 420 len += snprintf(buf+len, sizeof(buf)-len, 421 "AR5K_PHY_RESTART_DIV_GC\t\t%x\n", 422 (v & AR5K_PHY_RESTART_DIV_GC) >> AR5K_PHY_RESTART_DIV_GC_S); 423 424 v = ath5k_hw_reg_read(sc->ah, AR5K_PHY_FAST_ANT_DIV); 425 len += snprintf(buf+len, sizeof(buf)-len, 426 "AR5K_PHY_FAST_ANT_DIV_EN\t%d\n", 427 (v & AR5K_PHY_FAST_ANT_DIV_EN) != 0); 428 429 return simple_read_from_buffer(user_buf, count, ppos, buf, len); 430 } 431 432 static ssize_t write_file_antenna(struct file *file, 433 const char __user *userbuf, 434 size_t count, loff_t *ppos) 435 { 436 struct ath5k_softc *sc = file->private_data; 437 unsigned int i; 438 char buf[20]; 439 440 if (copy_from_user(buf, userbuf, min(count, sizeof(buf)))) 441 return -EFAULT; 442 443 if (strncmp(buf, "diversity", 9) == 0) { 444 ath5k_hw_set_antenna_mode(sc->ah, AR5K_ANTMODE_DEFAULT); 445 printk(KERN_INFO "ath5k debug: enable diversity\n"); 446 } else if (strncmp(buf, "fixed-a", 7) == 0) { 447 ath5k_hw_set_antenna_mode(sc->ah, AR5K_ANTMODE_FIXED_A); 448 printk(KERN_INFO "ath5k debugfs: fixed antenna A\n"); 449 } else if (strncmp(buf, "fixed-b", 7) == 0) { 450 ath5k_hw_set_antenna_mode(sc->ah, AR5K_ANTMODE_FIXED_B); 451 printk(KERN_INFO "ath5k debug: fixed antenna B\n"); 452 } else if (strncmp(buf, "clear", 5) == 0) { 453 for (i = 0; i < ARRAY_SIZE(sc->stats.antenna_rx); i++) { 454 sc->stats.antenna_rx[i] = 0; 455 sc->stats.antenna_tx[i] = 0; 456 } 457 printk(KERN_INFO "ath5k debug: cleared antenna stats\n"); 458 } 459 return count; 460 } 461 462 static const struct file_operations fops_antenna = { 463 .read = read_file_antenna, 464 .write = write_file_antenna, 465 .open = ath5k_debugfs_open, 466 .owner = THIS_MODULE, 467 }; 468 469 470 /* debugfs: frameerrors */ 471 472 static ssize_t read_file_frameerrors(struct file *file, char __user *user_buf, 473 size_t count, loff_t *ppos) 474 { 475 struct ath5k_softc *sc = file->private_data; 476 struct ath5k_statistics *st = &sc->stats; 477 char buf[700]; 478 unsigned int len = 0; 479 int i; 480 481 len += snprintf(buf+len, sizeof(buf)-len, 482 "RX\n---------------------\n"); 483 len += snprintf(buf+len, sizeof(buf)-len, "CRC\t%d\t(%d%%)\n", 484 st->rxerr_crc, 485 st->rx_all_count > 0 ? 486 st->rxerr_crc*100/st->rx_all_count : 0); 487 len += snprintf(buf+len, sizeof(buf)-len, "PHY\t%d\t(%d%%)\n", 488 st->rxerr_phy, 489 st->rx_all_count > 0 ? 490 st->rxerr_phy*100/st->rx_all_count : 0); 491 for (i = 0; i < 32; i++) { 492 if (st->rxerr_phy_code[i]) 493 len += snprintf(buf+len, sizeof(buf)-len, 494 " phy_err[%d]\t%d\n", 495 i, st->rxerr_phy_code[i]); 496 } 497 498 len += snprintf(buf+len, sizeof(buf)-len, "FIFO\t%d\t(%d%%)\n", 499 st->rxerr_fifo, 500 st->rx_all_count > 0 ? 501 st->rxerr_fifo*100/st->rx_all_count : 0); 502 len += snprintf(buf+len, sizeof(buf)-len, "decrypt\t%d\t(%d%%)\n", 503 st->rxerr_decrypt, 504 st->rx_all_count > 0 ? 505 st->rxerr_decrypt*100/st->rx_all_count : 0); 506 len += snprintf(buf+len, sizeof(buf)-len, "MIC\t%d\t(%d%%)\n", 507 st->rxerr_mic, 508 st->rx_all_count > 0 ? 509 st->rxerr_mic*100/st->rx_all_count : 0); 510 len += snprintf(buf+len, sizeof(buf)-len, "process\t%d\t(%d%%)\n", 511 st->rxerr_proc, 512 st->rx_all_count > 0 ? 513 st->rxerr_proc*100/st->rx_all_count : 0); 514 len += snprintf(buf+len, sizeof(buf)-len, "jumbo\t%d\t(%d%%)\n", 515 st->rxerr_jumbo, 516 st->rx_all_count > 0 ? 517 st->rxerr_jumbo*100/st->rx_all_count : 0); 518 len += snprintf(buf+len, sizeof(buf)-len, "[RX all\t%d]\n", 519 st->rx_all_count); 520 521 len += snprintf(buf+len, sizeof(buf)-len, 522 "\nTX\n---------------------\n"); 523 len += snprintf(buf+len, sizeof(buf)-len, "retry\t%d\t(%d%%)\n", 524 st->txerr_retry, 525 st->tx_all_count > 0 ? 526 st->txerr_retry*100/st->tx_all_count : 0); 527 len += snprintf(buf+len, sizeof(buf)-len, "FIFO\t%d\t(%d%%)\n", 528 st->txerr_fifo, 529 st->tx_all_count > 0 ? 530 st->txerr_fifo*100/st->tx_all_count : 0); 531 len += snprintf(buf+len, sizeof(buf)-len, "filter\t%d\t(%d%%)\n", 532 st->txerr_filt, 533 st->tx_all_count > 0 ? 534 st->txerr_filt*100/st->tx_all_count : 0); 535 len += snprintf(buf+len, sizeof(buf)-len, "[TX all\t%d]\n", 536 st->tx_all_count); 537 538 return simple_read_from_buffer(user_buf, count, ppos, buf, len); 539 } 540 541 static ssize_t write_file_frameerrors(struct file *file, 542 const char __user *userbuf, 543 size_t count, loff_t *ppos) 544 { 545 struct ath5k_softc *sc = file->private_data; 546 struct ath5k_statistics *st = &sc->stats; 547 char buf[20]; 548 549 if (copy_from_user(buf, userbuf, min(count, sizeof(buf)))) 550 return -EFAULT; 551 552 if (strncmp(buf, "clear", 5) == 0) { 553 st->rxerr_crc = 0; 554 st->rxerr_phy = 0; 555 st->rxerr_fifo = 0; 556 st->rxerr_decrypt = 0; 557 st->rxerr_mic = 0; 558 st->rxerr_proc = 0; 559 st->rxerr_jumbo = 0; 560 st->rx_all_count = 0; 561 st->txerr_retry = 0; 562 st->txerr_fifo = 0; 563 st->txerr_filt = 0; 564 st->tx_all_count = 0; 565 printk(KERN_INFO "ath5k debug: cleared frameerrors stats\n"); 566 } 567 return count; 568 } 569 570 static const struct file_operations fops_frameerrors = { 571 .read = read_file_frameerrors, 572 .write = write_file_frameerrors, 573 .open = ath5k_debugfs_open, 574 .owner = THIS_MODULE, 575 }; 576 577 578 /* debugfs: ani */ 579 580 static ssize_t read_file_ani(struct file *file, char __user *user_buf, 581 size_t count, loff_t *ppos) 582 { 583 struct ath5k_softc *sc = file->private_data; 584 struct ath5k_statistics *st = &sc->stats; 585 struct ath5k_ani_state *as = &sc->ani_state; 586 587 char buf[700]; 588 unsigned int len = 0; 589 590 len += snprintf(buf+len, sizeof(buf)-len, 591 "HW has PHY error counters:\t%s\n", 592 sc->ah->ah_capabilities.cap_has_phyerr_counters ? 593 "yes" : "no"); 594 len += snprintf(buf+len, sizeof(buf)-len, 595 "HW max spur immunity level:\t%d\n", 596 as->max_spur_level); 597 len += snprintf(buf+len, sizeof(buf)-len, 598 "\nANI state\n--------------------------------------------\n"); 599 len += snprintf(buf+len, sizeof(buf)-len, "operating mode:\t\t\t"); 600 switch (as->ani_mode) { 601 case ATH5K_ANI_MODE_OFF: 602 len += snprintf(buf+len, sizeof(buf)-len, "OFF\n"); 603 break; 604 case ATH5K_ANI_MODE_MANUAL_LOW: 605 len += snprintf(buf+len, sizeof(buf)-len, 606 "MANUAL LOW\n"); 607 break; 608 case ATH5K_ANI_MODE_MANUAL_HIGH: 609 len += snprintf(buf+len, sizeof(buf)-len, 610 "MANUAL HIGH\n"); 611 break; 612 case ATH5K_ANI_MODE_AUTO: 613 len += snprintf(buf+len, sizeof(buf)-len, "AUTO\n"); 614 break; 615 default: 616 len += snprintf(buf+len, sizeof(buf)-len, 617 "??? (not good)\n"); 618 break; 619 } 620 len += snprintf(buf+len, sizeof(buf)-len, 621 "noise immunity level:\t\t%d\n", 622 as->noise_imm_level); 623 len += snprintf(buf+len, sizeof(buf)-len, 624 "spur immunity level:\t\t%d\n", 625 as->spur_level); 626 len += snprintf(buf+len, sizeof(buf)-len, "firstep level:\t\t\t%d\n", 627 as->firstep_level); 628 len += snprintf(buf+len, sizeof(buf)-len, 629 "OFDM weak signal detection:\t%s\n", 630 as->ofdm_weak_sig ? "on" : "off"); 631 len += snprintf(buf+len, sizeof(buf)-len, 632 "CCK weak signal detection:\t%s\n", 633 as->cck_weak_sig ? "on" : "off"); 634 635 len += snprintf(buf+len, sizeof(buf)-len, 636 "\nMIB INTERRUPTS:\t\t%u\n", 637 st->mib_intr); 638 len += snprintf(buf+len, sizeof(buf)-len, 639 "beacon RSSI average:\t%d\n", 640 sc->ah->ah_beacon_rssi_avg.avg); 641 len += snprintf(buf+len, sizeof(buf)-len, "profcnt tx\t\t%u\t(%d%%)\n", 642 as->pfc_tx, 643 as->pfc_cycles > 0 ? 644 as->pfc_tx*100/as->pfc_cycles : 0); 645 len += snprintf(buf+len, sizeof(buf)-len, "profcnt rx\t\t%u\t(%d%%)\n", 646 as->pfc_rx, 647 as->pfc_cycles > 0 ? 648 as->pfc_rx*100/as->pfc_cycles : 0); 649 len += snprintf(buf+len, sizeof(buf)-len, "profcnt busy\t\t%u\t(%d%%)\n", 650 as->pfc_busy, 651 as->pfc_cycles > 0 ? 652 as->pfc_busy*100/as->pfc_cycles : 0); 653 len += snprintf(buf+len, sizeof(buf)-len, "profcnt cycles\t\t%u\n", 654 as->pfc_cycles); 655 len += snprintf(buf+len, sizeof(buf)-len, 656 "listen time\t\t%d\tlast: %d\n", 657 as->listen_time, as->last_listen); 658 len += snprintf(buf+len, sizeof(buf)-len, 659 "OFDM errors\t\t%u\tlast: %u\tsum: %u\n", 660 as->ofdm_errors, as->last_ofdm_errors, 661 as->sum_ofdm_errors); 662 len += snprintf(buf+len, sizeof(buf)-len, 663 "CCK errors\t\t%u\tlast: %u\tsum: %u\n", 664 as->cck_errors, as->last_cck_errors, 665 as->sum_cck_errors); 666 len += snprintf(buf+len, sizeof(buf)-len, 667 "AR5K_PHYERR_CNT1\t%x\t(=%d)\n", 668 ath5k_hw_reg_read(sc->ah, AR5K_PHYERR_CNT1), 669 ATH5K_ANI_OFDM_TRIG_HIGH - (ATH5K_PHYERR_CNT_MAX - 670 ath5k_hw_reg_read(sc->ah, AR5K_PHYERR_CNT1))); 671 len += snprintf(buf+len, sizeof(buf)-len, 672 "AR5K_PHYERR_CNT2\t%x\t(=%d)\n", 673 ath5k_hw_reg_read(sc->ah, AR5K_PHYERR_CNT2), 674 ATH5K_ANI_CCK_TRIG_HIGH - (ATH5K_PHYERR_CNT_MAX - 675 ath5k_hw_reg_read(sc->ah, AR5K_PHYERR_CNT2))); 676 677 return simple_read_from_buffer(user_buf, count, ppos, buf, len); 678 } 679 680 static ssize_t write_file_ani(struct file *file, 681 const char __user *userbuf, 682 size_t count, loff_t *ppos) 683 { 684 struct ath5k_softc *sc = file->private_data; 685 char buf[20]; 686 687 if (copy_from_user(buf, userbuf, min(count, sizeof(buf)))) 688 return -EFAULT; 689 690 if (strncmp(buf, "sens-low", 8) == 0) { 691 ath5k_ani_init(sc->ah, ATH5K_ANI_MODE_MANUAL_HIGH); 692 } else if (strncmp(buf, "sens-high", 9) == 0) { 693 ath5k_ani_init(sc->ah, ATH5K_ANI_MODE_MANUAL_LOW); 694 } else if (strncmp(buf, "ani-off", 7) == 0) { 695 ath5k_ani_init(sc->ah, ATH5K_ANI_MODE_OFF); 696 } else if (strncmp(buf, "ani-on", 6) == 0) { 697 ath5k_ani_init(sc->ah, ATH5K_ANI_MODE_AUTO); 698 } else if (strncmp(buf, "noise-low", 9) == 0) { 699 ath5k_ani_set_noise_immunity_level(sc->ah, 0); 700 } else if (strncmp(buf, "noise-high", 10) == 0) { 701 ath5k_ani_set_noise_immunity_level(sc->ah, 702 ATH5K_ANI_MAX_NOISE_IMM_LVL); 703 } else if (strncmp(buf, "spur-low", 8) == 0) { 704 ath5k_ani_set_spur_immunity_level(sc->ah, 0); 705 } else if (strncmp(buf, "spur-high", 9) == 0) { 706 ath5k_ani_set_spur_immunity_level(sc->ah, 707 sc->ani_state.max_spur_level); 708 } else if (strncmp(buf, "fir-low", 7) == 0) { 709 ath5k_ani_set_firstep_level(sc->ah, 0); 710 } else if (strncmp(buf, "fir-high", 8) == 0) { 711 ath5k_ani_set_firstep_level(sc->ah, ATH5K_ANI_MAX_FIRSTEP_LVL); 712 } else if (strncmp(buf, "ofdm-off", 8) == 0) { 713 ath5k_ani_set_ofdm_weak_signal_detection(sc->ah, false); 714 } else if (strncmp(buf, "ofdm-on", 7) == 0) { 715 ath5k_ani_set_ofdm_weak_signal_detection(sc->ah, true); 716 } else if (strncmp(buf, "cck-off", 7) == 0) { 717 ath5k_ani_set_cck_weak_signal_detection(sc->ah, false); 718 } else if (strncmp(buf, "cck-on", 6) == 0) { 719 ath5k_ani_set_cck_weak_signal_detection(sc->ah, true); 720 } 721 return count; 722 } 723 724 static const struct file_operations fops_ani = { 725 .read = read_file_ani, 726 .write = write_file_ani, 727 .open = ath5k_debugfs_open, 728 .owner = THIS_MODULE, 729 }; 730 731 732 /* init */ 733 734 void 735 ath5k_debug_init(void) 736 { 737 ath5k_global_debugfs = debugfs_create_dir("ath5k", NULL); 738 } 739 740 void 741 ath5k_debug_init_device(struct ath5k_softc *sc) 742 { 743 sc->debug.level = ath5k_debug; 744 745 sc->debug.debugfs_phydir = debugfs_create_dir(wiphy_name(sc->hw->wiphy), 746 ath5k_global_debugfs); 747 748 sc->debug.debugfs_debug = debugfs_create_file("debug", 749 S_IWUSR | S_IRUSR, 750 sc->debug.debugfs_phydir, sc, &fops_debug); 751 752 sc->debug.debugfs_registers = debugfs_create_file("registers", S_IRUSR, 753 sc->debug.debugfs_phydir, sc, &fops_registers); 754 755 sc->debug.debugfs_beacon = debugfs_create_file("beacon", 756 S_IWUSR | S_IRUSR, 757 sc->debug.debugfs_phydir, sc, &fops_beacon); 758 759 sc->debug.debugfs_reset = debugfs_create_file("reset", S_IWUSR, 760 sc->debug.debugfs_phydir, sc, &fops_reset); 761 762 sc->debug.debugfs_antenna = debugfs_create_file("antenna", 763 S_IWUSR | S_IRUSR, 764 sc->debug.debugfs_phydir, sc, &fops_antenna); 765 766 sc->debug.debugfs_frameerrors = debugfs_create_file("frameerrors", 767 S_IWUSR | S_IRUSR, 768 sc->debug.debugfs_phydir, sc, 769 &fops_frameerrors); 770 771 sc->debug.debugfs_ani = debugfs_create_file("ani", 772 S_IWUSR | S_IRUSR, 773 sc->debug.debugfs_phydir, sc, 774 &fops_ani); 775 } 776 777 void 778 ath5k_debug_finish(void) 779 { 780 debugfs_remove(ath5k_global_debugfs); 781 } 782 783 void 784 ath5k_debug_finish_device(struct ath5k_softc *sc) 785 { 786 debugfs_remove(sc->debug.debugfs_debug); 787 debugfs_remove(sc->debug.debugfs_registers); 788 debugfs_remove(sc->debug.debugfs_beacon); 789 debugfs_remove(sc->debug.debugfs_reset); 790 debugfs_remove(sc->debug.debugfs_antenna); 791 debugfs_remove(sc->debug.debugfs_frameerrors); 792 debugfs_remove(sc->debug.debugfs_ani); 793 debugfs_remove(sc->debug.debugfs_phydir); 794 } 795 796 797 /* functions used in other places */ 798 799 void 800 ath5k_debug_dump_bands(struct ath5k_softc *sc) 801 { 802 unsigned int b, i; 803 804 if (likely(!(sc->debug.level & ATH5K_DEBUG_DUMPBANDS))) 805 return; 806 807 BUG_ON(!sc->sbands); 808 809 for (b = 0; b < IEEE80211_NUM_BANDS; b++) { 810 struct ieee80211_supported_band *band = &sc->sbands[b]; 811 char bname[6]; 812 switch (band->band) { 813 case IEEE80211_BAND_2GHZ: 814 strcpy(bname, "2 GHz"); 815 break; 816 case IEEE80211_BAND_5GHZ: 817 strcpy(bname, "5 GHz"); 818 break; 819 default: 820 printk(KERN_DEBUG "Band not supported: %d\n", 821 band->band); 822 return; 823 } 824 printk(KERN_DEBUG "Band %s: channels %d, rates %d\n", bname, 825 band->n_channels, band->n_bitrates); 826 printk(KERN_DEBUG " channels:\n"); 827 for (i = 0; i < band->n_channels; i++) 828 printk(KERN_DEBUG " %3d %d %.4x %.4x\n", 829 ieee80211_frequency_to_channel( 830 band->channels[i].center_freq), 831 band->channels[i].center_freq, 832 band->channels[i].hw_value, 833 band->channels[i].flags); 834 printk(KERN_DEBUG " rates:\n"); 835 for (i = 0; i < band->n_bitrates; i++) 836 printk(KERN_DEBUG " %4d %.4x %.4x %.4x\n", 837 band->bitrates[i].bitrate, 838 band->bitrates[i].hw_value, 839 band->bitrates[i].flags, 840 band->bitrates[i].hw_value_short); 841 } 842 } 843 844 static inline void 845 ath5k_debug_printrxbuf(struct ath5k_buf *bf, int done, 846 struct ath5k_rx_status *rs) 847 { 848 struct ath5k_desc *ds = bf->desc; 849 struct ath5k_hw_all_rx_desc *rd = &ds->ud.ds_rx; 850 851 printk(KERN_DEBUG "R (%p %llx) %08x %08x %08x %08x %08x %08x %c\n", 852 ds, (unsigned long long)bf->daddr, 853 ds->ds_link, ds->ds_data, 854 rd->rx_ctl.rx_control_0, rd->rx_ctl.rx_control_1, 855 rd->u.rx_stat.rx_status_0, rd->u.rx_stat.rx_status_0, 856 !done ? ' ' : (rs->rs_status == 0) ? '*' : '!'); 857 } 858 859 void 860 ath5k_debug_printrxbuffs(struct ath5k_softc *sc, struct ath5k_hw *ah) 861 { 862 struct ath5k_desc *ds; 863 struct ath5k_buf *bf; 864 struct ath5k_rx_status rs = {}; 865 int status; 866 867 if (likely(!(sc->debug.level & ATH5K_DEBUG_RESET))) 868 return; 869 870 printk(KERN_DEBUG "rx queue %x, link %p\n", 871 ath5k_hw_get_rxdp(ah), sc->rxlink); 872 873 spin_lock_bh(&sc->rxbuflock); 874 list_for_each_entry(bf, &sc->rxbuf, list) { 875 ds = bf->desc; 876 status = ah->ah_proc_rx_desc(ah, ds, &rs); 877 if (!status) 878 ath5k_debug_printrxbuf(bf, status == 0, &rs); 879 } 880 spin_unlock_bh(&sc->rxbuflock); 881 } 882 883 void 884 ath5k_debug_dump_skb(struct ath5k_softc *sc, 885 struct sk_buff *skb, const char *prefix, int tx) 886 { 887 char buf[16]; 888 889 if (likely(!((tx && (sc->debug.level & ATH5K_DEBUG_DUMP_TX)) || 890 (!tx && (sc->debug.level & ATH5K_DEBUG_DUMP_RX))))) 891 return; 892 893 snprintf(buf, sizeof(buf), "%s %s", wiphy_name(sc->hw->wiphy), prefix); 894 895 print_hex_dump_bytes(buf, DUMP_PREFIX_NONE, skb->data, 896 min(200U, skb->len)); 897 898 printk(KERN_DEBUG "\n"); 899 } 900 901 void 902 ath5k_debug_printtxbuf(struct ath5k_softc *sc, struct ath5k_buf *bf) 903 { 904 struct ath5k_desc *ds = bf->desc; 905 struct ath5k_hw_5212_tx_desc *td = &ds->ud.ds_tx5212; 906 struct ath5k_tx_status ts = {}; 907 int done; 908 909 if (likely(!(sc->debug.level & ATH5K_DEBUG_RESET))) 910 return; 911 912 done = sc->ah->ah_proc_tx_desc(sc->ah, bf->desc, &ts); 913 914 printk(KERN_DEBUG "T (%p %llx) %08x %08x %08x %08x %08x %08x %08x " 915 "%08x %c\n", ds, (unsigned long long)bf->daddr, ds->ds_link, 916 ds->ds_data, td->tx_ctl.tx_control_0, td->tx_ctl.tx_control_1, 917 td->tx_ctl.tx_control_2, td->tx_ctl.tx_control_3, 918 td->tx_stat.tx_status_0, td->tx_stat.tx_status_1, 919 done ? ' ' : (ts.ts_status == 0) ? '*' : '!'); 920 } 921 922 #endif /* ifdef CONFIG_ATH5K_DEBUG */ 923