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 if (len > sizeof(buf)) 243 len = sizeof(buf); 244 245 return simple_read_from_buffer(user_buf, count, ppos, buf, len); 246 } 247 248 static ssize_t write_file_beacon(struct file *file, 249 const char __user *userbuf, 250 size_t count, loff_t *ppos) 251 { 252 struct ath5k_softc *sc = file->private_data; 253 struct ath5k_hw *ah = sc->ah; 254 char buf[20]; 255 256 if (copy_from_user(buf, userbuf, min(count, sizeof(buf)))) 257 return -EFAULT; 258 259 if (strncmp(buf, "disable", 7) == 0) { 260 AR5K_REG_DISABLE_BITS(ah, AR5K_BEACON, AR5K_BEACON_ENABLE); 261 printk(KERN_INFO "debugfs disable beacons\n"); 262 } else if (strncmp(buf, "enable", 6) == 0) { 263 AR5K_REG_ENABLE_BITS(ah, AR5K_BEACON, AR5K_BEACON_ENABLE); 264 printk(KERN_INFO "debugfs enable beacons\n"); 265 } 266 return count; 267 } 268 269 static const struct file_operations fops_beacon = { 270 .read = read_file_beacon, 271 .write = write_file_beacon, 272 .open = ath5k_debugfs_open, 273 .owner = THIS_MODULE, 274 .llseek = default_llseek, 275 }; 276 277 278 /* debugfs: reset */ 279 280 static ssize_t write_file_reset(struct file *file, 281 const char __user *userbuf, 282 size_t count, loff_t *ppos) 283 { 284 struct ath5k_softc *sc = file->private_data; 285 ATH5K_DBG(sc, ATH5K_DEBUG_RESET, "debug file triggered reset\n"); 286 ieee80211_queue_work(sc->hw, &sc->reset_work); 287 return count; 288 } 289 290 static const struct file_operations fops_reset = { 291 .write = write_file_reset, 292 .open = ath5k_debugfs_open, 293 .owner = THIS_MODULE, 294 .llseek = noop_llseek, 295 }; 296 297 298 /* debugfs: debug level */ 299 300 static const struct { 301 enum ath5k_debug_level level; 302 const char *name; 303 const char *desc; 304 } dbg_info[] = { 305 { ATH5K_DEBUG_RESET, "reset", "reset and initialization" }, 306 { ATH5K_DEBUG_INTR, "intr", "interrupt handling" }, 307 { ATH5K_DEBUG_MODE, "mode", "mode init/setup" }, 308 { ATH5K_DEBUG_XMIT, "xmit", "basic xmit operation" }, 309 { ATH5K_DEBUG_BEACON, "beacon", "beacon handling" }, 310 { ATH5K_DEBUG_CALIBRATE, "calib", "periodic calibration" }, 311 { ATH5K_DEBUG_TXPOWER, "txpower", "transmit power setting" }, 312 { ATH5K_DEBUG_LED, "led", "LED management" }, 313 { ATH5K_DEBUG_DUMP_RX, "dumprx", "print received skb content" }, 314 { ATH5K_DEBUG_DUMP_TX, "dumptx", "print transmit skb content" }, 315 { ATH5K_DEBUG_DUMPBANDS, "dumpbands", "dump bands" }, 316 { ATH5K_DEBUG_ANI, "ani", "adaptive noise immunity" }, 317 { ATH5K_DEBUG_ANY, "all", "show all debug levels" }, 318 }; 319 320 static ssize_t read_file_debug(struct file *file, char __user *user_buf, 321 size_t count, loff_t *ppos) 322 { 323 struct ath5k_softc *sc = file->private_data; 324 char buf[700]; 325 unsigned int len = 0; 326 unsigned int i; 327 328 len += snprintf(buf+len, sizeof(buf)-len, 329 "DEBUG LEVEL: 0x%08x\n\n", sc->debug.level); 330 331 for (i = 0; i < ARRAY_SIZE(dbg_info) - 1; i++) { 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 len += snprintf(buf+len, sizeof(buf)-len, 338 "%10s %c 0x%08x - %s\n", dbg_info[i].name, 339 sc->debug.level == dbg_info[i].level ? '+' : ' ', 340 dbg_info[i].level, dbg_info[i].desc); 341 342 if (len > sizeof(buf)) 343 len = sizeof(buf); 344 345 return simple_read_from_buffer(user_buf, count, ppos, buf, len); 346 } 347 348 static ssize_t write_file_debug(struct file *file, 349 const char __user *userbuf, 350 size_t count, loff_t *ppos) 351 { 352 struct ath5k_softc *sc = file->private_data; 353 unsigned int i; 354 char buf[20]; 355 356 if (copy_from_user(buf, userbuf, min(count, sizeof(buf)))) 357 return -EFAULT; 358 359 for (i = 0; i < ARRAY_SIZE(dbg_info); i++) { 360 if (strncmp(buf, dbg_info[i].name, 361 strlen(dbg_info[i].name)) == 0) { 362 sc->debug.level ^= dbg_info[i].level; /* toggle bit */ 363 break; 364 } 365 } 366 return count; 367 } 368 369 static const struct file_operations fops_debug = { 370 .read = read_file_debug, 371 .write = write_file_debug, 372 .open = ath5k_debugfs_open, 373 .owner = THIS_MODULE, 374 .llseek = default_llseek, 375 }; 376 377 378 /* debugfs: antenna */ 379 380 static ssize_t read_file_antenna(struct file *file, char __user *user_buf, 381 size_t count, loff_t *ppos) 382 { 383 struct ath5k_softc *sc = file->private_data; 384 char buf[700]; 385 unsigned int len = 0; 386 unsigned int i; 387 unsigned int v; 388 389 len += snprintf(buf+len, sizeof(buf)-len, "antenna mode\t%d\n", 390 sc->ah->ah_ant_mode); 391 len += snprintf(buf+len, sizeof(buf)-len, "default antenna\t%d\n", 392 sc->ah->ah_def_ant); 393 len += snprintf(buf+len, sizeof(buf)-len, "tx antenna\t%d\n", 394 sc->ah->ah_tx_ant); 395 396 len += snprintf(buf+len, sizeof(buf)-len, "\nANTENNA\t\tRX\tTX\n"); 397 for (i = 1; i < ARRAY_SIZE(sc->stats.antenna_rx); i++) { 398 len += snprintf(buf+len, sizeof(buf)-len, 399 "[antenna %d]\t%d\t%d\n", 400 i, sc->stats.antenna_rx[i], sc->stats.antenna_tx[i]); 401 } 402 len += snprintf(buf+len, sizeof(buf)-len, "[invalid]\t%d\t%d\n", 403 sc->stats.antenna_rx[0], sc->stats.antenna_tx[0]); 404 405 v = ath5k_hw_reg_read(sc->ah, AR5K_DEFAULT_ANTENNA); 406 len += snprintf(buf+len, sizeof(buf)-len, 407 "\nAR5K_DEFAULT_ANTENNA\t0x%08x\n", v); 408 409 v = ath5k_hw_reg_read(sc->ah, AR5K_STA_ID1); 410 len += snprintf(buf+len, sizeof(buf)-len, 411 "AR5K_STA_ID1_DEFAULT_ANTENNA\t%d\n", 412 (v & AR5K_STA_ID1_DEFAULT_ANTENNA) != 0); 413 len += snprintf(buf+len, sizeof(buf)-len, 414 "AR5K_STA_ID1_DESC_ANTENNA\t%d\n", 415 (v & AR5K_STA_ID1_DESC_ANTENNA) != 0); 416 len += snprintf(buf+len, sizeof(buf)-len, 417 "AR5K_STA_ID1_RTS_DEF_ANTENNA\t%d\n", 418 (v & AR5K_STA_ID1_RTS_DEF_ANTENNA) != 0); 419 len += snprintf(buf+len, sizeof(buf)-len, 420 "AR5K_STA_ID1_SELFGEN_DEF_ANT\t%d\n", 421 (v & AR5K_STA_ID1_SELFGEN_DEF_ANT) != 0); 422 423 v = ath5k_hw_reg_read(sc->ah, AR5K_PHY_AGCCTL); 424 len += snprintf(buf+len, sizeof(buf)-len, 425 "\nAR5K_PHY_AGCCTL_OFDM_DIV_DIS\t%d\n", 426 (v & AR5K_PHY_AGCCTL_OFDM_DIV_DIS) != 0); 427 428 v = ath5k_hw_reg_read(sc->ah, AR5K_PHY_RESTART); 429 len += snprintf(buf+len, sizeof(buf)-len, 430 "AR5K_PHY_RESTART_DIV_GC\t\t%x\n", 431 (v & AR5K_PHY_RESTART_DIV_GC) >> AR5K_PHY_RESTART_DIV_GC_S); 432 433 v = ath5k_hw_reg_read(sc->ah, AR5K_PHY_FAST_ANT_DIV); 434 len += snprintf(buf+len, sizeof(buf)-len, 435 "AR5K_PHY_FAST_ANT_DIV_EN\t%d\n", 436 (v & AR5K_PHY_FAST_ANT_DIV_EN) != 0); 437 438 v = ath5k_hw_reg_read(sc->ah, AR5K_PHY_ANT_SWITCH_TABLE_0); 439 len += snprintf(buf+len, sizeof(buf)-len, 440 "\nAR5K_PHY_ANT_SWITCH_TABLE_0\t0x%08x\n", v); 441 v = ath5k_hw_reg_read(sc->ah, AR5K_PHY_ANT_SWITCH_TABLE_1); 442 len += snprintf(buf+len, sizeof(buf)-len, 443 "AR5K_PHY_ANT_SWITCH_TABLE_1\t0x%08x\n", v); 444 445 if (len > sizeof(buf)) 446 len = sizeof(buf); 447 448 return simple_read_from_buffer(user_buf, count, ppos, buf, len); 449 } 450 451 static ssize_t write_file_antenna(struct file *file, 452 const char __user *userbuf, 453 size_t count, loff_t *ppos) 454 { 455 struct ath5k_softc *sc = file->private_data; 456 unsigned int i; 457 char buf[20]; 458 459 if (copy_from_user(buf, userbuf, min(count, sizeof(buf)))) 460 return -EFAULT; 461 462 if (strncmp(buf, "diversity", 9) == 0) { 463 ath5k_hw_set_antenna_mode(sc->ah, AR5K_ANTMODE_DEFAULT); 464 printk(KERN_INFO "ath5k debug: enable diversity\n"); 465 } else if (strncmp(buf, "fixed-a", 7) == 0) { 466 ath5k_hw_set_antenna_mode(sc->ah, AR5K_ANTMODE_FIXED_A); 467 printk(KERN_INFO "ath5k debugfs: fixed antenna A\n"); 468 } else if (strncmp(buf, "fixed-b", 7) == 0) { 469 ath5k_hw_set_antenna_mode(sc->ah, AR5K_ANTMODE_FIXED_B); 470 printk(KERN_INFO "ath5k debug: fixed antenna B\n"); 471 } else if (strncmp(buf, "clear", 5) == 0) { 472 for (i = 0; i < ARRAY_SIZE(sc->stats.antenna_rx); i++) { 473 sc->stats.antenna_rx[i] = 0; 474 sc->stats.antenna_tx[i] = 0; 475 } 476 printk(KERN_INFO "ath5k debug: cleared antenna stats\n"); 477 } 478 return count; 479 } 480 481 static const struct file_operations fops_antenna = { 482 .read = read_file_antenna, 483 .write = write_file_antenna, 484 .open = ath5k_debugfs_open, 485 .owner = THIS_MODULE, 486 .llseek = default_llseek, 487 }; 488 489 490 /* debugfs: frameerrors */ 491 492 static ssize_t read_file_frameerrors(struct file *file, char __user *user_buf, 493 size_t count, loff_t *ppos) 494 { 495 struct ath5k_softc *sc = file->private_data; 496 struct ath5k_statistics *st = &sc->stats; 497 char buf[700]; 498 unsigned int len = 0; 499 int i; 500 501 len += snprintf(buf+len, sizeof(buf)-len, 502 "RX\n---------------------\n"); 503 len += snprintf(buf+len, sizeof(buf)-len, "CRC\t%d\t(%d%%)\n", 504 st->rxerr_crc, 505 st->rx_all_count > 0 ? 506 st->rxerr_crc*100/st->rx_all_count : 0); 507 len += snprintf(buf+len, sizeof(buf)-len, "PHY\t%d\t(%d%%)\n", 508 st->rxerr_phy, 509 st->rx_all_count > 0 ? 510 st->rxerr_phy*100/st->rx_all_count : 0); 511 for (i = 0; i < 32; i++) { 512 if (st->rxerr_phy_code[i]) 513 len += snprintf(buf+len, sizeof(buf)-len, 514 " phy_err[%d]\t%d\n", 515 i, st->rxerr_phy_code[i]); 516 } 517 518 len += snprintf(buf+len, sizeof(buf)-len, "FIFO\t%d\t(%d%%)\n", 519 st->rxerr_fifo, 520 st->rx_all_count > 0 ? 521 st->rxerr_fifo*100/st->rx_all_count : 0); 522 len += snprintf(buf+len, sizeof(buf)-len, "decrypt\t%d\t(%d%%)\n", 523 st->rxerr_decrypt, 524 st->rx_all_count > 0 ? 525 st->rxerr_decrypt*100/st->rx_all_count : 0); 526 len += snprintf(buf+len, sizeof(buf)-len, "MIC\t%d\t(%d%%)\n", 527 st->rxerr_mic, 528 st->rx_all_count > 0 ? 529 st->rxerr_mic*100/st->rx_all_count : 0); 530 len += snprintf(buf+len, sizeof(buf)-len, "process\t%d\t(%d%%)\n", 531 st->rxerr_proc, 532 st->rx_all_count > 0 ? 533 st->rxerr_proc*100/st->rx_all_count : 0); 534 len += snprintf(buf+len, sizeof(buf)-len, "jumbo\t%d\t(%d%%)\n", 535 st->rxerr_jumbo, 536 st->rx_all_count > 0 ? 537 st->rxerr_jumbo*100/st->rx_all_count : 0); 538 len += snprintf(buf+len, sizeof(buf)-len, "[RX all\t%d]\n", 539 st->rx_all_count); 540 541 len += snprintf(buf+len, sizeof(buf)-len, 542 "\nTX\n---------------------\n"); 543 len += snprintf(buf+len, sizeof(buf)-len, "retry\t%d\t(%d%%)\n", 544 st->txerr_retry, 545 st->tx_all_count > 0 ? 546 st->txerr_retry*100/st->tx_all_count : 0); 547 len += snprintf(buf+len, sizeof(buf)-len, "FIFO\t%d\t(%d%%)\n", 548 st->txerr_fifo, 549 st->tx_all_count > 0 ? 550 st->txerr_fifo*100/st->tx_all_count : 0); 551 len += snprintf(buf+len, sizeof(buf)-len, "filter\t%d\t(%d%%)\n", 552 st->txerr_filt, 553 st->tx_all_count > 0 ? 554 st->txerr_filt*100/st->tx_all_count : 0); 555 len += snprintf(buf+len, sizeof(buf)-len, "[TX all\t%d]\n", 556 st->tx_all_count); 557 558 if (len > sizeof(buf)) 559 len = sizeof(buf); 560 561 return simple_read_from_buffer(user_buf, count, ppos, buf, len); 562 } 563 564 static ssize_t write_file_frameerrors(struct file *file, 565 const char __user *userbuf, 566 size_t count, loff_t *ppos) 567 { 568 struct ath5k_softc *sc = file->private_data; 569 struct ath5k_statistics *st = &sc->stats; 570 char buf[20]; 571 572 if (copy_from_user(buf, userbuf, min(count, sizeof(buf)))) 573 return -EFAULT; 574 575 if (strncmp(buf, "clear", 5) == 0) { 576 st->rxerr_crc = 0; 577 st->rxerr_phy = 0; 578 st->rxerr_fifo = 0; 579 st->rxerr_decrypt = 0; 580 st->rxerr_mic = 0; 581 st->rxerr_proc = 0; 582 st->rxerr_jumbo = 0; 583 st->rx_all_count = 0; 584 st->txerr_retry = 0; 585 st->txerr_fifo = 0; 586 st->txerr_filt = 0; 587 st->tx_all_count = 0; 588 printk(KERN_INFO "ath5k debug: cleared frameerrors stats\n"); 589 } 590 return count; 591 } 592 593 static const struct file_operations fops_frameerrors = { 594 .read = read_file_frameerrors, 595 .write = write_file_frameerrors, 596 .open = ath5k_debugfs_open, 597 .owner = THIS_MODULE, 598 .llseek = default_llseek, 599 }; 600 601 602 /* debugfs: ani */ 603 604 static ssize_t read_file_ani(struct file *file, char __user *user_buf, 605 size_t count, loff_t *ppos) 606 { 607 struct ath5k_softc *sc = file->private_data; 608 struct ath5k_statistics *st = &sc->stats; 609 struct ath5k_ani_state *as = &sc->ani_state; 610 611 char buf[700]; 612 unsigned int len = 0; 613 614 len += snprintf(buf+len, sizeof(buf)-len, 615 "HW has PHY error counters:\t%s\n", 616 sc->ah->ah_capabilities.cap_has_phyerr_counters ? 617 "yes" : "no"); 618 len += snprintf(buf+len, sizeof(buf)-len, 619 "HW max spur immunity level:\t%d\n", 620 as->max_spur_level); 621 len += snprintf(buf+len, sizeof(buf)-len, 622 "\nANI state\n--------------------------------------------\n"); 623 len += snprintf(buf+len, sizeof(buf)-len, "operating mode:\t\t\t"); 624 switch (as->ani_mode) { 625 case ATH5K_ANI_MODE_OFF: 626 len += snprintf(buf+len, sizeof(buf)-len, "OFF\n"); 627 break; 628 case ATH5K_ANI_MODE_MANUAL_LOW: 629 len += snprintf(buf+len, sizeof(buf)-len, 630 "MANUAL LOW\n"); 631 break; 632 case ATH5K_ANI_MODE_MANUAL_HIGH: 633 len += snprintf(buf+len, sizeof(buf)-len, 634 "MANUAL HIGH\n"); 635 break; 636 case ATH5K_ANI_MODE_AUTO: 637 len += snprintf(buf+len, sizeof(buf)-len, "AUTO\n"); 638 break; 639 default: 640 len += snprintf(buf+len, sizeof(buf)-len, 641 "??? (not good)\n"); 642 break; 643 } 644 len += snprintf(buf+len, sizeof(buf)-len, 645 "noise immunity level:\t\t%d\n", 646 as->noise_imm_level); 647 len += snprintf(buf+len, sizeof(buf)-len, 648 "spur immunity level:\t\t%d\n", 649 as->spur_level); 650 len += snprintf(buf+len, sizeof(buf)-len, "firstep level:\t\t\t%d\n", 651 as->firstep_level); 652 len += snprintf(buf+len, sizeof(buf)-len, 653 "OFDM weak signal detection:\t%s\n", 654 as->ofdm_weak_sig ? "on" : "off"); 655 len += snprintf(buf+len, sizeof(buf)-len, 656 "CCK weak signal detection:\t%s\n", 657 as->cck_weak_sig ? "on" : "off"); 658 659 len += snprintf(buf+len, sizeof(buf)-len, 660 "\nMIB INTERRUPTS:\t\t%u\n", 661 st->mib_intr); 662 len += snprintf(buf+len, sizeof(buf)-len, 663 "beacon RSSI average:\t%d\n", 664 sc->ah->ah_beacon_rssi_avg.avg); 665 len += snprintf(buf+len, sizeof(buf)-len, "profcnt tx\t\t%u\t(%d%%)\n", 666 as->pfc_tx, 667 as->pfc_cycles > 0 ? 668 as->pfc_tx*100/as->pfc_cycles : 0); 669 len += snprintf(buf+len, sizeof(buf)-len, "profcnt rx\t\t%u\t(%d%%)\n", 670 as->pfc_rx, 671 as->pfc_cycles > 0 ? 672 as->pfc_rx*100/as->pfc_cycles : 0); 673 len += snprintf(buf+len, sizeof(buf)-len, "profcnt busy\t\t%u\t(%d%%)\n", 674 as->pfc_busy, 675 as->pfc_cycles > 0 ? 676 as->pfc_busy*100/as->pfc_cycles : 0); 677 len += snprintf(buf+len, sizeof(buf)-len, "profcnt cycles\t\t%u\n", 678 as->pfc_cycles); 679 len += snprintf(buf+len, sizeof(buf)-len, 680 "listen time\t\t%d\tlast: %d\n", 681 as->listen_time, as->last_listen); 682 len += snprintf(buf+len, sizeof(buf)-len, 683 "OFDM errors\t\t%u\tlast: %u\tsum: %u\n", 684 as->ofdm_errors, as->last_ofdm_errors, 685 as->sum_ofdm_errors); 686 len += snprintf(buf+len, sizeof(buf)-len, 687 "CCK errors\t\t%u\tlast: %u\tsum: %u\n", 688 as->cck_errors, as->last_cck_errors, 689 as->sum_cck_errors); 690 len += snprintf(buf+len, sizeof(buf)-len, 691 "AR5K_PHYERR_CNT1\t%x\t(=%d)\n", 692 ath5k_hw_reg_read(sc->ah, AR5K_PHYERR_CNT1), 693 ATH5K_ANI_OFDM_TRIG_HIGH - (ATH5K_PHYERR_CNT_MAX - 694 ath5k_hw_reg_read(sc->ah, AR5K_PHYERR_CNT1))); 695 len += snprintf(buf+len, sizeof(buf)-len, 696 "AR5K_PHYERR_CNT2\t%x\t(=%d)\n", 697 ath5k_hw_reg_read(sc->ah, AR5K_PHYERR_CNT2), 698 ATH5K_ANI_CCK_TRIG_HIGH - (ATH5K_PHYERR_CNT_MAX - 699 ath5k_hw_reg_read(sc->ah, AR5K_PHYERR_CNT2))); 700 701 if (len > sizeof(buf)) 702 len = sizeof(buf); 703 704 return simple_read_from_buffer(user_buf, count, ppos, buf, len); 705 } 706 707 static ssize_t write_file_ani(struct file *file, 708 const char __user *userbuf, 709 size_t count, loff_t *ppos) 710 { 711 struct ath5k_softc *sc = file->private_data; 712 char buf[20]; 713 714 if (copy_from_user(buf, userbuf, min(count, sizeof(buf)))) 715 return -EFAULT; 716 717 if (strncmp(buf, "sens-low", 8) == 0) { 718 ath5k_ani_init(sc->ah, ATH5K_ANI_MODE_MANUAL_HIGH); 719 } else if (strncmp(buf, "sens-high", 9) == 0) { 720 ath5k_ani_init(sc->ah, ATH5K_ANI_MODE_MANUAL_LOW); 721 } else if (strncmp(buf, "ani-off", 7) == 0) { 722 ath5k_ani_init(sc->ah, ATH5K_ANI_MODE_OFF); 723 } else if (strncmp(buf, "ani-on", 6) == 0) { 724 ath5k_ani_init(sc->ah, ATH5K_ANI_MODE_AUTO); 725 } else if (strncmp(buf, "noise-low", 9) == 0) { 726 ath5k_ani_set_noise_immunity_level(sc->ah, 0); 727 } else if (strncmp(buf, "noise-high", 10) == 0) { 728 ath5k_ani_set_noise_immunity_level(sc->ah, 729 ATH5K_ANI_MAX_NOISE_IMM_LVL); 730 } else if (strncmp(buf, "spur-low", 8) == 0) { 731 ath5k_ani_set_spur_immunity_level(sc->ah, 0); 732 } else if (strncmp(buf, "spur-high", 9) == 0) { 733 ath5k_ani_set_spur_immunity_level(sc->ah, 734 sc->ani_state.max_spur_level); 735 } else if (strncmp(buf, "fir-low", 7) == 0) { 736 ath5k_ani_set_firstep_level(sc->ah, 0); 737 } else if (strncmp(buf, "fir-high", 8) == 0) { 738 ath5k_ani_set_firstep_level(sc->ah, ATH5K_ANI_MAX_FIRSTEP_LVL); 739 } else if (strncmp(buf, "ofdm-off", 8) == 0) { 740 ath5k_ani_set_ofdm_weak_signal_detection(sc->ah, false); 741 } else if (strncmp(buf, "ofdm-on", 7) == 0) { 742 ath5k_ani_set_ofdm_weak_signal_detection(sc->ah, true); 743 } else if (strncmp(buf, "cck-off", 7) == 0) { 744 ath5k_ani_set_cck_weak_signal_detection(sc->ah, false); 745 } else if (strncmp(buf, "cck-on", 6) == 0) { 746 ath5k_ani_set_cck_weak_signal_detection(sc->ah, true); 747 } 748 return count; 749 } 750 751 static const struct file_operations fops_ani = { 752 .read = read_file_ani, 753 .write = write_file_ani, 754 .open = ath5k_debugfs_open, 755 .owner = THIS_MODULE, 756 .llseek = default_llseek, 757 }; 758 759 760 /* debugfs: queues etc */ 761 762 static ssize_t read_file_queue(struct file *file, char __user *user_buf, 763 size_t count, loff_t *ppos) 764 { 765 struct ath5k_softc *sc = file->private_data; 766 char buf[700]; 767 unsigned int len = 0; 768 769 struct ath5k_txq *txq; 770 struct ath5k_buf *bf, *bf0; 771 int i, n = 0; 772 773 len += snprintf(buf+len, sizeof(buf)-len, 774 "available txbuffers: %d\n", sc->txbuf_len); 775 776 for (i = 0; i < ARRAY_SIZE(sc->txqs); i++) { 777 txq = &sc->txqs[i]; 778 779 len += snprintf(buf+len, sizeof(buf)-len, 780 "%02d: %ssetup\n", i, txq->setup ? "" : "not "); 781 782 if (!txq->setup) 783 continue; 784 785 list_for_each_entry_safe(bf, bf0, &txq->q, list) 786 n++; 787 len += snprintf(buf+len, sizeof(buf)-len, " len: %d\n", n); 788 } 789 790 if (len > sizeof(buf)) 791 len = sizeof(buf); 792 793 return simple_read_from_buffer(user_buf, count, ppos, buf, len); 794 } 795 796 static ssize_t write_file_queue(struct file *file, 797 const char __user *userbuf, 798 size_t count, loff_t *ppos) 799 { 800 struct ath5k_softc *sc = file->private_data; 801 char buf[20]; 802 803 if (copy_from_user(buf, userbuf, min(count, sizeof(buf)))) 804 return -EFAULT; 805 806 if (strncmp(buf, "start", 5) == 0) 807 ieee80211_wake_queues(sc->hw); 808 else if (strncmp(buf, "stop", 4) == 0) 809 ieee80211_stop_queues(sc->hw); 810 811 return count; 812 } 813 814 815 static const struct file_operations fops_queue = { 816 .read = read_file_queue, 817 .write = write_file_queue, 818 .open = ath5k_debugfs_open, 819 .owner = THIS_MODULE, 820 .llseek = default_llseek, 821 }; 822 823 824 /* init */ 825 826 void 827 ath5k_debug_init(void) 828 { 829 ath5k_global_debugfs = debugfs_create_dir("ath5k", NULL); 830 } 831 832 void 833 ath5k_debug_init_device(struct ath5k_softc *sc) 834 { 835 sc->debug.level = ath5k_debug; 836 837 sc->debug.debugfs_phydir = debugfs_create_dir(wiphy_name(sc->hw->wiphy), 838 ath5k_global_debugfs); 839 840 sc->debug.debugfs_debug = debugfs_create_file("debug", 841 S_IWUSR | S_IRUSR, 842 sc->debug.debugfs_phydir, sc, &fops_debug); 843 844 sc->debug.debugfs_registers = debugfs_create_file("registers", S_IRUSR, 845 sc->debug.debugfs_phydir, sc, &fops_registers); 846 847 sc->debug.debugfs_beacon = debugfs_create_file("beacon", 848 S_IWUSR | S_IRUSR, 849 sc->debug.debugfs_phydir, sc, &fops_beacon); 850 851 sc->debug.debugfs_reset = debugfs_create_file("reset", S_IWUSR, 852 sc->debug.debugfs_phydir, sc, &fops_reset); 853 854 sc->debug.debugfs_antenna = debugfs_create_file("antenna", 855 S_IWUSR | S_IRUSR, 856 sc->debug.debugfs_phydir, sc, &fops_antenna); 857 858 sc->debug.debugfs_frameerrors = debugfs_create_file("frameerrors", 859 S_IWUSR | S_IRUSR, 860 sc->debug.debugfs_phydir, sc, 861 &fops_frameerrors); 862 863 sc->debug.debugfs_ani = debugfs_create_file("ani", 864 S_IWUSR | S_IRUSR, 865 sc->debug.debugfs_phydir, sc, 866 &fops_ani); 867 868 sc->debug.debugfs_queue = debugfs_create_file("queue", 869 S_IWUSR | S_IRUSR, 870 sc->debug.debugfs_phydir, sc, 871 &fops_queue); 872 } 873 874 void 875 ath5k_debug_finish(void) 876 { 877 debugfs_remove(ath5k_global_debugfs); 878 } 879 880 void 881 ath5k_debug_finish_device(struct ath5k_softc *sc) 882 { 883 debugfs_remove(sc->debug.debugfs_debug); 884 debugfs_remove(sc->debug.debugfs_registers); 885 debugfs_remove(sc->debug.debugfs_beacon); 886 debugfs_remove(sc->debug.debugfs_reset); 887 debugfs_remove(sc->debug.debugfs_antenna); 888 debugfs_remove(sc->debug.debugfs_frameerrors); 889 debugfs_remove(sc->debug.debugfs_ani); 890 debugfs_remove(sc->debug.debugfs_queue); 891 debugfs_remove(sc->debug.debugfs_phydir); 892 } 893 894 895 /* functions used in other places */ 896 897 void 898 ath5k_debug_dump_bands(struct ath5k_softc *sc) 899 { 900 unsigned int b, i; 901 902 if (likely(!(sc->debug.level & ATH5K_DEBUG_DUMPBANDS))) 903 return; 904 905 BUG_ON(!sc->sbands); 906 907 for (b = 0; b < IEEE80211_NUM_BANDS; b++) { 908 struct ieee80211_supported_band *band = &sc->sbands[b]; 909 char bname[6]; 910 switch (band->band) { 911 case IEEE80211_BAND_2GHZ: 912 strcpy(bname, "2 GHz"); 913 break; 914 case IEEE80211_BAND_5GHZ: 915 strcpy(bname, "5 GHz"); 916 break; 917 default: 918 printk(KERN_DEBUG "Band not supported: %d\n", 919 band->band); 920 return; 921 } 922 printk(KERN_DEBUG "Band %s: channels %d, rates %d\n", bname, 923 band->n_channels, band->n_bitrates); 924 printk(KERN_DEBUG " channels:\n"); 925 for (i = 0; i < band->n_channels; i++) 926 printk(KERN_DEBUG " %3d %d %.4x %.4x\n", 927 ieee80211_frequency_to_channel( 928 band->channels[i].center_freq), 929 band->channels[i].center_freq, 930 band->channels[i].hw_value, 931 band->channels[i].flags); 932 printk(KERN_DEBUG " rates:\n"); 933 for (i = 0; i < band->n_bitrates; i++) 934 printk(KERN_DEBUG " %4d %.4x %.4x %.4x\n", 935 band->bitrates[i].bitrate, 936 band->bitrates[i].hw_value, 937 band->bitrates[i].flags, 938 band->bitrates[i].hw_value_short); 939 } 940 } 941 942 static inline void 943 ath5k_debug_printrxbuf(struct ath5k_buf *bf, int done, 944 struct ath5k_rx_status *rs) 945 { 946 struct ath5k_desc *ds = bf->desc; 947 struct ath5k_hw_all_rx_desc *rd = &ds->ud.ds_rx; 948 949 printk(KERN_DEBUG "R (%p %llx) %08x %08x %08x %08x %08x %08x %c\n", 950 ds, (unsigned long long)bf->daddr, 951 ds->ds_link, ds->ds_data, 952 rd->rx_ctl.rx_control_0, rd->rx_ctl.rx_control_1, 953 rd->rx_stat.rx_status_0, rd->rx_stat.rx_status_1, 954 !done ? ' ' : (rs->rs_status == 0) ? '*' : '!'); 955 } 956 957 void 958 ath5k_debug_printrxbuffs(struct ath5k_softc *sc, struct ath5k_hw *ah) 959 { 960 struct ath5k_desc *ds; 961 struct ath5k_buf *bf; 962 struct ath5k_rx_status rs = {}; 963 int status; 964 965 if (likely(!(sc->debug.level & ATH5K_DEBUG_RESET))) 966 return; 967 968 printk(KERN_DEBUG "rxdp %x, rxlink %p\n", 969 ath5k_hw_get_rxdp(ah), sc->rxlink); 970 971 spin_lock_bh(&sc->rxbuflock); 972 list_for_each_entry(bf, &sc->rxbuf, list) { 973 ds = bf->desc; 974 status = ah->ah_proc_rx_desc(ah, ds, &rs); 975 if (!status) 976 ath5k_debug_printrxbuf(bf, status == 0, &rs); 977 } 978 spin_unlock_bh(&sc->rxbuflock); 979 } 980 981 void 982 ath5k_debug_dump_skb(struct ath5k_softc *sc, 983 struct sk_buff *skb, const char *prefix, int tx) 984 { 985 char buf[16]; 986 987 if (likely(!((tx && (sc->debug.level & ATH5K_DEBUG_DUMP_TX)) || 988 (!tx && (sc->debug.level & ATH5K_DEBUG_DUMP_RX))))) 989 return; 990 991 snprintf(buf, sizeof(buf), "%s %s", wiphy_name(sc->hw->wiphy), prefix); 992 993 print_hex_dump_bytes(buf, DUMP_PREFIX_NONE, skb->data, 994 min(200U, skb->len)); 995 996 printk(KERN_DEBUG "\n"); 997 } 998 999 void 1000 ath5k_debug_printtxbuf(struct ath5k_softc *sc, struct ath5k_buf *bf) 1001 { 1002 struct ath5k_desc *ds = bf->desc; 1003 struct ath5k_hw_5212_tx_desc *td = &ds->ud.ds_tx5212; 1004 struct ath5k_tx_status ts = {}; 1005 int done; 1006 1007 if (likely(!(sc->debug.level & ATH5K_DEBUG_RESET))) 1008 return; 1009 1010 done = sc->ah->ah_proc_tx_desc(sc->ah, bf->desc, &ts); 1011 1012 printk(KERN_DEBUG "T (%p %llx) %08x %08x %08x %08x %08x %08x %08x " 1013 "%08x %c\n", ds, (unsigned long long)bf->daddr, ds->ds_link, 1014 ds->ds_data, td->tx_ctl.tx_control_0, td->tx_ctl.tx_control_1, 1015 td->tx_ctl.tx_control_2, td->tx_ctl.tx_control_3, 1016 td->tx_stat.tx_status_0, td->tx_stat.tx_status_1, 1017 done ? ' ' : (ts.ts_status == 0) ? '*' : '!'); 1018 } 1019 1020 #endif /* ifdef CONFIG_ATH5K_DEBUG */ 1021