1 /* 2 * Copyright (c) 2008-2011 Atheros Communications Inc. 3 * 4 * Permission to use, copy, modify, and/or distribute this software for any 5 * purpose with or without fee is hereby granted, provided that the above 6 * copyright notice and this permission notice appear in all copies. 7 * 8 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES 9 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF 10 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR 11 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES 12 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN 13 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF 14 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. 15 */ 16 17 #include <linux/slab.h> 18 #include <linux/vmalloc.h> 19 #include <asm/unaligned.h> 20 21 #include "ath9k.h" 22 23 #define REG_WRITE_D(_ah, _reg, _val) \ 24 ath9k_hw_common(_ah)->ops->write((_ah), (_val), (_reg)) 25 #define REG_READ_D(_ah, _reg) \ 26 ath9k_hw_common(_ah)->ops->read((_ah), (_reg)) 27 28 static int ath9k_debugfs_open(struct inode *inode, struct file *file) 29 { 30 file->private_data = inode->i_private; 31 return 0; 32 } 33 34 static ssize_t ath9k_debugfs_read_buf(struct file *file, char __user *user_buf, 35 size_t count, loff_t *ppos) 36 { 37 u8 *buf = file->private_data; 38 return simple_read_from_buffer(user_buf, count, ppos, buf, strlen(buf)); 39 } 40 41 static int ath9k_debugfs_release_buf(struct inode *inode, struct file *file) 42 { 43 vfree(file->private_data); 44 return 0; 45 } 46 47 #ifdef CONFIG_ATH_DEBUG 48 49 static ssize_t read_file_debug(struct file *file, char __user *user_buf, 50 size_t count, loff_t *ppos) 51 { 52 struct ath_softc *sc = file->private_data; 53 struct ath_common *common = ath9k_hw_common(sc->sc_ah); 54 char buf[32]; 55 unsigned int len; 56 57 len = sprintf(buf, "0x%08x\n", common->debug_mask); 58 return simple_read_from_buffer(user_buf, count, ppos, buf, len); 59 } 60 61 static ssize_t write_file_debug(struct file *file, const char __user *user_buf, 62 size_t count, loff_t *ppos) 63 { 64 struct ath_softc *sc = file->private_data; 65 struct ath_common *common = ath9k_hw_common(sc->sc_ah); 66 unsigned long mask; 67 char buf[32]; 68 ssize_t len; 69 70 len = min(count, sizeof(buf) - 1); 71 if (copy_from_user(buf, user_buf, len)) 72 return -EFAULT; 73 74 buf[len] = '\0'; 75 if (strict_strtoul(buf, 0, &mask)) 76 return -EINVAL; 77 78 common->debug_mask = mask; 79 return count; 80 } 81 82 static const struct file_operations fops_debug = { 83 .read = read_file_debug, 84 .write = write_file_debug, 85 .open = ath9k_debugfs_open, 86 .owner = THIS_MODULE, 87 .llseek = default_llseek, 88 }; 89 90 #endif 91 92 #define DMA_BUF_LEN 1024 93 94 static ssize_t read_file_tx_chainmask(struct file *file, char __user *user_buf, 95 size_t count, loff_t *ppos) 96 { 97 struct ath_softc *sc = file->private_data; 98 struct ath_common *common = ath9k_hw_common(sc->sc_ah); 99 char buf[32]; 100 unsigned int len; 101 102 len = sprintf(buf, "0x%08x\n", common->tx_chainmask); 103 return simple_read_from_buffer(user_buf, count, ppos, buf, len); 104 } 105 106 static ssize_t write_file_tx_chainmask(struct file *file, const char __user *user_buf, 107 size_t count, loff_t *ppos) 108 { 109 struct ath_softc *sc = file->private_data; 110 struct ath_common *common = ath9k_hw_common(sc->sc_ah); 111 unsigned long mask; 112 char buf[32]; 113 ssize_t len; 114 115 len = min(count, sizeof(buf) - 1); 116 if (copy_from_user(buf, user_buf, len)) 117 return -EFAULT; 118 119 buf[len] = '\0'; 120 if (strict_strtoul(buf, 0, &mask)) 121 return -EINVAL; 122 123 common->tx_chainmask = mask; 124 sc->sc_ah->caps.tx_chainmask = mask; 125 return count; 126 } 127 128 static const struct file_operations fops_tx_chainmask = { 129 .read = read_file_tx_chainmask, 130 .write = write_file_tx_chainmask, 131 .open = ath9k_debugfs_open, 132 .owner = THIS_MODULE, 133 .llseek = default_llseek, 134 }; 135 136 137 static ssize_t read_file_rx_chainmask(struct file *file, char __user *user_buf, 138 size_t count, loff_t *ppos) 139 { 140 struct ath_softc *sc = file->private_data; 141 struct ath_common *common = ath9k_hw_common(sc->sc_ah); 142 char buf[32]; 143 unsigned int len; 144 145 len = sprintf(buf, "0x%08x\n", common->rx_chainmask); 146 return simple_read_from_buffer(user_buf, count, ppos, buf, len); 147 } 148 149 static ssize_t write_file_rx_chainmask(struct file *file, const char __user *user_buf, 150 size_t count, loff_t *ppos) 151 { 152 struct ath_softc *sc = file->private_data; 153 struct ath_common *common = ath9k_hw_common(sc->sc_ah); 154 unsigned long mask; 155 char buf[32]; 156 ssize_t len; 157 158 len = min(count, sizeof(buf) - 1); 159 if (copy_from_user(buf, user_buf, len)) 160 return -EFAULT; 161 162 buf[len] = '\0'; 163 if (strict_strtoul(buf, 0, &mask)) 164 return -EINVAL; 165 166 common->rx_chainmask = mask; 167 sc->sc_ah->caps.rx_chainmask = mask; 168 return count; 169 } 170 171 static const struct file_operations fops_rx_chainmask = { 172 .read = read_file_rx_chainmask, 173 .write = write_file_rx_chainmask, 174 .open = ath9k_debugfs_open, 175 .owner = THIS_MODULE, 176 .llseek = default_llseek, 177 }; 178 179 static ssize_t read_file_disable_ani(struct file *file, char __user *user_buf, 180 size_t count, loff_t *ppos) 181 { 182 struct ath_softc *sc = file->private_data; 183 struct ath_common *common = ath9k_hw_common(sc->sc_ah); 184 char buf[32]; 185 unsigned int len; 186 187 len = sprintf(buf, "%d\n", common->disable_ani); 188 return simple_read_from_buffer(user_buf, count, ppos, buf, len); 189 } 190 191 static ssize_t write_file_disable_ani(struct file *file, 192 const char __user *user_buf, 193 size_t count, loff_t *ppos) 194 { 195 struct ath_softc *sc = file->private_data; 196 struct ath_common *common = ath9k_hw_common(sc->sc_ah); 197 unsigned long disable_ani; 198 char buf[32]; 199 ssize_t len; 200 201 len = min(count, sizeof(buf) - 1); 202 if (copy_from_user(buf, user_buf, len)) 203 return -EFAULT; 204 205 buf[len] = '\0'; 206 if (strict_strtoul(buf, 0, &disable_ani)) 207 return -EINVAL; 208 209 common->disable_ani = !!disable_ani; 210 211 if (disable_ani) { 212 sc->sc_flags &= ~SC_OP_ANI_RUN; 213 del_timer_sync(&common->ani.timer); 214 } else { 215 sc->sc_flags |= SC_OP_ANI_RUN; 216 ath_start_ani(common); 217 } 218 219 return count; 220 } 221 222 static const struct file_operations fops_disable_ani = { 223 .read = read_file_disable_ani, 224 .write = write_file_disable_ani, 225 .open = ath9k_debugfs_open, 226 .owner = THIS_MODULE, 227 .llseek = default_llseek, 228 }; 229 230 static ssize_t read_file_dma(struct file *file, char __user *user_buf, 231 size_t count, loff_t *ppos) 232 { 233 struct ath_softc *sc = file->private_data; 234 struct ath_hw *ah = sc->sc_ah; 235 char *buf; 236 int retval; 237 unsigned int len = 0; 238 u32 val[ATH9K_NUM_DMA_DEBUG_REGS]; 239 int i, qcuOffset = 0, dcuOffset = 0; 240 u32 *qcuBase = &val[0], *dcuBase = &val[4]; 241 242 buf = kmalloc(DMA_BUF_LEN, GFP_KERNEL); 243 if (!buf) 244 return -ENOMEM; 245 246 ath9k_ps_wakeup(sc); 247 248 REG_WRITE_D(ah, AR_MACMISC, 249 ((AR_MACMISC_DMA_OBS_LINE_8 << AR_MACMISC_DMA_OBS_S) | 250 (AR_MACMISC_MISC_OBS_BUS_1 << 251 AR_MACMISC_MISC_OBS_BUS_MSB_S))); 252 253 len += snprintf(buf + len, DMA_BUF_LEN - len, 254 "Raw DMA Debug values:\n"); 255 256 for (i = 0; i < ATH9K_NUM_DMA_DEBUG_REGS; i++) { 257 if (i % 4 == 0) 258 len += snprintf(buf + len, DMA_BUF_LEN - len, "\n"); 259 260 val[i] = REG_READ_D(ah, AR_DMADBG_0 + (i * sizeof(u32))); 261 len += snprintf(buf + len, DMA_BUF_LEN - len, "%d: %08x ", 262 i, val[i]); 263 } 264 265 len += snprintf(buf + len, DMA_BUF_LEN - len, "\n\n"); 266 len += snprintf(buf + len, DMA_BUF_LEN - len, 267 "Num QCU: chain_st fsp_ok fsp_st DCU: chain_st\n"); 268 269 for (i = 0; i < ATH9K_NUM_QUEUES; i++, qcuOffset += 4, dcuOffset += 5) { 270 if (i == 8) { 271 qcuOffset = 0; 272 qcuBase++; 273 } 274 275 if (i == 6) { 276 dcuOffset = 0; 277 dcuBase++; 278 } 279 280 len += snprintf(buf + len, DMA_BUF_LEN - len, 281 "%2d %2x %1x %2x %2x\n", 282 i, (*qcuBase & (0x7 << qcuOffset)) >> qcuOffset, 283 (*qcuBase & (0x8 << qcuOffset)) >> (qcuOffset + 3), 284 val[2] & (0x7 << (i * 3)) >> (i * 3), 285 (*dcuBase & (0x1f << dcuOffset)) >> dcuOffset); 286 } 287 288 len += snprintf(buf + len, DMA_BUF_LEN - len, "\n"); 289 290 len += snprintf(buf + len, DMA_BUF_LEN - len, 291 "qcu_stitch state: %2x qcu_fetch state: %2x\n", 292 (val[3] & 0x003c0000) >> 18, (val[3] & 0x03c00000) >> 22); 293 len += snprintf(buf + len, DMA_BUF_LEN - len, 294 "qcu_complete state: %2x dcu_complete state: %2x\n", 295 (val[3] & 0x1c000000) >> 26, (val[6] & 0x3)); 296 len += snprintf(buf + len, DMA_BUF_LEN - len, 297 "dcu_arb state: %2x dcu_fp state: %2x\n", 298 (val[5] & 0x06000000) >> 25, (val[5] & 0x38000000) >> 27); 299 len += snprintf(buf + len, DMA_BUF_LEN - len, 300 "chan_idle_dur: %3d chan_idle_dur_valid: %1d\n", 301 (val[6] & 0x000003fc) >> 2, (val[6] & 0x00000400) >> 10); 302 len += snprintf(buf + len, DMA_BUF_LEN - len, 303 "txfifo_valid_0: %1d txfifo_valid_1: %1d\n", 304 (val[6] & 0x00000800) >> 11, (val[6] & 0x00001000) >> 12); 305 len += snprintf(buf + len, DMA_BUF_LEN - len, 306 "txfifo_dcu_num_0: %2d txfifo_dcu_num_1: %2d\n", 307 (val[6] & 0x0001e000) >> 13, (val[6] & 0x001e0000) >> 17); 308 309 len += snprintf(buf + len, DMA_BUF_LEN - len, "pcu observe: 0x%x\n", 310 REG_READ_D(ah, AR_OBS_BUS_1)); 311 len += snprintf(buf + len, DMA_BUF_LEN - len, 312 "AR_CR: 0x%x\n", REG_READ_D(ah, AR_CR)); 313 314 ath9k_ps_restore(sc); 315 316 if (len > DMA_BUF_LEN) 317 len = DMA_BUF_LEN; 318 319 retval = simple_read_from_buffer(user_buf, count, ppos, buf, len); 320 kfree(buf); 321 return retval; 322 } 323 324 static const struct file_operations fops_dma = { 325 .read = read_file_dma, 326 .open = ath9k_debugfs_open, 327 .owner = THIS_MODULE, 328 .llseek = default_llseek, 329 }; 330 331 332 void ath_debug_stat_interrupt(struct ath_softc *sc, enum ath9k_int status) 333 { 334 if (status) 335 sc->debug.stats.istats.total++; 336 if (sc->sc_ah->caps.hw_caps & ATH9K_HW_CAP_EDMA) { 337 if (status & ATH9K_INT_RXLP) 338 sc->debug.stats.istats.rxlp++; 339 if (status & ATH9K_INT_RXHP) 340 sc->debug.stats.istats.rxhp++; 341 if (status & ATH9K_INT_BB_WATCHDOG) 342 sc->debug.stats.istats.bb_watchdog++; 343 } else { 344 if (status & ATH9K_INT_RX) 345 sc->debug.stats.istats.rxok++; 346 } 347 if (status & ATH9K_INT_RXEOL) 348 sc->debug.stats.istats.rxeol++; 349 if (status & ATH9K_INT_RXORN) 350 sc->debug.stats.istats.rxorn++; 351 if (status & ATH9K_INT_TX) 352 sc->debug.stats.istats.txok++; 353 if (status & ATH9K_INT_TXURN) 354 sc->debug.stats.istats.txurn++; 355 if (status & ATH9K_INT_MIB) 356 sc->debug.stats.istats.mib++; 357 if (status & ATH9K_INT_RXPHY) 358 sc->debug.stats.istats.rxphyerr++; 359 if (status & ATH9K_INT_RXKCM) 360 sc->debug.stats.istats.rx_keycache_miss++; 361 if (status & ATH9K_INT_SWBA) 362 sc->debug.stats.istats.swba++; 363 if (status & ATH9K_INT_BMISS) 364 sc->debug.stats.istats.bmiss++; 365 if (status & ATH9K_INT_BNR) 366 sc->debug.stats.istats.bnr++; 367 if (status & ATH9K_INT_CST) 368 sc->debug.stats.istats.cst++; 369 if (status & ATH9K_INT_GTT) 370 sc->debug.stats.istats.gtt++; 371 if (status & ATH9K_INT_TIM) 372 sc->debug.stats.istats.tim++; 373 if (status & ATH9K_INT_CABEND) 374 sc->debug.stats.istats.cabend++; 375 if (status & ATH9K_INT_DTIMSYNC) 376 sc->debug.stats.istats.dtimsync++; 377 if (status & ATH9K_INT_DTIM) 378 sc->debug.stats.istats.dtim++; 379 if (status & ATH9K_INT_TSFOOR) 380 sc->debug.stats.istats.tsfoor++; 381 } 382 383 static ssize_t read_file_interrupt(struct file *file, char __user *user_buf, 384 size_t count, loff_t *ppos) 385 { 386 struct ath_softc *sc = file->private_data; 387 char buf[512]; 388 unsigned int len = 0; 389 390 if (sc->sc_ah->caps.hw_caps & ATH9K_HW_CAP_EDMA) { 391 len += snprintf(buf + len, sizeof(buf) - len, 392 "%8s: %10u\n", "RXLP", sc->debug.stats.istats.rxlp); 393 len += snprintf(buf + len, sizeof(buf) - len, 394 "%8s: %10u\n", "RXHP", sc->debug.stats.istats.rxhp); 395 len += snprintf(buf + len, sizeof(buf) - len, 396 "%8s: %10u\n", "WATCHDOG", 397 sc->debug.stats.istats.bb_watchdog); 398 } else { 399 len += snprintf(buf + len, sizeof(buf) - len, 400 "%8s: %10u\n", "RX", sc->debug.stats.istats.rxok); 401 } 402 len += snprintf(buf + len, sizeof(buf) - len, 403 "%8s: %10u\n", "RXEOL", sc->debug.stats.istats.rxeol); 404 len += snprintf(buf + len, sizeof(buf) - len, 405 "%8s: %10u\n", "RXORN", sc->debug.stats.istats.rxorn); 406 len += snprintf(buf + len, sizeof(buf) - len, 407 "%8s: %10u\n", "TX", sc->debug.stats.istats.txok); 408 len += snprintf(buf + len, sizeof(buf) - len, 409 "%8s: %10u\n", "TXURN", sc->debug.stats.istats.txurn); 410 len += snprintf(buf + len, sizeof(buf) - len, 411 "%8s: %10u\n", "MIB", sc->debug.stats.istats.mib); 412 len += snprintf(buf + len, sizeof(buf) - len, 413 "%8s: %10u\n", "RXPHY", sc->debug.stats.istats.rxphyerr); 414 len += snprintf(buf + len, sizeof(buf) - len, 415 "%8s: %10u\n", "RXKCM", sc->debug.stats.istats.rx_keycache_miss); 416 len += snprintf(buf + len, sizeof(buf) - len, 417 "%8s: %10u\n", "SWBA", sc->debug.stats.istats.swba); 418 len += snprintf(buf + len, sizeof(buf) - len, 419 "%8s: %10u\n", "BMISS", sc->debug.stats.istats.bmiss); 420 len += snprintf(buf + len, sizeof(buf) - len, 421 "%8s: %10u\n", "BNR", sc->debug.stats.istats.bnr); 422 len += snprintf(buf + len, sizeof(buf) - len, 423 "%8s: %10u\n", "CST", sc->debug.stats.istats.cst); 424 len += snprintf(buf + len, sizeof(buf) - len, 425 "%8s: %10u\n", "GTT", sc->debug.stats.istats.gtt); 426 len += snprintf(buf + len, sizeof(buf) - len, 427 "%8s: %10u\n", "TIM", sc->debug.stats.istats.tim); 428 len += snprintf(buf + len, sizeof(buf) - len, 429 "%8s: %10u\n", "CABEND", sc->debug.stats.istats.cabend); 430 len += snprintf(buf + len, sizeof(buf) - len, 431 "%8s: %10u\n", "DTIMSYNC", sc->debug.stats.istats.dtimsync); 432 len += snprintf(buf + len, sizeof(buf) - len, 433 "%8s: %10u\n", "DTIM", sc->debug.stats.istats.dtim); 434 len += snprintf(buf + len, sizeof(buf) - len, 435 "%8s: %10u\n", "TSFOOR", sc->debug.stats.istats.tsfoor); 436 len += snprintf(buf + len, sizeof(buf) - len, 437 "%8s: %10u\n", "TOTAL", sc->debug.stats.istats.total); 438 439 440 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 const struct file_operations fops_interrupt = { 447 .read = read_file_interrupt, 448 .open = ath9k_debugfs_open, 449 .owner = THIS_MODULE, 450 .llseek = default_llseek, 451 }; 452 453 static const char *channel_type_str(enum nl80211_channel_type t) 454 { 455 switch (t) { 456 case NL80211_CHAN_NO_HT: 457 return "no ht"; 458 case NL80211_CHAN_HT20: 459 return "ht20"; 460 case NL80211_CHAN_HT40MINUS: 461 return "ht40-"; 462 case NL80211_CHAN_HT40PLUS: 463 return "ht40+"; 464 default: 465 return "???"; 466 } 467 } 468 469 static ssize_t read_file_wiphy(struct file *file, char __user *user_buf, 470 size_t count, loff_t *ppos) 471 { 472 struct ath_softc *sc = file->private_data; 473 struct ieee80211_channel *chan = sc->hw->conf.channel; 474 struct ieee80211_conf *conf = &(sc->hw->conf); 475 char buf[512]; 476 unsigned int len = 0; 477 u8 addr[ETH_ALEN]; 478 u32 tmp; 479 480 len += snprintf(buf + len, sizeof(buf) - len, 481 "%s (chan=%d center-freq: %d MHz channel-type: %d (%s))\n", 482 wiphy_name(sc->hw->wiphy), 483 ieee80211_frequency_to_channel(chan->center_freq), 484 chan->center_freq, 485 conf->channel_type, 486 channel_type_str(conf->channel_type)); 487 488 ath9k_ps_wakeup(sc); 489 put_unaligned_le32(REG_READ_D(sc->sc_ah, AR_STA_ID0), addr); 490 put_unaligned_le16(REG_READ_D(sc->sc_ah, AR_STA_ID1) & 0xffff, addr + 4); 491 len += snprintf(buf + len, sizeof(buf) - len, 492 "addr: %pM\n", addr); 493 put_unaligned_le32(REG_READ_D(sc->sc_ah, AR_BSSMSKL), addr); 494 put_unaligned_le16(REG_READ_D(sc->sc_ah, AR_BSSMSKU) & 0xffff, addr + 4); 495 len += snprintf(buf + len, sizeof(buf) - len, 496 "addrmask: %pM\n", addr); 497 tmp = ath9k_hw_getrxfilter(sc->sc_ah); 498 ath9k_ps_restore(sc); 499 len += snprintf(buf + len, sizeof(buf) - len, 500 "rfilt: 0x%x", tmp); 501 if (tmp & ATH9K_RX_FILTER_UCAST) 502 len += snprintf(buf + len, sizeof(buf) - len, " UCAST"); 503 if (tmp & ATH9K_RX_FILTER_MCAST) 504 len += snprintf(buf + len, sizeof(buf) - len, " MCAST"); 505 if (tmp & ATH9K_RX_FILTER_BCAST) 506 len += snprintf(buf + len, sizeof(buf) - len, " BCAST"); 507 if (tmp & ATH9K_RX_FILTER_CONTROL) 508 len += snprintf(buf + len, sizeof(buf) - len, " CONTROL"); 509 if (tmp & ATH9K_RX_FILTER_BEACON) 510 len += snprintf(buf + len, sizeof(buf) - len, " BEACON"); 511 if (tmp & ATH9K_RX_FILTER_PROM) 512 len += snprintf(buf + len, sizeof(buf) - len, " PROM"); 513 if (tmp & ATH9K_RX_FILTER_PROBEREQ) 514 len += snprintf(buf + len, sizeof(buf) - len, " PROBEREQ"); 515 if (tmp & ATH9K_RX_FILTER_PHYERR) 516 len += snprintf(buf + len, sizeof(buf) - len, " PHYERR"); 517 if (tmp & ATH9K_RX_FILTER_MYBEACON) 518 len += snprintf(buf + len, sizeof(buf) - len, " MYBEACON"); 519 if (tmp & ATH9K_RX_FILTER_COMP_BAR) 520 len += snprintf(buf + len, sizeof(buf) - len, " COMP_BAR"); 521 if (tmp & ATH9K_RX_FILTER_PSPOLL) 522 len += snprintf(buf + len, sizeof(buf) - len, " PSPOLL"); 523 if (tmp & ATH9K_RX_FILTER_PHYRADAR) 524 len += snprintf(buf + len, sizeof(buf) - len, " PHYRADAR"); 525 if (tmp & ATH9K_RX_FILTER_MCAST_BCAST_ALL) 526 len += snprintf(buf + len, sizeof(buf) - len, " MCAST_BCAST_ALL\n"); 527 else 528 len += snprintf(buf + len, sizeof(buf) - len, "\n"); 529 530 if (len > sizeof(buf)) 531 len = sizeof(buf); 532 533 return simple_read_from_buffer(user_buf, count, ppos, buf, len); 534 } 535 536 static const struct file_operations fops_wiphy = { 537 .read = read_file_wiphy, 538 .open = ath9k_debugfs_open, 539 .owner = THIS_MODULE, 540 .llseek = default_llseek, 541 }; 542 543 #define PR_QNUM(_n) sc->tx.txq_map[_n]->axq_qnum 544 #define PR(str, elem) \ 545 do { \ 546 len += snprintf(buf + len, size - len, \ 547 "%s%13u%11u%10u%10u\n", str, \ 548 sc->debug.stats.txstats[PR_QNUM(WME_AC_BE)].elem, \ 549 sc->debug.stats.txstats[PR_QNUM(WME_AC_BK)].elem, \ 550 sc->debug.stats.txstats[PR_QNUM(WME_AC_VI)].elem, \ 551 sc->debug.stats.txstats[PR_QNUM(WME_AC_VO)].elem); \ 552 if (len >= size) \ 553 goto done; \ 554 } while(0) 555 556 #define PRX(str, elem) \ 557 do { \ 558 len += snprintf(buf + len, size - len, \ 559 "%s%13u%11u%10u%10u\n", str, \ 560 (unsigned int)(sc->tx.txq_map[WME_AC_BE]->elem), \ 561 (unsigned int)(sc->tx.txq_map[WME_AC_BK]->elem), \ 562 (unsigned int)(sc->tx.txq_map[WME_AC_VI]->elem), \ 563 (unsigned int)(sc->tx.txq_map[WME_AC_VO]->elem)); \ 564 if (len >= size) \ 565 goto done; \ 566 } while(0) 567 568 #define PRQLE(str, elem) \ 569 do { \ 570 len += snprintf(buf + len, size - len, \ 571 "%s%13i%11i%10i%10i\n", str, \ 572 list_empty(&sc->tx.txq_map[WME_AC_BE]->elem), \ 573 list_empty(&sc->tx.txq_map[WME_AC_BK]->elem), \ 574 list_empty(&sc->tx.txq_map[WME_AC_VI]->elem), \ 575 list_empty(&sc->tx.txq_map[WME_AC_VO]->elem)); \ 576 if (len >= size) \ 577 goto done; \ 578 } while (0) 579 580 static ssize_t read_file_xmit(struct file *file, char __user *user_buf, 581 size_t count, loff_t *ppos) 582 { 583 struct ath_softc *sc = file->private_data; 584 char *buf; 585 unsigned int len = 0, size = 8000; 586 int i; 587 ssize_t retval = 0; 588 char tmp[32]; 589 590 buf = kzalloc(size, GFP_KERNEL); 591 if (buf == NULL) 592 return -ENOMEM; 593 594 len += sprintf(buf, "Num-Tx-Queues: %i tx-queues-setup: 0x%x" 595 " poll-work-seen: %u\n" 596 "%30s %10s%10s%10s\n\n", 597 ATH9K_NUM_TX_QUEUES, sc->tx.txqsetup, 598 sc->tx_complete_poll_work_seen, 599 "BE", "BK", "VI", "VO"); 600 601 PR("MPDUs Queued: ", queued); 602 PR("MPDUs Completed: ", completed); 603 PR("MPDUs XRetried: ", xretries); 604 PR("Aggregates: ", a_aggr); 605 PR("AMPDUs Queued HW:", a_queued_hw); 606 PR("AMPDUs Queued SW:", a_queued_sw); 607 PR("AMPDUs Completed:", a_completed); 608 PR("AMPDUs Retried: ", a_retries); 609 PR("AMPDUs XRetried: ", a_xretries); 610 PR("FIFO Underrun: ", fifo_underrun); 611 PR("TXOP Exceeded: ", xtxop); 612 PR("TXTIMER Expiry: ", timer_exp); 613 PR("DESC CFG Error: ", desc_cfg_err); 614 PR("DATA Underrun: ", data_underrun); 615 PR("DELIM Underrun: ", delim_underrun); 616 PR("TX-Pkts-All: ", tx_pkts_all); 617 PR("TX-Bytes-All: ", tx_bytes_all); 618 PR("hw-put-tx-buf: ", puttxbuf); 619 PR("hw-tx-start: ", txstart); 620 PR("hw-tx-proc-desc: ", txprocdesc); 621 len += snprintf(buf + len, size - len, 622 "%s%11p%11p%10p%10p\n", "txq-memory-address:", 623 sc->tx.txq_map[WME_AC_BE], 624 sc->tx.txq_map[WME_AC_BK], 625 sc->tx.txq_map[WME_AC_VI], 626 sc->tx.txq_map[WME_AC_VO]); 627 if (len >= size) 628 goto done; 629 630 PRX("axq-qnum: ", axq_qnum); 631 PRX("axq-depth: ", axq_depth); 632 PRX("axq-ampdu_depth: ", axq_ampdu_depth); 633 PRX("axq-stopped ", stopped); 634 PRX("tx-in-progress ", axq_tx_inprogress); 635 PRX("pending-frames ", pending_frames); 636 PRX("txq_headidx: ", txq_headidx); 637 PRX("txq_tailidx: ", txq_headidx); 638 639 PRQLE("axq_q empty: ", axq_q); 640 PRQLE("axq_acq empty: ", axq_acq); 641 for (i = 0; i < ATH_TXFIFO_DEPTH; i++) { 642 snprintf(tmp, sizeof(tmp) - 1, "txq_fifo[%i] empty: ", i); 643 PRQLE(tmp, txq_fifo[i]); 644 } 645 646 /* Print out more detailed queue-info */ 647 for (i = 0; i <= WME_AC_BK; i++) { 648 struct ath_txq *txq = &(sc->tx.txq[i]); 649 struct ath_atx_ac *ac; 650 struct ath_atx_tid *tid; 651 if (len >= size) 652 goto done; 653 spin_lock_bh(&txq->axq_lock); 654 if (!list_empty(&txq->axq_acq)) { 655 ac = list_first_entry(&txq->axq_acq, struct ath_atx_ac, 656 list); 657 len += snprintf(buf + len, size - len, 658 "txq[%i] first-ac: %p sched: %i\n", 659 i, ac, ac->sched); 660 if (list_empty(&ac->tid_q) || (len >= size)) 661 goto done_for; 662 tid = list_first_entry(&ac->tid_q, struct ath_atx_tid, 663 list); 664 len += snprintf(buf + len, size - len, 665 " first-tid: %p sched: %i paused: %i\n", 666 tid, tid->sched, tid->paused); 667 } 668 done_for: 669 spin_unlock_bh(&txq->axq_lock); 670 } 671 672 done: 673 if (len > size) 674 len = size; 675 676 retval = simple_read_from_buffer(user_buf, count, ppos, buf, len); 677 kfree(buf); 678 679 return retval; 680 } 681 682 static ssize_t read_file_stations(struct file *file, char __user *user_buf, 683 size_t count, loff_t *ppos) 684 { 685 struct ath_softc *sc = file->private_data; 686 char *buf; 687 unsigned int len = 0, size = 64000; 688 struct ath_node *an = NULL; 689 ssize_t retval = 0; 690 int q; 691 692 buf = kzalloc(size, GFP_KERNEL); 693 if (buf == NULL) 694 return -ENOMEM; 695 696 len += snprintf(buf + len, size - len, 697 "Stations:\n" 698 " tid: addr sched paused buf_q-empty an ac\n" 699 " ac: addr sched tid_q-empty txq\n"); 700 701 spin_lock(&sc->nodes_lock); 702 list_for_each_entry(an, &sc->nodes, list) { 703 len += snprintf(buf + len, size - len, 704 "%pM\n", an->sta->addr); 705 if (len >= size) 706 goto done; 707 708 for (q = 0; q < WME_NUM_TID; q++) { 709 struct ath_atx_tid *tid = &(an->tid[q]); 710 len += snprintf(buf + len, size - len, 711 " tid: %p %s %s %i %p %p\n", 712 tid, tid->sched ? "sched" : "idle", 713 tid->paused ? "paused" : "running", 714 list_empty(&tid->buf_q), 715 tid->an, tid->ac); 716 if (len >= size) 717 goto done; 718 } 719 720 for (q = 0; q < WME_NUM_AC; q++) { 721 struct ath_atx_ac *ac = &(an->ac[q]); 722 len += snprintf(buf + len, size - len, 723 " ac: %p %s %i %p\n", 724 ac, ac->sched ? "sched" : "idle", 725 list_empty(&ac->tid_q), ac->txq); 726 if (len >= size) 727 goto done; 728 } 729 } 730 731 done: 732 spin_unlock(&sc->nodes_lock); 733 if (len > size) 734 len = size; 735 736 retval = simple_read_from_buffer(user_buf, count, ppos, buf, len); 737 kfree(buf); 738 739 return retval; 740 } 741 742 static ssize_t read_file_misc(struct file *file, char __user *user_buf, 743 size_t count, loff_t *ppos) 744 { 745 struct ath_softc *sc = file->private_data; 746 struct ath_common *common = ath9k_hw_common(sc->sc_ah); 747 struct ath_hw *ah = sc->sc_ah; 748 struct ieee80211_hw *hw = sc->hw; 749 char *buf; 750 unsigned int len = 0, size = 8000; 751 ssize_t retval = 0; 752 unsigned int reg; 753 struct ath9k_vif_iter_data iter_data; 754 755 ath9k_calculate_iter_data(hw, NULL, &iter_data); 756 757 buf = kzalloc(size, GFP_KERNEL); 758 if (buf == NULL) 759 return -ENOMEM; 760 761 ath9k_ps_wakeup(sc); 762 len += snprintf(buf + len, size - len, 763 "curbssid: %pM\n" 764 "OP-Mode: %s(%i)\n" 765 "Beacon-Timer-Register: 0x%x\n", 766 common->curbssid, 767 ath_opmode_to_string(sc->sc_ah->opmode), 768 (int)(sc->sc_ah->opmode), 769 REG_READ(ah, AR_BEACON_PERIOD)); 770 771 reg = REG_READ(ah, AR_TIMER_MODE); 772 ath9k_ps_restore(sc); 773 len += snprintf(buf + len, size - len, "Timer-Mode-Register: 0x%x (", 774 reg); 775 if (reg & AR_TBTT_TIMER_EN) 776 len += snprintf(buf + len, size - len, "TBTT "); 777 if (reg & AR_DBA_TIMER_EN) 778 len += snprintf(buf + len, size - len, "DBA "); 779 if (reg & AR_SWBA_TIMER_EN) 780 len += snprintf(buf + len, size - len, "SWBA "); 781 if (reg & AR_HCF_TIMER_EN) 782 len += snprintf(buf + len, size - len, "HCF "); 783 if (reg & AR_TIM_TIMER_EN) 784 len += snprintf(buf + len, size - len, "TIM "); 785 if (reg & AR_DTIM_TIMER_EN) 786 len += snprintf(buf + len, size - len, "DTIM "); 787 len += snprintf(buf + len, size - len, ")\n"); 788 789 reg = sc->sc_ah->imask; 790 len += snprintf(buf + len, size - len, "imask: 0x%x (", reg); 791 if (reg & ATH9K_INT_SWBA) 792 len += snprintf(buf + len, size - len, "SWBA "); 793 if (reg & ATH9K_INT_BMISS) 794 len += snprintf(buf + len, size - len, "BMISS "); 795 if (reg & ATH9K_INT_CST) 796 len += snprintf(buf + len, size - len, "CST "); 797 if (reg & ATH9K_INT_RX) 798 len += snprintf(buf + len, size - len, "RX "); 799 if (reg & ATH9K_INT_RXHP) 800 len += snprintf(buf + len, size - len, "RXHP "); 801 if (reg & ATH9K_INT_RXLP) 802 len += snprintf(buf + len, size - len, "RXLP "); 803 if (reg & ATH9K_INT_BB_WATCHDOG) 804 len += snprintf(buf + len, size - len, "BB_WATCHDOG "); 805 /* there are other IRQs if one wanted to add them. */ 806 len += snprintf(buf + len, size - len, ")\n"); 807 808 len += snprintf(buf + len, size - len, 809 "VIF Counts: AP: %i STA: %i MESH: %i WDS: %i" 810 " ADHOC: %i OTHER: %i nvifs: %hi beacon-vifs: %hi\n", 811 iter_data.naps, iter_data.nstations, iter_data.nmeshes, 812 iter_data.nwds, iter_data.nadhocs, iter_data.nothers, 813 sc->nvifs, sc->nbcnvifs); 814 815 len += snprintf(buf + len, size - len, 816 "Calculated-BSSID-Mask: %pM\n", 817 iter_data.mask); 818 819 if (len > size) 820 len = size; 821 822 retval = simple_read_from_buffer(user_buf, count, ppos, buf, len); 823 kfree(buf); 824 825 return retval; 826 } 827 828 void ath_debug_stat_tx(struct ath_softc *sc, struct ath_buf *bf, 829 struct ath_tx_status *ts, struct ath_txq *txq) 830 { 831 int qnum = txq->axq_qnum; 832 833 TX_STAT_INC(qnum, tx_pkts_all); 834 sc->debug.stats.txstats[qnum].tx_bytes_all += bf->bf_mpdu->len; 835 836 if (bf_isampdu(bf)) { 837 if (bf_isxretried(bf)) 838 TX_STAT_INC(qnum, a_xretries); 839 else 840 TX_STAT_INC(qnum, a_completed); 841 } else { 842 if (bf_isxretried(bf)) 843 TX_STAT_INC(qnum, xretries); 844 else 845 TX_STAT_INC(qnum, completed); 846 } 847 848 if (ts->ts_status & ATH9K_TXERR_FIFO) 849 TX_STAT_INC(qnum, fifo_underrun); 850 if (ts->ts_status & ATH9K_TXERR_XTXOP) 851 TX_STAT_INC(qnum, xtxop); 852 if (ts->ts_status & ATH9K_TXERR_TIMER_EXPIRED) 853 TX_STAT_INC(qnum, timer_exp); 854 if (ts->ts_flags & ATH9K_TX_DESC_CFG_ERR) 855 TX_STAT_INC(qnum, desc_cfg_err); 856 if (ts->ts_flags & ATH9K_TX_DATA_UNDERRUN) 857 TX_STAT_INC(qnum, data_underrun); 858 if (ts->ts_flags & ATH9K_TX_DELIM_UNDERRUN) 859 TX_STAT_INC(qnum, delim_underrun); 860 } 861 862 static const struct file_operations fops_xmit = { 863 .read = read_file_xmit, 864 .open = ath9k_debugfs_open, 865 .owner = THIS_MODULE, 866 .llseek = default_llseek, 867 }; 868 869 static const struct file_operations fops_stations = { 870 .read = read_file_stations, 871 .open = ath9k_debugfs_open, 872 .owner = THIS_MODULE, 873 .llseek = default_llseek, 874 }; 875 876 static const struct file_operations fops_misc = { 877 .read = read_file_misc, 878 .open = ath9k_debugfs_open, 879 .owner = THIS_MODULE, 880 .llseek = default_llseek, 881 }; 882 883 static ssize_t read_file_recv(struct file *file, char __user *user_buf, 884 size_t count, loff_t *ppos) 885 { 886 #define PHY_ERR(s, p) \ 887 len += snprintf(buf + len, size - len, "%18s : %10u\n", s, \ 888 sc->debug.stats.rxstats.phy_err_stats[p]); 889 890 struct ath_softc *sc = file->private_data; 891 char *buf; 892 unsigned int len = 0, size = 1400; 893 ssize_t retval = 0; 894 895 buf = kzalloc(size, GFP_KERNEL); 896 if (buf == NULL) 897 return -ENOMEM; 898 899 len += snprintf(buf + len, size - len, 900 "%18s : %10u\n", "CRC ERR", 901 sc->debug.stats.rxstats.crc_err); 902 len += snprintf(buf + len, size - len, 903 "%18s : %10u\n", "DECRYPT CRC ERR", 904 sc->debug.stats.rxstats.decrypt_crc_err); 905 len += snprintf(buf + len, size - len, 906 "%18s : %10u\n", "PHY ERR", 907 sc->debug.stats.rxstats.phy_err); 908 len += snprintf(buf + len, size - len, 909 "%18s : %10u\n", "MIC ERR", 910 sc->debug.stats.rxstats.mic_err); 911 len += snprintf(buf + len, size - len, 912 "%18s : %10u\n", "PRE-DELIM CRC ERR", 913 sc->debug.stats.rxstats.pre_delim_crc_err); 914 len += snprintf(buf + len, size - len, 915 "%18s : %10u\n", "POST-DELIM CRC ERR", 916 sc->debug.stats.rxstats.post_delim_crc_err); 917 len += snprintf(buf + len, size - len, 918 "%18s : %10u\n", "DECRYPT BUSY ERR", 919 sc->debug.stats.rxstats.decrypt_busy_err); 920 921 len += snprintf(buf + len, size - len, 922 "%18s : %10d\n", "RSSI-CTL0", 923 sc->debug.stats.rxstats.rs_rssi_ctl0); 924 925 len += snprintf(buf + len, size - len, 926 "%18s : %10d\n", "RSSI-CTL1", 927 sc->debug.stats.rxstats.rs_rssi_ctl1); 928 929 len += snprintf(buf + len, size - len, 930 "%18s : %10d\n", "RSSI-CTL2", 931 sc->debug.stats.rxstats.rs_rssi_ctl2); 932 933 len += snprintf(buf + len, size - len, 934 "%18s : %10d\n", "RSSI-EXT0", 935 sc->debug.stats.rxstats.rs_rssi_ext0); 936 937 len += snprintf(buf + len, size - len, 938 "%18s : %10d\n", "RSSI-EXT1", 939 sc->debug.stats.rxstats.rs_rssi_ext1); 940 941 len += snprintf(buf + len, size - len, 942 "%18s : %10d\n", "RSSI-EXT2", 943 sc->debug.stats.rxstats.rs_rssi_ext2); 944 945 len += snprintf(buf + len, size - len, 946 "%18s : %10d\n", "Rx Antenna", 947 sc->debug.stats.rxstats.rs_antenna); 948 949 PHY_ERR("UNDERRUN", ATH9K_PHYERR_UNDERRUN); 950 PHY_ERR("TIMING", ATH9K_PHYERR_TIMING); 951 PHY_ERR("PARITY", ATH9K_PHYERR_PARITY); 952 PHY_ERR("RATE", ATH9K_PHYERR_RATE); 953 PHY_ERR("LENGTH", ATH9K_PHYERR_LENGTH); 954 PHY_ERR("RADAR", ATH9K_PHYERR_RADAR); 955 PHY_ERR("SERVICE", ATH9K_PHYERR_SERVICE); 956 PHY_ERR("TOR", ATH9K_PHYERR_TOR); 957 PHY_ERR("OFDM-TIMING", ATH9K_PHYERR_OFDM_TIMING); 958 PHY_ERR("OFDM-SIGNAL-PARITY", ATH9K_PHYERR_OFDM_SIGNAL_PARITY); 959 PHY_ERR("OFDM-RATE", ATH9K_PHYERR_OFDM_RATE_ILLEGAL); 960 PHY_ERR("OFDM-LENGTH", ATH9K_PHYERR_OFDM_LENGTH_ILLEGAL); 961 PHY_ERR("OFDM-POWER-DROP", ATH9K_PHYERR_OFDM_POWER_DROP); 962 PHY_ERR("OFDM-SERVICE", ATH9K_PHYERR_OFDM_SERVICE); 963 PHY_ERR("OFDM-RESTART", ATH9K_PHYERR_OFDM_RESTART); 964 PHY_ERR("FALSE-RADAR-EXT", ATH9K_PHYERR_FALSE_RADAR_EXT); 965 PHY_ERR("CCK-TIMING", ATH9K_PHYERR_CCK_TIMING); 966 PHY_ERR("CCK-HEADER-CRC", ATH9K_PHYERR_CCK_HEADER_CRC); 967 PHY_ERR("CCK-RATE", ATH9K_PHYERR_CCK_RATE_ILLEGAL); 968 PHY_ERR("CCK-SERVICE", ATH9K_PHYERR_CCK_SERVICE); 969 PHY_ERR("CCK-RESTART", ATH9K_PHYERR_CCK_RESTART); 970 PHY_ERR("CCK-LENGTH", ATH9K_PHYERR_CCK_LENGTH_ILLEGAL); 971 PHY_ERR("CCK-POWER-DROP", ATH9K_PHYERR_CCK_POWER_DROP); 972 PHY_ERR("HT-CRC", ATH9K_PHYERR_HT_CRC_ERROR); 973 PHY_ERR("HT-LENGTH", ATH9K_PHYERR_HT_LENGTH_ILLEGAL); 974 PHY_ERR("HT-RATE", ATH9K_PHYERR_HT_RATE_ILLEGAL); 975 976 len += snprintf(buf + len, size - len, 977 "%18s : %10u\n", "RX-Pkts-All", 978 sc->debug.stats.rxstats.rx_pkts_all); 979 len += snprintf(buf + len, size - len, 980 "%18s : %10u\n", "RX-Bytes-All", 981 sc->debug.stats.rxstats.rx_bytes_all); 982 983 if (len > size) 984 len = size; 985 986 retval = simple_read_from_buffer(user_buf, count, ppos, buf, len); 987 kfree(buf); 988 989 return retval; 990 991 #undef PHY_ERR 992 } 993 994 void ath_debug_stat_rx(struct ath_softc *sc, struct ath_rx_status *rs) 995 { 996 #define RX_STAT_INC(c) sc->debug.stats.rxstats.c++ 997 #define RX_PHY_ERR_INC(c) sc->debug.stats.rxstats.phy_err_stats[c]++ 998 999 u32 phyerr; 1000 1001 RX_STAT_INC(rx_pkts_all); 1002 sc->debug.stats.rxstats.rx_bytes_all += rs->rs_datalen; 1003 1004 if (rs->rs_status & ATH9K_RXERR_CRC) 1005 RX_STAT_INC(crc_err); 1006 if (rs->rs_status & ATH9K_RXERR_DECRYPT) 1007 RX_STAT_INC(decrypt_crc_err); 1008 if (rs->rs_status & ATH9K_RXERR_MIC) 1009 RX_STAT_INC(mic_err); 1010 if (rs->rs_status & ATH9K_RX_DELIM_CRC_PRE) 1011 RX_STAT_INC(pre_delim_crc_err); 1012 if (rs->rs_status & ATH9K_RX_DELIM_CRC_POST) 1013 RX_STAT_INC(post_delim_crc_err); 1014 if (rs->rs_status & ATH9K_RX_DECRYPT_BUSY) 1015 RX_STAT_INC(decrypt_busy_err); 1016 1017 if (rs->rs_status & ATH9K_RXERR_PHY) { 1018 RX_STAT_INC(phy_err); 1019 phyerr = rs->rs_phyerr & 0x24; 1020 RX_PHY_ERR_INC(phyerr); 1021 } 1022 1023 sc->debug.stats.rxstats.rs_rssi_ctl0 = rs->rs_rssi_ctl0; 1024 sc->debug.stats.rxstats.rs_rssi_ctl1 = rs->rs_rssi_ctl1; 1025 sc->debug.stats.rxstats.rs_rssi_ctl2 = rs->rs_rssi_ctl2; 1026 1027 sc->debug.stats.rxstats.rs_rssi_ext0 = rs->rs_rssi_ext0; 1028 sc->debug.stats.rxstats.rs_rssi_ext1 = rs->rs_rssi_ext1; 1029 sc->debug.stats.rxstats.rs_rssi_ext2 = rs->rs_rssi_ext2; 1030 1031 sc->debug.stats.rxstats.rs_antenna = rs->rs_antenna; 1032 1033 #undef RX_STAT_INC 1034 #undef RX_PHY_ERR_INC 1035 } 1036 1037 static const struct file_operations fops_recv = { 1038 .read = read_file_recv, 1039 .open = ath9k_debugfs_open, 1040 .owner = THIS_MODULE, 1041 .llseek = default_llseek, 1042 }; 1043 1044 static ssize_t read_file_regidx(struct file *file, char __user *user_buf, 1045 size_t count, loff_t *ppos) 1046 { 1047 struct ath_softc *sc = file->private_data; 1048 char buf[32]; 1049 unsigned int len; 1050 1051 len = sprintf(buf, "0x%08x\n", sc->debug.regidx); 1052 return simple_read_from_buffer(user_buf, count, ppos, buf, len); 1053 } 1054 1055 static ssize_t write_file_regidx(struct file *file, const char __user *user_buf, 1056 size_t count, loff_t *ppos) 1057 { 1058 struct ath_softc *sc = file->private_data; 1059 unsigned long regidx; 1060 char buf[32]; 1061 ssize_t len; 1062 1063 len = min(count, sizeof(buf) - 1); 1064 if (copy_from_user(buf, user_buf, len)) 1065 return -EFAULT; 1066 1067 buf[len] = '\0'; 1068 if (strict_strtoul(buf, 0, ®idx)) 1069 return -EINVAL; 1070 1071 sc->debug.regidx = regidx; 1072 return count; 1073 } 1074 1075 static const struct file_operations fops_regidx = { 1076 .read = read_file_regidx, 1077 .write = write_file_regidx, 1078 .open = ath9k_debugfs_open, 1079 .owner = THIS_MODULE, 1080 .llseek = default_llseek, 1081 }; 1082 1083 static ssize_t read_file_regval(struct file *file, char __user *user_buf, 1084 size_t count, loff_t *ppos) 1085 { 1086 struct ath_softc *sc = file->private_data; 1087 struct ath_hw *ah = sc->sc_ah; 1088 char buf[32]; 1089 unsigned int len; 1090 u32 regval; 1091 1092 ath9k_ps_wakeup(sc); 1093 regval = REG_READ_D(ah, sc->debug.regidx); 1094 ath9k_ps_restore(sc); 1095 len = sprintf(buf, "0x%08x\n", regval); 1096 return simple_read_from_buffer(user_buf, count, ppos, buf, len); 1097 } 1098 1099 static ssize_t write_file_regval(struct file *file, const char __user *user_buf, 1100 size_t count, loff_t *ppos) 1101 { 1102 struct ath_softc *sc = file->private_data; 1103 struct ath_hw *ah = sc->sc_ah; 1104 unsigned long regval; 1105 char buf[32]; 1106 ssize_t len; 1107 1108 len = min(count, sizeof(buf) - 1); 1109 if (copy_from_user(buf, user_buf, len)) 1110 return -EFAULT; 1111 1112 buf[len] = '\0'; 1113 if (strict_strtoul(buf, 0, ®val)) 1114 return -EINVAL; 1115 1116 ath9k_ps_wakeup(sc); 1117 REG_WRITE_D(ah, sc->debug.regidx, regval); 1118 ath9k_ps_restore(sc); 1119 return count; 1120 } 1121 1122 static const struct file_operations fops_regval = { 1123 .read = read_file_regval, 1124 .write = write_file_regval, 1125 .open = ath9k_debugfs_open, 1126 .owner = THIS_MODULE, 1127 .llseek = default_llseek, 1128 }; 1129 1130 #define REGDUMP_LINE_SIZE 20 1131 1132 static int open_file_regdump(struct inode *inode, struct file *file) 1133 { 1134 struct ath_softc *sc = inode->i_private; 1135 unsigned int len = 0; 1136 u8 *buf; 1137 int i; 1138 unsigned long num_regs, regdump_len, max_reg_offset; 1139 1140 max_reg_offset = AR_SREV_9300_20_OR_LATER(sc->sc_ah) ? 0x16bd4 : 0xb500; 1141 num_regs = max_reg_offset / 4 + 1; 1142 regdump_len = num_regs * REGDUMP_LINE_SIZE + 1; 1143 buf = vmalloc(regdump_len); 1144 if (!buf) 1145 return -ENOMEM; 1146 1147 ath9k_ps_wakeup(sc); 1148 for (i = 0; i < num_regs; i++) 1149 len += scnprintf(buf + len, regdump_len - len, 1150 "0x%06x 0x%08x\n", i << 2, REG_READ(sc->sc_ah, i << 2)); 1151 ath9k_ps_restore(sc); 1152 1153 file->private_data = buf; 1154 1155 return 0; 1156 } 1157 1158 static const struct file_operations fops_regdump = { 1159 .open = open_file_regdump, 1160 .read = ath9k_debugfs_read_buf, 1161 .release = ath9k_debugfs_release_buf, 1162 .owner = THIS_MODULE, 1163 .llseek = default_llseek,/* read accesses f_pos */ 1164 }; 1165 1166 int ath9k_init_debug(struct ath_hw *ah) 1167 { 1168 struct ath_common *common = ath9k_hw_common(ah); 1169 struct ath_softc *sc = (struct ath_softc *) common->priv; 1170 1171 sc->debug.debugfs_phy = debugfs_create_dir("ath9k", 1172 sc->hw->wiphy->debugfsdir); 1173 if (!sc->debug.debugfs_phy) 1174 return -ENOMEM; 1175 1176 #ifdef CONFIG_ATH_DEBUG 1177 debugfs_create_file("debug", S_IRUSR | S_IWUSR, sc->debug.debugfs_phy, 1178 sc, &fops_debug); 1179 #endif 1180 debugfs_create_file("dma", S_IRUSR, sc->debug.debugfs_phy, sc, 1181 &fops_dma); 1182 debugfs_create_file("interrupt", S_IRUSR, sc->debug.debugfs_phy, sc, 1183 &fops_interrupt); 1184 debugfs_create_file("wiphy", S_IRUSR | S_IWUSR, sc->debug.debugfs_phy, 1185 sc, &fops_wiphy); 1186 debugfs_create_file("xmit", S_IRUSR, sc->debug.debugfs_phy, sc, 1187 &fops_xmit); 1188 debugfs_create_file("stations", S_IRUSR, sc->debug.debugfs_phy, sc, 1189 &fops_stations); 1190 debugfs_create_file("misc", S_IRUSR, sc->debug.debugfs_phy, sc, 1191 &fops_misc); 1192 debugfs_create_file("recv", S_IRUSR, sc->debug.debugfs_phy, sc, 1193 &fops_recv); 1194 debugfs_create_file("rx_chainmask", S_IRUSR | S_IWUSR, 1195 sc->debug.debugfs_phy, sc, &fops_rx_chainmask); 1196 debugfs_create_file("tx_chainmask", S_IRUSR | S_IWUSR, 1197 sc->debug.debugfs_phy, sc, &fops_tx_chainmask); 1198 debugfs_create_file("disable_ani", S_IRUSR | S_IWUSR, 1199 sc->debug.debugfs_phy, sc, &fops_disable_ani); 1200 debugfs_create_file("regidx", S_IRUSR | S_IWUSR, sc->debug.debugfs_phy, 1201 sc, &fops_regidx); 1202 debugfs_create_file("regval", S_IRUSR | S_IWUSR, sc->debug.debugfs_phy, 1203 sc, &fops_regval); 1204 debugfs_create_bool("ignore_extcca", S_IRUSR | S_IWUSR, 1205 sc->debug.debugfs_phy, 1206 &ah->config.cwm_ignore_extcca); 1207 debugfs_create_file("regdump", S_IRUSR, sc->debug.debugfs_phy, sc, 1208 &fops_regdump); 1209 1210 debugfs_create_u32("gpio_mask", S_IRUSR | S_IWUSR, 1211 sc->debug.debugfs_phy, &sc->sc_ah->gpio_mask); 1212 1213 debugfs_create_u32("gpio_val", S_IRUSR | S_IWUSR, 1214 sc->debug.debugfs_phy, &sc->sc_ah->gpio_val); 1215 1216 sc->debug.regidx = 0; 1217 return 0; 1218 } 1219