1 /* 2 * Copyright (c) 2008-2009 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 }; 178 179 180 static ssize_t read_file_dma(struct file *file, char __user *user_buf, 181 size_t count, loff_t *ppos) 182 { 183 struct ath_softc *sc = file->private_data; 184 struct ath_hw *ah = sc->sc_ah; 185 char *buf; 186 int retval; 187 unsigned int len = 0; 188 u32 val[ATH9K_NUM_DMA_DEBUG_REGS]; 189 int i, qcuOffset = 0, dcuOffset = 0; 190 u32 *qcuBase = &val[0], *dcuBase = &val[4]; 191 192 buf = kmalloc(DMA_BUF_LEN, GFP_KERNEL); 193 if (!buf) 194 return -ENOMEM; 195 196 ath9k_ps_wakeup(sc); 197 198 REG_WRITE_D(ah, AR_MACMISC, 199 ((AR_MACMISC_DMA_OBS_LINE_8 << AR_MACMISC_DMA_OBS_S) | 200 (AR_MACMISC_MISC_OBS_BUS_1 << 201 AR_MACMISC_MISC_OBS_BUS_MSB_S))); 202 203 len += snprintf(buf + len, DMA_BUF_LEN - len, 204 "Raw DMA Debug values:\n"); 205 206 for (i = 0; i < ATH9K_NUM_DMA_DEBUG_REGS; i++) { 207 if (i % 4 == 0) 208 len += snprintf(buf + len, DMA_BUF_LEN - len, "\n"); 209 210 val[i] = REG_READ_D(ah, AR_DMADBG_0 + (i * sizeof(u32))); 211 len += snprintf(buf + len, DMA_BUF_LEN - len, "%d: %08x ", 212 i, val[i]); 213 } 214 215 len += snprintf(buf + len, DMA_BUF_LEN - len, "\n\n"); 216 len += snprintf(buf + len, DMA_BUF_LEN - len, 217 "Num QCU: chain_st fsp_ok fsp_st DCU: chain_st\n"); 218 219 for (i = 0; i < ATH9K_NUM_QUEUES; i++, qcuOffset += 4, dcuOffset += 5) { 220 if (i == 8) { 221 qcuOffset = 0; 222 qcuBase++; 223 } 224 225 if (i == 6) { 226 dcuOffset = 0; 227 dcuBase++; 228 } 229 230 len += snprintf(buf + len, DMA_BUF_LEN - len, 231 "%2d %2x %1x %2x %2x\n", 232 i, (*qcuBase & (0x7 << qcuOffset)) >> qcuOffset, 233 (*qcuBase & (0x8 << qcuOffset)) >> (qcuOffset + 3), 234 val[2] & (0x7 << (i * 3)) >> (i * 3), 235 (*dcuBase & (0x1f << dcuOffset)) >> dcuOffset); 236 } 237 238 len += snprintf(buf + len, DMA_BUF_LEN - len, "\n"); 239 240 len += snprintf(buf + len, DMA_BUF_LEN - len, 241 "qcu_stitch state: %2x qcu_fetch state: %2x\n", 242 (val[3] & 0x003c0000) >> 18, (val[3] & 0x03c00000) >> 22); 243 len += snprintf(buf + len, DMA_BUF_LEN - len, 244 "qcu_complete state: %2x dcu_complete state: %2x\n", 245 (val[3] & 0x1c000000) >> 26, (val[6] & 0x3)); 246 len += snprintf(buf + len, DMA_BUF_LEN - len, 247 "dcu_arb state: %2x dcu_fp state: %2x\n", 248 (val[5] & 0x06000000) >> 25, (val[5] & 0x38000000) >> 27); 249 len += snprintf(buf + len, DMA_BUF_LEN - len, 250 "chan_idle_dur: %3d chan_idle_dur_valid: %1d\n", 251 (val[6] & 0x000003fc) >> 2, (val[6] & 0x00000400) >> 10); 252 len += snprintf(buf + len, DMA_BUF_LEN - len, 253 "txfifo_valid_0: %1d txfifo_valid_1: %1d\n", 254 (val[6] & 0x00000800) >> 11, (val[6] & 0x00001000) >> 12); 255 len += snprintf(buf + len, DMA_BUF_LEN - len, 256 "txfifo_dcu_num_0: %2d txfifo_dcu_num_1: %2d\n", 257 (val[6] & 0x0001e000) >> 13, (val[6] & 0x001e0000) >> 17); 258 259 len += snprintf(buf + len, DMA_BUF_LEN - len, "pcu observe: 0x%x\n", 260 REG_READ_D(ah, AR_OBS_BUS_1)); 261 len += snprintf(buf + len, DMA_BUF_LEN - len, 262 "AR_CR: 0x%x\n", REG_READ_D(ah, AR_CR)); 263 264 ath9k_ps_restore(sc); 265 266 if (len > DMA_BUF_LEN) 267 len = DMA_BUF_LEN; 268 269 retval = simple_read_from_buffer(user_buf, count, ppos, buf, len); 270 kfree(buf); 271 return retval; 272 } 273 274 static const struct file_operations fops_dma = { 275 .read = read_file_dma, 276 .open = ath9k_debugfs_open, 277 .owner = THIS_MODULE, 278 .llseek = default_llseek, 279 }; 280 281 282 void ath_debug_stat_interrupt(struct ath_softc *sc, enum ath9k_int status) 283 { 284 if (status) 285 sc->debug.stats.istats.total++; 286 if (sc->sc_ah->caps.hw_caps & ATH9K_HW_CAP_EDMA) { 287 if (status & ATH9K_INT_RXLP) 288 sc->debug.stats.istats.rxlp++; 289 if (status & ATH9K_INT_RXHP) 290 sc->debug.stats.istats.rxhp++; 291 if (status & ATH9K_INT_BB_WATCHDOG) 292 sc->debug.stats.istats.bb_watchdog++; 293 } else { 294 if (status & ATH9K_INT_RX) 295 sc->debug.stats.istats.rxok++; 296 } 297 if (status & ATH9K_INT_RXEOL) 298 sc->debug.stats.istats.rxeol++; 299 if (status & ATH9K_INT_RXORN) 300 sc->debug.stats.istats.rxorn++; 301 if (status & ATH9K_INT_TX) 302 sc->debug.stats.istats.txok++; 303 if (status & ATH9K_INT_TXURN) 304 sc->debug.stats.istats.txurn++; 305 if (status & ATH9K_INT_MIB) 306 sc->debug.stats.istats.mib++; 307 if (status & ATH9K_INT_RXPHY) 308 sc->debug.stats.istats.rxphyerr++; 309 if (status & ATH9K_INT_RXKCM) 310 sc->debug.stats.istats.rx_keycache_miss++; 311 if (status & ATH9K_INT_SWBA) 312 sc->debug.stats.istats.swba++; 313 if (status & ATH9K_INT_BMISS) 314 sc->debug.stats.istats.bmiss++; 315 if (status & ATH9K_INT_BNR) 316 sc->debug.stats.istats.bnr++; 317 if (status & ATH9K_INT_CST) 318 sc->debug.stats.istats.cst++; 319 if (status & ATH9K_INT_GTT) 320 sc->debug.stats.istats.gtt++; 321 if (status & ATH9K_INT_TIM) 322 sc->debug.stats.istats.tim++; 323 if (status & ATH9K_INT_CABEND) 324 sc->debug.stats.istats.cabend++; 325 if (status & ATH9K_INT_DTIMSYNC) 326 sc->debug.stats.istats.dtimsync++; 327 if (status & ATH9K_INT_DTIM) 328 sc->debug.stats.istats.dtim++; 329 if (status & ATH9K_INT_TSFOOR) 330 sc->debug.stats.istats.tsfoor++; 331 } 332 333 static ssize_t read_file_interrupt(struct file *file, char __user *user_buf, 334 size_t count, loff_t *ppos) 335 { 336 struct ath_softc *sc = file->private_data; 337 char buf[512]; 338 unsigned int len = 0; 339 340 if (sc->sc_ah->caps.hw_caps & ATH9K_HW_CAP_EDMA) { 341 len += snprintf(buf + len, sizeof(buf) - len, 342 "%8s: %10u\n", "RXLP", sc->debug.stats.istats.rxlp); 343 len += snprintf(buf + len, sizeof(buf) - len, 344 "%8s: %10u\n", "RXHP", sc->debug.stats.istats.rxhp); 345 len += snprintf(buf + len, sizeof(buf) - len, 346 "%8s: %10u\n", "WATCHDOG", 347 sc->debug.stats.istats.bb_watchdog); 348 } else { 349 len += snprintf(buf + len, sizeof(buf) - len, 350 "%8s: %10u\n", "RX", sc->debug.stats.istats.rxok); 351 } 352 len += snprintf(buf + len, sizeof(buf) - len, 353 "%8s: %10u\n", "RXEOL", sc->debug.stats.istats.rxeol); 354 len += snprintf(buf + len, sizeof(buf) - len, 355 "%8s: %10u\n", "RXORN", sc->debug.stats.istats.rxorn); 356 len += snprintf(buf + len, sizeof(buf) - len, 357 "%8s: %10u\n", "TX", sc->debug.stats.istats.txok); 358 len += snprintf(buf + len, sizeof(buf) - len, 359 "%8s: %10u\n", "TXURN", sc->debug.stats.istats.txurn); 360 len += snprintf(buf + len, sizeof(buf) - len, 361 "%8s: %10u\n", "MIB", sc->debug.stats.istats.mib); 362 len += snprintf(buf + len, sizeof(buf) - len, 363 "%8s: %10u\n", "RXPHY", sc->debug.stats.istats.rxphyerr); 364 len += snprintf(buf + len, sizeof(buf) - len, 365 "%8s: %10u\n", "RXKCM", sc->debug.stats.istats.rx_keycache_miss); 366 len += snprintf(buf + len, sizeof(buf) - len, 367 "%8s: %10u\n", "SWBA", sc->debug.stats.istats.swba); 368 len += snprintf(buf + len, sizeof(buf) - len, 369 "%8s: %10u\n", "BMISS", sc->debug.stats.istats.bmiss); 370 len += snprintf(buf + len, sizeof(buf) - len, 371 "%8s: %10u\n", "BNR", sc->debug.stats.istats.bnr); 372 len += snprintf(buf + len, sizeof(buf) - len, 373 "%8s: %10u\n", "CST", sc->debug.stats.istats.cst); 374 len += snprintf(buf + len, sizeof(buf) - len, 375 "%8s: %10u\n", "GTT", sc->debug.stats.istats.gtt); 376 len += snprintf(buf + len, sizeof(buf) - len, 377 "%8s: %10u\n", "TIM", sc->debug.stats.istats.tim); 378 len += snprintf(buf + len, sizeof(buf) - len, 379 "%8s: %10u\n", "CABEND", sc->debug.stats.istats.cabend); 380 len += snprintf(buf + len, sizeof(buf) - len, 381 "%8s: %10u\n", "DTIMSYNC", sc->debug.stats.istats.dtimsync); 382 len += snprintf(buf + len, sizeof(buf) - len, 383 "%8s: %10u\n", "DTIM", sc->debug.stats.istats.dtim); 384 len += snprintf(buf + len, sizeof(buf) - len, 385 "%8s: %10u\n", "TSFOOR", sc->debug.stats.istats.tsfoor); 386 len += snprintf(buf + len, sizeof(buf) - len, 387 "%8s: %10u\n", "TOTAL", sc->debug.stats.istats.total); 388 389 390 if (len > sizeof(buf)) 391 len = sizeof(buf); 392 393 return simple_read_from_buffer(user_buf, count, ppos, buf, len); 394 } 395 396 static const struct file_operations fops_interrupt = { 397 .read = read_file_interrupt, 398 .open = ath9k_debugfs_open, 399 .owner = THIS_MODULE, 400 .llseek = default_llseek, 401 }; 402 403 static const char *channel_type_str(enum nl80211_channel_type t) 404 { 405 switch (t) { 406 case NL80211_CHAN_NO_HT: 407 return "no ht"; 408 case NL80211_CHAN_HT20: 409 return "ht20"; 410 case NL80211_CHAN_HT40MINUS: 411 return "ht40-"; 412 case NL80211_CHAN_HT40PLUS: 413 return "ht40+"; 414 default: 415 return "???"; 416 } 417 } 418 419 static ssize_t read_file_wiphy(struct file *file, char __user *user_buf, 420 size_t count, loff_t *ppos) 421 { 422 struct ath_softc *sc = file->private_data; 423 struct ieee80211_channel *chan = sc->hw->conf.channel; 424 struct ieee80211_conf *conf = &(sc->hw->conf); 425 char buf[512]; 426 unsigned int len = 0; 427 u8 addr[ETH_ALEN]; 428 u32 tmp; 429 430 len += snprintf(buf + len, sizeof(buf) - len, 431 "%s (chan=%d center-freq: %d MHz channel-type: %d (%s))\n", 432 wiphy_name(sc->hw->wiphy), 433 ieee80211_frequency_to_channel(chan->center_freq), 434 chan->center_freq, 435 conf->channel_type, 436 channel_type_str(conf->channel_type)); 437 438 put_unaligned_le32(REG_READ_D(sc->sc_ah, AR_STA_ID0), addr); 439 put_unaligned_le16(REG_READ_D(sc->sc_ah, AR_STA_ID1) & 0xffff, addr + 4); 440 len += snprintf(buf + len, sizeof(buf) - len, 441 "addr: %pM\n", addr); 442 put_unaligned_le32(REG_READ_D(sc->sc_ah, AR_BSSMSKL), addr); 443 put_unaligned_le16(REG_READ_D(sc->sc_ah, AR_BSSMSKU) & 0xffff, addr + 4); 444 len += snprintf(buf + len, sizeof(buf) - len, 445 "addrmask: %pM\n", addr); 446 tmp = ath9k_hw_getrxfilter(sc->sc_ah); 447 len += snprintf(buf + len, sizeof(buf) - len, 448 "rfilt: 0x%x", tmp); 449 if (tmp & ATH9K_RX_FILTER_UCAST) 450 len += snprintf(buf + len, sizeof(buf) - len, " UCAST"); 451 if (tmp & ATH9K_RX_FILTER_MCAST) 452 len += snprintf(buf + len, sizeof(buf) - len, " MCAST"); 453 if (tmp & ATH9K_RX_FILTER_BCAST) 454 len += snprintf(buf + len, sizeof(buf) - len, " BCAST"); 455 if (tmp & ATH9K_RX_FILTER_CONTROL) 456 len += snprintf(buf + len, sizeof(buf) - len, " CONTROL"); 457 if (tmp & ATH9K_RX_FILTER_BEACON) 458 len += snprintf(buf + len, sizeof(buf) - len, " BEACON"); 459 if (tmp & ATH9K_RX_FILTER_PROM) 460 len += snprintf(buf + len, sizeof(buf) - len, " PROM"); 461 if (tmp & ATH9K_RX_FILTER_PROBEREQ) 462 len += snprintf(buf + len, sizeof(buf) - len, " PROBEREQ"); 463 if (tmp & ATH9K_RX_FILTER_PHYERR) 464 len += snprintf(buf + len, sizeof(buf) - len, " PHYERR"); 465 if (tmp & ATH9K_RX_FILTER_MYBEACON) 466 len += snprintf(buf + len, sizeof(buf) - len, " MYBEACON"); 467 if (tmp & ATH9K_RX_FILTER_COMP_BAR) 468 len += snprintf(buf + len, sizeof(buf) - len, " COMP_BAR"); 469 if (tmp & ATH9K_RX_FILTER_PSPOLL) 470 len += snprintf(buf + len, sizeof(buf) - len, " PSPOLL"); 471 if (tmp & ATH9K_RX_FILTER_PHYRADAR) 472 len += snprintf(buf + len, sizeof(buf) - len, " PHYRADAR"); 473 if (tmp & ATH9K_RX_FILTER_MCAST_BCAST_ALL) 474 len += snprintf(buf + len, sizeof(buf) - len, " MCAST_BCAST_ALL\n"); 475 else 476 len += snprintf(buf + len, sizeof(buf) - len, "\n"); 477 478 if (len > sizeof(buf)) 479 len = sizeof(buf); 480 481 return simple_read_from_buffer(user_buf, count, ppos, buf, len); 482 } 483 484 static const struct file_operations fops_wiphy = { 485 .read = read_file_wiphy, 486 .open = ath9k_debugfs_open, 487 .owner = THIS_MODULE, 488 .llseek = default_llseek, 489 }; 490 491 #define PR_QNUM(_n) sc->tx.txq_map[_n]->axq_qnum 492 #define PR(str, elem) \ 493 do { \ 494 len += snprintf(buf + len, size - len, \ 495 "%s%13u%11u%10u%10u\n", str, \ 496 sc->debug.stats.txstats[PR_QNUM(WME_AC_BE)].elem, \ 497 sc->debug.stats.txstats[PR_QNUM(WME_AC_BK)].elem, \ 498 sc->debug.stats.txstats[PR_QNUM(WME_AC_VI)].elem, \ 499 sc->debug.stats.txstats[PR_QNUM(WME_AC_VO)].elem); \ 500 if (len >= size) \ 501 goto done; \ 502 } while(0) 503 504 #define PRX(str, elem) \ 505 do { \ 506 len += snprintf(buf + len, size - len, \ 507 "%s%13u%11u%10u%10u\n", str, \ 508 (unsigned int)(sc->tx.txq_map[WME_AC_BE]->elem), \ 509 (unsigned int)(sc->tx.txq_map[WME_AC_BK]->elem), \ 510 (unsigned int)(sc->tx.txq_map[WME_AC_VI]->elem), \ 511 (unsigned int)(sc->tx.txq_map[WME_AC_VO]->elem)); \ 512 if (len >= size) \ 513 goto done; \ 514 } while(0) 515 516 #define PRQLE(str, elem) \ 517 do { \ 518 len += snprintf(buf + len, size - len, \ 519 "%s%13i%11i%10i%10i\n", str, \ 520 list_empty(&sc->tx.txq_map[WME_AC_BE]->elem), \ 521 list_empty(&sc->tx.txq_map[WME_AC_BK]->elem), \ 522 list_empty(&sc->tx.txq_map[WME_AC_VI]->elem), \ 523 list_empty(&sc->tx.txq_map[WME_AC_VO]->elem)); \ 524 if (len >= size) \ 525 goto done; \ 526 } while (0) 527 528 static ssize_t read_file_xmit(struct file *file, char __user *user_buf, 529 size_t count, loff_t *ppos) 530 { 531 struct ath_softc *sc = file->private_data; 532 char *buf; 533 unsigned int len = 0, size = 8000; 534 int i; 535 ssize_t retval = 0; 536 char tmp[32]; 537 538 buf = kzalloc(size, GFP_KERNEL); 539 if (buf == NULL) 540 return -ENOMEM; 541 542 len += sprintf(buf, "Num-Tx-Queues: %i tx-queues-setup: 0x%x" 543 " poll-work-seen: %u\n" 544 "%30s %10s%10s%10s\n\n", 545 ATH9K_NUM_TX_QUEUES, sc->tx.txqsetup, 546 sc->tx_complete_poll_work_seen, 547 "BE", "BK", "VI", "VO"); 548 549 PR("MPDUs Queued: ", queued); 550 PR("MPDUs Completed: ", completed); 551 PR("Aggregates: ", a_aggr); 552 PR("AMPDUs Queued HW:", a_queued_hw); 553 PR("AMPDUs Queued SW:", a_queued_sw); 554 PR("AMPDUs Completed:", a_completed); 555 PR("AMPDUs Retried: ", a_retries); 556 PR("AMPDUs XRetried: ", a_xretries); 557 PR("FIFO Underrun: ", fifo_underrun); 558 PR("TXOP Exceeded: ", xtxop); 559 PR("TXTIMER Expiry: ", timer_exp); 560 PR("DESC CFG Error: ", desc_cfg_err); 561 PR("DATA Underrun: ", data_underrun); 562 PR("DELIM Underrun: ", delim_underrun); 563 PR("TX-Pkts-All: ", tx_pkts_all); 564 PR("TX-Bytes-All: ", tx_bytes_all); 565 PR("hw-put-tx-buf: ", puttxbuf); 566 PR("hw-tx-start: ", txstart); 567 PR("hw-tx-proc-desc: ", txprocdesc); 568 len += snprintf(buf + len, size - len, 569 "%s%11p%11p%10p%10p\n", "txq-memory-address:", 570 sc->tx.txq_map[WME_AC_BE], 571 sc->tx.txq_map[WME_AC_BK], 572 sc->tx.txq_map[WME_AC_VI], 573 sc->tx.txq_map[WME_AC_VO]); 574 if (len >= size) 575 goto done; 576 577 PRX("axq-qnum: ", axq_qnum); 578 PRX("axq-depth: ", axq_depth); 579 PRX("axq-ampdu_depth: ", axq_ampdu_depth); 580 PRX("axq-stopped ", stopped); 581 PRX("tx-in-progress ", axq_tx_inprogress); 582 PRX("pending-frames ", pending_frames); 583 PRX("txq_headidx: ", txq_headidx); 584 PRX("txq_tailidx: ", txq_headidx); 585 586 PRQLE("axq_q empty: ", axq_q); 587 PRQLE("axq_acq empty: ", axq_acq); 588 PRQLE("txq_fifo_pending: ", txq_fifo_pending); 589 for (i = 0; i < ATH_TXFIFO_DEPTH; i++) { 590 snprintf(tmp, sizeof(tmp) - 1, "txq_fifo[%i] empty: ", i); 591 PRQLE(tmp, txq_fifo[i]); 592 } 593 594 /* Print out more detailed queue-info */ 595 for (i = 0; i <= WME_AC_BK; i++) { 596 struct ath_txq *txq = &(sc->tx.txq[i]); 597 struct ath_atx_ac *ac; 598 struct ath_atx_tid *tid; 599 if (len >= size) 600 goto done; 601 spin_lock_bh(&txq->axq_lock); 602 if (!list_empty(&txq->axq_acq)) { 603 ac = list_first_entry(&txq->axq_acq, struct ath_atx_ac, 604 list); 605 len += snprintf(buf + len, size - len, 606 "txq[%i] first-ac: %p sched: %i\n", 607 i, ac, ac->sched); 608 if (list_empty(&ac->tid_q) || (len >= size)) 609 goto done_for; 610 tid = list_first_entry(&ac->tid_q, struct ath_atx_tid, 611 list); 612 len += snprintf(buf + len, size - len, 613 " first-tid: %p sched: %i paused: %i\n", 614 tid, tid->sched, tid->paused); 615 } 616 done_for: 617 spin_unlock_bh(&txq->axq_lock); 618 } 619 620 done: 621 if (len > size) 622 len = size; 623 624 retval = simple_read_from_buffer(user_buf, count, ppos, buf, len); 625 kfree(buf); 626 627 return retval; 628 } 629 630 static ssize_t read_file_stations(struct file *file, char __user *user_buf, 631 size_t count, loff_t *ppos) 632 { 633 struct ath_softc *sc = file->private_data; 634 char *buf; 635 unsigned int len = 0, size = 64000; 636 struct ath_node *an = NULL; 637 ssize_t retval = 0; 638 int q; 639 640 buf = kzalloc(size, GFP_KERNEL); 641 if (buf == NULL) 642 return -ENOMEM; 643 644 len += snprintf(buf + len, size - len, 645 "Stations:\n" 646 " tid: addr sched paused buf_q-empty an ac\n" 647 " ac: addr sched tid_q-empty txq\n"); 648 649 spin_lock(&sc->nodes_lock); 650 list_for_each_entry(an, &sc->nodes, list) { 651 len += snprintf(buf + len, size - len, 652 "%pM\n", an->sta->addr); 653 if (len >= size) 654 goto done; 655 656 for (q = 0; q < WME_NUM_TID; q++) { 657 struct ath_atx_tid *tid = &(an->tid[q]); 658 len += snprintf(buf + len, size - len, 659 " tid: %p %s %s %i %p %p\n", 660 tid, tid->sched ? "sched" : "idle", 661 tid->paused ? "paused" : "running", 662 list_empty(&tid->buf_q), 663 tid->an, tid->ac); 664 if (len >= size) 665 goto done; 666 } 667 668 for (q = 0; q < WME_NUM_AC; q++) { 669 struct ath_atx_ac *ac = &(an->ac[q]); 670 len += snprintf(buf + len, size - len, 671 " ac: %p %s %i %p\n", 672 ac, ac->sched ? "sched" : "idle", 673 list_empty(&ac->tid_q), ac->txq); 674 if (len >= size) 675 goto done; 676 } 677 } 678 679 done: 680 spin_unlock(&sc->nodes_lock); 681 if (len > size) 682 len = size; 683 684 retval = simple_read_from_buffer(user_buf, count, ppos, buf, len); 685 kfree(buf); 686 687 return retval; 688 } 689 690 static ssize_t read_file_misc(struct file *file, char __user *user_buf, 691 size_t count, loff_t *ppos) 692 { 693 struct ath_softc *sc = file->private_data; 694 struct ath_common *common = ath9k_hw_common(sc->sc_ah); 695 struct ath_hw *ah = sc->sc_ah; 696 struct ieee80211_hw *hw = sc->hw; 697 char *buf; 698 unsigned int len = 0, size = 8000; 699 ssize_t retval = 0; 700 const char *tmp; 701 unsigned int reg; 702 struct ath9k_vif_iter_data iter_data; 703 704 ath9k_calculate_iter_data(hw, NULL, &iter_data); 705 706 buf = kzalloc(size, GFP_KERNEL); 707 if (buf == NULL) 708 return -ENOMEM; 709 710 switch (sc->sc_ah->opmode) { 711 case NL80211_IFTYPE_ADHOC: 712 tmp = "ADHOC"; 713 break; 714 case NL80211_IFTYPE_MESH_POINT: 715 tmp = "MESH"; 716 break; 717 case NL80211_IFTYPE_AP: 718 tmp = "AP"; 719 break; 720 case NL80211_IFTYPE_STATION: 721 tmp = "STATION"; 722 break; 723 default: 724 tmp = "???"; 725 break; 726 } 727 728 len += snprintf(buf + len, size - len, 729 "curbssid: %pM\n" 730 "OP-Mode: %s(%i)\n" 731 "Beacon-Timer-Register: 0x%x\n", 732 common->curbssid, 733 tmp, (int)(sc->sc_ah->opmode), 734 REG_READ(ah, AR_BEACON_PERIOD)); 735 736 reg = REG_READ(ah, AR_TIMER_MODE); 737 len += snprintf(buf + len, size - len, "Timer-Mode-Register: 0x%x (", 738 reg); 739 if (reg & AR_TBTT_TIMER_EN) 740 len += snprintf(buf + len, size - len, "TBTT "); 741 if (reg & AR_DBA_TIMER_EN) 742 len += snprintf(buf + len, size - len, "DBA "); 743 if (reg & AR_SWBA_TIMER_EN) 744 len += snprintf(buf + len, size - len, "SWBA "); 745 if (reg & AR_HCF_TIMER_EN) 746 len += snprintf(buf + len, size - len, "HCF "); 747 if (reg & AR_TIM_TIMER_EN) 748 len += snprintf(buf + len, size - len, "TIM "); 749 if (reg & AR_DTIM_TIMER_EN) 750 len += snprintf(buf + len, size - len, "DTIM "); 751 len += snprintf(buf + len, size - len, ")\n"); 752 753 reg = sc->sc_ah->imask; 754 len += snprintf(buf + len, size - len, "imask: 0x%x (", reg); 755 if (reg & ATH9K_INT_SWBA) 756 len += snprintf(buf + len, size - len, "SWBA "); 757 if (reg & ATH9K_INT_BMISS) 758 len += snprintf(buf + len, size - len, "BMISS "); 759 if (reg & ATH9K_INT_CST) 760 len += snprintf(buf + len, size - len, "CST "); 761 if (reg & ATH9K_INT_RX) 762 len += snprintf(buf + len, size - len, "RX "); 763 if (reg & ATH9K_INT_RXHP) 764 len += snprintf(buf + len, size - len, "RXHP "); 765 if (reg & ATH9K_INT_RXLP) 766 len += snprintf(buf + len, size - len, "RXLP "); 767 if (reg & ATH9K_INT_BB_WATCHDOG) 768 len += snprintf(buf + len, size - len, "BB_WATCHDOG "); 769 /* there are other IRQs if one wanted to add them. */ 770 len += snprintf(buf + len, size - len, ")\n"); 771 772 len += snprintf(buf + len, size - len, 773 "VIF Counts: AP: %i STA: %i MESH: %i WDS: %i" 774 " ADHOC: %i OTHER: %i nvifs: %hi beacon-vifs: %hi\n", 775 iter_data.naps, iter_data.nstations, iter_data.nmeshes, 776 iter_data.nwds, iter_data.nadhocs, iter_data.nothers, 777 sc->nvifs, sc->nbcnvifs); 778 779 len += snprintf(buf + len, size - len, 780 "Calculated-BSSID-Mask: %pM\n", 781 iter_data.mask); 782 783 if (len > size) 784 len = size; 785 786 retval = simple_read_from_buffer(user_buf, count, ppos, buf, len); 787 kfree(buf); 788 789 return retval; 790 } 791 792 void ath_debug_stat_tx(struct ath_softc *sc, struct ath_buf *bf, 793 struct ath_tx_status *ts, struct ath_txq *txq) 794 { 795 int qnum = txq->axq_qnum; 796 797 TX_STAT_INC(qnum, tx_pkts_all); 798 sc->debug.stats.txstats[qnum].tx_bytes_all += bf->bf_mpdu->len; 799 800 if (bf_isampdu(bf)) { 801 if (bf_isxretried(bf)) 802 TX_STAT_INC(qnum, a_xretries); 803 else 804 TX_STAT_INC(qnum, a_completed); 805 } else { 806 TX_STAT_INC(qnum, completed); 807 } 808 809 if (ts->ts_status & ATH9K_TXERR_FIFO) 810 TX_STAT_INC(qnum, fifo_underrun); 811 if (ts->ts_status & ATH9K_TXERR_XTXOP) 812 TX_STAT_INC(qnum, xtxop); 813 if (ts->ts_status & ATH9K_TXERR_TIMER_EXPIRED) 814 TX_STAT_INC(qnum, timer_exp); 815 if (ts->ts_flags & ATH9K_TX_DESC_CFG_ERR) 816 TX_STAT_INC(qnum, desc_cfg_err); 817 if (ts->ts_flags & ATH9K_TX_DATA_UNDERRUN) 818 TX_STAT_INC(qnum, data_underrun); 819 if (ts->ts_flags & ATH9K_TX_DELIM_UNDERRUN) 820 TX_STAT_INC(qnum, delim_underrun); 821 } 822 823 static const struct file_operations fops_xmit = { 824 .read = read_file_xmit, 825 .open = ath9k_debugfs_open, 826 .owner = THIS_MODULE, 827 .llseek = default_llseek, 828 }; 829 830 static const struct file_operations fops_stations = { 831 .read = read_file_stations, 832 .open = ath9k_debugfs_open, 833 .owner = THIS_MODULE, 834 .llseek = default_llseek, 835 }; 836 837 static const struct file_operations fops_misc = { 838 .read = read_file_misc, 839 .open = ath9k_debugfs_open, 840 .owner = THIS_MODULE, 841 .llseek = default_llseek, 842 }; 843 844 static ssize_t read_file_recv(struct file *file, char __user *user_buf, 845 size_t count, loff_t *ppos) 846 { 847 #define PHY_ERR(s, p) \ 848 len += snprintf(buf + len, size - len, "%18s : %10u\n", s, \ 849 sc->debug.stats.rxstats.phy_err_stats[p]); 850 851 struct ath_softc *sc = file->private_data; 852 char *buf; 853 unsigned int len = 0, size = 1400; 854 ssize_t retval = 0; 855 856 buf = kzalloc(size, GFP_KERNEL); 857 if (buf == NULL) 858 return -ENOMEM; 859 860 len += snprintf(buf + len, size - len, 861 "%18s : %10u\n", "CRC ERR", 862 sc->debug.stats.rxstats.crc_err); 863 len += snprintf(buf + len, size - len, 864 "%18s : %10u\n", "DECRYPT CRC ERR", 865 sc->debug.stats.rxstats.decrypt_crc_err); 866 len += snprintf(buf + len, size - len, 867 "%18s : %10u\n", "PHY ERR", 868 sc->debug.stats.rxstats.phy_err); 869 len += snprintf(buf + len, size - len, 870 "%18s : %10u\n", "MIC ERR", 871 sc->debug.stats.rxstats.mic_err); 872 len += snprintf(buf + len, size - len, 873 "%18s : %10u\n", "PRE-DELIM CRC ERR", 874 sc->debug.stats.rxstats.pre_delim_crc_err); 875 len += snprintf(buf + len, size - len, 876 "%18s : %10u\n", "POST-DELIM CRC ERR", 877 sc->debug.stats.rxstats.post_delim_crc_err); 878 len += snprintf(buf + len, size - len, 879 "%18s : %10u\n", "DECRYPT BUSY ERR", 880 sc->debug.stats.rxstats.decrypt_busy_err); 881 882 len += snprintf(buf + len, size - len, 883 "%18s : %10d\n", "RSSI-CTL0", 884 sc->debug.stats.rxstats.rs_rssi_ctl0); 885 886 len += snprintf(buf + len, size - len, 887 "%18s : %10d\n", "RSSI-CTL1", 888 sc->debug.stats.rxstats.rs_rssi_ctl1); 889 890 len += snprintf(buf + len, size - len, 891 "%18s : %10d\n", "RSSI-CTL2", 892 sc->debug.stats.rxstats.rs_rssi_ctl2); 893 894 len += snprintf(buf + len, size - len, 895 "%18s : %10d\n", "RSSI-EXT0", 896 sc->debug.stats.rxstats.rs_rssi_ext0); 897 898 len += snprintf(buf + len, size - len, 899 "%18s : %10d\n", "RSSI-EXT1", 900 sc->debug.stats.rxstats.rs_rssi_ext1); 901 902 len += snprintf(buf + len, size - len, 903 "%18s : %10d\n", "RSSI-EXT2", 904 sc->debug.stats.rxstats.rs_rssi_ext2); 905 906 len += snprintf(buf + len, size - len, 907 "%18s : %10d\n", "Rx Antenna", 908 sc->debug.stats.rxstats.rs_antenna); 909 910 PHY_ERR("UNDERRUN", ATH9K_PHYERR_UNDERRUN); 911 PHY_ERR("TIMING", ATH9K_PHYERR_TIMING); 912 PHY_ERR("PARITY", ATH9K_PHYERR_PARITY); 913 PHY_ERR("RATE", ATH9K_PHYERR_RATE); 914 PHY_ERR("LENGTH", ATH9K_PHYERR_LENGTH); 915 PHY_ERR("RADAR", ATH9K_PHYERR_RADAR); 916 PHY_ERR("SERVICE", ATH9K_PHYERR_SERVICE); 917 PHY_ERR("TOR", ATH9K_PHYERR_TOR); 918 PHY_ERR("OFDM-TIMING", ATH9K_PHYERR_OFDM_TIMING); 919 PHY_ERR("OFDM-SIGNAL-PARITY", ATH9K_PHYERR_OFDM_SIGNAL_PARITY); 920 PHY_ERR("OFDM-RATE", ATH9K_PHYERR_OFDM_RATE_ILLEGAL); 921 PHY_ERR("OFDM-LENGTH", ATH9K_PHYERR_OFDM_LENGTH_ILLEGAL); 922 PHY_ERR("OFDM-POWER-DROP", ATH9K_PHYERR_OFDM_POWER_DROP); 923 PHY_ERR("OFDM-SERVICE", ATH9K_PHYERR_OFDM_SERVICE); 924 PHY_ERR("OFDM-RESTART", ATH9K_PHYERR_OFDM_RESTART); 925 PHY_ERR("FALSE-RADAR-EXT", ATH9K_PHYERR_FALSE_RADAR_EXT); 926 PHY_ERR("CCK-TIMING", ATH9K_PHYERR_CCK_TIMING); 927 PHY_ERR("CCK-HEADER-CRC", ATH9K_PHYERR_CCK_HEADER_CRC); 928 PHY_ERR("CCK-RATE", ATH9K_PHYERR_CCK_RATE_ILLEGAL); 929 PHY_ERR("CCK-SERVICE", ATH9K_PHYERR_CCK_SERVICE); 930 PHY_ERR("CCK-RESTART", ATH9K_PHYERR_CCK_RESTART); 931 PHY_ERR("CCK-LENGTH", ATH9K_PHYERR_CCK_LENGTH_ILLEGAL); 932 PHY_ERR("CCK-POWER-DROP", ATH9K_PHYERR_CCK_POWER_DROP); 933 PHY_ERR("HT-CRC", ATH9K_PHYERR_HT_CRC_ERROR); 934 PHY_ERR("HT-LENGTH", ATH9K_PHYERR_HT_LENGTH_ILLEGAL); 935 PHY_ERR("HT-RATE", ATH9K_PHYERR_HT_RATE_ILLEGAL); 936 937 len += snprintf(buf + len, size - len, 938 "%18s : %10u\n", "RX-Pkts-All", 939 sc->debug.stats.rxstats.rx_pkts_all); 940 len += snprintf(buf + len, size - len, 941 "%18s : %10u\n", "RX-Bytes-All", 942 sc->debug.stats.rxstats.rx_bytes_all); 943 944 if (len > size) 945 len = size; 946 947 retval = simple_read_from_buffer(user_buf, count, ppos, buf, len); 948 kfree(buf); 949 950 return retval; 951 952 #undef PHY_ERR 953 } 954 955 void ath_debug_stat_rx(struct ath_softc *sc, struct ath_rx_status *rs) 956 { 957 #define RX_STAT_INC(c) sc->debug.stats.rxstats.c++ 958 #define RX_PHY_ERR_INC(c) sc->debug.stats.rxstats.phy_err_stats[c]++ 959 960 u32 phyerr; 961 962 RX_STAT_INC(rx_pkts_all); 963 sc->debug.stats.rxstats.rx_bytes_all += rs->rs_datalen; 964 965 if (rs->rs_status & ATH9K_RXERR_CRC) 966 RX_STAT_INC(crc_err); 967 if (rs->rs_status & ATH9K_RXERR_DECRYPT) 968 RX_STAT_INC(decrypt_crc_err); 969 if (rs->rs_status & ATH9K_RXERR_MIC) 970 RX_STAT_INC(mic_err); 971 if (rs->rs_status & ATH9K_RX_DELIM_CRC_PRE) 972 RX_STAT_INC(pre_delim_crc_err); 973 if (rs->rs_status & ATH9K_RX_DELIM_CRC_POST) 974 RX_STAT_INC(post_delim_crc_err); 975 if (rs->rs_status & ATH9K_RX_DECRYPT_BUSY) 976 RX_STAT_INC(decrypt_busy_err); 977 978 if (rs->rs_status & ATH9K_RXERR_PHY) { 979 RX_STAT_INC(phy_err); 980 phyerr = rs->rs_phyerr & 0x24; 981 RX_PHY_ERR_INC(phyerr); 982 } 983 984 sc->debug.stats.rxstats.rs_rssi_ctl0 = rs->rs_rssi_ctl0; 985 sc->debug.stats.rxstats.rs_rssi_ctl1 = rs->rs_rssi_ctl1; 986 sc->debug.stats.rxstats.rs_rssi_ctl2 = rs->rs_rssi_ctl2; 987 988 sc->debug.stats.rxstats.rs_rssi_ext0 = rs->rs_rssi_ext0; 989 sc->debug.stats.rxstats.rs_rssi_ext1 = rs->rs_rssi_ext1; 990 sc->debug.stats.rxstats.rs_rssi_ext2 = rs->rs_rssi_ext2; 991 992 sc->debug.stats.rxstats.rs_antenna = rs->rs_antenna; 993 994 #undef RX_STAT_INC 995 #undef RX_PHY_ERR_INC 996 } 997 998 static const struct file_operations fops_recv = { 999 .read = read_file_recv, 1000 .open = ath9k_debugfs_open, 1001 .owner = THIS_MODULE, 1002 .llseek = default_llseek, 1003 }; 1004 1005 static ssize_t read_file_regidx(struct file *file, char __user *user_buf, 1006 size_t count, loff_t *ppos) 1007 { 1008 struct ath_softc *sc = file->private_data; 1009 char buf[32]; 1010 unsigned int len; 1011 1012 len = sprintf(buf, "0x%08x\n", sc->debug.regidx); 1013 return simple_read_from_buffer(user_buf, count, ppos, buf, len); 1014 } 1015 1016 static ssize_t write_file_regidx(struct file *file, const char __user *user_buf, 1017 size_t count, loff_t *ppos) 1018 { 1019 struct ath_softc *sc = file->private_data; 1020 unsigned long regidx; 1021 char buf[32]; 1022 ssize_t len; 1023 1024 len = min(count, sizeof(buf) - 1); 1025 if (copy_from_user(buf, user_buf, len)) 1026 return -EFAULT; 1027 1028 buf[len] = '\0'; 1029 if (strict_strtoul(buf, 0, ®idx)) 1030 return -EINVAL; 1031 1032 sc->debug.regidx = regidx; 1033 return count; 1034 } 1035 1036 static const struct file_operations fops_regidx = { 1037 .read = read_file_regidx, 1038 .write = write_file_regidx, 1039 .open = ath9k_debugfs_open, 1040 .owner = THIS_MODULE, 1041 .llseek = default_llseek, 1042 }; 1043 1044 static ssize_t read_file_regval(struct file *file, char __user *user_buf, 1045 size_t count, loff_t *ppos) 1046 { 1047 struct ath_softc *sc = file->private_data; 1048 struct ath_hw *ah = sc->sc_ah; 1049 char buf[32]; 1050 unsigned int len; 1051 u32 regval; 1052 1053 regval = REG_READ_D(ah, sc->debug.regidx); 1054 len = sprintf(buf, "0x%08x\n", regval); 1055 return simple_read_from_buffer(user_buf, count, ppos, buf, len); 1056 } 1057 1058 static ssize_t write_file_regval(struct file *file, const char __user *user_buf, 1059 size_t count, loff_t *ppos) 1060 { 1061 struct ath_softc *sc = file->private_data; 1062 struct ath_hw *ah = sc->sc_ah; 1063 unsigned long regval; 1064 char buf[32]; 1065 ssize_t len; 1066 1067 len = min(count, sizeof(buf) - 1); 1068 if (copy_from_user(buf, user_buf, len)) 1069 return -EFAULT; 1070 1071 buf[len] = '\0'; 1072 if (strict_strtoul(buf, 0, ®val)) 1073 return -EINVAL; 1074 1075 REG_WRITE_D(ah, sc->debug.regidx, regval); 1076 return count; 1077 } 1078 1079 static const struct file_operations fops_regval = { 1080 .read = read_file_regval, 1081 .write = write_file_regval, 1082 .open = ath9k_debugfs_open, 1083 .owner = THIS_MODULE, 1084 .llseek = default_llseek, 1085 }; 1086 1087 #define REGDUMP_LINE_SIZE 20 1088 1089 static int open_file_regdump(struct inode *inode, struct file *file) 1090 { 1091 struct ath_softc *sc = inode->i_private; 1092 unsigned int len = 0; 1093 u8 *buf; 1094 int i; 1095 unsigned long num_regs, regdump_len, max_reg_offset; 1096 1097 max_reg_offset = AR_SREV_9300_20_OR_LATER(sc->sc_ah) ? 0x16bd4 : 0xb500; 1098 num_regs = max_reg_offset / 4 + 1; 1099 regdump_len = num_regs * REGDUMP_LINE_SIZE + 1; 1100 buf = vmalloc(regdump_len); 1101 if (!buf) 1102 return -ENOMEM; 1103 1104 ath9k_ps_wakeup(sc); 1105 for (i = 0; i < num_regs; i++) 1106 len += scnprintf(buf + len, regdump_len - len, 1107 "0x%06x 0x%08x\n", i << 2, REG_READ(sc->sc_ah, i << 2)); 1108 ath9k_ps_restore(sc); 1109 1110 file->private_data = buf; 1111 1112 return 0; 1113 } 1114 1115 static const struct file_operations fops_regdump = { 1116 .open = open_file_regdump, 1117 .read = ath9k_debugfs_read_buf, 1118 .release = ath9k_debugfs_release_buf, 1119 .owner = THIS_MODULE, 1120 .llseek = default_llseek,/* read accesses f_pos */ 1121 }; 1122 1123 int ath9k_init_debug(struct ath_hw *ah) 1124 { 1125 struct ath_common *common = ath9k_hw_common(ah); 1126 struct ath_softc *sc = (struct ath_softc *) common->priv; 1127 1128 sc->debug.debugfs_phy = debugfs_create_dir("ath9k", 1129 sc->hw->wiphy->debugfsdir); 1130 if (!sc->debug.debugfs_phy) 1131 return -ENOMEM; 1132 1133 #ifdef CONFIG_ATH_DEBUG 1134 debugfs_create_file("debug", S_IRUSR | S_IWUSR, sc->debug.debugfs_phy, 1135 sc, &fops_debug); 1136 #endif 1137 debugfs_create_file("dma", S_IRUSR, sc->debug.debugfs_phy, sc, 1138 &fops_dma); 1139 debugfs_create_file("interrupt", S_IRUSR, sc->debug.debugfs_phy, sc, 1140 &fops_interrupt); 1141 debugfs_create_file("wiphy", S_IRUSR | S_IWUSR, sc->debug.debugfs_phy, 1142 sc, &fops_wiphy); 1143 debugfs_create_file("xmit", S_IRUSR, sc->debug.debugfs_phy, sc, 1144 &fops_xmit); 1145 debugfs_create_file("stations", S_IRUSR, sc->debug.debugfs_phy, sc, 1146 &fops_stations); 1147 debugfs_create_file("misc", S_IRUSR, sc->debug.debugfs_phy, sc, 1148 &fops_misc); 1149 debugfs_create_file("recv", S_IRUSR, sc->debug.debugfs_phy, sc, 1150 &fops_recv); 1151 debugfs_create_file("rx_chainmask", S_IRUSR | S_IWUSR, 1152 sc->debug.debugfs_phy, sc, &fops_rx_chainmask); 1153 debugfs_create_file("tx_chainmask", S_IRUSR | S_IWUSR, 1154 sc->debug.debugfs_phy, sc, &fops_tx_chainmask); 1155 debugfs_create_file("regidx", S_IRUSR | S_IWUSR, sc->debug.debugfs_phy, 1156 sc, &fops_regidx); 1157 debugfs_create_file("regval", S_IRUSR | S_IWUSR, sc->debug.debugfs_phy, 1158 sc, &fops_regval); 1159 debugfs_create_bool("ignore_extcca", S_IRUSR | S_IWUSR, 1160 sc->debug.debugfs_phy, 1161 &ah->config.cwm_ignore_extcca); 1162 debugfs_create_file("regdump", S_IRUSR, sc->debug.debugfs_phy, sc, 1163 &fops_regdump); 1164 1165 debugfs_create_u32("gpio_mask", S_IRUSR | S_IWUSR, 1166 sc->debug.debugfs_phy, &sc->sc_ah->gpio_mask); 1167 1168 debugfs_create_u32("gpio_val", S_IRUSR | S_IWUSR, 1169 sc->debug.debugfs_phy, &sc->sc_ah->gpio_val); 1170 1171 sc->debug.regidx = 0; 1172 return 0; 1173 } 1174