1/* 2 * This file is part of wl1251 3 * 4 * Copyright (C) 2009 Nokia Corporation 5 * 6 * Contact: Kalle Valo <kalle.valo@nokia.com> 7 * 8 * This program is free software; you can redistribute it and/or 9 * modify it under the terms of the GNU General Public License 10 * version 2 as published by the Free Software Foundation. 11 * 12 * This program is distributed in the hope that it will be useful, but 13 * WITHOUT ANY WARRANTY; without even the implied warranty of 14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 15 * General Public License for more details. 16 * 17 * You should have received a copy of the GNU General Public License 18 * along with this program; if not, write to the Free Software 19 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 20 * 02110-1301 USA 21 * 22 */ 23 24#include "wl1251_debugfs.h" 25 26#include <linux/skbuff.h> 27#include <linux/slab.h> 28 29#include "wl1251.h" 30#include "wl1251_acx.h" 31#include "wl1251_ps.h" 32 33/* ms */ 34#define WL1251_DEBUGFS_STATS_LIFETIME 1000 35 36/* debugfs macros idea from mac80211 */ 37 38#define DEBUGFS_READONLY_FILE(name, buflen, fmt, value...) \ 39static ssize_t name## _read(struct file *file, char __user *userbuf, \ 40 size_t count, loff_t *ppos) \ 41{ \ 42 struct wl1251 *wl = file->private_data; \ 43 char buf[buflen]; \ 44 int res; \ 45 \ 46 res = scnprintf(buf, buflen, fmt "\n", ##value); \ 47 return simple_read_from_buffer(userbuf, count, ppos, buf, res); \ 48} \ 49 \ 50static const struct file_operations name## _ops = { \ 51 .read = name## _read, \ 52 .open = wl1251_open_file_generic, \ 53}; 54 55#define DEBUGFS_ADD(name, parent) \ 56 wl->debugfs.name = debugfs_create_file(#name, 0400, parent, \ 57 wl, &name## _ops); \ 58 if (IS_ERR(wl->debugfs.name)) { \ 59 ret = PTR_ERR(wl->debugfs.name); \ 60 wl->debugfs.name = NULL; \ 61 goto out; \ 62 } 63 64#define DEBUGFS_DEL(name) \ 65 do { \ 66 debugfs_remove(wl->debugfs.name); \ 67 wl->debugfs.name = NULL; \ 68 } while (0) 69 70#define DEBUGFS_FWSTATS_FILE(sub, name, buflen, fmt) \ 71static ssize_t sub## _ ##name## _read(struct file *file, \ 72 char __user *userbuf, \ 73 size_t count, loff_t *ppos) \ 74{ \ 75 struct wl1251 *wl = file->private_data; \ 76 char buf[buflen]; \ 77 int res; \ 78 \ 79 wl1251_debugfs_update_stats(wl); \ 80 \ 81 res = scnprintf(buf, buflen, fmt "\n", \ 82 wl->stats.fw_stats->sub.name); \ 83 return simple_read_from_buffer(userbuf, count, ppos, buf, res); \ 84} \ 85 \ 86static const struct file_operations sub## _ ##name## _ops = { \ 87 .read = sub## _ ##name## _read, \ 88 .open = wl1251_open_file_generic, \ 89}; 90 91#define DEBUGFS_FWSTATS_ADD(sub, name) \ 92 DEBUGFS_ADD(sub## _ ##name, wl->debugfs.fw_statistics) 93 94#define DEBUGFS_FWSTATS_DEL(sub, name) \ 95 DEBUGFS_DEL(sub## _ ##name) 96 97static void wl1251_debugfs_update_stats(struct wl1251 *wl) 98{ 99 int ret; 100 101 mutex_lock(&wl->mutex); 102 103 ret = wl1251_ps_elp_wakeup(wl); 104 if (ret < 0) 105 goto out; 106 107 if (wl->state == WL1251_STATE_ON && 108 time_after(jiffies, wl->stats.fw_stats_update + 109 msecs_to_jiffies(WL1251_DEBUGFS_STATS_LIFETIME))) { 110 wl1251_acx_statistics(wl, wl->stats.fw_stats); 111 wl->stats.fw_stats_update = jiffies; 112 } 113 114 wl1251_ps_elp_sleep(wl); 115 116out: 117 mutex_unlock(&wl->mutex); 118} 119 120static int wl1251_open_file_generic(struct inode *inode, struct file *file) 121{ 122 file->private_data = inode->i_private; 123 return 0; 124} 125 126DEBUGFS_FWSTATS_FILE(tx, internal_desc_overflow, 20, "%u"); 127 128DEBUGFS_FWSTATS_FILE(rx, out_of_mem, 20, "%u"); 129DEBUGFS_FWSTATS_FILE(rx, hdr_overflow, 20, "%u"); 130DEBUGFS_FWSTATS_FILE(rx, hw_stuck, 20, "%u"); 131DEBUGFS_FWSTATS_FILE(rx, dropped, 20, "%u"); 132DEBUGFS_FWSTATS_FILE(rx, fcs_err, 20, "%u"); 133DEBUGFS_FWSTATS_FILE(rx, xfr_hint_trig, 20, "%u"); 134DEBUGFS_FWSTATS_FILE(rx, path_reset, 20, "%u"); 135DEBUGFS_FWSTATS_FILE(rx, reset_counter, 20, "%u"); 136 137DEBUGFS_FWSTATS_FILE(dma, rx_requested, 20, "%u"); 138DEBUGFS_FWSTATS_FILE(dma, rx_errors, 20, "%u"); 139DEBUGFS_FWSTATS_FILE(dma, tx_requested, 20, "%u"); 140DEBUGFS_FWSTATS_FILE(dma, tx_errors, 20, "%u"); 141 142DEBUGFS_FWSTATS_FILE(isr, cmd_cmplt, 20, "%u"); 143DEBUGFS_FWSTATS_FILE(isr, fiqs, 20, "%u"); 144DEBUGFS_FWSTATS_FILE(isr, rx_headers, 20, "%u"); 145DEBUGFS_FWSTATS_FILE(isr, rx_mem_overflow, 20, "%u"); 146DEBUGFS_FWSTATS_FILE(isr, rx_rdys, 20, "%u"); 147DEBUGFS_FWSTATS_FILE(isr, irqs, 20, "%u"); 148DEBUGFS_FWSTATS_FILE(isr, tx_procs, 20, "%u"); 149DEBUGFS_FWSTATS_FILE(isr, decrypt_done, 20, "%u"); 150DEBUGFS_FWSTATS_FILE(isr, dma0_done, 20, "%u"); 151DEBUGFS_FWSTATS_FILE(isr, dma1_done, 20, "%u"); 152DEBUGFS_FWSTATS_FILE(isr, tx_exch_complete, 20, "%u"); 153DEBUGFS_FWSTATS_FILE(isr, commands, 20, "%u"); 154DEBUGFS_FWSTATS_FILE(isr, rx_procs, 20, "%u"); 155DEBUGFS_FWSTATS_FILE(isr, hw_pm_mode_changes, 20, "%u"); 156DEBUGFS_FWSTATS_FILE(isr, host_acknowledges, 20, "%u"); 157DEBUGFS_FWSTATS_FILE(isr, pci_pm, 20, "%u"); 158DEBUGFS_FWSTATS_FILE(isr, wakeups, 20, "%u"); 159DEBUGFS_FWSTATS_FILE(isr, low_rssi, 20, "%u"); 160 161DEBUGFS_FWSTATS_FILE(wep, addr_key_count, 20, "%u"); 162DEBUGFS_FWSTATS_FILE(wep, default_key_count, 20, "%u"); 163/* skipping wep.reserved */ 164DEBUGFS_FWSTATS_FILE(wep, key_not_found, 20, "%u"); 165DEBUGFS_FWSTATS_FILE(wep, decrypt_fail, 20, "%u"); 166DEBUGFS_FWSTATS_FILE(wep, packets, 20, "%u"); 167DEBUGFS_FWSTATS_FILE(wep, interrupt, 20, "%u"); 168 169DEBUGFS_FWSTATS_FILE(pwr, ps_enter, 20, "%u"); 170DEBUGFS_FWSTATS_FILE(pwr, elp_enter, 20, "%u"); 171DEBUGFS_FWSTATS_FILE(pwr, missing_bcns, 20, "%u"); 172DEBUGFS_FWSTATS_FILE(pwr, wake_on_host, 20, "%u"); 173DEBUGFS_FWSTATS_FILE(pwr, wake_on_timer_exp, 20, "%u"); 174DEBUGFS_FWSTATS_FILE(pwr, tx_with_ps, 20, "%u"); 175DEBUGFS_FWSTATS_FILE(pwr, tx_without_ps, 20, "%u"); 176DEBUGFS_FWSTATS_FILE(pwr, rcvd_beacons, 20, "%u"); 177DEBUGFS_FWSTATS_FILE(pwr, power_save_off, 20, "%u"); 178DEBUGFS_FWSTATS_FILE(pwr, enable_ps, 20, "%u"); 179DEBUGFS_FWSTATS_FILE(pwr, disable_ps, 20, "%u"); 180DEBUGFS_FWSTATS_FILE(pwr, fix_tsf_ps, 20, "%u"); 181/* skipping cont_miss_bcns_spread for now */ 182DEBUGFS_FWSTATS_FILE(pwr, rcvd_awake_beacons, 20, "%u"); 183 184DEBUGFS_FWSTATS_FILE(mic, rx_pkts, 20, "%u"); 185DEBUGFS_FWSTATS_FILE(mic, calc_failure, 20, "%u"); 186 187DEBUGFS_FWSTATS_FILE(aes, encrypt_fail, 20, "%u"); 188DEBUGFS_FWSTATS_FILE(aes, decrypt_fail, 20, "%u"); 189DEBUGFS_FWSTATS_FILE(aes, encrypt_packets, 20, "%u"); 190DEBUGFS_FWSTATS_FILE(aes, decrypt_packets, 20, "%u"); 191DEBUGFS_FWSTATS_FILE(aes, encrypt_interrupt, 20, "%u"); 192DEBUGFS_FWSTATS_FILE(aes, decrypt_interrupt, 20, "%u"); 193 194DEBUGFS_FWSTATS_FILE(event, heart_beat, 20, "%u"); 195DEBUGFS_FWSTATS_FILE(event, calibration, 20, "%u"); 196DEBUGFS_FWSTATS_FILE(event, rx_mismatch, 20, "%u"); 197DEBUGFS_FWSTATS_FILE(event, rx_mem_empty, 20, "%u"); 198DEBUGFS_FWSTATS_FILE(event, rx_pool, 20, "%u"); 199DEBUGFS_FWSTATS_FILE(event, oom_late, 20, "%u"); 200DEBUGFS_FWSTATS_FILE(event, phy_transmit_error, 20, "%u"); 201DEBUGFS_FWSTATS_FILE(event, tx_stuck, 20, "%u"); 202 203DEBUGFS_FWSTATS_FILE(ps, pspoll_timeouts, 20, "%u"); 204DEBUGFS_FWSTATS_FILE(ps, upsd_timeouts, 20, "%u"); 205DEBUGFS_FWSTATS_FILE(ps, upsd_max_sptime, 20, "%u"); 206DEBUGFS_FWSTATS_FILE(ps, upsd_max_apturn, 20, "%u"); 207DEBUGFS_FWSTATS_FILE(ps, pspoll_max_apturn, 20, "%u"); 208DEBUGFS_FWSTATS_FILE(ps, pspoll_utilization, 20, "%u"); 209DEBUGFS_FWSTATS_FILE(ps, upsd_utilization, 20, "%u"); 210 211DEBUGFS_FWSTATS_FILE(rxpipe, rx_prep_beacon_drop, 20, "%u"); 212DEBUGFS_FWSTATS_FILE(rxpipe, descr_host_int_trig_rx_data, 20, "%u"); 213DEBUGFS_FWSTATS_FILE(rxpipe, beacon_buffer_thres_host_int_trig_rx_data, 214 20, "%u"); 215DEBUGFS_FWSTATS_FILE(rxpipe, missed_beacon_host_int_trig_rx_data, 20, "%u"); 216DEBUGFS_FWSTATS_FILE(rxpipe, tx_xfr_host_int_trig_rx_data, 20, "%u"); 217 218DEBUGFS_READONLY_FILE(retry_count, 20, "%u", wl->stats.retry_count); 219DEBUGFS_READONLY_FILE(excessive_retries, 20, "%u", 220 wl->stats.excessive_retries); 221 222static ssize_t tx_queue_len_read(struct file *file, char __user *userbuf, 223 size_t count, loff_t *ppos) 224{ 225 struct wl1251 *wl = file->private_data; 226 u32 queue_len; 227 char buf[20]; 228 int res; 229 230 queue_len = skb_queue_len(&wl->tx_queue); 231 232 res = scnprintf(buf, sizeof(buf), "%u\n", queue_len); 233 return simple_read_from_buffer(userbuf, count, ppos, buf, res); 234} 235 236static const struct file_operations tx_queue_len_ops = { 237 .read = tx_queue_len_read, 238 .open = wl1251_open_file_generic, 239}; 240 241static ssize_t tx_queue_status_read(struct file *file, char __user *userbuf, 242 size_t count, loff_t *ppos) 243{ 244 struct wl1251 *wl = file->private_data; 245 char buf[3], status; 246 int len; 247 248 if (wl->tx_queue_stopped) 249 status = 's'; 250 else 251 status = 'r'; 252 253 len = scnprintf(buf, sizeof(buf), "%c\n", status); 254 return simple_read_from_buffer(userbuf, count, ppos, buf, len); 255} 256 257static const struct file_operations tx_queue_status_ops = { 258 .read = tx_queue_status_read, 259 .open = wl1251_open_file_generic, 260}; 261 262static void wl1251_debugfs_delete_files(struct wl1251 *wl) 263{ 264 DEBUGFS_FWSTATS_DEL(tx, internal_desc_overflow); 265 266 DEBUGFS_FWSTATS_DEL(rx, out_of_mem); 267 DEBUGFS_FWSTATS_DEL(rx, hdr_overflow); 268 DEBUGFS_FWSTATS_DEL(rx, hw_stuck); 269 DEBUGFS_FWSTATS_DEL(rx, dropped); 270 DEBUGFS_FWSTATS_DEL(rx, fcs_err); 271 DEBUGFS_FWSTATS_DEL(rx, xfr_hint_trig); 272 DEBUGFS_FWSTATS_DEL(rx, path_reset); 273 DEBUGFS_FWSTATS_DEL(rx, reset_counter); 274 275 DEBUGFS_FWSTATS_DEL(dma, rx_requested); 276 DEBUGFS_FWSTATS_DEL(dma, rx_errors); 277 DEBUGFS_FWSTATS_DEL(dma, tx_requested); 278 DEBUGFS_FWSTATS_DEL(dma, tx_errors); 279 280 DEBUGFS_FWSTATS_DEL(isr, cmd_cmplt); 281 DEBUGFS_FWSTATS_DEL(isr, fiqs); 282 DEBUGFS_FWSTATS_DEL(isr, rx_headers); 283 DEBUGFS_FWSTATS_DEL(isr, rx_mem_overflow); 284 DEBUGFS_FWSTATS_DEL(isr, rx_rdys); 285 DEBUGFS_FWSTATS_DEL(isr, irqs); 286 DEBUGFS_FWSTATS_DEL(isr, tx_procs); 287 DEBUGFS_FWSTATS_DEL(isr, decrypt_done); 288 DEBUGFS_FWSTATS_DEL(isr, dma0_done); 289 DEBUGFS_FWSTATS_DEL(isr, dma1_done); 290 DEBUGFS_FWSTATS_DEL(isr, tx_exch_complete); 291 DEBUGFS_FWSTATS_DEL(isr, commands); 292 DEBUGFS_FWSTATS_DEL(isr, rx_procs); 293 DEBUGFS_FWSTATS_DEL(isr, hw_pm_mode_changes); 294 DEBUGFS_FWSTATS_DEL(isr, host_acknowledges); 295 DEBUGFS_FWSTATS_DEL(isr, pci_pm); 296 DEBUGFS_FWSTATS_DEL(isr, wakeups); 297 DEBUGFS_FWSTATS_DEL(isr, low_rssi); 298 299 DEBUGFS_FWSTATS_DEL(wep, addr_key_count); 300 DEBUGFS_FWSTATS_DEL(wep, default_key_count); 301 /* skipping wep.reserved */ 302 DEBUGFS_FWSTATS_DEL(wep, key_not_found); 303 DEBUGFS_FWSTATS_DEL(wep, decrypt_fail); 304 DEBUGFS_FWSTATS_DEL(wep, packets); 305 DEBUGFS_FWSTATS_DEL(wep, interrupt); 306 307 DEBUGFS_FWSTATS_DEL(pwr, ps_enter); 308 DEBUGFS_FWSTATS_DEL(pwr, elp_enter); 309 DEBUGFS_FWSTATS_DEL(pwr, missing_bcns); 310 DEBUGFS_FWSTATS_DEL(pwr, wake_on_host); 311 DEBUGFS_FWSTATS_DEL(pwr, wake_on_timer_exp); 312 DEBUGFS_FWSTATS_DEL(pwr, tx_with_ps); 313 DEBUGFS_FWSTATS_DEL(pwr, tx_without_ps); 314 DEBUGFS_FWSTATS_DEL(pwr, rcvd_beacons); 315 DEBUGFS_FWSTATS_DEL(pwr, power_save_off); 316 DEBUGFS_FWSTATS_DEL(pwr, enable_ps); 317 DEBUGFS_FWSTATS_DEL(pwr, disable_ps); 318 DEBUGFS_FWSTATS_DEL(pwr, fix_tsf_ps); 319 /* skipping cont_miss_bcns_spread for now */ 320 DEBUGFS_FWSTATS_DEL(pwr, rcvd_awake_beacons); 321 322 DEBUGFS_FWSTATS_DEL(mic, rx_pkts); 323 DEBUGFS_FWSTATS_DEL(mic, calc_failure); 324 325 DEBUGFS_FWSTATS_DEL(aes, encrypt_fail); 326 DEBUGFS_FWSTATS_DEL(aes, decrypt_fail); 327 DEBUGFS_FWSTATS_DEL(aes, encrypt_packets); 328 DEBUGFS_FWSTATS_DEL(aes, decrypt_packets); 329 DEBUGFS_FWSTATS_DEL(aes, encrypt_interrupt); 330 DEBUGFS_FWSTATS_DEL(aes, decrypt_interrupt); 331 332 DEBUGFS_FWSTATS_DEL(event, heart_beat); 333 DEBUGFS_FWSTATS_DEL(event, calibration); 334 DEBUGFS_FWSTATS_DEL(event, rx_mismatch); 335 DEBUGFS_FWSTATS_DEL(event, rx_mem_empty); 336 DEBUGFS_FWSTATS_DEL(event, rx_pool); 337 DEBUGFS_FWSTATS_DEL(event, oom_late); 338 DEBUGFS_FWSTATS_DEL(event, phy_transmit_error); 339 DEBUGFS_FWSTATS_DEL(event, tx_stuck); 340 341 DEBUGFS_FWSTATS_DEL(ps, pspoll_timeouts); 342 DEBUGFS_FWSTATS_DEL(ps, upsd_timeouts); 343 DEBUGFS_FWSTATS_DEL(ps, upsd_max_sptime); 344 DEBUGFS_FWSTATS_DEL(ps, upsd_max_apturn); 345 DEBUGFS_FWSTATS_DEL(ps, pspoll_max_apturn); 346 DEBUGFS_FWSTATS_DEL(ps, pspoll_utilization); 347 DEBUGFS_FWSTATS_DEL(ps, upsd_utilization); 348 349 DEBUGFS_FWSTATS_DEL(rxpipe, rx_prep_beacon_drop); 350 DEBUGFS_FWSTATS_DEL(rxpipe, descr_host_int_trig_rx_data); 351 DEBUGFS_FWSTATS_DEL(rxpipe, beacon_buffer_thres_host_int_trig_rx_data); 352 DEBUGFS_FWSTATS_DEL(rxpipe, missed_beacon_host_int_trig_rx_data); 353 DEBUGFS_FWSTATS_DEL(rxpipe, tx_xfr_host_int_trig_rx_data); 354 355 DEBUGFS_DEL(tx_queue_len); 356 DEBUGFS_DEL(tx_queue_status); 357 DEBUGFS_DEL(retry_count); 358 DEBUGFS_DEL(excessive_retries); 359} 360 361static int wl1251_debugfs_add_files(struct wl1251 *wl) 362{ 363 int ret = 0; 364 365 DEBUGFS_FWSTATS_ADD(tx, internal_desc_overflow); 366 367 DEBUGFS_FWSTATS_ADD(rx, out_of_mem); 368 DEBUGFS_FWSTATS_ADD(rx, hdr_overflow); 369 DEBUGFS_FWSTATS_ADD(rx, hw_stuck); 370 DEBUGFS_FWSTATS_ADD(rx, dropped); 371 DEBUGFS_FWSTATS_ADD(rx, fcs_err); 372 DEBUGFS_FWSTATS_ADD(rx, xfr_hint_trig); 373 DEBUGFS_FWSTATS_ADD(rx, path_reset); 374 DEBUGFS_FWSTATS_ADD(rx, reset_counter); 375 376 DEBUGFS_FWSTATS_ADD(dma, rx_requested); 377 DEBUGFS_FWSTATS_ADD(dma, rx_errors); 378 DEBUGFS_FWSTATS_ADD(dma, tx_requested); 379 DEBUGFS_FWSTATS_ADD(dma, tx_errors); 380 381 DEBUGFS_FWSTATS_ADD(isr, cmd_cmplt); 382 DEBUGFS_FWSTATS_ADD(isr, fiqs); 383 DEBUGFS_FWSTATS_ADD(isr, rx_headers); 384 DEBUGFS_FWSTATS_ADD(isr, rx_mem_overflow); 385 DEBUGFS_FWSTATS_ADD(isr, rx_rdys); 386 DEBUGFS_FWSTATS_ADD(isr, irqs); 387 DEBUGFS_FWSTATS_ADD(isr, tx_procs); 388 DEBUGFS_FWSTATS_ADD(isr, decrypt_done); 389 DEBUGFS_FWSTATS_ADD(isr, dma0_done); 390 DEBUGFS_FWSTATS_ADD(isr, dma1_done); 391 DEBUGFS_FWSTATS_ADD(isr, tx_exch_complete); 392 DEBUGFS_FWSTATS_ADD(isr, commands); 393 DEBUGFS_FWSTATS_ADD(isr, rx_procs); 394 DEBUGFS_FWSTATS_ADD(isr, hw_pm_mode_changes); 395 DEBUGFS_FWSTATS_ADD(isr, host_acknowledges); 396 DEBUGFS_FWSTATS_ADD(isr, pci_pm); 397 DEBUGFS_FWSTATS_ADD(isr, wakeups); 398 DEBUGFS_FWSTATS_ADD(isr, low_rssi); 399 400 DEBUGFS_FWSTATS_ADD(wep, addr_key_count); 401 DEBUGFS_FWSTATS_ADD(wep, default_key_count); 402 /* skipping wep.reserved */ 403 DEBUGFS_FWSTATS_ADD(wep, key_not_found); 404 DEBUGFS_FWSTATS_ADD(wep, decrypt_fail); 405 DEBUGFS_FWSTATS_ADD(wep, packets); 406 DEBUGFS_FWSTATS_ADD(wep, interrupt); 407 408 DEBUGFS_FWSTATS_ADD(pwr, ps_enter); 409 DEBUGFS_FWSTATS_ADD(pwr, elp_enter); 410 DEBUGFS_FWSTATS_ADD(pwr, missing_bcns); 411 DEBUGFS_FWSTATS_ADD(pwr, wake_on_host); 412 DEBUGFS_FWSTATS_ADD(pwr, wake_on_timer_exp); 413 DEBUGFS_FWSTATS_ADD(pwr, tx_with_ps); 414 DEBUGFS_FWSTATS_ADD(pwr, tx_without_ps); 415 DEBUGFS_FWSTATS_ADD(pwr, rcvd_beacons); 416 DEBUGFS_FWSTATS_ADD(pwr, power_save_off); 417 DEBUGFS_FWSTATS_ADD(pwr, enable_ps); 418 DEBUGFS_FWSTATS_ADD(pwr, disable_ps); 419 DEBUGFS_FWSTATS_ADD(pwr, fix_tsf_ps); 420 /* skipping cont_miss_bcns_spread for now */ 421 DEBUGFS_FWSTATS_ADD(pwr, rcvd_awake_beacons); 422 423 DEBUGFS_FWSTATS_ADD(mic, rx_pkts); 424 DEBUGFS_FWSTATS_ADD(mic, calc_failure); 425 426 DEBUGFS_FWSTATS_ADD(aes, encrypt_fail); 427 DEBUGFS_FWSTATS_ADD(aes, decrypt_fail); 428 DEBUGFS_FWSTATS_ADD(aes, encrypt_packets); 429 DEBUGFS_FWSTATS_ADD(aes, decrypt_packets); 430 DEBUGFS_FWSTATS_ADD(aes, encrypt_interrupt); 431 DEBUGFS_FWSTATS_ADD(aes, decrypt_interrupt); 432 433 DEBUGFS_FWSTATS_ADD(event, heart_beat); 434 DEBUGFS_FWSTATS_ADD(event, calibration); 435 DEBUGFS_FWSTATS_ADD(event, rx_mismatch); 436 DEBUGFS_FWSTATS_ADD(event, rx_mem_empty); 437 DEBUGFS_FWSTATS_ADD(event, rx_pool); 438 DEBUGFS_FWSTATS_ADD(event, oom_late); 439 DEBUGFS_FWSTATS_ADD(event, phy_transmit_error); 440 DEBUGFS_FWSTATS_ADD(event, tx_stuck); 441 442 DEBUGFS_FWSTATS_ADD(ps, pspoll_timeouts); 443 DEBUGFS_FWSTATS_ADD(ps, upsd_timeouts); 444 DEBUGFS_FWSTATS_ADD(ps, upsd_max_sptime); 445 DEBUGFS_FWSTATS_ADD(ps, upsd_max_apturn); 446 DEBUGFS_FWSTATS_ADD(ps, pspoll_max_apturn); 447 DEBUGFS_FWSTATS_ADD(ps, pspoll_utilization); 448 DEBUGFS_FWSTATS_ADD(ps, upsd_utilization); 449 450 DEBUGFS_FWSTATS_ADD(rxpipe, rx_prep_beacon_drop); 451 DEBUGFS_FWSTATS_ADD(rxpipe, descr_host_int_trig_rx_data); 452 DEBUGFS_FWSTATS_ADD(rxpipe, beacon_buffer_thres_host_int_trig_rx_data); 453 DEBUGFS_FWSTATS_ADD(rxpipe, missed_beacon_host_int_trig_rx_data); 454 DEBUGFS_FWSTATS_ADD(rxpipe, tx_xfr_host_int_trig_rx_data); 455 456 DEBUGFS_ADD(tx_queue_len, wl->debugfs.rootdir); 457 DEBUGFS_ADD(tx_queue_status, wl->debugfs.rootdir); 458 DEBUGFS_ADD(retry_count, wl->debugfs.rootdir); 459 DEBUGFS_ADD(excessive_retries, wl->debugfs.rootdir); 460 461out: 462 if (ret < 0) 463 wl1251_debugfs_delete_files(wl); 464 465 return ret; 466} 467 468void wl1251_debugfs_reset(struct wl1251 *wl) 469{ 470 if (wl->stats.fw_stats != NULL) 471 memset(wl->stats.fw_stats, 0, sizeof(*wl->stats.fw_stats)); 472 wl->stats.retry_count = 0; 473 wl->stats.excessive_retries = 0; 474} 475 476int wl1251_debugfs_init(struct wl1251 *wl) 477{ 478 int ret; 479 480 wl->debugfs.rootdir = debugfs_create_dir(KBUILD_MODNAME, NULL); 481 482 if (IS_ERR(wl->debugfs.rootdir)) { 483 ret = PTR_ERR(wl->debugfs.rootdir); 484 wl->debugfs.rootdir = NULL; 485 goto err; 486 } 487 488 wl->debugfs.fw_statistics = debugfs_create_dir("fw-statistics", 489 wl->debugfs.rootdir); 490 491 if (IS_ERR(wl->debugfs.fw_statistics)) { 492 ret = PTR_ERR(wl->debugfs.fw_statistics); 493 wl->debugfs.fw_statistics = NULL; 494 goto err_root; 495 } 496 497 wl->stats.fw_stats = kzalloc(sizeof(*wl->stats.fw_stats), 498 GFP_KERNEL); 499 500 if (!wl->stats.fw_stats) { 501 ret = -ENOMEM; 502 goto err_fw; 503 } 504 505 wl->stats.fw_stats_update = jiffies; 506 507 ret = wl1251_debugfs_add_files(wl); 508 509 if (ret < 0) 510 goto err_file; 511 512 return 0; 513 514err_file: 515 kfree(wl->stats.fw_stats); 516 wl->stats.fw_stats = NULL; 517 518err_fw: 519 debugfs_remove(wl->debugfs.fw_statistics); 520 wl->debugfs.fw_statistics = NULL; 521 522err_root: 523 debugfs_remove(wl->debugfs.rootdir); 524 wl->debugfs.rootdir = NULL; 525 526err: 527 return ret; 528} 529 530void wl1251_debugfs_exit(struct wl1251 *wl) 531{ 532 wl1251_debugfs_delete_files(wl); 533 534 kfree(wl->stats.fw_stats); 535 wl->stats.fw_stats = NULL; 536 537 debugfs_remove(wl->debugfs.fw_statistics); 538 wl->debugfs.fw_statistics = NULL; 539 540 debugfs_remove(wl->debugfs.rootdir); 541 wl->debugfs.rootdir = NULL; 542 543} 544