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* This file is part of wl1251
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* Copyright (C) 2009 Nokia Corporation
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* version 2 as published by the Free Software Foundation.
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* This program is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* General Public License for more details.
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
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#include <linux/skbuff.h>
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#include <linux/slab.h>
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#define WL1251_DEBUGFS_STATS_LIFETIME 1000
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/* debugfs macros idea from mac80211 */
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#define DEBUGFS_READONLY_FILE(name, buflen, fmt, value...) \
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static ssize_t name## _read(struct file *file, char __user *userbuf, \
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size_t count, loff_t *ppos) \
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struct wl1251 *wl = file->private_data; \
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res = scnprintf(buf, buflen, fmt "\n", ##value); \
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return simple_read_from_buffer(userbuf, count, ppos, buf, res); \
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static const struct file_operations name## _ops = { \
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.read = name## _read, \
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.open = wl1251_open_file_generic, \
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.llseek = generic_file_llseek, \
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#define DEBUGFS_ADD(name, parent) \
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wl->debugfs.name = debugfs_create_file(#name, 0400, parent, \
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if (IS_ERR(wl->debugfs.name)) { \
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ret = PTR_ERR(wl->debugfs.name); \
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wl->debugfs.name = NULL; \
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#define DEBUGFS_DEL(name) \
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debugfs_remove(wl->debugfs.name); \
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wl->debugfs.name = NULL; \
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#define DEBUGFS_FWSTATS_FILE(sub, name, buflen, fmt) \
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static ssize_t sub## _ ##name## _read(struct file *file, \
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char __user *userbuf, \
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size_t count, loff_t *ppos) \
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struct wl1251 *wl = file->private_data; \
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wl1251_debugfs_update_stats(wl); \
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res = scnprintf(buf, buflen, fmt "\n", \
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wl->stats.fw_stats->sub.name); \
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return simple_read_from_buffer(userbuf, count, ppos, buf, res); \
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static const struct file_operations sub## _ ##name## _ops = { \
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.read = sub## _ ##name## _read, \
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.open = wl1251_open_file_generic, \
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.llseek = generic_file_llseek, \
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#define DEBUGFS_FWSTATS_ADD(sub, name) \
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DEBUGFS_ADD(sub## _ ##name, wl->debugfs.fw_statistics)
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#define DEBUGFS_FWSTATS_DEL(sub, name) \
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DEBUGFS_DEL(sub## _ ##name)
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static void wl1251_debugfs_update_stats(struct wl1251 *wl)
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mutex_lock(&wl->mutex);
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ret = wl1251_ps_elp_wakeup(wl);
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if (wl->state == WL1251_STATE_ON &&
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time_after(jiffies, wl->stats.fw_stats_update +
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msecs_to_jiffies(WL1251_DEBUGFS_STATS_LIFETIME))) {
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wl1251_acx_statistics(wl, wl->stats.fw_stats);
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wl->stats.fw_stats_update = jiffies;
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wl1251_ps_elp_sleep(wl);
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mutex_unlock(&wl->mutex);
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static int wl1251_open_file_generic(struct inode *inode, struct file *file)
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file->private_data = inode->i_private;
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DEBUGFS_FWSTATS_FILE(tx, internal_desc_overflow, 20, "%u");
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DEBUGFS_FWSTATS_FILE(rx, out_of_mem, 20, "%u");
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DEBUGFS_FWSTATS_FILE(rx, hdr_overflow, 20, "%u");
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DEBUGFS_FWSTATS_FILE(rx, hw_stuck, 20, "%u");
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DEBUGFS_FWSTATS_FILE(rx, dropped, 20, "%u");
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DEBUGFS_FWSTATS_FILE(rx, fcs_err, 20, "%u");
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DEBUGFS_FWSTATS_FILE(rx, xfr_hint_trig, 20, "%u");
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DEBUGFS_FWSTATS_FILE(rx, path_reset, 20, "%u");
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DEBUGFS_FWSTATS_FILE(rx, reset_counter, 20, "%u");
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DEBUGFS_FWSTATS_FILE(dma, rx_requested, 20, "%u");
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DEBUGFS_FWSTATS_FILE(dma, rx_errors, 20, "%u");
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DEBUGFS_FWSTATS_FILE(dma, tx_requested, 20, "%u");
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DEBUGFS_FWSTATS_FILE(dma, tx_errors, 20, "%u");
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DEBUGFS_FWSTATS_FILE(isr, cmd_cmplt, 20, "%u");
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DEBUGFS_FWSTATS_FILE(isr, fiqs, 20, "%u");
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DEBUGFS_FWSTATS_FILE(isr, rx_headers, 20, "%u");
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DEBUGFS_FWSTATS_FILE(isr, rx_mem_overflow, 20, "%u");
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DEBUGFS_FWSTATS_FILE(isr, rx_rdys, 20, "%u");
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DEBUGFS_FWSTATS_FILE(isr, irqs, 20, "%u");
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DEBUGFS_FWSTATS_FILE(isr, tx_procs, 20, "%u");
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DEBUGFS_FWSTATS_FILE(isr, decrypt_done, 20, "%u");
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DEBUGFS_FWSTATS_FILE(isr, dma0_done, 20, "%u");
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DEBUGFS_FWSTATS_FILE(isr, dma1_done, 20, "%u");
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DEBUGFS_FWSTATS_FILE(isr, tx_exch_complete, 20, "%u");
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DEBUGFS_FWSTATS_FILE(isr, commands, 20, "%u");
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DEBUGFS_FWSTATS_FILE(isr, rx_procs, 20, "%u");
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DEBUGFS_FWSTATS_FILE(isr, hw_pm_mode_changes, 20, "%u");
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DEBUGFS_FWSTATS_FILE(isr, host_acknowledges, 20, "%u");
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DEBUGFS_FWSTATS_FILE(isr, pci_pm, 20, "%u");
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DEBUGFS_FWSTATS_FILE(isr, wakeups, 20, "%u");
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DEBUGFS_FWSTATS_FILE(isr, low_rssi, 20, "%u");
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DEBUGFS_FWSTATS_FILE(wep, addr_key_count, 20, "%u");
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DEBUGFS_FWSTATS_FILE(wep, default_key_count, 20, "%u");
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/* skipping wep.reserved */
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DEBUGFS_FWSTATS_FILE(wep, key_not_found, 20, "%u");
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DEBUGFS_FWSTATS_FILE(wep, decrypt_fail, 20, "%u");
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DEBUGFS_FWSTATS_FILE(wep, packets, 20, "%u");
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DEBUGFS_FWSTATS_FILE(wep, interrupt, 20, "%u");
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DEBUGFS_FWSTATS_FILE(pwr, ps_enter, 20, "%u");
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DEBUGFS_FWSTATS_FILE(pwr, elp_enter, 20, "%u");
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DEBUGFS_FWSTATS_FILE(pwr, missing_bcns, 20, "%u");
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DEBUGFS_FWSTATS_FILE(pwr, wake_on_host, 20, "%u");
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DEBUGFS_FWSTATS_FILE(pwr, wake_on_timer_exp, 20, "%u");
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DEBUGFS_FWSTATS_FILE(pwr, tx_with_ps, 20, "%u");
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DEBUGFS_FWSTATS_FILE(pwr, tx_without_ps, 20, "%u");
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DEBUGFS_FWSTATS_FILE(pwr, rcvd_beacons, 20, "%u");
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DEBUGFS_FWSTATS_FILE(pwr, power_save_off, 20, "%u");
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DEBUGFS_FWSTATS_FILE(pwr, enable_ps, 20, "%u");
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DEBUGFS_FWSTATS_FILE(pwr, disable_ps, 20, "%u");
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DEBUGFS_FWSTATS_FILE(pwr, fix_tsf_ps, 20, "%u");
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/* skipping cont_miss_bcns_spread for now */
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DEBUGFS_FWSTATS_FILE(pwr, rcvd_awake_beacons, 20, "%u");
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DEBUGFS_FWSTATS_FILE(mic, rx_pkts, 20, "%u");
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DEBUGFS_FWSTATS_FILE(mic, calc_failure, 20, "%u");
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DEBUGFS_FWSTATS_FILE(aes, encrypt_fail, 20, "%u");
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DEBUGFS_FWSTATS_FILE(aes, decrypt_fail, 20, "%u");
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DEBUGFS_FWSTATS_FILE(aes, encrypt_packets, 20, "%u");
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DEBUGFS_FWSTATS_FILE(aes, decrypt_packets, 20, "%u");
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DEBUGFS_FWSTATS_FILE(aes, encrypt_interrupt, 20, "%u");
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DEBUGFS_FWSTATS_FILE(aes, decrypt_interrupt, 20, "%u");
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DEBUGFS_FWSTATS_FILE(event, heart_beat, 20, "%u");
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DEBUGFS_FWSTATS_FILE(event, calibration, 20, "%u");
196
DEBUGFS_FWSTATS_FILE(event, rx_mismatch, 20, "%u");
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DEBUGFS_FWSTATS_FILE(event, rx_mem_empty, 20, "%u");
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DEBUGFS_FWSTATS_FILE(event, rx_pool, 20, "%u");
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DEBUGFS_FWSTATS_FILE(event, oom_late, 20, "%u");
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DEBUGFS_FWSTATS_FILE(event, phy_transmit_error, 20, "%u");
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DEBUGFS_FWSTATS_FILE(event, tx_stuck, 20, "%u");
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DEBUGFS_FWSTATS_FILE(ps, pspoll_timeouts, 20, "%u");
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DEBUGFS_FWSTATS_FILE(ps, upsd_timeouts, 20, "%u");
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DEBUGFS_FWSTATS_FILE(ps, upsd_max_sptime, 20, "%u");
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DEBUGFS_FWSTATS_FILE(ps, upsd_max_apturn, 20, "%u");
207
DEBUGFS_FWSTATS_FILE(ps, pspoll_max_apturn, 20, "%u");
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DEBUGFS_FWSTATS_FILE(ps, pspoll_utilization, 20, "%u");
209
DEBUGFS_FWSTATS_FILE(ps, upsd_utilization, 20, "%u");
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DEBUGFS_FWSTATS_FILE(rxpipe, rx_prep_beacon_drop, 20, "%u");
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DEBUGFS_FWSTATS_FILE(rxpipe, descr_host_int_trig_rx_data, 20, "%u");
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DEBUGFS_FWSTATS_FILE(rxpipe, beacon_buffer_thres_host_int_trig_rx_data,
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DEBUGFS_FWSTATS_FILE(rxpipe, missed_beacon_host_int_trig_rx_data, 20, "%u");
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DEBUGFS_FWSTATS_FILE(rxpipe, tx_xfr_host_int_trig_rx_data, 20, "%u");
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DEBUGFS_READONLY_FILE(retry_count, 20, "%u", wl->stats.retry_count);
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DEBUGFS_READONLY_FILE(excessive_retries, 20, "%u",
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wl->stats.excessive_retries);
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static ssize_t tx_queue_len_read(struct file *file, char __user *userbuf,
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size_t count, loff_t *ppos)
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struct wl1251 *wl = file->private_data;
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queue_len = skb_queue_len(&wl->tx_queue);
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res = scnprintf(buf, sizeof(buf), "%u\n", queue_len);
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return simple_read_from_buffer(userbuf, count, ppos, buf, res);
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static const struct file_operations tx_queue_len_ops = {
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.read = tx_queue_len_read,
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.open = wl1251_open_file_generic,
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.llseek = generic_file_llseek,
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static ssize_t tx_queue_status_read(struct file *file, char __user *userbuf,
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size_t count, loff_t *ppos)
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struct wl1251 *wl = file->private_data;
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if (wl->tx_queue_stopped)
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len = scnprintf(buf, sizeof(buf), "%c\n", status);
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return simple_read_from_buffer(userbuf, count, ppos, buf, len);
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static const struct file_operations tx_queue_status_ops = {
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.read = tx_queue_status_read,
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.open = wl1251_open_file_generic,
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.llseek = generic_file_llseek,
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static void wl1251_debugfs_delete_files(struct wl1251 *wl)
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DEBUGFS_FWSTATS_DEL(tx, internal_desc_overflow);
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DEBUGFS_FWSTATS_DEL(rx, out_of_mem);
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DEBUGFS_FWSTATS_DEL(rx, hdr_overflow);
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DEBUGFS_FWSTATS_DEL(rx, hw_stuck);
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DEBUGFS_FWSTATS_DEL(rx, dropped);
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DEBUGFS_FWSTATS_DEL(rx, fcs_err);
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DEBUGFS_FWSTATS_DEL(rx, xfr_hint_trig);
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DEBUGFS_FWSTATS_DEL(rx, path_reset);
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DEBUGFS_FWSTATS_DEL(rx, reset_counter);
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DEBUGFS_FWSTATS_DEL(dma, rx_requested);
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DEBUGFS_FWSTATS_DEL(dma, rx_errors);
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DEBUGFS_FWSTATS_DEL(dma, tx_requested);
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DEBUGFS_FWSTATS_DEL(dma, tx_errors);
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DEBUGFS_FWSTATS_DEL(isr, cmd_cmplt);
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DEBUGFS_FWSTATS_DEL(isr, fiqs);
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DEBUGFS_FWSTATS_DEL(isr, rx_headers);
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DEBUGFS_FWSTATS_DEL(isr, rx_mem_overflow);
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DEBUGFS_FWSTATS_DEL(isr, rx_rdys);
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DEBUGFS_FWSTATS_DEL(isr, irqs);
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DEBUGFS_FWSTATS_DEL(isr, tx_procs);
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DEBUGFS_FWSTATS_DEL(isr, decrypt_done);
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DEBUGFS_FWSTATS_DEL(isr, dma0_done);
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DEBUGFS_FWSTATS_DEL(isr, dma1_done);
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DEBUGFS_FWSTATS_DEL(isr, tx_exch_complete);
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DEBUGFS_FWSTATS_DEL(isr, commands);
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DEBUGFS_FWSTATS_DEL(isr, rx_procs);
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DEBUGFS_FWSTATS_DEL(isr, hw_pm_mode_changes);
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DEBUGFS_FWSTATS_DEL(isr, host_acknowledges);
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DEBUGFS_FWSTATS_DEL(isr, pci_pm);
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DEBUGFS_FWSTATS_DEL(isr, wakeups);
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DEBUGFS_FWSTATS_DEL(isr, low_rssi);
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DEBUGFS_FWSTATS_DEL(wep, addr_key_count);
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DEBUGFS_FWSTATS_DEL(wep, default_key_count);
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/* skipping wep.reserved */
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DEBUGFS_FWSTATS_DEL(wep, key_not_found);
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DEBUGFS_FWSTATS_DEL(wep, decrypt_fail);
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DEBUGFS_FWSTATS_DEL(wep, packets);
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DEBUGFS_FWSTATS_DEL(wep, interrupt);
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DEBUGFS_FWSTATS_DEL(pwr, ps_enter);
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DEBUGFS_FWSTATS_DEL(pwr, elp_enter);
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DEBUGFS_FWSTATS_DEL(pwr, missing_bcns);
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DEBUGFS_FWSTATS_DEL(pwr, wake_on_host);
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DEBUGFS_FWSTATS_DEL(pwr, wake_on_timer_exp);
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DEBUGFS_FWSTATS_DEL(pwr, tx_with_ps);
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DEBUGFS_FWSTATS_DEL(pwr, tx_without_ps);
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DEBUGFS_FWSTATS_DEL(pwr, rcvd_beacons);
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DEBUGFS_FWSTATS_DEL(pwr, power_save_off);
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DEBUGFS_FWSTATS_DEL(pwr, enable_ps);
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DEBUGFS_FWSTATS_DEL(pwr, disable_ps);
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DEBUGFS_FWSTATS_DEL(pwr, fix_tsf_ps);
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/* skipping cont_miss_bcns_spread for now */
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DEBUGFS_FWSTATS_DEL(pwr, rcvd_awake_beacons);
324
DEBUGFS_FWSTATS_DEL(mic, rx_pkts);
325
DEBUGFS_FWSTATS_DEL(mic, calc_failure);
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DEBUGFS_FWSTATS_DEL(aes, encrypt_fail);
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DEBUGFS_FWSTATS_DEL(aes, decrypt_fail);
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DEBUGFS_FWSTATS_DEL(aes, encrypt_packets);
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DEBUGFS_FWSTATS_DEL(aes, decrypt_packets);
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DEBUGFS_FWSTATS_DEL(aes, encrypt_interrupt);
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DEBUGFS_FWSTATS_DEL(aes, decrypt_interrupt);
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DEBUGFS_FWSTATS_DEL(event, heart_beat);
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DEBUGFS_FWSTATS_DEL(event, calibration);
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DEBUGFS_FWSTATS_DEL(event, rx_mismatch);
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DEBUGFS_FWSTATS_DEL(event, rx_mem_empty);
338
DEBUGFS_FWSTATS_DEL(event, rx_pool);
339
DEBUGFS_FWSTATS_DEL(event, oom_late);
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DEBUGFS_FWSTATS_DEL(event, phy_transmit_error);
341
DEBUGFS_FWSTATS_DEL(event, tx_stuck);
343
DEBUGFS_FWSTATS_DEL(ps, pspoll_timeouts);
344
DEBUGFS_FWSTATS_DEL(ps, upsd_timeouts);
345
DEBUGFS_FWSTATS_DEL(ps, upsd_max_sptime);
346
DEBUGFS_FWSTATS_DEL(ps, upsd_max_apturn);
347
DEBUGFS_FWSTATS_DEL(ps, pspoll_max_apturn);
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DEBUGFS_FWSTATS_DEL(ps, pspoll_utilization);
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DEBUGFS_FWSTATS_DEL(ps, upsd_utilization);
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DEBUGFS_FWSTATS_DEL(rxpipe, rx_prep_beacon_drop);
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DEBUGFS_FWSTATS_DEL(rxpipe, descr_host_int_trig_rx_data);
353
DEBUGFS_FWSTATS_DEL(rxpipe, beacon_buffer_thres_host_int_trig_rx_data);
354
DEBUGFS_FWSTATS_DEL(rxpipe, missed_beacon_host_int_trig_rx_data);
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DEBUGFS_FWSTATS_DEL(rxpipe, tx_xfr_host_int_trig_rx_data);
357
DEBUGFS_DEL(tx_queue_len);
358
DEBUGFS_DEL(tx_queue_status);
359
DEBUGFS_DEL(retry_count);
360
DEBUGFS_DEL(excessive_retries);
363
static int wl1251_debugfs_add_files(struct wl1251 *wl)
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DEBUGFS_FWSTATS_ADD(tx, internal_desc_overflow);
369
DEBUGFS_FWSTATS_ADD(rx, out_of_mem);
370
DEBUGFS_FWSTATS_ADD(rx, hdr_overflow);
371
DEBUGFS_FWSTATS_ADD(rx, hw_stuck);
372
DEBUGFS_FWSTATS_ADD(rx, dropped);
373
DEBUGFS_FWSTATS_ADD(rx, fcs_err);
374
DEBUGFS_FWSTATS_ADD(rx, xfr_hint_trig);
375
DEBUGFS_FWSTATS_ADD(rx, path_reset);
376
DEBUGFS_FWSTATS_ADD(rx, reset_counter);
378
DEBUGFS_FWSTATS_ADD(dma, rx_requested);
379
DEBUGFS_FWSTATS_ADD(dma, rx_errors);
380
DEBUGFS_FWSTATS_ADD(dma, tx_requested);
381
DEBUGFS_FWSTATS_ADD(dma, tx_errors);
383
DEBUGFS_FWSTATS_ADD(isr, cmd_cmplt);
384
DEBUGFS_FWSTATS_ADD(isr, fiqs);
385
DEBUGFS_FWSTATS_ADD(isr, rx_headers);
386
DEBUGFS_FWSTATS_ADD(isr, rx_mem_overflow);
387
DEBUGFS_FWSTATS_ADD(isr, rx_rdys);
388
DEBUGFS_FWSTATS_ADD(isr, irqs);
389
DEBUGFS_FWSTATS_ADD(isr, tx_procs);
390
DEBUGFS_FWSTATS_ADD(isr, decrypt_done);
391
DEBUGFS_FWSTATS_ADD(isr, dma0_done);
392
DEBUGFS_FWSTATS_ADD(isr, dma1_done);
393
DEBUGFS_FWSTATS_ADD(isr, tx_exch_complete);
394
DEBUGFS_FWSTATS_ADD(isr, commands);
395
DEBUGFS_FWSTATS_ADD(isr, rx_procs);
396
DEBUGFS_FWSTATS_ADD(isr, hw_pm_mode_changes);
397
DEBUGFS_FWSTATS_ADD(isr, host_acknowledges);
398
DEBUGFS_FWSTATS_ADD(isr, pci_pm);
399
DEBUGFS_FWSTATS_ADD(isr, wakeups);
400
DEBUGFS_FWSTATS_ADD(isr, low_rssi);
402
DEBUGFS_FWSTATS_ADD(wep, addr_key_count);
403
DEBUGFS_FWSTATS_ADD(wep, default_key_count);
404
/* skipping wep.reserved */
405
DEBUGFS_FWSTATS_ADD(wep, key_not_found);
406
DEBUGFS_FWSTATS_ADD(wep, decrypt_fail);
407
DEBUGFS_FWSTATS_ADD(wep, packets);
408
DEBUGFS_FWSTATS_ADD(wep, interrupt);
410
DEBUGFS_FWSTATS_ADD(pwr, ps_enter);
411
DEBUGFS_FWSTATS_ADD(pwr, elp_enter);
412
DEBUGFS_FWSTATS_ADD(pwr, missing_bcns);
413
DEBUGFS_FWSTATS_ADD(pwr, wake_on_host);
414
DEBUGFS_FWSTATS_ADD(pwr, wake_on_timer_exp);
415
DEBUGFS_FWSTATS_ADD(pwr, tx_with_ps);
416
DEBUGFS_FWSTATS_ADD(pwr, tx_without_ps);
417
DEBUGFS_FWSTATS_ADD(pwr, rcvd_beacons);
418
DEBUGFS_FWSTATS_ADD(pwr, power_save_off);
419
DEBUGFS_FWSTATS_ADD(pwr, enable_ps);
420
DEBUGFS_FWSTATS_ADD(pwr, disable_ps);
421
DEBUGFS_FWSTATS_ADD(pwr, fix_tsf_ps);
422
/* skipping cont_miss_bcns_spread for now */
423
DEBUGFS_FWSTATS_ADD(pwr, rcvd_awake_beacons);
425
DEBUGFS_FWSTATS_ADD(mic, rx_pkts);
426
DEBUGFS_FWSTATS_ADD(mic, calc_failure);
428
DEBUGFS_FWSTATS_ADD(aes, encrypt_fail);
429
DEBUGFS_FWSTATS_ADD(aes, decrypt_fail);
430
DEBUGFS_FWSTATS_ADD(aes, encrypt_packets);
431
DEBUGFS_FWSTATS_ADD(aes, decrypt_packets);
432
DEBUGFS_FWSTATS_ADD(aes, encrypt_interrupt);
433
DEBUGFS_FWSTATS_ADD(aes, decrypt_interrupt);
435
DEBUGFS_FWSTATS_ADD(event, heart_beat);
436
DEBUGFS_FWSTATS_ADD(event, calibration);
437
DEBUGFS_FWSTATS_ADD(event, rx_mismatch);
438
DEBUGFS_FWSTATS_ADD(event, rx_mem_empty);
439
DEBUGFS_FWSTATS_ADD(event, rx_pool);
440
DEBUGFS_FWSTATS_ADD(event, oom_late);
441
DEBUGFS_FWSTATS_ADD(event, phy_transmit_error);
442
DEBUGFS_FWSTATS_ADD(event, tx_stuck);
444
DEBUGFS_FWSTATS_ADD(ps, pspoll_timeouts);
445
DEBUGFS_FWSTATS_ADD(ps, upsd_timeouts);
446
DEBUGFS_FWSTATS_ADD(ps, upsd_max_sptime);
447
DEBUGFS_FWSTATS_ADD(ps, upsd_max_apturn);
448
DEBUGFS_FWSTATS_ADD(ps, pspoll_max_apturn);
449
DEBUGFS_FWSTATS_ADD(ps, pspoll_utilization);
450
DEBUGFS_FWSTATS_ADD(ps, upsd_utilization);
452
DEBUGFS_FWSTATS_ADD(rxpipe, rx_prep_beacon_drop);
453
DEBUGFS_FWSTATS_ADD(rxpipe, descr_host_int_trig_rx_data);
454
DEBUGFS_FWSTATS_ADD(rxpipe, beacon_buffer_thres_host_int_trig_rx_data);
455
DEBUGFS_FWSTATS_ADD(rxpipe, missed_beacon_host_int_trig_rx_data);
456
DEBUGFS_FWSTATS_ADD(rxpipe, tx_xfr_host_int_trig_rx_data);
458
DEBUGFS_ADD(tx_queue_len, wl->debugfs.rootdir);
459
DEBUGFS_ADD(tx_queue_status, wl->debugfs.rootdir);
460
DEBUGFS_ADD(retry_count, wl->debugfs.rootdir);
461
DEBUGFS_ADD(excessive_retries, wl->debugfs.rootdir);
465
wl1251_debugfs_delete_files(wl);
470
void wl1251_debugfs_reset(struct wl1251 *wl)
472
if (wl->stats.fw_stats != NULL)
473
memset(wl->stats.fw_stats, 0, sizeof(*wl->stats.fw_stats));
474
wl->stats.retry_count = 0;
475
wl->stats.excessive_retries = 0;
478
int wl1251_debugfs_init(struct wl1251 *wl)
482
wl->debugfs.rootdir = debugfs_create_dir(KBUILD_MODNAME, NULL);
484
if (IS_ERR(wl->debugfs.rootdir)) {
485
ret = PTR_ERR(wl->debugfs.rootdir);
486
wl->debugfs.rootdir = NULL;
490
wl->debugfs.fw_statistics = debugfs_create_dir("fw-statistics",
491
wl->debugfs.rootdir);
493
if (IS_ERR(wl->debugfs.fw_statistics)) {
494
ret = PTR_ERR(wl->debugfs.fw_statistics);
495
wl->debugfs.fw_statistics = NULL;
499
wl->stats.fw_stats = kzalloc(sizeof(*wl->stats.fw_stats),
502
if (!wl->stats.fw_stats) {
507
wl->stats.fw_stats_update = jiffies;
509
ret = wl1251_debugfs_add_files(wl);
517
kfree(wl->stats.fw_stats);
518
wl->stats.fw_stats = NULL;
521
debugfs_remove(wl->debugfs.fw_statistics);
522
wl->debugfs.fw_statistics = NULL;
525
debugfs_remove(wl->debugfs.rootdir);
526
wl->debugfs.rootdir = NULL;
532
void wl1251_debugfs_exit(struct wl1251 *wl)
534
wl1251_debugfs_delete_files(wl);
536
kfree(wl->stats.fw_stats);
537
wl->stats.fw_stats = NULL;
539
debugfs_remove(wl->debugfs.fw_statistics);
540
wl->debugfs.fw_statistics = NULL;
542
debugfs_remove(wl->debugfs.rootdir);
543
wl->debugfs.rootdir = NULL;