From: John W. Linville Date: Fri, 13 Apr 2012 18:28:56 +0000 (-0400) Subject: Merge branch 'for-linville' of git://git.kernel.org/pub/scm/linux/kernel/git/luca... X-Git-Url: https://openfabrics.org/gitweb/?a=commitdiff_plain;h=f277683477c7bdff8236e731cf882b3ef89dde0d;p=~shefty%2Frdma-dev.git Merge branch 'for-linville' of git://git.kernel.org/pub/scm/linux/kernel/git/luca/wl12xx --- f277683477c7bdff8236e731cf882b3ef89dde0d diff --cc drivers/net/wireless/ti/wl1251/debugfs.c index 00000000000,6c274007d20..448da1f8c22 mode 000000,100644..100644 --- a/drivers/net/wireless/ti/wl1251/debugfs.c +++ b/drivers/net/wireless/ti/wl1251/debugfs.c @@@ -1,0 -1,545 +1,539 @@@ + /* + * This file is part of wl1251 + * + * Copyright (C) 2009 Nokia Corporation + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * version 2 as published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA + * 02110-1301 USA + * + */ + + #include "debugfs.h" + + #include + #include + + #include "wl1251.h" + #include "acx.h" + #include "ps.h" + + /* ms */ + #define WL1251_DEBUGFS_STATS_LIFETIME 1000 + + /* debugfs macros idea from mac80211 */ + + #define DEBUGFS_READONLY_FILE(name, buflen, fmt, value...) \ + static ssize_t name## _read(struct file *file, char __user *userbuf, \ + size_t count, loff_t *ppos) \ + { \ + struct wl1251 *wl = file->private_data; \ + char buf[buflen]; \ + int res; \ + \ + res = scnprintf(buf, buflen, fmt "\n", ##value); \ + return simple_read_from_buffer(userbuf, count, ppos, buf, res); \ + } \ + \ + static const struct file_operations name## _ops = { \ + .read = name## _read, \ - .open = wl1251_open_file_generic, \ ++ .open = simple_open, \ + .llseek = generic_file_llseek, \ + }; + + #define DEBUGFS_ADD(name, parent) \ + wl->debugfs.name = debugfs_create_file(#name, 0400, parent, \ + wl, &name## _ops); \ + if (IS_ERR(wl->debugfs.name)) { \ + ret = PTR_ERR(wl->debugfs.name); \ + wl->debugfs.name = NULL; \ + goto out; \ + } + + #define DEBUGFS_DEL(name) \ + do { \ + debugfs_remove(wl->debugfs.name); \ + wl->debugfs.name = NULL; \ + } while (0) + + #define DEBUGFS_FWSTATS_FILE(sub, name, buflen, fmt) \ + static ssize_t sub## _ ##name## _read(struct file *file, \ + char __user *userbuf, \ + size_t count, loff_t *ppos) \ + { \ + struct wl1251 *wl = file->private_data; \ + char buf[buflen]; \ + int res; \ + \ + wl1251_debugfs_update_stats(wl); \ + \ + res = scnprintf(buf, buflen, fmt "\n", \ + wl->stats.fw_stats->sub.name); \ + return simple_read_from_buffer(userbuf, count, ppos, buf, res); \ + } \ + \ + static const struct file_operations sub## _ ##name## _ops = { \ + .read = sub## _ ##name## _read, \ - .open = wl1251_open_file_generic, \ ++ .open = simple_open, \ + .llseek = generic_file_llseek, \ + }; + + #define DEBUGFS_FWSTATS_ADD(sub, name) \ + DEBUGFS_ADD(sub## _ ##name, wl->debugfs.fw_statistics) + + #define DEBUGFS_FWSTATS_DEL(sub, name) \ + DEBUGFS_DEL(sub## _ ##name) + + static void wl1251_debugfs_update_stats(struct wl1251 *wl) + { + int ret; + + mutex_lock(&wl->mutex); + + ret = wl1251_ps_elp_wakeup(wl); + if (ret < 0) + goto out; + + if (wl->state == WL1251_STATE_ON && + time_after(jiffies, wl->stats.fw_stats_update + + msecs_to_jiffies(WL1251_DEBUGFS_STATS_LIFETIME))) { + wl1251_acx_statistics(wl, wl->stats.fw_stats); + wl->stats.fw_stats_update = jiffies; + } + + wl1251_ps_elp_sleep(wl); + + out: + mutex_unlock(&wl->mutex); + } + -static int wl1251_open_file_generic(struct inode *inode, struct file *file) -{ - file->private_data = inode->i_private; - return 0; -} - + DEBUGFS_FWSTATS_FILE(tx, internal_desc_overflow, 20, "%u"); + + DEBUGFS_FWSTATS_FILE(rx, out_of_mem, 20, "%u"); + DEBUGFS_FWSTATS_FILE(rx, hdr_overflow, 20, "%u"); + DEBUGFS_FWSTATS_FILE(rx, hw_stuck, 20, "%u"); + DEBUGFS_FWSTATS_FILE(rx, dropped, 20, "%u"); + DEBUGFS_FWSTATS_FILE(rx, fcs_err, 20, "%u"); + DEBUGFS_FWSTATS_FILE(rx, xfr_hint_trig, 20, "%u"); + DEBUGFS_FWSTATS_FILE(rx, path_reset, 20, "%u"); + DEBUGFS_FWSTATS_FILE(rx, reset_counter, 20, "%u"); + + DEBUGFS_FWSTATS_FILE(dma, rx_requested, 20, "%u"); + DEBUGFS_FWSTATS_FILE(dma, rx_errors, 20, "%u"); + DEBUGFS_FWSTATS_FILE(dma, tx_requested, 20, "%u"); + DEBUGFS_FWSTATS_FILE(dma, tx_errors, 20, "%u"); + + DEBUGFS_FWSTATS_FILE(isr, cmd_cmplt, 20, "%u"); + DEBUGFS_FWSTATS_FILE(isr, fiqs, 20, "%u"); + DEBUGFS_FWSTATS_FILE(isr, rx_headers, 20, "%u"); + DEBUGFS_FWSTATS_FILE(isr, rx_mem_overflow, 20, "%u"); + DEBUGFS_FWSTATS_FILE(isr, rx_rdys, 20, "%u"); + DEBUGFS_FWSTATS_FILE(isr, irqs, 20, "%u"); + DEBUGFS_FWSTATS_FILE(isr, tx_procs, 20, "%u"); + DEBUGFS_FWSTATS_FILE(isr, decrypt_done, 20, "%u"); + DEBUGFS_FWSTATS_FILE(isr, dma0_done, 20, "%u"); + DEBUGFS_FWSTATS_FILE(isr, dma1_done, 20, "%u"); + DEBUGFS_FWSTATS_FILE(isr, tx_exch_complete, 20, "%u"); + DEBUGFS_FWSTATS_FILE(isr, commands, 20, "%u"); + DEBUGFS_FWSTATS_FILE(isr, rx_procs, 20, "%u"); + DEBUGFS_FWSTATS_FILE(isr, hw_pm_mode_changes, 20, "%u"); + DEBUGFS_FWSTATS_FILE(isr, host_acknowledges, 20, "%u"); + DEBUGFS_FWSTATS_FILE(isr, pci_pm, 20, "%u"); + DEBUGFS_FWSTATS_FILE(isr, wakeups, 20, "%u"); + DEBUGFS_FWSTATS_FILE(isr, low_rssi, 20, "%u"); + + DEBUGFS_FWSTATS_FILE(wep, addr_key_count, 20, "%u"); + DEBUGFS_FWSTATS_FILE(wep, default_key_count, 20, "%u"); + /* skipping wep.reserved */ + DEBUGFS_FWSTATS_FILE(wep, key_not_found, 20, "%u"); + DEBUGFS_FWSTATS_FILE(wep, decrypt_fail, 20, "%u"); + DEBUGFS_FWSTATS_FILE(wep, packets, 20, "%u"); + DEBUGFS_FWSTATS_FILE(wep, interrupt, 20, "%u"); + + DEBUGFS_FWSTATS_FILE(pwr, ps_enter, 20, "%u"); + DEBUGFS_FWSTATS_FILE(pwr, elp_enter, 20, "%u"); + DEBUGFS_FWSTATS_FILE(pwr, missing_bcns, 20, "%u"); + DEBUGFS_FWSTATS_FILE(pwr, wake_on_host, 20, "%u"); + DEBUGFS_FWSTATS_FILE(pwr, wake_on_timer_exp, 20, "%u"); + DEBUGFS_FWSTATS_FILE(pwr, tx_with_ps, 20, "%u"); + DEBUGFS_FWSTATS_FILE(pwr, tx_without_ps, 20, "%u"); + DEBUGFS_FWSTATS_FILE(pwr, rcvd_beacons, 20, "%u"); + DEBUGFS_FWSTATS_FILE(pwr, power_save_off, 20, "%u"); + DEBUGFS_FWSTATS_FILE(pwr, enable_ps, 20, "%u"); + DEBUGFS_FWSTATS_FILE(pwr, disable_ps, 20, "%u"); + DEBUGFS_FWSTATS_FILE(pwr, fix_tsf_ps, 20, "%u"); + /* skipping cont_miss_bcns_spread for now */ + DEBUGFS_FWSTATS_FILE(pwr, rcvd_awake_beacons, 20, "%u"); + + DEBUGFS_FWSTATS_FILE(mic, rx_pkts, 20, "%u"); + DEBUGFS_FWSTATS_FILE(mic, calc_failure, 20, "%u"); + + DEBUGFS_FWSTATS_FILE(aes, encrypt_fail, 20, "%u"); + DEBUGFS_FWSTATS_FILE(aes, decrypt_fail, 20, "%u"); + DEBUGFS_FWSTATS_FILE(aes, encrypt_packets, 20, "%u"); + DEBUGFS_FWSTATS_FILE(aes, decrypt_packets, 20, "%u"); + DEBUGFS_FWSTATS_FILE(aes, encrypt_interrupt, 20, "%u"); + DEBUGFS_FWSTATS_FILE(aes, decrypt_interrupt, 20, "%u"); + + DEBUGFS_FWSTATS_FILE(event, heart_beat, 20, "%u"); + DEBUGFS_FWSTATS_FILE(event, calibration, 20, "%u"); + DEBUGFS_FWSTATS_FILE(event, rx_mismatch, 20, "%u"); + DEBUGFS_FWSTATS_FILE(event, rx_mem_empty, 20, "%u"); + DEBUGFS_FWSTATS_FILE(event, rx_pool, 20, "%u"); + DEBUGFS_FWSTATS_FILE(event, oom_late, 20, "%u"); + DEBUGFS_FWSTATS_FILE(event, phy_transmit_error, 20, "%u"); + DEBUGFS_FWSTATS_FILE(event, tx_stuck, 20, "%u"); + + DEBUGFS_FWSTATS_FILE(ps, pspoll_timeouts, 20, "%u"); + DEBUGFS_FWSTATS_FILE(ps, upsd_timeouts, 20, "%u"); + DEBUGFS_FWSTATS_FILE(ps, upsd_max_sptime, 20, "%u"); + DEBUGFS_FWSTATS_FILE(ps, upsd_max_apturn, 20, "%u"); + DEBUGFS_FWSTATS_FILE(ps, pspoll_max_apturn, 20, "%u"); + DEBUGFS_FWSTATS_FILE(ps, pspoll_utilization, 20, "%u"); + DEBUGFS_FWSTATS_FILE(ps, upsd_utilization, 20, "%u"); + + DEBUGFS_FWSTATS_FILE(rxpipe, rx_prep_beacon_drop, 20, "%u"); + DEBUGFS_FWSTATS_FILE(rxpipe, descr_host_int_trig_rx_data, 20, "%u"); + DEBUGFS_FWSTATS_FILE(rxpipe, beacon_buffer_thres_host_int_trig_rx_data, + 20, "%u"); + DEBUGFS_FWSTATS_FILE(rxpipe, missed_beacon_host_int_trig_rx_data, 20, "%u"); + DEBUGFS_FWSTATS_FILE(rxpipe, tx_xfr_host_int_trig_rx_data, 20, "%u"); + + DEBUGFS_READONLY_FILE(retry_count, 20, "%u", wl->stats.retry_count); + DEBUGFS_READONLY_FILE(excessive_retries, 20, "%u", + wl->stats.excessive_retries); + + static ssize_t tx_queue_len_read(struct file *file, char __user *userbuf, + size_t count, loff_t *ppos) + { + struct wl1251 *wl = file->private_data; + u32 queue_len; + char buf[20]; + int res; + + queue_len = skb_queue_len(&wl->tx_queue); + + res = scnprintf(buf, sizeof(buf), "%u\n", queue_len); + return simple_read_from_buffer(userbuf, count, ppos, buf, res); + } + + static const struct file_operations tx_queue_len_ops = { + .read = tx_queue_len_read, - .open = wl1251_open_file_generic, ++ .open = simple_open, + .llseek = generic_file_llseek, + }; + + static ssize_t tx_queue_status_read(struct file *file, char __user *userbuf, + size_t count, loff_t *ppos) + { + struct wl1251 *wl = file->private_data; + char buf[3], status; + int len; + + if (wl->tx_queue_stopped) + status = 's'; + else + status = 'r'; + + len = scnprintf(buf, sizeof(buf), "%c\n", status); + return simple_read_from_buffer(userbuf, count, ppos, buf, len); + } + + static const struct file_operations tx_queue_status_ops = { + .read = tx_queue_status_read, - .open = wl1251_open_file_generic, ++ .open = simple_open, + .llseek = generic_file_llseek, + }; + + static void wl1251_debugfs_delete_files(struct wl1251 *wl) + { + DEBUGFS_FWSTATS_DEL(tx, internal_desc_overflow); + + DEBUGFS_FWSTATS_DEL(rx, out_of_mem); + DEBUGFS_FWSTATS_DEL(rx, hdr_overflow); + DEBUGFS_FWSTATS_DEL(rx, hw_stuck); + DEBUGFS_FWSTATS_DEL(rx, dropped); + DEBUGFS_FWSTATS_DEL(rx, fcs_err); + DEBUGFS_FWSTATS_DEL(rx, xfr_hint_trig); + DEBUGFS_FWSTATS_DEL(rx, path_reset); + DEBUGFS_FWSTATS_DEL(rx, reset_counter); + + DEBUGFS_FWSTATS_DEL(dma, rx_requested); + DEBUGFS_FWSTATS_DEL(dma, rx_errors); + DEBUGFS_FWSTATS_DEL(dma, tx_requested); + DEBUGFS_FWSTATS_DEL(dma, tx_errors); + + DEBUGFS_FWSTATS_DEL(isr, cmd_cmplt); + DEBUGFS_FWSTATS_DEL(isr, fiqs); + DEBUGFS_FWSTATS_DEL(isr, rx_headers); + DEBUGFS_FWSTATS_DEL(isr, rx_mem_overflow); + DEBUGFS_FWSTATS_DEL(isr, rx_rdys); + DEBUGFS_FWSTATS_DEL(isr, irqs); + DEBUGFS_FWSTATS_DEL(isr, tx_procs); + DEBUGFS_FWSTATS_DEL(isr, decrypt_done); + DEBUGFS_FWSTATS_DEL(isr, dma0_done); + DEBUGFS_FWSTATS_DEL(isr, dma1_done); + DEBUGFS_FWSTATS_DEL(isr, tx_exch_complete); + DEBUGFS_FWSTATS_DEL(isr, commands); + DEBUGFS_FWSTATS_DEL(isr, rx_procs); + DEBUGFS_FWSTATS_DEL(isr, hw_pm_mode_changes); + DEBUGFS_FWSTATS_DEL(isr, host_acknowledges); + DEBUGFS_FWSTATS_DEL(isr, pci_pm); + DEBUGFS_FWSTATS_DEL(isr, wakeups); + DEBUGFS_FWSTATS_DEL(isr, low_rssi); + + DEBUGFS_FWSTATS_DEL(wep, addr_key_count); + DEBUGFS_FWSTATS_DEL(wep, default_key_count); + /* skipping wep.reserved */ + DEBUGFS_FWSTATS_DEL(wep, key_not_found); + DEBUGFS_FWSTATS_DEL(wep, decrypt_fail); + DEBUGFS_FWSTATS_DEL(wep, packets); + DEBUGFS_FWSTATS_DEL(wep, interrupt); + + DEBUGFS_FWSTATS_DEL(pwr, ps_enter); + DEBUGFS_FWSTATS_DEL(pwr, elp_enter); + DEBUGFS_FWSTATS_DEL(pwr, missing_bcns); + DEBUGFS_FWSTATS_DEL(pwr, wake_on_host); + DEBUGFS_FWSTATS_DEL(pwr, wake_on_timer_exp); + DEBUGFS_FWSTATS_DEL(pwr, tx_with_ps); + DEBUGFS_FWSTATS_DEL(pwr, tx_without_ps); + DEBUGFS_FWSTATS_DEL(pwr, rcvd_beacons); + DEBUGFS_FWSTATS_DEL(pwr, power_save_off); + DEBUGFS_FWSTATS_DEL(pwr, enable_ps); + DEBUGFS_FWSTATS_DEL(pwr, disable_ps); + DEBUGFS_FWSTATS_DEL(pwr, fix_tsf_ps); + /* skipping cont_miss_bcns_spread for now */ + DEBUGFS_FWSTATS_DEL(pwr, rcvd_awake_beacons); + + DEBUGFS_FWSTATS_DEL(mic, rx_pkts); + DEBUGFS_FWSTATS_DEL(mic, calc_failure); + + DEBUGFS_FWSTATS_DEL(aes, encrypt_fail); + DEBUGFS_FWSTATS_DEL(aes, decrypt_fail); + DEBUGFS_FWSTATS_DEL(aes, encrypt_packets); + DEBUGFS_FWSTATS_DEL(aes, decrypt_packets); + DEBUGFS_FWSTATS_DEL(aes, encrypt_interrupt); + DEBUGFS_FWSTATS_DEL(aes, decrypt_interrupt); + + DEBUGFS_FWSTATS_DEL(event, heart_beat); + DEBUGFS_FWSTATS_DEL(event, calibration); + DEBUGFS_FWSTATS_DEL(event, rx_mismatch); + DEBUGFS_FWSTATS_DEL(event, rx_mem_empty); + DEBUGFS_FWSTATS_DEL(event, rx_pool); + DEBUGFS_FWSTATS_DEL(event, oom_late); + DEBUGFS_FWSTATS_DEL(event, phy_transmit_error); + DEBUGFS_FWSTATS_DEL(event, tx_stuck); + + DEBUGFS_FWSTATS_DEL(ps, pspoll_timeouts); + DEBUGFS_FWSTATS_DEL(ps, upsd_timeouts); + DEBUGFS_FWSTATS_DEL(ps, upsd_max_sptime); + DEBUGFS_FWSTATS_DEL(ps, upsd_max_apturn); + DEBUGFS_FWSTATS_DEL(ps, pspoll_max_apturn); + DEBUGFS_FWSTATS_DEL(ps, pspoll_utilization); + DEBUGFS_FWSTATS_DEL(ps, upsd_utilization); + + DEBUGFS_FWSTATS_DEL(rxpipe, rx_prep_beacon_drop); + DEBUGFS_FWSTATS_DEL(rxpipe, descr_host_int_trig_rx_data); + DEBUGFS_FWSTATS_DEL(rxpipe, beacon_buffer_thres_host_int_trig_rx_data); + DEBUGFS_FWSTATS_DEL(rxpipe, missed_beacon_host_int_trig_rx_data); + DEBUGFS_FWSTATS_DEL(rxpipe, tx_xfr_host_int_trig_rx_data); + + DEBUGFS_DEL(tx_queue_len); + DEBUGFS_DEL(tx_queue_status); + DEBUGFS_DEL(retry_count); + DEBUGFS_DEL(excessive_retries); + } + + static int wl1251_debugfs_add_files(struct wl1251 *wl) + { + int ret = 0; + + DEBUGFS_FWSTATS_ADD(tx, internal_desc_overflow); + + DEBUGFS_FWSTATS_ADD(rx, out_of_mem); + DEBUGFS_FWSTATS_ADD(rx, hdr_overflow); + DEBUGFS_FWSTATS_ADD(rx, hw_stuck); + DEBUGFS_FWSTATS_ADD(rx, dropped); + DEBUGFS_FWSTATS_ADD(rx, fcs_err); + DEBUGFS_FWSTATS_ADD(rx, xfr_hint_trig); + DEBUGFS_FWSTATS_ADD(rx, path_reset); + DEBUGFS_FWSTATS_ADD(rx, reset_counter); + + DEBUGFS_FWSTATS_ADD(dma, rx_requested); + DEBUGFS_FWSTATS_ADD(dma, rx_errors); + DEBUGFS_FWSTATS_ADD(dma, tx_requested); + DEBUGFS_FWSTATS_ADD(dma, tx_errors); + + DEBUGFS_FWSTATS_ADD(isr, cmd_cmplt); + DEBUGFS_FWSTATS_ADD(isr, fiqs); + DEBUGFS_FWSTATS_ADD(isr, rx_headers); + DEBUGFS_FWSTATS_ADD(isr, rx_mem_overflow); + DEBUGFS_FWSTATS_ADD(isr, rx_rdys); + DEBUGFS_FWSTATS_ADD(isr, irqs); + DEBUGFS_FWSTATS_ADD(isr, tx_procs); + DEBUGFS_FWSTATS_ADD(isr, decrypt_done); + DEBUGFS_FWSTATS_ADD(isr, dma0_done); + DEBUGFS_FWSTATS_ADD(isr, dma1_done); + DEBUGFS_FWSTATS_ADD(isr, tx_exch_complete); + DEBUGFS_FWSTATS_ADD(isr, commands); + DEBUGFS_FWSTATS_ADD(isr, rx_procs); + DEBUGFS_FWSTATS_ADD(isr, hw_pm_mode_changes); + DEBUGFS_FWSTATS_ADD(isr, host_acknowledges); + DEBUGFS_FWSTATS_ADD(isr, pci_pm); + DEBUGFS_FWSTATS_ADD(isr, wakeups); + DEBUGFS_FWSTATS_ADD(isr, low_rssi); + + DEBUGFS_FWSTATS_ADD(wep, addr_key_count); + DEBUGFS_FWSTATS_ADD(wep, default_key_count); + /* skipping wep.reserved */ + DEBUGFS_FWSTATS_ADD(wep, key_not_found); + DEBUGFS_FWSTATS_ADD(wep, decrypt_fail); + DEBUGFS_FWSTATS_ADD(wep, packets); + DEBUGFS_FWSTATS_ADD(wep, interrupt); + + DEBUGFS_FWSTATS_ADD(pwr, ps_enter); + DEBUGFS_FWSTATS_ADD(pwr, elp_enter); + DEBUGFS_FWSTATS_ADD(pwr, missing_bcns); + DEBUGFS_FWSTATS_ADD(pwr, wake_on_host); + DEBUGFS_FWSTATS_ADD(pwr, wake_on_timer_exp); + DEBUGFS_FWSTATS_ADD(pwr, tx_with_ps); + DEBUGFS_FWSTATS_ADD(pwr, tx_without_ps); + DEBUGFS_FWSTATS_ADD(pwr, rcvd_beacons); + DEBUGFS_FWSTATS_ADD(pwr, power_save_off); + DEBUGFS_FWSTATS_ADD(pwr, enable_ps); + DEBUGFS_FWSTATS_ADD(pwr, disable_ps); + DEBUGFS_FWSTATS_ADD(pwr, fix_tsf_ps); + /* skipping cont_miss_bcns_spread for now */ + DEBUGFS_FWSTATS_ADD(pwr, rcvd_awake_beacons); + + DEBUGFS_FWSTATS_ADD(mic, rx_pkts); + DEBUGFS_FWSTATS_ADD(mic, calc_failure); + + DEBUGFS_FWSTATS_ADD(aes, encrypt_fail); + DEBUGFS_FWSTATS_ADD(aes, decrypt_fail); + DEBUGFS_FWSTATS_ADD(aes, encrypt_packets); + DEBUGFS_FWSTATS_ADD(aes, decrypt_packets); + DEBUGFS_FWSTATS_ADD(aes, encrypt_interrupt); + DEBUGFS_FWSTATS_ADD(aes, decrypt_interrupt); + + DEBUGFS_FWSTATS_ADD(event, heart_beat); + DEBUGFS_FWSTATS_ADD(event, calibration); + DEBUGFS_FWSTATS_ADD(event, rx_mismatch); + DEBUGFS_FWSTATS_ADD(event, rx_mem_empty); + DEBUGFS_FWSTATS_ADD(event, rx_pool); + DEBUGFS_FWSTATS_ADD(event, oom_late); + DEBUGFS_FWSTATS_ADD(event, phy_transmit_error); + DEBUGFS_FWSTATS_ADD(event, tx_stuck); + + DEBUGFS_FWSTATS_ADD(ps, pspoll_timeouts); + DEBUGFS_FWSTATS_ADD(ps, upsd_timeouts); + DEBUGFS_FWSTATS_ADD(ps, upsd_max_sptime); + DEBUGFS_FWSTATS_ADD(ps, upsd_max_apturn); + DEBUGFS_FWSTATS_ADD(ps, pspoll_max_apturn); + DEBUGFS_FWSTATS_ADD(ps, pspoll_utilization); + DEBUGFS_FWSTATS_ADD(ps, upsd_utilization); + + DEBUGFS_FWSTATS_ADD(rxpipe, rx_prep_beacon_drop); + DEBUGFS_FWSTATS_ADD(rxpipe, descr_host_int_trig_rx_data); + DEBUGFS_FWSTATS_ADD(rxpipe, beacon_buffer_thres_host_int_trig_rx_data); + DEBUGFS_FWSTATS_ADD(rxpipe, missed_beacon_host_int_trig_rx_data); + DEBUGFS_FWSTATS_ADD(rxpipe, tx_xfr_host_int_trig_rx_data); + + DEBUGFS_ADD(tx_queue_len, wl->debugfs.rootdir); + DEBUGFS_ADD(tx_queue_status, wl->debugfs.rootdir); + DEBUGFS_ADD(retry_count, wl->debugfs.rootdir); + DEBUGFS_ADD(excessive_retries, wl->debugfs.rootdir); + + out: + if (ret < 0) + wl1251_debugfs_delete_files(wl); + + return ret; + } + + void wl1251_debugfs_reset(struct wl1251 *wl) + { + if (wl->stats.fw_stats != NULL) + memset(wl->stats.fw_stats, 0, sizeof(*wl->stats.fw_stats)); + wl->stats.retry_count = 0; + wl->stats.excessive_retries = 0; + } + + int wl1251_debugfs_init(struct wl1251 *wl) + { + int ret; + + wl->debugfs.rootdir = debugfs_create_dir(KBUILD_MODNAME, NULL); + + if (IS_ERR(wl->debugfs.rootdir)) { + ret = PTR_ERR(wl->debugfs.rootdir); + wl->debugfs.rootdir = NULL; + goto err; + } + + wl->debugfs.fw_statistics = debugfs_create_dir("fw-statistics", + wl->debugfs.rootdir); + + if (IS_ERR(wl->debugfs.fw_statistics)) { + ret = PTR_ERR(wl->debugfs.fw_statistics); + wl->debugfs.fw_statistics = NULL; + goto err_root; + } + + wl->stats.fw_stats = kzalloc(sizeof(*wl->stats.fw_stats), + GFP_KERNEL); + + if (!wl->stats.fw_stats) { + ret = -ENOMEM; + goto err_fw; + } + + wl->stats.fw_stats_update = jiffies; + + ret = wl1251_debugfs_add_files(wl); + + if (ret < 0) + goto err_file; + + return 0; + + err_file: + kfree(wl->stats.fw_stats); + wl->stats.fw_stats = NULL; + + err_fw: + debugfs_remove(wl->debugfs.fw_statistics); + wl->debugfs.fw_statistics = NULL; + + err_root: + debugfs_remove(wl->debugfs.rootdir); + wl->debugfs.rootdir = NULL; + + err: + return ret; + } + + void wl1251_debugfs_exit(struct wl1251 *wl) + { + wl1251_debugfs_delete_files(wl); + + kfree(wl->stats.fw_stats); + wl->stats.fw_stats = NULL; + + debugfs_remove(wl->debugfs.fw_statistics); + wl->debugfs.fw_statistics = NULL; + + debugfs_remove(wl->debugfs.rootdir); + wl->debugfs.rootdir = NULL; + + } diff --cc drivers/net/wireless/ti/wlcore/debugfs.c index 00000000000,0b775e35b5d..d5aea1ff5ad mode 000000,100644..100644 --- a/drivers/net/wireless/ti/wlcore/debugfs.c +++ b/drivers/net/wireless/ti/wlcore/debugfs.c @@@ -1,0 -1,1204 +1,1198 @@@ + /* + * This file is part of wl1271 + * + * Copyright (C) 2009 Nokia Corporation + * + * Contact: Luciano Coelho + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * version 2 as published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA + * 02110-1301 USA + * + */ + + #include "debugfs.h" + + #include + #include + + #include "wlcore.h" + #include "debug.h" + #include "acx.h" + #include "ps.h" + #include "io.h" + #include "tx.h" + + /* ms */ + #define WL1271_DEBUGFS_STATS_LIFETIME 1000 + + /* debugfs macros idea from mac80211 */ + #define DEBUGFS_FORMAT_BUFFER_SIZE 100 + static int wl1271_format_buffer(char __user *userbuf, size_t count, + loff_t *ppos, char *fmt, ...) + { + va_list args; + char buf[DEBUGFS_FORMAT_BUFFER_SIZE]; + int res; + + va_start(args, fmt); + res = vscnprintf(buf, sizeof(buf), fmt, args); + va_end(args); + + return simple_read_from_buffer(userbuf, count, ppos, buf, res); + } + + #define DEBUGFS_READONLY_FILE(name, fmt, value...) \ + static ssize_t name## _read(struct file *file, char __user *userbuf, \ + size_t count, loff_t *ppos) \ + { \ + struct wl1271 *wl = file->private_data; \ + return wl1271_format_buffer(userbuf, count, ppos, \ + fmt "\n", ##value); \ + } \ + \ + static const struct file_operations name## _ops = { \ + .read = name## _read, \ - .open = wl1271_open_file_generic, \ ++ .open = simple_open, \ + .llseek = generic_file_llseek, \ + }; + + #define DEBUGFS_ADD(name, parent) \ + entry = debugfs_create_file(#name, 0400, parent, \ + wl, &name## _ops); \ + if (!entry || IS_ERR(entry)) \ + goto err; \ + + #define DEBUGFS_ADD_PREFIX(prefix, name, parent) \ + do { \ + entry = debugfs_create_file(#name, 0400, parent, \ + wl, &prefix## _## name## _ops); \ + if (!entry || IS_ERR(entry)) \ + goto err; \ + } while (0); + + #define DEBUGFS_FWSTATS_FILE(sub, name, fmt) \ + static ssize_t sub## _ ##name## _read(struct file *file, \ + char __user *userbuf, \ + size_t count, loff_t *ppos) \ + { \ + struct wl1271 *wl = file->private_data; \ + \ + wl1271_debugfs_update_stats(wl); \ + \ + return wl1271_format_buffer(userbuf, count, ppos, fmt "\n", \ + wl->stats.fw_stats->sub.name); \ + } \ + \ + static const struct file_operations sub## _ ##name## _ops = { \ + .read = sub## _ ##name## _read, \ - .open = wl1271_open_file_generic, \ ++ .open = simple_open, \ + .llseek = generic_file_llseek, \ + }; + + #define DEBUGFS_FWSTATS_ADD(sub, name) \ + DEBUGFS_ADD(sub## _ ##name, stats) + + static void wl1271_debugfs_update_stats(struct wl1271 *wl) + { + int ret; + + mutex_lock(&wl->mutex); + + ret = wl1271_ps_elp_wakeup(wl); + if (ret < 0) + goto out; + + if (wl->state == WL1271_STATE_ON && !wl->plt && + time_after(jiffies, wl->stats.fw_stats_update + + msecs_to_jiffies(WL1271_DEBUGFS_STATS_LIFETIME))) { + wl1271_acx_statistics(wl, wl->stats.fw_stats); + wl->stats.fw_stats_update = jiffies; + } + + wl1271_ps_elp_sleep(wl); + + out: + mutex_unlock(&wl->mutex); + } + -static int wl1271_open_file_generic(struct inode *inode, struct file *file) -{ - file->private_data = inode->i_private; - return 0; -} - + DEBUGFS_FWSTATS_FILE(tx, internal_desc_overflow, "%u"); + + DEBUGFS_FWSTATS_FILE(rx, out_of_mem, "%u"); + DEBUGFS_FWSTATS_FILE(rx, hdr_overflow, "%u"); + DEBUGFS_FWSTATS_FILE(rx, hw_stuck, "%u"); + DEBUGFS_FWSTATS_FILE(rx, dropped, "%u"); + DEBUGFS_FWSTATS_FILE(rx, fcs_err, "%u"); + DEBUGFS_FWSTATS_FILE(rx, xfr_hint_trig, "%u"); + DEBUGFS_FWSTATS_FILE(rx, path_reset, "%u"); + DEBUGFS_FWSTATS_FILE(rx, reset_counter, "%u"); + + DEBUGFS_FWSTATS_FILE(dma, rx_requested, "%u"); + DEBUGFS_FWSTATS_FILE(dma, rx_errors, "%u"); + DEBUGFS_FWSTATS_FILE(dma, tx_requested, "%u"); + DEBUGFS_FWSTATS_FILE(dma, tx_errors, "%u"); + + DEBUGFS_FWSTATS_FILE(isr, cmd_cmplt, "%u"); + DEBUGFS_FWSTATS_FILE(isr, fiqs, "%u"); + DEBUGFS_FWSTATS_FILE(isr, rx_headers, "%u"); + DEBUGFS_FWSTATS_FILE(isr, rx_mem_overflow, "%u"); + DEBUGFS_FWSTATS_FILE(isr, rx_rdys, "%u"); + DEBUGFS_FWSTATS_FILE(isr, irqs, "%u"); + DEBUGFS_FWSTATS_FILE(isr, tx_procs, "%u"); + DEBUGFS_FWSTATS_FILE(isr, decrypt_done, "%u"); + DEBUGFS_FWSTATS_FILE(isr, dma0_done, "%u"); + DEBUGFS_FWSTATS_FILE(isr, dma1_done, "%u"); + DEBUGFS_FWSTATS_FILE(isr, tx_exch_complete, "%u"); + DEBUGFS_FWSTATS_FILE(isr, commands, "%u"); + DEBUGFS_FWSTATS_FILE(isr, rx_procs, "%u"); + DEBUGFS_FWSTATS_FILE(isr, hw_pm_mode_changes, "%u"); + DEBUGFS_FWSTATS_FILE(isr, host_acknowledges, "%u"); + DEBUGFS_FWSTATS_FILE(isr, pci_pm, "%u"); + DEBUGFS_FWSTATS_FILE(isr, wakeups, "%u"); + DEBUGFS_FWSTATS_FILE(isr, low_rssi, "%u"); + + DEBUGFS_FWSTATS_FILE(wep, addr_key_count, "%u"); + DEBUGFS_FWSTATS_FILE(wep, default_key_count, "%u"); + /* skipping wep.reserved */ + DEBUGFS_FWSTATS_FILE(wep, key_not_found, "%u"); + DEBUGFS_FWSTATS_FILE(wep, decrypt_fail, "%u"); + DEBUGFS_FWSTATS_FILE(wep, packets, "%u"); + DEBUGFS_FWSTATS_FILE(wep, interrupt, "%u"); + + DEBUGFS_FWSTATS_FILE(pwr, ps_enter, "%u"); + DEBUGFS_FWSTATS_FILE(pwr, elp_enter, "%u"); + DEBUGFS_FWSTATS_FILE(pwr, missing_bcns, "%u"); + DEBUGFS_FWSTATS_FILE(pwr, wake_on_host, "%u"); + DEBUGFS_FWSTATS_FILE(pwr, wake_on_timer_exp, "%u"); + DEBUGFS_FWSTATS_FILE(pwr, tx_with_ps, "%u"); + DEBUGFS_FWSTATS_FILE(pwr, tx_without_ps, "%u"); + DEBUGFS_FWSTATS_FILE(pwr, rcvd_beacons, "%u"); + DEBUGFS_FWSTATS_FILE(pwr, power_save_off, "%u"); + DEBUGFS_FWSTATS_FILE(pwr, enable_ps, "%u"); + DEBUGFS_FWSTATS_FILE(pwr, disable_ps, "%u"); + DEBUGFS_FWSTATS_FILE(pwr, fix_tsf_ps, "%u"); + /* skipping cont_miss_bcns_spread for now */ + DEBUGFS_FWSTATS_FILE(pwr, rcvd_awake_beacons, "%u"); + + DEBUGFS_FWSTATS_FILE(mic, rx_pkts, "%u"); + DEBUGFS_FWSTATS_FILE(mic, calc_failure, "%u"); + + DEBUGFS_FWSTATS_FILE(aes, encrypt_fail, "%u"); + DEBUGFS_FWSTATS_FILE(aes, decrypt_fail, "%u"); + DEBUGFS_FWSTATS_FILE(aes, encrypt_packets, "%u"); + DEBUGFS_FWSTATS_FILE(aes, decrypt_packets, "%u"); + DEBUGFS_FWSTATS_FILE(aes, encrypt_interrupt, "%u"); + DEBUGFS_FWSTATS_FILE(aes, decrypt_interrupt, "%u"); + + DEBUGFS_FWSTATS_FILE(event, heart_beat, "%u"); + DEBUGFS_FWSTATS_FILE(event, calibration, "%u"); + DEBUGFS_FWSTATS_FILE(event, rx_mismatch, "%u"); + DEBUGFS_FWSTATS_FILE(event, rx_mem_empty, "%u"); + DEBUGFS_FWSTATS_FILE(event, rx_pool, "%u"); + DEBUGFS_FWSTATS_FILE(event, oom_late, "%u"); + DEBUGFS_FWSTATS_FILE(event, phy_transmit_error, "%u"); + DEBUGFS_FWSTATS_FILE(event, tx_stuck, "%u"); + + DEBUGFS_FWSTATS_FILE(ps, pspoll_timeouts, "%u"); + DEBUGFS_FWSTATS_FILE(ps, upsd_timeouts, "%u"); + DEBUGFS_FWSTATS_FILE(ps, upsd_max_sptime, "%u"); + DEBUGFS_FWSTATS_FILE(ps, upsd_max_apturn, "%u"); + DEBUGFS_FWSTATS_FILE(ps, pspoll_max_apturn, "%u"); + DEBUGFS_FWSTATS_FILE(ps, pspoll_utilization, "%u"); + DEBUGFS_FWSTATS_FILE(ps, upsd_utilization, "%u"); + + DEBUGFS_FWSTATS_FILE(rxpipe, rx_prep_beacon_drop, "%u"); + DEBUGFS_FWSTATS_FILE(rxpipe, descr_host_int_trig_rx_data, "%u"); + DEBUGFS_FWSTATS_FILE(rxpipe, beacon_buffer_thres_host_int_trig_rx_data, "%u"); + DEBUGFS_FWSTATS_FILE(rxpipe, missed_beacon_host_int_trig_rx_data, "%u"); + DEBUGFS_FWSTATS_FILE(rxpipe, tx_xfr_host_int_trig_rx_data, "%u"); + + DEBUGFS_READONLY_FILE(retry_count, "%u", wl->stats.retry_count); + DEBUGFS_READONLY_FILE(excessive_retries, "%u", + wl->stats.excessive_retries); + + static ssize_t tx_queue_len_read(struct file *file, char __user *userbuf, + size_t count, loff_t *ppos) + { + struct wl1271 *wl = file->private_data; + u32 queue_len; + char buf[20]; + int res; + + queue_len = wl1271_tx_total_queue_count(wl); + + res = scnprintf(buf, sizeof(buf), "%u\n", queue_len); + return simple_read_from_buffer(userbuf, count, ppos, buf, res); + } + + static const struct file_operations tx_queue_len_ops = { + .read = tx_queue_len_read, - .open = wl1271_open_file_generic, ++ .open = simple_open, + .llseek = default_llseek, + }; + + static ssize_t gpio_power_read(struct file *file, char __user *user_buf, + size_t count, loff_t *ppos) + { + struct wl1271 *wl = file->private_data; + bool state = test_bit(WL1271_FLAG_GPIO_POWER, &wl->flags); + + int res; + char buf[10]; + + res = scnprintf(buf, sizeof(buf), "%d\n", state); + + return simple_read_from_buffer(user_buf, count, ppos, buf, res); + } + + static ssize_t gpio_power_write(struct file *file, + const char __user *user_buf, + size_t count, loff_t *ppos) + { + struct wl1271 *wl = file->private_data; + unsigned long value; + int ret; + + ret = kstrtoul_from_user(user_buf, count, 10, &value); + if (ret < 0) { + wl1271_warning("illegal value in gpio_power"); + return -EINVAL; + } + + mutex_lock(&wl->mutex); + + if (value) + wl1271_power_on(wl); + else + wl1271_power_off(wl); + + mutex_unlock(&wl->mutex); + return count; + } + + static const struct file_operations gpio_power_ops = { + .read = gpio_power_read, + .write = gpio_power_write, - .open = wl1271_open_file_generic, ++ .open = simple_open, + .llseek = default_llseek, + }; + + static ssize_t start_recovery_write(struct file *file, + const char __user *user_buf, + size_t count, loff_t *ppos) + { + struct wl1271 *wl = file->private_data; + + mutex_lock(&wl->mutex); + wl12xx_queue_recovery_work(wl); + mutex_unlock(&wl->mutex); + + return count; + } + + static const struct file_operations start_recovery_ops = { + .write = start_recovery_write, - .open = wl1271_open_file_generic, ++ .open = simple_open, + .llseek = default_llseek, + }; + + static ssize_t dynamic_ps_timeout_read(struct file *file, char __user *user_buf, + size_t count, loff_t *ppos) + { + struct wl1271 *wl = file->private_data; + + return wl1271_format_buffer(user_buf, count, + ppos, "%d\n", + wl->conf.conn.dynamic_ps_timeout); + } + + static ssize_t dynamic_ps_timeout_write(struct file *file, + const char __user *user_buf, + size_t count, loff_t *ppos) + { + struct wl1271 *wl = file->private_data; + struct wl12xx_vif *wlvif; + unsigned long value; + int ret; + + ret = kstrtoul_from_user(user_buf, count, 10, &value); + if (ret < 0) { + wl1271_warning("illegal value in dynamic_ps"); + return -EINVAL; + } + + if (value < 1 || value > 65535) { + wl1271_warning("dyanmic_ps_timeout is not in valid range"); + return -ERANGE; + } + + mutex_lock(&wl->mutex); + + wl->conf.conn.dynamic_ps_timeout = value; + + if (wl->state == WL1271_STATE_OFF) + goto out; + + ret = wl1271_ps_elp_wakeup(wl); + if (ret < 0) + goto out; + + /* In case we're already in PSM, trigger it again to set new timeout + * immediately without waiting for re-association + */ + + wl12xx_for_each_wlvif_sta(wl, wlvif) { + if (test_bit(WLVIF_FLAG_IN_PS, &wlvif->flags)) + wl1271_ps_set_mode(wl, wlvif, STATION_AUTO_PS_MODE); + } + + wl1271_ps_elp_sleep(wl); + + out: + mutex_unlock(&wl->mutex); + return count; + } + + static const struct file_operations dynamic_ps_timeout_ops = { + .read = dynamic_ps_timeout_read, + .write = dynamic_ps_timeout_write, - .open = wl1271_open_file_generic, ++ .open = simple_open, + .llseek = default_llseek, + }; + + static ssize_t forced_ps_read(struct file *file, char __user *user_buf, + size_t count, loff_t *ppos) + { + struct wl1271 *wl = file->private_data; + + return wl1271_format_buffer(user_buf, count, + ppos, "%d\n", + wl->conf.conn.forced_ps); + } + + static ssize_t forced_ps_write(struct file *file, + const char __user *user_buf, + size_t count, loff_t *ppos) + { + struct wl1271 *wl = file->private_data; + struct wl12xx_vif *wlvif; + unsigned long value; + int ret, ps_mode; + + ret = kstrtoul_from_user(user_buf, count, 10, &value); + if (ret < 0) { + wl1271_warning("illegal value in forced_ps"); + return -EINVAL; + } + + if (value != 1 && value != 0) { + wl1271_warning("forced_ps should be either 0 or 1"); + return -ERANGE; + } + + mutex_lock(&wl->mutex); + + if (wl->conf.conn.forced_ps == value) + goto out; + + wl->conf.conn.forced_ps = value; + + if (wl->state == WL1271_STATE_OFF) + goto out; + + ret = wl1271_ps_elp_wakeup(wl); + if (ret < 0) + goto out; + + /* In case we're already in PSM, trigger it again to switch mode + * immediately without waiting for re-association + */ + + ps_mode = value ? STATION_POWER_SAVE_MODE : STATION_AUTO_PS_MODE; + + wl12xx_for_each_wlvif_sta(wl, wlvif) { + if (test_bit(WLVIF_FLAG_IN_PS, &wlvif->flags)) + wl1271_ps_set_mode(wl, wlvif, ps_mode); + } + + wl1271_ps_elp_sleep(wl); + + out: + mutex_unlock(&wl->mutex); + return count; + } + + static const struct file_operations forced_ps_ops = { + .read = forced_ps_read, + .write = forced_ps_write, - .open = wl1271_open_file_generic, ++ .open = simple_open, + .llseek = default_llseek, + }; + + static ssize_t split_scan_timeout_read(struct file *file, char __user *user_buf, + size_t count, loff_t *ppos) + { + struct wl1271 *wl = file->private_data; + + return wl1271_format_buffer(user_buf, count, + ppos, "%d\n", + wl->conf.scan.split_scan_timeout / 1000); + } + + static ssize_t split_scan_timeout_write(struct file *file, + const char __user *user_buf, + size_t count, loff_t *ppos) + { + struct wl1271 *wl = file->private_data; + unsigned long value; + int ret; + + ret = kstrtoul_from_user(user_buf, count, 10, &value); + if (ret < 0) { + wl1271_warning("illegal value in split_scan_timeout"); + return -EINVAL; + } + + if (value == 0) + wl1271_info("split scan will be disabled"); + + mutex_lock(&wl->mutex); + + wl->conf.scan.split_scan_timeout = value * 1000; + + mutex_unlock(&wl->mutex); + return count; + } + + static const struct file_operations split_scan_timeout_ops = { + .read = split_scan_timeout_read, + .write = split_scan_timeout_write, - .open = wl1271_open_file_generic, ++ .open = simple_open, + .llseek = default_llseek, + }; + + static ssize_t driver_state_read(struct file *file, char __user *user_buf, + size_t count, loff_t *ppos) + { + struct wl1271 *wl = file->private_data; + int res = 0; + ssize_t ret; + char *buf; + + #define DRIVER_STATE_BUF_LEN 1024 + + buf = kmalloc(DRIVER_STATE_BUF_LEN, GFP_KERNEL); + if (!buf) + return -ENOMEM; + + mutex_lock(&wl->mutex); + + #define DRIVER_STATE_PRINT(x, fmt) \ + (res += scnprintf(buf + res, DRIVER_STATE_BUF_LEN - res,\ + #x " = " fmt "\n", wl->x)) + + #define DRIVER_STATE_PRINT_LONG(x) DRIVER_STATE_PRINT(x, "%ld") + #define DRIVER_STATE_PRINT_INT(x) DRIVER_STATE_PRINT(x, "%d") + #define DRIVER_STATE_PRINT_STR(x) DRIVER_STATE_PRINT(x, "%s") + #define DRIVER_STATE_PRINT_LHEX(x) DRIVER_STATE_PRINT(x, "0x%lx") + #define DRIVER_STATE_PRINT_HEX(x) DRIVER_STATE_PRINT(x, "0x%x") + + DRIVER_STATE_PRINT_INT(tx_blocks_available); + DRIVER_STATE_PRINT_INT(tx_allocated_blocks); + DRIVER_STATE_PRINT_INT(tx_allocated_pkts[0]); + DRIVER_STATE_PRINT_INT(tx_allocated_pkts[1]); + DRIVER_STATE_PRINT_INT(tx_allocated_pkts[2]); + DRIVER_STATE_PRINT_INT(tx_allocated_pkts[3]); + DRIVER_STATE_PRINT_INT(tx_frames_cnt); + DRIVER_STATE_PRINT_LHEX(tx_frames_map[0]); + DRIVER_STATE_PRINT_INT(tx_queue_count[0]); + DRIVER_STATE_PRINT_INT(tx_queue_count[1]); + DRIVER_STATE_PRINT_INT(tx_queue_count[2]); + DRIVER_STATE_PRINT_INT(tx_queue_count[3]); + DRIVER_STATE_PRINT_INT(tx_packets_count); + DRIVER_STATE_PRINT_INT(tx_results_count); + DRIVER_STATE_PRINT_LHEX(flags); + DRIVER_STATE_PRINT_INT(tx_blocks_freed); + DRIVER_STATE_PRINT_INT(rx_counter); + DRIVER_STATE_PRINT_INT(state); + DRIVER_STATE_PRINT_INT(channel); + DRIVER_STATE_PRINT_INT(band); + DRIVER_STATE_PRINT_INT(power_level); + DRIVER_STATE_PRINT_INT(sg_enabled); + DRIVER_STATE_PRINT_INT(enable_11a); + DRIVER_STATE_PRINT_INT(noise); + DRIVER_STATE_PRINT_HEX(ap_fw_ps_map); + DRIVER_STATE_PRINT_LHEX(ap_ps_map); + DRIVER_STATE_PRINT_HEX(quirks); + DRIVER_STATE_PRINT_HEX(irq); + DRIVER_STATE_PRINT_HEX(ref_clock); + DRIVER_STATE_PRINT_HEX(tcxo_clock); + DRIVER_STATE_PRINT_HEX(hw_pg_ver); + DRIVER_STATE_PRINT_HEX(platform_quirks); + DRIVER_STATE_PRINT_HEX(chip.id); + DRIVER_STATE_PRINT_STR(chip.fw_ver_str); + DRIVER_STATE_PRINT_INT(sched_scanning); + + #undef DRIVER_STATE_PRINT_INT + #undef DRIVER_STATE_PRINT_LONG + #undef DRIVER_STATE_PRINT_HEX + #undef DRIVER_STATE_PRINT_LHEX + #undef DRIVER_STATE_PRINT_STR + #undef DRIVER_STATE_PRINT + #undef DRIVER_STATE_BUF_LEN + + mutex_unlock(&wl->mutex); + + ret = simple_read_from_buffer(user_buf, count, ppos, buf, res); + kfree(buf); + return ret; + } + + static const struct file_operations driver_state_ops = { + .read = driver_state_read, - .open = wl1271_open_file_generic, ++ .open = simple_open, + .llseek = default_llseek, + }; + + static ssize_t vifs_state_read(struct file *file, char __user *user_buf, + size_t count, loff_t *ppos) + { + struct wl1271 *wl = file->private_data; + struct wl12xx_vif *wlvif; + int ret, res = 0; + const int buf_size = 4096; + char *buf; + char tmp_buf[64]; + + buf = kzalloc(buf_size, GFP_KERNEL); + if (!buf) + return -ENOMEM; + + mutex_lock(&wl->mutex); + + #define VIF_STATE_PRINT(x, fmt) \ + (res += scnprintf(buf + res, buf_size - res, \ + #x " = " fmt "\n", wlvif->x)) + + #define VIF_STATE_PRINT_LONG(x) VIF_STATE_PRINT(x, "%ld") + #define VIF_STATE_PRINT_INT(x) VIF_STATE_PRINT(x, "%d") + #define VIF_STATE_PRINT_STR(x) VIF_STATE_PRINT(x, "%s") + #define VIF_STATE_PRINT_LHEX(x) VIF_STATE_PRINT(x, "0x%lx") + #define VIF_STATE_PRINT_LLHEX(x) VIF_STATE_PRINT(x, "0x%llx") + #define VIF_STATE_PRINT_HEX(x) VIF_STATE_PRINT(x, "0x%x") + + #define VIF_STATE_PRINT_NSTR(x, len) \ + do { \ + memset(tmp_buf, 0, sizeof(tmp_buf)); \ + memcpy(tmp_buf, wlvif->x, \ + min_t(u8, len, sizeof(tmp_buf) - 1)); \ + res += scnprintf(buf + res, buf_size - res, \ + #x " = %s\n", tmp_buf); \ + } while (0) + + wl12xx_for_each_wlvif(wl, wlvif) { + VIF_STATE_PRINT_INT(role_id); + VIF_STATE_PRINT_INT(bss_type); + VIF_STATE_PRINT_LHEX(flags); + VIF_STATE_PRINT_INT(p2p); + VIF_STATE_PRINT_INT(dev_role_id); + VIF_STATE_PRINT_INT(dev_hlid); + + if (wlvif->bss_type == BSS_TYPE_STA_BSS || + wlvif->bss_type == BSS_TYPE_IBSS) { + VIF_STATE_PRINT_INT(sta.hlid); + VIF_STATE_PRINT_INT(sta.ba_rx_bitmap); + VIF_STATE_PRINT_INT(sta.basic_rate_idx); + VIF_STATE_PRINT_INT(sta.ap_rate_idx); + VIF_STATE_PRINT_INT(sta.p2p_rate_idx); + VIF_STATE_PRINT_INT(sta.qos); + } else { + VIF_STATE_PRINT_INT(ap.global_hlid); + VIF_STATE_PRINT_INT(ap.bcast_hlid); + VIF_STATE_PRINT_LHEX(ap.sta_hlid_map[0]); + VIF_STATE_PRINT_INT(ap.mgmt_rate_idx); + VIF_STATE_PRINT_INT(ap.bcast_rate_idx); + VIF_STATE_PRINT_INT(ap.ucast_rate_idx[0]); + VIF_STATE_PRINT_INT(ap.ucast_rate_idx[1]); + VIF_STATE_PRINT_INT(ap.ucast_rate_idx[2]); + VIF_STATE_PRINT_INT(ap.ucast_rate_idx[3]); + } + VIF_STATE_PRINT_INT(last_tx_hlid); + VIF_STATE_PRINT_LHEX(links_map[0]); + VIF_STATE_PRINT_NSTR(ssid, wlvif->ssid_len); + VIF_STATE_PRINT_INT(band); + VIF_STATE_PRINT_INT(channel); + VIF_STATE_PRINT_HEX(bitrate_masks[0]); + VIF_STATE_PRINT_HEX(bitrate_masks[1]); + VIF_STATE_PRINT_HEX(basic_rate_set); + VIF_STATE_PRINT_HEX(basic_rate); + VIF_STATE_PRINT_HEX(rate_set); + VIF_STATE_PRINT_INT(beacon_int); + VIF_STATE_PRINT_INT(default_key); + VIF_STATE_PRINT_INT(aid); + VIF_STATE_PRINT_INT(session_counter); + VIF_STATE_PRINT_INT(psm_entry_retry); + VIF_STATE_PRINT_INT(power_level); + VIF_STATE_PRINT_INT(rssi_thold); + VIF_STATE_PRINT_INT(last_rssi_event); + VIF_STATE_PRINT_INT(ba_support); + VIF_STATE_PRINT_INT(ba_allowed); + VIF_STATE_PRINT_INT(is_gem); + VIF_STATE_PRINT_LLHEX(tx_security_seq); + VIF_STATE_PRINT_INT(tx_security_last_seq_lsb); + } + + #undef VIF_STATE_PRINT_INT + #undef VIF_STATE_PRINT_LONG + #undef VIF_STATE_PRINT_HEX + #undef VIF_STATE_PRINT_LHEX + #undef VIF_STATE_PRINT_LLHEX + #undef VIF_STATE_PRINT_STR + #undef VIF_STATE_PRINT_NSTR + #undef VIF_STATE_PRINT + + mutex_unlock(&wl->mutex); + + ret = simple_read_from_buffer(user_buf, count, ppos, buf, res); + kfree(buf); + return ret; + } + + static const struct file_operations vifs_state_ops = { + .read = vifs_state_read, - .open = wl1271_open_file_generic, ++ .open = simple_open, + .llseek = default_llseek, + }; + + static ssize_t dtim_interval_read(struct file *file, char __user *user_buf, + size_t count, loff_t *ppos) + { + struct wl1271 *wl = file->private_data; + u8 value; + + if (wl->conf.conn.wake_up_event == CONF_WAKE_UP_EVENT_DTIM || + wl->conf.conn.wake_up_event == CONF_WAKE_UP_EVENT_N_DTIM) + value = wl->conf.conn.listen_interval; + else + value = 0; + + return wl1271_format_buffer(user_buf, count, ppos, "%d\n", value); + } + + static ssize_t dtim_interval_write(struct file *file, + const char __user *user_buf, + size_t count, loff_t *ppos) + { + struct wl1271 *wl = file->private_data; + unsigned long value; + int ret; + + ret = kstrtoul_from_user(user_buf, count, 10, &value); + if (ret < 0) { + wl1271_warning("illegal value for dtim_interval"); + return -EINVAL; + } + + if (value < 1 || value > 10) { + wl1271_warning("dtim value is not in valid range"); + return -ERANGE; + } + + mutex_lock(&wl->mutex); + + wl->conf.conn.listen_interval = value; + /* for some reason there are different event types for 1 and >1 */ + if (value == 1) + wl->conf.conn.wake_up_event = CONF_WAKE_UP_EVENT_DTIM; + else + wl->conf.conn.wake_up_event = CONF_WAKE_UP_EVENT_N_DTIM; + + /* + * we don't reconfigure ACX_WAKE_UP_CONDITIONS now, so it will only + * take effect on the next time we enter psm. + */ + mutex_unlock(&wl->mutex); + return count; + } + + static const struct file_operations dtim_interval_ops = { + .read = dtim_interval_read, + .write = dtim_interval_write, - .open = wl1271_open_file_generic, ++ .open = simple_open, + .llseek = default_llseek, + }; + + + + static ssize_t suspend_dtim_interval_read(struct file *file, + char __user *user_buf, + size_t count, loff_t *ppos) + { + struct wl1271 *wl = file->private_data; + u8 value; + + if (wl->conf.conn.suspend_wake_up_event == CONF_WAKE_UP_EVENT_DTIM || + wl->conf.conn.suspend_wake_up_event == CONF_WAKE_UP_EVENT_N_DTIM) + value = wl->conf.conn.suspend_listen_interval; + else + value = 0; + + return wl1271_format_buffer(user_buf, count, ppos, "%d\n", value); + } + + static ssize_t suspend_dtim_interval_write(struct file *file, + const char __user *user_buf, + size_t count, loff_t *ppos) + { + struct wl1271 *wl = file->private_data; + unsigned long value; + int ret; + + ret = kstrtoul_from_user(user_buf, count, 10, &value); + if (ret < 0) { + wl1271_warning("illegal value for suspend_dtim_interval"); + return -EINVAL; + } + + if (value < 1 || value > 10) { + wl1271_warning("suspend_dtim value is not in valid range"); + return -ERANGE; + } + + mutex_lock(&wl->mutex); + + wl->conf.conn.suspend_listen_interval = value; + /* for some reason there are different event types for 1 and >1 */ + if (value == 1) + wl->conf.conn.suspend_wake_up_event = CONF_WAKE_UP_EVENT_DTIM; + else + wl->conf.conn.suspend_wake_up_event = CONF_WAKE_UP_EVENT_N_DTIM; + + mutex_unlock(&wl->mutex); + return count; + } + + + static const struct file_operations suspend_dtim_interval_ops = { + .read = suspend_dtim_interval_read, + .write = suspend_dtim_interval_write, - .open = wl1271_open_file_generic, ++ .open = simple_open, + .llseek = default_llseek, + }; + + static ssize_t beacon_interval_read(struct file *file, char __user *user_buf, + size_t count, loff_t *ppos) + { + struct wl1271 *wl = file->private_data; + u8 value; + + if (wl->conf.conn.wake_up_event == CONF_WAKE_UP_EVENT_BEACON || + wl->conf.conn.wake_up_event == CONF_WAKE_UP_EVENT_N_BEACONS) + value = wl->conf.conn.listen_interval; + else + value = 0; + + return wl1271_format_buffer(user_buf, count, ppos, "%d\n", value); + } + + static ssize_t beacon_interval_write(struct file *file, + const char __user *user_buf, + size_t count, loff_t *ppos) + { + struct wl1271 *wl = file->private_data; + unsigned long value; + int ret; + + ret = kstrtoul_from_user(user_buf, count, 10, &value); + if (ret < 0) { + wl1271_warning("illegal value for beacon_interval"); + return -EINVAL; + } + + if (value < 1 || value > 255) { + wl1271_warning("beacon interval value is not in valid range"); + return -ERANGE; + } + + mutex_lock(&wl->mutex); + + wl->conf.conn.listen_interval = value; + /* for some reason there are different event types for 1 and >1 */ + if (value == 1) + wl->conf.conn.wake_up_event = CONF_WAKE_UP_EVENT_BEACON; + else + wl->conf.conn.wake_up_event = CONF_WAKE_UP_EVENT_N_BEACONS; + + /* + * we don't reconfigure ACX_WAKE_UP_CONDITIONS now, so it will only + * take effect on the next time we enter psm. + */ + mutex_unlock(&wl->mutex); + return count; + } + + static const struct file_operations beacon_interval_ops = { + .read = beacon_interval_read, + .write = beacon_interval_write, - .open = wl1271_open_file_generic, ++ .open = simple_open, + .llseek = default_llseek, + }; + + static ssize_t rx_streaming_interval_write(struct file *file, + const char __user *user_buf, + size_t count, loff_t *ppos) + { + struct wl1271 *wl = file->private_data; + struct wl12xx_vif *wlvif; + unsigned long value; + int ret; + + ret = kstrtoul_from_user(user_buf, count, 10, &value); + if (ret < 0) { + wl1271_warning("illegal value in rx_streaming_interval!"); + return -EINVAL; + } + + /* valid values: 0, 10-100 */ + if (value && (value < 10 || value > 100)) { + wl1271_warning("value is not in range!"); + return -ERANGE; + } + + mutex_lock(&wl->mutex); + + wl->conf.rx_streaming.interval = value; + + ret = wl1271_ps_elp_wakeup(wl); + if (ret < 0) + goto out; + + wl12xx_for_each_wlvif_sta(wl, wlvif) { + wl1271_recalc_rx_streaming(wl, wlvif); + } + + wl1271_ps_elp_sleep(wl); + out: + mutex_unlock(&wl->mutex); + return count; + } + + static ssize_t rx_streaming_interval_read(struct file *file, + char __user *userbuf, + size_t count, loff_t *ppos) + { + struct wl1271 *wl = file->private_data; + return wl1271_format_buffer(userbuf, count, ppos, + "%d\n", wl->conf.rx_streaming.interval); + } + + static const struct file_operations rx_streaming_interval_ops = { + .read = rx_streaming_interval_read, + .write = rx_streaming_interval_write, - .open = wl1271_open_file_generic, ++ .open = simple_open, + .llseek = default_llseek, + }; + + static ssize_t rx_streaming_always_write(struct file *file, + const char __user *user_buf, + size_t count, loff_t *ppos) + { + struct wl1271 *wl = file->private_data; + struct wl12xx_vif *wlvif; + unsigned long value; + int ret; + + ret = kstrtoul_from_user(user_buf, count, 10, &value); + if (ret < 0) { + wl1271_warning("illegal value in rx_streaming_write!"); + return -EINVAL; + } + + /* valid values: 0, 10-100 */ + if (!(value == 0 || value == 1)) { + wl1271_warning("value is not in valid!"); + return -EINVAL; + } + + mutex_lock(&wl->mutex); + + wl->conf.rx_streaming.always = value; + + ret = wl1271_ps_elp_wakeup(wl); + if (ret < 0) + goto out; + + wl12xx_for_each_wlvif_sta(wl, wlvif) { + wl1271_recalc_rx_streaming(wl, wlvif); + } + + wl1271_ps_elp_sleep(wl); + out: + mutex_unlock(&wl->mutex); + return count; + } + + static ssize_t rx_streaming_always_read(struct file *file, + char __user *userbuf, + size_t count, loff_t *ppos) + { + struct wl1271 *wl = file->private_data; + return wl1271_format_buffer(userbuf, count, ppos, + "%d\n", wl->conf.rx_streaming.always); + } + + static const struct file_operations rx_streaming_always_ops = { + .read = rx_streaming_always_read, + .write = rx_streaming_always_write, - .open = wl1271_open_file_generic, ++ .open = simple_open, + .llseek = default_llseek, + }; + + static ssize_t beacon_filtering_write(struct file *file, + const char __user *user_buf, + size_t count, loff_t *ppos) + { + struct wl1271 *wl = file->private_data; + struct wl12xx_vif *wlvif; + char buf[10]; + size_t len; + unsigned long value; + int ret; + + len = min(count, sizeof(buf) - 1); + if (copy_from_user(buf, user_buf, len)) + return -EFAULT; + buf[len] = '\0'; + + ret = kstrtoul(buf, 0, &value); + if (ret < 0) { + wl1271_warning("illegal value for beacon_filtering!"); + return -EINVAL; + } + + mutex_lock(&wl->mutex); + + ret = wl1271_ps_elp_wakeup(wl); + if (ret < 0) + goto out; + + wl12xx_for_each_wlvif(wl, wlvif) { + ret = wl1271_acx_beacon_filter_opt(wl, wlvif, !!value); + } + + wl1271_ps_elp_sleep(wl); + out: + mutex_unlock(&wl->mutex); + return count; + } + + static const struct file_operations beacon_filtering_ops = { + .write = beacon_filtering_write, - .open = wl1271_open_file_generic, ++ .open = simple_open, + .llseek = default_llseek, + }; + + static int wl1271_debugfs_add_files(struct wl1271 *wl, + struct dentry *rootdir) + { + int ret = 0; + struct dentry *entry, *stats, *streaming; + + stats = debugfs_create_dir("fw-statistics", rootdir); + if (!stats || IS_ERR(stats)) { + entry = stats; + goto err; + } + + DEBUGFS_FWSTATS_ADD(tx, internal_desc_overflow); + + DEBUGFS_FWSTATS_ADD(rx, out_of_mem); + DEBUGFS_FWSTATS_ADD(rx, hdr_overflow); + DEBUGFS_FWSTATS_ADD(rx, hw_stuck); + DEBUGFS_FWSTATS_ADD(rx, dropped); + DEBUGFS_FWSTATS_ADD(rx, fcs_err); + DEBUGFS_FWSTATS_ADD(rx, xfr_hint_trig); + DEBUGFS_FWSTATS_ADD(rx, path_reset); + DEBUGFS_FWSTATS_ADD(rx, reset_counter); + + DEBUGFS_FWSTATS_ADD(dma, rx_requested); + DEBUGFS_FWSTATS_ADD(dma, rx_errors); + DEBUGFS_FWSTATS_ADD(dma, tx_requested); + DEBUGFS_FWSTATS_ADD(dma, tx_errors); + + DEBUGFS_FWSTATS_ADD(isr, cmd_cmplt); + DEBUGFS_FWSTATS_ADD(isr, fiqs); + DEBUGFS_FWSTATS_ADD(isr, rx_headers); + DEBUGFS_FWSTATS_ADD(isr, rx_mem_overflow); + DEBUGFS_FWSTATS_ADD(isr, rx_rdys); + DEBUGFS_FWSTATS_ADD(isr, irqs); + DEBUGFS_FWSTATS_ADD(isr, tx_procs); + DEBUGFS_FWSTATS_ADD(isr, decrypt_done); + DEBUGFS_FWSTATS_ADD(isr, dma0_done); + DEBUGFS_FWSTATS_ADD(isr, dma1_done); + DEBUGFS_FWSTATS_ADD(isr, tx_exch_complete); + DEBUGFS_FWSTATS_ADD(isr, commands); + DEBUGFS_FWSTATS_ADD(isr, rx_procs); + DEBUGFS_FWSTATS_ADD(isr, hw_pm_mode_changes); + DEBUGFS_FWSTATS_ADD(isr, host_acknowledges); + DEBUGFS_FWSTATS_ADD(isr, pci_pm); + DEBUGFS_FWSTATS_ADD(isr, wakeups); + DEBUGFS_FWSTATS_ADD(isr, low_rssi); + + DEBUGFS_FWSTATS_ADD(wep, addr_key_count); + DEBUGFS_FWSTATS_ADD(wep, default_key_count); + /* skipping wep.reserved */ + DEBUGFS_FWSTATS_ADD(wep, key_not_found); + DEBUGFS_FWSTATS_ADD(wep, decrypt_fail); + DEBUGFS_FWSTATS_ADD(wep, packets); + DEBUGFS_FWSTATS_ADD(wep, interrupt); + + DEBUGFS_FWSTATS_ADD(pwr, ps_enter); + DEBUGFS_FWSTATS_ADD(pwr, elp_enter); + DEBUGFS_FWSTATS_ADD(pwr, missing_bcns); + DEBUGFS_FWSTATS_ADD(pwr, wake_on_host); + DEBUGFS_FWSTATS_ADD(pwr, wake_on_timer_exp); + DEBUGFS_FWSTATS_ADD(pwr, tx_with_ps); + DEBUGFS_FWSTATS_ADD(pwr, tx_without_ps); + DEBUGFS_FWSTATS_ADD(pwr, rcvd_beacons); + DEBUGFS_FWSTATS_ADD(pwr, power_save_off); + DEBUGFS_FWSTATS_ADD(pwr, enable_ps); + DEBUGFS_FWSTATS_ADD(pwr, disable_ps); + DEBUGFS_FWSTATS_ADD(pwr, fix_tsf_ps); + /* skipping cont_miss_bcns_spread for now */ + DEBUGFS_FWSTATS_ADD(pwr, rcvd_awake_beacons); + + DEBUGFS_FWSTATS_ADD(mic, rx_pkts); + DEBUGFS_FWSTATS_ADD(mic, calc_failure); + + DEBUGFS_FWSTATS_ADD(aes, encrypt_fail); + DEBUGFS_FWSTATS_ADD(aes, decrypt_fail); + DEBUGFS_FWSTATS_ADD(aes, encrypt_packets); + DEBUGFS_FWSTATS_ADD(aes, decrypt_packets); + DEBUGFS_FWSTATS_ADD(aes, encrypt_interrupt); + DEBUGFS_FWSTATS_ADD(aes, decrypt_interrupt); + + DEBUGFS_FWSTATS_ADD(event, heart_beat); + DEBUGFS_FWSTATS_ADD(event, calibration); + DEBUGFS_FWSTATS_ADD(event, rx_mismatch); + DEBUGFS_FWSTATS_ADD(event, rx_mem_empty); + DEBUGFS_FWSTATS_ADD(event, rx_pool); + DEBUGFS_FWSTATS_ADD(event, oom_late); + DEBUGFS_FWSTATS_ADD(event, phy_transmit_error); + DEBUGFS_FWSTATS_ADD(event, tx_stuck); + + DEBUGFS_FWSTATS_ADD(ps, pspoll_timeouts); + DEBUGFS_FWSTATS_ADD(ps, upsd_timeouts); + DEBUGFS_FWSTATS_ADD(ps, upsd_max_sptime); + DEBUGFS_FWSTATS_ADD(ps, upsd_max_apturn); + DEBUGFS_FWSTATS_ADD(ps, pspoll_max_apturn); + DEBUGFS_FWSTATS_ADD(ps, pspoll_utilization); + DEBUGFS_FWSTATS_ADD(ps, upsd_utilization); + + DEBUGFS_FWSTATS_ADD(rxpipe, rx_prep_beacon_drop); + DEBUGFS_FWSTATS_ADD(rxpipe, descr_host_int_trig_rx_data); + DEBUGFS_FWSTATS_ADD(rxpipe, beacon_buffer_thres_host_int_trig_rx_data); + DEBUGFS_FWSTATS_ADD(rxpipe, missed_beacon_host_int_trig_rx_data); + DEBUGFS_FWSTATS_ADD(rxpipe, tx_xfr_host_int_trig_rx_data); + + DEBUGFS_ADD(tx_queue_len, rootdir); + DEBUGFS_ADD(retry_count, rootdir); + DEBUGFS_ADD(excessive_retries, rootdir); + + DEBUGFS_ADD(gpio_power, rootdir); + DEBUGFS_ADD(start_recovery, rootdir); + DEBUGFS_ADD(driver_state, rootdir); + DEBUGFS_ADD(vifs_state, rootdir); + DEBUGFS_ADD(dtim_interval, rootdir); + DEBUGFS_ADD(suspend_dtim_interval, rootdir); + DEBUGFS_ADD(beacon_interval, rootdir); + DEBUGFS_ADD(beacon_filtering, rootdir); + DEBUGFS_ADD(dynamic_ps_timeout, rootdir); + DEBUGFS_ADD(forced_ps, rootdir); + DEBUGFS_ADD(split_scan_timeout, rootdir); + + streaming = debugfs_create_dir("rx_streaming", rootdir); + if (!streaming || IS_ERR(streaming)) + goto err; + + DEBUGFS_ADD_PREFIX(rx_streaming, interval, streaming); + DEBUGFS_ADD_PREFIX(rx_streaming, always, streaming); + + + return 0; + + err: + if (IS_ERR(entry)) + ret = PTR_ERR(entry); + else + ret = -ENOMEM; + + return ret; + } + + void wl1271_debugfs_reset(struct wl1271 *wl) + { + if (!wl->stats.fw_stats) + return; + + memset(wl->stats.fw_stats, 0, sizeof(*wl->stats.fw_stats)); + wl->stats.retry_count = 0; + wl->stats.excessive_retries = 0; + } + + int wl1271_debugfs_init(struct wl1271 *wl) + { + int ret; + struct dentry *rootdir; + + rootdir = debugfs_create_dir(KBUILD_MODNAME, + wl->hw->wiphy->debugfsdir); + + if (IS_ERR(rootdir)) { + ret = PTR_ERR(rootdir); + goto err; + } + + wl->stats.fw_stats = kzalloc(sizeof(*wl->stats.fw_stats), + GFP_KERNEL); + + if (!wl->stats.fw_stats) { + ret = -ENOMEM; + goto err_fw; + } + + wl->stats.fw_stats_update = jiffies; + + ret = wl1271_debugfs_add_files(wl, rootdir); + + if (ret < 0) + goto err_file; + + return 0; + + err_file: + kfree(wl->stats.fw_stats); + wl->stats.fw_stats = NULL; + + err_fw: + debugfs_remove_recursive(rootdir); + + err: + return ret; + } + + void wl1271_debugfs_exit(struct wl1271 *wl) + { + kfree(wl->stats.fw_stats); + wl->stats.fw_stats = NULL; + }