470 lines
14 KiB
C
470 lines
14 KiB
C
/*
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* This file is part of wl1271
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*
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* Copyright (C) 2009 Nokia Corporation
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*
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* Contact: Luciano Coelho <luciano.coelho@nokia.com>
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*
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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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*
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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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*
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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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* 02110-1301 USA
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*
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*/
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#include "debugfs.h"
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#include <linux/skbuff.h>
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#include <linux/slab.h>
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#include "wl12xx.h"
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#include "acx.h"
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#include "ps.h"
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#include "io.h"
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/* ms */
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#define WL1271_DEBUGFS_STATS_LIFETIME 1000
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/* debugfs macros idea from mac80211 */
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#define DEBUGFS_FORMAT_BUFFER_SIZE 100
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static int wl1271_format_buffer(char __user *userbuf, size_t count,
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loff_t *ppos, char *fmt, ...)
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{
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va_list args;
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char buf[DEBUGFS_FORMAT_BUFFER_SIZE];
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int res;
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va_start(args, fmt);
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res = vscnprintf(buf, sizeof(buf), fmt, args);
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va_end(args);
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return simple_read_from_buffer(userbuf, count, ppos, buf, res);
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}
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#define DEBUGFS_READONLY_FILE(name, 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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{ \
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struct wl1271 *wl = file->private_data; \
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return wl1271_format_buffer(userbuf, count, ppos, \
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fmt "\n", ##value); \
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} \
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\
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static const struct file_operations name## _ops = { \
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.read = name## _read, \
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.open = wl1271_open_file_generic, \
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.llseek = generic_file_llseek, \
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};
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#define DEBUGFS_ADD(name, parent) \
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entry = debugfs_create_file(#name, 0400, parent, \
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wl, &name## _ops); \
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if (!entry || IS_ERR(entry)) \
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goto err; \
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#define DEBUGFS_FWSTATS_FILE(sub, name, 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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{ \
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struct wl1271 *wl = file->private_data; \
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\
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wl1271_debugfs_update_stats(wl); \
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\
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return wl1271_format_buffer(userbuf, count, ppos, fmt "\n", \
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wl->stats.fw_stats->sub.name); \
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} \
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\
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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 = wl1271_open_file_generic, \
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.llseek = generic_file_llseek, \
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};
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#define DEBUGFS_FWSTATS_ADD(sub, name) \
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DEBUGFS_ADD(sub## _ ##name, stats)
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static void wl1271_debugfs_update_stats(struct wl1271 *wl)
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{
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int ret;
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mutex_lock(&wl->mutex);
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ret = wl1271_ps_elp_wakeup(wl);
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if (ret < 0)
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goto out;
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if (wl->state == WL1271_STATE_ON &&
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time_after(jiffies, wl->stats.fw_stats_update +
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msecs_to_jiffies(WL1271_DEBUGFS_STATS_LIFETIME))) {
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wl1271_acx_statistics(wl, wl->stats.fw_stats);
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wl->stats.fw_stats_update = jiffies;
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}
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wl1271_ps_elp_sleep(wl);
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out:
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mutex_unlock(&wl->mutex);
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}
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static int wl1271_open_file_generic(struct inode *inode, struct file *file)
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{
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file->private_data = inode->i_private;
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return 0;
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}
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DEBUGFS_FWSTATS_FILE(tx, internal_desc_overflow, "%u");
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DEBUGFS_FWSTATS_FILE(rx, out_of_mem, "%u");
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DEBUGFS_FWSTATS_FILE(rx, hdr_overflow, "%u");
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DEBUGFS_FWSTATS_FILE(rx, hw_stuck, "%u");
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DEBUGFS_FWSTATS_FILE(rx, dropped, "%u");
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DEBUGFS_FWSTATS_FILE(rx, fcs_err, "%u");
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DEBUGFS_FWSTATS_FILE(rx, xfr_hint_trig, "%u");
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DEBUGFS_FWSTATS_FILE(rx, path_reset, "%u");
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DEBUGFS_FWSTATS_FILE(rx, reset_counter, "%u");
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DEBUGFS_FWSTATS_FILE(dma, rx_requested, "%u");
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DEBUGFS_FWSTATS_FILE(dma, rx_errors, "%u");
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DEBUGFS_FWSTATS_FILE(dma, tx_requested, "%u");
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DEBUGFS_FWSTATS_FILE(dma, tx_errors, "%u");
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DEBUGFS_FWSTATS_FILE(isr, cmd_cmplt, "%u");
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DEBUGFS_FWSTATS_FILE(isr, fiqs, "%u");
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DEBUGFS_FWSTATS_FILE(isr, rx_headers, "%u");
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DEBUGFS_FWSTATS_FILE(isr, rx_mem_overflow, "%u");
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DEBUGFS_FWSTATS_FILE(isr, rx_rdys, "%u");
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DEBUGFS_FWSTATS_FILE(isr, irqs, "%u");
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DEBUGFS_FWSTATS_FILE(isr, tx_procs, "%u");
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DEBUGFS_FWSTATS_FILE(isr, decrypt_done, "%u");
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DEBUGFS_FWSTATS_FILE(isr, dma0_done, "%u");
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DEBUGFS_FWSTATS_FILE(isr, dma1_done, "%u");
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DEBUGFS_FWSTATS_FILE(isr, tx_exch_complete, "%u");
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DEBUGFS_FWSTATS_FILE(isr, commands, "%u");
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DEBUGFS_FWSTATS_FILE(isr, rx_procs, "%u");
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DEBUGFS_FWSTATS_FILE(isr, hw_pm_mode_changes, "%u");
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DEBUGFS_FWSTATS_FILE(isr, host_acknowledges, "%u");
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DEBUGFS_FWSTATS_FILE(isr, pci_pm, "%u");
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DEBUGFS_FWSTATS_FILE(isr, wakeups, "%u");
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DEBUGFS_FWSTATS_FILE(isr, low_rssi, "%u");
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DEBUGFS_FWSTATS_FILE(wep, addr_key_count, "%u");
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DEBUGFS_FWSTATS_FILE(wep, default_key_count, "%u");
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/* skipping wep.reserved */
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DEBUGFS_FWSTATS_FILE(wep, key_not_found, "%u");
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DEBUGFS_FWSTATS_FILE(wep, decrypt_fail, "%u");
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DEBUGFS_FWSTATS_FILE(wep, packets, "%u");
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DEBUGFS_FWSTATS_FILE(wep, interrupt, "%u");
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DEBUGFS_FWSTATS_FILE(pwr, ps_enter, "%u");
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DEBUGFS_FWSTATS_FILE(pwr, elp_enter, "%u");
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DEBUGFS_FWSTATS_FILE(pwr, missing_bcns, "%u");
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DEBUGFS_FWSTATS_FILE(pwr, wake_on_host, "%u");
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DEBUGFS_FWSTATS_FILE(pwr, wake_on_timer_exp, "%u");
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DEBUGFS_FWSTATS_FILE(pwr, tx_with_ps, "%u");
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DEBUGFS_FWSTATS_FILE(pwr, tx_without_ps, "%u");
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DEBUGFS_FWSTATS_FILE(pwr, rcvd_beacons, "%u");
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DEBUGFS_FWSTATS_FILE(pwr, power_save_off, "%u");
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DEBUGFS_FWSTATS_FILE(pwr, enable_ps, "%u");
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DEBUGFS_FWSTATS_FILE(pwr, disable_ps, "%u");
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DEBUGFS_FWSTATS_FILE(pwr, fix_tsf_ps, "%u");
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/* skipping cont_miss_bcns_spread for now */
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DEBUGFS_FWSTATS_FILE(pwr, rcvd_awake_beacons, "%u");
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DEBUGFS_FWSTATS_FILE(mic, rx_pkts, "%u");
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DEBUGFS_FWSTATS_FILE(mic, calc_failure, "%u");
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DEBUGFS_FWSTATS_FILE(aes, encrypt_fail, "%u");
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DEBUGFS_FWSTATS_FILE(aes, decrypt_fail, "%u");
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DEBUGFS_FWSTATS_FILE(aes, encrypt_packets, "%u");
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DEBUGFS_FWSTATS_FILE(aes, decrypt_packets, "%u");
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DEBUGFS_FWSTATS_FILE(aes, encrypt_interrupt, "%u");
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DEBUGFS_FWSTATS_FILE(aes, decrypt_interrupt, "%u");
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DEBUGFS_FWSTATS_FILE(event, heart_beat, "%u");
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DEBUGFS_FWSTATS_FILE(event, calibration, "%u");
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DEBUGFS_FWSTATS_FILE(event, rx_mismatch, "%u");
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DEBUGFS_FWSTATS_FILE(event, rx_mem_empty, "%u");
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DEBUGFS_FWSTATS_FILE(event, rx_pool, "%u");
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DEBUGFS_FWSTATS_FILE(event, oom_late, "%u");
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DEBUGFS_FWSTATS_FILE(event, phy_transmit_error, "%u");
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DEBUGFS_FWSTATS_FILE(event, tx_stuck, "%u");
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DEBUGFS_FWSTATS_FILE(ps, pspoll_timeouts, "%u");
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DEBUGFS_FWSTATS_FILE(ps, upsd_timeouts, "%u");
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DEBUGFS_FWSTATS_FILE(ps, upsd_max_sptime, "%u");
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DEBUGFS_FWSTATS_FILE(ps, upsd_max_apturn, "%u");
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DEBUGFS_FWSTATS_FILE(ps, pspoll_max_apturn, "%u");
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DEBUGFS_FWSTATS_FILE(ps, pspoll_utilization, "%u");
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DEBUGFS_FWSTATS_FILE(ps, upsd_utilization, "%u");
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DEBUGFS_FWSTATS_FILE(rxpipe, rx_prep_beacon_drop, "%u");
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DEBUGFS_FWSTATS_FILE(rxpipe, descr_host_int_trig_rx_data, "%u");
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DEBUGFS_FWSTATS_FILE(rxpipe, beacon_buffer_thres_host_int_trig_rx_data, "%u");
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DEBUGFS_FWSTATS_FILE(rxpipe, missed_beacon_host_int_trig_rx_data, "%u");
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DEBUGFS_FWSTATS_FILE(rxpipe, tx_xfr_host_int_trig_rx_data, "%u");
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DEBUGFS_READONLY_FILE(retry_count, "%u", wl->stats.retry_count);
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DEBUGFS_READONLY_FILE(excessive_retries, "%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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{
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struct wl1271 *wl = file->private_data;
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u32 queue_len;
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char buf[20];
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int res;
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queue_len = wl->tx_queue_count;
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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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}
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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 = wl1271_open_file_generic,
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.llseek = default_llseek,
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};
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static ssize_t gpio_power_read(struct file *file, char __user *user_buf,
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size_t count, loff_t *ppos)
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{
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struct wl1271 *wl = file->private_data;
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bool state = test_bit(WL1271_FLAG_GPIO_POWER, &wl->flags);
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int res;
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char buf[10];
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res = scnprintf(buf, sizeof(buf), "%d\n", state);
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return simple_read_from_buffer(user_buf, count, ppos, buf, res);
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}
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static ssize_t gpio_power_write(struct file *file,
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const char __user *user_buf,
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size_t count, loff_t *ppos)
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{
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struct wl1271 *wl = file->private_data;
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char buf[10];
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size_t len;
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unsigned long value;
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int ret;
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len = min(count, sizeof(buf) - 1);
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if (copy_from_user(buf, user_buf, len)) {
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return -EFAULT;
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}
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buf[len] = '\0';
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ret = strict_strtoul(buf, 0, &value);
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if (ret < 0) {
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wl1271_warning("illegal value in gpio_power");
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return -EINVAL;
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}
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mutex_lock(&wl->mutex);
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if (value)
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wl1271_power_on(wl);
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else
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wl1271_power_off(wl);
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mutex_unlock(&wl->mutex);
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return count;
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}
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static const struct file_operations gpio_power_ops = {
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.read = gpio_power_read,
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.write = gpio_power_write,
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.open = wl1271_open_file_generic,
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.llseek = default_llseek,
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};
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static int wl1271_debugfs_add_files(struct wl1271 *wl,
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struct dentry *rootdir)
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{
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int ret = 0;
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struct dentry *entry, *stats;
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stats = debugfs_create_dir("fw-statistics", rootdir);
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if (!stats || IS_ERR(stats)) {
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entry = stats;
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goto err;
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}
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DEBUGFS_FWSTATS_ADD(tx, internal_desc_overflow);
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DEBUGFS_FWSTATS_ADD(rx, out_of_mem);
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DEBUGFS_FWSTATS_ADD(rx, hdr_overflow);
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DEBUGFS_FWSTATS_ADD(rx, hw_stuck);
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DEBUGFS_FWSTATS_ADD(rx, dropped);
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DEBUGFS_FWSTATS_ADD(rx, fcs_err);
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DEBUGFS_FWSTATS_ADD(rx, xfr_hint_trig);
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DEBUGFS_FWSTATS_ADD(rx, path_reset);
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DEBUGFS_FWSTATS_ADD(rx, reset_counter);
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DEBUGFS_FWSTATS_ADD(dma, rx_requested);
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DEBUGFS_FWSTATS_ADD(dma, rx_errors);
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DEBUGFS_FWSTATS_ADD(dma, tx_requested);
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DEBUGFS_FWSTATS_ADD(dma, tx_errors);
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DEBUGFS_FWSTATS_ADD(isr, cmd_cmplt);
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DEBUGFS_FWSTATS_ADD(isr, fiqs);
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DEBUGFS_FWSTATS_ADD(isr, rx_headers);
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DEBUGFS_FWSTATS_ADD(isr, rx_mem_overflow);
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DEBUGFS_FWSTATS_ADD(isr, rx_rdys);
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DEBUGFS_FWSTATS_ADD(isr, irqs);
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DEBUGFS_FWSTATS_ADD(isr, tx_procs);
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DEBUGFS_FWSTATS_ADD(isr, decrypt_done);
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DEBUGFS_FWSTATS_ADD(isr, dma0_done);
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DEBUGFS_FWSTATS_ADD(isr, dma1_done);
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DEBUGFS_FWSTATS_ADD(isr, tx_exch_complete);
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DEBUGFS_FWSTATS_ADD(isr, commands);
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DEBUGFS_FWSTATS_ADD(isr, rx_procs);
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DEBUGFS_FWSTATS_ADD(isr, hw_pm_mode_changes);
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DEBUGFS_FWSTATS_ADD(isr, host_acknowledges);
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DEBUGFS_FWSTATS_ADD(isr, pci_pm);
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DEBUGFS_FWSTATS_ADD(isr, wakeups);
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DEBUGFS_FWSTATS_ADD(isr, low_rssi);
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DEBUGFS_FWSTATS_ADD(wep, addr_key_count);
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DEBUGFS_FWSTATS_ADD(wep, default_key_count);
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/* skipping wep.reserved */
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DEBUGFS_FWSTATS_ADD(wep, key_not_found);
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DEBUGFS_FWSTATS_ADD(wep, decrypt_fail);
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DEBUGFS_FWSTATS_ADD(wep, packets);
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DEBUGFS_FWSTATS_ADD(wep, interrupt);
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DEBUGFS_FWSTATS_ADD(pwr, ps_enter);
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DEBUGFS_FWSTATS_ADD(pwr, elp_enter);
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DEBUGFS_FWSTATS_ADD(pwr, missing_bcns);
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DEBUGFS_FWSTATS_ADD(pwr, wake_on_host);
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DEBUGFS_FWSTATS_ADD(pwr, wake_on_timer_exp);
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DEBUGFS_FWSTATS_ADD(pwr, tx_with_ps);
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DEBUGFS_FWSTATS_ADD(pwr, tx_without_ps);
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DEBUGFS_FWSTATS_ADD(pwr, rcvd_beacons);
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DEBUGFS_FWSTATS_ADD(pwr, power_save_off);
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DEBUGFS_FWSTATS_ADD(pwr, enable_ps);
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DEBUGFS_FWSTATS_ADD(pwr, disable_ps);
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DEBUGFS_FWSTATS_ADD(pwr, fix_tsf_ps);
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/* skipping cont_miss_bcns_spread for now */
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DEBUGFS_FWSTATS_ADD(pwr, rcvd_awake_beacons);
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DEBUGFS_FWSTATS_ADD(mic, rx_pkts);
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DEBUGFS_FWSTATS_ADD(mic, calc_failure);
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DEBUGFS_FWSTATS_ADD(aes, encrypt_fail);
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DEBUGFS_FWSTATS_ADD(aes, decrypt_fail);
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DEBUGFS_FWSTATS_ADD(aes, encrypt_packets);
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DEBUGFS_FWSTATS_ADD(aes, decrypt_packets);
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DEBUGFS_FWSTATS_ADD(aes, encrypt_interrupt);
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DEBUGFS_FWSTATS_ADD(aes, decrypt_interrupt);
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DEBUGFS_FWSTATS_ADD(event, heart_beat);
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DEBUGFS_FWSTATS_ADD(event, calibration);
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DEBUGFS_FWSTATS_ADD(event, rx_mismatch);
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DEBUGFS_FWSTATS_ADD(event, rx_mem_empty);
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DEBUGFS_FWSTATS_ADD(event, rx_pool);
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DEBUGFS_FWSTATS_ADD(event, oom_late);
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DEBUGFS_FWSTATS_ADD(event, phy_transmit_error);
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DEBUGFS_FWSTATS_ADD(event, tx_stuck);
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DEBUGFS_FWSTATS_ADD(ps, pspoll_timeouts);
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DEBUGFS_FWSTATS_ADD(ps, upsd_timeouts);
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DEBUGFS_FWSTATS_ADD(ps, upsd_max_sptime);
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DEBUGFS_FWSTATS_ADD(ps, upsd_max_apturn);
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DEBUGFS_FWSTATS_ADD(ps, pspoll_max_apturn);
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DEBUGFS_FWSTATS_ADD(ps, pspoll_utilization);
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DEBUGFS_FWSTATS_ADD(ps, upsd_utilization);
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DEBUGFS_FWSTATS_ADD(rxpipe, rx_prep_beacon_drop);
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DEBUGFS_FWSTATS_ADD(rxpipe, descr_host_int_trig_rx_data);
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DEBUGFS_FWSTATS_ADD(rxpipe, beacon_buffer_thres_host_int_trig_rx_data);
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DEBUGFS_FWSTATS_ADD(rxpipe, missed_beacon_host_int_trig_rx_data);
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DEBUGFS_FWSTATS_ADD(rxpipe, tx_xfr_host_int_trig_rx_data);
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DEBUGFS_ADD(tx_queue_len, rootdir);
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DEBUGFS_ADD(retry_count, rootdir);
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DEBUGFS_ADD(excessive_retries, rootdir);
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DEBUGFS_ADD(gpio_power, rootdir);
|
|
|
|
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;
|
|
}
|