--- /dev/null
+/*
+ * This file is part of wl1271
+ *
+ * Copyright (C) 2009 Nokia Corporation
+ *
+ * Contact: Luciano Coelho <luciano.coelho@nokia.com>
+ *
+ * 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 <linux/skbuff.h>
+#include <linux/slab.h>
+
+#include "wl12xx.h"
+#include "acx.h"
+#include "ps.h"
+#include "io.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, \
+ .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_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, \
+ .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, false);
+ if (ret < 0)
+ goto out;
+
+ if (wl->state == WL1271_STATE_ON &&
+ 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 = wl->tx_queue_count;
+
+ 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,
+ .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;
+ char buf[10];
+ size_t len;
+ unsigned long value;
+ int ret;
+
+ mutex_lock(&wl->mutex);
+
+ len = min(count, sizeof(buf) - 1);
+ if (copy_from_user(buf, user_buf, len)) {
+ ret = -EFAULT;
+ goto out;
+ }
+ buf[len] = '\0';
+
+ ret = strict_strtoul(buf, 0, &value);
+ if (ret < 0) {
+ wl1271_warning("illegal value in gpio_power");
+ goto out;
+ }
+
+ if (value)
+ wl1271_power_on(wl);
+ else
+ wl1271_power_off(wl);
+
+out:
+ 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,
+ .llseek = default_llseek,
+};
+
+static int wl1271_debugfs_add_files(struct wl1271 *wl)
+{
+ int ret = 0;
+ struct dentry *entry, *stats;
+
+ stats = debugfs_create_dir("fw-statistics", wl->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, wl->rootdir);
+ DEBUGFS_ADD(retry_count, wl->rootdir);
+ DEBUGFS_ADD(excessive_retries, wl->rootdir);
+
+ DEBUGFS_ADD(gpio_power, wl->rootdir);
+
+ entry = debugfs_create_x32("debug_level", 0600, wl->rootdir,
+ &wl12xx_debug_level);
+ if (!entry || IS_ERR(entry))
+ goto err;
+
+ 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->rootdir)
+ 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;
+
+ wl->rootdir = debugfs_create_dir(KBUILD_MODNAME,
+ wl->hw->wiphy->debugfsdir);
+
+ if (IS_ERR(wl->rootdir)) {
+ ret = PTR_ERR(wl->rootdir);
+ wl->rootdir = NULL;
+ 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);
+
+ 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(wl->rootdir);
+ wl->rootdir = NULL;
+
+err:
+ return ret;
+}
+
+void wl1271_debugfs_exit(struct wl1271 *wl)
+{
+ kfree(wl->stats.fw_stats);
+ wl->stats.fw_stats = NULL;
+
+ debugfs_remove_recursive(wl->rootdir);
+ wl->rootdir = NULL;
+
+}
projects / mv-sheeva.git / blobdiff