431 lines
12 KiB
C
431 lines
12 KiB
C
/*
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* mac80211 glue code for mac80211 ST-Ericsson CW1200 drivers
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* DebugFS code
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*
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* Copyright (c) 2010, ST-Ericsson
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* Author: Dmitry Tarnyagin <dmitry.tarnyagin@lockless.no>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 as
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* published by the Free Software Foundation.
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*/
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#include <linux/module.h>
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#include <linux/debugfs.h>
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#include <linux/seq_file.h>
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#include "cw1200.h"
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#include "debug.h"
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#include "fwio.h"
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/* join_status */
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static const char * const cw1200_debug_join_status[] = {
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"passive",
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"monitor",
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"station (joining)",
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"station (not authenticated yet)",
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"station",
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"adhoc",
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"access point",
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};
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/* WSM_JOIN_PREAMBLE_... */
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static const char * const cw1200_debug_preamble[] = {
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"long",
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"short",
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"long on 1 and 2 Mbps",
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};
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static const char * const cw1200_debug_link_id[] = {
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"OFF",
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"REQ",
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"SOFT",
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"HARD",
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"RESET",
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"RESET_REMAP",
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};
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static const char *cw1200_debug_mode(int mode)
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{
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switch (mode) {
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case NL80211_IFTYPE_UNSPECIFIED:
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return "unspecified";
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case NL80211_IFTYPE_MONITOR:
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return "monitor";
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case NL80211_IFTYPE_STATION:
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return "station";
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case NL80211_IFTYPE_ADHOC:
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return "adhoc";
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case NL80211_IFTYPE_MESH_POINT:
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return "mesh point";
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case NL80211_IFTYPE_AP:
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return "access point";
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case NL80211_IFTYPE_P2P_CLIENT:
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return "p2p client";
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case NL80211_IFTYPE_P2P_GO:
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return "p2p go";
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default:
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return "unsupported";
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}
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}
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static void cw1200_queue_status_show(struct seq_file *seq,
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struct cw1200_queue *q)
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{
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int i;
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seq_printf(seq, "Queue %d:\n", q->queue_id);
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seq_printf(seq, " capacity: %zu\n", q->capacity);
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seq_printf(seq, " queued: %zu\n", q->num_queued);
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seq_printf(seq, " pending: %zu\n", q->num_pending);
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seq_printf(seq, " sent: %zu\n", q->num_sent);
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seq_printf(seq, " locked: %s\n", q->tx_locked_cnt ? "yes" : "no");
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seq_printf(seq, " overfull: %s\n", q->overfull ? "yes" : "no");
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seq_puts(seq, " link map: 0-> ");
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for (i = 0; i < q->stats->map_capacity; ++i)
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seq_printf(seq, "%.2d ", q->link_map_cache[i]);
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seq_printf(seq, "<-%zu\n", q->stats->map_capacity);
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}
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static void cw1200_debug_print_map(struct seq_file *seq,
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struct cw1200_common *priv,
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const char *label,
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u32 map)
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{
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int i;
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seq_printf(seq, "%s0-> ", label);
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for (i = 0; i < priv->tx_queue_stats.map_capacity; ++i)
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seq_printf(seq, "%s ", (map & BIT(i)) ? "**" : "..");
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seq_printf(seq, "<-%zu\n", priv->tx_queue_stats.map_capacity - 1);
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}
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static int cw1200_status_show(struct seq_file *seq, void *v)
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{
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int i;
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struct list_head *item;
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struct cw1200_common *priv = seq->private;
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struct cw1200_debug_priv *d = priv->debug;
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seq_puts(seq, "CW1200 Wireless LAN driver status\n");
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seq_printf(seq, "Hardware: %d.%d\n",
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priv->wsm_caps.hw_id,
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priv->wsm_caps.hw_subid);
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seq_printf(seq, "Firmware: %s %d.%d\n",
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cw1200_fw_types[priv->wsm_caps.fw_type],
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priv->wsm_caps.fw_ver,
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priv->wsm_caps.fw_build);
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seq_printf(seq, "FW API: %d\n",
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priv->wsm_caps.fw_api);
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seq_printf(seq, "FW caps: 0x%.4X\n",
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priv->wsm_caps.fw_cap);
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seq_printf(seq, "FW label: '%s'\n",
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priv->wsm_caps.fw_label);
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seq_printf(seq, "Mode: %s%s\n",
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cw1200_debug_mode(priv->mode),
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priv->listening ? " (listening)" : "");
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seq_printf(seq, "Join state: %s\n",
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cw1200_debug_join_status[priv->join_status]);
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if (priv->channel)
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seq_printf(seq, "Channel: %d%s\n",
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priv->channel->hw_value,
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priv->channel_switch_in_progress ?
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" (switching)" : "");
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if (priv->rx_filter.promiscuous)
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seq_puts(seq, "Filter: promisc\n");
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else if (priv->rx_filter.fcs)
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seq_puts(seq, "Filter: fcs\n");
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if (priv->rx_filter.bssid)
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seq_puts(seq, "Filter: bssid\n");
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if (!priv->disable_beacon_filter)
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seq_puts(seq, "Filter: beacons\n");
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if (priv->enable_beacon ||
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priv->mode == NL80211_IFTYPE_AP ||
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priv->mode == NL80211_IFTYPE_ADHOC ||
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priv->mode == NL80211_IFTYPE_MESH_POINT ||
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priv->mode == NL80211_IFTYPE_P2P_GO)
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seq_printf(seq, "Beaconing: %s\n",
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priv->enable_beacon ?
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"enabled" : "disabled");
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for (i = 0; i < 4; ++i)
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seq_printf(seq, "EDCA(%d): %d, %d, %d, %d, %d\n", i,
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priv->edca.params[i].cwmin,
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priv->edca.params[i].cwmax,
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priv->edca.params[i].aifns,
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priv->edca.params[i].txop_limit,
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priv->edca.params[i].max_rx_lifetime);
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if (priv->join_status == CW1200_JOIN_STATUS_STA) {
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static const char *pm_mode = "unknown";
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switch (priv->powersave_mode.mode) {
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case WSM_PSM_ACTIVE:
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pm_mode = "off";
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break;
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case WSM_PSM_PS:
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pm_mode = "on";
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break;
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case WSM_PSM_FAST_PS:
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pm_mode = "dynamic";
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break;
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}
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seq_printf(seq, "Preamble: %s\n",
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cw1200_debug_preamble[priv->association_mode.preamble]);
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seq_printf(seq, "AMPDU spcn: %d\n",
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priv->association_mode.mpdu_start_spacing);
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seq_printf(seq, "Basic rate: 0x%.8X\n",
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le32_to_cpu(priv->association_mode.basic_rate_set));
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seq_printf(seq, "Bss lost: %d beacons\n",
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priv->bss_params.beacon_lost_count);
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seq_printf(seq, "AID: %d\n",
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priv->bss_params.aid);
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seq_printf(seq, "Rates: 0x%.8X\n",
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priv->bss_params.operational_rate_set);
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seq_printf(seq, "Powersave: %s\n", pm_mode);
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}
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seq_printf(seq, "HT: %s\n",
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cw1200_is_ht(&priv->ht_info) ? "on" : "off");
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if (cw1200_is_ht(&priv->ht_info)) {
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seq_printf(seq, "Greenfield: %s\n",
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cw1200_ht_greenfield(&priv->ht_info) ? "yes" : "no");
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seq_printf(seq, "AMPDU dens: %d\n",
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cw1200_ht_ampdu_density(&priv->ht_info));
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}
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seq_printf(seq, "RSSI thold: %d\n",
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priv->cqm_rssi_thold);
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seq_printf(seq, "RSSI hyst: %d\n",
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priv->cqm_rssi_hyst);
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seq_printf(seq, "Long retr: %d\n",
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priv->long_frame_max_tx_count);
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seq_printf(seq, "Short retr: %d\n",
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priv->short_frame_max_tx_count);
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spin_lock_bh(&priv->tx_policy_cache.lock);
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i = 0;
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list_for_each(item, &priv->tx_policy_cache.used)
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++i;
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spin_unlock_bh(&priv->tx_policy_cache.lock);
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seq_printf(seq, "RC in use: %d\n", i);
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seq_puts(seq, "\n");
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for (i = 0; i < 4; ++i) {
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cw1200_queue_status_show(seq, &priv->tx_queue[i]);
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seq_puts(seq, "\n");
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}
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cw1200_debug_print_map(seq, priv, "Link map: ",
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priv->link_id_map);
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cw1200_debug_print_map(seq, priv, "Asleep map: ",
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priv->sta_asleep_mask);
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cw1200_debug_print_map(seq, priv, "PSPOLL map: ",
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priv->pspoll_mask);
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seq_puts(seq, "\n");
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for (i = 0; i < CW1200_MAX_STA_IN_AP_MODE; ++i) {
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if (priv->link_id_db[i].status) {
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seq_printf(seq, "Link %d: %s, %pM\n",
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i + 1,
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cw1200_debug_link_id[priv->link_id_db[i].status],
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priv->link_id_db[i].mac);
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}
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}
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seq_puts(seq, "\n");
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seq_printf(seq, "BH status: %s\n",
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atomic_read(&priv->bh_term) ? "terminated" : "alive");
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seq_printf(seq, "Pending RX: %d\n",
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atomic_read(&priv->bh_rx));
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seq_printf(seq, "Pending TX: %d\n",
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atomic_read(&priv->bh_tx));
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if (priv->bh_error)
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seq_printf(seq, "BH errcode: %d\n",
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priv->bh_error);
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seq_printf(seq, "TX bufs: %d x %d bytes\n",
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priv->wsm_caps.input_buffers,
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priv->wsm_caps.input_buffer_size);
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seq_printf(seq, "Used bufs: %d\n",
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priv->hw_bufs_used);
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seq_printf(seq, "Powermgmt: %s\n",
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priv->powersave_enabled ? "on" : "off");
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seq_printf(seq, "Device: %s\n",
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priv->device_can_sleep ? "asleep" : "awake");
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spin_lock(&priv->wsm_cmd.lock);
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seq_printf(seq, "WSM status: %s\n",
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priv->wsm_cmd.done ? "idle" : "active");
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seq_printf(seq, "WSM cmd: 0x%.4X (%td bytes)\n",
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priv->wsm_cmd.cmd, priv->wsm_cmd.len);
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seq_printf(seq, "WSM retval: %d\n",
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priv->wsm_cmd.ret);
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spin_unlock(&priv->wsm_cmd.lock);
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seq_printf(seq, "Datapath: %s\n",
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atomic_read(&priv->tx_lock) ? "locked" : "unlocked");
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if (atomic_read(&priv->tx_lock))
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seq_printf(seq, "TXlock cnt: %d\n",
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atomic_read(&priv->tx_lock));
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seq_printf(seq, "TXed: %d\n",
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d->tx);
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seq_printf(seq, "AGG TXed: %d\n",
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d->tx_agg);
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seq_printf(seq, "MULTI TXed: %d (%d)\n",
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d->tx_multi, d->tx_multi_frames);
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seq_printf(seq, "RXed: %d\n",
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d->rx);
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seq_printf(seq, "AGG RXed: %d\n",
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d->rx_agg);
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seq_printf(seq, "TX miss: %d\n",
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d->tx_cache_miss);
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seq_printf(seq, "TX align: %d\n",
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d->tx_align);
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seq_printf(seq, "TX burst: %d\n",
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d->tx_burst);
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seq_printf(seq, "TX TTL: %d\n",
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d->tx_ttl);
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seq_printf(seq, "Scan: %s\n",
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atomic_read(&priv->scan.in_progress) ? "active" : "idle");
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return 0;
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}
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static int cw1200_status_open(struct inode *inode, struct file *file)
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{
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return single_open(file, &cw1200_status_show,
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inode->i_private);
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}
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static const struct file_operations fops_status = {
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.open = cw1200_status_open,
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.read = seq_read,
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.llseek = seq_lseek,
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.release = single_release,
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.owner = THIS_MODULE,
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};
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static int cw1200_counters_show(struct seq_file *seq, void *v)
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{
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int ret;
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struct cw1200_common *priv = seq->private;
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struct wsm_mib_counters_table counters;
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ret = wsm_get_counters_table(priv, &counters);
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if (ret)
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return ret;
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#define PUT_COUNTER(tab, name) \
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seq_printf(seq, "%s:" tab "%d\n", #name, \
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__le32_to_cpu(counters.name))
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PUT_COUNTER("\t\t", plcp_errors);
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PUT_COUNTER("\t\t", fcs_errors);
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PUT_COUNTER("\t\t", tx_packets);
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PUT_COUNTER("\t\t", rx_packets);
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PUT_COUNTER("\t\t", rx_packet_errors);
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PUT_COUNTER("\t", rx_decryption_failures);
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PUT_COUNTER("\t\t", rx_mic_failures);
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PUT_COUNTER("\t", rx_no_key_failures);
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PUT_COUNTER("\t", tx_multicast_frames);
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PUT_COUNTER("\t", tx_frames_success);
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PUT_COUNTER("\t", tx_frame_failures);
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PUT_COUNTER("\t", tx_frames_retried);
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PUT_COUNTER("\t", tx_frames_multi_retried);
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PUT_COUNTER("\t", rx_frame_duplicates);
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PUT_COUNTER("\t\t", rts_success);
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PUT_COUNTER("\t\t", rts_failures);
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PUT_COUNTER("\t\t", ack_failures);
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PUT_COUNTER("\t", rx_multicast_frames);
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PUT_COUNTER("\t", rx_frames_success);
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PUT_COUNTER("\t", rx_cmac_icv_errors);
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PUT_COUNTER("\t\t", rx_cmac_replays);
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PUT_COUNTER("\t", rx_mgmt_ccmp_replays);
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#undef PUT_COUNTER
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return 0;
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}
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static int cw1200_counters_open(struct inode *inode, struct file *file)
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{
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return single_open(file, &cw1200_counters_show,
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inode->i_private);
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}
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static const struct file_operations fops_counters = {
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.open = cw1200_counters_open,
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.read = seq_read,
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.llseek = seq_lseek,
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.release = single_release,
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.owner = THIS_MODULE,
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};
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static ssize_t cw1200_wsm_dumps(struct file *file,
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const char __user *user_buf, size_t count, loff_t *ppos)
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{
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struct cw1200_common *priv = file->private_data;
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char buf[1];
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if (!count)
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return -EINVAL;
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if (copy_from_user(buf, user_buf, 1))
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return -EFAULT;
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if (buf[0] == '1')
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priv->wsm_enable_wsm_dumps = 1;
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else
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priv->wsm_enable_wsm_dumps = 0;
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return count;
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}
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static const struct file_operations fops_wsm_dumps = {
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.open = simple_open,
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.write = cw1200_wsm_dumps,
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.llseek = default_llseek,
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};
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int cw1200_debug_init(struct cw1200_common *priv)
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{
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int ret = -ENOMEM;
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struct cw1200_debug_priv *d = kzalloc(sizeof(struct cw1200_debug_priv),
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GFP_KERNEL);
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priv->debug = d;
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if (!d)
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return ret;
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d->debugfs_phy = debugfs_create_dir("cw1200",
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priv->hw->wiphy->debugfsdir);
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if (!d->debugfs_phy)
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goto err;
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if (!debugfs_create_file("status", 0400, d->debugfs_phy,
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priv, &fops_status))
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goto err;
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if (!debugfs_create_file("counters", 0400, d->debugfs_phy,
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priv, &fops_counters))
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goto err;
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if (!debugfs_create_file("wsm_dumps", 0200, d->debugfs_phy,
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priv, &fops_wsm_dumps))
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goto err;
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return 0;
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err:
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priv->debug = NULL;
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debugfs_remove_recursive(d->debugfs_phy);
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kfree(d);
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return ret;
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}
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void cw1200_debug_release(struct cw1200_common *priv)
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{
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struct cw1200_debug_priv *d = priv->debug;
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if (d) {
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debugfs_remove_recursive(d->debugfs_phy);
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priv->debug = NULL;
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kfree(d);
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}
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}
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