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authorKalle Valo <kvalo@codeaurora.org>2015-11-17 20:09:02 +0200
committerKalle Valo <kvalo@codeaurora.org>2015-11-18 14:28:30 +0200
commit560424e9a979a7b460055bda497bb4522ba5cc87 (patch)
tree53d3a3fb2beb0df84a3933934243249e71021c7c /drivers/net/wireless/cw1200/sta.c
parent05491d2ccf20b20a1375303441fbbfbd12b24a4f (diff)
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cw1200: move under st vendor directory
Part of reorganising wireless drivers directory and Kconfig. Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Diffstat (limited to 'drivers/net/wireless/cw1200/sta.c')
-rw-r--r--drivers/net/wireless/cw1200/sta.c2399
1 files changed, 0 insertions, 2399 deletions
diff --git a/drivers/net/wireless/cw1200/sta.c b/drivers/net/wireless/cw1200/sta.c
deleted file mode 100644
index 95a7fdb3cc1c..000000000000
--- a/drivers/net/wireless/cw1200/sta.c
+++ /dev/null
@@ -1,2399 +0,0 @@
-/*
- * Mac80211 STA API for ST-Ericsson CW1200 drivers
- *
- * Copyright (c) 2010, ST-Ericsson
- * Author: Dmitry Tarnyagin <dmitry.tarnyagin@lockless.no>
- *
- * 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.
- */
-
-#include <linux/vmalloc.h>
-#include <linux/sched.h>
-#include <linux/firmware.h>
-#include <linux/module.h>
-#include <linux/etherdevice.h>
-
-#include "cw1200.h"
-#include "sta.h"
-#include "fwio.h"
-#include "bh.h"
-#include "debug.h"
-
-#ifndef ERP_INFO_BYTE_OFFSET
-#define ERP_INFO_BYTE_OFFSET 2
-#endif
-
-static void cw1200_do_join(struct cw1200_common *priv);
-static void cw1200_do_unjoin(struct cw1200_common *priv);
-
-static int cw1200_upload_beacon(struct cw1200_common *priv);
-static int cw1200_upload_pspoll(struct cw1200_common *priv);
-static int cw1200_upload_null(struct cw1200_common *priv);
-static int cw1200_upload_qosnull(struct cw1200_common *priv);
-static int cw1200_start_ap(struct cw1200_common *priv);
-static int cw1200_update_beaconing(struct cw1200_common *priv);
-static int cw1200_enable_beaconing(struct cw1200_common *priv,
- bool enable);
-static void __cw1200_sta_notify(struct ieee80211_hw *dev,
- struct ieee80211_vif *vif,
- enum sta_notify_cmd notify_cmd,
- int link_id);
-static int __cw1200_flush(struct cw1200_common *priv, bool drop);
-
-static inline void __cw1200_free_event_queue(struct list_head *list)
-{
- struct cw1200_wsm_event *event, *tmp;
- list_for_each_entry_safe(event, tmp, list, link) {
- list_del(&event->link);
- kfree(event);
- }
-}
-
-/* ******************************************************************** */
-/* STA API */
-
-int cw1200_start(struct ieee80211_hw *dev)
-{
- struct cw1200_common *priv = dev->priv;
- int ret = 0;
-
- cw1200_pm_stay_awake(&priv->pm_state, HZ);
-
- mutex_lock(&priv->conf_mutex);
-
- /* default EDCA */
- WSM_EDCA_SET(&priv->edca, 0, 0x0002, 0x0003, 0x0007, 47, 0xc8, false);
- WSM_EDCA_SET(&priv->edca, 1, 0x0002, 0x0007, 0x000f, 94, 0xc8, false);
- WSM_EDCA_SET(&priv->edca, 2, 0x0003, 0x000f, 0x03ff, 0, 0xc8, false);
- WSM_EDCA_SET(&priv->edca, 3, 0x0007, 0x000f, 0x03ff, 0, 0xc8, false);
- ret = wsm_set_edca_params(priv, &priv->edca);
- if (ret)
- goto out;
-
- ret = cw1200_set_uapsd_param(priv, &priv->edca);
- if (ret)
- goto out;
-
- priv->setbssparams_done = false;
-
- memcpy(priv->mac_addr, dev->wiphy->perm_addr, ETH_ALEN);
- priv->mode = NL80211_IFTYPE_MONITOR;
- priv->wep_default_key_id = -1;
-
- priv->cqm_beacon_loss_count = 10;
-
- ret = cw1200_setup_mac(priv);
- if (ret)
- goto out;
-
-out:
- mutex_unlock(&priv->conf_mutex);
- return ret;
-}
-
-void cw1200_stop(struct ieee80211_hw *dev)
-{
- struct cw1200_common *priv = dev->priv;
- LIST_HEAD(list);
- int i;
-
- wsm_lock_tx(priv);
-
- while (down_trylock(&priv->scan.lock)) {
- /* Scan is in progress. Force it to stop. */
- priv->scan.req = NULL;
- schedule();
- }
- up(&priv->scan.lock);
-
- cancel_delayed_work_sync(&priv->scan.probe_work);
- cancel_delayed_work_sync(&priv->scan.timeout);
- cancel_delayed_work_sync(&priv->clear_recent_scan_work);
- cancel_delayed_work_sync(&priv->join_timeout);
- cw1200_cqm_bssloss_sm(priv, 0, 0, 0);
- cancel_work_sync(&priv->unjoin_work);
- cancel_delayed_work_sync(&priv->link_id_gc_work);
- flush_workqueue(priv->workqueue);
- del_timer_sync(&priv->mcast_timeout);
- mutex_lock(&priv->conf_mutex);
- priv->mode = NL80211_IFTYPE_UNSPECIFIED;
- priv->listening = false;
-
- spin_lock(&priv->event_queue_lock);
- list_splice_init(&priv->event_queue, &list);
- spin_unlock(&priv->event_queue_lock);
- __cw1200_free_event_queue(&list);
-
-
- priv->join_status = CW1200_JOIN_STATUS_PASSIVE;
- priv->join_pending = false;
-
- for (i = 0; i < 4; i++)
- cw1200_queue_clear(&priv->tx_queue[i]);
- mutex_unlock(&priv->conf_mutex);
- tx_policy_clean(priv);
-
- /* HACK! */
- if (atomic_xchg(&priv->tx_lock, 1) != 1)
- pr_debug("[STA] TX is force-unlocked due to stop request.\n");
-
- wsm_unlock_tx(priv);
- atomic_xchg(&priv->tx_lock, 0); /* for recovery to work */
-}
-
-static int cw1200_bssloss_mitigation = 1;
-module_param(cw1200_bssloss_mitigation, int, 0644);
-MODULE_PARM_DESC(cw1200_bssloss_mitigation, "BSS Loss mitigation. 0 == disabled, 1 == enabled (default)");
-
-
-void __cw1200_cqm_bssloss_sm(struct cw1200_common *priv,
- int init, int good, int bad)
-{
- int tx = 0;
-
- priv->delayed_link_loss = 0;
- cancel_work_sync(&priv->bss_params_work);
-
- pr_debug("[STA] CQM BSSLOSS_SM: state: %d init %d good %d bad: %d txlock: %d uj: %d\n",
- priv->bss_loss_state,
- init, good, bad,
- atomic_read(&priv->tx_lock),
- priv->delayed_unjoin);
-
- /* If we have a pending unjoin */
- if (priv->delayed_unjoin)
- return;
-
- if (init) {
- queue_delayed_work(priv->workqueue,
- &priv->bss_loss_work,
- HZ);
- priv->bss_loss_state = 0;
-
- /* Skip the confimration procedure in P2P case */
- if (!priv->vif->p2p && !atomic_read(&priv->tx_lock))
- tx = 1;
- } else if (good) {
- cancel_delayed_work_sync(&priv->bss_loss_work);
- priv->bss_loss_state = 0;
- queue_work(priv->workqueue, &priv->bss_params_work);
- } else if (bad) {
- /* XXX Should we just keep going until we time out? */
- if (priv->bss_loss_state < 3)
- tx = 1;
- } else {
- cancel_delayed_work_sync(&priv->bss_loss_work);
- priv->bss_loss_state = 0;
- }
-
- /* Bypass mitigation if it's disabled */
- if (!cw1200_bssloss_mitigation)
- tx = 0;
-
- /* Spit out a NULL packet to our AP if necessary */
- if (tx) {
- struct sk_buff *skb;
-
- priv->bss_loss_state++;
-
- skb = ieee80211_nullfunc_get(priv->hw, priv->vif);
- WARN_ON(!skb);
- if (skb)
- cw1200_tx(priv->hw, NULL, skb);
- }
-}
-
-int cw1200_add_interface(struct ieee80211_hw *dev,
- struct ieee80211_vif *vif)
-{
- int ret;
- struct cw1200_common *priv = dev->priv;
- /* __le32 auto_calibration_mode = __cpu_to_le32(1); */
-
- vif->driver_flags |= IEEE80211_VIF_BEACON_FILTER |
- IEEE80211_VIF_SUPPORTS_UAPSD |
- IEEE80211_VIF_SUPPORTS_CQM_RSSI;
-
- mutex_lock(&priv->conf_mutex);
-
- if (priv->mode != NL80211_IFTYPE_MONITOR) {
- mutex_unlock(&priv->conf_mutex);
- return -EOPNOTSUPP;
- }
-
- switch (vif->type) {
- case NL80211_IFTYPE_STATION:
- case NL80211_IFTYPE_ADHOC:
- case NL80211_IFTYPE_MESH_POINT:
- case NL80211_IFTYPE_AP:
- priv->mode = vif->type;
- break;
- default:
- mutex_unlock(&priv->conf_mutex);
- return -EOPNOTSUPP;
- }
-
- priv->vif = vif;
- memcpy(priv->mac_addr, vif->addr, ETH_ALEN);
- ret = cw1200_setup_mac(priv);
- /* Enable auto-calibration */
- /* Exception in subsequent channel switch; disabled.
- * wsm_write_mib(priv, WSM_MIB_ID_SET_AUTO_CALIBRATION_MODE,
- * &auto_calibration_mode, sizeof(auto_calibration_mode));
- */
-
- mutex_unlock(&priv->conf_mutex);
- return ret;
-}
-
-void cw1200_remove_interface(struct ieee80211_hw *dev,
- struct ieee80211_vif *vif)
-{
- struct cw1200_common *priv = dev->priv;
- struct wsm_reset reset = {
- .reset_statistics = true,
- };
- int i;
-
- mutex_lock(&priv->conf_mutex);
- switch (priv->join_status) {
- case CW1200_JOIN_STATUS_JOINING:
- case CW1200_JOIN_STATUS_PRE_STA:
- case CW1200_JOIN_STATUS_STA:
- case CW1200_JOIN_STATUS_IBSS:
- wsm_lock_tx(priv);
- if (queue_work(priv->workqueue, &priv->unjoin_work) <= 0)
- wsm_unlock_tx(priv);
- break;
- case CW1200_JOIN_STATUS_AP:
- for (i = 0; priv->link_id_map; ++i) {
- if (priv->link_id_map & BIT(i)) {
- reset.link_id = i;
- wsm_reset(priv, &reset);
- priv->link_id_map &= ~BIT(i);
- }
- }
- memset(priv->link_id_db, 0, sizeof(priv->link_id_db));
- priv->sta_asleep_mask = 0;
- priv->enable_beacon = false;
- priv->tx_multicast = false;
- priv->aid0_bit_set = false;
- priv->buffered_multicasts = false;
- priv->pspoll_mask = 0;
- reset.link_id = 0;
- wsm_reset(priv, &reset);
- break;
- case CW1200_JOIN_STATUS_MONITOR:
- cw1200_update_listening(priv, false);
- break;
- default:
- break;
- }
- priv->vif = NULL;
- priv->mode = NL80211_IFTYPE_MONITOR;
- eth_zero_addr(priv->mac_addr);
- memset(&priv->p2p_ps_modeinfo, 0, sizeof(priv->p2p_ps_modeinfo));
- cw1200_free_keys(priv);
- cw1200_setup_mac(priv);
- priv->listening = false;
- priv->join_status = CW1200_JOIN_STATUS_PASSIVE;
- if (!__cw1200_flush(priv, true))
- wsm_unlock_tx(priv);
-
- mutex_unlock(&priv->conf_mutex);
-}
-
-int cw1200_change_interface(struct ieee80211_hw *dev,
- struct ieee80211_vif *vif,
- enum nl80211_iftype new_type,
- bool p2p)
-{
- int ret = 0;
- pr_debug("change_interface new: %d (%d), old: %d (%d)\n", new_type,
- p2p, vif->type, vif->p2p);
-
- if (new_type != vif->type || vif->p2p != p2p) {
- cw1200_remove_interface(dev, vif);
- vif->type = new_type;
- vif->p2p = p2p;
- ret = cw1200_add_interface(dev, vif);
- }
-
- return ret;
-}
-
-int cw1200_config(struct ieee80211_hw *dev, u32 changed)
-{
- int ret = 0;
- struct cw1200_common *priv = dev->priv;
- struct ieee80211_conf *conf = &dev->conf;
-
- pr_debug("CONFIG CHANGED: %08x\n", changed);
-
- down(&priv->scan.lock);
- mutex_lock(&priv->conf_mutex);
- /* TODO: IEEE80211_CONF_CHANGE_QOS */
- /* TODO: IEEE80211_CONF_CHANGE_LISTEN_INTERVAL */
-
- if (changed & IEEE80211_CONF_CHANGE_POWER) {
- priv->output_power = conf->power_level;
- pr_debug("[STA] TX power: %d\n", priv->output_power);
- wsm_set_output_power(priv, priv->output_power * 10);
- }
-
- if ((changed & IEEE80211_CONF_CHANGE_CHANNEL) &&
- (priv->channel != conf->chandef.chan)) {
- struct ieee80211_channel *ch = conf->chandef.chan;
- struct wsm_switch_channel channel = {
- .channel_number = ch->hw_value,
- };
- pr_debug("[STA] Freq %d (wsm ch: %d).\n",
- ch->center_freq, ch->hw_value);
-
- /* __cw1200_flush() implicitly locks tx, if successful */
- if (!__cw1200_flush(priv, false)) {
- if (!wsm_switch_channel(priv, &channel)) {
- ret = wait_event_timeout(priv->channel_switch_done,
- !priv->channel_switch_in_progress,
- 3 * HZ);
- if (ret) {
- /* Already unlocks if successful */
- priv->channel = ch;
- ret = 0;
- } else {
- ret = -ETIMEDOUT;
- }
- } else {
- /* Unlock if switch channel fails */
- wsm_unlock_tx(priv);
- }
- }
- }
-
- if (changed & IEEE80211_CONF_CHANGE_PS) {
- if (!(conf->flags & IEEE80211_CONF_PS))
- priv->powersave_mode.mode = WSM_PSM_ACTIVE;
- else if (conf->dynamic_ps_timeout <= 0)
- priv->powersave_mode.mode = WSM_PSM_PS;
- else
- priv->powersave_mode.mode = WSM_PSM_FAST_PS;
-
- /* Firmware requires that value for this 1-byte field must
- * be specified in units of 500us. Values above the 128ms
- * threshold are not supported.
- */
- if (conf->dynamic_ps_timeout >= 0x80)
- priv->powersave_mode.fast_psm_idle_period = 0xFF;
- else
- priv->powersave_mode.fast_psm_idle_period =
- conf->dynamic_ps_timeout << 1;
-
- if (priv->join_status == CW1200_JOIN_STATUS_STA &&
- priv->bss_params.aid)
- cw1200_set_pm(priv, &priv->powersave_mode);
- }
-
- if (changed & IEEE80211_CONF_CHANGE_MONITOR) {
- /* TBD: It looks like it's transparent
- * there's a monitor interface present -- use this
- * to determine for example whether to calculate
- * timestamps for packets or not, do not use instead
- * of filter flags!
- */
- }
-
- if (changed & IEEE80211_CONF_CHANGE_IDLE) {
- struct wsm_operational_mode mode = {
- .power_mode = cw1200_power_mode,
- .disable_more_flag_usage = true,
- };
-
- wsm_lock_tx(priv);
- /* Disable p2p-dev mode forced by TX request */
- if ((priv->join_status == CW1200_JOIN_STATUS_MONITOR) &&
- (conf->flags & IEEE80211_CONF_IDLE) &&
- !priv->listening) {
- cw1200_disable_listening(priv);
- priv->join_status = CW1200_JOIN_STATUS_PASSIVE;
- }
- wsm_set_operational_mode(priv, &mode);
- wsm_unlock_tx(priv);
- }
-
- if (changed & IEEE80211_CONF_CHANGE_RETRY_LIMITS) {
- pr_debug("[STA] Retry limits: %d (long), %d (short).\n",
- conf->long_frame_max_tx_count,
- conf->short_frame_max_tx_count);
- spin_lock_bh(&priv->tx_policy_cache.lock);
- priv->long_frame_max_tx_count = conf->long_frame_max_tx_count;
- priv->short_frame_max_tx_count =
- (conf->short_frame_max_tx_count < 0x0F) ?
- conf->short_frame_max_tx_count : 0x0F;
- priv->hw->max_rate_tries = priv->short_frame_max_tx_count;
- spin_unlock_bh(&priv->tx_policy_cache.lock);
- }
- mutex_unlock(&priv->conf_mutex);
- up(&priv->scan.lock);
- return ret;
-}
-
-void cw1200_update_filtering(struct cw1200_common *priv)
-{
- int ret;
- bool bssid_filtering = !priv->rx_filter.bssid;
- bool is_p2p = priv->vif && priv->vif->p2p;
- bool is_sta = priv->vif && NL80211_IFTYPE_STATION == priv->vif->type;
-
- static struct wsm_beacon_filter_control bf_ctrl;
- static struct wsm_mib_beacon_filter_table bf_tbl = {
- .entry[0].ie_id = WLAN_EID_VENDOR_SPECIFIC,
- .entry[0].flags = WSM_BEACON_FILTER_IE_HAS_CHANGED |
- WSM_BEACON_FILTER_IE_NO_LONGER_PRESENT |
- WSM_BEACON_FILTER_IE_HAS_APPEARED,
- .entry[0].oui[0] = 0x50,
- .entry[0].oui[1] = 0x6F,
- .entry[0].oui[2] = 0x9A,
- .entry[1].ie_id = WLAN_EID_HT_OPERATION,
- .entry[1].flags = WSM_BEACON_FILTER_IE_HAS_CHANGED |
- WSM_BEACON_FILTER_IE_NO_LONGER_PRESENT |
- WSM_BEACON_FILTER_IE_HAS_APPEARED,
- .entry[2].ie_id = WLAN_EID_ERP_INFO,
- .entry[2].flags = WSM_BEACON_FILTER_IE_HAS_CHANGED |
- WSM_BEACON_FILTER_IE_NO_LONGER_PRESENT |
- WSM_BEACON_FILTER_IE_HAS_APPEARED,
- };
-
- if (priv->join_status == CW1200_JOIN_STATUS_PASSIVE)
- return;
- else if (priv->join_status == CW1200_JOIN_STATUS_MONITOR)
- bssid_filtering = false;
-
- if (priv->disable_beacon_filter) {
- bf_ctrl.enabled = 0;
- bf_ctrl.bcn_count = 1;
- bf_tbl.num = __cpu_to_le32(0);
- } else if (is_p2p || !is_sta) {
- bf_ctrl.enabled = WSM_BEACON_FILTER_ENABLE |
- WSM_BEACON_FILTER_AUTO_ERP;
- bf_ctrl.bcn_count = 0;
- bf_tbl.num = __cpu_to_le32(2);
- } else {
- bf_ctrl.enabled = WSM_BEACON_FILTER_ENABLE;
- bf_ctrl.bcn_count = 0;
- bf_tbl.num = __cpu_to_le32(3);
- }
-
- /* When acting as p2p client being connected to p2p GO, in order to
- * receive frames from a different p2p device, turn off bssid filter.
- *
- * WARNING: FW dependency!
- * This can only be used with FW WSM371 and its successors.
- * In that FW version even with bssid filter turned off,
- * device will block most of the unwanted frames.
- */
- if (is_p2p)
- bssid_filtering = false;
-
- ret = wsm_set_rx_filter(priv, &priv->rx_filter);
- if (!ret)
- ret = wsm_set_beacon_filter_table(priv, &bf_tbl);
- if (!ret)
- ret = wsm_beacon_filter_control(priv, &bf_ctrl);
- if (!ret)
- ret = wsm_set_bssid_filtering(priv, bssid_filtering);
- if (!ret)
- ret = wsm_set_multicast_filter(priv, &priv->multicast_filter);
- if (ret)
- wiphy_err(priv->hw->wiphy,
- "Update filtering failed: %d.\n", ret);
- return;
-}
-
-void cw1200_update_filtering_work(struct work_struct *work)
-{
- struct cw1200_common *priv =
- container_of(work, struct cw1200_common,
- update_filtering_work);
-
- cw1200_update_filtering(priv);
-}
-
-void cw1200_set_beacon_wakeup_period_work(struct work_struct *work)
-{
- struct cw1200_common *priv =
- container_of(work, struct cw1200_common,
- set_beacon_wakeup_period_work);
-
- wsm_set_beacon_wakeup_period(priv,
- priv->beacon_int * priv->join_dtim_period >
- MAX_BEACON_SKIP_TIME_MS ? 1 :
- priv->join_dtim_period, 0);
-}
-
-u64 cw1200_prepare_multicast(struct ieee80211_hw *hw,
- struct netdev_hw_addr_list *mc_list)
-{
- static u8 broadcast_ipv6[ETH_ALEN] = {
- 0x33, 0x33, 0x00, 0x00, 0x00, 0x01
- };
- static u8 broadcast_ipv4[ETH_ALEN] = {
- 0x01, 0x00, 0x5e, 0x00, 0x00, 0x01
- };
- struct cw1200_common *priv = hw->priv;
- struct netdev_hw_addr *ha;
- int count = 0;
-
- /* Disable multicast filtering */
- priv->has_multicast_subscription = false;
- memset(&priv->multicast_filter, 0x00, sizeof(priv->multicast_filter));
-
- if (netdev_hw_addr_list_count(mc_list) > WSM_MAX_GRP_ADDRTABLE_ENTRIES)
- return 0;
-
- /* Enable if requested */
- netdev_hw_addr_list_for_each(ha, mc_list) {
- pr_debug("[STA] multicast: %pM\n", ha->addr);
- memcpy(&priv->multicast_filter.macaddrs[count],
- ha->addr, ETH_ALEN);
- if (!ether_addr_equal(ha->addr, broadcast_ipv4) &&
- !ether_addr_equal(ha->addr, broadcast_ipv6))
- priv->has_multicast_subscription = true;
- count++;
- }
-
- if (count) {
- priv->multicast_filter.enable = __cpu_to_le32(1);
- priv->multicast_filter.num_addrs = __cpu_to_le32(count);
- }
-
- return netdev_hw_addr_list_count(mc_list);
-}
-
-void cw1200_configure_filter(struct ieee80211_hw *dev,
- unsigned int changed_flags,
- unsigned int *total_flags,
- u64 multicast)
-{
- struct cw1200_common *priv = dev->priv;
- bool listening = !!(*total_flags &
- (FIF_OTHER_BSS |
- FIF_BCN_PRBRESP_PROMISC |
- FIF_PROBE_REQ));
-
- *total_flags &= FIF_OTHER_BSS |
- FIF_FCSFAIL |
- FIF_BCN_PRBRESP_PROMISC |
- FIF_PROBE_REQ;
-
- down(&priv->scan.lock);
- mutex_lock(&priv->conf_mutex);
-
- priv->rx_filter.promiscuous = 0;
- priv->rx_filter.bssid = (*total_flags & (FIF_OTHER_BSS |
- FIF_PROBE_REQ)) ? 1 : 0;
- priv->rx_filter.fcs = (*total_flags & FIF_FCSFAIL) ? 1 : 0;
- priv->disable_beacon_filter = !(*total_flags &
- (FIF_BCN_PRBRESP_PROMISC |
- FIF_PROBE_REQ));
- if (priv->listening != listening) {
- priv->listening = listening;
- wsm_lock_tx(priv);
- cw1200_update_listening(priv, listening);
- wsm_unlock_tx(priv);
- }
- cw1200_update_filtering(priv);
- mutex_unlock(&priv->conf_mutex);
- up(&priv->scan.lock);
-}
-
-int cw1200_conf_tx(struct ieee80211_hw *dev, struct ieee80211_vif *vif,
- u16 queue, const struct ieee80211_tx_queue_params *params)
-{
- struct cw1200_common *priv = dev->priv;
- int ret = 0;
- /* To prevent re-applying PM request OID again and again*/
- bool old_uapsd_flags;
-
- mutex_lock(&priv->conf_mutex);
-
- if (queue < dev->queues) {
- old_uapsd_flags = le16_to_cpu(priv->uapsd_info.uapsd_flags);
-
- WSM_TX_QUEUE_SET(&priv->tx_queue_params, queue, 0, 0, 0);
- ret = wsm_set_tx_queue_params(priv,
- &priv->tx_queue_params.params[queue], queue);
- if (ret) {
- ret = -EINVAL;
- goto out;
- }
-
- WSM_EDCA_SET(&priv->edca, queue, params->aifs,
- params->cw_min, params->cw_max,
- params->txop, 0xc8,
- params->uapsd);
- ret = wsm_set_edca_params(priv, &priv->edca);
- if (ret) {
- ret = -EINVAL;
- goto out;
- }
-
- if (priv->mode == NL80211_IFTYPE_STATION) {
- ret = cw1200_set_uapsd_param(priv, &priv->edca);
- if (!ret && priv->setbssparams_done &&
- (priv->join_status == CW1200_JOIN_STATUS_STA) &&
- (old_uapsd_flags != le16_to_cpu(priv->uapsd_info.uapsd_flags)))
- ret = cw1200_set_pm(priv, &priv->powersave_mode);
- }
- } else {
- ret = -EINVAL;
- }
-
-out:
- mutex_unlock(&priv->conf_mutex);
- return ret;
-}
-
-int cw1200_get_stats(struct ieee80211_hw *dev,
- struct ieee80211_low_level_stats *stats)
-{
- struct cw1200_common *priv = dev->priv;
-
- memcpy(stats, &priv->stats, sizeof(*stats));
- return 0;
-}
-
-int cw1200_set_pm(struct cw1200_common *priv, const struct wsm_set_pm *arg)
-{
- struct wsm_set_pm pm = *arg;
-
- if (priv->uapsd_info.uapsd_flags != 0)
- pm.mode &= ~WSM_PSM_FAST_PS_FLAG;
-
- if (memcmp(&pm, &priv->firmware_ps_mode,
- sizeof(struct wsm_set_pm))) {
- priv->firmware_ps_mode = pm;
- return wsm_set_pm(priv, &pm);
- } else {
- return 0;
- }
-}
-
-int cw1200_set_key(struct ieee80211_hw *dev, enum set_key_cmd cmd,
- struct ieee80211_vif *vif, struct ieee80211_sta *sta,
- struct ieee80211_key_conf *key)
-{
- int ret = -EOPNOTSUPP;
- struct cw1200_common *priv = dev->priv;
- struct ieee80211_key_seq seq;
-
- mutex_lock(&priv->conf_mutex);
-
- if (cmd == SET_KEY) {
- u8 *peer_addr = NULL;
- int pairwise = (key->flags & IEEE80211_KEY_FLAG_PAIRWISE) ?
- 1 : 0;
- int idx = cw1200_alloc_key(priv);
- struct wsm_add_key *wsm_key = &priv->keys[idx];
-
- if (idx < 0) {
- ret = -EINVAL;
- goto finally;
- }
-
- if (sta)
- peer_addr = sta->addr;
-
- key->flags |= IEEE80211_KEY_FLAG_PUT_IV_SPACE |
- IEEE80211_KEY_FLAG_RESERVE_TAILROOM;
-
- switch (key->cipher) {
- case WLAN_CIPHER_SUITE_WEP40:
- case WLAN_CIPHER_SUITE_WEP104:
- if (key->keylen > 16) {
- cw1200_free_key(priv, idx);
- ret = -EINVAL;
- goto finally;
- }
-
- if (pairwise) {
- wsm_key->type = WSM_KEY_TYPE_WEP_PAIRWISE;
- memcpy(wsm_key->wep_pairwise.peer,
- peer_addr, ETH_ALEN);
- memcpy(wsm_key->wep_pairwise.keydata,
- &key->key[0], key->keylen);
- wsm_key->wep_pairwise.keylen = key->keylen;
- } else {
- wsm_key->type = WSM_KEY_TYPE_WEP_DEFAULT;
- memcpy(wsm_key->wep_group.keydata,
- &key->key[0], key->keylen);
- wsm_key->wep_group.keylen = key->keylen;
- wsm_key->wep_group.keyid = key->keyidx;
- }
- break;
- case WLAN_CIPHER_SUITE_TKIP:
- ieee80211_get_key_rx_seq(key, 0, &seq);
- if (pairwise) {
- wsm_key->type = WSM_KEY_TYPE_TKIP_PAIRWISE;
- memcpy(wsm_key->tkip_pairwise.peer,
- peer_addr, ETH_ALEN);
- memcpy(wsm_key->tkip_pairwise.keydata,
- &key->key[0], 16);
- memcpy(wsm_key->tkip_pairwise.tx_mic_key,
- &key->key[16], 8);
- memcpy(wsm_key->tkip_pairwise.rx_mic_key,
- &key->key[24], 8);
- } else {
- size_t mic_offset =
- (priv->mode == NL80211_IFTYPE_AP) ?
- 16 : 24;
- wsm_key->type = WSM_KEY_TYPE_TKIP_GROUP;
- memcpy(wsm_key->tkip_group.keydata,
- &key->key[0], 16);
- memcpy(wsm_key->tkip_group.rx_mic_key,
- &key->key[mic_offset], 8);
-
- wsm_key->tkip_group.rx_seqnum[0] = seq.tkip.iv16 & 0xff;
- wsm_key->tkip_group.rx_seqnum[1] = (seq.tkip.iv16 >> 8) & 0xff;
- wsm_key->tkip_group.rx_seqnum[2] = seq.tkip.iv32 & 0xff;
- wsm_key->tkip_group.rx_seqnum[3] = (seq.tkip.iv32 >> 8) & 0xff;
- wsm_key->tkip_group.rx_seqnum[4] = (seq.tkip.iv32 >> 16) & 0xff;
- wsm_key->tkip_group.rx_seqnum[5] = (seq.tkip.iv32 >> 24) & 0xff;
- wsm_key->tkip_group.rx_seqnum[6] = 0;
- wsm_key->tkip_group.rx_seqnum[7] = 0;
-
- wsm_key->tkip_group.keyid = key->keyidx;
- }
- break;
- case WLAN_CIPHER_SUITE_CCMP:
- ieee80211_get_key_rx_seq(key, 0, &seq);
- if (pairwise) {
- wsm_key->type = WSM_KEY_TYPE_AES_PAIRWISE;
- memcpy(wsm_key->aes_pairwise.peer,
- peer_addr, ETH_ALEN);
- memcpy(wsm_key->aes_pairwise.keydata,
- &key->key[0], 16);
- } else {
- wsm_key->type = WSM_KEY_TYPE_AES_GROUP;
- memcpy(wsm_key->aes_group.keydata,
- &key->key[0], 16);
-
- wsm_key->aes_group.rx_seqnum[0] = seq.ccmp.pn[5];
- wsm_key->aes_group.rx_seqnum[1] = seq.ccmp.pn[4];
- wsm_key->aes_group.rx_seqnum[2] = seq.ccmp.pn[3];
- wsm_key->aes_group.rx_seqnum[3] = seq.ccmp.pn[2];
- wsm_key->aes_group.rx_seqnum[4] = seq.ccmp.pn[1];
- wsm_key->aes_group.rx_seqnum[5] = seq.ccmp.pn[0];
- wsm_key->aes_group.rx_seqnum[6] = 0;
- wsm_key->aes_group.rx_seqnum[7] = 0;
- wsm_key->aes_group.keyid = key->keyidx;
- }
- break;
- case WLAN_CIPHER_SUITE_SMS4:
- if (pairwise) {
- wsm_key->type = WSM_KEY_TYPE_WAPI_PAIRWISE;
- memcpy(wsm_key->wapi_pairwise.peer,
- peer_addr, ETH_ALEN);
- memcpy(wsm_key->wapi_pairwise.keydata,
- &key->key[0], 16);
- memcpy(wsm_key->wapi_pairwise.mic_key,
- &key->key[16], 16);
- wsm_key->wapi_pairwise.keyid = key->keyidx;
- } else {
- wsm_key->type = WSM_KEY_TYPE_WAPI_GROUP;
- memcpy(wsm_key->wapi_group.keydata,
- &key->key[0], 16);
- memcpy(wsm_key->wapi_group.mic_key,
- &key->key[16], 16);
- wsm_key->wapi_group.keyid = key->keyidx;
- }
- break;
- default:
- pr_warn("Unhandled key type %d\n", key->cipher);
- cw1200_free_key(priv, idx);
- ret = -EOPNOTSUPP;
- goto finally;
- }
- ret = wsm_add_key(priv, wsm_key);
- if (!ret)
- key->hw_key_idx = idx;
- else
- cw1200_free_key(priv, idx);
- } else if (cmd == DISABLE_KEY) {
- struct wsm_remove_key wsm_key = {
- .index = key->hw_key_idx,
- };
-
- if (wsm_key.index > WSM_KEY_MAX_INDEX) {
- ret = -EINVAL;
- goto finally;
- }
-
- cw1200_free_key(priv, wsm_key.index);
- ret = wsm_remove_key(priv, &wsm_key);
- } else {
- pr_warn("Unhandled key command %d\n", cmd);
- }
-
-finally:
- mutex_unlock(&priv->conf_mutex);
- return ret;
-}
-
-void cw1200_wep_key_work(struct work_struct *work)
-{
- struct cw1200_common *priv =
- container_of(work, struct cw1200_common, wep_key_work);
- u8 queue_id = cw1200_queue_get_queue_id(priv->pending_frame_id);
- struct cw1200_queue *queue = &priv->tx_queue[queue_id];
- __le32 wep_default_key_id = __cpu_to_le32(
- priv->wep_default_key_id);
-
- pr_debug("[STA] Setting default WEP key: %d\n",
- priv->wep_default_key_id);
- wsm_flush_tx(priv);
- wsm_write_mib(priv, WSM_MIB_ID_DOT11_WEP_DEFAULT_KEY_ID,
- &wep_default_key_id, sizeof(wep_default_key_id));
- cw1200_queue_requeue(queue, priv->pending_frame_id);
- wsm_unlock_tx(priv);
-}
-
-int cw1200_set_rts_threshold(struct ieee80211_hw *hw, u32 value)
-{
- int ret = 0;
- __le32 val32;
- struct cw1200_common *priv = hw->priv;
-
- if (priv->mode == NL80211_IFTYPE_UNSPECIFIED)
- return 0;
-
- if (value != (u32) -1)
- val32 = __cpu_to_le32(value);
- else
- val32 = 0; /* disabled */
-
- if (priv->mode == NL80211_IFTYPE_UNSPECIFIED) {
- /* device is down, can _not_ set threshold */
- ret = -ENODEV;
- goto out;
- }
-
- if (priv->rts_threshold == value)
- goto out;
-
- pr_debug("[STA] Setting RTS threshold: %d\n",
- priv->rts_threshold);
-
- /* mutex_lock(&priv->conf_mutex); */
- ret = wsm_write_mib(priv, WSM_MIB_ID_DOT11_RTS_THRESHOLD,
- &val32, sizeof(val32));
- if (!ret)
- priv->rts_threshold = value;
- /* mutex_unlock(&priv->conf_mutex); */
-
-out:
- return ret;
-}
-
-/* If successful, LOCKS the TX queue! */
-static int __cw1200_flush(struct cw1200_common *priv, bool drop)
-{
- int i, ret;
-
- for (;;) {
- /* TODO: correct flush handling is required when dev_stop.
- * Temporary workaround: 2s
- */
- if (drop) {
- for (i = 0; i < 4; ++i)
- cw1200_queue_clear(&priv->tx_queue[i]);
- } else {
- ret = wait_event_timeout(
- priv->tx_queue_stats.wait_link_id_empty,
- cw1200_queue_stats_is_empty(
- &priv->tx_queue_stats, -1),
- 2 * HZ);
- }
-
- if (!drop && ret <= 0) {
- ret = -ETIMEDOUT;
- break;
- } else {
- ret = 0;
- }
-
- wsm_lock_tx(priv);
- if (!cw1200_queue_stats_is_empty(&priv->tx_queue_stats, -1)) {
- /* Highly unlikely: WSM requeued frames. */
- wsm_unlock_tx(priv);
- continue;
- }
- break;
- }
- return ret;
-}
-
-void cw1200_flush(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
- u32 queues, bool drop)
-{
- struct cw1200_common *priv = hw->priv;
-
- switch (priv->mode) {
- case NL80211_IFTYPE_MONITOR:
- drop = true;
- break;
- case NL80211_IFTYPE_AP:
- if (!priv->enable_beacon)
- drop = true;
- break;
- }
-
- if (!__cw1200_flush(priv, drop))
- wsm_unlock_tx(priv);
-
- return;
-}
-
-/* ******************************************************************** */
-/* WSM callbacks */
-
-void cw1200_free_event_queue(struct cw1200_common *priv)
-{
- LIST_HEAD(list);
-
- spin_lock(&priv->event_queue_lock);
- list_splice_init(&priv->event_queue, &list);
- spin_unlock(&priv->event_queue_lock);
-
- __cw1200_free_event_queue(&list);
-}
-
-void cw1200_event_handler(struct work_struct *work)
-{
- struct cw1200_common *priv =
- container_of(work, struct cw1200_common, event_handler);
- struct cw1200_wsm_event *event;
- LIST_HEAD(list);
-
- spin_lock(&priv->event_queue_lock);
- list_splice_init(&priv->event_queue, &list);
- spin_unlock(&priv->event_queue_lock);
-
- list_for_each_entry(event, &list, link) {
- switch (event->evt.id) {
- case WSM_EVENT_ERROR:
- pr_err("Unhandled WSM Error from LMAC\n");
- break;
- case WSM_EVENT_BSS_LOST:
- pr_debug("[CQM] BSS lost.\n");
- cancel_work_sync(&priv->unjoin_work);
- if (!down_trylock(&priv->scan.lock)) {
- cw1200_cqm_bssloss_sm(priv, 1, 0, 0);
- up(&priv->scan.lock);
- } else {
- /* Scan is in progress. Delay reporting.
- * Scan complete will trigger bss_loss_work
- */
- priv->delayed_link_loss = 1;
- /* Also start a watchdog. */
- queue_delayed_work(priv->workqueue,
- &priv->bss_loss_work, 5*HZ);
- }
- break;
- case WSM_EVENT_BSS_REGAINED:
- pr_debug("[CQM] BSS regained.\n");
- cw1200_cqm_bssloss_sm(priv, 0, 0, 0);
- cancel_work_sync(&priv->unjoin_work);
- break;
- case WSM_EVENT_RADAR_DETECTED:
- wiphy_info(priv->hw->wiphy, "radar pulse detected\n");
- break;
- case WSM_EVENT_RCPI_RSSI:
- {
- /* RSSI: signed Q8.0, RCPI: unsigned Q7.1
- * RSSI = RCPI / 2 - 110
- */
- int rcpi_rssi = (int)(event->evt.data & 0xFF);
- int cqm_evt;
- if (priv->cqm_use_rssi)
- rcpi_rssi = (s8)rcpi_rssi;
- else
- rcpi_rssi = rcpi_rssi / 2 - 110;
-
- cqm_evt = (rcpi_rssi <= priv->cqm_rssi_thold) ?
- NL80211_CQM_RSSI_THRESHOLD_EVENT_LOW :
- NL80211_CQM_RSSI_THRESHOLD_EVENT_HIGH;
- pr_debug("[CQM] RSSI event: %d.\n", rcpi_rssi);
- ieee80211_cqm_rssi_notify(priv->vif, cqm_evt,
- GFP_KERNEL);
- break;
- }
- case WSM_EVENT_BT_INACTIVE:
- pr_warn("Unhandled BT INACTIVE from LMAC\n");
- break;
- case WSM_EVENT_BT_ACTIVE:
- pr_warn("Unhandled BT ACTIVE from LMAC\n");
- break;
- }
- }
- __cw1200_free_event_queue(&list);
-}
-
-void cw1200_bss_loss_work(struct work_struct *work)
-{
- struct cw1200_common *priv =
- container_of(work, struct cw1200_common, bss_loss_work.work);
-
- pr_debug("[CQM] Reporting connection loss.\n");
- wsm_lock_tx(priv);
- if (queue_work(priv->workqueue, &priv->unjoin_work) <= 0)
- wsm_unlock_tx(priv);
-}
-
-void cw1200_bss_params_work(struct work_struct *work)
-{
- struct cw1200_common *priv =
- container_of(work, struct cw1200_common, bss_params_work);
- mutex_lock(&priv->conf_mutex);
-
- priv->bss_params.reset_beacon_loss = 1;
- wsm_set_bss_params(priv, &priv->bss_params);
- priv->bss_params.reset_beacon_loss = 0;
-
- mutex_unlock(&priv->conf_mutex);
-}
-
-/* ******************************************************************** */
-/* Internal API */
-
-/* This function is called to Parse the S