This implements most of the mac80211 API.
Signed-off-by: Solomon Peachy <pizza@xxxxxxxxxxxx>
---
drivers/staging/cw1200/sta.c | 1630 ++++++++++++++++++++++++++++++++++++++++++
drivers/staging/cw1200/sta.h | 87 +++
2 files changed, 1717 insertions(+)
create mode 100644 drivers/staging/cw1200/sta.c
create mode 100644 drivers/staging/cw1200/sta.h
diff --git a/drivers/staging/cw1200/sta.c b/drivers/staging/cw1200/sta.c
new file mode 100644
index 0000000..26b0a1a
--- /dev/null
+++ b/drivers/staging/cw1200/sta.c
@@ -0,0 +1,1630 @@
+/*
+ * Mac80211 STA API for ST-Ericsson CW1200 drivers
+ *
+ * Copyright (c) 2010, ST-Ericsson
+ * Author: Dmitry Tarnyagin <dmitry.tarnyagin@xxxxxxxxxxxxxx>
+ *
+ * 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 "cw1200.h"
+#include "sta.h"
+#include "ap.h"
+#include "fwio.h"
+#include "bh.h"
+#include "debug.h"
+
+#if defined(CONFIG_CW1200_STA_DEBUG)
+#define sta_printk(...) printk(__VA_ARGS__)
+#else
+#define sta_printk(...)
+#endif
+
+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;
+
+ 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 (WARN_ON(ret))
+ goto out;
+
+ ret = cw1200_set_uapsd_param(priv, &priv->edca);
+ if (WARN_ON(ret))
+ goto out;
+
+ priv->setbssparams_done = false;
+
+ memset(priv->bssid, ~0, ETH_ALEN);
+ memcpy(priv->mac_addr, dev->wiphy->perm_addr, ETH_ALEN);
+ priv->mode = NL80211_IFTYPE_MONITOR;
+ priv->softled_state = 0;
+ priv->wep_default_key_id = -1;
+
+ priv->cqm_link_loss_count = 60;
+ priv->cqm_beacon_loss_count = 20;
+
+ /* Temporary configuration - beacon filter table */
+ priv->bf_table.numOfIEs = __cpu_to_le32(3);
+ priv->bf_table.entry[0].ieId = WLAN_EID_VENDOR_SPECIFIC;
+ priv->bf_table.entry[0].actionFlags = WSM_BEACON_FILTER_IE_HAS_CHANGED |
+ WSM_BEACON_FILTER_IE_NO_LONGER_PRESENT |
+ WSM_BEACON_FILTER_IE_HAS_APPEARED;
+ priv->bf_table.entry[0].oui[0] = 0x50;
+ priv->bf_table.entry[0].oui[1] = 0x6F;
+ priv->bf_table.entry[0].oui[2] = 0x9A;
+ priv->bf_table.entry[1].ieId = WLAN_EID_ERP_INFO;
+ priv->bf_table.entry[1].actionFlags = WSM_BEACON_FILTER_IE_HAS_CHANGED |
+ WSM_BEACON_FILTER_IE_NO_LONGER_PRESENT |
+ WSM_BEACON_FILTER_IE_HAS_APPEARED;
+ priv->bf_table.entry[2].ieId = WLAN_EID_HT_OPERATION;
+ priv->bf_table.entry[2].actionFlags = WSM_BEACON_FILTER_IE_HAS_CHANGED |
+ WSM_BEACON_FILTER_IE_NO_LONGER_PRESENT |
+ WSM_BEACON_FILTER_IE_HAS_APPEARED;
+
+ priv->bf_control.enabled = 1;
+ ret = cw1200_setup_mac(priv);
+ if (WARN_ON(ret))
+ goto out;
+
+ /* err = cw1200_set_leds(priv); */
+
+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->join_timeout);
+ cancel_delayed_work_sync(&priv->bss_loss_work);
+ cancel_delayed_work_sync(&priv->connection_loss_work);
+ cancel_delayed_work_sync(&priv->link_id_gc_work);
+ flush_workqueue(priv->workqueue);
+ del_timer_sync(&priv->mcast_timeout);
+ del_timer_sync(&priv->ba_timer);
+ mutex_lock(&priv->conf_mutex);
+ priv->mode = NL80211_IFTYPE_UNSPECIFIED;
+ priv->listening = false;
+
+ priv->softled_state = 0;
+ /* cw1200_set_leds(priv); */
+
+ 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->delayed_link_loss = 0;
+
+ priv->join_status = CW1200_JOIN_STATUS_PASSIVE;
+
+ for (i = 0; i < 4; i++)
+ cw1200_queue_clear(&priv->tx_queue[i]);
+
+ /* HACK! */
+ if (atomic_xchg(&priv->tx_lock, 1) != 1)
+ sta_printk(KERN_DEBUG "[STA] TX is force-unlocked "
+ "due to stop request.\n");
+
+ wsm_unlock_tx(priv);
+
+ mutex_unlock(&priv->conf_mutex);
+}
+
+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_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 = WARN_ON(cw1200_setup_mac(priv));
+ /* Enable auto-calibration */
+ /* Exception in subsequent channel switch; disabled.
+ WARN_ON(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);
+ wsm_lock_tx(priv);
+ switch (priv->join_status) {
+ case CW1200_JOIN_STATUS_STA:
+ 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;
+ memset(priv->mac_addr, 0, ETH_ALEN);
+ memset(priv->bssid, 0, ETH_ALEN);
+ 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);
+ wsm_unlock_tx(priv);
+
+ mutex_unlock(&priv->conf_mutex);
+}
+
+int cw1200_config(struct ieee80211_hw *dev, u32 changed)
+{
+ int ret = 0;
+ struct cw1200_common *priv = dev->priv;
+ struct ieee80211_conf *conf = &dev->conf;
+
+ down(&priv->scan.lock);
+ mutex_lock(&priv->conf_mutex);
+ /* TODO: IEEE80211_CONF_CHANGE_QOS */
+ if (changed & IEEE80211_CONF_CHANGE_POWER) {
+ priv->output_power = conf->power_level;
+ sta_printk(KERN_DEBUG "[STA] TX power: %d\n",
+ priv->output_power);
+ WARN_ON(wsm_set_output_power(priv, priv->output_power * 10));
+ }
+
+ if ((changed & IEEE80211_CONF_CHANGE_CHANNEL) &&
+ (priv->channel != conf->channel)) {
+ struct ieee80211_channel *ch = conf->channel;
+ struct wsm_switch_channel channel = {
+ .newChannelNumber = ch->hw_value,
+ };
+ sta_printk(KERN_DEBUG "[STA] Freq %d (wsm ch: %d).\n",
+ ch->center_freq, ch->hw_value);
+
+ ret = WARN_ON(__cw1200_flush(priv, false));
+ if (!ret) {
+ ret = WARN_ON(wsm_switch_channel(priv, &channel));
+ if (!ret) {
+ ret = wait_event_timeout(
+ priv->channel_switch_done,
+ !priv->channel_switch_in_progress,
+ 3 * HZ);
+ /* TODO: We should check also switch channel
+ * complete indication
+ */
+ if (ret) {
+ priv->channel = ch;
+ ret = 0;
+ } else
+ ret = -ETIMEDOUT;
+ } else
+ wsm_unlock_tx(priv);
+ }
+ }
+
+ if (changed & IEEE80211_CONF_CHANGE_PS) {
+ if (!(conf->flags & IEEE80211_CONF_PS))
+ priv->powersave_mode.pmMode = WSM_PSM_ACTIVE;
+ else if (conf->dynamic_ps_timeout <= 0)
+ priv->powersave_mode.pmMode = WSM_PSM_PS;
+ else
+ priv->powersave_mode.pmMode = 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.fastPsmIdlePeriod = 0xFF;
+ else
+ priv->powersave_mode.fastPsmIdlePeriod =
+ 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 defined(CONFIG_CW1200_USE_STE_EXTENSIONS)
+ if (changed & IEEE80211_CONF_CHANGE_P2P_PS) {
+ struct wsm_p2p_ps_modeinfo *modeinfo;
+ modeinfo = &priv->p2p_ps_modeinfo;
+ sta_printk(KERN_DEBUG "[STA] IEEE80211_CONF_CHANGE_P2P_PS\n");
+ sta_printk(KERN_DEBUG "[STA] Legacy PS: %d for AID %d "
+ "in %d mode.\n", conf->p2p_ps.legacy_ps,
+ priv->bss_params.aid, priv->join_status);
+
+ if (conf->p2p_ps.legacy_ps >= 0) {
+ if (conf->p2p_ps.legacy_ps > 0)
+ priv->powersave_mode.pmMode = WSM_PSM_PS;
+ else
+ priv->powersave_mode.pmMode = WSM_PSM_ACTIVE;
+
+ if (priv->join_status == CW1200_JOIN_STATUS_STA)
+ cw1200_set_pm(priv, &priv->powersave_mode);
+ }
+
+ sta_printk(KERN_DEBUG "[STA] CTWindow: %d\n",
+ conf->p2p_ps.ctwindow);
+ if (conf->p2p_ps.ctwindow >= 128)
+ modeinfo->oppPsCTWindow = 127;
+ else if (conf->p2p_ps.ctwindow >= 0)
+ modeinfo->oppPsCTWindow = conf->p2p_ps.ctwindow;
+
+ sta_printk(KERN_DEBUG "[STA] Opportunistic: %d\n",
+ conf->p2p_ps.opp_ps);
+ switch (conf->p2p_ps.opp_ps) {
+ case 0:
+ modeinfo->oppPsCTWindow &= ~(BIT(7));
+ break;
+ case 1:
+ modeinfo->oppPsCTWindow |= BIT(7);
+ break;
+ default:
+ break;
+ }
+
+ sta_printk(KERN_DEBUG "[STA] NOA: %d, %d, %d, %d\n",
+ conf->p2p_ps.count,
+ conf->p2p_ps.start,
+ conf->p2p_ps.duration,
+ conf->p2p_ps.interval);
+ /* Notice of Absence */
+ modeinfo->count = conf->p2p_ps.count;
+
+ if (conf->p2p_ps.count) {
+ /* In case P2P_GO we need some extra time to be sure
+ * we will update beacon/probe_resp IEs correctly */
+#define NOA_DELAY_START_MS 300
+ if (priv->join_status == CW1200_JOIN_STATUS_AP)
+ modeinfo->startTime =
+ __cpu_to_le32(conf->p2p_ps.start +
+ NOA_DELAY_START_MS);
+ else
+ modeinfo->startTime =
+ __cpu_to_le32(conf->p2p_ps.start);
+ modeinfo->duration =
+ __cpu_to_le32(conf->p2p_ps.duration);
+ modeinfo->interval =
+ __cpu_to_le32(conf->p2p_ps.interval);
+ modeinfo->dtimCount = 1;
+ modeinfo->reserved = 0;
+ } else {
+ modeinfo->dtimCount = 0;
+ modeinfo->startTime = 0;
+ modeinfo->reserved = 0;
+ modeinfo->duration = 0;
+ modeinfo->interval = 0;
+ }
+
+#if defined(CONFIG_CW1200_STA_DEBUG)
+ print_hex_dump_bytes("p2p_set_ps_modeinfo: ",
+ DUMP_PREFIX_NONE,
+ (u8 *)modeinfo,
+ sizeof(*modeinfo));
+#endif /* CONFIG_CW1200_STA_DEBUG */
+ if (priv->join_status == CW1200_JOIN_STATUS_STA ||
+ priv->join_status == CW1200_JOIN_STATUS_AP) {
+ WARN_ON(wsm_set_p2p_ps_modeinfo(priv, modeinfo));
+ }
+
+ /* Temporary solution while firmware don't support NOA change
+ * notification yet */
+ cw1200_notify_noa(priv, 10);
+ }
+#endif /* CONFIG_CW1200_USE_STE_EXTENSIONS */
+
+ 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,
+ .disableMoreFlagUsage = 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;
+ }
+ WARN_ON(wsm_set_operational_mode(priv, &mode));
+ wsm_unlock_tx(priv);
+ }
+
+ if (changed & IEEE80211_CONF_CHANGE_RETRY_LIMITS) {
+ sta_printk(KERN_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);
+ /* TBD: I think we don't need tx_policy_force_upload().
+ * Outdated policies will leave cache in a normal way. */
+ /* WARN_ON(tx_policy_force_upload(priv)); */
+ }
+ 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;
+ static struct wsm_beacon_filter_control bf_disabled = {
+ .enabled = 0,
+ .bcn_count = 1,
+ };
+
+ if (priv->join_status == CW1200_JOIN_STATUS_PASSIVE)
+ return;
+ else if (priv->join_status == CW1200_JOIN_STATUS_MONITOR)
+ bssid_filtering = false;
+
+ /*
+ * 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 (priv->vif->p2p)
+ bssid_filtering = false;
+
+ ret = wsm_set_rx_filter(priv, &priv->rx_filter);
+ if (!ret)
+ ret = wsm_set_beacon_filter_table(priv, &priv->bf_table);
+ if (!ret) {
+ if (priv->disable_beacon_filter)
+ ret = wsm_beacon_filter_control(priv,
+ &bf_disabled);
+ else
+ ret = wsm_beacon_filter_control(priv,
+ &priv->bf_control);
+ }
+ 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,
+ "%s: Update filtering failed: %d.\n",
+ __func__, 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);
+}
+
+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) {
+ sta_printk(KERN_DEBUG "[STA] multicast: %pM\n", ha->addr);
+ memcpy(&priv->multicast_filter.macAddress[count],
+ ha->addr, ETH_ALEN);
+ if (memcmp(ha->addr, broadcast_ipv4, ETH_ALEN) &&
+ memcmp(ha->addr, broadcast_ipv6, ETH_ALEN))
+ priv->has_multicast_subscription = true;
+ count++;
+ }
+
+ if (count) {
+ priv->multicast_filter.enable = __cpu_to_le32(1);
+ priv->multicast_filter.numOfAddresses = __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_PROMISC_IN_BSS |
+ FIF_OTHER_BSS |
+ FIF_BCN_PRBRESP_PROMISC |
+ FIF_PROBE_REQ));
+
+ *total_flags &= FIF_PROMISC_IN_BSS |
+ 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 = (*total_flags & FIF_PROMISC_IN_BSS)
+ ? 1 : 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->bf_control.bcn_count = (*total_flags &
+ (FIF_BCN_PRBRESP_PROMISC |
+ FIF_PROMISC_IN_BSS |
+ FIF_PROBE_REQ)) ? 1 : 0;
+ 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_uapsdFlags;
+
+ mutex_lock(&priv->conf_mutex);
+
+ if (queue < dev->queues) {
+ old_uapsdFlags = priv->uapsd_info.uapsdFlags;
+
+ 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_uapsdFlags != priv->uapsd_info.uapsdFlags))
+ 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_get_tx_stats(struct ieee80211_hw *dev,
+ struct ieee80211_tx_queue_stats *stats)
+{
+ int i;
+ struct cw1200_common *priv = dev->priv;
+
+ for (i = 0; i < dev->queues; ++i)
+ cw1200_queue_get_stats(&priv->tx_queue[i], &stats[i]);
+
+ 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.uapsdFlags != 0)
+ pm.pmMode &= ~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;
+
+ 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;
+ }
+
+ BUG_ON(pairwise && !sta);
+ if (sta)
+ peer_addr = sta->addr;
+
+ key->flags |= IEEE80211_KEY_FLAG_PUT_IV_SPACE;
+
+ 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->wepPairwiseKey.peerAddress,
+ peer_addr, ETH_ALEN);
+ memcpy(wsm_key->wepPairwiseKey.keyData,
+ &key->key[0], key->keylen);
+ wsm_key->wepPairwiseKey.keyLength = key->keylen;
+ } else {
+ wsm_key->type = WSM_KEY_TYPE_WEP_DEFAULT;
+ memcpy(wsm_key->wepGroupKey.keyData,
+ &key->key[0], key->keylen);
+ wsm_key->wepGroupKey.keyLength = key->keylen;
+ wsm_key->wepGroupKey.keyId = key->keyidx;
+ }
+ break;
+ case WLAN_CIPHER_SUITE_TKIP:
+ if (pairwise) {
+ wsm_key->type = WSM_KEY_TYPE_TKIP_PAIRWISE;
+ memcpy(wsm_key->tkipPairwiseKey.peerAddress,
+ peer_addr, ETH_ALEN);
+ memcpy(wsm_key->tkipPairwiseKey.tkipKeyData,
+ &key->key[0], 16);
+ memcpy(wsm_key->tkipPairwiseKey.txMicKey,
+ &key->key[16], 8);
+ memcpy(wsm_key->tkipPairwiseKey.rxMicKey,
+ &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->tkipGroupKey.tkipKeyData,
+ &key->key[0], 16);
+ memcpy(wsm_key->tkipGroupKey.rxMicKey,
+ &key->key[mic_offset], 8);
+
+ /* TODO: Where can I find TKIP SEQ? */
+ memset(wsm_key->tkipGroupKey.rxSeqCounter,
+ 0, 8);
+ wsm_key->tkipGroupKey.keyId = key->keyidx;
+ }
+ break;
+ case WLAN_CIPHER_SUITE_CCMP:
+ if (pairwise) {
+ wsm_key->type = WSM_KEY_TYPE_AES_PAIRWISE;
+ memcpy(wsm_key->aesPairwiseKey.peerAddress,
+ peer_addr, ETH_ALEN);
+ memcpy(wsm_key->aesPairwiseKey.aesKeyData,
+ &key->key[0], 16);
+ } else {
+ wsm_key->type = WSM_KEY_TYPE_AES_GROUP;
+ memcpy(wsm_key->aesGroupKey.aesKeyData,
+ &key->key[0], 16);
+ /* TODO: Where can I find AES SEQ? */
+ memset(wsm_key->aesGroupKey.rxSeqCounter,
+ 0, 8);
+ wsm_key->aesGroupKey.keyId = key->keyidx;
+ }
+ break;
+#ifdef CONFIG_CW1200_WAPI_SUPPORT
+ case WLAN_CIPHER_SUITE_SMS4:
+ if (pairwise) {
+ wsm_key->type = WSM_KEY_TYPE_WAPI_PAIRWISE;
+ memcpy(wsm_key->wapiPairwiseKey.peerAddress,
+ peer_addr, ETH_ALEN);
+ memcpy(wsm_key->wapiPairwiseKey.wapiKeyData,
+ &key->key[0], 16);
+ memcpy(wsm_key->wapiPairwiseKey.micKeyData,
+ &key->key[16], 16);
+ wsm_key->wapiPairwiseKey.keyId = key->keyidx;
+ } else {
+ wsm_key->type = WSM_KEY_TYPE_WAPI_GROUP;
+ memcpy(wsm_key->wapiGroupKey.wapiKeyData,
+ &key->key[0], 16);
+ memcpy(wsm_key->wapiGroupKey.micKeyData,
+ &key->key[16], 16);
+ wsm_key->wapiGroupKey.keyId = key->keyidx;
+ }
+ break;
+#endif /* CONFIG_CW1200_WAPI_SUPPORT */
+ default:
+ WARN_ON(1);
+ cw1200_free_key(priv, idx);
+ ret = -EOPNOTSUPP;
+ goto finally;
+ }
+ ret = WARN_ON(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 = {
+ .entryIndex = key->hw_key_idx,
+ };
+
+ if (wsm_key.entryIndex > WSM_KEY_MAX_INDEX) {
+ ret = -EINVAL;
+ goto finally;
+ }
+
+ cw1200_free_key(priv, wsm_key.entryIndex);
+ ret = wsm_remove_key(priv, &wsm_key);
+ } else {
+ BUG_ON("Unsupported command");
+ }
+
+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 queueId = cw1200_queue_get_queue_id(priv->pending_frame_id);
+ struct cw1200_queue *queue = &priv->tx_queue[queueId];
+ __le32 wep_default_key_id = __cpu_to_le32(
+ priv->wep_default_key_id);
+
+ BUG_ON(queueId >= 4);
+
+ sta_printk(KERN_DEBUG "[STA] Setting default WEP key: %d\n",
+ priv->wep_default_key_id);
+ wsm_flush_tx(priv);
+ WARN_ON(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;
+ __le32 val32;
+
+ if (value != (u32) -1)
+ val32 = __cpu_to_le32(value);
+ else
+ val32 = 0; /* disabled */
+
+ /* mutex_lock(&priv->conf_mutex); */
+ ret = WARN_ON(wsm_write_mib(hw->priv, WSM_MIB_ID_DOT11_RTS_THRESHOLD,
+ &val32, sizeof(val32)));
+ /* mutex_unlock(&priv->conf_mutex); */
+ return ret;
+}
+
+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 && unlikely(ret <= 0)) {
+ ret = -ETIMEDOUT;
+ break;
+ } else {
+ ret = 0;
+ }
+
+ wsm_lock_tx(priv);
+ if (unlikely(!cw1200_queue_stats_is_empty(
+ &priv->tx_queue_stats, -1))) {
+ /* Highly unlekely: WSM requeued frames. */
+ wsm_unlock_tx(priv);
+ continue;
+ }
+ break;
+ }
+ return ret;
+}
+
+void cw1200_flush(struct ieee80211_hw *hw, 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 (!WARN_ON(__cw1200_flush(priv, drop)))
+ wsm_unlock_tx(priv);
+
+ return;
+}
+
+/* ******************************************************************** */
+/* WSM callbacks */
+
+void cw1200_channel_switch_cb(struct cw1200_common *priv)
+{
+ wsm_unlock_tx(priv);
+}
+
+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.eventId) {
+ case WSM_EVENT_ERROR:
+ /* I even don't know what is it about.. */
+ STUB();
+ break;
+ case WSM_EVENT_BSS_LOST:
+ {
+ spin_lock(&priv->bss_loss_lock);
+ if (priv->bss_loss_status > CW1200_BSS_LOSS_NONE) {
+ spin_unlock(&priv->bss_loss_lock);
+ break;
+ }
+ priv->bss_loss_status = CW1200_BSS_LOSS_CHECKING;
+ spin_unlock(&priv->bss_loss_lock);
+
+ sta_printk(KERN_DEBUG "[CQM] BSS lost.\n");
+ cancel_delayed_work_sync(&priv->bss_loss_work);
+ cancel_delayed_work_sync(&priv->connection_loss_work);
+ if (!down_trylock(&priv->scan.lock)) {
+ up(&priv->scan.lock);
+ priv->delayed_link_loss = 0;
+ queue_delayed_work(priv->workqueue,
+ &priv->bss_loss_work, 0);
+ } else {
+ /* Scan is in progress. Delay reporting. */
+ /* Scan complete will trigger bss_loss_work */
+ priv->delayed_link_loss = 1;
+ /* Also we're starting watchdog. */
+ queue_delayed_work(priv->workqueue,
+ &priv->bss_loss_work, 10 * HZ);
+ }
+ break;
+ }
+ case WSM_EVENT_BSS_REGAINED:
+ {
+ sta_printk(KERN_DEBUG "[CQM] BSS regained.\n");
+ priv->delayed_link_loss = 0;
+ spin_lock(&priv->bss_loss_lock);
+ priv->bss_loss_status = CW1200_BSS_LOSS_NONE;
+ spin_unlock(&priv->bss_loss_lock);
+ cancel_delayed_work_sync(&priv->bss_loss_work);
+ cancel_delayed_work_sync(&priv->connection_loss_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 rcpiRssi = (int)(event->evt.eventData & 0xFF);
+ int cqm_evt;
+ if (priv->cqm_use_rssi)
+ rcpiRssi = (s8)rcpiRssi;
+ else
+ rcpiRssi = rcpiRssi / 2 - 110;
+
+ cqm_evt = (rcpiRssi <= priv->cqm_rssi_thold) ?
+ NL80211_CQM_RSSI_THRESHOLD_EVENT_LOW :
+ NL80211_CQM_RSSI_THRESHOLD_EVENT_HIGH;
+ sta_printk(KERN_DEBUG "[CQM] RSSI event: %d.\n", rcpiRssi);
+ ieee80211_cqm_rssi_notify(priv->vif, cqm_evt,
+ GFP_KERNEL);
+ break;
+ }
+ case WSM_EVENT_BT_INACTIVE:
+ STUB();
+ break;
+ case WSM_EVENT_BT_ACTIVE:
+ STUB();
+ 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);
+ int timeout; /* in beacons */
+ struct sk_buff *skb;
+
+ timeout = priv->cqm_link_loss_count -
+ priv->cqm_beacon_loss_count;
+
+ /* Skip the confimration procedure in P2P case */
+ if (priv->vif->p2p)
+ goto report;
+
+ spin_lock(&priv->bss_loss_lock);
+ if (priv->bss_loss_status == CW1200_BSS_LOSS_CHECKING) {
+ spin_unlock(&priv->bss_loss_lock);
+ skb = ieee80211_nullfunc_get(priv->hw, priv->vif);
+ if (!(WARN_ON(!skb))) {
+ cw1200_tx(priv->hw, skb);
+ /* Start watchdog -- if nullfunc TX doesn't fail
+ * in 1 sec, forward event to upper layers */
+ queue_delayed_work(priv->workqueue,
+ &priv->bss_loss_work, 1 * HZ);
+ }
+ return;
+ } else if (priv->bss_loss_status == CW1200_BSS_LOSS_CONFIRMING) {
+ priv->bss_loss_status = CW1200_BSS_LOSS_NONE;
+ spin_unlock(&priv->bss_loss_lock);
+ return;
+ }
+ spin_unlock(&priv->bss_loss_lock);
+
+report:
+ if (priv->cqm_beacon_loss_count) {
+ sta_printk(KERN_DEBUG "[CQM] Beacon loss.\n");
+ if (timeout <= 0)
+ timeout = 0;
+#if defined(CONFIG_CW1200_USE_STE_EXTENSIONS)
+ ieee80211_cqm_beacon_miss_notify(priv->vif, GFP_KERNEL);
+#else
+ // ieee80211_beacon_loss(priv->vif); not with IEEE80211_HW_CONNECTION_MONITOR
+#endif /* CONFIG_CW1200_USE_STE_EXTENSIONS */
+ } else {
+ timeout = 0;
+ }
+
+ // XXX why do we go through this? why not just directly call ieee..connection_loss()?
+ cancel_delayed_work_sync(&priv->connection_loss_work);
+ queue_delayed_work(priv->workqueue,
+ &priv->connection_loss_work,
+ timeout * HZ / 10);
+
+ spin_lock(&priv->bss_loss_lock);
+ priv->bss_loss_status = CW1200_BSS_LOSS_NONE;
+ spin_unlock(&priv->bss_loss_lock);
+}
+
+void cw1200_connection_loss_work(struct work_struct *work)
+{
+ struct cw1200_common *priv =
+ container_of(work, struct cw1200_common,
+ connection_loss_work.work);
+ sta_printk(KERN_DEBUG "[CQM] Reporting connection loss.\n");
+ ieee80211_connection_loss(priv->vif);
+}
+
+#if defined(CONFIG_CW1200_USE_STE_EXTENSIONS)
+void cw1200_tx_failure_work(struct work_struct *work)
+{
+ struct cw1200_common *priv =
+ container_of(work, struct cw1200_common, tx_failure_work);
+ sta_printk(KERN_DEBUG "[CQM] Reporting TX failure.\n");
+ ieee80211_cqm_tx_fail_notify(priv->vif, GFP_KERNEL);
+}
+#endif /* CONFIG_CW1200_USE_STE_EXTENSIONS */
+
+/* ******************************************************************** */
+/* Internal API */
+
+/*
+ * This function is called to Parse the SDD file
+ * to extract listen_interval and PTA related information
+*/
+static int cw1200_parse_SDD_file(struct cw1200_common *priv)
+{
+ u8 *sdd_data = (u8 *)priv->sdd->data;
+ struct cw1200_sdd {
+ u8 id ;
+ u8 length ;
+ u8 data[] ;
+ } *pElement;
+ int parsedLength = 0;
+ #define FIELD_OFFSET(type, field) ((u8 *)&((type *)0)->field - (u8 *)0)
+
+ priv->is_BT_Present = false;
+
+ pElement = (struct cw1200_sdd *)sdd_data;
+
+ pElement = (struct cw1200_sdd *)((u8 *)pElement +
+ FIELD_OFFSET(struct cw1200_sdd, data) + pElement->length);
+
+ parsedLength += (FIELD_OFFSET(struct cw1200_sdd, data) +
+ pElement->length);
+
+ while (parsedLength <= priv->sdd->size) {
+ switch (pElement->id) {
+ case SDD_PTA_CFG_ELT_ID:
+ if (*pElement->data) { /* non-zero means enabled */
+ priv->conf_listen_interval =
+ (*((u16 *)pElement->data+1) >> 7) & 0x1F;
+ priv->is_BT_Present = true;
+ sta_printk(KERN_DEBUG "PTA element found.\n");
+ sta_printk(KERN_DEBUG "Listen Interval %d\n",
+ priv->conf_listen_interval);
+ }
+ break;
+ case SDD_REFERENCE_FREQUENCY_ELT_ID: {
+ u16 clk = cpu_to_le16(*((u16*)pElement->data));
+ if (clk != priv->hw_refclk) {
+ printk(KERN_WARNING "SDD file doesn't match configured refclk (%d vs %d)\n",
+ priv->hw_refclk, clk);
+ }
+ break;
+ }
+ default:
+ break;
+ }
+
+ pElement = (struct cw1200_sdd *)
+ ((u8 *)pElement + FIELD_OFFSET(struct cw1200_sdd, data)
+ + pElement->length);
+ parsedLength += (FIELD_OFFSET(struct cw1200_sdd, data) + pElement->length);
+ }
+
+ if (priv->is_BT_Present == false) {
+ sta_printk(KERN_DEBUG "PTA element NOT found.\n");
+ priv->conf_listen_interval = 0;
+ }
+ return 0;
+
+ #undef SDD_PTA_CFG_ELT_ID
+ #undef FIELD_OFFSET
+}
+
+
+int cw1200_setup_mac(struct cw1200_common *priv)
+{
+ int ret = 0;
+
+ /* NOTE: There is a bug in FW: it reports signal
+ * as RSSI if RSSI subscription is enabled.
+ * It's not enough to set WSM_RCPI_RSSI_USE_RSSI. */
+ /* NOTE2: RSSI based reports have been switched to RCPI, since
+ * FW has a bug and RSSI reported values are not stable,
+ * what can leads to signal level oscilations in user-end applications */
+ struct wsm_rcpi_rssi_threshold threshold = {
+ .rssiRcpiMode = WSM_RCPI_RSSI_THRESHOLD_ENABLE |
+ WSM_RCPI_RSSI_DONT_USE_UPPER |
+ WSM_RCPI_RSSI_DONT_USE_LOWER,
+ .rollingAverageCount = 16,
+ };
+
+ struct wsm_configuration cfg = {
+ .dot11StationId = &priv->mac_addr[0],
+ };
+
+ /* Remember the decission here to make sure, we will handle
+ * the RCPI/RSSI value correctly on WSM_EVENT_RCPI_RSS */
+ if (threshold.rssiRcpiMode & WSM_RCPI_RSSI_USE_RSSI)
+ priv->cqm_use_rssi = true;
+
+ if (!priv->sdd) {
+ ret = request_firmware(&priv->sdd,
+ priv->sdd_path, priv->pdev);
+
+ if (unlikely(ret)) {
+ printk(KERN_ERR
+ "%s: can't load sdd file %s.\n",
+ __func__, priv->sdd_path);
+ return ret;
+ }
+ /* Parse SDD file for PTA element */
+ cw1200_parse_SDD_file(priv);
+ }
+
+ cfg.dpdData = priv->sdd->data;
+ cfg.dpdData_size = priv->sdd->size;
+ ret = WARN_ON(wsm_configuration(priv, &cfg));
+ if (ret)
+ return ret;
+
+ /* Configure RSSI/SCPI reporting as RSSI. */
+ WARN_ON(wsm_set_rcpi_rssi_threshold(priv, &threshold));
+
+ /* TODO: */
+ switch (priv->mode) {
+ case NL80211_IFTYPE_STATION:
+ case NL80211_IFTYPE_MONITOR:
+ case NL80211_IFTYPE_AP:
+ case NL80211_IFTYPE_ADHOC:
+ break;
+ case NL80211_IFTYPE_MESH_POINT:
+ /* TODO: Not verified yet. */
+ STUB();
+ break;
+ }
+
+ return 0;
+}
+
+void cw1200_offchannel_work(struct work_struct *work)
+{
+ struct cw1200_common *priv =
+ container_of(work, struct cw1200_common, offchannel_work);
+ u8 queueId = cw1200_queue_get_queue_id(priv->pending_frame_id);
+ struct cw1200_queue *queue = &priv->tx_queue[queueId];
+
+ BUG_ON(queueId >= 4);
+ BUG_ON(!priv->channel);
+
+ mutex_lock(&priv->conf_mutex);
+ if (likely(!priv->join_status)) {
+ wsm_flush_tx(priv);
+ cw1200_update_listening(priv, true);
+ cw1200_update_filtering(priv);
+ }
+ if (unlikely(!priv->join_status))
+ cw1200_queue_remove(queue, priv->pending_frame_id);
+ else
+ cw1200_queue_requeue(queue, priv->pending_frame_id);
+ mutex_unlock(&priv->conf_mutex);
+ wsm_unlock_tx(priv);
+}
+
+void cw1200_join_work(struct work_struct *work)
+{
+ struct cw1200_common *priv =
+ container_of(work, struct cw1200_common, join_work);
+ u8 queueId = cw1200_queue_get_queue_id(priv->pending_frame_id);
+ struct cw1200_queue *queue = &priv->tx_queue[queueId];
+ const struct cw1200_txpriv *txpriv = NULL;
+ struct sk_buff *skb = NULL;
+ const struct wsm_tx *wsm;
+ const struct ieee80211_hdr *frame;
+ const u8 *bssid;
+ struct cfg80211_bss *bss;
+ const u8 *ssidie;
+ const u8 *dtimie;
+ const struct ieee80211_tim_ie *tim = NULL;
+ struct wsm_protected_mgmt_policy mgmt_policy;
+
+ BUG_ON(queueId >= 4);
+ if (cw1200_queue_get_skb(queue, priv->pending_frame_id,
+ &skb, &txpriv)) {
+ wsm_unlock_tx(priv);
+ return;
+ }
+ wsm = (struct wsm_tx *)&skb->data[0];
+ frame = (struct ieee80211_hdr *)&skb->data[txpriv->offset];
+ bssid = frame->addr3; /* BSSID is A3 in TODS/FROMDS/NODS */
+
+ BUG_ON(!wsm);
+ BUG_ON(!priv->channel);
+
+ if (unlikely(priv->join_status)) {
+ wsm_lock_tx(priv);
+ cw1200_unjoin_work(&priv->unjoin_work);
+ }
+
+ cancel_delayed_work_sync(&priv->join_timeout);
+
+ bss = cfg80211_get_bss(priv->hw->wiphy, priv->channel,
+ bssid, NULL, 0, 0, 0);
+ if (!bss) {
+ cw1200_queue_remove(queue, priv->pending_frame_id);
+ wsm_unlock_tx(priv);
+ return;
+ }
+ ssidie = cfg80211_find_ie(WLAN_EID_SSID,
+ bss->information_elements,
+ bss->len_information_elements);
+ dtimie = cfg80211_find_ie(WLAN_EID_TIM,
+ bss->information_elements,
+ bss->len_information_elements);
+ if (dtimie)
+ tim = (struct ieee80211_tim_ie *)&dtimie[2];
+
+ mutex_lock(&priv->conf_mutex);
+ {
+ struct wsm_join join = {
+ .mode = (bss->capability & WLAN_CAPABILITY_IBSS) ?
+ WSM_JOIN_MODE_IBSS : WSM_JOIN_MODE_BSS,
+ .preambleType = WSM_JOIN_PREAMBLE_SHORT,
+ .probeForJoin = 1,
+ /* dtimPeriod will be updated after association */
+ .dtimPeriod = 1,
+ .beaconInterval = bss->beacon_interval,
+ /* basicRateSet will be updated after association */
+ .basicRateSet = 7,
+ };
+
+ /* BT Coex related changes */
+ if (priv->is_BT_Present) {
+ if (((priv->conf_listen_interval * 100) %
+ bss->beacon_interval) == 0)
+ priv->listen_interval =
+ ((priv->conf_listen_interval * 100) /
+ bss->beacon_interval);
+ else
+ priv->listen_interval =
+ ((priv->conf_listen_interval * 100) /
+ bss->beacon_interval + 1);
+ }
+
+ if (tim && tim->dtim_period > 1) {
+ join.dtimPeriod = tim->dtim_period;
+ priv->join_dtim_period = tim->dtim_period;
+ }
+ priv->beacon_int = bss->beacon_interval;
+ sta_printk(KERN_DEBUG "[STA] Join DTIM: %d, interval: %d\n",
+ join.dtimPeriod, priv->beacon_int);
+
+ join.channelNumber = priv->channel->hw_value;
+ join.band = (priv->channel->band == IEEE80211_BAND_5GHZ) ?
+ WSM_PHY_BAND_5G : WSM_PHY_BAND_2_4G;
+
+ memcpy(&join.bssid[0], bssid, sizeof(join.bssid));
+ memcpy(&priv->join_bssid[0], bssid, sizeof(priv->join_bssid));
+
+ if (ssidie) {
+ join.ssidLength = ssidie[1];
+ if (WARN_ON(join.ssidLength > sizeof(join.ssid)))
+ join.ssidLength = sizeof(join.ssid);
+ memcpy(&join.ssid[0], &ssidie[2], join.ssidLength);
+ }
+
+ if (priv->vif->p2p) {
+ join.flags |= WSM_JOIN_FLAGS_P2P_GO;
+ join.basicRateSet =
+ cw1200_rate_mask_to_wsm(priv, 0xFF0);
+ }
+
+ wsm_flush_tx(priv);
+
+ /* Queue unjoin if not associated in 3 sec. */
+ queue_delayed_work(priv->workqueue,
+ &priv->join_timeout, 3 * HZ);
+#ifdef CONFIG_CW1200_PM
+ /*Stay Awake for Join Timeout*/
+ cw1200_pm_stay_awake(&priv->pm_state, 3 * HZ);
+#endif
+
+ cw1200_update_listening(priv, false);
+
+ /* BlockACK policy will be updated when assoc is done */
+ WARN_ON(wsm_set_block_ack_policy(priv,
+ 0, priv->ba_tid_mask));
+ spin_lock_bh(&priv->ba_lock);
+ priv->ba_ena = false;
+ priv->ba_cnt = 0;
+ priv->ba_acc = 0;
+ priv->ba_hist = 0;
+ spin_unlock_bh(&priv->ba_lock);
+
+ mgmt_policy.protectedMgmtEnable = 0;
+ mgmt_policy.unprotectedMgmtFramesAllowed = 1;
+ mgmt_policy.encryptionForAuthFrame = 1;
+ wsm_set_protected_mgmt_policy(priv, &mgmt_policy);
+
+ if (wsm_join(priv, &join)) {
+ memset(&priv->join_bssid[0],
+ 0, sizeof(priv->join_bssid));
+ cw1200_queue_remove(queue, priv->pending_frame_id);
+ cancel_delayed_work_sync(&priv->join_timeout);
+ cw1200_update_listening(priv, priv->listening);
+ } else {
+ /* Upload keys */
+ WARN_ON(cw1200_upload_keys(priv));
+ cw1200_queue_requeue(queue, priv->pending_frame_id);
+ priv->join_status = CW1200_JOIN_STATUS_STA;
+
+ /* Due to beacon filtering it is possible that the
+ * AP's beacon is not known for the mac80211 stack.
+ * Disable filtering temporary to make sure the stack
+ * receives at least one */
+ priv->disable_beacon_filter = true;
+
+ }
+ cw1200_update_filtering(priv);
+ }
+ mutex_unlock(&priv->conf_mutex);
+ cfg80211_put_bss(bss);
+ wsm_unlock_tx(priv);
+}
+
+void cw1200_join_timeout(struct work_struct *work)
+{
+ struct cw1200_common *priv =
+ container_of(work, struct cw1200_common, join_timeout.work);
+ sta_printk(KERN_DEBUG "[WSM] Issue unjoin command (TMO).\n");
+ wsm_lock_tx(priv);
+ cw1200_unjoin_work(&priv->unjoin_work);
+}
+
+void cw1200_unjoin_work(struct work_struct *work)
+{
+ struct cw1200_common *priv =
+ container_of(work, struct cw1200_common, unjoin_work);
+
+ struct wsm_reset reset = {
+ .reset_statistics = true,
+ };
+
+ del_timer_sync(&priv->ba_timer);
+
+ mutex_lock(&priv->conf_mutex);
+ if (unlikely(atomic_read(&priv->scan.in_progress))) {
+ if (priv->delayed_unjoin) {
+ wiphy_dbg(priv->hw->wiphy,
+ "%s: Delayed unjoin "
+ "is already scheduled.\n",
+ __func__);
+ wsm_unlock_tx(priv);
+ } else {
+ priv->delayed_unjoin = true;
+ }
+ mutex_unlock(&priv->conf_mutex);
+ return;
+ }
+
+ if (priv->join_status &&
+ priv->join_status > CW1200_JOIN_STATUS_STA) {
+ wiphy_err(priv->hw->wiphy,
+ "%s: Unexpected: join status: %d\n",
+ __func__, priv->join_status);
+ BUG_ON(1);
+ }
+ if (priv->join_status) {
+ cancel_work_sync(&priv->update_filtering_work);
+ memset(&priv->join_bssid[0], 0, sizeof(priv->join_bssid));
+ priv->join_status = CW1200_JOIN_STATUS_PASSIVE;
+
+ /* Unjoin is a reset. */
+ wsm_flush_tx(priv);
+ WARN_ON(wsm_keep_alive_period(priv, 0));
+ WARN_ON(wsm_reset(priv, &reset));
+ priv->join_dtim_period = 0;
+ WARN_ON(cw1200_setup_mac(priv));
+ cw1200_free_event_queue(priv);
+ cancel_work_sync(&priv->event_handler);
+ cancel_delayed_work_sync(&priv->connection_loss_work);
+ cw1200_update_listening(priv, priv->listening);
+
+ WARN_ON(wsm_set_block_ack_policy(priv,
+ 0, priv->ba_tid_mask));
+
+ priv->disable_beacon_filter = false;
+ cw1200_update_filtering(priv);
+ priv->setbssparams_done = false;
+ memset(&priv->association_mode, 0,
+ sizeof(priv->association_mode));
+ memset(&priv->bss_params, 0, sizeof(priv->bss_params));
+ memset(&priv->firmware_ps_mode, 0,
+ sizeof(priv->firmware_ps_mode));
+ sta_printk(KERN_DEBUG "[STA] Unjoin.\n");
+ }
+ mutex_unlock(&priv->conf_mutex);
+ wsm_unlock_tx(priv);
+}
+
+int cw1200_enable_listening(struct cw1200_common *priv)
+{
+ struct wsm_start start = {
+ .mode = WSM_START_MODE_P2P_DEV,
+ .band = (priv->channel->band == IEEE80211_BAND_5GHZ) ?
+ WSM_PHY_BAND_5G : WSM_PHY_BAND_2_4G,
+ .channelNumber = priv->channel->hw_value,
+ .beaconInterval = 100,
+ .DTIMPeriod = 1,
+ .probeDelay = 0,
+ .basicRateSet = 0x0F,
+ };
+ return wsm_start(priv, &start);
+}
+
+int cw1200_disable_listening(struct cw1200_common *priv)
+{
+ int ret;
+ struct wsm_reset reset = {
+ .reset_statistics = true,
+ };
+ ret = wsm_reset(priv, &reset);
+ return ret;
+}
+
+void cw1200_update_listening(struct cw1200_common *priv, bool enabled)
+{
+ if (enabled) {
+ switch (priv->join_status) {
+ case CW1200_JOIN_STATUS_PASSIVE:
+ if (!WARN_ON(cw1200_enable_listening(priv)))
+ priv->join_status = CW1200_JOIN_STATUS_MONITOR;
+ break;
+ default:
+ break;
+ }
+ } else {
+ switch (priv->join_status) {
+ case CW1200_JOIN_STATUS_MONITOR:
+ if (!WARN_ON(cw1200_disable_listening(priv)))
+ priv->join_status = CW1200_JOIN_STATUS_PASSIVE;
+ default:
+ break;
+ }
+ }
+}
+
+int cw1200_set_uapsd_param(struct cw1200_common *priv,
+ const struct wsm_edca_params *arg)
+{
+ int ret;
+ u16 uapsdFlags = 0;
+
+ /* Here's the mapping AC [queue, bit]
+ VO [0,3], VI [1, 2], BE [2, 1], BK [3, 0]*/
+
+ if (arg->params[0].uapsdEnable)
+ uapsdFlags |= 1 << 3;
+
+ if (arg->params[1].uapsdEnable)
+ uapsdFlags |= 1 << 2;
+
+ if (arg->params[2].uapsdEnable)
+ uapsdFlags |= 1 << 1;
+
+ if (arg->params[3].uapsdEnable)
+ uapsdFlags |= 1;
+
+ /* Currently pseudo U-APSD operation is not supported, so setting
+ * MinAutoTriggerInterval, MaxAutoTriggerInterval and
+ * AutoTriggerStep to 0 */
+
+ priv->uapsd_info.uapsdFlags = cpu_to_le16(uapsdFlags);
+ priv->uapsd_info.minAutoTriggerInterval = 0;
+ priv->uapsd_info.maxAutoTriggerInterval = 0;
+ priv->uapsd_info.autoTriggerStep = 0;
+
+ ret = wsm_set_uapsd_info(priv, &priv->uapsd_info);
+ return ret;
+}
+
+void cw1200_ba_work(struct work_struct *work)
+{
+ struct cw1200_common *priv =
+ container_of(work, struct cw1200_common, ba_work);
+ u8 tx_ba_tid_mask;
+
+ if (priv->join_status != CW1200_JOIN_STATUS_STA)
+ return;
+ if (!priv->setbssparams_done)
+ return;
+
+ spin_lock_bh(&priv->ba_lock);
+ tx_ba_tid_mask = priv->ba_ena ? priv->ba_tid_mask : 0;
+ spin_unlock_bh(&priv->ba_lock);
+
+ wsm_set_block_ack_policy(priv, tx_ba_tid_mask, priv->ba_tid_mask);
+}
+
+void cw1200_ba_timer(unsigned long arg)
+{
+ bool ba_ena;
+ struct cw1200_common *priv =
+ (struct cw1200_common *)arg;
+
+ spin_lock_bh(&priv->ba_lock);
+ cw1200_debug_ba(priv, priv->ba_cnt, priv->ba_acc);
+
+ if (atomic_read(&priv->scan.in_progress))
+ goto skip_statistic_update;
+
+ ba_ena = (priv->ba_cnt >= CW1200_BLOCK_ACK_CNT &&
+ priv->ba_acc / priv->ba_cnt >= CW1200_BLOCK_ACK_THLD);
+ priv->ba_cnt = 0;
+ priv->ba_acc = 0;
+
+ if (ba_ena != priv->ba_ena) {
+ if (ba_ena || ++priv->ba_hist >= CW1200_BLOCK_ACK_HIST) {
+ priv->ba_ena = ba_ena;
+ priv->ba_hist = 0;
+ sta_printk(KERN_DEBUG "[STA] %s block ACK:\n",
+ ba_ena ? "enable" : "disable");
+ queue_work(priv->workqueue, &priv->ba_work);
+ }
+ } else if (priv->ba_hist)
+ --priv->ba_hist;
+
+skip_statistic_update:
+ spin_unlock_bh(&priv->ba_lock);
+}
diff --git a/drivers/staging/cw1200/sta.h b/drivers/staging/cw1200/sta.h
new file mode 100644
index 0000000..4e4833a
--- /dev/null
+++ b/drivers/staging/cw1200/sta.h
@@ -0,0 +1,87 @@
+/*
+ * Mac80211 STA interface for ST-Ericsson CW1200 mac80211 drivers
+ *
+ * Copyright (c) 2010, ST-Ericsson
+ * Author: Dmitry Tarnyagin <dmitry.tarnyagin@xxxxxxxxxxxxxx>
+ *
+ * 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.
+ */
+
+#ifndef STA_H_INCLUDED
+#define STA_H_INCLUDED
+
+/* ******************************************************************** */
+/* mac80211 API */
+
+int cw1200_start(struct ieee80211_hw *dev);
+void cw1200_stop(struct ieee80211_hw *dev);
+int cw1200_add_interface(struct ieee80211_hw *dev,
+ struct ieee80211_vif *vif);
+void cw1200_remove_interface(struct ieee80211_hw *dev,
+ struct ieee80211_vif *vif);
+int cw1200_config(struct ieee80211_hw *dev, u32 changed);
+void cw1200_configure_filter(struct ieee80211_hw *dev,
+ unsigned int changed_flags,
+ unsigned int *total_flags,
+ u64 multicast);
+int cw1200_conf_tx(struct ieee80211_hw *dev, struct ieee80211_vif *vif,
+ u16 queue, const struct ieee80211_tx_queue_params *params);
+int cw1200_get_stats(struct ieee80211_hw *dev,
+ struct ieee80211_low_level_stats *stats);
+/* Not more a part of interface?
+int cw1200_get_tx_stats(struct ieee80211_hw *dev,
+ struct ieee80211_tx_queue_stats *stats);
+*/
+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 cw1200_set_rts_threshold(struct ieee80211_hw *hw, u32 value);
+
+void cw1200_flush(struct ieee80211_hw *hw, bool drop);
+
+u64 cw1200_prepare_multicast(struct ieee80211_hw *hw,
+ struct netdev_hw_addr_list *mc_list);
+
+int cw1200_set_pm(struct cw1200_common *priv, const struct wsm_set_pm *arg);
+
+/* ******************************************************************** */
+/* WSM callbacks */
+
+/* void cw1200_set_pm_complete_cb(struct cw1200_common *priv,
+ struct wsm_set_pm_complete *arg); */
+void cw1200_channel_switch_cb(struct cw1200_common *priv);
+
+/* ******************************************************************** */
+/* WSM events */
+
+void cw1200_free_event_queue(struct cw1200_common *priv);
+void cw1200_event_handler(struct work_struct *work);
+void cw1200_bss_loss_work(struct work_struct *work);
+void cw1200_connection_loss_work(struct work_struct *work);
+void cw1200_keep_alive_work(struct work_struct *work);
+void cw1200_tx_failure_work(struct work_struct *work);
+
+/* ******************************************************************** */
+/* Internal API */
+
+int cw1200_setup_mac(struct cw1200_common *priv);
+void cw1200_join_work(struct work_struct *work);
+void cw1200_join_timeout(struct work_struct *work);
+void cw1200_unjoin_work(struct work_struct *work);
+void cw1200_offchannel_work(struct work_struct *work);
+void cw1200_wep_key_work(struct work_struct *work);
+void cw1200_update_listening(struct cw1200_common *priv, bool enabled);
+void cw1200_update_filtering(struct cw1200_common *priv);
+void cw1200_update_filtering_work(struct work_struct *work);
+int __cw1200_flush(struct cw1200_common *priv, bool drop);
+int cw1200_enable_listening(struct cw1200_common *priv);
+int cw1200_disable_listening(struct cw1200_common *priv);
+int cw1200_set_uapsd_param(struct cw1200_common *priv,
+ const struct wsm_edca_params *arg);
+void cw1200_ba_work(struct work_struct *work);
+void cw1200_ba_timer(unsigned long arg);
+
+#endif
--
1.7.11.7
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