diff options
Diffstat (limited to 'drivers/staging/wfx/sta.c')
| -rw-r--r-- | drivers/staging/wfx/sta.c | 833 |
1 files changed, 0 insertions, 833 deletions
diff --git a/drivers/staging/wfx/sta.c b/drivers/staging/wfx/sta.c deleted file mode 100644 index 23c0425e3929..000000000000 --- a/drivers/staging/wfx/sta.c +++ /dev/null @@ -1,833 +0,0 @@ -// SPDX-License-Identifier: GPL-2.0-only -/* - * Implementation of mac80211 API. - * - * Copyright (c) 2017-2020, Silicon Laboratories, Inc. - * Copyright (c) 2010, ST-Ericsson - */ -#include <linux/etherdevice.h> -#include <net/mac80211.h> - -#include "sta.h" -#include "wfx.h" -#include "fwio.h" -#include "bh.h" -#include "key.h" -#include "scan.h" -#include "debug.h" -#include "hif_tx.h" -#include "hif_tx_mib.h" - -#define HIF_MAX_ARP_IP_ADDRTABLE_ENTRIES 2 - -u32 wfx_rate_mask_to_hw(struct wfx_dev *wdev, u32 rates) -{ - int i; - u32 ret = 0; - /* The device only supports 2GHz */ - struct ieee80211_supported_band *sband = wdev->hw->wiphy->bands[NL80211_BAND_2GHZ]; - - for (i = 0; i < sband->n_bitrates; i++) { - if (rates & BIT(i)) { - if (i >= sband->n_bitrates) - dev_warn(wdev->dev, "unsupported basic rate\n"); - else - ret |= BIT(sband->bitrates[i].hw_value); - } - } - return ret; -} - -void wfx_cooling_timeout_work(struct work_struct *work) -{ - struct wfx_dev *wdev = container_of(to_delayed_work(work), - struct wfx_dev, - cooling_timeout_work); - - wdev->chip_frozen = true; - wfx_tx_unlock(wdev); -} - -void wfx_suspend_hot_dev(struct wfx_dev *wdev, enum sta_notify_cmd cmd) -{ - if (cmd == STA_NOTIFY_AWAKE) { - /* Device recover normal temperature */ - if (cancel_delayed_work(&wdev->cooling_timeout_work)) - wfx_tx_unlock(wdev); - } else { - /* Device is too hot */ - schedule_delayed_work(&wdev->cooling_timeout_work, 10 * HZ); - wfx_tx_lock(wdev); - } -} - -static void wfx_filter_beacon(struct wfx_vif *wvif, bool filter_beacon) -{ - static const struct hif_ie_table_entry filter_ies[] = { - { - .ie_id = WLAN_EID_VENDOR_SPECIFIC, - .has_changed = 1, - .no_longer = 1, - .has_appeared = 1, - .oui = { 0x50, 0x6F, 0x9A }, - }, { - .ie_id = WLAN_EID_HT_OPERATION, - .has_changed = 1, - .no_longer = 1, - .has_appeared = 1, - }, { - .ie_id = WLAN_EID_ERP_INFO, - .has_changed = 1, - .no_longer = 1, - .has_appeared = 1, - }, { - .ie_id = WLAN_EID_CHANNEL_SWITCH, - .has_changed = 1, - .no_longer = 1, - .has_appeared = 1, - } - }; - - if (!filter_beacon) { - hif_beacon_filter_control(wvif, 0, 1); - } else { - hif_set_beacon_filter_table(wvif, ARRAY_SIZE(filter_ies), filter_ies); - hif_beacon_filter_control(wvif, HIF_BEACON_FILTER_ENABLE, 0); - } -} - -void wfx_configure_filter(struct ieee80211_hw *hw, unsigned int changed_flags, - unsigned int *total_flags, u64 unused) -{ - struct wfx_vif *wvif = NULL; - struct wfx_dev *wdev = hw->priv; - bool filter_bssid, filter_prbreq, filter_beacon; - - /* Notes: - * - Probe responses (FIF_BCN_PRBRESP_PROMISC) are never filtered - * - PS-Poll (FIF_PSPOLL) are never filtered - * - RTS, CTS and Ack (FIF_CONTROL) are always filtered - * - Broken frames (FIF_FCSFAIL and FIF_PLCPFAIL) are always filtered - * - Firmware does (yet) allow to forward unicast traffic sent to - * other stations (aka. promiscuous mode) - */ - *total_flags &= FIF_BCN_PRBRESP_PROMISC | FIF_ALLMULTI | FIF_OTHER_BSS | - FIF_PROBE_REQ | FIF_PSPOLL; - - mutex_lock(&wdev->conf_mutex); - while ((wvif = wvif_iterate(wdev, wvif)) != NULL) { - mutex_lock(&wvif->scan_lock); - - /* Note: FIF_BCN_PRBRESP_PROMISC covers probe response and - * beacons from other BSS - */ - if (*total_flags & FIF_BCN_PRBRESP_PROMISC) - filter_beacon = false; - else - filter_beacon = true; - wfx_filter_beacon(wvif, filter_beacon); - - if (*total_flags & FIF_OTHER_BSS) - filter_bssid = false; - else - filter_bssid = true; - - /* In AP mode, chip can reply to probe request itself */ - if (*total_flags & FIF_PROBE_REQ && - wvif->vif->type == NL80211_IFTYPE_AP) { - dev_dbg(wdev->dev, "do not forward probe request in AP mode\n"); - *total_flags &= ~FIF_PROBE_REQ; - } - - if (*total_flags & FIF_PROBE_REQ) - filter_prbreq = false; - else - filter_prbreq = true; - hif_set_rx_filter(wvif, filter_bssid, filter_prbreq); - - mutex_unlock(&wvif->scan_lock); - } - mutex_unlock(&wdev->conf_mutex); -} - -static int wfx_get_ps_timeout(struct wfx_vif *wvif, bool *enable_ps) -{ - struct ieee80211_channel *chan0 = NULL, *chan1 = NULL; - struct ieee80211_conf *conf = &wvif->wdev->hw->conf; - - WARN(!wvif->vif->bss_conf.assoc && enable_ps, - "enable_ps is reliable only if associated"); - if (wdev_to_wvif(wvif->wdev, 0)) - chan0 = wdev_to_wvif(wvif->wdev, 0)->vif->bss_conf.chandef.chan; - if (wdev_to_wvif(wvif->wdev, 1)) - chan1 = wdev_to_wvif(wvif->wdev, 1)->vif->bss_conf.chandef.chan; - if (chan0 && chan1 && wvif->vif->type != NL80211_IFTYPE_AP) { - if (chan0->hw_value == chan1->hw_value) { - /* It is useless to enable PS if channels are the same. */ - if (enable_ps) - *enable_ps = false; - if (wvif->vif->bss_conf.assoc && wvif->vif->bss_conf.ps) - dev_info(wvif->wdev->dev, "ignoring requested PS mode"); - return -1; - } - /* It is necessary to enable PS if channels - * are different. - */ - if (enable_ps) - *enable_ps = true; - if (wvif->wdev->force_ps_timeout > -1) - return wvif->wdev->force_ps_timeout; - else if (wfx_api_older_than(wvif->wdev, 3, 2)) - return 0; - else - return 30; - } - if (enable_ps) - *enable_ps = wvif->vif->bss_conf.ps; - if (wvif->wdev->force_ps_timeout > -1) - return wvif->wdev->force_ps_timeout; - else if (wvif->vif->bss_conf.assoc && wvif->vif->bss_conf.ps) - return conf->dynamic_ps_timeout; - else - return -1; -} - -int wfx_update_pm(struct wfx_vif *wvif) -{ - int ps_timeout; - bool ps; - - if (!wvif->vif->bss_conf.assoc) - return 0; - ps_timeout = wfx_get_ps_timeout(wvif, &ps); - if (!ps) - ps_timeout = 0; - WARN_ON(ps_timeout < 0); - if (wvif->uapsd_mask) - ps_timeout = 0; - - if (!wait_for_completion_timeout(&wvif->set_pm_mode_complete, - TU_TO_JIFFIES(512))) - dev_warn(wvif->wdev->dev, - "timeout while waiting of set_pm_mode_complete\n"); - return hif_set_pm(wvif, ps, ps_timeout); -} - -int wfx_conf_tx(struct ieee80211_hw *hw, struct ieee80211_vif *vif, - u16 queue, const struct ieee80211_tx_queue_params *params) -{ - struct wfx_dev *wdev = hw->priv; - struct wfx_vif *wvif = (struct wfx_vif *)vif->drv_priv; - int old_uapsd = wvif->uapsd_mask; - - WARN_ON(queue >= hw->queues); - - mutex_lock(&wdev->conf_mutex); - assign_bit(queue, &wvif->uapsd_mask, params->uapsd); - hif_set_edca_queue_params(wvif, queue, params); - if (wvif->vif->type == NL80211_IFTYPE_STATION && - old_uapsd != wvif->uapsd_mask) { - hif_set_uapsd_info(wvif, wvif->uapsd_mask); - wfx_update_pm(wvif); - } - mutex_unlock(&wdev->conf_mutex); - return 0; -} - -int wfx_set_rts_threshold(struct ieee80211_hw *hw, u32 value) -{ - struct wfx_dev *wdev = hw->priv; - struct wfx_vif *wvif = NULL; - - while ((wvif = wvif_iterate(wdev, wvif)) != NULL) - hif_rts_threshold(wvif, value); - return 0; -} - -void wfx_event_report_rssi(struct wfx_vif *wvif, u8 raw_rcpi_rssi) -{ - /* RSSI: signed Q8.0, RCPI: unsigned Q7.1 - * RSSI = RCPI / 2 - 110 - */ - int rcpi_rssi; - int cqm_evt; - - rcpi_rssi = raw_rcpi_rssi / 2 - 110; - if (rcpi_rssi <= wvif->vif->bss_conf.cqm_rssi_thold) - cqm_evt = NL80211_CQM_RSSI_THRESHOLD_EVENT_LOW; - else - cqm_evt = NL80211_CQM_RSSI_THRESHOLD_EVENT_HIGH; - ieee80211_cqm_rssi_notify(wvif->vif, cqm_evt, rcpi_rssi, GFP_KERNEL); -} - -static void wfx_beacon_loss_work(struct work_struct *work) -{ - struct wfx_vif *wvif = container_of(to_delayed_work(work), - struct wfx_vif, beacon_loss_work); - struct ieee80211_bss_conf *bss_conf = &wvif->vif->bss_conf; - - ieee80211_beacon_loss(wvif->vif); - schedule_delayed_work(to_delayed_work(work), - msecs_to_jiffies(bss_conf->beacon_int)); -} - -void wfx_set_default_unicast_key(struct ieee80211_hw *hw, - struct ieee80211_vif *vif, int idx) -{ - struct wfx_vif *wvif = (struct wfx_vif *)vif->drv_priv; - - hif_wep_default_key_id(wvif, idx); -} - -void wfx_reset(struct wfx_vif *wvif) -{ - struct wfx_dev *wdev = wvif->wdev; - - wfx_tx_lock_flush(wdev); - hif_reset(wvif, false); - wfx_tx_policy_init(wvif); - if (wvif_count(wdev) <= 1) - hif_set_block_ack_policy(wvif, 0xFF, 0xFF); - wfx_tx_unlock(wdev); - wvif->join_in_progress = false; - cancel_delayed_work_sync(&wvif->beacon_loss_work); - wvif = NULL; - while ((wvif = wvif_iterate(wdev, wvif)) != NULL) - wfx_update_pm(wvif); -} - -int wfx_sta_add(struct ieee80211_hw *hw, struct ieee80211_vif *vif, - struct ieee80211_sta *sta) -{ - struct wfx_vif *wvif = (struct wfx_vif *)vif->drv_priv; - struct wfx_sta_priv *sta_priv = (struct wfx_sta_priv *)&sta->drv_priv; - - sta_priv->vif_id = wvif->id; - - if (vif->type == NL80211_IFTYPE_STATION) - hif_set_mfp(wvif, sta->mfp, sta->mfp); - - /* In station mode, the firmware interprets new link-id as a TDLS peer */ - if (vif->type == NL80211_IFTYPE_STATION && !sta->tdls) - return 0; - sta_priv->link_id = ffz(wvif->link_id_map); - wvif->link_id_map |= BIT(sta_priv->link_id); - WARN_ON(!sta_priv->link_id); - WARN_ON(sta_priv->link_id >= HIF_LINK_ID_MAX); - hif_map_link(wvif, false, sta->addr, sta_priv->link_id, sta->mfp); - - return 0; -} - -int wfx_sta_remove(struct ieee80211_hw *hw, struct ieee80211_vif *vif, - struct ieee80211_sta *sta) -{ - struct wfx_vif *wvif = (struct wfx_vif *)vif->drv_priv; - struct wfx_sta_priv *sta_priv = (struct wfx_sta_priv *)&sta->drv_priv; - - /* See note in wfx_sta_add() */ - if (!sta_priv->link_id) - return 0; - /* FIXME add a mutex? */ - hif_map_link(wvif, true, sta->addr, sta_priv->link_id, false); - wvif->link_id_map &= ~BIT(sta_priv->link_id); - return 0; -} - -static int wfx_upload_ap_templates(struct wfx_vif *wvif) -{ - struct sk_buff *skb; - - skb = ieee80211_beacon_get(wvif->wdev->hw, wvif->vif); - if (!skb) - return -ENOMEM; - hif_set_template_frame(wvif, skb, HIF_TMPLT_BCN, - API_RATE_INDEX_B_1MBPS); - dev_kfree_skb(skb); - - skb = ieee80211_proberesp_get(wvif->wdev->hw, wvif->vif); - if (!skb) - return -ENOMEM; - hif_set_template_frame(wvif, skb, HIF_TMPLT_PRBRES, - API_RATE_INDEX_B_1MBPS); - dev_kfree_skb(skb); - return 0; -} - -static void wfx_set_mfp_ap(struct wfx_vif *wvif) -{ - struct sk_buff *skb = ieee80211_beacon_get(wvif->wdev->hw, wvif->vif); - const int ieoffset = offsetof(struct ieee80211_mgmt, u.beacon.variable); - const u16 *ptr = (u16 *)cfg80211_find_ie(WLAN_EID_RSN, - skb->data + ieoffset, - skb->len - ieoffset); - const int pairwise_cipher_suite_count_offset = 8 / sizeof(u16); - const int pairwise_cipher_suite_size = 4 / sizeof(u16); - const int akm_suite_size = 4 / sizeof(u16); - - if (ptr) { - ptr += pairwise_cipher_suite_count_offset; - if (WARN_ON(ptr > (u16 *)skb_tail_pointer(skb))) - return; - ptr += 1 + pairwise_cipher_suite_size * *ptr; - if (WARN_ON(ptr > (u16 *)skb_tail_pointer(skb))) - return; - ptr += 1 + akm_suite_size * *ptr; - if (WARN_ON(ptr > (u16 *)skb_tail_pointer(skb))) - return; - hif_set_mfp(wvif, *ptr & BIT(7), *ptr & BIT(6)); - } -} - -int wfx_start_ap(struct ieee80211_hw *hw, struct ieee80211_vif *vif) -{ - struct wfx_vif *wvif = (struct wfx_vif *)vif->drv_priv; - struct wfx_dev *wdev = wvif->wdev; - int ret; - - wvif = NULL; - while ((wvif = wvif_iterate(wdev, wvif)) != NULL) - wfx_update_pm(wvif); - wvif = (struct wfx_vif *)vif->drv_priv; - wfx_upload_ap_templates(wvif); - ret = hif_start(wvif, &vif->bss_conf, wvif->channel); - if (ret > 0) - return -EIO; - wfx_set_mfp_ap(wvif); - return ret; -} - -void wfx_stop_ap(struct ieee80211_hw *hw, struct ieee80211_vif *vif) -{ - struct wfx_vif *wvif = (struct wfx_vif *)vif->drv_priv; - - wfx_reset(wvif); -} - -static void wfx_join(struct wfx_vif *wvif) -{ - int ret; - struct ieee80211_bss_conf *conf = &wvif->vif->bss_conf; - struct cfg80211_bss *bss = NULL; - u8 ssid[IEEE80211_MAX_SSID_LEN]; - const u8 *ssidie = NULL; - int ssidlen = 0; - - wfx_tx_lock_flush(wvif->wdev); - - bss = cfg80211_get_bss(wvif->wdev->hw->wiphy, wvif->channel, - conf->bssid, NULL, 0, - IEEE80211_BSS_TYPE_ANY, IEEE80211_PRIVACY_ANY); - if (!bss && !conf->ibss_joined) { - wfx_tx_unlock(wvif->wdev); - return; - } - - rcu_read_lock(); /* protect ssidie */ - if (bss) - ssidie = ieee80211_bss_get_ie(bss, WLAN_EID_SSID); - if (ssidie) { - ssidlen = ssidie[1]; - if (ssidlen > IEEE80211_MAX_SSID_LEN) - ssidlen = IEEE80211_MAX_SSID_LEN; - memcpy(ssid, &ssidie[2], ssidlen); - } - rcu_read_unlock(); - - cfg80211_put_bss(wvif->wdev->hw->wiphy, bss); - - wvif->join_in_progress = true; - ret = hif_join(wvif, conf, wvif->channel, ssid, ssidlen); - if (ret) { - ieee80211_connection_loss(wvif->vif); - wfx_reset(wvif); - } else { - /* 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 - */ - wfx_filter_beacon(wvif, false); - } - wfx_tx_unlock(wvif->wdev); -} - -static void wfx_join_finalize(struct wfx_vif *wvif, - struct ieee80211_bss_conf *info) -{ - struct ieee80211_sta *sta = NULL; - int ampdu_density = 0; - bool greenfield = false; - - rcu_read_lock(); /* protect sta */ - if (info->bssid && !info->ibss_joined) - sta = ieee80211_find_sta(wvif->vif, info->bssid); - if (sta && sta->ht_cap.ht_supported) - ampdu_density = sta->ht_cap.ampdu_density; - if (sta && sta->ht_cap.ht_supported && - !(info->ht_operation_mode & IEEE80211_HT_OP_MODE_NON_GF_STA_PRSNT)) - greenfield = !!(sta->ht_cap.cap & IEEE80211_HT_CAP_GRN_FLD); - rcu_read_unlock(); - - wvif->join_in_progress = false; - hif_set_association_mode(wvif, ampdu_density, greenfield, - info->use_short_preamble); - hif_keep_alive_period(wvif, 0); - /* beacon_loss_count is defined to 7 in net/mac80211/mlme.c. Let's use - * the same value. - */ - hif_set_bss_params(wvif, info->aid, 7); - hif_set_beacon_wakeup_period(wvif, 1, 1); - wfx_update_pm(wvif); -} - -int wfx_join_ibss(struct ieee80211_hw *hw, struct ieee80211_vif *vif) -{ - struct wfx_vif *wvif = (struct wfx_vif *)vif->drv_priv; - - wfx_upload_ap_templates(wvif); - wfx_join(wvif); - return 0; -} - -void wfx_leave_ibss(struct ieee80211_hw *hw, struct ieee80211_vif *vif) -{ - struct wfx_vif *wvif = (struct wfx_vif *)vif->drv_priv; - - wfx_reset(wvif); -} - -static void wfx_enable_beacon(struct wfx_vif *wvif, bool enable) -{ - /* Driver has Content After DTIM Beacon in queue. Driver is waiting for - * a signal from the firmware. Since we are going to stop to send - * beacons, this signal will never happens. See also - * wfx_suspend_resume_mc() - */ - if (!enable && wfx_tx_queues_has_cab(wvif)) { - wvif->after_dtim_tx_allowed = true; - wfx_bh_request_tx(wvif->wdev); - } - hif_beacon_transmit(wvif, enable); -} - -void wfx_bss_info_changed(struct ieee80211_hw *hw, struct ieee80211_vif *vif, - struct ieee80211_bss_conf *info, u32 changed) -{ - struct wfx_dev *wdev = hw->priv; - struct wfx_vif *wvif = (struct wfx_vif *)vif->drv_priv; - int i; - - mutex_lock(&wdev->conf_mutex); - - if (changed & BSS_CHANGED_BASIC_RATES || - changed & BSS_CHANGED_BEACON_INT || - changed & BSS_CHANGED_BSSID) { - if (vif->type == NL80211_IFTYPE_STATION) - wfx_join(wvif); - } - - if (changed & BSS_CHANGED_ASSOC) { - if (info->assoc || info->ibss_joined) - wfx_join_finalize(wvif, info); - else if (!info->assoc && vif->type == NL80211_IFTYPE_STATION) - wfx_reset(wvif); - else - dev_warn(wdev->dev, "%s: misunderstood change: ASSOC\n", - __func__); - } - - if (changed & BSS_CHANGED_BEACON_INFO) { - if (vif->type != NL80211_IFTYPE_STATION) - dev_warn(wdev->dev, "%s: misunderstood change: BEACON_INFO\n", - __func__); - hif_set_beacon_wakeup_period(wvif, info->dtim_period, - info->dtim_period); - /* We temporary forwarded beacon for join process. It is now no - * more necessary. - */ - wfx_filter_beacon(wvif, true); - } - - if (changed & BSS_CHANGED_ARP_FILTER) { - for (i = 0; i < HIF_MAX_ARP_IP_ADDRTABLE_ENTRIES; i++) { - __be32 *arp_addr = &info->arp_addr_list[i]; - - if (info->arp_addr_cnt > HIF_MAX_ARP_IP_ADDRTABLE_ENTRIES) - arp_addr = NULL; - if (i >= info->arp_addr_cnt) - arp_addr = NULL; - hif_set_arp_ipv4_filter(wvif, i, arp_addr); - } - } - - if (changed & BSS_CHANGED_AP_PROBE_RESP || - changed & BSS_CHANGED_BEACON) - wfx_upload_ap_templates(wvif); - - if (changed & BSS_CHANGED_BEACON_ENABLED) - wfx_enable_beacon(wvif, info->enable_beacon); - - if (changed & BSS_CHANGED_KEEP_ALIVE) - hif_keep_alive_period(wvif, info->max_idle_period * - USEC_PER_TU / USEC_PER_MSEC); - - if (changed & BSS_CHANGED_ERP_CTS_PROT) - hif_erp_use_protection(wvif, info->use_cts_prot); - - if (changed & BSS_CHANGED_ERP_SLOT) - hif_slot_time(wvif, info->use_short_slot ? 9 : 20); - - if (changed & BSS_CHANGED_CQM) - hif_set_rcpi_rssi_threshold(wvif, info->cqm_rssi_thold, - info->cqm_rssi_hyst); - - if (changed & BSS_CHANGED_TXPOWER) - hif_set_output_power(wvif, info->txpower); - - if (changed & BSS_CHANGED_PS) - wfx_update_pm(wvif); - - mutex_unlock(&wdev->conf_mutex); -} - -static int wfx_update_tim(struct wfx_vif *wvif) -{ - struct sk_buff *skb; - u16 tim_offset, tim_length; - u8 *tim_ptr; - - skb = ieee80211_beacon_get_tim(wvif->wdev->hw, wvif->vif, - &tim_offset, &tim_length); - if (!skb) - return -ENOENT; - tim_ptr = skb->data + tim_offset; - - if (tim_offset && tim_length >= 6) { - /* Firmware handles DTIM counter internally */ - tim_ptr[2] = 0; - - /* Set/reset aid0 bit */ - if (wfx_tx_queues_has_cab(wvif)) - tim_ptr[4] |= 1; - else - tim_ptr[4] &= ~1; - } - - hif_update_ie_beacon(wvif, tim_ptr, tim_length); - dev_kfree_skb(skb); - - return 0; -} - -static void wfx_update_tim_work(struct work_struct *work) -{ - struct wfx_vif *wvif = container_of(work, struct wfx_vif, update_tim_work); - - wfx_update_tim(wvif); -} - -int wfx_set_tim(struct ieee80211_hw *hw, struct ieee80211_sta *sta, bool set) -{ - struct wfx_dev *wdev = hw->priv; - struct wfx_sta_priv *sta_dev = (struct wfx_sta_priv *)&sta->drv_priv; - struct wfx_vif *wvif = wdev_to_wvif(wdev, sta_dev->vif_id); - - if (!wvif) { - dev_warn(wdev->dev, "%s: received event for non-existent vif\n", __func__); - return -EIO; - } - schedule_work(&wvif->update_tim_work); - return 0; -} - -void wfx_suspend_resume_mc(struct wfx_vif *wvif, enum sta_notify_cmd notify_cmd) -{ - struct wfx_vif *wvif_it; - - if (notify_cmd != STA_NOTIFY_AWAKE) - return; - - /* Device won't be able to honor CAB if a scan is in progress on any - * interface. Prefer to skip this DTIM and wait for the next one. - */ - wvif_it = NULL; - while ((wvif_it = wvif_iterate(wvif->wdev, wvif_it)) != NULL) - if (mutex_is_locked(&wvif_it->scan_lock)) - return; - - if (!wfx_tx_queues_has_cab(wvif) || wvif->after_dtim_tx_allowed) - dev_warn(wvif->wdev->dev, "incorrect sequence (%d CAB in queue)", - wfx_tx_queues_has_cab(wvif)); - wvif->after_dtim_tx_allowed = true; - wfx_bh_request_tx(wvif->wdev); -} - -int wfx_ampdu_action(struct ieee80211_hw *hw, - struct ieee80211_vif *vif, - struct ieee80211_ampdu_params *params) -{ - /* Aggregation is implemented fully in firmware */ - switch (params->action) { - case IEEE80211_AMPDU_RX_START: - case IEEE80211_AMPDU_RX_STOP: - /* Just acknowledge it to enable frame re-ordering */ - return 0; - default: - /* Leave the firmware doing its business for tx aggregation */ - return -EOPNOTSUPP; - } -} - -int wfx_add_chanctx(struct ieee80211_hw *hw, - struct ieee80211_chanctx_conf *conf) -{ - return 0; -} - -void wfx_remove_chanctx(struct ieee80211_hw *hw, - struct ieee80211_chanctx_conf *conf) -{ -} - -void wfx_change_chanctx(struct ieee80211_hw *hw, - struct ieee80211_chanctx_conf *conf, - u32 changed) -{ -} - -int wfx_assign_vif_chanctx(struct ieee80211_hw *hw, struct ieee80211_vif *vif, - struct ieee80211_chanctx_conf *conf) -{ - struct wfx_vif *wvif = (struct wfx_vif *)vif->drv_priv; - struct ieee80211_channel *ch = conf->def.chan; - - WARN(wvif->channel, "channel overwrite"); - wvif->channel = ch; - - return 0; -} - -void wfx_unassign_vif_chanctx(struct ieee80211_hw *hw, - struct ieee80211_vif *vif, - struct ieee80211_chanctx_conf *conf) -{ - struct wfx_vif *wvif = (struct wfx_vif *)vif->drv_priv; - struct ieee80211_channel *ch = conf->def.chan; - - WARN(wvif->channel != ch, "channel mismatch"); - wvif->channel = NULL; -} - -int wfx_config(struct ieee80211_hw *hw, u32 changed) -{ - return 0; -} - -int wfx_add_interface(struct ieee80211_hw *hw, struct ieee80211_vif *vif) -{ - int i, ret = 0; - struct wfx_dev *wdev = hw->priv; - struct wfx_vif *wvif = (struct wfx_vif *)vif->drv_priv; - - vif->driver_flags |= IEEE80211_VIF_BEACON_FILTER | - IEEE80211_VIF_SUPPORTS_UAPSD | - IEEE80211_VIF_SUPPORTS_CQM_RSSI; - - mutex_lock(&wdev->conf_mutex); - - switch (vif->type) { - case NL80211_IFTYPE_STATION: - case NL80211_IFTYPE_ADHOC: - case NL80211_IFTYPE_AP: - break; - default: - mutex_unlock(&wdev->conf_mutex); - return -EOPNOTSUPP; - } - - /* FIXME: prefer use of container_of() to get vif */ - wvif->vif = vif; - wvif->wdev = wdev; - - wvif->link_id_map = 1; /* link-id 0 is reserved for multicast */ - INIT_WORK(&wvif->update_tim_work, wfx_update_tim_work); - INIT_DELAYED_WORK(&wvif->beacon_loss_work, wfx_beacon_loss_work); - - init_completion(&wvif->set_pm_mode_complete); - complete(&wvif->set_pm_mode_complete); - INIT_WORK(&wvif->tx_policy_upload_work, wfx_tx_policy_upload_work); - - mutex_init(&wvif->scan_lock); - init_completion(&wvif->scan_complete); - INIT_WORK(&wvif->scan_work, wfx_hw_scan_work); - - wfx_tx_queues_init(wvif); - wfx_tx_policy_init(wvif); - - for (i = 0; i < ARRAY_SIZE(wdev->vif); i++) { - if (!wdev->vif[i]) { - wdev->vif[i] = vif; - wvif->id = i; - break; - } - } - WARN(i == ARRAY_SIZE(wdev->vif), "try to instantiate more vif than supported"); - - hif_set_macaddr(wvif, vif->addr); - - mutex_unlock(&wdev->conf_mutex); - - wvif = NULL; - while ((wvif = wvif_iterate(wdev, wvif)) != NULL) { - /* Combo mode does not support Block Acks. We can re-enable them */ - if (wvif_count(wdev) == 1) - hif_set_block_ack_policy(wvif, 0xFF, 0xFF); - else - hif_set_block_ack_policy(wvif, 0x00, 0x00); - } - return ret; -} - -void wfx_remove_interface(struct ieee80211_hw *hw, struct ieee80211_vif *vif) -{ - struct wfx_dev *wdev = hw->priv; - struct wfx_vif *wvif = (struct wfx_vif *)vif->drv_priv; - - wait_for_completion_timeout(&wvif->set_pm_mode_complete, msecs_to_jiffies(300)); - wfx_tx_queues_check_empty(wvif); - - mutex_lock(&wdev->conf_mutex); - WARN(wvif->link_id_map != 1, "corrupted state"); - - hif_reset(wvif, false); - hif_set_macaddr(wvif, NULL); - wfx_tx_policy_init(wvif); - - cancel_delayed_work_sync(&wvif->beacon_loss_work); - wdev->vif[wvif->id] = NULL; - wvif->vif = NULL; - - mutex_unlock(&wdev->conf_mutex); - - wvif = NULL; - while ((wvif = wvif_iterate(wdev, wvif)) != NULL) { - /* Combo mode does not support Block Acks. We can re-enable them */ - if (wvif_count(wdev) == 1) - hif_set_block_ack_policy(wvif, 0xFF, 0xFF); - else - hif_set_block_ack_policy(wvif, 0x00, 0x00); - } -} - -int wfx_start(struct ieee80211_hw *hw) -{ - return 0; -} - -void wfx_stop(struct ieee80211_hw *hw) -{ - struct wfx_dev *wdev = hw->priv; - - WARN_ON(!skb_queue_empty_lockless(&wdev->tx_pending)); -} |