818 lines
22 KiB
C
818 lines
22 KiB
C
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// SPDX-License-Identifier: GPL-2.0-only
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/*
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* Implementation of mac80211 API.
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*
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* Copyright (c) 2017-2020, Silicon Laboratories, Inc.
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* Copyright (c) 2010, ST-Ericsson
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*/
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#include <linux/etherdevice.h>
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#include <net/mac80211.h>
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#include "sta.h"
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#include "wfx.h"
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#include "fwio.h"
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#include "bh.h"
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#include "key.h"
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#include "scan.h"
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#include "debug.h"
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#include "hif_tx.h"
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#include "hif_tx_mib.h"
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#define HIF_MAX_ARP_IP_ADDRTABLE_ENTRIES 2
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u32 wfx_rate_mask_to_hw(struct wfx_dev *wdev, u32 rates)
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{
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int i;
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u32 ret = 0;
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/* The device only supports 2GHz */
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struct ieee80211_supported_band *sband = wdev->hw->wiphy->bands[NL80211_BAND_2GHZ];
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for (i = 0; i < sband->n_bitrates; i++) {
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if (rates & BIT(i)) {
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if (i >= sband->n_bitrates)
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dev_warn(wdev->dev, "unsupported basic rate\n");
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else
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ret |= BIT(sband->bitrates[i].hw_value);
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}
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}
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return ret;
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}
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void wfx_cooling_timeout_work(struct work_struct *work)
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{
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struct wfx_dev *wdev = container_of(to_delayed_work(work), struct wfx_dev,
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cooling_timeout_work);
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wdev->chip_frozen = true;
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wfx_tx_unlock(wdev);
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}
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void wfx_suspend_hot_dev(struct wfx_dev *wdev, enum sta_notify_cmd cmd)
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{
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if (cmd == STA_NOTIFY_AWAKE) {
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/* Device recover normal temperature */
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if (cancel_delayed_work(&wdev->cooling_timeout_work))
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wfx_tx_unlock(wdev);
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} else {
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/* Device is too hot */
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schedule_delayed_work(&wdev->cooling_timeout_work, 10 * HZ);
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wfx_tx_lock(wdev);
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}
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}
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static void wfx_filter_beacon(struct wfx_vif *wvif, bool filter_beacon)
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{
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static const struct wfx_hif_ie_table_entry filter_ies[] = {
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{
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.ie_id = WLAN_EID_VENDOR_SPECIFIC,
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.has_changed = 1,
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.no_longer = 1,
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.has_appeared = 1,
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.oui = { 0x50, 0x6F, 0x9A },
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}, {
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.ie_id = WLAN_EID_HT_OPERATION,
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.has_changed = 1,
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.no_longer = 1,
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.has_appeared = 1,
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}, {
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.ie_id = WLAN_EID_ERP_INFO,
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.has_changed = 1,
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.no_longer = 1,
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.has_appeared = 1,
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}, {
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.ie_id = WLAN_EID_CHANNEL_SWITCH,
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.has_changed = 1,
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.no_longer = 1,
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.has_appeared = 1,
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}
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};
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if (!filter_beacon) {
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wfx_hif_beacon_filter_control(wvif, 0, 1);
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} else {
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wfx_hif_set_beacon_filter_table(wvif, ARRAY_SIZE(filter_ies), filter_ies);
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wfx_hif_beacon_filter_control(wvif, HIF_BEACON_FILTER_ENABLE, 0);
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}
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}
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void wfx_configure_filter(struct ieee80211_hw *hw, unsigned int changed_flags,
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unsigned int *total_flags, u64 unused)
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{
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bool filter_bssid, filter_prbreq, filter_beacon;
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struct ieee80211_vif *vif = NULL;
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struct wfx_dev *wdev = hw->priv;
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struct wfx_vif *wvif = NULL;
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/* Notes:
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* - Probe responses (FIF_BCN_PRBRESP_PROMISC) are never filtered
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* - PS-Poll (FIF_PSPOLL) are never filtered
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* - RTS, CTS and Ack (FIF_CONTROL) are always filtered
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* - Broken frames (FIF_FCSFAIL and FIF_PLCPFAIL) are always filtered
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* - Firmware does (yet) allow to forward unicast traffic sent to other stations (aka.
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* promiscuous mode)
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*/
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*total_flags &= FIF_BCN_PRBRESP_PROMISC | FIF_ALLMULTI | FIF_OTHER_BSS |
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FIF_PROBE_REQ | FIF_PSPOLL;
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mutex_lock(&wdev->conf_mutex);
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while ((wvif = wvif_iterate(wdev, wvif)) != NULL) {
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mutex_lock(&wvif->scan_lock);
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/* Note: FIF_BCN_PRBRESP_PROMISC covers probe response and
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* beacons from other BSS
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*/
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if (*total_flags & FIF_BCN_PRBRESP_PROMISC)
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filter_beacon = false;
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else
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filter_beacon = true;
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wfx_filter_beacon(wvif, filter_beacon);
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if (*total_flags & FIF_OTHER_BSS)
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filter_bssid = false;
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else
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filter_bssid = true;
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vif = wvif_to_vif(wvif);
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/* In AP mode, chip can reply to probe request itself */
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if (*total_flags & FIF_PROBE_REQ && vif->type == NL80211_IFTYPE_AP) {
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dev_dbg(wdev->dev, "do not forward probe request in AP mode\n");
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*total_flags &= ~FIF_PROBE_REQ;
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}
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if (*total_flags & FIF_PROBE_REQ)
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filter_prbreq = false;
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else
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filter_prbreq = true;
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wfx_hif_set_rx_filter(wvif, filter_bssid, filter_prbreq);
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mutex_unlock(&wvif->scan_lock);
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}
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mutex_unlock(&wdev->conf_mutex);
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}
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static int wfx_get_ps_timeout(struct wfx_vif *wvif, bool *enable_ps)
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{
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struct ieee80211_channel *chan0 = NULL, *chan1 = NULL;
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struct ieee80211_conf *conf = &wvif->wdev->hw->conf;
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struct ieee80211_vif *vif = wvif_to_vif(wvif);
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WARN(!vif->cfg.assoc && enable_ps,
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"enable_ps is reliable only if associated");
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if (wdev_to_wvif(wvif->wdev, 0)) {
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struct wfx_vif *wvif_ch0 = wdev_to_wvif(wvif->wdev, 0);
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struct ieee80211_vif *vif_ch0 = wvif_to_vif(wvif_ch0);
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chan0 = vif_ch0->bss_conf.chandef.chan;
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}
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if (wdev_to_wvif(wvif->wdev, 1)) {
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struct wfx_vif *wvif_ch1 = wdev_to_wvif(wvif->wdev, 1);
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struct ieee80211_vif *vif_ch1 = wvif_to_vif(wvif_ch1);
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chan1 = vif_ch1->bss_conf.chandef.chan;
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}
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if (chan0 && chan1 && vif->type != NL80211_IFTYPE_AP) {
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if (chan0->hw_value == chan1->hw_value) {
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/* It is useless to enable PS if channels are the same. */
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if (enable_ps)
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*enable_ps = false;
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if (vif->cfg.assoc && vif->cfg.ps)
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dev_info(wvif->wdev->dev, "ignoring requested PS mode");
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return -1;
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}
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/* It is necessary to enable PS if channels are different. */
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if (enable_ps)
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*enable_ps = true;
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if (wfx_api_older_than(wvif->wdev, 3, 2))
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return 0;
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else
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return 30;
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}
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if (enable_ps)
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*enable_ps = vif->cfg.ps;
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if (vif->cfg.assoc && vif->cfg.ps)
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return conf->dynamic_ps_timeout;
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else
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return -1;
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}
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int wfx_update_pm(struct wfx_vif *wvif)
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{
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struct ieee80211_vif *vif = wvif_to_vif(wvif);
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int ps_timeout;
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bool ps;
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if (!vif->cfg.assoc)
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return 0;
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ps_timeout = wfx_get_ps_timeout(wvif, &ps);
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if (!ps)
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ps_timeout = 0;
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WARN_ON(ps_timeout < 0);
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if (wvif->uapsd_mask)
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ps_timeout = 0;
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if (!wait_for_completion_timeout(&wvif->set_pm_mode_complete, TU_TO_JIFFIES(512)))
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dev_warn(wvif->wdev->dev, "timeout while waiting of set_pm_mode_complete\n");
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return wfx_hif_set_pm(wvif, ps, ps_timeout);
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}
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int wfx_conf_tx(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
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unsigned int link_id, u16 queue,
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const struct ieee80211_tx_queue_params *params)
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{
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struct wfx_dev *wdev = hw->priv;
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struct wfx_vif *wvif = (struct wfx_vif *)vif->drv_priv;
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int old_uapsd = wvif->uapsd_mask;
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WARN_ON(queue >= hw->queues);
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mutex_lock(&wdev->conf_mutex);
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assign_bit(queue, &wvif->uapsd_mask, params->uapsd);
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wfx_hif_set_edca_queue_params(wvif, queue, params);
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if (vif->type == NL80211_IFTYPE_STATION &&
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old_uapsd != wvif->uapsd_mask) {
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wfx_hif_set_uapsd_info(wvif, wvif->uapsd_mask);
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wfx_update_pm(wvif);
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}
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mutex_unlock(&wdev->conf_mutex);
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return 0;
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}
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int wfx_set_rts_threshold(struct ieee80211_hw *hw, u32 value)
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{
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struct wfx_dev *wdev = hw->priv;
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struct wfx_vif *wvif = NULL;
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while ((wvif = wvif_iterate(wdev, wvif)) != NULL)
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wfx_hif_rts_threshold(wvif, value);
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return 0;
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}
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void wfx_event_report_rssi(struct wfx_vif *wvif, u8 raw_rcpi_rssi)
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{
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/* RSSI: signed Q8.0, RCPI: unsigned Q7.1
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* RSSI = RCPI / 2 - 110
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*/
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struct ieee80211_vif *vif = wvif_to_vif(wvif);
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int rcpi_rssi;
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int cqm_evt;
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rcpi_rssi = raw_rcpi_rssi / 2 - 110;
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if (rcpi_rssi <= vif->bss_conf.cqm_rssi_thold)
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cqm_evt = NL80211_CQM_RSSI_THRESHOLD_EVENT_LOW;
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else
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cqm_evt = NL80211_CQM_RSSI_THRESHOLD_EVENT_HIGH;
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ieee80211_cqm_rssi_notify(vif, cqm_evt, rcpi_rssi, GFP_KERNEL);
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}
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static void wfx_beacon_loss_work(struct work_struct *work)
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{
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struct wfx_vif *wvif = container_of(to_delayed_work(work), struct wfx_vif,
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beacon_loss_work);
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struct ieee80211_vif *vif = wvif_to_vif(wvif);
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struct ieee80211_bss_conf *bss_conf = &vif->bss_conf;
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ieee80211_beacon_loss(vif);
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schedule_delayed_work(to_delayed_work(work), msecs_to_jiffies(bss_conf->beacon_int));
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}
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void wfx_set_default_unicast_key(struct ieee80211_hw *hw, struct ieee80211_vif *vif, int idx)
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{
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struct wfx_vif *wvif = (struct wfx_vif *)vif->drv_priv;
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wfx_hif_wep_default_key_id(wvif, idx);
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}
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void wfx_reset(struct wfx_vif *wvif)
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{
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struct wfx_dev *wdev = wvif->wdev;
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wfx_tx_lock_flush(wdev);
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wfx_hif_reset(wvif, false);
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wfx_tx_policy_init(wvif);
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if (wvif_count(wdev) <= 1)
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wfx_hif_set_block_ack_policy(wvif, 0xFF, 0xFF);
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wfx_tx_unlock(wdev);
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wvif->join_in_progress = false;
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cancel_delayed_work_sync(&wvif->beacon_loss_work);
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wvif = NULL;
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while ((wvif = wvif_iterate(wdev, wvif)) != NULL)
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wfx_update_pm(wvif);
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}
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int wfx_sta_add(struct ieee80211_hw *hw, struct ieee80211_vif *vif, struct ieee80211_sta *sta)
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{
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struct wfx_vif *wvif = (struct wfx_vif *)vif->drv_priv;
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struct wfx_sta_priv *sta_priv = (struct wfx_sta_priv *)&sta->drv_priv;
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sta_priv->vif_id = wvif->id;
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if (vif->type == NL80211_IFTYPE_STATION)
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wfx_hif_set_mfp(wvif, sta->mfp, sta->mfp);
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/* In station mode, the firmware interprets new link-id as a TDLS peer */
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if (vif->type == NL80211_IFTYPE_STATION && !sta->tdls)
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return 0;
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sta_priv->link_id = ffz(wvif->link_id_map);
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wvif->link_id_map |= BIT(sta_priv->link_id);
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WARN_ON(!sta_priv->link_id);
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WARN_ON(sta_priv->link_id >= HIF_LINK_ID_MAX);
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wfx_hif_map_link(wvif, false, sta->addr, sta_priv->link_id, sta->mfp);
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return 0;
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}
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int wfx_sta_remove(struct ieee80211_hw *hw, struct ieee80211_vif *vif, struct ieee80211_sta *sta)
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{
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struct wfx_vif *wvif = (struct wfx_vif *)vif->drv_priv;
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struct wfx_sta_priv *sta_priv = (struct wfx_sta_priv *)&sta->drv_priv;
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/* See note in wfx_sta_add() */
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if (!sta_priv->link_id)
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return 0;
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|
|
/* FIXME add a mutex? */
|
||
|
|
wfx_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 ieee80211_vif *vif = wvif_to_vif(wvif);
|
||
|
|
struct sk_buff *skb;
|
||
|
|
|
||
|
|
skb = ieee80211_beacon_get(wvif->wdev->hw, vif, 0);
|
||
|
|
if (!skb)
|
||
|
|
return -ENOMEM;
|
||
|
|
wfx_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, vif);
|
||
|
|
if (!skb)
|
||
|
|
return -ENOMEM;
|
||
|
|
wfx_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 ieee80211_vif *vif = wvif_to_vif(wvif);
|
||
|
|
struct sk_buff *skb = ieee80211_beacon_get(wvif->wdev->hw, vif, 0);
|
||
|
|
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;
|
||
|
|
wfx_hif_set_mfp(wvif, *ptr & BIT(7), *ptr & BIT(6));
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
int wfx_start_ap(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
|
||
|
|
struct ieee80211_bss_conf *link_conf)
|
||
|
|
{
|
||
|
|
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 = wfx_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 ieee80211_bss_conf *link_conf)
|
||
|
|
{
|
||
|
|
struct wfx_vif *wvif = (struct wfx_vif *)vif->drv_priv;
|
||
|
|
|
||
|
|
wfx_reset(wvif);
|
||
|
|
}
|
||
|
|
|
||
|
|
static void wfx_join(struct wfx_vif *wvif)
|
||
|
|
{
|
||
|
|
struct ieee80211_vif *vif = wvif_to_vif(wvif);
|
||
|
|
struct ieee80211_bss_conf *conf = &vif->bss_conf;
|
||
|
|
struct cfg80211_bss *bss = NULL;
|
||
|
|
u8 ssid[IEEE80211_MAX_SSID_LEN];
|
||
|
|
const u8 *ssid_ie = NULL;
|
||
|
|
int ssid_len = 0;
|
||
|
|
int ret;
|
||
|
|
|
||
|
|
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 && !vif->cfg.ibss_joined) {
|
||
|
|
wfx_tx_unlock(wvif->wdev);
|
||
|
|
return;
|
||
|
|
}
|
||
|
|
|
||
|
|
rcu_read_lock(); /* protect ssid_ie */
|
||
|
|
if (bss)
|
||
|
|
ssid_ie = ieee80211_bss_get_ie(bss, WLAN_EID_SSID);
|
||
|
|
if (ssid_ie) {
|
||
|
|
ssid_len = ssid_ie[1];
|
||
|
|
if (ssid_len > IEEE80211_MAX_SSID_LEN)
|
||
|
|
ssid_len = IEEE80211_MAX_SSID_LEN;
|
||
|
|
memcpy(ssid, &ssid_ie[2], ssid_len);
|
||
|
|
}
|
||
|
|
rcu_read_unlock();
|
||
|
|
|
||
|
|
cfg80211_put_bss(wvif->wdev->hw->wiphy, bss);
|
||
|
|
|
||
|
|
wvif->join_in_progress = true;
|
||
|
|
ret = wfx_hif_join(wvif, conf, wvif->channel, ssid, ssid_len);
|
||
|
|
if (ret) {
|
||
|
|
ieee80211_connection_loss(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_vif *vif = wvif_to_vif(wvif);
|
||
|
|
struct ieee80211_sta *sta = NULL;
|
||
|
|
int ampdu_density = 0;
|
||
|
|
bool greenfield = false;
|
||
|
|
|
||
|
|
rcu_read_lock(); /* protect sta */
|
||
|
|
if (info->bssid && !vif->cfg.ibss_joined)
|
||
|
|
sta = ieee80211_find_sta(vif, info->bssid);
|
||
|
|
if (sta && sta->deflink.ht_cap.ht_supported)
|
||
|
|
ampdu_density = sta->deflink.ht_cap.ampdu_density;
|
||
|
|
if (sta && sta->deflink.ht_cap.ht_supported &&
|
||
|
|
!(info->ht_operation_mode & IEEE80211_HT_OP_MODE_NON_GF_STA_PRSNT))
|
||
|
|
greenfield = !!(sta->deflink.ht_cap.cap & IEEE80211_HT_CAP_GRN_FLD);
|
||
|
|
rcu_read_unlock();
|
||
|
|
|
||
|
|
wvif->join_in_progress = false;
|
||
|
|
wfx_hif_set_association_mode(wvif, ampdu_density, greenfield, info->use_short_preamble);
|
||
|
|
wfx_hif_keep_alive_period(wvif, 0);
|
||
|
|
/* beacon_loss_count is defined to 7 in net/mac80211/mlme.c. Let's use the same value. */
|
||
|
|
wfx_hif_set_bss_params(wvif, vif->cfg.aid, 7);
|
||
|
|
wfx_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);
|
||
|
|
}
|
||
|
|
wfx_hif_beacon_transmit(wvif, enable);
|
||
|
|
}
|
||
|
|
|
||
|
|
void wfx_bss_info_changed(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
|
||
|
|
struct ieee80211_bss_conf *info, u64 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 (vif->cfg.assoc || vif->cfg.ibss_joined)
|
||
|
|
wfx_join_finalize(wvif, info);
|
||
|
|
else if (!vif->cfg.assoc && vif->type == NL80211_IFTYPE_STATION)
|
||
|
|
wfx_reset(wvif);
|
||
|
|
else
|
||
|
|
dev_warn(wdev->dev, "misunderstood change: ASSOC\n");
|
||
|
|
}
|
||
|
|
|
||
|
|
if (changed & BSS_CHANGED_BEACON_INFO) {
|
||
|
|
if (vif->type != NL80211_IFTYPE_STATION)
|
||
|
|
dev_warn(wdev->dev, "misunderstood change: BEACON_INFO\n");
|
||
|
|
wfx_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 = &vif->cfg.arp_addr_list[i];
|
||
|
|
|
||
|
|
if (vif->cfg.arp_addr_cnt > HIF_MAX_ARP_IP_ADDRTABLE_ENTRIES)
|
||
|
|
arp_addr = NULL;
|
||
|
|
if (i >= vif->cfg.arp_addr_cnt)
|
||
|
|
arp_addr = NULL;
|
||
|
|
wfx_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)
|
||
|
|
wfx_hif_keep_alive_period(wvif,
|
||
|
|
info->max_idle_period * USEC_PER_TU / USEC_PER_MSEC);
|
||
|
|
|
||
|
|
if (changed & BSS_CHANGED_ERP_CTS_PROT)
|
||
|
|
wfx_hif_erp_use_protection(wvif, info->use_cts_prot);
|
||
|
|
|
||
|
|
if (changed & BSS_CHANGED_ERP_SLOT)
|
||
|
|
wfx_hif_slot_time(wvif, info->use_short_slot ? 9 : 20);
|
||
|
|
|
||
|
|
if (changed & BSS_CHANGED_CQM)
|
||
|
|
wfx_hif_set_rcpi_rssi_threshold(wvif, info->cqm_rssi_thold, info->cqm_rssi_hyst);
|
||
|
|
|
||
|
|
if (changed & BSS_CHANGED_TXPOWER)
|
||
|
|
wfx_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 ieee80211_vif *vif = wvif_to_vif(wvif);
|
||
|
|
struct sk_buff *skb;
|
||
|
|
u16 tim_offset, tim_length;
|
||
|
|
u8 *tim_ptr;
|
||
|
|
|
||
|
|
skb = ieee80211_beacon_get_tim(wvif->wdev->hw, vif, &tim_offset,
|
||
|
|
&tim_length, 0);
|
||
|
|
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;
|
||
|
|
}
|
||
|
|
|
||
|
|
wfx_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_bss_conf *link_conf,
|
||
|
|
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_bss_conf *link_conf,
|
||
|
|
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;
|
||
|
|
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;
|
||
|
|
}
|
||
|
|
|
||
|
|
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");
|
||
|
|
|
||
|
|
wfx_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)
|
||
|
|
wfx_hif_set_block_ack_policy(wvif, 0xFF, 0xFF);
|
||
|
|
else
|
||
|
|
wfx_hif_set_block_ack_policy(wvif, 0x00, 0x00);
|
||
|
|
}
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
|
||
|
|
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");
|
||
|
|
|
||
|
|
wfx_hif_reset(wvif, false);
|
||
|
|
wfx_hif_set_macaddr(wvif, NULL);
|
||
|
|
wfx_tx_policy_init(wvif);
|
||
|
|
|
||
|
|
cancel_delayed_work_sync(&wvif->beacon_loss_work);
|
||
|
|
wdev->vif[wvif->id] = 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)
|
||
|
|
wfx_hif_set_block_ack_policy(wvif, 0xFF, 0xFF);
|
||
|
|
else
|
||
|
|
wfx_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));
|
||
|
|
}
|