c99f037493
Running USB devices in AP mode is never a good idea. That said, fix the TIM
issue in rtl8192cu [1], allowing these devices to "work" in AP mode.
[1] https://patchwork.kernel.org/project/linux-wireless/patch/20210419065956.6085-1-pkshih@realtek.com/
Signed-off-by: Rui Salvaterra <rsalvaterra@gmail.com>
(cherry picked from commit eeda8652f1)
119 lines
4.0 KiB
Diff
119 lines
4.0 KiB
Diff
Date: Mon, 19 Apr 2021 14:59:56 +0800
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From: Ping-Ke Shih <pkshih@realtek.com>
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To: <kvalo@codeaurora.org>
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CC: <linux-wireless@vger.kernel.org>, <mail@maciej.szmigiero.name>,
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<Larry.Finger@lwfinger.net>
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Subject: [PATCH] rtlwifi: implement set_tim by update beacon content
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Once beacon content is changed, we update the content to wifi card by
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send_beacon_frame(). Then, STA with PS can wake up properly to receive its
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packets.
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Since we update beacon content to PCI wifi devices every beacon interval,
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the only one usb device, 8192CU, needs to update beacon content when
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mac80211 calling set_tim.
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Reported-by: Maciej S. Szmigiero <mail@maciej.szmigiero.name>
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Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
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Tested-by: Maciej S. Szmigiero <mail@maciej.szmigiero.name>
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---
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drivers/net/wireless/realtek/rtlwifi/core.c | 32 +++++++++++++++++++++
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drivers/net/wireless/realtek/rtlwifi/core.h | 1 +
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drivers/net/wireless/realtek/rtlwifi/usb.c | 3 ++
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drivers/net/wireless/realtek/rtlwifi/wifi.h | 1 +
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4 files changed, 37 insertions(+)
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--- a/drivers/net/wireless/realtek/rtlwifi/core.c
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+++ b/drivers/net/wireless/realtek/rtlwifi/core.c
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@@ -1018,6 +1018,25 @@ static void send_beacon_frame(struct iee
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}
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}
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+void rtl_update_beacon_work_callback(struct work_struct *work)
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+{
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+ struct rtl_works *rtlworks =
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+ container_of(work, struct rtl_works, update_beacon_work);
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+ struct ieee80211_hw *hw = rtlworks->hw;
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+ struct rtl_priv *rtlpriv = rtl_priv(hw);
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+ struct ieee80211_vif *vif = rtlpriv->mac80211.vif;
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+
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+ if (!vif) {
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+ WARN_ONCE(true, "no vif to update beacon\n");
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+ return;
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+ }
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+
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+ mutex_lock(&rtlpriv->locks.conf_mutex);
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+ send_beacon_frame(hw, vif);
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+ mutex_unlock(&rtlpriv->locks.conf_mutex);
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+}
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+EXPORT_SYMBOL_GPL(rtl_update_beacon_work_callback);
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+
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static void rtl_op_bss_info_changed(struct ieee80211_hw *hw,
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struct ieee80211_vif *vif,
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struct ieee80211_bss_conf *bss_conf,
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@@ -1747,6 +1766,18 @@ static void rtl_op_flush(struct ieee8021
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rtlpriv->intf_ops->flush(hw, queues, drop);
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}
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+static int rtl_op_set_tim(struct ieee80211_hw *hw, struct ieee80211_sta *sta,
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+ bool set)
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+{
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+ struct rtl_priv *rtlpriv = rtl_priv(hw);
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+ struct rtl_hal *rtlhal = rtl_hal(rtl_priv(hw));
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+
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+ if (rtlhal->hw_type == HARDWARE_TYPE_RTL8192CU)
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+ schedule_work(&rtlpriv->works.update_beacon_work);
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+
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+ return 0;
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+}
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+
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/* Description:
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* This routine deals with the Power Configuration CMD
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* parsing for RTL8723/RTL8188E Series IC.
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@@ -1903,6 +1934,7 @@ const struct ieee80211_ops rtl_ops = {
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.sta_add = rtl_op_sta_add,
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.sta_remove = rtl_op_sta_remove,
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.flush = rtl_op_flush,
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+ .set_tim = rtl_op_set_tim,
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};
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EXPORT_SYMBOL_GPL(rtl_ops);
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--- a/drivers/net/wireless/realtek/rtlwifi/core.h
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+++ b/drivers/net/wireless/realtek/rtlwifi/core.h
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@@ -60,5 +60,6 @@ void rtl_bb_delay(struct ieee80211_hw *h
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bool rtl_cmd_send_packet(struct ieee80211_hw *hw, struct sk_buff *skb);
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bool rtl_btc_status_false(void);
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void rtl_dm_diginit(struct ieee80211_hw *hw, u32 cur_igval);
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+void rtl_update_beacon_work_callback(struct work_struct *work);
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#endif
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--- a/drivers/net/wireless/realtek/rtlwifi/usb.c
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+++ b/drivers/net/wireless/realtek/rtlwifi/usb.c
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@@ -807,6 +807,7 @@ static void rtl_usb_stop(struct ieee8021
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tasklet_kill(&rtlusb->rx_work_tasklet);
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cancel_work_sync(&rtlpriv->works.lps_change_work);
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+ cancel_work_sync(&rtlpriv->works.update_beacon_work);
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flush_workqueue(rtlpriv->works.rtl_wq);
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@@ -1033,6 +1034,8 @@ int rtl_usb_probe(struct usb_interface *
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rtl_fill_h2c_cmd_work_callback);
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INIT_WORK(&rtlpriv->works.lps_change_work,
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rtl_lps_change_work_callback);
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+ INIT_WORK(&rtlpriv->works.update_beacon_work,
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+ rtl_update_beacon_work_callback);
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rtlpriv->usb_data_index = 0;
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init_completion(&rtlpriv->firmware_loading_complete);
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--- a/drivers/net/wireless/realtek/rtlwifi/wifi.h
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+++ b/drivers/net/wireless/realtek/rtlwifi/wifi.h
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@@ -2487,6 +2487,7 @@ struct rtl_works {
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struct work_struct lps_change_work;
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struct work_struct fill_h2c_cmd;
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+ struct work_struct update_beacon_work;
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};
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struct rtl_debug {
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