Add a workqueue to update the beacon contents asynchronously and
implement downloading the beacon to the HW and starting beacon tx like
the vendor driver.
Signed-off-by: Martin Kaistra <[email protected]>
---
.../net/wireless/realtek/rtl8xxxu/rtl8xxxu.h | 1 +
.../wireless/realtek/rtl8xxxu/rtl8xxxu_core.c | 75 +++++++++++++++++++
.../wireless/realtek/rtl8xxxu/rtl8xxxu_regs.h | 3 +
3 files changed, 79 insertions(+)
diff --git a/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu.h b/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu.h
index 9cd6d171e9933..971f1cc38d323 100644
--- a/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu.h
+++ b/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu.h
@@ -1851,6 +1851,7 @@ struct rtl8xxxu_priv {
struct delayed_work ra_watchdog;
struct work_struct c2hcmd_work;
struct sk_buff_head c2hcmd_queue;
+ struct work_struct update_beacon_work;
struct rtl8xxxu_btcoex bt_coex;
struct rtl8xxxu_ra_report ra_report;
struct rtl8xxxu_cfo_tracking cfo_tracking;
diff --git a/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_core.c b/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_core.c
index 9dc6f3ec7a305..a152e5c9ea691 100644
--- a/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_core.c
+++ b/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_core.c
@@ -1185,6 +1185,20 @@ static void rtl8xxxu_stop_tx_beacon(struct rtl8xxxu_priv *priv)
rtl8xxxu_write8(priv, REG_TBTT_PROHIBIT + 2, val8);
}
+static void rtl8xxxu_start_tx_beacon(struct rtl8xxxu_priv *priv)
+{
+ u8 val8;
+
+ val8 = rtl8xxxu_read8(priv, REG_FWHW_TXQ_CTRL + 2);
+ val8 |= EN_BCNQ_DL >> 16;
+ rtl8xxxu_write8(priv, REG_FWHW_TXQ_CTRL + 2, val8);
+
+ rtl8xxxu_write8(priv, REG_TBTT_PROHIBIT + 1, 0x80);
+ val8 = rtl8xxxu_read8(priv, REG_TBTT_PROHIBIT + 2);
+ val8 &= 0xF0;
+ rtl8xxxu_write8(priv, REG_TBTT_PROHIBIT + 2, val8);
+}
+
/*
* The rtl8723a has 3 channel groups for it's efuse settings. It only
@@ -4964,6 +4978,17 @@ rtl8xxxu_bss_info_changed(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
dev_dbg(dev, "Changed BASIC_RATES!\n");
rtl8xxxu_set_basic_rates(priv, bss_conf->basic_rates);
}
+
+ if (changed & BSS_CHANGED_BEACON_ENABLED) {
+ if (bss_conf->enable_beacon)
+ rtl8xxxu_start_tx_beacon(priv);
+ else
+ rtl8xxxu_stop_tx_beacon(priv);
+ }
+
+ if (changed & BSS_CHANGED_BEACON)
+ schedule_work(&priv->update_beacon_work);
+
error:
return;
}
@@ -5545,6 +5570,55 @@ static void rtl8xxxu_tx(struct ieee80211_hw *hw,
dev_kfree_skb(skb);
}
+static void rtl8xxxu_send_beacon_frame(struct ieee80211_hw *hw,
+ struct ieee80211_vif *vif)
+{
+ struct rtl8xxxu_priv *priv = hw->priv;
+ struct sk_buff *skb = ieee80211_beacon_get(hw, vif, 0);
+ struct device *dev = &priv->udev->dev;
+ int retry;
+ u8 val8;
+
+ /* BCN_VALID, write 1 to clear, cleared by SW */
+ val8 = rtl8xxxu_read8(priv, REG_TDECTRL + 2);
+ val8 |= BIT_BCN_VALID >> 16;
+ rtl8xxxu_write8(priv, REG_TDECTRL + 2, val8);
+
+ /* SW_BCN_SEL - Port0 */
+ val8 = rtl8xxxu_read8(priv, REG_DWBCN1_CTRL_8723B + 2);
+ val8 &= ~(BIT_SW_BCN_SEL >> 16);
+ rtl8xxxu_write8(priv, REG_DWBCN1_CTRL_8723B + 2, val8);
+
+ if (skb)
+ rtl8xxxu_tx(hw, NULL, skb);
+
+ retry = 100;
+ do {
+ val8 = rtl8xxxu_read8(priv, REG_TDECTRL + 2);
+ if (val8 & (BIT_BCN_VALID >> 16))
+ break;
+ usleep_range(10, 20);
+ } while (--retry);
+
+ if (!retry)
+ dev_err(dev, "%s: Failed to read beacon valid bit\n", __func__);
+}
+
+static void rtl8xxxu_update_beacon_work_callback(struct work_struct *work)
+{
+ struct rtl8xxxu_priv *priv =
+ container_of(work, struct rtl8xxxu_priv, update_beacon_work);
+ struct ieee80211_hw *hw = priv->hw;
+ struct ieee80211_vif *vif = priv->vif;
+
+ if (!vif) {
+ WARN_ONCE(true, "no vif to update beacon\n");
+ return;
+ }
+
+ rtl8xxxu_send_beacon_frame(hw, vif);
+}
+
void rtl8723au_rx_parse_phystats(struct rtl8xxxu_priv *priv,
struct ieee80211_rx_status *rx_status,
struct rtl8723au_phy_stats *phy_stats,
@@ -7311,6 +7385,7 @@ static int rtl8xxxu_probe(struct usb_interface *interface,
spin_lock_init(&priv->rx_urb_lock);
INIT_WORK(&priv->rx_urb_wq, rtl8xxxu_rx_urb_work);
INIT_DELAYED_WORK(&priv->ra_watchdog, rtl8xxxu_watchdog_callback);
+ INIT_WORK(&priv->update_beacon_work, rtl8xxxu_update_beacon_work_callback);
skb_queue_head_init(&priv->c2hcmd_queue);
usb_set_intfdata(interface, hw);
diff --git a/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_regs.h b/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_regs.h
index 4dffbab494c3b..ad285e4ac0ec4 100644
--- a/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_regs.h
+++ b/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_regs.h
@@ -456,6 +456,7 @@
#define REG_FIFOPAGE 0x0204
#define REG_TDECTRL 0x0208
+#define BIT_BCN_VALID BIT(16)
#define REG_DWBCN0_CTRL_8188F REG_TDECTRL
@@ -470,6 +471,7 @@
#define AUTO_LLT_INIT_LLT BIT(16)
#define REG_DWBCN1_CTRL_8723B 0x0228
+#define BIT_SW_BCN_SEL BIT(20)
/* 0x0280 ~ 0x02FF RXDMA Configuration */
#define REG_RXDMA_AGG_PG_TH 0x0280 /* 0-7 : USB DMA size bits
@@ -516,6 +518,7 @@
#define REG_FWHW_TXQ_CTRL 0x0420
#define FWHW_TXQ_CTRL_AMPDU_RETRY BIT(7)
#define FWHW_TXQ_CTRL_XMIT_MGMT_ACK BIT(12)
+#define EN_BCNQ_DL BIT(22)
#define REG_HWSEQ_CTRL 0x0423
#define REG_TXPKTBUF_BCNQ_BDNY 0x0424
--
2.30.2
> -----Original Message-----
> From: Martin Kaistra <[email protected]>
> Sent: Friday, April 28, 2023 11:08 PM
> To: [email protected]
> Cc: Jes Sorensen <[email protected]>; Kalle Valo <[email protected]>; Ping-Ke Shih
> <[email protected]>; Bitterblue Smith <[email protected]>; Sebastian Andrzej Siewior
> <[email protected]>
> Subject: [PATCH v4 03/18] wifi: rtl8xxxu: Add beacon functions
>
> Add a workqueue to update the beacon contents asynchronously and
> implement downloading the beacon to the HW and starting beacon tx like
> the vendor driver.
>
> Signed-off-by: Martin Kaistra <[email protected]>
Reviewed-by: Ping-Ke Shih <[email protected]>
[...]