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wifi: rtl8xxxu: Allow creating interface in AP mode

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Use the sequence from the vendor driver for setting up the beacon
related registers.
Also set the MAC address register here, in case the MAC address for the
new interface should be different from what was set in
rtl8xxxu_init_device(). This happens for example with the hostapd config
option "bssid".

Signed-off-by: Martin Kaistra <martin.kaistra@linutronix.de>
Reviewed-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://lore.kernel.org/r/20230428150833.218605-7-martin.kaistra@linutronix.de
This commit is contained in:
Martin Kaistra
2023-04-28 17:08:21 +02:00
committed by Kalle Valo
parent 20d5951548
commit fd5440f931
2 changed files with 29 additions and 4 deletions
Download Patch File Download Diff File Expand all files Collapse all files

31
drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_core.c
View File

@@ -6471,18 +6471,39 @@ static int rtl8xxxu_add_interface(struct ieee80211_hw *hw,
int ret;
u8 val8;
if (!priv->vif)
priv->vif = vif;
else
return -EOPNOTSUPP;
switch (vif->type) {
case NL80211_IFTYPE_STATION:
if (!priv->vif)
priv->vif = vif;
else
return -EOPNOTSUPP;
rtl8xxxu_stop_tx_beacon(priv);
val8 = rtl8xxxu_read8(priv, REG_BEACON_CTRL);
val8 |= BEACON_ATIM | BEACON_FUNCTION_ENABLE |
BEACON_DISABLE_TSF_UPDATE;
rtl8xxxu_write8(priv, REG_BEACON_CTRL, val8);
ret = 0;
break;
case NL80211_IFTYPE_AP:
rtl8xxxu_write8(priv, REG_BEACON_CTRL,
BEACON_DISABLE_TSF_UPDATE | BEACON_CTRL_MBSSID);
rtl8xxxu_write8(priv, REG_ATIMWND, 0x0c); /* 12ms */
rtl8xxxu_write16(priv, REG_TSFTR_SYN_OFFSET, 0x7fff); /* ~32ms */
rtl8xxxu_write8(priv, REG_DUAL_TSF_RST, DUAL_TSF_RESET_TSF0);
/* enable BCN0 function */
rtl8xxxu_write8(priv, REG_BEACON_CTRL,
BEACON_DISABLE_TSF_UPDATE |
BEACON_FUNCTION_ENABLE | BEACON_CTRL_MBSSID |
BEACON_CTRL_TX_BEACON_RPT);
/* select BCN on port 0 */
val8 = rtl8xxxu_read8(priv, REG_CCK_CHECK);
val8 &= ~BIT_BCN_PORT_SEL;
rtl8xxxu_write8(priv, REG_CCK_CHECK, val8);
ret = 0;
break;
default:
@@ -6490,6 +6511,8 @@ static int rtl8xxxu_add_interface(struct ieee80211_hw *hw,
}
rtl8xxxu_set_linktype(priv, vif->type);
ether_addr_copy(priv->mac_addr, vif->addr);
rtl8xxxu_set_mac(priv);
return ret;
}

2
drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_regs.h
View File

@@ -575,6 +575,8 @@
#define REG_ARFR1 0x0448
#define REG_ARFR2 0x044c
#define REG_ARFR3 0x0450
#define REG_CCK_CHECK 0x0454
#define BIT_BCN_PORT_SEL BIT(5)
#define REG_AMPDU_MAX_TIME_8723B 0x0456
#define REG_AGGLEN_LMT 0x0458
#define REG_AMPDU_MIN_SPACE 0x045c