wifi: rtw89: add support for HW TKIP crypto

For 8852BTE, 8852CE, and 8922AE, TKIP encryption and decryption
will be handled by hardware. All other chips will retain their
existing software-based encryption and decryption.

Signed-off-by: Kuan-Chung Chen <damon.chen@realtek.com>
Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Link: https://patch.msgid.link/20250220062344.15836-1-pkshih@realtek.com

9 files changed, 15 insertions, 2 deletions

diff --git a/drivers/net/wireless/realtek/rtw89/cam.c b/drivers/net/wireless/realtek/rtw89/cam.c
index 8fa1e6c1ce13..eca3d767ff60 100644
--- a/drivers/net/wireless/realtek/rtw89/cam.c
+++ b/drivers/net/wireless/realtek/rtw89/cam.c
@@ -476,6 +476,12 @@ int rtw89_cam_sec_key_add(struct rtw89_dev *rtwdev,
 	case WLAN_CIPHER_SUITE_WEP104:
 		hw_key_type = RTW89_SEC_KEY_TYPE_WEP104;
 		break;
+	case WLAN_CIPHER_SUITE_TKIP:
+		if (!chip->hw_tkip_crypto)
+			return -EOPNOTSUPP;
+		hw_key_type = RTW89_SEC_KEY_TYPE_TKIP;
+		key->flags |= IEEE80211_KEY_FLAG_GENERATE_MMIC;
+		break;
 	case WLAN_CIPHER_SUITE_CCMP:
 		hw_key_type = RTW89_SEC_KEY_TYPE_CCMP128;
 		if (!chip->hw_mgmt_tx_encrypt)
diff --git a/drivers/net/wireless/realtek/rtw89/core.h b/drivers/net/wireless/realtek/rtw89/core.h
index 865cdcfa59e1..3d458dbbdd00 100644
--- a/drivers/net/wireless/realtek/rtw89/core.h
+++ b/drivers/net/wireless/realtek/rtw89/core.h
@@ -4285,6 +4285,7 @@ struct rtw89_chip_info {
 	bool ul_tb_pwr_diff;
 	bool hw_sec_hdr;
 	bool hw_mgmt_tx_encrypt;
+	bool hw_tkip_crypto;
 	u8 rf_path_num;
 	u8 tx_nss;
 	u8 rx_nss;
diff --git a/drivers/net/wireless/realtek/rtw89/mac_be.c b/drivers/net/wireless/realtek/rtw89/mac_be.c
index dce0a4b01440..99b82dc85ea3 100644
--- a/drivers/net/wireless/realtek/rtw89/mac_be.c
+++ b/drivers/net/wireless/realtek/rtw89/mac_be.c
@@ -708,8 +708,8 @@ static int sec_eng_init_be(struct rtw89_dev *rtwdev)
 	val32 |= B_BE_CLK_EN_CGCMP | B_BE_CLK_EN_WAPI | B_BE_CLK_EN_WEP_TKIP |
 		 B_BE_SEC_TX_ENC | B_BE_SEC_RX_DEC |
 		 B_BE_MC_DEC | B_BE_BC_DEC |
-		 B_BE_BMC_MGNT_DEC | B_BE_UC_MGNT_DEC;
-	val32 &= ~B_BE_SEC_PRE_ENQUE_TX;
+		 B_BE_BMC_MGNT_DEC | B_BE_UC_MGNT_DEC |
+		 B_BE_SEC_PRE_ENQUE_TX;
 	rtw89_write32(rtwdev, R_BE_SEC_ENG_CTRL, val32);
 
 	rtw89_write32_set(rtwdev, R_BE_SEC_MPDU_PROC, B_BE_APPEND_ICV | B_BE_APPEND_MIC);
diff --git a/drivers/net/wireless/realtek/rtw89/rtw8851b.c b/drivers/net/wireless/realtek/rtw89/rtw8851b.c
index 3cd1d7a4d202..34f2278ddf20 100644
--- a/drivers/net/wireless/realtek/rtw89/rtw8851b.c
+++ b/drivers/net/wireless/realtek/rtw89/rtw8851b.c
@@ -2502,6 +2502,7 @@ const struct rtw89_chip_info rtw8851b_chip_info = {
 	.ul_tb_pwr_diff		= false,
 	.hw_sec_hdr		= false,
 	.hw_mgmt_tx_encrypt	= false,
+	.hw_tkip_crypto		= false,
 	.rf_path_num		= 1,
 	.tx_nss			= 1,
 	.rx_nss			= 1,
diff --git a/drivers/net/wireless/realtek/rtw89/rtw8852a.c b/drivers/net/wireless/realtek/rtw89/rtw8852a.c
index 514ef0c2b32b..66d85c04da26 100644
--- a/drivers/net/wireless/realtek/rtw89/rtw8852a.c
+++ b/drivers/net/wireless/realtek/rtw89/rtw8852a.c
@@ -2220,6 +2220,7 @@ const struct rtw89_chip_info rtw8852a_chip_info = {
 	.ul_tb_pwr_diff		= false,
 	.hw_sec_hdr		= false,
 	.hw_mgmt_tx_encrypt	= false,
+	.hw_tkip_crypto		= false,
 	.rf_path_num		= 2,
 	.tx_nss			= 2,
 	.rx_nss			= 2,
diff --git a/drivers/net/wireless/realtek/rtw89/rtw8852b.c b/drivers/net/wireless/realtek/rtw89/rtw8852b.c
index 5dbb33d5e403..7650576f0577 100644
--- a/drivers/net/wireless/realtek/rtw89/rtw8852b.c
+++ b/drivers/net/wireless/realtek/rtw89/rtw8852b.c
@@ -856,6 +856,7 @@ const struct rtw89_chip_info rtw8852b_chip_info = {
 	.ul_tb_pwr_diff		= false,
 	.hw_sec_hdr		= false,
 	.hw_mgmt_tx_encrypt	= false,
+	.hw_tkip_crypto		= false,
 	.rf_path_num		= 2,
 	.tx_nss			= 2,
 	.rx_nss			= 2,
diff --git a/drivers/net/wireless/realtek/rtw89/rtw8852bt.c b/drivers/net/wireless/realtek/rtw89/rtw8852bt.c
index b4832c7897a8..c96ef0dfbae2 100644
--- a/drivers/net/wireless/realtek/rtw89/rtw8852bt.c
+++ b/drivers/net/wireless/realtek/rtw89/rtw8852bt.c
@@ -789,6 +789,7 @@ const struct rtw89_chip_info rtw8852bt_chip_info = {
 	.ul_tb_pwr_diff		= false,
 	.hw_sec_hdr		= false,
 	.hw_mgmt_tx_encrypt     = false,
+	.hw_tkip_crypto		= true,
 	.rf_path_num		= 2,
 	.tx_nss			= 2,
 	.rx_nss			= 2,
diff --git a/drivers/net/wireless/realtek/rtw89/rtw8852c.c b/drivers/net/wireless/realtek/rtw89/rtw8852c.c
index f3965a65ae18..7ba92bf898e3 100644
--- a/drivers/net/wireless/realtek/rtw89/rtw8852c.c
+++ b/drivers/net/wireless/realtek/rtw89/rtw8852c.c
@@ -3015,6 +3015,7 @@ const struct rtw89_chip_info rtw8852c_chip_info = {
 	.ul_tb_pwr_diff		= true,
 	.hw_sec_hdr		= true,
 	.hw_mgmt_tx_encrypt	= true,
+	.hw_tkip_crypto		= true,
 	.rf_path_num		= 2,
 	.tx_nss			= 2,
 	.rx_nss			= 2,
diff --git a/drivers/net/wireless/realtek/rtw89/rtw8922a.c b/drivers/net/wireless/realtek/rtw89/rtw8922a.c
index defa6cf9f7f0..157685c1b686 100644
--- a/drivers/net/wireless/realtek/rtw89/rtw8922a.c
+++ b/drivers/net/wireless/realtek/rtw89/rtw8922a.c
@@ -2774,6 +2774,7 @@ const struct rtw89_chip_info rtw8922a_chip_info = {
 	.ul_tb_pwr_diff		= false,
 	.hw_sec_hdr		= true,
 	.hw_mgmt_tx_encrypt	= true,
+	.hw_tkip_crypto		= true,
 	.rf_path_num		= 2,
 	.tx_nss			= 2,
 	.rx_nss			= 2,