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From: Ping-Ke Shih <pkshih@realtek.com>
To: <kvalo@kernel.org>
CC: <hsuan8331@realtek.com>, <linux-wireless@vger.kernel.org>
Subject: [PATCH v2 2/6] wifi: rtw89: 8922a: add chip_ops::{enable,disable}_bb_rf
Date: Thu, 18 Jan 2024 17:04:09 +0800
Message-ID: <20240118090413.130989-3-pkshih@realtek.com>
In-Reply-To: <20240118090413.130989-1-pkshih@realtek.com>
References: <20240118090413.130989-1-pkshih@realtek.com>
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When we are going to up interface to make connection, turn on BB and RF
hardware power by enable_bb_rf ops. Oppositely, using disable_bb_rf to
turn them off.

Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
---
 drivers/net/wireless/realtek/rtw89/reg.h      | 36 +++++++++++++++++++
 drivers/net/wireless/realtek/rtw89/rtw8922a.c | 19 ++++++++++
 2 files changed, 55 insertions(+)

diff --git a/drivers/net/wireless/realtek/rtw89/reg.h b/drivers/net/wireless/realtek/rtw89/reg.h
index b411bf726849..c4a9ddeb38e0 100644
--- a/drivers/net/wireless/realtek/rtw89/reg.h
+++ b/drivers/net/wireless/realtek/rtw89/reg.h
@@ -4488,6 +4488,42 @@
 #define B_BE_RMAC_PPDU_HANG_CNT_MASK GENMASK(23, 16)
 #define B_BE_SER_L0_COUNTER_MASK GENMASK(8, 0)
 
+#define R_BE_DMAC_SYS_CR32B 0x842C
+#define B_BE_DMAC_BB_PHY1_MASK GENMASK(31, 16)
+#define B_BE_DMAC_BB_PHY0_MASK GENMASK(15, 0)
+#define B_BE_DMAC_BB_CTRL_39 BIT(31)
+#define B_BE_DMAC_BB_CTRL_38 BIT(30)
+#define B_BE_DMAC_BB_CTRL_37 BIT(29)
+#define B_BE_DMAC_BB_CTRL_36 BIT(28)
+#define B_BE_DMAC_BB_CTRL_35 BIT(27)
+#define B_BE_DMAC_BB_CTRL_34 BIT(26)
+#define B_BE_DMAC_BB_CTRL_33 BIT(25)
+#define B_BE_DMAC_BB_CTRL_32 BIT(24)
+#define B_BE_DMAC_BB_CTRL_31 BIT(23)
+#define B_BE_DMAC_BB_CTRL_30 BIT(22)
+#define B_BE_DMAC_BB_CTRL_29 BIT(21)
+#define B_BE_DMAC_BB_CTRL_28 BIT(20)
+#define B_BE_DMAC_BB_CTRL_27 BIT(19)
+#define B_BE_DMAC_BB_CTRL_26 BIT(18)
+#define B_BE_DMAC_BB_CTRL_25 BIT(17)
+#define B_BE_DMAC_BB_CTRL_24 BIT(16)
+#define B_BE_DMAC_BB_CTRL_23 BIT(15)
+#define B_BE_DMAC_BB_CTRL_22 BIT(14)
+#define B_BE_DMAC_BB_CTRL_21 BIT(13)
+#define B_BE_DMAC_BB_CTRL_20 BIT(12)
+#define B_BE_DMAC_BB_CTRL_19 BIT(11)
+#define B_BE_DMAC_BB_CTRL_18 BIT(10)
+#define B_BE_DMAC_BB_CTRL_17 BIT(9)
+#define B_BE_DMAC_BB_CTRL_16 BIT(8)
+#define B_BE_DMAC_BB_CTRL_15 BIT(7)
+#define B_BE_DMAC_BB_CTRL_14 BIT(6)
+#define B_BE_DMAC_BB_CTRL_13 BIT(5)
+#define B_BE_DMAC_BB_CTRL_12 BIT(4)
+#define B_BE_DMAC_BB_CTRL_11 BIT(3)
+#define B_BE_DMAC_BB_CTRL_10 BIT(2)
+#define B_BE_DMAC_BB_CTRL_9 BIT(1)
+#define B_BE_DMAC_BB_CTRL_8 BIT(0)
+
 #define R_BE_DLE_EMPTY0 0x8430
 #define B_BE_PLE_EMPTY_QTA_DMAC_H2D BIT(27)
 #define B_BE_PLE_EMPTY_QTA_DMAC_CPUIO BIT(26)
diff --git a/drivers/net/wireless/realtek/rtw89/rtw8922a.c b/drivers/net/wireless/realtek/rtw89/rtw8922a.c
index 070d0c716659..53c6826e8226 100644
--- a/drivers/net/wireless/realtek/rtw89/rtw8922a.c
+++ b/drivers/net/wireless/realtek/rtw89/rtw8922a.c
@@ -807,6 +807,23 @@ static void rtw8922a_set_channel(struct rtw89_dev *rtwdev,
 	rtw8922a_set_channel_bb(rtwdev, chan, phy_idx);
 }
 
+static int rtw8922a_mac_enable_bb_rf(struct rtw89_dev *rtwdev)
+{
+	rtw89_write8_set(rtwdev, R_BE_FEN_RST_ENABLE,
+			 B_BE_FEN_BBPLAT_RSTB | B_BE_FEN_BB_IP_RSTN);
+	rtw89_write32(rtwdev, R_BE_DMAC_SYS_CR32B, 0x7FF97FF9);
+
+	return 0;
+}
+
+static int rtw8922a_mac_disable_bb_rf(struct rtw89_dev *rtwdev)
+{
+	rtw89_write8_clr(rtwdev, R_BE_FEN_RST_ENABLE,
+			 B_BE_FEN_BBPLAT_RSTB | B_BE_FEN_BB_IP_RSTN);
+
+	return 0;
+}
+
 #ifdef CONFIG_PM
 static const struct wiphy_wowlan_support rtw_wowlan_stub_8922a = {
 	.flags = WIPHY_WOWLAN_MAGIC_PKT | WIPHY_WOWLAN_DISCONNECT,
@@ -817,6 +834,8 @@ static const struct wiphy_wowlan_support rtw_wowlan_stub_8922a = {
 #endif
 
 static const struct rtw89_chip_ops rtw8922a_chip_ops = {
+	.enable_bb_rf		= rtw8922a_mac_enable_bb_rf,
+	.disable_bb_rf		= rtw8922a_mac_disable_bb_rf,
 	.set_channel		= rtw8922a_set_channel,
 	.read_efuse		= rtw8922a_read_efuse,
 	.read_phycap		= rtw8922a_read_phycap,
-- 
2.25.1