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From:   Ping-Ke Shih <pkshih@realtek.com>
To:     <kvalo@kernel.org>
CC:     <linux-wireless@vger.kernel.org>
Subject: [PATCH 1/4] wifi: rtw89: read version of analog hardware
Date:   Thu, 30 Mar 2023 21:33:21 +0800
Message-ID: <20230330133324.19538-2-pkshih@realtek.com>
In-Reply-To: <20230330133324.19538-1-pkshih@realtek.com>
References: <20230330133324.19538-1-pkshih@realtek.com>
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The chip contains digital and analog parts, and each of them has its own
version number. This is used by BT coexistence mechanism to make strategy
decision for different analog version.

Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
---
 drivers/net/wireless/realtek/rtw89/core.c | 10 ++++++++++
 drivers/net/wireless/realtek/rtw89/core.h |  2 ++
 drivers/net/wireless/realtek/rtw89/mac.h  |  1 +
 3 files changed, 13 insertions(+)

diff --git a/drivers/net/wireless/realtek/rtw89/core.c b/drivers/net/wireless/realtek/rtw89/core.c
index 489fa7a86160d..323e9088611b3 100644
--- a/drivers/net/wireless/realtek/rtw89/core.c
+++ b/drivers/net/wireless/realtek/rtw89/core.c
@@ -3272,6 +3272,8 @@ void rtw89_core_scan_complete(struct rtw89_dev *rtwdev,
 static void rtw89_read_chip_ver(struct rtw89_dev *rtwdev)
 {
 	const struct rtw89_chip_info *chip = rtwdev->chip;
+	int ret;
+	u8 val;
 	u8 cv;
 
 	cv = rtw89_read32_mask(rtwdev, R_AX_SYS_CFG1, B_AX_CHIP_VER_MASK);
@@ -3283,6 +3285,14 @@ static void rtw89_read_chip_ver(struct rtw89_dev *rtwdev)
 	}
 
 	rtwdev->hal.cv = cv;
+
+	if (chip->chip_id == RTL8852B || chip->chip_id == RTL8851B) {
+		ret = rtw89_mac_read_xtal_si(rtwdev, XTAL_SI_CV, &val);
+		if (!ret)
+			return;
+
+		rtwdev->hal.acv = u8_get_bits(val, XTAL_SI_ACV_MASK);
+	}
 }
 
 static void rtw89_core_setup_phycap(struct rtw89_dev *rtwdev)
diff --git a/drivers/net/wireless/realtek/rtw89/core.h b/drivers/net/wireless/realtek/rtw89/core.h
index e447bfec508b8..323b0ece90183 100644
--- a/drivers/net/wireless/realtek/rtw89/core.h
+++ b/drivers/net/wireless/realtek/rtw89/core.h
@@ -108,6 +108,7 @@ enum rtw89_core_chip_id {
 	RTL8852A,
 	RTL8852B,
 	RTL8852C,
+	RTL8851B,
 };
 
 enum rtw89_cv {
@@ -3321,6 +3322,7 @@ struct rtw89_sub_entity {
 struct rtw89_hal {
 	u32 rx_fltr;
 	u8 cv;
+	u8 acv;
 	u32 sw_amsdu_max_size;
 	u32 antenna_tx;
 	u32 antenna_rx;
diff --git a/drivers/net/wireless/realtek/rtw89/mac.h b/drivers/net/wireless/realtek/rtw89/mac.h
index 8064d3953d7f2..ce07469e684ad 100644
--- a/drivers/net/wireless/realtek/rtw89/mac.h
+++ b/drivers/net/wireless/realtek/rtw89/mac.h
@@ -1116,6 +1116,7 @@ enum rtw89_mac_xtal_si_offset {
 	XTAL_SI_XTAL_XMD_4 = 0x26,
 #define XTAL_SI_LPS_CAP		GENMASK(3, 0)
 	XTAL_SI_CV = 0x41,
+#define XTAL_SI_ACV_MASK	GENMASK(3, 0)
 	XTAL_SI_LOW_ADDR = 0x62,
 #define XTAL_SI_LOW_ADDR_MASK	GENMASK(7, 0)
 	XTAL_SI_CTRL = 0x63,
-- 
2.25.1