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Message-ID: <e7d05bd9-e096-8361-f1b4-3c8b8599a7eb@gmail.com>
Date:   Thu, 10 Nov 2022 15:58:16 +0200
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To:     "linux-wireless@vger.kernel.org" <linux-wireless@vger.kernel.org>
Cc:     Jes Sorensen <Jes.Sorensen@gmail.com>,
        Ping-Ke Shih <pkshih@realtek.com>
From:   Bitterblue Smith <rtl8821cerfe2@gmail.com>
Subject: [PATCH v2 1/3] wifi: rtl8xxxu: Name some bits used in burst init
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Use descriptive names instead of magic numbers.

Suggested-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Bitterblue Smith <rtl8821cerfe2@gmail.com>
---
v2:
 - Change the commit message.
---
 drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_core.c | 10 +++++-----
 drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_regs.h |  6 ++++++
 2 files changed, 11 insertions(+), 5 deletions(-)

diff --git a/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_core.c b/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_core.c
index 839e0546f5ec..e4eb17d03cd7 100644
--- a/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_core.c
+++ b/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_core.c
@@ -3786,16 +3786,16 @@ void rtl8xxxu_init_burst(struct rtl8xxxu_priv *priv)
 	 * For USB high speed set 512B packets
 	 */
 	val8 = rtl8xxxu_read8(priv, REG_RXDMA_PRO_8723B);
-	val8 &= ~(BIT(4) | BIT(5));
-	val8 |= BIT(4);
-	val8 |= BIT(1) | BIT(2) | BIT(3);
+	u8p_replace_bits(&val8, 1, RXDMA_PRO_DMA_BURST_SIZE);
+	u8p_replace_bits(&val8, 3, RXDMA_PRO_DMA_BURST_CNT);
+	val8 |= RXDMA_PRO_DMA_MODE;
 	rtl8xxxu_write8(priv, REG_RXDMA_PRO_8723B, val8);
 
 	/*
 	 * Enable single packet AMPDU
 	 */
 	val8 = rtl8xxxu_read8(priv, REG_HT_SINGLE_AMPDU_8723B);
-	val8 |= BIT(7);
+	val8 |= HT_SINGLE_AMPDU_ENABLE;
 	rtl8xxxu_write8(priv, REG_HT_SINGLE_AMPDU_8723B, val8);
 
 	rtl8xxxu_write16(priv, REG_MAX_AGGR_NUM, 0x0c14);
@@ -3820,7 +3820,7 @@ void rtl8xxxu_init_burst(struct rtl8xxxu_priv *priv)
 
 	/* to prevent mac is reseted by bus. */
 	val8 = rtl8xxxu_read8(priv, REG_RSV_CTRL);
-	val8 |= BIT(5) | BIT(6);
+	val8 |= RSV_CTRL_WLOCK_1C | RSV_CTRL_DIS_PRST;
 	rtl8xxxu_write8(priv, REG_RSV_CTRL, val8);
 }
 
diff --git a/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_regs.h b/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_regs.h
index 04bf77959fba..5d4cac4f4c06 100644
--- a/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_regs.h
+++ b/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_regs.h
@@ -68,6 +68,8 @@
 #define REG_SPS_OCP_CFG			0x0018
 #define REG_8192E_LDOV12_CTRL		0x0014
 #define REG_RSV_CTRL			0x001c
+#define  RSV_CTRL_WLOCK_1C		BIT(5)
+#define  RSV_CTRL_DIS_PRST		BIT(6)
 
 #define REG_RF_CTRL			0x001f
 #define  RF_ENABLE			BIT(0)
@@ -472,6 +474,9 @@
 /* Presumably only found on newer chips such as 8723bu */
 #define REG_RX_DMA_CTRL_8723B		0x0286
 #define REG_RXDMA_PRO_8723B		0x0290
+#define  RXDMA_PRO_DMA_MODE		BIT(1)		/* Set to 0x1. */
+#define  RXDMA_PRO_DMA_BURST_CNT	GENMASK(3, 2)	/* Set to 0x3. */
+#define  RXDMA_PRO_DMA_BURST_SIZE	GENMASK(5, 4)	/* Set to 0x1. */
 
 #define REG_RF_BB_CMD_ADDR		0x02c0
 #define REG_RF_BB_CMD_DATA		0x02c4
@@ -577,6 +582,7 @@
 #define REG_STBC_SETTING		0x04c4
 #define REG_QUEUE_CTRL			0x04c6
 #define REG_HT_SINGLE_AMPDU_8723B	0x04c7
+#define  HT_SINGLE_AMPDU_ENABLE		BIT(7)
 #define REG_PROT_MODE_CTRL		0x04c8
 #define REG_MAX_AGGR_NUM		0x04ca
 #define REG_RTS_MAX_AGGR_NUM		0x04cb
-- 
2.38.0