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From:   Ping-Ke Shih <pkshih@realtek.com>
To:     <kvalo@kernel.org>
CC:     <linux-wireless@vger.kernel.org>
Subject: [PATCH v2 3/9] wifi: rtw89: add DMA busy checking bits to chip info
Date:   Tue, 27 Sep 2022 14:26:05 +0800
Message-ID: <20220927062611.30484-4-pkshih@realtek.com>
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8852B has less DMA channels, so its checking bits are different from other
chips.

Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
---
 drivers/net/wireless/realtek/rtw89/pci.c       | 10 +++++-----
 drivers/net/wireless/realtek/rtw89/pci.h       |  9 ++++++++-
 drivers/net/wireless/realtek/rtw89/rtw8852ae.c |  2 +-
 drivers/net/wireless/realtek/rtw89/rtw8852be.c |  6 ++++++
 drivers/net/wireless/realtek/rtw89/rtw8852ce.c |  2 +-
 5 files changed, 21 insertions(+), 8 deletions(-)

diff --git a/drivers/net/wireless/realtek/rtw89/pci.c b/drivers/net/wireless/realtek/rtw89/pci.c
index 002d3ce0e35b2..957f4e550a7ef 100644
--- a/drivers/net/wireless/realtek/rtw89/pci.c
+++ b/drivers/net/wireless/realtek/rtw89/pci.c
@@ -2272,19 +2272,19 @@ static int rtw89_poll_txdma_ch_idle_pcie(struct rtw89_dev *rtwdev)
 {
 	const struct rtw89_pci_info *info = rtwdev->pci_info;
 	u32 ret, check, dma_busy;
-	u32 dma_busy1 = info->dma_busy1_reg;
+	u32 dma_busy1 = info->dma_busy1.addr;
 	u32 dma_busy2 = info->dma_busy2_reg;
 
-	check = B_AX_ACH0_BUSY | B_AX_ACH1_BUSY | B_AX_ACH2_BUSY |
-		B_AX_ACH3_BUSY | B_AX_ACH4_BUSY | B_AX_ACH5_BUSY |
-		B_AX_ACH6_BUSY | B_AX_ACH7_BUSY | B_AX_CH8_BUSY |
-		B_AX_CH9_BUSY | B_AX_CH12_BUSY;
+	check = info->dma_busy1.mask;
 
 	ret = read_poll_timeout(rtw89_read32, dma_busy, (dma_busy & check) == 0,
 				10, 100, false, rtwdev, dma_busy1);
 	if (ret)
 		return ret;
 
+	if (!dma_busy2)
+		return 0;
+
 	check = B_AX_CH10_BUSY | B_AX_CH11_BUSY;
 
 	ret = read_poll_timeout(rtw89_read32, dma_busy, (dma_busy & check) == 0,
diff --git a/drivers/net/wireless/realtek/rtw89/pci.h b/drivers/net/wireless/realtek/rtw89/pci.h
index 391058de47ec5..e49ffc9cf7903 100644
--- a/drivers/net/wireless/realtek/rtw89/pci.h
+++ b/drivers/net/wireless/realtek/rtw89/pci.h
@@ -468,6 +468,13 @@
 #define B_AX_ACH0_BUSY			BIT(8)
 #define B_AX_RPQ_BUSY			BIT(1)
 #define B_AX_RXQ_BUSY			BIT(0)
+#define DMA_BUSY1_CHECK		(B_AX_ACH0_BUSY | B_AX_ACH1_BUSY | B_AX_ACH2_BUSY | \
+				 B_AX_ACH3_BUSY | B_AX_ACH4_BUSY | B_AX_ACH5_BUSY | \
+				 B_AX_ACH6_BUSY | B_AX_ACH7_BUSY | B_AX_CH8_BUSY | \
+				 B_AX_CH9_BUSY | B_AX_CH12_BUSY)
+#define DMA_BUSY1_CHECK_V1	(B_AX_ACH0_BUSY | B_AX_ACH1_BUSY | B_AX_ACH2_BUSY | \
+				 B_AX_ACH3_BUSY | B_AX_CH8_BUSY | B_AX_CH9_BUSY | \
+				 B_AX_CH12_BUSY)
 
 #define R_AX_PCIE_DMA_BUSY2	0x131C
 #define B_AX_CH11_BUSY			BIT(1)
@@ -754,7 +761,7 @@ struct rtw89_pci_info {
 	u32 txbd_rwptr_clr2_reg;
 	struct rtw89_reg_def dma_stop1;
 	struct rtw89_reg_def dma_stop2;
-	u32 dma_busy1_reg;
+	struct rtw89_reg_def dma_busy1;
 	u32 dma_busy2_reg;
 	u32 dma_busy3_reg;
 
diff --git a/drivers/net/wireless/realtek/rtw89/rtw8852ae.c b/drivers/net/wireless/realtek/rtw89/rtw8852ae.c
index 48485bd9c149f..0cd8c0c44d19d 100644
--- a/drivers/net/wireless/realtek/rtw89/rtw8852ae.c
+++ b/drivers/net/wireless/realtek/rtw89/rtw8852ae.c
@@ -35,7 +35,7 @@ static const struct rtw89_pci_info rtw8852a_pci_info = {
 	.txbd_rwptr_clr2_reg	= R_AX_TXBD_RWPTR_CLR2,
 	.dma_stop1		= {R_AX_PCIE_DMA_STOP1, B_AX_TX_STOP1_MASK},
 	.dma_stop2		= {R_AX_PCIE_DMA_STOP2, B_AX_TX_STOP2_ALL},
-	.dma_busy1_reg		= R_AX_PCIE_DMA_BUSY1,
+	.dma_busy1		= {R_AX_PCIE_DMA_BUSY1, DMA_BUSY1_CHECK},
 	.dma_busy2_reg		= R_AX_PCIE_DMA_BUSY2,
 	.dma_busy3_reg		= R_AX_PCIE_DMA_BUSY1,
 
diff --git a/drivers/net/wireless/realtek/rtw89/rtw8852be.c b/drivers/net/wireless/realtek/rtw89/rtw8852be.c
index 4590535841be3..7bf95c38d3eb2 100644
--- a/drivers/net/wireless/realtek/rtw89/rtw8852be.c
+++ b/drivers/net/wireless/realtek/rtw89/rtw8852be.c
@@ -9,6 +9,12 @@
 #include "reg.h"
 
 static const struct rtw89_pci_info rtw8852b_pci_info = {
+	.dma_stop1		= {R_AX_PCIE_DMA_STOP1, B_AX_TX_STOP1_MASK_V1},
+	.dma_stop2		= {0},
+	.dma_busy1		= {R_AX_PCIE_DMA_BUSY1, DMA_BUSY1_CHECK_V1},
+	.dma_busy2_reg		= 0,
+	.dma_busy3_reg		= R_AX_PCIE_DMA_BUSY1,
+
 	.tx_dma_ch_mask		= BIT(RTW89_TXCH_ACH4) | BIT(RTW89_TXCH_ACH5) |
 				  BIT(RTW89_TXCH_ACH6) | BIT(RTW89_TXCH_ACH7) |
 				  BIT(RTW89_TXCH_CH10) | BIT(RTW89_TXCH_CH11),
diff --git a/drivers/net/wireless/realtek/rtw89/rtw8852ce.c b/drivers/net/wireless/realtek/rtw89/rtw8852ce.c
index c7370f5df8b54..35901f64d17de 100644
--- a/drivers/net/wireless/realtek/rtw89/rtw8852ce.c
+++ b/drivers/net/wireless/realtek/rtw89/rtw8852ce.c
@@ -44,7 +44,7 @@ static const struct rtw89_pci_info rtw8852c_pci_info = {
 	.txbd_rwptr_clr2_reg	= R_AX_TXBD_RWPTR_CLR2_V1,
 	.dma_stop1		= {R_AX_HAXI_DMA_STOP1, B_AX_TX_STOP1_MASK},
 	.dma_stop2		= {R_AX_HAXI_DMA_STOP2, B_AX_TX_STOP2_ALL},
-	.dma_busy1_reg		= R_AX_HAXI_DMA_BUSY1,
+	.dma_busy1		= {R_AX_HAXI_DMA_BUSY1, DMA_BUSY1_CHECK},
 	.dma_busy2_reg		= R_AX_HAXI_DMA_BUSY2,
 	.dma_busy3_reg		= R_AX_HAXI_DMA_BUSY3,
 
-- 
2.25.1