RTL8852AU, RTL8852CU, and RTL8922AU will need a different TX channel
to bulk out endpoint mapping, so create a new struct rtw89_usb_info
and move the mapping there. Initialise it in each chip's driver.

Struct rtw89_usb_info will also hold some registers which are located
at different offsets in RTL8852CU compared to the other wifi 6 chips.

Signed-off-by: Bitterblue Smith <rtl8821cerfe2@gmail.com>
---
v2:
 - No change, messed up sending v1.

v3:
 - Move the bulk out map to the new struct rtw89_usb_info instead of
   adding the new mapping to rtw89_usb_get_bulkout_id().
---
 drivers/net/wireless/realtek/rtw89/core.h     |  2 ++
 .../net/wireless/realtek/rtw89/rtw8851bu.c    | 15 +++++++++++
 .../net/wireless/realtek/rtw89/rtw8852bu.c    | 15 +++++++++++
 drivers/net/wireless/realtek/rtw89/usb.c      | 25 +++----------------
 drivers/net/wireless/realtek/rtw89/usb.h      |  5 ++++
 5 files changed, 40 insertions(+), 22 deletions(-)

diff --git a/drivers/net/wireless/realtek/rtw89/core.h b/drivers/net/wireless/realtek/rtw89/core.h
index ff3362d1f602..779b6fa87824 100644
--- a/drivers/net/wireless/realtek/rtw89/core.h
+++ b/drivers/net/wireless/realtek/rtw89/core.h
@@ -15,6 +15,7 @@
 
 struct rtw89_dev;
 struct rtw89_pci_info;
+struct rtw89_usb_info;
 struct rtw89_mac_gen_def;
 struct rtw89_phy_gen_def;
 struct rtw89_fw_blacklist;
@@ -4510,6 +4511,7 @@ struct rtw89_chip_variant {
 
 union rtw89_bus_info {
 	const struct rtw89_pci_info *pci;
+	const struct rtw89_usb_info *usb;
 };
 
 struct rtw89_driver_info {
diff --git a/drivers/net/wireless/realtek/rtw89/rtw8851bu.c b/drivers/net/wireless/realtek/rtw89/rtw8851bu.c
index c3722547c6b0..95b8fb1a6425 100644
--- a/drivers/net/wireless/realtek/rtw89/rtw8851bu.c
+++ b/drivers/net/wireless/realtek/rtw89/rtw8851bu.c
@@ -7,10 +7,25 @@
 #include "rtw8851b.h"
 #include "usb.h"
 
+static const struct rtw89_usb_info rtw8851b_usb_info = {
+	.bulkout_id = {
+		[RTW89_DMA_ACH0] = 3,
+		[RTW89_DMA_ACH1] = 4,
+		[RTW89_DMA_ACH2] = 5,
+		[RTW89_DMA_ACH3] = 6,
+		[RTW89_DMA_B0MG] = 0,
+		[RTW89_DMA_B0HI] = 1,
+		[RTW89_DMA_H2C] = 2,
+	},
+};
+
 static const struct rtw89_driver_info rtw89_8851bu_info = {
 	.chip = &rtw8851b_chip_info,
 	.variant = NULL,
 	.quirks = NULL,
+	.bus = {
+		.usb = &rtw8851b_usb_info,
+	}
 };
 
 static const struct usb_device_id rtw_8851bu_id_table[] = {
diff --git a/drivers/net/wireless/realtek/rtw89/rtw8852bu.c b/drivers/net/wireless/realtek/rtw89/rtw8852bu.c
index b315cb997758..62fccf441c10 100644
--- a/drivers/net/wireless/realtek/rtw89/rtw8852bu.c
+++ b/drivers/net/wireless/realtek/rtw89/rtw8852bu.c
@@ -7,10 +7,25 @@
 #include "rtw8852b.h"
 #include "usb.h"
 
+static const struct rtw89_usb_info rtw8852b_usb_info = {
+	.bulkout_id = {
+		[RTW89_DMA_ACH0] = 3,
+		[RTW89_DMA_ACH1] = 4,
+		[RTW89_DMA_ACH2] = 5,
+		[RTW89_DMA_ACH3] = 6,
+		[RTW89_DMA_B0MG] = 0,
+		[RTW89_DMA_B0HI] = 1,
+		[RTW89_DMA_H2C] = 2,
+	},
+};
+
 static const struct rtw89_driver_info rtw89_8852bu_info = {
 	.chip = &rtw8852b_chip_info,
 	.variant = NULL,
 	.quirks = NULL,
+	.bus = {
+		.usb = &rtw8852b_usb_info,
+	}
 };
 
 static const struct usb_device_id rtw_8852bu_id_table[] = {
diff --git a/drivers/net/wireless/realtek/rtw89/usb.c b/drivers/net/wireless/realtek/rtw89/usb.c
index 6cf89aee252e..3b1ed87e706b 100644
--- a/drivers/net/wireless/realtek/rtw89/usb.c
+++ b/drivers/net/wireless/realtek/rtw89/usb.c
@@ -167,27 +167,6 @@ rtw89_usb_ops_check_and_reclaim_tx_resource(struct rtw89_dev *rtwdev,
 	return 42; /* TODO some kind of calculation? */
 }
 
-static u8 rtw89_usb_get_bulkout_id(u8 ch_dma)
-{
-	switch (ch_dma) {
-	case RTW89_DMA_ACH0:
-		return 3;
-	case RTW89_DMA_ACH1:
-		return 4;
-	case RTW89_DMA_ACH2:
-		return 5;
-	case RTW89_DMA_ACH3:
-		return 6;
-	default:
-	case RTW89_DMA_B0MG:
-		return 0;
-	case RTW89_DMA_B0HI:
-		return 1;
-	case RTW89_DMA_H2C:
-		return 2;
-	}
-}
-
 static void rtw89_usb_write_port_complete(struct urb *urb)
 {
 	struct rtw89_usb_tx_ctrl_block *txcb = urb->context;
@@ -249,9 +228,10 @@ static int rtw89_usb_write_port(struct rtw89_dev *rtwdev, u8 ch_dma,
 				void *data, int len, void *context)
 {
 	struct rtw89_usb *rtwusb = rtw89_usb_priv(rtwdev);
+	const struct rtw89_usb_info *info = rtwusb->info;
 	struct usb_device *usbd = rtwusb->udev;
 	struct urb *urb;
-	u8 bulkout_id = rtw89_usb_get_bulkout_id(ch_dma);
+	u8 bulkout_id = info->bulkout_id[ch_dma];
 	unsigned int pipe;
 	int ret;
 
@@ -949,6 +929,7 @@ int rtw89_usb_probe(struct usb_interface *intf,
 
 	rtwusb = rtw89_usb_priv(rtwdev);
 	rtwusb->rtwdev = rtwdev;
+	rtwusb->info = info->bus.usb;
 
 	rtwdev->hci.ops = &rtw89_usb_ops;
 	rtwdev->hci.type = RTW89_HCI_TYPE_USB;
diff --git a/drivers/net/wireless/realtek/rtw89/usb.h b/drivers/net/wireless/realtek/rtw89/usb.h
index c1b4bfa20979..a27c698a424c 100644
--- a/drivers/net/wireless/realtek/rtw89/usb.h
+++ b/drivers/net/wireless/realtek/rtw89/usb.h
@@ -20,6 +20,10 @@
 #define RTW89_MAX_ENDPOINT_NUM		9
 #define RTW89_MAX_BULKOUT_NUM		7
 
+struct rtw89_usb_info {
+	u8 bulkout_id[RTW89_DMA_CH_NUM];
+};
+
 struct rtw89_usb_rx_ctrl_block {
 	struct rtw89_dev *rtwdev;
 	struct urb *rx_urb;
@@ -35,6 +39,7 @@ struct rtw89_usb_tx_ctrl_block {
 struct rtw89_usb {
 	struct rtw89_dev *rtwdev;
 	struct usb_device *udev;
+	const struct rtw89_usb_info *info;
 
 	__le32 *vendor_req_buf;
 
-- 
2.50.1