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wifi: rtw88: usb: Support USB 3 with RTL8812AU

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Add the function to automatically switch the RTL8812AU into USB 3 mode.

Signed-off-by: Bitterblue Smith <rtl8821cerfe2@gmail.com>
Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Link: https://patch.msgid.link/19cda72b-f1f1-4b69-8369-0e4376b646bf@gmail.com
This commit is contained in:
Bitterblue Smith 2024-11-14 17:46:08 +02:00 committed by Ping-Ke Shih
parent 31be3175bd
commit 82a35723a6
1 changed files with 42 additions and 2 deletions
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44
drivers/net/wireless/realtek/rtw88/usb.c
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@ -930,6 +930,32 @@ static void rtw_usb_intf_deinit(struct rtw_dev *rtwdev,
usb_set_intfdata(intf, NULL);
}
static int rtw_usb_switch_mode_old(struct rtw_dev *rtwdev)
{
struct rtw_usb *rtwusb = rtw_get_usb_priv(rtwdev);
enum usb_device_speed cur_speed = rtwusb->udev->speed;
u8 hci_opt;
if (cur_speed == USB_SPEED_HIGH) {
hci_opt = rtw_read8(rtwdev, REG_HCI_OPT_CTRL);
if ((hci_opt & (BIT(2) | BIT(3))) != BIT(3)) {
rtw_write8(rtwdev, REG_HCI_OPT_CTRL, 0x8);
rtw_write8(rtwdev, REG_SYS_SDIO_CTRL, 0x2);
rtw_write8(rtwdev, REG_ACLK_MON, 0x1);
rtw_write8(rtwdev, 0x3d, 0x3);
/* usb disconnect */
rtw_write8(rtwdev, REG_SYS_PW_CTRL + 1, 0x80);
return 1;
}
} else if (cur_speed == USB_SPEED_SUPER) {
rtw_write8_clr(rtwdev, REG_SYS_SDIO_CTRL, BIT(1));
rtw_write8_clr(rtwdev, REG_ACLK_MON, BIT(0));
}
return 0;
}
static int rtw_usb_switch_mode_new(struct rtw_dev *rtwdev)
{
enum usb_device_speed cur_speed;
@ -979,11 +1005,22 @@ static int rtw_usb_switch_mode_new(struct rtw_dev *rtwdev)
return 1;
}
static bool rtw_usb3_chip_old(u8 chip_id)
{
return chip_id == RTW_CHIP_TYPE_8812A;
}
static bool rtw_usb3_chip_new(u8 chip_id)
{
return chip_id == RTW_CHIP_TYPE_8822C ||
chip_id == RTW_CHIP_TYPE_8822B;
}
static int rtw_usb_switch_mode(struct rtw_dev *rtwdev)
{
u8 id = rtwdev->chip->id;
if (id != RTW_CHIP_TYPE_8822C && id != RTW_CHIP_TYPE_8822B)
if (!rtw_usb3_chip_new(id) && !rtw_usb3_chip_old(id))
return 0;
if (!rtwdev->efuse.usb_mode_switch) {
@ -998,7 +1035,10 @@ static int rtw_usb_switch_mode(struct rtw_dev *rtwdev)
return 0;
}
return rtw_usb_switch_mode_new(rtwdev);
if (rtw_usb3_chip_old(id))
return rtw_usb_switch_mode_old(rtwdev);
else
return rtw_usb_switch_mode_new(rtwdev);
}
int rtw_usb_probe(struct usb_interface *intf, const struct usb_device_id *id)