mirror of
https://github.com/libretro/Lakka-LibreELEC.git
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91 lines
2.7 KiB
Diff
91 lines
2.7 KiB
Diff
From 82a35723a67c29f685d7b518962154a73b7163a2 Mon Sep 17 00:00:00 2001
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From: Bitterblue Smith <rtl8821cerfe2@gmail.com>
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Date: Thu, 14 Nov 2024 17:46:08 +0200
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Subject: [PATCH] wifi: rtw88: usb: Support USB 3 with RTL8812AU
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Add the function to automatically switch the RTL8812AU into USB 3 mode.
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Signed-off-by: Bitterblue Smith <rtl8821cerfe2@gmail.com>
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Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
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Link: https://patch.msgid.link/19cda72b-f1f1-4b69-8369-0e4376b646bf@gmail.com
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---
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drivers/net/wireless/realtek/rtw88/usb.c | 44 ++++++++++++++++++++++--
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1 file changed, 42 insertions(+), 2 deletions(-)
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diff --git a/drivers/net/wireless/realtek/rtw88/usb.c b/drivers/net/wireless/realtek/rtw88/usb.c
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index 8d6db68246f1..db1769a4b617 100644
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--- a/drivers/net/wireless/realtek/rtw88/usb.c
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+++ b/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,
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usb_set_intfdata(intf, NULL);
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}
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+static int rtw_usb_switch_mode_old(struct rtw_dev *rtwdev)
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+{
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+ struct rtw_usb *rtwusb = rtw_get_usb_priv(rtwdev);
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+ enum usb_device_speed cur_speed = rtwusb->udev->speed;
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+ u8 hci_opt;
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+
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+ if (cur_speed == USB_SPEED_HIGH) {
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+ hci_opt = rtw_read8(rtwdev, REG_HCI_OPT_CTRL);
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+
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+ if ((hci_opt & (BIT(2) | BIT(3))) != BIT(3)) {
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+ rtw_write8(rtwdev, REG_HCI_OPT_CTRL, 0x8);
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+ rtw_write8(rtwdev, REG_SYS_SDIO_CTRL, 0x2);
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+ rtw_write8(rtwdev, REG_ACLK_MON, 0x1);
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+ rtw_write8(rtwdev, 0x3d, 0x3);
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+ /* usb disconnect */
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+ rtw_write8(rtwdev, REG_SYS_PW_CTRL + 1, 0x80);
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+ return 1;
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+ }
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+ } else if (cur_speed == USB_SPEED_SUPER) {
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+ rtw_write8_clr(rtwdev, REG_SYS_SDIO_CTRL, BIT(1));
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+ rtw_write8_clr(rtwdev, REG_ACLK_MON, BIT(0));
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+ }
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+
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+ return 0;
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+}
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+
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static int rtw_usb_switch_mode_new(struct rtw_dev *rtwdev)
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{
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enum usb_device_speed cur_speed;
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@@ -979,11 +1005,22 @@ static int rtw_usb_switch_mode_new(struct rtw_dev *rtwdev)
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return 1;
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}
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+static bool rtw_usb3_chip_old(u8 chip_id)
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+{
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+ return chip_id == RTW_CHIP_TYPE_8812A;
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+}
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+
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+static bool rtw_usb3_chip_new(u8 chip_id)
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+{
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+ return chip_id == RTW_CHIP_TYPE_8822C ||
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+ chip_id == RTW_CHIP_TYPE_8822B;
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+}
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+
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static int rtw_usb_switch_mode(struct rtw_dev *rtwdev)
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{
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u8 id = rtwdev->chip->id;
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- if (id != RTW_CHIP_TYPE_8822C && id != RTW_CHIP_TYPE_8822B)
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+ if (!rtw_usb3_chip_new(id) && !rtw_usb3_chip_old(id))
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return 0;
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if (!rtwdev->efuse.usb_mode_switch) {
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@@ -998,7 +1035,10 @@ static int rtw_usb_switch_mode(struct rtw_dev *rtwdev)
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return 0;
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}
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- return rtw_usb_switch_mode_new(rtwdev);
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+ if (rtw_usb3_chip_old(id))
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+ return rtw_usb_switch_mode_old(rtwdev);
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+ else
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+ return rtw_usb_switch_mode_new(rtwdev);
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}
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int rtw_usb_probe(struct usb_interface *intf, const struct usb_device_id *id)
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--
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2.43.0
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