[PATCH v2] Bluetooth: btrtl: Add the support for RTL8852BT/RTL8852BE-VT
From: max.chou
Date: Tue Dec 26 2023 - 06:45:41 EST
From: Max Chou <max.chou@xxxxxxxxxxx>
Add the support for RTL8852BT/RTL8852BE-VT BT controller on USB interface.
The necessary firmware will be submitted to linux-firmware project.
The device info from /sys/kernel/debug/usb/devices as below.
T: Bus=02 Lev=02 Prnt=02 Port=05 Cnt=01 Dev#= 8 Spd=12 MxCh= 0
D: Ver= 1.00 Cls=e0(wlcon) Sub=01 Prot=01 MxPS=64 #Cfgs= 1
P: Vendor=0bda ProdID=8520 Rev= 0.00
S: Manufacturer=Realtek
S: Product=Bluetooth Radio
S: SerialNumber=00e04c000001
C:* #Ifs= 2 Cfg#= 1 Atr=e0 MxPwr=500mA
I:* If#= 0 Alt= 0 #EPs= 3 Cls=e0(wlcon) Sub=01 Prot=01 Driver=btusb
E: Ad=81(I) Atr=03(Int.) MxPS= 16 Ivl=1ms
E: Ad=02(O) Atr=02(Bulk) MxPS= 64 Ivl=0ms
E: Ad=82(I) Atr=02(Bulk) MxPS= 64 Ivl=0ms
I:* If#= 1 Alt= 0 #EPs= 2 Cls=e0(wlcon) Sub=01 Prot=01 Driver=btusb
E: Ad=03(O) Atr=01(Isoc) MxPS= 0 Ivl=1ms
E: Ad=83(I) Atr=01(Isoc) MxPS= 0 Ivl=1ms
I: If#= 1 Alt= 1 #EPs= 2 Cls=e0(wlcon) Sub=01 Prot=01 Driver=btusb
E: Ad=03(O) Atr=01(Isoc) MxPS= 9 Ivl=1ms
E: Ad=83(I) Atr=01(Isoc) MxPS= 9 Ivl=1ms
I: If#= 1 Alt= 2 #EPs= 2 Cls=e0(wlcon) Sub=01 Prot=01 Driver=btusb
E: Ad=03(O) Atr=01(Isoc) MxPS= 17 Ivl=1ms
E: Ad=83(I) Atr=01(Isoc) MxPS= 17 Ivl=1ms
I: If#= 1 Alt= 3 #EPs= 2 Cls=e0(wlcon) Sub=01 Prot=01 Driver=btusb
E: Ad=03(O) Atr=01(Isoc) MxPS= 25 Ivl=1ms
E: Ad=83(I) Atr=01(Isoc) MxPS= 25 Ivl=1ms
I: If#= 1 Alt= 4 #EPs= 2 Cls=e0(wlcon) Sub=01 Prot=01 Driver=btusb
E: Ad=03(O) Atr=01(Isoc) MxPS= 33 Ivl=1ms
E: Ad=83(I) Atr=01(Isoc) MxPS= 33 Ivl=1ms
I: If#= 1 Alt= 5 #EPs= 2 Cls=e0(wlcon) Sub=01 Prot=01 Driver=btusb
E: Ad=03(O) Atr=01(Isoc) MxPS= 49 Ivl=1ms
E: Ad=83(I) Atr=01(Isoc) MxPS= 49 Ivl=1ms
Signed-off-by: Max Chou <max.chou@xxxxxxxxxxx>
---
changes in v2:
- Add the USB ID for RTL8852BT/RTL8852BE-VT
---
drivers/bluetooth/btrtl.c | 14 ++++++++++++++
drivers/bluetooth/btusb.c | 3 +++
2 files changed, 17 insertions(+)
diff --git a/drivers/bluetooth/btrtl.c b/drivers/bluetooth/btrtl.c
index 277d039ecbb4..cc50de69e8dc 100644
--- a/drivers/bluetooth/btrtl.c
+++ b/drivers/bluetooth/btrtl.c
@@ -69,6 +69,7 @@ enum btrtl_chip_id {
CHIP_ID_8852B = 20,
CHIP_ID_8852C = 25,
CHIP_ID_8851B = 36,
+ CHIP_ID_8852BT = 47,
};
struct id_table {
@@ -307,6 +308,15 @@ static const struct id_table ic_id_table[] = {
.fw_name = "rtl_bt/rtl8851bu_fw",
.cfg_name = "rtl_bt/rtl8851bu_config",
.hw_info = "rtl8851bu" },
+
+ /* 8852BT/8852BE-VT */
+ { IC_INFO(RTL_ROM_LMP_8852A, 0x87, 0xc, HCI_USB),
+ .config_needed = false,
+ .has_rom_version = true,
+ .has_msft_ext = true,
+ .fw_name = "rtl_bt/rtl8852btu_fw",
+ .cfg_name = "rtl_bt/rtl8852btu_config",
+ .hw_info = "rtl8852btu" },
};
static const struct id_table *btrtl_match_ic(u16 lmp_subver, u16 hci_rev,
@@ -645,6 +655,7 @@ static int rtlbt_parse_firmware(struct hci_dev *hdev,
{ RTL_ROM_LMP_8852A, 20 }, /* 8852B */
{ RTL_ROM_LMP_8852A, 25 }, /* 8852C */
{ RTL_ROM_LMP_8851B, 36 }, /* 8851B */
+ { RTL_ROM_LMP_8852A, 47 }, /* 8852BT */
};
if (btrtl_dev->fw_len <= 8)
@@ -1275,6 +1286,7 @@ void btrtl_set_quirks(struct hci_dev *hdev, struct btrtl_device_info *btrtl_dev)
case CHIP_ID_8852B:
case CHIP_ID_8852C:
case CHIP_ID_8851B:
+ case CHIP_ID_8852BT:
set_bit(HCI_QUIRK_VALID_LE_STATES, &hdev->quirks);
set_bit(HCI_QUIRK_WIDEBAND_SPEECH_SUPPORTED, &hdev->quirks);
@@ -1505,6 +1517,8 @@ MODULE_FIRMWARE("rtl_bt/rtl8852bs_fw.bin");
MODULE_FIRMWARE("rtl_bt/rtl8852bs_config.bin");
MODULE_FIRMWARE("rtl_bt/rtl8852bu_fw.bin");
MODULE_FIRMWARE("rtl_bt/rtl8852bu_config.bin");
+MODULE_FIRMWARE("rtl_bt/rtl8852btu_fw.bin");
+MODULE_FIRMWARE("rtl_bt/rtl8852btu_config.bin");
MODULE_FIRMWARE("rtl_bt/rtl8852cu_fw.bin");
MODULE_FIRMWARE("rtl_bt/rtl8852cu_fw_v2.bin");
MODULE_FIRMWARE("rtl_bt/rtl8852cu_config.bin");
diff --git a/drivers/bluetooth/btusb.c b/drivers/bluetooth/btusb.c
index 7835170b1d66..a0a317bac095 100644
--- a/drivers/bluetooth/btusb.c
+++ b/drivers/bluetooth/btusb.c
@@ -553,6 +553,9 @@ static const struct usb_device_id quirks_table[] = {
{ USB_DEVICE(0x13d3, 0x3572), .driver_info = BTUSB_REALTEK |
BTUSB_WIDEBAND_SPEECH },
+ /* Realtek 8852BT/8852BE-VT Bluetooth devices */
+ { USB_DEVICE(0x0bda, 0x8520), .driver_info = BTUSB_REALTEK |
+ BTUSB_WIDEBAND_SPEECH },
/* Realtek Bluetooth devices */
{ USB_VENDOR_AND_INTERFACE_INFO(0x0bda, 0xe0, 0x01, 0x01),
.driver_info = BTUSB_REALTEK },
--
2.34.1