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Bluetooth: btrtl: Add the support for RTL8851B
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Add the support for RTL8851B BT controller on USB interface.
The necessary firmware will be submitted to linux-firmware project.

Note that the Bluetooth devices WITH the VID=0x0bda would be set the
feature quirk in btrtl_setup_realtek(). It's able to ignore the
feature flag set for the specific VID and PID in blacklist_table[] of
btusb.c. (check [1])

If Realtek Bluetooth chips WITHOUT the VID=0x0bda, it shall be added
the feature flag for the specific VID and PID in blacklist_table[] of
btusb.c. (check [2])

[1] '9ab9235fe5cf ("Bluetooth: btrtl: Enable WBS for the specific
    Realtek devices")'
[2] '73280f13c9bb ("Bluetooth: btusb: Add the more support IDs for
    Realtek RTL8822CE")'

The device info from /sys/kernel/debug/usb/devices as below.

T:  Bus=03 Lev=01 Prnt=01 Port=00 Cnt=01 Dev#= 33 Spd=480  MxCh= 0
D:  Ver= 2.00 Cls=ef(misc ) Sub=02 Prot=01 MxPS=64 #Cfgs=  1
P:  Vendor=0bda ProdID=b851 Rev= 0.00
S:  Manufacturer=Realtek
S:  Product=802.11ax WLAN Adapter
S:  SerialNumber=00E04C885A01
C:* #Ifs= 3 Cfg#= 1 Atr=80 MxPwr=500mA
A:  FirstIf#= 0 IfCount= 2 Cls=e0(wlcon) Sub=01 Prot=01
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= 512 Ivl=0ms
E:  Ad=82(I) Atr=02(Bulk) MxPS= 512 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
I:* If#= 2 Alt= 0 #EPs= 8 Cls=ff(vend.) Sub=ff Prot=ff Driver=(none)
E:  Ad=84(I) Atr=02(Bulk) MxPS= 512 Ivl=0ms
E:  Ad=05(O) Atr=02(Bulk) MxPS= 512 Ivl=0ms
E:  Ad=06(O) Atr=02(Bulk) MxPS= 512 Ivl=0ms
E:  Ad=07(O) Atr=02(Bulk) MxPS= 512 Ivl=0ms
E:  Ad=09(O) Atr=02(Bulk) MxPS= 512 Ivl=0ms
E:  Ad=0a(O) Atr=02(Bulk) MxPS= 512 Ivl=0ms
E:  Ad=0b(O) Atr=02(Bulk) MxPS= 512 Ivl=0ms
E:  Ad=0c(O) Atr=02(Bulk) MxPS= 512 Ivl=0ms

Signed-off-by: Max Chou <max.chou@realtek.com>
Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
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Max Chou authored and Luiz Augusto von Dentz committed Apr 24, 2023
1 parent 9e080b5 commit 7948fe1
Showing 1 changed file with 15 additions and 0 deletions.
15 changes: 15 additions & 0 deletions drivers/bluetooth/btrtl.c
View file
Original file line number Diff line number Diff line change
Expand Up @@ -29,6 +29,7 @@
#define RTL_ROM_LMP_8761A 0x8761
#define RTL_ROM_LMP_8822B 0x8822
#define RTL_ROM_LMP_8852A 0x8852
#define RTL_ROM_LMP_8851B 0x8851
#define RTL_CONFIG_MAGIC 0x8723ab55

#define IC_MATCH_FL_LMPSUBV (1 << 0)
Expand Down Expand Up @@ -65,6 +66,7 @@ enum btrtl_chip_id {
CHIP_ID_8852A = 18,
CHIP_ID_8852B = 20,
CHIP_ID_8852C = 25,
CHIP_ID_8851B = 36,
};

struct id_table {
Expand Down Expand Up @@ -271,6 +273,14 @@ static const struct id_table ic_id_table[] = {
.has_msft_ext = true,
.fw_name = "rtl_bt/rtl8852cu_fw.bin",
.cfg_name = "rtl_bt/rtl8852cu_config" },

/* 8851B */
{ IC_INFO(RTL_ROM_LMP_8851B, 0xb, 0xc, HCI_USB),
.config_needed = false,
.has_rom_version = true,
.has_msft_ext = false,
.fw_name = "rtl_bt/rtl8851bu_fw.bin",
.cfg_name = "rtl_bt/rtl8851bu_config" },
};

static const struct id_table *btrtl_match_ic(u16 lmp_subver, u16 hci_rev,
Expand Down Expand Up @@ -607,6 +617,7 @@ static int rtlbt_parse_firmware(struct hci_dev *hdev,
{ RTL_ROM_LMP_8852A, 18 }, /* 8852A */
{ RTL_ROM_LMP_8852A, 20 }, /* 8852B */
{ RTL_ROM_LMP_8852A, 25 }, /* 8852C */
{ RTL_ROM_LMP_8851B, 36 }, /* 8851B */
};

if (btrtl_dev->fw_len <= 8)
Expand Down Expand Up @@ -1134,6 +1145,7 @@ int btrtl_download_firmware(struct hci_dev *hdev,
case RTL_ROM_LMP_8822B:
case RTL_ROM_LMP_8852A:
case RTL_ROM_LMP_8703B:
case RTL_ROM_LMP_8851B:
return btrtl_setup_rtl8723b(hdev, btrtl_dev);
default:
rtl_dev_info(hdev, "assuming no firmware upload needed");
Expand All @@ -1158,6 +1170,7 @@ void btrtl_set_quirks(struct hci_dev *hdev, struct btrtl_device_info *btrtl_dev)
case CHIP_ID_8852A:
case CHIP_ID_8852B:
case CHIP_ID_8852C:
case CHIP_ID_8851B:
set_bit(HCI_QUIRK_VALID_LE_STATES, &hdev->quirks);
set_bit(HCI_QUIRK_WIDEBAND_SPEECH_SUPPORTED, &hdev->quirks);

Expand Down Expand Up @@ -1370,3 +1383,5 @@ MODULE_FIRMWARE("rtl_bt/rtl8852bu_fw.bin");
MODULE_FIRMWARE("rtl_bt/rtl8852bu_config.bin");
MODULE_FIRMWARE("rtl_bt/rtl8852cu_fw.bin");
MODULE_FIRMWARE("rtl_bt/rtl8852cu_config.bin");
MODULE_FIRMWARE("rtl_bt/rtl8851bu_fw.bin");
MODULE_FIRMWARE("rtl_bt/rtl8851bu_config.bin");

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