Hi! Paul,
If the USB VID is 0x0bda, it will be determined to Realtek device as below.
/* Realtek Bluetooth devices */
{ USB_VENDOR_AND_INTERFACE_INFO(0x0bda, 0xe0, 0x01, 0x01),
.driver_info = BTUSB_REALTEK },
In btrtl.c, btrtl_setup_realtek() will judge what the chip is and start the initialization for firmware download.
Hence, PID is not necessary.
However, I will send the v2 for the ID info. Thanks for the advice.
BRs,
Max
-----Original Message-----
From: Paul Menzel <pmenzel@xxxxxxxxxxxxx>
Sent: Tuesday, December 26, 2023 4:39 PM
To: Max Chou <max.chou@xxxxxxxxxxx>
Cc: marcel@xxxxxxxxxxxx; johan.hedberg@xxxxxxxxx; luiz.dentz@xxxxxxxxx; linux-bluetooth@xxxxxxxxxxxxxxx; linux-kernel@xxxxxxxxxxxxxxx; alex_lu@xxxxxxxxxxxxxx; Hilda Wu <hildawu@xxxxxxxxxxx>; Karen Hsu <karenhsu@xxxxxxxxxxx>
Subject: Re: [PATCH] Bluetooth: btrtl: Add the support for RTL8852BT/RTL8852BE-VT
External mail.
Dear Max,
Thank you for your patch.
Am 26.12.23 um 02:57 schrieb max.chou@xxxxxxxxxxx:
> From: Max Chou <max.chou@xxxxxxxxxxx>
>
> Add the support for RTL8852BT/RTL8852BE-VT BT controller on USB interface.
It’d be great if you stated, how it differs from the existing devices.
Judging from your diff, only the ids need to be added.
> 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>
> ---
> drivers/bluetooth/btrtl.c | 14 ++++++++++++++
> 1 file changed, 14 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");
Should btu be ordered before bu?
> MODULE_FIRMWARE("rtl_bt/rtl8852cu_fw.bin");
> MODULE_FIRMWARE("rtl_bt/rtl8852cu_fw_v2.bin");
> MODULE_FIRMWARE("rtl_bt/rtl8852cu_config.bin");
Kind regards,
Paul
