Bluetooth: btusb: Add support for latest Apple controllers
The latest Apple Bluetooth controllers with Broadcom chip in it have a small design change. Instead of including a USB hub with mouse and keyboard devices, they are now HID interfaces on the same device. T: Bus=04 Lev=02 Prnt=02 Port=04 Cnt=01 Dev#= 39 Spd=12 MxCh= 0 D: Ver= 2.01 Cls=ef(misc ) Sub=02 Prot=01 MxPS=64 #Cfgs= 1 P: Vendor=05ac ProdID=8290 Rev= 0.79 S: Manufacturer=Broadcom Corp. S: Product=Bluetooth USB Host Controller C:* #Ifs= 6 Cfg#= 1 Atr=e0 MxPwr= 0mA A: FirstIf#= 2 IfCount= 4 Cls=ff(vend.) Sub=01 Prot=01 I:* If#= 0 Alt= 0 #EPs= 1 Cls=03(HID ) Sub=01 Prot=01 Driver=usbhid E: Ad=85(I) Atr=03(Int.) MxPS= 8 Ivl=10ms I:* If#= 1 Alt= 0 #EPs= 1 Cls=03(HID ) Sub=01 Prot=02 Driver=usbhid E: Ad=86(I) Atr=03(Int.) MxPS= 8 Ivl=10ms I:* If#= 2 Alt= 0 #EPs= 3 Cls=ff(vend.) Sub=01 Prot=01 Driver=btusb E: Ad=81(I) Atr=03(Int.) MxPS= 16 Ivl=1ms E: Ad=82(I) Atr=02(Bulk) MxPS= 64 Ivl=0ms E: Ad=02(O) Atr=02(Bulk) MxPS= 64 Ivl=0ms I:* If#= 3 Alt= 0 #EPs= 2 Cls=e0(wlcon) Sub=01 Prot=01 Driver=btusb E: Ad=83(I) Atr=01(Isoc) MxPS= 0 Ivl=1ms E: Ad=03(O) Atr=01(Isoc) MxPS= 0 Ivl=1ms I: If#= 3 Alt= 1 #EPs= 2 Cls=e0(wlcon) Sub=01 Prot=01 Driver=btusb E: Ad=83(I) Atr=01(Isoc) MxPS= 9 Ivl=1ms E: Ad=03(O) Atr=01(Isoc) MxPS= 9 Ivl=1ms I: If#= 3 Alt= 2 #EPs= 2 Cls=e0(wlcon) Sub=01 Prot=01 Driver=btusb E: Ad=83(I) Atr=01(Isoc) MxPS= 17 Ivl=1ms E: Ad=03(O) Atr=01(Isoc) MxPS= 17 Ivl=1ms I: If#= 3 Alt= 3 #EPs= 2 Cls=e0(wlcon) Sub=01 Prot=01 Driver=btusb E: Ad=83(I) Atr=01(Isoc) MxPS= 25 Ivl=1ms E: Ad=03(O) Atr=01(Isoc) MxPS= 25 Ivl=1ms I: If#= 3 Alt= 4 #EPs= 2 Cls=e0(wlcon) Sub=01 Prot=01 Driver=btusb E: Ad=83(I) Atr=01(Isoc) MxPS= 33 Ivl=1ms E: Ad=03(O) Atr=01(Isoc) MxPS= 33 Ivl=1ms I: If#= 3 Alt= 5 #EPs= 2 Cls=e0(wlcon) Sub=01 Prot=01 Driver=btusb E: Ad=83(I) Atr=01(Isoc) MxPS= 49 Ivl=1ms E: Ad=03(O) Atr=01(Isoc) MxPS= 49 Ivl=1ms I:* If#= 4 Alt= 0 #EPs= 2 Cls=ff(vend.) Sub=ff Prot=ff Driver=btusb E: Ad=84(I) Atr=02(Bulk) MxPS= 32 Ivl=0ms E: Ad=04(O) Atr=02(Bulk) MxPS= 32 Ivl=0ms I:* If#= 5 Alt= 0 #EPs= 0 Cls=fe(app. ) Sub=01 Prot=01 Driver=(none) The general layout of Bluetooth devices is that interface 0 is the main interface and interface 1 is for audio data. This design obviously moves it to main interface 2 and audio data on interface 3. Starting with the MacBookPro12,1 (early 2015 models) the new Broadcom BCM943602CS cards are used which show this interface layout. usb 4-1.5: New USB device found, idVendor=05ac, idProduct=8290 usb 4-1.5: New USB device strings: Mfr=1, Product=2, SerialNumber=0 usb 4-1.5: Product: Bluetooth USB Host Controller usb 4-1.5: Manufacturer: Broadcom Corp. Bluetooth: hci0: BCM: chip id 102 build 0243 Bluetooth: hci0: BCM: product 05ac:8290 Bluetooth: hci0: BCM20703A1 Generic USB UHE Apple 20Mhz fcbga_X87 Signed-off-by: Marcel Holtmann <marcel@holtmann.org> Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
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@ -61,6 +61,7 @@ static struct usb_driver btusb_driver;
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#define BTUSB_BCM_APPLE 0x10000
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#define BTUSB_REALTEK 0x20000
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#define BTUSB_BCM2045 0x40000
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#define BTUSB_IFNUM_2 0x80000
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static const struct usb_device_id btusb_table[] = {
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/* Generic Bluetooth USB device */
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@ -74,7 +75,7 @@ static const struct usb_device_id btusb_table[] = {
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/* Apple-specific (Broadcom) devices */
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{ USB_VENDOR_AND_INTERFACE_INFO(0x05ac, 0xff, 0x01, 0x01),
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.driver_info = BTUSB_BCM_APPLE },
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.driver_info = BTUSB_BCM_APPLE | BTUSB_IFNUM_2 },
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/* MediaTek MT76x0E */
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{ USB_DEVICE(0x0e8d, 0x763f) },
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@ -2758,13 +2759,20 @@ static int btusb_probe(struct usb_interface *intf,
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struct usb_endpoint_descriptor *ep_desc;
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struct btusb_data *data;
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struct hci_dev *hdev;
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unsigned ifnum_base;
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int i, err;
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BT_DBG("intf %p id %p", intf, id);
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/* interface numbers are hardcoded in the spec */
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if (intf->cur_altsetting->desc.bInterfaceNumber != 0)
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return -ENODEV;
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if (intf->cur_altsetting->desc.bInterfaceNumber != 0) {
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if (!(id->driver_info & BTUSB_IFNUM_2))
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return -ENODEV;
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if (intf->cur_altsetting->desc.bInterfaceNumber != 2)
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return -ENODEV;
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}
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ifnum_base = intf->cur_altsetting->desc.bInterfaceNumber;
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if (!id->driver_info) {
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const struct usb_device_id *match;
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@ -2880,7 +2888,7 @@ static int btusb_probe(struct usb_interface *intf,
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hdev->set_bdaddr = btbcm_set_bdaddr;
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/* Broadcom LM_DIAG Interface numbers are hardcoded */
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data->diag = usb_ifnum_to_if(data->udev, 2);
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data->diag = usb_ifnum_to_if(data->udev, ifnum_base + 2);
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}
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if (id->driver_info & BTUSB_BCM_APPLE) {
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@ -2889,7 +2897,7 @@ static int btusb_probe(struct usb_interface *intf,
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hdev->set_diag = btusb_bcm_set_diag;
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/* Broadcom LM_DIAG Interface numbers are hardcoded */
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data->diag = usb_ifnum_to_if(data->udev, 2);
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data->diag = usb_ifnum_to_if(data->udev, ifnum_base + 2);
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}
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#endif
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@ -2953,8 +2961,8 @@ static int btusb_probe(struct usb_interface *intf,
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/* AMP controllers do not support SCO packets */
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data->isoc = NULL;
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} else {
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/* Interface numbers are hardcoded in the specification */
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data->isoc = usb_ifnum_to_if(data->udev, 1);
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/* Interface orders are hardcoded in the specification */
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data->isoc = usb_ifnum_to_if(data->udev, ifnum_base + 1);
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}
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if (!reset)
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