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Bluetooth: btusb: Add support for USB based AMP controllers 

The Bluetooth HCI transport specification for USB device defines on how
a standard AMP controller is identified and operated. This patch adds
the needed handling to hook it up to the Bluetooth stack.

Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
hifive-unleashed-5.1
Marcel Holtmann 2015-01-28 20:27:34 -08:00 committed by Johan Hedberg
parent d0ac9eb72b
commit 893ba5440a
1 changed files with 25 additions and 4 deletions
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29
drivers/bluetooth/btusb.c
View File

@ -51,11 +51,15 @@ static struct usb_driver btusb_driver;
#define BTUSB_MARVELL 0x800
#define BTUSB_SWAVE 0x1000
#define BTUSB_INTEL_NEW 0x2000
#define BTUSB_AMP 0x4000
static const struct usb_device_id btusb_table[] = {
/* Generic Bluetooth USB device */
{ USB_DEVICE_INFO(0xe0, 0x01, 0x01) },
/* Generic Bluetooth AMP device */
{ USB_DEVICE_INFO(0xe0, 0x01, 0x04), .driver_info = BTUSB_AMP },
/* Apple-specific (Broadcom) devices */
{ USB_VENDOR_AND_INTERFACE_INFO(0x05ac, 0xff, 0x01, 0x01) },
@ -320,6 +324,7 @@ struct btusb_data {
struct usb_endpoint_descriptor *isoc_rx_ep;
__u8 cmdreq_type;
__u8 cmdreq;
unsigned int sco_num;
int isoc_altsetting;
@ -973,7 +978,7 @@ static struct urb *alloc_ctrl_urb(struct hci_dev *hdev, struct sk_buff *skb)
}
dr->bRequestType = data->cmdreq_type;
dr->bRequest = 0;
dr->bRequest = data->cmdreq;
dr->wIndex = 0;
dr->wValue = 0;
dr->wLength = __cpu_to_le16(skb->len);
@ -2640,7 +2645,13 @@ static int btusb_probe(struct usb_interface *intf,
if (!data->intr_ep || !data->bulk_tx_ep || !data->bulk_rx_ep)
return -ENODEV;
data->cmdreq_type = USB_TYPE_CLASS;
if (id->driver_info & BTUSB_AMP) {
data->cmdreq_type = USB_TYPE_CLASS | 0x01;
data->cmdreq = 0x2b;
} else {
data->cmdreq_type = USB_TYPE_CLASS;
data->cmdreq = 0x00;
}
data->udev = interface_to_usbdev(intf);
data->intf = intf;
@ -2672,6 +2683,11 @@ static int btusb_probe(struct usb_interface *intf,
hdev->bus = HCI_USB;
hci_set_drvdata(hdev, data);
if (id->driver_info & BTUSB_AMP)
hdev->dev_type = HCI_AMP;
else
hdev->dev_type = HCI_BREDR;
data->hdev = hdev;
SET_HCIDEV_DEV(hdev, &intf->dev);
@ -2718,8 +2734,13 @@ static int btusb_probe(struct usb_interface *intf,
if (id->driver_info & BTUSB_ATH3012)
hdev->set_bdaddr = btusb_set_bdaddr_ath3012;
/* Interface numbers are hardcoded in the specification */
data->isoc = usb_ifnum_to_if(data->udev, 1);
if (id->driver_info & BTUSB_AMP) {
/* AMP controllers do not support SCO packets */
data->isoc = NULL;
} else {
/* Interface numbers are hardcoded in the specification */
data->isoc = usb_ifnum_to_if(data->udev, 1);
}
if (!reset)
set_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks);