[RFC] Bluetooth: btusb: Set reset quirk for A-Link and Medialink devices
From: Andrei Emeltchenko <hidden>
Date: 2012-08-09 15:03:32
Subsystem:
bluetooth drivers, the rest · Maintainers:
Marcel Holtmann, Luiz Augusto von Dentz, Linus Torvalds
From: Andrei Emeltchenko <redacted> Broadcom devices A-LINK (0a5c:2148) and Medialink (0a5c:2198) works more stable when setting HCI_QUIRK_RESET_ON_CLOSE. Without this patch they do not always come up after reset and down. --- drivers/bluetooth/btusb.c | 8 ++++++++ 1 file changed, 8 insertions(+)
diff --git a/drivers/bluetooth/btusb.c b/drivers/bluetooth/btusb.c
index f637c25..57ca6fd 100644
--- a/drivers/bluetooth/btusb.c
+++ b/drivers/bluetooth/btusb.c@@ -47,6 +47,7 @@ static struct usb_driver btusb_driver; #define BTUSB_BROKEN_ISOC 0x20 #define BTUSB_WRONG_SCO_MTU 0x40 #define BTUSB_ATH3012 0x80 +#define BTUSB_BCM_RESET_QUIRK 0x100 static struct usb_device_id btusb_table[] = { /* Generic Bluetooth USB device */
@@ -149,6 +150,10 @@ static struct usb_device_id blacklist_table[] = { { USB_DEVICE(0x0a5c, 0x2039), .driver_info = BTUSB_WRONG_SCO_MTU }, { USB_DEVICE(0x0a5c, 0x2101), .driver_info = BTUSB_WRONG_SCO_MTU }, + /* Broadcom chips works better with reset quirk */ + { USB_DEVICE(0x0a5c, 0x2148), .driver_info = BTUSB_BCM_RESET_QUIRK }, + { USB_DEVICE(0x0a5c, 0x2198), .driver_info = BTUSB_BCM_RESET_QUIRK }, + /* IBM/Lenovo ThinkPad with Broadcom chip */ { USB_DEVICE(0x0a5c, 0x201e), .driver_info = BTUSB_WRONG_SCO_MTU }, { USB_DEVICE(0x0a5c, 0x2110), .driver_info = BTUSB_WRONG_SCO_MTU },
@@ -1023,6 +1028,9 @@ static int btusb_probe(struct usb_interface *intf, set_bit(HCI_QUIRK_FIXUP_BUFFER_SIZE, &hdev->quirks); } + if (id->driver_info & BTUSB_BCM_RESET_QUIRK) + set_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks); + if (id->driver_info & BTUSB_BROKEN_ISOC) data->isoc = NULL;
--
1.7.9.5