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-rw-r--r--drivers/bluetooth/hci_usb.c6
-rw-r--r--drivers/bluetooth/hci_usb.h1
-rw-r--r--include/net/bluetooth/hci.h3
-rw-r--r--net/bluetooth/hci_event.c14
4 files changed, 20 insertions, 4 deletions
diff --git a/drivers/bluetooth/hci_usb.c b/drivers/bluetooth/hci_usb.c
index 987a3dff8af9..6a0c2230f82f 100644
--- a/drivers/bluetooth/hci_usb.c
+++ b/drivers/bluetooth/hci_usb.c
@@ -122,6 +122,9 @@ static struct usb_device_id blacklist_ids[] = {
/* RTX Telecom based adapter with buggy SCO support */
{ USB_DEVICE(0x0400, 0x0807), .driver_info = HCI_BROKEN_ISOC },
+ /* Belkin F8T012 */
+ { USB_DEVICE(0x050d, 0x0012), .driver_info = HCI_WRONG_SCO_MTU },
+
/* Digianswer devices */
{ USB_DEVICE(0x08fd, 0x0001), .driver_info = HCI_DIGIANSWER },
{ USB_DEVICE(0x08fd, 0x0002), .driver_info = HCI_IGNORE },
@@ -987,6 +990,9 @@ static int hci_usb_probe(struct usb_interface *intf, const struct usb_device_id
if (reset || id->driver_info & HCI_RESET)
set_bit(HCI_QUIRK_RESET_ON_INIT, &hdev->quirks);
+ if (id->driver_info & HCI_WRONG_SCO_MTU)
+ set_bit(HCI_QUIRK_FIXUP_BUFFER_SIZE, &hdev->quirks);
+
if (id->driver_info & HCI_SNIFFER) {
if (le16_to_cpu(udev->descriptor.bcdDevice) > 0x997)
set_bit(HCI_QUIRK_RAW_DEVICE, &hdev->quirks);
diff --git a/drivers/bluetooth/hci_usb.h b/drivers/bluetooth/hci_usb.h
index 37100a6ea1a8..963fc55cdc85 100644
--- a/drivers/bluetooth/hci_usb.h
+++ b/drivers/bluetooth/hci_usb.h
@@ -35,6 +35,7 @@
#define HCI_SNIFFER 0x10
#define HCI_BCM92035 0x20
#define HCI_BROKEN_ISOC 0x40
+#define HCI_WRONG_SCO_MTU 0x80
#define HCI_MAX_IFACE_NUM 3
diff --git a/include/net/bluetooth/hci.h b/include/net/bluetooth/hci.h
index b06a2d2f63d2..99c53f6b8252 100644
--- a/include/net/bluetooth/hci.h
+++ b/include/net/bluetooth/hci.h
@@ -54,7 +54,8 @@
/* HCI device quirks */
enum {
HCI_QUIRK_RESET_ON_INIT,
- HCI_QUIRK_RAW_DEVICE
+ HCI_QUIRK_RAW_DEVICE,
+ HCI_QUIRK_FIXUP_BUFFER_SIZE
};
/* HCI device flags */
diff --git a/net/bluetooth/hci_event.c b/net/bluetooth/hci_event.c
index 618bacee1b1c..f41cf1a6c11a 100644
--- a/net/bluetooth/hci_event.c
+++ b/net/bluetooth/hci_event.c
@@ -319,9 +319,17 @@ static void hci_cc_info_param(struct hci_dev *hdev, __u16 ocf, struct sk_buff *s
}
hdev->acl_mtu = __le16_to_cpu(bs->acl_mtu);
- hdev->sco_mtu = bs->sco_mtu ? bs->sco_mtu : 64;
- hdev->acl_pkts = hdev->acl_cnt = __le16_to_cpu(bs->acl_max_pkt);
- hdev->sco_pkts = hdev->sco_cnt = __le16_to_cpu(bs->sco_max_pkt);
+ hdev->sco_mtu = bs->sco_mtu;
+ hdev->acl_pkts = __le16_to_cpu(bs->acl_max_pkt);
+ hdev->sco_pkts = __le16_to_cpu(bs->sco_max_pkt);
+
+ if (test_bit(HCI_QUIRK_FIXUP_BUFFER_SIZE, &hdev->quirks)) {
+ hdev->sco_mtu = 64;
+ hdev->sco_pkts = 8;
+ }
+
+ hdev->acl_cnt = hdev->acl_pkts;
+ hdev->sco_cnt = hdev->sco_pkts;
BT_DBG("%s mtu: acl %d, sco %d max_pkt: acl %d, sco %d", hdev->name,
hdev->acl_mtu, hdev->sco_mtu, hdev->acl_pkts, hdev->sco_pkts);
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