[Bluetooth] Correct SCO buffer size on request

This patch introduces a quirk that allows the drivers to tell the host
to correct the SCO buffer size values.

Signed-off-by: Olivier Galibert <galibert@pobox.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>

1 files changed, 11 insertions, 3 deletions

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);