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authorMarcel Holtmann <marcel@holtmann.org>2007-10-20 16:55:10 +0400
committerDavid S. Miller <davem@sunset.davemloft.net>2007-10-22 13:59:47 +0400
commitb6a0dc822497e1c0b9e8c4add270cc27fce48454 (patch)
treeecfd0a08f62e4c6c7d1e63e62c04b6c17ca09cb6 /net/bluetooth/hci_core.c
parentdae6a0f6636d05bcb28ece1f3630b23ed2d66e18 (diff)
downloadlinux-b6a0dc822497e1c0b9e8c4add270cc27fce48454.tar.xz
[Bluetooth] Add support for handling simple eSCO links
With the Bluetooth 1.2 specification the Extended SCO feature for better audio connections was introduced. So far the Bluetooth core wasn't able to handle any eSCO connections correctly. This patch adds simple eSCO support while keeping backward compatibility with older devices. Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Diffstat (limited to 'net/bluetooth/hci_core.c')
-rw-r--r--net/bluetooth/hci_core.c22
1 files changed, 22 insertions, 0 deletions
diff --git a/net/bluetooth/hci_core.c b/net/bluetooth/hci_core.c
index 2894382dd26d..372b0d3b75a8 100644
--- a/net/bluetooth/hci_core.c
+++ b/net/bluetooth/hci_core.c
@@ -1361,6 +1361,26 @@ static inline void hci_sched_sco(struct hci_dev *hdev)
}
}
+static inline void hci_sched_esco(struct hci_dev *hdev)
+{
+ struct hci_conn *conn;
+ struct sk_buff *skb;
+ int quote;
+
+ BT_DBG("%s", hdev->name);
+
+ while (hdev->sco_cnt && (conn = hci_low_sent(hdev, ESCO_LINK, &quote))) {
+ while (quote-- && (skb = skb_dequeue(&conn->data_q))) {
+ BT_DBG("skb %p len %d", skb, skb->len);
+ hci_send_frame(skb);
+
+ conn->sent++;
+ if (conn->sent == ~0)
+ conn->sent = 0;
+ }
+ }
+}
+
static void hci_tx_task(unsigned long arg)
{
struct hci_dev *hdev = (struct hci_dev *) arg;
@@ -1376,6 +1396,8 @@ static void hci_tx_task(unsigned long arg)
hci_sched_sco(hdev);
+ hci_sched_esco(hdev);
+
/* Send next queued raw (unknown type) packet */
while ((skb = skb_dequeue(&hdev->raw_q)))
hci_send_frame(skb);