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Bluetooth: EWS: support extended seq numbers

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Adds support for extended sequence numbers found in
extended control fields.

Signed-off-by: Andrei Emeltchenko <andrei.emeltchenko@intel.com>
Signed-off-by: Gustavo F. Padovan <padovan@profusion.mobi>
This commit is contained in:
Andrei Emeltchenko
2011-10-17 12:19:57 +03:00
committed by Gustavo F. Padovan
parent 88843ab06b
commit 836be93421
3 changed files with 48 additions and 34 deletions
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17
include/net/bluetooth/l2cap.h
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@@ -381,6 +381,7 @@ struct l2cap_chan {
__u8 fcs;
__u16 tx_win;
__u16 tx_win_max;
__u8 max_tx;
__u16 retrans_timeout;
__u16 monitor_timeout;
@@ -543,6 +544,22 @@ enum {
L2CAP_DEFAULT_ACK_TO);
#define __clear_ack_timer(c) l2cap_clear_timer(c, &c->ack_timer)
static inline int __seq_offset(struct l2cap_chan *chan, __u16 seq1, __u16 seq2)
{
int offset;
offset = (seq1 - seq2) % (chan->tx_win_max + 1);
if (offset < 0)
offset += (chan->tx_win_max + 1);
return offset;
}
static inline __u16 __next_seq(struct l2cap_chan *chan, __u16 seq)
{
return (seq + 1) % (chan->tx_win_max + 1);
}
static inline int l2cap_tx_window_full(struct l2cap_chan *ch)
{
int sub;