diff options
| author | Andrei Emeltchenko | 2011-10-17 11:19:57 +0200 |
|---|---|---|
| committer | Gustavo F. Padovan | 2011-10-17 22:04:00 +0200 |
| commit | 836be934218eb80abc5515d584c329c26951086f (patch) | |
| tree | b8ee564f2ae0dc2f34fd9b0b7c2f9fb08fa917f1 /include/net/bluetooth/l2cap.h | |
| parent | Bluetooth: EWS: handling different Control fields (diff) | |
| download | kernel-qcow2-linux-836be934218eb80abc5515d584c329c26951086f.tar.gz kernel-qcow2-linux-836be934218eb80abc5515d584c329c26951086f.tar.xz kernel-qcow2-linux-836be934218eb80abc5515d584c329c26951086f.zip | |
Bluetooth: EWS: support extended seq numbers
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>
Diffstat (limited to 'include/net/bluetooth/l2cap.h')
| -rw-r--r-- | include/net/bluetooth/l2cap.h | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/include/net/bluetooth/l2cap.h b/include/net/bluetooth/l2cap.h index 41f0906649ee..fddc82afeafc 100644 --- a/include/net/bluetooth/l2cap.h +++ b/include/net/bluetooth/l2cap.h @@ -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; |