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Bluetooth: EWS: handling different Control fields

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There are three different Control Field formats: the Standard Control
Field, the Enhanced Control Field, and the Extended Control Field.
Patch adds function to handle all those fields seamlessly.

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 12:19:56 +03:00
committed by Gustavo F. Padovan
parent e5b82e5892
commit 88843ab06b
2 changed files with 79 additions and 44 deletions
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28
include/net/bluetooth/l2cap.h
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@@ -27,6 +27,8 @@
#ifndef __L2CAP_H
#define __L2CAP_H
#include <asm/unaligned.h>
/* L2CAP defaults */
#define L2CAP_DEFAULT_MTU 672
#define L2CAP_DEFAULT_MIN_MTU 48
@@ -684,6 +686,32 @@ static inline bool __is_ctrl_poll(struct l2cap_chan *chan, __u32 ctrl)
else
return ctrl & L2CAP_CTRL_POLL;
}
static inline __u32 __get_control(struct l2cap_chan *chan, void *p)
{
if (test_bit(FLAG_EXT_CTRL, &chan->flags))
return get_unaligned_le32(p);
else
return get_unaligned_le16(p);
}
static inline void __put_control(struct l2cap_chan *chan, __u32 control,
void *p)
{
if (test_bit(FLAG_EXT_CTRL, &chan->flags))
return put_unaligned_le32(control, p);
else
return put_unaligned_le16(control, p);
}
static inline __u8 __ctrl_size(struct l2cap_chan *chan)
{
if (test_bit(FLAG_EXT_CTRL, &chan->flags))
return L2CAP_EXT_HDR_SIZE - L2CAP_HDR_SIZE;
else
return L2CAP_ENH_HDR_SIZE - L2CAP_HDR_SIZE;
}
extern int disable_ertm;
int l2cap_init_sockets(void);