linux-stable.git/include/net/bluetooth/l2cap.h, branch linux-3.5.y

Bluetooth: Refactor L2CAP ERTM and streaming transmit segmentation

2012-05-09T04:40:53+00:00

Use more common code for ERTM and streaming mode segmentation and
transmission, and begin using skb control block data for delaying
extended or enhanced header generation until just before the packet is
transmitted.  This code is also better suited for resegmentation,
which is needed when L2CAP links are reconfigured after an AMP channel
move.

Signed-off-by: Mat Martineau 
Reviewed-by: Ulisses Furquim 
Signed-off-by: Gustavo Padovan

Bluetooth: Improve ERTM sequence number offset calculation

2012-05-09T04:40:46+00:00

Instead of using modular division, the offset can be calculated using
only addition and subtraction.  The previous calculation did not work
as intended and was more difficult to understand, involving unsigned
integer underflow and a check for a negative value where one was not
possible.

Signed-off-by: Mat Martineau 
Acked-by: Marcel Holtmann 
Signed-off-by: Gustavo Padovan

Bluetooth: Use address type info from user-space

2012-05-09T04:40:45+00:00

In order to establish a LE connection we need the address type
information. User-space already pass this information to kernel
through struct sockaddr_l2.

This patch adds the dst_type parameter to l2cap_chan_connect so we
are able to pass the address type info from user-space down to
hci_conn layer.

Signed-off-by: Andre Guedes 
Acked-by: Johan Hedberg 
Signed-off-by: Marcel Holtmann

Bluetooth: Add address type to struct sockaddr_l2

2012-05-09T04:40:43+00:00

This patch adds the address type info to struct sockaddr_l2 so
user-space can inform the remote device address type required
to establish LE connections.

Soon, instead of looking the advertising cache up to discover the
address type, we'll use this address type info to establish LE
connections.

Signed-off-by: Andre Guedes 
Acked-by: Johan Hedberg 
Signed-off-by: Marcel Holtmann

Bluetooth: trivial: Remove empty line

2012-05-09T04:40:42+00:00

Signed-off-by: Andrei Emeltchenko 
Signed-off-by: Marcel Holtmann

Bluetooth: Add the l2cap_seq_list structure for tracking frames

2012-05-09T04:40:30+00:00

A sequence list is a data structure used to track frames that need to
be retransmitted, and frames that have been requested for
retransmission by the remote device.  It can compactly represent a
list of sequence numbers within the ERTM transmit window.  Memory for
the list is allocated once at connection time, and common operations
in ERTM are O(1).

Signed-off-by: Mat Martineau 
Signed-off-by: Marcel Holtmann

Bluetooth: Remove err parameter from alloc_skb()

2012-05-09T04:40:26+00:00

Use ERR_PTR maginc instead.

Signed-off-by: Gustavo Padovan 
Acked-by: Marcel Holtmann 
Signed-off-by: Johan Hedberg

Bluetooth: Adds set_default function in L2CAP setup

2012-05-09T03:41:39+00:00

Some parameters in L2CAP chan are set to default similar way in
socket based channels and A2MP channels. Adds common function which
sets all defaults.

Signed-off-by: Andrei Emeltchenko 
Signed-off-by: Gustavo Padovan

Bluetooth: Remove sk parameter from l2cap_chan_create()

2012-05-09T03:41:36+00:00

Following the separation if core and sock code this change avoid
manipulation of sk inside l2cap_chan_create().

Signed-off-by: Gustavo Padovan

Bluetooth: Add definitions and struct members for new ERTM state machine

2012-05-09T03:41:35+00:00

Adds some missing values for control field parsing, additional data
for the new state machine, and enumerations for states, incoming
packet classification, and state machine events.

Signed-off-by: Mat Martineau 
Acked-by: Marcel Holtmann 
Signed-off-by: Gustavo Padovan