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| author | Johan Hedberg <johan.hedberg@intel.com> | 2013-05-17 12:49:23 +0300 |
|---|---|---|
| committer | Marcel Holtmann <marcel@holtmann.org> | 2013-12-05 07:05:34 -0800 |
| commit | 3831971355d901ccfb76533a422b4395072849a3 (patch) | |
| tree | 378ff35f8a2faf3280da767c40a638f94f590fa0 /net/bluetooth/l2cap_core.c | |
| parent | b5ecba642290a0f28a2dca15e4fdf2a9779bc116 (diff) | |
| download | linux-3831971355d901ccfb76533a422b4395072849a3.tar.gz linux-3831971355d901ccfb76533a422b4395072849a3.tar.bz2 linux-3831971355d901ccfb76533a422b4395072849a3.zip | |
Bluetooth: Add LE L2CAP flow control mode
The LE connection oriented channels have their own mode with its own
data transfer rules. In order to implement this properly we need to
distinguish L2CAP channels operating in this mode from other modes.
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Diffstat (limited to 'net/bluetooth/l2cap_core.c')
| -rw-r--r-- | net/bluetooth/l2cap_core.c | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/net/bluetooth/l2cap_core.c b/net/bluetooth/l2cap_core.c index 907fc1745321..e260753184b6 100644 --- a/net/bluetooth/l2cap_core.c +++ b/net/bluetooth/l2cap_core.c @@ -490,6 +490,13 @@ void l2cap_chan_set_defaults(struct l2cap_chan *chan) set_bit(FLAG_FORCE_ACTIVE, &chan->flags); } +void l2cap_le_flowctl_init(struct l2cap_chan *chan) +{ + chan->imtu = L2CAP_DEFAULT_MTU; + chan->omtu = L2CAP_LE_MIN_MTU; + chan->mode = L2CAP_MODE_LE_FLOWCTL; +} + void __l2cap_chan_add(struct l2cap_conn *conn, struct l2cap_chan *chan) { BT_DBG("conn %p, psm 0x%2.2x, dcid 0x%4.4x", conn, @@ -597,6 +604,9 @@ void l2cap_chan_del(struct l2cap_chan *chan, int err) case L2CAP_MODE_BASIC: break; + case L2CAP_MODE_LE_FLOWCTL: + break; + case L2CAP_MODE_ERTM: __clear_retrans_timer(chan); __clear_monitor_timer(chan); @@ -1849,6 +1859,7 @@ int l2cap_chan_connect(struct l2cap_chan *chan, __le16 psm, u16 cid, switch (chan->mode) { case L2CAP_MODE_BASIC: + case L2CAP_MODE_LE_FLOWCTL: break; case L2CAP_MODE_ERTM: case L2CAP_MODE_STREAMING: @@ -2530,6 +2541,7 @@ int l2cap_chan_send(struct l2cap_chan *chan, struct msghdr *msg, size_t len, switch (chan->mode) { case L2CAP_MODE_BASIC: + case L2CAP_MODE_LE_FLOWCTL: /* Check outgoing MTU */ if (len > chan->omtu) return -EMSGSIZE; @@ -6621,6 +6633,7 @@ static void l2cap_data_channel(struct l2cap_conn *conn, u16 cid, goto drop; switch (chan->mode) { + case L2CAP_MODE_LE_FLOWCTL: case L2CAP_MODE_BASIC: /* If socket recv buffers overflows we drop data here * which is *bad* because L2CAP has to be reliable. |