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Bluetooth: Use the transmit state machine for busy state changes

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This lets the transmit state machine handle local busy state changes,
since different actions are taken in the different transmit states.

Signed-off-by: Mat Martineau <mathewm@codeaurora.org>
Signed-off-by: Gustavo Padovan <gustavo.padovan@collabora.co.uk>
This commit is contained in:
Mat Martineau 2012-05-17 20:53:40 -07:00 committed by Johan Hedberg
parent 0a0aba42b8
commit 61aa4f5b9f
1 changed files with 7 additions and 40 deletions
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47
net/bluetooth/l2cap_core.c
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@ -4318,48 +4318,15 @@ static int l2cap_reassemble_sdu(struct l2cap_chan *chan, struct sk_buff *skb,
return err;
}
static void l2cap_ertm_enter_local_busy(struct l2cap_chan *chan)
{
BT_DBG("chan %p, Enter local busy", chan);
set_bit(CONN_LOCAL_BUSY, &chan->conn_state);
l2cap_seq_list_clear(&chan->srej_list);
__set_ack_timer(chan);
}
static void l2cap_ertm_exit_local_busy(struct l2cap_chan *chan)
{
u32 control;
if (!test_bit(CONN_RNR_SENT, &chan->conn_state))
goto done;
control = __set_reqseq(chan, chan->buffer_seq);
control |= __set_ctrl_poll(chan);
control |= __set_ctrl_super(chan, L2CAP_SUPER_RR);
chan->retry_count = 1;
__clear_retrans_timer(chan);
__set_monitor_timer(chan);
set_bit(CONN_WAIT_F, &chan->conn_state);
done:
clear_bit(CONN_LOCAL_BUSY, &chan->conn_state);
clear_bit(CONN_RNR_SENT, &chan->conn_state);
BT_DBG("chan %p, Exit local busy", chan);
}
void l2cap_chan_busy(struct l2cap_chan *chan, int busy)
{
if (chan->mode == L2CAP_MODE_ERTM) {
if (busy)
l2cap_ertm_enter_local_busy(chan);
else
l2cap_ertm_exit_local_busy(chan);
}
u8 event;
if (chan->mode != L2CAP_MODE_ERTM)
return;
event = busy ? L2CAP_EV_LOCAL_BUSY_DETECTED : L2CAP_EV_LOCAL_BUSY_CLEAR;
l2cap_tx(chan, 0, 0, event);
}
static u8 l2cap_classify_txseq(struct l2cap_chan *chan, u16 txseq)