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move flow control to btc layer

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defer free slot in btc layer when receive BTA_JV_RFCOMM_CLOSE_EVT
This commit is contained in:
liqigan
2020-08-20 13:19:22 +08:00
parent eff892933c
commit 14f48d35bd
12 changed files with 314 additions and 80 deletions
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71
components/bt/host/bluedroid/stack/rfcomm/port_api.c
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@@ -899,6 +899,77 @@ int PORT_FlowControl_MaxCredit (UINT16 handle, BOOLEAN enable)
}
#endif
/*******************************************************************************
**
** Function PORT_FlowControl_GiveCredit
**
** Description This function gives specified credits to the peer
**
** Parameters: handle - Handle returned in the RFCOMM_CreateConnection
** enable - enables data flow
** credits_given - credits to give
**
*******************************************************************************/
int PORT_FlowControl_GiveCredit (UINT16 handle, BOOLEAN enable, UINT16 credits_given)
{
tPORT *p_port;
BOOLEAN old_fc;
UINT32 events;
RFCOMM_TRACE_DEBUG("%s handle:%d enable: %d, cred %d", __func__, handle, enable, credits_given);
/* Check if handle is valid to avoid crashing */
if ((handle == 0) || (handle > MAX_RFC_PORTS)) {
return (PORT_BAD_HANDLE);
}
p_port = &rfc_cb.port.port[handle - 1];
if (!p_port->in_use || (p_port->state == PORT_STATE_CLOSED)) {
return (PORT_NOT_OPENED);
}
if (!p_port->rfc.p_mcb) {
return (PORT_NOT_OPENED);
}
p_port->rx.user_fc = !enable;
if (p_port->rfc.p_mcb->flow == PORT_FC_CREDIT) {
if (!p_port->rx.user_fc) {
port_flow_control_peer(p_port, TRUE, credits_given);
}
} else {
assert(0); // karl: temporarily not allowed
old_fc = p_port->local_ctrl.fc;
/* FC is set if user is set or peer is set */
p_port->local_ctrl.fc = (p_port->rx.user_fc | p_port->rx.peer_fc);
if (p_port->local_ctrl.fc != old_fc) {
port_start_control (p_port);
}
}
/* Need to take care of the case when we could not deliver events */
/* to the application because we were flow controlled */
if (enable && (p_port->rx.queue_size != 0)) {
assert(0); // karl: temporarily not allowed
events = PORT_EV_RXCHAR;
if (p_port->rx_flag_ev_pending) {
p_port->rx_flag_ev_pending = FALSE;
events |= PORT_EV_RXFLAG;
}
events &= p_port->ev_mask;
if (p_port->p_callback && events) {
p_port->p_callback (events, p_port->inx);
}
}
return (PORT_SUCCESS);
}
/*******************************************************************************
**
** Function PORT_GetModemStatus