/******************************************************************************* ** ** Function rfc_port_sm_state_closed ** ** Description This function handles events when the port is in ** CLOSED state. This state exists when port is ** being initially established. ** ** Returns void ** *******************************************************************************/ void rfc_port_sm_state_closed (tPORT *p_port, UINT16 event, void *p_data) { switch (event) { case RFC_EVENT_OPEN: p_port->rfc.state = RFC_STATE_ORIG_WAIT_SEC_CHECK; btm_sec_mx_access_request (p_port->rfc.p_mcb->bd_addr, BT_PSM_RFCOMM, TRUE, BTM_SEC_PROTO_RFCOMM, (UINT32)(p_port->dlci / 2), &rfc_sec_check_complete, p_port); return; case RFC_EVENT_CLOSE: break; case RFC_EVENT_CLEAR: return; case RFC_EVENT_DATA: GKI_freebuf (p_data); break; case RFC_EVENT_SABME: /* make sure the multiplexer disconnect timer is not running (reconnect case) */ rfc_timer_stop(p_port->rfc.p_mcb ); /* Open will be continued after security checks are passed */ p_port->rfc.state = RFC_STATE_TERM_WAIT_SEC_CHECK; btm_sec_mx_access_request (p_port->rfc.p_mcb->bd_addr, BT_PSM_RFCOMM, FALSE, BTM_SEC_PROTO_RFCOMM, (UINT32)(p_port->dlci / 2), &rfc_sec_check_complete, p_port); return; case RFC_EVENT_UA: return; case RFC_EVENT_DM: rfc_port_closed (p_port); return; case RFC_EVENT_UIH: GKI_freebuf (p_data); rfc_send_dm (p_port->rfc.p_mcb, p_port->dlci, FALSE); return; case RFC_EVENT_DISC: rfc_send_dm (p_port->rfc.p_mcb, p_port->dlci, FALSE); return; case RFC_EVENT_TIMEOUT: Port_TimeOutCloseMux( p_port->rfc.p_mcb ) ; RFCOMM_TRACE_ERROR ("Port error state %d event %d", p_port->rfc.state, event); return; } RFCOMM_TRACE_WARNING ("Port state closed Event ignored %d", event); return; }
/******************************************************************************* ** ** Function rfc_port_sm_opened ** ** Description This function handles events for the port in the OPENED ** state ** ** Returns void ** *******************************************************************************/ void rfc_port_sm_opened (tPORT *p_port, UINT16 event, void *p_data) { switch (event) { case RFC_EVENT_OPEN: RFCOMM_TRACE_ERROR ("Port error state %d event %d", p_port->rfc.state, event); return; case RFC_EVENT_CLOSE: rfc_port_timer_start (p_port, RFC_DISC_TIMEOUT); rfc_send_disc (p_port->rfc.p_mcb, p_port->dlci); p_port->rfc.expected_rsp = 0; p_port->rfc.state = RFC_STATE_DISC_WAIT_UA; return; case RFC_EVENT_CLEAR: rfc_port_closed (p_port); return; case RFC_EVENT_DATA: /* Send credits in the frame. Pass them in the layer specific member of the hdr. */ /* There might be an initial case when we reduced rx_max and credit_rx is still */ /* bigger. Make sure that we do not send 255 */ if ((p_port->rfc.p_mcb->flow == PORT_FC_CREDIT) && (((BT_HDR *)p_data)->len < p_port->peer_mtu) && (!p_port->rx.user_fc) && (p_port->credit_rx_max > p_port->credit_rx)) { ((BT_HDR *)p_data)->layer_specific = (UINT8) (p_port->credit_rx_max - p_port->credit_rx); p_port->credit_rx = p_port->credit_rx_max; } else { ((BT_HDR *)p_data)->layer_specific = 0; } rfc_send_buf_uih (p_port->rfc.p_mcb, p_port->dlci, (BT_HDR *)p_data); rfc_dec_credit (p_port); return; case RFC_EVENT_UA: return; case RFC_EVENT_SABME: rfc_send_ua (p_port->rfc.p_mcb, p_port->dlci); return; case RFC_EVENT_DM: PORT_DlcReleaseInd (p_port->rfc.p_mcb, p_port->dlci); rfc_port_closed (p_port); return; case RFC_EVENT_DISC: p_port->rfc.state = RFC_STATE_CLOSED; rfc_send_ua (p_port->rfc.p_mcb, p_port->dlci); if (! fixed_queue_is_empty(p_port->rx.queue)) { /* give a chance to upper stack to close port properly */ RFCOMM_TRACE_DEBUG("port queue is not empty"); rfc_port_timer_start (p_port, RFC_DISC_TIMEOUT); } else { PORT_DlcReleaseInd (p_port->rfc.p_mcb, p_port->dlci); } return; case RFC_EVENT_UIH: rfc_port_uplink_data (p_port, (BT_HDR *)p_data); return; case RFC_EVENT_TIMEOUT: Port_TimeOutCloseMux( p_port->rfc.p_mcb ) ; RFCOMM_TRACE_ERROR ("Port error state %d event %d", p_port->rfc.state, event); return; } RFCOMM_TRACE_WARNING ("Port state opened Event ignored %d", event); }