Bluedroid use a set of timer function pairs such as btu_start_timer/btu_stop_timer, btu_sys_start_timer/btu_sys_stop_timer for use, in a lack of timer release functions. Thus the timers may be exhausted after some event sequence such as repetition of connection/reconnection with different devices. The maximum timer number used in bluedroid is given by ALARM_CBS_NUM which is 30 for now. This bugfix borrowed some update from bluedroid in Andoroid 7.0, which add timer release functions which promote the recycle of timer resources.
378 lines
14 KiB
C
378 lines
14 KiB
C
/******************************************************************************
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*
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* Copyright (C) 1999-2012 Broadcom Corporation
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at:
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*
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******************************************************************************/
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/*****************************************************************************
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*
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* This file contains definitions internal to the RFC unit
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*
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*****************************************************************************/
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#ifndef RFC_INT_H
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#define RFC_INT_H
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#include "l2c_api.h"
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#include "port_int.h"
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/*
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** Define RFCOMM result codes
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*/
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#define RFCOMM_SUCCESS 0
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#define RFCOMM_ERROR 1
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#define RFCOMM_LOW_RESOURCES 2
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#define RFCOMM_TRY_LATER 3
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#define RFCOMM_USER_ERR 111
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#define RFCOMM_SECURITY_ERR 112
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/*
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** Define max and min RFCOMM MTU (N1)
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*/
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#define RFCOMM_MIN_MTU 23
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#define RFCOMM_MAX_MTU 32767
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extern void RFCOMM_StartReq (tRFC_MCB *p_mcb);
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extern void RFCOMM_StartRsp (tRFC_MCB *p_mcb, UINT16 result);
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extern void RFCOMM_DlcEstablishReq (tRFC_MCB *p_mcb, UINT8 dlci, UINT16 mtu);
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extern void RFCOMM_DlcEstablishRsp (tRFC_MCB *p_mcb, UINT8 dlci, UINT16 mtu, UINT16 result);
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extern void RFCOMM_DataReq (tRFC_MCB *p_mcb, UINT8 dlci, BT_HDR *p_buf);
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extern void RFCOMM_DlcReleaseReq (tRFC_MCB *p_mcb, UINT8 dlci);
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extern void RFCOMM_ParNegReq (tRFC_MCB *p_mcb, UINT8 dlci, UINT16 mtu);
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extern void RFCOMM_ParNegRsp (tRFC_MCB *p_mcb, UINT8 dlci, UINT16 mtu, UINT8 cl, UINT8 k);
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extern void RFCOMM_TestReq (UINT8 *p_data, UINT16 len);
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#define RFCOMM_FLOW_STATE_DISABLE 0
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#define RFCOMM_FLOW_STATE_ENABLE 1
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extern void RFCOMM_FlowReq (tRFC_MCB *p_mcb, UINT8 dlci, UINT8 state);
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extern void RFCOMM_PortNegReq (tRFC_MCB *p_mcb, UINT8 dlci, tPORT_STATE *p_pars);
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extern void RFCOMM_PortNegRsp (tRFC_MCB *p_mcb, UINT8 dlci, tPORT_STATE *p_pars, UINT16 param_mask);
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extern void RFCOMM_ControlReq (tRFC_MCB *p_mcb, UINT8 dlci, tPORT_CTRL *p_pars);
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extern void RFCOMM_ControlRsp (tRFC_MCB *p_mcb, UINT8 dlci, tPORT_CTRL *p_pars);
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extern void RFCOMM_LineStatusReq (tRFC_MCB *p_mcb, UINT8 dlci, UINT8 line_status);
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/*
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** Define logical struct used for sending and decoding MX frames
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*/
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typedef struct {
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UINT8 dlci;
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UINT8 type;
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UINT8 cr;
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UINT8 ea;
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UINT8 pf;
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UINT8 credit;
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union {
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struct {
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UINT8 dlci;
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UINT8 frame_type;
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UINT8 conv_layer;
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UINT8 priority;
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UINT8 t1;
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UINT16 mtu;
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UINT8 n2;
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UINT8 k;
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} pn;
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struct {
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UINT8 *p_data;
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UINT16 data_len;
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} test;
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struct {
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UINT8 dlci;
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UINT8 signals;
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UINT8 break_present;
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UINT8 break_duration;
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} msc;
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struct {
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UINT8 ea;
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UINT8 cr;
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UINT8 type;
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} nsc;
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struct {
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UINT8 dlci;
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UINT8 is_request;
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UINT8 baud_rate;
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UINT8 byte_size;
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UINT8 stop_bits;
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UINT8 parity;
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UINT8 parity_type;
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UINT8 fc_type;
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UINT8 xon_char;
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UINT8 xoff_char;
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UINT16 param_mask;
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} rpn;
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struct {
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UINT8 dlci;
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UINT8 line_status;
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} rls;
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} u;
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} MX_FRAME;
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#define LINE_STATUS_NO_ERROR 0x00
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#define LINE_STATUS_OVERRUN 0x02 /* Receive Overrun Error */
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#define LINE_STATUS_RXPARITY 0x04 /* Receive Parity Error */
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#define LINE_STATUS_FRAME 0x08 /* Receive Framing error */
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#define LINE_STATUS_FAILED 0x10 /* Connection Failed */
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/*
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** Define states and events for the RFC multiplexer state machine
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*/
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#define RFC_MX_STATE_IDLE 0
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#define RFC_MX_STATE_WAIT_CONN_CNF 1
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#define RFC_MX_STATE_CONFIGURE 2
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#define RFC_MX_STATE_SABME_WAIT_UA 3
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#define RFC_MX_STATE_WAIT_SABME 4
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#define RFC_MX_STATE_CONNECTED 5
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#define RFC_MX_STATE_DISC_WAIT_UA 6
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/*
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** Define port states
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*/
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#define RFC_STATE_CLOSED 0
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#define RFC_STATE_SABME_WAIT_UA 1
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#define RFC_STATE_ORIG_WAIT_SEC_CHECK 2
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#define RFC_STATE_TERM_WAIT_SEC_CHECK 3
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#define RFC_STATE_OPENED 4
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#define RFC_STATE_DISC_WAIT_UA 5
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/*
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** Events that can be received by multiplexer as well as port state machines
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*/
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#define RFC_EVENT_SABME 0
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#define RFC_EVENT_UA 1
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#define RFC_EVENT_DM 2
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#define RFC_EVENT_DISC 3
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#define RFC_EVENT_UIH 4
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#define RFC_EVENT_TIMEOUT 5
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#define RFC_EVENT_BAD_FRAME 50
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/*
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** Multiplexer events
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*/
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#define RFC_MX_EVENT_START_REQ 6
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#define RFC_MX_EVENT_START_RSP 7
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#define RFC_MX_EVENT_CLOSE_REQ 8
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#define RFC_MX_EVENT_CONN_CNF 9
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#define RFC_MX_EVENT_CONN_IND 10
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#define RFC_MX_EVENT_CONF_CNF 11
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#define RFC_MX_EVENT_CONF_IND 12
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#define RFC_MX_EVENT_QOS_VIOLATION_IND 13
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#define RFC_MX_EVENT_DISC_IND 14
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#define RFC_MX_EVENT_TEST_CMD 15
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#define RFC_MX_EVENT_TEST_RSP 16
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#define RFC_MX_EVENT_FCON_CMD 17
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#define RFC_MX_EVENT_FCOFF_CMD 18
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#define RFC_MX_EVENT_NSC 19
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#define RFC_MX_EVENT_NSC_RSP 20
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/*
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** Port events
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*/
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#define RFC_EVENT_OPEN 9
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#define RFC_EVENT_ESTABLISH_RSP 11
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#define RFC_EVENT_CLOSE 12
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#define RFC_EVENT_CLEAR 13
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#define RFC_EVENT_DATA 14
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#define RFC_EVENT_SEC_COMPLETE 15
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// btla-specific ++
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#define RFC_T1_TIMEOUT 20 /* seconds to wait for reply with Poll bit */
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#define RFC_PORT_T1_TIMEOUT 60 /* seconds to wait for reply with Poll bit other than MX */
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#define RFC_T2_TIMEOUT 20 /* timeout to wait for Mx UIH */
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// btla-specific --
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#define RFC_DISC_TIMEOUT 3 /* If something goes wrong and we send DISC we should not wait for min */
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#define RFC_CLOSE_TIMEOUT 10
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#define RFCOMM_CONN_TIMEOUT 120 /* first connection to be established on Mx */
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/* Define RFComm control block
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*/
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typedef struct {
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MX_FRAME rx_frame;
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tL2CAP_APPL_INFO reg_info; /* L2CAP Registration info */
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tRFC_MCB *p_rfc_lcid_mcb[MAX_L2CAP_CHANNELS]; /* MCB based on the L2CAP's lcid */
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BOOLEAN peer_rx_disabled; /* If TRUE peer sent FCOFF */
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UINT8 last_mux; /* Last mux allocated */
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UINT8 last_port; /* Last port allocated */
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} tRFCOMM_CB;
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/* Main Control Block for the RFCOMM Layer (PORT and RFC) */
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typedef struct {
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tRFCOMM_CB rfc;
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tPORT_CB port;
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UINT8 trace_level;
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} tRFC_CB;
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#if RFC_DYNAMIC_MEMORY == FALSE
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extern tRFC_CB rfc_cb;
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#else
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extern tRFC_CB *rfc_cb_ptr;
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#define rfc_cb (*rfc_cb_ptr)
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#endif
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/* Timer running on the multiplexor channel while no DLCI connection is opened */
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#define RFC_MCB_INIT_INACT_TIMER 60 /* in seconds */
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/* Timer running on the multiplexor channel after last DLCI is released */
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#define RFC_MCB_RELEASE_INACT_TIMER 2 /* in seconds */
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/*
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** Define RFCOMM frame processing errors
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*/
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#define RFCOMM_ERR_BAD_SABME 1
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#define RFCOMM_ERR_BAD_UA 2
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#define RFCOMM_ERR_BAD_DM 3
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#define RFCOMM_ERR_BAD_DISC 4
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#define RFCOMM_ERR_BAD_UIH 5
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#ifdef RFCOMM_PRECALC_FCS
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#define RFCOMM_SABME_FCS(p_data, cr, dlci) rfc_sabme_fcs[cr][dlci]
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#define RFCOMM_UA_FCS(p_data, cr, dlci) rfc_ua_fcs[cr][dlci]
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#define RFCOMM_DM_FCS(p_data, cr, dlci) rfc_dm_fcs[cr][dlci]
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#define RFCOMM_DISC_FCS(p_data, cr, dlci) rfc_disc_fcs[cr][dlci]
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#define RFCOMM_UIH_FCS(p_data, dlci) rfc_uih_fcs[dlci]
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#else
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extern UINT8 rfc_calc_fcs (UINT16 len, UINT8 *p);
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#define RFCOMM_SABME_FCS(p_data, cr, dlci) rfc_calc_fcs(3, p_data)
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#define RFCOMM_UA_FCS(p_data, cr, dlci) rfc_calc_fcs(3, p_data)
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#define RFCOMM_DM_FCS(p_data, cr, dlci) rfc_calc_fcs(3, p_data)
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#define RFCOMM_DISC_FCS(p_data, cr, dlci) rfc_calc_fcs(3, p_data)
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#define RFCOMM_UIH_FCS(p_data, dlci) rfc_calc_fcs(2, p_data)
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#endif
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#ifdef __cplusplus
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extern "C" {
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#endif
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extern void rfc_mx_sm_execute (tRFC_MCB *p_mcb, UINT16 event, void *p_data);
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/*
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** Functions provided by the rfc_port_fsm.c
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*/
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extern void rfc_port_sm_execute (tPORT *p_port, UINT16 event, void *p_data);
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extern void rfc_process_pn (tRFC_MCB *p_rfc_mcb, BOOLEAN is_command, MX_FRAME *p_frame);
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extern void rfc_process_msc (tRFC_MCB *p_rfc_mcb, BOOLEAN is_command, MX_FRAME *p_frame);
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extern void rfc_process_rpn (tRFC_MCB *p_rfc_mcb, BOOLEAN is_command, BOOLEAN is_request, MX_FRAME *p_frame);
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extern void rfc_process_rls (tRFC_MCB *p_rfc_mcb, BOOLEAN is_command, MX_FRAME *p_frame);
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extern void rfc_process_nsc (tRFC_MCB *p_rfc_mcb, MX_FRAME *p_frame);
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extern void rfc_process_test_rsp (tRFC_MCB *p_rfc_mcb, BT_HDR *p_buf);
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extern void rfc_process_fcon (tRFC_MCB *p_rfc_mcb, BOOLEAN is_command);
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extern void rfc_process_fcoff (tRFC_MCB *p_rfc_mcb, BOOLEAN is_command);
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extern void rfc_process_l2cap_congestion (tRFC_MCB *p_mcb, BOOLEAN is_congested);
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/*
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** Functions provided by the rfc_utils.c
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*/
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tRFC_MCB *rfc_alloc_multiplexer_channel (BD_ADDR bd_addr, BOOLEAN is_initiator);
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extern void rfc_release_multiplexer_channel (tRFC_MCB *p_rfc_mcb);
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extern void rfc_timer_start (tRFC_MCB *p_rfc_mcb, UINT16 timeout);
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extern void rfc_timer_stop (tRFC_MCB *p_rfc_mcb);
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extern void rfc_timer_free (tRFC_MCB *p_rfc_mcb);
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extern void rfc_port_timer_start (tPORT *p_port, UINT16 tout);
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extern void rfc_port_timer_stop (tPORT *p_port);
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extern void rfc_port_timer_free (tPORT *p_port);
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BOOLEAN rfc_check_uih_fcs (UINT8 dlci, UINT8 received_fcs);
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BOOLEAN rfc_check_fcs (UINT16 len, UINT8 *p, UINT8 received_fcs);
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tRFC_MCB *rfc_find_lcid_mcb (UINT16 lcid);
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extern void rfc_save_lcid_mcb (tRFC_MCB *p_rfc_mcb, UINT16 lcid);
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extern void rfc_check_mcb_active (tRFC_MCB *p_mcb);
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extern void rfc_port_closed (tPORT *p_port);
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extern void rfc_sec_check_complete (BD_ADDR bd_addr, tBT_TRANSPORT transport, void *p_ref_data, UINT8 res);
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extern void rfc_inc_credit (tPORT *p_port, UINT8 credit);
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extern void rfc_dec_credit (tPORT *p_port);
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extern void rfc_check_send_cmd(tRFC_MCB *p_mcb, BT_HDR *p_buf);
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/*
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** Functions provided by the rfc_ts_frames.c
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*/
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extern void rfc_send_sabme (tRFC_MCB *p_rfc_mcb, UINT8 dlci);
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extern void rfc_send_ua (tRFC_MCB *p_rfc_mcb, UINT8 dlci);
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extern void rfc_send_dm (tRFC_MCB *p_rfc_mcb, UINT8 dlci, BOOLEAN pf);
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extern void rfc_send_disc (tRFC_MCB *p_rfc_mcb, UINT8 dlci);
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extern void rfc_send_pn (tRFC_MCB *p_mcb, UINT8 dlci, BOOLEAN is_command, UINT16 mtu,
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UINT8 cl, UINT8 k);
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extern void rfc_send_test (tRFC_MCB *p_rfc_mcb, BOOLEAN is_command, BT_HDR *p_buf);
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extern void rfc_send_msc (tRFC_MCB *p_mcb, UINT8 dlci, BOOLEAN is_command,
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tPORT_CTRL *p_pars);
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extern void rfc_send_rls (tRFC_MCB *p_mcb, UINT8 dlci, BOOLEAN is_command, UINT8 status);
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extern void rfc_send_rpn (tRFC_MCB *p_mcb, UINT8 dlci, BOOLEAN is_command,
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tPORT_STATE *p_pars, UINT16 mask);
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extern void rfc_send_fcon (tRFC_MCB *p_mcb, BOOLEAN is_command);
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extern void rfc_send_fcoff (tRFC_MCB *p_mcb, BOOLEAN is_command);
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extern void rfc_send_buf_uih (tRFC_MCB *p_rfc_mcb, UINT8 dlci, BT_HDR *p_buf);
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extern void rfc_send_credit(tRFC_MCB *p_mcb, UINT8 dlci, UINT8 credit);
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extern void rfc_process_mx_message (tRFC_MCB *p_rfc_mcb, BT_HDR *p_buf);
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extern UINT8 rfc_parse_data (tRFC_MCB *p_rfc_mcb, MX_FRAME *p_frame, BT_HDR *p_buf);
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/*
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** Functions provided by the rfc_disp.c
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*/
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/* Call back functions from RFCOMM */
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extern void rfcomm_l2cap_if_init (void);
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extern void PORT_StartInd (tRFC_MCB *p_mcb);
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extern void PORT_StartCnf (tRFC_MCB *p_mcb, UINT16 result);
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extern void PORT_CloseInd (tRFC_MCB *p_mcb);
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extern void Port_TimeOutCloseMux (tRFC_MCB *p_mcb);
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extern void PORT_DlcEstablishInd (tRFC_MCB *p_mcb, UINT8 dlci, UINT16 mtu);
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extern void PORT_DlcEstablishCnf (tRFC_MCB *p_mcb, UINT8 dlci, UINT16 mtu, UINT16 result);
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extern void PORT_DataInd (tRFC_MCB *p_mcb, UINT8 dlci, BT_HDR *p_buf);
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extern void PORT_DlcReleaseInd (tRFC_MCB *p_mcb, UINT8 dlci);
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extern void PORT_ParNegInd (tRFC_MCB *p_mcb, UINT8 dlci, UINT16 mtu, UINT8 cl, UINT8 k);
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extern void PORT_ParNegCnf (tRFC_MCB *p_mcb, UINT8 dlci, UINT16 mtu, UINT8 cl, UINT8 k);
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extern void PORT_TestCnf (tRFC_MCB *p_mcb, UINT8 *p_data, UINT16 len);
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extern void PORT_FlowInd (tRFC_MCB *p_mcb, UINT8 dlci, BOOLEAN fc);
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extern void PORT_PortNegInd (tRFC_MCB *p_mcb, UINT8 dlci, tPORT_STATE *p_pars, UINT16 param_mask);
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extern void PORT_PortNegCnf (tRFC_MCB *p_mcb, UINT8 dlci, tPORT_STATE *p_pars, UINT16 result);
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extern void PORT_ControlInd (tRFC_MCB *p_mcb, UINT8 dlci, tPORT_CTRL *p_pars);
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extern void PORT_ControlCnf (tRFC_MCB *p_mcb, UINT8 dlci, tPORT_CTRL *p_pars);
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extern void PORT_LineStatusInd (tRFC_MCB *p_mcb, UINT8 dlci, UINT8 line_status);
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#ifdef __cplusplus
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}
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#endif
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#endif
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