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