| /****************************************************************************** |
| * |
| * Copyright (C) 2003-2012 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 interfaces which are internal to AVCTP. |
| * |
| ******************************************************************************/ |
| #ifndef AVCT_INT_H |
| #define AVCT_INT_H |
| |
| #include "gki.h" |
| #include "avct_api.h" |
| #include "avct_defs.h" |
| #include "l2c_api.h" |
| |
| /***************************************************************************** |
| ** constants |
| *****************************************************************************/ |
| |
| /* lcb state machine events */ |
| enum { |
| AVCT_LCB_UL_BIND_EVT, |
| AVCT_LCB_UL_UNBIND_EVT, |
| AVCT_LCB_UL_MSG_EVT, |
| AVCT_LCB_INT_CLOSE_EVT, |
| AVCT_LCB_LL_OPEN_EVT, |
| AVCT_LCB_LL_CLOSE_EVT, |
| AVCT_LCB_LL_MSG_EVT, |
| AVCT_LCB_LL_CONG_EVT |
| }; |
| |
| |
| /* "states" used for L2CAP channel */ |
| #define AVCT_CH_IDLE 0 /* No connection */ |
| #define AVCT_CH_CONN 1 /* Waiting for connection confirm */ |
| #define AVCT_CH_CFG 2 /* Waiting for configuration complete */ |
| #define AVCT_CH_OPEN 3 /* Channel opened */ |
| |
| /* "no event" indicator used by ccb dealloc */ |
| #define AVCT_NO_EVT 0xFF |
| |
| /***************************************************************************** |
| ** data types |
| *****************************************************************************/ |
| /* sub control block type - common data members for tAVCT_LCB and tAVCT_BCB */ |
| typedef struct { |
| UINT16 peer_mtu; /* peer l2c mtu */ |
| UINT16 ch_result; /* L2CAP connection result value */ |
| UINT16 ch_lcid; /* L2CAP channel LCID */ |
| UINT8 allocated; /* 0, not allocated. index+1, otherwise. */ |
| UINT8 state; /* The state machine state */ |
| UINT8 ch_state; /* L2CAP channel state */ |
| UINT8 ch_flags; /* L2CAP configuration flags */ |
| } tAVCT_SCB; |
| |
| /* link control block type */ |
| typedef struct { |
| UINT16 peer_mtu; /* peer l2c mtu */ |
| UINT16 ch_result; /* L2CAP connection result value */ |
| UINT16 ch_lcid; /* L2CAP channel LCID */ |
| UINT8 allocated; /* 0, not allocated. index+1, otherwise. */ |
| UINT8 state; /* The state machine state */ |
| UINT8 ch_state; /* L2CAP channel state */ |
| UINT8 ch_flags; /* L2CAP configuration flags */ |
| BT_HDR *p_rx_msg; /* Message being reassembled */ |
| UINT16 conflict_lcid; /* L2CAP channel LCID */ |
| BD_ADDR peer_addr; /* BD address of peer */ |
| BUFFER_Q tx_q; /* Transmit data buffer queue */ |
| BOOLEAN cong; /* TRUE, if congested */ |
| } tAVCT_LCB; |
| |
| /* browse control block type */ |
| typedef struct { |
| UINT16 peer_mtu; /* peer l2c mtu */ |
| UINT16 ch_result; /* L2CAP connection result value */ |
| UINT16 ch_lcid; /* L2CAP channel LCID */ |
| UINT8 allocated; /* 0, not allocated. index+1, otherwise. */ |
| UINT8 state; /* The state machine state */ |
| UINT8 ch_state; /* L2CAP channel state */ |
| UINT8 ch_flags; /* L2CAP configuration flags */ |
| BT_HDR *p_tx_msg; /* Message to be sent - in case the browsing channel is not open when MsgReg is called */ |
| UINT8 ch_close; /* CCB index+1, if CCB initiated channel close */ |
| } tAVCT_BCB; |
| |
| #define AVCT_ALOC_LCB 0x01 |
| #define AVCT_ALOC_BCB 0x02 |
| /* connection control block */ |
| typedef struct { |
| tAVCT_CC cc; /* parameters from connection creation */ |
| tAVCT_LCB *p_lcb; /* Associated LCB */ |
| tAVCT_BCB *p_bcb; /* associated BCB */ |
| BOOLEAN ch_close; /* Whether CCB initiated channel close */ |
| UINT8 allocated; /* Whether LCB/BCB is allocated */ |
| } tAVCT_CCB; |
| |
| /* data type associated with UL_MSG_EVT */ |
| typedef struct { |
| BT_HDR *p_buf; |
| tAVCT_CCB *p_ccb; |
| UINT8 label; |
| UINT8 cr; |
| } tAVCT_UL_MSG; |
| |
| /* union associated with lcb state machine events */ |
| typedef union { |
| tAVCT_UL_MSG ul_msg; |
| BT_HDR *p_buf; |
| tAVCT_CCB *p_ccb; |
| UINT16 result; |
| BOOLEAN cong; |
| UINT8 err_code; |
| } tAVCT_LCB_EVT; |
| |
| /* Control block for AVCT */ |
| typedef struct { |
| tAVCT_LCB lcb[AVCT_NUM_LINKS]; /* link control blocks */ |
| tAVCT_BCB bcb[AVCT_NUM_LINKS]; /* browse control blocks */ |
| tAVCT_CCB ccb[AVCT_NUM_CONN]; /* connection control blocks */ |
| UINT16 mtu; /* our L2CAP MTU */ |
| UINT16 mtu_br; /* our L2CAP MTU for the Browsing channel */ |
| UINT8 trace_level; /* trace level */ |
| } tAVCT_CB; |
| |
| /***************************************************************************** |
| ** function declarations |
| *****************************************************************************/ |
| |
| /* LCB function declarations */ |
| extern void avct_lcb_event(tAVCT_LCB *p_lcb, UINT8 event, tAVCT_LCB_EVT *p_data); |
| #if (AVCT_BROWSE_INCLUDED == TRUE) |
| extern void avct_bcb_event(tAVCT_BCB *p_bcb, UINT8 event, tAVCT_LCB_EVT *p_data); |
| extern void avct_close_bcb(tAVCT_LCB *p_lcb, tAVCT_LCB_EVT *p_data); |
| extern tAVCT_LCB *avct_lcb_by_bcb(tAVCT_BCB *p_bcb); |
| extern tAVCT_BCB *avct_bcb_by_lcb(tAVCT_LCB *p_lcb); |
| extern BOOLEAN avct_bcb_last_ccb(tAVCT_BCB *p_bcb, tAVCT_CCB *p_ccb_last); |
| extern tAVCT_BCB *avct_bcb_by_lcid(UINT16 lcid); |
| #endif |
| extern tAVCT_LCB *avct_lcb_by_bd(BD_ADDR bd_addr); |
| extern tAVCT_LCB *avct_lcb_alloc(BD_ADDR bd_addr); |
| extern void avct_lcb_dealloc(tAVCT_LCB *p_lcb, tAVCT_LCB_EVT *p_data); |
| extern tAVCT_LCB *avct_lcb_by_lcid(UINT16 lcid); |
| extern tAVCT_CCB *avct_lcb_has_pid(tAVCT_LCB *p_lcb, UINT16 pid); |
| extern BOOLEAN avct_lcb_last_ccb(tAVCT_LCB *p_lcb, tAVCT_CCB *p_ccb_last); |
| |
| /* LCB action functions */ |
| extern void avct_lcb_chnl_open(tAVCT_LCB *p_lcb, tAVCT_LCB_EVT *p_data); |
| extern void avct_lcb_unbind_disc(tAVCT_LCB *p_lcb, tAVCT_LCB_EVT *p_data); |
| extern void avct_lcb_open_ind(tAVCT_LCB *p_lcb, tAVCT_LCB_EVT *p_data); |
| extern void avct_lcb_open_fail(tAVCT_LCB *p_lcb, tAVCT_LCB_EVT *p_data); |
| extern void avct_lcb_close_ind(tAVCT_LCB *p_lcb, tAVCT_LCB_EVT *p_data); |
| extern void avct_lcb_close_cfm(tAVCT_LCB *p_lcb, tAVCT_LCB_EVT *p_data); |
| extern void avct_lcb_bind_conn(tAVCT_LCB *p_lcb, tAVCT_LCB_EVT *p_data); |
| extern void avct_lcb_chk_disc(tAVCT_LCB *p_lcb, tAVCT_LCB_EVT *p_data); |
| extern void avct_lcb_chnl_disc(tAVCT_LCB *p_lcb, tAVCT_LCB_EVT *p_data); |
| extern void avct_lcb_bind_fail(tAVCT_LCB *p_lcb, tAVCT_LCB_EVT *p_data); |
| extern void avct_lcb_cong_ind(tAVCT_LCB *p_lcb, tAVCT_LCB_EVT *p_data); |
| extern void avct_lcb_discard_msg(tAVCT_LCB *p_lcb, tAVCT_LCB_EVT *p_data); |
| extern void avct_lcb_send_msg(tAVCT_LCB *p_lcb, tAVCT_LCB_EVT *p_data); |
| extern void avct_lcb_msg_ind(tAVCT_LCB *p_lcb, tAVCT_LCB_EVT *p_data); |
| extern void avct_lcb_free_msg_ind(tAVCT_LCB *p_lcb, tAVCT_LCB_EVT *p_data); |
| |
| /* BCB action functions */ |
| #if (AVCT_BROWSE_INCLUDED == TRUE) |
| typedef void (*tAVCT_BCB_ACTION)(tAVCT_BCB *p_bcb, tAVCT_LCB_EVT *p_data); |
| extern void avct_bcb_chnl_open(tAVCT_BCB *p_bcb, tAVCT_LCB_EVT *p_data); |
| extern void avct_bcb_unbind_disc(tAVCT_BCB *p_bcb, tAVCT_LCB_EVT *p_data); |
| extern void avct_bcb_open_ind(tAVCT_BCB *p_bcb, tAVCT_LCB_EVT *p_data); |
| extern void avct_bcb_open_fail(tAVCT_BCB *p_bcb, tAVCT_LCB_EVT *p_data); |
| extern void avct_bcb_close_ind(tAVCT_BCB *p_bcb, tAVCT_LCB_EVT *p_data); |
| extern void avct_bcb_close_cfm(tAVCT_BCB *p_bcb, tAVCT_LCB_EVT *p_data); |
| extern void avct_bcb_bind_conn(tAVCT_BCB *p_bcb, tAVCT_LCB_EVT *p_data); |
| extern void avct_bcb_chk_disc(tAVCT_BCB *p_bcb, tAVCT_LCB_EVT *p_data); |
| extern void avct_bcb_chnl_disc(tAVCT_BCB *p_bcb, tAVCT_LCB_EVT *p_data); |
| extern void avct_bcb_bind_fail(tAVCT_BCB *p_bcb, tAVCT_LCB_EVT *p_data); |
| extern void avct_bcb_cong_ind(tAVCT_BCB *p_bcb, tAVCT_LCB_EVT *p_data); |
| extern void avct_bcb_discard_msg(tAVCT_BCB *p_bcb, tAVCT_LCB_EVT *p_data); |
| extern void avct_bcb_send_msg(tAVCT_BCB *p_bcb, tAVCT_LCB_EVT *p_data); |
| extern void avct_bcb_msg_ind(tAVCT_BCB *p_bcb, tAVCT_LCB_EVT *p_data); |
| extern void avct_bcb_free_msg_ind(tAVCT_BCB *p_bcb, tAVCT_LCB_EVT *p_data); |
| |
| extern void avct_bcb_dealloc(tAVCT_BCB *p_bcb, tAVCT_LCB_EVT *p_data); |
| |
| extern const tAVCT_BCB_ACTION avct_bcb_action[]; |
| extern const UINT8 avct_lcb_pkt_type_len[]; |
| extern const tL2CAP_FCR_OPTS avct_l2c_br_fcr_opts_def; |
| #endif |
| |
| /* CCB function declarations */ |
| extern tAVCT_CCB *avct_ccb_alloc(tAVCT_CC *p_cc); |
| extern void avct_ccb_dealloc(tAVCT_CCB *p_ccb, UINT8 event, UINT16 result, BD_ADDR bd_addr); |
| extern UINT8 avct_ccb_to_idx(tAVCT_CCB *p_ccb); |
| extern tAVCT_CCB *avct_ccb_by_idx(UINT8 idx); |
| |
| |
| /***************************************************************************** |
| ** global data |
| *****************************************************************************/ |
| #ifdef __cplusplus |
| extern "C" |
| { |
| #endif |
| |
| /* Main control block */ |
| #if AVCT_DYNAMIC_MEMORY == FALSE |
| AVCT_API extern tAVCT_CB avct_cb; |
| #else |
| AVCT_API extern tAVCT_CB *avct_cb_ptr; |
| #define avct_cb (*avct_cb_ptr) |
| #endif |
| |
| /* L2CAP callback registration structure */ |
| extern const tL2CAP_APPL_INFO avct_l2c_appl; |
| #if (AVCT_BROWSE_INCLUDED == TRUE) |
| extern const tL2CAP_APPL_INFO avct_l2c_br_appl; |
| #endif |
| |
| #ifdef __cplusplus |
| } |
| #endif |
| |
| #endif /* AVCT_INT_H */ |
| |
| |
