ESP-IDF
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Outline
#include "common/bt_target.h"
#include <string.h>
#include "bta/bta_av_api.h"
#include "bta_av_int.h"
#include "stack/avdt_api.h"
#include "bta/utl.h"
#include "stack/l2c_api.h"
#include "osi/allocator.h"
#include "osi/list.h"
#include "common/bt_trace.h"
#define BTA_AV_CA_IGNORE
#define BTA_AV_CA_ACTION_COL
#define BTA_AV_CA_NEXT_STATE
#define BTA_AV_CA_NUM_COLS
Files
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SourceVuESP-IDF Framework and ExamplesESP-IDFcomponents/bt/host/bluedroid/bta/av/bta_av_ca_sm.c
 
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/* * SPDX-FileCopyrightText: 2024 Espressif Systems (Shanghai) CO LTD * * SPDX-License-Identifier: Apache-2.0 *//* ... */ #include "common/bt_target.h" #if BTA_AV_CA_INCLUDED #include <string.h> #include "bta/bta_av_api.h" #include "bta_av_int.h" #include "stack/avdt_api.h" #include "bta/utl.h" #include "stack/l2c_api.h" #include "osi/allocator.h" #include "osi/list.h" #include "common/bt_trace.h"9 includes /* state machine states */ enum { BTA_AV_CA_INIT_ST, BTA_AV_CA_OPENING_ST, BTA_AV_CA_CONNECTING_ST, BTA_AV_CA_CONNECTED_ST, BTA_AV_CA_GETTING_ST, BTA_AV_CA_CLOSING_ST }{...}; /* state machine action enumeration list */ enum { BTA_AV_API_CA_OPEN, BTA_AV_API_CA_CLOSE, BTA_AV_API_CA_GET, BTA_AV_CA_RESPONSE, BTA_AV_CA_RESPONSE_FINAL, BTA_AV_CA_GOEP_CONNECT, BTA_AV_CA_GOEP_DISCONNECT, BTA_AV_CA_FORCE_DISCONNECT, BTA_AV_CA_NUM_ACTIONS }{...}; #define BTA_AV_CA_IGNORE BTA_AV_CA_NUM_ACTIONS /* type for action functions */ typedef void (*tBTA_AV_CA_ACTION)(tBTA_AV_RCB *p_rcb, tBTA_AV_DATA *p_data); /* action functions */ const tBTA_AV_CA_ACTION bta_av_ca_action[] = { bta_av_ca_api_open, bta_av_ca_api_close, bta_av_ca_api_get, bta_av_ca_response, bta_av_ca_response_final, bta_av_ca_goep_connect, bta_av_ca_goep_disconnect, bta_av_ca_force_disconnect, NULL }{...}; /* state table information */ #define BTA_AV_CA_ACTION_COL 0 /* position of actions */ #define BTA_AV_CA_NEXT_STATE 1 /* position of next state */ #define BTA_AV_CA_NUM_COLS 2 /* number of columns in state tables */ /* state table for init state */ static const UINT8 bta_av_ca_st_init[][BTA_AV_CA_NUM_COLS] = { /* Event Action 1 Next state */ /* API_CA_OPEN_EVT */ {BTA_AV_API_CA_OPEN, BTA_AV_CA_OPENING_ST }, /* API_CA_CLOSE_EVT */ {BTA_AV_CA_IGNORE, BTA_AV_CA_INIT_ST }, /* API_CA_GET_EVT */ {BTA_AV_CA_IGNORE, BTA_AV_CA_INIT_ST }, /* CA_RESPONSE_EVT */ {BTA_AV_CA_IGNORE, BTA_AV_CA_INIT_ST }, /* CA_RESPONSE_FINAL_EVT */ {BTA_AV_CA_IGNORE, BTA_AV_CA_INIT_ST }, /* CA_GOEP_CONNECT_EVT */ {BTA_AV_CA_IGNORE, BTA_AV_CA_INIT_ST }, /* CA_GOEP_DISCONNECT_EVT */ {BTA_AV_CA_IGNORE, BTA_AV_CA_INIT_ST }, }{...}; /* state table for opening state */ static const UINT8 bta_av_ca_st_opening[][BTA_AV_CA_NUM_COLS] = { /* Event Action 1 Next state */ /* API_CA_OPEN_EVT */ {BTA_AV_CA_IGNORE, BTA_AV_CA_OPENING_ST }, /* API_CA_CLOSE_EVT */ {BTA_AV_CA_FORCE_DISCONNECT, BTA_AV_CA_INIT_ST }, /* API_CA_GET_EVT */ {BTA_AV_CA_IGNORE, BTA_AV_CA_OPENING_ST }, /* CA_RESPONSE_EVT */ {BTA_AV_CA_IGNORE, BTA_AV_CA_OPENING_ST }, /* CA_RESPONSE_FINAL_EVT */ {BTA_AV_CA_IGNORE, BTA_AV_CA_OPENING_ST }, /* CA_GOEP_CONNECT_EVT */ {BTA_AV_CA_GOEP_CONNECT, BTA_AV_CA_CONNECTING_ST }, /* CA_GOEP_DISCONNECT_EVT */ {BTA_AV_CA_GOEP_DISCONNECT, BTA_AV_CA_INIT_ST }, }{...}; /* state table for connecting state */ static const UINT8 bta_av_ca_st_connecting[][BTA_AV_CA_NUM_COLS] = { /* Event Action 1 Next state */ /* API_CA_OPEN_EVT */ {BTA_AV_CA_IGNORE, BTA_AV_CA_CONNECTING_ST }, /* API_CA_CLOSE_EVT */ {BTA_AV_CA_FORCE_DISCONNECT, BTA_AV_CA_INIT_ST }, /* API_CA_GET_EVT */ {BTA_AV_CA_IGNORE, BTA_AV_CA_CONNECTING_ST }, /* CA_RESPONSE_EVT */ {BTA_AV_CA_IGNORE, BTA_AV_CA_CONNECTING_ST }, /* CA_RESPONSE_FINAL_EVT */ {BTA_AV_CA_RESPONSE_FINAL, BTA_AV_CA_CONNECTED_ST }, /* CA_GOEP_CONNECT_EVT */ {BTA_AV_CA_IGNORE, BTA_AV_CA_CONNECTING_ST }, /* CA_GOEP_DISCONNECT_EVT */ {BTA_AV_CA_GOEP_DISCONNECT, BTA_AV_CA_INIT_ST }, }{...}; /* state table for connected state */ static const UINT8 bta_av_ca_st_connected[][BTA_AV_CA_NUM_COLS] = { /* Event Action 1 Next state */ /* API_CA_OPEN_EVT */ {BTA_AV_CA_IGNORE, BTA_AV_CA_CONNECTED_ST }, /* API_CA_CLOSE_EVT */ {BTA_AV_API_CA_CLOSE, BTA_AV_CA_CLOSING_ST }, /* API_CA_GET_EVT */ {BTA_AV_API_CA_GET, BTA_AV_CA_GETTING_ST }, /* CA_RESPONSE_EVT */ {BTA_AV_CA_IGNORE, BTA_AV_CA_CONNECTED_ST }, /* CA_RESPONSE_FINAL_EVT */ {BTA_AV_CA_IGNORE, BTA_AV_CA_CONNECTED_ST }, /* CA_GOEP_CONNECT_EVT */ {BTA_AV_CA_IGNORE, BTA_AV_CA_CONNECTED_ST }, /* CA_GOEP_DISCONNECT_EVT */ {BTA_AV_CA_GOEP_DISCONNECT, BTA_AV_CA_INIT_ST }, }{...}; /* state table for getting state */ static const UINT8 bta_av_ca_st_getting[][BTA_AV_CA_NUM_COLS] = { /* Event Action 1 Next state */ /* API_CA_OPEN_EVT */ {BTA_AV_CA_IGNORE, BTA_AV_CA_GETTING_ST }, /* API_CA_CLOSE_EVT */ {BTA_AV_CA_FORCE_DISCONNECT, BTA_AV_CA_INIT_ST }, /* API_CA_GET_EVT */ {BTA_AV_CA_IGNORE, BTA_AV_CA_GETTING_ST }, /* CA_RESPONSE_EVT */ {BTA_AV_CA_RESPONSE, BTA_AV_CA_GETTING_ST }, /* CA_RESPONSE_FINAL_EVT */ {BTA_AV_CA_RESPONSE_FINAL, BTA_AV_CA_CONNECTED_ST }, /* CA_GOEP_CONNECT_EVT */ {BTA_AV_CA_IGNORE, BTA_AV_CA_GETTING_ST }, /* CA_GOEP_DISCONNECT_EVT */ {BTA_AV_CA_GOEP_DISCONNECT, BTA_AV_CA_INIT_ST }, }{...}; /* state table for closing state */ static const UINT8 bta_av_ca_st_closing[][BTA_AV_CA_NUM_COLS] = { /* Event Action 1 Next state */ /* API_CA_OPEN_EVT */ {BTA_AV_CA_IGNORE, BTA_AV_CA_CLOSING_ST }, /* API_CA_CLOSE_EVT */ {BTA_AV_CA_FORCE_DISCONNECT, BTA_AV_CA_INIT_ST }, /* API_CA_GET_EVT */ {BTA_AV_CA_IGNORE, BTA_AV_CA_CLOSING_ST }, /* CA_RESPONSE_EVT */ {BTA_AV_CA_IGNORE, BTA_AV_CA_CLOSING_ST }, /* CA_RESPONSE_FINAL_EVT */ {BTA_AV_CA_RESPONSE_FINAL, BTA_AV_CA_INIT_ST }, /* CA_GOEP_CONNECT_EVT */ {BTA_AV_CA_IGNORE, BTA_AV_CA_CLOSING_ST }, /* CA_GOEP_DISCONNECT_EVT */ {BTA_AV_CA_GOEP_DISCONNECT, BTA_AV_CA_INIT_ST }, }{...}; /* type for state table */ typedef const UINT8 (*tBTA_AV_CA_ST_TBL)[BTA_AV_CA_NUM_COLS]; /* state table */ static const tBTA_AV_CA_ST_TBL bta_av_ca_st_tbl[] = { bta_av_ca_st_init, bta_av_ca_st_opening, bta_av_ca_st_connecting, bta_av_ca_st_connected, bta_av_ca_st_getting, bta_av_ca_st_closing }{...}; void bta_av_ca_sm_execute(tBTA_AV_RCB *p_rcb, UINT16 event, tBTA_AV_DATA *p_data) { tBTA_AV_CA_ST_TBL state_table; UINT8 action; /* look up the state table for the current state */ state_table = bta_av_ca_st_tbl[p_rcb->cover_art_state]; event -= BTA_AV_CA_FIRST_SM_EVT; /* set next state */ p_rcb->cover_art_state = state_table[event][BTA_AV_CA_NEXT_STATE]; /* execute action functions */ if ((action = state_table[event][BTA_AV_CA_ACTION_COL]) != BTA_AV_CA_IGNORE) { (*bta_av_ca_action[action])(p_rcb, p_data); }{...} }{...} /* ... */ #endif /* BTA_AV_CA_INCLUDED */
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