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      1 /******************************************************************************
      2  *
      3  *  Copyright 1998-2012 Broadcom Corporation
      4  *
      5  *  Licensed under the Apache License, Version 2.0 (the "License");
      6  *  you may not use this file except in compliance with the License.
      7  *  You may obtain a copy of the License at:
      8  *
      9  *  http://www.apache.org/licenses/LICENSE-2.0
     10  *
     11  *  Unless required by applicable law or agreed to in writing, software
     12  *  distributed under the License is distributed on an "AS IS" BASIS,
     13  *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
     14  *  See the License for the specific language governing permissions and
     15  *  limitations under the License.
     16  *
     17  ******************************************************************************/
     18 
     19 /******************************************************************************
     20  *
     21  *  This file contains the HeaLth device profile main functions and state
     22  *  machine.
     23  *
     24  ******************************************************************************/
     25 #include <string.h>
     26 
     27 #include "bt_target.h"
     28 #if (HL_INCLUDED == TRUE)
     29 
     30 #include "bt_common.h"
     31 #include "bta_hl_api.h"
     32 #include "bta_hl_int.h"
     33 #include "l2c_api.h"
     34 #include "mca_defs.h"
     35 #include "osi/include/osi.h"
     36 #include "utl.h"
     37 
     38 #if (BTA_HL_DEBUG == TRUE)
     39 static const char* bta_hl_cch_state_code(tBTA_HL_CCH_STATE state_code);
     40 static const char* bta_hl_dch_state_code(tBTA_HL_DCH_STATE state_code);
     41 #endif
     42 
     43 extern uint16_t L2CA_AllocateRandomPsm(void);
     44 extern uint16_t L2CA_AllocatePsm(void);
     45 /*****************************************************************************
     46  * DCH State Table
     47  ****************************************************************************/
     48 /*****************************************************************************
     49  * Constants and types
     50  ****************************************************************************/
     51 /* state machine action enumeration list for DCH */
     52 /* The order of this enumeration must be the same as bta_hl_dch_act_tbl[] */
     53 enum {
     54   BTA_HL_DCH_MCA_CREATE,
     55   BTA_HL_DCH_MCA_CREATE_CFM,
     56   BTA_HL_DCH_MCA_CREATE_IND,
     57   BTA_HL_DCH_MCA_OPEN_CFM,
     58   BTA_HL_DCH_MCA_OPEN_IND,
     59   BTA_HL_DCH_MCA_CLOSE,
     60   BTA_HL_DCH_MCA_CLOSE_CFM,
     61   BTA_HL_DCH_MCA_CLOSE_IND,
     62   BTA_HL_DCH_CLOSE_CMPL,
     63   BTA_HL_DCH_MCA_RCV_DATA,
     64 
     65   BTA_HL_DCH_SDP_INIT,
     66   BTA_HL_DCH_MCA_RECONNECT,
     67   BTA_HL_DCH_MCA_RECONNECT_IND,
     68   BTA_HL_DCH_MCA_RECONNECT_CFM,
     69   BTA_HL_DCH_CLOSE_ECHO_TEST,
     70   BTA_HL_DCH_CREATE_RSP,
     71   BTA_HL_DCH_MCA_ABORT,
     72   BTA_HL_DCH_MCA_ABORT_IND,
     73   BTA_HL_DCH_MCA_ABORT_CFM,
     74   BTA_HL_DCH_MCA_CONG_CHANGE,
     75 
     76   BTA_HL_DCH_SDP_FAIL,
     77   BTA_HL_DCH_SEND_DATA,
     78   BTA_HL_DCH_CI_GET_TX_DATA,
     79   BTA_HL_DCH_CI_PUT_RX_DATA,
     80   BTA_HL_DCH_CI_GET_ECHO_DATA,
     81   BTA_HL_DCH_ECHO_TEST,
     82   BTA_HL_DCH_CI_PUT_ECHO_DATA,
     83   BTA_HL_DCH_IGNORE
     84 };
     85 
     86 typedef void (*tBTA_HL_DCH_ACTION)(uint8_t app_idx, uint8_t mcl_idx,
     87                                    uint8_t mdl_idx, tBTA_HL_DATA* p_data);
     88 
     89 static const tBTA_HL_DCH_ACTION bta_hl_dch_action[] = {
     90     bta_hl_dch_mca_create,        bta_hl_dch_mca_create_cfm,
     91     bta_hl_dch_mca_create_ind,    bta_hl_dch_mca_open_cfm,
     92     bta_hl_dch_mca_open_ind,      bta_hl_dch_mca_close,
     93     bta_hl_dch_mca_close_cfm,     bta_hl_dch_mca_close_ind,
     94     bta_hl_dch_close_cmpl,        bta_hl_dch_mca_rcv_data,
     95 
     96     bta_hl_dch_sdp_init,          bta_hl_dch_mca_reconnect,
     97     bta_hl_dch_mca_reconnect_ind, bta_hl_dch_mca_reconnect_cfm,
     98     bta_hl_dch_close_echo_test,   bta_hl_dch_create_rsp,
     99     bta_hl_dch_mca_abort,         bta_hl_dch_mca_abort_ind,
    100     bta_hl_dch_mca_abort_cfm,     bta_hl_dch_mca_cong_change,
    101 
    102     bta_hl_dch_sdp_fail,          bta_hl_dch_send_data,
    103     bta_hl_dch_ci_get_tx_data,    bta_hl_dch_ci_put_rx_data,
    104     bta_hl_dch_ci_get_echo_data,  bta_hl_dch_echo_test,
    105     bta_hl_dch_ci_put_echo_data,
    106 };
    107 
    108 /* state table information */
    109 #define BTA_HL_DCH_ACTIONS 1    /* number of actions */
    110 #define BTA_HL_DCH_ACTION_COL 0 /* position of action */
    111 #define BTA_HL_DCH_NEXT_STATE 1 /* position of next state */
    112 #define BTA_HL_DCH_NUM_COLS 2   /* number of columns in state tables */
    113 
    114 /* state table for idle state */
    115 static const uint8_t bta_hl_dch_st_idle[][BTA_HL_DCH_NUM_COLS] = {
    116     /* Event                                Action 1                    Next
    117        state */
    118     /* BTA_HL_DCH_SDP_INIT_EVT   */ {BTA_HL_DCH_SDP_INIT,
    119                                      BTA_HL_DCH_OPENING_ST},
    120     /* BTA_HL_DCH_OPEN_EVT       */ {BTA_HL_DCH_MCA_CREATE,
    121                                      BTA_HL_DCH_OPENING_ST},
    122     /* BTA_HL_MCA_CREATE_IND_EVT */ {BTA_HL_DCH_MCA_CREATE_IND,
    123                                      BTA_HL_DCH_OPENING_ST},
    124     /* BTA_HL_MCA_CREATE_CFM_EVT */ {BTA_HL_DCH_IGNORE, BTA_HL_DCH_IDLE_ST},
    125     /* BTA_HL_MCA_OPEN_IND_EVT   */ {BTA_HL_DCH_IGNORE, BTA_HL_DCH_IDLE_ST},
    126 
    127     /* BTA_HL_MCA_OPEN_CFM_EVT   */ {BTA_HL_DCH_IGNORE, BTA_HL_DCH_IDLE_ST},
    128     /* BTA_HL_DCH_CLOSE_EVT      */ {BTA_HL_DCH_IGNORE, BTA_HL_DCH_IDLE_ST},
    129     /* BTA_HL_MCA_CLOSE_IND_EVT  */ {BTA_HL_DCH_IGNORE, BTA_HL_DCH_IDLE_ST},
    130     /* BTA_HL_MCA_CLOSE_CFM_EVT  */ {BTA_HL_DCH_IGNORE, BTA_HL_DCH_IDLE_ST},
    131     /* BTA_HL_API_SEND_DATA_EVT  */ {BTA_HL_DCH_IGNORE, BTA_HL_DCH_IDLE_ST},
    132 
    133     /* BTA_HL_MCA_RCV_DATA_EVT   */ {BTA_HL_DCH_IGNORE, BTA_HL_DCH_IDLE_ST},
    134     /* BTA_HL_DCH_CLOSE_CMPL_EVT */ {BTA_HL_DCH_IGNORE, BTA_HL_DCH_IDLE_ST},
    135     /* BTA_HL_DCH_RECONNECT_EVT  */ {BTA_HL_DCH_MCA_RECONNECT,
    136                                      BTA_HL_DCH_OPENING_ST},
    137     /* BTA_HL_DCH_SDP_FAIL_EVT   */ {BTA_HL_DCH_IGNORE, BTA_HL_DCH_IDLE_ST},
    138     /* BTA_HL_MCA_RECONNECT_IND_EVT*/ {BTA_HL_DCH_MCA_RECONNECT_IND,
    139                                        BTA_HL_DCH_OPENING_ST},
    140 
    141     /* BTA_HL_MCA_RECONNECT_CFM_EVT*/ {BTA_HL_DCH_IGNORE, BTA_HL_DCH_IDLE_ST},
    142     /* BTA_HL_DCH_CLOSE_ECHO_TEST_EVT*/ {BTA_HL_DCH_IGNORE, BTA_HL_DCH_IDLE_ST},
    143     /* BTA_HL_API_DCH_CREATE_RSP_EVT */ {BTA_HL_DCH_IGNORE, BTA_HL_DCH_IDLE_ST},
    144     /* BTA_HL_DCH_ABORT_EVT */ {BTA_HL_DCH_IGNORE, BTA_HL_DCH_IDLE_ST},
    145     /* BTA_HL_MCA_ABORT_IND_EVT */ {BTA_HL_DCH_IGNORE, BTA_HL_DCH_IDLE_ST},
    146 
    147     /* BTA_HL_MCA_ABORT_CFM_EVT */ {BTA_HL_DCH_IGNORE, BTA_HL_DCH_IDLE_ST},
    148     /* BTA_HL_MCA_CONG_CHG_EVT */ {BTA_HL_DCH_IGNORE, BTA_HL_DCH_IDLE_ST},
    149     /* BTA_HL_CI_GET_TX_DATA_EVT  */ {BTA_HL_DCH_IGNORE, BTA_HL_DCH_IDLE_ST},
    150     /* BTA_HL_CI_PUT_RX_DATA_EVT  */ {BTA_HL_DCH_IGNORE, BTA_HL_DCH_IDLE_ST},
    151     /* BTA_HL_CI_GET_ECHO_DATA_EVT  */ {BTA_HL_DCH_IGNORE, BTA_HL_DCH_IDLE_ST},
    152     /* BTA_HL_DCH_ECHO_TEST_EVT  */ {BTA_HL_DCH_ECHO_TEST,
    153                                      BTA_HL_DCH_OPENING_ST},
    154     /* BTA_HL_CI_PUT_ECHO_DATA_EVT  */ {BTA_HL_DCH_IGNORE, BTA_HL_DCH_IDLE_ST}};
    155 
    156 /* state table for opening state */
    157 static const uint8_t bta_hl_dch_st_opening[][BTA_HL_DCH_NUM_COLS] = {
    158     /* Event                                Action 1                    Next
    159        state */
    160     /* BTA_HL_DCH_SDP_INIT_EVT   */ {BTA_HL_DCH_SDP_INIT,
    161                                      BTA_HL_DCH_OPENING_ST},
    162     /* BTA_HL_DCH_OPEN_EVT       */ {BTA_HL_DCH_MCA_CREATE,
    163                                      BTA_HL_DCH_OPENING_ST},
    164     /* BTA_HL_MCA_CREATE_IND_EVT */ {BTA_HL_DCH_IGNORE, BTA_HL_DCH_OPENING_ST},
    165     /* BTA_HL_MCA_CREATE_CFM_EVT */ {BTA_HL_DCH_MCA_CREATE_CFM,
    166                                      BTA_HL_DCH_OPENING_ST},
    167     /* BTA_HL_MCA_OPEN_IND_EVT   */ {BTA_HL_DCH_MCA_OPEN_IND,
    168                                      BTA_HL_DCH_OPEN_ST},
    169     /* BTA_HL_MCA_OPEN_CFM_EVT   */ {BTA_HL_DCH_MCA_OPEN_CFM,
    170                                      BTA_HL_DCH_OPEN_ST},
    171     /* BTA_HL_DCH_CLOSE_EVT      */ {BTA_HL_DCH_IGNORE, BTA_HL_DCH_OPENING_ST},
    172     /* BTA_HL_MCA_CLOSE_IND_EVT  */ {BTA_HL_DCH_MCA_CLOSE_IND,
    173                                      BTA_HL_DCH_CLOSING_ST},
    174     /* BTA_HL_MCA_CLOSE_CFM_EVT  */ {BTA_HL_DCH_MCA_CLOSE_CFM,
    175                                      BTA_HL_DCH_CLOSING_ST},
    176     /* BTA_HL_API_SEND_DATA_EVT  */ {BTA_HL_DCH_IGNORE, BTA_HL_DCH_OPEN_ST},
    177 
    178     /* BTA_HL_MCA_RCV_DATA_EVT   */ {BTA_HL_DCH_IGNORE, BTA_HL_DCH_OPEN_ST},
    179     /* BTA_HL_DCH_CLOSE_CMPL_EVT */ {BTA_HL_DCH_CLOSE_CMPL, BTA_HL_DCH_IDLE_ST},
    180     /* BTA_HL_DCH_RECONNECT_EVT  */ {BTA_HL_DCH_MCA_RECONNECT,
    181                                      BTA_HL_DCH_OPENING_ST},
    182     /* BTA_HL_DCH_SDP_FAIL_EVT   */ {BTA_HL_DCH_SDP_FAIL,
    183                                      BTA_HL_DCH_CLOSING_ST},
    184     /* BTA_HL_MCA_RECONNECT_IND_EVT*/ {BTA_HL_DCH_IGNORE, BTA_HL_DCH_IDLE_ST},
    185     /* BTA_HL_MCA_RECONNECT_CFM_EVT*/ {BTA_HL_DCH_MCA_RECONNECT_CFM,
    186                                        BTA_HL_DCH_OPENING_ST},
    187     /* BTA_HL_DCH_CLOSE_ECHO_TEST_EVT*/ {BTA_HL_DCH_IGNORE,
    188                                          BTA_HL_DCH_OPENING_ST},
    189     /* BTA_HL_API_DCH_CREATE_RSP_EVT */ {BTA_HL_DCH_CREATE_RSP,
    190                                          BTA_HL_DCH_OPENING_ST},
    191     /* BTA_HL_DCH_ABORT_EVT */ {BTA_HL_DCH_MCA_ABORT, BTA_HL_DCH_OPENING_ST},
    192     /* BTA_HL_MCA_ABORT_IND_EVT */ {BTA_HL_DCH_MCA_ABORT_IND,
    193                                     BTA_HL_DCH_OPENING_ST},
    194 
    195     /* BTA_HL_MCA_ABORT_CFM_EVT */ {BTA_HL_DCH_MCA_ABORT_CFM,
    196                                     BTA_HL_DCH_OPENING_ST},
    197     /* BTA_HL_MCA_CONG_CHG_EVT */ {BTA_HL_DCH_IGNORE, BTA_HL_DCH_OPENING_ST},
    198     /* BTA_HL_CI_GET_TX_DATA_EVT  */ {BTA_HL_DCH_IGNORE, BTA_HL_DCH_OPENING_ST},
    199     /* BTA_HL_CI_PUT_RX_DATA_EVT  */ {BTA_HL_DCH_IGNORE, BTA_HL_DCH_OPENING_ST},
    200     /* BTA_HL_CI_GET_ECHO_DATA_EVT  */ {BTA_HL_DCH_CI_GET_ECHO_DATA,
    201                                         BTA_HL_DCH_OPENING_ST},
    202     /* BTA_HL_DCH_ECHO_TEST_EVT  */ {BTA_HL_DCH_ECHO_TEST,
    203                                      BTA_HL_DCH_OPENING_ST},
    204     /* BTA_HL_CI_PUT_ECHO_DATA_EVT  */ {BTA_HL_DCH_IGNORE,
    205                                         BTA_HL_DCH_OPENING_ST}};
    206 
    207 /* state table for open state */
    208 static const uint8_t bta_hl_dch_st_open[][BTA_HL_DCH_NUM_COLS] = {
    209     /* Event                                Action 1                  Next
    210        state */
    211     /* BTA_HL_DCH_SDP_INIT_EVT   */ {BTA_HL_DCH_IGNORE, BTA_HL_DCH_OPEN_ST},
    212     /* BTA_HL_DCH_OPEN_EVT       */ {BTA_HL_DCH_IGNORE, BTA_HL_DCH_OPEN_ST},
    213     /* BTA_HL_MCA_CREATE_IND_EVT */ {BTA_HL_DCH_IGNORE, BTA_HL_DCH_OPEN_ST},
    214     /* BTA_HL_MCA_CREATE_CFM_EVT */ {BTA_HL_DCH_IGNORE, BTA_HL_DCH_OPEN_ST},
    215     /* BTA_HL_MCA_OPEN_IND_EVT   */ {BTA_HL_DCH_IGNORE, BTA_HL_DCH_OPEN_ST},
    216     /* BTA_HL_MCA_OPEN_CFM_EVT   */ {BTA_HL_DCH_IGNORE, BTA_HL_DCH_OPEN_ST},
    217     /* BTA_HL_DCH_CLOSE_EVT      */ {BTA_HL_DCH_MCA_CLOSE,
    218                                      BTA_HL_DCH_CLOSING_ST},
    219     /* BTA_HL_MCA_CLOSE_IND_EVT  */ {BTA_HL_DCH_MCA_CLOSE_IND,
    220                                      BTA_HL_DCH_CLOSING_ST},
    221     /* BTA_HL_MCA_CLOSE_CFM_EVT  */ {BTA_HL_DCH_MCA_CLOSE_CFM,
    222                                      BTA_HL_DCH_CLOSING_ST},
    223     /* BTA_HL_API_SEND_DATA_EVT  */ {BTA_HL_DCH_SEND_DATA, BTA_HL_DCH_OPEN_ST},
    224 
    225     /* BTA_HL_MCA_RCV_DATA_EVT   */ {BTA_HL_DCH_MCA_RCV_DATA,
    226                                      BTA_HL_DCH_OPEN_ST},
    227     /* BTA_HL_DCH_CLOSE_CMPL_EVT */ {BTA_HL_DCH_CLOSE_CMPL, BTA_HL_DCH_IDLE_ST},
    228     /* BTA_HL_DCH_RECONNECT_EVT  */ {BTA_HL_DCH_IGNORE, BTA_HL_DCH_OPEN_ST},
    229     /* BTA_HL_DCH_SDP_FAIL_EVT   */ {BTA_HL_DCH_IGNORE, BTA_HL_DCH_OPEN_ST},
    230     /* BTA_HL_MCA_RECONNECT_IND_EVT*/ {BTA_HL_DCH_IGNORE, BTA_HL_DCH_OPEN_ST},
    231     /* BTA_HL_MCA_RECONNECT_CFM_EVT*/ {BTA_HL_DCH_IGNORE, BTA_HL_DCH_OPEN_ST},
    232     /* BTA_HL_DCH_CLOSE_ECHO_TEST_EVT*/ {BTA_HL_DCH_CLOSE_ECHO_TEST,
    233                                          BTA_HL_DCH_CLOSING_ST},
    234     /* BTA_HL_API_DCH_CREATE_RSP_EVT */ {BTA_HL_DCH_IGNORE, BTA_HL_DCH_OPEN_ST},
    235     /* BTA_HL_DCH_ABORT_EVT */ {BTA_HL_DCH_IGNORE, BTA_HL_DCH_OPEN_ST},
    236     /* BTA_HL_MCA_ABORT_IND_EVT */ {BTA_HL_DCH_IGNORE, BTA_HL_DCH_OPEN_ST},
    237 
    238     /* BTA_HL_DCH_ABORT_CFM_EVT */ {BTA_HL_DCH_IGNORE, BTA_HL_DCH_OPEN_ST},
    239     /* BTA_HL_MCA_CONG_CHG_EVT */ {BTA_HL_DCH_MCA_CONG_CHANGE,
    240                                    BTA_HL_DCH_OPEN_ST},
    241     /* BTA_HL_CI_GET_TX_DATA_EVT  */ {BTA_HL_DCH_CI_GET_TX_DATA,
    242                                       BTA_HL_DCH_OPEN_ST},
    243     /* BTA_HL_CI_PUT_RX_DATA_EVT  */ {BTA_HL_DCH_CI_PUT_RX_DATA,
    244                                       BTA_HL_DCH_OPEN_ST},
    245     /* BTA_HL_CI_GET_ECHO_DATA_EVT  */ {BTA_HL_DCH_CI_GET_ECHO_DATA,
    246                                         BTA_HL_DCH_OPEN_ST},
    247     /* BTA_HL_DCH_ECHO_TEST_EVT  */ {BTA_HL_DCH_IGNORE, BTA_HL_DCH_OPEN_ST},
    248     /* BTA_HL_CI_PUT_ECHO_DATA_EVT  */ {BTA_HL_DCH_CI_PUT_ECHO_DATA,
    249                                         BTA_HL_DCH_OPEN_ST}};
    250 
    251 /* state table for closing state */
    252 static const uint8_t bta_hl_dch_st_closing[][BTA_HL_DCH_NUM_COLS] = {
    253     /* Event                                Action 1 Next state */
    254     /* BTA_HL_DCH_SDP_INIT_EVT   */ {BTA_HL_DCH_IGNORE, BTA_HL_DCH_CLOSING_ST},
    255     /* BTA_HL_DCH_OPEN_EVT       */ {BTA_HL_DCH_IGNORE, BTA_HL_DCH_CLOSING_ST},
    256     /* BTA_HL_MCA_CREATE_IND_EVT */ {BTA_HL_DCH_IGNORE, BTA_HL_DCH_CLOSING_ST},
    257     /* BTA_HL_MCA_CREATE_CFM_EVT */ {BTA_HL_DCH_IGNORE, BTA_HL_DCH_CLOSING_ST},
    258     /* BTA_HL_MCA_OPEN_IND_EVT   */ {BTA_HL_DCH_IGNORE, BTA_HL_DCH_CLOSING_ST},
    259     /* BTA_HL_MCA_OPEN_CFM_EVT   */ {BTA_HL_DCH_IGNORE, BTA_HL_DCH_CLOSING_ST},
    260     /* BTA_HL_DCH_CLOSE_EVT      */ {BTA_HL_DCH_MCA_CLOSE,
    261                                      BTA_HL_DCH_CLOSING_ST},
    262     /* BTA_HL_MCA_CLOSE_IND_EVT  */ {BTA_HL_DCH_IGNORE, BTA_HL_DCH_CLOSING_ST},
    263     /* BTA_HL_MCA_CLOSE_CFM_EVT  */ {BTA_HL_DCH_MCA_CLOSE_CFM,
    264                                      BTA_HL_DCH_CLOSING_ST},
    265     /* BTA_HL_API_SEND_DATA_EVT  */ {BTA_HL_DCH_IGNORE, BTA_HL_DCH_CLOSING_ST},
    266 
    267     /* BTA_HL_MCA_RCV_DATA_EVT   */ {BTA_HL_DCH_IGNORE, BTA_HL_DCH_CLOSING_ST},
    268     /* BTA_HL_DCH_CLOSE_CMPL_EVT */ {BTA_HL_DCH_CLOSE_CMPL, BTA_HL_DCH_IDLE_ST},
    269     /* BTA_HL_DCH_RECONNECT_EVT  */ {BTA_HL_DCH_IGNORE, BTA_HL_DCH_CLOSING_ST},
    270     /* BTA_HL_DCH_SDP_FAIL_EVT   */ {BTA_HL_DCH_IGNORE, BTA_HL_DCH_CLOSING_ST},
    271     /* BTA_HL_MCA_RECONNECT_IND_EVT*/ {BTA_HL_DCH_IGNORE,
    272                                        BTA_HL_DCH_CLOSING_ST},
    273     /* BTA_HL_MCA_RECONNECT_CFM_EVT*/ {BTA_HL_DCH_IGNORE,
    274                                        BTA_HL_DCH_CLOSING_ST},
    275     /* BTA_HL_DCH_CLOSE_ECHO_TEST_EVT*/ {BTA_HL_DCH_IGNORE,
    276                                          BTA_HL_DCH_CLOSING_ST},
    277     /* BTA_HL_API_DCH_CREATE_RSP_EVT */ {BTA_HL_DCH_IGNORE,
    278                                          BTA_HL_DCH_CLOSING_ST},
    279     /* BTA_HL_DCH_ABORT_EVT */ {BTA_HL_DCH_IGNORE, BTA_HL_DCH_CLOSING_ST},
    280     /* BTA_HL_MCA_ABORT_IND_EVT */ {BTA_HL_DCH_IGNORE, BTA_HL_DCH_CLOSING_ST},
    281 
    282     /* BTA_HL_DCH_ABORT_CFM_EVT */ {BTA_HL_DCH_IGNORE, BTA_HL_DCH_CLOSING_ST},
    283     /* BTA_HL_MCA_CONG_CHG_EVT */ {BTA_HL_DCH_IGNORE, BTA_HL_DCH_CLOSING_ST},
    284     /* BTA_HL_CI_GET_TX_DATA_EVT  */ {BTA_HL_DCH_CI_GET_TX_DATA,
    285                                       BTA_HL_DCH_CLOSING_ST},
    286     /* BTA_HL_CI_PUT_RX_DATA_EVT  */ {BTA_HL_DCH_CI_PUT_RX_DATA,
    287                                       BTA_HL_DCH_CLOSING_ST},
    288     /* BTA_HL_CI_GET_ECHO_DATA_EVT  */ {BTA_HL_DCH_CI_GET_ECHO_DATA,
    289                                         BTA_HL_DCH_CLOSING_ST},
    290     /* BTA_HL_DCH_ECHO_TEST_EVT  */ {BTA_HL_DCH_IGNORE, BTA_HL_DCH_CLOSING_ST},
    291     /* BTA_HL_CI_PUT_ECHO_DATA_EVT  */ {BTA_HL_DCH_CI_PUT_ECHO_DATA,
    292                                         BTA_HL_DCH_CLOSING_ST}};
    293 
    294 /* type for state table */
    295 typedef const uint8_t (*tBTA_HL_DCH_ST_TBL)[BTA_HL_DCH_NUM_COLS];
    296 
    297 /* state table */
    298 const tBTA_HL_DCH_ST_TBL bta_hl_dch_st_tbl[] = {
    299     bta_hl_dch_st_idle, bta_hl_dch_st_opening, bta_hl_dch_st_open,
    300     bta_hl_dch_st_closing};
    301 
    302 /*****************************************************************************
    303  * CCH State Table
    304  ****************************************************************************/
    305 /*****************************************************************************
    306  * Constants and types
    307  ****************************************************************************/
    308 /* state machine action enumeration list for CCH */
    309 enum {
    310   BTA_HL_CCH_SDP_INIT,
    311   BTA_HL_CCH_MCA_OPEN,
    312   BTA_HL_CCH_MCA_CLOSE,
    313   BTA_HL_CCH_CLOSE_CMPL,
    314   BTA_HL_CCH_MCA_CONNECT,
    315   BTA_HL_CCH_MCA_DISCONNECT,
    316   BTA_HL_CCH_MCA_RSP_TOUT,
    317   BTA_HL_CCH_MCA_DISC_OPEN,
    318   BTA_HL_CCH_IGNORE
    319 };
    320 
    321 /* type for action functions */
    322 typedef void (*tBTA_HL_CCH_ACTION)(uint8_t app_idx, uint8_t mcl_idx,
    323                                    tBTA_HL_DATA* p_data);
    324 
    325 /* action function list for MAS */
    326 const tBTA_HL_CCH_ACTION bta_hl_cch_action[] = {
    327     bta_hl_cch_sdp_init,     bta_hl_cch_mca_open,     bta_hl_cch_mca_close,
    328     bta_hl_cch_close_cmpl,   bta_hl_cch_mca_connect,  bta_hl_cch_mca_disconnect,
    329     bta_hl_cch_mca_rsp_tout, bta_hl_cch_mca_disc_open};
    330 
    331 /* state table information */
    332 #define BTA_HL_CCH_ACTIONS 1    /* number of actions */
    333 #define BTA_HL_CCH_NEXT_STATE 1 /* position of next state */
    334 #define BTA_HL_CCH_NUM_COLS 2   /* number of columns in state tables */
    335 
    336 /* state table for MAS idle state */
    337 static const uint8_t bta_hl_cch_st_idle[][BTA_HL_CCH_NUM_COLS] = {
    338     /* Event                          Action 1                  Next state */
    339     /* BTA_HL_CCH_OPEN_EVT           */ {BTA_HL_CCH_SDP_INIT,
    340                                          BTA_HL_CCH_OPENING_ST},
    341     /* BTA_HL_CCH_SDP_OK_EVT         */ {BTA_HL_CCH_IGNORE, BTA_HL_CCH_IDLE_ST},
    342     /* BTA_HL_CCH_SDP_FAIL_EVT       */ {BTA_HL_CCH_IGNORE, BTA_HL_CCH_IDLE_ST},
    343     /* BTA_HL_MCA_CONNECT_IND_EVT    */ {BTA_HL_CCH_MCA_CONNECT,
    344                                          BTA_HL_CCH_OPEN_ST},
    345     /* BTA_HL_MCA_DISCONNECT_IND_EVT */ {BTA_HL_CCH_IGNORE, BTA_HL_CCH_IDLE_ST},
    346     /* BTA_HL_CCH_CLOSE_EVT          */ {BTA_HL_CCH_IGNORE, BTA_HL_CCH_IDLE_ST},
    347     /* BTA_HL_CCH_CLOSE_CMPL_EVT     */ {BTA_HL_CCH_IGNORE, BTA_HL_CCH_IDLE_ST},
    348     /* BTA_HL_CCH_CLOSE_CMPL_EVT     */ {BTA_HL_CCH_IGNORE,
    349                                          BTA_HL_CCH_IDLE_ST}};
    350 
    351 /* state table for obex/rfcomm connection state */
    352 static const uint8_t bta_hl_cch_st_opening[][BTA_HL_CCH_NUM_COLS] = {
    353     /* Event                          Action 1               Next state */
    354     /* BTA_HL_CCH_OPEN_EVT           */ {BTA_HL_CCH_IGNORE,
    355                                          BTA_HL_CCH_OPENING_ST},
    356     /* BTA_HL_CCH_SDP_OK_EVT         */ {BTA_HL_CCH_MCA_OPEN,
    357                                          BTA_HL_CCH_OPENING_ST},
    358     /* BTA_HL_CCH_SDP_FAIL_EVT       */ {BTA_HL_CCH_CLOSE_CMPL,
    359                                          BTA_HL_CCH_IDLE_ST},
    360     /* BTA_HL_MCA_CONNECT_IND_EVT    */ {BTA_HL_CCH_MCA_CONNECT,
    361                                          BTA_HL_CCH_OPEN_ST},
    362     /* BTA_HL_MCA_DISCONNECT_IND_EVT */ {BTA_HL_CCH_MCA_DISCONNECT,
    363                                          BTA_HL_CCH_CLOSING_ST},
    364     /* BTA_HL_CCH_CLOSE_EVT          */ {BTA_HL_CCH_MCA_CLOSE,
    365                                          BTA_HL_CCH_CLOSING_ST},
    366     /* BTA_HL_CCH_CLOSE_CMPL_EVT     */ {BTA_HL_CCH_CLOSE_CMPL,
    367                                          BTA_HL_CCH_IDLE_ST},
    368     /* BTA_HL_MCA_RSP_TOUT_IND_EVT   */ {BTA_HL_CCH_MCA_RSP_TOUT,
    369                                          BTA_HL_CCH_CLOSING_ST}};
    370 
    371 /* state table for open state */
    372 static const uint8_t bta_hl_cch_st_open[][BTA_HL_CCH_NUM_COLS] = {
    373     /* Event                          Action 1                  Next state */
    374     /* BTA_HL_CCH_OPEN_EVT           */ {BTA_HL_CCH_IGNORE, BTA_HL_CCH_OPEN_ST},
    375     /* BTA_HL_CCH_SDP_OK_EVT         */ {BTA_HL_CCH_IGNORE, BTA_HL_CCH_OPEN_ST},
    376     /* BTA_HL_CCH_SDP_FAIL_EVT       */ {BTA_HL_CCH_IGNORE, BTA_HL_CCH_OPEN_ST},
    377     /* BTA_HL_MCA_CONNECT_IND_EVT    */ {BTA_HL_CCH_IGNORE, BTA_HL_CCH_OPEN_ST},
    378     /* BTA_HL_MCA_DISCONNECT_IND_EVT */ {BTA_HL_CCH_MCA_DISCONNECT,
    379                                          BTA_HL_CCH_CLOSING_ST},
    380     /* BTA_HL_CCH_CLOSE_EVT          */ {BTA_HL_CCH_MCA_CLOSE,
    381                                          BTA_HL_CCH_CLOSING_ST},
    382     /* BTA_HL_CCH_CLOSE_CMPL_EVT     */ {BTA_HL_CCH_IGNORE, BTA_HL_CCH_OPEN_ST},
    383     /* BTA_HL_MCA_RSP_TOUT_IND_EVT   */ {BTA_HL_CCH_MCA_RSP_TOUT,
    384                                          BTA_HL_CCH_CLOSING_ST}};
    385 
    386 /* state table for closing state */
    387 static const uint8_t bta_hl_cch_st_closing[][BTA_HL_CCH_NUM_COLS] = {
    388     /* Event                          Action 1                  Next state */
    389     /* BTA_HL_CCH_OPEN_EVT           */ {BTA_HL_CCH_IGNORE,
    390                                          BTA_HL_CCH_CLOSING_ST},
    391     /* BTA_HL_CCH_SDP_OK_EVT         */ {BTA_HL_CCH_CLOSE_CMPL,
    392                                          BTA_HL_CCH_IDLE_ST},
    393     /* BTA_HL_CCH_SDP_FAIL_EVT       */ {BTA_HL_CCH_CLOSE_CMPL,
    394                                          BTA_HL_CCH_IDLE_ST},
    395     /* BTA_HL_MCA_CONNECT_IND_EVT    */ {BTA_HL_CCH_MCA_DISC_OPEN,
    396                                          BTA_HL_CCH_CLOSING_ST},
    397     /* BTA_HL_MCA_DISCONNECT_IND_EVT */ {BTA_HL_CCH_MCA_DISCONNECT,
    398                                          BTA_HL_CCH_CLOSING_ST},
    399     /* BTA_HL_CCH_CLOSE_EVT          */ {BTA_HL_CCH_MCA_CLOSE,
    400                                          BTA_HL_CCH_CLOSING_ST},
    401     /* BTA_HL_CCH_CLOSE_CMPL_EVT     */ {BTA_HL_CCH_CLOSE_CMPL,
    402                                          BTA_HL_CCH_IDLE_ST},
    403     /* BTA_HL_MCA_RSP_TOUT_IND_EVT   */ {BTA_HL_CCH_IGNORE,
    404                                          BTA_HL_CCH_CLOSING_ST}};
    405 
    406 /* type for state table CCH */
    407 typedef const uint8_t (*tBTA_HL_CCH_ST_TBL)[BTA_HL_CCH_NUM_COLS];
    408 
    409 /* MAS state table */
    410 const tBTA_HL_CCH_ST_TBL bta_hl_cch_st_tbl[] = {
    411     bta_hl_cch_st_idle, bta_hl_cch_st_opening, bta_hl_cch_st_open,
    412     bta_hl_cch_st_closing};
    413 
    414 /*****************************************************************************
    415  * Global data
    416  ****************************************************************************/
    417 
    418 /* HL control block */
    419 tBTA_HL_CB bta_hl_cb;
    420 
    421 /*******************************************************************************
    422  *
    423  * Function         bta_hl_cch_sm_execute
    424  *
    425  * Description      State machine event handling function for CCH
    426  *
    427  * Returns          void
    428  *
    429  ******************************************************************************/
    430 void bta_hl_cch_sm_execute(uint8_t app_idx, uint8_t mcl_idx, uint16_t event,
    431                            tBTA_HL_DATA* p_data) {
    432   tBTA_HL_CCH_ST_TBL state_table;
    433   uint8_t action;
    434   int i;
    435   tBTA_HL_MCL_CB* p_cb = BTA_HL_GET_MCL_CB_PTR(app_idx, mcl_idx);
    436 
    437 #if (BTA_HL_DEBUG == TRUE)
    438   tBTA_HL_CCH_STATE in_state = p_cb->cch_state;
    439   uint16_t cur_evt = event;
    440   APPL_TRACE_DEBUG("HDP CCH Event Handler: State 0x%02x [%s], Event [%s]",
    441                    in_state, bta_hl_cch_state_code(in_state),
    442                    bta_hl_evt_code(cur_evt));
    443 #endif
    444 
    445   /* look up the state table for the current state */
    446   state_table = bta_hl_cch_st_tbl[p_cb->cch_state];
    447 
    448   event &= 0x00FF;
    449 
    450   /* set next state */
    451   p_cb->cch_state = state_table[event][BTA_HL_CCH_NEXT_STATE];
    452 
    453   for (i = 0; i < BTA_HL_CCH_ACTIONS; i++) {
    454     action = state_table[event][i];
    455     if (action != BTA_HL_CCH_IGNORE) {
    456       (*bta_hl_cch_action[action])(app_idx, mcl_idx, p_data);
    457     } else {
    458       /* discard HDP data */
    459       bta_hl_discard_data(p_data->hdr.event, p_data);
    460       break;
    461     }
    462   }
    463 #if (BTA_HL_DEBUG == TRUE)
    464   if (in_state != p_cb->cch_state) {
    465     APPL_TRACE_DEBUG("HL CCH State Change: [%s] -> [%s] after [%s]",
    466                      bta_hl_cch_state_code(in_state),
    467                      bta_hl_cch_state_code(p_cb->cch_state),
    468                      bta_hl_evt_code(cur_evt));
    469   }
    470 #endif
    471 }
    472 
    473 /*******************************************************************************
    474  *
    475  * Function         bta_hl_dch_sm_execute
    476  *
    477  * Description      State machine event handling function for DCH
    478  *
    479  * Returns          void
    480  *
    481  ******************************************************************************/
    482 void bta_hl_dch_sm_execute(uint8_t app_idx, uint8_t mcl_idx, uint8_t mdl_idx,
    483                            uint16_t event, tBTA_HL_DATA* p_data) {
    484   tBTA_HL_DCH_ST_TBL state_table;
    485   uint8_t action;
    486   int i;
    487   tBTA_HL_MDL_CB* p_cb = BTA_HL_GET_MDL_CB_PTR(app_idx, mcl_idx, mdl_idx);
    488 
    489 #if (BTA_HL_DEBUG == TRUE)
    490   tBTA_HL_DCH_STATE in_state = p_cb->dch_state;
    491   uint16_t cur_evt = event;
    492   APPL_TRACE_DEBUG("HDP DCH Event Handler: State 0x%02x [%s], Event [%s]",
    493                    in_state, bta_hl_dch_state_code(in_state),
    494                    bta_hl_evt_code(cur_evt));
    495 #endif
    496 
    497   /* look up the state table for the current state */
    498   state_table = bta_hl_dch_st_tbl[p_cb->dch_state];
    499   event -= BTA_HL_DCH_EVT_MIN;
    500 
    501   /* set next state */
    502   p_cb->dch_state = state_table[event][BTA_HL_DCH_NEXT_STATE];
    503 
    504   for (i = 0; i < BTA_HL_DCH_ACTIONS; i++) {
    505     action = state_table[event][i];
    506     if (action != BTA_HL_DCH_IGNORE) {
    507       (*bta_hl_dch_action[action])(app_idx, mcl_idx, mdl_idx, p_data);
    508     } else {
    509       /* discard mas data */
    510       bta_hl_discard_data(p_data->hdr.event, p_data);
    511       break;
    512     }
    513   }
    514 
    515 #if (BTA_HL_DEBUG == TRUE)
    516   if (in_state != p_cb->dch_state) {
    517     APPL_TRACE_DEBUG("HL DCH State Change: [%s] -> [%s] after [%s]",
    518                      bta_hl_dch_state_code(in_state),
    519                      bta_hl_dch_state_code(p_cb->dch_state),
    520                      bta_hl_evt_code(cur_evt));
    521   }
    522 #endif
    523 }
    524 /*******************************************************************************
    525  *
    526  * Function         bta_hl_api_enable
    527  *
    528  * Description      Process the API enable request to enable the HL subsystem
    529  *
    530  * Returns          void
    531  *
    532  ******************************************************************************/
    533 static void bta_hl_api_enable(tBTA_HL_CB* p_cb, tBTA_HL_DATA* p_data) {
    534   tBTA_HL_CTRL evt_data;
    535 
    536   /* If already enabled then reject this request */
    537   if (p_cb->enable) {
    538     APPL_TRACE_ERROR("HL is already enabled");
    539     evt_data.enable_cfm.status = BTA_HL_STATUS_FAIL;
    540     if (p_data->api_enable.p_cback)
    541       p_data->api_enable.p_cback(BTA_HL_CTRL_ENABLE_CFM_EVT,
    542                                  (tBTA_HL_CTRL*)&evt_data);
    543     return;
    544   }
    545 
    546   /* Done with checking. now perform the enable oepration*/
    547   /* initialize control block */
    548   memset(p_cb, 0, sizeof(tBTA_HL_CB));
    549   p_cb->enable = true;
    550   p_cb->p_ctrl_cback = p_data->api_enable.p_cback;
    551   evt_data.enable_cfm.status = BTA_HL_STATUS_OK;
    552   if (p_data->api_enable.p_cback)
    553     p_data->api_enable.p_cback(BTA_HL_CTRL_ENABLE_CFM_EVT,
    554                                (tBTA_HL_CTRL*)&evt_data);
    555 }
    556 /*******************************************************************************
    557  *
    558  * Function         bta_hl_api_disable
    559  *
    560  * Description      Process the API disable request to disable the HL subsystem
    561  *
    562  * Returns          void
    563  *
    564  ******************************************************************************/
    565 static void bta_hl_api_disable(tBTA_HL_CB* p_cb, tBTA_HL_DATA* p_data) {
    566   tBTA_HL_CTRL evt_data;
    567   tBTA_HL_STATUS status = BTA_HL_STATUS_OK;
    568 
    569   if (p_cb->enable) {
    570     p_cb->disabling = true;
    571     bta_hl_check_disable(p_data);
    572   } else {
    573     status = BTA_HL_STATUS_FAIL;
    574     evt_data.disable_cfm.status = status;
    575     if (p_cb->p_ctrl_cback)
    576       p_cb->p_ctrl_cback(BTA_HL_CTRL_DISABLE_CFM_EVT, (tBTA_HL_CTRL*)&evt_data);
    577   }
    578 
    579 #if (BTA_HL_DEBUG == TRUE)
    580   if (status != BTA_HL_STATUS_OK) {
    581     APPL_TRACE_DEBUG("bta_hl_api_disable status =%s",
    582                      bta_hl_status_code(status));
    583   }
    584 #endif
    585 }
    586 
    587 /*******************************************************************************
    588  *
    589  * Function         bta_hl_api_update
    590  *
    591  * Description      Process the API registration request to register an HDP
    592  *                  application
    593  *
    594  * Returns          void
    595  *
    596  ******************************************************************************/
    597 static void bta_hl_api_update(tBTA_HL_CB* p_cb, tBTA_HL_DATA* p_data) {
    598   tBTA_HL evt_data;
    599   tBTA_HL_APP_CB* p_acb = BTA_HL_GET_APP_CB_PTR(0);
    600   tBTA_HL_STATUS status = BTA_HL_STATUS_FAIL;
    601 
    602   APPL_TRACE_DEBUG("bta_hl_api_update");
    603   if (p_cb->enable) {
    604     status = bta_hl_app_update(p_data->api_update.app_id,
    605                                p_data->api_update.is_register);
    606     if (!p_data->api_update.is_register) {
    607       APPL_TRACE_DEBUG("Deregister");
    608       memset(&evt_data, 0, sizeof(tBTA_HL));
    609       evt_data.dereg_cfm.status = status;
    610       evt_data.dereg_cfm.app_id = p_data->api_update.app_id;
    611       if (status == BTA_HL_STATUS_OK)
    612         evt_data.dereg_cfm.app_handle = p_acb->app_handle;
    613       if (p_acb->p_cback) {
    614         p_acb->p_cback(BTA_HL_DEREGISTER_CFM_EVT, (tBTA_HL*)&evt_data);
    615       }
    616       return;
    617     }
    618   }
    619 
    620   if (status != BTA_HL_STATUS_OK) {
    621     if ((status != BTA_HL_STATUS_DUPLICATE_APP_ID) &&
    622         (status != BTA_HL_STATUS_NO_RESOURCE)) {
    623       if (p_acb) memset(p_acb, 0, sizeof(tBTA_HL_APP_CB));
    624     }
    625   }
    626 #if (BTA_HL_DEBUG == TRUE)
    627   if (status != BTA_HL_STATUS_OK) {
    628     APPL_TRACE_DEBUG("bta_hl_api_register status =%s",
    629                      bta_hl_status_code(status));
    630   }
    631 #endif
    632 
    633   memset(&evt_data, 0, sizeof(tBTA_HL));
    634   evt_data.reg_cfm.status = status;
    635   evt_data.reg_cfm.app_id = p_data->api_update.app_id;
    636   if (status == BTA_HL_STATUS_OK)
    637     evt_data.reg_cfm.app_handle = p_acb->app_handle;
    638   if (p_data->api_reg.p_cback) {
    639     p_data->api_reg.p_cback(BTA_HL_REGISTER_CFM_EVT, (tBTA_HL*)&evt_data);
    640   }
    641 
    642   if (status == BTA_HL_STATUS_OK) {
    643     evt_data.sdp_info_ind.app_handle = p_acb->app_handle;
    644     evt_data.sdp_info_ind.ctrl_psm = p_acb->ctrl_psm;
    645     evt_data.sdp_info_ind.data_psm = p_acb->data_psm;
    646     evt_data.sdp_info_ind.data_x_spec = BTA_HL_SDP_IEEE_11073_20601;
    647     evt_data.sdp_info_ind.mcap_sup_procs = BTA_HL_MCAP_SUP_PROC_MASK;
    648 
    649     if (p_data->api_reg.p_cback) {
    650       p_data->api_reg.p_cback(BTA_HL_SDP_INFO_IND_EVT, (tBTA_HL*)&evt_data);
    651     }
    652   }
    653 }
    654 
    655 /*******************************************************************************
    656  *
    657  * Function         bta_hl_api_register
    658  *
    659  * Description      Process the API registration request to register an HDP
    660  *                  application
    661  *
    662  * Returns          void
    663  *
    664  ******************************************************************************/
    665 static void bta_hl_api_register(tBTA_HL_CB* p_cb, tBTA_HL_DATA* p_data) {
    666   tBTA_HL evt_data;
    667   uint8_t app_idx;
    668   tBTA_HL_APP_CB* p_acb = NULL;
    669   tBTA_HL_STATUS status = BTA_HL_STATUS_FAIL;
    670 
    671   if (p_cb->enable) {
    672     if (!bta_hl_is_a_duplicate_id(p_data->api_reg.app_id)) {
    673       if (bta_hl_find_avail_app_idx(&app_idx)) {
    674         p_acb = BTA_HL_GET_APP_CB_PTR(app_idx);
    675         p_acb->in_use = true;
    676         p_acb->app_id = p_data->api_reg.app_id;
    677         p_acb->p_cback = p_data->api_reg.p_cback;
    678         p_acb->sec_mask = p_data->api_reg.sec_mask;
    679         p_acb->dev_type = p_data->api_reg.dev_type;
    680         strlcpy(p_acb->srv_name, p_data->api_reg.srv_name,
    681                 BTA_SERVICE_NAME_LEN);
    682         strlcpy(p_acb->srv_desp, p_data->api_reg.srv_desp,
    683                 BTA_SERVICE_DESP_LEN);
    684         strlcpy(p_acb->provider_name, p_data->api_reg.provider_name,
    685                 BTA_PROVIDER_NAME_LEN);
    686         bta_hl_cb.p_alloc_psm = L2CA_AllocatePSM;
    687         p_acb->ctrl_psm = bta_hl_cb.p_alloc_psm();
    688         p_acb->data_psm = bta_hl_cb.p_alloc_psm();
    689         p_acb->p_mcap_cback = bta_hl_mcap_ctrl_cback;
    690         status = bta_hl_app_registration(app_idx);
    691       } else {
    692         status = BTA_HL_STATUS_NO_RESOURCE;
    693       }
    694     } else {
    695       status = BTA_HL_STATUS_DUPLICATE_APP_ID;
    696     }
    697   }
    698 
    699   if (status != BTA_HL_STATUS_OK) {
    700     if ((status != BTA_HL_STATUS_DUPLICATE_APP_ID) &&
    701         (status != BTA_HL_STATUS_NO_RESOURCE)) {
    702       if (p_acb) memset(p_acb, 0, sizeof(tBTA_HL_APP_CB));
    703     }
    704   }
    705 #if (BTA_HL_DEBUG == TRUE)
    706   if (status != BTA_HL_STATUS_OK) {
    707     APPL_TRACE_DEBUG("bta_hl_api_register status =%s",
    708                      bta_hl_status_code(status));
    709   }
    710 #endif
    711 
    712   memset(&evt_data, 0, sizeof(tBTA_HL));
    713   evt_data.reg_cfm.status = status;
    714   evt_data.reg_cfm.app_id = p_data->api_reg.app_id;
    715   if (status == BTA_HL_STATUS_OK)
    716     evt_data.reg_cfm.app_handle = p_acb->app_handle;
    717   if (p_data->api_reg.p_cback) {
    718     p_data->api_reg.p_cback(BTA_HL_REGISTER_CFM_EVT, (tBTA_HL*)&evt_data);
    719   }
    720 
    721   if (status == BTA_HL_STATUS_OK) {
    722     evt_data.sdp_info_ind.app_handle = p_acb->app_handle;
    723     evt_data.sdp_info_ind.ctrl_psm = p_acb->ctrl_psm;
    724     evt_data.sdp_info_ind.data_psm = p_acb->data_psm;
    725     evt_data.sdp_info_ind.data_x_spec = BTA_HL_SDP_IEEE_11073_20601;
    726     evt_data.sdp_info_ind.mcap_sup_procs = BTA_HL_MCAP_SUP_PROC_MASK;
    727 
    728     if (p_data->api_reg.p_cback) {
    729       p_data->api_reg.p_cback(BTA_HL_SDP_INFO_IND_EVT, (tBTA_HL*)&evt_data);
    730     }
    731   }
    732 }
    733 
    734 /*******************************************************************************
    735  *
    736  * Function         bta_hl_api_deregister
    737  *
    738  * Description      Process the API de-registration request
    739  *
    740  * Returns          void
    741  *
    742  ******************************************************************************/
    743 static void bta_hl_api_deregister(UNUSED_ATTR tBTA_HL_CB* p_cb,
    744                                   tBTA_HL_DATA* p_data) {
    745   uint8_t app_idx;
    746   tBTA_HL_APP_CB* p_acb;
    747 
    748   if (bta_hl_find_app_idx_using_handle(p_data->api_dereg.app_handle,
    749                                        &app_idx)) {
    750     p_acb = BTA_HL_GET_APP_CB_PTR(app_idx);
    751     p_acb->deregistering = true;
    752     bta_hl_check_deregistration(app_idx, p_data);
    753   } else {
    754     APPL_TRACE_ERROR("Invalid app_handle=%d", p_data->api_dereg.app_handle);
    755   }
    756 }
    757 
    758 /*******************************************************************************
    759  *
    760  * Function         bta_hl_api_cch_open
    761  *
    762  * Description      Process the API CCH open request
    763  *
    764  * Returns          void
    765  *
    766  ******************************************************************************/
    767 static void bta_hl_api_cch_open(UNUSED_ATTR tBTA_HL_CB* p_cb,
    768                                 tBTA_HL_DATA* p_data) {
    769   tBTA_HL evt_data;
    770   tBTA_HL_STATUS status = BTA_HL_STATUS_OK;
    771   uint8_t app_idx, mcl_idx;
    772   tBTA_HL_APP_CB* p_acb;
    773   tBTA_HL_MCL_CB* p_mcb;
    774 
    775   if (bta_hl_find_app_idx_using_handle(p_data->api_cch_open.app_handle,
    776                                        &app_idx)) {
    777     if (!bta_hl_find_mcl_idx(app_idx, p_data->api_cch_open.bd_addr, &mcl_idx)) {
    778       if (bta_hl_find_avail_mcl_idx(app_idx, &mcl_idx)) {
    779         p_mcb = BTA_HL_GET_MCL_CB_PTR(app_idx, mcl_idx);
    780         p_mcb->in_use = true;
    781         p_mcb->req_ctrl_psm = p_data->api_cch_open.ctrl_psm;
    782         p_mcb->sec_mask = p_data->api_cch_open.sec_mask;
    783         p_mcb->bd_addr = p_data->api_cch_open.bd_addr;
    784         p_mcb->cch_oper = BTA_HL_CCH_OP_LOCAL_OPEN;
    785       } else {
    786         status = BTA_HL_STATUS_NO_RESOURCE;
    787       }
    788     } else {
    789       /* Only one MCL per BD_ADDR */
    790       status = BTA_HL_STATUS_DUPLICATE_CCH_OPEN;
    791       APPL_TRACE_DEBUG("bta_hl_api_cch_open: CCH already open: status =%d",
    792                        status)
    793       p_acb = BTA_HL_GET_APP_CB_PTR(app_idx);
    794       p_mcb = BTA_HL_GET_MCL_CB_PTR(app_idx, mcl_idx);
    795       if (p_acb->p_cback) {
    796         bta_hl_build_cch_open_cfm(&evt_data, p_data->api_cch_open.app_id,
    797                                   p_data->api_cch_open.app_handle,
    798                                   p_mcb->mcl_handle,
    799                                   p_data->api_cch_open.bd_addr, status);
    800         p_acb->p_cback(BTA_HL_CCH_OPEN_CFM_EVT, (tBTA_HL*)&evt_data);
    801       } else {
    802         APPL_TRACE_ERROR("bta_hl_api_cch_open Null Callback");
    803       }
    804       return;
    805     }
    806   } else {
    807     status = BTA_HL_STATUS_INVALID_APP_HANDLE;
    808   }
    809 #if (BTA_HL_DEBUG == TRUE)
    810   if (status != BTA_HL_STATUS_OK) {
    811     APPL_TRACE_DEBUG("bta_hl_api_cch_open status =%s",
    812                      bta_hl_status_code(status));
    813   }
    814 #endif
    815   switch (status) {
    816     case BTA_HL_STATUS_OK:
    817       bta_hl_cch_sm_execute(app_idx, mcl_idx, BTA_HL_CCH_OPEN_EVT, p_data);
    818       break;
    819     case BTA_HL_STATUS_NO_RESOURCE:
    820     case BTA_HL_STATUS_FAIL:
    821 
    822       p_acb = BTA_HL_GET_APP_CB_PTR(app_idx);
    823       if (p_acb->p_cback) {
    824         bta_hl_build_cch_open_cfm(&evt_data, p_data->api_cch_open.app_id,
    825                                   p_data->api_cch_open.app_handle, 0,
    826                                   p_data->api_cch_open.bd_addr, status);
    827         p_acb->p_cback(BTA_HL_CCH_OPEN_CFM_EVT, (tBTA_HL*)&evt_data);
    828       } else {
    829         APPL_TRACE_ERROR("bta_hl_api_cch_open Null Callback");
    830       }
    831       break;
    832     default:
    833       APPL_TRACE_ERROR("status code=%d", status);
    834       break;
    835   }
    836 }
    837 
    838 /*******************************************************************************
    839  *
    840  * Function         bta_hl_api_cch_close
    841  *
    842  * Description      Process the API CCH close request
    843  *
    844  * Returns          void
    845  *
    846  ******************************************************************************/
    847 static void bta_hl_api_cch_close(UNUSED_ATTR tBTA_HL_CB* p_cb,
    848                                  tBTA_HL_DATA* p_data) {
    849   tBTA_HL evt_data;
    850   tBTA_HL_STATUS status = BTA_HL_STATUS_OK;
    851   uint8_t app_idx, mcl_idx;
    852   tBTA_HL_APP_CB* p_acb;
    853   tBTA_HL_MCL_CB* p_mcb;
    854 
    855   if (bta_hl_find_mcl_idx_using_handle(p_data->api_cch_close.mcl_handle,
    856                                        &app_idx, &mcl_idx)) {
    857     p_mcb = BTA_HL_GET_MCL_CB_PTR(app_idx, mcl_idx);
    858     p_mcb->cch_oper = BTA_HL_CCH_OP_LOCAL_CLOSE;
    859   } else {
    860     status = BTA_HL_STATUS_INVALID_MCL_HANDLE;
    861   }
    862 #if (BTA_HL_DEBUG == TRUE)
    863   if (status != BTA_HL_STATUS_OK) {
    864     APPL_TRACE_DEBUG("bta_hl_api_cch_close status =%s",
    865                      bta_hl_status_code(status));
    866   }
    867 #endif
    868   switch (status) {
    869     case BTA_HL_STATUS_OK:
    870       bta_hl_check_cch_close(app_idx, mcl_idx, p_data, true);
    871       break;
    872 
    873     case BTA_HL_STATUS_INVALID_MCL_HANDLE:
    874       p_acb = BTA_HL_GET_APP_CB_PTR(app_idx);
    875       if (p_acb->p_cback) {
    876         bta_hl_build_cch_close_cfm(&evt_data, p_acb->app_handle,
    877                                    p_data->api_cch_close.mcl_handle, status);
    878         p_acb->p_cback(BTA_HL_CCH_CLOSE_CFM_EVT, (tBTA_HL*)&evt_data);
    879       } else {
    880         APPL_TRACE_ERROR("bta_hl_api_cch_close Null Callback");
    881       }
    882       break;
    883     default:
    884       APPL_TRACE_ERROR("status code=%d", status);
    885       break;
    886   }
    887 }
    888 
    889 /*******************************************************************************
    890  *
    891  * Function         bta_hl_api_dch_open
    892  *
    893  * Description      Process the API DCH open request
    894  *
    895  * Returns          void
    896  *
    897  ******************************************************************************/
    898 static void bta_hl_api_dch_open(UNUSED_ATTR tBTA_HL_CB* p_cb,
    899                                 tBTA_HL_DATA* p_data) {
    900   tBTA_HL evt_data;
    901   tBTA_HL_STATUS status = BTA_HL_STATUS_OK;
    902   uint8_t app_idx, mcl_idx, mdl_idx;
    903   tBTA_HL_APP_CB* p_acb;
    904   tBTA_HL_MCL_CB* p_mcb = NULL;
    905   tBTA_HL_MDL_CB* p_dcb;
    906   tBTA_HL_MDEP_CFG* p_mdep_cfg;
    907   uint8_t mdep_cfg_idx;
    908 
    909   if (bta_hl_find_mcl_idx_using_handle(p_data->api_dch_open.mcl_handle,
    910                                        &app_idx, &mcl_idx)) {
    911     p_acb = BTA_HL_GET_APP_CB_PTR(app_idx);
    912     p_mcb = BTA_HL_GET_MCL_CB_PTR(app_idx, mcl_idx);
    913 
    914     APPL_TRACE_DEBUG(
    915         "bta_hl_api_dch_open: app_ix=%d, mcl_idx=%d, cch_state=%d, "
    916         "mcl_handle=%d",
    917         app_idx, mcl_idx, p_mcb->cch_state, p_data->api_dch_open.mcl_handle);
    918     if (p_mcb->cch_state == BTA_HL_CCH_OPEN_ST) {
    919       if (bta_hl_find_avail_mdl_idx(app_idx, mcl_idx, &mdl_idx)) {
    920         p_dcb = BTA_HL_GET_MDL_CB_PTR(app_idx, mcl_idx, mdl_idx);
    921 
    922         if (bta_hl_find_mdep_cfg_idx(
    923                 app_idx, p_data->api_dch_open.local_mdep_id, &mdep_cfg_idx)) {
    924           if (mdep_cfg_idx &&
    925               (p_acb->sup_feature.mdep[mdep_cfg_idx].mdep_cfg.mdep_role ==
    926                BTA_HL_MDEP_ROLE_SINK)) {
    927             p_data->api_dch_open.local_cfg = BTA_HL_DCH_CFG_NO_PREF;
    928           }
    929 
    930           status = bta_hl_chk_local_cfg(app_idx, mcl_idx, mdep_cfg_idx,
    931                                         p_data->api_dch_open.local_cfg);
    932           if (status == BTA_HL_STATUS_OK) {
    933             if (p_data->api_dch_open.local_mdep_id !=
    934                 BTA_HL_ECHO_TEST_MDEP_ID) {
    935               if (bta_hl_set_ctrl_psm_for_dch(app_idx, mcl_idx, mdl_idx,
    936                                               p_data->api_dch_open.ctrl_psm)) {
    937                 p_mdep_cfg = BTA_HL_GET_MDEP_CFG_PTR(app_idx, mdep_cfg_idx);
    938                 p_dcb->in_use = true;
    939                 p_dcb->dch_oper = BTA_HL_DCH_OP_LOCAL_OPEN;
    940                 p_dcb->sec_mask = p_data->api_dch_open.sec_mask;
    941                 p_dcb->local_mdep_id = p_data->api_dch_open.local_mdep_id;
    942                 p_dcb->peer_mdep_id = p_data->api_dch_open.peer_mdep_id;
    943 
    944                 if (p_mdep_cfg->mdep_role == BTA_HL_MDEP_ROLE_SINK) {
    945                   p_dcb->peer_mdep_role = BTA_HL_MDEP_ROLE_SOURCE;
    946                 } else {
    947                   p_dcb->peer_mdep_role = BTA_HL_MDEP_ROLE_SINK;
    948                 }
    949 
    950                 p_dcb->local_mdep_cfg_idx = mdep_cfg_idx;
    951                 p_dcb->local_cfg = p_data->api_dch_open.local_cfg;
    952 
    953                 bta_hl_find_rxtx_apdu_size(app_idx, mdep_cfg_idx,
    954                                            &p_dcb->max_rx_apdu_size,
    955                                            &p_dcb->max_tx_apdu_size);
    956                 p_dcb->mdl_id =
    957                     bta_hl_allocate_mdl_id(app_idx, mcl_idx, mdl_idx);
    958                 p_dcb->mdl_cfg_idx_included = false;
    959               } else {
    960                 status = BTA_HL_STATUS_INVALID_CTRL_PSM;
    961               }
    962 
    963             } else {
    964               status = BTA_HL_STATUS_INVALID_LOCAL_MDEP_ID;
    965             }
    966           }
    967         } else {
    968           status = BTA_HL_STATUS_INVALID_LOCAL_MDEP_ID;
    969         }
    970       } else {
    971         status = BTA_HL_STATUS_NO_RESOURCE;
    972       }
    973     } else {
    974       status = BTA_HL_STATUS_NO_CCH;
    975     }
    976   } else {
    977     status = BTA_HL_STATUS_INVALID_MCL_HANDLE;
    978   }
    979 
    980 #if (BTA_HL_DEBUG == TRUE)
    981   if (status != BTA_HL_STATUS_OK) {
    982     APPL_TRACE_DEBUG("bta_hl_api_dch_open status =%s",
    983                      bta_hl_status_code(status));
    984   }
    985 #endif
    986   switch (status) {
    987     case BTA_HL_STATUS_OK:
    988       if (p_mcb->sdp.num_recs) {
    989         bta_hl_dch_sm_execute(app_idx, mcl_idx, mdl_idx, BTA_HL_DCH_OPEN_EVT,
    990                               p_data);
    991       } else {
    992         bta_hl_dch_sm_execute(app_idx, mcl_idx, mdl_idx,
    993                               BTA_HL_DCH_SDP_INIT_EVT, p_data);
    994       }
    995       break;
    996     case BTA_HL_STATUS_INVALID_DCH_CFG:
    997     case BTA_HL_STATUS_NO_FIRST_RELIABLE:
    998     case BTA_HL_STATUS_NO_CCH:
    999     case BTA_HL_STATUS_NO_RESOURCE:
   1000     case BTA_HL_STATUS_FAIL:
   1001     case BTA_HL_STATUS_INVALID_LOCAL_MDEP_ID:
   1002     case BTA_HL_STATUS_INVALID_CTRL_PSM:
   1003       p_acb = BTA_HL_GET_APP_CB_PTR(app_idx);
   1004       if (p_acb->p_cback) {
   1005         bta_hl_build_dch_open_cfm(
   1006             &evt_data, p_acb->app_handle, p_data->api_dch_open.mcl_handle,
   1007             BTA_HL_INVALID_MDL_HANDLE, 0, 0, 0, 0, 0, status);
   1008         p_acb->p_cback(BTA_HL_DCH_OPEN_CFM_EVT, (tBTA_HL*)&evt_data);
   1009       } else {
   1010         APPL_TRACE_ERROR("bta_hl_api_dch_open Null Callback");
   1011       }
   1012 
   1013       break;
   1014     default:
   1015       APPL_TRACE_ERROR("Status code=%d", status);
   1016       break;
   1017   }
   1018 }
   1019 /*******************************************************************************
   1020  *
   1021  * Function         bta_hl_api_dch_close
   1022  *
   1023  * Description      Process the API DCH close request
   1024  *
   1025  * Returns          void
   1026  *
   1027  ******************************************************************************/
   1028 static void bta_hl_api_dch_close(UNUSED_ATTR tBTA_HL_CB* p_cb,
   1029                                  tBTA_HL_DATA* p_data) {
   1030   tBTA_HL evt_data;
   1031   tBTA_HL_STATUS status = BTA_HL_STATUS_OK;
   1032   uint8_t app_idx, mcl_idx, mdl_idx;
   1033   tBTA_HL_APP_CB* p_acb;
   1034   tBTA_HL_MCL_CB* p_mcb;
   1035   tBTA_HL_MDL_CB* p_dcb;
   1036 
   1037   if (bta_hl_find_mdl_idx_using_handle(p_data->api_dch_close.mdl_handle,
   1038                                        &app_idx, &mcl_idx, &mdl_idx)) {
   1039     p_dcb = BTA_HL_GET_MDL_CB_PTR(app_idx, mcl_idx, mdl_idx);
   1040     if (p_dcb->dch_state != BTA_HL_DCH_OPEN_ST) {
   1041       status = BTA_HL_STATUS_FAIL;
   1042     }
   1043   } else {
   1044     status = BTA_HL_STATUS_INVALID_MDL_HANDLE;
   1045   }
   1046 
   1047 #if (BTA_HL_DEBUG == TRUE)
   1048   if (status != BTA_HL_STATUS_OK) {
   1049     APPL_TRACE_DEBUG("bta_hl_api_dch_close status =%s",
   1050                      bta_hl_status_code(status));
   1051   }
   1052 #endif
   1053 
   1054   switch (status) {
   1055     case BTA_HL_STATUS_OK:
   1056       bta_hl_dch_sm_execute(app_idx, mcl_idx, mdl_idx, BTA_HL_DCH_CLOSE_EVT,
   1057                             p_data);
   1058       break;
   1059     case BTA_HL_STATUS_FAIL:
   1060       p_acb = BTA_HL_GET_APP_CB_PTR(app_idx);
   1061       if (p_acb->p_cback) {
   1062         p_mcb = BTA_HL_GET_MCL_CB_PTR(app_idx, mcl_idx);
   1063         bta_hl_build_dch_close_cfm(&evt_data, p_acb->app_handle,
   1064                                    p_mcb->mcl_handle,
   1065                                    p_data->api_dch_close.mdl_handle, status);
   1066 
   1067         p_acb->p_cback(BTA_HL_DCH_CLOSE_CFM_EVT, (tBTA_HL*)&evt_data);
   1068       } else {
   1069         APPL_TRACE_ERROR("bta_hl_api_dch_close Null Callback");
   1070       }
   1071       break;
   1072     default:
   1073       APPL_TRACE_ERROR("Status code=%d", status);
   1074       break;
   1075   }
   1076 }
   1077 
   1078 /*******************************************************************************
   1079  *
   1080  * Function         bta_hl_api_dch_reconnect
   1081  *
   1082  * Description      Process the API DCH reconnect request
   1083  *
   1084  * Returns          void
   1085  *
   1086  ******************************************************************************/
   1087 static void bta_hl_api_dch_reconnect(UNUSED_ATTR tBTA_HL_CB* p_cb,
   1088                                      tBTA_HL_DATA* p_data) {
   1089   tBTA_HL evt_data;
   1090   tBTA_HL_STATUS status = BTA_HL_STATUS_OK;
   1091   uint8_t app_idx, mcl_idx, mdl_idx;
   1092   tBTA_HL_APP_CB* p_acb;
   1093   tBTA_HL_MCL_CB* p_mcb = NULL;
   1094   tBTA_HL_MDL_CB* p_dcb;
   1095   uint8_t mdep_cfg_idx;
   1096   uint8_t mdl_cfg_idx;
   1097   tBTA_HL_MDEP_CFG* p_mdep_cfg;
   1098 
   1099   if (bta_hl_find_mcl_idx_using_handle(p_data->api_dch_reconnect.mcl_handle,
   1100                                        &app_idx, &mcl_idx)) {
   1101     p_acb = BTA_HL_GET_APP_CB_PTR(app_idx);
   1102     p_mcb = BTA_HL_GET_MCL_CB_PTR(app_idx, mcl_idx);
   1103     if (p_mcb->cch_state == BTA_HL_CCH_OPEN_ST) {
   1104       if (bta_hl_find_avail_mdl_idx(app_idx, mcl_idx, &mdl_idx)) {
   1105         p_dcb = BTA_HL_GET_MDL_CB_PTR(app_idx, mcl_idx, mdl_idx);
   1106         if (bta_hl_validate_reconnect_params(app_idx, mcl_idx,
   1107                                              &(p_data->api_dch_reconnect),
   1108                                              &mdep_cfg_idx, &mdl_cfg_idx)) {
   1109           if (!bta_hl_is_the_first_reliable_existed(app_idx, mcl_idx) &&
   1110               (p_acb->mdl_cfg[mdl_cfg_idx].dch_mode !=
   1111                BTA_HL_DCH_MODE_RELIABLE)) {
   1112             status = BTA_HL_STATUS_NO_FIRST_RELIABLE;
   1113           } else {
   1114             if (bta_hl_set_ctrl_psm_for_dch(app_idx, mcl_idx, mdl_idx,
   1115                                             p_data->api_dch_open.ctrl_psm)) {
   1116               p_dcb->in_use = true;
   1117               p_dcb->dch_oper = BTA_HL_DCH_OP_LOCAL_RECONNECT;
   1118               p_dcb->sec_mask = (BTA_SEC_AUTHENTICATE | BTA_SEC_ENCRYPT);
   1119               p_dcb->local_mdep_id = p_acb->mdl_cfg[mdl_cfg_idx].local_mdep_id;
   1120               p_dcb->local_mdep_cfg_idx = mdep_cfg_idx;
   1121               p_dcb->local_cfg = BTA_HL_DCH_CFG_UNKNOWN;
   1122               p_dcb->mdl_id = p_data->api_dch_reconnect.mdl_id;
   1123               p_dcb->mdl_cfg_idx_included = true;
   1124               p_dcb->mdl_cfg_idx = mdl_cfg_idx;
   1125               p_dcb->dch_mode = p_acb->mdl_cfg[mdl_cfg_idx].dch_mode;
   1126 
   1127               p_mdep_cfg = BTA_HL_GET_MDEP_CFG_PTR(app_idx, mdep_cfg_idx);
   1128 
   1129               if (p_mdep_cfg->mdep_role == BTA_HL_MDEP_ROLE_SINK) {
   1130                 p_dcb->peer_mdep_role = BTA_HL_MDEP_ROLE_SOURCE;
   1131                 APPL_TRACE_DEBUG("peer mdep role = SOURCE ");
   1132               } else {
   1133                 p_dcb->peer_mdep_role = BTA_HL_MDEP_ROLE_SINK;
   1134                 APPL_TRACE_DEBUG("peer mdep role = SINK ");
   1135               }
   1136 
   1137               bta_hl_find_rxtx_apdu_size(app_idx, mdep_cfg_idx,
   1138                                          &p_dcb->max_rx_apdu_size,
   1139                                          &p_dcb->max_tx_apdu_size);
   1140             } else {
   1141               status = BTA_HL_STATUS_INVALID_CTRL_PSM;
   1142             }
   1143           }
   1144         } else {
   1145           status = BTA_HL_STATUS_INVALID_RECONNECT_CFG;
   1146         }
   1147       } else {
   1148         status = BTA_HL_STATUS_NO_RESOURCE;
   1149       }
   1150     } else {
   1151       status = BTA_HL_STATUS_NO_CCH;
   1152     }
   1153   } else {
   1154     status = BTA_HL_STATUS_INVALID_MCL_HANDLE;
   1155   }
   1156 
   1157 #if (BTA_HL_DEBUG == TRUE)
   1158   if (status != BTA_HL_STATUS_OK) {
   1159     APPL_TRACE_DEBUG("bta_hl_api_dch_reconnect status=%s",
   1160                      bta_hl_status_code(status));
   1161   }
   1162 #endif
   1163 
   1164   switch (status) {
   1165     case BTA_HL_STATUS_OK:
   1166       if (p_mcb->sdp.num_recs) {
   1167         bta_hl_dch_sm_execute(app_idx, mcl_idx, mdl_idx,
   1168                               BTA_HL_DCH_RECONNECT_EVT, p_data);
   1169       } else {
   1170         bta_hl_dch_sm_execute(app_idx, mcl_idx, mdl_idx,
   1171                               BTA_HL_DCH_SDP_INIT_EVT, p_data);
   1172       }
   1173       break;
   1174     case BTA_HL_STATUS_INVALID_RECONNECT_CFG:
   1175     case BTA_HL_STATUS_NO_FIRST_RELIABLE:
   1176     case BTA_HL_STATUS_NO_CCH:
   1177     case BTA_HL_STATUS_NO_RESOURCE:
   1178       p_acb = BTA_HL_GET_APP_CB_PTR(app_idx);
   1179       if (p_acb->p_cback) {
   1180         bta_hl_build_dch_open_cfm(
   1181             &evt_data, p_acb->app_handle, p_data->api_dch_reconnect.mcl_handle,
   1182             BTA_HL_INVALID_MDL_HANDLE, 0, p_data->api_dch_reconnect.mdl_id, 0,
   1183             0, 0, status);
   1184         p_acb->p_cback(BTA_HL_DCH_RECONNECT_CFM_EVT, (tBTA_HL*)&evt_data);
   1185       } else {
   1186         APPL_TRACE_ERROR("bta_hl_api_dch_reconnect Null Callback");
   1187       }
   1188       break;
   1189     default:
   1190       APPL_TRACE_ERROR("Status code=%d", status);
   1191       break;
   1192   }
   1193 }
   1194 
   1195 /*******************************************************************************
   1196  *
   1197  * Function         bta_hl_api_dch_echo_test
   1198  *
   1199  * Description      Process the API Echo test request
   1200  *
   1201  * Returns          void
   1202  *
   1203  ******************************************************************************/
   1204 static void bta_hl_api_dch_echo_test(UNUSED_ATTR tBTA_HL_CB* p_cb,
   1205                                      tBTA_HL_DATA* p_data) {
   1206   tBTA_HL evt_data;
   1207   tBTA_HL_STATUS status = BTA_HL_STATUS_OK;
   1208   uint8_t app_idx, mcl_idx, mdl_idx;
   1209   tBTA_HL_APP_CB* p_acb;
   1210   tBTA_HL_MCL_CB* p_mcb = NULL;
   1211   tBTA_HL_MDL_CB* p_dcb;
   1212   tBTA_HL_ECHO_CFG* p_echo_cfg;
   1213 
   1214   if (bta_hl_find_mcl_idx_using_handle(p_data->api_dch_echo_test.mcl_handle,
   1215                                        &app_idx, &mcl_idx)) {
   1216     p_acb = BTA_HL_GET_APP_CB_PTR(app_idx);
   1217     p_mcb = BTA_HL_GET_MCL_CB_PTR(app_idx, mcl_idx);
   1218     if (p_mcb->cch_state == BTA_HL_CCH_OPEN_ST) {
   1219       if (!p_mcb->echo_test) {
   1220         if (bta_hl_find_avail_mdl_idx(app_idx, mcl_idx, &mdl_idx)) {
   1221           p_dcb = BTA_HL_GET_MDL_CB_PTR(app_idx, mcl_idx, mdl_idx);
   1222 
   1223           if ((p_data->api_dch_echo_test.local_cfg ==
   1224                BTA_HL_DCH_CFG_RELIABLE) ||
   1225               (p_data->api_dch_echo_test.local_cfg ==
   1226                BTA_HL_DCH_CFG_STREAMING)) {
   1227             bool fcs_use =
   1228                 (bool)(p_dcb->chnl_cfg.fcs & BTA_HL_MCA_FCS_USE_MASK);
   1229             p_dcb->p_echo_tx_pkt =
   1230                 bta_hl_get_buf(p_data->api_dch_echo_test.pkt_size, fcs_use);
   1231             if (p_dcb->p_echo_tx_pkt != NULL) {
   1232               if (bta_hl_set_ctrl_psm_for_dch(app_idx, mcl_idx, mdl_idx,
   1233                                               p_data->api_dch_open.ctrl_psm)) {
   1234                 p_dcb->in_use = true;
   1235                 p_dcb->dch_oper = BTA_HL_DCH_OP_LOCAL_OPEN;
   1236                 p_dcb->sec_mask = (BTA_SEC_AUTHENTICATE | BTA_SEC_ENCRYPT);
   1237                 p_dcb->local_mdep_cfg_idx = BTA_HL_ECHO_TEST_MDEP_CFG_IDX;
   1238                 p_dcb->local_cfg = p_data->api_dch_echo_test.local_cfg;
   1239                 p_dcb->local_mdep_id = BTA_HL_ECHO_TEST_MDEP_ID;
   1240                 p_dcb->peer_mdep_id = BTA_HL_ECHO_TEST_MDEP_ID;
   1241                 p_dcb->mdl_id =
   1242                     bta_hl_allocate_mdl_id(app_idx, mcl_idx, mdl_idx);
   1243                 p_dcb->mdl_cfg_idx_included = false;
   1244                 p_echo_cfg = BTA_HL_GET_ECHO_CFG_PTR(app_idx);
   1245                 p_dcb->max_rx_apdu_size = p_echo_cfg->max_rx_apdu_size;
   1246                 p_dcb->max_tx_apdu_size = p_echo_cfg->max_tx_apdu_size;
   1247                 p_mcb->echo_test = true;
   1248                 p_mcb->echo_mdl_idx = mdl_idx;
   1249               } else {
   1250                 status = BTA_HL_STATUS_INVALID_CTRL_PSM;
   1251               }
   1252             } else {
   1253               status = BTA_HL_STATUS_NO_RESOURCE;
   1254             }
   1255           } else {
   1256             status = BTA_HL_STATUS_INVALID_DCH_CFG;
   1257           }
   1258         } else {
   1259           status = BTA_HL_STATUS_NO_RESOURCE;
   1260         }
   1261       } else {
   1262         status = BTA_HL_STATUS_ECHO_TEST_BUSY;
   1263       }
   1264     } else {
   1265       status = BTA_HL_STATUS_NO_CCH;
   1266     }
   1267   } else {
   1268     status = BTA_HL_STATUS_NO_MCL;
   1269   }
   1270 
   1271 #if (BTA_HL_DEBUG == TRUE)
   1272   if (status != BTA_HL_STATUS_OK) {
   1273     APPL_TRACE_DEBUG("bta_hl_api_dch_echo_test status=%s",
   1274                      bta_hl_status_code(status));
   1275   }
   1276 #endif
   1277 
   1278   switch (status) {
   1279     case BTA_HL_STATUS_OK:
   1280       if (p_mcb->sdp.num_recs) {
   1281         bta_hl_dch_sm_execute(app_idx, mcl_idx, mdl_idx,
   1282                               BTA_HL_DCH_ECHO_TEST_EVT, p_data);
   1283       } else {
   1284         bta_hl_dch_sm_execute(app_idx, mcl_idx, mdl_idx,
   1285                               BTA_HL_DCH_SDP_INIT_EVT, p_data);
   1286       }
   1287       break;
   1288     case BTA_HL_STATUS_ECHO_TEST_BUSY:
   1289     case BTA_HL_STATUS_NO_RESOURCE:
   1290     case BTA_HL_STATUS_INVALID_DCH_CFG:
   1291       p_acb = BTA_HL_GET_APP_CB_PTR(app_idx);
   1292       if (p_acb->p_cback) {
   1293         bta_hl_build_echo_test_cfm(&evt_data, p_acb->app_handle,
   1294                                    p_mcb->mcl_handle, status);
   1295         p_acb->p_cback(BTA_HL_DCH_ECHO_TEST_CFM_EVT, (tBTA_HL*)&evt_data);
   1296       } else {
   1297         APPL_TRACE_ERROR("bta_hl_api_dch_echo_test Null Callback");
   1298       }
   1299       break;
   1300 
   1301     default:
   1302       APPL_TRACE_ERROR("Status code=%s", status);
   1303       break;
   1304   }
   1305 }
   1306 
   1307 /*******************************************************************************
   1308  *
   1309  * Function         bta_hl_api_sdp_query
   1310  *
   1311  * Description      Process the API SDP query request
   1312  *
   1313  * Returns          void
   1314  *
   1315  ******************************************************************************/
   1316 static void bta_hl_api_sdp_query(UNUSED_ATTR tBTA_HL_CB* p_cb,
   1317                                  tBTA_HL_DATA* p_data) {
   1318   tBTA_HL evt_data;
   1319   tBTA_HL_STATUS status = BTA_HL_STATUS_OK;
   1320   uint8_t app_idx, mcl_idx;
   1321   tBTA_HL_APP_CB* p_acb;
   1322   tBTA_HL_MCL_CB* p_mcb;
   1323 
   1324   if (bta_hl_find_app_idx_using_handle(p_data->api_sdp_query.app_handle,
   1325                                        &app_idx)) {
   1326     if (!bta_hl_find_mcl_idx(app_idx, p_data->api_sdp_query.bd_addr,
   1327                              &mcl_idx)) {
   1328       if (bta_hl_find_avail_mcl_idx(app_idx, &mcl_idx)) {
   1329         p_mcb = BTA_HL_GET_MCL_CB_PTR(app_idx, mcl_idx);
   1330         p_mcb->in_use = true;
   1331         p_mcb->bd_addr = p_data->api_sdp_query.bd_addr;
   1332         APPL_TRACE_DEBUG(
   1333             "bta_hl_api_sdp_query p_mcb->app_id %d app_idx %d mcl_idx %d",
   1334             p_mcb->app_id, app_idx, mcl_idx);
   1335         p_mcb->app_id = p_data->api_sdp_query.app_id;
   1336         p_mcb->sdp_oper = BTA_HL_SDP_OP_SDP_QUERY_NEW;
   1337       } else {
   1338         status = BTA_HL_STATUS_NO_RESOURCE;
   1339       }
   1340     } else {
   1341       p_mcb = BTA_HL_GET_MCL_CB_PTR(app_idx, mcl_idx);
   1342       p_mcb->app_id = p_data->api_sdp_query.app_id;
   1343       if (p_mcb->sdp_oper != BTA_HL_SDP_OP_NONE) {
   1344         status = BTA_HL_STATUS_SDP_NO_RESOURCE;
   1345       } else {
   1346         p_mcb->sdp_oper = BTA_HL_SDP_OP_SDP_QUERY_CURRENT;
   1347       }
   1348     }
   1349   } else {
   1350     status = BTA_HL_STATUS_INVALID_APP_HANDLE;
   1351   }
   1352 
   1353   if (status == BTA_HL_STATUS_OK) {
   1354     status = bta_hl_init_sdp(p_mcb->sdp_oper, app_idx, mcl_idx, 0xFF);
   1355     if ((status != BTA_HL_STATUS_OK) &&
   1356         (p_mcb->sdp_oper == BTA_HL_SDP_OP_SDP_QUERY_NEW)) {
   1357       memset(p_mcb, 0, sizeof(tBTA_HL_MCL_CB));
   1358     }
   1359   }
   1360 #if (BTA_HL_DEBUG == TRUE)
   1361   if (status != BTA_HL_STATUS_OK) {
   1362     APPL_TRACE_DEBUG("bta_hl_api_sdp_query status=%s",
   1363                      bta_hl_status_code(status));
   1364   }
   1365 #endif
   1366   switch (status) {
   1367     case BTA_HL_STATUS_NO_RESOURCE:
   1368     case BTA_HL_STATUS_FAIL:
   1369     case BTA_HL_STATUS_SDP_NO_RESOURCE:
   1370       p_acb = BTA_HL_GET_APP_CB_PTR(app_idx);
   1371       if (p_acb->p_cback) {
   1372         bta_hl_build_sdp_query_cfm(&evt_data, p_data->api_sdp_query.app_id,
   1373                                    p_data->api_sdp_query.app_handle,
   1374                                    p_data->api_sdp_query.bd_addr, NULL, status);
   1375         p_acb->p_cback(BTA_HL_SDP_QUERY_CFM_EVT, (tBTA_HL*)&evt_data);
   1376       } else {
   1377         APPL_TRACE_ERROR("bta_hl_api_sdp_query Null Callback");
   1378       }
   1379       break;
   1380     case BTA_HL_STATUS_OK:
   1381       break;
   1382     default:
   1383       APPL_TRACE_ERROR("Status code=%d", status);
   1384       break;
   1385   }
   1386 }
   1387 
   1388 /*******************************************************************************
   1389  *
   1390  * Function         bta_hl_sdp_query_results
   1391  *
   1392  * Description      Process the SDP query results
   1393  *
   1394  * Returns          void
   1395  *
   1396  ******************************************************************************/
   1397 static void bta_hl_sdp_query_results(UNUSED_ATTR tBTA_HL_CB* p_cb,
   1398                                      tBTA_HL_DATA* p_data) {
   1399   tBTA_HL evt_data;
   1400   tBTA_HL_STATUS status = BTA_HL_STATUS_OK;
   1401   uint8_t app_idx = p_data->cch_sdp.app_idx;
   1402   uint8_t mcl_idx = p_data->cch_sdp.mcl_idx;
   1403   tBTA_HL_APP_CB* p_acb = BTA_HL_GET_APP_CB_PTR(app_idx);
   1404   tBTA_HL_MCL_CB* p_mcb = BTA_HL_GET_MCL_CB_PTR(app_idx, mcl_idx);
   1405   tBTA_HL_SDP* p_sdp = NULL;
   1406   uint16_t event;
   1407   bool release_sdp_buf = false;
   1408 
   1409   event = p_data->hdr.event;
   1410 
   1411   if (event == BTA_HL_SDP_QUERY_OK_EVT) {
   1412     p_sdp = (tBTA_HL_SDP*)osi_malloc(sizeof(tBTA_HL_SDP));
   1413     memcpy(p_sdp, &p_mcb->sdp, sizeof(tBTA_HL_SDP));
   1414     release_sdp_buf = true;
   1415   } else {
   1416     status = BTA_HL_STATUS_SDP_FAIL;
   1417   }
   1418 
   1419 #if (BTA_HL_DEBUG == TRUE)
   1420   if (status != BTA_HL_STATUS_OK) {
   1421     APPL_TRACE_DEBUG("bta_hl_sdp_query_results status=%s",
   1422                      bta_hl_status_code(status));
   1423   }
   1424 #endif
   1425 
   1426   APPL_TRACE_DEBUG(
   1427       "bta_hl_sdp_query_results p_mcb->app_id %d app_idx %d mcl_idx %d",
   1428       p_mcb->app_id, app_idx, mcl_idx);
   1429   bta_hl_build_sdp_query_cfm(&evt_data, p_mcb->app_id, p_acb->app_handle,
   1430                              p_mcb->bd_addr, p_sdp, status);
   1431   p_acb->p_cback(BTA_HL_SDP_QUERY_CFM_EVT, (tBTA_HL*)&evt_data);
   1432 
   1433   if (release_sdp_buf) osi_free_and_reset((void**)&p_sdp);
   1434 
   1435   if (p_data->cch_sdp.release_mcl_cb) {
   1436     memset(p_mcb, 0, sizeof(tBTA_HL_MCL_CB));
   1437   } else {
   1438     if (p_mcb->close_pending)
   1439       bta_hl_check_cch_close(app_idx, mcl_idx, p_data, true);
   1440 
   1441     if (!p_mcb->ctrl_psm) {
   1442       /* Control channel acceptor: do not store the SDP records */
   1443       memset(&p_mcb->sdp, 0, sizeof(tBTA_HL_SDP));
   1444     }
   1445   }
   1446 }
   1447 
   1448 /*******************************************************************************
   1449  *
   1450  * Function         bta_hl_api_delete_mdl
   1451  *
   1452  * Description      Process the API DELETE MDL request
   1453  *
   1454  * Returns          void
   1455  *
   1456  ******************************************************************************/
   1457 static void bta_hl_api_delete_mdl(UNUSED_ATTR tBTA_HL_CB* p_cb,
   1458                                   tBTA_HL_DATA* p_data) {
   1459   tBTA_HL evt_data;
   1460   tBTA_HL_STATUS status = BTA_HL_STATUS_OK;
   1461   uint8_t app_idx, mcl_idx;
   1462   tBTA_HL_APP_CB* p_acb;
   1463   tBTA_HL_MCL_CB* p_mcb;
   1464 
   1465   if (bta_hl_find_mcl_idx_using_handle(p_data->api_delete_mdl.mcl_handle,
   1466                                        &app_idx, &mcl_idx)) {
   1467     if (bta_hl_is_mdl_value_valid(p_data->api_delete_mdl.mdl_id)) {
   1468       p_mcb = BTA_HL_GET_MCL_CB_PTR(app_idx, mcl_idx);
   1469       if (bta_hl_is_mdl_exsit_in_mcl(app_idx, p_mcb->bd_addr,
   1470                                      p_data->api_delete_mdl.mdl_id)) {
   1471         p_mcb->delete_mdl.mcl_handle = p_data->api_delete_mdl.mcl_handle;
   1472         p_mcb->delete_mdl.mdl_id = p_data->api_delete_mdl.mdl_id;
   1473         p_mcb->delete_mdl.delete_req_pending = true;
   1474 
   1475         if (MCA_Delete((tMCA_CL)p_mcb->mcl_handle,
   1476                        p_data->api_delete_mdl.mdl_id) != MCA_SUCCESS) {
   1477           status = BTA_HL_STATUS_FAIL;
   1478           memset(&p_mcb->delete_mdl, 0, sizeof(tBTA_HL_DELETE_MDL));
   1479         }
   1480       } else {
   1481         status = BTA_HL_STATUS_NO_MDL_ID_FOUND;
   1482       }
   1483     } else {
   1484       status = BTA_HL_STATUS_INVALID_MDL_ID;
   1485     }
   1486   } else {
   1487     status = BTA_HL_STATUS_INVALID_MCL_HANDLE;
   1488   }
   1489 
   1490 #if (BTA_HL_DEBUG == TRUE)
   1491   if (status != BTA_HL_STATUS_OK) {
   1492     APPL_TRACE_DEBUG("bta_hl_api_delete_mdl status=%s",
   1493                      bta_hl_status_code(status));
   1494   }
   1495 #endif
   1496   switch (status) {
   1497     case BTA_HL_STATUS_OK:
   1498       break;
   1499     case BTA_HL_STATUS_FAIL:
   1500     case BTA_HL_STATUS_NO_MDL_ID_FOUND:
   1501     case BTA_HL_STATUS_INVALID_MDL_ID:
   1502       p_acb = BTA_HL_GET_APP_CB_PTR(app_idx);
   1503       if (p_acb->p_cback) {
   1504         bta_hl_build_delete_mdl_cfm(&evt_data, p_acb->app_handle,
   1505                                     p_data->api_delete_mdl.mcl_handle,
   1506                                     p_data->api_delete_mdl.mdl_id, status);
   1507         p_acb->p_cback(BTA_HL_DELETE_MDL_CFM_EVT, (tBTA_HL*)&evt_data);
   1508       } else {
   1509         APPL_TRACE_ERROR("bta_hl_api_delete_mdl Null Callback");
   1510       }
   1511       break;
   1512     default:
   1513       APPL_TRACE_ERROR("status code =%d", status);
   1514       break;
   1515   }
   1516 }
   1517 
   1518 /*******************************************************************************
   1519  *
   1520  * Function         bta_hl_mca_delete_mdl_cfm
   1521  *
   1522  * Description      Process the DELETE MDL confirmation event
   1523  *
   1524  * Returns          void
   1525  *
   1526  ******************************************************************************/
   1527 static void bta_hl_mca_delete_mdl_cfm(UNUSED_ATTR tBTA_HL_CB* p_cb,
   1528                                       tBTA_HL_DATA* p_data) {
   1529   tBTA_HL evt_data;
   1530   tBTA_HL_STATUS status = BTA_HL_STATUS_OK;
   1531   uint8_t app_idx, mcl_idx;
   1532   tMCA_RSP_EVT* p_delete_cfm = &p_data->mca_evt.mca_data.delete_cfm;
   1533   tBTA_HL_MCL_CB* p_mcb;
   1534   bool send_cfm_evt = true;
   1535   tBTA_HL_APP_CB* p_acb;
   1536 
   1537   if (bta_hl_find_mcl_idx_using_handle(p_data->mca_evt.mcl_handle, &app_idx,
   1538                                        &mcl_idx)) {
   1539     p_mcb = BTA_HL_GET_MCL_CB_PTR(app_idx, mcl_idx);
   1540     if (p_mcb->delete_mdl.delete_req_pending) {
   1541       if (p_delete_cfm->rsp_code == MCA_RSP_SUCCESS) {
   1542         if (!bta_hl_delete_mdl_cfg(app_idx, p_mcb->bd_addr,
   1543                                    p_delete_cfm->mdl_id)) {
   1544           status = BTA_HL_STATUS_FAIL;
   1545         }
   1546       } else {
   1547         status = BTA_HL_STATUS_FAIL;
   1548       }
   1549 
   1550       memset(&p_mcb->delete_mdl, 0, sizeof(tBTA_HL_DELETE_MDL));
   1551     } else {
   1552       send_cfm_evt = false;
   1553     }
   1554   } else {
   1555     send_cfm_evt = false;
   1556   }
   1557 
   1558 #if (BTA_HL_DEBUG == TRUE)
   1559   if (status != BTA_HL_STATUS_OK) {
   1560     APPL_TRACE_DEBUG("bta_hl_api_delete_mdl status=%s",
   1561                      bta_hl_status_code(status));
   1562   }
   1563 #endif
   1564 
   1565   if (send_cfm_evt) {
   1566     p_acb = BTA_HL_GET_APP_CB_PTR(app_idx);
   1567     if (p_acb->p_cback) {
   1568       bta_hl_build_delete_mdl_cfm(&evt_data, p_acb->app_handle,
   1569                                   p_mcb->mcl_handle, p_delete_cfm->mdl_id,
   1570                                   status);
   1571 
   1572       p_acb->p_cback(BTA_HL_DELETE_MDL_CFM_EVT, (tBTA_HL*)&evt_data);
   1573     } else {
   1574       APPL_TRACE_ERROR("bta_hl_mca_delete_mdl_cfm Null Callback");
   1575     }
   1576   }
   1577 }
   1578 
   1579 /*******************************************************************************
   1580  *
   1581  * Function         bta_hl_mca_delete_mdl_ind
   1582  *
   1583  * Description      Process the DELETE MDL indication event
   1584  *
   1585  * Returns          void
   1586  *
   1587  ******************************************************************************/
   1588 static void bta_hl_mca_delete_mdl_ind(UNUSED_ATTR tBTA_HL_CB* p_cb,
   1589                                       tBTA_HL_DATA* p_data) {
   1590   tBTA_HL evt_data;
   1591   uint8_t app_idx, mcl_idx, mdl_idx;
   1592   tMCA_EVT_HDR* p_delete_ind = &p_data->mca_evt.mca_data.delete_ind;
   1593   tBTA_HL_MCL_CB* p_mcb;
   1594   tBTA_HL_MDL_CB* p_dcb;
   1595   bool send_ind_evt = false;
   1596   tBTA_HL_APP_CB* p_acb;
   1597 
   1598   if (bta_hl_find_mcl_idx_using_handle(p_data->mca_evt.mcl_handle, &app_idx,
   1599                                        &mcl_idx)) {
   1600     p_mcb = BTA_HL_GET_MCL_CB_PTR(app_idx, mcl_idx);
   1601 
   1602     if (bta_hl_find_mdl_idx(app_idx, mcl_idx, p_delete_ind->mdl_id, &mdl_idx)) {
   1603       p_dcb = BTA_HL_GET_MDL_CB_PTR(app_idx, mcl_idx, mdl_idx);
   1604       p_dcb->dch_oper = BTA_HL_DCH_OP_REMOTE_DELETE;
   1605     }
   1606     if (bta_hl_delete_mdl_cfg(app_idx, p_mcb->bd_addr, p_delete_ind->mdl_id)) {
   1607       send_ind_evt = true;
   1608     }
   1609   }
   1610 
   1611 #if (BTA_HL_DEBUG == TRUE)
   1612   if (!send_ind_evt) {
   1613     APPL_TRACE_DEBUG("bta_hl_mca_delete_mdl_ind is_send_ind_evt =%d",
   1614                      send_ind_evt);
   1615   }
   1616 #endif
   1617 
   1618   if (send_ind_evt) {
   1619     p_acb = BTA_HL_GET_APP_CB_PTR(app_idx);
   1620     if (p_acb->p_cback) {
   1621       evt_data.delete_mdl_ind.mcl_handle = p_mcb->mcl_handle;
   1622       evt_data.delete_mdl_ind.app_handle = p_acb->app_handle;
   1623       evt_data.delete_mdl_ind.mdl_id = p_delete_ind->mdl_id;
   1624       p_acb->p_cback(BTA_HL_DELETE_MDL_IND_EVT, (tBTA_HL*)&evt_data);
   1625     } else {
   1626       APPL_TRACE_ERROR("bta_hl_mca_delete_mdl_ind Null Callback");
   1627     }
   1628   }
   1629 }
   1630 
   1631 /*******************************************************************************
   1632  *
   1633  * Function         bta_hl_api_dch_abort
   1634  *
   1635  * Description      Process the API DCH abort request
   1636  *
   1637  * Returns          void
   1638  *
   1639  ******************************************************************************/
   1640 static void bta_hl_api_dch_abort(UNUSED_ATTR tBTA_HL_CB* p_cb,
   1641                                  tBTA_HL_DATA* p_data) {
   1642   tBTA_HL_STATUS status = BTA_HL_STATUS_OK;
   1643   uint8_t app_idx, mcl_idx, mdl_idx;
   1644   tBTA_HL_APP_CB* p_acb;
   1645   tBTA_HL_MCL_CB* p_mcb;
   1646   tBTA_HL_MDL_CB* p_dcb;
   1647   tBTA_HL evt_data;
   1648 
   1649   if (bta_hl_find_mcl_idx_using_handle(p_data->api_dch_abort.mcl_handle,
   1650                                        &app_idx, &mcl_idx)) {
   1651     if (!bta_hl_find_dch_setup_mdl_idx(app_idx, mcl_idx, &mdl_idx)) {
   1652       status = BTA_HL_STATUS_NO_MDL_ID_FOUND;
   1653     } else {
   1654       p_dcb = BTA_HL_GET_MDL_CB_PTR(app_idx, mcl_idx, mdl_idx);
   1655       if (p_dcb->abort_oper) {
   1656         /* abort already in progress*/
   1657         status = BTA_HL_STATUS_FAIL;
   1658       } else {
   1659         p_dcb->abort_oper = BTA_HL_ABORT_LOCAL_MASK;
   1660       }
   1661     }
   1662   } else {
   1663     status = BTA_HL_STATUS_INVALID_MCL_HANDLE;
   1664   }
   1665 
   1666 #if (BTA_HL_DEBUG == TRUE)
   1667   if (status != BTA_HL_STATUS_OK) {
   1668     APPL_TRACE_DEBUG("bta_hl_api_dch_abort status=%s",
   1669                      bta_hl_status_code(status));
   1670   }
   1671 #endif
   1672   switch (status) {
   1673     case BTA_HL_STATUS_OK:
   1674 
   1675       bta_hl_dch_sm_execute(app_idx, mcl_idx, mdl_idx, BTA_HL_DCH_ABORT_EVT,
   1676                             p_data);
   1677       break;
   1678     case BTA_HL_STATUS_NO_MDL_ID_FOUND:
   1679     case BTA_HL_STATUS_FAIL:
   1680 
   1681       p_acb = BTA_HL_GET_APP_CB_PTR(app_idx);
   1682       if (p_acb->p_cback) {
   1683         p_mcb = BTA_HL_GET_MCL_CB_PTR(app_idx, mcl_idx);
   1684         bta_hl_build_abort_cfm(&evt_data,
   1685 
   1686                                p_acb->app_handle, p_mcb->mcl_handle,
   1687                                BTA_HL_STATUS_FAIL);
   1688         p_acb->p_cback(BTA_HL_DCH_ABORT_CFM_EVT, (tBTA_HL*)&evt_data);
   1689       } else {
   1690         APPL_TRACE_ERROR("bta_hl_api_dch_abort Null Callback");
   1691       }
   1692       break;
   1693     default:
   1694       APPL_TRACE_ERROR("Status code=%d", status);
   1695       break;
   1696   }
   1697 }
   1698 
   1699 /*******************************************************************************
   1700  *
   1701  * Function         bta_hl_hdl_event
   1702  *
   1703  * Description      HL main event handling function.
   1704  *
   1705  * Returns          void
   1706  *
   1707  ******************************************************************************/
   1708 bool bta_hl_hdl_event(BT_HDR* p_msg) {
   1709   uint8_t app_idx, mcl_idx, mdl_idx;
   1710   bool success = true;
   1711 
   1712 #if (BTA_HL_DEBUG == TRUE)
   1713   APPL_TRACE_DEBUG("BTA HL Event Handler: Event [%s]",
   1714                    bta_hl_evt_code(p_msg->event));
   1715 #endif
   1716 
   1717   switch (p_msg->event) {
   1718     case BTA_HL_API_ENABLE_EVT:
   1719       bta_hl_api_enable(&bta_hl_cb, (tBTA_HL_DATA*)p_msg);
   1720       break;
   1721     case BTA_HL_API_DISABLE_EVT:
   1722       bta_hl_api_disable(&bta_hl_cb, (tBTA_HL_DATA*)p_msg);
   1723       break;
   1724     case BTA_HL_API_UPDATE_EVT:
   1725       bta_hl_api_update(&bta_hl_cb, (tBTA_HL_DATA*)p_msg);
   1726       break;
   1727     case BTA_HL_API_REGISTER_EVT:
   1728       bta_hl_api_register(&bta_hl_cb, (tBTA_HL_DATA*)p_msg);
   1729       break;
   1730     case BTA_HL_API_DEREGISTER_EVT:
   1731       bta_hl_api_deregister(&bta_hl_cb, (tBTA_HL_DATA*)p_msg);
   1732       break;
   1733     case BTA_HL_API_CCH_OPEN_EVT:
   1734       bta_hl_api_cch_open(&bta_hl_cb, (tBTA_HL_DATA*)p_msg);
   1735       break;
   1736     case BTA_HL_API_CCH_CLOSE_EVT:
   1737       bta_hl_api_cch_close(&bta_hl_cb, (tBTA_HL_DATA*)p_msg);
   1738       break;
   1739     case BTA_HL_API_DCH_OPEN_EVT:
   1740       bta_hl_api_dch_open(&bta_hl_cb, (tBTA_HL_DATA*)p_msg);
   1741       break;
   1742     case BTA_HL_API_DCH_CLOSE_EVT:
   1743       bta_hl_api_dch_close(&bta_hl_cb, (tBTA_HL_DATA*)p_msg);
   1744       break;
   1745     case BTA_HL_API_DELETE_MDL_EVT:
   1746       bta_hl_api_delete_mdl(&bta_hl_cb, (tBTA_HL_DATA*)p_msg);
   1747       break;
   1748     case BTA_HL_API_DCH_RECONNECT_EVT:
   1749       bta_hl_api_dch_reconnect(&bta_hl_cb, (tBTA_HL_DATA*)p_msg);
   1750       break;
   1751 
   1752     case BTA_HL_API_DCH_ECHO_TEST_EVT:
   1753       bta_hl_api_dch_echo_test(&bta_hl_cb, (tBTA_HL_DATA*)p_msg);
   1754       break;
   1755 
   1756     case BTA_HL_API_SDP_QUERY_EVT:
   1757       bta_hl_api_sdp_query(&bta_hl_cb, (tBTA_HL_DATA*)p_msg);
   1758       break;
   1759 
   1760     case BTA_HL_MCA_DELETE_CFM_EVT:
   1761       bta_hl_mca_delete_mdl_cfm(&bta_hl_cb, (tBTA_HL_DATA*)p_msg);
   1762       break;
   1763 
   1764     case BTA_HL_MCA_DELETE_IND_EVT:
   1765       bta_hl_mca_delete_mdl_ind(&bta_hl_cb, (tBTA_HL_DATA*)p_msg);
   1766       break;
   1767 
   1768     case BTA_HL_SDP_QUERY_OK_EVT:
   1769     case BTA_HL_SDP_QUERY_FAIL_EVT:
   1770       bta_hl_sdp_query_results(&bta_hl_cb, (tBTA_HL_DATA*)p_msg);
   1771       break;
   1772     case BTA_HL_API_DCH_ABORT_EVT:
   1773       bta_hl_api_dch_abort(&bta_hl_cb, (tBTA_HL_DATA*)p_msg);
   1774       break;
   1775 
   1776     default:
   1777       if (p_msg->event < BTA_HL_DCH_EVT_MIN) {
   1778         if (bta_hl_find_cch_cb_indexes((tBTA_HL_DATA*)p_msg, &app_idx,
   1779                                        &mcl_idx)) {
   1780           bta_hl_cch_sm_execute(app_idx, mcl_idx, p_msg->event,
   1781                                 (tBTA_HL_DATA*)p_msg);
   1782         } else {
   1783 #if (BTA_HL_DEBUG == TRUE)
   1784           APPL_TRACE_ERROR(
   1785               "unable to find control block indexes for CCH: [event=%s]",
   1786               bta_hl_evt_code(p_msg->event));
   1787 #else
   1788           APPL_TRACE_ERROR(
   1789               "unable to find control block indexes for CCH: [event=%d]",
   1790               p_msg->event);
   1791 #endif
   1792           success = false;
   1793         }
   1794       } else {
   1795         if (bta_hl_find_dch_cb_indexes((tBTA_HL_DATA*)p_msg, &app_idx, &mcl_idx,
   1796                                        &mdl_idx)) {
   1797           bta_hl_dch_sm_execute(app_idx, mcl_idx, mdl_idx, p_msg->event,
   1798                                 (tBTA_HL_DATA*)p_msg);
   1799         } else {
   1800 #if (BTA_HL_DEBUG == TRUE)
   1801           APPL_TRACE_ERROR(
   1802               "unable to find control block indexes for DCH : [event=%s]",
   1803               bta_hl_evt_code(p_msg->event));
   1804 #else
   1805           APPL_TRACE_ERROR(
   1806               "unable to find control block indexes for DCH: [event=%d]",
   1807               p_msg->event);
   1808 #endif
   1809           success = false;
   1810         }
   1811       }
   1812 
   1813       break;
   1814   }
   1815 
   1816   return (success);
   1817 }
   1818 
   1819 /*****************************************************************************
   1820  *  Debug Functions
   1821  ****************************************************************************/
   1822 #if (BTA_HL_DEBUG == TRUE)
   1823 
   1824 /*******************************************************************************
   1825  *
   1826  * Function         bta_hl_cch_state_code
   1827  *
   1828  * Description      Map CCH state code to the corresponding state string
   1829  *
   1830  * Returns          string pointer for the associated state name
   1831  *
   1832  ******************************************************************************/
   1833 static const char* bta_hl_cch_state_code(tBTA_HL_CCH_STATE state_code) {
   1834   switch (state_code) {
   1835     case BTA_HL_CCH_IDLE_ST:
   1836       return "BTA_HL_CCH_IDLE_ST";
   1837     case BTA_HL_CCH_OPENING_ST:
   1838       return "BTA_HL_CCH_OPENING_ST";
   1839     case BTA_HL_CCH_OPEN_ST:
   1840       return "BTA_HL_CCH_OPEN_ST";
   1841     case BTA_HL_CCH_CLOSING_ST:
   1842       return "BTA_HL_CCH_CLOSING_ST";
   1843     default:
   1844       return "Unknown CCH state code";
   1845   }
   1846 }
   1847 
   1848 /*******************************************************************************
   1849  *
   1850  * Function         bta_hl_dch_state_code
   1851  *
   1852  * Description      Map DCH state code to the corresponding state string
   1853  *
   1854  * Returns          string pointer for the associated state name
   1855  *
   1856  ******************************************************************************/
   1857 static const char* bta_hl_dch_state_code(tBTA_HL_DCH_STATE state_code) {
   1858   switch (state_code) {
   1859     case BTA_HL_DCH_IDLE_ST:
   1860       return "BTA_HL_DCH_IDLE_ST";
   1861     case BTA_HL_DCH_OPENING_ST:
   1862       return "BTA_HL_DCH_OPENING_ST";
   1863     case BTA_HL_DCH_OPEN_ST:
   1864       return "BTA_HL_DCH_OPEN_ST";
   1865     case BTA_HL_DCH_CLOSING_ST:
   1866       return "BTA_HL_DCH_CLOSING_ST";
   1867     default:
   1868       return "Unknown DCH state code";
   1869   }
   1870 }
   1871 #endif /* Debug Functions */
   1872 #endif /* HL_INCLUDED */
   1873