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      1 /******************************************************************************
      2  *
      3  *  Copyright (C) 2004-2012 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 is the public interface file for the advanced audio/video streaming
     22  *  (AV) subsystem of BTA, Broadcom's Bluetooth application layer for mobile
     23  *  phones.
     24  *
     25  ******************************************************************************/
     26 #ifndef BTA_AV_API_H
     27 #define BTA_AV_API_H
     28 
     29 #include "avrc_api.h"
     30 #include "avdt_api.h"
     31 #include "a2d_api.h"
     32 #include "bta_api.h"
     33 
     34 /*****************************************************************************
     35 **  Constants and data types
     36 *****************************************************************************/
     37 /* Set to TRUE if seperate authorization prompt desired for AVCTP besides A2DP authorization */
     38 /* Typically FALSE when AVRCP is used in conjunction with A2DP */
     39 #ifndef BTA_AV_WITH_AVCTP_AUTHORIZATION
     40 #define BTA_AV_WITH_AVCTP_AUTHORIZATION     FALSE
     41 #endif
     42 
     43 /* AV status values */
     44 #define BTA_AV_SUCCESS          0       /* successful operation */
     45 #define BTA_AV_FAIL             1       /* generic failure */
     46 #define BTA_AV_FAIL_SDP         2       /* service not found */
     47 #define BTA_AV_FAIL_STREAM      3       /* stream connection failed */
     48 #define BTA_AV_FAIL_RESOURCES   4       /* no resources */
     49 #define BTA_AV_FAIL_ROLE        5       /* failed due to role management related issues */
     50 #define BTA_AV_FAIL_GET_CAP     6       /* get capability failed due to no SEP availale on the peer  */
     51 
     52 typedef UINT8 tBTA_AV_STATUS;
     53 
     54 /* AV features masks */
     55 #define BTA_AV_FEAT_RCTG        0x0001  /* remote control target */
     56 #define BTA_AV_FEAT_RCCT        0x0002  /* remote control controller */
     57 #define BTA_AV_FEAT_PROTECT     0x0004  /* streaming media contect protection */
     58 #define BTA_AV_FEAT_VENDOR      0x0008  /* remote control vendor dependent commands */
     59 #define BTA_AV_FEAT_REPORT      0x0020  /* use reporting service for VDP */
     60 #define BTA_AV_FEAT_METADATA    0x0040  /* remote control Metadata Transfer command/response */
     61 #define BTA_AV_FEAT_MULTI_AV    0x0080  /* use multi-av, if controller supports it */
     62 #define BTA_AV_FEAT_BROWSE      0x0010  /* use browsing channel */
     63 #define BTA_AV_FEAT_MASTER      0x0100  /* stream only as master role */
     64 #define BTA_AV_FEAT_ADV_CTRL    0x0200  /* remote control Advanced Control command/response */
     65 #define BTA_AV_FEAT_DELAY_RPT   0x0400  /* allow delay reporting */
     66 #define BTA_AV_FEAT_ACP_START   0x0800  /* start stream when 2nd SNK was accepted   */
     67 
     68 /* Internal features */
     69 #define BTA_AV_FEAT_NO_SCO_SSPD 0x8000  /* Do not suspend av streaming as to AG events(SCO or Call) */
     70 
     71 typedef UINT16 tBTA_AV_FEAT;
     72 
     73 /* AV channel values */
     74 #define BTA_AV_CHNL_MSK             0xC0
     75 #define BTA_AV_CHNL_AUDIO           0x40  /* audio channel */
     76 #define BTA_AV_CHNL_VIDEO           0x80  /* video channel */
     77 typedef UINT8 tBTA_AV_CHNL;
     78 
     79 
     80 #define BTA_AV_HNDL_MSK             0x3F
     81 typedef UINT8 tBTA_AV_HNDL;
     82 /* handle index to mask */
     83 #define BTA_AV_HNDL_TO_MSK(h)       ((UINT8)(1 << (h)))
     84 
     85 /* tBTA_AV_HNDL to mask */
     86 #define BTA_AV_HNDL_TYPE_TO_MSK(h)  ((UINT8)(1 << (h&BTA_AV_HNDL_MSK)))
     87 
     88 /* offset of codec type in codec info byte array */
     89 #define BTA_AV_CODEC_TYPE_IDX       AVDT_CODEC_TYPE_INDEX   /* 2 */
     90 
     91 
     92 
     93 /* maximum number of streams created: 1 for audio, 1 for video */
     94 #ifndef BTA_AV_NUM_STRS
     95 #define BTA_AV_NUM_STRS         2
     96 #endif
     97 
     98 #ifndef BTA_AV_MAX_SEPS
     99 #define BTA_AV_MAX_SEPS         2
    100 #endif
    101 
    102 #ifndef BTA_AV_MAX_A2DP_MTU
    103  /*#define BTA_AV_MAX_A2DP_MTU     668 //224 (DM5) * 3 - 4(L2CAP header) */
    104 #define BTA_AV_MAX_A2DP_MTU     1008
    105 #endif
    106 
    107 #ifndef BTA_AV_MAX_VDP_MTU
    108 #define BTA_AV_MAX_VDP_MTU      1008
    109 #endif
    110 
    111 
    112 /* codec type */
    113 #define BTA_AV_CODEC_SBC        A2D_MEDIA_CT_SBC        /* SBC media codec type */
    114 #define BTA_AV_CODEC_M12        A2D_MEDIA_CT_M12        /* MPEG-1, 2 Audio media codec type */
    115 #define BTA_AV_CODEC_M24        A2D_MEDIA_CT_M24        /* MPEG-2, 4 AAC media codec type */
    116 #define BTA_AV_CODEC_ATRAC      A2D_MEDIA_CT_ATRAC      /* ATRAC family media codec type */
    117 #define BTA_AV_CODEC_H263_P0    VDP_MEDIA_CT_H263_P0    /* H.263 baseline (profile 0) */
    118 #define BTA_AV_CODEC_MPEG4      VDP_MEDIA_CT_MPEG4      /* MPEG-4 Visual Simple Profile */
    119 #define BTA_AV_CODEC_H263_P3    VDP_MEDIA_CT_H263_P3    /* H.263 profile 3 */
    120 #define BTA_AV_CODEC_H263_P8    VDP_MEDIA_CT_H263_P8    /* H.263 profile 8 */
    121 #define BTA_AV_CODEC_VEND       VDP_MEDIA_CT_VEND       /* Non-VDP */
    122 
    123 typedef UINT8 tBTA_AV_CODEC;
    124 
    125 /* Company ID in BT assigned numbers */
    126 #define BTA_AV_BT_VENDOR_ID     VDP_BT_VENDOR_ID        /* Broadcom Corporation */
    127 
    128 /* vendor specific codec ID */
    129 #define BTA_AV_CODEC_ID_H264    VDP_CODEC_ID_H264       /* Non-VDP codec ID - H.264 */
    130 #define BTA_AV_CODEC_ID_IMG     VDP_CODEC_ID_IMG        /* Non-VDP codec ID - images/slideshow */
    131 
    132 /* operation id list for BTA_AvRemoteCmd */
    133 #define BTA_AV_RC_SELECT        AVRC_ID_SELECT      /* select */
    134 #define BTA_AV_RC_UP            AVRC_ID_UP          /* up */
    135 #define BTA_AV_RC_DOWN          AVRC_ID_DOWN        /* down */
    136 #define BTA_AV_RC_LEFT          AVRC_ID_LEFT        /* left */
    137 #define BTA_AV_RC_RIGHT         AVRC_ID_RIGHT       /* right */
    138 #define BTA_AV_RC_RIGHT_UP      AVRC_ID_RIGHT_UP    /* right-up */
    139 #define BTA_AV_RC_RIGHT_DOWN    AVRC_ID_RIGHT_DOWN  /* right-down */
    140 #define BTA_AV_RC_LEFT_UP       AVRC_ID_LEFT_UP     /* left-up */
    141 #define BTA_AV_RC_LEFT_DOWN     AVRC_ID_LEFT_DOWN   /* left-down */
    142 #define BTA_AV_RC_ROOT_MENU     AVRC_ID_ROOT_MENU   /* root menu */
    143 #define BTA_AV_RC_SETUP_MENU    AVRC_ID_SETUP_MENU  /* setup menu */
    144 #define BTA_AV_RC_CONT_MENU     AVRC_ID_CONT_MENU   /* contents menu */
    145 #define BTA_AV_RC_FAV_MENU      AVRC_ID_FAV_MENU    /* favorite menu */
    146 #define BTA_AV_RC_EXIT          AVRC_ID_EXIT        /* exit */
    147 #define BTA_AV_RC_0             AVRC_ID_0           /* 0 */
    148 #define BTA_AV_RC_1             AVRC_ID_1           /* 1 */
    149 #define BTA_AV_RC_2             AVRC_ID_2           /* 2 */
    150 #define BTA_AV_RC_3             AVRC_ID_3           /* 3 */
    151 #define BTA_AV_RC_4             AVRC_ID_4           /* 4 */
    152 #define BTA_AV_RC_5             AVRC_ID_5           /* 5 */
    153 #define BTA_AV_RC_6             AVRC_ID_6           /* 6 */
    154 #define BTA_AV_RC_7             AVRC_ID_7           /* 7 */
    155 #define BTA_AV_RC_8             AVRC_ID_8           /* 8 */
    156 #define BTA_AV_RC_9             AVRC_ID_9           /* 9 */
    157 #define BTA_AV_RC_DOT           AVRC_ID_DOT         /* dot */
    158 #define BTA_AV_RC_ENTER         AVRC_ID_ENTER       /* enter */
    159 #define BTA_AV_RC_CLEAR         AVRC_ID_CLEAR       /* clear */
    160 #define BTA_AV_RC_CHAN_UP       AVRC_ID_CHAN_UP     /* channel up */
    161 #define BTA_AV_RC_CHAN_DOWN     AVRC_ID_CHAN_DOWN   /* channel down */
    162 #define BTA_AV_RC_PREV_CHAN     AVRC_ID_PREV_CHAN   /* previous channel */
    163 #define BTA_AV_RC_SOUND_SEL     AVRC_ID_SOUND_SEL   /* sound select */
    164 #define BTA_AV_RC_INPUT_SEL     AVRC_ID_INPUT_SEL   /* input select */
    165 #define BTA_AV_RC_DISP_INFO     AVRC_ID_DISP_INFO   /* display information */
    166 #define BTA_AV_RC_HELP          AVRC_ID_HELP        /* help */
    167 #define BTA_AV_RC_PAGE_UP       AVRC_ID_PAGE_UP     /* page up */
    168 #define BTA_AV_RC_PAGE_DOWN     AVRC_ID_PAGE_DOWN   /* page down */
    169 #define BTA_AV_RC_POWER         AVRC_ID_POWER       /* power */
    170 #define BTA_AV_RC_VOL_UP        AVRC_ID_VOL_UP      /* volume up */
    171 #define BTA_AV_RC_VOL_DOWN      AVRC_ID_VOL_DOWN    /* volume down */
    172 #define BTA_AV_RC_MUTE          AVRC_ID_MUTE        /* mute */
    173 #define BTA_AV_RC_PLAY          AVRC_ID_PLAY        /* play */
    174 #define BTA_AV_RC_STOP          AVRC_ID_STOP        /* stop */
    175 #define BTA_AV_RC_PAUSE         AVRC_ID_PAUSE       /* pause */
    176 #define BTA_AV_RC_RECORD        AVRC_ID_RECORD      /* record */
    177 #define BTA_AV_RC_REWIND        AVRC_ID_REWIND      /* rewind */
    178 #define BTA_AV_RC_FAST_FOR      AVRC_ID_FAST_FOR    /* fast forward */
    179 #define BTA_AV_RC_EJECT         AVRC_ID_EJECT       /* eject */
    180 #define BTA_AV_RC_FORWARD       AVRC_ID_FORWARD     /* forward */
    181 #define BTA_AV_RC_BACKWARD      AVRC_ID_BACKWARD    /* backward */
    182 #define BTA_AV_RC_ANGLE         AVRC_ID_ANGLE       /* angle */
    183 #define BTA_AV_RC_SUBPICT       AVRC_ID_SUBPICT     /* subpicture */
    184 #define BTA_AV_RC_F1            AVRC_ID_F1          /* F1 */
    185 #define BTA_AV_RC_F2            AVRC_ID_F2          /* F2 */
    186 #define BTA_AV_RC_F3            AVRC_ID_F3          /* F3 */
    187 #define BTA_AV_RC_F4            AVRC_ID_F4          /* F4 */
    188 #define BTA_AV_RC_F5            AVRC_ID_F5          /* F5 */
    189 #define BTA_AV_VENDOR           AVRC_ID_VENDOR      /* vendor unique */
    190 
    191 typedef UINT8 tBTA_AV_RC;
    192 
    193 /* state flag for pass through command */
    194 #define BTA_AV_STATE_PRESS      AVRC_STATE_PRESS    /* key pressed */
    195 #define BTA_AV_STATE_RELEASE    AVRC_STATE_RELEASE  /* key released */
    196 
    197 typedef UINT8 tBTA_AV_STATE;
    198 
    199 /* command codes for BTA_AvVendorCmd */
    200 #define BTA_AV_CMD_CTRL         AVRC_CMD_CTRL
    201 #define BTA_AV_CMD_STATUS       AVRC_CMD_STATUS
    202 #define BTA_AV_CMD_SPEC_INQ     AVRC_CMD_SPEC_INQ
    203 #define BTA_AV_CMD_NOTIF        AVRC_CMD_NOTIF
    204 #define BTA_AV_CMD_GEN_INQ      AVRC_CMD_GEN_INQ
    205 
    206 typedef UINT8 tBTA_AV_CMD;
    207 
    208 /* response codes for BTA_AvVendorRsp */
    209 #define BTA_AV_RSP_NOT_IMPL     AVRC_RSP_NOT_IMPL
    210 #define BTA_AV_RSP_ACCEPT       AVRC_RSP_ACCEPT
    211 #define BTA_AV_RSP_REJ          AVRC_RSP_REJ
    212 #define BTA_AV_RSP_IN_TRANS     AVRC_RSP_IN_TRANS
    213 #define BTA_AV_RSP_IMPL_STBL    AVRC_RSP_IMPL_STBL
    214 #define BTA_AV_RSP_CHANGED      AVRC_RSP_CHANGED
    215 #define BTA_AV_RSP_INTERIM      AVRC_RSP_INTERIM
    216 
    217 typedef UINT8 tBTA_AV_CODE;
    218 
    219 /* error codes for BTA_AvProtectRsp */
    220 #define BTA_AV_ERR_NONE             A2D_SUCCESS         /* Success, no error */
    221 #define BTA_AV_ERR_BAD_STATE        AVDT_ERR_BAD_STATE  /* Message cannot be processed in this state */
    222 #define BTA_AV_ERR_RESOURCE         AVDT_ERR_RESOURCE   /* Insufficient resources */
    223 #define BTA_AV_ERR_BAD_CP_TYPE      A2D_BAD_CP_TYPE     /* The requested Content Protection Type is not supported */
    224 #define BTA_AV_ERR_BAD_CP_FORMAT    A2D_BAD_CP_FORMAT   /* The format of Content Protection Data is not correct */
    225 
    226 typedef UINT8 tBTA_AV_ERR;
    227 
    228 
    229 /* AV callback events */
    230 #define BTA_AV_ENABLE_EVT       0       /* AV enabled */
    231 #define BTA_AV_REGISTER_EVT     1       /* registered to AVDT */
    232 #define BTA_AV_OPEN_EVT         2       /* connection opened */
    233 #define BTA_AV_CLOSE_EVT        3       /* connection closed */
    234 #define BTA_AV_START_EVT        4       /* stream data transfer started */
    235 #define BTA_AV_STOP_EVT         5       /* stream data transfer stopped */
    236 #define BTA_AV_PROTECT_REQ_EVT  6       /* content protection request */
    237 #define BTA_AV_PROTECT_RSP_EVT  7       /* content protection response */
    238 #define BTA_AV_RC_OPEN_EVT      8       /* remote control channel open */
    239 #define BTA_AV_RC_CLOSE_EVT     9       /* remote control channel closed */
    240 #define BTA_AV_REMOTE_CMD_EVT   10      /* remote control command */
    241 #define BTA_AV_REMOTE_RSP_EVT   11      /* remote control response */
    242 #define BTA_AV_VENDOR_CMD_EVT   12      /* vendor dependent remote control command */
    243 #define BTA_AV_VENDOR_RSP_EVT   13      /* vendor dependent remote control response */
    244 #define BTA_AV_RECONFIG_EVT     14      /* reconfigure response */
    245 #define BTA_AV_SUSPEND_EVT      15      /* suspend response */
    246 #define BTA_AV_PENDING_EVT      16      /* incoming connection pending:
    247                                          * signal channel is open and stream is not open
    248                                          * after BTA_AV_SIG_TIME_VAL ms */
    249 #define BTA_AV_META_MSG_EVT     17      /* metadata messages */
    250 #define BTA_AV_REJECT_EVT       18      /* incoming connection rejected */
    251 #define BTA_AV_RC_FEAT_EVT      19      /* remote control channel peer supported features update */
    252 /* Max BTA event */
    253 #define BTA_AV_MAX_EVT          20
    254 
    255 typedef UINT8 tBTA_AV_EVT;
    256 
    257 /* Event associated with BTA_AV_ENABLE_EVT */
    258 typedef struct
    259 {
    260     tBTA_AV_FEAT    features;
    261 } tBTA_AV_ENABLE;
    262 
    263 /* Event associated with BTA_AV_REGISTER_EVT */
    264 typedef struct
    265 {
    266     tBTA_AV_CHNL    chnl;       /* audio/video */
    267     tBTA_AV_HNDL    hndl;       /* Handle associated with the stream. */
    268     UINT8           app_id;     /* ID associated with call to BTA_AvRegister() */
    269     tBTA_AV_STATUS  status;
    270 } tBTA_AV_REGISTER;
    271 
    272 /* data associated with BTA_AV_OPEN_EVT */
    273 #define BTA_AV_EDR_2MBPS        0x01
    274 #define BTA_AV_EDR_3MBPS        0x02
    275 typedef UINT8 tBTA_AV_EDR;
    276 
    277 typedef struct
    278 {
    279     tBTA_AV_CHNL    chnl;
    280     tBTA_AV_HNDL    hndl;
    281     BD_ADDR         bd_addr;
    282     tBTA_AV_STATUS  status;
    283     BOOLEAN         starting;
    284     tBTA_AV_EDR     edr;        /* 0, if peer device does not support EDR */
    285 } tBTA_AV_OPEN;
    286 
    287 /* data associated with BTA_AV_CLOSE_EVT */
    288 typedef struct
    289 {
    290     tBTA_AV_CHNL    chnl;
    291     tBTA_AV_HNDL    hndl;
    292 } tBTA_AV_CLOSE;
    293 
    294 /* data associated with BTA_AV_START_EVT */
    295 typedef struct
    296 {
    297     tBTA_AV_CHNL    chnl;
    298     tBTA_AV_HNDL    hndl;
    299     tBTA_AV_STATUS  status;
    300     BOOLEAN         initiator; /* TRUE, if local device initiates the START */
    301     BOOLEAN         suspending;
    302 } tBTA_AV_START;
    303 
    304 /* data associated with BTA_AV_SUSPEND_EVT */
    305 typedef struct
    306 {
    307     tBTA_AV_CHNL    chnl;
    308     tBTA_AV_HNDL    hndl;
    309     BOOLEAN         initiator; /* TRUE, if local device initiates the SUSPEND */
    310     tBTA_AV_STATUS  status;
    311 } tBTA_AV_SUSPEND;
    312 
    313 /* data associated with BTA_AV_RECONFIG_EVT */
    314 typedef struct
    315 {
    316     tBTA_AV_CHNL    chnl;
    317     tBTA_AV_HNDL    hndl;
    318     tBTA_AV_STATUS  status;
    319 } tBTA_AV_RECONFIG;
    320 
    321 /* data associated with BTA_AV_PROTECT_REQ_EVT */
    322 typedef struct
    323 {
    324     tBTA_AV_CHNL    chnl;
    325     tBTA_AV_HNDL    hndl;
    326     UINT8           *p_data;
    327     UINT16          len;
    328 } tBTA_AV_PROTECT_REQ;
    329 
    330 /* data associated with BTA_AV_PROTECT_RSP_EVT */
    331 typedef struct
    332 {
    333     tBTA_AV_CHNL    chnl;
    334     tBTA_AV_HNDL    hndl;
    335     UINT8           *p_data;
    336     UINT16          len;
    337     tBTA_AV_ERR     err_code;
    338 } tBTA_AV_PROTECT_RSP;
    339 
    340 /* data associated with BTA_AV_RC_OPEN_EVT */
    341 typedef struct
    342 {
    343     UINT8           rc_handle;
    344     tBTA_AV_FEAT    peer_features;
    345     BD_ADDR         peer_addr;
    346     tBTA_AV_STATUS  status;
    347 } tBTA_AV_RC_OPEN;
    348 
    349 /* data associated with BTA_AV_RC_CLOSE_EVT */
    350 typedef struct
    351 {
    352     UINT8           rc_handle;
    353     BD_ADDR         peer_addr;
    354 } tBTA_AV_RC_CLOSE;
    355 
    356 /* data associated with BTA_AV_RC_FEAT_EVT */
    357 typedef struct
    358 {
    359     UINT8           rc_handle;
    360     tBTA_AV_FEAT    peer_features;
    361 } tBTA_AV_RC_FEAT;
    362 
    363 /* data associated with BTA_AV_REMOTE_CMD_EVT */
    364 typedef struct
    365 {
    366     UINT8           rc_handle;
    367     tBTA_AV_RC      rc_id;
    368     tBTA_AV_STATE   key_state;
    369     UINT8           len;
    370     UINT8           *p_data;
    371     tAVRC_HDR       hdr;    /* Message header. */
    372     UINT8           label;
    373 } tBTA_AV_REMOTE_CMD;
    374 
    375 /* data associated with BTA_AV_REMOTE_RSP_EVT */
    376 typedef struct
    377 {
    378     UINT8           rc_handle;
    379     tBTA_AV_RC      rc_id;
    380     tBTA_AV_STATE   key_state;
    381     UINT8           len;
    382     UINT8           *p_data;
    383     tBTA_AV_CODE    rsp_code;
    384     UINT8           label;
    385 } tBTA_AV_REMOTE_RSP;
    386 
    387 /* data associated with BTA_AV_VENDOR_CMD_EVT, BTA_AV_VENDOR_RSP_EVT */
    388 typedef struct
    389 {
    390     UINT8           rc_handle;
    391     UINT16          len;            /* Max vendor dependent message is 512 */
    392     UINT8           label;
    393     tBTA_AV_CODE    code;
    394     UINT32          company_id;
    395     UINT8           *p_data;
    396 } tBTA_AV_VENDOR;
    397 
    398 /* data associated with BTA_AV_META_MSG_EVT */
    399 typedef struct
    400 {
    401     UINT8           rc_handle;
    402     UINT16          len;
    403     UINT8           label;
    404     tBTA_AV_CODE    code;
    405     UINT32          company_id;
    406     UINT8           *p_data;
    407     tAVRC_MSG       *p_msg;
    408 } tBTA_AV_META_MSG;
    409 
    410 /* data associated with BTA_AV_PENDING_EVT */
    411 typedef struct
    412 {
    413     BD_ADDR         bd_addr;
    414 } tBTA_AV_PEND;
    415 
    416 /* data associated with BTA_AV_REJECT_EVT */
    417 typedef struct
    418 {
    419     BD_ADDR         bd_addr;
    420     tBTA_AV_HNDL    hndl;       /* Handle associated with the stream that rejected the connection. */
    421 } tBTA_AV_REJECT;
    422 
    423 
    424 /* union of data associated with AV callback */
    425 typedef union
    426 {
    427     tBTA_AV_CHNL        chnl;
    428     tBTA_AV_ENABLE      enable;
    429     tBTA_AV_REGISTER    registr;
    430     tBTA_AV_OPEN        open;
    431     tBTA_AV_CLOSE       close;
    432     tBTA_AV_START       start;
    433     tBTA_AV_PROTECT_REQ protect_req;
    434     tBTA_AV_PROTECT_RSP protect_rsp;
    435     tBTA_AV_RC_OPEN     rc_open;
    436     tBTA_AV_RC_CLOSE    rc_close;
    437     tBTA_AV_REMOTE_CMD  remote_cmd;
    438     tBTA_AV_REMOTE_RSP  remote_rsp;
    439     tBTA_AV_VENDOR      vendor_cmd;
    440     tBTA_AV_VENDOR      vendor_rsp;
    441     tBTA_AV_RECONFIG    reconfig;
    442     tBTA_AV_SUSPEND     suspend;
    443     tBTA_AV_PEND        pend;
    444     tBTA_AV_META_MSG    meta_msg;
    445     tBTA_AV_REJECT      reject;
    446     tBTA_AV_RC_FEAT     rc_feat;
    447 } tBTA_AV;
    448 
    449 
    450 #define BTA_AVC_PACKET_LEN                  AVRC_PACKET_LEN
    451 #define BTA_VENDOR_DATA_OFFSET              6
    452 #define BTA_VENDOR_HEADER_LEN               4
    453 #define BTA_MAX_VENDOR_DEPENDENT_DATA_LEN   (BTA_AVC_PACKET_LEN-BTA_VENDOR_DATA_OFFSET-BTA_VENDOR_HEADER_LEN)
    454 #define BTA_GROUP_NAVI_MSG_OP_DATA_LEN      5
    455 
    456 #define BTA_ERROR_INVALID_CMD           AVRC_STS_BAD_CMD
    457 #define BTA_ERROR_INVALID_PARAM         AVRC_STS_BAD_PARAM
    458 #define BTA_ERROR_BAD_CONTENTS          AVRC_STS_NOT_FOUND
    459 #define BTA_ERROR_INTERNAL              AVRC_STS_INTERNAL_ERR
    460 
    461 #define BTA_AV_META_SINGLE_PACKET       AVRC_PKT_SINGLE
    462 
    463 #define BTA_AV_CO_METADATA              AVRC_CO_METADATA
    464 
    465 /* AV callback */
    466 typedef void (tBTA_AV_CBACK)(tBTA_AV_EVT event, tBTA_AV *p_data);
    467 
    468 /* type for stream state machine action functions */
    469 typedef void (*tBTA_AV_ACT)(void *p_cb, void *p_data);
    470 
    471 /* type for registering VDP */
    472 typedef void (tBTA_AV_REG) (tAVDT_CS *p_cs, char *p_service_name, void *p_data);
    473 
    474 /* AV configuration structure */
    475 typedef struct
    476 {
    477     UINT32  company_id;         /* AVRCP Company ID */
    478     UINT16  avrc_mtu;           /* AVRCP MTU at L2CAP for control channel */
    479     UINT16  avrc_br_mtu;        /* AVRCP MTU at L2CAP for browsing channel */
    480     UINT16  avrc_ct_cat;        /* AVRCP controller categories */
    481     UINT16  avrc_tg_cat;        /* AVRCP target categories */
    482     UINT16  sig_mtu;            /* AVDTP signaling channel MTU at L2CAP */
    483     UINT16  audio_mtu;          /* AVDTP audio transport channel MTU at L2CAP */
    484     const UINT16 *p_audio_flush_to;/* AVDTP audio transport channel flush timeout */
    485     UINT16  audio_mqs;          /* AVDTP audio channel max data queue size */
    486     UINT16  video_mtu;          /* AVDTP video transport channel MTU at L2CAP */
    487     UINT16  video_flush_to;     /* AVDTP video transport channel flush timeout */
    488     BOOLEAN avrc_group;         /* TRUE, to accept AVRC 1.3 group nevigation command */
    489     UINT8   num_co_ids;         /* company id count in p_meta_co_ids */
    490     UINT8   num_evt_ids;        /* event id count in p_meta_evt_ids */
    491     tBTA_AV_CODE  rc_pass_rsp;  /* the default response code for pass through commands */
    492     const UINT32 *p_meta_co_ids;/* the metadata Get Capabilities response for company id */
    493     const UINT8 *p_meta_evt_ids;/* the the metadata Get Capabilities response for event id */
    494     const tBTA_AV_ACT *p_act_tbl;/* the action function table for VDP stream */
    495     tBTA_AV_REG       *p_reg;   /* action function to register VDP */
    496     char              avrc_controller_name[BTA_SERVICE_NAME_LEN]; /* Default AVRCP controller name */
    497     char              avrc_target_name[BTA_SERVICE_NAME_LEN];     /* Default AVRCP target name*/
    498 } tBTA_AV_CFG;
    499 
    500 #ifdef __cplusplus
    501 extern "C"
    502 {
    503 #endif
    504 
    505 /*****************************************************************************
    506 **  External Function Declarations
    507 *****************************************************************************/
    508 
    509 /*******************************************************************************
    510 **
    511 ** Function         BTA_AvEnable
    512 **
    513 ** Description      Enable the advanced audio/video service. When the enable
    514 **                  operation is complete the callback function will be
    515 **                  called with a BTA_AV_ENABLE_EVT. This function must
    516 **                  be called before other function in the AV API are
    517 **                  called.
    518 **
    519 ** Returns          void
    520 **
    521 *******************************************************************************/
    522 BTA_API void BTA_AvEnable(tBTA_SEC sec_mask, tBTA_AV_FEAT features,
    523                           tBTA_AV_CBACK *p_cback);
    524 
    525 /*******************************************************************************
    526 **
    527 ** Function         BTA_AvDisable
    528 **
    529 ** Description      Disable the advanced audio/video service.
    530 **
    531 **
    532 ** Returns          void
    533 **
    534 *******************************************************************************/
    535 BTA_API void BTA_AvDisable(void);
    536 
    537 /*******************************************************************************
    538 **
    539 ** Function         BTA_AvRegister
    540 **
    541 ** Description      Register the audio or video service to stack. When the
    542 **                  operation is complete the callback function will be
    543 **                  called with a BTA_AV_REGISTER_EVT. This function must
    544 **                  be called before AVDT stream is open.
    545 **
    546 **
    547 ** Returns          void
    548 **
    549 *******************************************************************************/
    550 BTA_API void BTA_AvRegister(tBTA_AV_CHNL chnl, const char *p_service_name,
    551                             UINT8 app_id);
    552 
    553 /*******************************************************************************
    554 **
    555 ** Function         BTA_AvDeregister
    556 **
    557 ** Description      Deregister the audio or video service
    558 **
    559 ** Returns          void
    560 **
    561 *******************************************************************************/
    562 BTA_API void BTA_AvDeregister(tBTA_AV_HNDL hndl);
    563 
    564 /*******************************************************************************
    565 **
    566 ** Function         BTA_AvOpen
    567 **
    568 ** Description      Opens an advanced audio/video connection to a peer device.
    569 **                  When connection is open callback function is called
    570 **                  with a BTA_AV_OPEN_EVT.
    571 **
    572 ** Returns          void
    573 **
    574 *******************************************************************************/
    575 BTA_API void BTA_AvOpen(BD_ADDR bd_addr, tBTA_AV_HNDL handle,
    576                         BOOLEAN use_rc, tBTA_SEC sec_mask);
    577 
    578 /*******************************************************************************
    579 **
    580 ** Function         BTA_AvClose
    581 **
    582 ** Description      Close the current streams.
    583 **
    584 ** Returns          void
    585 **
    586 *******************************************************************************/
    587 BTA_API void BTA_AvClose(tBTA_AV_HNDL handle);
    588 
    589 /*******************************************************************************
    590 **
    591 ** Function         BTA_AvDisconnect
    592 **
    593 ** Description      Close the connection to the address.
    594 **
    595 ** Returns          void
    596 **
    597 *******************************************************************************/
    598 BTA_API void BTA_AvDisconnect(BD_ADDR bd_addr);
    599 
    600 /*******************************************************************************
    601 **
    602 ** Function         BTA_AvStart
    603 **
    604 ** Description      Start audio/video stream data transfer.
    605 **
    606 ** Returns          void
    607 **
    608 *******************************************************************************/
    609 BTA_API void BTA_AvStart(void);
    610 
    611 /*******************************************************************************
    612 **
    613 ** Function         BTA_AvStop
    614 **
    615 ** Description      Stop audio/video stream data transfer.
    616 **                  If suspend is TRUE, this function sends AVDT suspend signal
    617 **                  to the connected peer(s).
    618 **
    619 ** Returns          void
    620 **
    621 *******************************************************************************/
    622 BTA_API void BTA_AvStop(BOOLEAN suspend);
    623 
    624 /*******************************************************************************
    625 **
    626 ** Function         BTA_AvReconfig
    627 **
    628 ** Description      Reconfigure the audio/video stream.
    629 **                  If suspend is TRUE, this function tries the suspend/reconfigure
    630 **                  procedure first.
    631 **                  If suspend is FALSE or when suspend/reconfigure fails,
    632 **                  this function closes and re-opens the AVDT connection.
    633 **
    634 ** Returns          void
    635 **
    636 *******************************************************************************/
    637 BTA_API void BTA_AvReconfig(tBTA_AV_HNDL hndl, BOOLEAN suspend, UINT8 sep_info_idx,
    638                             UINT8 *p_codec_info, UINT8 num_protect, UINT8 *p_protect_info);
    639 
    640 /*******************************************************************************
    641 **
    642 ** Function         BTA_AvProtectReq
    643 **
    644 ** Description      Send a content protection request.  This function can only
    645 **                  be used if AV is enabled with feature BTA_AV_FEAT_PROTECT.
    646 **
    647 ** Returns          void
    648 **
    649 *******************************************************************************/
    650 BTA_API void BTA_AvProtectReq(tBTA_AV_HNDL hndl, UINT8 *p_data, UINT16 len);
    651 
    652 /*******************************************************************************
    653 **
    654 ** Function         BTA_AvProtectRsp
    655 **
    656 ** Description      Send a content protection response.  This function must
    657 **                  be called if a BTA_AV_PROTECT_REQ_EVT is received.
    658 **                  This function can only be used if AV is enabled with
    659 **                  feature BTA_AV_FEAT_PROTECT.
    660 **
    661 ** Returns          void
    662 **
    663 *******************************************************************************/
    664 BTA_API void BTA_AvProtectRsp(tBTA_AV_HNDL hndl, UINT8 error_code, UINT8 *p_data,
    665                               UINT16 len);
    666 
    667 /*******************************************************************************
    668 **
    669 ** Function         BTA_AvRemoteCmd
    670 **
    671 ** Description      Send a remote control command.  This function can only
    672 **                  be used if AV is enabled with feature BTA_AV_FEAT_RCCT.
    673 **
    674 ** Returns          void
    675 **
    676 *******************************************************************************/
    677 BTA_API void BTA_AvRemoteCmd(UINT8 rc_handle, UINT8 label, tBTA_AV_RC rc_id,
    678                              tBTA_AV_STATE key_state);
    679 
    680 /*******************************************************************************
    681 **
    682 ** Function         BTA_AvVendorCmd
    683 **
    684 ** Description      Send a vendor dependent remote control command.  This
    685 **                  function can only be used if AV is enabled with feature
    686 **                  BTA_AV_FEAT_VENDOR.
    687 **
    688 ** Returns          void
    689 **
    690 *******************************************************************************/
    691 BTA_API void BTA_AvVendorCmd(UINT8 rc_handle, UINT8 label, tBTA_AV_CODE cmd_code,
    692                              UINT8 *p_data, UINT16 len);
    693 
    694 /*******************************************************************************
    695 **
    696 ** Function         BTA_AvVendorRsp
    697 **
    698 ** Description      Send a vendor dependent remote control response.
    699 **                  This function must be called if a BTA_AV_VENDOR_CMD_EVT
    700 **                  is received. This function can only be used if AV is
    701 **                  enabled with feature BTA_AV_FEAT_VENDOR.
    702 **
    703 ** Returns          void
    704 **
    705 *******************************************************************************/
    706 BTA_API void BTA_AvVendorRsp(UINT8 rc_handle, UINT8 label, tBTA_AV_CODE rsp_code,
    707                              UINT8 *p_data, UINT16 len, UINT32 company_id);
    708 
    709 
    710 /*******************************************************************************
    711 **
    712 ** Function         BTA_AvOpenRc
    713 **
    714 ** Description      Open an AVRCP connection toward the device with the
    715 **                  specified handle
    716 **
    717 ** Returns          void
    718 **
    719 *******************************************************************************/
    720 BTA_API void BTA_AvOpenRc(tBTA_AV_HNDL handle);
    721 
    722 /*******************************************************************************
    723 **
    724 ** Function         BTA_AvCloseRc
    725 **
    726 ** Description      Close an AVRCP connection
    727 **
    728 ** Returns          void
    729 **
    730 *******************************************************************************/
    731 BTA_API void BTA_AvCloseRc(UINT8 rc_handle);
    732 
    733 /*******************************************************************************
    734 **
    735 ** Function         BTA_AvMetaRsp
    736 **
    737 ** Description      Send a Metadata command/response. The message contained
    738 **                  in p_pkt can be composed with AVRC utility functions.
    739 **                  This function can only be used if AV is enabled with feature
    740 **                  BTA_AV_FEAT_METADATA.
    741 **
    742 ** Returns          void
    743 **
    744 *******************************************************************************/
    745 BTA_API void BTA_AvMetaRsp(UINT8 rc_handle, UINT8 label, tBTA_AV_CODE rsp_code,
    746                                BT_HDR *p_pkt);
    747 
    748 /*******************************************************************************
    749 **
    750 ** Function         BTA_AvMetaCmd
    751 **
    752 ** Description      Send a Metadata/Advanced Control command. The message contained
    753 **                  in p_pkt can be composed with AVRC utility functions.
    754 **                  This function can only be used if AV is enabled with feature
    755 **                  BTA_AV_FEAT_METADATA.
    756 **                  This message is sent only when the peer supports the TG role.
    757 *8                  The only command makes sense right now is the absolute volume command.
    758 **
    759 ** Returns          void
    760 **
    761 *******************************************************************************/
    762 BTA_API void BTA_AvMetaCmd(UINT8 rc_handle, UINT8 label, tBTA_AV_CMD cmd_code, BT_HDR *p_pkt);
    763 
    764 #ifdef __cplusplus
    765 }
    766 #endif
    767 
    768 #endif /* BTA_AV_API_H */
    769