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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 interface file for data gateway call-out functions.
     22  *
     23  ******************************************************************************/
     24 #ifndef BTA_PAN_CO_H
     25 #define BTA_PAN_CO_H
     26 
     27 #include "bta_pan_api.h"
     28 
     29 /*****************************************************************************
     30  *  Constants
     31  ****************************************************************************/
     32 
     33 /* BT_HDR buffer offset */
     34 #define BTA_PAN_MIN_OFFSET PAN_MINIMUM_OFFSET
     35 
     36 /* Data Flow Mask */
     37 #define BTA_PAN_RX_PUSH 0x00     /* RX push. */
     38 #define BTA_PAN_RX_PUSH_BUF 0x01 /* RX push with zero copy. */
     39 #define BTA_PAN_RX_PULL 0x02     /* RX pull. */
     40 #define BTA_PAN_TX_PUSH 0x00     /* TX push. */
     41 #define BTA_PAN_TX_PUSH_BUF 0x10 /* TX push with zero copy. */
     42 #define BTA_PAN_TX_PULL 0x20     /* TX pull. */
     43 
     44 /*****************************************************************************
     45  *  Function Declarations
     46  ****************************************************************************/
     47 
     48 /*******************************************************************************
     49  *
     50  * Function         bta_pan_co_init
     51  *
     52  * Description      This callout function is executed by PAN when a server is
     53  *                  started by calling BTA_PanEnable().  This function can be
     54  *                  used by the phone to initialize data paths or for other
     55  *                  initialization purposes.  The function must return the
     56  *                  data flow mask as described below.
     57  *
     58  *
     59  * Returns          Data flow mask.
     60  *
     61  ******************************************************************************/
     62 extern uint8_t bta_pan_co_init(uint8_t* q_level);
     63 
     64 /*******************************************************************************
     65  *
     66  * Function         bta_pan_co_open
     67  *
     68  * Description      This function is executed by PAN when a connection
     69  *                  is opened.  The phone can use this function to set
     70  *                  up data paths or perform any required initialization.
     71  *
     72  *
     73  * Returns          void
     74  *
     75  ******************************************************************************/
     76 extern void bta_pan_co_open(uint16_t handle, uint8_t app_id,
     77                             tBTA_PAN_ROLE local_role, tBTA_PAN_ROLE peer_role,
     78                             BD_ADDR peer_addr);
     79 
     80 /*******************************************************************************
     81  *
     82  * Function         bta_pan_co_close
     83  *
     84  * Description      This function is called by PAN when a connection to a
     85  *                  server is closed.
     86  *
     87  *
     88  * Returns          void
     89  *
     90  ******************************************************************************/
     91 extern void bta_pan_co_close(uint16_t handle, uint8_t app_id);
     92 
     93 /*******************************************************************************
     94  *
     95  * Function         bta_pan_co_tx_path
     96  *
     97  * Description      This function is called by PAN to transfer data on the
     98  *                  TX path; that is, data being sent from BTA to the phone.
     99  *                  This function is used when the TX data path is configured
    100  *                  to use the pull interface.
    101  *
    102  *
    103  * Returns          void
    104  *
    105  ******************************************************************************/
    106 extern void bta_pan_co_tx_path(uint16_t handle, uint8_t app_id);
    107 
    108 /*******************************************************************************
    109  *
    110  * Function         bta_pan_co_rx_path
    111  *
    112  * Description      This function is called by PAN to transfer data on the
    113  *                  RX path; that is, data being sent from the phone to BTA.
    114  *                  This function is used when the RX data path is configured
    115  *                  to use the pull interface.
    116  *
    117  *
    118  * Returns          void
    119  *
    120  ******************************************************************************/
    121 extern void bta_pan_co_rx_path(uint16_t handle, uint8_t app_id);
    122 
    123 /*******************************************************************************
    124  *
    125  * Function         bta_pan_co_tx_write
    126  *
    127  * Description      This function is called by PAN to send data to the phone
    128  *                  when the TX path is configured to use a push interface.
    129  *                  The implementation of this function must copy the data to
    130  *                  the phone's memory.
    131  *
    132  *
    133  * Returns          void
    134  *
    135  ******************************************************************************/
    136 extern void bta_pan_co_tx_write(uint16_t handle, uint8_t app_id, BD_ADDR src,
    137                                 BD_ADDR dst, uint16_t protocol, uint8_t* p_data,
    138                                 uint16_t len, bool ext, bool forward);
    139 
    140 /*******************************************************************************
    141  *
    142  * Function         bta_pan_co_tx_writebuf
    143  *
    144  * Description      This function is called by PAN to send data to the phone
    145  *                  when the TX path is configured to use a push interface with
    146  *                  zero copy.  The phone must free the buffer using function
    147  *                  osi_free() when it is through processing the buffer.
    148  *
    149  *
    150  * Returns          void
    151  *
    152  ******************************************************************************/
    153 extern void bta_pan_co_tx_writebuf(uint16_t handle, uint8_t app_id, BD_ADDR src,
    154                                    BD_ADDR dst, uint16_t protocol,
    155                                    BT_HDR* p_buf, bool ext, bool forward);
    156 
    157 /*******************************************************************************
    158  *
    159  * Function         bta_pan_co_rx_flow
    160  *
    161  * Description      This function is called by PAN to enable or disable
    162  *                  data flow on the RX path when it is configured to use
    163  *                  a push interface.  If data flow is disabled the phone must
    164  *                  not call bta_pan_ci_rx_write() or bta_pan_ci_rx_writebuf()
    165  *                  until data flow is enabled again.
    166  *
    167  *
    168  * Returns          void
    169  *
    170  ******************************************************************************/
    171 extern void bta_pan_co_rx_flow(uint16_t handle, uint8_t app_id, bool enable);
    172 
    173 /*******************************************************************************
    174  *
    175  * Function         bta_pan_co_filt_ind
    176  *
    177  * Description      protocol filter indication from peer device
    178  *
    179  * Returns          void
    180  *
    181  ******************************************************************************/
    182 extern void bta_pan_co_pfilt_ind(uint16_t handle, bool indication,
    183                                  tBTA_PAN_STATUS result, uint16_t len,
    184                                  uint8_t* p_filters);
    185 
    186 /*******************************************************************************
    187  *
    188  * Function         bta_pan_co_mfilt_ind
    189  *
    190  * Description      multicast filter indication from peer device
    191  *
    192  * Returns          void
    193  *
    194  ******************************************************************************/
    195 extern void bta_pan_co_mfilt_ind(uint16_t handle, bool indication,
    196                                  tBTA_PAN_STATUS result, uint16_t len,
    197                                  uint8_t* p_filters);
    198 
    199 #endif /* BTA_PAN_CO_H */
    200