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1 /******************************************************************************
2  *
3  *  Copyright 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                             const RawAddress& 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,
137                                 const RawAddress& src, const RawAddress& dst,
138                                 uint16_t protocol, uint8_t* p_data,
139                                 uint16_t len, bool ext, bool forward);
140 
141 /*******************************************************************************
142  *
143  * Function         bta_pan_co_tx_writebuf
144  *
145  * Description      This function is called by PAN to send data to the phone
146  *                  when the TX path is configured to use a push interface with
147  *                  zero copy.  The phone must free the buffer using function
148  *                  osi_free() when it is through processing the buffer.
149  *
150  *
151  * Returns          void
152  *
153  ******************************************************************************/
154 extern void bta_pan_co_tx_writebuf(uint16_t handle, uint8_t app_id,
155                                    const RawAddress& src, const RawAddress& dst,
156                                    uint16_t protocol, BT_HDR* p_buf, bool ext,
157                                    bool forward);
158 
159 /*******************************************************************************
160  *
161  * Function         bta_pan_co_rx_flow
162  *
163  * Description      This function is called by PAN to enable or disable
164  *                  data flow on the RX path when it is configured to use
165  *                  a push interface.  If data flow is disabled the phone must
166  *                  not call bta_pan_ci_rx_write() or bta_pan_ci_rx_writebuf()
167  *                  until data flow is enabled again.
168  *
169  *
170  * Returns          void
171  *
172  ******************************************************************************/
173 extern void bta_pan_co_rx_flow(uint16_t handle, uint8_t app_id, bool enable);
174 
175 /*******************************************************************************
176  *
177  * Function         bta_pan_co_filt_ind
178  *
179  * Description      protocol filter indication from peer device
180  *
181  * Returns          void
182  *
183  ******************************************************************************/
184 extern void bta_pan_co_pfilt_ind(uint16_t handle, bool indication,
185                                  tBTA_PAN_STATUS result, uint16_t len,
186                                  uint8_t* p_filters);
187 
188 /*******************************************************************************
189  *
190  * Function         bta_pan_co_mfilt_ind
191  *
192  * Description      multicast filter indication from peer device
193  *
194  * Returns          void
195  *
196  ******************************************************************************/
197 extern void bta_pan_co_mfilt_ind(uint16_t handle, bool indication,
198                                  tBTA_PAN_STATUS result, uint16_t len,
199                                  uint8_t* p_filters);
200 
201 #endif /* BTA_PAN_CO_H */
202