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 private interface file for the BTA data gateway. 22 * 23 ******************************************************************************/ 24 #ifndef BTA_PAN_INT_H 25 #define BTA_PAN_INT_H 26 27 #include <cstdint> 28 29 #include "bta/include/bta_api.h" 30 #include "bta/include/bta_sec_api.h" 31 #include "bta/include/bta_pan_api.h" 32 #include "bta/sys/bta_sys.h" 33 #include "osi/include/fixed_queue.h" 34 #include "stack/include/bt_hdr.h" 35 #include "stack/include/pan_api.h" 36 #include "types/raw_address.h" 37 38 /***************************************************************************** 39 * Constants 40 ****************************************************************************/ 41 42 /* PAN events */ 43 enum { 44 /* these events are handled by the state machine */ 45 BTA_PAN_API_CLOSE_EVT = BTA_SYS_EVT_START(BTA_ID_PAN), 46 BTA_PAN_CI_TX_READY_EVT, 47 BTA_PAN_CI_RX_READY_EVT, 48 BTA_PAN_CI_TX_FLOW_EVT, 49 BTA_PAN_CI_RX_WRITE_EVT, 50 BTA_PAN_CI_RX_WRITEBUF_EVT, 51 BTA_PAN_CONN_OPEN_EVT, 52 BTA_PAN_CONN_CLOSE_EVT, 53 BTA_PAN_BNEP_FLOW_ENABLE_EVT, 54 BTA_PAN_RX_FROM_BNEP_READY_EVT, 55 56 /* these events are handled outside of the state machine */ 57 BTA_PAN_API_ENABLE_EVT, 58 BTA_PAN_API_DISABLE_EVT, 59 BTA_PAN_API_SET_ROLE_EVT, 60 BTA_PAN_API_OPEN_EVT 61 }; 62 63 /* state machine states */ 64 enum { BTA_PAN_IDLE_ST, BTA_PAN_OPEN_ST, BTA_PAN_CLOSING_ST }; 65 66 /***************************************************************************** 67 * Data types 68 ****************************************************************************/ 69 70 /* data type for BTA_PAN_API_ENABLE_EVT */ 71 typedef struct { 72 BT_HDR_RIGID hdr; /* Event header */ 73 tBTA_PAN_CBACK* p_cback; /* PAN callback function */ 74 } tBTA_PAN_API_ENABLE; 75 76 /* data type for BTA_PAN_API_REG_ROLE_EVT */ 77 typedef struct { 78 BT_HDR_RIGID hdr; /* Event header */ 79 char user_name[BTA_SERVICE_NAME_LEN + 1]; /* Service name */ 80 char nap_name[BTA_SERVICE_NAME_LEN + 1]; /* Service name */ 81 tBTA_PAN_ROLE role; 82 uint8_t user_app_id; 83 uint8_t nap_app_id; 84 } tBTA_PAN_API_SET_ROLE; 85 86 /* data type for BTA_PAN_API_OPEN_EVT */ 87 typedef struct { 88 BT_HDR_RIGID hdr; /* Event header */ 89 tBTA_PAN_ROLE local_role; /* local role */ 90 tBTA_PAN_ROLE peer_role; /* peer role */ 91 RawAddress bd_addr; /* peer bdaddr */ 92 } tBTA_PAN_API_OPEN; 93 94 /* data type for BTA_PAN_CI_TX_FLOW_EVT */ 95 typedef struct { 96 BT_HDR_RIGID hdr; /* Event header */ 97 bool enable; /* Flow control setting */ 98 } tBTA_PAN_CI_TX_FLOW; 99 100 /* data type for BTA_PAN_CONN_OPEN_EVT */ 101 typedef struct { 102 BT_HDR_RIGID hdr; /* Event header */ 103 tPAN_RESULT result; 104 105 } tBTA_PAN_CONN; 106 107 /* pan data param */ 108 typedef struct { 109 BT_HDR_RIGID hdr; 110 RawAddress src; 111 RawAddress dst; 112 uint16_t protocol; 113 bool ext; 114 bool forward; 115 116 } tBTA_PAN_DATA_PARAMS; 117 118 /* union of all data types */ 119 typedef union { 120 BT_HDR_RIGID hdr; 121 tBTA_PAN_API_ENABLE api_enable; 122 tBTA_PAN_API_SET_ROLE api_set_role; 123 tBTA_PAN_API_OPEN api_open; 124 tBTA_PAN_CI_TX_FLOW ci_tx_flow; 125 tBTA_PAN_CONN conn; 126 tBTA_PAN_DATA_PARAMS params; 127 } tBTA_PAN_DATA; 128 129 /* state machine control block */ 130 typedef struct { 131 RawAddress bd_addr; /* peer bdaddr */ 132 fixed_queue_t* 133 data_queue; /* Queue of buffers waiting to be passed to application */ 134 uint16_t handle; /* BTA PAN/BNEP handle */ 135 bool in_use; /* scb in use */ 136 tBTA_SEC sec_mask; /* Security mask */ 137 bool pan_flow_enable; /* BNEP flow control state */ 138 bool app_flow_enable; /* Application flow control state */ 139 uint8_t state; /* State machine state */ 140 tBTA_PAN_ROLE local_role; /* local role */ 141 tBTA_PAN_ROLE peer_role; /* peer role */ 142 uint8_t app_id; /* application id for the connection */ 143 144 } tBTA_PAN_SCB; 145 146 /* main control block */ 147 typedef struct { 148 tBTA_PAN_SCB scb[BTA_PAN_NUM_CONN]; /* state machine control blocks */ 149 tBTA_PAN_CBACK* p_cback; /* PAN callback function */ 150 uint8_t app_id[3]; /* application id for PAN roles */ 151 uint8_t flow_mask; /* Data flow mask */ 152 uint8_t q_level; /* queue level set by application for TX data */ 153 154 } tBTA_PAN_CB; 155 156 /***************************************************************************** 157 * Global data 158 ****************************************************************************/ 159 160 /* PAN control block */ 161 extern tBTA_PAN_CB bta_pan_cb; 162 163 /***************************************************************************** 164 * Function prototypes 165 ****************************************************************************/ 166 tBTA_PAN_SCB* bta_pan_scb_alloc(void); 167 void bta_pan_scb_dealloc(tBTA_PAN_SCB* p_scb); 168 uint8_t bta_pan_scb_to_idx(tBTA_PAN_SCB* p_scb); 169 tBTA_PAN_SCB* bta_pan_scb_by_handle(uint16_t handle); 170 bool bta_pan_hdl_event(const BT_HDR_RIGID* p_msg); 171 172 /* action functions */ 173 void bta_pan_enable(tBTA_PAN_DATA* p_data); 174 void bta_pan_disable(void); 175 void bta_pan_set_role(tBTA_PAN_DATA* p_data); 176 void bta_pan_open(tBTA_PAN_SCB* p_scb, tBTA_PAN_DATA* p_data); 177 void bta_pan_api_close(tBTA_PAN_SCB* p_scb, tBTA_PAN_DATA* p_data); 178 void bta_pan_rx_path(tBTA_PAN_SCB* p_scb, tBTA_PAN_DATA* p_data); 179 void bta_pan_tx_path(tBTA_PAN_SCB* p_scb, tBTA_PAN_DATA* p_data); 180 void bta_pan_tx_flow(tBTA_PAN_SCB* p_scb, tBTA_PAN_DATA* p_data); 181 void bta_pan_conn_open(tBTA_PAN_SCB* p_scb, tBTA_PAN_DATA* p_data); 182 void bta_pan_conn_close(tBTA_PAN_SCB* p_scb, tBTA_PAN_DATA* p_data); 183 void bta_pan_write_buf(tBTA_PAN_SCB* p_scb, tBTA_PAN_DATA* p_data); 184 void bta_pan_free_buf(tBTA_PAN_SCB* p_scb, tBTA_PAN_DATA* p_data); 185 186 #endif /* BTA_PAN_INT_H */ 187