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