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