1 /****************************************************************************** 2 * 3 * Copyright 2014 Google, Inc. 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 #pragma once 20 21 #include <base/callback.h> 22 #include <base/location.h> 23 #include <stdbool.h> 24 25 #include "bt_types.h" 26 #include "osi/include/allocator.h" 27 #include "osi/include/fixed_queue.h" 28 #include "osi/include/future.h" 29 #include "osi/include/osi.h" 30 31 static const char HCI_MODULE[] = "hci_module"; 32 33 ///// LEGACY DEFINITIONS ///// 34 35 /* Message event mask across Host/Controller lib and stack */ 36 #define MSG_EVT_MASK 0xFF00 /* eq. BT_EVT_MASK */ 37 #define MSG_SUB_EVT_MASK 0x00FF /* eq. BT_SUB_EVT_MASK */ 38 39 /* Message event ID passed from Host/Controller lib to stack */ 40 #define MSG_HC_TO_STACK_HCI_ERR 0x1300 /* eq. BT_EVT_TO_BTU_HCIT_ERR */ 41 #define MSG_HC_TO_STACK_HCI_ACL 0x1100 /* eq. BT_EVT_TO_BTU_HCI_ACL */ 42 #define MSG_HC_TO_STACK_HCI_SCO 0x1200 /* eq. BT_EVT_TO_BTU_HCI_SCO */ 43 #define MSG_HC_TO_STACK_HCI_EVT 0x1000 /* eq. BT_EVT_TO_BTU_HCI_EVT */ 44 #define MSG_HC_TO_STACK_L2C_SEG_XMIT 0x1900 /* BT_EVT_TO_BTU_L2C_SEG_XMIT */ 45 46 /* Message event ID passed from stack to vendor lib */ 47 #define MSG_STACK_TO_HC_HCI_ACL 0x2100 /* eq. BT_EVT_TO_LM_HCI_ACL */ 48 #define MSG_STACK_TO_HC_HCI_SCO 0x2200 /* eq. BT_EVT_TO_LM_HCI_SCO */ 49 #define MSG_STACK_TO_HC_HCI_CMD 0x2000 /* eq. BT_EVT_TO_LM_HCI_CMD */ 50 51 /* Local Bluetooth Controller ID for BR/EDR */ 52 #define LOCAL_BR_EDR_CONTROLLER_ID 0 53 54 ///// END LEGACY DEFINITIONS ///// 55 56 typedef struct hci_hal_t hci_hal_t; 57 typedef struct btsnoop_t btsnoop_t; 58 typedef struct controller_t controller_t; 59 typedef struct hci_inject_t hci_inject_t; 60 typedef struct packet_fragmenter_t packet_fragmenter_t; 61 typedef struct vendor_t vendor_t; 62 63 typedef unsigned char* bdaddr_t; 64 typedef uint16_t command_opcode_t; 65 66 typedef void (*command_complete_cb)(BT_HDR* response, void* context); 67 typedef void (*command_status_cb)(uint8_t status, BT_HDR* command, 68 void* context); 69 70 typedef struct hci_t { 71 // Set the callback that the HCI layer uses to send data upwards 72 void (*set_data_cb)( 73 base::Callback<void(const base::Location&, BT_HDR*)> send_data_cb); 74 75 // Send a command through the HCI layer 76 void (*transmit_command)(BT_HDR* command, 77 command_complete_cb complete_callback, 78 command_status_cb status_cb, void* context); 79 80 future_t* (*transmit_command_futured)(BT_HDR* command); 81 82 // Send some data downward through the HCI layer 83 void (*transmit_downward)(uint16_t type, void* data); 84 } hci_t; 85 86 const hci_t* hci_layer_get_interface(); 87 88 const hci_t* hci_layer_get_test_interface( 89 const allocator_t* buffer_allocator_interface, 90 const btsnoop_t* btsnoop_interface, 91 const packet_fragmenter_t* packet_fragmenter_interface); 92 93 void post_to_main_message_loop(const base::Location& from_here, BT_HDR* p_msg); 94 95 void hci_layer_cleanup_interface(); 96