1 /* 2 * Copyright (C) 2014 BlueKitchen GmbH 3 * 4 * Redistribution and use in source and binary forms, with or without 5 * modification, are permitted provided that the following conditions 6 * are met: 7 * 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 3. Neither the name of the copyright holders nor the names of 14 * contributors may be used to endorse or promote products derived 15 * from this software without specific prior written permission. 16 * 4. Any redistribution, use, or modification is done solely for 17 * personal benefit and not for any commercial purpose or for 18 * monetary gain. 19 * 20 * THIS SOFTWARE IS PROVIDED BY BLUEKITCHEN GMBH AND CONTRIBUTORS 21 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 22 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS 23 * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL MATTHIAS 24 * RINGWALD OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, 25 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, 26 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS 27 * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED 28 * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, 29 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF 30 * THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 31 * SUCH DAMAGE. 32 * 33 * Please inquire about commercial licensing options at 34 * [email protected] 35 * 36 */ 37 38 /* 39 * hci_transport.h 40 * 41 * HCI Transport API -- allows BT Daemon to use different transport protcols 42 * 43 * Created by Matthias Ringwald on 4/29/09. 44 * 45 */ 46 #ifndef __HCI_TRANSPORT_H 47 #define __HCI_TRANSPORT_H 48 49 #include <stdint.h> 50 #include "run_loop.h" 51 52 #if defined __cplusplus 53 extern "C" { 54 #endif 55 56 /* API_START */ 57 58 /* HCI packet types */ 59 typedef struct { 60 int (*open)(void *transport_config); 61 int (*close)(void *transport_config); 62 int (*send_packet)(uint8_t packet_type, uint8_t *packet, int size); 63 void (*register_packet_handler)(void (*handler)(uint8_t packet_type, uint8_t *packet, uint16_t size)); 64 const char * (*get_transport_name)(void); 65 // custom extension for UART transport implementations 66 int (*set_baudrate)(uint32_t baudrate); 67 // support async transport layers, e.g. IRQ driven without buffers 68 int (*can_send_packet_now)(uint8_t packet_type); 69 } hci_transport_t; 70 71 typedef enum { 72 HCI_TRANSPORT_CONFIG_UART, 73 HCI_TRANSPORT_CONFIG_USB 74 } hci_transport_config_type_t; 75 76 typedef struct { 77 hci_transport_config_type_t type; 78 } hci_transport_config_t; 79 80 typedef struct { 81 hci_transport_config_type_t type; // == HCI_TRANSPORT_CONFIG_UART 82 uint32_t baudrate_init; // initial baud rate 83 uint32_t baudrate_main; // = 0: same as initial baudrate 84 int flowcontrol; // 85 const char *device_name; 86 } hci_transport_config_uart_t; 87 88 89 // inline various hci_transport_X.h files 90 91 /* 92 * @brief 93 */ 94 extern hci_transport_t * hci_transport_h4_posix_instance(void); 95 96 /* 97 * @brief 98 */ 99 extern hci_transport_t * hci_transport_h4_dma_instance(void); 100 101 /* 102 * @brief 103 */ 104 extern hci_transport_t * hci_transport_h4_iphone_instance(void); 105 106 /* 107 * @brief 108 */ 109 extern hci_transport_t * hci_transport_h4_wiced_instance(); 110 111 /* 112 * @brief 113 */ 114 extern hci_transport_t * hci_transport_usb_instance(void); 115 116 117 /* API_END */ 118 119 // support for "enforece wake device" in h4 - used by iOS power management 120 extern void hci_transport_h4_iphone_set_enforce_wake_device(char *path); 121 122 #if defined __cplusplus 123 } 124 #endif 125 126 #endif // __HCI_TRANSPORT_H 127