1 | /*
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2 | * Copyright (C) 2009-2012 by Matthias Ringwald
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3 | *
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4 | * Redistribution and use in source and binary forms, with or without
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5 | * modification, are permitted provided that the following conditions
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6 | * are met:
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7 | *
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8 | * 1. Redistributions of source code must retain the above copyright
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9 | * notice, this list of conditions and the following disclaimer.
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10 | * 2. Redistributions in binary form must reproduce the above copyright
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11 | * notice, this list of conditions and the following disclaimer in the
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12 | * documentation and/or other materials provided with the distribution.
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13 | * 3. Neither the name of the copyright holders nor the names of
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14 | * contributors may be used to endorse or promote products derived
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15 | * from this software without specific prior written permission.
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16 | * 4. Any redistribution, use, or modification is done solely for
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17 | * personal benefit and not for any commercial purpose or for
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18 | * monetary gain.
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19 | *
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20 | * THIS SOFTWARE IS PROVIDED BY MATTHIAS RINGWALD AND CONTRIBUTORS
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21 | * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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22 | * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
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23 | * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL MATTHIAS
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24 | * RINGWALD OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
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25 | * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
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26 | * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
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27 | * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
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28 | * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
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29 | * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF
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30 | * THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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31 | * SUCH DAMAGE.
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32 | *
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33 | * Please inquire about commercial licensing options at btstack@ringwald.ch
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34 | *
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35 | */
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36 |
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37 | /*
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38 | * hci_transport.h
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39 | *
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40 | * HCI Transport API -- allows BT Daemon to use different transport protcols
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41 | *
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42 | * Created by Matthias Ringwald on 4/29/09.
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43 | *
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44 | */
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45 | #ifndef __HCI_TRANSPORT_H
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46 | #define __HCI_TRANSPORT_H
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47 |
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48 | #include <stdint.h>
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49 | #include <btstack/run_loop.h>
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50 |
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51 | #if defined __cplusplus
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52 | extern "C" {
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53 | #endif
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54 |
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55 | /* HCI packet types */
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56 | typedef struct {
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57 | int (*open)(void *transport_config);
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58 | int (*close)(void *transport_config);
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59 | int (*send_packet)(uint8_t packet_type, uint8_t *packet, int size);
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60 | void (*register_packet_handler)(void (*handler)(uint8_t packet_type, uint8_t *packet, uint16_t size));
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61 | const char * (*get_transport_name)(void);
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62 | // custom extension for UART transport implementations
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63 | int (*set_baudrate)(uint32_t baudrate);
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64 | // support async transport layers, e.g. IRQ driven without buffers
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65 | int (*can_send_packet_now)(uint8_t packet_type);
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66 | } hci_transport_t;
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67 |
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68 | typedef struct {
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69 | const char *device_name;
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70 | uint32_t baudrate_init; // initial baud rate
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71 | uint32_t baudrate_main; // = 0: same as initial baudrate
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72 | int flowcontrol; //
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73 | } hci_uart_config_t;
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74 |
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75 |
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76 | // inline various hci_transport_X.h files
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77 | extern const hci_transport_t * hci_transport_h4_instance(void);
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78 | extern const hci_transport_t * hci_transport_h4_dma_instance(void);
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79 | extern const hci_transport_t * hci_transport_h4_iphone_instance(void);
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80 | extern const hci_transport_t * hci_transport_h5_instance(void);
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81 | extern const hci_transport_t * hci_transport_usb_instance(void);
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82 |
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83 | // support for "enforece wake device" in h4 - used by iOS power management
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84 | extern void hci_transport_h4_iphone_set_enforce_wake_device(char *path);
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85 |
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86 | #if defined __cplusplus
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87 | }
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88 | #endif
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89 |
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90 | #endif // __HCI_TRANSPORT_H
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