Atlas - SDL_libusb.h
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[FILE BEGIN]
1/*
2  Simple DirectMedia Layer
3  Copyright (C) 1997-2025 Sam Lantinga <[email protected]>
4
5  This software is provided 'as-is', without any express or implied
6  warranty.  In no event will the authors be held liable for any damages
7  arising from the use of this software.
8
9  Permission is granted to anyone to use this software for any purpose,
10  including commercial applications, and to alter it and redistribute it
11  freely, subject to the following restrictions:
12
13  1. The origin of this software must not be misrepresented; you must not
14     claim that you wrote the original software. If you use this software
15     in a product, an acknowledgment in the product documentation would be
16     appreciated but is not required.
17  2. Altered source versions must be plainly marked as such, and must not be
18     misrepresented as being the original software.
19  3. This notice may not be removed or altered from any source distribution.
20*/
21
22#include "SDL_internal.h"
23
24#ifdef HAVE_LIBUSB
25// libusb HIDAPI Implementation
26
27// Include this now, for our dynamically-loaded libusb context
28#include <libusb.h>
29
30typedef struct SDL_LibUSBContext
31{
32/* *INDENT-OFF* */ // clang-format off
33    int (LIBUSB_CALL *init)(libusb_context **ctx);
34    void (LIBUSB_CALL *exit)(libusb_context *ctx);
35    ssize_t (LIBUSB_CALL *get_device_list)(libusb_context *ctx, libusb_device ***list);
36    void (LIBUSB_CALL *free_device_list)(libusb_device **list, int unref_devices);
37    int (LIBUSB_CALL *get_device_descriptor)(libusb_device *dev, struct libusb_device_descriptor *desc);
38    int (LIBUSB_CALL *get_active_config_descriptor)(libusb_device *dev,    struct libusb_config_descriptor **config);
39    int (LIBUSB_CALL *get_config_descriptor)(
40        libusb_device *dev,
41        uint8_t config_index,
42        struct libusb_config_descriptor **config
43    );
44    void (LIBUSB_CALL *free_config_descriptor)(struct libusb_config_descriptor *config);
45    uint8_t (LIBUSB_CALL *get_bus_number)(libusb_device *dev);
46#ifdef SDL_PLATFORM_FREEBSD
47    int (LIBUSB_CALL *get_port_numbers)(libusb_device *dev, uint8_t *port_numbers, uint8_t port_numbers_len);
48#else
49    int (LIBUSB_CALL *get_port_numbers)(libusb_device *dev, uint8_t *port_numbers, int port_numbers_len);
50#endif
51    uint8_t (LIBUSB_CALL *get_device_address)(libusb_device *dev);
52    int (LIBUSB_CALL *open)(libusb_device *dev, libusb_device_handle **dev_handle);
53    void (LIBUSB_CALL *close)(libusb_device_handle *dev_handle);
54    libusb_device *(LIBUSB_CALL *get_device)(libusb_device_handle *dev_handle);
55    int (LIBUSB_CALL *claim_interface)(libusb_device_handle *dev_handle, int interface_number);
56    int (LIBUSB_CALL *release_interface)(libusb_device_handle *dev_handle, int interface_number);
57    int (LIBUSB_CALL *kernel_driver_active)(libusb_device_handle *dev_handle, int interface_number);
58    int (LIBUSB_CALL *detach_kernel_driver)(libusb_device_handle *dev_handle, int interface_number);
59    int (LIBUSB_CALL *attach_kernel_driver)(libusb_device_handle *dev_handle, int interface_number);
60    int (LIBUSB_CALL *set_interface_alt_setting)(libusb_device_handle *dev, int interface_number, int alternate_setting);
61    struct libusb_transfer * (LIBUSB_CALL *alloc_transfer)(int iso_packets);
62    int (LIBUSB_CALL *submit_transfer)(struct libusb_transfer *transfer);
63    int (LIBUSB_CALL *cancel_transfer)(struct libusb_transfer *transfer);
64    void (LIBUSB_CALL *free_transfer)(struct libusb_transfer *transfer);
65    int (LIBUSB_CALL *control_transfer)(
66        libusb_device_handle *dev_handle,
67        uint8_t request_type,
68        uint8_t bRequest,
69        uint16_t wValue,
70        uint16_t wIndex,
71        unsigned char *data,
72        uint16_t wLength,
73        unsigned int timeout
74    );
75    int (LIBUSB_CALL *interrupt_transfer)(
76        libusb_device_handle *dev_handle,
77        unsigned char endpoint,
78        unsigned char *data,
79        int length,
80        int *actual_length,
81        unsigned int timeout
82    );
83    int (LIBUSB_CALL *bulk_transfer)(
84        libusb_device_handle *dev_handle,
85        unsigned char endpoint,
86        unsigned char *data,
87        int length,
88        int *transferred,
89        unsigned int timeout
90    );
91    int (LIBUSB_CALL *handle_events)(libusb_context *ctx);
92    int (LIBUSB_CALL *handle_events_completed)(libusb_context *ctx, int *completed);
93    const char * (LIBUSB_CALL *error_name)(int errcode);
94/* *INDENT-ON* */ // clang-format on
95
96} SDL_LibUSBContext;
97
98extern bool SDL_InitLibUSB(SDL_LibUSBContext **ctx);
99extern void SDL_QuitLibUSB(void);
100
101#endif // HAVE_LIBUSB
102
[FILE END]
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