SDL  2.0
SDL_udev.h
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1 /*
2  Simple DirectMedia Layer
3  Copyright (C) 1997-2018 Sam Lantinga <slouken@libsdl.org>
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 #ifndef SDL_udev_h_
25 #define SDL_udev_h_
26 
27 #if HAVE_LIBUDEV_H
28 
29 #ifndef SDL_USE_LIBUDEV
30 #define SDL_USE_LIBUDEV 1
31 #endif
32 
33 #include "SDL_loadso.h"
34 #include "SDL_events.h"
35 #include <libudev.h>
36 #include <sys/time.h>
37 #include <sys/types.h>
38 
39 /**
40  * \brief Device type
41  */
42 
43 typedef enum
44 {
45  SDL_UDEV_DEVICEADDED = 1,
46  SDL_UDEV_DEVICEREMOVED
47 } SDL_UDEV_deviceevent;
48 
49 /* A device can be any combination of these classes */
50 typedef enum
51 {
52  SDL_UDEV_DEVICE_UNKNOWN = 0x0000,
53  SDL_UDEV_DEVICE_MOUSE = 0x0001,
54  SDL_UDEV_DEVICE_KEYBOARD = 0x0002,
55  SDL_UDEV_DEVICE_JOYSTICK = 0x0004,
56  SDL_UDEV_DEVICE_SOUND = 0x0008,
57  SDL_UDEV_DEVICE_TOUCHSCREEN = 0x0010
58 } SDL_UDEV_deviceclass;
59 
60 typedef void (*SDL_UDEV_Callback)(SDL_UDEV_deviceevent udev_type, int udev_class, const char *devpath);
61 
62 typedef struct SDL_UDEV_CallbackList {
63  SDL_UDEV_Callback callback;
64  struct SDL_UDEV_CallbackList *next;
65 } SDL_UDEV_CallbackList;
66 
67 typedef struct SDL_UDEV_Symbols {
68  const char *(*udev_device_get_action)(struct udev_device *);
69  const char *(*udev_device_get_devnode)(struct udev_device *);
70  const char *(*udev_device_get_subsystem)(struct udev_device *);
71  struct udev_device *(*udev_device_get_parent_with_subsystem_devtype)(struct udev_device *udev_device, const char *subsystem, const char *devtype);
72  const char *(*udev_device_get_property_value)(struct udev_device *, const char *);
73  const char *(*udev_device_get_sysattr_value)(struct udev_device *udev_device, const char *sysattr);
74  struct udev_device *(*udev_device_new_from_syspath)(struct udev *, const char *);
75  void (*udev_device_unref)(struct udev_device *);
76  int (*udev_enumerate_add_match_property)(struct udev_enumerate *, const char *, const char *);
77  int (*udev_enumerate_add_match_subsystem)(struct udev_enumerate *, const char *);
78  struct udev_list_entry *(*udev_enumerate_get_list_entry)(struct udev_enumerate *);
79  struct udev_enumerate *(*udev_enumerate_new)(struct udev *);
80  int (*udev_enumerate_scan_devices)(struct udev_enumerate *);
81  void (*udev_enumerate_unref)(struct udev_enumerate *);
82  const char *(*udev_list_entry_get_name)(struct udev_list_entry *);
83  struct udev_list_entry *(*udev_list_entry_get_next)(struct udev_list_entry *);
84  int (*udev_monitor_enable_receiving)(struct udev_monitor *);
85  int (*udev_monitor_filter_add_match_subsystem_devtype)(struct udev_monitor *, const char *, const char *);
86  int (*udev_monitor_get_fd)(struct udev_monitor *);
87  struct udev_monitor *(*udev_monitor_new_from_netlink)(struct udev *, const char *);
88  struct udev_device *(*udev_monitor_receive_device)(struct udev_monitor *);
89  void (*udev_monitor_unref)(struct udev_monitor *);
90  struct udev *(*udev_new)(void);
91  void (*udev_unref)(struct udev *);
92  struct udev_device * (*udev_device_new_from_devnum)(struct udev *udev, char type, dev_t devnum);
93  dev_t (*udev_device_get_devnum) (struct udev_device *udev_device);
94 } SDL_UDEV_Symbols;
95 
96 typedef struct SDL_UDEV_PrivateData
97 {
98  const char *udev_library;
99  void *udev_handle;
100  struct udev *udev;
101  struct udev_monitor *udev_mon;
102  int ref_count;
103  SDL_UDEV_CallbackList *first, *last;
104 
105  /* Function pointers */
106  SDL_UDEV_Symbols syms;
107 } SDL_UDEV_PrivateData;
108 
109 extern int SDL_UDEV_Init(void);
110 extern void SDL_UDEV_Quit(void);
111 extern void SDL_UDEV_UnloadLibrary(void);
112 extern int SDL_UDEV_LoadLibrary(void);
113 extern void SDL_UDEV_Poll(void);
114 extern void SDL_UDEV_Scan(void);
115 extern int SDL_UDEV_AddCallback(SDL_UDEV_Callback cb);
116 extern void SDL_UDEV_DelCallback(SDL_UDEV_Callback cb);
117 extern const SDL_UDEV_Symbols *SDL_UDEV_GetUdevSyms(void);
118 extern void SDL_UDEV_ReleaseUdevSyms(void);
119 
120 
121 #endif /* HAVE_LIBUDEV_H */
122 
123 #endif /* SDL_udev_h_ */
124 
125 /* vi: set ts=4 sw=4 expandtab: */
SDL_events.h
callback
static Uint32 callback(Uint32 interval, void *param)
Definition: testtimer.c:34
first
const GLint * first
Definition: SDL_opengl_glext.h:368
void
SDL_PRINTF_FORMAT_STRING const char int SDL_PRINTF_FORMAT_STRING const char int SDL_PRINTF_FORMAT_STRING const char int SDL_PRINTF_FORMAT_STRING const char const char SDL_SCANF_FORMAT_STRING const char return SDL_ThreadFunction const char void return Uint32 return Uint32 void
Definition: SDL_dynapi_procs.h:89
SDL_loadso.h
type
GLuint GLuint GLsizei GLenum type
Definition: SDL_opengl.h:1571