1 /* 2 Simple DirectMedia Layer 3 Copyright (C) 1997-2020 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: */ 126