src/core/linux/SDL_udev.h
author Sam Lantinga <slouken@libsdl.org>
Sun, 01 Jan 2017 18:33:28 -0800
changeset 10737 3406a0f8b041
parent 10638 d11daa346140
child 11296 44853f387017
permissions -rw-r--r--
Updated copyright for 2017
     1 /*
     2   Simple DirectMedia Layer
     3   Copyright (C) 1997-2017 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_PrivateData
    68 {
    69     const char *udev_library;
    70     void *udev_handle;
    71     struct udev *udev;
    72     struct udev_monitor *udev_mon;
    73     int ref_count;
    74     SDL_UDEV_CallbackList *first, *last;
    75     
    76     /* Function pointers */
    77     const char *(*udev_device_get_action)(struct udev_device *);
    78     const char *(*udev_device_get_devnode)(struct udev_device *);
    79     const char *(*udev_device_get_subsystem)(struct udev_device *);
    80 	struct udev_device *(*udev_device_get_parent_with_subsystem_devtype)(struct udev_device *udev_device, const char *subsystem, const char *devtype);
    81     const char *(*udev_device_get_property_value)(struct udev_device *, const char *);
    82 	const char *(*udev_device_get_sysattr_value)(struct udev_device *udev_device, const char *sysattr);
    83     struct udev_device *(*udev_device_new_from_syspath)(struct udev *, const char *);
    84     void (*udev_device_unref)(struct udev_device *);
    85     int (*udev_enumerate_add_match_property)(struct udev_enumerate *, const char *, const char *);
    86     int (*udev_enumerate_add_match_subsystem)(struct udev_enumerate *, const char *);
    87     struct udev_list_entry *(*udev_enumerate_get_list_entry)(struct udev_enumerate *);
    88     struct udev_enumerate *(*udev_enumerate_new)(struct udev *);
    89     int (*udev_enumerate_scan_devices)(struct udev_enumerate *);
    90     void (*udev_enumerate_unref)(struct udev_enumerate *);
    91     const char *(*udev_list_entry_get_name)(struct udev_list_entry *);
    92     struct udev_list_entry *(*udev_list_entry_get_next)(struct udev_list_entry *);
    93     int (*udev_monitor_enable_receiving)(struct udev_monitor *);
    94     int (*udev_monitor_filter_add_match_subsystem_devtype)(struct udev_monitor *, const char *, const char *);
    95     int (*udev_monitor_get_fd)(struct udev_monitor *);
    96     struct udev_monitor *(*udev_monitor_new_from_netlink)(struct udev *, const char *);
    97     struct udev_device *(*udev_monitor_receive_device)(struct udev_monitor *);
    98     void (*udev_monitor_unref)(struct udev_monitor *);
    99     struct udev *(*udev_new)(void);
   100     void (*udev_unref)(struct udev *);
   101     struct udev_device * (*udev_device_new_from_devnum)(struct udev *udev, char type, dev_t devnum);
   102     dev_t (*udev_device_get_devnum) (struct udev_device *udev_device);
   103 } SDL_UDEV_PrivateData;
   104 
   105 extern int SDL_UDEV_Init(void);
   106 extern void SDL_UDEV_Quit(void);
   107 extern void SDL_UDEV_UnloadLibrary(void);
   108 extern int SDL_UDEV_LoadLibrary(void);
   109 extern void SDL_UDEV_Poll(void);
   110 extern void SDL_UDEV_Scan(void);
   111 extern int SDL_UDEV_AddCallback(SDL_UDEV_Callback cb);
   112 extern void SDL_UDEV_DelCallback(SDL_UDEV_Callback cb);
   113 
   114 
   115 
   116 
   117 #endif /* HAVE_LIBUDEV_H */
   118 
   119 #endif /* SDL_udev_h_ */