SDL  2.0
SDL_sysjoystick_c.h
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1 /*
2  Simple DirectMedia Layer
3  Copyright (C) 1997-2019 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 #ifndef SDL_sysjoystick_c_h_
23 #define SDL_sysjoystick_c_h_
24 
25 #include <linux/input.h>
26 
27 struct SDL_joylist_item;
28 
29 /* The private structure used to keep track of a joystick */
30 struct joystick_hwdata
31 {
32  int fd;
33  struct SDL_joylist_item *item;
35  char *fname; /* Used in haptic subsystem */
36 
39  struct ff_effect effect;
40 
41  /* The current Linux joystick driver maps hats to two axes */
42  struct hwdata_hat
43  {
44  int axis[2];
45  } *hats;
46  /* The current Linux joystick driver maps balls to two axes */
47  struct hwdata_ball
48  {
49  int axis[2];
50  } *balls;
51 
52  /* Support for the Linux 2.4 unified input interface */
53  Uint8 key_map[KEY_MAX];
54  Uint8 abs_map[ABS_MAX];
55  struct axis_correct
56  {
57  int used;
58  int coef[3];
59  } abs_correct[ABS_MAX];
60 
61  int fresh;
62 
63  /* Steam Controller support */
65  /* 4 = (ABS_HAT3X-ABS_HAT0X)/2 (see input-event-codes.h in kernel) */
66  int hats_indices[4];
67 
68  /* Set when gamepad is pending removal due to ENODEV read error */
70 };
71 
72 #endif /* SDL_sysjoystick_c_h_ */
73 
74 /* vi: set ts=4 sw=4 expandtab: */
SDL_JoystickGUID guid
struct joystick_hwdata::axis_correct abs_correct[ABS_MAX]
Uint8 key_map[KEY_MAX]
Uint8 abs_map[ABS_MAX]
uint8_t Uint8
Definition: SDL_stdinc.h:179
struct ff_effect effect
SDL_bool
Definition: SDL_stdinc.h:161
SDL_bool m_bSteamController
struct SDL_joylist_item * item
struct joystick_hwdata::hwdata_ball * balls