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Added automatic mapping for Xbox Elite paddles using the xpadneo driver

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We can't actually tell yet whether a controller has paddles, so this code isn't effective, but I'll file an upstream issue and see if we can get that resolved.

(cherry picked from commit b0677f476fa43f4a113b04a959228fd38f95d740)
This commit is contained in:
Sam Lantinga 2023-06-13 10:06:36 -07:00
parent 7db23f4ef1
commit d2372c8538
1 changed files with 78 additions and 0 deletions
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78
src/joystick/linux/SDL_sysjoystick.c
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@ -75,6 +75,50 @@
#define BTN_DPAD_RIGHT 0x223
#endif
#ifndef BTN_TRIGGER_HAPPY
#define BTN_TRIGGER_HAPPY 0x2c0
#define BTN_TRIGGER_HAPPY1 0x2c0
#define BTN_TRIGGER_HAPPY2 0x2c1
#define BTN_TRIGGER_HAPPY3 0x2c2
#define BTN_TRIGGER_HAPPY4 0x2c3
#define BTN_TRIGGER_HAPPY5 0x2c4
#define BTN_TRIGGER_HAPPY6 0x2c5
#define BTN_TRIGGER_HAPPY7 0x2c6
#define BTN_TRIGGER_HAPPY8 0x2c7
#define BTN_TRIGGER_HAPPY9 0x2c8
#define BTN_TRIGGER_HAPPY10 0x2c9
#define BTN_TRIGGER_HAPPY11 0x2ca
#define BTN_TRIGGER_HAPPY12 0x2cb
#define BTN_TRIGGER_HAPPY13 0x2cc
#define BTN_TRIGGER_HAPPY14 0x2cd
#define BTN_TRIGGER_HAPPY15 0x2ce
#define BTN_TRIGGER_HAPPY16 0x2cf
#define BTN_TRIGGER_HAPPY17 0x2d0
#define BTN_TRIGGER_HAPPY18 0x2d1
#define BTN_TRIGGER_HAPPY19 0x2d2
#define BTN_TRIGGER_HAPPY20 0x2d3
#define BTN_TRIGGER_HAPPY21 0x2d4
#define BTN_TRIGGER_HAPPY22 0x2d5
#define BTN_TRIGGER_HAPPY23 0x2d6
#define BTN_TRIGGER_HAPPY24 0x2d7
#define BTN_TRIGGER_HAPPY25 0x2d8
#define BTN_TRIGGER_HAPPY26 0x2d9
#define BTN_TRIGGER_HAPPY27 0x2da
#define BTN_TRIGGER_HAPPY28 0x2db
#define BTN_TRIGGER_HAPPY29 0x2dc
#define BTN_TRIGGER_HAPPY30 0x2dd
#define BTN_TRIGGER_HAPPY31 0x2de
#define BTN_TRIGGER_HAPPY32 0x2df
#define BTN_TRIGGER_HAPPY33 0x2e0
#define BTN_TRIGGER_HAPPY34 0x2e1
#define BTN_TRIGGER_HAPPY35 0x2e2
#define BTN_TRIGGER_HAPPY36 0x2e3
#define BTN_TRIGGER_HAPPY37 0x2e4
#define BTN_TRIGGER_HAPPY38 0x2e5
#define BTN_TRIGGER_HAPPY39 0x2e6
#define BTN_TRIGGER_HAPPY40 0x2e7
#endif
#include "../../core/linux/SDL_evdev_capabilities.h"
#include "../../core/linux/SDL_udev.h"
#include "../../core/linux/SDL_sandbox.h"
@ -2099,6 +2143,40 @@ static SDL_bool LINUX_JoystickGetGamepadMapping(int device_index, SDL_GamepadMap
#endif
}
/* The xpadneo driver uses the happy buttons for triggers.
Unfortunately it also reports them as available for all controllers,
and exposes the Xbox Elite with the VID/PID of an Xbox 360 controller,
so we can't really tell whether this is an Xbox Elite or Xbox One S
controller.
xpadneo has a note about this in the driver code:
https://github.com/atar-axis/xpadneo/blob/master/hid-xpadneo/src/hid-xpadneo.c#L1137
*/
if (SDL_IsJoystickXboxOneElite(SDL_GetJoystickVendor(joystick), SDL_GetJoystickProduct(joystick))) {
int i;
unsigned int paddle_index = 0;
SDL_InputMapping *paddles[4] = {
&out->paddle1,
&out->paddle3,
&out->paddle2,
&out->paddle4
};
for (i = BTN_TRIGGER_HAPPY; i <= BTN_TRIGGER_HAPPY40; ++i) {
if (joystick->hwdata->has_key[i]) {
paddles[paddle_index]->kind = EMappingKind_Button;
paddles[paddle_index]->target = joystick->hwdata->key_map[i];
#ifdef DEBUG_GAMEPAD_MAPPING
SDL_Log("Mapped PADDLE%u to button %d (BTN_TRIGGER_HAPPY%d)", 1 + paddle_index, paddles[paddle_index]->target, i - BTN_TRIGGER_HAPPY);
#endif
++paddle_index;
if (paddle_index == SDL_arraysize(paddles)) {
break;
}
}
}
}
LINUX_JoystickClose(joystick);
SDL_free(joystick);