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Added automatic mapping support for Xbox controllers on the 6.x Linux kernels

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This automatically adds support for the share button and paddles when present.

(cherry picked from commit db1d4d3d76f5e21b2547463710b513fe0ebd7fad)
This commit is contained in:
Sam Lantinga 2023-06-13 16:40:30 -07:00
parent 681f67d353
commit fc72f12e7f
1 changed files with 73 additions and 70 deletions
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59
src/joystick/linux/SDL_sysjoystick.c
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@ -1788,6 +1788,10 @@ static SDL_bool LINUX_JoystickGetGamepadMapping(int device_index, SDL_GamepadMap
/* We have a gamepad, start filling out the mappings */
#ifdef DEBUG_GAMEPAD_MAPPING
SDL_Log("Mapping %s (VID/PID 0x%.4x/0x%.4x)", item->name, SDL_JoystickGetVendor(joystick), SDL_JoystickGetProduct(joystick));
#endif
if (joystick->hwdata->has_key[BTN_A]) {
out->a.kind = EMappingKind_Button;
out->a.target = joystick->hwdata->key_map[BTN_A];
@ -2143,37 +2147,36 @@ 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_JoystickGetVendor(joystick), SDL_JoystickGetProduct(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];
if (SDL_JoystickGetVendor(joystick) == USB_VENDOR_MICROSOFT) {
/* The Xbox Elite controllers have the paddles as BTN_TRIGGER_HAPPY4 - BTN_TRIGGER_HAPPY7 */
if (joystick->hwdata->has_key[BTN_TRIGGER_HAPPY5] &&
joystick->hwdata->has_key[BTN_TRIGGER_HAPPY6] &&
joystick->hwdata->has_key[BTN_TRIGGER_HAPPY7] &&
joystick->hwdata->has_key[BTN_TRIGGER_HAPPY8]) {
out->paddle1.kind = EMappingKind_Button;
out->paddle1.target = joystick->hwdata->key_map[BTN_TRIGGER_HAPPY5];
out->paddle2.kind = EMappingKind_Button;
out->paddle2.target = joystick->hwdata->key_map[BTN_TRIGGER_HAPPY7];
out->paddle3.kind = EMappingKind_Button;
out->paddle3.target = joystick->hwdata->key_map[BTN_TRIGGER_HAPPY6];
out->paddle4.kind = EMappingKind_Button;
out->paddle4.target = joystick->hwdata->key_map[BTN_TRIGGER_HAPPY8];
#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);
SDL_Log("Mapped PADDLE1 to button %d (BTN_TRIGGER_HAPPY4)", out->paddle1.target);
SDL_Log("Mapped PADDLE2 to button %d (BTN_TRIGGER_HAPPY6)", out->paddle2.target);
SDL_Log("Mapped PADDLE3 to button %d (BTN_TRIGGER_HAPPY5)", out->paddle3.target);
SDL_Log("Mapped PADDLE4 to button %d (BTN_TRIGGER_HAPPY7)", out->paddle4.target);
#endif
++paddle_index;
if (paddle_index == SDL_arraysize(paddles)) {
break;
}
}
/* The Xbox Series X controllers have the Share button as KEY_RECORD */
if (joystick->hwdata->has_key[KEY_RECORD]) {
out->misc1.kind = EMappingKind_Button;
out->misc1.target = joystick->hwdata->key_map[KEY_RECORD];
mapped |= MAPPED_DPAD_RIGHT;
#ifdef DEBUG_GAMEPAD_MAPPING
SDL_Log("Mapped MISC1 to button %d (KEY_RECORD)", out->misc1.target);
#endif
}
}