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Fixed handling of BACK button on newer Xbox One S controllers
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@slouken
slouken committed Dec 4, 2020
1 parent 54e5136 commit 09909d0
Showing 1 changed file with 22 additions and 35 deletions.
57 changes: 22 additions & 35 deletions src/joystick/hidapi/SDL_hidapi_xboxone.c
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Expand Up @@ -596,6 +596,9 @@ HIDAPI_DriverXboxOne_HandleModePacket(SDL_Joystick *joystick, SDL_DriverXboxOne_
SDL_PrivateJoystickButton(joystick, SDL_CONTROLLER_BUTTON_GUIDE, (data[4] & 0x01) ? SDL_PRESSED : SDL_RELEASED);
}

/*
* Xbox One S with firmware 3.1.1221 uses a 16 byte packet and the GUIDE button in a separate packet
*/
static void
HIDAPI_DriverXboxOneBluetooth_HandleButtons16(SDL_Joystick *joystick, SDL_DriverXboxOne_Context *ctx, Uint8 *data, int size)
{
Expand All @@ -617,33 +620,14 @@ HIDAPI_DriverXboxOneBluetooth_HandleButtons16(SDL_Joystick *joystick, SDL_Driver

}

/*
* Xbox One S with firmware 4.8.1923 uses a 17 byte packet with BACK button in byte 16 and the GUIDE button in a separate packet
* Xbox One Elite Series 2 with firmware 4.7.1872 uses a 55 byte packet with BACK button in byte 16, paddles starting at byte 33, and the GUIDE button in a separate packet
* Xbox One Elite Series 2 with firmware 4.8.1908 uses a 33 byte packet with BACK button in byte 16, paddles starting at byte 17, and the GUIDE button in a separate packet
* Xbox One Series X with firmware 5.5.2641 uses a 17 byte packet with BACK and GUIDE buttons in byte 15, and SHARE button in byte 17
*/
static void
HIDAPI_DriverXboxOneBluetooth_HandleButtons17(SDL_Joystick *joystick, SDL_DriverXboxOne_Context *ctx, Uint8 *data, int size)
{
if (ctx->last_state[14] != data[14]) {
SDL_PrivateJoystickButton(joystick, SDL_CONTROLLER_BUTTON_A, (data[14] & 0x01) ? SDL_PRESSED : SDL_RELEASED);
SDL_PrivateJoystickButton(joystick, SDL_CONTROLLER_BUTTON_B, (data[14] & 0x02) ? SDL_PRESSED : SDL_RELEASED);
SDL_PrivateJoystickButton(joystick, SDL_CONTROLLER_BUTTON_X, (data[14] & 0x08) ? SDL_PRESSED : SDL_RELEASED);
SDL_PrivateJoystickButton(joystick, SDL_CONTROLLER_BUTTON_Y, (data[14] & 0x10) ? SDL_PRESSED : SDL_RELEASED);
SDL_PrivateJoystickButton(joystick, SDL_CONTROLLER_BUTTON_LEFTSHOULDER, (data[14] & 0x40) ? SDL_PRESSED : SDL_RELEASED);
SDL_PrivateJoystickButton(joystick, SDL_CONTROLLER_BUTTON_RIGHTSHOULDER, (data[14] & 0x80) ? SDL_PRESSED : SDL_RELEASED);
}

if (ctx->last_state[15] != data[15]) {
SDL_PrivateJoystickButton(joystick, SDL_CONTROLLER_BUTTON_BACK, (data[15] & 0x04) ? SDL_PRESSED : SDL_RELEASED);
SDL_PrivateJoystickButton(joystick, SDL_CONTROLLER_BUTTON_START, (data[15] & 0x08) ? SDL_PRESSED : SDL_RELEASED);
SDL_PrivateJoystickButton(joystick, SDL_CONTROLLER_BUTTON_LEFTSTICK, (data[15] & 0x20) ? SDL_PRESSED : SDL_RELEASED);
SDL_PrivateJoystickButton(joystick, SDL_CONTROLLER_BUTTON_RIGHTSTICK, (data[15] & 0x40) ? SDL_PRESSED : SDL_RELEASED);
SDL_PrivateJoystickButton(joystick, SDL_CONTROLLER_BUTTON_GUIDE, (data[15] & 0x10) ? SDL_PRESSED : SDL_RELEASED);
}

if (ctx->last_state[16] != data[16]) {
SDL_PrivateJoystickButton(joystick, SDL_CONTROLLER_BUTTON_MISC1, (data[16] & 0x01) ? SDL_PRESSED : SDL_RELEASED);
}
}

static void
HIDAPI_DriverXboxOneBluetooth_HandleButtonsElite(SDL_Joystick *joystick, SDL_DriverXboxOne_Context *ctx, Uint8 *data, int size)
HIDAPI_DriverXboxOneBluetooth_HandleButtons(SDL_Joystick *joystick, SDL_DriverXboxOne_Context *ctx, Uint8 *data, int size)
{
if (ctx->last_state[14] != data[14]) {
SDL_PrivateJoystickButton(joystick, SDL_CONTROLLER_BUTTON_A, (data[14] & 0x01) ? SDL_PRESSED : SDL_RELEASED);
Expand All @@ -655,14 +639,21 @@ HIDAPI_DriverXboxOneBluetooth_HandleButtonsElite(SDL_Joystick *joystick, SDL_Dri
}

if (ctx->last_state[15] != data[15]) {
if (ctx->has_share_button) {
SDL_PrivateJoystickButton(joystick, SDL_CONTROLLER_BUTTON_BACK, (data[15] & 0x04) ? SDL_PRESSED : SDL_RELEASED);
SDL_PrivateJoystickButton(joystick, SDL_CONTROLLER_BUTTON_GUIDE, (data[15] & 0x10) ? SDL_PRESSED : SDL_RELEASED);
}
SDL_PrivateJoystickButton(joystick, SDL_CONTROLLER_BUTTON_START, (data[15] & 0x08) ? SDL_PRESSED : SDL_RELEASED);
SDL_PrivateJoystickButton(joystick, SDL_CONTROLLER_BUTTON_LEFTSTICK, (data[15] & 0x20) ? SDL_PRESSED : SDL_RELEASED);
SDL_PrivateJoystickButton(joystick, SDL_CONTROLLER_BUTTON_RIGHTSTICK, (data[15] & 0x40) ? SDL_PRESSED : SDL_RELEASED);
SDL_PrivateJoystickButton(joystick, SDL_CONTROLLER_BUTTON_GUIDE, (data[15] & 0x10) ? SDL_PRESSED : SDL_RELEASED);
}

if (ctx->last_state[16] != data[16]) {
SDL_PrivateJoystickButton(joystick, SDL_CONTROLLER_BUTTON_BACK, (data[16] & 0x01) ? SDL_PRESSED : SDL_RELEASED);
if (ctx->has_share_button) {
SDL_PrivateJoystickButton(joystick, SDL_CONTROLLER_BUTTON_MISC1, (data[16] & 0x01) ? SDL_PRESSED : SDL_RELEASED);
} else {
SDL_PrivateJoystickButton(joystick, SDL_CONTROLLER_BUTTON_BACK, (data[16] & 0x01) ? SDL_PRESSED : SDL_RELEASED);
}
}

/*
Expand Down Expand Up @@ -727,14 +718,10 @@ HIDAPI_DriverXboxOneBluetooth_HandleStatePacket(SDL_Joystick *joystick, SDL_Driv
Sint16 axis;

if (size == 16) {
/* Xbox One S, with separate report for guide button */
/* Original Xbox One S, with separate report for guide button */
HIDAPI_DriverXboxOneBluetooth_HandleButtons16(joystick, ctx, data, size);
} else if (size == 17) {
/* Xbox One Series X, with guide button in the last byte of the report */
HIDAPI_DriverXboxOneBluetooth_HandleButtons17(joystick, ctx, data, size);
} else if (size > 17) {
/* Xbox One Elite Series 2, with paddles */
HIDAPI_DriverXboxOneBluetooth_HandleButtonsElite(joystick, ctx, data, size);
} else {
HIDAPI_DriverXboxOneBluetooth_HandleButtons(joystick, ctx, data, size);
}

if (ctx->last_state[13] != data[13]) {
Expand Down

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