src/joystick/hidapi/SDL_hidapi_xbox360w.c - external/github.com/libsdl-org/SDL - Git at Google

 /*
   Simple DirectMedia Layer
   Copyright (C) 1997-2025 Sam Lantinga <slouken@libsdl.org>

   This software is provided 'as-is', without any express or implied
   warranty.  In no event will the authors be held liable for any damages
   arising from the use of this software.

   Permission is granted to anyone to use this software for any purpose,
   including commercial applications, and to alter it and redistribute it
   freely, subject to the following restrictions:

   1. The origin of this software must not be misrepresented; you must not
      claim that you wrote the original software. If you use this software
      in a product, an acknowledgment in the product documentation would be
      appreciated but is not required.
   2. Altered source versions must be plainly marked as such, and must not be
      misrepresented as being the original software.
   3. This notice may not be removed or altered from any source distribution.
 */
 #include "SDL_internal.h"

 #ifdef SDL_JOYSTICK_HIDAPI

 #include "../../SDL_hints_c.h"
 #include "../SDL_sysjoystick.h"
 #include "SDL_hidapijoystick_c.h"
 #include "SDL_hidapi_rumble.h"

 #ifdef SDL_JOYSTICK_HIDAPI_XBOX360

 // Define this if you want to log all packets from the controller
 // #define DEBUG_XBOX_PROTOCOL

 typedef struct
 {
     SDL_HIDAPI_Device *device;
     bool connected;
     int player_index;
     bool player_lights;
     Uint8 last_state[USB_PACKET_LENGTH];
 } SDL_DriverXbox360W_Context;

 static void HIDAPI_DriverXbox360W_RegisterHints(SDL_HintCallback callback, void *userdata)
 {
     SDL_AddHintCallback(SDL_HINT_JOYSTICK_HIDAPI_XBOX, callback, userdata);
     SDL_AddHintCallback(SDL_HINT_JOYSTICK_HIDAPI_XBOX_360, callback, userdata);
     SDL_AddHintCallback(SDL_HINT_JOYSTICK_HIDAPI_XBOX_360_WIRELESS, callback, userdata);
 }

 static void HIDAPI_DriverXbox360W_UnregisterHints(SDL_HintCallback callback, void *userdata)
 {
     SDL_RemoveHintCallback(SDL_HINT_JOYSTICK_HIDAPI_XBOX, callback, userdata);
     SDL_RemoveHintCallback(SDL_HINT_JOYSTICK_HIDAPI_XBOX_360, callback, userdata);
     SDL_RemoveHintCallback(SDL_HINT_JOYSTICK_HIDAPI_XBOX_360_WIRELESS, callback, userdata);
 }

 static bool HIDAPI_DriverXbox360W_IsEnabled(void)
 {
     return SDL_GetHintBoolean(SDL_HINT_JOYSTICK_HIDAPI_XBOX_360_WIRELESS,
                               SDL_GetHintBoolean(SDL_HINT_JOYSTICK_HIDAPI_XBOX_360, SDL_GetHintBoolean(SDL_HINT_JOYSTICK_HIDAPI_XBOX, SDL_GetHintBoolean(SDL_HINT_JOYSTICK_HIDAPI, SDL_HIDAPI_DEFAULT))));
 }

 static bool HIDAPI_DriverXbox360W_IsSupportedDevice(SDL_HIDAPI_Device *device, const char *name, SDL_GamepadType type, Uint16 vendor_id, Uint16 product_id, Uint16 version, int interface_number, int interface_class, int interface_subclass, int interface_protocol)
 {
     const int XB360W_IFACE_PROTOCOL = 129; // Wireless

     if ((vendor_id == USB_VENDOR_MICROSOFT && (product_id == USB_PRODUCT_XBOX360_WIRELESS_RECEIVER_THIRDPARTY2 || product_id == USB_PRODUCT_XBOX360_WIRELESS_RECEIVER_THIRDPARTY1 || product_id == USB_PRODUCT_XBOX360_WIRELESS_RECEIVER) && interface_protocol == 0) ||
         (type == SDL_GAMEPAD_TYPE_XBOX360 && interface_protocol == XB360W_IFACE_PROTOCOL)) {
         return true;
     }
     return false;
 }

 static bool SetSlotLED(SDL_hid_device *dev, Uint8 slot, bool on)
 {
     const bool blink = false;
     Uint8 mode = on ? ((blink ? 0x02 : 0x06) + slot) : 0;
     Uint8 led_packet[] = { 0x00, 0x00, 0x08, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 };

     led_packet[3] = 0x40 + (mode % 0x0e);
     if (SDL_hid_write(dev, led_packet, sizeof(led_packet)) != sizeof(led_packet)) {
         return false;
     }
     return true;
 }

 static void UpdateSlotLED(SDL_DriverXbox360W_Context *ctx)
 {
     if (ctx->player_lights && ctx->player_index >= 0) {
         SetSlotLED(ctx->device->dev, (ctx->player_index % 4), true);
     } else {
         SetSlotLED(ctx->device->dev, 0, false);
     }
 }

 static void SDLCALL SDL_PlayerLEDHintChanged(void *userdata, const char *name, const char *oldValue, const char *hint)
 {
     SDL_DriverXbox360W_Context *ctx = (SDL_DriverXbox360W_Context *)userdata;
     bool player_lights = SDL_GetStringBoolean(hint, true);

     if (player_lights != ctx->player_lights) {
         ctx->player_lights = player_lights;

         UpdateSlotLED(ctx);
         HIDAPI_UpdateDeviceProperties(ctx->device);
     }
 }

 static void UpdatePowerLevel(SDL_Joystick *joystick, Uint8 level)
 {
     int percent = (int)SDL_roundf((level / 255.0f) * 100.0f);
     SDL_SendJoystickPowerInfo(joystick, SDL_POWERSTATE_ON_BATTERY, percent);
 }

 static bool HIDAPI_DriverXbox360W_InitDevice(SDL_HIDAPI_Device *device)
 {
     SDL_DriverXbox360W_Context *ctx;

     // Requests controller presence information from the wireless dongle
     const Uint8 init_packet[] = { 0x08, 0x00, 0x0F, 0xC0, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 };

     HIDAPI_SetDeviceName(device, "Xbox 360 Wireless Controller");

     ctx = (SDL_DriverXbox360W_Context *)SDL_calloc(1, sizeof(*ctx));
     if (!ctx) {
         return false;
     }
     ctx->device = device;

     device->context = ctx;

     if (SDL_hid_write(device->dev, init_packet, sizeof(init_packet)) != sizeof(init_packet)) {
         SDL_SetError("Couldn't write init packet");
         return false;
     }

     device->type = SDL_GAMEPAD_TYPE_XBOX360;

     return true;
 }

 static int HIDAPI_DriverXbox360W_GetDevicePlayerIndex(SDL_HIDAPI_Device *device, SDL_JoystickID instance_id)
 {
     return -1;
 }

 static void HIDAPI_DriverXbox360W_SetDevicePlayerIndex(SDL_HIDAPI_Device *device, SDL_JoystickID instance_id, int player_index)
 {
     SDL_DriverXbox360W_Context *ctx = (SDL_DriverXbox360W_Context *)device->context;

     if (!ctx) {
         return;
     }

     ctx->player_index = player_index;

     UpdateSlotLED(ctx);
 }

 static bool HIDAPI_DriverXbox360W_OpenJoystick(SDL_HIDAPI_Device *device, SDL_Joystick *joystick)
 {
     SDL_DriverXbox360W_Context *ctx = (SDL_DriverXbox360W_Context *)device->context;

     SDL_AssertJoysticksLocked();

     SDL_zeroa(ctx->last_state);

     // Initialize player index (needed for setting LEDs)
     ctx->player_index = SDL_GetJoystickPlayerIndex(joystick);
     ctx->player_lights = SDL_GetHintBoolean(SDL_HINT_JOYSTICK_HIDAPI_XBOX_360_PLAYER_LED, true);
     UpdateSlotLED(ctx);

     SDL_AddHintCallback(SDL_HINT_JOYSTICK_HIDAPI_XBOX_360_PLAYER_LED,
                         SDL_PlayerLEDHintChanged, ctx);

     // Initialize the joystick capabilities
     joystick->nbuttons = 11;
     joystick->naxes = SDL_GAMEPAD_AXIS_COUNT;
     joystick->nhats = 1;
     joystick->connection_state = SDL_JOYSTICK_CONNECTION_WIRELESS;

     return true;
 }

 static bool HIDAPI_DriverXbox360W_RumbleJoystick(SDL_HIDAPI_Device *device, SDL_Joystick *joystick, Uint16 low_frequency_rumble, Uint16 high_frequency_rumble)
 {
     Uint8 rumble_packet[] = { 0x00, 0x01, 0x0f, 0xc0, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 };

     rumble_packet[5] = (low_frequency_rumble >> 8);
     rumble_packet[6] = (high_frequency_rumble >> 8);

     if (SDL_HIDAPI_SendRumble(device, rumble_packet, sizeof(rumble_packet)) != sizeof(rumble_packet)) {
         return SDL_SetError("Couldn't send rumble packet");
     }
     return true;
 }

 static bool HIDAPI_DriverXbox360W_RumbleJoystickTriggers(SDL_HIDAPI_Device *device, SDL_Joystick *joystick, Uint16 left_rumble, Uint16 right_rumble)
 {
     return SDL_Unsupported();
 }

 static Uint32 HIDAPI_DriverXbox360W_GetJoystickCapabilities(SDL_HIDAPI_Device *device, SDL_Joystick *joystick)
 {
     SDL_DriverXbox360W_Context *ctx = (SDL_DriverXbox360W_Context *)device->context;
     Uint32 result = SDL_JOYSTICK_CAP_RUMBLE;

     if (ctx->player_lights) {
         result |= SDL_JOYSTICK_CAP_PLAYER_LED;
     }
     return result;
 }

 static bool HIDAPI_DriverXbox360W_SetJoystickLED(SDL_HIDAPI_Device *device, SDL_Joystick *joystick, Uint8 red, Uint8 green, Uint8 blue)
 {
     return SDL_Unsupported();
 }

 static bool HIDAPI_DriverXbox360W_SendJoystickEffect(SDL_HIDAPI_Device *device, SDL_Joystick *joystick, const void *data, int size)
 {
     return SDL_Unsupported();
 }

 static bool HIDAPI_DriverXbox360W_SetJoystickSensorsEnabled(SDL_HIDAPI_Device *device, SDL_Joystick *joystick, bool enabled)
 {
     return SDL_Unsupported();
 }

 static void HIDAPI_DriverXbox360W_HandleStatePacket(SDL_Joystick *joystick, SDL_hid_device *dev, SDL_DriverXbox360W_Context *ctx, Uint8 *data, int size)
 {
     Sint16 axis;
     const bool invert_y_axes = true;
     Uint64 timestamp = SDL_GetTicksNS();

     if (ctx->last_state[2] != data[2]) {
         Uint8 hat = 0;

         if (data[2] & 0x01) {
             hat |= SDL_HAT_UP;
         }
         if (data[2] & 0x02) {
             hat |= SDL_HAT_DOWN;
         }
         if (data[2] & 0x04) {
             hat |= SDL_HAT_LEFT;
         }
         if (data[2] & 0x08) {
             hat |= SDL_HAT_RIGHT;
         }
         SDL_SendJoystickHat(timestamp, joystick, 0, hat);

         SDL_SendJoystickButton(timestamp, joystick, SDL_GAMEPAD_BUTTON_START, ((data[2] & 0x10) != 0));
         SDL_SendJoystickButton(timestamp, joystick, SDL_GAMEPAD_BUTTON_BACK, ((data[2] & 0x20) != 0));
         SDL_SendJoystickButton(timestamp, joystick, SDL_GAMEPAD_BUTTON_LEFT_STICK, ((data[2] & 0x40) != 0));
         SDL_SendJoystickButton(timestamp, joystick, SDL_GAMEPAD_BUTTON_RIGHT_STICK, ((data[2] & 0x80) != 0));
     }

     if (ctx->last_state[3] != data[3]) {
         SDL_SendJoystickButton(timestamp, joystick, SDL_GAMEPAD_BUTTON_LEFT_SHOULDER, ((data[3] & 0x01) != 0));
         SDL_SendJoystickButton(timestamp, joystick, SDL_GAMEPAD_BUTTON_RIGHT_SHOULDER, ((data[3] & 0x02) != 0));
         SDL_SendJoystickButton(timestamp, joystick, SDL_GAMEPAD_BUTTON_GUIDE, ((data[3] & 0x04) != 0));
         SDL_SendJoystickButton(timestamp, joystick, SDL_GAMEPAD_BUTTON_SOUTH, ((data[3] & 0x10) != 0));
         SDL_SendJoystickButton(timestamp, joystick, SDL_GAMEPAD_BUTTON_EAST, ((data[3] & 0x20) != 0));
         SDL_SendJoystickButton(timestamp, joystick, SDL_GAMEPAD_BUTTON_WEST, ((data[3] & 0x40) != 0));
         SDL_SendJoystickButton(timestamp, joystick, SDL_GAMEPAD_BUTTON_NORTH, ((data[3] & 0x80) != 0));
     }

     axis = ((int)data[4] * 257) - 32768;
     SDL_SendJoystickAxis(timestamp, joystick, SDL_GAMEPAD_AXIS_LEFT_TRIGGER, axis);
     axis = ((int)data[5] * 257) - 32768;
     SDL_SendJoystickAxis(timestamp, joystick, SDL_GAMEPAD_AXIS_RIGHT_TRIGGER, axis);
     axis = SDL_Swap16LE(*(Sint16 *)(&data[6]));
     SDL_SendJoystickAxis(timestamp, joystick, SDL_GAMEPAD_AXIS_LEFTX, axis);
     axis = SDL_Swap16LE(*(Sint16 *)(&data[8]));
     if (invert_y_axes) {
         axis = ~axis;
     }
     SDL_SendJoystickAxis(timestamp, joystick, SDL_GAMEPAD_AXIS_LEFTY, axis);
     axis = SDL_Swap16LE(*(Sint16 *)(&data[10]));
     SDL_SendJoystickAxis(timestamp, joystick, SDL_GAMEPAD_AXIS_RIGHTX, axis);
     axis = SDL_Swap16LE(*(Sint16 *)(&data[12]));
     if (invert_y_axes) {
         axis = ~axis;
     }
     SDL_SendJoystickAxis(timestamp, joystick, SDL_GAMEPAD_AXIS_RIGHTY, axis);

     SDL_memcpy(ctx->last_state, data, SDL_min(size, sizeof(ctx->last_state)));
 }

 static bool HIDAPI_DriverXbox360W_UpdateDevice(SDL_HIDAPI_Device *device)
 {
     SDL_DriverXbox360W_Context *ctx = (SDL_DriverXbox360W_Context *)device->context;
     SDL_Joystick *joystick = NULL;
     Uint8 data[USB_PACKET_LENGTH];
     int size;

     if (device->num_joysticks > 0) {
         joystick = SDL_GetJoystickFromID(device->joysticks[0]);
     }

     while ((size = SDL_hid_read_timeout(device->dev, data, sizeof(data), 0)) > 0) {
 #ifdef DEBUG_XBOX_PROTOCOL
         HIDAPI_DumpPacket("Xbox 360 wireless packet: size = %d", data, size);
 #endif
         if (size == 2 && data[0] == 0x08) {
             bool connected = (data[1] & 0x80) ? true : false;
 #ifdef DEBUG_JOYSTICK
             SDL_Log("Connected = %s", connected ? "TRUE" : "FALSE");
 #endif
             if (connected != ctx->connected) {
                 ctx->connected = connected;

                 if (connected) {
                     SDL_JoystickID joystickID;

                     HIDAPI_JoystickConnected(device, &joystickID);

                 } else if (device->num_joysticks > 0) {
                     HIDAPI_JoystickDisconnected(device, device->joysticks[0]);
                 }
             }
         } else if (size == 29 && data[0] == 0x00 && data[1] == 0x0f && data[2] == 0x00 && data[3] == 0xf0) {
             // Serial number is data[7-13]
 #ifdef DEBUG_JOYSTICK
             SDL_Log("Battery status (initial): %d", data[17]);
 #endif
             if (joystick) {
                 UpdatePowerLevel(joystick, data[17]);
             }
         } else if (size == 29 && data[0] == 0x00 && data[1] == 0x00 && data[2] == 0x00 && data[3] == 0x13) {
 #ifdef DEBUG_JOYSTICK
             SDL_Log("Battery status: %d", data[4]);
 #endif
             if (joystick) {
                 UpdatePowerLevel(joystick, data[4]);
             }
         } else if (size == 29 && data[0] == 0x00 && (data[1] & 0x01) == 0x01) {
             if (joystick) {
                 HIDAPI_DriverXbox360W_HandleStatePacket(joystick, device->dev, ctx, data + 4, size - 4);
             }
         }
     }

     if (size < 0 && device->num_joysticks > 0) {
         // Read error, device is disconnected
         HIDAPI_JoystickDisconnected(device, device->joysticks[0]);
     }
     return (size >= 0);
 }

 static void HIDAPI_DriverXbox360W_CloseJoystick(SDL_HIDAPI_Device *device, SDL_Joystick *joystick)
 {
     SDL_DriverXbox360W_Context *ctx = (SDL_DriverXbox360W_Context *)device->context;

     SDL_RemoveHintCallback(SDL_HINT_JOYSTICK_HIDAPI_XBOX_360_PLAYER_LED,
                         SDL_PlayerLEDHintChanged, ctx);
 }

 static void HIDAPI_DriverXbox360W_FreeDevice(SDL_HIDAPI_Device *device)
 {
 }

 SDL_HIDAPI_DeviceDriver SDL_HIDAPI_DriverXbox360W = {
     SDL_HINT_JOYSTICK_HIDAPI_XBOX_360_WIRELESS,
     true,
     HIDAPI_DriverXbox360W_RegisterHints,
     HIDAPI_DriverXbox360W_UnregisterHints,
     HIDAPI_DriverXbox360W_IsEnabled,
     HIDAPI_DriverXbox360W_IsSupportedDevice,
     HIDAPI_DriverXbox360W_InitDevice,
     HIDAPI_DriverXbox360W_GetDevicePlayerIndex,
     HIDAPI_DriverXbox360W_SetDevicePlayerIndex,
     HIDAPI_DriverXbox360W_UpdateDevice,
     HIDAPI_DriverXbox360W_OpenJoystick,
     HIDAPI_DriverXbox360W_RumbleJoystick,
     HIDAPI_DriverXbox360W_RumbleJoystickTriggers,
     HIDAPI_DriverXbox360W_GetJoystickCapabilities,
     HIDAPI_DriverXbox360W_SetJoystickLED,
     HIDAPI_DriverXbox360W_SendJoystickEffect,
     HIDAPI_DriverXbox360W_SetJoystickSensorsEnabled,
     HIDAPI_DriverXbox360W_CloseJoystick,
     HIDAPI_DriverXbox360W_FreeDevice,
 };

 #endif // SDL_JOYSTICK_HIDAPI_XBOX360

 #endif // SDL_JOYSTICK_HIDAPI
	/*
	Simple DirectMedia Layer
	Copyright (C) 1997-2025 Sam Lantinga <slouken@libsdl.org>

	This software is provided 'as-is', without any express or implied
	warranty. In no event will the authors be held liable for any damages
	arising from the use of this software.

	Permission is granted to anyone to use this software for any purpose,
	including commercial applications, and to alter it and redistribute it
	freely, subject to the following restrictions:

	1. The origin of this software must not be misrepresented; you must not
	claim that you wrote the original software. If you use this software
	in a product, an acknowledgment in the product documentation would be
	appreciated but is not required.
	2. Altered source versions must be plainly marked as such, and must not be
	misrepresented as being the original software.
	3. This notice may not be removed or altered from any source distribution.
	*/
	#include "SDL_internal.h"

	#ifdef SDL_JOYSTICK_HIDAPI

	#include "../../SDL_hints_c.h"
	#include "../SDL_sysjoystick.h"
	#include "SDL_hidapijoystick_c.h"
	#include "SDL_hidapi_rumble.h"

	#ifdef SDL_JOYSTICK_HIDAPI_XBOX360

	// Define this if you want to log all packets from the controller
	// #define DEBUG_XBOX_PROTOCOL

	typedef struct
	{
	SDL_HIDAPI_Device *device;
	bool connected;
	int player_index;
	bool player_lights;
	Uint8 last_state[USB_PACKET_LENGTH];
	} SDL_DriverXbox360W_Context;

	static void HIDAPI_DriverXbox360W_RegisterHints(SDL_HintCallback callback, void *userdata)
	{
	SDL_AddHintCallback(SDL_HINT_JOYSTICK_HIDAPI_XBOX, callback, userdata);
	SDL_AddHintCallback(SDL_HINT_JOYSTICK_HIDAPI_XBOX_360, callback, userdata);
	SDL_AddHintCallback(SDL_HINT_JOYSTICK_HIDAPI_XBOX_360_WIRELESS, callback, userdata);
	}

	static void HIDAPI_DriverXbox360W_UnregisterHints(SDL_HintCallback callback, void *userdata)
	{
	SDL_RemoveHintCallback(SDL_HINT_JOYSTICK_HIDAPI_XBOX, callback, userdata);
	SDL_RemoveHintCallback(SDL_HINT_JOYSTICK_HIDAPI_XBOX_360, callback, userdata);
	SDL_RemoveHintCallback(SDL_HINT_JOYSTICK_HIDAPI_XBOX_360_WIRELESS, callback, userdata);
	}

	static bool HIDAPI_DriverXbox360W_IsEnabled(void)
	{
	return SDL_GetHintBoolean(SDL_HINT_JOYSTICK_HIDAPI_XBOX_360_WIRELESS,
	SDL_GetHintBoolean(SDL_HINT_JOYSTICK_HIDAPI_XBOX_360, SDL_GetHintBoolean(SDL_HINT_JOYSTICK_HIDAPI_XBOX, SDL_GetHintBoolean(SDL_HINT_JOYSTICK_HIDAPI, SDL_HIDAPI_DEFAULT))));
	}

	static bool HIDAPI_DriverXbox360W_IsSupportedDevice(SDL_HIDAPI_Device device, const char name, SDL_GamepadType type, Uint16 vendor_id, Uint16 product_id, Uint16 version, int interface_number, int interface_class, int interface_subclass, int interface_protocol)
	{
	const int XB360W_IFACE_PROTOCOL = 129; // Wireless

	if ((vendor_id == USB_VENDOR_MICROSOFT && (product_id == USB_PRODUCT_XBOX360_WIRELESS_RECEIVER_THIRDPARTY2 \|\| product_id == USB_PRODUCT_XBOX360_WIRELESS_RECEIVER_THIRDPARTY1 \|\| product_id == USB_PRODUCT_XBOX360_WIRELESS_RECEIVER) && interface_protocol == 0) \|\|
	(type == SDL_GAMEPAD_TYPE_XBOX360 && interface_protocol == XB360W_IFACE_PROTOCOL)) {
	return true;
	}
	return false;
	}

	static bool SetSlotLED(SDL_hid_device *dev, Uint8 slot, bool on)
	{
	const bool blink = false;
	Uint8 mode = on ? ((blink ? 0x02 : 0x06) + slot) : 0;
	Uint8 led_packet[] = { 0x00, 0x00, 0x08, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 };

	led_packet[3] = 0x40 + (mode % 0x0e);
	if (SDL_hid_write(dev, led_packet, sizeof(led_packet)) != sizeof(led_packet)) {
	return false;
	}
	return true;
	}

	static void UpdateSlotLED(SDL_DriverXbox360W_Context *ctx)
	{
	if (ctx->player_lights && ctx->player_index >= 0) {
	SetSlotLED(ctx->device->dev, (ctx->player_index % 4), true);
	} else {
	SetSlotLED(ctx->device->dev, 0, false);
	}
	}

	static void SDLCALL SDL_PlayerLEDHintChanged(void userdata, const char name, const char oldValue, const char hint)
	{
	SDL_DriverXbox360W_Context ctx = (SDL_DriverXbox360W_Context )userdata;
	bool player_lights = SDL_GetStringBoolean(hint, true);

	if (player_lights != ctx->player_lights) {
	ctx->player_lights = player_lights;

	UpdateSlotLED(ctx);
	HIDAPI_UpdateDeviceProperties(ctx->device);
	}
	}

	static void UpdatePowerLevel(SDL_Joystick *joystick, Uint8 level)
	{
	int percent = (int)SDL_roundf((level / 255.0f) * 100.0f);
	SDL_SendJoystickPowerInfo(joystick, SDL_POWERSTATE_ON_BATTERY, percent);
	}

	static bool HIDAPI_DriverXbox360W_InitDevice(SDL_HIDAPI_Device *device)
	{
	SDL_DriverXbox360W_Context *ctx;

	// Requests controller presence information from the wireless dongle
	const Uint8 init_packet[] = { 0x08, 0x00, 0x0F, 0xC0, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 };

	HIDAPI_SetDeviceName(device, "Xbox 360 Wireless Controller");

	ctx = (SDL_DriverXbox360W_Context )SDL_calloc(1, sizeof(ctx));
	if (!ctx) {
	return false;
	}
	ctx->device = device;

	device->context = ctx;

	if (SDL_hid_write(device->dev, init_packet, sizeof(init_packet)) != sizeof(init_packet)) {
	SDL_SetError("Couldn't write init packet");
	return false;
	}

	device->type = SDL_GAMEPAD_TYPE_XBOX360;

	return true;
	}

	static int HIDAPI_DriverXbox360W_GetDevicePlayerIndex(SDL_HIDAPI_Device *device, SDL_JoystickID instance_id)
	{
	return -1;
	}

	static void HIDAPI_DriverXbox360W_SetDevicePlayerIndex(SDL_HIDAPI_Device *device, SDL_JoystickID instance_id, int player_index)
	{
	SDL_DriverXbox360W_Context ctx = (SDL_DriverXbox360W_Context )device->context;

	if (!ctx) {
	return;
	}

	ctx->player_index = player_index;

	UpdateSlotLED(ctx);
	}

	static bool HIDAPI_DriverXbox360W_OpenJoystick(SDL_HIDAPI_Device device, SDL_Joystick joystick)
	{
	SDL_DriverXbox360W_Context ctx = (SDL_DriverXbox360W_Context )device->context;

	SDL_AssertJoysticksLocked();

	SDL_zeroa(ctx->last_state);

	// Initialize player index (needed for setting LEDs)
	ctx->player_index = SDL_GetJoystickPlayerIndex(joystick);
	ctx->player_lights = SDL_GetHintBoolean(SDL_HINT_JOYSTICK_HIDAPI_XBOX_360_PLAYER_LED, true);
	UpdateSlotLED(ctx);

	SDL_AddHintCallback(SDL_HINT_JOYSTICK_HIDAPI_XBOX_360_PLAYER_LED,
	SDL_PlayerLEDHintChanged, ctx);

	// Initialize the joystick capabilities
	joystick->nbuttons = 11;
	joystick->naxes = SDL_GAMEPAD_AXIS_COUNT;
	joystick->nhats = 1;
	joystick->connection_state = SDL_JOYSTICK_CONNECTION_WIRELESS;

	return true;
	}

	static bool HIDAPI_DriverXbox360W_RumbleJoystick(SDL_HIDAPI_Device device, SDL_Joystick joystick, Uint16 low_frequency_rumble, Uint16 high_frequency_rumble)
	{
	Uint8 rumble_packet[] = { 0x00, 0x01, 0x0f, 0xc0, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 };

	rumble_packet[5] = (low_frequency_rumble >> 8);
	rumble_packet[6] = (high_frequency_rumble >> 8);

	if (SDL_HIDAPI_SendRumble(device, rumble_packet, sizeof(rumble_packet)) != sizeof(rumble_packet)) {
	return SDL_SetError("Couldn't send rumble packet");
	}
	return true;
	}

	static bool HIDAPI_DriverXbox360W_RumbleJoystickTriggers(SDL_HIDAPI_Device device, SDL_Joystick joystick, Uint16 left_rumble, Uint16 right_rumble)
	{
	return SDL_Unsupported();
	}

	static Uint32 HIDAPI_DriverXbox360W_GetJoystickCapabilities(SDL_HIDAPI_Device device, SDL_Joystick joystick)
	{
	SDL_DriverXbox360W_Context ctx = (SDL_DriverXbox360W_Context )device->context;
	Uint32 result = SDL_JOYSTICK_CAP_RUMBLE;

	if (ctx->player_lights) {
	result \|= SDL_JOYSTICK_CAP_PLAYER_LED;
	}
	return result;
	}

	static bool HIDAPI_DriverXbox360W_SetJoystickLED(SDL_HIDAPI_Device device, SDL_Joystick joystick, Uint8 red, Uint8 green, Uint8 blue)
	{
	return SDL_Unsupported();
	}

	static bool HIDAPI_DriverXbox360W_SendJoystickEffect(SDL_HIDAPI_Device device, SDL_Joystick joystick, const void *data, int size)
	{
	return SDL_Unsupported();
	}

	static bool HIDAPI_DriverXbox360W_SetJoystickSensorsEnabled(SDL_HIDAPI_Device device, SDL_Joystick joystick, bool enabled)
	{
	return SDL_Unsupported();
	}

	static void HIDAPI_DriverXbox360W_HandleStatePacket(SDL_Joystick joystick, SDL_hid_device dev, SDL_DriverXbox360W_Context ctx, Uint8 data, int size)
	{
	Sint16 axis;
	const bool invert_y_axes = true;
	Uint64 timestamp = SDL_GetTicksNS();

	if (ctx->last_state[2] != data[2]) {
	Uint8 hat = 0;

	if (data[2] & 0x01) {
	hat \|= SDL_HAT_UP;
	}
	if (data[2] & 0x02) {
	hat \|= SDL_HAT_DOWN;
	}
	if (data[2] & 0x04) {
	hat \|= SDL_HAT_LEFT;
	}
	if (data[2] & 0x08) {
	hat \|= SDL_HAT_RIGHT;
	}
	SDL_SendJoystickHat(timestamp, joystick, 0, hat);

	SDL_SendJoystickButton(timestamp, joystick, SDL_GAMEPAD_BUTTON_START, ((data[2] & 0x10) != 0));
	SDL_SendJoystickButton(timestamp, joystick, SDL_GAMEPAD_BUTTON_BACK, ((data[2] & 0x20) != 0));
	SDL_SendJoystickButton(timestamp, joystick, SDL_GAMEPAD_BUTTON_LEFT_STICK, ((data[2] & 0x40) != 0));
	SDL_SendJoystickButton(timestamp, joystick, SDL_GAMEPAD_BUTTON_RIGHT_STICK, ((data[2] & 0x80) != 0));
	}

	if (ctx->last_state[3] != data[3]) {
	SDL_SendJoystickButton(timestamp, joystick, SDL_GAMEPAD_BUTTON_LEFT_SHOULDER, ((data[3] & 0x01) != 0));
	SDL_SendJoystickButton(timestamp, joystick, SDL_GAMEPAD_BUTTON_RIGHT_SHOULDER, ((data[3] & 0x02) != 0));
	SDL_SendJoystickButton(timestamp, joystick, SDL_GAMEPAD_BUTTON_GUIDE, ((data[3] & 0x04) != 0));
	SDL_SendJoystickButton(timestamp, joystick, SDL_GAMEPAD_BUTTON_SOUTH, ((data[3] & 0x10) != 0));
	SDL_SendJoystickButton(timestamp, joystick, SDL_GAMEPAD_BUTTON_EAST, ((data[3] & 0x20) != 0));
	SDL_SendJoystickButton(timestamp, joystick, SDL_GAMEPAD_BUTTON_WEST, ((data[3] & 0x40) != 0));
	SDL_SendJoystickButton(timestamp, joystick, SDL_GAMEPAD_BUTTON_NORTH, ((data[3] & 0x80) != 0));
	}

	axis = ((int)data[4] * 257) - 32768;
	SDL_SendJoystickAxis(timestamp, joystick, SDL_GAMEPAD_AXIS_LEFT_TRIGGER, axis);
	axis = ((int)data[5] * 257) - 32768;
	SDL_SendJoystickAxis(timestamp, joystick, SDL_GAMEPAD_AXIS_RIGHT_TRIGGER, axis);
	axis = SDL_Swap16LE((Sint16 )(&data[6]));
	SDL_SendJoystickAxis(timestamp, joystick, SDL_GAMEPAD_AXIS_LEFTX, axis);
	axis = SDL_Swap16LE((Sint16 )(&data[8]));
	if (invert_y_axes) {
	axis = ~axis;
	}
	SDL_SendJoystickAxis(timestamp, joystick, SDL_GAMEPAD_AXIS_LEFTY, axis);
	axis = SDL_Swap16LE((Sint16 )(&data[10]));
	SDL_SendJoystickAxis(timestamp, joystick, SDL_GAMEPAD_AXIS_RIGHTX, axis);
	axis = SDL_Swap16LE((Sint16 )(&data[12]));
	if (invert_y_axes) {
	axis = ~axis;
	}
	SDL_SendJoystickAxis(timestamp, joystick, SDL_GAMEPAD_AXIS_RIGHTY, axis);

	SDL_memcpy(ctx->last_state, data, SDL_min(size, sizeof(ctx->last_state)));
	}

	static bool HIDAPI_DriverXbox360W_UpdateDevice(SDL_HIDAPI_Device *device)
	{
	SDL_DriverXbox360W_Context ctx = (SDL_DriverXbox360W_Context )device->context;
	SDL_Joystick *joystick = NULL;
	Uint8 data[USB_PACKET_LENGTH];
	int size;

	if (device->num_joysticks > 0) {
	joystick = SDL_GetJoystickFromID(device->joysticks[0]);
	}

	while ((size = SDL_hid_read_timeout(device->dev, data, sizeof(data), 0)) > 0) {
	#ifdef DEBUG_XBOX_PROTOCOL
	HIDAPI_DumpPacket("Xbox 360 wireless packet: size = %d", data, size);
	#endif
	if (size == 2 && data[0] == 0x08) {
	bool connected = (data[1] & 0x80) ? true : false;
	#ifdef DEBUG_JOYSTICK
	SDL_Log("Connected = %s", connected ? "TRUE" : "FALSE");
	#endif
	if (connected != ctx->connected) {
	ctx->connected = connected;

	if (connected) {
	SDL_JoystickID joystickID;

	HIDAPI_JoystickConnected(device, &joystickID);

	} else if (device->num_joysticks > 0) {
	HIDAPI_JoystickDisconnected(device, device->joysticks[0]);
	}
	}
	} else if (size == 29 && data[0] == 0x00 && data[1] == 0x0f && data[2] == 0x00 && data[3] == 0xf0) {
	// Serial number is data[7-13]
	#ifdef DEBUG_JOYSTICK
	SDL_Log("Battery status (initial): %d", data[17]);
	#endif
	if (joystick) {
	UpdatePowerLevel(joystick, data[17]);
	}
	} else if (size == 29 && data[0] == 0x00 && data[1] == 0x00 && data[2] == 0x00 && data[3] == 0x13) {
	#ifdef DEBUG_JOYSTICK
	SDL_Log("Battery status: %d", data[4]);
	#endif
	if (joystick) {
	UpdatePowerLevel(joystick, data[4]);
	}
	} else if (size == 29 && data[0] == 0x00 && (data[1] & 0x01) == 0x01) {
	if (joystick) {
	HIDAPI_DriverXbox360W_HandleStatePacket(joystick, device->dev, ctx, data + 4, size - 4);
	}
	}
	}

	if (size < 0 && device->num_joysticks > 0) {
	// Read error, device is disconnected
	HIDAPI_JoystickDisconnected(device, device->joysticks[0]);
	}
	return (size >= 0);
	}

	static void HIDAPI_DriverXbox360W_CloseJoystick(SDL_HIDAPI_Device device, SDL_Joystick joystick)
	{
	SDL_DriverXbox360W_Context ctx = (SDL_DriverXbox360W_Context )device->context;

	SDL_RemoveHintCallback(SDL_HINT_JOYSTICK_HIDAPI_XBOX_360_PLAYER_LED,
	SDL_PlayerLEDHintChanged, ctx);
	}

	static void HIDAPI_DriverXbox360W_FreeDevice(SDL_HIDAPI_Device *device)
	{
	}

	SDL_HIDAPI_DeviceDriver SDL_HIDAPI_DriverXbox360W = {
	SDL_HINT_JOYSTICK_HIDAPI_XBOX_360_WIRELESS,
	true,
	HIDAPI_DriverXbox360W_RegisterHints,
	HIDAPI_DriverXbox360W_UnregisterHints,
	HIDAPI_DriverXbox360W_IsEnabled,
	HIDAPI_DriverXbox360W_IsSupportedDevice,
	HIDAPI_DriverXbox360W_InitDevice,
	HIDAPI_DriverXbox360W_GetDevicePlayerIndex,
	HIDAPI_DriverXbox360W_SetDevicePlayerIndex,
	HIDAPI_DriverXbox360W_UpdateDevice,
	HIDAPI_DriverXbox360W_OpenJoystick,
	HIDAPI_DriverXbox360W_RumbleJoystick,
	HIDAPI_DriverXbox360W_RumbleJoystickTriggers,
	HIDAPI_DriverXbox360W_GetJoystickCapabilities,
	HIDAPI_DriverXbox360W_SetJoystickLED,
	HIDAPI_DriverXbox360W_SendJoystickEffect,
	HIDAPI_DriverXbox360W_SetJoystickSensorsEnabled,
	HIDAPI_DriverXbox360W_CloseJoystick,
	HIDAPI_DriverXbox360W_FreeDevice,
	};

	#endif // SDL_JOYSTICK_HIDAPI_XBOX360

	#endif // SDL_JOYSTICK_HIDAPI