src/joystick/hidapi/SDL_hidapi_xbox360w.c - third_party/sdl - Git at Google

 /*
   Simple DirectMedia Layer
   Copyright (C) 1997-2021 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.h"
 #include "SDL_events.h"
 #include "SDL_timer.h"
 #include "SDL_joystick.h"
 #include "SDL_gamecontroller.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_bool connected;
     Uint8 last_state[USB_PACKET_LENGTH];
 } SDL_DriverXbox360W_Context;


 static SDL_bool
 HIDAPI_DriverXbox360W_IsSupportedDevice(const char *name, SDL_GameControllerType 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 == 0x0291 || product_id == 0x02a9 || product_id == 0x0719) && interface_protocol == 0) ||
         (type == SDL_CONTROLLER_TYPE_XBOX360 && interface_protocol == XB360W_IFACE_PROTOCOL)) {
         return SDL_TRUE;
     }
     return SDL_FALSE;
 }

 static const char *
 HIDAPI_DriverXbox360W_GetDeviceName(Uint16 vendor_id, Uint16 product_id)
 {
     return "Xbox 360 Wireless Controller";
 }

 static SDL_bool SetSlotLED(hid_device *dev, Uint8 slot)
 {
     const SDL_bool blink = SDL_FALSE;
     Uint8 mode = (blink ? 0x02 : 0x06) + slot;
     const Uint8 led_packet[] = { 0x00, 0x00, 0x08, (0x40 + (mode % 0x0e)), 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 };

     if (hid_write(dev, led_packet, sizeof(led_packet)) != sizeof(led_packet)) {
         return SDL_FALSE;
     }
     return SDL_TRUE;
 }

 static void
 UpdatePowerLevel(SDL_Joystick *joystick, Uint8 level)
 {
     float normalized_level = (float)level / 255.0f;

     if (normalized_level <= 0.05f) {
         joystick->epowerlevel = SDL_JOYSTICK_POWER_EMPTY;
     } else if (normalized_level <= 0.20f) {
         joystick->epowerlevel = SDL_JOYSTICK_POWER_LOW;
     } else if (normalized_level <= 0.70f) {
         joystick->epowerlevel = SDL_JOYSTICK_POWER_MEDIUM;
     } else {
         joystick->epowerlevel = SDL_JOYSTICK_POWER_FULL;
     }
 }

 static SDL_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 };

     ctx = (SDL_DriverXbox360W_Context *)SDL_calloc(1, sizeof(*ctx));
     if (!ctx) {
         SDL_OutOfMemory();
         return SDL_FALSE;
     }

     device->dev = hid_open_path(device->path, 0);
     if (!device->dev) {
         SDL_free(ctx);
         SDL_SetError("Couldn't open %s", device->path);
         return SDL_FALSE;
     }
     device->context = ctx;

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

     return SDL_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)
 {
     if (!device->dev) {
         return;
     }
     if (player_index >= 0) {
         SetSlotLED(device->dev, (player_index % 4));
     }
 }

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

     SDL_zeroa(ctx->last_state);

     /* Initialize the joystick capabilities */
     joystick->nbuttons = 15;
     joystick->naxes = SDL_CONTROLLER_AXIS_MAX;
     joystick->epowerlevel = SDL_JOYSTICK_POWER_UNKNOWN;

     return SDL_TRUE;
 }

 static int
 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 0;
 }

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

 static SDL_bool
 HIDAPI_DriverXbox360W_HasJoystickLED(SDL_HIDAPI_Device *device, SDL_Joystick *joystick)
 {
     /* Doesn't have an RGB LED, so don't return true here */
     return SDL_FALSE;
 }

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

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

 static void
 HIDAPI_DriverXbox360W_HandleStatePacket(SDL_Joystick *joystick, hid_device *dev, SDL_DriverXbox360W_Context *ctx, Uint8 *data, int size)
 {
     Sint16 axis;
     const SDL_bool invert_y_axes = SDL_TRUE;

     if (ctx->last_state[2] != data[2]) {
         SDL_PrivateJoystickButton(joystick, SDL_CONTROLLER_BUTTON_DPAD_UP, (data[2] & 0x01) ? SDL_PRESSED : SDL_RELEASED);
         SDL_PrivateJoystickButton(joystick, SDL_CONTROLLER_BUTTON_DPAD_DOWN, (data[2] & 0x02) ? SDL_PRESSED : SDL_RELEASED);
         SDL_PrivateJoystickButton(joystick, SDL_CONTROLLER_BUTTON_DPAD_LEFT, (data[2] & 0x04) ? SDL_PRESSED : SDL_RELEASED);
         SDL_PrivateJoystickButton(joystick, SDL_CONTROLLER_BUTTON_DPAD_RIGHT, (data[2] & 0x08) ? SDL_PRESSED : SDL_RELEASED);
         SDL_PrivateJoystickButton(joystick, SDL_CONTROLLER_BUTTON_START, (data[2] & 0x10) ? SDL_PRESSED : SDL_RELEASED);
         SDL_PrivateJoystickButton(joystick, SDL_CONTROLLER_BUTTON_BACK, (data[2] & 0x20) ? SDL_PRESSED : SDL_RELEASED);
         SDL_PrivateJoystickButton(joystick, SDL_CONTROLLER_BUTTON_LEFTSTICK, (data[2] & 0x40) ? SDL_PRESSED : SDL_RELEASED);
         SDL_PrivateJoystickButton(joystick, SDL_CONTROLLER_BUTTON_RIGHTSTICK, (data[2] & 0x80) ? SDL_PRESSED : SDL_RELEASED);
     }

     if (ctx->last_state[3] != data[3]) {
         SDL_PrivateJoystickButton(joystick, SDL_CONTROLLER_BUTTON_LEFTSHOULDER, (data[3] & 0x01) ? SDL_PRESSED : SDL_RELEASED);
         SDL_PrivateJoystickButton(joystick, SDL_CONTROLLER_BUTTON_RIGHTSHOULDER, (data[3] & 0x02) ? SDL_PRESSED : SDL_RELEASED);
         SDL_PrivateJoystickButton(joystick, SDL_CONTROLLER_BUTTON_GUIDE, (data[3] & 0x04) ? SDL_PRESSED : SDL_RELEASED);
         SDL_PrivateJoystickButton(joystick, SDL_CONTROLLER_BUTTON_A, (data[3] & 0x10) ? SDL_PRESSED : SDL_RELEASED);
         SDL_PrivateJoystickButton(joystick, SDL_CONTROLLER_BUTTON_B, (data[3] & 0x20) ? SDL_PRESSED : SDL_RELEASED);
         SDL_PrivateJoystickButton(joystick, SDL_CONTROLLER_BUTTON_X, (data[3] & 0x40) ? SDL_PRESSED : SDL_RELEASED);
         SDL_PrivateJoystickButton(joystick, SDL_CONTROLLER_BUTTON_Y, (data[3] & 0x80) ? SDL_PRESSED : SDL_RELEASED);
     }

     axis = ((int)data[4] * 257) - 32768;
     SDL_PrivateJoystickAxis(joystick, SDL_CONTROLLER_AXIS_TRIGGERLEFT, axis);
     axis = ((int)data[5] * 257) - 32768;
     SDL_PrivateJoystickAxis(joystick, SDL_CONTROLLER_AXIS_TRIGGERRIGHT, axis);
     axis = *(Sint16*)(&data[6]);
     SDL_PrivateJoystickAxis(joystick, SDL_CONTROLLER_AXIS_LEFTX, axis);
     axis = *(Sint16*)(&data[8]);
     if (invert_y_axes) {
         axis = ~axis;
     }
     SDL_PrivateJoystickAxis(joystick, SDL_CONTROLLER_AXIS_LEFTY, axis);
     axis = *(Sint16*)(&data[10]);
     SDL_PrivateJoystickAxis(joystick, SDL_CONTROLLER_AXIS_RIGHTX, axis);
     axis = *(Sint16*)(&data[12]);
     if (invert_y_axes) {
         axis = ~axis;
     }
     SDL_PrivateJoystickAxis(joystick, SDL_CONTROLLER_AXIS_RIGHTY, axis);

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

 static SDL_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_JoystickFromInstanceID(device->joysticks[0]);
     }

     while ((size = 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) {
             SDL_bool connected = (data[1] & 0x80) ? SDL_TRUE : SDL_FALSE;
 #ifdef DEBUG_JOYSTICK
             SDL_Log("Connected = %s\n", 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\n", 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\n", 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 (joystick) {
         if (size < 0) {
             /* Read error, device is disconnected */
             HIDAPI_JoystickDisconnected(device, joystick->instance_id);
         }
     }
     return (size >= 0);
 }

 static void
 HIDAPI_DriverXbox360W_CloseJoystick(SDL_HIDAPI_Device *device, SDL_Joystick *joystick)
 {
 }

 static void
 HIDAPI_DriverXbox360W_FreeDevice(SDL_HIDAPI_Device *device)
 {
     SDL_LockMutex(device->dev_lock);
     {
         hid_close(device->dev);
         device->dev = NULL;

         SDL_free(device->context);
         device->context = NULL;
     }
     SDL_UnlockMutex(device->dev_lock);
 }

 SDL_HIDAPI_DeviceDriver SDL_HIDAPI_DriverXbox360W =
 {
     SDL_HINT_JOYSTICK_HIDAPI_XBOX,
     SDL_TRUE,
     HIDAPI_DriverXbox360W_IsSupportedDevice,
     HIDAPI_DriverXbox360W_GetDeviceName,
     HIDAPI_DriverXbox360W_InitDevice,
     HIDAPI_DriverXbox360W_GetDevicePlayerIndex,
     HIDAPI_DriverXbox360W_SetDevicePlayerIndex,
     HIDAPI_DriverXbox360W_UpdateDevice,
     HIDAPI_DriverXbox360W_OpenJoystick,
     HIDAPI_DriverXbox360W_RumbleJoystick,
     HIDAPI_DriverXbox360W_RumbleJoystickTriggers,
     HIDAPI_DriverXbox360W_HasJoystickLED,
     HIDAPI_DriverXbox360W_SetJoystickLED,
     HIDAPI_DriverXbox360W_SetJoystickSensorsEnabled,
     HIDAPI_DriverXbox360W_CloseJoystick,
     HIDAPI_DriverXbox360W_FreeDevice,
 };

 #endif /* SDL_JOYSTICK_HIDAPI_XBOX360 */

 #endif /* SDL_JOYSTICK_HIDAPI */

 /* vi: set ts=4 sw=4 expandtab: */
	/*
	Simple DirectMedia Layer
	Copyright (C) 1997-2021 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.h"
	#include "SDL_events.h"
	#include "SDL_timer.h"
	#include "SDL_joystick.h"
	#include "SDL_gamecontroller.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_bool connected;
	Uint8 last_state[USB_PACKET_LENGTH];
	} SDL_DriverXbox360W_Context;


	static SDL_bool
	HIDAPI_DriverXbox360W_IsSupportedDevice(const char *name, SDL_GameControllerType 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 == 0x0291 \|\| product_id == 0x02a9 \|\| product_id == 0x0719) && interface_protocol == 0) \|\|
	(type == SDL_CONTROLLER_TYPE_XBOX360 && interface_protocol == XB360W_IFACE_PROTOCOL)) {
	return SDL_TRUE;
	}
	return SDL_FALSE;
	}

	static const char *
	HIDAPI_DriverXbox360W_GetDeviceName(Uint16 vendor_id, Uint16 product_id)
	{
	return "Xbox 360 Wireless Controller";
	}

	static SDL_bool SetSlotLED(hid_device *dev, Uint8 slot)
	{
	const SDL_bool blink = SDL_FALSE;
	Uint8 mode = (blink ? 0x02 : 0x06) + slot;
	const Uint8 led_packet[] = { 0x00, 0x00, 0x08, (0x40 + (mode % 0x0e)), 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 };

	if (hid_write(dev, led_packet, sizeof(led_packet)) != sizeof(led_packet)) {
	return SDL_FALSE;
	}
	return SDL_TRUE;
	}

	static void
	UpdatePowerLevel(SDL_Joystick *joystick, Uint8 level)
	{
	float normalized_level = (float)level / 255.0f;

	if (normalized_level <= 0.05f) {
	joystick->epowerlevel = SDL_JOYSTICK_POWER_EMPTY;
	} else if (normalized_level <= 0.20f) {
	joystick->epowerlevel = SDL_JOYSTICK_POWER_LOW;
	} else if (normalized_level <= 0.70f) {
	joystick->epowerlevel = SDL_JOYSTICK_POWER_MEDIUM;
	} else {
	joystick->epowerlevel = SDL_JOYSTICK_POWER_FULL;
	}
	}

	static SDL_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 };

	ctx = (SDL_DriverXbox360W_Context )SDL_calloc(1, sizeof(ctx));
	if (!ctx) {
	SDL_OutOfMemory();
	return SDL_FALSE;
	}

	device->dev = hid_open_path(device->path, 0);
	if (!device->dev) {
	SDL_free(ctx);
	SDL_SetError("Couldn't open %s", device->path);
	return SDL_FALSE;
	}
	device->context = ctx;

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

	return SDL_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)
	{
	if (!device->dev) {
	return;
	}
	if (player_index >= 0) {
	SetSlotLED(device->dev, (player_index % 4));
	}
	}

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

	SDL_zeroa(ctx->last_state);

	/* Initialize the joystick capabilities */
	joystick->nbuttons = 15;
	joystick->naxes = SDL_CONTROLLER_AXIS_MAX;
	joystick->epowerlevel = SDL_JOYSTICK_POWER_UNKNOWN;

	return SDL_TRUE;
	}

	static int
	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 0;
	}

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

	static SDL_bool
	HIDAPI_DriverXbox360W_HasJoystickLED(SDL_HIDAPI_Device device, SDL_Joystick joystick)
	{
	/* Doesn't have an RGB LED, so don't return true here */
	return SDL_FALSE;
	}

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

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

	static void
	HIDAPI_DriverXbox360W_HandleStatePacket(SDL_Joystick joystick, hid_device dev, SDL_DriverXbox360W_Context ctx, Uint8 data, int size)
	{
	Sint16 axis;
	const SDL_bool invert_y_axes = SDL_TRUE;

	if (ctx->last_state[2] != data[2]) {
	SDL_PrivateJoystickButton(joystick, SDL_CONTROLLER_BUTTON_DPAD_UP, (data[2] & 0x01) ? SDL_PRESSED : SDL_RELEASED);
	SDL_PrivateJoystickButton(joystick, SDL_CONTROLLER_BUTTON_DPAD_DOWN, (data[2] & 0x02) ? SDL_PRESSED : SDL_RELEASED);
	SDL_PrivateJoystickButton(joystick, SDL_CONTROLLER_BUTTON_DPAD_LEFT, (data[2] & 0x04) ? SDL_PRESSED : SDL_RELEASED);
	SDL_PrivateJoystickButton(joystick, SDL_CONTROLLER_BUTTON_DPAD_RIGHT, (data[2] & 0x08) ? SDL_PRESSED : SDL_RELEASED);
	SDL_PrivateJoystickButton(joystick, SDL_CONTROLLER_BUTTON_START, (data[2] & 0x10) ? SDL_PRESSED : SDL_RELEASED);
	SDL_PrivateJoystickButton(joystick, SDL_CONTROLLER_BUTTON_BACK, (data[2] & 0x20) ? SDL_PRESSED : SDL_RELEASED);
	SDL_PrivateJoystickButton(joystick, SDL_CONTROLLER_BUTTON_LEFTSTICK, (data[2] & 0x40) ? SDL_PRESSED : SDL_RELEASED);
	SDL_PrivateJoystickButton(joystick, SDL_CONTROLLER_BUTTON_RIGHTSTICK, (data[2] & 0x80) ? SDL_PRESSED : SDL_RELEASED);
	}

	if (ctx->last_state[3] != data[3]) {
	SDL_PrivateJoystickButton(joystick, SDL_CONTROLLER_BUTTON_LEFTSHOULDER, (data[3] & 0x01) ? SDL_PRESSED : SDL_RELEASED);
	SDL_PrivateJoystickButton(joystick, SDL_CONTROLLER_BUTTON_RIGHTSHOULDER, (data[3] & 0x02) ? SDL_PRESSED : SDL_RELEASED);
	SDL_PrivateJoystickButton(joystick, SDL_CONTROLLER_BUTTON_GUIDE, (data[3] & 0x04) ? SDL_PRESSED : SDL_RELEASED);
	SDL_PrivateJoystickButton(joystick, SDL_CONTROLLER_BUTTON_A, (data[3] & 0x10) ? SDL_PRESSED : SDL_RELEASED);
	SDL_PrivateJoystickButton(joystick, SDL_CONTROLLER_BUTTON_B, (data[3] & 0x20) ? SDL_PRESSED : SDL_RELEASED);
	SDL_PrivateJoystickButton(joystick, SDL_CONTROLLER_BUTTON_X, (data[3] & 0x40) ? SDL_PRESSED : SDL_RELEASED);
	SDL_PrivateJoystickButton(joystick, SDL_CONTROLLER_BUTTON_Y, (data[3] & 0x80) ? SDL_PRESSED : SDL_RELEASED);
	}

	axis = ((int)data[4] * 257) - 32768;
	SDL_PrivateJoystickAxis(joystick, SDL_CONTROLLER_AXIS_TRIGGERLEFT, axis);
	axis = ((int)data[5] * 257) - 32768;
	SDL_PrivateJoystickAxis(joystick, SDL_CONTROLLER_AXIS_TRIGGERRIGHT, axis);
	axis = (Sint16)(&data[6]);
	SDL_PrivateJoystickAxis(joystick, SDL_CONTROLLER_AXIS_LEFTX, axis);
	axis = (Sint16)(&data[8]);
	if (invert_y_axes) {
	axis = ~axis;
	}
	SDL_PrivateJoystickAxis(joystick, SDL_CONTROLLER_AXIS_LEFTY, axis);
	axis = (Sint16)(&data[10]);
	SDL_PrivateJoystickAxis(joystick, SDL_CONTROLLER_AXIS_RIGHTX, axis);
	axis = (Sint16)(&data[12]);
	if (invert_y_axes) {
	axis = ~axis;
	}
	SDL_PrivateJoystickAxis(joystick, SDL_CONTROLLER_AXIS_RIGHTY, axis);

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

	static SDL_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_JoystickFromInstanceID(device->joysticks[0]);
	}

	while ((size = 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) {
	SDL_bool connected = (data[1] & 0x80) ? SDL_TRUE : SDL_FALSE;
	#ifdef DEBUG_JOYSTICK
	SDL_Log("Connected = %s\n", 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\n", 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\n", 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 (joystick) {
	if (size < 0) {
	/* Read error, device is disconnected */
	HIDAPI_JoystickDisconnected(device, joystick->instance_id);
	}
	}
	return (size >= 0);
	}

	static void
	HIDAPI_DriverXbox360W_CloseJoystick(SDL_HIDAPI_Device device, SDL_Joystick joystick)
	{
	}

	static void
	HIDAPI_DriverXbox360W_FreeDevice(SDL_HIDAPI_Device *device)
	{
	SDL_LockMutex(device->dev_lock);
	{
	hid_close(device->dev);
	device->dev = NULL;

	SDL_free(device->context);
	device->context = NULL;
	}
	SDL_UnlockMutex(device->dev_lock);
	}

	SDL_HIDAPI_DeviceDriver SDL_HIDAPI_DriverXbox360W =
	{
	SDL_HINT_JOYSTICK_HIDAPI_XBOX,
	SDL_TRUE,
	HIDAPI_DriverXbox360W_IsSupportedDevice,
	HIDAPI_DriverXbox360W_GetDeviceName,
	HIDAPI_DriverXbox360W_InitDevice,
	HIDAPI_DriverXbox360W_GetDevicePlayerIndex,
	HIDAPI_DriverXbox360W_SetDevicePlayerIndex,
	HIDAPI_DriverXbox360W_UpdateDevice,
	HIDAPI_DriverXbox360W_OpenJoystick,
	HIDAPI_DriverXbox360W_RumbleJoystick,
	HIDAPI_DriverXbox360W_RumbleJoystickTriggers,
	HIDAPI_DriverXbox360W_HasJoystickLED,
	HIDAPI_DriverXbox360W_SetJoystickLED,
	HIDAPI_DriverXbox360W_SetJoystickSensorsEnabled,
	HIDAPI_DriverXbox360W_CloseJoystick,
	HIDAPI_DriverXbox360W_FreeDevice,
	};

	#endif /* SDL_JOYSTICK_HIDAPI_XBOX360 */

	#endif /* SDL_JOYSTICK_HIDAPI */

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