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/* Copyright (C) 2012 Kristian Lauszus, TKJ Electronics. All rights reserved.

 This software may be distributed and modified under the terms of the GNU
 General Public License version 2 (GPL2) as published by the Free Software
 Foundation and appearing in the file GPL2.TXT included in the packaging of
 this file. Please note that GPL2 Section 2[b] requires that all works based
 on this software must also be made publicly available under the terms of
 the GPL2 ("Copyleft").

 Contact information
 -------------------

 Kristian Lauszus, TKJ Electronics
 Web      :  http://www.tkjelectronics.com
 e-mail   :  kristianl@tkjelectronics.com
 */

#ifndef _xboxusb_h_
#define _xboxusb_h_

#include "Usb.h"
#include "hid.h"
#include "xboxEnums.h"

/* Data Xbox 360 taken from descriptors */
#define EP_MAXPKTSIZE       32 // max size for data via USB

/* Names we give to the 3 Xbox360 pipes */
#define XBOX_CONTROL_PIPE    0
#define XBOX_INPUT_PIPE      1
#define XBOX_OUTPUT_PIPE     2

// PID and VID of the different devices
#define XBOX_VID                                0x045E // Microsoft Corporation
#define MADCATZ_VID                             0x1BAD // For unofficial Mad Catz controllers
#define JOYTECH_VID                             0x162E // For unofficial Joytech controllers
#define GAMESTOP_VID                            0x0E6F // Gamestop controller

#define XBOX_WIRED_PID                          0x028E // Microsoft 360 Wired controller
#define XBOX_WIRELESS_PID                       0x028F // Wireless controller only support charging
#define XBOX_WIRELESS_RECEIVER_PID              0x0719 // Microsoft Wireless Gaming Receiver
#define XBOX_WIRELESS_RECEIVER_THIRD_PARTY_PID  0x0291 // Third party Wireless Gaming Receiver
#define MADCATZ_WIRED_PID                       0xF016 // Mad Catz wired controller
#define JOYTECH_WIRED_PID                       0xBEEF // For Joytech wired controller
#define GAMESTOP_WIRED_PID                      0x0401 // Gamestop wired controller
#define AFTERGLOW_WIRED_PID                     0x0213 // Afterglow wired controller - it uses the same VID as a Gamestop controller

#define XBOX_REPORT_BUFFER_SIZE 14 // Size of the input report buffer

#define XBOX_MAX_ENDPOINTS   3

/** This class implements support for a Xbox wired controller via USB. */
class XBOXUSB : public USBDeviceConfig {
public:
        /**
         * Constructor for the XBOXUSB class.
         * @param  pUsb   Pointer to USB class instance.
         */
        XBOXUSB(USB *pUsb);

        /** @name USBDeviceConfig implementation */
        /**
         * Initialize the Xbox Controller.
         * @param  parent   Hub number.
         * @param  port     Port number on the hub.
         * @param  lowspeed Speed of the device.
         * @return          0 on success.
         */
        uint8_t Init(uint8_t parent, uint8_t port, bool lowspeed);
        /**
         * Release the USB device.
         * @return 0 on success.
         */
        uint8_t Release();
        /**
         * Poll the USB Input endpoins and run the state machines.
         * @return 0 on success.
         */
        uint8_t Poll();

        /**
         * Get the device address.
         * @return The device address.
         */
        virtual uint8_t GetAddress() {
                return bAddress;
        };

        /**
         * Used to check if the controller has been initialized.
         * @return True if it's ready.
         */
        virtual bool isReady() {
                return bPollEnable;
        };

        /**
         * Used by the USB core to check what this driver support.
         * @param  vid The device's VID.
         * @param  pid The device's PID.
         * @return     Returns true if the device's VID and PID matches this driver.
         */
        virtual bool VIDPIDOK(uint16_t vid, uint16_t pid) {
                return ((vid == XBOX_VID || vid == MADCATZ_VID || vid == JOYTECH_VID || vid == GAMESTOP_VID) && (pid == XBOX_WIRED_PID || pid == MADCATZ_WIRED_PID || pid == GAMESTOP_WIRED_PID || pid == AFTERGLOW_WIRED_PID || pid == JOYTECH_WIRED_PID));
        };
        /**@}*/

        /** @name Xbox Controller functions */
        /**
         * getButtonPress(ButtonEnum b) will return true as long as the button is held down.
         *
         * While getButtonClick(ButtonEnum b) will only return it once.
         *
         * So you instance if you need to increase a variable once you would use getButtonClick(ButtonEnum b),
         * but if you need to drive a robot forward you would use getButtonPress(ButtonEnum b).
         * @param  b          ::ButtonEnum to read.
         * @return            getButtonClick(ButtonEnum b) will return a bool, while getButtonPress(ButtonEnum b) will return a byte if reading ::L2 or ::R2.
         */
        uint8_t getButtonPress(ButtonEnum b);
        bool getButtonClick(ButtonEnum b);
        /**@}*/

        /** @name Xbox Controller functions */
        /**
         * Return the analog value from the joysticks on the controller.
         * @param  a          Either ::LeftHatX, ::LeftHatY, ::RightHatX or ::RightHatY.
         * @return            Returns a signed 16-bit integer.
         */
        int16_t getAnalogHat(AnalogHatEnum a);

        /** Turn rumble off and all the LEDs on the controller. */
        void setAllOff() {
                setRumbleOn(0, 0);
                setLedRaw(0);
        };

        /** Turn rumble off the controller. */
        void setRumbleOff() {
                setRumbleOn(0, 0);
        };
        /**
         * Turn rumble on.
         * @param lValue     Left motor (big weight) inside the controller.
         * @param rValue     Right motor (small weight) inside the controller.
         */
        void setRumbleOn(uint8_t lValue, uint8_t rValue);
        /**
         * Set LED value. Without using the ::LEDEnum or ::LEDModeEnum.
         * @param value      See:
         * setLedOff(), setLedOn(LEDEnum l),
         * setLedBlink(LEDEnum l), and setLedMode(LEDModeEnum lm).
         */
        void setLedRaw(uint8_t value);

        /** Turn all LEDs off the controller. */
        void setLedOff() {
                setLedRaw(0);
        };
        /**
         * Turn on a LED by using ::LEDEnum.
         * @param l          ::OFF, ::LED1, ::LED2, ::LED3 and ::LED4 is supported by the Xbox controller.
         */
        void setLedOn(LEDEnum l);
        /**
         * Turn on a LED by using ::LEDEnum.
         * @param l          ::ALL, ::LED1, ::LED2, ::LED3 and ::LED4 is supported by the Xbox controller.
         */
        void setLedBlink(LEDEnum l);
        /**
         * Used to set special LED modes supported by the Xbox controller.
         * @param lm         See ::LEDModeEnum.
         */
        void setLedMode(LEDModeEnum lm);

        /**
         * Used to call your own function when the controller is successfully initialized.
         * @param funcOnInit Function to call.
         */
        void attachOnInit(void (*funcOnInit)(void)) {
                pFuncOnInit = funcOnInit;
        };
        /**@}*/

        /** True if a Xbox 360 controller is connected. */
        bool Xbox360Connected;

protected:
        /** Pointer to USB class instance. */
        USB *pUsb;
        /** Device address. */
        uint8_t bAddress;
        /** Endpoint info structure. */
        EpInfo epInfo[XBOX_MAX_ENDPOINTS];

private:
        /**
         * Called when the controller is successfully initialized.
         * Use attachOnInit(void (*funcOnInit)(void)) to call your own function.
         * This is useful for instance if you want to set the LEDs in a specific way.
         */
        void onInit();
        void (*pFuncOnInit)(void); // Pointer to function called in onInit()

        bool bPollEnable;

        /* Variables to store the buttons */
        uint32_t ButtonState;
        uint32_t OldButtonState;
        uint16_t ButtonClickState;
        int16_t hatValue[4];
        uint16_t controllerStatus;

        bool L2Clicked; // These buttons are analog, so we use we use these bools to check if they where clicked or not
        bool R2Clicked;

        uint8_t readBuf[EP_MAXPKTSIZE]; // General purpose buffer for input data
        uint8_t writeBuf[8]; // General purpose buffer for output data

        void readReport(); // read incoming data
        void printReport(); // print incoming date - Uncomment for debugging

        /* Private commands */
        void XboxCommand(uint8_t* data, uint16_t nbytes);
};
#endif