//*****************************************************************************
//
// usbdhidmouse.h - Public header file for the USB HID Mouse device class
//                  driver
//
// Copyright (c) 2008-2010 Texas Instruments Incorporated.  All rights reserved.
// Software License Agreement
// 
// Texas Instruments (TI) is supplying this software for use solely and
// exclusively on TI's microcontroller products. The software is owned by
// TI and/or its suppliers, and is protected under applicable copyright
// laws. You may not combine this software with "viral" open-source
// software in order to form a larger program.
// 
// THIS SOFTWARE IS PROVIDED "AS IS" AND WITH ALL FAULTS.
// NO WARRANTIES, WHETHER EXPRESS, IMPLIED OR STATUTORY, INCLUDING, BUT
// NOT LIMITED TO, IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
// A PARTICULAR PURPOSE APPLY TO THIS SOFTWARE. TI SHALL NOT, UNDER ANY
// CIRCUMSTANCES, BE LIABLE FOR SPECIAL, INCIDENTAL, OR CONSEQUENTIAL
// DAMAGES, FOR ANY REASON WHATSOEVER.
// 
// This is part of AM1808 StarterWare USB Library and reused from revision 6288 
// of the  Stellaris USB Library.
//
//*****************************************************************************

#ifndef __USBDHIDMOUSE_H__
#define __USBDHIDMOUSE_H__

//*****************************************************************************
//
// If building with a C++ compiler, make all of the definitions in this header
// have a C binding.
//
//*****************************************************************************
#ifdef __cplusplus
extern "C"
{
#endif

//*****************************************************************************
//
//! \addtogroup hid_mouse_device_class_api
//! @{
//
//*****************************************************************************

//*****************************************************************************
//
// PRIVATE
//
// The first few sections of this header are private defines that are used by
// the USB HID mouse code and are here only to help with the application
// allocating the correct amount of memory for the HID mouse device code.
//
//*****************************************************************************

//*****************************************************************************
//
// PRIVATE
//
// The size of the mouse input report sent to the host.
//
//*****************************************************************************
#define MOUSE_REPORT_SIZE       3

//*****************************************************************************
//
// PRIVATE
//
// This enumeration holds the various states that the mouse can be in during
// normal operation.
//
//*****************************************************************************
typedef enum
{
    //
    // Unconfigured.
    //
    HID_MOUSE_STATE_UNCONFIGURED,

    //
    // No keys to send and not waiting on data.
    //
    HID_MOUSE_STATE_IDLE,

    //
    // Waiting on report data from the host.
    //
    HID_MOUSE_STATE_WAIT_DATA,

    //
    // Waiting on data to be sent out.
    //
    HID_MOUSE_STATE_SEND
}
tMouseState;

//*****************************************************************************
//
// PRIVATE
//
// This structure provides the private instance data structure for the USB
// HID Mouse device.  This structure forms the RAM workspace used by each
// instance of the mouse.
//
//*****************************************************************************
typedef struct
{
    //
    // The USB configuration number set by the host or 0 of the device is
    // currently unconfigured.
    //
    unsigned char ucUSBConfigured;

    //
    // The protocol requested by the host, USB_HID_PROTOCOL_BOOT or
    // USB_HID_PROTOCOL_REPORT.
    //
    unsigned char ucProtocol;

    //
    // A buffer used to hold the last input report sent to the host.
    //
    unsigned char pucReport[MOUSE_REPORT_SIZE];

    //
    // The current state of the mouse interrupt IN endpoint.
    //
    volatile tMouseState eMouseState;

    //
    // The idle timeout control structure for our input report.  This is
    // required by the lower level HID driver.
    //
    tHIDReportIdle sReportIdle;

    //
    // The lower level HID driver's instance data.
    //
    tHIDInstance sHIDInstance;

    //
    // This is needed for the lower level HID driver.
    //
    tUSBDHIDDevice sHIDDevice;
}
tHIDMouseInstance;

#ifndef DEPRECATED
//*****************************************************************************
//
// The number of bytes of workspace required by the HID mouse driver.
// The client must provide a block of RAM of at least this size in the
// tHIDMouseInstance field of the tUSBHIDMouseDevice structure passed on
// USBDHIDMouseInit().  The HID mouse driver needs space for the generic HID
// interface + the Mouse Report Buffer + HID mouse interface.
//
// This value is deprecated and should not be used, any new code should just
// pass in a tHIDMouseInstance structure in the psPrivateHIDMouseData field.
//
//*****************************************************************************
#define USB_HID_MOUSE_WORKSPACE_SIZE \
                                 (sizeof(tHIDMouseInstance))
#endif

//*****************************************************************************
//
//! This structure is used by the application to define operating parameters
//! for the HID mouse device.
//
//*****************************************************************************
typedef struct
{
    //
    //! The vendor ID that this device is to present in the device descriptor.
    //
    unsigned short usVID;

    //
    //! The product ID that this device is to present in the device descriptor.
    //
    unsigned short usPID;

    //
    //! The maximum power consumption of the device, expressed in milliamps.
    //
    unsigned short usMaxPowermA;

    //
    //! Indicates whether the device is self- or bus-powered and whether or not
    //! it supports remote wakeup.  Valid values are USB_CONF_ATTR_SELF_PWR or
    //! USB_CONF_ATTR_BUS_PWR, optionally ORed with USB_CONF_ATTR_RWAKE.
    //
    unsigned char ucPwrAttributes;

    //
    //! A pointer to the callback function which will be called to notify
    //! the application of events relating to the operation of the mouse.
    //
    tUSBCallback pfnCallback;

    //
    //! A client-supplied pointer which will be sent as the first
    //! parameter in all calls made to the mouse callback, pfnCallback.
    //
    void *pvCBData;

    //
    //! A pointer to the string descriptor array for this device.  This array
    //! must contain the following string descriptor pointers in this order.
    //! Language descriptor, Manufacturer name string (language 1), Product
    //! name string (language 1), Serial number string (language 1),HID
    //! Interface description string (language 1), Configuration description
    //! string (language 1).
    //!
    //! If supporting more than 1 language, the descriptor block (except for
    //! string descriptor 0) must be repeated for each language defined in the
    //! language descriptor.
    //
    const unsigned char * const *ppStringDescriptors;

    //
    //! The number of descriptors provided in the ppStringDescriptors
    //! array.  This must be (1 + (5 * (num languages))).
    //
    unsigned int ulNumStringDescriptors;

    //
    //! A pointer to private instance data for this device.  This memory must
    //! remain accessible for as long as the mouse device is in use and must
    //! not be modified by any code outside the HID mouse driver.
    //
    tHIDMouseInstance *psPrivateHIDMouseData;
}
tUSBDHIDMouseDevice;

//*****************************************************************************
//
//! This return code from USBDHIDMouseStateChange indicates success.
//
//*****************************************************************************
#define MOUSE_SUCCESS           0

//*****************************************************************************
//
//! This return code from USBDHIDMouseStateChange indicates that an error was
//! reported while attempting to send a report to the host.  A client should
//! assume that the host has disconnected if this return code is seen.
//
//*****************************************************************************
#define MOUSE_ERR_TX_ERROR      2

//*****************************************************************************
//
//! USBDHIDMouseStateChange returns this value if it is called before the
//! USB host has connected and configured the device.  All mouse state
//! information passed on the call will have been ignored.
//
//*****************************************************************************
#define MOUSE_ERR_NOT_CONFIGURED \
                                4

//*****************************************************************************
//
//! Setting this bit in the ucButtons parameter to USBDHIDMouseStateChange
//! indicates to the USB host that button 1 on the mouse is pressed.
//
//*****************************************************************************
#define MOUSE_REPORT_BUTTON_1   0x01

//*****************************************************************************
//
//! Setting this bit in the ucButtons parameter to USBDHIDMouseStateChange
//! indicates to the USB host that button 2 on the mouse is pressed.
//
//*****************************************************************************
#define MOUSE_REPORT_BUTTON_2   0x02

//*****************************************************************************
//
//! Setting this bit in the ucButtons parameter to USBDHIDMouseStateChange
//! indicates to the USB host that button 3 on the mouse is pressed.
//
//*****************************************************************************
#define MOUSE_REPORT_BUTTON_3   0x04

//*****************************************************************************
//
// API Function Prototypes
//
//*****************************************************************************
extern void *USBDHIDMouseInit(unsigned int ulIndex,
                              const tUSBDHIDMouseDevice *psDevice);
extern void *USBDHIDMouseCompositeInit(unsigned int ulIndex,
                                       const tUSBDHIDMouseDevice *psDevice);
extern void USBDHIDMouseTerm(void *pvInstance);
extern void *USBDHIDMouseSetCBData(void *pvInstance, void *pvCBData);
extern unsigned int USBDHIDMouseStateChange(void *pvInstance, char cDeltaX,
                                             char cDeltaY,
                                             unsigned char ucButtons);
extern void USBDHIDMousePowerStatusSet(void *pvInstance,
                                       unsigned char ucPower);
extern tBoolean USBDHIDMouseRemoteWakeupRequest(void *pvInstance);

//*****************************************************************************
//
// Close the Doxygen group.
//! @}
//
//*****************************************************************************

//*****************************************************************************
//
// Mark the end of the C bindings section for C++ compilers.
//
//*****************************************************************************
#ifdef __cplusplus
}
#endif

#endif // __USBDHIDMOUSE_H__
