usbdbulk.h

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//*****************************************************************************
//
// usbdcdc.h - USBLib support for a generic bulk device.
//
// Copyright (c) 2008-2017 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.
// 
//
//*****************************************************************************

#ifndef __USBDBULK_H__
#define __USBDBULK_H__

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

//*****************************************************************************
//
//
//*****************************************************************************

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

//*****************************************************************************
//
// PRIVATE
//
// This enumeration holds the various states that the device can be in during
// normal operation.
//
//*****************************************************************************
typedef enum
{
    //
    // Not configured.
    //
    eBulkStateUnconfigured,

    //
    // No outstanding transaction remains to be completed.
    //
    eBulkStateIdle,

    //
    // Waiting on completion of a send or receive transaction.
    //
    eBulkStateWaitData,

    //
    // Waiting for client to process data.
    //
    eBulkStateWaitClient
}
tBulkState;

//*****************************************************************************
//
// PRIVATE
//
// This structure defines the private instance data and state variables for the
// Bulk only example device.  The memory for this structure is inlcluded in
// the sPrivateData field in the tUSBDBulkDevice structure passed on
// USBDBulkInit().
//
//*****************************************************************************
typedef struct
{
    //
    // Base address for the USB controller.
    //
    uint32_t ui32USBBase;

    //
    // The device info to interact with the lower level DCD code.
    //
    tDeviceInfo sDevInfo;

    //
    // The state of the bulk receive channel.
    //
    volatile tBulkState iBulkRxState;

    //
    // The state of the bulk transmit channel.
    //
    volatile tBulkState iBulkTxState;

    //
    // State of any pending operations that could not be handled immediately
    // upon receipt.
    //
    volatile uint16_t ui16DeferredOpFlags;

    //
    // Size of the last transmit.
    //
    uint16_t ui16LastTxSize;

    //
    // The connection status of the device.
    //
    volatile bool bConnected;

    //
    // The IN endpoint number, this is modified in composite devices.
    //
    uint8_t ui8INEndpoint;

    //
    // The OUT endpoint number, this is modified in composite devices.
    //
    uint8_t ui8OUTEndpoint;

    //
    // The bulk class interface number, this is modified in composite devices.
    //
    uint8_t ui8Interface;
}
tBulkInstance;

//*****************************************************************************
//
// This is the size of the g_pui8BulkInterface array in bytes.
//
//*****************************************************************************
#define BULKINTERFACE_SIZE      (23)

//*****************************************************************************
//
//
//*****************************************************************************
#define COMPOSITE_DBULK_SIZE    (BULKINTERFACE_SIZE)

//*****************************************************************************
//
//
//*****************************************************************************
typedef struct
{
    //
    //
    const uint16_t ui16VID;

    //
    //
    const uint16_t ui16PID;

    //
    //
    const uint16_t ui16MaxPowermA;

    //
    //
    const uint8_t ui8PwrAttributes;

    //
    //
    const tUSBCallback pfnRxCallback;

    //
    //
    void *pvRxCBData;

    //
    //
    const tUSBCallback pfnTxCallback;

    //
    //
    void *pvTxCBData;

    //
    //
    const uint8_t * const *ppui8StringDescriptors;

    //
    //
    const uint32_t ui32NumStringDescriptors;

    //
    //
    tBulkInstance sPrivateData;
}
tUSBDBulkDevice;

//*****************************************************************************
//
// API Function Prototypes
//
//*****************************************************************************
extern void *USBDBulkInit(uint32_t ui32Index, tUSBDBulkDevice *psBulkDevice);
extern void *USBDBulkCompositeInit(uint32_t ui32Index,
                                   tUSBDBulkDevice *psBulkDevice,
                                   tCompositeEntry *psCompEntry);
extern void USBDBulkTerm(void *pvBulkInstance);
extern void *USBDBulkSetRxCBData(void *pvBulkInstance, void *pvCBData);
extern void *USBDBulkSetTxCBData(void *pvBulkInstance, void *pvCBData);
extern uint32_t USBDBulkPacketWrite(void *pvBulkInstance, uint8_t *pi8Data,
                                    uint32_t ui32Length, bool bLast);
extern uint32_t USBDBulkPacketRead(void *pvBulkInstance, uint8_t *pi8Data,
                                   uint32_t ui32Length, bool bLast);
extern uint32_t USBDBulkTxPacketAvailable(void *pvBulkInstance);
extern uint32_t USBDBulkRxPacketAvailable(void *pvBulkInstance);
extern bool USBDBulkRemoteWakeupRequest(void *pvBulkInstance);

//*****************************************************************************
//
// Close the Doxygen group.
//
//*****************************************************************************

//*****************************************************************************
//
// The following APIs are deprecated.
//
//*****************************************************************************
#ifndef DEPRECATED
extern void USBDBulkPowerStatusSet(void *pvBulkInstance, uint8_t ui8Power);
#endif

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

#endif // __USBDBULK_H__