usbdhid.h

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//*****************************************************************************
//
// usbdhid.h - Definitions used by HID class devices.
//
// 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 __USBDHID_H__
#define __USBDHID_H__

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

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

//*****************************************************************************
//
// This is the size of the g_pui8HIDInterface array in bytes.
//
//*****************************************************************************
#define HIDINTERFACE_SIZE       (9)

//*****************************************************************************
//
// This is the size of the g_pui8HIDInEndpoint array in bytes.
//
//*****************************************************************************
#define HIDINENDPOINT_SIZE      (7)

//*****************************************************************************
//
// This is the size of the g_pui8HIDOutEndpoint array in bytes.
//
//*****************************************************************************
#define HIDOUTENDPOINT_SIZE     (7)

//*****************************************************************************
//
// This is the size of the tHIDDescriptor in bytes.
//
//*****************************************************************************
#define HIDDESCRIPTOR_SIZE      (9)

//*****************************************************************************
//
//
//*****************************************************************************
#define COMPOSITE_DHID_SIZE     (HIDINTERFACE_SIZE + HIDINENDPOINT_SIZE +     \
                                 HIDOUTENDPOINT_SIZE + HIDDESCRIPTOR_SIZE)

//*****************************************************************************
//
// Macros used to create the static Report Descriptors.
//
//*****************************************************************************

//*****************************************************************************
//
//
//*****************************************************************************
#define UsagePage(ui8Value)      0x05, ((ui8Value) & 0xff)

//*****************************************************************************
//
//
//*****************************************************************************
#define UsagePageVendor(ui16Value)     0x06, ((ui16Value) & 0xFF),            \
                                       (((ui16Value) >> 8) & 0xFF)

//*****************************************************************************
//
//
//*****************************************************************************
#define Usage(ui8Value)          0x09, ((ui8Value) & 0xff)

//*****************************************************************************
//
//
//*****************************************************************************
#define UsageVendor(ui16Value)   0x0A, ((ui16Value) & 0xFF),            \
                                 (((ui16Value) >> 8) & 0xFF)

//*****************************************************************************
//
//
//*****************************************************************************
#define UsageMinimum(ui8Value)   0x19, ((ui8Value) & 0xff)

//*****************************************************************************
//
//
//*****************************************************************************
#define UsageMaximum(ui8Value)   0x29, ((ui8Value) & 0xff)

//*****************************************************************************
//
//
//*****************************************************************************
#define LogicalMinimum(i8Value)  0x15, ((i8Value) & 0xff)

//*****************************************************************************
//
//
//*****************************************************************************
#define LogicalMaximum(i8Value)  0x25, ((i8Value) & 0xff)

//*****************************************************************************
//
//
//*****************************************************************************
#define PhysicalMinimum(i16Value)                                           \
                                0x36, ((i16Value) & 0xFF),                    \
                                (((i16Value) >> 8) & 0xFF)

//*****************************************************************************
//
//
//*****************************************************************************
#define PhysicalMaximum(i16Value)                                           \
                                0x46, ((i16Value) & 0xFF),                    \
                                (((i16Value) >> 8) & 0xFF)

//*****************************************************************************
//
//
//*****************************************************************************
#define Collection(ui8Value)     0xa1, ((ui8Value) & 0xff)

//*****************************************************************************
//
//
//*****************************************************************************
#define EndCollection           0xc0

//*****************************************************************************
//
//
//*****************************************************************************
#define ReportCount(ui8Value)    0x95, ((ui8Value) & 0xff)

//*****************************************************************************
//
//
//*****************************************************************************
#define ReportID(ui8Value)       0x85, ((ui8Value) & 0xff)

//*****************************************************************************
//
//
//*****************************************************************************
#define ReportSize(ui8Value)     0x75, ((ui8Value) & 0xff)

//*****************************************************************************
//
//
//*****************************************************************************
#define Input(ui8Value)          0x81, ((ui8Value) & 0xff)

//*****************************************************************************
//
//
//*****************************************************************************
#define Input2(ui16Value)       0x82, ((ui16Value) & 0xff),                   \
                                (((ui16Value) >> 8) & 0xFF)

//*****************************************************************************
//
//
//*****************************************************************************
#define Feature(ui8Value)        0xB1, ((ui8Value) & 0xff)

//*****************************************************************************
//
//
//*****************************************************************************
#define Feature2(ui16Value)     0xB2, ((ui16Value) & 0xff),                   \
                                (((ui16Value) >> 8) & 0xFF)

//*****************************************************************************
//
//
//*****************************************************************************
#define Output(ui8Value)        0x91, ((ui8Value) & 0xff)

//*****************************************************************************
//
//
//*****************************************************************************
#define Output2(ui16Value)      0x92, ((ui16Value) & 0xff),                   \
                                (((ui16Value) >> 8) & 0xFF)

//*****************************************************************************
//
//
//*****************************************************************************
#define UnitExponent(i8Value)   0x55, ((i8Value) & 0x0f)

//*****************************************************************************
//
//
//*****************************************************************************
#define Unit(ui32Value)         0x67, (ui32Value) & 0x0f),                    \
                                (((ui32Value) >> 8) & 0xFF),                  \
                                (((ui32Value) >> 16) & 0xFF),                 \
                                (((ui32Value) >> 24) & 0xFF)

//*****************************************************************************
//
//*****************************************************************************
#define UnitDistance_cm         0x66, 0x11, 0x00

//*****************************************************************************
//
//*****************************************************************************
#define UnitDistance_i          0x66, 0x13, 0x00

//*****************************************************************************
//
//*****************************************************************************
#define UnitRotation_deg        0x66, 0x14, 0x00

//*****************************************************************************
//
//*****************************************************************************
#define UnitRotation_rad        0x66, 0x12, 0x00

//*****************************************************************************
//
//*****************************************************************************
#define UnitMass_g              0x66, 0x01, 0x01

//*****************************************************************************
//
//*****************************************************************************
#define UnitTime_s              0x66, 0x01, 0x10

//*****************************************************************************
//
//*****************************************************************************
#define UnitTemp_K              0x67, 0x01, 0x00, 0x01, 0x00

//*****************************************************************************
//
//*****************************************************************************
#define UnitTemp_F              0x67, 0x03, 0x00, 0x01, 0x00

//*****************************************************************************
//
//*****************************************************************************
#define UnitVelocitySI          0x66, 0x11, 0xF0

//*****************************************************************************
//
//*****************************************************************************
#define UnitMomentumSI          0x66, 0x11, 0xF1

//*****************************************************************************
//
//*****************************************************************************
#define UnitAccelerationSI      0x66, 0x11, 0xE0

//*****************************************************************************
//
//*****************************************************************************
#define UnitForceSI             0x66, 0x11, 0xE1

//*****************************************************************************
//
//*****************************************************************************
#define UnitEnergySI            0x66, 0x21, 0xE1

//*****************************************************************************
//
//*****************************************************************************
#define UnitAngAccelerationSI   0x66, 0x12, 0xE0

//*****************************************************************************
//
//*****************************************************************************
#define UnitVoltage             0x67, 0x21, 0xD1, 0xF0, 0x00

//*****************************************************************************
//
//*****************************************************************************
#define UnitCurrent_A           0x67, 0x01, 0x00, 0x10, 0x00

//*****************************************************************************
//
// PRIVATE
//
// The first few sections of this header are private defines that are used by
// the USB HID code and are here only to help with the application
// allocating the correct amount of memory for the HID device code.
//
//*****************************************************************************
#define USBDHID_MAX_PACKET      64

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

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

    //
    // Waiting on completion of a send or receive transaction.
    //
    eHIDStateWaitData
}
tHIDState;

//*****************************************************************************
//
// PRIVATE
//
// This structure defines the private instance data and state variables for
// HID devices.  The memory for this structure is included in the
// sPrivateData field in the tUSBDHIDDevice structure passed in the
// USBDHIDInit() function.
//
//*****************************************************************************
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 HID receive channel.
    //
    volatile tHIDState iHIDRxState;

    //
    // The state of the HID transmit channel.
    //
    volatile tHIDState iHIDTxState;

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

    //
    // Size of the HID IN report.
    //
    uint16_t ui16InReportSize;

    //
    // .
    //
    uint16_t ui16InReportIndex;

    //
    // Size of the HID OUT report.
    //
    uint16_t ui16OutReportSize;

    //
    // Pointer to the current HID IN report data.
    //
    uint8_t *pui8InReportData;

    //
    // Pointer to the current HID OUT report data.
    //
    uint8_t *pui8OutReportData;

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

    //
    // Whether an IN transaction is in process.
    //
    volatile bool bSendInProgress;

    //
    // An HID request transaction is in process(Endpoint 0).
    //
    bool bGetRequestPending;

    //
    // 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;
}
tHIDInstance;

//*****************************************************************************
//
//
//*****************************************************************************
typedef struct
{
    //
    //
    uint8_t ui8Duration4mS;

    //
    //
    uint8_t ui8ReportID;

    //
    //
    uint16_t ui16TimeTillNextmS;

    //
    //
    uint32_t ui32TimeSinceReportmS;
}
tHIDReportIdle;

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

    //
    //
    uint16_t ui16PID;

    //
    //
    uint16_t ui16MaxPowermA;

    //
    //
    uint8_t ui8PwrAttributes;

    //
    //
    uint8_t ui8Subclass;

    //
    //
    uint8_t ui8Protocol;

    //
    //
    uint8_t ui8NumInputReports;

    //
    //
    tHIDReportIdle *psReportIdle;

    //
    tUSBCallback pfnRxCallback;

    //
    //
    void *pvRxCBData;

    //
    //
    tUSBCallback pfnTxCallback;

    //
    //
    void *pvTxCBData;

    //
    //
    bool bUseOutEndpoint;

    //
    //
    const tHIDDescriptor *psHIDDescriptor;

    //
    //
    const uint8_t * const *ppui8ClassDescriptors;

    //
    //
    const uint8_t * const *ppui8StringDescriptors;

    //
    //
    uint32_t ui32NumStringDescriptors;

    //
    // ! The configuration descriptor for this HID device.
    //
    const tConfigHeader * const *ppsConfigDescriptor;

    //
    //
    tHIDInstance sPrivateData;
}
tUSBDHIDDevice;

//*****************************************************************************
//
// HID-specific device class driver events
//
//*****************************************************************************

//*****************************************************************************
//
//
//*****************************************************************************
#define USBD_HID_EVENT_GET_REPORT                                             \
                                (USBD_HID_EVENT_BASE + 0)

//*****************************************************************************
//
//
//*****************************************************************************
#define USBD_HID_EVENT_REPORT_SENT                                            \
                                (USBD_HID_EVENT_BASE + 1)

//*****************************************************************************
//
//
//*****************************************************************************
#define USBD_HID_EVENT_GET_REPORT_BUFFER                                      \
                                (USBD_HID_EVENT_BASE + 2)

//*****************************************************************************
//
//
//*****************************************************************************
#define USBD_HID_EVENT_SET_REPORT                                             \
                                (USBD_HID_EVENT_BASE + 3)

//*****************************************************************************
//
//
//*****************************************************************************
#define USBD_HID_EVENT_GET_PROTOCOL                                           \
                                (USBD_HID_EVENT_BASE + 4)

//*****************************************************************************
//
//
//*****************************************************************************
#define USBD_HID_EVENT_SET_PROTOCOL                                           \
                                (USBD_HID_EVENT_BASE + 5)

//*****************************************************************************
//
//
//*****************************************************************************
#define USBD_HID_EVENT_IDLE_TIMEOUT                                           \
                                (USBD_HID_EVENT_BASE + 6)

//*****************************************************************************
//
// API Function Prototypes
//
//*****************************************************************************
extern void *USBDHIDInit(uint32_t ui32Index, tUSBDHIDDevice *psHIDDevice);
extern void *USBDHIDCompositeInit(uint32_t ui32Index,
                                  tUSBDHIDDevice *psDevice,
                                  tCompositeEntry *psCompEntry);
extern void USBDHIDTerm(void *pvHIDInstance);
extern void *USBDHIDSetRxCBData(void *pvHIDInstance, void *pvCBData);
extern void *USBDHIDSetTxCBData(void *pvHIDInstance, void *pvCBData);
extern uint32_t USBDHIDReportWrite(void *pvHIDInstance, uint8_t *pi8Data,
                                   uint32_t ui32Length, bool bLast);
extern uint32_t USBDHIDPacketRead(void *pvHIDInstance, uint8_t *pi8Data,
                                  uint32_t ui32Length, bool bLast);
extern uint32_t USBDHIDTxPacketAvailable(void *pvHIDInstance);
extern uint32_t USBDHIDRxPacketAvailable(void *pvHIDInstance);
extern bool USBDHIDRemoteWakeupRequest(void *pvHIDInstance);

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

//*****************************************************************************
//
// The following APIs are deprecated.
//
//*****************************************************************************
#ifndef DEPRECATED

//
// Use USBDCDFeatureSet() or USBHCDFeatureSet() with \b USBLIB_FEATURE_POWER
// configuration option.
//
extern void USBDHIDPowerStatusSet(void *pvHIDInstance, uint8_t ui8Power);
#endif

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

#endif // __USBDHID_H__