520 lines
17 KiB
C
520 lines
17 KiB
C
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//#############################################################################
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// FILE: usbdfu.h
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// TITLE: Definitions related to the USB Device Firmware Upgrade class
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//#############################################################################
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// $TI Release: $
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// $Release Date: $
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// $Copyright:
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// Copyright (C) 2009-2023 Texas Instruments Incorporated - http://www.ti.com/
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//
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// Redistribution and use in source and binary forms, with or without
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// modification, are permitted provided that the following conditions
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// are met:
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//
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// Redistributions of source code must retain the above copyright
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// notice, this list of conditions and the following disclaimer.
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//
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// Redistributions in binary form must reproduce the above copyright
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// notice, this list of conditions and the following disclaimer in the
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// documentation and/or other materials provided with the
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// distribution.
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//
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// Neither the name of Texas Instruments Incorporated nor the names of
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// its contributors may be used to endorse or promote products derived
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// from this software without specific prior written permission.
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//
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// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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// $
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//#############################################################################
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#ifndef __USBDFU_H__
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#define __USBDFU_H__
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//*****************************************************************************
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//
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// DFU attributes as published in the functional descriptor.
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//
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//*****************************************************************************
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#define DFU_ATTR_WILL_DETACH 0x08
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#define DFU_ATTR_MANIFEST_TOLERANT \
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0x04
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#define DFU_ATTR_CAN_UPLOAD 0x02
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#define DFU_ATTR_CAN_DOWNLOAD 0x01
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//*****************************************************************************
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//
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// The states that the DFU device can be in. These values are reported to
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// the host in response to a USBD_DFU_REQUEST_GETSTATE request.
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//
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//*****************************************************************************
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typedef enum
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{
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eDFUStateAppIdle = 0,
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eDFUStateAppDetach,
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eDFUStateIdle,
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eDFUStateDnloadSync,
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eDFUStateDnBusy,
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eDFUStateDnloadIdle,
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eDFUStateManifestSync,
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eDFUStateManifest,
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eDFUStateManifestWaitReset,
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eDFUStateUploadIdle,
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eDFUStateError
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}
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tDFUState;
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//*****************************************************************************
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//
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// The current error status of the DFU device. These values are reported to
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// the host in response to a USBD_DFU_REQUEST_GETSTATUS request.
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//
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//*****************************************************************************
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typedef enum
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{
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eDFUStatusOk = 0,
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eDFUStatusErrTarget,
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eDFUStatusErrFile,
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eDFUStatusErrWrite,
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eDFUStatusErrErase,
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eDFUStatusErrCheckErased,
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eDFUStatusErrProg,
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eDFUStatusErrVerify,
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eDFUStatusErrAddress,
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eDFUStatusErrNotDone,
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eDFUStatusErrFirmware,
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eDFUStatusErrVendor,
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eDFUStatusErrUSBR,
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eDFUStatusErrPOR,
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eDFUStatusErrUnknown,
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eDFUStatusErrStalledPkt
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}
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tDFUStatus;
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//*****************************************************************************
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//
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// The descriptor type for the DFU functional descriptor.
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//
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//*****************************************************************************
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#define USB_DFU_FUNC_DESCRIPTOR_TYPE \
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0x21
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//*****************************************************************************
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//
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// The subclass identifier for DFU as reported to the host in the
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// bInterfaceSubClass field of the DFU interface descriptor.
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//
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//*****************************************************************************
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#define USB_DFU_SUBCLASS 0x01
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//*****************************************************************************
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//
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// The protocol identifier for DFU as reported to the host in the
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// bInterfaceProtocol field of the DFU interface descriptor.
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//
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//*****************************************************************************
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#define USB_DFU_PROTOCOL 0x02
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#define USB_DFU_RUNTIME_PROTOCOL \
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0x01
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//*****************************************************************************
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//
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// DFU class-specific request identifiers.
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//
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//*****************************************************************************
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#define USBD_DFU_REQUEST_DETACH 0
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#define USBD_DFU_REQUEST_DNLOAD 1
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#define USBD_DFU_REQUEST_UPLOAD 2
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#define USBD_DFU_REQUEST_GETSTATUS \
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3
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#define USBD_DFU_REQUEST_CLRSTATUS \
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4
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#define USBD_DFU_REQUEST_GETSTATE \
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5
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#define USBD_DFU_REQUEST_ABORT 6
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//*****************************************************************************
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//
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// Request 1KB blocks from the host. This value is published in the USB
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// functional descriptor.
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//
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//*****************************************************************************
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#define DFU_TRANSFER_SIZE 1024
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//*****************************************************************************
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//
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// USBLib-specific request identifier. This is used to determine whether
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// the target device supports our DFU command protocol. It is expected that
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// a device not supporting our extensions will stall this request. This
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// request is only supported while the DFU device is in eDFUStateIdle.
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//
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// An IN request containing the following parameters will result in the device
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// sending back a tDFUQueryTivaProtocol structure indicating that
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// USBLib extensions are supported. The actual values in wValue and wIndex
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// have no meaning other than to act as markers in the unlikely event that
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// another DFU device also chooses to use request ID 0x42 for some other
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// purpose.
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//
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// wValue - 0x23(REQUEST_TIVA_VALUE)
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// wIndex - Interface number
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// wLength - sizeof(tDFUQueryTivaProtocol)
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//
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//*****************************************************************************
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#define USBD_DFU_REQUEST_TIVA 0x42
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#define REQUEST_TIVA_VALUE 0x23
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#define DFU_PROTOCOL_TIVA_MARKER \
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0x4C4D
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#define DFU_PROTOCOL_TIVA_VERSION_1 \
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0x0001
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#ifdef ewarm
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#pragma pack(1)
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#endif
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//*****************************************************************************
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//
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// The structure sent to the host when a valid USBD_DFU_REQUEST_TIVA is
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// received while the DFU device is in idle state.
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//
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//*****************************************************************************
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typedef struct
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{
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//
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// The protocol marker(DFU_PROTOCOL_TIVA_MARKER)
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//
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uint16_t ui16Marker;
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//
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// The protocol version(DFU_PROTOCOL_TIVA_VERSION_1)
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//
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uint16_t ui16Version;
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}
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PACKED tDFUQueryTivaProtocol;
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//*****************************************************************************
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//
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// Structure sent to the host in response to USBD_DFU_REQUEST_GETSTATUS.
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//
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//*****************************************************************************
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typedef struct
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{
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uint8_t bStatus;
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uint8_t bwPollTimeout[3];
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uint8_t bState;
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uint8_t iString;
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}
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PACKED tDFUGetStatusResponse;
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//*****************************************************************************
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//
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// Firmware Download Commands
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//
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// The data passed on a USBD_DFU_REQUEST_DNLOAD request is comprised of a
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// header which instructs the boot loader how to interpret the block and
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// block-specific data. The following definitions relate to the download
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// block headers.
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//
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//*****************************************************************************
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//*****************************************************************************
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//
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// Supported command identifiers
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//
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//*****************************************************************************
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#define DFU_CMD_PROG 0x01
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#define DFU_CMD_READ 0x02
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#define DFU_CMD_CHECK 0x03
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#define DFU_CMD_ERASE 0x04
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#define DFU_CMD_INFO 0x05
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#define DFU_CMD_BIN 0x06
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#define DFU_CMD_RESET 0x07
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//*****************************************************************************
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//
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// Generic download command header.
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//
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//*****************************************************************************
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typedef struct
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{
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//
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// Command identifier.
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//
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uint8_t ui8Command;
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//
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// Command-specific data elements.
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//
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uint8_t pui8Data[7];
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}
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PACKED tDFUDownloadHeader;
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//*****************************************************************************
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//
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// Header for the DFU_CMD_PROG command.
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//
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// This command is used to program a section of the flash with the binary data
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// which immediately follows the header. The start address of the data is
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// expressed as a 1KB block number so 0 would represent the bottom of flash
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// (which, incidentally, the USB boot loader will not let you program) and 0x10
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// would represent address 16KB or 16384 (0x4000). The ui32Length field
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// contains the total number of bytes of data in the following programming
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// operation. The DFU device will not look for any command header on following
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// USBD_DFU_REQUEST_DNLOAD requests until the operation is completed or
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// aborted.
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//
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// By using this protocol, the DFU_CMD_PROG command header may be used as a
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// simple header on the binary files to be sent to the DFU device for
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// programming. If we enforce the requirement that the DFU_CMD_PROG header is
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// applied to each USBD_DFU_REQUEST_DNLOAD (one per block), this means that the
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// host-side DFU application must be aware of the underlying protocol and
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// insert these headers dynamically during programming operations. This could
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// be handled by post processing the binary to insert the headers at the
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// appropriate points but this would then tie the binary structure to the
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// chosen transfer size and break the operation if the transfer size were to
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// change in the future.
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//
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//*****************************************************************************
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typedef struct
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{
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//
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// DFU_CMD_PROG
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//
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uint8_t ui8Command;
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//
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// Reserved - set to 0x00.
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//
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uint8_t ui8Reserved;
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//
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// Block start address / 1024
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//
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uint16_t ui16StartAddr;
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//
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// Total length, in bytes, of following data for the complete download
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// operation.
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//
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uint32_t ui32Length;
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}
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PACKED tDFUDownloadProgHeader;
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//*****************************************************************************
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//
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// Header for the DFU_CMD_READ and DFU_CMD_CHECK commands.
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//
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// This command may be used to set the address range whose content will be
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// returned on subsequent USBD_DFU_REQUEST_UPLOAD requests from the host.
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//
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// To read back a the contents of a region of flash, the host should send
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// USBD_DFU_REQUEST_DNLOAD with ui8Command DFU_CMD_READ, ui16StartAddr set to
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// the 1KB block start address and ui32Length set to the number of bytes to
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// read. The host should then send one or more USBD_DFU_REQUEST_UPLOAD
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// requests to receive the current flash contents from the configured
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// addresses. Data returned will include an 8 byte DFU_CMD_PROG prefix
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// structure unless the prefix has been disabled by sending a DFU_CMD_BIN
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// command with the bBinary parameter set to 1.
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//
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// To check that a region of flash is erased, the DFU_CMD_CHECK command should
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// be sent with ui16StartAddr and ui32Length set to describe the region to
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// check. The host should then send a USBD_DFU_REQUEST_GETSTATUS. If the
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// erase check was successful, the returned bStatus value will be STATUS_OK,
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// otherwise it will be STATUS_ERR_CHECK_ERASED. Note that ui32Length passed
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// must be a multiple of 4. If this is not the case, the value will be
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// truncated before the check is performed.
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//
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//*****************************************************************************
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typedef struct
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{
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//
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// DFU_CMD_READ or DFU_CMD_CHECK
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//
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uint8_t ui8Command;
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//
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// Reserved - write to 0
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//
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uint8_t ui8Reserved;
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//
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// Block start address / 1024
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//
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uint16_t ui16StartAddr;
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//
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// The number of bytes of data to read back or check.
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//
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uint32_t ui32Length;
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}
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PACKED tDFUDownloadReadCheckHeader;
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//*****************************************************************************
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//
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// Header for the DFU_CMD_ERASE command.
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//
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// This command may be used to erase a number of flash blocks. The address of
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// the first block to be erased is passed in ui16StartAddr with ui16NumBlocks
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// containing the number of blocks to be erased from this address. The block
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// size of the device may be determined using the DFU_CMD_INFO command.
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//
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//*****************************************************************************
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typedef struct
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{
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//
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// DFU_CMD_ERASE
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//
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uint8_t ui8Command;
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//
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// Reserved - set to 0.
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//
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uint8_t ui8Reserved;
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//
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// Block start address / 1024
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//
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uint16_t ui16StartAddr;
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//
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// The number of blocks to erase.
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//
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||
|
|
uint16_t ui16NumBlocks;
|
||
|
|
|
||
|
|
//
|
||
|
|
// Reserved - set to 0.
|
||
|
|
//
|
||
|
|
uint8_t pui8Reserved2[2];
|
||
|
|
}
|
||
|
|
PACKED tDFUDownloadEraseHeader;
|
||
|
|
|
||
|
|
//*****************************************************************************
|
||
|
|
//
|
||
|
|
// Header for the DFU_CMD_INFO command.
|
||
|
|
//
|
||
|
|
// This command may be used to query information about the connected device.
|
||
|
|
// After sending the command, the information is returned on the next
|
||
|
|
// USBD_DFU_REQUEST_UPLOAD request.
|
||
|
|
//
|
||
|
|
//*****************************************************************************
|
||
|
|
typedef struct
|
||
|
|
{
|
||
|
|
//
|
||
|
|
// DFU_CMD_INFO
|
||
|
|
//
|
||
|
|
uint8_t ui8Command;
|
||
|
|
|
||
|
|
//
|
||
|
|
// Reserved - set to 0.
|
||
|
|
//
|
||
|
|
uint8_t pui8Reserved[7];
|
||
|
|
}
|
||
|
|
PACKED tDFUDownloadInfoHeader;
|
||
|
|
|
||
|
|
//*****************************************************************************
|
||
|
|
//
|
||
|
|
// Header for the DFU_CMD_BIN command.
|
||
|
|
//
|
||
|
|
// This command may be used to set the format of uploaded data. By default,
|
||
|
|
// images read using USBD_DFU_REQUEST_UPLOAD are formatted with the appropriate
|
||
|
|
// header to allow the same image to be flashed back to the device and have it
|
||
|
|
// located at the address from which it originated. This is a requirement of
|
||
|
|
// the DFU class specification (section 6.2 "the uploaded image must be
|
||
|
|
// usable in a subsequent download") but may not be helpful in some cases where
|
||
|
|
// the application wishes to receive only the binary image from flash. To
|
||
|
|
// instruct the DFU device to omit the position and size header, send this
|
||
|
|
// command with the bBinary field set to \b true prior to issuing a
|
||
|
|
// USBD_DFU_REQUEST_UPLOAD for image data. The format choice remains in effect
|
||
|
|
// until the command is sent once again with bBinary set to \b false.
|
||
|
|
//
|
||
|
|
// Note that the format choice affects only image data sent and not responses
|
||
|
|
// read via USBD_DFU_REQUEST_UPLOAD following USBLib-specific commands such
|
||
|
|
// as DFU_CMD_INFO.
|
||
|
|
//
|
||
|
|
//*****************************************************************************
|
||
|
|
typedef struct
|
||
|
|
{
|
||
|
|
//
|
||
|
|
// DFU_CMD_BIN
|
||
|
|
//
|
||
|
|
uint8_t ui8Command;
|
||
|
|
|
||
|
|
//
|
||
|
|
// Set to true to omit image header or false to include it (the default).
|
||
|
|
//
|
||
|
|
uint8_t ui8Binary;
|
||
|
|
|
||
|
|
//
|
||
|
|
// Reserved - set to 0.
|
||
|
|
//
|
||
|
|
uint8_t pui8Reserved[6];
|
||
|
|
}
|
||
|
|
PACKED tDFUDownloadBinHeader;
|
||
|
|
|
||
|
|
//*****************************************************************************
|
||
|
|
//
|
||
|
|
// The DFU_CMD_RESET command uses a tDFUDownloadHeader structure since
|
||
|
|
// only the ui8Command field is important. This command causes an immediate
|
||
|
|
// reset of the the target board.
|
||
|
|
//
|
||
|
|
//*****************************************************************************
|
||
|
|
|
||
|
|
//*****************************************************************************
|
||
|
|
//
|
||
|
|
//! Payload returned in response to the DFU_CMD_INFO command.
|
||
|
|
//!
|
||
|
|
//! This is structure is returned in response to the first
|
||
|
|
//! USBD_DFU_REQUEST_UPLOAD request following a DFU_CMD_INFO command.
|
||
|
|
//
|
||
|
|
//*****************************************************************************
|
||
|
|
typedef struct
|
||
|
|
{
|
||
|
|
//
|
||
|
|
//! The size of a flash block in bytes.
|
||
|
|
//
|
||
|
|
uint16_t ui16FlashBlockSize;
|
||
|
|
|
||
|
|
//
|
||
|
|
//! The number of blocks of flash in the device. Total flash size is
|
||
|
|
//! ui16NumFlashBlocks * ui16FlashBlockSize.
|
||
|
|
//
|
||
|
|
uint16_t ui16NumFlashBlocks;
|
||
|
|
|
||
|
|
//
|
||
|
|
//! Information on the part number, family, version and package as
|
||
|
|
//! read from SYSCTL register DID1.
|
||
|
|
//
|
||
|
|
uint32_t ui32PartInfo;
|
||
|
|
|
||
|
|
//
|
||
|
|
//! Information on the part class and revision as read from SYSCTL DID0.
|
||
|
|
//
|
||
|
|
uint32_t ui32ClassInfo;
|
||
|
|
|
||
|
|
//
|
||
|
|
//! Address 1 byte above the highest location the boot loader can access.
|
||
|
|
//
|
||
|
|
uint32_t ui32FlashTop;
|
||
|
|
|
||
|
|
//
|
||
|
|
//! Lowest address the boot loader can write or erase.
|
||
|
|
//
|
||
|
|
uint32_t ui32AppStartAddr;
|
||
|
|
}
|
||
|
|
PACKED tDFUDeviceInfo;
|
||
|
|
|
||
|
|
#ifdef ewarm
|
||
|
|
#pragma pack()
|
||
|
|
#endif
|
||
|
|
|
||
|
|
#endif // __USBDFU_H__
|