blob: 30709bd7f32f3a037098e7c7bf06d565e6731e53 [file] [log] [blame]
* Copyright (c) 2021 Project CHIP Authors
* All rights reserved.
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* See the License for the specific language governing permissions and
* limitations under the License.
#pragma once
#include <app/clusters/ota-requestor/OTADownloader.h>
#include <lib/core/OTAImageHeader.h>
#include <platform/CHIPDeviceLayer.h>
#include <platform/OTAImageProcessor.h>
#include <fstream>
namespace chip {
class OTAImageProcessorImpl : public OTAImageProcessorInterface
//////////// OTAImageProcessorInterface Implementation ///////////////
CHIP_ERROR PrepareDownload() override;
CHIP_ERROR Finalize() override;
CHIP_ERROR Apply() override;
CHIP_ERROR Abort() override;
CHIP_ERROR ProcessBlock(ByteSpan & block) override;
bool IsFirstImageRun() override;
CHIP_ERROR ConfirmCurrentImage() override;
void SetOTADownloader(OTADownloader * downloader) { mDownloader = downloader; }
void SetOTAImageFile(const char * imageFile) { mImageFile = imageFile; }
//////////// Actual handlers for the OTAImageProcessorInterface ///////////////
static void HandlePrepareDownload(intptr_t context);
static void HandleFinalize(intptr_t context);
static void HandleApply(intptr_t context);
static void HandleAbort(intptr_t context);
static void HandleProcessBlock(intptr_t context);
CHIP_ERROR ProcessHeader(ByteSpan & block);
* Called to allocate memory for mBlock if necessary and set it to block
CHIP_ERROR SetBlock(ByteSpan & block);
* Called to release allocated memory for mBlock
CHIP_ERROR ReleaseBlock();
// EFR32 platform creates a single instance of OTAImageProcessorImpl class.
// If that changes then the use of static members and functions must be revisited
static uint32_t mWriteOffset; // End of last written block
static uint8_t mSlotId; // Bootloader storage slot
MutableByteSpan mBlock;
OTADownloader * mDownloader;
OTAImageHeaderParser mHeaderParser;
const char * mImageFile = nullptr;
static constexpr size_t kAlignmentBytes = 64;
// Intermediate, word-aligned buffer for writing to the bootloader storage.
// Bootloader storage API requires the buffer size to be a multiple of 4.
static uint8_t writeBuffer[kAlignmentBytes] __attribute__((aligned(4)));
// Offset indicates how far the write buffer has been filled
static uint16_t writeBufOffset;
} // namespace chip