blob: 5598b67d4ba7584bf3b3524ead6b1630da238c38 [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
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* 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
{
public:
//////////// 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; }
CHIP_ERROR Init(OTADownloader * downloader);
static OTAImageProcessorImpl & GetDefaultInstance();
private:
//////////// 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;
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;
static bool mReset;
};
} // namespace chip