ota_platform_interface.h

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/*
 * AWS IoT Over-the-air Update v2.0.0 (Release Candidate)
 * Copyright (C) 2020 Amazon.com, Inc. or its affiliates.  All Rights Reserved.
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy of
 * this software and associated documentation files (the "Software"), to deal in
 * the Software without restriction, including without limitation the rights to
 * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
 * the Software, and to permit persons to whom the Software is furnished to do so,
 * subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in all
 * copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
 * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
 * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
 * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 */
 
#ifndef OTA_PLATFORM_INTERFACE
#define OTA_PLATFORM_INTERFACE
 
#include "ota_private.h"
 
typedef uint32_t   OtaPalStatus_t;
 
typedef uint32_t   OtaPalSubStatus_t;
 
typedef enum OtaPalMainStatus
{
    OtaPalSuccess = 0,          
    OtaPalUninitialized = 0xe0, 
    OtaPalOutOfMemory,          
    OtaPalNullFileContext,      
    OtaPalSignatureCheckFailed, 
    OtaPalRxFileCreateFailed,   
    OtaPalRxFileTooLarge,       
    OtaPalBootInfoCreateFailed, 
    OtaPalBadSignerCert,        
    OtaPalBadImageState,        
    OtaPalAbortFailed,          
    OtaPalRejectFailed,         
    OtaPalCommitFailed,         
    OtaPalActivateFailed,       
    OtaPalFileAbort,            
    OtaPalFileClose             
} OtaPalMainStatus_t;
 
/* @[define_ota_err_code_helpers] */
#define OTA_PAL_ERR_MASK    0xffffffUL                                                                                                        
#define OTA_PAL_SUB_BITS    24U                                                                                                               
#define OTA_PAL_MAIN_ERR( err )             ( ( OtaPalMainStatus_t ) ( uint32_t ) ( ( uint32_t ) ( err ) >> ( uint32_t ) OTA_PAL_SUB_BITS ) ) 
#define OTA_PAL_SUB_ERR( err )              ( ( uint32_t ) ( err ) & ( uint32_t ) OTA_PAL_ERR_MASK )                                          
#define OTA_PAL_COMBINE_ERR( main, sub )    ( ( uint32_t ) ( main ) << ( uint32_t ) OTA_PAL_SUB_BITS | ( uint32_t ) ( sub ) )                 
/* @[define_ota_err_code_helpers] */
 
typedef OtaPalStatus_t ( * OtaPalAbort_t )( OtaFileContext_t * const pFileContext );
 
typedef OtaPalStatus_t (* OtaPalCreateFileForRx_t)( OtaFileContext_t * const pFileContext );
 
typedef OtaPalStatus_t ( * OtaPalCloseFile_t )( OtaFileContext_t * const pFileContext );
 
typedef int16_t ( * OtaPalWriteBlock_t ) ( OtaFileContext_t * const pFileContext,
                                           uint32_t offset,
                                           uint8_t * const pData,
                                           uint32_t blockSize );
 
typedef OtaPalStatus_t ( * OtaPalActivateNewImage_t )( OtaFileContext_t * const pFileContext );
 
typedef OtaPalStatus_t ( * OtaPalResetDevice_t ) ( OtaFileContext_t * const pFileContext );
 
typedef OtaPalStatus_t ( * OtaPalSetPlatformImageState_t )( OtaFileContext_t * const pFileContext,
                                                            OtaImageState_t eState );
 
typedef OtaPalImageState_t ( * OtaPalGetPlatformImageState_t ) ( OtaFileContext_t * const pFileContext );
 
typedef struct OtaPalInterface
{
    /* MISRA rule 21.8 prohibits the use of abort from stdlib.h. However, this is merely one of the
     * OTA platform abstraction layer interfaces, which is used to abort an OTA update. So it's a
     * false positive. */
    /* coverity[misra_c_2012_rule_21_8_violation] */
    OtaPalAbort_t abort;                                 
    OtaPalCreateFileForRx_t createFile;                  
    OtaPalCloseFile_t closeFile;                         
    OtaPalWriteBlock_t writeBlock;                       
    OtaPalActivateNewImage_t activate;                   
    OtaPalResetDevice_t reset;                           
    OtaPalSetPlatformImageState_t setPlatformImageState; 
    OtaPalGetPlatformImageState_t getPlatformImageState; 
} OtaPalInterface_t;
 
#endif /* ifndef OTA_PLATFORM_INTERFACE */