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Add the Labs projects provided in the V10.2.1_191129 zip file.
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Richard Barry
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/*
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* FreeRTOS Kernel V10.0.1
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* Copyright (C) 2017 Amazon.com, Inc. or its affiliates. All Rights Reserved.
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy of
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* this software and associated documentation files (the "Software"), to deal in
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* the Software without restriction, including without limitation the rights to
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* use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
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* the Software, and to permit persons to whom the Software is furnished to do so,
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* subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in all
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* copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
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* FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
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* COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
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* IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
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* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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*
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* http://www.FreeRTOS.org
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* http://aws.amazon.com/freertos
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*
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* 1 tab == 4 spaces!
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*/
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/*******************************************************************************
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* See the URL in the comments within main.c for the location of the online
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* documentation.
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******************************************************************************/
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/* Standard includes. */
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#include <stdio.h>
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#include <string.h>
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/* FreeRTOS includes. */
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#include "FreeRTOS.h"
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/* File system includes. */
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#include "fat_sl.h"
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#include "api_mdriver_ram.h"
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/* 8.3 format, plus null terminator. */
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#define fsMAX_FILE_NAME_LEN 13
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/* The number of bytes read/written to the example files at a time. */
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#define fsRAM_BUFFER_SIZE 200
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/* The number of bytes written to the file that uses f_putc() and f_getc(). */
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#define fsPUTC_FILE_SIZE 100
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/*-----------------------------------------------------------*/
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/*
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* Creates and verifies different files on the volume, demonstrating the use of
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* various different API functions.
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*/
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void vCreateAndVerifySampleFiles( void );
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/*
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* Create a set of example files in the root directory of the volume using
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* f_write().
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*/
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static void prvCreateDemoFilesUsing_f_write( void );
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/*
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* Use f_read() to read back and verify the files that were created by
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* prvCreateDemoFilesUsing_f_write().
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*/
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static void prvVerifyDemoFileUsing_f_read( void );
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/*
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* Create an example file in a sub-directory using f_putc().
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*/
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static void prvCreateDemoFileUsing_f_putc( void );
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/*
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* Use f_getc() to read back and verify the file that was created by
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* prvCreateDemoFileUsing_f_putc().
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*/
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static void prvVerifyDemoFileUsing_f_getc( void );
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/*-----------------------------------------------------------*/
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/* A buffer used to both create content to write to disk, and read content back
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from a disk. Note there is no mutual exclusion on this buffer. */
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static char cRAMBuffer[ fsRAM_BUFFER_SIZE ];
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/* Names of directories that are created. */
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static const char *pcRoot = "/", *pcDirectory1 = "SUB1", *pcDirectory2 = "SUB2", *pcFullPath = "/SUB1/SUB2";
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/*-----------------------------------------------------------*/
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void vCreateAndVerifySampleFiles( void )
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{
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unsigned char ucStatus;
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/* First create the volume. */
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ucStatus = f_initvolume( ram_initfunc );
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/* It is expected that the volume is not formatted. */
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if( ucStatus == F_ERR_NOTFORMATTED )
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{
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/* Format the created volume. */
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ucStatus = f_format( F_FAT12_MEDIA );
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}
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if( ucStatus == F_NO_ERROR )
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{
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/* Create a set of files using f_write(). */
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prvCreateDemoFilesUsing_f_write();
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/* Read back and verify the files that were created using f_write(). */
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prvVerifyDemoFileUsing_f_read();
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/* Create sub directories two deep then create a file using putc. */
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prvCreateDemoFileUsing_f_putc();
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/* Read back and verify the file created by
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prvCreateDemoFileUsing_f_putc(). */
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prvVerifyDemoFileUsing_f_getc();
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}
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}
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/*-----------------------------------------------------------*/
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static void prvCreateDemoFilesUsing_f_write( void )
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{
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BaseType_t xFileNumber, xWriteNumber;
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char cFileName[ fsMAX_FILE_NAME_LEN ];
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const BaseType_t xMaxFiles = 5;
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long lItemsWritten;
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F_FILE *pxFile;
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/* Create xMaxFiles files. Each created file will be
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( xFileNumber * fsRAM_BUFFER_SIZE ) bytes in length, and filled
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with a different repeating character. */
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for( xFileNumber = 1; xFileNumber <= xMaxFiles; xFileNumber++ )
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{
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/* Generate a file name. */
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sprintf( cFileName, "root%03d.txt", ( int ) xFileNumber );
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/* Obtain the current working directory and print out the file name and
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the directory into which the file is being written. */
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f_getcwd( cRAMBuffer, fsRAM_BUFFER_SIZE );
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/* Open the file, creating the file if it does not already exist. */
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pxFile = f_open( cFileName, "w" );
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configASSERT( pxFile );
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/* Fill the RAM buffer with data that will be written to the file. This
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is just a repeating ascii character that indicates the file number. */
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memset( cRAMBuffer, ( int ) ( '0' + xFileNumber ), fsRAM_BUFFER_SIZE );
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/* Write the RAM buffer to the opened file a number of times. The
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number of times the RAM buffer is written to the file depends on the
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file number, so the length of each created file will be different. */
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for( xWriteNumber = 0; xWriteNumber < xFileNumber; xWriteNumber++ )
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{
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lItemsWritten = f_write( cRAMBuffer, fsRAM_BUFFER_SIZE, 1, pxFile );
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configASSERT( lItemsWritten == 1 );
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}
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/* Close the file so another file can be created. */
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f_close( pxFile );
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}
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}
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/*-----------------------------------------------------------*/
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static void prvVerifyDemoFileUsing_f_read( void )
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{
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BaseType_t xFileNumber, xReadNumber;
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char cFileName[ fsMAX_FILE_NAME_LEN ];
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const BaseType_t xMaxFiles = 5;
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long lItemsRead, lChar;
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F_FILE *pxFile;
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/* Read back the files that were created by
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prvCreateDemoFilesUsing_f_write(). */
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for( xFileNumber = 1; xFileNumber <= xMaxFiles; xFileNumber++ )
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{
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/* Generate the file name. */
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sprintf( cFileName, "root%03d.txt", ( int ) xFileNumber );
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/* Obtain the current working directory and print out the file name and
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the directory from which the file is being read. */
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f_getcwd( cRAMBuffer, fsRAM_BUFFER_SIZE );
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/* Open the file for reading. */
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pxFile = f_open( cFileName, "r" );
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configASSERT( pxFile );
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/* Read the file into the RAM buffer, checking the file contents are as
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expected. The size of the file depends on the file number. */
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for( xReadNumber = 0; xReadNumber < xFileNumber; xReadNumber++ )
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{
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/* Start with the RAM buffer clear. */
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memset( cRAMBuffer, 0x00, fsRAM_BUFFER_SIZE );
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lItemsRead = f_read( cRAMBuffer, fsRAM_BUFFER_SIZE, 1, pxFile );
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configASSERT( lItemsRead == 1 );
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/* Check the RAM buffer is filled with the expected data. Each
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file contains a different repeating ascii character that indicates
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the number of the file. */
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for( lChar = 0; lChar < fsRAM_BUFFER_SIZE; lChar++ )
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{
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configASSERT( cRAMBuffer[ lChar ] == ( '0' + ( char ) xFileNumber ) );
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}
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}
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/* Close the file. */
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f_close( pxFile );
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}
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}
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/*-----------------------------------------------------------*/
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static void prvCreateDemoFileUsing_f_putc( void )
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{
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unsigned char ucReturn;
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int iByte, iReturned;
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F_FILE *pxFile;
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char cFileName[ fsMAX_FILE_NAME_LEN ];
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/* Obtain and print out the working directory. */
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f_getcwd( cRAMBuffer, fsRAM_BUFFER_SIZE );
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/* Create a sub directory. */
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ucReturn = f_mkdir( pcDirectory1 );
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configASSERT( ucReturn == F_NO_ERROR );
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/* Move into the created sub-directory. */
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ucReturn = f_chdir( pcDirectory1 );
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configASSERT( ucReturn == F_NO_ERROR );
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/* Obtain and print out the working directory. */
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f_getcwd( cRAMBuffer, fsRAM_BUFFER_SIZE );
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/* Create a subdirectory in the new directory. */
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ucReturn = f_mkdir( pcDirectory2 );
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configASSERT( ucReturn == F_NO_ERROR );
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/* Move into the directory just created - now two directories down from
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the root. */
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ucReturn = f_chdir( pcDirectory2 );
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configASSERT( ucReturn == F_NO_ERROR );
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/* Obtain and print out the working directory. */
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f_getcwd( cRAMBuffer, fsRAM_BUFFER_SIZE );
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configASSERT( strcmp( cRAMBuffer, pcFullPath ) == 0 );
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/* Generate the file name. */
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sprintf( cFileName, "%s.txt", pcDirectory2 );
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/* Print out the file name and the directory into which the file is being
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written. */
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pxFile = f_open( cFileName, "w" );
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/* Create a file 1 byte at a time. The file is filled with incrementing
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ascii characters starting from '0'. */
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for( iByte = 0; iByte < fsPUTC_FILE_SIZE; iByte++ )
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{
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iReturned = f_putc( ( ( int ) '0' + iByte ), pxFile );
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configASSERT( iReturned == ( ( int ) '0' + iByte ) );
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}
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/* Finished so close the file. */
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f_close( pxFile );
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/* Move back to the root directory. */
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ucReturn = f_chdir( "../.." );
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configASSERT( ucReturn == F_NO_ERROR );
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/* Obtain and print out the working directory. */
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f_getcwd( cRAMBuffer, fsRAM_BUFFER_SIZE );
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configASSERT( strcmp( cRAMBuffer, pcRoot ) == 0 );
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}
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/*-----------------------------------------------------------*/
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static void prvVerifyDemoFileUsing_f_getc( void )
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{
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unsigned char ucReturn;
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int iByte, iReturned;
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F_FILE *pxFile;
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char cFileName[ fsMAX_FILE_NAME_LEN ];
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/* Move into the directory in which the file was created. */
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ucReturn = f_chdir( pcFullPath );
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configASSERT( ucReturn == F_NO_ERROR );
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/* Obtain and print out the working directory. */
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f_getcwd( cRAMBuffer, fsRAM_BUFFER_SIZE );
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configASSERT( strcmp( cRAMBuffer, pcFullPath ) == 0 );
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/* Generate the file name. */
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sprintf( cFileName, "%s.txt", pcDirectory2 );
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/* This time the file is opened for reading. */
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pxFile = f_open( cFileName, "r" );
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/* Read the file 1 byte at a time. */
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for( iByte = 0; iByte < fsPUTC_FILE_SIZE; iByte++ )
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{
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iReturned = f_getc( pxFile );
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configASSERT( iReturned == ( ( int ) '0' + iByte ) );
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}
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/* Finished so close the file. */
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f_close( pxFile );
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/* Move back to the root directory. */
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ucReturn = f_chdir( "../.." );
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configASSERT( ucReturn == F_NO_ERROR );
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/* Obtain and print out the working directory. */
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f_getcwd( cRAMBuffer, fsRAM_BUFFER_SIZE );
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}
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