From 071e02c6b6b4837fa9cf0b6d4c749994e02638d7 Mon Sep 17 00:00:00 2001 From: Dean Camera Date: Sat, 8 May 2010 03:12:14 +0000 Subject: Add svn:eol-style property to source files, so that the line endings are correctly converted to the target system's native end of line style. --- Projects/TemperatureDataLogger/Lib/DS1307.c | 248 +- Projects/TemperatureDataLogger/Lib/DS1307.h | 218 +- .../TemperatureDataLogger/Lib/DataflashManager.c | 1050 ++-- .../TemperatureDataLogger/Lib/DataflashManager.h | 162 +- .../TemperatureDataLogger/Lib/FATFs/00readme.txt | 220 +- Projects/TemperatureDataLogger/Lib/FATFs/diskio.c | 198 +- Projects/TemperatureDataLogger/Lib/FATFs/diskio.h | 142 +- Projects/TemperatureDataLogger/Lib/FATFs/ff.c | 6306 ++++++++++---------- Projects/TemperatureDataLogger/Lib/FATFs/ff.h | 1192 ++-- Projects/TemperatureDataLogger/Lib/FATFs/ffconf.h | 332 +- Projects/TemperatureDataLogger/Lib/FATFs/integer.h | 74 +- Projects/TemperatureDataLogger/Lib/SCSI.c | 562 +- Projects/TemperatureDataLogger/Lib/SCSI.h | 172 +- 13 files changed, 5438 insertions(+), 5438 deletions(-) (limited to 'Projects/TemperatureDataLogger/Lib') diff --git a/Projects/TemperatureDataLogger/Lib/DS1307.c b/Projects/TemperatureDataLogger/Lib/DS1307.c index 0c1d98f00..8aa6ad0ef 100644 --- a/Projects/TemperatureDataLogger/Lib/DS1307.c +++ b/Projects/TemperatureDataLogger/Lib/DS1307.c @@ -1,124 +1,124 @@ -/* - Copyright (C) Dean Camera, 2010. - - dean [at] fourwalledcubicle [dot] com - www.fourwalledcubicle.com -*/ - -#include "DS1307.h" - -void DS1307_SetDate(uint8_t Day, uint8_t Month, uint8_t Year) -{ -#if defined(DUMMY_RTC) - return; -#endif - - DS1307_DateRegs_t CurrentRTCDate; - CurrentRTCDate.Byte1.TenDay = (Day / 10); - CurrentRTCDate.Byte1.Day = (Day % 10); - CurrentRTCDate.Byte2.TenMonth = (Month / 10); - CurrentRTCDate.Byte2.Month = (Month % 10); - CurrentRTCDate.Byte3.TenYear = (Year / 10); - CurrentRTCDate.Byte3.Year = (Year % 10); - - if (TWI_StartTransmission(DS1307_ADDRESS_WRITE, 10)) - { - TWI_SendByte(DS1307_DATEREG_START); - TWI_SendByte(CurrentRTCDate.Byte1.IntVal); - TWI_SendByte(CurrentRTCDate.Byte2.IntVal); - TWI_SendByte(CurrentRTCDate.Byte3.IntVal); - - TWI_StopTransmission(); - } -} - -void DS1307_SetTime(uint8_t Hour, uint8_t Minute, uint8_t Second) -{ -#if defined(DUMMY_RTC) - return; -#endif - - DS1307_TimeRegs_t CurrentRTCTime; - CurrentRTCTime.Byte1.TenSec = (Second / 10); - CurrentRTCTime.Byte1.Sec = (Second % 10); - CurrentRTCTime.Byte1.CH = false; - CurrentRTCTime.Byte2.TenMin = (Minute / 10); - CurrentRTCTime.Byte2.Min = (Minute % 10); - CurrentRTCTime.Byte3.TenHour = (Hour / 10); - CurrentRTCTime.Byte3.Hour = (Hour % 10); - CurrentRTCTime.Byte3.TwelveHourMode = false; - - if (TWI_StartTransmission(DS1307_ADDRESS_WRITE, 10)) - { - TWI_SendByte(DS1307_TIMEREG_START); - TWI_SendByte(CurrentRTCTime.Byte1.IntVal); - TWI_SendByte(CurrentRTCTime.Byte2.IntVal); - TWI_SendByte(CurrentRTCTime.Byte3.IntVal); - - TWI_StopTransmission(); - } -} - -void DS1307_GetDate(uint8_t* Day, uint8_t* Month, uint8_t* Year) -{ -#if defined(DUMMY_RTC) - *Day = 1; - *Month = 1; - *Year = 1; - return; -#endif - - if (TWI_StartTransmission(DS1307_ADDRESS_WRITE, 10)) - { - TWI_SendByte(DS1307_DATEREG_START); - - TWI_StopTransmission(); - } - - DS1307_DateRegs_t CurrentRTCDate; - - if (TWI_StartTransmission(DS1307_ADDRESS_READ, 10)) - { - TWI_ReceiveByte(&CurrentRTCDate.Byte1.IntVal, false); - TWI_ReceiveByte(&CurrentRTCDate.Byte2.IntVal, false); - TWI_ReceiveByte(&CurrentRTCDate.Byte3.IntVal, true); - - TWI_StopTransmission(); - } - - *Day = (CurrentRTCDate.Byte1.TenDay * 10) + CurrentRTCDate.Byte1.Day; - *Month = (CurrentRTCDate.Byte2.TenMonth * 10) + CurrentRTCDate.Byte2.Month; - *Year = (CurrentRTCDate.Byte3.TenYear * 10) + CurrentRTCDate.Byte3.Year; -} - -void DS1307_GetTime(uint8_t* Hour, uint8_t* Minute, uint8_t* Second) -{ -#if defined(DUMMY_RTC) - *Hour = 1; - *Minute = 1; - *Second = 1; - return; -#endif - - if (TWI_StartTransmission(DS1307_ADDRESS_WRITE, 10)) - { - TWI_SendByte(DS1307_TIMEREG_START); - - TWI_StopTransmission(); - } - - DS1307_TimeRegs_t CurrentRTCTime; - - if (TWI_StartTransmission(DS1307_ADDRESS_READ, 10)) - { - TWI_ReceiveByte(&CurrentRTCTime.Byte1.IntVal, false); - TWI_ReceiveByte(&CurrentRTCTime.Byte2.IntVal, false); - TWI_ReceiveByte(&CurrentRTCTime.Byte3.IntVal, true); - - TWI_StopTransmission(); - } - - *Second = (CurrentRTCTime.Byte1.TenSec * 10) + CurrentRTCTime.Byte1.Sec; - *Minute = (CurrentRTCTime.Byte2.TenMin * 10) + CurrentRTCTime.Byte2.Min; - *Hour = (CurrentRTCTime.Byte3.TenHour * 10) + CurrentRTCTime.Byte3.Hour; -} +/* + Copyright (C) Dean Camera, 2010. + + dean [at] fourwalledcubicle [dot] com + www.fourwalledcubicle.com +*/ + +#include "DS1307.h" + +void DS1307_SetDate(uint8_t Day, uint8_t Month, uint8_t Year) +{ +#if defined(DUMMY_RTC) + return; +#endif + + DS1307_DateRegs_t CurrentRTCDate; + CurrentRTCDate.Byte1.TenDay = (Day / 10); + CurrentRTCDate.Byte1.Day = (Day % 10); + CurrentRTCDate.Byte2.TenMonth = (Month / 10); + CurrentRTCDate.Byte2.Month = (Month % 10); + CurrentRTCDate.Byte3.TenYear = (Year / 10); + CurrentRTCDate.Byte3.Year = (Year % 10); + + if (TWI_StartTransmission(DS1307_ADDRESS_WRITE, 10)) + { + TWI_SendByte(DS1307_DATEREG_START); + TWI_SendByte(CurrentRTCDate.Byte1.IntVal); + TWI_SendByte(CurrentRTCDate.Byte2.IntVal); + TWI_SendByte(CurrentRTCDate.Byte3.IntVal); + + TWI_StopTransmission(); + } +} + +void DS1307_SetTime(uint8_t Hour, uint8_t Minute, uint8_t Second) +{ +#if defined(DUMMY_RTC) + return; +#endif + + DS1307_TimeRegs_t CurrentRTCTime; + CurrentRTCTime.Byte1.TenSec = (Second / 10); + CurrentRTCTime.Byte1.Sec = (Second % 10); + CurrentRTCTime.Byte1.CH = false; + CurrentRTCTime.Byte2.TenMin = (Minute / 10); + CurrentRTCTime.Byte2.Min = (Minute % 10); + CurrentRTCTime.Byte3.TenHour = (Hour / 10); + CurrentRTCTime.Byte3.Hour = (Hour % 10); + CurrentRTCTime.Byte3.TwelveHourMode = false; + + if (TWI_StartTransmission(DS1307_ADDRESS_WRITE, 10)) + { + TWI_SendByte(DS1307_TIMEREG_START); + TWI_SendByte(CurrentRTCTime.Byte1.IntVal); + TWI_SendByte(CurrentRTCTime.Byte2.IntVal); + TWI_SendByte(CurrentRTCTime.Byte3.IntVal); + + TWI_StopTransmission(); + } +} + +void DS1307_GetDate(uint8_t* Day, uint8_t* Month, uint8_t* Year) +{ +#if defined(DUMMY_RTC) + *Day = 1; + *Month = 1; + *Year = 1; + return; +#endif + + if (TWI_StartTransmission(DS1307_ADDRESS_WRITE, 10)) + { + TWI_SendByte(DS1307_DATEREG_START); + + TWI_StopTransmission(); + } + + DS1307_DateRegs_t CurrentRTCDate; + + if (TWI_StartTransmission(DS1307_ADDRESS_READ, 10)) + { + TWI_ReceiveByte(&CurrentRTCDate.Byte1.IntVal, false); + TWI_ReceiveByte(&CurrentRTCDate.Byte2.IntVal, false); + TWI_ReceiveByte(&CurrentRTCDate.Byte3.IntVal, true); + + TWI_StopTransmission(); + } + + *Day = (CurrentRTCDate.Byte1.TenDay * 10) + CurrentRTCDate.Byte1.Day; + *Month = (CurrentRTCDate.Byte2.TenMonth * 10) + CurrentRTCDate.Byte2.Month; + *Year = (CurrentRTCDate.Byte3.TenYear * 10) + CurrentRTCDate.Byte3.Year; +} + +void DS1307_GetTime(uint8_t* Hour, uint8_t* Minute, uint8_t* Second) +{ +#if defined(DUMMY_RTC) + *Hour = 1; + *Minute = 1; + *Second = 1; + return; +#endif + + if (TWI_StartTransmission(DS1307_ADDRESS_WRITE, 10)) + { + TWI_SendByte(DS1307_TIMEREG_START); + + TWI_StopTransmission(); + } + + DS1307_TimeRegs_t CurrentRTCTime; + + if (TWI_StartTransmission(DS1307_ADDRESS_READ, 10)) + { + TWI_ReceiveByte(&CurrentRTCTime.Byte1.IntVal, false); + TWI_ReceiveByte(&CurrentRTCTime.Byte2.IntVal, false); + TWI_ReceiveByte(&CurrentRTCTime.Byte3.IntVal, true); + + TWI_StopTransmission(); + } + + *Second = (CurrentRTCTime.Byte1.TenSec * 10) + CurrentRTCTime.Byte1.Sec; + *Minute = (CurrentRTCTime.Byte2.TenMin * 10) + CurrentRTCTime.Byte2.Min; + *Hour = (CurrentRTCTime.Byte3.TenHour * 10) + CurrentRTCTime.Byte3.Hour; +} diff --git a/Projects/TemperatureDataLogger/Lib/DS1307.h b/Projects/TemperatureDataLogger/Lib/DS1307.h index 90b91e3e8..9b14ee467 100644 --- a/Projects/TemperatureDataLogger/Lib/DS1307.h +++ b/Projects/TemperatureDataLogger/Lib/DS1307.h @@ -1,109 +1,109 @@ -/* - Copyright (C) Dean Camera, 2010. - - dean [at] fourwalledcubicle [dot] com - www.fourwalledcubicle.com -*/ - -#ifndef _DS1307_H_ -#define _DS1307_H_ - - /* Includes: */ - #include - - #include - - /* Type Defines: */ - typedef struct - { - union - { - struct - { - unsigned int Sec : 4; - unsigned int TenSec : 3; - unsigned int CH : 1; - }; - - uint8_t IntVal; - } Byte1; - - union - { - struct - { - unsigned int Min : 4; - unsigned int TenMin : 3; - unsigned int _RESERVED : 1; - }; - - uint8_t IntVal; - } Byte2; - - union - { - struct - { - unsigned int Hour : 4; - unsigned int TenHour : 2; - unsigned int TwelveHourMode : 1; - unsigned int _RESERVED : 1; - }; - - uint8_t IntVal; - } Byte3; - } DS1307_TimeRegs_t; - - typedef struct - { - union - { - struct - { - unsigned int Day : 4; - unsigned int TenDay : 2; - unsigned int _RESERVED : 2; - }; - - uint8_t IntVal; - } Byte1; - - union - { - struct - { - unsigned int Month : 4; - unsigned int TenMonth : 1; - unsigned int _RESERVED : 3; - }; - - uint8_t IntVal; - } Byte2; - - union - { - struct - { - unsigned int Year : 4; - unsigned int TenYear : 4; - }; - - uint8_t IntVal; - } Byte3; - } DS1307_DateRegs_t; - - /* Macros: */ - #define DS1307_TIMEREG_START 0x00 - #define DS1307_DATEREG_START 0x04 - - #define DS1307_ADDRESS_READ 0b11010001 - #define DS1307_ADDRESS_WRITE 0b11010000 - - /* Function Prototypes: */ - void DS1307_SetDate(uint8_t Day, uint8_t Month, uint8_t Year); - void DS1307_SetTime(uint8_t Hour, uint8_t Minute, uint8_t Second); - - void DS1307_GetDate(uint8_t* Day, uint8_t* Month, uint8_t* Year); - void DS1307_GetTime(uint8_t* Hour, uint8_t* Minute, uint8_t* Second); - -#endif +/* + Copyright (C) Dean Camera, 2010. + + dean [at] fourwalledcubicle [dot] com + www.fourwalledcubicle.com +*/ + +#ifndef _DS1307_H_ +#define _DS1307_H_ + + /* Includes: */ + #include + + #include + + /* Type Defines: */ + typedef struct + { + union + { + struct + { + unsigned int Sec : 4; + unsigned int TenSec : 3; + unsigned int CH : 1; + }; + + uint8_t IntVal; + } Byte1; + + union + { + struct + { + unsigned int Min : 4; + unsigned int TenMin : 3; + unsigned int _RESERVED : 1; + }; + + uint8_t IntVal; + } Byte2; + + union + { + struct + { + unsigned int Hour : 4; + unsigned int TenHour : 2; + unsigned int TwelveHourMode : 1; + unsigned int _RESERVED : 1; + }; + + uint8_t IntVal; + } Byte3; + } DS1307_TimeRegs_t; + + typedef struct + { + union + { + struct + { + unsigned int Day : 4; + unsigned int TenDay : 2; + unsigned int _RESERVED : 2; + }; + + uint8_t IntVal; + } Byte1; + + union + { + struct + { + unsigned int Month : 4; + unsigned int TenMonth : 1; + unsigned int _RESERVED : 3; + }; + + uint8_t IntVal; + } Byte2; + + union + { + struct + { + unsigned int Year : 4; + unsigned int TenYear : 4; + }; + + uint8_t IntVal; + } Byte3; + } DS1307_DateRegs_t; + + /* Macros: */ + #define DS1307_TIMEREG_START 0x00 + #define DS1307_DATEREG_START 0x04 + + #define DS1307_ADDRESS_READ 0b11010001 + #define DS1307_ADDRESS_WRITE 0b11010000 + + /* Function Prototypes: */ + void DS1307_SetDate(uint8_t Day, uint8_t Month, uint8_t Year); + void DS1307_SetTime(uint8_t Hour, uint8_t Minute, uint8_t Second); + + void DS1307_GetDate(uint8_t* Day, uint8_t* Month, uint8_t* Year); + void DS1307_GetTime(uint8_t* Hour, uint8_t* Minute, uint8_t* Second); + +#endif diff --git a/Projects/TemperatureDataLogger/Lib/DataflashManager.c b/Projects/TemperatureDataLogger/Lib/DataflashManager.c index da57e7f49..48c4fa7e6 100644 --- a/Projects/TemperatureDataLogger/Lib/DataflashManager.c +++ b/Projects/TemperatureDataLogger/Lib/DataflashManager.c @@ -1,525 +1,525 @@ -/* - LUFA Library - Copyright (C) Dean Camera, 2010. - - dean [at] fourwalledcubicle [dot] com - www.fourwalledcubicle.com -*/ - -/* - Copyright 2010 Dean Camera (dean [at] fourwalledcubicle [dot] com) - - Permission to use, copy, modify, distribute, and sell this - software and its documentation for any purpose is hereby granted - without fee, provided that the above copyright notice appear in - all copies and that both that the copyright notice and this - permission notice and warranty disclaimer appear in supporting - documentation, and that the name of the author not be used in - advertising or publicity pertaining to distribution of the - software without specific, written prior permission. - - The author disclaim all warranties with regard to this - software, including all implied warranties of merchantability - and fitness. In no event shall the author be liable for any - special, indirect or consequential damages or any damages - whatsoever resulting from loss of use, data or profits, whether - in an action of contract, negligence or other tortious action, - arising out of or in connection with the use or performance of - this software. -*/ - -/** \file - * - * Functions to manage the physical dataflash media, including reading and writing of - * blocks of data. These functions are called by the SCSI layer when data must be stored - * or retrieved to/from the physical storage media. If a different media is used (such - * as a SD card or EEPROM), functions similar to these will need to be generated. - */ - -#define INCLUDE_FROM_DATAFLASHMANAGER_C -#include "DataflashManager.h" - -/** Writes blocks (OS blocks, not Dataflash pages) to the storage medium, the board dataflash IC(s), from - * the pre-selected data OUT endpoint. This routine reads in OS sized blocks from the endpoint and writes - * them to the dataflash in Dataflash page sized blocks. - * - * \param[in] MSInterfaceInfo Pointer to a structure containing a Mass Storage Class configuration and state - * \param[in] BlockAddress Data block starting address for the write sequence - * \param[in] TotalBlocks Number of blocks of data to write - */ -void DataflashManager_WriteBlocks(USB_ClassInfo_MS_Device_t* const MSInterfaceInfo, const uint32_t BlockAddress, uint16_t TotalBlocks) -{ - uint16_t CurrDFPage = ((BlockAddress * VIRTUAL_MEMORY_BLOCK_SIZE) / DATAFLASH_PAGE_SIZE); - uint16_t CurrDFPageByte = ((BlockAddress * VIRTUAL_MEMORY_BLOCK_SIZE) % DATAFLASH_PAGE_SIZE); - uint8_t CurrDFPageByteDiv16 = (CurrDFPageByte >> 4); - bool UsingSecondBuffer = false; - - /* Select the correct starting Dataflash IC for the block requested */ - Dataflash_SelectChipFromPage(CurrDFPage); - -#if (DATAFLASH_PAGE_SIZE > VIRTUAL_MEMORY_BLOCK_SIZE) - /* Copy selected dataflash's current page contents to the dataflash buffer */ - Dataflash_SendByte(DF_CMD_MAINMEMTOBUFF1); - Dataflash_SendAddressBytes(CurrDFPage, 0); - Dataflash_WaitWhileBusy(); -#endif - - /* Send the dataflash buffer write command */ - Dataflash_SendByte(DF_CMD_BUFF1WRITE); - Dataflash_SendAddressBytes(0, CurrDFPageByte); - - /* Wait until endpoint is ready before continuing */ - if (Endpoint_WaitUntilReady()) - return; - - while (TotalBlocks) - { - uint8_t BytesInBlockDiv16 = 0; - - /* Write an endpoint packet sized data block to the dataflash */ - while (BytesInBlockDiv16 < (VIRTUAL_MEMORY_BLOCK_SIZE >> 4)) - { - /* Check if the endpoint is currently empty */ - if (!(Endpoint_IsReadWriteAllowed())) - { - /* Clear the current endpoint bank */ - Endpoint_ClearOUT(); - - /* Wait until the host has sent another packet */ - if (Endpoint_WaitUntilReady()) - return; - } - - /* Check if end of dataflash page reached */ - if (CurrDFPageByteDiv16 == (DATAFLASH_PAGE_SIZE >> 4)) - { - /* Write the dataflash buffer contents back to the dataflash page */ - Dataflash_WaitWhileBusy(); - Dataflash_SendByte(UsingSecondBuffer ? DF_CMD_BUFF2TOMAINMEMWITHERASE : DF_CMD_BUFF1TOMAINMEMWITHERASE); - Dataflash_SendAddressBytes(CurrDFPage, 0); - - /* Reset the dataflash buffer counter, increment the page counter */ - CurrDFPageByteDiv16 = 0; - CurrDFPage++; - - /* Once all the dataflash ICs have had their first buffers filled, switch buffers to maintain throughput */ - if (Dataflash_GetSelectedChip() == DATAFLASH_CHIP_MASK(DATAFLASH_TOTALCHIPS)) - UsingSecondBuffer = !(UsingSecondBuffer); - - /* Select the next dataflash chip based on the new dataflash page index */ - Dataflash_SelectChipFromPage(CurrDFPage); - -#if (DATAFLASH_PAGE_SIZE > VIRTUAL_MEMORY_BLOCK_SIZE) - /* If less than one dataflash page remaining, copy over the existing page to preserve trailing data */ - if ((TotalBlocks * (VIRTUAL_MEMORY_BLOCK_SIZE >> 4)) < (DATAFLASH_PAGE_SIZE >> 4)) - { - /* Copy selected dataflash's current page contents to the dataflash buffer */ - Dataflash_WaitWhileBusy(); - Dataflash_SendByte(UsingSecondBuffer ? DF_CMD_MAINMEMTOBUFF2 : DF_CMD_MAINMEMTOBUFF1); - Dataflash_SendAddressBytes(CurrDFPage, 0); - Dataflash_WaitWhileBusy(); - } -#endif - - /* Send the dataflash buffer write command */ - Dataflash_SendByte(UsingSecondBuffer ? DF_CMD_BUFF2WRITE : DF_CMD_BUFF1WRITE); - Dataflash_SendAddressBytes(0, 0); - } - - /* Write one 16-byte chunk of data to the dataflash */ - Dataflash_SendByte(Endpoint_Read_Byte()); - Dataflash_SendByte(Endpoint_Read_Byte()); - Dataflash_SendByte(Endpoint_Read_Byte()); - Dataflash_SendByte(Endpoint_Read_Byte()); - Dataflash_SendByte(Endpoint_Read_Byte()); - Dataflash_SendByte(Endpoint_Read_Byte()); - Dataflash_SendByte(Endpoint_Read_Byte()); - Dataflash_SendByte(Endpoint_Read_Byte()); - Dataflash_SendByte(Endpoint_Read_Byte()); - Dataflash_SendByte(Endpoint_Read_Byte()); - Dataflash_SendByte(Endpoint_Read_Byte()); - Dataflash_SendByte(Endpoint_Read_Byte()); - Dataflash_SendByte(Endpoint_Read_Byte()); - Dataflash_SendByte(Endpoint_Read_Byte()); - Dataflash_SendByte(Endpoint_Read_Byte()); - Dataflash_SendByte(Endpoint_Read_Byte()); - - /* Increment the dataflash page 16 byte block counter */ - CurrDFPageByteDiv16++; - - /* Increment the block 16 byte block counter */ - BytesInBlockDiv16++; - - /* Check if the current command is being aborted by the host */ - if (MSInterfaceInfo->State.IsMassStoreReset) - return; - } - - /* Decrement the blocks remaining counter and reset the sub block counter */ - TotalBlocks--; - } - - /* Write the dataflash buffer contents back to the dataflash page */ - Dataflash_WaitWhileBusy(); - Dataflash_SendByte(UsingSecondBuffer ? DF_CMD_BUFF2TOMAINMEMWITHERASE : DF_CMD_BUFF1TOMAINMEMWITHERASE); - Dataflash_SendAddressBytes(CurrDFPage, 0x00); - Dataflash_WaitWhileBusy(); - - /* If the endpoint is empty, clear it ready for the next packet from the host */ - if (!(Endpoint_IsReadWriteAllowed())) - Endpoint_ClearOUT(); - - /* Deselect all dataflash chips */ - Dataflash_DeselectChip(); -} - -/** Reads blocks (OS blocks, not Dataflash pages) from the storage medium, the board dataflash IC(s), into - * the pre-selected data IN endpoint. This routine reads in Dataflash page sized blocks from the Dataflash - * and writes them in OS sized blocks to the endpoint. - * - * \param[in] MSInterfaceInfo Pointer to a structure containing a Mass Storage Class configuration and state - * \param[in] BlockAddress Data block starting address for the read sequence - * \param[in] TotalBlocks Number of blocks of data to read - */ -void DataflashManager_ReadBlocks(USB_ClassInfo_MS_Device_t* const MSInterfaceInfo, const uint32_t BlockAddress, uint16_t TotalBlocks) -{ - uint16_t CurrDFPage = ((BlockAddress * VIRTUAL_MEMORY_BLOCK_SIZE) / DATAFLASH_PAGE_SIZE); - uint16_t CurrDFPageByte = ((BlockAddress * VIRTUAL_MEMORY_BLOCK_SIZE) % DATAFLASH_PAGE_SIZE); - uint8_t CurrDFPageByteDiv16 = (CurrDFPageByte >> 4); - - /* Select the correct starting Dataflash IC for the block requested */ - Dataflash_SelectChipFromPage(CurrDFPage); - - /* Send the dataflash main memory page read command */ - Dataflash_SendByte(DF_CMD_MAINMEMPAGEREAD); - Dataflash_SendAddressBytes(CurrDFPage, CurrDFPageByte); - Dataflash_SendByte(0x00); - Dataflash_SendByte(0x00); - Dataflash_SendByte(0x00); - Dataflash_SendByte(0x00); - - /* Wait until endpoint is ready before continuing */ - if (Endpoint_WaitUntilReady()) - return; - - while (TotalBlocks) - { - uint8_t BytesInBlockDiv16 = 0; - - /* Write an endpoint packet sized data block to the dataflash */ - while (BytesInBlockDiv16 < (VIRTUAL_MEMORY_BLOCK_SIZE >> 4)) - { - /* Check if the endpoint is currently full */ - if (!(Endpoint_IsReadWriteAllowed())) - { - /* Clear the endpoint bank to send its contents to the host */ - Endpoint_ClearIN(); - - /* Wait until the endpoint is ready for more data */ - if (Endpoint_WaitUntilReady()) - return; - } - - /* Check if end of dataflash page reached */ - if (CurrDFPageByteDiv16 == (DATAFLASH_PAGE_SIZE >> 4)) - { - /* Reset the dataflash buffer counter, increment the page counter */ - CurrDFPageByteDiv16 = 0; - CurrDFPage++; - - /* Select the next dataflash chip based on the new dataflash page index */ - Dataflash_SelectChipFromPage(CurrDFPage); - - /* Send the dataflash main memory page read command */ - Dataflash_SendByte(DF_CMD_MAINMEMPAGEREAD); - Dataflash_SendAddressBytes(CurrDFPage, 0); - Dataflash_SendByte(0x00); - Dataflash_SendByte(0x00); - Dataflash_SendByte(0x00); - Dataflash_SendByte(0x00); - } - - /* Read one 16-byte chunk of data from the dataflash */ - Endpoint_Write_Byte(Dataflash_ReceiveByte()); - Endpoint_Write_Byte(Dataflash_ReceiveByte()); - Endpoint_Write_Byte(Dataflash_ReceiveByte()); - Endpoint_Write_Byte(Dataflash_ReceiveByte()); - Endpoint_Write_Byte(Dataflash_ReceiveByte()); - Endpoint_Write_Byte(Dataflash_ReceiveByte()); - Endpoint_Write_Byte(Dataflash_ReceiveByte()); - Endpoint_Write_Byte(Dataflash_ReceiveByte()); - Endpoint_Write_Byte(Dataflash_ReceiveByte()); - Endpoint_Write_Byte(Dataflash_ReceiveByte()); - Endpoint_Write_Byte(Dataflash_ReceiveByte()); - Endpoint_Write_Byte(Dataflash_ReceiveByte()); - Endpoint_Write_Byte(Dataflash_ReceiveByte()); - Endpoint_Write_Byte(Dataflash_ReceiveByte()); - Endpoint_Write_Byte(Dataflash_ReceiveByte()); - Endpoint_Write_Byte(Dataflash_ReceiveByte()); - - /* Increment the dataflash page 16 byte block counter */ - CurrDFPageByteDiv16++; - - /* Increment the block 16 byte block counter */ - BytesInBlockDiv16++; - - /* Check if the current command is being aborted by the host */ - if (MSInterfaceInfo->State.IsMassStoreReset) - return; - } - - /* Decrement the blocks remaining counter */ - TotalBlocks--; - } - - /* If the endpoint is full, send its contents to the host */ - if (!(Endpoint_IsReadWriteAllowed())) - Endpoint_ClearIN(); - - /* Deselect all dataflash chips */ - Dataflash_DeselectChip(); -} - -/** Writes blocks (OS blocks, not Dataflash pages) to the storage medium, the board dataflash IC(s), from - * the a given RAM buffer. This routine reads in OS sized blocks from the buffer and writes them to the - * dataflash in Dataflash page sized blocks. This can be linked to FAT libraries to write files to the - * dataflash. - * - * \param[in] BlockAddress Data block starting address for the write sequence - * \param[in] TotalBlocks Number of blocks of data to write - * \param[in] BufferPtr Pointer to the data source RAM buffer - */ -void DataflashManager_WriteBlocks_RAM(const uint32_t BlockAddress, uint16_t TotalBlocks, const uint8_t* BufferPtr) -{ - uint16_t CurrDFPage = ((BlockAddress * VIRTUAL_MEMORY_BLOCK_SIZE) / DATAFLASH_PAGE_SIZE); - uint16_t CurrDFPageByte = ((BlockAddress * VIRTUAL_MEMORY_BLOCK_SIZE) % DATAFLASH_PAGE_SIZE); - uint8_t CurrDFPageByteDiv16 = (CurrDFPageByte >> 4); - bool UsingSecondBuffer = false; - - /* Select the correct starting Dataflash IC for the block requested */ - Dataflash_SelectChipFromPage(CurrDFPage); - -#if (DATAFLASH_PAGE_SIZE > VIRTUAL_MEMORY_BLOCK_SIZE) - /* Copy selected dataflash's current page contents to the dataflash buffer */ - Dataflash_SendByte(DF_CMD_MAINMEMTOBUFF1); - Dataflash_SendAddressBytes(CurrDFPage, 0); - Dataflash_WaitWhileBusy(); -#endif - - /* Send the dataflash buffer write command */ - Dataflash_SendByte(DF_CMD_BUFF1WRITE); - Dataflash_SendAddressBytes(0, CurrDFPageByte); - - while (TotalBlocks) - { - uint8_t BytesInBlockDiv16 = 0; - - /* Write an endpoint packet sized data block to the dataflash */ - while (BytesInBlockDiv16 < (VIRTUAL_MEMORY_BLOCK_SIZE >> 4)) - { - /* Check if end of dataflash page reached */ - if (CurrDFPageByteDiv16 == (DATAFLASH_PAGE_SIZE >> 4)) - { - /* Write the dataflash buffer contents back to the dataflash page */ - Dataflash_WaitWhileBusy(); - Dataflash_SendByte(UsingSecondBuffer ? DF_CMD_BUFF2TOMAINMEMWITHERASE : DF_CMD_BUFF1TOMAINMEMWITHERASE); - Dataflash_SendAddressBytes(CurrDFPage, 0); - - /* Reset the dataflash buffer counter, increment the page counter */ - CurrDFPageByteDiv16 = 0; - CurrDFPage++; - - /* Once all the dataflash ICs have had their first buffers filled, switch buffers to maintain throughput */ - if (Dataflash_GetSelectedChip() == DATAFLASH_CHIP_MASK(DATAFLASH_TOTALCHIPS)) - UsingSecondBuffer = !(UsingSecondBuffer); - - /* Select the next dataflash chip based on the new dataflash page index */ - Dataflash_SelectChipFromPage(CurrDFPage); - -#if (DATAFLASH_PAGE_SIZE > VIRTUAL_MEMORY_BLOCK_SIZE) - /* If less than one dataflash page remaining, copy over the existing page to preserve trailing data */ - if ((TotalBlocks * (VIRTUAL_MEMORY_BLOCK_SIZE >> 4)) < (DATAFLASH_PAGE_SIZE >> 4)) - { - /* Copy selected dataflash's current page contents to the dataflash buffer */ - Dataflash_WaitWhileBusy(); - Dataflash_SendByte(UsingSecondBuffer ? DF_CMD_MAINMEMTOBUFF2 : DF_CMD_MAINMEMTOBUFF1); - Dataflash_SendAddressBytes(CurrDFPage, 0); - Dataflash_WaitWhileBusy(); - } -#endif - - /* Send the dataflash buffer write command */ - Dataflash_ToggleSelectedChipCS(); - Dataflash_SendByte(DF_CMD_BUFF1WRITE); - Dataflash_SendAddressBytes(0, 0); - } - - /* Write one 16-byte chunk of data to the dataflash */ - for (uint8_t ByteNum = 0; ByteNum < 16; ByteNum++) - Dataflash_SendByte(*(BufferPtr++)); - - /* Increment the dataflash page 16 byte block counter */ - CurrDFPageByteDiv16++; - - /* Increment the block 16 byte block counter */ - BytesInBlockDiv16++; - } - - /* Decrement the blocks remaining counter and reset the sub block counter */ - TotalBlocks--; - } - - /* Write the dataflash buffer contents back to the dataflash page */ - Dataflash_WaitWhileBusy(); - Dataflash_SendByte(UsingSecondBuffer ? DF_CMD_BUFF2TOMAINMEMWITHERASE : DF_CMD_BUFF1TOMAINMEMWITHERASE); - Dataflash_SendAddressBytes(CurrDFPage, 0x00); - Dataflash_WaitWhileBusy(); - - /* Deselect all dataflash chips */ - Dataflash_DeselectChip(); -} - -/** Reads blocks (OS blocks, not Dataflash pages) from the storage medium, the board dataflash IC(s), into - * the a preallocated RAM buffer. This routine reads in Dataflash page sized blocks from the Dataflash - * and writes them in OS sized blocks to the given buffer. This can be linked to FAT libraries to read - * the files stored on the dataflash. - * - * \param[in] BlockAddress Data block starting address for the read sequence - * \param[in] TotalBlocks Number of blocks of data to read - * \param[out] BufferPtr Pointer to the data destination RAM buffer - */ -void DataflashManager_ReadBlocks_RAM(const uint32_t BlockAddress, uint16_t TotalBlocks, uint8_t* BufferPtr) -{ - uint16_t CurrDFPage = ((BlockAddress * VIRTUAL_MEMORY_BLOCK_SIZE) / DATAFLASH_PAGE_SIZE); - uint16_t CurrDFPageByte = ((BlockAddress * VIRTUAL_MEMORY_BLOCK_SIZE) % DATAFLASH_PAGE_SIZE); - uint8_t CurrDFPageByteDiv16 = (CurrDFPageByte >> 4); - - /* Select the correct starting Dataflash IC for the block requested */ - Dataflash_SelectChipFromPage(CurrDFPage); - - /* Send the dataflash main memory page read command */ - Dataflash_SendByte(DF_CMD_MAINMEMPAGEREAD); - Dataflash_SendAddressBytes(CurrDFPage, CurrDFPageByte); - Dataflash_SendByte(0x00); - Dataflash_SendByte(0x00); - Dataflash_SendByte(0x00); - Dataflash_SendByte(0x00); - - while (TotalBlocks) - { - uint8_t BytesInBlockDiv16 = 0; - - /* Write an endpoint packet sized data block to the dataflash */ - while (BytesInBlockDiv16 < (VIRTUAL_MEMORY_BLOCK_SIZE >> 4)) - { - /* Check if end of dataflash page reached */ - if (CurrDFPageByteDiv16 == (DATAFLASH_PAGE_SIZE >> 4)) - { - /* Reset the dataflash buffer counter, increment the page counter */ - CurrDFPageByteDiv16 = 0; - CurrDFPage++; - - /* Select the next dataflash chip based on the new dataflash page index */ - Dataflash_SelectChipFromPage(CurrDFPage); - - /* Send the dataflash main memory page read command */ - Dataflash_SendByte(DF_CMD_MAINMEMPAGEREAD); - Dataflash_SendAddressBytes(CurrDFPage, 0); - Dataflash_SendByte(0x00); - Dataflash_SendByte(0x00); - Dataflash_SendByte(0x00); - Dataflash_SendByte(0x00); - } - - /* Read one 16-byte chunk of data from the dataflash */ - for (uint8_t ByteNum = 0; ByteNum < 16; ByteNum++) - *(BufferPtr++) = Dataflash_ReceiveByte(); - - /* Increment the dataflash page 16 byte block counter */ - CurrDFPageByteDiv16++; - - /* Increment the block 16 byte block counter */ - BytesInBlockDiv16++; - } - - /* Decrement the blocks remaining counter */ - TotalBlocks--; - } - - /* Deselect all dataflash chips */ - Dataflash_DeselectChip(); -} - -/** Disables the dataflash memory write protection bits on the board Dataflash ICs, if enabled. */ -void DataflashManager_ResetDataflashProtections(void) -{ - /* Select first dataflash chip, send the read status register command */ - Dataflash_SelectChip(DATAFLASH_CHIP1); - Dataflash_SendByte(DF_CMD_GETSTATUS); - - /* Check if sector protection is enabled */ - if (Dataflash_ReceiveByte() & DF_STATUS_SECTORPROTECTION_ON) - { - Dataflash_ToggleSelectedChipCS(); - - /* Send the commands to disable sector protection */ - Dataflash_SendByte(DF_CMD_SECTORPROTECTIONOFF[0]); - Dataflash_SendByte(DF_CMD_SECTORPROTECTIONOFF[1]); - Dataflash_SendByte(DF_CMD_SECTORPROTECTIONOFF[2]); - Dataflash_SendByte(DF_CMD_SECTORPROTECTIONOFF[3]); - } - - /* Select second dataflash chip (if present on selected board), send read status register command */ - #if (DATAFLASH_TOTALCHIPS == 2) - Dataflash_SelectChip(DATAFLASH_CHIP2); - Dataflash_SendByte(DF_CMD_GETSTATUS); - - /* Check if sector protection is enabled */ - if (Dataflash_ReceiveByte() & DF_STATUS_SECTORPROTECTION_ON) - { - Dataflash_ToggleSelectedChipCS(); - - /* Send the commands to disable sector protection */ - Dataflash_SendByte(DF_CMD_SECTORPROTECTIONOFF[0]); - Dataflash_SendByte(DF_CMD_SECTORPROTECTIONOFF[1]); - Dataflash_SendByte(DF_CMD_SECTORPROTECTIONOFF[2]); - Dataflash_SendByte(DF_CMD_SECTORPROTECTIONOFF[3]); - } - #endif - - /* Deselect current dataflash chip */ - Dataflash_DeselectChip(); -} - -/** Performs a simple test on the attached Dataflash IC(s) to ensure that they are working. - * - * \return Boolean true if all media chips are working, false otherwise - */ -bool DataflashManager_CheckDataflashOperation(void) -{ - uint8_t ReturnByte; - - /* Test first Dataflash IC is present and responding to commands */ - Dataflash_SelectChip(DATAFLASH_CHIP1); - Dataflash_SendByte(DF_CMD_READMANUFACTURERDEVICEINFO); - ReturnByte = Dataflash_ReceiveByte(); - Dataflash_DeselectChip(); - - /* If returned data is invalid, fail the command */ - if (ReturnByte != DF_MANUFACTURER_ATMEL) - return false; - - #if (DATAFLASH_TOTALCHIPS == 2) - /* Test second Dataflash IC is present and responding to commands */ - Dataflash_SelectChip(DATAFLASH_CHIP2); - Dataflash_SendByte(DF_CMD_READMANUFACTURERDEVICEINFO); - ReturnByte = Dataflash_ReceiveByte(); - Dataflash_DeselectChip(); - - /* If returned data is invalid, fail the command */ - if (ReturnByte != DF_MANUFACTURER_ATMEL) - return false; - #endif - - return true; -} +/* + LUFA Library + Copyright (C) Dean Camera, 2010. + + dean [at] fourwalledcubicle [dot] com + www.fourwalledcubicle.com +*/ + +/* + Copyright 2010 Dean Camera (dean [at] fourwalledcubicle [dot] com) + + Permission to use, copy, modify, distribute, and sell this + software and its documentation for any purpose is hereby granted + without fee, provided that the above copyright notice appear in + all copies and that both that the copyright notice and this + permission notice and warranty disclaimer appear in supporting + documentation, and that the name of the author not be used in + advertising or publicity pertaining to distribution of the + software without specific, written prior permission. + + The author disclaim all warranties with regard to this + software, including all implied warranties of merchantability + and fitness. In no event shall the author be liable for any + special, indirect or consequential damages or any damages + whatsoever resulting from loss of use, data or profits, whether + in an action of contract, negligence or other tortious action, + arising out of or in connection with the use or performance of + this software. +*/ + +/** \file + * + * Functions to manage the physical dataflash media, including reading and writing of + * blocks of data. These functions are called by the SCSI layer when data must be stored + * or retrieved to/from the physical storage media. If a different media is used (such + * as a SD card or EEPROM), functions similar to these will need to be generated. + */ + +#define INCLUDE_FROM_DATAFLASHMANAGER_C +#include "DataflashManager.h" + +/** Writes blocks (OS blocks, not Dataflash pages) to the storage medium, the board dataflash IC(s), from + * the pre-selected data OUT endpoint. This routine reads in OS sized blocks from the endpoint and writes + * them to the dataflash in Dataflash page sized blocks. + * + * \param[in] MSInterfaceInfo Pointer to a structure containing a Mass Storage Class configuration and state + * \param[in] BlockAddress Data block starting address for the write sequence + * \param[in] TotalBlocks Number of blocks of data to write + */ +void DataflashManager_WriteBlocks(USB_ClassInfo_MS_Device_t* const MSInterfaceInfo, const uint32_t BlockAddress, uint16_t TotalBlocks) +{ + uint16_t CurrDFPage = ((BlockAddress * VIRTUAL_MEMORY_BLOCK_SIZE) / DATAFLASH_PAGE_SIZE); + uint16_t CurrDFPageByte = ((BlockAddress * VIRTUAL_MEMORY_BLOCK_SIZE) % DATAFLASH_PAGE_SIZE); + uint8_t CurrDFPageByteDiv16 = (CurrDFPageByte >> 4); + bool UsingSecondBuffer = false; + + /* Select the correct starting Dataflash IC for the block requested */ + Dataflash_SelectChipFromPage(CurrDFPage); + +#if (DATAFLASH_PAGE_SIZE > VIRTUAL_MEMORY_BLOCK_SIZE) + /* Copy selected dataflash's current page contents to the dataflash buffer */ + Dataflash_SendByte(DF_CMD_MAINMEMTOBUFF1); + Dataflash_SendAddressBytes(CurrDFPage, 0); + Dataflash_WaitWhileBusy(); +#endif + + /* Send the dataflash buffer write command */ + Dataflash_SendByte(DF_CMD_BUFF1WRITE); + Dataflash_SendAddressBytes(0, CurrDFPageByte); + + /* Wait until endpoint is ready before continuing */ + if (Endpoint_WaitUntilReady()) + return; + + while (TotalBlocks) + { + uint8_t BytesInBlockDiv16 = 0; + + /* Write an endpoint packet sized data block to the dataflash */ + while (BytesInBlockDiv16 < (VIRTUAL_MEMORY_BLOCK_SIZE >> 4)) + { + /* Check if the endpoint is currently empty */ + if (!(Endpoint_IsReadWriteAllowed())) + { + /* Clear the current endpoint bank */ + Endpoint_ClearOUT(); + + /* Wait until the host has sent another packet */ + if (Endpoint_WaitUntilReady()) + return; + } + + /* Check if end of dataflash page reached */ + if (CurrDFPageByteDiv16 == (DATAFLASH_PAGE_SIZE >> 4)) + { + /* Write the dataflash buffer contents back to the dataflash page */ + Dataflash_WaitWhileBusy(); + Dataflash_SendByte(UsingSecondBuffer ? DF_CMD_BUFF2TOMAINMEMWITHERASE : DF_CMD_BUFF1TOMAINMEMWITHERASE); + Dataflash_SendAddressBytes(CurrDFPage, 0); + + /* Reset the dataflash buffer counter, increment the page counter */ + CurrDFPageByteDiv16 = 0; + CurrDFPage++; + + /* Once all the dataflash ICs have had their first buffers filled, switch buffers to maintain throughput */ + if (Dataflash_GetSelectedChip() == DATAFLASH_CHIP_MASK(DATAFLASH_TOTALCHIPS)) + UsingSecondBuffer = !(UsingSecondBuffer); + + /* Select the next dataflash chip based on the new dataflash page index */ + Dataflash_SelectChipFromPage(CurrDFPage); + +#if (DATAFLASH_PAGE_SIZE > VIRTUAL_MEMORY_BLOCK_SIZE) + /* If less than one dataflash page remaining, copy over the existing page to preserve trailing data */ + if ((TotalBlocks * (VIRTUAL_MEMORY_BLOCK_SIZE >> 4)) < (DATAFLASH_PAGE_SIZE >> 4)) + { + /* Copy selected dataflash's current page contents to the dataflash buffer */ + Dataflash_WaitWhileBusy(); + Dataflash_SendByte(UsingSecondBuffer ? DF_CMD_MAINMEMTOBUFF2 : DF_CMD_MAINMEMTOBUFF1); + Dataflash_SendAddressBytes(CurrDFPage, 0); + Dataflash_WaitWhileBusy(); + } +#endif + + /* Send the dataflash buffer write command */ + Dataflash_SendByte(UsingSecondBuffer ? DF_CMD_BUFF2WRITE : DF_CMD_BUFF1WRITE); + Dataflash_SendAddressBytes(0, 0); + } + + /* Write one 16-byte chunk of data to the dataflash */ + Dataflash_SendByte(Endpoint_Read_Byte()); + Dataflash_SendByte(Endpoint_Read_Byte()); + Dataflash_SendByte(Endpoint_Read_Byte()); + Dataflash_SendByte(Endpoint_Read_Byte()); + Dataflash_SendByte(Endpoint_Read_Byte()); + Dataflash_SendByte(Endpoint_Read_Byte()); + Dataflash_SendByte(Endpoint_Read_Byte()); + Dataflash_SendByte(Endpoint_Read_Byte()); + Dataflash_SendByte(Endpoint_Read_Byte()); + Dataflash_SendByte(Endpoint_Read_Byte()); + Dataflash_SendByte(Endpoint_Read_Byte()); + Dataflash_SendByte(Endpoint_Read_Byte()); + Dataflash_SendByte(Endpoint_Read_Byte()); + Dataflash_SendByte(Endpoint_Read_Byte()); + Dataflash_SendByte(Endpoint_Read_Byte()); + Dataflash_SendByte(Endpoint_Read_Byte()); + + /* Increment the dataflash page 16 byte block counter */ + CurrDFPageByteDiv16++; + + /* Increment the block 16 byte block counter */ + BytesInBlockDiv16++; + + /* Check if the current command is being aborted by the host */ + if (MSInterfaceInfo->State.IsMassStoreReset) + return; + } + + /* Decrement the blocks remaining counter and reset the sub block counter */ + TotalBlocks--; + } + + /* Write the dataflash buffer contents back to the dataflash page */ + Dataflash_WaitWhileBusy(); + Dataflash_SendByte(UsingSecondBuffer ? DF_CMD_BUFF2TOMAINMEMWITHERASE : DF_CMD_BUFF1TOMAINMEMWITHERASE); + Dataflash_SendAddressBytes(CurrDFPage, 0x00); + Dataflash_WaitWhileBusy(); + + /* If the endpoint is empty, clear it ready for the next packet from the host */ + if (!(Endpoint_IsReadWriteAllowed())) + Endpoint_ClearOUT(); + + /* Deselect all dataflash chips */ + Dataflash_DeselectChip(); +} + +/** Reads blocks (OS blocks, not Dataflash pages) from the storage medium, the board dataflash IC(s), into + * the pre-selected data IN endpoint. This routine reads in Dataflash page sized blocks from the Dataflash + * and writes them in OS sized blocks to the endpoint. + * + * \param[in] MSInterfaceInfo Pointer to a structure containing a Mass Storage Class configuration and state + * \param[in] BlockAddress Data block starting address for the read sequence + * \param[in] TotalBlocks Number of blocks of data to read + */ +void DataflashManager_ReadBlocks(USB_ClassInfo_MS_Device_t* const MSInterfaceInfo, const uint32_t BlockAddress, uint16_t TotalBlocks) +{ + uint16_t CurrDFPage = ((BlockAddress * VIRTUAL_MEMORY_BLOCK_SIZE) / DATAFLASH_PAGE_SIZE); + uint16_t CurrDFPageByte = ((BlockAddress * VIRTUAL_MEMORY_BLOCK_SIZE) % DATAFLASH_PAGE_SIZE); + uint8_t CurrDFPageByteDiv16 = (CurrDFPageByte >> 4); + + /* Select the correct starting Dataflash IC for the block requested */ + Dataflash_SelectChipFromPage(CurrDFPage); + + /* Send the dataflash main memory page read command */ + Dataflash_SendByte(DF_CMD_MAINMEMPAGEREAD); + Dataflash_SendAddressBytes(CurrDFPage, CurrDFPageByte); + Dataflash_SendByte(0x00); + Dataflash_SendByte(0x00); + Dataflash_SendByte(0x00); + Dataflash_SendByte(0x00); + + /* Wait until endpoint is ready before continuing */ + if (Endpoint_WaitUntilReady()) + return; + + while (TotalBlocks) + { + uint8_t BytesInBlockDiv16 = 0; + + /* Write an endpoint packet sized data block to the dataflash */ + while (BytesInBlockDiv16 < (VIRTUAL_MEMORY_BLOCK_SIZE >> 4)) + { + /* Check if the endpoint is currently full */ + if (!(Endpoint_IsReadWriteAllowed())) + { + /* Clear the endpoint bank to send its contents to the host */ + Endpoint_ClearIN(); + + /* Wait until the endpoint is ready for more data */ + if (Endpoint_WaitUntilReady()) + return; + } + + /* Check if end of dataflash page reached */ + if (CurrDFPageByteDiv16 == (DATAFLASH_PAGE_SIZE >> 4)) + { + /* Reset the dataflash buffer counter, increment the page counter */ + CurrDFPageByteDiv16 = 0; + CurrDFPage++; + + /* Select the next dataflash chip based on the new dataflash page index */ + Dataflash_SelectChipFromPage(CurrDFPage); + + /* Send the dataflash main memory page read command */ + Dataflash_SendByte(DF_CMD_MAINMEMPAGEREAD); + Dataflash_SendAddressBytes(CurrDFPage, 0); + Dataflash_SendByte(0x00); + Dataflash_SendByte(0x00); + Dataflash_SendByte(0x00); + Dataflash_SendByte(0x00); + } + + /* Read one 16-byte chunk of data from the dataflash */ + Endpoint_Write_Byte(Dataflash_ReceiveByte()); + Endpoint_Write_Byte(Dataflash_ReceiveByte()); + Endpoint_Write_Byte(Dataflash_ReceiveByte()); + Endpoint_Write_Byte(Dataflash_ReceiveByte()); + Endpoint_Write_Byte(Dataflash_ReceiveByte()); + Endpoint_Write_Byte(Dataflash_ReceiveByte()); + Endpoint_Write_Byte(Dataflash_ReceiveByte()); + Endpoint_Write_Byte(Dataflash_ReceiveByte()); + Endpoint_Write_Byte(Dataflash_ReceiveByte()); + Endpoint_Write_Byte(Dataflash_ReceiveByte()); + Endpoint_Write_Byte(Dataflash_ReceiveByte()); + Endpoint_Write_Byte(Dataflash_ReceiveByte()); + Endpoint_Write_Byte(Dataflash_ReceiveByte()); + Endpoint_Write_Byte(Dataflash_ReceiveByte()); + Endpoint_Write_Byte(Dataflash_ReceiveByte()); + Endpoint_Write_Byte(Dataflash_ReceiveByte()); + + /* Increment the dataflash page 16 byte block counter */ + CurrDFPageByteDiv16++; + + /* Increment the block 16 byte block counter */ + BytesInBlockDiv16++; + + /* Check if the current command is being aborted by the host */ + if (MSInterfaceInfo->State.IsMassStoreReset) + return; + } + + /* Decrement the blocks remaining counter */ + TotalBlocks--; + } + + /* If the endpoint is full, send its contents to the host */ + if (!(Endpoint_IsReadWriteAllowed())) + Endpoint_ClearIN(); + + /* Deselect all dataflash chips */ + Dataflash_DeselectChip(); +} + +/** Writes blocks (OS blocks, not Dataflash pages) to the storage medium, the board dataflash IC(s), from + * the a given RAM buffer. This routine reads in OS sized blocks from the buffer and writes them to the + * dataflash in Dataflash page sized blocks. This can be linked to FAT libraries to write files to the + * dataflash. + * + * \param[in] BlockAddress Data block starting address for the write sequence + * \param[in] TotalBlocks Number of blocks of data to write + * \param[in] BufferPtr Pointer to the data source RAM buffer + */ +void DataflashManager_WriteBlocks_RAM(const uint32_t BlockAddress, uint16_t TotalBlocks, const uint8_t* BufferPtr) +{ + uint16_t CurrDFPage = ((BlockAddress * VIRTUAL_MEMORY_BLOCK_SIZE) / DATAFLASH_PAGE_SIZE); + uint16_t CurrDFPageByte = ((BlockAddress * VIRTUAL_MEMORY_BLOCK_SIZE) % DATAFLASH_PAGE_SIZE); + uint8_t CurrDFPageByteDiv16 = (CurrDFPageByte >> 4); + bool UsingSecondBuffer = false; + + /* Select the correct starting Dataflash IC for the block requested */ + Dataflash_SelectChipFromPage(CurrDFPage); + +#if (DATAFLASH_PAGE_SIZE > VIRTUAL_MEMORY_BLOCK_SIZE) + /* Copy selected dataflash's current page contents to the dataflash buffer */ + Dataflash_SendByte(DF_CMD_MAINMEMTOBUFF1); + Dataflash_SendAddressBytes(CurrDFPage, 0); + Dataflash_WaitWhileBusy(); +#endif + + /* Send the dataflash buffer write command */ + Dataflash_SendByte(DF_CMD_BUFF1WRITE); + Dataflash_SendAddressBytes(0, CurrDFPageByte); + + while (TotalBlocks) + { + uint8_t BytesInBlockDiv16 = 0; + + /* Write an endpoint packet sized data block to the dataflash */ + while (BytesInBlockDiv16 < (VIRTUAL_MEMORY_BLOCK_SIZE >> 4)) + { + /* Check if end of dataflash page reached */ + if (CurrDFPageByteDiv16 == (DATAFLASH_PAGE_SIZE >> 4)) + { + /* Write the dataflash buffer contents back to the dataflash page */ + Dataflash_WaitWhileBusy(); + Dataflash_SendByte(UsingSecondBuffer ? DF_CMD_BUFF2TOMAINMEMWITHERASE : DF_CMD_BUFF1TOMAINMEMWITHERASE); + Dataflash_SendAddressBytes(CurrDFPage, 0); + + /* Reset the dataflash buffer counter, increment the page counter */ + CurrDFPageByteDiv16 = 0; + CurrDFPage++; + + /* Once all the dataflash ICs have had their first buffers filled, switch buffers to maintain throughput */ + if (Dataflash_GetSelectedChip() == DATAFLASH_CHIP_MASK(DATAFLASH_TOTALCHIPS)) + UsingSecondBuffer = !(UsingSecondBuffer); + + /* Select the next dataflash chip based on the new dataflash page index */ + Dataflash_SelectChipFromPage(CurrDFPage); + +#if (DATAFLASH_PAGE_SIZE > VIRTUAL_MEMORY_BLOCK_SIZE) + /* If less than one dataflash page remaining, copy over the existing page to preserve trailing data */ + if ((TotalBlocks * (VIRTUAL_MEMORY_BLOCK_SIZE >> 4)) < (DATAFLASH_PAGE_SIZE >> 4)) + { + /* Copy selected dataflash's current page contents to the dataflash buffer */ + Dataflash_WaitWhileBusy(); + Dataflash_SendByte(UsingSecondBuffer ? DF_CMD_MAINMEMTOBUFF2 : DF_CMD_MAINMEMTOBUFF1); + Dataflash_SendAddressBytes(CurrDFPage, 0); + Dataflash_WaitWhileBusy(); + } +#endif + + /* Send the dataflash buffer write command */ + Dataflash_ToggleSelectedChipCS(); + Dataflash_SendByte(DF_CMD_BUFF1WRITE); + Dataflash_SendAddressBytes(0, 0); + } + + /* Write one 16-byte chunk of data to the dataflash */ + for (uint8_t ByteNum = 0; ByteNum < 16; ByteNum++) + Dataflash_SendByte(*(BufferPtr++)); + + /* Increment the dataflash page 16 byte block counter */ + CurrDFPageByteDiv16++; + + /* Increment the block 16 byte block counter */ + BytesInBlockDiv16++; + } + + /* Decrement the blocks remaining counter and reset the sub block counter */ + TotalBlocks--; + } + + /* Write the dataflash buffer contents back to the dataflash page */ + Dataflash_WaitWhileBusy(); + Dataflash_SendByte(UsingSecondBuffer ? DF_CMD_BUFF2TOMAINMEMWITHERASE : DF_CMD_BUFF1TOMAINMEMWITHERASE); + Dataflash_SendAddressBytes(CurrDFPage, 0x00); + Dataflash_WaitWhileBusy(); + + /* Deselect all dataflash chips */ + Dataflash_DeselectChip(); +} + +/** Reads blocks (OS blocks, not Dataflash pages) from the storage medium, the board dataflash IC(s), into + * the a preallocated RAM buffer. This routine reads in Dataflash page sized blocks from the Dataflash + * and writes them in OS sized blocks to the given buffer. This can be linked to FAT libraries to read + * the files stored on the dataflash. + * + * \param[in] BlockAddress Data block starting address for the read sequence + * \param[in] TotalBlocks Number of blocks of data to read + * \param[out] BufferPtr Pointer to the data destination RAM buffer + */ +void DataflashManager_ReadBlocks_RAM(const uint32_t BlockAddress, uint16_t TotalBlocks, uint8_t* BufferPtr) +{ + uint16_t CurrDFPage = ((BlockAddress * VIRTUAL_MEMORY_BLOCK_SIZE) / DATAFLASH_PAGE_SIZE); + uint16_t CurrDFPageByte = ((BlockAddress * VIRTUAL_MEMORY_BLOCK_SIZE) % DATAFLASH_PAGE_SIZE); + uint8_t CurrDFPageByteDiv16 = (CurrDFPageByte >> 4); + + /* Select the correct starting Dataflash IC for the block requested */ + Dataflash_SelectChipFromPage(CurrDFPage); + + /* Send the dataflash main memory page read command */ + Dataflash_SendByte(DF_CMD_MAINMEMPAGEREAD); + Dataflash_SendAddressBytes(CurrDFPage, CurrDFPageByte); + Dataflash_SendByte(0x00); + Dataflash_SendByte(0x00); + Dataflash_SendByte(0x00); + Dataflash_SendByte(0x00); + + while (TotalBlocks) + { + uint8_t BytesInBlockDiv16 = 0; + + /* Write an endpoint packet sized data block to the dataflash */ + while (BytesInBlockDiv16 < (VIRTUAL_MEMORY_BLOCK_SIZE >> 4)) + { + /* Check if end of dataflash page reached */ + if (CurrDFPageByteDiv16 == (DATAFLASH_PAGE_SIZE >> 4)) + { + /* Reset the dataflash buffer counter, increment the page counter */ + CurrDFPageByteDiv16 = 0; + CurrDFPage++; + + /* Select the next dataflash chip based on the new dataflash page index */ + Dataflash_SelectChipFromPage(CurrDFPage); + + /* Send the dataflash main memory page read command */ + Dataflash_SendByte(DF_CMD_MAINMEMPAGEREAD); + Dataflash_SendAddressBytes(CurrDFPage, 0); + Dataflash_SendByte(0x00); + Dataflash_SendByte(0x00); + Dataflash_SendByte(0x00); + Dataflash_SendByte(0x00); + } + + /* Read one 16-byte chunk of data from the dataflash */ + for (uint8_t ByteNum = 0; ByteNum < 16; ByteNum++) + *(BufferPtr++) = Dataflash_ReceiveByte(); + + /* Increment the dataflash page 16 byte block counter */ + CurrDFPageByteDiv16++; + + /* Increment the block 16 byte block counter */ + BytesInBlockDiv16++; + } + + /* Decrement the blocks remaining counter */ + TotalBlocks--; + } + + /* Deselect all dataflash chips */ + Dataflash_DeselectChip(); +} + +/** Disables the dataflash memory write protection bits on the board Dataflash ICs, if enabled. */ +void DataflashManager_ResetDataflashProtections(void) +{ + /* Select first dataflash chip, send the read status register command */ + Dataflash_SelectChip(DATAFLASH_CHIP1); + Dataflash_SendByte(DF_CMD_GETSTATUS); + + /* Check if sector protection is enabled */ + if (Dataflash_ReceiveByte() & DF_STATUS_SECTORPROTECTION_ON) + { + Dataflash_ToggleSelectedChipCS(); + + /* Send the commands to disable sector protection */ + Dataflash_SendByte(DF_CMD_SECTORPROTECTIONOFF[0]); + Dataflash_SendByte(DF_CMD_SECTORPROTECTIONOFF[1]); + Dataflash_SendByte(DF_CMD_SECTORPROTECTIONOFF[2]); + Dataflash_SendByte(DF_CMD_SECTORPROTECTIONOFF[3]); + } + + /* Select second dataflash chip (if present on selected board), send read status register command */ + #if (DATAFLASH_TOTALCHIPS == 2) + Dataflash_SelectChip(DATAFLASH_CHIP2); + Dataflash_SendByte(DF_CMD_GETSTATUS); + + /* Check if sector protection is enabled */ + if (Dataflash_ReceiveByte() & DF_STATUS_SECTORPROTECTION_ON) + { + Dataflash_ToggleSelectedChipCS(); + + /* Send the commands to disable sector protection */ + Dataflash_SendByte(DF_CMD_SECTORPROTECTIONOFF[0]); + Dataflash_SendByte(DF_CMD_SECTORPROTECTIONOFF[1]); + Dataflash_SendByte(DF_CMD_SECTORPROTECTIONOFF[2]); + Dataflash_SendByte(DF_CMD_SECTORPROTECTIONOFF[3]); + } + #endif + + /* Deselect current dataflash chip */ + Dataflash_DeselectChip(); +} + +/** Performs a simple test on the attached Dataflash IC(s) to ensure that they are working. + * + * \return Boolean true if all media chips are working, false otherwise + */ +bool DataflashManager_CheckDataflashOperation(void) +{ + uint8_t ReturnByte; + + /* Test first Dataflash IC is present and responding to commands */ + Dataflash_SelectChip(DATAFLASH_CHIP1); + Dataflash_SendByte(DF_CMD_READMANUFACTURERDEVICEINFO); + ReturnByte = Dataflash_ReceiveByte(); + Dataflash_DeselectChip(); + + /* If returned data is invalid, fail the command */ + if (ReturnByte != DF_MANUFACTURER_ATMEL) + return false; + + #if (DATAFLASH_TOTALCHIPS == 2) + /* Test second Dataflash IC is present and responding to commands */ + Dataflash_SelectChip(DATAFLASH_CHIP2); + Dataflash_SendByte(DF_CMD_READMANUFACTURERDEVICEINFO); + ReturnByte = Dataflash_ReceiveByte(); + Dataflash_DeselectChip(); + + /* If returned data is invalid, fail the command */ + if (ReturnByte != DF_MANUFACTURER_ATMEL) + return false; + #endif + + return true; +} diff --git a/Projects/TemperatureDataLogger/Lib/DataflashManager.h b/Projects/TemperatureDataLogger/Lib/DataflashManager.h index 2b855dc8a..3c75c4c75 100644 --- a/Projects/TemperatureDataLogger/Lib/DataflashManager.h +++ b/Projects/TemperatureDataLogger/Lib/DataflashManager.h @@ -1,81 +1,81 @@ -/* - LUFA Library - Copyright (C) Dean Camera, 2010. - - dean [at] fourwalledcubicle [dot] com - www.fourwalledcubicle.com -*/ - -/* - Copyright 2010 Dean Camera (dean [at] fourwalledcubicle [dot] com) - - Permission to use, copy, modify, distribute, and sell this - software and its documentation for any purpose is hereby granted - without fee, provided that the above copyright notice appear in - all copies and that both that the copyright notice and this - permission notice and warranty disclaimer appear in supporting - documentation, and that the name of the author not be used in - advertising or publicity pertaining to distribution of the - software without specific, written prior permission. - - The author disclaim all warranties with regard to this - software, including all implied warranties of merchantability - and fitness. In no event shall the author be liable for any - special, indirect or consequential damages or any damages - whatsoever resulting from loss of use, data or profits, whether - in an action of contract, negligence or other tortious action, - arising out of or in connection with the use or performance of - this software. -*/ - -/** \file - * - * Header file for DataflashManager.c. - */ - -#ifndef _DATAFLASH_MANAGER_H_ -#define _DATAFLASH_MANAGER_H_ - - /* Includes: */ - #include - - #include "TempDataLogger.h" - #include "Descriptors.h" - - #include - #include - #include - #include - - /* Preprocessor Checks: */ - #if (DATAFLASH_PAGE_SIZE % 16) - #error Dataflash page size must be a multiple of 16 bytes. - #endif - - /* Defines: */ - /** Total number of bytes of the storage medium, comprised of one or more dataflash ICs. */ - #define VIRTUAL_MEMORY_BYTES ((uint32_t)DATAFLASH_PAGES * DATAFLASH_PAGE_SIZE * DATAFLASH_TOTALCHIPS) - - /** Block size of the device. This is kept at 512 to remain compatible with the OS despite the underlying - * storage media (Dataflash) using a different native block size. Do not change this value. - */ - #define VIRTUAL_MEMORY_BLOCK_SIZE 512 - - /** Total number of blocks of the virtual memory for reporting to the host as the device's total capacity. Do not - * change this value; change VIRTUAL_MEMORY_BYTES instead to alter the media size. - */ - #define VIRTUAL_MEMORY_BLOCKS (VIRTUAL_MEMORY_BYTES / VIRTUAL_MEMORY_BLOCK_SIZE) - - /* Function Prototypes: */ - void DataflashManager_WriteBlocks(USB_ClassInfo_MS_Device_t* const MSInterfaceInfo, const uint32_t BlockAddress, - uint16_t TotalBlocks); - void DataflashManager_ReadBlocks(USB_ClassInfo_MS_Device_t* const MSInterfaceInfo, const uint32_t BlockAddress, - uint16_t TotalBlocks); - void DataflashManager_WriteBlocks_RAM(const uint32_t BlockAddress, uint16_t TotalBlocks, - const uint8_t* BufferPtr) ATTR_NON_NULL_PTR_ARG(3); - void DataflashManager_ReadBlocks_RAM(const uint32_t BlockAddress, uint16_t TotalBlocks, - uint8_t* BufferPtr) ATTR_NON_NULL_PTR_ARG(3); - void DataflashManager_ResetDataflashProtections(void); - bool DataflashManager_CheckDataflashOperation(void); - -#endif +/* + LUFA Library + Copyright (C) Dean Camera, 2010. + + dean [at] fourwalledcubicle [dot] com + www.fourwalledcubicle.com +*/ + +/* + Copyright 2010 Dean Camera (dean [at] fourwalledcubicle [dot] com) + + Permission to use, copy, modify, distribute, and sell this + software and its documentation for any purpose is hereby granted + without fee, provided that the above copyright notice appear in + all copies and that both that the copyright notice and this + permission notice and warranty disclaimer appear in supporting + documentation, and that the name of the author not be used in + advertising or publicity pertaining to distribution of the + software without specific, written prior permission. + + The author disclaim all warranties with regard to this + software, including all implied warranties of merchantability + and fitness. In no event shall the author be liable for any + special, indirect or consequential damages or any damages + whatsoever resulting from loss of use, data or profits, whether + in an action of contract, negligence or other tortious action, + arising out of or in connection with the use or performance of + this software. +*/ + +/** \file + * + * Header file for DataflashManager.c. + */ + +#ifndef _DATAFLASH_MANAGER_H_ +#define _DATAFLASH_MANAGER_H_ + + /* Includes: */ + #include + + #include "TempDataLogger.h" + #include "Descriptors.h" + + #include + #include + #include + #include + + /* Preprocessor Checks: */ + #if (DATAFLASH_PAGE_SIZE % 16) + #error Dataflash page size must be a multiple of 16 bytes. + #endif + + /* Defines: */ + /** Total number of bytes of the storage medium, comprised of one or more dataflash ICs. */ + #define VIRTUAL_MEMORY_BYTES ((uint32_t)DATAFLASH_PAGES * DATAFLASH_PAGE_SIZE * DATAFLASH_TOTALCHIPS) + + /** Block size of the device. This is kept at 512 to remain compatible with the OS despite the underlying + * storage media (Dataflash) using a different native block size. Do not change this value. + */ + #define VIRTUAL_MEMORY_BLOCK_SIZE 512 + + /** Total number of blocks of the virtual memory for reporting to the host as the device's total capacity. Do not + * change this value; change VIRTUAL_MEMORY_BYTES instead to alter the media size. + */ + #define VIRTUAL_MEMORY_BLOCKS (VIRTUAL_MEMORY_BYTES / VIRTUAL_MEMORY_BLOCK_SIZE) + + /* Function Prototypes: */ + void DataflashManager_WriteBlocks(USB_ClassInfo_MS_Device_t* const MSInterfaceInfo, const uint32_t BlockAddress, + uint16_t TotalBlocks); + void DataflashManager_ReadBlocks(USB_ClassInfo_MS_Device_t* const MSInterfaceInfo, const uint32_t BlockAddress, + uint16_t TotalBlocks); + void DataflashManager_WriteBlocks_RAM(const uint32_t BlockAddress, uint16_t TotalBlocks, + const uint8_t* BufferPtr) ATTR_NON_NULL_PTR_ARG(3); + void DataflashManager_ReadBlocks_RAM(const uint32_t BlockAddress, uint16_t TotalBlocks, + uint8_t* BufferPtr) ATTR_NON_NULL_PTR_ARG(3); + void DataflashManager_ResetDataflashProtections(void); + bool DataflashManager_CheckDataflashOperation(void); + +#endif diff --git a/Projects/TemperatureDataLogger/Lib/FATFs/00readme.txt b/Projects/TemperatureDataLogger/Lib/FATFs/00readme.txt index 295be3b9a..eb378c51e 100644 --- a/Projects/TemperatureDataLogger/Lib/FATFs/00readme.txt +++ b/Projects/TemperatureDataLogger/Lib/FATFs/00readme.txt @@ -1,110 +1,110 @@ -FatFs Module Source Files R0.07e (C)ChaN, 2010 - - -FILES - - ffconf.h Configuration file for FatFs module. - ff.h Common include file for FatFs and application module. - ff.c FatFs module. - diskio.h Common include file for FatFs and disk I/O module. - diskio.c Skeleton of low level disk I/O module. - integer.h Alternative type definitions for integer variables. - option Optional external functions. - - Low level disk I/O module is not included in this archive because the FatFs - module is only a generic file system layer and not depend on any specific - storage device. You have to provide a low level disk I/O module that written - to control your storage device. - - - -AGREEMENTS - - FatFs module is an open source software to implement FAT file system to - small embedded systems. This is a free software and is opened for education, - research and commercial developments under license policy of following trems. - - Copyright (C) 2010, ChaN, all right reserved. - - * The FatFs module is a free software and there is NO WARRANTY. - * No restriction on use. You can use, modify and redistribute it for - personal, non-profit or commercial product UNDER YOUR RESPONSIBILITY. - * Redistributions of source code must retain the above copyright notice. - - - -REVISION HISTORY - - Feb 26, 2006 R0.00 Prototype - - Apr 29, 2006 R0.01 First release. - - Jun 01, 2006 R0.02 Added FAT12. - Removed unbuffered mode. - Fixed a problem on small (<32M) patition. - - Jun 10, 2006 R0.02a Added a configuration option _FS_MINIMUM. - - Sep 22, 2006 R0.03 Added f_rename. - Changed option _FS_MINIMUM to _FS_MINIMIZE. - - Dec 11, 2006 R0.03a Improved cluster scan algolithm to write files fast. - Fixed f_mkdir creates incorrect directory on FAT32. - - Feb 04, 2007 R0.04 Supported multiple drive system. (FatFs) - Changed some APIs for multiple drive system. - Added f_mkfs. (FatFs) - Added _USE_FAT32 option. (Tiny-FatFs) - - Apr 01, 2007 R0.04a Supported multiple partitions on a plysical drive. (FatFs) - Fixed an endian sensitive code in f_mkfs. (FatFs) - Added a capability of extending the file size to f_lseek. - Added minimization level 3. - Fixed a problem that can collapse a sector when recreate an - existing file in any sub-directory at non FAT32 cfg. (Tiny-FatFs) - - May 05, 2007 R0.04b Added _USE_NTFLAG option. - Added FSInfo support. - Fixed some problems corresponds to FAT32. (Tiny-FatFs) - Fixed DBCS name can result FR_INVALID_NAME. - Fixed short seek (0 < ofs <= csize) collapses the file object. - - Aug 25, 2007 R0.05 Changed arguments of f_read, f_write. - Changed arguments of f_mkfs. (FatFs) - Fixed f_mkfs on FAT32 creates incorrect FSInfo. (FatFs) - Fixed f_mkdir on FAT32 creates incorrect directory. (FatFs) - - Feb 03, 2008 R0.05a Added f_truncate(). - Added f_utime(). - Fixed off by one error at FAT sub-type determination. - Fixed btr in f_read() can be mistruncated. - Fixed cached sector is not flushed when create and close without write. - - Apr 01, 2008 R0.06 Added f_forward(). (Tiny-FatFs) - Added string functions: fputc(), fputs(), fprintf() and fgets(). - Improved performance of f_lseek() on move to the same or following cluster. - - Apr 01, 2010, R0.07 Merged Tiny-FatFs as a buffer configuration option. - Added long file name support. - Added multiple code page support. - Added re-entrancy for multitask operation. - Added auto cluster size selection to f_mkfs(). - Added rewind option to f_readdir(). - Changed result code of critical errors. - Renamed string functions to avoid name collision. - - Apr 14, 2010, R0.07a Separated out OS dependent code on reentrant cfg. - Added multiple sector size support. - - Jun 21, 2010, R0.07c Fixed f_unlink() may return FR_OK on error. - Fixed wrong cache control in f_lseek(). - Added relative path feature. - Added f_chdir(). - Added f_chdrive(). - Added proper case conversion for extended characters. - - Nov 03,'2010 R0.07e Separated out configuration options from ff.h to ffconf.h. - Added a configuration option, _LFN_UNICODE. - Fixed f_unlink() fails to remove a sub-dir on _FS_RPATH. - Fixed name matching error on the 13 char boundary. - Changed f_readdir() to return the SFN with always upper case on non-LFN cfg. +FatFs Module Source Files R0.07e (C)ChaN, 2010 + + +FILES + + ffconf.h Configuration file for FatFs module. + ff.h Common include file for FatFs and application module. + ff.c FatFs module. + diskio.h Common include file for FatFs and disk I/O module. + diskio.c Skeleton of low level disk I/O module. + integer.h Alternative type definitions for integer variables. + option Optional external functions. + + Low level disk I/O module is not included in this archive because the FatFs + module is only a generic file system layer and not depend on any specific + storage device. You have to provide a low level disk I/O module that written + to control your storage device. + + + +AGREEMENTS + + FatFs module is an open source software to implement FAT file system to + small embedded systems. This is a free software and is opened for education, + research and commercial developments under license policy of following trems. + + Copyright (C) 2010, ChaN, all right reserved. + + * The FatFs module is a free software and there is NO WARRANTY. + * No restriction on use. You can use, modify and redistribute it for + personal, non-profit or commercial product UNDER YOUR RESPONSIBILITY. + * Redistributions of source code must retain the above copyright notice. + + + +REVISION HISTORY + + Feb 26, 2006 R0.00 Prototype + + Apr 29, 2006 R0.01 First release. + + Jun 01, 2006 R0.02 Added FAT12. + Removed unbuffered mode. + Fixed a problem on small (<32M) patition. + + Jun 10, 2006 R0.02a Added a configuration option _FS_MINIMUM. + + Sep 22, 2006 R0.03 Added f_rename. + Changed option _FS_MINIMUM to _FS_MINIMIZE. + + Dec 11, 2006 R0.03a Improved cluster scan algolithm to write files fast. + Fixed f_mkdir creates incorrect directory on FAT32. + + Feb 04, 2007 R0.04 Supported multiple drive system. (FatFs) + Changed some APIs for multiple drive system. + Added f_mkfs. (FatFs) + Added _USE_FAT32 option. (Tiny-FatFs) + + Apr 01, 2007 R0.04a Supported multiple partitions on a plysical drive. (FatFs) + Fixed an endian sensitive code in f_mkfs. (FatFs) + Added a capability of extending the file size to f_lseek. + Added minimization level 3. + Fixed a problem that can collapse a sector when recreate an + existing file in any sub-directory at non FAT32 cfg. (Tiny-FatFs) + + May 05, 2007 R0.04b Added _USE_NTFLAG option. + Added FSInfo support. + Fixed some problems corresponds to FAT32. (Tiny-FatFs) + Fixed DBCS name can result FR_INVALID_NAME. + Fixed short seek (0 < ofs <= csize) collapses the file object. + + Aug 25, 2007 R0.05 Changed arguments of f_read, f_write. + Changed arguments of f_mkfs. (FatFs) + Fixed f_mkfs on FAT32 creates incorrect FSInfo. (FatFs) + Fixed f_mkdir on FAT32 creates incorrect directory. (FatFs) + + Feb 03, 2008 R0.05a Added f_truncate(). + Added f_utime(). + Fixed off by one error at FAT sub-type determination. + Fixed btr in f_read() can be mistruncated. + Fixed cached sector is not flushed when create and close without write. + + Apr 01, 2008 R0.06 Added f_forward(). (Tiny-FatFs) + Added string functions: fputc(), fputs(), fprintf() and fgets(). + Improved performance of f_lseek() on move to the same or following cluster. + + Apr 01, 2010, R0.07 Merged Tiny-FatFs as a buffer configuration option. + Added long file name support. + Added multiple code page support. + Added re-entrancy for multitask operation. + Added auto cluster size selection to f_mkfs(). + Added rewind option to f_readdir(). + Changed result code of critical errors. + Renamed string functions to avoid name collision. + + Apr 14, 2010, R0.07a Separated out OS dependent code on reentrant cfg. + Added multiple sector size support. + + Jun 21, 2010, R0.07c Fixed f_unlink() may return FR_OK on error. + Fixed wrong cache control in f_lseek(). + Added relative path feature. + Added f_chdir(). + Added f_chdrive(). + Added proper case conversion for extended characters. + + Nov 03,'2010 R0.07e Separated out configuration options from ff.h to ffconf.h. + Added a configuration option, _LFN_UNICODE. + Fixed f_unlink() fails to remove a sub-dir on _FS_RPATH. + Fixed name matching error on the 13 char boundary. + Changed f_readdir() to return the SFN with always upper case on non-LFN cfg. diff --git a/Projects/TemperatureDataLogger/Lib/FATFs/diskio.c b/Projects/TemperatureDataLogger/Lib/FATFs/diskio.c index 0c0083bac..d4f3897bb 100644 --- a/Projects/TemperatureDataLogger/Lib/FATFs/diskio.c +++ b/Projects/TemperatureDataLogger/Lib/FATFs/diskio.c @@ -1,99 +1,99 @@ -/*-----------------------------------------------------------------------*/ -/* Low level disk I/O module skeleton for FatFs (C)ChaN, 2007 */ -/*-----------------------------------------------------------------------*/ -/* This is a stub disk I/O module that acts as front end of the existing */ -/* disk I/O modules and attach it to FatFs module with common interface. */ -/*-----------------------------------------------------------------------*/ - -#include "diskio.h" - -/*-----------------------------------------------------------------------*/ -/* Inidialize a Drive */ - -DSTATUS disk_initialize ( - BYTE drv /* Physical drive nmuber (0..) */ -) -{ - return FR_OK; -} - - - -/*-----------------------------------------------------------------------*/ -/* Return Disk Status */ - -DSTATUS disk_status ( - BYTE drv /* Physical drive nmuber (0..) */ -) -{ - return FR_OK; -} - - - -/*-----------------------------------------------------------------------*/ -/* Read Sector(s) */ - -DRESULT disk_read ( - BYTE drv, /* Physical drive nmuber (0..) */ - BYTE *buff, /* Data buffer to store read data */ - DWORD sector, /* Sector address (LBA) */ - BYTE count /* Number of sectors to read (1..255) */ -) -{ - DataflashManager_ReadBlocks_RAM(sector, count, buff); - return RES_OK; -} - - - -/*-----------------------------------------------------------------------*/ -/* Write Sector(s) */ - -#if _READONLY == 0 -DRESULT disk_write ( - BYTE drv, /* Physical drive nmuber (0..) */ - const BYTE *buff, /* Data to be written */ - DWORD sector, /* Sector address (LBA) */ - BYTE count /* Number of sectors to write (1..255) */ -) -{ - DataflashManager_WriteBlocks_RAM(sector, count, buff); - return RES_OK; -} -#endif /* _READONLY */ - - - -/*-----------------------------------------------------------------------*/ -/* Miscellaneous Functions */ - -DRESULT disk_ioctl ( - BYTE drv, /* Physical drive nmuber (0..) */ - BYTE ctrl, /* Control code */ - void *buff /* Buffer to send/receive control data */ -) -{ - if (ctrl == CTRL_SYNC) - return RES_OK; - else - return RES_PARERR; -} - - -DWORD get_fattime (void) -{ - uint8_t Day, Month, Year; - uint8_t Hour, Minute, Second; - - DS1307_GetDate(&Day, &Month, &Year); - DS1307_GetTime(&Hour, &Minute, &Second); - - - return ((DWORD)(20 + Year) << 25) | - ((DWORD)Month << 21) | - ((DWORD)Day << 16) | - ((DWORD)Hour << 11) | - ((DWORD)Minute << 5) | - (((DWORD)Second >> 1) << 0); -} +/*-----------------------------------------------------------------------*/ +/* Low level disk I/O module skeleton for FatFs (C)ChaN, 2007 */ +/*-----------------------------------------------------------------------*/ +/* This is a stub disk I/O module that acts as front end of the existing */ +/* disk I/O modules and attach it to FatFs module with common interface. */ +/*-----------------------------------------------------------------------*/ + +#include "diskio.h" + +/*-----------------------------------------------------------------------*/ +/* Inidialize a Drive */ + +DSTATUS disk_initialize ( + BYTE drv /* Physical drive nmuber (0..) */ +) +{ + return FR_OK; +} + + + +/*-----------------------------------------------------------------------*/ +/* Return Disk Status */ + +DSTATUS disk_status ( + BYTE drv /* Physical drive nmuber (0..) */ +) +{ + return FR_OK; +} + + + +/*-----------------------------------------------------------------------*/ +/* Read Sector(s) */ + +DRESULT disk_read ( + BYTE drv, /* Physical drive nmuber (0..) */ + BYTE *buff, /* Data buffer to store read data */ + DWORD sector, /* Sector address (LBA) */ + BYTE count /* Number of sectors to read (1..255) */ +) +{ + DataflashManager_ReadBlocks_RAM(sector, count, buff); + return RES_OK; +} + + + +/*-----------------------------------------------------------------------*/ +/* Write Sector(s) */ + +#if _READONLY == 0 +DRESULT disk_write ( + BYTE drv, /* Physical drive nmuber (0..) */ + const BYTE *buff, /* Data to be written */ + DWORD sector, /* Sector address (LBA) */ + BYTE count /* Number of sectors to write (1..255) */ +) +{ + DataflashManager_WriteBlocks_RAM(sector, count, buff); + return RES_OK; +} +#endif /* _READONLY */ + + + +/*-----------------------------------------------------------------------*/ +/* Miscellaneous Functions */ + +DRESULT disk_ioctl ( + BYTE drv, /* Physical drive nmuber (0..) */ + BYTE ctrl, /* Control code */ + void *buff /* Buffer to send/receive control data */ +) +{ + if (ctrl == CTRL_SYNC) + return RES_OK; + else + return RES_PARERR; +} + + +DWORD get_fattime (void) +{ + uint8_t Day, Month, Year; + uint8_t Hour, Minute, Second; + + DS1307_GetDate(&Day, &Month, &Year); + DS1307_GetTime(&Hour, &Minute, &Second); + + + return ((DWORD)(20 + Year) << 25) | + ((DWORD)Month << 21) | + ((DWORD)Day << 16) | + ((DWORD)Hour << 11) | + ((DWORD)Minute << 5) | + (((DWORD)Second >> 1) << 0); +} diff --git a/Projects/TemperatureDataLogger/Lib/FATFs/diskio.h b/Projects/TemperatureDataLogger/Lib/FATFs/diskio.h index 4085501da..ad126712d 100644 --- a/Projects/TemperatureDataLogger/Lib/FATFs/diskio.h +++ b/Projects/TemperatureDataLogger/Lib/FATFs/diskio.h @@ -1,71 +1,71 @@ -/*----------------------------------------------------------------------- -/ Low level disk interface modlue include file R0.07 (C)ChaN, 2010 -/-----------------------------------------------------------------------*/ - -#ifndef _DISKIO - -#define _READONLY 0 /* 1: Read-only mode */ -#define _USE_IOCTL 1 - -#include "integer.h" - -#include "../DataflashManager.h" - - -/* Status of Disk Functions */ -typedef BYTE DSTATUS; - -/* Results of Disk Functions */ -typedef enum { - RES_OK = 0, /* 0: Successful */ - RES_ERROR, /* 1: R/W Error */ - RES_WRPRT, /* 2: Write Protected */ - RES_NOTRDY, /* 3: Not Ready */ - RES_PARERR /* 4: Invalid Parameter */ -} DRESULT; - - -/*---------------------------------------*/ -/* Prototypes for disk control functions */ - -BOOL assign_drives (int argc, char *argv[]); -DSTATUS disk_initialize (BYTE); -DSTATUS disk_status (BYTE); -DRESULT disk_read (BYTE, BYTE*, DWORD, BYTE); -#if _READONLY == 0 -DRESULT disk_write (BYTE, const BYTE*, DWORD, BYTE); -#endif -DRESULT disk_ioctl (BYTE, BYTE, void*); - - -/* Disk Status Bits (DSTATUS) */ - -#define STA_NOINIT 0x01 /* Drive not initialized */ -#define STA_NODISK 0x02 /* No medium in the drive */ -#define STA_PROTECT 0x04 /* Write protected */ - - -/* Command code for disk_ioctrl() */ - -/* Generic command */ -#define CTRL_SYNC 0 /* Mandatory for write functions */ -#define GET_SECTOR_COUNT 1 /* Mandatory for only f_mkfs() */ -#define GET_SECTOR_SIZE 2 /* Mandatory for multiple sector size cfg */ -#define GET_BLOCK_SIZE 3 /* Mandatory for only f_mkfs() */ -#define CTRL_POWER 4 -#define CTRL_LOCK 5 -#define CTRL_EJECT 6 -/* MMC/SDC command */ -#define MMC_GET_TYPE 10 -#define MMC_GET_CSD 11 -#define MMC_GET_CID 12 -#define MMC_GET_OCR 13 -#define MMC_GET_SDSTAT 14 -/* ATA/CF command */ -#define ATA_GET_REV 20 -#define ATA_GET_MODEL 21 -#define ATA_GET_SN 22 - - -#define _DISKIO -#endif +/*----------------------------------------------------------------------- +/ Low level disk interface modlue include file R0.07 (C)ChaN, 2010 +/-----------------------------------------------------------------------*/ + +#ifndef _DISKIO + +#define _READONLY 0 /* 1: Read-only mode */ +#define _USE_IOCTL 1 + +#include "integer.h" + +#include "../DataflashManager.h" + + +/* Status of Disk Functions */ +typedef BYTE DSTATUS; + +/* Results of Disk Functions */ +typedef enum { + RES_OK = 0, /* 0: Successful */ + RES_ERROR, /* 1: R/W Error */ + RES_WRPRT, /* 2: Write Protected */ + RES_NOTRDY, /* 3: Not Ready */ + RES_PARERR /* 4: Invalid Parameter */ +} DRESULT; + + +/*---------------------------------------*/ +/* Prototypes for disk control functions */ + +BOOL assign_drives (int argc, char *argv[]); +DSTATUS disk_initialize (BYTE); +DSTATUS disk_status (BYTE); +DRESULT disk_read (BYTE, BYTE*, DWORD, BYTE); +#if _READONLY == 0 +DRESULT disk_write (BYTE, const BYTE*, DWORD, BYTE); +#endif +DRESULT disk_ioctl (BYTE, BYTE, void*); + + +/* Disk Status Bits (DSTATUS) */ + +#define STA_NOINIT 0x01 /* Drive not initialized */ +#define STA_NODISK 0x02 /* No medium in the drive */ +#define STA_PROTECT 0x04 /* Write protected */ + + +/* Command code for disk_ioctrl() */ + +/* Generic command */ +#define CTRL_SYNC 0 /* Mandatory for write functions */ +#define GET_SECTOR_COUNT 1 /* Mandatory for only f_mkfs() */ +#define GET_SECTOR_SIZE 2 /* Mandatory for multiple sector size cfg */ +#define GET_BLOCK_SIZE 3 /* Mandatory for only f_mkfs() */ +#define CTRL_POWER 4 +#define CTRL_LOCK 5 +#define CTRL_EJECT 6 +/* MMC/SDC command */ +#define MMC_GET_TYPE 10 +#define MMC_GET_CSD 11 +#define MMC_GET_CID 12 +#define MMC_GET_OCR 13 +#define MMC_GET_SDSTAT 14 +/* ATA/CF command */ +#define ATA_GET_REV 20 +#define ATA_GET_MODEL 21 +#define ATA_GET_SN 22 + + +#define _DISKIO +#endif diff --git a/Projects/TemperatureDataLogger/Lib/FATFs/ff.c b/Projects/TemperatureDataLogger/Lib/FATFs/ff.c index 6382fea1f..b30139055 100644 --- a/Projects/TemperatureDataLogger/Lib/FATFs/ff.c +++ b/Projects/TemperatureDataLogger/Lib/FATFs/ff.c @@ -1,3153 +1,3153 @@ -/*----------------------------------------------------------------------------/ -/ FatFs - FAT file system module R0.07e (C)ChaN, 2010 -/-----------------------------------------------------------------------------/ -/ FatFs module is a generic FAT file system module for small embedded systems. -/ This is a free software that opened for education, research and commercial -/ developments under license policy of following trems. -/ -/ Copyright (C) 2010, ChaN, all right reserved. -/ -/ * The FatFs module is a free software and there is NO WARRANTY. -/ * No restriction on use. You can use, modify and redistribute it for -/ personal, non-profit or commercial products UNDER YOUR RESPONSIBILITY. -/ * Redistributions of source code must retain the above copyright notice. -/ -/-----------------------------------------------------------------------------/ -/ Feb 26,'06 R0.00 Prototype. -/ -/ Apr 29,'06 R0.01 First stable version. -/ -/ Jun 01,'06 R0.02 Added FAT12 support. -/ Removed unbuffered mode. -/ Fixed a problem on small (<32M) patition. -/ Jun 10,'06 R0.02a Added a configuration option (_FS_MINIMUM). -/ -/ Sep 22,'06 R0.03 Added f_rename(). -/ Changed option _FS_MINIMUM to _FS_MINIMIZE. -/ Dec 11,'06 R0.03a Improved cluster scan algolithm to write files fast. -/ Fixed f_mkdir() creates incorrect directory on FAT32. -/ -/ Feb 04,'07 R0.04 Supported multiple drive system. -/ Changed some interfaces for multiple drive system. -/ Changed f_mountdrv() to f_mount(). -/ Added f_mkfs(). -/ Apr 01,'07 R0.04a Supported multiple partitions on a plysical drive. -/ Added a capability of extending file size to f_lseek(). -/ Added minimization level 3. -/ Fixed an endian sensitive code in f_mkfs(). -/ May 05,'07 R0.04b Added a configuration option _USE_NTFLAG. -/ Added FSInfo support. -/ Fixed DBCS name can result FR_INVALID_NAME. -/ Fixed short seek (<= csize) collapses the file object. -/ -/ Aug 25,'07 R0.05 Changed arguments of f_read(), f_write() and f_mkfs(). -/ Fixed f_mkfs() on FAT32 creates incorrect FSInfo. -/ Fixed f_mkdir() on FAT32 creates incorrect directory. -/ Feb 03,'08 R0.05a Added f_truncate() and f_utime(). -/ Fixed off by one error at FAT sub-type determination. -/ Fixed btr in f_read() can be mistruncated. -/ Fixed cached sector is not flushed when create and close -/ without write. -/ -/ Apr 01,'08 R0.06 Added fputc(), fputs(), fprintf() and fgets(). -/ Improved performance of f_lseek() on moving to the same -/ or following cluster. -/ -/ Apr 01,'09 R0.07 Merged Tiny-FatFs as a buffer configuration option. -/ Added long file name support. -/ Added multiple code page support. -/ Added re-entrancy for multitask operation. -/ Added auto cluster size selection to f_mkfs(). -/ Added rewind option to f_readdir(). -/ Changed result code of critical errors. -/ Renamed string functions to avoid name collision. -/ Apr 14,'09 R0.07a Separated out OS dependent code on reentrant cfg. -/ Added multiple sector size support. -/ Jun 21,'09 R0.07c Fixed f_unlink() can return FR_OK on error. -/ Fixed wrong cache control in f_lseek(). -/ Added relative path feature. -/ Added f_chdir() and f_chdrive(). -/ Added proper case conversion to extended char. -/ Nov 03,'09 R0.07e Separated out configuration options from ff.h to ffconf.h. -/ Fixed f_unlink() fails to remove a sub-dir on _FS_RPATH. -/ Fixed name matching error on the 13 char boundary. -/ Added a configuration option, _LFN_UNICODE. -/ Changed f_readdir() to return the SFN with always upper -/ case on non-LFN cfg. -/---------------------------------------------------------------------------*/ - -#include "ff.h" /* FatFs configurations and declarations */ -#include "diskio.h" /* Declarations of low level disk I/O functions */ - -/*-------------------------------------------------------------------------- - - Module Private Definitions - ----------------------------------------------------------------------------*/ - -#if _FATFS != 0x007E -#error Wrong include file (ff.h). -#endif - -#if _FS_REENTRANT -#if _USE_LFN == 1 -#error Static LFN work area must not be used in re-entrant configuration. -#endif -#define ENTER_FF(fs) { if (!lock_fs(fs)) return FR_TIMEOUT; } -#define LEAVE_FF(fs, res) { unlock_fs(fs, res); return res; } - -#else -#define ENTER_FF(fs) -#define LEAVE_FF(fs, res) return res - -#endif - -#define ABORT(fs, res) { fp->flag |= FA__ERROR; LEAVE_FF(fs, res); } - -#ifndef NULL -#define NULL 0 -#endif - -/* Name status flags */ -#define NS 11 /* Offset of name status byte */ -#define NS_LOSS 0x01 /* Out of 8.3 format */ -#define NS_LFN 0x02 /* Force to create LFN entry */ -#define NS_LAST 0x04 /* Last segment */ -#define NS_BODY 0x08 /* Lower case flag (body) */ -#define NS_EXT 0x10 /* Lower case flag (ext) */ -#define NS_DOT 0x20 /* Dot entry */ - - - - -/*-------------------------------------------------------------------------- - - Private Work Area - ----------------------------------------------------------------------------*/ - -#if _DRIVES < 1 || _DRIVES > 9 -#error Number of drives must be 1-9. -#endif -static -FATFS *FatFs[_DRIVES]; /* Pointer to the file system objects (logical drives) */ - -static -WORD Fsid; /* File system mount ID */ - -#if _FS_RPATH -static -BYTE Drive; /* Current drive */ -#endif - - -#if _USE_LFN == 1 /* LFN with static LFN working buffer */ -static -WCHAR LfnBuf[_MAX_LFN + 1]; -#define NAMEBUF(sp,lp) BYTE sp[12]; WCHAR *lp = LfnBuf -#define INITBUF(dj,sp,lp) dj.fn = sp; dj.lfn = lp - -#elif _USE_LFN > 1 /* LFN with dynamic LFN working buffer */ -#define NAMEBUF(sp,lp) BYTE sp[12]; WCHAR lbuf[_MAX_LFN + 1], *lp = lbuf -#define INITBUF(dj,sp,lp) dj.fn = sp; dj.lfn = lp - -#else /* No LFN */ -#define NAMEBUF(sp,lp) BYTE sp[12] -#define INITBUF(dj,sp,lp) dj.fn = sp - -#endif - - - - -/*-------------------------------------------------------------------------- - - Module Private Functions - ----------------------------------------------------------------------------*/ - - -/*-----------------------------------------------------------------------*/ -/* String functions */ -/*-----------------------------------------------------------------------*/ - -/* Copy memory to memory */ -static -void mem_cpy (void* dst, const void* src, int cnt) { - char *d = (char*)dst; - const char *s = (const char *)src; - while (cnt--) *d++ = *s++; -} - -/* Fill memory */ -static -void mem_set (void* dst, int val, int cnt) { - char *d = (char*)dst; - while (cnt--) *d++ = (char)val; -} - -/* Compare memory to memory */ -static -int mem_cmp (const void* dst, const void* src, int cnt) { - const char *d = (const char *)dst, *s = (const char *)src; - int r = 0; - while (cnt-- && (r = *d++ - *s++) == 0) ; - return r; -} - -/* Check if chr is contained in the string */ -static -int chk_chr (const char* str, int chr) { - while (*str && *str != chr) str++; - return *str; -} - - - -/*-----------------------------------------------------------------------*/ -/* Request/Release grant to access the volume */ -/*-----------------------------------------------------------------------*/ -#if _FS_REENTRANT - -static -BOOL lock_fs ( - FATFS *fs /* File system object */ -) -{ - return ff_req_grant(fs->sobj); -} - - -static -void unlock_fs ( - FATFS *fs, /* File system object */ - FRESULT res /* Result code to be returned */ -) -{ - if (res != FR_NOT_ENABLED && - res != FR_INVALID_DRIVE && - res != FR_INVALID_OBJECT && - res != FR_TIMEOUT) { - ff_rel_grant(fs->sobj); - } -} -#endif - - - -/*-----------------------------------------------------------------------*/ -/* Change window offset */ -/*-----------------------------------------------------------------------*/ - -static -FRESULT move_window ( - FATFS *fs, /* File system object */ - DWORD sector /* Sector number to make apperance in the fs->win[] */ -) /* Move to zero only writes back dirty window */ -{ - DWORD wsect; - - - wsect = fs->winsect; - if (wsect != sector) { /* Changed current window */ -#if !_FS_READONLY - if (fs->wflag) { /* Write back dirty window if needed */ - if (disk_write(fs->drive, fs->win, wsect, 1) != RES_OK) - return FR_DISK_ERR; - fs->wflag = 0; - if (wsect < (fs->fatbase + fs->sects_fat)) { /* In FAT area */ - BYTE nf; - for (nf = fs->n_fats; nf > 1; nf--) { /* Refrect the change to all FAT copies */ - wsect += fs->sects_fat; - disk_write(fs->drive, fs->win, wsect, 1); - } - } - } -#endif - if (sector) { - if (disk_read(fs->drive, fs->win, sector, 1) != RES_OK) - return FR_DISK_ERR; - fs->winsect = sector; - } - } - - return FR_OK; -} - - - - -/*-----------------------------------------------------------------------*/ -/* Clean-up cached data */ -/*-----------------------------------------------------------------------*/ -#if !_FS_READONLY -static -FRESULT sync ( /* FR_OK: successful, FR_DISK_ERR: failed */ - FATFS *fs /* File system object */ -) -{ - FRESULT res; - - - res = move_window(fs, 0); - if (res == FR_OK) { - /* Update FSInfo sector if needed */ - if (fs->fs_type == FS_FAT32 && fs->fsi_flag) { - fs->winsect = 0; - mem_set(fs->win, 0, 512); - ST_WORD(fs->win+BS_55AA, 0xAA55); - ST_DWORD(fs->win+FSI_LeadSig, 0x41615252); - ST_DWORD(fs->win+FSI_StrucSig, 0x61417272); - ST_DWORD(fs->win+FSI_Free_Count, fs->free_clust); - ST_DWORD(fs->win+FSI_Nxt_Free, fs->last_clust); - disk_write(fs->drive, fs->win, fs->fsi_sector, 1); - fs->fsi_flag = 0; - } - /* Make sure that no pending write process in the physical drive */ - if (disk_ioctl(fs->drive, CTRL_SYNC, (void*)NULL) != RES_OK) - res = FR_DISK_ERR; - } - - return res; -} -#endif - - - - -/*-----------------------------------------------------------------------*/ -/* FAT access - Read value of a FAT entry */ -/*-----------------------------------------------------------------------*/ - - -DWORD get_fat ( /* 0xFFFFFFFF:Disk error, 1:Interal error, Else:Cluster status */ - FATFS *fs, /* File system object */ - DWORD clst /* Cluster# to get the link information */ -) -{ - UINT wc, bc; - DWORD fsect; - - - if (clst < 2 || clst >= fs->max_clust) /* Range check */ - return 1; - - fsect = fs->fatbase; - switch (fs->fs_type) { - case FS_FAT12 : - bc = clst; bc += bc / 2; - if (move_window(fs, fsect + (bc / SS(fs)))) break; - wc = fs->win[bc & (SS(fs) - 1)]; bc++; - if (move_window(fs, fsect + (bc / SS(fs)))) break; - wc |= (WORD)fs->win[bc & (SS(fs) - 1)] << 8; - return (clst & 1) ? (wc >> 4) : (wc & 0xFFF); - - case FS_FAT16 : - if (move_window(fs, fsect + (clst / (SS(fs) / 2)))) break; - return LD_WORD(&fs->win[((WORD)clst * 2) & (SS(fs) - 1)]); - - case FS_FAT32 : - if (move_window(fs, fsect + (clst / (SS(fs) / 4)))) break; - return LD_DWORD(&fs->win[((WORD)clst * 4) & (SS(fs) - 1)]) & 0x0FFFFFFF; - } - - return 0xFFFFFFFF; /* An error occured at the disk I/O layer */ -} - - - - -/*-----------------------------------------------------------------------*/ -/* FAT access - Change value of a FAT entry */ -/*-----------------------------------------------------------------------*/ -#if !_FS_READONLY - -FRESULT put_fat ( - FATFS *fs, /* File system object */ - DWORD clst, /* Cluster# to be changed in range of 2 to fs->max_clust - 1 */ - DWORD val /* New value to mark the cluster */ -) -{ - UINT bc; - BYTE *p; - DWORD fsect; - FRESULT res; - - - if (clst < 2 || clst >= fs->max_clust) { /* Range check */ - res = FR_INT_ERR; - - } else { - fsect = fs->fatbase; - switch (fs->fs_type) { - case FS_FAT12 : - bc = clst; bc += bc / 2; - res = move_window(fs, fsect + (bc / SS(fs))); - if (res != FR_OK) break; - p = &fs->win[bc & (SS(fs) - 1)]; - *p = (clst & 1) ? ((*p & 0x0F) | ((BYTE)val << 4)) : (BYTE)val; - bc++; - fs->wflag = 1; - res = move_window(fs, fsect + (bc / SS(fs))); - if (res != FR_OK) break; - p = &fs->win[bc & (SS(fs) - 1)]; - *p = (clst & 1) ? (BYTE)(val >> 4) : ((*p & 0xF0) | ((BYTE)(val >> 8) & 0x0F)); - break; - - case FS_FAT16 : - res = move_window(fs, fsect + (clst / (SS(fs) / 2))); - if (res != FR_OK) break; - ST_WORD(&fs->win[((WORD)clst * 2) & (SS(fs) - 1)], (WORD)val); - break; - - case FS_FAT32 : - res = move_window(fs, fsect + (clst / (SS(fs) / 4))); - if (res != FR_OK) break; - ST_DWORD(&fs->win[((WORD)clst * 4) & (SS(fs) - 1)], val); - break; - - default : - res = FR_INT_ERR; - } - fs->wflag = 1; - } - - return res; -} -#endif /* !_FS_READONLY */ - - - - -/*-----------------------------------------------------------------------*/ -/* FAT handling - Remove a cluster chain */ -/*-----------------------------------------------------------------------*/ -#if !_FS_READONLY -static -FRESULT remove_chain ( - FATFS *fs, /* File system object */ - DWORD clst /* Cluster# to remove a chain from */ -) -{ - FRESULT res; - DWORD nxt; - - - if (clst < 2 || clst >= fs->max_clust) { /* Check the range of cluster# */ - res = FR_INT_ERR; - - } else { - res = FR_OK; - while (clst < fs->max_clust) { /* Not a last link? */ - nxt = get_fat(fs, clst); /* Get cluster status */ - if (nxt == 0) break; /* Empty cluster? */ - if (nxt == 1) { res = FR_INT_ERR; break; } /* Internal error? */ - if (nxt == 0xFFFFFFFF) { res = FR_DISK_ERR; break; } /* Disk error? */ - res = put_fat(fs, clst, 0); /* Mark the cluster "empty" */ - if (res != FR_OK) break; - if (fs->free_clust != 0xFFFFFFFF) { /* Update FSInfo */ - fs->free_clust++; - fs->fsi_flag = 1; - } - clst = nxt; /* Next cluster */ - } - } - - return res; -} -#endif - - - - -/*-----------------------------------------------------------------------*/ -/* FAT handling - Stretch or Create a cluster chain */ -/*-----------------------------------------------------------------------*/ -#if !_FS_READONLY -static -DWORD create_chain ( /* 0:No free cluster, 1:Internal error, 0xFFFFFFFF:Disk error, >=2:New cluster# */ - FATFS *fs, /* File system object */ - DWORD clst /* Cluster# to stretch. 0 means create a new chain. */ -) -{ - DWORD cs, ncl, scl, mcl; - - - mcl = fs->max_clust; - if (clst == 0) { /* Create new chain */ - scl = fs->last_clust; /* Get suggested start point */ - if (scl == 0 || scl >= mcl) scl = 1; - } - else { /* Stretch existing chain */ - cs = get_fat(fs, clst); /* Check the cluster status */ - if (cs < 2) return 1; /* It is an invalid cluster */ - if (cs < mcl) return cs; /* It is already followed by next cluster */ - scl = clst; - } - - ncl = scl; /* Start cluster */ - for (;;) { - ncl++; /* Next cluster */ - if (ncl >= mcl) { /* Wrap around */ - ncl = 2; - if (ncl > scl) return 0; /* No free custer */ - } - cs = get_fat(fs, ncl); /* Get the cluster status */ - if (cs == 0) break; /* Found a free cluster */ - if (cs == 0xFFFFFFFF || cs == 1)/* An error occured */ - return cs; - if (ncl == scl) return 0; /* No free custer */ - } - - if (put_fat(fs, ncl, 0x0FFFFFFF)) /* Mark the new cluster "in use" */ - return 0xFFFFFFFF; - if (clst != 0) { /* Link it to the previous one if needed */ - if (put_fat(fs, clst, ncl)) - return 0xFFFFFFFF; - } - - fs->last_clust = ncl; /* Update FSINFO */ - if (fs->free_clust != 0xFFFFFFFF) { - fs->free_clust--; - fs->fsi_flag = 1; - } - - return ncl; /* Return new cluster number */ -} -#endif /* !_FS_READONLY */ - - - - -/*-----------------------------------------------------------------------*/ -/* Get sector# from cluster# */ -/*-----------------------------------------------------------------------*/ - - -DWORD clust2sect ( /* !=0: Sector number, 0: Failed - invalid cluster# */ - FATFS *fs, /* File system object */ - DWORD clst /* Cluster# to be converted */ -) -{ - clst -= 2; - if (clst >= (fs->max_clust - 2)) return 0; /* Invalid cluster# */ - return clst * fs->csize + fs->database; -} - - - - -/*-----------------------------------------------------------------------*/ -/* Directory handling - Seek directory index */ -/*-----------------------------------------------------------------------*/ - -static -FRESULT dir_seek ( - DIR *dj, /* Pointer to directory object */ - WORD idx /* Directory index number */ -) -{ - DWORD clst; - WORD ic; - - - dj->index = idx; - clst = dj->sclust; - if (clst == 1 || clst >= dj->fs->max_clust) /* Check start cluster range */ - return FR_INT_ERR; - if (!clst && dj->fs->fs_type == FS_FAT32) /* Replace cluster# 0 with root cluster# if in FAT32 */ - clst = dj->fs->dirbase; - - if (clst == 0) { /* Static table */ - dj->clust = clst; - if (idx >= dj->fs->n_rootdir) /* Index is out of range */ - return FR_INT_ERR; - dj->sect = dj->fs->dirbase + idx / (SS(dj->fs) / 32); /* Sector# */ - } - else { /* Dynamic table */ - ic = SS(dj->fs) / 32 * dj->fs->csize; /* Entries per cluster */ - while (idx >= ic) { /* Follow cluster chain */ - clst = get_fat(dj->fs, clst); /* Get next cluster */ - if (clst == 0xFFFFFFFF) return FR_DISK_ERR; /* Disk error */ - if (clst < 2 || clst >= dj->fs->max_clust) /* Reached to end of table or int error */ - return FR_INT_ERR; - idx -= ic; - } - dj->clust = clst; - dj->sect = clust2sect(dj->fs, clst) + idx / (SS(dj->fs) / 32); /* Sector# */ - } - - dj->dir = dj->fs->win + (idx % (SS(dj->fs) / 32)) * 32; /* Ptr to the entry in the sector */ - - return FR_OK; /* Seek succeeded */ -} - - - - -/*-----------------------------------------------------------------------*/ -/* Directory handling - Move directory index next */ -/*-----------------------------------------------------------------------*/ - -static -FRESULT dir_next ( /* FR_OK:Succeeded, FR_NO_FILE:End of table, FR_DENIED:EOT and could not streach */ - DIR *dj, /* Pointer to directory object */ - BOOL streach /* FALSE: Do not streach table, TRUE: Streach table if needed */ -) -{ - DWORD clst; - WORD i; - - - i = dj->index + 1; - if (!i || !dj->sect) /* Report EOT when index has reached 65535 */ - return FR_NO_FILE; - - if (!(i % (SS(dj->fs) / 32))) { /* Sector changed? */ - dj->sect++; /* Next sector */ - - if (dj->clust == 0) { /* Static table */ - if (i >= dj->fs->n_rootdir) /* Report EOT when end of table */ - return FR_NO_FILE; - } - else { /* Dynamic table */ - if (((i / (SS(dj->fs) / 32)) & (dj->fs->csize - 1)) == 0) { /* Cluster changed? */ - clst = get_fat(dj->fs, dj->clust); /* Get next cluster */ - if (clst <= 1) return FR_INT_ERR; - if (clst == 0xFFFFFFFF) return FR_DISK_ERR; - if (clst >= dj->fs->max_clust) { /* When it reached end of dynamic table */ -#if !_FS_READONLY - BYTE c; - if (!streach) return FR_NO_FILE; /* When do not streach, report EOT */ - clst = create_chain(dj->fs, dj->clust); /* Streach cluster chain */ - if (clst == 0) return FR_DENIED; /* No free cluster */ - if (clst == 1) return FR_INT_ERR; - if (clst == 0xFFFFFFFF) return FR_DISK_ERR; - /* Clean-up streached table */ - if (move_window(dj->fs, 0)) return FR_DISK_ERR; /* Flush active window */ - mem_set(dj->fs->win, 0, SS(dj->fs)); /* Clear window buffer */ - dj->fs->winsect = clust2sect(dj->fs, clst); /* Cluster start sector */ - for (c = 0; c < dj->fs->csize; c++) { /* Fill the new cluster with 0 */ - dj->fs->wflag = 1; - if (move_window(dj->fs, 0)) return FR_DISK_ERR; - dj->fs->winsect++; - } - dj->fs->winsect -= c; /* Rewind window address */ -#else - return FR_NO_FILE; /* Report EOT */ -#endif - } - dj->clust = clst; /* Initialize data for new cluster */ - dj->sect = clust2sect(dj->fs, clst); - } - } - } - - dj->index = i; - dj->dir = dj->fs->win + (i % (SS(dj->fs) / 32)) * 32; - - return FR_OK; -} - - - - -/*-----------------------------------------------------------------------*/ -/* LFN handling - Test/Pick/Fit an LFN segment from/to directory entry */ -/*-----------------------------------------------------------------------*/ -#if _USE_LFN -static -const BYTE LfnOfs[] = {1,3,5,7,9,14,16,18,20,22,24,28,30}; /* Offset of LFN chars in the directory entry */ - - -static -BOOL cmp_lfn ( /* TRUE:Matched, FALSE:Not matched */ - WCHAR *lfnbuf, /* Pointer to the LFN to be compared */ - BYTE *dir /* Pointer to the directory entry containing a part of LFN */ -) -{ - int i, s; - WCHAR wc, uc; - - - i = ((dir[LDIR_Ord] & 0xBF) - 1) * 13; /* Get offset in the LFN buffer */ - s = 0; wc = 1; - do { - uc = LD_WORD(dir+LfnOfs[s]); /* Pick an LFN character from the entry */ - if (wc) { /* Last char has not been processed */ - wc = ff_wtoupper(uc); /* Convert it to upper case */ - if (i >= _MAX_LFN || wc != ff_wtoupper(lfnbuf[i++])) /* Compare it */ - return FALSE; /* Not matched */ - } else { - if (uc != 0xFFFF) return FALSE; /* Check filler */ - } - } while (++s < 13); /* Repeat until all chars in the entry are checked */ - - if ((dir[LDIR_Ord] & 0x40) && wc && lfnbuf[i]) /* Last segment matched but different length */ - return FALSE; - - return TRUE; /* The part of LFN matched */ -} - - - -static -BOOL pick_lfn ( /* TRUE:Succeeded, FALSE:Buffer overflow */ - WCHAR *lfnbuf, /* Pointer to the Unicode-LFN buffer */ - BYTE *dir /* Pointer to the directory entry */ -) -{ - int i, s; - WCHAR wc, uc; - - - i = ((dir[LDIR_Ord] & 0x3F) - 1) * 13; /* Offset in the LFN buffer */ - - s = 0; wc = 1; - do { - uc = LD_WORD(dir+LfnOfs[s]); /* Pick an LFN character from the entry */ - if (wc) { /* Last char has not been processed */ - if (i >= _MAX_LFN) return FALSE; /* Buffer overflow? */ - lfnbuf[i++] = wc = uc; /* Store it */ - } else { - if (uc != 0xFFFF) return FALSE; /* Check filler */ - } - } while (++s < 13); /* Read all character in the entry */ - - if (dir[LDIR_Ord] & 0x40) { /* Put terminator if it is the last LFN part */ - if (i >= _MAX_LFN) return FALSE; /* Buffer overflow? */ - lfnbuf[i] = 0; - } - - return TRUE; -} - - -#if !_FS_READONLY -static -void fit_lfn ( - const WCHAR *lfnbuf, /* Pointer to the LFN buffer */ - BYTE *dir, /* Pointer to the directory entry */ - BYTE ord, /* LFN order (1-20) */ - BYTE sum /* SFN sum */ -) -{ - int i, s; - WCHAR wc; - - - dir[LDIR_Chksum] = sum; /* Set check sum */ - dir[LDIR_Attr] = AM_LFN; /* Set attribute. LFN entry */ - dir[LDIR_Type] = 0; - ST_WORD(dir+LDIR_FstClusLO, 0); - - i = (ord - 1) * 13; /* Get offset in the LFN buffer */ - s = wc = 0; - do { - if (wc != 0xFFFF) wc = lfnbuf[i++]; /* Get an effective char */ - ST_WORD(dir+LfnOfs[s], wc); /* Put it */ - if (!wc) wc = 0xFFFF; /* Padding chars following last char */ - } while (++s < 13); - if (wc == 0xFFFF || !lfnbuf[i]) ord |= 0x40; /* Bottom LFN part is the start of LFN sequence */ - dir[LDIR_Ord] = ord; /* Set the LFN order */ -} - -#endif -#endif - - - -/*-----------------------------------------------------------------------*/ -/* Create numbered name */ -/*-----------------------------------------------------------------------*/ -#if _USE_LFN -void gen_numname ( - BYTE *dst, /* Pointer to genartated SFN */ - const BYTE *src, /* Pointer to source SFN to be modified */ - const WCHAR *lfn, /* Pointer to LFN */ - WORD num /* Sequense number */ -) -{ - char ns[8]; - int i, j; - - - mem_cpy(dst, src, 11); - - if (num > 5) { /* On many collisions, generate a hash number instead of sequencial number */ - do num = (num >> 1) + (num << 15) + (WORD)*lfn++; while (*lfn); - } - - /* itoa */ - i = 7; - do { - ns[i--] = (num % 10) + '0'; - num /= 10; - } while (num); - ns[i] = '~'; - - /* Append the number */ - for (j = 0; j < i && dst[j] != ' '; j++) { - if (IsDBCS1(dst[j])) { - if (j == i - 1) break; - j++; - } - } - do { - dst[j++] = (i < 8) ? ns[i++] : ' '; - } while (j < 8); -} -#endif - - - - -/*-----------------------------------------------------------------------*/ -/* Calculate sum of an SFN */ -/*-----------------------------------------------------------------------*/ -#if _USE_LFN -static -BYTE sum_sfn ( - const BYTE *dir /* Ptr to directory entry */ -) -{ - BYTE sum = 0; - int n = 11; - - do sum = (sum >> 1) + (sum << 7) + *dir++; while (--n); - return sum; -} -#endif - - - - -/*-----------------------------------------------------------------------*/ -/* Directory handling - Find an object in the directory */ -/*-----------------------------------------------------------------------*/ - -static -FRESULT dir_find ( - DIR *dj /* Pointer to the directory object linked to the file name */ -) -{ - FRESULT res; - BYTE c, *dir; -#if _USE_LFN - BYTE a, ord, sum; -#endif - - res = dir_seek(dj, 0); /* Rewind directory object */ - if (res != FR_OK) return res; - -#if _USE_LFN - ord = sum = 0xFF; -#endif - do { - res = move_window(dj->fs, dj->sect); - if (res != FR_OK) break; - dir = dj->dir; /* Ptr to the directory entry of current index */ - c = dir[DIR_Name]; - if (c == 0) { res = FR_NO_FILE; break; } /* Reached to end of table */ -#if _USE_LFN /* LFN configuration */ - a = dir[DIR_Attr] & AM_MASK; - if (c == 0xE5 || ((a & AM_VOL) && a != AM_LFN)) { /* An entry without valid data */ - ord = 0xFF; - } else { - if (a == AM_LFN) { /* An LFN entry is found */ - if (dj->lfn) { - if (c & 0x40) { /* Is it start of LFN sequence? */ - sum = dir[LDIR_Chksum]; - c &= 0xBF; ord = c; /* LFN start order */ - dj->lfn_idx = dj->index; - } - /* Check validity of the LFN entry and compare it with given name */ - ord = (c == ord && sum == dir[LDIR_Chksum] && cmp_lfn(dj->lfn, dir)) ? ord - 1 : 0xFF; - } - } else { /* An SFN entry is found */ - if (!ord && sum == sum_sfn(dir)) break; /* LFN matched? */ - ord = 0xFF; dj->lfn_idx = 0xFFFF; /* Reset LFN sequence */ - if (!(dj->fn[NS] & NS_LOSS) && !mem_cmp(dir, dj->fn, 11)) break; /* SFN matched? */ - } - } -#else /* Non LFN configuration */ - if (!(dir[DIR_Attr] & AM_VOL) && !mem_cmp(dir, dj->fn, 11)) /* Is it a valid entry? */ - break; -#endif - res = dir_next(dj, FALSE); /* Next entry */ - } while (res == FR_OK); - - return res; -} - - - - -/*-----------------------------------------------------------------------*/ -/* Read an object from the directory */ -/*-----------------------------------------------------------------------*/ -#if _FS_MINIMIZE <= 1 -static -FRESULT dir_read ( - DIR *dj /* Pointer to the directory object that pointing the entry to be read */ -) -{ - FRESULT res; - BYTE c, *dir; -#if _USE_LFN - BYTE a, ord = 0xFF, sum = 0xFF; -#endif - - res = FR_NO_FILE; - while (dj->sect) { - res = move_window(dj->fs, dj->sect); - if (res != FR_OK) break; - dir = dj->dir; /* Ptr to the directory entry of current index */ - c = dir[DIR_Name]; - if (c == 0) { res = FR_NO_FILE; break; } /* Reached to end of table */ -#if _USE_LFN /* LFN configuration */ - a = dir[DIR_Attr] & AM_MASK; - if (c == 0xE5 || (!_FS_RPATH && c == '.') || ((a & AM_VOL) && a != AM_LFN)) { /* An entry without valid data */ - ord = 0xFF; - } else { - if (a == AM_LFN) { /* An LFN entry is found */ - if (c & 0x40) { /* Is it start of LFN sequence? */ - sum = dir[LDIR_Chksum]; - c &= 0xBF; ord = c; - dj->lfn_idx = dj->index; - } - /* Check LFN validity and capture it */ - ord = (c == ord && sum == dir[LDIR_Chksum] && pick_lfn(dj->lfn, dir)) ? ord - 1 : 0xFF; - } else { /* An SFN entry is found */ - if (ord || sum != sum_sfn(dir)) /* Is there a valid LFN? */ - dj->lfn_idx = 0xFFFF; /* It has no LFN. */ - break; - } - } -#else /* Non LFN configuration */ - if (c != 0xE5 && (_FS_RPATH || c != '.') && !(dir[DIR_Attr] & AM_VOL)) /* Is it a valid entry? */ - break; -#endif - res = dir_next(dj, FALSE); /* Next entry */ - if (res != FR_OK) break; - } - - if (res != FR_OK) dj->sect = 0; - - return res; -} -#endif - - - -/*-----------------------------------------------------------------------*/ -/* Register an object to the directory */ -/*-----------------------------------------------------------------------*/ -#if !_FS_READONLY -static -FRESULT dir_register ( /* FR_OK:Successful, FR_DENIED:No free entry or too many SFN collision, FR_DISK_ERR:Disk error */ - DIR *dj /* Target directory with object name to be created */ -) -{ - FRESULT res; - BYTE c, *dir; -#if _USE_LFN /* LFN configuration */ - WORD n, ne, is; - BYTE sn[12], *fn, sum; - WCHAR *lfn; - - - fn = dj->fn; lfn = dj->lfn; - mem_cpy(sn, fn, 12); - - if (_FS_RPATH && (sn[NS] & NS_DOT)) return FR_INVALID_NAME; /* Cannot create dot entry */ - - if (sn[NS] & NS_LOSS) { /* When LFN is out of 8.3 format, generate a numbered name */ - fn[NS] = 0; dj->lfn = NULL; /* Find only SFN */ - for (n = 1; n < 100; n++) { - gen_numname(fn, sn, lfn, n); /* Generate a numbered name */ - res = dir_find(dj); /* Check if the name collides with existing SFN */ - if (res != FR_OK) break; - } - if (n == 100) return FR_DENIED; /* Abort if too many collisions */ - if (res != FR_NO_FILE) return res; /* Abort if the result is other than 'not collided' */ - fn[NS] = sn[NS]; dj->lfn = lfn; - } - - if (sn[NS] & NS_LFN) { /* When LFN is to be created, reserve reserve an SFN + LFN entries. */ - for (ne = 0; lfn[ne]; ne++) ; - ne = (ne + 25) / 13; - } else { /* Otherwise reserve only an SFN entry. */ - ne = 1; - } - - /* Reserve contiguous entries */ - res = dir_seek(dj, 0); - if (res != FR_OK) return res; - n = is = 0; - do { - res = move_window(dj->fs, dj->sect); - if (res != FR_OK) break; - c = *dj->dir; /* Check the entry status */ - if (c == 0xE5 || c == 0) { /* Is it a blank entry? */ - if (n == 0) is = dj->index; /* First index of the contigulus entry */ - if (++n == ne) break; /* A contiguous entry that requiered count is found */ - } else { - n = 0; /* Not a blank entry. Restart to search */ - } - res = dir_next(dj, TRUE); /* Next entry with table streach */ - } while (res == FR_OK); - - if (res == FR_OK && ne > 1) { /* Initialize LFN entry if needed */ - res = dir_seek(dj, is); - if (res == FR_OK) { - sum = sum_sfn(dj->fn); /* Sum of the SFN tied to the LFN */ - ne--; - do { /* Store LFN entries in bottom first */ - res = move_window(dj->fs, dj->sect); - if (res != FR_OK) break; - fit_lfn(dj->lfn, dj->dir, (BYTE)ne, sum); - dj->fs->wflag = 1; - res = dir_next(dj, FALSE); /* Next entry */ - } while (res == FR_OK && --ne); - } - } - -#else /* Non LFN configuration */ - res = dir_seek(dj, 0); - if (res == FR_OK) { - do { /* Find a blank entry for the SFN */ - res = move_window(dj->fs, dj->sect); - if (res != FR_OK) break; - c = *dj->dir; - if (c == 0xE5 || c == 0) break; /* Is it a blank entry? */ - res = dir_next(dj, TRUE); /* Next entry with table streach */ - } while (res == FR_OK); - } -#endif - - if (res == FR_OK) { /* Initialize the SFN entry */ - res = move_window(dj->fs, dj->sect); - if (res == FR_OK) { - dir = dj->dir; - mem_set(dir, 0, 32); /* Clean the entry */ - mem_cpy(dir, dj->fn, 11); /* Put SFN */ - dir[DIR_NTres] = *(dj->fn+NS) & (NS_BODY | NS_EXT); /* Put NT flag */ - dj->fs->wflag = 1; - } - } - - return res; -} -#endif /* !_FS_READONLY */ - - - - -/*-----------------------------------------------------------------------*/ -/* Remove an object from the directory */ -/*-----------------------------------------------------------------------*/ -#if !_FS_READONLY && !_FS_MINIMIZE -static -FRESULT dir_remove ( /* FR_OK: Successful, FR_DISK_ERR: A disk error */ - DIR *dj /* Directory object pointing the entry to be removed */ -) -{ - FRESULT res; -#if _USE_LFN /* LFN configuration */ - WORD i; - - i = dj->index; /* SFN index */ - res = dir_seek(dj, (WORD)((dj->lfn_idx == 0xFFFF) ? i : dj->lfn_idx)); /* Goto the SFN or top of the LFN entries */ - if (res == FR_OK) { - do { - res = move_window(dj->fs, dj->sect); - if (res != FR_OK) break; - *dj->dir = 0xE5; /* Mark the entry "deleted" */ - dj->fs->wflag = 1; - if (dj->index >= i) break; /* When reached SFN, all entries of the object has been deleted. */ - res = dir_next(dj, FALSE); /* Next entry */ - } while (res == FR_OK); - if (res == FR_NO_FILE) res = FR_INT_ERR; - } - -#else /* Non LFN configuration */ - res = dir_seek(dj, dj->index); - if (res == FR_OK) { - res = move_window(dj->fs, dj->sect); - if (res == FR_OK) { - *dj->dir = 0xE5; /* Mark the entry "deleted" */ - dj->fs->wflag = 1; - } - } -#endif - - return res; -} -#endif /* !_FS_READONLY */ - - - - -/*-----------------------------------------------------------------------*/ -/* Pick a segment and create the object name in directory form */ -/*-----------------------------------------------------------------------*/ - -static -FRESULT create_name ( - DIR *dj, /* Pointer to the directory object */ - const XCHAR **path /* Pointer to pointer to the segment in the path string */ -) -{ -#ifdef _EXCVT - static const BYTE cvt[] = _EXCVT; -#endif - -#if _USE_LFN /* LFN configuration */ - BYTE b, cf; - WCHAR w, *lfn; - int i, ni, si, di; - const XCHAR *p; - - /* Create LFN in Unicode */ - si = di = 0; - p = *path; - lfn = dj->lfn; - for (;;) { - w = p[si++]; /* Get a character */ - if (w < ' ' || w == '/' || w == '\\') break; /* Break on end of segment */ - if (di >= _MAX_LFN) /* Reject too long name */ - return FR_INVALID_NAME; -#if !_LFN_UNICODE - w &= 0xFF; - if (IsDBCS1(w)) { /* If it is a DBC 1st byte */ - b = p[si++]; /* Get 2nd byte */ - if (!IsDBCS2(b)) /* Reject invalid code for DBC */ - return FR_INVALID_NAME; - w = (w << 8) + b; - } - w = ff_convert(w, 1); /* Convert OEM to Unicode */ - if (!w) return FR_INVALID_NAME; /* Reject invalid code */ -#endif - if (w < 0x80 && chk_chr("\"*:<>\?|\x7F", w)) /* Reject illegal chars for LFN */ - return FR_INVALID_NAME; - lfn[di++] = w; /* Store the Unicode char */ - } - *path = &p[si]; /* Rerurn pointer to the next segment */ - cf = (w < ' ') ? NS_LAST : 0; /* Set last segment flag if end of path */ -#if _FS_RPATH - if ((di == 1 && lfn[di - 1] == '.') || /* Is this a dot entry? */ - (di == 2 && lfn[di - 1] == '.' && lfn[di - 2] == '.')) { - lfn[di] = 0; - for (i = 0; i < 11; i++) - dj->fn[i] = (i < di) ? '.' : ' '; - dj->fn[i] = cf | NS_DOT; /* This is a dot entry */ - return FR_OK; - } -#endif - while (di) { /* Strip trailing spaces and dots */ - w = lfn[di - 1]; - if (w != ' ' && w != '.') break; - di--; - } - if (!di) return FR_INVALID_NAME; /* Reject null string */ - - lfn[di] = 0; /* LFN is created */ - - /* Create SFN in directory form */ - mem_set(dj->fn, ' ', 11); - for (si = 0; lfn[si] == ' ' || lfn[si] == '.'; si++) ; /* Strip leading spaces and dots */ - if (si) cf |= NS_LOSS | NS_LFN; - while (di && lfn[di - 1] != '.') di--; /* Find extension (di<=si: no extension) */ - - b = i = 0; ni = 8; - for (;;) { - w = lfn[si++]; /* Get an LFN char */ - if (!w) break; /* Break on enf of the LFN */ - if (w == ' ' || (w == '.' && si != di)) { /* Remove spaces and dots */ - cf |= NS_LOSS | NS_LFN; continue; - } - - if (i >= ni || si == di) { /* Extension or end of SFN */ - if (ni == 11) { /* Long extension */ - cf |= NS_LOSS | NS_LFN; break; - } - if (si != di) cf |= NS_LOSS | NS_LFN; /* Out of 8.3 format */ - if (si > di) break; /* No extension */ - si = di; i = 8; ni = 11; /* Enter extension section */ - b <<= 2; continue; - } - - if (w >= 0x80) { /* Non ASCII char */ -#ifdef _EXCVT - w = ff_convert(w, 0); /* Unicode -> OEM code */ - if (w) w = cvt[w - 0x80]; /* Convert extended char to upper (SBCS) */ -#else - w = ff_convert(ff_wtoupper(w), 0); /* Upper converted Unicode -> OEM code */ -#endif - cf |= NS_LFN; /* Force create LFN entry */ - } - - if (_DF1S && w >= 0x100) { /* Double byte char */ - if (i >= ni - 1) { - cf |= NS_LOSS | NS_LFN; i = ni; continue; - } - dj->fn[i++] = (BYTE)(w >> 8); - } else { /* Single byte char */ - if (!w || chk_chr("+,;[=]", w)) { /* Replace illegal chars for SFN */ - w = '_'; cf |= NS_LOSS | NS_LFN; /* Lossy conversion */ - } else { - if (IsUpper(w)) { /* ASCII large capital */ - b |= 2; - } else { - if (IsLower(w)) { /* ASCII small capital */ - b |= 1; w -= 0x20; - } - } - } - } - dj->fn[i++] = (BYTE)w; - } - - if (dj->fn[0] == 0xE5) dj->fn[0] = 0x05; /* If the first char collides with deleted mark, replace it with 0x05 */ - - if (ni == 8) b <<= 2; - if ((b & 0x0C) == 0x0C || (b & 0x03) == 0x03) /* Create LFN entry when there are composite capitals */ - cf |= NS_LFN; - if (!(cf & NS_LFN)) { /* When LFN is in 8.3 format without extended char, NT flags are created */ - if ((b & 0x03) == 0x01) cf |= NS_EXT; /* NT flag (Extension has only small capital) */ - if ((b & 0x0C) == 0x04) cf |= NS_BODY; /* NT flag (Filename has only small capital) */ - } - - dj->fn[NS] = cf; /* SFN is created */ - - return FR_OK; - - -#else /* Non-LFN configuration */ - BYTE b, c, d, *sfn; - int ni, si, i; - const char *p; - - /* Create file name in directory form */ - sfn = dj->fn; - mem_set(sfn, ' ', 11); - si = i = b = 0; ni = 8; - p = *path; -#if _FS_RPATH - if (p[si] == '.') { /* Is this a dot entry? */ - for (;;) { - c = p[si++]; - if (c != '.' || si >= 3) break; - sfn[i++] = c; - } - if (c != '/' && c != '\\' && c > ' ') return FR_INVALID_NAME; - *path = &p[si]; /* Rerurn pointer to the next segment */ - sfn[NS] = (c <= ' ') ? NS_LAST | NS_DOT : NS_DOT; /* Set last segment flag if end of path */ - return FR_OK; - } -#endif - for (;;) { - c = p[si++]; - if (c <= ' ' || c == '/' || c == '\\') break; /* Break on end of segment */ - if (c == '.' || i >= ni) { - if (ni != 8 || c != '.') return FR_INVALID_NAME; - i = 8; ni = 11; - b <<= 2; continue; - } - if (c >= 0x80) { /* Extended char */ -#ifdef _EXCVT - c = cvt[c - 0x80]; /* Convert extend char (SBCS) */ -#else - b |= 3; /* Eliminate NT flag if ext char is exist */ -#if !_DF1S /* ASCII only cfg */ - return FR_INVALID_NAME; -#endif -#endif - } - if (IsDBCS1(c)) { /* DBC 1st byte? */ - d = p[si++]; /* Get 2nd byte */ - if (!IsDBCS2(d) || i >= ni - 1) /* Reject invalid DBC */ - return FR_INVALID_NAME; - sfn[i++] = c; - sfn[i++] = d; - } else { /* Single byte code */ - if (chk_chr(" \"*+,[=]|\x7F", c)) /* Reject illegal chrs for SFN */ - return FR_INVALID_NAME; - if (IsUpper(c)) { /* ASCII large capital? */ - b |= 2; - } else { - if (IsLower(c)) { /* ASCII small capital? */ - b |= 1; c -= 0x20; - } - } - sfn[i++] = c; - } - } - *path = &p[si]; /* Rerurn pointer to the next segment */ - c = (c <= ' ') ? NS_LAST : 0; /* Set last segment flag if end of path */ - - if (!i) return FR_INVALID_NAME; /* Reject null string */ - if (sfn[0] == 0xE5) sfn[0] = 0x05; /* When first char collides with 0xE5, replace it with 0x05 */ - - if (ni == 8) b <<= 2; - if ((b & 0x03) == 0x01) c |= NS_EXT; /* NT flag (Extension has only small capital) */ - if ((b & 0x0C) == 0x04) c |= NS_BODY; /* NT flag (Filename has only small capital) */ - - sfn[NS] = c; /* Store NT flag, File name is created */ - - return FR_OK; -#endif -} - - - - -/*-----------------------------------------------------------------------*/ -/* Get file information from directory entry */ -/*-----------------------------------------------------------------------*/ -#if _FS_MINIMIZE <= 1 -static -void get_fileinfo ( /* No return code */ - DIR *dj, /* Pointer to the directory object */ - FILINFO *fno /* Pointer to the file information to be filled */ -) -{ - int i; - BYTE c, nt, *dir; - char *p; - - - p = fno->fname; - if (dj->sect) { - dir = dj->dir; - nt = dir[DIR_NTres]; /* NT flag */ - for (i = 0; i < 8; i++) { /* Copy name body */ - c = dir[i]; - if (c == ' ') break; - if (c == 0x05) c = 0xE5; - if (_USE_LFN && (nt & NS_BODY) && IsUpper(c)) c += 0x20; - *p++ = c; - } - if (dir[8] != ' ') { /* Copy name extension */ - *p++ = '.'; - for (i = 8; i < 11; i++) { - c = dir[i]; - if (c == ' ') break; - if (_USE_LFN && (nt & NS_EXT) && IsUpper(c)) c += 0x20; - *p++ = c; - } - } - fno->fattrib = dir[DIR_Attr]; /* Attribute */ - fno->fsize = LD_DWORD(dir+DIR_FileSize); /* Size */ - fno->fdate = LD_WORD(dir+DIR_WrtDate); /* Date */ - fno->ftime = LD_WORD(dir+DIR_WrtTime); /* Time */ - } - *p = 0; - -#if _USE_LFN - if (fno->lfname) { - XCHAR *tp = fno->lfname; - WCHAR w, *lfn; - - i = 0; - if (dj->sect && dj->lfn_idx != 0xFFFF) {/* Get LFN if available */ - lfn = dj->lfn; - while ((w = *lfn++) != 0) { /* Get an LFN char */ -#if !_LFN_UNICODE - w = ff_convert(w, 0); /* Unicode -> OEM conversion */ - if (!w) { i = 0; break; } /* Could not convert, no LFN */ - if (_DF1S && w >= 0x100) /* Put 1st byte if it is a DBC */ - tp[i++] = (XCHAR)(w >> 8); -#endif - if (i >= fno->lfsize - 1) { i = 0; break; } /* Buffer overrun, no LFN */ - tp[i++] = (XCHAR)w; - } - } - tp[i] = 0; /* Terminator */ - } -#endif -} -#endif /* _FS_MINIMIZE <= 1 */ - - - - -/*-----------------------------------------------------------------------*/ -/* Follow a file path */ -/*-----------------------------------------------------------------------*/ - -static -FRESULT follow_path ( /* FR_OK(0): successful, !=0: error code */ - DIR *dj, /* Directory object to return last directory and found object */ - const XCHAR *path /* Full-path string to find a file or directory */ -) -{ - FRESULT res; - BYTE *dir, last; - - - while (!_USE_LFN && *path == ' ') path++; /* Skip leading spaces */ -#if _FS_RPATH - if (*path == '/' || *path == '\\') { /* There is a heading separator */ - path++; dj->sclust = 0; /* Strip it and start from the root dir */ - } else { /* No heading saparator */ - dj->sclust = dj->fs->cdir; /* Start from the current dir */ - } -#else - if (*path == '/' || *path == '\\') /* Strip heading separator if exist */ - path++; - dj->sclust = 0; /* Start from the root dir */ -#endif - - if ((UINT)*path < ' ') { /* Null path means the start directory itself */ - res = dir_seek(dj, 0); - dj->dir = NULL; - - } else { /* Follow path */ - for (;;) { - res = create_name(dj, &path); /* Get a segment */ - if (res != FR_OK) break; - res = dir_find(dj); /* Find it */ - last = *(dj->fn+NS) & NS_LAST; - if (res != FR_OK) { /* Could not find the object */ - if (res == FR_NO_FILE && !last) - res = FR_NO_PATH; - break; - } - if (last) break; /* Last segment match. Function completed. */ - dir = dj->dir; /* There is next segment. Follow the sub directory */ - if (!(dir[DIR_Attr] & AM_DIR)) { /* Cannot follow because it is a file */ - res = FR_NO_PATH; break; - } - dj->sclust = ((DWORD)LD_WORD(dir+DIR_FstClusHI) << 16) | LD_WORD(dir+DIR_FstClusLO); - } - } - - return res; -} - - - - -/*-----------------------------------------------------------------------*/ -/* Load boot record and check if it is an FAT boot record */ -/*-----------------------------------------------------------------------*/ - -static -BYTE check_fs ( /* 0:The FAT boot record, 1:Valid boot record but not an FAT, 2:Not a boot record, 3:Error */ - FATFS *fs, /* File system object */ - DWORD sect /* Sector# (lba) to check if it is an FAT boot record or not */ -) -{ - if (disk_read(fs->drive, fs->win, sect, 1) != RES_OK) /* Load boot record */ - return 3; - if (LD_WORD(&fs->win[BS_55AA]) != 0xAA55) /* Check record signature (always placed at offset 510 even if the sector size is >512) */ - return 2; - - if ((LD_DWORD(&fs->win[BS_FilSysType]) & 0xFFFFFF) == 0x544146) /* Check "FAT" string */ - return 0; - if ((LD_DWORD(&fs->win[BS_FilSysType32]) & 0xFFFFFF) == 0x544146) - return 0; - - return 1; -} - - - - -/*-----------------------------------------------------------------------*/ -/* Make sure that the file system is valid */ -/*-----------------------------------------------------------------------*/ - - -FRESULT chk_mounted ( /* FR_OK(0): successful, !=0: any error occured */ - const XCHAR **path, /* Pointer to pointer to the path name (drive number) */ - FATFS **rfs, /* Pointer to pointer to the found file system object */ - BYTE chk_wp /* !=0: Check media write protection for write access */ -) -{ - BYTE fmt, *tbl; - UINT vol; - DSTATUS stat; - DWORD bsect, fsize, tsect, mclst; - const XCHAR *p = *path; - FATFS *fs; - - /* Get logical drive number from the path name */ - vol = p[0] - '0'; /* Is there a drive number? */ - if (vol <= 9 && p[1] == ':') { /* Found a drive number, get and strip it */ - p += 2; *path = p; /* Return pointer to the path name */ - } else { /* No drive number is given */ -#if _FS_RPATH - vol = Drive; /* Use current drive */ -#else - vol = 0; /* Use drive 0 */ -#endif - } - - /* Check if the logical drive is valid or not */ - if (vol >= _DRIVES) /* Is the drive number valid? */ - return FR_INVALID_DRIVE; - *rfs = fs = FatFs[vol]; /* Returen pointer to the corresponding file system object */ - if (!fs) return FR_NOT_ENABLED; /* Is the file system object available? */ - - ENTER_FF(fs); /* Lock file system */ - - if (fs->fs_type) { /* If the logical drive has been mounted */ - stat = disk_status(fs->drive); - if (!(stat & STA_NOINIT)) { /* and the physical drive is kept initialized (has not been changed), */ -#if !_FS_READONLY - if (chk_wp && (stat & STA_PROTECT)) /* Check write protection if needed */ - return FR_WRITE_PROTECTED; -#endif - return FR_OK; /* The file system object is valid */ - } - } - - /* The logical drive must be mounted. Following code attempts to mount the volume */ - - fs->fs_type = 0; /* Clear the file system object */ - fs->drive = (BYTE)LD2PD(vol); /* Bind the logical drive and a physical drive */ - stat = disk_initialize(fs->drive); /* Initialize low level disk I/O layer */ - if (stat & STA_NOINIT) /* Check if the drive is ready */ - return FR_NOT_READY; -#if _MAX_SS != 512 /* Get disk sector size if needed */ - if (disk_ioctl(fs->drive, GET_SECTOR_SIZE, &SS(fs)) != RES_OK || SS(fs) > _MAX_SS) - return FR_NO_FILESYSTEM; -#endif -#if !_FS_READONLY - if (chk_wp && (stat & STA_PROTECT)) /* Check disk write protection if needed */ - return FR_WRITE_PROTECTED; -#endif - /* Search FAT partition on the drive */ - fmt = check_fs(fs, bsect = 0); /* Check sector 0 as an SFD format */ - if (fmt == 1) { /* Not an FAT boot record, it may be patitioned */ - /* Check a partition listed in top of the partition table */ - tbl = &fs->win[MBR_Table + LD2PT(vol) * 16]; /* Partition table */ - if (tbl[4]) { /* Is the partition existing? */ - bsect = LD_DWORD(&tbl[8]); /* Partition offset in LBA */ - fmt = check_fs(fs, bsect); /* Check the partition */ - } - } - if (fmt == 3) return FR_DISK_ERR; - if (fmt || LD_WORD(fs->win+BPB_BytsPerSec) != SS(fs)) /* No valid FAT patition is found */ - return FR_NO_FILESYSTEM; - - /* Initialize the file system object */ - fsize = LD_WORD(fs->win+BPB_FATSz16); /* Number of sectors per FAT */ - if (!fsize) fsize = LD_DWORD(fs->win+BPB_FATSz32); - fs->sects_fat = fsize; - fs->n_fats = fs->win[BPB_NumFATs]; /* Number of FAT copies */ - fsize *= fs->n_fats; /* (Number of sectors in FAT area) */ - fs->fatbase = bsect + LD_WORD(fs->win+BPB_RsvdSecCnt); /* FAT start sector (lba) */ - fs->csize = fs->win[BPB_SecPerClus]; /* Number of sectors per cluster */ - fs->n_rootdir = LD_WORD(fs->win+BPB_RootEntCnt); /* Nmuber of root directory entries */ - tsect = LD_WORD(fs->win+BPB_TotSec16); /* Number of sectors on the volume */ - if (!tsect) tsect = LD_DWORD(fs->win+BPB_TotSec32); - fs->max_clust = mclst = (tsect /* Last cluster# + 1 (Number of clusters + 2) */ - - LD_WORD(fs->win+BPB_RsvdSecCnt) - fsize - fs->n_rootdir / (SS(fs)/32) - ) / fs->csize + 2; - - fmt = FS_FAT12; /* Determine the FAT sub type */ - if (mclst >= 0xFF7) fmt = FS_FAT16; /* Number of clusters >= 0xFF5 */ - if (mclst >= 0xFFF7) fmt = FS_FAT32; /* Number of clusters >= 0xFFF5 */ - - if (fmt == FS_FAT32) - fs->dirbase = LD_DWORD(fs->win+BPB_RootClus); /* Root directory start cluster */ - else - fs->dirbase = fs->fatbase + fsize; /* Root directory start sector (lba) */ - fs->database = fs->fatbase + fsize + fs->n_rootdir / (SS(fs)/32); /* Data start sector (lba) */ - -#if !_FS_READONLY - /* Initialize allocation information */ - fs->free_clust = 0xFFFFFFFF; - fs->wflag = 0; - /* Get fsinfo if needed */ - if (fmt == FS_FAT32) { - fs->fsi_flag = 0; - fs->fsi_sector = bsect + LD_WORD(fs->win+BPB_FSInfo); - if (disk_read(fs->drive, fs->win, fs->fsi_sector, 1) == RES_OK && - LD_WORD(fs->win+BS_55AA) == 0xAA55 && - LD_DWORD(fs->win+FSI_LeadSig) == 0x41615252 && - LD_DWORD(fs->win+FSI_StrucSig) == 0x61417272) { - fs->last_clust = LD_DWORD(fs->win+FSI_Nxt_Free); - fs->free_clust = LD_DWORD(fs->win+FSI_Free_Count); - } - } -#endif - fs->fs_type = fmt; /* FAT sub-type */ - fs->winsect = 0; /* Invalidate sector cache */ -#if _FS_RPATH - fs->cdir = 0; /* Current directory (root dir) */ -#endif - fs->id = ++Fsid; /* File system mount ID */ - - return FR_OK; -} - - - - -/*-----------------------------------------------------------------------*/ -/* Check if the file/dir object is valid or not */ -/*-----------------------------------------------------------------------*/ - -static -FRESULT validate ( /* FR_OK(0): The object is valid, !=0: Invalid */ - FATFS *fs, /* Pointer to the file system object */ - WORD id /* Member id of the target object to be checked */ -) -{ - if (!fs || !fs->fs_type || fs->id != id) - return FR_INVALID_OBJECT; - - ENTER_FF(fs); /* Lock file system */ - - if (disk_status(fs->drive) & STA_NOINIT) - return FR_NOT_READY; - - return FR_OK; -} - - - - -/*-------------------------------------------------------------------------- - - Public Functions - ---------------------------------------------------------------------------*/ - - - -/*-----------------------------------------------------------------------*/ -/* Mount/Unmount a Locical Drive */ -/*-----------------------------------------------------------------------*/ - -FRESULT f_mount ( - BYTE vol, /* Logical drive number to be mounted/unmounted */ - FATFS *fs /* Pointer to new file system object (NULL for unmount)*/ -) -{ - FATFS *rfs; - - - if (vol >= _DRIVES) /* Check if the drive number is valid */ - return FR_INVALID_DRIVE; - rfs = FatFs[vol]; /* Get current fs object */ - - if (rfs) { -#if _FS_REENTRANT /* Discard sync object of the current volume */ - if (!ff_del_syncobj(rfs->sobj)) return FR_INT_ERR; -#endif - rfs->fs_type = 0; /* Clear old fs object */ - } - - if (fs) { - fs->fs_type = 0; /* Clear new fs object */ -#if _FS_REENTRANT /* Create sync object for the new volume */ - if (!ff_cre_syncobj(vol, &fs->sobj)) return FR_INT_ERR; -#endif - } - FatFs[vol] = fs; /* Register new fs object */ - - return FR_OK; -} - - - - -/*-----------------------------------------------------------------------*/ -/* Open or Create a File */ -/*-----------------------------------------------------------------------*/ - -FRESULT f_open ( - FIL *fp, /* Pointer to the blank file object */ - const XCHAR *path, /* Pointer to the file name */ - BYTE mode /* Access mode and file open mode flags */ -) -{ - FRESULT res; - DIR dj; - NAMEBUF(sfn, lfn); - BYTE *dir; - - - fp->fs = NULL; /* Clear file object */ -#if !_FS_READONLY - mode &= (FA_READ | FA_WRITE | FA_CREATE_ALWAYS | FA_OPEN_ALWAYS | FA_CREATE_NEW); - res = chk_mounted(&path, &dj.fs, (BYTE)(mode & (FA_WRITE | FA_CREATE_ALWAYS | FA_OPEN_ALWAYS | FA_CREATE_NEW))); -#else - mode &= FA_READ; - res = chk_mounted(&path, &dj.fs, 0); -#endif - if (res != FR_OK) LEAVE_FF(dj.fs, res); - INITBUF(dj, sfn, lfn); - res = follow_path(&dj, path); /* Follow the file path */ - -#if !_FS_READONLY - /* Create or Open a file */ - if (mode & (FA_CREATE_ALWAYS | FA_OPEN_ALWAYS | FA_CREATE_NEW)) { - DWORD ps, cl; - - if (res != FR_OK) { /* No file, create new */ - if (res == FR_NO_FILE) /* There is no file to open, create a new entry */ - res = dir_register(&dj); - if (res != FR_OK) LEAVE_FF(dj.fs, res); - mode |= FA_CREATE_ALWAYS; - dir = dj.dir; /* Created entry (SFN entry) */ - } - else { /* Any object is already existing */ - if (mode & FA_CREATE_NEW) /* Cannot create new */ - LEAVE_FF(dj.fs, FR_EXIST); - dir = dj.dir; - if (!dir || (dir[DIR_Attr] & (AM_RDO | AM_DIR))) /* Cannot overwrite it (R/O or DIR) */ - LEAVE_FF(dj.fs, FR_DENIED); - if (mode & FA_CREATE_ALWAYS) { /* Resize it to zero on over write mode */ - cl = ((DWORD)LD_WORD(dir+DIR_FstClusHI) << 16) | LD_WORD(dir+DIR_FstClusLO); /* Get start cluster */ - ST_WORD(dir+DIR_FstClusHI, 0); /* cluster = 0 */ - ST_WORD(dir+DIR_FstClusLO, 0); - ST_DWORD(dir+DIR_FileSize, 0); /* size = 0 */ - dj.fs->wflag = 1; - ps = dj.fs->winsect; /* Remove the cluster chain */ - if (cl) { - res = remove_chain(dj.fs, cl); - if (res) LEAVE_FF(dj.fs, res); - dj.fs->last_clust = cl - 1; /* Reuse the cluster hole */ - } - res = move_window(dj.fs, ps); - if (res != FR_OK) LEAVE_FF(dj.fs, res); - } - } - if (mode & FA_CREATE_ALWAYS) { - dir[DIR_Attr] = 0; /* Reset attribute */ - ps = get_fattime(); - ST_DWORD(dir+DIR_CrtTime, ps); /* Created time */ - dj.fs->wflag = 1; - mode |= FA__WRITTEN; /* Set file changed flag */ - } - } - /* Open an existing file */ - else { -#endif /* !_FS_READONLY */ - if (res != FR_OK) LEAVE_FF(dj.fs, res); /* Follow failed */ - dir = dj.dir; - if (!dir || (dir[DIR_Attr] & AM_DIR)) /* It is a directory */ - LEAVE_FF(dj.fs, FR_NO_FILE); -#if !_FS_READONLY - if ((mode & FA_WRITE) && (dir[DIR_Attr] & AM_RDO)) /* R/O violation */ - LEAVE_FF(dj.fs, FR_DENIED); - } - fp->dir_sect = dj.fs->winsect; /* Pointer to the directory entry */ - fp->dir_ptr = dj.dir; -#endif - fp->flag = mode; /* File access mode */ - fp->org_clust = /* File start cluster */ - ((DWORD)LD_WORD(dir+DIR_FstClusHI) << 16) | LD_WORD(dir+DIR_FstClusLO); - fp->fsize = LD_DWORD(dir+DIR_FileSize); /* File size */ - fp->fptr = 0; fp->csect = 255; /* File pointer */ - fp->dsect = 0; - fp->fs = dj.fs; fp->id = dj.fs->id; /* Owner file system object of the file */ - - LEAVE_FF(dj.fs, FR_OK); -} - - - - -/*-----------------------------------------------------------------------*/ -/* Read File */ -/*-----------------------------------------------------------------------*/ - -FRESULT f_read ( - FIL *fp, /* Pointer to the file object */ - void *buff, /* Pointer to data buffer */ - UINT btr, /* Number of bytes to read */ - UINT *br /* Pointer to number of bytes read */ -) -{ - FRESULT res; - DWORD clst, sect, remain; - UINT rcnt, cc; - BYTE *rbuff = buff; - - - *br = 0; /* Initialize bytes read */ - - res = validate(fp->fs, fp->id); /* Check validity of the object */ - if (res != FR_OK) LEAVE_FF(fp->fs, res); - if (fp->flag & FA__ERROR) /* Check abort flag */ - LEAVE_FF(fp->fs, FR_INT_ERR); - if (!(fp->flag & FA_READ)) /* Check access mode */ - LEAVE_FF(fp->fs, FR_DENIED); - remain = fp->fsize - fp->fptr; - if (btr > remain) btr = (UINT)remain; /* Truncate btr by remaining bytes */ - - for ( ; btr; /* Repeat until all data transferred */ - rbuff += rcnt, fp->fptr += rcnt, *br += rcnt, btr -= rcnt) { - if ((fp->fptr % SS(fp->fs)) == 0) { /* On the sector boundary? */ - if (fp->csect >= fp->fs->csize) { /* On the cluster boundary? */ - clst = (fp->fptr == 0) ? /* On the top of the file? */ - fp->org_clust : get_fat(fp->fs, fp->curr_clust); - if (clst <= 1) ABORT(fp->fs, FR_INT_ERR); - if (clst == 0xFFFFFFFF) ABORT(fp->fs, FR_DISK_ERR); - fp->curr_clust = clst; /* Update current cluster */ - fp->csect = 0; /* Reset sector offset in the cluster */ - } - sect = clust2sect(fp->fs, fp->curr_clust); /* Get current sector */ - if (!sect) ABORT(fp->fs, FR_INT_ERR); - sect += fp->csect; - cc = btr / SS(fp->fs); /* When remaining bytes >= sector size, */ - if (cc) { /* Read maximum contiguous sectors directly */ - if (fp->csect + cc > fp->fs->csize) /* Clip at cluster boundary */ - cc = fp->fs->csize - fp->csect; - if (disk_read(fp->fs->drive, rbuff, sect, (BYTE)cc) != RES_OK) - ABORT(fp->fs, FR_DISK_ERR); -#if !_FS_READONLY && _FS_MINIMIZE <= 2 -#if _FS_TINY - if (fp->fs->wflag && fp->fs->winsect - sect < cc) /* Replace one of the read sectors with cached data if it contains a dirty sector */ - mem_cpy(rbuff + ((fp->fs->winsect - sect) * SS(fp->fs)), fp->fs->win, SS(fp->fs)); -#else - if ((fp->flag & FA__DIRTY) && fp->dsect - sect < cc) /* Replace one of the read sectors with cached data if it contains a dirty sector */ - mem_cpy(rbuff + ((fp->dsect - sect) * SS(fp->fs)), fp->buf, SS(fp->fs)); -#endif -#endif - fp->csect += (BYTE)cc; /* Next sector address in the cluster */ - rcnt = SS(fp->fs) * cc; /* Number of bytes transferred */ - continue; - } -#if !_FS_TINY -#if !_FS_READONLY - if (fp->flag & FA__DIRTY) { /* Write sector I/O buffer if needed */ - if (disk_write(fp->fs->drive, fp->buf, fp->dsect, 1) != RES_OK) - ABORT(fp->fs, FR_DISK_ERR); - fp->flag &= ~FA__DIRTY; - } -#endif - if (fp->dsect != sect) { /* Fill sector buffer with file data */ - if (disk_read(fp->fs->drive, fp->buf, sect, 1) != RES_OK) - ABORT(fp->fs, FR_DISK_ERR); - } -#endif - fp->dsect = sect; - fp->csect++; /* Next sector address in the cluster */ - } - rcnt = SS(fp->fs) - (fp->fptr % SS(fp->fs)); /* Get partial sector data from sector buffer */ - if (rcnt > btr) rcnt = btr; -#if _FS_TINY - if (move_window(fp->fs, fp->dsect)) /* Move sector window */ - ABORT(fp->fs, FR_DISK_ERR); - mem_cpy(rbuff, &fp->fs->win[fp->fptr % SS(fp->fs)], rcnt); /* Pick partial sector */ -#else - mem_cpy(rbuff, &fp->buf[fp->fptr % SS(fp->fs)], rcnt); /* Pick partial sector */ -#endif - } - - LEAVE_FF(fp->fs, FR_OK); -} - - - - -#if !_FS_READONLY -/*-----------------------------------------------------------------------*/ -/* Write File */ -/*-----------------------------------------------------------------------*/ - -FRESULT f_write ( - FIL *fp, /* Pointer to the file object */ - const void *buff, /* Pointer to the data to be written */ - UINT btw, /* Number of bytes to write */ - UINT *bw /* Pointer to number of bytes written */ -) -{ - FRESULT res; - DWORD clst, sect; - UINT wcnt, cc; - const BYTE *wbuff = buff; - - - *bw = 0; /* Initialize bytes written */ - - res = validate(fp->fs, fp->id); /* Check validity of the object */ - if (res != FR_OK) LEAVE_FF(fp->fs, res); - if (fp->flag & FA__ERROR) /* Check abort flag */ - LEAVE_FF(fp->fs, FR_INT_ERR); - if (!(fp->flag & FA_WRITE)) /* Check access mode */ - LEAVE_FF(fp->fs, FR_DENIED); - if (fp->fsize + btw < fp->fsize) btw = 0; /* File size cannot reach 4GB */ - - for ( ; btw; /* Repeat until all data transferred */ - wbuff += wcnt, fp->fptr += wcnt, *bw += wcnt, btw -= wcnt) { - if ((fp->fptr % SS(fp->fs)) == 0) { /* On the sector boundary? */ - if (fp->csect >= fp->fs->csize) { /* On the cluster boundary? */ - if (fp->fptr == 0) { /* On the top of the file? */ - clst = fp->org_clust; /* Follow from the origin */ - if (clst == 0) /* When there is no cluster chain, */ - fp->org_clust = clst = create_chain(fp->fs, 0); /* Create a new cluster chain */ - } else { /* Middle or end of the file */ - clst = create_chain(fp->fs, fp->curr_clust); /* Follow or streach cluster chain */ - } - if (clst == 0) break; /* Could not allocate a new cluster (disk full) */ - if (clst == 1) ABORT(fp->fs, FR_INT_ERR); - if (clst == 0xFFFFFFFF) ABORT(fp->fs, FR_DISK_ERR); - fp->curr_clust = clst; /* Update current cluster */ - fp->csect = 0; /* Reset sector address in the cluster */ - } -#if _FS_TINY - if (fp->fs->winsect == fp->dsect && move_window(fp->fs, 0)) /* Write back data buffer prior to following direct transfer */ - ABORT(fp->fs, FR_DISK_ERR); -#else - if (fp->flag & FA__DIRTY) { /* Write back data buffer prior to following direct transfer */ - if (disk_write(fp->fs->drive, fp->buf, fp->dsect, 1) != RES_OK) - ABORT(fp->fs, FR_DISK_ERR); - fp->flag &= ~FA__DIRTY; - } -#endif - sect = clust2sect(fp->fs, fp->curr_clust); /* Get current sector */ - if (!sect) ABORT(fp->fs, FR_INT_ERR); - sect += fp->csect; - cc = btw / SS(fp->fs); /* When remaining bytes >= sector size, */ - if (cc) { /* Write maximum contiguous sectors directly */ - if (fp->csect + cc > fp->fs->csize) /* Clip at cluster boundary */ - cc = fp->fs->csize - fp->csect; - if (disk_write(fp->fs->drive, wbuff, sect, (BYTE)cc) != RES_OK) - ABORT(fp->fs, FR_DISK_ERR); -#if _FS_TINY - if (fp->fs->winsect - sect < cc) { /* Refill sector cache if it gets dirty by the direct write */ - mem_cpy(fp->fs->win, wbuff + ((fp->fs->winsect - sect) * SS(fp->fs)), SS(fp->fs)); - fp->fs->wflag = 0; - } -#else - if (fp->dsect - sect < cc) { /* Refill sector cache if it gets dirty by the direct write */ - mem_cpy(fp->buf, wbuff + ((fp->dsect - sect) * SS(fp->fs)), SS(fp->fs)); - fp->flag &= ~FA__DIRTY; - } -#endif - fp->csect += (BYTE)cc; /* Next sector address in the cluster */ - wcnt = SS(fp->fs) * cc; /* Number of bytes transferred */ - continue; - } -#if _FS_TINY - if (fp->fptr >= fp->fsize) { /* Avoid silly buffer filling at growing edge */ - if (move_window(fp->fs, 0)) ABORT(fp->fs, FR_DISK_ERR); - fp->fs->winsect = sect; - } -#else - if (fp->dsect != sect) { /* Fill sector buffer with file data */ - if (fp->fptr < fp->fsize && - disk_read(fp->fs->drive, fp->buf, sect, 1) != RES_OK) - ABORT(fp->fs, FR_DISK_ERR); - } -#endif - fp->dsect = sect; - fp->csect++; /* Next sector address in the cluster */ - } - wcnt = SS(fp->fs) - (fp->fptr % SS(fp->fs)); /* Put partial sector into file I/O buffer */ - if (wcnt > btw) wcnt = btw; -#if _FS_TINY - if (move_window(fp->fs, fp->dsect)) /* Move sector window */ - ABORT(fp->fs, FR_DISK_ERR); - mem_cpy(&fp->fs->win[fp->fptr % SS(fp->fs)], wbuff, wcnt); /* Fit partial sector */ - fp->fs->wflag = 1; -#else - mem_cpy(&fp->buf[fp->fptr % SS(fp->fs)], wbuff, wcnt); /* Fit partial sector */ - fp->flag |= FA__DIRTY; -#endif - } - - if (fp->fptr > fp->fsize) fp->fsize = fp->fptr; /* Update file size if needed */ - fp->flag |= FA__WRITTEN; /* Set file changed flag */ - - LEAVE_FF(fp->fs, FR_OK); -} - - - - -/*-----------------------------------------------------------------------*/ -/* Synchronize the File Object */ -/*-----------------------------------------------------------------------*/ - -FRESULT f_sync ( - FIL *fp /* Pointer to the file object */ -) -{ - FRESULT res; - DWORD tim; - BYTE *dir; - - - res = validate(fp->fs, fp->id); /* Check validity of the object */ - if (res == FR_OK) { - if (fp->flag & FA__WRITTEN) { /* Has the file been written? */ -#if !_FS_TINY /* Write-back dirty buffer */ - if (fp->flag & FA__DIRTY) { - if (disk_write(fp->fs->drive, fp->buf, fp->dsect, 1) != RES_OK) - LEAVE_FF(fp->fs, FR_DISK_ERR); - fp->flag &= ~FA__DIRTY; - } -#endif - /* Update the directory entry */ - res = move_window(fp->fs, fp->dir_sect); - if (res == FR_OK) { - dir = fp->dir_ptr; - dir[DIR_Attr] |= AM_ARC; /* Set archive bit */ - ST_DWORD(dir+DIR_FileSize, fp->fsize); /* Update file size */ - ST_WORD(dir+DIR_FstClusLO, fp->org_clust); /* Update start cluster */ - ST_WORD(dir+DIR_FstClusHI, fp->org_clust >> 16); - tim = get_fattime(); /* Updated time */ - ST_DWORD(dir+DIR_WrtTime, tim); - fp->flag &= ~FA__WRITTEN; - fp->fs->wflag = 1; - res = sync(fp->fs); - } - } - } - - LEAVE_FF(fp->fs, res); -} - -#endif /* !_FS_READONLY */ - - - - -/*-----------------------------------------------------------------------*/ -/* Close File */ -/*-----------------------------------------------------------------------*/ - -FRESULT f_close ( - FIL *fp /* Pointer to the file object to be closed */ -) -{ - FRESULT res; - - -#if _FS_READONLY - res = validate(fp->fs, fp->id); - if (res == FR_OK) fp->fs = NULL; - LEAVE_FF(fp->fs, res); -#else - res = f_sync(fp); - if (res == FR_OK) fp->fs = NULL; - return res; -#endif -} - - - - -/*-----------------------------------------------------------------------*/ -/* Change Current Drive/Directory */ -/*-----------------------------------------------------------------------*/ - -#if _FS_RPATH - -FRESULT f_chdrive ( - BYTE drv /* Drive number */ -) -{ - if (drv >= _DRIVES) return FR_INVALID_DRIVE; - - Drive = drv; - - return FR_OK; -} - - - - -FRESULT f_chdir ( - const XCHAR *path /* Pointer to the directory path */ -) -{ - FRESULT res; - DIR dj; - NAMEBUF(sfn, lfn); - BYTE *dir; - - - res = chk_mounted(&path, &dj.fs, 0); - if (res == FR_OK) { - INITBUF(dj, sfn, lfn); - res = follow_path(&dj, path); /* Follow the file path */ - if (res == FR_OK) { /* Follow completed */ - dir = dj.dir; /* Pointer to the entry */ - if (!dir) { - dj.fs->cdir = 0; /* No entry (root dir) */ - } else { - if (dir[DIR_Attr] & AM_DIR) /* Reached to the dir */ - dj.fs->cdir = ((DWORD)LD_WORD(dir+DIR_FstClusHI) << 16) | LD_WORD(dir+DIR_FstClusLO); - else - res = FR_NO_PATH; /* Could not reach the dir (it is a file) */ - } - } - if (res == FR_NO_FILE) res = FR_NO_PATH; - } - - LEAVE_FF(dj.fs, res); -} - -#endif - - - -#if _FS_MINIMIZE <= 2 -/*-----------------------------------------------------------------------*/ -/* Seek File R/W Pointer */ -/*-----------------------------------------------------------------------*/ - -FRESULT f_lseek ( - FIL *fp, /* Pointer to the file object */ - DWORD ofs /* File pointer from top of file */ -) -{ - FRESULT res; - DWORD clst, bcs, nsect, ifptr; - - - res = validate(fp->fs, fp->id); /* Check validity of the object */ - if (res != FR_OK) LEAVE_FF(fp->fs, res); - if (fp->flag & FA__ERROR) /* Check abort flag */ - LEAVE_FF(fp->fs, FR_INT_ERR); - if (ofs > fp->fsize /* In read-only mode, clip offset with the file size */ -#if !_FS_READONLY - && !(fp->flag & FA_WRITE) -#endif - ) ofs = fp->fsize; - - ifptr = fp->fptr; - fp->fptr = nsect = 0; fp->csect = 255; - if (ofs > 0) { - bcs = (DWORD)fp->fs->csize * SS(fp->fs); /* Cluster size (byte) */ - if (ifptr > 0 && - (ofs - 1) / bcs >= (ifptr - 1) / bcs) { /* When seek to same or following cluster, */ - fp->fptr = (ifptr - 1) & ~(bcs - 1); /* start from the current cluster */ - ofs -= fp->fptr; - clst = fp->curr_clust; - } else { /* When seek to back cluster, */ - clst = fp->org_clust; /* start from the first cluster */ -#if !_FS_READONLY - if (clst == 0) { /* If no cluster chain, create a new chain */ - clst = create_chain(fp->fs, 0); - if (clst == 1) ABORT(fp->fs, FR_INT_ERR); - if (clst == 0xFFFFFFFF) ABORT(fp->fs, FR_DISK_ERR); - fp->org_clust = clst; - } -#endif - fp->curr_clust = clst; - } - if (clst != 0) { - while (ofs > bcs) { /* Cluster following loop */ -#if !_FS_READONLY - if (fp->flag & FA_WRITE) { /* Check if in write mode or not */ - clst = create_chain(fp->fs, clst); /* Force streached if in write mode */ - if (clst == 0) { /* When disk gets full, clip file size */ - ofs = bcs; break; - } - } else -#endif - clst = get_fat(fp->fs, clst); /* Follow cluster chain if not in write mode */ - if (clst == 0xFFFFFFFF) ABORT(fp->fs, FR_DISK_ERR); - if (clst <= 1 || clst >= fp->fs->max_clust) ABORT(fp->fs, FR_INT_ERR); - fp->curr_clust = clst; - fp->fptr += bcs; - ofs -= bcs; - } - fp->fptr += ofs; - fp->csect = (BYTE)(ofs / SS(fp->fs)); /* Sector offset in the cluster */ - if (ofs % SS(fp->fs)) { - nsect = clust2sect(fp->fs, clst); /* Current sector */ - if (!nsect) ABORT(fp->fs, FR_INT_ERR); - nsect += fp->csect; - fp->csect++; - } - } - } - if (fp->fptr % SS(fp->fs) && nsect != fp->dsect) { -#if !_FS_TINY -#if !_FS_READONLY - if (fp->flag & FA__DIRTY) { /* Write-back dirty buffer if needed */ - if (disk_write(fp->fs->drive, fp->buf, fp->dsect, 1) != RES_OK) - ABORT(fp->fs, FR_DISK_ERR); - fp->flag &= ~FA__DIRTY; - } -#endif - if (disk_read(fp->fs->drive, fp->buf, nsect, 1) != RES_OK) - ABORT(fp->fs, FR_DISK_ERR); -#endif - fp->dsect = nsect; - } -#if !_FS_READONLY - if (fp->fptr > fp->fsize) { /* Set changed flag if the file size is extended */ - fp->fsize = fp->fptr; - fp->flag |= FA__WRITTEN; - } -#endif - - LEAVE_FF(fp->fs, res); -} - - - - -#if _FS_MINIMIZE <= 1 -/*-----------------------------------------------------------------------*/ -/* Create a Directroy Object */ -/*-----------------------------------------------------------------------*/ - -FRESULT f_opendir ( - DIR *dj, /* Pointer to directory object to create */ - const XCHAR *path /* Pointer to the directory path */ -) -{ - FRESULT res; - NAMEBUF(sfn, lfn); - BYTE *dir; - - - res = chk_mounted(&path, &dj->fs, 0); - if (res == FR_OK) { - INITBUF((*dj), sfn, lfn); - res = follow_path(dj, path); /* Follow the path to the directory */ - if (res == FR_OK) { /* Follow completed */ - dir = dj->dir; - if (dir) { /* It is not the root dir */ - if (dir[DIR_Attr] & AM_DIR) { /* The object is a directory */ - dj->sclust = ((DWORD)LD_WORD(dir+DIR_FstClusHI) << 16) | LD_WORD(dir+DIR_FstClusLO); - } else { /* The object is not a directory */ - res = FR_NO_PATH; - } - } - if (res == FR_OK) { - dj->id = dj->fs->id; - res = dir_seek(dj, 0); /* Rewind dir */ - } - } - if (res == FR_NO_FILE) res = FR_NO_PATH; - } - - LEAVE_FF(dj->fs, res); -} - - - - -/*-----------------------------------------------------------------------*/ -/* Read Directory Entry in Sequense */ -/*-----------------------------------------------------------------------*/ - -FRESULT f_readdir ( - DIR *dj, /* Pointer to the open directory object */ - FILINFO *fno /* Pointer to file information to return */ -) -{ - FRESULT res; - NAMEBUF(sfn, lfn); - - - res = validate(dj->fs, dj->id); /* Check validity of the object */ - if (res == FR_OK) { - INITBUF((*dj), sfn, lfn); - if (!fno) { - res = dir_seek(dj, 0); - } else { - res = dir_read(dj); - if (res == FR_NO_FILE) { - dj->sect = 0; - res = FR_OK; - } - if (res == FR_OK) { /* A valid entry is found */ - get_fileinfo(dj, fno); /* Get the object information */ - res = dir_next(dj, FALSE); /* Increment index for next */ - if (res == FR_NO_FILE) { - dj->sect = 0; - res = FR_OK; - } - } - } - } - - LEAVE_FF(dj->fs, res); -} - - - -#if _FS_MINIMIZE == 0 -/*-----------------------------------------------------------------------*/ -/* Get File Status */ -/*-----------------------------------------------------------------------*/ - -FRESULT f_stat ( - const XCHAR *path, /* Pointer to the file path */ - FILINFO *fno /* Pointer to file information to return */ -) -{ - FRESULT res; - DIR dj; - NAMEBUF(sfn, lfn); - - - res = chk_mounted(&path, &dj.fs, 0); - if (res == FR_OK) { - INITBUF(dj, sfn, lfn); - res = follow_path(&dj, path); /* Follow the file path */ - if (res == FR_OK) { /* Follwo completed */ - if (dj.dir) /* Found an object */ - get_fileinfo(&dj, fno); - else /* It is root dir */ - res = FR_INVALID_NAME; - } - } - - LEAVE_FF(dj.fs, res); -} - - - -#if !_FS_READONLY -/*-----------------------------------------------------------------------*/ -/* Get Number of Free Clusters */ -/*-----------------------------------------------------------------------*/ - -FRESULT f_getfree ( - const XCHAR *path, /* Pointer to the logical drive number (root dir) */ - DWORD *nclst, /* Pointer to the variable to return number of free clusters */ - FATFS **fatfs /* Pointer to pointer to corresponding file system object to return */ -) -{ - FRESULT res; - DWORD n, clst, sect, stat; - UINT i; - BYTE fat, *p; - - - /* Get drive number */ - res = chk_mounted(&path, fatfs, 0); - if (res != FR_OK) LEAVE_FF(*fatfs, res); - - /* If number of free cluster is valid, return it without cluster scan. */ - if ((*fatfs)->free_clust <= (*fatfs)->max_clust - 2) { - *nclst = (*fatfs)->free_clust; - LEAVE_FF(*fatfs, FR_OK); - } - - /* Get number of free clusters */ - fat = (*fatfs)->fs_type; - n = 0; - if (fat == FS_FAT12) { - clst = 2; - do { - stat = get_fat(*fatfs, clst); - if (stat == 0xFFFFFFFF) LEAVE_FF(*fatfs, FR_DISK_ERR); - if (stat == 1) LEAVE_FF(*fatfs, FR_INT_ERR); - if (stat == 0) n++; - } while (++clst < (*fatfs)->max_clust); - } else { - clst = (*fatfs)->max_clust; - sect = (*fatfs)->fatbase; - i = 0; p = 0; - do { - if (!i) { - res = move_window(*fatfs, sect++); - if (res != FR_OK) - LEAVE_FF(*fatfs, res); - p = (*fatfs)->win; - i = SS(*fatfs); - } - if (fat == FS_FAT16) { - if (LD_WORD(p) == 0) n++; - p += 2; i -= 2; - } else { - if ((LD_DWORD(p) & 0x0FFFFFFF) == 0) n++; - p += 4; i -= 4; - } - } while (--clst); - } - (*fatfs)->free_clust = n; - if (fat == FS_FAT32) (*fatfs)->fsi_flag = 1; - *nclst = n; - - LEAVE_FF(*fatfs, FR_OK); -} - - - - -/*-----------------------------------------------------------------------*/ -/* Truncate File */ -/*-----------------------------------------------------------------------*/ - -FRESULT f_truncate ( - FIL *fp /* Pointer to the file object */ -) -{ - FRESULT res; - DWORD ncl; - - - res = validate(fp->fs, fp->id); /* Check validity of the object */ - if (res != FR_OK) LEAVE_FF(fp->fs, res); - if (fp->flag & FA__ERROR) /* Check abort flag */ - LEAVE_FF(fp->fs, FR_INT_ERR); - if (!(fp->flag & FA_WRITE)) /* Check access mode */ - LEAVE_FF(fp->fs, FR_DENIED); - - if (fp->fsize > fp->fptr) { - fp->fsize = fp->fptr; /* Set file size to current R/W point */ - fp->flag |= FA__WRITTEN; - if (fp->fptr == 0) { /* When set file size to zero, remove entire cluster chain */ - res = remove_chain(fp->fs, fp->org_clust); - fp->org_clust = 0; - } else { /* When truncate a part of the file, remove remaining clusters */ - ncl = get_fat(fp->fs, fp->curr_clust); - res = FR_OK; - if (ncl == 0xFFFFFFFF) res = FR_DISK_ERR; - if (ncl == 1) res = FR_INT_ERR; - if (res == FR_OK && ncl < fp->fs->max_clust) { - res = put_fat(fp->fs, fp->curr_clust, 0x0FFFFFFF); - if (res == FR_OK) res = remove_chain(fp->fs, ncl); - } - } - } - if (res != FR_OK) fp->flag |= FA__ERROR; - - LEAVE_FF(fp->fs, res); -} - - - - -/*-----------------------------------------------------------------------*/ -/* Delete a File or Directory */ -/*-----------------------------------------------------------------------*/ - -FRESULT f_unlink ( - const XCHAR *path /* Pointer to the file or directory path */ -) -{ - FRESULT res; - DIR dj, sdj; - NAMEBUF(sfn, lfn); - BYTE *dir; - DWORD dclst; - - - res = chk_mounted(&path, &dj.fs, 1); - if (res != FR_OK) LEAVE_FF(dj.fs, res); - - INITBUF(dj, sfn, lfn); - res = follow_path(&dj, path); /* Follow the file path */ - if (_FS_RPATH && res == FR_OK && (dj.fn[NS] & NS_DOT)) - res = FR_INVALID_NAME; - if (res != FR_OK) LEAVE_FF(dj.fs, res); /* Follow failed */ - - dir = dj.dir; - if (!dir) /* Is it the root directory? */ - LEAVE_FF(dj.fs, FR_INVALID_NAME); - if (dir[DIR_Attr] & AM_RDO) /* Is it a R/O object? */ - LEAVE_FF(dj.fs, FR_DENIED); - dclst = ((DWORD)LD_WORD(dir+DIR_FstClusHI) << 16) | LD_WORD(dir+DIR_FstClusLO); - - if (dir[DIR_Attr] & AM_DIR) { /* It is a sub-directory */ - if (dclst < 2) LEAVE_FF(dj.fs, FR_INT_ERR); - mem_cpy(&sdj, &dj, sizeof(DIR)); /* Check if the sub-dir is empty or not */ - sdj.sclust = dclst; - res = dir_seek(&sdj, 2); - if (res != FR_OK) LEAVE_FF(dj.fs, res); - res = dir_read(&sdj); - if (res == FR_OK) res = FR_DENIED; /* Not empty sub-dir */ - if (res != FR_NO_FILE) LEAVE_FF(dj.fs, res); - } - - res = dir_remove(&dj); /* Remove directory entry */ - if (res == FR_OK) { - if (dclst) - res = remove_chain(dj.fs, dclst); /* Remove the cluster chain */ - if (res == FR_OK) res = sync(dj.fs); - } - - LEAVE_FF(dj.fs, res); -} - - - - -/*-----------------------------------------------------------------------*/ -/* Create a Directory */ -/*-----------------------------------------------------------------------*/ - -FRESULT f_mkdir ( - const XCHAR *path /* Pointer to the directory path */ -) -{ - FRESULT res; - DIR dj; - NAMEBUF(sfn, lfn); - BYTE *dir, n; - DWORD dsect, dclst, pclst, tim; - - - res = chk_mounted(&path, &dj.fs, 1); - if (res != FR_OK) LEAVE_FF(dj.fs, res); - - INITBUF(dj, sfn, lfn); - res = follow_path(&dj, path); /* Follow the file path */ - if (res == FR_OK) res = FR_EXIST; /* Any file or directory is already existing */ - if (_FS_RPATH && res == FR_NO_FILE && (dj.fn[NS] & NS_DOT)) - res = FR_INVALID_NAME; - if (res != FR_NO_FILE) /* Any error occured */ - LEAVE_FF(dj.fs, res); - - dclst = create_chain(dj.fs, 0); /* Allocate a new cluster for new directory table */ - res = FR_OK; - if (dclst == 0) res = FR_DENIED; - if (dclst == 1) res = FR_INT_ERR; - if (dclst == 0xFFFFFFFF) res = FR_DISK_ERR; - if (res == FR_OK) - res = move_window(dj.fs, 0); - if (res != FR_OK) LEAVE_FF(dj.fs, res); - dsect = clust2sect(dj.fs, dclst); - - dir = dj.fs->win; /* Initialize the new directory table */ - mem_set(dir, 0, SS(dj.fs)); - mem_set(dir+DIR_Name, ' ', 8+3); /* Create "." entry */ - dir[DIR_Name] = '.'; - dir[DIR_Attr] = AM_DIR; - tim = get_fattime(); - ST_DWORD(dir+DIR_WrtTime, tim); - ST_WORD(dir+DIR_FstClusLO, dclst); - ST_WORD(dir+DIR_FstClusHI, dclst >> 16); - mem_cpy(dir+32, dir, 32); /* Create ".." entry */ - dir[33] = '.'; - pclst = dj.sclust; - if (dj.fs->fs_type == FS_FAT32 && pclst == dj.fs->dirbase) - pclst = 0; - ST_WORD(dir+32+DIR_FstClusLO, pclst); - ST_WORD(dir+32+DIR_FstClusHI, pclst >> 16); - for (n = 0; n < dj.fs->csize; n++) { /* Write dot entries and clear left sectors */ - dj.fs->winsect = dsect++; - dj.fs->wflag = 1; - res = move_window(dj.fs, 0); - if (res) LEAVE_FF(dj.fs, res); - mem_set(dir, 0, SS(dj.fs)); - } - - res = dir_register(&dj); - if (res != FR_OK) { - remove_chain(dj.fs, dclst); - } else { - dir = dj.dir; - dir[DIR_Attr] = AM_DIR; /* Attribute */ - ST_DWORD(dir+DIR_WrtTime, tim); /* Crated time */ - ST_WORD(dir+DIR_FstClusLO, dclst); /* Table start cluster */ - ST_WORD(dir+DIR_FstClusHI, dclst >> 16); - dj.fs->wflag = 1; - res = sync(dj.fs); - } - - LEAVE_FF(dj.fs, res); -} - - - - -/*-----------------------------------------------------------------------*/ -/* Change File Attribute */ -/*-----------------------------------------------------------------------*/ - -FRESULT f_chmod ( - const XCHAR *path, /* Pointer to the file path */ - BYTE value, /* Attribute bits */ - BYTE mask /* Attribute mask to change */ -) -{ - FRESULT res; - DIR dj; - NAMEBUF(sfn, lfn); - BYTE *dir; - - - res = chk_mounted(&path, &dj.fs, 1); - if (res == FR_OK) { - INITBUF(dj, sfn, lfn); - res = follow_path(&dj, path); /* Follow the file path */ - if (_FS_RPATH && res == FR_OK && (dj.fn[NS] & NS_DOT)) - res = FR_INVALID_NAME; - if (res == FR_OK) { - dir = dj.dir; - if (!dir) { /* Is it a root directory? */ - res = FR_INVALID_NAME; - } else { /* File or sub directory */ - mask &= AM_RDO|AM_HID|AM_SYS|AM_ARC; /* Valid attribute mask */ - dir[DIR_Attr] = (value & mask) | (dir[DIR_Attr] & (BYTE)~mask); /* Apply attribute change */ - dj.fs->wflag = 1; - res = sync(dj.fs); - } - } - } - - LEAVE_FF(dj.fs, res); -} - - - - -/*-----------------------------------------------------------------------*/ -/* Change Timestamp */ -/*-----------------------------------------------------------------------*/ - -FRESULT f_utime ( - const XCHAR *path, /* Pointer to the file/directory name */ - const FILINFO *fno /* Pointer to the timestamp to be set */ -) -{ - FRESULT res; - DIR dj; - NAMEBUF(sfn, lfn); - BYTE *dir; - - - res = chk_mounted(&path, &dj.fs, 1); - if (res == FR_OK) { - INITBUF(dj, sfn, lfn); - res = follow_path(&dj, path); /* Follow the file path */ - if (_FS_RPATH && res == FR_OK && (dj.fn[NS] & NS_DOT)) - res = FR_INVALID_NAME; - if (res == FR_OK) { - dir = dj.dir; - if (!dir) { /* Root directory */ - res = FR_INVALID_NAME; - } else { /* File or sub-directory */ - ST_WORD(dir+DIR_WrtTime, fno->ftime); - ST_WORD(dir+DIR_WrtDate, fno->fdate); - dj.fs->wflag = 1; - res = sync(dj.fs); - } - } - } - - LEAVE_FF(dj.fs, res); -} - - - - -/*-----------------------------------------------------------------------*/ -/* Rename File/Directory */ -/*-----------------------------------------------------------------------*/ - -FRESULT f_rename ( - const XCHAR *path_old, /* Pointer to the old name */ - const XCHAR *path_new /* Pointer to the new name */ -) -{ - FRESULT res; - DIR dj_old, dj_new; - NAMEBUF(sfn, lfn); - BYTE buf[21], *dir; - DWORD dw; - - - INITBUF(dj_old, sfn, lfn); - res = chk_mounted(&path_old, &dj_old.fs, 1); - if (res == FR_OK) { - dj_new.fs = dj_old.fs; - res = follow_path(&dj_old, path_old); /* Check old object */ - if (_FS_RPATH && res == FR_OK && (dj_old.fn[NS] & NS_DOT)) - res = FR_INVALID_NAME; - } - if (res != FR_OK) LEAVE_FF(dj_old.fs, res); /* The old object is not found */ - - if (!dj_old.dir) LEAVE_FF(dj_old.fs, FR_NO_FILE); /* Is root dir? */ - mem_cpy(buf, dj_old.dir+DIR_Attr, 21); /* Save the object information */ - - mem_cpy(&dj_new, &dj_old, sizeof(DIR)); - res = follow_path(&dj_new, path_new); /* Check new object */ - if (res == FR_OK) res = FR_EXIST; /* The new object name is already existing */ - if (res == FR_NO_FILE) { /* Is it a valid path and no name collision? */ - res = dir_register(&dj_new); /* Register the new object */ - if (res == FR_OK) { - dir = dj_new.dir; /* Copy object information into new entry */ - mem_cpy(dir+13, buf+2, 19); - dir[DIR_Attr] = buf[0] | AM_ARC; - dj_old.fs->wflag = 1; - if (dir[DIR_Attr] & AM_DIR) { /* Update .. entry in the directory if needed */ - dw = clust2sect(dj_new.fs, (DWORD)LD_WORD(dir+DIR_FstClusHI) | LD_WORD(dir+DIR_FstClusLO)); - if (!dw) { - res = FR_INT_ERR; - } else { - res = move_window(dj_new.fs, dw); - dir = dj_new.fs->win+32; - if (res == FR_OK && dir[1] == '.') { - dw = (dj_new.fs->fs_type == FS_FAT32 && dj_new.sclust == dj_new.fs->dirbase) ? 0 : dj_new.sclust; - ST_WORD(dir+DIR_FstClusLO, dw); - ST_WORD(dir+DIR_FstClusHI, dw >> 16); - dj_new.fs->wflag = 1; - } - } - } - if (res == FR_OK) { - res = dir_remove(&dj_old); /* Remove old entry */ - if (res == FR_OK) - res = sync(dj_old.fs); - } - } - } - - LEAVE_FF(dj_old.fs, res); -} - -#endif /* !_FS_READONLY */ -#endif /* _FS_MINIMIZE == 0 */ -#endif /* _FS_MINIMIZE <= 1 */ -#endif /* _FS_MINIMIZE <= 2 */ - - - -/*-----------------------------------------------------------------------*/ -/* Forward data to the stream directly (Available on only _FS_TINY cfg) */ -/*-----------------------------------------------------------------------*/ -#if _USE_FORWARD && _FS_TINY - -FRESULT f_forward ( - FIL *fp, /* Pointer to the file object */ - UINT (*func)(const BYTE*,UINT), /* Pointer to the streaming function */ - UINT btr, /* Number of bytes to forward */ - UINT *bf /* Pointer to number of bytes forwarded */ -) -{ - FRESULT res; - DWORD remain, clst, sect; - UINT rcnt; - - - *bf = 0; - - res = validate(fp->fs, fp->id); /* Check validity of the object */ - if (res != FR_OK) LEAVE_FF(fp->fs, res); - if (fp->flag & FA__ERROR) /* Check error flag */ - LEAVE_FF(fp->fs, FR_INT_ERR); - if (!(fp->flag & FA_READ)) /* Check access mode */ - LEAVE_FF(fp->fs, FR_DENIED); - - remain = fp->fsize - fp->fptr; - if (btr > remain) btr = (UINT)remain; /* Truncate btr by remaining bytes */ - - for ( ; btr && (*func)(NULL, 0); /* Repeat until all data transferred or stream becomes busy */ - fp->fptr += rcnt, *bf += rcnt, btr -= rcnt) { - if ((fp->fptr % SS(fp->fs)) == 0) { /* On the sector boundary? */ - if (fp->csect >= fp->fs->csize) { /* On the cluster boundary? */ - clst = (fp->fptr == 0) ? /* On the top of the file? */ - fp->org_clust : get_fat(fp->fs, fp->curr_clust); - if (clst <= 1) ABORT(fp->fs, FR_INT_ERR); - if (clst == 0xFFFFFFFF) ABORT(fp->fs, FR_DISK_ERR); - fp->curr_clust = clst; /* Update current cluster */ - fp->csect = 0; /* Reset sector address in the cluster */ - } - fp->csect++; /* Next sector address in the cluster */ - } - sect = clust2sect(fp->fs, fp->curr_clust); /* Get current data sector */ - if (!sect) ABORT(fp->fs, FR_INT_ERR); - sect += fp->csect - 1; - if (move_window(fp->fs, sect)) /* Move sector window */ - ABORT(fp->fs, FR_DISK_ERR); - fp->dsect = sect; - rcnt = SS(fp->fs) - (WORD)(fp->fptr % SS(fp->fs)); /* Forward data from sector window */ - if (rcnt > btr) rcnt = btr; - rcnt = (*func)(&fp->fs->win[(WORD)fp->fptr % SS(fp->fs)], rcnt); - if (!rcnt) ABORT(fp->fs, FR_INT_ERR); - } - - LEAVE_FF(fp->fs, FR_OK); -} -#endif /* _USE_FORWARD */ - - - -#if _USE_MKFS && !_FS_READONLY -/*-----------------------------------------------------------------------*/ -/* Create File System on the Drive */ -/*-----------------------------------------------------------------------*/ -#define N_ROOTDIR 512 /* Multiple of 32 and <= 2048 */ -#define N_FATS 1 /* 1 or 2 */ -#define MAX_SECTOR 131072000UL /* Maximum partition size */ -#define MIN_SECTOR 2000UL /* Minimum partition size */ - - -FRESULT f_mkfs ( - BYTE drv, /* Logical drive number */ - BYTE partition, /* Partitioning rule 0:FDISK, 1:SFD */ - WORD allocsize /* Allocation unit size [bytes] */ -) -{ - static const DWORD sstbl[] = { 2048000, 1024000, 512000, 256000, 128000, 64000, 32000, 16000, 8000, 4000, 0 }; - static const WORD cstbl[] = { 32768, 16384, 8192, 4096, 2048, 16384, 8192, 4096, 2048, 1024, 512 }; - BYTE fmt, m, *tbl; - DWORD b_part, b_fat, b_dir, b_data; /* Area offset (LBA) */ - DWORD n_part, n_rsv, n_fat, n_dir; /* Area size */ - DWORD n_clst, d, n; - WORD as; - FATFS *fs; - DSTATUS stat; - - - /* Check validity of the parameters */ - if (drv >= _DRIVES) return FR_INVALID_DRIVE; - if (partition >= 2) return FR_MKFS_ABORTED; - - /* Check mounted drive and clear work area */ - fs = FatFs[drv]; - if (!fs) return FR_NOT_ENABLED; - fs->fs_type = 0; - drv = LD2PD(drv); - - /* Get disk statics */ - stat = disk_initialize(drv); - if (stat & STA_NOINIT) return FR_NOT_READY; - if (stat & STA_PROTECT) return FR_WRITE_PROTECTED; -#if _MAX_SS != 512 /* Get disk sector size */ - if (disk_ioctl(drv, GET_SECTOR_SIZE, &SS(fs)) != RES_OK - || SS(fs) > _MAX_SS) - return FR_MKFS_ABORTED; -#endif - if (disk_ioctl(drv, GET_SECTOR_COUNT, &n_part) != RES_OK || n_part < MIN_SECTOR) - return FR_MKFS_ABORTED; - if (n_part > MAX_SECTOR) n_part = MAX_SECTOR; - b_part = (!partition) ? 63 : 0; /* Boot sector */ - n_part -= b_part; - for (d = 512; d <= 32768U && d != allocsize; d <<= 1) ; /* Check validity of the allocation unit size */ - if (d != allocsize) allocsize = 0; - if (!allocsize) { /* Auto selection of cluster size */ - d = n_part; - for (as = SS(fs); as > 512U; as >>= 1) d >>= 1; - for (n = 0; d < sstbl[n]; n++) ; - allocsize = cstbl[n]; - } - if (allocsize < SS(fs)) allocsize = SS(fs); - - allocsize /= SS(fs); /* Number of sectors per cluster */ - - /* Pre-compute number of clusters and FAT type */ - n_clst = n_part / allocsize; - fmt = FS_FAT12; - if (n_clst >= 0xFF5) fmt = FS_FAT16; - if (n_clst >= 0xFFF5) fmt = FS_FAT32; - - /* Determine offset and size of FAT structure */ - switch (fmt) { - case FS_FAT12: - n_fat = ((n_clst * 3 + 1) / 2 + 3 + SS(fs) - 1) / SS(fs); - n_rsv = 1 + partition; - n_dir = N_ROOTDIR * 32 / SS(fs); - break; - case FS_FAT16: - n_fat = ((n_clst * 2) + 4 + SS(fs) - 1) / SS(fs); - n_rsv = 1 + partition; - n_dir = N_ROOTDIR * 32 / SS(fs); - break; - default: - n_fat = ((n_clst * 4) + 8 + SS(fs) - 1) / SS(fs); - n_rsv = 33 - partition; - n_dir = 0; - } - b_fat = b_part + n_rsv; /* FATs start sector */ - b_dir = b_fat + n_fat * N_FATS; /* Directory start sector */ - b_data = b_dir + n_dir; /* Data start sector */ - - /* Align data start sector to erase block boundary (for flash memory media) */ - if (disk_ioctl(drv, GET_BLOCK_SIZE, &n) != RES_OK) return FR_MKFS_ABORTED; - n = (b_data + n - 1) & ~(n - 1); - n_fat += (n - b_data) / N_FATS; - /* b_dir and b_data are no longer used below */ - - /* Determine number of cluster and final check of validity of the FAT type */ - n_clst = (n_part - n_rsv - n_fat * N_FATS - n_dir) / allocsize; - if ( (fmt == FS_FAT16 && n_clst < 0xFF5) - || (fmt == FS_FAT32 && n_clst < 0xFFF5)) - return FR_MKFS_ABORTED; - - /* Create partition table if needed */ - if (!partition) { - DWORD n_disk = b_part + n_part; - - mem_set(fs->win, 0, SS(fs)); - tbl = fs->win+MBR_Table; - ST_DWORD(tbl, 0x00010180); /* Partition start in CHS */ - if (n_disk < 63UL * 255 * 1024) { /* Partition end in CHS */ - n_disk = n_disk / 63 / 255; - tbl[7] = (BYTE)n_disk; - tbl[6] = (BYTE)((n_disk >> 2) | 63); - } else { - ST_WORD(&tbl[6], 0xFFFF); - } - tbl[5] = 254; - if (fmt != FS_FAT32) /* System ID */ - tbl[4] = (n_part < 0x10000) ? 0x04 : 0x06; - else - tbl[4] = 0x0c; - ST_DWORD(tbl+8, 63); /* Partition start in LBA */ - ST_DWORD(tbl+12, n_part); /* Partition size in LBA */ - ST_WORD(tbl+64, 0xAA55); /* Signature */ - if (disk_write(drv, fs->win, 0, 1) != RES_OK) - return FR_DISK_ERR; - partition = 0xF8; - } else { - partition = 0xF0; - } - - /* Create boot record */ - tbl = fs->win; /* Clear buffer */ - mem_set(tbl, 0, SS(fs)); - ST_DWORD(tbl+BS_jmpBoot, 0x90FEEB); /* Boot code (jmp $, nop) */ - ST_WORD(tbl+BPB_BytsPerSec, SS(fs)); /* Sector size */ - tbl[BPB_SecPerClus] = (BYTE)allocsize; /* Sectors per cluster */ - ST_WORD(tbl+BPB_RsvdSecCnt, n_rsv); /* Reserved sectors */ - tbl[BPB_NumFATs] = N_FATS; /* Number of FATs */ - ST_WORD(tbl+BPB_RootEntCnt, SS(fs) / 32 * n_dir); /* Number of rootdir entries */ - if (n_part < 0x10000) { /* Number of total sectors */ - ST_WORD(tbl+BPB_TotSec16, n_part); - } else { - ST_DWORD(tbl+BPB_TotSec32, n_part); - } - tbl[BPB_Media] = partition; /* Media descripter */ - ST_WORD(tbl+BPB_SecPerTrk, 63); /* Number of sectors per track */ - ST_WORD(tbl+BPB_NumHeads, 255); /* Number of heads */ - ST_DWORD(tbl+BPB_HiddSec, b_part); /* Hidden sectors */ - n = get_fattime(); /* Use current time as a VSN */ - if (fmt != FS_FAT32) { - ST_DWORD(tbl+BS_VolID, n); /* Volume serial number */ - ST_WORD(tbl+BPB_FATSz16, n_fat); /* Number of secters per FAT */ - tbl[BS_DrvNum] = 0x80; /* Drive number */ - tbl[BS_BootSig] = 0x29; /* Extended boot signature */ - mem_cpy(tbl+BS_VolLab, "NO NAME FAT ", 19); /* Volume lavel, FAT signature */ - } else { - ST_DWORD(tbl+BS_VolID32, n); /* Volume serial number */ - ST_DWORD(tbl+BPB_FATSz32, n_fat); /* Number of secters per FAT */ - ST_DWORD(tbl+BPB_RootClus, 2); /* Root directory cluster (2) */ - ST_WORD(tbl+BPB_FSInfo, 1); /* FSInfo record offset (bs+1) */ - ST_WORD(tbl+BPB_BkBootSec, 6); /* Backup boot record offset (bs+6) */ - tbl[BS_DrvNum32] = 0x80; /* Drive number */ - tbl[BS_BootSig32] = 0x29; /* Extended boot signature */ - mem_cpy(tbl+BS_VolLab32, "NO NAME FAT32 ", 19); /* Volume lavel, FAT signature */ - } - ST_WORD(tbl+BS_55AA, 0xAA55); /* Signature */ - if (SS(fs) > 512U) { - ST_WORD(tbl+SS(fs)-2, 0xAA55); - } - if (disk_write(drv, tbl, b_part+0, 1) != RES_OK) - return FR_DISK_ERR; - if (fmt == FS_FAT32) - disk_write(drv, tbl, b_part+6, 1); - - /* Initialize FAT area */ - for (m = 0; m < N_FATS; m++) { - mem_set(tbl, 0, SS(fs)); /* 1st sector of the FAT */ - if (fmt != FS_FAT32) { - n = (fmt == FS_FAT12) ? 0x00FFFF00 : 0xFFFFFF00; - n |= partition; - ST_DWORD(tbl, n); /* Reserve cluster #0-1 (FAT12/16) */ - } else { - ST_DWORD(tbl+0, 0xFFFFFFF8); /* Reserve cluster #0-1 (FAT32) */ - ST_DWORD(tbl+4, 0xFFFFFFFF); - ST_DWORD(tbl+8, 0x0FFFFFFF); /* Reserve cluster #2 for root dir */ - } - if (disk_write(drv, tbl, b_fat++, 1) != RES_OK) - return FR_DISK_ERR; - mem_set(tbl, 0, SS(fs)); /* Following FAT entries are filled by zero */ - for (n = 1; n < n_fat; n++) { - if (disk_write(drv, tbl, b_fat++, 1) != RES_OK) - return FR_DISK_ERR; - } - } - - /* Initialize Root directory */ - m = (BYTE)((fmt == FS_FAT32) ? allocsize : n_dir); - do { - if (disk_write(drv, tbl, b_fat++, 1) != RES_OK) - return FR_DISK_ERR; - } while (--m); - - /* Create FSInfo record if needed */ - if (fmt == FS_FAT32) { - ST_WORD(tbl+BS_55AA, 0xAA55); - ST_DWORD(tbl+FSI_LeadSig, 0x41615252); - ST_DWORD(tbl+FSI_StrucSig, 0x61417272); - ST_DWORD(tbl+FSI_Free_Count, n_clst - 1); - ST_DWORD(tbl+FSI_Nxt_Free, 0xFFFFFFFF); - disk_write(drv, tbl, b_part+1, 1); - disk_write(drv, tbl, b_part+7, 1); - } - - return (disk_ioctl(drv, CTRL_SYNC, (void*)NULL) == RES_OK) ? FR_OK : FR_DISK_ERR; -} - -#endif /* _USE_MKFS && !_FS_READONLY */ - - - - -#if _USE_STRFUNC -/*-----------------------------------------------------------------------*/ -/* Get a string from the file */ -/*-----------------------------------------------------------------------*/ -char* f_gets ( - char* buff, /* Pointer to the string buffer to read */ - int len, /* Size of string buffer */ - FIL* fil /* Pointer to the file object */ -) -{ - int i = 0; - char *p = buff; - UINT rc; - - - while (i < len - 1) { /* Read bytes until buffer gets filled */ - f_read(fil, p, 1, &rc); - if (rc != 1) break; /* Break when no data to read */ -#if _USE_STRFUNC >= 2 - if (*p == '\r') continue; /* Strip '\r' */ -#endif - i++; - if (*p++ == '\n') break; /* Break when reached end of line */ - } - *p = 0; - return i ? buff : NULL; /* When no data read (eof or error), return with error. */ -} - - - -#if !_FS_READONLY -#include -/*-----------------------------------------------------------------------*/ -/* Put a character to the file */ -/*-----------------------------------------------------------------------*/ -int f_putc ( - int chr, /* A character to be output */ - FIL* fil /* Ponter to the file object */ -) -{ - UINT bw; - char c; - - -#if _USE_STRFUNC >= 2 - if (chr == '\n') f_putc ('\r', fil); /* LF -> CRLF conversion */ -#endif - if (!fil) { /* Special value may be used to switch the destination to any other device */ - /* put_console(chr); */ - return chr; - } - c = (char)chr; - f_write(fil, &c, 1, &bw); /* Write a byte to the file */ - return bw ? chr : EOF; /* Return the result */ -} - - - - -/*-----------------------------------------------------------------------*/ -/* Put a string to the file */ -/*-----------------------------------------------------------------------*/ -int f_puts ( - const char* str, /* Pointer to the string to be output */ - FIL* fil /* Pointer to the file object */ -) -{ - int n; - - - for (n = 0; *str; str++, n++) { - if (f_putc(*str, fil) == EOF) return EOF; - } - return n; -} - - - - -/*-----------------------------------------------------------------------*/ -/* Put a formatted string to the file */ -/*-----------------------------------------------------------------------*/ -int f_printf ( - FIL* fil, /* Pointer to the file object */ - const char* str, /* Pointer to the format string */ - ... /* Optional arguments... */ -) -{ - va_list arp; - UCHAR c, f, r; - ULONG val; - char s[16]; - int i, w, res, cc; - - - va_start(arp, str); - - for (cc = res = 0; cc != EOF; res += cc) { - c = *str++; - if (c == 0) break; /* End of string */ - if (c != '%') { /* Non escape cahracter */ - cc = f_putc(c, fil); - if (cc != EOF) cc = 1; - continue; - } - w = f = 0; - c = *str++; - if (c == '0') { /* Flag: '0' padding */ - f = 1; c = *str++; - } - while (c >= '0' && c <= '9') { /* Precision */ - w = w * 10 + (c - '0'); - c = *str++; - } - if (c == 'l') { /* Prefix: Size is long int */ - f |= 2; c = *str++; - } - if (c == 's') { /* Type is string */ - cc = f_puts(va_arg(arp, char*), fil); - continue; - } - if (c == 'c') { /* Type is character */ - cc = f_putc(va_arg(arp, int), fil); - if (cc != EOF) cc = 1; - continue; - } - r = 0; - if (c == 'd') r = 10; /* Type is signed decimal */ - if (c == 'u') r = 10; /* Type is unsigned decimal */ - if (c == 'X') r = 16; /* Type is unsigned hexdecimal */ - if (r == 0) break; /* Unknown type */ - if (f & 2) { /* Get the value */ - val = (ULONG)va_arg(arp, long); - } else { - val = (c == 'd') ? (ULONG)(long)va_arg(arp, int) : (ULONG)va_arg(arp, unsigned int); - } - /* Put numeral string */ - if (c == 'd') { - if (val & 0x80000000) { - val = 0 - val; - f |= 4; - } - } - i = sizeof(s) - 1; s[i] = 0; - do { - c = (UCHAR)(val % r + '0'); - if (c > '9') c += 7; - s[--i] = c; - val /= r; - } while (i && val); - if (i && (f & 4)) s[--i] = '-'; - w = sizeof(s) - 1 - w; - while (i && i > w) s[--i] = (f & 1) ? '0' : ' '; - cc = f_puts(&s[i], fil); - } - - va_end(arp); - return (cc == EOF) ? cc : res; -} - -#endif /* !_FS_READONLY */ -#endif /* _USE_STRFUNC */ +/*----------------------------------------------------------------------------/ +/ FatFs - FAT file system module R0.07e (C)ChaN, 2010 +/-----------------------------------------------------------------------------/ +/ FatFs module is a generic FAT file system module for small embedded systems. +/ This is a free software that opened for education, research and commercial +/ developments under license policy of following trems. +/ +/ Copyright (C) 2010, ChaN, all right reserved. +/ +/ * The FatFs module is a free software and there is NO WARRANTY. +/ * No restriction on use. You can use, modify and redistribute it for +/ personal, non-profit or commercial products UNDER YOUR RESPONSIBILITY. +/ * Redistributions of source code must retain the above copyright notice. +/ +/-----------------------------------------------------------------------------/ +/ Feb 26,'06 R0.00 Prototype. +/ +/ Apr 29,'06 R0.01 First stable version. +/ +/ Jun 01,'06 R0.02 Added FAT12 support. +/ Removed unbuffered mode. +/ Fixed a problem on small (<32M) patition. +/ Jun 10,'06 R0.02a Added a configuration option (_FS_MINIMUM). +/ +/ Sep 22,'06 R0.03 Added f_rename(). +/ Changed option _FS_MINIMUM to _FS_MINIMIZE. +/ Dec 11,'06 R0.03a Improved cluster scan algolithm to write files fast. +/ Fixed f_mkdir() creates incorrect directory on FAT32. +/ +/ Feb 04,'07 R0.04 Supported multiple drive system. +/ Changed some interfaces for multiple drive system. +/ Changed f_mountdrv() to f_mount(). +/ Added f_mkfs(). +/ Apr 01,'07 R0.04a Supported multiple partitions on a plysical drive. +/ Added a capability of extending file size to f_lseek(). +/ Added minimization level 3. +/ Fixed an endian sensitive code in f_mkfs(). +/ May 05,'07 R0.04b Added a configuration option _USE_NTFLAG. +/ Added FSInfo support. +/ Fixed DBCS name can result FR_INVALID_NAME. +/ Fixed short seek (<= csize) collapses the file object. +/ +/ Aug 25,'07 R0.05 Changed arguments of f_read(), f_write() and f_mkfs(). +/ Fixed f_mkfs() on FAT32 creates incorrect FSInfo. +/ Fixed f_mkdir() on FAT32 creates incorrect directory. +/ Feb 03,'08 R0.05a Added f_truncate() and f_utime(). +/ Fixed off by one error at FAT sub-type determination. +/ Fixed btr in f_read() can be mistruncated. +/ Fixed cached sector is not flushed when create and close +/ without write. +/ +/ Apr 01,'08 R0.06 Added fputc(), fputs(), fprintf() and fgets(). +/ Improved performance of f_lseek() on moving to the same +/ or following cluster. +/ +/ Apr 01,'09 R0.07 Merged Tiny-FatFs as a buffer configuration option. +/ Added long file name support. +/ Added multiple code page support. +/ Added re-entrancy for multitask operation. +/ Added auto cluster size selection to f_mkfs(). +/ Added rewind option to f_readdir(). +/ Changed result code of critical errors. +/ Renamed string functions to avoid name collision. +/ Apr 14,'09 R0.07a Separated out OS dependent code on reentrant cfg. +/ Added multiple sector size support. +/ Jun 21,'09 R0.07c Fixed f_unlink() can return FR_OK on error. +/ Fixed wrong cache control in f_lseek(). +/ Added relative path feature. +/ Added f_chdir() and f_chdrive(). +/ Added proper case conversion to extended char. +/ Nov 03,'09 R0.07e Separated out configuration options from ff.h to ffconf.h. +/ Fixed f_unlink() fails to remove a sub-dir on _FS_RPATH. +/ Fixed name matching error on the 13 char boundary. +/ Added a configuration option, _LFN_UNICODE. +/ Changed f_readdir() to return the SFN with always upper +/ case on non-LFN cfg. +/---------------------------------------------------------------------------*/ + +#include "ff.h" /* FatFs configurations and declarations */ +#include "diskio.h" /* Declarations of low level disk I/O functions */ + +/*-------------------------------------------------------------------------- + + Module Private Definitions + +---------------------------------------------------------------------------*/ + +#if _FATFS != 0x007E +#error Wrong include file (ff.h). +#endif + +#if _FS_REENTRANT +#if _USE_LFN == 1 +#error Static LFN work area must not be used in re-entrant configuration. +#endif +#define ENTER_FF(fs) { if (!lock_fs(fs)) return FR_TIMEOUT; } +#define LEAVE_FF(fs, res) { unlock_fs(fs, res); return res; } + +#else +#define ENTER_FF(fs) +#define LEAVE_FF(fs, res) return res + +#endif + +#define ABORT(fs, res) { fp->flag |= FA__ERROR; LEAVE_FF(fs, res); } + +#ifndef NULL +#define NULL 0 +#endif + +/* Name status flags */ +#define NS 11 /* Offset of name status byte */ +#define NS_LOSS 0x01 /* Out of 8.3 format */ +#define NS_LFN 0x02 /* Force to create LFN entry */ +#define NS_LAST 0x04 /* Last segment */ +#define NS_BODY 0x08 /* Lower case flag (body) */ +#define NS_EXT 0x10 /* Lower case flag (ext) */ +#define NS_DOT 0x20 /* Dot entry */ + + + + +/*-------------------------------------------------------------------------- + + Private Work Area + +---------------------------------------------------------------------------*/ + +#if _DRIVES < 1 || _DRIVES > 9 +#error Number of drives must be 1-9. +#endif +static +FATFS *FatFs[_DRIVES]; /* Pointer to the file system objects (logical drives) */ + +static +WORD Fsid; /* File system mount ID */ + +#if _FS_RPATH +static +BYTE Drive; /* Current drive */ +#endif + + +#if _USE_LFN == 1 /* LFN with static LFN working buffer */ +static +WCHAR LfnBuf[_MAX_LFN + 1]; +#define NAMEBUF(sp,lp) BYTE sp[12]; WCHAR *lp = LfnBuf +#define INITBUF(dj,sp,lp) dj.fn = sp; dj.lfn = lp + +#elif _USE_LFN > 1 /* LFN with dynamic LFN working buffer */ +#define NAMEBUF(sp,lp) BYTE sp[12]; WCHAR lbuf[_MAX_LFN + 1], *lp = lbuf +#define INITBUF(dj,sp,lp) dj.fn = sp; dj.lfn = lp + +#else /* No LFN */ +#define NAMEBUF(sp,lp) BYTE sp[12] +#define INITBUF(dj,sp,lp) dj.fn = sp + +#endif + + + + +/*-------------------------------------------------------------------------- + + Module Private Functions + +---------------------------------------------------------------------------*/ + + +/*-----------------------------------------------------------------------*/ +/* String functions */ +/*-----------------------------------------------------------------------*/ + +/* Copy memory to memory */ +static +void mem_cpy (void* dst, const void* src, int cnt) { + char *d = (char*)dst; + const char *s = (const char *)src; + while (cnt--) *d++ = *s++; +} + +/* Fill memory */ +static +void mem_set (void* dst, int val, int cnt) { + char *d = (char*)dst; + while (cnt--) *d++ = (char)val; +} + +/* Compare memory to memory */ +static +int mem_cmp (const void* dst, const void* src, int cnt) { + const char *d = (const char *)dst, *s = (const char *)src; + int r = 0; + while (cnt-- && (r = *d++ - *s++) == 0) ; + return r; +} + +/* Check if chr is contained in the string */ +static +int chk_chr (const char* str, int chr) { + while (*str && *str != chr) str++; + return *str; +} + + + +/*-----------------------------------------------------------------------*/ +/* Request/Release grant to access the volume */ +/*-----------------------------------------------------------------------*/ +#if _FS_REENTRANT + +static +BOOL lock_fs ( + FATFS *fs /* File system object */ +) +{ + return ff_req_grant(fs->sobj); +} + + +static +void unlock_fs ( + FATFS *fs, /* File system object */ + FRESULT res /* Result code to be returned */ +) +{ + if (res != FR_NOT_ENABLED && + res != FR_INVALID_DRIVE && + res != FR_INVALID_OBJECT && + res != FR_TIMEOUT) { + ff_rel_grant(fs->sobj); + } +} +#endif + + + +/*-----------------------------------------------------------------------*/ +/* Change window offset */ +/*-----------------------------------------------------------------------*/ + +static +FRESULT move_window ( + FATFS *fs, /* File system object */ + DWORD sector /* Sector number to make apperance in the fs->win[] */ +) /* Move to zero only writes back dirty window */ +{ + DWORD wsect; + + + wsect = fs->winsect; + if (wsect != sector) { /* Changed current window */ +#if !_FS_READONLY + if (fs->wflag) { /* Write back dirty window if needed */ + if (disk_write(fs->drive, fs->win, wsect, 1) != RES_OK) + return FR_DISK_ERR; + fs->wflag = 0; + if (wsect < (fs->fatbase + fs->sects_fat)) { /* In FAT area */ + BYTE nf; + for (nf = fs->n_fats; nf > 1; nf--) { /* Refrect the change to all FAT copies */ + wsect += fs->sects_fat; + disk_write(fs->drive, fs->win, wsect, 1); + } + } + } +#endif + if (sector) { + if (disk_read(fs->drive, fs->win, sector, 1) != RES_OK) + return FR_DISK_ERR; + fs->winsect = sector; + } + } + + return FR_OK; +} + + + + +/*-----------------------------------------------------------------------*/ +/* Clean-up cached data */ +/*-----------------------------------------------------------------------*/ +#if !_FS_READONLY +static +FRESULT sync ( /* FR_OK: successful, FR_DISK_ERR: failed */ + FATFS *fs /* File system object */ +) +{ + FRESULT res; + + + res = move_window(fs, 0); + if (res == FR_OK) { + /* Update FSInfo sector if needed */ + if (fs->fs_type == FS_FAT32 && fs->fsi_flag) { + fs->winsect = 0; + mem_set(fs->win, 0, 512); + ST_WORD(fs->win+BS_55AA, 0xAA55); + ST_DWORD(fs->win+FSI_LeadSig, 0x41615252); + ST_DWORD(fs->win+FSI_StrucSig, 0x61417272); + ST_DWORD(fs->win+FSI_Free_Count, fs->free_clust); + ST_DWORD(fs->win+FSI_Nxt_Free, fs->last_clust); + disk_write(fs->drive, fs->win, fs->fsi_sector, 1); + fs->fsi_flag = 0; + } + /* Make sure that no pending write process in the physical drive */ + if (disk_ioctl(fs->drive, CTRL_SYNC, (void*)NULL) != RES_OK) + res = FR_DISK_ERR; + } + + return res; +} +#endif + + + + +/*-----------------------------------------------------------------------*/ +/* FAT access - Read value of a FAT entry */ +/*-----------------------------------------------------------------------*/ + + +DWORD get_fat ( /* 0xFFFFFFFF:Disk error, 1:Interal error, Else:Cluster status */ + FATFS *fs, /* File system object */ + DWORD clst /* Cluster# to get the link information */ +) +{ + UINT wc, bc; + DWORD fsect; + + + if (clst < 2 || clst >= fs->max_clust) /* Range check */ + return 1; + + fsect = fs->fatbase; + switch (fs->fs_type) { + case FS_FAT12 : + bc = clst; bc += bc / 2; + if (move_window(fs, fsect + (bc / SS(fs)))) break; + wc = fs->win[bc & (SS(fs) - 1)]; bc++; + if (move_window(fs, fsect + (bc / SS(fs)))) break; + wc |= (WORD)fs->win[bc & (SS(fs) - 1)] << 8; + return (clst & 1) ? (wc >> 4) : (wc & 0xFFF); + + case FS_FAT16 : + if (move_window(fs, fsect + (clst / (SS(fs) / 2)))) break; + return LD_WORD(&fs->win[((WORD)clst * 2) & (SS(fs) - 1)]); + + case FS_FAT32 : + if (move_window(fs, fsect + (clst / (SS(fs) / 4)))) break; + return LD_DWORD(&fs->win[((WORD)clst * 4) & (SS(fs) - 1)]) & 0x0FFFFFFF; + } + + return 0xFFFFFFFF; /* An error occured at the disk I/O layer */ +} + + + + +/*-----------------------------------------------------------------------*/ +/* FAT access - Change value of a FAT entry */ +/*-----------------------------------------------------------------------*/ +#if !_FS_READONLY + +FRESULT put_fat ( + FATFS *fs, /* File system object */ + DWORD clst, /* Cluster# to be changed in range of 2 to fs->max_clust - 1 */ + DWORD val /* New value to mark the cluster */ +) +{ + UINT bc; + BYTE *p; + DWORD fsect; + FRESULT res; + + + if (clst < 2 || clst >= fs->max_clust) { /* Range check */ + res = FR_INT_ERR; + + } else { + fsect = fs->fatbase; + switch (fs->fs_type) { + case FS_FAT12 : + bc = clst; bc += bc / 2; + res = move_window(fs, fsect + (bc / SS(fs))); + if (res != FR_OK) break; + p = &fs->win[bc & (SS(fs) - 1)]; + *p = (clst & 1) ? ((*p & 0x0F) | ((BYTE)val << 4)) : (BYTE)val; + bc++; + fs->wflag = 1; + res = move_window(fs, fsect + (bc / SS(fs))); + if (res != FR_OK) break; + p = &fs->win[bc & (SS(fs) - 1)]; + *p = (clst & 1) ? (BYTE)(val >> 4) : ((*p & 0xF0) | ((BYTE)(val >> 8) & 0x0F)); + break; + + case FS_FAT16 : + res = move_window(fs, fsect + (clst / (SS(fs) / 2))); + if (res != FR_OK) break; + ST_WORD(&fs->win[((WORD)clst * 2) & (SS(fs) - 1)], (WORD)val); + break; + + case FS_FAT32 : + res = move_window(fs, fsect + (clst / (SS(fs) / 4))); + if (res != FR_OK) break; + ST_DWORD(&fs->win[((WORD)clst * 4) & (SS(fs) - 1)], val); + break; + + default : + res = FR_INT_ERR; + } + fs->wflag = 1; + } + + return res; +} +#endif /* !_FS_READONLY */ + + + + +/*-----------------------------------------------------------------------*/ +/* FAT handling - Remove a cluster chain */ +/*-----------------------------------------------------------------------*/ +#if !_FS_READONLY +static +FRESULT remove_chain ( + FATFS *fs, /* File system object */ + DWORD clst /* Cluster# to remove a chain from */ +) +{ + FRESULT res; + DWORD nxt; + + + if (clst < 2 || clst >= fs->max_clust) { /* Check the range of cluster# */ + res = FR_INT_ERR; + + } else { + res = FR_OK; + while (clst < fs->max_clust) { /* Not a last link? */ + nxt = get_fat(fs, clst); /* Get cluster status */ + if (nxt == 0) break; /* Empty cluster? */ + if (nxt == 1) { res = FR_INT_ERR; break; } /* Internal error? */ + if (nxt == 0xFFFFFFFF) { res = FR_DISK_ERR; break; } /* Disk error? */ + res = put_fat(fs, clst, 0); /* Mark the cluster "empty" */ + if (res != FR_OK) break; + if (fs->free_clust != 0xFFFFFFFF) { /* Update FSInfo */ + fs->free_clust++; + fs->fsi_flag = 1; + } + clst = nxt; /* Next cluster */ + } + } + + return res; +} +#endif + + + + +/*-----------------------------------------------------------------------*/ +/* FAT handling - Stretch or Create a cluster chain */ +/*-----------------------------------------------------------------------*/ +#if !_FS_READONLY +static +DWORD create_chain ( /* 0:No free cluster, 1:Internal error, 0xFFFFFFFF:Disk error, >=2:New cluster# */ + FATFS *fs, /* File system object */ + DWORD clst /* Cluster# to stretch. 0 means create a new chain. */ +) +{ + DWORD cs, ncl, scl, mcl; + + + mcl = fs->max_clust; + if (clst == 0) { /* Create new chain */ + scl = fs->last_clust; /* Get suggested start point */ + if (scl == 0 || scl >= mcl) scl = 1; + } + else { /* Stretch existing chain */ + cs = get_fat(fs, clst); /* Check the cluster status */ + if (cs < 2) return 1; /* It is an invalid cluster */ + if (cs < mcl) return cs; /* It is already followed by next cluster */ + scl = clst; + } + + ncl = scl; /* Start cluster */ + for (;;) { + ncl++; /* Next cluster */ + if (ncl >= mcl) { /* Wrap around */ + ncl = 2; + if (ncl > scl) return 0; /* No free custer */ + } + cs = get_fat(fs, ncl); /* Get the cluster status */ + if (cs == 0) break; /* Found a free cluster */ + if (cs == 0xFFFFFFFF || cs == 1)/* An error occured */ + return cs; + if (ncl == scl) return 0; /* No free custer */ + } + + if (put_fat(fs, ncl, 0x0FFFFFFF)) /* Mark the new cluster "in use" */ + return 0xFFFFFFFF; + if (clst != 0) { /* Link it to the previous one if needed */ + if (put_fat(fs, clst, ncl)) + return 0xFFFFFFFF; + } + + fs->last_clust = ncl; /* Update FSINFO */ + if (fs->free_clust != 0xFFFFFFFF) { + fs->free_clust--; + fs->fsi_flag = 1; + } + + return ncl; /* Return new cluster number */ +} +#endif /* !_FS_READONLY */ + + + + +/*-----------------------------------------------------------------------*/ +/* Get sector# from cluster# */ +/*-----------------------------------------------------------------------*/ + + +DWORD clust2sect ( /* !=0: Sector number, 0: Failed - invalid cluster# */ + FATFS *fs, /* File system object */ + DWORD clst /* Cluster# to be converted */ +) +{ + clst -= 2; + if (clst >= (fs->max_clust - 2)) return 0; /* Invalid cluster# */ + return clst * fs->csize + fs->database; +} + + + + +/*-----------------------------------------------------------------------*/ +/* Directory handling - Seek directory index */ +/*-----------------------------------------------------------------------*/ + +static +FRESULT dir_seek ( + DIR *dj, /* Pointer to directory object */ + WORD idx /* Directory index number */ +) +{ + DWORD clst; + WORD ic; + + + dj->index = idx; + clst = dj->sclust; + if (clst == 1 || clst >= dj->fs->max_clust) /* Check start cluster range */ + return FR_INT_ERR; + if (!clst && dj->fs->fs_type == FS_FAT32) /* Replace cluster# 0 with root cluster# if in FAT32 */ + clst = dj->fs->dirbase; + + if (clst == 0) { /* Static table */ + dj->clust = clst; + if (idx >= dj->fs->n_rootdir) /* Index is out of range */ + return FR_INT_ERR; + dj->sect = dj->fs->dirbase + idx / (SS(dj->fs) / 32); /* Sector# */ + } + else { /* Dynamic table */ + ic = SS(dj->fs) / 32 * dj->fs->csize; /* Entries per cluster */ + while (idx >= ic) { /* Follow cluster chain */ + clst = get_fat(dj->fs, clst); /* Get next cluster */ + if (clst == 0xFFFFFFFF) return FR_DISK_ERR; /* Disk error */ + if (clst < 2 || clst >= dj->fs->max_clust) /* Reached to end of table or int error */ + return FR_INT_ERR; + idx -= ic; + } + dj->clust = clst; + dj->sect = clust2sect(dj->fs, clst) + idx / (SS(dj->fs) / 32); /* Sector# */ + } + + dj->dir = dj->fs->win + (idx % (SS(dj->fs) / 32)) * 32; /* Ptr to the entry in the sector */ + + return FR_OK; /* Seek succeeded */ +} + + + + +/*-----------------------------------------------------------------------*/ +/* Directory handling - Move directory index next */ +/*-----------------------------------------------------------------------*/ + +static +FRESULT dir_next ( /* FR_OK:Succeeded, FR_NO_FILE:End of table, FR_DENIED:EOT and could not streach */ + DIR *dj, /* Pointer to directory object */ + BOOL streach /* FALSE: Do not streach table, TRUE: Streach table if needed */ +) +{ + DWORD clst; + WORD i; + + + i = dj->index + 1; + if (!i || !dj->sect) /* Report EOT when index has reached 65535 */ + return FR_NO_FILE; + + if (!(i % (SS(dj->fs) / 32))) { /* Sector changed? */ + dj->sect++; /* Next sector */ + + if (dj->clust == 0) { /* Static table */ + if (i >= dj->fs->n_rootdir) /* Report EOT when end of table */ + return FR_NO_FILE; + } + else { /* Dynamic table */ + if (((i / (SS(dj->fs) / 32)) & (dj->fs->csize - 1)) == 0) { /* Cluster changed? */ + clst = get_fat(dj->fs, dj->clust); /* Get next cluster */ + if (clst <= 1) return FR_INT_ERR; + if (clst == 0xFFFFFFFF) return FR_DISK_ERR; + if (clst >= dj->fs->max_clust) { /* When it reached end of dynamic table */ +#if !_FS_READONLY + BYTE c; + if (!streach) return FR_NO_FILE; /* When do not streach, report EOT */ + clst = create_chain(dj->fs, dj->clust); /* Streach cluster chain */ + if (clst == 0) return FR_DENIED; /* No free cluster */ + if (clst == 1) return FR_INT_ERR; + if (clst == 0xFFFFFFFF) return FR_DISK_ERR; + /* Clean-up streached table */ + if (move_window(dj->fs, 0)) return FR_DISK_ERR; /* Flush active window */ + mem_set(dj->fs->win, 0, SS(dj->fs)); /* Clear window buffer */ + dj->fs->winsect = clust2sect(dj->fs, clst); /* Cluster start sector */ + for (c = 0; c < dj->fs->csize; c++) { /* Fill the new cluster with 0 */ + dj->fs->wflag = 1; + if (move_window(dj->fs, 0)) return FR_DISK_ERR; + dj->fs->winsect++; + } + dj->fs->winsect -= c; /* Rewind window address */ +#else + return FR_NO_FILE; /* Report EOT */ +#endif + } + dj->clust = clst; /* Initialize data for new cluster */ + dj->sect = clust2sect(dj->fs, clst); + } + } + } + + dj->index = i; + dj->dir = dj->fs->win + (i % (SS(dj->fs) / 32)) * 32; + + return FR_OK; +} + + + + +/*-----------------------------------------------------------------------*/ +/* LFN handling - Test/Pick/Fit an LFN segment from/to directory entry */ +/*-----------------------------------------------------------------------*/ +#if _USE_LFN +static +const BYTE LfnOfs[] = {1,3,5,7,9,14,16,18,20,22,24,28,30}; /* Offset of LFN chars in the directory entry */ + + +static +BOOL cmp_lfn ( /* TRUE:Matched, FALSE:Not matched */ + WCHAR *lfnbuf, /* Pointer to the LFN to be compared */ + BYTE *dir /* Pointer to the directory entry containing a part of LFN */ +) +{ + int i, s; + WCHAR wc, uc; + + + i = ((dir[LDIR_Ord] & 0xBF) - 1) * 13; /* Get offset in the LFN buffer */ + s = 0; wc = 1; + do { + uc = LD_WORD(dir+LfnOfs[s]); /* Pick an LFN character from the entry */ + if (wc) { /* Last char has not been processed */ + wc = ff_wtoupper(uc); /* Convert it to upper case */ + if (i >= _MAX_LFN || wc != ff_wtoupper(lfnbuf[i++])) /* Compare it */ + return FALSE; /* Not matched */ + } else { + if (uc != 0xFFFF) return FALSE; /* Check filler */ + } + } while (++s < 13); /* Repeat until all chars in the entry are checked */ + + if ((dir[LDIR_Ord] & 0x40) && wc && lfnbuf[i]) /* Last segment matched but different length */ + return FALSE; + + return TRUE; /* The part of LFN matched */ +} + + + +static +BOOL pick_lfn ( /* TRUE:Succeeded, FALSE:Buffer overflow */ + WCHAR *lfnbuf, /* Pointer to the Unicode-LFN buffer */ + BYTE *dir /* Pointer to the directory entry */ +) +{ + int i, s; + WCHAR wc, uc; + + + i = ((dir[LDIR_Ord] & 0x3F) - 1) * 13; /* Offset in the LFN buffer */ + + s = 0; wc = 1; + do { + uc = LD_WORD(dir+LfnOfs[s]); /* Pick an LFN character from the entry */ + if (wc) { /* Last char has not been processed */ + if (i >= _MAX_LFN) return FALSE; /* Buffer overflow? */ + lfnbuf[i++] = wc = uc; /* Store it */ + } else { + if (uc != 0xFFFF) return FALSE; /* Check filler */ + } + } while (++s < 13); /* Read all character in the entry */ + + if (dir[LDIR_Ord] & 0x40) { /* Put terminator if it is the last LFN part */ + if (i >= _MAX_LFN) return FALSE; /* Buffer overflow? */ + lfnbuf[i] = 0; + } + + return TRUE; +} + + +#if !_FS_READONLY +static +void fit_lfn ( + const WCHAR *lfnbuf, /* Pointer to the LFN buffer */ + BYTE *dir, /* Pointer to the directory entry */ + BYTE ord, /* LFN order (1-20) */ + BYTE sum /* SFN sum */ +) +{ + int i, s; + WCHAR wc; + + + dir[LDIR_Chksum] = sum; /* Set check sum */ + dir[LDIR_Attr] = AM_LFN; /* Set attribute. LFN entry */ + dir[LDIR_Type] = 0; + ST_WORD(dir+LDIR_FstClusLO, 0); + + i = (ord - 1) * 13; /* Get offset in the LFN buffer */ + s = wc = 0; + do { + if (wc != 0xFFFF) wc = lfnbuf[i++]; /* Get an effective char */ + ST_WORD(dir+LfnOfs[s], wc); /* Put it */ + if (!wc) wc = 0xFFFF; /* Padding chars following last char */ + } while (++s < 13); + if (wc == 0xFFFF || !lfnbuf[i]) ord |= 0x40; /* Bottom LFN part is the start of LFN sequence */ + dir[LDIR_Ord] = ord; /* Set the LFN order */ +} + +#endif +#endif + + + +/*-----------------------------------------------------------------------*/ +/* Create numbered name */ +/*-----------------------------------------------------------------------*/ +#if _USE_LFN +void gen_numname ( + BYTE *dst, /* Pointer to genartated SFN */ + const BYTE *src, /* Pointer to source SFN to be modified */ + const WCHAR *lfn, /* Pointer to LFN */ + WORD num /* Sequense number */ +) +{ + char ns[8]; + int i, j; + + + mem_cpy(dst, src, 11); + + if (num > 5) { /* On many collisions, generate a hash number instead of sequencial number */ + do num = (num >> 1) + (num << 15) + (WORD)*lfn++; while (*lfn); + } + + /* itoa */ + i = 7; + do { + ns[i--] = (num % 10) + '0'; + num /= 10; + } while (num); + ns[i] = '~'; + + /* Append the number */ + for (j = 0; j < i && dst[j] != ' '; j++) { + if (IsDBCS1(dst[j])) { + if (j == i - 1) break; + j++; + } + } + do { + dst[j++] = (i < 8) ? ns[i++] : ' '; + } while (j < 8); +} +#endif + + + + +/*-----------------------------------------------------------------------*/ +/* Calculate sum of an SFN */ +/*-----------------------------------------------------------------------*/ +#if _USE_LFN +static +BYTE sum_sfn ( + const BYTE *dir /* Ptr to directory entry */ +) +{ + BYTE sum = 0; + int n = 11; + + do sum = (sum >> 1) + (sum << 7) + *dir++; while (--n); + return sum; +} +#endif + + + + +/*-----------------------------------------------------------------------*/ +/* Directory handling - Find an object in the directory */ +/*-----------------------------------------------------------------------*/ + +static +FRESULT dir_find ( + DIR *dj /* Pointer to the directory object linked to the file name */ +) +{ + FRESULT res; + BYTE c, *dir; +#if _USE_LFN + BYTE a, ord, sum; +#endif + + res = dir_seek(dj, 0); /* Rewind directory object */ + if (res != FR_OK) return res; + +#if _USE_LFN + ord = sum = 0xFF; +#endif + do { + res = move_window(dj->fs, dj->sect); + if (res != FR_OK) break; + dir = dj->dir; /* Ptr to the directory entry of current index */ + c = dir[DIR_Name]; + if (c == 0) { res = FR_NO_FILE; break; } /* Reached to end of table */ +#if _USE_LFN /* LFN configuration */ + a = dir[DIR_Attr] & AM_MASK; + if (c == 0xE5 || ((a & AM_VOL) && a != AM_LFN)) { /* An entry without valid data */ + ord = 0xFF; + } else { + if (a == AM_LFN) { /* An LFN entry is found */ + if (dj->lfn) { + if (c & 0x40) { /* Is it start of LFN sequence? */ + sum = dir[LDIR_Chksum]; + c &= 0xBF; ord = c; /* LFN start order */ + dj->lfn_idx = dj->index; + } + /* Check validity of the LFN entry and compare it with given name */ + ord = (c == ord && sum == dir[LDIR_Chksum] && cmp_lfn(dj->lfn, dir)) ? ord - 1 : 0xFF; + } + } else { /* An SFN entry is found */ + if (!ord && sum == sum_sfn(dir)) break; /* LFN matched? */ + ord = 0xFF; dj->lfn_idx = 0xFFFF; /* Reset LFN sequence */ + if (!(dj->fn[NS] & NS_LOSS) && !mem_cmp(dir, dj->fn, 11)) break; /* SFN matched? */ + } + } +#else /* Non LFN configuration */ + if (!(dir[DIR_Attr] & AM_VOL) && !mem_cmp(dir, dj->fn, 11)) /* Is it a valid entry? */ + break; +#endif + res = dir_next(dj, FALSE); /* Next entry */ + } while (res == FR_OK); + + return res; +} + + + + +/*-----------------------------------------------------------------------*/ +/* Read an object from the directory */ +/*-----------------------------------------------------------------------*/ +#if _FS_MINIMIZE <= 1 +static +FRESULT dir_read ( + DIR *dj /* Pointer to the directory object that pointing the entry to be read */ +) +{ + FRESULT res; + BYTE c, *dir; +#if _USE_LFN + BYTE a, ord = 0xFF, sum = 0xFF; +#endif + + res = FR_NO_FILE; + while (dj->sect) { + res = move_window(dj->fs, dj->sect); + if (res != FR_OK) break; + dir = dj->dir; /* Ptr to the directory entry of current index */ + c = dir[DIR_Name]; + if (c == 0) { res = FR_NO_FILE; break; } /* Reached to end of table */ +#if _USE_LFN /* LFN configuration */ + a = dir[DIR_Attr] & AM_MASK; + if (c == 0xE5 || (!_FS_RPATH && c == '.') || ((a & AM_VOL) && a != AM_LFN)) { /* An entry without valid data */ + ord = 0xFF; + } else { + if (a == AM_LFN) { /* An LFN entry is found */ + if (c & 0x40) { /* Is it start of LFN sequence? */ + sum = dir[LDIR_Chksum]; + c &= 0xBF; ord = c; + dj->lfn_idx = dj->index; + } + /* Check LFN validity and capture it */ + ord = (c == ord && sum == dir[LDIR_Chksum] && pick_lfn(dj->lfn, dir)) ? ord - 1 : 0xFF; + } else { /* An SFN entry is found */ + if (ord || sum != sum_sfn(dir)) /* Is there a valid LFN? */ + dj->lfn_idx = 0xFFFF; /* It has no LFN. */ + break; + } + } +#else /* Non LFN configuration */ + if (c != 0xE5 && (_FS_RPATH || c != '.') && !(dir[DIR_Attr] & AM_VOL)) /* Is it a valid entry? */ + break; +#endif + res = dir_next(dj, FALSE); /* Next entry */ + if (res != FR_OK) break; + } + + if (res != FR_OK) dj->sect = 0; + + return res; +} +#endif + + + +/*-----------------------------------------------------------------------*/ +/* Register an object to the directory */ +/*-----------------------------------------------------------------------*/ +#if !_FS_READONLY +static +FRESULT dir_register ( /* FR_OK:Successful, FR_DENIED:No free entry or too many SFN collision, FR_DISK_ERR:Disk error */ + DIR *dj /* Target directory with object name to be created */ +) +{ + FRESULT res; + BYTE c, *dir; +#if _USE_LFN /* LFN configuration */ + WORD n, ne, is; + BYTE sn[12], *fn, sum; + WCHAR *lfn; + + + fn = dj->fn; lfn = dj->lfn; + mem_cpy(sn, fn, 12); + + if (_FS_RPATH && (sn[NS] & NS_DOT)) return FR_INVALID_NAME; /* Cannot create dot entry */ + + if (sn[NS] & NS_LOSS) { /* When LFN is out of 8.3 format, generate a numbered name */ + fn[NS] = 0; dj->lfn = NULL; /* Find only SFN */ + for (n = 1; n < 100; n++) { + gen_numname(fn, sn, lfn, n); /* Generate a numbered name */ + res = dir_find(dj); /* Check if the name collides with existing SFN */ + if (res != FR_OK) break; + } + if (n == 100) return FR_DENIED; /* Abort if too many collisions */ + if (res != FR_NO_FILE) return res; /* Abort if the result is other than 'not collided' */ + fn[NS] = sn[NS]; dj->lfn = lfn; + } + + if (sn[NS] & NS_LFN) { /* When LFN is to be created, reserve reserve an SFN + LFN entries. */ + for (ne = 0; lfn[ne]; ne++) ; + ne = (ne + 25) / 13; + } else { /* Otherwise reserve only an SFN entry. */ + ne = 1; + } + + /* Reserve contiguous entries */ + res = dir_seek(dj, 0); + if (res != FR_OK) return res; + n = is = 0; + do { + res = move_window(dj->fs, dj->sect); + if (res != FR_OK) break; + c = *dj->dir; /* Check the entry status */ + if (c == 0xE5 || c == 0) { /* Is it a blank entry? */ + if (n == 0) is = dj->index; /* First index of the contigulus entry */ + if (++n == ne) break; /* A contiguous entry that requiered count is found */ + } else { + n = 0; /* Not a blank entry. Restart to search */ + } + res = dir_next(dj, TRUE); /* Next entry with table streach */ + } while (res == FR_OK); + + if (res == FR_OK && ne > 1) { /* Initialize LFN entry if needed */ + res = dir_seek(dj, is); + if (res == FR_OK) { + sum = sum_sfn(dj->fn); /* Sum of the SFN tied to the LFN */ + ne--; + do { /* Store LFN entries in bottom first */ + res = move_window(dj->fs, dj->sect); + if (res != FR_OK) break; + fit_lfn(dj->lfn, dj->dir, (BYTE)ne, sum); + dj->fs->wflag = 1; + res = dir_next(dj, FALSE); /* Next entry */ + } while (res == FR_OK && --ne); + } + } + +#else /* Non LFN configuration */ + res = dir_seek(dj, 0); + if (res == FR_OK) { + do { /* Find a blank entry for the SFN */ + res = move_window(dj->fs, dj->sect); + if (res != FR_OK) break; + c = *dj->dir; + if (c == 0xE5 || c == 0) break; /* Is it a blank entry? */ + res = dir_next(dj, TRUE); /* Next entry with table streach */ + } while (res == FR_OK); + } +#endif + + if (res == FR_OK) { /* Initialize the SFN entry */ + res = move_window(dj->fs, dj->sect); + if (res == FR_OK) { + dir = dj->dir; + mem_set(dir, 0, 32); /* Clean the entry */ + mem_cpy(dir, dj->fn, 11); /* Put SFN */ + dir[DIR_NTres] = *(dj->fn+NS) & (NS_BODY | NS_EXT); /* Put NT flag */ + dj->fs->wflag = 1; + } + } + + return res; +} +#endif /* !_FS_READONLY */ + + + + +/*-----------------------------------------------------------------------*/ +/* Remove an object from the directory */ +/*-----------------------------------------------------------------------*/ +#if !_FS_READONLY && !_FS_MINIMIZE +static +FRESULT dir_remove ( /* FR_OK: Successful, FR_DISK_ERR: A disk error */ + DIR *dj /* Directory object pointing the entry to be removed */ +) +{ + FRESULT res; +#if _USE_LFN /* LFN configuration */ + WORD i; + + i = dj->index; /* SFN index */ + res = dir_seek(dj, (WORD)((dj->lfn_idx == 0xFFFF) ? i : dj->lfn_idx)); /* Goto the SFN or top of the LFN entries */ + if (res == FR_OK) { + do { + res = move_window(dj->fs, dj->sect); + if (res != FR_OK) break; + *dj->dir = 0xE5; /* Mark the entry "deleted" */ + dj->fs->wflag = 1; + if (dj->index >= i) break; /* When reached SFN, all entries of the object has been deleted. */ + res = dir_next(dj, FALSE); /* Next entry */ + } while (res == FR_OK); + if (res == FR_NO_FILE) res = FR_INT_ERR; + } + +#else /* Non LFN configuration */ + res = dir_seek(dj, dj->index); + if (res == FR_OK) { + res = move_window(dj->fs, dj->sect); + if (res == FR_OK) { + *dj->dir = 0xE5; /* Mark the entry "deleted" */ + dj->fs->wflag = 1; + } + } +#endif + + return res; +} +#endif /* !_FS_READONLY */ + + + + +/*-----------------------------------------------------------------------*/ +/* Pick a segment and create the object name in directory form */ +/*-----------------------------------------------------------------------*/ + +static +FRESULT create_name ( + DIR *dj, /* Pointer to the directory object */ + const XCHAR **path /* Pointer to pointer to the segment in the path string */ +) +{ +#ifdef _EXCVT + static const BYTE cvt[] = _EXCVT; +#endif + +#if _USE_LFN /* LFN configuration */ + BYTE b, cf; + WCHAR w, *lfn; + int i, ni, si, di; + const XCHAR *p; + + /* Create LFN in Unicode */ + si = di = 0; + p = *path; + lfn = dj->lfn; + for (;;) { + w = p[si++]; /* Get a character */ + if (w < ' ' || w == '/' || w == '\\') break; /* Break on end of segment */ + if (di >= _MAX_LFN) /* Reject too long name */ + return FR_INVALID_NAME; +#if !_LFN_UNICODE + w &= 0xFF; + if (IsDBCS1(w)) { /* If it is a DBC 1st byte */ + b = p[si++]; /* Get 2nd byte */ + if (!IsDBCS2(b)) /* Reject invalid code for DBC */ + return FR_INVALID_NAME; + w = (w << 8) + b; + } + w = ff_convert(w, 1); /* Convert OEM to Unicode */ + if (!w) return FR_INVALID_NAME; /* Reject invalid code */ +#endif + if (w < 0x80 && chk_chr("\"*:<>\?|\x7F", w)) /* Reject illegal chars for LFN */ + return FR_INVALID_NAME; + lfn[di++] = w; /* Store the Unicode char */ + } + *path = &p[si]; /* Rerurn pointer to the next segment */ + cf = (w < ' ') ? NS_LAST : 0; /* Set last segment flag if end of path */ +#if _FS_RPATH + if ((di == 1 && lfn[di - 1] == '.') || /* Is this a dot entry? */ + (di == 2 && lfn[di - 1] == '.' && lfn[di - 2] == '.')) { + lfn[di] = 0; + for (i = 0; i < 11; i++) + dj->fn[i] = (i < di) ? '.' : ' '; + dj->fn[i] = cf | NS_DOT; /* This is a dot entry */ + return FR_OK; + } +#endif + while (di) { /* Strip trailing spaces and dots */ + w = lfn[di - 1]; + if (w != ' ' && w != '.') break; + di--; + } + if (!di) return FR_INVALID_NAME; /* Reject null string */ + + lfn[di] = 0; /* LFN is created */ + + /* Create SFN in directory form */ + mem_set(dj->fn, ' ', 11); + for (si = 0; lfn[si] == ' ' || lfn[si] == '.'; si++) ; /* Strip leading spaces and dots */ + if (si) cf |= NS_LOSS | NS_LFN; + while (di && lfn[di - 1] != '.') di--; /* Find extension (di<=si: no extension) */ + + b = i = 0; ni = 8; + for (;;) { + w = lfn[si++]; /* Get an LFN char */ + if (!w) break; /* Break on enf of the LFN */ + if (w == ' ' || (w == '.' && si != di)) { /* Remove spaces and dots */ + cf |= NS_LOSS | NS_LFN; continue; + } + + if (i >= ni || si == di) { /* Extension or end of SFN */ + if (ni == 11) { /* Long extension */ + cf |= NS_LOSS | NS_LFN; break; + } + if (si != di) cf |= NS_LOSS | NS_LFN; /* Out of 8.3 format */ + if (si > di) break; /* No extension */ + si = di; i = 8; ni = 11; /* Enter extension section */ + b <<= 2; continue; + } + + if (w >= 0x80) { /* Non ASCII char */ +#ifdef _EXCVT + w = ff_convert(w, 0); /* Unicode -> OEM code */ + if (w) w = cvt[w - 0x80]; /* Convert extended char to upper (SBCS) */ +#else + w = ff_convert(ff_wtoupper(w), 0); /* Upper converted Unicode -> OEM code */ +#endif + cf |= NS_LFN; /* Force create LFN entry */ + } + + if (_DF1S && w >= 0x100) { /* Double byte char */ + if (i >= ni - 1) { + cf |= NS_LOSS | NS_LFN; i = ni; continue; + } + dj->fn[i++] = (BYTE)(w >> 8); + } else { /* Single byte char */ + if (!w || chk_chr("+,;[=]", w)) { /* Replace illegal chars for SFN */ + w = '_'; cf |= NS_LOSS | NS_LFN; /* Lossy conversion */ + } else { + if (IsUpper(w)) { /* ASCII large capital */ + b |= 2; + } else { + if (IsLower(w)) { /* ASCII small capital */ + b |= 1; w -= 0x20; + } + } + } + } + dj->fn[i++] = (BYTE)w; + } + + if (dj->fn[0] == 0xE5) dj->fn[0] = 0x05; /* If the first char collides with deleted mark, replace it with 0x05 */ + + if (ni == 8) b <<= 2; + if ((b & 0x0C) == 0x0C || (b & 0x03) == 0x03) /* Create LFN entry when there are composite capitals */ + cf |= NS_LFN; + if (!(cf & NS_LFN)) { /* When LFN is in 8.3 format without extended char, NT flags are created */ + if ((b & 0x03) == 0x01) cf |= NS_EXT; /* NT flag (Extension has only small capital) */ + if ((b & 0x0C) == 0x04) cf |= NS_BODY; /* NT flag (Filename has only small capital) */ + } + + dj->fn[NS] = cf; /* SFN is created */ + + return FR_OK; + + +#else /* Non-LFN configuration */ + BYTE b, c, d, *sfn; + int ni, si, i; + const char *p; + + /* Create file name in directory form */ + sfn = dj->fn; + mem_set(sfn, ' ', 11); + si = i = b = 0; ni = 8; + p = *path; +#if _FS_RPATH + if (p[si] == '.') { /* Is this a dot entry? */ + for (;;) { + c = p[si++]; + if (c != '.' || si >= 3) break; + sfn[i++] = c; + } + if (c != '/' && c != '\\' && c > ' ') return FR_INVALID_NAME; + *path = &p[si]; /* Rerurn pointer to the next segment */ + sfn[NS] = (c <= ' ') ? NS_LAST | NS_DOT : NS_DOT; /* Set last segment flag if end of path */ + return FR_OK; + } +#endif + for (;;) { + c = p[si++]; + if (c <= ' ' || c == '/' || c == '\\') break; /* Break on end of segment */ + if (c == '.' || i >= ni) { + if (ni != 8 || c != '.') return FR_INVALID_NAME; + i = 8; ni = 11; + b <<= 2; continue; + } + if (c >= 0x80) { /* Extended char */ +#ifdef _EXCVT + c = cvt[c - 0x80]; /* Convert extend char (SBCS) */ +#else + b |= 3; /* Eliminate NT flag if ext char is exist */ +#if !_DF1S /* ASCII only cfg */ + return FR_INVALID_NAME; +#endif +#endif + } + if (IsDBCS1(c)) { /* DBC 1st byte? */ + d = p[si++]; /* Get 2nd byte */ + if (!IsDBCS2(d) || i >= ni - 1) /* Reject invalid DBC */ + return FR_INVALID_NAME; + sfn[i++] = c; + sfn[i++] = d; + } else { /* Single byte code */ + if (chk_chr(" \"*+,[=]|\x7F", c)) /* Reject illegal chrs for SFN */ + return FR_INVALID_NAME; + if (IsUpper(c)) { /* ASCII large capital? */ + b |= 2; + } else { + if (IsLower(c)) { /* ASCII small capital? */ + b |= 1; c -= 0x20; + } + } + sfn[i++] = c; + } + } + *path = &p[si]; /* Rerurn pointer to the next segment */ + c = (c <= ' ') ? NS_LAST : 0; /* Set last segment flag if end of path */ + + if (!i) return FR_INVALID_NAME; /* Reject null string */ + if (sfn[0] == 0xE5) sfn[0] = 0x05; /* When first char collides with 0xE5, replace it with 0x05 */ + + if (ni == 8) b <<= 2; + if ((b & 0x03) == 0x01) c |= NS_EXT; /* NT flag (Extension has only small capital) */ + if ((b & 0x0C) == 0x04) c |= NS_BODY; /* NT flag (Filename has only small capital) */ + + sfn[NS] = c; /* Store NT flag, File name is created */ + + return FR_OK; +#endif +} + + + + +/*-----------------------------------------------------------------------*/ +/* Get file information from directory entry */ +/*-----------------------------------------------------------------------*/ +#if _FS_MINIMIZE <= 1 +static +void get_fileinfo ( /* No return code */ + DIR *dj, /* Pointer to the directory object */ + FILINFO *fno /* Pointer to the file information to be filled */ +) +{ + int i; + BYTE c, nt, *dir; + char *p; + + + p = fno->fname; + if (dj->sect) { + dir = dj->dir; + nt = dir[DIR_NTres]; /* NT flag */ + for (i = 0; i < 8; i++) { /* Copy name body */ + c = dir[i]; + if (c == ' ') break; + if (c == 0x05) c = 0xE5; + if (_USE_LFN && (nt & NS_BODY) && IsUpper(c)) c += 0x20; + *p++ = c; + } + if (dir[8] != ' ') { /* Copy name extension */ + *p++ = '.'; + for (i = 8; i < 11; i++) { + c = dir[i]; + if (c == ' ') break; + if (_USE_LFN && (nt & NS_EXT) && IsUpper(c)) c += 0x20; + *p++ = c; + } + } + fno->fattrib = dir[DIR_Attr]; /* Attribute */ + fno->fsize = LD_DWORD(dir+DIR_FileSize); /* Size */ + fno->fdate = LD_WORD(dir+DIR_WrtDate); /* Date */ + fno->ftime = LD_WORD(dir+DIR_WrtTime); /* Time */ + } + *p = 0; + +#if _USE_LFN + if (fno->lfname) { + XCHAR *tp = fno->lfname; + WCHAR w, *lfn; + + i = 0; + if (dj->sect && dj->lfn_idx != 0xFFFF) {/* Get LFN if available */ + lfn = dj->lfn; + while ((w = *lfn++) != 0) { /* Get an LFN char */ +#if !_LFN_UNICODE + w = ff_convert(w, 0); /* Unicode -> OEM conversion */ + if (!w) { i = 0; break; } /* Could not convert, no LFN */ + if (_DF1S && w >= 0x100) /* Put 1st byte if it is a DBC */ + tp[i++] = (XCHAR)(w >> 8); +#endif + if (i >= fno->lfsize - 1) { i = 0; break; } /* Buffer overrun, no LFN */ + tp[i++] = (XCHAR)w; + } + } + tp[i] = 0; /* Terminator */ + } +#endif +} +#endif /* _FS_MINIMIZE <= 1 */ + + + + +/*-----------------------------------------------------------------------*/ +/* Follow a file path */ +/*-----------------------------------------------------------------------*/ + +static +FRESULT follow_path ( /* FR_OK(0): successful, !=0: error code */ + DIR *dj, /* Directory object to return last directory and found object */ + const XCHAR *path /* Full-path string to find a file or directory */ +) +{ + FRESULT res; + BYTE *dir, last; + + + while (!_USE_LFN && *path == ' ') path++; /* Skip leading spaces */ +#if _FS_RPATH + if (*path == '/' || *path == '\\') { /* There is a heading separator */ + path++; dj->sclust = 0; /* Strip it and start from the root dir */ + } else { /* No heading saparator */ + dj->sclust = dj->fs->cdir; /* Start from the current dir */ + } +#else + if (*path == '/' || *path == '\\') /* Strip heading separator if exist */ + path++; + dj->sclust = 0; /* Start from the root dir */ +#endif + + if ((UINT)*path < ' ') { /* Null path means the start directory itself */ + res = dir_seek(dj, 0); + dj->dir = NULL; + + } else { /* Follow path */ + for (;;) { + res = create_name(dj, &path); /* Get a segment */ + if (res != FR_OK) break; + res = dir_find(dj); /* Find it */ + last = *(dj->fn+NS) & NS_LAST; + if (res != FR_OK) { /* Could not find the object */ + if (res == FR_NO_FILE && !last) + res = FR_NO_PATH; + break; + } + if (last) break; /* Last segment match. Function completed. */ + dir = dj->dir; /* There is next segment. Follow the sub directory */ + if (!(dir[DIR_Attr] & AM_DIR)) { /* Cannot follow because it is a file */ + res = FR_NO_PATH; break; + } + dj->sclust = ((DWORD)LD_WORD(dir+DIR_FstClusHI) << 16) | LD_WORD(dir+DIR_FstClusLO); + } + } + + return res; +} + + + + +/*-----------------------------------------------------------------------*/ +/* Load boot record and check if it is an FAT boot record */ +/*-----------------------------------------------------------------------*/ + +static +BYTE check_fs ( /* 0:The FAT boot record, 1:Valid boot record but not an FAT, 2:Not a boot record, 3:Error */ + FATFS *fs, /* File system object */ + DWORD sect /* Sector# (lba) to check if it is an FAT boot record or not */ +) +{ + if (disk_read(fs->drive, fs->win, sect, 1) != RES_OK) /* Load boot record */ + return 3; + if (LD_WORD(&fs->win[BS_55AA]) != 0xAA55) /* Check record signature (always placed at offset 510 even if the sector size is >512) */ + return 2; + + if ((LD_DWORD(&fs->win[BS_FilSysType]) & 0xFFFFFF) == 0x544146) /* Check "FAT" string */ + return 0; + if ((LD_DWORD(&fs->win[BS_FilSysType32]) & 0xFFFFFF) == 0x544146) + return 0; + + return 1; +} + + + + +/*-----------------------------------------------------------------------*/ +/* Make sure that the file system is valid */ +/*-----------------------------------------------------------------------*/ + + +FRESULT chk_mounted ( /* FR_OK(0): successful, !=0: any error occured */ + const XCHAR **path, /* Pointer to pointer to the path name (drive number) */ + FATFS **rfs, /* Pointer to pointer to the found file system object */ + BYTE chk_wp /* !=0: Check media write protection for write access */ +) +{ + BYTE fmt, *tbl; + UINT vol; + DSTATUS stat; + DWORD bsect, fsize, tsect, mclst; + const XCHAR *p = *path; + FATFS *fs; + + /* Get logical drive number from the path name */ + vol = p[0] - '0'; /* Is there a drive number? */ + if (vol <= 9 && p[1] == ':') { /* Found a drive number, get and strip it */ + p += 2; *path = p; /* Return pointer to the path name */ + } else { /* No drive number is given */ +#if _FS_RPATH + vol = Drive; /* Use current drive */ +#else + vol = 0; /* Use drive 0 */ +#endif + } + + /* Check if the logical drive is valid or not */ + if (vol >= _DRIVES) /* Is the drive number valid? */ + return FR_INVALID_DRIVE; + *rfs = fs = FatFs[vol]; /* Returen pointer to the corresponding file system object */ + if (!fs) return FR_NOT_ENABLED; /* Is the file system object available? */ + + ENTER_FF(fs); /* Lock file system */ + + if (fs->fs_type) { /* If the logical drive has been mounted */ + stat = disk_status(fs->drive); + if (!(stat & STA_NOINIT)) { /* and the physical drive is kept initialized (has not been changed), */ +#if !_FS_READONLY + if (chk_wp && (stat & STA_PROTECT)) /* Check write protection if needed */ + return FR_WRITE_PROTECTED; +#endif + return FR_OK; /* The file system object is valid */ + } + } + + /* The logical drive must be mounted. Following code attempts to mount the volume */ + + fs->fs_type = 0; /* Clear the file system object */ + fs->drive = (BYTE)LD2PD(vol); /* Bind the logical drive and a physical drive */ + stat = disk_initialize(fs->drive); /* Initialize low level disk I/O layer */ + if (stat & STA_NOINIT) /* Check if the drive is ready */ + return FR_NOT_READY; +#if _MAX_SS != 512 /* Get disk sector size if needed */ + if (disk_ioctl(fs->drive, GET_SECTOR_SIZE, &SS(fs)) != RES_OK || SS(fs) > _MAX_SS) + return FR_NO_FILESYSTEM; +#endif +#if !_FS_READONLY + if (chk_wp && (stat & STA_PROTECT)) /* Check disk write protection if needed */ + return FR_WRITE_PROTECTED; +#endif + /* Search FAT partition on the drive */ + fmt = check_fs(fs, bsect = 0); /* Check sector 0 as an SFD format */ + if (fmt == 1) { /* Not an FAT boot record, it may be patitioned */ + /* Check a partition listed in top of the partition table */ + tbl = &fs->win[MBR_Table + LD2PT(vol) * 16]; /* Partition table */ + if (tbl[4]) { /* Is the partition existing? */ + bsect = LD_DWORD(&tbl[8]); /* Partition offset in LBA */ + fmt = check_fs(fs, bsect); /* Check the partition */ + } + } + if (fmt == 3) return FR_DISK_ERR; + if (fmt || LD_WORD(fs->win+BPB_BytsPerSec) != SS(fs)) /* No valid FAT patition is found */ + return FR_NO_FILESYSTEM; + + /* Initialize the file system object */ + fsize = LD_WORD(fs->win+BPB_FATSz16); /* Number of sectors per FAT */ + if (!fsize) fsize = LD_DWORD(fs->win+BPB_FATSz32); + fs->sects_fat = fsize; + fs->n_fats = fs->win[BPB_NumFATs]; /* Number of FAT copies */ + fsize *= fs->n_fats; /* (Number of sectors in FAT area) */ + fs->fatbase = bsect + LD_WORD(fs->win+BPB_RsvdSecCnt); /* FAT start sector (lba) */ + fs->csize = fs->win[BPB_SecPerClus]; /* Number of sectors per cluster */ + fs->n_rootdir = LD_WORD(fs->win+BPB_RootEntCnt); /* Nmuber of root directory entries */ + tsect = LD_WORD(fs->win+BPB_TotSec16); /* Number of sectors on the volume */ + if (!tsect) tsect = LD_DWORD(fs->win+BPB_TotSec32); + fs->max_clust = mclst = (tsect /* Last cluster# + 1 (Number of clusters + 2) */ + - LD_WORD(fs->win+BPB_RsvdSecCnt) - fsize - fs->n_rootdir / (SS(fs)/32) + ) / fs->csize + 2; + + fmt = FS_FAT12; /* Determine the FAT sub type */ + if (mclst >= 0xFF7) fmt = FS_FAT16; /* Number of clusters >= 0xFF5 */ + if (mclst >= 0xFFF7) fmt = FS_FAT32; /* Number of clusters >= 0xFFF5 */ + + if (fmt == FS_FAT32) + fs->dirbase = LD_DWORD(fs->win+BPB_RootClus); /* Root directory start cluster */ + else + fs->dirbase = fs->fatbase + fsize; /* Root directory start sector (lba) */ + fs->database = fs->fatbase + fsize + fs->n_rootdir / (SS(fs)/32); /* Data start sector (lba) */ + +#if !_FS_READONLY + /* Initialize allocation information */ + fs->free_clust = 0xFFFFFFFF; + fs->wflag = 0; + /* Get fsinfo if needed */ + if (fmt == FS_FAT32) { + fs->fsi_flag = 0; + fs->fsi_sector = bsect + LD_WORD(fs->win+BPB_FSInfo); + if (disk_read(fs->drive, fs->win, fs->fsi_sector, 1) == RES_OK && + LD_WORD(fs->win+BS_55AA) == 0xAA55 && + LD_DWORD(fs->win+FSI_LeadSig) == 0x41615252 && + LD_DWORD(fs->win+FSI_StrucSig) == 0x61417272) { + fs->last_clust = LD_DWORD(fs->win+FSI_Nxt_Free); + fs->free_clust = LD_DWORD(fs->win+FSI_Free_Count); + } + } +#endif + fs->fs_type = fmt; /* FAT sub-type */ + fs->winsect = 0; /* Invalidate sector cache */ +#if _FS_RPATH + fs->cdir = 0; /* Current directory (root dir) */ +#endif + fs->id = ++Fsid; /* File system mount ID */ + + return FR_OK; +} + + + + +/*-----------------------------------------------------------------------*/ +/* Check if the file/dir object is valid or not */ +/*-----------------------------------------------------------------------*/ + +static +FRESULT validate ( /* FR_OK(0): The object is valid, !=0: Invalid */ + FATFS *fs, /* Pointer to the file system object */ + WORD id /* Member id of the target object to be checked */ +) +{ + if (!fs || !fs->fs_type || fs->id != id) + return FR_INVALID_OBJECT; + + ENTER_FF(fs); /* Lock file system */ + + if (disk_status(fs->drive) & STA_NOINIT) + return FR_NOT_READY; + + return FR_OK; +} + + + + +/*-------------------------------------------------------------------------- + + Public Functions + +--------------------------------------------------------------------------*/ + + + +/*-----------------------------------------------------------------------*/ +/* Mount/Unmount a Locical Drive */ +/*-----------------------------------------------------------------------*/ + +FRESULT f_mount ( + BYTE vol, /* Logical drive number to be mounted/unmounted */ + FATFS *fs /* Pointer to new file system object (NULL for unmount)*/ +) +{ + FATFS *rfs; + + + if (vol >= _DRIVES) /* Check if the drive number is valid */ + return FR_INVALID_DRIVE; + rfs = FatFs[vol]; /* Get current fs object */ + + if (rfs) { +#if _FS_REENTRANT /* Discard sync object of the current volume */ + if (!ff_del_syncobj(rfs->sobj)) return FR_INT_ERR; +#endif + rfs->fs_type = 0; /* Clear old fs object */ + } + + if (fs) { + fs->fs_type = 0; /* Clear new fs object */ +#if _FS_REENTRANT /* Create sync object for the new volume */ + if (!ff_cre_syncobj(vol, &fs->sobj)) return FR_INT_ERR; +#endif + } + FatFs[vol] = fs; /* Register new fs object */ + + return FR_OK; +} + + + + +/*-----------------------------------------------------------------------*/ +/* Open or Create a File */ +/*-----------------------------------------------------------------------*/ + +FRESULT f_open ( + FIL *fp, /* Pointer to the blank file object */ + const XCHAR *path, /* Pointer to the file name */ + BYTE mode /* Access mode and file open mode flags */ +) +{ + FRESULT res; + DIR dj; + NAMEBUF(sfn, lfn); + BYTE *dir; + + + fp->fs = NULL; /* Clear file object */ +#if !_FS_READONLY + mode &= (FA_READ | FA_WRITE | FA_CREATE_ALWAYS | FA_OPEN_ALWAYS | FA_CREATE_NEW); + res = chk_mounted(&path, &dj.fs, (BYTE)(mode & (FA_WRITE | FA_CREATE_ALWAYS | FA_OPEN_ALWAYS | FA_CREATE_NEW))); +#else + mode &= FA_READ; + res = chk_mounted(&path, &dj.fs, 0); +#endif + if (res != FR_OK) LEAVE_FF(dj.fs, res); + INITBUF(dj, sfn, lfn); + res = follow_path(&dj, path); /* Follow the file path */ + +#if !_FS_READONLY + /* Create or Open a file */ + if (mode & (FA_CREATE_ALWAYS | FA_OPEN_ALWAYS | FA_CREATE_NEW)) { + DWORD ps, cl; + + if (res != FR_OK) { /* No file, create new */ + if (res == FR_NO_FILE) /* There is no file to open, create a new entry */ + res = dir_register(&dj); + if (res != FR_OK) LEAVE_FF(dj.fs, res); + mode |= FA_CREATE_ALWAYS; + dir = dj.dir; /* Created entry (SFN entry) */ + } + else { /* Any object is already existing */ + if (mode & FA_CREATE_NEW) /* Cannot create new */ + LEAVE_FF(dj.fs, FR_EXIST); + dir = dj.dir; + if (!dir || (dir[DIR_Attr] & (AM_RDO | AM_DIR))) /* Cannot overwrite it (R/O or DIR) */ + LEAVE_FF(dj.fs, FR_DENIED); + if (mode & FA_CREATE_ALWAYS) { /* Resize it to zero on over write mode */ + cl = ((DWORD)LD_WORD(dir+DIR_FstClusHI) << 16) | LD_WORD(dir+DIR_FstClusLO); /* Get start cluster */ + ST_WORD(dir+DIR_FstClusHI, 0); /* cluster = 0 */ + ST_WORD(dir+DIR_FstClusLO, 0); + ST_DWORD(dir+DIR_FileSize, 0); /* size = 0 */ + dj.fs->wflag = 1; + ps = dj.fs->winsect; /* Remove the cluster chain */ + if (cl) { + res = remove_chain(dj.fs, cl); + if (res) LEAVE_FF(dj.fs, res); + dj.fs->last_clust = cl - 1; /* Reuse the cluster hole */ + } + res = move_window(dj.fs, ps); + if (res != FR_OK) LEAVE_FF(dj.fs, res); + } + } + if (mode & FA_CREATE_ALWAYS) { + dir[DIR_Attr] = 0; /* Reset attribute */ + ps = get_fattime(); + ST_DWORD(dir+DIR_CrtTime, ps); /* Created time */ + dj.fs->wflag = 1; + mode |= FA__WRITTEN; /* Set file changed flag */ + } + } + /* Open an existing file */ + else { +#endif /* !_FS_READONLY */ + if (res != FR_OK) LEAVE_FF(dj.fs, res); /* Follow failed */ + dir = dj.dir; + if (!dir || (dir[DIR_Attr] & AM_DIR)) /* It is a directory */ + LEAVE_FF(dj.fs, FR_NO_FILE); +#if !_FS_READONLY + if ((mode & FA_WRITE) && (dir[DIR_Attr] & AM_RDO)) /* R/O violation */ + LEAVE_FF(dj.fs, FR_DENIED); + } + fp->dir_sect = dj.fs->winsect; /* Pointer to the directory entry */ + fp->dir_ptr = dj.dir; +#endif + fp->flag = mode; /* File access mode */ + fp->org_clust = /* File start cluster */ + ((DWORD)LD_WORD(dir+DIR_FstClusHI) << 16) | LD_WORD(dir+DIR_FstClusLO); + fp->fsize = LD_DWORD(dir+DIR_FileSize); /* File size */ + fp->fptr = 0; fp->csect = 255; /* File pointer */ + fp->dsect = 0; + fp->fs = dj.fs; fp->id = dj.fs->id; /* Owner file system object of the file */ + + LEAVE_FF(dj.fs, FR_OK); +} + + + + +/*-----------------------------------------------------------------------*/ +/* Read File */ +/*-----------------------------------------------------------------------*/ + +FRESULT f_read ( + FIL *fp, /* Pointer to the file object */ + void *buff, /* Pointer to data buffer */ + UINT btr, /* Number of bytes to read */ + UINT *br /* Pointer to number of bytes read */ +) +{ + FRESULT res; + DWORD clst, sect, remain; + UINT rcnt, cc; + BYTE *rbuff = buff; + + + *br = 0; /* Initialize bytes read */ + + res = validate(fp->fs, fp->id); /* Check validity of the object */ + if (res != FR_OK) LEAVE_FF(fp->fs, res); + if (fp->flag & FA__ERROR) /* Check abort flag */ + LEAVE_FF(fp->fs, FR_INT_ERR); + if (!(fp->flag & FA_READ)) /* Check access mode */ + LEAVE_FF(fp->fs, FR_DENIED); + remain = fp->fsize - fp->fptr; + if (btr > remain) btr = (UINT)remain; /* Truncate btr by remaining bytes */ + + for ( ; btr; /* Repeat until all data transferred */ + rbuff += rcnt, fp->fptr += rcnt, *br += rcnt, btr -= rcnt) { + if ((fp->fptr % SS(fp->fs)) == 0) { /* On the sector boundary? */ + if (fp->csect >= fp->fs->csize) { /* On the cluster boundary? */ + clst = (fp->fptr == 0) ? /* On the top of the file? */ + fp->org_clust : get_fat(fp->fs, fp->curr_clust); + if (clst <= 1) ABORT(fp->fs, FR_INT_ERR); + if (clst == 0xFFFFFFFF) ABORT(fp->fs, FR_DISK_ERR); + fp->curr_clust = clst; /* Update current cluster */ + fp->csect = 0; /* Reset sector offset in the cluster */ + } + sect = clust2sect(fp->fs, fp->curr_clust); /* Get current sector */ + if (!sect) ABORT(fp->fs, FR_INT_ERR); + sect += fp->csect; + cc = btr / SS(fp->fs); /* When remaining bytes >= sector size, */ + if (cc) { /* Read maximum contiguous sectors directly */ + if (fp->csect + cc > fp->fs->csize) /* Clip at cluster boundary */ + cc = fp->fs->csize - fp->csect; + if (disk_read(fp->fs->drive, rbuff, sect, (BYTE)cc) != RES_OK) + ABORT(fp->fs, FR_DISK_ERR); +#if !_FS_READONLY && _FS_MINIMIZE <= 2 +#if _FS_TINY + if (fp->fs->wflag && fp->fs->winsect - sect < cc) /* Replace one of the read sectors with cached data if it contains a dirty sector */ + mem_cpy(rbuff + ((fp->fs->winsect - sect) * SS(fp->fs)), fp->fs->win, SS(fp->fs)); +#else + if ((fp->flag & FA__DIRTY) && fp->dsect - sect < cc) /* Replace one of the read sectors with cached data if it contains a dirty sector */ + mem_cpy(rbuff + ((fp->dsect - sect) * SS(fp->fs)), fp->buf, SS(fp->fs)); +#endif +#endif + fp->csect += (BYTE)cc; /* Next sector address in the cluster */ + rcnt = SS(fp->fs) * cc; /* Number of bytes transferred */ + continue; + } +#if !_FS_TINY +#if !_FS_READONLY + if (fp->flag & FA__DIRTY) { /* Write sector I/O buffer if needed */ + if (disk_write(fp->fs->drive, fp->buf, fp->dsect, 1) != RES_OK) + ABORT(fp->fs, FR_DISK_ERR); + fp->flag &= ~FA__DIRTY; + } +#endif + if (fp->dsect != sect) { /* Fill sector buffer with file data */ + if (disk_read(fp->fs->drive, fp->buf, sect, 1) != RES_OK) + ABORT(fp->fs, FR_DISK_ERR); + } +#endif + fp->dsect = sect; + fp->csect++; /* Next sector address in the cluster */ + } + rcnt = SS(fp->fs) - (fp->fptr % SS(fp->fs)); /* Get partial sector data from sector buffer */ + if (rcnt > btr) rcnt = btr; +#if _FS_TINY + if (move_window(fp->fs, fp->dsect)) /* Move sector window */ + ABORT(fp->fs, FR_DISK_ERR); + mem_cpy(rbuff, &fp->fs->win[fp->fptr % SS(fp->fs)], rcnt); /* Pick partial sector */ +#else + mem_cpy(rbuff, &fp->buf[fp->fptr % SS(fp->fs)], rcnt); /* Pick partial sector */ +#endif + } + + LEAVE_FF(fp->fs, FR_OK); +} + + + + +#if !_FS_READONLY +/*-----------------------------------------------------------------------*/ +/* Write File */ +/*-----------------------------------------------------------------------*/ + +FRESULT f_write ( + FIL *fp, /* Pointer to the file object */ + const void *buff, /* Pointer to the data to be written */ + UINT btw, /* Number of bytes to write */ + UINT *bw /* Pointer to number of bytes written */ +) +{ + FRESULT res; + DWORD clst, sect; + UINT wcnt, cc; + const BYTE *wbuff = buff; + + + *bw = 0; /* Initialize bytes written */ + + res = validate(fp->fs, fp->id); /* Check validity of the object */ + if (res != FR_OK) LEAVE_FF(fp->fs, res); + if (fp->flag & FA__ERROR) /* Check abort flag */ + LEAVE_FF(fp->fs, FR_INT_ERR); + if (!(fp->flag & FA_WRITE)) /* Check access mode */ + LEAVE_FF(fp->fs, FR_DENIED); + if (fp->fsize + btw < fp->fsize) btw = 0; /* File size cannot reach 4GB */ + + for ( ; btw; /* Repeat until all data transferred */ + wbuff += wcnt, fp->fptr += wcnt, *bw += wcnt, btw -= wcnt) { + if ((fp->fptr % SS(fp->fs)) == 0) { /* On the sector boundary? */ + if (fp->csect >= fp->fs->csize) { /* On the cluster boundary? */ + if (fp->fptr == 0) { /* On the top of the file? */ + clst = fp->org_clust; /* Follow from the origin */ + if (clst == 0) /* When there is no cluster chain, */ + fp->org_clust = clst = create_chain(fp->fs, 0); /* Create a new cluster chain */ + } else { /* Middle or end of the file */ + clst = create_chain(fp->fs, fp->curr_clust); /* Follow or streach cluster chain */ + } + if (clst == 0) break; /* Could not allocate a new cluster (disk full) */ + if (clst == 1) ABORT(fp->fs, FR_INT_ERR); + if (clst == 0xFFFFFFFF) ABORT(fp->fs, FR_DISK_ERR); + fp->curr_clust = clst; /* Update current cluster */ + fp->csect = 0; /* Reset sector address in the cluster */ + } +#if _FS_TINY + if (fp->fs->winsect == fp->dsect && move_window(fp->fs, 0)) /* Write back data buffer prior to following direct transfer */ + ABORT(fp->fs, FR_DISK_ERR); +#else + if (fp->flag & FA__DIRTY) { /* Write back data buffer prior to following direct transfer */ + if (disk_write(fp->fs->drive, fp->buf, fp->dsect, 1) != RES_OK) + ABORT(fp->fs, FR_DISK_ERR); + fp->flag &= ~FA__DIRTY; + } +#endif + sect = clust2sect(fp->fs, fp->curr_clust); /* Get current sector */ + if (!sect) ABORT(fp->fs, FR_INT_ERR); + sect += fp->csect; + cc = btw / SS(fp->fs); /* When remaining bytes >= sector size, */ + if (cc) { /* Write maximum contiguous sectors directly */ + if (fp->csect + cc > fp->fs->csize) /* Clip at cluster boundary */ + cc = fp->fs->csize - fp->csect; + if (disk_write(fp->fs->drive, wbuff, sect, (BYTE)cc) != RES_OK) + ABORT(fp->fs, FR_DISK_ERR); +#if _FS_TINY + if (fp->fs->winsect - sect < cc) { /* Refill sector cache if it gets dirty by the direct write */ + mem_cpy(fp->fs->win, wbuff + ((fp->fs->winsect - sect) * SS(fp->fs)), SS(fp->fs)); + fp->fs->wflag = 0; + } +#else + if (fp->dsect - sect < cc) { /* Refill sector cache if it gets dirty by the direct write */ + mem_cpy(fp->buf, wbuff + ((fp->dsect - sect) * SS(fp->fs)), SS(fp->fs)); + fp->flag &= ~FA__DIRTY; + } +#endif + fp->csect += (BYTE)cc; /* Next sector address in the cluster */ + wcnt = SS(fp->fs) * cc; /* Number of bytes transferred */ + continue; + } +#if _FS_TINY + if (fp->fptr >= fp->fsize) { /* Avoid silly buffer filling at growing edge */ + if (move_window(fp->fs, 0)) ABORT(fp->fs, FR_DISK_ERR); + fp->fs->winsect = sect; + } +#else + if (fp->dsect != sect) { /* Fill sector buffer with file data */ + if (fp->fptr < fp->fsize && + disk_read(fp->fs->drive, fp->buf, sect, 1) != RES_OK) + ABORT(fp->fs, FR_DISK_ERR); + } +#endif + fp->dsect = sect; + fp->csect++; /* Next sector address in the cluster */ + } + wcnt = SS(fp->fs) - (fp->fptr % SS(fp->fs)); /* Put partial sector into file I/O buffer */ + if (wcnt > btw) wcnt = btw; +#if _FS_TINY + if (move_window(fp->fs, fp->dsect)) /* Move sector window */ + ABORT(fp->fs, FR_DISK_ERR); + mem_cpy(&fp->fs->win[fp->fptr % SS(fp->fs)], wbuff, wcnt); /* Fit partial sector */ + fp->fs->wflag = 1; +#else + mem_cpy(&fp->buf[fp->fptr % SS(fp->fs)], wbuff, wcnt); /* Fit partial sector */ + fp->flag |= FA__DIRTY; +#endif + } + + if (fp->fptr > fp->fsize) fp->fsize = fp->fptr; /* Update file size if needed */ + fp->flag |= FA__WRITTEN; /* Set file changed flag */ + + LEAVE_FF(fp->fs, FR_OK); +} + + + + +/*-----------------------------------------------------------------------*/ +/* Synchronize the File Object */ +/*-----------------------------------------------------------------------*/ + +FRESULT f_sync ( + FIL *fp /* Pointer to the file object */ +) +{ + FRESULT res; + DWORD tim; + BYTE *dir; + + + res = validate(fp->fs, fp->id); /* Check validity of the object */ + if (res == FR_OK) { + if (fp->flag & FA__WRITTEN) { /* Has the file been written? */ +#if !_FS_TINY /* Write-back dirty buffer */ + if (fp->flag & FA__DIRTY) { + if (disk_write(fp->fs->drive, fp->buf, fp->dsect, 1) != RES_OK) + LEAVE_FF(fp->fs, FR_DISK_ERR); + fp->flag &= ~FA__DIRTY; + } +#endif + /* Update the directory entry */ + res = move_window(fp->fs, fp->dir_sect); + if (res == FR_OK) { + dir = fp->dir_ptr; + dir[DIR_Attr] |= AM_ARC; /* Set archive bit */ + ST_DWORD(dir+DIR_FileSize, fp->fsize); /* Update file size */ + ST_WORD(dir+DIR_FstClusLO, fp->org_clust); /* Update start cluster */ + ST_WORD(dir+DIR_FstClusHI, fp->org_clust >> 16); + tim = get_fattime(); /* Updated time */ + ST_DWORD(dir+DIR_WrtTime, tim); + fp->flag &= ~FA__WRITTEN; + fp->fs->wflag = 1; + res = sync(fp->fs); + } + } + } + + LEAVE_FF(fp->fs, res); +} + +#endif /* !_FS_READONLY */ + + + + +/*-----------------------------------------------------------------------*/ +/* Close File */ +/*-----------------------------------------------------------------------*/ + +FRESULT f_close ( + FIL *fp /* Pointer to the file object to be closed */ +) +{ + FRESULT res; + + +#if _FS_READONLY + res = validate(fp->fs, fp->id); + if (res == FR_OK) fp->fs = NULL; + LEAVE_FF(fp->fs, res); +#else + res = f_sync(fp); + if (res == FR_OK) fp->fs = NULL; + return res; +#endif +} + + + + +/*-----------------------------------------------------------------------*/ +/* Change Current Drive/Directory */ +/*-----------------------------------------------------------------------*/ + +#if _FS_RPATH + +FRESULT f_chdrive ( + BYTE drv /* Drive number */ +) +{ + if (drv >= _DRIVES) return FR_INVALID_DRIVE; + + Drive = drv; + + return FR_OK; +} + + + + +FRESULT f_chdir ( + const XCHAR *path /* Pointer to the directory path */ +) +{ + FRESULT res; + DIR dj; + NAMEBUF(sfn, lfn); + BYTE *dir; + + + res = chk_mounted(&path, &dj.fs, 0); + if (res == FR_OK) { + INITBUF(dj, sfn, lfn); + res = follow_path(&dj, path); /* Follow the file path */ + if (res == FR_OK) { /* Follow completed */ + dir = dj.dir; /* Pointer to the entry */ + if (!dir) { + dj.fs->cdir = 0; /* No entry (root dir) */ + } else { + if (dir[DIR_Attr] & AM_DIR) /* Reached to the dir */ + dj.fs->cdir = ((DWORD)LD_WORD(dir+DIR_FstClusHI) << 16) | LD_WORD(dir+DIR_FstClusLO); + else + res = FR_NO_PATH; /* Could not reach the dir (it is a file) */ + } + } + if (res == FR_NO_FILE) res = FR_NO_PATH; + } + + LEAVE_FF(dj.fs, res); +} + +#endif + + + +#if _FS_MINIMIZE <= 2 +/*-----------------------------------------------------------------------*/ +/* Seek File R/W Pointer */ +/*-----------------------------------------------------------------------*/ + +FRESULT f_lseek ( + FIL *fp, /* Pointer to the file object */ + DWORD ofs /* File pointer from top of file */ +) +{ + FRESULT res; + DWORD clst, bcs, nsect, ifptr; + + + res = validate(fp->fs, fp->id); /* Check validity of the object */ + if (res != FR_OK) LEAVE_FF(fp->fs, res); + if (fp->flag & FA__ERROR) /* Check abort flag */ + LEAVE_FF(fp->fs, FR_INT_ERR); + if (ofs > fp->fsize /* In read-only mode, clip offset with the file size */ +#if !_FS_READONLY + && !(fp->flag & FA_WRITE) +#endif + ) ofs = fp->fsize; + + ifptr = fp->fptr; + fp->fptr = nsect = 0; fp->csect = 255; + if (ofs > 0) { + bcs = (DWORD)fp->fs->csize * SS(fp->fs); /* Cluster size (byte) */ + if (ifptr > 0 && + (ofs - 1) / bcs >= (ifptr - 1) / bcs) { /* When seek to same or following cluster, */ + fp->fptr = (ifptr - 1) & ~(bcs - 1); /* start from the current cluster */ + ofs -= fp->fptr; + clst = fp->curr_clust; + } else { /* When seek to back cluster, */ + clst = fp->org_clust; /* start from the first cluster */ +#if !_FS_READONLY + if (clst == 0) { /* If no cluster chain, create a new chain */ + clst = create_chain(fp->fs, 0); + if (clst == 1) ABORT(fp->fs, FR_INT_ERR); + if (clst == 0xFFFFFFFF) ABORT(fp->fs, FR_DISK_ERR); + fp->org_clust = clst; + } +#endif + fp->curr_clust = clst; + } + if (clst != 0) { + while (ofs > bcs) { /* Cluster following loop */ +#if !_FS_READONLY + if (fp->flag & FA_WRITE) { /* Check if in write mode or not */ + clst = create_chain(fp->fs, clst); /* Force streached if in write mode */ + if (clst == 0) { /* When disk gets full, clip file size */ + ofs = bcs; break; + } + } else +#endif + clst = get_fat(fp->fs, clst); /* Follow cluster chain if not in write mode */ + if (clst == 0xFFFFFFFF) ABORT(fp->fs, FR_DISK_ERR); + if (clst <= 1 || clst >= fp->fs->max_clust) ABORT(fp->fs, FR_INT_ERR); + fp->curr_clust = clst; + fp->fptr += bcs; + ofs -= bcs; + } + fp->fptr += ofs; + fp->csect = (BYTE)(ofs / SS(fp->fs)); /* Sector offset in the cluster */ + if (ofs % SS(fp->fs)) { + nsect = clust2sect(fp->fs, clst); /* Current sector */ + if (!nsect) ABORT(fp->fs, FR_INT_ERR); + nsect += fp->csect; + fp->csect++; + } + } + } + if (fp->fptr % SS(fp->fs) && nsect != fp->dsect) { +#if !_FS_TINY +#if !_FS_READONLY + if (fp->flag & FA__DIRTY) { /* Write-back dirty buffer if needed */ + if (disk_write(fp->fs->drive, fp->buf, fp->dsect, 1) != RES_OK) + ABORT(fp->fs, FR_DISK_ERR); + fp->flag &= ~FA__DIRTY; + } +#endif + if (disk_read(fp->fs->drive, fp->buf, nsect, 1) != RES_OK) + ABORT(fp->fs, FR_DISK_ERR); +#endif + fp->dsect = nsect; + } +#if !_FS_READONLY + if (fp->fptr > fp->fsize) { /* Set changed flag if the file size is extended */ + fp->fsize = fp->fptr; + fp->flag |= FA__WRITTEN; + } +#endif + + LEAVE_FF(fp->fs, res); +} + + + + +#if _FS_MINIMIZE <= 1 +/*-----------------------------------------------------------------------*/ +/* Create a Directroy Object */ +/*-----------------------------------------------------------------------*/ + +FRESULT f_opendir ( + DIR *dj, /* Pointer to directory object to create */ + const XCHAR *path /* Pointer to the directory path */ +) +{ + FRESULT res; + NAMEBUF(sfn, lfn); + BYTE *dir; + + + res = chk_mounted(&path, &dj->fs, 0); + if (res == FR_OK) { + INITBUF((*dj), sfn, lfn); + res = follow_path(dj, path); /* Follow the path to the directory */ + if (res == FR_OK) { /* Follow completed */ + dir = dj->dir; + if (dir) { /* It is not the root dir */ + if (dir[DIR_Attr] & AM_DIR) { /* The object is a directory */ + dj->sclust = ((DWORD)LD_WORD(dir+DIR_FstClusHI) << 16) | LD_WORD(dir+DIR_FstClusLO); + } else { /* The object is not a directory */ + res = FR_NO_PATH; + } + } + if (res == FR_OK) { + dj->id = dj->fs->id; + res = dir_seek(dj, 0); /* Rewind dir */ + } + } + if (res == FR_NO_FILE) res = FR_NO_PATH; + } + + LEAVE_FF(dj->fs, res); +} + + + + +/*-----------------------------------------------------------------------*/ +/* Read Directory Entry in Sequense */ +/*-----------------------------------------------------------------------*/ + +FRESULT f_readdir ( + DIR *dj, /* Pointer to the open directory object */ + FILINFO *fno /* Pointer to file information to return */ +) +{ + FRESULT res; + NAMEBUF(sfn, lfn); + + + res = validate(dj->fs, dj->id); /* Check validity of the object */ + if (res == FR_OK) { + INITBUF((*dj), sfn, lfn); + if (!fno) { + res = dir_seek(dj, 0); + } else { + res = dir_read(dj); + if (res == FR_NO_FILE) { + dj->sect = 0; + res = FR_OK; + } + if (res == FR_OK) { /* A valid entry is found */ + get_fileinfo(dj, fno); /* Get the object information */ + res = dir_next(dj, FALSE); /* Increment index for next */ + if (res == FR_NO_FILE) { + dj->sect = 0; + res = FR_OK; + } + } + } + } + + LEAVE_FF(dj->fs, res); +} + + + +#if _FS_MINIMIZE == 0 +/*-----------------------------------------------------------------------*/ +/* Get File Status */ +/*-----------------------------------------------------------------------*/ + +FRESULT f_stat ( + const XCHAR *path, /* Pointer to the file path */ + FILINFO *fno /* Pointer to file information to return */ +) +{ + FRESULT res; + DIR dj; + NAMEBUF(sfn, lfn); + + + res = chk_mounted(&path, &dj.fs, 0); + if (res == FR_OK) { + INITBUF(dj, sfn, lfn); + res = follow_path(&dj, path); /* Follow the file path */ + if (res == FR_OK) { /* Follwo completed */ + if (dj.dir) /* Found an object */ + get_fileinfo(&dj, fno); + else /* It is root dir */ + res = FR_INVALID_NAME; + } + } + + LEAVE_FF(dj.fs, res); +} + + + +#if !_FS_READONLY +/*-----------------------------------------------------------------------*/ +/* Get Number of Free Clusters */ +/*-----------------------------------------------------------------------*/ + +FRESULT f_getfree ( + const XCHAR *path, /* Pointer to the logical drive number (root dir) */ + DWORD *nclst, /* Pointer to the variable to return number of free clusters */ + FATFS **fatfs /* Pointer to pointer to corresponding file system object to return */ +) +{ + FRESULT res; + DWORD n, clst, sect, stat; + UINT i; + BYTE fat, *p; + + + /* Get drive number */ + res = chk_mounted(&path, fatfs, 0); + if (res != FR_OK) LEAVE_FF(*fatfs, res); + + /* If number of free cluster is valid, return it without cluster scan. */ + if ((*fatfs)->free_clust <= (*fatfs)->max_clust - 2) { + *nclst = (*fatfs)->free_clust; + LEAVE_FF(*fatfs, FR_OK); + } + + /* Get number of free clusters */ + fat = (*fatfs)->fs_type; + n = 0; + if (fat == FS_FAT12) { + clst = 2; + do { + stat = get_fat(*fatfs, clst); + if (stat == 0xFFFFFFFF) LEAVE_FF(*fatfs, FR_DISK_ERR); + if (stat == 1) LEAVE_FF(*fatfs, FR_INT_ERR); + if (stat == 0) n++; + } while (++clst < (*fatfs)->max_clust); + } else { + clst = (*fatfs)->max_clust; + sect = (*fatfs)->fatbase; + i = 0; p = 0; + do { + if (!i) { + res = move_window(*fatfs, sect++); + if (res != FR_OK) + LEAVE_FF(*fatfs, res); + p = (*fatfs)->win; + i = SS(*fatfs); + } + if (fat == FS_FAT16) { + if (LD_WORD(p) == 0) n++; + p += 2; i -= 2; + } else { + if ((LD_DWORD(p) & 0x0FFFFFFF) == 0) n++; + p += 4; i -= 4; + } + } while (--clst); + } + (*fatfs)->free_clust = n; + if (fat == FS_FAT32) (*fatfs)->fsi_flag = 1; + *nclst = n; + + LEAVE_FF(*fatfs, FR_OK); +} + + + + +/*-----------------------------------------------------------------------*/ +/* Truncate File */ +/*-----------------------------------------------------------------------*/ + +FRESULT f_truncate ( + FIL *fp /* Pointer to the file object */ +) +{ + FRESULT res; + DWORD ncl; + + + res = validate(fp->fs, fp->id); /* Check validity of the object */ + if (res != FR_OK) LEAVE_FF(fp->fs, res); + if (fp->flag & FA__ERROR) /* Check abort flag */ + LEAVE_FF(fp->fs, FR_INT_ERR); + if (!(fp->flag & FA_WRITE)) /* Check access mode */ + LEAVE_FF(fp->fs, FR_DENIED); + + if (fp->fsize > fp->fptr) { + fp->fsize = fp->fptr; /* Set file size to current R/W point */ + fp->flag |= FA__WRITTEN; + if (fp->fptr == 0) { /* When set file size to zero, remove entire cluster chain */ + res = remove_chain(fp->fs, fp->org_clust); + fp->org_clust = 0; + } else { /* When truncate a part of the file, remove remaining clusters */ + ncl = get_fat(fp->fs, fp->curr_clust); + res = FR_OK; + if (ncl == 0xFFFFFFFF) res = FR_DISK_ERR; + if (ncl == 1) res = FR_INT_ERR; + if (res == FR_OK && ncl < fp->fs->max_clust) { + res = put_fat(fp->fs, fp->curr_clust, 0x0FFFFFFF); + if (res == FR_OK) res = remove_chain(fp->fs, ncl); + } + } + } + if (res != FR_OK) fp->flag |= FA__ERROR; + + LEAVE_FF(fp->fs, res); +} + + + + +/*-----------------------------------------------------------------------*/ +/* Delete a File or Directory */ +/*-----------------------------------------------------------------------*/ + +FRESULT f_unlink ( + const XCHAR *path /* Pointer to the file or directory path */ +) +{ + FRESULT res; + DIR dj, sdj; + NAMEBUF(sfn, lfn); + BYTE *dir; + DWORD dclst; + + + res = chk_mounted(&path, &dj.fs, 1); + if (res != FR_OK) LEAVE_FF(dj.fs, res); + + INITBUF(dj, sfn, lfn); + res = follow_path(&dj, path); /* Follow the file path */ + if (_FS_RPATH && res == FR_OK && (dj.fn[NS] & NS_DOT)) + res = FR_INVALID_NAME; + if (res != FR_OK) LEAVE_FF(dj.fs, res); /* Follow failed */ + + dir = dj.dir; + if (!dir) /* Is it the root directory? */ + LEAVE_FF(dj.fs, FR_INVALID_NAME); + if (dir[DIR_Attr] & AM_RDO) /* Is it a R/O object? */ + LEAVE_FF(dj.fs, FR_DENIED); + dclst = ((DWORD)LD_WORD(dir+DIR_FstClusHI) << 16) | LD_WORD(dir+DIR_FstClusLO); + + if (dir[DIR_Attr] & AM_DIR) { /* It is a sub-directory */ + if (dclst < 2) LEAVE_FF(dj.fs, FR_INT_ERR); + mem_cpy(&sdj, &dj, sizeof(DIR)); /* Check if the sub-dir is empty or not */ + sdj.sclust = dclst; + res = dir_seek(&sdj, 2); + if (res != FR_OK) LEAVE_FF(dj.fs, res); + res = dir_read(&sdj); + if (res == FR_OK) res = FR_DENIED; /* Not empty sub-dir */ + if (res != FR_NO_FILE) LEAVE_FF(dj.fs, res); + } + + res = dir_remove(&dj); /* Remove directory entry */ + if (res == FR_OK) { + if (dclst) + res = remove_chain(dj.fs, dclst); /* Remove the cluster chain */ + if (res == FR_OK) res = sync(dj.fs); + } + + LEAVE_FF(dj.fs, res); +} + + + + +/*-----------------------------------------------------------------------*/ +/* Create a Directory */ +/*-----------------------------------------------------------------------*/ + +FRESULT f_mkdir ( + const XCHAR *path /* Pointer to the directory path */ +) +{ + FRESULT res; + DIR dj; + NAMEBUF(sfn, lfn); + BYTE *dir, n; + DWORD dsect, dclst, pclst, tim; + + + res = chk_mounted(&path, &dj.fs, 1); + if (res != FR_OK) LEAVE_FF(dj.fs, res); + + INITBUF(dj, sfn, lfn); + res = follow_path(&dj, path); /* Follow the file path */ + if (res == FR_OK) res = FR_EXIST; /* Any file or directory is already existing */ + if (_FS_RPATH && res == FR_NO_FILE && (dj.fn[NS] & NS_DOT)) + res = FR_INVALID_NAME; + if (res != FR_NO_FILE) /* Any error occured */ + LEAVE_FF(dj.fs, res); + + dclst = create_chain(dj.fs, 0); /* Allocate a new cluster for new directory table */ + res = FR_OK; + if (dclst == 0) res = FR_DENIED; + if (dclst == 1) res = FR_INT_ERR; + if (dclst == 0xFFFFFFFF) res = FR_DISK_ERR; + if (res == FR_OK) + res = move_window(dj.fs, 0); + if (res != FR_OK) LEAVE_FF(dj.fs, res); + dsect = clust2sect(dj.fs, dclst); + + dir = dj.fs->win; /* Initialize the new directory table */ + mem_set(dir, 0, SS(dj.fs)); + mem_set(dir+DIR_Name, ' ', 8+3); /* Create "." entry */ + dir[DIR_Name] = '.'; + dir[DIR_Attr] = AM_DIR; + tim = get_fattime(); + ST_DWORD(dir+DIR_WrtTime, tim); + ST_WORD(dir+DIR_FstClusLO, dclst); + ST_WORD(dir+DIR_FstClusHI, dclst >> 16); + mem_cpy(dir+32, dir, 32); /* Create ".." entry */ + dir[33] = '.'; + pclst = dj.sclust; + if (dj.fs->fs_type == FS_FAT32 && pclst == dj.fs->dirbase) + pclst = 0; + ST_WORD(dir+32+DIR_FstClusLO, pclst); + ST_WORD(dir+32+DIR_FstClusHI, pclst >> 16); + for (n = 0; n < dj.fs->csize; n++) { /* Write dot entries and clear left sectors */ + dj.fs->winsect = dsect++; + dj.fs->wflag = 1; + res = move_window(dj.fs, 0); + if (res) LEAVE_FF(dj.fs, res); + mem_set(dir, 0, SS(dj.fs)); + } + + res = dir_register(&dj); + if (res != FR_OK) { + remove_chain(dj.fs, dclst); + } else { + dir = dj.dir; + dir[DIR_Attr] = AM_DIR; /* Attribute */ + ST_DWORD(dir+DIR_WrtTime, tim); /* Crated time */ + ST_WORD(dir+DIR_FstClusLO, dclst); /* Table start cluster */ + ST_WORD(dir+DIR_FstClusHI, dclst >> 16); + dj.fs->wflag = 1; + res = sync(dj.fs); + } + + LEAVE_FF(dj.fs, res); +} + + + + +/*-----------------------------------------------------------------------*/ +/* Change File Attribute */ +/*-----------------------------------------------------------------------*/ + +FRESULT f_chmod ( + const XCHAR *path, /* Pointer to the file path */ + BYTE value, /* Attribute bits */ + BYTE mask /* Attribute mask to change */ +) +{ + FRESULT res; + DIR dj; + NAMEBUF(sfn, lfn); + BYTE *dir; + + + res = chk_mounted(&path, &dj.fs, 1); + if (res == FR_OK) { + INITBUF(dj, sfn, lfn); + res = follow_path(&dj, path); /* Follow the file path */ + if (_FS_RPATH && res == FR_OK && (dj.fn[NS] & NS_DOT)) + res = FR_INVALID_NAME; + if (res == FR_OK) { + dir = dj.dir; + if (!dir) { /* Is it a root directory? */ + res = FR_INVALID_NAME; + } else { /* File or sub directory */ + mask &= AM_RDO|AM_HID|AM_SYS|AM_ARC; /* Valid attribute mask */ + dir[DIR_Attr] = (value & mask) | (dir[DIR_Attr] & (BYTE)~mask); /* Apply attribute change */ + dj.fs->wflag = 1; + res = sync(dj.fs); + } + } + } + + LEAVE_FF(dj.fs, res); +} + + + + +/*-----------------------------------------------------------------------*/ +/* Change Timestamp */ +/*-----------------------------------------------------------------------*/ + +FRESULT f_utime ( + const XCHAR *path, /* Pointer to the file/directory name */ + const FILINFO *fno /* Pointer to the timestamp to be set */ +) +{ + FRESULT res; + DIR dj; + NAMEBUF(sfn, lfn); + BYTE *dir; + + + res = chk_mounted(&path, &dj.fs, 1); + if (res == FR_OK) { + INITBUF(dj, sfn, lfn); + res = follow_path(&dj, path); /* Follow the file path */ + if (_FS_RPATH && res == FR_OK && (dj.fn[NS] & NS_DOT)) + res = FR_INVALID_NAME; + if (res == FR_OK) { + dir = dj.dir; + if (!dir) { /* Root directory */ + res = FR_INVALID_NAME; + } else { /* File or sub-directory */ + ST_WORD(dir+DIR_WrtTime, fno->ftime); + ST_WORD(dir+DIR_WrtDate, fno->fdate); + dj.fs->wflag = 1; + res = sync(dj.fs); + } + } + } + + LEAVE_FF(dj.fs, res); +} + + + + +/*-----------------------------------------------------------------------*/ +/* Rename File/Directory */ +/*-----------------------------------------------------------------------*/ + +FRESULT f_rename ( + const XCHAR *path_old, /* Pointer to the old name */ + const XCHAR *path_new /* Pointer to the new name */ +) +{ + FRESULT res; + DIR dj_old, dj_new; + NAMEBUF(sfn, lfn); + BYTE buf[21], *dir; + DWORD dw; + + + INITBUF(dj_old, sfn, lfn); + res = chk_mounted(&path_old, &dj_old.fs, 1); + if (res == FR_OK) { + dj_new.fs = dj_old.fs; + res = follow_path(&dj_old, path_old); /* Check old object */ + if (_FS_RPATH && res == FR_OK && (dj_old.fn[NS] & NS_DOT)) + res = FR_INVALID_NAME; + } + if (res != FR_OK) LEAVE_FF(dj_old.fs, res); /* The old object is not found */ + + if (!dj_old.dir) LEAVE_FF(dj_old.fs, FR_NO_FILE); /* Is root dir? */ + mem_cpy(buf, dj_old.dir+DIR_Attr, 21); /* Save the object information */ + + mem_cpy(&dj_new, &dj_old, sizeof(DIR)); + res = follow_path(&dj_new, path_new); /* Check new object */ + if (res == FR_OK) res = FR_EXIST; /* The new object name is already existing */ + if (res == FR_NO_FILE) { /* Is it a valid path and no name collision? */ + res = dir_register(&dj_new); /* Register the new object */ + if (res == FR_OK) { + dir = dj_new.dir; /* Copy object information into new entry */ + mem_cpy(dir+13, buf+2, 19); + dir[DIR_Attr] = buf[0] | AM_ARC; + dj_old.fs->wflag = 1; + if (dir[DIR_Attr] & AM_DIR) { /* Update .. entry in the directory if needed */ + dw = clust2sect(dj_new.fs, (DWORD)LD_WORD(dir+DIR_FstClusHI) | LD_WORD(dir+DIR_FstClusLO)); + if (!dw) { + res = FR_INT_ERR; + } else { + res = move_window(dj_new.fs, dw); + dir = dj_new.fs->win+32; + if (res == FR_OK && dir[1] == '.') { + dw = (dj_new.fs->fs_type == FS_FAT32 && dj_new.sclust == dj_new.fs->dirbase) ? 0 : dj_new.sclust; + ST_WORD(dir+DIR_FstClusLO, dw); + ST_WORD(dir+DIR_FstClusHI, dw >> 16); + dj_new.fs->wflag = 1; + } + } + } + if (res == FR_OK) { + res = dir_remove(&dj_old); /* Remove old entry */ + if (res == FR_OK) + res = sync(dj_old.fs); + } + } + } + + LEAVE_FF(dj_old.fs, res); +} + +#endif /* !_FS_READONLY */ +#endif /* _FS_MINIMIZE == 0 */ +#endif /* _FS_MINIMIZE <= 1 */ +#endif /* _FS_MINIMIZE <= 2 */ + + + +/*-----------------------------------------------------------------------*/ +/* Forward data to the stream directly (Available on only _FS_TINY cfg) */ +/*-----------------------------------------------------------------------*/ +#if _USE_FORWARD && _FS_TINY + +FRESULT f_forward ( + FIL *fp, /* Pointer to the file object */ + UINT (*func)(const BYTE*,UINT), /* Pointer to the streaming function */ + UINT btr, /* Number of bytes to forward */ + UINT *bf /* Pointer to number of bytes forwarded */ +) +{ + FRESULT res; + DWORD remain, clst, sect; + UINT rcnt; + + + *bf = 0; + + res = validate(fp->fs, fp->id); /* Check validity of the object */ + if (res != FR_OK) LEAVE_FF(fp->fs, res); + if (fp->flag & FA__ERROR) /* Check error flag */ + LEAVE_FF(fp->fs, FR_INT_ERR); + if (!(fp->flag & FA_READ)) /* Check access mode */ + LEAVE_FF(fp->fs, FR_DENIED); + + remain = fp->fsize - fp->fptr; + if (btr > remain) btr = (UINT)remain; /* Truncate btr by remaining bytes */ + + for ( ; btr && (*func)(NULL, 0); /* Repeat until all data transferred or stream becomes busy */ + fp->fptr += rcnt, *bf += rcnt, btr -= rcnt) { + if ((fp->fptr % SS(fp->fs)) == 0) { /* On the sector boundary? */ + if (fp->csect >= fp->fs->csize) { /* On the cluster boundary? */ + clst = (fp->fptr == 0) ? /* On the top of the file? */ + fp->org_clust : get_fat(fp->fs, fp->curr_clust); + if (clst <= 1) ABORT(fp->fs, FR_INT_ERR); + if (clst == 0xFFFFFFFF) ABORT(fp->fs, FR_DISK_ERR); + fp->curr_clust = clst; /* Update current cluster */ + fp->csect = 0; /* Reset sector address in the cluster */ + } + fp->csect++; /* Next sector address in the cluster */ + } + sect = clust2sect(fp->fs, fp->curr_clust); /* Get current data sector */ + if (!sect) ABORT(fp->fs, FR_INT_ERR); + sect += fp->csect - 1; + if (move_window(fp->fs, sect)) /* Move sector window */ + ABORT(fp->fs, FR_DISK_ERR); + fp->dsect = sect; + rcnt = SS(fp->fs) - (WORD)(fp->fptr % SS(fp->fs)); /* Forward data from sector window */ + if (rcnt > btr) rcnt = btr; + rcnt = (*func)(&fp->fs->win[(WORD)fp->fptr % SS(fp->fs)], rcnt); + if (!rcnt) ABORT(fp->fs, FR_INT_ERR); + } + + LEAVE_FF(fp->fs, FR_OK); +} +#endif /* _USE_FORWARD */ + + + +#if _USE_MKFS && !_FS_READONLY +/*-----------------------------------------------------------------------*/ +/* Create File System on the Drive */ +/*-----------------------------------------------------------------------*/ +#define N_ROOTDIR 512 /* Multiple of 32 and <= 2048 */ +#define N_FATS 1 /* 1 or 2 */ +#define MAX_SECTOR 131072000UL /* Maximum partition size */ +#define MIN_SECTOR 2000UL /* Minimum partition size */ + + +FRESULT f_mkfs ( + BYTE drv, /* Logical drive number */ + BYTE partition, /* Partitioning rule 0:FDISK, 1:SFD */ + WORD allocsize /* Allocation unit size [bytes] */ +) +{ + static const DWORD sstbl[] = { 2048000, 1024000, 512000, 256000, 128000, 64000, 32000, 16000, 8000, 4000, 0 }; + static const WORD cstbl[] = { 32768, 16384, 8192, 4096, 2048, 16384, 8192, 4096, 2048, 1024, 512 }; + BYTE fmt, m, *tbl; + DWORD b_part, b_fat, b_dir, b_data; /* Area offset (LBA) */ + DWORD n_part, n_rsv, n_fat, n_dir; /* Area size */ + DWORD n_clst, d, n; + WORD as; + FATFS *fs; + DSTATUS stat; + + + /* Check validity of the parameters */ + if (drv >= _DRIVES) return FR_INVALID_DRIVE; + if (partition >= 2) return FR_MKFS_ABORTED; + + /* Check mounted drive and clear work area */ + fs = FatFs[drv]; + if (!fs) return FR_NOT_ENABLED; + fs->fs_type = 0; + drv = LD2PD(drv); + + /* Get disk statics */ + stat = disk_initialize(drv); + if (stat & STA_NOINIT) return FR_NOT_READY; + if (stat & STA_PROTECT) return FR_WRITE_PROTECTED; +#if _MAX_SS != 512 /* Get disk sector size */ + if (disk_ioctl(drv, GET_SECTOR_SIZE, &SS(fs)) != RES_OK + || SS(fs) > _MAX_SS) + return FR_MKFS_ABORTED; +#endif + if (disk_ioctl(drv, GET_SECTOR_COUNT, &n_part) != RES_OK || n_part < MIN_SECTOR) + return FR_MKFS_ABORTED; + if (n_part > MAX_SECTOR) n_part = MAX_SECTOR; + b_part = (!partition) ? 63 : 0; /* Boot sector */ + n_part -= b_part; + for (d = 512; d <= 32768U && d != allocsize; d <<= 1) ; /* Check validity of the allocation unit size */ + if (d != allocsize) allocsize = 0; + if (!allocsize) { /* Auto selection of cluster size */ + d = n_part; + for (as = SS(fs); as > 512U; as >>= 1) d >>= 1; + for (n = 0; d < sstbl[n]; n++) ; + allocsize = cstbl[n]; + } + if (allocsize < SS(fs)) allocsize = SS(fs); + + allocsize /= SS(fs); /* Number of sectors per cluster */ + + /* Pre-compute number of clusters and FAT type */ + n_clst = n_part / allocsize; + fmt = FS_FAT12; + if (n_clst >= 0xFF5) fmt = FS_FAT16; + if (n_clst >= 0xFFF5) fmt = FS_FAT32; + + /* Determine offset and size of FAT structure */ + switch (fmt) { + case FS_FAT12: + n_fat = ((n_clst * 3 + 1) / 2 + 3 + SS(fs) - 1) / SS(fs); + n_rsv = 1 + partition; + n_dir = N_ROOTDIR * 32 / SS(fs); + break; + case FS_FAT16: + n_fat = ((n_clst * 2) + 4 + SS(fs) - 1) / SS(fs); + n_rsv = 1 + partition; + n_dir = N_ROOTDIR * 32 / SS(fs); + break; + default: + n_fat = ((n_clst * 4) + 8 + SS(fs) - 1) / SS(fs); + n_rsv = 33 - partition; + n_dir = 0; + } + b_fat = b_part + n_rsv; /* FATs start sector */ + b_dir = b_fat + n_fat * N_FATS; /* Directory start sector */ + b_data = b_dir + n_dir; /* Data start sector */ + + /* Align data start sector to erase block boundary (for flash memory media) */ + if (disk_ioctl(drv, GET_BLOCK_SIZE, &n) != RES_OK) return FR_MKFS_ABORTED; + n = (b_data + n - 1) & ~(n - 1); + n_fat += (n - b_data) / N_FATS; + /* b_dir and b_data are no longer used below */ + + /* Determine number of cluster and final check of validity of the FAT type */ + n_clst = (n_part - n_rsv - n_fat * N_FATS - n_dir) / allocsize; + if ( (fmt == FS_FAT16 && n_clst < 0xFF5) + || (fmt == FS_FAT32 && n_clst < 0xFFF5)) + return FR_MKFS_ABORTED; + + /* Create partition table if needed */ + if (!partition) { + DWORD n_disk = b_part + n_part; + + mem_set(fs->win, 0, SS(fs)); + tbl = fs->win+MBR_Table; + ST_DWORD(tbl, 0x00010180); /* Partition start in CHS */ + if (n_disk < 63UL * 255 * 1024) { /* Partition end in CHS */ + n_disk = n_disk / 63 / 255; + tbl[7] = (BYTE)n_disk; + tbl[6] = (BYTE)((n_disk >> 2) | 63); + } else { + ST_WORD(&tbl[6], 0xFFFF); + } + tbl[5] = 254; + if (fmt != FS_FAT32) /* System ID */ + tbl[4] = (n_part < 0x10000) ? 0x04 : 0x06; + else + tbl[4] = 0x0c; + ST_DWORD(tbl+8, 63); /* Partition start in LBA */ + ST_DWORD(tbl+12, n_part); /* Partition size in LBA */ + ST_WORD(tbl+64, 0xAA55); /* Signature */ + if (disk_write(drv, fs->win, 0, 1) != RES_OK) + return FR_DISK_ERR; + partition = 0xF8; + } else { + partition = 0xF0; + } + + /* Create boot record */ + tbl = fs->win; /* Clear buffer */ + mem_set(tbl, 0, SS(fs)); + ST_DWORD(tbl+BS_jmpBoot, 0x90FEEB); /* Boot code (jmp $, nop) */ + ST_WORD(tbl+BPB_BytsPerSec, SS(fs)); /* Sector size */ + tbl[BPB_SecPerClus] = (BYTE)allocsize; /* Sectors per cluster */ + ST_WORD(tbl+BPB_RsvdSecCnt, n_rsv); /* Reserved sectors */ + tbl[BPB_NumFATs] = N_FATS; /* Number of FATs */ + ST_WORD(tbl+BPB_RootEntCnt, SS(fs) / 32 * n_dir); /* Number of rootdir entries */ + if (n_part < 0x10000) { /* Number of total sectors */ + ST_WORD(tbl+BPB_TotSec16, n_part); + } else { + ST_DWORD(tbl+BPB_TotSec32, n_part); + } + tbl[BPB_Media] = partition; /* Media descripter */ + ST_WORD(tbl+BPB_SecPerTrk, 63); /* Number of sectors per track */ + ST_WORD(tbl+BPB_NumHeads, 255); /* Number of heads */ + ST_DWORD(tbl+BPB_HiddSec, b_part); /* Hidden sectors */ + n = get_fattime(); /* Use current time as a VSN */ + if (fmt != FS_FAT32) { + ST_DWORD(tbl+BS_VolID, n); /* Volume serial number */ + ST_WORD(tbl+BPB_FATSz16, n_fat); /* Number of secters per FAT */ + tbl[BS_DrvNum] = 0x80; /* Drive number */ + tbl[BS_BootSig] = 0x29; /* Extended boot signature */ + mem_cpy(tbl+BS_VolLab, "NO NAME FAT ", 19); /* Volume lavel, FAT signature */ + } else { + ST_DWORD(tbl+BS_VolID32, n); /* Volume serial number */ + ST_DWORD(tbl+BPB_FATSz32, n_fat); /* Number of secters per FAT */ + ST_DWORD(tbl+BPB_RootClus, 2); /* Root directory cluster (2) */ + ST_WORD(tbl+BPB_FSInfo, 1); /* FSInfo record offset (bs+1) */ + ST_WORD(tbl+BPB_BkBootSec, 6); /* Backup boot record offset (bs+6) */ + tbl[BS_DrvNum32] = 0x80; /* Drive number */ + tbl[BS_BootSig32] = 0x29; /* Extended boot signature */ + mem_cpy(tbl+BS_VolLab32, "NO NAME FAT32 ", 19); /* Volume lavel, FAT signature */ + } + ST_WORD(tbl+BS_55AA, 0xAA55); /* Signature */ + if (SS(fs) > 512U) { + ST_WORD(tbl+SS(fs)-2, 0xAA55); + } + if (disk_write(drv, tbl, b_part+0, 1) != RES_OK) + return FR_DISK_ERR; + if (fmt == FS_FAT32) + disk_write(drv, tbl, b_part+6, 1); + + /* Initialize FAT area */ + for (m = 0; m < N_FATS; m++) { + mem_set(tbl, 0, SS(fs)); /* 1st sector of the FAT */ + if (fmt != FS_FAT32) { + n = (fmt == FS_FAT12) ? 0x00FFFF00 : 0xFFFFFF00; + n |= partition; + ST_DWORD(tbl, n); /* Reserve cluster #0-1 (FAT12/16) */ + } else { + ST_DWORD(tbl+0, 0xFFFFFFF8); /* Reserve cluster #0-1 (FAT32) */ + ST_DWORD(tbl+4, 0xFFFFFFFF); + ST_DWORD(tbl+8, 0x0FFFFFFF); /* Reserve cluster #2 for root dir */ + } + if (disk_write(drv, tbl, b_fat++, 1) != RES_OK) + return FR_DISK_ERR; + mem_set(tbl, 0, SS(fs)); /* Following FAT entries are filled by zero */ + for (n = 1; n < n_fat; n++) { + if (disk_write(drv, tbl, b_fat++, 1) != RES_OK) + return FR_DISK_ERR; + } + } + + /* Initialize Root directory */ + m = (BYTE)((fmt == FS_FAT32) ? allocsize : n_dir); + do { + if (disk_write(drv, tbl, b_fat++, 1) != RES_OK) + return FR_DISK_ERR; + } while (--m); + + /* Create FSInfo record if needed */ + if (fmt == FS_FAT32) { + ST_WORD(tbl+BS_55AA, 0xAA55); + ST_DWORD(tbl+FSI_LeadSig, 0x41615252); + ST_DWORD(tbl+FSI_StrucSig, 0x61417272); + ST_DWORD(tbl+FSI_Free_Count, n_clst - 1); + ST_DWORD(tbl+FSI_Nxt_Free, 0xFFFFFFFF); + disk_write(drv, tbl, b_part+1, 1); + disk_write(drv, tbl, b_part+7, 1); + } + + return (disk_ioctl(drv, CTRL_SYNC, (void*)NULL) == RES_OK) ? FR_OK : FR_DISK_ERR; +} + +#endif /* _USE_MKFS && !_FS_READONLY */ + + + + +#if _USE_STRFUNC +/*-----------------------------------------------------------------------*/ +/* Get a string from the file */ +/*-----------------------------------------------------------------------*/ +char* f_gets ( + char* buff, /* Pointer to the string buffer to read */ + int len, /* Size of string buffer */ + FIL* fil /* Pointer to the file object */ +) +{ + int i = 0; + char *p = buff; + UINT rc; + + + while (i < len - 1) { /* Read bytes until buffer gets filled */ + f_read(fil, p, 1, &rc); + if (rc != 1) break; /* Break when no data to read */ +#if _USE_STRFUNC >= 2 + if (*p == '\r') continue; /* Strip '\r' */ +#endif + i++; + if (*p++ == '\n') break; /* Break when reached end of line */ + } + *p = 0; + return i ? buff : NULL; /* When no data read (eof or error), return with error. */ +} + + + +#if !_FS_READONLY +#include +/*-----------------------------------------------------------------------*/ +/* Put a character to the file */ +/*-----------------------------------------------------------------------*/ +int f_putc ( + int chr, /* A character to be output */ + FIL* fil /* Ponter to the file object */ +) +{ + UINT bw; + char c; + + +#if _USE_STRFUNC >= 2 + if (chr == '\n') f_putc ('\r', fil); /* LF -> CRLF conversion */ +#endif + if (!fil) { /* Special value may be used to switch the destination to any other device */ + /* put_console(chr); */ + return chr; + } + c = (char)chr; + f_write(fil, &c, 1, &bw); /* Write a byte to the file */ + return bw ? chr : EOF; /* Return the result */ +} + + + + +/*-----------------------------------------------------------------------*/ +/* Put a string to the file */ +/*-----------------------------------------------------------------------*/ +int f_puts ( + const char* str, /* Pointer to the string to be output */ + FIL* fil /* Pointer to the file object */ +) +{ + int n; + + + for (n = 0; *str; str++, n++) { + if (f_putc(*str, fil) == EOF) return EOF; + } + return n; +} + + + + +/*-----------------------------------------------------------------------*/ +/* Put a formatted string to the file */ +/*-----------------------------------------------------------------------*/ +int f_printf ( + FIL* fil, /* Pointer to the file object */ + const char* str, /* Pointer to the format string */ + ... /* Optional arguments... */ +) +{ + va_list arp; + UCHAR c, f, r; + ULONG val; + char s[16]; + int i, w, res, cc; + + + va_start(arp, str); + + for (cc = res = 0; cc != EOF; res += cc) { + c = *str++; + if (c == 0) break; /* End of string */ + if (c != '%') { /* Non escape cahracter */ + cc = f_putc(c, fil); + if (cc != EOF) cc = 1; + continue; + } + w = f = 0; + c = *str++; + if (c == '0') { /* Flag: '0' padding */ + f = 1; c = *str++; + } + while (c >= '0' && c <= '9') { /* Precision */ + w = w * 10 + (c - '0'); + c = *str++; + } + if (c == 'l') { /* Prefix: Size is long int */ + f |= 2; c = *str++; + } + if (c == 's') { /* Type is string */ + cc = f_puts(va_arg(arp, char*), fil); + continue; + } + if (c == 'c') { /* Type is character */ + cc = f_putc(va_arg(arp, int), fil); + if (cc != EOF) cc = 1; + continue; + } + r = 0; + if (c == 'd') r = 10; /* Type is signed decimal */ + if (c == 'u') r = 10; /* Type is unsigned decimal */ + if (c == 'X') r = 16; /* Type is unsigned hexdecimal */ + if (r == 0) break; /* Unknown type */ + if (f & 2) { /* Get the value */ + val = (ULONG)va_arg(arp, long); + } else { + val = (c == 'd') ? (ULONG)(long)va_arg(arp, int) : (ULONG)va_arg(arp, unsigned int); + } + /* Put numeral string */ + if (c == 'd') { + if (val & 0x80000000) { + val = 0 - val; + f |= 4; + } + } + i = sizeof(s) - 1; s[i] = 0; + do { + c = (UCHAR)(val % r + '0'); + if (c > '9') c += 7; + s[--i] = c; + val /= r; + } while (i && val); + if (i && (f & 4)) s[--i] = '-'; + w = sizeof(s) - 1 - w; + while (i && i > w) s[--i] = (f & 1) ? '0' : ' '; + cc = f_puts(&s[i], fil); + } + + va_end(arp); + return (cc == EOF) ? cc : res; +} + +#endif /* !_FS_READONLY */ +#endif /* _USE_STRFUNC */ diff --git a/Projects/TemperatureDataLogger/Lib/FATFs/ff.h b/Projects/TemperatureDataLogger/Lib/FATFs/ff.h index 41e136ee5..69bfd3109 100644 --- a/Projects/TemperatureDataLogger/Lib/FATFs/ff.h +++ b/Projects/TemperatureDataLogger/Lib/FATFs/ff.h @@ -1,596 +1,596 @@ -/*---------------------------------------------------------------------------/ -/ FatFs - FAT file system module include file R0.07e (C)ChaN, 2010 -/----------------------------------------------------------------------------/ -/ FatFs module is a generic FAT file system module for small embedded systems. -/ This is a free software that opened for education, research and commercial -/ developments under license policy of following trems. -/ -/ Copyright (C) 2010, ChaN, all right reserved. -/ -/ * The FatFs module is a free software and there is NO WARRANTY. -/ * No restriction on use. You can use, modify and redistribute it for -/ personal, non-profit or commercial product UNDER YOUR RESPONSIBILITY. -/ * Redistributions of source code must retain the above copyright notice. -/----------------------------------------------------------------------------*/ - -#ifndef _FATFS -#define _FATFS 0x007E - -#include "integer.h" /* Basic integer types */ -#include "ffconf.h" /* FatFs configuration options */ - -#if _FATFS != _FFCONFIG -#error Wrong configuration file (ffconf.h). -#endif - - -/* DBCS code ranges and SBCS extend char conversion table */ - -#if _CODE_PAGE == 932 /* Japanese Shift-JIS */ -#define _DF1S 0x81 /* DBC 1st byte range 1 start */ -#define _DF1E 0x9F /* DBC 1st byte range 1 end */ -#define _DF2S 0xE0 /* DBC 1st byte range 2 start */ -#define _DF2E 0xFC /* DBC 1st byte range 2 end */ -#define _DS1S 0x40 /* DBC 2nd byte range 1 start */ -#define _DS1E 0x7E /* DBC 2nd byte range 1 end */ -#define _DS2S 0x80 /* DBC 2nd byte range 2 start */ -#define _DS2E 0xFC /* DBC 2nd byte range 2 end */ - -#elif _CODE_PAGE == 936 /* Simplified Chinese GBK */ -#define _DF1S 0x81 -#define _DF1E 0xFE -#define _DS1S 0x40 -#define _DS1E 0x7E -#define _DS2S 0x80 -#define _DS2E 0xFE - -#elif _CODE_PAGE == 949 /* Korean */ -#define _DF1S 0x81 -#define _DF1E 0xFE -#define _DS1S 0x41 -#define _DS1E 0x5A -#define _DS2S 0x61 -#define _DS2E 0x7A -#define _DS3S 0x81 -#define _DS3E 0xFE - -#elif _CODE_PAGE == 950 /* Traditional Chinese Big5 */ -#define _DF1S 0x81 -#define _DF1E 0xFE -#define _DS1S 0x40 -#define _DS1E 0x7E -#define _DS2S 0xA1 -#define _DS2E 0xFE - -#elif _CODE_PAGE == 437 /* U.S. (OEM) */ -#define _DF1S 0 -#define _EXCVT {0x80,0x9A,0x90,0x41,0x8E,0x41,0x8F,0x80,0x45,0x45,0x45,0x49,0x49,0x49,0x8E,0x8F,0x90,0x92,0x92,0x4F,0x99,0x4F,0x55,0x55,0x59,0x99,0x9A,0x9B,0x9C,0x9D,0x9E,0x9F, \ - 0x41,0x49,0x4F,0x55,0xA5,0xA5,0xA6,0xA7,0xA8,0xA9,0xAA,0xAB,0xAC,0x21,0xAE,0xAF,0xB0,0xB1,0xB2,0xB3,0xB4,0xB5,0xB6,0xB7,0xB8,0xB9,0xBA,0xBB,0xBC,0xBD,0xBE,0xBF, \ - 0xC0,0xC1,0xC2,0xC3,0xC4,0xC5,0xC6,0xC7,0xC8,0xC9,0xCA,0xCB,0xCC,0xCD,0xCE,0xCF,0xD0,0xD1,0xD2,0xD3,0xD4,0xD5,0xD6,0xD7,0xD8,0xD9,0xDA,0xDB,0xDC,0xDD,0xDE,0xDF, \ - 0xE0,0xE1,0xE2,0xE3,0xE4,0xE5,0xE6,0xE7,0xE8,0xE9,0xEA,0xEB,0xEC,0xED,0xEE,0xEF,0xF0,0xF1,0xF2,0xF3,0xF4,0xF5,0xF6,0xF7,0xF8,0xF9,0xFA,0xFB,0xFC,0xFD,0xFE,0xFF} - -#elif _CODE_PAGE == 720 /* Arabic (OEM) */ -#define _DF1S 0 -#define _EXCVT {0x80,0x81,0x45,0x41,0x84,0x41,0x86,0x43,0x45,0x45,0x45,0x49,0x49,0x8D,0x8E,0x8F,0x90,0x92,0x92,0x93,0x94,0x95,0x49,0x49,0x98,0x99,0x9A,0x9B,0x9C,0x9D,0x9E,0x9F, \ - 0xA0,0xA1,0xA2,0xA3,0xA4,0xA5,0xA6,0xA7,0xA8,0xA9,0xAA,0xAB,0xAC,0xAD,0xAE,0xAF,0xB0,0xB1,0xB2,0xB3,0xB4,0xB5,0xB6,0xB7,0xB8,0xB9,0xBA,0xBB,0xBC,0xBD,0xBE,0xBF, \ - 0xC0,0xC1,0xC2,0xC3,0xC4,0xC5,0xC6,0xC7,0xC8,0xC9,0xCA,0xCB,0xCC,0xCD,0xCE,0xCF,0xD0,0xD1,0xD2,0xD3,0xD4,0xD5,0xD6,0xD7,0xD8,0xD9,0xDA,0xDB,0xDC,0xDD,0xDE,0xDF, \ - 0xE0,0xE1,0xE2,0xE3,0xE4,0xE5,0xE6,0xE7,0xE8,0xE9,0xEA,0xEB,0xEC,0xED,0xEE,0xEF,0xF0,0xF1,0xF2,0xF3,0xF4,0xF5,0xF6,0xF7,0xF8,0xF9,0xFA,0xFB,0xFC,0xFD,0xFE,0xFF} - -#elif _CODE_PAGE == 737 /* Greek (OEM) */ -#define _DF1S 0 -#define _EXCVT {0x80,0x81,0x82,0x83,0x84,0x85,0x86,0x87,0x88,0x89,0x8A,0x8B,0x8C,0x8D,0x8E,0x8F,0x90,0x92,0x92,0x93,0x94,0x95,0x96,0x97,0x80,0x81,0x82,0x83,0x84,0x85,0x86,0x87, \ - 0x88,0x89,0x8A,0x8B,0x8C,0x8D,0x8E,0x8F,0x90,0x91,0xAA,0x92,0x93,0x94,0x95,0x96,0xB0,0xB1,0xB2,0xB3,0xB4,0xB5,0xB6,0xB7,0xB8,0xB9,0xBA,0xBB,0xBC,0xBD,0xBE,0xBF, \ - 0xC0,0xC1,0xC2,0xC3,0xC4,0xC5,0xC6,0xC7,0xC8,0xC9,0xCA,0xCB,0xCC,0xCD,0xCE,0xCF,0xD0,0xD1,0xD2,0xD3,0xD4,0xD5,0xD6,0xD7,0xD8,0xD9,0xDA,0xDB,0xDC,0xDD,0xDE,0xDF, \ - 0x97,0xEA,0xEB,0xEC,0xE4,0xED,0xEE,0xE7,0xE8,0xF1,0xEA,0xEB,0xEC,0xED,0xEE,0xEF,0xF0,0xF1,0xF2,0xF3,0xF4,0xF5,0xF6,0xF7,0xF8,0xF9,0xFA,0xFB,0xFC,0xFD,0xFE,0xFF} - -#elif _CODE_PAGE == 775 /* Baltic (OEM) */ -#define _DF1S 0 -#define _EXCVT {0x80,0x9A,0x91,0xA0,0x8E,0x95,0x8F,0x80,0xAD,0xED,0x8A,0x8A,0xA1,0x8D,0x8E,0x8F,0x90,0x92,0x92,0xE2,0x99,0x95,0x96,0x97,0x97,0x99,0x9A,0x9D,0x9C,0x9D,0x9E,0x9F, \ - 0xA0,0xA1,0xE0,0xA3,0xA3,0xA5,0xA6,0xA7,0xA8,0xA9,0xAA,0xAB,0xAC,0xAD,0xAE,0xAF,0xB0,0xB1,0xB2,0xB3,0xB4,0xB5,0xB6,0xB7,0xB8,0xB9,0xBA,0xBB,0xBC,0xBD,0xBE,0xBF, \ - 0xC0,0xC1,0xC2,0xC3,0xC4,0xC5,0xC6,0xC7,0xC8,0xC9,0xCA,0xCB,0xCC,0xCD,0xCE,0xCF,0xB5,0xB6,0xB7,0xB8,0xBD,0xBE,0xC6,0xC7,0xA5,0xD9,0xDA,0xDB,0xDC,0xDD,0xDE,0xDF, \ - 0xE0,0xE1,0xE2,0xE3,0xE5,0xE5,0xE6,0xE3,0xE8,0xE8,0xEA,0xEA,0xEE,0xED,0xEE,0xEF,0xF0,0xF1,0xF2,0xF3,0xF4,0xF5,0xF6,0xF7,0xF8,0xF9,0xFA,0xFB,0xFC,0xFD,0xFE,0xFF} - -#elif _CODE_PAGE == 850 /* Multilingual Latin 1 (OEM) */ -#define _DF1S 0 -#define _EXCVT {0x80,0x9A,0x90,0xB6,0x8E,0xB7,0x8F,0x80,0xD2,0xD3,0xD4,0xD8,0xD7,0xDE,0x8E,0x8F,0x90,0x92,0x92,0xE2,0x99,0xE3,0xEA,0xEB,0x59,0x99,0x9A,0x9D,0x9C,0x9D,0x9E,0x9F, \ - 0xB5,0xD6,0xE0,0xE9,0xA5,0xA5,0xA6,0xA7,0xA8,0xA9,0xAA,0xAB,0xAC,0x21,0xAE,0xAF,0xB0,0xB1,0xB2,0xB3,0xB4,0xB5,0xB6,0xB7,0xB8,0xB9,0xBA,0xBB,0xBC,0xBD,0xBE,0xBF, \ - 0xC0,0xC1,0xC2,0xC3,0xC4,0xC5,0xC7,0xC7,0xC8,0xC9,0xCA,0xCB,0xCC,0xCD,0xCE,0xCF,0xD0,0xD1,0xD2,0xD3,0xD4,0xD5,0xD6,0xD7,0xD8,0xD9,0xDA,0xDB,0xDC,0xDD,0xDE,0xDF, \ - 0xE0,0xE1,0xE2,0xE3,0xE5,0xE5,0xE6,0xE7,0xE7,0xE9,0xEA,0xEB,0xED,0xED,0xEE,0xEF,0xF0,0xF1,0xF2,0xF3,0xF4,0xF5,0xF6,0xF7,0xF8,0xF9,0xFA,0xFB,0xFC,0xFD,0xFE,0xFF} - -#elif _CODE_PAGE == 852 /* Latin 2 (OEM) */ -#define _DF1S 0 -#define _EXCVT {0x80,0x9A,0x90,0xB6,0x8E,0xDE,0x8F,0x80,0x9D,0xD3,0x8A,0x8A,0xD7,0x8D,0x8E,0x8F,0x90,0x91,0x91,0xE2,0x99,0x95,0x95,0x97,0x97,0x99,0x9A,0x9B,0x9B,0x9D,0x9E,0x9F, \ - 0xB5,0xD6,0xE0,0xE9,0xA4,0xA4,0xA6,0xA6,0xA8,0xA8,0xAA,0x8D,0xAC,0xB8,0xAE,0xAF,0xB0,0xB1,0xB2,0xB3,0xB4,0xB5,0xB6,0xB7,0xB8,0xB9,0xBA,0xBB,0xBC,0xBD,0xBD,0xBF, \ - 0xC0,0xC1,0xC2,0xC3,0xC4,0xC5,0xC6,0xC6,0xC8,0xC9,0xCA,0xCB,0xCC,0xCD,0xCE,0xCF,0xD1,0xD1,0xD2,0xD3,0xD2,0xD5,0xD6,0xD7,0xB7,0xD9,0xDA,0xDB,0xDC,0xDD,0xDE,0xDF, \ - 0xE0,0xE1,0xE2,0xE3,0xE3,0xD5,0xE6,0xE6,0xE8,0xE9,0xE8,0xEB,0xED,0xED,0xDD,0xEF,0xF0,0xF1,0xF2,0xF3,0xF4,0xF5,0xF6,0xF7,0xF8,0xF9,0xFA,0xEB,0xFC,0xFC,0xFE,0xFF} - -#elif _CODE_PAGE == 855 /* Cyrillic (OEM) */ -#define _DF1S 0 -#define _EXCVT {0x81,0x81,0x83,0x83,0x85,0x85,0x87,0x87,0x89,0x89,0x8B,0x8B,0x8D,0x8D,0x8F,0x8F,0x91,0x91,0x93,0x93,0x95,0x95,0x97,0x97,0x99,0x99,0x9B,0x9B,0x9D,0x9D,0x9F,0x9F, \ - 0xA1,0xA1,0xA3,0xA3,0xA5,0xA5,0xA7,0xA7,0xA9,0xA9,0xAB,0xAB,0xAD,0xAD,0xAE,0xAF,0xB0,0xB1,0xB2,0xB3,0xB4,0xB6,0xB6,0xB8,0xB8,0xB9,0xBA,0xBB,0xBC,0xBE,0xBE,0xBF, \ - 0xC0,0xC1,0xC2,0xC3,0xC4,0xC5,0xC7,0xC7,0xC8,0xC9,0xCA,0xCB,0xCC,0xCD,0xCE,0xCF,0xD1,0xD1,0xD3,0xD3,0xD5,0xD5,0xD7,0xD7,0xDD,0xD9,0xDA,0xDB,0xDC,0xDD,0xE0,0xDF, \ - 0xE0,0xE2,0xE2,0xE4,0xE4,0xE6,0xE6,0xE8,0xE8,0xEA,0xEA,0xEC,0xEC,0xEE,0xEE,0xEF,0xF0,0xF2,0xF2,0xF4,0xF4,0xF6,0xF6,0xF8,0xF8,0xFA,0xFA,0xFC,0xFC,0xFD,0xFE,0xFF} - -#elif _CODE_PAGE == 857 /* Turkish (OEM) */ -#define _DF1S 0 -#define _EXCVT {0x80,0x9A,0x90,0xB6,0x8E,0xB7,0x8F,0x80,0xD2,0xD3,0xD4,0xD8,0xD7,0x98,0x8E,0x8F,0x90,0x92,0x92,0xE2,0x99,0xE3,0xEA,0xEB,0x98,0x99,0x9A,0x9D,0x9C,0x9D,0x9E,0x9E, \ - 0xB5,0xD6,0xE0,0xE9,0xA5,0xA5,0xA6,0xA6,0xA8,0xA9,0xAA,0xAB,0xAC,0x21,0xAE,0xAF,0xB0,0xB1,0xB2,0xB3,0xB4,0xB5,0xB6,0xB7,0xB8,0xB9,0xBA,0xBB,0xBC,0xBD,0xBE,0xBF, \ - 0xC0,0xC1,0xC2,0xC3,0xC4,0xC5,0xC7,0xC7,0xC8,0xC9,0xCA,0xCB,0xCC,0xCD,0xCE,0xCF,0xD0,0xD1,0xD2,0xD3,0xD4,0xD5,0xD6,0xD7,0xD8,0xD9,0xDA,0xDB,0xDC,0xDD,0xDE,0xDF, \ - 0xE0,0xE1,0xE2,0xE3,0xE5,0xE5,0xE6,0xE7,0xE8,0xE9,0xEA,0xEB,0xDE,0x59,0xEE,0xEF,0xF0,0xF1,0xF2,0xF3,0xF4,0xF5,0xF6,0xF7,0xF8,0xF9,0xFA,0xFB,0xFC,0xFD,0xFE,0xFF} - -#elif _CODE_PAGE == 858 /* Multilingual Latin 1 + Euro (OEM) */ -#define _DF1S 0 -#define _EXCVT {0x80,0x9A,0x90,0xB6,0x8E,0xB7,0x8F,0x80,0xD2,0xD3,0xD4,0xD8,0xD7,0xDE,0x8E,0x8F,0x90,0x92,0x92,0xE2,0x99,0xE3,0xEA,0xEB,0x59,0x99,0x9A,0x9D,0x9C,0x9D,0x9E,0x9F, \ - 0xB5,0xD6,0xE0,0xE9,0xA5,0xA5,0xA6,0xA7,0xA8,0xA9,0xAA,0xAB,0xAC,0x21,0xAE,0xAF,0xB0,0xB1,0xB2,0xB3,0xB4,0xB5,0xB6,0xB7,0xB8,0xB9,0xBA,0xBB,0xBC,0xBD,0xBE,0xBF, \ - 0xC0,0xC1,0xC2,0xC3,0xC4,0xC5,0xC7,0xC7,0xC8,0xC9,0xCA,0xCB,0xCC,0xCD,0xCE,0xCF,0xD1,0xD1,0xD2,0xD3,0xD4,0xD5,0xD6,0xD7,0xD8,0xD9,0xDA,0xDB,0xDC,0xDD,0xDE,0xDF, \ - 0xE0,0xE1,0xE2,0xE3,0xE5,0xE5,0xE6,0xE7,0xE7,0xE9,0xEA,0xEB,0xED,0xED,0xEE,0xEF,0xF0,0xF1,0xF2,0xF3,0xF4,0xF5,0xF6,0xF7,0xF8,0xF9,0xFA,0xFB,0xFC,0xFD,0xFE,0xFF} - -#elif _CODE_PAGE == 862 /* Hebrew (OEM) */ -#define _DF1S 0 -#define _EXCVT {0x80,0x81,0x82,0x83,0x84,0x85,0x86,0x87,0x88,0x89,0x8A,0x8B,0x8C,0x8D,0x8E,0x8F,0x90,0x91,0x92,0x93,0x94,0x95,0x96,0x97,0x98,0x99,0x9A,0x9B,0x9C,0x9D,0x9E,0x9F, \ - 0x41,0x49,0x4F,0x55,0xA5,0xA5,0xA6,0xA7,0xA8,0xA9,0xAA,0xAB,0xAC,0x21,0xAE,0xAF,0xB0,0xB1,0xB2,0xB3,0xB4,0xB5,0xB6,0xB7,0xB8,0xB9,0xBA,0xBB,0xBC,0xBD,0xBE,0xBF, \ - 0xC0,0xC1,0xC2,0xC3,0xC4,0xC5,0xC6,0xC7,0xC8,0xC9,0xCA,0xCB,0xCC,0xCD,0xCE,0xCF,0xD0,0xD1,0xD2,0xD3,0xD4,0xD5,0xD6,0xD7,0xD8,0xD9,0xDA,0xDB,0xDC,0xDD,0xDE,0xDF, \ - 0xE0,0xE1,0xE2,0xE3,0xE4,0xE5,0xE6,0xE7,0xE8,0xE9,0xEA,0xEB,0xEC,0xED,0xEE,0xEF,0xF0,0xF1,0xF2,0xF3,0xF4,0xF5,0xF6,0xF7,0xF8,0xF9,0xFA,0xFB,0xFC,0xFD,0xFE,0xFF} - -#elif _CODE_PAGE == 866 /* Russian (OEM) */ -#define _DF1S 0 -#define _EXCVT {0x80,0x81,0x82,0x83,0x84,0x85,0x86,0x87,0x88,0x89,0x8A,0x8B,0x8C,0x8D,0x8E,0x8F,0x90,0x91,0x92,0x93,0x94,0x95,0x96,0x97,0x98,0x99,0x9A,0x9B,0x9C,0x9D,0x9E,0x9F, \ - 0x80,0x81,0x82,0x83,0x84,0x85,0x86,0x87,0x88,0x89,0x8A,0x8B,0x8C,0x8D,0x8E,0x8F,0xB0,0xB1,0xB2,0xB3,0xB4,0xB5,0xB6,0xB7,0xB8,0xB9,0xBA,0xBB,0xBC,0xBD,0xBE,0xBF, \ - 0xC0,0xC1,0xC2,0xC3,0xC4,0xC5,0xC6,0xC7,0xC8,0xC9,0xCA,0xCB,0xCC,0xCD,0xCE,0xCF,0xD0,0xD1,0xD2,0xD3,0xD4,0xD5,0xD6,0xD7,0xD8,0xD9,0xDA,0xDB,0xDC,0xDD,0xDE,0xDF, \ - 0x90,0x91,0x92,0x93,0x9d,0x95,0x96,0x97,0x98,0x99,0x9A,0x9B,0x9C,0x9D,0x9E,0x9F,0xF0,0xF0,0xF2,0xF2,0xF4,0xF4,0xF6,0xF6,0xF8,0xF9,0xFA,0xFB,0xFC,0xFD,0xFE,0xFF} - -#elif _CODE_PAGE == 874 /* Thai (OEM, Windows) */ -#define _DF1S 0 -#define _EXCVT {0x80,0x81,0x82,0x83,0x84,0x85,0x86,0x87,0x88,0x89,0x8A,0x8B,0x8C,0x8D,0x8E,0x8F,0x90,0x91,0x92,0x93,0x94,0x95,0x96,0x97,0x98,0x99,0x9A,0x9B,0x9C,0x9D,0x9E,0x9F, \ - 0xA0,0xA1,0xA2,0xA3,0xA4,0xA5,0xA6,0xA7,0xA8,0xA9,0xAA,0xAB,0xAC,0xAD,0xAE,0xAF,0xB0,0xB1,0xB2,0xB3,0xB4,0xB5,0xB6,0xB7,0xB8,0xB9,0xBA,0xBB,0xBC,0xBD,0xBE,0xBF, \ - 0xC0,0xC1,0xC2,0xC3,0xC4,0xC5,0xC6,0xC7,0xC8,0xC9,0xCA,0xCB,0xCC,0xCD,0xCE,0xCF,0xD0,0xD1,0xD2,0xD3,0xD4,0xD5,0xD6,0xD7,0xD8,0xD9,0xDA,0xDB,0xDC,0xDD,0xDE,0xDF, \ - 0xE0,0xE1,0xE2,0xE3,0xE4,0xE5,0xE6,0xE7,0xE8,0xE9,0xEA,0xEB,0xEC,0xED,0xEE,0xEF,0xF0,0xF1,0xF2,0xF3,0xF4,0xF5,0xF6,0xF7,0xF8,0xF9,0xFA,0xFB,0xFC,0xFD,0xFE,0xFF} - -#elif _CODE_PAGE == 1250 /* Central Europe (Windows) */ -#define _DF1S 0 -#define _EXCVT {0x80,0x81,0x82,0x83,0x84,0x85,0x86,0x87,0x88,0x89,0x8A,0x8B,0x8C,0x8D,0x8E,0x8F,0x90,0x91,0x92,0x93,0x94,0x95,0x96,0x97,0x98,0x99,0x8A,0x9B,0x8C,0x8D,0x8E,0x8F, \ - 0xA0,0xA1,0xA2,0xA3,0xA4,0xA5,0xA6,0xA7,0xA8,0xA9,0xAA,0xAB,0xAC,0xAD,0xAE,0xAF,0xB0,0xB1,0xB2,0xA3,0xB4,0xB5,0xB6,0xB7,0xB8,0xA5,0xAA,0xBB,0xBC,0xBD,0xBC,0xAF, \ - 0xC0,0xC1,0xC2,0xC3,0xC4,0xC5,0xC6,0xC7,0xC8,0xC9,0xCA,0xCB,0xCC,0xCD,0xCE,0xCF,0xD0,0xD1,0xD2,0xD3,0xD4,0xD5,0xD6,0xD7,0xD8,0xD9,0xDA,0xDB,0xDC,0xDD,0xDE,0xDF, \ - 0xC0,0xC1,0xC2,0xC3,0xC4,0xC5,0xC6,0xC7,0xC8,0xC9,0xCA,0xCB,0xCC,0xCD,0xCE,0xCF,0xD0,0xD1,0xD2,0xD3,0xD4,0xD5,0xD6,0xF7,0xD8,0xD9,0xDA,0xDB,0xDC,0xDD,0xDE,0xFF} - -#elif _CODE_PAGE == 1251 /* Cyrillic (Windows) */ -#define _DF1S 0 -#define _EXCVT {0x80,0x81,0x82,0x82,0x84,0x85,0x86,0x87,0x88,0x89,0x8A,0x8B,0x8C,0x8D,0x8E,0x8F,0x80,0x91,0x92,0x93,0x94,0x95,0x96,0x97,0x98,0x99,0x8A,0x9B,0x8C,0x8D,0x8E,0x8F, \ - 0xA0,0xA2,0xA2,0xA3,0xA4,0xA5,0xA6,0xA7,0xA8,0xA9,0xAA,0xAB,0xAC,0xAD,0xAE,0xAF,0xB0,0xB1,0xB2,0xB2,0xA5,0xB5,0xB6,0xB7,0xA8,0xB9,0xAA,0xBB,0xA3,0xBD,0xBD,0xAF, \ - 0xC0,0xC1,0xC2,0xC3,0xC4,0xC5,0xC6,0xC7,0xC8,0xC9,0xCA,0xCB,0xCC,0xCD,0xCE,0xCF,0xD0,0xD1,0xD2,0xD3,0xD4,0xD5,0xD6,0xD7,0xD8,0xD9,0xDA,0xDB,0xDC,0xDD,0xDE,0xDF, \ - 0xC0,0xC1,0xC2,0xC3,0xC4,0xC5,0xC6,0xC7,0xC8,0xC9,0xCA,0xCB,0xCC,0xCD,0xCE,0xCF,0xD0,0xD1,0xD2,0xD3,0xD4,0xD5,0xD6,0xD7,0xD8,0xD9,0xDA,0xDB,0xDC,0xDD,0xDE,0xDF} - -#elif _CODE_PAGE == 1252 /* Latin 1 (Windows) */ -#define _DF1S 0 -#define _EXCVT {0x80,0x81,0x82,0x83,0x84,0x85,0x86,0x87,0x88,0x89,0x8A,0x8B,0x8C,0x8D,0x8E,0x8F,0x90,0x91,0x92,0x93,0x94,0x95,0x96,0x97,0x98,0x99,0xAd,0x9B,0x8C,0x9D,0xAE,0x9F, \ - 0xA0,0x21,0xA2,0xA3,0xA4,0xA5,0xA6,0xA7,0xA8,0xA9,0xAA,0xAB,0xAC,0xAD,0xAE,0xAF,0xB0,0xB1,0xB2,0xB3,0xB4,0xB5,0xB6,0xB7,0xB8,0xB9,0xBA,0xBB,0xBC,0xBD,0xBE,0xBF, \ - 0xC0,0xC1,0xC2,0xC3,0xC4,0xC5,0xC6,0xC7,0xC8,0xC9,0xCA,0xCB,0xCC,0xCD,0xCE,0xCF,0xD0,0xD1,0xD2,0xD3,0xD4,0xD5,0xD6,0xD7,0xD8,0xD9,0xDA,0xDB,0xDC,0xDD,0xDE,0xDF, \ - 0xC0,0xC1,0xC2,0xC3,0xC4,0xC5,0xC6,0xC7,0xC8,0xC9,0xCA,0xCB,0xCC,0xCD,0xCE,0xCF,0xD0,0xD1,0xD2,0xD3,0xD4,0xD5,0xD6,0xF7,0xD8,0xD9,0xDA,0xDB,0xDC,0xDD,0xDE,0x9F} - -#elif _CODE_PAGE == 1253 /* Greek (Windows) */ -#define _DF1S 0 -#define _EXCVT {0x80,0x81,0x82,0x83,0x84,0x85,0x86,0x87,0x88,0x89,0x8A,0x8B,0x8C,0x8D,0x8E,0x8F,0x90,0x91,0x92,0x93,0x94,0x95,0x96,0x97,0x98,0x99,0x9A,0x9B,0x9C,0x9D,0x9E,0x9F, \ - 0xA0,0xA1,0xA2,0xA3,0xA4,0xA5,0xA6,0xA7,0xA8,0xA9,0xAA,0xAB,0xAC,0xAD,0xAE,0xAF,0xB0,0xB1,0xB2,0xB3,0xB4,0xB5,0xB6,0xB7,0xB8,0xB9,0xBA,0xBB,0xBC,0xBD,0xBE,0xBF, \ - 0xC0,0xC1,0xC2,0xC3,0xC4,0xC5,0xC6,0xC7,0xC8,0xC9,0xCA,0xCB,0xCC,0xCD,0xCE,0xCF,0xD0,0xD1,0xD2,0xD3,0xD4,0xD5,0xD6,0xD7,0xD8,0xD9,0xDA,0xDB,0xA2,0xB8,0xB9,0xBA, \ - 0xE0,0xC1,0xC2,0xC3,0xC4,0xC5,0xC6,0xC7,0xC8,0xC9,0xCA,0xCB,0xCC,0xCD,0xCE,0xCF,0xD0,0xD1,0xF2,0xD3,0xD4,0xD5,0xD6,0xD7,0xD8,0xD9,0xDA,0xFB,0xBC,0xFD,0xBF,0xFF} - -#elif _CODE_PAGE == 1254 /* Turkish (Windows) */ -#define _DF1S 0 -#define _EXCVT {0x80,0x81,0x82,0x83,0x84,0x85,0x86,0x87,0x88,0x89,0x8A,0x8B,0x8C,0x8D,0x8E,0x8F,0x90,0x91,0x92,0x93,0x94,0x95,0x96,0x97,0x98,0x99,0x8A,0x9B,0x8C,0x9D,0x9E,0x9F, \ - 0xA0,0x21,0xA2,0xA3,0xA4,0xA5,0xA6,0xA7,0xA8,0xA9,0xAA,0xAB,0xAC,0xAD,0xAE,0xAF,0xB0,0xB1,0xB2,0xB3,0xB4,0xB5,0xB6,0xB7,0xB8,0xB9,0xBA,0xBB,0xBC,0xBD,0xBE,0xBF, \ - 0xC0,0xC1,0xC2,0xC3,0xC4,0xC5,0xC6,0xC7,0xC8,0xC9,0xCA,0xCB,0xCC,0xCD,0xCE,0xCF,0xD0,0xD1,0xD2,0xD3,0xD4,0xD5,0xD6,0xD7,0xD8,0xD9,0xDA,0xDB,0xDC,0xDD,0xDE,0xDF, \ - 0xC0,0xC1,0xC2,0xC3,0xC4,0xC5,0xC6,0xC7,0xC8,0xC9,0xCA,0xCB,0xCC,0xCD,0xCE,0xCF,0xD0,0xD1,0xD2,0xD3,0xD4,0xD5,0xD6,0xF7,0xD8,0xD9,0xDA,0xDB,0xDC,0xDD,0xDE,0x9F} - -#elif _CODE_PAGE == 1255 /* Hebrew (Windows) */ -#define _DF1S 0 -#define _EXCVT {0x80,0x81,0x82,0x83,0x84,0x85,0x86,0x87,0x88,0x89,0x8A,0x8B,0x8C,0x8D,0x8E,0x8F,0x90,0x91,0x92,0x93,0x94,0x95,0x96,0x97,0x98,0x99,0x9A,0x9B,0x9C,0x9D,0x9E,0x9F, \ - 0xA0,0x21,0xA2,0xA3,0xA4,0xA5,0xA6,0xA7,0xA8,0xA9,0xAA,0xAB,0xAC,0xAD,0xAE,0xAF,0xB0,0xB1,0xB2,0xB3,0xB4,0xB5,0xB6,0xB7,0xB8,0xB9,0xBA,0xBB,0xBC,0xBD,0xBE,0xBF, \ - 0xC0,0xC1,0xC2,0xC3,0xC4,0xC5,0xC6,0xC7,0xC8,0xC9,0xCA,0xCB,0xCC,0xCD,0xCE,0xCF,0xD0,0xD1,0xD2,0xD3,0xD4,0xD5,0xD6,0xD7,0xD8,0xD9,0xDA,0xDB,0xDC,0xDD,0xDE,0xDF, \ - 0xE0,0xE1,0xE2,0xE3,0xE4,0xE5,0xE6,0xE7,0xE8,0xE9,0xEA,0xEB,0xEC,0xED,0xEE,0xEF,0xF0,0xF1,0xF2,0xF3,0xF4,0xF5,0xF6,0xF7,0xF8,0xF9,0xFA,0xFB,0xFC,0xFD,0xFE,0xFF} - -#elif _CODE_PAGE == 1256 /* Arabic (Windows) */ -#define _DF1S 0 -#define _EXCVT {0x80,0x81,0x82,0x83,0x84,0x85,0x86,0x87,0x88,0x89,0x8A,0x8B,0x8C,0x8D,0x8E,0x8F,0x90,0x91,0x92,0x93,0x94,0x95,0x96,0x97,0x98,0x99,0x9A,0x9B,0x8C,0x9D,0x9E,0x9F, \ - 0xA0,0xA1,0xA2,0xA3,0xA4,0xA5,0xA6,0xA7,0xA8,0xA9,0xAA,0xAB,0xAC,0xAD,0xAE,0xAF,0xB0,0xB1,0xB2,0xB3,0xB4,0xB5,0xB6,0xB7,0xB8,0xB9,0xBA,0xBB,0xBC,0xBD,0xBE,0xBF, \ - 0xC0,0xC1,0xC2,0xC3,0xC4,0xC5,0xC6,0xC7,0xC8,0xC9,0xCA,0xCB,0xCC,0xCD,0xCE,0xCF,0xD0,0xD1,0xD2,0xD3,0xD4,0xD5,0xD6,0xD7,0xD8,0xD9,0xDA,0xDB,0xDC,0xDD,0xDE,0xDF, \ - 0x41,0xE1,0x41,0xE3,0xE4,0xE5,0xE6,0x43,0x45,0x45,0x45,0x45,0xEC,0xED,0x49,0x49,0xF0,0xF1,0xF2,0xF3,0x4F,0xF5,0xF6,0xF7,0xF8,0x55,0xFA,0x55,0x55,0xFD,0xFE,0xFF} - -#elif _CODE_PAGE == 1257 /* Baltic (Windows) */ -#define _DF1S 0 -#define _EXCVT {0x80,0x81,0x82,0x83,0x84,0x85,0x86,0x87,0x88,0x89,0x8A,0x8B,0x8C,0x8D,0x8E,0x8F,0x90,0x91,0x92,0x93,0x94,0x95,0x96,0x97,0x98,0x99,0x9A,0x9B,0x9C,0x9D,0x9E,0x9F, \ - 0xA0,0xA1,0xA2,0xA3,0xA4,0xA5,0xA6,0xA7,0xA8,0xA9,0xAA,0xAB,0xAC,0xAD,0xAE,0xAF,0xB0,0xB1,0xB2,0xB3,0xB4,0xB5,0xB6,0xB7,0xA8,0xB9,0xAA,0xBB,0xBC,0xBD,0xBE,0xAF, \ - 0xC0,0xC1,0xC2,0xC3,0xC4,0xC5,0xC6,0xC7,0xC8,0xC9,0xCA,0xCB,0xCC,0xCD,0xCE,0xCF,0xD0,0xD1,0xD2,0xD3,0xD4,0xD5,0xD6,0xD7,0xD8,0xD9,0xDA,0xDB,0xDC,0xDD,0xDE,0xDF, \ - 0xC0,0xC1,0xC2,0xC3,0xC4,0xC5,0xC6,0xC7,0xC8,0xC9,0xCA,0xCB,0xCC,0xCD,0xCE,0xCF,0xD0,0xD1,0xD2,0xD3,0xD4,0xD5,0xD6,0xF7,0xD8,0xD9,0xDA,0xDB,0xDC,0xDD,0xDE,0xFF} - -#elif _CODE_PAGE == 1258 /* Vietnam (OEM, Windows) */ -#define _DF1S 0 -#define _EXCVT {0x80,0x81,0x82,0x83,0x84,0x85,0x86,0x87,0x88,0x89,0x8A,0x8B,0x8C,0x8D,0x8E,0x8F,0x90,0x91,0x92,0x93,0x94,0x95,0x96,0x97,0x98,0x99,0x9A,0x9B,0xAC,0x9D,0x9E,0x9F, \ - 0xA0,0x21,0xA2,0xA3,0xA4,0xA5,0xA6,0xA7,0xA8,0xA9,0xAA,0xAB,0xAC,0xAD,0xAE,0xAF,0xB0,0xB1,0xB2,0xB3,0xB4,0xB5,0xB6,0xB7,0xB8,0xB9,0xBA,0xBB,0xBC,0xBD,0xBE,0xBF, \ - 0xC0,0xC1,0xC2,0xC3,0xC4,0xC5,0xC6,0xC7,0xC8,0xC9,0xCA,0xCB,0xCC,0xCD,0xCE,0xCF,0xD0,0xD1,0xD2,0xD3,0xD4,0xD5,0xD6,0xD7,0xD8,0xD9,0xDA,0xDB,0xDC,0xDD,0xDE,0xDF, \ - 0xC0,0xC1,0xC2,0xC3,0xC4,0xC5,0xC6,0xC7,0xC8,0xC9,0xCA,0xCB,0xEC,0xCD,0xCE,0xCF,0xD0,0xD1,0xF2,0xD3,0xD4,0xD5,0xD6,0xF7,0xD8,0xD9,0xDA,0xDB,0xDC,0xDD,0xFE,0x9F} - -#elif _CODE_PAGE == 1 /* ASCII (for only non-LFN cfg) */ -#define _DF1S 0 - -#else -#error Unknown code page - -#endif - - - -/* Character code support macros */ - -#define IsUpper(c) (((c)>='A')&&((c)<='Z')) -#define IsLower(c) (((c)>='a')&&((c)<='z')) - -#if _DF1S /* DBCS configuration */ - -#ifdef _DF2S /* Two 1st byte areas */ -#define IsDBCS1(c) (((BYTE)(c) >= _DF1S && (BYTE)(c) <= _DF1E) || ((BYTE)(c) >= _DF2S && (BYTE)(c) <= _DF2E)) -#else /* One 1st byte area */ -#define IsDBCS1(c) ((BYTE)(c) >= _DF1S && (BYTE)(c) <= _DF1E) -#endif - -#ifdef _DS3S /* Three 2nd byte areas */ -#define IsDBCS2(c) (((BYTE)(c) >= _DS1S && (BYTE)(c) <= _DS1E) || ((BYTE)(c) >= _DS2S && (BYTE)(c) <= _DS2E) || ((BYTE)(c) >= _DS3S && (BYTE)(c) <= _DS3E)) -#else /* Two 2nd byte areas */ -#define IsDBCS2(c) (((BYTE)(c) >= _DS1S && (BYTE)(c) <= _DS1E) || ((BYTE)(c) >= _DS2S && (BYTE)(c) <= _DS2E)) -#endif - -#else /* SBCS configuration */ - -#define IsDBCS1(c) 0 -#define IsDBCS2(c) 0 - -#endif /* _DF1S */ - - - -/* Definitions corresponds to multi partition */ - -#if _MULTI_PARTITION /* Multiple partition configuration */ - -typedef struct _PARTITION { - BYTE pd; /* Physical drive# */ - BYTE pt; /* Partition # (0-3) */ -} PARTITION; - -extern -const PARTITION Drives[]; /* Logical drive# to physical location conversion table */ -#define LD2PD(drv) (Drives[drv].pd) /* Get physical drive# */ -#define LD2PT(drv) (Drives[drv].pt) /* Get partition# */ - -#else /* Single partition configuration */ - -#define LD2PD(drv) (drv) /* Physical drive# is equal to the logical drive# */ -#define LD2PT(drv) 0 /* Always mounts the 1st partition */ - -#endif - - - -/* Definitions corresponds to multiple sector size */ - -#if _MAX_SS == 512 /* Single sector size */ -#define SS(fs) 512U - -#elif _MAX_SS == 1024 || _MAX_SS == 2048 || _MAX_SS == 4096 /* Multiple sector size */ -#define SS(fs) ((fs)->s_size) - -#else -#error Sector size must be 512, 1024, 2048 or 4096. - -#endif - - - -/* Type of file name on FatFs API */ - -#if _LFN_UNICODE && _USE_LFN -typedef WCHAR XCHAR; /* Unicode */ -#else -typedef char XCHAR; /* SBCS, DBCS */ -#endif - - - -/* File system object structure */ - -typedef struct _FATFS_ { - BYTE fs_type; /* FAT sub type */ - BYTE drive; /* Physical drive number */ - BYTE csize; /* Number of sectors per cluster */ - BYTE n_fats; /* Number of FAT copies */ - BYTE wflag; /* win[] dirty flag (1:must be written back) */ - BYTE fsi_flag; /* fsinfo dirty flag (1:must be written back) */ - WORD id; /* File system mount ID */ - WORD n_rootdir; /* Number of root directory entries (0 on FAT32) */ -#if _FS_REENTRANT - _SYNC_t sobj; /* Identifier of sync object */ -#endif -#if _MAX_SS != 512 - WORD s_size; /* Sector size */ -#endif -#if !_FS_READONLY - DWORD last_clust; /* Last allocated cluster */ - DWORD free_clust; /* Number of free clusters */ - DWORD fsi_sector; /* fsinfo sector */ -#endif -#if _FS_RPATH - DWORD cdir; /* Current directory (0:root)*/ -#endif - DWORD sects_fat; /* Sectors per fat */ - DWORD max_clust; /* Maximum cluster# + 1. Number of clusters is max_clust - 2 */ - DWORD fatbase; /* FAT start sector */ - DWORD dirbase; /* Root directory start sector (Cluster# on FAT32) */ - DWORD database; /* Data start sector */ - DWORD winsect; /* Current sector appearing in the win[] */ - BYTE win[_MAX_SS];/* Disk access window for Directory/FAT */ -} FATFS; - - - -/* Directory object structure */ - -typedef struct _DIR_ { - FATFS* fs; /* Pointer to the owner file system object */ - WORD id; /* Owner file system mount ID */ - WORD index; /* Current read/write index number */ - DWORD sclust; /* Table start cluster (0:Static table) */ - DWORD clust; /* Current cluster */ - DWORD sect; /* Current sector */ - BYTE* dir; /* Pointer to the current SFN entry in the win[] */ - BYTE* fn; /* Pointer to the SFN (in/out) {file[8],ext[3],status[1]} */ -#if _USE_LFN - WCHAR* lfn; /* Pointer to the LFN working buffer */ - WORD lfn_idx; /* Last matched LFN index number (0xFFFF:No LFN) */ -#endif -} DIR; - - - -/* File object structure */ - -typedef struct _FIL_ { - FATFS* fs; /* Pointer to the owner file system object */ - WORD id; /* Owner file system mount ID */ - BYTE flag; /* File status flags */ - BYTE csect; /* Sector address in the cluster */ - DWORD fptr; /* File R/W pointer */ - DWORD fsize; /* File size */ - DWORD org_clust; /* File start cluster */ - DWORD curr_clust; /* Current cluster */ - DWORD dsect; /* Current data sector */ -#if !_FS_READONLY - DWORD dir_sect; /* Sector containing the directory entry */ - BYTE* dir_ptr; /* Ponter to the directory entry in the window */ -#endif -#if !_FS_TINY - BYTE buf[_MAX_SS];/* File R/W buffer */ -#endif -} FIL; - - - -/* File status structure */ - -typedef struct _FILINFO_ { - DWORD fsize; /* File size */ - WORD fdate; /* Last modified date */ - WORD ftime; /* Last modified time */ - BYTE fattrib; /* Attribute */ - char fname[13]; /* Short file name (8.3 format) */ -#if _USE_LFN - XCHAR* lfname; /* Pointer to the LFN buffer */ - int lfsize; /* Size of LFN buffer [chrs] */ -#endif -} FILINFO; - - - -/* File function return code (FRESULT) */ - -typedef enum { - FR_OK = 0, /* 0 */ - FR_DISK_ERR, /* 1 */ - FR_INT_ERR, /* 2 */ - FR_NOT_READY, /* 3 */ - FR_NO_FILE, /* 4 */ - FR_NO_PATH, /* 5 */ - FR_INVALID_NAME, /* 6 */ - FR_DENIED, /* 7 */ - FR_EXIST, /* 8 */ - FR_INVALID_OBJECT, /* 9 */ - FR_WRITE_PROTECTED, /* 10 */ - FR_INVALID_DRIVE, /* 11 */ - FR_NOT_ENABLED, /* 12 */ - FR_NO_FILESYSTEM, /* 13 */ - FR_MKFS_ABORTED, /* 14 */ - FR_TIMEOUT /* 15 */ -} FRESULT; - - - -/*--------------------------------------------------------------*/ -/* FatFs module application interface */ - -FRESULT f_mount (BYTE, FATFS*); /* Mount/Unmount a logical drive */ -FRESULT f_open (FIL*, const XCHAR*, BYTE); /* Open or create a file */ -FRESULT f_read (FIL*, void*, UINT, UINT*); /* Read data from a file */ -FRESULT f_write (FIL*, const void*, UINT, UINT*); /* Write data to a file */ -FRESULT f_lseek (FIL*, DWORD); /* Move file pointer of a file object */ -FRESULT f_close (FIL*); /* Close an open file object */ -FRESULT f_opendir (DIR*, const XCHAR*); /* Open an existing directory */ -FRESULT f_readdir (DIR*, FILINFO*); /* Read a directory item */ -FRESULT f_stat (const XCHAR*, FILINFO*); /* Get file status */ -FRESULT f_getfree (const XCHAR*, DWORD*, FATFS**); /* Get number of free clusters on the drive */ -FRESULT f_truncate (FIL*); /* Truncate file */ -FRESULT f_sync (FIL*); /* Flush cached data of a writing file */ -FRESULT f_unlink (const XCHAR*); /* Delete an existing file or directory */ -FRESULT f_mkdir (const XCHAR*); /* Create a new directory */ -FRESULT f_chmod (const XCHAR*, BYTE, BYTE); /* Change attriburte of the file/dir */ -FRESULT f_utime (const XCHAR*, const FILINFO*); /* Change timestamp of the file/dir */ -FRESULT f_rename (const XCHAR*, const XCHAR*); /* Rename/Move a file or directory */ -FRESULT f_forward (FIL*, UINT(*)(const BYTE*,UINT), UINT, UINT*); /* Forward data to the stream */ -FRESULT f_mkfs (BYTE, BYTE, WORD); /* Create a file system on the drive */ -FRESULT f_chdir (const XCHAR*); /* Change current directory */ -FRESULT f_chdrive (BYTE); /* Change current drive */ - -#if _USE_STRFUNC -int f_putc (int, FIL*); /* Put a character to the file */ -int f_puts (const char*, FIL*); /* Put a string to the file */ -int f_printf (FIL*, const char*, ...); /* Put a formatted string to the file */ -char* f_gets (char*, int, FIL*); /* Get a string from the file */ -#define f_eof(fp) (((fp)->fptr == (fp)->fsize) ? 1 : 0) -#define f_error(fp) (((fp)->flag & FA__ERROR) ? 1 : 0) -#ifndef EOF -#define EOF -1 -#endif -#endif - - - -/*--------------------------------------------------------------*/ -/* User defined functions */ - -/* Real time clock */ -#if !_FS_READONLY -DWORD get_fattime (void); /* 31-25: Year(0-127 org.1980), 24-21: Month(1-12), 20-16: Day(1-31) */ - /* 15-11: Hour(0-23), 10-5: Minute(0-59), 4-0: Second(0-29 *2) */ -#endif - -/* Unicode - OEM code conversion */ -#if _USE_LFN -WCHAR ff_convert (WCHAR, UINT); -WCHAR ff_wtoupper (WCHAR); -#endif - -/* Sync functions */ -#if _FS_REENTRANT -BOOL ff_cre_syncobj(BYTE, _SYNC_t*); -BOOL ff_del_syncobj(_SYNC_t); -BOOL ff_req_grant(_SYNC_t); -void ff_rel_grant(_SYNC_t); -#endif - - - -/*--------------------------------------------------------------*/ -/* Flags and offset address */ - - -/* File access control and file status flags (FIL.flag) */ - -#define FA_READ 0x01 -#define FA_OPEN_EXISTING 0x00 -#if _FS_READONLY == 0 -#define FA_WRITE 0x02 -#define FA_CREATE_NEW 0x04 -#define FA_CREATE_ALWAYS 0x08 -#define FA_OPEN_ALWAYS 0x10 -#define FA__WRITTEN 0x20 -#define FA__DIRTY 0x40 -#endif -#define FA__ERROR 0x80 - - -/* FAT sub type (FATFS.fs_type) */ - -#define FS_FAT12 1 -#define FS_FAT16 2 -#define FS_FAT32 3 - - -/* File attribute bits for directory entry */ - -#define AM_RDO 0x01 /* Read only */ -#define AM_HID 0x02 /* Hidden */ -#define AM_SYS 0x04 /* System */ -#define AM_VOL 0x08 /* Volume label */ -#define AM_LFN 0x0F /* LFN entry */ -#define AM_DIR 0x10 /* Directory */ -#define AM_ARC 0x20 /* Archive */ -#define AM_MASK 0x3F /* Mask of defined bits */ - - -/* FatFs refers the members in the FAT structures with byte offset instead -/ of structure member because there are incompatibility of the packing option -/ between various compilers. */ - -#define BS_jmpBoot 0 -#define BS_OEMName 3 -#define BPB_BytsPerSec 11 -#define BPB_SecPerClus 13 -#define BPB_RsvdSecCnt 14 -#define BPB_NumFATs 16 -#define BPB_RootEntCnt 17 -#define BPB_TotSec16 19 -#define BPB_Media 21 -#define BPB_FATSz16 22 -#define BPB_SecPerTrk 24 -#define BPB_NumHeads 26 -#define BPB_HiddSec 28 -#define BPB_TotSec32 32 -#define BS_55AA 510 - -#define BS_DrvNum 36 -#define BS_BootSig 38 -#define BS_VolID 39 -#define BS_VolLab 43 -#define BS_FilSysType 54 - -#define BPB_FATSz32 36 -#define BPB_ExtFlags 40 -#define BPB_FSVer 42 -#define BPB_RootClus 44 -#define BPB_FSInfo 48 -#define BPB_BkBootSec 50 -#define BS_DrvNum32 64 -#define BS_BootSig32 66 -#define BS_VolID32 67 -#define BS_VolLab32 71 -#define BS_FilSysType32 82 - -#define FSI_LeadSig 0 -#define FSI_StrucSig 484 -#define FSI_Free_Count 488 -#define FSI_Nxt_Free 492 - -#define MBR_Table 446 - -#define DIR_Name 0 -#define DIR_Attr 11 -#define DIR_NTres 12 -#define DIR_CrtTime 14 -#define DIR_CrtDate 16 -#define DIR_FstClusHI 20 -#define DIR_WrtTime 22 -#define DIR_WrtDate 24 -#define DIR_FstClusLO 26 -#define DIR_FileSize 28 -#define LDIR_Ord 0 -#define LDIR_Attr 11 -#define LDIR_Type 12 -#define LDIR_Chksum 13 -#define LDIR_FstClusLO 26 - - - -/*--------------------------------*/ -/* Multi-byte word access macros */ - -#if _WORD_ACCESS == 1 /* Enable word access to the FAT structure */ -#define LD_WORD(ptr) (WORD)(*(WORD*)(BYTE*)(ptr)) -#define LD_DWORD(ptr) (DWORD)(*(DWORD*)(BYTE*)(ptr)) -#define ST_WORD(ptr,val) *(WORD*)(BYTE*)(ptr)=(WORD)(val) -#define ST_DWORD(ptr,val) *(DWORD*)(BYTE*)(ptr)=(DWORD)(val) -#else /* Use byte-by-byte access to the FAT structure */ -#define LD_WORD(ptr) (WORD)(((WORD)*(BYTE*)((ptr)+1)<<8)|(WORD)*(BYTE*)(ptr)) -#define LD_DWORD(ptr) (DWORD)(((DWORD)*(BYTE*)((ptr)+3)<<24)|((DWORD)*(BYTE*)((ptr)+2)<<16)|((WORD)*(BYTE*)((ptr)+1)<<8)|*(BYTE*)(ptr)) -#define ST_WORD(ptr,val) *(BYTE*)(ptr)=(BYTE)(val); *(BYTE*)((ptr)+1)=(BYTE)((WORD)(val)>>8) -#define ST_DWORD(ptr,val) *(BYTE*)(ptr)=(BYTE)(val); *(BYTE*)((ptr)+1)=(BYTE)((WORD)(val)>>8); *(BYTE*)((ptr)+2)=(BYTE)((DWORD)(val)>>16); *(BYTE*)((ptr)+3)=(BYTE)((DWORD)(val)>>24) -#endif - - -#endif /* _FATFS */ +/*---------------------------------------------------------------------------/ +/ FatFs - FAT file system module include file R0.07e (C)ChaN, 2010 +/----------------------------------------------------------------------------/ +/ FatFs module is a generic FAT file system module for small embedded systems. +/ This is a free software that opened for education, research and commercial +/ developments under license policy of following trems. +/ +/ Copyright (C) 2010, ChaN, all right reserved. +/ +/ * The FatFs module is a free software and there is NO WARRANTY. +/ * No restriction on use. You can use, modify and redistribute it for +/ personal, non-profit or commercial product UNDER YOUR RESPONSIBILITY. +/ * Redistributions of source code must retain the above copyright notice. +/----------------------------------------------------------------------------*/ + +#ifndef _FATFS +#define _FATFS 0x007E + +#include "integer.h" /* Basic integer types */ +#include "ffconf.h" /* FatFs configuration options */ + +#if _FATFS != _FFCONFIG +#error Wrong configuration file (ffconf.h). +#endif + + +/* DBCS code ranges and SBCS extend char conversion table */ + +#if _CODE_PAGE == 932 /* Japanese Shift-JIS */ +#define _DF1S 0x81 /* DBC 1st byte range 1 start */ +#define _DF1E 0x9F /* DBC 1st byte range 1 end */ +#define _DF2S 0xE0 /* DBC 1st byte range 2 start */ +#define _DF2E 0xFC /* DBC 1st byte range 2 end */ +#define _DS1S 0x40 /* DBC 2nd byte range 1 start */ +#define _DS1E 0x7E /* DBC 2nd byte range 1 end */ +#define _DS2S 0x80 /* DBC 2nd byte range 2 start */ +#define _DS2E 0xFC /* DBC 2nd byte range 2 end */ + +#elif _CODE_PAGE == 936 /* Simplified Chinese GBK */ +#define _DF1S 0x81 +#define _DF1E 0xFE +#define _DS1S 0x40 +#define _DS1E 0x7E +#define _DS2S 0x80 +#define _DS2E 0xFE + +#elif _CODE_PAGE == 949 /* Korean */ +#define _DF1S 0x81 +#define _DF1E 0xFE +#define _DS1S 0x41 +#define _DS1E 0x5A +#define _DS2S 0x61 +#define _DS2E 0x7A +#define _DS3S 0x81 +#define _DS3E 0xFE + +#elif _CODE_PAGE == 950 /* Traditional Chinese Big5 */ +#define _DF1S 0x81 +#define _DF1E 0xFE +#define _DS1S 0x40 +#define _DS1E 0x7E +#define _DS2S 0xA1 +#define _DS2E 0xFE + +#elif _CODE_PAGE == 437 /* U.S. (OEM) */ +#define _DF1S 0 +#define _EXCVT {0x80,0x9A,0x90,0x41,0x8E,0x41,0x8F,0x80,0x45,0x45,0x45,0x49,0x49,0x49,0x8E,0x8F,0x90,0x92,0x92,0x4F,0x99,0x4F,0x55,0x55,0x59,0x99,0x9A,0x9B,0x9C,0x9D,0x9E,0x9F, \ + 0x41,0x49,0x4F,0x55,0xA5,0xA5,0xA6,0xA7,0xA8,0xA9,0xAA,0xAB,0xAC,0x21,0xAE,0xAF,0xB0,0xB1,0xB2,0xB3,0xB4,0xB5,0xB6,0xB7,0xB8,0xB9,0xBA,0xBB,0xBC,0xBD,0xBE,0xBF, \ + 0xC0,0xC1,0xC2,0xC3,0xC4,0xC5,0xC6,0xC7,0xC8,0xC9,0xCA,0xCB,0xCC,0xCD,0xCE,0xCF,0xD0,0xD1,0xD2,0xD3,0xD4,0xD5,0xD6,0xD7,0xD8,0xD9,0xDA,0xDB,0xDC,0xDD,0xDE,0xDF, \ + 0xE0,0xE1,0xE2,0xE3,0xE4,0xE5,0xE6,0xE7,0xE8,0xE9,0xEA,0xEB,0xEC,0xED,0xEE,0xEF,0xF0,0xF1,0xF2,0xF3,0xF4,0xF5,0xF6,0xF7,0xF8,0xF9,0xFA,0xFB,0xFC,0xFD,0xFE,0xFF} + +#elif _CODE_PAGE == 720 /* Arabic (OEM) */ +#define _DF1S 0 +#define _EXCVT {0x80,0x81,0x45,0x41,0x84,0x41,0x86,0x43,0x45,0x45,0x45,0x49,0x49,0x8D,0x8E,0x8F,0x90,0x92,0x92,0x93,0x94,0x95,0x49,0x49,0x98,0x99,0x9A,0x9B,0x9C,0x9D,0x9E,0x9F, \ + 0xA0,0xA1,0xA2,0xA3,0xA4,0xA5,0xA6,0xA7,0xA8,0xA9,0xAA,0xAB,0xAC,0xAD,0xAE,0xAF,0xB0,0xB1,0xB2,0xB3,0xB4,0xB5,0xB6,0xB7,0xB8,0xB9,0xBA,0xBB,0xBC,0xBD,0xBE,0xBF, \ + 0xC0,0xC1,0xC2,0xC3,0xC4,0xC5,0xC6,0xC7,0xC8,0xC9,0xCA,0xCB,0xCC,0xCD,0xCE,0xCF,0xD0,0xD1,0xD2,0xD3,0xD4,0xD5,0xD6,0xD7,0xD8,0xD9,0xDA,0xDB,0xDC,0xDD,0xDE,0xDF, \ + 0xE0,0xE1,0xE2,0xE3,0xE4,0xE5,0xE6,0xE7,0xE8,0xE9,0xEA,0xEB,0xEC,0xED,0xEE,0xEF,0xF0,0xF1,0xF2,0xF3,0xF4,0xF5,0xF6,0xF7,0xF8,0xF9,0xFA,0xFB,0xFC,0xFD,0xFE,0xFF} + +#elif _CODE_PAGE == 737 /* Greek (OEM) */ +#define _DF1S 0 +#define _EXCVT {0x80,0x81,0x82,0x83,0x84,0x85,0x86,0x87,0x88,0x89,0x8A,0x8B,0x8C,0x8D,0x8E,0x8F,0x90,0x92,0x92,0x93,0x94,0x95,0x96,0x97,0x80,0x81,0x82,0x83,0x84,0x85,0x86,0x87, \ + 0x88,0x89,0x8A,0x8B,0x8C,0x8D,0x8E,0x8F,0x90,0x91,0xAA,0x92,0x93,0x94,0x95,0x96,0xB0,0xB1,0xB2,0xB3,0xB4,0xB5,0xB6,0xB7,0xB8,0xB9,0xBA,0xBB,0xBC,0xBD,0xBE,0xBF, \ + 0xC0,0xC1,0xC2,0xC3,0xC4,0xC5,0xC6,0xC7,0xC8,0xC9,0xCA,0xCB,0xCC,0xCD,0xCE,0xCF,0xD0,0xD1,0xD2,0xD3,0xD4,0xD5,0xD6,0xD7,0xD8,0xD9,0xDA,0xDB,0xDC,0xDD,0xDE,0xDF, \ + 0x97,0xEA,0xEB,0xEC,0xE4,0xED,0xEE,0xE7,0xE8,0xF1,0xEA,0xEB,0xEC,0xED,0xEE,0xEF,0xF0,0xF1,0xF2,0xF3,0xF4,0xF5,0xF6,0xF7,0xF8,0xF9,0xFA,0xFB,0xFC,0xFD,0xFE,0xFF} + +#elif _CODE_PAGE == 775 /* Baltic (OEM) */ +#define _DF1S 0 +#define _EXCVT {0x80,0x9A,0x91,0xA0,0x8E,0x95,0x8F,0x80,0xAD,0xED,0x8A,0x8A,0xA1,0x8D,0x8E,0x8F,0x90,0x92,0x92,0xE2,0x99,0x95,0x96,0x97,0x97,0x99,0x9A,0x9D,0x9C,0x9D,0x9E,0x9F, \ + 0xA0,0xA1,0xE0,0xA3,0xA3,0xA5,0xA6,0xA7,0xA8,0xA9,0xAA,0xAB,0xAC,0xAD,0xAE,0xAF,0xB0,0xB1,0xB2,0xB3,0xB4,0xB5,0xB6,0xB7,0xB8,0xB9,0xBA,0xBB,0xBC,0xBD,0xBE,0xBF, \ + 0xC0,0xC1,0xC2,0xC3,0xC4,0xC5,0xC6,0xC7,0xC8,0xC9,0xCA,0xCB,0xCC,0xCD,0xCE,0xCF,0xB5,0xB6,0xB7,0xB8,0xBD,0xBE,0xC6,0xC7,0xA5,0xD9,0xDA,0xDB,0xDC,0xDD,0xDE,0xDF, \ + 0xE0,0xE1,0xE2,0xE3,0xE5,0xE5,0xE6,0xE3,0xE8,0xE8,0xEA,0xEA,0xEE,0xED,0xEE,0xEF,0xF0,0xF1,0xF2,0xF3,0xF4,0xF5,0xF6,0xF7,0xF8,0xF9,0xFA,0xFB,0xFC,0xFD,0xFE,0xFF} + +#elif _CODE_PAGE == 850 /* Multilingual Latin 1 (OEM) */ +#define _DF1S 0 +#define _EXCVT {0x80,0x9A,0x90,0xB6,0x8E,0xB7,0x8F,0x80,0xD2,0xD3,0xD4,0xD8,0xD7,0xDE,0x8E,0x8F,0x90,0x92,0x92,0xE2,0x99,0xE3,0xEA,0xEB,0x59,0x99,0x9A,0x9D,0x9C,0x9D,0x9E,0x9F, \ + 0xB5,0xD6,0xE0,0xE9,0xA5,0xA5,0xA6,0xA7,0xA8,0xA9,0xAA,0xAB,0xAC,0x21,0xAE,0xAF,0xB0,0xB1,0xB2,0xB3,0xB4,0xB5,0xB6,0xB7,0xB8,0xB9,0xBA,0xBB,0xBC,0xBD,0xBE,0xBF, \ + 0xC0,0xC1,0xC2,0xC3,0xC4,0xC5,0xC7,0xC7,0xC8,0xC9,0xCA,0xCB,0xCC,0xCD,0xCE,0xCF,0xD0,0xD1,0xD2,0xD3,0xD4,0xD5,0xD6,0xD7,0xD8,0xD9,0xDA,0xDB,0xDC,0xDD,0xDE,0xDF, \ + 0xE0,0xE1,0xE2,0xE3,0xE5,0xE5,0xE6,0xE7,0xE7,0xE9,0xEA,0xEB,0xED,0xED,0xEE,0xEF,0xF0,0xF1,0xF2,0xF3,0xF4,0xF5,0xF6,0xF7,0xF8,0xF9,0xFA,0xFB,0xFC,0xFD,0xFE,0xFF} + +#elif _CODE_PAGE == 852 /* Latin 2 (OEM) */ +#define _DF1S 0 +#define _EXCVT {0x80,0x9A,0x90,0xB6,0x8E,0xDE,0x8F,0x80,0x9D,0xD3,0x8A,0x8A,0xD7,0x8D,0x8E,0x8F,0x90,0x91,0x91,0xE2,0x99,0x95,0x95,0x97,0x97,0x99,0x9A,0x9B,0x9B,0x9D,0x9E,0x9F, \ + 0xB5,0xD6,0xE0,0xE9,0xA4,0xA4,0xA6,0xA6,0xA8,0xA8,0xAA,0x8D,0xAC,0xB8,0xAE,0xAF,0xB0,0xB1,0xB2,0xB3,0xB4,0xB5,0xB6,0xB7,0xB8,0xB9,0xBA,0xBB,0xBC,0xBD,0xBD,0xBF, \ + 0xC0,0xC1,0xC2,0xC3,0xC4,0xC5,0xC6,0xC6,0xC8,0xC9,0xCA,0xCB,0xCC,0xCD,0xCE,0xCF,0xD1,0xD1,0xD2,0xD3,0xD2,0xD5,0xD6,0xD7,0xB7,0xD9,0xDA,0xDB,0xDC,0xDD,0xDE,0xDF, \ + 0xE0,0xE1,0xE2,0xE3,0xE3,0xD5,0xE6,0xE6,0xE8,0xE9,0xE8,0xEB,0xED,0xED,0xDD,0xEF,0xF0,0xF1,0xF2,0xF3,0xF4,0xF5,0xF6,0xF7,0xF8,0xF9,0xFA,0xEB,0xFC,0xFC,0xFE,0xFF} + +#elif _CODE_PAGE == 855 /* Cyrillic (OEM) */ +#define _DF1S 0 +#define _EXCVT {0x81,0x81,0x83,0x83,0x85,0x85,0x87,0x87,0x89,0x89,0x8B,0x8B,0x8D,0x8D,0x8F,0x8F,0x91,0x91,0x93,0x93,0x95,0x95,0x97,0x97,0x99,0x99,0x9B,0x9B,0x9D,0x9D,0x9F,0x9F, \ + 0xA1,0xA1,0xA3,0xA3,0xA5,0xA5,0xA7,0xA7,0xA9,0xA9,0xAB,0xAB,0xAD,0xAD,0xAE,0xAF,0xB0,0xB1,0xB2,0xB3,0xB4,0xB6,0xB6,0xB8,0xB8,0xB9,0xBA,0xBB,0xBC,0xBE,0xBE,0xBF, \ + 0xC0,0xC1,0xC2,0xC3,0xC4,0xC5,0xC7,0xC7,0xC8,0xC9,0xCA,0xCB,0xCC,0xCD,0xCE,0xCF,0xD1,0xD1,0xD3,0xD3,0xD5,0xD5,0xD7,0xD7,0xDD,0xD9,0xDA,0xDB,0xDC,0xDD,0xE0,0xDF, \ + 0xE0,0xE2,0xE2,0xE4,0xE4,0xE6,0xE6,0xE8,0xE8,0xEA,0xEA,0xEC,0xEC,0xEE,0xEE,0xEF,0xF0,0xF2,0xF2,0xF4,0xF4,0xF6,0xF6,0xF8,0xF8,0xFA,0xFA,0xFC,0xFC,0xFD,0xFE,0xFF} + +#elif _CODE_PAGE == 857 /* Turkish (OEM) */ +#define _DF1S 0 +#define _EXCVT {0x80,0x9A,0x90,0xB6,0x8E,0xB7,0x8F,0x80,0xD2,0xD3,0xD4,0xD8,0xD7,0x98,0x8E,0x8F,0x90,0x92,0x92,0xE2,0x99,0xE3,0xEA,0xEB,0x98,0x99,0x9A,0x9D,0x9C,0x9D,0x9E,0x9E, \ + 0xB5,0xD6,0xE0,0xE9,0xA5,0xA5,0xA6,0xA6,0xA8,0xA9,0xAA,0xAB,0xAC,0x21,0xAE,0xAF,0xB0,0xB1,0xB2,0xB3,0xB4,0xB5,0xB6,0xB7,0xB8,0xB9,0xBA,0xBB,0xBC,0xBD,0xBE,0xBF, \ + 0xC0,0xC1,0xC2,0xC3,0xC4,0xC5,0xC7,0xC7,0xC8,0xC9,0xCA,0xCB,0xCC,0xCD,0xCE,0xCF,0xD0,0xD1,0xD2,0xD3,0xD4,0xD5,0xD6,0xD7,0xD8,0xD9,0xDA,0xDB,0xDC,0xDD,0xDE,0xDF, \ + 0xE0,0xE1,0xE2,0xE3,0xE5,0xE5,0xE6,0xE7,0xE8,0xE9,0xEA,0xEB,0xDE,0x59,0xEE,0xEF,0xF0,0xF1,0xF2,0xF3,0xF4,0xF5,0xF6,0xF7,0xF8,0xF9,0xFA,0xFB,0xFC,0xFD,0xFE,0xFF} + +#elif _CODE_PAGE == 858 /* Multilingual Latin 1 + Euro (OEM) */ +#define _DF1S 0 +#define _EXCVT {0x80,0x9A,0x90,0xB6,0x8E,0xB7,0x8F,0x80,0xD2,0xD3,0xD4,0xD8,0xD7,0xDE,0x8E,0x8F,0x90,0x92,0x92,0xE2,0x99,0xE3,0xEA,0xEB,0x59,0x99,0x9A,0x9D,0x9C,0x9D,0x9E,0x9F, \ + 0xB5,0xD6,0xE0,0xE9,0xA5,0xA5,0xA6,0xA7,0xA8,0xA9,0xAA,0xAB,0xAC,0x21,0xAE,0xAF,0xB0,0xB1,0xB2,0xB3,0xB4,0xB5,0xB6,0xB7,0xB8,0xB9,0xBA,0xBB,0xBC,0xBD,0xBE,0xBF, \ + 0xC0,0xC1,0xC2,0xC3,0xC4,0xC5,0xC7,0xC7,0xC8,0xC9,0xCA,0xCB,0xCC,0xCD,0xCE,0xCF,0xD1,0xD1,0xD2,0xD3,0xD4,0xD5,0xD6,0xD7,0xD8,0xD9,0xDA,0xDB,0xDC,0xDD,0xDE,0xDF, \ + 0xE0,0xE1,0xE2,0xE3,0xE5,0xE5,0xE6,0xE7,0xE7,0xE9,0xEA,0xEB,0xED,0xED,0xEE,0xEF,0xF0,0xF1,0xF2,0xF3,0xF4,0xF5,0xF6,0xF7,0xF8,0xF9,0xFA,0xFB,0xFC,0xFD,0xFE,0xFF} + +#elif _CODE_PAGE == 862 /* Hebrew (OEM) */ +#define _DF1S 0 +#define _EXCVT {0x80,0x81,0x82,0x83,0x84,0x85,0x86,0x87,0x88,0x89,0x8A,0x8B,0x8C,0x8D,0x8E,0x8F,0x90,0x91,0x92,0x93,0x94,0x95,0x96,0x97,0x98,0x99,0x9A,0x9B,0x9C,0x9D,0x9E,0x9F, \ + 0x41,0x49,0x4F,0x55,0xA5,0xA5,0xA6,0xA7,0xA8,0xA9,0xAA,0xAB,0xAC,0x21,0xAE,0xAF,0xB0,0xB1,0xB2,0xB3,0xB4,0xB5,0xB6,0xB7,0xB8,0xB9,0xBA,0xBB,0xBC,0xBD,0xBE,0xBF, \ + 0xC0,0xC1,0xC2,0xC3,0xC4,0xC5,0xC6,0xC7,0xC8,0xC9,0xCA,0xCB,0xCC,0xCD,0xCE,0xCF,0xD0,0xD1,0xD2,0xD3,0xD4,0xD5,0xD6,0xD7,0xD8,0xD9,0xDA,0xDB,0xDC,0xDD,0xDE,0xDF, \ + 0xE0,0xE1,0xE2,0xE3,0xE4,0xE5,0xE6,0xE7,0xE8,0xE9,0xEA,0xEB,0xEC,0xED,0xEE,0xEF,0xF0,0xF1,0xF2,0xF3,0xF4,0xF5,0xF6,0xF7,0xF8,0xF9,0xFA,0xFB,0xFC,0xFD,0xFE,0xFF} + +#elif _CODE_PAGE == 866 /* Russian (OEM) */ +#define _DF1S 0 +#define _EXCVT {0x80,0x81,0x82,0x83,0x84,0x85,0x86,0x87,0x88,0x89,0x8A,0x8B,0x8C,0x8D,0x8E,0x8F,0x90,0x91,0x92,0x93,0x94,0x95,0x96,0x97,0x98,0x99,0x9A,0x9B,0x9C,0x9D,0x9E,0x9F, \ + 0x80,0x81,0x82,0x83,0x84,0x85,0x86,0x87,0x88,0x89,0x8A,0x8B,0x8C,0x8D,0x8E,0x8F,0xB0,0xB1,0xB2,0xB3,0xB4,0xB5,0xB6,0xB7,0xB8,0xB9,0xBA,0xBB,0xBC,0xBD,0xBE,0xBF, \ + 0xC0,0xC1,0xC2,0xC3,0xC4,0xC5,0xC6,0xC7,0xC8,0xC9,0xCA,0xCB,0xCC,0xCD,0xCE,0xCF,0xD0,0xD1,0xD2,0xD3,0xD4,0xD5,0xD6,0xD7,0xD8,0xD9,0xDA,0xDB,0xDC,0xDD,0xDE,0xDF, \ + 0x90,0x91,0x92,0x93,0x9d,0x95,0x96,0x97,0x98,0x99,0x9A,0x9B,0x9C,0x9D,0x9E,0x9F,0xF0,0xF0,0xF2,0xF2,0xF4,0xF4,0xF6,0xF6,0xF8,0xF9,0xFA,0xFB,0xFC,0xFD,0xFE,0xFF} + +#elif _CODE_PAGE == 874 /* Thai (OEM, Windows) */ +#define _DF1S 0 +#define _EXCVT {0x80,0x81,0x82,0x83,0x84,0x85,0x86,0x87,0x88,0x89,0x8A,0x8B,0x8C,0x8D,0x8E,0x8F,0x90,0x91,0x92,0x93,0x94,0x95,0x96,0x97,0x98,0x99,0x9A,0x9B,0x9C,0x9D,0x9E,0x9F, \ + 0xA0,0xA1,0xA2,0xA3,0xA4,0xA5,0xA6,0xA7,0xA8,0xA9,0xAA,0xAB,0xAC,0xAD,0xAE,0xAF,0xB0,0xB1,0xB2,0xB3,0xB4,0xB5,0xB6,0xB7,0xB8,0xB9,0xBA,0xBB,0xBC,0xBD,0xBE,0xBF, \ + 0xC0,0xC1,0xC2,0xC3,0xC4,0xC5,0xC6,0xC7,0xC8,0xC9,0xCA,0xCB,0xCC,0xCD,0xCE,0xCF,0xD0,0xD1,0xD2,0xD3,0xD4,0xD5,0xD6,0xD7,0xD8,0xD9,0xDA,0xDB,0xDC,0xDD,0xDE,0xDF, \ + 0xE0,0xE1,0xE2,0xE3,0xE4,0xE5,0xE6,0xE7,0xE8,0xE9,0xEA,0xEB,0xEC,0xED,0xEE,0xEF,0xF0,0xF1,0xF2,0xF3,0xF4,0xF5,0xF6,0xF7,0xF8,0xF9,0xFA,0xFB,0xFC,0xFD,0xFE,0xFF} + +#elif _CODE_PAGE == 1250 /* Central Europe (Windows) */ +#define _DF1S 0 +#define _EXCVT {0x80,0x81,0x82,0x83,0x84,0x85,0x86,0x87,0x88,0x89,0x8A,0x8B,0x8C,0x8D,0x8E,0x8F,0x90,0x91,0x92,0x93,0x94,0x95,0x96,0x97,0x98,0x99,0x8A,0x9B,0x8C,0x8D,0x8E,0x8F, \ + 0xA0,0xA1,0xA2,0xA3,0xA4,0xA5,0xA6,0xA7,0xA8,0xA9,0xAA,0xAB,0xAC,0xAD,0xAE,0xAF,0xB0,0xB1,0xB2,0xA3,0xB4,0xB5,0xB6,0xB7,0xB8,0xA5,0xAA,0xBB,0xBC,0xBD,0xBC,0xAF, \ + 0xC0,0xC1,0xC2,0xC3,0xC4,0xC5,0xC6,0xC7,0xC8,0xC9,0xCA,0xCB,0xCC,0xCD,0xCE,0xCF,0xD0,0xD1,0xD2,0xD3,0xD4,0xD5,0xD6,0xD7,0xD8,0xD9,0xDA,0xDB,0xDC,0xDD,0xDE,0xDF, \ + 0xC0,0xC1,0xC2,0xC3,0xC4,0xC5,0xC6,0xC7,0xC8,0xC9,0xCA,0xCB,0xCC,0xCD,0xCE,0xCF,0xD0,0xD1,0xD2,0xD3,0xD4,0xD5,0xD6,0xF7,0xD8,0xD9,0xDA,0xDB,0xDC,0xDD,0xDE,0xFF} + +#elif _CODE_PAGE == 1251 /* Cyrillic (Windows) */ +#define _DF1S 0 +#define _EXCVT {0x80,0x81,0x82,0x82,0x84,0x85,0x86,0x87,0x88,0x89,0x8A,0x8B,0x8C,0x8D,0x8E,0x8F,0x80,0x91,0x92,0x93,0x94,0x95,0x96,0x97,0x98,0x99,0x8A,0x9B,0x8C,0x8D,0x8E,0x8F, \ + 0xA0,0xA2,0xA2,0xA3,0xA4,0xA5,0xA6,0xA7,0xA8,0xA9,0xAA,0xAB,0xAC,0xAD,0xAE,0xAF,0xB0,0xB1,0xB2,0xB2,0xA5,0xB5,0xB6,0xB7,0xA8,0xB9,0xAA,0xBB,0xA3,0xBD,0xBD,0xAF, \ + 0xC0,0xC1,0xC2,0xC3,0xC4,0xC5,0xC6,0xC7,0xC8,0xC9,0xCA,0xCB,0xCC,0xCD,0xCE,0xCF,0xD0,0xD1,0xD2,0xD3,0xD4,0xD5,0xD6,0xD7,0xD8,0xD9,0xDA,0xDB,0xDC,0xDD,0xDE,0xDF, \ + 0xC0,0xC1,0xC2,0xC3,0xC4,0xC5,0xC6,0xC7,0xC8,0xC9,0xCA,0xCB,0xCC,0xCD,0xCE,0xCF,0xD0,0xD1,0xD2,0xD3,0xD4,0xD5,0xD6,0xD7,0xD8,0xD9,0xDA,0xDB,0xDC,0xDD,0xDE,0xDF} + +#elif _CODE_PAGE == 1252 /* Latin 1 (Windows) */ +#define _DF1S 0 +#define _EXCVT {0x80,0x81,0x82,0x83,0x84,0x85,0x86,0x87,0x88,0x89,0x8A,0x8B,0x8C,0x8D,0x8E,0x8F,0x90,0x91,0x92,0x93,0x94,0x95,0x96,0x97,0x98,0x99,0xAd,0x9B,0x8C,0x9D,0xAE,0x9F, \ + 0xA0,0x21,0xA2,0xA3,0xA4,0xA5,0xA6,0xA7,0xA8,0xA9,0xAA,0xAB,0xAC,0xAD,0xAE,0xAF,0xB0,0xB1,0xB2,0xB3,0xB4,0xB5,0xB6,0xB7,0xB8,0xB9,0xBA,0xBB,0xBC,0xBD,0xBE,0xBF, \ + 0xC0,0xC1,0xC2,0xC3,0xC4,0xC5,0xC6,0xC7,0xC8,0xC9,0xCA,0xCB,0xCC,0xCD,0xCE,0xCF,0xD0,0xD1,0xD2,0xD3,0xD4,0xD5,0xD6,0xD7,0xD8,0xD9,0xDA,0xDB,0xDC,0xDD,0xDE,0xDF, \ + 0xC0,0xC1,0xC2,0xC3,0xC4,0xC5,0xC6,0xC7,0xC8,0xC9,0xCA,0xCB,0xCC,0xCD,0xCE,0xCF,0xD0,0xD1,0xD2,0xD3,0xD4,0xD5,0xD6,0xF7,0xD8,0xD9,0xDA,0xDB,0xDC,0xDD,0xDE,0x9F} + +#elif _CODE_PAGE == 1253 /* Greek (Windows) */ +#define _DF1S 0 +#define _EXCVT {0x80,0x81,0x82,0x83,0x84,0x85,0x86,0x87,0x88,0x89,0x8A,0x8B,0x8C,0x8D,0x8E,0x8F,0x90,0x91,0x92,0x93,0x94,0x95,0x96,0x97,0x98,0x99,0x9A,0x9B,0x9C,0x9D,0x9E,0x9F, \ + 0xA0,0xA1,0xA2,0xA3,0xA4,0xA5,0xA6,0xA7,0xA8,0xA9,0xAA,0xAB,0xAC,0xAD,0xAE,0xAF,0xB0,0xB1,0xB2,0xB3,0xB4,0xB5,0xB6,0xB7,0xB8,0xB9,0xBA,0xBB,0xBC,0xBD,0xBE,0xBF, \ + 0xC0,0xC1,0xC2,0xC3,0xC4,0xC5,0xC6,0xC7,0xC8,0xC9,0xCA,0xCB,0xCC,0xCD,0xCE,0xCF,0xD0,0xD1,0xD2,0xD3,0xD4,0xD5,0xD6,0xD7,0xD8,0xD9,0xDA,0xDB,0xA2,0xB8,0xB9,0xBA, \ + 0xE0,0xC1,0xC2,0xC3,0xC4,0xC5,0xC6,0xC7,0xC8,0xC9,0xCA,0xCB,0xCC,0xCD,0xCE,0xCF,0xD0,0xD1,0xF2,0xD3,0xD4,0xD5,0xD6,0xD7,0xD8,0xD9,0xDA,0xFB,0xBC,0xFD,0xBF,0xFF} + +#elif _CODE_PAGE == 1254 /* Turkish (Windows) */ +#define _DF1S 0 +#define _EXCVT {0x80,0x81,0x82,0x83,0x84,0x85,0x86,0x87,0x88,0x89,0x8A,0x8B,0x8C,0x8D,0x8E,0x8F,0x90,0x91,0x92,0x93,0x94,0x95,0x96,0x97,0x98,0x99,0x8A,0x9B,0x8C,0x9D,0x9E,0x9F, \ + 0xA0,0x21,0xA2,0xA3,0xA4,0xA5,0xA6,0xA7,0xA8,0xA9,0xAA,0xAB,0xAC,0xAD,0xAE,0xAF,0xB0,0xB1,0xB2,0xB3,0xB4,0xB5,0xB6,0xB7,0xB8,0xB9,0xBA,0xBB,0xBC,0xBD,0xBE,0xBF, \ + 0xC0,0xC1,0xC2,0xC3,0xC4,0xC5,0xC6,0xC7,0xC8,0xC9,0xCA,0xCB,0xCC,0xCD,0xCE,0xCF,0xD0,0xD1,0xD2,0xD3,0xD4,0xD5,0xD6,0xD7,0xD8,0xD9,0xDA,0xDB,0xDC,0xDD,0xDE,0xDF, \ + 0xC0,0xC1,0xC2,0xC3,0xC4,0xC5,0xC6,0xC7,0xC8,0xC9,0xCA,0xCB,0xCC,0xCD,0xCE,0xCF,0xD0,0xD1,0xD2,0xD3,0xD4,0xD5,0xD6,0xF7,0xD8,0xD9,0xDA,0xDB,0xDC,0xDD,0xDE,0x9F} + +#elif _CODE_PAGE == 1255 /* Hebrew (Windows) */ +#define _DF1S 0 +#define _EXCVT {0x80,0x81,0x82,0x83,0x84,0x85,0x86,0x87,0x88,0x89,0x8A,0x8B,0x8C,0x8D,0x8E,0x8F,0x90,0x91,0x92,0x93,0x94,0x95,0x96,0x97,0x98,0x99,0x9A,0x9B,0x9C,0x9D,0x9E,0x9F, \ + 0xA0,0x21,0xA2,0xA3,0xA4,0xA5,0xA6,0xA7,0xA8,0xA9,0xAA,0xAB,0xAC,0xAD,0xAE,0xAF,0xB0,0xB1,0xB2,0xB3,0xB4,0xB5,0xB6,0xB7,0xB8,0xB9,0xBA,0xBB,0xBC,0xBD,0xBE,0xBF, \ + 0xC0,0xC1,0xC2,0xC3,0xC4,0xC5,0xC6,0xC7,0xC8,0xC9,0xCA,0xCB,0xCC,0xCD,0xCE,0xCF,0xD0,0xD1,0xD2,0xD3,0xD4,0xD5,0xD6,0xD7,0xD8,0xD9,0xDA,0xDB,0xDC,0xDD,0xDE,0xDF, \ + 0xE0,0xE1,0xE2,0xE3,0xE4,0xE5,0xE6,0xE7,0xE8,0xE9,0xEA,0xEB,0xEC,0xED,0xEE,0xEF,0xF0,0xF1,0xF2,0xF3,0xF4,0xF5,0xF6,0xF7,0xF8,0xF9,0xFA,0xFB,0xFC,0xFD,0xFE,0xFF} + +#elif _CODE_PAGE == 1256 /* Arabic (Windows) */ +#define _DF1S 0 +#define _EXCVT {0x80,0x81,0x82,0x83,0x84,0x85,0x86,0x87,0x88,0x89,0x8A,0x8B,0x8C,0x8D,0x8E,0x8F,0x90,0x91,0x92,0x93,0x94,0x95,0x96,0x97,0x98,0x99,0x9A,0x9B,0x8C,0x9D,0x9E,0x9F, \ + 0xA0,0xA1,0xA2,0xA3,0xA4,0xA5,0xA6,0xA7,0xA8,0xA9,0xAA,0xAB,0xAC,0xAD,0xAE,0xAF,0xB0,0xB1,0xB2,0xB3,0xB4,0xB5,0xB6,0xB7,0xB8,0xB9,0xBA,0xBB,0xBC,0xBD,0xBE,0xBF, \ + 0xC0,0xC1,0xC2,0xC3,0xC4,0xC5,0xC6,0xC7,0xC8,0xC9,0xCA,0xCB,0xCC,0xCD,0xCE,0xCF,0xD0,0xD1,0xD2,0xD3,0xD4,0xD5,0xD6,0xD7,0xD8,0xD9,0xDA,0xDB,0xDC,0xDD,0xDE,0xDF, \ + 0x41,0xE1,0x41,0xE3,0xE4,0xE5,0xE6,0x43,0x45,0x45,0x45,0x45,0xEC,0xED,0x49,0x49,0xF0,0xF1,0xF2,0xF3,0x4F,0xF5,0xF6,0xF7,0xF8,0x55,0xFA,0x55,0x55,0xFD,0xFE,0xFF} + +#elif _CODE_PAGE == 1257 /* Baltic (Windows) */ +#define _DF1S 0 +#define _EXCVT {0x80,0x81,0x82,0x83,0x84,0x85,0x86,0x87,0x88,0x89,0x8A,0x8B,0x8C,0x8D,0x8E,0x8F,0x90,0x91,0x92,0x93,0x94,0x95,0x96,0x97,0x98,0x99,0x9A,0x9B,0x9C,0x9D,0x9E,0x9F, \ + 0xA0,0xA1,0xA2,0xA3,0xA4,0xA5,0xA6,0xA7,0xA8,0xA9,0xAA,0xAB,0xAC,0xAD,0xAE,0xAF,0xB0,0xB1,0xB2,0xB3,0xB4,0xB5,0xB6,0xB7,0xA8,0xB9,0xAA,0xBB,0xBC,0xBD,0xBE,0xAF, \ + 0xC0,0xC1,0xC2,0xC3,0xC4,0xC5,0xC6,0xC7,0xC8,0xC9,0xCA,0xCB,0xCC,0xCD,0xCE,0xCF,0xD0,0xD1,0xD2,0xD3,0xD4,0xD5,0xD6,0xD7,0xD8,0xD9,0xDA,0xDB,0xDC,0xDD,0xDE,0xDF, \ + 0xC0,0xC1,0xC2,0xC3,0xC4,0xC5,0xC6,0xC7,0xC8,0xC9,0xCA,0xCB,0xCC,0xCD,0xCE,0xCF,0xD0,0xD1,0xD2,0xD3,0xD4,0xD5,0xD6,0xF7,0xD8,0xD9,0xDA,0xDB,0xDC,0xDD,0xDE,0xFF} + +#elif _CODE_PAGE == 1258 /* Vietnam (OEM, Windows) */ +#define _DF1S 0 +#define _EXCVT {0x80,0x81,0x82,0x83,0x84,0x85,0x86,0x87,0x88,0x89,0x8A,0x8B,0x8C,0x8D,0x8E,0x8F,0x90,0x91,0x92,0x93,0x94,0x95,0x96,0x97,0x98,0x99,0x9A,0x9B,0xAC,0x9D,0x9E,0x9F, \ + 0xA0,0x21,0xA2,0xA3,0xA4,0xA5,0xA6,0xA7,0xA8,0xA9,0xAA,0xAB,0xAC,0xAD,0xAE,0xAF,0xB0,0xB1,0xB2,0xB3,0xB4,0xB5,0xB6,0xB7,0xB8,0xB9,0xBA,0xBB,0xBC,0xBD,0xBE,0xBF, \ + 0xC0,0xC1,0xC2,0xC3,0xC4,0xC5,0xC6,0xC7,0xC8,0xC9,0xCA,0xCB,0xCC,0xCD,0xCE,0xCF,0xD0,0xD1,0xD2,0xD3,0xD4,0xD5,0xD6,0xD7,0xD8,0xD9,0xDA,0xDB,0xDC,0xDD,0xDE,0xDF, \ + 0xC0,0xC1,0xC2,0xC3,0xC4,0xC5,0xC6,0xC7,0xC8,0xC9,0xCA,0xCB,0xEC,0xCD,0xCE,0xCF,0xD0,0xD1,0xF2,0xD3,0xD4,0xD5,0xD6,0xF7,0xD8,0xD9,0xDA,0xDB,0xDC,0xDD,0xFE,0x9F} + +#elif _CODE_PAGE == 1 /* ASCII (for only non-LFN cfg) */ +#define _DF1S 0 + +#else +#error Unknown code page + +#endif + + + +/* Character code support macros */ + +#define IsUpper(c) (((c)>='A')&&((c)<='Z')) +#define IsLower(c) (((c)>='a')&&((c)<='z')) + +#if _DF1S /* DBCS configuration */ + +#ifdef _DF2S /* Two 1st byte areas */ +#define IsDBCS1(c) (((BYTE)(c) >= _DF1S && (BYTE)(c) <= _DF1E) || ((BYTE)(c) >= _DF2S && (BYTE)(c) <= _DF2E)) +#else /* One 1st byte area */ +#define IsDBCS1(c) ((BYTE)(c) >= _DF1S && (BYTE)(c) <= _DF1E) +#endif + +#ifdef _DS3S /* Three 2nd byte areas */ +#define IsDBCS2(c) (((BYTE)(c) >= _DS1S && (BYTE)(c) <= _DS1E) || ((BYTE)(c) >= _DS2S && (BYTE)(c) <= _DS2E) || ((BYTE)(c) >= _DS3S && (BYTE)(c) <= _DS3E)) +#else /* Two 2nd byte areas */ +#define IsDBCS2(c) (((BYTE)(c) >= _DS1S && (BYTE)(c) <= _DS1E) || ((BYTE)(c) >= _DS2S && (BYTE)(c) <= _DS2E)) +#endif + +#else /* SBCS configuration */ + +#define IsDBCS1(c) 0 +#define IsDBCS2(c) 0 + +#endif /* _DF1S */ + + + +/* Definitions corresponds to multi partition */ + +#if _MULTI_PARTITION /* Multiple partition configuration */ + +typedef struct _PARTITION { + BYTE pd; /* Physical drive# */ + BYTE pt; /* Partition # (0-3) */ +} PARTITION; + +extern +const PARTITION Drives[]; /* Logical drive# to physical location conversion table */ +#define LD2PD(drv) (Drives[drv].pd) /* Get physical drive# */ +#define LD2PT(drv) (Drives[drv].pt) /* Get partition# */ + +#else /* Single partition configuration */ + +#define LD2PD(drv) (drv) /* Physical drive# is equal to the logical drive# */ +#define LD2PT(drv) 0 /* Always mounts the 1st partition */ + +#endif + + + +/* Definitions corresponds to multiple sector size */ + +#if _MAX_SS == 512 /* Single sector size */ +#define SS(fs) 512U + +#elif _MAX_SS == 1024 || _MAX_SS == 2048 || _MAX_SS == 4096 /* Multiple sector size */ +#define SS(fs) ((fs)->s_size) + +#else +#error Sector size must be 512, 1024, 2048 or 4096. + +#endif + + + +/* Type of file name on FatFs API */ + +#if _LFN_UNICODE && _USE_LFN +typedef WCHAR XCHAR; /* Unicode */ +#else +typedef char XCHAR; /* SBCS, DBCS */ +#endif + + + +/* File system object structure */ + +typedef struct _FATFS_ { + BYTE fs_type; /* FAT sub type */ + BYTE drive; /* Physical drive number */ + BYTE csize; /* Number of sectors per cluster */ + BYTE n_fats; /* Number of FAT copies */ + BYTE wflag; /* win[] dirty flag (1:must be written back) */ + BYTE fsi_flag; /* fsinfo dirty flag (1:must be written back) */ + WORD id; /* File system mount ID */ + WORD n_rootdir; /* Number of root directory entries (0 on FAT32) */ +#if _FS_REENTRANT + _SYNC_t sobj; /* Identifier of sync object */ +#endif +#if _MAX_SS != 512 + WORD s_size; /* Sector size */ +#endif +#if !_FS_READONLY + DWORD last_clust; /* Last allocated cluster */ + DWORD free_clust; /* Number of free clusters */ + DWORD fsi_sector; /* fsinfo sector */ +#endif +#if _FS_RPATH + DWORD cdir; /* Current directory (0:root)*/ +#endif + DWORD sects_fat; /* Sectors per fat */ + DWORD max_clust; /* Maximum cluster# + 1. Number of clusters is max_clust - 2 */ + DWORD fatbase; /* FAT start sector */ + DWORD dirbase; /* Root directory start sector (Cluster# on FAT32) */ + DWORD database; /* Data start sector */ + DWORD winsect; /* Current sector appearing in the win[] */ + BYTE win[_MAX_SS];/* Disk access window for Directory/FAT */ +} FATFS; + + + +/* Directory object structure */ + +typedef struct _DIR_ { + FATFS* fs; /* Pointer to the owner file system object */ + WORD id; /* Owner file system mount ID */ + WORD index; /* Current read/write index number */ + DWORD sclust; /* Table start cluster (0:Static table) */ + DWORD clust; /* Current cluster */ + DWORD sect; /* Current sector */ + BYTE* dir; /* Pointer to the current SFN entry in the win[] */ + BYTE* fn; /* Pointer to the SFN (in/out) {file[8],ext[3],status[1]} */ +#if _USE_LFN + WCHAR* lfn; /* Pointer to the LFN working buffer */ + WORD lfn_idx; /* Last matched LFN index number (0xFFFF:No LFN) */ +#endif +} DIR; + + + +/* File object structure */ + +typedef struct _FIL_ { + FATFS* fs; /* Pointer to the owner file system object */ + WORD id; /* Owner file system mount ID */ + BYTE flag; /* File status flags */ + BYTE csect; /* Sector address in the cluster */ + DWORD fptr; /* File R/W pointer */ + DWORD fsize; /* File size */ + DWORD org_clust; /* File start cluster */ + DWORD curr_clust; /* Current cluster */ + DWORD dsect; /* Current data sector */ +#if !_FS_READONLY + DWORD dir_sect; /* Sector containing the directory entry */ + BYTE* dir_ptr; /* Ponter to the directory entry in the window */ +#endif +#if !_FS_TINY + BYTE buf[_MAX_SS];/* File R/W buffer */ +#endif +} FIL; + + + +/* File status structure */ + +typedef struct _FILINFO_ { + DWORD fsize; /* File size */ + WORD fdate; /* Last modified date */ + WORD ftime; /* Last modified time */ + BYTE fattrib; /* Attribute */ + char fname[13]; /* Short file name (8.3 format) */ +#if _USE_LFN + XCHAR* lfname; /* Pointer to the LFN buffer */ + int lfsize; /* Size of LFN buffer [chrs] */ +#endif +} FILINFO; + + + +/* File function return code (FRESULT) */ + +typedef enum { + FR_OK = 0, /* 0 */ + FR_DISK_ERR, /* 1 */ + FR_INT_ERR, /* 2 */ + FR_NOT_READY, /* 3 */ + FR_NO_FILE, /* 4 */ + FR_NO_PATH, /* 5 */ + FR_INVALID_NAME, /* 6 */ + FR_DENIED, /* 7 */ + FR_EXIST, /* 8 */ + FR_INVALID_OBJECT, /* 9 */ + FR_WRITE_PROTECTED, /* 10 */ + FR_INVALID_DRIVE, /* 11 */ + FR_NOT_ENABLED, /* 12 */ + FR_NO_FILESYSTEM, /* 13 */ + FR_MKFS_ABORTED, /* 14 */ + FR_TIMEOUT /* 15 */ +} FRESULT; + + + +/*--------------------------------------------------------------*/ +/* FatFs module application interface */ + +FRESULT f_mount (BYTE, FATFS*); /* Mount/Unmount a logical drive */ +FRESULT f_open (FIL*, const XCHAR*, BYTE); /* Open or create a file */ +FRESULT f_read (FIL*, void*, UINT, UINT*); /* Read data from a file */ +FRESULT f_write (FIL*, const void*, UINT, UINT*); /* Write data to a file */ +FRESULT f_lseek (FIL*, DWORD); /* Move file pointer of a file object */ +FRESULT f_close (FIL*); /* Close an open file object */ +FRESULT f_opendir (DIR*, const XCHAR*); /* Open an existing directory */ +FRESULT f_readdir (DIR*, FILINFO*); /* Read a directory item */ +FRESULT f_stat (const XCHAR*, FILINFO*); /* Get file status */ +FRESULT f_getfree (const XCHAR*, DWORD*, FATFS**); /* Get number of free clusters on the drive */ +FRESULT f_truncate (FIL*); /* Truncate file */ +FRESULT f_sync (FIL*); /* Flush cached data of a writing file */ +FRESULT f_unlink (const XCHAR*); /* Delete an existing file or directory */ +FRESULT f_mkdir (const XCHAR*); /* Create a new directory */ +FRESULT f_chmod (const XCHAR*, BYTE, BYTE); /* Change attriburte of the file/dir */ +FRESULT f_utime (const XCHAR*, const FILINFO*); /* Change timestamp of the file/dir */ +FRESULT f_rename (const XCHAR*, const XCHAR*); /* Rename/Move a file or directory */ +FRESULT f_forward (FIL*, UINT(*)(const BYTE*,UINT), UINT, UINT*); /* Forward data to the stream */ +FRESULT f_mkfs (BYTE, BYTE, WORD); /* Create a file system on the drive */ +FRESULT f_chdir (const XCHAR*); /* Change current directory */ +FRESULT f_chdrive (BYTE); /* Change current drive */ + +#if _USE_STRFUNC +int f_putc (int, FIL*); /* Put a character to the file */ +int f_puts (const char*, FIL*); /* Put a string to the file */ +int f_printf (FIL*, const char*, ...); /* Put a formatted string to the file */ +char* f_gets (char*, int, FIL*); /* Get a string from the file */ +#define f_eof(fp) (((fp)->fptr == (fp)->fsize) ? 1 : 0) +#define f_error(fp) (((fp)->flag & FA__ERROR) ? 1 : 0) +#ifndef EOF +#define EOF -1 +#endif +#endif + + + +/*--------------------------------------------------------------*/ +/* User defined functions */ + +/* Real time clock */ +#if !_FS_READONLY +DWORD get_fattime (void); /* 31-25: Year(0-127 org.1980), 24-21: Month(1-12), 20-16: Day(1-31) */ + /* 15-11: Hour(0-23), 10-5: Minute(0-59), 4-0: Second(0-29 *2) */ +#endif + +/* Unicode - OEM code conversion */ +#if _USE_LFN +WCHAR ff_convert (WCHAR, UINT); +WCHAR ff_wtoupper (WCHAR); +#endif + +/* Sync functions */ +#if _FS_REENTRANT +BOOL ff_cre_syncobj(BYTE, _SYNC_t*); +BOOL ff_del_syncobj(_SYNC_t); +BOOL ff_req_grant(_SYNC_t); +void ff_rel_grant(_SYNC_t); +#endif + + + +/*--------------------------------------------------------------*/ +/* Flags and offset address */ + + +/* File access control and file status flags (FIL.flag) */ + +#define FA_READ 0x01 +#define FA_OPEN_EXISTING 0x00 +#if _FS_READONLY == 0 +#define FA_WRITE 0x02 +#define FA_CREATE_NEW 0x04 +#define FA_CREATE_ALWAYS 0x08 +#define FA_OPEN_ALWAYS 0x10 +#define FA__WRITTEN 0x20 +#define FA__DIRTY 0x40 +#endif +#define FA__ERROR 0x80 + + +/* FAT sub type (FATFS.fs_type) */ + +#define FS_FAT12 1 +#define FS_FAT16 2 +#define FS_FAT32 3 + + +/* File attribute bits for directory entry */ + +#define AM_RDO 0x01 /* Read only */ +#define AM_HID 0x02 /* Hidden */ +#define AM_SYS 0x04 /* System */ +#define AM_VOL 0x08 /* Volume label */ +#define AM_LFN 0x0F /* LFN entry */ +#define AM_DIR 0x10 /* Directory */ +#define AM_ARC 0x20 /* Archive */ +#define AM_MASK 0x3F /* Mask of defined bits */ + + +/* FatFs refers the members in the FAT structures with byte offset instead +/ of structure member because there are incompatibility of the packing option +/ between various compilers. */ + +#define BS_jmpBoot 0 +#define BS_OEMName 3 +#define BPB_BytsPerSec 11 +#define BPB_SecPerClus 13 +#define BPB_RsvdSecCnt 14 +#define BPB_NumFATs 16 +#define BPB_RootEntCnt 17 +#define BPB_TotSec16 19 +#define BPB_Media 21 +#define BPB_FATSz16 22 +#define BPB_SecPerTrk 24 +#define BPB_NumHeads 26 +#define BPB_HiddSec 28 +#define BPB_TotSec32 32 +#define BS_55AA 510 + +#define BS_DrvNum 36 +#define BS_BootSig 38 +#define BS_VolID 39 +#define BS_VolLab 43 +#define BS_FilSysType 54 + +#define BPB_FATSz32 36 +#define BPB_ExtFlags 40 +#define BPB_FSVer 42 +#define BPB_RootClus 44 +#define BPB_FSInfo 48 +#define BPB_BkBootSec 50 +#define BS_DrvNum32 64 +#define BS_BootSig32 66 +#define BS_VolID32 67 +#define BS_VolLab32 71 +#define BS_FilSysType32 82 + +#define FSI_LeadSig 0 +#define FSI_StrucSig 484 +#define FSI_Free_Count 488 +#define FSI_Nxt_Free 492 + +#define MBR_Table 446 + +#define DIR_Name 0 +#define DIR_Attr 11 +#define DIR_NTres 12 +#define DIR_CrtTime 14 +#define DIR_CrtDate 16 +#define DIR_FstClusHI 20 +#define DIR_WrtTime 22 +#define DIR_WrtDate 24 +#define DIR_FstClusLO 26 +#define DIR_FileSize 28 +#define LDIR_Ord 0 +#define LDIR_Attr 11 +#define LDIR_Type 12 +#define LDIR_Chksum 13 +#define LDIR_FstClusLO 26 + + + +/*--------------------------------*/ +/* Multi-byte word access macros */ + +#if _WORD_ACCESS == 1 /* Enable word access to the FAT structure */ +#define LD_WORD(ptr) (WORD)(*(WORD*)(BYTE*)(ptr)) +#define LD_DWORD(ptr) (DWORD)(*(DWORD*)(BYTE*)(ptr)) +#define ST_WORD(ptr,val) *(WORD*)(BYTE*)(ptr)=(WORD)(val) +#define ST_DWORD(ptr,val) *(DWORD*)(BYTE*)(ptr)=(DWORD)(val) +#else /* Use byte-by-byte access to the FAT structure */ +#define LD_WORD(ptr) (WORD)(((WORD)*(BYTE*)((ptr)+1)<<8)|(WORD)*(BYTE*)(ptr)) +#define LD_DWORD(ptr) (DWORD)(((DWORD)*(BYTE*)((ptr)+3)<<24)|((DWORD)*(BYTE*)((ptr)+2)<<16)|((WORD)*(BYTE*)((ptr)+1)<<8)|*(BYTE*)(ptr)) +#define ST_WORD(ptr,val) *(BYTE*)(ptr)=(BYTE)(val); *(BYTE*)((ptr)+1)=(BYTE)((WORD)(val)>>8) +#define ST_DWORD(ptr,val) *(BYTE*)(ptr)=(BYTE)(val); *(BYTE*)((ptr)+1)=(BYTE)((WORD)(val)>>8); *(BYTE*)((ptr)+2)=(BYTE)((DWORD)(val)>>16); *(BYTE*)((ptr)+3)=(BYTE)((DWORD)(val)>>24) +#endif + + +#endif /* _FATFS */ diff --git a/Projects/TemperatureDataLogger/Lib/FATFs/ffconf.h b/Projects/TemperatureDataLogger/Lib/FATFs/ffconf.h index 9b414e979..872e710c4 100644 --- a/Projects/TemperatureDataLogger/Lib/FATFs/ffconf.h +++ b/Projects/TemperatureDataLogger/Lib/FATFs/ffconf.h @@ -1,166 +1,166 @@ -/*---------------------------------------------------------------------------/ -/ FatFs - FAT file system module configuration file R0.07e (C)ChaN, 2010 -/----------------------------------------------------------------------------/ -/ -/ CAUTION! Do not forget to make clean the project after any changes to -/ the configuration options. -/ -/----------------------------------------------------------------------------*/ -#ifndef _FFCONFIG -#define _FFCONFIG 0x007E - - -/*---------------------------------------------------------------------------/ -/ Function and Buffer Configurations -/----------------------------------------------------------------------------*/ - -#define _FS_TINY 1 /* 0 or 1 */ -/* When _FS_TINY is set to 1, FatFs uses the sector buffer in the file system -/ object instead of the sector buffer in the individual file object for file -/ data transfer. This reduces memory consumption 512 bytes each file object. */ - - -#define _FS_READONLY 0 /* 0 or 1 */ -/* Setting _FS_READONLY to 1 defines read only configuration. This removes -/ writing functions, f_write, f_sync, f_unlink, f_mkdir, f_chmod, f_rename, -/ f_truncate and useless f_getfree. */ - - -#define _FS_MINIMIZE 2 /* 0, 1, 2 or 3 */ -/* The _FS_MINIMIZE option defines minimization level to remove some functions. -/ -/ 0: Full function. -/ 1: f_stat, f_getfree, f_unlink, f_mkdir, f_chmod, f_truncate and f_rename -/ are removed. -/ 2: f_opendir and f_readdir are removed in addition to level 1. -/ 3: f_lseek is removed in addition to level 2. */ - - -#define _USE_STRFUNC 0 /* 0, 1 or 2 */ -/* To enable string functions, set _USE_STRFUNC to 1 or 2. */ - - -#define _USE_MKFS 0 /* 0 or 1 */ -/* To enable f_mkfs function, set _USE_MKFS to 1 and set _FS_READONLY to 0 */ - - -#define _USE_FORWARD 0 /* 0 or 1 */ -/* To enable f_forward function, set _USE_FORWARD to 1 and set _FS_TINY to 1. */ - - - -/*---------------------------------------------------------------------------/ -/ Locale and Namespace Configurations -/----------------------------------------------------------------------------*/ - -#define _CODE_PAGE 932 -/* The _CODE_PAGE specifies the OEM code page to be used on the target system. -/ Incorrect setting of the code page can cause a file open failure. -/ -/ 932 - Japanese Shift-JIS (DBCS, OEM, Windows) -/ 936 - Simplified Chinese GBK (DBCS, OEM, Windows) -/ 949 - Korean (DBCS, OEM, Windows) -/ 950 - Traditional Chinese Big5 (DBCS, OEM, Windows) -/ 1250 - Central Europe (Windows) -/ 1251 - Cyrillic (Windows) -/ 1252 - Latin 1 (Windows) -/ 1253 - Greek (Windows) -/ 1254 - Turkish (Windows) -/ 1255 - Hebrew (Windows) -/ 1256 - Arabic (Windows) -/ 1257 - Baltic (Windows) -/ 1258 - Vietnam (OEM, Windows) -/ 437 - U.S. (OEM) -/ 720 - Arabic (OEM) -/ 737 - Greek (OEM) -/ 775 - Baltic (OEM) -/ 850 - Multilingual Latin 1 (OEM) -/ 858 - Multilingual Latin 1 + Euro (OEM) -/ 852 - Latin 2 (OEM) -/ 855 - Cyrillic (OEM) -/ 866 - Russian (OEM) -/ 857 - Turkish (OEM) -/ 862 - Hebrew (OEM) -/ 874 - Thai (OEM, Windows) -/ 1 - ASCII only (Valid for non LFN cfg.) -*/ - - -#define _USE_LFN 0 /* 0, 1 or 2 */ -#define _MAX_LFN 255 /* Maximum LFN length to handle (12 to 255) */ -/* The _USE_LFN option switches the LFN support. -/ -/ 0: Disable LFN. _MAX_LFN and _LFN_UNICODE have no effect. -/ 1: Enable LFN with static working buffer on the bss. NOT REENTRANT. -/ 2: Enable LFN with dynamic working buffer on the STACK. -/ -/ The LFN working buffer occupies (_MAX_LFN + 1) * 2 bytes. When enable LFN, -/ two Unicode handling functions ff_convert() and ff_wtoupper() must be added -/ to the project. */ - - -#define _LFN_UNICODE 0 /* 0 or 1 */ -/* To switch the character code set on FatFs API to Unicode, -/ enable LFN feature and set _LFN_UNICODE to 1. -*/ - - -#define _FS_RPATH 0 /* 0 or 1 */ -/* When _FS_RPATH is set to 1, relative path feature is enabled and f_chdir, -/ f_chdrive function are available. -/ Note that output of the f_readdir fnction is affected by this option. */ - - - -/*---------------------------------------------------------------------------/ -/ Physical Drive Configurations -/----------------------------------------------------------------------------*/ - -#define _DRIVES 1 -/* Number of volumes (logical drives) to be used. */ - - -#define _MAX_SS 512 /* 512, 1024, 2048 or 4096 */ -/* Maximum sector size to be handled. -/ Always set 512 for memory card and hard disk but a larger value may be -/ required for floppy disk (512/1024) and optical disk (512/2048). -/ When _MAX_SS is larger than 512, GET_SECTOR_SIZE command must be implememted -/ to the disk_ioctl function. */ - - -#define _MULTI_PARTITION 0 /* 0 or 1 */ -/* When _MULTI_PARTITION is set to 0, each volume is bound to the same physical -/ drive number and can mount only first primaly partition. When it is set to 1, -/ each volume is tied to the partitions listed in Drives[]. */ - - - -/*---------------------------------------------------------------------------/ -/ System Configurations -/----------------------------------------------------------------------------*/ - -#define _WORD_ACCESS 1 /* 0 or 1 */ -/* The _WORD_ACCESS option defines which access method is used to the word -/ data on the FAT volume. -/ -/ 0: Byte-by-byte access. Always compatible with all platforms. -/ 1: Word access. Do not choose this unless following condition is met. -/ -/ When the byte order on the memory is big-endian or address miss-aligned -/ word access results incorrect behavior, the _WORD_ACCESS must be set to 0. -/ If it is not the case, the value can also be set to 1 to improve the -/ performance and code size. */ - - -#define _FS_REENTRANT 0 /* 0 or 1 */ -#define _FS_TIMEOUT 1000 /* Timeout period in unit of time ticks */ -#define _SYNC_t HANDLE /* O/S dependent type of sync object. e.g. HANDLE, OS_EVENT*, ID and etc.. */ -/* The _FS_REENTRANT option switches the reentrancy of the FatFs module. -/ -/ 0: Disable reentrancy. _SYNC_t and _FS_TIMEOUT have no effect. -/ 1: Enable reentrancy. Also user provided synchronization handlers, -/ ff_req_grant, ff_rel_grant, ff_del_syncobj and ff_cre_syncobj -/ function must be added to the project. */ - - -#endif /* _FFCONFIG */ +/*---------------------------------------------------------------------------/ +/ FatFs - FAT file system module configuration file R0.07e (C)ChaN, 2010 +/----------------------------------------------------------------------------/ +/ +/ CAUTION! Do not forget to make clean the project after any changes to +/ the configuration options. +/ +/----------------------------------------------------------------------------*/ +#ifndef _FFCONFIG +#define _FFCONFIG 0x007E + + +/*---------------------------------------------------------------------------/ +/ Function and Buffer Configurations +/----------------------------------------------------------------------------*/ + +#define _FS_TINY 1 /* 0 or 1 */ +/* When _FS_TINY is set to 1, FatFs uses the sector buffer in the file system +/ object instead of the sector buffer in the individual file object for file +/ data transfer. This reduces memory consumption 512 bytes each file object. */ + + +#define _FS_READONLY 0 /* 0 or 1 */ +/* Setting _FS_READONLY to 1 defines read only configuration. This removes +/ writing functions, f_write, f_sync, f_unlink, f_mkdir, f_chmod, f_rename, +/ f_truncate and useless f_getfree. */ + + +#define _FS_MINIMIZE 2 /* 0, 1, 2 or 3 */ +/* The _FS_MINIMIZE option defines minimization level to remove some functions. +/ +/ 0: Full function. +/ 1: f_stat, f_getfree, f_unlink, f_mkdir, f_chmod, f_truncate and f_rename +/ are removed. +/ 2: f_opendir and f_readdir are removed in addition to level 1. +/ 3: f_lseek is removed in addition to level 2. */ + + +#define _USE_STRFUNC 0 /* 0, 1 or 2 */ +/* To enable string functions, set _USE_STRFUNC to 1 or 2. */ + + +#define _USE_MKFS 0 /* 0 or 1 */ +/* To enable f_mkfs function, set _USE_MKFS to 1 and set _FS_READONLY to 0 */ + + +#define _USE_FORWARD 0 /* 0 or 1 */ +/* To enable f_forward function, set _USE_FORWARD to 1 and set _FS_TINY to 1. */ + + + +/*---------------------------------------------------------------------------/ +/ Locale and Namespace Configurations +/----------------------------------------------------------------------------*/ + +#define _CODE_PAGE 932 +/* The _CODE_PAGE specifies the OEM code page to be used on the target system. +/ Incorrect setting of the code page can cause a file open failure. +/ +/ 932 - Japanese Shift-JIS (DBCS, OEM, Windows) +/ 936 - Simplified Chinese GBK (DBCS, OEM, Windows) +/ 949 - Korean (DBCS, OEM, Windows) +/ 950 - Traditional Chinese Big5 (DBCS, OEM, Windows) +/ 1250 - Central Europe (Windows) +/ 1251 - Cyrillic (Windows) +/ 1252 - Latin 1 (Windows) +/ 1253 - Greek (Windows) +/ 1254 - Turkish (Windows) +/ 1255 - Hebrew (Windows) +/ 1256 - Arabic (Windows) +/ 1257 - Baltic (Windows) +/ 1258 - Vietnam (OEM, Windows) +/ 437 - U.S. (OEM) +/ 720 - Arabic (OEM) +/ 737 - Greek (OEM) +/ 775 - Baltic (OEM) +/ 850 - Multilingual Latin 1 (OEM) +/ 858 - Multilingual Latin 1 + Euro (OEM) +/ 852 - Latin 2 (OEM) +/ 855 - Cyrillic (OEM) +/ 866 - Russian (OEM) +/ 857 - Turkish (OEM) +/ 862 - Hebrew (OEM) +/ 874 - Thai (OEM, Windows) +/ 1 - ASCII only (Valid for non LFN cfg.) +*/ + + +#define _USE_LFN 0 /* 0, 1 or 2 */ +#define _MAX_LFN 255 /* Maximum LFN length to handle (12 to 255) */ +/* The _USE_LFN option switches the LFN support. +/ +/ 0: Disable LFN. _MAX_LFN and _LFN_UNICODE have no effect. +/ 1: Enable LFN with static working buffer on the bss. NOT REENTRANT. +/ 2: Enable LFN with dynamic working buffer on the STACK. +/ +/ The LFN working buffer occupies (_MAX_LFN + 1) * 2 bytes. When enable LFN, +/ two Unicode handling functions ff_convert() and ff_wtoupper() must be added +/ to the project. */ + + +#define _LFN_UNICODE 0 /* 0 or 1 */ +/* To switch the character code set on FatFs API to Unicode, +/ enable LFN feature and set _LFN_UNICODE to 1. +*/ + + +#define _FS_RPATH 0 /* 0 or 1 */ +/* When _FS_RPATH is set to 1, relative path feature is enabled and f_chdir, +/ f_chdrive function are available. +/ Note that output of the f_readdir fnction is affected by this option. */ + + + +/*---------------------------------------------------------------------------/ +/ Physical Drive Configurations +/----------------------------------------------------------------------------*/ + +#define _DRIVES 1 +/* Number of volumes (logical drives) to be used. */ + + +#define _MAX_SS 512 /* 512, 1024, 2048 or 4096 */ +/* Maximum sector size to be handled. +/ Always set 512 for memory card and hard disk but a larger value may be +/ required for floppy disk (512/1024) and optical disk (512/2048). +/ When _MAX_SS is larger than 512, GET_SECTOR_SIZE command must be implememted +/ to the disk_ioctl function. */ + + +#define _MULTI_PARTITION 0 /* 0 or 1 */ +/* When _MULTI_PARTITION is set to 0, each volume is bound to the same physical +/ drive number and can mount only first primaly partition. When it is set to 1, +/ each volume is tied to the partitions listed in Drives[]. */ + + + +/*---------------------------------------------------------------------------/ +/ System Configurations +/----------------------------------------------------------------------------*/ + +#define _WORD_ACCESS 1 /* 0 or 1 */ +/* The _WORD_ACCESS option defines which access method is used to the word +/ data on the FAT volume. +/ +/ 0: Byte-by-byte access. Always compatible with all platforms. +/ 1: Word access. Do not choose this unless following condition is met. +/ +/ When the byte order on the memory is big-endian or address miss-aligned +/ word access results incorrect behavior, the _WORD_ACCESS must be set to 0. +/ If it is not the case, the value can also be set to 1 to improve the +/ performance and code size. */ + + +#define _FS_REENTRANT 0 /* 0 or 1 */ +#define _FS_TIMEOUT 1000 /* Timeout period in unit of time ticks */ +#define _SYNC_t HANDLE /* O/S dependent type of sync object. e.g. HANDLE, OS_EVENT*, ID and etc.. */ +/* The _FS_REENTRANT option switches the reentrancy of the FatFs module. +/ +/ 0: Disable reentrancy. _SYNC_t and _FS_TIMEOUT have no effect. +/ 1: Enable reentrancy. Also user provided synchronization handlers, +/ ff_req_grant, ff_rel_grant, ff_del_syncobj and ff_cre_syncobj +/ function must be added to the project. */ + + +#endif /* _FFCONFIG */ diff --git a/Projects/TemperatureDataLogger/Lib/FATFs/integer.h b/Projects/TemperatureDataLogger/Lib/FATFs/integer.h index 1d6bac368..851a78da2 100644 --- a/Projects/TemperatureDataLogger/Lib/FATFs/integer.h +++ b/Projects/TemperatureDataLogger/Lib/FATFs/integer.h @@ -1,37 +1,37 @@ -/*-------------------------------------------*/ -/* Integer type definitions for FatFs module */ -/*-------------------------------------------*/ - -#ifndef _INTEGER - -#if 0 -#include -#else - -/* These types must be 16-bit, 32-bit or larger integer */ -typedef int INT; -typedef unsigned int UINT; - -/* These types must be 8-bit integer */ -typedef signed char CHAR; -typedef unsigned char UCHAR; -typedef unsigned char BYTE; - -/* These types must be 16-bit integer */ -typedef short SHORT; -typedef unsigned short USHORT; -typedef unsigned short WORD; -typedef unsigned short WCHAR; - -/* These types must be 32-bit integer */ -typedef long LONG; -typedef unsigned long ULONG; -typedef unsigned long DWORD; - -/* Boolean type */ -typedef enum { FALSE = 0, TRUE } BOOL; - -#endif - -#define _INTEGER -#endif +/*-------------------------------------------*/ +/* Integer type definitions for FatFs module */ +/*-------------------------------------------*/ + +#ifndef _INTEGER + +#if 0 +#include +#else + +/* These types must be 16-bit, 32-bit or larger integer */ +typedef int INT; +typedef unsigned int UINT; + +/* These types must be 8-bit integer */ +typedef signed char CHAR; +typedef unsigned char UCHAR; +typedef unsigned char BYTE; + +/* These types must be 16-bit integer */ +typedef short SHORT; +typedef unsigned short USHORT; +typedef unsigned short WORD; +typedef unsigned short WCHAR; + +/* These types must be 32-bit integer */ +typedef long LONG; +typedef unsigned long ULONG; +typedef unsigned long DWORD; + +/* Boolean type */ +typedef enum { FALSE = 0, TRUE } BOOL; + +#endif + +#define _INTEGER +#endif diff --git a/Projects/TemperatureDataLogger/Lib/SCSI.c b/Projects/TemperatureDataLogger/Lib/SCSI.c index 8a376a41b..55312e87b 100644 --- a/Projects/TemperatureDataLogger/Lib/SCSI.c +++ b/Projects/TemperatureDataLogger/Lib/SCSI.c @@ -1,281 +1,281 @@ -/* - LUFA Library - Copyright (C) Dean Camera, 2010. - - dean [at] fourwalledcubicle [dot] com - www.fourwalledcubicle.com -*/ - -/* - Copyright 2010 Dean Camera (dean [at] fourwalledcubicle [dot] com) - - Permission to use, copy, modify, distribute, and sell this - software and its documentation for any purpose is hereby granted - without fee, provided that the above copyright notice appear in - all copies and that both that the copyright notice and this - permission notice and warranty disclaimer appear in supporting - documentation, and that the name of the author not be used in - advertising or publicity pertaining to distribution of the - software without specific, written prior permission. - - The author disclaim all warranties with regard to this - software, including all implied warranties of merchantability - and fitness. In no event shall the author be liable for any - special, indirect or consequential damages or any damages - whatsoever resulting from loss of use, data or profits, whether - in an action of contract, negligence or other tortious action, - arising out of or in connection with the use or performance of - this software. -*/ - -/** \file - * - * SCSI command processing routines, for SCSI commands issued by the host. Mass Storage - * devices use a thin "Bulk-Only Transport" protocol for issuing commands and status information, - * which wrap around standard SCSI device commands for controlling the actual storage medium. - */ - -#define INCLUDE_FROM_SCSI_C -#include "SCSI.h" - -/** Structure to hold the SCSI response data to a SCSI INQUIRY command. This gives information about the device's - * features and capabilities. - */ -SCSI_Inquiry_Response_t InquiryData = - { - .DeviceType = DEVICE_TYPE_BLOCK, - .PeripheralQualifier = 0, - - .Removable = true, - - .Version = 0, - - .ResponseDataFormat = 2, - .NormACA = false, - .TrmTsk = false, - .AERC = false, - - .AdditionalLength = 0x1F, - - .SoftReset = false, - .CmdQue = false, - .Linked = false, - .Sync = false, - .WideBus16Bit = false, - .WideBus32Bit = false, - .RelAddr = false, - - .VendorID = "LUFA", - .ProductID = "Dataflash Disk", - .RevisionID = {'0','.','0','0'}, - }; - -/** Structure to hold the sense data for the last issued SCSI command, which is returned to the host after a SCSI REQUEST SENSE - * command is issued. This gives information on exactly why the last command failed to complete. - */ -SCSI_Request_Sense_Response_t SenseData = - { - .ResponseCode = 0x70, - .AdditionalLength = 0x0A, - }; - - -/** Main routine to process the SCSI command located in the Command Block Wrapper read from the host. This dispatches - * to the appropriate SCSI command handling routine if the issued command is supported by the device, else it returns - * a command failure due to a ILLEGAL REQUEST. - * - * \param[in] MSInterfaceInfo Pointer to the Mass Storage class interface structure that the command is associated with - */ -bool SCSI_DecodeSCSICommand(USB_ClassInfo_MS_Device_t* const MSInterfaceInfo) -{ - /* Set initial sense data, before the requested command is processed */ - SCSI_SET_SENSE(SCSI_SENSE_KEY_GOOD, - SCSI_ASENSE_NO_ADDITIONAL_INFORMATION, - SCSI_ASENSEQ_NO_QUALIFIER); - - /* Run the appropriate SCSI command hander function based on the passed command */ - switch (MSInterfaceInfo->State.CommandBlock.SCSICommandData[0]) - { - case SCSI_CMD_INQUIRY: - SCSI_Command_Inquiry(MSInterfaceInfo); - break; - case SCSI_CMD_REQUEST_SENSE: - SCSI_Command_Request_Sense(MSInterfaceInfo); - break; - case SCSI_CMD_READ_CAPACITY_10: - SCSI_Command_Read_Capacity_10(MSInterfaceInfo); - break; - case SCSI_CMD_SEND_DIAGNOSTIC: - SCSI_Command_Send_Diagnostic(MSInterfaceInfo); - break; - case SCSI_CMD_WRITE_10: - SCSI_Command_ReadWrite_10(MSInterfaceInfo, DATA_WRITE); - break; - case SCSI_CMD_READ_10: - SCSI_Command_ReadWrite_10(MSInterfaceInfo, DATA_READ); - break; - case SCSI_CMD_TEST_UNIT_READY: - case SCSI_CMD_PREVENT_ALLOW_MEDIUM_REMOVAL: - case SCSI_CMD_VERIFY_10: - /* These commands should just succeed, no handling required */ - MSInterfaceInfo->State.CommandBlock.DataTransferLength = 0; - break; - default: - /* Update the SENSE key to reflect the invalid command */ - SCSI_SET_SENSE(SCSI_SENSE_KEY_ILLEGAL_REQUEST, - SCSI_ASENSE_INVALID_COMMAND, - SCSI_ASENSEQ_NO_QUALIFIER); - break; - } - - return (SenseData.SenseKey == SCSI_SENSE_KEY_GOOD); -} - -/** Command processing for an issued SCSI INQUIRY command. This command returns information about the device's features - * and capabilities to the host. - * - * \param[in] MSInterfaceInfo Pointer to the Mass Storage class interface structure that the command is associated with - */ -static void SCSI_Command_Inquiry(USB_ClassInfo_MS_Device_t* const MSInterfaceInfo) -{ - uint16_t AllocationLength = (((uint16_t)MSInterfaceInfo->State.CommandBlock.SCSICommandData[3] << 8) | - MSInterfaceInfo->State.CommandBlock.SCSICommandData[4]); - uint16_t BytesTransferred = (AllocationLength < sizeof(InquiryData))? AllocationLength : - sizeof(InquiryData); - - /* Only the standard INQUIRY data is supported, check if any optional INQUIRY bits set */ - if ((MSInterfaceInfo->State.CommandBlock.SCSICommandData[1] & ((1 << 0) | (1 << 1))) || - MSInterfaceInfo->State.CommandBlock.SCSICommandData[2]) - { - /* Optional but unsupported bits set - update the SENSE key and fail the request */ - SCSI_SET_SENSE(SCSI_SENSE_KEY_ILLEGAL_REQUEST, - SCSI_ASENSE_INVALID_FIELD_IN_CDB, - SCSI_ASENSEQ_NO_QUALIFIER); - - return; - } - - Endpoint_Write_Stream_LE(&InquiryData, BytesTransferred, NO_STREAM_CALLBACK); - - uint8_t PadBytes[AllocationLength - BytesTransferred]; - - /* Pad out remaining bytes with 0x00 */ - Endpoint_Write_Stream_LE(&PadBytes, (AllocationLength - BytesTransferred), NO_STREAM_CALLBACK); - - /* Finalize the stream transfer to send the last packet */ - Endpoint_ClearIN(); - - /* Succeed the command and update the bytes transferred counter */ - MSInterfaceInfo->State.CommandBlock.DataTransferLength -= BytesTransferred; -} - -/** Command processing for an issued SCSI REQUEST SENSE command. This command returns information about the last issued command, - * including the error code and additional error information so that the host can determine why a command failed to complete. - * - * \param[in] MSInterfaceInfo Pointer to the Mass Storage class interface structure that the command is associated with - */ -static void SCSI_Command_Request_Sense(USB_ClassInfo_MS_Device_t* const MSInterfaceInfo) -{ - uint8_t AllocationLength = MSInterfaceInfo->State.CommandBlock.SCSICommandData[4]; - uint8_t BytesTransferred = (AllocationLength < sizeof(SenseData))? AllocationLength : sizeof(SenseData); - - uint8_t PadBytes[AllocationLength - BytesTransferred]; - - Endpoint_Write_Stream_LE(&SenseData, BytesTransferred, NO_STREAM_CALLBACK); - Endpoint_Write_Stream_LE(&PadBytes, (AllocationLength - BytesTransferred), NO_STREAM_CALLBACK); - Endpoint_ClearIN(); - - /* Succeed the command and update the bytes transferred counter */ - MSInterfaceInfo->State.CommandBlock.DataTransferLength -= BytesTransferred; -} - -/** Command processing for an issued SCSI READ CAPACITY (10) command. This command returns information about the device's capacity - * on the selected Logical Unit (drive), as a number of OS-sized blocks. - * - * \param[in] MSInterfaceInfo Pointer to the Mass Storage class interface structure that the command is associated with - */ -static void SCSI_Command_Read_Capacity_10(USB_ClassInfo_MS_Device_t* const MSInterfaceInfo) -{ - uint32_t LastBlockAddressInLUN = (VIRTUAL_MEMORY_BLOCKS - 1); - uint32_t MediaBlockSize = VIRTUAL_MEMORY_BLOCK_SIZE; - - Endpoint_Write_Stream_BE(&LastBlockAddressInLUN, sizeof(LastBlockAddressInLUN), NO_STREAM_CALLBACK); - Endpoint_Write_Stream_BE(&MediaBlockSize, sizeof(MediaBlockSize), NO_STREAM_CALLBACK); - Endpoint_ClearIN(); - - /* Succeed the command and update the bytes transferred counter */ - MSInterfaceInfo->State.CommandBlock.DataTransferLength -= 8; -} - -/** Command processing for an issued SCSI SEND DIAGNOSTIC command. This command performs a quick check of the Dataflash ICs on the - * board, and indicates if they are present and functioning correctly. Only the Self-Test portion of the diagnostic command is - * supported. - * - * \param[in] MSInterfaceInfo Pointer to the Mass Storage class interface structure that the command is associated with - */ -static void SCSI_Command_Send_Diagnostic(USB_ClassInfo_MS_Device_t* const MSInterfaceInfo) -{ - /* Check to see if the SELF TEST bit is not set */ - if (!(MSInterfaceInfo->State.CommandBlock.SCSICommandData[1] & (1 << 2))) - { - /* Only self-test supported - update SENSE key and fail the command */ - SCSI_SET_SENSE(SCSI_SENSE_KEY_ILLEGAL_REQUEST, - SCSI_ASENSE_INVALID_FIELD_IN_CDB, - SCSI_ASENSEQ_NO_QUALIFIER); - - return; - } - - /* Check to see if all attached Dataflash ICs are functional */ - if (!(DataflashManager_CheckDataflashOperation())) - { - /* Update SENSE key with a hardware error condition and return command fail */ - SCSI_SET_SENSE(SCSI_SENSE_KEY_HARDWARE_ERROR, - SCSI_ASENSE_NO_ADDITIONAL_INFORMATION, - SCSI_ASENSEQ_NO_QUALIFIER); - - return; - } - - /* Succeed the command and update the bytes transferred counter */ - MSInterfaceInfo->State.CommandBlock.DataTransferLength = 0; -} - -/** Command processing for an issued SCSI READ (10) or WRITE (10) command. This command reads in the block start address - * and total number of blocks to process, then calls the appropriate low-level dataflash routine to handle the actual - * reading and writing of the data. - * - * \param[in] MSInterfaceInfo Pointer to the Mass Storage class interface structure that the command is associated with - * \param[in] IsDataRead Indicates if the command is a READ (10) command or WRITE (10) command (DATA_READ or DATA_WRITE) - */ -static void SCSI_Command_ReadWrite_10(USB_ClassInfo_MS_Device_t* const MSInterfaceInfo, const bool IsDataRead) -{ - uint32_t BlockAddress; - uint16_t TotalBlocks; - - /* Load in the 32-bit block address (SCSI uses big-endian, so have to reverse the byte order) */ - BlockAddress = SwapEndian_32(*(uint32_t*)&MSInterfaceInfo->State.CommandBlock.SCSICommandData[2]); - - /* Load in the 16-bit total blocks (SCSI uses big-endian, so have to reverse the byte order) */ - TotalBlocks = SwapEndian_16(*(uint32_t*)&MSInterfaceInfo->State.CommandBlock.SCSICommandData[7]); - - /* Check if the block address is outside the maximum allowable value for the LUN */ - if (BlockAddress >= VIRTUAL_MEMORY_BLOCKS) - { - /* Block address is invalid, update SENSE key and return command fail */ - SCSI_SET_SENSE(SCSI_SENSE_KEY_ILLEGAL_REQUEST, - SCSI_ASENSE_LOGICAL_BLOCK_ADDRESS_OUT_OF_RANGE, - SCSI_ASENSEQ_NO_QUALIFIER); - - return; - } - - /* Determine if the packet is a READ (10) or WRITE (10) command, call appropriate function */ - if (IsDataRead == DATA_READ) - DataflashManager_ReadBlocks(MSInterfaceInfo, BlockAddress, TotalBlocks); - else - DataflashManager_WriteBlocks(MSInterfaceInfo, BlockAddress, TotalBlocks); - - /* Update the bytes transferred counter and succeed the command */ - MSInterfaceInfo->State.CommandBlock.DataTransferLength -= ((uint32_t)TotalBlocks * VIRTUAL_MEMORY_BLOCK_SIZE); -} +/* + LUFA Library + Copyright (C) Dean Camera, 2010. + + dean [at] fourwalledcubicle [dot] com + www.fourwalledcubicle.com +*/ + +/* + Copyright 2010 Dean Camera (dean [at] fourwalledcubicle [dot] com) + + Permission to use, copy, modify, distribute, and sell this + software and its documentation for any purpose is hereby granted + without fee, provided that the above copyright notice appear in + all copies and that both that the copyright notice and this + permission notice and warranty disclaimer appear in supporting + documentation, and that the name of the author not be used in + advertising or publicity pertaining to distribution of the + software without specific, written prior permission. + + The author disclaim all warranties with regard to this + software, including all implied warranties of merchantability + and fitness. In no event shall the author be liable for any + special, indirect or consequential damages or any damages + whatsoever resulting from loss of use, data or profits, whether + in an action of contract, negligence or other tortious action, + arising out of or in connection with the use or performance of + this software. +*/ + +/** \file + * + * SCSI command processing routines, for SCSI commands issued by the host. Mass Storage + * devices use a thin "Bulk-Only Transport" protocol for issuing commands and status information, + * which wrap around standard SCSI device commands for controlling the actual storage medium. + */ + +#define INCLUDE_FROM_SCSI_C +#include "SCSI.h" + +/** Structure to hold the SCSI response data to a SCSI INQUIRY command. This gives information about the device's + * features and capabilities. + */ +SCSI_Inquiry_Response_t InquiryData = + { + .DeviceType = DEVICE_TYPE_BLOCK, + .PeripheralQualifier = 0, + + .Removable = true, + + .Version = 0, + + .ResponseDataFormat = 2, + .NormACA = false, + .TrmTsk = false, + .AERC = false, + + .AdditionalLength = 0x1F, + + .SoftReset = false, + .CmdQue = false, + .Linked = false, + .Sync = false, + .WideBus16Bit = false, + .WideBus32Bit = false, + .RelAddr = false, + + .VendorID = "LUFA", + .ProductID = "Dataflash Disk", + .RevisionID = {'0','.','0','0'}, + }; + +/** Structure to hold the sense data for the last issued SCSI command, which is returned to the host after a SCSI REQUEST SENSE + * command is issued. This gives information on exactly why the last command failed to complete. + */ +SCSI_Request_Sense_Response_t SenseData = + { + .ResponseCode = 0x70, + .AdditionalLength = 0x0A, + }; + + +/** Main routine to process the SCSI command located in the Command Block Wrapper read from the host. This dispatches + * to the appropriate SCSI command handling routine if the issued command is supported by the device, else it returns + * a command failure due to a ILLEGAL REQUEST. + * + * \param[in] MSInterfaceInfo Pointer to the Mass Storage class interface structure that the command is associated with + */ +bool SCSI_DecodeSCSICommand(USB_ClassInfo_MS_Device_t* const MSInterfaceInfo) +{ + /* Set initial sense data, before the requested command is processed */ + SCSI_SET_SENSE(SCSI_SENSE_KEY_GOOD, + SCSI_ASENSE_NO_ADDITIONAL_INFORMATION, + SCSI_ASENSEQ_NO_QUALIFIER); + + /* Run the appropriate SCSI command hander function based on the passed command */ + switch (MSInterfaceInfo->State.CommandBlock.SCSICommandData[0]) + { + case SCSI_CMD_INQUIRY: + SCSI_Command_Inquiry(MSInterfaceInfo); + break; + case SCSI_CMD_REQUEST_SENSE: + SCSI_Command_Request_Sense(MSInterfaceInfo); + break; + case SCSI_CMD_READ_CAPACITY_10: + SCSI_Command_Read_Capacity_10(MSInterfaceInfo); + break; + case SCSI_CMD_SEND_DIAGNOSTIC: + SCSI_Command_Send_Diagnostic(MSInterfaceInfo); + break; + case SCSI_CMD_WRITE_10: + SCSI_Command_ReadWrite_10(MSInterfaceInfo, DATA_WRITE); + break; + case SCSI_CMD_READ_10: + SCSI_Command_ReadWrite_10(MSInterfaceInfo, DATA_READ); + break; + case SCSI_CMD_TEST_UNIT_READY: + case SCSI_CMD_PREVENT_ALLOW_MEDIUM_REMOVAL: + case SCSI_CMD_VERIFY_10: + /* These commands should just succeed, no handling required */ + MSInterfaceInfo->State.CommandBlock.DataTransferLength = 0; + break; + default: + /* Update the SENSE key to reflect the invalid command */ + SCSI_SET_SENSE(SCSI_SENSE_KEY_ILLEGAL_REQUEST, + SCSI_ASENSE_INVALID_COMMAND, + SCSI_ASENSEQ_NO_QUALIFIER); + break; + } + + return (SenseData.SenseKey == SCSI_SENSE_KEY_GOOD); +} + +/** Command processing for an issued SCSI INQUIRY command. This command returns information about the device's features + * and capabilities to the host. + * + * \param[in] MSInterfaceInfo Pointer to the Mass Storage class interface structure that the command is associated with + */ +static void SCSI_Command_Inquiry(USB_ClassInfo_MS_Device_t* const MSInterfaceInfo) +{ + uint16_t AllocationLength = (((uint16_t)MSInterfaceInfo->State.CommandBlock.SCSICommandData[3] << 8) | + MSInterfaceInfo->State.CommandBlock.SCSICommandData[4]); + uint16_t BytesTransferred = (AllocationLength < sizeof(InquiryData))? AllocationLength : + sizeof(InquiryData); + + /* Only the standard INQUIRY data is supported, check if any optional INQUIRY bits set */ + if ((MSInterfaceInfo->State.CommandBlock.SCSICommandData[1] & ((1 << 0) | (1 << 1))) || + MSInterfaceInfo->State.CommandBlock.SCSICommandData[2]) + { + /* Optional but unsupported bits set - update the SENSE key and fail the request */ + SCSI_SET_SENSE(SCSI_SENSE_KEY_ILLEGAL_REQUEST, + SCSI_ASENSE_INVALID_FIELD_IN_CDB, + SCSI_ASENSEQ_NO_QUALIFIER); + + return; + } + + Endpoint_Write_Stream_LE(&InquiryData, BytesTransferred, NO_STREAM_CALLBACK); + + uint8_t PadBytes[AllocationLength - BytesTransferred]; + + /* Pad out remaining bytes with 0x00 */ + Endpoint_Write_Stream_LE(&PadBytes, (AllocationLength - BytesTransferred), NO_STREAM_CALLBACK); + + /* Finalize the stream transfer to send the last packet */ + Endpoint_ClearIN(); + + /* Succeed the command and update the bytes transferred counter */ + MSInterfaceInfo->State.CommandBlock.DataTransferLength -= BytesTransferred; +} + +/** Command processing for an issued SCSI REQUEST SENSE command. This command returns information about the last issued command, + * including the error code and additional error information so that the host can determine why a command failed to complete. + * + * \param[in] MSInterfaceInfo Pointer to the Mass Storage class interface structure that the command is associated with + */ +static void SCSI_Command_Request_Sense(USB_ClassInfo_MS_Device_t* const MSInterfaceInfo) +{ + uint8_t AllocationLength = MSInterfaceInfo->State.CommandBlock.SCSICommandData[4]; + uint8_t BytesTransferred = (AllocationLength < sizeof(SenseData))? AllocationLength : sizeof(SenseData); + + uint8_t PadBytes[AllocationLength - BytesTransferred]; + + Endpoint_Write_Stream_LE(&SenseData, BytesTransferred, NO_STREAM_CALLBACK); + Endpoint_Write_Stream_LE(&PadBytes, (AllocationLength - BytesTransferred), NO_STREAM_CALLBACK); + Endpoint_ClearIN(); + + /* Succeed the command and update the bytes transferred counter */ + MSInterfaceInfo->State.CommandBlock.DataTransferLength -= BytesTransferred; +} + +/** Command processing for an issued SCSI READ CAPACITY (10) command. This command returns information about the device's capacity + * on the selected Logical Unit (drive), as a number of OS-sized blocks. + * + * \param[in] MSInterfaceInfo Pointer to the Mass Storage class interface structure that the command is associated with + */ +static void SCSI_Command_Read_Capacity_10(USB_ClassInfo_MS_Device_t* const MSInterfaceInfo) +{ + uint32_t LastBlockAddressInLUN = (VIRTUAL_MEMORY_BLOCKS - 1); + uint32_t MediaBlockSize = VIRTUAL_MEMORY_BLOCK_SIZE; + + Endpoint_Write_Stream_BE(&LastBlockAddressInLUN, sizeof(LastBlockAddressInLUN), NO_STREAM_CALLBACK); + Endpoint_Write_Stream_BE(&MediaBlockSize, sizeof(MediaBlockSize), NO_STREAM_CALLBACK); + Endpoint_ClearIN(); + + /* Succeed the command and update the bytes transferred counter */ + MSInterfaceInfo->State.CommandBlock.DataTransferLength -= 8; +} + +/** Command processing for an issued SCSI SEND DIAGNOSTIC command. This command performs a quick check of the Dataflash ICs on the + * board, and indicates if they are present and functioning correctly. Only the Self-Test portion of the diagnostic command is + * supported. + * + * \param[in] MSInterfaceInfo Pointer to the Mass Storage class interface structure that the command is associated with + */ +static void SCSI_Command_Send_Diagnostic(USB_ClassInfo_MS_Device_t* const MSInterfaceInfo) +{ + /* Check to see if the SELF TEST bit is not set */ + if (!(MSInterfaceInfo->State.CommandBlock.SCSICommandData[1] & (1 << 2))) + { + /* Only self-test supported - update SENSE key and fail the command */ + SCSI_SET_SENSE(SCSI_SENSE_KEY_ILLEGAL_REQUEST, + SCSI_ASENSE_INVALID_FIELD_IN_CDB, + SCSI_ASENSEQ_NO_QUALIFIER); + + return; + } + + /* Check to see if all attached Dataflash ICs are functional */ + if (!(DataflashManager_CheckDataflashOperation())) + { + /* Update SENSE key with a hardware error condition and return command fail */ + SCSI_SET_SENSE(SCSI_SENSE_KEY_HARDWARE_ERROR, + SCSI_ASENSE_NO_ADDITIONAL_INFORMATION, + SCSI_ASENSEQ_NO_QUALIFIER); + + return; + } + + /* Succeed the command and update the bytes transferred counter */ + MSInterfaceInfo->State.CommandBlock.DataTransferLength = 0; +} + +/** Command processing for an issued SCSI READ (10) or WRITE (10) command. This command reads in the block start address + * and total number of blocks to process, then calls the appropriate low-level dataflash routine to handle the actual + * reading and writing of the data. + * + * \param[in] MSInterfaceInfo Pointer to the Mass Storage class interface structure that the command is associated with + * \param[in] IsDataRead Indicates if the command is a READ (10) command or WRITE (10) command (DATA_READ or DATA_WRITE) + */ +static void SCSI_Command_ReadWrite_10(USB_ClassInfo_MS_Device_t* const MSInterfaceInfo, const bool IsDataRead) +{ + uint32_t BlockAddress; + uint16_t TotalBlocks; + + /* Load in the 32-bit block address (SCSI uses big-endian, so have to reverse the byte order) */ + BlockAddress = SwapEndian_32(*(uint32_t*)&MSInterfaceInfo->State.CommandBlock.SCSICommandData[2]); + + /* Load in the 16-bit total blocks (SCSI uses big-endian, so have to reverse the byte order) */ + TotalBlocks = SwapEndian_16(*(uint32_t*)&MSInterfaceInfo->State.CommandBlock.SCSICommandData[7]); + + /* Check if the block address is outside the maximum allowable value for the LUN */ + if (BlockAddress >= VIRTUAL_MEMORY_BLOCKS) + { + /* Block address is invalid, update SENSE key and return command fail */ + SCSI_SET_SENSE(SCSI_SENSE_KEY_ILLEGAL_REQUEST, + SCSI_ASENSE_LOGICAL_BLOCK_ADDRESS_OUT_OF_RANGE, + SCSI_ASENSEQ_NO_QUALIFIER); + + return; + } + + /* Determine if the packet is a READ (10) or WRITE (10) command, call appropriate function */ + if (IsDataRead == DATA_READ) + DataflashManager_ReadBlocks(MSInterfaceInfo, BlockAddress, TotalBlocks); + else + DataflashManager_WriteBlocks(MSInterfaceInfo, BlockAddress, TotalBlocks); + + /* Update the bytes transferred counter and succeed the command */ + MSInterfaceInfo->State.CommandBlock.DataTransferLength -= ((uint32_t)TotalBlocks * VIRTUAL_MEMORY_BLOCK_SIZE); +} diff --git a/Projects/TemperatureDataLogger/Lib/SCSI.h b/Projects/TemperatureDataLogger/Lib/SCSI.h index 190d625be..914ca7b61 100644 --- a/Projects/TemperatureDataLogger/Lib/SCSI.h +++ b/Projects/TemperatureDataLogger/Lib/SCSI.h @@ -1,86 +1,86 @@ -/* - LUFA Library - Copyright (C) Dean Camera, 2010. - - dean [at] fourwalledcubicle [dot] com - www.fourwalledcubicle.com -*/ - -/* - Copyright 2010 Dean Camera (dean [at] fourwalledcubicle [dot] com) - - Permission to use, copy, modify, distribute, and sell this - software and its documentation for any purpose is hereby granted - without fee, provided that the above copyright notice appear in - all copies and that both that the copyright notice and this - permission notice and warranty disclaimer appear in supporting - documentation, and that the name of the author not be used in - advertising or publicity pertaining to distribution of the - software without specific, written prior permission. - - The author disclaim all warranties with regard to this - software, including all implied warranties of merchantability - and fitness. In no event shall the author be liable for any - special, indirect or consequential damages or any damages - whatsoever resulting from loss of use, data or profits, whether - in an action of contract, negligence or other tortious action, - arising out of or in connection with the use or performance of - this software. -*/ - -/** \file - * - * Header file for SCSI.c. - */ - -#ifndef _SCSI_H_ -#define _SCSI_H_ - - /* Includes: */ - #include - #include - - #include - #include - - #include "../TempDataLogger.h" - #include "../Descriptors.h" - #include "DataflashManager.h" - - /* Macros: */ - /** Macro to set the current SCSI sense data to the given key, additional sense code and additional sense qualifier. This - * is for convenience, as it allows for all three sense values (returned upon request to the host to give information about - * the last command failure) in a quick and easy manner. - * - * \param[in] key New SCSI sense key to set the sense code to - * \param[in] acode New SCSI additional sense key to set the additional sense code to - * \param[in] aqual New SCSI additional sense key qualifier to set the additional sense qualifier code to - */ - #define SCSI_SET_SENSE(key, acode, aqual) MACROS{ SenseData.SenseKey = (key); \ - SenseData.AdditionalSenseCode = (acode); \ - SenseData.AdditionalSenseQualifier = (aqual); }MACROE - - /** Macro for the SCSI_Command_ReadWrite_10() function, to indicate that data is to be read from the storage medium. */ - #define DATA_READ true - - /** Macro for the SCSI_Command_ReadWrite_10() function, to indicate that data is to be written to the storage medium. */ - #define DATA_WRITE false - - /** Value for the DeviceType entry in the SCSI_Inquiry_Response_t enum, indicating a Block Media device. */ - #define DEVICE_TYPE_BLOCK 0x00 - - /** Value for the DeviceType entry in the SCSI_Inquiry_Response_t enum, indicating a CD-ROM device. */ - #define DEVICE_TYPE_CDROM 0x05 - - /* Function Prototypes: */ - bool SCSI_DecodeSCSICommand(USB_ClassInfo_MS_Device_t* const MSInterfaceInfo); - - #if defined(INCLUDE_FROM_SCSI_C) - static void SCSI_Command_Inquiry(USB_ClassInfo_MS_Device_t* const MSInterfaceInfo); - static void SCSI_Command_Request_Sense(USB_ClassInfo_MS_Device_t* const MSInterfaceInfo); - static void SCSI_Command_Read_Capacity_10(USB_ClassInfo_MS_Device_t* const MSInterfaceInfo); - static void SCSI_Command_Send_Diagnostic(USB_ClassInfo_MS_Device_t* const MSInterfaceInfo); - static void SCSI_Command_ReadWrite_10(USB_ClassInfo_MS_Device_t* const MSInterfaceInfo, const bool IsDataRead); - #endif - -#endif +/* + LUFA Library + Copyright (C) Dean Camera, 2010. + + dean [at] fourwalledcubicle [dot] com + www.fourwalledcubicle.com +*/ + +/* + Copyright 2010 Dean Camera (dean [at] fourwalledcubicle [dot] com) + + Permission to use, copy, modify, distribute, and sell this + software and its documentation for any purpose is hereby granted + without fee, provided that the above copyright notice appear in + all copies and that both that the copyright notice and this + permission notice and warranty disclaimer appear in supporting + documentation, and that the name of the author not be used in + advertising or publicity pertaining to distribution of the + software without specific, written prior permission. + + The author disclaim all warranties with regard to this + software, including all implied warranties of merchantability + and fitness. In no event shall the author be liable for any + special, indirect or consequential damages or any damages + whatsoever resulting from loss of use, data or profits, whether + in an action of contract, negligence or other tortious action, + arising out of or in connection with the use or performance of + this software. +*/ + +/** \file + * + * Header file for SCSI.c. + */ + +#ifndef _SCSI_H_ +#define _SCSI_H_ + + /* Includes: */ + #include + #include + + #include + #include + + #include "../TempDataLogger.h" + #include "../Descriptors.h" + #include "DataflashManager.h" + + /* Macros: */ + /** Macro to set the current SCSI sense data to the given key, additional sense code and additional sense qualifier. This + * is for convenience, as it allows for all three sense values (returned upon request to the host to give information about + * the last command failure) in a quick and easy manner. + * + * \param[in] key New SCSI sense key to set the sense code to + * \param[in] acode New SCSI additional sense key to set the additional sense code to + * \param[in] aqual New SCSI additional sense key qualifier to set the additional sense qualifier code to + */ + #define SCSI_SET_SENSE(key, acode, aqual) MACROS{ SenseData.SenseKey = (key); \ + SenseData.AdditionalSenseCode = (acode); \ + SenseData.AdditionalSenseQualifier = (aqual); }MACROE + + /** Macro for the SCSI_Command_ReadWrite_10() function, to indicate that data is to be read from the storage medium. */ + #define DATA_READ true + + /** Macro for the SCSI_Command_ReadWrite_10() function, to indicate that data is to be written to the storage medium. */ + #define DATA_WRITE false + + /** Value for the DeviceType entry in the SCSI_Inquiry_Response_t enum, indicating a Block Media device. */ + #define DEVICE_TYPE_BLOCK 0x00 + + /** Value for the DeviceType entry in the SCSI_Inquiry_Response_t enum, indicating a CD-ROM device. */ + #define DEVICE_TYPE_CDROM 0x05 + + /* Function Prototypes: */ + bool SCSI_DecodeSCSICommand(USB_ClassInfo_MS_Device_t* const MSInterfaceInfo); + + #if defined(INCLUDE_FROM_SCSI_C) + static void SCSI_Command_Inquiry(USB_ClassInfo_MS_Device_t* const MSInterfaceInfo); + static void SCSI_Command_Request_Sense(USB_ClassInfo_MS_Device_t* const MSInterfaceInfo); + static void SCSI_Command_Read_Capacity_10(USB_ClassInfo_MS_Device_t* const MSInterfaceInfo); + static void SCSI_Command_Send_Diagnostic(USB_ClassInfo_MS_Device_t* const MSInterfaceInfo); + static void SCSI_Command_ReadWrite_10(USB_ClassInfo_MS_Device_t* const MSInterfaceInfo, const bool IsDataRead); + #endif + +#endif -- cgit v1.2.3