diff options
| author | Dean Camera <[email protected]> | 2010-07-13 04:32:33 +0000 | 
|---|---|---|
| committer | Dean Camera <[email protected]> | 2010-07-13 04:32:33 +0000 | 
| commit | ac61b81a0b20b86a4865d5e2802f704ad1075541 (patch) | |
| tree | d317751beab3b669d931f9bbff83db8680e510a9 /Projects/TempDataLogger/Lib | |
| parent | d3e00ce1eca6a7736f30b2e93992d0d5a6161de6 (diff) | |
| download | qmk_firmware-ac61b81a0b20b86a4865d5e2802f704ad1075541.tar.gz qmk_firmware-ac61b81a0b20b86a4865d5e2802f704ad1075541.zip | |
Add first lot of AVRStudio project files for some of the library projects.
Diffstat (limited to 'Projects/TempDataLogger/Lib')
| -rw-r--r-- | Projects/TempDataLogger/Lib/DS1307.c | 124 | ||||
| -rw-r--r-- | Projects/TempDataLogger/Lib/DS1307.h | 109 | ||||
| -rw-r--r-- | Projects/TempDataLogger/Lib/DataflashManager.c | 525 | ||||
| -rw-r--r-- | Projects/TempDataLogger/Lib/DataflashManager.h | 81 | ||||
| -rw-r--r-- | Projects/TempDataLogger/Lib/FATFs/00readme.txt | 117 | ||||
| -rw-r--r-- | Projects/TempDataLogger/Lib/FATFs/diskio.c | 99 | ||||
| -rw-r--r-- | Projects/TempDataLogger/Lib/FATFs/diskio.h | 71 | ||||
| -rw-r--r-- | Projects/TempDataLogger/Lib/FATFs/ff.c | 3553 | ||||
| -rw-r--r-- | Projects/TempDataLogger/Lib/FATFs/ff.h | 613 | ||||
| -rw-r--r-- | Projects/TempDataLogger/Lib/FATFs/ffconf.h | 181 | ||||
| -rw-r--r-- | Projects/TempDataLogger/Lib/FATFs/integer.h | 39 | ||||
| -rw-r--r-- | Projects/TempDataLogger/Lib/SCSI.c | 281 | ||||
| -rw-r--r-- | Projects/TempDataLogger/Lib/SCSI.h | 86 | 
13 files changed, 5879 insertions, 0 deletions
| diff --git a/Projects/TempDataLogger/Lib/DS1307.c b/Projects/TempDataLogger/Lib/DS1307.c new file mode 100644 index 0000000000..8aa6ad0ef1 --- /dev/null +++ b/Projects/TempDataLogger/Lib/DS1307.c @@ -0,0 +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; +} diff --git a/Projects/TempDataLogger/Lib/DS1307.h b/Projects/TempDataLogger/Lib/DS1307.h new file mode 100644 index 0000000000..9b14ee4670 --- /dev/null +++ b/Projects/TempDataLogger/Lib/DS1307.h @@ -0,0 +1,109 @@ +/* +     Copyright (C) Dean Camera, 2010. +               +  dean [at] fourwalledcubicle [dot] com +      www.fourwalledcubicle.com +*/ + +#ifndef _DS1307_H_ +#define _DS1307_H_ + +	/* Includes: */ +		#include <avr/io.h> + +		#include <LUFA/Drivers/Peripheral/TWI.h> + +	/* 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/TempDataLogger/Lib/DataflashManager.c b/Projects/TempDataLogger/Lib/DataflashManager.c new file mode 100644 index 0000000000..48c4fa7e6a --- /dev/null +++ b/Projects/TempDataLogger/Lib/DataflashManager.c @@ -0,0 +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; +} diff --git a/Projects/TempDataLogger/Lib/DataflashManager.h b/Projects/TempDataLogger/Lib/DataflashManager.h new file mode 100644 index 0000000000..3c75c4c757 --- /dev/null +++ b/Projects/TempDataLogger/Lib/DataflashManager.h @@ -0,0 +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 <avr/io.h> +		 +		#include "TempDataLogger.h" +		#include "Descriptors.h" + +		#include <LUFA/Common/Common.h> +		#include <LUFA/Drivers/USB/USB.h> +		#include <LUFA/Drivers/USB/Class/MassStorage.h> +		#include <LUFA/Drivers/Board/Dataflash.h> + +	/* 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/TempDataLogger/Lib/FATFs/00readme.txt b/Projects/TempDataLogger/Lib/FATFs/00readme.txt new file mode 100644 index 0000000000..fa2fa84c82 --- /dev/null +++ b/Projects/TempDataLogger/Lib/FATFs/00readme.txt @@ -0,0 +1,117 @@ +FatFs Module Source Files R0.08                        (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, 2009, 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, 2009, R0.07a Separated out OS dependent code on reentrant cfg. +                       Added multiple sector size support. + +  Jun 21, 2009, 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, 2009 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. + +  May 15, 2010, R0.08  Added a memory configuration option. (_USE_LFN) +                       Added file lock feature. (_FS_SHARE) +                       Added fast seek feature. (_USE_FASTSEEK) +                       Changed some types on the API, XCHAR->TCHAR. +                       Changed fname member in the FILINFO structure on Unicode cfg. +                       String functions support UTF-8 encoding files on Unicode cfg. diff --git a/Projects/TempDataLogger/Lib/FATFs/diskio.c b/Projects/TempDataLogger/Lib/FATFs/diskio.c new file mode 100644 index 0000000000..d4f3897bb1 --- /dev/null +++ b/Projects/TempDataLogger/Lib/FATFs/diskio.c @@ -0,0 +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); +} diff --git a/Projects/TempDataLogger/Lib/FATFs/diskio.h b/Projects/TempDataLogger/Lib/FATFs/diskio.h new file mode 100644 index 0000000000..ad126712d1 --- /dev/null +++ b/Projects/TempDataLogger/Lib/FATFs/diskio.h @@ -0,0 +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 diff --git a/Projects/TempDataLogger/Lib/FATFs/ff.c b/Projects/TempDataLogger/Lib/FATFs/ff.c new file mode 100644 index 0000000000..236c86fbcd --- /dev/null +++ b/Projects/TempDataLogger/Lib/FATFs/ff.c @@ -0,0 +1,3553 @@ +/*----------------------------------------------------------------------------/ +/  FatFs - FAT file system module  R0.08                  (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 terms. +/ +/  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) partition. +/ 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 algorithm 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 physical 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. +/ +/ May 15,'10 R0.08  Added a memory configuration option. (_USE_LFN) +/                   Added file lock feature. (_FS_SHARE) +/                   Added fast seek feature. (_USE_FASTSEEK) +/                   Changed some types on the API, XCHAR->TCHAR. +/                   Changed fname member in the FILINFO structure on Unicode cfg. +/                   String functions support UTF-8 encoding files on Unicode cfg. +/---------------------------------------------------------------------------*/ + +#include "ff.h"			/* FatFs configurations and declarations */ +#include "diskio.h"		/* Declarations of low level disk I/O functions */ + + +/*-------------------------------------------------------------------------- + +   Module Private Definitions + +---------------------------------------------------------------------------*/ + +#if _FATFS != 8085 +#error Wrong include file (ff.h). +#endif + + +/* FAT sub-type boundaries */ +/* Note that the FAT spec by Microsoft says 4085 but Windows works with 4087! */ +#define MIN_FAT16	4086	/* Minimum number of clusters for FAT16 */ +#define	MIN_FAT32	65526	/* Minimum number of clusters for FAT32 */ + + +/* 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)->ssize) +#else +#error Wrong sector size. +#endif + + +/* Reentrancy related */ +#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); } + + +/* Character code support macros */ +#define IsUpper(c)	(((c)>='A')&&((c)<='Z')) +#define IsLower(c)	(((c)>='a')&&((c)<='z')) +#define IsDigit(c)	(((c)>='0')&&((c)<='9')) + +#if _DF1S		/* Code page is DBCS */ + +#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			/* Code page is SBCS */ + +#define IsDBCS1(c)	0 +#define IsDBCS2(c)	0 + +#endif /* _DF1S */ + + +/* 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 */ + + + +/*------------------------------------------------------------*/ +/* Work area                                                  */ + +#if !_DRIVES +#error Number of drives must not be 0. +#endif +static +WORD Fsid;				/* File system mount ID */ +static +FATFS *FatFs[_DRIVES];	/* Pointer to the file system objects (logical drives) */ + +#if _FS_RPATH +static +BYTE Drive;				/* Current drive */ +#endif + + +#if _USE_LFN == 0			/* No LFN */ +#define	DEF_NAMEBUF			BYTE sfn[12] +#define INIT_BUF(dobj)		(dobj).fn = sfn +#define	FREE_BUF() + +#elif _USE_LFN == 1			/* LFN with static LFN working buffer */ +static WCHAR LfnBuf[_MAX_LFN + 1]; +#define	DEF_NAMEBUF			BYTE sfn[12] +#define INIT_BUF(dobj)		{ (dobj).fn = sfn; (dobj).lfn = LfnBuf; } +#define	FREE_BUF() + +#elif _USE_LFN == 2 		/* LFN with dynamic LFN working buffer on the stack */ +#define	DEF_NAMEBUF			BYTE sfn[12]; WCHAR lbuf[_MAX_LFN + 1] +#define INIT_BUF(dobj)		{ (dobj).fn = sfn; (dobj).lfn = lbuf; } +#define	FREE_BUF() + +#elif _USE_LFN == 3 		/* LFN with dynamic LFN working buffer on the heap */ +#define	DEF_NAMEBUF			BYTE sfn[12]; WCHAR *lfn +#define INIT_BUF(dobj)		{ lfn = ff_memalloc((_MAX_LFN + 1) * 2); \ +							  if (!lfn) LEAVE_FF((dobj).fs, FR_NOT_ENOUGH_CORE); \ +							  (dobj).lfn = lfn;	(dobj).fn = sfn; } +#define	FREE_BUF()			ff_memfree(lfn) + +#else +#error Wrong LFN configuration. +#endif + + + + +/*-------------------------------------------------------------------------- + +   Module Private Functions + +---------------------------------------------------------------------------*/ + + +/*-----------------------------------------------------------------------*/ +/* String functions                                                      */ +/*-----------------------------------------------------------------------*/ + +/* Copy memory to memory */ +static +void mem_cpy (void* dst, const void* src, int cnt) { +	BYTE *d = (BYTE*)dst; +	const BYTE *s = (const BYTE*)src; + +#if _WORD_ACCESS == 1 +	while (cnt >= sizeof(int)) { +		*(int*)d = *(int*)s; +		d += sizeof(int); s += sizeof(int); +		cnt -= sizeof(int); +	} +#endif +	while (cnt--) +		*d++ = *s++; +} + +/* Fill memory */ +static +void mem_set (void* dst, int val, int cnt) { +	BYTE *d = (BYTE*)dst; + +	while (cnt--) +		*d++ = (BYTE)val; +} + +/* Compare memory to memory */ +static +int mem_cmp (const void* dst, const void* src, int cnt) { +	const BYTE *d = (const BYTE *)dst, *s = (const BYTE *)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 +int 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 + + + +/*-----------------------------------------------------------------------*/ +/* File shareing control functions                                       */ +/*-----------------------------------------------------------------------*/ +#if _FS_SHARE + +static +FRESULT chk_lock (	/* Check if the file can be accessed */ +	DIR* dj,		/* Directory object pointing the file to be checked */ +	int acc			/* Desired access (0:Read, 1:Write, 2:Delete/Rename) */ +) +{ +	UINT i, be; + +	/* Search file semaphore table */ +	for (i = be = 0; i < _FS_SHARE; i++) { +		if (dj->fs->flsem[i].ctr) {	/* Existing entry */ +			if (dj->fs->flsem[i].clu == dj->sclust && 	/* The file is found (identified with its location) */ +				dj->fs->flsem[i].idx == dj->index) break; +		} else {					/* Blank entry */ +			be++; +		} +	} +	if (i == _FS_SHARE)	/* The file has not been opened */ +		return (be || acc != 2) ? FR_OK : FR_TOO_MANY_OPEN_FILES;	/* Is there a blank entry for new file? */ + +	/* The file has been opened. Reject any open against writing file and all write mode open */ +	return (acc || dj->fs->flsem[i].ctr == 0x100) ? FR_LOCKED : FR_OK; +} + + +static +int enq_lock (	/* Check if an entry is available for a new file */ +	FATFS* fs	/* File system object */ +) +{ +	UINT i; + +	for (i = 0; i < _FS_SHARE && fs->flsem[i].ctr; i++) ; +	return (i == _FS_SHARE) ? 0 : 1; +} + + +static +UINT inc_lock (	/* Increment file open counter and returns its index (0:int error) */ +	DIR* dj,	/* Directory object pointing the file to register or increment */ +	int acc		/* Desired access mode (0:Read, !0:Write) */ +) +{ +	UINT i; + + +	for (i = 0; i < _FS_SHARE; i++) {	/* Find the file */ +		if (dj->fs->flsem[i].ctr && +			dj->fs->flsem[i].clu == dj->sclust && +			dj->fs->flsem[i].idx == dj->index) break; +	} + +	if (i == _FS_SHARE) {				/* Not opened. Register it as new. */ +		for (i = 0; i < _FS_SHARE && dj->fs->flsem[i].ctr; i++) ; +		if (i == _FS_SHARE) return 0;	/* No space to register (int err) */ +		dj->fs->flsem[i].clu = dj->sclust; +		dj->fs->flsem[i].idx = dj->index; +	} + +	if (acc && dj->fs->flsem[i].ctr) return 0;	/* Access violation (int err) */ + +	dj->fs->flsem[i].ctr = acc ? 0x100 : dj->fs->flsem[i].ctr + 1;	/* Set semaphore value */ + +	return i + 1; +} + + +static +FRESULT dec_lock (	/* Decrement file open counter */ +	FATFS* fs,		/* File system object */ +	UINT i			/* Semaphore index */ +) +{ +	WORD n; +	FRESULT res; + + +	if (--i < _FS_SHARE) { +		n = fs->flsem[i].ctr; +		if (n >= 0x100) n = 0; +		if (n) n--; +		fs->flsem[i].ctr = n; +		res = FR_OK; +	} else { +		res = FR_INT_ERR; +	} +	return res; +} + +#endif + + + +/*-----------------------------------------------------------------------*/ +/* Change window offset                                                  */ +/*-----------------------------------------------------------------------*/ + +static +FRESULT move_window ( +	FATFS *fs,		/* File system object */ +	DWORD sector	/* Sector number to make appearance 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->drv, fs->win, wsect, 1) != RES_OK) +				return FR_DISK_ERR; +			fs->wflag = 0; +			if (wsect < (fs->fatbase + fs->fsize)) {	/* In FAT area */ +				BYTE nf; +				for (nf = fs->n_fats; nf > 1; nf--) {	/* Reflect the change to all FAT copies */ +					wsect += fs->fsize; +					disk_write(fs->drv, fs->win, wsect, 1); +				} +			} +		} +#endif +		if (sector) { +			if (disk_read(fs->drv, 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->drv, 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->drv, CTRL_SYNC, (void*)0) != RES_OK) +			res = FR_DISK_ERR; +	} + +	return res; +} +#endif + + + + +/*-----------------------------------------------------------------------*/ +/* FAT access - Read value of a FAT entry                                */ +/*-----------------------------------------------------------------------*/ + + +DWORD get_fat (	/* 0xFFFFFFFF:Disk error, 1:Internal error, Else:Cluster status */ +	FATFS *fs,	/* File system object */ +	DWORD clst	/* Cluster# to get the link information */ +) +{ +	UINT wc, bc; +	BYTE *p; + + +	if (clst < 2 || clst >= fs->n_fatent)	/* Chack range */ +		return 1; + +	switch (fs->fs_type) { +	case FS_FAT12 : +		bc = (UINT)clst; bc += bc / 2; +		if (move_window(fs, fs->fatbase + (bc / SS(fs)))) break; +		wc = fs->win[bc % SS(fs)]; bc++; +		if (move_window(fs, fs->fatbase + (bc / SS(fs)))) break; +		wc |= fs->win[bc % SS(fs)] << 8; +		return (clst & 1) ? (wc >> 4) : (wc & 0xFFF); + +	case FS_FAT16 : +		if (move_window(fs, fs->fatbase + (clst / (SS(fs) / 2)))) break; +		p = &fs->win[clst * 2 % SS(fs)]; +		return LD_WORD(p); + +	case FS_FAT32 : +		if (move_window(fs, fs->fatbase + (clst / (SS(fs) / 4)))) break; +		p = &fs->win[clst * 4 % SS(fs)]; +		return LD_DWORD(p) & 0x0FFFFFFF; +	} + +	return 0xFFFFFFFF;	/* An error occurred 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->n_fatent - 1 */ +	DWORD val	/* New value to mark the cluster */ +) +{ +	UINT bc; +	BYTE *p; +	FRESULT res; + + +	if (clst < 2 || clst >= fs->n_fatent) {	/* Check range */ +		res = FR_INT_ERR; + +	} else { +		switch (fs->fs_type) { +		case FS_FAT12 : +			bc = clst; bc += bc / 2; +			res = move_window(fs, fs->fatbase + (bc / SS(fs))); +			if (res != FR_OK) break; +			p = &fs->win[bc % SS(fs)]; +			*p = (clst & 1) ? ((*p & 0x0F) | ((BYTE)val << 4)) : (BYTE)val; +			bc++; +			fs->wflag = 1; +			res = move_window(fs, fs->fatbase + (bc / SS(fs))); +			if (res != FR_OK) break; +			p = &fs->win[bc % SS(fs)]; +			*p = (clst & 1) ? (BYTE)(val >> 4) : ((*p & 0xF0) | ((BYTE)(val >> 8) & 0x0F)); +			break; + +		case FS_FAT16 : +			res = move_window(fs, fs->fatbase + (clst / (SS(fs) / 2))); +			if (res != FR_OK) break; +			p = &fs->win[clst * 2 % SS(fs)]; +			ST_WORD(p, (WORD)val); +			break; + +		case FS_FAT32 : +			res = move_window(fs, fs->fatbase + (clst / (SS(fs) / 4))); +			if (res != FR_OK) break; +			p = &fs->win[clst * 4 % SS(fs)]; +			val |= LD_DWORD(p) & 0xF0000000; +			ST_DWORD(p, 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->n_fatent) {	/* Check range */ +		res = FR_INT_ERR; + +	} else { +		res = FR_OK; +		while (clst < fs->n_fatent) {			/* 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; + + +	if (clst == 0) {		/* Create a new chain */ +		scl = fs->last_clust;			/* Get suggested start point */ +		if (!scl || scl >= fs->n_fatent) scl = 1; +	} +	else {					/* Stretch the current chain */ +		cs = get_fat(fs, clst);			/* Check the cluster status */ +		if (cs < 2) return 1;			/* It is an invalid cluster */ +		if (cs < fs->n_fatent) return cs;	/* It is already followed by next cluster */ +		scl = clst; +	} + +	ncl = scl;				/* Start cluster */ +	for (;;) { +		ncl++;							/* Next cluster */ +		if (ncl >= fs->n_fatent) {		/* Wrap around */ +			ncl = 2; +			if (ncl > scl) return 0;	/* No free cluster */ +		} +		cs = get_fat(fs, ncl);			/* Get the cluster status */ +		if (cs == 0) break;				/* Found a free cluster */ +		if (cs == 0xFFFFFFFF || cs == 1)/* An error occurred */ +			return cs; +		if (ncl == scl) return 0;		/* No free cluster */ +	} + +	if (put_fat(fs, ncl, 0x0FFFFFFF))	/* Mark the new cluster "last link" */ +		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->n_fatent - 2)) return 0;		/* Invalid cluster# */ +	return clst * fs->csize + fs->database; +} + + + + +/*-----------------------------------------------------------------------*/ +/* Directory handling - Set directory index                              */ +/*-----------------------------------------------------------------------*/ + +static +FRESULT dir_sdi ( +	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->n_fatent)	/* 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->n_fatent)	/* 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 stretch */ +	DIR *dj,		/* Pointer to directory object */ +	int stretch		/* 0: Do not stretch table, 1: Stretch 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->n_fatent) {					/* When it reached end of dynamic table */ +#if !_FS_READONLY +					BYTE c; +					if (!stretch) return FR_NO_FILE;			/* When do not stretch, report EOT */ +					clst = create_chain(dj->fs, dj->clust);		/* Stretch 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 stretched 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 +int cmp_lfn (			/* 1:Matched, 0: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 0;				/* Not matched */ +		} else { +			if (uc != 0xFFFF) return 0;	/* 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 0; + +	return 1;						/* The part of LFN matched */ +} + + + +static +int pick_lfn (			/* 1:Succeeded, 0: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 0;	/* Buffer overflow? */ +			lfnbuf[i++] = wc = uc;			/* Store it */ +		} else { +			if (uc != 0xFFFF) return 0;		/* 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 0;		/* Buffer overflow? */ +		lfnbuf[i] = 0; +	} + +	return 1; +} + + +#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 generated SFN */ +	const BYTE *src,	/* Pointer to source SFN to be modified */ +	const WCHAR *lfn,	/* Pointer to LFN */ +	WORD seq			/* Sequence number */ +) +{ +	BYTE ns[8], c; +	int i, j; + + +	mem_cpy(dst, src, 11); + +	if (seq > 5) {	/* On many collisions, generate a hash number instead of sequential number */ +		do seq = (seq >> 1) + (seq << 15) + (WORD)*lfn++; while (*lfn); +	} + +	/* itoa */ +	i = 7; +	do { +		c = (seq % 16) + '0'; +		if (c > '9') c += 7; +		ns[i--] = c; +		seq /= 16; +	} while (seq); +	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_sdi(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, 0);		/* 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, 0);				/* 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 = 0;			/* 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 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_sdi(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 contiguous entry */ +			if (++n == ne) break;	/* A contiguous entry that required count is found */ +		} else { +			n = 0;					/* Not a blank entry. Restart to search */ +		} +		res = dir_next(dj, 1);		/* Next entry with table stretch */ +	} while (res == FR_OK); + +	if (res == FR_OK && ne > 1) {	/* Initialize LFN entry if needed */ +		res = dir_sdi(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, 0);	/* Next entry */ +			} while (res == FR_OK && --ne); +		} +	} + +#else	/* Non LFN configuration */ +	res = dir_sdi(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, 1);			/* Next entry with table stretch */ +		} 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 */ +#if _USE_LFN +			dir[DIR_NTres] = *(dj->fn+NS) & (NS_BODY | NS_EXT);	/* Put NT flag */ +#endif +			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_sdi(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, 0);		/* Next entry */ +		} while (res == FR_OK); +		if (res == FR_NO_FILE) res = FR_INT_ERR; +	} + +#else			/* Non LFN configuration */ +	res = dir_sdi(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 TCHAR **path	/* Pointer to pointer to the segment in the path string */ +) +{ +#ifdef _EXCVT +	static const BYTE excvt[] = _EXCVT;	/* Upper conversion table for extended chars */ +#endif + +#if _USE_LFN	/* LFN configuration */ +	BYTE b, cf; +	WCHAR w, *lfn; +	int i, ni, si, di; +	const TCHAR *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];						/* Return 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 nul 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 end 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 = excvt[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 = (BYTE)p[si++]; +			if (c != '.' || si >= 3) break; +			sfn[i++] = c; +		} +		if (c != '/' && c != '\\' && c > ' ') return FR_INVALID_NAME; +		*path = &p[si];									/* Return 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 = (BYTE)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 = excvt[c - 0x80];		/* Convert extend char (SBCS) */ +#else +			b |= 3;						/* Eliminate NT flag if extended char is exist */ +#if !_DF1S	/* ASCII only cfg */ +			return FR_INVALID_NAME; +#endif +#endif +		} +		if (IsDBCS1(c)) {				/* DBC 1st byte? */ +			d = (BYTE)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];						/* Return 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 nul 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 (Name extension has only small capital) */ +	if ((b & 0x0C) == 0x04) c |= NS_BODY;	/* NT flag (Name body 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 nt, *dir; +	TCHAR *p, c; + + +	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 = (TCHAR)0xE5; +			if (_USE_LFN && (nt & NS_BODY) && IsUpper(c)) c += 0x20; +#if _LFN_UNICODE +			if (IsDBCS1(c) && i < 7 && IsDBCS2(dir[i + 1])) +				c = (c << 8) | dir[++i]; +			c = ff_convert(c, 1); +			if (!c) c = '?'; +#endif +			*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; +#if _LFN_UNICODE +				if (IsDBCS1(c) && i < 10 && IsDBCS2(dir[i + 1])) +					c = (c << 8) | dir[++i]; +				c = ff_convert(c, 1); +				if (!c) c = '?'; +#endif +				*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) { +		TCHAR *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++] = (TCHAR)(w >> 8); +#endif +				if (i >= fno->lfsize - 1) { i = 0; break; }	/* Buffer overrun, no LFN */ +				tp[i++] = (TCHAR)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 TCHAR *path	/* Full-path string to find a file or directory */ +) +{ +	FRESULT res; +	BYTE *dir, ns; + + +#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 separator */ +		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 < ' ') {			/* Nul path means the start directory itself */ +		res = dir_sdi(dj, 0); +		dj->dir = 0; + +	} else {							/* Follow path */ +		for (;;) { +			res = create_name(dj, &path);	/* Get a segment */ +			if (res != FR_OK) break; +			res = dir_find(dj);				/* Find it */ +			ns = *(dj->fn+NS); +			if (res != FR_OK) {				/* Failed to find the object */ +				if (res != FR_NO_FILE) break;	/* Abort if any hard error occured */ +				/* Object not found */ +				if (_FS_RPATH && (ns & NS_DOT)) {	/* If dot entry is not exit */ +					dj->sclust = 0; dj->dir = 0;	/* It is the root dir */ +					res = FR_OK; +					if (!(ns & NS_LAST)) continue; +				} else {							/* Could not find the object */ +					if (!(ns & NS_LAST)) res = FR_NO_PATH; +				} +				break; +			} +			if (ns & NS_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 BR, 1:Valid BR but not an FAT, 2:Not a BR, 3:Disk 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->drv, 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                               */ +/*-----------------------------------------------------------------------*/ + +static +FRESULT chk_mounted (	/* FR_OK(0): successful, !=0: any error occurred */ +	const TCHAR **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, b, *tbl; +	UINT vol; +	DSTATUS stat; +	DWORD bsect, fasize, tsect, sysect, nclst, szbfat; +	WORD nrsv; +	const TCHAR *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];			/* Return 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->drv); +		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 (initialize the file system object) */ + +	fs->fs_type = 0;					/* Clear the file system object */ +	fs->drv = (BYTE)LD2PD(vol);			/* Bind the logical drive and a physical drive */ +	stat = disk_initialize(fs->drv);	/* 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->drv, 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 (Supports only generic partitionings, FDISK and SFD) */ +	fmt = check_fs(fs, bsect = 0);		/* Check sector 0 if it is a VBR */ +	if (fmt == 1) {						/* Not an FAT-VBR, the disk may be partitioned */ +		/* Check the 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) return FR_NO_FILESYSTEM;					/* No FAT volume is found */ + +	/* Following code initializes the file system object */ + +	if (LD_WORD(fs->win+BPB_BytsPerSec) != SS(fs))		/* (BPB_BytsPerSec must be equal to the physical sector size) */ +		return FR_NO_FILESYSTEM; + +	fasize = LD_WORD(fs->win+BPB_FATSz16);				/* Number of sectors per FAT */ +	if (!fasize) fasize = LD_DWORD(fs->win+BPB_FATSz32); +	fs->fsize = fasize; + +	fs->n_fats = b = fs->win[BPB_NumFATs];				/* Number of FAT copies */ +	if (b != 1 && b != 2) return FR_NO_FILESYSTEM;		/* (Must be 1 or 2) */ +	fasize *= b;										/* Number of sectors for FAT area */ + +	fs->csize = b = fs->win[BPB_SecPerClus];			/* Number of sectors per cluster */ +	if (!b || (b & (b - 1))) return FR_NO_FILESYSTEM;	/* (Must be 1,2,4...128) */ + +	fs->n_rootdir = LD_WORD(fs->win+BPB_RootEntCnt);	/* Number of root directory entries */ +	if (fs->n_rootdir % (SS(fs) / 32)) return FR_NO_FILESYSTEM;	/* (BPB_RootEntCnt must be sector aligned) */ + +	tsect = LD_WORD(fs->win+BPB_TotSec16);				/* Number of sectors on the volume */ +	if (!tsect) tsect = LD_DWORD(fs->win+BPB_TotSec32); + +	nrsv = LD_WORD(fs->win+BPB_RsvdSecCnt);				/* Number of reserved sectors */ +	if (!nrsv) return FR_NO_FILESYSTEM;					/* (BPB_RsvdSecCnt must not be 0) */ + +	/* Determine the FAT sub type */ +	sysect = nrsv + fasize + fs->n_rootdir / (SS(fs) / 32);	/* RSV+FAT+DIR */ +	if (tsect < sysect) return FR_NO_FILESYSTEM;		/* (Invalid volume size) */ +	nclst = (tsect - sysect) / fs->csize;				/* Number of clusters */ +	if (!nclst) return FR_NO_FILESYSTEM;				/* (Invalid volume size) */ +	fmt = FS_FAT12; +	if (nclst >= MIN_FAT16) fmt = FS_FAT16; +	if (nclst >= MIN_FAT32) fmt = FS_FAT32; + +	/* Boundaries and Limits */ +	fs->n_fatent = nclst + 2;							/* Number of FAT entries */ +	fs->database = bsect + sysect;						/* Data start sector */ +	fs->fatbase = bsect + nrsv; 						/* FAT start sector */ +	if (fmt == FS_FAT32) { +		if (fs->n_rootdir) return FR_NO_FILESYSTEM;		/* (BPB_RootEntCnt must be 0) */ +		fs->dirbase = LD_DWORD(fs->win+BPB_RootClus);	/* Root directory start cluster */ +		szbfat = fs->n_fatent * 4;						/* (Required FAT size) */ +	} else { +		if (!fs->n_rootdir)	return FR_NO_FILESYSTEM;	/* (BPB_RootEntCnt must not be 0) */ +		fs->dirbase = fs->fatbase + fasize;				/* Root directory start sector */ +		szbfat = (fmt == FS_FAT16) ?					/* (Required FAT size) */ +			fs->n_fatent * 2 : fs->n_fatent * 3 / 2 + (fs->n_fatent & 1); +	} +	if (fs->fsize < (szbfat + (SS(fs) - 1)) / SS(fs))	/* (FAT size must not be less than FAT sectors */ +		return FR_NO_FILESYSTEM; + +#if !_FS_READONLY +	/* Initialize cluster allocation information */ +	fs->free_clust = 0xFFFFFFFF; +	fs->last_clust = 0; + +	/* Get fsinfo if available */ +	if (fmt == FS_FAT32) { +	 	fs->fsi_flag = 0; +		fs->fsi_sector = bsect + LD_WORD(fs->win+BPB_FSInfo); +		if (disk_read(fs->drv, 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->id = ++Fsid;		/* File system mount ID */ +	fs->winsect = 0;		/* Invalidate sector cache */ +	fs->wflag = 0; +#if _FS_RPATH +	fs->cdir = 0;			/* Current directory (root dir) */ +#endif +#if _FS_SHARE				/* Clear file lock semaphores */ +	for (vol = 0; vol < _FS_SHARE; vol++) +		fs->flsem[vol].ctr = 0; +#endif + +	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->drv) & STA_NOINIT) +		return FR_NOT_READY; + +	return FR_OK; +} + + + + +/*-------------------------------------------------------------------------- + +   Public Functions + +--------------------------------------------------------------------------*/ + + + +/*-----------------------------------------------------------------------*/ +/* Mount/Unmount a Logical 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 TCHAR *path,	/* Pointer to the file name */ +	BYTE mode			/* Access mode and file open mode flags */ +) +{ +	FRESULT res; +	DIR dj; +	BYTE *dir; +	DEF_NAMEBUF; + + +	fp->fs = 0;			/* 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_READ)); +#else +	mode &= FA_READ; +	res = chk_mounted(&path, &dj.fs, 0); +#endif +	INIT_BUF(dj); +	if (res == FR_OK) +		res = follow_path(&dj, path);	/* Follow the file path */ +	dir = dj.dir; + +#if !_FS_READONLY	/* R/W configuration */ +	if (res == FR_OK) { +		if (!dir)	/* Current dir itself */ +			res = FR_INVALID_NAME; +#if _FS_SHARE +		else +			res = chk_lock(&dj, (mode & ~FA_READ) ? 1 : 0); +#endif +	} +	/* Create or Open a file */ +	if (mode & (FA_CREATE_ALWAYS | FA_OPEN_ALWAYS | FA_CREATE_NEW)) { +		DWORD dw, cl; + +		if (res != FR_OK) {				/* No file, create new */ +			if (res == FR_NO_FILE)		/* There is no file to open, create a new entry */ +#if _FS_SHARE +				res = enq_lock(dj.fs) ? dir_register(&dj) : FR_TOO_MANY_OPEN_FILES; +#else +				res = dir_register(&dj); +#endif +			mode |= FA_CREATE_ALWAYS; +			dir = dj.dir;				/* New entry */ +		} +		else {							/* Any object is already existing */ +			if (mode & FA_CREATE_NEW) {			/* Cannot create new */ +				res = FR_EXIST; +			} else { +				if (dir[DIR_Attr] & (AM_RDO | AM_DIR))	/* Cannot overwrite it (R/O or DIR) */ +					res = FR_DENIED; +			} +		} +		if (res == FR_OK && (mode & FA_CREATE_ALWAYS)) {	/* Truncate it if overwrite mode */ +			dw = get_fattime();						/* Created time */ +			ST_DWORD(dir+DIR_CrtTime, dw); +			dir[DIR_Attr] = 0;					/* Reset attribute */ +			ST_DWORD(dir+DIR_FileSize, 0);		/* size = 0 */ +			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); +			dj.fs->wflag = 1; +			if (cl) {							/* Remove the cluster chain if exist */ +				dw = dj.fs->winsect; +				res = remove_chain(dj.fs, cl); +				if (res == FR_OK) { +					dj.fs->last_clust = cl - 1;	/* Reuse the cluster hole */ +					res = move_window(dj.fs, dw); +				} +			} +		} +	} +	else {	/* Open an existing file */ +		if (res == FR_OK) {						/* Follow succeeded */ +			if (dir[DIR_Attr] & AM_DIR) {		/* It is a directory */ +				res = FR_NO_FILE; +			} else { +				if ((mode & FA_WRITE) && (dir[DIR_Attr] & AM_RDO)) /* R/O violation */ +					res = FR_DENIED; +			} +		} +	} +	if (res == FR_OK) { +		if (mode & (FA_WRITE | FA_CREATE_ALWAYS | FA_OPEN_ALWAYS | FA_CREATE_NEW)) +			mode |= FA__WRITTEN;				/* Set file changed flag */ +		fp->dir_sect = dj.fs->winsect;			/* Pointer to the directory entry */ +		fp->dir_ptr = dir; +#if _FS_SHARE +		fp->lockid = inc_lock(&dj, (mode & ~FA_READ) ? 1 : 0); +		if (!fp->lockid) res = FR_INT_ERR; +#endif +	} + +#else				/* R/O configuration */ +	if (res == FR_OK) {					/* Follow succeeded */ +		if (!dir) {						/* Current dir itself */ +			res = FR_INVALID_NAME; +		} else { +			if (dir[DIR_Attr] & AM_DIR)	/* It is a directory */ +				res = FR_NO_FILE; +		} +	} +#endif +	FREE_BUF(); + +	if (res == FR_OK) { +		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;						/* File pointer */ +		fp->dsect = 0; +#if _USE_FASTSEEK +		fp->cltbl = 0;						/* No cluster link map table */ +#endif +		fp->fs = dj.fs; fp->id = dj.fs->id;	/* Validate file object */ +	} + +	LEAVE_FF(dj.fs, res); +} + + + + +/*-----------------------------------------------------------------------*/ +/* 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 csect, *rbuff = buff; + + +	*br = 0;	/* Initialize byte counter */ + +	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? */ +			csect = (BYTE)(fp->fptr / SS(fp->fs) & (fp->fs->csize - 1));	/* Sector offset in the cluster */ +			if (!csect) {							/* 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 */ +			} +			sect = clust2sect(fp->fs, fp->curr_clust);	/* Get current sector */ +			if (!sect) ABORT(fp->fs, FR_INT_ERR); +			sect += csect; +			cc = btr / SS(fp->fs);					/* When remaining bytes >= sector size, */ +			if (cc) {								/* Read maximum contiguous sectors directly */ +				if (csect + cc > fp->fs->csize)		/* Clip at cluster boundary */ +					cc = fp->fs->csize - csect; +				if (disk_read(fp->fs->drv, rbuff, sect, (BYTE)cc) != RES_OK) +					ABORT(fp->fs, FR_DISK_ERR); +#if !_FS_READONLY && _FS_MINIMIZE <= 2				/* Replace one of the read sectors with cached data if it contains a dirty sector */ +#if _FS_TINY +				if (fp->fs->wflag && fp->fs->winsect - sect < cc) +					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) +					mem_cpy(rbuff + ((fp->dsect - sect) * SS(fp->fs)), fp->buf, SS(fp->fs)); +#endif +#endif +				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->drv, 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->drv, fp->buf, sect, 1) != RES_OK) +					ABORT(fp->fs, FR_DISK_ERR); +			} +#endif +			fp->dsect = sect; +		} +		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; +	BYTE csect; + + +	*bw = 0;	/* Initialize byte counter */ + +	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? */ +			csect = (BYTE)(fp->fptr / SS(fp->fs) & (fp->fs->csize - 1));	/* Sector offset in the cluster */ +			if (!csect) {							/* 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 stretch 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 */ +			} +#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->drv, 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 += csect; +			cc = btw / SS(fp->fs);					/* When remaining bytes >= sector size, */ +			if (cc) {								/* Write maximum contiguous sectors directly */ +				if (csect + cc > fp->fs->csize)		/* Clip at cluster boundary */ +					cc = fp->fs->csize - csect; +				if (disk_write(fp->fs->drv, 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 +				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->drv, fp->buf, sect, 1) != RES_OK) +						ABORT(fp->fs, FR_DISK_ERR); +			} +#endif +			fp->dsect = sect; +		} +		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->drv, 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();						/* Update 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 +	FATFS *fs = fp->fs; +	res = validate(fs, fp->id); +	if (res == FR_OK) fp->fs = 0;	/* Discard file object */ +	LEAVE_FF(fs, res); + +#else +	res = f_sync(fp);		/* Flush cached data */ +#if _FS_SHARE +	if (res == FR_OK) {		/* Decrement open counter */ +#if _FS_REENTRANT +		res = validate(fp->fs, fp->id); +		if (res == FR_OK) { +			res = dec_lock(fp->fs, fp->lockid);	 +			unlock_fs(fp->fs, FR_OK); +		} +#else +		res = dec_lock(fp->fs, fp->lockid); +#endif +	} +#endif +	if (res == FR_OK) fp->fs = 0;	/* Discard file object */ +	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 TCHAR *path	/* Pointer to the directory path */ +) +{ +	FRESULT res; +	DIR dj; +	BYTE *dir; +	DEF_NAMEBUF; + + +	res = chk_mounted(&path, &dj.fs, 0); +	if (res == FR_OK) { +		INIT_BUF(dj); +		res = follow_path(&dj, path);		/* Follow the path */ +		FREE_BUF(); +		if (res == FR_OK) {					/* Follow completed */ +			dir = dj.dir;					/* Pointer to the entry */ +			if (!dir) { +				dj.fs->cdir = dj.sclust;	/* Start directory itself */ +			} else { +				if (dir[DIR_Attr] & AM_DIR)	/* Reached to the directory */ +					dj.fs->cdir = ((DWORD)LD_WORD(dir+DIR_FstClusHI) << 16) | LD_WORD(dir+DIR_FstClusLO); +				else +					res = FR_NO_PATH;		/* Reached but 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; + + +	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 _USE_FASTSEEK +	if (fp->cltbl) {	/* Fast seek */ +		DWORD cl, pcl, ncl, tcl, dsc, tlen, *tbl = fp->cltbl; +		BYTE csc; + +		tlen = *tbl++; +		if (ofs == CREATE_LINKMAP) {	/* Create link map table */ +			cl = fp->org_clust; +			if (cl) { +				do { +					if (tlen < 4) {	/* Not enough table items */ +						res = FR_NOT_ENOUGH_CORE; break; +					} +					tcl = cl; ncl = 0; +					do {		/* Get a fragment and store the top and length */ +						pcl = cl; ncl++; +						cl = get_fat(fp->fs, cl); +						if (cl <= 1) ABORT(fp->fs, FR_INT_ERR); +						if (cl == 0xFFFFFFFF) ABORT(fp->fs, FR_DISK_ERR); +					} while (cl == pcl + 1); +					*tbl++ = ncl; *tbl++ = tcl; +					tlen -= 2; +				} while (cl < fp->fs->n_fatent); +			} +			*tbl = 0;	/* Terminate table */ + +		} else {						/* Fast seek */ +			if (ofs > fp->fsize)		/* Clip offset at the file size */ +				ofs = fp->fsize; +			fp->fptr = ofs;				/* Set file pointer */ +			if (ofs) { +				dsc = (ofs - 1) / SS(fp->fs); +				cl = dsc / fp->fs->csize; +				for (;;) { +					ncl = *tbl++; +					if (!ncl) ABORT(fp->fs, FR_INT_ERR); +					if (cl < ncl) break; +					cl -= ncl; tbl++; +				} +				fp->curr_clust = cl + *tbl; +				csc = (BYTE)(dsc & (fp->fs->csize - 1)); +				dsc = clust2sect(fp->fs, fp->curr_clust); +				if (!dsc) ABORT(fp->fs, FR_INT_ERR); +				dsc += csc; +				if (fp->fptr % SS(fp->fs) && dsc != fp->dsect) { +#if !_FS_TINY +#if !_FS_READONLY +					if (fp->flag & FA__DIRTY) {		/* Flush dirty buffer if needed */ +						if (disk_write(fp->fs->drv, fp->buf, fp->dsect, 1) != RES_OK) +							ABORT(fp->fs, FR_DISK_ERR); +						fp->flag &= ~FA__DIRTY; +					} +#endif +					if (disk_read(fp->fs->drv, fp->buf, dsc, 1) != RES_OK) +						ABORT(fp->fs, FR_DISK_ERR); +#endif +					fp->dsect = dsc; +				} +			} +		} +	} else +#endif + +	/* Normal Seek */ +	{ +		DWORD clst, bcs, nsect, ifptr; + +		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; +		if (ofs) { +			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 stretch 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->n_fatent) ABORT(fp->fs, FR_INT_ERR); +					fp->curr_clust = clst; +					fp->fptr += bcs; +					ofs -= bcs; +				} +				fp->fptr += ofs; +				if (ofs % SS(fp->fs)) { +					nsect = clust2sect(fp->fs, clst);	/* Current sector */ +					if (!nsect) ABORT(fp->fs, FR_INT_ERR); +					nsect += ofs / SS(fp->fs); +				} +			} +		} +		if (fp->fptr % SS(fp->fs) && nsect != fp->dsect) { +#if !_FS_TINY +#if !_FS_READONLY +			if (fp->flag & FA__DIRTY) {			/* Flush dirty buffer if needed */ +				if (disk_write(fp->fs->drv, fp->buf, fp->dsect, 1) != RES_OK) +					ABORT(fp->fs, FR_DISK_ERR); +				fp->flag &= ~FA__DIRTY; +			} +#endif +			if (disk_read(fp->fs->drv, 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 TCHAR *path	/* Pointer to the directory path */ +) +{ +	FRESULT res; +	BYTE *dir; +	DEF_NAMEBUF; + + +	res = chk_mounted(&path, &dj->fs, 0); +	if (res == FR_OK) { +		INIT_BUF(*dj); +		res = follow_path(dj, path);			/* Follow the path to the directory */ +		FREE_BUF(); +		if (res == FR_OK) {						/* Follow completed */ +			dir = dj->dir; +			if (dir) {							/* It is not the current 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_sdi(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; +	DEF_NAMEBUF; + + +	res = validate(dj->fs, dj->id);			/* Check validity of the object */ +	if (res == FR_OK) { +		if (!fno) { +			res = dir_sdi(dj, 0); +		} else { +			INIT_BUF(*dj); +			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, 0);		/* Increment index for next */ +				if (res == FR_NO_FILE) { +					dj->sect = 0; +					res = FR_OK; +				} +			} +			FREE_BUF(); +		} +	} + +	LEAVE_FF(dj->fs, res); +} + + + +#if _FS_MINIMIZE == 0 +/*-----------------------------------------------------------------------*/ +/* Get File Status                                                       */ +/*-----------------------------------------------------------------------*/ + +FRESULT f_stat ( +	const TCHAR *path,	/* Pointer to the file path */ +	FILINFO *fno		/* Pointer to file information to return */ +) +{ +	FRESULT res; +	DIR dj; +	DEF_NAMEBUF; + + +	res = chk_mounted(&path, &dj.fs, 0); +	if (res == FR_OK) { +		INIT_BUF(dj); +		res = follow_path(&dj, path);	/* Follow the file path */ +		if (res == FR_OK) {				/* Follow completed */ +			if (dj.dir)		/* Found an object */ +				get_fileinfo(&dj, fno); +			else			/* It is root dir */ +				res = FR_INVALID_NAME; +		} +		FREE_BUF(); +	} + +	LEAVE_FF(dj.fs, res); +} + + + +#if !_FS_READONLY +/*-----------------------------------------------------------------------*/ +/* Get Number of Free Clusters                                           */ +/*-----------------------------------------------------------------------*/ + +FRESULT f_getfree ( +	const TCHAR *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) { +		/* If free_clust is valid, return it without full cluster scan */ +		if ((*fatfs)->free_clust <= (*fatfs)->n_fatent - 2) { +			*nclst = (*fatfs)->free_clust; +		} else { +			/* 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) { res = FR_DISK_ERR; break; } +					if (stat == 1) { res = FR_INT_ERR; break; } +					if (stat == 0) n++; +				} while (++clst < (*fatfs)->n_fatent); +			} else { +				clst = (*fatfs)->n_fatent; +				sect = (*fatfs)->fatbase; +				i = 0; p = 0; +				do { +					if (!i) { +						res = move_window(*fatfs, sect++); +						if (res != FR_OK) break; +						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, res); +} + + + + +/*-----------------------------------------------------------------------*/ +/* 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) { +		if (fp->flag & FA__ERROR) {			/* Check abort flag */ +			res = FR_INT_ERR; +		} else { +			if (!(fp->flag & FA_WRITE))		/* Check access mode */ +				res = FR_DENIED; +		} +	} +	if (res == FR_OK) { +		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->n_fatent) { +					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 TCHAR *path		/* Pointer to the file or directory path */ +) +{ +	FRESULT res; +	DIR dj, sdj; +	BYTE *dir; +	DWORD dclst; +	DEF_NAMEBUF; + + +	res = chk_mounted(&path, &dj.fs, 1); +	if (res == FR_OK) { +		INIT_BUF(dj); +		res = follow_path(&dj, path);		/* Follow the file path */ +		if (_FS_RPATH && res == FR_OK && (dj.fn[NS] & NS_DOT)) +			res = FR_INVALID_NAME;			/* Cannot remove dot entry */ +#if _FS_SHARE +		if (res == FR_OK) res = chk_lock(&dj, 2);	/* Cannot remove open file */ +#endif +		if (res == FR_OK) {					/* The object is accessible */ +			dir = dj.dir; +			if (!dir) { +				res = FR_INVALID_NAME;		/* Cannot remove the start directory */ +			} else { +				if (dir[DIR_Attr] & AM_RDO) +					res = FR_DENIED;		/* Cannot remove R/O object */ +			} +			dclst = ((DWORD)LD_WORD(dir+DIR_FstClusHI) << 16) | LD_WORD(dir+DIR_FstClusLO); +			if (res == FR_OK && (dir[DIR_Attr] & AM_DIR)) {	/* Is it a sub-dir? */ +				if (dclst < 2) { +					res = FR_INT_ERR; +				} else { +					mem_cpy(&sdj, &dj, sizeof(DIR));	/* Check if the sub-dir is empty or not */ +					sdj.sclust = dclst; +					res = dir_sdi(&sdj, 2);		/* Exclude dot entries */ +					if (res == FR_OK) { +						res = dir_read(&sdj); +						if (res == FR_OK			/* Not empty dir */ +#if _FS_RPATH +						|| dclst == sdj.fs->cdir	/* Current dir */ +#endif +						) res = FR_DENIED; +						if (res == FR_NO_FILE) res = FR_OK;	/* Empty */ +					} +				} +			} +			if (res == FR_OK) { +				res = dir_remove(&dj);		/* Remove the directory entry */ +				if (res == FR_OK) { +					if (dclst)				/* Remove the cluster chain if exist */ +						res = remove_chain(dj.fs, dclst); +					if (res == FR_OK) res = sync(dj.fs); +				} +			} +		} +		FREE_BUF(); +	} +	LEAVE_FF(dj.fs, res); +} + + + + +/*-----------------------------------------------------------------------*/ +/* Create a Directory                                                    */ +/*-----------------------------------------------------------------------*/ + +FRESULT f_mkdir ( +	const TCHAR *path		/* Pointer to the directory path */ +) +{ +	FRESULT res; +	DIR dj; +	BYTE *dir, n; +	DWORD dsc, dcl, pcl, tim = get_fattime(); +	DEF_NAMEBUF; + + +	res = chk_mounted(&path, &dj.fs, 1); +	if (res == FR_OK) { +		INIT_BUF(dj); +		res = follow_path(&dj, path);			/* Follow the file path */ +		if (res == FR_OK) res = FR_EXIST;		/* Any object with same name is already existing */ +		if (_FS_RPATH && res == FR_NO_FILE && (dj.fn[NS] & NS_DOT)) +			res = FR_INVALID_NAME; +		if (res == FR_NO_FILE) {				/* Can create a new directory */ +			dcl = create_chain(dj.fs, 0);		/* Allocate a cluster for the new directory table */ +			res = FR_OK; +			if (dcl == 0) res = FR_DENIED;		/* No space to allocate a new cluster */ +			if (dcl == 1) res = FR_INT_ERR; +			if (dcl == 0xFFFFFFFF) res = FR_DISK_ERR; +			if (res == FR_OK)					/* Flush FAT */ +				res = move_window(dj.fs, 0); +			if (res == FR_OK) {					/* Initialize the new directory table */ +				dsc = clust2sect(dj.fs, dcl); +				dir = dj.fs->win; +				mem_set(dir, 0, SS(dj.fs)); +				mem_set(dir+DIR_Name, ' ', 8+3);	/* Create "." entry */ +				dir[DIR_Name] = '.'; +				dir[DIR_Attr] = AM_DIR; +				ST_DWORD(dir+DIR_WrtTime, tim); +				ST_WORD(dir+DIR_FstClusLO, dcl); +				ST_WORD(dir+DIR_FstClusHI, dcl >> 16); +				mem_cpy(dir+32, dir, 32); 			/* Create ".." entry */ +				dir[33] = '.'; pcl = dj.sclust; +				if (dj.fs->fs_type == FS_FAT32 && pcl == dj.fs->dirbase) +					pcl = 0; +				ST_WORD(dir+32+DIR_FstClusLO, pcl); +				ST_WORD(dir+32+DIR_FstClusHI, pcl >> 16); +				for (n = dj.fs->csize; n; n--) {	/* Write dot entries and clear following sectors */ +					dj.fs->winsect = dsc++; +					dj.fs->wflag = 1; +					res = move_window(dj.fs, 0); +					if (res != FR_OK) break; +					mem_set(dir, 0, SS(dj.fs)); +				} +			} +			if (res == FR_OK) res = dir_register(&dj);	/* Register the object to the directoy */ +			if (res != FR_OK) { +				remove_chain(dj.fs, dcl);				/* Could not register, remove cluster chain */ +			} else { +				dir = dj.dir; +				dir[DIR_Attr] = AM_DIR;					/* Attribute */ +				ST_DWORD(dir+DIR_WrtTime, tim);			/* Created time */ +				ST_WORD(dir+DIR_FstClusLO, dcl);		/* Table start cluster */ +				ST_WORD(dir+DIR_FstClusHI, dcl >> 16); +				dj.fs->wflag = 1; +				res = sync(dj.fs); +			} +		} +		FREE_BUF(); +	} + +	LEAVE_FF(dj.fs, res); +} + + + + +/*-----------------------------------------------------------------------*/ +/* Change Attribute                                                      */ +/*-----------------------------------------------------------------------*/ + +FRESULT f_chmod ( +	const TCHAR *path,	/* Pointer to the file path */ +	BYTE value,			/* Attribute bits */ +	BYTE mask			/* Attribute mask to change */ +) +{ +	FRESULT res; +	DIR dj; +	BYTE *dir; +	DEF_NAMEBUF; + + +	res = chk_mounted(&path, &dj.fs, 1); +	if (res == FR_OK) { +		INIT_BUF(dj); +		res = follow_path(&dj, path);		/* Follow the file path */ +		FREE_BUF(); +		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 TCHAR *path,	/* Pointer to the file/directory name */ +	const FILINFO *fno	/* Pointer to the time stamp to be set */ +) +{ +	FRESULT res; +	DIR dj; +	BYTE *dir; +	DEF_NAMEBUF; + + +	res = chk_mounted(&path, &dj.fs, 1); +	if (res == FR_OK) { +		INIT_BUF(dj); +		res = follow_path(&dj, path);	/* Follow the file path */ +		FREE_BUF(); +		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 TCHAR *path_old,	/* Pointer to the old name */ +	const TCHAR *path_new	/* Pointer to the new name */ +) +{ +	FRESULT res; +	DIR djo, djn; +	BYTE buf[21], *dir; +	DWORD dw; +	DEF_NAMEBUF; + + +	res = chk_mounted(&path_old, &djo.fs, 1); +	if (res == FR_OK) { +		djn.fs = djo.fs; +		INIT_BUF(djo); +		res = follow_path(&djo, path_old);		/* Check old object */ +		if (_FS_RPATH && res == FR_OK && (djo.fn[NS] & NS_DOT)) +			res = FR_INVALID_NAME; +#if _FS_SHARE +		if (res == FR_OK) res = chk_lock(&djo, 2); +#endif +		if (res == FR_OK) {						/* Old object is found */ +			if (!djo.dir) {						/* Is root dir? */ +				res = FR_NO_FILE; +			} else { +				mem_cpy(buf, djo.dir+DIR_Attr, 21);		/* Save the object information except for name */ +				mem_cpy(&djn, &djo, sizeof(DIR));		/* Check new object */ +				res = follow_path(&djn, path_new); +				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? */ +/* Start critical section that any interruption or error can cause cross-link */ +					res = dir_register(&djn);			/* Register the new entry */ +					if (res == FR_OK) { +						dir = djn.dir;					/* Copy object information except for name */ +						mem_cpy(dir+13, buf+2, 19); +						dir[DIR_Attr] = buf[0] | AM_ARC; +						djo.fs->wflag = 1; +						if (djo.sclust != djn.sclust && (dir[DIR_Attr] & AM_DIR)) {		/* Update .. entry in the directory if needed */ +							dw = clust2sect(djn.fs, (DWORD)LD_WORD(dir+DIR_FstClusHI) | LD_WORD(dir+DIR_FstClusLO)); +							if (!dw) { +								res = FR_INT_ERR; +							} else { +								res = move_window(djn.fs, dw); +								dir = djn.fs->win+32;	/* .. entry */ +								if (res == FR_OK && dir[1] == '.') { +									dw = (djn.fs->fs_type == FS_FAT32 && djn.sclust == djn.fs->dirbase) ? 0 : djn.sclust; +									ST_WORD(dir+DIR_FstClusLO, dw); +									ST_WORD(dir+DIR_FstClusHI, dw >> 16); +									djn.fs->wflag = 1; +								} +							} +						} +						if (res == FR_OK) { +							res = dir_remove(&djo);		/* Remove old entry */ +							if (res == FR_OK) +								res = sync(djo.fs); +						} +					} +/* End critical section */ +				} +			} +		} +		FREE_BUF(); +	} +	LEAVE_FF(djo.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 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; +	BYTE csect; + + +	*bf = 0;	/* Initialize byte counter */ + +	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)(0, 0);					/* Repeat until all data transferred or stream becomes busy */ +		fp->fptr += rcnt, *bf += rcnt, btr -= rcnt) { +		csect = (BYTE)(fp->fptr / SS(fp->fs) & (fp->fs->csize - 1));	/* Sector offset in the cluster */ +		if ((fp->fptr % SS(fp->fs)) == 0) {			/* On the sector boundary? */ +			if (!csect) {							/* 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 */ +			} +		} +		sect = clust2sect(fp->fs, fp->curr_clust);	/* Get current data sector */ +		if (!sect) ABORT(fp->fs, FR_INT_ERR); +		sect += csect; +		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 */ +#define N_FATS		1			/* 1 or 2 */ + + +FRESULT f_mkfs ( +	BYTE drv,		/* Logical drive number */ +	BYTE sfd,		/* Partitioning rule 0:FDISK, 1:SFD */ +	UINT au			/* Allocation unit size [bytes] */ +) +{ +	static const WORD vst[] = { 1024,   512,  256,  128,   64,    32,   16,    8,    4,    2,   0}; +	static const WORD cst[] = {32768, 16384, 8192, 4096, 2048, 16384, 8192, 4096, 2048, 1024, 512}; +	BYTE fmt, md, *tbl; +	DWORD n_clst, vs, n; +	UINT as, i; +	DWORD b_vol, b_fat, b_dir, b_data;		/* Area offset (LBA) */ +	DWORD n_vol, n_rsv, n_fat, n_dir;		/* Area size */ +	FATFS *fs; +	DSTATUS stat; + + +	/* Check mounted drive and clear work area */ +	if (drv >= _DRIVES) return FR_INVALID_DRIVE; +	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_DISK_ERR; +#endif +	if (disk_ioctl(drv, GET_SECTOR_COUNT, &n_vol) != RES_OK || n_vol < 128) +		return FR_DISK_ERR; +	b_vol = (sfd == 1) ? 0 : 63;	/* Volume start sector */ +	n_vol -= b_vol; +	if (au & (au - 1)) au = 0;		/* Check validity of the allocation unit size */ +	if (!au) {						/* AU auto selection */ +		vs = n_vol / (2000 / (SS(fs) / 512)); +		for (i = 0; vs < vst[i]; i++) ; +		au = cst[i]; +	} +	if (_MAX_SS != 512 && au < SS(fs)) au = SS(fs); +	au /= SS(fs);		/* Number of sectors per cluster */ +	if (au == 0) au = 1; +	if (au > 128) au = 128; + +	/* Pre-compute number of clusters and FAT syb-type */ +	n_clst = n_vol / au; +	fmt = FS_FAT12; +	if (n_clst >= MIN_FAT16) fmt = FS_FAT16; +	if (n_clst >= MIN_FAT32) fmt = FS_FAT32; + +	/* Determine offset and size of FAT structure */ +	if (fmt == FS_FAT32) { +		n_fat = ((n_clst * 4) + 8 + SS(fs) - 1) / SS(fs); +		n_rsv = 32; +		n_dir = 0; +	} else { +		n_fat = (fmt == FS_FAT12) ? (n_clst * 3 + 1) / 2 + 3 : (n_clst * 2) + 4; +		n_fat = (n_fat + SS(fs) - 1) / SS(fs); +		n_rsv = 1; +		n_dir = N_ROOTDIR * 32UL / SS(fs); +	} +	b_fat = b_vol + n_rsv;				/* FAT area start sector */ +	b_dir = b_fat + n_fat * N_FATS;		/* Directory area start sector */ +	b_data = b_dir + n_dir;				/* Data area start sector */ +	if (n_vol < b_data + au) return FR_MKFS_ABORTED;	/* Too small volume */ + +	/* Align data start sector to erase block boundary (for flash memory media) */ +	if (disk_ioctl(drv, GET_BLOCK_SIZE, &n) != RES_OK) return FR_DISK_ERR; +	if (!n || n > 32768) return FR_MKFS_ABORTED; +	n = (b_data + n - 1) & ~(n - 1);	/* Next nearest boundary from current data start */ +	n = (n - b_data) / N_FATS; +	if (fmt == FS_FAT32) {		/* FAT32: Move FAT start */ +		n_rsv += n; +		b_fat += n; +	} else {					/* FAT12/16: Expand FAT size */ +		n_fat += n; +	} +	/* b_dir and b_data are no longer used below */ + +	/* Determine number of cluster and final check of validity of the FAT sub-type */ +	n_clst = (n_vol - n_rsv - n_fat * N_FATS - n_dir) / au; +	if (   (fmt == FS_FAT16 && n_clst < MIN_FAT16) +		|| (fmt == FS_FAT32 && n_clst < MIN_FAT32)) +		return FR_MKFS_ABORTED; + +	/* Create partition table if required */ +	if (sfd == 1) { +		md = 0xF0; +	} else { +		DWORD n_disk = b_vol + n_vol; + +		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_vol < 0x10000) ? 0x04 : 0x06; +		else +			tbl[4] = 0x0c; +		ST_DWORD(tbl+8, 63);			/* Partition start in LBA */ +		ST_DWORD(tbl+12, n_vol);		/* Partition size in LBA */ +		ST_WORD(tbl+64, 0xAA55);		/* Signature */ +		if (disk_write(drv, fs->win, 0, 1) != RES_OK) +			return FR_DISK_ERR; +		md = 0xF8; +	} + +	/* Create VBR */ +	tbl = fs->win;								/* Clear buffer */ +	mem_set(tbl, 0, SS(fs)); +	ST_DWORD(tbl+BS_jmpBoot, 0x90FEEB);			/* Boot code (jmp $, nop) */ +	as = SS(fs);								/* Sector size */ +	ST_WORD(tbl+BPB_BytsPerSec, as); +	tbl[BPB_SecPerClus] = (BYTE)au;				/* Sectors per cluster */ +	ST_WORD(tbl+BPB_RsvdSecCnt, n_rsv);			/* Reserved sectors */ +	tbl[BPB_NumFATs] = N_FATS;					/* Number of FATs */ +	as = (fmt == FS_FAT32) ? 0 : N_ROOTDIR;		/* Number of rootdir entries */ +	ST_WORD(tbl+BPB_RootEntCnt, as); +	if (n_vol < 0x10000) {						/* Number of total sectors */ +		ST_WORD(tbl+BPB_TotSec16, n_vol); +	} else { +		ST_DWORD(tbl+BPB_TotSec32, n_vol); +	} +	tbl[BPB_Media] = md;						/* Media descriptor */ +	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_vol);			/* Hidden sectors */ +	n = get_fattime();							/* Use current time as VSN */ +	if (fmt == FS_FAT32) { +		ST_DWORD(tbl+BS_VolID32, n);			/* VSN */ +		ST_DWORD(tbl+BPB_FATSz32, n_fat);		/* Number of sectors per FAT */ +		ST_DWORD(tbl+BPB_RootClus, 2);			/* Root directory start cluster (2) */ +		ST_WORD(tbl+BPB_FSInfo, 1);				/* FSInfo record offset (VBR+1) */ +		ST_WORD(tbl+BPB_BkBootSec, 6);			/* Backup boot record offset (VBR+6) */ +		tbl[BS_DrvNum32] = 0x80;				/* Drive number */ +		tbl[BS_BootSig32] = 0x29;				/* Extended boot signature */ +		mem_cpy(tbl+BS_VolLab32, "NO NAME    FAT32   ", 19);	/* Volume label, FAT signature */ +	} else { +		ST_DWORD(tbl+BS_VolID, n);				/* VSN */ +		ST_WORD(tbl+BPB_FATSz16, n_fat);		/* Number of sectors 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 label, FAT signature */ +	} +	ST_WORD(tbl+BS_55AA, 0xAA55);				/* Signature (Offset is fixed here regardless of sector size) */ +	if (disk_write(drv, tbl, b_vol, 1) != RES_OK)	/* Original (VBR) */ +		return FR_DISK_ERR; +	if (fmt == FS_FAT32)						/* Backup (VBR+6) */ +		disk_write(drv, tbl, b_vol + 6, 1); + +	/* Initialize FAT area */ +	for (i = 0; i < N_FATS; i++) { +		mem_set(tbl, 0, SS(fs));			/* 1st sector of the FAT  */ +		n = md;								/* Media descriptor byte */ +		if (fmt != FS_FAT32) { +			n |= (fmt == FS_FAT12) ? 0x00FFFF00 : 0xFFFFFF00; +			ST_DWORD(tbl+0, n);				/* Reserve cluster #0-1 (FAT12/16) */ +		} else { +			n |= 0x0FFFFF00; +			ST_DWORD(tbl+0, n);				/* Reserve cluster #0-1 (FAT32) */ +			ST_DWORD(tbl+4, 0x0FFFFFFF); +			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));		/* Fill following FAT entries with zero */ +		for (n = 1; n < n_fat; n++) {	/* This loop may take a time on FAT32 volume due to many single sector write */ +			if (disk_write(drv, tbl, b_fat++, 1) != RES_OK) +				return FR_DISK_ERR; +		} +	} + +	/* Initialize root directory */ +	n = (fmt == FS_FAT32) ? as : n_dir; +	while (n--) { +		if (disk_write(drv, tbl, b_fat++, 1) != RES_OK) +			return FR_DISK_ERR; +	} + +	/* 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_vol + 1, 1);	/* Original (VBR+1) */ +		disk_write(drv, tbl, b_vol + 7, 1);	/* Backup  (VBR+7) */ +	} + +	return (disk_ioctl(drv, CTRL_SYNC, (void*)0) == RES_OK) ? FR_OK : FR_DISK_ERR; +} + +#endif /* _USE_MKFS && !_FS_READONLY */ + + + + +#if _USE_STRFUNC +/*-----------------------------------------------------------------------*/ +/* Get a string from the file                                            */ +/*-----------------------------------------------------------------------*/ +TCHAR* f_gets ( +	TCHAR* buff,	/* Pointer to the string buffer to read */ +	int len,		/* Size of string buffer (characters) */ +	FIL* fil		/* Pointer to the file object */ +) +{ +	int n = 0; +	TCHAR c, *p = buff; +	BYTE s[2]; +	UINT rc; + + +	while (n < len - 1) {			/* Read bytes until buffer gets filled */ +		f_read(fil, s, 1, &rc); +		if (rc != 1) break;			/* Break on EOF or error */ +		c = s[0]; +#if _LFN_UNICODE					/* Read a character in UTF-8 encoding */ +		if (c >= 0x80) { +			if (c < 0xC0) continue;	/* Skip stray trailer */ +			if (c < 0xE0) {			/* Two-byte sequense */ +				f_read(fil, s, 1, &rc); +				if (rc != 1) break; +				c = ((c & 0x1F) << 6) | (s[0] & 0x3F); +				if (c < 0x80) c = '?'; +			} else { +				if (c < 0xF0) {		/* Three-byte sequense */ +					f_read(fil, s, 2, &rc); +					if (rc != 2) break; +					c = (c << 12) | ((s[0] & 0x3F) << 6) | (s[1] & 0x3F); +					if (c < 0x800) c = '?'; +				} else {			/* Reject four-byte sequense */ +					c = '?'; +				} +			} +		} +#endif +#if _USE_STRFUNC >= 2 +		if (c == '\r') continue;	/* Strip '\r' */ +#endif +		*p++ = c; +		n++; +		if (c == '\n') break;		/* Break on EOL */ +	} +	*p = 0; +	return n ? buff : 0;			/* When no data read (eof or error), return with error. */ +} + + + +#if !_FS_READONLY +#include <stdarg.h> +/*-----------------------------------------------------------------------*/ +/* Put a character to the file                                           */ +/*-----------------------------------------------------------------------*/ +int f_putc ( +	TCHAR c,	/* A character to be output */ +	FIL* fil	/* Pointer to the file object */ +) +{ +	UINT bw, btw; +	BYTE s[3]; + + +#if _USE_STRFUNC >= 2 +	if (c == '\n') f_putc ('\r', fil);	/* LF -> CRLF conversion */ +#endif + +#if _LFN_UNICODE	/* Write the character in UTF-8 encoding */ +	if (c < 0x80) {			/* 7-bit */ +		s[0] = (BYTE)c; +		btw = 1; +	} else { +		if (c < 0x800) {	/* 11-bit */ +			s[0] = (BYTE)(0xC0 | (c >> 6)); +			s[1] = (BYTE)(0x80 | (c & 0x3F)); +			btw = 2; +		} else {			/* 16-bit */ +			s[0] = (BYTE)(0xE0 | (c >> 12)); +			s[1] = (BYTE)(0x80 | ((c >> 6) & 0x3F)); +			s[2] = (BYTE)(0x80 | (c & 0x3F)); +			btw = 3; +		} +	} +#else				/* Write the character without conversion */ +	s[0] = (BYTE)c; +	btw = 1; +#endif +	f_write(fil, s, btw, &bw);		/* Write the char to the file */ +	return (bw == btw) ? 1 : EOF;	/* Return the result */ +} + + + + +/*-----------------------------------------------------------------------*/ +/* Put a string to the file                                              */ +/*-----------------------------------------------------------------------*/ +int f_puts ( +	const TCHAR* 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 TCHAR* str,	/* Pointer to the format string */ +	...					/* Optional arguments... */ +) +{ +	va_list arp; +	BYTE f, r; +	UINT i, w; +	ULONG val; +	TCHAR c, d, s[16]; +	int 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 character */ +			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 (IsDigit(c)) {		/* Precision */ +			w = w * 10 + c - '0'; +			c = *str++; +		} +		if (c == 'l' || c == 'L') {	/* Prefix: Size is long int */ +			f |= 2; c = *str++; +		} +		if (!c) break; +		d = c; +		if (IsLower(d)) d -= 0x20; +		switch (d) {				/* Type is... */ +		case 'S' :					/* String */ +			cc = f_puts(va_arg(arp, TCHAR*), fil); continue; +		case 'C' :					/* Character */ +			cc = f_putc((TCHAR)va_arg(arp, int), fil); continue; +		case 'B' :					/* Binary */ +			r = 2; break; +		case 'O' :					/* Octal */ +			r = 8; break; +		case 'D' :					/* Signed decimal */ +		case 'U' :					/* Unsigned decimal */ +			r = 10; break; +		case 'X' :					/* Hexdecimal */ +			r = 16; break; +		default:					/* Unknown */ +			cc = f_putc(c, fil); continue; +		} + +		/* Get an argument */ +		val = (f & 2) ? va_arg(arp, long) : ((d == 'D') ? (long)va_arg(arp, int) : va_arg(arp, unsigned int)); +		if (d == 'D' && (val & 0x80000000)) { +			val = 0 - val; +			f |= 4; +		} +		/* Put it in numeral string */ +		i = 0; +		do { +			d = (TCHAR)(val % r); val /= r; +			if (d > 9) { +				d += 7; +				if (c == 'x') d += 0x20; +			} +			s[i++] = d + '0'; +		} while (val && i < sizeof(s) / sizeof(s[0])); +		if (f & 4) s[i++] = '-'; +		cc = 0; +		while (i < w-- && cc != EOF) { +			cc = f_putc((TCHAR)((f & 1) ? '0' : ' '), fil); +			res++; +		} +		do { +			cc = f_putc(s[--i], fil);  +			res++; +		} while (i && cc != EOF); +		if (cc != EOF) cc = 0; +	} + +	va_end(arp); +	return (cc == EOF) ? cc : res; +} + +#endif /* !_FS_READONLY */ +#endif /* _USE_STRFUNC */ diff --git a/Projects/TempDataLogger/Lib/FATFs/ff.h b/Projects/TempDataLogger/Lib/FATFs/ff.h new file mode 100644 index 0000000000..d7397042c5 --- /dev/null +++ b/Projects/TempDataLogger/Lib/FATFs/ff.h @@ -0,0 +1,613 @@ +/*---------------------------------------------------------------------------/ +/  FatFs - FAT file system module include file  R0.08     (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	8085	/* Revision ID */ + +#ifdef __cplusplus +extern "C" { +#endif + +#include "integer.h"	/* Basic integer types */ +#include "ffconf.h"		/* FatFs configuration options */ + +#if _FATFS != _FFCONF +#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 + + + +/* Definitions corresponds to volume management */ + +#if _MULTI_PARTITION		/* Multiple partition configuration */ +#define LD2PD(drv) (Drives[drv].pd)	/* Get physical drive# */ +#define LD2PT(drv) (Drives[drv].pt)	/* Get partition# */ +typedef struct { +	BYTE pd;	/* Physical drive# */ +	BYTE pt;	/* Partition # (0-3) */ +} PARTITION; +extern const PARTITION Drives[];	/* Logical drive# to physical location conversion table */ + +#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 + + + +/* Type of path name strings on FatFs API */ + +#if _LFN_UNICODE			/* Unicode string */ +#if !_USE_LFN +#error _LFN_UNICODE must be 0 in non-LFN cfg. +#endif +#ifndef _INC_TCHAR +typedef WCHAR TCHAR; +#define _T(x) L ## x +#define _TEXT(x) L ## x +#endif + +#else						/* ANSI/OEM string */ +#ifndef _INC_TCHAR +typedef char TCHAR; +#define _T(x) x +#define _TEXT(x) x +#endif + +#endif + + + +/* Definitions corresponds to file shareing feature */ + +#if _FS_SHARE +#if _FS_READONLY +#error _FS_SHARE must be 0 on R/O cfg. +#endif +typedef struct { +	DWORD clu;				/* File ID 1, directory */ +	WORD idx;				/* File ID 2, index in the directory */ +	WORD ctr;				/* File open counter, 0:none, 0x01..0xFF:read open count, 0x100:in write open */ +} FILESEM; +#endif + + + +/* File system object structure (FATFS) */ + +typedef struct { +	BYTE	fs_type;		/* FAT sub-type (0:Not mounted) */ +	BYTE	drv;			/* Physical drive number */ +	BYTE	csize;			/* Sectors per cluster (1,2,4...128) */ +	BYTE	n_fats;			/* Number of FAT copies (1,2) */ +	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 (FAT12/16) */ +#if _MAX_SS != 512 +	WORD	ssize;			/* Bytes per sector (512,1024,2048,4096) */ +#endif +#if _FS_REENTRANT +	_SYNC_t	sobj;			/* Identifier of sync object */ +#endif +#if !_FS_READONLY +	DWORD	last_clust;		/* Last allocated cluster */ +	DWORD	free_clust;		/* Number of free clusters */ +	DWORD	fsi_sector;		/* fsinfo sector (FAT32) */ +#endif +#if _FS_RPATH +	DWORD	cdir;			/* Current directory start cluster (0:root) */ +#endif +	DWORD	n_fatent;		/* Number of FAT entries (= number of clusters + 2) */ +	DWORD	fsize;			/* Sectors per FAT */ +	DWORD	fatbase;		/* FAT start sector */ +	DWORD	dirbase;		/* Root directory start sector (FAT32:Cluster#) */ +	DWORD	database;		/* Data start sector */ +	DWORD	winsect;		/* Current sector appearing in the win[] */ +	BYTE	win[_MAX_SS];	/* Disk access window for Directory, FAT (and Data on tiny cfg) */ +#if _FS_SHARE +	FILESEM	flsem[_FS_SHARE];	/* File lock semaphores */ +#endif +} FATFS; + + + +/* File object structure (FIL) */ + +typedef struct { +	FATFS*	fs;				/* Pointer to the owner file system object */ +	WORD	id;				/* Owner file system mount ID */ +	BYTE	flag;			/* File status flags */ +	BYTE	pad1; +	DWORD	fptr;			/* File read/write pointer */ +	DWORD	fsize;			/* File size */ +	DWORD	org_clust;		/* File start cluster (0 when fsize==0) */ +	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 _USE_FASTSEEK +	DWORD*	cltbl;			/* Pointer to the cluster link map table */ +#endif +#if _FS_SHARE +	UINT	lockid;			/* File lock ID */ +#endif +#if !_FS_TINY +	BYTE	buf[_MAX_SS];	/* File data read/write buffer */ +#endif +} FIL; + + + +/* Directory object structure (DIR) */ + +typedef struct { +	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:Root dir) */ +	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 status structure (FILINFO) */ + +typedef struct { +	DWORD	fsize;			/* File size */ +	WORD	fdate;			/* Last modified date */ +	WORD	ftime;			/* Last modified time */ +	BYTE	fattrib;		/* Attribute */ +	TCHAR	fname[13];		/* Short file name (8.3 format) */ +#if _USE_LFN +	TCHAR*	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) Succeeded */ +	FR_DISK_ERR,			/* (1) A hard error occured in the low level disk I/O layer */ +	FR_INT_ERR,				/* (2) Assertion failed */ +	FR_NOT_READY,			/* (3) The physical drive cannot work */ +	FR_NO_FILE,				/* (4) Could not find the file */ +	FR_NO_PATH,				/* (5) Could not find the path */ +	FR_INVALID_NAME,		/* (6) The path name format is invalid */ +	FR_DENIED,				/* (7) Acces denied due to prohibited access or directory full */ +	FR_EXIST,				/* (8) Acces denied due to prohibited access */ +	FR_INVALID_OBJECT,		/* (9) The file/directory object is invalid */ +	FR_WRITE_PROTECTED,		/* (10) The physical drive is write protected */ +	FR_INVALID_DRIVE,		/* (11) The logical drive number is invalid */ +	FR_NOT_ENABLED,			/* (12) The volume has no work area */ +	FR_NO_FILESYSTEM,		/* (13) There is no valid FAT volume on the physical drive */ +	FR_MKFS_ABORTED,		/* (14) The f_mkfs() aborted due to any parameter error */ +	FR_TIMEOUT,				/* (15) Could not get a grant to access the volume within defined period */ +	FR_LOCKED,				/* (16) The operation is rejected according to the file shareing policy */ +	FR_NOT_ENOUGH_CORE,		/* (17) LFN working buffer could not be allocated */ +	FR_TOO_MANY_OPEN_FILES	/* (18) Number of open files > _FS_SHARE */ +} FRESULT; + + + +/*--------------------------------------------------------------*/ +/* FatFs module application interface                           */ + +FRESULT f_mount (BYTE, FATFS*);						/* Mount/Unmount a logical drive */ +FRESULT f_open (FIL*, const TCHAR*, BYTE);			/* Open or create a file */ +FRESULT f_read (FIL*, void*, UINT, UINT*);			/* Read data from 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 TCHAR*);				/* Open an existing directory */ +FRESULT f_readdir (DIR*, FILINFO*);					/* Read a directory item */ +FRESULT f_stat (const TCHAR*, FILINFO*);			/* Get file status */ +#if !_FS_READONLY +FRESULT f_write (FIL*, const void*, UINT, UINT*);	/* Write data to a file */ +FRESULT f_getfree (const TCHAR*, 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 TCHAR*);					/* Delete an existing file or directory */ +FRESULT	f_mkdir (const TCHAR*);						/* Create a new directory */ +FRESULT f_chmod (const TCHAR*, BYTE, BYTE);			/* Change attriburte of the file/dir */ +FRESULT f_utime (const TCHAR*, const FILINFO*);		/* Change timestamp of the file/dir */ +FRESULT f_rename (const TCHAR*, const TCHAR*);		/* Rename/Move a file or directory */ +#endif +#if _USE_FORWARD +FRESULT f_forward (FIL*, UINT(*)(const BYTE*,UINT), UINT, UINT*);	/* Forward data to the stream */ +#endif +#if _USE_MKFS +FRESULT f_mkfs (BYTE, BYTE, UINT);					/* Create a file system on the drive */ +#endif +#if _FS_RPATH +FRESULT f_chdir (const TCHAR*);						/* Change current directory */ +FRESULT f_chdrive (BYTE);							/* Change current drive */ +#endif +#if _USE_STRFUNC +int f_putc (TCHAR, FIL*);							/* Put a character to the file */ +int f_puts (const TCHAR*, FIL*);					/* Put a string to the file */ +int f_printf (FIL*, const TCHAR*, ...);				/* Put a formatted string to the file */ +TCHAR* f_gets (TCHAR*, 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 + + + +/*--------------------------------------------------------------*/ +/* Additional user defined functions                            */ + +/* RTC function */ +#if !_FS_READONLY +DWORD get_fattime (void); +#endif + +/* Unicode support functions */ +#if _USE_LFN						/* Unicode - OEM code conversion */ +WCHAR ff_convert (WCHAR, UINT);		/* OEM-Unicode bidirectional conversion */ +WCHAR ff_wtoupper (WCHAR);			/* Unicode upper-case conversion */ +#if _USE_LFN == 3					/* Memory functions */ +void* ff_memalloc (UINT);			/* Allocate memory block */ +void ff_memfree (void*);			/* Free memory block */ +#endif +#endif + +/* Sync functions */ +#if _FS_REENTRANT +int ff_cre_syncobj (BYTE, _SYNC_t*);/* Create a sync object */ +int ff_del_syncobj (_SYNC_t);		/* Delete a sync object */ +int ff_req_grant (_SYNC_t);			/* Lock sync object */ +void ff_rel_grant (_SYNC_t);		/* Unlock sync object */ +#endif + + + + +/*--------------------------------------------------------------*/ +/* Flags and offset address                                     */ + + +/* File access control and file status flags (FIL.flag) */ + +#define	FA_READ				0x01 +#define	FA_OPEN_EXISTING	0x00 +#define FA__ERROR			0x80 + +#if !_FS_READONLY +#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 + + +/* 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 */ + + +/* Fast seek function */ +#define CREATE_LINKMAP	0xFFFFFFFF + + +/* 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 + +#ifdef __cplusplus +} +#endif + +#endif /* _FATFS */ diff --git a/Projects/TempDataLogger/Lib/FATFs/ffconf.h b/Projects/TempDataLogger/Lib/FATFs/ffconf.h new file mode 100644 index 0000000000..cddced6cb1 --- /dev/null +++ b/Projects/TempDataLogger/Lib/FATFs/ffconf.h @@ -0,0 +1,181 @@ +/*---------------------------------------------------------------------------/ +/  FatFs - FAT file system module configuration file  R0.08  (C)ChaN, 2010 +/----------------------------------------------------------------------------/ +/ +/ CAUTION! Do not forget to make clean the project after any changes to +/ the configuration options. +/ +/----------------------------------------------------------------------------*/ +#ifndef _FFCONF +#define _FFCONF 8085	/* Revision ID */ + + +/*---------------------------------------------------------------------------/ +/ Function and Buffer Configurations +/----------------------------------------------------------------------------*/ + +#define	_FS_TINY	1		/* 0:Normal or 1:Tiny */ +/* 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:Read/Write or 1:Read only */ +/* 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:Disable or 1/2:Enable */ +/* To enable string functions, set _USE_STRFUNC to 1 or 2. */ + + +#define	_USE_MKFS	0		/* 0:Disable or 1:Enable */ +/* To enable f_mkfs function, set _USE_MKFS to 1 and set _FS_READONLY to 0 */ + + +#define	_USE_FORWARD	0	/* 0:Disable or 1:Enable */ +/* To enable f_forward function, set _USE_FORWARD to 1 and set _FS_TINY to 1. */ + + +#define	_USE_FASTSEEK	0	/* 0:Disable or 1:Enable */ +/* To enable fast seek feature, set _USE_FASTSEEK 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 to 3 */ +#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. +/   3: Enable LFN with dynamic working buffer on the HEAP. +/ +/  The LFN working buffer occupies (_MAX_LFN + 1) * 2 bytes. When enable LFN, +/  Unicode handling functions ff_convert() and ff_wtoupper() must be added +/  to the project. When enable to use heap, memory control functions +/  ff_memalloc() and ff_memfree() must be added to the project. */ + + +#define	_LFN_UNICODE	0	/* 0:ANSI/OEM or 1:Unicode */ +/* 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:Disable or 1:Enable */ +/* 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:Single parition or 1:Multiple partition */ +/* 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 */ +/* Set 0 first and it is always compatible with all platforms. The _WORD_ACCESS +/  option defines which access method is used to the word data on the FAT volume. +/ +/   0: Byte-by-byte access. +/   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:Disable or 1:Enable */ +#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.. */ +/* Include a header file here to define O/S system calls */ +/* #include <windows.h>, <ucos_ii.h.h>, <semphr.h> or ohters. */ + +/* 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. */ + + +#define	_FS_SHARE	0	/* 0:Disable or >=1:Enable */ +/* To enable file shareing feature, set _FS_SHARE to >= 1 and also user +   provided memory handlers, ff_memalloc and ff_memfree function must be +   added to the project. The value defines number of files can be opened +   per volume. */ + + +#endif /* _FFCONFIG */ diff --git a/Projects/TempDataLogger/Lib/FATFs/integer.h b/Projects/TempDataLogger/Lib/FATFs/integer.h new file mode 100644 index 0000000000..1bc381cc06 --- /dev/null +++ b/Projects/TempDataLogger/Lib/FATFs/integer.h @@ -0,0 +1,39 @@ +/*-------------------------------------------*/ +/* Integer type definitions for FatFs module */ +/*-------------------------------------------*/ + +#ifndef _INTEGER +#define _INTEGER + +#ifdef _WIN32	/* FatFs development platform */ + +#include <windows.h> +#include <tchar.h> + +#else			/* Embedded platform */ + +/* 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 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; + +typedef unsigned char   BOOL; + +#endif + +#endif diff --git a/Projects/TempDataLogger/Lib/SCSI.c b/Projects/TempDataLogger/Lib/SCSI.c new file mode 100644 index 0000000000..d499d9ac3f --- /dev/null +++ b/Projects/TempDataLogger/Lib/SCSI.c @@ -0,0 +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, sizeof(PadBytes), 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, sizeof(PadBytes), 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(*(uint16_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/TempDataLogger/Lib/SCSI.h b/Projects/TempDataLogger/Lib/SCSI.h new file mode 100644 index 0000000000..fd739182eb --- /dev/null +++ b/Projects/TempDataLogger/Lib/SCSI.h @@ -0,0 +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 <avr/io.h> +		#include <avr/pgmspace.h> + +		#include <LUFA/Drivers/USB/USB.h> +		#include <LUFA/Drivers/USB/Class/MassStorage.h> + +		#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 \ref SCSI_Command_ReadWrite_10() function, to indicate that data is to be read from the storage medium. */ +		#define DATA_READ           true + +		/** Macro for the \ref 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 | 
