/*
LUFA Library
- Copyright (C) Dean Camera, 2010.
-
+ Copyright (C) Dean Camera, 2011.
+
dean [at] fourwalledcubicle [dot] com
- www.fourwalledcubicle.com
+ www.lufa-lib.org
*/
/*
- Copyright 2010 Dean Camera (dean [at] fourwalledcubicle [dot] com)
+ Copyright 2011 Dean Camera (dean [at] fourwalledcubicle [dot] com)
- Permission to use, copy, modify, distribute, and sell this
+ 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
+ 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
+ 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
/** \file
*
- * Functions to manage the physical dataflash media, including reading and writing of
+ * 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
+/** 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.
+ * 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
Dataflash_SelectChipFromPage(CurrDFPage);
#if (DATAFLASH_PAGE_SIZE > VIRTUAL_MEMORY_BLOCK_SIZE)
- /* Copy selected dataflash's current page contents to the dataflash buffer */
+ /* 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 */
+ /* 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 */
+
+ /* Write an endpoint packet sized data block to the Dataflash */
while (BytesInBlockDiv16 < (VIRTUAL_MEMORY_BLOCK_SIZE >> 4))
{
/* Check if the endpoint is currently empty */
{
/* 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 */
+ /* Check if end of Dataflash page reached */
if (CurrDFPageByteDiv16 == (DATAFLASH_PAGE_SIZE >> 4))
{
- /* Write the dataflash buffer contents back to the dataflash page */
+ /* 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 */
+ /* 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 */
+ /* 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 */
+ /* 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 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 */
+ /* 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);
}
#endif
- /* Send the dataflash buffer write command */
+ /* Send the Dataflash buffer write command */
Dataflash_SendByte(UsingSecondBuffer ? DF_CMD_BUFF2WRITE : DF_CMD_BUFF1WRITE);
- Dataflash_SendAddressBytes(0, 0);
+ Dataflash_SendAddressBytes(0, 0);
}
- /* Write one 16-byte chunk of data to the dataflash */
+ /* 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());
-
- /* Increment the dataflash page 16 byte block counter */
+
+ /* Increment the Dataflash page 16 byte block counter */
CurrDFPageByteDiv16++;
/* Increment the block 16 byte block counter */
/* Check if the current command is being aborted by the host */
if (MSInterfaceInfo->State.IsMassStoreReset)
- return;
+ return;
}
-
+
/* Decrement the blocks remaining counter and reset the sub block counter */
TotalBlocks--;
}
- /* Write the dataflash buffer contents back to the dataflash page */
+ /* 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);
if (!(Endpoint_IsReadWriteAllowed()))
Endpoint_ClearOUT();
- /* Deselect all dataflash chips */
+ /* Deselect all Dataflash chips */
Dataflash_DeselectChip();
}
-/** Reads blocks (OS blocks, not Dataflash pages) from the storage medium, the board dataflash IC(s), into
+/** 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.
*
/* Select the correct starting Dataflash IC for the block requested */
Dataflash_SelectChipFromPage(CurrDFPage);
- /* Send the dataflash main memory page read command */
+ /* 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 */
+
+ /* Write an endpoint packet sized data block to the Dataflash */
while (BytesInBlockDiv16 < (VIRTUAL_MEMORY_BLOCK_SIZE >> 4))
{
/* Check if the endpoint is currently full */
{
/* 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 */
+
+ /* Check if end of Dataflash page reached */
if (CurrDFPageByteDiv16 == (DATAFLASH_PAGE_SIZE >> 4))
{
- /* Reset the dataflash buffer counter, increment the page counter */
+ /* Reset the Dataflash buffer counter, increment the page counter */
CurrDFPageByteDiv16 = 0;
CurrDFPage++;
- /* Select the next dataflash chip based on the new dataflash page index */
+ /* Select the next Dataflash chip based on the new Dataflash page index */
Dataflash_SelectChipFromPage(CurrDFPage);
-
- /* Send the dataflash main memory page read command */
+
+ /* 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 */
+ /* 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());
-
- /* Increment the dataflash page 16 byte block counter */
+
+ /* Increment the Dataflash page 16 byte block counter */
CurrDFPageByteDiv16++;
-
+
/* Increment the block 16 byte block counter */
BytesInBlockDiv16++;
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 */
+ /* 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.
+/** Writes blocks (OS blocks, not Dataflash pages) to the storage medium, the board Dataflash IC(s), from
+ * the 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
Dataflash_SelectChipFromPage(CurrDFPage);
#if (DATAFLASH_PAGE_SIZE > VIRTUAL_MEMORY_BLOCK_SIZE)
- /* Copy selected dataflash's current page contents to the dataflash buffer */
+ /* 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 */
+ /* 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 */
+
+ /* Write an endpoint packet sized data block to the Dataflash */
while (BytesInBlockDiv16 < (VIRTUAL_MEMORY_BLOCK_SIZE >> 4))
{
- /* Check if end of dataflash page reached */
+ /* Check if end of Dataflash page reached */
if (CurrDFPageByteDiv16 == (DATAFLASH_PAGE_SIZE >> 4))
{
- /* Write the dataflash buffer contents back to the dataflash page */
+ /* 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 */
+ /* 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 */
+ /* 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 */
+ /* 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 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 */
+ /* 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);
}
#endif
- /* Send the dataflash buffer write command */
+ /* 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 */
+
+ /* 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 */
+
+ /* Increment the Dataflash page 16 byte block counter */
CurrDFPageByteDiv16++;
/* Increment the block 16 byte block counter */
- BytesInBlockDiv16++;
+ BytesInBlockDiv16++;
}
-
+
/* Decrement the blocks remaining counter and reset the sub block counter */
TotalBlocks--;
}
- /* Write the dataflash buffer contents back to the dataflash page */
+ /* 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 */
+ /* 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
+/** Reads blocks (OS blocks, not Dataflash pages) from the storage medium, the board Dataflash IC(s), into
+ * the 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.
+ * 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
/* Select the correct starting Dataflash IC for the block requested */
Dataflash_SelectChipFromPage(CurrDFPage);
- /* Send the dataflash main memory page read command */
+ /* Send the Dataflash main memory page read command */
Dataflash_SendByte(DF_CMD_MAINMEMPAGEREAD);
Dataflash_SendAddressBytes(CurrDFPage, CurrDFPageByte);
Dataflash_SendByte(0x00);
while (TotalBlocks)
{
uint8_t BytesInBlockDiv16 = 0;
-
- /* Write an endpoint packet sized data block to the dataflash */
+
+ /* Write an endpoint packet sized data block to the Dataflash */
while (BytesInBlockDiv16 < (VIRTUAL_MEMORY_BLOCK_SIZE >> 4))
{
- /* Check if end of dataflash page reached */
+ /* Check if end of Dataflash page reached */
if (CurrDFPageByteDiv16 == (DATAFLASH_PAGE_SIZE >> 4))
{
- /* Reset the dataflash buffer counter, increment the page counter */
+ /* Reset the Dataflash buffer counter, increment the page counter */
CurrDFPageByteDiv16 = 0;
CurrDFPage++;
- /* Select the next dataflash chip based on the new dataflash page index */
+ /* Select the next Dataflash chip based on the new Dataflash page index */
Dataflash_SelectChipFromPage(CurrDFPage);
-
- /* Send the dataflash main memory page read command */
+
+ /* 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 */
+ /* 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 */
+
+ /* 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 */
+ /* Deselect all Dataflash chips */
Dataflash_DeselectChip();
}
-/** Disables the dataflash memory write protection bits on the board Dataflash ICs, if enabled. */
+/** 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 */
+ /* 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_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 */
+
+ /* 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_SendByte(DF_CMD_SECTORPROTECTIONOFF[3]);
}
#endif
-
- /* Deselect current dataflash chip */
+
+ /* Deselect current Dataflash chip */
Dataflash_DeselectChip();
}
if (ReturnByte != DF_MANUFACTURER_ATMEL)
return false;
#endif
-
+
return true;
}
+
projects / pub / USBasp.git / blobdiff