/*
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
while (TotalBlocks)
{
uint8_t BytesInBlockDiv16 = 0;
-
+
/* Write an endpoint packet sized data block to the Dataflash */
while (BytesInBlockDiv16 < (VIRTUAL_MEMORY_BLOCK_SIZE >> 4))
{
{
/* Clear the current endpoint bank */
Endpoint_ClearOUT();
-
+
/* Wait until the host has sent another packet */
if (Endpoint_WaitUntilReady())
return;
/* 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 */
- 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());
-
+ Dataflash_SendByte(Endpoint_Read_8());
+ Dataflash_SendByte(Endpoint_Read_8());
+ Dataflash_SendByte(Endpoint_Read_8());
+ Dataflash_SendByte(Endpoint_Read_8());
+ Dataflash_SendByte(Endpoint_Read_8());
+ Dataflash_SendByte(Endpoint_Read_8());
+ Dataflash_SendByte(Endpoint_Read_8());
+ Dataflash_SendByte(Endpoint_Read_8());
+ Dataflash_SendByte(Endpoint_Read_8());
+ Dataflash_SendByte(Endpoint_Read_8());
+ Dataflash_SendByte(Endpoint_Read_8());
+ Dataflash_SendByte(Endpoint_Read_8());
+ Dataflash_SendByte(Endpoint_Read_8());
+ Dataflash_SendByte(Endpoint_Read_8());
+ Dataflash_SendByte(Endpoint_Read_8());
+ Dataflash_SendByte(Endpoint_Read_8());
+
/* Increment the Dataflash page 16 byte block counter */
CurrDFPageByteDiv16++;
/* 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 */
+
+ /* Decrement the blocks remaining counter */
TotalBlocks--;
}
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))
{
{
/* 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))
{
/* 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);
- }
+ }
/* 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());
-
+ Endpoint_Write_8(Dataflash_ReceiveByte());
+ Endpoint_Write_8(Dataflash_ReceiveByte());
+ Endpoint_Write_8(Dataflash_ReceiveByte());
+ Endpoint_Write_8(Dataflash_ReceiveByte());
+ Endpoint_Write_8(Dataflash_ReceiveByte());
+ Endpoint_Write_8(Dataflash_ReceiveByte());
+ Endpoint_Write_8(Dataflash_ReceiveByte());
+ Endpoint_Write_8(Dataflash_ReceiveByte());
+ Endpoint_Write_8(Dataflash_ReceiveByte());
+ Endpoint_Write_8(Dataflash_ReceiveByte());
+ Endpoint_Write_8(Dataflash_ReceiveByte());
+ Endpoint_Write_8(Dataflash_ReceiveByte());
+ Endpoint_Write_8(Dataflash_ReceiveByte());
+ Endpoint_Write_8(Dataflash_ReceiveByte());
+ Endpoint_Write_8(Dataflash_ReceiveByte());
+ Endpoint_Write_8(Dataflash_ReceiveByte());
+
/* 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();
}
/** 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
+ * 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.
*
/* 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))
{
/* Send the Dataflash buffer write command */
Dataflash_ToggleSelectedChipCS();
- Dataflash_SendByte(DF_CMD_BUFF1WRITE);
+ Dataflash_SendByte(UsingSecondBuffer ? DF_CMD_BUFF2WRITE : 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++;
+ BytesInBlockDiv16++;
}
-
- /* Decrement the blocks remaining counter and reset the sub block counter */
+
+ /* Decrement the blocks remaining counter */
TotalBlocks--;
}
}
/** 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
+ * 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.
*
while (TotalBlocks)
{
uint8_t BytesInBlockDiv16 = 0;
-
+
/* Write an endpoint packet sized data block to the Dataflash */
while (BytesInBlockDiv16 < (VIRTUAL_MEMORY_BLOCK_SIZE >> 4))
{
/* 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);
- }
+ }
/* 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--;
}
/* 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 */
#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 */
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;
+}
+
projects / pub / USBasp.git / blobdiff