X-Git-Url: http://git.linex4red.de/pub/USBasp.git/blobdiff_plain/28401f7bb749350a66ebe95649d01a25c01842f7..a9abe1fdea5ccf67aaccab6fdde300d6fcf2d15a:/Demos/Device/LowLevel/MassStorage/Lib/DataflashManager.c?ds=inline diff --git a/Demos/Device/LowLevel/MassStorage/Lib/DataflashManager.c b/Demos/Device/LowLevel/MassStorage/Lib/DataflashManager.c index e32618258..90b4bdb3d 100644 --- a/Demos/Device/LowLevel/MassStorage/Lib/DataflashManager.c +++ b/Demos/Device/LowLevel/MassStorage/Lib/DataflashManager.c @@ -1,21 +1,21 @@ /* LUFA Library - Copyright (C) Dean Camera, 2010. - + Copyright (C) Dean Camera, 2012. + dean [at] fourwalledcubicle [dot] com - www.fourwalledcubicle.com + www.lufa-lib.org */ /* - Copyright 2010 Dean Camera (dean [at] fourwalledcubicle [dot] com) + Copyright 2012 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 @@ -71,11 +71,11 @@ void DataflashManager_WriteBlocks(const uint32_t BlockAddress, /* 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)) { @@ -84,7 +84,7 @@ void DataflashManager_WriteBlocks(const uint32_t BlockAddress, { /* Clear the current endpoint bank */ Endpoint_ClearOUT(); - + /* Wait until the host has sent another packet */ if (Endpoint_WaitUntilReady()) return; @@ -123,27 +123,27 @@ void DataflashManager_WriteBlocks(const uint32_t BlockAddress, /* 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++; @@ -152,10 +152,10 @@ void DataflashManager_WriteBlocks(const uint32_t BlockAddress, /* Check if the current command is being aborted by the host */ if (IsMassStoreReset) - return; + return; } - - /* Decrement the blocks remaining counter and reset the sub block counter */ + + /* Decrement the blocks remaining counter */ TotalBlocks--; } @@ -197,15 +197,15 @@ void DataflashManager_ReadBlocks(const uint32_t BlockAddress, 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)) { @@ -214,12 +214,12 @@ void DataflashManager_ReadBlocks(const uint32_t BlockAddress, { /* 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)) { @@ -229,7 +229,7 @@ void DataflashManager_ReadBlocks(const uint32_t BlockAddress, /* 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); @@ -237,29 +237,29 @@ void DataflashManager_ReadBlocks(const uint32_t BlockAddress, 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++; @@ -267,11 +267,11 @@ void DataflashManager_ReadBlocks(const uint32_t BlockAddress, if (IsMassStoreReset) return; } - + /* Decrement the blocks remaining counter */ TotalBlocks--; } - + /* If the endpoint is full, send its contents to the host */ if (!(Endpoint_IsReadWriteAllowed())) Endpoint_ClearIN(); @@ -281,7 +281,7 @@ void DataflashManager_ReadBlocks(const uint32_t BlockAddress, } /** 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. * @@ -315,7 +315,7 @@ void DataflashManager_WriteBlocks_RAM(const uint32_t BlockAddress, while (TotalBlocks) { uint8_t BytesInBlockDiv16 = 0; - + /* Write an endpoint packet sized data block to the Dataflash */ while (BytesInBlockDiv16 < (VIRTUAL_MEMORY_BLOCK_SIZE >> 4)) { @@ -352,22 +352,22 @@ void DataflashManager_WriteBlocks_RAM(const uint32_t BlockAddress, /* 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--; } @@ -382,7 +382,7 @@ void DataflashManager_WriteBlocks_RAM(const uint32_t BlockAddress, } /** 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. * @@ -412,7 +412,7 @@ void DataflashManager_ReadBlocks_RAM(const uint32_t BlockAddress, while (TotalBlocks) { uint8_t BytesInBlockDiv16 = 0; - + /* Write an endpoint packet sized data block to the Dataflash */ while (BytesInBlockDiv16 < (VIRTUAL_MEMORY_BLOCK_SIZE >> 4)) { @@ -425,7 +425,7 @@ void DataflashManager_ReadBlocks_RAM(const uint32_t BlockAddress, /* 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); @@ -433,19 +433,19 @@ void DataflashManager_ReadBlocks_RAM(const uint32_t BlockAddress, 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--; } @@ -460,7 +460,7 @@ 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) { @@ -472,12 +472,12 @@ void DataflashManager_ResetDataflashProtections(void) 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) { @@ -490,7 +490,7 @@ void DataflashManager_ResetDataflashProtections(void) Dataflash_SendByte(DF_CMD_SECTORPROTECTIONOFF[3]); } #endif - + /* Deselect current Dataflash chip */ Dataflash_DeselectChip(); } @@ -524,6 +524,7 @@ bool DataflashManager_CheckDataflashOperation(void) if (ReturnByte != DF_MANUFACTURER_ATMEL) return false; #endif - + return true; } +