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path: root/drivers/at45.c
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-rwxr-xr-xdrivers/at45.c334
1 files changed, 162 insertions, 172 deletions
diff --git a/drivers/at45.c b/drivers/at45.c
index 507ff36..f48d317 100755
--- a/drivers/at45.c
+++ b/drivers/at45.c
@@ -27,50 +27,49 @@
/*
* spi.c API
*/
-extern unsigned int AT91F_SpiWrite (AT91PS_DataflashDesc pDesc);
-extern void AT91F_SpiEnable(int cs);
+extern unsigned int AT91F_SpiWrite(AT91PS_DataflashDesc pDesc);
+extern void AT91F_SpiEnable(int cs);
#define AT91C_TIMEOUT_WRDY 200000
-
/*----------------------------------------------------------------------*/
/* \fn AT91F_DataFlashSendCommand */
/* \brief Generic function to send a command to the dataflash */
/*----------------------------------------------------------------------*/
-AT91S_DataFlashStatus AT91F_DataFlashSendCommand(
- AT91PS_DataFlash pDataFlash,
- unsigned char OpCode,
- unsigned int CmdSize,
- unsigned int DataflashAddress)
+AT91S_DataFlashStatus AT91F_DataFlashSendCommand(AT91PS_DataFlash pDataFlash,
+ unsigned char OpCode,
+ unsigned int CmdSize,
+ unsigned int DataflashAddress)
{
unsigned int adr;
- if ( (pDataFlash->pDataFlashDesc->state) != IDLE)
+ if ((pDataFlash->pDataFlashDesc->state) != IDLE)
return DATAFLASH_BUSY;
/* process the address to obtain page address and byte address */
adr = ((DataflashAddress / (pDataFlash->pDevice->pages_size)) <<
- pDataFlash->pDevice->page_offset) + (DataflashAddress %
- (pDataFlash->pDevice->pages_size));
+ pDataFlash->pDevice->page_offset) + (DataflashAddress %
+ (pDataFlash->pDevice->
+ pages_size));
/* fill the command buffer */
pDataFlash->pDataFlashDesc->command[0] = OpCode;
if (pDataFlash->pDevice->pages_number >= 16384) {
pDataFlash->pDataFlashDesc->command[1] =
- (unsigned char)((adr & 0x0F000000) >> 24);
+ (unsigned char)((adr & 0x0F000000) >> 24);
pDataFlash->pDataFlashDesc->command[2] =
- (unsigned char)((adr & 0x00FF0000) >> 16);
+ (unsigned char)((adr & 0x00FF0000) >> 16);
pDataFlash->pDataFlashDesc->command[3] =
- (unsigned char)((adr & 0x0000FF00) >> 8);
+ (unsigned char)((adr & 0x0000FF00) >> 8);
pDataFlash->pDataFlashDesc->command[4] =
- (unsigned char)(adr & 0x000000FF);
+ (unsigned char)(adr & 0x000000FF);
} else {
pDataFlash->pDataFlashDesc->command[1] =
- (unsigned char)((adr & 0x00FF0000) >> 16);
+ (unsigned char)((adr & 0x00FF0000) >> 16);
pDataFlash->pDataFlashDesc->command[2] =
- (unsigned char)((adr & 0x0000FF00) >> 8);
+ (unsigned char)((adr & 0x0000FF00) >> 8);
pDataFlash->pDataFlashDesc->command[3] =
- (unsigned char)(adr & 0x000000FF);
+ (unsigned char)(adr & 0x000000FF);
pDataFlash->pDataFlashDesc->command[4] = 0;
}
pDataFlash->pDataFlashDesc->command[5] = 0;
@@ -78,16 +77,16 @@ AT91S_DataFlashStatus AT91F_DataFlashSendCommand(
pDataFlash->pDataFlashDesc->command[7] = 0;
/* Initialize the SpiData structure for the spi write fuction */
- pDataFlash->pDataFlashDesc->tx_cmd_pt =
- pDataFlash->pDataFlashDesc->command;
- pDataFlash->pDataFlashDesc->tx_cmd_size = CmdSize;
- pDataFlash->pDataFlashDesc->rx_cmd_pt =
- pDataFlash->pDataFlashDesc->command;
- pDataFlash->pDataFlashDesc->rx_cmd_size = CmdSize;
+ pDataFlash->pDataFlashDesc->tx_cmd_pt =
+ pDataFlash->pDataFlashDesc->command;
+ pDataFlash->pDataFlashDesc->tx_cmd_size = CmdSize;
+ pDataFlash->pDataFlashDesc->rx_cmd_pt =
+ pDataFlash->pDataFlashDesc->command;
+ pDataFlash->pDataFlashDesc->rx_cmd_size = CmdSize;
/* send the command and read the data */
- return AT91F_SpiWrite (pDataFlash->pDataFlashDesc); }
-
+ return AT91F_SpiWrite(pDataFlash->pDataFlashDesc);
+}
/*----------------------------------------------------------------------*/
/* \fn AT91F_DataFlashGetStatus */
@@ -98,50 +97,49 @@ AT91S_DataFlashStatus AT91F_DataFlashGetStatus(AT91PS_DataflashDesc pDesc)
AT91S_DataFlashStatus status;
/* if a transfert is in progress ==> return 0 */
- if( (pDesc->state) != IDLE)
+ if ((pDesc->state) != IDLE)
return DATAFLASH_BUSY;
/* first send the read status command (D7H) */
pDesc->command[0] = DB_STATUS;
pDesc->command[1] = 0;
- pDesc->DataFlash_state = GET_STATUS;
- pDesc->tx_data_size = 0; /* Transmit the command */
- /* and receive response */
- pDesc->tx_cmd_pt = pDesc->command;
- pDesc->rx_cmd_pt = pDesc->command;
- pDesc->rx_cmd_size = 2;
- pDesc->tx_cmd_size = 2;
- status = AT91F_SpiWrite (pDesc);
+ pDesc->DataFlash_state = GET_STATUS;
+ pDesc->tx_data_size = 0; /* Transmit the command */
+ /* and receive response */
+ pDesc->tx_cmd_pt = pDesc->command;
+ pDesc->rx_cmd_pt = pDesc->command;
+ pDesc->rx_cmd_size = 2;
+ pDesc->tx_cmd_size = 2;
+ status = AT91F_SpiWrite(pDesc);
- pDesc->DataFlash_state = *( (unsigned char *) (pDesc->rx_cmd_pt) +1);
+ pDesc->DataFlash_state = *((unsigned char *)(pDesc->rx_cmd_pt) + 1);
return status;
}
-
/*----------------------------------------------------------------------*/
/* \fn AT91F_DataFlashWaitReady */
/* \brief wait for dataflash ready (bit7 of the status register == 1) */
/*----------------------------------------------------------------------*/
AT91S_DataFlashStatus AT91F_DataFlashWaitReady(AT91PS_DataflashDesc
-pDataFlashDesc, unsigned int timeout)
+ pDataFlashDesc,
+ unsigned int timeout)
{
pDataFlashDesc->DataFlash_state = IDLE;
do {
AT91F_DataFlashGetStatus(pDataFlashDesc);
timeout--;
- } while( ((pDataFlashDesc->DataFlash_state & 0x80) != 0x80) &&
- (timeout > 0) );
+ } while (((pDataFlashDesc->DataFlash_state & 0x80) != 0x80) &&
+ (timeout > 0));
- if((pDataFlashDesc->DataFlash_state & 0x80) != 0x80)
+ if ((pDataFlashDesc->DataFlash_state & 0x80) != 0x80)
return DATAFLASH_ERROR;
return DATAFLASH_OK;
}
-
/*--------------------------------------------------------------------------*/
/* Function Name : AT91F_DataFlashContinuousRead */
/* Object : Continuous stream Read */
@@ -151,17 +149,16 @@ pDataFlashDesc, unsigned int timeout)
/* : <sizeToRead> = data buffer size */
/* Return value : State of the dataflash */
/*--------------------------------------------------------------------------*/
-AT91S_DataFlashStatus AT91F_DataFlashContinuousRead (
- AT91PS_DataFlash pDataFlash,
- int src,
- unsigned char *dataBuffer,
- int sizeToRead )
+AT91S_DataFlashStatus AT91F_DataFlashContinuousRead(AT91PS_DataFlash pDataFlash,
+ int src,
+ unsigned char *dataBuffer,
+ int sizeToRead)
{
AT91S_DataFlashStatus status;
/* Test the size to read in the device */
- if ( (src + sizeToRead) >
- (pDataFlash->pDevice->pages_size *
- (pDataFlash->pDevice->pages_number)))
+ if ((src + sizeToRead) >
+ (pDataFlash->pDevice->pages_size *
+ (pDataFlash->pDevice->pages_number)))
return DATAFLASH_MEMORY_OVERFLOW;
pDataFlash->pDataFlashDesc->rx_data_pt = dataBuffer;
@@ -170,12 +167,11 @@ AT91S_DataFlashStatus AT91F_DataFlashContinuousRead (
pDataFlash->pDataFlashDesc->tx_data_size = sizeToRead;
status = AT91F_DataFlashSendCommand
- (pDataFlash, DB_CONTINUOUS_ARRAY_READ, 8, src);
+ (pDataFlash, DB_CONTINUOUS_ARRAY_READ, 8, src);
/* Send the command to the dataflash */
- return(status);
+ return (status);
}
-
/*---------------------------------------------------------------------------*/
/* Function Name : AT91F_DataFlashPagePgmBuf */
/* Object : Main memory page program thru buffer 1 or buffer 2 */
@@ -185,11 +181,10 @@ AT91S_DataFlashStatus AT91F_DataFlashContinuousRead (
/* : <SizeToWrite> = data buffer size */
/* Return value : State of the dataflash */
/*---------------------------------------------------------------------------*/
-AT91S_DataFlashStatus AT91F_DataFlashPagePgmBuf(
- AT91PS_DataFlash pDataFlash,
- unsigned char *src,
- unsigned int dest,
- unsigned int SizeToWrite)
+AT91S_DataFlashStatus AT91F_DataFlashPagePgmBuf(AT91PS_DataFlash pDataFlash,
+ unsigned char *src,
+ unsigned int dest,
+ unsigned int SizeToWrite)
{
int cmdsize;
pDataFlash->pDataFlashDesc->tx_data_pt = src;
@@ -201,9 +196,9 @@ AT91S_DataFlashStatus AT91F_DataFlashPagePgmBuf(
/* Send the command to the dataflash */
if (pDataFlash->pDevice->pages_number >= 16384)
cmdsize = 5;
- return(AT91F_DataFlashSendCommand (pDataFlash, DB_PAGE_PGM_BUF1,
-cmdsize, dest)); }
-
+ return (AT91F_DataFlashSendCommand(pDataFlash, DB_PAGE_PGM_BUF1,
+ cmdsize, dest));
+}
/*---------------------------------------------------------------------------*/
/* Function Name : AT91F_MainMemoryToBufferTransfert */
@@ -213,15 +208,16 @@ cmdsize, dest)); }
/* : */
/* Return value : State of the dataflash */
/*---------------------------------------------------------------------------*/
-AT91S_DataFlashStatus AT91F_MainMemoryToBufferTransfert(
- AT91PS_DataFlash pDataFlash,
- unsigned char BufferCommand,
- unsigned int page)
+AT91S_DataFlashStatus AT91F_MainMemoryToBufferTransfert(AT91PS_DataFlash
+ pDataFlash,
+ unsigned char
+ BufferCommand,
+ unsigned int page)
{
int cmdsize;
/* Test if the buffer command is legal */
if ((BufferCommand != DB_PAGE_2_BUF1_TRF)
- && (BufferCommand != DB_PAGE_2_BUF2_TRF))
+ && (BufferCommand != DB_PAGE_2_BUF2_TRF))
return DATAFLASH_BAD_COMMAND;
/* no data to transmit or receive */
@@ -229,11 +225,11 @@ AT91S_DataFlashStatus AT91F_MainMemoryToBufferTransfert(
cmdsize = 4;
if (pDataFlash->pDevice->pages_number >= 16384)
cmdsize = 5;
- return(AT91F_DataFlashSendCommand (pDataFlash, BufferCommand, cmdsize,
-page*pDataFlash->pDevice->pages_size));
+ return (AT91F_DataFlashSendCommand(pDataFlash, BufferCommand, cmdsize,
+ page *
+ pDataFlash->pDevice->pages_size));
}
-
/*-------------------------------------------------------------------------- */
/* Function Name : AT91F_DataFlashWriteBuffer */
/* Object : Write data to the internal sram buffer 1 or 2 */
@@ -244,58 +240,59 @@ page*pDataFlash->pDevice->pages_size));
/* : <SizeToWrite> = data buffer size */
/* Return value : State of the dataflash */
/*---------------------------------------------------------------------------*/
-AT91S_DataFlashStatus AT91F_DataFlashWriteBuffer (
- AT91PS_DataFlash pDataFlash,
- unsigned char BufferCommand,
- unsigned char *dataBuffer,
- unsigned int bufferAddress,
- int SizeToWrite )
+AT91S_DataFlashStatus AT91F_DataFlashWriteBuffer(AT91PS_DataFlash pDataFlash,
+ unsigned char BufferCommand,
+ unsigned char *dataBuffer,
+ unsigned int bufferAddress,
+ int SizeToWrite)
{
int cmdsize;
/* Test if the buffer command is legal */
if ((BufferCommand != DB_BUF1_WRITE)
- && (BufferCommand != DB_BUF2_WRITE))
+ && (BufferCommand != DB_BUF2_WRITE))
return DATAFLASH_BAD_COMMAND;
/* buffer address must be lower than page size */
if (bufferAddress > pDataFlash->pDevice->pages_size)
return DATAFLASH_BAD_ADDRESS;
- if ( (pDataFlash->pDataFlashDesc->state) != IDLE)
+ if ((pDataFlash->pDataFlashDesc->state) != IDLE)
return DATAFLASH_BUSY;
/* Send first Write Command */
pDataFlash->pDataFlashDesc->command[0] = BufferCommand;
pDataFlash->pDataFlashDesc->command[1] = 0;
if (pDataFlash->pDevice->pages_number >= 16384) {
- pDataFlash->pDataFlashDesc->command[2] = 0;
- pDataFlash->pDataFlashDesc->command[3] =
- (unsigned char)(((unsigned int)(bufferAddress &
- pDataFlash->pDevice->byte_mask)) >> 8);
- pDataFlash->pDataFlashDesc->command[4] =
- (unsigned char)((unsigned int)bufferAddress & 0x00FF);
+ pDataFlash->pDataFlashDesc->command[2] = 0;
+ pDataFlash->pDataFlashDesc->command[3] =
+ (unsigned char)(((unsigned int)(bufferAddress &
+ pDataFlash->pDevice->
+ byte_mask)) >> 8);
+ pDataFlash->pDataFlashDesc->command[4] =
+ (unsigned char)((unsigned int)bufferAddress & 0x00FF);
cmdsize = 5;
} else {
- pDataFlash->pDataFlashDesc->command[2] =
- (unsigned char)(((unsigned int)(bufferAddress &
- pDataFlash->pDevice->byte_mask)) >> 8);
- pDataFlash->pDataFlashDesc->command[3] =
- (unsigned char)((unsigned int)bufferAddress & 0x00FF);
- pDataFlash->pDataFlashDesc->command[4] = 0;
+ pDataFlash->pDataFlashDesc->command[2] =
+ (unsigned char)(((unsigned int)(bufferAddress &
+ pDataFlash->pDevice->
+ byte_mask)) >> 8);
+ pDataFlash->pDataFlashDesc->command[3] =
+ (unsigned char)((unsigned int)bufferAddress & 0x00FF);
+ pDataFlash->pDataFlashDesc->command[4] = 0;
cmdsize = 4;
}
- pDataFlash->pDataFlashDesc->tx_cmd_pt =
- pDataFlash->pDataFlashDesc->command;
+ pDataFlash->pDataFlashDesc->tx_cmd_pt =
+ pDataFlash->pDataFlashDesc->command;
pDataFlash->pDataFlashDesc->tx_cmd_size = cmdsize;
- pDataFlash->pDataFlashDesc->rx_cmd_pt =
- pDataFlash->pDataFlashDesc->command;
+ pDataFlash->pDataFlashDesc->rx_cmd_pt =
+ pDataFlash->pDataFlashDesc->command;
pDataFlash->pDataFlashDesc->rx_cmd_size = cmdsize;
- pDataFlash->pDataFlashDesc->rx_data_pt = dataBuffer;
- pDataFlash->pDataFlashDesc->tx_data_pt = dataBuffer;
- pDataFlash->pDataFlashDesc->rx_data_size = SizeToWrite;
- pDataFlash->pDataFlashDesc->tx_data_size = SizeToWrite;
+ pDataFlash->pDataFlashDesc->rx_data_pt = dataBuffer;
+ pDataFlash->pDataFlashDesc->tx_data_pt = dataBuffer;
+ pDataFlash->pDataFlashDesc->rx_data_size = SizeToWrite;
+ pDataFlash->pDataFlashDesc->tx_data_size = SizeToWrite;
return AT91F_SpiWrite(pDataFlash->pDataFlashDesc);
}
@@ -308,23 +305,22 @@ AT91S_DataFlashStatus AT91F_DataFlashWriteBuffer (
/* : */
/* Return value : State of the dataflash */
/*---------------------------------------------------------------------------*/
-AT91S_DataFlashStatus AT91F_PageErase(
- AT91PS_DataFlash pDataFlash,
- unsigned int page)
+AT91S_DataFlashStatus AT91F_PageErase(AT91PS_DataFlash pDataFlash,
+ unsigned int page)
{
int cmdsize;
/* Test if the buffer command is legal */
/* no data to transmit or receive */
- pDataFlash->pDataFlashDesc->tx_data_size = 0;
+ pDataFlash->pDataFlashDesc->tx_data_size = 0;
cmdsize = 4;
if (pDataFlash->pDevice->pages_number >= 16384)
cmdsize = 5;
- return(AT91F_DataFlashSendCommand (pDataFlash, DB_PAGE_ERASE, cmdsize,
-page*pDataFlash->pDevice->pages_size));
+ return (AT91F_DataFlashSendCommand(pDataFlash, DB_PAGE_ERASE, cmdsize,
+ page *
+ pDataFlash->pDevice->pages_size));
}
-
/*---------------------------------------------------------------------------*/
/* Function Name : AT91F_BlockErase */
/* Object : Erase a Block */
@@ -333,19 +329,19 @@ page*pDataFlash->pDevice->pages_size));
/* : */
/* Return value : State of the dataflash */
/*---------------------------------------------------------------------------*/
-AT91S_DataFlashStatus AT91F_BlockErase(
- AT91PS_DataFlash pDataFlash,
- unsigned int block)
+AT91S_DataFlashStatus AT91F_BlockErase(AT91PS_DataFlash pDataFlash,
+ unsigned int block)
{
int cmdsize;
/* Test if the buffer command is legal */
/* no data to transmit or receive */
- pDataFlash->pDataFlashDesc->tx_data_size = 0;
+ pDataFlash->pDataFlashDesc->tx_data_size = 0;
cmdsize = 4;
if (pDataFlash->pDevice->pages_number >= 16384)
cmdsize = 5;
- return(AT91F_DataFlashSendCommand (pDataFlash, DB_BLOCK_ERASE,cmdsize,
-block*8*pDataFlash->pDevice->pages_size));
+ return (AT91F_DataFlashSendCommand(pDataFlash, DB_BLOCK_ERASE, cmdsize,
+ block * 8 *
+ pDataFlash->pDevice->pages_size));
}
/*---------------------------------------------------------------------------*/
@@ -356,17 +352,16 @@ block*8*pDataFlash->pDevice->pages_size));
/* : <dest> = main memory address */
/* Return value : State of the dataflash */
/*---------------------------------------------------------------------------*/
-AT91S_DataFlashStatus AT91F_WriteBufferToMain (
- AT91PS_DataFlash pDataFlash,
- unsigned char BufferCommand,
- unsigned int dest )
+AT91S_DataFlashStatus AT91F_WriteBufferToMain(AT91PS_DataFlash pDataFlash,
+ unsigned char BufferCommand,
+ unsigned int dest)
{
int cmdsize;
/* Test if the buffer command is correct */
if ((BufferCommand != DB_BUF1_PAGE_PGM) &&
(BufferCommand != DB_BUF1_PAGE_ERASE_PGM) &&
(BufferCommand != DB_BUF2_PAGE_PGM) &&
- (BufferCommand != DB_BUF2_PAGE_ERASE_PGM) )
+ (BufferCommand != DB_BUF2_PAGE_ERASE_PGM))
return DATAFLASH_BAD_COMMAND;
/* no data to transmit or receive */
@@ -376,9 +371,9 @@ AT91S_DataFlashStatus AT91F_WriteBufferToMain (
if (pDataFlash->pDevice->pages_number >= 16384)
cmdsize = 5;
/* Send the command to the dataflash */
- return(AT91F_DataFlashSendCommand (pDataFlash, BufferCommand, cmdsize,
- dest)); }
-
+ return (AT91F_DataFlashSendCommand(pDataFlash, BufferCommand, cmdsize,
+ dest));
+}
/*---------------------------------------------------------------------------*/
/* Function Name : AT91F_PartialPageWrite */
@@ -387,11 +382,10 @@ AT91S_DataFlashStatus AT91F_WriteBufferToMain (
/* : <AdrInpage> = adr to begin the fading */
/* : <length> = Number of bytes to erase */
/*---------------------------------------------------------------------------*/
-AT91S_DataFlashStatus AT91F_PartialPageWrite (
- AT91PS_DataFlash pDataFlash,
- unsigned char *src,
- unsigned int dest,
- unsigned int size)
+AT91S_DataFlashStatus AT91F_PartialPageWrite(AT91PS_DataFlash pDataFlash,
+ unsigned char *src,
+ unsigned int dest,
+ unsigned int size)
{
unsigned int page;
unsigned int AdrInPage;
@@ -400,28 +394,28 @@ AT91S_DataFlashStatus AT91F_PartialPageWrite (
AdrInPage = dest % (pDataFlash->pDevice->pages_size);
/* Read the contents of the page in the Sram Buffer */
- AT91F_MainMemoryToBufferTransfert(pDataFlash,
- DB_PAGE_2_BUF1_TRF, page);
+ AT91F_MainMemoryToBufferTransfert(pDataFlash, DB_PAGE_2_BUF1_TRF, page);
AT91F_DataFlashWaitReady(pDataFlash->pDataFlashDesc,
- AT91C_TIMEOUT_WRDY);
+ AT91C_TIMEOUT_WRDY);
/*Update the SRAM buffer */
AT91F_DataFlashWriteBuffer(pDataFlash, DB_BUF1_WRITE, src,
- AdrInPage, size);
+ AdrInPage, size);
AT91F_DataFlashWaitReady(pDataFlash->pDataFlashDesc,
- AT91C_TIMEOUT_WRDY);
+ AT91C_TIMEOUT_WRDY);
/* Erase page if a 128 Mbits device */
if (pDataFlash->pDevice->pages_number >= 16384) {
AT91F_PageErase(pDataFlash, page);
/* Rewrite the modified Sram Buffer in the main memory */
AT91F_DataFlashWaitReady(pDataFlash->pDataFlashDesc,
- AT91C_TIMEOUT_WRDY);
+ AT91C_TIMEOUT_WRDY);
}
/* Rewrite the modified Sram Buffer in the main memory */
- return(AT91F_WriteBufferToMain(pDataFlash, DB_BUF1_PAGE_ERASE_PGM,
- (page*pDataFlash->pDevice->pages_size)));
+ return (AT91F_WriteBufferToMain(pDataFlash, DB_BUF1_PAGE_ERASE_PGM,
+ (page *
+ pDataFlash->pDevice->pages_size)));
}
/*---------------------------------------------------------------------------*/
@@ -431,11 +425,9 @@ AT91S_DataFlashStatus AT91F_PartialPageWrite (
/* : <dest> = dataflash adress */
/* : <size> = data buffer size */
/*---------------------------------------------------------------------------*/
-AT91S_DataFlashStatus AT91F_DataFlashWrite(
- AT91PS_DataFlash pDataFlash,
- unsigned char *src,
- int dest,
- int size )
+AT91S_DataFlashStatus AT91F_DataFlashWrite(AT91PS_DataFlash pDataFlash,
+ unsigned char *src,
+ int dest, int size)
{
unsigned int length;
unsigned int page;
@@ -443,26 +435,24 @@ AT91S_DataFlashStatus AT91F_DataFlashWrite(
AT91F_SpiEnable(pDataFlash->pDevice->cs);
- if ( (dest + size) > (pDataFlash->pDevice->pages_size *
- (pDataFlash->pDevice->pages_number)))
+ if ((dest + size) > (pDataFlash->pDevice->pages_size *
+ (pDataFlash->pDevice->pages_number)))
return DATAFLASH_MEMORY_OVERFLOW;
/* If destination does not fit a page start address */
- if ((dest % ((unsigned int)(pDataFlash->pDevice->pages_size))) != 0 )
- {
+ if ((dest % ((unsigned int)(pDataFlash->pDevice->pages_size))) != 0) {
length = pDataFlash->pDevice->pages_size -
- (dest %
- ((unsigned int)
- (pDataFlash->pDevice->pages_size)));
+ (dest % ((unsigned int)
+ (pDataFlash->pDevice->pages_size)));
if (size < length)
length = size;
- if(!AT91F_PartialPageWrite(pDataFlash,src, dest, length))
+ if (!AT91F_PartialPageWrite(pDataFlash, src, dest, length))
return DATAFLASH_ERROR;
AT91F_DataFlashWaitReady(pDataFlash->pDataFlashDesc,
- AT91C_TIMEOUT_WRDY);
+ AT91C_TIMEOUT_WRDY);
/* Update size, source and destination pointers */
size -= length;
@@ -470,78 +460,77 @@ AT91S_DataFlashStatus AT91F_DataFlashWrite(
src += length;
}
- while (( size - pDataFlash->pDevice->pages_size ) >= 0 ) {
+ while ((size - pDataFlash->pDevice->pages_size) >= 0) {
/* program dataflash page */
page = (unsigned int)dest / (pDataFlash->pDevice->pages_size);
status = AT91F_DataFlashWriteBuffer(pDataFlash,
- DB_BUF1_WRITE, src, 0,
- pDataFlash->pDevice->pages_size);
+ DB_BUF1_WRITE, src, 0,
+ pDataFlash->pDevice->
+ pages_size);
AT91F_DataFlashWaitReady(pDataFlash->pDataFlashDesc,
- AT91C_TIMEOUT_WRDY);
+ AT91C_TIMEOUT_WRDY);
status = AT91F_PageErase(pDataFlash, page);
AT91F_DataFlashWaitReady(pDataFlash->pDataFlashDesc,
- AT91C_TIMEOUT_WRDY);
+ AT91C_TIMEOUT_WRDY);
if (!status)
return DATAFLASH_ERROR;
- status = AT91F_WriteBufferToMain (pDataFlash,
- DB_BUF1_PAGE_PGM, dest);
- if(!status)
+ status = AT91F_WriteBufferToMain(pDataFlash,
+ DB_BUF1_PAGE_PGM, dest);
+ if (!status)
return DATAFLASH_ERROR;
AT91F_DataFlashWaitReady(pDataFlash->pDataFlashDesc,
- AT91C_TIMEOUT_WRDY);
+ AT91C_TIMEOUT_WRDY);
/* Update size, source and destination pointers */
size -= pDataFlash->pDevice->pages_size;
dest += pDataFlash->pDevice->pages_size;
- src += pDataFlash->pDevice->pages_size;
+ src += pDataFlash->pDevice->pages_size;
}
/* If still some bytes to read */
- if ( size > 0 ) {
+ if (size > 0) {
/* program dataflash page */
- if(!AT91F_PartialPageWrite(pDataFlash, src, dest, size) )
+ if (!AT91F_PartialPageWrite(pDataFlash, src, dest, size))
return DATAFLASH_ERROR;
AT91F_DataFlashWaitReady(pDataFlash->pDataFlashDesc,
- AT91C_TIMEOUT_WRDY);
+ AT91C_TIMEOUT_WRDY);
}
return DATAFLASH_OK;
}
-
/*---------------------------------------------------------------------------*/
/* Function Name : AT91F_DataFlashRead */
/* Object : Read a block in dataflash */
/* Input Parameters : */
/* Return value : */
/*---------------------------------------------------------------------------*/
-int AT91F_DataFlashRead(
- AT91PS_DataFlash pDataFlash,
- unsigned long addr,
- unsigned long size,
- char *buffer)
+int AT91F_DataFlashRead(AT91PS_DataFlash pDataFlash,
+ unsigned long addr, unsigned long size, char *buffer)
{
unsigned long SizeToRead;
AT91F_SpiEnable(pDataFlash->pDevice->cs);
- if(AT91F_DataFlashWaitReady(pDataFlash->pDataFlashDesc,
- AT91C_TIMEOUT_WRDY) != DATAFLASH_OK)
+ if (AT91F_DataFlashWaitReady(pDataFlash->pDataFlashDesc,
+ AT91C_TIMEOUT_WRDY) != DATAFLASH_OK)
return -1;
while (size) {
- SizeToRead = (size < 0x8000)? size:0x8000;
+ SizeToRead = (size < 0x8000) ? size : 0x8000;
if (AT91F_DataFlashWaitReady(pDataFlash->pDataFlashDesc,
- AT91C_TIMEOUT_WRDY) != DATAFLASH_OK)
+ AT91C_TIMEOUT_WRDY) !=
+ DATAFLASH_OK)
return -1;
- if (AT91F_DataFlashContinuousRead (pDataFlash, addr,
- (uchar *) buffer, SizeToRead) != DATAFLASH_OK)
+ if (AT91F_DataFlashContinuousRead(pDataFlash, addr,
+ (uchar *) buffer,
+ SizeToRead) != DATAFLASH_OK)
return -1;
size -= SizeToRead;
@@ -558,9 +547,10 @@ int AT91F_DataFlashRead(
/* Input Parameters : */
/* Return value : Dataflash status register */
/*---------------------------------------------------------------------------*/
-int AT91F_DataflashProbe(int cs, AT91PS_DataflashDesc pDesc) {
+int AT91F_DataflashProbe(int cs, AT91PS_DataflashDesc pDesc)
+{
AT91F_SpiEnable(cs);
AT91F_DataFlashGetStatus(pDesc);
- return((pDesc->command[1] == 0xFF)? 0: pDesc->command[1] & 0x3C);
+ return ((pDesc->command[1] == 0xFF) ? 0 : pDesc->command[1] & 0x3C);
}
#endif
generated by cgit v1.1 at 2024-11-28 01:26:12 +0000