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path: root/drivers/at45.c
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Diffstat (limited to 'drivers/at45.c')
-rw-r--r--[-rwxr-xr-x]drivers/at45.c180
1 files changed, 92 insertions, 88 deletions
diff --git a/drivers/at45.c b/drivers/at45.c
index f48d317..a075ebd 100755..100644
--- a/drivers/at45.c
+++ b/drivers/at45.c
@@ -48,28 +48,27 @@ AT91S_DataFlashStatus AT91F_DataFlashSendCommand(AT91PS_DataFlash pDataFlash,
/* 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 */
+ /* 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;
@@ -78,10 +77,10 @@ AT91S_DataFlashStatus AT91F_DataFlashSendCommand(AT91PS_DataFlash pDataFlash,
/* Initialize the SpiData structure for the spi write fuction */
pDataFlash->pDataFlashDesc->tx_cmd_pt =
- pDataFlash->pDataFlashDesc->command;
+ pDataFlash->pDataFlashDesc->command;
pDataFlash->pDataFlashDesc->tx_cmd_size = CmdSize;
pDataFlash->pDataFlashDesc->rx_cmd_pt =
- pDataFlash->pDataFlashDesc->command;
+ pDataFlash->pDataFlashDesc->command;
pDataFlash->pDataFlashDesc->rx_cmd_size = CmdSize;
/* send the command and read the data */
@@ -123,8 +122,8 @@ AT91S_DataFlashStatus AT91F_DataFlashGetStatus(AT91PS_DataflashDesc pDesc)
/* \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;
@@ -149,16 +148,17 @@ AT91S_DataFlashStatus AT91F_DataFlashWaitReady(AT91PS_DataflashDesc
/* : <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)))
+ (pDataFlash->pDevice->pages_size *
+ (pDataFlash->pDevice->pages_number)))
return DATAFLASH_MEMORY_OVERFLOW;
pDataFlash->pDataFlashDesc->rx_data_pt = dataBuffer;
@@ -166,8 +166,8 @@ AT91S_DataFlashStatus AT91F_DataFlashContinuousRead(AT91PS_DataFlash pDataFlash,
pDataFlash->pDataFlashDesc->tx_data_pt = dataBuffer;
pDataFlash->pDataFlashDesc->tx_data_size = sizeToRead;
- status = AT91F_DataFlashSendCommand
- (pDataFlash, DB_CONTINUOUS_ARRAY_READ, 8, src);
+ status = AT91F_DataFlashSendCommand(
+ pDataFlash, DB_CONTINUOUS_ARRAY_READ, 8, src);
/* Send the command to the dataflash */
return (status);
}
@@ -196,8 +196,8 @@ AT91S_DataFlashStatus AT91F_DataFlashPagePgmBuf(AT91PS_DataFlash pDataFlash,
/* 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));
}
/*---------------------------------------------------------------------------*/
@@ -208,16 +208,17 @@ AT91S_DataFlashStatus AT91F_DataFlashPagePgmBuf(AT91PS_DataFlash pDataFlash,
/* : */
/* 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))
+ if ((BufferCommand != DB_PAGE_2_BUF1_TRF)&&
+ (BufferCommand != DB_PAGE_2_BUF2_TRF))
return DATAFLASH_BAD_COMMAND;
/* no data to transmit or receive */
@@ -225,9 +226,9 @@ AT91S_DataFlashStatus AT91F_MainMemoryToBufferTransfert(AT91PS_DataFlash
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));
}
/*-------------------------------------------------------------------------- */
@@ -240,16 +241,17 @@ AT91S_DataFlashStatus AT91F_MainMemoryToBufferTransfert(AT91PS_DataFlash
/* : <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))
+ if ((BufferCommand != DB_BUF1_WRITE) &&
+ (BufferCommand != DB_BUF2_WRITE))
return DATAFLASH_BAD_COMMAND;
/* buffer address must be lower than page size */
@@ -265,28 +267,28 @@ AT91S_DataFlashStatus AT91F_DataFlashWriteBuffer(AT91PS_DataFlash pDataFlash,
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);
+ (unsigned char)(((unsigned int)(bufferAddress &
+ pDataFlash->pDevice->
+ byte_mask)) >> 8);
pDataFlash->pDataFlashDesc->command[4] =
- (unsigned char)((unsigned int)bufferAddress & 0x00FF);
+ (unsigned char)((unsigned int)bufferAddress & 0x00FF);
cmdsize = 5;
} else {
pDataFlash->pDataFlashDesc->command[2] =
- (unsigned char)(((unsigned int)(bufferAddress &
- pDataFlash->pDevice->
- byte_mask)) >> 8);
+ (unsigned char)(((unsigned int)(bufferAddress &
+ pDataFlash->pDevice->
+ byte_mask)) >> 8);
pDataFlash->pDataFlashDesc->command[3] =
- (unsigned char)((unsigned int)bufferAddress & 0x00FF);
+ (unsigned char)((unsigned int)bufferAddress & 0x00FF);
pDataFlash->pDataFlashDesc->command[4] = 0;
cmdsize = 4;
}
pDataFlash->pDataFlashDesc->tx_cmd_pt =
- pDataFlash->pDataFlashDesc->command;
+ pDataFlash->pDataFlashDesc->command;
pDataFlash->pDataFlashDesc->tx_cmd_size = cmdsize;
pDataFlash->pDataFlashDesc->rx_cmd_pt =
- pDataFlash->pDataFlashDesc->command;
+ pDataFlash->pDataFlashDesc->command;
pDataFlash->pDataFlashDesc->rx_cmd_size = cmdsize;
pDataFlash->pDataFlashDesc->rx_data_pt = dataBuffer;
@@ -305,8 +307,9 @@ AT91S_DataFlashStatus AT91F_DataFlashWriteBuffer(AT91PS_DataFlash pDataFlash,
/* : */
/* 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 */
@@ -316,9 +319,9 @@ AT91S_DataFlashStatus AT91F_PageErase(AT91PS_DataFlash pDataFlash,
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));
}
/*---------------------------------------------------------------------------*/
@@ -329,8 +332,9 @@ AT91S_DataFlashStatus AT91F_PageErase(AT91PS_DataFlash pDataFlash,
/* : */
/* 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 */
@@ -340,8 +344,8 @@ AT91S_DataFlashStatus AT91F_BlockErase(AT91PS_DataFlash pDataFlash,
if (pDataFlash->pDevice->pages_number >= 16384)
cmdsize = 5;
return (AT91F_DataFlashSendCommand(pDataFlash, DB_BLOCK_ERASE, cmdsize,
- block * 8 *
- pDataFlash->pDevice->pages_size));
+ block * 8 *
+ pDataFlash->pDevice->pages_size));
}
/*---------------------------------------------------------------------------*/
@@ -353,15 +357,15 @@ AT91S_DataFlashStatus AT91F_BlockErase(AT91PS_DataFlash pDataFlash,
/* Return value : State of the dataflash */
/*---------------------------------------------------------------------------*/
AT91S_DataFlashStatus AT91F_WriteBufferToMain(AT91PS_DataFlash pDataFlash,
- unsigned char BufferCommand,
- unsigned int dest)
+ 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_BUF1_PAGE_ERASE_PGM) &&
+ (BufferCommand != DB_BUF2_PAGE_PGM) &&
+ (BufferCommand != DB_BUF2_PAGE_ERASE_PGM))
return DATAFLASH_BAD_COMMAND;
/* no data to transmit or receive */
@@ -371,8 +375,8 @@ AT91S_DataFlashStatus AT91F_WriteBufferToMain(AT91PS_DataFlash pDataFlash,
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));
}
/*---------------------------------------------------------------------------*/
@@ -383,9 +387,9 @@ AT91S_DataFlashStatus AT91F_WriteBufferToMain(AT91PS_DataFlash pDataFlash,
/* : <length> = Number of bytes to erase */
/*---------------------------------------------------------------------------*/
AT91S_DataFlashStatus AT91F_PartialPageWrite(AT91PS_DataFlash pDataFlash,
- unsigned char *src,
- unsigned int dest,
- unsigned int size)
+ unsigned char *src,
+ unsigned int dest,
+ unsigned int size)
{
unsigned int page;
unsigned int AdrInPage;
@@ -399,10 +403,10 @@ AT91S_DataFlashStatus AT91F_PartialPageWrite(AT91PS_DataFlash pDataFlash,
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) {
@@ -426,8 +430,8 @@ AT91S_DataFlashStatus AT91F_PartialPageWrite(AT91PS_DataFlash pDataFlash,
/* : <size> = data buffer size */
/*---------------------------------------------------------------------------*/
AT91S_DataFlashStatus AT91F_DataFlashWrite(AT91PS_DataFlash pDataFlash,
- unsigned char *src,
- int dest, int size)
+ unsigned char *src,
+ int dest, int size)
{
unsigned int length;
unsigned int page;
@@ -436,14 +440,14 @@ AT91S_DataFlashStatus AT91F_DataFlashWrite(AT91PS_DataFlash pDataFlash,
AT91F_SpiEnable(pDataFlash->pDevice->cs);
if ((dest + size) > (pDataFlash->pDevice->pages_size *
- (pDataFlash->pDevice->pages_number)))
+ (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) {
- length = pDataFlash->pDevice->pages_size -
- (dest % ((unsigned int)
- (pDataFlash->pDevice->pages_size)));
+ length =
+ pDataFlash->pDevice->pages_size -
+ (dest % ((unsigned int)(pDataFlash->pDevice->pages_size)));
if (size < length)
length = size;
@@ -465,9 +469,9 @@ AT91S_DataFlashStatus AT91F_DataFlashWrite(AT91PS_DataFlash pDataFlash,
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);
@@ -478,7 +482,7 @@ AT91S_DataFlashStatus AT91F_DataFlashWrite(AT91PS_DataFlash pDataFlash,
return DATAFLASH_ERROR;
status = AT91F_WriteBufferToMain(pDataFlash,
- DB_BUF1_PAGE_PGM, dest);
+ DB_BUF1_PAGE_PGM, dest);
if (!status)
return DATAFLASH_ERROR;
@@ -517,20 +521,20 @@ int AT91F_DataFlashRead(AT91PS_DataFlash pDataFlash,
AT91F_SpiEnable(pDataFlash->pDevice->cs);
if (AT91F_DataFlashWaitReady(pDataFlash->pDataFlashDesc,
- AT91C_TIMEOUT_WRDY) != DATAFLASH_OK)
+ AT91C_TIMEOUT_WRDY) != DATAFLASH_OK)
return -1;
while (size) {
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)
+ (uchar *) buffer,
+ SizeToRead) != DATAFLASH_OK)
return -1;
size -= SizeToRead;
generated by cgit v1.1 at 2024-11-28 21:39:07 +0000