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Diffstat (limited to 'MakefileBasedBuild/Atmel/sam3x/sam3x-ek/libraries/libboard_sam3x-ek/source/at45d.c')
| -rw-r--r-- | MakefileBasedBuild/Atmel/sam3x/sam3x-ek/libraries/libboard_sam3x-ek/source/at45d.c | 302 |
1 files changed, 0 insertions, 302 deletions
diff --git a/MakefileBasedBuild/Atmel/sam3x/sam3x-ek/libraries/libboard_sam3x-ek/source/at45d.c b/MakefileBasedBuild/Atmel/sam3x/sam3x-ek/libraries/libboard_sam3x-ek/source/at45d.c deleted file mode 100644 index 100d517..0000000 --- a/MakefileBasedBuild/Atmel/sam3x/sam3x-ek/libraries/libboard_sam3x-ek/source/at45d.c +++ /dev/null @@ -1,302 +0,0 @@ -/* ----------------------------------------------------------------------------
- * ATMEL Microcontroller Software Support
- * ----------------------------------------------------------------------------
- * Copyright (c) 2011, Atmel Corporation
- *
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions are met:
- *
- * - Redistributions of source code must retain the above copyright notice,
- * this list of conditions and the disclaimer below.
- *
- * Atmel's name may not be used to endorse or promote products derived from
- * this software without specific prior written permission.
- *
- * DISCLAIMER: THIS SOFTWARE IS PROVIDED BY ATMEL "AS IS" AND ANY EXPRESS OR
- * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
- * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT ARE
- * DISCLAIMED. IN NO EVENT SHALL ATMEL BE LIABLE FOR ANY DIRECT, INDIRECT,
- * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
- * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA,
- * OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
- * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
- * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
- * EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- * ----------------------------------------------------------------------------
- */
-
-/**
- * \addtogroup external_component External Component
- *
- * \addtogroup at45d_module AT45 driver
- * \ingroup external_component
- * The AT45 Dataflash driver is based on the corresponding AT45 driver.
- * A AT45 instance has to be initialized using the Dataflash levle function
- * AT45_Configure(). AT45 Dataflash can be automatically detected using
- * the AT45_FindDevice() function. Then AT45 dataflash operations such as
- * read, write and erase DF can be launched using AT45_SendCommand function
- * with corresponding AT45 command set.
- *
- * \section Usage
- * <ul>
- * <li> Reads data from the At45 at the specified address using AT45D_Read().</li>
- * <li> Writes data on the At45 at the specified address using AT45D_Write().</li>
- * <li> Erases a page of data at the given address using AT45D_Erase().</li>
- * <li> Poll until the At45 has completed of corresponding operations using
- * AT45D_WaitReady().</li>
- * <li> Retrieves and returns the At45 current using AT45D_GetStatus().</li>
- * </ul>
- * Related files :\n
- * \ref at45d.c\n
- * \ref at45d.h.\n
- */
- /*@{*/
- /*@}*/
-
-
-/**
- * \file
- *
- * Implementation of At45 driver.
- *
- */
-
-/*----------------------------------------------------------------------------
- * Headers
- *----------------------------------------------------------------------------*/
-
-#include "board.h"
-
-#include <assert.h>
-#include <string.h>
-
-/*----------------------------------------------------------------------------
- * Local functions
- *----------------------------------------------------------------------------*/
-
-/**
- * \brief Wait for transfer to finish calling the SPI driver ISR (interrupts are
- * disabled).
- *
- * \param pAt45 Pointer to an AT45 driver instance.
- */
-static void AT45D_Wait( At45* pAt45 )
-{
- /* Wait for transfer to finish */
- while ( AT45_IsBusy( pAt45 ) )
- {
- if (pAt45->dwInterfaceType == AT45_INTERFACE_TYPE_USART_SPI)
- {
- USART_SPIDHandler(pAt45->pUsartd);
- }
- else
- {
- SPID_Handler( pAt45->pSpid ) ;
- }
- }
-}
-
-/*----------------------------------------------------------------------------
- * Global functions
- *----------------------------------------------------------------------------*/
-
-/**
- * \brief Waits for the At45 to be ready to accept new commands.
- *
- * \param pAt45 Pointer to an AT45 driver instance.
- */
-void AT45D_WaitReady( At45* pAt45 )
-{
- uint8_t ready = 0;
-
- assert( pAt45 != NULL ) ;
-
- /* Poll device until it is ready. */
- while (!ready)
- {
- ready = AT45_STATUS_READY(AT45D_GetStatus(pAt45));
- }
-}
-
-/**
- * \brief Retrieves and returns the At45 current status, or 0 if an error happened.
- *
- * \param pAt45 Pointer to an AT45 driver instance.
- * \return Return ucStatus for success or 0 for error;
- */
-uint32_t AT45D_GetStatus( At45* pAt45 )
-{
- uint32_t dwError ;
- uint8_t ucStatus ;
-
- assert( pAt45 != NULL ) ;
-
- /* Issue a status register read command */
- dwError = AT45_SendCommand( pAt45, AT45_STATUS_READ, 1, &ucStatus, 1, 0, 0, 0 ) ;
-
- if (dwError)
- {
- TRACE_ERROR("AT45D_GetStatus error %u\n\r", dwError);
-
- return 0;
- }
-
- /* Wait for command to terminate */
- while ( AT45_IsBusy( pAt45 ) )
- {
- AT45D_Wait( pAt45 ) ;
- }
-
- return ucStatus ;
-}
-
-/**
- * \brief Reads data from the At45 inside the provided buffer. Since a continuous
- * read command is used, there is no restriction on the buffer size and read address.
- *
- * \param pAt45 Pointer to an AT45 driver instance.
- * \param pBuffer Data buffer.
- * \param size Number of bytes to read.
- * \param address Address at which data shall be read.
- * \return Return 1 for success or 0 for error;
- */
-uint32_t AT45D_Read( At45* pAt45, uint8_t* pucBuffer, uint32_t dwSize, uint32_t dwAddress )
-{
- uint32_t dwError ;
-
- assert( pAt45 != NULL ) ;
- assert( pucBuffer != NULL ) ;
-
- /* Issue a continuous read array command. */
- dwError = AT45_SendCommand( pAt45, AT45_CONTINUOUS_READ_LEG, 8, pucBuffer, dwSize, dwAddress, 0, 0 ) ;
-
- if (dwError)
- {
- TRACE_ERROR("AT45D_GetStatus error %u\n\r", dwError);
-
- return 0;
- }
-
- /* Wait for the read command to execute. */
- while ( AT45_IsBusy( pAt45 ) )
- {
- AT45D_Wait( pAt45 ) ;
- }
-
- return 1;
-}
-
-/**
- * \brief Writes data on the At45 at the specified address. Only one page of
- * data is written that way; if the address is not at the beginning of the
- * page, the data is written starting from this address and wraps around to
- * the beginning of the page.
- *
- * \param pAt45 Pointer to an AT45 driver instance.
- * \param pucBuffer Data buffer.
- * \param dwSize Number of bytes to write.
- * \param dwAddress Destination address on the At45.
- * \return Return 1 for success or 0 for error;
- */
-uint32_t AT45D_Write( At45* pAt45, uint8_t *pucBuffer, uint32_t dwSize, uint32_t dwAddress )
-{
- uint8_t dwError ;
-
- assert( pAt45 != NULL ) ;
- assert( pucBuffer != NULL ) ;
- assert( dwSize <= pAt45->pDesc->dwPageSize ) ;
-
- /* Issue a page write through buffer 1 command. */
- dwError = AT45_SendCommand( pAt45, AT45_PAGE_WRITE_BUF1, 4, pucBuffer, dwSize, dwAddress, 0, 0 ) ;
-
- if (dwError)
- {
- TRACE_ERROR("AT45D_GetStatus error %d\n\r", dwError);
-
- return 0;
- }
-
-
- /* Wait until the command is sent. */
- while ( AT45_IsBusy( pAt45 ) )
- {
- AT45D_Wait( pAt45 ) ;
- }
-
- /* Wait until the At45 becomes ready again.*/
- AT45D_WaitReady( pAt45 ) ;
-
- return 1;
-}
-
-/**
- * \brief Erases a page of data at the given address in the At45.
- *
- * \param pAt45 Pointer to an AT45 driver instance.
- * \param dwAddress Address of page to erase.
- * \return Return 1 for success or 0 for error;
- */
-uint32_t AT45D_Erase( At45* pAt45, uint32_t dwAddress )
-{
- uint32_t dwError ;
-
- assert( pAt45 != NULL ) ;
-
- /* Issue a page erase command. */
- dwError = AT45_SendCommand( pAt45, AT45_PAGE_ERASE, 4, 0, 0, dwAddress, 0, 0 ) ;
-
- if (dwError)
- {
- TRACE_ERROR("AT45D_GetStatus error %u\n\r", dwError);
-
- return 0;
- }
-
- /* Wait for end of transfer. */
- while ( AT45_IsBusy(pAt45 ) )
- {
- AT45D_Wait( pAt45 ) ;
- }
-
- /* Poll until the At45 has completed the erase operation. */
- AT45D_WaitReady( pAt45 ) ;
-
- return 1;
-}
-
-/**
- * \brief Configure power-of-2 binary page size in the At45.
- *
- * \param pAt45 Pointer to an AT45 driver instance.
- * \return Return 1 for success or 0 for error;
- */
-uint32_t AT45D_BinaryPage( At45* pAt45 )
-{
- uint8_t dwError ;
- uint8_t opcode[3]= {AT45_BINARY_PAGE};
- assert( pAt45 != NULL ) ;
-
- /* Issue a binary page command. */
-
- dwError = AT45_SendCommand( pAt45, AT45_BINARY_PAGE_FIRST_OPCODE, 1, opcode, 3, 0, 0, 0 ) ;
-
- if (dwError)
- {
- TRACE_ERROR("AT45D_GetStatus error %d\n\r", dwError);
-
- return 0;
- }
-
- /* Wait for end of transfer.*/
- while ( AT45_IsBusy( pAt45 ) )
- {
- AT45D_Wait( pAt45 ) ;
- }
-
- /* Wait until the At45 becomes ready again.*/
- AT45D_WaitReady( pAt45 ) ;
-
- return 1;
-}
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