File content as of revision 1:36b940e6b8d2:

/* Copyright (c) 2010-2016 mbed.org, MIT License
*
* Permission is hereby granted, free of charge, to any person obtaining a copy of this software
* and associated documentation files (the "Software"), to deal in the Software without
* restriction, including without limitation the rights to use, copy, modify, merge, publish,
* distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in all copies or
* substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING
* BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
* DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*/

#ifndef __SDRAM_DISCO_F746NG_H
#define __SDRAM_DISCO_F746NG_H

#ifdef TARGET_DISCO_F746NG

#include "mbed.h"
#include "stm32746g_discovery_sdram.h"
#include "BlockDevice.h"

/*
  This class drives the SDRAM driver (MT48LC4M32B2B5-7) present on DISCO_F746NG board.

  Usage:

  #include "mbed.h"
  #include "SDRAM_DISCO_F746NG.h"

  int main()
  {
	  sdram.WriteData(SDRAM_DEVICE_ADDR + WRITE_READ_ADDR, WriteBuffer, BUFFER_SIZE);
	  SDRAMCommandStructure.CommandMode            = FMC_SDRAM_CMD_SELFREFRESH_MODE;
      SDRAMCommandStructure.CommandTarget          = FMC_SDRAM_CMD_TARGET_BANK2;
      SDRAMCommandStructure.AutoRefreshNumber      = 1;
      SDRAMCommandStructure.ModeRegisterDefinition = 0;
      sdram.Sendcmd(&SDRAMCommandStructure);
      SDRAMCommandStructure.CommandMode = FMC_SDRAM_CMD_NORMAL_MODE;
      sdram.Sendcmd(&SDRAMCommandStructure);
      sdram.ReadData(SDRAM_DEVICE_ADDR + WRITE_READ_ADDR, ReadBuffer, BUFFER_SIZE);
      CompareBuffer(WriteBuffer, ReadBuffer, BUFFER_SIZE);
      while(1) {
      }
  }

*/
class SDRAM_DISCO_F746NG_BlockDevice : public BlockDevice
{
  
public:
  //! Constructor
  //SDRAM_DISCO_F746NG_BlockDevice();

  //! Destructor
  //~SDRAM_DISCO_F746NG_BlockDevice();


  /**
    * @brief  Initializes the SDRAM device.
    * @retval SDRAM status
    */
    
  virtual int init();	
  //virtual uint8_t Init(void);

  /**
    * @brief  DeInitializes the SDRAM device.
    * @retval SDRAM status
    */
    
  virtual int deinit();
  //virtual uint8_t DeInit(void);

  /**
    * @brief  Programs the SDRAM device.
    * @param  RefreshCount: SDRAM refresh counter value 
    * @retval None
    */
  
  void Initialization_sequence(uint32_t RefreshCount);

  /**
    * @brief  Reads an amount of data from the SDRAM memory in polling mode.
    * @param  uwStartAddress: Read start address
    * @param  pData: Pointer to data to be read  
    * @param  uwDataSize: Size of read data from the memory
    * @retval SDRAM status
    */
    
  virtual int read(void *buffer, bd_addr_t addr, bd_size_t size);
  //uint8_t ReadData(uint32_t uwStartAddress, uint32_t *pData, uint32_t uwDataSize);

  /**
    * @brief  Reads an amount of data from the SDRAM memory in DMA mode.
    * @param  uwStartAddress: Read start address
    * @param  pData: Pointer to data to be read  
    * @param  uwDataSize: Size of read data from the memory
    * @retval SDRAM status
    */

  uint8_t ReadData_DMA(uint32_t uwStartAddress, uint32_t *pData, uint32_t uwDataSize);

  /**
    * @brief  Writes an amount of data to the SDRAM memory in polling mode.
    * @param  uwStartAddress: Write start address
    * @param  pData: Pointer to data to be written  
    * @param  uwDataSize: Size of written data from the memory
    * @retval SDRAM status
    */

  virtual int program(const void *buffer, bd_addr_t addr, bd_size_t size);
  //uint8_t WriteData(uint32_t uwStartAddress, uint32_t *pData, uint32_t uwDataSize); 

  /**
    * @brief  Writes an amount of data to the SDRAM memory in DMA mode.
    * @param  uwStartAddress: Write start address
    * @param  pData: Pointer to data to be written  
    * @param  uwDataSize: Size of written data from the memory
    * @retval SDRAM status
    */
  uint8_t WriteData_DMA(uint32_t uwStartAddress, uint32_t *pData, uint32_t uwDataSize); 

  /**
    * @brief  Sends command to the SDRAM bank.
    * @param  SdramCmd: Pointer to SDRAM command structure 
    * @retval SDRAM status
    */  
  uint8_t Sendcmd(FMC_SDRAM_CommandTypeDef *SdramCmd);
  
  virtual int erase(bd_addr_t addr, bd_size_t size);
  virtual bd_size_t get_read_size() const;
  virtual bd_size_t get_program_size() const;
  virtual bd_size_t get_erase_size() const;
  virtual bd_size_t size() const;  

private:

};

#else
#error "This class must be used with DISCO_F746NG board only."
#endif // TARGET_DISCO_F746NG

#endif