flash_lib.c

freescale atk source code

/*****************************************************************************
** flash_lib.c
**
** Copyright 2007 Freescale Semiconductor, Inc. All Rights Reserved.
**
** This file contains copyrighted material. Use of this file is
** restricted by the provisions of a Freescale Software License
** Agreement, which has either been electronically accepted by
** you or has been expressly executed between the parties.
**
** Description: Explanation for the usage of this file.
**
** Revision History:
** -----------------
*****************************************************************************/

/*!
 * @file flash_lib.c
 *
 * @brief source code for the interfaces of flash lib
 *
 * @ingroup flash
 */

/*****************************************************************************
* <Includes>
*****************************************************************************/
#include "type.h"
#include "pu_irom_mmc.h"
#include "pu_irom_card.h"
#include "protocol.h"
#include "flash_lib.h"
#include "debug.h"

static u8 card_status = 0;

/*!
 * Function 
 *
 * @req  command request returned to caller
 * 
 * @return 0 successful, less than 0 error
 */
s16 atk_flash_lib_initial (void)
{
	s16 ret;
	
	ret = card_init(1,0x50004000);
	
	if ( RET_SUCCESS == ret) {
		card_status = 1;
		return RET_SUCCESS;
	}
	return FLASH_FAILED;
		
}
/*!
 * Function 
 *
 * @req  command request returned to caller
 * 
 * @return 0 successful, less than 0 error
 */
s16 atk_flash_lib_erase (u32 offset, u32 size, response_callback callback)
{
	s16 ret;
	
	if (!card_status) {
		return FLASH_ERROR_INIT;
	}
	
	ret = mmc_data_erase(offset,size);
	
	if ( RET_SUCCESS == ret)
		return RET_SUCCESS;

	return FLASH_ERROR_ERASE;
}
/*!
 * Function 
 *
 * @req  command request returned to caller
 * 
 * @return 0 successful, less than 0 error
 */
s16 atk_flash_lib_read (u32 offset, u8 *buffer, u32 count,dump_callback callback,u32 bufsize)
{
	s16 ret;
	
	if (!card_status) {
		return FLASH_ERROR_INIT;
	}
    ret = mmc_data_read((U32*)buffer,count,offset,callback);
  
	if ( RET_SUCCESS == ret)
		return RET_SUCCESS;
	else
		return FLASH_FAILED;
}
/*!
 * Function 
 *
 * @req  command request returned to caller
 * 
 * @return 0 successful, less than 0 error
 */
s16 atk_flash_lib_program (u32 offset, const u8 *buffer, u32 *pcount, u16 *pcsum, u8 mode,u8 file_format,response_callback callback)
{
	s16 ret;
	int i;

	if (!card_status) {
		return FLASH_ERROR_INIT;
	}
    ret = mmc_data_write((U32*)buffer,*pcount,offset,callback);
  
	if ( RET_SUCCESS != ret)
		return FLASH_FAILED;
	
	ret = mmc_data_read((U32*)buffer,*pcount,offset,NULL);
	
	if ( RET_SUCCESS != ret)
		return FLASH_FAILED;
    
	/* send the verify response to host */
    if(callback)
	    callback(FLASH_VERIFY, 0, *pcount);
    
    *pcsum = calculate_checksum(buffer,*pcount);
		
	return RET_SUCCESS;
		
}
/*!
 * Function to get the flash model
 * @param	[out] fmodel- the flash model
 * @param	[out] len		-the len
 * @return 	void
 */
void atk_flash_get_model(u8 *fmodel, u32 *len)
{
	u8 model[] = "MMC";
	int i;
	for(i=0;i<sizeof(model);i++)
		fmodel[i] =  model[i];
	*len = sizeof(model) -1;
}