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:
** -----------------
**                            Modification     Tracking
**Author (core ID)                Date          Number    Description of Changes
**-------------------------   ------------    ----------  --------------------------------------------
**Terry Lv (r65388)           09/15/2006                  Initial Implementation
**-------------------------   ------------    ----------  --------------------------------------------
*****************************************************************************/

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

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

#define TY_DBG

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);

    //return ret;

	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 = sd_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 = sd_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;

	if (!card_status) {
		return FLASH_ERROR_INIT;
	}
    ret = sd_data_write((U32*)buffer, *pcount, offset, callback);
  
	if ( RET_SUCCESS != ret)
		return FLASH_FAILED;
	
	ret = sd_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[] = "SD";
	int i;
	for(i = 0; i < sizeof(model); i++)
		fmodel[i] = model[i];
	*len = sizeof(model) - 1;
}