/************************************************************************
* NAME: fapp_mem_erase
*
* DESCRIPTION:
************************************************************************/
static fnet_return_t fapp_mem_erase( void *addr, fnet_size_t n)
{
fnet_return_t result = FNET_ERR;
const struct fapp_mem_region *region;
if(fapp_mem_region_is_protected( (fnet_uint32_t)addr, n) == FNET_FALSE)
{
/* Find memory region.*/
region = fapp_mem_region_find( (fnet_uint32_t)addr, n);
if(region)
{
if(region->erase)
{
region->erase(addr, n);
result = FNET_OK;
}
}
}
return result;
}
/************************************************************************
* NAME: fapp_mem_erase
*
* DESCRIPTION:
************************************************************************/
static int fapp_mem_erase( void *addr, unsigned n)
{
int result = FNET_ERR;
const struct fapp_mem_region *region;
if(fapp_mem_region_is_protected( (unsigned long)addr, n) == 0)
{
/* Find memory region.*/
region = fapp_mem_region_find( (unsigned long)addr, n);
if(region)
{
if(region->erase)
{
region->erase(addr, n);
result = FNET_OK;
}
}
}
return result;
}
/************************************************************************
* NAME: fapp_mem_memcpy
*
* DESCRIPTION:
************************************************************************/
fnet_return_t fapp_mem_memcpy (fnet_shell_desc_t desc, void *dest, const void *src, fnet_size_t n )
{
fnet_size_t i;
const struct fapp_mem_region *region;
if(fapp_mem_region_is_protected( (fnet_uint32_t)dest, n) == FNET_FALSE)
{
/* Find memory region.*/
region = fapp_mem_region_find( (fnet_uint32_t)dest, n);
if(region && (region->memcpy))
{
#if FAPP_CFG_CHECK_FLASH_BEFORE_WRITE
if(region->erase)
{
/* Check if memory is erased.*/
for(i=0u; i<n; i++)
{
if(((fnet_uint8_t *)dest)[i] != 0xFFu)
{
fnet_shell_println(desc, FAPP_MEM_ERROR_NOTERASED);
goto FAIL;
}
}
}
#endif
/* Write. */
region->memcpy(dest, src, n);
/* Verify result. */
#if 0 /* Old code.*/
for(i=0; i<n; i++)
{
if(((volatile fnet_uint8_t *)dest)[i] !=((fnet_uint8_t *)src)[i])
{
goto FAIL;
}
}
#else
/* Workaround of the Flash cache issue discovered on K60.*/
/* Delay. fnet_timer_delay(1); is too big - 100ms.*/
for(i=0u; i<100000000u; i++)
{
if(fnet_memcmp(dest, src, n) == 0)
{
break;
}
}
if(i==100000000u)
{
goto FAIL;
}
#endif
return FNET_OK;
}
}
FAIL:
fnet_shell_println(desc, FAPP_MEM_ERROR_WRITEFAILED, n, dest);
return FNET_ERR;
}