/* -------------------------------------------------
* Tell the block base address of the specified address
* Default value : generated based on scatter file
* -------------------------------------------------*/
kal_uint32 custom_Block_Base(kal_uint32 nor_addr)
{
kal_uint32 blk_idx = 0;
NOR_Flash_MTD_Data *mtdflash = (NOR_Flash_MTD_Data *)FlashDriveData.MTDData;
blk_idx = BlockIndex((void *)mtdflash, nor_addr & (~((kal_uint32)mtdflash->BaseAddr)));
return (kal_uint32)BlockAddress((void *)mtdflash, blk_idx);
}
uint32 CachedReadAccessor::FindBlocks(uint32 segment_id,
uint32 size,
uint32 offset,
CacheBlock** block_0,
CacheBlock** block_1) {
// 2 cases:
// 1) request fits in a single block
// 2) request straddles 2 blocks
CacheBlockAddress address_0 = BlockAddress(segment_id, offset);
*block_0 = GetCacheBlock(address_0);
// Check if we straddle 2 blocks.
uint32 next_block_offset = address_0.Offset() + block_size_;
bool straddles_blocks = offset + size > next_block_offset;
if (straddles_blocks) { // both blocks returned
CacheBlockAddress address_1(segment_id, next_block_offset);
*block_1 = GetCacheBlock(address_1);
return 2;
} else { // Only block_0 returned
*block_1 = NULL;
return 1;
}
}
