__HAL_HASH_GET_FLAG macro

specifies the flag to check. This parameter can be one of the following values: @arg HASH_FLAG_DINIS A new block can be entered into the input buffer. @arg HASH_FLAG_DCIS Digest calculation complete. @arg HASH_FLAG_DMAS DMA interface is enabled (DMAE=1) or a transfer is ongoing. @arg HASH_FLAG_BUSY The hash core is Busy : processing a block of data. @arg HASH_FLAG_DINNE DIN not empty : the input buffer contains at least one word of data.