use crate::errors::*;

#[derive(Debug, Copy, Clone)]
pub struct BlockDeviceGeometry {
    pub block_size: usize,
    pub block_count: usize,
}

pub trait BlockDevice {
    fn geom(&self) -> BlockDeviceGeometry;
    fn read_block(&self, block: usize, block: &mut [u8]) -> Result<(), BFSErr>;
    fn write_block(&mut self, block: usize, block: &[u8]) -> Result<(), BFSErr>;
    fn erase_block(&mut self, block: usize) -> Result<(), BFSErr>;

    fn read_range(&self, addr: usize, data: &mut [u8]) -> Result<(), BFSErr>;
    fn write_range(&mut self, addr: usize, data: &[u8]) -> Result<(), BFSErr>;
    fn overwrite_range(&mut self, addr: usize, data: &[u8]) -> Result<(), BFSErr>;
}