rcore-tutorial/os/src/drivers/block/mod.rs
2022-01-22 12:40:54 -08:00

32 lines
861 B
Rust

mod sdcard;
mod virtio_blk;
use alloc::sync::Arc;
use easy_fs::BlockDevice;
use lazy_static::*;
#[cfg(feature = "board_qemu")]
type BlockDeviceImpl = virtio_blk::VirtIOBlock;
#[cfg(feature = "board_k210")]
type BlockDeviceImpl = sdcard::SDCardWrapper;
lazy_static! {
pub static ref BLOCK_DEVICE: Arc<dyn BlockDevice> = Arc::new(BlockDeviceImpl::new());
}
#[allow(unused)]
pub fn block_device_test() {
let block_device = BLOCK_DEVICE.clone();
let mut write_buffer = [0u8; 512];
let mut read_buffer = [0u8; 512];
for i in 0..512 {
for byte in write_buffer.iter_mut() {
*byte = i as u8;
}
block_device.write_block(i as usize, &write_buffer);
block_device.read_block(i as usize, &mut read_buffer);
assert_eq!(write_buffer, read_buffer);
}
println!("block device test passed!");
}