1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
|
#pragma once
#include <cstdint>
#include <klibc/stdio.hpp>
#include <utils/align.hpp>
enum class partition_style : std::uint8_t {
err = 0,
mbr = 1,
gpt = 2,
raw = 5
};
struct disk {
void* arg;
std::size_t lba_size;
std::size_t disk_size;
bool (*read)(void* arg, char* buffer, std::uint64_t lba, std::size_t len_in_blocks);
bool (*write)(void* arg, char* buffer, std::uint64_t lba, std::size_t len_in_blocks);
};
struct bytes_to_block_res {
std::uint64_t lba;
std::uint64_t size_in_blocks;
std::uint64_t offset;
};
inline static bytes_to_block_res bytes_to_blocks(std::uint64_t start, std::uint64_t size, std::uint64_t lba_size) {
bytes_to_block_res result;
result.lba = ALIGNDOWN(start,lba_size) / lba_size;
result.size_in_blocks = (ALIGNUP(size,lba_size) / lba_size) == 0 ? 1 : (ALIGNUP(size,lba_size) / lba_size);
result.offset = start - ALIGNDOWN(start, lba_size);
return result;
}
namespace drivers {
void init_disk(disk* new_disk);
};
|
