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Kernel: StorageDevice and Ext2 "support" writing

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Bananymous
2023-03-23 12:54:59 +02:00
parent 5f6c58ffd2
commit 9b56801c3d
7 changed files with 88 additions and 3 deletions
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1
kernel/include/kernel/FS/Ext2.h
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@@ -182,6 +182,7 @@ namespace Kernel
BAN::ErrorOr<Ext2::Inode> read_inode(uint32_t);
BAN::ErrorOr<BAN::Vector<uint8_t>> read_block(uint32_t);
BAN::ErrorOr<void> write_block(uint32_t, BAN::Span<const uint8_t>);
const Ext2::Superblock& superblock() const { return m_superblock; }

3
kernel/include/kernel/Storage/ATAController.h
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@@ -14,6 +14,7 @@ namespace Kernel
{
public:
virtual BAN::ErrorOr<void> read_sectors(uint64_t, uint8_t, uint8_t*) override;
virtual BAN::ErrorOr<void> write_sectors(uint64_t, uint8_t, const uint8_t*) override;
virtual uint32_t sector_size() const override { return sector_words * 2; }
virtual uint64_t total_size() const override { return lba_count * sector_size(); }
@@ -49,6 +50,7 @@ namespace Kernel
uint8_t read(uint16_t);
void read_buffer(uint16_t, uint16_t*, size_t);
void write(uint16_t, uint8_t);
void write_buffer(uint16_t, const uint16_t*, size_t);
BAN::ErrorOr<void> wait(bool);
BAN::Error error();
};
@@ -63,6 +65,7 @@ namespace Kernel
BAN::ErrorOr<void> initialize();
BAN::ErrorOr<void> read(ATADevice*, uint64_t, uint8_t, uint8_t*);
BAN::ErrorOr<void> write(ATADevice*, uint64_t, uint8_t, const uint8_t*);
private:
SpinLock m_lock;

2
kernel/include/kernel/Storage/StorageDevice.h
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@@ -29,6 +29,7 @@ namespace Kernel
const StorageDevice& device() const { return m_device; }
BAN::ErrorOr<void> read_sectors(uint64_t lba, uint8_t sector_count, uint8_t* buffer);
BAN::ErrorOr<void> write_sectors(uint64_t lba, uint8_t sector_count, const uint8_t* buffer);
bool is_used() const { uint8_t zero[16] {}; return memcmp(&m_type, zero, 16); }
private:
@@ -47,6 +48,7 @@ namespace Kernel
BAN::ErrorOr<void> initialize_partitions();
virtual BAN::ErrorOr<void> read_sectors(uint64_t lba, uint8_t sector_count, uint8_t* buffer) = 0;
virtual BAN::ErrorOr<void> write_sectors(uint64_t lba, uint8_t sector_count, const uint8_t* buffer) = 0;
virtual uint32_t sector_size() const = 0;
virtual uint64_t total_size() const = 0;