Bananymous/banan-os
1
1
Fork 1
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

Kernel: Generalize ATA device and cleanup code

Browse Source
This commit is contained in:
Bananymous
2023-10-12 21:35:25 +03:00
parent 75fdf4c3c6
commit bde9ff9319
9 changed files with 135 additions and 105 deletions
Download Patch File Download Diff File Expand all files Collapse all files

85
kernel/include/kernel/Storage/ATA/ATADevice.h
View File

@@ -6,52 +6,69 @@
namespace Kernel
{
class ATADevice final : public StorageDevice
namespace detail
{
class ATABaseDevice : public StorageDevice
{
public:
enum class Command
{
Read,
Write
};
public:
virtual ~ATABaseDevice() {};
virtual uint32_t sector_size() const override { return m_sector_words * 2; }
virtual uint64_t total_size() const override { return m_lba_count * sector_size(); }
uint32_t words_per_sector() const { return m_sector_words; }
uint64_t sector_count() const { return m_lba_count; }
BAN::StringView model() const { return m_model; }
BAN::StringView name() const;
virtual dev_t rdev() const override { return m_rdev; }
virtual BAN::ErrorOr<size_t> read_impl(off_t, void*, size_t) override;
virtual BAN::ErrorOr<size_t> write_impl(off_t, const void*, size_t) override;
protected:
ATABaseDevice();
BAN::ErrorOr<void> initialize(BAN::Span<const uint16_t> identify_data);
protected:
uint16_t m_signature;
uint16_t m_capabilities;
uint32_t m_command_set;
uint32_t m_sector_words;
uint64_t m_lba_count;
char m_model[41];
const dev_t m_rdev;
};
}
class ATADevice final : public detail::ATABaseDevice
{
public:
static BAN::ErrorOr<BAN::RefPtr<ATADevice>> create(BAN::RefPtr<ATABus>, ATABus::DeviceType, bool is_secondary, BAN::Span<const uint16_t> identify_data);
virtual uint32_t sector_size() const override { return m_sector_words * 2; }
virtual uint64_t total_size() const override { return m_lba_count * sector_size(); }
bool is_secondary() const { return m_is_secondary; }
uint32_t words_per_sector() const { return m_sector_words; }
uint64_t sector_count() const { return m_lba_count; }
BAN::StringView model() const { return m_model; }
BAN::StringView name() const;
protected:
virtual BAN::ErrorOr<void> read_sectors_impl(uint64_t, uint8_t, uint8_t*) override;
virtual BAN::ErrorOr<void> write_sectors_impl(uint64_t, uint8_t, const uint8_t*) override;
private:
ATADevice(BAN::RefPtr<ATABus>, ATABus::DeviceType, bool is_secodary);
BAN::ErrorOr<void> initialize(BAN::Span<const uint16_t> identify_data);
virtual BAN::ErrorOr<void> read_sectors_impl(uint64_t, uint64_t, uint8_t*) override;
virtual BAN::ErrorOr<void> write_sectors_impl(uint64_t, uint64_t, const uint8_t*) override;
private:
BAN::RefPtr<ATABus> m_bus;
const ATABus::DeviceType m_type;
const bool m_is_secondary;
uint16_t m_signature;
uint16_t m_capabilities;
uint32_t m_command_set;
uint32_t m_sector_words;
uint64_t m_lba_count;
char m_model[41];
public:
virtual Mode mode() const override { return { Mode::IFBLK | Mode::IRUSR | Mode::IRGRP }; }
virtual uid_t uid() const override { return 0; }
virtual gid_t gid() const override { return 0; }
virtual dev_t rdev() const override { return m_rdev; }
private:
virtual BAN::ErrorOr<size_t> read_impl(off_t, void*, size_t) override;
public:
const dev_t m_rdev;
};
}
}