forked from Bananymous/banan-os
86 lines
2.4 KiB
C++
86 lines
2.4 KiB
C++
#pragma once
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#include <BAN/StringView.h>
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#include <BAN/Vector.h>
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#include <kernel/FS/FileSystem.h>
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#include <kernel/FS/Inode.h>
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#include <kernel/SpinLock.h>
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namespace Kernel
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{
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class Device : public Inode
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{
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public:
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enum class DeviceType
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{
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BlockDevice,
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CharacterDevice,
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DeviceController
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};
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virtual ~Device() {}
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virtual DeviceType device_type() const = 0;
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virtual void update() {}
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};
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class BlockDevice : public Device
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{
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public:
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virtual DeviceType device_type() const override { return DeviceType::BlockDevice; }
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};
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class CharacterDevice : public Device
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{
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public:
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virtual DeviceType device_type() const override { return DeviceType::CharacterDevice; }
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};
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class DeviceManager final : public FileSystem, public Inode
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{
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BAN_NON_COPYABLE(DeviceManager);
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BAN_NON_MOVABLE(DeviceManager);
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public:
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static void initialize();
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static DeviceManager& get();
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void update();
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void add_device(Device*);
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virtual BAN::RefPtr<Inode> root_inode() override { return this; }
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virtual BAN::StringView name() const override { return "device-manager"; }
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virtual BAN::ErrorOr<BAN::RefPtr<Inode>> read_directory_inode(BAN::StringView) override;
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virtual BAN::ErrorOr<BAN::Vector<BAN::String>> read_directory_entries(size_t) override;
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private:
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DeviceManager() = default;
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private:
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SpinLock m_lock;
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BAN::Vector<Device*> m_devices;
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friend class BAN::RefPtr<DeviceManager>;
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public:
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virtual ino_t ino() const override { return 0; }
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virtual mode_t mode() const override { return Mode::IFDIR | Mode::IRUSR | Mode::IWUSR | Mode::IXUSR | Mode::IRGRP | Mode::IXGRP | Mode::IROTH | Mode::IXOTH; }
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virtual nlink_t nlink() const override { return 0; }
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virtual uid_t uid() const override { return 0; }
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virtual gid_t gid() const override { return 0; }
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virtual off_t size() const override { return 0; }
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virtual timespec atime() const override { return { 0, 0 }; }
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virtual timespec mtime() const override { return { 0, 0 }; }
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virtual timespec ctime() const override { return { 0, 0 }; }
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virtual blksize_t blksize() const override { return 0; }
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virtual blkcnt_t blocks() const override { return 0; }
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virtual dev_t dev() const override { return 0x4935; }
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virtual dev_t rdev() const override { return 0x7854; }
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virtual BAN::ErrorOr<size_t> read(size_t, void*, size_t) { ASSERT_NOT_REACHED(); }
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virtual BAN::ErrorOr<void> create_file(BAN::StringView, mode_t) { ASSERT_NOT_REACHED(); }
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};
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} |