forked from Bananymous/banan-os
74 lines
2.3 KiB
C++
74 lines
2.3 KiB
C++
#pragma once
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#include <BAN/StringView.h>
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#include <kernel/FS/FileSystem.h>
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#include <kernel/SpinLock.h>
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#include <sys/sysmacros.h>
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namespace Kernel
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{
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class Device;
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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 DeviceManager& get();
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void initialize_pci_devices();
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void initialize_updater();
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ino_t get_next_ino() const;
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dev_t get_next_rdev() const;
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uint8_t get_next_input_dev() const;
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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 InodeType inode_type() const override { return InodeType::Device; }
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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 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 1; }
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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 { ASSERT(m_blksize); return m_blksize; }
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virtual blkcnt_t blocks() const override { return 0; }
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virtual dev_t dev() const override { return makedev(0, 5); }
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virtual dev_t rdev() const override { return 0; }
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virtual BAN::ErrorOr<size_t> read(size_t, void*, size_t) { return BAN::Error::from_errno(EISDIR); }
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virtual BAN::ErrorOr<void> create_file(BAN::StringView, mode_t) { return BAN::Error::from_errno(ENOTSUP); }
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void set_blksize(blksize_t blksize) { m_blksize = blksize; }
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private:
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blksize_t m_blksize = 0;
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};
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} |