mirror of
https://github.com/RGBCube/serenity
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75 lines
2.8 KiB
C++
75 lines
2.8 KiB
C++
/*
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* Copyright (c) 2020, Liav A. <liavalb@hotmail.co.il>
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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*
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* 1. Redistributions of source code must retain the above copyright notice, this
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* list of conditions and the following disclaimer.
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*
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* 2. Redistributions in binary form must reproduce the above copyright notice,
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* this list of conditions and the following disclaimer in the documentation
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* and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
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* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
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* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#pragma once
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#include <Kernel/Devices/BlockDevice.h>
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#include <Kernel/Interrupts/IRQHandler.h>
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#include <Kernel/Lock.h>
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#include <Kernel/Storage/Partition/DiskPartition.h>
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#include <Kernel/Storage/StorageController.h>
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namespace Kernel {
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class StorageDevice : public BlockDevice {
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friend class StorageManagement;
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AK_MAKE_ETERNAL
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public:
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enum class Type : u8 {
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Ramdisk,
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IDE,
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SATA,
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NVMe,
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};
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public:
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virtual Type type() const = 0;
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virtual u64 max_addressable_block() const { return m_max_addressable_block; }
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NonnullRefPtr<StorageController> controller() const;
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// ^BlockDevice
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virtual KResultOr<size_t> read(FileDescription&, u64, UserOrKernelBuffer&, size_t) override;
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virtual bool can_read(const FileDescription&, size_t) const override;
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virtual KResultOr<size_t> write(FileDescription&, u64, const UserOrKernelBuffer&, size_t) override;
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virtual bool can_write(const FileDescription&, size_t) const override;
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// ^Device
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virtual mode_t required_mode() const override { return 0600; }
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protected:
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StorageDevice(const StorageController&, size_t, u64);
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StorageDevice(const StorageController&, int, int, size_t, u64);
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// ^DiskDevice
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virtual const char* class_name() const override;
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private:
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NonnullRefPtr<StorageController> m_storage_controller;
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NonnullRefPtrVector<DiskPartition> m_partitions;
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u64 m_max_addressable_block;
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};
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}
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