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https://github.com/RGBCube/serenity
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500b7b08d6
The Storage subsystem, like the Audio and HID subsystems, exposes Unix device files (for example, in the /dev directory). To ensure consistency across the repository, we should make the Storage subsystem to reside in the Kernel/Devices directory like the two other mentioned subsystems.
49 lines
1.4 KiB
C++
49 lines
1.4 KiB
C++
/*
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* Copyright (c) 2023, the SerenityOS developers.
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*
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* SPDX-License-Identifier: BSD-2-Clause
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*/
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#pragma once
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#include <AK/Function.h>
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#include <AK/Result.h>
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#include <AK/Types.h>
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#include <Kernel/Devices/Storage/SD/Registers.h>
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#include <Kernel/Devices/Storage/StorageDevice.h>
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#include <Kernel/Locking/Mutex.h>
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namespace Kernel {
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class SDHostController;
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class SDMemoryCard : public StorageDevice {
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public:
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SDMemoryCard(SDHostController& sdhc, StorageDevice::LUNAddress, u32 hardware_relative_controller_id, u32 block_len, u64 capacity_in_blocks, u32 relative_card_address, SD::OperatingConditionRegister ocr, SD::CardIdentificationRegister cid, SD::SDConfigurationRegister scr);
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// ^StorageDevice
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virtual CommandSet command_set() const override { return CommandSet::SD; }
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// ^BlockDevice
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virtual void start_request(AsyncBlockDeviceRequest&) override;
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private:
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enum class CardAddressingMode {
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ByteAddressing,
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BlockAddressing
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};
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CardAddressingMode card_addressing_mode() const
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{
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return m_ocr.card_capacity_status ? CardAddressingMode::BlockAddressing : CardAddressingMode::ByteAddressing;
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}
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Mutex m_lock { "SDMemoryCard"sv };
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SDHostController& m_sdhc;
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u32 m_relative_card_address;
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SD::OperatingConditionRegister m_ocr;
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SD::CardIdentificationRegister m_cid;
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SD::SDConfigurationRegister m_scr;
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};
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}
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