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https://github.com/RGBCube/serenity
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2718d7c74c
Also handle native and compatibility channel modes together, so if only one IDE channel was set to work on PCI native mode, we need to handle it separately, so the other channel continue to operate with the legacy IO ports and interrupt line.
69 lines
2.7 KiB
C++
69 lines
2.7 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 <AK/OwnPtr.h>
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#include <AK/RefPtr.h>
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#include <AK/Types.h>
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#include <Kernel/Storage/IDEChannel.h>
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#include <Kernel/Storage/StorageController.h>
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#include <Kernel/Storage/StorageDevice.h>
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namespace Kernel {
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class AsyncBlockDeviceRequest;
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class IDEController final : public StorageController
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, public PCI::DeviceController {
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AK_MAKE_ETERNAL
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public:
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static NonnullRefPtr<IDEController> initialize(PCI::Address address, bool force_pio);
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virtual ~IDEController() override;
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virtual Type type() const override { return Type::IDE; }
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virtual RefPtr<StorageDevice> device(u32 index) const override;
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virtual bool reset() override;
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virtual bool shutdown() override;
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virtual size_t devices_count() const override;
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virtual void start_request(const StorageDevice&, AsyncBlockDeviceRequest&) override;
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virtual void complete_current_request(AsyncDeviceRequest::RequestResult) override;
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bool is_bus_master_capable() const;
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bool is_pci_native_mode_enabled() const;
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private:
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bool is_pci_native_mode_enabled_on_primary_channel() const;
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bool is_pci_native_mode_enabled_on_secondary_channel() const;
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IDEController(PCI::Address address, bool force_pio);
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RefPtr<StorageDevice> device_by_channel_and_position(u32 index) const;
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void initialize(bool force_pio);
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void detect_disks();
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NonnullRefPtrVector<IDEChannel> m_channels;
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};
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}
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