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5d180d1f99
(...and ASSERT_NOT_REACHED => VERIFY_NOT_REACHED) Since all of these checks are done in release builds as well, let's rename them to VERIFY to prevent confusion, as everyone is used to assertions being compiled out in release. We can introduce a new ASSERT macro that is specifically for debug checks, but I'm doing this wholesale conversion first since we've accumulated thousands of these already, and it's not immediately obvious which ones are suitable for ASSERT.
129 lines
4.2 KiB
C++
129 lines
4.2 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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#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/IDEController.h>
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#include <Kernel/Storage/PATADiskDevice.h>
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namespace Kernel {
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UNMAP_AFTER_INIT NonnullRefPtr<IDEController> IDEController::initialize(PCI::Address address, bool force_pio)
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{
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return adopt(*new IDEController(address, force_pio));
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}
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bool IDEController::reset()
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{
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TODO();
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}
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bool IDEController::shutdown()
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{
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TODO();
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}
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size_t IDEController::devices_count() const
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{
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size_t count = 0;
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for (u32 index = 0; index < 4; index++) {
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if (!device(index).is_null())
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count++;
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}
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return count;
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}
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void IDEController::start_request(const StorageDevice&, AsyncBlockDeviceRequest&)
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{
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VERIFY_NOT_REACHED();
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}
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void IDEController::complete_current_request(AsyncDeviceRequest::RequestResult)
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{
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VERIFY_NOT_REACHED();
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}
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UNMAP_AFTER_INIT IDEController::IDEController(PCI::Address address, bool force_pio)
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: StorageController()
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, PCI::DeviceController(address)
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{
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initialize(force_pio);
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}
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UNMAP_AFTER_INIT IDEController::~IDEController()
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{
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}
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UNMAP_AFTER_INIT void IDEController::initialize(bool force_pio)
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{
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auto bus_master_base = IOAddress(PCI::get_BAR4(pci_address()) & (~1));
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auto bar0 = PCI::get_BAR0(pci_address());
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auto base_io = (bar0 == 0x1 || bar0 == 0) ? IOAddress(0x1F0) : IOAddress(bar0);
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auto bar1 = PCI::get_BAR1(pci_address());
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auto control_io = (bar1 == 0x1 || bar1 == 0) ? IOAddress(0x3F6) : IOAddress(bar1);
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m_channels.append(IDEChannel::create(*this, { base_io, control_io, bus_master_base }, IDEChannel::ChannelType::Primary, force_pio));
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auto bar2 = PCI::get_BAR2(pci_address());
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base_io = (bar2 == 0x1 || bar2 == 0) ? IOAddress(0x170) : IOAddress(bar2);
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auto bar3 = PCI::get_BAR3(pci_address());
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control_io = (bar3 == 0x1 || bar3 == 0) ? IOAddress(0x376) : IOAddress(bar3);
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m_channels.append(IDEChannel::create(*this, { base_io, control_io, bus_master_base.offset(8) }, IDEChannel::ChannelType::Secondary, force_pio));
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}
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RefPtr<StorageDevice> IDEController::device_by_channel_and_position(u32 index) const
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{
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switch (index) {
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case 0:
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return m_channels[0].master_device();
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case 1:
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return m_channels[0].slave_device();
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case 2:
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return m_channels[1].master_device();
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case 3:
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return m_channels[1].slave_device();
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}
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VERIFY_NOT_REACHED();
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}
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RefPtr<StorageDevice> IDEController::device(u32 index) const
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{
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NonnullRefPtrVector<StorageDevice> connected_devices;
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for (size_t index = 0; index < 4; index++) {
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auto checked_device = device_by_channel_and_position(index);
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if (checked_device.is_null())
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continue;
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connected_devices.append(checked_device.release_nonnull());
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}
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if (index >= connected_devices.size())
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return nullptr;
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return connected_devices[index];
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}
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}
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