RGBCube/serenity
1
Fork 0
mirror of https://github.com/RGBCube/serenity synced 2025-07-27 00:27:45 +00:00
Code Issues Activity Actions

Kernel/Storage: Don't try to enumerate PCI adapters if PCI is disabled

Browse source 
If there's no PCI bus, then it's safe to assume that we run on a x86
machine that has an ISA IDE controller in the system. In such case, we
just instantiate a ISAIDEController object that assumes fixed locations
of IDE IO ports.
This commit is contained in:
Liav A 2022-01-21 16:18:31 +02:00 • committed by Andreas Kling
parent fafa339264
commit 30eeba1981
11 changed files with 283 additions and 142 deletions
Download patch file Download diff file Expand all files Collapse all files

41
Kernel/Storage/ATA/PCIIDEController.h Normal file
View file

@ -0,0 +1,41 @@
/*
* Copyright (c) 2020-2022, Liav A. <liavalb@hotmail.co.il>
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#pragma once
#include <AK/OwnPtr.h>
#include <AK/RefPtr.h>
#include <AK/Types.h>
#include <Kernel/Storage/ATA/IDEChannel.h>
#include <Kernel/Storage/ATA/IDEController.h>
#include <Kernel/Storage/StorageDevice.h>
namespace Kernel {
class AsyncBlockDeviceRequest;
class PCIIDEController final : public IDEController
, public PCI::Device {
public:
static NonnullRefPtr<PCIIDEController> initialize(PCI::DeviceIdentifier const&, bool force_pio);
bool is_bus_master_capable() const;
bool is_pci_native_mode_enabled() const;
private:
bool is_pci_native_mode_enabled_on_primary_channel() const;
bool is_pci_native_mode_enabled_on_secondary_channel() const;
PCIIDEController(PCI::DeviceIdentifier const&, bool force_pio);
RefPtr<StorageDevice> device_by_channel_and_position(u32 index) const;
void initialize(bool force_pio);
void detect_disks();
// FIXME: Find a better way to get the ProgrammingInterface
PCI::ProgrammingInterface m_prog_if;
PCI::InterruptLine m_interrupt_line;
};
}