mirror of
https://github.com/RGBCube/serenity
synced 2025-07-10 06:07:35 +00:00
Kernel: Add the DeviceController class in the PCI subsystem
Such device is not an IRQHandler by itself, but actually a controller of many IRQ or MSI devices. The purpose of this class is to manage multiple sources of interrupts. For example, a generic ISA IDE controller controls 2 IRQ sources - 14 and 15. So, when we initialize the IDE controller, it will initialize two IDE channels (also known as PATAChannels) to utilize IRQ 14 and 15, respectively. NVMe with MSI-X support can theoretically handle up to 2048 interrupts.
This commit is contained in:
parent
f1d7d864ae
commit
9d10eb473d
4 changed files with 86 additions and 0 deletions
|
@ -83,6 +83,7 @@ set(KERNEL_SOURCES
|
||||||
Net/UDPSocket.cpp
|
Net/UDPSocket.cpp
|
||||||
PCI/Access.cpp
|
PCI/Access.cpp
|
||||||
PCI/Device.cpp
|
PCI/Device.cpp
|
||||||
|
PCI/DeviceController.cpp
|
||||||
PCI/IOAccess.cpp
|
PCI/IOAccess.cpp
|
||||||
PCI/Initializer.cpp
|
PCI/Initializer.cpp
|
||||||
PCI/MMIOAccess.cpp
|
PCI/MMIOAccess.cpp
|
||||||
|
|
|
@ -28,6 +28,7 @@
|
||||||
|
|
||||||
#include <AK/Function.h>
|
#include <AK/Function.h>
|
||||||
#include <AK/LogStream.h>
|
#include <AK/LogStream.h>
|
||||||
|
#include <AK/String.h>
|
||||||
#include <AK/Types.h>
|
#include <AK/Types.h>
|
||||||
|
|
||||||
namespace Kernel {
|
namespace Kernel {
|
||||||
|
@ -221,6 +222,7 @@ class Access;
|
||||||
class MMIOAccess;
|
class MMIOAccess;
|
||||||
class IOAccess;
|
class IOAccess;
|
||||||
class MMIOSegment;
|
class MMIOSegment;
|
||||||
|
class DeviceController;
|
||||||
class Device;
|
class Device;
|
||||||
|
|
||||||
}
|
}
|
||||||
|
|
38
Kernel/PCI/DeviceController.cpp
Normal file
38
Kernel/PCI/DeviceController.cpp
Normal file
|
@ -0,0 +1,38 @@
|
||||||
|
/*
|
||||||
|
* Copyright (c) 2020, Liav A. <liavalb@hotmail.co.il>
|
||||||
|
* All rights reserved.
|
||||||
|
*
|
||||||
|
* Redistribution and use in source and binary forms, with or without
|
||||||
|
* modification, are permitted provided that the following conditions are met:
|
||||||
|
*
|
||||||
|
* 1. Redistributions of source code must retain the above copyright notice, this
|
||||||
|
* list of conditions and the following disclaimer.
|
||||||
|
*
|
||||||
|
* 2. Redistributions in binary form must reproduce the above copyright notice,
|
||||||
|
* this list of conditions and the following disclaimer in the documentation
|
||||||
|
* and/or other materials provided with the distribution.
|
||||||
|
*
|
||||||
|
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
|
||||||
|
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
||||||
|
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
|
||||||
|
* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
|
||||||
|
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
||||||
|
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
|
||||||
|
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
|
||||||
|
* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
|
||||||
|
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
|
||||||
|
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
|
||||||
|
*/
|
||||||
|
|
||||||
|
#include <Kernel/PCI/DeviceController.h>
|
||||||
|
|
||||||
|
namespace Kernel {
|
||||||
|
namespace PCI {
|
||||||
|
|
||||||
|
DeviceController::DeviceController(Address address)
|
||||||
|
: m_pci_address(address)
|
||||||
|
{
|
||||||
|
}
|
||||||
|
|
||||||
|
}
|
||||||
|
}
|
45
Kernel/PCI/DeviceController.h
Normal file
45
Kernel/PCI/DeviceController.h
Normal file
|
@ -0,0 +1,45 @@
|
||||||
|
/*
|
||||||
|
* Copyright (c) 2020, Liav A. <liavalb@hotmail.co.il>
|
||||||
|
* All rights reserved.
|
||||||
|
*
|
||||||
|
* Redistribution and use in source and binary forms, with or without
|
||||||
|
* modification, are permitted provided that the following conditions are met:
|
||||||
|
*
|
||||||
|
* 1. Redistributions of source code must retain the above copyright notice, this
|
||||||
|
* list of conditions and the following disclaimer.
|
||||||
|
*
|
||||||
|
* 2. Redistributions in binary form must reproduce the above copyright notice,
|
||||||
|
* this list of conditions and the following disclaimer in the documentation
|
||||||
|
* and/or other materials provided with the distribution.
|
||||||
|
*
|
||||||
|
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
|
||||||
|
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
||||||
|
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
|
||||||
|
* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
|
||||||
|
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
||||||
|
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
|
||||||
|
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
|
||||||
|
* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
|
||||||
|
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
|
||||||
|
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
|
||||||
|
*/
|
||||||
|
|
||||||
|
#pragma once
|
||||||
|
|
||||||
|
#include <AK/Types.h>
|
||||||
|
#include <Kernel/PCI/Definitions.h>
|
||||||
|
|
||||||
|
namespace Kernel {
|
||||||
|
class PCI::DeviceController {
|
||||||
|
public:
|
||||||
|
Address pci_address() const { return m_pci_address; };
|
||||||
|
|
||||||
|
virtual ~DeviceController() { }
|
||||||
|
|
||||||
|
protected:
|
||||||
|
explicit DeviceController(Address pci_address);
|
||||||
|
|
||||||
|
private:
|
||||||
|
Address m_pci_address;
|
||||||
|
};
|
||||||
|
}
|
Loading…
Add table
Add a link
Reference in a new issue