ladybird/Kernel/Bus/PCI/Initializer.h

/*
 * Copyright (c) 2020, Liav A. <liavalb@hotmail.co.il>
 *
 * SPDX-License-Identifier: BSD-2-Clause
 */

#pragma once

namespace Kernel::PCI {

extern bool g_pci_access_io_probe_failed;
extern bool g_pci_access_is_disabled_from_commandline;

void initialize();

}
Meta: Add license header to source files As suggested by Joshua, this commit adds the 2-clause BSD license as a comment block to the top of every source file. For the first pass, I've just added myself for simplicity. I encourage everyone to add themselves as copyright holders of any file they've added or modified in some significant way. If I've added myself in error somewhere, feel free to replace it with the appropriate copyright holder instead. Going forward, all new source files should include a license header. 2020-01-18 11:38:21 +03:00			`/*`
Meta: Claim copyright on `PCI` files 2020-03-06 17:59:29 +03:00			`* Copyright (c) 2020, Liav A. <liavalb@hotmail.co.il>`
Meta: Add license header to source files As suggested by Joshua, this commit adds the 2-clause BSD license as a comment block to the top of every source file. For the first pass, I've just added myself for simplicity. I encourage everyone to add themselves as copyright holders of any file they've added or modified in some significant way. If I've added myself in error somewhere, feel free to replace it with the appropriate copyright holder instead. Going forward, all new source files should include a license header. 2020-01-18 11:38:21 +03:00			`*`
Everything: Move to SPDX license identifiers in all files. SPDX License Identifiers are a more compact / standardized way of representing file license information. See: https://spdx.dev/resources/use/#identifiers This was done with the `ambr` search and replace tool. ambr --no-parent-ignore --key-from-file --rep-from-file key.txt rep.txt * 2021-04-22 11:24:48 +03:00			`* SPDX-License-Identifier: BSD-2-Clause`
Meta: Add license header to source files As suggested by Joshua, this commit adds the 2-clause BSD license as a comment block to the top of every source file. For the first pass, I've just added myself for simplicity. I encourage everyone to add themselves as copyright holders of any file they've added or modified in some significant way. If I've added myself in error somewhere, feel free to replace it with the appropriate copyright holder instead. Going forward, all new source files should include a license header. 2020-01-18 11:38:21 +03:00			`*/`

Kernel: Create support for PCI ECAM The new PCI subsystem is initialized during runtime. PCI::Initializer is supposed to be called during early boot, to perform a few tests, and initialize the proper configuration space access mechanism. Kernel boot parameters can be specified by a user to determine what tests will occur, to aid debugging on problematic machines. After that, PCI::Initializer should be dismissed. PCI::IOAccess is a class that is derived from PCI::Access class and implements PCI configuration space access mechanism via x86 IO ports. PCI::MMIOAccess is a class that is derived from PCI::Access and implements PCI configurtaion space access mechanism via memory access. The new PCI subsystem also supports determination of IO/MMIO space needed by a device by checking a given BAR. In addition, Every device or component that use the PCI subsystem has changed to match the last changes. 2019-12-31 14:04:30 +03:00			`#pragma once`

Kernel: Use C++17 namespace style for nested PCI namespace Adjust the nested namespace formatting in PCI files to use the nicer and more consistent C++17 style. 2022-04-25 17:32:09 +03:00			`namespace Kernel::PCI {`
Kernel: Move all code into the Kernel namespace 2020-02-16 03:27:42 +03:00
Kernel/PCI: Unify disable checks under PCI::Access::is_disabled method To declare that we don't have a PCI bus in the system we do two things: 1. Probe IO ports before enabling access - In case we are using the QEMU ISA-PC machine type, IO probing results in floating bus condition (returning 0xFF values), thus, we know we don't have PCI bus on the system. 2. Allow the user to specify to not use the PCI bus at all in the kernel commandline. 2022-01-21 18:06:39 +03:00			`extern bool g_pci_access_io_probe_failed;`
			`extern bool g_pci_access_is_disabled_from_commandline;`

Kernel: Simplify PCI initialization logic - Get rid of the PCI::Initializer object which was not serving any real purpose or holding any data members. - Move command line parsing from init to PCI::initialize(). 2020-04-08 18:39:17 +03:00			`void initialize();`
Kernel: Move all code into the Kernel namespace 2020-02-16 03:27:42 +03:00
			`}`