mirror of
https://github.com/RGBCube/serenity
synced 2025-05-20 23:25:07 +00:00
4abf399a74
The number of UHCI related files is starting to expand to the point where it's best if we move this into their own subdirectory. It'll also make it easier to manage when we decide to add some more controller types (whenever that may be)
82 lines
2.3 KiB
C++
82 lines
2.3 KiB
C++
/*
|
|
* Copyright (c) 2021, Luke Wilde <lukew@serenityos.org>
|
|
*
|
|
* SPDX-License-Identifier: BSD-2-Clause
|
|
*/
|
|
|
|
#include <AK/Singleton.h>
|
|
#include <Kernel/Bus/PCI/Access.h>
|
|
#include <Kernel/Bus/USB/SysFSUSB.h>
|
|
#include <Kernel/Bus/USB/UHCI/UHCIController.h>
|
|
#include <Kernel/Bus/USB/USBManagement.h>
|
|
#include <Kernel/CommandLine.h>
|
|
#include <Kernel/Sections.h>
|
|
|
|
namespace Kernel::USB {
|
|
|
|
static Singleton<USBManagement> s_the;
|
|
READONLY_AFTER_INIT bool s_initialized_sys_fs_directory = false;
|
|
|
|
UNMAP_AFTER_INIT USBManagement::USBManagement()
|
|
{
|
|
enumerate_controllers();
|
|
}
|
|
|
|
UNMAP_AFTER_INIT void USBManagement::enumerate_controllers()
|
|
{
|
|
if (kernel_command_line().disable_usb())
|
|
return;
|
|
|
|
PCI::enumerate([this](PCI::Address const& address, PCI::ID) {
|
|
if (!(PCI::get_class(address) == 0xc && PCI::get_subclass(address) == 0x3))
|
|
return;
|
|
if (PCI::get_programming_interface(address) == 0x0) {
|
|
if (kernel_command_line().disable_uhci_controller())
|
|
return;
|
|
|
|
if (auto uhci_controller_or_error = UHCIController::try_to_initialize(address); !uhci_controller_or_error.is_error())
|
|
m_controllers.append(uhci_controller_or_error.release_value());
|
|
|
|
return;
|
|
}
|
|
|
|
if (PCI::get_programming_interface(address) == 0x10) {
|
|
dmesgln("USBManagement: OHCI controller found at {} is not currently supported.", address);
|
|
return;
|
|
}
|
|
|
|
if (PCI::get_programming_interface(address) == 0x20) {
|
|
dmesgln("USBManagement: EHCI controller found at {} is not currently supported.", address);
|
|
return;
|
|
}
|
|
|
|
if (PCI::get_programming_interface(address) == 0x30) {
|
|
dmesgln("USBManagement: xHCI controller found at {} is not currently supported.", address);
|
|
return;
|
|
}
|
|
|
|
dmesgln("USBManagement: Unknown/unsupported controller at {} with programming interface 0x{:02x}", address, PCI::get_programming_interface(address));
|
|
});
|
|
}
|
|
|
|
bool USBManagement::initialized()
|
|
{
|
|
return s_the.is_initialized();
|
|
}
|
|
|
|
UNMAP_AFTER_INIT void USBManagement::initialize()
|
|
{
|
|
if (!s_initialized_sys_fs_directory) {
|
|
USB::SysFSUSBBusDirectory::initialize();
|
|
s_initialized_sys_fs_directory = true;
|
|
}
|
|
|
|
s_the.ensure_instance();
|
|
}
|
|
|
|
USBManagement& USBManagement::the()
|
|
{
|
|
return *s_the;
|
|
}
|
|
|
|
}
|