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Kernel/USB: Tighten up USBManagement enumeration code a bit

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Liav A 2021-08-09 23:16:24 +03:00 committed by Andreas Kling
parent 1479ee3f3e
commit d16d116b65
Notes: sideshowbarker 2024-07-18 07:10:42 +09:00 
Author: https://github.com/supercomputer7
Commit: https://github.com/SerenityOS/serenity/commit/d16d116b65b
Pull-request: https://github.com/SerenityOS/serenity/pull/9313
1 changed files with 27 additions and 26 deletions
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53
Kernel/Bus/USB/USBManagement.cpp
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@ -22,38 +22,39 @@ UNMAP_AFTER_INIT USBManagement::USBManagement()
UNMAP_AFTER_INIT void USBManagement::enumerate_controllers()
{
if (!kernel_command_line().disable_usb()) {
PCI::enumerate([this](PCI::Address const& address, PCI::ID) {
if (PCI::get_class(address) == 0xc && PCI::get_subclass(address) == 0x3) {
if (PCI::get_programming_interface(address) == 0x0) {
if (kernel_command_line().disable_uhci_controller())
return;
if (kernel_command_line().disable_usb())
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());
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;
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());
if (PCI::get_programming_interface(address) == 0x10) {
dmesgln("USBManagement: OHCI controller found at {} is not currently supported.", address);
return;
}
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) == 0x10) {
dmesgln("USBManagement: OHCI 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;
}
if (PCI::get_programming_interface(address) == 0x20) {
dmesgln("USBManagement: EHCI 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));
}
});
}
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()