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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
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() UNMAP_AFTER_INIT void USBManagement::enumerate_controllers()
{ {
if (!kernel_command_line().disable_usb()) { if (kernel_command_line().disable_usb())
PCI::enumerate([this](PCI::Address const& address, PCI::ID) { return;
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 (auto uhci_controller_or_error = UHCIController::try_to_initialize(address); !uhci_controller_or_error.is_error()) PCI::enumerate([this](PCI::Address const& address, PCI::ID) {
m_controllers.append(uhci_controller_or_error.release_value()); 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) { return;
dmesgln("USBManagement: OHCI controller found at {} is not currently supported.", address); }
return;
}
if (PCI::get_programming_interface(address) == 0x20) { if (PCI::get_programming_interface(address) == 0x10) {
dmesgln("USBManagement: EHCI controller found at {} is not currently supported.", address); dmesgln("USBManagement: OHCI controller found at {} is not currently supported.", address);
return; return;
} }
if (PCI::get_programming_interface(address) == 0x30) { if (PCI::get_programming_interface(address) == 0x20) {
dmesgln("USBManagement: xHCI controller found at {} is not currently supported.", address); dmesgln("USBManagement: EHCI controller found at {} is not currently supported.", address);
return; 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() bool USBManagement::initialized()