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https://github.com/RGBCube/serenity
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Kernel/SysFS: Adapt USB plug code to work with SysFS patterns
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parent
70afa0b171
commit
cdab213750
6 changed files with 36 additions and 47 deletions
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@ -10,44 +10,27 @@
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namespace Kernel {
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static SysFSUSBBusDirectory* s_procfs_usb_bus_directory;
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static SysFSUSBBusDirectory* s_sysfs_usb_bus_directory;
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RefPtr<SysFSUSBDeviceInformation> SysFSUSBBusDirectory::device_node_for(USB::Device& device)
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void SysFSUSBBusDirectory::plug(Badge<USB::Hub>, SysFSUSBDeviceInformation& new_device_info_node)
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{
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RefPtr<USB::Device> checked_device = device;
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for (auto& device_node : m_device_nodes) {
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if (device_node.device().ptr() == checked_device.ptr())
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return device_node;
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}
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return {};
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MUST(m_child_components.with([&](auto& list) -> ErrorOr<void> {
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list.append(new_device_info_node);
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return {};
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}));
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}
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void SysFSUSBBusDirectory::plug(USB::Device& new_device)
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void SysFSUSBBusDirectory::unplug(Badge<USB::Hub>, SysFSUSBDeviceInformation& removed_device_info_node)
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{
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SpinlockLocker lock(m_lock);
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auto device_node = device_node_for(new_device);
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VERIFY(!device_node);
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auto sysfs_usb_device_or_error = SysFSUSBDeviceInformation::create(new_device);
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if (sysfs_usb_device_or_error.is_error()) {
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dbgln("Failed to create SysFSUSBDevice for device id {}", new_device.address());
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return;
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}
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m_device_nodes.append(sysfs_usb_device_or_error.release_value());
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}
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void SysFSUSBBusDirectory::unplug(USB::Device& deleted_device)
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{
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SpinlockLocker lock(m_lock);
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auto device_node = device_node_for(deleted_device);
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VERIFY(device_node);
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device_node->m_list_node.remove();
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MUST(m_child_components.with([&](auto& list) -> ErrorOr<void> {
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list.remove(removed_device_info_node);
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return {};
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}));
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}
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SysFSUSBBusDirectory& SysFSUSBBusDirectory::the()
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{
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VERIFY(s_procfs_usb_bus_directory);
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return *s_procfs_usb_bus_directory;
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VERIFY(s_sysfs_usb_bus_directory);
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return *s_sysfs_usb_bus_directory;
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}
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UNMAP_AFTER_INIT SysFSUSBBusDirectory::SysFSUSBBusDirectory(SysFSBusDirectory& buses_directory)
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@ -59,7 +42,7 @@ UNMAP_AFTER_INIT void SysFSUSBBusDirectory::initialize()
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{
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auto directory = adopt_ref(*new SysFSUSBBusDirectory(SysFSComponentRegistry::the().buses_directory()));
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SysFSComponentRegistry::the().register_new_bus_directory(directory);
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s_procfs_usb_bus_directory = directory;
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s_sysfs_usb_bus_directory = directory;
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}
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ErrorOr<NonnullRefPtr<SysFSUSBDeviceInformation>> SysFSUSBDeviceInformation::create(USB::Device& device)
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