| // Copyright 2019 The Fuchsia Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| #ifndef SRC_DEVICES_USB_DRIVERS_XHCI_XHCI_ENUMERATION_H_ |
| #define SRC_DEVICES_USB_DRIVERS_XHCI_XHCI_ENUMERATION_H_ |
| |
| #include "xhci-context.h" |
| |
| // Helper functions to assist with setup and teardown of USB devices. |
| |
| namespace usb_xhci { |
| |
| class UsbXhci; |
| |
| // Enumerates a device as specified in xHCI section 4.3 starting from step 4 |
| // This method should be called once the physical port of a device has been |
| // initialized. |
| // Control TRBs must be run on the primary interrupter. Section 4.9.4.3: secondary interrupters |
| // cannot handle them.. |
| TRBPromise EnumerateDevice(UsbXhci* hci, uint8_t port, std::optional<HubInfo> hub_info); |
| |
| // Retrieves the bMaxPacketSize0 field in the USB device descriptor |
| fpromise::promise<uint8_t, zx_status_t> GetMaxPacketSize(UsbXhci* hci, uint8_t slot_id); |
| } // namespace usb_xhci |
| |
| #endif // SRC_DEVICES_USB_DRIVERS_XHCI_XHCI_ENUMERATION_H_ |
