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- // Copyright 2014 The Chromium 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 SERVICES_DEVICE_USB_USB_DESCRIPTORS_H_
- #define SERVICES_DEVICE_USB_USB_DESCRIPTORS_H_
- #include <stdint.h>
- #include <map>
- #include <memory>
- #include <string>
- #include <vector>
- #include "base/callback_forward.h"
- #include "base/memory/ref_counted.h"
- #include "services/device/public/mojom/usb_device.mojom.h"
- namespace device {
- class UsbDeviceHandle;
- struct CombinedInterfaceInfo {
- CombinedInterfaceInfo() = default;
- CombinedInterfaceInfo(const mojom::UsbInterfaceInfo* interface,
- const mojom::UsbAlternateInterfaceInfo* alternate);
- bool IsValid() const;
- const mojom::UsbInterfaceInfo* interface = nullptr;
- const mojom::UsbAlternateInterfaceInfo* alternate = nullptr;
- };
- struct UsbDeviceDescriptor {
- UsbDeviceDescriptor();
- UsbDeviceDescriptor(const UsbDeviceDescriptor& other) = delete;
- ~UsbDeviceDescriptor();
- // Parses |buffer| for USB descriptors. Any configuration descriptors found
- // will be added to |configurations|. If a device descriptor is found it will
- // be used to populate this struct's fields. This function may be called more
- // than once (i.e. for multiple buffers containing a configuration descriptor
- // each).
- bool Parse(base::span<const uint8_t> buffer);
- uint8_t i_manufacturer = 0;
- uint8_t i_product = 0;
- uint8_t i_serial_number = 0;
- uint8_t num_configurations = 0;
- mojom::UsbDeviceInfoPtr device_info;
- };
- void ReadUsbDescriptors(
- scoped_refptr<UsbDeviceHandle> device_handle,
- base::OnceCallback<void(std::unique_ptr<UsbDeviceDescriptor>)> callback);
- bool ParseUsbStringDescriptor(const std::vector<uint8_t>& descriptor,
- std::u16string* output);
- void ReadUsbStringDescriptors(
- scoped_refptr<UsbDeviceHandle> device_handle,
- std::unique_ptr<std::map<uint8_t, std::u16string>> index_map,
- base::OnceCallback<void(std::unique_ptr<std::map<uint8_t, std::u16string>>)>
- callback);
- mojom::UsbEndpointInfoPtr BuildUsbEndpointInfoPtr(const uint8_t* data);
- mojom::UsbEndpointInfoPtr BuildUsbEndpointInfoPtr(uint8_t address,
- uint8_t attributes,
- uint16_t maximum_packet_size,
- uint8_t polling_interval);
- mojom::UsbInterfaceInfoPtr BuildUsbInterfaceInfoPtr(const uint8_t* data);
- mojom::UsbInterfaceInfoPtr BuildUsbInterfaceInfoPtr(uint8_t interface_number,
- uint8_t alternate_setting,
- uint8_t interface_class,
- uint8_t interface_subclass,
- uint8_t interface_protocol);
- void AggregateInterfacesForConfig(mojom::UsbConfigurationInfo* config);
- CombinedInterfaceInfo FindInterfaceInfoFromConfig(
- const mojom::UsbConfigurationInfo* config,
- uint8_t interface_number,
- uint8_t alternate_setting);
- mojom::UsbConfigurationInfoPtr BuildUsbConfigurationInfoPtr(
- const uint8_t* data);
- mojom::UsbConfigurationInfoPtr BuildUsbConfigurationInfoPtr(
- uint8_t configuration_value,
- bool self_powered,
- bool remote_wakeup,
- uint8_t maximum_power);
- void AssignFirstInterfaceNumbers(mojom::UsbConfigurationInfo* config);
- } // namespace device
- #endif // SERVICES_DEVICE_USB_USB_DESCRIPTORS_H_
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