6dd4009c创建于 2025年1月16日历史提交
/*
 * Copyright (c) 2025 Huawei Device Co., Ltd.
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

/* *
 * @addtogroup HdiUsb
 * @{
 *
 * @brief Provides unified APIs for usb services to access usb drivers.
 *
 * A usb service can obtain a usb driver object or agent and then call APIs provided by this object or agent to
 * access different types of usb devices based on the usb IDs, thereby obtaining usb information,
 * subscribing to or unsubscribing from usb data, enabling or disabling a usb,
 * setting the usb data reporting mode, and setting usb options such as the accuracy and measurement range.
 *
 * @since 5.1
 * @version 1.0
 */

/* *
 * @file IUsbHostInterface.idl
 *
 * @brief Declares the APIs provided by the usb module for obtaining usb information, subscribing to or
 * unsubscribing from usb data, enabling or disabling a usb, setting the usb data reporting mode,
 * and setting usb options such as the accuracy and measurement range.
 *
 * @since 5.1
 * @version 1.0
 */

package ohos.hdi.usb.v2_0;

import ohos.hdi.usb.v2_0.UsbTypes;
import ohos.hdi.usb.v2_0.IUsbdSubscriber;
import ohos.hdi.usb.v2_0.IUsbdBulkCallback;
import ohos.hdi.usb.v2_0.IUsbdTransferCallback;

/* *
 * @brief Defines the functions for performing basic operations on usb.
 *
 * The operations include obtaining usb information, subscribing to or unsubscribing from usb data,
 * enabling or disabling a usb, setting the usb data reporting mode, and setting usb options such as
 * the accuracy and measurement range.
 */
interface IUsbHostInterface {

    /* *
     * @brief Opens a USB device to set up a connection.
     *
     * @param dev Indicates the USB device address.
     *
     * @return Returns <b>0</b> if the operation is successful; returns a non-0 value if the operation fails.
     * @since 5.1
     * @version 1.0
     */
    OpenDevice([in] struct UsbDev dev);

    /* *
     * @brief Closes a USB device to release all system resources related to the device.
     *
     * @param dev Indicates the USB device address.
     *
     * @return Returns <b>0</b> if the operation is successful; returns a non-0 value if the operation fails.
     * @since 5.1
     * @version 1.0
     */
    CloseDevice([in] struct UsbDev dev);

    /* *
     * @brief Reset device.
     *
     * @param dev Indicates the USB device address.
     *
     * @return Returns <b>0</b> if the operation is successful; returns a non-0 value if the operation fails.
     * @since 5.1
     * @version 1.0
     */
    ResetDevice([in] struct UsbDev dev);

    /* *
     * @brief Claims a USB interface exclusively. This must be done before data transfer.
     *
     * @param dev Indicates the USB device address.
     * @param interfaceid Indicates the interface ID of the USB device.
     * @param force Indicates whether to enable the force mode. The value <b>1</b> indicates that the force mode is
     * enabled, and value <b>0</b> indicates the opposite.
     *
     * @return Returns <b>0</b> if the operation is successful; returns a non-0 value if the operation fails.
     * @since 5.1
     * @version 1.0
     */
    ClaimInterface([in] struct UsbDev dev, [in] unsigned char interfaceid, [in] unsigned char force);

    /* *
     * @brief Sets the alternate settings for the specified USB interface. This allows you to switch between two
     * interfaces with the same ID but different alternate settings.
     *
     * @param dev Indicates the USB device address.
     * @param interfaceid Indicates the interface ID of the USB device.
     * @param altIndex Indicates the alternate settings of the USB interface.
     *
     * @return Returns <b>0</b> if the operation is successful; returns a non-0 value if the operation fails.
     * @since 5.1
     * @version 1.0
     */
    SetInterface([in] struct UsbDev dev, [in] unsigned char interfaceid, [in] unsigned char altIndex);

    /* *
     * @brief Releases a USB interface. This is usually done after data transfer.
     *
     * @param dev Indicates the USB device address.
     * @param interfaceid Indicates the interface ID of the USB device.
     *
     * @return Returns <b>0</b> if the operation is successful; returns a non-0 value if the operation fails.
     * @since 5.1
     * @version 1.0
     */
    ReleaseInterface([in] struct UsbDev dev, [in] unsigned char interfaceid);

    /* *
     * @brief Sets the configuration information of a USB device.
     *
     * @param dev Indicates the USB device address.
     * @param configIndex Indicates the configuration information of the USB device.
     *
     * @return Returns <b>0</b> if the operation is successful; returns a non-0 value if the operation fails.
     * @since 5.1
     * @version 1.0
     */
    SetConfig([in] struct UsbDev dev, [in] unsigned char configIndex);

    /* *
     * @brief Manage a USB interface exclusively. Detach or attach the interface.
     *
     * @param dev Indicates the USB device address.
     * @param interfaceid Indicates the interface ID of the USB device.
     * @param disable Indicates whether to disable the interface.
     *
     * @return Returns <b>0</b> if the operation is successful; returns a non-0 value if the operation fails.
     * @since 5.1
     * @version 1.0
     */
    ManageInterface([in] struct UsbDev dev, [in] unsigned char interfaceid, [in] boolean disable);

    /* *
     * @brief Clear the halt status for an endpoint.
     *
     * @param dev Indicates the USB device address.
     * @param pipe Indicates the pipe of the USB device.
     *
     * @return Returns <b>0</b> if the operation is successful; returns a non-0 value if the operation fails.
     * @since 5.1
     * @version 1.0
     */
    ClearHalt([in] struct UsbDev dev, [in] struct UsbPipe pipe);

    /* *
     * @brief Obtains USB device speed.
     *
     * @param dev Indicates the USB device address.
     * @param speed Indicates the USB device speed.
     *
     * @return Returns <b>0</b> if the operation is successful; returns a non-0 value if the operation fails.
     * @since 5.1
     * @version 1.0
     */
    GetDeviceSpeed([in] struct UsbDev dev, [out] unsigned char speed);

    /* *
     * @brief Obtains the file descriptor.
     *
     * @param dev Indicates the USB device address.
     * @param fd USB device file descriptor
     *
     * @return Returns <b>0</b> if the operation is successful; returns a non-0 value if the operation fails.
     * @since 5.1
     * @version 1.0
     */
    GetDeviceFileDescriptor([in] struct UsbDev dev, [out] FileDescriptor fd);

    /* *
     * @brief Obtains the string descriptor of a USB device based on the specified string ID.
     *
     * @param dev Indicates the USB device address.
     * @param descId Indicates string descriptor ID.
     * @param descriptor Indicates the configuration descriptor of the USB device.
     *
     * @return Returns <b>0</b> if the operation is successful; returns a non-0 value if the operation fails.
     * @since 5.1
     * @version 1.0
     */
    GetStringDescriptor([in] struct UsbDev dev, [in] unsigned char descId, [out] unsigned char[] descriptor);

    /* *
     * @brief Obtains the raw descriptor.
     *
     * @param dev Indicates the USB device address.
     * @param descriptor Indicates the raw descriptor of the USB device.
     *
     * @return Returns <b>0</b> if the operation is successful; returns a non-0 value if the operation fails.
     * @since 5.1
     * @version 1.0
     */
    GetRawDescriptor([in] struct UsbDev dev, [out] unsigned char[] descriptor);

    /* *
     * @brief Obtains the configuration information of a USB device.
     *
     * @param dev Indicates the USB device address.
     * @param configIndex Indicates the configuration information of the USB device.
     *
     * @return Returns <b>0</b> if the operation is successful; returns a non-0 value if the operation fails.
     * @since 5.1
     * @version 1.0
     */
    GetConfig([in] struct UsbDev dev, [out] unsigned char configIndex);

    /* *
     * @brief Obtain the activation information of the USB device interface.
     *
     * @param dev Indicates the USB device address.
     * @param interfaceid Indicates the interface ID of the USB device.
     * @param unactivated Indicates whether the interface unactivated.
     *
     * @return Returns <b>0</b> if the operation is successful; returns a non-0 value if the operation fails.
     * @since 5.1
     * @version 1.0
     */
    GetInterfaceActiveStatus([in] struct UsbDev dev, [in] unsigned char interfaceid, [out] boolean unactivated );

    /* *
     * @brief Obtains the USB device descriptor.
     *
     * @param dev Indicates the USB device address.
     * @param descriptor Indicates the USB device descriptor.
     *
     * @return Returns <b>0</b> if the operation is successful; returns a non-0 value if the operation fails.
     * @since 5.1
     * @version 1.0
     */
    GetDeviceDescriptor([in] struct UsbDev dev, [out] unsigned char[] descriptor);

    /* *
     * @brief Obtains the configuration descriptor of a USB device based on the specified config ID.
     *
     * @param dev Indicates the USB device address.
     * @param descId Indicates configuration descriptor ID.
     * @param descriptor Indicates the configuration descriptor of the USB device.
     *
     * @return Returns <b>0</b> if the operation is successful; returns a non-0 value if the operation fails.
     * @since 5.1
     * @version 1.0
     */
    GetConfigDescriptor([in] struct UsbDev dev, [in] unsigned char descId, [out] unsigned char[] descriptor);

    /* *
     * @brief Obtains the file descriptor.
     *
     * @param dev Indicates the USB device address.
     * @param fd USB device file descriptor
     *
     * @return Returns <b>0</b> if the operation is successful; returns a non-0 value if the operation fails.
     * @since 5.1
     * @version 1.0
     * @deprecated since 5.1
     * @useinstead ohos.hdi.usb.v2_0.IUsbInterface.GetDeviceFileDescriptor
     */
    GetFileDescriptor([in] struct UsbDev dev, [out] int fd);

    /* *
     * @brief Sends or receives requests for isochronous transfer on a specified endpoint. The data transfer direction
     * is determined by the endpoint direction.
     *
     * @param dev Indicates the USB device address.
     * @param pipe Indicates the pipe of the USB device.
     * @param clientData Indicates the client data.
     * @param buffer Indicates the transferred data.
     *
     * @return Returns <b>0</b> if the operation is successful; returns a non-0 value if the operation fails.
     * @since 5.1
     * @version 1.0
     */
    RequestQueue([in] struct UsbDev dev, [in] struct UsbPipe pipe, [in] unsigned char[] clientData, [in] unsigned char[] buffer);

    /* *
     * @brief Waits for the operation result of the isochronous transfer request in <b>RequestQueue</b>.
     *
     * @param dev Indicates the USB device address.
     * @param clientData Indicates the client data.
     * @param buffer Indicates the transferred data.
     * @param timeout Indicates the timeout duration.
     *
     * @return Returns <b>0</b> if the operation is successful; returns a non-0 value if the operation fails.
     * @since 5.1
     * @version 1.0
     */
    RequestWait([in] struct UsbDev dev, [out] unsigned char[] clientData, [out] unsigned char[] buffer, [in] int timeout);

    /* *
     * @brief Cancels the data transfer requests to be processed.
     *
     * @param dev Indicates the USB device address.
     * @param pipe Indicates the pipe of the USB device.
     *
     * @return Returns <b>0</b> if the operation is successful; returns a non-0 value if the operation fails.
     * @since 5.1
     * @version 1.0
     */
    RequestCancel([in] struct UsbDev dev, [in] struct UsbPipe pipe);

    /* *
     * @brief Reads data on a specified endpoint during bulk transfer. The endpoint must be in the data reading
     * direction. You can specify a timeout duration if needed.
     *
     * @param dev Indicates the USB device address.
     * @param pipe Indicates the pipe of the USB device.
     * @param timeout Indicates the timeout duration.
     * @param data Indicates the read data.
     *
     * @return Returns <b>0</b> if the operation is successful; returns a non-0 value if the operation fails.
     * @since 5.1
     * @version 1.0
     * @deprecated since 5.1
     * @useinstead ohos.hdi.usb.v2_0.IUsbInterface.BulkTransferReadwithLength
     */
    BulkTransferRead([in] struct UsbDev dev, [in] struct UsbPipe pipe, [in] int timeout, [out] unsigned char[] data);

    /* *
     * @brief Writes data on a specified endpoint during bulk transfer. The endpoint must be in the data writing
     * direction.
     *
     * @param dev Indicates the USB device address.
     * @param pipe Indicates the pipe of the USB device.
     * @param timeout Indicates the timeout duration.
     * @param data Indicates the written data.
     *
     * @return Returns <b>0</b> if the operation is successful; returns a non-0 value if the operation fails.
     * @since 5.1
     * @version 1.0
     */
    BulkTransferWrite([in] struct UsbDev dev, [in] struct UsbPipe pipe, [in] int timeout, [in] unsigned char[] data);

    /* *
     * @brief Reads data on a specified endpoint during bulk transfer. The endpoint must be in the data reading
     * direction. You can specify a timeout duration if needed.
     *
     * @param dev Indicates the USB device address.
     * @param pipe Indicates the pipe of the USB device.
     * @param timeout Indicates the timeout duration.
     * @param length the maximum number of bytes to receive into the data buffer.
     * @param data Indicates the read data.
     *
     * @return Returns <b>0</b> if the operation is successful; returns a non-0 value if the operation fails.
     * @since 5.1
     * @version 1.0
     */
    BulkTransferReadwithLength([in] struct UsbDev dev, [in] struct UsbPipe pipe, [in] int timeout, [in] int length, [out] unsigned char[] data);

    /* *
     * @brief Registers a callback for isochronous bulk transfer.
     *
     * @param dev Indicates the USB device address.
     * @param pipe Indicates the pipe of the USB device.
     * @param cb Indicates the reference to the callback.
     *
     * @return Returns <b>0</b> if the operation is successful; returns a non-0 value if the operation fails.
     * @since 5.1
     * @version 1.0
     */
    RegBulkCallback([in] struct UsbDev dev, [in] struct UsbPipe pipe, [in] IUsbdBulkCallback cb);

    /* *
     * @brief Unregisters the callback for isochronous bulk transfer.
     *
     * @param dev Indicates the USB device address.
     * @param pipe Indicates the pipe of the USB device.
     *
     * @return Returns <b>0</b> if the operation is successful; returns a non-0 value if the operation fails.
     * @since 5.1
     * @version 1.0
     */
    UnRegBulkCallback([in] struct UsbDev dev, [in] struct UsbPipe pipe);

    /* *
     * @brief Reads data during isochronous bulk transfer.
     *
     * @param dev Indicates the USB device address.
     * @param pipe Indicates the pipe of the USB device.
     * @param ashmem Indicates the shared memory, which is used to store the read data.
     *
     * @return Returns <b>0</b> if the operation is successful; returns a non-0 value if the operation fails.
     * @since 5.1
     * @version 1.0
     */
    BulkRead([in] struct UsbDev dev, [in] struct UsbPipe pipe, [in] Ashmem ashmem);

    /* *
     * @brief Writes data during isochronous bulk transfer.
     *
     * @param dev Indicates the USB device address.
     * @param pipe Indicates the pipe of the USB device.
     * @param ashmem Indicates the shared memory, which is used to store the written data.
     *
     * @return Returns <b>0</b> if the operation is successful; returns a non-0 value if the operation fails.
     * @since 5.1
     * @version 1.0
     */
    BulkWrite([in] struct UsbDev dev, [in] struct UsbPipe pipe, [in] Ashmem ashmem);

    /* *
     * @brief Cancels the isochronous bulk transfer. The read and write operations on the current USB interface will
     * be cancelled.
     *
     * @param dev Indicates the USB device address.
     * @param pipe Indicates the pipe of the USB device.
     *
     * @return Returns <b>0</b> if the operation is successful; returns a non-0 value if the operation fails.
     * @since 5.1
     * @version 1.0
     */
    BulkCancel([in] struct UsbDev dev, [in] struct UsbPipe pipe);

    /* *
     * @brief Performs control transfer for endpoint 0 of the device. The data transfer direction is determined by the
     * request type. If the result of <b>requestType</b>&
     * <b>USB_ENDPOINT_DIR_MASK</b> is <b>USB_DIR_OUT</b>, the endpoint is in the data writing direction; if the result
     * is <b>USB_DIR_IN</b>, the endpoint is in the data reading direction.
     *
     * @param dev Indicates the USB device address.
     * @param ctrl Indicates the control data packet structure.
     * @param data Indicates the read data.
     *
     * @return Returns <b>0</b> if the operation is successful; returns a non-0 value if the operation fails.
     * @since 5.1
     * @version 1.0
     * @deprecated since 5.1
     * @useinstead ohos.hdi.usb.v2_0.IUsbInterface.ControlTransferReadwithLength
     */
    ControlTransferRead([in] struct UsbDev dev, [in] struct UsbCtrlTransfer ctrl, [out] unsigned char[] data);

    /* *
     * @brief Performs control transfer for endpoint 0 of the device. The data transfer direction is determined by the
     * request type. If the result of <b>requestType</b>&
     * <b>USB_ENDPOINT_DIR_MASK</b> is <b>USB_DIR_OUT</b>, the endpoint is in the data writing direction; if the result
     * is <b>USB_DIR_IN</b>, the endpoint is in the data writing direction.
     *
     * @param dev Indicates the USB device address.
     * @param ctrl Indicates the control data packet structure.
     * @param data Indicates the write data.
     *
     * @return Returns <b>0</b> if the operation is successful; returns a non-0 value if the operation fails.
     * @since 5.1
     * @version 1.0
     */
    ControlTransferWrite([in] struct UsbDev dev, [in] struct UsbCtrlTransfer ctrl, [in] unsigned char[] data);

    /* *
     * @brief Performs control transfer for endpoint 0 of the device. The data transfer direction is determined by the
     * request type. If the result of <b>requestType</b>&
     * <b>USB_ENDPOINT_DIR_MASK</b> is <b>USB_DIR_OUT</b>, the endpoint is in the data writing direction; if the result
     * is <b>USB_DIR_IN</b>, the endpoint is in the data reading direction.
     *
     * @param dev Indicates the USB device address.
     * @param ctrl Indicates the control data packet structure.
     * @param data Indicates the read data.
     *
     * @return Returns <b>0</b> if the operation is successful; returns a non-0 value if the operation fails.
     * @since 5.1
     * @version 1.0
     */
    ControlTransferReadwithLength([in] struct UsbDev dev, [in] struct UsbCtrlTransferParams ctrl, [out] unsigned char[] data);

    /* *
     * @brief Reads data on a specified endpoint during interrupt transfer. The endpoint must be in the data reading
     * direction.
     *
     * @param dev Indicates the USB device address.
     * @param pipe Indicates the pipe of the USB device.
     * @param timeout Indicates the timeout duration.
     * @param data Indicates the read data.
     *
     * @return Returns <b>0</b> if the operation is successful; returns a non-0 value if the operation fails.
     * @since 5.1
     * @version 1.0
     */
    InterruptTransferRead([in] struct UsbDev dev, [in] struct UsbPipe pipe, [in] int timeout, [out] unsigned char[] data);

    /* *
     * @brief Writes data on a specified endpoint during interrupt transfer. The endpoint must be in the data writing
     * direction.
     *
     * @param dev Indicates the USB device address.
     * @param pipe Indicates the pipe of the USB device.
     * @param timeout Indicates the timeout duration.
     * @param data Indicates the read data.
     *
     * @return Returns <b>0</b> if the operation is successful; returns a non-0 value if the operation fails.
     * @since 5.1
     * @version 1.0
     */
    InterruptTransferWrite([in] struct UsbDev dev, [in] struct UsbPipe pipe, [in] int timeout, [in] unsigned char[] data);

    /* *
     * @brief Reads data on a specified endpoint during isochronous transfer. The endpoint must be in the data reading
     * direction.
     *
     * @param dev Indicates the USB device address.
     * @param pipe Indicates the pipe of the USB device.
     * @param timeout Indicates the timeout duration.
     * @param data Indicates the read data.
     *
     * @return Returns <b>0</b> if the operation is successful; returns a non-0 value if the operation fails.
     * @since 5.1
     * @version 1.0
     */
    IsoTransferRead([in] struct UsbDev dev, [in] struct UsbPipe pipe, [in] int timeout, [out] unsigned char[] data);

    /* *
     * @brief Writes data on a specified endpoint during isochronous transfer. The endpoint must be in the data writing
     * direction.
     *
     * @param dev Indicates the USB device address.
     * @param pipe Indicates the pipe of the USB device.
     * @param timeout Indicates the timeout duration.
     * @param data Indicates the read data.
     *
     * @return Returns <b>0</b> if the operation is successful; returns a non-0 value if the operation fails.
     * @since 5.1
     * @version 1.0
     */
    IsoTransferWrite([in] struct UsbDev dev, [in] struct UsbPipe pipe, [in] int timeout, [in] unsigned char[] data);

    /* *
     * @brief Binds a subscriber.
     *
     * @param subscriber Indicates the subscriber.
     *
     * @return Returns <b>0</b> if the operation is successful; returns a non-0 value if the operation fails.
     * @since 5.1
     * @version 1.0
     */
    BindUsbdHostSubscriber([in] IUsbdSubscriber subscriber);

    /* *
     * @brief Unbinds a subscriber.
     *
     * @param subscriber Indicates the subscriber.
     *
     * @return Returns <b>0</b> if the operation is successful; returns a non-0 value if the operation fails.
     * @since 5.1
     * @version 1.0
     */
    UnbindUsbdHostSubscriber([in] IUsbdSubscriber subscriber);

    /* *
     * @brief Submit usb async transfer.
     *
     * @param dev Indicates the USB device address.
     * @param info Indicates the param info of the USB transfer.
     * @param cb Indicates the callback function of base.
     * @param ashmem Indicates the object of share memory
     *
     * @return Returns <b>0</b> if the operation is successful; returns a non-0 value if the operation fails.
     * @since 5.1
     * @version 1.0
     */
    UsbSubmitTransfer([in] struct UsbDev dev, [in] USBTransferInfo info, [in] IUsbdTransferCallback cb, [in] Ashmem ashmem);

    /* *
     * @brief Cancels the usb async transfer by endpoint.
     *
     * @param dev Indicates the USB device address.
     * @param endpoint Indicates the endpoint address.
     *
     * @return Returns <b>0</b> if the operation is successful; returns a non-0 value if the operation fails.
     * @since 5.1
     * @version 1.0
     */
    UsbCancelTransfer([in] struct UsbDev dev, [in] int endpoint);
}