| /* |
| * Copyright (C) 2010 The Android Open Source Project |
| * |
| * 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. |
| */ |
| |
| package android.hardware.usb; |
| |
| /** |
| * Contains constants for the USB protocol. |
| * These constants correspond to definitions in linux/usb/ch9.h in the linux kernel. |
| */ |
| public final class UsbConstants { |
| |
| /** |
| * Bitmask used for extracting the {@link UsbEndpoint} direction from its address field. |
| * @see UsbEndpoint#getAddress |
| * @see UsbEndpoint#getDirection |
| * @see #USB_DIR_OUT |
| * @see #USB_DIR_IN |
| * |
| */ |
| public static final int USB_ENDPOINT_DIR_MASK = 0x80; |
| /** |
| * Used to signify direction of data for a {@link UsbEndpoint} is OUT (host to device) |
| * @see UsbEndpoint#getDirection |
| */ |
| public static final int USB_DIR_OUT = 0; |
| /** |
| * Used to signify direction of data for a {@link UsbEndpoint} is IN (device to host) |
| * @see UsbEndpoint#getDirection |
| */ |
| public static final int USB_DIR_IN = 0x80; |
| |
| /** |
| * Bitmask used for extracting the {@link UsbEndpoint} number its address field. |
| * @see UsbEndpoint#getAddress |
| * @see UsbEndpoint#getEndpointNumber |
| */ |
| public static final int USB_ENDPOINT_NUMBER_MASK = 0x0f; |
| |
| /** |
| * Bitmask used for extracting the {@link UsbEndpoint} type from its address field. |
| * @see UsbEndpoint#getAddress |
| * @see UsbEndpoint#getType |
| * @see #USB_ENDPOINT_XFER_CONTROL |
| * @see #USB_ENDPOINT_XFER_ISOC |
| * @see #USB_ENDPOINT_XFER_BULK |
| * @see #USB_ENDPOINT_XFER_INT |
| */ |
| public static final int USB_ENDPOINT_XFERTYPE_MASK = 0x03; |
| /** |
| * Control endpoint type (endpoint zero) |
| * @see UsbEndpoint#getType |
| */ |
| public static final int USB_ENDPOINT_XFER_CONTROL = 0; |
| /** |
| * Isochronous endpoint type (currently not supported) |
| * @see UsbEndpoint#getType |
| */ |
| public static final int USB_ENDPOINT_XFER_ISOC = 1; |
| /** |
| * Bulk endpoint type |
| * @see UsbEndpoint#getType |
| */ |
| public static final int USB_ENDPOINT_XFER_BULK = 2; |
| /** |
| * Interrupt endpoint type |
| * @see UsbEndpoint#getType |
| */ |
| public static final int USB_ENDPOINT_XFER_INT = 3; |
| |
| |
| /** |
| * Bitmask used for encoding the request type for a control request on endpoint zero. |
| */ |
| public static final int USB_TYPE_MASK = (0x03 << 5); |
| /** |
| * Used to specify that an endpoint zero control request is a standard request. |
| */ |
| public static final int USB_TYPE_STANDARD = (0x00 << 5); |
| /** |
| * Used to specify that an endpoint zero control request is a class specific request. |
| */ |
| public static final int USB_TYPE_CLASS = (0x01 << 5); |
| /** |
| * Used to specify that an endpoint zero control request is a vendor specific request. |
| */ |
| public static final int USB_TYPE_VENDOR = (0x02 << 5); |
| /** |
| * Reserved endpoint zero control request type (currently unused). |
| */ |
| public static final int USB_TYPE_RESERVED = (0x03 << 5); |
| |
| |
| /** |
| * USB class indicating that the class is determined on a per-interface basis. |
| */ |
| public static final int USB_CLASS_PER_INTERFACE = 0; |
| /** |
| * USB class for audio devices. |
| */ |
| public static final int USB_CLASS_AUDIO = 1; |
| /** |
| * USB class for communication devices. |
| */ |
| public static final int USB_CLASS_COMM = 2; |
| /** |
| * USB class for human interface devices (for example, mice and keyboards). |
| */ |
| public static final int USB_CLASS_HID = 3; |
| /** |
| * USB class for physical devices. |
| */ |
| public static final int USB_CLASS_PHYSICA = 5; |
| /** |
| * USB class for still image devices (digital cameras). |
| */ |
| public static final int USB_CLASS_STILL_IMAGE = 6; |
| /** |
| * USB class for printers. |
| */ |
| public static final int USB_CLASS_PRINTER = 7; |
| /** |
| * USB class for mass storage devices. |
| */ |
| public static final int USB_CLASS_MASS_STORAGE = 8; |
| /** |
| * USB class for USB hubs. |
| */ |
| public static final int USB_CLASS_HUB = 9; |
| /** |
| * USB class for CDC devices (communications device class). |
| */ |
| public static final int USB_CLASS_CDC_DATA = 0x0a; |
| /** |
| * USB class for content smart card devices. |
| */ |
| public static final int USB_CLASS_CSCID = 0x0b; |
| /** |
| * USB class for content security devices. |
| */ |
| public static final int USB_CLASS_CONTENT_SEC = 0x0d; |
| /** |
| * USB class for video devices. |
| */ |
| public static final int USB_CLASS_VIDEO = 0x0e; |
| /** |
| * USB class for wireless controller devices. |
| */ |
| public static final int USB_CLASS_WIRELESS_CONTROLLER = 0xe0; |
| /** |
| * USB class for wireless miscellaneous devices. |
| */ |
| public static final int USB_CLASS_MISC = 0xef; |
| /** |
| * Application specific USB class. |
| */ |
| public static final int USB_CLASS_APP_SPEC = 0xfe; |
| /** |
| * Vendor specific USB class. |
| */ |
| public static final int USB_CLASS_VENDOR_SPEC = 0xff; |
| |
| /** |
| * Boot subclass for HID devices. |
| */ |
| public static final int USB_INTERFACE_SUBCLASS_BOOT = 1; |
| /** |
| * Vendor specific USB subclass. |
| */ |
| public static final int USB_SUBCLASS_VENDOR_SPEC = 0xff; |
| } |