1 /* 2 * Copyright (C) 2008 The Android Open Source Project 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * * Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * * Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in 12 * the documentation and/or other materials provided with the 13 * distribution. 14 * 15 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 16 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 17 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS 18 * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE 19 * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, 20 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, 21 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS 22 * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED 23 * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, 24 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT 25 * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 26 * SUCH DAMAGE. 27 */ 28 29 #pragma once 30 31 #include "transport.h" 32 33 struct usb_ifc_info { 34 /* from device descriptor */ 35 unsigned short dev_vendor; 36 unsigned short dev_product; 37 38 unsigned char dev_class; 39 unsigned char dev_subclass; 40 unsigned char dev_protocol; 41 42 unsigned char ifc_class; 43 unsigned char ifc_subclass; 44 unsigned char ifc_protocol; 45 46 unsigned char has_bulk_in; 47 unsigned char has_bulk_out; 48 49 unsigned char writable; 50 51 char serial_number[256]; 52 char device_path[256]; 53 54 char interface[256]; 55 }; 56 57 class UsbTransport : public Transport { 58 // Resets the underlying transport. Returns 0 on success. 59 // This effectively simulates unplugging and replugging 60 public: 61 virtual int Reset() = 0; 62 }; 63 64 typedef int (*ifc_match_func)(usb_ifc_info *ifc); 65 66 // 0 is non blocking 67 UsbTransport* usb_open(ifc_match_func callback, uint32_t timeout_ms = 0); 68