ceb7cbf5fd
For testing there needs to be a way to simulate unplugging and replugging a device. This change adds support for a USB reset method that does this. Also add timeouts, so USB reads/writes don't block forever on an unresponsive device. Test: glinux, fastboot tool still works Test: Reset confirmed working via wireshark Linux URB captures Change-Id: I7213a2395d4ef1c0238810e4929ab966e78c8b55
64 lines
2.2 KiB
C++
64 lines
2.2 KiB
C++
/*
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* Copyright (C) 2008 The Android Open Source Project
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* * Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* * Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in
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* the documentation and/or other materials provided with the
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* distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
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* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
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* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
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* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
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* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
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* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
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* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
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* OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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#pragma once
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#include "transport.h"
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struct usb_ifc_info {
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/* from device descriptor */
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unsigned short dev_vendor;
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unsigned short dev_product;
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unsigned char dev_class;
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unsigned char dev_subclass;
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unsigned char dev_protocol;
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unsigned char ifc_class;
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unsigned char ifc_subclass;
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unsigned char ifc_protocol;
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unsigned char has_bulk_in;
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unsigned char has_bulk_out;
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unsigned char writable;
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char serial_number[256];
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char device_path[256];
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};
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class UsbTransport : public Transport {
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// Resets the underlying transport. Returns 0 on success.
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// This effectively simulates unplugging and replugging
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virtual int Reset() = 0;
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};
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typedef int (*ifc_match_func)(usb_ifc_info *ifc);
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// 0 is non blocking
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UsbTransport* usb_open(ifc_match_func callback, uint32_t timeout_ms = 0);
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