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1b9617c85c
Now has support for isochronous transfers in the WinUSB backend, which may or may not work better than the UsbDk backend.
128 lines
4 KiB
C
128 lines
4 KiB
C
/*
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* Windows backend common header for libusb 1.0
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*
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* This file brings together header code common between
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* the desktop Windows and Windows CE backends.
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* Copyright © 2012-2013 RealVNC Ltd.
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* Copyright © 2009-2012 Pete Batard <pete@akeo.ie>
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* With contributions from Michael Plante, Orin Eman et al.
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* Parts of this code adapted from libusb-win32-v1 by Stephan Meyer
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* Major code testing contribution by Xiaofan Chen
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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#pragma once
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// Windows API default is uppercase - ugh!
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#if !defined(bool)
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#define bool BOOL
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#endif
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#if !defined(true)
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#define true TRUE
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#endif
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#if !defined(false)
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#define false FALSE
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#endif
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#define EPOCH_TIME UINT64_C(116444736000000000) // 1970.01.01 00:00:000 in MS Filetime
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#if defined(__CYGWIN__ )
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#define _stricmp strcasecmp
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#define _strdup strdup
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// _beginthreadex is MSVCRT => unavailable for cygwin. Fallback to using CreateThread
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#define _beginthreadex(a, b, c, d, e, f) CreateThread(a, b, (LPTHREAD_START_ROUTINE)c, d, e, (LPDWORD)f)
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#endif
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#define safe_free(p) do {if (p != NULL) {free((void *)p); p = NULL;}} while (0)
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#ifndef ARRAYSIZE
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#define ARRAYSIZE(A) (sizeof(A)/sizeof((A)[0]))
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#endif
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#define ERR_BUFFER_SIZE 256
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/*
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* API macros - leveraged from libusb-win32 1.x
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*/
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#ifndef _WIN32_WCE
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#define DLL_STRINGIFY(s) #s
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#define DLL_LOAD_LIBRARY(name) LoadLibraryA(DLL_STRINGIFY(name))
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#else
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#define DLL_STRINGIFY(s) L#s
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#define DLL_LOAD_LIBRARY(name) LoadLibrary(DLL_STRINGIFY(name))
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#endif
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/*
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* Macros for handling DLL themselves
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*/
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#define DLL_HANDLE_NAME(name) __dll_##name##_handle
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#define DLL_DECLARE_HANDLE(name) \
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static HMODULE DLL_HANDLE_NAME(name) = NULL
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#define DLL_GET_HANDLE(name) \
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do { \
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DLL_HANDLE_NAME(name) = DLL_LOAD_LIBRARY(name); \
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if (!DLL_HANDLE_NAME(name)) \
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return FALSE; \
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} while (0)
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#define DLL_FREE_HANDLE(name) \
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do { \
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if (DLL_HANDLE_NAME(name)) { \
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FreeLibrary(DLL_HANDLE_NAME(name)); \
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DLL_HANDLE_NAME(name) = NULL; \
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} \
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} while (0)
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/*
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* Macros for handling functions within a DLL
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*/
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#define DLL_FUNC_NAME(name) __dll_##name##_func_t
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#define DLL_DECLARE_FUNC_PREFIXNAME(api, ret, prefixname, name, args) \
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typedef ret (api * DLL_FUNC_NAME(name))args; \
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static DLL_FUNC_NAME(name) prefixname = NULL
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#define DLL_DECLARE_FUNC(api, ret, name, args) \
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DLL_DECLARE_FUNC_PREFIXNAME(api, ret, name, name, args)
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#define DLL_DECLARE_FUNC_PREFIXED(api, ret, prefix, name, args) \
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DLL_DECLARE_FUNC_PREFIXNAME(api, ret, prefix##name, name, args)
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#define DLL_LOAD_FUNC_PREFIXNAME(dll, prefixname, name, ret_on_failure) \
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do { \
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HMODULE h = DLL_HANDLE_NAME(dll); \
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prefixname = (DLL_FUNC_NAME(name))GetProcAddress(h, \
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DLL_STRINGIFY(name)); \
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if (prefixname) \
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break; \
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prefixname = (DLL_FUNC_NAME(name))GetProcAddress(h, \
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DLL_STRINGIFY(name) DLL_STRINGIFY(A)); \
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if (prefixname) \
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break; \
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prefixname = (DLL_FUNC_NAME(name))GetProcAddress(h, \
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DLL_STRINGIFY(name) DLL_STRINGIFY(W)); \
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if (prefixname) \
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break; \
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if (ret_on_failure) \
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return FALSE; \
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} while (0)
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#define DLL_LOAD_FUNC(dll, name, ret_on_failure) \
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DLL_LOAD_FUNC_PREFIXNAME(dll, name, name, ret_on_failure)
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#define DLL_LOAD_FUNC_PREFIXED(dll, prefix, name, ret_on_failure) \
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DLL_LOAD_FUNC_PREFIXNAME(dll, prefix##name, name, ret_on_failure)
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