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ipfs fetcher

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This commit is contained in:
Ian Norden 2019-05-01 12:49:56 -05:00
parent 15e044403d
commit 3108957e5f
54 changed files with 34728 additions and 4 deletions
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14
Gopkg.lock generated
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@ -130,7 +130,7 @@
[[projects]]
branch = "rpc_statediffs_at_head"
digest = "1:762bae8d82b8871999f15cb0694f55f99a56f764d68e00c49ee6eae479da5df6"
digest = "1:02b56bb807b0b602f7d64b786c3ad5277f0ee2dc841738904b0bd14576f4d9ed"
name = "github.com/ethereum/go-ethereum"
packages = [
".",
@ -191,7 +191,7 @@
"statediff",
"trie",
]
pruneopts = "UT"
pruneopts = "T"
revision = "edf001e1d2296951e7e592c55e66ce074bd62807"
source = "github.com/vulcanize/go-ethereum"
@ -986,10 +986,10 @@
[[projects]]
branch = "master"
digest = "1:6addadad21c95f83b592099496bb250a30aa8882faff9f8bd22aa9a15b6d8db1"
digest = "1:447562773a19dc1719359c2cd70d275c62c0b89f79d763f41d5deedb0e69873f"
name = "github.com/karalabe/hid"
packages = ["."]
pruneopts = "UT"
pruneopts = "T"
revision = "d815e0c1a2e2082a287a2806bc90bc8fc7b276a9"
[[projects]]
@ -2170,6 +2170,7 @@
"github.com/ethereum/go-ethereum/common",
"github.com/ethereum/go-ethereum/common/hexutil",
"github.com/ethereum/go-ethereum/core/rawdb",
"github.com/ethereum/go-ethereum/core/state",
"github.com/ethereum/go-ethereum/core/types",
"github.com/ethereum/go-ethereum/crypto",
"github.com/ethereum/go-ethereum/ethclient",
@ -2181,6 +2182,11 @@
"github.com/ethereum/go-ethereum/statediff",
"github.com/hashicorp/golang-lru",
"github.com/hpcloud/tail",
"github.com/ipfs/go-block-format",
"github.com/ipfs/go-blockservice",
"github.com/ipfs/go-cid",
"github.com/ipfs/go-ipfs/core",
"github.com/ipfs/go-ipfs/repo/fsrepo",
"github.com/jmoiron/sqlx",
"github.com/lib/pq",
"github.com/mitchellh/go-homedir",

4
Gopkg.toml
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@ -69,3 +69,7 @@
[[prune.project]]
name = "github.com/ethereum/go-ethereum"
unused-packages = false
[[prune.project]]
name = "github.com/karalabe/hid"
unused-packages = false

64
pkg/ipfs/fetcher.go Normal file
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// VulcanizeDB
// Copyright © 2019 Vulcanize
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU Affero General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU Affero General Public License for more details.
// You should have received a copy of the GNU Affero General Public License
// along with this program. If not, see <http://www.gnu.org/licenses/>.
package ipfs
import (
"context"
"github.com/ipfs/go-block-format"
"github.com/ipfs/go-blockservice"
"github.com/ipfs/go-cid"
)
// IPLDFetcher is the interface for fetching IPLD objects from IPFS
type IPLDFetcher interface {
Fetch(cid cid.Cid) (blocks.Block, error)
FetchBatch(cids []cid.Cid) []blocks.Block
}
// Fetcher is the underlying struct which supports the IPLDFetcher interface
type Fetcher struct {
BlockService blockservice.BlockService
}
// NewIPLDFetcher creates a pointer to a new Fetcher which satisfies the IPLDFetcher interface
func NewIPLDFetcher(ipfsPath string) (*Fetcher, error) {
blockService, err := InitIPFSBlockService(ipfsPath)
if err != nil {
return nil, err
}
return &Fetcher{
BlockService: blockService,
}, nil
}
// Fetch is used to fetch a batch of IPFS data blocks by cid
func (f *Fetcher) Fetch(cid cid.Cid) (blocks.Block, error) {
return f.BlockService.GetBlock(context.Background(), cid)
}
// FetchBatch is used to fetch a batch of IPFS data blocks by cid
// There is no guarantee all are fetched, and no error in such a case, so
// downstream we will need to confirm which CIDs were fetched in the result set
func (f *Fetcher) FetchBatch(cids []cid.Cid) []blocks.Block {
fetchedBlocks := make([]blocks.Block, 0, len(cids))
blockChan := f.BlockService.GetBlocks(context.Background(), cids)
for block := range blockChan {
fetchedBlocks = append(fetchedBlocks, block)
}
return fetchedBlocks
}

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pkg/ipfs/fetcher_test.go Normal file
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// VulcanizeDB
// Copyright © 2019 Vulcanize
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU Affero General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU Affero General Public License for more details.
// You should have received a copy of the GNU Affero General Public License
// along with this program. If not, see <http://www.gnu.org/licenses/>.
package ipfs

43
pkg/ipfs/helpers.go Normal file
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// VulcanizeDB
// Copyright © 2019 Vulcanize
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU Affero General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU Affero General Public License for more details.
// You should have received a copy of the GNU Affero General Public License
// along with this program. If not, see <http://www.gnu.org/licenses/>.
package ipfs
import (
"context"
"github.com/ipfs/go-blockservice"
"github.com/ipfs/go-ipfs/core"
"github.com/ipfs/go-ipfs/repo/fsrepo"
)
// InitIPFSBlockService is used to configure and return a BlockService using an ipfs repo path (e.g. ~/.ipfs)
func InitIPFSBlockService(ipfsPath string) (blockservice.BlockService, error) {
r, err := fsrepo.Open(ipfsPath)
if err != nil {
return nil, err
}
ctx := context.Background()
cfg := &core.BuildCfg{
Online: false,
Repo: r,
}
ipfsNode, err := core.NewNode(ctx, cfg)
if err != nil {
return nil, err
}
return ipfsNode.Blocks, nil
}

339
vendor/github.com/karalabe/hid/hidapi/README.txt generated vendored Normal file
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HIDAPI library for Windows, Linux, FreeBSD and Mac OS X
=========================================================
About
======
HIDAPI is a multi-platform library which allows an application to interface
with USB and Bluetooth HID-Class devices on Windows, Linux, FreeBSD, and Mac
OS X. HIDAPI can be either built as a shared library (.so or .dll) or
can be embedded directly into a target application by adding a single source
file (per platform) and a single header.
HIDAPI has four back-ends:
* Windows (using hid.dll)
* Linux/hidraw (using the Kernel's hidraw driver)
* Linux/libusb (using libusb-1.0)
* FreeBSD (using libusb-1.0)
* Mac (using IOHidManager)
On Linux, either the hidraw or the libusb back-end can be used. There are
tradeoffs, and the functionality supported is slightly different.
Linux/hidraw (linux/hid.c):
This back-end uses the hidraw interface in the Linux kernel. While this
back-end will support both USB and Bluetooth, it has some limitations on
kernels prior to 2.6.39, including the inability to send or receive feature
reports. In addition, it will only communicate with devices which have
hidraw nodes associated with them. Keyboards, mice, and some other devices
which are blacklisted from having hidraw nodes will not work. Fortunately,
for nearly all the uses of hidraw, this is not a problem.
Linux/FreeBSD/libusb (libusb/hid.c):
This back-end uses libusb-1.0 to communicate directly to a USB device. This
back-end will of course not work with Bluetooth devices.
HIDAPI also comes with a Test GUI. The Test GUI is cross-platform and uses
Fox Toolkit (http://www.fox-toolkit.org). It will build on every platform
which HIDAPI supports. Since it relies on a 3rd party library, building it
is optional but recommended because it is so useful when debugging hardware.
What Does the API Look Like?
=============================
The API provides the the most commonly used HID functions including sending
and receiving of input, output, and feature reports. The sample program,
which communicates with a heavily hacked up version of the Microchip USB
Generic HID sample looks like this (with error checking removed for
simplicity):
#ifdef WIN32
#include <windows.h>
#endif
#include <stdio.h>
#include <stdlib.h>
#include "hidapi.h"
#define MAX_STR 255
int main(int argc, char* argv[])
{
int res;
unsigned char buf[65];
wchar_t wstr[MAX_STR];
hid_device *handle;
int i;
// Initialize the hidapi library
res = hid_init();
// Open the device using the VID, PID,
// and optionally the Serial number.
handle = hid_open(0x4d8, 0x3f, NULL);
// Read the Manufacturer String
res = hid_get_manufacturer_string(handle, wstr, MAX_STR);
wprintf(L"Manufacturer String: %s\n", wstr);
// Read the Product String
res = hid_get_product_string(handle, wstr, MAX_STR);
wprintf(L"Product String: %s\n", wstr);
// Read the Serial Number String
res = hid_get_serial_number_string(handle, wstr, MAX_STR);
wprintf(L"Serial Number String: (%d) %s\n", wstr[0], wstr);
// Read Indexed String 1
res = hid_get_indexed_string(handle, 1, wstr, MAX_STR);
wprintf(L"Indexed String 1: %s\n", wstr);
// Toggle LED (cmd 0x80). The first byte is the report number (0x0).
buf[0] = 0x0;
buf[1] = 0x80;
res = hid_write(handle, buf, 65);
// Request state (cmd 0x81). The first byte is the report number (0x0).
buf[0] = 0x0;
buf[1] = 0x81;
res = hid_write(handle, buf, 65);
// Read requested state
res = hid_read(handle, buf, 65);
// Print out the returned buffer.
for (i = 0; i < 4; i++)
printf("buf[%d]: %d\n", i, buf[i]);
// Finalize the hidapi library
res = hid_exit();
return 0;
}
If you have your own simple test programs which communicate with standard
hardware development boards (such as those from Microchip, TI, Atmel,
FreeScale and others), please consider sending me something like the above
for inclusion into the HIDAPI source. This will help others who have the
same hardware as you do.
License
========
HIDAPI may be used by one of three licenses as outlined in LICENSE.txt.
Download
=========
HIDAPI can be downloaded from github
git clone git://github.com/signal11/hidapi.git
Build Instructions
===================
This section is long. Don't be put off by this. It's not long because it's
complicated to build HIDAPI; it's quite the opposite. This section is long
because of the flexibility of HIDAPI and the large number of ways in which
it can be built and used. You will likely pick a single build method.
HIDAPI can be built in several different ways. If you elect to build a
shared library, you will need to build it from the HIDAPI source
distribution. If you choose instead to embed HIDAPI directly into your
application, you can skip the building and look at the provided platform
Makefiles for guidance. These platform Makefiles are located in linux/
libusb/ mac/ and windows/ and are called Makefile-manual. In addition,
Visual Studio projects are provided. Even if you're going to embed HIDAPI
into your project, it is still beneficial to build the example programs.
Prerequisites:
---------------
Linux:
-------
On Linux, you will need to install development packages for libudev,
libusb and optionally Fox-toolkit (for the test GUI). On
Debian/Ubuntu systems these can be installed by running:
sudo apt-get install libudev-dev libusb-1.0-0-dev libfox-1.6-dev
If you downloaded the source directly from the git repository (using
git clone), you'll need Autotools:
sudo apt-get install autotools-dev autoconf automake libtool
FreeBSD:
---------
On FreeBSD you will need to install GNU make, libiconv, and
optionally Fox-Toolkit (for the test GUI). This is done by running
the following:
pkg_add -r gmake libiconv fox16
If you downloaded the source directly from the git repository (using
git clone), you'll need Autotools:
pkg_add -r autotools
Mac:
-----
On Mac, you will need to install Fox-Toolkit if you wish to build
the Test GUI. There are two ways to do this, and each has a slight
complication. Which method you use depends on your use case.
If you wish to build the Test GUI just for your own testing on your
own computer, then the easiest method is to install Fox-Toolkit
using ports:
sudo port install fox
If you wish to build the TestGUI app bundle to redistribute to
others, you will need to install Fox-toolkit from source. This is
because the version of fox that gets installed using ports uses the
ports X11 libraries which are not compatible with the Apple X11
libraries. If you install Fox with ports and then try to distribute
your built app bundle, it will simply fail to run on other systems.
To install Fox-Toolkit manually, download the source package from
http://www.fox-toolkit.org, extract it, and run the following from
within the extracted source:
./configure && make && make install
Windows:
---------
On Windows, if you want to build the test GUI, you will need to get
the hidapi-externals.zip package from the download site. This
contains pre-built binaries for Fox-toolkit. Extract
hidapi-externals.zip just outside of hidapi, so that
hidapi-externals and hidapi are on the same level, as shown:
Parent_Folder
|
+hidapi
+hidapi-externals
Again, this step is not required if you do not wish to build the
test GUI.
Building HIDAPI into a shared library on Unix Platforms:
---------------------------------------------------------
On Unix-like systems such as Linux, FreeBSD, Mac, and even Windows, using
Mingw or Cygwin, the easiest way to build a standard system-installed shared
library is to use the GNU Autotools build system. If you checked out the
source from the git repository, run the following:
./bootstrap
./configure
make
make install <----- as root, or using sudo
If you downloaded a source package (ie: if you did not run git clone), you
can skip the ./bootstrap step.
./configure can take several arguments which control the build. The two most
likely to be used are:
--enable-testgui
Enable build of the Test GUI. This requires Fox toolkit to
be installed. Instructions for installing Fox-Toolkit on
each platform are in the Prerequisites section above.
--prefix=/usr
Specify where you want the output headers and libraries to
be installed. The example above will put the headers in
/usr/include and the binaries in /usr/lib. The default is to
install into /usr/local which is fine on most systems.
Building the manual way on Unix platforms:
-------------------------------------------
Manual Makefiles are provided mostly to give the user and idea what it takes
to build a program which embeds HIDAPI directly inside of it. These should
really be used as examples only. If you want to build a system-wide shared
library, use the Autotools method described above.
To build HIDAPI using the manual makefiles, change to the directory
of your platform and run make. For example, on Linux run:
cd linux/
make -f Makefile-manual
To build the Test GUI using the manual makefiles:
cd testgui/
make -f Makefile-manual
Building on Windows:
---------------------
To build the HIDAPI DLL on Windows using Visual Studio, build the .sln file
in the windows/ directory.
To build the Test GUI on windows using Visual Studio, build the .sln file in
the testgui/ directory.
To build HIDAPI using MinGW or Cygwin using Autotools, use the instructions
in the section titled "Building HIDAPI into a shared library on Unix
Platforms" above. Note that building the Test GUI with MinGW or Cygwin will
require the Windows procedure in the Prerequisites section above (ie:
hidapi-externals.zip).
To build HIDAPI using MinGW using the Manual Makefiles, see the section
"Building the manual way on Unix platforms" above.
HIDAPI can also be built using the Windows DDK (now also called the Windows
Driver Kit or WDK). This method was originally required for the HIDAPI build
but not anymore. However, some users still prefer this method. It is not as
well supported anymore but should still work. Patches are welcome if it does
not. To build using the DDK:
1. Install the Windows Driver Kit (WDK) from Microsoft.
2. From the Start menu, in the Windows Driver Kits folder, select Build
Environments, then your operating system, then the x86 Free Build
Environment (or one that is appropriate for your system).
3. From the console, change directory to the windows/ddk_build/ directory,
which is part of the HIDAPI distribution.
4. Type build.
5. You can find the output files (DLL and LIB) in a subdirectory created
by the build system which is appropriate for your environment. On
Windows XP, this directory is objfre_wxp_x86/i386.
Cross Compiling
================
This section talks about cross compiling HIDAPI for Linux using autotools.
This is useful for using HIDAPI on embedded Linux targets. These
instructions assume the most raw kind of embedded Linux build, where all
prerequisites will need to be built first. This process will of course vary
based on your embedded Linux build system if you are using one, such as
OpenEmbedded or Buildroot.
For the purpose of this section, it will be assumed that the following
environment variables are exported.
$ export STAGING=$HOME/out
$ export HOST=arm-linux
STAGING and HOST can be modified to suit your setup.
Prerequisites
--------------
Note that the build of libudev is the very basic configuration.
Build Libusb. From the libusb source directory, run:
./configure --host=$HOST --prefix=$STAGING
make
make install
Build libudev. From the libudev source directory, run:
./configure --disable-gudev --disable-introspection --disable-hwdb \
--host=$HOST --prefix=$STAGING
make
make install
Building HIDAPI
----------------
Build HIDAPI:
PKG_CONFIG_DIR= \
PKG_CONFIG_LIBDIR=$STAGING/lib/pkgconfig:$STAGING/share/pkgconfig \
PKG_CONFIG_SYSROOT_DIR=$STAGING \
./configure --host=$HOST --prefix=$STAGING
Signal 11 Software - 2010-04-11
2010-07-28
2011-09-10
2012-05-01
2012-07-03

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vendor/github.com/karalabe/hid/hidapi/hidapi/hidapi.h generated vendored Normal file
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/*******************************************************
HIDAPI - Multi-Platform library for
communication with HID devices.
Alan Ott
Signal 11 Software
8/22/2009
Copyright 2009, All Rights Reserved.
At the discretion of the user of this library,
this software may be licensed under the terms of the
GNU General Public License v3, a BSD-Style license, or the
original HIDAPI license as outlined in the LICENSE.txt,
LICENSE-gpl3.txt, LICENSE-bsd.txt, and LICENSE-orig.txt
files located at the root of the source distribution.
These files may also be found in the public source
code repository located at:
http://github.com/signal11/hidapi .
********************************************************/
/** @file
* @defgroup API hidapi API
*/
#ifndef HIDAPI_H__
#define HIDAPI_H__
#include <wchar.h>
#ifdef _WIN32
#define HID_API_EXPORT __declspec(dllexport)
#define HID_API_CALL
#else
#define HID_API_EXPORT /**< API export macro */
#define HID_API_CALL /**< API call macro */
#endif
#define HID_API_EXPORT_CALL HID_API_EXPORT HID_API_CALL /**< API export and call macro*/
#ifdef __cplusplus
extern "C" {
#endif
struct hid_device_;
typedef struct hid_device_ hid_device; /**< opaque hidapi structure */
/** hidapi info structure */
struct hid_device_info {
/** Platform-specific device path */
char *path;
/** Device Vendor ID */
unsigned short vendor_id;
/** Device Product ID */
unsigned short product_id;
/** Serial Number */
wchar_t *serial_number;
/** Device Release Number in binary-coded decimal,
also known as Device Version Number */
unsigned short release_number;
/** Manufacturer String */
wchar_t *manufacturer_string;
/** Product string */
wchar_t *product_string;
/** Usage Page for this Device/Interface
(Windows/Mac only). */
unsigned short usage_page;
/** Usage for this Device/Interface
(Windows/Mac only).*/
unsigned short usage;
/** The USB interface which this logical device
represents. Valid on both Linux implementations
in all cases, and valid on the Windows implementation
only if the device contains more than one interface. */
int interface_number;
/** Pointer to the next device */
struct hid_device_info *next;
};
/** @brief Initialize the HIDAPI library.
This function initializes the HIDAPI library. Calling it is not
strictly necessary, as it will be called automatically by
hid_enumerate() and any of the hid_open_*() functions if it is
needed. This function should be called at the beginning of
execution however, if there is a chance of HIDAPI handles
being opened by different threads simultaneously.
@ingroup API
@returns
This function returns 0 on success and -1 on error.
*/
int HID_API_EXPORT HID_API_CALL hid_init(void);
/** @brief Finalize the HIDAPI library.
This function frees all of the static data associated with
HIDAPI. It should be called at the end of execution to avoid
memory leaks.
@ingroup API
@returns
This function returns 0 on success and -1 on error.
*/
int HID_API_EXPORT HID_API_CALL hid_exit(void);
/** @brief Enumerate the HID Devices.
This function returns a linked list of all the HID devices
attached to the system which match vendor_id and product_id.
If @p vendor_id is set to 0 then any vendor matches.
If @p product_id is set to 0 then any product matches.
If @p vendor_id and @p product_id are both set to 0, then
all HID devices will be returned.
@ingroup API
@param vendor_id The Vendor ID (VID) of the types of device
to open.
@param product_id The Product ID (PID) of the types of
device to open.
@returns
This function returns a pointer to a linked list of type
struct #hid_device, containing information about the HID devices
attached to the system, or NULL in the case of failure. Free
this linked list by calling hid_free_enumeration().
*/
struct hid_device_info HID_API_EXPORT * HID_API_CALL hid_enumerate(unsigned short vendor_id, unsigned short product_id);
/** @brief Free an enumeration Linked List
This function frees a linked list created by hid_enumerate().
@ingroup API
@param devs Pointer to a list of struct_device returned from
hid_enumerate().
*/
void HID_API_EXPORT HID_API_CALL hid_free_enumeration(struct hid_device_info *devs);
/** @brief Open a HID device using a Vendor ID (VID), Product ID
(PID) and optionally a serial number.
If @p serial_number is NULL, the first device with the
specified VID and PID is opened.
@ingroup API
@param vendor_id The Vendor ID (VID) of the device to open.
@param product_id The Product ID (PID) of the device to open.
@param serial_number The Serial Number of the device to open
(Optionally NULL).
@returns
This function returns a pointer to a #hid_device object on
success or NULL on failure.
*/
HID_API_EXPORT hid_device * HID_API_CALL hid_open(unsigned short vendor_id, unsigned short product_id, const wchar_t *serial_number);
/** @brief Open a HID device by its path name.
The path name be determined by calling hid_enumerate(), or a
platform-specific path name can be used (eg: /dev/hidraw0 on
Linux).
@ingroup API
@param path The path name of the device to open
@returns
This function returns a pointer to a #hid_device object on
success or NULL on failure.
*/
HID_API_EXPORT hid_device * HID_API_CALL hid_open_path(const char *path);
/** @brief Write an Output report to a HID device.
The first byte of @p data[] must contain the Report ID. For
devices which only support a single report, this must be set
to 0x0. The remaining bytes contain the report data. Since
the Report ID is mandatory, calls to hid_write() will always
contain one more byte than the report contains. For example,
if a hid report is 16 bytes long, 17 bytes must be passed to
hid_write(), the Report ID (or 0x0, for devices with a
single report), followed by the report data (16 bytes). In
this example, the length passed in would be 17.
hid_write() will send the data on the first OUT endpoint, if
one exists. If it does not, it will send the data through
the Control Endpoint (Endpoint 0).
@ingroup API
@param device A device handle returned from hid_open().
@param data The data to send, including the report number as
the first byte.
@param length The length in bytes of the data to send.
@returns
This function returns the actual number of bytes written and
-1 on error.
*/
int HID_API_EXPORT HID_API_CALL hid_write(hid_device *device, const unsigned char *data, size_t length);
/** @brief Read an Input report from a HID device with timeout.
Input reports are returned
to the host through the INTERRUPT IN endpoint. The first byte will
contain the Report number if the device uses numbered reports.
@ingroup API
@param device A device handle returned from hid_open().
@param data A buffer to put the read data into.
@param length The number of bytes to read. For devices with
multiple reports, make sure to read an extra byte for
the report number.
@param milliseconds timeout in milliseconds or -1 for blocking wait.
@returns
This function returns the actual number of bytes read and
-1 on error. If no packet was available to be read within
the timeout period, this function returns 0.
*/
int HID_API_EXPORT HID_API_CALL hid_read_timeout(hid_device *dev, unsigned char *data, size_t length, int milliseconds);
/** @brief Read an Input report from a HID device.
Input reports are returned
to the host through the INTERRUPT IN endpoint. The first byte will
contain the Report number if the device uses numbered reports.
@ingroup API
@param device A device handle returned from hid_open().
@param data A buffer to put the read data into.
@param length The number of bytes to read. For devices with
multiple reports, make sure to read an extra byte for
the report number.
@returns
This function returns the actual number of bytes read and
-1 on error. If no packet was available to be read and
the handle is in non-blocking mode, this function returns 0.
*/
int HID_API_EXPORT HID_API_CALL hid_read(hid_device *device, unsigned char *data, size_t length);
/** @brief Set the device handle to be non-blocking.
In non-blocking mode calls to hid_read() will return
immediately with a value of 0 if there is no data to be
read. In blocking mode, hid_read() will wait (block) until
there is data to read before returning.
Nonblocking can be turned on and off at any time.
@ingroup API
@param device A device handle returned from hid_open().
@param nonblock enable or not the nonblocking reads
- 1 to enable nonblocking
- 0 to disable nonblocking.
@returns
This function returns 0 on success and -1 on error.
*/
int HID_API_EXPORT HID_API_CALL hid_set_nonblocking(hid_device *device, int nonblock);
/** @brief Send a Feature report to the device.
Feature reports are sent over the Control endpoint as a
Set_Report transfer. The first byte of @p data[] must
contain the Report ID. For devices which only support a
single report, this must be set to 0x0. The remaining bytes
contain the report data. Since the Report ID is mandatory,
calls to hid_send_feature_report() will always contain one
more byte than the report contains. For example, if a hid
report is 16 bytes long, 17 bytes must be passed to
hid_send_feature_report(): the Report ID (or 0x0, for
devices which do not use numbered reports), followed by the
report data (16 bytes). In this example, the length passed
in would be 17.
@ingroup API
@param device A device handle returned from hid_open().
@param data The data to send, including the report number as
the first byte.
@param length The length in bytes of the data to send, including
the report number.
@returns
This function returns the actual number of bytes written and
-1 on error.
*/
int HID_API_EXPORT HID_API_CALL hid_send_feature_report(hid_device *device, const unsigned char *data, size_t length);
/** @brief Get a feature report from a HID device.
Set the first byte of @p data[] to the Report ID of the
report to be read. Make sure to allow space for this
extra byte in @p data[]. Upon return, the first byte will
still contain the Report ID, and the report data will
start in data[1].
@ingroup API
@param device A device handle returned from hid_open().
@param data A buffer to put the read data into, including
the Report ID. Set the first byte of @p data[] to the
Report ID of the report to be read, or set it to zero
if your device does not use numbered reports.
@param length The number of bytes to read, including an
extra byte for the report ID. The buffer can be longer
than the actual report.
@returns
This function returns the number of bytes read plus
one for the report ID (which is still in the first
byte), or -1 on error.
*/
int HID_API_EXPORT HID_API_CALL hid_get_feature_report(hid_device *device, unsigned char *data, size_t length);
/** @brief Close a HID device.
@ingroup API
@param device A device handle returned from hid_open().
*/
void HID_API_EXPORT HID_API_CALL hid_close(hid_device *device);
/** @brief Get The Manufacturer String from a HID device.
@ingroup API
@param device A device handle returned from hid_open().
@param string A wide string buffer to put the data into.
@param maxlen The length of the buffer in multiples of wchar_t.
@returns
This function returns 0 on success and -1 on error.
*/
int HID_API_EXPORT_CALL hid_get_manufacturer_string(hid_device *device, wchar_t *string, size_t maxlen);
/** @brief Get The Product String from a HID device.
@ingroup API
@param device A device handle returned from hid_open().
@param string A wide string buffer to put the data into.
@param maxlen The length of the buffer in multiples of wchar_t.
@returns
This function returns 0 on success and -1 on error.
*/
int HID_API_EXPORT_CALL hid_get_product_string(hid_device *device, wchar_t *string, size_t maxlen);
/** @brief Get The Serial Number String from a HID device.
@ingroup API
@param device A device handle returned from hid_open().
@param string A wide string buffer to put the data into.
@param maxlen The length of the buffer in multiples of wchar_t.
@returns
This function returns 0 on success and -1 on error.
*/
int HID_API_EXPORT_CALL hid_get_serial_number_string(hid_device *device, wchar_t *string, size_t maxlen);
/** @brief Get a string from a HID device, based on its string index.
@ingroup API
@param device A device handle returned from hid_open().
@param string_index The index of the string to get.
@param string A wide string buffer to put the data into.
@param maxlen The length of the buffer in multiples of wchar_t.
@returns
This function returns 0 on success and -1 on error.
*/
int HID_API_EXPORT_CALL hid_get_indexed_string(hid_device *device, int string_index, wchar_t *string, size_t maxlen);
/** @brief Get a string describing the last error which occurred.
@ingroup API
@param device A device handle returned from hid_open().
@returns
This function returns a string containing the last error
which occurred or NULL if none has occurred.
*/
HID_API_EXPORT const wchar_t* HID_API_CALL hid_error(hid_device *device);
#ifdef __cplusplus
}
#endif
#endif

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/*******************************************************
HIDAPI - Multi-Platform library for
communication with HID devices.
Alan Ott
Signal 11 Software
8/22/2009
Copyright 2009, All Rights Reserved.
At the discretion of the user of this library,
this software may be licensed under the terms of the
GNU General Public License v3, a BSD-Style license, or the
original HIDAPI license as outlined in the LICENSE.txt,
LICENSE-gpl3.txt, LICENSE-bsd.txt, and LICENSE-orig.txt
files located at the root of the source distribution.
These files may also be found in the public source
code repository located at:
http://github.com/signal11/hidapi .
********************************************************/
#include <windows.h>
#ifndef _NTDEF_
typedef LONG NTSTATUS;
#endif
#ifdef __MINGW32__
#include <ntdef.h>
#include <winbase.h>
#endif
#ifdef __CYGWIN__
#include <ntdef.h>
#define _wcsdup wcsdup
#endif
/* The maximum number of characters that can be passed into the
HidD_Get*String() functions without it failing.*/
#define MAX_STRING_WCHARS 0xFFF
/*#define HIDAPI_USE_DDK*/
#ifdef __cplusplus
extern "C" {
#endif
#include <setupapi.h>
#include <winioctl.h>
#ifdef HIDAPI_USE_DDK
#include <hidsdi.h>
#endif
/* Copied from inc/ddk/hidclass.h, part of the Windows DDK. */
#define HID_OUT_CTL_CODE(id) \
CTL_CODE(FILE_DEVICE_KEYBOARD, (id), METHOD_OUT_DIRECT, FILE_ANY_ACCESS)
#define IOCTL_HID_GET_FEATURE HID_OUT_CTL_CODE(100)
#ifdef __cplusplus
} /* extern "C" */
#endif
#include <stdio.h>
#include <stdlib.h>
#include "hidapi.h"
#undef MIN
#define MIN(x,y) ((x) < (y)? (x): (y))
#ifdef _MSC_VER
/* Thanks Microsoft, but I know how to use strncpy(). */
#pragma warning(disable:4996)
#endif
#ifdef __cplusplus
extern "C" {
#endif
#ifndef HIDAPI_USE_DDK
/* Since we're not building with the DDK, and the HID header
files aren't part of the SDK, we have to define all this
stuff here. In lookup_functions(), the function pointers
defined below are set. */
typedef struct _HIDD_ATTRIBUTES{
ULONG Size;
USHORT VendorID;
USHORT ProductID;
USHORT VersionNumber;
} HIDD_ATTRIBUTES, *PHIDD_ATTRIBUTES;
typedef USHORT USAGE;
typedef struct _HIDP_CAPS {
USAGE Usage;
USAGE UsagePage;
USHORT InputReportByteLength;
USHORT OutputReportByteLength;
USHORT FeatureReportByteLength;
USHORT Reserved[17];
USHORT fields_not_used_by_hidapi[10];
} HIDP_CAPS, *PHIDP_CAPS;
typedef void* PHIDP_PREPARSED_DATA;
#define HIDP_STATUS_SUCCESS 0x110000
typedef BOOLEAN (__stdcall *HidD_GetAttributes_)(HANDLE device, PHIDD_ATTRIBUTES attrib);
typedef BOOLEAN (__stdcall *HidD_GetSerialNumberString_)(HANDLE device, PVOID buffer, ULONG buffer_len);
typedef BOOLEAN (__stdcall *HidD_GetManufacturerString_)(HANDLE handle, PVOID buffer, ULONG buffer_len);
typedef BOOLEAN (__stdcall *HidD_GetProductString_)(HANDLE handle, PVOID buffer, ULONG buffer_len);
typedef BOOLEAN (__stdcall *HidD_SetFeature_)(HANDLE handle, PVOID data, ULONG length);
typedef BOOLEAN (__stdcall *HidD_GetFeature_)(HANDLE handle, PVOID data, ULONG length);
typedef BOOLEAN (__stdcall *HidD_GetIndexedString_)(HANDLE handle, ULONG string_index, PVOID buffer, ULONG buffer_len);
typedef BOOLEAN (__stdcall *HidD_GetPreparsedData_)(HANDLE handle, PHIDP_PREPARSED_DATA *preparsed_data);
typedef BOOLEAN (__stdcall *HidD_FreePreparsedData_)(PHIDP_PREPARSED_DATA preparsed_data);
typedef NTSTATUS (__stdcall *HidP_GetCaps_)(PHIDP_PREPARSED_DATA preparsed_data, HIDP_CAPS *caps);
typedef BOOLEAN (__stdcall *HidD_SetNumInputBuffers_)(HANDLE handle, ULONG number_buffers);
static HidD_GetAttributes_ HidD_GetAttributes;
static HidD_GetSerialNumberString_ HidD_GetSerialNumberString;
static HidD_GetManufacturerString_ HidD_GetManufacturerString;
static HidD_GetProductString_ HidD_GetProductString;
static HidD_SetFeature_ HidD_SetFeature;
static HidD_GetFeature_ HidD_GetFeature;
static HidD_GetIndexedString_ HidD_GetIndexedString;
static HidD_GetPreparsedData_ HidD_GetPreparsedData;
static HidD_FreePreparsedData_ HidD_FreePreparsedData;
static HidP_GetCaps_ HidP_GetCaps;
static HidD_SetNumInputBuffers_ HidD_SetNumInputBuffers;
static HMODULE lib_handle = NULL;
static BOOLEAN initialized = FALSE;
#endif /* HIDAPI_USE_DDK */
struct hid_device_ {
HANDLE device_handle;
BOOL blocking;
USHORT output_report_length;
size_t input_report_length;
void *last_error_str;
DWORD last_error_num;
BOOL read_pending;
char *read_buf;
OVERLAPPED ol;
};
static hid_device *new_hid_device()
{
hid_device *dev = (hid_device*) calloc(1, sizeof(hid_device));
dev->device_handle = INVALID_HANDLE_VALUE;
dev->blocking = TRUE;
dev->output_report_length = 0;
dev->input_report_length = 0;
dev->last_error_str = NULL;
dev->last_error_num = 0;
dev->read_pending = FALSE;
dev->read_buf = NULL;
memset(&dev->ol, 0, sizeof(dev->ol));
dev->ol.hEvent = CreateEvent(NULL, FALSE, FALSE /*initial state f=nonsignaled*/, NULL);
return dev;
}
static void free_hid_device(hid_device *dev)
{
CloseHandle(dev->ol.hEvent);
CloseHandle(dev->device_handle);
LocalFree(dev->last_error_str);
free(dev->read_buf);
free(dev);
}
static void register_error(hid_device *device, const char *op)
{
WCHAR *ptr, *msg;
FormatMessageW(FORMAT_MESSAGE_ALLOCATE_BUFFER |
FORMAT_MESSAGE_FROM_SYSTEM |
FORMAT_MESSAGE_IGNORE_INSERTS,
NULL,
GetLastError(),
MAKELANGID(LANG_NEUTRAL, SUBLANG_DEFAULT),
(LPVOID)&msg, 0/*sz*/,
NULL);
/* Get rid of the CR and LF that FormatMessage() sticks at the
end of the message. Thanks Microsoft! */
ptr = msg;
while (*ptr) {
if (*ptr == '\r') {
*ptr = 0x0000;
break;
}
ptr++;
}
/* Store the message off in the Device entry so that
the hid_error() function can pick it up. */
LocalFree(device->last_error_str);
device->last_error_str = msg;
}
#ifndef HIDAPI_USE_DDK
static int lookup_functions()
{
lib_handle = LoadLibraryA("hid.dll");
if (lib_handle) {
#define RESOLVE(x) x = (x##_)GetProcAddress(lib_handle, #x); if (!x) return -1;
RESOLVE(HidD_GetAttributes);
RESOLVE(HidD_GetSerialNumberString);
RESOLVE(HidD_GetManufacturerString);
RESOLVE(HidD_GetProductString);
RESOLVE(HidD_SetFeature);
RESOLVE(HidD_GetFeature);
RESOLVE(HidD_GetIndexedString);
RESOLVE(HidD_GetPreparsedData);
RESOLVE(HidD_FreePreparsedData);
RESOLVE(HidP_GetCaps);
RESOLVE(HidD_SetNumInputBuffers);
#undef RESOLVE
}
else
return -1;
return 0;
}
#endif
static HANDLE open_device(const char *path, BOOL enumerate)
{
HANDLE handle;
DWORD desired_access = (enumerate)? 0: (GENERIC_WRITE | GENERIC_READ);
DWORD share_mode = FILE_SHARE_READ|FILE_SHARE_WRITE;
handle = CreateFileA(path,
desired_access,
share_mode,
NULL,
OPEN_EXISTING,
FILE_FLAG_OVERLAPPED,/*FILE_ATTRIBUTE_NORMAL,*/
0);
return handle;
}
int HID_API_EXPORT hid_init(void)
{
#ifndef HIDAPI_USE_DDK
if (!initialized) {
if (lookup_functions() < 0) {
hid_exit();
return -1;
}
initialized = TRUE;
}
#endif
return 0;
}
int HID_API_EXPORT hid_exit(void)
{
#ifndef HIDAPI_USE_DDK
if (lib_handle)
FreeLibrary(lib_handle);
lib_handle = NULL;
initialized = FALSE;
#endif
return 0;
}
struct hid_device_info HID_API_EXPORT * HID_API_CALL hid_enumerate(unsigned short vendor_id, unsigned short product_id)
{
BOOL res;
struct hid_device_info *root = NULL; /* return object */
struct hid_device_info *cur_dev = NULL;
/* Windows objects for interacting with the driver. */
GUID InterfaceClassGuid = {0x4d1e55b2, 0xf16f, 0x11cf, {0x88, 0xcb, 0x00, 0x11, 0x11, 0x00, 0x00, 0x30} };
SP_DEVINFO_DATA devinfo_data;
SP_DEVICE_INTERFACE_DATA device_interface_data;
SP_DEVICE_INTERFACE_DETAIL_DATA_A *device_interface_detail_data = NULL;
HDEVINFO device_info_set = INVALID_HANDLE_VALUE;
int device_index = 0;
int i;
if (hid_init() < 0)
return NULL;
/* Initialize the Windows objects. */
memset(&devinfo_data, 0x0, sizeof(devinfo_data));
devinfo_data.cbSize = sizeof(SP_DEVINFO_DATA);
device_interface_data.cbSize = sizeof(SP_DEVICE_INTERFACE_DATA);
/* Get information for all the devices belonging to the HID class. */
device_info_set = SetupDiGetClassDevsA(&InterfaceClassGuid, NULL, NULL, DIGCF_PRESENT | DIGCF_DEVICEINTERFACE);
/* Iterate over each device in the HID class, looking for the right one. */
for (;;) {
HANDLE write_handle = INVALID_HANDLE_VALUE;
DWORD required_size = 0;
HIDD_ATTRIBUTES attrib;
res = SetupDiEnumDeviceInterfaces(device_info_set,
NULL,
&InterfaceClassGuid,
device_index,
&device_interface_data);
if (!res) {
/* A return of FALSE from this function means that
there are no more devices. */
break;
}
/* Call with 0-sized detail size, and let the function
tell us how long the detail struct needs to be. The
size is put in &required_size. */
res = SetupDiGetDeviceInterfaceDetailA(device_info_set,
&device_interface_data,
NULL,
0,
&required_size,
NULL);
/* Allocate a long enough structure for device_interface_detail_data. */
device_interface_detail_data = (SP_DEVICE_INTERFACE_DETAIL_DATA_A*) malloc(required_size);
device_interface_detail_data->cbSize = sizeof(SP_DEVICE_INTERFACE_DETAIL_DATA_A);
/* Get the detailed data for this device. The detail data gives us
the device path for this device, which is then passed into
CreateFile() to get a handle to the device. */
res = SetupDiGetDeviceInterfaceDetailA(device_info_set,
&device_interface_data,
device_interface_detail_data,
required_size,
NULL,
NULL);
if (!res) {
/* register_error(dev, "Unable to call SetupDiGetDeviceInterfaceDetail");
Continue to the next device. */
goto cont;
}
/* Make sure this device is of Setup Class "HIDClass" and has a
driver bound to it. */
for (i = 0; ; i++) {
char driver_name[256];
/* Populate devinfo_data. This function will return failure
when there are no more interfaces left. */
res = SetupDiEnumDeviceInfo(device_info_set, i, &devinfo_data);
if (!res)
goto cont;
res = SetupDiGetDeviceRegistryPropertyA(device_info_set, &devinfo_data,
SPDRP_CLASS, NULL, (PBYTE)driver_name, sizeof(driver_name), NULL);
if (!res)
goto cont;
if (strcmp(driver_name, "HIDClass") == 0) {
/* See if there's a driver bound. */
res = SetupDiGetDeviceRegistryPropertyA(device_info_set, &devinfo_data,
SPDRP_DRIVER, NULL, (PBYTE)driver_name, sizeof(driver_name), NULL);
if (res)
break;
}
}
//wprintf(L"HandleName: %s\n", device_interface_detail_data->DevicePath);
/* Open a handle to the device */
write_handle = open_device(device_interface_detail_data->DevicePath, TRUE);
/* Check validity of write_handle. */
if (write_handle == INVALID_HANDLE_VALUE) {
/* Unable to open the device. */
//register_error(dev, "CreateFile");
goto cont_close;
}
/* Get the Vendor ID and Product ID for this device. */
attrib.Size = sizeof(HIDD_ATTRIBUTES);
HidD_GetAttributes(write_handle, &attrib);
//wprintf(L"Product/Vendor: %x %x\n", attrib.ProductID, attrib.VendorID);
/* Check the VID/PID to see if we should add this
device to the enumeration list. */
if ((vendor_id == 0x0 || attrib.VendorID == vendor_id) &&
(product_id == 0x0 || attrib.ProductID == product_id)) {
#define WSTR_LEN 512
const char *str;
struct hid_device_info *tmp;
PHIDP_PREPARSED_DATA pp_data = NULL;
HIDP_CAPS caps;
BOOLEAN res;
NTSTATUS nt_res;
wchar_t wstr[WSTR_LEN]; /* TODO: Determine Size */
size_t len;
/* VID/PID match. Create the record. */
tmp = (struct hid_device_info*) calloc(1, sizeof(struct hid_device_info));
if (cur_dev) {
cur_dev->next = tmp;
}
else {
root = tmp;
}
cur_dev = tmp;
/* Get the Usage Page and Usage for this device. */
res = HidD_GetPreparsedData(write_handle, &pp_data);
if (res) {
nt_res = HidP_GetCaps(pp_data, &caps);
if (nt_res == HIDP_STATUS_SUCCESS) {
cur_dev->usage_page = caps.UsagePage;
cur_dev->usage = caps.Usage;
}
HidD_FreePreparsedData(pp_data);
}
/* Fill out the record */
cur_dev->next = NULL;
str = device_interface_detail_data->DevicePath;
if (str) {
len = strlen(str);
cur_dev->path = (char*) calloc(len+1, sizeof(char));
strncpy(cur_dev->path, str, len+1);
cur_dev->path[len] = '\0';
}
else
cur_dev->path = NULL;
/* Serial Number */
res = HidD_GetSerialNumberString(write_handle, wstr, sizeof(wstr));
wstr[WSTR_LEN-1] = 0x0000;
if (res) {
cur_dev->serial_number = _wcsdup(wstr);
}
/* Manufacturer String */
res = HidD_GetManufacturerString(write_handle, wstr, sizeof(wstr));
wstr[WSTR_LEN-1] = 0x0000;
if (res) {
cur_dev->manufacturer_string = _wcsdup(wstr);
}
/* Product String */
res = HidD_GetProductString(write_handle, wstr, sizeof(wstr));
wstr[WSTR_LEN-1] = 0x0000;
if (res) {
cur_dev->product_string = _wcsdup(wstr);
}
/* VID/PID */
cur_dev->vendor_id = attrib.VendorID;
cur_dev->product_id = attrib.ProductID;
/* Release Number */
cur_dev->release_number = attrib.VersionNumber;
/* Interface Number. It can sometimes be parsed out of the path
on Windows if a device has multiple interfaces. See
http://msdn.microsoft.com/en-us/windows/hardware/gg487473 or
search for "Hardware IDs for HID Devices" at MSDN. If it's not
in the path, it's set to -1. */
cur_dev->interface_number = -1;
if (cur_dev->path) {
char *interface_component = strstr(cur_dev->path, "&mi_");
if (interface_component) {
char *hex_str = interface_component + 4;
char *endptr = NULL;
cur_dev->interface_number = strtol(hex_str, &endptr, 16);
if (endptr == hex_str) {
/* The parsing failed. Set interface_number to -1. */
cur_dev->interface_number = -1;
}
}
}
}
cont_close:
CloseHandle(write_handle);
cont:
/* We no longer need the detail data. It can be freed */
free(device_interface_detail_data);
device_index++;
}
/* Close the device information handle. */
SetupDiDestroyDeviceInfoList(device_info_set);
return root;
}
void HID_API_EXPORT HID_API_CALL hid_free_enumeration(struct hid_device_info *devs)
{
/* TODO: Merge this with the Linux version. This function is platform-independent. */
struct hid_device_info *d = devs;
while (d) {
struct hid_device_info *next = d->next;
free(d->path);
free(d->serial_number);
free(d->manufacturer_string);
free(d->product_string);
free(d);
d = next;
}
}
HID_API_EXPORT hid_device * HID_API_CALL hid_open(unsigned short vendor_id, unsigned short product_id, const wchar_t *serial_number)
{
/* TODO: Merge this functions with the Linux version. This function should be platform independent. */
struct hid_device_info *devs, *cur_dev;
const char *path_to_open = NULL;
hid_device *handle = NULL;
devs = hid_enumerate(vendor_id, product_id);
cur_dev = devs;
while (cur_dev) {
if (cur_dev->vendor_id == vendor_id &&
cur_dev->product_id == product_id) {
if (serial_number) {
if (wcscmp(serial_number, cur_dev->serial_number) == 0) {
path_to_open = cur_dev->path;
break;
}
}
else {
path_to_open = cur_dev->path;
break;
}
}
cur_dev = cur_dev->next;
}
if (path_to_open) {
/* Open the device */
handle = hid_open_path(path_to_open);
}
hid_free_enumeration(devs);
return handle;
}
HID_API_EXPORT hid_device * HID_API_CALL hid_open_path(const char *path)
{
hid_device *dev;
HIDP_CAPS caps;
PHIDP_PREPARSED_DATA pp_data = NULL;
BOOLEAN res;
NTSTATUS nt_res;
if (hid_init() < 0) {
return NULL;
}
dev = new_hid_device();
/* Open a handle to the device */
dev->device_handle = open_device(path, FALSE);
/* Check validity of write_handle. */
if (dev->device_handle == INVALID_HANDLE_VALUE) {
/* Unable to open the device. */
register_error(dev, "CreateFile");
goto err;
}
/* Set the Input Report buffer size to 64 reports. */
res = HidD_SetNumInputBuffers(dev->device_handle, 64);
if (!res) {
register_error(dev, "HidD_SetNumInputBuffers");
goto err;
}
/* Get the Input Report length for the device. */
res = HidD_GetPreparsedData(dev->device_handle, &pp_data);
if (!res) {
register_error(dev, "HidD_GetPreparsedData");
goto err;
}
nt_res = HidP_GetCaps(pp_data, &caps);
if (nt_res != HIDP_STATUS_SUCCESS) {
register_error(dev, "HidP_GetCaps");
goto err_pp_data;
}
dev->output_report_length = caps.OutputReportByteLength;
dev->input_report_length = caps.InputReportByteLength;
HidD_FreePreparsedData(pp_data);
dev->read_buf = (char*) malloc(dev->input_report_length);
return dev;
err_pp_data:
HidD_FreePreparsedData(pp_data);
err:
free_hid_device(dev);
return NULL;
}
int HID_API_EXPORT HID_API_CALL hid_write(hid_device *dev, const unsigned char *data, size_t length)
{
DWORD bytes_written;
BOOL res;
OVERLAPPED ol;
unsigned char *buf;
memset(&ol, 0, sizeof(ol));
/* Make sure the right number of bytes are passed to WriteFile. Windows
expects the number of bytes which are in the _longest_ report (plus
one for the report number) bytes even if the data is a report
which is shorter than that. Windows gives us this value in
caps.OutputReportByteLength. If a user passes in fewer bytes than this,
create a temporary buffer which is the proper size. */
if (length >= dev->output_report_length) {
/* The user passed the right number of bytes. Use the buffer as-is. */
buf = (unsigned char *) data;
} else {
/* Create a temporary buffer and copy the user's data
into it, padding the rest with zeros. */
buf = (unsigned char *) malloc(dev->output_report_length);
memcpy(buf, data, length);
memset(buf + length, 0, dev->output_report_length - length);
length = dev->output_report_length;
}
res = WriteFile(dev->device_handle, buf, length, NULL, &ol);
if (!res) {
if (GetLastError() != ERROR_IO_PENDING) {
/* WriteFile() failed. Return error. */
register_error(dev, "WriteFile");
bytes_written = -1;
goto end_of_function;
}
}
/* Wait here until the write is done. This makes
hid_write() synchronous. */
res = GetOverlappedResult(dev->device_handle, &ol, &bytes_written, TRUE/*wait*/);
if (!res) {
/* The Write operation failed. */
register_error(dev, "WriteFile");
bytes_written = -1;
goto end_of_function;
}
end_of_function:
if (buf != data)
free(buf);
return bytes_written;
}
int HID_API_EXPORT HID_API_CALL hid_read_timeout(hid_device *dev, unsigned char *data, size_t length, int milliseconds)
{
DWORD bytes_read = 0;
size_t copy_len = 0;
BOOL res;
/* Copy the handle for convenience. */
HANDLE ev = dev->ol.hEvent;
if (!dev->read_pending) {
/* Start an Overlapped I/O read. */
dev->read_pending = TRUE;
memset(dev->read_buf, 0, dev->input_report_length);
ResetEvent(ev);
res = ReadFile(dev->device_handle, dev->read_buf, dev->input_report_length, &bytes_read, &dev->ol);
if (!res) {
if (GetLastError() != ERROR_IO_PENDING) {
/* ReadFile() has failed.
Clean up and return error. */
CancelIo(dev->device_handle);
dev->read_pending = FALSE;
goto end_of_function;
}
}
}
if (milliseconds >= 0) {
/* See if there is any data yet. */
res = WaitForSingleObject(ev, milliseconds);
if (res != WAIT_OBJECT_0) {
/* There was no data this time. Return zero bytes available,
but leave the Overlapped I/O running. */
return 0;
}
}
/* Either WaitForSingleObject() told us that ReadFile has completed, or
we are in non-blocking mode. Get the number of bytes read. The actual
data has been copied to the data[] array which was passed to ReadFile(). */
res = GetOverlappedResult(dev->device_handle, &dev->ol, &bytes_read, TRUE/*wait*/);
/* Set pending back to false, even if GetOverlappedResult() returned error. */
dev->read_pending = FALSE;
if (res && bytes_read > 0) {
if (dev->read_buf[0] == 0x0) {
/* If report numbers aren't being used, but Windows sticks a report
number (0x0) on the beginning of the report anyway. To make this
work like the other platforms, and to make it work more like the
HID spec, we'll skip over this byte. */
bytes_read--;
copy_len = length > bytes_read ? bytes_read : length;
memcpy(data, dev->read_buf+1, copy_len);
}
else {
/* Copy the whole buffer, report number and all. */
copy_len = length > bytes_read ? bytes_read : length;
memcpy(data, dev->read_buf, copy_len);
}
}
end_of_function:
if (!res) {
register_error(dev, "GetOverlappedResult");
return -1;
}
return copy_len;
}
int HID_API_EXPORT HID_API_CALL hid_read(hid_device *dev, unsigned char *data, size_t length)
{
return hid_read_timeout(dev, data, length, (dev->blocking)? -1: 0);
}
int HID_API_EXPORT HID_API_CALL hid_set_nonblocking(hid_device *dev, int nonblock)
{
dev->blocking = !nonblock;
return 0; /* Success */
}
int HID_API_EXPORT HID_API_CALL hid_send_feature_report(hid_device *dev, const unsigned char *data, size_t length)
{
BOOL res = HidD_SetFeature(dev->device_handle, (PVOID)data, length);
if (!res) {
register_error(dev, "HidD_SetFeature");
return -1;
}
return length;
}
int HID_API_EXPORT HID_API_CALL hid_get_feature_report(hid_device *dev, unsigned char *data, size_t length)
{
BOOL res;
#if 0
res = HidD_GetFeature(dev->device_handle, data, length);
if (!res) {
register_error(dev, "HidD_GetFeature");
return -1;
}
return 0; /* HidD_GetFeature() doesn't give us an actual length, unfortunately */
#else
DWORD bytes_returned;
OVERLAPPED ol;
memset(&ol, 0, sizeof(ol));
res = DeviceIoControl(dev->device_handle,
IOCTL_HID_GET_FEATURE,
data, length,
data, length,
&bytes_returned, &ol);
if (!res) {
if (GetLastError() != ERROR_IO_PENDING) {
/* DeviceIoControl() failed. Return error. */
register_error(dev, "Send Feature Report DeviceIoControl");
return -1;
}
}
/* Wait here until the write is done. This makes
hid_get_feature_report() synchronous. */
res = GetOverlappedResult(dev->device_handle, &ol, &bytes_returned, TRUE/*wait*/);
if (!res) {
/* The operation failed. */
register_error(dev, "Send Feature Report GetOverLappedResult");
return -1;
}
/* bytes_returned does not include the first byte which contains the
report ID. The data buffer actually contains one more byte than
bytes_returned. */
bytes_returned++;
return bytes_returned;
#endif
}
void HID_API_EXPORT HID_API_CALL hid_close(hid_device *dev)
{
if (!dev)
return;
CancelIo(dev->device_handle);
free_hid_device(dev);
}
int HID_API_EXPORT_CALL HID_API_CALL hid_get_manufacturer_string(hid_device *dev, wchar_t *string, size_t maxlen)
{
BOOL res;
res = HidD_GetManufacturerString(dev->device_handle, string, sizeof(wchar_t) * MIN(maxlen, MAX_STRING_WCHARS));
if (!res) {
register_error(dev, "HidD_GetManufacturerString");
return -1;
}
return 0;
}
int HID_API_EXPORT_CALL HID_API_CALL hid_get_product_string(hid_device *dev, wchar_t *string, size_t maxlen)
{
BOOL res;
res = HidD_GetProductString(dev->device_handle, string, sizeof(wchar_t) * MIN(maxlen, MAX_STRING_WCHARS));
if (!res) {
register_error(dev, "HidD_GetProductString");
return -1;
}
return 0;
}
int HID_API_EXPORT_CALL HID_API_CALL hid_get_serial_number_string(hid_device *dev, wchar_t *string, size_t maxlen)
{
BOOL res;
res = HidD_GetSerialNumberString(dev->device_handle, string, sizeof(wchar_t) * MIN(maxlen, MAX_STRING_WCHARS));
if (!res) {
register_error(dev, "HidD_GetSerialNumberString");
return -1;
}
return 0;
}
int HID_API_EXPORT_CALL HID_API_CALL hid_get_indexed_string(hid_device *dev, int string_index, wchar_t *string, size_t maxlen)
{
BOOL res;
res = HidD_GetIndexedString(dev->device_handle, string_index, string, sizeof(wchar_t) * MIN(maxlen, MAX_STRING_WCHARS));
if (!res) {
register_error(dev, "HidD_GetIndexedString");
return -1;
}
return 0;
}
HID_API_EXPORT const wchar_t * HID_API_CALL hid_error(hid_device *dev)
{
return (wchar_t*)dev->last_error_str;
}
/*#define PICPGM*/
/*#define S11*/
#define P32
#ifdef S11
unsigned short VendorID = 0xa0a0;
unsigned short ProductID = 0x0001;
#endif
#ifdef P32
unsigned short VendorID = 0x04d8;
unsigned short ProductID = 0x3f;
#endif
#ifdef PICPGM
unsigned short VendorID = 0x04d8;
unsigned short ProductID = 0x0033;
#endif
#if 0
int __cdecl main(int argc, char* argv[])
{
int res;
unsigned char buf[65];
UNREFERENCED_PARAMETER(argc);
UNREFERENCED_PARAMETER(argv);
/* Set up the command buffer. */
memset(buf,0x00,sizeof(buf));
buf[0] = 0;
buf[1] = 0x81;
/* Open the device. */
int handle = open(VendorID, ProductID, L"12345");
if (handle < 0)
printf("unable to open device\n");
/* Toggle LED (cmd 0x80) */
buf[1] = 0x80;
res = write(handle, buf, 65);
if (res < 0)
printf("Unable to write()\n");
/* Request state (cmd 0x81) */
buf[1] = 0x81;
write(handle, buf, 65);
if (res < 0)
printf("Unable to write() (2)\n");
/* Read requested state */
read(handle, buf, 65);
if (res < 0)
printf("Unable to read()\n");
/* Print out the returned buffer. */
for (int i = 0; i < 4; i++)
printf("buf[%d]: %d\n", i, buf[i]);
return 0;
}
#endif
#ifdef __cplusplus
} /* extern "C" */
#endif

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#ifndef CONFIG_H
#define CONFIG_H
#endif

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/* -*- Mode: C; indent-tabs-mode:t ; c-basic-offset:8 -*- */
/*
* Hotplug functions for libusb
* Copyright © 2012-2013 Nathan Hjelm <hjelmn@mac.com>
* Copyright © 2012-2013 Peter Stuge <peter@stuge.se>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#include <config.h>
#include <errno.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#ifdef HAVE_SYS_TYPES_H
#include <sys/types.h>
#endif
#include <assert.h>
#include "libusbi.h"
#include "hotplug.h"
/**
* @defgroup libusb_hotplug Device hotplug event notification
* This page details how to use the libusb hotplug interface, where available.
*
* Be mindful that not all platforms currently implement hotplug notification and
* that you should first call on \ref libusb_has_capability() with parameter
* \ref LIBUSB_CAP_HAS_HOTPLUG to confirm that hotplug support is available.
*
* \page libusb_hotplug Device hotplug event notification
*
* \section hotplug_intro Introduction
*
* Version 1.0.16, \ref LIBUSB_API_VERSION >= 0x01000102, has added support
* for hotplug events on <b>some</b> platforms (you should test if your platform
* supports hotplug notification by calling \ref libusb_has_capability() with
* parameter \ref LIBUSB_CAP_HAS_HOTPLUG).
*
* This interface allows you to request notification for the arrival and departure
* of matching USB devices.
*
* To receive hotplug notification you register a callback by calling
* \ref libusb_hotplug_register_callback(). This function will optionally return
* a callback handle that can be passed to \ref libusb_hotplug_deregister_callback().
*
* A callback function must return an int (0 or 1) indicating whether the callback is
* expecting additional events. Returning 0 will rearm the callback and 1 will cause
* the callback to be deregistered. Note that when callbacks are called from
* libusb_hotplug_register_callback() because of the \ref LIBUSB_HOTPLUG_ENUMERATE
* flag, the callback return value is ignored, iow you cannot cause a callback
* to be deregistered by returning 1 when it is called from
* libusb_hotplug_register_callback().
*
* Callbacks for a particular context are automatically deregistered by libusb_exit().
*
* As of 1.0.16 there are two supported hotplug events:
* - LIBUSB_HOTPLUG_EVENT_DEVICE_ARRIVED: A device has arrived and is ready to use
* - LIBUSB_HOTPLUG_EVENT_DEVICE_LEFT: A device has left and is no longer available
*
* A hotplug event can listen for either or both of these events.
*
* Note: If you receive notification that a device has left and you have any
* a libusb_device_handles for the device it is up to you to call libusb_close()
* on each device handle to free up any remaining resources associated with the device.
* Once a device has left any libusb_device_handle associated with the device
* are invalid and will remain so even if the device comes back.
*
* When handling a LIBUSB_HOTPLUG_EVENT_DEVICE_ARRIVED event it is considered
* safe to call any libusb function that takes a libusb_device. It also safe to
* open a device and submit asynchronous transfers. However, most other functions
* that take a libusb_device_handle are <b>not</b> safe to call. Examples of such
* functions are any of the \ref libusb_syncio "synchronous API" functions or the blocking
* functions that retrieve various \ref libusb_desc "USB descriptors". These functions must
* be used outside of the context of the hotplug callback.
*
* When handling a LIBUSB_HOTPLUG_EVENT_DEVICE_LEFT event the only safe function
* is libusb_get_device_descriptor().
*
* The following code provides an example of the usage of the hotplug interface:
\code
#include <stdio.h>
#include <stdlib.h>
#include <time.h>
#include <libusb.h>
static int count = 0;
int hotplug_callback(struct libusb_context *ctx, struct libusb_device *dev,
libusb_hotplug_event event, void *user_data) {
static libusb_device_handle *dev_handle = NULL;
struct libusb_device_descriptor desc;
int rc;
(void)libusb_get_device_descriptor(dev, &desc);
if (LIBUSB_HOTPLUG_EVENT_DEVICE_ARRIVED == event) {
rc = libusb_open(dev, &dev_handle);
if (LIBUSB_SUCCESS != rc) {
printf("Could not open USB device\n");
}
} else if (LIBUSB_HOTPLUG_EVENT_DEVICE_LEFT == event) {
if (dev_handle) {
libusb_close(dev_handle);
dev_handle = NULL;
}
} else {
printf("Unhandled event %d\n", event);
}
count++;
return 0;
}
int main (void) {
libusb_hotplug_callback_handle callback_handle;
int rc;
libusb_init(NULL);
rc = libusb_hotplug_register_callback(NULL, LIBUSB_HOTPLUG_EVENT_DEVICE_ARRIVED |
LIBUSB_HOTPLUG_EVENT_DEVICE_LEFT, 0, 0x045a, 0x5005,
LIBUSB_HOTPLUG_MATCH_ANY, hotplug_callback, NULL,
&callback_handle);
if (LIBUSB_SUCCESS != rc) {
printf("Error creating a hotplug callback\n");
libusb_exit(NULL);
return EXIT_FAILURE;
}
while (count < 2) {
libusb_handle_events_completed(NULL, NULL);
nanosleep(&(struct timespec){0, 10000000UL}, NULL);
}
libusb_hotplug_deregister_callback(NULL, callback_handle);
libusb_exit(NULL);
return 0;
}
\endcode
*/
static int usbi_hotplug_match_cb (struct libusb_context *ctx,
struct libusb_device *dev, libusb_hotplug_event event,
struct libusb_hotplug_callback *hotplug_cb)
{
/* Handle lazy deregistration of callback */
if (hotplug_cb->needs_free) {
/* Free callback */
return 1;
}
if (!(hotplug_cb->events & event)) {
return 0;
}
if (LIBUSB_HOTPLUG_MATCH_ANY != hotplug_cb->vendor_id &&
hotplug_cb->vendor_id != dev->device_descriptor.idVendor) {
return 0;
}
if (LIBUSB_HOTPLUG_MATCH_ANY != hotplug_cb->product_id &&
hotplug_cb->product_id != dev->device_descriptor.idProduct) {
return 0;
}
if (LIBUSB_HOTPLUG_MATCH_ANY != hotplug_cb->dev_class &&
hotplug_cb->dev_class != dev->device_descriptor.bDeviceClass) {
return 0;
}
return hotplug_cb->cb (ctx, dev, event, hotplug_cb->user_data);
}
void usbi_hotplug_match(struct libusb_context *ctx, struct libusb_device *dev,
libusb_hotplug_event event)
{
struct libusb_hotplug_callback *hotplug_cb, *next;
int ret;
usbi_mutex_lock(&ctx->hotplug_cbs_lock);
list_for_each_entry_safe(hotplug_cb, next, &ctx->hotplug_cbs, list, struct libusb_hotplug_callback) {
usbi_mutex_unlock(&ctx->hotplug_cbs_lock);
ret = usbi_hotplug_match_cb (ctx, dev, event, hotplug_cb);
usbi_mutex_lock(&ctx->hotplug_cbs_lock);
if (ret) {
list_del(&hotplug_cb->list);
free(hotplug_cb);
}
}
usbi_mutex_unlock(&ctx->hotplug_cbs_lock);
/* the backend is expected to call the callback for each active transfer */
}
void usbi_hotplug_notification(struct libusb_context *ctx, struct libusb_device *dev,
libusb_hotplug_event event)
{
int pending_events;
libusb_hotplug_message *message = calloc(1, sizeof(*message));
if (!message) {
usbi_err(ctx, "error allocating hotplug message");
return;
}
message->event = event;
message->device = dev;
/* Take the event data lock and add this message to the list.
* Only signal an event if there are no prior pending events. */
usbi_mutex_lock(&ctx->event_data_lock);
pending_events = usbi_pending_events(ctx);
list_add_tail(&message->list, &ctx->hotplug_msgs);
if (!pending_events)
usbi_signal_event(ctx);
usbi_mutex_unlock(&ctx->event_data_lock);
}
int API_EXPORTED libusb_hotplug_register_callback(libusb_context *ctx,
libusb_hotplug_event events, libusb_hotplug_flag flags,
int vendor_id, int product_id, int dev_class,
libusb_hotplug_callback_fn cb_fn, void *user_data,
libusb_hotplug_callback_handle *callback_handle)
{
libusb_hotplug_callback *new_callback;
static int handle_id = 1;
/* check for hotplug support */
if (!libusb_has_capability(LIBUSB_CAP_HAS_HOTPLUG)) {
return LIBUSB_ERROR_NOT_SUPPORTED;
}
/* check for sane values */
if ((LIBUSB_HOTPLUG_MATCH_ANY != vendor_id && (~0xffff & vendor_id)) ||
(LIBUSB_HOTPLUG_MATCH_ANY != product_id && (~0xffff & product_id)) ||
(LIBUSB_HOTPLUG_MATCH_ANY != dev_class && (~0xff & dev_class)) ||
!cb_fn) {
return LIBUSB_ERROR_INVALID_PARAM;
}
USBI_GET_CONTEXT(ctx);
new_callback = (libusb_hotplug_callback *)calloc(1, sizeof (*new_callback));
if (!new_callback) {
return LIBUSB_ERROR_NO_MEM;
}
new_callback->ctx = ctx;
new_callback->vendor_id = vendor_id;
new_callback->product_id = product_id;
new_callback->dev_class = dev_class;
new_callback->flags = flags;
new_callback->events = events;
new_callback->cb = cb_fn;
new_callback->user_data = user_data;
new_callback->needs_free = 0;
usbi_mutex_lock(&ctx->hotplug_cbs_lock);
/* protect the handle by the context hotplug lock. it doesn't matter if the same handle
* is used for different contexts only that the handle is unique for this context */
new_callback->handle = handle_id++;
list_add(&new_callback->list, &ctx->hotplug_cbs);
usbi_mutex_unlock(&ctx->hotplug_cbs_lock);
if (flags & LIBUSB_HOTPLUG_ENUMERATE) {
int i, len;
struct libusb_device **devs;
len = (int) libusb_get_device_list(ctx, &devs);
if (len < 0) {
libusb_hotplug_deregister_callback(ctx,
new_callback->handle);
return len;
}
for (i = 0; i < len; i++) {
usbi_hotplug_match_cb(ctx, devs[i],
LIBUSB_HOTPLUG_EVENT_DEVICE_ARRIVED,
new_callback);
}
libusb_free_device_list(devs, 1);
}
if (callback_handle)
*callback_handle = new_callback->handle;
return LIBUSB_SUCCESS;
}
void API_EXPORTED libusb_hotplug_deregister_callback (struct libusb_context *ctx,
libusb_hotplug_callback_handle callback_handle)
{
struct libusb_hotplug_callback *hotplug_cb;
/* check for hotplug support */
if (!libusb_has_capability(LIBUSB_CAP_HAS_HOTPLUG)) {
return;
}
USBI_GET_CONTEXT(ctx);
usbi_mutex_lock(&ctx->hotplug_cbs_lock);
list_for_each_entry(hotplug_cb, &ctx->hotplug_cbs, list,
struct libusb_hotplug_callback) {
if (callback_handle == hotplug_cb->handle) {
/* Mark this callback for deregistration */
hotplug_cb->needs_free = 1;
}
}
usbi_mutex_unlock(&ctx->hotplug_cbs_lock);
usbi_hotplug_notification(ctx, NULL, 0);
}
void usbi_hotplug_deregister_all(struct libusb_context *ctx) {
struct libusb_hotplug_callback *hotplug_cb, *next;
usbi_mutex_lock(&ctx->hotplug_cbs_lock);
list_for_each_entry_safe(hotplug_cb, next, &ctx->hotplug_cbs, list,
struct libusb_hotplug_callback) {
list_del(&hotplug_cb->list);
free(hotplug_cb);
}
usbi_mutex_unlock(&ctx->hotplug_cbs_lock);
}

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/* -*- Mode: C; indent-tabs-mode:t ; c-basic-offset:8 -*- */
/*
* Hotplug support for libusb
* Copyright © 2012-2013 Nathan Hjelm <hjelmn@mac.com>
* Copyright © 2012-2013 Peter Stuge <peter@stuge.se>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#if !defined(USBI_HOTPLUG_H)
#define USBI_HOTPLUG_H
#ifndef LIBUSBI_H
#include "libusbi.h"
#endif
/** \ingroup hotplug
* The hotplug callback structure. The user populates this structure with
* libusb_hotplug_prepare_callback() and then calls libusb_hotplug_register_callback()
* to receive notification of hotplug events.
*/
struct libusb_hotplug_callback {
/** Context this callback is associated with */
struct libusb_context *ctx;
/** Vendor ID to match or LIBUSB_HOTPLUG_MATCH_ANY */
int vendor_id;
/** Product ID to match or LIBUSB_HOTPLUG_MATCH_ANY */
int product_id;
/** Device class to match or LIBUSB_HOTPLUG_MATCH_ANY */
int dev_class;
/** Hotplug callback flags */
libusb_hotplug_flag flags;
/** Event(s) that will trigger this callback */
libusb_hotplug_event events;
/** Callback function to invoke for matching event/device */
libusb_hotplug_callback_fn cb;
/** Handle for this callback (used to match on deregister) */
libusb_hotplug_callback_handle handle;
/** User data that will be passed to the callback function */
void *user_data;
/** Callback is marked for deletion */
int needs_free;
/** List this callback is registered in (ctx->hotplug_cbs) */
struct list_head list;
};
typedef struct libusb_hotplug_callback libusb_hotplug_callback;
struct libusb_hotplug_message {
/** The hotplug event that occurred */
libusb_hotplug_event event;
/** The device for which this hotplug event occurred */
struct libusb_device *device;
/** List this message is contained in (ctx->hotplug_msgs) */
struct list_head list;
};
typedef struct libusb_hotplug_message libusb_hotplug_message;
void usbi_hotplug_deregister_all(struct libusb_context *ctx);
void usbi_hotplug_match(struct libusb_context *ctx, struct libusb_device *dev,
libusb_hotplug_event event);
void usbi_hotplug_notification(struct libusb_context *ctx, struct libusb_device *dev,
libusb_hotplug_event event);
#endif

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/*
* darwin backend for libusb 1.0
* Copyright © 2008-2015 Nathan Hjelm <hjelmn@users.sourceforge.net>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#if !defined(LIBUSB_DARWIN_H)
#define LIBUSB_DARWIN_H
#include "libusbi.h"
#include <IOKit/IOTypes.h>
#include <IOKit/IOCFBundle.h>
#include <IOKit/usb/IOUSBLib.h>
#include <IOKit/IOCFPlugIn.h>
/* IOUSBInterfaceInferface */
#if defined (kIOUSBInterfaceInterfaceID700) && MAC_OS_X_VERSION_MIN_REQUIRED >= MAC_OS_X_VERSION_10_9
#define usb_interface_t IOUSBInterfaceInterface700
#define InterfaceInterfaceID kIOUSBInterfaceInterfaceID700
#define InterfaceVersion 700
#elif defined (kIOUSBInterfaceInterfaceID550) && MAC_OS_X_VERSION_MIN_REQUIRED >= MAC_OS_X_VERSION_10_9
#define usb_interface_t IOUSBInterfaceInterface550
#define InterfaceInterfaceID kIOUSBInterfaceInterfaceID550
#define InterfaceVersion 550
#elif defined (kIOUSBInterfaceInterfaceID500)
#define usb_interface_t IOUSBInterfaceInterface500
#define InterfaceInterfaceID kIOUSBInterfaceInterfaceID500
#define InterfaceVersion 500
#elif defined (kIOUSBInterfaceInterfaceID300)
#define usb_interface_t IOUSBInterfaceInterface300
#define InterfaceInterfaceID kIOUSBInterfaceInterfaceID300
#define InterfaceVersion 300
#elif defined (kIOUSBInterfaceInterfaceID245)
#define usb_interface_t IOUSBInterfaceInterface245
#define InterfaceInterfaceID kIOUSBInterfaceInterfaceID245
#define InterfaceVersion 245
#elif defined (kIOUSBInterfaceInterfaceID220)
#define usb_interface_t IOUSBInterfaceInterface220
#define InterfaceInterfaceID kIOUSBInterfaceInterfaceID220
#define InterfaceVersion 220
#else
#error "IOUSBFamily is too old. Please upgrade your OS"
#endif
/* IOUSBDeviceInterface */
#if defined (kIOUSBDeviceInterfaceID500) && MAC_OS_X_VERSION_MIN_REQUIRED >= MAC_OS_X_VERSION_10_9
#define usb_device_t IOUSBDeviceInterface500
#define DeviceInterfaceID kIOUSBDeviceInterfaceID500
#define DeviceVersion 500
#elif defined (kIOUSBDeviceInterfaceID320)
#define usb_device_t IOUSBDeviceInterface320
#define DeviceInterfaceID kIOUSBDeviceInterfaceID320
#define DeviceVersion 320
#elif defined (kIOUSBDeviceInterfaceID300)
#define usb_device_t IOUSBDeviceInterface300
#define DeviceInterfaceID kIOUSBDeviceInterfaceID300
#define DeviceVersion 300
#elif defined (kIOUSBDeviceInterfaceID245)
#define usb_device_t IOUSBDeviceInterface245
#define DeviceInterfaceID kIOUSBDeviceInterfaceID245
#define DeviceVersion 245
#elif defined (kIOUSBDeviceInterfaceID220)
#define usb_device_t IOUSBDeviceInterface197
#define DeviceInterfaceID kIOUSBDeviceInterfaceID197
#define DeviceVersion 197
#else
#error "IOUSBFamily is too old. Please upgrade your OS"
#endif
#if !defined(IO_OBJECT_NULL)
#define IO_OBJECT_NULL ((io_object_t) 0)
#endif
typedef IOCFPlugInInterface *io_cf_plugin_ref_t;
typedef IONotificationPortRef io_notification_port_t;
/* private structures */
struct darwin_cached_device {
struct list_head list;
IOUSBDeviceDescriptor dev_descriptor;
UInt32 location;
UInt64 parent_session;
UInt64 session;
UInt16 address;
char sys_path[21];
usb_device_t **device;
int open_count;
UInt8 first_config, active_config, port;
int can_enumerate;
int refcount;
};
struct darwin_device_priv {
struct darwin_cached_device *dev;
};
struct darwin_device_handle_priv {
int is_open;
CFRunLoopSourceRef cfSource;
struct darwin_interface {
usb_interface_t **interface;
uint8_t num_endpoints;
CFRunLoopSourceRef cfSource;
uint64_t frames[256];
uint8_t endpoint_addrs[USB_MAXENDPOINTS];
} interfaces[USB_MAXINTERFACES];
};
struct darwin_transfer_priv {
/* Isoc */
IOUSBIsocFrame *isoc_framelist;
int num_iso_packets;
/* Control */
IOUSBDevRequestTO req;
/* Bulk */
/* Completion status */
IOReturn result;
UInt32 size;
};
#endif

367
vendor/github.com/karalabe/hid/libusb/libusb/os/haiku_pollfs.cpp generated vendored Normal file
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/*
* Copyright 2007-2008, Haiku Inc. All rights reserved.
* Distributed under the terms of the MIT License.
*
* Authors:
* Michael Lotz <mmlr@mlotz.ch>
*/
#include "haiku_usb.h"
#include <cstdio>
#include <Directory.h>
#include <Entry.h>
#include <Looper.h>
#include <Messenger.h>
#include <Node.h>
#include <NodeMonitor.h>
#include <Path.h>
#include <cstring>
class WatchedEntry {
public:
WatchedEntry(BMessenger *, entry_ref *);
~WatchedEntry();
bool EntryCreated(entry_ref *ref);
bool EntryRemoved(ino_t node);
bool InitCheck();
private:
BMessenger* fMessenger;
node_ref fNode;
bool fIsDirectory;
USBDevice* fDevice;
WatchedEntry* fEntries;
WatchedEntry* fLink;
bool fInitCheck;
};
class RosterLooper : public BLooper {
public:
RosterLooper(USBRoster *);
void Stop();
virtual void MessageReceived(BMessage *);
bool InitCheck();
private:
USBRoster* fRoster;
WatchedEntry* fRoot;
BMessenger* fMessenger;
bool fInitCheck;
};
WatchedEntry::WatchedEntry(BMessenger *messenger, entry_ref *ref)
: fMessenger(messenger),
fIsDirectory(false),
fDevice(NULL),
fEntries(NULL),
fLink(NULL),
fInitCheck(false)
{
BEntry entry(ref);
entry.GetNodeRef(&fNode);
BDirectory directory;
if (entry.IsDirectory() && directory.SetTo(ref) >= B_OK) {
fIsDirectory = true;
while (directory.GetNextEntry(&entry) >= B_OK) {
if (entry.GetRef(ref) < B_OK)
continue;
WatchedEntry *child = new(std::nothrow) WatchedEntry(fMessenger, ref);
if (child == NULL)
continue;
if (child->InitCheck() == false) {
delete child;
continue;
}
child->fLink = fEntries;
fEntries = child;
}
watch_node(&fNode, B_WATCH_DIRECTORY, *fMessenger);
}
else {
if (strncmp(ref->name, "raw", 3) == 0)
return;
BPath path, parent_path;
entry.GetPath(&path);
fDevice = new(std::nothrow) USBDevice(path.Path());
if (fDevice != NULL && fDevice->InitCheck() == true) {
// Add this new device to each active context's device list
struct libusb_context *ctx;
unsigned long session_id = (unsigned long)&fDevice;
usbi_mutex_lock(&active_contexts_lock);
list_for_each_entry(ctx, &active_contexts_list, list, struct libusb_context) {
struct libusb_device *dev = usbi_get_device_by_session_id(ctx, session_id);
if (dev) {
usbi_dbg("using previously allocated device with location %lu", session_id);
libusb_unref_device(dev);
continue;
}
usbi_dbg("allocating new device with location %lu", session_id);
dev = usbi_alloc_device(ctx, session_id);
if (!dev) {
usbi_dbg("device allocation failed");
continue;
}
*((USBDevice **)dev->os_priv) = fDevice;
// Calculate pseudo-device-address
int addr, tmp;
if (strcmp(path.Leaf(), "hub") == 0)
tmp = 100; //Random Number
else
sscanf(path.Leaf(), "%d", &tmp);
addr = tmp + 1;
path.GetParent(&parent_path);
while (strcmp(parent_path.Leaf(), "usb") != 0) {
sscanf(parent_path.Leaf(), "%d", &tmp);
addr += tmp + 1;
parent_path.GetParent(&parent_path);
}
sscanf(path.Path(), "/dev/bus/usb/%d", &dev->bus_number);
dev->device_address = addr - (dev->bus_number + 1);
if (usbi_sanitize_device(dev) < 0) {
usbi_dbg("device sanitization failed");
libusb_unref_device(dev);
continue;
}
usbi_connect_device(dev);
}
usbi_mutex_unlock(&active_contexts_lock);
}
else if (fDevice) {
delete fDevice;
fDevice = NULL;
return;
}
}
fInitCheck = true;
}
WatchedEntry::~WatchedEntry()
{
if (fIsDirectory) {
watch_node(&fNode, B_STOP_WATCHING, *fMessenger);
WatchedEntry *child = fEntries;
while (child) {
WatchedEntry *next = child->fLink;
delete child;
child = next;
}
}
if (fDevice) {
// Remove this device from each active context's device list
struct libusb_context *ctx;
struct libusb_device *dev;
unsigned long session_id = (unsigned long)&fDevice;
usbi_mutex_lock(&active_contexts_lock);
list_for_each_entry(ctx, &active_contexts_list, list, struct libusb_context) {
dev = usbi_get_device_by_session_id(ctx, session_id);
if (dev != NULL) {
usbi_disconnect_device(dev);
libusb_unref_device(dev);
} else {
usbi_dbg("device with location %lu not found", session_id);
}
}
usbi_mutex_static_unlock(&active_contexts_lock);
delete fDevice;
}
}
bool
WatchedEntry::EntryCreated(entry_ref *ref)
{
if (!fIsDirectory)
return false;
if (ref->directory != fNode.node) {
WatchedEntry *child = fEntries;
while (child) {
if (child->EntryCreated(ref))
return true;
child = child->fLink;
}
return false;
}
WatchedEntry *child = new(std::nothrow) WatchedEntry(fMessenger, ref);
if (child == NULL)
return false;
child->fLink = fEntries;
fEntries = child;
return true;
}
bool
WatchedEntry::EntryRemoved(ino_t node)
{
if (!fIsDirectory)
return false;
WatchedEntry *child = fEntries;
WatchedEntry *lastChild = NULL;
while (child) {
if (child->fNode.node == node) {
if (lastChild)
lastChild->fLink = child->fLink;
else
fEntries = child->fLink;
delete child;
return true;
}
if (child->EntryRemoved(node))
return true;
lastChild = child;
child = child->fLink;
}
return false;
}
bool
WatchedEntry::InitCheck()
{
return fInitCheck;
}
RosterLooper::RosterLooper(USBRoster *roster)
: BLooper("LibusbRoster Looper"),
fRoster(roster),
fRoot(NULL),
fMessenger(NULL),
fInitCheck(false)
{
BEntry entry("/dev/bus/usb");
if (!entry.Exists()) {
usbi_err(NULL, "usb_raw not published");
return;
}
Run();
fMessenger = new(std::nothrow) BMessenger(this);
if (fMessenger == NULL) {
usbi_err(NULL, "error creating BMessenger object");
return;
}
if (Lock()) {
entry_ref ref;
entry.GetRef(&ref);
fRoot = new(std::nothrow) WatchedEntry(fMessenger, &ref);
Unlock();
if (fRoot == NULL)
return;
if (fRoot->InitCheck() == false) {
delete fRoot;
fRoot = NULL;
return;
}
}
fInitCheck = true;
}
void
RosterLooper::Stop()
{
Lock();
delete fRoot;
delete fMessenger;
Quit();
}
void
RosterLooper::MessageReceived(BMessage *message)
{
int32 opcode;
if (message->FindInt32("opcode", &opcode) < B_OK)
return;
switch (opcode) {
case B_ENTRY_CREATED:
{
dev_t device;
ino_t directory;
const char *name;
if (message->FindInt32("device", &device) < B_OK ||
message->FindInt64("directory", &directory) < B_OK ||
message->FindString("name", &name) < B_OK)
break;
entry_ref ref(device, directory, name);
fRoot->EntryCreated(&ref);
break;
}
case B_ENTRY_REMOVED:
{
ino_t node;
if (message->FindInt64("node", &node) < B_OK)
break;
fRoot->EntryRemoved(node);
break;
}
}
}
bool
RosterLooper::InitCheck()
{
return fInitCheck;
}
USBRoster::USBRoster()
: fLooper(NULL)
{
}
USBRoster::~USBRoster()
{
Stop();
}
int
USBRoster::Start()
{
if (fLooper == NULL) {
fLooper = new(std::nothrow) RosterLooper(this);
if (fLooper == NULL || ((RosterLooper *)fLooper)->InitCheck() == false) {
if (fLooper)
fLooper = NULL;
return LIBUSB_ERROR_OTHER;
}
}
return LIBUSB_SUCCESS;
}
void
USBRoster::Stop()
{
if (fLooper) {
((RosterLooper *)fLooper)->Stop();
fLooper = NULL;
}
}

112
vendor/github.com/karalabe/hid/libusb/libusb/os/haiku_usb.h generated vendored Normal file
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/*
* Haiku Backend for libusb
* Copyright © 2014 Akshay Jaggi <akshay1994.leo@gmail.com>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#include <List.h>
#include <Locker.h>
#include <Autolock.h>
#include <USBKit.h>
#include <map>
#include "libusbi.h"
#include "haiku_usb_raw.h"
using namespace std;
class USBDevice;
class USBDeviceHandle;
class USBTransfer;
class USBDevice {
public:
USBDevice(const char *);
virtual ~USBDevice();
const char* Location() const;
uint8 CountConfigurations() const;
const usb_device_descriptor* Descriptor() const;
const usb_configuration_descriptor* ConfigurationDescriptor(uint32) const;
const usb_configuration_descriptor* ActiveConfiguration() const;
uint8 EndpointToIndex(uint8) const;
uint8 EndpointToInterface(uint8) const;
int ClaimInterface(int);
int ReleaseInterface(int);
int CheckInterfacesFree(int);
int SetActiveConfiguration(int);
int ActiveConfigurationIndex() const;
bool InitCheck();
private:
int Initialise();
unsigned int fClaimedInterfaces; // Max Interfaces can be 32. Using a bitmask
usb_device_descriptor fDeviceDescriptor;
unsigned char** fConfigurationDescriptors;
int fActiveConfiguration;
char* fPath;
map<uint8,uint8> fConfigToIndex;
map<uint8,uint8>* fEndpointToIndex;
map<uint8,uint8>* fEndpointToInterface;
bool fInitCheck;
};
class USBDeviceHandle {
public:
USBDeviceHandle(USBDevice *dev);
virtual ~USBDeviceHandle();
int ClaimInterface(int);
int ReleaseInterface(int);
int SetConfiguration(int);
int SetAltSetting(int, int);
status_t SubmitTransfer(struct usbi_transfer *);
status_t CancelTransfer(USBTransfer *);
bool InitCheck();
private:
int fRawFD;
static status_t TransfersThread(void *);
void TransfersWorker();
USBDevice* fUSBDevice;
unsigned int fClaimedInterfaces;
BList fTransfers;
BLocker fTransfersLock;
sem_id fTransfersSem;
thread_id fTransfersThread;
bool fInitCheck;
};
class USBTransfer {
public:
USBTransfer(struct usbi_transfer *, USBDevice *);
virtual ~USBTransfer();
void Do(int);
struct usbi_transfer* UsbiTransfer();
void SetCancelled();
bool IsCancelled();
private:
struct usbi_transfer* fUsbiTransfer;
struct libusb_transfer* fLibusbTransfer;
USBDevice* fUSBDevice;
BLocker fStatusLock;
bool fCancelled;
};
class USBRoster {
public:
USBRoster();
virtual ~USBRoster();
int Start();
void Stop();
private:
void* fLooper;
};

517
vendor/github.com/karalabe/hid/libusb/libusb/os/haiku_usb_backend.cpp generated vendored Normal file
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/*
* Haiku Backend for libusb
* Copyright © 2014 Akshay Jaggi <akshay1994.leo@gmail.com>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#include <unistd.h>
#include <string.h>
#include <stdlib.h>
#include <new>
#include <vector>
#include "haiku_usb.h"
int _errno_to_libusb(int status)
{
return status;
}
USBTransfer::USBTransfer(struct usbi_transfer *itransfer, USBDevice *device)
{
fUsbiTransfer = itransfer;
fLibusbTransfer = USBI_TRANSFER_TO_LIBUSB_TRANSFER(itransfer);
fUSBDevice = device;
fCancelled = false;
}
USBTransfer::~USBTransfer()
{
}
struct usbi_transfer *
USBTransfer::UsbiTransfer()
{
return fUsbiTransfer;
}
void
USBTransfer::SetCancelled()
{
fCancelled = true;
}
bool
USBTransfer::IsCancelled()
{
return fCancelled;
}
void
USBTransfer::Do(int fRawFD)
{
switch (fLibusbTransfer->type) {
case LIBUSB_TRANSFER_TYPE_CONTROL:
{
struct libusb_control_setup *setup = (struct libusb_control_setup *)fLibusbTransfer->buffer;
usb_raw_command command;
command.control.request_type = setup->bmRequestType;
command.control.request = setup->bRequest;
command.control.value = setup->wValue;
command.control.index = setup->wIndex;
command.control.length = setup->wLength;
command.control.data = fLibusbTransfer->buffer + LIBUSB_CONTROL_SETUP_SIZE;
if (fCancelled)
break;
if (ioctl(fRawFD, B_USB_RAW_COMMAND_CONTROL_TRANSFER, &command, sizeof(command)) ||
command.control.status != B_USB_RAW_STATUS_SUCCESS) {
fUsbiTransfer->transferred = -1;
usbi_err(TRANSFER_CTX(fLibusbTransfer), "failed control transfer");
break;
}
fUsbiTransfer->transferred = command.control.length;
}
break;
case LIBUSB_TRANSFER_TYPE_BULK:
case LIBUSB_TRANSFER_TYPE_INTERRUPT:
{
usb_raw_command command;
command.transfer.interface = fUSBDevice->EndpointToInterface(fLibusbTransfer->endpoint);
command.transfer.endpoint = fUSBDevice->EndpointToIndex(fLibusbTransfer->endpoint);
command.transfer.data = fLibusbTransfer->buffer;
command.transfer.length = fLibusbTransfer->length;
if (fCancelled)
break;
if (fLibusbTransfer->type == LIBUSB_TRANSFER_TYPE_BULK) {
if (ioctl(fRawFD, B_USB_RAW_COMMAND_BULK_TRANSFER, &command, sizeof(command)) ||
command.transfer.status != B_USB_RAW_STATUS_SUCCESS) {
fUsbiTransfer->transferred = -1;
usbi_err(TRANSFER_CTX(fLibusbTransfer), "failed bulk transfer");
break;
}
}
else {
if (ioctl(fRawFD, B_USB_RAW_COMMAND_INTERRUPT_TRANSFER, &command, sizeof(command)) ||
command.transfer.status != B_USB_RAW_STATUS_SUCCESS) {
fUsbiTransfer->transferred = -1;
usbi_err(TRANSFER_CTX(fLibusbTransfer), "failed interrupt transfer");
break;
}
}
fUsbiTransfer->transferred = command.transfer.length;
}
break;
// IsochronousTransfers not tested
case LIBUSB_TRANSFER_TYPE_ISOCHRONOUS:
{
usb_raw_command command;
command.isochronous.interface = fUSBDevice->EndpointToInterface(fLibusbTransfer->endpoint);
command.isochronous.endpoint = fUSBDevice->EndpointToIndex(fLibusbTransfer->endpoint);
command.isochronous.data = fLibusbTransfer->buffer;
command.isochronous.length = fLibusbTransfer->length;
command.isochronous.packet_count = fLibusbTransfer->num_iso_packets;
int i;
usb_iso_packet_descriptor *packetDescriptors = new usb_iso_packet_descriptor[fLibusbTransfer->num_iso_packets];
for (i = 0; i < fLibusbTransfer->num_iso_packets; i++) {
if ((int16)(fLibusbTransfer->iso_packet_desc[i]).length != (fLibusbTransfer->iso_packet_desc[i]).length) {
fUsbiTransfer->transferred = -1;
usbi_err(TRANSFER_CTX(fLibusbTransfer), "failed isochronous transfer");
break;
}
packetDescriptors[i].request_length = (int16)(fLibusbTransfer->iso_packet_desc[i]).length;
}
if (i < fLibusbTransfer->num_iso_packets)
break; // TODO Handle this error
command.isochronous.packet_descriptors = packetDescriptors;
if (fCancelled)
break;
if (ioctl(fRawFD, B_USB_RAW_COMMAND_ISOCHRONOUS_TRANSFER, &command, sizeof(command)) ||
command.isochronous.status != B_USB_RAW_STATUS_SUCCESS) {
fUsbiTransfer->transferred = -1;
usbi_err(TRANSFER_CTX(fLibusbTransfer), "failed isochronous transfer");
break;
}
for (i = 0; i < fLibusbTransfer->num_iso_packets; i++) {
(fLibusbTransfer->iso_packet_desc[i]).actual_length = packetDescriptors[i].actual_length;
switch (packetDescriptors[i].status) {
case B_OK:
(fLibusbTransfer->iso_packet_desc[i]).status = LIBUSB_TRANSFER_COMPLETED;
break;
default:
(fLibusbTransfer->iso_packet_desc[i]).status = LIBUSB_TRANSFER_ERROR;
break;
}
}
delete[] packetDescriptors;
// Do we put the length of transfer here, for isochronous transfers?
fUsbiTransfer->transferred = command.transfer.length;
}
break;
default:
usbi_err(TRANSFER_CTX(fLibusbTransfer), "Unknown type of transfer");
}
}
bool
USBDeviceHandle::InitCheck()
{
return fInitCheck;
}
status_t
USBDeviceHandle::TransfersThread(void *self)
{
USBDeviceHandle *handle = (USBDeviceHandle *)self;
handle->TransfersWorker();
return B_OK;
}
void
USBDeviceHandle::TransfersWorker()
{
while (true) {
status_t status = acquire_sem(fTransfersSem);
if (status == B_BAD_SEM_ID)
break;
if (status == B_INTERRUPTED)
continue;
fTransfersLock.Lock();
USBTransfer *fPendingTransfer = (USBTransfer *) fTransfers.RemoveItem((int32)0);
fTransfersLock.Unlock();
fPendingTransfer->Do(fRawFD);
usbi_signal_transfer_completion(fPendingTransfer->UsbiTransfer());
}
}
status_t
USBDeviceHandle::SubmitTransfer(struct usbi_transfer *itransfer)
{
USBTransfer *transfer = new USBTransfer(itransfer, fUSBDevice);
*((USBTransfer **)usbi_transfer_get_os_priv(itransfer)) = transfer;
BAutolock locker(fTransfersLock);
fTransfers.AddItem(transfer);
release_sem(fTransfersSem);
return LIBUSB_SUCCESS;
}
status_t
USBDeviceHandle::CancelTransfer(USBTransfer *transfer)
{
transfer->SetCancelled();
fTransfersLock.Lock();
bool removed = fTransfers.RemoveItem(transfer);
fTransfersLock.Unlock();
if(removed)
usbi_signal_transfer_completion(transfer->UsbiTransfer());
return LIBUSB_SUCCESS;
}
USBDeviceHandle::USBDeviceHandle(USBDevice *dev)
:
fTransfersThread(-1),
fUSBDevice(dev),
fClaimedInterfaces(0),
fInitCheck(false)
{
fRawFD = open(dev->Location(), O_RDWR | O_CLOEXEC);
if (fRawFD < 0) {
usbi_err(NULL,"failed to open device");
return;
}
fTransfersSem = create_sem(0, "Transfers Queue Sem");
fTransfersThread = spawn_thread(TransfersThread, "Transfer Worker", B_NORMAL_PRIORITY, this);
resume_thread(fTransfersThread);
fInitCheck = true;
}
USBDeviceHandle::~USBDeviceHandle()
{
if (fRawFD > 0)
close(fRawFD);
for(int i = 0; i < 32; i++) {
if (fClaimedInterfaces & (1 << i))
ReleaseInterface(i);
}
delete_sem(fTransfersSem);
if (fTransfersThread > 0)
wait_for_thread(fTransfersThread, NULL);
}
int
USBDeviceHandle::ClaimInterface(int inumber)
{
int status = fUSBDevice->ClaimInterface(inumber);
if (status == LIBUSB_SUCCESS)
fClaimedInterfaces |= (1 << inumber);
return status;
}
int
USBDeviceHandle::ReleaseInterface(int inumber)
{
fUSBDevice->ReleaseInterface(inumber);
fClaimedInterfaces &= ~(1 << inumber);
return LIBUSB_SUCCESS;
}
int
USBDeviceHandle::SetConfiguration(int config)
{
int config_index = fUSBDevice->CheckInterfacesFree(config);
if(config_index == LIBUSB_ERROR_BUSY || config_index == LIBUSB_ERROR_NOT_FOUND)
return config_index;
usb_raw_command command;
command.config.config_index = config_index;
if (ioctl(fRawFD, B_USB_RAW_COMMAND_SET_CONFIGURATION, &command, sizeof(command)) ||
command.config.status != B_USB_RAW_STATUS_SUCCESS) {
return _errno_to_libusb(command.config.status);
}
fUSBDevice->SetActiveConfiguration(config_index);
return LIBUSB_SUCCESS;
}
int
USBDeviceHandle::SetAltSetting(int inumber, int alt)
{
usb_raw_command command;
command.alternate.config_index = fUSBDevice->ActiveConfigurationIndex();
command.alternate.interface_index = inumber;
if (ioctl(fRawFD, B_USB_RAW_COMMAND_GET_ACTIVE_ALT_INTERFACE_INDEX, &command, sizeof(command)) ||
command.alternate.status != B_USB_RAW_STATUS_SUCCESS) {
usbi_err(NULL, "Error retrieving active alternate interface");
return _errno_to_libusb(command.alternate.status);
}
if (command.alternate.alternate_info == alt) {
usbi_dbg("Setting alternate interface successful");
return LIBUSB_SUCCESS;
}
command.alternate.alternate_info = alt;
if (ioctl(fRawFD, B_USB_RAW_COMMAND_SET_ALT_INTERFACE, &command, sizeof(command)) ||
command.alternate.status != B_USB_RAW_STATUS_SUCCESS) { //IF IOCTL FAILS DEVICE DISONNECTED PROBABLY
usbi_err(NULL, "Error setting alternate interface");
return _errno_to_libusb(command.alternate.status);
}
usbi_dbg("Setting alternate interface successful");
return LIBUSB_SUCCESS;
}
USBDevice::USBDevice(const char *path)
:
fPath(NULL),
fActiveConfiguration(0), //0?
fConfigurationDescriptors(NULL),
fClaimedInterfaces(0),
fEndpointToIndex(NULL),
fEndpointToInterface(NULL),
fInitCheck(false)
{
fPath=strdup(path);
Initialise();
}
USBDevice::~USBDevice()
{
free(fPath);
if (fConfigurationDescriptors) {
for(int i = 0; i < fDeviceDescriptor.num_configurations; i++) {
if (fConfigurationDescriptors[i])
delete fConfigurationDescriptors[i];
}
delete[] fConfigurationDescriptors;
}
if (fEndpointToIndex)
delete[] fEndpointToIndex;
if (fEndpointToInterface)
delete[] fEndpointToInterface;
}
bool
USBDevice::InitCheck()
{
return fInitCheck;
}
const char *
USBDevice::Location() const
{
return fPath;
}
uint8
USBDevice::CountConfigurations() const
{
return fDeviceDescriptor.num_configurations;
}
const usb_device_descriptor *
USBDevice::Descriptor() const
{
return &fDeviceDescriptor;
}
const usb_configuration_descriptor *
USBDevice::ConfigurationDescriptor(uint32 index) const
{
if (index > CountConfigurations())
return NULL;
return (usb_configuration_descriptor *) fConfigurationDescriptors[index];
}
const usb_configuration_descriptor *
USBDevice::ActiveConfiguration() const
{
return (usb_configuration_descriptor *) fConfigurationDescriptors[fActiveConfiguration];
}
int
USBDevice::ActiveConfigurationIndex() const
{
return fActiveConfiguration;
}
int USBDevice::ClaimInterface(int interface)
{
if (interface > ActiveConfiguration()->number_interfaces)
return LIBUSB_ERROR_NOT_FOUND;
if (fClaimedInterfaces & (1 << interface))
return LIBUSB_ERROR_BUSY;
fClaimedInterfaces |= (1 << interface);
return LIBUSB_SUCCESS;
}
int USBDevice::ReleaseInterface(int interface)
{
fClaimedInterfaces &= ~(1 << interface);
return LIBUSB_SUCCESS;
}
int
USBDevice::CheckInterfacesFree(int config)
{
if (fConfigToIndex.count(config) == 0)
return LIBUSB_ERROR_NOT_FOUND;
if (fClaimedInterfaces == 0)
return fConfigToIndex[(uint8)config];
return LIBUSB_ERROR_BUSY;
}
int
USBDevice::SetActiveConfiguration(int config_index)
{
fActiveConfiguration = config_index;
return LIBUSB_SUCCESS;
}
uint8
USBDevice::EndpointToIndex(uint8 address) const
{
return fEndpointToIndex[fActiveConfiguration][address];
}
uint8
USBDevice::EndpointToInterface(uint8 address) const
{
return fEndpointToInterface[fActiveConfiguration][address];
}
int
USBDevice::Initialise() //Do we need more error checking, etc? How to report?
{
int fRawFD = open(fPath, O_RDWR | O_CLOEXEC);
if (fRawFD < 0)
return B_ERROR;
usb_raw_command command;
command.device.descriptor = &fDeviceDescriptor;
if (ioctl(fRawFD, B_USB_RAW_COMMAND_GET_DEVICE_DESCRIPTOR, &command, sizeof(command)) ||
command.device.status != B_USB_RAW_STATUS_SUCCESS) {
close(fRawFD);
return B_ERROR;
}
fConfigurationDescriptors = new(std::nothrow) unsigned char *[fDeviceDescriptor.num_configurations];
fEndpointToIndex = new(std::nothrow) map<uint8,uint8> [fDeviceDescriptor.num_configurations];
fEndpointToInterface = new(std::nothrow) map<uint8,uint8> [fDeviceDescriptor.num_configurations];
for (int i = 0; i < fDeviceDescriptor.num_configurations; i++) {
usb_configuration_descriptor tmp_config;
command.config.descriptor = &tmp_config;
command.config.config_index = i;
if (ioctl(fRawFD, B_USB_RAW_COMMAND_GET_CONFIGURATION_DESCRIPTOR, &command, sizeof(command)) ||
command.config.status != B_USB_RAW_STATUS_SUCCESS) {
usbi_err(NULL, "failed retrieving configuration descriptor");
close(fRawFD);
return B_ERROR;
}
fConfigToIndex[tmp_config.configuration_value] = i;
fConfigurationDescriptors[i] = new(std::nothrow) unsigned char[tmp_config.total_length];
command.control.request_type = 128;
command.control.request = 6;
command.control.value = (2 << 8) | i;
command.control.index = 0;
command.control.length = tmp_config.total_length;
command.control.data = fConfigurationDescriptors[i];
if (ioctl(fRawFD, B_USB_RAW_COMMAND_CONTROL_TRANSFER, &command, sizeof(command)) ||
command.control.status!=B_USB_RAW_STATUS_SUCCESS) {
usbi_err(NULL, "failed retrieving full configuration descriptor");
close(fRawFD);
return B_ERROR;
}
for (int j = 0; j < tmp_config.number_interfaces; j++) {
command.alternate.config_index = i;
command.alternate.interface_index = j;
if (ioctl(fRawFD, B_USB_RAW_COMMAND_GET_ALT_INTERFACE_COUNT, &command, sizeof(command)) ||
command.config.status != B_USB_RAW_STATUS_SUCCESS) {
usbi_err(NULL, "failed retrieving number of alternate interfaces");
close(fRawFD);
return B_ERROR;
}
int num_alternate = command.alternate.alternate_info;
for (int k = 0; k < num_alternate; k++) {
usb_interface_descriptor tmp_interface;
command.interface_etc.config_index = i;
command.interface_etc.interface_index = j;
command.interface_etc.alternate_index = k;
command.interface_etc.descriptor = &tmp_interface;
if (ioctl(fRawFD, B_USB_RAW_COMMAND_GET_INTERFACE_DESCRIPTOR_ETC, &command, sizeof(command)) ||
command.config.status != B_USB_RAW_STATUS_SUCCESS) {
usbi_err(NULL, "failed retrieving interface descriptor");
close(fRawFD);
return B_ERROR;
}
for (int l = 0; l < tmp_interface.num_endpoints; l++) {
usb_endpoint_descriptor tmp_endpoint;
command.endpoint_etc.config_index = i;
command.endpoint_etc.interface_index = j;
command.endpoint_etc.alternate_index = k;
command.endpoint_etc.endpoint_index = l;
command.endpoint_etc.descriptor = &tmp_endpoint;
if (ioctl(fRawFD, B_USB_RAW_COMMAND_GET_ENDPOINT_DESCRIPTOR_ETC, &command, sizeof(command)) ||
command.config.status != B_USB_RAW_STATUS_SUCCESS) {
usbi_err(NULL, "failed retrieving endpoint descriptor");
close(fRawFD);
return B_ERROR;
}
fEndpointToIndex[i][tmp_endpoint.endpoint_address] = l;
fEndpointToInterface[i][tmp_endpoint.endpoint_address] = j;
}
}
}
}
close(fRawFD);
fInitCheck = true;
return B_OK;
}

250
vendor/github.com/karalabe/hid/libusb/libusb/os/haiku_usb_raw.cpp generated vendored Normal file
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/*
* Haiku Backend for libusb
* Copyright © 2014 Akshay Jaggi <akshay1994.leo@gmail.com>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#include <unistd.h>
#include <string.h>
#include <stdlib.h>
#include <new>
#include <vector>
#include "haiku_usb.h"
USBRoster gUsbRoster;
int32 gInitCount = 0;
static int
haiku_init(struct libusb_context *ctx)
{
if (atomic_add(&gInitCount, 1) == 0)
return gUsbRoster.Start();
return LIBUSB_SUCCESS;
}
static void
haiku_exit(void)
{
if (atomic_add(&gInitCount, -1) == 1)
gUsbRoster.Stop();
}
static int
haiku_open(struct libusb_device_handle *dev_handle)
{
USBDevice *dev = *((USBDevice **)dev_handle->dev->os_priv);
USBDeviceHandle *handle = new(std::nothrow) USBDeviceHandle(dev);
if (handle == NULL)
return LIBUSB_ERROR_NO_MEM;
if (handle->InitCheck() == false) {
delete handle;
return LIBUSB_ERROR_NO_DEVICE;
}
*((USBDeviceHandle **)dev_handle->os_priv) = handle;
return LIBUSB_SUCCESS;
}
static void
haiku_close(struct libusb_device_handle *dev_handle)
{
USBDeviceHandle *handle = *((USBDeviceHandle **)dev_handle->os_priv);
if (handle == NULL)
return;
delete handle;
*((USBDeviceHandle **)dev_handle->os_priv) = NULL;
}
static int
haiku_get_device_descriptor(struct libusb_device *device, unsigned char *buffer, int *host_endian)
{
USBDevice *dev = *((USBDevice **)device->os_priv);
memcpy(buffer, dev->Descriptor(), DEVICE_DESC_LENGTH);
*host_endian = 0;
return LIBUSB_SUCCESS;
}
static int
haiku_get_active_config_descriptor(struct libusb_device *device, unsigned char *buffer, size_t len, int *host_endian)
{
USBDevice *dev = *((USBDevice **)device->os_priv);
const usb_configuration_descriptor *act_config = dev->ActiveConfiguration();
if (len > act_config->total_length)
return LIBUSB_ERROR_OVERFLOW;
memcpy(buffer, act_config, len);
*host_endian = 0;
return LIBUSB_SUCCESS;
}
static int
haiku_get_config_descriptor(struct libusb_device *device, uint8_t config_index, unsigned char *buffer, size_t len, int *host_endian)
{
USBDevice *dev = *((USBDevice **)device->os_priv);
const usb_configuration_descriptor *config = dev->ConfigurationDescriptor(config_index);
if (config == NULL) {
usbi_err(DEVICE_CTX(device), "failed getting configuration descriptor");
return LIBUSB_ERROR_INVALID_PARAM;
}
if (len > config->total_length)
len = config->total_length;
memcpy(buffer, config, len);
*host_endian = 0;
return len;
}
static int
haiku_set_configuration(struct libusb_device_handle *dev_handle, int config)
{
USBDeviceHandle *handle= *((USBDeviceHandle **)dev_handle->os_priv);
return handle->SetConfiguration(config);
}
static int
haiku_claim_interface(struct libusb_device_handle *dev_handle, int interface_number)
{
USBDeviceHandle *handle = *((USBDeviceHandle **)dev_handle->os_priv);
return handle->ClaimInterface(interface_number);
}
static int
haiku_set_altsetting(struct libusb_device_handle *dev_handle, int interface_number, int altsetting)
{
USBDeviceHandle *handle = *((USBDeviceHandle **)dev_handle->os_priv);
return handle->SetAltSetting(interface_number, altsetting);
}
static int
haiku_release_interface(struct libusb_device_handle *dev_handle, int interface_number)
{
USBDeviceHandle *handle = *((USBDeviceHandle **)dev_handle->os_priv);
haiku_set_altsetting(dev_handle,interface_number, 0);
return handle->ReleaseInterface(interface_number);
}
static int
haiku_submit_transfer(struct usbi_transfer *itransfer)
{
struct libusb_transfer *fLibusbTransfer = USBI_TRANSFER_TO_LIBUSB_TRANSFER(itransfer);
USBDeviceHandle *fDeviceHandle = *((USBDeviceHandle **)fLibusbTransfer->dev_handle->os_priv);
return fDeviceHandle->SubmitTransfer(itransfer);
}
static int
haiku_cancel_transfer(struct usbi_transfer *itransfer)
{
struct libusb_transfer *fLibusbTransfer = USBI_TRANSFER_TO_LIBUSB_TRANSFER(itransfer);
USBDeviceHandle *fDeviceHandle = *((USBDeviceHandle **)fLibusbTransfer->dev_handle->os_priv);
return fDeviceHandle->CancelTransfer(*((USBTransfer **)usbi_transfer_get_os_priv(itransfer)));
}
static void
haiku_clear_transfer_priv(struct usbi_transfer *itransfer)
{
USBTransfer *transfer = *((USBTransfer **)usbi_transfer_get_os_priv(itransfer));
delete transfer;
*((USBTransfer **)usbi_transfer_get_os_priv(itransfer)) = NULL;
}
static int
haiku_handle_transfer_completion(struct usbi_transfer *itransfer)
{
USBTransfer *transfer = *((USBTransfer **)usbi_transfer_get_os_priv(itransfer));
usbi_mutex_lock(&itransfer->lock);
if (transfer->IsCancelled()) {
delete transfer;
*((USBTransfer **)usbi_transfer_get_os_priv(itransfer)) = NULL;
usbi_mutex_unlock(&itransfer->lock);
if (itransfer->transferred < 0)
itransfer->transferred = 0;
return usbi_handle_transfer_cancellation(itransfer);
}
libusb_transfer_status status = LIBUSB_TRANSFER_COMPLETED;
if (itransfer->transferred < 0) {
usbi_err(ITRANSFER_CTX(itransfer), "error in transfer");
status = LIBUSB_TRANSFER_ERROR;
itransfer->transferred = 0;
}
delete transfer;
*((USBTransfer **)usbi_transfer_get_os_priv(itransfer)) = NULL;
usbi_mutex_unlock(&itransfer->lock);
return usbi_handle_transfer_completion(itransfer, status);
}
static int
haiku_clock_gettime(int clkid, struct timespec *tp)
{
if (clkid == USBI_CLOCK_REALTIME)
return clock_gettime(CLOCK_REALTIME, tp);
if (clkid == USBI_CLOCK_MONOTONIC)
return clock_gettime(CLOCK_MONOTONIC, tp);
return LIBUSB_ERROR_INVALID_PARAM;
}
const struct usbi_os_backend haiku_usb_raw_backend = {
/*.name =*/ "Haiku usbfs",
/*.caps =*/ 0,
/*.init =*/ haiku_init,
/*.exit =*/ haiku_exit,
/*.get_device_list =*/ NULL,
/*.hotplug_poll =*/ NULL,
/*.open =*/ haiku_open,
/*.close =*/ haiku_close,
/*.get_device_descriptor =*/ haiku_get_device_descriptor,
/*.get_active_config_descriptor =*/ haiku_get_active_config_descriptor,
/*.get_config_descriptor =*/ haiku_get_config_descriptor,
/*.get_config_descriptor_by_value =*/ NULL,
/*.get_configuration =*/ NULL,
/*.set_configuration =*/ haiku_set_configuration,
/*.claim_interface =*/ haiku_claim_interface,
/*.release_interface =*/ haiku_release_interface,
/*.set_interface_altsetting =*/ haiku_set_altsetting,
/*.clear_halt =*/ NULL,
/*.reset_device =*/ NULL,
/*.alloc_streams =*/ NULL,
/*.free_streams =*/ NULL,
/*.dev_mem_alloc =*/ NULL,
/*.dev_mem_free =*/ NULL,
/*.kernel_driver_active =*/ NULL,
/*.detach_kernel_driver =*/ NULL,
/*.attach_kernel_driver =*/ NULL,
/*.destroy_device =*/ NULL,
/*.submit_transfer =*/ haiku_submit_transfer,
/*.cancel_transfer =*/ haiku_cancel_transfer,
/*.clear_transfer_priv =*/ haiku_clear_transfer_priv,
/*.handle_events =*/ NULL,
/*.handle_transfer_completion =*/ haiku_handle_transfer_completion,
/*.clock_gettime =*/ haiku_clock_gettime,
#ifdef USBI_TIMERFD_AVAILABLE
/*.get_timerfd_clockid =*/ NULL,
#endif
/*.device_priv_size =*/ sizeof(USBDevice *),
/*.device_handle_priv_size =*/ sizeof(USBDeviceHandle *),
/*.transfer_priv_size =*/ sizeof(USBTransfer *),
};

180
vendor/github.com/karalabe/hid/libusb/libusb/os/haiku_usb_raw.h generated vendored Normal file
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/*
* Copyright 2006-2008, Haiku Inc. All rights reserved.
* Distributed under the terms of the MIT License.
*/
#ifndef _USB_RAW_H_
#define _USB_RAW_H_
#include <USB3.h>
#define B_USB_RAW_PROTOCOL_VERSION 0x0015
#define B_USB_RAW_ACTIVE_ALTERNATE 0xffffffff
typedef enum {
B_USB_RAW_COMMAND_GET_VERSION = 0x1000,
B_USB_RAW_COMMAND_GET_DEVICE_DESCRIPTOR = 0x2000,
B_USB_RAW_COMMAND_GET_CONFIGURATION_DESCRIPTOR,
B_USB_RAW_COMMAND_GET_INTERFACE_DESCRIPTOR,
B_USB_RAW_COMMAND_GET_ENDPOINT_DESCRIPTOR,
B_USB_RAW_COMMAND_GET_STRING_DESCRIPTOR,
B_USB_RAW_COMMAND_GET_GENERIC_DESCRIPTOR,
B_USB_RAW_COMMAND_GET_ALT_INTERFACE_COUNT,
B_USB_RAW_COMMAND_GET_ACTIVE_ALT_INTERFACE_INDEX,
B_USB_RAW_COMMAND_GET_INTERFACE_DESCRIPTOR_ETC,
B_USB_RAW_COMMAND_GET_ENDPOINT_DESCRIPTOR_ETC,
B_USB_RAW_COMMAND_GET_GENERIC_DESCRIPTOR_ETC,
B_USB_RAW_COMMAND_SET_CONFIGURATION = 0x3000,
B_USB_RAW_COMMAND_SET_FEATURE,
B_USB_RAW_COMMAND_CLEAR_FEATURE,
B_USB_RAW_COMMAND_GET_STATUS,
B_USB_RAW_COMMAND_GET_DESCRIPTOR,
B_USB_RAW_COMMAND_SET_ALT_INTERFACE,
B_USB_RAW_COMMAND_CONTROL_TRANSFER = 0x4000,
B_USB_RAW_COMMAND_INTERRUPT_TRANSFER,
B_USB_RAW_COMMAND_BULK_TRANSFER,
B_USB_RAW_COMMAND_ISOCHRONOUS_TRANSFER
} usb_raw_command_id;
typedef enum {
B_USB_RAW_STATUS_SUCCESS = 0,
B_USB_RAW_STATUS_FAILED,
B_USB_RAW_STATUS_ABORTED,
B_USB_RAW_STATUS_STALLED,
B_USB_RAW_STATUS_CRC_ERROR,
B_USB_RAW_STATUS_TIMEOUT,
B_USB_RAW_STATUS_INVALID_CONFIGURATION,
B_USB_RAW_STATUS_INVALID_INTERFACE,
B_USB_RAW_STATUS_INVALID_ENDPOINT,
B_USB_RAW_STATUS_INVALID_STRING,
B_USB_RAW_STATUS_NO_MEMORY
} usb_raw_command_status;
typedef union {
struct {
status_t status;
} version;
struct {
status_t status;
usb_device_descriptor *descriptor;
} device;
struct {
status_t status;
usb_configuration_descriptor *descriptor;
uint32 config_index;
} config;
struct {
status_t status;
uint32 alternate_info;
uint32 config_index;
uint32 interface_index;
} alternate;
struct {
status_t status;
usb_interface_descriptor *descriptor;
uint32 config_index;
uint32 interface_index;
} interface;
struct {
status_t status;
usb_interface_descriptor *descriptor;
uint32 config_index;
uint32 interface_index;
uint32 alternate_index;
} interface_etc;
struct {
status_t status;
usb_endpoint_descriptor *descriptor;
uint32 config_index;
uint32 interface_index;
uint32 endpoint_index;
} endpoint;
struct {
status_t status;
usb_endpoint_descriptor *descriptor;
uint32 config_index;
uint32 interface_index;
uint32 alternate_index;
uint32 endpoint_index;
} endpoint_etc;
struct {
status_t status;
usb_descriptor *descriptor;
uint32 config_index;
uint32 interface_index;
uint32 generic_index;
size_t length;
} generic;
struct {
status_t status;
usb_descriptor *descriptor;
uint32 config_index;
uint32 interface_index;
uint32 alternate_index;
uint32 generic_index;
size_t length;
} generic_etc;
struct {
status_t status;
usb_string_descriptor *descriptor;
uint32 string_index;
size_t length;
} string;
struct {
status_t status;
uint8 type;
uint8 index;
uint16 language_id;
void *data;
size_t length;
} descriptor;
struct {
status_t status;
uint8 request_type;
uint8 request;
uint16 value;
uint16 index;
uint16 length;
void *data;
} control;
struct {
status_t status;
uint32 interface;
uint32 endpoint;
void *data;
size_t length;
} transfer;
struct {
status_t status;
uint32 interface;
uint32 endpoint;
void *data;
size_t length;
usb_iso_packet_descriptor *packet_descriptors;
uint32 packet_count;
} isochronous;
} usb_raw_command;
#endif // _USB_RAW_H_

400
vendor/github.com/karalabe/hid/libusb/libusb/os/linux_netlink.c generated vendored Normal file
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/* -*- Mode: C; c-basic-offset:8 ; indent-tabs-mode:t -*- */
/*
* Linux usbfs backend for libusb
* Copyright (C) 2007-2009 Daniel Drake <dsd@gentoo.org>
* Copyright (c) 2001 Johannes Erdfelt <johannes@erdfelt.com>
* Copyright (c) 2013 Nathan Hjelm <hjelmn@mac.com>
* Copyright (c) 2016 Chris Dickens <christopher.a.dickens@gmail.com>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#include <config.h>
#include <assert.h>
#include <errno.h>
#include <fcntl.h>
#include <poll.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <sys/types.h>
#ifdef HAVE_ASM_TYPES_H
#include <asm/types.h>
#endif
#include <sys/socket.h>
#include <linux/netlink.h>
#include "libusbi.h"
#include "linux_usbfs.h"
#define NL_GROUP_KERNEL 1
static int linux_netlink_socket = -1;
static int netlink_control_pipe[2] = { -1, -1 };
static pthread_t libusb_linux_event_thread;
static void *linux_netlink_event_thread_main(void *arg);
static int set_fd_cloexec_nb(int fd)
{
int flags;
#if defined(FD_CLOEXEC)
flags = fcntl(fd, F_GETFD);
if (flags == -1) {
usbi_err(NULL, "failed to get netlink fd flags (%d)", errno);
return -1;
}
if (!(flags & FD_CLOEXEC)) {
if (fcntl(fd, F_SETFD, flags | FD_CLOEXEC) == -1) {
usbi_err(NULL, "failed to set netlink fd flags (%d)", errno);
return -1;
}
}
#endif
flags = fcntl(fd, F_GETFL);
if (flags == -1) {
usbi_err(NULL, "failed to get netlink fd status flags (%d)", errno);
return -1;
}
if (!(flags & O_NONBLOCK)) {
if (fcntl(fd, F_SETFL, flags | O_NONBLOCK) == -1) {
usbi_err(NULL, "failed to set netlink fd status flags (%d)", errno);
return -1;
}
}
return 0;
}
int linux_netlink_start_event_monitor(void)
{
struct sockaddr_nl sa_nl = { .nl_family = AF_NETLINK, .nl_groups = NL_GROUP_KERNEL };
int socktype = SOCK_RAW;
int opt = 1;
int ret;
#if defined(SOCK_CLOEXEC)
socktype |= SOCK_CLOEXEC;
#endif
#if defined(SOCK_NONBLOCK)
socktype |= SOCK_NONBLOCK;
#endif
linux_netlink_socket = socket(PF_NETLINK, socktype, NETLINK_KOBJECT_UEVENT);
if (linux_netlink_socket == -1 && errno == EINVAL) {
usbi_dbg("failed to create netlink socket of type %d, attempting SOCK_RAW", socktype);
linux_netlink_socket = socket(PF_NETLINK, SOCK_RAW, NETLINK_KOBJECT_UEVENT);
}
if (linux_netlink_socket == -1) {
usbi_err(NULL, "failed to create netlink socket (%d)", errno);
goto err;
}
ret = set_fd_cloexec_nb(linux_netlink_socket);
if (ret == -1)
goto err_close_socket;
ret = bind(linux_netlink_socket, (struct sockaddr *)&sa_nl, sizeof(sa_nl));
if (ret == -1) {
usbi_err(NULL, "failed to bind netlink socket (%d)", errno);
goto err_close_socket;
}
ret = setsockopt(linux_netlink_socket, SOL_SOCKET, SO_PASSCRED, &opt, sizeof(opt));
if (ret == -1) {
usbi_err(NULL, "failed to set netlink socket SO_PASSCRED option (%d)", errno);
goto err_close_socket;
}
ret = usbi_pipe(netlink_control_pipe);
if (ret) {
usbi_err(NULL, "failed to create netlink control pipe");
goto err_close_socket;
}
ret = pthread_create(&libusb_linux_event_thread, NULL, linux_netlink_event_thread_main, NULL);
if (ret != 0) {
usbi_err(NULL, "failed to create netlink event thread (%d)", ret);
goto err_close_pipe;
}
return LIBUSB_SUCCESS;
err_close_pipe:
close(netlink_control_pipe[0]);
close(netlink_control_pipe[1]);
netlink_control_pipe[0] = -1;
netlink_control_pipe[1] = -1;
err_close_socket:
close(linux_netlink_socket);
linux_netlink_socket = -1;
err:
return LIBUSB_ERROR_OTHER;
}
int linux_netlink_stop_event_monitor(void)
{
char dummy = 1;
ssize_t r;
assert(linux_netlink_socket != -1);
/* Write some dummy data to the control pipe and
* wait for the thread to exit */
r = usbi_write(netlink_control_pipe[1], &dummy, sizeof(dummy));
if (r <= 0)
usbi_warn(NULL, "netlink control pipe signal failed");
pthread_join(libusb_linux_event_thread, NULL);
close(linux_netlink_socket);
linux_netlink_socket = -1;
/* close and reset control pipe */
close(netlink_control_pipe[0]);
close(netlink_control_pipe[1]);
netlink_control_pipe[0] = -1;
netlink_control_pipe[1] = -1;
return LIBUSB_SUCCESS;
}
static const char *netlink_message_parse(const char *buffer, size_t len, const char *key)
{
const char *end = buffer + len;
size_t keylen = strlen(key);
while (buffer < end && *buffer) {
if (strncmp(buffer, key, keylen) == 0 && buffer[keylen] == '=')
return buffer + keylen + 1;
buffer += strlen(buffer) + 1;
}
return NULL;
}
/* parse parts of netlink message common to both libudev and the kernel */
static int linux_netlink_parse(const char *buffer, size_t len, int *detached,
const char **sys_name, uint8_t *busnum, uint8_t *devaddr)
{
const char *tmp, *slash;
errno = 0;
*sys_name = NULL;
*detached = 0;
*busnum = 0;
*devaddr = 0;
tmp = netlink_message_parse(buffer, len, "ACTION");
if (!tmp) {
return -1;
} else if (strcmp(tmp, "remove") == 0) {
*detached = 1;
} else if (strcmp(tmp, "add") != 0) {
usbi_dbg("unknown device action %s", tmp);
return -1;
}
/* check that this is a usb message */
tmp = netlink_message_parse(buffer, len, "SUBSYSTEM");
if (!tmp || strcmp(tmp, "usb") != 0) {
/* not usb. ignore */
return -1;
}
/* check that this is an actual usb device */
tmp = netlink_message_parse(buffer, len, "DEVTYPE");
if (!tmp || strcmp(tmp, "usb_device") != 0) {
/* not usb. ignore */
return -1;
}
tmp = netlink_message_parse(buffer, len, "BUSNUM");
if (tmp) {
*busnum = (uint8_t)(strtoul(tmp, NULL, 10) & 0xff);
if (errno) {
errno = 0;
return -1;
}
tmp = netlink_message_parse(buffer, len, "DEVNUM");
if (NULL == tmp)
return -1;
*devaddr = (uint8_t)(strtoul(tmp, NULL, 10) & 0xff);
if (errno) {
errno = 0;
return -1;
}
} else {
/* no bus number. try "DEVICE" */
tmp = netlink_message_parse(buffer, len, "DEVICE");
if (!tmp) {
/* not usb. ignore */
return -1;
}
/* Parse a device path such as /dev/bus/usb/003/004 */
slash = strrchr(tmp, '/');
if (!slash)
return -1;
*busnum = (uint8_t)(strtoul(slash - 3, NULL, 10) & 0xff);
if (errno) {
errno = 0;
return -1;
}
*devaddr = (uint8_t)(strtoul(slash + 1, NULL, 10) & 0xff);
if (errno) {
errno = 0;
return -1;
}
return 0;
}
tmp = netlink_message_parse(buffer, len, "DEVPATH");
if (!tmp)
return -1;
slash = strrchr(tmp, '/');
if (slash)
*sys_name = slash + 1;
/* found a usb device */
return 0;
}
static int linux_netlink_read_message(void)
{
char cred_buffer[CMSG_SPACE(sizeof(struct ucred))];
char msg_buffer[2048];
const char *sys_name = NULL;
uint8_t busnum, devaddr;
int detached, r;
ssize_t len;
struct cmsghdr *cmsg;
struct ucred *cred;
struct sockaddr_nl sa_nl;
struct iovec iov = { .iov_base = msg_buffer, .iov_len = sizeof(msg_buffer) };
struct msghdr msg = {
.msg_iov = &iov, .msg_iovlen = 1,
.msg_control = cred_buffer, .msg_controllen = sizeof(cred_buffer),
.msg_name = &sa_nl, .msg_namelen = sizeof(sa_nl)
};
/* read netlink message */
len = recvmsg(linux_netlink_socket, &msg, 0);
if (len == -1) {
if (errno != EAGAIN && errno != EINTR)
usbi_err(NULL, "error receiving message from netlink (%d)", errno);
return -1;
}
if (len < 32 || (msg.msg_flags & MSG_TRUNC)) {
usbi_err(NULL, "invalid netlink message length");
return -1;
}
if (sa_nl.nl_groups != NL_GROUP_KERNEL || sa_nl.nl_pid != 0) {
usbi_dbg("ignoring netlink message from unknown group/PID (%u/%u)",
(unsigned int)sa_nl.nl_groups, (unsigned int)sa_nl.nl_pid);
return -1;
}
cmsg = CMSG_FIRSTHDR(&msg);
if (!cmsg || cmsg->cmsg_type != SCM_CREDENTIALS) {
usbi_dbg("ignoring netlink message with no sender credentials");
return -1;
}
cred = (struct ucred *)CMSG_DATA(cmsg);
if (cred->uid != 0) {
usbi_dbg("ignoring netlink message with non-zero sender UID %u", (unsigned int)cred->uid);
return -1;
}
r = linux_netlink_parse(msg_buffer, (size_t)len, &detached, &sys_name, &busnum, &devaddr);
if (r)
return r;
usbi_dbg("netlink hotplug found device busnum: %hhu, devaddr: %hhu, sys_name: %s, removed: %s",
busnum, devaddr, sys_name, detached ? "yes" : "no");
/* signal device is available (or not) to all contexts */
if (detached)
linux_device_disconnected(busnum, devaddr);
else
linux_hotplug_enumerate(busnum, devaddr, sys_name);
return 0;
}
static void *linux_netlink_event_thread_main(void *arg)
{
char dummy;
ssize_t r;
struct pollfd fds[] = {
{ .fd = netlink_control_pipe[0],
.events = POLLIN },
{ .fd = linux_netlink_socket,
.events = POLLIN },
};
UNUSED(arg);
usbi_dbg("netlink event thread entering");
while (poll(fds, 2, -1) >= 0) {
if (fds[0].revents & POLLIN) {
/* activity on control pipe, read the byte and exit */
r = usbi_read(netlink_control_pipe[0], &dummy, sizeof(dummy));
if (r <= 0)
usbi_warn(NULL, "netlink control pipe read failed");
break;
}
if (fds[1].revents & POLLIN) {
usbi_mutex_static_lock(&linux_hotplug_lock);
linux_netlink_read_message();
usbi_mutex_static_unlock(&linux_hotplug_lock);
}
}
usbi_dbg("netlink event thread exiting");
return NULL;
}
void linux_netlink_hotplug_poll(void)
{
int r;
usbi_mutex_static_lock(&linux_hotplug_lock);
do {
r = linux_netlink_read_message();
} while (r == 0);
usbi_mutex_static_unlock(&linux_hotplug_lock);
}

311
vendor/github.com/karalabe/hid/libusb/libusb/os/linux_udev.c generated vendored Normal file
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@ -0,0 +1,311 @@
/* -*- Mode: C; c-basic-offset:8 ; indent-tabs-mode:t -*- */
/*
* Linux usbfs backend for libusb
* Copyright (C) 2007-2009 Daniel Drake <dsd@gentoo.org>
* Copyright (c) 2001 Johannes Erdfelt <johannes@erdfelt.com>
* Copyright (c) 2012-2013 Nathan Hjelm <hjelmn@mac.com>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#include <config.h>
#include <assert.h>
#include <ctype.h>
#include <dirent.h>
#include <errno.h>
#include <fcntl.h>
#include <poll.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <sys/ioctl.h>
#include <sys/stat.h>
#include <sys/types.h>
#include <sys/utsname.h>
#include <sys/socket.h>
#include <unistd.h>
#include <libudev.h>
#include "libusbi.h"
#include "linux_usbfs.h"
/* udev context */
static struct udev *udev_ctx = NULL;
static int udev_monitor_fd = -1;
static int udev_control_pipe[2] = {-1, -1};
static struct udev_monitor *udev_monitor = NULL;
static pthread_t linux_event_thread;
static void udev_hotplug_event(struct udev_device* udev_dev);
static void *linux_udev_event_thread_main(void *arg);
int linux_udev_start_event_monitor(void)
{
int r;
assert(udev_ctx == NULL);
udev_ctx = udev_new();
if (!udev_ctx) {
usbi_err(NULL, "could not create udev context");
goto err;
}
udev_monitor = udev_monitor_new_from_netlink(udev_ctx, "udev");
if (!udev_monitor) {
usbi_err(NULL, "could not initialize udev monitor");
goto err_free_ctx;
}
r = udev_monitor_filter_add_match_subsystem_devtype(udev_monitor, "usb", "usb_device");
if (r) {
usbi_err(NULL, "could not initialize udev monitor filter for \"usb\" subsystem");
goto err_free_monitor;
}
if (udev_monitor_enable_receiving(udev_monitor)) {
usbi_err(NULL, "failed to enable the udev monitor");
goto err_free_monitor;
}
udev_monitor_fd = udev_monitor_get_fd(udev_monitor);
/* Some older versions of udev are not non-blocking by default,
* so make sure this is set */
r = fcntl(udev_monitor_fd, F_GETFL);
if (r == -1) {
usbi_err(NULL, "getting udev monitor fd flags (%d)", errno);
goto err_free_monitor;
}
r = fcntl(udev_monitor_fd, F_SETFL, r | O_NONBLOCK);
if (r) {
usbi_err(NULL, "setting udev monitor fd flags (%d)", errno);
goto err_free_monitor;
}
r = usbi_pipe(udev_control_pipe);
if (r) {
usbi_err(NULL, "could not create udev control pipe");
goto err_free_monitor;
}
r = pthread_create(&linux_event_thread, NULL, linux_udev_event_thread_main, NULL);
if (r) {
usbi_err(NULL, "creating hotplug event thread (%d)", r);
goto err_close_pipe;
}
return LIBUSB_SUCCESS;
err_close_pipe:
close(udev_control_pipe[0]);
close(udev_control_pipe[1]);
err_free_monitor:
udev_monitor_unref(udev_monitor);
udev_monitor = NULL;
udev_monitor_fd = -1;
err_free_ctx:
udev_unref(udev_ctx);
err:
udev_ctx = NULL;
return LIBUSB_ERROR_OTHER;
}
int linux_udev_stop_event_monitor(void)
{
char dummy = 1;
int r;
assert(udev_ctx != NULL);
assert(udev_monitor != NULL);
assert(udev_monitor_fd != -1);
/* Write some dummy data to the control pipe and
* wait for the thread to exit */
r = usbi_write(udev_control_pipe[1], &dummy, sizeof(dummy));
if (r <= 0) {
usbi_warn(NULL, "udev control pipe signal failed");
}
pthread_join(linux_event_thread, NULL);
/* Release the udev monitor */
udev_monitor_unref(udev_monitor);
udev_monitor = NULL;
udev_monitor_fd = -1;
/* Clean up the udev context */
udev_unref(udev_ctx);
udev_ctx = NULL;
/* close and reset control pipe */
close(udev_control_pipe[0]);
close(udev_control_pipe[1]);
udev_control_pipe[0] = -1;
udev_control_pipe[1] = -1;
return LIBUSB_SUCCESS;
}
static void *linux_udev_event_thread_main(void *arg)
{
char dummy;
int r;
struct udev_device* udev_dev;
struct pollfd fds[] = {
{.fd = udev_control_pipe[0],
.events = POLLIN},
{.fd = udev_monitor_fd,
.events = POLLIN},
};
usbi_dbg("udev event thread entering.");
while ((r = poll(fds, 2, -1)) >= 0 || errno == EINTR) {
if (r < 0) {
/* temporary failure */
continue;
}
if (fds[0].revents & POLLIN) {
/* activity on control pipe, read the byte and exit */
r = usbi_read(udev_control_pipe[0], &dummy, sizeof(dummy));
if (r <= 0) {
usbi_warn(NULL, "udev control pipe read failed");
}
break;
}
if (fds[1].revents & POLLIN) {
usbi_mutex_static_lock(&linux_hotplug_lock);
udev_dev = udev_monitor_receive_device(udev_monitor);
if (udev_dev)
udev_hotplug_event(udev_dev);
usbi_mutex_static_unlock(&linux_hotplug_lock);
}
}
usbi_dbg("udev event thread exiting");
return NULL;
}
static int udev_device_info(struct libusb_context *ctx, int detached,
struct udev_device *udev_dev, uint8_t *busnum,
uint8_t *devaddr, const char **sys_name) {
const char *dev_node;
dev_node = udev_device_get_devnode(udev_dev);
if (!dev_node) {
return LIBUSB_ERROR_OTHER;
}
*sys_name = udev_device_get_sysname(udev_dev);
if (!*sys_name) {
return LIBUSB_ERROR_OTHER;
}
return linux_get_device_address(ctx, detached, busnum, devaddr,
dev_node, *sys_name);
}
static void udev_hotplug_event(struct udev_device* udev_dev)
{
const char* udev_action;
const char* sys_name = NULL;
uint8_t busnum = 0, devaddr = 0;
int detached;
int r;
do {
udev_action = udev_device_get_action(udev_dev);
if (!udev_action) {
break;
}
detached = !strncmp(udev_action, "remove", 6);
r = udev_device_info(NULL, detached, udev_dev, &busnum, &devaddr, &sys_name);
if (LIBUSB_SUCCESS != r) {
break;
}
usbi_dbg("udev hotplug event. action: %s.", udev_action);
if (strncmp(udev_action, "add", 3) == 0) {
linux_hotplug_enumerate(busnum, devaddr, sys_name);
} else if (detached) {
linux_device_disconnected(busnum, devaddr);
} else {
usbi_err(NULL, "ignoring udev action %s", udev_action);
}
} while (0);
udev_device_unref(udev_dev);
}
int linux_udev_scan_devices(struct libusb_context *ctx)
{
struct udev_enumerate *enumerator;
struct udev_list_entry *devices, *entry;
struct udev_device *udev_dev;
const char *sys_name;
int r;
assert(udev_ctx != NULL);
enumerator = udev_enumerate_new(udev_ctx);
if (NULL == enumerator) {
usbi_err(ctx, "error creating udev enumerator");
return LIBUSB_ERROR_OTHER;
}
udev_enumerate_add_match_subsystem(enumerator, "usb");
udev_enumerate_add_match_property(enumerator, "DEVTYPE", "usb_device");
udev_enumerate_scan_devices(enumerator);
devices = udev_enumerate_get_list_entry(enumerator);
udev_list_entry_foreach(entry, devices) {
const char *path = udev_list_entry_get_name(entry);
uint8_t busnum = 0, devaddr = 0;
udev_dev = udev_device_new_from_syspath(udev_ctx, path);
r = udev_device_info(ctx, 0, udev_dev, &busnum, &devaddr, &sys_name);
if (r) {
udev_device_unref(udev_dev);
continue;
}
linux_enumerate_device(ctx, busnum, devaddr, sys_name);
udev_device_unref(udev_dev);
}
udev_enumerate_unref(enumerator);
return LIBUSB_SUCCESS;
}
void linux_udev_hotplug_poll(void)
{
struct udev_device* udev_dev;
usbi_mutex_static_lock(&linux_hotplug_lock);
do {
udev_dev = udev_monitor_receive_device(udev_monitor);
if (udev_dev) {
usbi_dbg("Handling hotplug event from hotplug_poll");
udev_hotplug_event(udev_dev);
}
} while (udev_dev);
usbi_mutex_static_unlock(&linux_hotplug_lock);
}

2738
vendor/github.com/karalabe/hid/libusb/libusb/os/linux_usbfs.c generated vendored Normal file
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File diff suppressed because it is too large Load Diff

193
vendor/github.com/karalabe/hid/libusb/libusb/os/linux_usbfs.h generated vendored Normal file
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@ -0,0 +1,193 @@
/*
* usbfs header structures
* Copyright © 2007 Daniel Drake <dsd@gentoo.org>
* Copyright © 2001 Johannes Erdfelt <johannes@erdfelt.com>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#ifndef LIBUSB_USBFS_H
#define LIBUSB_USBFS_H
#include <linux/types.h>
#define SYSFS_DEVICE_PATH "/sys/bus/usb/devices"
struct usbfs_ctrltransfer {
/* keep in sync with usbdevice_fs.h:usbdevfs_ctrltransfer */
uint8_t bmRequestType;
uint8_t bRequest;
uint16_t wValue;
uint16_t wIndex;
uint16_t wLength;
uint32_t timeout; /* in milliseconds */
/* pointer to data */
void *data;
};
struct usbfs_bulktransfer {
/* keep in sync with usbdevice_fs.h:usbdevfs_bulktransfer */
unsigned int ep;
unsigned int len;
unsigned int timeout; /* in milliseconds */
/* pointer to data */
void *data;
};
struct usbfs_setinterface {
/* keep in sync with usbdevice_fs.h:usbdevfs_setinterface */
unsigned int interface;
unsigned int altsetting;
};
#define USBFS_MAXDRIVERNAME 255
struct usbfs_getdriver {
unsigned int interface;
char driver[USBFS_MAXDRIVERNAME + 1];
};
#define USBFS_URB_SHORT_NOT_OK 0x01
#define USBFS_URB_ISO_ASAP 0x02
#define USBFS_URB_BULK_CONTINUATION 0x04
#define USBFS_URB_QUEUE_BULK 0x10
#define USBFS_URB_ZERO_PACKET 0x40
enum usbfs_urb_type {
USBFS_URB_TYPE_ISO = 0,
USBFS_URB_TYPE_INTERRUPT = 1,
USBFS_URB_TYPE_CONTROL = 2,
USBFS_URB_TYPE_BULK = 3,
};
struct usbfs_iso_packet_desc {
unsigned int length;
unsigned int actual_length;
unsigned int status;
};
#define MAX_ISO_BUFFER_LENGTH 49152 * 128
#define MAX_BULK_BUFFER_LENGTH 16384
#define MAX_CTRL_BUFFER_LENGTH 4096
struct usbfs_urb {
unsigned char type;
unsigned char endpoint;
int status;
unsigned int flags;
void *buffer;
int buffer_length;
int actual_length;
int start_frame;
union {
int number_of_packets; /* Only used for isoc urbs */
unsigned int stream_id; /* Only used with bulk streams */
};
int error_count;
unsigned int signr;
void *usercontext;
struct usbfs_iso_packet_desc iso_frame_desc[0];
};
struct usbfs_connectinfo {
unsigned int devnum;
unsigned char slow;
};
struct usbfs_ioctl {
int ifno; /* interface 0..N ; negative numbers reserved */
int ioctl_code; /* MUST encode size + direction of data so the
* macros in <asm/ioctl.h> give correct values */
void *data; /* param buffer (in, or out) */
};
struct usbfs_hub_portinfo {
unsigned char numports;
unsigned char port[127]; /* port to device num mapping */
};
#define USBFS_CAP_ZERO_PACKET 0x01
#define USBFS_CAP_BULK_CONTINUATION 0x02
#define USBFS_CAP_NO_PACKET_SIZE_LIM 0x04
#define USBFS_CAP_BULK_SCATTER_GATHER 0x08
#define USBFS_CAP_REAP_AFTER_DISCONNECT 0x10
#define USBFS_DISCONNECT_CLAIM_IF_DRIVER 0x01
#define USBFS_DISCONNECT_CLAIM_EXCEPT_DRIVER 0x02
struct usbfs_disconnect_claim {
unsigned int interface;
unsigned int flags;
char driver[USBFS_MAXDRIVERNAME + 1];
};
struct usbfs_streams {
unsigned int num_streams; /* Not used by USBDEVFS_FREE_STREAMS */
unsigned int num_eps;
unsigned char eps[0];
};
#define IOCTL_USBFS_CONTROL _IOWR('U', 0, struct usbfs_ctrltransfer)
#define IOCTL_USBFS_BULK _IOWR('U', 2, struct usbfs_bulktransfer)
#define IOCTL_USBFS_RESETEP _IOR('U', 3, unsigned int)
#define IOCTL_USBFS_SETINTF _IOR('U', 4, struct usbfs_setinterface)
#define IOCTL_USBFS_SETCONFIG _IOR('U', 5, unsigned int)
#define IOCTL_USBFS_GETDRIVER _IOW('U', 8, struct usbfs_getdriver)
#define IOCTL_USBFS_SUBMITURB _IOR('U', 10, struct usbfs_urb)
#define IOCTL_USBFS_DISCARDURB _IO('U', 11)
#define IOCTL_USBFS_REAPURB _IOW('U', 12, void *)
#define IOCTL_USBFS_REAPURBNDELAY _IOW('U', 13, void *)
#define IOCTL_USBFS_CLAIMINTF _IOR('U', 15, unsigned int)
#define IOCTL_USBFS_RELEASEINTF _IOR('U', 16, unsigned int)
#define IOCTL_USBFS_CONNECTINFO _IOW('U', 17, struct usbfs_connectinfo)
#define IOCTL_USBFS_IOCTL _IOWR('U', 18, struct usbfs_ioctl)
#define IOCTL_USBFS_HUB_PORTINFO _IOR('U', 19, struct usbfs_hub_portinfo)
#define IOCTL_USBFS_RESET _IO('U', 20)
#define IOCTL_USBFS_CLEAR_HALT _IOR('U', 21, unsigned int)
#define IOCTL_USBFS_DISCONNECT _IO('U', 22)
#define IOCTL_USBFS_CONNECT _IO('U', 23)
#define IOCTL_USBFS_CLAIM_PORT _IOR('U', 24, unsigned int)
#define IOCTL_USBFS_RELEASE_PORT _IOR('U', 25, unsigned int)
#define IOCTL_USBFS_GET_CAPABILITIES _IOR('U', 26, __u32)
#define IOCTL_USBFS_DISCONNECT_CLAIM _IOR('U', 27, struct usbfs_disconnect_claim)
#define IOCTL_USBFS_ALLOC_STREAMS _IOR('U', 28, struct usbfs_streams)
#define IOCTL_USBFS_FREE_STREAMS _IOR('U', 29, struct usbfs_streams)
extern usbi_mutex_static_t linux_hotplug_lock;
#if defined(HAVE_LIBUDEV)
int linux_udev_start_event_monitor(void);
int linux_udev_stop_event_monitor(void);
int linux_udev_scan_devices(struct libusb_context *ctx);
void linux_udev_hotplug_poll(void);
#else
int linux_netlink_start_event_monitor(void);
int linux_netlink_stop_event_monitor(void);
void linux_netlink_hotplug_poll(void);
#endif
void linux_hotplug_enumerate(uint8_t busnum, uint8_t devaddr, const char *sys_name);
void linux_device_disconnected(uint8_t busnum, uint8_t devaddr);
int linux_get_device_address (struct libusb_context *ctx, int detached,
uint8_t *busnum, uint8_t *devaddr, const char *dev_node,
const char *sys_name);
int linux_enumerate_device(struct libusb_context *ctx,
uint8_t busnum, uint8_t devaddr, const char *sysfs_dir);
#endif

677
vendor/github.com/karalabe/hid/libusb/libusb/os/netbsd_usb.c generated vendored Normal file
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@ -0,0 +1,677 @@
/*
* Copyright © 2011 Martin Pieuchot <mpi@openbsd.org>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#include <config.h>
#include <sys/time.h>
#include <sys/types.h>
#include <errno.h>
#include <fcntl.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <dev/usb/usb.h>
#include "libusbi.h"
struct device_priv {
char devnode[16];
int fd;
unsigned char *cdesc; /* active config descriptor */
usb_device_descriptor_t ddesc; /* usb device descriptor */
};
struct handle_priv {
int endpoints[USB_MAX_ENDPOINTS];
};
/*
* Backend functions
*/
static int netbsd_get_device_list(struct libusb_context *,
struct discovered_devs **);
static int netbsd_open(struct libusb_device_handle *);
static void netbsd_close(struct libusb_device_handle *);
static int netbsd_get_device_descriptor(struct libusb_device *, unsigned char *,
int *);
static int netbsd_get_active_config_descriptor(struct libusb_device *,
unsigned char *, size_t, int *);
static int netbsd_get_config_descriptor(struct libusb_device *, uint8_t,
unsigned char *, size_t, int *);
static int netbsd_get_configuration(struct libusb_device_handle *, int *);
static int netbsd_set_configuration(struct libusb_device_handle *, int);
static int netbsd_claim_interface(struct libusb_device_handle *, int);
static int netbsd_release_interface(struct libusb_device_handle *, int);
static int netbsd_set_interface_altsetting(struct libusb_device_handle *, int,
int);
static int netbsd_clear_halt(struct libusb_device_handle *, unsigned char);
static int netbsd_reset_device(struct libusb_device_handle *);
static void netbsd_destroy_device(struct libusb_device *);
static int netbsd_submit_transfer(struct usbi_transfer *);
static int netbsd_cancel_transfer(struct usbi_transfer *);
static void netbsd_clear_transfer_priv(struct usbi_transfer *);
static int netbsd_handle_transfer_completion(struct usbi_transfer *);
static int netbsd_clock_gettime(int, struct timespec *);
/*
* Private functions
*/
static int _errno_to_libusb(int);
static int _cache_active_config_descriptor(struct libusb_device *, int);
static int _sync_control_transfer(struct usbi_transfer *);
static int _sync_gen_transfer(struct usbi_transfer *);
static int _access_endpoint(struct libusb_transfer *);
const struct usbi_os_backend netbsd_backend = {
"Synchronous NetBSD backend",
0,
NULL, /* init() */
NULL, /* exit() */
netbsd_get_device_list,
NULL, /* hotplug_poll */
netbsd_open,
netbsd_close,
netbsd_get_device_descriptor,
netbsd_get_active_config_descriptor,
netbsd_get_config_descriptor,
NULL, /* get_config_descriptor_by_value() */
netbsd_get_configuration,
netbsd_set_configuration,
netbsd_claim_interface,
netbsd_release_interface,
netbsd_set_interface_altsetting,
netbsd_clear_halt,
netbsd_reset_device,
NULL, /* alloc_streams */
NULL, /* free_streams */
NULL, /* dev_mem_alloc() */
NULL, /* dev_mem_free() */
NULL, /* kernel_driver_active() */
NULL, /* detach_kernel_driver() */
NULL, /* attach_kernel_driver() */
netbsd_destroy_device,
netbsd_submit_transfer,
netbsd_cancel_transfer,
netbsd_clear_transfer_priv,
NULL, /* handle_events() */
netbsd_handle_transfer_completion,
netbsd_clock_gettime,
sizeof(struct device_priv),
sizeof(struct handle_priv),
0, /* transfer_priv_size */
};
int
netbsd_get_device_list(struct libusb_context * ctx,
struct discovered_devs **discdevs)
{
struct libusb_device *dev;
struct device_priv *dpriv;
struct usb_device_info di;
unsigned long session_id;
char devnode[16];
int fd, err, i;
usbi_dbg("");
/* Only ugen(4) is supported */
for (i = 0; i < USB_MAX_DEVICES; i++) {
/* Control endpoint is always .00 */
snprintf(devnode, sizeof(devnode), "/dev/ugen%d.00", i);
if ((fd = open(devnode, O_RDONLY)) < 0) {
if (errno != ENOENT && errno != ENXIO)
usbi_err(ctx, "could not open %s", devnode);
continue;
}
if (ioctl(fd, USB_GET_DEVICEINFO, &di) < 0)
continue;
session_id = (di.udi_bus << 8 | di.udi_addr);
dev = usbi_get_device_by_session_id(ctx, session_id);
if (dev == NULL) {
dev = usbi_alloc_device(ctx, session_id);
if (dev == NULL)
return (LIBUSB_ERROR_NO_MEM);
dev->bus_number = di.udi_bus;
dev->device_address = di.udi_addr;
dev->speed = di.udi_speed;
dpriv = (struct device_priv *)dev->os_priv;
strlcpy(dpriv->devnode, devnode, sizeof(devnode));
dpriv->fd = -1;
if (ioctl(fd, USB_GET_DEVICE_DESC, &dpriv->ddesc) < 0) {
err = errno;
goto error;
}
dpriv->cdesc = NULL;
if (_cache_active_config_descriptor(dev, fd)) {
err = errno;
goto error;
}
if ((err = usbi_sanitize_device(dev)))
goto error;
}
close(fd);
if (discovered_devs_append(*discdevs, dev) == NULL)
return (LIBUSB_ERROR_NO_MEM);
libusb_unref_device(dev);
}
return (LIBUSB_SUCCESS);
error:
close(fd);
libusb_unref_device(dev);
return _errno_to_libusb(err);
}
int
netbsd_open(struct libusb_device_handle *handle)
{
struct handle_priv *hpriv = (struct handle_priv *)handle->os_priv;
struct device_priv *dpriv = (struct device_priv *)handle->dev->os_priv;
dpriv->fd = open(dpriv->devnode, O_RDWR);
if (dpriv->fd < 0) {
dpriv->fd = open(dpriv->devnode, O_RDONLY);
if (dpriv->fd < 0)
return _errno_to_libusb(errno);
}
usbi_dbg("open %s: fd %d", dpriv->devnode, dpriv->fd);
return (LIBUSB_SUCCESS);
}
void
netbsd_close(struct libusb_device_handle *handle)
{
struct handle_priv *hpriv = (struct handle_priv *)handle->os_priv;
struct device_priv *dpriv = (struct device_priv *)handle->dev->os_priv;
usbi_dbg("close: fd %d", dpriv->fd);
close(dpriv->fd);
dpriv->fd = -1;
}
int
netbsd_get_device_descriptor(struct libusb_device *dev, unsigned char *buf,
int *host_endian)
{
struct device_priv *dpriv = (struct device_priv *)dev->os_priv;
usbi_dbg("");
memcpy(buf, &dpriv->ddesc, DEVICE_DESC_LENGTH);
*host_endian = 0;
return (LIBUSB_SUCCESS);
}
int
netbsd_get_active_config_descriptor(struct libusb_device *dev,
unsigned char *buf, size_t len, int *host_endian)
{
struct device_priv *dpriv = (struct device_priv *)dev->os_priv;
usb_config_descriptor_t *ucd;
ucd = (usb_config_descriptor_t *) dpriv->cdesc;
len = MIN(len, UGETW(ucd->wTotalLength));
usbi_dbg("len %d", len);
memcpy(buf, dpriv->cdesc, len);
*host_endian = 0;
return len;
}
int
netbsd_get_config_descriptor(struct libusb_device *dev, uint8_t idx,
unsigned char *buf, size_t len, int *host_endian)
{
struct device_priv *dpriv = (struct device_priv *)dev->os_priv;
struct usb_full_desc ufd;
int fd, err;
usbi_dbg("index %d, len %d", idx, len);
/* A config descriptor may be requested before opening the device */
if (dpriv->fd >= 0) {
fd = dpriv->fd;
} else {
fd = open(dpriv->devnode, O_RDONLY);
if (fd < 0)
return _errno_to_libusb(errno);
}
ufd.ufd_config_index = idx;
ufd.ufd_size = len;
ufd.ufd_data = buf;
if ((ioctl(fd, USB_GET_FULL_DESC, &ufd)) < 0) {
err = errno;
if (dpriv->fd < 0)
close(fd);
return _errno_to_libusb(err);
}
if (dpriv->fd < 0)
close(fd);
*host_endian = 0;
return len;
}
int
netbsd_get_configuration(struct libusb_device_handle *handle, int *config)
{
struct device_priv *dpriv = (struct device_priv *)handle->dev->os_priv;
usbi_dbg("");
if (ioctl(dpriv->fd, USB_GET_CONFIG, config) < 0)
return _errno_to_libusb(errno);
usbi_dbg("configuration %d", *config);
return (LIBUSB_SUCCESS);
}
int
netbsd_set_configuration(struct libusb_device_handle *handle, int config)
{
struct device_priv *dpriv = (struct device_priv *)handle->dev->os_priv;
usbi_dbg("configuration %d", config);
if (ioctl(dpriv->fd, USB_SET_CONFIG, &config) < 0)
return _errno_to_libusb(errno);
return _cache_active_config_descriptor(handle->dev, dpriv->fd);
}
int
netbsd_claim_interface(struct libusb_device_handle *handle, int iface)
{
struct handle_priv *hpriv = (struct handle_priv *)handle->os_priv;
int i;
for (i = 0; i < USB_MAX_ENDPOINTS; i++)
hpriv->endpoints[i] = -1;
return (LIBUSB_SUCCESS);
}
int
netbsd_release_interface(struct libusb_device_handle *handle, int iface)
{
struct handle_priv *hpriv = (struct handle_priv *)handle->os_priv;
int i;
for (i = 0; i < USB_MAX_ENDPOINTS; i++)
if (hpriv->endpoints[i] >= 0)
close(hpriv->endpoints[i]);
return (LIBUSB_SUCCESS);
}
int
netbsd_set_interface_altsetting(struct libusb_device_handle *handle, int iface,
int altsetting)
{
struct device_priv *dpriv = (struct device_priv *)handle->dev->os_priv;
struct usb_alt_interface intf;
usbi_dbg("iface %d, setting %d", iface, altsetting);
memset(&intf, 0, sizeof(intf));
intf.uai_interface_index = iface;
intf.uai_alt_no = altsetting;
if (ioctl(dpriv->fd, USB_SET_ALTINTERFACE, &intf) < 0)
return _errno_to_libusb(errno);
return (LIBUSB_SUCCESS);
}
int
netbsd_clear_halt(struct libusb_device_handle *handle, unsigned char endpoint)
{
struct device_priv *dpriv = (struct device_priv *)handle->dev->os_priv;
struct usb_ctl_request req;
usbi_dbg("");
req.ucr_request.bmRequestType = UT_WRITE_ENDPOINT;
req.ucr_request.bRequest = UR_CLEAR_FEATURE;
USETW(req.ucr_request.wValue, UF_ENDPOINT_HALT);
USETW(req.ucr_request.wIndex, endpoint);
USETW(req.ucr_request.wLength, 0);
if (ioctl(dpriv->fd, USB_DO_REQUEST, &req) < 0)
return _errno_to_libusb(errno);
return (LIBUSB_SUCCESS);
}
int
netbsd_reset_device(struct libusb_device_handle *handle)
{
usbi_dbg("");
return (LIBUSB_ERROR_NOT_SUPPORTED);
}
void
netbsd_destroy_device(struct libusb_device *dev)
{
struct device_priv *dpriv = (struct device_priv *)dev->os_priv;
usbi_dbg("");
free(dpriv->cdesc);
}
int
netbsd_submit_transfer(struct usbi_transfer *itransfer)
{
struct libusb_transfer *transfer;
struct handle_priv *hpriv;
int err = 0;
usbi_dbg("");
transfer = USBI_TRANSFER_TO_LIBUSB_TRANSFER(itransfer);
hpriv = (struct handle_priv *)transfer->dev_handle->os_priv;
switch (transfer->type) {
case LIBUSB_TRANSFER_TYPE_CONTROL:
err = _sync_control_transfer(itransfer);
break;
case LIBUSB_TRANSFER_TYPE_ISOCHRONOUS:
if (IS_XFEROUT(transfer)) {
/* Isochronous write is not supported */
err = LIBUSB_ERROR_NOT_SUPPORTED;
break;
}
err = _sync_gen_transfer(itransfer);
break;
case LIBUSB_TRANSFER_TYPE_BULK:
case LIBUSB_TRANSFER_TYPE_INTERRUPT:
if (IS_XFEROUT(transfer) &&
transfer->flags & LIBUSB_TRANSFER_ADD_ZERO_PACKET) {
err = LIBUSB_ERROR_NOT_SUPPORTED;
break;
}
err = _sync_gen_transfer(itransfer);
break;
case LIBUSB_TRANSFER_TYPE_BULK_STREAM:
err = LIBUSB_ERROR_NOT_SUPPORTED;
break;
}
if (err)
return (err);
usbi_signal_transfer_completion(itransfer);
return (LIBUSB_SUCCESS);
}
int
netbsd_cancel_transfer(struct usbi_transfer *itransfer)
{
usbi_dbg("");
return (LIBUSB_ERROR_NOT_SUPPORTED);
}
void
netbsd_clear_transfer_priv(struct usbi_transfer *itransfer)
{
usbi_dbg("");
/* Nothing to do */
}
int
netbsd_handle_transfer_completion(struct usbi_transfer *itransfer)
{
return usbi_handle_transfer_completion(itransfer, LIBUSB_TRANSFER_COMPLETED);
}
int
netbsd_clock_gettime(int clkid, struct timespec *tp)
{
usbi_dbg("clock %d", clkid);
if (clkid == USBI_CLOCK_REALTIME)
return clock_gettime(CLOCK_REALTIME, tp);
if (clkid == USBI_CLOCK_MONOTONIC)
return clock_gettime(CLOCK_MONOTONIC, tp);
return (LIBUSB_ERROR_INVALID_PARAM);
}
int
_errno_to_libusb(int err)
{
switch (err) {
case EIO:
return (LIBUSB_ERROR_IO);
case EACCES:
return (LIBUSB_ERROR_ACCESS);
case ENOENT:
return (LIBUSB_ERROR_NO_DEVICE);
case ENOMEM:
return (LIBUSB_ERROR_NO_MEM);
}
usbi_dbg("error: %s", strerror(err));
return (LIBUSB_ERROR_OTHER);
}
int
_cache_active_config_descriptor(struct libusb_device *dev, int fd)
{
struct device_priv *dpriv = (struct device_priv *)dev->os_priv;
struct usb_config_desc ucd;
struct usb_full_desc ufd;
unsigned char* buf;
int len;
usbi_dbg("fd %d", fd);
ucd.ucd_config_index = USB_CURRENT_CONFIG_INDEX;
if ((ioctl(fd, USB_GET_CONFIG_DESC, &ucd)) < 0)
return _errno_to_libusb(errno);
usbi_dbg("active bLength %d", ucd.ucd_desc.bLength);
len = UGETW(ucd.ucd_desc.wTotalLength);
buf = malloc(len);
if (buf == NULL)
return (LIBUSB_ERROR_NO_MEM);
ufd.ufd_config_index = ucd.ucd_config_index;
ufd.ufd_size = len;
ufd.ufd_data = buf;
usbi_dbg("index %d, len %d", ufd.ufd_config_index, len);
if ((ioctl(fd, USB_GET_FULL_DESC, &ufd)) < 0) {
free(buf);
return _errno_to_libusb(errno);
}
if (dpriv->cdesc)
free(dpriv->cdesc);
dpriv->cdesc = buf;
return (0);
}
int
_sync_control_transfer(struct usbi_transfer *itransfer)
{
struct libusb_transfer *transfer;
struct libusb_control_setup *setup;
struct device_priv *dpriv;
struct usb_ctl_request req;
transfer = USBI_TRANSFER_TO_LIBUSB_TRANSFER(itransfer);
dpriv = (struct device_priv *)transfer->dev_handle->dev->os_priv;
setup = (struct libusb_control_setup *)transfer->buffer;
usbi_dbg("type %d request %d value %d index %d length %d timeout %d",
setup->bmRequestType, setup->bRequest,
libusb_le16_to_cpu(setup->wValue),
libusb_le16_to_cpu(setup->wIndex),
libusb_le16_to_cpu(setup->wLength), transfer->timeout);
req.ucr_request.bmRequestType = setup->bmRequestType;
req.ucr_request.bRequest = setup->bRequest;
/* Don't use USETW, libusb already deals with the endianness */
(*(uint16_t *)req.ucr_request.wValue) = setup->wValue;
(*(uint16_t *)req.ucr_request.wIndex) = setup->wIndex;
(*(uint16_t *)req.ucr_request.wLength) = setup->wLength;
req.ucr_data = transfer->buffer + LIBUSB_CONTROL_SETUP_SIZE;
if ((transfer->flags & LIBUSB_TRANSFER_SHORT_NOT_OK) == 0)
req.ucr_flags = USBD_SHORT_XFER_OK;
if ((ioctl(dpriv->fd, USB_SET_TIMEOUT, &transfer->timeout)) < 0)
return _errno_to_libusb(errno);
if ((ioctl(dpriv->fd, USB_DO_REQUEST, &req)) < 0)
return _errno_to_libusb(errno);
itransfer->transferred = req.ucr_actlen;
usbi_dbg("transferred %d", itransfer->transferred);
return (0);
}
int
_access_endpoint(struct libusb_transfer *transfer)
{
struct handle_priv *hpriv;
struct device_priv *dpriv;
char *s, devnode[16];
int fd, endpt;
mode_t mode;
hpriv = (struct handle_priv *)transfer->dev_handle->os_priv;
dpriv = (struct device_priv *)transfer->dev_handle->dev->os_priv;
endpt = UE_GET_ADDR(transfer->endpoint);
mode = IS_XFERIN(transfer) ? O_RDONLY : O_WRONLY;
usbi_dbg("endpoint %d mode %d", endpt, mode);
if (hpriv->endpoints[endpt] < 0) {
/* Pick the right node given the control one */
strlcpy(devnode, dpriv->devnode, sizeof(devnode));
s = strchr(devnode, '.');
snprintf(s, 4, ".%02d", endpt);
/* We may need to read/write to the same endpoint later. */
if (((fd = open(devnode, O_RDWR)) < 0) && (errno == ENXIO))
if ((fd = open(devnode, mode)) < 0)
return (-1);
hpriv->endpoints[endpt] = fd;
}
return (hpriv->endpoints[endpt]);
}
int
_sync_gen_transfer(struct usbi_transfer *itransfer)
{
struct libusb_transfer *transfer;
int fd, nr = 1;
transfer = USBI_TRANSFER_TO_LIBUSB_TRANSFER(itransfer);
/*
* Bulk, Interrupt or Isochronous transfer depends on the
* endpoint and thus the node to open.
*/
if ((fd = _access_endpoint(transfer)) < 0)
return _errno_to_libusb(errno);
if ((ioctl(fd, USB_SET_TIMEOUT, &transfer->timeout)) < 0)
return _errno_to_libusb(errno);
if (IS_XFERIN(transfer)) {
if ((transfer->flags & LIBUSB_TRANSFER_SHORT_NOT_OK) == 0)
if ((ioctl(fd, USB_SET_SHORT_XFER, &nr)) < 0)
return _errno_to_libusb(errno);
nr = read(fd, transfer->buffer, transfer->length);
} else {
nr = write(fd, transfer->buffer, transfer->length);
}
if (nr < 0)
return _errno_to_libusb(errno);
itransfer->transferred = nr;
return (0);
}

771
vendor/github.com/karalabe/hid/libusb/libusb/os/openbsd_usb.c generated vendored Normal file
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@ -0,0 +1,771 @@
/*
* Copyright © 2011-2013 Martin Pieuchot <mpi@openbsd.org>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#include <config.h>
#include <sys/time.h>
#include <sys/types.h>
#include <errno.h>
#include <fcntl.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <dev/usb/usb.h>
#include "libusbi.h"
struct device_priv {
char *devname; /* name of the ugen(4) node */
int fd; /* device file descriptor */
unsigned char *cdesc; /* active config descriptor */
usb_device_descriptor_t ddesc; /* usb device descriptor */
};
struct handle_priv {
int endpoints[USB_MAX_ENDPOINTS];
};
/*
* Backend functions
*/
static int obsd_get_device_list(struct libusb_context *,
struct discovered_devs **);
static int obsd_open(struct libusb_device_handle *);
static void obsd_close(struct libusb_device_handle *);
static int obsd_get_device_descriptor(struct libusb_device *, unsigned char *,
int *);
static int obsd_get_active_config_descriptor(struct libusb_device *,
unsigned char *, size_t, int *);
static int obsd_get_config_descriptor(struct libusb_device *, uint8_t,
unsigned char *, size_t, int *);
static int obsd_get_configuration(struct libusb_device_handle *, int *);
static int obsd_set_configuration(struct libusb_device_handle *, int);
static int obsd_claim_interface(struct libusb_device_handle *, int);
static int obsd_release_interface(struct libusb_device_handle *, int);
static int obsd_set_interface_altsetting(struct libusb_device_handle *, int,
int);
static int obsd_clear_halt(struct libusb_device_handle *, unsigned char);
static int obsd_reset_device(struct libusb_device_handle *);
static void obsd_destroy_device(struct libusb_device *);
static int obsd_submit_transfer(struct usbi_transfer *);
static int obsd_cancel_transfer(struct usbi_transfer *);
static void obsd_clear_transfer_priv(struct usbi_transfer *);
static int obsd_handle_transfer_completion(struct usbi_transfer *);
static int obsd_clock_gettime(int, struct timespec *);
/*
* Private functions
*/
static int _errno_to_libusb(int);
static int _cache_active_config_descriptor(struct libusb_device *);
static int _sync_control_transfer(struct usbi_transfer *);
static int _sync_gen_transfer(struct usbi_transfer *);
static int _access_endpoint(struct libusb_transfer *);
static int _bus_open(int);
const struct usbi_os_backend openbsd_backend = {
"Synchronous OpenBSD backend",
0,
NULL, /* init() */
NULL, /* exit() */
obsd_get_device_list,
NULL, /* hotplug_poll */
obsd_open,
obsd_close,
obsd_get_device_descriptor,
obsd_get_active_config_descriptor,
obsd_get_config_descriptor,
NULL, /* get_config_descriptor_by_value() */
obsd_get_configuration,
obsd_set_configuration,
obsd_claim_interface,
obsd_release_interface,
obsd_set_interface_altsetting,
obsd_clear_halt,
obsd_reset_device,
NULL, /* alloc_streams */
NULL, /* free_streams */
NULL, /* dev_mem_alloc() */
NULL, /* dev_mem_free() */
NULL, /* kernel_driver_active() */
NULL, /* detach_kernel_driver() */
NULL, /* attach_kernel_driver() */
obsd_destroy_device,
obsd_submit_transfer,
obsd_cancel_transfer,
obsd_clear_transfer_priv,
NULL, /* handle_events() */
obsd_handle_transfer_completion,
obsd_clock_gettime,
sizeof(struct device_priv),
sizeof(struct handle_priv),
0, /* transfer_priv_size */
};
#define DEVPATH "/dev/"
#define USBDEV DEVPATH "usb"
int
obsd_get_device_list(struct libusb_context * ctx,
struct discovered_devs **discdevs)
{
struct discovered_devs *ddd;
struct libusb_device *dev;
struct device_priv *dpriv;
struct usb_device_info di;
struct usb_device_ddesc dd;
unsigned long session_id;
char devices[USB_MAX_DEVICES];
char busnode[16];
char *udevname;
int fd, addr, i, j;
usbi_dbg("");
for (i = 0; i < 8; i++) {
snprintf(busnode, sizeof(busnode), USBDEV "%d", i);
if ((fd = open(busnode, O_RDWR)) < 0) {
if (errno != ENOENT && errno != ENXIO)
usbi_err(ctx, "could not open %s", busnode);
continue;
}
bzero(devices, sizeof(devices));
for (addr = 1; addr < USB_MAX_DEVICES; addr++) {
if (devices[addr])
continue;
di.udi_addr = addr;
if (ioctl(fd, USB_DEVICEINFO, &di) < 0)
continue;
/*
* XXX If ugen(4) is attached to the USB device
* it will be used.
*/
udevname = NULL;
for (j = 0; j < USB_MAX_DEVNAMES; j++)
if (!strncmp("ugen", di.udi_devnames[j], 4)) {
udevname = strdup(di.udi_devnames[j]);
break;
}
session_id = (di.udi_bus << 8 | di.udi_addr);
dev = usbi_get_device_by_session_id(ctx, session_id);
if (dev == NULL) {
dev = usbi_alloc_device(ctx, session_id);
if (dev == NULL) {
close(fd);
return (LIBUSB_ERROR_NO_MEM);
}
dev->bus_number = di.udi_bus;
dev->device_address = di.udi_addr;
dev->speed = di.udi_speed;
dpriv = (struct device_priv *)dev->os_priv;
dpriv->fd = -1;
dpriv->cdesc = NULL;
dpriv->devname = udevname;
dd.udd_bus = di.udi_bus;
dd.udd_addr = di.udi_addr;
if (ioctl(fd, USB_DEVICE_GET_DDESC, &dd) < 0) {
libusb_unref_device(dev);
continue;
}
dpriv->ddesc = dd.udd_desc;
if (_cache_active_config_descriptor(dev)) {
libusb_unref_device(dev);
continue;
}
if (usbi_sanitize_device(dev)) {
libusb_unref_device(dev);
continue;
}
}
ddd = discovered_devs_append(*discdevs, dev);
if (ddd == NULL) {
close(fd);
return (LIBUSB_ERROR_NO_MEM);
}
libusb_unref_device(dev);
*discdevs = ddd;
devices[addr] = 1;
}
close(fd);
}
return (LIBUSB_SUCCESS);
}
int
obsd_open(struct libusb_device_handle *handle)
{
struct handle_priv *hpriv = (struct handle_priv *)handle->os_priv;
struct device_priv *dpriv = (struct device_priv *)handle->dev->os_priv;
char devnode[16];
if (dpriv->devname) {
/*
* Only open ugen(4) attached devices read-write, all
* read-only operations are done through the bus node.
*/
snprintf(devnode, sizeof(devnode), DEVPATH "%s.00",
dpriv->devname);
dpriv->fd = open(devnode, O_RDWR);
if (dpriv->fd < 0)
return _errno_to_libusb(errno);
usbi_dbg("open %s: fd %d", devnode, dpriv->fd);
}
return (LIBUSB_SUCCESS);
}
void
obsd_close(struct libusb_device_handle *handle)
{
struct handle_priv *hpriv = (struct handle_priv *)handle->os_priv;
struct device_priv *dpriv = (struct device_priv *)handle->dev->os_priv;
if (dpriv->devname) {
usbi_dbg("close: fd %d", dpriv->fd);
close(dpriv->fd);
dpriv->fd = -1;
}
}
int
obsd_get_device_descriptor(struct libusb_device *dev, unsigned char *buf,
int *host_endian)
{
struct device_priv *dpriv = (struct device_priv *)dev->os_priv;
usbi_dbg("");
memcpy(buf, &dpriv->ddesc, DEVICE_DESC_LENGTH);
*host_endian = 0;
return (LIBUSB_SUCCESS);
}
int
obsd_get_active_config_descriptor(struct libusb_device *dev,
unsigned char *buf, size_t len, int *host_endian)
{
struct device_priv *dpriv = (struct device_priv *)dev->os_priv;
usb_config_descriptor_t *ucd = (usb_config_descriptor_t *)dpriv->cdesc;
len = MIN(len, UGETW(ucd->wTotalLength));
usbi_dbg("len %d", len);
memcpy(buf, dpriv->cdesc, len);
*host_endian = 0;
return (len);
}
int
obsd_get_config_descriptor(struct libusb_device *dev, uint8_t idx,
unsigned char *buf, size_t len, int *host_endian)
{
struct usb_device_fdesc udf;
int fd, err;
if ((fd = _bus_open(dev->bus_number)) < 0)
return _errno_to_libusb(errno);
udf.udf_bus = dev->bus_number;
udf.udf_addr = dev->device_address;
udf.udf_config_index = idx;
udf.udf_size = len;
udf.udf_data = buf;
usbi_dbg("index %d, len %d", udf.udf_config_index, len);
if (ioctl(fd, USB_DEVICE_GET_FDESC, &udf) < 0) {
err = errno;
close(fd);
return _errno_to_libusb(err);
}
close(fd);
*host_endian = 0;
return (len);
}
int
obsd_get_configuration(struct libusb_device_handle *handle, int *config)
{
struct device_priv *dpriv = (struct device_priv *)handle->dev->os_priv;
usb_config_descriptor_t *ucd = (usb_config_descriptor_t *)dpriv->cdesc;
*config = ucd->bConfigurationValue;
usbi_dbg("bConfigurationValue %d", *config);
return (LIBUSB_SUCCESS);
}
int
obsd_set_configuration(struct libusb_device_handle *handle, int config)
{
struct device_priv *dpriv = (struct device_priv *)handle->dev->os_priv;
if (dpriv->devname == NULL)
return (LIBUSB_ERROR_NOT_SUPPORTED);
usbi_dbg("bConfigurationValue %d", config);
if (ioctl(dpriv->fd, USB_SET_CONFIG, &config) < 0)
return _errno_to_libusb(errno);
return _cache_active_config_descriptor(handle->dev);
}
int
obsd_claim_interface(struct libusb_device_handle *handle, int iface)
{
struct handle_priv *hpriv = (struct handle_priv *)handle->os_priv;
int i;
for (i = 0; i < USB_MAX_ENDPOINTS; i++)
hpriv->endpoints[i] = -1;
return (LIBUSB_SUCCESS);
}
int
obsd_release_interface(struct libusb_device_handle *handle, int iface)
{
struct handle_priv *hpriv = (struct handle_priv *)handle->os_priv;
int i;
for (i = 0; i < USB_MAX_ENDPOINTS; i++)
if (hpriv->endpoints[i] >= 0)
close(hpriv->endpoints[i]);
return (LIBUSB_SUCCESS);
}
int
obsd_set_interface_altsetting(struct libusb_device_handle *handle, int iface,
int altsetting)
{
struct device_priv *dpriv = (struct device_priv *)handle->dev->os_priv;
struct usb_alt_interface intf;
if (dpriv->devname == NULL)
return (LIBUSB_ERROR_NOT_SUPPORTED);
usbi_dbg("iface %d, setting %d", iface, altsetting);
memset(&intf, 0, sizeof(intf));
intf.uai_interface_index = iface;
intf.uai_alt_no = altsetting;
if (ioctl(dpriv->fd, USB_SET_ALTINTERFACE, &intf) < 0)
return _errno_to_libusb(errno);
return (LIBUSB_SUCCESS);
}
int
obsd_clear_halt(struct libusb_device_handle *handle, unsigned char endpoint)
{
struct usb_ctl_request req;
int fd, err;
if ((fd = _bus_open(handle->dev->bus_number)) < 0)
return _errno_to_libusb(errno);
usbi_dbg("");
req.ucr_addr = handle->dev->device_address;
req.ucr_request.bmRequestType = UT_WRITE_ENDPOINT;
req.ucr_request.bRequest = UR_CLEAR_FEATURE;
USETW(req.ucr_request.wValue, UF_ENDPOINT_HALT);
USETW(req.ucr_request.wIndex, endpoint);
USETW(req.ucr_request.wLength, 0);
if (ioctl(fd, USB_REQUEST, &req) < 0) {
err = errno;
close(fd);
return _errno_to_libusb(err);
}
close(fd);
return (LIBUSB_SUCCESS);
}
int
obsd_reset_device(struct libusb_device_handle *handle)
{
usbi_dbg("");
return (LIBUSB_ERROR_NOT_SUPPORTED);
}
void
obsd_destroy_device(struct libusb_device *dev)
{
struct device_priv *dpriv = (struct device_priv *)dev->os_priv;
usbi_dbg("");
free(dpriv->cdesc);
free(dpriv->devname);
}
int
obsd_submit_transfer(struct usbi_transfer *itransfer)
{
struct libusb_transfer *transfer;
struct handle_priv *hpriv;
int err = 0;
usbi_dbg("");
transfer = USBI_TRANSFER_TO_LIBUSB_TRANSFER(itransfer);
hpriv = (struct handle_priv *)transfer->dev_handle->os_priv;
switch (transfer->type) {
case LIBUSB_TRANSFER_TYPE_CONTROL:
err = _sync_control_transfer(itransfer);
break;
case LIBUSB_TRANSFER_TYPE_ISOCHRONOUS:
if (IS_XFEROUT(transfer)) {
/* Isochronous write is not supported */
err = LIBUSB_ERROR_NOT_SUPPORTED;
break;
}
err = _sync_gen_transfer(itransfer);
break;
case LIBUSB_TRANSFER_TYPE_BULK:
case LIBUSB_TRANSFER_TYPE_INTERRUPT:
if (IS_XFEROUT(transfer) &&
transfer->flags & LIBUSB_TRANSFER_ADD_ZERO_PACKET) {
err = LIBUSB_ERROR_NOT_SUPPORTED;
break;
}
err = _sync_gen_transfer(itransfer);
break;
case LIBUSB_TRANSFER_TYPE_BULK_STREAM:
err = LIBUSB_ERROR_NOT_SUPPORTED;
break;
}
if (err)
return (err);
usbi_signal_transfer_completion(itransfer);
return (LIBUSB_SUCCESS);
}
int
obsd_cancel_transfer(struct usbi_transfer *itransfer)
{
usbi_dbg("");
return (LIBUSB_ERROR_NOT_SUPPORTED);
}
void
obsd_clear_transfer_priv(struct usbi_transfer *itransfer)
{
usbi_dbg("");
/* Nothing to do */
}
int
obsd_handle_transfer_completion(struct usbi_transfer *itransfer)
{
return usbi_handle_transfer_completion(itransfer, LIBUSB_TRANSFER_COMPLETED);
}
int
obsd_clock_gettime(int clkid, struct timespec *tp)
{
usbi_dbg("clock %d", clkid);
if (clkid == USBI_CLOCK_REALTIME)
return clock_gettime(CLOCK_REALTIME, tp);
if (clkid == USBI_CLOCK_MONOTONIC)
return clock_gettime(CLOCK_MONOTONIC, tp);
return (LIBUSB_ERROR_INVALID_PARAM);
}
int
_errno_to_libusb(int err)
{
usbi_dbg("error: %s (%d)", strerror(err), err);
switch (err) {
case EIO:
return (LIBUSB_ERROR_IO);
case EACCES:
return (LIBUSB_ERROR_ACCESS);
case ENOENT:
return (LIBUSB_ERROR_NO_DEVICE);
case ENOMEM:
return (LIBUSB_ERROR_NO_MEM);
case ETIMEDOUT:
return (LIBUSB_ERROR_TIMEOUT);
}
return (LIBUSB_ERROR_OTHER);
}
int
_cache_active_config_descriptor(struct libusb_device *dev)
{
struct device_priv *dpriv = (struct device_priv *)dev->os_priv;
struct usb_device_cdesc udc;
struct usb_device_fdesc udf;
unsigned char* buf;
int fd, len, err;
if ((fd = _bus_open(dev->bus_number)) < 0)
return _errno_to_libusb(errno);
usbi_dbg("fd %d, addr %d", fd, dev->device_address);
udc.udc_bus = dev->bus_number;
udc.udc_addr = dev->device_address;
udc.udc_config_index = USB_CURRENT_CONFIG_INDEX;
if (ioctl(fd, USB_DEVICE_GET_CDESC, &udc) < 0) {
err = errno;
close(fd);
return _errno_to_libusb(errno);
}
usbi_dbg("active bLength %d", udc.udc_desc.bLength);
len = UGETW(udc.udc_desc.wTotalLength);
buf = malloc(len);
if (buf == NULL)
return (LIBUSB_ERROR_NO_MEM);
udf.udf_bus = dev->bus_number;
udf.udf_addr = dev->device_address;
udf.udf_config_index = udc.udc_config_index;
udf.udf_size = len;
udf.udf_data = buf;
usbi_dbg("index %d, len %d", udf.udf_config_index, len);
if (ioctl(fd, USB_DEVICE_GET_FDESC, &udf) < 0) {
err = errno;
close(fd);
free(buf);
return _errno_to_libusb(err);
}
close(fd);
if (dpriv->cdesc)
free(dpriv->cdesc);
dpriv->cdesc = buf;
return (LIBUSB_SUCCESS);
}
int
_sync_control_transfer(struct usbi_transfer *itransfer)
{
struct libusb_transfer *transfer;
struct libusb_control_setup *setup;
struct device_priv *dpriv;
struct usb_ctl_request req;
transfer = USBI_TRANSFER_TO_LIBUSB_TRANSFER(itransfer);
dpriv = (struct device_priv *)transfer->dev_handle->dev->os_priv;
setup = (struct libusb_control_setup *)transfer->buffer;
usbi_dbg("type %x request %x value %x index %d length %d timeout %d",
setup->bmRequestType, setup->bRequest,
libusb_le16_to_cpu(setup->wValue),
libusb_le16_to_cpu(setup->wIndex),
libusb_le16_to_cpu(setup->wLength), transfer->timeout);
req.ucr_addr = transfer->dev_handle->dev->device_address;
req.ucr_request.bmRequestType = setup->bmRequestType;
req.ucr_request.bRequest = setup->bRequest;
/* Don't use USETW, libusb already deals with the endianness */
(*(uint16_t *)req.ucr_request.wValue) = setup->wValue;
(*(uint16_t *)req.ucr_request.wIndex) = setup->wIndex;
(*(uint16_t *)req.ucr_request.wLength) = setup->wLength;
req.ucr_data = transfer->buffer + LIBUSB_CONTROL_SETUP_SIZE;
if ((transfer->flags & LIBUSB_TRANSFER_SHORT_NOT_OK) == 0)
req.ucr_flags = USBD_SHORT_XFER_OK;
if (dpriv->devname == NULL) {
/*
* XXX If the device is not attached to ugen(4) it is
* XXX still possible to submit a control transfer but
* XXX with the default timeout only.
*/
int fd, err;
if ((fd = _bus_open(transfer->dev_handle->dev->bus_number)) < 0)
return _errno_to_libusb(errno);
if ((ioctl(fd, USB_REQUEST, &req)) < 0) {
err = errno;
close(fd);
return _errno_to_libusb(err);
}
close(fd);
} else {
if ((ioctl(dpriv->fd, USB_SET_TIMEOUT, &transfer->timeout)) < 0)
return _errno_to_libusb(errno);
if ((ioctl(dpriv->fd, USB_DO_REQUEST, &req)) < 0)
return _errno_to_libusb(errno);
}
itransfer->transferred = req.ucr_actlen;
usbi_dbg("transferred %d", itransfer->transferred);
return (0);
}
int
_access_endpoint(struct libusb_transfer *transfer)
{
struct handle_priv *hpriv;
struct device_priv *dpriv;
char devnode[16];
int fd, endpt;
mode_t mode;
hpriv = (struct handle_priv *)transfer->dev_handle->os_priv;
dpriv = (struct device_priv *)transfer->dev_handle->dev->os_priv;
endpt = UE_GET_ADDR(transfer->endpoint);
mode = IS_XFERIN(transfer) ? O_RDONLY : O_WRONLY;
usbi_dbg("endpoint %d mode %d", endpt, mode);
if (hpriv->endpoints[endpt] < 0) {
/* Pick the right endpoint node */
snprintf(devnode, sizeof(devnode), DEVPATH "%s.%02d",
dpriv->devname, endpt);
/* We may need to read/write to the same endpoint later. */
if (((fd = open(devnode, O_RDWR)) < 0) && (errno == ENXIO))
if ((fd = open(devnode, mode)) < 0)
return (-1);
hpriv->endpoints[endpt] = fd;
}
return (hpriv->endpoints[endpt]);
}
int
_sync_gen_transfer(struct usbi_transfer *itransfer)
{
struct libusb_transfer *transfer;
struct device_priv *dpriv;
int fd, nr = 1;
transfer = USBI_TRANSFER_TO_LIBUSB_TRANSFER(itransfer);
dpriv = (struct device_priv *)transfer->dev_handle->dev->os_priv;
if (dpriv->devname == NULL)
return (LIBUSB_ERROR_NOT_SUPPORTED);
/*
* Bulk, Interrupt or Isochronous transfer depends on the
* endpoint and thus the node to open.
*/
if ((fd = _access_endpoint(transfer)) < 0)
return _errno_to_libusb(errno);
if ((ioctl(fd, USB_SET_TIMEOUT, &transfer->timeout)) < 0)
return _errno_to_libusb(errno);
if (IS_XFERIN(transfer)) {
if ((transfer->flags & LIBUSB_TRANSFER_SHORT_NOT_OK) == 0)
if ((ioctl(fd, USB_SET_SHORT_XFER, &nr)) < 0)
return _errno_to_libusb(errno);
nr = read(fd, transfer->buffer, transfer->length);
} else {
nr = write(fd, transfer->buffer, transfer->length);
}
if (nr < 0)
return _errno_to_libusb(errno);
itransfer->transferred = nr;
return (0);
}
int
_bus_open(int number)
{
char busnode[16];
snprintf(busnode, sizeof(busnode), USBDEV "%d", number);
return open(busnode, O_RDWR);
}

53
vendor/github.com/karalabe/hid/libusb/libusb/os/poll_posix.c generated vendored Normal file
View File

@ -0,0 +1,53 @@
/*
* poll_posix: poll compatibility wrapper for POSIX systems
* Copyright © 2013 RealVNC Ltd.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*
*/
#include <config.h>
#include <unistd.h>
#include <fcntl.h>
#include <errno.h>
#include <stdlib.h>
#include "libusbi.h"
int usbi_pipe(int pipefd[2])
{
int ret = pipe(pipefd);
if (ret != 0) {
return ret;
}
ret = fcntl(pipefd[1], F_GETFL);
if (ret == -1) {
usbi_dbg("Failed to get pipe fd flags: %d", errno);
goto err_close_pipe;
}
ret = fcntl(pipefd[1], F_SETFL, ret | O_NONBLOCK);
if (ret != 0) {
usbi_dbg("Failed to set non-blocking on new pipe: %d", errno);
goto err_close_pipe;
}
return 0;
err_close_pipe:
usbi_close(pipefd[0]);
usbi_close(pipefd[1]);
return ret;
}

11
vendor/github.com/karalabe/hid/libusb/libusb/os/poll_posix.h generated vendored Normal file
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@ -0,0 +1,11 @@
#ifndef LIBUSB_POLL_POSIX_H
#define LIBUSB_POLL_POSIX_H
#define usbi_write write
#define usbi_read read
#define usbi_close close
#define usbi_poll poll
int usbi_pipe(int pipefd[2]);
#endif /* LIBUSB_POLL_POSIX_H */

728
vendor/github.com/karalabe/hid/libusb/libusb/os/poll_windows.c generated vendored Normal file
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@ -0,0 +1,728 @@
/*
* poll_windows: poll compatibility wrapper for Windows
* Copyright © 2012-2013 RealVNC Ltd.
* Copyright © 2009-2010 Pete Batard <pete@akeo.ie>
* With contributions from Michael Plante, Orin Eman et al.
* Parts of poll implementation from libusb-win32, by Stephan Meyer et al.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*
*/
/*
* poll() and pipe() Windows compatibility layer for libusb 1.0
*
* The way this layer works is by using OVERLAPPED with async I/O transfers, as
* OVERLAPPED have an associated event which is flagged for I/O completion.
*
* For USB pollable async I/O, you would typically:
* - obtain a Windows HANDLE to a file or device that has been opened in
* OVERLAPPED mode
* - call usbi_create_fd with this handle to obtain a custom fd.
* Note that if you need simultaneous R/W access, you need to call create_fd
* twice, once in RW_READ and once in RW_WRITE mode to obtain 2 separate
* pollable fds
* - leave the core functions call the poll routine and flag POLLIN/POLLOUT
*
* The pipe pollable synchronous I/O works using the overlapped event associated
* with a fake pipe. The read/write functions are only meant to be used in that
* context.
*/
#include <config.h>
#include <errno.h>
#include <stdio.h>
#include <stdlib.h>
#include "libusbi.h"
// Uncomment to debug the polling layer
//#define DEBUG_POLL_WINDOWS
#if defined(DEBUG_POLL_WINDOWS)
#define poll_dbg usbi_dbg
#else
// MSVC++ < 2005 cannot use a variadic argument and non MSVC
// compilers produce warnings if parenthesis are omitted.
#if defined(_MSC_VER) && (_MSC_VER < 1400)
#define poll_dbg
#else
#define poll_dbg(...)
#endif
#endif
#if defined(_PREFAST_)
#pragma warning(disable:28719)
#endif
#define CHECK_INIT_POLLING do {if(!is_polling_set) init_polling();} while(0)
// public fd data
const struct winfd INVALID_WINFD = {-1, INVALID_HANDLE_VALUE, NULL, NULL, NULL, RW_NONE};
struct winfd poll_fd[MAX_FDS];
// internal fd data
struct {
CRITICAL_SECTION mutex; // lock for fds
// Additional variables for XP CancelIoEx partial emulation
HANDLE original_handle;
DWORD thread_id;
} _poll_fd[MAX_FDS];
// globals
BOOLEAN is_polling_set = FALSE;
LONG pipe_number = 0;
static volatile LONG compat_spinlock = 0;
#if !defined(_WIN32_WCE)
// CancelIoEx, available on Vista and later only, provides the ability to cancel
// a single transfer (OVERLAPPED) when used. As it may not be part of any of the
// platform headers, we hook into the Kernel32 system DLL directly to seek it.
static BOOL (__stdcall *pCancelIoEx)(HANDLE, LPOVERLAPPED) = NULL;
#define Use_Duplicate_Handles (pCancelIoEx == NULL)
static inline void setup_cancel_io(void)
{
HMODULE hKernel32 = GetModuleHandleA("KERNEL32");
if (hKernel32 != NULL) {
pCancelIoEx = (BOOL (__stdcall *)(HANDLE,LPOVERLAPPED))
GetProcAddress(hKernel32, "CancelIoEx");
}
usbi_dbg("Will use CancelIo%s for I/O cancellation",
Use_Duplicate_Handles?"":"Ex");
}
static inline BOOL cancel_io(int _index)
{
if ((_index < 0) || (_index >= MAX_FDS)) {
return FALSE;
}
if ( (poll_fd[_index].fd < 0) || (poll_fd[_index].handle == INVALID_HANDLE_VALUE)
|| (poll_fd[_index].handle == 0) || (poll_fd[_index].overlapped == NULL) ) {
return TRUE;
}
if (poll_fd[_index].itransfer && poll_fd[_index].cancel_fn) {
// Cancel outstanding transfer via the specific callback
(*poll_fd[_index].cancel_fn)(poll_fd[_index].itransfer);
return TRUE;
}
if (pCancelIoEx != NULL) {
return (*pCancelIoEx)(poll_fd[_index].handle, poll_fd[_index].overlapped);
}
if (_poll_fd[_index].thread_id == GetCurrentThreadId()) {
return CancelIo(poll_fd[_index].handle);
}
usbi_warn(NULL, "Unable to cancel I/O that was started from another thread");
return FALSE;
}
#else
#define Use_Duplicate_Handles FALSE
static __inline void setup_cancel_io()
{
// No setup needed on WinCE
}
static __inline BOOL cancel_io(int _index)
{
if ((_index < 0) || (_index >= MAX_FDS)) {
return FALSE;
}
if ( (poll_fd[_index].fd < 0) || (poll_fd[_index].handle == INVALID_HANDLE_VALUE)
|| (poll_fd[_index].handle == 0) || (poll_fd[_index].overlapped == NULL) ) {
return TRUE;
}
if (poll_fd[_index].itransfer && poll_fd[_index].cancel_fn) {
// Cancel outstanding transfer via the specific callback
(*poll_fd[_index].cancel_fn)(poll_fd[_index].itransfer);
}
return TRUE;
}
#endif
// Init
void init_polling(void)
{
int i;
while (InterlockedExchange((LONG *)&compat_spinlock, 1) == 1) {
SleepEx(0, TRUE);
}
if (!is_polling_set) {
setup_cancel_io();
for (i=0; i<MAX_FDS; i++) {
poll_fd[i] = INVALID_WINFD;
_poll_fd[i].original_handle = INVALID_HANDLE_VALUE;
_poll_fd[i].thread_id = 0;
InitializeCriticalSection(&_poll_fd[i].mutex);
}
is_polling_set = TRUE;
}
InterlockedExchange((LONG *)&compat_spinlock, 0);
}
// Internal function to retrieve the table index (and lock the fd mutex)
static int _fd_to_index_and_lock(int fd)
{
int i;
if (fd < 0)
return -1;
for (i=0; i<MAX_FDS; i++) {
if (poll_fd[i].fd == fd) {
EnterCriticalSection(&_poll_fd[i].mutex);
// fd might have changed before we got to critical
if (poll_fd[i].fd != fd) {
LeaveCriticalSection(&_poll_fd[i].mutex);
continue;
}
return i;
}
}
return -1;
}
static OVERLAPPED *create_overlapped(void)
{
OVERLAPPED *overlapped = (OVERLAPPED*) calloc(1, sizeof(OVERLAPPED));
if (overlapped == NULL) {
return NULL;
}
overlapped->hEvent = CreateEvent(NULL, TRUE, FALSE, NULL);
if(overlapped->hEvent == NULL) {
free (overlapped);
return NULL;
}
return overlapped;
}
static void free_overlapped(OVERLAPPED *overlapped)
{
if (overlapped == NULL)
return;
if ( (overlapped->hEvent != 0)
&& (overlapped->hEvent != INVALID_HANDLE_VALUE) ) {
CloseHandle(overlapped->hEvent);
}
free(overlapped);
}
void exit_polling(void)
{
int i;
while (InterlockedExchange((LONG *)&compat_spinlock, 1) == 1) {
SleepEx(0, TRUE);
}
if (is_polling_set) {
is_polling_set = FALSE;
for (i=0; i<MAX_FDS; i++) {
// Cancel any async I/O (handle can be invalid)
cancel_io(i);
// If anything was pending on that I/O, it should be
// terminating, and we should be able to access the fd
// mutex lock before too long
EnterCriticalSection(&_poll_fd[i].mutex);
free_overlapped(poll_fd[i].overlapped);
if (Use_Duplicate_Handles) {
// Close duplicate handle
if (_poll_fd[i].original_handle != INVALID_HANDLE_VALUE) {
CloseHandle(poll_fd[i].handle);
}
}
poll_fd[i] = INVALID_WINFD;
LeaveCriticalSection(&_poll_fd[i].mutex);
DeleteCriticalSection(&_poll_fd[i].mutex);
}
}
InterlockedExchange((LONG *)&compat_spinlock, 0);
}
/*
* Create a fake pipe.
* As libusb only uses pipes for signaling, all we need from a pipe is an
* event. To that extent, we create a single wfd and overlapped as a means
* to access that event.
*/
int usbi_pipe(int filedes[2])
{
int i;
OVERLAPPED* overlapped;
CHECK_INIT_POLLING;
overlapped = create_overlapped();
if (overlapped == NULL) {
return -1;
}
// The overlapped must have status pending for signaling to work in poll
overlapped->Internal = STATUS_PENDING;
overlapped->InternalHigh = 0;
for (i=0; i<MAX_FDS; i++) {
if (poll_fd[i].fd < 0) {
EnterCriticalSection(&_poll_fd[i].mutex);
// fd might have been allocated before we got to critical
if (poll_fd[i].fd >= 0) {
LeaveCriticalSection(&_poll_fd[i].mutex);
continue;
}
// Use index as the unique fd number
poll_fd[i].fd = i;
// Read end of the "pipe"
filedes[0] = poll_fd[i].fd;
// We can use the same handle for both ends
filedes[1] = filedes[0];
poll_fd[i].handle = DUMMY_HANDLE;
poll_fd[i].overlapped = overlapped;
// There's no polling on the write end, so we just use READ for our needs
poll_fd[i].rw = RW_READ;
_poll_fd[i].original_handle = INVALID_HANDLE_VALUE;
LeaveCriticalSection(&_poll_fd[i].mutex);
return 0;
}
}
free_overlapped(overlapped);
return -1;
}
/*
* Create both an fd and an OVERLAPPED from an open Windows handle, so that
* it can be used with our polling function
* The handle MUST support overlapped transfers (usually requires CreateFile
* with FILE_FLAG_OVERLAPPED)
* Return a pollable file descriptor struct, or INVALID_WINFD on error
*
* Note that the fd returned by this function is a per-transfer fd, rather
* than a per-session fd and cannot be used for anything else but our
* custom functions (the fd itself points to the NUL: device)
* if you plan to do R/W on the same handle, you MUST create 2 fds: one for
* read and one for write. Using a single R/W fd is unsupported and will
* produce unexpected results
*/
struct winfd usbi_create_fd(HANDLE handle, int access_mode, struct usbi_transfer *itransfer, cancel_transfer *cancel_fn)
{
int i;
struct winfd wfd = INVALID_WINFD;
OVERLAPPED* overlapped = NULL;
CHECK_INIT_POLLING;
if ((handle == 0) || (handle == INVALID_HANDLE_VALUE)) {
return INVALID_WINFD;
}
wfd.itransfer = itransfer;
wfd.cancel_fn = cancel_fn;
if ((access_mode != RW_READ) && (access_mode != RW_WRITE)) {
usbi_warn(NULL, "only one of RW_READ or RW_WRITE are supported. "
"If you want to poll for R/W simultaneously, create multiple fds from the same handle.");
return INVALID_WINFD;
}
if (access_mode == RW_READ) {
wfd.rw = RW_READ;
} else {
wfd.rw = RW_WRITE;
}
overlapped = create_overlapped();
if(overlapped == NULL) {
return INVALID_WINFD;
}
for (i=0; i<MAX_FDS; i++) {
if (poll_fd[i].fd < 0) {
EnterCriticalSection(&_poll_fd[i].mutex);
// fd might have been removed before we got to critical
if (poll_fd[i].fd >= 0) {
LeaveCriticalSection(&_poll_fd[i].mutex);
continue;
}
// Use index as the unique fd number
wfd.fd = i;
// Attempt to emulate some of the CancelIoEx behaviour on platforms
// that don't have it
if (Use_Duplicate_Handles) {
_poll_fd[i].thread_id = GetCurrentThreadId();
if (!DuplicateHandle(GetCurrentProcess(), handle, GetCurrentProcess(),
&wfd.handle, 0, TRUE, DUPLICATE_SAME_ACCESS)) {
usbi_dbg("could not duplicate handle for CancelIo - using original one");
wfd.handle = handle;
// Make sure we won't close the original handle on fd deletion then
_poll_fd[i].original_handle = INVALID_HANDLE_VALUE;
} else {
_poll_fd[i].original_handle = handle;
}
} else {
wfd.handle = handle;
}
wfd.overlapped = overlapped;
memcpy(&poll_fd[i], &wfd, sizeof(struct winfd));
LeaveCriticalSection(&_poll_fd[i].mutex);
return wfd;
}
}
free_overlapped(overlapped);
return INVALID_WINFD;
}
static void _free_index(int _index)
{
// Cancel any async IO (Don't care about the validity of our handles for this)
cancel_io(_index);
// close the duplicate handle (if we have an actual duplicate)
if (Use_Duplicate_Handles) {
if (_poll_fd[_index].original_handle != INVALID_HANDLE_VALUE) {
CloseHandle(poll_fd[_index].handle);
}
_poll_fd[_index].original_handle = INVALID_HANDLE_VALUE;
_poll_fd[_index].thread_id = 0;
}
free_overlapped(poll_fd[_index].overlapped);
poll_fd[_index] = INVALID_WINFD;
}
/*
* Release a pollable file descriptor.
*
* Note that the associated Windows handle is not closed by this call
*/
void usbi_free_fd(struct winfd *wfd)
{
int _index;
CHECK_INIT_POLLING;
_index = _fd_to_index_and_lock(wfd->fd);
if (_index < 0) {
return;
}
_free_index(_index);
*wfd = INVALID_WINFD;
LeaveCriticalSection(&_poll_fd[_index].mutex);
}
/*
* The functions below perform various conversions between fd, handle and OVERLAPPED
*/
struct winfd fd_to_winfd(int fd)
{
int i;
struct winfd wfd;
CHECK_INIT_POLLING;
if (fd < 0)
return INVALID_WINFD;
for (i=0; i<MAX_FDS; i++) {
if (poll_fd[i].fd == fd) {
EnterCriticalSection(&_poll_fd[i].mutex);
// fd might have been deleted before we got to critical
if (poll_fd[i].fd != fd) {
LeaveCriticalSection(&_poll_fd[i].mutex);
continue;
}
memcpy(&wfd, &poll_fd[i], sizeof(struct winfd));
LeaveCriticalSection(&_poll_fd[i].mutex);
return wfd;
}
}
return INVALID_WINFD;
}
struct winfd handle_to_winfd(HANDLE handle)
{
int i;
struct winfd wfd;
CHECK_INIT_POLLING;
if ((handle == 0) || (handle == INVALID_HANDLE_VALUE))
return INVALID_WINFD;
for (i=0; i<MAX_FDS; i++) {
if (poll_fd[i].handle == handle) {
EnterCriticalSection(&_poll_fd[i].mutex);
// fd might have been deleted before we got to critical
if (poll_fd[i].handle != handle) {
LeaveCriticalSection(&_poll_fd[i].mutex);
continue;
}
memcpy(&wfd, &poll_fd[i], sizeof(struct winfd));
LeaveCriticalSection(&_poll_fd[i].mutex);
return wfd;
}
}
return INVALID_WINFD;
}
struct winfd overlapped_to_winfd(OVERLAPPED* overlapped)
{
int i;
struct winfd wfd;
CHECK_INIT_POLLING;
if (overlapped == NULL)
return INVALID_WINFD;
for (i=0; i<MAX_FDS; i++) {
if (poll_fd[i].overlapped == overlapped) {
EnterCriticalSection(&_poll_fd[i].mutex);
// fd might have been deleted before we got to critical
if (poll_fd[i].overlapped != overlapped) {
LeaveCriticalSection(&_poll_fd[i].mutex);
continue;
}
memcpy(&wfd, &poll_fd[i], sizeof(struct winfd));
LeaveCriticalSection(&_poll_fd[i].mutex);
return wfd;
}
}
return INVALID_WINFD;
}
/*
* POSIX poll equivalent, using Windows OVERLAPPED
* Currently, this function only accepts one of POLLIN or POLLOUT per fd
* (but you can create multiple fds from the same handle for read and write)
*/
int usbi_poll(struct pollfd *fds, unsigned int nfds, int timeout)
{
unsigned i;
int _index, object_index, triggered;
HANDLE *handles_to_wait_on;
int *handle_to_index;
DWORD nb_handles_to_wait_on = 0;
DWORD ret;
CHECK_INIT_POLLING;
triggered = 0;
handles_to_wait_on = (HANDLE*) calloc(nfds+1, sizeof(HANDLE)); // +1 for fd_update
handle_to_index = (int*) calloc(nfds, sizeof(int));
if ((handles_to_wait_on == NULL) || (handle_to_index == NULL)) {
errno = ENOMEM;
triggered = -1;
goto poll_exit;
}
for (i = 0; i < nfds; ++i) {
fds[i].revents = 0;
// Only one of POLLIN or POLLOUT can be selected with this version of poll (not both)
if ((fds[i].events & ~POLLIN) && (!(fds[i].events & POLLOUT))) {
fds[i].revents |= POLLERR;
errno = EACCES;
usbi_warn(NULL, "unsupported set of events");
triggered = -1;
goto poll_exit;
}
_index = _fd_to_index_and_lock(fds[i].fd);
poll_dbg("fd[%d]=%d: (overlapped=%p) got events %04X", i, poll_fd[_index].fd, poll_fd[_index].overlapped, fds[i].events);
if ( (_index < 0) || (poll_fd[_index].handle == INVALID_HANDLE_VALUE)
|| (poll_fd[_index].handle == 0) || (poll_fd[_index].overlapped == NULL)) {
fds[i].revents |= POLLNVAL | POLLERR;
errno = EBADF;
if (_index >= 0) {
LeaveCriticalSection(&_poll_fd[_index].mutex);
}
usbi_warn(NULL, "invalid fd");
triggered = -1;
goto poll_exit;
}
// IN or OUT must match our fd direction
if ((fds[i].events & POLLIN) && (poll_fd[_index].rw != RW_READ)) {
fds[i].revents |= POLLNVAL | POLLERR;
errno = EBADF;
usbi_warn(NULL, "attempted POLLIN on fd without READ access");
LeaveCriticalSection(&_poll_fd[_index].mutex);
triggered = -1;
goto poll_exit;
}
if ((fds[i].events & POLLOUT) && (poll_fd[_index].rw != RW_WRITE)) {
fds[i].revents |= POLLNVAL | POLLERR;
errno = EBADF;
usbi_warn(NULL, "attempted POLLOUT on fd without WRITE access");
LeaveCriticalSection(&_poll_fd[_index].mutex);
triggered = -1;
goto poll_exit;
}
// The following macro only works if overlapped I/O was reported pending
if ( (HasOverlappedIoCompleted(poll_fd[_index].overlapped))
|| (HasOverlappedIoCompletedSync(poll_fd[_index].overlapped)) ) {
poll_dbg(" completed");
// checks above should ensure this works:
fds[i].revents = fds[i].events;
triggered++;
} else {
handles_to_wait_on[nb_handles_to_wait_on] = poll_fd[_index].overlapped->hEvent;
handle_to_index[nb_handles_to_wait_on] = i;
nb_handles_to_wait_on++;
}
LeaveCriticalSection(&_poll_fd[_index].mutex);
}
// If nothing was triggered, wait on all fds that require it
if ((timeout != 0) && (triggered == 0) && (nb_handles_to_wait_on != 0)) {
if (timeout < 0) {
poll_dbg("starting infinite wait for %u handles...", (unsigned int)nb_handles_to_wait_on);
} else {
poll_dbg("starting %d ms wait for %u handles...", timeout, (unsigned int)nb_handles_to_wait_on);
}
ret = WaitForMultipleObjects(nb_handles_to_wait_on, handles_to_wait_on,
FALSE, (timeout<0)?INFINITE:(DWORD)timeout);
object_index = ret-WAIT_OBJECT_0;
if ((object_index >= 0) && ((DWORD)object_index < nb_handles_to_wait_on)) {
poll_dbg(" completed after wait");
i = handle_to_index[object_index];
_index = _fd_to_index_and_lock(fds[i].fd);
fds[i].revents = fds[i].events;
triggered++;
if (_index >= 0) {
LeaveCriticalSection(&_poll_fd[_index].mutex);
}
} else if (ret == WAIT_TIMEOUT) {
poll_dbg(" timed out");
triggered = 0; // 0 = timeout
} else {
errno = EIO;
triggered = -1; // error
}
}
poll_exit:
if (handles_to_wait_on != NULL) {
free(handles_to_wait_on);
}
if (handle_to_index != NULL) {
free(handle_to_index);
}
return triggered;
}
/*
* close a fake pipe fd
*/
int usbi_close(int fd)
{
int _index;
int r = -1;
CHECK_INIT_POLLING;
_index = _fd_to_index_and_lock(fd);
if (_index < 0) {
errno = EBADF;
} else {
free_overlapped(poll_fd[_index].overlapped);
poll_fd[_index] = INVALID_WINFD;
LeaveCriticalSection(&_poll_fd[_index].mutex);
}
return r;
}
/*
* synchronous write for fake "pipe" signaling
*/
ssize_t usbi_write(int fd, const void *buf, size_t count)
{
int _index;
UNUSED(buf);
CHECK_INIT_POLLING;
if (count != sizeof(unsigned char)) {
usbi_err(NULL, "this function should only used for signaling");
return -1;
}
_index = _fd_to_index_and_lock(fd);
if ( (_index < 0) || (poll_fd[_index].overlapped == NULL) ) {
errno = EBADF;
if (_index >= 0) {
LeaveCriticalSection(&_poll_fd[_index].mutex);
}
return -1;
}
poll_dbg("set pipe event (fd = %d, thread = %08X)", _index, (unsigned int)GetCurrentThreadId());
SetEvent(poll_fd[_index].overlapped->hEvent);
poll_fd[_index].overlapped->Internal = STATUS_WAIT_0;
// If two threads write on the pipe at the same time, we need to
// process two separate reads => use the overlapped as a counter
poll_fd[_index].overlapped->InternalHigh++;
LeaveCriticalSection(&_poll_fd[_index].mutex);
return sizeof(unsigned char);
}
/*
* synchronous read for fake "pipe" signaling
*/
ssize_t usbi_read(int fd, void *buf, size_t count)
{
int _index;
ssize_t r = -1;
UNUSED(buf);
CHECK_INIT_POLLING;
if (count != sizeof(unsigned char)) {
usbi_err(NULL, "this function should only used for signaling");
return -1;
}
_index = _fd_to_index_and_lock(fd);
if (_index < 0) {
errno = EBADF;
return -1;
}
if (WaitForSingleObject(poll_fd[_index].overlapped->hEvent, INFINITE) != WAIT_OBJECT_0) {
usbi_warn(NULL, "waiting for event failed: %u", (unsigned int)GetLastError());
errno = EIO;
goto out;
}
poll_dbg("clr pipe event (fd = %d, thread = %08X)", _index, (unsigned int)GetCurrentThreadId());
poll_fd[_index].overlapped->InternalHigh--;
// Don't reset unless we don't have any more events to process
if (poll_fd[_index].overlapped->InternalHigh <= 0) {
ResetEvent(poll_fd[_index].overlapped->hEvent);
poll_fd[_index].overlapped->Internal = STATUS_PENDING;
}
r = sizeof(unsigned char);
out:
LeaveCriticalSection(&_poll_fd[_index].mutex);
return r;
}

131
vendor/github.com/karalabe/hid/libusb/libusb/os/poll_windows.h generated vendored Normal file
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/*
* Windows compat: POSIX compatibility wrapper
* Copyright © 2012-2013 RealVNC Ltd.
* Copyright © 2009-2010 Pete Batard <pete@akeo.ie>
* With contributions from Michael Plante, Orin Eman et al.
* Parts of poll implementation from libusb-win32, by Stephan Meyer et al.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*
*/
#pragma once
#if defined(_MSC_VER)
// disable /W4 MSVC warnings that are benign
#pragma warning(disable:4127) // conditional expression is constant
#endif
// Handle synchronous completion through the overlapped structure
#if !defined(STATUS_REPARSE) // reuse the REPARSE status code
#define STATUS_REPARSE ((LONG)0x00000104L)
#endif
#define STATUS_COMPLETED_SYNCHRONOUSLY STATUS_REPARSE
#if defined(_WIN32_WCE)
// WinCE doesn't have a HasOverlappedIoCompleted() macro, so attempt to emulate it
#define HasOverlappedIoCompleted(lpOverlapped) (((DWORD)(lpOverlapped)->Internal) != STATUS_PENDING)
#endif
#define HasOverlappedIoCompletedSync(lpOverlapped) (((DWORD)(lpOverlapped)->Internal) == STATUS_COMPLETED_SYNCHRONOUSLY)
#define DUMMY_HANDLE ((HANDLE)(LONG_PTR)-2)
/* Windows versions */
enum windows_version {
WINDOWS_CE = -2,
WINDOWS_UNDEFINED = -1,
WINDOWS_UNSUPPORTED = 0,
WINDOWS_XP = 0x51,
WINDOWS_2003 = 0x52, // Also XP x64
WINDOWS_VISTA = 0x60,
WINDOWS_7 = 0x61,
WINDOWS_8 = 0x62,
WINDOWS_8_1_OR_LATER = 0x63,
WINDOWS_MAX
};
extern int windows_version;
#define MAX_FDS 256
#define POLLIN 0x0001 /* There is data to read */
#define POLLPRI 0x0002 /* There is urgent data to read */
#define POLLOUT 0x0004 /* Writing now will not block */
#define POLLERR 0x0008 /* Error condition */
#define POLLHUP 0x0010 /* Hung up */
#define POLLNVAL 0x0020 /* Invalid request: fd not open */
struct pollfd {
int fd; /* file descriptor */
short events; /* requested events */
short revents; /* returned events */
};
// access modes
enum rw_type {
RW_NONE,
RW_READ,
RW_WRITE,
};
// fd struct that can be used for polling on Windows
typedef int cancel_transfer(struct usbi_transfer *itransfer);
struct winfd {
int fd; // what's exposed to libusb core
HANDLE handle; // what we need to attach overlapped to the I/O op, so we can poll it
OVERLAPPED* overlapped; // what will report our I/O status
struct usbi_transfer *itransfer; // Associated transfer, or NULL if completed
cancel_transfer *cancel_fn; // Function pointer to cancel transfer API
enum rw_type rw; // I/O transfer direction: read *XOR* write (NOT BOTH)
};
extern const struct winfd INVALID_WINFD;
int usbi_pipe(int pipefd[2]);
int usbi_poll(struct pollfd *fds, unsigned int nfds, int timeout);
ssize_t usbi_write(int fd, const void *buf, size_t count);
ssize_t usbi_read(int fd, void *buf, size_t count);
int usbi_close(int fd);
void init_polling(void);
void exit_polling(void);
struct winfd usbi_create_fd(HANDLE handle, int access_mode,
struct usbi_transfer *transfer, cancel_transfer *cancel_fn);
void usbi_free_fd(struct winfd* winfd);
struct winfd fd_to_winfd(int fd);
struct winfd handle_to_winfd(HANDLE handle);
struct winfd overlapped_to_winfd(OVERLAPPED* overlapped);
/*
* Timeval operations
*/
#if defined(DDKBUILD)
#include <winsock.h> // defines timeval functions on DDK
#endif
#if !defined(TIMESPEC_TO_TIMEVAL)
#define TIMESPEC_TO_TIMEVAL(tv, ts) { \
(tv)->tv_sec = (long)(ts)->tv_sec; \
(tv)->tv_usec = (long)(ts)->tv_nsec / 1000; \
}
#endif
#if !defined(timersub)
#define timersub(a, b, result) \
do { \
(result)->tv_sec = (a)->tv_sec - (b)->tv_sec; \
(result)->tv_usec = (a)->tv_usec - (b)->tv_usec; \
if ((result)->tv_usec < 0) { \
--(result)->tv_sec; \
(result)->tv_usec += 1000000; \
} \
} while (0)
#endif

1292
vendor/github.com/karalabe/hid/libusb/libusb/os/sunos_usb.c generated vendored Normal file
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74
vendor/github.com/karalabe/hid/libusb/libusb/os/sunos_usb.h generated vendored Normal file
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/*
*
* Copyright (c) 2016, Oracle and/or its affiliates.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#ifndef LIBUSB_SUNOS_H
#define LIBUSB_SUNOS_H
#include <libdevinfo.h>
#include <pthread.h>
#include "libusbi.h"
#define READ 0
#define WRITE 1
typedef struct sunos_device_priv {
uint8_t cfgvalue; /* active config value */
uint8_t *raw_cfgdescr; /* active config descriptor */
struct libusb_device_descriptor dev_descr; /* usb device descriptor */
char *ugenpath; /* name of the ugen(4) node */
char *phypath; /* physical path */
} sunos_dev_priv_t;
typedef struct endpoint {
int datafd; /* data file */
int statfd; /* state file */
} sunos_ep_priv_t;
typedef struct sunos_device_handle_priv {
uint8_t altsetting[USB_MAXINTERFACES]; /* a interface's alt */
uint8_t config_index;
sunos_ep_priv_t eps[USB_MAXENDPOINTS];
sunos_dev_priv_t *dpriv; /* device private */
} sunos_dev_handle_priv_t;
typedef struct sunos_transfer_priv {
struct aiocb aiocb;
struct libusb_transfer *transfer;
} sunos_xfer_priv_t;
struct node_args {
struct libusb_context *ctx;
struct discovered_devs **discdevs;
const char *last_ugenpath;
di_devlink_handle_t dlink_hdl;
};
struct devlink_cbarg {
struct node_args *nargs; /* di node walk arguments */
di_node_t myself; /* the di node */
di_minor_t minor;
};
/* AIO callback args */
struct aio_callback_args{
struct libusb_transfer *transfer;
struct aiocb aiocb;
};
#endif /* LIBUSB_SUNOS_H */

79
vendor/github.com/karalabe/hid/libusb/libusb/os/threads_posix.c generated vendored Normal file
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/*
* libusb synchronization using POSIX Threads
*
* Copyright © 2011 Vitali Lovich <vlovich@aliph.com>
* Copyright © 2011 Peter Stuge <peter@stuge.se>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#include <config.h>
#include <time.h>
#if defined(__linux__) || defined(__OpenBSD__)
# if defined(__OpenBSD__)
# define _BSD_SOURCE
# endif
# include <unistd.h>
# include <sys/syscall.h>
#elif defined(__APPLE__)
# include <mach/mach.h>
#elif defined(__CYGWIN__)
# include <windows.h>
#endif
#include "threads_posix.h"
#include "libusbi.h"
int usbi_cond_timedwait(pthread_cond_t *cond,
pthread_mutex_t *mutex, const struct timeval *tv)
{
struct timespec timeout;
int r;
r = usbi_backend->clock_gettime(USBI_CLOCK_REALTIME, &timeout);
if (r < 0)
return r;
timeout.tv_sec += tv->tv_sec;
timeout.tv_nsec += tv->tv_usec * 1000;
while (timeout.tv_nsec >= 1000000000L) {
timeout.tv_nsec -= 1000000000L;
timeout.tv_sec++;
}
return pthread_cond_timedwait(cond, mutex, &timeout);
}
int usbi_get_tid(void)
{
int ret = -1;
#if defined(__ANDROID__)
ret = gettid();
#elif defined(__linux__)
ret = syscall(SYS_gettid);
#elif defined(__OpenBSD__)
/* The following only works with OpenBSD > 5.1 as it requires
real thread support. For 5.1 and earlier, -1 is returned. */
ret = syscall(SYS_getthrid);
#elif defined(__APPLE__)
ret = mach_thread_self();
mach_port_deallocate(mach_task_self(), ret);
#elif defined(__CYGWIN__)
ret = GetCurrentThreadId();
#endif
/* TODO: NetBSD thread ID support */
return ret;
}

55
vendor/github.com/karalabe/hid/libusb/libusb/os/threads_posix.h generated vendored Normal file
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/*
* libusb synchronization using POSIX Threads
*
* Copyright © 2010 Peter Stuge <peter@stuge.se>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#ifndef LIBUSB_THREADS_POSIX_H
#define LIBUSB_THREADS_POSIX_H
#include <pthread.h>
#ifdef HAVE_SYS_TIME_H
#include <sys/time.h>
#endif
#define usbi_mutex_static_t pthread_mutex_t
#define USBI_MUTEX_INITIALIZER PTHREAD_MUTEX_INITIALIZER
#define usbi_mutex_static_lock pthread_mutex_lock
#define usbi_mutex_static_unlock pthread_mutex_unlock
#define usbi_mutex_t pthread_mutex_t
#define usbi_mutex_init(mutex) pthread_mutex_init((mutex), NULL)
#define usbi_mutex_lock pthread_mutex_lock
#define usbi_mutex_unlock pthread_mutex_unlock
#define usbi_mutex_trylock pthread_mutex_trylock
#define usbi_mutex_destroy pthread_mutex_destroy
#define usbi_cond_t pthread_cond_t
#define usbi_cond_init(cond) pthread_cond_init((cond), NULL)
#define usbi_cond_wait pthread_cond_wait
#define usbi_cond_broadcast pthread_cond_broadcast
#define usbi_cond_destroy pthread_cond_destroy
#define usbi_tls_key_t pthread_key_t
#define usbi_tls_key_create(key) pthread_key_create((key), NULL)
#define usbi_tls_key_get pthread_getspecific
#define usbi_tls_key_set pthread_setspecific
#define usbi_tls_key_delete pthread_key_delete
int usbi_get_tid(void);
#endif /* LIBUSB_THREADS_POSIX_H */

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vendor/github.com/karalabe/hid/libusb/libusb/os/threads_windows.c generated vendored Normal file
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/*
* libusb synchronization on Microsoft Windows
*
* Copyright © 2010 Michael Plante <michael.plante@gmail.com>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#include <config.h>
#include <objbase.h>
#include <errno.h>
#include "libusbi.h"
struct usbi_cond_perthread {
struct list_head list;
DWORD tid;
HANDLE event;
};
int usbi_mutex_static_lock(usbi_mutex_static_t *mutex)
{
if (!mutex)
return EINVAL;
while (InterlockedExchange(mutex, 1) == 1)
SleepEx(0, TRUE);
return 0;
}
int usbi_mutex_static_unlock(usbi_mutex_static_t *mutex)
{
if (!mutex)
return EINVAL;
InterlockedExchange(mutex, 0);
return 0;
}
int usbi_mutex_init(usbi_mutex_t *mutex)
{
if (!mutex)
return EINVAL;
*mutex = CreateMutex(NULL, FALSE, NULL);
if (!*mutex)
return ENOMEM;
return 0;
}
int usbi_mutex_lock(usbi_mutex_t *mutex)
{
DWORD result;
if (!mutex)
return EINVAL;
result = WaitForSingleObject(*mutex, INFINITE);
if (result == WAIT_OBJECT_0 || result == WAIT_ABANDONED)
return 0; // acquired (ToDo: check that abandoned is ok)
else
return EINVAL; // don't know how this would happen
// so don't know proper errno
}
int usbi_mutex_unlock(usbi_mutex_t *mutex)
{
if (!mutex)
return EINVAL;
if (ReleaseMutex(*mutex))
return 0;
else
return EPERM;
}
int usbi_mutex_trylock(usbi_mutex_t *mutex)
{
DWORD result;
if (!mutex)
return EINVAL;
result = WaitForSingleObject(*mutex, 0);
if (result == WAIT_OBJECT_0 || result == WAIT_ABANDONED)
return 0; // acquired (ToDo: check that abandoned is ok)
else if (result == WAIT_TIMEOUT)
return EBUSY;
else
return EINVAL; // don't know how this would happen
// so don't know proper error
}
int usbi_mutex_destroy(usbi_mutex_t *mutex)
{
// It is not clear if CloseHandle failure is due to failure to unlock.
// If so, this should be errno=EBUSY.
if (!mutex || !CloseHandle(*mutex))
return EINVAL;
*mutex = NULL;
return 0;
}
int usbi_cond_init(usbi_cond_t *cond)
{
if (!cond)
return EINVAL;
list_init(&cond->waiters);
list_init(&cond->not_waiting);
return 0;
}
int usbi_cond_destroy(usbi_cond_t *cond)
{
// This assumes no one is using this anymore. The check MAY NOT BE safe.
struct usbi_cond_perthread *pos, *next_pos;
if(!cond)
return EINVAL;
if (!list_empty(&cond->waiters))
return EBUSY; // (!see above!)
list_for_each_entry_safe(pos, next_pos, &cond->not_waiting, list, struct usbi_cond_perthread) {
CloseHandle(pos->event);
list_del(&pos->list);
free(pos);
}
return 0;
}
int usbi_cond_broadcast(usbi_cond_t *cond)
{
// Assumes mutex is locked; this is not in keeping with POSIX spec, but
// libusb does this anyway, so we simplify by not adding more sync
// primitives to the CV definition!
int fail = 0;
struct usbi_cond_perthread *pos;
if (!cond)
return EINVAL;
list_for_each_entry(pos, &cond->waiters, list, struct usbi_cond_perthread) {
if (!SetEvent(pos->event))
fail = 1;
}
// The wait function will remove its respective item from the list.
return fail ? EINVAL : 0;
}
__inline static int usbi_cond_intwait(usbi_cond_t *cond,
usbi_mutex_t *mutex, DWORD timeout_ms)
{
struct usbi_cond_perthread *pos;
int r, found = 0;
DWORD r2, tid = GetCurrentThreadId();
if (!cond || !mutex)
return EINVAL;
list_for_each_entry(pos, &cond->not_waiting, list, struct usbi_cond_perthread) {
if(tid == pos->tid) {
found = 1;
break;
}
}
if (!found) {
pos = calloc(1, sizeof(struct usbi_cond_perthread));
if (!pos)
return ENOMEM; // This errno is not POSIX-allowed.
pos->tid = tid;
pos->event = CreateEvent(NULL, FALSE, FALSE, NULL); // auto-reset.
if (!pos->event) {
free(pos);
return ENOMEM;
}
list_add(&pos->list, &cond->not_waiting);
}
list_del(&pos->list); // remove from not_waiting list.
list_add(&pos->list, &cond->waiters);
r = usbi_mutex_unlock(mutex);
if (r)
return r;
r2 = WaitForSingleObject(pos->event, timeout_ms);
r = usbi_mutex_lock(mutex);
if (r)
return r;
list_del(&pos->list);
list_add(&pos->list, &cond->not_waiting);
if (r2 == WAIT_OBJECT_0)
return 0;
else if (r2 == WAIT_TIMEOUT)
return ETIMEDOUT;
else
return EINVAL;
}
// N.B.: usbi_cond_*wait() can also return ENOMEM, even though pthread_cond_*wait cannot!
int usbi_cond_wait(usbi_cond_t *cond, usbi_mutex_t *mutex)
{
return usbi_cond_intwait(cond, mutex, INFINITE);
}
int usbi_cond_timedwait(usbi_cond_t *cond,
usbi_mutex_t *mutex, const struct timeval *tv)
{
DWORD millis;
millis = (DWORD)(tv->tv_sec * 1000) + (tv->tv_usec / 1000);
/* round up to next millisecond */
if (tv->tv_usec % 1000)
millis++;
return usbi_cond_intwait(cond, mutex, millis);
}
int usbi_tls_key_create(usbi_tls_key_t *key)
{
if (!key)
return EINVAL;
*key = TlsAlloc();
if (*key == TLS_OUT_OF_INDEXES)
return ENOMEM;
else
return 0;
}
void *usbi_tls_key_get(usbi_tls_key_t key)
{
return TlsGetValue(key);
}
int usbi_tls_key_set(usbi_tls_key_t key, void *value)
{
if (TlsSetValue(key, value))
return 0;
else
return EINVAL;
}
int usbi_tls_key_delete(usbi_tls_key_t key)
{
if (TlsFree(key))
return 0;
else
return EINVAL;
}
int usbi_get_tid(void)
{
return (int)GetCurrentThreadId();
}

76
vendor/github.com/karalabe/hid/libusb/libusb/os/threads_windows.h generated vendored Normal file
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/*
* libusb synchronization on Microsoft Windows
*
* Copyright © 2010 Michael Plante <michael.plante@gmail.com>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#ifndef LIBUSB_THREADS_WINDOWS_H
#define LIBUSB_THREADS_WINDOWS_H
#define usbi_mutex_static_t volatile LONG
#define USBI_MUTEX_INITIALIZER 0
#define usbi_mutex_t HANDLE
typedef struct usbi_cond {
// Every time a thread touches the CV, it winds up in one of these lists.
// It stays there until the CV is destroyed, even if the thread terminates.
struct list_head waiters;
struct list_head not_waiting;
} usbi_cond_t;
// We *were* getting timespec from pthread.h:
#if (!defined(HAVE_STRUCT_TIMESPEC) && !defined(_TIMESPEC_DEFINED))
#define HAVE_STRUCT_TIMESPEC 1
#define _TIMESPEC_DEFINED 1
struct timespec {
long tv_sec;
long tv_nsec;
};
#endif /* HAVE_STRUCT_TIMESPEC | _TIMESPEC_DEFINED */
// We *were* getting ETIMEDOUT from pthread.h:
#ifndef ETIMEDOUT
# define ETIMEDOUT 10060 /* This is the value in winsock.h. */
#endif
#define usbi_tls_key_t DWORD
int usbi_mutex_static_lock(usbi_mutex_static_t *mutex);
int usbi_mutex_static_unlock(usbi_mutex_static_t *mutex);
int usbi_mutex_init(usbi_mutex_t *mutex);
int usbi_mutex_lock(usbi_mutex_t *mutex);
int usbi_mutex_unlock(usbi_mutex_t *mutex);
int usbi_mutex_trylock(usbi_mutex_t *mutex);
int usbi_mutex_destroy(usbi_mutex_t *mutex);
int usbi_cond_init(usbi_cond_t *cond);
int usbi_cond_wait(usbi_cond_t *cond, usbi_mutex_t *mutex);
int usbi_cond_timedwait(usbi_cond_t *cond,
usbi_mutex_t *mutex, const struct timeval *tv);
int usbi_cond_broadcast(usbi_cond_t *cond);
int usbi_cond_destroy(usbi_cond_t *cond);
int usbi_tls_key_create(usbi_tls_key_t *key);
void *usbi_tls_key_get(usbi_tls_key_t key);
int usbi_tls_key_set(usbi_tls_key_t key, void *value);
int usbi_tls_key_delete(usbi_tls_key_t key);
int usbi_get_tid(void);
#endif /* LIBUSB_THREADS_WINDOWS_H */

899
vendor/github.com/karalabe/hid/libusb/libusb/os/wince_usb.c generated vendored Normal file
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/*
* Windows CE backend for libusb 1.0
* Copyright © 2011-2013 RealVNC Ltd.
* Large portions taken from Windows backend, which is
* Copyright © 2009-2010 Pete Batard <pbatard@gmail.com>
* With contributions from Michael Plante, Orin Eman et al.
* Parts of this code adapted from libusb-win32-v1 by Stephan Meyer
* Major code testing contribution by Xiaofan Chen
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#include <config.h>
#include <stdint.h>
#include <inttypes.h>
#include "libusbi.h"
#include "wince_usb.h"
// Global variables
int windows_version = WINDOWS_CE;
static uint64_t hires_frequency, hires_ticks_to_ps;
static HANDLE driver_handle = INVALID_HANDLE_VALUE;
static int concurrent_usage = -1;
/*
* Converts a windows error to human readable string
* uses retval as errorcode, or, if 0, use GetLastError()
*/
#if defined(ENABLE_LOGGING)
static const char *windows_error_str(DWORD error_code)
{
static TCHAR wErr_string[ERR_BUFFER_SIZE];
static char err_string[ERR_BUFFER_SIZE];
DWORD size;
int len;
if (error_code == 0)
error_code = GetLastError();
len = sprintf(err_string, "[%u] ", (unsigned int)error_code);
size = FormatMessage(FORMAT_MESSAGE_FROM_SYSTEM|FORMAT_MESSAGE_IGNORE_INSERTS,
NULL, error_code, MAKELANGID(LANG_NEUTRAL, SUBLANG_DEFAULT),
wErr_string, ERR_BUFFER_SIZE, NULL);
if (size == 0) {
DWORD format_error = GetLastError();
if (format_error)
snprintf(err_string, ERR_BUFFER_SIZE,
"Windows error code %u (FormatMessage error code %u)",
(unsigned int)error_code, (unsigned int)format_error);
else
snprintf(err_string, ERR_BUFFER_SIZE, "Unknown error code %u", (unsigned int)error_code);
} else {
// Remove CR/LF terminators, if present
size_t pos = size - 2;
if (wErr_string[pos] == 0x0D)
wErr_string[pos] = 0;
if (!WideCharToMultiByte(CP_ACP, 0, wErr_string, -1, &err_string[len], ERR_BUFFER_SIZE - len, NULL, NULL))
strcpy(err_string, "Unable to convert error string");
}
return err_string;
}
#endif
static struct wince_device_priv *_device_priv(struct libusb_device *dev)
{
return (struct wince_device_priv *)dev->os_priv;
}
// ceusbkwrapper to libusb error code mapping
static int translate_driver_error(DWORD error)
{
switch (error) {
case ERROR_INVALID_PARAMETER:
return LIBUSB_ERROR_INVALID_PARAM;
case ERROR_CALL_NOT_IMPLEMENTED:
case ERROR_NOT_SUPPORTED:
return LIBUSB_ERROR_NOT_SUPPORTED;
case ERROR_NOT_ENOUGH_MEMORY:
return LIBUSB_ERROR_NO_MEM;
case ERROR_INVALID_HANDLE:
return LIBUSB_ERROR_NO_DEVICE;
case ERROR_BUSY:
return LIBUSB_ERROR_BUSY;
// Error codes that are either unexpected, or have
// no suitable LIBUSB_ERROR equivalent.
case ERROR_CANCELLED:
case ERROR_INTERNAL_ERROR:
default:
return LIBUSB_ERROR_OTHER;
}
}
static int init_dllimports(void)
{
DLL_GET_HANDLE(ceusbkwrapper);
DLL_LOAD_FUNC(ceusbkwrapper, UkwOpenDriver, TRUE);
DLL_LOAD_FUNC(ceusbkwrapper, UkwGetDeviceList, TRUE);
DLL_LOAD_FUNC(ceusbkwrapper, UkwReleaseDeviceList, TRUE);
DLL_LOAD_FUNC(ceusbkwrapper, UkwGetDeviceAddress, TRUE);
DLL_LOAD_FUNC(ceusbkwrapper, UkwGetDeviceDescriptor, TRUE);
DLL_LOAD_FUNC(ceusbkwrapper, UkwGetConfigDescriptor, TRUE);
DLL_LOAD_FUNC(ceusbkwrapper, UkwCloseDriver, TRUE);
DLL_LOAD_FUNC(ceusbkwrapper, UkwCancelTransfer, TRUE);
DLL_LOAD_FUNC(ceusbkwrapper, UkwIssueControlTransfer, TRUE);
DLL_LOAD_FUNC(ceusbkwrapper, UkwClaimInterface, TRUE);
DLL_LOAD_FUNC(ceusbkwrapper, UkwReleaseInterface, TRUE);
DLL_LOAD_FUNC(ceusbkwrapper, UkwSetInterfaceAlternateSetting, TRUE);
DLL_LOAD_FUNC(ceusbkwrapper, UkwClearHaltHost, TRUE);
DLL_LOAD_FUNC(ceusbkwrapper, UkwClearHaltDevice, TRUE);
DLL_LOAD_FUNC(ceusbkwrapper, UkwGetConfig, TRUE);
DLL_LOAD_FUNC(ceusbkwrapper, UkwSetConfig, TRUE);
DLL_LOAD_FUNC(ceusbkwrapper, UkwResetDevice, TRUE);
DLL_LOAD_FUNC(ceusbkwrapper, UkwKernelDriverActive, TRUE);
DLL_LOAD_FUNC(ceusbkwrapper, UkwAttachKernelDriver, TRUE);
DLL_LOAD_FUNC(ceusbkwrapper, UkwDetachKernelDriver, TRUE);
DLL_LOAD_FUNC(ceusbkwrapper, UkwIssueBulkTransfer, TRUE);
DLL_LOAD_FUNC(ceusbkwrapper, UkwIsPipeHalted, TRUE);
return LIBUSB_SUCCESS;
}
static void exit_dllimports(void)
{
DLL_FREE_HANDLE(ceusbkwrapper);
}
static int init_device(
struct libusb_device *dev, UKW_DEVICE drv_dev,
unsigned char bus_addr, unsigned char dev_addr)
{
struct wince_device_priv *priv = _device_priv(dev);
int r = LIBUSB_SUCCESS;
dev->bus_number = bus_addr;
dev->device_address = dev_addr;
priv->dev = drv_dev;
if (!UkwGetDeviceDescriptor(priv->dev, &(priv->desc)))
r = translate_driver_error(GetLastError());
return r;
}
// Internal API functions
static int wince_init(struct libusb_context *ctx)
{
int r = LIBUSB_ERROR_OTHER;
HANDLE semaphore;
LARGE_INTEGER li_frequency;
TCHAR sem_name[11 + 8 + 1]; // strlen("libusb_init") + (32-bit hex PID) + '\0'
_stprintf(sem_name, _T("libusb_init%08X"), (unsigned int)(GetCurrentProcessId() & 0xFFFFFFFF));
semaphore = CreateSemaphore(NULL, 1, 1, sem_name);
if (semaphore == NULL) {
usbi_err(ctx, "could not create semaphore: %s", windows_error_str(0));
return LIBUSB_ERROR_NO_MEM;
}
// A successful wait brings our semaphore count to 0 (unsignaled)
// => any concurent wait stalls until the semaphore's release
if (WaitForSingleObject(semaphore, INFINITE) != WAIT_OBJECT_0) {
usbi_err(ctx, "failure to access semaphore: %s", windows_error_str(0));
CloseHandle(semaphore);
return LIBUSB_ERROR_NO_MEM;
}
// NB: concurrent usage supposes that init calls are equally balanced with
// exit calls. If init is called more than exit, we will not exit properly
if ( ++concurrent_usage == 0 ) { // First init?
// Initialize pollable file descriptors
init_polling();
// Load DLL imports
if (init_dllimports() != LIBUSB_SUCCESS) {
usbi_err(ctx, "could not resolve DLL functions");
r = LIBUSB_ERROR_NOT_SUPPORTED;
goto init_exit;
}
// try to open a handle to the driver
driver_handle = UkwOpenDriver();
if (driver_handle == INVALID_HANDLE_VALUE) {
usbi_err(ctx, "could not connect to driver");
r = LIBUSB_ERROR_NOT_SUPPORTED;
goto init_exit;
}
// find out if we have access to a monotonic (hires) timer
if (QueryPerformanceFrequency(&li_frequency)) {
hires_frequency = li_frequency.QuadPart;
// The hires frequency can go as high as 4 GHz, so we'll use a conversion
// to picoseconds to compute the tv_nsecs part in clock_gettime
hires_ticks_to_ps = UINT64_C(1000000000000) / hires_frequency;
usbi_dbg("hires timer available (Frequency: %"PRIu64" Hz)", hires_frequency);
} else {
usbi_dbg("no hires timer available on this platform");
hires_frequency = 0;
hires_ticks_to_ps = UINT64_C(0);
}
}
// At this stage, either we went through full init successfully, or didn't need to
r = LIBUSB_SUCCESS;
init_exit: // Holds semaphore here.
if (!concurrent_usage && r != LIBUSB_SUCCESS) { // First init failed?
exit_dllimports();
exit_polling();
if (driver_handle != INVALID_HANDLE_VALUE) {
UkwCloseDriver(driver_handle);
driver_handle = INVALID_HANDLE_VALUE;
}
}
if (r != LIBUSB_SUCCESS)
--concurrent_usage; // Not expected to call libusb_exit if we failed.
ReleaseSemaphore(semaphore, 1, NULL); // increase count back to 1
CloseHandle(semaphore);
return r;
}
static void wince_exit(void)
{
HANDLE semaphore;
TCHAR sem_name[11 + 8 + 1]; // strlen("libusb_init") + (32-bit hex PID) + '\0'
_stprintf(sem_name, _T("libusb_init%08X"), (unsigned int)(GetCurrentProcessId() & 0xFFFFFFFF));
semaphore = CreateSemaphore(NULL, 1, 1, sem_name);
if (semaphore == NULL)
return;
// A successful wait brings our semaphore count to 0 (unsignaled)
// => any concurent wait stalls until the semaphore release
if (WaitForSingleObject(semaphore, INFINITE) != WAIT_OBJECT_0) {
CloseHandle(semaphore);
return;
}
// Only works if exits and inits are balanced exactly
if (--concurrent_usage < 0) { // Last exit
exit_dllimports();
exit_polling();
if (driver_handle != INVALID_HANDLE_VALUE) {
UkwCloseDriver(driver_handle);
driver_handle = INVALID_HANDLE_VALUE;
}
}
ReleaseSemaphore(semaphore, 1, NULL); // increase count back to 1
CloseHandle(semaphore);
}
static int wince_get_device_list(
struct libusb_context *ctx,
struct discovered_devs **discdevs)
{
UKW_DEVICE devices[MAX_DEVICE_COUNT];
struct discovered_devs *new_devices = *discdevs;
DWORD count = 0, i;
struct libusb_device *dev = NULL;
unsigned char bus_addr, dev_addr;
unsigned long session_id;
BOOL success;
DWORD release_list_offset = 0;
int r = LIBUSB_SUCCESS;
success = UkwGetDeviceList(driver_handle, devices, MAX_DEVICE_COUNT, &count);
if (!success) {
int libusbErr = translate_driver_error(GetLastError());
usbi_err(ctx, "could not get devices: %s", windows_error_str(0));
return libusbErr;
}
for (i = 0; i < count; ++i) {
release_list_offset = i;
success = UkwGetDeviceAddress(devices[i], &bus_addr, &dev_addr, &session_id);
if (!success) {
r = translate_driver_error(GetLastError());
usbi_err(ctx, "could not get device address for %u: %s", (unsigned int)i, windows_error_str(0));
goto err_out;
}
dev = usbi_get_device_by_session_id(ctx, session_id);
if (dev) {
usbi_dbg("using existing device for %u/%u (session %lu)",
bus_addr, dev_addr, session_id);
// Release just this element in the device list (as we already hold a
// reference to it).
UkwReleaseDeviceList(driver_handle, &devices[i], 1);
release_list_offset++;
} else {
usbi_dbg("allocating new device for %u/%u (session %lu)",
bus_addr, dev_addr, session_id);
dev = usbi_alloc_device(ctx, session_id);
if (!dev) {
r = LIBUSB_ERROR_NO_MEM;
goto err_out;
}
r = init_device(dev, devices[i], bus_addr, dev_addr);
if (r < 0)
goto err_out;
r = usbi_sanitize_device(dev);
if (r < 0)
goto err_out;
}
new_devices = discovered_devs_append(new_devices, dev);
if (!discdevs) {
r = LIBUSB_ERROR_NO_MEM;
goto err_out;
}
libusb_unref_device(dev);
}
*discdevs = new_devices;
return r;
err_out:
*discdevs = new_devices;
libusb_unref_device(dev);
// Release the remainder of the unprocessed device list.
// The devices added to new_devices already will still be passed up to libusb,
// which can dispose of them at its leisure.
UkwReleaseDeviceList(driver_handle, &devices[release_list_offset], count - release_list_offset);
return r;
}
static int wince_open(struct libusb_device_handle *handle)
{
// Nothing to do to open devices as a handle to it has
// been retrieved by wince_get_device_list
return LIBUSB_SUCCESS;
}
static void wince_close(struct libusb_device_handle *handle)
{
// Nothing to do as wince_open does nothing.
}
static int wince_get_device_descriptor(
struct libusb_device *device,
unsigned char *buffer, int *host_endian)
{
struct wince_device_priv *priv = _device_priv(device);
*host_endian = 1;
memcpy(buffer, &priv->desc, DEVICE_DESC_LENGTH);
return LIBUSB_SUCCESS;
}
static int wince_get_active_config_descriptor(
struct libusb_device *device,
unsigned char *buffer, size_t len, int *host_endian)
{
struct wince_device_priv *priv = _device_priv(device);
DWORD actualSize = len;
*host_endian = 0;
if (!UkwGetConfigDescriptor(priv->dev, UKW_ACTIVE_CONFIGURATION, buffer, len, &actualSize))
return translate_driver_error(GetLastError());
return actualSize;
}
static int wince_get_config_descriptor(
struct libusb_device *device,
uint8_t config_index,
unsigned char *buffer, size_t len, int *host_endian)
{
struct wince_device_priv *priv = _device_priv(device);
DWORD actualSize = len;
*host_endian = 0;
if (!UkwGetConfigDescriptor(priv->dev, config_index, buffer, len, &actualSize))
return translate_driver_error(GetLastError());
return actualSize;
}
static int wince_get_configuration(
struct libusb_device_handle *handle,
int *config)
{
struct wince_device_priv *priv = _device_priv(handle->dev);
UCHAR cv = 0;
if (!UkwGetConfig(priv->dev, &cv))
return translate_driver_error(GetLastError());
(*config) = cv;
return LIBUSB_SUCCESS;
}
static int wince_set_configuration(
struct libusb_device_handle *handle,
int config)
{
struct wince_device_priv *priv = _device_priv(handle->dev);
// Setting configuration 0 places the device in Address state.
// This should correspond to the "unconfigured state" required by
// libusb when the specified configuration is -1.
UCHAR cv = (config < 0) ? 0 : config;
if (!UkwSetConfig(priv->dev, cv))
return translate_driver_error(GetLastError());
return LIBUSB_SUCCESS;
}
static int wince_claim_interface(
struct libusb_device_handle *handle,
int interface_number)
{
struct wince_device_priv *priv = _device_priv(handle->dev);
if (!UkwClaimInterface(priv->dev, interface_number))
return translate_driver_error(GetLastError());
return LIBUSB_SUCCESS;
}
static int wince_release_interface(
struct libusb_device_handle *handle,
int interface_number)
{
struct wince_device_priv *priv = _device_priv(handle->dev);
if (!UkwSetInterfaceAlternateSetting(priv->dev, interface_number, 0))
return translate_driver_error(GetLastError());
if (!UkwReleaseInterface(priv->dev, interface_number))
return translate_driver_error(GetLastError());
return LIBUSB_SUCCESS;
}
static int wince_set_interface_altsetting(
struct libusb_device_handle *handle,
int interface_number, int altsetting)
{
struct wince_device_priv *priv = _device_priv(handle->dev);
if (!UkwSetInterfaceAlternateSetting(priv->dev, interface_number, altsetting))
return translate_driver_error(GetLastError());
return LIBUSB_SUCCESS;
}
static int wince_clear_halt(
struct libusb_device_handle *handle,
unsigned char endpoint)
{
struct wince_device_priv *priv = _device_priv(handle->dev);
if (!UkwClearHaltHost(priv->dev, endpoint))
return translate_driver_error(GetLastError());
if (!UkwClearHaltDevice(priv->dev, endpoint))
return translate_driver_error(GetLastError());
return LIBUSB_SUCCESS;
}
static int wince_reset_device(
struct libusb_device_handle *handle)
{
struct wince_device_priv *priv = _device_priv(handle->dev);
if (!UkwResetDevice(priv->dev))
return translate_driver_error(GetLastError());
return LIBUSB_SUCCESS;
}
static int wince_kernel_driver_active(
struct libusb_device_handle *handle,
int interface_number)
{
struct wince_device_priv *priv = _device_priv(handle->dev);
BOOL result = FALSE;
if (!UkwKernelDriverActive(priv->dev, interface_number, &result))
return translate_driver_error(GetLastError());
return result ? 1 : 0;
}
static int wince_detach_kernel_driver(
struct libusb_device_handle *handle,
int interface_number)
{
struct wince_device_priv *priv = _device_priv(handle->dev);
if (!UkwDetachKernelDriver(priv->dev, interface_number))
return translate_driver_error(GetLastError());
return LIBUSB_SUCCESS;
}
static int wince_attach_kernel_driver(
struct libusb_device_handle *handle,
int interface_number)
{
struct wince_device_priv *priv = _device_priv(handle->dev);
if (!UkwAttachKernelDriver(priv->dev, interface_number))
return translate_driver_error(GetLastError());
return LIBUSB_SUCCESS;
}
static void wince_destroy_device(struct libusb_device *dev)
{
struct wince_device_priv *priv = _device_priv(dev);
UkwReleaseDeviceList(driver_handle, &priv->dev, 1);
}
static void wince_clear_transfer_priv(struct usbi_transfer *itransfer)
{
struct wince_transfer_priv *transfer_priv = usbi_transfer_get_os_priv(itransfer);
struct winfd wfd = fd_to_winfd(transfer_priv->pollable_fd.fd);
// No need to cancel transfer as it is either complete or abandoned
wfd.itransfer = NULL;
CloseHandle(wfd.handle);
usbi_free_fd(&transfer_priv->pollable_fd);
}
static int wince_cancel_transfer(struct usbi_transfer *itransfer)
{
struct libusb_transfer *transfer = USBI_TRANSFER_TO_LIBUSB_TRANSFER(itransfer);
struct wince_device_priv *priv = _device_priv(transfer->dev_handle->dev);
struct wince_transfer_priv *transfer_priv = usbi_transfer_get_os_priv(itransfer);
if (!UkwCancelTransfer(priv->dev, transfer_priv->pollable_fd.overlapped, UKW_TF_NO_WAIT))
return translate_driver_error(GetLastError());
return LIBUSB_SUCCESS;
}
static int wince_submit_control_or_bulk_transfer(struct usbi_transfer *itransfer)
{
struct libusb_transfer *transfer = USBI_TRANSFER_TO_LIBUSB_TRANSFER(itransfer);
struct libusb_context *ctx = DEVICE_CTX(transfer->dev_handle->dev);
struct wince_transfer_priv *transfer_priv = usbi_transfer_get_os_priv(itransfer);
struct wince_device_priv *priv = _device_priv(transfer->dev_handle->dev);
BOOL direction_in, ret;
struct winfd wfd;
DWORD flags;
HANDLE eventHandle;
PUKW_CONTROL_HEADER setup = NULL;
const BOOL control_transfer = transfer->type == LIBUSB_TRANSFER_TYPE_CONTROL;
transfer_priv->pollable_fd = INVALID_WINFD;
if (control_transfer) {
setup = (PUKW_CONTROL_HEADER) transfer->buffer;
direction_in = setup->bmRequestType & LIBUSB_ENDPOINT_IN;
} else {
direction_in = transfer->endpoint & LIBUSB_ENDPOINT_IN;
}
flags = direction_in ? UKW_TF_IN_TRANSFER : UKW_TF_OUT_TRANSFER;
flags |= UKW_TF_SHORT_TRANSFER_OK;
eventHandle = CreateEvent(NULL, FALSE, FALSE, NULL);
if (eventHandle == NULL) {
usbi_err(ctx, "Failed to create event for async transfer");
return LIBUSB_ERROR_NO_MEM;
}
wfd = usbi_create_fd(eventHandle, direction_in ? RW_READ : RW_WRITE, itransfer, &wince_cancel_transfer);
if (wfd.fd < 0) {
CloseHandle(eventHandle);
return LIBUSB_ERROR_NO_MEM;
}
transfer_priv->pollable_fd = wfd;
if (control_transfer) {
// Split out control setup header and data buffer
DWORD bufLen = transfer->length - sizeof(UKW_CONTROL_HEADER);
PVOID buf = (PVOID) &transfer->buffer[sizeof(UKW_CONTROL_HEADER)];
ret = UkwIssueControlTransfer(priv->dev, flags, setup, buf, bufLen, &transfer->actual_length, wfd.overlapped);
} else {
ret = UkwIssueBulkTransfer(priv->dev, flags, transfer->endpoint, transfer->buffer,
transfer->length, &transfer->actual_length, wfd.overlapped);
}
if (!ret) {
int libusbErr = translate_driver_error(GetLastError());
usbi_err(ctx, "UkwIssue%sTransfer failed: error %u",
control_transfer ? "Control" : "Bulk", (unsigned int)GetLastError());
wince_clear_transfer_priv(itransfer);
return libusbErr;
}
usbi_add_pollfd(ctx, transfer_priv->pollable_fd.fd, direction_in ? POLLIN : POLLOUT);
return LIBUSB_SUCCESS;
}
static int wince_submit_iso_transfer(struct usbi_transfer *itransfer)
{
return LIBUSB_ERROR_NOT_SUPPORTED;
}
static int wince_submit_transfer(struct usbi_transfer *itransfer)
{
struct libusb_transfer *transfer = USBI_TRANSFER_TO_LIBUSB_TRANSFER(itransfer);
switch (transfer->type) {
case LIBUSB_TRANSFER_TYPE_CONTROL:
case LIBUSB_TRANSFER_TYPE_BULK:
case LIBUSB_TRANSFER_TYPE_INTERRUPT:
return wince_submit_control_or_bulk_transfer(itransfer);
case LIBUSB_TRANSFER_TYPE_ISOCHRONOUS:
return wince_submit_iso_transfer(itransfer);
case LIBUSB_TRANSFER_TYPE_BULK_STREAM:
return LIBUSB_ERROR_NOT_SUPPORTED;
default:
usbi_err(TRANSFER_CTX(transfer), "unknown endpoint type %d", transfer->type);
return LIBUSB_ERROR_INVALID_PARAM;
}
}
static void wince_transfer_callback(
struct usbi_transfer *itransfer,
uint32_t io_result, uint32_t io_size)
{
struct libusb_transfer *transfer = USBI_TRANSFER_TO_LIBUSB_TRANSFER(itransfer);
struct wince_transfer_priv *transfer_priv = (struct wince_transfer_priv*)usbi_transfer_get_os_priv(itransfer);
struct wince_device_priv *priv = _device_priv(transfer->dev_handle->dev);
int status;
usbi_dbg("handling I/O completion with errcode %u", io_result);
if (io_result == ERROR_NOT_SUPPORTED &&
transfer->type != LIBUSB_TRANSFER_TYPE_CONTROL) {
/* For functional stalls, the WinCE USB layer (and therefore the USB Kernel Wrapper
* Driver) will report USB_ERROR_STALL/ERROR_NOT_SUPPORTED in situations where the
* endpoint isn't actually stalled.
*
* One example of this is that some devices will occasionally fail to reply to an IN
* token. The WinCE USB layer carries on with the transaction until it is completed
* (or cancelled) but then completes it with USB_ERROR_STALL.
*
* This code therefore needs to confirm that there really is a stall error, by both
* checking the pipe status and requesting the endpoint status from the device.
*/
BOOL halted = FALSE;
usbi_dbg("checking I/O completion with errcode ERROR_NOT_SUPPORTED is really a stall");
if (UkwIsPipeHalted(priv->dev, transfer->endpoint, &halted)) {
/* Pipe status retrieved, so now request endpoint status by sending a GET_STATUS
* control request to the device. This is done synchronously, which is a bit
* naughty, but this is a special corner case.
*/
WORD wStatus = 0;
DWORD written = 0;
UKW_CONTROL_HEADER ctrlHeader;
ctrlHeader.bmRequestType = LIBUSB_REQUEST_TYPE_STANDARD |
LIBUSB_ENDPOINT_IN | LIBUSB_RECIPIENT_ENDPOINT;
ctrlHeader.bRequest = LIBUSB_REQUEST_GET_STATUS;
ctrlHeader.wValue = 0;
ctrlHeader.wIndex = transfer->endpoint;
ctrlHeader.wLength = sizeof(wStatus);
if (UkwIssueControlTransfer(priv->dev,
UKW_TF_IN_TRANSFER | UKW_TF_SEND_TO_ENDPOINT,
&ctrlHeader, &wStatus, sizeof(wStatus), &written, NULL)) {
if (written == sizeof(wStatus) &&
(wStatus & STATUS_HALT_FLAG) == 0) {
if (!halted || UkwClearHaltHost(priv->dev, transfer->endpoint)) {
usbi_dbg("Endpoint doesn't appear to be stalled, overriding error with success");
io_result = ERROR_SUCCESS;
} else {
usbi_dbg("Endpoint doesn't appear to be stalled, but the host is halted, changing error");
io_result = ERROR_IO_DEVICE;
}
}
}
}
}
switch(io_result) {
case ERROR_SUCCESS:
itransfer->transferred += io_size;
status = LIBUSB_TRANSFER_COMPLETED;
break;
case ERROR_CANCELLED:
usbi_dbg("detected transfer cancel");
status = LIBUSB_TRANSFER_CANCELLED;
break;
case ERROR_NOT_SUPPORTED:
case ERROR_GEN_FAILURE:
usbi_dbg("detected endpoint stall");
status = LIBUSB_TRANSFER_STALL;
break;
case ERROR_SEM_TIMEOUT:
usbi_dbg("detected semaphore timeout");
status = LIBUSB_TRANSFER_TIMED_OUT;
break;
case ERROR_OPERATION_ABORTED:
usbi_dbg("detected operation aborted");
status = LIBUSB_TRANSFER_CANCELLED;
break;
default:
usbi_err(ITRANSFER_CTX(itransfer), "detected I/O error: %s", windows_error_str(io_result));
status = LIBUSB_TRANSFER_ERROR;
break;
}
wince_clear_transfer_priv(itransfer);
if (status == LIBUSB_TRANSFER_CANCELLED)
usbi_handle_transfer_cancellation(itransfer);
else
usbi_handle_transfer_completion(itransfer, (enum libusb_transfer_status)status);
}
static void wince_handle_callback(
struct usbi_transfer *itransfer,
uint32_t io_result, uint32_t io_size)
{
struct libusb_transfer *transfer = USBI_TRANSFER_TO_LIBUSB_TRANSFER(itransfer);
switch (transfer->type) {
case LIBUSB_TRANSFER_TYPE_CONTROL:
case LIBUSB_TRANSFER_TYPE_BULK:
case LIBUSB_TRANSFER_TYPE_INTERRUPT:
case LIBUSB_TRANSFER_TYPE_ISOCHRONOUS:
wince_transfer_callback (itransfer, io_result, io_size);
break;
case LIBUSB_TRANSFER_TYPE_BULK_STREAM:
break;
default:
usbi_err(ITRANSFER_CTX(itransfer), "unknown endpoint type %d", transfer->type);
}
}
static int wince_handle_events(
struct libusb_context *ctx,
struct pollfd *fds, POLL_NFDS_TYPE nfds, int num_ready)
{
struct wince_transfer_priv* transfer_priv = NULL;
POLL_NFDS_TYPE i = 0;
BOOL found = FALSE;
struct usbi_transfer *transfer;
DWORD io_size, io_result;
int r = LIBUSB_SUCCESS;
usbi_mutex_lock(&ctx->open_devs_lock);
for (i = 0; i < nfds && num_ready > 0; i++) {
usbi_dbg("checking fd %d with revents = %04x", fds[i].fd, fds[i].revents);
if (!fds[i].revents)
continue;
num_ready--;
// Because a Windows OVERLAPPED is used for poll emulation,
// a pollable fd is created and stored with each transfer
usbi_mutex_lock(&ctx->flying_transfers_lock);
list_for_each_entry(transfer, &ctx->flying_transfers, list, struct usbi_transfer) {
transfer_priv = usbi_transfer_get_os_priv(transfer);
if (transfer_priv->pollable_fd.fd == fds[i].fd) {
found = TRUE;
break;
}
}
usbi_mutex_unlock(&ctx->flying_transfers_lock);
if (found && HasOverlappedIoCompleted(transfer_priv->pollable_fd.overlapped)) {
io_result = (DWORD)transfer_priv->pollable_fd.overlapped->Internal;
io_size = (DWORD)transfer_priv->pollable_fd.overlapped->InternalHigh;
usbi_remove_pollfd(ctx, transfer_priv->pollable_fd.fd);
// let handle_callback free the event using the transfer wfd
// If you don't use the transfer wfd, you run a risk of trying to free a
// newly allocated wfd that took the place of the one from the transfer.
wince_handle_callback(transfer, io_result, io_size);
} else if (found) {
usbi_err(ctx, "matching transfer for fd %d has not completed", fds[i]);
r = LIBUSB_ERROR_OTHER;
break;
} else {
usbi_err(ctx, "could not find a matching transfer for fd %d", fds[i]);
r = LIBUSB_ERROR_NOT_FOUND;
break;
}
}
usbi_mutex_unlock(&ctx->open_devs_lock);
return r;
}
/*
* Monotonic and real time functions
*/
static int wince_clock_gettime(int clk_id, struct timespec *tp)
{
LARGE_INTEGER hires_counter;
ULARGE_INTEGER rtime;
FILETIME filetime;
SYSTEMTIME st;
switch(clk_id) {
case USBI_CLOCK_MONOTONIC:
if (hires_frequency != 0 && QueryPerformanceCounter(&hires_counter)) {
tp->tv_sec = (long)(hires_counter.QuadPart / hires_frequency);
tp->tv_nsec = (long)(((hires_counter.QuadPart % hires_frequency) / 1000) * hires_ticks_to_ps);
return LIBUSB_SUCCESS;
}
// Fall through and return real-time if monotonic read failed or was not detected @ init
case USBI_CLOCK_REALTIME:
// We follow http://msdn.microsoft.com/en-us/library/ms724928%28VS.85%29.aspx
// with a predef epoch time to have an epoch that starts at 1970.01.01 00:00
// Note however that our resolution is bounded by the Windows system time
// functions and is at best of the order of 1 ms (or, usually, worse)
GetSystemTime(&st);
SystemTimeToFileTime(&st, &filetime);
rtime.LowPart = filetime.dwLowDateTime;
rtime.HighPart = filetime.dwHighDateTime;
rtime.QuadPart -= EPOCH_TIME;
tp->tv_sec = (long)(rtime.QuadPart / 10000000);
tp->tv_nsec = (long)((rtime.QuadPart % 10000000)*100);
return LIBUSB_SUCCESS;
default:
return LIBUSB_ERROR_INVALID_PARAM;
}
}
const struct usbi_os_backend wince_backend = {
"Windows CE",
0,
wince_init,
wince_exit,
wince_get_device_list,
NULL, /* hotplug_poll */
wince_open,
wince_close,
wince_get_device_descriptor,
wince_get_active_config_descriptor,
wince_get_config_descriptor,
NULL, /* get_config_descriptor_by_value() */
wince_get_configuration,
wince_set_configuration,
wince_claim_interface,
wince_release_interface,
wince_set_interface_altsetting,
wince_clear_halt,
wince_reset_device,
NULL, /* alloc_streams */
NULL, /* free_streams */
NULL, /* dev_mem_alloc() */
NULL, /* dev_mem_free() */
wince_kernel_driver_active,
wince_detach_kernel_driver,
wince_attach_kernel_driver,
wince_destroy_device,
wince_submit_transfer,
wince_cancel_transfer,
wince_clear_transfer_priv,
wince_handle_events,
NULL, /* handle_transfer_completion() */
wince_clock_gettime,
sizeof(struct wince_device_priv),
0,
sizeof(struct wince_transfer_priv),
};

126
vendor/github.com/karalabe/hid/libusb/libusb/os/wince_usb.h generated vendored Normal file
View File

@ -0,0 +1,126 @@
/*
* Windows CE backend for libusb 1.0
* Copyright © 2011-2013 RealVNC Ltd.
* Portions taken from Windows backend, which is
* Copyright © 2009-2010 Pete Batard <pbatard@gmail.com>
* With contributions from Michael Plante, Orin Eman et al.
* Parts of this code adapted from libusb-win32-v1 by Stephan Meyer
* Major code testing contribution by Xiaofan Chen
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#pragma once
#include "windows_common.h"
#include <windows.h>
#include "poll_windows.h"
#define MAX_DEVICE_COUNT 256
// This is a modified dump of the types in the ceusbkwrapper.h library header
// with functions transformed into extern pointers.
//
// This backend dynamically loads ceusbkwrapper.dll and doesn't include
// ceusbkwrapper.h directly to simplify the build process. The kernel
// side wrapper driver is built using the platform image build tools,
// which makes it difficult to reference directly from the libusb build
// system.
struct UKW_DEVICE_PRIV;
typedef struct UKW_DEVICE_PRIV *UKW_DEVICE;
typedef UKW_DEVICE *PUKW_DEVICE, *LPUKW_DEVICE;
typedef struct {
UINT8 bLength;
UINT8 bDescriptorType;
UINT16 bcdUSB;
UINT8 bDeviceClass;
UINT8 bDeviceSubClass;
UINT8 bDeviceProtocol;
UINT8 bMaxPacketSize0;
UINT16 idVendor;
UINT16 idProduct;
UINT16 bcdDevice;
UINT8 iManufacturer;
UINT8 iProduct;
UINT8 iSerialNumber;
UINT8 bNumConfigurations;
} UKW_DEVICE_DESCRIPTOR, *PUKW_DEVICE_DESCRIPTOR, *LPUKW_DEVICE_DESCRIPTOR;
typedef struct {
UINT8 bmRequestType;
UINT8 bRequest;
UINT16 wValue;
UINT16 wIndex;
UINT16 wLength;
} UKW_CONTROL_HEADER, *PUKW_CONTROL_HEADER, *LPUKW_CONTROL_HEADER;
// Collection of flags which can be used when issuing transfer requests
/* Indicates that the transfer direction is 'in' */
#define UKW_TF_IN_TRANSFER 0x00000001
/* Indicates that the transfer direction is 'out' */
#define UKW_TF_OUT_TRANSFER 0x00000000
/* Specifies that the transfer should complete as soon as possible,
* even if no OVERLAPPED structure has been provided. */
#define UKW_TF_NO_WAIT 0x00000100
/* Indicates that transfers shorter than the buffer are ok */
#define UKW_TF_SHORT_TRANSFER_OK 0x00000200
#define UKW_TF_SEND_TO_DEVICE 0x00010000
#define UKW_TF_SEND_TO_INTERFACE 0x00020000
#define UKW_TF_SEND_TO_ENDPOINT 0x00040000
/* Don't block when waiting for memory allocations */
#define UKW_TF_DONT_BLOCK_FOR_MEM 0x00080000
/* Value to use when dealing with configuration values, such as UkwGetConfigDescriptor,
* to specify the currently active configuration for the device. */
#define UKW_ACTIVE_CONFIGURATION -1
DLL_DECLARE_HANDLE(ceusbkwrapper);
DLL_DECLARE_FUNC(WINAPI, HANDLE, UkwOpenDriver, ());
DLL_DECLARE_FUNC(WINAPI, BOOL, UkwGetDeviceList, (HANDLE, LPUKW_DEVICE, DWORD, LPDWORD));
DLL_DECLARE_FUNC(WINAPI, void, UkwReleaseDeviceList, (HANDLE, LPUKW_DEVICE, DWORD));
DLL_DECLARE_FUNC(WINAPI, BOOL, UkwGetDeviceAddress, (UKW_DEVICE, unsigned char*, unsigned char*, unsigned long*));
DLL_DECLARE_FUNC(WINAPI, BOOL, UkwGetDeviceDescriptor, (UKW_DEVICE, LPUKW_DEVICE_DESCRIPTOR));
DLL_DECLARE_FUNC(WINAPI, BOOL, UkwGetConfigDescriptor, (UKW_DEVICE, DWORD, LPVOID, DWORD, LPDWORD));
DLL_DECLARE_FUNC(WINAPI, void, UkwCloseDriver, (HANDLE));
DLL_DECLARE_FUNC(WINAPI, BOOL, UkwCancelTransfer, (UKW_DEVICE, LPOVERLAPPED, DWORD));
DLL_DECLARE_FUNC(WINAPI, BOOL, UkwIssueControlTransfer, (UKW_DEVICE, DWORD, LPUKW_CONTROL_HEADER, LPVOID, DWORD, LPDWORD, LPOVERLAPPED));
DLL_DECLARE_FUNC(WINAPI, BOOL, UkwClaimInterface, (UKW_DEVICE, DWORD));
DLL_DECLARE_FUNC(WINAPI, BOOL, UkwReleaseInterface, (UKW_DEVICE, DWORD));
DLL_DECLARE_FUNC(WINAPI, BOOL, UkwSetInterfaceAlternateSetting, (UKW_DEVICE, DWORD, DWORD));
DLL_DECLARE_FUNC(WINAPI, BOOL, UkwClearHaltHost, (UKW_DEVICE, UCHAR));
DLL_DECLARE_FUNC(WINAPI, BOOL, UkwClearHaltDevice, (UKW_DEVICE, UCHAR));
DLL_DECLARE_FUNC(WINAPI, BOOL, UkwGetConfig, (UKW_DEVICE, PUCHAR));
DLL_DECLARE_FUNC(WINAPI, BOOL, UkwSetConfig, (UKW_DEVICE, UCHAR));
DLL_DECLARE_FUNC(WINAPI, BOOL, UkwResetDevice, (UKW_DEVICE));
DLL_DECLARE_FUNC(WINAPI, BOOL, UkwKernelDriverActive, (UKW_DEVICE, DWORD, PBOOL));
DLL_DECLARE_FUNC(WINAPI, BOOL, UkwAttachKernelDriver, (UKW_DEVICE, DWORD));
DLL_DECLARE_FUNC(WINAPI, BOOL, UkwDetachKernelDriver, (UKW_DEVICE, DWORD));
DLL_DECLARE_FUNC(WINAPI, BOOL, UkwIssueBulkTransfer, (UKW_DEVICE, DWORD, UCHAR, LPVOID, DWORD, LPDWORD, LPOVERLAPPED));
DLL_DECLARE_FUNC(WINAPI, BOOL, UkwIsPipeHalted, (UKW_DEVICE, UCHAR, LPBOOL));
// Used to determine if an endpoint status really is halted on a failed transfer.
#define STATUS_HALT_FLAG 0x1
struct wince_device_priv {
UKW_DEVICE dev;
UKW_DEVICE_DESCRIPTOR desc;
};
struct wince_transfer_priv {
struct winfd pollable_fd;
uint8_t interface_number;
};

124
vendor/github.com/karalabe/hid/libusb/libusb/os/windows_common.h generated vendored Normal file
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/*
* Windows backend common header for libusb 1.0
*
* This file brings together header code common between
* the desktop Windows and Windows CE backends.
* Copyright © 2012-2013 RealVNC Ltd.
* Copyright © 2009-2012 Pete Batard <pete@akeo.ie>
* With contributions from Michael Plante, Orin Eman et al.
* Parts of this code adapted from libusb-win32-v1 by Stephan Meyer
* Major code testing contribution by Xiaofan Chen
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#pragma once
// Windows API default is uppercase - ugh!
#if !defined(bool)
#define bool BOOL
#endif
#if !defined(true)
#define true TRUE
#endif
#if !defined(false)
#define false FALSE
#endif
#define EPOCH_TIME UINT64_C(116444736000000000) // 1970.01.01 00:00:000 in MS Filetime
#if defined(__CYGWIN__ )
#define _stricmp strcasecmp
#define _strdup strdup
// _beginthreadex is MSVCRT => unavailable for cygwin. Fallback to using CreateThread
#define _beginthreadex(a, b, c, d, e, f) CreateThread(a, b, (LPTHREAD_START_ROUTINE)c, d, e, (LPDWORD)f)
#endif
#define safe_free(p) do {if (p != NULL) {free((void *)p); p = NULL;}} while (0)
#ifndef ARRAYSIZE
#define ARRAYSIZE(A) (sizeof(A)/sizeof((A)[0]))
#endif
#define ERR_BUFFER_SIZE 256
/*
* API macros - leveraged from libusb-win32 1.x
*/
#ifndef _WIN32_WCE
#define DLL_STRINGIFY(s) #s
#define DLL_LOAD_LIBRARY(name) LoadLibraryA(DLL_STRINGIFY(name))
#else
#define DLL_STRINGIFY(s) L#s
#define DLL_LOAD_LIBRARY(name) LoadLibrary(DLL_STRINGIFY(name))
#endif
/*
* Macros for handling DLL themselves
*/
#define DLL_DECLARE_HANDLE(name) \
static HMODULE __dll_##name##_handle = NULL
#define DLL_GET_HANDLE(name) \
do { \
__dll_##name##_handle = DLL_LOAD_LIBRARY(name); \
if (!__dll_##name##_handle) \
return LIBUSB_ERROR_OTHER; \
} while (0)
#define DLL_FREE_HANDLE(name) \
do { \
if (__dll_##name##_handle) { \
FreeLibrary(__dll_##name##_handle); \
__dll_##name##_handle = NULL; \
} \
} while(0)
/*
* Macros for handling functions within a DLL
*/
#define DLL_DECLARE_FUNC_PREFIXNAME(api, ret, prefixname, name, args) \
typedef ret (api * __dll_##name##_func_t)args; \
static __dll_##name##_func_t prefixname = NULL
#define DLL_DECLARE_FUNC(api, ret, name, args) \
DLL_DECLARE_FUNC_PREFIXNAME(api, ret, name, name, args)
#define DLL_DECLARE_FUNC_PREFIXED(api, ret, prefix, name, args) \
DLL_DECLARE_FUNC_PREFIXNAME(api, ret, prefix##name, name, args)
#define DLL_LOAD_FUNC_PREFIXNAME(dll, prefixname, name, ret_on_failure) \
do { \
HMODULE h = __dll_##dll##_handle; \
prefixname = (__dll_##name##_func_t)GetProcAddress(h, \
DLL_STRINGIFY(name)); \
if (prefixname) \
break; \
prefixname = (__dll_##name##_func_t)GetProcAddress(h, \
DLL_STRINGIFY(name) DLL_STRINGIFY(A)); \
if (prefixname) \
break; \
prefixname = (__dll_##name##_func_t)GetProcAddress(h, \
DLL_STRINGIFY(name) DLL_STRINGIFY(W)); \
if (prefixname) \
break; \
if (ret_on_failure) \
return LIBUSB_ERROR_NOT_FOUND; \
} while(0)
#define DLL_LOAD_FUNC(dll, name, ret_on_failure) \
DLL_LOAD_FUNC_PREFIXNAME(dll, name, name, ret_on_failure)
#define DLL_LOAD_FUNC_PREFIXED(dll, prefix, name, ret_on_failure) \
DLL_LOAD_FUNC_PREFIXNAME(dll, prefix##name, name, ret_on_failure)

591
vendor/github.com/karalabe/hid/libusb/libusb/os/windows_nt_common.c generated vendored Normal file
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@ -0,0 +1,591 @@
/*
* windows backend for libusb 1.0
* Copyright © 2009-2012 Pete Batard <pete@akeo.ie>
* With contributions from Michael Plante, Orin Eman et al.
* Parts of this code adapted from libusb-win32-v1 by Stephan Meyer
* HID Reports IOCTLs inspired from HIDAPI by Alan Ott, Signal 11 Software
* Hash table functions adapted from glibc, by Ulrich Drepper et al.
* Major code testing contribution by Xiaofan Chen
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#include <config.h>
#include <inttypes.h>
#include <process.h>
#include <stdio.h>
#include "libusbi.h"
#include "windows_common.h"
#include "windows_nt_common.h"
// Global variables for clock_gettime mechanism
static uint64_t hires_ticks_to_ps;
static uint64_t hires_frequency;
#define TIMER_REQUEST_RETRY_MS 100
#define WM_TIMER_REQUEST (WM_USER + 1)
#define WM_TIMER_EXIT (WM_USER + 2)
// used for monotonic clock_gettime()
struct timer_request {
struct timespec *tp;
HANDLE event;
};
// Timer thread
static HANDLE timer_thread = NULL;
static DWORD timer_thread_id = 0;
/* User32 dependencies */
DLL_DECLARE_HANDLE(User32);
DLL_DECLARE_FUNC_PREFIXED(WINAPI, BOOL, p, GetMessageA, (LPMSG, HWND, UINT, UINT));
DLL_DECLARE_FUNC_PREFIXED(WINAPI, BOOL, p, PeekMessageA, (LPMSG, HWND, UINT, UINT, UINT));
DLL_DECLARE_FUNC_PREFIXED(WINAPI, BOOL, p, PostThreadMessageA, (DWORD, UINT, WPARAM, LPARAM));
static unsigned __stdcall windows_clock_gettime_threaded(void *param);
/*
* Converts a windows error to human readable string
* uses retval as errorcode, or, if 0, use GetLastError()
*/
#if defined(ENABLE_LOGGING)
const char *windows_error_str(DWORD error_code)
{
static char err_string[ERR_BUFFER_SIZE];
DWORD size;
int len;
if (error_code == 0)
error_code = GetLastError();
len = sprintf(err_string, "[%u] ", (unsigned int)error_code);
// Translate codes returned by SetupAPI. The ones we are dealing with are either
// in 0x0000xxxx or 0xE000xxxx and can be distinguished from standard error codes.
// See http://msdn.microsoft.com/en-us/library/windows/hardware/ff545011.aspx
switch (error_code & 0xE0000000) {
case 0:
error_code = HRESULT_FROM_WIN32(error_code); // Still leaves ERROR_SUCCESS unmodified
break;
case 0xE0000000:
error_code = 0x80000000 | (FACILITY_SETUPAPI << 16) | (error_code & 0x0000FFFF);
break;
default:
break;
}
size = FormatMessageA(FORMAT_MESSAGE_FROM_SYSTEM|FORMAT_MESSAGE_IGNORE_INSERTS,
NULL, error_code, MAKELANGID(LANG_NEUTRAL, SUBLANG_DEFAULT),
&err_string[len], ERR_BUFFER_SIZE - len, NULL);
if (size == 0) {
DWORD format_error = GetLastError();
if (format_error)
snprintf(err_string, ERR_BUFFER_SIZE,
"Windows error code %u (FormatMessage error code %u)",
(unsigned int)error_code, (unsigned int)format_error);
else
snprintf(err_string, ERR_BUFFER_SIZE, "Unknown error code %u", (unsigned int)error_code);
} else {
// Remove CRLF from end of message, if present
size_t pos = len + size - 2;
if (err_string[pos] == '\r')
err_string[pos] = '\0';
}
return err_string;
}
#endif
/* Hash table functions - modified From glibc 2.3.2:
[Aho,Sethi,Ullman] Compilers: Principles, Techniques and Tools, 1986
[Knuth] The Art of Computer Programming, part 3 (6.4) */
#define HTAB_SIZE 1021UL // *MUST* be a prime number!!
typedef struct htab_entry {
unsigned long used;
char *str;
} htab_entry;
static htab_entry *htab_table = NULL;
static usbi_mutex_t htab_mutex = NULL;
static unsigned long htab_filled;
/* Before using the hash table we must allocate memory for it.
We allocate one element more as the found prime number says.
This is done for more effective indexing as explained in the
comment for the hash function. */
static bool htab_create(struct libusb_context *ctx)
{
if (htab_table != NULL) {
usbi_err(ctx, "hash table already allocated");
return true;
}
// Create a mutex
usbi_mutex_init(&htab_mutex);
usbi_dbg("using %lu entries hash table", HTAB_SIZE);
htab_filled = 0;
// allocate memory and zero out.
htab_table = calloc(HTAB_SIZE + 1, sizeof(htab_entry));
if (htab_table == NULL) {
usbi_err(ctx, "could not allocate space for hash table");
return false;
}
return true;
}
/* After using the hash table it has to be destroyed. */
static void htab_destroy(void)
{
unsigned long i;
if (htab_table == NULL)
return;
for (i = 0; i < HTAB_SIZE; i++)
free(htab_table[i].str);
safe_free(htab_table);
usbi_mutex_destroy(&htab_mutex);
}
/* This is the search function. It uses double hashing with open addressing.
We use a trick to speed up the lookup. The table is created with one
more element available. This enables us to use the index zero special.
This index will never be used because we store the first hash index in
the field used where zero means not used. Every other value means used.
The used field can be used as a first fast comparison for equality of
the stored and the parameter value. This helps to prevent unnecessary
expensive calls of strcmp. */
unsigned long htab_hash(const char *str)
{
unsigned long hval, hval2;
unsigned long idx;
unsigned long r = 5381;
int c;
const char *sz = str;
if (str == NULL)
return 0;
// Compute main hash value (algorithm suggested by Nokia)
while ((c = *sz++) != 0)
r = ((r << 5) + r) + c;
if (r == 0)
++r;
// compute table hash: simply take the modulus
hval = r % HTAB_SIZE;
if (hval == 0)
++hval;
// Try the first index
idx = hval;
// Mutually exclusive access (R/W lock would be better)
usbi_mutex_lock(&htab_mutex);
if (htab_table[idx].used) {
if ((htab_table[idx].used == hval) && (strcmp(str, htab_table[idx].str) == 0))
goto out_unlock; // existing hash
usbi_dbg("hash collision ('%s' vs '%s')", str, htab_table[idx].str);
// Second hash function, as suggested in [Knuth]
hval2 = 1 + hval % (HTAB_SIZE - 2);
do {
// Because size is prime this guarantees to step through all available indexes
if (idx <= hval2)
idx = HTAB_SIZE + idx - hval2;
else
idx -= hval2;
// If we visited all entries leave the loop unsuccessfully
if (idx == hval)
break;
// If entry is found use it.
if ((htab_table[idx].used == hval) && (strcmp(str, htab_table[idx].str) == 0))
goto out_unlock;
} while (htab_table[idx].used);
}
// Not found => New entry
// If the table is full return an error
if (htab_filled >= HTAB_SIZE) {
usbi_err(NULL, "hash table is full (%lu entries)", HTAB_SIZE);
idx = 0;
goto out_unlock;
}
htab_table[idx].str = _strdup(str);
if (htab_table[idx].str == NULL) {
usbi_err(NULL, "could not duplicate string for hash table");
idx = 0;
goto out_unlock;
}
htab_table[idx].used = hval;
++htab_filled;
out_unlock:
usbi_mutex_unlock(&htab_mutex);
return idx;
}
static int windows_init_dlls(void)
{
DLL_GET_HANDLE(User32);
DLL_LOAD_FUNC_PREFIXED(User32, p, GetMessageA, TRUE);
DLL_LOAD_FUNC_PREFIXED(User32, p, PeekMessageA, TRUE);
DLL_LOAD_FUNC_PREFIXED(User32, p, PostThreadMessageA, TRUE);
return LIBUSB_SUCCESS;
}
static void windows_exit_dlls(void)
{
DLL_FREE_HANDLE(User32);
}
static bool windows_init_clock(struct libusb_context *ctx)
{
DWORD_PTR affinity, dummy;
HANDLE event = NULL;
LARGE_INTEGER li_frequency;
int i;
if (QueryPerformanceFrequency(&li_frequency)) {
// Load DLL imports
if (windows_init_dlls() != LIBUSB_SUCCESS) {
usbi_err(ctx, "could not resolve DLL functions");
return false;
}
// The hires frequency can go as high as 4 GHz, so we'll use a conversion
// to picoseconds to compute the tv_nsecs part in clock_gettime
hires_frequency = li_frequency.QuadPart;
hires_ticks_to_ps = UINT64_C(1000000000000) / hires_frequency;
usbi_dbg("hires timer available (Frequency: %"PRIu64" Hz)", hires_frequency);
// Because QueryPerformanceCounter might report different values when
// running on different cores, we create a separate thread for the timer
// calls, which we glue to the first available core always to prevent timing discrepancies.
if (!GetProcessAffinityMask(GetCurrentProcess(), &affinity, &dummy) || (affinity == 0)) {
usbi_err(ctx, "could not get process affinity: %s", windows_error_str(0));
return false;
}
// The process affinity mask is a bitmask where each set bit represents a core on
// which this process is allowed to run, so we find the first set bit
for (i = 0; !(affinity & (DWORD_PTR)(1 << i)); i++);
affinity = (DWORD_PTR)(1 << i);
usbi_dbg("timer thread will run on core #%d", i);
event = CreateEvent(NULL, FALSE, FALSE, NULL);
if (event == NULL) {
usbi_err(ctx, "could not create event: %s", windows_error_str(0));
return false;
}
timer_thread = (HANDLE)_beginthreadex(NULL, 0, windows_clock_gettime_threaded, (void *)event,
0, (unsigned int *)&timer_thread_id);
if (timer_thread == NULL) {
usbi_err(ctx, "unable to create timer thread - aborting");
CloseHandle(event);
return false;
}
if (!SetThreadAffinityMask(timer_thread, affinity))
usbi_warn(ctx, "unable to set timer thread affinity, timer discrepancies may arise");
// Wait for timer thread to init before continuing.
if (WaitForSingleObject(event, INFINITE) != WAIT_OBJECT_0) {
usbi_err(ctx, "failed to wait for timer thread to become ready - aborting");
CloseHandle(event);
return false;
}
CloseHandle(event);
} else {
usbi_dbg("no hires timer available on this platform");
hires_frequency = 0;
hires_ticks_to_ps = UINT64_C(0);
}
return true;
}
void windows_destroy_clock(void)
{
if (timer_thread) {
// actually the signal to quit the thread.
if (!pPostThreadMessageA(timer_thread_id, WM_TIMER_EXIT, 0, 0)
|| (WaitForSingleObject(timer_thread, INFINITE) != WAIT_OBJECT_0)) {
usbi_dbg("could not wait for timer thread to quit");
TerminateThread(timer_thread, 1);
// shouldn't happen, but we're destroying
// all objects it might have held anyway.
}
CloseHandle(timer_thread);
timer_thread = NULL;
timer_thread_id = 0;
}
}
/*
* Monotonic and real time functions
*/
static unsigned __stdcall windows_clock_gettime_threaded(void *param)
{
struct timer_request *request;
LARGE_INTEGER hires_counter;
MSG msg;
// The following call will create this thread's message queue
// See https://msdn.microsoft.com/en-us/library/windows/desktop/ms644946.aspx
pPeekMessageA(&msg, NULL, WM_USER, WM_USER, PM_NOREMOVE);
// Signal windows_init_clock() that we're ready to service requests
if (!SetEvent((HANDLE)param))
usbi_dbg("SetEvent failed for timer init event: %s", windows_error_str(0));
param = NULL;
// Main loop - wait for requests
while (1) {
if (pGetMessageA(&msg, NULL, WM_TIMER_REQUEST, WM_TIMER_EXIT) == -1) {
usbi_err(NULL, "GetMessage failed for timer thread: %s", windows_error_str(0));
return 1;
}
switch (msg.message) {
case WM_TIMER_REQUEST:
// Requests to this thread are for hires always
// Microsoft says that this function always succeeds on XP and later
// See https://msdn.microsoft.com/en-us/library/windows/desktop/ms644904.aspx
request = (struct timer_request *)msg.lParam;
QueryPerformanceCounter(&hires_counter);
request->tp->tv_sec = (long)(hires_counter.QuadPart / hires_frequency);
request->tp->tv_nsec = (long)(((hires_counter.QuadPart % hires_frequency) / 1000) * hires_ticks_to_ps);
if (!SetEvent(request->event))
usbi_err(NULL, "SetEvent failed for timer request: %s", windows_error_str(0));
break;
case WM_TIMER_EXIT:
usbi_dbg("timer thread quitting");
return 0;
}
}
}
int windows_clock_gettime(int clk_id, struct timespec *tp)
{
struct timer_request request;
#if !defined(_MSC_VER) || (_MSC_VER < 1900)
FILETIME filetime;
ULARGE_INTEGER rtime;
#endif
DWORD r;
switch (clk_id) {
case USBI_CLOCK_MONOTONIC:
if (timer_thread) {
request.tp = tp;
request.event = CreateEvent(NULL, FALSE, FALSE, NULL);
if (request.event == NULL)
return LIBUSB_ERROR_NO_MEM;
if (!pPostThreadMessageA(timer_thread_id, WM_TIMER_REQUEST, 0, (LPARAM)&request)) {
usbi_err(NULL, "PostThreadMessage failed for timer thread: %s", windows_error_str(0));
CloseHandle(request.event);
return LIBUSB_ERROR_OTHER;
}
do {
r = WaitForSingleObject(request.event, TIMER_REQUEST_RETRY_MS);
if (r == WAIT_TIMEOUT)
usbi_dbg("could not obtain a timer value within reasonable timeframe - too much load?");
else if (r == WAIT_FAILED)
usbi_err(NULL, "WaitForSingleObject failed: %s", windows_error_str(0));
} while (r == WAIT_TIMEOUT);
CloseHandle(request.event);
if (r == WAIT_OBJECT_0)
return LIBUSB_SUCCESS;
else
return LIBUSB_ERROR_OTHER;
}
// Fall through and return real-time if monotonic was not detected @ timer init
case USBI_CLOCK_REALTIME:
#if defined(_MSC_VER) && (_MSC_VER >= 1900)
timespec_get(tp, TIME_UTC);
#else
// We follow http://msdn.microsoft.com/en-us/library/ms724928%28VS.85%29.aspx
// with a predef epoch time to have an epoch that starts at 1970.01.01 00:00
// Note however that our resolution is bounded by the Windows system time
// functions and is at best of the order of 1 ms (or, usually, worse)
GetSystemTimeAsFileTime(&filetime);
rtime.LowPart = filetime.dwLowDateTime;
rtime.HighPart = filetime.dwHighDateTime;
rtime.QuadPart -= EPOCH_TIME;
tp->tv_sec = (long)(rtime.QuadPart / 10000000);
tp->tv_nsec = (long)((rtime.QuadPart % 10000000) * 100);
#endif
return LIBUSB_SUCCESS;
default:
return LIBUSB_ERROR_INVALID_PARAM;
}
}
static void windows_transfer_callback(struct usbi_transfer *itransfer, uint32_t io_result, uint32_t io_size)
{
int status, istatus;
usbi_dbg("handling I/O completion with errcode %u, size %u", io_result, io_size);
switch (io_result) {
case NO_ERROR:
status = windows_copy_transfer_data(itransfer, io_size);
break;
case ERROR_GEN_FAILURE:
usbi_dbg("detected endpoint stall");
status = LIBUSB_TRANSFER_STALL;
break;
case ERROR_SEM_TIMEOUT:
usbi_dbg("detected semaphore timeout");
status = LIBUSB_TRANSFER_TIMED_OUT;
break;
case ERROR_OPERATION_ABORTED:
istatus = windows_copy_transfer_data(itransfer, io_size);
if (istatus != LIBUSB_TRANSFER_COMPLETED)
usbi_dbg("Failed to copy partial data in aborted operation: %d", istatus);
usbi_dbg("detected operation aborted");
status = LIBUSB_TRANSFER_CANCELLED;
break;
default:
usbi_err(ITRANSFER_CTX(itransfer), "detected I/O error %u: %s", io_result, windows_error_str(io_result));
status = LIBUSB_TRANSFER_ERROR;
break;
}
windows_clear_transfer_priv(itransfer); // Cancel polling
if (status == LIBUSB_TRANSFER_CANCELLED)
usbi_handle_transfer_cancellation(itransfer);
else
usbi_handle_transfer_completion(itransfer, (enum libusb_transfer_status)status);
}
void windows_handle_callback(struct usbi_transfer *itransfer, uint32_t io_result, uint32_t io_size)
{
struct libusb_transfer *transfer = USBI_TRANSFER_TO_LIBUSB_TRANSFER(itransfer);
switch (transfer->type) {
case LIBUSB_TRANSFER_TYPE_CONTROL:
case LIBUSB_TRANSFER_TYPE_BULK:
case LIBUSB_TRANSFER_TYPE_INTERRUPT:
case LIBUSB_TRANSFER_TYPE_ISOCHRONOUS:
windows_transfer_callback(itransfer, io_result, io_size);
break;
case LIBUSB_TRANSFER_TYPE_BULK_STREAM:
usbi_warn(ITRANSFER_CTX(itransfer), "bulk stream transfers are not yet supported on this platform");
break;
default:
usbi_err(ITRANSFER_CTX(itransfer), "unknown endpoint type %d", transfer->type);
}
}
int windows_handle_events(struct libusb_context *ctx, struct pollfd *fds, POLL_NFDS_TYPE nfds, int num_ready)
{
POLL_NFDS_TYPE i;
bool found = false;
struct usbi_transfer *transfer;
struct winfd *pollable_fd = NULL;
DWORD io_size, io_result;
int r = LIBUSB_SUCCESS;
usbi_mutex_lock(&ctx->open_devs_lock);
for (i = 0; i < nfds && num_ready > 0; i++) {
usbi_dbg("checking fd %d with revents = %04x", fds[i].fd, fds[i].revents);
if (!fds[i].revents)
continue;
num_ready--;
// Because a Windows OVERLAPPED is used for poll emulation,
// a pollable fd is created and stored with each transfer
usbi_mutex_lock(&ctx->flying_transfers_lock);
found = false;
list_for_each_entry(transfer, &ctx->flying_transfers, list, struct usbi_transfer) {
pollable_fd = windows_get_fd(transfer);
if (pollable_fd->fd == fds[i].fd) {
found = true;
break;
}
}
usbi_mutex_unlock(&ctx->flying_transfers_lock);
if (found) {
windows_get_overlapped_result(transfer, pollable_fd, &io_result, &io_size);
usbi_remove_pollfd(ctx, pollable_fd->fd);
// let handle_callback free the event using the transfer wfd
// If you don't use the transfer wfd, you run a risk of trying to free a
// newly allocated wfd that took the place of the one from the transfer.
windows_handle_callback(transfer, io_result, io_size);
} else {
usbi_err(ctx, "could not find a matching transfer for fd %d", fds[i]);
r = LIBUSB_ERROR_NOT_FOUND;
break;
}
}
usbi_mutex_unlock(&ctx->open_devs_lock);
return r;
}
int windows_common_init(struct libusb_context *ctx)
{
if (!windows_init_clock(ctx))
goto error_roll_back;
if (!htab_create(ctx))
goto error_roll_back;
return LIBUSB_SUCCESS;
error_roll_back:
windows_common_exit();
return LIBUSB_ERROR_NO_MEM;
}
void windows_common_exit(void)
{
htab_destroy();
windows_destroy_clock();
windows_exit_dlls();
}

63
vendor/github.com/karalabe/hid/libusb/libusb/os/windows_nt_common.h generated vendored Normal file
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@ -0,0 +1,63 @@
/*
* Windows backend common header for libusb 1.0
*
* This file brings together header code common between
* the desktop Windows backends.
* Copyright © 2012-2013 RealVNC Ltd.
* Copyright © 2009-2012 Pete Batard <pete@akeo.ie>
* With contributions from Michael Plante, Orin Eman et al.
* Parts of this code adapted from libusb-win32-v1 by Stephan Meyer
* Major code testing contribution by Xiaofan Chen
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#pragma once
// Missing from MinGW
#if !defined(FACILITY_SETUPAPI)
#define FACILITY_SETUPAPI 15
#endif
typedef struct USB_CONFIGURATION_DESCRIPTOR {
UCHAR bLength;
UCHAR bDescriptorType;
USHORT wTotalLength;
UCHAR bNumInterfaces;
UCHAR bConfigurationValue;
UCHAR iConfiguration;
UCHAR bmAttributes;
UCHAR MaxPower;
} USB_CONFIGURATION_DESCRIPTOR, *PUSB_CONFIGURATION_DESCRIPTOR;
typedef struct libusb_device_descriptor USB_DEVICE_DESCRIPTOR, *PUSB_DEVICE_DESCRIPTOR;
int windows_common_init(struct libusb_context *ctx);
void windows_common_exit(void);
unsigned long htab_hash(const char *str);
int windows_clock_gettime(int clk_id, struct timespec *tp);
void windows_clear_transfer_priv(struct usbi_transfer *itransfer);
int windows_copy_transfer_data(struct usbi_transfer *itransfer, uint32_t io_size);
struct winfd *windows_get_fd(struct usbi_transfer *transfer);
void windows_get_overlapped_result(struct usbi_transfer *transfer, struct winfd *pollable_fd, DWORD *io_result, DWORD *io_size);
void windows_handle_callback(struct usbi_transfer *itransfer, uint32_t io_result, uint32_t io_size);
int windows_handle_events(struct libusb_context *ctx, struct pollfd *fds, POLL_NFDS_TYPE nfds, int num_ready);
#if defined(ENABLE_LOGGING)
const char *windows_error_str(DWORD error_code);
#endif

905
vendor/github.com/karalabe/hid/libusb/libusb/os/windows_usbdk.c generated vendored Normal file
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@ -0,0 +1,905 @@
/*
* windows UsbDk backend for libusb 1.0
* Copyright © 2014 Red Hat, Inc.
* Authors:
* Dmitry Fleytman <dmitry@daynix.com>
* Pavel Gurvich <pavel@daynix.com>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#include <config.h>
#if defined(USE_USBDK)
#include <windows.h>
#include <cfgmgr32.h>
#include <stdio.h>
#include "libusbi.h"
#include "windows_common.h"
#include "windows_nt_common.h"
#define ULONG64 uint64_t
#define PVOID64 uint64_t
typedef CONST WCHAR *PCWCHAR;
#define wcsncpy_s wcsncpy
#include "windows_usbdk.h"
#if !defined(STATUS_SUCCESS)
typedef LONG NTSTATUS;
#define STATUS_SUCCESS ((NTSTATUS)0x00000000L)
#endif
#if !defined(STATUS_CANCELLED)
#define STATUS_CANCELLED ((NTSTATUS)0xC0000120L)
#endif
#if !defined(STATUS_REQUEST_CANCELED)
#define STATUS_REQUEST_CANCELED ((NTSTATUS)0xC0000703L)
#endif
#if !defined(USBD_SUCCESS)
typedef int32_t USBD_STATUS;
#define USBD_SUCCESS(Status) ((USBD_STATUS) (Status) >= 0)
#define USBD_PENDING(Status) ((ULONG) (Status) >> 30 == 1)
#define USBD_ERROR(Status) ((USBD_STATUS) (Status) < 0)
#define USBD_STATUS_STALL_PID ((USBD_STATUS) 0xc0000004)
#define USBD_STATUS_ENDPOINT_HALTED ((USBD_STATUS) 0xc0000030)
#define USBD_STATUS_BAD_START_FRAME ((USBD_STATUS) 0xc0000a00)
#define USBD_STATUS_TIMEOUT ((USBD_STATUS) 0xc0006000)
#define USBD_STATUS_CANCELED ((USBD_STATUS) 0xc0010000)
#endif
static int concurrent_usage = -1;
struct usbdk_device_priv {
USB_DK_DEVICE_INFO info;
PUSB_CONFIGURATION_DESCRIPTOR *config_descriptors;
HANDLE redirector_handle;
uint8_t active_configuration;
};
struct usbdk_transfer_priv {
USB_DK_TRANSFER_REQUEST request;
struct winfd pollable_fd;
PULONG64 IsochronousPacketsArray;
PUSB_DK_ISO_TRANSFER_RESULT IsochronousResultsArray;
};
static inline struct usbdk_device_priv *_usbdk_device_priv(struct libusb_device *dev)
{
return (struct usbdk_device_priv *)dev->os_priv;
}
static inline struct usbdk_transfer_priv *_usbdk_transfer_priv(struct usbi_transfer *itransfer)
{
return (struct usbdk_transfer_priv *)usbi_transfer_get_os_priv(itransfer);
}
static struct {
HMODULE module;
USBDK_GET_DEVICES_LIST GetDevicesList;
USBDK_RELEASE_DEVICES_LIST ReleaseDevicesList;
USBDK_START_REDIRECT StartRedirect;
USBDK_STOP_REDIRECT StopRedirect;
USBDK_GET_CONFIGURATION_DESCRIPTOR GetConfigurationDescriptor;
USBDK_RELEASE_CONFIGURATION_DESCRIPTOR ReleaseConfigurationDescriptor;
USBDK_READ_PIPE ReadPipe;
USBDK_WRITE_PIPE WritePipe;
USBDK_ABORT_PIPE AbortPipe;
USBDK_RESET_PIPE ResetPipe;
USBDK_SET_ALTSETTING SetAltsetting;
USBDK_RESET_DEVICE ResetDevice;
USBDK_GET_REDIRECTOR_SYSTEM_HANDLE GetRedirectorSystemHandle;
} usbdk_helper;
static FARPROC get_usbdk_proc_addr(struct libusb_context *ctx, LPCSTR api_name)
{
FARPROC api_ptr = GetProcAddress(usbdk_helper.module, api_name);
if (api_ptr == NULL)
usbi_err(ctx, "UsbDkHelper API %s not found, error %d", api_name, GetLastError());
return api_ptr;
}
static void unload_usbdk_helper_dll(void)
{
if (usbdk_helper.module != NULL) {
FreeLibrary(usbdk_helper.module);
usbdk_helper.module = NULL;
}
}
static int load_usbdk_helper_dll(struct libusb_context *ctx)
{
usbdk_helper.module = LoadLibraryA("UsbDkHelper");
if (usbdk_helper.module == NULL) {
usbi_err(ctx, "Failed to load UsbDkHelper.dll, error %d", GetLastError());
return LIBUSB_ERROR_NOT_FOUND;
}
usbdk_helper.GetDevicesList = (USBDK_GET_DEVICES_LIST)get_usbdk_proc_addr(ctx, "UsbDk_GetDevicesList");
if (usbdk_helper.GetDevicesList == NULL)
goto error_unload;
usbdk_helper.ReleaseDevicesList = (USBDK_RELEASE_DEVICES_LIST)get_usbdk_proc_addr(ctx, "UsbDk_ReleaseDevicesList");
if (usbdk_helper.ReleaseDevicesList == NULL)
goto error_unload;
usbdk_helper.StartRedirect = (USBDK_START_REDIRECT)get_usbdk_proc_addr(ctx, "UsbDk_StartRedirect");
if (usbdk_helper.StartRedirect == NULL)
goto error_unload;
usbdk_helper.StopRedirect = (USBDK_STOP_REDIRECT)get_usbdk_proc_addr(ctx, "UsbDk_StopRedirect");
if (usbdk_helper.StopRedirect == NULL)
goto error_unload;
usbdk_helper.GetConfigurationDescriptor = (USBDK_GET_CONFIGURATION_DESCRIPTOR)get_usbdk_proc_addr(ctx, "UsbDk_GetConfigurationDescriptor");
if (usbdk_helper.GetConfigurationDescriptor == NULL)
goto error_unload;
usbdk_helper.ReleaseConfigurationDescriptor = (USBDK_RELEASE_CONFIGURATION_DESCRIPTOR)get_usbdk_proc_addr(ctx, "UsbDk_ReleaseConfigurationDescriptor");
if (usbdk_helper.ReleaseConfigurationDescriptor == NULL)
goto error_unload;
usbdk_helper.ReadPipe = (USBDK_READ_PIPE)get_usbdk_proc_addr(ctx, "UsbDk_ReadPipe");
if (usbdk_helper.ReadPipe == NULL)
goto error_unload;
usbdk_helper.WritePipe = (USBDK_WRITE_PIPE)get_usbdk_proc_addr(ctx, "UsbDk_WritePipe");
if (usbdk_helper.WritePipe == NULL)
goto error_unload;
usbdk_helper.AbortPipe = (USBDK_ABORT_PIPE)get_usbdk_proc_addr(ctx, "UsbDk_AbortPipe");
if (usbdk_helper.AbortPipe == NULL)
goto error_unload;
usbdk_helper.ResetPipe = (USBDK_RESET_PIPE)get_usbdk_proc_addr(ctx, "UsbDk_ResetPipe");
if (usbdk_helper.ResetPipe == NULL)
goto error_unload;
usbdk_helper.SetAltsetting = (USBDK_SET_ALTSETTING)get_usbdk_proc_addr(ctx, "UsbDk_SetAltsetting");
if (usbdk_helper.SetAltsetting == NULL)
goto error_unload;
usbdk_helper.ResetDevice = (USBDK_RESET_DEVICE)get_usbdk_proc_addr(ctx, "UsbDk_ResetDevice");
if (usbdk_helper.ResetDevice == NULL)
goto error_unload;
usbdk_helper.GetRedirectorSystemHandle = (USBDK_GET_REDIRECTOR_SYSTEM_HANDLE)get_usbdk_proc_addr(ctx, "UsbDk_GetRedirectorSystemHandle");
if (usbdk_helper.GetRedirectorSystemHandle == NULL)
goto error_unload;
return LIBUSB_SUCCESS;
error_unload:
FreeLibrary(usbdk_helper.module);
usbdk_helper.module = NULL;
return LIBUSB_ERROR_NOT_FOUND;
}
static int usbdk_init(struct libusb_context *ctx)
{
int r;
if (++concurrent_usage == 0) { // First init?
r = load_usbdk_helper_dll(ctx);
if (r)
goto init_exit;
init_polling();
r = windows_common_init(ctx);
if (r)
goto init_exit;
}
// At this stage, either we went through full init successfully, or didn't need to
r = LIBUSB_SUCCESS;
init_exit:
if (!concurrent_usage && r != LIBUSB_SUCCESS) { // First init failed?
exit_polling();
windows_common_exit();
unload_usbdk_helper_dll();
}
if (r != LIBUSB_SUCCESS)
--concurrent_usage; // Not expected to call libusb_exit if we failed.
return r;
}
static int usbdk_get_session_id_for_device(struct libusb_context *ctx,
PUSB_DK_DEVICE_ID id, unsigned long *session_id)
{
char dev_identity[ARRAYSIZE(id->DeviceID) + ARRAYSIZE(id->InstanceID)];
if (sprintf(dev_identity, "%S%S", id->DeviceID, id->InstanceID) == -1) {
usbi_warn(ctx, "cannot form device identity", id->DeviceID);
return LIBUSB_ERROR_NOT_SUPPORTED;
}
*session_id = htab_hash(dev_identity);
return LIBUSB_SUCCESS;
}
static void usbdk_release_config_descriptors(struct usbdk_device_priv *p, uint8_t count)
{
uint8_t i;
for (i = 0; i < count; i++)
usbdk_helper.ReleaseConfigurationDescriptor(p->config_descriptors[i]);
free(p->config_descriptors);
p->config_descriptors = NULL;
}
static int usbdk_cache_config_descriptors(struct libusb_context *ctx,
struct usbdk_device_priv *p, PUSB_DK_DEVICE_INFO info)
{
uint8_t i;
USB_DK_CONFIG_DESCRIPTOR_REQUEST Request;
Request.ID = info->ID;
p->config_descriptors = calloc(info->DeviceDescriptor.bNumConfigurations, sizeof(PUSB_CONFIGURATION_DESCRIPTOR));
if (p->config_descriptors == NULL) {
usbi_err(ctx, "failed to allocate configuration descriptors holder");
return LIBUSB_ERROR_NO_MEM;
}
for (i = 0; i < info->DeviceDescriptor.bNumConfigurations; i++) {
ULONG Length;
Request.Index = i;
if (!usbdk_helper.GetConfigurationDescriptor(&Request, &p->config_descriptors[i], &Length)) {
usbi_err(ctx, "failed to retrieve configuration descriptors");
usbdk_release_config_descriptors(p, i);
return LIBUSB_ERROR_OTHER;
}
}
return LIBUSB_SUCCESS;
}
static inline int usbdk_device_priv_init(struct libusb_context *ctx, struct libusb_device *dev, PUSB_DK_DEVICE_INFO info)
{
struct usbdk_device_priv *p = _usbdk_device_priv(dev);
p->info = *info;
p->active_configuration = 0;
return usbdk_cache_config_descriptors(ctx, p, info);
}
static void usbdk_device_init(libusb_device *dev, PUSB_DK_DEVICE_INFO info)
{
dev->bus_number = (uint8_t)info->FilterID;
dev->port_number = (uint8_t)info->Port;
dev->parent_dev = NULL;
//Addresses in libusb are 1-based
dev->device_address = (uint8_t)(info->Port + 1);
dev->num_configurations = info->DeviceDescriptor.bNumConfigurations;
dev->device_descriptor = info->DeviceDescriptor;
switch (info->Speed) {
case LowSpeed:
dev->speed = LIBUSB_SPEED_LOW;
break;
case FullSpeed:
dev->speed = LIBUSB_SPEED_FULL;
break;
case HighSpeed:
dev->speed = LIBUSB_SPEED_HIGH;
break;
case SuperSpeed:
dev->speed = LIBUSB_SPEED_SUPER;
break;
case NoSpeed:
default:
dev->speed = LIBUSB_SPEED_UNKNOWN;
break;
}
}
static int usbdk_get_device_list(struct libusb_context *ctx, struct discovered_devs **_discdevs)
{
int r = LIBUSB_SUCCESS;
ULONG i;
struct discovered_devs *discdevs = NULL;
ULONG dev_number;
PUSB_DK_DEVICE_INFO devices;
if(!usbdk_helper.GetDevicesList(&devices, &dev_number))
return LIBUSB_ERROR_OTHER;
for (i = 0; i < dev_number; i++) {
unsigned long session_id;
struct libusb_device *dev = NULL;
if (usbdk_get_session_id_for_device(ctx, &devices[i].ID, &session_id))
continue;
dev = usbi_get_device_by_session_id(ctx, session_id);
if (dev == NULL) {
dev = usbi_alloc_device(ctx, session_id);
if (dev == NULL) {
usbi_err(ctx, "failed to allocate a new device structure");
continue;
}
usbdk_device_init(dev, &devices[i]);
if (usbdk_device_priv_init(ctx, dev, &devices[i]) != LIBUSB_SUCCESS) {
libusb_unref_device(dev);
continue;
}
}
discdevs = discovered_devs_append(*_discdevs, dev);
libusb_unref_device(dev);
if (!discdevs) {
usbi_err(ctx, "cannot append new device to list");
r = LIBUSB_ERROR_NO_MEM;
goto func_exit;
}
*_discdevs = discdevs;
}
func_exit:
usbdk_helper.ReleaseDevicesList(devices);
return r;
}
static void usbdk_exit(void)
{
if (--concurrent_usage < 0) {
windows_common_exit();
exit_polling();
unload_usbdk_helper_dll();
}
}
static int usbdk_get_device_descriptor(struct libusb_device *dev, unsigned char *buffer, int *host_endian)
{
struct usbdk_device_priv *priv = _usbdk_device_priv(dev);
memcpy(buffer, &priv->info.DeviceDescriptor, DEVICE_DESC_LENGTH);
*host_endian = 0;
return LIBUSB_SUCCESS;
}
static int usbdk_get_config_descriptor(struct libusb_device *dev, uint8_t config_index, unsigned char *buffer, size_t len, int *host_endian)
{
struct usbdk_device_priv *priv = _usbdk_device_priv(dev);
PUSB_CONFIGURATION_DESCRIPTOR config_header;
size_t size;
if (config_index >= dev->num_configurations)
return LIBUSB_ERROR_INVALID_PARAM;
config_header = (PUSB_CONFIGURATION_DESCRIPTOR)priv->config_descriptors[config_index];
size = min(config_header->wTotalLength, len);
memcpy(buffer, config_header, size);
*host_endian = 0;
return (int)size;
}
static inline int usbdk_get_active_config_descriptor(struct libusb_device *dev, unsigned char *buffer, size_t len, int *host_endian)
{
return usbdk_get_config_descriptor(dev, _usbdk_device_priv(dev)->active_configuration,
buffer, len, host_endian);
}
static int usbdk_open(struct libusb_device_handle *dev_handle)
{
struct usbdk_device_priv *priv = _usbdk_device_priv(dev_handle->dev);
priv->redirector_handle = usbdk_helper.StartRedirect(&priv->info.ID);
if (priv->redirector_handle == INVALID_HANDLE_VALUE) {
usbi_err(DEVICE_CTX(dev_handle->dev), "Redirector startup failed");
return LIBUSB_ERROR_OTHER;
}
return LIBUSB_SUCCESS;
}
static void usbdk_close(struct libusb_device_handle *dev_handle)
{
struct usbdk_device_priv *priv = _usbdk_device_priv(dev_handle->dev);
if (!usbdk_helper.StopRedirect(priv->redirector_handle)) {
struct libusb_context *ctx = DEVICE_CTX(dev_handle->dev);
usbi_err(ctx, "Redirector shutdown failed");
}
}
static int usbdk_get_configuration(struct libusb_device_handle *dev_handle, int *config)
{
*config = _usbdk_device_priv(dev_handle->dev)->active_configuration;
return LIBUSB_SUCCESS;
}
static int usbdk_set_configuration(struct libusb_device_handle *dev_handle, int config)
{
UNUSED(dev_handle);
UNUSED(config);
return LIBUSB_SUCCESS;
}
static int usbdk_claim_interface(struct libusb_device_handle *dev_handle, int iface)
{
UNUSED(dev_handle);
UNUSED(iface);
return LIBUSB_SUCCESS;
}
static int usbdk_set_interface_altsetting(struct libusb_device_handle *dev_handle, int iface, int altsetting)
{
struct libusb_context *ctx = DEVICE_CTX(dev_handle->dev);
struct usbdk_device_priv *priv = _usbdk_device_priv(dev_handle->dev);
if (!usbdk_helper.SetAltsetting(priv->redirector_handle, iface, altsetting)) {
usbi_err(ctx, "SetAltsetting failed: %s", windows_error_str(0));
return LIBUSB_ERROR_NO_DEVICE;
}
return LIBUSB_SUCCESS;
}
static int usbdk_release_interface(struct libusb_device_handle *dev_handle, int iface)
{
UNUSED(dev_handle);
UNUSED(iface);
return LIBUSB_SUCCESS;
}
static int usbdk_clear_halt(struct libusb_device_handle *dev_handle, unsigned char endpoint)
{
struct libusb_context *ctx = DEVICE_CTX(dev_handle->dev);
struct usbdk_device_priv *priv = _usbdk_device_priv(dev_handle->dev);
if (!usbdk_helper.ResetPipe(priv->redirector_handle, endpoint)) {
usbi_err(ctx, "ResetPipe failed: %s", windows_error_str(0));
return LIBUSB_ERROR_NO_DEVICE;
}
return LIBUSB_SUCCESS;
}
static int usbdk_reset_device(struct libusb_device_handle *dev_handle)
{
struct libusb_context *ctx = DEVICE_CTX(dev_handle->dev);
struct usbdk_device_priv *priv = _usbdk_device_priv(dev_handle->dev);
if (!usbdk_helper.ResetDevice(priv->redirector_handle)) {
usbi_err(ctx, "ResetDevice failed: %s", windows_error_str(0));
return LIBUSB_ERROR_NO_DEVICE;
}
return LIBUSB_SUCCESS;
}
static int usbdk_kernel_driver_active(struct libusb_device_handle *dev_handle, int iface)
{
UNUSED(dev_handle);
UNUSED(iface);
return LIBUSB_ERROR_NOT_SUPPORTED;
}
static int usbdk_attach_kernel_driver(struct libusb_device_handle *dev_handle, int iface)
{
UNUSED(dev_handle);
UNUSED(iface);
return LIBUSB_ERROR_NOT_SUPPORTED;
}
static int usbdk_detach_kernel_driver(struct libusb_device_handle *dev_handle, int iface)
{
UNUSED(dev_handle);
UNUSED(iface);
return LIBUSB_ERROR_NOT_SUPPORTED;
}
static void usbdk_destroy_device(struct libusb_device *dev)
{
struct usbdk_device_priv* p = _usbdk_device_priv(dev);
if (p->config_descriptors != NULL)
usbdk_release_config_descriptors(p, p->info.DeviceDescriptor.bNumConfigurations);
}
void windows_clear_transfer_priv(struct usbi_transfer *itransfer)
{
struct usbdk_transfer_priv *transfer_priv = _usbdk_transfer_priv(itransfer);
struct libusb_transfer *transfer = USBI_TRANSFER_TO_LIBUSB_TRANSFER(itransfer);
usbi_free_fd(&transfer_priv->pollable_fd);
if (transfer->type == LIBUSB_TRANSFER_TYPE_ISOCHRONOUS) {
safe_free(transfer_priv->IsochronousPacketsArray);
safe_free(transfer_priv->IsochronousResultsArray);
}
}
static int usbdk_do_control_transfer(struct usbi_transfer *itransfer)
{
struct libusb_transfer *transfer = USBI_TRANSFER_TO_LIBUSB_TRANSFER(itransfer);
struct usbdk_device_priv *priv = _usbdk_device_priv(transfer->dev_handle->dev);
struct usbdk_transfer_priv *transfer_priv = _usbdk_transfer_priv(itransfer);
struct libusb_context *ctx = DEVICE_CTX(transfer->dev_handle->dev);
struct winfd wfd;
ULONG Length;
TransferResult transResult;
HANDLE sysHandle;
sysHandle = usbdk_helper.GetRedirectorSystemHandle(priv->redirector_handle);
wfd = usbi_create_fd(sysHandle, RW_READ, NULL, NULL);
// Always use the handle returned from usbi_create_fd (wfd.handle)
if (wfd.fd < 0)
return LIBUSB_ERROR_NO_MEM;
transfer_priv->request.Buffer = (PVOID64)(uintptr_t)transfer->buffer;
transfer_priv->request.BufferLength = transfer->length;
transfer_priv->request.TransferType = ControlTransferType;
transfer_priv->pollable_fd = INVALID_WINFD;
Length = (ULONG)transfer->length;
if (IS_XFERIN(transfer))
transResult = usbdk_helper.ReadPipe(priv->redirector_handle, &transfer_priv->request, wfd.overlapped);
else
transResult = usbdk_helper.WritePipe(priv->redirector_handle, &transfer_priv->request, wfd.overlapped);
switch (transResult) {
case TransferSuccess:
wfd.overlapped->Internal = STATUS_COMPLETED_SYNCHRONOUSLY;
wfd.overlapped->InternalHigh = (DWORD)Length;
break;
case TransferSuccessAsync:
break;
case TransferFailure:
usbi_err(ctx, "ControlTransfer failed: %s", windows_error_str(0));
usbi_free_fd(&wfd);
return LIBUSB_ERROR_IO;
}
// Use priv_transfer to store data needed for async polling
transfer_priv->pollable_fd = wfd;
usbi_add_pollfd(ctx, transfer_priv->pollable_fd.fd, POLLIN);
return LIBUSB_SUCCESS;
}
static int usbdk_do_bulk_transfer(struct usbi_transfer *itransfer)
{
struct libusb_transfer *transfer = USBI_TRANSFER_TO_LIBUSB_TRANSFER(itransfer);
struct usbdk_device_priv *priv = _usbdk_device_priv(transfer->dev_handle->dev);
struct usbdk_transfer_priv *transfer_priv = _usbdk_transfer_priv(itransfer);
struct libusb_context *ctx = DEVICE_CTX(transfer->dev_handle->dev);
struct winfd wfd;
TransferResult transferRes;
HANDLE sysHandle;
transfer_priv->request.Buffer = (PVOID64)(uintptr_t)transfer->buffer;
transfer_priv->request.BufferLength = transfer->length;
transfer_priv->request.EndpointAddress = transfer->endpoint;
switch (transfer->type) {
case LIBUSB_TRANSFER_TYPE_BULK:
transfer_priv->request.TransferType = BulkTransferType;
break;
case LIBUSB_TRANSFER_TYPE_INTERRUPT:
transfer_priv->request.TransferType = IntertuptTransferType;
break;
default:
usbi_err(ctx, "Wrong transfer type (%d) in usbdk_do_bulk_transfer. %s", transfer->type, windows_error_str(0));
return LIBUSB_ERROR_INVALID_PARAM;
}
transfer_priv->pollable_fd = INVALID_WINFD;
sysHandle = usbdk_helper.GetRedirectorSystemHandle(priv->redirector_handle);
wfd = usbi_create_fd(sysHandle, IS_XFERIN(transfer) ? RW_READ : RW_WRITE, NULL, NULL);
// Always use the handle returned from usbi_create_fd (wfd.handle)
if (wfd.fd < 0)
return LIBUSB_ERROR_NO_MEM;
if (IS_XFERIN(transfer))
transferRes = usbdk_helper.ReadPipe(priv->redirector_handle, &transfer_priv->request, wfd.overlapped);
else
transferRes = usbdk_helper.WritePipe(priv->redirector_handle, &transfer_priv->request, wfd.overlapped);
switch (transferRes) {
case TransferSuccess:
wfd.overlapped->Internal = STATUS_COMPLETED_SYNCHRONOUSLY;
break;
case TransferSuccessAsync:
break;
case TransferFailure:
usbi_err(ctx, "ReadPipe/WritePipe failed: %s", windows_error_str(0));
usbi_free_fd(&wfd);
return LIBUSB_ERROR_IO;
}
transfer_priv->pollable_fd = wfd;
usbi_add_pollfd(ctx, transfer_priv->pollable_fd.fd, IS_XFERIN(transfer) ? POLLIN : POLLOUT);
return LIBUSB_SUCCESS;
}
static int usbdk_do_iso_transfer(struct usbi_transfer *itransfer)
{
struct libusb_transfer *transfer = USBI_TRANSFER_TO_LIBUSB_TRANSFER(itransfer);
struct usbdk_device_priv *priv = _usbdk_device_priv(transfer->dev_handle->dev);
struct usbdk_transfer_priv *transfer_priv = _usbdk_transfer_priv(itransfer);
struct libusb_context *ctx = DEVICE_CTX(transfer->dev_handle->dev);
struct winfd wfd;
TransferResult transferRes;
int i;
HANDLE sysHandle;
transfer_priv->request.Buffer = (PVOID64)(uintptr_t)transfer->buffer;
transfer_priv->request.BufferLength = transfer->length;
transfer_priv->request.EndpointAddress = transfer->endpoint;
transfer_priv->request.TransferType = IsochronousTransferType;
transfer_priv->request.IsochronousPacketsArraySize = transfer->num_iso_packets;
transfer_priv->IsochronousPacketsArray = malloc(transfer->num_iso_packets * sizeof(ULONG64));
transfer_priv->request.IsochronousPacketsArray = (PVOID64)(uintptr_t)transfer_priv->IsochronousPacketsArray;
if (!transfer_priv->IsochronousPacketsArray) {
usbi_err(ctx, "Allocation of IsochronousPacketsArray is failed, %s", windows_error_str(0));
return LIBUSB_ERROR_IO;
}
transfer_priv->IsochronousResultsArray = malloc(transfer->num_iso_packets * sizeof(USB_DK_ISO_TRANSFER_RESULT));
transfer_priv->request.Result.IsochronousResultsArray = (PVOID64)(uintptr_t)transfer_priv->IsochronousResultsArray;
if (!transfer_priv->IsochronousResultsArray) {
usbi_err(ctx, "Allocation of isochronousResultsArray is failed, %s", windows_error_str(0));
free(transfer_priv->IsochronousPacketsArray);
return LIBUSB_ERROR_IO;
}
for (i = 0; i < transfer->num_iso_packets; i++)
transfer_priv->IsochronousPacketsArray[i] = transfer->iso_packet_desc[i].length;
transfer_priv->pollable_fd = INVALID_WINFD;
sysHandle = usbdk_helper.GetRedirectorSystemHandle(priv->redirector_handle);
wfd = usbi_create_fd(sysHandle, IS_XFERIN(transfer) ? RW_READ : RW_WRITE, NULL, NULL);
// Always use the handle returned from usbi_create_fd (wfd.handle)
if (wfd.fd < 0) {
free(transfer_priv->IsochronousPacketsArray);
free(transfer_priv->IsochronousResultsArray);
return LIBUSB_ERROR_NO_MEM;
}
if (IS_XFERIN(transfer))
transferRes = usbdk_helper.ReadPipe(priv->redirector_handle, &transfer_priv->request, wfd.overlapped);
else
transferRes = usbdk_helper.WritePipe(priv->redirector_handle, &transfer_priv->request, wfd.overlapped);
switch (transferRes) {
case TransferSuccess:
wfd.overlapped->Internal = STATUS_COMPLETED_SYNCHRONOUSLY;
break;
case TransferSuccessAsync:
break;
case TransferFailure:
usbi_err(ctx, "ReadPipe/WritePipe failed: %s", windows_error_str(0));
usbi_free_fd(&wfd);
free(transfer_priv->IsochronousPacketsArray);
free(transfer_priv->IsochronousResultsArray);
return LIBUSB_ERROR_IO;
}
transfer_priv->pollable_fd = wfd;
usbi_add_pollfd(ctx, transfer_priv->pollable_fd.fd, IS_XFERIN(transfer) ? POLLIN : POLLOUT);
return LIBUSB_SUCCESS;
}
static int usbdk_submit_transfer(struct usbi_transfer *itransfer)
{
struct libusb_transfer *transfer = USBI_TRANSFER_TO_LIBUSB_TRANSFER(itransfer);
switch (transfer->type) {
case LIBUSB_TRANSFER_TYPE_CONTROL:
return usbdk_do_control_transfer(itransfer);
case LIBUSB_TRANSFER_TYPE_BULK:
case LIBUSB_TRANSFER_TYPE_INTERRUPT:
if (IS_XFEROUT(transfer) && (transfer->flags & LIBUSB_TRANSFER_ADD_ZERO_PACKET))
return LIBUSB_ERROR_NOT_SUPPORTED; //TODO: Check whether we can support this in UsbDk
else
return usbdk_do_bulk_transfer(itransfer);
case LIBUSB_TRANSFER_TYPE_ISOCHRONOUS:
return usbdk_do_iso_transfer(itransfer);
default:
usbi_err(TRANSFER_CTX(transfer), "unknown endpoint type %d", transfer->type);
return LIBUSB_ERROR_INVALID_PARAM;
}
}
static int usbdk_abort_transfers(struct usbi_transfer *itransfer)
{
struct libusb_transfer *transfer = USBI_TRANSFER_TO_LIBUSB_TRANSFER(itransfer);
struct libusb_context *ctx = DEVICE_CTX(transfer->dev_handle->dev);
struct usbdk_device_priv *priv = _usbdk_device_priv(transfer->dev_handle->dev);
if (!usbdk_helper.AbortPipe(priv->redirector_handle, transfer->endpoint)) {
usbi_err(ctx, "AbortPipe failed: %s", windows_error_str(0));
return LIBUSB_ERROR_NO_DEVICE;
}
return LIBUSB_SUCCESS;
}
static int usbdk_cancel_transfer(struct usbi_transfer *itransfer)
{
struct libusb_transfer *transfer = USBI_TRANSFER_TO_LIBUSB_TRANSFER(itransfer);
switch (transfer->type) {
case LIBUSB_TRANSFER_TYPE_CONTROL:
// Control transfers cancelled by IoCancelXXX() API
// No special treatment needed
return LIBUSB_SUCCESS;
case LIBUSB_TRANSFER_TYPE_BULK:
case LIBUSB_TRANSFER_TYPE_INTERRUPT:
case LIBUSB_TRANSFER_TYPE_ISOCHRONOUS:
return usbdk_abort_transfers(itransfer);
default:
usbi_err(ITRANSFER_CTX(itransfer), "unknown endpoint type %d", transfer->type);
return LIBUSB_ERROR_INVALID_PARAM;
}
}
int windows_copy_transfer_data(struct usbi_transfer *itransfer, uint32_t io_size)
{
itransfer->transferred += io_size;
return LIBUSB_TRANSFER_COMPLETED;
}
struct winfd *windows_get_fd(struct usbi_transfer *transfer)
{
struct usbdk_transfer_priv *transfer_priv = _usbdk_transfer_priv(transfer);
return &transfer_priv->pollable_fd;
}
static DWORD usbdk_translate_usbd_status(USBD_STATUS UsbdStatus)
{
if (USBD_SUCCESS(UsbdStatus))
return NO_ERROR;
switch (UsbdStatus) {
case USBD_STATUS_STALL_PID:
case USBD_STATUS_ENDPOINT_HALTED:
case USBD_STATUS_BAD_START_FRAME:
return ERROR_GEN_FAILURE;
case USBD_STATUS_TIMEOUT:
return ERROR_SEM_TIMEOUT;
case USBD_STATUS_CANCELED:
return ERROR_OPERATION_ABORTED;
default:
return ERROR_FUNCTION_FAILED;
}
}
void windows_get_overlapped_result(struct usbi_transfer *transfer, struct winfd *pollable_fd, DWORD *io_result, DWORD *io_size)
{
if (HasOverlappedIoCompletedSync(pollable_fd->overlapped) // Handle async requests that completed synchronously first
|| GetOverlappedResult(pollable_fd->handle, pollable_fd->overlapped, io_size, false)) { // Regular async overlapped
struct libusb_transfer *ltransfer = USBI_TRANSFER_TO_LIBUSB_TRANSFER(transfer);
struct usbdk_transfer_priv *transfer_priv = _usbdk_transfer_priv(transfer);
if (ltransfer->type == LIBUSB_TRANSFER_TYPE_ISOCHRONOUS) {
int i;
for (i = 0; i < transfer_priv->request.IsochronousPacketsArraySize; i++) {
struct libusb_iso_packet_descriptor *lib_desc = &ltransfer->iso_packet_desc[i];
switch (transfer_priv->IsochronousResultsArray[i].TransferResult) {
case STATUS_SUCCESS:
case STATUS_CANCELLED:
case STATUS_REQUEST_CANCELED:
lib_desc->status = LIBUSB_TRANSFER_COMPLETED; // == ERROR_SUCCESS
break;
default:
lib_desc->status = LIBUSB_TRANSFER_ERROR; // ERROR_UNKNOWN_EXCEPTION;
break;
}
lib_desc->actual_length = (unsigned int)transfer_priv->IsochronousResultsArray[i].ActualLength;
}
}
*io_size = (DWORD) transfer_priv->request.Result.GenResult.BytesTransferred;
*io_result = usbdk_translate_usbd_status((USBD_STATUS) transfer_priv->request.Result.GenResult.UsbdStatus);
}
else {
*io_result = GetLastError();
}
}
static int usbdk_clock_gettime(int clk_id, struct timespec *tp)
{
return windows_clock_gettime(clk_id, tp);
}
const struct usbi_os_backend usbdk_backend = {
"Windows",
USBI_CAP_HAS_HID_ACCESS,
usbdk_init,
usbdk_exit,
usbdk_get_device_list,
NULL,
usbdk_open,
usbdk_close,
usbdk_get_device_descriptor,
usbdk_get_active_config_descriptor,
usbdk_get_config_descriptor,
NULL,
usbdk_get_configuration,
usbdk_set_configuration,
usbdk_claim_interface,
usbdk_release_interface,
usbdk_set_interface_altsetting,
usbdk_clear_halt,
usbdk_reset_device,
NULL,
NULL,
NULL, // dev_mem_alloc()
NULL, // dev_mem_free()
usbdk_kernel_driver_active,
usbdk_detach_kernel_driver,
usbdk_attach_kernel_driver,
usbdk_destroy_device,
usbdk_submit_transfer,
usbdk_cancel_transfer,
windows_clear_transfer_priv,
windows_handle_events,
NULL,
usbdk_clock_gettime,
#if defined(USBI_TIMERFD_AVAILABLE)
NULL,
#endif
sizeof(struct usbdk_device_priv),
0,
sizeof(struct usbdk_transfer_priv),
};
#endif /* USE_USBDK */

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/*
* windows UsbDk backend for libusb 1.0
* Copyright © 2014 Red Hat, Inc.
* Authors:
* Dmitry Fleytman <dmitry@daynix.com>
* Pavel Gurvich <pavel@daynix.com>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#pragma once
typedef struct tag_USB_DK_DEVICE_ID {
WCHAR DeviceID[MAX_DEVICE_ID_LEN];
WCHAR InstanceID[MAX_DEVICE_ID_LEN];
} USB_DK_DEVICE_ID, *PUSB_DK_DEVICE_ID;
static inline void UsbDkFillIDStruct(USB_DK_DEVICE_ID *ID, PCWCHAR DeviceID, PCWCHAR InstanceID)
{
wcsncpy_s(ID->DeviceID, DeviceID, MAX_DEVICE_ID_LEN);
wcsncpy_s(ID->InstanceID, InstanceID, MAX_DEVICE_ID_LEN);
}
typedef struct tag_USB_DK_DEVICE_INFO {
USB_DK_DEVICE_ID ID;
ULONG64 FilterID;
ULONG64 Port;
ULONG64 Speed;
USB_DEVICE_DESCRIPTOR DeviceDescriptor;
} USB_DK_DEVICE_INFO, *PUSB_DK_DEVICE_INFO;
typedef struct tag_USB_DK_CONFIG_DESCRIPTOR_REQUEST {
USB_DK_DEVICE_ID ID;
ULONG64 Index;
} USB_DK_CONFIG_DESCRIPTOR_REQUEST, *PUSB_DK_CONFIG_DESCRIPTOR_REQUEST;
typedef struct tag_USB_DK_ISO_TRANSFER_RESULT {
ULONG64 ActualLength;
ULONG64 TransferResult;
} USB_DK_ISO_TRANSFER_RESULT, *PUSB_DK_ISO_TRANSFER_RESULT;
typedef struct tag_USB_DK_GEN_TRANSFER_RESULT {
ULONG64 BytesTransferred;
ULONG64 UsbdStatus; // USBD_STATUS code
} USB_DK_GEN_TRANSFER_RESULT, *PUSB_DK_GEN_TRANSFER_RESULT;
typedef struct tag_USB_DK_TRANSFER_RESULT {
USB_DK_GEN_TRANSFER_RESULT GenResult;
PVOID64 IsochronousResultsArray; // array of USB_DK_ISO_TRANSFER_RESULT
} USB_DK_TRANSFER_RESULT, *PUSB_DK_TRANSFER_RESULT;
typedef struct tag_USB_DK_TRANSFER_REQUEST {
ULONG64 EndpointAddress;
PVOID64 Buffer;
ULONG64 BufferLength;
ULONG64 TransferType;
ULONG64 IsochronousPacketsArraySize;
PVOID64 IsochronousPacketsArray;
USB_DK_TRANSFER_RESULT Result;
} USB_DK_TRANSFER_REQUEST, *PUSB_DK_TRANSFER_REQUEST;
typedef enum {
TransferFailure = 0,
TransferSuccess,
TransferSuccessAsync
} TransferResult;
typedef enum {
NoSpeed = 0,
LowSpeed,
FullSpeed,
HighSpeed,
SuperSpeed
} USB_DK_DEVICE_SPEED;
typedef enum {
ControlTransferType,
BulkTransferType,
IntertuptTransferType,
IsochronousTransferType
} USB_DK_TRANSFER_TYPE;
typedef BOOL (__cdecl *USBDK_GET_DEVICES_LIST)(
PUSB_DK_DEVICE_INFO *DeviceInfo,
PULONG DeviceNumber
);
typedef void (__cdecl *USBDK_RELEASE_DEVICES_LIST)(
PUSB_DK_DEVICE_INFO DeviceInfo
);
typedef HANDLE (__cdecl *USBDK_START_REDIRECT)(
PUSB_DK_DEVICE_ID DeviceId
);
typedef BOOL (__cdecl *USBDK_STOP_REDIRECT)(
HANDLE DeviceHandle
);
typedef BOOL (__cdecl *USBDK_GET_CONFIGURATION_DESCRIPTOR)(
PUSB_DK_CONFIG_DESCRIPTOR_REQUEST Request,
PUSB_CONFIGURATION_DESCRIPTOR *Descriptor,
PULONG Length
);
typedef void (__cdecl *USBDK_RELEASE_CONFIGURATION_DESCRIPTOR)(
PUSB_CONFIGURATION_DESCRIPTOR Descriptor
);
typedef TransferResult (__cdecl *USBDK_WRITE_PIPE)(
HANDLE DeviceHandle,
PUSB_DK_TRANSFER_REQUEST Request,
LPOVERLAPPED lpOverlapped
);
typedef TransferResult (__cdecl *USBDK_READ_PIPE)(
HANDLE DeviceHandle,
PUSB_DK_TRANSFER_REQUEST Request,
LPOVERLAPPED lpOverlapped
);
typedef BOOL (__cdecl *USBDK_ABORT_PIPE)(
HANDLE DeviceHandle,
ULONG64 PipeAddress
);
typedef BOOL (__cdecl *USBDK_RESET_PIPE)(
HANDLE DeviceHandle,
ULONG64 PipeAddress
);
typedef BOOL (__cdecl *USBDK_SET_ALTSETTING)(
HANDLE DeviceHandle,
ULONG64 InterfaceIdx,
ULONG64 AltSettingIdx
);
typedef BOOL (__cdecl *USBDK_RESET_DEVICE)(
HANDLE DeviceHandle
);
typedef HANDLE (__cdecl *USBDK_GET_REDIRECTOR_SYSTEM_HANDLE)(
HANDLE DeviceHandle
);

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/*
* Windows backend for libusb 1.0
* Copyright © 2009-2012 Pete Batard <pete@akeo.ie>
* With contributions from Michael Plante, Orin Eman et al.
* Parts of this code adapted from libusb-win32-v1 by Stephan Meyer
* Major code testing contribution by Xiaofan Chen
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#pragma once
#include "windows_common.h"
#include "windows_nt_common.h"
#if defined(_MSC_VER)
// disable /W4 MSVC warnings that are benign
#pragma warning(disable:4100) // unreferenced formal parameter
#pragma warning(disable:4127) // conditional expression is constant
#pragma warning(disable:4201) // nameless struct/union
#pragma warning(disable:4214) // bit field types other than int
#pragma warning(disable:4996) // deprecated API calls
#pragma warning(disable:28159) // more deprecated API calls
#endif
// Missing from MSVC6 setupapi.h
#if !defined(SPDRP_ADDRESS)
#define SPDRP_ADDRESS 28
#endif
#if !defined(SPDRP_INSTALL_STATE)
#define SPDRP_INSTALL_STATE 34
#endif
#define MAX_CTRL_BUFFER_LENGTH 4096
#define MAX_USB_DEVICES 256
#define MAX_USB_STRING_LENGTH 128
#define MAX_HID_REPORT_SIZE 1024
#define MAX_HID_DESCRIPTOR_SIZE 256
#define MAX_GUID_STRING_LENGTH 40
#define MAX_PATH_LENGTH 128
#define MAX_KEY_LENGTH 256
#define LIST_SEPARATOR ';'
// Handle code for HID interface that have been claimed ("dibs")
#define INTERFACE_CLAIMED ((HANDLE)(intptr_t)0xD1B5)
// Additional return code for HID operations that completed synchronously
#define LIBUSB_COMPLETED (LIBUSB_SUCCESS + 1)
// http://msdn.microsoft.com/en-us/library/ff545978.aspx
// http://msdn.microsoft.com/en-us/library/ff545972.aspx
// http://msdn.microsoft.com/en-us/library/ff545982.aspx
#if !defined(GUID_DEVINTERFACE_USB_HOST_CONTROLLER)
const GUID GUID_DEVINTERFACE_USB_HOST_CONTROLLER = { 0x3ABF6F2D, 0x71C4, 0x462A, {0x8A, 0x92, 0x1E, 0x68, 0x61, 0xE6, 0xAF, 0x27} };
#endif
#if !defined(GUID_DEVINTERFACE_USB_DEVICE)
const GUID GUID_DEVINTERFACE_USB_DEVICE = { 0xA5DCBF10, 0x6530, 0x11D2, {0x90, 0x1F, 0x00, 0xC0, 0x4F, 0xB9, 0x51, 0xED} };
#endif
#if !defined(GUID_DEVINTERFACE_USB_HUB)
const GUID GUID_DEVINTERFACE_USB_HUB = { 0xF18A0E88, 0xC30C, 0x11D0, {0x88, 0x15, 0x00, 0xA0, 0xC9, 0x06, 0xBE, 0xD8} };
#endif
#if !defined(GUID_DEVINTERFACE_LIBUSB0_FILTER)
const GUID GUID_DEVINTERFACE_LIBUSB0_FILTER = { 0xF9F3FF14, 0xAE21, 0x48A0, {0x8A, 0x25, 0x80, 0x11, 0xA7, 0xA9, 0x31, 0xD9} };
#endif
/*
* Multiple USB API backend support
*/
#define USB_API_UNSUPPORTED 0
#define USB_API_HUB 1
#define USB_API_COMPOSITE 2
#define USB_API_WINUSBX 3
#define USB_API_HID 4
#define USB_API_MAX 5
// The following is used to indicate if the HID or composite extra props have already been set.
#define USB_API_SET (1 << USB_API_MAX)
// Sub-APIs for WinUSB-like driver APIs (WinUSB, libusbK, libusb-win32 through the libusbK DLL)
// Must have the same values as the KUSB_DRVID enum from libusbk.h
#define SUB_API_NOTSET -1
#define SUB_API_LIBUSBK 0
#define SUB_API_LIBUSB0 1
#define SUB_API_WINUSB 2
#define SUB_API_MAX 3
#define WINUSBX_DRV_NAMES {"libusbK", "libusb0", "WinUSB"}
struct windows_usb_api_backend {
const uint8_t id;
const char *designation;
const char **driver_name_list; // Driver name, without .sys, e.g. "usbccgp"
const uint8_t nb_driver_names;
int (*init)(int sub_api, struct libusb_context *ctx);
int (*exit)(int sub_api);
int (*open)(int sub_api, struct libusb_device_handle *dev_handle);
void (*close)(int sub_api, struct libusb_device_handle *dev_handle);
int (*configure_endpoints)(int sub_api, struct libusb_device_handle *dev_handle, int iface);
int (*claim_interface)(int sub_api, struct libusb_device_handle *dev_handle, int iface);
int (*set_interface_altsetting)(int sub_api, struct libusb_device_handle *dev_handle, int iface, int altsetting);
int (*release_interface)(int sub_api, struct libusb_device_handle *dev_handle, int iface);
int (*clear_halt)(int sub_api, struct libusb_device_handle *dev_handle, unsigned char endpoint);
int (*reset_device)(int sub_api, struct libusb_device_handle *dev_handle);
int (*submit_bulk_transfer)(int sub_api, struct usbi_transfer *itransfer);
int (*submit_iso_transfer)(int sub_api, struct usbi_transfer *itransfer);
int (*submit_control_transfer)(int sub_api, struct usbi_transfer *itransfer);
int (*abort_control)(int sub_api, struct usbi_transfer *itransfer);
int (*abort_transfers)(int sub_api, struct usbi_transfer *itransfer);
int (*copy_transfer_data)(int sub_api, struct usbi_transfer *itransfer, uint32_t io_size);
};
extern const struct windows_usb_api_backend usb_api_backend[USB_API_MAX];
#define PRINT_UNSUPPORTED_API(fname) \
usbi_dbg("unsupported API call for '" \
#fname "' (unrecognized device driver)"); \
return LIBUSB_ERROR_NOT_SUPPORTED;
/*
* private structures definition
* with inline pseudo constructors/destructors
*/
// TODO (v2+): move hid desc to libusb.h?
struct libusb_hid_descriptor {
uint8_t bLength;
uint8_t bDescriptorType;
uint16_t bcdHID;
uint8_t bCountryCode;
uint8_t bNumDescriptors;
uint8_t bClassDescriptorType;
uint16_t wClassDescriptorLength;
};
#define LIBUSB_DT_HID_SIZE 9
#define HID_MAX_CONFIG_DESC_SIZE (LIBUSB_DT_CONFIG_SIZE + LIBUSB_DT_INTERFACE_SIZE \
+ LIBUSB_DT_HID_SIZE + 2 * LIBUSB_DT_ENDPOINT_SIZE)
#define HID_MAX_REPORT_SIZE 1024
#define HID_IN_EP 0x81
#define HID_OUT_EP 0x02
#define LIBUSB_REQ_RECIPIENT(request_type) ((request_type) & 0x1F)
#define LIBUSB_REQ_TYPE(request_type) ((request_type) & (0x03 << 5))
#define LIBUSB_REQ_IN(request_type) ((request_type) & LIBUSB_ENDPOINT_IN)
#define LIBUSB_REQ_OUT(request_type) (!LIBUSB_REQ_IN(request_type))
// The following are used for HID reports IOCTLs
#define HID_CTL_CODE(id) \
CTL_CODE (FILE_DEVICE_KEYBOARD, (id), METHOD_NEITHER, FILE_ANY_ACCESS)
#define HID_BUFFER_CTL_CODE(id) \
CTL_CODE (FILE_DEVICE_KEYBOARD, (id), METHOD_BUFFERED, FILE_ANY_ACCESS)
#define HID_IN_CTL_CODE(id) \
CTL_CODE (FILE_DEVICE_KEYBOARD, (id), METHOD_IN_DIRECT, FILE_ANY_ACCESS)
#define HID_OUT_CTL_CODE(id) \
CTL_CODE (FILE_DEVICE_KEYBOARD, (id), METHOD_OUT_DIRECT, FILE_ANY_ACCESS)
#define IOCTL_HID_GET_FEATURE HID_OUT_CTL_CODE(100)
#define IOCTL_HID_GET_INPUT_REPORT HID_OUT_CTL_CODE(104)
#define IOCTL_HID_SET_FEATURE HID_IN_CTL_CODE(100)
#define IOCTL_HID_SET_OUTPUT_REPORT HID_IN_CTL_CODE(101)
enum libusb_hid_request_type {
HID_REQ_GET_REPORT = 0x01,
HID_REQ_GET_IDLE = 0x02,
HID_REQ_GET_PROTOCOL = 0x03,
HID_REQ_SET_REPORT = 0x09,
HID_REQ_SET_IDLE = 0x0A,
HID_REQ_SET_PROTOCOL = 0x0B
};
enum libusb_hid_report_type {
HID_REPORT_TYPE_INPUT = 0x01,
HID_REPORT_TYPE_OUTPUT = 0x02,
HID_REPORT_TYPE_FEATURE = 0x03
};
struct hid_device_priv {
uint16_t vid;
uint16_t pid;
uint8_t config;
uint8_t nb_interfaces;
bool uses_report_ids[3]; // input, ouptput, feature
uint16_t input_report_size;
uint16_t output_report_size;
uint16_t feature_report_size;
WCHAR string[3][MAX_USB_STRING_LENGTH];
uint8_t string_index[3]; // man, prod, ser
};
struct windows_device_priv {
uint8_t depth; // distance to HCD
uint8_t port; // port number on the hub
uint8_t active_config;
struct windows_usb_api_backend const *apib;
char *path; // device interface path
int sub_api; // for WinUSB-like APIs
struct {
char *path; // each interface needs a device interface path,
struct windows_usb_api_backend const *apib; // an API backend (multiple drivers support),
int sub_api;
int8_t nb_endpoints; // and a set of endpoint addresses (USB_MAXENDPOINTS)
uint8_t *endpoint;
bool restricted_functionality; // indicates if the interface functionality is restricted
// by Windows (eg. HID keyboards or mice cannot do R/W)
} usb_interface[USB_MAXINTERFACES];
struct hid_device_priv *hid;
USB_DEVICE_DESCRIPTOR dev_descriptor;
unsigned char **config_descriptor; // list of pointers to the cached config descriptors
};
static inline struct windows_device_priv *_device_priv(struct libusb_device *dev)
{
return (struct windows_device_priv *)dev->os_priv;
}
static inline struct windows_device_priv *windows_device_priv_init(struct libusb_device *dev)
{
struct windows_device_priv *p = _device_priv(dev);
int i;
p->apib = &usb_api_backend[USB_API_UNSUPPORTED];
p->sub_api = SUB_API_NOTSET;
for (i = 0; i < USB_MAXINTERFACES; i++) {
p->usb_interface[i].apib = &usb_api_backend[USB_API_UNSUPPORTED];
p->usb_interface[i].sub_api = SUB_API_NOTSET;
}
return p;
}
static inline void windows_device_priv_release(struct libusb_device *dev)
{
struct windows_device_priv *p = _device_priv(dev);
int i;
free(p->path);
if ((dev->num_configurations > 0) && (p->config_descriptor != NULL)) {
for (i = 0; i < dev->num_configurations; i++)
free(p->config_descriptor[i]);
}
free(p->config_descriptor);
free(p->hid);
for (i = 0; i < USB_MAXINTERFACES; i++) {
free(p->usb_interface[i].path);
free(p->usb_interface[i].endpoint);
}
}
struct interface_handle_t {
HANDLE dev_handle; // WinUSB needs an extra handle for the file
HANDLE api_handle; // used by the API to communicate with the device
};
struct windows_device_handle_priv {
int active_interface;
struct interface_handle_t interface_handle[USB_MAXINTERFACES];
int autoclaim_count[USB_MAXINTERFACES]; // For auto-release
};
static inline struct windows_device_handle_priv *_device_handle_priv(
struct libusb_device_handle *handle)
{
return (struct windows_device_handle_priv *)handle->os_priv;
}
// used for async polling functions
struct windows_transfer_priv {
struct winfd pollable_fd;
uint8_t interface_number;
uint8_t *hid_buffer; // 1 byte extended data buffer, required for HID
uint8_t *hid_dest; // transfer buffer destination, required for HID
size_t hid_expected_size;
};
// used to match a device driver (including filter drivers) against a supported API
struct driver_lookup {
char list[MAX_KEY_LENGTH + 1]; // REG_MULTI_SZ list of services (driver) names
const DWORD reg_prop; // SPDRP registry key to use to retrieve list
const char* designation; // internal designation (for debug output)
};
/* OLE32 dependency */
DLL_DECLARE_HANDLE(OLE32);
DLL_DECLARE_FUNC_PREFIXED(WINAPI, HRESULT, p, CLSIDFromString, (LPCOLESTR, LPCLSID));
/* Kernel32 dependencies */
DLL_DECLARE_HANDLE(Kernel32);
/* This call is only available from XP SP2 */
DLL_DECLARE_FUNC_PREFIXED(WINAPI, BOOL, p, IsWow64Process, (HANDLE, PBOOL));
/* SetupAPI dependencies */
DLL_DECLARE_HANDLE(SetupAPI);
DLL_DECLARE_FUNC_PREFIXED(WINAPI, HDEVINFO, p, SetupDiGetClassDevsA, (const GUID*, PCSTR, HWND, DWORD));
DLL_DECLARE_FUNC_PREFIXED(WINAPI, BOOL, p, SetupDiEnumDeviceInfo, (HDEVINFO, DWORD, PSP_DEVINFO_DATA));
DLL_DECLARE_FUNC_PREFIXED(WINAPI, BOOL, p, SetupDiEnumDeviceInterfaces, (HDEVINFO, PSP_DEVINFO_DATA,
const GUID*, DWORD, PSP_DEVICE_INTERFACE_DATA));
DLL_DECLARE_FUNC_PREFIXED(WINAPI, BOOL, p, SetupDiGetDeviceInterfaceDetailA, (HDEVINFO, PSP_DEVICE_INTERFACE_DATA,
PSP_DEVICE_INTERFACE_DETAIL_DATA_A, DWORD, PDWORD, PSP_DEVINFO_DATA));
DLL_DECLARE_FUNC_PREFIXED(WINAPI, BOOL, p, SetupDiDestroyDeviceInfoList, (HDEVINFO));
DLL_DECLARE_FUNC_PREFIXED(WINAPI, HKEY, p, SetupDiOpenDevRegKey, (HDEVINFO, PSP_DEVINFO_DATA, DWORD, DWORD, DWORD, REGSAM));
DLL_DECLARE_FUNC_PREFIXED(WINAPI, BOOL, p, SetupDiGetDeviceRegistryPropertyA, (HDEVINFO,
PSP_DEVINFO_DATA, DWORD, PDWORD, PBYTE, DWORD, PDWORD));
DLL_DECLARE_FUNC_PREFIXED(WINAPI, HKEY, p, SetupDiOpenDeviceInterfaceRegKey, (HDEVINFO, PSP_DEVICE_INTERFACE_DATA, DWORD, DWORD));
/* AdvAPI32 dependencies */
DLL_DECLARE_HANDLE(AdvAPI32);
DLL_DECLARE_FUNC_PREFIXED(WINAPI, LONG, p, RegQueryValueExW, (HKEY, LPCWSTR, LPDWORD, LPDWORD, LPBYTE, LPDWORD));
DLL_DECLARE_FUNC_PREFIXED(WINAPI, LONG, p, RegCloseKey, (HKEY));
/*
* Windows DDK API definitions. Most of it copied from MinGW's includes
*/
typedef DWORD DEVNODE, DEVINST;
typedef DEVNODE *PDEVNODE, *PDEVINST;
typedef DWORD RETURN_TYPE;
typedef RETURN_TYPE CONFIGRET;
#define CR_SUCCESS 0x00000000
#define CR_NO_SUCH_DEVNODE 0x0000000D
#define USB_DEVICE_DESCRIPTOR_TYPE LIBUSB_DT_DEVICE
#define USB_CONFIGURATION_DESCRIPTOR_TYPE LIBUSB_DT_CONFIG
#define USB_STRING_DESCRIPTOR_TYPE LIBUSB_DT_STRING
#define USB_INTERFACE_DESCRIPTOR_TYPE LIBUSB_DT_INTERFACE
#define USB_ENDPOINT_DESCRIPTOR_TYPE LIBUSB_DT_ENDPOINT
#define USB_REQUEST_GET_STATUS LIBUSB_REQUEST_GET_STATUS
#define USB_REQUEST_CLEAR_FEATURE LIBUSB_REQUEST_CLEAR_FEATURE
#define USB_REQUEST_SET_FEATURE LIBUSB_REQUEST_SET_FEATURE
#define USB_REQUEST_SET_ADDRESS LIBUSB_REQUEST_SET_ADDRESS
#define USB_REQUEST_GET_DESCRIPTOR LIBUSB_REQUEST_GET_DESCRIPTOR
#define USB_REQUEST_SET_DESCRIPTOR LIBUSB_REQUEST_SET_DESCRIPTOR
#define USB_REQUEST_GET_CONFIGURATION LIBUSB_REQUEST_GET_CONFIGURATION
#define USB_REQUEST_SET_CONFIGURATION LIBUSB_REQUEST_SET_CONFIGURATION
#define USB_REQUEST_GET_INTERFACE LIBUSB_REQUEST_GET_INTERFACE
#define USB_REQUEST_SET_INTERFACE LIBUSB_REQUEST_SET_INTERFACE
#define USB_REQUEST_SYNC_FRAME LIBUSB_REQUEST_SYNCH_FRAME
#define USB_GET_NODE_INFORMATION 258
#define USB_GET_DESCRIPTOR_FROM_NODE_CONNECTION 260
#define USB_GET_NODE_CONNECTION_NAME 261
#define USB_GET_HUB_CAPABILITIES 271
#if !defined(USB_GET_NODE_CONNECTION_INFORMATION_EX)
#define USB_GET_NODE_CONNECTION_INFORMATION_EX 274
#endif
#if !defined(USB_GET_HUB_CAPABILITIES_EX)
#define USB_GET_HUB_CAPABILITIES_EX 276
#endif
#if !defined(USB_GET_NODE_CONNECTION_INFORMATION_EX_V2)
#define USB_GET_NODE_CONNECTION_INFORMATION_EX_V2 279
#endif
#ifndef METHOD_BUFFERED
#define METHOD_BUFFERED 0
#endif
#ifndef FILE_ANY_ACCESS
#define FILE_ANY_ACCESS 0x00000000
#endif
#ifndef FILE_DEVICE_UNKNOWN
#define FILE_DEVICE_UNKNOWN 0x00000022
#endif
#ifndef FILE_DEVICE_USB
#define FILE_DEVICE_USB FILE_DEVICE_UNKNOWN
#endif
#ifndef CTL_CODE
#define CTL_CODE(DeviceType, Function, Method, Access) \
(((DeviceType) << 16) | ((Access) << 14) | ((Function) << 2) | (Method))
#endif
typedef enum USB_CONNECTION_STATUS {
NoDeviceConnected,
DeviceConnected,
DeviceFailedEnumeration,
DeviceGeneralFailure,
DeviceCausedOvercurrent,
DeviceNotEnoughPower,
DeviceNotEnoughBandwidth,
DeviceHubNestedTooDeeply,
DeviceInLegacyHub
} USB_CONNECTION_STATUS, *PUSB_CONNECTION_STATUS;
typedef enum USB_HUB_NODE {
UsbHub,
UsbMIParent
} USB_HUB_NODE;
/* Cfgmgr32.dll interface */
DLL_DECLARE_HANDLE(Cfgmgr32);
DLL_DECLARE_FUNC(WINAPI, CONFIGRET, CM_Get_Parent, (PDEVINST, DEVINST, ULONG));
DLL_DECLARE_FUNC(WINAPI, CONFIGRET, CM_Get_Child, (PDEVINST, DEVINST, ULONG));
DLL_DECLARE_FUNC(WINAPI, CONFIGRET, CM_Get_Sibling, (PDEVINST, DEVINST, ULONG));
DLL_DECLARE_FUNC(WINAPI, CONFIGRET, CM_Get_Device_IDA, (DEVINST, PCHAR, ULONG, ULONG));
#define IOCTL_USB_GET_HUB_CAPABILITIES_EX \
CTL_CODE( FILE_DEVICE_USB, USB_GET_HUB_CAPABILITIES_EX, METHOD_BUFFERED, FILE_ANY_ACCESS)
#define IOCTL_USB_GET_HUB_CAPABILITIES \
CTL_CODE(FILE_DEVICE_USB, USB_GET_HUB_CAPABILITIES, METHOD_BUFFERED, FILE_ANY_ACCESS)
#define IOCTL_USB_GET_DESCRIPTOR_FROM_NODE_CONNECTION \
CTL_CODE(FILE_DEVICE_USB, USB_GET_DESCRIPTOR_FROM_NODE_CONNECTION, METHOD_BUFFERED, FILE_ANY_ACCESS)
#define IOCTL_USB_GET_ROOT_HUB_NAME \
CTL_CODE(FILE_DEVICE_USB, HCD_GET_ROOT_HUB_NAME, METHOD_BUFFERED, FILE_ANY_ACCESS)
#define IOCTL_USB_GET_NODE_INFORMATION \
CTL_CODE(FILE_DEVICE_USB, USB_GET_NODE_INFORMATION, METHOD_BUFFERED, FILE_ANY_ACCESS)
#define IOCTL_USB_GET_NODE_CONNECTION_INFORMATION_EX \
CTL_CODE(FILE_DEVICE_USB, USB_GET_NODE_CONNECTION_INFORMATION_EX, METHOD_BUFFERED, FILE_ANY_ACCESS)
#define IOCTL_USB_GET_NODE_CONNECTION_INFORMATION_EX_V2 \
CTL_CODE(FILE_DEVICE_USB, USB_GET_NODE_CONNECTION_INFORMATION_EX_V2, METHOD_BUFFERED, FILE_ANY_ACCESS)
#define IOCTL_USB_GET_NODE_CONNECTION_ATTRIBUTES \
CTL_CODE(FILE_DEVICE_USB, USB_GET_NODE_CONNECTION_ATTRIBUTES, METHOD_BUFFERED, FILE_ANY_ACCESS)
#define IOCTL_USB_GET_NODE_CONNECTION_NAME \
CTL_CODE(FILE_DEVICE_USB, USB_GET_NODE_CONNECTION_NAME, METHOD_BUFFERED, FILE_ANY_ACCESS)
// Most of the structures below need to be packed
#pragma pack(push, 1)
typedef struct USB_INTERFACE_DESCRIPTOR {
UCHAR bLength;
UCHAR bDescriptorType;
UCHAR bInterfaceNumber;
UCHAR bAlternateSetting;
UCHAR bNumEndpoints;
UCHAR bInterfaceClass;
UCHAR bInterfaceSubClass;
UCHAR bInterfaceProtocol;
UCHAR iInterface;
} USB_INTERFACE_DESCRIPTOR, *PUSB_INTERFACE_DESCRIPTOR;
typedef struct USB_CONFIGURATION_DESCRIPTOR_SHORT {
struct {
ULONG ConnectionIndex;
struct {
UCHAR bmRequest;
UCHAR bRequest;
USHORT wValue;
USHORT wIndex;
USHORT wLength;
} SetupPacket;
} req;
USB_CONFIGURATION_DESCRIPTOR data;
} USB_CONFIGURATION_DESCRIPTOR_SHORT;
typedef struct USB_ENDPOINT_DESCRIPTOR {
UCHAR bLength;
UCHAR bDescriptorType;
UCHAR bEndpointAddress;
UCHAR bmAttributes;
USHORT wMaxPacketSize;
UCHAR bInterval;
} USB_ENDPOINT_DESCRIPTOR, *PUSB_ENDPOINT_DESCRIPTOR;
typedef struct USB_DESCRIPTOR_REQUEST {
ULONG ConnectionIndex;
struct {
UCHAR bmRequest;
UCHAR bRequest;
USHORT wValue;
USHORT wIndex;
USHORT wLength;
} SetupPacket;
// UCHAR Data[0];
} USB_DESCRIPTOR_REQUEST, *PUSB_DESCRIPTOR_REQUEST;
typedef struct USB_HUB_DESCRIPTOR {
UCHAR bDescriptorLength;
UCHAR bDescriptorType;
UCHAR bNumberOfPorts;
USHORT wHubCharacteristics;
UCHAR bPowerOnToPowerGood;
UCHAR bHubControlCurrent;
UCHAR bRemoveAndPowerMask[64];
} USB_HUB_DESCRIPTOR, *PUSB_HUB_DESCRIPTOR;
typedef struct USB_ROOT_HUB_NAME {
ULONG ActualLength;
WCHAR RootHubName[1];
} USB_ROOT_HUB_NAME, *PUSB_ROOT_HUB_NAME;
typedef struct USB_ROOT_HUB_NAME_FIXED {
ULONG ActualLength;
WCHAR RootHubName[MAX_PATH_LENGTH];
} USB_ROOT_HUB_NAME_FIXED;
typedef struct USB_NODE_CONNECTION_NAME {
ULONG ConnectionIndex;
ULONG ActualLength;
WCHAR NodeName[1];
} USB_NODE_CONNECTION_NAME, *PUSB_NODE_CONNECTION_NAME;
typedef struct USB_NODE_CONNECTION_NAME_FIXED {
ULONG ConnectionIndex;
ULONG ActualLength;
WCHAR NodeName[MAX_PATH_LENGTH];
} USB_NODE_CONNECTION_NAME_FIXED;
typedef struct USB_HUB_NAME_FIXED {
union {
USB_ROOT_HUB_NAME_FIXED root;
USB_NODE_CONNECTION_NAME_FIXED node;
} u;
} USB_HUB_NAME_FIXED;
typedef struct USB_HUB_INFORMATION {
USB_HUB_DESCRIPTOR HubDescriptor;
BOOLEAN HubIsBusPowered;
} USB_HUB_INFORMATION, *PUSB_HUB_INFORMATION;
typedef struct USB_MI_PARENT_INFORMATION {
ULONG NumberOfInterfaces;
} USB_MI_PARENT_INFORMATION, *PUSB_MI_PARENT_INFORMATION;
typedef struct USB_NODE_INFORMATION {
USB_HUB_NODE NodeType;
union {
USB_HUB_INFORMATION HubInformation;
USB_MI_PARENT_INFORMATION MiParentInformation;
} u;
} USB_NODE_INFORMATION, *PUSB_NODE_INFORMATION;
typedef struct USB_PIPE_INFO {
USB_ENDPOINT_DESCRIPTOR EndpointDescriptor;
ULONG ScheduleOffset;
} USB_PIPE_INFO, *PUSB_PIPE_INFO;
typedef struct USB_NODE_CONNECTION_INFORMATION_EX {
ULONG ConnectionIndex;
USB_DEVICE_DESCRIPTOR DeviceDescriptor;
UCHAR CurrentConfigurationValue;
UCHAR Speed;
BOOLEAN DeviceIsHub;
USHORT DeviceAddress;
ULONG NumberOfOpenPipes;
USB_CONNECTION_STATUS ConnectionStatus;
// USB_PIPE_INFO PipeList[0];
} USB_NODE_CONNECTION_INFORMATION_EX, *PUSB_NODE_CONNECTION_INFORMATION_EX;
typedef union _USB_PROTOCOLS {
ULONG ul;
struct {
ULONG Usb110:1;
ULONG Usb200:1;
ULONG Usb300:1;
ULONG ReservedMBZ:29;
};
} USB_PROTOCOLS, *PUSB_PROTOCOLS;
typedef union _USB_NODE_CONNECTION_INFORMATION_EX_V2_FLAGS {
ULONG ul;
struct {
ULONG DeviceIsOperatingAtSuperSpeedOrHigher:1;
ULONG DeviceIsSuperSpeedCapableOrHigher:1;
ULONG ReservedMBZ:30;
};
} USB_NODE_CONNECTION_INFORMATION_EX_V2_FLAGS, *PUSB_NODE_CONNECTION_INFORMATION_EX_V2_FLAGS;
typedef struct _USB_NODE_CONNECTION_INFORMATION_EX_V2 {
ULONG ConnectionIndex;
ULONG Length;
USB_PROTOCOLS SupportedUsbProtocols;
USB_NODE_CONNECTION_INFORMATION_EX_V2_FLAGS Flags;
} USB_NODE_CONNECTION_INFORMATION_EX_V2, *PUSB_NODE_CONNECTION_INFORMATION_EX_V2;
typedef struct USB_HUB_CAP_FLAGS {
ULONG HubIsHighSpeedCapable:1;
ULONG HubIsHighSpeed:1;
ULONG HubIsMultiTtCapable:1;
ULONG HubIsMultiTt:1;
ULONG HubIsRoot:1;
ULONG HubIsArmedWakeOnConnect:1;
ULONG ReservedMBZ:26;
} USB_HUB_CAP_FLAGS, *PUSB_HUB_CAP_FLAGS;
typedef struct USB_HUB_CAPABILITIES {
ULONG HubIs2xCapable:1;
} USB_HUB_CAPABILITIES, *PUSB_HUB_CAPABILITIES;
typedef struct USB_HUB_CAPABILITIES_EX {
USB_HUB_CAP_FLAGS CapabilityFlags;
} USB_HUB_CAPABILITIES_EX, *PUSB_HUB_CAPABILITIES_EX;
#pragma pack(pop)
/* winusb.dll interface */
#define SHORT_PACKET_TERMINATE 0x01
#define AUTO_CLEAR_STALL 0x02
#define PIPE_TRANSFER_TIMEOUT 0x03
#define IGNORE_SHORT_PACKETS 0x04
#define ALLOW_PARTIAL_READS 0x05
#define AUTO_FLUSH 0x06
#define RAW_IO 0x07
#define MAXIMUM_TRANSFER_SIZE 0x08
#define AUTO_SUSPEND 0x81
#define SUSPEND_DELAY 0x83
#define DEVICE_SPEED 0x01
#define LowSpeed 0x01
#define FullSpeed 0x02
#define HighSpeed 0x03
typedef enum USBD_PIPE_TYPE {
UsbdPipeTypeControl,
UsbdPipeTypeIsochronous,
UsbdPipeTypeBulk,
UsbdPipeTypeInterrupt
} USBD_PIPE_TYPE;
typedef struct {
USBD_PIPE_TYPE PipeType;
UCHAR PipeId;
USHORT MaximumPacketSize;
UCHAR Interval;
} WINUSB_PIPE_INFORMATION, *PWINUSB_PIPE_INFORMATION;
#pragma pack(1)
typedef struct {
UCHAR request_type;
UCHAR request;
USHORT value;
USHORT index;
USHORT length;
} WINUSB_SETUP_PACKET, *PWINUSB_SETUP_PACKET;
#pragma pack()
typedef void *WINUSB_INTERFACE_HANDLE, *PWINUSB_INTERFACE_HANDLE;
typedef BOOL (WINAPI *WinUsb_AbortPipe_t)(
WINUSB_INTERFACE_HANDLE InterfaceHandle,
UCHAR PipeID
);
typedef BOOL (WINAPI *WinUsb_ControlTransfer_t)(
WINUSB_INTERFACE_HANDLE InterfaceHandle,
WINUSB_SETUP_PACKET SetupPacket,
PUCHAR Buffer,
ULONG BufferLength,
PULONG LengthTransferred,
LPOVERLAPPED Overlapped
);
typedef BOOL (WINAPI *WinUsb_FlushPipe_t)(
WINUSB_INTERFACE_HANDLE InterfaceHandle,
UCHAR PipeID
);
typedef BOOL (WINAPI *WinUsb_Free_t)(
WINUSB_INTERFACE_HANDLE InterfaceHandle
);
typedef BOOL (WINAPI *WinUsb_GetAssociatedInterface_t)(
WINUSB_INTERFACE_HANDLE InterfaceHandle,
UCHAR AssociatedInterfaceIndex,
PWINUSB_INTERFACE_HANDLE AssociatedInterfaceHandle
);
typedef BOOL (WINAPI *WinUsb_GetCurrentAlternateSetting_t)(
WINUSB_INTERFACE_HANDLE InterfaceHandle,
PUCHAR AlternateSetting
);
typedef BOOL (WINAPI *WinUsb_GetDescriptor_t)(
WINUSB_INTERFACE_HANDLE InterfaceHandle,
UCHAR DescriptorType,
UCHAR Index,
USHORT LanguageID,
PUCHAR Buffer,
ULONG BufferLength,
PULONG LengthTransferred
);
typedef BOOL (WINAPI *WinUsb_GetOverlappedResult_t)(
WINUSB_INTERFACE_HANDLE InterfaceHandle,
LPOVERLAPPED lpOverlapped,
LPDWORD lpNumberOfBytesTransferred,
BOOL bWait
);
typedef BOOL (WINAPI *WinUsb_GetPipePolicy_t)(
WINUSB_INTERFACE_HANDLE InterfaceHandle,
UCHAR PipeID,
ULONG PolicyType,
PULONG ValueLength,
PVOID Value
);
typedef BOOL (WINAPI *WinUsb_GetPowerPolicy_t)(
WINUSB_INTERFACE_HANDLE InterfaceHandle,
ULONG PolicyType,
PULONG ValueLength,
PVOID Value
);
typedef BOOL (WINAPI *WinUsb_Initialize_t)(
HANDLE DeviceHandle,
PWINUSB_INTERFACE_HANDLE InterfaceHandle
);
typedef BOOL (WINAPI *WinUsb_QueryDeviceInformation_t)(
WINUSB_INTERFACE_HANDLE InterfaceHandle,
ULONG InformationType,
PULONG BufferLength,
PVOID Buffer
);
typedef BOOL (WINAPI *WinUsb_QueryInterfaceSettings_t)(
WINUSB_INTERFACE_HANDLE InterfaceHandle,
UCHAR AlternateSettingNumber,
PUSB_INTERFACE_DESCRIPTOR UsbAltInterfaceDescriptor
);
typedef BOOL (WINAPI *WinUsb_QueryPipe_t)(
WINUSB_INTERFACE_HANDLE InterfaceHandle,
UCHAR AlternateInterfaceNumber,
UCHAR PipeIndex,
PWINUSB_PIPE_INFORMATION PipeInformation
);
typedef BOOL (WINAPI *WinUsb_ReadPipe_t)(
WINUSB_INTERFACE_HANDLE InterfaceHandle,
UCHAR PipeID,
PUCHAR Buffer,
ULONG BufferLength,
PULONG LengthTransferred,
LPOVERLAPPED Overlapped
);
typedef BOOL (WINAPI *WinUsb_ResetPipe_t)(
WINUSB_INTERFACE_HANDLE InterfaceHandle,
UCHAR PipeID
);
typedef BOOL (WINAPI *WinUsb_SetCurrentAlternateSetting_t)(
WINUSB_INTERFACE_HANDLE InterfaceHandle,
UCHAR AlternateSetting
);
typedef BOOL (WINAPI *WinUsb_SetPipePolicy_t)(
WINUSB_INTERFACE_HANDLE InterfaceHandle,
UCHAR PipeID,
ULONG PolicyType,
ULONG ValueLength,
PVOID Value
);
typedef BOOL (WINAPI *WinUsb_SetPowerPolicy_t)(
WINUSB_INTERFACE_HANDLE InterfaceHandle,
ULONG PolicyType,
ULONG ValueLength,
PVOID Value
);
typedef BOOL (WINAPI *WinUsb_WritePipe_t)(
WINUSB_INTERFACE_HANDLE InterfaceHandle,
UCHAR PipeID,
PUCHAR Buffer,
ULONG BufferLength,
PULONG LengthTransferred,
LPOVERLAPPED Overlapped
);
typedef BOOL (WINAPI *WinUsb_ResetDevice_t)(
WINUSB_INTERFACE_HANDLE InterfaceHandle
);
/* /!\ These must match the ones from the official libusbk.h */
typedef enum _KUSB_FNID {
KUSB_FNID_Init,
KUSB_FNID_Free,
KUSB_FNID_ClaimInterface,
KUSB_FNID_ReleaseInterface,
KUSB_FNID_SetAltInterface,
KUSB_FNID_GetAltInterface,
KUSB_FNID_GetDescriptor,
KUSB_FNID_ControlTransfer,
KUSB_FNID_SetPowerPolicy,
KUSB_FNID_GetPowerPolicy,
KUSB_FNID_SetConfiguration,
KUSB_FNID_GetConfiguration,
KUSB_FNID_ResetDevice,
KUSB_FNID_Initialize,
KUSB_FNID_SelectInterface,
KUSB_FNID_GetAssociatedInterface,
KUSB_FNID_Clone,
KUSB_FNID_QueryInterfaceSettings,
KUSB_FNID_QueryDeviceInformation,
KUSB_FNID_SetCurrentAlternateSetting,
KUSB_FNID_GetCurrentAlternateSetting,
KUSB_FNID_QueryPipe,
KUSB_FNID_SetPipePolicy,
KUSB_FNID_GetPipePolicy,
KUSB_FNID_ReadPipe,
KUSB_FNID_WritePipe,
KUSB_FNID_ResetPipe,
KUSB_FNID_AbortPipe,
KUSB_FNID_FlushPipe,
KUSB_FNID_IsoReadPipe,
KUSB_FNID_IsoWritePipe,
KUSB_FNID_GetCurrentFrameNumber,
KUSB_FNID_GetOverlappedResult,
KUSB_FNID_GetProperty,
KUSB_FNID_COUNT,
} KUSB_FNID;
typedef struct _KLIB_VERSION {
INT Major;
INT Minor;
INT Micro;
INT Nano;
} KLIB_VERSION;
typedef KLIB_VERSION* PKLIB_VERSION;
typedef BOOL (WINAPI *LibK_GetProcAddress_t)(
PVOID *ProcAddress,
ULONG DriverID,
ULONG FunctionID
);
typedef VOID (WINAPI *LibK_GetVersion_t)(
PKLIB_VERSION Version
);
struct winusb_interface {
bool initialized;
WinUsb_AbortPipe_t AbortPipe;
WinUsb_ControlTransfer_t ControlTransfer;
WinUsb_FlushPipe_t FlushPipe;
WinUsb_Free_t Free;
WinUsb_GetAssociatedInterface_t GetAssociatedInterface;
WinUsb_GetCurrentAlternateSetting_t GetCurrentAlternateSetting;
WinUsb_GetDescriptor_t GetDescriptor;
WinUsb_GetOverlappedResult_t GetOverlappedResult;
WinUsb_GetPipePolicy_t GetPipePolicy;
WinUsb_GetPowerPolicy_t GetPowerPolicy;
WinUsb_Initialize_t Initialize;
WinUsb_QueryDeviceInformation_t QueryDeviceInformation;
WinUsb_QueryInterfaceSettings_t QueryInterfaceSettings;
WinUsb_QueryPipe_t QueryPipe;
WinUsb_ReadPipe_t ReadPipe;
WinUsb_ResetPipe_t ResetPipe;
WinUsb_SetCurrentAlternateSetting_t SetCurrentAlternateSetting;
WinUsb_SetPipePolicy_t SetPipePolicy;
WinUsb_SetPowerPolicy_t SetPowerPolicy;
WinUsb_WritePipe_t WritePipe;
WinUsb_ResetDevice_t ResetDevice;
};
/* hid.dll interface */
#define HIDP_STATUS_SUCCESS 0x110000
typedef void * PHIDP_PREPARSED_DATA;
#pragma pack(1)
typedef struct {
ULONG Size;
USHORT VendorID;
USHORT ProductID;
USHORT VersionNumber;
} HIDD_ATTRIBUTES, *PHIDD_ATTRIBUTES;
#pragma pack()
typedef USHORT USAGE;
typedef struct {
USAGE Usage;
USAGE UsagePage;
USHORT InputReportByteLength;
USHORT OutputReportByteLength;
USHORT FeatureReportByteLength;
USHORT Reserved[17];
USHORT NumberLinkCollectionNodes;
USHORT NumberInputButtonCaps;
USHORT NumberInputValueCaps;
USHORT NumberInputDataIndices;
USHORT NumberOutputButtonCaps;
USHORT NumberOutputValueCaps;
USHORT NumberOutputDataIndices;
USHORT NumberFeatureButtonCaps;
USHORT NumberFeatureValueCaps;
USHORT NumberFeatureDataIndices;
} HIDP_CAPS, *PHIDP_CAPS;
typedef enum _HIDP_REPORT_TYPE {
HidP_Input,
HidP_Output,
HidP_Feature
} HIDP_REPORT_TYPE;
typedef struct _HIDP_VALUE_CAPS {
USAGE UsagePage;
UCHAR ReportID;
BOOLEAN IsAlias;
USHORT BitField;
USHORT LinkCollection;
USAGE LinkUsage;
USAGE LinkUsagePage;
BOOLEAN IsRange;
BOOLEAN IsStringRange;
BOOLEAN IsDesignatorRange;
BOOLEAN IsAbsolute;
BOOLEAN HasNull;
UCHAR Reserved;
USHORT BitSize;
USHORT ReportCount;
USHORT Reserved2[5];
ULONG UnitsExp;
ULONG Units;
LONG LogicalMin, LogicalMax;
LONG PhysicalMin, PhysicalMax;
union {
struct {
USAGE UsageMin, UsageMax;
USHORT StringMin, StringMax;
USHORT DesignatorMin, DesignatorMax;
USHORT DataIndexMin, DataIndexMax;
} Range;
struct {
USAGE Usage, Reserved1;
USHORT StringIndex, Reserved2;
USHORT DesignatorIndex, Reserved3;
USHORT DataIndex, Reserved4;
} NotRange;
} u;
} HIDP_VALUE_CAPS, *PHIDP_VALUE_CAPS;
DLL_DECLARE_HANDLE(hid);
DLL_DECLARE_FUNC(WINAPI, BOOL, HidD_GetAttributes, (HANDLE, PHIDD_ATTRIBUTES));
DLL_DECLARE_FUNC(WINAPI, VOID, HidD_GetHidGuid, (LPGUID));
DLL_DECLARE_FUNC(WINAPI, BOOL, HidD_GetPreparsedData, (HANDLE, PHIDP_PREPARSED_DATA *));
DLL_DECLARE_FUNC(WINAPI, BOOL, HidD_FreePreparsedData, (PHIDP_PREPARSED_DATA));
DLL_DECLARE_FUNC(WINAPI, BOOL, HidD_GetManufacturerString, (HANDLE, PVOID, ULONG));
DLL_DECLARE_FUNC(WINAPI, BOOL, HidD_GetProductString, (HANDLE, PVOID, ULONG));
DLL_DECLARE_FUNC(WINAPI, BOOL, HidD_GetSerialNumberString, (HANDLE, PVOID, ULONG));
DLL_DECLARE_FUNC(WINAPI, LONG, HidP_GetCaps, (PHIDP_PREPARSED_DATA, PHIDP_CAPS));
DLL_DECLARE_FUNC(WINAPI, BOOL, HidD_SetNumInputBuffers, (HANDLE, ULONG));
DLL_DECLARE_FUNC(WINAPI, BOOL, HidD_SetFeature, (HANDLE, PVOID, ULONG));
DLL_DECLARE_FUNC(WINAPI, BOOL, HidD_GetFeature, (HANDLE, PVOID, ULONG));
DLL_DECLARE_FUNC(WINAPI, BOOL, HidD_GetPhysicalDescriptor, (HANDLE, PVOID, ULONG));
DLL_DECLARE_FUNC(WINAPI, BOOL, HidD_GetInputReport, (HANDLE, PVOID, ULONG));
DLL_DECLARE_FUNC(WINAPI, BOOL, HidD_SetOutputReport, (HANDLE, PVOID, ULONG));
DLL_DECLARE_FUNC(WINAPI, BOOL, HidD_FlushQueue, (HANDLE));
DLL_DECLARE_FUNC(WINAPI, BOOL, HidP_GetValueCaps, (HIDP_REPORT_TYPE, PHIDP_VALUE_CAPS, PULONG, PHIDP_PREPARSED_DATA));

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vendor/github.com/karalabe/hid/libusb/libusb/strerror.c generated vendored Normal file
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@ -0,0 +1,202 @@
/*
* libusb strerror code
* Copyright © 2013 Hans de Goede <hdegoede@redhat.com>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#include <config.h>
#include <locale.h>
#include <stdlib.h>
#include <string.h>
#if defined(HAVE_STRINGS_H)
#include <strings.h>
#endif
#include "libusbi.h"
#if defined(_MSC_VER)
#define strncasecmp _strnicmp
#endif
static size_t usbi_locale = 0;
/** \ingroup libusb_misc
* How to add a new \ref libusb_strerror() translation:
* <ol>
* <li> Download the latest \c strerror.c from:<br>
* https://raw.github.com/libusb/libusb/master/libusb/sterror.c </li>
* <li> Open the file in an UTF-8 capable editor </li>
* <li> Add the 2 letter <a href="http://en.wikipedia.org/wiki/List_of_ISO_639-1_codes">ISO 639-1</a>
* code for your locale at the end of \c usbi_locale_supported[]<br>
* Eg. for Chinese, you would add "zh" so that:
* \code... usbi_locale_supported[] = { "en", "nl", "fr" };\endcode
* becomes:
* \code... usbi_locale_supported[] = { "en", "nl", "fr", "zh" };\endcode </li>
* <li> Copy the <tt>{ / * English (en) * / ... }</tt> section and add it at the end of \c usbi_localized_errors<br>
* Eg. for Chinese, the last section of \c usbi_localized_errors could look like:
* \code
* }, { / * Chinese (zh) * /
* "Success",
* ...
* "Other error",
* }
* };\endcode </li>
* <li> Translate each of the English messages from the section you copied into your language </li>
* <li> Save the file (in UTF-8 format) and send it to \c libusb-devel\@lists.sourceforge.net </li>
* </ol>
*/
static const char* usbi_locale_supported[] = { "en", "nl", "fr", "ru" };
static const char* usbi_localized_errors[ARRAYSIZE(usbi_locale_supported)][LIBUSB_ERROR_COUNT] = {
{ /* English (en) */
"Success",
"Input/Output Error",
"Invalid parameter",
"Access denied (insufficient permissions)",
"No such device (it may have been disconnected)",
"Entity not found",
"Resource busy",
"Operation timed out",
"Overflow",
"Pipe error",
"System call interrupted (perhaps due to signal)",
"Insufficient memory",
"Operation not supported or unimplemented on this platform",
"Other error",
}, { /* Dutch (nl) */
"Gelukt",
"Invoer-/uitvoerfout",
"Ongeldig argument",
"Toegang geweigerd (onvoldoende toegangsrechten)",
"Apparaat bestaat niet (verbinding met apparaat verbroken?)",
"Niet gevonden",
"Apparaat of hulpbron is bezig",
"Bewerking verlopen",
"Waarde is te groot",
"Gebroken pijp",
"Onderbroken systeemaanroep",
"Onvoldoende geheugen beschikbaar",
"Bewerking wordt niet ondersteund",
"Andere fout",
}, { /* French (fr) */
"Succès",
"Erreur d'entrée/sortie",
"Paramètre invalide",
"Accès refusé (permissions insuffisantes)",
"Périphérique introuvable (peut-être déconnecté)",
"Elément introuvable",
"Resource déjà occupée",
"Operation expirée",
"Débordement",
"Erreur de pipe",
"Appel système abandonné (peut-être à cause d’un signal)",
"Mémoire insuffisante",
"Opération non supportée or non implémentée sur cette plateforme",
"Autre erreur",
}, { /* Russian (ru) */
"Успех",
"Ошибка ввода/вывода",
"Неверный параметр",
"Доступ запрещён (не хватает прав)",
"Устройство отсутствует (возможно, оно было отсоединено)",
"Элемент не найден",
"Ресурс занят",
"Истекло время ожидания операции",
"Переполнение",
"Ошибка канала",
"Системный вызов прерван (возможно, сигналом)",
"Память исчерпана",
"Операция не поддерживается данной платформой",
"Неизвестная ошибка"
}
};
/** \ingroup libusb_misc
* Set the language, and only the language, not the encoding! used for
* translatable libusb messages.
*
* This takes a locale string in the default setlocale format: lang[-region]
* or lang[_country_region][.codeset]. Only the lang part of the string is
* used, and only 2 letter ISO 639-1 codes are accepted for it, such as "de".
* The optional region, country_region or codeset parts are ignored. This
* means that functions which return translatable strings will NOT honor the
* specified encoding.
* All strings returned are encoded as UTF-8 strings.
*
* If libusb_setlocale() is not called, all messages will be in English.
*
* The following functions return translatable strings: libusb_strerror().
* Note that the libusb log messages controlled through libusb_set_debug()
* are not translated, they are always in English.
*
* For POSIX UTF-8 environments if you want libusb to follow the standard
* locale settings, call libusb_setlocale(setlocale(LC_MESSAGES, NULL)),
* after your app has done its locale setup.
*
* \param locale locale-string in the form of lang[_country_region][.codeset]
* or lang[-region], where lang is a 2 letter ISO 639-1 code
* \returns LIBUSB_SUCCESS on success
* \returns LIBUSB_ERROR_INVALID_PARAM if the locale doesn't meet the requirements
* \returns LIBUSB_ERROR_NOT_FOUND if the requested language is not supported
* \returns a LIBUSB_ERROR code on other errors
*/
int API_EXPORTED libusb_setlocale(const char *locale)
{
size_t i;
if ( (locale == NULL) || (strlen(locale) < 2)
|| ((strlen(locale) > 2) && (locale[2] != '-') && (locale[2] != '_') && (locale[2] != '.')) )
return LIBUSB_ERROR_INVALID_PARAM;
for (i=0; i<ARRAYSIZE(usbi_locale_supported); i++) {
if (strncasecmp(usbi_locale_supported[i], locale, 2) == 0)
break;
}
if (i >= ARRAYSIZE(usbi_locale_supported)) {
return LIBUSB_ERROR_NOT_FOUND;
}
usbi_locale = i;
return LIBUSB_SUCCESS;
}
/** \ingroup libusb_misc
* Returns a constant string with a short description of the given error code,
* this description is intended for displaying to the end user and will be in
* the language set by libusb_setlocale().
*
* The returned string is encoded in UTF-8.
*
* The messages always start with a capital letter and end without any dot.
* The caller must not free() the returned string.
*
* \param errcode the error code whose description is desired
* \returns a short description of the error code in UTF-8 encoding
*/
DEFAULT_VISIBILITY const char* LIBUSB_CALL libusb_strerror(enum libusb_error errcode)
{
int errcode_index = -errcode;
if ((errcode_index < 0) || (errcode_index >= LIBUSB_ERROR_COUNT)) {
/* "Other Error", which should always be our last message, is returned */
errcode_index = LIBUSB_ERROR_COUNT - 1;
}
return usbi_localized_errors[usbi_locale][errcode_index];
}

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/*
* Synchronous I/O functions for libusb
* Copyright © 2007-2008 Daniel Drake <dsd@gentoo.org>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#include <config.h>
#include <errno.h>
#include <stdint.h>
#include <stdlib.h>
#include <string.h>
#include "libusbi.h"
/**
* @defgroup libusb_syncio Synchronous device I/O
*
* This page documents libusb's synchronous (blocking) API for USB device I/O.
* This interface is easy to use but has some limitations. More advanced users
* may wish to consider using the \ref libusb_asyncio "asynchronous I/O API" instead.
*/
static void LIBUSB_CALL sync_transfer_cb(struct libusb_transfer *transfer)
{
int *completed = transfer->user_data;
*completed = 1;
usbi_dbg("actual_length=%d", transfer->actual_length);
/* caller interprets result and frees transfer */
}
static void sync_transfer_wait_for_completion(struct libusb_transfer *transfer)
{
int r, *completed = transfer->user_data;
struct libusb_context *ctx = HANDLE_CTX(transfer->dev_handle);
while (!*completed) {
r = libusb_handle_events_completed(ctx, completed);
if (r < 0) {
if (r == LIBUSB_ERROR_INTERRUPTED)
continue;
usbi_err(ctx, "libusb_handle_events failed: %s, cancelling transfer and retrying",
libusb_error_name(r));
libusb_cancel_transfer(transfer);
continue;
}
}
}
/** \ingroup libusb_syncio
* Perform a USB control transfer.
*
* The direction of the transfer is inferred from the bmRequestType field of
* the setup packet.
*
* The wValue, wIndex and wLength fields values should be given in host-endian
* byte order.
*
* \param dev_handle a handle for the device to communicate with
* \param bmRequestType the request type field for the setup packet
* \param bRequest the request field for the setup packet
* \param wValue the value field for the setup packet
* \param wIndex the index field for the setup packet
* \param data a suitably-sized data buffer for either input or output
* (depending on direction bits within bmRequestType)
* \param wLength the length field for the setup packet. The data buffer should
* be at least this size.
* \param timeout timeout (in millseconds) that this function should wait
* before giving up due to no response being received. For an unlimited
* timeout, use value 0.
* \returns on success, the number of bytes actually transferred
* \returns LIBUSB_ERROR_TIMEOUT if the transfer timed out
* \returns LIBUSB_ERROR_PIPE if the control request was not supported by the
* device
* \returns LIBUSB_ERROR_NO_DEVICE if the device has been disconnected
* \returns LIBUSB_ERROR_BUSY if called from event handling context
* \returns LIBUSB_ERROR_INVALID_PARAM if the transfer size is larger than
* the operating system and/or hardware can support
* \returns another LIBUSB_ERROR code on other failures
*/
int API_EXPORTED libusb_control_transfer(libusb_device_handle *dev_handle,
uint8_t bmRequestType, uint8_t bRequest, uint16_t wValue, uint16_t wIndex,
unsigned char *data, uint16_t wLength, unsigned int timeout)
{
struct libusb_transfer *transfer;
unsigned char *buffer;
int completed = 0;
int r;
if (usbi_handling_events(HANDLE_CTX(dev_handle)))
return LIBUSB_ERROR_BUSY;
transfer = libusb_alloc_transfer(0);
if (!transfer)
return LIBUSB_ERROR_NO_MEM;
buffer = (unsigned char*) malloc(LIBUSB_CONTROL_SETUP_SIZE + wLength);
if (!buffer) {
libusb_free_transfer(transfer);
return LIBUSB_ERROR_NO_MEM;
}
libusb_fill_control_setup(buffer, bmRequestType, bRequest, wValue, wIndex,
wLength);
if ((bmRequestType & LIBUSB_ENDPOINT_DIR_MASK) == LIBUSB_ENDPOINT_OUT)
memcpy(buffer + LIBUSB_CONTROL_SETUP_SIZE, data, wLength);
libusb_fill_control_transfer(transfer, dev_handle, buffer,
sync_transfer_cb, &completed, timeout);
transfer->flags = LIBUSB_TRANSFER_FREE_BUFFER;
r = libusb_submit_transfer(transfer);
if (r < 0) {
libusb_free_transfer(transfer);
return r;
}
sync_transfer_wait_for_completion(transfer);
if ((bmRequestType & LIBUSB_ENDPOINT_DIR_MASK) == LIBUSB_ENDPOINT_IN)
memcpy(data, libusb_control_transfer_get_data(transfer),
transfer->actual_length);
switch (transfer->status) {
case LIBUSB_TRANSFER_COMPLETED:
r = transfer->actual_length;
break;
case LIBUSB_TRANSFER_TIMED_OUT:
r = LIBUSB_ERROR_TIMEOUT;
break;
case LIBUSB_TRANSFER_STALL:
r = LIBUSB_ERROR_PIPE;
break;
case LIBUSB_TRANSFER_NO_DEVICE:
r = LIBUSB_ERROR_NO_DEVICE;
break;
case LIBUSB_TRANSFER_OVERFLOW:
r = LIBUSB_ERROR_OVERFLOW;
break;
case LIBUSB_TRANSFER_ERROR:
case LIBUSB_TRANSFER_CANCELLED:
r = LIBUSB_ERROR_IO;
break;
default:
usbi_warn(HANDLE_CTX(dev_handle),
"unrecognised status code %d", transfer->status);
r = LIBUSB_ERROR_OTHER;
}
libusb_free_transfer(transfer);
return r;
}
static int do_sync_bulk_transfer(struct libusb_device_handle *dev_handle,
unsigned char endpoint, unsigned char *buffer, int length,
int *transferred, unsigned int timeout, unsigned char type)
{
struct libusb_transfer *transfer;
int completed = 0;
int r;
if (usbi_handling_events(HANDLE_CTX(dev_handle)))
return LIBUSB_ERROR_BUSY;
transfer = libusb_alloc_transfer(0);
if (!transfer)
return LIBUSB_ERROR_NO_MEM;
libusb_fill_bulk_transfer(transfer, dev_handle, endpoint, buffer, length,
sync_transfer_cb, &completed, timeout);
transfer->type = type;
r = libusb_submit_transfer(transfer);
if (r < 0) {
libusb_free_transfer(transfer);
return r;
}
sync_transfer_wait_for_completion(transfer);
if (transferred)
*transferred = transfer->actual_length;
switch (transfer->status) {
case LIBUSB_TRANSFER_COMPLETED:
r = 0;
break;
case LIBUSB_TRANSFER_TIMED_OUT:
r = LIBUSB_ERROR_TIMEOUT;
break;
case LIBUSB_TRANSFER_STALL:
r = LIBUSB_ERROR_PIPE;
break;
case LIBUSB_TRANSFER_OVERFLOW:
r = LIBUSB_ERROR_OVERFLOW;
break;
case LIBUSB_TRANSFER_NO_DEVICE:
r = LIBUSB_ERROR_NO_DEVICE;
break;
case LIBUSB_TRANSFER_ERROR:
case LIBUSB_TRANSFER_CANCELLED:
r = LIBUSB_ERROR_IO;
break;
default:
usbi_warn(HANDLE_CTX(dev_handle),
"unrecognised status code %d", transfer->status);
r = LIBUSB_ERROR_OTHER;
}
libusb_free_transfer(transfer);
return r;
}
/** \ingroup libusb_syncio
* Perform a USB bulk transfer. The direction of the transfer is inferred from
* the direction bits of the endpoint address.
*
* For bulk reads, the <tt>length</tt> field indicates the maximum length of
* data you are expecting to receive. If less data arrives than expected,
* this function will return that data, so be sure to check the
* <tt>transferred</tt> output parameter.
*
* You should also check the <tt>transferred</tt> parameter for bulk writes.
* Not all of the data may have been written.
*
* Also check <tt>transferred</tt> when dealing with a timeout error code.
* libusb may have to split your transfer into a number of chunks to satisfy
* underlying O/S requirements, meaning that the timeout may expire after
* the first few chunks have completed. libusb is careful not to lose any data
* that may have been transferred; do not assume that timeout conditions
* indicate a complete lack of I/O.
*
* \param dev_handle a handle for the device to communicate with
* \param endpoint the address of a valid endpoint to communicate with
* \param data a suitably-sized data buffer for either input or output
* (depending on endpoint)
* \param length for bulk writes, the number of bytes from data to be sent. for
* bulk reads, the maximum number of bytes to receive into the data buffer.
* \param transferred output location for the number of bytes actually
* transferred. Since version 1.0.21 (\ref LIBUSB_API_VERSION >= 0x01000105),
* it is legal to pass a NULL pointer if you do not wish to receive this
* information.
* \param timeout timeout (in millseconds) that this function should wait
* before giving up due to no response being received. For an unlimited
* timeout, use value 0.
*
* \returns 0 on success (and populates <tt>transferred</tt>)
* \returns LIBUSB_ERROR_TIMEOUT if the transfer timed out (and populates
* <tt>transferred</tt>)
* \returns LIBUSB_ERROR_PIPE if the endpoint halted
* \returns LIBUSB_ERROR_OVERFLOW if the device offered more data, see
* \ref libusb_packetoverflow
* \returns LIBUSB_ERROR_NO_DEVICE if the device has been disconnected
* \returns LIBUSB_ERROR_BUSY if called from event handling context
* \returns another LIBUSB_ERROR code on other failures
*/
int API_EXPORTED libusb_bulk_transfer(struct libusb_device_handle *dev_handle,
unsigned char endpoint, unsigned char *data, int length, int *transferred,
unsigned int timeout)
{
return do_sync_bulk_transfer(dev_handle, endpoint, data, length,
transferred, timeout, LIBUSB_TRANSFER_TYPE_BULK);
}
/** \ingroup libusb_syncio
* Perform a USB interrupt transfer. The direction of the transfer is inferred
* from the direction bits of the endpoint address.
*
* For interrupt reads, the <tt>length</tt> field indicates the maximum length
* of data you are expecting to receive. If less data arrives than expected,
* this function will return that data, so be sure to check the
* <tt>transferred</tt> output parameter.
*
* You should also check the <tt>transferred</tt> parameter for interrupt
* writes. Not all of the data may have been written.
*
* Also check <tt>transferred</tt> when dealing with a timeout error code.
* libusb may have to split your transfer into a number of chunks to satisfy
* underlying O/S requirements, meaning that the timeout may expire after
* the first few chunks have completed. libusb is careful not to lose any data
* that may have been transferred; do not assume that timeout conditions
* indicate a complete lack of I/O.
*
* The default endpoint bInterval value is used as the polling interval.
*
* \param dev_handle a handle for the device to communicate with
* \param endpoint the address of a valid endpoint to communicate with
* \param data a suitably-sized data buffer for either input or output
* (depending on endpoint)
* \param length for bulk writes, the number of bytes from data to be sent. for
* bulk reads, the maximum number of bytes to receive into the data buffer.
* \param transferred output location for the number of bytes actually
* transferred. Since version 1.0.21 (\ref LIBUSB_API_VERSION >= 0x01000105),
* it is legal to pass a NULL pointer if you do not wish to receive this
* information.
* \param timeout timeout (in millseconds) that this function should wait
* before giving up due to no response being received. For an unlimited
* timeout, use value 0.
*
* \returns 0 on success (and populates <tt>transferred</tt>)
* \returns LIBUSB_ERROR_TIMEOUT if the transfer timed out
* \returns LIBUSB_ERROR_PIPE if the endpoint halted
* \returns LIBUSB_ERROR_OVERFLOW if the device offered more data, see
* \ref libusb_packetoverflow
* \returns LIBUSB_ERROR_NO_DEVICE if the device has been disconnected
* \returns LIBUSB_ERROR_BUSY if called from event handling context
* \returns another LIBUSB_ERROR code on other error
*/
int API_EXPORTED libusb_interrupt_transfer(
struct libusb_device_handle *dev_handle, unsigned char endpoint,
unsigned char *data, int length, int *transferred, unsigned int timeout)
{
return do_sync_bulk_transfer(dev_handle, endpoint, data, length,
transferred, timeout, LIBUSB_TRANSFER_TYPE_INTERRUPT);
}

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/* This file is parsed by m4 and windres and RC.EXE so please keep it simple. */
#include "version_nano.h"
#ifndef LIBUSB_MAJOR
#define LIBUSB_MAJOR 1
#endif
#ifndef LIBUSB_MINOR
#define LIBUSB_MINOR 0
#endif
#ifndef LIBUSB_MICRO
#define LIBUSB_MICRO 21
#endif
#ifndef LIBUSB_NANO
#define LIBUSB_NANO 0
#endif
/* LIBUSB_RC is the release candidate suffix. Should normally be empty. */
#ifndef LIBUSB_RC
#define LIBUSB_RC ""
#endif

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#define LIBUSB_NANO 11182