mirror of
https://github.com/libusb/libusb
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Initial commit
Basic library structure which supports enumerating detected USB devices
This commit is contained in:
Daniel Drake
commit
852bba4754
21 changed files with 3113 additions and 0 deletions
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vendored
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.deps
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.libs
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Makefile
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Makefile.in
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*.la
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*.lo
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*.o
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libtool
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ltmain.sh
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config.h*
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config.log
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||||
config.status
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||||
config.sub
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||||
*.swp
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lsusb
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dpfp
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*.pc
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fpusb-*.tar.bz2
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fpusb-*.tar.gz
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ChangeLog
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1
AUTHORS
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1
AUTHORS
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Daniel Drake <dsd@gentoo.org>
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COPYING
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COPYING
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|
||||
to distribute software through any other system and a licensee cannot
|
||||
impose that choice.
|
||||
|
||||
This section is intended to make thoroughly clear what is believed to
|
||||
be a consequence of the rest of this License.
|
||||
|
||||
12. If the distribution and/or use of the Library is restricted in
|
||||
certain countries either by patents or by copyrighted interfaces, the
|
||||
original copyright holder who places the Library under this License may add
|
||||
an explicit geographical distribution limitation excluding those countries,
|
||||
so that distribution is permitted only in or among countries not thus
|
||||
excluded. In such case, this License incorporates the limitation as if
|
||||
written in the body of this License.
|
||||
|
||||
13. The Free Software Foundation may publish revised and/or new
|
||||
versions of the Lesser General Public License from time to time.
|
||||
Such new versions will be similar in spirit to the present version,
|
||||
but may differ in detail to address new problems or concerns.
|
||||
|
||||
Each version is given a distinguishing version number. If the Library
|
||||
specifies a version number of this License which applies to it and
|
||||
"any later version", you have the option of following the terms and
|
||||
conditions either of that version or of any later version published by
|
||||
the Free Software Foundation. If the Library does not specify a
|
||||
license version number, you may choose any version ever published by
|
||||
the Free Software Foundation.
|
||||
|
||||
14. If you wish to incorporate parts of the Library into other free
|
||||
programs whose distribution conditions are incompatible with these,
|
||||
write to the author to ask for permission. For software which is
|
||||
copyrighted by the Free Software Foundation, write to the Free
|
||||
Software Foundation; we sometimes make exceptions for this. Our
|
||||
decision will be guided by the two goals of preserving the free status
|
||||
of all derivatives of our free software and of promoting the sharing
|
||||
and reuse of software generally.
|
||||
|
||||
NO WARRANTY
|
||||
|
||||
15. BECAUSE THE LIBRARY IS LICENSED FREE OF CHARGE, THERE IS NO
|
||||
WARRANTY FOR THE LIBRARY, TO THE EXTENT PERMITTED BY APPLICABLE LAW.
|
||||
EXCEPT WHEN OTHERWISE STATED IN WRITING THE COPYRIGHT HOLDERS AND/OR
|
||||
OTHER PARTIES PROVIDE THE LIBRARY "AS IS" WITHOUT WARRANTY OF ANY
|
||||
KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, THE
|
||||
IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
|
||||
PURPOSE. THE ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE OF THE
|
||||
LIBRARY IS WITH YOU. SHOULD THE LIBRARY PROVE DEFECTIVE, YOU ASSUME
|
||||
THE COST OF ALL NECESSARY SERVICING, REPAIR OR CORRECTION.
|
||||
|
||||
16. IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN
|
||||
WRITING WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MAY MODIFY
|
||||
AND/OR REDISTRIBUTE THE LIBRARY AS PERMITTED ABOVE, BE LIABLE TO YOU
|
||||
FOR DAMAGES, INCLUDING ANY GENERAL, SPECIAL, INCIDENTAL OR
|
||||
CONSEQUENTIAL DAMAGES ARISING OUT OF THE USE OR INABILITY TO USE THE
|
||||
LIBRARY (INCLUDING BUT NOT LIMITED TO LOSS OF DATA OR DATA BEING
|
||||
RENDERED INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD PARTIES OR A
|
||||
FAILURE OF THE LIBRARY TO OPERATE WITH ANY OTHER SOFTWARE), EVEN IF
|
||||
SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH
|
||||
DAMAGES.
|
||||
|
||||
END OF TERMS AND CONDITIONS
|
||||
|
||||
How to Apply These Terms to Your New Libraries
|
||||
|
||||
If you develop a new library, and you want it to be of the greatest
|
||||
possible use to the public, we recommend making it free software that
|
||||
everyone can redistribute and change. You can do so by permitting
|
||||
redistribution under these terms (or, alternatively, under the terms of the
|
||||
ordinary General Public License).
|
||||
|
||||
To apply these terms, attach the following notices to the library. It is
|
||||
safest to attach them to the start of each source file to most effectively
|
||||
convey the exclusion of warranty; and each file should have at least the
|
||||
"copyright" line and a pointer to where the full notice is found.
|
||||
|
||||
<one line to give the library's name and a brief idea of what it does.>
|
||||
Copyright (C) <year> <name of author>
|
||||
|
||||
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
|
||||
|
||||
Also add information on how to contact you by electronic and paper mail.
|
||||
|
||||
You should also get your employer (if you work as a programmer) or your
|
||||
school, if any, to sign a "copyright disclaimer" for the library, if
|
||||
necessary. Here is a sample; alter the names:
|
||||
|
||||
Yoyodyne, Inc., hereby disclaims all copyright interest in the
|
||||
library `Frob' (a library for tweaking knobs) written by James Random Hacker.
|
||||
|
||||
<signature of Ty Coon>, 1 April 1990
|
||||
Ty Coon, President of Vice
|
||||
|
||||
That's all there is to it!
|
||||
|
||||
|
||||
234
INSTALL
Normal file
234
INSTALL
Normal file
|
|
@ -0,0 +1,234 @@
|
|||
Installation Instructions
|
||||
*************************
|
||||
|
||||
Copyright (C) 1994, 1995, 1996, 1999, 2000, 2001, 2002, 2004, 2005,
|
||||
2006 Free Software Foundation, Inc.
|
||||
|
||||
This file is free documentation; the Free Software Foundation gives
|
||||
unlimited permission to copy, distribute and modify it.
|
||||
|
||||
Basic Installation
|
||||
==================
|
||||
|
||||
Briefly, the shell commands `./configure; make; make install' should
|
||||
configure, build, and install this package. The following
|
||||
more-detailed instructions are generic; see the `README' file for
|
||||
instructions specific to this package.
|
||||
|
||||
The `configure' shell script attempts to guess correct values for
|
||||
various system-dependent variables used during compilation. It uses
|
||||
those values to create a `Makefile' in each directory of the package.
|
||||
It may also create one or more `.h' files containing system-dependent
|
||||
definitions. Finally, it creates a shell script `config.status' that
|
||||
you can run in the future to recreate the current configuration, and a
|
||||
file `config.log' containing compiler output (useful mainly for
|
||||
debugging `configure').
|
||||
|
||||
It can also use an optional file (typically called `config.cache'
|
||||
and enabled with `--cache-file=config.cache' or simply `-C') that saves
|
||||
the results of its tests to speed up reconfiguring. Caching is
|
||||
disabled by default to prevent problems with accidental use of stale
|
||||
cache files.
|
||||
|
||||
If you need to do unusual things to compile the package, please try
|
||||
to figure out how `configure' could check whether to do them, and mail
|
||||
diffs or instructions to the address given in the `README' so they can
|
||||
be considered for the next release. If you are using the cache, and at
|
||||
some point `config.cache' contains results you don't want to keep, you
|
||||
may remove or edit it.
|
||||
|
||||
The file `configure.ac' (or `configure.in') is used to create
|
||||
`configure' by a program called `autoconf'. You need `configure.ac' if
|
||||
you want to change it or regenerate `configure' using a newer version
|
||||
of `autoconf'.
|
||||
|
||||
The simplest way to compile this package is:
|
||||
|
||||
1. `cd' to the directory containing the package's source code and type
|
||||
`./configure' to configure the package for your system.
|
||||
|
||||
Running `configure' might take a while. While running, it prints
|
||||
some messages telling which features it is checking for.
|
||||
|
||||
2. Type `make' to compile the package.
|
||||
|
||||
3. Optionally, type `make check' to run any self-tests that come with
|
||||
the package.
|
||||
|
||||
4. Type `make install' to install the programs and any data files and
|
||||
documentation.
|
||||
|
||||
5. You can remove the program binaries and object files from the
|
||||
source code directory by typing `make clean'. To also remove the
|
||||
files that `configure' created (so you can compile the package for
|
||||
a different kind of computer), type `make distclean'. There is
|
||||
also a `make maintainer-clean' target, but that is intended mainly
|
||||
for the package's developers. If you use it, you may have to get
|
||||
all sorts of other programs in order to regenerate files that came
|
||||
with the distribution.
|
||||
|
||||
Compilers and Options
|
||||
=====================
|
||||
|
||||
Some systems require unusual options for compilation or linking that the
|
||||
`configure' script does not know about. Run `./configure --help' for
|
||||
details on some of the pertinent environment variables.
|
||||
|
||||
You can give `configure' initial values for configuration parameters
|
||||
by setting variables in the command line or in the environment. Here
|
||||
is an example:
|
||||
|
||||
./configure CC=c99 CFLAGS=-g LIBS=-lposix
|
||||
|
||||
*Note Defining Variables::, for more details.
|
||||
|
||||
Compiling For Multiple Architectures
|
||||
====================================
|
||||
|
||||
You can compile the package for more than one kind of computer at the
|
||||
same time, by placing the object files for each architecture in their
|
||||
own directory. To do this, you can use GNU `make'. `cd' to the
|
||||
directory where you want the object files and executables to go and run
|
||||
the `configure' script. `configure' automatically checks for the
|
||||
source code in the directory that `configure' is in and in `..'.
|
||||
|
||||
With a non-GNU `make', it is safer to compile the package for one
|
||||
architecture at a time in the source code directory. After you have
|
||||
installed the package for one architecture, use `make distclean' before
|
||||
reconfiguring for another architecture.
|
||||
|
||||
Installation Names
|
||||
==================
|
||||
|
||||
By default, `make install' installs the package's commands under
|
||||
`/usr/local/bin', include files under `/usr/local/include', etc. You
|
||||
can specify an installation prefix other than `/usr/local' by giving
|
||||
`configure' the option `--prefix=PREFIX'.
|
||||
|
||||
You can specify separate installation prefixes for
|
||||
architecture-specific files and architecture-independent files. If you
|
||||
pass the option `--exec-prefix=PREFIX' to `configure', the package uses
|
||||
PREFIX as the prefix for installing programs and libraries.
|
||||
Documentation and other data files still use the regular prefix.
|
||||
|
||||
In addition, if you use an unusual directory layout you can give
|
||||
options like `--bindir=DIR' to specify different values for particular
|
||||
kinds of files. Run `configure --help' for a list of the directories
|
||||
you can set and what kinds of files go in them.
|
||||
|
||||
If the package supports it, you can cause programs to be installed
|
||||
with an extra prefix or suffix on their names by giving `configure' the
|
||||
option `--program-prefix=PREFIX' or `--program-suffix=SUFFIX'.
|
||||
|
||||
Optional Features
|
||||
=================
|
||||
|
||||
Some packages pay attention to `--enable-FEATURE' options to
|
||||
`configure', where FEATURE indicates an optional part of the package.
|
||||
They may also pay attention to `--with-PACKAGE' options, where PACKAGE
|
||||
is something like `gnu-as' or `x' (for the X Window System). The
|
||||
`README' should mention any `--enable-' and `--with-' options that the
|
||||
package recognizes.
|
||||
|
||||
For packages that use the X Window System, `configure' can usually
|
||||
find the X include and library files automatically, but if it doesn't,
|
||||
you can use the `configure' options `--x-includes=DIR' and
|
||||
`--x-libraries=DIR' to specify their locations.
|
||||
|
||||
Specifying the System Type
|
||||
==========================
|
||||
|
||||
There may be some features `configure' cannot figure out automatically,
|
||||
but needs to determine by the type of machine the package will run on.
|
||||
Usually, assuming the package is built to be run on the _same_
|
||||
architectures, `configure' can figure that out, but if it prints a
|
||||
message saying it cannot guess the machine type, give it the
|
||||
`--build=TYPE' option. TYPE can either be a short name for the system
|
||||
type, such as `sun4', or a canonical name which has the form:
|
||||
|
||||
CPU-COMPANY-SYSTEM
|
||||
|
||||
where SYSTEM can have one of these forms:
|
||||
|
||||
OS KERNEL-OS
|
||||
|
||||
See the file `config.sub' for the possible values of each field. If
|
||||
`config.sub' isn't included in this package, then this package doesn't
|
||||
need to know the machine type.
|
||||
|
||||
If you are _building_ compiler tools for cross-compiling, you should
|
||||
use the option `--target=TYPE' to select the type of system they will
|
||||
produce code for.
|
||||
|
||||
If you want to _use_ a cross compiler, that generates code for a
|
||||
platform different from the build platform, you should specify the
|
||||
"host" platform (i.e., that on which the generated programs will
|
||||
eventually be run) with `--host=TYPE'.
|
||||
|
||||
Sharing Defaults
|
||||
================
|
||||
|
||||
If you want to set default values for `configure' scripts to share, you
|
||||
can create a site shell script called `config.site' that gives default
|
||||
values for variables like `CC', `cache_file', and `prefix'.
|
||||
`configure' looks for `PREFIX/share/config.site' if it exists, then
|
||||
`PREFIX/etc/config.site' if it exists. Or, you can set the
|
||||
`CONFIG_SITE' environment variable to the location of the site script.
|
||||
A warning: not all `configure' scripts look for a site script.
|
||||
|
||||
Defining Variables
|
||||
==================
|
||||
|
||||
Variables not defined in a site shell script can be set in the
|
||||
environment passed to `configure'. However, some packages may run
|
||||
configure again during the build, and the customized values of these
|
||||
variables may be lost. In order to avoid this problem, you should set
|
||||
them in the `configure' command line, using `VAR=value'. For example:
|
||||
|
||||
./configure CC=/usr/local2/bin/gcc
|
||||
|
||||
causes the specified `gcc' to be used as the C compiler (unless it is
|
||||
overridden in the site shell script).
|
||||
|
||||
Unfortunately, this technique does not work for `CONFIG_SHELL' due to
|
||||
an Autoconf bug. Until the bug is fixed you can use this workaround:
|
||||
|
||||
CONFIG_SHELL=/bin/bash /bin/bash ./configure CONFIG_SHELL=/bin/bash
|
||||
|
||||
`configure' Invocation
|
||||
======================
|
||||
|
||||
`configure' recognizes the following options to control how it operates.
|
||||
|
||||
`--help'
|
||||
`-h'
|
||||
Print a summary of the options to `configure', and exit.
|
||||
|
||||
`--version'
|
||||
`-V'
|
||||
Print the version of Autoconf used to generate the `configure'
|
||||
script, and exit.
|
||||
|
||||
`--cache-file=FILE'
|
||||
Enable the cache: use and save the results of the tests in FILE,
|
||||
traditionally `config.cache'. FILE defaults to `/dev/null' to
|
||||
disable caching.
|
||||
|
||||
`--config-cache'
|
||||
`-C'
|
||||
Alias for `--cache-file=config.cache'.
|
||||
|
||||
`--quiet'
|
||||
`--silent'
|
||||
`-q'
|
||||
Do not print messages saying which checks are being made. To
|
||||
suppress all normal output, redirect it to `/dev/null' (any error
|
||||
messages will still be shown).
|
||||
|
||||
`--srcdir=DIR'
|
||||
Look for the package's source code in directory DIR. Usually
|
||||
`configure' can determine that directory automatically.
|
||||
|
||||
`configure' also accepts some other, not widely useful, options. Run
|
||||
`configure --help' for more details.
|
||||
|
||||
21
Makefile.am
Normal file
21
Makefile.am
Normal file
|
|
@ -0,0 +1,21 @@
|
|||
AUTOMAKE_OPTIONS = dist-bzip2
|
||||
DISTCLEANFILES = ChangeLog fpusb.pc
|
||||
EXTRA_DIST = TODO
|
||||
SUBDIRS = libfpusb
|
||||
|
||||
if BUILD_EXAMPLES
|
||||
SUBDIRS += examples
|
||||
endif
|
||||
|
||||
pkgconfigdir=$(libdir)/pkgconfig
|
||||
pkgconfig_DATA=fpusb.pc
|
||||
|
||||
.PHONY: ChangeLog dist-up
|
||||
ChangeLog:
|
||||
git --git-dir $(top_srcdir)/.git log > ChangeLog || touch ChangeLog
|
||||
|
||||
dist-hook: ChangeLog
|
||||
|
||||
dist-up: dist
|
||||
ncftpput upload.sourceforge.net incoming $(distdir).tar.bz2
|
||||
|
||||
3
NEWS
Normal file
3
NEWS
Normal file
|
|
@ -0,0 +1,3 @@
|
|||
This file lists notable changes in each release. For the full history of all
|
||||
changes, see ChangeLog.
|
||||
|
||||
17
README
Normal file
17
README
Normal file
|
|
@ -0,0 +1,17 @@
|
|||
fpusb
|
||||
=====
|
||||
|
||||
fpusb is another library for USB device access from Linux userspace.
|
||||
It is written in C and licensed under the LGPL-2.1 (see COPYING).
|
||||
|
||||
See the homepage for more information:
|
||||
http://www.reactivated.net/fprint/wiki/Fpusb
|
||||
|
||||
Use the mailing list for questions, comments, etc:
|
||||
http://www.reactivated.net/fprint/wiki/Mailing_list
|
||||
|
||||
Use the bug tracker for bugs and feature requests:
|
||||
http://www.reactivated.net/fprint/bugs/index.php?project=4&switch=1&do=index
|
||||
|
||||
- Daniel Drake <dsd@gentoo.org>
|
||||
|
||||
6
TODO
Normal file
6
TODO
Normal file
|
|
@ -0,0 +1,6 @@
|
|||
isochronous endpoint I/O
|
||||
optional timerfd support (runtime detection)
|
||||
API docs
|
||||
notifications of hotplugged/unplugged devices
|
||||
thread safety
|
||||
signalfd emulation through pipes and sigaction() for older kernels
|
||||
8
autogen.sh
Executable file
8
autogen.sh
Executable file
|
|
@ -0,0 +1,8 @@
|
|||
#!/bin/sh
|
||||
libtoolize --copy --force || exit 1
|
||||
aclocal || exit 1
|
||||
autoheader || exit 1
|
||||
autoconf || exit 1
|
||||
automake -a -c || exit 1
|
||||
./configure --enable-maintainer-mode --enable-debug-log \
|
||||
--enable-examples-build $*
|
||||
49
configure.ac
Normal file
49
configure.ac
Normal file
|
|
@ -0,0 +1,49 @@
|
|||
AC_INIT([fpusb], [0.0])
|
||||
AM_INIT_AUTOMAKE
|
||||
AC_CONFIG_SRCDIR([libfpusb/core.c])
|
||||
AM_CONFIG_HEADER([config.h])
|
||||
|
||||
AC_PREREQ([2.50])
|
||||
AC_PROG_CC
|
||||
AC_PROG_LIBTOOL
|
||||
AC_C_INLINE
|
||||
AM_PROG_CC_C_O
|
||||
|
||||
# Library versioning
|
||||
lt_major="0"
|
||||
lt_revision="0"
|
||||
lt_age="0"
|
||||
AC_SUBST(lt_major)
|
||||
AC_SUBST(lt_revision)
|
||||
AC_SUBST(lt_age)
|
||||
|
||||
# Message logging
|
||||
AC_ARG_ENABLE([log], [AS_HELP_STRING([--disable-log], [disable all logging])],
|
||||
[log_enabled=$enableval],
|
||||
[log_enabled='yes'])
|
||||
if test "x$log_enabled" != "xno"; then
|
||||
AC_DEFINE([ENABLE_LOGGING], 1, [Message logging])
|
||||
fi
|
||||
|
||||
AC_ARG_ENABLE([debug-log], [AS_HELP_STRING([--enable-debug-log],
|
||||
[enable debug logging (default n)])],
|
||||
[debug_log_enabled=$enableval],
|
||||
[debug_log_enabled='no'])
|
||||
if test "x$debug_log_enabled" != "xno"; then
|
||||
AC_DEFINE([ENABLE_DEBUG_LOGGING], 1, [Debug message logging])
|
||||
fi
|
||||
|
||||
# Examples build
|
||||
AC_ARG_ENABLE([examples-build], [AS_HELP_STRING([--enable-examples-build],
|
||||
[build example applications (default n)])],
|
||||
[build_examples=$enableval],
|
||||
[build_examples='no'])
|
||||
AM_CONDITIONAL([BUILD_EXAMPLES], [test "x$build_examples" != "xno"])
|
||||
|
||||
AC_DEFINE([API_EXPORTED], [__attribute__((visibility("default")))], [Default visibility])
|
||||
AM_CFLAGS="-Werror-implicit-function-declaration -Wimplicit-int -Wunreachable-code -Wunused-function -Wunused-label -Wunused-value -Wunused-variable -Wnonnull -Wreturn-type -Wextra -Wshadow"
|
||||
AC_SUBST(AM_CFLAGS)
|
||||
|
||||
AC_CONFIG_FILES([fpusb.pc] [Makefile] [libfpusb/Makefile] [examples/Makefile])
|
||||
AC_OUTPUT
|
||||
|
||||
9
examples/Makefile.am
Normal file
9
examples/Makefile.am
Normal file
|
|
@ -0,0 +1,9 @@
|
|||
INCLUDES = -I$(top_srcdir)
|
||||
noinst_PROGRAMS = lsusb dpfp
|
||||
|
||||
lsusb_SOURCES = lsusb.c
|
||||
lsusb_LDADD = ../libfpusb/libfpusb.la -lfpusb
|
||||
|
||||
dpfp_SOURCES = dpfp.c
|
||||
dpfp_LDADD = ../libfpusb/libfpusb.la -lfpusb
|
||||
|
||||
556
examples/dpfp.c
Normal file
556
examples/dpfp.c
Normal file
|
|
@ -0,0 +1,556 @@
|
|||
/*
|
||||
* fpusb example program to manipulate U.are.U 4000B fingerprint scanner.
|
||||
* Copyright (C) 2007 Daniel Drake <dsd@gentoo.org>
|
||||
*
|
||||
* Basic image capture program only, does not consider the powerup quirks or
|
||||
* the fact that image encryption may be enabled. Not expected to work
|
||||
* flawlessly all of the time.
|
||||
*
|
||||
* 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 <signal.h>
|
||||
#include <string.h>
|
||||
#include <stdio.h>
|
||||
#include <stdlib.h>
|
||||
|
||||
#include <libfpusb/fpusb.h>
|
||||
|
||||
#define EP_INTR (1 | USB_ENDPOINT_IN)
|
||||
#define EP_DATA (2 | USB_ENDPOINT_IN)
|
||||
#define CTRL_IN (USB_TYPE_VENDOR | USB_ENDPOINT_IN)
|
||||
#define CTRL_OUT (USB_TYPE_VENDOR | USB_ENDPOINT_OUT)
|
||||
#define USB_RQ 0x04
|
||||
#define INTR_LENGTH 64
|
||||
|
||||
enum {
|
||||
MODE_INIT = 0x00,
|
||||
MODE_AWAIT_FINGER_ON = 0x10,
|
||||
MODE_AWAIT_FINGER_OFF = 0x12,
|
||||
MODE_CAPTURE = 0x20,
|
||||
MODE_SHUT_UP = 0x30,
|
||||
MODE_READY = 0x80,
|
||||
};
|
||||
|
||||
static int next_state(void);
|
||||
static int submit_irq_urb(void);
|
||||
static int submit_img_urb(void);
|
||||
|
||||
enum {
|
||||
STATE_AWAIT_MODE_CHANGE_AWAIT_FINGER_ON = 1,
|
||||
STATE_AWAIT_IRQ_FINGER_DETECTED,
|
||||
STATE_AWAIT_MODE_CHANGE_CAPTURE,
|
||||
STATE_AWAIT_IMAGE,
|
||||
STATE_AWAIT_MODE_CHANGE_AWAIT_FINGER_OFF,
|
||||
STATE_AWAIT_IRQ_FINGER_REMOVED,
|
||||
};
|
||||
|
||||
static int state = 0;
|
||||
static struct fpusb_dev_handle *devh = NULL;
|
||||
static unsigned char imgbuf[0x1b340];
|
||||
static unsigned char irqbuf[INTR_LENGTH];
|
||||
static fpusb_urb_handle *img_urbh = NULL;
|
||||
static fpusb_urb_handle *irq_urbh = NULL;
|
||||
static int img_idx = 0;
|
||||
static int do_exit = 0;
|
||||
|
||||
static struct fpusb_bulk_msg imgmsg = {
|
||||
.endpoint = EP_DATA,
|
||||
.data = imgbuf,
|
||||
.length = sizeof(imgbuf),
|
||||
};
|
||||
|
||||
static struct fpusb_bulk_msg irqmsg = {
|
||||
.endpoint = EP_INTR,
|
||||
.data = irqbuf,
|
||||
.length = sizeof(irqbuf),
|
||||
};
|
||||
|
||||
static struct fpusb_dev *find_dpfp_device(void)
|
||||
{
|
||||
struct fpusb_dev *dev;
|
||||
|
||||
fpusb_find_devices();
|
||||
|
||||
for (dev = fpusb_get_devices(); dev; dev = fpusb_dev_next(dev)) {
|
||||
struct usb_dev_descriptor *desc = fpusb_dev_get_descriptor(dev);
|
||||
if (desc->idVendor == 0x05ba && desc->idProduct == 0x000a)
|
||||
return dev;
|
||||
}
|
||||
|
||||
return NULL;
|
||||
}
|
||||
|
||||
static int print_f0_data(void)
|
||||
{
|
||||
unsigned char data[0x10];
|
||||
struct fpusb_ctrl_msg msg = {
|
||||
.requesttype = CTRL_IN,
|
||||
.request = USB_RQ,
|
||||
.value = 0xf0,
|
||||
.index = 0,
|
||||
.length = sizeof(data),
|
||||
.data = data,
|
||||
};
|
||||
int r;
|
||||
unsigned int i;
|
||||
|
||||
r = fpusb_ctrl_msg(devh, &msg, 0);
|
||||
if (r < 0) {
|
||||
fprintf(stderr, "F0 error %d\n", r);
|
||||
return r;
|
||||
}
|
||||
if ((unsigned int) r < sizeof(data)) {
|
||||
fprintf(stderr, "short read (%d)\n", r);
|
||||
return -1;
|
||||
}
|
||||
|
||||
printf("F0 data:");
|
||||
for (i = 0; i < sizeof(data); i++)
|
||||
printf("%02x ", data[i]);
|
||||
printf("\n");
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int get_hwstat(unsigned char *status)
|
||||
{
|
||||
struct fpusb_ctrl_msg msg = {
|
||||
.requesttype = CTRL_IN,
|
||||
.request = USB_RQ,
|
||||
.value = 0x07,
|
||||
.index = 0,
|
||||
.length = 1,
|
||||
.data = status,
|
||||
};
|
||||
int r;
|
||||
|
||||
r = fpusb_ctrl_msg(devh, &msg, 0);
|
||||
if (r < 0) {
|
||||
fprintf(stderr, "read hwstat error %d\n", r);
|
||||
return r;
|
||||
}
|
||||
if ((unsigned int) r < 1) {
|
||||
fprintf(stderr, "short read (%d)\n", r);
|
||||
return -1;
|
||||
}
|
||||
|
||||
printf("hwstat reads %02x\n", *status);
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int set_hwstat(unsigned char data)
|
||||
{
|
||||
int r;
|
||||
struct fpusb_ctrl_msg msg = {
|
||||
.requesttype = CTRL_OUT,
|
||||
.request = USB_RQ,
|
||||
.value = 0x07,
|
||||
.index = 0,
|
||||
.length = 1,
|
||||
.data = &data,
|
||||
};
|
||||
|
||||
printf("set hwstat to %02x\n", data);
|
||||
|
||||
r = fpusb_ctrl_msg(devh, &msg, 0);
|
||||
if (r < 0) {
|
||||
fprintf(stderr, "set hwstat error %d\n", r);
|
||||
return r;
|
||||
}
|
||||
if ((unsigned int) r < 1) {
|
||||
fprintf(stderr, "short write (%d)", r);
|
||||
return -1;
|
||||
}
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int set_mode(unsigned char data)
|
||||
{
|
||||
int r;
|
||||
struct fpusb_ctrl_msg msg = {
|
||||
.requesttype = CTRL_OUT,
|
||||
.request = USB_RQ,
|
||||
.value = 0x4e,
|
||||
.index = 0,
|
||||
.length = 1,
|
||||
.data = &data,
|
||||
};
|
||||
|
||||
printf("set mode %02x\n", data);
|
||||
|
||||
r = fpusb_ctrl_msg(devh, &msg, 0);
|
||||
if (r < 0) {
|
||||
fprintf(stderr, "set mode error %d\n", r);
|
||||
return r;
|
||||
}
|
||||
if ((unsigned int) r < 1) {
|
||||
fprintf(stderr, "short write (%d)", r);
|
||||
return -1;
|
||||
}
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
static void cb_mode_changed(struct fpusb_dev_handle *_devh,
|
||||
struct fpusb_urb_handle *urbh, struct fpusb_ctrl_msg *msg,
|
||||
enum fp_urb_cb_status status, unsigned char *data, int actual_length,
|
||||
void *user_data)
|
||||
{
|
||||
if (status != FP_URB_COMPLETED) {
|
||||
fprintf(stderr, "mode change URB not completed!\n");
|
||||
do_exit = 2;
|
||||
}
|
||||
|
||||
printf("async cb_mode_changed\n");
|
||||
if (next_state() < 0)
|
||||
do_exit = 2;
|
||||
}
|
||||
|
||||
static int set_mode_async(unsigned char data)
|
||||
{
|
||||
fpusb_urb_handle *urbh;
|
||||
struct fpusb_ctrl_msg msg = {
|
||||
.requesttype = CTRL_OUT,
|
||||
.request = USB_RQ,
|
||||
.value = 0x4e,
|
||||
.index = 0,
|
||||
.length = 1,
|
||||
.data = &data,
|
||||
};
|
||||
|
||||
printf("async set mode %02x\n", data);
|
||||
|
||||
urbh = fpusb_submit_ctrl_msg(devh, &msg, cb_mode_changed, NULL, 1000);
|
||||
if (!urbh) {
|
||||
fprintf(stderr, "set mode submit error\n");
|
||||
return -1;
|
||||
}
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int do_sync_intr(unsigned char *data)
|
||||
{
|
||||
struct fpusb_bulk_msg msg = {
|
||||
.endpoint = EP_INTR,
|
||||
.data = data,
|
||||
.length = INTR_LENGTH,
|
||||
};
|
||||
int r;
|
||||
int transferred;
|
||||
|
||||
r = fpusb_intr_msg(devh, &msg, &transferred, 1000);
|
||||
if (r < 0) {
|
||||
fprintf(stderr, "intr error %d\n", r);
|
||||
return r;
|
||||
}
|
||||
if (transferred < INTR_LENGTH) {
|
||||
fprintf(stderr, "short read (%d)\n", r);
|
||||
return -1;
|
||||
}
|
||||
|
||||
printf("recv interrupt %04x\n", *((uint16_t *) data));
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int sync_intr(unsigned char type)
|
||||
{
|
||||
int r;
|
||||
unsigned char data[INTR_LENGTH];
|
||||
|
||||
while (1) {
|
||||
r = do_sync_intr(data);
|
||||
if (r < 0)
|
||||
return r;
|
||||
if (data[0] == type)
|
||||
return 0;
|
||||
}
|
||||
}
|
||||
|
||||
static int save_to_file(unsigned char *data)
|
||||
{
|
||||
FILE *fd;
|
||||
char filename[64];
|
||||
|
||||
sprintf(filename, "finger%d.pgm", img_idx++);
|
||||
fd = fopen(filename, "w");
|
||||
if (!fd)
|
||||
return -1;
|
||||
|
||||
fputs("P5 384 289 255 ", fd);
|
||||
fwrite(data + 64, 1, 384*289, fd);
|
||||
fclose(fd);
|
||||
printf("saved image to %s\n", filename);
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int next_state(void)
|
||||
{
|
||||
int r = 0;
|
||||
printf("old state: %d\n", state);
|
||||
switch (state) {
|
||||
case STATE_AWAIT_IRQ_FINGER_REMOVED:
|
||||
state = STATE_AWAIT_MODE_CHANGE_AWAIT_FINGER_ON;
|
||||
r = set_mode_async(MODE_AWAIT_FINGER_ON);
|
||||
break;
|
||||
case STATE_AWAIT_MODE_CHANGE_AWAIT_FINGER_ON:
|
||||
state = STATE_AWAIT_IRQ_FINGER_DETECTED;
|
||||
break;
|
||||
case STATE_AWAIT_IRQ_FINGER_DETECTED:
|
||||
state = STATE_AWAIT_MODE_CHANGE_CAPTURE;
|
||||
r = set_mode_async(MODE_CAPTURE);
|
||||
break;
|
||||
case STATE_AWAIT_MODE_CHANGE_CAPTURE:
|
||||
state = STATE_AWAIT_IMAGE;
|
||||
break;
|
||||
case STATE_AWAIT_IMAGE:
|
||||
state = STATE_AWAIT_MODE_CHANGE_AWAIT_FINGER_OFF;
|
||||
r = set_mode_async(MODE_AWAIT_FINGER_OFF);
|
||||
break;
|
||||
case STATE_AWAIT_MODE_CHANGE_AWAIT_FINGER_OFF:
|
||||
state = STATE_AWAIT_IRQ_FINGER_REMOVED;
|
||||
break;
|
||||
default:
|
||||
printf("unrecognised state %d\n", state);
|
||||
}
|
||||
if (r < 0) {
|
||||
fprintf(stderr, "error detected changing state");
|
||||
return r;
|
||||
}
|
||||
|
||||
printf("new state: %d\n", state);
|
||||
return 0;
|
||||
}
|
||||
|
||||
static void cb_irq(fpusb_dev_handle *_devh, fpusb_urb_handle *urbh,
|
||||
struct fpusb_bulk_msg *msg, enum fp_urb_cb_status status,
|
||||
int actual_length, void *user_data)
|
||||
{
|
||||
unsigned char irqtype = msg->data[0];
|
||||
|
||||
if (status != FP_URB_COMPLETED) {
|
||||
fprintf(stderr, "irq URB status %d?\n", status);
|
||||
do_exit = 2;
|
||||
return;
|
||||
}
|
||||
|
||||
printf("IRQ callback %02x\n", irqtype);
|
||||
switch (state) {
|
||||
case STATE_AWAIT_IRQ_FINGER_DETECTED:
|
||||
if (irqtype == 0x01) {
|
||||
if (next_state() < 0) {
|
||||
do_exit = 2;
|
||||
return;
|
||||
}
|
||||
} else {
|
||||
printf("finger-on-sensor detected in wrong state!\n");
|
||||
}
|
||||
break;
|
||||
case STATE_AWAIT_IRQ_FINGER_REMOVED:
|
||||
if (irqtype == 0x02) {
|
||||
if (next_state() < 0) {
|
||||
do_exit = 2;
|
||||
return;
|
||||
}
|
||||
} else {
|
||||
printf("finger-on-sensor detected in wrong state!\n");
|
||||
}
|
||||
break;
|
||||
}
|
||||
if (submit_irq_urb() < 0)
|
||||
do_exit = 2;
|
||||
}
|
||||
|
||||
static void cb_img(fpusb_dev_handle *_devh, fpusb_urb_handle *urbh,
|
||||
struct fpusb_bulk_msg *msg, enum fp_urb_cb_status status,
|
||||
int actual_length, void *user_data)
|
||||
{
|
||||
if (status != FP_URB_COMPLETED) {
|
||||
fprintf(stderr, "img URB status %d?\n", status);
|
||||
do_exit = 2;
|
||||
return;
|
||||
}
|
||||
|
||||
printf("Image callback\n");
|
||||
save_to_file(imgbuf);
|
||||
if (next_state() < 0) {
|
||||
do_exit = 2;
|
||||
return;
|
||||
}
|
||||
if (submit_img_urb() < 0)
|
||||
do_exit = 2;
|
||||
}
|
||||
|
||||
static int submit_irq_urb(void)
|
||||
{
|
||||
fpusb_urb_handle_free(irq_urbh);
|
||||
irq_urbh = fpusb_submit_intr_msg(devh, &irqmsg, cb_irq, NULL, 0);
|
||||
return irq_urbh != NULL;
|
||||
}
|
||||
|
||||
static int submit_img_urb(void)
|
||||
{
|
||||
fpusb_urb_handle_free(img_urbh);
|
||||
img_urbh = fpusb_submit_bulk_msg(devh, &imgmsg, cb_img, NULL, 0);
|
||||
return img_urbh != NULL;
|
||||
}
|
||||
|
||||
static int init_capture(void)
|
||||
{
|
||||
int r;
|
||||
|
||||
r = submit_irq_urb();
|
||||
if (r < 0)
|
||||
return r;
|
||||
|
||||
r = submit_img_urb();
|
||||
if (r < 0) {
|
||||
fpusb_urb_handle_cancel_sync(devh, img_urbh);
|
||||
return r;
|
||||
}
|
||||
|
||||
/* start state machine */
|
||||
state = STATE_AWAIT_IRQ_FINGER_REMOVED;
|
||||
return next_state();
|
||||
}
|
||||
|
||||
static int do_init(void)
|
||||
{
|
||||
unsigned char status;
|
||||
int r;
|
||||
|
||||
r = get_hwstat(&status);
|
||||
if (r < 0)
|
||||
return r;
|
||||
|
||||
if (!(status & 0x80)) {
|
||||
r = set_hwstat(status | 0x80);
|
||||
if (r < 0)
|
||||
return r;
|
||||
r = get_hwstat(&status);
|
||||
if (r < 0)
|
||||
return r;
|
||||
}
|
||||
|
||||
status &= ~0x80;
|
||||
r = set_hwstat(status);
|
||||
if (r < 0)
|
||||
return r;
|
||||
|
||||
r = get_hwstat(&status);
|
||||
if (r < 0)
|
||||
return r;
|
||||
|
||||
r = sync_intr(0x56);
|
||||
if (r < 0)
|
||||
return r;
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
static void sighandler(int signum)
|
||||
{
|
||||
do_exit = 1;
|
||||
}
|
||||
|
||||
int main(void)
|
||||
{
|
||||
struct fpusb_dev *dev;
|
||||
struct sigaction sigact;
|
||||
int r = 1;
|
||||
|
||||
r = fpusb_init(0);
|
||||
if (r < 0) {
|
||||
fprintf(stderr, "failed to initialise fpusb\n");
|
||||
exit(1);
|
||||
}
|
||||
|
||||
dev = find_dpfp_device();
|
||||
if (!dev) {
|
||||
fprintf(stderr, "No device found\n");
|
||||
goto out;
|
||||
}
|
||||
printf("found device\n");
|
||||
|
||||
devh = fpusb_dev_open(dev);
|
||||
if (!devh) {
|
||||
fprintf(stderr, "Could not open device\n");
|
||||
goto out;
|
||||
}
|
||||
printf("opened device\n");
|
||||
|
||||
r = fpusb_dev_claim_intf(devh, 0);
|
||||
if (r < 0) {
|
||||
fprintf(stderr, "usb_claim_interface error %d %s\n", r, strerror(-r));
|
||||
goto out;
|
||||
}
|
||||
printf("claimed interface\n");
|
||||
|
||||
r = print_f0_data();
|
||||
if (r < 0)
|
||||
goto out_release;
|
||||
|
||||
r = do_init();
|
||||
if (r < 0)
|
||||
goto out_deinit;
|
||||
|
||||
/* async from here onwards */
|
||||
|
||||
r = init_capture();
|
||||
if (r < 0)
|
||||
goto out_deinit;
|
||||
|
||||
sigact.sa_handler = sighandler;
|
||||
sigemptyset(&sigact.sa_mask);
|
||||
sigact.sa_flags = 0;
|
||||
sigaction(SIGINT, &sigact, NULL);
|
||||
sigaction(SIGTERM, &sigact, NULL);
|
||||
sigaction(SIGQUIT, &sigact, NULL);
|
||||
|
||||
while (!do_exit) {
|
||||
r = fpusb_poll();
|
||||
if (r < 0)
|
||||
goto out_deinit;
|
||||
}
|
||||
|
||||
printf("shutting down...\n");
|
||||
|
||||
r = fpusb_urb_handle_cancel_sync(devh, irq_urbh);
|
||||
if (r < 0)
|
||||
goto out_deinit;
|
||||
|
||||
r = fpusb_urb_handle_cancel_sync(devh, img_urbh);
|
||||
if (r < 0)
|
||||
goto out_deinit;
|
||||
|
||||
if (do_exit == 1)
|
||||
r = 0;
|
||||
else
|
||||
r = 1;
|
||||
|
||||
out_deinit:
|
||||
fpusb_urb_handle_free(img_urbh);
|
||||
fpusb_urb_handle_free(irq_urbh);
|
||||
set_mode(0);
|
||||
set_hwstat(0x80);
|
||||
out_release:
|
||||
fpusb_dev_release_intf(devh, 0);
|
||||
out:
|
||||
fpusb_dev_close(devh);
|
||||
fpusb_exit();
|
||||
return r >= 0 ? r : -r;
|
||||
}
|
||||
|
||||
46
examples/lsusb.c
Normal file
46
examples/lsusb.c
Normal file
|
|
@ -0,0 +1,46 @@
|
|||
/*
|
||||
* fpusb example program to list devices on the bus
|
||||
* Copyright (C) 2007 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 <stdio.h>
|
||||
|
||||
#include <libfpusb/fpusb.h>
|
||||
|
||||
void print_devs(fpusb_dev *devs)
|
||||
{
|
||||
fpusb_dev *dev;
|
||||
|
||||
for (dev = devs; dev; dev = fpusb_dev_next(dev)) {
|
||||
struct usb_dev_descriptor *desc = fpusb_dev_get_descriptor(dev);
|
||||
printf("%04x:%04x\n", desc->idVendor, desc->idProduct);
|
||||
}
|
||||
}
|
||||
|
||||
int main(void)
|
||||
{
|
||||
fpusb_dev *devs;
|
||||
fpusb_init(0);
|
||||
fpusb_find_devices();
|
||||
devs = fpusb_get_devices();
|
||||
|
||||
print_devs(devs);
|
||||
|
||||
fpusb_exit();
|
||||
return 0;
|
||||
}
|
||||
|
||||
11
fpusb.pc.in
Normal file
11
fpusb.pc.in
Normal file
|
|
@ -0,0 +1,11 @@
|
|||
prefix=@prefix@
|
||||
exec_prefix=@exec_prefix@
|
||||
libdir=@libdir@
|
||||
includedir=@includedir@
|
||||
|
||||
Name: fpusb
|
||||
Description: C API for USB device access from Linux userspace
|
||||
Version: @VERSION@
|
||||
Libs: -L${libdir} -lfpusb
|
||||
Cflags: -I${includedir}/fpusb
|
||||
|
||||
7
libfpusb/Makefile.am
Normal file
7
libfpusb/Makefile.am
Normal file
|
|
@ -0,0 +1,7 @@
|
|||
lib_LTLIBRARIES = libfpusb.la
|
||||
|
||||
libfpusb_la_CFLAGS = -fvisibility=hidden $(AM_CFLAGS)
|
||||
libfpusb_la_SOURCES = signalfd.h fpusbi.h usbfs.h core.c io.c
|
||||
libfpusb_la_LIBADD = -lrt
|
||||
|
||||
pkginclude_HEADERS = fpusb.h
|
||||
302
libfpusb/core.c
Normal file
302
libfpusb/core.c
Normal file
|
|
@ -0,0 +1,302 @@
|
|||
/*
|
||||
* Core functions for libfpusb
|
||||
* Copyright (C) 2007 Daniel Drake <dsd@gentoo.org>
|
||||
*
|
||||
* Portions based on libusb-0.1
|
||||
* Copyright (c) 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
|
||||
*/
|
||||
|
||||
#include <config.h>
|
||||
|
||||
#include <dirent.h>
|
||||
#include <errno.h>
|
||||
#include <fcntl.h>
|
||||
#include <features.h>
|
||||
#include <stdarg.h>
|
||||
#include <stdio.h>
|
||||
#include <stdlib.h>
|
||||
#include <string.h>
|
||||
#include <sys/ioctl.h>
|
||||
#include <sys/types.h>
|
||||
#include <sys/stat.h>
|
||||
#include <unistd.h>
|
||||
|
||||
#include "fpusb.h"
|
||||
#include "fpusbi.h"
|
||||
|
||||
static struct list_head usb_devs;
|
||||
struct list_head open_devs;
|
||||
|
||||
static int parse_descriptor(unsigned char *source, char *descriptor, void *dest)
|
||||
{
|
||||
unsigned char *sp = source, *dp = dest;
|
||||
uint16_t w;
|
||||
uint32_t d;
|
||||
char *cp;
|
||||
|
||||
for (cp = descriptor; *cp; cp++) {
|
||||
switch (*cp) {
|
||||
case 'b': /* 8-bit byte */
|
||||
*dp++ = *sp++;
|
||||
break;
|
||||
case 'w': /* 16-bit word, convert from little endian to CPU */
|
||||
w = (sp[1] << 8) | sp[0]; sp += 2;
|
||||
dp += ((unsigned long)dp & 1); /* Align to word boundary */
|
||||
*((uint16_t *)dp) = w; dp += 2;
|
||||
break;
|
||||
case 'd': /* 32-bit dword, convert from little endian to CPU */
|
||||
d = (sp[3] << 24) | (sp[2] << 16) | (sp[1] << 8) | sp[0]; sp += 4;
|
||||
dp += ((unsigned long)dp & 2); /* Align to dword boundary */
|
||||
*((uint32_t *)dp) = d; dp += 4;
|
||||
break;
|
||||
case 'W': /* 16-bit word, keep CPU endianess */
|
||||
dp += ((unsigned long)dp & 1); /* Align to word boundary */
|
||||
memcpy(dp, sp, 2); sp += 2; dp += 2;
|
||||
break;
|
||||
case 'D': /* 32-bit dword, keep CPU endianess */
|
||||
dp += ((unsigned long)dp & 2); /* Align to dword boundary */
|
||||
memcpy(dp, sp, 4); sp += 4; dp += 4;
|
||||
break;
|
||||
}
|
||||
}
|
||||
|
||||
return sp - source;
|
||||
}
|
||||
|
||||
static int scan_device(char *busdir, const char *devnum)
|
||||
{
|
||||
char path[PATH_MAX + 1];
|
||||
unsigned char raw_desc[DEVICE_DESC_LENGTH];
|
||||
struct fpusb_dev *dev = malloc(sizeof(*dev));
|
||||
int fd;
|
||||
int r;
|
||||
|
||||
snprintf(path, PATH_MAX, "%s/%s", busdir, devnum);
|
||||
fp_dbg("%s", path);
|
||||
fd = open(path, O_RDWR);
|
||||
if (!fd) {
|
||||
fp_dbg("open '%s' failed, ret=%d errno=%d", path, fd, errno);
|
||||
return -1;
|
||||
}
|
||||
|
||||
r = read(fd, raw_desc, DEVICE_DESC_LENGTH);
|
||||
if (r < 0) {
|
||||
fp_err("read failed ret=%d errno=%d", r, errno);
|
||||
return r;
|
||||
}
|
||||
/* FIXME: short read handling? */
|
||||
|
||||
parse_descriptor(raw_desc, "bbWbbbbWWWbbbb", &dev->desc);
|
||||
fp_dbg("found device %04x:%04x", dev->desc.idVendor, dev->desc.idProduct);
|
||||
dev->nodepath = strdup(path);
|
||||
list_add(&dev->list, &usb_devs);
|
||||
|
||||
close(fd);
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int scan_busdir(const char *busnum)
|
||||
{
|
||||
DIR *dir;
|
||||
char dirpath[PATH_MAX + 1];
|
||||
struct dirent *entry;
|
||||
|
||||
snprintf(dirpath, PATH_MAX, "%s/%s", USBFS_PATH, busnum);
|
||||
fp_dbg("%s", dirpath);
|
||||
dir = opendir(dirpath);
|
||||
if (!dir) {
|
||||
fp_err("opendir '%s' failed, errno=%d", dirpath, errno);
|
||||
return -1;
|
||||
}
|
||||
|
||||
while (entry = readdir(dir)) {
|
||||
if (entry->d_name[0] == '.')
|
||||
continue;
|
||||
/* deliberately ignoring errors due to valid unplug race conditions */
|
||||
scan_device(dirpath, entry->d_name);
|
||||
}
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
API_EXPORTED int fpusb_find_devices(void)
|
||||
{
|
||||
DIR *busses;
|
||||
struct dirent *entry;
|
||||
fp_dbg("");
|
||||
|
||||
busses = opendir(USBFS_PATH);
|
||||
if (!busses) {
|
||||
fp_err("opendir busses failed errno=%d", errno);
|
||||
return -1;
|
||||
}
|
||||
|
||||
while (entry = readdir(busses)) {
|
||||
if (entry->d_name[0] == '.')
|
||||
continue;
|
||||
/* deliberately ignoring errors, valid race conditions exist
|
||||
* e.g. unplugging of hubs in the middle of this loop*/
|
||||
scan_busdir(entry->d_name);
|
||||
}
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
API_EXPORTED struct fpusb_dev *fpusb_get_devices(void)
|
||||
{
|
||||
if (list_empty(&usb_devs))
|
||||
return NULL;
|
||||
return list_entry(usb_devs.next, struct fpusb_dev, list);
|
||||
}
|
||||
|
||||
API_EXPORTED struct fpusb_dev *fpusb_dev_next(struct fpusb_dev *dev)
|
||||
{
|
||||
struct list_head *head = &dev->list;
|
||||
if (!head || head->next == &usb_devs)
|
||||
return NULL;
|
||||
return list_entry(head->next, struct fpusb_dev, list);
|
||||
}
|
||||
|
||||
API_EXPORTED struct usb_dev_descriptor *fpusb_dev_get_descriptor(
|
||||
struct fpusb_dev *dev)
|
||||
{
|
||||
return &dev->desc;
|
||||
}
|
||||
|
||||
API_EXPORTED struct fpusb_dev_handle *fpusb_dev_open(struct fpusb_dev *dev)
|
||||
{
|
||||
struct fpusb_dev_handle *devh;
|
||||
int fd;
|
||||
fp_dbg("open %04x:%04x", dev->desc.idVendor, dev->desc.idProduct);
|
||||
|
||||
fd = open(dev->nodepath, O_RDWR);
|
||||
if (!fd) {
|
||||
fp_err("open failed, code %d errno %d", fd, errno);
|
||||
return NULL;
|
||||
}
|
||||
|
||||
devh = malloc(sizeof(*devh));
|
||||
if (!devh) {
|
||||
close(fd);
|
||||
return NULL;
|
||||
}
|
||||
|
||||
devh->fd = fd;
|
||||
devh->dev = dev;
|
||||
list_add(&devh->list, &open_devs);
|
||||
return devh;
|
||||
}
|
||||
|
||||
static void do_close(struct fpusb_dev_handle *devh)
|
||||
{
|
||||
close(devh->fd);
|
||||
}
|
||||
|
||||
API_EXPORTED void fpusb_dev_close(struct fpusb_dev_handle *devh)
|
||||
{
|
||||
if (!devh)
|
||||
return;
|
||||
fp_dbg("");
|
||||
|
||||
list_del(&devh->list);
|
||||
do_close(devh);
|
||||
free(devh);
|
||||
}
|
||||
|
||||
API_EXPORTED int fpusb_dev_claim_intf(struct fpusb_dev_handle *dev,
|
||||
int iface)
|
||||
{
|
||||
int r;
|
||||
fp_dbg("interface %d", iface);
|
||||
|
||||
r = ioctl(dev->fd, IOCTL_USB_CLAIMINTF, &iface);
|
||||
if (r < 0)
|
||||
fp_err("claim interface failed, error %d", r);
|
||||
return r;
|
||||
}
|
||||
|
||||
API_EXPORTED int fpusb_dev_release_intf(struct fpusb_dev_handle *dev,
|
||||
int iface)
|
||||
{
|
||||
int r;
|
||||
fp_dbg("interface %d", iface);
|
||||
|
||||
r = ioctl(dev->fd, IOCTL_USB_RELEASEINTF, &iface);
|
||||
if (r < 0)
|
||||
fp_err("release interface failed, error %d", r);
|
||||
return r;
|
||||
}
|
||||
|
||||
API_EXPORTED int fpusb_init(int signum)
|
||||
{
|
||||
/* FIXME: find correct usb node path */
|
||||
fp_dbg("");
|
||||
list_init(&usb_devs);
|
||||
list_init(&open_devs);
|
||||
return fpi_io_init(signum);
|
||||
}
|
||||
|
||||
API_EXPORTED void fpusb_exit(void)
|
||||
{
|
||||
struct fpusb_dev_handle *devh;
|
||||
fp_dbg("");
|
||||
if (!list_empty(&open_devs)) {
|
||||
fp_dbg("naughty app left some devices open!\n");
|
||||
list_for_each_entry(devh, &open_devs, list)
|
||||
do_close(devh);
|
||||
}
|
||||
fpi_io_exit();
|
||||
}
|
||||
|
||||
void fpi_log(enum fpi_log_level level, const char *function,
|
||||
const char *format, ...)
|
||||
{
|
||||
va_list args;
|
||||
FILE *stream = stdout;
|
||||
const char *prefix;
|
||||
|
||||
switch (level) {
|
||||
case LOG_LEVEL_INFO:
|
||||
prefix = "info";
|
||||
break;
|
||||
case LOG_LEVEL_WARNING:
|
||||
stream = stderr;
|
||||
prefix = "warning";
|
||||
break;
|
||||
case LOG_LEVEL_ERROR:
|
||||
stream = stderr;
|
||||
prefix = "error";
|
||||
break;
|
||||
case LOG_LEVEL_DEBUG:
|
||||
stream = stderr;
|
||||
prefix = "debug";
|
||||
break;
|
||||
default:
|
||||
stream = stderr;
|
||||
prefix = "unknown";
|
||||
break;
|
||||
}
|
||||
|
||||
fprintf(stream, "fpusb:%s [%s] ", prefix, function);
|
||||
|
||||
va_start (args, format);
|
||||
vfprintf(stream, format, args);
|
||||
va_end (args);
|
||||
|
||||
fprintf(stream, "\n");
|
||||
}
|
||||
|
||||
199
libfpusb/fpusb.h
Normal file
199
libfpusb/fpusb.h
Normal file
|
|
@ -0,0 +1,199 @@
|
|||
/*
|
||||
* Public libfpusb header file
|
||||
* Copyright (C) 2007 Daniel Drake <dsd@gentoo.org>
|
||||
*
|
||||
* Portions based on libusb-0.1
|
||||
* Copyright (c) 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 __FPUSB_H__
|
||||
#define __FPUSB_H__
|
||||
|
||||
#include <stdint.h>
|
||||
#include <sys/time.h>
|
||||
|
||||
/* standard USB stuff */
|
||||
|
||||
/* Device and/or Interface Class codes */
|
||||
#define USB_CLASS_PER_INTERFACE 0 /* for DeviceClass */
|
||||
#define USB_CLASS_AUDIO 1
|
||||
#define USB_CLASS_COMM 2
|
||||
#define USB_CLASS_HID 3
|
||||
#define USB_CLASS_PRINTER 7
|
||||
#define USB_CLASS_PTP 6
|
||||
#define USB_CLASS_MASS_STORAGE 8
|
||||
#define USB_CLASS_HUB 9
|
||||
#define USB_CLASS_DATA 10
|
||||
#define USB_CLASS_VENDOR_SPEC 0xff
|
||||
|
||||
/* Descriptor types */
|
||||
#define USB_DT_DEVICE 0x01
|
||||
#define USB_DT_CONFIG 0x02
|
||||
#define USB_DT_STRING 0x03
|
||||
#define USB_DT_INTERFACE 0x04
|
||||
#define USB_DT_ENDPOINT 0x05
|
||||
#define USB_DT_HID 0x21
|
||||
#define USB_DT_REPORT 0x22
|
||||
#define USB_DT_PHYSICAL 0x23
|
||||
#define USB_DT_HUB 0x29
|
||||
|
||||
/* Descriptor sizes per descriptor type */
|
||||
#define USB_DT_DEVICE_SIZE 18
|
||||
#define USB_DT_CONFIG_SIZE 9
|
||||
#define USB_DT_INTERFACE_SIZE 9
|
||||
#define USB_DT_ENDPOINT_SIZE 7
|
||||
#define USB_DT_ENDPOINT_AUDIO_SIZE 9 /* Audio extension */
|
||||
#define USB_DT_HUB_NONVAR_SIZE 7
|
||||
|
||||
#define USB_ENDPOINT_ADDRESS_MASK 0x0f /* in bEndpointAddress */
|
||||
#define USB_ENDPOINT_DIR_MASK 0x80
|
||||
|
||||
#define USB_ENDPOINT_IN 0x80
|
||||
#define USB_ENDPOINT_OUT 0x00
|
||||
|
||||
#define USB_ENDPOINT_TYPE_MASK 0x03 /* in bmAttributes */
|
||||
#define USB_ENDPOINT_TYPE_CONTROL 0
|
||||
#define USB_ENDPOINT_TYPE_ISOCHRONOUS 1
|
||||
#define USB_ENDPOINT_TYPE_BULK 2
|
||||
#define USB_ENDPOINT_TYPE_INTERRUPT 3
|
||||
|
||||
/* Standard requests */
|
||||
#define USB_REQ_GET_STATUS 0x00
|
||||
#define USB_REQ_CLEAR_FEATURE 0x01
|
||||
/* 0x02 is reserved */
|
||||
#define USB_REQ_SET_FEATURE 0x03
|
||||
/* 0x04 is reserved */
|
||||
#define USB_REQ_SET_ADDRESS 0x05
|
||||
#define USB_REQ_GET_DESCRIPTOR 0x06
|
||||
#define USB_REQ_SET_DESCRIPTOR 0x07
|
||||
#define USB_REQ_GET_CONFIGURATION 0x08
|
||||
#define USB_REQ_SET_CONFIGURATION 0x09
|
||||
#define USB_REQ_GET_INTERFACE 0x0A
|
||||
#define USB_REQ_SET_INTERFACE 0x0B
|
||||
#define USB_REQ_SYNCH_FRAME 0x0C
|
||||
|
||||
#define USB_TYPE_STANDARD (0x00 << 5)
|
||||
#define USB_TYPE_CLASS (0x01 << 5)
|
||||
#define USB_TYPE_VENDOR (0x02 << 5)
|
||||
#define USB_TYPE_RESERVED (0x03 << 5)
|
||||
|
||||
#define USB_RECIP_DEVICE 0x00
|
||||
#define USB_RECIP_INTERFACE 0x01
|
||||
#define USB_RECIP_ENDPOINT 0x02
|
||||
#define USB_RECIP_OTHER 0x03
|
||||
|
||||
struct usb_dev_descriptor {
|
||||
uint8_t bLength;
|
||||
uint8_t bDescriptorType;
|
||||
uint16_t bcdUSB;
|
||||
uint8_t bDeviceClass;
|
||||
uint8_t bDeviceSubClass;
|
||||
uint8_t bDeviceProtocol;
|
||||
uint8_t bMaxPacketSize0;
|
||||
uint16_t idVendor;
|
||||
uint16_t idProduct;
|
||||
uint16_t bcdDevice;
|
||||
uint8_t iManufacturer;
|
||||
uint8_t iProduct;
|
||||
uint8_t iSerialNumber;
|
||||
uint8_t bNumConfigurations;
|
||||
};
|
||||
|
||||
/* fpusb */
|
||||
|
||||
struct fpusb_dev;
|
||||
typedef struct fpusb_dev fpusb_dev;
|
||||
|
||||
struct fpusb_dev_handle;
|
||||
typedef struct fpusb_dev_handle fpusb_dev_handle;
|
||||
|
||||
struct fpusb_urb_handle;
|
||||
typedef struct fpusb_urb_handle fpusb_urb_handle;
|
||||
|
||||
enum fp_urb_cb_status {
|
||||
FP_URB_SILENT_COMPLETION = 0,
|
||||
FP_URB_COMPLETED,
|
||||
FP_URB_TIMEOUT,
|
||||
FP_URB_CANCELLED,
|
||||
};
|
||||
|
||||
struct fpusb_ctrl_msg {
|
||||
uint8_t requesttype;
|
||||
uint8_t request;
|
||||
uint16_t value;
|
||||
uint16_t index;
|
||||
uint16_t length;
|
||||
unsigned char *data;
|
||||
};
|
||||
|
||||
typedef void (*fpusb_ctrl_cb_fn)(fpusb_dev_handle *devh, fpusb_urb_handle *urbh,
|
||||
struct fpusb_ctrl_msg *msg, enum fp_urb_cb_status status,
|
||||
unsigned char *data, int actual_length, void *user_data);
|
||||
|
||||
struct fpusb_bulk_msg {
|
||||
unsigned char endpoint;
|
||||
unsigned char *data;
|
||||
int length;
|
||||
};
|
||||
|
||||
typedef void (*fpusb_bulk_cb_fn)(fpusb_dev_handle *devh, fpusb_urb_handle *urbh,
|
||||
struct fpusb_bulk_msg *msg, enum fp_urb_cb_status status,
|
||||
int actual_length, void *user_data);
|
||||
|
||||
int fpusb_init(int signum);
|
||||
void fpusb_exit(void);
|
||||
|
||||
int fpusb_find_devices(void);
|
||||
fpusb_dev *fpusb_get_devices(void);
|
||||
struct usb_dev_descriptor *fpusb_dev_get_descriptor(fpusb_dev *dev);
|
||||
fpusb_dev *fpusb_dev_next(fpusb_dev *dev);
|
||||
|
||||
fpusb_dev_handle *fpusb_dev_open(fpusb_dev *dev);
|
||||
void fpusb_dev_close(fpusb_dev_handle *devh);
|
||||
int fpusb_dev_claim_intf(fpusb_dev_handle *dev, int iface);
|
||||
int fpusb_dev_release_intf(fpusb_dev_handle *dev, int iface);
|
||||
|
||||
/* async I/O */
|
||||
|
||||
fpusb_urb_handle *fpusb_submit_ctrl_msg(fpusb_dev_handle *devh,
|
||||
struct fpusb_ctrl_msg *msg, fpusb_ctrl_cb_fn callback, void *user_data,
|
||||
unsigned int timeout);
|
||||
fpusb_urb_handle *fpusb_submit_bulk_msg(fpusb_dev_handle *devh,
|
||||
struct fpusb_bulk_msg *msg, fpusb_bulk_cb_fn callback, void *user_data,
|
||||
unsigned int timeout);
|
||||
fpusb_urb_handle *fpusb_submit_intr_msg(fpusb_dev_handle *devh,
|
||||
struct fpusb_bulk_msg *msg, fpusb_bulk_cb_fn callback, void *user_data,
|
||||
unsigned int timeout);
|
||||
|
||||
int fpusb_urb_handle_cancel(fpusb_dev_handle *devh, fpusb_urb_handle *urbh);
|
||||
int fpusb_urb_handle_cancel_sync(fpusb_dev_handle *devh,
|
||||
fpusb_urb_handle *urbh);
|
||||
void fpusb_urb_handle_free(fpusb_urb_handle *urbh);
|
||||
|
||||
int fpusb_poll_timeout(struct timeval *tv);
|
||||
int fpusb_poll(void);
|
||||
|
||||
/* sync I/O */
|
||||
|
||||
int fpusb_ctrl_msg(fpusb_dev_handle *devh, struct fpusb_ctrl_msg *msg,
|
||||
unsigned int timeout);
|
||||
int fpusb_bulk_msg(fpusb_dev_handle *devh, struct fpusb_bulk_msg *msg,
|
||||
int *transferred, unsigned int timeout);
|
||||
int fpusb_intr_msg(fpusb_dev_handle *devh, struct fpusb_bulk_msg *msg,
|
||||
int *transferred, unsigned int timeout);
|
||||
|
||||
#endif
|
||||
200
libfpusb/fpusbi.h
Normal file
200
libfpusb/fpusbi.h
Normal file
|
|
@ -0,0 +1,200 @@
|
|||
/*
|
||||
* Internal header for libfpusb
|
||||
* Copyright (C) 2007 Daniel Drake <dsd@gentoo.org>
|
||||
*
|
||||
* Portions based on libusb-0.1
|
||||
* Copyright (c) 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 __FPUSBI_H__
|
||||
#define __FPUSBI_H__
|
||||
|
||||
#include <config.h>
|
||||
|
||||
#include <endian.h>
|
||||
#include <stddef.h>
|
||||
#include <sys/ioctl.h>
|
||||
#include <time.h>
|
||||
|
||||
#include <fpusb.h>
|
||||
#include <usbfs.h>
|
||||
|
||||
#define USBFS_PATH "/dev/bus/usb"
|
||||
#define DEVICE_DESC_LENGTH 18
|
||||
|
||||
struct list_head {
|
||||
struct list_head *prev, *next;
|
||||
};
|
||||
|
||||
/* Get an entry from the list
|
||||
* ptr - the address of this list_head element in "type"
|
||||
* type - the data type that contains "member"
|
||||
* member - the list_head element in "type"
|
||||
*/
|
||||
#define list_entry(ptr, type, member) \
|
||||
((type *)((char *)(ptr) - (unsigned long)(&((type *)0L)->member)))
|
||||
|
||||
/* Get each entry from a list
|
||||
* pos - A structure pointer has a "member" element
|
||||
* head - list head
|
||||
* member - the list_head element in "pos"
|
||||
*/
|
||||
#define list_for_each_entry(pos, head, member) \
|
||||
for (pos = list_entry((head)->next, typeof(*pos), member); \
|
||||
&pos->member != (head); \
|
||||
pos = list_entry(pos->member.next, typeof(*pos), member))
|
||||
|
||||
#define list_for_each_entry_safe(pos, n, head, member) \
|
||||
for (pos = list_entry((head)->next, typeof(*pos), member), \
|
||||
n = list_entry(pos->member.next, typeof(*pos), member); \
|
||||
&pos->member != (head); \
|
||||
pos = n, n = list_entry(n->member.next, typeof(*n), member))
|
||||
|
||||
#define list_empty(entry) ((entry)->next == (entry))
|
||||
|
||||
static inline void list_init(struct list_head *entry)
|
||||
{
|
||||
entry->prev = entry->next = entry;
|
||||
}
|
||||
|
||||
static inline void list_add(struct list_head *entry, struct list_head *head)
|
||||
{
|
||||
entry->next = head->next;
|
||||
entry->prev = head;
|
||||
|
||||
head->next->prev = entry;
|
||||
head->next = entry;
|
||||
}
|
||||
|
||||
static inline void list_add_tail(struct list_head *entry,
|
||||
struct list_head *head)
|
||||
{
|
||||
entry->next = head;
|
||||
entry->prev = head->prev;
|
||||
|
||||
head->prev->next = entry;
|
||||
head->prev = entry;
|
||||
}
|
||||
|
||||
static inline void list_del(struct list_head *entry)
|
||||
{
|
||||
entry->next->prev = entry->prev;
|
||||
entry->prev->next = entry->next;
|
||||
}
|
||||
|
||||
#define container_of(ptr, type, member) ({ \
|
||||
const typeof( ((type *)0)->member ) *__mptr = (ptr); \
|
||||
(type *)( (char *)__mptr - offsetof(type,member) );})
|
||||
|
||||
#define bswap16(x) (((x & 0xff) << 8) | (x >> 8))
|
||||
#if __BYTE_ORDER == __LITTLE_ENDIAN
|
||||
#define cpu_to_le16(x) (x)
|
||||
#define le16_to_cpu(x) (x)
|
||||
#elif __BYTE_ORDER == __BIG_ENDIAN
|
||||
#define le16_to_cpu(x) bswap16(x)
|
||||
#define cpu_to_le16(x) bswap16(x)
|
||||
#else
|
||||
#error "Unrecognized endianness"
|
||||
#endif
|
||||
|
||||
#define MIN(a, b) ((a) < (b) ? (a) : (b))
|
||||
#define MAX(a, b) ((a) > (b) ? (a) : (b))
|
||||
|
||||
#define TIMESPEC_IS_SET(ts) ((ts)->tv_sec != 0 || (ts)->tv_nsec != 0)
|
||||
|
||||
enum fpi_log_level {
|
||||
LOG_LEVEL_DEBUG,
|
||||
LOG_LEVEL_INFO,
|
||||
LOG_LEVEL_WARNING,
|
||||
LOG_LEVEL_ERROR,
|
||||
};
|
||||
|
||||
void fpi_log(enum fpi_log_level, const char *function, const char *format, ...);
|
||||
|
||||
#ifdef ENABLE_LOGGING
|
||||
#define _fpi_log(level, fmt...) fpi_log(level, __FUNCTION__, fmt)
|
||||
#else
|
||||
#define _fpi_log(level, fmt...)
|
||||
#endif
|
||||
|
||||
#ifdef ENABLE_DEBUG_LOGGING
|
||||
#define fp_dbg(fmt...) _fpi_log(LOG_LEVEL_DEBUG, fmt)
|
||||
#else
|
||||
#define fp_dbg(fmt...)
|
||||
#endif
|
||||
|
||||
#define fp_info(fmt...) _fpi_log(LOG_LEVEL_INFO, fmt)
|
||||
#define fp_warn(fmt...) _fpi_log(LOG_LEVEL_WARNING, fmt)
|
||||
#define fp_err(fmt...) _fpi_log(LOG_LEVEL_ERROR, fmt)
|
||||
|
||||
struct fpusb_dev {
|
||||
struct list_head list;
|
||||
char *nodepath;
|
||||
struct usb_dev_descriptor desc;
|
||||
};
|
||||
|
||||
struct fpusb_dev_handle {
|
||||
struct list_head list;
|
||||
struct fpusb_dev *dev;
|
||||
int fd;
|
||||
};
|
||||
|
||||
enum fpusb_urb_type {
|
||||
FPUSB_URB_CONTROL,
|
||||
FPUSB_URB_BULK,
|
||||
};
|
||||
|
||||
#define FPUSB_URBH_DATA_BELONGS_TO_USER (1<<0)
|
||||
#define FPUSB_URBH_SYNC_CANCELLED (1<<1)
|
||||
#define FPUSB_URBH_TIMED_OUT (1<<2)
|
||||
|
||||
struct fpusb_urb_handle {
|
||||
struct fpusb_dev_handle *devh;
|
||||
struct usb_urb urb;
|
||||
struct list_head list;
|
||||
struct timespec timeout;
|
||||
timer_t timer;
|
||||
unsigned char urb_type;
|
||||
unsigned char endpoint;
|
||||
void *msg;
|
||||
int transfer_len;
|
||||
int transferred;
|
||||
unsigned char *buffer;
|
||||
void *callback;
|
||||
void *user_data;
|
||||
uint8_t flags;
|
||||
};
|
||||
|
||||
/* bus structures */
|
||||
|
||||
struct usb_ctrl_setup {
|
||||
uint8_t bRequestType;
|
||||
uint8_t bRequest;
|
||||
uint16_t wValue;
|
||||
uint16_t wIndex;
|
||||
uint16_t wLength;
|
||||
} __attribute__((packed));
|
||||
|
||||
/* shared data and functions */
|
||||
|
||||
extern struct list_head open_devs;
|
||||
|
||||
int fpi_io_init(int _signum);
|
||||
void fpi_io_exit(void);
|
||||
|
||||
#endif
|
||||
|
||||
700
libfpusb/io.c
Normal file
700
libfpusb/io.c
Normal file
|
|
@ -0,0 +1,700 @@
|
|||
/*
|
||||
* I/O functions for libfpusb
|
||||
* Copyright (C) 2007 Daniel Drake <dsd@gentoo.org>
|
||||
*
|
||||
* Portions based on libusb-0.1
|
||||
* Copyright (c) 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
|
||||
*/
|
||||
|
||||
#include <config.h>
|
||||
|
||||
#include <errno.h>
|
||||
#include <signal.h>
|
||||
#include <stdint.h>
|
||||
#include <string.h>
|
||||
#include <stdlib.h>
|
||||
#include <sys/select.h>
|
||||
#include <sys/time.h>
|
||||
#include <time.h>
|
||||
#include <unistd.h>
|
||||
|
||||
/* signalfd() support is present in glibc-2.7 onwards, but glibc-2.7 contains
|
||||
* a bug where the header is neither installed or compilable. This will be
|
||||
* fixed for glibc-2.8. */
|
||||
#if __GLIBC_PREREQ(2, 8)
|
||||
#include <sys/signalfd.h>
|
||||
#else
|
||||
#include "signalfd.h"
|
||||
#endif
|
||||
|
||||
#include "fpusbi.h"
|
||||
|
||||
static int sigfd;
|
||||
static int signum;
|
||||
|
||||
/* this is a list of in-flight fp_urb_handles, sorted by timeout expiration.
|
||||
* URBs to timeout the soonest are placed at the beginning of the list, URBs
|
||||
* that will time out later are placed after, and urbs with infinite timeout
|
||||
* are always placed at the very end. */
|
||||
static struct list_head flying_urbs;
|
||||
|
||||
static int setup_signalfd(int _signum)
|
||||
{
|
||||
sigset_t sigset;
|
||||
if (_signum == 0)
|
||||
_signum = SIGRTMIN;
|
||||
fp_dbg("signal %d", _signum);
|
||||
|
||||
sigemptyset(&sigset);
|
||||
sigaddset(&sigset, _signum);
|
||||
sigfd = signalfd(-1, &sigset, 0);
|
||||
if (sigfd < 0) {
|
||||
fp_err("signalfd failed, code=%d errno=%d", sigfd, errno);
|
||||
return sigfd;
|
||||
}
|
||||
fp_dbg("got signalfd %d", sigfd);
|
||||
signum = _signum;
|
||||
|
||||
sigemptyset(&sigset);
|
||||
sigaddset(&sigset, _signum);
|
||||
return sigprocmask(SIG_BLOCK, &sigset, NULL);
|
||||
}
|
||||
|
||||
int fpi_io_init(int _signum)
|
||||
{
|
||||
list_init(&flying_urbs);
|
||||
return setup_signalfd(signum);
|
||||
}
|
||||
|
||||
void fpi_io_exit(void)
|
||||
{
|
||||
close(sigfd);
|
||||
}
|
||||
|
||||
static int calculate_timeout(struct fpusb_urb_handle *urbh,
|
||||
unsigned int timeout)
|
||||
{
|
||||
int r;
|
||||
struct timespec current_time;
|
||||
struct sigevent sigevt = {
|
||||
.sigev_notify = SIGEV_SIGNAL,
|
||||
.sigev_signo = signum,
|
||||
};
|
||||
struct itimerspec itspec;
|
||||
struct timespec *it_value = &itspec.it_value;
|
||||
|
||||
if (!timeout)
|
||||
return 0;
|
||||
|
||||
r = clock_gettime(CLOCK_MONOTONIC, ¤t_time);
|
||||
if (r < 0) {
|
||||
fp_err("failed to read monotonic clock, errno=%d", errno);
|
||||
return r;
|
||||
}
|
||||
|
||||
r = timer_create(CLOCK_MONOTONIC, &sigevt, &urbh->timer);
|
||||
if (r < 0) {
|
||||
fp_err("failed to create monotonic timer");
|
||||
return r;
|
||||
}
|
||||
|
||||
memset(&itspec, 0, sizeof(itspec));
|
||||
it_value->tv_sec = current_time.tv_sec + (timeout / 1000);
|
||||
it_value->tv_nsec = current_time.tv_nsec +
|
||||
((timeout % 1000) * 1000000);
|
||||
|
||||
if (it_value->tv_nsec > 1000000000) {
|
||||
it_value->tv_nsec -= 1000000000;
|
||||
it_value->tv_sec++;
|
||||
}
|
||||
|
||||
r = timer_settime(&urbh->timer, TIMER_ABSTIME, &itspec, NULL);
|
||||
if (r < 0) {
|
||||
fp_err("failed to arm monotonic timer");
|
||||
return r;
|
||||
}
|
||||
|
||||
urbh->timeout = itspec.it_value;
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
static void add_to_flying_list(struct fpusb_urb_handle *urbh)
|
||||
{
|
||||
struct fpusb_urb_handle *cur;
|
||||
struct timespec *timeout = &urbh->timeout;
|
||||
|
||||
/* if we have no other flying urbs, start the list with this one */
|
||||
if (list_empty(&flying_urbs)) {
|
||||
list_add(&urbh->list, &flying_urbs);
|
||||
return;
|
||||
}
|
||||
|
||||
/* if we have infinite timeout, append to end of list */
|
||||
if (!TIMESPEC_IS_SET(timeout)) {
|
||||
list_add_tail(&urbh->list, &flying_urbs);
|
||||
return;
|
||||
}
|
||||
|
||||
/* otherwise, find appropriate place in list */
|
||||
list_for_each_entry(cur, &flying_urbs, list) {
|
||||
/* find first timeout that occurs after the urbh in question */
|
||||
struct timespec *cur_ts = &cur->timeout;
|
||||
|
||||
if (!TIMESPEC_IS_SET(cur_ts) || (cur_ts->tv_sec > timeout->tv_sec) ||
|
||||
(cur_ts->tv_sec == timeout->tv_sec &&
|
||||
cur_ts->tv_nsec > timeout->tv_nsec)) {
|
||||
list_add_tail(&urbh->list, &cur->list);
|
||||
return;
|
||||
}
|
||||
}
|
||||
|
||||
/* otherwise we need to be inserted at the end */
|
||||
list_add_tail(&urbh->list, &flying_urbs);
|
||||
}
|
||||
|
||||
static int submit_urb(struct fpusb_dev_handle *devh,
|
||||
struct fpusb_urb_handle *urbh)
|
||||
{
|
||||
int r;
|
||||
struct usb_urb *urb = &urbh->urb;
|
||||
int to_be_transferred = urbh->transfer_len - urbh->transferred;
|
||||
|
||||
urb->type = urbh->urb_type;
|
||||
urb->endpoint = urbh->endpoint;
|
||||
urb->buffer = urbh->buffer + urbh->transferred;
|
||||
urb->buffer_length = MIN(to_be_transferred, MAX_URB_BUFFER_LENGTH);
|
||||
urb->signr = signum;
|
||||
|
||||
/* FIXME: for requests that we have to split into multiple URBs, we should
|
||||
* submit all the URBs instantly: submit, submit, submit, reap, reap, reap
|
||||
* rather than: submit, reap, submit, reap, submit, reap
|
||||
* this will improve performance and fix bugs concerning behaviour when
|
||||
* the user submits two similar multiple-urb requests */
|
||||
fp_dbg("transferring %d from %d bytes", urb->buffer_length,
|
||||
to_be_transferred);
|
||||
|
||||
r = ioctl(devh->fd, IOCTL_USB_SUBMITURB, &urbh->urb);
|
||||
if (r < 0) {
|
||||
fp_err("submiturb failed error %d errno=%d", r, errno);
|
||||
return r;
|
||||
}
|
||||
|
||||
add_to_flying_list(urbh);
|
||||
return 0;
|
||||
}
|
||||
|
||||
API_EXPORTED struct fpusb_urb_handle *fpusb_submit_ctrl_msg(
|
||||
struct fpusb_dev_handle *devh, struct fpusb_ctrl_msg *msg,
|
||||
fpusb_ctrl_cb_fn callback, void *user_data, unsigned int timeout)
|
||||
{
|
||||
struct fpusb_urb_handle *urbh = malloc(sizeof(*urbh));
|
||||
struct usb_ctrl_setup *setup;
|
||||
unsigned char *urbdata;
|
||||
int urbdata_length = sizeof(struct usb_ctrl_setup) + msg->length;
|
||||
int r;
|
||||
|
||||
if (!urbh)
|
||||
return NULL;
|
||||
memset(urbh, 0, sizeof(*urbh));
|
||||
urbh->devh = devh;
|
||||
urbh->callback = callback;
|
||||
urbh->user_data = user_data;
|
||||
r = calculate_timeout(urbh, timeout);
|
||||
if (r < 0) {
|
||||
free(urbh);
|
||||
return NULL;
|
||||
}
|
||||
|
||||
urbdata = malloc(urbdata_length);
|
||||
if (!urbdata) {
|
||||
free(urbh);
|
||||
return NULL;
|
||||
}
|
||||
|
||||
fp_dbg("RQT=%02x RQ=%02x VAL=%04x IDX=%04x length=%d",
|
||||
msg->requesttype, msg->request, msg->value, msg->index, msg->length);
|
||||
|
||||
setup = (struct usb_ctrl_setup *) urbdata;
|
||||
setup->bRequestType = msg->requesttype;
|
||||
setup->bRequest = msg->request;
|
||||
setup->wValue = cpu_to_le16(msg->value);
|
||||
setup->wIndex = cpu_to_le16(msg->index);
|
||||
setup->wLength = cpu_to_le16(msg->length);
|
||||
|
||||
if ((msg->requesttype & 0x80) == USB_ENDPOINT_OUT)
|
||||
memcpy(urbdata + sizeof(struct usb_ctrl_setup), msg->data, msg->length);
|
||||
|
||||
urbh->urb_type = USB_URB_TYPE_CONTROL;
|
||||
urbh->msg = msg;
|
||||
urbh->buffer = urbdata;
|
||||
urbh->transfer_len = urbdata_length;
|
||||
|
||||
r = submit_urb(devh, urbh);
|
||||
if (r < 0) {
|
||||
free(urbh);
|
||||
free(urbdata);
|
||||
return NULL;
|
||||
}
|
||||
|
||||
return urbh;
|
||||
}
|
||||
|
||||
static struct fpusb_urb_handle *submit_bulk_msg(struct fpusb_dev_handle *devh,
|
||||
struct fpusb_bulk_msg *msg, fpusb_bulk_cb_fn callback, void *user_data,
|
||||
unsigned int timeout, unsigned char urbtype)
|
||||
{
|
||||
struct fpusb_urb_handle *urbh = malloc(sizeof(*urbh));
|
||||
int r;
|
||||
|
||||
fp_dbg("length %d timeout %d", msg->length, timeout);
|
||||
|
||||
if (!urbh)
|
||||
return NULL;
|
||||
memset(urbh, 0, sizeof(*urbh));
|
||||
r = calculate_timeout(urbh, timeout);
|
||||
if (r < 0) {
|
||||
free(urbh);
|
||||
return NULL;
|
||||
}
|
||||
urbh->devh = devh;
|
||||
urbh->callback = callback;
|
||||
urbh->user_data = user_data;
|
||||
urbh->flags |= FPUSB_URBH_DATA_BELONGS_TO_USER;
|
||||
urbh->msg = msg;
|
||||
urbh->endpoint = msg->endpoint;
|
||||
urbh->urb_type = urbtype;
|
||||
urbh->buffer = msg->data;
|
||||
urbh->transfer_len = msg->length;
|
||||
|
||||
r = submit_urb(devh, urbh);
|
||||
if (r < 0) {
|
||||
free(urbh);
|
||||
return NULL;
|
||||
}
|
||||
|
||||
return urbh;
|
||||
}
|
||||
|
||||
API_EXPORTED struct fpusb_urb_handle *fpusb_submit_bulk_msg(
|
||||
struct fpusb_dev_handle *devh, struct fpusb_bulk_msg *msg,
|
||||
fpusb_bulk_cb_fn callback, void *user_data, unsigned int timeout)
|
||||
{
|
||||
return submit_bulk_msg(devh, msg, callback, user_data, timeout,
|
||||
USB_URB_TYPE_BULK);
|
||||
}
|
||||
|
||||
API_EXPORTED struct fpusb_urb_handle *fpusb_submit_intr_msg(
|
||||
struct fpusb_dev_handle *devh, struct fpusb_bulk_msg *msg,
|
||||
fpusb_bulk_cb_fn callback, void *user_data, unsigned int timeout)
|
||||
{
|
||||
return submit_bulk_msg(devh, msg, callback, user_data, timeout,
|
||||
USB_URB_TYPE_INTERRUPT);
|
||||
}
|
||||
|
||||
API_EXPORTED int fpusb_urb_handle_cancel(struct fpusb_dev_handle *devh,
|
||||
struct fpusb_urb_handle *urbh)
|
||||
{
|
||||
int r;
|
||||
fp_dbg("");
|
||||
r = ioctl(devh->fd, IOCTL_USB_DISCARDURB, &urbh->urb);
|
||||
if (r < 0)
|
||||
fp_err("cancel urb failed error %d", r);
|
||||
return r;
|
||||
}
|
||||
|
||||
API_EXPORTED int fpusb_urb_handle_cancel_sync(struct fpusb_dev_handle *devh,
|
||||
struct fpusb_urb_handle *urbh)
|
||||
{
|
||||
int r;
|
||||
fp_dbg("");
|
||||
r = ioctl(devh->fd, IOCTL_USB_DISCARDURB, &urbh->urb);
|
||||
if (r < 0) {
|
||||
fp_err("cancel urb failed error %d", r);
|
||||
return r;
|
||||
}
|
||||
|
||||
urbh->flags |= FPUSB_URBH_SYNC_CANCELLED;
|
||||
while (urbh->flags & FPUSB_URBH_SYNC_CANCELLED) {
|
||||
r = fpusb_poll();
|
||||
if (r < 0)
|
||||
return r;
|
||||
}
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
int handle_transfer_completion(struct fpusb_dev_handle *devh,
|
||||
struct fpusb_urb_handle *urbh, enum fp_urb_cb_status status)
|
||||
{
|
||||
struct usb_urb *urb = &urbh->urb;
|
||||
|
||||
if (TIMESPEC_IS_SET(&urbh->timeout))
|
||||
timer_delete(urbh->timer);
|
||||
|
||||
if (status == FP_URB_SILENT_COMPLETION)
|
||||
return 0;
|
||||
|
||||
if (urb->type == USB_URB_TYPE_CONTROL) {
|
||||
fpusb_ctrl_cb_fn callback = urbh->callback;
|
||||
if (callback)
|
||||
callback(devh, urbh, urbh->msg, status,
|
||||
urb->buffer + sizeof(struct usb_ctrl_setup), urbh->transferred,
|
||||
urbh->user_data);
|
||||
} else if (urb->type == USB_URB_TYPE_BULK ||
|
||||
urb->type == USB_URB_TYPE_INTERRUPT) {
|
||||
fpusb_bulk_cb_fn callback = urbh->callback;
|
||||
if (callback)
|
||||
callback(devh, urbh, urbh->msg, status, urbh->transferred,
|
||||
urbh->user_data);
|
||||
}
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int handle_transfer_cancellation(struct fpusb_dev_handle *devh,
|
||||
struct fpusb_urb_handle *urbh)
|
||||
{
|
||||
/* if the URB is being cancelled synchronously, raise cancellation
|
||||
* completion event by unsetting flag, and ensure that user callback does
|
||||
* not get called.
|
||||
*/
|
||||
if (urbh->flags & FPUSB_URBH_SYNC_CANCELLED) {
|
||||
urbh->flags &= ~FPUSB_URBH_SYNC_CANCELLED;
|
||||
fp_dbg("detected sync. cancel");
|
||||
return handle_transfer_completion(devh, urbh, FP_URB_SILENT_COMPLETION);
|
||||
}
|
||||
|
||||
/* if the URB was cancelled due to timeout, report timeout to the user */
|
||||
if (urbh->flags & FPUSB_URBH_TIMED_OUT) {
|
||||
fp_dbg("detected timeout cancellation");
|
||||
return handle_transfer_completion(devh, urbh, FP_URB_TIMEOUT);
|
||||
}
|
||||
|
||||
/* otherwise its a normal async cancel */
|
||||
return handle_transfer_completion(devh, urbh, FP_URB_CANCELLED);
|
||||
}
|
||||
|
||||
static int reap_for_devh(struct fpusb_dev_handle *devh)
|
||||
{
|
||||
int r;
|
||||
struct usb_urb *urb;
|
||||
struct fpusb_urb_handle *urbh;
|
||||
int trf_requested;
|
||||
|
||||
r = ioctl(devh->fd, IOCTL_USB_REAPURBNDELAY, &urb);
|
||||
if (r == -1 && errno == EAGAIN)
|
||||
return r;
|
||||
if (r < 0) {
|
||||
fp_err("reap failed error %d errno=%d", r, errno);
|
||||
return r;
|
||||
}
|
||||
|
||||
urbh = container_of(urb, struct fpusb_urb_handle, urb);
|
||||
|
||||
fp_dbg("urb type=%d status=%d transferred=%d", urb->type, urb->status,
|
||||
urb->actual_length);
|
||||
list_del(&urbh->list);
|
||||
|
||||
if (urb->status == -2)
|
||||
return handle_transfer_cancellation(devh, urbh);
|
||||
/* FIXME: research what other status codes may exist */
|
||||
if (urb->status != 0)
|
||||
fp_warn("unrecognised urb status %d", urb->status);
|
||||
|
||||
/* determine how much data was asked for */
|
||||
trf_requested = MIN(urbh->transfer_len - urbh->transferred,
|
||||
MAX_URB_BUFFER_LENGTH);
|
||||
|
||||
urbh->transferred += urb->actual_length;
|
||||
|
||||
/* if we were provided less data than requested, then our transfer is
|
||||
* done */
|
||||
if (urb->actual_length < trf_requested) {
|
||||
fp_dbg("less data than requested (%d/%d) --> all done",
|
||||
urb->actual_length, trf_requested);
|
||||
return handle_transfer_completion(devh, urbh, FP_URB_COMPLETED);
|
||||
}
|
||||
|
||||
/* if we've transferred all data, we're done */
|
||||
if (urbh->transferred == urbh->transfer_len) {
|
||||
fp_dbg("transfer complete --> all done");
|
||||
return handle_transfer_completion(devh, urbh, FP_URB_COMPLETED);
|
||||
}
|
||||
|
||||
/* otherwise, we have more data to transfer */
|
||||
fp_dbg("more data to transfer...");
|
||||
memset(urb, 0, sizeof(*urb));
|
||||
return submit_urb(devh, urbh);
|
||||
}
|
||||
|
||||
static void handle_timeout(struct fpusb_urb_handle *urbh)
|
||||
{
|
||||
/* handling timeouts is tricky, as we may race with the kernel: we may
|
||||
* detect a timeout racing with the condition that the urb has actually
|
||||
* completed. we asynchronously cancel the URB and report timeout
|
||||
* to the user when the URB cancellation completes (or not at all if the
|
||||
* URB actually gets delivered as per this race) */
|
||||
int r;
|
||||
|
||||
|
||||
urbh->flags |= FPUSB_URBH_TIMED_OUT;
|
||||
r = fpusb_urb_handle_cancel(urbh->devh, urbh);
|
||||
if (r < 0)
|
||||
fp_warn("async cancel failed %d errno=%d", r, errno);
|
||||
}
|
||||
|
||||
static int handle_timeouts(void)
|
||||
{
|
||||
struct timespec systime;
|
||||
struct fpusb_urb_handle *urbh;
|
||||
int r;
|
||||
|
||||
if (list_empty(&flying_urbs))
|
||||
return 0;
|
||||
|
||||
/* get current time */
|
||||
r = clock_gettime(CLOCK_MONOTONIC, &systime);
|
||||
if (r < 0)
|
||||
return r;
|
||||
|
||||
/* iterate through flying urbs list, finding all urbs that have expired
|
||||
* timeouts */
|
||||
list_for_each_entry(urbh, &flying_urbs, list) {
|
||||
struct timespec *cur_ts = &urbh->timeout;
|
||||
|
||||
/* if we've reached urbs of infinite timeout, we're all done */
|
||||
if (!TIMESPEC_IS_SET(cur_ts))
|
||||
return 0;
|
||||
|
||||
/* if urb has non-expired timeout, nothing more to do */
|
||||
if ((cur_ts->tv_sec > systime.tv_sec) ||
|
||||
(cur_ts->tv_sec == systime.tv_sec &&
|
||||
cur_ts->tv_nsec > systime.tv_nsec))
|
||||
return 0;
|
||||
|
||||
/* otherwise, we've got an expired timeout to handle */
|
||||
handle_timeout(urbh);
|
||||
}
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int reap(void)
|
||||
{
|
||||
struct fpusb_dev_handle *devh;
|
||||
int r;
|
||||
|
||||
list_for_each_entry(devh, &open_devs, list) {
|
||||
r = reap_for_devh(devh);
|
||||
if (r == -1 && errno == EAGAIN)
|
||||
continue;
|
||||
if (r < 0)
|
||||
return r;
|
||||
}
|
||||
|
||||
r = handle_timeouts();
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int flush_sigfd(void)
|
||||
{
|
||||
int r;
|
||||
struct signalfd_siginfo siginfo;
|
||||
r = read(sigfd, &siginfo, sizeof(siginfo));
|
||||
if (r < 0) {
|
||||
fp_err("sigfd read failed %d %d", r, errno);
|
||||
return r;
|
||||
}
|
||||
if ((unsigned int) r < sizeof(siginfo)) {
|
||||
fp_err("sigfd short read (%d/%d)", r, sizeof(siginfo));
|
||||
return -1;
|
||||
}
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int poll_io(struct timeval *tv)
|
||||
{
|
||||
int r;
|
||||
fd_set fds;
|
||||
|
||||
FD_ZERO(&fds);
|
||||
FD_SET(sigfd, &fds);
|
||||
r = select(sigfd + 1, &fds, NULL, NULL, tv);
|
||||
if (r == -1 && errno == EINTR)
|
||||
return 0;
|
||||
if (r < 0) {
|
||||
fp_err("select failed %d err=%d\n", r, errno);
|
||||
return r;
|
||||
}
|
||||
|
||||
if (r > 0) {
|
||||
flush_sigfd();
|
||||
return reap();
|
||||
}
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
API_EXPORTED int fpusb_poll_timeout(struct timeval *tv)
|
||||
{
|
||||
return poll_io(tv);
|
||||
}
|
||||
|
||||
API_EXPORTED int fpusb_poll(void)
|
||||
{
|
||||
struct timeval tv;
|
||||
tv.tv_sec = 0;
|
||||
tv.tv_usec = 500000;
|
||||
return poll_io(&tv);
|
||||
}
|
||||
|
||||
struct sync_ctrl_handle {
|
||||
enum fp_urb_cb_status status;
|
||||
unsigned char *data;
|
||||
int actual_length;
|
||||
};
|
||||
|
||||
static void ctrl_msg_cb(struct fpusb_dev_handle *devh,
|
||||
struct fpusb_urb_handle *urbh, struct fpusb_ctrl_msg *msg,
|
||||
enum fp_urb_cb_status status, unsigned char *data, int actual_length,
|
||||
void *user_data)
|
||||
{
|
||||
struct sync_ctrl_handle *ctrlh = (struct sync_ctrl_handle *) user_data;
|
||||
fp_dbg("actual_length=%d", actual_length);
|
||||
|
||||
if (status == FP_URB_COMPLETED) {
|
||||
/* copy results into user-defined buffer */
|
||||
if (msg->requesttype & USB_ENDPOINT_IN)
|
||||
memcpy(ctrlh->data, data, actual_length);
|
||||
}
|
||||
|
||||
ctrlh->status = status;
|
||||
ctrlh->actual_length = actual_length;
|
||||
/* caller frees urbh */
|
||||
}
|
||||
|
||||
API_EXPORTED int fpusb_ctrl_msg(struct fpusb_dev_handle *devh,
|
||||
struct fpusb_ctrl_msg *msg, unsigned int timeout)
|
||||
{
|
||||
struct fpusb_urb_handle *urbh;
|
||||
struct sync_ctrl_handle ctrlh;
|
||||
|
||||
memset(&ctrlh, 0, sizeof(ctrlh));
|
||||
ctrlh.data = msg->data;
|
||||
|
||||
urbh = fpusb_submit_ctrl_msg(devh, msg, ctrl_msg_cb, &ctrlh, timeout);
|
||||
if (!urbh)
|
||||
return -1;
|
||||
|
||||
while (!ctrlh.status) {
|
||||
int r = fpusb_poll();
|
||||
if (r < 0) {
|
||||
fpusb_urb_handle_cancel_sync(devh, urbh);
|
||||
fpusb_urb_handle_free(urbh);
|
||||
return r;
|
||||
}
|
||||
}
|
||||
|
||||
fpusb_urb_handle_free(urbh);
|
||||
switch (ctrlh.status) {
|
||||
case FP_URB_COMPLETED:
|
||||
return ctrlh.actual_length;
|
||||
case FP_URB_TIMEOUT:
|
||||
return -ETIMEDOUT;
|
||||
default:
|
||||
fp_warn("unrecognised status code %d", ctrlh.status);
|
||||
return -1;
|
||||
}
|
||||
}
|
||||
|
||||
struct sync_bulk_handle {
|
||||
enum fp_urb_cb_status status;
|
||||
int actual_length;
|
||||
};
|
||||
|
||||
static void bulk_msg_cb(struct fpusb_dev_handle *devh,
|
||||
struct fpusb_urb_handle *urbh, struct fpusb_bulk_msg *msg,
|
||||
enum fp_urb_cb_status status, int actual_length, void *user_data)
|
||||
{
|
||||
struct sync_bulk_handle *bulkh = (struct sync_bulk_handle *) user_data;
|
||||
fp_dbg("");
|
||||
bulkh->status = status;
|
||||
bulkh->actual_length = actual_length;
|
||||
/* caller frees urbh */
|
||||
}
|
||||
|
||||
static int do_sync_bulk_msg(struct fpusb_dev_handle *devh,
|
||||
struct fpusb_bulk_msg *msg, int *transferred, unsigned int timeout,
|
||||
unsigned char urbtype)
|
||||
{
|
||||
struct fpusb_urb_handle *urbh;
|
||||
struct sync_bulk_handle bulkh;
|
||||
|
||||
memset(&bulkh, 0, sizeof(bulkh));
|
||||
|
||||
urbh = submit_bulk_msg(devh, msg, bulk_msg_cb, &bulkh, timeout, urbtype);
|
||||
if (!urbh)
|
||||
return -1;
|
||||
|
||||
while (!bulkh.status) {
|
||||
int r = fpusb_poll();
|
||||
if (r < 0) {
|
||||
fpusb_urb_handle_cancel_sync(devh, urbh);
|
||||
fpusb_urb_handle_free(urbh);
|
||||
return r;
|
||||
}
|
||||
}
|
||||
|
||||
*transferred = bulkh.actual_length;
|
||||
fpusb_urb_handle_free(urbh);
|
||||
|
||||
switch (bulkh.status) {
|
||||
case FP_URB_COMPLETED:
|
||||
return 0;
|
||||
case FP_URB_TIMEOUT:
|
||||
return -ETIMEDOUT;
|
||||
default:
|
||||
fp_warn("unrecognised status code %d", bulkh.status);
|
||||
return -1;
|
||||
}
|
||||
}
|
||||
|
||||
API_EXPORTED int fpusb_intr_msg(struct fpusb_dev_handle *devh,
|
||||
struct fpusb_bulk_msg *msg, int *transferred, unsigned int timeout)
|
||||
{
|
||||
return do_sync_bulk_msg(devh, msg, transferred, timeout,
|
||||
USB_URB_TYPE_INTERRUPT);
|
||||
}
|
||||
|
||||
API_EXPORTED int fpusb_bulk_msg(struct fpusb_dev_handle *devh,
|
||||
struct fpusb_bulk_msg *msg, int *transferred, unsigned int timeout)
|
||||
{
|
||||
return do_sync_bulk_msg(devh, msg, transferred, timeout,
|
||||
USB_URB_TYPE_BULK);
|
||||
}
|
||||
|
||||
API_EXPORTED void fpusb_urb_handle_free(struct fpusb_urb_handle *urbh)
|
||||
{
|
||||
if (!urbh)
|
||||
return;
|
||||
|
||||
if (!(urbh->flags & FPUSB_URBH_DATA_BELONGS_TO_USER))
|
||||
free(urbh->urb.buffer);
|
||||
free(urbh);
|
||||
}
|
||||
|
||||
76
libfpusb/signalfd.h
Normal file
76
libfpusb/signalfd.h
Normal file
|
|
@ -0,0 +1,76 @@
|
|||
/*
|
||||
* signalfd header
|
||||
* Copyright (C) 2007 Daniel Drake <dsd@gentoo.org>
|
||||
*
|
||||
* Based on glibc header
|
||||
* Copyright (C) 2007 Free Software Foundation, Inc.
|
||||
*
|
||||
* 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 __FPUSB_SIGNALFD_H__
|
||||
#define __FPUSB_SIGNALFD_H__
|
||||
|
||||
/* FIXME: in future, remove this and unconditionally use glibc directly when
|
||||
* glibc-2.8 is widespread */
|
||||
|
||||
#include <signal.h>
|
||||
#include <stdint.h>
|
||||
|
||||
#ifdef __i386__
|
||||
#define __NR_signalfd 321
|
||||
#elif defined(__x86_64__)
|
||||
#define __NR_signalfd 282
|
||||
#else
|
||||
#error "signalfd unsupported on this architecture"
|
||||
#endif
|
||||
|
||||
/* signalfd() implementation was added as of glibc-2.7 */
|
||||
#if __GLIBC_PREREQ(2, 7)
|
||||
int signalfd(int fd, const sigset_t *mask, int flags);
|
||||
#else
|
||||
#include <sys/syscall.h>
|
||||
|
||||
#define SIZEOF_SIG (_NSIG / 8)
|
||||
#define SIZEOF_SIGSET (SIZEOF_SIG > sizeof(sigset_t) ? sizeof(sigset_t): SIZEOF_SIG)
|
||||
|
||||
static inline int signalfd(int fd, const sigset_t *mask, int flags)
|
||||
{
|
||||
return syscall(__NR_signalfd, fd, mask, SIZEOF_SIGSET);
|
||||
}
|
||||
#endif
|
||||
|
||||
struct signalfd_siginfo {
|
||||
uint32_t ssi_signo;
|
||||
int32_t ssi_errno;
|
||||
int32_t ssi_code;
|
||||
uint32_t ssi_pid;
|
||||
uint32_t ssi_uid;
|
||||
int32_t ssi_fd;
|
||||
uint32_t ssi_tid;
|
||||
uint32_t ssi_band;
|
||||
uint32_t ssi_overrun;
|
||||
uint32_t ssi_trapno;
|
||||
int32_t ssi_status;
|
||||
int32_t ssi_int;
|
||||
uintptr_t ssi_ptr;
|
||||
uint64_t ssi_utime;
|
||||
uint64_t ssi_stime;
|
||||
uint64_t ssi_addr;
|
||||
uint8_t __pad[48];
|
||||
};
|
||||
|
||||
#endif
|
||||
|
||||
135
libfpusb/usbfs.h
Normal file
135
libfpusb/usbfs.h
Normal file
|
|
@ -0,0 +1,135 @@
|
|||
/*
|
||||
* usbfs header structures
|
||||
* Copyright (C) 2007 Daniel Drake <dsd@gentoo.org>
|
||||
*
|
||||
* Portions based on libusb-0.1
|
||||
* Copyright (c) 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 __FPUSB_USBFS_H__
|
||||
#define __FPUSB_USBFS_H__
|
||||
|
||||
struct usb_ctrltransfer {
|
||||
/* keep in sync with usbdevice_fs.h:usbdevfs_ctrltransfer */
|
||||
uint8_t bRequestType;
|
||||
uint8_t bRequest;
|
||||
uint16_t wValue;
|
||||
uint16_t wIndex;
|
||||
uint16_t wLength;
|
||||
|
||||
uint32_t timeout; /* in milliseconds */
|
||||
|
||||
/* pointer to data */
|
||||
void *data;
|
||||
};
|
||||
|
||||
struct usb_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 usb_setinterface {
|
||||
/* keep in sync with usbdevice_fs.h:usbdevfs_setinterface */
|
||||
unsigned int interface;
|
||||
unsigned int altsetting;
|
||||
};
|
||||
|
||||
#define USB_MAXDRIVERNAME 255
|
||||
|
||||
struct usb_getdriver {
|
||||
unsigned int interface;
|
||||
char driver[USB_MAXDRIVERNAME + 1];
|
||||
};
|
||||
|
||||
#define USB_URB_DISABLE_SPD 1
|
||||
#define USB_URB_ISO_ASAP 2
|
||||
#define USB_URB_QUEUE_BULK 0x10
|
||||
|
||||
enum usb_urb_type {
|
||||
USB_URB_TYPE_ISO = 0,
|
||||
USB_URB_TYPE_INTERRUPT = 1,
|
||||
USB_URB_TYPE_CONTROL = 2,
|
||||
USB_URB_TYPE_BULK = 3,
|
||||
};
|
||||
|
||||
struct usb_iso_packet_desc {
|
||||
unsigned int length;
|
||||
unsigned int actual_length;
|
||||
unsigned int status;
|
||||
};
|
||||
|
||||
#define MAX_URB_BUFFER_LENGTH 16384
|
||||
|
||||
struct usb_urb {
|
||||
unsigned char type;
|
||||
unsigned char endpoint;
|
||||
int status;
|
||||
unsigned int flags;
|
||||
void *buffer;
|
||||
int buffer_length;
|
||||
int actual_length;
|
||||
int start_frame;
|
||||
int number_of_packets;
|
||||
int error_count;
|
||||
unsigned int signr;
|
||||
void *usercontext;
|
||||
struct usb_iso_packet_desc iso_frame_desc[0];
|
||||
};
|
||||
|
||||
struct usb_connectinfo {
|
||||
unsigned int devnum;
|
||||
unsigned char slow;
|
||||
};
|
||||
|
||||
struct usb_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 usb_hub_portinfo {
|
||||
unsigned char numports;
|
||||
unsigned char port[127]; /* port to device num mapping */
|
||||
};
|
||||
|
||||
#define IOCTL_USB_CONTROL _IOWR('U', 0, struct usb_ctrltransfer)
|
||||
#define IOCTL_USB_BULK _IOWR('U', 2, struct usb_bulktransfer)
|
||||
#define IOCTL_USB_RESETEP _IOR('U', 3, unsigned int)
|
||||
#define IOCTL_USB_SETINTF _IOR('U', 4, struct usb_setinterface)
|
||||
#define IOCTL_USB_SETCONFIG _IOR('U', 5, unsigned int)
|
||||
#define IOCTL_USB_GETDRIVER _IOW('U', 8, struct usb_getdriver)
|
||||
#define IOCTL_USB_SUBMITURB _IOR('U', 10, struct usb_urb)
|
||||
#define IOCTL_USB_DISCARDURB _IO('U', 11)
|
||||
#define IOCTL_USB_REAPURB _IOW('U', 12, void *)
|
||||
#define IOCTL_USB_REAPURBNDELAY _IOW('U', 13, void *)
|
||||
#define IOCTL_USB_CLAIMINTF _IOR('U', 15, unsigned int)
|
||||
#define IOCTL_USB_RELEASEINTF _IOR('U', 16, unsigned int)
|
||||
#define IOCTL_USB_CONNECTINFO _IOW('U', 17, struct usb_connectinfo)
|
||||
#define IOCTL_USB_IOCTL _IOWR('U', 18, struct usb_ioctl)
|
||||
#define IOCTL_USB_HUB_PORTINFO _IOR('U', 19, struct usb_hub_portinfo)
|
||||
#define IOCTL_USB_RESET _IO('U', 20)
|
||||
#define IOCTL_USB_CLEAR_HALT _IOR('U', 21, unsigned int)
|
||||
#define IOCTL_USB_DISCONNECT _IO('U', 22)
|
||||
#define IOCTL_USB_CONNECT _IO('U', 23)
|
||||
|
||||
#endif
|
||||
Loading…
Reference in a new issue