xoscope-2.2/0000775000175000017500000000000012767064723010056 500000000000000xoscope-2.2/esd_gtk.c0000664000175000017500000000667212766670500011570 00000000000000/* -*- mode: C++; indent-tabs-mode: nil; fill-column: 100; c-basic-offset: 4; -*- * * Copyright (C) 1996 - 2001 Tim Witham * * (see the files README and COPYING for more details) * * This file implements the ESD GUI. It's just setting the esdrecord option on or off. The old * value is found via a save_option() call (esdrecord is assumed to be option #1). We keep a * temp_rec variable in case the user closes or cancels the dialog without clicking 'Accept'. On * 'Accept', we set the variable by forming an ASCII option string and doing a set_option(). * */ #include #include #include #include "xoscope.h" #include "display.h" static int temp_rec; static void esd_save_values(GtkWidget *w, gpointer data) { char buf[16]; snprintf(buf, sizeof(buf), "esdrecord=%d", temp_rec); datasrc->set_option(buf); clear(); } static void esdrecord(GtkWidget *w, gpointer data) { temp_rec = * (int *) data; } void esd_gtk_option_dialog() { GtkWidget *window, *label, *accept, *cancel; GtkWidget *on, *off; char *option; window = gtk_dialog_new(); accept = gtk_button_new_with_label(" Accept "); gtk_box_pack_start(GTK_BOX(GTK_DIALOG(window)->action_area), accept, TRUE, TRUE, 0); cancel = gtk_button_new_with_label(" Cancel "); gtk_box_pack_start(GTK_BOX(GTK_DIALOG(window)->action_area), cancel, TRUE, TRUE, 0); label = gtk_label_new(" ESD Record Mode: "); gtk_box_pack_start(GTK_BOX(GTK_DIALOG(window)->vbox), label, TRUE, TRUE, 5); on = gtk_radio_button_new_with_label(NULL, "On"); off = gtk_radio_button_new_with_label(gtk_radio_button_group(GTK_RADIO_BUTTON(on)), "Off"); gtk_box_pack_start(GTK_BOX(GTK_DIALOG(window)->vbox), on, TRUE, TRUE, 0); gtk_box_pack_start(GTK_BOX(GTK_DIALOG(window)->vbox), off, TRUE, TRUE, 0); option = datasrc->save_option(1); /* format will be "esdrecord=%d" */ if (option) temp_rec = option[10] - '0'; gtk_toggle_button_set_active (GTK_TOGGLE_BUTTON(on), temp_rec == 1); gtk_toggle_button_set_active (GTK_TOGGLE_BUTTON(off), temp_rec == 0); gtk_signal_connect(GTK_OBJECT(on), "clicked", GTK_SIGNAL_FUNC(esdrecord), int_to_int_pointer(1)); gtk_signal_connect(GTK_OBJECT(off), "clicked", GTK_SIGNAL_FUNC(esdrecord), int_to_int_pointer(0)); gtk_signal_connect_object(GTK_OBJECT(window), "delete_event", GTK_SIGNAL_FUNC(gtk_widget_destroy), GTK_OBJECT(window)); gtk_signal_connect(GTK_OBJECT(accept), "clicked", GTK_SIGNAL_FUNC(esd_save_values), NULL); gtk_signal_connect_object_after(GTK_OBJECT(accept), "clicked", GTK_SIGNAL_FUNC(gtk_widget_destroy), GTK_OBJECT(window)); gtk_signal_connect_object(GTK_OBJECT(cancel), "clicked", GTK_SIGNAL_FUNC(gtk_widget_destroy), GTK_OBJECT(window)); GTK_WIDGET_SET_FLAGS(cancel, GTK_CAN_DEFAULT); GTK_WIDGET_SET_FLAGS(accept, GTK_CAN_DEFAULT); gtk_widget_grab_default(accept); gtk_widget_show(on); gtk_widget_show(off); gtk_widget_show(accept); gtk_widget_show(cancel); gtk_widget_show(label); gtk_widget_show(window); } xoscope-2.2/depcomp0000775000175000017500000004755612453771524011370 00000000000000#! /bin/sh # depcomp - compile a program generating dependencies as side-effects scriptversion=2011-12-04.11; # UTC # Copyright (C) 1999, 2000, 2003, 2004, 2005, 2006, 2007, 2009, 2010, # 2011 Free Software Foundation, Inc. # This program is free software; you can redistribute it and/or modify # it under the terms of the GNU General Public License as published by # the Free Software Foundation; either version 2, 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 General Public License for more details. # You should have received a copy of the GNU General Public License # along with this program. If not, see . # As a special exception to the GNU General Public License, if you # distribute this file as part of a program that contains a # configuration script generated by Autoconf, you may include it under # the same distribution terms that you use for the rest of that program. # Originally written by Alexandre Oliva . case $1 in '') echo "$0: No command. Try \`$0 --help' for more information." 1>&2 exit 1; ;; -h | --h*) cat <<\EOF Usage: depcomp [--help] [--version] PROGRAM [ARGS] Run PROGRAMS ARGS to compile a file, generating dependencies as side-effects. Environment variables: depmode Dependency tracking mode. source Source file read by `PROGRAMS ARGS'. object Object file output by `PROGRAMS ARGS'. DEPDIR directory where to store dependencies. depfile Dependency file to output. tmpdepfile Temporary file to use when outputting dependencies. libtool Whether libtool is used (yes/no). Report bugs to . EOF exit $? ;; -v | --v*) echo "depcomp $scriptversion" exit $? ;; esac if test -z "$depmode" || test -z "$source" || test -z "$object"; then echo "depcomp: Variables source, object and depmode must be set" 1>&2 exit 1 fi # Dependencies for sub/bar.o or sub/bar.obj go into sub/.deps/bar.Po. depfile=${depfile-`echo "$object" | sed 's|[^\\/]*$|'${DEPDIR-.deps}'/&|;s|\.\([^.]*\)$|.P\1|;s|Pobj$|Po|'`} tmpdepfile=${tmpdepfile-`echo "$depfile" | sed 's/\.\([^.]*\)$/.T\1/'`} rm -f "$tmpdepfile" # Some modes work just like other modes, but use different flags. We # parameterize here, but still list the modes in the big case below, # to make depend.m4 easier to write. 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This case will never be run, # since it is checked for above. exit 1 ;; none) exec "$@" ;; *) echo "Unknown depmode $depmode" 1>&2 exit 1 ;; esac exit 0 # Local Variables: # mode: shell-script # sh-indentation: 2 # eval: (add-hook 'write-file-hooks 'time-stamp) # time-stamp-start: "scriptversion=" # time-stamp-format: "%:y-%02m-%02d.%02H" # time-stamp-time-zone: "UTC" # time-stamp-end: "; # UTC" # End: xoscope-2.2/Makefile.am0000664000175000017500000000540212767064671012035 00000000000000## Process this file with automake to produce Makefile.in # Copyright (C) 1996 - 2001 Tim Witham # Copyright (C) 2015 Brent Baccala # (see the files README and COPYING for more details) # Look at ./configure --help before tweaking this. man_MANS = xoscope.1 noinst_HEADERS = xoscope_gtk.h display.h file.h xoscope.h \ config.h func.h fft.h bin_PROGRAMS = xoscope Applicationsdir = $(datadir)/applications/ Applications_DATA = net.sourceforge.xoscope.desktop Metainfodir = $(datadir)/metainfo/ Metainfo_DATA = net.sourceforge.xoscope.appdata.xml EXTRA_DIST = $(man_MANS) $(noinst_HEADERS) \ TODO TODO.old xoscope.lsm xoscope.rc operl.in operl.help \ count.dat oscope.dat audio.dat bitscope.dat proscope.dat \ xoscope.glade xoscope.png xoscope.spec \ net.sourceforge.xoscope.desktop net.sourceforge.xoscope.appdata.xml \ hardware/HARDWARE hardware/buff.fig hardware/buff.ps \ hardware/buff2.fig hardware/buff2.ps hardware/pcb.fig hardware/pcb.ps \ hardware/xoscope-components.png hardware/xoscope-copper.png src = xoscope.c xoscope_gtk.c file.c func.c display.c fftsrc = fft.c if COMEDI comedisrc = comedi.c comedi_gtk.c endif if ESD esdsrc = esd.c esd_gtk.c endif if ASOUND asoundsrc = alsa.c endif AM_CPPFLAGS = @GTK_CFLAGS@ @GTKDATABOX_CFLAGS@ -export-dynamic -DPACKAGE_LIBEXEC_DIR='"$(bindir)"' .PRECIOUS: xoscope.glade xoscope.rc xoscope_SOURCES = $(src) $(comedisrc) $(esdsrc) $(asoundsrc) $(fftsrc) xoscope_LDADD = @GTK_LIBS@ @GTKDATABOX_LIBS@ xoscope_DEPENDENCIES = xoscope.rc xoscope_LDFLAGS = -Wl,--export-dynamic # I compile in some auxilary files so I don't have to worry about what # happens if they can't be found at runtime. MOSTLYCLEANFILES = builtins.h builtins.h: $(top_srcdir)/xoscope.rc $(top_srcdir)/xoscope.glade $(top_srcdir)/operl.in $(top_srcdir)/operl.help $(top_srcdir)/xoscope.png echo "/* xoscope.rc.h generated by make from xoscope.rc and xoscope.glade.*/" > $@ echo "/* DO NOT EDIT THIS FILE! */" >> $@ echo "char * xoscope_rc[] = {" > $@ sed -e 's/"/\\"/g' -e 's/^/"/' -e 's/$$/",/' $(top_srcdir)/xoscope.rc >> $@ echo "NULL };" >> $@ echo "char * gladestring = " >> $@ sed -e 's/"/\\"/g' -e 's/^/"/' -e 's/$$/"/' $(top_srcdir)/xoscope.glade >> $@ echo ";" >> $@ echo "char * operl_program = " >> $@ sed -e 's/\\/\\\\/g' -e 's/"/\\"/g' -e 's/^/"/' -e 's/$$/\\n"/' $(top_srcdir)/operl.in >> $@ echo ";" >> $@ echo "char * operl_help_text = " >> $@ sed -e 's/\\/\\\\/g' -e 's/"/\\"/g' -e 's/^/"/' -e 's/$$/\\n"/' $(top_srcdir)/operl.help >> $@ echo ";" >> $@ gdk-pixbuf-csource --name=xoscope_128x128 --struct xoscope.png >> $@ xoscope_gtk.o: builtins.h install-data-local: @$(NORMAL_INSTALL) $(INSTALL_DATA) -D xoscope.png $(DESTDIR)$(datadir)/pixmaps/xoscope.png xoscope-2.2/net.sourceforge.xoscope.desktop0000664000175000017500000000027712766632470016165 00000000000000[Desktop Entry] Version=1.0 Type=Application Name=xoscope GenericName=Digital oscilloscope Categories=Science;Electronics;Network;HamRadio;Education; Exec=xoscope Terminal=false Icon=xoscope xoscope-2.2/README0000664000175000017500000000236712466742276010670 00000000000000 xoscope - Digital Oscilloscope via Sound Card/COMEDI Latest official version and more is available at: http://xoscope.sourceforge.net/ SUMMARY: xoscope is a digital oscilloscope that uses a sound card (via ALSA or EsounD) and/or a data acquisition card (via COMEDI) as the signal input. WHAT YOU NEED: A modern Linux distribution should be able to build xoscope from source. * You will need GTK+ 2 (version 2.18 or newer). * You will need the gtkdatabox library. For best visual results, you may wish to use the version from the xoscope git repository. * You will need the fftw library. * You will need (optionally) the ALSA, ESD, or COMEDI libraries. If any (or all) of these libraries are absent, xoscope will build without that library's input capability. INSTALLATION: * ./configure * make * make install USAGE: Please see the man page for instructions on how to use xoscope. Also use the option `-h' to show command-line options, and the `?' key to show the key help. If you're interested in doing advanced signal math at run-time, see the Perl function help under the Channel/Math menu. 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'өsGak\+:r)*5lv<_Jf#~tA ߓ;5װa:7*=+.4\2~%ihEulIsp.-`:YzOt +)lWeq}CO:6H71gˌщhF'2jLql 9g!Vm4ɵsΥs^ڶpΟIj1u54\'k~񻴇O8lJ/`5 2+m~6VۖB(J66,cF4#h?hU5L&b^やYmUg/ρ%reŸA|yc66~N殒T8VЂU;4bb82n Ťgfw &YK,U[b_. B.Sb`GK4P]ijG[Ux+HʶtՐR*h15vgcZEIuWhSv?VU~EC9 T%Cc^2K6x{+\o}_XCe<FoB|\o@r|ef:~`Ќ.qmi>;: $f.QI1'3s($   !&|ڲU4K7 jejĨ2ݨq:+s85 WٿZf#WݯGU$8LS+y治z/~g$6IjPev7/tiMb ]Әg6s+ܭ.k RR(cGvγmZԌ_}mZ*㈌C 0pҎ S] Y#zݰvā{{PA̡ΈC{~ė_:1i H4q<Ázg[ų_wx%G|>x}#>^3v.IENDB`xoscope-2.2/AUTHORS0000664000175000017500000000345612765674376011067 00000000000000 Recent work (since release 1.10) by Brent Baccala Oscope/Xoscope was written by Tim Witham , known as back in 1995 when development began. Oscope was originally based on "scope" by Jeff Tranter . Oscope is released under the conditions of the GNU General Public License. See the files README and COPYING in the distribution for details. CREDITS: Thanks to: Jeff Tranter for writing the original scope-0.1 that inspired all this. Philip VanBaren for the realfft.c code from his freq program. The many folks working on the way cool GTK+. The Cthugha-L program (Torps Productions, Harald Deischinger ) for inspiring the X11 client and some coding ideas. Dominic Giamapolo for libsx which made the original X11 client possible. Mitch D'Souza for libvgamisc which makes the 16-color console text possible (from his "g3vga"). For the DOS port, DJ Delorie (dj@delorie.com) for DJGPP and to Charles W Sandmann (sandmann@clio.rice.edu) for CWSDPMI which together allow the 32 bit code to work on DOS. To Gerhard Kordmann (kordmann@ldv01.Uni-Trier.de) for sb02.zip which made the sound card work. And to Sam Vincent (svincent@cs.sonoma.edu) for svasync.zip which made the serial connection to ProbeScope possible. Dave J. Andruczyk for the initial tweaks to make a connection to EsounD. Bruce Tulloch and Norman Jackson for the way cool open BitScope hardware and the wonderful Programmer's guide. Ingo Cyliax for initial code to work with the bitscope. ALSA support by Gerhard Schiller (gerhard.schiller@gmail.com). xoscope-2.2/display.h0000664000175000017500000000203112455542225011600 00000000000000/* -*- mode: C++; indent-tabs-mode: nil; fill-column: 100; c-basic-offset: 4; -*- * * Copyright (C) 1996 - 1999 Tim Witham * * (see the files README and COPYING for more details) * * display variables and routines available outside of display.c * */ #define ALIGN_RIGHT 1 #define ALIGN_LEFT 2 #define ALIGN_CENTER 3 #ifndef TRUE #define TRUE 1 #endif #ifndef FALSE #define FALSE 0 #endif /* XXX fontname seems to be unused */ extern char fontname[]; extern char fonts[]; extern int total_horizontal_divisions; void init_widgets(void); void fix_widgets(void); void setup_help_text(GtkWidget *widget, gpointer ignored); void update_text(void); void show_data(void); void roundoff_multipliers(Channel *); void timebase_changed(void); void clear(void); void message(const char *); void animate(void *); void LoadSaveFile(int); void ExternCommand(void); void PerlFunction(void); int OpenDisplay(int, char **); void setup_help_text(GtkWidget *, gpointer); xoscope-2.2/configure0000775000175000017500000103137712766652504011720 00000000000000#! /bin/sh # Guess values for system-dependent variables and create Makefiles. # Generated by GNU Autoconf 2.69 for xoscope 2.2. # # # Copyright (C) 1992-1996, 1998-2012 Free Software Foundation, Inc. # # # This configure script is free software; the Free Software Foundation # gives unlimited permission to copy, distribute and modify it. ## -------------------- ## ## M4sh Initialization. ## ## -------------------- ## # Be more Bourne compatible DUALCASE=1; export DUALCASE # for MKS sh if test -n "${ZSH_VERSION+set}" && (emulate sh) >/dev/null 2>&1; then : emulate sh NULLCMD=: # Pre-4.2 versions of Zsh do word splitting on ${1+"$@"}, which # is contrary to our usage. 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"Package requirements (gtkdatabox) were not met: $GTKDATABOX_PKG_ERRORS Consider adjusting the PKG_CONFIG_PATH environment variable if you installed software in a non-standard prefix. Alternatively, you may set the environment variables GTKDATABOX_CFLAGS and GTKDATABOX_LIBS to avoid the need to call pkg-config. See the pkg-config man page for more details." "$LINENO" 5 elif test $pkg_failed = untried; then { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 $as_echo "no" >&6; } { { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5 $as_echo "$as_me: error: in \`$ac_pwd':" >&2;} as_fn_error $? "The pkg-config script could not be found or is too old. Make sure it is in your PATH or set the PKG_CONFIG environment variable to the full path to pkg-config. Alternatively, you may set the environment variables GTKDATABOX_CFLAGS and GTKDATABOX_LIBS to avoid the need to call pkg-config. See the pkg-config man page for more details. To get pkg-config, see . See \`config.log' for more details" "$LINENO" 5; } else GTKDATABOX_CFLAGS=$pkg_cv_GTKDATABOX_CFLAGS GTKDATABOX_LIBS=$pkg_cv_GTKDATABOX_LIBS { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5 $as_echo "yes" >&6; } fi pkg_failed=no { $as_echo "$as_me:${as_lineno-$LINENO}: checking for FFTW3" >&5 $as_echo_n "checking for FFTW3... 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"Package requirements (fftw3) were not met: $FFTW3_PKG_ERRORS Consider adjusting the PKG_CONFIG_PATH environment variable if you installed software in a non-standard prefix. Alternatively, you may set the environment variables FFTW3_CFLAGS and FFTW3_LIBS to avoid the need to call pkg-config. See the pkg-config man page for more details." "$LINENO" 5 elif test $pkg_failed = untried; then { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 $as_echo "no" >&6; } { { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5 $as_echo "$as_me: error: in \`$ac_pwd':" >&2;} as_fn_error $? "The pkg-config script could not be found or is too old. Make sure it is in your PATH or set the PKG_CONFIG environment variable to the full path to pkg-config. Alternatively, you may set the environment variables FFTW3_CFLAGS and FFTW3_LIBS to avoid the need to call pkg-config. See the pkg-config man page for more details. To get pkg-config, see . See \`config.log' for more details" "$LINENO" 5; } else FFTW3_CFLAGS=$pkg_cv_FFTW3_CFLAGS FFTW3_LIBS=$pkg_cv_FFTW3_LIBS { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5 $as_echo "yes" >&6; } fi if test "x$GCC" = "xyes"; then case " $CFLAGS " in *[\ \ ]-Wall[\ \ ]*) ;; *) CFLAGS="$CFLAGS -Wall" ;; esac fi { $as_echo "$as_me:${as_lineno-$LINENO}: checking for X" >&5 $as_echo_n "checking for X... " >&6; } # Check whether --with-x was given. if test "${with_x+set}" = set; then : withval=$with_x; fi # $have_x is `yes', `no', `disabled', or empty when we do not yet know. if test "x$with_x" = xno; then # The user explicitly disabled X. have_x=disabled else case $x_includes,$x_libraries in #( *\'*) as_fn_error $? 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Use char because int might match the return type of a GCC builtin and then its argument prototype would still apply. */ #ifdef __cplusplus extern "C" #endif char gethostbyname (); int main () { return gethostbyname (); ; return 0; } _ACEOF if ac_fn_c_try_link "$LINENO"; then : ac_cv_lib_bsd_gethostbyname=yes else ac_cv_lib_bsd_gethostbyname=no fi rm -f core conftest.err conftest.$ac_objext \ conftest$ac_exeext conftest.$ac_ext LIBS=$ac_check_lib_save_LIBS fi { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_bsd_gethostbyname" >&5 $as_echo "$ac_cv_lib_bsd_gethostbyname" >&6; } if test "x$ac_cv_lib_bsd_gethostbyname" = xyes; then : X_EXTRA_LIBS="$X_EXTRA_LIBS -lbsd" fi fi fi # lieder@skyler.mavd.honeywell.com says without -lsocket, # socket/setsockopt and other routines are undefined under SCO ODT # 2.0. But -lsocket is broken on IRIX 5.2 (and is not necessary # on later versions), says Simon Leinen: it contains gethostby* # variants that don't use the name server (or something). -lsocket # must be given before -lnsl if both are needed. We assume that # if connect needs -lnsl, so does gethostbyname. ac_fn_c_check_func "$LINENO" "connect" "ac_cv_func_connect" if test "x$ac_cv_func_connect" = xyes; then : fi if test $ac_cv_func_connect = no; then { $as_echo "$as_me:${as_lineno-$LINENO}: checking for connect in -lsocket" >&5 $as_echo_n "checking for connect in -lsocket... " >&6; } if ${ac_cv_lib_socket_connect+:} false; then : $as_echo_n "(cached) " >&6 else ac_check_lib_save_LIBS=$LIBS LIBS="-lsocket $X_EXTRA_LIBS $LIBS" cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ /* Override any GCC internal prototype to avoid an error. Use char because int might match the return type of a GCC builtin and then its argument prototype would still apply. */ #ifdef __cplusplus extern "C" #endif char connect (); int main () { return connect (); ; return 0; } _ACEOF if ac_fn_c_try_link "$LINENO"; then : ac_cv_lib_socket_connect=yes else ac_cv_lib_socket_connect=no fi rm -f core conftest.err conftest.$ac_objext \ conftest$ac_exeext conftest.$ac_ext LIBS=$ac_check_lib_save_LIBS fi { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_socket_connect" >&5 $as_echo "$ac_cv_lib_socket_connect" >&6; } if test "x$ac_cv_lib_socket_connect" = xyes; then : X_EXTRA_LIBS="-lsocket $X_EXTRA_LIBS" fi fi # Guillermo Gomez says -lposix is necessary on A/UX. ac_fn_c_check_func "$LINENO" "remove" "ac_cv_func_remove" if test "x$ac_cv_func_remove" = xyes; then : fi if test $ac_cv_func_remove = no; then { $as_echo "$as_me:${as_lineno-$LINENO}: checking for remove in -lposix" >&5 $as_echo_n "checking for remove in -lposix... " >&6; } if ${ac_cv_lib_posix_remove+:} false; then : $as_echo_n "(cached) " >&6 else ac_check_lib_save_LIBS=$LIBS LIBS="-lposix $LIBS" cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ /* Override any GCC internal prototype to avoid an error. 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" >&6; } if ${ac_cv_lib_ipc_shmat+:} false; then : $as_echo_n "(cached) " >&6 else ac_check_lib_save_LIBS=$LIBS LIBS="-lipc $LIBS" cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ /* Override any GCC internal prototype to avoid an error. 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"can not find X11" "$LINENO" 5 fi # Extract the first word of "perl", so it can be a program name with args. set dummy perl; ac_word=$2 { $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 $as_echo_n "checking for $ac_word... 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Use char because int might match the return type of a GCC builtin and then its argument prototype would still apply. */ #ifdef __cplusplus extern "C" #endif char esd_monitor_stream (); int main () { return esd_monitor_stream (); ; return 0; } _ACEOF if ac_fn_c_try_link "$LINENO"; then : ac_cv_lib_esd_esd_monitor_stream=yes else ac_cv_lib_esd_esd_monitor_stream=no fi rm -f core conftest.err conftest.$ac_objext \ conftest$ac_exeext conftest.$ac_ext LIBS=$ac_check_lib_save_LIBS fi { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_esd_esd_monitor_stream" >&5 $as_echo "$ac_cv_lib_esd_esd_monitor_stream" >&6; } if test "x$ac_cv_lib_esd_esd_monitor_stream" = xyes; then : cat >>confdefs.h <<_ACEOF #define HAVE_LIBESD 1 _ACEOF LIBS="-lesd $LIBS" fi { $as_echo "$as_me:${as_lineno-$LINENO}: checking for sin in -lm" >&5 $as_echo_n "checking for sin in -lm... 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"--with-comedi was given, but test for COMEDI failed See \`config.log' for more details" "$LINENO" 5; } fi fi fi if test "$ac_cv_lib_comedi_comedi_open" = "yes"; then : { $as_echo "$as_me:${as_lineno-$LINENO}: checking how many arguments comedi_get_cmd_generic_timed takes" >&5 $as_echo_n "checking how many arguments comedi_get_cmd_generic_timed takes... 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Use char because int might match the return type of a GCC builtin and then its argument prototype would still apply. */ #ifdef __cplusplus extern "C" #endif char fftw_execute (); int main () { return fftw_execute (); ; return 0; } _ACEOF if ac_fn_c_try_link "$LINENO"; then : ac_cv_lib_fftw3_fftw_execute=yes else ac_cv_lib_fftw3_fftw_execute=no fi rm -f core conftest.err conftest.$ac_objext \ conftest$ac_exeext conftest.$ac_ext LIBS=$ac_check_lib_save_LIBS fi { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_fftw3_fftw_execute" >&5 $as_echo "$ac_cv_lib_fftw3_fftw_execute" >&6; } if test "x$ac_cv_lib_fftw3_fftw_execute" = xyes; then : cat >>confdefs.h <<_ACEOF #define HAVE_LIBFFTW3 1 _ACEOF LIBS="-lfftw3 $LIBS" fi { $as_echo "$as_me:${as_lineno-$LINENO}: checking for snd_pcm_hw_params in -lasound" >&5 $as_echo_n "checking for snd_pcm_hw_params in -lasound... " >&6; } if ${ac_cv_lib_asound_snd_pcm_hw_params+:} false; then : $as_echo_n "(cached) " >&6 else ac_check_lib_save_LIBS=$LIBS LIBS="-lasound $LIBS" cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ /* Override any GCC internal prototype to avoid an error. Use char because int might match the return type of a GCC builtin and then its argument prototype would still apply. */ #ifdef __cplusplus extern "C" #endif char snd_pcm_hw_params (); int main () { return snd_pcm_hw_params (); ; return 0; } _ACEOF if ac_fn_c_try_link "$LINENO"; then : ac_cv_lib_asound_snd_pcm_hw_params=yes else ac_cv_lib_asound_snd_pcm_hw_params=no fi rm -f core conftest.err conftest.$ac_objext \ conftest$ac_exeext conftest.$ac_ext LIBS=$ac_check_lib_save_LIBS fi { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_asound_snd_pcm_hw_params" >&5 $as_echo "$ac_cv_lib_asound_snd_pcm_hw_params" >&6; } if test "x$ac_cv_lib_asound_snd_pcm_hw_params" = xyes; then : cat >>confdefs.h <<_ACEOF #define HAVE_LIBASOUND 1 _ACEOF LIBS="-lasound $LIBS" fi { $as_echo "$as_me:${as_lineno-$LINENO}: checking for gtk_databox_grid_set_line_style in -lgtkdatabox" >&5 $as_echo_n "checking for gtk_databox_grid_set_line_style in -lgtkdatabox... " >&6; } if ${ac_cv_lib_gtkdatabox_gtk_databox_grid_set_line_style+:} false; then : $as_echo_n "(cached) " >&6 else ac_check_lib_save_LIBS=$LIBS LIBS="-lgtkdatabox $LIBS" cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ /* Override any GCC internal prototype to avoid an error. Use char because int might match the return type of a GCC builtin and then its argument prototype would still apply. */ #ifdef __cplusplus extern "C" #endif char gtk_databox_grid_set_line_style (); int main () { return gtk_databox_grid_set_line_style (); ; return 0; } _ACEOF if ac_fn_c_try_link "$LINENO"; then : ac_cv_lib_gtkdatabox_gtk_databox_grid_set_line_style=yes else ac_cv_lib_gtkdatabox_gtk_databox_grid_set_line_style=no fi rm -f core conftest.err conftest.$ac_objext \ conftest$ac_exeext conftest.$ac_ext LIBS=$ac_check_lib_save_LIBS fi { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_gtkdatabox_gtk_databox_grid_set_line_style" >&5 $as_echo "$ac_cv_lib_gtkdatabox_gtk_databox_grid_set_line_style" >&6; } if test "x$ac_cv_lib_gtkdatabox_gtk_databox_grid_set_line_style" = xyes; then : $as_echo "#define HAVE_GRID_LINESTYLE 1" >>confdefs.h fi if test "$ac_cv_lib_comedi_comedi_open" = "yes"; then COMEDI_TRUE= COMEDI_FALSE='#' else COMEDI_TRUE='#' COMEDI_FALSE= fi if test "$ac_cv_lib_esd_esd_monitor_stream" = "yes"; then ESD_TRUE= ESD_FALSE='#' else ESD_TRUE='#' ESD_FALSE= fi if test "$ac_cv_lib_asound_snd_pcm_hw_params" = "yes"; then ASOUND_TRUE= ASOUND_FALSE='#' else ASOUND_TRUE='#' ASOUND_FALSE= fi ac_header_dirent=no for ac_hdr in dirent.h sys/ndir.h sys/dir.h ndir.h; do as_ac_Header=`$as_echo "ac_cv_header_dirent_$ac_hdr" | $as_tr_sh` { $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_hdr that defines DIR" >&5 $as_echo_n "checking for $ac_hdr that defines DIR... 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None of them are set from there, that's done via set_option(), but there are read, * and for that reason need to be global. */ comedi_t *comedi_dev = NULL; gchar *comedi_board_name = NULL; static int comedi_opened = 0; /* t if open has at least been _attempted_ */ static int comedi_running = 0; static int comedi_error = 0; /* device_name[] is an array we write the COMEDI device into if it is set by an option (then point * device at device_name). If there's no option, device stays pointing to the default - * /dev/comedi0 */ static char device_name[256]; char *comedi_devname = "/dev/comedi0"; int comedi_subdevice = 0; int comedi_rate = 50000; /* XXX set this to max valid upon open */ /* Size of COMEDI's kernel buffer. -1 means leave it at the default. Slight bug - if you change * it, then change it back to -1, the default setting won't return until you close and re-open the * device. Actually, that might not be good enough - you might need to re-configure the device. */ int comedi_bufsize = -1; #define BUFSZ 1024 static sampl_t buf[BUFSZ]; static int bufvalid=0; // has to be set later int zero_value = -1; static int lag = 0; /* lag - see get_data() */ static int subdevice_flags = 0; static int subdevice_type = COMEDI_SUBD_UNUSED; int comedi_aref = AREF_GROUND; /* Global voltage reference setting */ /* This structure associates xoscope Signal structures with the COMEDI channel they are receiving * on. capture_list gets emptied by close_comedi(), added to by enable_chan(), deleted from by * disable_chan(), used by start_comedi_running() to build a channel list, and used by get_data() to * figure out in which Signal(s) to put the data. */ #define NCHANS 8 struct capture { struct capture * next; int chan; Signal * signal; }; static struct capture *capture_list = NULL; static int active_channels=0; static Signal comedi_chans[NCHANS]; /* Triggering information - the (one) channel we're triggering on, the sample level, the type of * trigger (0 - freerun, 1 - ascending, 2 - descending), and the index of the trigger channel in the * capture list */ static int trig_chan = 0; static int trig_level = 0; static int trig_mode = 0; static int trig_index = -1; /* This function is defined as do-nothing and weak, meaning it can be overridden by the linker * without error. It's used to start the X Windows GTK options dialog for COMEDI, and is defined in * this way so that this object file can be used either with or without GTK. If this causes * compiler problems, just comment out the attribute line and leave the do-nothing function. You * will then need to comment out both lines to generate an object file that can be used with GTK. */ void comedi_gtk_options() __attribute__ ((weak)); void comedi_gtk_options() {} /* This function gets called at various points that we need to stop and restart COMEDI, like a rate * change, or a change to the list of channels we're capturing for. start_comedi_running() gets * called automatically by get_data(), so we can use stop_comedi_running() pretty liberally. */ static void stop_comedi_running(void) { if (comedi_running) { comedi_cancel(comedi_dev, 0); comedi_running = 0; } bufvalid = 0; } /* XXX This function should make sure the Signal arrays are reset to sane values. Right now, it * just sets their volt and rate values. */ static int start_comedi_running(void) { int try; int ret = -1; comedi_cmd cmd; unsigned int chanlist[NCHANS]; struct capture *capture; comedi_range *comedi_rng; int maxdata; if (!comedi_dev) return 0; /* There might have been an error condition that was cleared (like switching from an unsupported * subdevice to a supported one), so clear comedi_error here and set it if there's a problem * later. If we're not capturing anything, make sure we set subdevice_type before we return, * because nchans() depends on this variable to figure out how to interpret * comedi_get_n_channels() */ comedi_error = 0; subdevice_flags = comedi_get_subdevice_flags(comedi_dev, comedi_subdevice); subdevice_type = comedi_get_subdevice_type(comedi_dev, comedi_subdevice); if (active_channels == 0) return 0; if ((comedi_bufsize > 0) && (comedi_get_version_code(comedi_dev) > 0x0748)) { /* comedi versions pre-0.7.73 have a bug in their buffer size handling. Not only does it * fail to round up to a multiple of PAGE_SIZE correctly, but if you attempt to set a buffer * smaller than PAGE_SIZE, it will deallocate the buffer and you'll never get it back * without re-configuring the device. I used to round up to PAGE_SIZE here to avoid the * bug, but that requires to be present on the system. Easier is to just skip * setting buffer size on pre-0.7.73 comedi. */ ret = comedi_set_buffer_size(comedi_dev, comedi_subdevice, comedi_bufsize); if (ret < 0) { comedi_error = comedi_errno(); return ret; } } /* Now we build a COMEDI command structure */ bzero(&cmd, sizeof(cmd)); cmd.subdev = comedi_subdevice; /* Start with a channel list based on capture_list * * This code matches up with get_data(), which assumes that the captured data is in the same * order as the channels in the capture_list */ cmd.chanlist = chanlist; cmd.chanlist_len = 0; for (capture = capture_list; capture != NULL; capture = capture->next) { chanlist[cmd.chanlist_len++] = CR_PACK(capture->chan,0,comedi_aref); } if (cmd.chanlist_len == 0) { return 0; } /* comedilib has a comedi_get_cmd_generic_timed() function, but it's set up for sampling a * single channel, so I don't use it. Instead, I try several different varients on comedi * command structures in the hopes of finding one that works. */ try = 0; do { switch (try) { /* The first thing we try is to simultaneously sample (that's the convert_src of * TRIG_NOW) all the channels at the requested rate. */ case 0: cmd.start_src = TRIG_NOW; cmd.start_arg = 0; cmd.scan_begin_src = TRIG_TIMER; cmd.scan_begin_arg = 1e9 / comedi_rate; cmd.convert_src = TRIG_NOW; cmd.convert_arg = 0; cmd.scan_end_src = TRIG_COUNT; cmd.scan_end_arg = cmd.chanlist_len; cmd.stop_src = TRIG_NONE; cmd.stop_arg = 0; break; /* There's a good chance that won't work (not many cards support it). So now try * sampling each channel at a staggered interval of the requested rate times the number * of channels. */ case 1: cmd.start_src = TRIG_NOW; cmd.start_arg = 0; cmd.scan_begin_src = TRIG_FOLLOW; cmd.scan_begin_arg = 0; cmd.convert_src = TRIG_TIMER; cmd.convert_arg = 1e9 / (comedi_rate * active_channels); cmd.scan_end_src = TRIG_COUNT; cmd.scan_end_arg = cmd.chanlist_len; cmd.stop_src = TRIG_NONE; cmd.stop_arg = 0; break; /* OK, that didn't work. Maybe the card wants timers on both the scan and conversion? */ case 2: cmd.start_src = TRIG_NOW; cmd.start_arg = 0; cmd.scan_begin_src = TRIG_TIMER; cmd.scan_begin_arg = 1e9 / comedi_rate; cmd.convert_src = TRIG_TIMER; cmd.convert_arg = 1e9 / (comedi_rate * active_channels); cmd.scan_end_src = TRIG_COUNT; cmd.scan_end_arg = cmd.chanlist_len; cmd.stop_src = TRIG_NONE; cmd.stop_arg = 0; break; /* Nothing we tried worked! There are other possibilities, but none are currently * supported by this code. Complain and return the error code from the last thing we * tried. */ default: comedi_error = comedi_errno(); return ret; } /* COMEDI command testing can be a little funky. We get a return code indicating which * phase of test failed. Basically, if phase 1 or 2 failed, we're screwed. If phase 3 * failed, it might be because we've pushed the limits of the timing past where it can go, * and if phase 4 failed, it's just because the device can't support exactly the timings we * asked for. In either of the last two cases, the driver adjusts the offending parameters. * That's why we call this function three times. */ ret = comedi_command_test(comedi_dev,&cmd); ret = comedi_command_test(comedi_dev,&cmd); ret = comedi_command_test(comedi_dev,&cmd); try ++; } while (ret != 0); /* Now we adjust our global rate to whatever we got the card to do. */ if (cmd.scan_begin_src == TRIG_TIMER) { comedi_rate = 1e9 / cmd.scan_begin_arg; } else if (cmd.convert_src == TRIG_TIMER) { comedi_rate = 1e9 / cmd.convert_arg; comedi_rate /= active_channels; } else { fprintf(stderr, "neither convert_src nor start_src is TRIG_TIMER!?!\n"); } /* Voltage range is currently a global setting. Find it, and save it into all the Signal(s) * we're collecting data into (if we're capturing an analog input subdevice; digital subdevs * don't do this). Signal->volts should be in milivolts per 320 sample values, so take the * voltage range given by COMEDI, multiply by 1000 (volts -> millivolts), divide by 2^(sampl_t * bits) (sample values in an sampl_t), to get millivolts per sample value, and multiply by 320 * to get millivolts per 320 sample values. 320 is the size of the vertical display area, in * case you wondered. * * Also, set the rate (samples/sec) at which we'll capture data */ for (capture = capture_list; capture != NULL; capture = capture->next) { if (subdevice_type == COMEDI_SUBD_AI) { comedi_rng = comedi_get_range(comedi_dev, comedi_subdevice, capture->chan, COMEDI_RANGE); maxdata=comedi_get_maxdata(comedi_dev, comedi_subdevice, 0); if (comedi_rng != NULL) { capture->signal->volts = (comedi_rng->max - comedi_rng->min) * 1000 * 320 / maxdata; } if (zero_value<0) { // we have to set zero value if ((comedi_rng != NULL) && (comedi_rng->min<0)&&(comedi_rng->max>0)) { // we are bipolar zero_value=maxdata/2; } else { // we are unipolar zero_value=0; } } capture->signal->bits = 0; #if 0 printf(" [%g,%g] %s\n",comedi_rng->min,comedi_rng->max, comedi_rng->unit == UNIT_volt ? "V" : ""); #endif } else { capture->signal->bits = comedi_get_n_channels(comedi_dev, comedi_subdevice); capture->signal->volts = 0; } capture->signal->rate = comedi_rate; } #if 0 fprintf(stderr, "Sampling every %d(%d) ns(Hz)\n", cmd.convert_arg, comedi_rate); #endif ret = comedi_command(comedi_dev,&cmd); if (ret >= 0) { fcntl(comedi_fileno(comedi_dev), F_SETFL, O_NONBLOCK); comedi_running = 1; } else { comedi_error = comedi_errno(); } return ret; } static void close_comedi() { #if 0 struct capture *capture; #endif if (comedi_dev) comedi_close(comedi_dev); comedi_dev = NULL; if (comedi_board_name) g_free(comedi_board_name); comedi_board_name = NULL; comedi_running = 0; comedi_opened = 0; /* Leave active channels alone here in case we're closing a device because of an error and want * to re-open later. */ #if 0 while (capture_list != NULL) { capture = capture_list->next; free(capture_list); capture_list = capture; } active_channels = 0; #endif } static int open_comedi(void) { int i; static int once=0; close_comedi(); comedi_error = 0; comedi_opened = 1; subdevice_flags = 0; subdevice_type = COMEDI_SUBD_UNUSED; if (!once) { /* XXX once is a kludge */ /* Setup the Signal structures. Note that the name is set to 'a', 'b', 'c', etc, to conform * with xoscope usage and to avoid confusing the user with the display channels. COMEDI, of * course, numbers its channels 0, 1, 2, etc */ for (i = 0 ; i < NCHANS ; i++) { /* XXX hardwired at 8 */ comedi_chans[i].data = NULL; comedi_chans[i].num = comedi_chans[i].frame = comedi_chans[i].volts = 0; comedi_chans[i].listeners = 0; //sprintf(comedi_chans[i].name, "Channel %d", i); sprintf(comedi_chans[i].name, "Channel %c", 'a' + i); comedi_chans[i].savestr[0] = 'a' + i; comedi_chans[i].savestr[1] = '\0'; } once = 1; } comedi_dev = comedi_open(comedi_devname); if (! comedi_dev) { comedi_error = comedi_errno(); return 0; } /* All the GTK stuff uses UTF8, and complains to stderr if it * doesn't get it. */ comedi_board_name = g_locale_to_utf8(comedi_get_board_name(comedi_dev), -1, NULL, NULL, NULL); /* XXX I'd kinda like to do this here, but then the read() loop below (to get offset correction * for the DAQP) returns errors (-EAGAIN). If do this later, and start_comedi_running() has * problems, then it might hang in get_data(), but I hope I've fixed that now... */ /* fcntl(comedi_fileno(comedi_dev), F_SETFL, O_NONBLOCK); */ if (comedi_board_name && strncmp(comedi_board_name, "DAQP", 4) == 0) { /* Special case for DAQP - unfortunately, COMEDI doesn't (yet) provide a generic interface * for boards that can do offset correction, so this special case is designed to handle the * Quatech DAQP. We collect a hundred samples from channel 4 in differential mode, a * non-existant channel used by the DAQP specifically for offset correction. */ comedi_cmd cmd; unsigned int chan; int ret; #ifdef COMEDI_GET_CMD_GENERIC_TIMED_TAKES_5_ARGS ret = comedi_get_cmd_generic_timed(comedi_dev, comedi_subdevice, &cmd,0,0); #else ret = comedi_get_cmd_generic_timed(comedi_dev, comedi_subdevice, &cmd, 0); #endif if (ret >= 0) { chan = CR_PACK(4,0,AREF_DIFF); cmd.chanlist = &chan; cmd.chanlist_len = 1; cmd.start_src = TRIG_NOW; cmd.start_arg = 0; cmd.stop_src = TRIG_COUNT; cmd.stop_arg = 100; ret = comedi_command_test(comedi_dev, &cmd); if (ret >= 0) { ret = comedi_command(comedi_dev, &cmd); if (ret >= 0) { int i = 0; while ((i < (100 * sizeof(sampl_t))) && (ret = read(comedi_fileno(comedi_dev), buf, 100 * sizeof(sampl_t) - i)) > 0) { i += ret; } if (i == (100 * sizeof(sampl_t))) { zero_value = 0; for (i=0; i<100; i++) zero_value += buf[i]; zero_value /= 100; } } } } if (ret == -1) { comedi_error = comedi_errno(); /* close_comedi(); */ return 0; } comedi_cancel(comedi_dev, 0); } /* XXX Why can't we do this here? It doesn't seem to "take" */ /* fcntl(comedi_fileno(comedi_dev), F_SETFL, O_NONBLOCK); */ if (start_comedi_running() < 0) { return 0; } else { return 1; } } void reset_comedi(void) { if (comedi_dev == NULL) { open_comedi(); if (comedi_dev == NULL) { return; } } stop_comedi_running(); } static int nchans(void) { int chans; int i; if (! comedi_opened) open_comedi(); /* open_comedi() calls start_comedi_running() just before it returns, so that's how we know * subdevice_type has been set correctly when we get here. However, I really don't know if * open_comedi() SHOULD call start_comedi_running() at all, so we may need to revisit this. */ if (comedi_dev == NULL) { return 0; } else if (subdevice_type == COMEDI_SUBD_AI) { /* analog subdevice - mark all channels analog and return num of chans */ chans = comedi_get_n_channels(comedi_dev, comedi_subdevice); for (i = 0; i < chans; i ++) comedi_chans[i].bits = 0; return chans; } else { /* digital subdevice - n_channels returns number of bits */ comedi_chans[0].bits = comedi_get_n_channels(comedi_dev, comedi_subdevice); return 1; } } static int fd(void) { return (comedi_running ? comedi_fileno(comedi_dev) : -1); } /* reset() - part of the data source API. Called when we're ready to start capturing. Clears the * old capture_list and builds a new one. capture_ptr is used to make sure we build the list from * the top down, not the bottom up, mainly to make sure trig_index counts from the top down. * Finally, we start COMEDI. We don't really need to start COMEDI, just prep it, but we start it in * order to set the rate and volts fields (during start_comedi_running) in the Signal structures. */ static void reset(void) { struct capture *capture; struct capture **capture_ptr; int i; stop_comedi_running(); for (capture = capture_list; capture != NULL; capture = capture_list) { capture_list = capture->next; free(capture); } capture_list = NULL; active_channels = 0; trig_index = -1; capture_ptr = &capture_list; for (i = 0; i < NCHANS; i++) { if ((comedi_chans[i].listeners) || ((trig_mode > 0) && (trig_chan == i))) { capture = malloc(sizeof(struct capture)); if (capture == NULL) { perror("enable_chan() malloc failed"); exit(1); } capture->chan = i; capture->signal = &comedi_chans[i]; capture->next = NULL; *capture_ptr = capture; capture_ptr = &capture->next; comedi_chans[i].num = 0; comedi_chans[i].frame ++; if ((trig_mode > 0) && (trig_chan == i)) trig_index = active_channels; active_channels ++; } } start_comedi_running(); } static Signal * comedi_chan(int chan) { return &comedi_chans[chan]; } static int set_trigger(int chan, int *levelp, int mode) { trig_chan = chan; trig_level = *levelp; trig_mode = mode; /* XXX check that trig_level is within subdevice's range */ return 1; } static void clear_trigger(void) { trig_mode = 0; } /* Current COMEDI rate logic has some bizarre effects. As we increase the number of channels * sampled, the rate goes down (usually), but doesn't go back up when we decrease the number of * sampled chans. */ /* XXX the rate we calculate might not be the one that actually gets used */ static int change_rate(int dir) { int oldrate = comedi_rate; if (dir == 1) { comedi_rate *= 2; } else { comedi_rate /= 2; } stop_comedi_running(); return (comedi_rate != oldrate); } /* set_width(int) * * sets the frame width (number of samples captured per sweep) globally for all the channels. */ static void set_width(int width) { int i; for (i=0; isignal->width; /* It is possible for this loop to be entered with a full buffer of data already (bufvalid == * sizeof(buf)). In that case, the read will be called with a zero byte buffer size, and will * return zero. That's why the comparison reads ">=0" and not ">0" */ while ((bytes_read = read(comedi_fileno(comedi_dev), ((char *)buf) + bufvalid, sizeof(buf) - bufvalid)) >= 0) { // fprintf(stderr, "bytes_read=%d; bufvalid=%d\n", bytes_read, bufvalid); bytes_read += bufvalid; gettimeofday(&tv1, NULL); samples_read = bytes_read / sizeof(sampl_t); scans_read = samples_read / active_channels; /* This is here to catch the case when there's nothing (or not much) in the buffer, and the * read() call returned nothing. */ if (scans_read == 0 && bytes_read == 0) break; for (i = 0; i < scans_read; i++) { current_scan = buf + i * active_channels; if (!in_progress && scope.run && i>0) { /* Sweep isn't in_progress, so look for a trigger - anything (trig_mode==0) or a * transition between the last sample and the current one that crossed the * trig_level threshold, either going positive (trig_mode==1) or going negative * (trig_mode==2). Since we check the previous sample, there's an "i>0" case in the * above if statement, and that does mean that we'll miss a trigger if the * transition exactly corresponds with a read buffer boundary. */ last_scan = buf + (i-1) * active_channels; if ((trig_mode == 0) || ((trig_mode == 1) && (convert(current_scan[trig_index]) >= trig_level) && (convert(last_scan[trig_index]) < trig_level)) || ((trig_mode == 2) && (convert(current_scan[trig_index]) <= trig_level) && (convert(last_scan[trig_index]) > trig_level))) { /* found something to trigger on, so compute a delay value based on * extrapolating a straight line between the two sample values that straddle the * triggering point, for high-frequency signals that change significantly * between the two samples. Set up all the relevent Signal structures, then * fall through into the triggered case below */ delay = 0; if (trig_mode != 0) { short current = convert(current_scan[trig_index]); short last = convert(last_scan[trig_index]); if (current != last) { delay = abs(10000 * (current - trig_level) / (current - last)); } } for (j=0, capture=capture_list; capture != NULL; capture=capture->next, j++) { capture->signal->frame ++; capture->signal->delay = delay; capture->signal->num = 0; } if (j != active_channels) { fprintf(stderr, "ERROR! j != active_channels in get_data()\n"); } in_progress = 1; } } if (in_progress) { /* Sweep in progress */ for (j=0, capture=capture_list; capture != NULL; capture=capture->next, j++) { capture->signal->data[capture->signal->num ++] = convert(current_scan[j]); in_progress = capture->signal->num; } if (j != active_channels) { fprintf(stderr, "ERROR! j != active_channels in get_data()\n"); } triggered = 1; if (in_progress >= samples_per_frame) { in_progress = 0; /* If we were in the middle of a sweep when we entered this function, return * now. Otherwise, keep looking for more sweeps. */ if (was_in_sweep) { bufvalid = bytes_read - (i * active_channels * sizeof(sampl_t)); if (bufvalid) { memcpy(buf, (char *) buf + bytes_read - bufvalid, bufvalid); } lag = 0; return triggered; } } } } /* It would be nice if COMEDI never returned a partial scan to a read() call. * Unfortunately, it often does, so we need to tuck the "extra" data away until the next * time through this loop... */ bufvalid = bytes_read - (scans_read * active_channels * sizeof(sampl_t)); if (bufvalid) { memcpy(buf, (char *) buf + bytes_read - bufvalid, bufvalid); } } if ((bytes_read < 0) && (errno != EAGAIN)) { /* The most common cause of a COMEDI read error is a buffer overflow. There are all kinds * of ways to do it, from hitting space to stop the scope trace to dragging a window while * xoscope is running. In the later case, the window manager will do an X server grab, * which will block xoscope the next time it tries to perform an X operation. Holding the * mouse down longer than a split second will cause the COMEDI kernel buffer to overflow, * which will trigger this code the next time through. * * comedi-0.7.60 returned EINVAL on buffer overflows; * comedi-0.7.66 returns EPIPE * * In any event, if we detect an overflow, we reset the capture to start a new trace, record * how many microseconds elapsed since the last time we were able to read the device, and * report this on the screen as "lag". */ if (errno != EINVAL && errno != EPIPE) perror("comedi read"); start_comedi_running(); bufvalid = 0; gettimeofday(&tv2, NULL); lag = 1000000*(tv2.tv_sec-tv1.tv_sec) + tv2.tv_usec - tv1.tv_usec; return 0; } lag = 0; return triggered; } static const char * status_str(int i) { static char buffer[16]; const char *error = comedi_strerror(comedi_error); switch (i) { case 0: return comedi_devname; case 2: if (comedi_dev) { return comedi_board_name; } else { return split_field(error, 0, 16); } case 4: if (!comedi_dev) { return split_field(error, 1, 16); } else { return ""; } case 1: if (comedi_dev) { sprintf(buffer, "Subdevice %d", comedi_subdevice); return buffer; } else { return ""; } case 3: if (comedi_dev && comedi_error) { return split_field(error, 0, 16); } else if (lag > 1000) { snprintf(buffer, sizeof(buffer), "%d ms lag", lag/1000); } else if (lag > 0) { snprintf(buffer, sizeof(buffer), "%d \302\265s lag", lag); } else { return ""; } case 5: if (comedi_dev && comedi_error) { return split_field(error, 1, 16); } else { return ""; } default: return NULL; } } /* Option 1 key - global analog reference toggle * * Analog COMEDI devices typically can select between different references (which signal line is * treated as zero point). */ static int option1(void) { if (comedi_aref == AREF_GROUND && subdevice_flags & SDF_DIFF) comedi_aref = AREF_DIFF; else if (comedi_aref == AREF_GROUND && subdevice_flags & SDF_COMMON) comedi_aref = AREF_COMMON; else if (comedi_aref == AREF_DIFF && subdevice_flags & SDF_COMMON) comedi_aref = AREF_COMMON; else if (comedi_aref == AREF_DIFF && subdevice_flags & SDF_GROUND) comedi_aref = AREF_GROUND; else if (comedi_aref == AREF_COMMON && subdevice_flags & SDF_GROUND) comedi_aref = AREF_GROUND; else if (comedi_aref == AREF_COMMON && subdevice_flags & SDF_DIFF) comedi_aref = AREF_DIFF; else return 0; return 1; } static const char * option1str(void) { if (! (subdevice_flags & (SDF_GROUND | SDF_DIFF | SDF_COMMON))) { return NULL; } else if (comedi_aref == AREF_GROUND) { return "AREF_GROUND"; } else if (comedi_aref == AREF_DIFF) { return "AREF_DIFF"; } else if (comedi_aref == AREF_COMMON) { return "AREF_COMMON"; } else { return "AREF unknown"; } } #if 0 /* XXX Option 2 key - use this for a per-channel Range setting? * * If so, would also need to add option strings below. */ static int option2(void) { return 0; } static char * option2str(void) { return NULL; } #endif static int comedi_set_option(char *option) { char buf[256]; char *p = buf; do { *p++ = tolower(*option); } while (*option++ && p < buf + sizeof(buf)); if (sscanf(buf, "rate=%d", &comedi_rate) == 1) { reset_comedi(); return 1; } else if (sscanf(buf, "device=%s", device_name) == 1) { comedi_devname = device_name; close_comedi(); /* reset_comedi(); */ open_comedi(); return 1; } else if (sscanf(buf, "subdevice=%d", &comedi_subdevice) == 1) { reset_comedi(); return 1; } else if (strcasecmp(buf, "aref=ground") == 0) { comedi_aref = AREF_GROUND; reset_comedi(); return 1; } else if (strcasecmp(buf, "aref=diff") == 0) { comedi_aref = AREF_DIFF; reset_comedi(); return 1; } else if (strcasecmp(buf, "bufsize=default") == 0) { comedi_bufsize = -1; return 1; } else if (sscanf(buf, "bufsize=%d", &comedi_bufsize) == 1) { reset_comedi(); return 1; } else { return 0; } } static char * comedi_save_option(int i) { static char buf[256]; switch (i) { case 0: snprintf(buf, sizeof(buf), "rate=%d", comedi_rate); return buf; case 1: snprintf(buf, sizeof(buf), "device=%s", comedi_devname); return buf; case 2: snprintf(buf, sizeof(buf), "subdevice=%d", comedi_subdevice); return buf; case 3: switch (comedi_aref) { case AREF_GROUND: return "aref=ground"; case AREF_DIFF: return "aref=diff"; case AREF_COMMON: return "aref=common"; default: return ""; } case 4: if (comedi_bufsize > 0) { snprintf(buf, sizeof(buf), "bufsize=%d", comedi_bufsize); return buf; } else { return "bufsize=default"; } default: return NULL; } } DataSrc datasrc_comedi = { "COMEDI", nchans, comedi_chan, set_trigger, clear_trigger, change_rate, set_width, reset, fd, get_data, status_str, option1, option1str, #if 0 option2, option2str, #else NULL, NULL, #endif comedi_set_option, comedi_save_option, comedi_gtk_options, }; xoscope-2.2/bitscope.dat0000664000175000017500000000050612414417057012270 00000000000000# xoscope, version 1.9.1, 640x480 # # -a 1 # -r 44100 # -s 100/1 # -t 0:0:x # -l 26:226:0 # -c 4 # -d 4 # -m 0 # -p 2 # -g 1 # -b # -x # -1 32.0:1/1:x # -2 32.0:1/1:y # -3 -128.8:1/2:z # -4 +0.0:1/1:0 # -5 +0.0:1/1:0 # -6 +0.0:1/1:0 # -7 +0.0:1/1:0 # -8 +0.0:1/1:0 # -o 0:0x11 # -o 5:0x00 # -o 6:0x7f # -o 7:0x23 # -o 14:0xae xoscope-2.2/mkinstalldirs0000775000175000017500000000132512414417057012574 00000000000000#! /bin/sh # mkinstalldirs --- make directory hierarchy # Author: Noah Friedman # Created: 1993-05-16 # Public domain # $Id: mkinstalldirs,v 2.0 2008/12/17 17:35:46 baccala Exp $ errstatus=0 for file do set fnord `echo ":$file" | sed -ne 's/^:\//#/;s/^://;s/\// /g;s/^#/\//;p'` shift pathcomp= for d do pathcomp="$pathcomp$d" case "$pathcomp" in -* ) pathcomp=./$pathcomp ;; esac if test ! -d "$pathcomp"; then echo "mkdir $pathcomp" mkdir "$pathcomp" || lasterr=$? if test ! -d "$pathcomp"; then errstatus=$lasterr fi fi pathcomp="$pathcomp/" done done exit $errstatus # mkinstalldirs ends here xoscope-2.2/file.h0000664000175000017500000000057312453771524011067 00000000000000/* -*- mode: C++; indent-tabs-mode: nil; fill-column: 100; c-basic-offset: 4; -*- * * Copyright (C) 1996 Tim Witham * * (see the files README and COPYING for more details) * * file variables and routines available outside of file.c * */ void handle_opt(char opt, char *optarg); void writefile(char *filename); void readfile(char *filename); xoscope-2.2/xoscope.spec.in0000664000175000017500000000525512766633173012746 00000000000000Name: xoscope Version: @VERSION@ Release: 1%{?dist} License: GPL-2.0 Group: X11/Applications URL: http://xoscope.sourceforge.net/ Vendor: Brent Baccala & others Packager: Franta Hanzlik Summary: Digital oscilloscope on PC Summary(pl.UTF-8): Cyfrowy oscyloskop na PC Source0: http://dl.sourceforge.net/xoscope/%{name}-%{version}.tar.gz BuildRequires: autoconf BuildRequires: automake BuildRequires: alsa-devel BuildRequires: fftw3-devel BuildRequires: libesd-devel BuildRequires: libgtkdatabox-devel BuildRequires: update-desktop-files BuildRequires: esound-devel BuildRequires: gtk2-devel >= 2.18 BuildRequires: comedilib-devel BuildRequires: gdk-pixbuf BuildRoot: %{tmpdir}/%{name}-%{version} %description xoscope is a digital oscilloscope that uses a sound card, COMEDI, and/or EsounD as the signal input. Includes 8 signal displays, variable time scale, math, memory, measurements, and file save/load. %prep %setup -q %build %{__aclocal} %{__autoheader} %{__automake} %{__autoconf} %configure %{__make} %install %make_install %suse_update_desktop_file -i xoscope %clean rm -rf $RPM_BUILD_ROOT %files %defattr(644,root,root,755) %doc AUTHORS ChangeLog hardware NEWS README TODO %attr(755,root,root) %{_bindir}/%{name} %{_datadir}/pixmaps/%{name}.png %{_datadir}/applications/%{name}.desktop %{_mandir}/man1/%{name}.1.gz %changelog * Thu Sep 15 2016 Brent Baccala - 2.2-1 - add AppStream support - minor bug fixes * Mon Jan 12 2015 Brent Baccala - 2.1-1 - remove pl, cz translations that I don't understand * Sun Jul 22 2012 Franta Hanzlik - build for Fedora distros - patch for nonexistent asm/page.h and no. of comedi_get_cmd_generic_timed params in comedi.c - disable CFLAGS 'GTK_DISABLE_DEPRECATED' in gtkdatabox-0.6.0.0/gtk/Makefile.am - added .desktop file - added notes for xoscope on Fedora distro * Tue Jul 20 2010 UTC PLD Team Revision 1.9 2010/07/20 14:01:17 draenog - up to 2.0 - remove needless pmake.patch - add patch for TK_WIDGET_STATE undefined error (taken from Debian) Revision 1.8 2010/01/01 22:33:08 sparky - BR capitalization Revision 1.7 2007/02/12 22:09:25 glen - tabs in preamble Revision 1.6 2007/02/12 01:06:40 baggins - converted to UTF-8 Revision 1.5 2005/08/03 18:52:26 qboosh - better errors explanation Revision 1.4 2005/08/03 18:38:12 qboosh - pl fixes, cosmetics Revision 1.3 2005/08/01 15:45:03 witekfl - added pmake.patch - rel 0.2 Revision 1.2 2005/07/31 21:50:34 glen - fix for multiple make jobs failing build - doesn't build on amd64 Revision 1.1 2005/07/31 21:39:43 havner - by Jacek 'jackass' Brzozowski - BR fixes xoscope-2.2/oscope.dat0000664000175000017500000000033112414417057011744 00000000000000# xoscope, version 1.5, 640x480 # # -a 1 # -r 44100 # -s 10/1 # -t 0:0:x # -c 4 # -d 4 # -m 0 # -p 2 # -g 2 # -1 0:1/1:x # -2 0:1/1:y # -3 0:1/1:z # -4 +0:1/1:0 # -5 +0:1/1:0 # -6 +0:1/1:0 # -7 +0:1/1:0 # -8 +0:1/1:0 xoscope-2.2/xoscope.rc0000664000175000017500000000554012453771524012004 00000000000000#style "violet_help_label" { fg[NORMAL] = "Violet" fg[INSENSITIVE] = "Black" fg[PRELIGHT] = "Black" fg[ACTIVE] = "Black" fg[SELECTED] = "Black" bg[NORMAL] = "Violet" bg[INSENSITIVE] = "Black" bg[PRELIGHT] = "Black" bg[ACTIVE] = "Black" bg[SELECTED] = "Black" text[NORMAL] = "Violet" text[INSENSITIVE] = "Black" text[PRELIGHT] = "Black" text[ACTIVE] = "Black" text[SELECTED] = "Black" base[NORMAL] = "Violet" base[INSENSITIVE] = "Black" base[PRELIGHT] = "Black" base[ACTIVE] = "Black" base[SELECTED] = "Black" } style "black_bg" { bg[NORMAL] = "Black" } style "red_bg" { bg[NORMAL] = "Red"} style "label_font" { font_name = "Helvetica 16" } style "white" { fg[NORMAL] = "White" } style "green" { fg[NORMAL] = "Light Green" } style "cyan" { fg[NORMAL] = "Cyan" } style "yellow" { fg[NORMAL] = "Yellow" } style "orange" { fg[NORMAL] = "Orange" } style "violet" { fg[NORMAL] = "Violet" } style "blue" { fg[NORMAL] = "Blue" } style "red" { fg[NORMAL] = "Red" } style "red_scrollbar" { fg[NORMAL] = "White" fg[PRELIGHT] = "White" fg[ACTIVE] = "White" bg[NORMAL] = "#a00000" bg[PRELIGHT] = "Red" bg[ACTIVE] = "#600000" } widget "main_window" style "black_bg" widget "main_window.*.databox" style "black_bg" widget "main_window.*.databox_aspectframe" style "red_bg" widget "main_window.*.databox_hscrollbar" style "red_scrollbar" # This has the effect of not only setting color and font for labels # not specified below, but also of setting font for all the labels # because the fonts aren't specified below #widget "main_window.*_label" style "label_font" widget "main_window.*_label" style "white" widget "*.data_source_label" style "white" widget "*.fps_label" style "white" widget "*.sample_rate_label" style "green" widget "*.samples_per_frame_label" style "green" widget "*.period_label" style "green" widget "*.min_max_label" style "green" widget "*.Ch1*" style "green" #widget "*.Ch1*" style "red_bg" widget "*.Ch2*" style "cyan" widget "*.Ch3*" style "yellow" widget "*.Ch4*" style "orange" widget "*.Ch5*" style "violet" widget "*.Ch6*" style "blue" widget "*.Ch7*" style "red" widget "*.Ch8*" style "white" widget "*.*_key_label" style "violet" widget "*.*_help_label" style "green" widget "*.quit_help_label" style "white" widget "*.load_help_label" style "white" widget "*.load_help_label" style "white" widget "*.save_help_label" style "white" widget "*.xoscope_help_label" style "white" widget "*.version_help_label" style "white" widget "*.help_label" style "white" widget "*.refresh_help_label" style "white" widget "*.graticule_help_label" style "white" widget "*.graticule_position_help_label" style "white" widget "*.color_help_label" style "white" # This one's a bit special - it's a key label, but not a "*_key_label" # so it doesn't appear and disappear and therefore has to be set explicitly widget "*.question_mark_label" style "violet" #widget "*.left_paren_key_label" style "red" xoscope-2.2/COPYING0000664000175000017500000004311612453771524011032 00000000000000 GNU GENERAL PUBLIC LICENSE Version 2, June 1991 Copyright (C) 1989, 1991 Free Software Foundation, Inc. 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA Everyone is permitted to copy and distribute verbatim copies of this license document, but changing it is not allowed. Preamble The licenses for most software are designed to take away your freedom to share and change it. By contrast, the GNU General Public License is intended to guarantee your freedom to share and change free software--to make sure the software is free for all its users. This General Public License applies to most of the Free Software Foundation's software and to any other program whose authors commit to using it. (Some other Free Software Foundation software is covered by the GNU Library General Public License instead.) You can apply it to your programs, too. When we speak of free software, we are referring to freedom, not price. Our General Public Licenses are designed to make sure that you have the freedom to distribute copies of free software (and charge for this service if you wish), that you receive source code or can get it if you want it, that you can change the software or use pieces of it in new free programs; and that you know you can do these things. To protect your rights, we need to make restrictions that forbid anyone to deny you these rights or to ask you to surrender the rights. These restrictions translate to certain responsibilities for you if you distribute copies of the software, or if you modify it. For example, if you distribute copies of such a program, whether gratis or for a fee, you must give the recipients all the rights that you have. You must make sure that they, too, receive or can get the source code. And you must show them these terms so they know their rights. We protect your rights with two steps: (1) copyright the software, and (2) offer you this license which gives you legal permission to copy, distribute and/or modify the software. Also, for each author's protection and ours, we want to make certain that everyone understands that there is no warranty for this free software. If the software is modified by someone else and passed on, we want its recipients to know that what they have is not the original, so that any problems introduced by others will not reflect on the original authors' reputations. Finally, any free program is threatened constantly by software patents. We wish to avoid the danger that redistributors of a free program will individually obtain patent licenses, in effect making the program proprietary. To prevent this, we have made it clear that any patent must be licensed for everyone's free use or not licensed at all. The precise terms and conditions for copying, distribution and modification follow. GNU GENERAL PUBLIC LICENSE TERMS AND CONDITIONS FOR COPYING, DISTRIBUTION AND MODIFICATION 0. This License applies to any program or other work which contains a notice placed by the copyright holder saying it may be distributed under the terms of this General Public License. The "Program", below, refers to any such program or work, and a "work based on the Program" means either the Program or any derivative work under copyright law: that is to say, a work containing the Program or a portion of it, either verbatim or with modifications and/or translated into another language. (Hereinafter, translation is included without limitation in the term "modification".) Each licensee is addressed as "you". Activities other than copying, distribution and modification are not covered by this License; they are outside its scope. The act of running the Program is not restricted, and the output from the Program is covered only if its contents constitute a work based on the Program (independent of having been made by running the Program). Whether that is true depends on what the Program does. 1. You may copy and distribute verbatim copies of the Program's source code as you receive it, in any medium, provided that you conspicuously and appropriately publish on each copy an appropriate copyright notice and disclaimer of warranty; keep intact all the notices that refer to this License and to the absence of any warranty; and give any other recipients of the Program a copy of this License along with the Program. You may charge a fee for the physical act of transferring a copy, and you may at your option offer warranty protection in exchange for a fee. 2. You may modify your copy or copies of the Program or any portion of it, thus forming a work based on the Program, and copy and distribute such modifications or work under the terms of Section 1 above, provided that you also meet all of these conditions: a) You must cause the modified files to carry prominent notices stating that you changed the files and the date of any change. b) You must cause any work that you distribute or publish, that in whole or in part contains or is derived from the Program or any part thereof, to be licensed as a whole at no charge to all third parties under the terms of this License. c) If the modified program normally reads commands interactively when run, you must cause it, when started running for such interactive use in the most ordinary way, to print or display an announcement including an appropriate copyright notice and a notice that there is no warranty (or else, saying that you provide a warranty) and that users may redistribute the program under these conditions, and telling the user how to view a copy of this License. (Exception: if the Program itself is interactive but does not normally print such an announcement, your work based on the Program is not required to print an announcement.) These requirements apply to the modified work as a whole. If identifiable sections of that work are not derived from the Program, and can be reasonably considered independent and separate works in themselves, then this License, and its terms, do not apply to those sections when you distribute them as separate works. But when you distribute the same sections as part of a whole which is a work based on the Program, the distribution of the whole must be on the terms of this License, whose permissions for other licensees extend to the entire whole, and thus to each and every part regardless of who wrote it. Thus, it is not the intent of this section to claim rights or contest your rights to work written entirely by you; rather, the intent is to exercise the right to control the distribution of derivative or collective works based on the Program. In addition, mere aggregation of another work not based on the Program with the Program (or with a work based on the Program) on a volume of a storage or distribution medium does not bring the other work under the scope of this License. 3. You may copy and distribute the Program (or a work based on it, under Section 2) in object code or executable form under the terms of Sections 1 and 2 above provided that you also do one of the following: a) Accompany it with the complete corresponding machine-readable source code, which must be distributed under the terms of Sections 1 and 2 above on a medium customarily used for software interchange; or, b) Accompany it with a written offer, valid for at least three years, to give any third party, for a charge no more than your cost of physically performing source distribution, a complete machine-readable copy of the corresponding source code, to be distributed under the terms of Sections 1 and 2 above on a medium customarily used for software interchange; or, c) Accompany it with the information you received as to the offer to distribute corresponding source code. (This alternative is allowed only for noncommercial distribution and only if you received the program in object code or executable form with such an offer, in accord with Subsection b above.) The source code for a work means the preferred form of the work for making modifications to it. For an executable work, complete source code means all the source code for all modules it contains, plus any associated interface definition files, plus the scripts used to control compilation and installation of the executable. However, as a special exception, the source code distributed need not include anything that is normally distributed (in either source or binary form) with the major components (compiler, kernel, and so on) of the operating system on which the executable runs, unless that component itself accompanies the executable. If distribution of executable or object code is made by offering access to copy from a designated place, then offering equivalent access to copy the source code from the same place counts as distribution of the source code, even though third parties are not compelled to copy the source along with the object code. 4. You may not copy, modify, sublicense, or distribute the Program except as expressly provided under this License. Any attempt otherwise to copy, modify, sublicense or distribute the Program is void, and will automatically terminate your rights under this License. However, parties who have received copies, or rights, from you under this License will not have their licenses terminated so long as such parties remain in full compliance. 5. You are not required to accept this License, since you have not signed it. However, nothing else grants you permission to modify or distribute the Program or its derivative works. These actions are prohibited by law if you do not accept this License. Therefore, by modifying or distributing the Program (or any work based on the Program), you indicate your acceptance of this License to do so, and all its terms and conditions for copying, distributing or modifying the Program or works based on it. 6. Each time you redistribute the Program (or any work based on the Program), the recipient automatically receives a license from the original licensor to copy, distribute or modify the Program subject to these terms and conditions. You may not impose any further restrictions on the recipients' exercise of the rights granted herein. You are not responsible for enforcing compliance by third parties to this License. 7. If, as a consequence of a court judgment or allegation of patent infringement or for any other reason (not limited to patent issues), conditions are imposed on you (whether by court order, agreement or otherwise) that contradict the conditions of this License, they do not excuse you from the conditions of this License. If you cannot distribute so as to satisfy simultaneously your obligations under this License and any other pertinent obligations, then as a consequence you may not distribute the Program at all. For example, if a patent license would not permit royalty-free redistribution of the Program by all those who receive copies directly or indirectly through you, then the only way you could satisfy both it and this License would be to refrain entirely from distribution of the Program. If any portion of this section is held invalid or unenforceable under any particular circumstance, the balance of the section is intended to apply and the section as a whole is intended to apply in other circumstances. It is not the purpose of this section to induce you to infringe any patents or other property right claims or to contest validity of any such claims; this section has the sole purpose of protecting the integrity of the free software distribution system, which is implemented by public license practices. Many people have made generous contributions to the wide range of software distributed through that system in reliance on consistent application of that system; it is up to the author/donor to decide if he or she is willing 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. 8. If the distribution and/or use of the Program is restricted in certain countries either by patents or by copyrighted interfaces, the original copyright holder who places the Program 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. 9. The Free Software Foundation may publish revised and/or new versions of the 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 Program 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 Program does not specify a version number of this License, you may choose any version ever published by the Free Software Foundation. 10. If you wish to incorporate parts of the Program into other free programs whose distribution conditions are different, 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 11. BECAUSE THE PROGRAM IS LICENSED FREE OF CHARGE, THERE IS NO WARRANTY FOR THE PROGRAM, TO THE EXTENT PERMITTED BY APPLICABLE LAW. EXCEPT WHEN OTHERWISE STATED IN WRITING THE COPYRIGHT HOLDERS AND/OR OTHER PARTIES PROVIDE THE PROGRAM "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 PROGRAM IS WITH YOU. SHOULD THE PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF ALL NECESSARY SERVICING, REPAIR OR CORRECTION. 12. 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 PROGRAM 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 PROGRAM (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 PROGRAM TO OPERATE WITH ANY OTHER PROGRAMS), 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 Programs If you develop a new program, and you want it to be of the greatest possible use to the public, the best way to achieve this is to make it free software which everyone can redistribute and change under these terms. To do so, attach the following notices to the program. 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. Copyright (C) This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 2 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 General Public License for more details. You should have received a copy of the GNU General Public License along with this program; 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. If the program is interactive, make it output a short notice like this when it starts in an interactive mode: Gnomovision version 69, Copyright (C) year name of author Gnomovision comes with ABSOLUTELY NO WARRANTY; for details type `show w'. This is free software, and you are welcome to redistribute it under certain conditions; type `show c' for details. The hypothetical commands `show w' and `show c' should show the appropriate parts of the General Public License. Of course, the commands you use may be called something other than `show w' and `show c'; they could even be mouse-clicks or menu items--whatever suits your program. You should also get your employer (if you work as a programmer) or your school, if any, to sign a "copyright disclaimer" for the program, if necessary. Here is a sample; alter the names: Yoyodyne, Inc., hereby disclaims all copyright interest in the program `Gnomovision' (which makes passes at compilers) written by James Hacker. , 1 April 1989 Ty Coon, President of Vice This General Public License does not permit incorporating your program into proprietary programs. If your program is a subroutine library, you may consider it more useful to permit linking proprietary applications with the library. If this is what you want to do, use the GNU Library General Public License instead of this License. xoscope-2.2/func.h0000664000175000017500000000236012461323605011067 00000000000000/* -*- mode: C++; indent-tabs-mode: nil; fill-column: 100; c-basic-offset: 4; -*- * * Copyright (C) 1996 - 1997 Tim Witham * * (see the files README and COPYING for more details) * * xoscope math function definitions and prototypes * */ #define FUNCLEFT 0 #define FUNCRIGHT 1 #define FUNCPS 2 #define FUNCMEM 3 #define FUNCEXT 4 #define FUNC0 5 #define EXTSTOP 0 #define EXTSTART 1 #define EXTRUN 2 #if 0 #define FFT_TEST #endif struct signal_stats { short min; /* Minimum signal value */ short max; /* Maximum signal value */ int time; int freq; #ifdef CALC_RMS double rms ; #endif }; void set_save_pending(char c); void do_save_pending(void); void save(int i, int src); void recall_on_channel(Signal *, Channel *); void recall(Signal *); void next_func(void); void prev_func(void); int function_bynum_on_channel(int, Channel *); void start_command_on_channel(const char *, Channel *); void startcommand(const char *); void start_perl_function(const char *); void restart_external_commands(void); void init_math(void); int update_math_signals(void); void do_math(void); void cleanup_math(void); void measure_data(Channel *, struct signal_stats *); xoscope-2.2/INSTALL0000664000175000017500000001722712414417057011027 00000000000000Basic Installation ================== These are generic installation instructions. 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, a file `config.cache' that saves the results of its tests to speed up reconfiguring, and a file `config.log' containing compiler output (useful mainly for debugging `configure'). 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 at some point `config.cache' contains results you don't want to keep, you may remove or edit it. The file `configure.in' is used to create `configure' by a program called `autoconf'. You only need `configure.in' 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. If you're using `csh' on an old version of System V, you might need to type `sh ./configure' instead to prevent `csh' from trying to execute `configure' itself. Running `configure' takes awhile. 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. You can give `configure' initial values for variables by setting them in the environment. Using a Bourne-compatible shell, you can do that on the command line like this: CC=c89 CFLAGS=-O2 LIBS=-lposix ./configure Or on systems that have the `env' program, you can do it like this: env CPPFLAGS=-I/usr/local/include LDFLAGS=-s ./configure 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 must use a version of `make' that supports the `VPATH' variable, such as 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 `..'. If you have to use a `make' that does not supports the `VPATH' variable, you have 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' will install the package's files in `/usr/local/bin', `/usr/local/man', etc. You can specify an installation prefix other than `/usr/local' by giving `configure' the option `--prefix=PATH'. You can specify separate installation prefixes for architecture-specific files and architecture-independent files. If you give `configure' the option `--exec-prefix=PATH', the package will use PATH as the prefix for installing programs and libraries. Documentation and other data files will still use the regular prefix. In addition, if you use an unusual directory layout you can give options like `--bindir=PATH' 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' can not figure out automatically, but needs to determine by the type of host the package will run on. Usually `configure' can figure that out, but if it prints a message saying it can not guess the host type, give it the `--host=TYPE' option. TYPE can either be a short name for the system type, such as `sun4', or a canonical name with three fields: CPU-COMPANY-SYSTEM 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 host type. If you are building compiler tools for cross-compiling, you can also use the `--target=TYPE' option to select the type of system they will produce code for and the `--build=TYPE' option to select the type of system on which you are compiling the package. 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. Operation Controls ================== `configure' recognizes the following options to control how it operates. `--cache-file=FILE' Use and save the results of the tests in FILE instead of `./config.cache'. Set FILE to `/dev/null' to disable caching, for debugging `configure'. `--help' Print a summary of the options to `configure', and exit. `--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. `--version' Print the version of Autoconf used to generate the `configure' script, and exit. `configure' also accepts some other, not widely useful, options. xoscope-2.2/configure.ac0000664000175000017500000001177412766652501012272 00000000000000dnl Process this file with autoconf to produce a configure script. dnl Copyright (C) 1996 - 2001 Tim Witham dnl (see the files README and COPYING for more details) AC_INIT([xoscope], [2.2]) AM_INIT_AUTOMAKE AC_CONFIG_HEADERS(config.h) AC_ISC_POSIX AC_PROG_CC AM_PROG_CC_STDC AC_HEADER_STDC PKG_CHECK_MODULES(GTK, gtk+-2.0 >= 2.2) PKG_CHECK_MODULES(GTKDATABOX, gtkdatabox) PKG_CHECK_MODULES(FFTW3, fftw3) dnl Use -Wall if we have gcc. changequote(,)dnl if test "x$GCC" = "xyes"; then case " $CFLAGS " in *[\ \ ]-Wall[\ \ ]*) ;; *) CFLAGS="$CFLAGS -Wall" ;; esac fi changequote([,])dnl dnl X11 checks AC_PATH_XTRA if test "-DX_DISPLAY_MISSING" = "$X_CFLAGS"; then AC_MSG_ERROR(can not find X11) fi AC_SUBST(X_CFLAGS) AC_SUBST(X_PRE_LIBS) AC_SUBST(X_EXTRA_LIBS) AC_SUBST(X_LIBS) AC_SUBST(x_libraries) dnl Checks for programs. AC_PATH_PROG(PERL, perl, /usr/bin/perl) AC_DEFINE_UNQUOTED(PERL, "$ac_cv_path_PERL", [Path to Perl executable]) dnl Checks for libraries. AC_CHECK_LIB(esd, esd_monitor_stream) AC_CHECK_LIB(m, sin) AC_ARG_WITH([comedi], [AS_HELP_STRING([--with-comedi], [support data acquisition hardwith with COMEDI library])], [], [with_comedi=check]) AS_IF([test "x$with_comedi" != xno], [AC_CHECK_LIB(comedi, comedi_open,, [if test "x$with_comedi" != xcheck; then AC_MSG_FAILURE( [--with-comedi was given, but test for COMEDI failed]) fi ])]) AS_IF([test "$ac_cv_lib_comedi_comedi_open" = "yes"], [AC_MSG_CHECKING([how many arguments comedi_get_cmd_generic_timed takes]) AC_COMPILE_IFELSE([AC_LANG_SOURCE([ #include main() { comedi_get_cmd_generic_timed(NULL, NULL, NULL, 0, 0); }])], comedi_get_cmd_generic_timed=5args, comedi_get_cmd_generic_timed=4args) if test x"$comedi_get_cmd_generic_timed" = x5args; then AC_DEFINE([COMEDI_GET_CMD_GENERIC_TIMED_TAKES_5_ARGS],1,[Descr]) AC_MSG_RESULT(5) else AC_MSG_RESULT(4) fi ]) AC_CHECK_LIB(fftw3, fftw_execute) AC_CHECK_LIB(asound, snd_pcm_hw_params) dnl Check for optional features in gtkdatabox library AC_CHECK_LIB(gtkdatabox, gtk_databox_grid_set_line_style, [AC_DEFINE([HAVE_GRID_LINESTYLE], [1], [Define if gtkdatabox supports setting grid line styles.])]) dnl This, believe it or not, is the suggested syntax for checking the dnl result of a previously run test - in our case, for setting an dnl automake variable based on the result of an autoconf test. See dnl "Defining C Preprocessor Symbols" in the autoconf info docs. AM_CONDITIONAL(COMEDI, test "$ac_cv_lib_comedi_comedi_open" = "yes") AM_CONDITIONAL(ESD, test "$ac_cv_lib_esd_esd_monitor_stream" = "yes") AM_CONDITIONAL(ASOUND, test "$ac_cv_lib_asound_snd_pcm_hw_params" = "yes") AC_SUBST(XOSCOPE) dnl Checks for header files. AC_HEADER_DIRENT AC_HEADER_STDC AC_HEADER_SYS_WAIT AC_CHECK_HEADERS(fcntl.h limits.h sys/ioctl.h sys/time.h termio.h unistd.h) dnl Checks for typedefs, structures, and compiler characteristics. AC_C_CONST AC_TYPE_SIZE_T AC_HEADER_TIME AC_STRUCT_TM dnl Checks for library functions. AC_PROG_GCC_TRADITIONAL AC_HEADER_MAJOR AC_TYPE_SIGNAL AC_CHECK_FUNCS(getcwd putenv select strdup strstr strtol) dnl Program defaults for the command-line options (original values) AC_DEFINE(DEF_A, 1, [active channel]) AC_DEFINE(DEF_R, 44100, [sample rate in Hz]) AC_DEFINE(DEF_S, 10, [time scale in ms/div]) AC_DEFINE(DEF_T, "0:0:x", [trigger level]) AC_DEFINE(DEF_L, "1:1:0", [cursor lines]) AC_DEFINE(DEF_FX, "8x16", [X11 font]) AC_DEFINE(DEF_P, 2, [plot mode 2 (lines, sweep)]) AC_DEFINE(DEF_G, 2, [full graticle display]) AC_DEFINE(DEF_B, 0, [graticle in front of data]) AC_DEFINE(DEF_V, 0, [verbose display off]) AC_DEFINE(MAXWID, 1024 * 256, [maximum number of samples stored in memories]) AC_DEFINE(SAMPLESKIP, 32, [samples to discard after a reset]) AC_DEFINE(DISCARDBUF, 16384, [maximum samples to discard at each pass if we have too many]) AC_DEFINE(CHANNELS, 8, [max number of channels]) AC_DEFINE(MSECREFRESH, 30, [minimum number of milliseconds between refresh on libsx version]) AC_DEFINE(HELPCOMMAND, "man -Tutf8 xoscope 2>&1", [shell command for X11 help]) AC_DEFINE(FILENAME, "oscope.dat", [default file name]) AC_DEFINE(COMMAND, "operl '$x + $y'", [default external command pipe]) AC_DEFINE(FFT_DSP_LEN, 440, [output from fft is compressed (or streched) to that number of bands]) AC_DEFINE(DEFAULT_ALSADEVICE, ["default"], [default ALSA soundcard device]) dnl Set CALC_RMS to "1" if you deal mostly with sinusoidal signals. dnl Might be confusing with audio signals. AC_DEFINE(CALC_RMS, 0, [calculate RMS of captured signal]) dnl Set SC_16BIT to "1" if you want 16 bit resolution from sound card AC_DEFINE(SC_16BIT, 0, [use 16 bit format for sound card]) AC_OUTPUT([ Makefile xoscope.spec ]) AC_MSG_RESULT([ ALSA module: ${ac_cv_lib_asound_snd_pcm_hw_params} ESD module: ${ac_cv_lib_esd_esd_monitor_stream} COMEDI module: ${ac_cv_lib_comedi_comedi_open} ]) xoscope-2.2/xoscope.glade0000664000175000017500000031776412471756476012503 00000000000000 False COMEDI Options dialog True True False True False end True False 8 OK True True True False False True False False 0 Apply True True True False False True False False 1 Cancel True True True False False True False False 2 False False 0 False True end 0 True False 10 5 2 10 10 True False 0 Device: center GTK_FILL True False 0 Subdevice: center 1 2 GTK_FILL True True • False False True True 1 2 True False 0 Sampling rate (Hz): center 2 3 GTK_FILL True True • False False True True 1 2 2 3 GTK_EXPAND True False 0 Analog reference: center 4 5 GTK_FILL True False Ground True True False False True True True False False 0 Differential True True False False True True True False False 1 Common True True False False True True True False False 2 1 2 4 5 GTK_FILL GTK_FILL True False 0 Buffer size (bytes): center 3 4 GTK_FILL True False Default True True False False True True True False False 0 Custom: True True False False True True True False False 1 True True • False False True True True True 2 1 2 3 4 GTK_FILL GTK_FILL True False 1 2 1 2 True True 2 True False xoscope True False True False True False 1 (Esc) 5 False False 0 True False 0 Quit 5 False False 1 True False 0 xoscope 8 False True 2 True False period center True True 3 True False 1 (Enter) right 6 False True 4 True False 0 Refresh 8 False False 5 False True 0 True False True False 1 (@) 5 False False 0 True False 0 Load 5 False False 1 True False 0 ver: x.x 8 False True 2 True False min-max True True 3 True False 1 (,) 6 False True 4 True False 0 Graticule 8 False False 5 False True 1 True False True False 1 (#) 5 False False 0 True False 0 Save 15 False False 1 True False (_) (-) False True 2 True False trigger True True 3 True False (=) (+) False False 4 True False fps 10 False True 5 True False (.) False False 6 True False 0 In Front 8 False False 7 False True 2 True False True False 1 (&) 5 False False 0 True False 0 source 10 False True 1 True False (*) False False 2 True False opt1 False False 3 True False trigger source True True 4 True False (?) False False 5 True False 0 Help 8 False False 6 False True 3 True False True False 1 (!) 13 False False 0 True False 0 line style True True 1 True False scroll mode True True 2 True False 1 (space) True True 3 True False 0 run-stop True True 4 False False 4 True False 5 True False True False 0 True False 12 True False 3 True False Channel 1 False False 0 True False Ch1_scale False False 1 True False Ch1_position False False 2 True False Ch1_source False False 3 True True 0 True False 0 True False 12 True False True False Channel 2 False False 0 True False Ch2_scale False False 1 True False Ch2_position False False 2 True False Ch2_source False False 3 True True 1 True False 0 True False 12 True False True False Channel 3 False False 0 True False Ch3_scale False False 1 True False Ch3_position False False 2 True False Ch3_source False False 3 True True 2 True False 0 True False 12 True False True False Channel 4 False False 0 True False Ch4_scale False False 1 True False Ch4_position False False 2 True False Ch4_source False False 3 True True 3 False True 0 True False 0 False True False True False True True 0 True False False True 1 True True 1 True False True False 0 True False 12 True False True False Channel 5 False False 0 True False Ch5_scale False False 1 True False Ch5_position False False 2 True False Ch5_source False False 3 True True 0 True False 0 True False 12 True False True False Channel 6 False False 0 True False Ch6_scale False False 1 True False Ch6_position False False 2 True False Ch6_source False False 3 True True 1 True False 0 True False 12 True False True False Channel 7 False False 0 True False Ch7_scale False False 1 True False Ch7_position False False 2 True False Ch7_source False False 3 True True 2 True False 0 True False 12 True False True False Channel 8 False False 0 True False Ch8_scale False False 1 True False Ch8_position False False 2 True False Ch8_source False False 3 True True 3 False True 2 True True 5 True False True False True False True False (Tab) False False 0 True False Visible False False 1 False True 0 True False True False ({) False False 0 True False Scale True False False 1 True False (}) False False 2 False False 1 True False True False ([) False False 0 True False Pos. True False False 1 True False (]) False False 2 False False 2 True False True False (^) False False 0 True False opt2 False True 1 False False 3 False True 0 True False True False True False 0 status 0 True True 0 True False (9) False False 1 True False timebase 10 False True 2 True False (0) False False 3 True False 1 status 1 right True True 4 False True 0 True False True False 0 status 2 True True 0 True False (() False False 1 True False sample rate False True 2 True False ()) False False 3 True False 1 status 3 right True True 4 False True 1 True False True False 0 status 4 True True 0 True False samples per frame False True 1 True False 1 status 5 right True True 2 False True 2 True False True False 0 status 6 True True 0 True False ( False False 1 True False registers False True 2 True False ) False False 3 True False 1 status 7 right True True 4 False True 3 True True 1 True False True False True False (a-b) False False 0 True False Signal False False 1 False False 0 True False Memory False False 1 True False True False (A-W) False False 0 True False Store False False 1 False False 2 True False True False (a-z) False False 0 True False Recall False False 1 False False 3 False True 2 False False 6 xoscope-2.2/operl.help0000664000175000017500000000377412457536515012003 00000000000000 Arbitrary signal math with Perl functions Variables available for your function: $ch1 channel 1 input $ch2 channel 2 input $out output: '$out = ' is assumed before your function; don't use $out @ch1 channel 1 "memory", $ch1[0] = previous sample, $ch1[1] = one before that @ch2 channel 2 "memory", ... all the way to sample length @out output "memory", $out[0] = previous function output calculation, ... $t sample number, or "time", 0=left edge or trigger point $pi a constant: 3.14159265359, for your trigonometric convenience Example functions Functions of channel 1 (would also work for channel 2): abs($ch1) # rectify (absolute value) -$ch1 # negate (invert) $ch1 - $ch1[0] # integral or rate of change since last sample $ch1 - $ch1[2] # same but over more time (3 sample periods) $ch1 + 32 # add a "DC offset" of 32 sample units $t > 43 ? $ch1[43] : 0 # delay by 1 msec @ 44000 S/s = 44th sample Functions of both channel 1 and channel 2: $ch1 * $ch2 # multiply 1 * 2 $ch1 / ($ch2 || 1) # divide 1 / 2, avoiding divide by 0 error $ch2 / ($ch1 || 1) # divide 2 / 1 $ch1 > $ch2 ? $ch1 : $ch2 # max(1, 2) $ch1 < $ch2 ? $ch1 : $ch2 # min(1, 2) $ch1 + $ch2 # sum, like the oscope builtin $ch1 - $ch2 # diff, like the oscope builtin ($ch1 + $ch2) / 2 # average, like the oscope builtin Time position ($t) functions, independent of channel 1 and 2 inputs: $t / 88 % 2 ? 64 : -64 # 250 Hz square wave (88 = 44000 / 2 / 250) sin($t * $pi / 44) * 64 # 500 Hz sin wave (44 = 44000 / 2 / 500) cos($t * $pi / 22) * 64 # 1000 Hz cosine wave (22 = 44000 / 2 / 1000) Low-pass filter: a difference equation of previous input and output: 1.899105 * $out[0] - .901531 * $out[1] + .001213 * ($ch1 + $ch1[1] + 2 * $ch1[0]) xoscope-2.2/func.c0000664000175000017500000007704612501642031011067 00000000000000/* -*- mode: C++; indent-tabs-mode: nil; fill-column: 100; c-basic-offset: 4; -*- * * Copyright (C) 1996 - 2001 Tim Witham * * (see the files README and COPYING for more details) * * This file implements the signal math and memory. * To add math functions, search for !!! and add to those sections. * */ #include #include #include #include #include #include #include #include #include #include #include #include "xoscope.h" #include "fft.h" #include "display.h" #include "func.h" #include "xoscope_gtk.h" Signal mem[26]; /* 26 memories, corresponding to 26 letters */ short mem_pending[26]; /* Flags to indicate we wont to store a channel when a sweep is complete */ /* recall given memory register to the currently selected signal */ void recall_on_channel(Signal *signal, Channel *ch) { if (ch->signal) ch->signal->listeners --; ch->signal = signal; if (signal) { signal->listeners ++; /* no guarantee that signal->bits will be correct yet */ ch->bits = signal->bits; } } void recall(Signal *signal) { recall_on_channel(signal, &ch[scope.select]); } extern int in_progress; /* store the currently selected signal to the given memory register */ void set_save_pending(char c) { mem_pending[c - 'A'] = scope.select; } void do_save_pending(void) { int i; if(in_progress) return; for(i = 0; i < 26; i++){ if(mem_pending[i] >= 0){ save(i, mem_pending[i]); mem_pending[i] = -1; /* This is from the original code. * I'm not sure ist really needed. * Original comment follows: */ /* need this in case other chan displays mem */ clear(); } } } void save(int dest, int src) { if (ch[src].signal == NULL) return; /* Don't want the name - leave that at 'Memory x' * Also, increment frame instead of setting it to signal->frame in case signal->frame is the * same as mem's old frame number! */ if (mem[dest].data != NULL) { free(mem[dest].data); } mem[dest].data = malloc(ch[src].signal->width * sizeof(short)); if(mem[dest].data == NULL){ fprintf(stderr, "malloc failed in save()\n"); exit(0); } memcpy(mem[dest].data, ch[src].signal->data, ch[src].signal->width * sizeof(short)); mem[dest].rate = ch[src].signal->rate; mem[dest].num = ch[src].signal->width; mem[dest].width = ch[src].signal->width; mem[dest].frame ++; mem[dest].volts = ch[src].signal->volts; } /* !!! External process handling * * Could use some work... the original code (xoscope-1.8) always sent the first h_points data points * from the first two display channels through to the external process, even if the scaling on those * channels was set up so that weren't h_points of valid data, or set down so that what was * displayed was way more than h_points. In any event, I'm not a big fan of these math functions, * so I just left it alone like that. */ struct external { struct external *next; Signal signal; int pid; /* Zero if we already closed it down */ int to, from, errors; /* Pipes */ int last_frame_ch0, last_frame_ch1; int last_num_ch0, last_num_ch1; }; static struct external *externals = NULL; /* startcommand() / start_command_on_channel() * * Start an external command running on the current display channel. * * xoscope version 1.x included an auxilary program (operl) that could be invoked to display the * result of a Perl function. We now call perl directly, to avoid dependence on an external program * being installed. For backwards compatibility, external commands that begin with the string * "operl" as interpreted as perl functions. * * gr_* UIs call this after prompting for command to run */ void start_program_on_channel(const char *command, Channel *ch_select) { struct external *ext; int pid; int from[2], to[2], errors[2]; static char *path, *oscopepath; if (pipe(to) || pipe(from) || pipe(errors)) { /* get a set of pipes */ sprintf(error, "%s: can't create pipes", progname); perror(error); return; } signal(SIGPIPE, SIG_IGN); if ((pid = fork()) > 0) { /* parent */ close(to[0]); close(from[1]); close(errors[1]); } else if (pid == 0) { /* child */ int fd; dup2(to[0], 0); dup2(from[1], 1); dup2(errors[1], 2); /* We now want to close everything except the first three file descriptors (there can be a * lot of descriptors open in the parent, to other external programs, to the windowing * system, possibly to a file being loaded). We tacitly assume that pipe() assigned the * lowest available descriptors, so errors[1] should be our largest descriptor. */ for (fd=3; fd <= errors[1]; fd ++) { close(fd); } /* XXX add additional environment vars here for sampling rate and number of samples per * frame */ if ((oscopepath = getenv("OSCOPEPATH")) == NULL) { oscopepath = PACKAGE_LIBEXEC_DIR; } path = g_malloc(strlen(oscopepath) + 6); sprintf(path,"PATH=%s", oscopepath); putenv(path); execlp("/bin/sh", "sh", "-c", command, NULL); sprintf(error, "%s: child can't exec /bin/sh -c \"%s\"", progname, command); perror(error); exit(1); } else { /* fork error */ sprintf(error, "%s: can't fork", progname); perror(error); return; } ext = g_new0(struct external, 1); snprintf(ext->signal.savestr, sizeof(ext->signal.savestr), "%s", command); snprintf(ext->signal.name, sizeof(ext->signal.name), "%s", command); ext->pid = pid; ext->from = from[0]; ext->to = to[1]; ext->errors = errors[0]; fcntl(ext->errors, F_SETFL, O_NONBLOCK); /* XXX Here we inherit various parameters from channel 0. These should be set more * intelligently. */ if (ch[0].signal != NULL) { ext->signal.data = g_new(short, ch[0].signal->width); ext->signal.width = ch[0].signal->width; ext->signal.rate = ch[0].signal->rate; ext->signal.delay = ch[0].signal->delay; ext->signal.bits = ch[0].signal->bits; } ext->next = externals; externals = ext; recall_on_channel(&ext->signal, ch_select); ch[scope.select].show = 1; } void start_perl_function_on_channel(const char *command, Channel *ch_select) { struct external *ext; int pid; int program[2], from[2], to[2], errors[2]; FILE *program_FILE; static char *envvar; extern char * operl_program; if (pipe(program) || pipe(to) || pipe(from) || pipe(errors)) { /* get a set of pipes */ sprintf(error, "%s: can't create pipes", progname); perror(error); return; } signal(SIGPIPE, SIG_IGN); if ((pid = fork()) > 0) { /* parent */ close(program[0]); close(to[0]); close(from[1]); close(errors[1]); } else if (pid == 0) { /* child */ int fd; dup2(program[0], 0); dup2(to[0], 3); dup2(from[1], 1); dup2(errors[1], 2); /* We now want to close everything except the first four file descriptors (there can be a * lot of descriptors open in the parent, to other external programs, to the windowing * system, possibly to a file being loaded). We tacitly assume that pipe() assigned the * lowest available descriptors, so errors[1] should be our largest descriptor. */ for (fd=4; fd <= errors[1]; fd ++) { close(fd); } /* XXX add additional environment vars here for sampling rate and number of samples per * frame */ envvar = g_malloc(strlen(command) + 6); sprintf(envvar,"FUNC=%s", command); putenv(envvar); execlp(PERL, PERL, NULL); perror("can't exec " PERL); exit(1); } else { /* fork error */ sprintf(error, "%s: can't fork", progname); perror(error); return; } /* Send the embedded Perl script to the child on its stdin. */ program_FILE = fdopen(program[1], "w"); fputs(operl_program, program_FILE); fclose(program_FILE); ext = g_new0(struct external, 1); snprintf(ext->signal.savestr, sizeof(ext->signal.savestr), "operl '%s'", command); snprintf(ext->signal.name, sizeof(ext->signal.name), "%s", command); ext->pid = pid; ext->from = from[0]; ext->to = to[1]; ext->errors = errors[0]; fcntl(ext->errors, F_SETFL, O_NONBLOCK); /* XXX Here we inherit various parameters from channel 0. These should be set more * intelligently. */ if (ch[0].signal != NULL) { ext->signal.data = g_new(short, ch[0].signal->width); ext->signal.width = ch[0].signal->width; ext->signal.rate = ch[0].signal->rate; ext->signal.delay = ch[0].signal->delay; ext->signal.bits = ch[0].signal->bits; } ext->next = externals; externals = ext; recall_on_channel(&ext->signal, ch_select); ch[scope.select].show = 1; } void start_command_on_channel(const char *command, Channel *ch_select) { /* Check if command string starts with "operl ". If so, discard any quotes and leading/trailing * whitespace and handle the remainder of the string as a Perl function. * * This is done both for backwards compatibility and to retreive Perl functions from a save file. */ if (strncmp(command, "operl ", 6) == 0) { char * function; int i; for (i=6; isspace(command[i]); i++); function = g_strdup(command+i); while ((strlen(function) > 0) && isspace(function[strlen(function)-1])) { function[strlen(function)-1] = '\0'; } if (((function[0] == '\'') || (function[0] == '\"')) && (function[0] == function[strlen(function)-1])) { function[strlen(function)-1] = '\0'; start_perl_function_on_channel(function+1, ch_select); } else { start_perl_function_on_channel(function, ch_select); } g_free(function); } else { start_program_on_channel(command, ch_select); } } void startcommand(const char *command) { if (scope.select > 1) { start_command_on_channel(command, &ch[scope.select]); clear(); } } void start_perl_function(const char *command) { if (scope.select > 1) { start_perl_function_on_channel(command, &ch[scope.select]); clear(); } } void restart_external_commands(void) { struct external *ext; for (ext = externals; ext != NULL; ext = ext->next) { ext->signal.data = g_renew(short, ext->signal.data, ch[0].signal->width); ext->signal.width = ch[0].signal->width; ext->signal.num = 0; } } /* Check everything on the externals list; run what needs to be run, and clean up anything left * linguring behind. * * XXX externals shouldn't depend on having signals on both channels 1 and 2 */ static void run_externals(void) { struct external *ext; short *a, *b, *c; int i; char error_message[256]; for (ext = externals; ext != NULL; ext = ext->next) { if (ext->signal.listeners > 0) { if ((ext->pid > 0) && (ch[0].signal != NULL) && (ch[1].signal != NULL)) { /* There's a slight chance that if we change one of the channels, the new channel * may have a frame number identical to the last one, but that shouldn't hurt us too * bad. */ if ((ch[0].signal->frame != ext->last_frame_ch0) || (ch[1].signal->frame != ext->last_frame_ch1)) { ext->last_frame_ch0 = ch[0].signal->frame; ext->last_frame_ch1 = ch[1].signal->frame; ext->signal.frame ++; ext->signal.num = 0; } /* To avoid a race condition that might drop data or error messages, we check first * to see if the process has exited, then read from the pipes. */ if (waitpid(ext->pid, NULL, WNOHANG) == ext->pid) { ext->pid = 0; } /* Check for error messages on stderr, and display them to the user */ i = read(ext->errors, error_message, sizeof(error_message)-1); if (i > 0) { error_message[i] = '\0'; message(error_message); // XXX any perl errors realistically need this uncommented to debug them // fprintf(stderr, "%s", error_message); } /* We may already have sent and received part of a frame, so start our pointers at * whatever our last offset was, and keep going until we hit the limit of either * channel 0 or channel 1. * * XXX explain this better * XXX make sure this can't slow the program down! */ if ((ext->signal.width < ch[0].signal->width) && (ext->signal.width < ch[1].signal->width)) { ext->signal.data = g_renew(short, ext->signal.data, ch[0].signal->width); ext->signal.width = ch[0].signal->width; } a = ch[0].signal->data + ext->signal.num; b = ch[1].signal->data + ext->signal.num; c = ext->signal.data + ext->signal.num; for (i = ext->signal.num; (i < ch[0].signal->num) && (i < ch[1].signal->num); i++) { if (write(ext->to, a++, sizeof(short)) != sizeof(short)) break; if (write(ext->to, b++, sizeof(short)) != sizeof(short)) break; if (read(ext->from, c++, sizeof(short)) != sizeof(short)) break; } ext->signal.num = i; /* If we earlier determined that the process had exited, close the pipes down now * that we've read everything. */ if (ext->pid == 0) { close(ext->from); close(ext->to); close(ext->errors); ext->from = -1; ext->to = -1; ext->errors = -1; } } } else { /* Nobody listening anymore; close down the pipes and wait for process to exit. */ if (ext->from != -1) { close(ext->from); close(ext->to); close(ext->errors); ext->from = -1; ext->to = -1; ext->errors = -1; } if (ext->pid) { if (waitpid(ext->pid, NULL, WNOHANG) == ext->pid) { ext->pid = 0; /* XXX Delete ext from list and free() it */ } } } } } /* !!! The functions; they take one arg: a Signal ptr to store results in */ /* Invert */ void inv(Signal *dest, Signal *src) { int i; short *a, *b; if (src == NULL) return; dest->rate = src->rate; dest->num = src->num; dest->volts = src->volts; dest->frame = src->frame; a = src->data; b = dest->data; for (i = 0 ; i < src->num; i++) { *b++ = -1 * *a++; } } void inv1(Signal *sig) { inv(sig, ch[0].signal); } void inv2(Signal *sig) { inv(sig, ch[1].signal); } /* The sum of the two channels */ void sum(Signal *dest) { int i; short *a, *b, *c; int sum; if ((ch[0].signal == NULL) || (ch[1].signal == NULL)) return; a = ch[0].signal->data; b = ch[1].signal->data; c = dest->data; dest->frame = ch[0].signal->frame + ch[1].signal->frame; dest->num = ch[0].signal->num; if (dest->num > ch[1].signal->num) dest->num = ch[1].signal->num; for (i = 0 ; i < dest->num ; i++) { sum = *a++ + *b++; if(sum > SHRT_MAX) sum = SHRT_MAX; else if(sum < SHRT_MIN) sum = SHRT_MIN; *c++ = (short)sum; } } /* The difference of the two channels */ void diff(Signal *dest) { int i; short *a, *b, *c; int sum; if ((ch[0].signal == NULL) || (ch[1].signal == NULL)) return; a = ch[0].signal->data; b = ch[1].signal->data; c = dest->data; dest->frame = ch[0].signal->frame + ch[1].signal->frame; dest->num = ch[0].signal->num; if (dest->num > ch[1].signal->num) dest->num = ch[1].signal->num; for (i = 0 ; i < dest->num ; i++) { sum = *a++ - *b++; if(sum > SHRT_MAX) sum = SHRT_MAX; else if(sum < SHRT_MIN) sum = SHRT_MIN; *c++ = (short)sum; } } /* The average of the two channels */ void avg(Signal *dest) { int i; short *a, *b, *c; if ((ch[0].signal == NULL) || (ch[1].signal == NULL)) return; a = ch[0].signal->data; b = ch[1].signal->data; c = dest->data; dest->frame = ch[0].signal->frame + ch[1].signal->frame; dest->num = ch[0].signal->num; if (dest->num > ch[1].signal->num) dest->num = ch[1].signal->num; for (i = 0 ; i < dest->num ; i++) { *c++ = (*a++ + *b++) / 2; } } /* Fast Fourier Transform of channels 0 and 1 * * The point of the dest->frame calculation is that the value changes whenever the data changes, but * if the data is constant, it doesn't change. The display code only looks at changes in frame * number to decide when to redraw a signal; the actual value doesn't matter. */ void fft1(Signal *dest) { if (ch[0].signal == NULL) return; if (in_progress != 0 || !scope.run) return; fftW(ch[0].signal->data, dest->data, ch[0].signal->width); } #ifndef FFT_TEST void fft2(Signal *dest) { if (ch[1].signal == NULL) return; if (in_progress != 0 || !scope.run) return; fftW(ch[1].signal->data, dest->data, ch[1].signal->width); } #else void make_sin(short *data, int size, double freq, int rate) { int i; for(i = 0; i < size; i++){ data[i] = sin( 360.0 * ((1.0/((double)rate/freq)) * i) * M_PI / 180.0) * 100; } } void fft2(Signal *dest) { int i; static short *testdata = NULL; static int testdataWidth = -1; if (ch[1].signal == NULL){ fprintf(stderr, "fft2() ch[1].signal == NULL\n"); return; } if (in_progress != 0 || !scope.run){ return; } if(testdataWidth != ch[1].signal->width){ if(testdata != NULL) free(testdata); testdataWidth = ch[1].signal->width; testdata = malloc(testdataWidth * sizeof(short)); make_sin(testdata, testdataWidth, 2500.0, ch[1].signal->rate); } fftW(testdata, dest->data, testdataWidth); for(i = 0; i< FFT_DSP_LEN - 20; i+=20){ dest->data[i] = -80; if(i == 400) dest->data[i] = 80; } } #endif /* isvalid() functions for the various math functions. * * These functions also have the side effect of setting the volts/rate fields in the Signal * structure, something we count on happening whenever we call update_math_signals(), which calls * these functions. * * These functions are also responsible for mallocing the data areas in the math function's * associated Signal structures. */ int ch1active(Signal *dest) { dest->frame = 0; dest->num = 0; if (ch[0].signal == NULL) { dest->rate = 0; dest->volts = 0; return 0; } dest->rate = ch[0].signal->rate; dest->volts = ch[0].signal->volts; if (dest->width != ch[0].signal->width) { dest->width = ch[0].signal->width; if (dest->data != NULL) free(dest->data); dest->data = malloc(ch[0].signal->width * sizeof(short)); if(dest->data == NULL){ fprintf(stderr, "malloc failed in ch1active()\n"); exit(0); } } return 1; } int ch2active(Signal *dest) { dest->frame = 0; dest->num = 0; if (ch[1].signal == NULL) { dest->rate = 0; dest->volts = 0; return 0; } dest->rate = ch[1].signal->rate; dest->volts = ch[1].signal->volts; if (dest->width != ch[1].signal->width) { dest->width = ch[1].signal->width; if (dest->data != NULL) free(dest->data); dest->data = malloc(ch[1].signal->width * sizeof(short)); if(dest->data == NULL){ fprintf(stderr, "malloc failed in ch2active()\n"); exit(0); } } return 1; } int chs12active(Signal *dest) { dest->frame = 0; dest->num = 0; if ((ch[0].signal == NULL) || (ch[1].signal == NULL) || (ch[0].signal->rate != ch[1].signal->rate) || (ch[0].signal->volts != ch[1].signal->volts)) { dest->rate = 0; dest->volts = 0; return 0; } dest->rate = ch[0].signal->rate; dest->volts = ch[0].signal->volts; /* All of the associated functions (sum, diff, avg) only use the minimum of the samples on * Channels 1 and 2, so we can safely base the size of our data array on Channel 1 only... the * worst that can happen is that it is too big. */ if (dest->width != ch[0].signal->width) { dest->width = ch[0].signal->width; if (dest->data != NULL) free(dest->data); dest->data = malloc(ch[0].signal->width * sizeof(short)); if(dest->data == NULL){ fprintf(stderr, "malloc failed in ch12active()\n"); exit(0); } } return 1; } /* special isvalid() functions for FFT * * First, it allocates memory for the generated fft. * * Second, it sets the "rate", so that the increment from grid line to grid line is some "nice" * value. (a muliple of 500 Hz if increment is > 1kHz, otherwise a multiple of 100 hZ. * * Third: this value is stored in the "volts" member of the dest signal structure. It is only * displayed in the label. */ int ch1FFTactive(Signal *dest) { static int prevWidth = -1; if ((ch[0].signal != NULL) && (ch[0].signal->width != prevWidth)) { prevWidth = ch[0].signal->width; return(FFTactive(ch[0].signal, dest, TRUE)); } return(FFTactive(ch[0].signal, dest, FALSE)); } int ch2FFTactive(Signal *dest) { static int prevWidth = -1; if ((ch[1].signal != NULL) && (ch[1].signal->width != prevWidth)) { prevWidth = ch[1].signal->width; return(FFTactive(ch[1].signal, dest, TRUE)); } return(FFTactive(ch[1].signal, dest, FALSE)); } struct func { void (*func)(Signal *); char *name; int (*isvalid)(Signal *); /* returns TRUE if this function is valid */ Signal signal; }; struct func funcarray[] = { {inv1, "Inv. 1 ", ch1active}, {inv2, "Inv. 2 ", ch2active}, {sum, "Sum 1+2", chs12active}, {diff, "Diff 1-2", chs12active}, {avg, "Avg. 1,2", chs12active}, {fft1, "FFT. 1 ", ch1FFTactive}, {fft2, "FFT. 2 ", ch2FFTactive}, }; /* the total number of "functions" */ int funccount = sizeof(funcarray) / sizeof(struct func); /* Cycle current scope chan to next function, taking heavy advantage of C incrementing pointers by * the size of the thing they point to. Start by finding the current function in the function array * that the channel is pointing to, and advancing to the next one, selecting the first item in the * array if either we're currently pointing to the end of the array or pointing to something other * than a function. Then keep going, looking for the first function that returns TRUE to an * isvalid() test, taking care that none of the functions may currently be valid. */ void next_func(void) { struct func *func, *func2; Channel *chan = &ch[scope.select]; for (func = &funcarray[0]; func < &funcarray[funccount]; func++) { if (chan->signal == &func->signal) break; } if (func == &funcarray[funccount]) func = &funcarray[0]; else if (func == &funcarray[funccount-1]) func = &funcarray[0]; else func ++; /* At this point, func points to the candidate function structure. See if it's valid, and keep * going forward if it isn't */ func2 = func; do { if (func->isvalid(&func->signal)) { recall(&func->signal); return; } func ++; if (func == &funcarray[funccount]) func = &funcarray[0]; } while (func != func2); /* If we're here, it's because we went through all the functions without finding one that * returned valid. No choice but to clear the channel. */ recall(NULL); } /* Basically the same deal, but moving backwards in the array. */ void prev_func(void) { struct func *func, *func2; Channel *chan = &ch[scope.select]; for (func = &funcarray[0]; func < &funcarray[funccount]; func++) { if (chan->signal == &func->signal) break; } if (func == &funcarray[funccount]) func = &funcarray[funccount-1]; else if (func == &funcarray[0]) func = &funcarray[funccount-1]; else func --; /* At this point, func points to the candidate function structure. See if it's valid and go * further backwards if it isn't */ func2 = func; do { if (func->isvalid(&func->signal)) { recall(&func->signal); return; } func --; if (func < &funcarray[0]) func = &funcarray[funccount-1]; } while (func != func2); /* If we're here, it's because we went through all the functions without finding one that * returned valid. No choice but to clear the channel. */ recall(NULL); } int function_bynum_on_channel(int fnum, Channel *ch) { if ((fnum >= 0) && (fnum < funccount)) { recall_on_channel(&funcarray[fnum].signal, ch); return TRUE; } return FALSE; } /* Initialize math, called once by main at startup, and again whenever we read a file. */ void init_math(void) { static int i; static int once = 0; for (i = 0 ; i < 26 ; i++) { if (once==1 && mem[i].data != NULL) { free(mem[i].data); } mem[i].data = NULL; mem[i].num = mem[i].frame = mem[i].volts = 0; mem[i].listeners = 0; sprintf(mem[i].name, "Memory %c", 'a' + i); mem[i].savestr[0] = 'a' + i; mem[i].savestr[1] = '\0'; mem_pending[i] = -1; } for (i = 0; i < funccount; i++) { strcpy(funcarray[i].signal.name, funcarray[i].name); funcarray[i].signal.savestr[0] = '0' + i; funcarray[i].signal.savestr[1] = '\0'; } once=1; } /* update_math_signals() is called whenever 'something' has changed in the scope settings, and we * may need to recompute voltage and rate values for the generated math functions. We do this by * calling all the isvalid() functions for those math functions that have listeners, and return 0 if * everything's OK, or -1 if some of them are no longer valid. * * XXX I'm still not completely clear on just what we should do with invalid channels that have * listeners; don't want to arbitrarily clear them (I don't think), because then a single * inadvertent keystroke on channel 0 or 1 might clear a bunch of math. */ int update_math_signals(void) { int i; int retval = 0; for (i = 0; i < funccount; i++) { if (funcarray[i].signal.listeners > 0) { if (! funcarray[i].isvalid(&funcarray[i].signal)) retval = -1; } } return retval; } /* Perform any math on the software channels, called many times by main loop */ void do_math(void) { static int i; for (i = 0; i < funccount; i++) { if (funcarray[i].signal.listeners > 0 && funcarray[i].isvalid(&funcarray[i].signal)) { funcarray[i].func(&funcarray[i].signal); } } run_externals(); } /* Perform any math cleanup, called once by cleanup at program exit */ void cleanup_math(void) { EndFFTW(); } /* measure the given channel */ void measure_data(Channel *sig, struct signal_stats *stats) { int i, k; short val, prev; int min=0, max=0, midpoint=0; int first = 0, last = 0, count = 0, imax = 0; #if CALC_RMS int second = 0.0; #endif stats->min = 0; stats->max = 0; stats->time = 0; stats->freq = 0; #if CALC_RMS stats->rms = 0.0; #endif if ((sig->signal == NULL) || (sig->signal->num == 0)) return; /* XXX these calculations could probably overrun the data[] array if the cursors are not set * sensibly */ prev = 1; if (scope.curs) { /* manual cursor measurements */ if (scope.cursa < scope.cursb) { first = scope.cursa; last = scope.cursb; } else { first = scope.cursb; last = scope.cursa; } stats->min = stats->max = sig->signal->data[(int)first]; if ((val = sig->signal->data[(int)last]) < stats->min) stats->min = val; else if (val > stats->max) stats->max = val; count = 2; } else { /* automatic period measurements */ min = max = sig->signal->data[0]; for (i = 0 ; i < sig->signal->num ; i++) { val = sig->signal->data[i]; if (val < min) min = val; if (val > max) { max = val; imax = i; } } /* locate and count rising edges * tries to handle handle noise by looking at the next 10 values. */ midpoint = (min + max)/2; prev = max; for (i = 0; i < sig->signal->num; i++) { val = sig->signal->data[i]; if (val > midpoint && prev <= midpoint){ int rising = 0; for(k = i + 1; k < i + 11 && k < sig->signal->num; k++) { if(sig->signal->data[k] > val){ rising++; } } if(rising > 5){ if (!first) first = i; #if CALC_RMS else if (!second) second = i; #endif last = i; i = k; count++; } } prev = val; } #if CALC_RMS for (i = first; i < second; i++) { stats->rms += (sig->signal->data[i] * sig->signal->data[i]); } if((second - first) != 0){ stats->rms = sqrt(stats->rms / (second - first)); } else { stats->rms = -1; } #endif stats->min = min; stats->max = max; } if (sig->signal->rate < 0) { /* Special case for FFT - signal rate will be < 0, the negative of the frequency step for * each point in the transform, times 10. So multiply by the index of the maximum value to * get frequency peak. */ stats->freq = (- sig->signal->rate) * imax / 10; if (stats->freq > 0) stats->time = 1000000 / stats->freq; } else if ((sig->signal->rate > 0) && (count > 1)) { /* estimate frequency from rising edge count * assume a wave: period = length / # periods */ stats->time = (int)(1000000.0 * (last - first) / (count - 1) / sig->signal->rate); if (stats->time > 0){ stats->freq = (int)((1000000.0 / stats->time) +0.5); } } } xoscope-2.2/install-sh0000775000175000017500000001273612414417057012002 00000000000000#!/bin/sh # # install - install a program, script, or datafile # This comes from X11R5 (mit/util/scripts/install.sh). # # Copyright 1991 by the Massachusetts Institute of Technology # # Permission to use, copy, modify, distribute, and sell this software and its # documentation for any purpose is hereby granted without fee, provided that # the above copyright notice appear in all copies and that both that # copyright notice and this permission notice appear in supporting # documentation, and that the name of M.I.T. not be used in advertising or # publicity pertaining to distribution of the software without specific, # written prior permission. M.I.T. makes no representations about the # suitability of this software for any purpose. It is provided "as is" # without express or implied warranty. # # Calling this script install-sh is preferred over install.sh, to prevent # `make' implicit rules from creating a file called install from it # when there is no Makefile. # # This script is compatible with the BSD install script, but was written # from scratch. It can only install one file at a time, a restriction # shared with many OS's install programs. # set DOITPROG to echo to test this script # Don't use :- since 4.3BSD and earlier shells don't like it. doit="${DOITPROG-}" # put in absolute paths if you don't have them in your path; or use env. vars. mvprog="${MVPROG-mv}" cpprog="${CPPROG-cp}" chmodprog="${CHMODPROG-chmod}" chownprog="${CHOWNPROG-chown}" chgrpprog="${CHGRPPROG-chgrp}" stripprog="${STRIPPROG-strip}" rmprog="${RMPROG-rm}" mkdirprog="${MKDIRPROG-mkdir}" transformbasename="" transform_arg="" instcmd="$mvprog" chmodcmd="$chmodprog 0755" chowncmd="" chgrpcmd="" stripcmd="" rmcmd="$rmprog -f" mvcmd="$mvprog" src="" dst="" dir_arg="" while [ x"$1" != x ]; do case $1 in -c) instcmd="$cpprog" shift continue;; -d) dir_arg=true shift continue;; -m) chmodcmd="$chmodprog $2" shift shift continue;; -o) chowncmd="$chownprog $2" shift shift continue;; -g) chgrpcmd="$chgrpprog $2" shift shift continue;; -s) stripcmd="$stripprog" shift continue;; -t=*) transformarg=`echo $1 | sed 's/-t=//'` shift continue;; -b=*) transformbasename=`echo $1 | sed 's/-b=//'` shift continue;; *) if [ x"$src" = x ] then src=$1 else # this colon is to work around a 386BSD /bin/sh bug : dst=$1 fi shift continue;; esac done if [ x"$src" = x ] then echo "install: no input file specified" exit 1 else true fi if [ x"$dir_arg" != x ]; then dst=$src src="" if [ -d $dst ]; then instcmd=: chmodcmd="" else instcmd=mkdir fi else # Waiting for this to be detected by the "$instcmd $src $dsttmp" command # might cause directories to be created, which would be especially bad # if $src (and thus $dsttmp) contains '*'. if [ -f $src -o -d $src ] then true else echo "install: $src does not exist" exit 1 fi if [ x"$dst" = x ] then echo "install: no destination specified" exit 1 else true fi # If destination is a directory, append the input filename; if your system # does not like double slashes in filenames, you may need to add some logic if [ -d $dst ] then dst="$dst"/`basename $src` else true fi fi ## this sed command emulates the dirname command dstdir=`echo $dst | sed -e 's,[^/]*$,,;s,/$,,;s,^$,.,'` # Make sure that the destination directory exists. # this part is taken from Noah Friedman's mkinstalldirs script # Skip lots of stat calls in the usual case. if [ ! -d "$dstdir" ]; then defaultIFS=' ' IFS="${IFS-${defaultIFS}}" oIFS="${IFS}" # Some sh's can't handle IFS=/ for some reason. IFS='%' set - `echo ${dstdir} | sed -e 's@/@%@g' -e 's@^%@/@'` IFS="${oIFS}" pathcomp='' while [ $# -ne 0 ] ; do pathcomp="${pathcomp}${1}" shift if [ ! -d "${pathcomp}" ] ; then $mkdirprog "${pathcomp}" else true fi pathcomp="${pathcomp}/" done fi if [ x"$dir_arg" != x ] then $doit $instcmd $dst && if [ x"$chowncmd" != x ]; then $doit $chowncmd $dst; else true ; fi && if [ x"$chgrpcmd" != x ]; then $doit $chgrpcmd $dst; else true ; fi && if [ x"$stripcmd" != x ]; then $doit $stripcmd $dst; else true ; fi && if [ x"$chmodcmd" != x ]; then $doit $chmodcmd $dst; else true ; fi else # If we're going to rename the final executable, determine the name now. if [ x"$transformarg" = x ] then dstfile=`basename $dst` else dstfile=`basename $dst $transformbasename | sed $transformarg`$transformbasename fi # don't allow the sed command to completely eliminate the filename if [ x"$dstfile" = x ] then dstfile=`basename $dst` else true fi # Make a temp file name in the proper directory. dsttmp=$dstdir/#inst.$$# # Move or copy the file name to the temp name $doit $instcmd $src $dsttmp && trap "rm -f ${dsttmp}" 0 && # and set any options; do chmod last to preserve setuid bits # If any of these fail, we abort the whole thing. If we want to # ignore errors from any of these, just make sure not to ignore # errors from the above "$doit $instcmd $src $dsttmp" command. if [ x"$chowncmd" != x ]; then $doit $chowncmd $dsttmp; else true;fi && if [ x"$chgrpcmd" != x ]; then $doit $chgrpcmd $dsttmp; else true;fi && if [ x"$stripcmd" != x ]; then $doit $stripcmd $dsttmp; else true;fi && if [ x"$chmodcmd" != x ]; then $doit $chmodcmd $dsttmp; else true;fi && # Now rename the file to the real destination. $doit $rmcmd -f $dstdir/$dstfile && $doit $mvcmd $dsttmp $dstdir/$dstfile fi && exit 0 xoscope-2.2/xoscope.10000664000175000017500000003253612455271005011534 00000000000000.\" @(#)$Id: xoscope.1,v 2.5 2009/08/14 03:15:06 baccala Exp $ .\" .\" Copyright (C) 1996 - 2000 Tim Witham .\" .\" (see the files README and COPYING for more details) .TH XOSCOPE 1 "May 6 2001" "Linux" "User Commands" .SH NAME xoscope \- Digital Oscilloscope .SH SYNOPSIS xoscope [X toolkit options] [xoscope options] [file] .SH DESCRIPTION .B Xoscope is a digital real-time oscilloscope. It graphically displays signal amplitude or bit logic as a function of time. Signals may be displayed, saved, recalled, and manipulated by math functions. Signal input devices currently include: .P .TP 0.5i .B Soundcard Audio sound recording via Advanced Linux Sound Architecture (ALSA). Two 8-bit analog channels at 8000 S/s to 44100 S/s. Left and right audio is connected to A and B inputs respectively. Use an external mixer program to select which sound inputs to record. AC coupled, voltages unknown, 256K sample memory. .TP 0.5i .B EsounD Shared audio sound via the Enlightened Sound Daemon. This is great for watching music but support for it is an option at compile-time. EsounD is auto-detected and preferred over /dev/dsp. .TP 0.5i .B COMEDI The COMEDI project (www.comedi.org) develops Linux drivers, tools, and libraries for data acquisition. Many commercially available ADC cards are supported by COMEDI, and .B Xoscope can receive signals from them via the COMEDI library. .PP .SH "RUN\-TIME KEYBOARD CONTROLS" .B Xoscope is an interactive program and can be completely controlled from the keyboard at run-time. In verbose key help mode, each available key is shown on the screen in (parentheses). The following single key commands are available: .TP 0.5i .B ? Toggle verbose key help display mode. .TP 0.5i .B Escape Immediately quit the program. .TP 0.5i .B @ Load a previously saved file. You are prompted for the filename. .TP 0.5i .B # Save current settings and memory buffers to a file that can be loaded later. You are prompted for the filename and asked for confirmation to overwrite if it already exists. .TP 0.5i .B Enter Clear and refresh the entire screen. .TP 0.5i .B & Cycle between the various input devices. Note that this key will not toggle to an unresponsive input device, so if only one device is present, it will appear to have no effect. .TP 0.5i .B * Different behavior for different input devices Under EsounD, this value instead determines whether the connection to EsounD will block or not. Blocking mode is nicest to CPU usage but the .B xoscope interface will not respond when the there is no sound stream coming from EsounD. Nonblocking mode will let .B xoscope be responsive whether sound is available or not, but will consume all available CPU cycles. Under COMEDI, this key toggles between different analog reference points (ground, differential, or common). .TP 0.5i .B ^ Different behavior for different input devices .TP 0.5i .B (/) Decrease/increase the sampling rate. .TP 0.5i .B 9/0 Increase/decrease the Sec/Div horizontal time scale (zoom out/in on time). .TP 0.5i .B -/= Decrease/increase the trigger level. .TP 0.5i .B _ Cycle the trigger channel. .TP 0.5i .B + Cycle the trigger type: none, rising edge, or falling edge. .TP 0.5i .B Space Cycle the trigger mode: run, wait, stop. Run mode continuously acquires and displays samples after trigger events. Wait mode waits for the first trigger event and displays only the first set of samples; this is "single-shot" mode. Stop mode suspends the data acquisition and displays the current samples. .TP 0.5i .B ! Cycle the plotting mode: point, point accumulate, line, or line accumulate. In the accumulate modes, all samples stay on the screen; use .B Enter to clear them. .TP 0.5i .B , Cycle the graticule style: none, minor divisions only, or minor and major divisions. .TP 0.5i .B . Toggle the graticule position: behind or in front of the signals. .TP 0.5i .B ' Toggle the manual cursors on/off. When manual cursors are displayed, the measurements between the cursor positions are shown. When cursors are not displayed, automatic measurements are shown. .TP 0.5i .B """ Reset both manual cursor positions to the sample just after trigger. .\" " .TP 0.5i .B Ctrl-q/w/e/r The Control key held down in combination with q/w/e/r moves the first cursor back or forward by 10 samples or back or forward by 1 sample respectively. .TP 0.5i .B Ctrl-a/s/d/f The Control key held down in combination with a/s/d/f moves the second cursor back or forward by 10 samples or back or forward by 1 sample respectively. .TP 0.5i .B 1\-8 Select the corresponding display channel. Measurements are displayed for the channel. Channel 1 and 2 are used as input to the math functions so they can't be used to do math. By default, they are connected to the A and B input channels. Channel 1 and 2 can also be used to display memory buffers or for doing math on memory or the alternate input. Channel 3 through 8 are not restricted and can be used for any purpose. The remaining single key commands operate on the currently selected channel: .TP 0.5i .B Tab Toggle visibility: Hide or show the selected channel. .TP 0.5i .B {/} Decrease/Increase vertical scale of the selected channel. .TP 0.5i .B [/] Decrease/Increase vertical position of the selected channel. .TP 0.5i .B `/~ Decrease/Increase number of logic analyzer bits displayed. The default of zero bits plots the signal as one analog line of varying amplitude. Any other value plots multiple digital lines representing the least significant bits from bottom to top. .TP 0.5i .B ;/: Increase/Decrease the math function of the selected channel. This is not available on channel 1 & 2. .TP 0.5i .B $ Show the result of an external math command on the selected channel. You are prompted for the command. The command must accept samples of channel 1 & 2 on stdin and write a new signal to stdout. See operl, offt.c and xy.c in the distribution for examples of external math filter commands. Not available on channel 1 & 2. .TP 0.5i .B a-z Recall the corresponding memory buffer or input device to the currently selected channel. Input device channels are mapped to the earliest letters of the alphabet; the rest of the buffers are available for signal memory. .TP 0.5i .B A-Z Store the currently selected channel into the corresponding memory buffer. Early letters of the alphabet can not be used because they're reserved as the signal inputs, so the exact number of available buffers is dependant on the input device. Memories are stored from time zero to the current display update position. So it is best to STOP the display before storing to a memory buffer. .PP .SH "MOUSE CONTROLS" .B Xoscope adds mouse controls to menus or around the edges of the scope area. These should be nearly self-explanatory. They perform the same functions as the equivalent keyboard commands above. If built with GTK+, a context-sensitive pop-up menu is available with right-click to select channels, change scale and position, recall and store signals and so on. Left click decreases a variable while right click increases. The manual measurement cursors can also be positioned with the mouse. .PP .SH "COMMAND\-LINE OPTIONS" The command-line options define the startup state of .B xoscope and have reasonable defaults. All options may be capitalized in case they conflict with an X toolkit option. These options are also recorded in text files saved by .B xoscope. .TP 0.5i .B -h Help usage message showing these startup options with their default values, then exit. .TP 0.5i .B -# Startup conditions of each channel. # is a channel number from 1 to 8. Code can have up to three fields, separated by colons: position[.bits][:scale[:function #, memory letter, or external command]]. Position is the number of pixels above (positive) or below (negative) the center of the display. Bits is the number of logic analyzer bits to display. Scale is a valid scaling factor from 1/50 to 50, expressed as a fraction. The third field may contain a built-in math function number, memory letter, or external math command to run on the channel. Using these options makes the channel visible unless position begins with a '+', in which case the channel is hidden. .TP 0.5i .B -a Active, or selected, channel. .TP 0.5i .B -r Sampling Rate in samples per second. For the sound card, current valid values are 8000, 11025, 22050, or 44100. .TP 0.5i .B -s Time Scale factor from 1/500000 to 2000 (2 ns/div - 2 s/div) expressed as a fraction where 1/1 is 1 ms/div. .TP 0.5i .B -t Trigger conditions. Trigger can have up to three fields, separated by colons: position[:type[:channel]]. Position is the number of pixels above (positive) or below (negative) the center of the display. Type is a number indicating the kind of trigger, 0 = automatic, 1 = rising edge, 2 = falling edge. Channel should be x or y. .TP 0.5i .B -l Manual cursor Line positions. Cursors can have up to three fields, separated by colons: first[:second[:on?]]. First is the sample position of the first cursor. Second is the sample position of the second cursor. The final field is weather the manual cursors are displayed (1) or the not displayed (0). .TP 0.5i .B -p Plot type. 0 = point, 1 = point accumulate, 2 = line, 3 = line accumulate, 4 = step, 5 = step accumulate. .TP 0.5i .B -g