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authorIOhannes m zmölnig <zmoelnig@users.sourceforge.net>2005-11-03 11:42:02 +0000
committerIOhannes m zmölnig <zmoelnig@users.sourceforge.net>2005-11-03 11:42:02 +0000
commitaa093b46fe2a7192f0e212c147a35e7f8ec64512 (patch)
treeea72d8329a7493aa003ee3525c3ce11746f487c9
an external to control your alsa-soundcard (simple things like controlling the mixer (if your card has one, but also others like SyncMaster,...)svn2git-root
this is a port of Kysela's "amixer" command-line tool svn path=/trunk/externals/iem/amixer/; revision=3826
-rw-r--r--GnuGPL.txt340
-rw-r--r--LICENSE.txt21
-rw-r--r--Makefile.in84
-rw-r--r--amixer.c743
-rw-r--r--configure.ac224
5 files changed, 1412 insertions, 0 deletions
diff --git a/GnuGPL.txt b/GnuGPL.txt
new file mode 100644
index 0000000..d60c31a
--- /dev/null
+++ b/GnuGPL.txt
@@ -0,0 +1,340 @@
+ GNU GENERAL PUBLIC LICENSE
+ Version 2, June 1991
+
+ Copyright (C) 1989, 1991 Free Software Foundation, Inc.
+ 59 Temple Place, Suite 330, Boston, MA 02111-1307 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
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+
+ When we speak of free software, we are referring to freedom, not
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+ GNU GENERAL PUBLIC LICENSE
+ TERMS AND CONDITIONS FOR COPYING, DISTRIBUTION AND MODIFICATION
+
+ 0. This License applies to any program or other work which contains
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+
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+
+ 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.
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+ To do so, attach the following notices to the program. It is safest
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+ Copyright (C) <year> <name of author>
+
+ 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.
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+ 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.
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+ This is free software, and you are welcome to redistribute it
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+
+ <signature of Ty Coon>, 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.
diff --git a/LICENSE.txt b/LICENSE.txt
new file mode 100644
index 0000000..fc267a0
--- /dev/null
+++ b/LICENSE.txt
@@ -0,0 +1,21 @@
+amixer - allows control of the mixer (controls) for the ALSA soundcard driver
+
+Copyright (C) 2005 IOhannes m zmoelnig (zmoelnig AT iem DOT at)
+
+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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+
+In the official flext distribution, the GNU General Public License is
+in the file GnuGPL.txt
+
diff --git a/Makefile.in b/Makefile.in
new file mode 100644
index 0000000..7bd4bbc
--- /dev/null
+++ b/Makefile.in
@@ -0,0 +1,84 @@
+LIBNAME =@LIBNAME@
+
+PREFIX =@prefix@@PDLIBDIR@
+
+INSTALL_BIN=$(PREFIX)/extra
+INSTALL_DOC=$(PREFIX)/@REFERENCEPATH@$(LIBNAME)
+
+EXT = @EXT@
+DEFS = @DFLAGS@ -DACONNECT_VERSION=\"@VERSION@\"
+IFLAGS = -I. @INCLUDES@ $(INCLUDES)
+
+CC = @CC@
+LD = @LD@
+STRIP = @STRIP@ @STRIPFLAGS@
+
+AFLAGS =
+LFLAGS = @LFLAGS@
+WFLAGS =
+
+MAKEDEP_FLAGS = @MAKEDEP_FLAGS@
+
+TARNAME = $(LIBNAME)-@VERSION@.tgz
+BINTARNAME = $(LIBNAME)-@VERSION@-bin.tgz
+
+.SUFFIXES: .$(EXT)
+
+CFLAGS = $(DEFS) $(IFLAGS) $(WFLAGS) @CFLAGS@
+
+LIBS = @LIBS@
+
+SOURCES=$(sort $(filter %.c, $(wildcard *.c)))
+TARGETS = $(SOURCES:.c=.o)
+
+
+all: $(LIBNAME)
+
+clean:
+ -rm -f *.o *.d
+
+binclean:
+ -rm -f *.$(EXT)
+
+distclean: clean binclean
+ -rm -f *~ _* config.*
+ -rm -rf autom4te.cache
+
+install: install-bin install-doc
+
+install-bin:
+ -install -d $(INSTALL_BIN)
+ -install -m 644 $(LIBNAME).$(EXT) $(INSTALL_BIN)
+
+install-doc:
+ -install -d $(INSTALL_DOC)
+ -install -m 644 ../doc/*.pd $(INSTALL_DOC)
+
+dist: distclean
+ (cd ..;tar czvf $(TARNAME) $(LIBNAME))
+
+distbin: distclean all clean
+ (cd ..; tar cvzf $(BINTARNAME) $(LIBNAME))
+
+everything: clean all install distclean
+
+
+$(LIBNAME): $(TARGETS)
+ $(LD) $(LFLAGS) -o $(LIBNAME).$(EXT) *.o $(LIBS)
+ $(STRIP) $(LIBNAME).$(EXT)
+
+
+## dependencies: as proposed by the GNU-make documentation
+## see http://www.gnu.org/software/make/manual/html_node/make_47.html#SEC51
+-include $(SOURCES:.c=.d)
+%.d: %.c
+ @set -e; rm -f $@; \
+ $(CC) $(MAKEDEP_FLAGS) $(CFLAGS) $< > $@.$$$$; \
+ sed 's,\($*\)\.o[ :]*,\1.o $@ : ,g' < $@.$$$$ > $@; \
+ rm -f $@.$$$$
+
+configure: configure.ac
+ autoconf
+
+Makefile: Makefile.in configure
+ ./configure
diff --git a/amixer.c b/amixer.c
new file mode 100644
index 0000000..b159664
--- /dev/null
+++ b/amixer.c
@@ -0,0 +1,743 @@
+/******************************************************
+ *
+ * amixer - ALSA sequencer connection manager
+ * Copyright (C) 1999-2000 Jaroslav Kysela
+ *
+ *
+ *
+ * ported from alsa-1.0.9a to pd by:
+ * copyleft (c) 2005 IOhannes m zmlnig
+ *
+ * forum::fr::umlute
+ *
+ * institute of electronic music and acoustics (iem)
+ *
+ *
+ ******************************************************
+ *
+ * license: GNU General Public License v.2
+ *
+ ******************************************************/
+#include "m_pd.h"
+
+/* amixer :: allows control of the mixer (controls) for the ALSA soundcard driver */
+
+#ifdef HAVE_ALSA
+# include <stdio.h>
+# include <stdlib.h>
+# include <string.h>
+# include <getopt.h>
+# include <stdarg.h>
+# include <ctype.h>
+# include <math.h>
+# include <errno.h>
+# include <assert.h>
+# include <alsa/asoundlib.h>
+# include <sys/poll.h>
+
+#define LEVEL_BASIC (1<<0)
+#define LEVEL_INACTIVE (1<<1)
+#define LEVEL_ID (1<<2)
+
+#endif /* ALSA */
+
+
+static t_class *amixer_class;
+
+typedef struct _amixer
+{
+ t_object x_obj;
+ t_outlet*x_error;
+
+ char card[64];
+} t_amixer;
+
+
+#ifdef HAVE_ALSA
+
+static const char *control_iface(snd_ctl_elem_id_t *id)
+{
+ return snd_ctl_elem_iface_name(snd_ctl_elem_id_get_interface(id));
+}
+
+static const char *control_type(snd_ctl_elem_info_t *info)
+{
+ return snd_ctl_elem_type_name(snd_ctl_elem_info_get_type(info));
+}
+
+static const char *control_access(snd_ctl_elem_info_t *info)
+{
+ static char result[10];
+ char *res = result;
+
+ *res++ = snd_ctl_elem_info_is_readable(info) ? 'r' : '-';
+ *res++ = snd_ctl_elem_info_is_writable(info) ? 'w' : '-';
+ *res++ = snd_ctl_elem_info_is_inactive(info) ? 'i' : '-';
+ *res++ = snd_ctl_elem_info_is_volatile(info) ? 'v' : '-';
+ *res++ = snd_ctl_elem_info_is_locked(info) ? 'l' : '-';
+ *res++ = '\0';
+ return result;
+}
+
+
+static int check_range(int val, int min, int max)
+{
+ if (val < min)
+ return min;
+ if (val > max)
+ return max;
+ return val;
+}
+
+#if 0
+static int convert_range(int val, int omin, int omax, int nmin, int nmax)
+{
+ int orange = omax - omin, nrange = nmax - nmin;
+
+ if (orange == 0)
+ return 0;
+ return rint((((double)nrange * ((double)val - (double)omin)) + ((double)orange / 2.0)) / ((double)orange + (double)nmin));
+}
+#endif
+
+#if 0
+static int convert_db_range(int val, int omin, int omax, int nmin, int nmax)
+{
+ int orange = omax - omin, nrange = nmax - nmin;
+
+ if (orange == 0)
+ return 0;
+ return rint((((double)nrange * ((double)val - (double)omin)) + ((double)orange / 2.0)) / (double)orange + (double)nmin);
+}
+#endif
+
+/* Fuction to convert from volume to percentage. val = volume */
+
+static int convert_prange(int val, int min, int max)
+{
+ int range = max - min;
+ int tmp;
+
+ if (range == 0)
+ return 0;
+ val -= min;
+ tmp = rint((double)val/(double)range * 100);
+ return tmp;
+}
+
+/* Function to convert from percentage to volume. val = percentage */
+
+static int convert_prange1(int val, int min, int max)
+{
+ int range = max - min;
+ int tmp;
+
+ if (range == 0)
+ return 0;
+
+ tmp = rint((double)range * ((double)val*.01)) + min;
+ return tmp;
+}
+
+static const char *get_percent(int val, int min, int max)
+{
+ static char str[32];
+ int p;
+
+ p = convert_prange(val, min, max);
+ sprintf(str, "%i [%i%%]", val, p);
+ return str;
+}
+
+#if 0
+static const char *get_percent1(int val, int min, int max, int min_dB, int max_dB)
+{
+ static char str[32];
+ int p, db;
+
+ p = convert_prange(val, min, max);
+ db = convert_db_range(val, min, max, min_dB, max_dB);
+ sprintf(str, "%i [%i%%] [%i.%02idB]", val, p, db / 100, abs(db % 100));
+ return str;
+}
+#endif
+
+static long get_integer(char **ptr, long min, long max)
+{
+ int tmp, tmp1, tmp2;
+
+ if (**ptr == ':')
+ (*ptr)++;
+ if (**ptr == '\0' || (!isdigit(**ptr) && **ptr != '-'))
+ return min;
+ tmp = strtol(*ptr, ptr, 10);
+ tmp1 = tmp;
+ tmp2 = 0;
+ if (**ptr == '.') {
+ (*ptr)++;
+ tmp2 = strtol(*ptr, ptr, 10);
+ }
+ if (**ptr == '%') {
+ tmp1 = convert_prange1(tmp, min, max);
+ (*ptr)++;
+ }
+ tmp1 = check_range(tmp1, min, max);
+ if (**ptr == ',')
+ (*ptr)++;
+ return tmp1;
+}
+
+static long get_integer64(char **ptr, long long min, long long max)
+{
+ long long tmp, tmp1, tmp2;
+
+ if (**ptr == ':')
+ (*ptr)++;
+ if (**ptr == '\0' || (!isdigit(**ptr) && **ptr != '-'))
+ return min;
+ tmp = strtol(*ptr, ptr, 10);
+ tmp1 = tmp;
+ tmp2 = 0;
+ if (**ptr == '.') {
+ (*ptr)++;
+ tmp2 = strtol(*ptr, ptr, 10);
+ }
+ if (**ptr == '%') {
+ tmp1 = convert_prange1(tmp, min, max);
+ (*ptr)++;
+ }
+ tmp1 = check_range(tmp1, min, max);
+ if (**ptr == ',')
+ (*ptr)++;
+ return tmp1;
+}
+
+static int get_volume_simple(char **ptr, int min, int max, int orig)
+{
+ int tmp, tmp1, tmp2;
+
+ if (**ptr == ':')
+ (*ptr)++;
+ if (**ptr == '\0' || (!isdigit(**ptr) && **ptr != '-'))
+ return min;
+ tmp = atoi(*ptr);
+ if (**ptr == '-')
+ (*ptr)++;
+ while (isdigit(**ptr))
+ (*ptr)++;
+ tmp1 = tmp;
+ tmp2 = 0;
+ if (**ptr == '.') {
+ (*ptr)++;
+ tmp2 = atoi(*ptr);
+ while (isdigit(**ptr))
+ (*ptr)++;
+ }
+ if (**ptr == '%') {
+ tmp1 = convert_prange1(tmp, min, max);
+ (*ptr)++;
+ }
+ if (**ptr == '+') {
+ tmp1 = orig + tmp1;
+ (*ptr)++;
+ } else if (**ptr == '-') {
+ tmp1 = orig - tmp1;
+ (*ptr)++;
+ }
+ tmp1 = check_range(tmp1, min, max);
+ if (**ptr == ',')
+ (*ptr)++;
+ return tmp1;
+}
+
+static int get_bool_simple(char **ptr, char *str, int invert, int orig)
+{
+ if (**ptr == ':')
+ (*ptr)++;
+ if (!strncasecmp(*ptr, str, strlen(str))) {
+ orig = 1 ^ (invert ? 1 : 0);
+ while (**ptr != '\0' && **ptr != ',' && **ptr != ':')
+ (*ptr)++;
+ }
+ if (**ptr == ',' || **ptr == ':')
+ (*ptr)++;
+ return orig;
+}
+
+static int parse_control_id(const char *str, snd_ctl_elem_id_t *id)
+{
+ int c, size;
+ char *ptr;
+
+ while (*str == ' ' || *str == '\t')
+ str++;
+ if (!(*str))
+ return -EINVAL;
+ snd_ctl_elem_id_set_interface(id, SND_CTL_ELEM_IFACE_MIXER); /* default */
+ while (*str) {
+ if (!strncasecmp(str, "numid=", 6)) {
+ str += 6;
+ snd_ctl_elem_id_set_numid(id, atoi(str));
+ while (isdigit(*str))
+ str++;
+ } else if (!strncasecmp(str, "iface=", 6)) {
+ str += 6;
+ if (!strncasecmp(str, "card", 4)) {
+ snd_ctl_elem_id_set_interface(id, SND_CTL_ELEM_IFACE_CARD);
+ str += 4;
+ } else if (!strncasecmp(str, "mixer", 5)) {
+ snd_ctl_elem_id_set_interface(id, SND_CTL_ELEM_IFACE_MIXER);
+ str += 5;
+ } else if (!strncasecmp(str, "pcm", 3)) {
+ snd_ctl_elem_id_set_interface(id, SND_CTL_ELEM_IFACE_PCM);
+ str += 3;
+ } else if (!strncasecmp(str, "rawmidi", 7)) {
+ snd_ctl_elem_id_set_interface(id, SND_CTL_ELEM_IFACE_RAWMIDI);
+ str += 7;
+ } else if (!strncasecmp(str, "timer", 5)) {
+ snd_ctl_elem_id_set_interface(id, SND_CTL_ELEM_IFACE_TIMER);
+ str += 5;
+ } else if (!strncasecmp(str, "sequencer", 9)) {
+ snd_ctl_elem_id_set_interface(id, SND_CTL_ELEM_IFACE_SEQUENCER);
+ str += 9;
+ } else {
+ return -EINVAL;
+ }
+ } else if (!strncasecmp(str, "name=", 5)) {
+ char buf[64];
+ str += 5;
+ ptr = buf;
+ size = 0;
+ if (*str == '\'' || *str == '\"') {
+ c = *str++;
+ while (*str && *str != c) {
+ if (size < (int)sizeof(buf)) {
+ *ptr++ = *str;
+ size++;
+ }
+ str++;
+ }
+ if (*str == c)
+ str++;
+ } else {
+ while (*str && *str != ',') {
+ if (size < (int)sizeof(buf)) {
+ *ptr++ = *str;
+ size++;
+ }
+ str++;
+ }
+ *ptr = '\0';
+ }
+ snd_ctl_elem_id_set_name(id, buf);
+ } else if (!strncasecmp(str, "index=", 6)) {
+ str += 6;
+ snd_ctl_elem_id_set_index(id, atoi(str));
+ while (isdigit(*str))
+ str++;
+ } else if (!strncasecmp(str, "device=", 7)) {
+ str += 7;
+ snd_ctl_elem_id_set_device(id, atoi(str));
+ while (isdigit(*str))
+ str++;
+ } else if (!strncasecmp(str, "subdevice=", 10)) {
+ str += 10;
+ snd_ctl_elem_id_set_subdevice(id, atoi(str));
+ while (isdigit(*str))
+ str++;
+ }
+ if (*str == ',') {
+ str++;
+ } else {
+ if (*str)
+ return -EINVAL;
+ }
+ }
+ return 0;
+}
+
+static int parse_simple_id(const char *str, snd_mixer_selem_id_t *sid)
+{
+ int c, size;
+ char buf[128];
+ char *ptr = buf;
+
+ while (*str == ' ' || *str == '\t')
+ str++;
+ if (!(*str))
+ return -EINVAL;
+ size = 1; /* for '\0' */
+ if (*str != '"' && *str != '\'') {
+ while (*str && *str != ',') {
+ if (size < (int)sizeof(buf)) {
+ *ptr++ = *str;
+ size++;
+ }
+ str++;
+ }
+ } else {
+ c = *str++;
+ while (*str && *str != c) {
+ if (size < (int)sizeof(buf)) {
+ *ptr++ = *str;
+ size++;
+ }
+ str++;
+ }
+ if (*str == c)
+ str++;
+ }
+ if (*str == '\0') {
+ snd_mixer_selem_id_set_index(sid, 0);
+ *ptr = 0;
+ goto _set;
+ }
+ if (*str != ',')
+ return -EINVAL;
+ *ptr = 0; /* terminate the string */
+ str++;
+ if (!isdigit(*str))
+ return -EINVAL;
+ snd_mixer_selem_id_set_index(sid, atoi(str));
+ _set:
+ snd_mixer_selem_id_set_name(sid, buf);
+ return 0;
+}
+static void show_control_id(snd_ctl_elem_id_t *id)
+{
+ unsigned int index, device, subdevice;
+ printf("numid=%u,iface=%s,name='%s'",
+ snd_ctl_elem_id_get_numid(id),
+ control_iface(id),
+ snd_ctl_elem_id_get_name(id));
+ index = snd_ctl_elem_id_get_index(id);
+ device = snd_ctl_elem_id_get_device(id);
+ subdevice = snd_ctl_elem_id_get_subdevice(id);
+ if (index)
+ printf(",index=%i", index);
+ if (device)
+ printf(",device=%i", device);
+ if (subdevice)
+ printf(",subdevice=%i", subdevice);
+}
+
+static int show_control(const char* card, const char *space, snd_hctl_elem_t *elem,
+ int level)
+{
+ int err;
+ unsigned int item, idx;
+ unsigned int count;
+ snd_ctl_elem_type_t type;
+ snd_ctl_elem_id_t *id;
+ snd_ctl_elem_info_t *info;
+ snd_ctl_elem_value_t *control;
+ snd_ctl_elem_id_alloca(&id);
+ snd_ctl_elem_info_alloca(&info);
+ snd_ctl_elem_value_alloca(&control);
+ if ((err = snd_hctl_elem_info(elem, info)) < 0) {
+ error("Control %s snd_hctl_elem_info error: %s\n", card, snd_strerror(err));
+ return err;
+ }
+ if (level & LEVEL_ID) {
+ snd_hctl_elem_get_id(elem, id);
+ show_control_id(id);
+ printf("\n");
+ }
+ count = snd_ctl_elem_info_get_count(info);
+ type = snd_ctl_elem_info_get_type(info);
+ printf("%s; type=%s,access=%s,values=%i", space, control_type(info), control_access(info), count);
+ switch (type) {
+ case SND_CTL_ELEM_TYPE_INTEGER:
+ printf(",min=%li,max=%li,step=%li\n",
+ snd_ctl_elem_info_get_min(info),
+ snd_ctl_elem_info_get_max(info),
+ snd_ctl_elem_info_get_step(info));
+ break;
+ case SND_CTL_ELEM_TYPE_INTEGER64:
+ printf(",min=%Li,max=%Li,step=%Li\n",
+ snd_ctl_elem_info_get_min64(info),
+ snd_ctl_elem_info_get_max64(info),
+ snd_ctl_elem_info_get_step64(info));
+ break;
+ case SND_CTL_ELEM_TYPE_ENUMERATED:
+ {
+ unsigned int items = snd_ctl_elem_info_get_items(info);
+ printf(",items=%u\n", items);
+ for (item = 0; item < items; item++) {
+ snd_ctl_elem_info_set_item(info, item);
+ if ((err = snd_hctl_elem_info(elem, info)) < 0) {
+ error("Control %s element info error: %s\n", card, snd_strerror(err));
+ return err;
+ }
+ printf("%s; Item #%u '%s'\n", space, item, snd_ctl_elem_info_get_item_name(info));
+ }
+ break;
+ }
+ default:
+ printf("\n");
+ break;
+ }
+ if (level & LEVEL_BASIC) {
+ if ((err = snd_hctl_elem_read(elem, control)) < 0) {
+ error("Control %s element read error: %s\n", card, snd_strerror(err));
+ return err;
+ }
+ printf("%s: values=", space);
+ for (idx = 0; idx < count; idx++) {
+ if (idx > 0)
+ printf(",");
+ switch (type) {
+ case SND_CTL_ELEM_TYPE_BOOLEAN:
+ printf("%s", snd_ctl_elem_value_get_boolean(control, idx) ? "on" : "off");
+ break;
+ case SND_CTL_ELEM_TYPE_INTEGER:
+ printf("%li", snd_ctl_elem_value_get_integer(control, idx));
+ break;
+ case SND_CTL_ELEM_TYPE_INTEGER64:
+ printf("%Li", snd_ctl_elem_value_get_integer64(control, idx));
+ break;
+ case SND_CTL_ELEM_TYPE_ENUMERATED:
+ printf("%u", snd_ctl_elem_value_get_enumerated(control, idx));
+ break;
+ case SND_CTL_ELEM_TYPE_BYTES:
+ printf("0x%02x", snd_ctl_elem_value_get_byte(control, idx));
+ break;
+ default:
+ printf("?");
+ break;
+ }
+ }
+ printf("\n");
+ }
+ return 0;
+}
+
+
+
+static void amixer_bang(t_amixer *x)
+{
+
+
+
+}
+static int amixer_control(t_amixer *x, int argc, t_atom *argv, int roflag)
+{
+ int err;
+ snd_ctl_t *handle;
+ snd_ctl_elem_info_t *info;
+ snd_ctl_elem_id_t *id;
+ snd_ctl_elem_value_t *control;
+ char *ptr;
+ unsigned int idx, count;
+ long tmp;
+ snd_ctl_elem_type_t type;
+ snd_ctl_elem_info_alloca(&info);
+ snd_ctl_elem_id_alloca(&id);
+ snd_ctl_elem_value_alloca(&control);
+
+ if (argc < 1) {
+ error("Specify a full control identifier: [[iface=<iface>,][name='name',][index=<index>,][device=<device>,][subdevice=<subdevice>]]|[numid=<numid>]\n");
+ return -EINVAL;
+ }
+ if(A_FLOAT==argv->a_type){
+ snd_ctl_elem_id_set_numid(id, atom_getint(argv));
+ if(0)
+ {
+ error("Wrong control identifier: %d\n", atom_getint(argv));
+ return -EINVAL;
+ }
+ } else {
+ if (parse_control_id(atom_getsymbol(argv)->s_name, id)) {
+ error("Wrong control identifier: %s\n", atom_getsymbol(argv)->s_name);
+ return -EINVAL;
+ }
+ }
+ if ((err = snd_ctl_open(&handle, x->card, 0)) < 0) {
+ error("Control %s open error: %s\n", x->card, snd_strerror(err));
+ return err;
+ }
+ snd_ctl_elem_info_set_id(info, id);
+ if ((err = snd_ctl_elem_info(handle, info)) < 0) {
+ error("Control %s cinfo error: %s\n", x->card, snd_strerror(err));
+ return err;
+ }
+
+ snd_ctl_elem_info_get_id(info, id); /* FIXME: Remove it when hctl find works ok !!! */
+ type = snd_ctl_elem_info_get_type(info);
+ count = snd_ctl_elem_info_get_count(info);
+ snd_ctl_elem_value_set_id(control, id);
+
+ if (!roflag) {
+ t_float atom_float = atom_getfloat(argv+1);
+ int atom_isfloat = (A_FLOAT==(argv+1)->a_type);
+ post("now setting");
+ ptr = atom_getsymbol(argv+1)->s_name;
+ for (idx = 0; idx < count && idx < 128 && ptr && *ptr; idx++) {
+ switch (type) {
+ case SND_CTL_ELEM_TYPE_BOOLEAN:
+ tmp = 0;
+ if(atom_isfloat){
+ tmp=(atom_float>0)?1:0;
+ } else if (!strncasecmp(ptr, "on", 2) || !strncasecmp(ptr, "up", 2)) {
+ tmp = 1;
+ ptr += 2;
+ } else if (!strncasecmp(ptr, "yes", 3)) {
+ tmp = 1;
+ ptr += 3;
+ } else if (!strncasecmp(ptr, "toggle", 6)) {
+ tmp = snd_ctl_elem_value_get_boolean(control, idx);
+ tmp = tmp > 0 ? 0 : 1;
+ ptr += 6;
+ } else if (isdigit(*ptr)) {
+ tmp = atoi(ptr) > 0 ? 1 : 0;
+ while (isdigit(*ptr))
+ ptr++;
+ } else {
+ while (*ptr && *ptr != ',')
+ ptr++;
+ }
+ snd_ctl_elem_value_set_boolean(control, idx, tmp);
+ break;
+ case SND_CTL_ELEM_TYPE_INTEGER:
+ tmp = atom_isfloat?((int)atom_float):get_integer(&ptr,
+ snd_ctl_elem_info_get_min(info),
+ snd_ctl_elem_info_get_max(info));
+ snd_ctl_elem_value_set_integer(control, idx, tmp);
+ break;
+ case SND_CTL_ELEM_TYPE_INTEGER64:
+ tmp = atom_isfloat?((int)atom_float):get_integer64(&ptr,
+ snd_ctl_elem_info_get_min64(info),
+ snd_ctl_elem_info_get_max64(info));
+ snd_ctl_elem_value_set_integer64(control, idx, tmp);
+ break;
+ case SND_CTL_ELEM_TYPE_ENUMERATED:
+ tmp = atom_isfloat?((int)atom_float):get_integer(&ptr, 0, snd_ctl_elem_info_get_items(info) - 1);
+ snd_ctl_elem_value_set_enumerated(control, idx, tmp);
+ break;
+ case SND_CTL_ELEM_TYPE_BYTES:
+ tmp = atom_isfloat?((int)atom_float):get_integer(&ptr, 0, 255);
+ snd_ctl_elem_value_set_byte(control, idx, tmp);
+ break;
+ default:
+ break;
+ }
+ if (!strchr(atom_getsymbol(argv+1)->s_name, ','))
+ ptr = atom_getsymbol(argv+1)->s_name;
+ else if (*ptr == ',')
+ ptr++;
+ }
+ if ((err = snd_ctl_elem_write(handle, control)) < 0) {
+ error("Control %s element write error: %s\n", x->card, snd_strerror(err));
+ return err;
+ }
+ }
+ snd_ctl_close(handle);
+
+
+ if (1) {
+ snd_hctl_t *hctl;
+ snd_hctl_elem_t *elem;
+ if ((err = snd_hctl_open(&hctl, x->card, 0)) < 0) {
+ error("Control %s open error: %s\n", x->card, snd_strerror(err));
+ return err;
+ }
+ if ((err = snd_hctl_load(hctl)) < 0) {
+ error("Control %s load error: %s\n", x->card, snd_strerror(err));
+ return err;
+ }
+ elem = snd_hctl_find_elem(hctl, id);
+ if (elem)
+ show_control(x->card, " ", elem, LEVEL_BASIC | LEVEL_ID);
+ else
+ printf("Could not find the specified element\n");
+ snd_hctl_close(hctl);
+ }
+}
+static void amixer_cget(t_amixer *x, t_symbol *s, int argc, t_atom *argv)
+{
+ amixer_control(x, argc, argv, 1);
+}
+static void amixer_cset(t_amixer *x, t_symbol *s, int argc, t_atom *argv)
+{
+ amixer_control(x, argc, argv, 0);
+}
+
+static void amixer_sget(t_amixer *x, t_symbol *s, int argc, t_atom *argv)
+{
+}
+static void amixer_sset(t_amixer *x, t_symbol *s, int argc, t_atom *argv)
+{
+}
+static void amixer_card(t_amixer *x, t_symbol *s, int argc, t_atom *argv)
+{
+ if(1==argc){
+ int id=-1;
+ if(A_FLOAT==argv->a_type)id=atom_getint(argv);
+ else id=snd_card_get_index(atom_getsymbol(argv)->s_name);
+ if (id >= 0 && id < 32)
+ sprintf(x->card, "hw:%i", id);
+ else {
+ pd_error(x, "invalid card %d", id);
+ return;
+ }
+
+
+ } else error("amixer: can only be integer of symbol");
+}
+
+#endif /* ALSA */
+
+static void amixer_free(t_amixer *x){
+#ifdef HAVE_ALSA
+
+
+#endif /* ALSA */
+}
+
+
+static void *amixer_new(void)
+{
+ t_amixer *x = (t_amixer *)pd_new(amixer_class);
+ outlet_new(&x->x_obj, 0);
+ x->x_error=outlet_new(&x->x_obj, 0);
+
+#ifndef HAVE_ALSA
+ error("amixer: compiled without ALSA-suppor !!");
+ error("amixer: no functionality enabled!");
+#else
+ sprintf(x->card, "default");
+
+#endif /* !ALSA */
+
+ return (x);
+}
+
+
+void amixer_setup(void)
+{
+ post("amixer: ALSA soundcard control");
+ post(" Copyright (C) 1999-2000 Jaroslav Kysela");
+ post(" ported to pure-data by IOhannes m zmlnig 2005");
+ post(" institute of electronic music and acoustics (iem)");
+ post(" published under the GNU General Public License version 2");
+#ifdef AMIXER_VERSION
+ startpost(" version:"AMIXER_VERSION);
+#endif
+ post("\tcompiled: "__DATE__"");
+
+ amixer_class = class_new(gensym("amixer"), (t_newmethod)amixer_new, (t_method)amixer_free,
+ sizeof(t_amixer), 0, 0);
+#ifdef HAVE_ALSA
+ class_addmethod(amixer_class, (t_method)amixer_card,gensym("card"), A_GIMME, 0);
+ class_addmethod(amixer_class, (t_method)amixer_cget,gensym("get"), A_GIMME, 0);
+ class_addmethod(amixer_class, (t_method)amixer_cset,gensym("set"), A_GIMME, 0);
+ class_addmethod(amixer_class, (t_method)amixer_cget,gensym("cget"), A_GIMME, 0);
+ class_addmethod(amixer_class, (t_method)amixer_cset,gensym("cset"), A_GIMME, 0);
+ class_addmethod(amixer_class, (t_method)amixer_sget,gensym("sget"), A_GIMME, 0);
+ class_addmethod(amixer_class, (t_method)amixer_sset,gensym("sset"), A_GIMME, 0);
+
+ // class_addmethod(amixer_class, (t_method)amixer_listdevices,gensym(""), A_DEFSYM, 0);
+ class_addbang(amixer_class, (t_method)amixer_bang);
+#endif /* ALSA */
+}
+
diff --git a/configure.ac b/configure.ac
new file mode 100644
index 0000000..b36f568
--- /dev/null
+++ b/configure.ac
@@ -0,0 +1,224 @@
+dnl Process this file with autoconf to produce a configure script.
+AC_INIT(amixer.c)
+
+VERSION=0.0.1
+LIBNAME=amixer
+
+dnl Checks for programs.
+AC_PROG_CC
+
+AC_SUBST(STK)
+AC_SUBST(DFLAGS)
+AC_SUBST(LFLAGS)
+AC_SUBST(EXT)
+AC_SUBST(LD)
+AC_SUBST(STRIP)
+AC_SUBST(STRIPFLAGS)
+AC_SUBST(REFERENCEPATH)
+AC_SUBST(PDLIBDIR)
+AC_SUBST(INCLUDES)
+AC_SUBST(VERSION)
+AC_SUBST(LIBNAME)
+
+
+AC_ARG_WITH(pdversion, [ --with-pdversion=<ver> enforce a certain pd-version (e.g. 0.37)])
+AC_ARG_WITH(extension, [ --with-extension=<ext> enforce a certain extension for the dynamic library (e.g. dll)])
+
+
+dnl Checks for libraries.
+dnl Replace `main' with a function in -lc:
+AC_CHECK_LIB(c, main)
+AC_CHECK_LIB(crtdll, fclose)
+
+dnl Replace `main' with a function in -lm:
+AC_CHECK_LIB(m, main)
+dnl Replace `main' with a function in -lpthread:
+dnl AC_CHECK_LIB(pthread, main)
+dnl Replace `main' with a function in -lstk:
+dnl AC_CHECK_LIB(stk, main, STK=yes)
+
+
+AC_CHECK_LIB(asound, snd_seq_close)
+if test "x$ac_cv_lib_asound_snd_seq_close" = "xyes"; then
+ DFLAGS="-DHAVE_ALSA ${DFLAGS}"
+fi
+
+if test "x$includedir" != "x"; then
+ for id in $includedir
+ do
+ if test -d $id; then INCLUDES="-I$id $INCLUDES"; fi
+ done
+fi
+if test "x$libdir" != "x"; then
+ for id in $libdir
+ do
+ if test -d $id; then LIBS="-L$id $LIBS"; fi
+ done
+fi
+
+AC_CHECK_LIB(pd, nullfn)
+
+dnl Checks for header files.
+AC_HEADER_STDC
+AC_CHECK_HEADERS(stdlib.h stdio.h string.h math.h time.h sys/time.h)
+
+dnl Checks for typedefs, structures, and compiler characteristics.
+AC_HEADER_TIME
+
+dnl Checks for library functions.
+AC_FUNC_MMAP
+AC_CHECK_FUNCS(select socket strerror)
+
+dnl check for "-mms-bitfields" cflag
+dnl why is there no generic compiler-check for a given flag ?
+dnl it would make things so easy: AC_CHECK_FLAG([-mms-bitfields],,)
+AC_MSG_CHECKING("ms-bitfields")
+cat > conftest.c << EOF
+int main(){
+ return 0;
+}
+EOF
+if ${CC} ${INCLUDES} ${DFLAGS} -o conftest.o conftest.c ${CFLAGS} -mms-bitfields > /dev/null 2>&1
+then
+ echo "yes"
+ CFLAGS="${CFLAGS} -mms-bitfields"
+else
+ echo "no"
+fi
+
+
+### make-depend flags
+if test "x$ac_cv_c_compiler_gnu" = "xyes"; then
+ AC_SUBST(MAKEDEP_FLAGS, "-MM")
+else
+ AC_SUBST(MAKEDEP_FLAGS, "-M")
+fi
+
+dnl isn't there a better way to check for good linker/stripper ?
+
+dnl if we don't have $LD set, we set it to $(CC)
+dnl LD=${LD:=$CC}
+AC_CHECK_TOOL([LD], [ld], [${CC}])
+
+dnl if we don't have $STRIP set, we set it to ${host}-strip or strip
+
+dnl if we don't have $STRIP set, we set it to ${host}-strip or strip
+AC_CHECK_TOOL([STRIP], [strip], [true])
+AC_MSG_CHECKING([if strip is GNU strip])
+if $STRIP -V | grep GNU > /dev/null
+then
+ AC_SUBST(STRIPFLAGS, "--strip-unneeded")
+ AC_MSG_RESULT([yes])
+else
+ AC_SUBST(STRIPFLAGS,"-x")
+ AC_MSG_RESULT([no])
+fi
+
+dnl
+dnl OK, checks for machines are here now
+dnl
+if test `uname -s` = Linux;
+then
+ LFLAGS="-export_dynamic -shared"
+ CFLAGS="-fPIC $CFLAGS"
+ EXT=pd_linux
+fi
+
+dnl This should use '-bundle_loader /path/to/pd/bin/pd' instead of'-undefined suppress'
+dnl then strip might do something
+if test `uname -s` = Darwin;
+then
+ LD=cc
+ LFLAGS="-bundle -undefined suppress -flat_namespace"
+ EXT=pd_darwin
+ STRIPFLAGS=
+fi
+
+if test `uname | sed -e 's/^MINGW.*/NT/'` = NT;
+then
+ LD=gcc
+ INCLUDES="-I@prefix@/src"
+ DFLAGS="-D__WIN32__ ${DFLAGS}"
+ LFLAGS="-shared @prefix@/bin/pd.dll"
+ EXT=dll
+else
+ PDLIBDIR="/lib/pd"
+fi
+
+if test `uname -s` = IRIX64;
+then
+ LFLAGS="-n32 -DUNIX -DIRIX -DN32 -woff 1080,1064,1185 \
+ -OPT:roundoff=3 -OPT:IEEE_arithmetic=3 -OPT:cray_ivdep=true \
+ -shared -rdata_shared"
+ EXT=pd_irix6
+ dnl DFLAGS="-DUNIX -DIRIX6 ${DFLAGS}"
+ STRIPFLAGS="--strip-unneeded"
+fi
+
+if test `uname -s` = IRIX32;
+then
+ LFLAGS="-o32 -DUNIX -DIRIX -O2
+ -shared -rdata_shared"
+ EXT=pd_irix5
+ dnl DFLAGS="-DUNIX -DIRIX5 ${DFLAGS}"
+ STRIPFLAGS="--strip-unneeded"
+fi
+
+
+if test "x$with_extension" != "x"
+then
+ EXT=$with_extension
+fi
+
+
+dnl Checks for pd-version, to set the correct help-path
+AC_MSG_CHECKING("pd\>=0.37")
+
+if test "$with_pdversion" != ""
+then
+echo -n "($with_pdversion)... "
+ PD_VERSION="$with_pdversion"
+else
+if test "x$cross_compiling" = "xno"
+then
+
+cat > conftest.c << EOF
+#include <stdio.h>
+#include "m_pd.h"
+int main(){
+ printf("%d.%d\n", PD_MAJOR_VERSION, PD_MINOR_VERSION);
+ return 0;
+}
+EOF
+
+ if $CC $INCLUDES -o conftest.o conftest.c > /dev/null 2>&1
+ then
+ PD_VERSION=`./conftest.o`
+ else
+ PD_VERSION=""
+ fi
+ echo -n $PD_VERSION
+else
+dnl we are cross-compiling...
+ echo -n "(X)..."
+ PD_VERSION="0.38"
+fi
+fi
+
+let PD_MAJORVERSION=`echo $PD_VERSION | cut -d"." -f1`+0
+let PD_MINORVERSION=`echo $PD_VERSION | cut -d"." -f2`+0
+
+
+
+if test "$PD_MAJORVERSION" -gt 0 || test "$PD_MINORVERSION" -ge 37
+then
+ REFERENCEPATH=extra/help-
+ echo " yes"
+else
+ REFERENCEPATH=doc/5.reference/
+ echo " no"
+fi
+
+AC_OUTPUT(Makefile)
+
+rm -f conftest.*