added more funcionality to salsa (save/load sound settings), moved volume

settings to /etc/alsa/

alsa-utils.spec

@@ -4,7 +4,7 @@
 Summary: 	Advanced Linux Sound Architecture (ALSA) utilities
 Name: 		alsa-utils
 Version: 	1.0.14
-Release: 	0.4%{?prever_dot}%{?dist}
+Release: 	0.5%{?prever_dot}%{?dist}
 License: 	GPL
 Group: 		Applications/Multimedia
 URL: 		http://www.alsa-project.org/
@@ -39,15 +39,19 @@ Architecture (ALSA).
 %{__rm} -rf ${RPM_BUILD_ROOT}
 make install DESTDIR=$RPM_BUILD_ROOT
 
-mkdir -p $RPM_BUILD_ROOT/%{_sbindir}
+# Install ALSA udev rules
-ln -s ../../sbin/alsactl $RPM_BUILD_ROOT/%{_sbindir}/alsactl
-
-install -m 755 salsa $RPM_BUILD_ROOT/sbin
 mkdir -p -m755 $RPM_BUILD_ROOT/etc/udev/rules.d/
 install -m 644 %{SOURCE10} $RPM_BUILD_ROOT/etc/udev/rules.d/90-alsa.rules
+
+# Install support utilities
 mkdir -p -m755 $RPM_BUILD_ROOT/bin
 install -m 755 alsaunmute  %{buildroot}/bin
 install -m 755 alsacard  %{buildroot}/bin
+install -m 755 salsa %{buildroot}/sbin
+
+# Link alsactl to /usr/sbin
+mkdir -p $RPM_BUILD_ROOT/%{_sbindir}
+ln -s ../../sbin/alsactl $RPM_BUILD_ROOT/%{_sbindir}/alsactl
 
 %clean
 %{__rm} -rf $RPM_BUILD_ROOT
@@ -57,9 +61,9 @@ install -m 755 alsacard  %{buildroot}/bin
 %doc COPYING ChangeLog README TODO
 /etc/udev/rules.d/*
 /bin/*
+/sbin/*
 %{_bindir}/*
 %{_sbindir}/*
-/sbin/*
 %{_mandir}/man?/*
 %dir %{_datadir}/sounds
 %dir %{_datadir}/sounds/alsa
@@ -70,6 +74,10 @@ install -m 755 alsacard  %{buildroot}/bin
 /usr/share/locale/*
 
 %changelog
+* Wed Apr 18 2007 Martin Stransky <stransky@redhat.com> 1.0.14-0.5.rc2
+- added more funcionality to salsa (save/load sound settings),
+  moved volume settings to /etc/alsa/
+
 * Thu Apr 10 2007 Martin Stransky <stransky@redhat.com> 1.0.14-0.4.rc2
 - added support for large files
 - minor fix in alsaunmute

salsa.c

@@ -1,4 +1,4 @@
-/* Copyright 2005 Red Hat, Inc.
+/* Copyright 2007 Red Hat, Inc.
  *
  * Portions extraced from various ALSA code:
  *  Copyright (c) by Abramo Bagnara <abramo@alsa-project.org>
@@ -16,10 +16,13 @@
 #include <stdio.h>
 #include <stdlib.h>
 #include <string.h>
+#include <time.h>
 
 #include <alsa/asoundlib.h>
 
-#define ALSA_CONFIG_PATH	"/etc/asound.state"
+#define ALSA_CONFIG_PATH	"/etc/alsa/asound.state"
+#define ALL_CARDS         	(-1)
+
 
 int get_card_number()
 {
@@ -75,15 +78,30 @@ out:
 
 }
 
-int run_alsactl(int index)
+void load_volume_settings(int index)
 {
-  char *args[] = { "/sbin/alsactl", "restore", NULL, NULL };
+  char *args[] = { "/sbin/alsactl", "-f", ALSA_CONFIG_PATH, "restore", NULL, NULL };
-  char num[10];
+  char  num[10];
+
+  if(index != ALL_CARDS) {
+    snprintf(num, 10, "%d", index);
+    args[4] = num;
+  }
+  
+  execv(args[0], args);  
+}
+
+void save_volume_settings(int index)
+{
+  char *args[] = { "/sbin/alsactl", "-f", ALSA_CONFIG_PATH, "store", NULL, NULL };
+  char  num[10];
+  
+  if(index != ALL_CARDS) {
+    snprintf(num, 10, "%d", index);
+    args[4] = num;    
+  }
   
-  sprintf(num, "%d", index);
-  args[2] = num;
   execv(args[0], args);
-  return 1;
 }
 
 void frob_mixer(int index)
@@ -94,17 +112,55 @@ void frob_mixer(int index)
   execl("/bin/alsaunmute","/bin/alsaunmute", tmp, "-v", NULL);
 }
 
+void banner(void)
+{
+  printf("ALSA volume settings handler, Copyright 2007 Red Hat, Inc.\n");
+  printf("This software may be freely redistributed under\nthe terms of the GNU public license.\n\n");
+  
+  printf("Usage: salsa [options] [card number]\n\n");
+  printf(" Options:\n");
+  printf("    -l      - Load volume settings\n");
+  printf("    -s      - Save volume settings\n\n");
+  printf(" Card number:\n");
+  printf("    ##      - An affected card. If it isn't specified,\n");
+  printf("              configure all installed sound cards.\n\n");
+  
+  exit(0);   
+}
+
 int main(int argc, char **argv)
 {
   int i;
   
-  i = get_card_number();
+  if(argc == 1) {
-  if (i < 0)
+    i = get_card_number();
-    return 0;
+    if (i < 0) {
-  if (has_config(i))
+      return 0;
-    return run_alsactl(i);
+    }
-  else
+    if (has_config(i)) {
-    frob_mixer(i);
+      load_volume_settings(i);
+    }
+    else {
+      frob_mixer(i);
+    }
+  }
+  else if(argc >= 2) {
+    
+    int card_number = ALL_CARDS;
+    if(argc == 3) {
+      card_number = atoi(argv[2]);
+    }
+    
+    if(argv[1][1] == 'l') {
+      load_volume_settings(card_number);
+    }
+    else if(argv[1][1] == 's') {
+      save_volume_settings(card_number);
+    }
+    else {
+      banner();
+    }
+  }
   
   return(0);
 }