1 files changed, 71 insertions, 0 deletions
diff --git a/AlsaSound/include/AlsaMixerHal.h b/AlsaSound/include/AlsaMixerHal.h
new file mode 100644
index 0000000..399f8ab
--- /dev/null
+++ b/AlsaSound/include/AlsaMixerHal.h
@@ -0,0 +1,71 @@
+/*
+ * Copyright (C) 2016 "IoT.bzh"
+ * Author Fulup Ar Foll <fulup@iot.bzh>
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ * 
+ * reference: 
+ *   amixer contents; amixer controls;
+ *   http://www.tldp.org/HOWTO/Alsa-sound-6.html 
+ */
+
+
+#ifndef ALSAMIXERMAP_H
+#define ALSAMIXERMAP_H
+
+// Most controls are MIXER but some vendor specific are possible
+typedef enum {
+    OUTVOL,
+    PCMVOL,
+    INVOL,
+    SWITCH,
+    ROUTE,
+    CARD,
+} groupEnum;
+
+typedef enum {
+    READ,
+    WRITE,
+    RW,
+} aclEnum;
+
+typedef enum {
+   Master_Playback_Volume,
+   PCM_Playback_Volume,
+   PCM_Playback_Switch,
+   Capture_Volume,
+} actionEnum;
+
+typedef const struct {
+    actionEnum action;
+    int numid;
+    groupEnum group;
+    int values;
+    int minval;
+    int maxval;
+    int step;
+    char* info;
+    aclEnum acl;
+    
+} AlsaHalMapT;
+
+typedef struct  {
+    const char  *halname;
+    const char  *longname;
+    const char  *info;
+    AlsaHalMapT *ctls;
+    
+} AlsaHalSndT;
+
+#endif /* ALSAMIXERMAP_H */
+