adds HAL for MOST/UNICENS

1 files changed, 53 insertions, 0 deletions

diff --git a/HAL-afb/hal-most-unicens/hal_most_unicens.c b/HAL-afb/hal-most-unicens/hal_most_unicens.c
new file mode 100644
index 0000000..a98906c
--- /dev/null
+++ b/HAL-afb/hal-most-unicens/hal_most_unicens.c
@@ -0,0 +1,53 @@
+/*
+ * Copyright (C) 2017, Microchip Technology Inc. and its subsidiaries.
+ * Author Tobias Jahnke
+ *
+ * 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.
+ * 
+ */
+#define _GNU_SOURCE 
+#include "hal-interface.h"
+#include "audio-interface.h" 
+
+/* declare ALSA mixer controls */
+STATIC alsaHalMapT  alsaHalMap[]= { 
+  { .tag=Master_Playback_Volume, .ctl={.name="Master Playback Volume" } },
+  { .tag=Master_OnOff_Switch   , .ctl={.name="Master Playback Switch" } },
+  { .tag=PCM_Playback_Volume   , .ctl={.name="PCM Playback Volume"    } },
+  { .tag=EndHalCrlTag}              /* marker for end of the array */
+} ;
+
+/* HAL sound card mapping info */
+STATIC alsaHalSndCardT alsaHalSndCard  = {
+    .name  = "Microchip MOST:1",   /*  WARNING: name MUST match with 'aplay -l' */
+    .info  = "HAL for MICROCHIP MOST sound card controlled by UNICENS binding",
+    .ctls  = alsaHalMap,
+    .volumeCB = NULL,               /* use default volume normalization function */
+};
+
+
+STATIC int sndServiceInit () {
+    int err;
+    AFB_DEBUG ("Initializing HAL-MOST-UNICENS-BINDING");
+    
+    err = halServiceInit (afbBindingV2.api, &alsaHalSndCard);
+    return err;
+}
+
+// API prefix should be unique for each snd card
+PUBLIC const struct afb_binding_v2 afbBindingV2 = {
+    .api     = "hal-most-unicens",
+    .init    = sndServiceInit,
+    .verbs   = halServiceApi,
+    .onevent = halServiceEvent,
+};