Turn '4a-hal-utilities' into an internal library

That way, includes will be cleaner and '4a-hal-utilities'
functions will be usable in plugin.

Change-Id: I8a2146bd4e5dd5ef449b9ba7f2b1eed4d59045d3
Signed-off-by: Jonathan Aillet <jonathan.aillet@iot.bzh>

1 files changed, 51 insertions, 0 deletions

diff --git a/4a-hal-utilities/4a-hal-utilities-alsa-data.c b/4a-hal-utilities/4a-hal-utilities-alsa-data.c
new file mode 100644
index 0000000..ef2967a
--- /dev/null
+++ b/4a-hal-utilities/4a-hal-utilities-alsa-data.c
@@ -0,0 +1,51 @@
+/*
+ * Copyright (C) 2019 "IoT.bzh"
+ * Author Jonathan Aillet <jonathan.aillet@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.
+ */
+
+#define _GNU_SOURCE
+
+#include <stdio.h>
+
+#include <afb-definitions.h>
+
+#include "4a-hal-utilities-alsa-data.h"
+
+/*******************************************************************************
+ *		Free contents of 'CtlHalAlsaMapT' data structure	       *
+ ******************************************************************************/
+
+uint8_t HalUtlFreeAlsaCtlsMap(struct CtlHalAlsaMapT *alsaCtlsMap)
+{
+	int idx;
+
+	if(! alsaCtlsMap)
+		return -1;
+
+	if(alsaCtlsMap->ctlsCount > 0 && ! alsaCtlsMap->ctls)
+		return -2;
+
+	for(idx = 0; idx < alsaCtlsMap->ctlsCount; idx++) {
+		free(alsaCtlsMap->ctls[idx].action);
+		free(alsaCtlsMap->ctls[idx].ctl.alsaCtlProperties.enums);
+		free(alsaCtlsMap->ctls[idx].ctl.alsaCtlProperties.dbscale);
+	}
+
+	free(alsaCtlsMap->ctls);
+
+	free(alsaCtlsMap);
+
+	return 0;
+}
\ No newline at end of file