adds init function and getter for default cfg path

Change-Id: I620d485bb935f984efcfeaf29399d184d3261e7d
Signed-off-by: Tobias Jahnke <tobias.jahnke@microchip.com>

1 files changed, 40 insertions, 1 deletions

diff --git a/ucs2-afb/ucs_binding.c b/ucs2-afb/ucs_binding.c
index e1451a0..a234410 100644
--- a/ucs2-afb/ucs_binding.c
+++ b/ucs2-afb/ucs_binding.c
@@ -42,6 +42,8 @@
 
 #define MAX_FILENAME_LEN (100)
 #define RX_BUFFER (64)
+#define XML_CONFIG_FOLDER "/data/"
+#define XML_CONFIG_FILE "config_multichannel_audio_kit.xml"
 
 /** Internal structure, enabling multiple instances of this component.
  * \note Do not access any of this variables.
@@ -286,6 +288,33 @@ int onReadCB (sd_event_source* src, int fileFd, uint32_t revents, void* pTag) {
     return 0;
 }
 
+
+STATIC char* GetDefaultConfig(void) {
+    
+    char const *data_path = getenv("AFM_APP_INSTALL_DIR");
+
+    if (!data_path) {
+        AFB_ERROR("AFM_APP_INSTALL_DIR is not defined");
+    }
+    else {
+        size_t size;
+        char * config_path;
+        
+        AFB_NOTICE("AFM_APP_INSTALL_DIR is: %s", data_path);
+        size = strlen(data_path) + strlen(XML_CONFIG_FOLDER) + strlen(XML_CONFIG_FILE) + 2;
+        config_path = malloc(size);
+        if (config_path != NULL) {
+            snprintf(config_path, size, "%s%s%s", data_path, XML_CONFIG_FOLDER, XML_CONFIG_FILE);
+            if(access(config_path, R_OK ) == 0) {
+                AFB_NOTICE("Default configuration: %s", config_path);
+                return config_path;
+            }
+        }
+    }
+    
+    return NULL;
+}
+
 STATIC UcsXmlVal_t* ParseFile(struct afb_req request) {
     char *xmlBuffer;
     ssize_t readSize;
@@ -366,7 +395,7 @@ PUBLIC void ucs2_initialise (struct afb_req request) {
         afb_req_fail_f (request, "UNICENS-init", "Fail to initialize UNICENS");
         goto OnErrorExit;
     }
-
+    
     afb_req_success(request,NULL,"UNICENS-active");
 
  OnErrorExit:
@@ -593,3 +622,13 @@ PUBLIC void ucs2_writei2c (struct afb_req request) {
  OnErrorExit:
     return;
 }
+
+PUBLIC int ucs2_initbinding(void) {
+    char *config_file = GetDefaultConfig();
+    if (config_file != NULL) {
+        
+        free(config_file);
+    }
+    
+    return 0;
+}