Pass disable reason to the app

src/ViPER4Android.h

@@ -16,6 +16,8 @@ extern "C" {
 #define PARAM_GET_CONVOLUTION_KERNEL_ID 5
 #define PARAM_GET_DRIVER_VERSION_CODE 6
 #define PARAM_GET_DRIVER_VERSION_NAME 7
+#define PARAM_GET_DISABLE_REASON 8
+#define PARAM_GET_DISABLE_REASON_MESSAGE 9
 
 // Param set
 #define PARAM_SET_UPDATE_STATUS 0x9002

src/ViperContext.cpp

@@ -214,6 +214,20 @@ int32_t ViperContext::handleGetParam(effect_param_t *pCmdParam, effect_param_t *
             *pReplySize = sizeof(effect_param_t) + pReplyParam->psize + vOffset + pReplyParam->vsize;
             return 0;
         }
+        case PARAM_GET_DISABLE_REASON: {
+            pReplyParam->status = 0;
+            pReplyParam->vsize = sizeof(int32_t);
+            *(int32_t *) (pReplyParam->data + vOffset) = static_cast<int32_t>(disableReason);
+            *pReplySize = sizeof(effect_param_t) + pReplyParam->psize + vOffset + pReplyParam->vsize;
+            return 0;
+        }
+        case PARAM_GET_DISABLE_REASON_MESSAGE: {
+            pReplyParam->status = 0;
+            pReplyParam->vsize = disableReasonMessage.size();
+            memcpy(pReplyParam->data + vOffset, disableReasonMessage.c_str(), pReplyParam->vsize);
+            *pReplySize = sizeof(effect_param_t) + pReplyParam->psize + vOffset + pReplyParam->vsize;
+            return 0;
+        }
         default: {
             return -EINVAL;
         }

src/ViperContext.h

@@ -8,9 +8,9 @@
 
 class ViperContext {
 public:
-    enum class DisableReason {
-        NONE,
-        UNKNOWN,
+    enum class DisableReason : int32_t {
+        UNKNOWN = -1,
+        NONE = 0,
         INVALID_FRAME_COUNT,
         INVALID_SAMPLING_RATE,
         INVALID_CHANNEL_COUNT,