1 files changed, 102 insertions, 0 deletions
diff --git a/hal/audio_extn/audio_extn.c b/hal/audio_extn/audio_extn.c
new file mode 100644
index 00000000..dcc9baf6
--- /dev/null
+++ b/hal/audio_extn/audio_extn.c
@@ -0,0 +1,102 @@
+/*
+ * Copyright (C) 2015 The Android Open Source Project
+ *
+ * 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 LOG_TAG "audio_hw_extn"
+/*#define LOG_NDEBUG 0*/
+#define LOG_NDDEBUG 0
+
+#include <stdlib.h>
+#include <errno.h>
+#include <dlfcn.h>
+#include <cutils/properties.h>
+#include <cutils/log.h>
+
+#include "audio_hw.h"
+#include "audio_extn.h"
+#include "platform.h"
+#include "platform_api.h"
+
+
+
+#ifdef KPI_OPTIMIZE_ENABLED
+typedef int (*perf_lock_acquire_t)(int, int, int*, int);
+typedef int (*perf_lock_release_t)(int);
+
+static void *qcopt_handle;
+static perf_lock_acquire_t perf_lock_acq;
+static perf_lock_release_t perf_lock_rel;
+
+static int perf_lock_handle;
+char opt_lib_path[PROPERTY_VALUE_MAX] = {0};
+
+int perf_lock_opts[] = {0x101, 0x20E, 0x30E};
+
+int audio_extn_perf_lock_init(void)
+{
+    int ret = 0;
+    if (qcopt_handle == NULL) {
+        if (property_get("ro.vendor.extension_library",
+                         opt_lib_path, NULL) <= 0) {
+            ALOGE("%s: Failed getting perf property", __func__);
+            ret = -EINVAL;
+            goto err;
+        }
+        if ((qcopt_handle = dlopen(opt_lib_path, RTLD_NOW)) == NULL) {
+            ALOGE("%s: Failed to open perf handle", __func__);
+            ret = -EINVAL;
+            goto err;
+        } else {
+            perf_lock_acq = (perf_lock_acquire_t)dlsym(qcopt_handle,
+                                                       "perf_lock_acq");
+            if (perf_lock_acq == NULL) {
+                ALOGE("%s: Perf lock Acquire NULL", __func__);
+                ret = -EINVAL;
+                goto err;
+            }
+            perf_lock_rel = (perf_lock_release_t)dlsym(qcopt_handle,
+                                                       "perf_lock_rel");
+            if (perf_lock_rel == NULL) {
+                ALOGE("%s: Perf lock Release NULL", __func__);
+                ret = -EINVAL;
+                goto err;
+            }
+            ALOGD("%s: Perf lock handles Success", __func__);
+        }
+    }
+err:
+    return ret;
+}
+
+void audio_extn_perf_lock_acquire(void)
+{
+    if (perf_lock_acq) {
+        perf_lock_handle = perf_lock_acq(perf_lock_handle, 0, perf_lock_opts, 3);
+        ALOGV("%s: Perf lock acquired", __func__);
+    } else {
+        ALOGE("%s: Perf lock acquire error", __func__);
+    }
+}
+
+void audio_extn_perf_lock_release(void)
+{
+    if (perf_lock_rel && perf_lock_handle) {
+        perf_lock_rel(perf_lock_handle);
+        ALOGV("%s: Perf lock released", __func__);
+    } else {
+        ALOGE("%s: Perf lock release error", __func__);
+    }
+}
+#endif /* KPI_OPTIMIZE_ENABLED */