Merge "Vibra: Add loading of the vibrator hardware module."

services/core/java/com/android/server/VibratorService.java

@@ -88,6 +88,7 @@ public class VibratorService extends IVibratorService.Stub
     private SettingsObserver mSettingObserver;
 
     native static boolean vibratorExists();
+    native static void vibratorInit();
     native static void vibratorOn(long milliseconds);
     native static void vibratorOff();
 
@@ -195,6 +196,7 @@ public class VibratorService extends IVibratorService.Stub
     }
 
     VibratorService(Context context) {
+        vibratorInit();
         // Reset the hardware to a default state, in case this is a runtime
         // restart instead of a fresh boot.
         vibratorOff();

services/core/jni/com_android_server_VibratorService.cpp

@@ -22,32 +22,69 @@
 
 #include <utils/misc.h>
 #include <utils/Log.h>
-#include <hardware_legacy/vibrator.h>
+#include <hardware/vibrator.h>
 
 #include <stdio.h>
 
 namespace android
 {
 
+static hw_module_t *gVibraModule = NULL;
+static vibrator_device_t *gVibraDevice = NULL;
+
+static void vibratorInit(JNIEnv /* env */, jobject /* clazz */)
+{
+    if (gVibraModule != NULL) {
+        return;
+    }
+
+    int err = hw_get_module(VIBRATOR_HARDWARE_MODULE_ID, (hw_module_t const**)&gVibraModule);
+
+    if (err) {
+        ALOGE("Couldn't load %s module (%s)", VIBRATOR_HARDWARE_MODULE_ID, strerror(-err));
+    } else {
+        if (gVibraModule) {
+            vibrator_open(gVibraModule, &gVibraDevice);
+        }
+    }
+}
+
 static jboolean vibratorExists(JNIEnv* /* env */, jobject /* clazz */)
 {
-    return vibrator_exists() > 0 ? JNI_TRUE : JNI_FALSE;
+    if (gVibraModule && gVibraDevice) {
+        return JNI_TRUE;
+    } else {
+        return JNI_FALSE;
+    }
 }
 
 static void vibratorOn(JNIEnv* /* env */, jobject /* clazz */, jlong timeout_ms)
 {
-    // ALOGI("vibratorOn\n");
-    vibrator_on(timeout_ms);
+    if (gVibraDevice) {
+        int err = gVibraDevice->vibrator_on(gVibraDevice, timeout_ms);
+        if (err != 0) {
+            ALOGE("The hw module failed in vibrator_on: %s", strerror(-err));
+        }
+    } else {
+        ALOGW("Tried to vibrate but there is no vibrator device.");
+    }
 }
 
 static void vibratorOff(JNIEnv* /* env */, jobject /* clazz */)
 {
-    // ALOGI("vibratorOff\n");
-    vibrator_off();
+    if (gVibraDevice) {
+        int err = gVibraDevice->vibrator_off(gVibraDevice);
+        if (err != 0) {
+            ALOGE("The hw module failed in vibrator_off(): %s", strerror(-err));
+        }
+    } else {
+        ALOGW("Tried to stop vibrating but there is no vibrator device.");
+    }
 }
 
 static const JNINativeMethod method_table[] = {
     { "vibratorExists", "()Z", (void*)vibratorExists },
+    { "vibratorInit", "()V", (void*)vibratorInit },
     { "vibratorOn", "(J)V", (void*)vibratorOn },
     { "vibratorOff", "()V", (void*)vibratorOff }
 };