1 /*
2 * Copyright (C) 2015 The Android Open Source Project
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 * http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16
17 #include "sync_clock.h"
18
19 #include <android/log.h>
20 #include <jni.h>
21
22
23 #define APPNAME "ClockSyncJNI"
24
25 // This is global so that we don't have to pass it aroundbetween Java and here.
26 // TODO: come up with some more elegant solution.
27 struct clock_connection clk;
28
29 jlong
Java_org_chromium_latency_walt_WaltUsbConnection_syncClock__III(JNIEnv * env,jobject thiz,jint fd,jint endpoint_out,jint endpoint_in)30 Java_org_chromium_latency_walt_WaltUsbConnection_syncClock__III(
31 __attribute__((unused)) JNIEnv* env,
32 __attribute__((unused)) jobject thiz,
33 jint fd,
34 jint endpoint_out,
35 jint endpoint_in
36 ){
37 clk.fd = (int)fd;
38 clk.endpoint_in = (int)endpoint_in;
39 clk.endpoint_out = (int)endpoint_out;
40 clk.t_base = 0;
41 sync_clocks(&clk);
42 // __android_log_print(ANDROID_LOG_VERBOSE, APPNAME, "Returned from sync_clocks\n");
43
44 int64_t t_base = clk.t_base;
45 return (jlong) t_base;
46 }
47
48 void
Java_org_chromium_latency_walt_WaltUsbConnection_updateBounds()49 Java_org_chromium_latency_walt_WaltUsbConnection_updateBounds() {
50 update_bounds(&clk);
51 }
52
53 jint
Java_org_chromium_latency_walt_WaltUsbConnection_getMinE()54 Java_org_chromium_latency_walt_WaltUsbConnection_getMinE() {
55 return clk.minE;
56 }
57
58
59 jint
Java_org_chromium_latency_walt_WaltUsbConnection_getMaxE()60 Java_org_chromium_latency_walt_WaltUsbConnection_getMaxE() {
61 return clk.maxE;
62 }
63