1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
|
package org.chromium.latency.walt.programmer;
import android.content.Context;
import android.hardware.usb.UsbDevice;
import android.hardware.usb.UsbInterface;
import org.chromium.latency.walt.BaseUsbConnection;
class BootloaderConnection extends BaseUsbConnection {
private static final int HALFKAY_VID = 0x16C0;
private static final int HALFKAY_PID = 0x0478;
private static final Object LOCK = new Object();
private static BootloaderConnection instance;
public static BootloaderConnection getInstance(Context context) {
synchronized (LOCK) {
if (instance == null) {
instance = new BootloaderConnection(context.getApplicationContext());
}
return instance;
}
}
@Override
public int getPid() {
return HALFKAY_PID;
}
@Override
public int getVid() {
return HALFKAY_VID;
}
@Override
protected boolean isCompatibleUsbDevice(UsbDevice usbDevice) {
return ((usbDevice.getProductId() == HALFKAY_PID) &&
(usbDevice.getVendorId() == HALFKAY_VID));
}
@Override
public void onConnect() {
int ifIdx = 0;
UsbInterface iface = usbDevice.getInterface(ifIdx);
if (usbConnection.claimInterface(iface, true)) {
logger.log("Interface claimed successfully\n");
} else {
logger.log("ERROR - can't claim interface\n");
}
super.onConnect();
}
public void write(byte[] buf, int timeout) {
write(buf, 0, buf.length, timeout);
}
public void write(byte[] buf, int index, int len, int timeout) {
if (!isConnected()) return;
while (timeout > 0) {
// USB HID Set_Report message
int result = usbConnection.controlTransfer(0x21, 9, 0x0200, index, buf, len, timeout);
if (result >= 0) break;
try {
Thread.sleep(10);
} catch (InterruptedException e) {
e.printStackTrace();
}
timeout -= 10;
}
}
private BootloaderConnection(Context context) {
super(context);
}
}
|
