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
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
|
/*
* 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.
*/
package com.android.tv.tuner;
import android.content.BroadcastReceiver;
import android.content.ComponentName;
import android.content.Context;
import android.content.Intent;
import android.content.pm.PackageManager;
import android.hardware.usb.UsbDevice;
import android.hardware.usb.UsbManager;
import android.media.tv.TvInputInfo;
import android.media.tv.TvInputManager;
import android.os.Handler;
import android.os.Looper;
import android.os.Message;
import android.support.v4.os.BuildCompat;
import android.util.Log;
import android.widget.Toast;
import com.android.tv.Features;
import com.android.tv.TvApplication;
import com.android.tv.tuner.R;
import com.android.tv.tuner.setup.TunerSetupActivity;
import com.android.tv.tuner.tvinput.TunerTvInputService;
import com.android.tv.tuner.util.TunerInputInfoUtils;
import java.util.Map;
/**
* Controls the package visibility of {@link TunerTvInputService}.
* <p>
* Listens to broadcast intent for {@link Intent#ACTION_BOOT_COMPLETED},
* {@code UsbManager.ACTION_USB_DEVICE_ATTACHED}, and {@code UsbManager.ACTION_USB_DEVICE_ATTACHED}
* to update the connection status of the supported USB TV tuners.
*/
public class TunerInputController extends BroadcastReceiver {
private static final boolean DEBUG = true;
private static final String TAG = "TunerInputController";
private static final TunerDevice[] TUNER_DEVICES = {
new TunerDevice(0x2040, 0xb123), // WinTV-HVR-955Q
new TunerDevice(0x07ca, 0x0837) // AverTV Volar Hybrid Q
};
private static final int MSG_ENABLE_INPUT_SERVICE = 1000;
private static final long DVB_DRIVER_CHECK_DELAY_MS = 300;
private DvbDeviceAccessor mDvbDeviceAccessor;
private final Handler mHandler = new Handler(Looper.getMainLooper()) {
@Override
public void handleMessage(Message msg) {
switch (msg.what) {
case MSG_ENABLE_INPUT_SERVICE:
Context context = (Context) msg.obj;
if (mDvbDeviceAccessor == null) {
mDvbDeviceAccessor = new DvbDeviceAccessor(context);
}
enableTunerTvInputService(context, mDvbDeviceAccessor.isDvbDeviceAvailable());
break;
}
}
};
/**
* Simple data holder for a USB device. Used to represent a tuner model, and compare
* against {@link UsbDevice}.
*/
private static class TunerDevice {
private final int vendorId;
private final int productId;
private TunerDevice(int vendorId, int productId) {
this.vendorId = vendorId;
this.productId = productId;
}
private boolean equals(UsbDevice device) {
return device.getVendorId() == vendorId && device.getProductId() == productId;
}
}
@Override
public void onReceive(Context context, Intent intent) {
if (DEBUG) Log.d(TAG, "Broadcast intent received:" + intent);
TvApplication.setCurrentRunningProcess(context, true);
if (!Features.TUNER.isEnabled(context)) {
enableTunerTvInputService(context, false);
return;
}
switch (intent.getAction()) {
case Intent.ACTION_BOOT_COMPLETED:
case TvApplication.ACTION_APPLICATION_FIRST_LAUNCHED:
case UsbManager.ACTION_USB_DEVICE_ATTACHED:
case UsbManager.ACTION_USB_DEVICE_DETACHED:
if (TunerInputInfoUtils.isBuiltInTuner(context)) {
enableTunerTvInputService(context, true);
break;
}
// Falls back to the below to check USB tuner devices.
boolean enabled = isUsbTunerConnected(context);
mHandler.removeMessages(MSG_ENABLE_INPUT_SERVICE);
if (enabled) {
// Need to check if DVB driver is accessible. Since the driver creation
// could be happen after the USB event, delay the checking by
// DVB_DRIVER_CHECK_DELAY_MS.
mHandler.sendMessageDelayed(
mHandler.obtainMessage(MSG_ENABLE_INPUT_SERVICE, context),
DVB_DRIVER_CHECK_DELAY_MS);
} else {
enableTunerTvInputService(context, false);
}
break;
}
}
/**
* See if any USB tuner hardware is attached in the system.
*
* @param context {@link Context} instance
* @return {@code true} if any tuner device we support is plugged in
*/
private boolean isUsbTunerConnected(Context context) {
UsbManager manager = (UsbManager) context.getSystemService(Context.USB_SERVICE);
Map<String, UsbDevice> deviceList = manager.getDeviceList();
for (UsbDevice device : deviceList.values()) {
if (DEBUG) {
Log.d(TAG, "Device: " + device);
}
for (TunerDevice tuner : TUNER_DEVICES) {
if (tuner.equals(device)) {
Log.i(TAG, "Tuner found");
return true;
}
}
}
return false;
}
/**
* Enable/disable the component {@link TunerTvInputService}.
*
* @param context {@link Context} instance
* @param enabled {@code true} to enable the service; otherwise {@code false}
*/
private void enableTunerTvInputService(Context context, boolean enabled) {
if (DEBUG) Log.d(TAG, "enableTunerTvInputService: " + enabled);
PackageManager pm = context.getPackageManager();
ComponentName componentName = new ComponentName(context, TunerTvInputService.class);
// Don't kill app by enabling/disabling TvActivity. If LC is killed by enabling/disabling
// TvActivity, the following pm.setComponentEnabledSetting doesn't work.
((TvApplication) context.getApplicationContext()).handleInputCountChanged(
true, enabled, true);
// Since PackageManager.DONT_KILL_APP delays the operation by 10 seconds
// (PackageManagerService.BROADCAST_DELAY), we'd better avoid using it. It is used only
// when the LiveChannels app is active since we don't want to kill the running app.
int flags = TvApplication.getSingletons(context).getMainActivityWrapper().isCreated()
? PackageManager.DONT_KILL_APP : 0;
int newState = enabled ? PackageManager.COMPONENT_ENABLED_STATE_ENABLED
: PackageManager.COMPONENT_ENABLED_STATE_DISABLED;
if (newState != pm.getComponentEnabledSetting(componentName)) {
// Send/cancel the USB tuner TV input setup recommendation card.
TunerSetupActivity.onTvInputEnabled(context, enabled);
// Enable/disable the USB tuner TV input.
pm.setComponentEnabledSetting(componentName, newState, flags);
if (!enabled) {
Toast.makeText(
context, R.string.msg_usb_device_detached, Toast.LENGTH_SHORT).show();
}
if (DEBUG) Log.d(TAG, "Status updated:" + enabled);
} else if (enabled) {
// When # of USB tuners is changed or the device just boots.
TunerInputInfoUtils.updateTunerInputInfo(context);
}
}
}
|
