| /* |
| * Copyright (C) 2014 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 android.hardware.hdmi; |
| |
| /** |
| * Defines constants and utility methods related to HDMI-CEC protocol. |
| */ |
| public final class HdmiCec { |
| |
| /** TV device type. */ |
| public static final int DEVICE_TV = 0; |
| |
| /** Recording device type. */ |
| public static final int DEVICE_RECORDER = 1; |
| |
| /** Device type reserved for future usage. */ |
| public static final int DEVICE_RESERVED = 2; |
| |
| /** Tuner device type. */ |
| public static final int DEVICE_TUNER = 3; |
| |
| /** Playback device type. */ |
| public static final int DEVICE_PLAYBACK = 4; |
| |
| /** Audio system device type. */ |
| public static final int DEVICE_AUDIO_SYSTEM = 5; |
| |
| // Value indicating the device is not an active source. |
| public static final int DEVICE_INACTIVE = -1; |
| |
| /** Logical address for TV */ |
| public static final int ADDR_TV = 0; |
| |
| /** Logical address for recorder 1 */ |
| public static final int ADDR_RECORDER_1 = 1; |
| |
| /** Logical address for recorder 2 */ |
| public static final int ADDR_RECORDER_2 = 2; |
| |
| /** Logical address for tuner 1 */ |
| public static final int ADDR_TUNER_1 = 3; |
| |
| /** Logical address for playback 1 */ |
| public static final int ADDR_PLAYBACK_1 = 4; |
| |
| /** Logical address for audio system */ |
| public static final int ADDR_AUDIO_SYSTEM = 5; |
| |
| /** Logical address for tuner 2 */ |
| public static final int ADDR_TUNER_2 = 6; |
| |
| /** Logical address for tuner 3 */ |
| public static final int ADDR_TUNER_3 = 7; |
| |
| /** Logical address for playback 2 */ |
| public static final int ADDR_PLAYBACK_2 = 8; |
| |
| /** Logical address for recorder 3 */ |
| public static final int ADDR_RECORDER_3 = 9; |
| |
| /** Logical address for tuner 4 */ |
| public static final int ADDR_TUNER_4 = 10; |
| |
| /** Logical address for playback 3 */ |
| public static final int ADDR_PLAYBACK_3 = 11; |
| |
| /** Logical address reserved for future usage */ |
| public static final int ADDR_RESERVED_1 = 12; |
| |
| /** Logical address reserved for future usage */ |
| public static final int ADDR_RESERVED_2 = 13; |
| |
| /** Logical address for TV other than the one assigned with {@link #ADDR_TV} */ |
| public static final int ADDR_FREE_USE = 14; |
| |
| /** Logical address for devices to which address cannot be allocated */ |
| public static final int ADDR_UNREGISTERED = 15; |
| |
| /** Logical address used in the destination address field for broadcast messages */ |
| public static final int ADDR_BROADCAST = 15; |
| |
| /** Logical address used to indicate it is not initialized or invalid. */ |
| public static final int ADDR_INVALID = -1; |
| |
| // TODO: Complete the list of CEC messages definition. |
| public static final int MESSAGE_FEATURE_ABORT = 0x00; |
| public static final int MESSAGE_IMAGE_VIEW_ON = 0x04; |
| public static final int MESSAGE_TUNER_STEP_INCREMENT = 0x05; |
| public static final int MESSAGE_TUNER_STEP_DECREMENT = 0x06; |
| public static final int MESSAGE_TUNER_DEVICE_STATUS = 0x07; |
| public static final int MESSAGE_GIVE_TUNER_DEVICE_STATUS = 0x08; |
| public static final int MESSAGE_RECORD_ON = 0x09; |
| public static final int MESSAGE_RECORD_STATUS = 0x0A; |
| public static final int MESSAGE_RECORD_OFF = 0x0B; |
| public static final int MESSAGE_TEXT_VIEW_ON = 0x0D; |
| public static final int MESSAGE_RECORD_TV_SCREEN = 0x0F; |
| public static final int MESSAGE_GIVE_DECK_STATUS = 0x1A; |
| public static final int MESSAGE_DECK_STATUS = 0x1B; |
| public static final int MESSAGE_SET_MENU_LANGUAGE = 0x32; |
| public static final int MESSAGE_CLEAR_ANALOG_TIMER = 0x33; |
| public static final int MESSAGE_SET_ANALOG_TIMER = 0x34; |
| public static final int MESSAGE_TIMER_STATUS = 0x35; |
| public static final int MESSAGE_STANDBY = 0x36; |
| public static final int MESSAGE_PLAY = 0x41; |
| public static final int MESSAGE_DECK_CONTROL = 0x42; |
| public static final int MESSAGE_TIMER_CLEARED_STATUS = 0x043; |
| public static final int MESSAGE_USER_CONTROL_PRESSED = 0x44; |
| public static final int MESSAGE_USER_CONTROL_RELEASED = 0x45; |
| public static final int MESSAGE_GET_OSD_NAME = 0x46; |
| public static final int MESSAGE_SET_OSD_NAME = 0x47; |
| public static final int MESSAGE_SET_OSD_STRING = 0x64; |
| public static final int MESSAGE_SET_TIMER_PROGRAM_TITLE = 0x67; |
| public static final int MESSAGE_SYSTEM_AUDIO_MODE_REQUEST = 0x70; |
| public static final int MESSAGE_GIVE_AUDIO_STATUS = 0x71; |
| public static final int MESSAGE_SET_SYSTEM_AUDIO_MODE = 0x72; |
| public static final int MESSAGE_REPORT_AUDIO_STATUS = 0x7A; |
| public static final int MESSAGE_GIVE_SYSTEM_AUDIO_MODE_STATUS = 0x7D; |
| public static final int MESSAGE_SYSTEM_AUDIO_MODE_STATUS = 0x7E; |
| public static final int MESSAGE_ROUTING_CHANGE = 0x80; |
| public static final int MESSAGE_ROUTING_INFORMATION = 0x81; |
| public static final int MESSAGE_ACTIVE_SOURCE = 0x82; |
| public static final int MESSAGE_GIVE_PHYSICAL_ADDRESS = 0x83; |
| public static final int MESSAGE_REPORT_PHYSICAL_ADDRESS = 0x84; |
| public static final int MESSAGE_REQUEST_ACTIVE_SOURCE = 0x85; |
| public static final int MESSAGE_SET_STREAM_PATH = 0x86; |
| public static final int MESSAGE_DEVICE_VENDOR_ID = 0x87; |
| public static final int MESSAGE_VENDOR_COMMAND = 0x89; |
| public static final int MESSAGE_VENDOR_REMOTE_BUTTON_DOWN = 0x8A; |
| public static final int MESSAGE_VENDOR_REMOTE_BUTTON_UP = 0x8B; |
| public static final int MESSAGE_GIVE_DEVICE_VENDOR_ID = 0x8C; |
| public static final int MESSAGE_MENU_REQUEST = 0x8D; |
| public static final int MESSAGE_MENU_STATUS = 0x8E; |
| public static final int MESSAGE_GIVE_DEVICE_POWER_STATUS = 0x8F; |
| public static final int MESSAGE_REPORT_POWER_STATUS = 0x90; |
| public static final int MESSAGE_GET_MENU_LANGUAGE = 0x91; |
| public static final int MESSAGE_SELECT_ANALOG_SERVICE = 0x92; |
| public static final int MESSAGE_SELECT_DIGITAL_SERVICE = 0x93; |
| public static final int MESSAGE_SET_DIGITAL_TIMER = 0x97; |
| public static final int MESSAGE_CLEAR_DIGITAL_TIMER = 0x99; |
| public static final int MESSAGE_SET_AUDIO_RATE = 0x9A; |
| public static final int MESSAGE_INACTIVE_SOURCE = 0x9D; |
| public static final int MESSAGE_CEC_VERSION = 0x9E; |
| public static final int MESSAGE_GET_CEC_VERSION = 0x9F; |
| public static final int MESSAGE_VENDOR_COMMAND_WITH_ID = 0xA0; |
| public static final int MESSAGE_CLEAR_EXTERNAL_TIMER = 0xA1; |
| public static final int MESSAGE_SET_EXTERNAL_TIMER = 0xA2; |
| public static final int MESSAGE_ABORT = 0xFF; |
| |
| public static final int POWER_STATUS_UNKNOWN = -1; |
| public static final int POWER_STATUS_ON = 0; |
| public static final int POWER_STATUS_STANDBY = 1; |
| public static final int POWER_TRANSIENT_TO_ON = 2; |
| public static final int POWER_TRANSIENT_TO_STANDBY = 3; |
| |
| private static final int[] ADDRESS_TO_TYPE = { |
| DEVICE_TV, // ADDR_TV |
| DEVICE_RECORDER, // ADDR_RECORDER_1 |
| DEVICE_RECORDER, // ADDR_RECORDER_2 |
| DEVICE_TUNER, // ADDR_TUNER_1 |
| DEVICE_PLAYBACK, // ADDR_PLAYBACK_1 |
| DEVICE_AUDIO_SYSTEM, // ADDR_AUDIO_SYSTEM |
| DEVICE_TUNER, // ADDR_TUNER_2 |
| DEVICE_TUNER, // ADDR_TUNER_3 |
| DEVICE_PLAYBACK, // ADDR_PLAYBACK_2 |
| DEVICE_RECORDER, // ADDR_RECORDER_3 |
| DEVICE_TUNER, // ADDR_TUNER_4 |
| DEVICE_PLAYBACK, // ADDR_PLAYBACK_3 |
| }; |
| |
| private static final String[] DEFAULT_NAMES = { |
| "TV", |
| "Recorder_1", |
| "Recorder_2", |
| "Tuner_1", |
| "Playback_1", |
| "AudioSystem", |
| "Tuner_2", |
| "Tuner_3", |
| "Playback_2", |
| "Recorder_3", |
| "Tuner_4", |
| "Playback_3", |
| }; |
| |
| private HdmiCec() { } // Prevents instantiation. |
| |
| /** |
| * Check if the given type is valid. A valid type is one of the actual |
| * logical device types defined in the standard ({@link #DEVICE_TV}, |
| * {@link #DEVICE_PLAYBACK}, {@link #DEVICE_TUNER}, {@link #DEVICE_RECORDER}, |
| * and {@link #DEVICE_AUDIO_SYSTEM}). |
| * |
| * @param type device type |
| * @return true if the given type is valid |
| */ |
| public static boolean isValidType(int type) { |
| return (DEVICE_TV <= type && type <= DEVICE_AUDIO_SYSTEM) |
| && type != DEVICE_RESERVED; |
| } |
| |
| /** |
| * Check if the given logical address is valid. A logical address is valid |
| * if it is one allocated for an actual device which allows communication |
| * with other logical devices. |
| * |
| * @param address logical address |
| * @return true if the given address is valid |
| */ |
| public static boolean isValidAddress(int address) { |
| // TODO: We leave out the address 'free use(14)' for now. Check this later |
| // again to make sure it is a valid address for communication. |
| return (ADDR_TV <= address && address <= ADDR_PLAYBACK_3); |
| } |
| |
| /** |
| * Return the device type for the given logical address. |
| * |
| * @param address logical address |
| * @return device type for the given logical address; DEVICE_INACTIVE |
| * if the address is not valid. |
| */ |
| public static int getTypeFromAddress(int address) { |
| if (isValidAddress(address)) { |
| return ADDRESS_TO_TYPE[address]; |
| } |
| return DEVICE_INACTIVE; |
| } |
| |
| /** |
| * Return the default device name for a logical address. This is the name |
| * by which the logical device is known to others until a name is |
| * set explicitly using HdmiCecService.setOsdName. |
| * |
| * @param address logical address |
| * @return default device name; empty string if the address is not valid |
| */ |
| public static String getDefaultDeviceName(int address) { |
| if (isValidAddress(address)) { |
| return DEFAULT_NAMES[address]; |
| } |
| return ""; |
| } |
| } |
