blob: 27dc3352113767288d7396fb07346159feeaa864 [file] [log] [blame]
Eric Laurente552edb2014-03-10 17:42:56 -07001/*
2 * Copyright (C) 2009 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
Eric Laurente0720872014-03-11 09:30:41 -070017#define LOG_TAG "AudioPolicyManager"
Eric Laurente552edb2014-03-10 17:42:56 -070018//#define LOG_NDEBUG 0
19
20//#define VERY_VERBOSE_LOGGING
21#ifdef VERY_VERBOSE_LOGGING
22#define ALOGVV ALOGV
23#else
24#define ALOGVV(a...) do { } while(0)
25#endif
26
27// A device mask for all audio input devices that are considered "virtual" when evaluating
28// active inputs in getActiveInput()
29#define APM_AUDIO_IN_DEVICE_VIRTUAL_ALL AUDIO_DEVICE_IN_REMOTE_SUBMIX
30// A device mask for all audio output devices that are considered "remote" when evaluating
31// active output devices in isStreamActiveRemotely()
32#define APM_AUDIO_OUT_DEVICE_REMOTE_ALL AUDIO_DEVICE_OUT_REMOTE_SUBMIX
33
Eric Laurentd4692962014-05-05 18:13:44 -070034#include <inttypes.h>
Eric Laurente552edb2014-03-10 17:42:56 -070035#include <math.h>
Eric Laurentd4692962014-05-05 18:13:44 -070036
Eric Laurente552edb2014-03-10 17:42:56 -070037#include <cutils/properties.h>
Eric Laurentd4692962014-05-05 18:13:44 -070038#include <utils/Log.h>
39#include <hardware/audio.h>
40#include <hardware/audio_effect.h>
41#include <hardware_legacy/audio_policy_conf.h>
Eric Laurent3b73df72014-03-11 09:06:29 -070042#include <media/AudioParameter.h>
Eric Laurentd4692962014-05-05 18:13:44 -070043#include "AudioPolicyManager.h"
Eric Laurente552edb2014-03-10 17:42:56 -070044
Eric Laurent3b73df72014-03-11 09:06:29 -070045namespace android {
Eric Laurente552edb2014-03-10 17:42:56 -070046
47// ----------------------------------------------------------------------------
Eric Laurent3a4311c2014-03-17 12:00:47 -070048// Definitions for audio_policy.conf file parsing
49// ----------------------------------------------------------------------------
50
51struct StringToEnum {
52 const char *name;
53 uint32_t value;
54};
55
56#define STRING_TO_ENUM(string) { #string, string }
57#define ARRAY_SIZE(a) (sizeof(a) / sizeof((a)[0]))
58
59const StringToEnum sDeviceNameToEnumTable[] = {
60 STRING_TO_ENUM(AUDIO_DEVICE_OUT_EARPIECE),
61 STRING_TO_ENUM(AUDIO_DEVICE_OUT_SPEAKER),
62 STRING_TO_ENUM(AUDIO_DEVICE_OUT_WIRED_HEADSET),
63 STRING_TO_ENUM(AUDIO_DEVICE_OUT_WIRED_HEADPHONE),
64 STRING_TO_ENUM(AUDIO_DEVICE_OUT_BLUETOOTH_SCO),
65 STRING_TO_ENUM(AUDIO_DEVICE_OUT_BLUETOOTH_SCO_HEADSET),
66 STRING_TO_ENUM(AUDIO_DEVICE_OUT_BLUETOOTH_SCO_CARKIT),
67 STRING_TO_ENUM(AUDIO_DEVICE_OUT_ALL_SCO),
68 STRING_TO_ENUM(AUDIO_DEVICE_OUT_BLUETOOTH_A2DP),
69 STRING_TO_ENUM(AUDIO_DEVICE_OUT_BLUETOOTH_A2DP_HEADPHONES),
70 STRING_TO_ENUM(AUDIO_DEVICE_OUT_BLUETOOTH_A2DP_SPEAKER),
71 STRING_TO_ENUM(AUDIO_DEVICE_OUT_ALL_A2DP),
72 STRING_TO_ENUM(AUDIO_DEVICE_OUT_AUX_DIGITAL),
Eric Laurent1b776232014-05-19 17:26:41 -070073 STRING_TO_ENUM(AUDIO_DEVICE_OUT_HDMI),
Eric Laurent3a4311c2014-03-17 12:00:47 -070074 STRING_TO_ENUM(AUDIO_DEVICE_OUT_ANLG_DOCK_HEADSET),
75 STRING_TO_ENUM(AUDIO_DEVICE_OUT_DGTL_DOCK_HEADSET),
76 STRING_TO_ENUM(AUDIO_DEVICE_OUT_USB_ACCESSORY),
77 STRING_TO_ENUM(AUDIO_DEVICE_OUT_USB_DEVICE),
78 STRING_TO_ENUM(AUDIO_DEVICE_OUT_ALL_USB),
79 STRING_TO_ENUM(AUDIO_DEVICE_OUT_REMOTE_SUBMIX),
Eric Laurent1b776232014-05-19 17:26:41 -070080 STRING_TO_ENUM(AUDIO_DEVICE_OUT_TELEPHONY_TX),
81 STRING_TO_ENUM(AUDIO_DEVICE_OUT_LINE),
82 STRING_TO_ENUM(AUDIO_DEVICE_OUT_HDMI_ARC),
83 STRING_TO_ENUM(AUDIO_DEVICE_OUT_SPDIF),
84 STRING_TO_ENUM(AUDIO_DEVICE_OUT_FM),
Eric Laurent3a4311c2014-03-17 12:00:47 -070085 STRING_TO_ENUM(AUDIO_DEVICE_IN_BUILTIN_MIC),
86 STRING_TO_ENUM(AUDIO_DEVICE_IN_BLUETOOTH_SCO_HEADSET),
87 STRING_TO_ENUM(AUDIO_DEVICE_IN_ALL_SCO),
88 STRING_TO_ENUM(AUDIO_DEVICE_IN_WIRED_HEADSET),
89 STRING_TO_ENUM(AUDIO_DEVICE_IN_AUX_DIGITAL),
Eric Laurent1b776232014-05-19 17:26:41 -070090 STRING_TO_ENUM(AUDIO_DEVICE_IN_HDMI),
Eric Laurent3a4311c2014-03-17 12:00:47 -070091 STRING_TO_ENUM(AUDIO_DEVICE_IN_VOICE_CALL),
Eric Laurent1b776232014-05-19 17:26:41 -070092 STRING_TO_ENUM(AUDIO_DEVICE_IN_TELEPHONY_RX),
Eric Laurent3a4311c2014-03-17 12:00:47 -070093 STRING_TO_ENUM(AUDIO_DEVICE_IN_BACK_MIC),
94 STRING_TO_ENUM(AUDIO_DEVICE_IN_REMOTE_SUBMIX),
95 STRING_TO_ENUM(AUDIO_DEVICE_IN_ANLG_DOCK_HEADSET),
96 STRING_TO_ENUM(AUDIO_DEVICE_IN_DGTL_DOCK_HEADSET),
97 STRING_TO_ENUM(AUDIO_DEVICE_IN_USB_ACCESSORY),
Eric Laurentd4692962014-05-05 18:13:44 -070098 STRING_TO_ENUM(AUDIO_DEVICE_IN_USB_DEVICE),
Eric Laurent1b776232014-05-19 17:26:41 -070099 STRING_TO_ENUM(AUDIO_DEVICE_IN_FM_TUNER),
100 STRING_TO_ENUM(AUDIO_DEVICE_IN_TV_TUNER),
101 STRING_TO_ENUM(AUDIO_DEVICE_IN_LINE),
102 STRING_TO_ENUM(AUDIO_DEVICE_IN_SPDIF),
Mike Lockwood41b0e242014-05-13 15:23:35 -0700103 STRING_TO_ENUM(AUDIO_DEVICE_IN_BLUETOOTH_A2DP),
Eric Laurent3a4311c2014-03-17 12:00:47 -0700104};
105
106const StringToEnum sFlagNameToEnumTable[] = {
107 STRING_TO_ENUM(AUDIO_OUTPUT_FLAG_DIRECT),
108 STRING_TO_ENUM(AUDIO_OUTPUT_FLAG_PRIMARY),
109 STRING_TO_ENUM(AUDIO_OUTPUT_FLAG_FAST),
110 STRING_TO_ENUM(AUDIO_OUTPUT_FLAG_DEEP_BUFFER),
111 STRING_TO_ENUM(AUDIO_OUTPUT_FLAG_COMPRESS_OFFLOAD),
112 STRING_TO_ENUM(AUDIO_OUTPUT_FLAG_NON_BLOCKING),
113};
114
115const StringToEnum sFormatNameToEnumTable[] = {
116 STRING_TO_ENUM(AUDIO_FORMAT_PCM_16_BIT),
117 STRING_TO_ENUM(AUDIO_FORMAT_PCM_8_BIT),
118 STRING_TO_ENUM(AUDIO_FORMAT_PCM_32_BIT),
119 STRING_TO_ENUM(AUDIO_FORMAT_PCM_8_24_BIT),
120 STRING_TO_ENUM(AUDIO_FORMAT_PCM_FLOAT),
121 STRING_TO_ENUM(AUDIO_FORMAT_PCM_24_BIT_PACKED),
122 STRING_TO_ENUM(AUDIO_FORMAT_MP3),
123 STRING_TO_ENUM(AUDIO_FORMAT_AAC),
124 STRING_TO_ENUM(AUDIO_FORMAT_VORBIS),
125};
126
127const StringToEnum sOutChannelsNameToEnumTable[] = {
128 STRING_TO_ENUM(AUDIO_CHANNEL_OUT_MONO),
129 STRING_TO_ENUM(AUDIO_CHANNEL_OUT_STEREO),
130 STRING_TO_ENUM(AUDIO_CHANNEL_OUT_5POINT1),
131 STRING_TO_ENUM(AUDIO_CHANNEL_OUT_7POINT1),
132};
133
134const StringToEnum sInChannelsNameToEnumTable[] = {
135 STRING_TO_ENUM(AUDIO_CHANNEL_IN_MONO),
136 STRING_TO_ENUM(AUDIO_CHANNEL_IN_STEREO),
137 STRING_TO_ENUM(AUDIO_CHANNEL_IN_FRONT_BACK),
138};
139
140
141uint32_t AudioPolicyManager::stringToEnum(const struct StringToEnum *table,
142 size_t size,
143 const char *name)
144{
145 for (size_t i = 0; i < size; i++) {
146 if (strcmp(table[i].name, name) == 0) {
147 ALOGV("stringToEnum() found %s", table[i].name);
148 return table[i].value;
149 }
150 }
151 return 0;
152}
153
154const char *AudioPolicyManager::enumToString(const struct StringToEnum *table,
155 size_t size,
156 uint32_t value)
157{
158 for (size_t i = 0; i < size; i++) {
159 if (table[i].value == value) {
160 return table[i].name;
161 }
162 }
163 return "";
164}
165
166bool AudioPolicyManager::stringToBool(const char *value)
167{
168 return ((strcasecmp("true", value) == 0) || (strcmp("1", value) == 0));
169}
170
171
172// ----------------------------------------------------------------------------
Eric Laurente552edb2014-03-10 17:42:56 -0700173// AudioPolicyInterface implementation
174// ----------------------------------------------------------------------------
175
176
Eric Laurente0720872014-03-11 09:30:41 -0700177status_t AudioPolicyManager::setDeviceConnectionState(audio_devices_t device,
Eric Laurent3b73df72014-03-11 09:06:29 -0700178 audio_policy_dev_state_t state,
Eric Laurente552edb2014-03-10 17:42:56 -0700179 const char *device_address)
180{
Eric Laurent3a4311c2014-03-17 12:00:47 -0700181 String8 address = String8(device_address);
Eric Laurente552edb2014-03-10 17:42:56 -0700182
183 ALOGV("setDeviceConnectionState() device: %x, state %d, address %s", device, state, device_address);
184
185 // connect/disconnect only 1 device at a time
186 if (!audio_is_output_device(device) && !audio_is_input_device(device)) return BAD_VALUE;
187
Eric Laurente552edb2014-03-10 17:42:56 -0700188 // handle output devices
189 if (audio_is_output_device(device)) {
Eric Laurentd4692962014-05-05 18:13:44 -0700190 SortedVector <audio_io_handle_t> outputs;
191
Eric Laurent3a4311c2014-03-17 12:00:47 -0700192 sp<DeviceDescriptor> devDesc = new DeviceDescriptor(device,
193 address,
Eric Laurent2f8a36f2014-03-26 19:05:55 -0700194 0);
Eric Laurent3a4311c2014-03-17 12:00:47 -0700195 ssize_t index = mAvailableOutputDevices.indexOf(devDesc);
196
Eric Laurente552edb2014-03-10 17:42:56 -0700197 // save a copy of the opened output descriptors before any output is opened or closed
198 // by checkOutputsForDevice(). This will be needed by checkOutputForAllStrategies()
199 mPreviousOutputs = mOutputs;
Eric Laurente552edb2014-03-10 17:42:56 -0700200 switch (state)
201 {
202 // handle output device connection
Eric Laurent3b73df72014-03-11 09:06:29 -0700203 case AUDIO_POLICY_DEVICE_STATE_AVAILABLE:
Eric Laurent3a4311c2014-03-17 12:00:47 -0700204 if (index >= 0) {
Eric Laurente552edb2014-03-10 17:42:56 -0700205 ALOGW("setDeviceConnectionState() device already connected: %x", device);
206 return INVALID_OPERATION;
207 }
208 ALOGV("setDeviceConnectionState() connecting device %x", device);
209
Eric Laurent3a4311c2014-03-17 12:00:47 -0700210 if (checkOutputsForDevice(device, state, outputs, address) != NO_ERROR) {
Eric Laurente552edb2014-03-10 17:42:56 -0700211 return INVALID_OPERATION;
212 }
Eric Laurentd4692962014-05-05 18:13:44 -0700213 ALOGV("setDeviceConnectionState() checkOutputsForDevice() returned %zu outputs",
Eric Laurente552edb2014-03-10 17:42:56 -0700214 outputs.size());
215 // register new device as available
Eric Laurent3a4311c2014-03-17 12:00:47 -0700216 index = mAvailableOutputDevices.add(devDesc);
217 if (index >= 0) {
218 mAvailableOutputDevices[index]->mId = nextUniqueId();
219 } else {
220 return NO_MEMORY;
Eric Laurente552edb2014-03-10 17:42:56 -0700221 }
222
223 break;
224 // handle output device disconnection
Eric Laurent3b73df72014-03-11 09:06:29 -0700225 case AUDIO_POLICY_DEVICE_STATE_UNAVAILABLE: {
Eric Laurent3a4311c2014-03-17 12:00:47 -0700226 if (index < 0) {
Eric Laurente552edb2014-03-10 17:42:56 -0700227 ALOGW("setDeviceConnectionState() device not connected: %x", device);
228 return INVALID_OPERATION;
229 }
230
231 ALOGV("setDeviceConnectionState() disconnecting device %x", device);
232 // remove device from available output devices
Eric Laurent3a4311c2014-03-17 12:00:47 -0700233 mAvailableOutputDevices.remove(devDesc);
Eric Laurente552edb2014-03-10 17:42:56 -0700234
Eric Laurent3a4311c2014-03-17 12:00:47 -0700235 checkOutputsForDevice(device, state, outputs, address);
Eric Laurente552edb2014-03-10 17:42:56 -0700236 // not currently handling multiple simultaneous submixes: ignoring remote submix
237 // case and address
238 } break;
239
240 default:
241 ALOGE("setDeviceConnectionState() invalid state: %x", state);
242 return BAD_VALUE;
243 }
244
Eric Laurent3a4311c2014-03-17 12:00:47 -0700245 // checkA2dpSuspend must run before checkOutputForAllStrategies so that A2DP
246 // output is suspended before any tracks are moved to it
Eric Laurente552edb2014-03-10 17:42:56 -0700247 checkA2dpSuspend();
248 checkOutputForAllStrategies();
249 // outputs must be closed after checkOutputForAllStrategies() is executed
250 if (!outputs.isEmpty()) {
251 for (size_t i = 0; i < outputs.size(); i++) {
252 AudioOutputDescriptor *desc = mOutputs.valueFor(outputs[i]);
253 // close unused outputs after device disconnection or direct outputs that have been
254 // opened by checkOutputsForDevice() to query dynamic parameters
Eric Laurent3b73df72014-03-11 09:06:29 -0700255 if ((state == AUDIO_POLICY_DEVICE_STATE_UNAVAILABLE) ||
Eric Laurente552edb2014-03-10 17:42:56 -0700256 (((desc->mFlags & AUDIO_OUTPUT_FLAG_DIRECT) != 0) &&
257 (desc->mDirectOpenCount == 0))) {
258 closeOutput(outputs[i]);
259 }
260 }
Eric Laurent3a4311c2014-03-17 12:00:47 -0700261 // check again after closing A2DP output to reset mA2dpSuspended if needed
262 checkA2dpSuspend();
Eric Laurente552edb2014-03-10 17:42:56 -0700263 }
264
265 updateDevicesAndOutputs();
266 for (size_t i = 0; i < mOutputs.size(); i++) {
267 // do not force device change on duplicated output because if device is 0, it will
268 // also force a device 0 for the two outputs it is duplicated to which may override
269 // a valid device selection on those outputs.
270 setOutputDevice(mOutputs.keyAt(i),
271 getNewDevice(mOutputs.keyAt(i), true /*fromCache*/),
272 !mOutputs.valueAt(i)->isDuplicated(),
273 0);
274 }
275
276 if (device == AUDIO_DEVICE_OUT_WIRED_HEADSET) {
277 device = AUDIO_DEVICE_IN_WIRED_HEADSET;
278 } else if (device == AUDIO_DEVICE_OUT_BLUETOOTH_SCO ||
279 device == AUDIO_DEVICE_OUT_BLUETOOTH_SCO_HEADSET ||
280 device == AUDIO_DEVICE_OUT_BLUETOOTH_SCO_CARKIT) {
281 device = AUDIO_DEVICE_IN_BLUETOOTH_SCO_HEADSET;
282 } else {
283 return NO_ERROR;
284 }
Eric Laurentd4692962014-05-05 18:13:44 -0700285 } // end if is output device
286
Eric Laurente552edb2014-03-10 17:42:56 -0700287 // handle input devices
288 if (audio_is_input_device(device)) {
Eric Laurentd4692962014-05-05 18:13:44 -0700289 SortedVector <audio_io_handle_t> inputs;
290
Eric Laurent3a4311c2014-03-17 12:00:47 -0700291 sp<DeviceDescriptor> devDesc = new DeviceDescriptor(device,
292 address,
Eric Laurent2f8a36f2014-03-26 19:05:55 -0700293 0);
Eric Laurente552edb2014-03-10 17:42:56 -0700294
Eric Laurent3a4311c2014-03-17 12:00:47 -0700295 ssize_t index = mAvailableInputDevices.indexOf(devDesc);
Eric Laurente552edb2014-03-10 17:42:56 -0700296 switch (state)
297 {
298 // handle input device connection
Eric Laurent3b73df72014-03-11 09:06:29 -0700299 case AUDIO_POLICY_DEVICE_STATE_AVAILABLE: {
Eric Laurent3a4311c2014-03-17 12:00:47 -0700300 if (index >= 0) {
Eric Laurente552edb2014-03-10 17:42:56 -0700301 ALOGW("setDeviceConnectionState() device already connected: %d", device);
302 return INVALID_OPERATION;
303 }
Eric Laurentd4692962014-05-05 18:13:44 -0700304 if (checkInputsForDevice(device, state, inputs, address) != NO_ERROR) {
305 return INVALID_OPERATION;
306 }
307
Eric Laurent3a4311c2014-03-17 12:00:47 -0700308 index = mAvailableInputDevices.add(devDesc);
309 if (index >= 0) {
310 mAvailableInputDevices[index]->mId = nextUniqueId();
311 } else {
312 return NO_MEMORY;
313 }
Eric Laurentd4692962014-05-05 18:13:44 -0700314 } break;
Eric Laurente552edb2014-03-10 17:42:56 -0700315
316 // handle input device disconnection
Eric Laurent3b73df72014-03-11 09:06:29 -0700317 case AUDIO_POLICY_DEVICE_STATE_UNAVAILABLE: {
Eric Laurent3a4311c2014-03-17 12:00:47 -0700318 if (index < 0) {
Eric Laurente552edb2014-03-10 17:42:56 -0700319 ALOGW("setDeviceConnectionState() device not connected: %d", device);
320 return INVALID_OPERATION;
321 }
Eric Laurentd4692962014-05-05 18:13:44 -0700322 checkInputsForDevice(device, state, inputs, address);
Eric Laurent3a4311c2014-03-17 12:00:47 -0700323 mAvailableInputDevices.remove(devDesc);
Eric Laurentd4692962014-05-05 18:13:44 -0700324 } break;
Eric Laurente552edb2014-03-10 17:42:56 -0700325
326 default:
327 ALOGE("setDeviceConnectionState() invalid state: %x", state);
328 return BAD_VALUE;
329 }
330
Eric Laurentd4692962014-05-05 18:13:44 -0700331 closeAllInputs();
Eric Laurente552edb2014-03-10 17:42:56 -0700332
333 return NO_ERROR;
Eric Laurentd4692962014-05-05 18:13:44 -0700334 } // end if is input device
Eric Laurente552edb2014-03-10 17:42:56 -0700335
336 ALOGW("setDeviceConnectionState() invalid device: %x", device);
337 return BAD_VALUE;
338}
339
Eric Laurente0720872014-03-11 09:30:41 -0700340audio_policy_dev_state_t AudioPolicyManager::getDeviceConnectionState(audio_devices_t device,
Eric Laurente552edb2014-03-10 17:42:56 -0700341 const char *device_address)
342{
Eric Laurent3b73df72014-03-11 09:06:29 -0700343 audio_policy_dev_state_t state = AUDIO_POLICY_DEVICE_STATE_UNAVAILABLE;
Eric Laurente552edb2014-03-10 17:42:56 -0700344 String8 address = String8(device_address);
Eric Laurent3a4311c2014-03-17 12:00:47 -0700345 sp<DeviceDescriptor> devDesc = new DeviceDescriptor(device,
346 String8(device_address),
Eric Laurent2f8a36f2014-03-26 19:05:55 -0700347 0);
Eric Laurent3a4311c2014-03-17 12:00:47 -0700348 ssize_t index;
349 DeviceVector *deviceVector;
350
Eric Laurente552edb2014-03-10 17:42:56 -0700351 if (audio_is_output_device(device)) {
Eric Laurent3a4311c2014-03-17 12:00:47 -0700352 deviceVector = &mAvailableOutputDevices;
Eric Laurente552edb2014-03-10 17:42:56 -0700353 } else if (audio_is_input_device(device)) {
Eric Laurent3a4311c2014-03-17 12:00:47 -0700354 deviceVector = &mAvailableInputDevices;
355 } else {
356 ALOGW("getDeviceConnectionState() invalid device type %08x", device);
357 return AUDIO_POLICY_DEVICE_STATE_UNAVAILABLE;
Eric Laurente552edb2014-03-10 17:42:56 -0700358 }
359
Eric Laurent3a4311c2014-03-17 12:00:47 -0700360 index = deviceVector->indexOf(devDesc);
361 if (index >= 0) {
362 return AUDIO_POLICY_DEVICE_STATE_AVAILABLE;
363 } else {
364 return AUDIO_POLICY_DEVICE_STATE_UNAVAILABLE;
365 }
Eric Laurente552edb2014-03-10 17:42:56 -0700366}
367
Eric Laurente0720872014-03-11 09:30:41 -0700368void AudioPolicyManager::setPhoneState(audio_mode_t state)
Eric Laurente552edb2014-03-10 17:42:56 -0700369{
370 ALOGV("setPhoneState() state %d", state);
371 audio_devices_t newDevice = AUDIO_DEVICE_NONE;
Eric Laurent3b73df72014-03-11 09:06:29 -0700372 if (state < 0 || state >= AUDIO_MODE_CNT) {
Eric Laurente552edb2014-03-10 17:42:56 -0700373 ALOGW("setPhoneState() invalid state %d", state);
374 return;
375 }
376
377 if (state == mPhoneState ) {
378 ALOGW("setPhoneState() setting same state %d", state);
379 return;
380 }
381
382 // if leaving call state, handle special case of active streams
383 // pertaining to sonification strategy see handleIncallSonification()
384 if (isInCall()) {
385 ALOGV("setPhoneState() in call state management: new state is %d", state);
Eric Laurent3b73df72014-03-11 09:06:29 -0700386 for (int stream = 0; stream < AUDIO_STREAM_CNT; stream++) {
387 handleIncallSonification((audio_stream_type_t)stream, false, true);
Eric Laurente552edb2014-03-10 17:42:56 -0700388 }
389 }
390
391 // store previous phone state for management of sonification strategy below
392 int oldState = mPhoneState;
393 mPhoneState = state;
394 bool force = false;
395
396 // are we entering or starting a call
397 if (!isStateInCall(oldState) && isStateInCall(state)) {
398 ALOGV(" Entering call in setPhoneState()");
399 // force routing command to audio hardware when starting a call
400 // even if no device change is needed
401 force = true;
402 for (int j = 0; j < DEVICE_CATEGORY_CNT; j++) {
403 mStreams[AUDIO_STREAM_DTMF].mVolumeCurve[j] =
404 sVolumeProfiles[AUDIO_STREAM_VOICE_CALL][j];
405 }
406 } else if (isStateInCall(oldState) && !isStateInCall(state)) {
407 ALOGV(" Exiting call in setPhoneState()");
408 // force routing command to audio hardware when exiting a call
409 // even if no device change is needed
410 force = true;
411 for (int j = 0; j < DEVICE_CATEGORY_CNT; j++) {
412 mStreams[AUDIO_STREAM_DTMF].mVolumeCurve[j] =
413 sVolumeProfiles[AUDIO_STREAM_DTMF][j];
414 }
415 } else if (isStateInCall(state) && (state != oldState)) {
416 ALOGV(" Switching between telephony and VoIP in setPhoneState()");
417 // force routing command to audio hardware when switching between telephony and VoIP
418 // even if no device change is needed
419 force = true;
420 }
421
422 // check for device and output changes triggered by new phone state
423 newDevice = getNewDevice(mPrimaryOutput, false /*fromCache*/);
424 checkA2dpSuspend();
425 checkOutputForAllStrategies();
426 updateDevicesAndOutputs();
427
428 AudioOutputDescriptor *hwOutputDesc = mOutputs.valueFor(mPrimaryOutput);
429
430 // force routing command to audio hardware when ending call
431 // even if no device change is needed
432 if (isStateInCall(oldState) && newDevice == AUDIO_DEVICE_NONE) {
433 newDevice = hwOutputDesc->device();
434 }
435
436 int delayMs = 0;
437 if (isStateInCall(state)) {
438 nsecs_t sysTime = systemTime();
439 for (size_t i = 0; i < mOutputs.size(); i++) {
440 AudioOutputDescriptor *desc = mOutputs.valueAt(i);
441 // mute media and sonification strategies and delay device switch by the largest
442 // latency of any output where either strategy is active.
443 // This avoid sending the ring tone or music tail into the earpiece or headset.
444 if ((desc->isStrategyActive(STRATEGY_MEDIA,
445 SONIFICATION_HEADSET_MUSIC_DELAY,
446 sysTime) ||
447 desc->isStrategyActive(STRATEGY_SONIFICATION,
448 SONIFICATION_HEADSET_MUSIC_DELAY,
449 sysTime)) &&
450 (delayMs < (int)desc->mLatency*2)) {
451 delayMs = desc->mLatency*2;
452 }
453 setStrategyMute(STRATEGY_MEDIA, true, mOutputs.keyAt(i));
454 setStrategyMute(STRATEGY_MEDIA, false, mOutputs.keyAt(i), MUTE_TIME_MS,
455 getDeviceForStrategy(STRATEGY_MEDIA, true /*fromCache*/));
456 setStrategyMute(STRATEGY_SONIFICATION, true, mOutputs.keyAt(i));
457 setStrategyMute(STRATEGY_SONIFICATION, false, mOutputs.keyAt(i), MUTE_TIME_MS,
458 getDeviceForStrategy(STRATEGY_SONIFICATION, true /*fromCache*/));
459 }
460 }
461
462 // change routing is necessary
463 setOutputDevice(mPrimaryOutput, newDevice, force, delayMs);
464
465 // if entering in call state, handle special case of active streams
466 // pertaining to sonification strategy see handleIncallSonification()
467 if (isStateInCall(state)) {
468 ALOGV("setPhoneState() in call state management: new state is %d", state);
Eric Laurent3b73df72014-03-11 09:06:29 -0700469 for (int stream = 0; stream < AUDIO_STREAM_CNT; stream++) {
470 handleIncallSonification((audio_stream_type_t)stream, true, true);
Eric Laurente552edb2014-03-10 17:42:56 -0700471 }
472 }
473
474 // Flag that ringtone volume must be limited to music volume until we exit MODE_RINGTONE
Eric Laurent3b73df72014-03-11 09:06:29 -0700475 if (state == AUDIO_MODE_RINGTONE &&
476 isStreamActive(AUDIO_STREAM_MUSIC, SONIFICATION_HEADSET_MUSIC_DELAY)) {
Eric Laurente552edb2014-03-10 17:42:56 -0700477 mLimitRingtoneVolume = true;
478 } else {
479 mLimitRingtoneVolume = false;
480 }
481}
482
Eric Laurente0720872014-03-11 09:30:41 -0700483void AudioPolicyManager::setForceUse(audio_policy_force_use_t usage,
Eric Laurent3b73df72014-03-11 09:06:29 -0700484 audio_policy_forced_cfg_t config)
Eric Laurente552edb2014-03-10 17:42:56 -0700485{
486 ALOGV("setForceUse() usage %d, config %d, mPhoneState %d", usage, config, mPhoneState);
487
488 bool forceVolumeReeval = false;
489 switch(usage) {
Eric Laurent3b73df72014-03-11 09:06:29 -0700490 case AUDIO_POLICY_FORCE_FOR_COMMUNICATION:
491 if (config != AUDIO_POLICY_FORCE_SPEAKER && config != AUDIO_POLICY_FORCE_BT_SCO &&
492 config != AUDIO_POLICY_FORCE_NONE) {
Eric Laurente552edb2014-03-10 17:42:56 -0700493 ALOGW("setForceUse() invalid config %d for FOR_COMMUNICATION", config);
494 return;
495 }
496 forceVolumeReeval = true;
497 mForceUse[usage] = config;
498 break;
Eric Laurent3b73df72014-03-11 09:06:29 -0700499 case AUDIO_POLICY_FORCE_FOR_MEDIA:
500 if (config != AUDIO_POLICY_FORCE_HEADPHONES && config != AUDIO_POLICY_FORCE_BT_A2DP &&
501 config != AUDIO_POLICY_FORCE_WIRED_ACCESSORY &&
502 config != AUDIO_POLICY_FORCE_ANALOG_DOCK &&
503 config != AUDIO_POLICY_FORCE_DIGITAL_DOCK && config != AUDIO_POLICY_FORCE_NONE &&
504 config != AUDIO_POLICY_FORCE_NO_BT_A2DP) {
Eric Laurente552edb2014-03-10 17:42:56 -0700505 ALOGW("setForceUse() invalid config %d for FOR_MEDIA", config);
506 return;
507 }
508 mForceUse[usage] = config;
509 break;
Eric Laurent3b73df72014-03-11 09:06:29 -0700510 case AUDIO_POLICY_FORCE_FOR_RECORD:
511 if (config != AUDIO_POLICY_FORCE_BT_SCO && config != AUDIO_POLICY_FORCE_WIRED_ACCESSORY &&
512 config != AUDIO_POLICY_FORCE_NONE) {
Eric Laurente552edb2014-03-10 17:42:56 -0700513 ALOGW("setForceUse() invalid config %d for FOR_RECORD", config);
514 return;
515 }
516 mForceUse[usage] = config;
517 break;
Eric Laurent3b73df72014-03-11 09:06:29 -0700518 case AUDIO_POLICY_FORCE_FOR_DOCK:
519 if (config != AUDIO_POLICY_FORCE_NONE && config != AUDIO_POLICY_FORCE_BT_CAR_DOCK &&
520 config != AUDIO_POLICY_FORCE_BT_DESK_DOCK &&
521 config != AUDIO_POLICY_FORCE_WIRED_ACCESSORY &&
522 config != AUDIO_POLICY_FORCE_ANALOG_DOCK &&
523 config != AUDIO_POLICY_FORCE_DIGITAL_DOCK) {
Eric Laurente552edb2014-03-10 17:42:56 -0700524 ALOGW("setForceUse() invalid config %d for FOR_DOCK", config);
525 }
526 forceVolumeReeval = true;
527 mForceUse[usage] = config;
528 break;
Eric Laurent3b73df72014-03-11 09:06:29 -0700529 case AUDIO_POLICY_FORCE_FOR_SYSTEM:
530 if (config != AUDIO_POLICY_FORCE_NONE &&
531 config != AUDIO_POLICY_FORCE_SYSTEM_ENFORCED) {
Eric Laurente552edb2014-03-10 17:42:56 -0700532 ALOGW("setForceUse() invalid config %d for FOR_SYSTEM", config);
533 }
534 forceVolumeReeval = true;
535 mForceUse[usage] = config;
536 break;
537 default:
538 ALOGW("setForceUse() invalid usage %d", usage);
539 break;
540 }
541
542 // check for device and output changes triggered by new force usage
543 checkA2dpSuspend();
544 checkOutputForAllStrategies();
545 updateDevicesAndOutputs();
546 for (size_t i = 0; i < mOutputs.size(); i++) {
547 audio_io_handle_t output = mOutputs.keyAt(i);
548 audio_devices_t newDevice = getNewDevice(output, true /*fromCache*/);
549 setOutputDevice(output, newDevice, (newDevice != AUDIO_DEVICE_NONE));
550 if (forceVolumeReeval && (newDevice != AUDIO_DEVICE_NONE)) {
551 applyStreamVolumes(output, newDevice, 0, true);
552 }
553 }
554
555 audio_io_handle_t activeInput = getActiveInput();
556 if (activeInput != 0) {
557 AudioInputDescriptor *inputDesc = mInputs.valueFor(activeInput);
558 audio_devices_t newDevice = getDeviceForInputSource(inputDesc->mInputSource);
559 if ((newDevice != AUDIO_DEVICE_NONE) && (newDevice != inputDesc->mDevice)) {
560 ALOGV("setForceUse() changing device from %x to %x for input %d",
561 inputDesc->mDevice, newDevice, activeInput);
562 inputDesc->mDevice = newDevice;
563 AudioParameter param = AudioParameter();
564 param.addInt(String8(AudioParameter::keyRouting), (int)newDevice);
565 mpClientInterface->setParameters(activeInput, param.toString());
566 }
567 }
568
569}
570
Eric Laurente0720872014-03-11 09:30:41 -0700571audio_policy_forced_cfg_t AudioPolicyManager::getForceUse(audio_policy_force_use_t usage)
Eric Laurente552edb2014-03-10 17:42:56 -0700572{
573 return mForceUse[usage];
574}
575
Eric Laurente0720872014-03-11 09:30:41 -0700576void AudioPolicyManager::setSystemProperty(const char* property, const char* value)
Eric Laurente552edb2014-03-10 17:42:56 -0700577{
578 ALOGV("setSystemProperty() property %s, value %s", property, value);
579}
580
581// Find a direct output profile compatible with the parameters passed, even if the input flags do
582// not explicitly request a direct output
Eric Laurente0720872014-03-11 09:30:41 -0700583AudioPolicyManager::IOProfile *AudioPolicyManager::getProfileForDirectOutput(
Eric Laurente552edb2014-03-10 17:42:56 -0700584 audio_devices_t device,
585 uint32_t samplingRate,
586 audio_format_t format,
587 audio_channel_mask_t channelMask,
588 audio_output_flags_t flags)
589{
590 for (size_t i = 0; i < mHwModules.size(); i++) {
591 if (mHwModules[i]->mHandle == 0) {
592 continue;
593 }
594 for (size_t j = 0; j < mHwModules[i]->mOutputProfiles.size(); j++) {
595 IOProfile *profile = mHwModules[i]->mOutputProfiles[j];
Eric Laurent3a4311c2014-03-17 12:00:47 -0700596 bool found = false;
Eric Laurente552edb2014-03-10 17:42:56 -0700597 if (flags & AUDIO_OUTPUT_FLAG_COMPRESS_OFFLOAD) {
598 if (profile->isCompatibleProfile(device, samplingRate, format,
599 channelMask,
600 AUDIO_OUTPUT_FLAG_COMPRESS_OFFLOAD)) {
Eric Laurent3a4311c2014-03-17 12:00:47 -0700601 found = true;
Eric Laurente552edb2014-03-10 17:42:56 -0700602 }
603 } else {
604 if (profile->isCompatibleProfile(device, samplingRate, format,
605 channelMask,
606 AUDIO_OUTPUT_FLAG_DIRECT)) {
Eric Laurent3a4311c2014-03-17 12:00:47 -0700607 found = true;
Eric Laurente552edb2014-03-10 17:42:56 -0700608 }
609 }
Eric Laurent3a4311c2014-03-17 12:00:47 -0700610 if (found && (mAvailableOutputDevices.types() & profile->mSupportedDevices.types())) {
611 return profile;
612 }
Eric Laurente552edb2014-03-10 17:42:56 -0700613 }
614 }
615 return 0;
616}
617
Eric Laurente0720872014-03-11 09:30:41 -0700618audio_io_handle_t AudioPolicyManager::getOutput(audio_stream_type_t stream,
Eric Laurente552edb2014-03-10 17:42:56 -0700619 uint32_t samplingRate,
620 audio_format_t format,
621 audio_channel_mask_t channelMask,
Eric Laurent3b73df72014-03-11 09:06:29 -0700622 audio_output_flags_t flags,
Eric Laurente552edb2014-03-10 17:42:56 -0700623 const audio_offload_info_t *offloadInfo)
624{
625 audio_io_handle_t output = 0;
626 uint32_t latency = 0;
Eric Laurent3b73df72014-03-11 09:06:29 -0700627 routing_strategy strategy = getStrategy(stream);
Eric Laurente552edb2014-03-10 17:42:56 -0700628 audio_devices_t device = getDeviceForStrategy(strategy, false /*fromCache*/);
629 ALOGV("getOutput() device %d, stream %d, samplingRate %d, format %x, channelMask %x, flags %x",
630 device, stream, samplingRate, format, channelMask, flags);
631
632#ifdef AUDIO_POLICY_TEST
633 if (mCurOutput != 0) {
634 ALOGV("getOutput() test output mCurOutput %d, samplingRate %d, format %d, channelMask %x, mDirectOutput %d",
635 mCurOutput, mTestSamplingRate, mTestFormat, mTestChannels, mDirectOutput);
636
637 if (mTestOutputs[mCurOutput] == 0) {
638 ALOGV("getOutput() opening test output");
639 AudioOutputDescriptor *outputDesc = new AudioOutputDescriptor(NULL);
640 outputDesc->mDevice = mTestDevice;
641 outputDesc->mSamplingRate = mTestSamplingRate;
642 outputDesc->mFormat = mTestFormat;
643 outputDesc->mChannelMask = mTestChannels;
644 outputDesc->mLatency = mTestLatencyMs;
Eric Laurent3b73df72014-03-11 09:06:29 -0700645 outputDesc->mFlags =
646 (audio_output_flags_t)(mDirectOutput ? AUDIO_OUTPUT_FLAG_DIRECT : 0);
Eric Laurente552edb2014-03-10 17:42:56 -0700647 outputDesc->mRefCount[stream] = 0;
648 mTestOutputs[mCurOutput] = mpClientInterface->openOutput(0, &outputDesc->mDevice,
649 &outputDesc->mSamplingRate,
650 &outputDesc->mFormat,
651 &outputDesc->mChannelMask,
652 &outputDesc->mLatency,
653 outputDesc->mFlags,
654 offloadInfo);
655 if (mTestOutputs[mCurOutput]) {
656 AudioParameter outputCmd = AudioParameter();
657 outputCmd.addInt(String8("set_id"),mCurOutput);
658 mpClientInterface->setParameters(mTestOutputs[mCurOutput],outputCmd.toString());
659 addOutput(mTestOutputs[mCurOutput], outputDesc);
660 }
661 }
662 return mTestOutputs[mCurOutput];
663 }
664#endif //AUDIO_POLICY_TEST
665
666 // open a direct output if required by specified parameters
667 //force direct flag if offload flag is set: offloading implies a direct output stream
668 // and all common behaviors are driven by checking only the direct flag
669 // this should normally be set appropriately in the policy configuration file
670 if ((flags & AUDIO_OUTPUT_FLAG_COMPRESS_OFFLOAD) != 0) {
Eric Laurent3b73df72014-03-11 09:06:29 -0700671 flags = (audio_output_flags_t)(flags | AUDIO_OUTPUT_FLAG_DIRECT);
Eric Laurente552edb2014-03-10 17:42:56 -0700672 }
673
674 // Do not allow offloading if one non offloadable effect is enabled. This prevents from
675 // creating an offloaded track and tearing it down immediately after start when audioflinger
676 // detects there is an active non offloadable effect.
677 // FIXME: We should check the audio session here but we do not have it in this context.
678 // This may prevent offloading in rare situations where effects are left active by apps
679 // in the background.
680 IOProfile *profile = NULL;
681 if (((flags & AUDIO_OUTPUT_FLAG_COMPRESS_OFFLOAD) == 0) ||
682 !isNonOffloadableEffectEnabled()) {
683 profile = getProfileForDirectOutput(device,
684 samplingRate,
685 format,
686 channelMask,
687 (audio_output_flags_t)flags);
688 }
689
690 if (profile != NULL) {
691 AudioOutputDescriptor *outputDesc = NULL;
692
693 for (size_t i = 0; i < mOutputs.size(); i++) {
694 AudioOutputDescriptor *desc = mOutputs.valueAt(i);
695 if (!desc->isDuplicated() && (profile == desc->mProfile)) {
696 outputDesc = desc;
697 // reuse direct output if currently open and configured with same parameters
698 if ((samplingRate == outputDesc->mSamplingRate) &&
699 (format == outputDesc->mFormat) &&
700 (channelMask == outputDesc->mChannelMask)) {
701 outputDesc->mDirectOpenCount++;
702 ALOGV("getOutput() reusing direct output %d", mOutputs.keyAt(i));
703 return mOutputs.keyAt(i);
704 }
705 }
706 }
707 // close direct output if currently open and configured with different parameters
708 if (outputDesc != NULL) {
709 closeOutput(outputDesc->mId);
710 }
711 outputDesc = new AudioOutputDescriptor(profile);
712 outputDesc->mDevice = device;
713 outputDesc->mSamplingRate = samplingRate;
714 outputDesc->mFormat = format;
715 outputDesc->mChannelMask = channelMask;
716 outputDesc->mLatency = 0;
717 outputDesc->mFlags =(audio_output_flags_t) (outputDesc->mFlags | flags);
718 outputDesc->mRefCount[stream] = 0;
719 outputDesc->mStopTime[stream] = 0;
720 outputDesc->mDirectOpenCount = 1;
721 output = mpClientInterface->openOutput(profile->mModule->mHandle,
722 &outputDesc->mDevice,
723 &outputDesc->mSamplingRate,
724 &outputDesc->mFormat,
725 &outputDesc->mChannelMask,
726 &outputDesc->mLatency,
727 outputDesc->mFlags,
728 offloadInfo);
729
730 // only accept an output with the requested parameters
731 if (output == 0 ||
732 (samplingRate != 0 && samplingRate != outputDesc->mSamplingRate) ||
733 (format != AUDIO_FORMAT_DEFAULT && format != outputDesc->mFormat) ||
734 (channelMask != 0 && channelMask != outputDesc->mChannelMask)) {
735 ALOGV("getOutput() failed opening direct output: output %d samplingRate %d %d,"
736 "format %d %d, channelMask %04x %04x", output, samplingRate,
737 outputDesc->mSamplingRate, format, outputDesc->mFormat, channelMask,
738 outputDesc->mChannelMask);
739 if (output != 0) {
740 mpClientInterface->closeOutput(output);
741 }
742 delete outputDesc;
743 return 0;
744 }
745 audio_io_handle_t srcOutput = getOutputForEffect();
746 addOutput(output, outputDesc);
747 audio_io_handle_t dstOutput = getOutputForEffect();
748 if (dstOutput == output) {
749 mpClientInterface->moveEffects(AUDIO_SESSION_OUTPUT_MIX, srcOutput, dstOutput);
750 }
751 mPreviousOutputs = mOutputs;
752 ALOGV("getOutput() returns new direct output %d", output);
753 return output;
754 }
755
756 // ignoring channel mask due to downmix capability in mixer
757
758 // open a non direct output
759
760 // for non direct outputs, only PCM is supported
761 if (audio_is_linear_pcm(format)) {
762 // get which output is suitable for the specified stream. The actual
763 // routing change will happen when startOutput() will be called
764 SortedVector<audio_io_handle_t> outputs = getOutputsForDevice(device, mOutputs);
765
766 output = selectOutput(outputs, flags);
767 }
768 ALOGW_IF((output == 0), "getOutput() could not find output for stream %d, samplingRate %d,"
769 "format %d, channels %x, flags %x", stream, samplingRate, format, channelMask, flags);
770
771 ALOGV("getOutput() returns output %d", output);
772
773 return output;
774}
775
Eric Laurente0720872014-03-11 09:30:41 -0700776audio_io_handle_t AudioPolicyManager::selectOutput(const SortedVector<audio_io_handle_t>& outputs,
Eric Laurent3b73df72014-03-11 09:06:29 -0700777 audio_output_flags_t flags)
Eric Laurente552edb2014-03-10 17:42:56 -0700778{
779 // select one output among several that provide a path to a particular device or set of
780 // devices (the list was previously build by getOutputsForDevice()).
781 // The priority is as follows:
782 // 1: the output with the highest number of requested policy flags
783 // 2: the primary output
784 // 3: the first output in the list
785
786 if (outputs.size() == 0) {
787 return 0;
788 }
789 if (outputs.size() == 1) {
790 return outputs[0];
791 }
792
793 int maxCommonFlags = 0;
794 audio_io_handle_t outputFlags = 0;
795 audio_io_handle_t outputPrimary = 0;
796
797 for (size_t i = 0; i < outputs.size(); i++) {
798 AudioOutputDescriptor *outputDesc = mOutputs.valueFor(outputs[i]);
799 if (!outputDesc->isDuplicated()) {
Eric Laurent3b73df72014-03-11 09:06:29 -0700800 int commonFlags = popcount(outputDesc->mProfile->mFlags & flags);
Eric Laurente552edb2014-03-10 17:42:56 -0700801 if (commonFlags > maxCommonFlags) {
802 outputFlags = outputs[i];
803 maxCommonFlags = commonFlags;
804 ALOGV("selectOutput() commonFlags for output %d, %04x", outputs[i], commonFlags);
805 }
806 if (outputDesc->mProfile->mFlags & AUDIO_OUTPUT_FLAG_PRIMARY) {
807 outputPrimary = outputs[i];
808 }
809 }
810 }
811
812 if (outputFlags != 0) {
813 return outputFlags;
814 }
815 if (outputPrimary != 0) {
816 return outputPrimary;
817 }
818
819 return outputs[0];
820}
821
Eric Laurente0720872014-03-11 09:30:41 -0700822status_t AudioPolicyManager::startOutput(audio_io_handle_t output,
Eric Laurent3b73df72014-03-11 09:06:29 -0700823 audio_stream_type_t stream,
Eric Laurente552edb2014-03-10 17:42:56 -0700824 int session)
825{
826 ALOGV("startOutput() output %d, stream %d, session %d", output, stream, session);
827 ssize_t index = mOutputs.indexOfKey(output);
828 if (index < 0) {
829 ALOGW("startOutput() unknown output %d", output);
830 return BAD_VALUE;
831 }
832
833 AudioOutputDescriptor *outputDesc = mOutputs.valueAt(index);
834
835 // increment usage count for this stream on the requested output:
836 // NOTE that the usage count is the same for duplicated output and hardware output which is
837 // necessary for a correct control of hardware output routing by startOutput() and stopOutput()
838 outputDesc->changeRefCount(stream, 1);
839
840 if (outputDesc->mRefCount[stream] == 1) {
841 audio_devices_t newDevice = getNewDevice(output, false /*fromCache*/);
842 routing_strategy strategy = getStrategy(stream);
843 bool shouldWait = (strategy == STRATEGY_SONIFICATION) ||
844 (strategy == STRATEGY_SONIFICATION_RESPECTFUL);
845 uint32_t waitMs = 0;
846 bool force = false;
847 for (size_t i = 0; i < mOutputs.size(); i++) {
848 AudioOutputDescriptor *desc = mOutputs.valueAt(i);
849 if (desc != outputDesc) {
850 // force a device change if any other output is managed by the same hw
851 // module and has a current device selection that differs from selected device.
852 // In this case, the audio HAL must receive the new device selection so that it can
853 // change the device currently selected by the other active output.
854 if (outputDesc->sharesHwModuleWith(desc) &&
855 desc->device() != newDevice) {
856 force = true;
857 }
858 // wait for audio on other active outputs to be presented when starting
859 // a notification so that audio focus effect can propagate.
860 uint32_t latency = desc->latency();
861 if (shouldWait && desc->isActive(latency * 2) && (waitMs < latency)) {
862 waitMs = latency;
863 }
864 }
865 }
866 uint32_t muteWaitMs = setOutputDevice(output, newDevice, force);
867
868 // handle special case for sonification while in call
869 if (isInCall()) {
870 handleIncallSonification(stream, true, false);
871 }
872
873 // apply volume rules for current stream and device if necessary
874 checkAndSetVolume(stream,
875 mStreams[stream].getVolumeIndex(newDevice),
876 output,
877 newDevice);
878
879 // update the outputs if starting an output with a stream that can affect notification
880 // routing
881 handleNotificationRoutingForStream(stream);
882 if (waitMs > muteWaitMs) {
883 usleep((waitMs - muteWaitMs) * 2 * 1000);
884 }
885 }
886 return NO_ERROR;
887}
888
889
Eric Laurente0720872014-03-11 09:30:41 -0700890status_t AudioPolicyManager::stopOutput(audio_io_handle_t output,
Eric Laurent3b73df72014-03-11 09:06:29 -0700891 audio_stream_type_t stream,
Eric Laurente552edb2014-03-10 17:42:56 -0700892 int session)
893{
894 ALOGV("stopOutput() output %d, stream %d, session %d", output, stream, session);
895 ssize_t index = mOutputs.indexOfKey(output);
896 if (index < 0) {
897 ALOGW("stopOutput() unknown output %d", output);
898 return BAD_VALUE;
899 }
900
901 AudioOutputDescriptor *outputDesc = mOutputs.valueAt(index);
902
903 // handle special case for sonification while in call
904 if (isInCall()) {
905 handleIncallSonification(stream, false, false);
906 }
907
908 if (outputDesc->mRefCount[stream] > 0) {
909 // decrement usage count of this stream on the output
910 outputDesc->changeRefCount(stream, -1);
911 // store time at which the stream was stopped - see isStreamActive()
912 if (outputDesc->mRefCount[stream] == 0) {
913 outputDesc->mStopTime[stream] = systemTime();
914 audio_devices_t newDevice = getNewDevice(output, false /*fromCache*/);
915 // delay the device switch by twice the latency because stopOutput() is executed when
916 // the track stop() command is received and at that time the audio track buffer can
917 // still contain data that needs to be drained. The latency only covers the audio HAL
918 // and kernel buffers. Also the latency does not always include additional delay in the
919 // audio path (audio DSP, CODEC ...)
920 setOutputDevice(output, newDevice, false, outputDesc->mLatency*2);
921
922 // force restoring the device selection on other active outputs if it differs from the
923 // one being selected for this output
924 for (size_t i = 0; i < mOutputs.size(); i++) {
925 audio_io_handle_t curOutput = mOutputs.keyAt(i);
926 AudioOutputDescriptor *desc = mOutputs.valueAt(i);
927 if (curOutput != output &&
928 desc->isActive() &&
929 outputDesc->sharesHwModuleWith(desc) &&
930 (newDevice != desc->device())) {
931 setOutputDevice(curOutput,
932 getNewDevice(curOutput, false /*fromCache*/),
933 true,
934 outputDesc->mLatency*2);
935 }
936 }
937 // update the outputs if stopping one with a stream that can affect notification routing
938 handleNotificationRoutingForStream(stream);
939 }
940 return NO_ERROR;
941 } else {
942 ALOGW("stopOutput() refcount is already 0 for output %d", output);
943 return INVALID_OPERATION;
944 }
945}
946
Eric Laurente0720872014-03-11 09:30:41 -0700947void AudioPolicyManager::releaseOutput(audio_io_handle_t output)
Eric Laurente552edb2014-03-10 17:42:56 -0700948{
949 ALOGV("releaseOutput() %d", output);
950 ssize_t index = mOutputs.indexOfKey(output);
951 if (index < 0) {
952 ALOGW("releaseOutput() releasing unknown output %d", output);
953 return;
954 }
955
956#ifdef AUDIO_POLICY_TEST
957 int testIndex = testOutputIndex(output);
958 if (testIndex != 0) {
959 AudioOutputDescriptor *outputDesc = mOutputs.valueAt(index);
960 if (outputDesc->isActive()) {
961 mpClientInterface->closeOutput(output);
962 delete mOutputs.valueAt(index);
963 mOutputs.removeItem(output);
964 mTestOutputs[testIndex] = 0;
965 }
966 return;
967 }
968#endif //AUDIO_POLICY_TEST
969
970 AudioOutputDescriptor *desc = mOutputs.valueAt(index);
Eric Laurent3b73df72014-03-11 09:06:29 -0700971 if (desc->mFlags & AUDIO_OUTPUT_FLAG_DIRECT) {
Eric Laurente552edb2014-03-10 17:42:56 -0700972 if (desc->mDirectOpenCount <= 0) {
973 ALOGW("releaseOutput() invalid open count %d for output %d",
974 desc->mDirectOpenCount, output);
975 return;
976 }
977 if (--desc->mDirectOpenCount == 0) {
978 closeOutput(output);
979 // If effects where present on the output, audioflinger moved them to the primary
980 // output by default: move them back to the appropriate output.
981 audio_io_handle_t dstOutput = getOutputForEffect();
982 if (dstOutput != mPrimaryOutput) {
983 mpClientInterface->moveEffects(AUDIO_SESSION_OUTPUT_MIX, mPrimaryOutput, dstOutput);
984 }
985 }
986 }
987}
988
989
Eric Laurente0720872014-03-11 09:30:41 -0700990audio_io_handle_t AudioPolicyManager::getInput(audio_source_t inputSource,
Eric Laurente552edb2014-03-10 17:42:56 -0700991 uint32_t samplingRate,
992 audio_format_t format,
993 audio_channel_mask_t channelMask,
Eric Laurent3b73df72014-03-11 09:06:29 -0700994 audio_in_acoustics_t acoustics)
Eric Laurente552edb2014-03-10 17:42:56 -0700995{
996 audio_io_handle_t input = 0;
997 audio_devices_t device = getDeviceForInputSource(inputSource);
998
999 ALOGV("getInput() inputSource %d, samplingRate %d, format %d, channelMask %x, acoustics %x",
1000 inputSource, samplingRate, format, channelMask, acoustics);
1001
1002 if (device == AUDIO_DEVICE_NONE) {
1003 ALOGW("getInput() could not find device for inputSource %d", inputSource);
1004 return 0;
1005 }
1006
1007 // adapt channel selection to input source
1008 switch(inputSource) {
1009 case AUDIO_SOURCE_VOICE_UPLINK:
1010 channelMask = AUDIO_CHANNEL_IN_VOICE_UPLINK;
1011 break;
1012 case AUDIO_SOURCE_VOICE_DOWNLINK:
1013 channelMask = AUDIO_CHANNEL_IN_VOICE_DNLINK;
1014 break;
1015 case AUDIO_SOURCE_VOICE_CALL:
1016 channelMask = AUDIO_CHANNEL_IN_VOICE_UPLINK | AUDIO_CHANNEL_IN_VOICE_DNLINK;
1017 break;
1018 default:
1019 break;
1020 }
1021
1022 IOProfile *profile = getInputProfile(device,
1023 samplingRate,
1024 format,
1025 channelMask);
1026 if (profile == NULL) {
1027 ALOGW("getInput() could not find profile for device %04x, samplingRate %d, format %d, "
1028 "channelMask %04x",
1029 device, samplingRate, format, channelMask);
1030 return 0;
1031 }
1032
1033 if (profile->mModule->mHandle == 0) {
1034 ALOGE("getInput(): HW module %s not opened", profile->mModule->mName);
1035 return 0;
1036 }
1037
1038 AudioInputDescriptor *inputDesc = new AudioInputDescriptor(profile);
1039
1040 inputDesc->mInputSource = inputSource;
1041 inputDesc->mDevice = device;
1042 inputDesc->mSamplingRate = samplingRate;
1043 inputDesc->mFormat = format;
1044 inputDesc->mChannelMask = channelMask;
1045 inputDesc->mRefCount = 0;
1046 input = mpClientInterface->openInput(profile->mModule->mHandle,
1047 &inputDesc->mDevice,
1048 &inputDesc->mSamplingRate,
1049 &inputDesc->mFormat,
1050 &inputDesc->mChannelMask);
1051
1052 // only accept input with the exact requested set of parameters
1053 if (input == 0 ||
1054 (samplingRate != inputDesc->mSamplingRate) ||
1055 (format != inputDesc->mFormat) ||
1056 (channelMask != inputDesc->mChannelMask)) {
1057 ALOGI("getInput() failed opening input: samplingRate %d, format %d, channelMask %x",
1058 samplingRate, format, channelMask);
1059 if (input != 0) {
1060 mpClientInterface->closeInput(input);
1061 }
1062 delete inputDesc;
1063 return 0;
1064 }
Eric Laurentd4692962014-05-05 18:13:44 -07001065 addInput(input, inputDesc);
Eric Laurente552edb2014-03-10 17:42:56 -07001066 return input;
1067}
1068
Eric Laurente0720872014-03-11 09:30:41 -07001069status_t AudioPolicyManager::startInput(audio_io_handle_t input)
Eric Laurente552edb2014-03-10 17:42:56 -07001070{
1071 ALOGV("startInput() input %d", input);
1072 ssize_t index = mInputs.indexOfKey(input);
1073 if (index < 0) {
1074 ALOGW("startInput() unknown input %d", input);
1075 return BAD_VALUE;
1076 }
1077 AudioInputDescriptor *inputDesc = mInputs.valueAt(index);
1078
1079#ifdef AUDIO_POLICY_TEST
1080 if (mTestInput == 0)
1081#endif //AUDIO_POLICY_TEST
1082 {
1083 // refuse 2 active AudioRecord clients at the same time except if the active input
1084 // uses AUDIO_SOURCE_HOTWORD in which case it is closed.
1085 audio_io_handle_t activeInput = getActiveInput();
1086 if (!isVirtualInputDevice(inputDesc->mDevice) && activeInput != 0) {
1087 AudioInputDescriptor *activeDesc = mInputs.valueFor(activeInput);
1088 if (activeDesc->mInputSource == AUDIO_SOURCE_HOTWORD) {
1089 ALOGW("startInput() preempting already started low-priority input %d", activeInput);
1090 stopInput(activeInput);
1091 releaseInput(activeInput);
1092 } else {
1093 ALOGW("startInput() input %d failed: other input already started", input);
1094 return INVALID_OPERATION;
1095 }
1096 }
1097 }
1098
1099 audio_devices_t newDevice = getDeviceForInputSource(inputDesc->mInputSource);
1100 if ((newDevice != AUDIO_DEVICE_NONE) && (newDevice != inputDesc->mDevice)) {
1101 inputDesc->mDevice = newDevice;
1102 }
1103
1104 // automatically enable the remote submix output when input is started
1105 if (audio_is_remote_submix_device(inputDesc->mDevice)) {
1106 setDeviceConnectionState(AUDIO_DEVICE_OUT_REMOTE_SUBMIX,
Eric Laurent3b73df72014-03-11 09:06:29 -07001107 AUDIO_POLICY_DEVICE_STATE_AVAILABLE, AUDIO_REMOTE_SUBMIX_DEVICE_ADDRESS);
Eric Laurente552edb2014-03-10 17:42:56 -07001108 }
1109
1110 AudioParameter param = AudioParameter();
1111 param.addInt(String8(AudioParameter::keyRouting), (int)inputDesc->mDevice);
1112
1113 int aliasSource = (inputDesc->mInputSource == AUDIO_SOURCE_HOTWORD) ?
1114 AUDIO_SOURCE_VOICE_RECOGNITION : inputDesc->mInputSource;
1115
1116 param.addInt(String8(AudioParameter::keyInputSource), aliasSource);
1117 ALOGV("AudioPolicyManager::startInput() input source = %d", inputDesc->mInputSource);
1118
1119 mpClientInterface->setParameters(input, param.toString());
1120
1121 inputDesc->mRefCount = 1;
1122 return NO_ERROR;
1123}
1124
Eric Laurente0720872014-03-11 09:30:41 -07001125status_t AudioPolicyManager::stopInput(audio_io_handle_t input)
Eric Laurente552edb2014-03-10 17:42:56 -07001126{
1127 ALOGV("stopInput() input %d", input);
1128 ssize_t index = mInputs.indexOfKey(input);
1129 if (index < 0) {
1130 ALOGW("stopInput() unknown input %d", input);
1131 return BAD_VALUE;
1132 }
1133 AudioInputDescriptor *inputDesc = mInputs.valueAt(index);
1134
1135 if (inputDesc->mRefCount == 0) {
1136 ALOGW("stopInput() input %d already stopped", input);
1137 return INVALID_OPERATION;
1138 } else {
1139 // automatically disable the remote submix output when input is stopped
1140 if (audio_is_remote_submix_device(inputDesc->mDevice)) {
1141 setDeviceConnectionState(AUDIO_DEVICE_OUT_REMOTE_SUBMIX,
Eric Laurent3b73df72014-03-11 09:06:29 -07001142 AUDIO_POLICY_DEVICE_STATE_UNAVAILABLE, AUDIO_REMOTE_SUBMIX_DEVICE_ADDRESS);
Eric Laurente552edb2014-03-10 17:42:56 -07001143 }
1144
1145 AudioParameter param = AudioParameter();
1146 param.addInt(String8(AudioParameter::keyRouting), 0);
1147 mpClientInterface->setParameters(input, param.toString());
1148 inputDesc->mRefCount = 0;
1149 return NO_ERROR;
1150 }
1151}
1152
Eric Laurente0720872014-03-11 09:30:41 -07001153void AudioPolicyManager::releaseInput(audio_io_handle_t input)
Eric Laurente552edb2014-03-10 17:42:56 -07001154{
1155 ALOGV("releaseInput() %d", input);
1156 ssize_t index = mInputs.indexOfKey(input);
1157 if (index < 0) {
1158 ALOGW("releaseInput() releasing unknown input %d", input);
1159 return;
1160 }
1161 mpClientInterface->closeInput(input);
1162 delete mInputs.valueAt(index);
1163 mInputs.removeItem(input);
1164 ALOGV("releaseInput() exit");
1165}
1166
Eric Laurentd4692962014-05-05 18:13:44 -07001167void AudioPolicyManager::closeAllInputs() {
1168 for(size_t input_index = 0; input_index < mInputs.size(); input_index++) {
1169 mpClientInterface->closeInput(mInputs.keyAt(input_index));
1170 }
1171 mInputs.clear();
1172}
1173
Eric Laurente0720872014-03-11 09:30:41 -07001174void AudioPolicyManager::initStreamVolume(audio_stream_type_t stream,
Eric Laurente552edb2014-03-10 17:42:56 -07001175 int indexMin,
1176 int indexMax)
1177{
1178 ALOGV("initStreamVolume() stream %d, min %d, max %d", stream , indexMin, indexMax);
1179 if (indexMin < 0 || indexMin >= indexMax) {
1180 ALOGW("initStreamVolume() invalid index limits for stream %d, min %d, max %d", stream , indexMin, indexMax);
1181 return;
1182 }
1183 mStreams[stream].mIndexMin = indexMin;
1184 mStreams[stream].mIndexMax = indexMax;
1185}
1186
Eric Laurente0720872014-03-11 09:30:41 -07001187status_t AudioPolicyManager::setStreamVolumeIndex(audio_stream_type_t stream,
Eric Laurente552edb2014-03-10 17:42:56 -07001188 int index,
1189 audio_devices_t device)
1190{
1191
1192 if ((index < mStreams[stream].mIndexMin) || (index > mStreams[stream].mIndexMax)) {
1193 return BAD_VALUE;
1194 }
1195 if (!audio_is_output_device(device)) {
1196 return BAD_VALUE;
1197 }
1198
1199 // Force max volume if stream cannot be muted
1200 if (!mStreams[stream].mCanBeMuted) index = mStreams[stream].mIndexMax;
1201
1202 ALOGV("setStreamVolumeIndex() stream %d, device %04x, index %d",
1203 stream, device, index);
1204
1205 // if device is AUDIO_DEVICE_OUT_DEFAULT set default value and
1206 // clear all device specific values
1207 if (device == AUDIO_DEVICE_OUT_DEFAULT) {
1208 mStreams[stream].mIndexCur.clear();
1209 }
1210 mStreams[stream].mIndexCur.add(device, index);
1211
1212 // compute and apply stream volume on all outputs according to connected device
1213 status_t status = NO_ERROR;
1214 for (size_t i = 0; i < mOutputs.size(); i++) {
1215 audio_devices_t curDevice =
1216 getDeviceForVolume(mOutputs.valueAt(i)->device());
1217 if ((device == AUDIO_DEVICE_OUT_DEFAULT) || (device == curDevice)) {
1218 status_t volStatus = checkAndSetVolume(stream, index, mOutputs.keyAt(i), curDevice);
1219 if (volStatus != NO_ERROR) {
1220 status = volStatus;
1221 }
1222 }
1223 }
1224 return status;
1225}
1226
Eric Laurente0720872014-03-11 09:30:41 -07001227status_t AudioPolicyManager::getStreamVolumeIndex(audio_stream_type_t stream,
Eric Laurente552edb2014-03-10 17:42:56 -07001228 int *index,
1229 audio_devices_t device)
1230{
1231 if (index == NULL) {
1232 return BAD_VALUE;
1233 }
1234 if (!audio_is_output_device(device)) {
1235 return BAD_VALUE;
1236 }
1237 // if device is AUDIO_DEVICE_OUT_DEFAULT, return volume for device corresponding to
1238 // the strategy the stream belongs to.
1239 if (device == AUDIO_DEVICE_OUT_DEFAULT) {
1240 device = getDeviceForStrategy(getStrategy(stream), true /*fromCache*/);
1241 }
1242 device = getDeviceForVolume(device);
1243
1244 *index = mStreams[stream].getVolumeIndex(device);
1245 ALOGV("getStreamVolumeIndex() stream %d device %08x index %d", stream, device, *index);
1246 return NO_ERROR;
1247}
1248
Eric Laurente0720872014-03-11 09:30:41 -07001249audio_io_handle_t AudioPolicyManager::selectOutputForEffects(
Eric Laurente552edb2014-03-10 17:42:56 -07001250 const SortedVector<audio_io_handle_t>& outputs)
1251{
1252 // select one output among several suitable for global effects.
1253 // The priority is as follows:
1254 // 1: An offloaded output. If the effect ends up not being offloadable,
1255 // AudioFlinger will invalidate the track and the offloaded output
1256 // will be closed causing the effect to be moved to a PCM output.
1257 // 2: A deep buffer output
1258 // 3: the first output in the list
1259
1260 if (outputs.size() == 0) {
1261 return 0;
1262 }
1263
1264 audio_io_handle_t outputOffloaded = 0;
1265 audio_io_handle_t outputDeepBuffer = 0;
1266
1267 for (size_t i = 0; i < outputs.size(); i++) {
1268 AudioOutputDescriptor *desc = mOutputs.valueFor(outputs[i]);
Eric Laurentd4692962014-05-05 18:13:44 -07001269 ALOGV("selectOutputForEffects outputs[%zu] flags %x", i, desc->mFlags);
Eric Laurente552edb2014-03-10 17:42:56 -07001270 if ((desc->mFlags & AUDIO_OUTPUT_FLAG_COMPRESS_OFFLOAD) != 0) {
1271 outputOffloaded = outputs[i];
1272 }
1273 if ((desc->mFlags & AUDIO_OUTPUT_FLAG_DEEP_BUFFER) != 0) {
1274 outputDeepBuffer = outputs[i];
1275 }
1276 }
1277
1278 ALOGV("selectOutputForEffects outputOffloaded %d outputDeepBuffer %d",
1279 outputOffloaded, outputDeepBuffer);
1280 if (outputOffloaded != 0) {
1281 return outputOffloaded;
1282 }
1283 if (outputDeepBuffer != 0) {
1284 return outputDeepBuffer;
1285 }
1286
1287 return outputs[0];
1288}
1289
Eric Laurente0720872014-03-11 09:30:41 -07001290audio_io_handle_t AudioPolicyManager::getOutputForEffect(const effect_descriptor_t *desc)
Eric Laurente552edb2014-03-10 17:42:56 -07001291{
1292 // apply simple rule where global effects are attached to the same output as MUSIC streams
1293
Eric Laurent3b73df72014-03-11 09:06:29 -07001294 routing_strategy strategy = getStrategy(AUDIO_STREAM_MUSIC);
Eric Laurente552edb2014-03-10 17:42:56 -07001295 audio_devices_t device = getDeviceForStrategy(strategy, false /*fromCache*/);
1296 SortedVector<audio_io_handle_t> dstOutputs = getOutputsForDevice(device, mOutputs);
1297
1298 audio_io_handle_t output = selectOutputForEffects(dstOutputs);
1299 ALOGV("getOutputForEffect() got output %d for fx %s flags %x",
1300 output, (desc == NULL) ? "unspecified" : desc->name, (desc == NULL) ? 0 : desc->flags);
1301
1302 return output;
1303}
1304
Eric Laurente0720872014-03-11 09:30:41 -07001305status_t AudioPolicyManager::registerEffect(const effect_descriptor_t *desc,
Eric Laurente552edb2014-03-10 17:42:56 -07001306 audio_io_handle_t io,
1307 uint32_t strategy,
1308 int session,
1309 int id)
1310{
1311 ssize_t index = mOutputs.indexOfKey(io);
1312 if (index < 0) {
1313 index = mInputs.indexOfKey(io);
1314 if (index < 0) {
1315 ALOGW("registerEffect() unknown io %d", io);
1316 return INVALID_OPERATION;
1317 }
1318 }
1319
1320 if (mTotalEffectsMemory + desc->memoryUsage > getMaxEffectsMemory()) {
1321 ALOGW("registerEffect() memory limit exceeded for Fx %s, Memory %d KB",
1322 desc->name, desc->memoryUsage);
1323 return INVALID_OPERATION;
1324 }
1325 mTotalEffectsMemory += desc->memoryUsage;
1326 ALOGV("registerEffect() effect %s, io %d, strategy %d session %d id %d",
1327 desc->name, io, strategy, session, id);
1328 ALOGV("registerEffect() memory %d, total memory %d", desc->memoryUsage, mTotalEffectsMemory);
1329
1330 EffectDescriptor *pDesc = new EffectDescriptor();
1331 memcpy (&pDesc->mDesc, desc, sizeof(effect_descriptor_t));
1332 pDesc->mIo = io;
1333 pDesc->mStrategy = (routing_strategy)strategy;
1334 pDesc->mSession = session;
1335 pDesc->mEnabled = false;
1336
1337 mEffects.add(id, pDesc);
1338
1339 return NO_ERROR;
1340}
1341
Eric Laurente0720872014-03-11 09:30:41 -07001342status_t AudioPolicyManager::unregisterEffect(int id)
Eric Laurente552edb2014-03-10 17:42:56 -07001343{
1344 ssize_t index = mEffects.indexOfKey(id);
1345 if (index < 0) {
1346 ALOGW("unregisterEffect() unknown effect ID %d", id);
1347 return INVALID_OPERATION;
1348 }
1349
1350 EffectDescriptor *pDesc = mEffects.valueAt(index);
1351
1352 setEffectEnabled(pDesc, false);
1353
1354 if (mTotalEffectsMemory < pDesc->mDesc.memoryUsage) {
1355 ALOGW("unregisterEffect() memory %d too big for total %d",
1356 pDesc->mDesc.memoryUsage, mTotalEffectsMemory);
1357 pDesc->mDesc.memoryUsage = mTotalEffectsMemory;
1358 }
1359 mTotalEffectsMemory -= pDesc->mDesc.memoryUsage;
1360 ALOGV("unregisterEffect() effect %s, ID %d, memory %d total memory %d",
1361 pDesc->mDesc.name, id, pDesc->mDesc.memoryUsage, mTotalEffectsMemory);
1362
1363 mEffects.removeItem(id);
1364 delete pDesc;
1365
1366 return NO_ERROR;
1367}
1368
Eric Laurente0720872014-03-11 09:30:41 -07001369status_t AudioPolicyManager::setEffectEnabled(int id, bool enabled)
Eric Laurente552edb2014-03-10 17:42:56 -07001370{
1371 ssize_t index = mEffects.indexOfKey(id);
1372 if (index < 0) {
1373 ALOGW("unregisterEffect() unknown effect ID %d", id);
1374 return INVALID_OPERATION;
1375 }
1376
1377 return setEffectEnabled(mEffects.valueAt(index), enabled);
1378}
1379
Eric Laurente0720872014-03-11 09:30:41 -07001380status_t AudioPolicyManager::setEffectEnabled(EffectDescriptor *pDesc, bool enabled)
Eric Laurente552edb2014-03-10 17:42:56 -07001381{
1382 if (enabled == pDesc->mEnabled) {
1383 ALOGV("setEffectEnabled(%s) effect already %s",
1384 enabled?"true":"false", enabled?"enabled":"disabled");
1385 return INVALID_OPERATION;
1386 }
1387
1388 if (enabled) {
1389 if (mTotalEffectsCpuLoad + pDesc->mDesc.cpuLoad > getMaxEffectsCpuLoad()) {
1390 ALOGW("setEffectEnabled(true) CPU Load limit exceeded for Fx %s, CPU %f MIPS",
1391 pDesc->mDesc.name, (float)pDesc->mDesc.cpuLoad/10);
1392 return INVALID_OPERATION;
1393 }
1394 mTotalEffectsCpuLoad += pDesc->mDesc.cpuLoad;
1395 ALOGV("setEffectEnabled(true) total CPU %d", mTotalEffectsCpuLoad);
1396 } else {
1397 if (mTotalEffectsCpuLoad < pDesc->mDesc.cpuLoad) {
1398 ALOGW("setEffectEnabled(false) CPU load %d too high for total %d",
1399 pDesc->mDesc.cpuLoad, mTotalEffectsCpuLoad);
1400 pDesc->mDesc.cpuLoad = mTotalEffectsCpuLoad;
1401 }
1402 mTotalEffectsCpuLoad -= pDesc->mDesc.cpuLoad;
1403 ALOGV("setEffectEnabled(false) total CPU %d", mTotalEffectsCpuLoad);
1404 }
1405 pDesc->mEnabled = enabled;
1406 return NO_ERROR;
1407}
1408
Eric Laurente0720872014-03-11 09:30:41 -07001409bool AudioPolicyManager::isNonOffloadableEffectEnabled()
Eric Laurente552edb2014-03-10 17:42:56 -07001410{
1411 for (size_t i = 0; i < mEffects.size(); i++) {
1412 const EffectDescriptor * const pDesc = mEffects.valueAt(i);
1413 if (pDesc->mEnabled && (pDesc->mStrategy == STRATEGY_MEDIA) &&
1414 ((pDesc->mDesc.flags & EFFECT_FLAG_OFFLOAD_SUPPORTED) == 0)) {
1415 ALOGV("isNonOffloadableEffectEnabled() non offloadable effect %s enabled on session %d",
1416 pDesc->mDesc.name, pDesc->mSession);
1417 return true;
1418 }
1419 }
1420 return false;
1421}
1422
Eric Laurente0720872014-03-11 09:30:41 -07001423bool AudioPolicyManager::isStreamActive(audio_stream_type_t stream, uint32_t inPastMs) const
Eric Laurente552edb2014-03-10 17:42:56 -07001424{
1425 nsecs_t sysTime = systemTime();
1426 for (size_t i = 0; i < mOutputs.size(); i++) {
1427 const AudioOutputDescriptor *outputDesc = mOutputs.valueAt(i);
Eric Laurent3b73df72014-03-11 09:06:29 -07001428 if (outputDesc->isStreamActive(stream, inPastMs, sysTime)) {
Eric Laurente552edb2014-03-10 17:42:56 -07001429 return true;
1430 }
1431 }
1432 return false;
1433}
1434
Eric Laurente0720872014-03-11 09:30:41 -07001435bool AudioPolicyManager::isStreamActiveRemotely(audio_stream_type_t stream,
Eric Laurent3b73df72014-03-11 09:06:29 -07001436 uint32_t inPastMs) const
Eric Laurente552edb2014-03-10 17:42:56 -07001437{
1438 nsecs_t sysTime = systemTime();
1439 for (size_t i = 0; i < mOutputs.size(); i++) {
1440 const AudioOutputDescriptor *outputDesc = mOutputs.valueAt(i);
1441 if (((outputDesc->device() & APM_AUDIO_OUT_DEVICE_REMOTE_ALL) != 0) &&
Eric Laurent3b73df72014-03-11 09:06:29 -07001442 outputDesc->isStreamActive(stream, inPastMs, sysTime)) {
Eric Laurente552edb2014-03-10 17:42:56 -07001443 return true;
1444 }
1445 }
1446 return false;
1447}
1448
Eric Laurente0720872014-03-11 09:30:41 -07001449bool AudioPolicyManager::isSourceActive(audio_source_t source) const
Eric Laurente552edb2014-03-10 17:42:56 -07001450{
1451 for (size_t i = 0; i < mInputs.size(); i++) {
1452 const AudioInputDescriptor * inputDescriptor = mInputs.valueAt(i);
1453 if ((inputDescriptor->mInputSource == (int)source ||
Eric Laurent3b73df72014-03-11 09:06:29 -07001454 (source == AUDIO_SOURCE_VOICE_RECOGNITION &&
Eric Laurente552edb2014-03-10 17:42:56 -07001455 inputDescriptor->mInputSource == AUDIO_SOURCE_HOTWORD))
1456 && (inputDescriptor->mRefCount > 0)) {
1457 return true;
1458 }
1459 }
1460 return false;
1461}
1462
1463
Eric Laurente0720872014-03-11 09:30:41 -07001464status_t AudioPolicyManager::dump(int fd)
Eric Laurente552edb2014-03-10 17:42:56 -07001465{
1466 const size_t SIZE = 256;
1467 char buffer[SIZE];
1468 String8 result;
1469
1470 snprintf(buffer, SIZE, "\nAudioPolicyManager Dump: %p\n", this);
1471 result.append(buffer);
1472
1473 snprintf(buffer, SIZE, " Primary Output: %d\n", mPrimaryOutput);
1474 result.append(buffer);
Eric Laurente552edb2014-03-10 17:42:56 -07001475 snprintf(buffer, SIZE, " Phone state: %d\n", mPhoneState);
1476 result.append(buffer);
Eric Laurent3b73df72014-03-11 09:06:29 -07001477 snprintf(buffer, SIZE, " Force use for communications %d\n",
1478 mForceUse[AUDIO_POLICY_FORCE_FOR_COMMUNICATION]);
Eric Laurente552edb2014-03-10 17:42:56 -07001479 result.append(buffer);
Eric Laurent3b73df72014-03-11 09:06:29 -07001480 snprintf(buffer, SIZE, " Force use for media %d\n", mForceUse[AUDIO_POLICY_FORCE_FOR_MEDIA]);
Eric Laurente552edb2014-03-10 17:42:56 -07001481 result.append(buffer);
Eric Laurent3b73df72014-03-11 09:06:29 -07001482 snprintf(buffer, SIZE, " Force use for record %d\n", mForceUse[AUDIO_POLICY_FORCE_FOR_RECORD]);
Eric Laurente552edb2014-03-10 17:42:56 -07001483 result.append(buffer);
Eric Laurent3b73df72014-03-11 09:06:29 -07001484 snprintf(buffer, SIZE, " Force use for dock %d\n", mForceUse[AUDIO_POLICY_FORCE_FOR_DOCK]);
Eric Laurente552edb2014-03-10 17:42:56 -07001485 result.append(buffer);
Eric Laurent3b73df72014-03-11 09:06:29 -07001486 snprintf(buffer, SIZE, " Force use for system %d\n", mForceUse[AUDIO_POLICY_FORCE_FOR_SYSTEM]);
Eric Laurente552edb2014-03-10 17:42:56 -07001487 result.append(buffer);
Eric Laurente552edb2014-03-10 17:42:56 -07001488
Eric Laurent3a4311c2014-03-17 12:00:47 -07001489 snprintf(buffer, SIZE, " Available output devices:\n");
1490 result.append(buffer);
1491 write(fd, result.string(), result.size());
1492 DeviceDescriptor::dumpHeader(fd, 2);
1493 for (size_t i = 0; i < mAvailableOutputDevices.size(); i++) {
1494 mAvailableOutputDevices[i]->dump(fd, 2);
1495 }
1496 snprintf(buffer, SIZE, "\n Available input devices:\n");
1497 write(fd, buffer, strlen(buffer));
1498 DeviceDescriptor::dumpHeader(fd, 2);
1499 for (size_t i = 0; i < mAvailableInputDevices.size(); i++) {
1500 mAvailableInputDevices[i]->dump(fd, 2);
1501 }
Eric Laurente552edb2014-03-10 17:42:56 -07001502
1503 snprintf(buffer, SIZE, "\nHW Modules dump:\n");
1504 write(fd, buffer, strlen(buffer));
1505 for (size_t i = 0; i < mHwModules.size(); i++) {
Eric Laurentd4692962014-05-05 18:13:44 -07001506 snprintf(buffer, SIZE, "- HW Module %zu:\n", i + 1);
Eric Laurente552edb2014-03-10 17:42:56 -07001507 write(fd, buffer, strlen(buffer));
1508 mHwModules[i]->dump(fd);
1509 }
1510
1511 snprintf(buffer, SIZE, "\nOutputs dump:\n");
1512 write(fd, buffer, strlen(buffer));
1513 for (size_t i = 0; i < mOutputs.size(); i++) {
1514 snprintf(buffer, SIZE, "- Output %d dump:\n", mOutputs.keyAt(i));
1515 write(fd, buffer, strlen(buffer));
1516 mOutputs.valueAt(i)->dump(fd);
1517 }
1518
1519 snprintf(buffer, SIZE, "\nInputs dump:\n");
1520 write(fd, buffer, strlen(buffer));
1521 for (size_t i = 0; i < mInputs.size(); i++) {
1522 snprintf(buffer, SIZE, "- Input %d dump:\n", mInputs.keyAt(i));
1523 write(fd, buffer, strlen(buffer));
1524 mInputs.valueAt(i)->dump(fd);
1525 }
1526
1527 snprintf(buffer, SIZE, "\nStreams dump:\n");
1528 write(fd, buffer, strlen(buffer));
1529 snprintf(buffer, SIZE,
1530 " Stream Can be muted Index Min Index Max Index Cur [device : index]...\n");
1531 write(fd, buffer, strlen(buffer));
Eric Laurent3b73df72014-03-11 09:06:29 -07001532 for (int i = 0; i < AUDIO_STREAM_CNT; i++) {
Eric Laurentd4692962014-05-05 18:13:44 -07001533 snprintf(buffer, SIZE, " %02zu ", i);
Eric Laurente552edb2014-03-10 17:42:56 -07001534 write(fd, buffer, strlen(buffer));
1535 mStreams[i].dump(fd);
1536 }
1537
1538 snprintf(buffer, SIZE, "\nTotal Effects CPU: %f MIPS, Total Effects memory: %d KB\n",
1539 (float)mTotalEffectsCpuLoad/10, mTotalEffectsMemory);
1540 write(fd, buffer, strlen(buffer));
1541
1542 snprintf(buffer, SIZE, "Registered effects:\n");
1543 write(fd, buffer, strlen(buffer));
1544 for (size_t i = 0; i < mEffects.size(); i++) {
1545 snprintf(buffer, SIZE, "- Effect %d dump:\n", mEffects.keyAt(i));
1546 write(fd, buffer, strlen(buffer));
1547 mEffects.valueAt(i)->dump(fd);
1548 }
1549
1550
1551 return NO_ERROR;
1552}
1553
1554// This function checks for the parameters which can be offloaded.
1555// This can be enhanced depending on the capability of the DSP and policy
1556// of the system.
Eric Laurente0720872014-03-11 09:30:41 -07001557bool AudioPolicyManager::isOffloadSupported(const audio_offload_info_t& offloadInfo)
Eric Laurente552edb2014-03-10 17:42:56 -07001558{
1559 ALOGV("isOffloadSupported: SR=%u, CM=0x%x, Format=0x%x, StreamType=%d,"
Eric Laurentd4692962014-05-05 18:13:44 -07001560 " BitRate=%u, duration=%" PRId64 " us, has_video=%d",
Eric Laurente552edb2014-03-10 17:42:56 -07001561 offloadInfo.sample_rate, offloadInfo.channel_mask,
1562 offloadInfo.format,
1563 offloadInfo.stream_type, offloadInfo.bit_rate, offloadInfo.duration_us,
1564 offloadInfo.has_video);
1565
1566 // Check if offload has been disabled
1567 char propValue[PROPERTY_VALUE_MAX];
1568 if (property_get("audio.offload.disable", propValue, "0")) {
1569 if (atoi(propValue) != 0) {
1570 ALOGV("offload disabled by audio.offload.disable=%s", propValue );
1571 return false;
1572 }
1573 }
1574
1575 // Check if stream type is music, then only allow offload as of now.
1576 if (offloadInfo.stream_type != AUDIO_STREAM_MUSIC)
1577 {
1578 ALOGV("isOffloadSupported: stream_type != MUSIC, returning false");
1579 return false;
1580 }
1581
1582 //TODO: enable audio offloading with video when ready
1583 if (offloadInfo.has_video)
1584 {
1585 ALOGV("isOffloadSupported: has_video == true, returning false");
1586 return false;
1587 }
1588
1589 //If duration is less than minimum value defined in property, return false
1590 if (property_get("audio.offload.min.duration.secs", propValue, NULL)) {
1591 if (offloadInfo.duration_us < (atoi(propValue) * 1000000 )) {
1592 ALOGV("Offload denied by duration < audio.offload.min.duration.secs(=%s)", propValue);
1593 return false;
1594 }
1595 } else if (offloadInfo.duration_us < OFFLOAD_DEFAULT_MIN_DURATION_SECS * 1000000) {
1596 ALOGV("Offload denied by duration < default min(=%u)", OFFLOAD_DEFAULT_MIN_DURATION_SECS);
1597 return false;
1598 }
1599
1600 // Do not allow offloading if one non offloadable effect is enabled. This prevents from
1601 // creating an offloaded track and tearing it down immediately after start when audioflinger
1602 // detects there is an active non offloadable effect.
1603 // FIXME: We should check the audio session here but we do not have it in this context.
1604 // This may prevent offloading in rare situations where effects are left active by apps
1605 // in the background.
1606 if (isNonOffloadableEffectEnabled()) {
1607 return false;
1608 }
1609
1610 // See if there is a profile to support this.
1611 // AUDIO_DEVICE_NONE
1612 IOProfile *profile = getProfileForDirectOutput(AUDIO_DEVICE_NONE /*ignore device */,
1613 offloadInfo.sample_rate,
1614 offloadInfo.format,
1615 offloadInfo.channel_mask,
1616 AUDIO_OUTPUT_FLAG_COMPRESS_OFFLOAD);
1617 ALOGV("isOffloadSupported() profile %sfound", profile != NULL ? "" : "NOT ");
1618 return (profile != NULL);
1619}
1620
1621// ----------------------------------------------------------------------------
Eric Laurente0720872014-03-11 09:30:41 -07001622// AudioPolicyManager
Eric Laurente552edb2014-03-10 17:42:56 -07001623// ----------------------------------------------------------------------------
1624
Eric Laurent3a4311c2014-03-17 12:00:47 -07001625uint32_t AudioPolicyManager::nextUniqueId()
1626{
1627 return android_atomic_inc(&mNextUniqueId);
1628}
1629
Eric Laurente0720872014-03-11 09:30:41 -07001630AudioPolicyManager::AudioPolicyManager(AudioPolicyClientInterface *clientInterface)
Eric Laurente552edb2014-03-10 17:42:56 -07001631 :
1632#ifdef AUDIO_POLICY_TEST
1633 Thread(false),
1634#endif //AUDIO_POLICY_TEST
1635 mPrimaryOutput((audio_io_handle_t)0),
Eric Laurent3b73df72014-03-11 09:06:29 -07001636 mPhoneState(AUDIO_MODE_NORMAL),
Eric Laurente552edb2014-03-10 17:42:56 -07001637 mLimitRingtoneVolume(false), mLastVoiceVolume(-1.0f),
1638 mTotalEffectsCpuLoad(0), mTotalEffectsMemory(0),
Eric Laurent3a4311c2014-03-17 12:00:47 -07001639 mA2dpSuspended(false),
1640 mSpeakerDrcEnabled(false), mNextUniqueId(0)
Eric Laurente552edb2014-03-10 17:42:56 -07001641{
1642 mpClientInterface = clientInterface;
1643
Eric Laurent3b73df72014-03-11 09:06:29 -07001644 for (int i = 0; i < AUDIO_POLICY_FORCE_USE_CNT; i++) {
1645 mForceUse[i] = AUDIO_POLICY_FORCE_NONE;
Eric Laurente552edb2014-03-10 17:42:56 -07001646 }
1647
Eric Laurent3a4311c2014-03-17 12:00:47 -07001648 mDefaultOutputDevice = new DeviceDescriptor(AUDIO_DEVICE_OUT_SPEAKER);
Eric Laurente552edb2014-03-10 17:42:56 -07001649 if (loadAudioPolicyConfig(AUDIO_POLICY_VENDOR_CONFIG_FILE) != NO_ERROR) {
1650 if (loadAudioPolicyConfig(AUDIO_POLICY_CONFIG_FILE) != NO_ERROR) {
1651 ALOGE("could not load audio policy configuration file, setting defaults");
1652 defaultAudioPolicyConfig();
1653 }
1654 }
Eric Laurent3a4311c2014-03-17 12:00:47 -07001655 // mAvailableOutputDevices and mAvailableInputDevices now contain all attached devices
Eric Laurente552edb2014-03-10 17:42:56 -07001656
1657 // must be done after reading the policy
1658 initializeVolumeCurves();
1659
1660 // open all output streams needed to access attached devices
Eric Laurent3a4311c2014-03-17 12:00:47 -07001661 audio_devices_t outputDeviceTypes = mAvailableOutputDevices.types();
1662 audio_devices_t inputDeviceTypes = mAvailableInputDevices.types() & ~AUDIO_DEVICE_BIT_IN;
Eric Laurente552edb2014-03-10 17:42:56 -07001663 for (size_t i = 0; i < mHwModules.size(); i++) {
1664 mHwModules[i]->mHandle = mpClientInterface->loadHwModule(mHwModules[i]->mName);
1665 if (mHwModules[i]->mHandle == 0) {
1666 ALOGW("could not open HW module %s", mHwModules[i]->mName);
1667 continue;
1668 }
1669 // open all output streams needed to access attached devices
1670 // except for direct output streams that are only opened when they are actually
1671 // required by an app.
Eric Laurent3a4311c2014-03-17 12:00:47 -07001672 // This also validates mAvailableOutputDevices list
Eric Laurente552edb2014-03-10 17:42:56 -07001673 for (size_t j = 0; j < mHwModules[i]->mOutputProfiles.size(); j++)
1674 {
1675 const IOProfile *outProfile = mHwModules[i]->mOutputProfiles[j];
1676
Eric Laurent3a4311c2014-03-17 12:00:47 -07001677 if (outProfile->mSupportedDevices.isEmpty()) {
1678 ALOGW("Output profile contains no device on module %s", mHwModules[i]->mName);
1679 continue;
1680 }
1681
1682 audio_devices_t profileTypes = outProfile->mSupportedDevices.types();
1683 if ((profileTypes & outputDeviceTypes) &&
Eric Laurente552edb2014-03-10 17:42:56 -07001684 ((outProfile->mFlags & AUDIO_OUTPUT_FLAG_DIRECT) == 0)) {
1685 AudioOutputDescriptor *outputDesc = new AudioOutputDescriptor(outProfile);
Eric Laurent3a4311c2014-03-17 12:00:47 -07001686
1687 outputDesc->mDevice = (audio_devices_t)(mDefaultOutputDevice->mType & profileTypes);
Eric Laurente552edb2014-03-10 17:42:56 -07001688 audio_io_handle_t output = mpClientInterface->openOutput(
1689 outProfile->mModule->mHandle,
1690 &outputDesc->mDevice,
1691 &outputDesc->mSamplingRate,
1692 &outputDesc->mFormat,
1693 &outputDesc->mChannelMask,
1694 &outputDesc->mLatency,
1695 outputDesc->mFlags);
1696 if (output == 0) {
Eric Laurent3a4311c2014-03-17 12:00:47 -07001697 ALOGW("Cannot open output stream for device %08x on hw module %s",
1698 outputDesc->mDevice,
1699 mHwModules[i]->mName);
Eric Laurente552edb2014-03-10 17:42:56 -07001700 delete outputDesc;
1701 } else {
Eric Laurent5b61ddd2014-05-07 09:10:01 -07001702 for (size_t k = 0; k < outProfile->mSupportedDevices.size(); k++) {
1703 audio_devices_t type = outProfile->mSupportedDevices[k]->mType;
Eric Laurent3a4311c2014-03-17 12:00:47 -07001704 ssize_t index =
Eric Laurent5b61ddd2014-05-07 09:10:01 -07001705 mAvailableOutputDevices.indexOf(outProfile->mSupportedDevices[k]);
Eric Laurent3a4311c2014-03-17 12:00:47 -07001706 // give a valid ID to an attached device once confirmed it is reachable
1707 if ((index >= 0) && (mAvailableOutputDevices[index]->mId == 0)) {
1708 mAvailableOutputDevices[index]->mId = nextUniqueId();
1709 }
1710 }
Eric Laurente552edb2014-03-10 17:42:56 -07001711 if (mPrimaryOutput == 0 &&
1712 outProfile->mFlags & AUDIO_OUTPUT_FLAG_PRIMARY) {
1713 mPrimaryOutput = output;
1714 }
1715 addOutput(output, outputDesc);
1716 setOutputDevice(output,
Eric Laurent3a4311c2014-03-17 12:00:47 -07001717 outputDesc->mDevice,
Eric Laurente552edb2014-03-10 17:42:56 -07001718 true);
1719 }
1720 }
1721 }
Eric Laurent3a4311c2014-03-17 12:00:47 -07001722 // open input streams needed to access attached devices to validate
1723 // mAvailableInputDevices list
1724 for (size_t j = 0; j < mHwModules[i]->mInputProfiles.size(); j++)
1725 {
1726 const IOProfile *inProfile = mHwModules[i]->mInputProfiles[j];
Eric Laurente552edb2014-03-10 17:42:56 -07001727
Eric Laurent3a4311c2014-03-17 12:00:47 -07001728 if (inProfile->mSupportedDevices.isEmpty()) {
1729 ALOGW("Input profile contains no device on module %s", mHwModules[i]->mName);
1730 continue;
1731 }
1732
1733 audio_devices_t profileTypes = inProfile->mSupportedDevices.types();
1734 if (profileTypes & inputDeviceTypes) {
1735 AudioInputDescriptor *inputDesc = new AudioInputDescriptor(inProfile);
1736
1737 inputDesc->mInputSource = AUDIO_SOURCE_MIC;
1738 inputDesc->mDevice = inProfile->mSupportedDevices[0]->mType;
1739 audio_io_handle_t input = mpClientInterface->openInput(
1740 inProfile->mModule->mHandle,
1741 &inputDesc->mDevice,
1742 &inputDesc->mSamplingRate,
1743 &inputDesc->mFormat,
1744 &inputDesc->mChannelMask);
1745
1746 if (input != 0) {
Eric Laurent5b61ddd2014-05-07 09:10:01 -07001747 for (size_t k = 0; k < inProfile->mSupportedDevices.size(); k++) {
1748 audio_devices_t type = inProfile->mSupportedDevices[k]->mType;
Eric Laurent3a4311c2014-03-17 12:00:47 -07001749 ssize_t index =
Eric Laurent5b61ddd2014-05-07 09:10:01 -07001750 mAvailableInputDevices.indexOf(inProfile->mSupportedDevices[k]);
Eric Laurent3a4311c2014-03-17 12:00:47 -07001751 // give a valid ID to an attached device once confirmed it is reachable
1752 if ((index >= 0) && (mAvailableInputDevices[index]->mId == 0)) {
1753 mAvailableInputDevices[index]->mId = nextUniqueId();
1754 }
1755 }
1756 mpClientInterface->closeInput(input);
1757 } else {
1758 ALOGW("Cannot open input stream for device %08x on hw module %s",
1759 inputDesc->mDevice,
1760 mHwModules[i]->mName);
1761 }
1762 delete inputDesc;
1763 }
1764 }
1765 }
1766 // make sure all attached devices have been allocated a unique ID
1767 for (size_t i = 0; i < mAvailableOutputDevices.size();) {
1768 if (mAvailableOutputDevices[i]->mId == 0) {
1769 ALOGW("Input device %08x unreachable", mAvailableOutputDevices[i]->mType);
1770 mAvailableOutputDevices.remove(mAvailableOutputDevices[i]);
1771 continue;
1772 }
1773 i++;
1774 }
1775 for (size_t i = 0; i < mAvailableInputDevices.size();) {
1776 if (mAvailableInputDevices[i]->mId == 0) {
1777 ALOGW("Input device %08x unreachable", mAvailableInputDevices[i]->mType);
1778 mAvailableInputDevices.remove(mAvailableInputDevices[i]);
1779 continue;
1780 }
1781 i++;
1782 }
1783 // make sure default device is reachable
1784 if (mAvailableOutputDevices.indexOf(mDefaultOutputDevice) < 0) {
1785 ALOGE("Default device %08x is unreachable", mDefaultOutputDevice->mType);
1786 }
Eric Laurente552edb2014-03-10 17:42:56 -07001787
1788 ALOGE_IF((mPrimaryOutput == 0), "Failed to open primary output");
1789
1790 updateDevicesAndOutputs();
1791
1792#ifdef AUDIO_POLICY_TEST
1793 if (mPrimaryOutput != 0) {
1794 AudioParameter outputCmd = AudioParameter();
1795 outputCmd.addInt(String8("set_id"), 0);
1796 mpClientInterface->setParameters(mPrimaryOutput, outputCmd.toString());
1797
1798 mTestDevice = AUDIO_DEVICE_OUT_SPEAKER;
1799 mTestSamplingRate = 44100;
Eric Laurent3b73df72014-03-11 09:06:29 -07001800 mTestFormat = AUDIO_FORMAT_PCM_16_BIT;
1801 mTestChannels = AUDIO_CHANNEL_OUT_STEREO;
Eric Laurente552edb2014-03-10 17:42:56 -07001802 mTestLatencyMs = 0;
1803 mCurOutput = 0;
1804 mDirectOutput = false;
1805 for (int i = 0; i < NUM_TEST_OUTPUTS; i++) {
1806 mTestOutputs[i] = 0;
1807 }
1808
1809 const size_t SIZE = 256;
1810 char buffer[SIZE];
1811 snprintf(buffer, SIZE, "AudioPolicyManagerTest");
1812 run(buffer, ANDROID_PRIORITY_AUDIO);
1813 }
1814#endif //AUDIO_POLICY_TEST
1815}
1816
Eric Laurente0720872014-03-11 09:30:41 -07001817AudioPolicyManager::~AudioPolicyManager()
Eric Laurente552edb2014-03-10 17:42:56 -07001818{
1819#ifdef AUDIO_POLICY_TEST
1820 exit();
1821#endif //AUDIO_POLICY_TEST
1822 for (size_t i = 0; i < mOutputs.size(); i++) {
1823 mpClientInterface->closeOutput(mOutputs.keyAt(i));
1824 delete mOutputs.valueAt(i);
1825 }
1826 for (size_t i = 0; i < mInputs.size(); i++) {
1827 mpClientInterface->closeInput(mInputs.keyAt(i));
1828 delete mInputs.valueAt(i);
1829 }
1830 for (size_t i = 0; i < mHwModules.size(); i++) {
1831 delete mHwModules[i];
1832 }
Eric Laurent3a4311c2014-03-17 12:00:47 -07001833 mAvailableOutputDevices.clear();
1834 mAvailableInputDevices.clear();
Eric Laurente552edb2014-03-10 17:42:56 -07001835}
1836
Eric Laurente0720872014-03-11 09:30:41 -07001837status_t AudioPolicyManager::initCheck()
Eric Laurente552edb2014-03-10 17:42:56 -07001838{
1839 return (mPrimaryOutput == 0) ? NO_INIT : NO_ERROR;
1840}
1841
1842#ifdef AUDIO_POLICY_TEST
Eric Laurente0720872014-03-11 09:30:41 -07001843bool AudioPolicyManager::threadLoop()
Eric Laurente552edb2014-03-10 17:42:56 -07001844{
1845 ALOGV("entering threadLoop()");
1846 while (!exitPending())
1847 {
1848 String8 command;
1849 int valueInt;
1850 String8 value;
1851
1852 Mutex::Autolock _l(mLock);
1853 mWaitWorkCV.waitRelative(mLock, milliseconds(50));
1854
1855 command = mpClientInterface->getParameters(0, String8("test_cmd_policy"));
1856 AudioParameter param = AudioParameter(command);
1857
1858 if (param.getInt(String8("test_cmd_policy"), valueInt) == NO_ERROR &&
1859 valueInt != 0) {
1860 ALOGV("Test command %s received", command.string());
1861 String8 target;
1862 if (param.get(String8("target"), target) != NO_ERROR) {
1863 target = "Manager";
1864 }
1865 if (param.getInt(String8("test_cmd_policy_output"), valueInt) == NO_ERROR) {
1866 param.remove(String8("test_cmd_policy_output"));
1867 mCurOutput = valueInt;
1868 }
1869 if (param.get(String8("test_cmd_policy_direct"), value) == NO_ERROR) {
1870 param.remove(String8("test_cmd_policy_direct"));
1871 if (value == "false") {
1872 mDirectOutput = false;
1873 } else if (value == "true") {
1874 mDirectOutput = true;
1875 }
1876 }
1877 if (param.getInt(String8("test_cmd_policy_input"), valueInt) == NO_ERROR) {
1878 param.remove(String8("test_cmd_policy_input"));
1879 mTestInput = valueInt;
1880 }
1881
1882 if (param.get(String8("test_cmd_policy_format"), value) == NO_ERROR) {
1883 param.remove(String8("test_cmd_policy_format"));
Eric Laurent3b73df72014-03-11 09:06:29 -07001884 int format = AUDIO_FORMAT_INVALID;
Eric Laurente552edb2014-03-10 17:42:56 -07001885 if (value == "PCM 16 bits") {
Eric Laurent3b73df72014-03-11 09:06:29 -07001886 format = AUDIO_FORMAT_PCM_16_BIT;
Eric Laurente552edb2014-03-10 17:42:56 -07001887 } else if (value == "PCM 8 bits") {
Eric Laurent3b73df72014-03-11 09:06:29 -07001888 format = AUDIO_FORMAT_PCM_8_BIT;
Eric Laurente552edb2014-03-10 17:42:56 -07001889 } else if (value == "Compressed MP3") {
Eric Laurent3b73df72014-03-11 09:06:29 -07001890 format = AUDIO_FORMAT_MP3;
Eric Laurente552edb2014-03-10 17:42:56 -07001891 }
Eric Laurent3b73df72014-03-11 09:06:29 -07001892 if (format != AUDIO_FORMAT_INVALID) {
Eric Laurente552edb2014-03-10 17:42:56 -07001893 if (target == "Manager") {
1894 mTestFormat = format;
1895 } else if (mTestOutputs[mCurOutput] != 0) {
1896 AudioParameter outputParam = AudioParameter();
1897 outputParam.addInt(String8("format"), format);
1898 mpClientInterface->setParameters(mTestOutputs[mCurOutput], outputParam.toString());
1899 }
1900 }
1901 }
1902 if (param.get(String8("test_cmd_policy_channels"), value) == NO_ERROR) {
1903 param.remove(String8("test_cmd_policy_channels"));
1904 int channels = 0;
1905
1906 if (value == "Channels Stereo") {
Eric Laurent3b73df72014-03-11 09:06:29 -07001907 channels = AUDIO_CHANNEL_OUT_STEREO;
Eric Laurente552edb2014-03-10 17:42:56 -07001908 } else if (value == "Channels Mono") {
Eric Laurent3b73df72014-03-11 09:06:29 -07001909 channels = AUDIO_CHANNEL_OUT_MONO;
Eric Laurente552edb2014-03-10 17:42:56 -07001910 }
1911 if (channels != 0) {
1912 if (target == "Manager") {
1913 mTestChannels = channels;
1914 } else if (mTestOutputs[mCurOutput] != 0) {
1915 AudioParameter outputParam = AudioParameter();
1916 outputParam.addInt(String8("channels"), channels);
1917 mpClientInterface->setParameters(mTestOutputs[mCurOutput], outputParam.toString());
1918 }
1919 }
1920 }
1921 if (param.getInt(String8("test_cmd_policy_sampleRate"), valueInt) == NO_ERROR) {
1922 param.remove(String8("test_cmd_policy_sampleRate"));
1923 if (valueInt >= 0 && valueInt <= 96000) {
1924 int samplingRate = valueInt;
1925 if (target == "Manager") {
1926 mTestSamplingRate = samplingRate;
1927 } else if (mTestOutputs[mCurOutput] != 0) {
1928 AudioParameter outputParam = AudioParameter();
1929 outputParam.addInt(String8("sampling_rate"), samplingRate);
1930 mpClientInterface->setParameters(mTestOutputs[mCurOutput], outputParam.toString());
1931 }
1932 }
1933 }
1934
1935 if (param.get(String8("test_cmd_policy_reopen"), value) == NO_ERROR) {
1936 param.remove(String8("test_cmd_policy_reopen"));
1937
1938 AudioOutputDescriptor *outputDesc = mOutputs.valueFor(mPrimaryOutput);
1939 mpClientInterface->closeOutput(mPrimaryOutput);
1940
1941 audio_module_handle_t moduleHandle = outputDesc->mModule->mHandle;
1942
1943 delete mOutputs.valueFor(mPrimaryOutput);
1944 mOutputs.removeItem(mPrimaryOutput);
1945
1946 AudioOutputDescriptor *outputDesc = new AudioOutputDescriptor(NULL);
1947 outputDesc->mDevice = AUDIO_DEVICE_OUT_SPEAKER;
1948 mPrimaryOutput = mpClientInterface->openOutput(moduleHandle,
1949 &outputDesc->mDevice,
1950 &outputDesc->mSamplingRate,
1951 &outputDesc->mFormat,
1952 &outputDesc->mChannelMask,
1953 &outputDesc->mLatency,
1954 outputDesc->mFlags);
1955 if (mPrimaryOutput == 0) {
1956 ALOGE("Failed to reopen hardware output stream, samplingRate: %d, format %d, channels %d",
1957 outputDesc->mSamplingRate, outputDesc->mFormat, outputDesc->mChannelMask);
1958 } else {
1959 AudioParameter outputCmd = AudioParameter();
1960 outputCmd.addInt(String8("set_id"), 0);
1961 mpClientInterface->setParameters(mPrimaryOutput, outputCmd.toString());
1962 addOutput(mPrimaryOutput, outputDesc);
1963 }
1964 }
1965
1966
1967 mpClientInterface->setParameters(0, String8("test_cmd_policy="));
1968 }
1969 }
1970 return false;
1971}
1972
Eric Laurente0720872014-03-11 09:30:41 -07001973void AudioPolicyManager::exit()
Eric Laurente552edb2014-03-10 17:42:56 -07001974{
1975 {
1976 AutoMutex _l(mLock);
1977 requestExit();
1978 mWaitWorkCV.signal();
1979 }
1980 requestExitAndWait();
1981}
1982
Eric Laurente0720872014-03-11 09:30:41 -07001983int AudioPolicyManager::testOutputIndex(audio_io_handle_t output)
Eric Laurente552edb2014-03-10 17:42:56 -07001984{
1985 for (int i = 0; i < NUM_TEST_OUTPUTS; i++) {
1986 if (output == mTestOutputs[i]) return i;
1987 }
1988 return 0;
1989}
1990#endif //AUDIO_POLICY_TEST
1991
1992// ---
1993
Eric Laurente0720872014-03-11 09:30:41 -07001994void AudioPolicyManager::addOutput(audio_io_handle_t id, AudioOutputDescriptor *outputDesc)
Eric Laurente552edb2014-03-10 17:42:56 -07001995{
1996 outputDesc->mId = id;
1997 mOutputs.add(id, outputDesc);
1998}
1999
Eric Laurentd4692962014-05-05 18:13:44 -07002000void AudioPolicyManager::addInput(audio_io_handle_t id, AudioInputDescriptor *inputDesc)
2001{
2002 inputDesc->mId = id;
2003 mInputs.add(id, inputDesc);
2004}
Eric Laurente552edb2014-03-10 17:42:56 -07002005
Eric Laurent3a4311c2014-03-17 12:00:47 -07002006String8 AudioPolicyManager::addressToParameter(audio_devices_t device, const String8 address)
2007{
2008 if (device & AUDIO_DEVICE_OUT_ALL_A2DP) {
2009 return String8("a2dp_sink_address=")+address;
2010 }
2011 return address;
2012}
2013
Eric Laurente0720872014-03-11 09:30:41 -07002014status_t AudioPolicyManager::checkOutputsForDevice(audio_devices_t device,
Eric Laurent3b73df72014-03-11 09:06:29 -07002015 audio_policy_dev_state_t state,
Eric Laurente552edb2014-03-10 17:42:56 -07002016 SortedVector<audio_io_handle_t>& outputs,
Eric Laurent3a4311c2014-03-17 12:00:47 -07002017 const String8 address)
Eric Laurente552edb2014-03-10 17:42:56 -07002018{
2019 AudioOutputDescriptor *desc;
2020
Eric Laurent3b73df72014-03-11 09:06:29 -07002021 if (state == AUDIO_POLICY_DEVICE_STATE_AVAILABLE) {
Eric Laurente552edb2014-03-10 17:42:56 -07002022 // first list already open outputs that can be routed to this device
2023 for (size_t i = 0; i < mOutputs.size(); i++) {
2024 desc = mOutputs.valueAt(i);
Eric Laurent3a4311c2014-03-17 12:00:47 -07002025 if (!desc->isDuplicated() && (desc->mProfile->mSupportedDevices.types() & device)) {
Eric Laurente552edb2014-03-10 17:42:56 -07002026 ALOGV("checkOutputsForDevice(): adding opened output %d", mOutputs.keyAt(i));
2027 outputs.add(mOutputs.keyAt(i));
2028 }
2029 }
2030 // then look for output profiles that can be routed to this device
2031 SortedVector<IOProfile *> profiles;
2032 for (size_t i = 0; i < mHwModules.size(); i++)
2033 {
2034 if (mHwModules[i]->mHandle == 0) {
2035 continue;
2036 }
2037 for (size_t j = 0; j < mHwModules[i]->mOutputProfiles.size(); j++)
2038 {
Eric Laurent3a4311c2014-03-17 12:00:47 -07002039 if (mHwModules[i]->mOutputProfiles[j]->mSupportedDevices.types() & device) {
Eric Laurentd4692962014-05-05 18:13:44 -07002040 ALOGV("checkOutputsForDevice(): adding profile %zu from module %zu", j, i);
Eric Laurente552edb2014-03-10 17:42:56 -07002041 profiles.add(mHwModules[i]->mOutputProfiles[j]);
2042 }
2043 }
2044 }
2045
2046 if (profiles.isEmpty() && outputs.isEmpty()) {
2047 ALOGW("checkOutputsForDevice(): No output available for device %04x", device);
2048 return BAD_VALUE;
2049 }
2050
2051 // open outputs for matching profiles if needed. Direct outputs are also opened to
2052 // query for dynamic parameters and will be closed later by setDeviceConnectionState()
2053 for (ssize_t profile_index = 0; profile_index < (ssize_t)profiles.size(); profile_index++) {
2054 IOProfile *profile = profiles[profile_index];
2055
2056 // nothing to do if one output is already opened for this profile
2057 size_t j;
2058 for (j = 0; j < mOutputs.size(); j++) {
2059 desc = mOutputs.valueAt(j);
2060 if (!desc->isDuplicated() && desc->mProfile == profile) {
2061 break;
2062 }
2063 }
2064 if (j != mOutputs.size()) {
2065 continue;
2066 }
2067
Eric Laurent3a4311c2014-03-17 12:00:47 -07002068 ALOGV("opening output for device %08x with params %s", device, address.string());
Eric Laurente552edb2014-03-10 17:42:56 -07002069 desc = new AudioOutputDescriptor(profile);
2070 desc->mDevice = device;
2071 audio_offload_info_t offloadInfo = AUDIO_INFO_INITIALIZER;
2072 offloadInfo.sample_rate = desc->mSamplingRate;
2073 offloadInfo.format = desc->mFormat;
2074 offloadInfo.channel_mask = desc->mChannelMask;
2075
2076 audio_io_handle_t output = mpClientInterface->openOutput(profile->mModule->mHandle,
2077 &desc->mDevice,
2078 &desc->mSamplingRate,
2079 &desc->mFormat,
2080 &desc->mChannelMask,
2081 &desc->mLatency,
2082 desc->mFlags,
2083 &offloadInfo);
2084 if (output != 0) {
Eric Laurentd4692962014-05-05 18:13:44 -07002085 // Here is where the out_set_parameters() for card & device gets called
Eric Laurent3a4311c2014-03-17 12:00:47 -07002086 if (!address.isEmpty()) {
2087 mpClientInterface->setParameters(output, addressToParameter(device, address));
Eric Laurente552edb2014-03-10 17:42:56 -07002088 }
2089
Eric Laurentd4692962014-05-05 18:13:44 -07002090 // Here is where we step through and resolve any "dynamic" fields
2091 String8 reply;
2092 char *value;
2093 if (profile->mSamplingRates[0] == 0) {
2094 reply = mpClientInterface->getParameters(output,
2095 String8(AUDIO_PARAMETER_STREAM_SUP_SAMPLING_RATES));
2096 ALOGV("checkOutputsForDevice() direct output sup sampling rates %s",
2097 reply.string());
2098 value = strpbrk((char *)reply.string(), "=");
2099 if (value != NULL) {
2100 loadSamplingRates(value + 1, profile);
Eric Laurente552edb2014-03-10 17:42:56 -07002101 }
Eric Laurentd4692962014-05-05 18:13:44 -07002102 }
2103 if (profile->mFormats[0] == AUDIO_FORMAT_DEFAULT) {
2104 reply = mpClientInterface->getParameters(output,
2105 String8(AUDIO_PARAMETER_STREAM_SUP_FORMATS));
2106 ALOGV("checkOutputsForDevice() direct output sup formats %s",
2107 reply.string());
2108 value = strpbrk((char *)reply.string(), "=");
2109 if (value != NULL) {
2110 loadFormats(value + 1, profile);
Eric Laurente552edb2014-03-10 17:42:56 -07002111 }
Eric Laurentd4692962014-05-05 18:13:44 -07002112 }
2113 if (profile->mChannelMasks[0] == 0) {
2114 reply = mpClientInterface->getParameters(output,
2115 String8(AUDIO_PARAMETER_STREAM_SUP_CHANNELS));
2116 ALOGV("checkOutputsForDevice() direct output sup channel masks %s",
2117 reply.string());
2118 value = strpbrk((char *)reply.string(), "=");
2119 if (value != NULL) {
2120 loadOutChannels(value + 1, profile);
Eric Laurente552edb2014-03-10 17:42:56 -07002121 }
Eric Laurentd4692962014-05-05 18:13:44 -07002122 }
2123 if (((profile->mSamplingRates[0] == 0) &&
2124 (profile->mSamplingRates.size() < 2)) ||
2125 ((profile->mFormats[0] == AUDIO_FORMAT_DEFAULT) &&
2126 (profile->mFormats.size() < 2)) ||
2127 ((profile->mChannelMasks[0] == 0) &&
2128 (profile->mChannelMasks.size() < 2))) {
2129 ALOGW("checkOutputsForDevice() direct output missing param");
2130 mpClientInterface->closeOutput(output);
2131 output = 0;
2132 } else if (profile->mSamplingRates[0] == 0) {
2133 mpClientInterface->closeOutput(output);
2134 desc->mSamplingRate = profile->mSamplingRates[1];
2135 offloadInfo.sample_rate = desc->mSamplingRate;
2136 output = mpClientInterface->openOutput(
2137 profile->mModule->mHandle,
2138 &desc->mDevice,
2139 &desc->mSamplingRate,
2140 &desc->mFormat,
2141 &desc->mChannelMask,
2142 &desc->mLatency,
2143 desc->mFlags,
2144 &offloadInfo);
2145 }
2146
2147 if (output != 0) {
Eric Laurente552edb2014-03-10 17:42:56 -07002148 addOutput(output, desc);
Eric Laurentd4692962014-05-05 18:13:44 -07002149 if ((desc->mFlags & AUDIO_OUTPUT_FLAG_DIRECT) == 0) {
2150 audio_io_handle_t duplicatedOutput = 0;
Eric Laurente552edb2014-03-10 17:42:56 -07002151
Eric Laurentd4692962014-05-05 18:13:44 -07002152 // set initial stream volume for device
2153 applyStreamVolumes(output, device, 0, true);
Eric Laurente552edb2014-03-10 17:42:56 -07002154
Eric Laurentd4692962014-05-05 18:13:44 -07002155 //TODO: configure audio effect output stage here
2156
2157 // open a duplicating output thread for the new output and the primary output
2158 duplicatedOutput = mpClientInterface->openDuplicateOutput(output,
2159 mPrimaryOutput);
2160 if (duplicatedOutput != 0) {
2161 // add duplicated output descriptor
2162 AudioOutputDescriptor *dupOutputDesc = new AudioOutputDescriptor(NULL);
2163 dupOutputDesc->mOutput1 = mOutputs.valueFor(mPrimaryOutput);
2164 dupOutputDesc->mOutput2 = mOutputs.valueFor(output);
2165 dupOutputDesc->mSamplingRate = desc->mSamplingRate;
2166 dupOutputDesc->mFormat = desc->mFormat;
2167 dupOutputDesc->mChannelMask = desc->mChannelMask;
2168 dupOutputDesc->mLatency = desc->mLatency;
2169 addOutput(duplicatedOutput, dupOutputDesc);
2170 applyStreamVolumes(duplicatedOutput, device, 0, true);
2171 } else {
2172 ALOGW("checkOutputsForDevice() could not open dup output for %d and %d",
2173 mPrimaryOutput, output);
2174 mpClientInterface->closeOutput(output);
2175 mOutputs.removeItem(output);
2176 output = 0;
2177 }
Eric Laurente552edb2014-03-10 17:42:56 -07002178 }
2179 }
2180 }
2181 if (output == 0) {
2182 ALOGW("checkOutputsForDevice() could not open output for device %x", device);
2183 delete desc;
2184 profiles.removeAt(profile_index);
2185 profile_index--;
2186 } else {
2187 outputs.add(output);
2188 ALOGV("checkOutputsForDevice(): adding output %d", output);
2189 }
2190 }
2191
2192 if (profiles.isEmpty()) {
2193 ALOGW("checkOutputsForDevice(): No output available for device %04x", device);
2194 return BAD_VALUE;
2195 }
Eric Laurentd4692962014-05-05 18:13:44 -07002196 } else { // Disconnect
Eric Laurente552edb2014-03-10 17:42:56 -07002197 // check if one opened output is not needed any more after disconnecting one device
2198 for (size_t i = 0; i < mOutputs.size(); i++) {
2199 desc = mOutputs.valueAt(i);
2200 if (!desc->isDuplicated() &&
Eric Laurent3a4311c2014-03-17 12:00:47 -07002201 !(desc->mProfile->mSupportedDevices.types() &
2202 mAvailableOutputDevices.types())) {
Eric Laurente552edb2014-03-10 17:42:56 -07002203 ALOGV("checkOutputsForDevice(): disconnecting adding output %d", mOutputs.keyAt(i));
2204 outputs.add(mOutputs.keyAt(i));
2205 }
2206 }
Eric Laurentd4692962014-05-05 18:13:44 -07002207 // Clear any profiles associated with the disconnected device.
Eric Laurente552edb2014-03-10 17:42:56 -07002208 for (size_t i = 0; i < mHwModules.size(); i++)
2209 {
2210 if (mHwModules[i]->mHandle == 0) {
2211 continue;
2212 }
2213 for (size_t j = 0; j < mHwModules[i]->mOutputProfiles.size(); j++)
2214 {
2215 IOProfile *profile = mHwModules[i]->mOutputProfiles[j];
Eric Laurentd4692962014-05-05 18:13:44 -07002216 if (profile->mSupportedDevices.types() & device) {
2217 ALOGV("checkOutputsForDevice(): "
2218 "clearing direct output profile %zu on module %zu", j, i);
Eric Laurente552edb2014-03-10 17:42:56 -07002219 if (profile->mSamplingRates[0] == 0) {
2220 profile->mSamplingRates.clear();
2221 profile->mSamplingRates.add(0);
2222 }
2223 if (profile->mFormats[0] == AUDIO_FORMAT_DEFAULT) {
2224 profile->mFormats.clear();
2225 profile->mFormats.add(AUDIO_FORMAT_DEFAULT);
2226 }
2227 if (profile->mChannelMasks[0] == 0) {
2228 profile->mChannelMasks.clear();
2229 profile->mChannelMasks.add(0);
2230 }
2231 }
2232 }
2233 }
2234 }
2235 return NO_ERROR;
2236}
2237
Eric Laurentd4692962014-05-05 18:13:44 -07002238status_t AudioPolicyManager::checkInputsForDevice(audio_devices_t device,
2239 audio_policy_dev_state_t state,
2240 SortedVector<audio_io_handle_t>& inputs,
2241 const String8 address)
2242{
2243 AudioInputDescriptor *desc;
2244 if (state == AUDIO_POLICY_DEVICE_STATE_AVAILABLE) {
2245 // first list already open inputs that can be routed to this device
2246 for (size_t input_index = 0; input_index < mInputs.size(); input_index++) {
2247 desc = mInputs.valueAt(input_index);
2248 if (desc->mProfile->mSupportedDevices.types() & (device & ~AUDIO_DEVICE_BIT_IN)) {
2249 ALOGV("checkInputsForDevice(): adding opened input %d", mInputs.keyAt(input_index));
2250 inputs.add(mInputs.keyAt(input_index));
2251 }
2252 }
2253
2254 // then look for input profiles that can be routed to this device
2255 SortedVector<IOProfile *> profiles;
2256 for (size_t module_idx = 0; module_idx < mHwModules.size(); module_idx++)
2257 {
2258 if (mHwModules[module_idx]->mHandle == 0) {
2259 continue;
2260 }
2261 for (size_t profile_index = 0;
2262 profile_index < mHwModules[module_idx]->mInputProfiles.size();
2263 profile_index++)
2264 {
2265 if (mHwModules[module_idx]->mInputProfiles[profile_index]->mSupportedDevices.types()
2266 & (device & ~AUDIO_DEVICE_BIT_IN)) {
2267 ALOGV("checkInputsForDevice(): adding profile %d from module %d",
2268 profile_index, module_idx);
2269 profiles.add(mHwModules[module_idx]->mInputProfiles[profile_index]);
2270 }
2271 }
2272 }
2273
2274 if (profiles.isEmpty() && inputs.isEmpty()) {
2275 ALOGW("checkInputsForDevice(): No input available for device 0x%X", device);
2276 return BAD_VALUE;
2277 }
2278
2279 // open inputs for matching profiles if needed. Direct inputs are also opened to
2280 // query for dynamic parameters and will be closed later by setDeviceConnectionState()
2281 for (ssize_t profile_index = 0; profile_index < (ssize_t)profiles.size(); profile_index++) {
2282
2283 IOProfile *profile = profiles[profile_index];
2284 // nothing to do if one input is already opened for this profile
2285 size_t input_index;
2286 for (input_index = 0; input_index < mInputs.size(); input_index++) {
2287 desc = mInputs.valueAt(input_index);
2288 if (desc->mProfile == profile) {
2289 break;
2290 }
2291 }
2292 if (input_index != mInputs.size()) {
2293 continue;
2294 }
2295
2296 ALOGV("opening input for device 0x%X with params %s", device, address.string());
2297 desc = new AudioInputDescriptor(profile);
2298 desc->mDevice = device;
2299
2300 audio_io_handle_t input = mpClientInterface->openInput(profile->mModule->mHandle,
2301 &desc->mDevice,
2302 &desc->mSamplingRate,
2303 &desc->mFormat,
2304 &desc->mChannelMask);
2305
2306 if (input != 0) {
2307 if (!address.isEmpty()) {
2308 mpClientInterface->setParameters(input, addressToParameter(device, address));
2309 }
2310
2311 // Here is where we step through and resolve any "dynamic" fields
2312 String8 reply;
2313 char *value;
2314 if (profile->mSamplingRates[0] == 0) {
2315 reply = mpClientInterface->getParameters(input,
2316 String8(AUDIO_PARAMETER_STREAM_SUP_SAMPLING_RATES));
2317 ALOGV("checkInputsForDevice() direct input sup sampling rates %s",
2318 reply.string());
2319 value = strpbrk((char *)reply.string(), "=");
2320 if (value != NULL) {
2321 loadSamplingRates(value + 1, profile);
2322 }
2323 }
2324 if (profile->mFormats[0] == AUDIO_FORMAT_DEFAULT) {
2325 reply = mpClientInterface->getParameters(input,
2326 String8(AUDIO_PARAMETER_STREAM_SUP_FORMATS));
2327 ALOGV("checkInputsForDevice() direct input sup formats %s", reply.string());
2328 value = strpbrk((char *)reply.string(), "=");
2329 if (value != NULL) {
2330 loadFormats(value + 1, profile);
2331 }
2332 }
2333 if (profile->mChannelMasks[0] == 0) {
2334 reply = mpClientInterface->getParameters(input,
2335 String8(AUDIO_PARAMETER_STREAM_SUP_CHANNELS));
2336 ALOGV("checkInputsForDevice() direct input sup channel masks %s",
2337 reply.string());
2338 value = strpbrk((char *)reply.string(), "=");
2339 if (value != NULL) {
2340 loadInChannels(value + 1, profile);
2341 }
2342 }
2343 if (((profile->mSamplingRates[0] == 0) && (profile->mSamplingRates.size() < 2)) ||
2344 ((profile->mFormats[0] == 0) && (profile->mFormats.size() < 2)) ||
2345 ((profile->mChannelMasks[0] == 0) && (profile->mChannelMasks.size() < 2))) {
2346 ALOGW("checkInputsForDevice() direct input missing param");
2347 mpClientInterface->closeInput(input);
2348 input = 0;
2349 }
2350
2351 if (input != 0) {
2352 addInput(input, desc);
2353 }
2354 } // endif input != 0
2355
2356 if (input == 0) {
2357 ALOGW("checkInputsForDevice() could not open input for device 0x%X", device);
2358 delete desc;
2359 profiles.removeAt(profile_index);
2360 profile_index--;
2361 } else {
2362 inputs.add(input);
2363 ALOGV("checkInputsForDevice(): adding input %d", input);
2364 }
2365 } // end scan profiles
2366
2367 if (profiles.isEmpty()) {
2368 ALOGW("checkInputsForDevice(): No input available for device 0x%X", device);
2369 return BAD_VALUE;
2370 }
2371 } else {
2372 // Disconnect
2373 // check if one opened input is not needed any more after disconnecting one device
2374 for (size_t input_index = 0; input_index < mInputs.size(); input_index++) {
2375 desc = mInputs.valueAt(input_index);
2376 if (!(desc->mProfile->mSupportedDevices.types() & mAvailableInputDevices.types())) {
2377 ALOGV("checkInputsForDevice(): disconnecting adding input %d",
2378 mInputs.keyAt(input_index));
2379 inputs.add(mInputs.keyAt(input_index));
2380 }
2381 }
2382 // Clear any profiles associated with the disconnected device.
2383 for (size_t module_index = 0; module_index < mHwModules.size(); module_index++) {
2384 if (mHwModules[module_index]->mHandle == 0) {
2385 continue;
2386 }
2387 for (size_t profile_index = 0;
2388 profile_index < mHwModules[module_index]->mInputProfiles.size();
2389 profile_index++) {
2390 IOProfile *profile = mHwModules[module_index]->mInputProfiles[profile_index];
2391 if (profile->mSupportedDevices.types() & device) {
2392 ALOGV("checkInputsForDevice(): clearing direct input profile %d on module %d",
2393 profile_index, module_index);
2394 if (profile->mSamplingRates[0] == 0) {
2395 profile->mSamplingRates.clear();
2396 profile->mSamplingRates.add(0);
2397 }
2398 if (profile->mFormats[0] == AUDIO_FORMAT_DEFAULT) {
2399 profile->mFormats.clear();
2400 profile->mFormats.add(AUDIO_FORMAT_DEFAULT);
2401 }
2402 if (profile->mChannelMasks[0] == 0) {
2403 profile->mChannelMasks.clear();
2404 profile->mChannelMasks.add(0);
2405 }
2406 }
2407 }
2408 }
2409 } // end disconnect
2410
2411 return NO_ERROR;
2412}
2413
2414
Eric Laurente0720872014-03-11 09:30:41 -07002415void AudioPolicyManager::closeOutput(audio_io_handle_t output)
Eric Laurente552edb2014-03-10 17:42:56 -07002416{
2417 ALOGV("closeOutput(%d)", output);
2418
2419 AudioOutputDescriptor *outputDesc = mOutputs.valueFor(output);
2420 if (outputDesc == NULL) {
2421 ALOGW("closeOutput() unknown output %d", output);
2422 return;
2423 }
2424
2425 // look for duplicated outputs connected to the output being removed.
2426 for (size_t i = 0; i < mOutputs.size(); i++) {
2427 AudioOutputDescriptor *dupOutputDesc = mOutputs.valueAt(i);
2428 if (dupOutputDesc->isDuplicated() &&
2429 (dupOutputDesc->mOutput1 == outputDesc ||
2430 dupOutputDesc->mOutput2 == outputDesc)) {
2431 AudioOutputDescriptor *outputDesc2;
2432 if (dupOutputDesc->mOutput1 == outputDesc) {
2433 outputDesc2 = dupOutputDesc->mOutput2;
2434 } else {
2435 outputDesc2 = dupOutputDesc->mOutput1;
2436 }
2437 // As all active tracks on duplicated output will be deleted,
2438 // and as they were also referenced on the other output, the reference
2439 // count for their stream type must be adjusted accordingly on
2440 // the other output.
Eric Laurent3b73df72014-03-11 09:06:29 -07002441 for (int j = 0; j < AUDIO_STREAM_CNT; j++) {
Eric Laurente552edb2014-03-10 17:42:56 -07002442 int refCount = dupOutputDesc->mRefCount[j];
Eric Laurent3b73df72014-03-11 09:06:29 -07002443 outputDesc2->changeRefCount((audio_stream_type_t)j,-refCount);
Eric Laurente552edb2014-03-10 17:42:56 -07002444 }
2445 audio_io_handle_t duplicatedOutput = mOutputs.keyAt(i);
2446 ALOGV("closeOutput() closing also duplicated output %d", duplicatedOutput);
2447
2448 mpClientInterface->closeOutput(duplicatedOutput);
2449 delete mOutputs.valueFor(duplicatedOutput);
2450 mOutputs.removeItem(duplicatedOutput);
2451 }
2452 }
2453
2454 AudioParameter param;
2455 param.add(String8("closing"), String8("true"));
2456 mpClientInterface->setParameters(output, param.toString());
2457
2458 mpClientInterface->closeOutput(output);
2459 delete outputDesc;
2460 mOutputs.removeItem(output);
2461 mPreviousOutputs = mOutputs;
2462}
2463
Eric Laurente0720872014-03-11 09:30:41 -07002464SortedVector<audio_io_handle_t> AudioPolicyManager::getOutputsForDevice(audio_devices_t device,
Eric Laurente552edb2014-03-10 17:42:56 -07002465 DefaultKeyedVector<audio_io_handle_t, AudioOutputDescriptor *> openOutputs)
2466{
2467 SortedVector<audio_io_handle_t> outputs;
2468
2469 ALOGVV("getOutputsForDevice() device %04x", device);
2470 for (size_t i = 0; i < openOutputs.size(); i++) {
2471 ALOGVV("output %d isDuplicated=%d device=%04x",
2472 i, openOutputs.valueAt(i)->isDuplicated(), openOutputs.valueAt(i)->supportedDevices());
2473 if ((device & openOutputs.valueAt(i)->supportedDevices()) == device) {
2474 ALOGVV("getOutputsForDevice() found output %d", openOutputs.keyAt(i));
2475 outputs.add(openOutputs.keyAt(i));
2476 }
2477 }
2478 return outputs;
2479}
2480
Eric Laurente0720872014-03-11 09:30:41 -07002481bool AudioPolicyManager::vectorsEqual(SortedVector<audio_io_handle_t>& outputs1,
Eric Laurente552edb2014-03-10 17:42:56 -07002482 SortedVector<audio_io_handle_t>& outputs2)
2483{
2484 if (outputs1.size() != outputs2.size()) {
2485 return false;
2486 }
2487 for (size_t i = 0; i < outputs1.size(); i++) {
2488 if (outputs1[i] != outputs2[i]) {
2489 return false;
2490 }
2491 }
2492 return true;
2493}
2494
Eric Laurente0720872014-03-11 09:30:41 -07002495void AudioPolicyManager::checkOutputForStrategy(routing_strategy strategy)
Eric Laurente552edb2014-03-10 17:42:56 -07002496{
2497 audio_devices_t oldDevice = getDeviceForStrategy(strategy, true /*fromCache*/);
2498 audio_devices_t newDevice = getDeviceForStrategy(strategy, false /*fromCache*/);
2499 SortedVector<audio_io_handle_t> srcOutputs = getOutputsForDevice(oldDevice, mPreviousOutputs);
2500 SortedVector<audio_io_handle_t> dstOutputs = getOutputsForDevice(newDevice, mOutputs);
2501
2502 if (!vectorsEqual(srcOutputs,dstOutputs)) {
2503 ALOGV("checkOutputForStrategy() strategy %d, moving from output %d to output %d",
2504 strategy, srcOutputs[0], dstOutputs[0]);
2505 // mute strategy while moving tracks from one output to another
2506 for (size_t i = 0; i < srcOutputs.size(); i++) {
2507 AudioOutputDescriptor *desc = mOutputs.valueFor(srcOutputs[i]);
2508 if (desc->isStrategyActive(strategy)) {
2509 setStrategyMute(strategy, true, srcOutputs[i]);
2510 setStrategyMute(strategy, false, srcOutputs[i], MUTE_TIME_MS, newDevice);
2511 }
2512 }
2513
2514 // Move effects associated to this strategy from previous output to new output
2515 if (strategy == STRATEGY_MEDIA) {
2516 audio_io_handle_t fxOutput = selectOutputForEffects(dstOutputs);
2517 SortedVector<audio_io_handle_t> moved;
2518 for (size_t i = 0; i < mEffects.size(); i++) {
2519 EffectDescriptor *desc = mEffects.valueAt(i);
2520 if (desc->mSession == AUDIO_SESSION_OUTPUT_MIX &&
2521 desc->mIo != fxOutput) {
2522 if (moved.indexOf(desc->mIo) < 0) {
2523 ALOGV("checkOutputForStrategy() moving effect %d to output %d",
2524 mEffects.keyAt(i), fxOutput);
2525 mpClientInterface->moveEffects(AUDIO_SESSION_OUTPUT_MIX, desc->mIo,
2526 fxOutput);
2527 moved.add(desc->mIo);
2528 }
2529 desc->mIo = fxOutput;
2530 }
2531 }
2532 }
2533 // Move tracks associated to this strategy from previous output to new output
Eric Laurent3b73df72014-03-11 09:06:29 -07002534 for (int i = 0; i < AUDIO_STREAM_CNT; i++) {
2535 if (getStrategy((audio_stream_type_t)i) == strategy) {
2536 mpClientInterface->invalidateStream((audio_stream_type_t)i);
Eric Laurente552edb2014-03-10 17:42:56 -07002537 }
2538 }
2539 }
2540}
2541
Eric Laurente0720872014-03-11 09:30:41 -07002542void AudioPolicyManager::checkOutputForAllStrategies()
Eric Laurente552edb2014-03-10 17:42:56 -07002543{
2544 checkOutputForStrategy(STRATEGY_ENFORCED_AUDIBLE);
2545 checkOutputForStrategy(STRATEGY_PHONE);
2546 checkOutputForStrategy(STRATEGY_SONIFICATION);
2547 checkOutputForStrategy(STRATEGY_SONIFICATION_RESPECTFUL);
2548 checkOutputForStrategy(STRATEGY_MEDIA);
2549 checkOutputForStrategy(STRATEGY_DTMF);
2550}
2551
Eric Laurente0720872014-03-11 09:30:41 -07002552audio_io_handle_t AudioPolicyManager::getA2dpOutput()
Eric Laurente552edb2014-03-10 17:42:56 -07002553{
Eric Laurente552edb2014-03-10 17:42:56 -07002554 for (size_t i = 0; i < mOutputs.size(); i++) {
2555 AudioOutputDescriptor *outputDesc = mOutputs.valueAt(i);
2556 if (!outputDesc->isDuplicated() && outputDesc->device() & AUDIO_DEVICE_OUT_ALL_A2DP) {
2557 return mOutputs.keyAt(i);
2558 }
2559 }
2560
2561 return 0;
2562}
2563
Eric Laurente0720872014-03-11 09:30:41 -07002564void AudioPolicyManager::checkA2dpSuspend()
Eric Laurente552edb2014-03-10 17:42:56 -07002565{
Eric Laurente552edb2014-03-10 17:42:56 -07002566 audio_io_handle_t a2dpOutput = getA2dpOutput();
2567 if (a2dpOutput == 0) {
Eric Laurent3a4311c2014-03-17 12:00:47 -07002568 mA2dpSuspended = false;
Eric Laurente552edb2014-03-10 17:42:56 -07002569 return;
2570 }
2571
Eric Laurent3a4311c2014-03-17 12:00:47 -07002572 bool isScoConnected =
2573 (mAvailableInputDevices.types() & AUDIO_DEVICE_IN_BLUETOOTH_SCO_HEADSET) != 0;
Eric Laurente552edb2014-03-10 17:42:56 -07002574 // suspend A2DP output if:
2575 // (NOT already suspended) &&
2576 // ((SCO device is connected &&
2577 // (forced usage for communication || for record is SCO))) ||
2578 // (phone state is ringing || in call)
2579 //
2580 // restore A2DP output if:
2581 // (Already suspended) &&
2582 // ((SCO device is NOT connected ||
2583 // (forced usage NOT for communication && NOT for record is SCO))) &&
2584 // (phone state is NOT ringing && NOT in call)
2585 //
2586 if (mA2dpSuspended) {
Eric Laurent3a4311c2014-03-17 12:00:47 -07002587 if ((!isScoConnected ||
Eric Laurent3b73df72014-03-11 09:06:29 -07002588 ((mForceUse[AUDIO_POLICY_FORCE_FOR_COMMUNICATION] != AUDIO_POLICY_FORCE_BT_SCO) &&
2589 (mForceUse[AUDIO_POLICY_FORCE_FOR_RECORD] != AUDIO_POLICY_FORCE_BT_SCO))) &&
2590 ((mPhoneState != AUDIO_MODE_IN_CALL) &&
2591 (mPhoneState != AUDIO_MODE_RINGTONE))) {
Eric Laurente552edb2014-03-10 17:42:56 -07002592
2593 mpClientInterface->restoreOutput(a2dpOutput);
2594 mA2dpSuspended = false;
2595 }
2596 } else {
Eric Laurent3a4311c2014-03-17 12:00:47 -07002597 if ((isScoConnected &&
Eric Laurent3b73df72014-03-11 09:06:29 -07002598 ((mForceUse[AUDIO_POLICY_FORCE_FOR_COMMUNICATION] == AUDIO_POLICY_FORCE_BT_SCO) ||
2599 (mForceUse[AUDIO_POLICY_FORCE_FOR_RECORD] == AUDIO_POLICY_FORCE_BT_SCO))) ||
2600 ((mPhoneState == AUDIO_MODE_IN_CALL) ||
2601 (mPhoneState == AUDIO_MODE_RINGTONE))) {
Eric Laurente552edb2014-03-10 17:42:56 -07002602
2603 mpClientInterface->suspendOutput(a2dpOutput);
2604 mA2dpSuspended = true;
2605 }
2606 }
2607}
2608
Eric Laurente0720872014-03-11 09:30:41 -07002609audio_devices_t AudioPolicyManager::getNewDevice(audio_io_handle_t output, bool fromCache)
Eric Laurente552edb2014-03-10 17:42:56 -07002610{
2611 audio_devices_t device = AUDIO_DEVICE_NONE;
2612
2613 AudioOutputDescriptor *outputDesc = mOutputs.valueFor(output);
2614 // check the following by order of priority to request a routing change if necessary:
2615 // 1: the strategy enforced audible is active on the output:
2616 // use device for strategy enforced audible
2617 // 2: we are in call or the strategy phone is active on the output:
2618 // use device for strategy phone
2619 // 3: the strategy sonification is active on the output:
2620 // use device for strategy sonification
2621 // 4: the strategy "respectful" sonification is active on the output:
2622 // use device for strategy "respectful" sonification
2623 // 5: the strategy media is active on the output:
2624 // use device for strategy media
2625 // 6: the strategy DTMF is active on the output:
2626 // use device for strategy DTMF
2627 if (outputDesc->isStrategyActive(STRATEGY_ENFORCED_AUDIBLE)) {
2628 device = getDeviceForStrategy(STRATEGY_ENFORCED_AUDIBLE, fromCache);
2629 } else if (isInCall() ||
2630 outputDesc->isStrategyActive(STRATEGY_PHONE)) {
2631 device = getDeviceForStrategy(STRATEGY_PHONE, fromCache);
2632 } else if (outputDesc->isStrategyActive(STRATEGY_SONIFICATION)) {
2633 device = getDeviceForStrategy(STRATEGY_SONIFICATION, fromCache);
2634 } else if (outputDesc->isStrategyActive(STRATEGY_SONIFICATION_RESPECTFUL)) {
2635 device = getDeviceForStrategy(STRATEGY_SONIFICATION_RESPECTFUL, fromCache);
2636 } else if (outputDesc->isStrategyActive(STRATEGY_MEDIA)) {
2637 device = getDeviceForStrategy(STRATEGY_MEDIA, fromCache);
2638 } else if (outputDesc->isStrategyActive(STRATEGY_DTMF)) {
2639 device = getDeviceForStrategy(STRATEGY_DTMF, fromCache);
2640 }
2641
2642 ALOGV("getNewDevice() selected device %x", device);
2643 return device;
2644}
2645
Eric Laurente0720872014-03-11 09:30:41 -07002646uint32_t AudioPolicyManager::getStrategyForStream(audio_stream_type_t stream) {
Eric Laurente552edb2014-03-10 17:42:56 -07002647 return (uint32_t)getStrategy(stream);
2648}
2649
Eric Laurente0720872014-03-11 09:30:41 -07002650audio_devices_t AudioPolicyManager::getDevicesForStream(audio_stream_type_t stream) {
Eric Laurente552edb2014-03-10 17:42:56 -07002651 audio_devices_t devices;
2652 // By checking the range of stream before calling getStrategy, we avoid
2653 // getStrategy's behavior for invalid streams. getStrategy would do a ALOGE
2654 // and then return STRATEGY_MEDIA, but we want to return the empty set.
Eric Laurent3b73df72014-03-11 09:06:29 -07002655 if (stream < (audio_stream_type_t) 0 || stream >= AUDIO_STREAM_CNT) {
Eric Laurente552edb2014-03-10 17:42:56 -07002656 devices = AUDIO_DEVICE_NONE;
2657 } else {
Eric Laurente0720872014-03-11 09:30:41 -07002658 AudioPolicyManager::routing_strategy strategy = getStrategy(stream);
Eric Laurente552edb2014-03-10 17:42:56 -07002659 devices = getDeviceForStrategy(strategy, true /*fromCache*/);
2660 }
2661 return devices;
2662}
2663
Eric Laurente0720872014-03-11 09:30:41 -07002664AudioPolicyManager::routing_strategy AudioPolicyManager::getStrategy(
Eric Laurent3b73df72014-03-11 09:06:29 -07002665 audio_stream_type_t stream) {
Eric Laurente552edb2014-03-10 17:42:56 -07002666 // stream to strategy mapping
2667 switch (stream) {
Eric Laurent3b73df72014-03-11 09:06:29 -07002668 case AUDIO_STREAM_VOICE_CALL:
2669 case AUDIO_STREAM_BLUETOOTH_SCO:
Eric Laurente552edb2014-03-10 17:42:56 -07002670 return STRATEGY_PHONE;
Eric Laurent3b73df72014-03-11 09:06:29 -07002671 case AUDIO_STREAM_RING:
2672 case AUDIO_STREAM_ALARM:
Eric Laurente552edb2014-03-10 17:42:56 -07002673 return STRATEGY_SONIFICATION;
Eric Laurent3b73df72014-03-11 09:06:29 -07002674 case AUDIO_STREAM_NOTIFICATION:
Eric Laurente552edb2014-03-10 17:42:56 -07002675 return STRATEGY_SONIFICATION_RESPECTFUL;
Eric Laurent3b73df72014-03-11 09:06:29 -07002676 case AUDIO_STREAM_DTMF:
Eric Laurente552edb2014-03-10 17:42:56 -07002677 return STRATEGY_DTMF;
2678 default:
2679 ALOGE("unknown stream type");
Eric Laurent3b73df72014-03-11 09:06:29 -07002680 case AUDIO_STREAM_SYSTEM:
Eric Laurente552edb2014-03-10 17:42:56 -07002681 // NOTE: SYSTEM stream uses MEDIA strategy because muting music and switching outputs
2682 // while key clicks are played produces a poor result
Eric Laurent3b73df72014-03-11 09:06:29 -07002683 case AUDIO_STREAM_TTS:
2684 case AUDIO_STREAM_MUSIC:
Eric Laurente552edb2014-03-10 17:42:56 -07002685 return STRATEGY_MEDIA;
Eric Laurent3b73df72014-03-11 09:06:29 -07002686 case AUDIO_STREAM_ENFORCED_AUDIBLE:
Eric Laurente552edb2014-03-10 17:42:56 -07002687 return STRATEGY_ENFORCED_AUDIBLE;
2688 }
2689}
2690
Eric Laurente0720872014-03-11 09:30:41 -07002691void AudioPolicyManager::handleNotificationRoutingForStream(audio_stream_type_t stream) {
Eric Laurente552edb2014-03-10 17:42:56 -07002692 switch(stream) {
Eric Laurent3b73df72014-03-11 09:06:29 -07002693 case AUDIO_STREAM_MUSIC:
Eric Laurente552edb2014-03-10 17:42:56 -07002694 checkOutputForStrategy(STRATEGY_SONIFICATION_RESPECTFUL);
2695 updateDevicesAndOutputs();
2696 break;
2697 default:
2698 break;
2699 }
2700}
2701
Eric Laurente0720872014-03-11 09:30:41 -07002702audio_devices_t AudioPolicyManager::getDeviceForStrategy(routing_strategy strategy,
Eric Laurente552edb2014-03-10 17:42:56 -07002703 bool fromCache)
2704{
2705 uint32_t device = AUDIO_DEVICE_NONE;
2706
2707 if (fromCache) {
2708 ALOGVV("getDeviceForStrategy() from cache strategy %d, device %x",
2709 strategy, mDeviceForStrategy[strategy]);
2710 return mDeviceForStrategy[strategy];
2711 }
Eric Laurent3a4311c2014-03-17 12:00:47 -07002712 audio_devices_t availableOutputDeviceTypes = mAvailableOutputDevices.types();
Eric Laurente552edb2014-03-10 17:42:56 -07002713 switch (strategy) {
2714
2715 case STRATEGY_SONIFICATION_RESPECTFUL:
2716 if (isInCall()) {
2717 device = getDeviceForStrategy(STRATEGY_SONIFICATION, false /*fromCache*/);
Eric Laurent3b73df72014-03-11 09:06:29 -07002718 } else if (isStreamActiveRemotely(AUDIO_STREAM_MUSIC,
Eric Laurente552edb2014-03-10 17:42:56 -07002719 SONIFICATION_RESPECTFUL_AFTER_MUSIC_DELAY)) {
2720 // while media is playing on a remote device, use the the sonification behavior.
2721 // Note that we test this usecase before testing if media is playing because
2722 // the isStreamActive() method only informs about the activity of a stream, not
2723 // if it's for local playback. Note also that we use the same delay between both tests
2724 device = getDeviceForStrategy(STRATEGY_SONIFICATION, false /*fromCache*/);
Eric Laurent3b73df72014-03-11 09:06:29 -07002725 } else if (isStreamActive(AUDIO_STREAM_MUSIC, SONIFICATION_RESPECTFUL_AFTER_MUSIC_DELAY)) {
Eric Laurente552edb2014-03-10 17:42:56 -07002726 // while media is playing (or has recently played), use the same device
2727 device = getDeviceForStrategy(STRATEGY_MEDIA, false /*fromCache*/);
2728 } else {
2729 // when media is not playing anymore, fall back on the sonification behavior
2730 device = getDeviceForStrategy(STRATEGY_SONIFICATION, false /*fromCache*/);
2731 }
2732
2733 break;
2734
2735 case STRATEGY_DTMF:
2736 if (!isInCall()) {
2737 // when off call, DTMF strategy follows the same rules as MEDIA strategy
2738 device = getDeviceForStrategy(STRATEGY_MEDIA, false /*fromCache*/);
2739 break;
2740 }
2741 // when in call, DTMF and PHONE strategies follow the same rules
2742 // FALL THROUGH
2743
2744 case STRATEGY_PHONE:
2745 // for phone strategy, we first consider the forced use and then the available devices by order
2746 // of priority
Eric Laurent3b73df72014-03-11 09:06:29 -07002747 switch (mForceUse[AUDIO_POLICY_FORCE_FOR_COMMUNICATION]) {
2748 case AUDIO_POLICY_FORCE_BT_SCO:
Eric Laurente552edb2014-03-10 17:42:56 -07002749 if (!isInCall() || strategy != STRATEGY_DTMF) {
Eric Laurent3a4311c2014-03-17 12:00:47 -07002750 device = availableOutputDeviceTypes & AUDIO_DEVICE_OUT_BLUETOOTH_SCO_CARKIT;
Eric Laurente552edb2014-03-10 17:42:56 -07002751 if (device) break;
2752 }
Eric Laurent3a4311c2014-03-17 12:00:47 -07002753 device = availableOutputDeviceTypes & AUDIO_DEVICE_OUT_BLUETOOTH_SCO_HEADSET;
Eric Laurente552edb2014-03-10 17:42:56 -07002754 if (device) break;
Eric Laurent3a4311c2014-03-17 12:00:47 -07002755 device = availableOutputDeviceTypes & AUDIO_DEVICE_OUT_BLUETOOTH_SCO;
Eric Laurente552edb2014-03-10 17:42:56 -07002756 if (device) break;
2757 // if SCO device is requested but no SCO device is available, fall back to default case
2758 // FALL THROUGH
2759
2760 default: // FORCE_NONE
2761 // when not in a phone call, phone strategy should route STREAM_VOICE_CALL to A2DP
Eric Laurent3a4311c2014-03-17 12:00:47 -07002762 if (!isInCall() &&
Eric Laurent3b73df72014-03-11 09:06:29 -07002763 (mForceUse[AUDIO_POLICY_FORCE_FOR_MEDIA] != AUDIO_POLICY_FORCE_NO_BT_A2DP) &&
Eric Laurente552edb2014-03-10 17:42:56 -07002764 (getA2dpOutput() != 0) && !mA2dpSuspended) {
Eric Laurent3a4311c2014-03-17 12:00:47 -07002765 device = availableOutputDeviceTypes & AUDIO_DEVICE_OUT_BLUETOOTH_A2DP;
Eric Laurente552edb2014-03-10 17:42:56 -07002766 if (device) break;
Eric Laurent3a4311c2014-03-17 12:00:47 -07002767 device = availableOutputDeviceTypes & AUDIO_DEVICE_OUT_BLUETOOTH_A2DP_HEADPHONES;
Eric Laurente552edb2014-03-10 17:42:56 -07002768 if (device) break;
2769 }
Eric Laurent3a4311c2014-03-17 12:00:47 -07002770 device = availableOutputDeviceTypes & AUDIO_DEVICE_OUT_WIRED_HEADPHONE;
Eric Laurente552edb2014-03-10 17:42:56 -07002771 if (device) break;
Eric Laurent3a4311c2014-03-17 12:00:47 -07002772 device = availableOutputDeviceTypes & AUDIO_DEVICE_OUT_WIRED_HEADSET;
Eric Laurente552edb2014-03-10 17:42:56 -07002773 if (device) break;
Eric Laurent3b73df72014-03-11 09:06:29 -07002774 if (mPhoneState != AUDIO_MODE_IN_CALL) {
Eric Laurent3a4311c2014-03-17 12:00:47 -07002775 device = availableOutputDeviceTypes & AUDIO_DEVICE_OUT_USB_ACCESSORY;
Eric Laurente552edb2014-03-10 17:42:56 -07002776 if (device) break;
Eric Laurent3a4311c2014-03-17 12:00:47 -07002777 device = availableOutputDeviceTypes & AUDIO_DEVICE_OUT_USB_DEVICE;
Eric Laurente552edb2014-03-10 17:42:56 -07002778 if (device) break;
Eric Laurent3a4311c2014-03-17 12:00:47 -07002779 device = availableOutputDeviceTypes & AUDIO_DEVICE_OUT_DGTL_DOCK_HEADSET;
Eric Laurente552edb2014-03-10 17:42:56 -07002780 if (device) break;
Eric Laurent3a4311c2014-03-17 12:00:47 -07002781 device = availableOutputDeviceTypes & AUDIO_DEVICE_OUT_AUX_DIGITAL;
Eric Laurente552edb2014-03-10 17:42:56 -07002782 if (device) break;
Eric Laurent3a4311c2014-03-17 12:00:47 -07002783 device = availableOutputDeviceTypes & AUDIO_DEVICE_OUT_ANLG_DOCK_HEADSET;
Eric Laurente552edb2014-03-10 17:42:56 -07002784 if (device) break;
2785 }
Eric Laurent3a4311c2014-03-17 12:00:47 -07002786 device = availableOutputDeviceTypes & AUDIO_DEVICE_OUT_EARPIECE;
Eric Laurente552edb2014-03-10 17:42:56 -07002787 if (device) break;
Eric Laurent3a4311c2014-03-17 12:00:47 -07002788 device = mDefaultOutputDevice->mType;
Eric Laurente552edb2014-03-10 17:42:56 -07002789 if (device == AUDIO_DEVICE_NONE) {
2790 ALOGE("getDeviceForStrategy() no device found for STRATEGY_PHONE");
2791 }
2792 break;
2793
Eric Laurent3b73df72014-03-11 09:06:29 -07002794 case AUDIO_POLICY_FORCE_SPEAKER:
Eric Laurente552edb2014-03-10 17:42:56 -07002795 // when not in a phone call, phone strategy should route STREAM_VOICE_CALL to
2796 // A2DP speaker when forcing to speaker output
Eric Laurent3a4311c2014-03-17 12:00:47 -07002797 if (!isInCall() &&
Eric Laurent3b73df72014-03-11 09:06:29 -07002798 (mForceUse[AUDIO_POLICY_FORCE_FOR_MEDIA] != AUDIO_POLICY_FORCE_NO_BT_A2DP) &&
Eric Laurente552edb2014-03-10 17:42:56 -07002799 (getA2dpOutput() != 0) && !mA2dpSuspended) {
Eric Laurent3a4311c2014-03-17 12:00:47 -07002800 device = availableOutputDeviceTypes & AUDIO_DEVICE_OUT_BLUETOOTH_A2DP_SPEAKER;
Eric Laurente552edb2014-03-10 17:42:56 -07002801 if (device) break;
2802 }
Eric Laurent3b73df72014-03-11 09:06:29 -07002803 if (mPhoneState != AUDIO_MODE_IN_CALL) {
Eric Laurent3a4311c2014-03-17 12:00:47 -07002804 device = availableOutputDeviceTypes & AUDIO_DEVICE_OUT_USB_ACCESSORY;
Eric Laurente552edb2014-03-10 17:42:56 -07002805 if (device) break;
Eric Laurent3a4311c2014-03-17 12:00:47 -07002806 device = availableOutputDeviceTypes & AUDIO_DEVICE_OUT_USB_DEVICE;
Eric Laurente552edb2014-03-10 17:42:56 -07002807 if (device) break;
Eric Laurent3a4311c2014-03-17 12:00:47 -07002808 device = availableOutputDeviceTypes & AUDIO_DEVICE_OUT_DGTL_DOCK_HEADSET;
Eric Laurente552edb2014-03-10 17:42:56 -07002809 if (device) break;
Eric Laurent3a4311c2014-03-17 12:00:47 -07002810 device = availableOutputDeviceTypes & AUDIO_DEVICE_OUT_AUX_DIGITAL;
Eric Laurente552edb2014-03-10 17:42:56 -07002811 if (device) break;
Eric Laurent3a4311c2014-03-17 12:00:47 -07002812 device = availableOutputDeviceTypes & AUDIO_DEVICE_OUT_ANLG_DOCK_HEADSET;
Eric Laurente552edb2014-03-10 17:42:56 -07002813 if (device) break;
2814 }
Eric Laurent3a4311c2014-03-17 12:00:47 -07002815 device = availableOutputDeviceTypes & AUDIO_DEVICE_OUT_SPEAKER;
Eric Laurente552edb2014-03-10 17:42:56 -07002816 if (device) break;
Eric Laurent3a4311c2014-03-17 12:00:47 -07002817 device = mDefaultOutputDevice->mType;
Eric Laurente552edb2014-03-10 17:42:56 -07002818 if (device == AUDIO_DEVICE_NONE) {
2819 ALOGE("getDeviceForStrategy() no device found for STRATEGY_PHONE, FORCE_SPEAKER");
2820 }
2821 break;
2822 }
2823 break;
2824
2825 case STRATEGY_SONIFICATION:
2826
2827 // If incall, just select the STRATEGY_PHONE device: The rest of the behavior is handled by
2828 // handleIncallSonification().
2829 if (isInCall()) {
2830 device = getDeviceForStrategy(STRATEGY_PHONE, false /*fromCache*/);
2831 break;
2832 }
2833 // FALL THROUGH
2834
2835 case STRATEGY_ENFORCED_AUDIBLE:
2836 // strategy STRATEGY_ENFORCED_AUDIBLE uses same routing policy as STRATEGY_SONIFICATION
2837 // except:
2838 // - when in call where it doesn't default to STRATEGY_PHONE behavior
2839 // - in countries where not enforced in which case it follows STRATEGY_MEDIA
2840
2841 if ((strategy == STRATEGY_SONIFICATION) ||
Eric Laurent3b73df72014-03-11 09:06:29 -07002842 (mForceUse[AUDIO_POLICY_FORCE_FOR_SYSTEM] == AUDIO_POLICY_FORCE_SYSTEM_ENFORCED)) {
Eric Laurent3a4311c2014-03-17 12:00:47 -07002843 device = availableOutputDeviceTypes & AUDIO_DEVICE_OUT_SPEAKER;
Eric Laurente552edb2014-03-10 17:42:56 -07002844 if (device == AUDIO_DEVICE_NONE) {
2845 ALOGE("getDeviceForStrategy() speaker device not found for STRATEGY_SONIFICATION");
2846 }
2847 }
2848 // The second device used for sonification is the same as the device used by media strategy
2849 // FALL THROUGH
2850
2851 case STRATEGY_MEDIA: {
2852 uint32_t device2 = AUDIO_DEVICE_NONE;
2853 if (strategy != STRATEGY_SONIFICATION) {
2854 // no sonification on remote submix (e.g. WFD)
Eric Laurent3a4311c2014-03-17 12:00:47 -07002855 device2 = availableOutputDeviceTypes & AUDIO_DEVICE_OUT_REMOTE_SUBMIX;
Eric Laurente552edb2014-03-10 17:42:56 -07002856 }
2857 if ((device2 == AUDIO_DEVICE_NONE) &&
Eric Laurent3b73df72014-03-11 09:06:29 -07002858 (mForceUse[AUDIO_POLICY_FORCE_FOR_MEDIA] != AUDIO_POLICY_FORCE_NO_BT_A2DP) &&
Eric Laurente552edb2014-03-10 17:42:56 -07002859 (getA2dpOutput() != 0) && !mA2dpSuspended) {
Eric Laurent3a4311c2014-03-17 12:00:47 -07002860 device2 = availableOutputDeviceTypes & AUDIO_DEVICE_OUT_BLUETOOTH_A2DP;
Eric Laurente552edb2014-03-10 17:42:56 -07002861 if (device2 == AUDIO_DEVICE_NONE) {
Eric Laurent3a4311c2014-03-17 12:00:47 -07002862 device2 = availableOutputDeviceTypes & AUDIO_DEVICE_OUT_BLUETOOTH_A2DP_HEADPHONES;
Eric Laurente552edb2014-03-10 17:42:56 -07002863 }
2864 if (device2 == AUDIO_DEVICE_NONE) {
Eric Laurent3a4311c2014-03-17 12:00:47 -07002865 device2 = availableOutputDeviceTypes & AUDIO_DEVICE_OUT_BLUETOOTH_A2DP_SPEAKER;
Eric Laurente552edb2014-03-10 17:42:56 -07002866 }
2867 }
2868 if (device2 == AUDIO_DEVICE_NONE) {
Eric Laurent3a4311c2014-03-17 12:00:47 -07002869 device2 = availableOutputDeviceTypes & AUDIO_DEVICE_OUT_WIRED_HEADPHONE;
Eric Laurente552edb2014-03-10 17:42:56 -07002870 }
2871 if (device2 == AUDIO_DEVICE_NONE) {
Eric Laurent3a4311c2014-03-17 12:00:47 -07002872 device2 = availableOutputDeviceTypes & AUDIO_DEVICE_OUT_WIRED_HEADSET;
Eric Laurente552edb2014-03-10 17:42:56 -07002873 }
2874 if (device2 == AUDIO_DEVICE_NONE) {
Eric Laurent3a4311c2014-03-17 12:00:47 -07002875 device2 = availableOutputDeviceTypes & AUDIO_DEVICE_OUT_USB_ACCESSORY;
Eric Laurente552edb2014-03-10 17:42:56 -07002876 }
2877 if (device2 == AUDIO_DEVICE_NONE) {
Eric Laurent3a4311c2014-03-17 12:00:47 -07002878 device2 = availableOutputDeviceTypes & AUDIO_DEVICE_OUT_USB_DEVICE;
Eric Laurente552edb2014-03-10 17:42:56 -07002879 }
2880 if (device2 == AUDIO_DEVICE_NONE) {
Eric Laurent3a4311c2014-03-17 12:00:47 -07002881 device2 = availableOutputDeviceTypes & AUDIO_DEVICE_OUT_DGTL_DOCK_HEADSET;
Eric Laurente552edb2014-03-10 17:42:56 -07002882 }
2883 if ((device2 == AUDIO_DEVICE_NONE) && (strategy != STRATEGY_SONIFICATION)) {
2884 // no sonification on aux digital (e.g. HDMI)
Eric Laurent3a4311c2014-03-17 12:00:47 -07002885 device2 = availableOutputDeviceTypes & AUDIO_DEVICE_OUT_AUX_DIGITAL;
Eric Laurente552edb2014-03-10 17:42:56 -07002886 }
2887 if ((device2 == AUDIO_DEVICE_NONE) &&
Eric Laurent3b73df72014-03-11 09:06:29 -07002888 (mForceUse[AUDIO_POLICY_FORCE_FOR_DOCK] == AUDIO_POLICY_FORCE_ANALOG_DOCK)) {
Eric Laurent3a4311c2014-03-17 12:00:47 -07002889 device2 = availableOutputDeviceTypes & AUDIO_DEVICE_OUT_ANLG_DOCK_HEADSET;
Eric Laurente552edb2014-03-10 17:42:56 -07002890 }
2891 if (device2 == AUDIO_DEVICE_NONE) {
Eric Laurent3a4311c2014-03-17 12:00:47 -07002892 device2 = availableOutputDeviceTypes & AUDIO_DEVICE_OUT_SPEAKER;
Eric Laurente552edb2014-03-10 17:42:56 -07002893 }
2894
2895 // device is DEVICE_OUT_SPEAKER if we come from case STRATEGY_SONIFICATION or
2896 // STRATEGY_ENFORCED_AUDIBLE, AUDIO_DEVICE_NONE otherwise
2897 device |= device2;
2898 if (device) break;
Eric Laurent3a4311c2014-03-17 12:00:47 -07002899 device = mDefaultOutputDevice->mType;
Eric Laurente552edb2014-03-10 17:42:56 -07002900 if (device == AUDIO_DEVICE_NONE) {
2901 ALOGE("getDeviceForStrategy() no device found for STRATEGY_MEDIA");
2902 }
2903 } break;
2904
2905 default:
2906 ALOGW("getDeviceForStrategy() unknown strategy: %d", strategy);
2907 break;
2908 }
2909
2910 ALOGVV("getDeviceForStrategy() strategy %d, device %x", strategy, device);
2911 return device;
2912}
2913
Eric Laurente0720872014-03-11 09:30:41 -07002914void AudioPolicyManager::updateDevicesAndOutputs()
Eric Laurente552edb2014-03-10 17:42:56 -07002915{
2916 for (int i = 0; i < NUM_STRATEGIES; i++) {
2917 mDeviceForStrategy[i] = getDeviceForStrategy((routing_strategy)i, false /*fromCache*/);
2918 }
2919 mPreviousOutputs = mOutputs;
2920}
2921
Eric Laurente0720872014-03-11 09:30:41 -07002922uint32_t AudioPolicyManager::checkDeviceMuteStrategies(AudioOutputDescriptor *outputDesc,
Eric Laurente552edb2014-03-10 17:42:56 -07002923 audio_devices_t prevDevice,
2924 uint32_t delayMs)
2925{
2926 // mute/unmute strategies using an incompatible device combination
2927 // if muting, wait for the audio in pcm buffer to be drained before proceeding
2928 // if unmuting, unmute only after the specified delay
2929 if (outputDesc->isDuplicated()) {
2930 return 0;
2931 }
2932
2933 uint32_t muteWaitMs = 0;
2934 audio_devices_t device = outputDesc->device();
Eric Laurent3b73df72014-03-11 09:06:29 -07002935 bool shouldMute = outputDesc->isActive() && (popcount(device) >= 2);
Eric Laurente552edb2014-03-10 17:42:56 -07002936
2937 for (size_t i = 0; i < NUM_STRATEGIES; i++) {
2938 audio_devices_t curDevice = getDeviceForStrategy((routing_strategy)i, false /*fromCache*/);
2939 bool mute = shouldMute && (curDevice & device) && (curDevice != device);
2940 bool doMute = false;
2941
2942 if (mute && !outputDesc->mStrategyMutedByDevice[i]) {
2943 doMute = true;
2944 outputDesc->mStrategyMutedByDevice[i] = true;
2945 } else if (!mute && outputDesc->mStrategyMutedByDevice[i]){
2946 doMute = true;
2947 outputDesc->mStrategyMutedByDevice[i] = false;
2948 }
Eric Laurent99401132014-05-07 19:48:15 -07002949 if (doMute) {
Eric Laurente552edb2014-03-10 17:42:56 -07002950 for (size_t j = 0; j < mOutputs.size(); j++) {
2951 AudioOutputDescriptor *desc = mOutputs.valueAt(j);
2952 // skip output if it does not share any device with current output
2953 if ((desc->supportedDevices() & outputDesc->supportedDevices())
2954 == AUDIO_DEVICE_NONE) {
2955 continue;
2956 }
2957 audio_io_handle_t curOutput = mOutputs.keyAt(j);
2958 ALOGVV("checkDeviceMuteStrategies() %s strategy %d (curDevice %04x) on output %d",
2959 mute ? "muting" : "unmuting", i, curDevice, curOutput);
2960 setStrategyMute((routing_strategy)i, mute, curOutput, mute ? 0 : delayMs);
2961 if (desc->isStrategyActive((routing_strategy)i)) {
Eric Laurent99401132014-05-07 19:48:15 -07002962 if (mute) {
2963 // FIXME: should not need to double latency if volume could be applied
2964 // immediately by the audioflinger mixer. We must account for the delay
2965 // between now and the next time the audioflinger thread for this output
2966 // will process a buffer (which corresponds to one buffer size,
2967 // usually 1/2 or 1/4 of the latency).
2968 if (muteWaitMs < desc->latency() * 2) {
2969 muteWaitMs = desc->latency() * 2;
Eric Laurente552edb2014-03-10 17:42:56 -07002970 }
2971 }
2972 }
2973 }
2974 }
2975 }
2976
Eric Laurent99401132014-05-07 19:48:15 -07002977 // temporary mute output if device selection changes to avoid volume bursts due to
2978 // different per device volumes
2979 if (outputDesc->isActive() && (device != prevDevice)) {
2980 if (muteWaitMs < outputDesc->latency() * 2) {
2981 muteWaitMs = outputDesc->latency() * 2;
2982 }
2983 for (size_t i = 0; i < NUM_STRATEGIES; i++) {
2984 if (outputDesc->isStrategyActive((routing_strategy)i)) {
2985 setStrategyMute((routing_strategy)i, true, outputDesc->mId);
2986 // do tempMute unmute after twice the mute wait time
2987 setStrategyMute((routing_strategy)i, false, outputDesc->mId,
2988 muteWaitMs *2, device);
2989 }
2990 }
2991 }
2992
Eric Laurente552edb2014-03-10 17:42:56 -07002993 // wait for the PCM output buffers to empty before proceeding with the rest of the command
2994 if (muteWaitMs > delayMs) {
2995 muteWaitMs -= delayMs;
2996 usleep(muteWaitMs * 1000);
2997 return muteWaitMs;
2998 }
2999 return 0;
3000}
3001
Eric Laurente0720872014-03-11 09:30:41 -07003002uint32_t AudioPolicyManager::setOutputDevice(audio_io_handle_t output,
Eric Laurente552edb2014-03-10 17:42:56 -07003003 audio_devices_t device,
3004 bool force,
3005 int delayMs)
3006{
3007 ALOGV("setOutputDevice() output %d device %04x delayMs %d", output, device, delayMs);
3008 AudioOutputDescriptor *outputDesc = mOutputs.valueFor(output);
3009 AudioParameter param;
3010 uint32_t muteWaitMs;
3011
3012 if (outputDesc->isDuplicated()) {
3013 muteWaitMs = setOutputDevice(outputDesc->mOutput1->mId, device, force, delayMs);
3014 muteWaitMs += setOutputDevice(outputDesc->mOutput2->mId, device, force, delayMs);
3015 return muteWaitMs;
3016 }
3017 // no need to proceed if new device is not AUDIO_DEVICE_NONE and not supported by current
3018 // output profile
3019 if ((device != AUDIO_DEVICE_NONE) &&
Eric Laurent3a4311c2014-03-17 12:00:47 -07003020 ((device & outputDesc->mProfile->mSupportedDevices.types()) == 0)) {
Eric Laurente552edb2014-03-10 17:42:56 -07003021 return 0;
3022 }
3023
3024 // filter devices according to output selected
Eric Laurent3a4311c2014-03-17 12:00:47 -07003025 device = (audio_devices_t)(device & outputDesc->mProfile->mSupportedDevices.types());
Eric Laurente552edb2014-03-10 17:42:56 -07003026
3027 audio_devices_t prevDevice = outputDesc->mDevice;
3028
3029 ALOGV("setOutputDevice() prevDevice %04x", prevDevice);
3030
3031 if (device != AUDIO_DEVICE_NONE) {
3032 outputDesc->mDevice = device;
3033 }
3034 muteWaitMs = checkDeviceMuteStrategies(outputDesc, prevDevice, delayMs);
3035
3036 // Do not change the routing if:
3037 // - the requested device is AUDIO_DEVICE_NONE
3038 // - the requested device is the same as current device and force is not specified.
3039 // Doing this check here allows the caller to call setOutputDevice() without conditions
3040 if ((device == AUDIO_DEVICE_NONE || device == prevDevice) && !force) {
3041 ALOGV("setOutputDevice() setting same device %04x or null device for output %d", device, output);
3042 return muteWaitMs;
3043 }
3044
3045 ALOGV("setOutputDevice() changing device");
3046 // do the routing
3047 param.addInt(String8(AudioParameter::keyRouting), (int)device);
3048 mpClientInterface->setParameters(output, param.toString(), delayMs);
3049
3050 // update stream volumes according to new device
3051 applyStreamVolumes(output, device, delayMs);
3052
3053 return muteWaitMs;
3054}
3055
Eric Laurente0720872014-03-11 09:30:41 -07003056AudioPolicyManager::IOProfile *AudioPolicyManager::getInputProfile(audio_devices_t device,
Eric Laurente552edb2014-03-10 17:42:56 -07003057 uint32_t samplingRate,
3058 audio_format_t format,
3059 audio_channel_mask_t channelMask)
3060{
3061 // Choose an input profile based on the requested capture parameters: select the first available
3062 // profile supporting all requested parameters.
3063
3064 for (size_t i = 0; i < mHwModules.size(); i++)
3065 {
3066 if (mHwModules[i]->mHandle == 0) {
3067 continue;
3068 }
3069 for (size_t j = 0; j < mHwModules[i]->mInputProfiles.size(); j++)
3070 {
3071 IOProfile *profile = mHwModules[i]->mInputProfiles[j];
Eric Laurentd4692962014-05-05 18:13:44 -07003072 // profile->log();
Eric Laurente552edb2014-03-10 17:42:56 -07003073 if (profile->isCompatibleProfile(device, samplingRate, format,
3074 channelMask, AUDIO_OUTPUT_FLAG_NONE)) {
3075 return profile;
3076 }
3077 }
3078 }
3079 return NULL;
3080}
3081
Eric Laurente0720872014-03-11 09:30:41 -07003082audio_devices_t AudioPolicyManager::getDeviceForInputSource(audio_source_t inputSource)
Eric Laurente552edb2014-03-10 17:42:56 -07003083{
3084 uint32_t device = AUDIO_DEVICE_NONE;
Eric Laurent3a4311c2014-03-17 12:00:47 -07003085 audio_devices_t availableDeviceTypes = mAvailableInputDevices.types() &
3086 ~AUDIO_DEVICE_BIT_IN;
Eric Laurente552edb2014-03-10 17:42:56 -07003087 switch (inputSource) {
3088 case AUDIO_SOURCE_VOICE_UPLINK:
Eric Laurent3a4311c2014-03-17 12:00:47 -07003089 if (availableDeviceTypes & AUDIO_DEVICE_IN_VOICE_CALL) {
Eric Laurente552edb2014-03-10 17:42:56 -07003090 device = AUDIO_DEVICE_IN_VOICE_CALL;
3091 break;
3092 }
3093 // FALL THROUGH
3094
3095 case AUDIO_SOURCE_DEFAULT:
3096 case AUDIO_SOURCE_MIC:
Mike Lockwood41b0e242014-05-13 15:23:35 -07003097 if (availableDeviceTypes & AUDIO_DEVICE_IN_BLUETOOTH_A2DP) {
3098 device = AUDIO_DEVICE_IN_BLUETOOTH_A2DP;
3099 break;
3100 }
3101 // FALL THROUGH
3102
Eric Laurente552edb2014-03-10 17:42:56 -07003103 case AUDIO_SOURCE_VOICE_RECOGNITION:
3104 case AUDIO_SOURCE_HOTWORD:
3105 case AUDIO_SOURCE_VOICE_COMMUNICATION:
Eric Laurent3b73df72014-03-11 09:06:29 -07003106 if (mForceUse[AUDIO_POLICY_FORCE_FOR_RECORD] == AUDIO_POLICY_FORCE_BT_SCO &&
Eric Laurent3a4311c2014-03-17 12:00:47 -07003107 availableDeviceTypes & AUDIO_DEVICE_IN_BLUETOOTH_SCO_HEADSET) {
Eric Laurente552edb2014-03-10 17:42:56 -07003108 device = AUDIO_DEVICE_IN_BLUETOOTH_SCO_HEADSET;
Eric Laurent3a4311c2014-03-17 12:00:47 -07003109 } else if (availableDeviceTypes & AUDIO_DEVICE_IN_WIRED_HEADSET) {
Eric Laurente552edb2014-03-10 17:42:56 -07003110 device = AUDIO_DEVICE_IN_WIRED_HEADSET;
Eric Laurentd4692962014-05-05 18:13:44 -07003111 } else if (availableDeviceTypes & AUDIO_DEVICE_IN_USB_DEVICE) {
3112 device = AUDIO_DEVICE_IN_USB_DEVICE;
Eric Laurent3a4311c2014-03-17 12:00:47 -07003113 } else if (availableDeviceTypes & AUDIO_DEVICE_IN_BUILTIN_MIC) {
Eric Laurente552edb2014-03-10 17:42:56 -07003114 device = AUDIO_DEVICE_IN_BUILTIN_MIC;
3115 }
3116 break;
3117 case AUDIO_SOURCE_CAMCORDER:
Eric Laurent3a4311c2014-03-17 12:00:47 -07003118 if (availableDeviceTypes & AUDIO_DEVICE_IN_BACK_MIC) {
Eric Laurente552edb2014-03-10 17:42:56 -07003119 device = AUDIO_DEVICE_IN_BACK_MIC;
Eric Laurent3a4311c2014-03-17 12:00:47 -07003120 } else if (availableDeviceTypes & AUDIO_DEVICE_IN_BUILTIN_MIC) {
Eric Laurente552edb2014-03-10 17:42:56 -07003121 device = AUDIO_DEVICE_IN_BUILTIN_MIC;
3122 }
3123 break;
3124 case AUDIO_SOURCE_VOICE_DOWNLINK:
3125 case AUDIO_SOURCE_VOICE_CALL:
Eric Laurent3a4311c2014-03-17 12:00:47 -07003126 if (availableDeviceTypes & AUDIO_DEVICE_IN_VOICE_CALL) {
Eric Laurente552edb2014-03-10 17:42:56 -07003127 device = AUDIO_DEVICE_IN_VOICE_CALL;
3128 }
3129 break;
3130 case AUDIO_SOURCE_REMOTE_SUBMIX:
Eric Laurent3a4311c2014-03-17 12:00:47 -07003131 if (availableDeviceTypes & AUDIO_DEVICE_IN_REMOTE_SUBMIX) {
Eric Laurente552edb2014-03-10 17:42:56 -07003132 device = AUDIO_DEVICE_IN_REMOTE_SUBMIX;
3133 }
3134 break;
3135 default:
3136 ALOGW("getDeviceForInputSource() invalid input source %d", inputSource);
3137 break;
3138 }
3139 ALOGV("getDeviceForInputSource()input source %d, device %08x", inputSource, device);
3140 return device;
3141}
3142
Eric Laurente0720872014-03-11 09:30:41 -07003143bool AudioPolicyManager::isVirtualInputDevice(audio_devices_t device)
Eric Laurente552edb2014-03-10 17:42:56 -07003144{
3145 if ((device & AUDIO_DEVICE_BIT_IN) != 0) {
3146 device &= ~AUDIO_DEVICE_BIT_IN;
3147 if ((popcount(device) == 1) && ((device & ~APM_AUDIO_IN_DEVICE_VIRTUAL_ALL) == 0))
3148 return true;
3149 }
3150 return false;
3151}
3152
Eric Laurente0720872014-03-11 09:30:41 -07003153audio_io_handle_t AudioPolicyManager::getActiveInput(bool ignoreVirtualInputs)
Eric Laurente552edb2014-03-10 17:42:56 -07003154{
3155 for (size_t i = 0; i < mInputs.size(); i++) {
3156 const AudioInputDescriptor * input_descriptor = mInputs.valueAt(i);
3157 if ((input_descriptor->mRefCount > 0)
3158 && (!ignoreVirtualInputs || !isVirtualInputDevice(input_descriptor->mDevice))) {
3159 return mInputs.keyAt(i);
3160 }
3161 }
3162 return 0;
3163}
3164
3165
Eric Laurente0720872014-03-11 09:30:41 -07003166audio_devices_t AudioPolicyManager::getDeviceForVolume(audio_devices_t device)
Eric Laurente552edb2014-03-10 17:42:56 -07003167{
3168 if (device == AUDIO_DEVICE_NONE) {
3169 // this happens when forcing a route update and no track is active on an output.
3170 // In this case the returned category is not important.
3171 device = AUDIO_DEVICE_OUT_SPEAKER;
Eric Laurent3b73df72014-03-11 09:06:29 -07003172 } else if (popcount(device) > 1) {
Eric Laurente552edb2014-03-10 17:42:56 -07003173 // Multiple device selection is either:
3174 // - speaker + one other device: give priority to speaker in this case.
3175 // - one A2DP device + another device: happens with duplicated output. In this case
3176 // retain the device on the A2DP output as the other must not correspond to an active
3177 // selection if not the speaker.
3178 if (device & AUDIO_DEVICE_OUT_SPEAKER) {
3179 device = AUDIO_DEVICE_OUT_SPEAKER;
3180 } else {
3181 device = (audio_devices_t)(device & AUDIO_DEVICE_OUT_ALL_A2DP);
3182 }
3183 }
3184
Eric Laurent3b73df72014-03-11 09:06:29 -07003185 ALOGW_IF(popcount(device) != 1,
Eric Laurente552edb2014-03-10 17:42:56 -07003186 "getDeviceForVolume() invalid device combination: %08x",
3187 device);
3188
3189 return device;
3190}
3191
Eric Laurente0720872014-03-11 09:30:41 -07003192AudioPolicyManager::device_category AudioPolicyManager::getDeviceCategory(audio_devices_t device)
Eric Laurente552edb2014-03-10 17:42:56 -07003193{
3194 switch(getDeviceForVolume(device)) {
3195 case AUDIO_DEVICE_OUT_EARPIECE:
3196 return DEVICE_CATEGORY_EARPIECE;
3197 case AUDIO_DEVICE_OUT_WIRED_HEADSET:
3198 case AUDIO_DEVICE_OUT_WIRED_HEADPHONE:
3199 case AUDIO_DEVICE_OUT_BLUETOOTH_SCO:
3200 case AUDIO_DEVICE_OUT_BLUETOOTH_SCO_HEADSET:
3201 case AUDIO_DEVICE_OUT_BLUETOOTH_A2DP:
3202 case AUDIO_DEVICE_OUT_BLUETOOTH_A2DP_HEADPHONES:
3203 return DEVICE_CATEGORY_HEADSET;
3204 case AUDIO_DEVICE_OUT_SPEAKER:
3205 case AUDIO_DEVICE_OUT_BLUETOOTH_SCO_CARKIT:
3206 case AUDIO_DEVICE_OUT_BLUETOOTH_A2DP_SPEAKER:
3207 case AUDIO_DEVICE_OUT_AUX_DIGITAL:
3208 case AUDIO_DEVICE_OUT_USB_ACCESSORY:
3209 case AUDIO_DEVICE_OUT_USB_DEVICE:
3210 case AUDIO_DEVICE_OUT_REMOTE_SUBMIX:
3211 default:
3212 return DEVICE_CATEGORY_SPEAKER;
3213 }
3214}
3215
Eric Laurente0720872014-03-11 09:30:41 -07003216float AudioPolicyManager::volIndexToAmpl(audio_devices_t device, const StreamDescriptor& streamDesc,
Eric Laurente552edb2014-03-10 17:42:56 -07003217 int indexInUi)
3218{
3219 device_category deviceCategory = getDeviceCategory(device);
3220 const VolumeCurvePoint *curve = streamDesc.mVolumeCurve[deviceCategory];
3221
3222 // the volume index in the UI is relative to the min and max volume indices for this stream type
3223 int nbSteps = 1 + curve[VOLMAX].mIndex -
3224 curve[VOLMIN].mIndex;
3225 int volIdx = (nbSteps * (indexInUi - streamDesc.mIndexMin)) /
3226 (streamDesc.mIndexMax - streamDesc.mIndexMin);
3227
3228 // find what part of the curve this index volume belongs to, or if it's out of bounds
3229 int segment = 0;
3230 if (volIdx < curve[VOLMIN].mIndex) { // out of bounds
3231 return 0.0f;
3232 } else if (volIdx < curve[VOLKNEE1].mIndex) {
3233 segment = 0;
3234 } else if (volIdx < curve[VOLKNEE2].mIndex) {
3235 segment = 1;
3236 } else if (volIdx <= curve[VOLMAX].mIndex) {
3237 segment = 2;
3238 } else { // out of bounds
3239 return 1.0f;
3240 }
3241
3242 // linear interpolation in the attenuation table in dB
3243 float decibels = curve[segment].mDBAttenuation +
3244 ((float)(volIdx - curve[segment].mIndex)) *
3245 ( (curve[segment+1].mDBAttenuation -
3246 curve[segment].mDBAttenuation) /
3247 ((float)(curve[segment+1].mIndex -
3248 curve[segment].mIndex)) );
3249
3250 float amplification = exp( decibels * 0.115129f); // exp( dB * ln(10) / 20 )
3251
3252 ALOGVV("VOLUME vol index=[%d %d %d], dB=[%.1f %.1f %.1f] ampl=%.5f",
3253 curve[segment].mIndex, volIdx,
3254 curve[segment+1].mIndex,
3255 curve[segment].mDBAttenuation,
3256 decibels,
3257 curve[segment+1].mDBAttenuation,
3258 amplification);
3259
3260 return amplification;
3261}
3262
Eric Laurente0720872014-03-11 09:30:41 -07003263const AudioPolicyManager::VolumeCurvePoint
3264 AudioPolicyManager::sDefaultVolumeCurve[AudioPolicyManager::VOLCNT] = {
Eric Laurente552edb2014-03-10 17:42:56 -07003265 {1, -49.5f}, {33, -33.5f}, {66, -17.0f}, {100, 0.0f}
3266};
3267
Eric Laurente0720872014-03-11 09:30:41 -07003268const AudioPolicyManager::VolumeCurvePoint
3269 AudioPolicyManager::sDefaultMediaVolumeCurve[AudioPolicyManager::VOLCNT] = {
Eric Laurente552edb2014-03-10 17:42:56 -07003270 {1, -58.0f}, {20, -40.0f}, {60, -17.0f}, {100, 0.0f}
3271};
3272
Eric Laurente0720872014-03-11 09:30:41 -07003273const AudioPolicyManager::VolumeCurvePoint
3274 AudioPolicyManager::sSpeakerMediaVolumeCurve[AudioPolicyManager::VOLCNT] = {
Eric Laurente552edb2014-03-10 17:42:56 -07003275 {1, -56.0f}, {20, -34.0f}, {60, -11.0f}, {100, 0.0f}
3276};
3277
Eric Laurente0720872014-03-11 09:30:41 -07003278const AudioPolicyManager::VolumeCurvePoint
3279 AudioPolicyManager::sSpeakerSonificationVolumeCurve[AudioPolicyManager::VOLCNT] = {
Eric Laurente552edb2014-03-10 17:42:56 -07003280 {1, -29.7f}, {33, -20.1f}, {66, -10.2f}, {100, 0.0f}
3281};
3282
Eric Laurente0720872014-03-11 09:30:41 -07003283const AudioPolicyManager::VolumeCurvePoint
3284 AudioPolicyManager::sSpeakerSonificationVolumeCurveDrc[AudioPolicyManager::VOLCNT] = {
Eric Laurente552edb2014-03-10 17:42:56 -07003285 {1, -35.7f}, {33, -26.1f}, {66, -13.2f}, {100, 0.0f}
3286};
3287
3288// AUDIO_STREAM_SYSTEM, AUDIO_STREAM_ENFORCED_AUDIBLE and AUDIO_STREAM_DTMF volume tracks
3289// AUDIO_STREAM_RING on phones and AUDIO_STREAM_MUSIC on tablets.
3290// AUDIO_STREAM_DTMF tracks AUDIO_STREAM_VOICE_CALL while in call (See AudioService.java).
3291// The range is constrained between -24dB and -6dB over speaker and -30dB and -18dB over headset.
3292
Eric Laurente0720872014-03-11 09:30:41 -07003293const AudioPolicyManager::VolumeCurvePoint
3294 AudioPolicyManager::sDefaultSystemVolumeCurve[AudioPolicyManager::VOLCNT] = {
Eric Laurente552edb2014-03-10 17:42:56 -07003295 {1, -24.0f}, {33, -18.0f}, {66, -12.0f}, {100, -6.0f}
3296};
3297
Eric Laurente0720872014-03-11 09:30:41 -07003298const AudioPolicyManager::VolumeCurvePoint
3299 AudioPolicyManager::sDefaultSystemVolumeCurveDrc[AudioPolicyManager::VOLCNT] = {
Eric Laurente552edb2014-03-10 17:42:56 -07003300 {1, -34.0f}, {33, -24.0f}, {66, -15.0f}, {100, -6.0f}
3301};
3302
Eric Laurente0720872014-03-11 09:30:41 -07003303const AudioPolicyManager::VolumeCurvePoint
3304 AudioPolicyManager::sHeadsetSystemVolumeCurve[AudioPolicyManager::VOLCNT] = {
Eric Laurente552edb2014-03-10 17:42:56 -07003305 {1, -30.0f}, {33, -26.0f}, {66, -22.0f}, {100, -18.0f}
3306};
3307
Eric Laurente0720872014-03-11 09:30:41 -07003308const AudioPolicyManager::VolumeCurvePoint
3309 AudioPolicyManager::sDefaultVoiceVolumeCurve[AudioPolicyManager::VOLCNT] = {
Eric Laurente552edb2014-03-10 17:42:56 -07003310 {0, -42.0f}, {33, -28.0f}, {66, -14.0f}, {100, 0.0f}
3311};
3312
Eric Laurente0720872014-03-11 09:30:41 -07003313const AudioPolicyManager::VolumeCurvePoint
3314 AudioPolicyManager::sSpeakerVoiceVolumeCurve[AudioPolicyManager::VOLCNT] = {
Eric Laurente552edb2014-03-10 17:42:56 -07003315 {0, -24.0f}, {33, -16.0f}, {66, -8.0f}, {100, 0.0f}
3316};
3317
Eric Laurente0720872014-03-11 09:30:41 -07003318const AudioPolicyManager::VolumeCurvePoint
3319 *AudioPolicyManager::sVolumeProfiles[AUDIO_STREAM_CNT]
3320 [AudioPolicyManager::DEVICE_CATEGORY_CNT] = {
Eric Laurente552edb2014-03-10 17:42:56 -07003321 { // AUDIO_STREAM_VOICE_CALL
3322 sDefaultVoiceVolumeCurve, // DEVICE_CATEGORY_HEADSET
3323 sSpeakerVoiceVolumeCurve, // DEVICE_CATEGORY_SPEAKER
3324 sDefaultVoiceVolumeCurve // DEVICE_CATEGORY_EARPIECE
3325 },
3326 { // AUDIO_STREAM_SYSTEM
3327 sHeadsetSystemVolumeCurve, // DEVICE_CATEGORY_HEADSET
3328 sDefaultSystemVolumeCurve, // DEVICE_CATEGORY_SPEAKER
3329 sDefaultSystemVolumeCurve // DEVICE_CATEGORY_EARPIECE
3330 },
3331 { // AUDIO_STREAM_RING
3332 sDefaultVolumeCurve, // DEVICE_CATEGORY_HEADSET
3333 sSpeakerSonificationVolumeCurve, // DEVICE_CATEGORY_SPEAKER
3334 sDefaultVolumeCurve // DEVICE_CATEGORY_EARPIECE
3335 },
3336 { // AUDIO_STREAM_MUSIC
3337 sDefaultMediaVolumeCurve, // DEVICE_CATEGORY_HEADSET
3338 sSpeakerMediaVolumeCurve, // DEVICE_CATEGORY_SPEAKER
3339 sDefaultMediaVolumeCurve // DEVICE_CATEGORY_EARPIECE
3340 },
3341 { // AUDIO_STREAM_ALARM
3342 sDefaultVolumeCurve, // DEVICE_CATEGORY_HEADSET
3343 sSpeakerSonificationVolumeCurve, // DEVICE_CATEGORY_SPEAKER
3344 sDefaultVolumeCurve // DEVICE_CATEGORY_EARPIECE
3345 },
3346 { // AUDIO_STREAM_NOTIFICATION
3347 sDefaultVolumeCurve, // DEVICE_CATEGORY_HEADSET
3348 sSpeakerSonificationVolumeCurve, // DEVICE_CATEGORY_SPEAKER
3349 sDefaultVolumeCurve // DEVICE_CATEGORY_EARPIECE
3350 },
3351 { // AUDIO_STREAM_BLUETOOTH_SCO
3352 sDefaultVoiceVolumeCurve, // DEVICE_CATEGORY_HEADSET
3353 sSpeakerVoiceVolumeCurve, // DEVICE_CATEGORY_SPEAKER
3354 sDefaultVoiceVolumeCurve // DEVICE_CATEGORY_EARPIECE
3355 },
3356 { // AUDIO_STREAM_ENFORCED_AUDIBLE
3357 sHeadsetSystemVolumeCurve, // DEVICE_CATEGORY_HEADSET
3358 sDefaultSystemVolumeCurve, // DEVICE_CATEGORY_SPEAKER
3359 sDefaultSystemVolumeCurve // DEVICE_CATEGORY_EARPIECE
3360 },
3361 { // AUDIO_STREAM_DTMF
3362 sHeadsetSystemVolumeCurve, // DEVICE_CATEGORY_HEADSET
3363 sDefaultSystemVolumeCurve, // DEVICE_CATEGORY_SPEAKER
3364 sDefaultSystemVolumeCurve // DEVICE_CATEGORY_EARPIECE
3365 },
3366 { // AUDIO_STREAM_TTS
3367 sDefaultMediaVolumeCurve, // DEVICE_CATEGORY_HEADSET
3368 sSpeakerMediaVolumeCurve, // DEVICE_CATEGORY_SPEAKER
3369 sDefaultMediaVolumeCurve // DEVICE_CATEGORY_EARPIECE
3370 },
3371};
3372
Eric Laurente0720872014-03-11 09:30:41 -07003373void AudioPolicyManager::initializeVolumeCurves()
Eric Laurente552edb2014-03-10 17:42:56 -07003374{
3375 for (int i = 0; i < AUDIO_STREAM_CNT; i++) {
3376 for (int j = 0; j < DEVICE_CATEGORY_CNT; j++) {
3377 mStreams[i].mVolumeCurve[j] =
3378 sVolumeProfiles[i][j];
3379 }
3380 }
3381
3382 // Check availability of DRC on speaker path: if available, override some of the speaker curves
3383 if (mSpeakerDrcEnabled) {
3384 mStreams[AUDIO_STREAM_SYSTEM].mVolumeCurve[DEVICE_CATEGORY_SPEAKER] =
3385 sDefaultSystemVolumeCurveDrc;
3386 mStreams[AUDIO_STREAM_RING].mVolumeCurve[DEVICE_CATEGORY_SPEAKER] =
3387 sSpeakerSonificationVolumeCurveDrc;
3388 mStreams[AUDIO_STREAM_ALARM].mVolumeCurve[DEVICE_CATEGORY_SPEAKER] =
3389 sSpeakerSonificationVolumeCurveDrc;
3390 mStreams[AUDIO_STREAM_NOTIFICATION].mVolumeCurve[DEVICE_CATEGORY_SPEAKER] =
3391 sSpeakerSonificationVolumeCurveDrc;
3392 }
3393}
3394
Eric Laurente0720872014-03-11 09:30:41 -07003395float AudioPolicyManager::computeVolume(audio_stream_type_t stream,
Eric Laurente552edb2014-03-10 17:42:56 -07003396 int index,
3397 audio_io_handle_t output,
3398 audio_devices_t device)
3399{
3400 float volume = 1.0;
3401 AudioOutputDescriptor *outputDesc = mOutputs.valueFor(output);
3402 StreamDescriptor &streamDesc = mStreams[stream];
3403
3404 if (device == AUDIO_DEVICE_NONE) {
3405 device = outputDesc->device();
3406 }
3407
3408 // if volume is not 0 (not muted), force media volume to max on digital output
Eric Laurent3b73df72014-03-11 09:06:29 -07003409 if (stream == AUDIO_STREAM_MUSIC &&
Eric Laurente552edb2014-03-10 17:42:56 -07003410 index != mStreams[stream].mIndexMin &&
3411 (device == AUDIO_DEVICE_OUT_AUX_DIGITAL ||
3412 device == AUDIO_DEVICE_OUT_DGTL_DOCK_HEADSET ||
3413 device == AUDIO_DEVICE_OUT_USB_ACCESSORY ||
3414 device == AUDIO_DEVICE_OUT_USB_DEVICE)) {
3415 return 1.0;
3416 }
3417
3418 volume = volIndexToAmpl(device, streamDesc, index);
3419
3420 // if a headset is connected, apply the following rules to ring tones and notifications
3421 // to avoid sound level bursts in user's ears:
3422 // - always attenuate ring tones and notifications volume by 6dB
3423 // - if music is playing, always limit the volume to current music volume,
3424 // with a minimum threshold at -36dB so that notification is always perceived.
Eric Laurent3b73df72014-03-11 09:06:29 -07003425 const routing_strategy stream_strategy = getStrategy(stream);
Eric Laurente552edb2014-03-10 17:42:56 -07003426 if ((device & (AUDIO_DEVICE_OUT_BLUETOOTH_A2DP |
3427 AUDIO_DEVICE_OUT_BLUETOOTH_A2DP_HEADPHONES |
3428 AUDIO_DEVICE_OUT_WIRED_HEADSET |
3429 AUDIO_DEVICE_OUT_WIRED_HEADPHONE)) &&
3430 ((stream_strategy == STRATEGY_SONIFICATION)
3431 || (stream_strategy == STRATEGY_SONIFICATION_RESPECTFUL)
Eric Laurent3b73df72014-03-11 09:06:29 -07003432 || (stream == AUDIO_STREAM_SYSTEM)
Eric Laurente552edb2014-03-10 17:42:56 -07003433 || ((stream_strategy == STRATEGY_ENFORCED_AUDIBLE) &&
Eric Laurent3b73df72014-03-11 09:06:29 -07003434 (mForceUse[AUDIO_POLICY_FORCE_FOR_SYSTEM] == AUDIO_POLICY_FORCE_NONE))) &&
Eric Laurente552edb2014-03-10 17:42:56 -07003435 streamDesc.mCanBeMuted) {
3436 volume *= SONIFICATION_HEADSET_VOLUME_FACTOR;
3437 // when the phone is ringing we must consider that music could have been paused just before
3438 // by the music application and behave as if music was active if the last music track was
3439 // just stopped
Eric Laurent3b73df72014-03-11 09:06:29 -07003440 if (isStreamActive(AUDIO_STREAM_MUSIC, SONIFICATION_HEADSET_MUSIC_DELAY) ||
Eric Laurente552edb2014-03-10 17:42:56 -07003441 mLimitRingtoneVolume) {
3442 audio_devices_t musicDevice = getDeviceForStrategy(STRATEGY_MEDIA, true /*fromCache*/);
Eric Laurent3b73df72014-03-11 09:06:29 -07003443 float musicVol = computeVolume(AUDIO_STREAM_MUSIC,
3444 mStreams[AUDIO_STREAM_MUSIC].getVolumeIndex(musicDevice),
Eric Laurente552edb2014-03-10 17:42:56 -07003445 output,
3446 musicDevice);
3447 float minVol = (musicVol > SONIFICATION_HEADSET_VOLUME_MIN) ?
3448 musicVol : SONIFICATION_HEADSET_VOLUME_MIN;
3449 if (volume > minVol) {
3450 volume = minVol;
3451 ALOGV("computeVolume limiting volume to %f musicVol %f", minVol, musicVol);
3452 }
3453 }
3454 }
3455
3456 return volume;
3457}
3458
Eric Laurente0720872014-03-11 09:30:41 -07003459status_t AudioPolicyManager::checkAndSetVolume(audio_stream_type_t stream,
Eric Laurente552edb2014-03-10 17:42:56 -07003460 int index,
3461 audio_io_handle_t output,
3462 audio_devices_t device,
3463 int delayMs,
3464 bool force)
3465{
3466
3467 // do not change actual stream volume if the stream is muted
3468 if (mOutputs.valueFor(output)->mMuteCount[stream] != 0) {
3469 ALOGVV("checkAndSetVolume() stream %d muted count %d",
3470 stream, mOutputs.valueFor(output)->mMuteCount[stream]);
3471 return NO_ERROR;
3472 }
3473
3474 // do not change in call volume if bluetooth is connected and vice versa
Eric Laurent3b73df72014-03-11 09:06:29 -07003475 if ((stream == AUDIO_STREAM_VOICE_CALL &&
3476 mForceUse[AUDIO_POLICY_FORCE_FOR_COMMUNICATION] == AUDIO_POLICY_FORCE_BT_SCO) ||
3477 (stream == AUDIO_STREAM_BLUETOOTH_SCO &&
3478 mForceUse[AUDIO_POLICY_FORCE_FOR_COMMUNICATION] != AUDIO_POLICY_FORCE_BT_SCO)) {
Eric Laurente552edb2014-03-10 17:42:56 -07003479 ALOGV("checkAndSetVolume() cannot set stream %d volume with force use = %d for comm",
Eric Laurent3b73df72014-03-11 09:06:29 -07003480 stream, mForceUse[AUDIO_POLICY_FORCE_FOR_COMMUNICATION]);
Eric Laurente552edb2014-03-10 17:42:56 -07003481 return INVALID_OPERATION;
3482 }
3483
3484 float volume = computeVolume(stream, index, output, device);
3485 // We actually change the volume if:
3486 // - the float value returned by computeVolume() changed
3487 // - the force flag is set
3488 if (volume != mOutputs.valueFor(output)->mCurVolume[stream] ||
3489 force) {
3490 mOutputs.valueFor(output)->mCurVolume[stream] = volume;
3491 ALOGVV("checkAndSetVolume() for output %d stream %d, volume %f, delay %d", output, stream, volume, delayMs);
3492 // Force VOICE_CALL to track BLUETOOTH_SCO stream volume when bluetooth audio is
3493 // enabled
Eric Laurent3b73df72014-03-11 09:06:29 -07003494 if (stream == AUDIO_STREAM_BLUETOOTH_SCO) {
3495 mpClientInterface->setStreamVolume(AUDIO_STREAM_VOICE_CALL, volume, output, delayMs);
Eric Laurente552edb2014-03-10 17:42:56 -07003496 }
Eric Laurent3b73df72014-03-11 09:06:29 -07003497 mpClientInterface->setStreamVolume(stream, volume, output, delayMs);
Eric Laurente552edb2014-03-10 17:42:56 -07003498 }
3499
Eric Laurent3b73df72014-03-11 09:06:29 -07003500 if (stream == AUDIO_STREAM_VOICE_CALL ||
3501 stream == AUDIO_STREAM_BLUETOOTH_SCO) {
Eric Laurente552edb2014-03-10 17:42:56 -07003502 float voiceVolume;
3503 // Force voice volume to max for bluetooth SCO as volume is managed by the headset
Eric Laurent3b73df72014-03-11 09:06:29 -07003504 if (stream == AUDIO_STREAM_VOICE_CALL) {
Eric Laurente552edb2014-03-10 17:42:56 -07003505 voiceVolume = (float)index/(float)mStreams[stream].mIndexMax;
3506 } else {
3507 voiceVolume = 1.0;
3508 }
3509
3510 if (voiceVolume != mLastVoiceVolume && output == mPrimaryOutput) {
3511 mpClientInterface->setVoiceVolume(voiceVolume, delayMs);
3512 mLastVoiceVolume = voiceVolume;
3513 }
3514 }
3515
3516 return NO_ERROR;
3517}
3518
Eric Laurente0720872014-03-11 09:30:41 -07003519void AudioPolicyManager::applyStreamVolumes(audio_io_handle_t output,
Eric Laurente552edb2014-03-10 17:42:56 -07003520 audio_devices_t device,
3521 int delayMs,
3522 bool force)
3523{
3524 ALOGVV("applyStreamVolumes() for output %d and device %x", output, device);
3525
Eric Laurent3b73df72014-03-11 09:06:29 -07003526 for (int stream = 0; stream < AUDIO_STREAM_CNT; stream++) {
3527 checkAndSetVolume((audio_stream_type_t)stream,
Eric Laurente552edb2014-03-10 17:42:56 -07003528 mStreams[stream].getVolumeIndex(device),
3529 output,
3530 device,
3531 delayMs,
3532 force);
3533 }
3534}
3535
Eric Laurente0720872014-03-11 09:30:41 -07003536void AudioPolicyManager::setStrategyMute(routing_strategy strategy,
Eric Laurente552edb2014-03-10 17:42:56 -07003537 bool on,
3538 audio_io_handle_t output,
3539 int delayMs,
3540 audio_devices_t device)
3541{
3542 ALOGVV("setStrategyMute() strategy %d, mute %d, output %d", strategy, on, output);
Eric Laurent3b73df72014-03-11 09:06:29 -07003543 for (int stream = 0; stream < AUDIO_STREAM_CNT; stream++) {
3544 if (getStrategy((audio_stream_type_t)stream) == strategy) {
3545 setStreamMute((audio_stream_type_t)stream, on, output, delayMs, device);
Eric Laurente552edb2014-03-10 17:42:56 -07003546 }
3547 }
3548}
3549
Eric Laurente0720872014-03-11 09:30:41 -07003550void AudioPolicyManager::setStreamMute(audio_stream_type_t stream,
Eric Laurente552edb2014-03-10 17:42:56 -07003551 bool on,
3552 audio_io_handle_t output,
3553 int delayMs,
3554 audio_devices_t device)
3555{
3556 StreamDescriptor &streamDesc = mStreams[stream];
3557 AudioOutputDescriptor *outputDesc = mOutputs.valueFor(output);
3558 if (device == AUDIO_DEVICE_NONE) {
3559 device = outputDesc->device();
3560 }
3561
3562 ALOGVV("setStreamMute() stream %d, mute %d, output %d, mMuteCount %d device %04x",
3563 stream, on, output, outputDesc->mMuteCount[stream], device);
3564
3565 if (on) {
3566 if (outputDesc->mMuteCount[stream] == 0) {
3567 if (streamDesc.mCanBeMuted &&
Eric Laurent3b73df72014-03-11 09:06:29 -07003568 ((stream != AUDIO_STREAM_ENFORCED_AUDIBLE) ||
3569 (mForceUse[AUDIO_POLICY_FORCE_FOR_SYSTEM] == AUDIO_POLICY_FORCE_NONE))) {
Eric Laurente552edb2014-03-10 17:42:56 -07003570 checkAndSetVolume(stream, 0, output, device, delayMs);
3571 }
3572 }
3573 // increment mMuteCount after calling checkAndSetVolume() so that volume change is not ignored
3574 outputDesc->mMuteCount[stream]++;
3575 } else {
3576 if (outputDesc->mMuteCount[stream] == 0) {
3577 ALOGV("setStreamMute() unmuting non muted stream!");
3578 return;
3579 }
3580 if (--outputDesc->mMuteCount[stream] == 0) {
3581 checkAndSetVolume(stream,
3582 streamDesc.getVolumeIndex(device),
3583 output,
3584 device,
3585 delayMs);
3586 }
3587 }
3588}
3589
Eric Laurente0720872014-03-11 09:30:41 -07003590void AudioPolicyManager::handleIncallSonification(audio_stream_type_t stream,
Eric Laurent3b73df72014-03-11 09:06:29 -07003591 bool starting, bool stateChange)
Eric Laurente552edb2014-03-10 17:42:56 -07003592{
3593 // if the stream pertains to sonification strategy and we are in call we must
3594 // mute the stream if it is low visibility. If it is high visibility, we must play a tone
3595 // in the device used for phone strategy and play the tone if the selected device does not
3596 // interfere with the device used for phone strategy
3597 // if stateChange is true, we are called from setPhoneState() and we must mute or unmute as
3598 // many times as there are active tracks on the output
Eric Laurent3b73df72014-03-11 09:06:29 -07003599 const routing_strategy stream_strategy = getStrategy(stream);
Eric Laurente552edb2014-03-10 17:42:56 -07003600 if ((stream_strategy == STRATEGY_SONIFICATION) ||
3601 ((stream_strategy == STRATEGY_SONIFICATION_RESPECTFUL))) {
3602 AudioOutputDescriptor *outputDesc = mOutputs.valueFor(mPrimaryOutput);
3603 ALOGV("handleIncallSonification() stream %d starting %d device %x stateChange %d",
3604 stream, starting, outputDesc->mDevice, stateChange);
3605 if (outputDesc->mRefCount[stream]) {
3606 int muteCount = 1;
3607 if (stateChange) {
3608 muteCount = outputDesc->mRefCount[stream];
3609 }
Eric Laurent3b73df72014-03-11 09:06:29 -07003610 if (audio_is_low_visibility(stream)) {
Eric Laurente552edb2014-03-10 17:42:56 -07003611 ALOGV("handleIncallSonification() low visibility, muteCount %d", muteCount);
3612 for (int i = 0; i < muteCount; i++) {
3613 setStreamMute(stream, starting, mPrimaryOutput);
3614 }
3615 } else {
3616 ALOGV("handleIncallSonification() high visibility");
3617 if (outputDesc->device() &
3618 getDeviceForStrategy(STRATEGY_PHONE, true /*fromCache*/)) {
3619 ALOGV("handleIncallSonification() high visibility muted, muteCount %d", muteCount);
3620 for (int i = 0; i < muteCount; i++) {
3621 setStreamMute(stream, starting, mPrimaryOutput);
3622 }
3623 }
3624 if (starting) {
Eric Laurent3b73df72014-03-11 09:06:29 -07003625 mpClientInterface->startTone(AUDIO_POLICY_TONE_IN_CALL_NOTIFICATION,
3626 AUDIO_STREAM_VOICE_CALL);
Eric Laurente552edb2014-03-10 17:42:56 -07003627 } else {
3628 mpClientInterface->stopTone();
3629 }
3630 }
3631 }
3632 }
3633}
3634
Eric Laurente0720872014-03-11 09:30:41 -07003635bool AudioPolicyManager::isInCall()
Eric Laurente552edb2014-03-10 17:42:56 -07003636{
3637 return isStateInCall(mPhoneState);
3638}
3639
Eric Laurente0720872014-03-11 09:30:41 -07003640bool AudioPolicyManager::isStateInCall(int state) {
Eric Laurent3b73df72014-03-11 09:06:29 -07003641 return ((state == AUDIO_MODE_IN_CALL) ||
3642 (state == AUDIO_MODE_IN_COMMUNICATION));
Eric Laurente552edb2014-03-10 17:42:56 -07003643}
3644
Eric Laurente0720872014-03-11 09:30:41 -07003645uint32_t AudioPolicyManager::getMaxEffectsCpuLoad()
Eric Laurente552edb2014-03-10 17:42:56 -07003646{
3647 return MAX_EFFECTS_CPU_LOAD;
3648}
3649
Eric Laurente0720872014-03-11 09:30:41 -07003650uint32_t AudioPolicyManager::getMaxEffectsMemory()
Eric Laurente552edb2014-03-10 17:42:56 -07003651{
3652 return MAX_EFFECTS_MEMORY;
3653}
3654
3655// --- AudioOutputDescriptor class implementation
3656
Eric Laurente0720872014-03-11 09:30:41 -07003657AudioPolicyManager::AudioOutputDescriptor::AudioOutputDescriptor(
Eric Laurente552edb2014-03-10 17:42:56 -07003658 const IOProfile *profile)
3659 : mId(0), mSamplingRate(0), mFormat(AUDIO_FORMAT_DEFAULT),
3660 mChannelMask(0), mLatency(0),
3661 mFlags((audio_output_flags_t)0), mDevice(AUDIO_DEVICE_NONE),
3662 mOutput1(0), mOutput2(0), mProfile(profile), mDirectOpenCount(0)
3663{
3664 // clear usage count for all stream types
Eric Laurent3b73df72014-03-11 09:06:29 -07003665 for (int i = 0; i < AUDIO_STREAM_CNT; i++) {
Eric Laurente552edb2014-03-10 17:42:56 -07003666 mRefCount[i] = 0;
3667 mCurVolume[i] = -1.0;
3668 mMuteCount[i] = 0;
3669 mStopTime[i] = 0;
3670 }
3671 for (int i = 0; i < NUM_STRATEGIES; i++) {
3672 mStrategyMutedByDevice[i] = false;
3673 }
3674 if (profile != NULL) {
3675 mSamplingRate = profile->mSamplingRates[0];
3676 mFormat = profile->mFormats[0];
3677 mChannelMask = profile->mChannelMasks[0];
3678 mFlags = profile->mFlags;
3679 }
3680}
3681
Eric Laurente0720872014-03-11 09:30:41 -07003682audio_devices_t AudioPolicyManager::AudioOutputDescriptor::device() const
Eric Laurente552edb2014-03-10 17:42:56 -07003683{
3684 if (isDuplicated()) {
3685 return (audio_devices_t)(mOutput1->mDevice | mOutput2->mDevice);
3686 } else {
3687 return mDevice;
3688 }
3689}
3690
Eric Laurente0720872014-03-11 09:30:41 -07003691uint32_t AudioPolicyManager::AudioOutputDescriptor::latency()
Eric Laurente552edb2014-03-10 17:42:56 -07003692{
3693 if (isDuplicated()) {
3694 return (mOutput1->mLatency > mOutput2->mLatency) ? mOutput1->mLatency : mOutput2->mLatency;
3695 } else {
3696 return mLatency;
3697 }
3698}
3699
Eric Laurente0720872014-03-11 09:30:41 -07003700bool AudioPolicyManager::AudioOutputDescriptor::sharesHwModuleWith(
Eric Laurente552edb2014-03-10 17:42:56 -07003701 const AudioOutputDescriptor *outputDesc)
3702{
3703 if (isDuplicated()) {
3704 return mOutput1->sharesHwModuleWith(outputDesc) || mOutput2->sharesHwModuleWith(outputDesc);
3705 } else if (outputDesc->isDuplicated()){
3706 return sharesHwModuleWith(outputDesc->mOutput1) || sharesHwModuleWith(outputDesc->mOutput2);
3707 } else {
3708 return (mProfile->mModule == outputDesc->mProfile->mModule);
3709 }
3710}
3711
Eric Laurente0720872014-03-11 09:30:41 -07003712void AudioPolicyManager::AudioOutputDescriptor::changeRefCount(audio_stream_type_t stream,
Eric Laurent3b73df72014-03-11 09:06:29 -07003713 int delta)
Eric Laurente552edb2014-03-10 17:42:56 -07003714{
3715 // forward usage count change to attached outputs
3716 if (isDuplicated()) {
3717 mOutput1->changeRefCount(stream, delta);
3718 mOutput2->changeRefCount(stream, delta);
3719 }
3720 if ((delta + (int)mRefCount[stream]) < 0) {
Eric Laurent3b73df72014-03-11 09:06:29 -07003721 ALOGW("changeRefCount() invalid delta %d for stream %d, refCount %d",
3722 delta, stream, mRefCount[stream]);
Eric Laurente552edb2014-03-10 17:42:56 -07003723 mRefCount[stream] = 0;
3724 return;
3725 }
3726 mRefCount[stream] += delta;
3727 ALOGV("changeRefCount() stream %d, count %d", stream, mRefCount[stream]);
3728}
3729
Eric Laurente0720872014-03-11 09:30:41 -07003730audio_devices_t AudioPolicyManager::AudioOutputDescriptor::supportedDevices()
Eric Laurente552edb2014-03-10 17:42:56 -07003731{
3732 if (isDuplicated()) {
3733 return (audio_devices_t)(mOutput1->supportedDevices() | mOutput2->supportedDevices());
3734 } else {
Eric Laurent3a4311c2014-03-17 12:00:47 -07003735 return mProfile->mSupportedDevices.types() ;
Eric Laurente552edb2014-03-10 17:42:56 -07003736 }
3737}
3738
Eric Laurente0720872014-03-11 09:30:41 -07003739bool AudioPolicyManager::AudioOutputDescriptor::isActive(uint32_t inPastMs) const
Eric Laurente552edb2014-03-10 17:42:56 -07003740{
3741 return isStrategyActive(NUM_STRATEGIES, inPastMs);
3742}
3743
Eric Laurente0720872014-03-11 09:30:41 -07003744bool AudioPolicyManager::AudioOutputDescriptor::isStrategyActive(routing_strategy strategy,
Eric Laurente552edb2014-03-10 17:42:56 -07003745 uint32_t inPastMs,
3746 nsecs_t sysTime) const
3747{
3748 if ((sysTime == 0) && (inPastMs != 0)) {
3749 sysTime = systemTime();
3750 }
Eric Laurent3b73df72014-03-11 09:06:29 -07003751 for (int i = 0; i < (int)AUDIO_STREAM_CNT; i++) {
3752 if (((getStrategy((audio_stream_type_t)i) == strategy) ||
Eric Laurente552edb2014-03-10 17:42:56 -07003753 (NUM_STRATEGIES == strategy)) &&
Eric Laurent3b73df72014-03-11 09:06:29 -07003754 isStreamActive((audio_stream_type_t)i, inPastMs, sysTime)) {
Eric Laurente552edb2014-03-10 17:42:56 -07003755 return true;
3756 }
3757 }
3758 return false;
3759}
3760
Eric Laurente0720872014-03-11 09:30:41 -07003761bool AudioPolicyManager::AudioOutputDescriptor::isStreamActive(audio_stream_type_t stream,
Eric Laurente552edb2014-03-10 17:42:56 -07003762 uint32_t inPastMs,
3763 nsecs_t sysTime) const
3764{
3765 if (mRefCount[stream] != 0) {
3766 return true;
3767 }
3768 if (inPastMs == 0) {
3769 return false;
3770 }
3771 if (sysTime == 0) {
3772 sysTime = systemTime();
3773 }
3774 if (ns2ms(sysTime - mStopTime[stream]) < inPastMs) {
3775 return true;
3776 }
3777 return false;
3778}
3779
3780
Eric Laurente0720872014-03-11 09:30:41 -07003781status_t AudioPolicyManager::AudioOutputDescriptor::dump(int fd)
Eric Laurente552edb2014-03-10 17:42:56 -07003782{
3783 const size_t SIZE = 256;
3784 char buffer[SIZE];
3785 String8 result;
3786
3787 snprintf(buffer, SIZE, " Sampling rate: %d\n", mSamplingRate);
3788 result.append(buffer);
3789 snprintf(buffer, SIZE, " Format: %08x\n", mFormat);
3790 result.append(buffer);
3791 snprintf(buffer, SIZE, " Channels: %08x\n", mChannelMask);
3792 result.append(buffer);
3793 snprintf(buffer, SIZE, " Latency: %d\n", mLatency);
3794 result.append(buffer);
3795 snprintf(buffer, SIZE, " Flags %08x\n", mFlags);
3796 result.append(buffer);
3797 snprintf(buffer, SIZE, " Devices %08x\n", device());
3798 result.append(buffer);
3799 snprintf(buffer, SIZE, " Stream volume refCount muteCount\n");
3800 result.append(buffer);
Eric Laurent3b73df72014-03-11 09:06:29 -07003801 for (int i = 0; i < (int)AUDIO_STREAM_CNT; i++) {
3802 snprintf(buffer, SIZE, " %02d %.03f %02d %02d\n",
3803 i, mCurVolume[i], mRefCount[i], mMuteCount[i]);
Eric Laurente552edb2014-03-10 17:42:56 -07003804 result.append(buffer);
3805 }
3806 write(fd, result.string(), result.size());
3807
3808 return NO_ERROR;
3809}
3810
3811// --- AudioInputDescriptor class implementation
3812
Eric Laurente0720872014-03-11 09:30:41 -07003813AudioPolicyManager::AudioInputDescriptor::AudioInputDescriptor(const IOProfile *profile)
Eric Laurentd4692962014-05-05 18:13:44 -07003814 : mId(0), mSamplingRate(0), mFormat(AUDIO_FORMAT_DEFAULT), mChannelMask(0),
Eric Laurente552edb2014-03-10 17:42:56 -07003815 mDevice(AUDIO_DEVICE_NONE), mRefCount(0),
Eric Laurent3b73df72014-03-11 09:06:29 -07003816 mInputSource(AUDIO_SOURCE_DEFAULT), mProfile(profile)
Eric Laurente552edb2014-03-10 17:42:56 -07003817{
Eric Laurent3a4311c2014-03-17 12:00:47 -07003818 if (profile != NULL) {
3819 mSamplingRate = profile->mSamplingRates[0];
3820 mFormat = profile->mFormats[0];
3821 mChannelMask = profile->mChannelMasks[0];
3822 }
Eric Laurente552edb2014-03-10 17:42:56 -07003823}
3824
Eric Laurente0720872014-03-11 09:30:41 -07003825status_t AudioPolicyManager::AudioInputDescriptor::dump(int fd)
Eric Laurente552edb2014-03-10 17:42:56 -07003826{
3827 const size_t SIZE = 256;
3828 char buffer[SIZE];
3829 String8 result;
3830
3831 snprintf(buffer, SIZE, " Sampling rate: %d\n", mSamplingRate);
3832 result.append(buffer);
3833 snprintf(buffer, SIZE, " Format: %d\n", mFormat);
3834 result.append(buffer);
3835 snprintf(buffer, SIZE, " Channels: %08x\n", mChannelMask);
3836 result.append(buffer);
3837 snprintf(buffer, SIZE, " Devices %08x\n", mDevice);
3838 result.append(buffer);
3839 snprintf(buffer, SIZE, " Ref Count %d\n", mRefCount);
3840 result.append(buffer);
3841 write(fd, result.string(), result.size());
3842
3843 return NO_ERROR;
3844}
3845
3846// --- StreamDescriptor class implementation
3847
Eric Laurente0720872014-03-11 09:30:41 -07003848AudioPolicyManager::StreamDescriptor::StreamDescriptor()
Eric Laurente552edb2014-03-10 17:42:56 -07003849 : mIndexMin(0), mIndexMax(1), mCanBeMuted(true)
3850{
3851 mIndexCur.add(AUDIO_DEVICE_OUT_DEFAULT, 0);
3852}
3853
Eric Laurente0720872014-03-11 09:30:41 -07003854int AudioPolicyManager::StreamDescriptor::getVolumeIndex(audio_devices_t device)
Eric Laurente552edb2014-03-10 17:42:56 -07003855{
Eric Laurente0720872014-03-11 09:30:41 -07003856 device = AudioPolicyManager::getDeviceForVolume(device);
Eric Laurente552edb2014-03-10 17:42:56 -07003857 // there is always a valid entry for AUDIO_DEVICE_OUT_DEFAULT
3858 if (mIndexCur.indexOfKey(device) < 0) {
3859 device = AUDIO_DEVICE_OUT_DEFAULT;
3860 }
3861 return mIndexCur.valueFor(device);
3862}
3863
Eric Laurente0720872014-03-11 09:30:41 -07003864void AudioPolicyManager::StreamDescriptor::dump(int fd)
Eric Laurente552edb2014-03-10 17:42:56 -07003865{
3866 const size_t SIZE = 256;
3867 char buffer[SIZE];
3868 String8 result;
3869
3870 snprintf(buffer, SIZE, "%s %02d %02d ",
3871 mCanBeMuted ? "true " : "false", mIndexMin, mIndexMax);
3872 result.append(buffer);
3873 for (size_t i = 0; i < mIndexCur.size(); i++) {
3874 snprintf(buffer, SIZE, "%04x : %02d, ",
3875 mIndexCur.keyAt(i),
3876 mIndexCur.valueAt(i));
3877 result.append(buffer);
3878 }
3879 result.append("\n");
3880
3881 write(fd, result.string(), result.size());
3882}
3883
3884// --- EffectDescriptor class implementation
3885
Eric Laurente0720872014-03-11 09:30:41 -07003886status_t AudioPolicyManager::EffectDescriptor::dump(int fd)
Eric Laurente552edb2014-03-10 17:42:56 -07003887{
3888 const size_t SIZE = 256;
3889 char buffer[SIZE];
3890 String8 result;
3891
3892 snprintf(buffer, SIZE, " I/O: %d\n", mIo);
3893 result.append(buffer);
3894 snprintf(buffer, SIZE, " Strategy: %d\n", mStrategy);
3895 result.append(buffer);
3896 snprintf(buffer, SIZE, " Session: %d\n", mSession);
3897 result.append(buffer);
3898 snprintf(buffer, SIZE, " Name: %s\n", mDesc.name);
3899 result.append(buffer);
3900 snprintf(buffer, SIZE, " %s\n", mEnabled ? "Enabled" : "Disabled");
3901 result.append(buffer);
3902 write(fd, result.string(), result.size());
3903
3904 return NO_ERROR;
3905}
3906
3907// --- IOProfile class implementation
3908
Eric Laurente0720872014-03-11 09:30:41 -07003909AudioPolicyManager::HwModule::HwModule(const char *name)
Eric Laurente552edb2014-03-10 17:42:56 -07003910 : mName(strndup(name, AUDIO_HARDWARE_MODULE_ID_MAX_LEN)), mHandle(0)
3911{
3912}
3913
Eric Laurente0720872014-03-11 09:30:41 -07003914AudioPolicyManager::HwModule::~HwModule()
Eric Laurente552edb2014-03-10 17:42:56 -07003915{
3916 for (size_t i = 0; i < mOutputProfiles.size(); i++) {
Eric Laurent3a4311c2014-03-17 12:00:47 -07003917 mOutputProfiles[i]->mSupportedDevices.clear();
3918 delete mOutputProfiles[i];
Eric Laurente552edb2014-03-10 17:42:56 -07003919 }
3920 for (size_t i = 0; i < mInputProfiles.size(); i++) {
Eric Laurent3a4311c2014-03-17 12:00:47 -07003921 mInputProfiles[i]->mSupportedDevices.clear();
3922 delete mInputProfiles[i];
Eric Laurente552edb2014-03-10 17:42:56 -07003923 }
3924 free((void *)mName);
3925}
3926
Eric Laurente0720872014-03-11 09:30:41 -07003927void AudioPolicyManager::HwModule::dump(int fd)
Eric Laurente552edb2014-03-10 17:42:56 -07003928{
3929 const size_t SIZE = 256;
3930 char buffer[SIZE];
3931 String8 result;
3932
3933 snprintf(buffer, SIZE, " - name: %s\n", mName);
3934 result.append(buffer);
3935 snprintf(buffer, SIZE, " - handle: %d\n", mHandle);
3936 result.append(buffer);
3937 write(fd, result.string(), result.size());
3938 if (mOutputProfiles.size()) {
3939 write(fd, " - outputs:\n", strlen(" - outputs:\n"));
3940 for (size_t i = 0; i < mOutputProfiles.size(); i++) {
Eric Laurentd4692962014-05-05 18:13:44 -07003941 snprintf(buffer, SIZE, " output %zu:\n", i);
Eric Laurente552edb2014-03-10 17:42:56 -07003942 write(fd, buffer, strlen(buffer));
3943 mOutputProfiles[i]->dump(fd);
3944 }
3945 }
3946 if (mInputProfiles.size()) {
3947 write(fd, " - inputs:\n", strlen(" - inputs:\n"));
3948 for (size_t i = 0; i < mInputProfiles.size(); i++) {
Eric Laurentd4692962014-05-05 18:13:44 -07003949 snprintf(buffer, SIZE, " input %zu:\n", i);
Eric Laurente552edb2014-03-10 17:42:56 -07003950 write(fd, buffer, strlen(buffer));
3951 mInputProfiles[i]->dump(fd);
3952 }
3953 }
3954}
3955
Eric Laurente0720872014-03-11 09:30:41 -07003956AudioPolicyManager::IOProfile::IOProfile(HwModule *module)
Eric Laurente552edb2014-03-10 17:42:56 -07003957 : mFlags((audio_output_flags_t)0), mModule(module)
3958{
3959}
3960
Eric Laurente0720872014-03-11 09:30:41 -07003961AudioPolicyManager::IOProfile::~IOProfile()
Eric Laurente552edb2014-03-10 17:42:56 -07003962{
3963}
3964
3965// checks if the IO profile is compatible with specified parameters.
3966// Sampling rate, format and channel mask must be specified in order to
3967// get a valid a match
Eric Laurente0720872014-03-11 09:30:41 -07003968bool AudioPolicyManager::IOProfile::isCompatibleProfile(audio_devices_t device,
Eric Laurente552edb2014-03-10 17:42:56 -07003969 uint32_t samplingRate,
3970 audio_format_t format,
3971 audio_channel_mask_t channelMask,
3972 audio_output_flags_t flags) const
3973{
3974 if (samplingRate == 0 || !audio_is_valid_format(format) || channelMask == 0) {
3975 return false;
3976 }
3977
Eric Laurent3a4311c2014-03-17 12:00:47 -07003978 if ((mSupportedDevices.types() & device) != device) {
Eric Laurente552edb2014-03-10 17:42:56 -07003979 return false;
3980 }
3981 if ((mFlags & flags) != flags) {
3982 return false;
3983 }
3984 size_t i;
3985 for (i = 0; i < mSamplingRates.size(); i++)
3986 {
3987 if (mSamplingRates[i] == samplingRate) {
3988 break;
3989 }
3990 }
3991 if (i == mSamplingRates.size()) {
3992 return false;
3993 }
3994 for (i = 0; i < mFormats.size(); i++)
3995 {
3996 if (mFormats[i] == format) {
3997 break;
3998 }
3999 }
4000 if (i == mFormats.size()) {
4001 return false;
4002 }
4003 for (i = 0; i < mChannelMasks.size(); i++)
4004 {
4005 if (mChannelMasks[i] == channelMask) {
4006 break;
4007 }
4008 }
4009 if (i == mChannelMasks.size()) {
4010 return false;
4011 }
4012 return true;
4013}
4014
Eric Laurente0720872014-03-11 09:30:41 -07004015void AudioPolicyManager::IOProfile::dump(int fd)
Eric Laurente552edb2014-03-10 17:42:56 -07004016{
4017 const size_t SIZE = 256;
4018 char buffer[SIZE];
4019 String8 result;
4020
4021 snprintf(buffer, SIZE, " - sampling rates: ");
4022 result.append(buffer);
4023 for (size_t i = 0; i < mSamplingRates.size(); i++) {
4024 snprintf(buffer, SIZE, "%d", mSamplingRates[i]);
4025 result.append(buffer);
4026 result.append(i == (mSamplingRates.size() - 1) ? "\n" : ", ");
4027 }
4028
4029 snprintf(buffer, SIZE, " - channel masks: ");
4030 result.append(buffer);
4031 for (size_t i = 0; i < mChannelMasks.size(); i++) {
4032 snprintf(buffer, SIZE, "0x%04x", mChannelMasks[i]);
4033 result.append(buffer);
4034 result.append(i == (mChannelMasks.size() - 1) ? "\n" : ", ");
4035 }
4036
4037 snprintf(buffer, SIZE, " - formats: ");
4038 result.append(buffer);
4039 for (size_t i = 0; i < mFormats.size(); i++) {
4040 snprintf(buffer, SIZE, "0x%08x", mFormats[i]);
4041 result.append(buffer);
4042 result.append(i == (mFormats.size() - 1) ? "\n" : ", ");
4043 }
4044
Eric Laurent3a4311c2014-03-17 12:00:47 -07004045 snprintf(buffer, SIZE, " - devices:\n");
Eric Laurente552edb2014-03-10 17:42:56 -07004046 result.append(buffer);
Eric Laurent3a4311c2014-03-17 12:00:47 -07004047 write(fd, result.string(), result.size());
4048 DeviceDescriptor::dumpHeader(fd, 6);
4049 for (size_t i = 0; i < mSupportedDevices.size(); i++) {
4050 mSupportedDevices[i]->dump(fd, 6);
4051 }
4052
Eric Laurente552edb2014-03-10 17:42:56 -07004053 snprintf(buffer, SIZE, " - flags: 0x%04x\n", mFlags);
4054 result.append(buffer);
4055
4056 write(fd, result.string(), result.size());
4057}
4058
Eric Laurentd4692962014-05-05 18:13:44 -07004059void AudioPolicyManager::IOProfile::log()
4060{
4061 const size_t SIZE = 256;
4062 char buffer[SIZE];
4063 String8 result;
4064
4065 ALOGV(" - sampling rates: ");
4066 for (size_t i = 0; i < mSamplingRates.size(); i++) {
4067 ALOGV(" %d", mSamplingRates[i]);
4068 }
4069
4070 ALOGV(" - channel masks: ");
4071 for (size_t i = 0; i < mChannelMasks.size(); i++) {
4072 ALOGV(" 0x%04x", mChannelMasks[i]);
4073 }
4074
4075 ALOGV(" - formats: ");
4076 for (size_t i = 0; i < mFormats.size(); i++) {
4077 ALOGV(" 0x%08x", mFormats[i]);
4078 }
4079
4080 ALOGV(" - devices: 0x%04x\n", mSupportedDevices.types());
4081 ALOGV(" - flags: 0x%04x\n", mFlags);
4082}
4083
4084
Eric Laurent3a4311c2014-03-17 12:00:47 -07004085// --- DeviceDescriptor implementation
Eric Laurente552edb2014-03-10 17:42:56 -07004086
Eric Laurent3a4311c2014-03-17 12:00:47 -07004087bool AudioPolicyManager::DeviceDescriptor::equals(const sp<DeviceDescriptor>& other) const
Eric Laurente552edb2014-03-10 17:42:56 -07004088{
Eric Laurent3a4311c2014-03-17 12:00:47 -07004089 // Devices are considered equal if they:
4090 // - are of the same type (a device type cannot be AUDIO_DEVICE_NONE)
4091 // - have the same address or one device does not specify the address
4092 // - have the same channel mask or one device does not specify the channel mask
4093 return (mType == other->mType) &&
4094 (mAddress == "" || other->mAddress == "" || mAddress == other->mAddress) &&
Eric Laurent2f8a36f2014-03-26 19:05:55 -07004095 (mChannelMask == 0 || other->mChannelMask == 0 ||
Eric Laurent3a4311c2014-03-17 12:00:47 -07004096 mChannelMask == other->mChannelMask);
4097}
4098
4099void AudioPolicyManager::DeviceVector::refreshTypes()
4100{
4101 mTypes = AUDIO_DEVICE_NONE;
4102 for(size_t i = 0; i < size(); i++) {
4103 mTypes |= itemAt(i)->mType;
4104 }
4105 ALOGV("DeviceVector::refreshTypes() mTypes %08x", mTypes);
4106}
4107
4108ssize_t AudioPolicyManager::DeviceVector::indexOf(const sp<DeviceDescriptor>& item) const
4109{
4110 for(size_t i = 0; i < size(); i++) {
4111 if (item->equals(itemAt(i))) {
4112 return i;
Eric Laurente552edb2014-03-10 17:42:56 -07004113 }
4114 }
Eric Laurent3a4311c2014-03-17 12:00:47 -07004115 return -1;
Eric Laurente552edb2014-03-10 17:42:56 -07004116}
4117
Eric Laurent3a4311c2014-03-17 12:00:47 -07004118ssize_t AudioPolicyManager::DeviceVector::add(const sp<DeviceDescriptor>& item)
Eric Laurente552edb2014-03-10 17:42:56 -07004119{
Eric Laurent3a4311c2014-03-17 12:00:47 -07004120 ssize_t ret = indexOf(item);
4121
4122 if (ret < 0) {
4123 ret = SortedVector::add(item);
4124 if (ret >= 0) {
4125 refreshTypes();
4126 }
4127 } else {
4128 ALOGW("DeviceVector::add device %08x already in", item->mType);
4129 ret = -1;
4130 }
4131 return ret;
Eric Laurente552edb2014-03-10 17:42:56 -07004132}
4133
Eric Laurent3a4311c2014-03-17 12:00:47 -07004134ssize_t AudioPolicyManager::DeviceVector::remove(const sp<DeviceDescriptor>& item)
4135{
4136 size_t i;
4137 ssize_t ret = indexOf(item);
4138
4139 if (ret < 0) {
4140 ALOGW("DeviceVector::remove device %08x not in", item->mType);
4141 } else {
4142 ret = SortedVector::removeAt(ret);
4143 if (ret >= 0) {
4144 refreshTypes();
4145 }
4146 }
4147 return ret;
4148}
4149
4150void AudioPolicyManager::DeviceVector::loadDevicesFromType(audio_devices_t types)
4151{
4152 DeviceVector deviceList;
4153
4154 uint32_t role_bit = AUDIO_DEVICE_BIT_IN & types;
4155 types &= ~role_bit;
4156
4157 while (types) {
4158 uint32_t i = 31 - __builtin_clz(types);
4159 uint32_t type = 1 << i;
4160 types &= ~type;
4161 add(new DeviceDescriptor(type | role_bit));
4162 }
4163}
4164
4165void AudioPolicyManager::DeviceDescriptor::dumpHeader(int fd, int spaces)
4166{
4167 const size_t SIZE = 256;
4168 char buffer[SIZE];
4169
4170 snprintf(buffer, SIZE, "%*s%-48s %-2s %-8s %-32s \n",
4171 spaces, "", "Type", "ID", "Cnl Mask", "Address");
4172 write(fd, buffer, strlen(buffer));
4173}
4174
4175status_t AudioPolicyManager::DeviceDescriptor::dump(int fd, int spaces) const
4176{
4177 const size_t SIZE = 256;
4178 char buffer[SIZE];
4179
4180 snprintf(buffer, SIZE, "%*s%-48s %2d %08x %-32s \n",
4181 spaces, "",
4182 enumToString(sDeviceNameToEnumTable,
4183 ARRAY_SIZE(sDeviceNameToEnumTable),
4184 mType),
4185 mId, mChannelMask, mAddress.string());
4186 write(fd, buffer, strlen(buffer));
4187
4188 return NO_ERROR;
4189}
4190
4191
4192// --- audio_policy.conf file parsing
4193
Eric Laurente0720872014-03-11 09:30:41 -07004194audio_output_flags_t AudioPolicyManager::parseFlagNames(char *name)
Eric Laurente552edb2014-03-10 17:42:56 -07004195{
4196 uint32_t flag = 0;
4197
4198 // it is OK to cast name to non const here as we are not going to use it after
4199 // strtok() modifies it
4200 char *flagName = strtok(name, "|");
4201 while (flagName != NULL) {
4202 if (strlen(flagName) != 0) {
4203 flag |= stringToEnum(sFlagNameToEnumTable,
4204 ARRAY_SIZE(sFlagNameToEnumTable),
4205 flagName);
4206 }
4207 flagName = strtok(NULL, "|");
4208 }
4209 //force direct flag if offload flag is set: offloading implies a direct output stream
4210 // and all common behaviors are driven by checking only the direct flag
4211 // this should normally be set appropriately in the policy configuration file
4212 if ((flag & AUDIO_OUTPUT_FLAG_COMPRESS_OFFLOAD) != 0) {
4213 flag |= AUDIO_OUTPUT_FLAG_DIRECT;
4214 }
4215
4216 return (audio_output_flags_t)flag;
4217}
4218
Eric Laurente0720872014-03-11 09:30:41 -07004219audio_devices_t AudioPolicyManager::parseDeviceNames(char *name)
Eric Laurente552edb2014-03-10 17:42:56 -07004220{
4221 uint32_t device = 0;
4222
4223 char *devName = strtok(name, "|");
4224 while (devName != NULL) {
4225 if (strlen(devName) != 0) {
4226 device |= stringToEnum(sDeviceNameToEnumTable,
4227 ARRAY_SIZE(sDeviceNameToEnumTable),
4228 devName);
Eric Laurent3a4311c2014-03-17 12:00:47 -07004229 }
Eric Laurente552edb2014-03-10 17:42:56 -07004230 devName = strtok(NULL, "|");
Eric Laurent3a4311c2014-03-17 12:00:47 -07004231 }
Eric Laurente552edb2014-03-10 17:42:56 -07004232 return device;
4233}
4234
Eric Laurente0720872014-03-11 09:30:41 -07004235void AudioPolicyManager::loadSamplingRates(char *name, IOProfile *profile)
Eric Laurente552edb2014-03-10 17:42:56 -07004236{
4237 char *str = strtok(name, "|");
4238
4239 // by convention, "0' in the first entry in mSamplingRates indicates the supported sampling
4240 // rates should be read from the output stream after it is opened for the first time
4241 if (str != NULL && strcmp(str, DYNAMIC_VALUE_TAG) == 0) {
4242 profile->mSamplingRates.add(0);
4243 return;
4244 }
4245
4246 while (str != NULL) {
4247 uint32_t rate = atoi(str);
4248 if (rate != 0) {
4249 ALOGV("loadSamplingRates() adding rate %d", rate);
4250 profile->mSamplingRates.add(rate);
4251 }
4252 str = strtok(NULL, "|");
4253 }
4254 return;
4255}
4256
Eric Laurente0720872014-03-11 09:30:41 -07004257void AudioPolicyManager::loadFormats(char *name, IOProfile *profile)
Eric Laurente552edb2014-03-10 17:42:56 -07004258{
4259 char *str = strtok(name, "|");
4260
4261 // by convention, "0' in the first entry in mFormats indicates the supported formats
4262 // should be read from the output stream after it is opened for the first time
4263 if (str != NULL && strcmp(str, DYNAMIC_VALUE_TAG) == 0) {
4264 profile->mFormats.add(AUDIO_FORMAT_DEFAULT);
4265 return;
4266 }
4267
4268 while (str != NULL) {
4269 audio_format_t format = (audio_format_t)stringToEnum(sFormatNameToEnumTable,
4270 ARRAY_SIZE(sFormatNameToEnumTable),
4271 str);
4272 if (format != AUDIO_FORMAT_DEFAULT) {
4273 profile->mFormats.add(format);
4274 }
4275 str = strtok(NULL, "|");
4276 }
4277 return;
4278}
4279
Eric Laurente0720872014-03-11 09:30:41 -07004280void AudioPolicyManager::loadInChannels(char *name, IOProfile *profile)
Eric Laurente552edb2014-03-10 17:42:56 -07004281{
4282 const char *str = strtok(name, "|");
4283
4284 ALOGV("loadInChannels() %s", name);
4285
4286 if (str != NULL && strcmp(str, DYNAMIC_VALUE_TAG) == 0) {
4287 profile->mChannelMasks.add(0);
4288 return;
4289 }
4290
4291 while (str != NULL) {
4292 audio_channel_mask_t channelMask =
4293 (audio_channel_mask_t)stringToEnum(sInChannelsNameToEnumTable,
4294 ARRAY_SIZE(sInChannelsNameToEnumTable),
4295 str);
4296 if (channelMask != 0) {
4297 ALOGV("loadInChannels() adding channelMask %04x", channelMask);
4298 profile->mChannelMasks.add(channelMask);
4299 }
4300 str = strtok(NULL, "|");
4301 }
4302 return;
4303}
4304
Eric Laurente0720872014-03-11 09:30:41 -07004305void AudioPolicyManager::loadOutChannels(char *name, IOProfile *profile)
Eric Laurente552edb2014-03-10 17:42:56 -07004306{
4307 const char *str = strtok(name, "|");
4308
4309 ALOGV("loadOutChannels() %s", name);
4310
4311 // by convention, "0' in the first entry in mChannelMasks indicates the supported channel
4312 // masks should be read from the output stream after it is opened for the first time
4313 if (str != NULL && strcmp(str, DYNAMIC_VALUE_TAG) == 0) {
4314 profile->mChannelMasks.add(0);
4315 return;
4316 }
4317
4318 while (str != NULL) {
4319 audio_channel_mask_t channelMask =
4320 (audio_channel_mask_t)stringToEnum(sOutChannelsNameToEnumTable,
4321 ARRAY_SIZE(sOutChannelsNameToEnumTable),
4322 str);
4323 if (channelMask != 0) {
4324 profile->mChannelMasks.add(channelMask);
4325 }
4326 str = strtok(NULL, "|");
4327 }
4328 return;
4329}
4330
Eric Laurente0720872014-03-11 09:30:41 -07004331status_t AudioPolicyManager::loadInput(cnode *root, HwModule *module)
Eric Laurente552edb2014-03-10 17:42:56 -07004332{
4333 cnode *node = root->first_child;
4334
4335 IOProfile *profile = new IOProfile(module);
4336
4337 while (node) {
4338 if (strcmp(node->name, SAMPLING_RATES_TAG) == 0) {
4339 loadSamplingRates((char *)node->value, profile);
4340 } else if (strcmp(node->name, FORMATS_TAG) == 0) {
4341 loadFormats((char *)node->value, profile);
4342 } else if (strcmp(node->name, CHANNELS_TAG) == 0) {
4343 loadInChannels((char *)node->value, profile);
4344 } else if (strcmp(node->name, DEVICES_TAG) == 0) {
Eric Laurent3a4311c2014-03-17 12:00:47 -07004345 profile->mSupportedDevices.loadDevicesFromType(parseDeviceNames((char *)node->value));
Eric Laurente552edb2014-03-10 17:42:56 -07004346 }
4347 node = node->next;
4348 }
Eric Laurent3a4311c2014-03-17 12:00:47 -07004349 ALOGW_IF(profile->mSupportedDevices.isEmpty(),
Eric Laurente552edb2014-03-10 17:42:56 -07004350 "loadInput() invalid supported devices");
4351 ALOGW_IF(profile->mChannelMasks.size() == 0,
4352 "loadInput() invalid supported channel masks");
4353 ALOGW_IF(profile->mSamplingRates.size() == 0,
4354 "loadInput() invalid supported sampling rates");
4355 ALOGW_IF(profile->mFormats.size() == 0,
4356 "loadInput() invalid supported formats");
Eric Laurent3a4311c2014-03-17 12:00:47 -07004357 if (!profile->mSupportedDevices.isEmpty() &&
Eric Laurente552edb2014-03-10 17:42:56 -07004358 (profile->mChannelMasks.size() != 0) &&
4359 (profile->mSamplingRates.size() != 0) &&
4360 (profile->mFormats.size() != 0)) {
4361
Eric Laurent3a4311c2014-03-17 12:00:47 -07004362 ALOGV("loadInput() adding input Supported Devices %04x",
4363 profile->mSupportedDevices.types());
Eric Laurente552edb2014-03-10 17:42:56 -07004364
4365 module->mInputProfiles.add(profile);
4366 return NO_ERROR;
4367 } else {
4368 delete profile;
4369 return BAD_VALUE;
4370 }
4371}
4372
Eric Laurente0720872014-03-11 09:30:41 -07004373status_t AudioPolicyManager::loadOutput(cnode *root, HwModule *module)
Eric Laurente552edb2014-03-10 17:42:56 -07004374{
4375 cnode *node = root->first_child;
4376
4377 IOProfile *profile = new IOProfile(module);
4378
4379 while (node) {
4380 if (strcmp(node->name, SAMPLING_RATES_TAG) == 0) {
4381 loadSamplingRates((char *)node->value, profile);
4382 } else if (strcmp(node->name, FORMATS_TAG) == 0) {
4383 loadFormats((char *)node->value, profile);
4384 } else if (strcmp(node->name, CHANNELS_TAG) == 0) {
4385 loadOutChannels((char *)node->value, profile);
4386 } else if (strcmp(node->name, DEVICES_TAG) == 0) {
Eric Laurent3a4311c2014-03-17 12:00:47 -07004387 profile->mSupportedDevices.loadDevicesFromType(parseDeviceNames((char *)node->value));
Eric Laurente552edb2014-03-10 17:42:56 -07004388 } else if (strcmp(node->name, FLAGS_TAG) == 0) {
4389 profile->mFlags = parseFlagNames((char *)node->value);
4390 }
4391 node = node->next;
4392 }
Eric Laurent3a4311c2014-03-17 12:00:47 -07004393 ALOGW_IF(profile->mSupportedDevices.isEmpty(),
Eric Laurente552edb2014-03-10 17:42:56 -07004394 "loadOutput() invalid supported devices");
4395 ALOGW_IF(profile->mChannelMasks.size() == 0,
4396 "loadOutput() invalid supported channel masks");
4397 ALOGW_IF(profile->mSamplingRates.size() == 0,
4398 "loadOutput() invalid supported sampling rates");
4399 ALOGW_IF(profile->mFormats.size() == 0,
4400 "loadOutput() invalid supported formats");
Eric Laurent3a4311c2014-03-17 12:00:47 -07004401 if (!profile->mSupportedDevices.isEmpty() &&
Eric Laurente552edb2014-03-10 17:42:56 -07004402 (profile->mChannelMasks.size() != 0) &&
4403 (profile->mSamplingRates.size() != 0) &&
4404 (profile->mFormats.size() != 0)) {
4405
Eric Laurent3a4311c2014-03-17 12:00:47 -07004406 ALOGV("loadOutput() adding output Supported Devices %04x, mFlags %04x",
4407 profile->mSupportedDevices.types(), profile->mFlags);
Eric Laurente552edb2014-03-10 17:42:56 -07004408
4409 module->mOutputProfiles.add(profile);
4410 return NO_ERROR;
4411 } else {
4412 delete profile;
4413 return BAD_VALUE;
4414 }
4415}
4416
Eric Laurente0720872014-03-11 09:30:41 -07004417void AudioPolicyManager::loadHwModule(cnode *root)
Eric Laurente552edb2014-03-10 17:42:56 -07004418{
4419 cnode *node = config_find(root, OUTPUTS_TAG);
4420 status_t status = NAME_NOT_FOUND;
4421
4422 HwModule *module = new HwModule(root->name);
4423
4424 if (node != NULL) {
Eric Laurente552edb2014-03-10 17:42:56 -07004425 node = node->first_child;
4426 while (node) {
4427 ALOGV("loadHwModule() loading output %s", node->name);
4428 status_t tmpStatus = loadOutput(node, module);
4429 if (status == NAME_NOT_FOUND || status == NO_ERROR) {
4430 status = tmpStatus;
4431 }
4432 node = node->next;
4433 }
4434 }
4435 node = config_find(root, INPUTS_TAG);
4436 if (node != NULL) {
4437 node = node->first_child;
4438 while (node) {
4439 ALOGV("loadHwModule() loading input %s", node->name);
4440 status_t tmpStatus = loadInput(node, module);
4441 if (status == NAME_NOT_FOUND || status == NO_ERROR) {
4442 status = tmpStatus;
4443 }
4444 node = node->next;
4445 }
4446 }
4447 if (status == NO_ERROR) {
4448 mHwModules.add(module);
4449 } else {
4450 delete module;
4451 }
4452}
4453
Eric Laurente0720872014-03-11 09:30:41 -07004454void AudioPolicyManager::loadHwModules(cnode *root)
Eric Laurente552edb2014-03-10 17:42:56 -07004455{
4456 cnode *node = config_find(root, AUDIO_HW_MODULE_TAG);
4457 if (node == NULL) {
4458 return;
4459 }
4460
4461 node = node->first_child;
4462 while (node) {
4463 ALOGV("loadHwModules() loading module %s", node->name);
4464 loadHwModule(node);
4465 node = node->next;
4466 }
4467}
4468
Eric Laurente0720872014-03-11 09:30:41 -07004469void AudioPolicyManager::loadGlobalConfig(cnode *root)
Eric Laurente552edb2014-03-10 17:42:56 -07004470{
4471 cnode *node = config_find(root, GLOBAL_CONFIG_TAG);
4472 if (node == NULL) {
4473 return;
4474 }
4475 node = node->first_child;
4476 while (node) {
4477 if (strcmp(ATTACHED_OUTPUT_DEVICES_TAG, node->name) == 0) {
Eric Laurent3a4311c2014-03-17 12:00:47 -07004478 mAvailableOutputDevices.loadDevicesFromType(parseDeviceNames((char *)node->value));
4479 ALOGV("loadGlobalConfig() Attached Output Devices %08x",
4480 mAvailableOutputDevices.types());
Eric Laurente552edb2014-03-10 17:42:56 -07004481 } else if (strcmp(DEFAULT_OUTPUT_DEVICE_TAG, node->name) == 0) {
Eric Laurent3a4311c2014-03-17 12:00:47 -07004482 audio_devices_t device = (audio_devices_t)stringToEnum(sDeviceNameToEnumTable,
Eric Laurente552edb2014-03-10 17:42:56 -07004483 ARRAY_SIZE(sDeviceNameToEnumTable),
4484 (char *)node->value);
Eric Laurent3a4311c2014-03-17 12:00:47 -07004485 if (device != AUDIO_DEVICE_NONE) {
4486 mDefaultOutputDevice = new DeviceDescriptor(device);
4487 } else {
4488 ALOGW("loadGlobalConfig() default device not specified");
4489 }
4490 ALOGV("loadGlobalConfig() mDefaultOutputDevice %08x", mDefaultOutputDevice->mType);
Eric Laurente552edb2014-03-10 17:42:56 -07004491 } else if (strcmp(ATTACHED_INPUT_DEVICES_TAG, node->name) == 0) {
Eric Laurent3a4311c2014-03-17 12:00:47 -07004492 mAvailableInputDevices.loadDevicesFromType(parseDeviceNames((char *)node->value));
4493 ALOGV("loadGlobalConfig() Available InputDevices %08x", mAvailableInputDevices.types());
Eric Laurente552edb2014-03-10 17:42:56 -07004494 } else if (strcmp(SPEAKER_DRC_ENABLED_TAG, node->name) == 0) {
4495 mSpeakerDrcEnabled = stringToBool((char *)node->value);
4496 ALOGV("loadGlobalConfig() mSpeakerDrcEnabled = %d", mSpeakerDrcEnabled);
4497 }
4498 node = node->next;
4499 }
4500}
4501
Eric Laurente0720872014-03-11 09:30:41 -07004502status_t AudioPolicyManager::loadAudioPolicyConfig(const char *path)
Eric Laurente552edb2014-03-10 17:42:56 -07004503{
4504 cnode *root;
4505 char *data;
4506
4507 data = (char *)load_file(path, NULL);
4508 if (data == NULL) {
4509 return -ENODEV;
4510 }
4511 root = config_node("", "");
4512 config_load(root, data);
4513
4514 loadGlobalConfig(root);
4515 loadHwModules(root);
4516
4517 config_free(root);
4518 free(root);
4519 free(data);
4520
4521 ALOGI("loadAudioPolicyConfig() loaded %s\n", path);
4522
4523 return NO_ERROR;
4524}
4525
Eric Laurente0720872014-03-11 09:30:41 -07004526void AudioPolicyManager::defaultAudioPolicyConfig(void)
Eric Laurente552edb2014-03-10 17:42:56 -07004527{
4528 HwModule *module;
4529 IOProfile *profile;
Eric Laurent3a4311c2014-03-17 12:00:47 -07004530 sp<DeviceDescriptor> defaultInputDevice = new DeviceDescriptor(AUDIO_DEVICE_IN_BUILTIN_MIC);
4531 mAvailableOutputDevices.add(mDefaultOutputDevice);
4532 mAvailableInputDevices.add(defaultInputDevice);
Eric Laurente552edb2014-03-10 17:42:56 -07004533
4534 module = new HwModule("primary");
4535
4536 profile = new IOProfile(module);
4537 profile->mSamplingRates.add(44100);
4538 profile->mFormats.add(AUDIO_FORMAT_PCM_16_BIT);
4539 profile->mChannelMasks.add(AUDIO_CHANNEL_OUT_STEREO);
Eric Laurent3a4311c2014-03-17 12:00:47 -07004540 profile->mSupportedDevices.add(mDefaultOutputDevice);
Eric Laurente552edb2014-03-10 17:42:56 -07004541 profile->mFlags = AUDIO_OUTPUT_FLAG_PRIMARY;
4542 module->mOutputProfiles.add(profile);
4543
4544 profile = new IOProfile(module);
4545 profile->mSamplingRates.add(8000);
4546 profile->mFormats.add(AUDIO_FORMAT_PCM_16_BIT);
4547 profile->mChannelMasks.add(AUDIO_CHANNEL_IN_MONO);
Eric Laurent3a4311c2014-03-17 12:00:47 -07004548 profile->mSupportedDevices.add(defaultInputDevice);
Eric Laurente552edb2014-03-10 17:42:56 -07004549 module->mInputProfiles.add(profile);
4550
4551 mHwModules.add(module);
4552}
4553
4554}; // namespace android