1 /* 2 * Copyright (C) 2011 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 #define LOG_TAG "qcom_audio_policy_hal" 18 //#define LOG_NDEBUG 0 19 20 #include <stdint.h> 21 22 #include <hardware/hardware.h> 23 #include <system/audio.h> 24 #include <system/audio_policy.h> 25 #include <hardware/audio_policy.h> 26 27 #include <hardware_legacy/AudioPolicyInterface.h> 28 #include <hardware_legacy/AudioSystemLegacy.h> 29 30 #include "AudioPolicyCompatClient.h" 31 32 namespace android_audio_legacy { 33 34 extern "C" { 35 36 struct qcom_ap_module { 37 struct audio_policy_module module; 38 }; 39 40 struct qcom_ap_device { 41 struct audio_policy_device device; 42 }; 43 44 struct qcom_audio_policy { 45 struct audio_policy policy; 46 47 void *service; 48 struct audio_policy_service_ops *aps_ops; 49 AudioPolicyCompatClient *service_client; 50 AudioPolicyInterface *apm; 51 }; 52 53 static inline struct qcom_audio_policy * to_qap(struct audio_policy *pol) 54 { 55 return reinterpret_cast<struct qcom_audio_policy *>(pol); 56 } 57 58 static inline const struct qcom_audio_policy * to_cqap(const struct audio_policy *pol) 59 { 60 return reinterpret_cast<const struct qcom_audio_policy *>(pol); 61 } 62 63 64 static int ap_set_device_connection_state(struct audio_policy *pol, 65 audio_devices_t device, 66 audio_policy_dev_state_t state, 67 const char *device_address) 68 { 69 struct qcom_audio_policy *qap = to_qap(pol); 70 return qap->apm->setDeviceConnectionState( 71 (AudioSystem::audio_devices)device, 72 (AudioSystem::device_connection_state)state, 73 device_address); 74 } 75 76 static audio_policy_dev_state_t ap_get_device_connection_state( 77 const struct audio_policy *pol, 78 audio_devices_t device, 79 const char *device_address) 80 { 81 const struct qcom_audio_policy *qap = to_cqap(pol); 82 return (audio_policy_dev_state_t)qap->apm->getDeviceConnectionState( 83 (AudioSystem::audio_devices)device, 84 device_address); 85 } 86 87 static void ap_set_phone_state(struct audio_policy *pol, audio_mode_t state) 88 { 89 struct qcom_audio_policy *qap = to_qap(pol); 90 // as this is the legacy API, don't change it to use audio_mode_t instead of int 91 qap->apm->setPhoneState((int) state); 92 } 93 94 /* indicate a change in ringer mode */ 95 static void ap_set_ringer_mode(struct audio_policy *pol, uint32_t mode, 96 uint32_t mask) 97 { 98 // deprecated, never called 99 } 100 101 /* force using a specific device category for the specified usage */ 102 static void ap_set_force_use(struct audio_policy *pol, 103 audio_policy_force_use_t usage, 104 audio_policy_forced_cfg_t config) 105 { 106 struct qcom_audio_policy *qap = to_qap(pol); 107 qap->apm->setForceUse((AudioSystem::force_use)usage, 108 (AudioSystem::forced_config)config); 109 } 110 111 /* retreive current device category forced for a given usage */ 112 static audio_policy_forced_cfg_t ap_get_force_use( 113 const struct audio_policy *pol, 114 audio_policy_force_use_t usage) 115 { 116 const struct qcom_audio_policy *qap = to_cqap(pol); 117 return (audio_policy_forced_cfg_t)qap->apm->getForceUse( 118 (AudioSystem::force_use)usage); 119 } 120 121 /* if can_mute is true, then audio streams that are marked ENFORCED_AUDIBLE 122 * can still be muted. */ 123 static void ap_set_can_mute_enforced_audible(struct audio_policy *pol, 124 bool can_mute) 125 { 126 struct qcom_audio_policy *qap = to_qap(pol); 127 qap->apm->setSystemProperty("ro.camera.sound.forced", can_mute ? "0" : "1"); 128 } 129 130 static int ap_init_check(const struct audio_policy *pol) 131 { 132 const struct qcom_audio_policy *qap = to_cqap(pol); 133 return qap->apm->initCheck(); 134 } 135 136 static audio_io_handle_t ap_get_output(struct audio_policy *pol, 137 audio_stream_type_t stream, 138 uint32_t sampling_rate, 139 audio_format_t format, 140 audio_channel_mask_t channelMask, 141 audio_output_flags_t flags) 142 { 143 struct qcom_audio_policy *qap = to_qap(pol); 144 145 ALOGV("%s: tid %d", __func__, gettid()); 146 return qap->apm->getOutput((AudioSystem::stream_type)stream, 147 sampling_rate, (int) format, channelMask, 148 (AudioSystem::output_flags)flags); 149 } 150 151 static int ap_start_output(struct audio_policy *pol, audio_io_handle_t output, 152 audio_stream_type_t stream, int session) 153 { 154 struct qcom_audio_policy *qap = to_qap(pol); 155 return qap->apm->startOutput(output, (AudioSystem::stream_type)stream, 156 session); 157 } 158 159 static int ap_stop_output(struct audio_policy *pol, audio_io_handle_t output, 160 audio_stream_type_t stream, int session) 161 { 162 struct qcom_audio_policy *qap = to_qap(pol); 163 return qap->apm->stopOutput(output, (AudioSystem::stream_type)stream, 164 session); 165 } 166 167 static void ap_release_output(struct audio_policy *pol, 168 audio_io_handle_t output) 169 { 170 struct qcom_audio_policy *qap = to_qap(pol); 171 qap->apm->releaseOutput(output); 172 } 173 174 static audio_io_handle_t ap_get_input(struct audio_policy *pol, audio_source_t inputSource, 175 uint32_t sampling_rate, 176 audio_format_t format, 177 audio_channel_mask_t channelMask, 178 audio_in_acoustics_t acoustics) 179 { 180 struct qcom_audio_policy *qap = to_qap(pol); 181 return qap->apm->getInput((int) inputSource, sampling_rate, (int) format, channelMask, 182 (AudioSystem::audio_in_acoustics)acoustics); 183 } 184 185 static int ap_start_input(struct audio_policy *pol, audio_io_handle_t input) 186 { 187 struct qcom_audio_policy *qap = to_qap(pol); 188 return qap->apm->startInput(input); 189 } 190 191 static int ap_stop_input(struct audio_policy *pol, audio_io_handle_t input) 192 { 193 struct qcom_audio_policy *qap = to_qap(pol); 194 return qap->apm->stopInput(input); 195 } 196 197 static void ap_release_input(struct audio_policy *pol, audio_io_handle_t input) 198 { 199 struct qcom_audio_policy *qap = to_qap(pol); 200 qap->apm->releaseInput(input); 201 } 202 203 static void ap_init_stream_volume(struct audio_policy *pol, 204 audio_stream_type_t stream, int index_min, 205 int index_max) 206 { 207 struct qcom_audio_policy *qap = to_qap(pol); 208 qap->apm->initStreamVolume((AudioSystem::stream_type)stream, index_min, 209 index_max); 210 } 211 212 static int ap_set_stream_volume_index(struct audio_policy *pol, 213 audio_stream_type_t stream, 214 int index) 215 { 216 struct qcom_audio_policy *qap = to_qap(pol); 217 return qap->apm->setStreamVolumeIndex((AudioSystem::stream_type)stream, 218 index, 219 AUDIO_DEVICE_OUT_DEFAULT); 220 } 221 222 static int ap_get_stream_volume_index(const struct audio_policy *pol, 223 audio_stream_type_t stream, 224 int *index) 225 { 226 const struct qcom_audio_policy *qap = to_cqap(pol); 227 return qap->apm->getStreamVolumeIndex((AudioSystem::stream_type)stream, 228 index, 229 AUDIO_DEVICE_OUT_DEFAULT); 230 } 231 232 static int ap_set_stream_volume_index_for_device(struct audio_policy *pol, 233 audio_stream_type_t stream, 234 int index, 235 audio_devices_t device) 236 { 237 const struct qcom_audio_policy *qap = to_cqap(pol); 238 return qap->apm->setStreamVolumeIndex((AudioSystem::stream_type)stream, 239 index, 240 device); 241 } 242 243 static int ap_get_stream_volume_index_for_device(const struct audio_policy *pol, 244 audio_stream_type_t stream, 245 int *index, 246 audio_devices_t device) 247 { 248 const struct qcom_audio_policy *qap = to_cqap(pol); 249 return qap->apm->getStreamVolumeIndex((AudioSystem::stream_type)stream, 250 index, 251 device); 252 } 253 254 static uint32_t ap_get_strategy_for_stream(const struct audio_policy *pol, 255 audio_stream_type_t stream) 256 { 257 const struct qcom_audio_policy *qap = to_cqap(pol); 258 return qap->apm->getStrategyForStream((AudioSystem::stream_type)stream); 259 } 260 261 static audio_devices_t ap_get_devices_for_stream(const struct audio_policy *pol, 262 audio_stream_type_t stream) 263 { 264 const struct qcom_audio_policy *qap = to_cqap(pol); 265 return qap->apm->getDevicesForStream((AudioSystem::stream_type)stream); 266 } 267 268 static audio_io_handle_t ap_get_output_for_effect(struct audio_policy *pol, 269 const struct effect_descriptor_s *desc) 270 { 271 struct qcom_audio_policy *qap = to_qap(pol); 272 return qap->apm->getOutputForEffect(desc); 273 } 274 275 static int ap_register_effect(struct audio_policy *pol, 276 const struct effect_descriptor_s *desc, 277 audio_io_handle_t io, 278 uint32_t strategy, 279 int session, 280 int id) 281 { 282 struct qcom_audio_policy *qap = to_qap(pol); 283 return qap->apm->registerEffect(desc, io, strategy, session, id); 284 } 285 286 static int ap_unregister_effect(struct audio_policy *pol, int id) 287 { 288 struct qcom_audio_policy *qap = to_qap(pol); 289 return qap->apm->unregisterEffect(id); 290 } 291 292 static int ap_set_effect_enabled(struct audio_policy *pol, int id, bool enabled) 293 { 294 struct qcom_audio_policy *qap = to_qap(pol); 295 return qap->apm->setEffectEnabled(id, enabled); 296 } 297 298 static bool ap_is_stream_active(const struct audio_policy *pol, 299 audio_stream_type_t stream, 300 uint32_t in_past_ms) 301 { 302 const struct qcom_audio_policy *qap = to_cqap(pol); 303 return qap->apm->isStreamActive((int) stream, in_past_ms); 304 } 305 306 static bool ap_is_stream_active_remotely(const struct audio_policy *pol, 307 audio_stream_type_t stream, uint32_t in_past_ms) 308 { 309 const struct qcom_audio_policy *qap = to_cqap(pol); 310 return qap->apm->isStreamActiveRemotely((int) stream, in_past_ms); 311 } 312 313 static bool ap_is_source_active(const struct audio_policy *pol, audio_source_t source) 314 { 315 const struct qcom_audio_policy *qap = to_cqap(pol); 316 return qap->apm->isSourceActive(source); 317 } 318 319 static int ap_dump(const struct audio_policy *pol, int fd) 320 { 321 const struct qcom_audio_policy *qap = to_cqap(pol); 322 return qap->apm->dump(fd); 323 } 324 325 static int create_qcom_ap(const struct audio_policy_device *device, 326 struct audio_policy_service_ops *aps_ops, 327 void *service, 328 struct audio_policy **ap) 329 { 330 struct qcom_audio_policy *qap; 331 int ret; 332 333 if (!service || !aps_ops) 334 return -EINVAL; 335 336 qap = (struct qcom_audio_policy *)calloc(1, sizeof(*qap)); 337 if (!qap) 338 return -ENOMEM; 339 340 qap->policy.set_device_connection_state = ap_set_device_connection_state; 341 qap->policy.get_device_connection_state = ap_get_device_connection_state; 342 qap->policy.set_phone_state = ap_set_phone_state; 343 qap->policy.set_ringer_mode = ap_set_ringer_mode; 344 qap->policy.set_force_use = ap_set_force_use; 345 qap->policy.get_force_use = ap_get_force_use; 346 qap->policy.set_can_mute_enforced_audible = 347 ap_set_can_mute_enforced_audible; 348 qap->policy.init_check = ap_init_check; 349 qap->policy.get_output = ap_get_output; 350 qap->policy.start_output = ap_start_output; 351 qap->policy.stop_output = ap_stop_output; 352 qap->policy.release_output = ap_release_output; 353 qap->policy.get_input = ap_get_input; 354 qap->policy.start_input = ap_start_input; 355 qap->policy.stop_input = ap_stop_input; 356 qap->policy.release_input = ap_release_input; 357 qap->policy.init_stream_volume = ap_init_stream_volume; 358 qap->policy.set_stream_volume_index = ap_set_stream_volume_index; 359 qap->policy.get_stream_volume_index = ap_get_stream_volume_index; 360 qap->policy.set_stream_volume_index_for_device = ap_set_stream_volume_index_for_device; 361 qap->policy.get_stream_volume_index_for_device = ap_get_stream_volume_index_for_device; 362 qap->policy.get_strategy_for_stream = ap_get_strategy_for_stream; 363 qap->policy.get_devices_for_stream = ap_get_devices_for_stream; 364 qap->policy.get_output_for_effect = ap_get_output_for_effect; 365 qap->policy.register_effect = ap_register_effect; 366 qap->policy.unregister_effect = ap_unregister_effect; 367 qap->policy.set_effect_enabled = ap_set_effect_enabled; 368 qap->policy.is_stream_active = ap_is_stream_active; 369 qap->policy.is_stream_active_remotely = ap_is_stream_active_remotely; 370 qap->policy.is_source_active = ap_is_source_active; 371 qap->policy.dump = ap_dump; 372 373 qap->service = service; 374 qap->aps_ops = aps_ops; 375 qap->service_client = 376 new AudioPolicyCompatClient(aps_ops, service); 377 if (!qap->service_client) { 378 ret = -ENOMEM; 379 goto err_new_compat_client; 380 } 381 382 qap->apm = createAudioPolicyManager(qap->service_client); 383 if (!qap->apm) { 384 ret = -ENOMEM; 385 goto err_create_apm; 386 } 387 388 *ap = &qap->policy; 389 return 0; 390 391 err_create_apm: 392 delete qap->service_client; 393 err_new_compat_client: 394 free(qap); 395 *ap = NULL; 396 return ret; 397 } 398 399 static int destroy_qcom_ap(const struct audio_policy_device *ap_dev, 400 struct audio_policy *ap) 401 { 402 struct qcom_audio_policy *qap = to_qap(ap); 403 404 if (!qap) 405 return 0; 406 407 if (qap->apm) 408 destroyAudioPolicyManager(qap->apm); 409 if (qap->service_client) 410 delete qap->service_client; 411 free(qap); 412 return 0; 413 } 414 415 static int qcom_ap_dev_close(hw_device_t* device) 416 { 417 if (device) 418 free(device); 419 return 0; 420 } 421 422 static int qcom_ap_dev_open(const hw_module_t* module, const char* name, 423 hw_device_t** device) 424 { 425 struct qcom_ap_device *dev; 426 427 if (strcmp(name, AUDIO_POLICY_INTERFACE) != 0) 428 return -EINVAL; 429 430 dev = (struct qcom_ap_device *)calloc(1, sizeof(*dev)); 431 if (!dev) 432 return -ENOMEM; 433 434 dev->device.common.tag = HARDWARE_DEVICE_TAG; 435 dev->device.common.version = 0; 436 dev->device.common.module = const_cast<hw_module_t*>(module); 437 dev->device.common.close = qcom_ap_dev_close; 438 dev->device.create_audio_policy = create_qcom_ap; 439 dev->device.destroy_audio_policy = destroy_qcom_ap; 440 441 *device = &dev->device.common; 442 443 return 0; 444 } 445 446 static struct hw_module_methods_t qcom_ap_module_methods = { 447 open: qcom_ap_dev_open 448 }; 449 450 struct qcom_ap_module HAL_MODULE_INFO_SYM = { 451 module: { 452 common: { 453 tag: HARDWARE_MODULE_TAG, 454 version_major: 1, 455 version_minor: 0, 456 id: AUDIO_POLICY_HARDWARE_MODULE_ID, 457 name: "QCOM Audio Policy HAL", 458 author: "Code Aurora Forum", 459 methods: &qcom_ap_module_methods, 460 dso : NULL, 461 reserved : {0}, 462 }, 463 }, 464 }; 465 466 }; // extern "C" 467 468 }; // namespace android_audio_legacy 469
