| /* |
| * Copyright (C) 2015 The Android Open Source Project |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| #pragma once |
| |
| #include "AudioPort.h" |
| #include "DeviceDescriptor.h" |
| #include <utils/String8.h> |
| #include <system/audio.h> |
| |
| namespace android { |
| |
| class HwModule; |
| |
| // the IOProfile class describes the capabilities of an output or input stream. |
| // It is currently assumed that all combination of listed parameters are supported. |
| // It is used by the policy manager to determine if an output or input is suitable for |
| // a given use case, open/close it accordingly and connect/disconnect audio tracks |
| // to/from it. |
| class IOProfile : public AudioPort |
| { |
| public: |
| IOProfile(const String8 &name, audio_port_role_t role) |
| : AudioPort(name, AUDIO_PORT_TYPE_MIX, role), |
| maxOpenCount((role == AUDIO_PORT_ROLE_SOURCE) ? 1 : 0), |
| curOpenCount(0), |
| maxActiveCount(1), |
| curActiveCount(0) {} |
| |
| // For a Profile aka MixPort, tag name and name are equivalent. |
| virtual const String8 getTagName() const { return getName(); } |
| |
| // FIXME: this is needed because shared MMAP stream clients use the same audio session. |
| // Once capture clients are tracked individually and not per session this can be removed |
| // MMAP no IRQ input streams do not have the default limitation of one active client |
| // max as they can be used in shared mode by the same application. |
| // NOTE: this works for explicit values set in audio_policy_configuration.xml because |
| // flags are parsed before maxActiveCount by the serializer. |
| void setFlags(uint32_t flags) override |
| { |
| AudioPort::setFlags(flags); |
| if (getRole() == AUDIO_PORT_ROLE_SINK && (flags & AUDIO_INPUT_FLAG_MMAP_NOIRQ) != 0) { |
| maxActiveCount = 0; |
| } |
| } |
| |
| // This method is used for input and direct output, and is not used for other output. |
| // If parameter updatedSamplingRate is non-NULL, it is assigned the actual sample rate. |
| // For input, flags is interpreted as audio_input_flags_t. |
| // TODO: merge audio_output_flags_t and audio_input_flags_t. |
| bool isCompatibleProfile(audio_devices_t device, |
| const String8& address, |
| uint32_t samplingRate, |
| uint32_t *updatedSamplingRate, |
| audio_format_t format, |
| audio_format_t *updatedFormat, |
| audio_channel_mask_t channelMask, |
| audio_channel_mask_t *updatedChannelMask, |
| // FIXME parameter type |
| uint32_t flags, |
| bool exactMatchRequiredForInputFlags = false) const; |
| |
| void dump(String8 *dst) const; |
| void log(); |
| |
| bool hasSupportedDevices() const { return !mSupportedDevices.isEmpty(); } |
| |
| bool supportDevice(audio_devices_t device) const |
| { |
| if (audio_is_output_devices(device)) { |
| return mSupportedDevices.types() & device; |
| } |
| return mSupportedDevices.types() & (device & ~AUDIO_DEVICE_BIT_IN); |
| } |
| |
| bool supportDeviceAddress(const String8 &address) const |
| { |
| return mSupportedDevices[0]->mAddress == address; |
| } |
| |
| // chose first device present in mSupportedDevices also part of deviceType |
| audio_devices_t getSupportedDeviceForType(audio_devices_t deviceType) const |
| { |
| for (size_t k = 0; k < mSupportedDevices.size(); k++) { |
| audio_devices_t profileType = mSupportedDevices[k]->type(); |
| if (profileType & deviceType) { |
| return profileType; |
| } |
| } |
| return AUDIO_DEVICE_NONE; |
| } |
| |
| audio_devices_t getSupportedDevicesType() const { return mSupportedDevices.types(); } |
| |
| void clearSupportedDevices() { mSupportedDevices.clear(); } |
| void addSupportedDevice(const sp<DeviceDescriptor> &device) |
| { |
| mSupportedDevices.add(device); |
| } |
| |
| void setSupportedDevices(const DeviceVector &devices) |
| { |
| mSupportedDevices = devices; |
| } |
| |
| sp<DeviceDescriptor> getSupportedDeviceByAddress(audio_devices_t type, String8 address) const |
| { |
| return mSupportedDevices.getDevice(type, address); |
| } |
| |
| const DeviceVector &getSupportedDevices() const { return mSupportedDevices; } |
| |
| bool canOpenNewIo() { |
| if (maxOpenCount == 0 || curOpenCount < maxOpenCount) { |
| return true; |
| } |
| return false; |
| } |
| |
| bool canStartNewIo() { |
| if (maxActiveCount == 0 || curActiveCount < maxActiveCount) { |
| return true; |
| } |
| return false; |
| } |
| |
| // Maximum number of input or output streams that can be simultaneously opened for this profile. |
| // By convention 0 means no limit. To respect legacy behavior, initialized to 1 for output |
| // profiles and 0 for input profiles |
| uint32_t maxOpenCount; |
| // Number of streams currently opened for this profile. |
| uint32_t curOpenCount; |
| // Maximum number of input or output streams that can be simultaneously active for this profile. |
| // By convention 0 means no limit. To respect legacy behavior, initialized to 0 for output |
| // profiles and 1 for input profiles |
| uint32_t maxActiveCount; |
| // Number of streams currently active for this profile. This is not the number of active clients |
| // (AudioTrack or AudioRecord) but the number of active HAL streams. |
| uint32_t curActiveCount; |
| |
| private: |
| DeviceVector mSupportedDevices; // supported devices: this input/output can be routed from/to |
| }; |
| |
| class InputProfile : public IOProfile |
| { |
| public: |
| explicit InputProfile(const String8 &name) : IOProfile(name, AUDIO_PORT_ROLE_SINK) {} |
| }; |
| |
| class OutputProfile : public IOProfile |
| { |
| public: |
| explicit OutputProfile(const String8 &name) : IOProfile(name, AUDIO_PORT_ROLE_SOURCE) {} |
| }; |
| |
| } // namespace android |