AudioFlinger: Add datapath subproject
Test: ALLOW_LOCAL_TIDY_TRUE=1 mm -j .
Bug: 287521708
Merged-In: I1fbe85ff5c5fc58a3e49fa137b4247b33f919ecb
Change-Id: I1fbe85ff5c5fc58a3e49fa137b4247b33f919ecb
(cherry picked from commit 76913a08cba261ea59ca436ee99ff1ea3f2de6e8)
diff --git a/services/audioflinger/datapath/AudioHwDevice.h b/services/audioflinger/datapath/AudioHwDevice.h
new file mode 100644
index 0000000..f9cb80e
--- /dev/null
+++ b/services/audioflinger/datapath/AudioHwDevice.h
@@ -0,0 +1,113 @@
+/*
+**
+** Copyright 2007, 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.
+*/
+
+#ifndef ANDROID_AUDIO_HW_DEVICE_H
+#define ANDROID_AUDIO_HW_DEVICE_H
+
+#include <stdint.h>
+#include <stdlib.h>
+#include <sys/types.h>
+
+#include <android/media/audio/common/AudioMMapPolicyInfo.h>
+#include <android/media/audio/common/AudioMMapPolicyType.h>
+#include <media/audiohal/DeviceHalInterface.h>
+#include <utils/Errors.h>
+#include <system/audio.h>
+
+namespace android {
+
+class AudioStreamOut;
+
+class AudioHwDevice {
+public:
+ enum Flags {
+ AHWD_CAN_SET_MASTER_VOLUME = 0x1,
+ AHWD_CAN_SET_MASTER_MUTE = 0x2,
+ // Means that this isn't a terminal module, and software patches
+ // are used to transport audio data further.
+ AHWD_IS_INSERT = 0x4,
+ // This Module supports BT Latency mode control
+ AHWD_SUPPORTS_BT_LATENCY_MODES = 0x8,
+ };
+
+ AudioHwDevice(audio_module_handle_t handle,
+ const char *moduleName,
+ const sp<DeviceHalInterface>& hwDevice,
+ Flags flags)
+ : mHandle(handle)
+ , mModuleName(strdup(moduleName))
+ , mHwDevice(hwDevice)
+ , mFlags(flags) { }
+ virtual ~AudioHwDevice() { free((void *)mModuleName); }
+
+ [[nodiscard]] bool canSetMasterVolume() const {
+ return (0 != (mFlags & AHWD_CAN_SET_MASTER_VOLUME));
+ }
+
+ [[nodiscard]] bool canSetMasterMute() const {
+ return (0 != (mFlags & AHWD_CAN_SET_MASTER_MUTE));
+ }
+
+ [[nodiscard]] bool isInsert() const {
+ return (0 != (mFlags & AHWD_IS_INSERT));
+ }
+
+ [[nodiscard]] bool supportsBluetoothVariableLatency() const {
+ return (0 != (mFlags & AHWD_SUPPORTS_BT_LATENCY_MODES));
+ }
+
+ [[nodiscard]] audio_module_handle_t handle() const { return mHandle; }
+ [[nodiscard]] const char *moduleName() const { return mModuleName; }
+ [[nodiscard]] sp<DeviceHalInterface> hwDevice() const { return mHwDevice; }
+
+ /** This method creates and opens the audio hardware output stream.
+ * The "address" parameter qualifies the "devices" audio device type if needed.
+ * The format format depends on the device type:
+ * - Bluetooth devices use the MAC address of the device in the form "00:11:22:AA:BB:CC"
+ * - USB devices use the ALSA card and device numbers in the form "card=X;device=Y"
+ * - Other devices may use a number or any other string.
+ */
+ status_t openOutputStream(
+ AudioStreamOut **ppStreamOut,
+ audio_io_handle_t handle,
+ audio_devices_t deviceType,
+ audio_output_flags_t flags,
+ struct audio_config *config,
+ const char *address);
+
+ [[nodiscard]] bool supportsAudioPatches() const;
+
+ [[nodiscard]] status_t getAudioPort(struct audio_port_v7 *port) const;
+
+ [[nodiscard]] status_t getMmapPolicyInfos(
+ media::audio::common::AudioMMapPolicyType policyType,
+ std::vector<media::audio::common::AudioMMapPolicyInfo> *policyInfos) const;
+
+ [[nodiscard]] int32_t getAAudioMixerBurstCount() const;
+
+ [[nodiscard]] int32_t getAAudioHardwareBurstMinUsec() const;
+
+private:
+ const audio_module_handle_t mHandle;
+ const char * const mModuleName;
+ sp<DeviceHalInterface> mHwDevice;
+ const Flags mFlags;
+};
+
+} // namespace android
+
+#endif // ANDROID_AUDIO_HW_DEVICE_H