You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
98 lines
3.0 KiB
98 lines
3.0 KiB
/*
|
|
**
|
|
** 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 <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,
|
|
};
|
|
|
|
AudioHwDevice(audio_module_handle_t handle,
|
|
const char *moduleName,
|
|
sp<DeviceHalInterface> hwDevice,
|
|
Flags flags)
|
|
: mHandle(handle)
|
|
, mModuleName(strdup(moduleName))
|
|
, mHwDevice(hwDevice)
|
|
, mFlags(flags) { }
|
|
virtual ~AudioHwDevice() { free((void *)mModuleName); }
|
|
|
|
bool canSetMasterVolume() const {
|
|
return (0 != (mFlags & AHWD_CAN_SET_MASTER_VOLUME));
|
|
}
|
|
|
|
bool canSetMasterMute() const {
|
|
return (0 != (mFlags & AHWD_CAN_SET_MASTER_MUTE));
|
|
}
|
|
|
|
bool isInsert() const {
|
|
return (0 != (mFlags & AHWD_IS_INSERT));
|
|
}
|
|
|
|
audio_module_handle_t handle() const { return mHandle; }
|
|
const char *moduleName() const { return mModuleName; }
|
|
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);
|
|
|
|
bool supportsAudioPatches() const;
|
|
|
|
status_t getAudioPort(struct audio_port_v7 *port) 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
|