/* AudioHardwareALSA.h
**
** Copyright 2008-2010, Wind River Systems
** Copyright (c) 2011-2012, Code Aurora Forum. All rights reserved.
**
** 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_HARDWARE_ALSA_H
#define ANDROID_AUDIO_HARDWARE_ALSA_H
#define QCOM_CSDCLIENT_ENABLED 1
#include <utils/List.h>
#include <hardware_legacy/AudioHardwareBase.h>
#include <hardware_legacy/AudioHardwareInterface.h>
#include <hardware_legacy/AudioSystemLegacy.h>
#include <system/audio.h>
#include <hardware/audio.h>
#include <utils/threads.h>
#include <dlfcn.h>
#ifdef QCOM_USBAUDIO_ENABLED
#include <AudioUsbALSA.h>
#endif
extern "C" {
#include <sound/asound.h>
#include "alsa_audio.h"
#include "msm8960_use_cases.h"
}
#include <hardware/hardware.h>
namespace android_audio_legacy
{
using android::List;
using android::Mutex;
class AudioHardwareALSA;
/**
* The id of ALSA module
*/
#define ALSA_HARDWARE_MODULE_ID "alsa"
#define ALSA_HARDWARE_NAME "alsa"
#define DEFAULT_SAMPLING_RATE 48000
#define DEFAULT_CHANNEL_MODE 2
#define VOICE_SAMPLING_RATE 8000
#define VOICE_CHANNEL_MODE 1
#define PLAYBACK_LATENCY 170000
#define RECORD_LATENCY 96000
#define VOICE_LATENCY 85333
#define DEFAULT_BUFFER_SIZE 4096
//4032 = 336(kernel buffer size) * 2(bytes pcm_16) * 6(number of channels)
#define DEFAULT_MULTI_CHANNEL_BUF_SIZE 4032
#define DEFAULT_VOICE_BUFFER_SIZE 2048
#define PLAYBACK_LOW_LATENCY_BUFFER_SIZE 1024
#define PLAYBACK_LOW_LATENCY 22000
#define PLAYBACK_LOW_LATENCY_MEASURED 42000
#define DEFAULT_IN_BUFFER_SIZE 320
#define MIN_CAPTURE_BUFFER_SIZE_PER_CH 320
#define MAX_CAPTURE_BUFFER_SIZE_PER_CH 2048
#define FM_BUFFER_SIZE 1024
#define VOIP_SAMPLING_RATE_8K 8000
#define VOIP_SAMPLING_RATE_16K 16000
#define VOIP_DEFAULT_CHANNEL_MODE 1
#define VOIP_BUFFER_SIZE_8K 320
#define VOIP_BUFFER_SIZE_16K 640
#define VOIP_BUFFER_MAX_SIZE VOIP_BUFFER_SIZE_16K
#define VOIP_PLAYBACK_LATENCY 6400
#define VOIP_RECORD_LATENCY 6400
#define MODE_IS127 0x2
#define MODE_4GV_NB 0x3
#define MODE_4GV_WB 0x4
#define MODE_AMR 0x5
#define MODE_AMR_WB 0xD
#define MODE_PCM 0xC
#define DUALMIC_KEY "dualmic_enabled"
#define FLUENCE_KEY "fluence"
#define ANC_KEY "anc_enabled"
#define TTY_MODE_KEY "tty_mode"
#define BT_SAMPLERATE_KEY "bt_samplerate"
#define BTHEADSET_VGS "bt_headset_vgs"
#define WIDEVOICE_KEY "wide_voice_enable"
#define VOIPRATE_KEY "voip_rate"
#define FENS_KEY "fens_enable"
#define ST_KEY "st_enable"
#define INCALLMUSIC_KEY "incall_music_enabled"
#define ANC_FLAG 0x00000001
#define DMIC_FLAG 0x00000002
#define QMIC_FLAG 0x00000004
#ifdef QCOM_SSR_ENABLED
#define SSRQMIC_FLAG 0x00000008
#endif
#define TTY_OFF 0x00000010
#define TTY_FULL 0x00000020
#define TTY_VCO 0x00000040
#define TTY_HCO 0x00000080
#define TTY_CLEAR 0xFFFFFF0F
#define LPA_SESSION_ID 1
#define TUNNEL_SESSION_ID 2
#ifdef QCOM_USBAUDIO_ENABLED
static int USBPLAYBACKBIT_MUSIC = (1 << 0);
static int USBPLAYBACKBIT_VOICECALL = (1 << 1);
static int USBPLAYBACKBIT_VOIPCALL = (1 << 2);
static int USBPLAYBACKBIT_FM = (1 << 3);
static int USBPLAYBACKBIT_LPA = (1 << 4);
static int USBRECBIT_REC = (1 << 0);
static int USBRECBIT_VOICECALL = (1 << 1);
static int USBRECBIT_VOIPCALL = (1 << 2);
static int USBRECBIT_FM = (1 << 3);
#endif
#define DEVICE_SPEAKER_HEADSET "Speaker Headset"
#define DEVICE_HEADSET "Headset"
#define DEVICE_HEADPHONES "Headphones"
#ifdef QCOM_SSR_ENABLED
#define COEFF_ARRAY_SIZE 4
#define FILT_SIZE ((512+1)* 6) /* # ((FFT bins)/2+1)*numOutputs */
#define SSR_FRAME_SIZE 512
#define SSR_INPUT_FRAME_SIZE (SSR_FRAME_SIZE * 4)
#define SSR_OUTPUT_FRAME_SIZE (SSR_FRAME_SIZE * 6)
#endif
#define MODE_CALL_KEY "CALL_KEY"
struct alsa_device_t;
static uint32_t FLUENCE_MODE_ENDFIRE = 0;
static uint32_t FLUENCE_MODE_BROADSIDE = 1;
enum {
INCALL_REC_MONO,
INCALL_REC_STEREO,
};
enum audio_call_mode {
CS_INACTIVE = 0x0,
CS_ACTIVE = 0x1,
CS_HOLD = 0x2,
IMS_INACTIVE = 0x0,
IMS_ACTIVE = 0x10,
IMS_HOLD = 0x20
};
struct alsa_handle_t {
alsa_device_t * module;
uint32_t devices;
char useCase[MAX_STR_LEN];
struct pcm * handle;
snd_pcm_format_t format;
uint32_t channels;
audio_channel_mask_t channelMask;
uint32_t sampleRate;
unsigned int latency; // Delay in usec
unsigned int bufferSize; // Size of sample buffer
unsigned int periodSize;
bool isDeepbufferOutput;
struct pcm * rxHandle;
snd_use_case_mgr_t *ucMgr;
};
typedef List < alsa_handle_t > ALSAHandleList;
struct use_case_t {
char useCase[MAX_STR_LEN];
};
typedef List < use_case_t > ALSAUseCaseList;
struct alsa_device_t {
hw_device_t common;
status_t (*init)(alsa_device_t *, ALSAHandleList &);
status_t (*open)(alsa_handle_t *);
status_t (*close)(alsa_handle_t *);
status_t (*standby)(alsa_handle_t *);
status_t (*route)(alsa_handle_t *, uint32_t, int);
status_t (*startVoiceCall)(alsa_handle_t *);
status_t (*startVoipCall)(alsa_handle_t *);
status_t (*startFm)(alsa_handle_t *);
void (*setVoiceVolume)(int);
void (*setVoipVolume)(int);
void (*setMicMute)(int);
void (*setVoipMicMute)(int);
void (*setVoipConfig)(int, int);
status_t (*setFmVolume)(int);
void (*setBtscoRate)(int);
status_t (*setLpaVolume)(int);
void (*enableWideVoice)(bool);
void (*enableFENS)(bool);
void (*setFlags)(uint32_t);
status_t (*setCompressedVolume)(int);
void (*enableSlowTalk)(bool);
void (*setVocRecMode)(uint8_t);
void (*setVoLTEMicMute)(int);
void (*setVoLTEVolume)(int);
#ifdef SEPERATED_AUDIO_INPUT
void (*setInput)(int);
#endif
#ifdef QCOM_CSDCLIENT_ENABLED
void (*setCsdHandle)(void*);
#endif
};
// ----------------------------------------------------------------------------
class ALSAMixer
{
public:
ALSAMixer();
virtual ~ALSAMixer();
bool isValid() { return 1;}
status_t setMasterVolume(float volume);
status_t setMasterGain(float gain);
status_t setVolume(uint32_t device, float left, float right);
status_t setGain(uint32_t device, float gain);
status_t setCaptureMuteState(uint32_t device, bool state);
status_t getCaptureMuteState(uint32_t device, bool *state);
status_t setPlaybackMuteState(uint32_t device, bool state);
status_t getPlaybackMuteState(uint32_t device, bool *state);
};
class ALSAControl
{
public:
ALSAControl(const char *device = "/dev/snd/controlC0");
virtual ~ALSAControl();
status_t get(const char *name, unsigned int &value, int index = 0);
status_t set(const char *name, unsigned int value, int index = -1);
status_t set(const char *name, const char *);
status_t setext(const char *name, int count, char **setValues);
private:
struct mixer* mHandle;
};
class ALSAStreamOps
{
public:
ALSAStreamOps(AudioHardwareALSA *parent, alsa_handle_t *handle);
virtual ~ALSAStreamOps();
status_t set(int *format, uint32_t *channels, uint32_t *rate, uint32_t device);
status_t setParameters(const String8& keyValuePairs);
String8 getParameters(const String8& keys);
uint32_t sampleRate() const;
size_t bufferSize() const;
int format() const;
uint32_t channels() const;
status_t open(int mode);
void close();
protected:
friend class AudioHardwareALSA;
AudioHardwareALSA * mParent;
alsa_handle_t * mHandle;
uint32_t mDevices;
};
// ----------------------------------------------------------------------------
class AudioStreamOutALSA : public AudioStreamOut, public ALSAStreamOps
{
public:
AudioStreamOutALSA(AudioHardwareALSA *parent, alsa_handle_t *handle);
virtual ~AudioStreamOutALSA();
virtual uint32_t sampleRate() const
{
return ALSAStreamOps::sampleRate();
}
virtual size_t bufferSize() const
{
return ALSAStreamOps::bufferSize();
}
virtual uint32_t channels() const;
virtual int format() const
{
return ALSAStreamOps::format();
}
virtual uint32_t latency() const;
virtual ssize_t write(const void *buffer, size_t bytes);
virtual status_t dump(int fd, const Vector<String16>& args);
status_t setVolume(float left, float right);
virtual status_t standby();
virtual status_t setParameters(const String8& keyValuePairs) {
return ALSAStreamOps::setParameters(keyValuePairs);
}
virtual String8 getParameters(const String8& keys) {
return ALSAStreamOps::getParameters(keys);
}
// return the number of audio frames written by the audio dsp to DAC since
// the output has exited standby
virtual status_t getRenderPosition(uint32_t *dspFrames);
status_t open(int mode);
status_t close();
private:
uint32_t mFrameCount;
protected:
AudioHardwareALSA * mParent;
};
class AudioStreamInALSA : public AudioStreamIn, public ALSAStreamOps
{
public:
AudioStreamInALSA(AudioHardwareALSA *parent,
alsa_handle_t *handle,
AudioSystem::audio_in_acoustics audio_acoustics);
virtual ~AudioStreamInALSA();
virtual uint32_t sampleRate() const
{
return ALSAStreamOps::sampleRate();
}
virtual size_t bufferSize() const
{
return ALSAStreamOps::bufferSize();
}
virtual uint32_t channels() const
{
return ALSAStreamOps::channels();
}
virtual int format() const
{
return ALSAStreamOps::format();
}
virtual ssize_t read(void* buffer, ssize_t bytes);
virtual status_t dump(int fd, const Vector<String16>& args);
virtual status_t setGain(float gain);
virtual status_t standby();
virtual status_t setParameters(const String8& keyValuePairs)
{
return ALSAStreamOps::setParameters(keyValuePairs);
}
virtual String8 getParameters(const String8& keys)
{
return ALSAStreamOps::getParameters(keys);
}
// Return the amount of input frames lost in the audio driver since the last call of this function.
// Audio driver is expected to reset the value to 0 and restart counting upon returning the current value by this function call.
// Such loss typically occurs when the user space process is blocked longer than the capacity of audio driver buffers.
// Unit: the number of input audio frames
virtual unsigned int getInputFramesLost() const;
virtual status_t addAudioEffect(effect_handle_t effect)
{
return BAD_VALUE;
}
virtual status_t removeAudioEffect(effect_handle_t effect)
{
return BAD_VALUE;
}
status_t setAcousticParams(void* params);
status_t open(int mode);
status_t close();
#ifdef QCOM_SSR_ENABLED
// Helper function to initialize the Surround Sound library.
status_t initSurroundSoundLibrary(unsigned long buffersize);
#endif
private:
void resetFramesLost();
#ifdef QCOM_CSDCLIENT_ENABLED
int start_csd_record(int);
int stop_csd_record(void);
#endif
unsigned int mFramesLost;
AudioSystem::audio_in_acoustics mAcoustics;
#ifdef QCOM_SSR_ENABLED
// Function to read coefficients from files.
status_t readCoeffsFromFile();
FILE *mFp_4ch;
FILE *mFp_6ch;
int16_t **mRealCoeffs;
int16_t **mImagCoeffs;
void *mSurroundObj;
int16_t *mSurroundInputBuffer;
int16_t *mSurroundOutputBuffer;
int mSurroundInputBufferIdx;
int mSurroundOutputBufferIdx;
#endif
protected:
AudioHardwareALSA * mParent;
};
class AudioHardwareALSA : public AudioHardwareBase
{
public:
AudioHardwareALSA();
virtual ~AudioHardwareALSA();
/**
* check to see if the audio hardware interface has been initialized.
* return status based on values defined in include/utils/Errors.h
*/
virtual status_t initCheck();
/** set the audio volume of a voice call. Range is between 0.0 and 1.0 */
virtual status_t setVoiceVolume(float volume);
/**
* set the audio volume for all audio activities other than voice call.
* Range between 0.0 and 1.0. If any value other than NO_ERROR is returned,
* the software mixer will emulate this capability.
*/
virtual status_t setMasterVolume(float volume);
#ifdef QCOM_FM_ENABLED
virtual status_t setFmVolume(float volume);
#endif
/**
* setMode is called when the audio mode changes. NORMAL mode is for
* standard audio playback, RINGTONE when a ringtone is playing, and IN_CALL
* when a call is in progress.
*/
virtual status_t setMode(int mode);
// mic mute
virtual status_t setMicMute(bool state);
virtual status_t getMicMute(bool* state);
// set/get global audio parameters
virtual status_t setParameters(const String8& keyValuePairs);
virtual String8 getParameters(const String8& keys);
// Returns audio input buffer size according to parameters passed or 0 if one of the
// parameters is not supported
virtual size_t getInputBufferSize(uint32_t sampleRate, int format, int channels);
#ifdef QCOM_TUNNEL_LPA_ENABLED
/** This method creates and opens the audio hardware output
* session for LPA */
virtual AudioStreamOut* openOutputSession(
uint32_t devices,
int *format,
status_t *status,
int sessionId,
uint32_t samplingRate=0,
uint32_t channels=0);
virtual void closeOutputSession(AudioStreamOut* out);
#endif
/** This method creates and opens the audio hardware output stream */
virtual AudioStreamOut* openOutputStream(
uint32_t devices,
int *format=0,
uint32_t *channels=0,
uint32_t *sampleRate=0,
status_t *status=0);
virtual void closeOutputStream(AudioStreamOut* out);
/** This method creates and opens the audio hardware input stream */
virtual AudioStreamIn* openInputStream(
uint32_t devices,
int *format,
uint32_t *channels,
uint32_t *sampleRate,
status_t *status,
AudioSystem::audio_in_acoustics acoustics);
virtual void closeInputStream(AudioStreamIn* in);
/**This method dumps the state of the audio hardware */
//virtual status_t dumpState(int fd, const Vector<String16>& args);
static AudioHardwareInterface* create();
int mode()
{
return mMode;
}
protected:
virtual status_t dump(int fd, const Vector<String16>& args);
virtual uint32_t getVoipMode(int format);
void doRouting(int device);
#ifdef QCOM_FM_ENABLED
void handleFm(int device);
#endif
#ifdef QCOM_USBAUDIO_ENABLED
void closeUSBPlayback();
void closeUSBRecording();
void closeUsbRecordingIfNothingActive();
void closeUsbPlaybackIfNothingActive();
void startUsbPlaybackIfNotStarted();
void startUsbRecordingIfNotStarted();
#endif
void disableVoiceCall(char* verb, char* modifier, int mode, int device);
void enableVoiceCall(char* verb, char* modifier, int mode, int device);
bool routeVoiceCall(int device, int newMode);
bool routeVoLTECall(int device, int newMode);
friend class AudioStreamOutALSA;
friend class AudioStreamInALSA;
friend class ALSAStreamOps;
alsa_device_t * mALSADevice;
ALSAHandleList mDeviceList;
#ifdef QCOM_USBAUDIO_ENABLED
AudioUsbALSA *mAudioUsbALSA;
#endif
Mutex mLock;
snd_use_case_mgr_t *mUcMgr;
uint32_t mCurDevice;
/* The flag holds all the audio related device settings from
* Settings and Qualcomm Settings applications */
uint32_t mDevSettingsFlag;
uint32_t mVoipStreamCount;
uint32_t mVoipBitRate;
uint32_t mIncallMode;
bool mMicMute;
int mCSCallActive;
int mVolteCallActive;
int mCallState;
int mIsFmActive;
bool mBluetoothVGS;
bool mFusion3Platform;
#ifdef QCOM_USBAUDIO_ENABLED
int musbPlaybackState;
int musbRecordingState;
#endif
void *mAcdbHandle;
void *mCsdHandle;
};
// ----------------------------------------------------------------------------
}; // namespace android_audio_legacy
#endif // ANDROID_AUDIO_HARDWARE_ALSA_H