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/*
* This file is subject to the terms of the GFX License. If a copy of
* the license was not distributed with this file, you can obtain one at:
*
* http://ugfx.org/license.html
*/
/**
* @file src/gaudio/gaudio.c
* @brief GAUDIO sub-system code.
*
* @addtogroup GAUDIO
* @{
*/
#include "gfx.h"
#if GFX_USE_GAUDIO
#if GAUDIO_NEED_PLAY
#include "src/gaudio/driver_play.h"
static gfxQueueASync playList;
static gfxSem playComplete;
static uint16_t playFlags;
#define PLAYFLG_USEEVENTS 0x0001
#define PLAYFLG_PLAYING 0x0002
#define PLAYFLG_ISINIT 0x0004
#if GFX_USE_GEVENT
static GTimer playTimer;
static void PlayTimerCallback(void *param);
#endif
#endif
#if GAUDIO_NEED_RECORD
#include "src/gaudio/driver_record.h"
static gfxQueueGSync recordList;
static uint16_t recordFlags;
#define RECORDFLG_USEEVENTS 0x0001
#define RECORDFLG_RECORDING 0x0002
#define RECORDFLG_STALLED 0x0004
#define RECORDFLG_ISINIT 0x0008
#if GFX_USE_GEVENT
static GTimer recordTimer;
static void RecordTimerCallback(void *param);
#endif
#endif
void _gaudioInit(void)
{
#if GAUDIO_NEED_PLAY
gfxQueueASyncInit(&playList);
#if GFX_USE_GEVENT
gtimerInit(&playTimer);
#endif
gfxSemInit(&playComplete, 0, 0);
#endif
#if GAUDIO_NEED_RECORD
gfxQueueGSyncInit(&recordList);
#if GFX_USE_GEVENT
gtimerInit(&recordTimer);
#endif
#endif
}
void _gaudioDeinit(void)
{
#if GAUDIO_NEED_PLAY
gfxQueueASyncDeinit(&playList);
#if GFX_USE_GEVENT
gtimerDeinit(&playTimer);
#endif
gfxSemDestroy(&playComplete);
#endif
#if GAUDIO_NEED_RECORD
gfxQueueGSyncDeinit(&recordList);
#if GFX_USE_GEVENT
gtimerDeinit(&recordTimer);
#endif
#endif
}
#if GAUDIO_NEED_PLAY
bool_t gaudioPlayInit(uint16_t channel, uint32_t frequency, ArrayDataFormat format) {
gaudioPlayStop();
playFlags &= ~PLAYFLG_ISINIT;
if (!gaudio_play_lld_init(channel, frequency, format))
return FALSE;
playFlags |= PLAYFLG_ISINIT;
return TRUE;
}
void gaudioPlay(GDataBuffer *pd) {
if (!(playFlags & PLAYFLG_ISINIT)) {
// Oops - init failed - return it directly to the free-list
if (pd) {
gfxBufferRelease(pd);
gfxYield(); // Make sure we get no endless cpu hogging loops
}
return;
}
if (pd)
gfxQueueASyncPut(&playList, (gfxQueueASyncItem *)pd);
playFlags |= PLAYFLG_PLAYING;
gaudio_play_lld_start();
}
void gaudioPlayPause(void) {
if ((playFlags & (PLAYFLG_ISINIT|PLAYFLG_PLAYING)) == (PLAYFLG_ISINIT|PLAYFLG_PLAYING))
gaudio_play_lld_stop();
}
void gaudioPlayStop(void) {
GDataBuffer *pd;
if (playFlags & PLAYFLG_PLAYING)
gaudio_play_lld_stop();
while((pd = (GDataBuffer *)gfxQueueASyncGet(&playList)))
gfxBufferRelease(pd);
}
bool_t gaudioPlaySetVolume(uint8_t vol) {
return gaudio_play_lld_set_volume(vol);
}
bool_t gaudioPlayWait(delaytime_t ms) {
if (!(playFlags & PLAYFLG_PLAYING))
return TRUE;
return gfxSemWait(&playComplete, ms);
}
#if GFX_USE_GEVENT
static void PlayTimerCallback(void *param) {
(void) param;
GSourceListener *psl;
GEventAudioPlay *pe;
psl = 0;
while ((psl = geventGetSourceListener((GSourceHandle)&playTimer, psl))) {
if (!(pe = (GEventAudioPlay *)geventGetEventBuffer(psl))) {
// This listener is missing - save this.
psl->srcflags |= GAUDIO_PLAY_LOSTEVENT;
continue;
}
pe->type = GEVENT_AUDIO_PLAY;
pe->flags = psl->srcflags;
psl->srcflags = 0;
if ((playFlags & PLAYFLG_PLAYING))
pe->flags |= GAUDIO_PLAY_PLAYING;
if (gfxBufferIsAvailable())
pe->flags |= GAUDIO_PLAY_FREEBLOCK;
geventSendEvent(psl);
}
}
GSourceHandle gaudioPlayGetSource(void) {
if (!gtimerIsActive(&playTimer))
gtimerStart(&playTimer, PlayTimerCallback, 0, TRUE, TIME_INFINITE);
playFlags |= PLAYFLG_USEEVENTS;
return (GSourceHandle)&playTimer;
}
#endif
/**
* Routines provided for use by drivers.
*/
GDataBuffer *gaudioPlayGetDataBlockI(void) {
return (GDataBuffer *)gfxQueueASyncGetI(&playList);
}
void gaudioPlayReleaseDataBlockI(GDataBuffer *pd) {
gfxBufferReleaseI(pd);
#if GFX_USE_GEVENT
if (playFlags & PLAYFLG_USEEVENTS)
gtimerJabI(&playTimer);
#endif
}
void gaudioPlayDoneI(void) {
playFlags &= ~PLAYFLG_PLAYING;
#if GFX_USE_GEVENT
if (playFlags & PLAYFLG_USEEVENTS)
gtimerJabI(&playTimer);
#endif
gfxSemSignalI(&playComplete); // This should really be gfxSemSignalAllI(&playComplete);
}
#endif
#if GAUDIO_NEED_RECORD
bool_t gaudioRecordInit(uint16_t channel, uint32_t frequency, ArrayDataFormat format) {
gaudioRecordStop();
recordFlags &= ~RECORDFLG_ISINIT;
if (!gaudio_record_lld_init(channel, frequency, format))
return FALSE;
recordFlags |= RECORDFLG_ISINIT;
return TRUE;
}
void gaudioRecordStart(void) {
if (!(recordFlags & RECORDFLG_ISINIT))
return; // Oops - init failed
recordFlags |= RECORDFLG_RECORDING;
recordFlags &= ~RECORDFLG_STALLED;
gaudio_record_lld_start();
}
void gaudioRecordStop(void) {
GDataBuffer *pd;
if ((recordFlags & (RECORDFLG_RECORDING|RECORDFLG_STALLED)) == RECORDFLG_RECORDING)
gaudio_record_lld_stop();
recordFlags &= ~(RECORDFLG_RECORDING|RECORDFLG_STALLED);
while((pd = (GDataBuffer *)gfxQueueGSyncGet(&recordList, TIME_IMMEDIATE)))
gfxBufferRelease(pd);
}
GDataBuffer *gaudioRecordGetData(delaytime_t ms) {
return (GDataBuffer *)gfxQueueGSyncGet(&recordList, ms);
}
#if GFX_USE_GEVENT
static void RecordTimerCallback(void *param) {
(void) param;
GSourceListener *psl;
GEventAudioRecord *pe;
psl = 0;
while ((psl = geventGetSourceListener((GSourceHandle)&recordTimer, psl))) {
if (!(pe = (GEventAudioRecord *)geventGetEventBuffer(psl))) {
// This listener is missing - save this.
psl->srcflags |= GAUDIO_RECORD_LOSTEVENT;
continue;
}
pe->type = GEVENT_AUDIO_RECORD;
pe->flags = psl->srcflags;
psl->srcflags = 0;
if ((recordFlags & RECORDFLG_RECORDING))
pe->flags |= GAUDIO_RECORD_RECORDING;
if ((recordFlags & RECORDFLG_STALLED))
pe->flags |= GAUDIO_RECORD_STALL;
if (!gfxQueueGSyncIsEmpty(&recordList))
pe->flags |= GAUDIO_RECORD_GOTBUFFER;
geventSendEvent(psl);
}
}
GSourceHandle gaudioRecordGetSource(void) {
if (!gtimerIsActive(&recordTimer))
gtimerStart(&recordTimer, RecordTimerCallback, 0, TRUE, TIME_INFINITE);
recordFlags |= RECORDFLG_USEEVENTS;
return (GSourceHandle)&recordTimer;
}
#endif
/**
* Routines provided for use by drivers.
*/
void gaudioRecordSaveDataBlockI(GDataBuffer *paud) {
gfxQueueGSyncPutI(&recordList, (gfxQueueGSyncItem *)paud);
#if GFX_USE_GEVENT
if (recordFlags & RECORDFLG_USEEVENTS)
gtimerJabI(&recordTimer);
#endif
}
void gaudioRecordDoneI(void) {
recordFlags |= RECORDFLG_STALLED;
#if GFX_USE_GEVENT
if (recordFlags & RECORDFLG_USEEVENTS)
gtimerJabI(&recordTimer);
#endif
}
#endif
#endif /* GFX_USE_GAUDIO */
/** @} */
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