void timestamp_apts_inc(s32 inc)
{
if(audio_pts_up){
#ifdef MODIFY_TIMESTAMP_INC_WITH_PLL
inc = inc*timestamp_inc_factor/PLL_FACTOR;
#endif
if(tsync_get_mode()!=TSYNC_MODE_PCRMASTER){//timestamp_enable_resample_flag){
if(timestamp_resample_type_flag==0){
//0-->no resample processing
}else if(timestamp_resample_type_flag==1){//1-->down resample processing
#ifdef CONFIG_AMAUDIO
inc += inc*resample_delta / DEFALT_NUMSAMPS_PERCH;
acc_apts_inc += inc*resample_delta % DEFALT_NUMSAMPS_PERCH;
if(acc_apts_inc*resample_delta >= DEFALT_NUMSAMPS_PERCH){
inc += acc_apts_inc*resample_delta / DEFALT_NUMSAMPS_PERCH;
acc_apts_inc = acc_apts_inc*resample_delta % DEFALT_NUMSAMPS_PERCH;
}
#endif
}else if(timestamp_resample_type_flag==2){//2-->up resample processing
#ifdef CONFIG_AMAUDIO
inc -= inc*resample_delta / DEFALT_NUMSAMPS_PERCH;
acc_apts_dec += inc*resample_delta % DEFALT_NUMSAMPS_PERCH;
if(acc_apts_dec*resample_delta >= DEFALT_NUMSAMPS_PERCH){
inc -= acc_apts_dec*resample_delta / DEFALT_NUMSAMPS_PERCH;
acc_apts_dec = acc_apts_dec*resample_delta % DEFALT_NUMSAMPS_PERCH;
}
#endif
}
}
WRITE_MPEG_REG(AUDIO_PTS, READ_MPEG_REG(AUDIO_PTS) + inc);
}
}
void timestamp_pcrscr_inc(s32 inc)
{
if (system_time_up) {
#ifdef MODIFY_TIMESTAMP_INC_WITH_PLL
inc = inc*timestamp_inc_factor/PLL_FACTOR;
#endif
if(tsync_get_mode()!=TSYNC_MODE_PCRMASTER){//timestamp_enable_resample_flag){
if(timestamp_resample_type_flag==0){ //0-->no resample processing
}else if(timestamp_resample_type_flag==1){//1-->down resample processing
#ifdef CONFIG_AMAUDIO
inc += inc*resample_delta / DEFALT_NUMSAMPS_PERCH;
acc_pcrscr_inc += inc*resample_delta % DEFALT_NUMSAMPS_PERCH;
if(acc_pcrscr_inc*resample_delta >= DEFALT_NUMSAMPS_PERCH){
inc += acc_pcrscr_inc*resample_delta / DEFALT_NUMSAMPS_PERCH;
acc_pcrscr_inc = acc_pcrscr_inc*resample_delta % DEFALT_NUMSAMPS_PERCH;
}
#endif
}else if(timestamp_resample_type_flag==2){//2-->up resample processing
#ifdef CONFIG_AMAUDIO
inc -= inc*resample_delta / DEFALT_NUMSAMPS_PERCH;
acc_pcrscr_dec += inc*resample_delta % DEFALT_NUMSAMPS_PERCH;
if(acc_pcrscr_dec*resample_delta >= DEFALT_NUMSAMPS_PERCH){
inc -= acc_pcrscr_dec*resample_delta / DEFALT_NUMSAMPS_PERCH;
acc_pcrscr_dec = acc_pcrscr_dec*resample_delta % DEFALT_NUMSAMPS_PERCH;
}
#endif
}
}
system_time += inc + system_time_inc_adj;
}
}
void am_i2s_trigger_output(void)
{
audio_stream_t *s = NULL;
if (g_prtd == NULL)
{
printk("am_i2s_trigger_output g_prtd == NULL \n");
return ;
}
s = &g_prtd->s;
if (s == NULL)
{
printk("am_i2s_trigger_output g_prtd->s== NULL \n");
return ;
}
if (s->audio_trigger_disable == 1) {
unsigned int pts_audio, pts_scr;
//unsigned int pts_audio_cur = 0;
int sync_mode;
pts_audio = tsync_get_firstapts();
pts_scr = timestamp_pcrscr_get();
sync_mode = tsync_get_mode();
// when pcr chase to apts,start audio playback
if ((sync_mode == TSYNC_MODE_PCRMASTER) && ((pts_audio <= pts_scr))) {
s->disable_count = 0;
s->audio_trigger_disable = 0;
if (s->device_type == AML_AUDIO_I2SOUT) {
printk("trigger aiu i2s playback enable audio %x pcr %x disable count %d \n", pts_audio, pts_scr,
s->disable_count);
audio_out_i2s_enable(1);
audio_hw_958_enable(1);
}
else if (s->device_type == AML_AUDIO_SPDIFOUT) {
printk("trigger aiu 958 playback enable audio %x pcr %x disable count %d\n", pts_audio, pts_scr, s->disable_count);
audio_hw_958_enable(1);
}
}
}
else
{
printk("s->audio_trigger_disable %d \n", s->audio_trigger_disable);
}
}
static int aml_i2s_trigger(struct snd_pcm_substream *substream,
int cmd)
{
struct snd_pcm_runtime *rtd = substream->runtime;
struct aml_runtime_data *prtd = rtd->private_data;
audio_stream_t *s = &prtd->s;
int ret = 0;
unsigned int pts_audio, pts_scr;
unsigned int diff = 0;
int sync_mode;
ALSA_TRACE();
switch (cmd) {
case SNDRV_PCM_TRIGGER_START:
case SNDRV_PCM_TRIGGER_RESUME:
case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
#if USE_HRTIMER == 0 && !defined(USE_HW_TIMER)
del_timer_sync(&prtd->timer);
#endif
spin_lock(&s->lock);
#if USE_HRTIMER == 0 && !defined(USE_HW_TIMER)
prtd->timer.expires = jiffies + 1;
del_timer(&prtd->timer);
add_timer(&prtd->timer);
#endif
pts_audio = tsync_get_firstapts();
pts_scr = timestamp_pcrscr_get();
sync_mode = tsync_get_mode();
#if 1
if (pts_audio > pts_scr)
diff = pts_audio - pts_scr;
else
diff = pts_scr - pts_audio;
if (IEC958_mode_codec == 0 && sync_mode == TSYNC_MODE_PCRMASTER && pts_audio > pts_scr && (pts_audio - pts_scr) < 90 * MAX_APTS_SCR_DELTA) {
printk("aiu i2s playback enable trigger mode sync_mode %d audio %x pcr %x diff %d \n", sync_mode, pts_audio, pts_scr, diff);
s->audio_trigger_disable = 1;
}
else
#endif
{
printk("aiu i2s/958 playback enable sync_mode %d audio %x pcr %x diff %d IEC958_mode_codec %d\n", sync_mode, pts_audio, pts_scr, diff, IEC958_mode_codec);
s->disable_count = 0;
s->audio_trigger_disable = 0;
if (IEC958_mode_codec == 0) {
printk("aiu i2s/958 playback enable sync_mode %d audio %x pcr %x diff %d \n", sync_mode, pts_audio, pts_scr, diff);
audio_out_i2s_enable(1);
audio_hw_958_enable(1);
}
}
s->active = 1;
spin_unlock(&s->lock);
break; /* SNDRV_PCM_TRIGGER_START */
case SNDRV_PCM_TRIGGER_SUSPEND:
case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
case SNDRV_PCM_TRIGGER_STOP:
// TODO
spin_lock(&s->lock);
s->audio_trigger_disable = 0;
s->disable_count = 0;
if (IEC958_mode_codec == 0)
{
printk("aiu i2s playback disable\n");
audio_out_i2s_enable(0);
printk("aiu 958 playback disable\n");
audio_hw_958_enable(0);
}
s->active = 0;
spin_unlock(&s->lock);
break;
default:
ret = -EINVAL;
}
/* if(clock_gating_status&clock_gating_playback){
if(substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
aml_pcm_work.substream = substream;
}
else
aml_pcm_work.substream = substream;
if (clock_gating_status)
{
schedule_work(&aml_pcm_work.aml_codec_workqueue);
}
*/
//schedule_work(&aml_pcm_work.aml_codec_workqueue);
return ret;
}