181     struct alsa_stream_out *out = (struct alsa_stream_out *)stream;  in xa_device_run()  local
182     struct alsa_audio_device *adev = out->dev;  in xa_device_run()
195             out->written += out_frames;  in xa_device_run()
210                 ret = pcm_mmap_write(out->pcm, p_buf, size);  in xa_device_run()
212                     out->written += out_frames;  in xa_device_run()
251 static int start_output_stream(struct alsa_stream_out *out)  in start_output_stream()  argument
253     struct alsa_audio_device *adev = out->dev;  in start_output_stream()
255     if (out->unavailable)  in start_output_stream()
261     out->write_threshold = PLAYBACK_PERIOD_COUNT * PERIOD_SIZE;  in start_output_stream()
262     out->config.start_threshold = PLAYBACK_PERIOD_START_THRESHOLD * PERIOD_SIZE;  in start_output_stream()
263     out->config.avail_min = PERIOD_SIZE;  in start_output_stream()
265 …out->pcm = pcm_open(CARD_OUT, PORT_CODEC, PCM_OUT | PCM_MMAP | PCM_NOIRQ | PCM_MONOTONIC, &out->co…  in start_output_stream()
267     if (!pcm_is_ready(out->pcm)) {  in start_output_stream()
268         ALOGE("cannot open pcm_out driver: %s", pcm_get_error(out->pcm));  in start_output_stream()
269         pcm_close(out->pcm);  in start_output_stream()
271         out->unavailable = true;  in start_output_stream()
275     adev->active_output = out;  in start_output_stream()
281     struct alsa_stream_out *out = (struct alsa_stream_out *)stream;  in out_get_sample_rate()  local
282     return out->config.rate;  in out_get_sample_rate()
305     struct alsa_stream_out *out = (struct alsa_stream_out *)stream;  in out_get_channels()  local
306     return audio_channel_out_mask_from_count(out->config.channels);  in out_get_channels()
312     struct alsa_stream_out *out = (struct alsa_stream_out *)stream;  in out_get_format()  local
313     return audio_format_from_pcm_format(out->config.format);  in out_get_format()
322 static int do_output_standby(struct alsa_stream_out *out)  in do_output_standby()  argument
324     struct alsa_audio_device *adev = out->dev;  in do_output_standby()
326     if (!out->standby) {  in do_output_standby()
327         pcm_close(out->pcm);  in do_output_standby()
328         out->pcm = NULL;  in do_output_standby()
330         out->standby = 1;  in do_output_standby()
338     struct alsa_stream_out *out = (struct alsa_stream_out *)stream;  in out_standby()  local
341     pthread_mutex_lock(&out->dev->lock);  in out_standby()
342     pthread_mutex_lock(&out->lock);  in out_standby()
344     xa_device_close(out->dev);  in out_standby()
346     status = do_output_standby(out);  in out_standby()
347     pthread_mutex_unlock(&out->lock);  in out_standby()
348     pthread_mutex_unlock(&out->dev->lock);  in out_standby()
361     struct alsa_stream_out *out = (struct alsa_stream_out *)stream;  in out_set_parameters()  local
362     struct alsa_audio_device *adev = out->dev;  in out_set_parameters()
377         pthread_mutex_lock(&out->lock);  in out_set_parameters()
382         pthread_mutex_unlock(&out->lock);  in out_set_parameters()
400     struct alsa_stream_out *out = (struct alsa_stream_out *)stream;  in out_get_latency()  local
401     return (PERIOD_SIZE * PLAYBACK_PERIOD_COUNT * 1000) / out->config.rate;  in out_get_latency()
415     struct alsa_stream_out *out = (struct alsa_stream_out *)stream;  in out_write()  local
416     struct alsa_audio_device *adev = out->dev;  in out_write()
425     pthread_mutex_lock(&out->lock);  in out_write()
426     if (out->standby) {  in out_write()
432         ret = start_output_stream(out);  in out_write()
437         out->standby = 0;  in out_write()
448         ret = pcm_mmap_write(out->pcm, buffer, out_frames * frame_size);  in out_write()
450             out->written += out_frames;  in out_write()
456     pthread_mutex_unlock(&out->lock);  in out_write()
477     struct alsa_stream_out *out = (struct alsa_stream_out *)stream;  in out_get_presentation_position()  local
480         if (out->pcm) {  in out_get_presentation_position()
482             if (pcm_get_htimestamp(out->pcm, &avail, timestamp) == 0) {  in out_get_presentation_position()
483                 size_t kernel_buffer_size = out->config.period_size * out->config.period_count;  in out_get_presentation_position()
484                 int64_t signed_frames = out->written - kernel_buffer_size + avail;  in out_get_presentation_position()
614     struct alsa_stream_out *out;  in adev_open_output_stream()  local
622     out = (struct alsa_stream_out *)calloc(1, sizeof(struct alsa_stream_out));  in adev_open_output_stream()
623     if (!out)  in adev_open_output_stream()
626     out->stream.common.get_sample_rate = out_get_sample_rate;  in adev_open_output_stream()
627     out->stream.common.set_sample_rate = out_set_sample_rate;  in adev_open_output_stream()
628     out->stream.common.get_buffer_size = out_get_buffer_size;  in adev_open_output_stream()
629     out->stream.common.get_channels = out_get_channels;  in adev_open_output_stream()
630     out->stream.common.get_format = out_get_format;  in adev_open_output_stream()
631     out->stream.common.set_format = out_set_format;  in adev_open_output_stream()
632     out->stream.common.standby = out_standby;  in adev_open_output_stream()
633     out->stream.common.dump = out_dump;  in adev_open_output_stream()
634     out->stream.common.set_parameters = out_set_parameters;  in adev_open_output_stream()
635     out->stream.common.get_parameters = out_get_parameters;  in adev_open_output_stream()
636     out->stream.common.add_audio_effect = out_add_audio_effect;  in adev_open_output_stream()
637     out->stream.common.remove_audio_effect = out_remove_audio_effect;  in adev_open_output_stream()
638     out->stream.get_latency = out_get_latency;  in adev_open_output_stream()
639     out->stream.set_volume = out_set_volume;  in adev_open_output_stream()
640     out->stream.write = out_write;  in adev_open_output_stream()
641     out->stream.get_render_position = out_get_render_position;  in adev_open_output_stream()
642     out->stream.get_next_write_timestamp = out_get_next_write_timestamp;  in adev_open_output_stream()
643     out->stream.get_presentation_position = out_get_presentation_position;  in adev_open_output_stream()
645     out->config.channels = CHANNEL_STEREO;  in adev_open_output_stream()
646     out->config.rate = CODEC_SAMPLING_RATE;  in adev_open_output_stream()
647     out->config.format = PCM_FORMAT_S16_LE;  in adev_open_output_stream()
648     out->config.period_size = PERIOD_SIZE;  in adev_open_output_stream()
649     out->config.period_count = PLAYBACK_PERIOD_COUNT;  in adev_open_output_stream()
651     if (out->config.rate != config->sample_rate ||  in adev_open_output_stream()
653                out->config.format !=  pcm_format_from_audio_format(config->format) ) {  in adev_open_output_stream()
654         config->sample_rate = out->config.rate;  in adev_open_output_stream()
655         config->format = audio_format_from_pcm_format(out->config.format);  in adev_open_output_stream()
661                 out->config.channels, out->config.rate, out->config.format);  in adev_open_output_stream()
663     out->dev = ladev;  in adev_open_output_stream()
664     out->standby = 1;  in adev_open_output_stream()
665     out->unavailable = false;  in adev_open_output_stream()
667     config->format = out_get_format(&out->stream.common);  in adev_open_output_stream()
668     config->channel_mask = out_get_channels(&out->stream.common);  in adev_open_output_stream()
669     config->sample_rate = out_get_sample_rate(&out->stream.common);  in adev_open_output_stream()
671     *stream_out = &out->stream;  in adev_open_output_stream()