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sound/core/pcm_trace.h 3.69 KB
f5914908a   Takashi Iwai   ALSA: pcm: Replac...
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  #undef TRACE_SYSTEM
  #define TRACE_SYSTEM snd_pcm
  #define TRACE_INCLUDE_FILE pcm_trace
  
  #if !defined(_PCM_TRACE_H) || defined(TRACE_HEADER_MULTI_READ)
  #define _PCM_TRACE_H
  
  #include <linux/tracepoint.h>
  
  TRACE_EVENT(hwptr,
  	TP_PROTO(struct snd_pcm_substream *substream, snd_pcm_uframes_t pos, bool irq),
  	TP_ARGS(substream, pos, irq),
  	TP_STRUCT__entry(
  		__field( bool, in_interrupt )
  		__field( unsigned int, card )
  		__field( unsigned int, device )
  		__field( unsigned int, number )
  		__field( unsigned int, stream )
  		__field( snd_pcm_uframes_t, pos )
  		__field( snd_pcm_uframes_t, period_size )
  		__field( snd_pcm_uframes_t, buffer_size )
  		__field( snd_pcm_uframes_t, old_hw_ptr )
  		__field( snd_pcm_uframes_t, hw_ptr_base )
  	),
  	TP_fast_assign(
  		__entry->in_interrupt = (irq);
  		__entry->card = (substream)->pcm->card->number;
  		__entry->device = (substream)->pcm->device;
  		__entry->number = (substream)->number;
  		__entry->stream = (substream)->stream;
  		__entry->pos = (pos);
  		__entry->period_size = (substream)->runtime->period_size;
  		__entry->buffer_size = (substream)->runtime->buffer_size;
  		__entry->old_hw_ptr = (substream)->runtime->status->hw_ptr;
  		__entry->hw_ptr_base = (substream)->runtime->hw_ptr_base;
  	),
  	TP_printk("pcmC%dD%d%c/sub%d: %s: pos=%lu, old=%lu, base=%lu, period=%lu, buf=%lu",
  		  __entry->card, __entry->device,
  		  __entry->stream == SNDRV_PCM_STREAM_PLAYBACK ? 'p' : 'c',
  		  __entry->number,
  		  __entry->in_interrupt ? "IRQ" : "POS",
  		  (unsigned long)__entry->pos,
  		  (unsigned long)__entry->old_hw_ptr,
  		  (unsigned long)__entry->hw_ptr_base,
  		  (unsigned long)__entry->period_size,
  		  (unsigned long)__entry->buffer_size)
  );
  
  TRACE_EVENT(xrun,
  	TP_PROTO(struct snd_pcm_substream *substream),
  	TP_ARGS(substream),
  	TP_STRUCT__entry(
  		__field( unsigned int, card )
  		__field( unsigned int, device )
  		__field( unsigned int, number )
  		__field( unsigned int, stream )
  		__field( snd_pcm_uframes_t, period_size )
  		__field( snd_pcm_uframes_t, buffer_size )
  		__field( snd_pcm_uframes_t, old_hw_ptr )
  		__field( snd_pcm_uframes_t, hw_ptr_base )
  	),
  	TP_fast_assign(
  		__entry->card = (substream)->pcm->card->number;
  		__entry->device = (substream)->pcm->device;
  		__entry->number = (substream)->number;
  		__entry->stream = (substream)->stream;
  		__entry->period_size = (substream)->runtime->period_size;
  		__entry->buffer_size = (substream)->runtime->buffer_size;
  		__entry->old_hw_ptr = (substream)->runtime->status->hw_ptr;
  		__entry->hw_ptr_base = (substream)->runtime->hw_ptr_base;
  	),
  	TP_printk("pcmC%dD%d%c/sub%d: XRUN: old=%lu, base=%lu, period=%lu, buf=%lu",
  		  __entry->card, __entry->device,
  		  __entry->stream == SNDRV_PCM_STREAM_PLAYBACK ? 'p' : 'c',
  		  __entry->number,
  		  (unsigned long)__entry->old_hw_ptr,
  		  (unsigned long)__entry->hw_ptr_base,
  		  (unsigned long)__entry->period_size,
  		  (unsigned long)__entry->buffer_size)
  );
  
  TRACE_EVENT(hw_ptr_error,
  	TP_PROTO(struct snd_pcm_substream *substream, const char *why),
  	TP_ARGS(substream, why),
  	TP_STRUCT__entry(
  		__field( unsigned int, card )
  		__field( unsigned int, device )
  		__field( unsigned int, number )
  		__field( unsigned int, stream )
  		__field( const char *, reason )
  	),
  	TP_fast_assign(
  		__entry->card = (substream)->pcm->card->number;
  		__entry->device = (substream)->pcm->device;
  		__entry->number = (substream)->number;
  		__entry->stream = (substream)->stream;
  		__entry->reason = (why);
  	),
  	TP_printk("pcmC%dD%d%c/sub%d: ERROR: %s",
  		  __entry->card, __entry->device,
  		  __entry->stream == SNDRV_PCM_STREAM_PLAYBACK ? 'p' : 'c',
  		  __entry->number, __entry->reason)
  );
  
  #endif /* _PCM_TRACE_H */
  
  /* This part must be outside protection */
  #undef TRACE_INCLUDE_PATH
  #define TRACE_INCLUDE_PATH .
  #include <trace/define_trace.h>