Quelle  pcm_trace.h   Sprache: C

/* SPDX-License-Identifier: GPL-2.0 */
#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%s/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%s/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 )
  __string( reason, why )
 ),
 TP_fast_assign(
  __entry->card = (substream)->pcm->card->number;
  __entry->device = (substream)->pcm->device;
  __entry->number = (substream)->number;
  __entry->stream = (substream)->stream;
  __assign_str(reason);
 ),
 TP_printk("pcmC%dD%d%s/sub%d: ERROR: %s",
    __entry->card, __entry->device,
    __entry->stream == SNDRV_PCM_STREAM_PLAYBACK ? "p" : "c",
    __entry->number, __get_str(reason))
);

TRACE_EVENT(applptr,
 TP_PROTO(struct snd_pcm_substream *substream, snd_pcm_uframes_t prev, snd_pcm_uframes_t curr),
 TP_ARGS(substream, prev, curr),
 TP_STRUCT__entry(
  __field( unsigned int, card )
  __field( unsigned int, device )
  __field( unsigned int, number )
  __field( unsigned int, stream )
  __field( snd_pcm_uframes_t, prev )
  __field( snd_pcm_uframes_t, curr )
  __field( snd_pcm_uframes_t, avail )
  __field( snd_pcm_uframes_t, period_size )
  __field( snd_pcm_uframes_t, buffer_size )
 ),
 TP_fast_assign(
  __entry->card = (substream)->pcm->card->number;
  __entry->device = (substream)->pcm->device;
  __entry->number = (substream)->number;
  __entry->stream = (substream)->stream;
  __entry->prev = (prev);
  __entry->curr = (curr);
  __entry->avail = (substream)->stream ? snd_pcm_capture_avail(substream->runtime) : snd_pcm_playback_avail(substream->runtime);
  __entry->period_size = (substream)->runtime->period_size;
  __entry->buffer_size = (substream)->runtime->buffer_size;
 ),
 TP_printk("pcmC%dD%d%s/sub%d: prev=%lu, curr=%lu, avail=%lu, period=%lu, buf=%lu",
  __entry->card,
  __entry->device,
  __entry->stream ? "c" : "p",
  __entry->number,
  __entry->prev,
  __entry->curr,
  __entry->avail,
  __entry->period_size,
  __entry->buffer_size
 )
);

#endif /* _PCM_TRACE_H */

/* This part must be outside protection */
#undef TRACE_INCLUDE_PATH
#define TRACE_INCLUDE_PATH .
#include <trace/define_trace.h>