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| author | Libin Yang <libin.yang@intel.com> | 2015-05-12 03:43:20 +0200 |
|---|---|---|
| committer | Takashi Iwai <tiwai@suse.de> | 2015-05-18 10:06:20 +0200 |
| commit | 598dfb56b016615f5f49848b58a1ce151acd3bd3 (patch) | |
| tree | 4c272033e253aa5c71a5732e74e82d248828dccf /sound/hda | |
| parent | ALSA: hda/hdmi - Add Tegra210 support (diff) | |
| download | linux-598dfb56b016615f5f49848b58a1ce151acd3bd3.tar.xz linux-598dfb56b016615f5f49848b58a1ce151acd3bd3.zip | |
ALSA: hda - add hdac stream trace
Add the trace of snd_hdac_stream_start and snd_hdac_stream_stop.
Signed-off-by: Libin Yang <libin.yang@intel.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Diffstat (limited to 'sound/hda')
| -rw-r--r-- | sound/hda/hdac_stream.c | 5 | ||||
| -rw-r--r-- | sound/hda/trace.h | 27 |
2 files changed, 32 insertions, 0 deletions
diff --git a/sound/hda/hdac_stream.c b/sound/hda/hdac_stream.c index 1ba0462ef7ca..52a894fe478f 100644 --- a/sound/hda/hdac_stream.c +++ b/sound/hda/hdac_stream.c @@ -10,6 +10,7 @@ #include <sound/pcm.h> #include <sound/hdaudio.h> #include <sound/hda_register.h> +#include "trace.h" /** * snd_hdac_stream_init - initialize each stream (aka device) @@ -48,6 +49,8 @@ void snd_hdac_stream_start(struct hdac_stream *azx_dev, bool fresh_start) { struct hdac_bus *bus = azx_dev->bus; + trace_snd_hdac_stream_start(bus, azx_dev); + azx_dev->start_wallclk = snd_hdac_chip_readl(bus, WALLCLK); if (!fresh_start) azx_dev->start_wallclk -= azx_dev->period_wallclk; @@ -82,6 +85,8 @@ EXPORT_SYMBOL_GPL(snd_hdac_stream_clear); */ void snd_hdac_stream_stop(struct hdac_stream *azx_dev) { + trace_snd_hdac_stream_stop(azx_dev->bus, azx_dev); + snd_hdac_stream_clear(azx_dev); /* disable SIE */ snd_hdac_chip_updatel(azx_dev->bus, INTCTL, 1 << azx_dev->index, 0); diff --git a/sound/hda/trace.h b/sound/hda/trace.h index 33a7eb5573d4..e27e2c0b7b17 100644 --- a/sound/hda/trace.h +++ b/sound/hda/trace.h @@ -50,6 +50,33 @@ TRACE_EVENT(hda_unsol_event, ), TP_printk("%s", __get_str(msg)) ); + +DECLARE_EVENT_CLASS(hdac_stream, + TP_PROTO(struct hdac_bus *bus, struct hdac_stream *azx_dev), + + TP_ARGS(bus, azx_dev), + + TP_STRUCT__entry( + __field(unsigned char, stream_tag) + ), + + TP_fast_assign( + __entry->stream_tag = (azx_dev)->stream_tag; + ), + + TP_printk("stream_tag: %d", __entry->stream_tag) +); + +DEFINE_EVENT(hdac_stream, snd_hdac_stream_start, + TP_PROTO(struct hdac_bus *bus, struct hdac_stream *azx_dev), + TP_ARGS(bus, azx_dev) +); + +DEFINE_EVENT(hdac_stream, snd_hdac_stream_stop, + TP_PROTO(struct hdac_bus *bus, struct hdac_stream *azx_dev), + TP_ARGS(bus, azx_dev) +); + #endif /* __HDAC_TRACE_H */ /* This part must be outside protection */ |