diff options
Diffstat (limited to 'sound/pci/echoaudio/echoaudio.h')
| -rw-r--r-- | sound/pci/echoaudio/echoaudio.h | 14 |
1 files changed, 9 insertions, 5 deletions
diff --git a/sound/pci/echoaudio/echoaudio.h b/sound/pci/echoaudio/echoaudio.h index be4d0489394a..30c640931f1e 100644 --- a/sound/pci/echoaudio/echoaudio.h +++ b/sound/pci/echoaudio/echoaudio.h @@ -298,7 +298,12 @@ struct audiopipe { * the current dma position * (lower 32 bits only) */ - u32 last_counter; /* The last position, which is used + u32 last_period; /* Counter position last time a + * period elapsed + */ + u32 last_counter; /* Used exclusively by pcm_pointer + * under PCM core locks. + * The last position, which is used * to compute... */ u32 position; /* ...the number of bytes tranferred @@ -332,11 +337,10 @@ struct audioformat { struct echoaudio { spinlock_t lock; struct snd_pcm_substream *substream[DSP_MAXPIPES]; - int last_period[DSP_MAXPIPES]; struct mutex mode_mutex; u16 num_digital_modes, digital_mode_list[6]; u16 num_clock_sources, clock_source_list[10]; - atomic_t opencount; + unsigned int opencount; /* protected by mode_mutex */ struct snd_kcontrol *clock_src_ctl; struct snd_pcm *analog_pcm, *digital_pcm; struct snd_card *card; @@ -353,8 +357,8 @@ struct echoaudio { struct timer_list timer; char tinuse; /* Timer in use */ char midi_full; /* MIDI output buffer is full */ - char can_set_rate; - char rate_set; + char can_set_rate; /* protected by mode_mutex */ + char rate_set; /* protected by mode_mutex */ /* This stuff is used mainly by the lowlevel code */ struct comm_page *comm_page; /* Virtual address of the memory |