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| author | Thomas Gleixner <tglx@linutronix.de> | 2023-06-26 11:05:49 +0200 |
|---|---|---|
| committer | Thomas Gleixner <tglx@linutronix.de> | 2023-06-26 11:05:49 +0200 |
| commit | f121ab7f4ac32ed2aa51035534926f9507a8308b (patch) | |
| tree | d17cd6dc29b64e6d681caa70424f3beacce21f14 /tools/include/uapi/sound/asound.h | |
| parent | genirq: Use a maple tree for interrupt descriptor management (diff) | |
| parent | Merge branch irq/misc-6.5 into irq/irqchip-next (diff) | |
| download | linux-f121ab7f4ac32ed2aa51035534926f9507a8308b.tar.xz linux-f121ab7f4ac32ed2aa51035534926f9507a8308b.zip | |
Merge tag 'irqchip-6.5' of git://git.kernel.org/pub/scm/linux/kernel/git/maz/arm-platforms into irq/core
Pull irqchip updates from Marc Zyngier:
- A number of Loogson/Loogarch fixes
- Allow the core code to retrigger an interrupt that has
fired while the same interrupt is being handled on another
CPU, papering over a GICv3 architecture issue
- Work around an integration problem on ASR8601, where the CPU
numbering isn't representable in the GIC implementation...
- Add some missing interrupt to the STM32 irqchip
- A bunch of warning squashing triggered by W=1 builds
Link: https://lore.kernel.org/r/20230623224345.3577134-1-maz@kernel.org
Diffstat (limited to 'tools/include/uapi/sound/asound.h')
| -rw-r--r-- | tools/include/uapi/sound/asound.h | 14 |
1 files changed, 10 insertions, 4 deletions
diff --git a/tools/include/uapi/sound/asound.h b/tools/include/uapi/sound/asound.h index de6810e94abe..0aa955aa8246 100644 --- a/tools/include/uapi/sound/asound.h +++ b/tools/include/uapi/sound/asound.h @@ -429,9 +429,14 @@ struct snd_pcm_sw_params { snd_pcm_uframes_t avail_min; /* min avail frames for wakeup */ snd_pcm_uframes_t xfer_align; /* obsolete: xfer size need to be a multiple */ snd_pcm_uframes_t start_threshold; /* min hw_avail frames for automatic start */ - snd_pcm_uframes_t stop_threshold; /* min avail frames for automatic stop */ - snd_pcm_uframes_t silence_threshold; /* min distance from noise for silence filling */ - snd_pcm_uframes_t silence_size; /* silence block size */ + /* + * The following two thresholds alleviate playback buffer underruns; when + * hw_avail drops below the threshold, the respective action is triggered: + */ + snd_pcm_uframes_t stop_threshold; /* - stop playback */ + snd_pcm_uframes_t silence_threshold; /* - pre-fill buffer with silence */ + snd_pcm_uframes_t silence_size; /* max size of silence pre-fill; when >= boundary, + * fill played area with silence immediately */ snd_pcm_uframes_t boundary; /* pointers wrap point */ unsigned int proto; /* protocol version */ unsigned int tstamp_type; /* timestamp type (req. proto >= 2.0.12) */ @@ -570,7 +575,8 @@ struct __snd_pcm_mmap_status64 { struct __snd_pcm_mmap_control64 { __pad_before_uframe __pad1; snd_pcm_uframes_t appl_ptr; /* RW: appl ptr (0...boundary-1) */ - __pad_before_uframe __pad2; + __pad_before_uframe __pad2; // This should be __pad_after_uframe, but binary + // backwards compatibility constraints prevent a fix. __pad_before_uframe __pad3; snd_pcm_uframes_t avail_min; /* RW: min available frames for wakeup */ |