Re: [alsa-devel] [PATCH] ALSA AICA sound on SEGA Dreamcast - fix behaviour in poor resource conditions

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On 06/07/07, Takashi Iwai <[email protected]> wrote:
At Thu, 5 Jul 2007 23:07:44 +0100,
Adrian McMenamin wrote:
> @@ -402,17 +396,10 @@
>  static int snd_aicapcm_pcm_trigger(struct snd_pcm_substream
>                                  *substream, int cmd)
>  {
> -     struct snd_card_aica *dreamcastcard;
>       switch (cmd) {
>       case SNDRV_PCM_TRIGGER_START:
>               spu_begin_dma(substream);
>               break;
> -     case SNDRV_PCM_TRIGGER_STOP:
> -             dreamcastcard = substream->pcm->private_data;
> -             if (dreamcastcard->timer.data)
> -                     del_timer(&dreamcastcard->timer);
> -             aica_chn_halt();
> -             break;
>       default:
>               return -EINVAL;
>       }

Is this a correct change?  Then you'd have no control for stopping the
stream.


The shutdown is all done in the close() now, partly because
snd_aicapcm_pcm_trigger cannot sleep and close() can. Is there a
pressing reason to put code in snd_aicapcm_pcm_trigger?
-
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