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	Fix resume of dmix, dsnoop and dshare plugins
Fix the resume of dmix, dsnoop and dshare plugins. [This replaces the timer mode with TREAD mode, and may trigger Oops with the older kernel...]
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					 4 changed files with 47 additions and 14 deletions
				
			
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			@ -421,7 +421,7 @@ int snd_pcm_direct_poll_revents(snd_pcm_t *pcm, struct pollfd *pfds, unsigned in
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	unsigned short events;
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	/* rbuf might be overwriten by multiple plugins */
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	/* we don't need the value */
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	static snd_timer_read_t rbuf[5];
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	static snd_timer_tread_t rbuf;
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	assert(pfds && nfds == 1 && revents);
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	events = pfds[0].revents;
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			@ -440,6 +440,14 @@ int snd_pcm_direct_poll_revents(snd_pcm_t *pcm, struct pollfd *pfds, unsigned in
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		if (empty)
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			events &= ~(POLLOUT|POLLIN);
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	}
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	switch (snd_pcm_state(dmix->spcm)) {
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	case SND_PCM_STATE_XRUN:
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	case SND_PCM_STATE_SUSPENDED:
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		events |= POLLERR;
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		break;
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	default:
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		break;
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	}
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	*revents = events;
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	return 0;
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}
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			@ -840,7 +848,7 @@ int snd_pcm_direct_initialize_poll_fd(snd_pcm_direct_t *dmix)
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				snd_pcm_info_get_card(info),
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				snd_pcm_info_get_device(info),
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				snd_pcm_info_get_subdevice(info) * 2 + capture);
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	ret = snd_timer_open(&dmix->timer, name, SND_TIMER_OPEN_NONBLOCK);
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	ret = snd_timer_open(&dmix->timer, name, SND_TIMER_OPEN_NONBLOCK | SND_TIMER_OPEN_TREAD);
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	if (ret < 0) {
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		SNDERR("unable to open timer '%s'", name);
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		return ret;
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			@ -848,6 +856,7 @@ int snd_pcm_direct_initialize_poll_fd(snd_pcm_direct_t *dmix)
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	snd_timer_params_set_auto_start(params, 1);
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	snd_timer_params_set_early_event(params, 1);
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	snd_timer_params_set_ticks(params, 1);
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	snd_timer_params_set_filter(params, (1<<SND_TIMER_EVENT_TICK)|(1<<SND_TIMER_EVENT_MPAUSE));
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	ret = snd_timer_params(dmix->timer, params);
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	if (ret < 0) {
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		SNDERR("unable to set timer parameters", name);
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