git: purgatorio

ref: 94443daf8e248e65afc8d3f17f26efea22748b51
dir: /os/js/cs4231.h/

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#define IN(x)		inb(csdev.port+(x))
#define OUT(x,v)	outb(csdev.port+(x),(v))

void
cs4231install(void)
{
	KMap *k;
	static int installed=0;

	if(installed)
		return;

	k = kmappa(AUDIO_PHYS_PAGE, PTEIO|PTENOCACHE);

	csdev.port = VA(k)+AUDIO_INDEX_OFFSET;
	dmasize(Wdma, 8);
	dmasize(Rdma, 8);

	installed=1;
}