Move existing boards into subdits split per arch

1 files changed, 0 insertions, 289 deletions

diff --git a/os/mpc/dsp.c b/os/mpc/dsp.c
deleted file mode 100644
index ffe906e9..00000000
--- a/os/mpc/dsp.c
+++ /dev/null
@@ -1,289 +0,0 @@
-/*
- * DSP support functions
- */
-
-#include	"u.h"
-#include	"../port/lib.h"
-#include	"mem.h"
-#include	"dat.h"
-#include	"fns.h"
-#include	"../port/error.h"
-
-#include	"io.h"
-
-#include	"dsp.h"
-
-enum {
-	Ndsp = 2,		/* determined by hardware */
-
-	NHOLES=	64
-};
-
-typedef struct DSPparam DSPparam;
-struct DSPparam {
-	ulong	fdbase;	/* function descriptor table physical base address */
-	ulong	fd_ptr;	/* function descriptor pointer */
-	ulong	dstate;	/* DSP state */
-	ulong	resvd[2];
-	ushort	dstatus;	/* current function descriptor status */
-	ushort	i;	/* number of iterations */
-	ushort	tap;	/* number of TAPs */
-	ushort	cbase;
-	ushort	anon1;	/* sample buffer size-1 */
-	ushort	xptr;	/* pointer to sample */
-	ushort	anon2;	/* output buffer size-1 */
-	ushort	yptr;	/* pointer to output */
-	ushort	m;	/* sample buffer size-1 */
-	ushort	anon3;	/* sample buffer pointer */
-	ushort	n;	/* output buffer size -1 */
-	ushort	anon4;	/* output buffer pointer */
-	ushort	k;	/* coefficient buffer size - 1 */
-	ushort	anon5;	/* coefficient buffer pointer */
-};
-
-struct DSP {
-	Lock;	/* protects state */
-	void	(*done)(void*);
-	void*	arg;
-	DSPparam*	par;
-	CPMdev*	cpm;
-
-	QLock;	/* protects busyr */
-	int	busy;
-	Rendez	busyr;
-};
-
-static	DSP	dsps[Ndsp];
-static	Lock	dsplock;
-static	int	dspinit;
-static struct {
-	QLock;
-	ulong	avail;
-	Rendez	wantr;
-} dspalloc;
-
-static	Map	fndmapv[NHOLES];
-static	RMap	fndmap = {"DSP function descriptors"};
-
-static void
-dspinterrupt(Ureg*, void*)
-{
-	int i;
-	ushort events;
-	DSP *dsp;
-
-	events = m->iomem->sdsr;
-	m->iomem->sdsr = events;
-	if(events & (1<<7))
-		panic("dsp: SDMA channel bus error sdar=#%lux", m->iomem->sdar);
-	for(i=0; i<Ndsp; i++)
-		if(events & (1<<i)){
-			dsp = &dsps[i];
-			if(dsp->busy){
-				dsp->busy = 0;
-				if(dsp->done)
-					dsp->done(dsp->arg);
-				else
-					wakeup(&dsp->busyr);
-			}else
-				print("dsp%d: empty interrupt\n", i);
-		}
-}
-
-/*
- * called by system initialisation to set up the DSPs
- */
-void
-dspinitialise(void)
-{
-	CPMdev *d;
-
-	ilock(&dsplock);
-	if(dspinit == 0){
-		mapinit(&fndmap, fndmapv, sizeof(fndmapv));
-		d = cpmdev(CPdsp1);
-		dsps[0].cpm = d;
-		dsps[0].par = d->param;
-		d = cpmdev(CPdsp2);
-		dsps[1].cpm = d;
-		dsps[1].par = d->param;
-		intrenable(VectorCPIC+d->irq, dspinterrupt, nil, BUSUNKNOWN, "dsp");
-		dspalloc.avail = (1<<Ndsp)-1;
-		dspinit = 1;
-	}
-	iunlock(&dsplock);
-}
-
-static int
-dspavail(void*)
-{
-	return dspalloc.avail != 0;
-}
-
-/*
- * wait for a DSP to become available, and return a reference to it.
- * if done is not nil, it will be called (with the given arg) when that
- * DSP completes each function (if set to interrupt).
- */
-DSP*
-dspacquire(void (*done)(void*), void *arg)
-{
-	DSP *dsp;
-	int i;
-
-	if(dspinit == 0)
-		dspinitialise();
-	qlock(&dspalloc);
-	if(waserror()){
-		qunlock(&dspalloc);
-		nexterror();
-	}
-	for(i=0;; i++){
-		if(i >= Ndsp){
-			sleep(&dspalloc.wantr, dspavail, nil);
-			i = 0;
-		}
-		if(dspalloc.avail & (1<<i))
-			break;
-	}
-	dsp = &dsps[i];
-	if(dsp->busy)
-		panic("dspacquire");
-	dsp->done = done;
-	dsp->arg = arg;
-	poperror();
-	qunlock(&dspalloc);
-	return dsp;
-}
-
-/*
- * relinquish access to the given DSP
- */
-void
-dsprelease(DSP *dsp)
-{
-	ulong bit;
-
-	if(dsp == nil)
-		return;
-	bit = 1 << (dsp-dsps);
-	if(dspalloc.avail & bit)
-		panic("dsprelease");
-	dspalloc.avail |= bit;
-	wakeup(&dspalloc.wantr);
-}
-
-/*
- * execute f[0] to f[n-1] on the given DSP
- */
-void
-dspexec(DSP *dsp, FnD *f, ulong n)
-{
-	dspsetfn(dsp, f, n);
-	dspstart(dsp);
-}
-
-/*
- * set the DSP to execute f[0] to f[n-1]
- */
-void
-dspsetfn(DSP *dsp, FnD *f, ulong n)
-{
-	f[n-1].status |= FnWrap;
-	ilock(dsp);
-	dsp->par->fdbase = PADDR(f);
-	iunlock(dsp);
-	cpmop(dsp->cpm, InitDSP, 0);
-}
-
-/*
- * start execution of the preset function(s)
- */
-void
-dspstart(DSP *dsp)
-{
-	ilock(dsp);
-	dsp->busy = 1;
-	iunlock(dsp);
-	cpmop(dsp->cpm, StartDSP, 0);
-}
-
-static int
-dspdone(void *a)
-{
-	return ((DSP*)a)->busy;
-}
-
-/*
- * wait until the DSP has completed execution
- */
-void
-dspsleep(DSP *dsp)
-{
-	sleep(&dsp->busyr, dspdone, dsp);
-}
-
-/*
- * allocate n function descriptors
- */
-FnD*
-fndalloc(ulong n)
-{
-	ulong a, nb, pgn;
-	FnD *f;
-
-	if(n == 0)
-		return nil;
-	if(dspinit == 0)
-		dspinitialise();
-	nb = n*sizeof(FnD);
-	while((a = rmapalloc(&fndmap, 0, nb, sizeof(FnD))) != 0){
-		/* expected to loop just once, but might lose a race with another dsp user */
-		pgn = (nb+BY2PG-1)&~(BY2PG-1);
-		a = PADDR(xspanalloc(pgn, sizeof(FnD), 0));
-		if(a == 0)
-			return nil;
-		mapfree(&fndmap, a, pgn);
-	}
-	f = KADDR(a);
-	f[n-1].status = FnWrap;
-	return f;
-}
-
-/*
- * free n function descriptors
- */
-void
-fndfree(FnD *f, ulong n)
-{
-	if(f != nil)
-		mapfree(&fndmap, PADDR(f), n*sizeof(FnD));
-}
-
-/*
- * allocate an IO buffer region in shared memory for use by the DSP
- */
-void*
-dspmalloc(ulong n)
-{
-	ulong i;
-
-	n = (n+3)&~4;
-	i = n;
-	if(n & (n-1)){
-		/* align on a power of two */
-		for(i=1; i < n; i <<= 1)
-			;
-	}
-	return cpmalloc(n, i);	/* this seems to be what 16.3.3.2 is trying to say */
-}
-
-/*
- * free DSP buffer memory
- */
-void
-dspfree(void *p, ulong n)
-{
-	if(p != nil)
-		cpmfree(p, (n+3)&~4);
-}