Move existing boards into subdits split per arch

1 files changed, 0 insertions, 1063 deletions

diff --git a/os/pc/devmpeg.c b/os/pc/devmpeg.c
deleted file mode 100644
index 038cfa6c..00000000
--- a/os/pc/devmpeg.c
+++ /dev/null
@@ -1,1063 +0,0 @@
-/*
- *  Boffin MPEG decoder
- */
-#include	"u.h"
-#include	"../port/lib.h"
-#include	"mem.h"
-#include	"dat.h"
-#include	"fns.h"
-#include	"../port/error.h"
-#include	"zoran.h"
-#include	"crystal.h"
-#include	"io.h"
-
-enum
-{
-
-	CPUACCCTRL      = 0x20,	/* Trident Window Chip control registers */
-	CPUACCMD        = 0x21,
-	BNKADR          = 0x22,
-	SYSCONFIG       = 0x23,
-	VGACOMP         = 0x24,
-	VGAMASK         = 0x25,
-	VIDCOMPL        = 0x26,
-	VIDCOMPH        = 0x27,
-	MOS             = 0x28,
-	DISPCTRL        = 0x29,
-	CAPCTRL         = 0x2a,
-	OVLKT           = 0x2b,
-	OVLWINHSTRT     = 0x2c,
-	OVLWINVSTRT     = 0x2d,
-	OVLWINHEND      = 0x2e,
-	OVLWINVEND      = 0x2f,
-	RESERVED1       = 0x30,
-	RESERVED2       = 0x31,
-	DISPWINVSTRT1   = 0x32,
-	DISPWINVSTRT2   = 0x33,
-	DISPWINVEND     = 0x34,
-	DISPWINHSTRT1   = 0x35,
-	DISPWINHSTRT2   = 0x36,
-	DISPWINHEND     = 0x37,
-	CAPWINVSTRT     = 0x38,
-	CAPWINHSTRT     = 0x39,
-	CAPWINVMF       = 0x3a,
-	CAPWINHMF       = 0x3b,
-	RESERVED3       = 0x3c,
-	CAPMASK         = 0x3d,
-	BNKPOLATION     = 0x3e,
-	SYNCPOL         = 0x3f,
-	DISPVTOTAL      = 0x40,
-	DISPHTOTAL      = 0x41,
-	DISPVSTRT       = 0x42,
-	DISPVEND        = 0x43,
-	DISPHSTRT       = 0x44,
-	DISPHEND        = 0x45,
-	DISPSYNCW       = 0x46,
-	DISPCRTCCTRL    = 0x47,
-	CAPVTOTAL       = 0x48,
-	CAPHTOTAL       = 0x49,
-	CAPVSTRT        = 0x4a,
-	CAPVEND         = 0x4b,
-	CAPHSTRT        = 0x4c,
-	CAPHEND         = 0x4d,
-	CAPSYNCW        = 0x4e,
-	CAPCRTCCTRL     = 0x4f,
-	VIDLUTDACRW     = 0x50,
-	VIDLUTDACRW0    = (VIDLUTDACRW),
-	VIDLUTDACRW1    = (VIDLUTDACRW+1),
-	VIDLUTDACRW2    = (VIDLUTDACRW+2),
-	VIDLUTDACRW3    = (VIDLUTDACRW+3),
-	VIDLUTDACRW4    = (VIDLUTDACRW+4),
-	VIDLUTDACRW5    = (VIDLUTDACRW+5),
-	VIDLUTDACRW6    = (VIDLUTDACRW+6),
-	VIDLUTDACRW7    = (VIDLUTDACRW+7),
-	VGALUTDACRW     = 0x58,
-	VGALUTDACRW0    = (VGALUTDACRW),
-	VGALUTDACRW1    = (VGALUTDACRW+1),
-	VGALUTDACRW2    = (VGALUTDACRW+2),
-	VGALUTDACRW3    = (VGALUTDACRW+3),
-	VGALUTDACRW4    = (VGALUTDACRW+4),
-	VGALUTDACRW5    = (VGALUTDACRW+5),
-	VGALUTDACRW6    = (VGALUTDACRW+6),
-	VGALUTDACRW7    = (VGALUTDACRW+7),
-	HZOOMF          = 0x60,
-	VZOOMF          = 0x61,
-	DELAY1          = 0x62,
-	DELAY2          = 0x63,
-
-	TRILO      	= 0,
-	TRIHI     	= 1,
-	TRIINDEX    	= 2,
-
-	SCL             = 0x02,
-	SDA             = 0x01,
-	I2CR		= 0x2B,
-	SAA7110		= 0x9c,
-	WRITE_C		= 0x00,
-	I2DLY		= 5,
-};
-
-enum
-{
-	ZR36100		= 0x1e0,
-	ZRIRQ		= 15,
-	ZRDMA		= 6,
-
-	ZRIDREG		= 4,				/* offset */
-	ZRMACH210   	= 6,				/* offset */
-	ZRREG0      	= 8,				/* offset */
-	ZRREG1		= 10,				/* offset */
-	ZRSR		= ZRREG1,			/* offset */
-	ZRRDY		= (1<<3),
-	ZRIDLE		= (1<<2),
-	ZRREG2		= 12,				/* offset */
-	ZRREG3		= 14,				/* offset */
-
-	SIFwidth	= 320,
-	SIFheight	= 240,
-
-	IDPCOUNT	= 3064,
-	PMDPCOUNT	= 2048,
-	SVMDPCOUNT	= 2048,
-
-	HIWAT		= 2*128*1024,
-	DMABLK		= 16384,
-};
-
-static struct {
-	int	zrport;
-	int	irq;
-	int	dma;
-	int	trport;
-} mpegconf;
-
-static	char Evmode[] = "video format not supported";
-static	char Eaudio[] = "invalid audio layer";
-static	char Earate[] = "bad audio sample rate";
-
-/* Status bits depend on board revision */
-static	short	STDBY;
-static	short	VIDSEL;
-static	short	VSNIRQn;
-static	short	INTENAn;
-static	short	DSPBOOT;
-static	short	DSPRST;
-static	short	MPGRST;
-static	int	machsr;
-static	int	dopen;
-static	int	started;
-static	int	stop;
-static	int	pause;
-static	int	sp2br;
-static	int	sp2cd;
-static	char	properties[] = "video mpeg1,sif\naudio musicam,I musicam,II\n";
-static	void	inittrident(void);
-static	int	initzoran(void);
-static	void	initcrystal(void);
-static	void	mpegintr(Ureg*, void*);
-static	void	setwindow(int, char**);
-static	void	freebufs(void);
-static	int	mkbuf(char*, int);
-
-typedef struct Buf Buf;
-struct Buf
-{
-	int	nchar;
-	uchar*	ptr;
-	Buf*	link;
-	uchar	data[1];
-};
-
-static struct
-{
-	Lock;
-	int	qlen;
-	Buf*	head;
-	Buf*	tail;
-	Rendez	flow;
-} bqueue;
-
-static int
-zrstatus(void)
-{
-	return ins(mpegconf.zrport+ZRSR) & 0xf;
-}
-
-static int
-zrwaitrdy(int timo, char *msg)
-{
-	int i;
-
-	for(i = 0; i < timo; i++)
-		if(ins(mpegconf.zrport+ZRSR) & ZRRDY)
-			return 0;
-
-	print("devmpeg: device not ready %s\n", msg);
-	return 1;
-}
-
-static void
-zrdma(Buf *b)
-{
-	int n;
-
-	n = dmasetup(mpegconf.dma, b->ptr, b->nchar, 0);
-	b->ptr += n;
-	b->nchar -= n;
-	bqueue.qlen -= n;
-}
-
-static void
-triwr(int reg, int val)
-{
-	outb(mpegconf.trport+TRIINDEX, reg);
-	outb(mpegconf.trport+TRILO, val);
-	outb(mpegconf.trport+TRIHI, val>>8);
-}
-
-static int
-trird(int reg)
-{
-	int v;
-
-	outb(mpegconf.trport+TRIINDEX, reg);
-	v = inb(mpegconf.trport+TRILO);
-	v |= inb(mpegconf.trport+TRIHI)<<8;
-
-	return v;
-}
-
-enum
-{
-	Qdir,
-	Qdata,
-	Qctl,
-};
-static Dirtab mpegtab[]=
-{
-	"mpeg",		{Qdata, 0},	0,	0666,
-	"mpegctl",	{Qctl,  0},	0,	0666,
-};
-
-static void
-mpegreset(void)
-{
-	ISAConf isa;
-
-	mpegconf.zrport = ZR36100;
-	mpegconf.irq = ZRIRQ;
-	mpegconf.dma = ZRDMA;
-
-	memset(&isa, 0, sizeof(isa));
-	if(isaconfig("mpeg", 0, &isa) == 0)
-		return;	
-	if(isa.port)
-		mpegconf.zrport = isa.port;
-	if(isa.irq)
-		mpegconf.irq = isa.irq;
-	if(isa.dma)
-		mpegconf.dma = isa.dma;
-	dmainit(mpegconf.dma, 64*1024);
-	print("mpeg0: port 0x%uX, irq %d, dma %d\n",
-		mpegconf.zrport, mpegconf.irq, mpegconf.dma);
-	mpegconf.trport = mpegconf.zrport+0x100;
-	intrenable(VectorPIC+mpegconf.irq, mpegintr, 0, BUSUNKNOWN);
-}
-
-static void
-mpeginit(void)
-{
-	if(mpegconf.trport == 0)
-		return;
-
-	inittrident();
-	setwindow(0, 0);
-}
-
-static Chan*
-mpegattach(char *spec)
-{
-	if(mpegconf.trport == 0)
-		error(Enodev);
-
-	return devattach('E', spec);
-}
-
-static int
-mpegwalk(Chan *c, char *name)
-{
-	return devwalk(c, name, mpegtab, nelem(mpegtab), devgen);
-}
-
-static void
-mpegstat(Chan *c, char *db)
-{
-	devstat(c, db, mpegtab, nelem(mpegtab), devgen);
-}
-
-static Chan*
-mpegopen(Chan *c, int omode)
-{
-	switch(c->qid.path) {
-	default:
-		break;
-	case Qdata:
-		if(dopen)
-			error(Einuse);
-		dopen = 1;
-		break;
-	}
-	return devopen(c, omode, mpegtab, nelem(mpegtab), devgen);
-}
-
-static void
-mpegclose(Chan *c)
-{
-	int i;
-
-	switch(c->qid.path) {
-	default:
-		break;
-	case Qdata:
-		if((c->flag & COPEN) == 0)
-			break;
-		if(started) {
-			for(i = 0; i < 50; i++) {
-				if(ins(mpegconf.zrport+ZRSR) & ZRIDLE)
-					break;
-				tsleep(&up->sleep, return0, 0, 100);
-			}
-		}
-		if(stop != 0)
-			outs(mpegconf.zrport+ZRREG1, 0x1000);
-		microdelay(15);
-		outs(mpegconf.zrport+ZRREG1, 0x8000);
-		freebufs();
-		dopen = 0;
-	}
-}
-
-static long
-mpegread(Chan *c, void *a, long n, ulong off)
-{
-	switch(c->qid.path & ~CHDIR){
-	default:
-		error(Eperm);
-	case Qdir:
-		return devdirread(c, a, n, mpegtab, nelem(mpegtab), devgen);
-	case Qctl:
-		return readstr(off, a, n, properties);
-	}
-	return 0;
-}
-
-#define SCALE(a, b)	((((a)<<10)/(b))-1024)
-enum
-{
-	CWINVF = 0x3ff,
-	CWINHF = 0x1da,
-};
-
-static void
-setwindow(int nf, char **field)
-{
-	int minx, miny, maxx, maxy, width, height;
-
-	if(field == 0) {
-		minx = 0;
-		miny = 0;
-		maxx = 0;
-		maxy = 0;
-	}
-	else {
-		if(nf != 5)
-			error(Ebadarg);
-
-		minx = strtoul(field[1], 0, 0);
-		miny = strtoul(field[2], 0, 0);
-		maxx = strtoul(field[3], 0, 0) + 8;
-		maxy = strtoul(field[4], 0, 0);
-	}
-
-	triwr(OVLWINHSTRT, minx);
-	triwr(OVLWINVSTRT, miny);
-	triwr(OVLWINHEND, maxx+12);
-	triwr(OVLWINVEND, maxy);
-
-	width = maxx - minx;
-	height = maxy - miny;
-	if(width >= SIFwidth) {
-		triwr(HZOOMF, SCALE(width, SIFwidth));
-		triwr(CAPWINHMF, CWINHF);
-	}
-	else {
-		triwr(HZOOMF, SCALE(SIFwidth, SIFwidth));
-		triwr(CAPWINHMF, width*CWINHF/SIFwidth);
-	}
-	if(height >= SIFheight) {
-		triwr(VZOOMF, SCALE(height, SIFheight));
-		triwr(CAPWINVMF, CWINVF);
-	}
-	else {
-		triwr(VZOOMF, SCALE(SIFheight, SIFheight));
-		triwr(CAPWINVMF, height*CWINVF/SIFheight);
-	}
-}
-
-static int
-mpegflow(void*)
-{
-	return bqueue.qlen < HIWAT || stop;
-}
-
-static int
-mkbuf(char *d, int n)
-{
-	Buf *b;
-
-	b = malloc(sizeof(Buf)+n);
-	if(b == 0)
-		return 0;
-
-	memmove(b->data, d, n);
-	b->ptr = b->data;
-	b->nchar = n;
-	b->link = 0;
-
-	ilock(&bqueue);
-	bqueue.qlen += n;
-	if(bqueue.head)
-		bqueue.tail->link = b;
-	else
-		bqueue.head = b;
-	bqueue.tail = b;
-	iunlock(&bqueue);
-
-	return 1;
-}
-
-static void
-freebufs(void)
-{
-	Buf *next;
-
-	ilock(&bqueue);
-	bqueue.qlen = 0;
-	while(bqueue.head) {
-		next = bqueue.head->link;
-		free(bqueue.head);
-		bqueue.head = next;
-	}
-	iunlock(&bqueue);
-}
-
-typedef struct Audio Audio;
-struct Audio {
-	int rate;
-	int cd;
-	int br;
-};
-
-static Audio AudioclkI[] = 
-{
-	 64000, 0x000000bb, 0x00071797,
-	 96000, 0x0000007d, 0x00071c71,
-	128000, 0x0000005d, 0x00070de1,
-	160000, 0x0000004b, 0x00071c71,
-	192000, 0x0000003e, 0x00070de1,
-	224000, 0x00000035, 0x00070906,
-	256000, 0x0000002e, 0x0006fa76,
-	288000, 0x00000029, 0x0006ff51,
-	320000, 0x00000025, 0x0007042b,
-	352000, 0x00000022, 0x00071797,
-	384000, 0x0000001f, 0x00070de1,
-	416000, 0x0000001c, 0x0006e70b,
-	448000, 0x0000001a, 0x0006e70b,
-};
-
-static Audio  AudioclkII[] = 
-{
-	 48000, 0x000000fa, 0x00071c71,
-	 56000, 0x000000d6, 0x00071a04,
-	 64000, 0x000000bb, 0x00071797,
-	 80000, 0x00000096, 0x00071c71,
-	 96000, 0x0000007d, 0x00071c71,
-	112000, 0x0000006b, 0x00071a04,
-	128000, 0x0000005d, 0x00070de1,
-	160000, 0x0000004b, 0x00071c71,
-	192000, 0x0000003e, 0x00070de1,
-	224000, 0x00000035, 0x00070906,
-	256000, 0x0000002e, 0x0006fa76,
-	320000, 0x00000025, 0x0007042b,
-	384000, 0x0000001f, 0x00070de1,
-};
-
-static long
-mpegwrite(Chan *c, char *a, long n, vlong)
-{
-	Audio *t;
-	int i, nf, l, x;
-	char buf[128], *field[10];
-
-	switch(c->qid.path & ~CHDIR) {
-	case Qctl:
-		if(n > sizeof(buf)-1)
-			n = sizeof(buf)-1;
-		memmove(buf, a, n);
-		buf[n] = '\0';
-
-		nf = getfields(buf, field, nelem(field), 1, " \t\n");
-		if(nf < 1)
-			error(Ebadarg);
-
-		if(strcmp(field[0], "stop") == 0) {
-			if(started == 0)
-				error("not started");
-			if(pause) {
-				pause = 0;
-				outs(mpegconf.zrport+ZRREG1, 0x9000);
-			}
-			stop = 1;
-			outs(mpegconf.zrport+ZRREG1, 0x1000);
-			microdelay(15);
-			outs(mpegconf.zrport+ZRREG1, 0x8000);
-			wakeup(&bqueue.flow);
-			return n;
-		}
-		if(strcmp(field[0], "pause") == 0) {
-			if(started == 0)
-				error("not started");
-			if(pause == 0) {
-				pause = 1;
-				outs(mpegconf.zrport+ZRREG1, 0x1000);
-			}
-			else {
-				pause = 0;
-				outs(mpegconf.zrport+ZRREG1, 0x9000);
-			}
-			return n;
-		}
-		if(strcmp(field[0], "window") == 0) {
-			setwindow(nf, field);
-			return n;
-		}
-		if(strcmp(field[0], "audio") == 0) {
-			if(nf < 3)
-				error(Ebadarg);
-			t = 0;
-			if(strcmp(field[1], "musicam,I") == 0)
-				t = AudioclkI;
-			else
-			if(strcmp(field[1], "musicam,II") == 0)
-				t = AudioclkII;
-			else
-				error(Eaudio);
-			x = strtoul(field[2], 0, 0);
-			for(i = 0; t[i].rate != 0; i++) {
-				if(t[i].rate == x) {
-					sp2cd = t[i].cd;
-					sp2br = t[i].br;
-					return n;
-				}
-			}
-			error(Earate);
-		}
-		if(strcmp(field[0], "video") == 0) {
-			if(nf != 3)
-				error(Ebadarg);
-			if(strcmp(field[1], "iso11172") != 0)
-				error(Evmode);
-			if(strcmp(field[2], "mpeg1,sif") != 0)
-				error(Evmode);
-			return n;
-		}
-		if(strcmp(field[0], "init") == 0) {
-			inittrident();
-			for(i = 0; i < 3; i++)
-				if(initzoran() != -1)
-					break;
-			initcrystal();
-			started = 0;
-			stop = 0;
-			pause = 0;
-			return n;
-		}
-		error(Ebadarg);
-	case Qdata:
-		if(n & 1)
-			error("odd write");
-
-		while(!mpegflow(0))
-			sleep(&bqueue.flow, mpegflow, 0);
-		
-		if(stop)
-			error("stopped");
-
-		x = n;
-		while(x) {
-			l = x;
-			if(l > DMABLK)
-				l = DMABLK;
-			if(mkbuf(a, l) == 0)
-				error(Enomem);
-			x -= l;
-			a += l;
-		}
-		if(started || bqueue.qlen < (HIWAT*3)/4)
-			break;
-
-		zrdma(bqueue.head);
-		outs(mpegconf.zrport+ZRREG1, 0x0000);
-		outs(mpegconf.zrport+ZRREG1, 0x0000);
-		started = 1;
-		break;
-	default:
-		error(Ebadusefd);
-	}
-	return n;
-}
-
-Dev mpegdevtab = {
-	'E',
-	"mpeg",
-
-	mpegreset,
-	mpeginit,
-	mpegattach,
-	devdetach,
-	devclone,
-	mpegwalk,
-	mpegstat,
-	mpegopen,
-	devcreate,
-	mpegclose,
-	mpegread,
-	devbread,
-	mpegwrite,
-	devbwrite,
-	devremove,
-	devwstat,
-};
-
-static void
-initctl(void)
-{
-	int boardid;
-	static int done;
-
-	if(done)
-		return;
-
-	boardid = ins(mpegconf.zrport+ZRIDREG);
-	if(boardid == 0xE3E3) {		/* REV c/d */
-		STDBY   = 0x0000;
-		VIDSEL  = 0x2020;
-		VSNIRQn = 0x1010;
-		INTENAn = 0x0808;
-		DSPBOOT = 0x0404;
-		DSPRST  = 0x0202;
-		MPGRST  = 0x0101;
-	}
-	else {				/* REV b */
-		STDBY   = 0x0404;
-		VIDSEL  = 0x1010;
-		VSNIRQn = 0x8080;
-		INTENAn = 0x4040;
-		DSPBOOT = 0x0202;
-		DSPRST  = 0x0101;
-		MPGRST  = 0x2020;
-	}
-	done = 1;
-
-}
-
-/*
- * nbl (reg 0x1[ab]) was 0x0022, nblf (reg 1[cd]) was 0x0006
- */
-static uchar
-zrparam[] = 
-{
-/* 00 */  0xEF, 0x01, 0x01, 0x01, 0x80, 0x0E, 0x31, 0x00,
-/* 08 */  0x01, 0x60, 0x00, 0x00, 0x03, 0x5A, 0x00, 0x7A,
-/* 10 */  0x00, 0x10, 0x00, 0x08, 0x00, 0xF0, 0x00, 0x00,
-/* 18 */  0x02, 0x0D, 0x00, 0x1e, 0x00, 0x0a, 0x00, 0x02, 
-/* 20 */  0x40, 0x06, 0x80, 0x00, 0x80, 0x00, 0x05, 0x9B, 
-/* 28 */  0x07, 0x16, 0xFD, 0x25, 0xFE, 0xA0, 0x00, 0x00,
-/* 30 */  0x00, 0x07, 0x0d, 0xe1, 0x00, 0x00, 0x00, 0x3E,
-/* 38 */  0x00, 0x00, 0x09, 0x51, 0x00, 0x00, 0xCD, 0xFE,
-/* 40 */  0x60, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 
-/* 48 */  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
-/* 50 */  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
-/* 58 */  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
-/* 60 */  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
-/* 68 */  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
-/* 70 */  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
-/* 78 */  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00
-};
-
-static int
-initzoran(void)
-{
-	int i, nbytes, zrs;
-
-	initctl();
-	freebufs();
-
-	machsr = DSPRST|VSNIRQn;
-	outs(mpegconf.zrport+ZRMACH210, machsr);
-	microdelay(4000);
-
-	machsr |= STDBY;
-	outs(mpegconf.zrport+ZRMACH210, machsr);
-	microdelay(4000);
-
-	machsr |= MPGRST;
-	outs(mpegconf.zrport+ZRMACH210, machsr);
-	microdelay(4000);
-	machsr &= ~MPGRST;
-	outs(mpegconf.zrport+ZRMACH210, machsr);
-	microdelay(4000);
-	machsr |= MPGRST;
-	outs(mpegconf.zrport+ZRMACH210, machsr);
-	microdelay(4000);
-
-	if(zrwaitrdy(2000, "load IDP"))
-		return -1;
-
-	for(i = 0; i < IDPCOUNT; i++)
-		outb(mpegconf.zrport+ZRREG2, zrmpeg1[i]);
-
-	if(((zrs = zrstatus()) & 3) != 3) {
-/*		print("devmpeg: error loading IDP sr=%2.2ux\n", zrs);	*/
-		USED(zrs);
-		return -1;
-	}
-
-	if(zrwaitrdy(2000, "load PMDP"))
-		return -1;
-
-	for(i = 0; i < PMDPCOUNT; i++)
-		outb(mpegconf.zrport+ZRREG3, zrmpeg2[i]);
-
-	if(((zrs = zrstatus()) & 3) != 3) {
-/*		print("devmpeg: error loading PMDP sr=%2.2ux\n", zrs);	*/
-		USED(zrs);
-		return -1;
-	}
-
-	zrparam[0x36] = sp2cd>>8;
-	zrparam[0x37] = sp2cd>>0;
-	zrparam[0x31] = sp2br>>16;
-	zrparam[0x32] = sp2br>>8;
-	zrparam[0x33] = sp2br>>0;
-
-	nbytes = 16;
-	for(i = 0; i < 128; i++) {
-		if(nbytes >= 16) {
-			if(zrwaitrdy(2000, "load parameters"))
-				return -1;
-			nbytes = 0;
-		}
-		outb(mpegconf.zrport+ZRREG0, zrparam[i]);
-		nbytes++;
-	}
-
-	if(zrwaitrdy(2000, "load SVMDP"))
-		return -1;
-
-	for(i = 0; i < SVMDPCOUNT; i++)
-		outb(mpegconf.zrport+ZRREG3, zrmpeg3s[i]);
-
-	if(((zrs = zrstatus()) & 3) != 3) {
-/*		print("devmpeg: error loading SVMDP sr=%2.2ux\n", zrs);	*/
-		USED(zrs);
-		return -1;
-	}
-	return 0;
-}
-
-static struct
-{
-	short	reg;
-	ushort	val;
-} trireg[] =
-{
-	0x20, 0x0400,
-	0x21, 0x00e9,
-	0x22, 0x0000,
-	0x23, 0x07ee,
-	0x24, 0x0005,
-	0x25, 0xff00,
-	0x26, 0x0000,
-	0x27, 0x7fff,
-	0x28, 0x0004,
-	0x29, 0x88a0,
-	0x2a, 0x0011,
-	0x2b, 0x8540,
-	0x2c, 0x00c4,
-	0x2d, 0x00ac,
-	0x2e, 0x020f,
-	0x2f, 0x019d,
-	0x30, 0x00bd,
-	0x31, 0x00ff,
-	0x32, 0x0000,
-	0x33, 0x0000,
-	0x34, 0x03ff,
-	0x35, 0x0000,
-	0x36, 0x0000,
-	0x37, 0x03ff,
-	0x38, 0x0000,
-	0x39, 0x0000,
-	0x3a, 0x03ff,
-	0x3b, 0x01da,
-	0x3c, 0xe8ce,
-	0x3d, 0x2ac0,
-	0x3e, 0x891f,
-	0x3f, 0x3e25,
-	0x40, 0x03ff,
-	0x41, 0x01ff,
-	0x42, 0x001f,
-	0x43, 0x01ff,
-	0x44, 0x003b,
-	0x45, 0x0186,
-	0x46, 0x1d06,
-	0x47, 0x1a4f,
-	0x48, 0x020d,
-	0x49, 0x01ad,
-	0x4a, 0x001b,
-	0x4b, 0x01fd,
-	0x4c, 0x003a,
-	0x4d, 0x034b,
-	0x4e, 0x2006,
-	0x4f, 0x0083,
-	0x50, 0xef08,
-	0x51, 0xef3a,
-	0x52, 0xefff,
-	0x53, 0xef08,
-	0x54, 0xef08,
-	0x55, 0xef15,
-	0x56, 0xefc0,
-	0x57, 0xef08,
-	0x58, 0xefef,
-	0x59, 0xefef,
-	0x5a, 0xefef,
-	0x5b, 0xefef,
-	0x5c, 0xefef,
-	0x5d, 0xefef,
-	0x5e, 0xefef,
-	0x5f, 0xefef,
-	0x60, 0x0000,
-	0x61, 0x0004,
-	0x62, 0x0020,
-	0x63, 0x8080,
-	0x64, 0x0300,
-	-1
-};
-
-static void
-clrI2C(uchar b)
-{
-	uchar t;
-
-	outb(mpegconf.trport+TRIINDEX, I2CR);
-	t = inb(mpegconf.trport+TRIHI);
-	t &= ~b;
-	outb(mpegconf.trport+TRIHI, t);
-}
-
-static void
-setI2C(uchar b)
-{
-	uchar t;
-
-	outb(mpegconf.trport+TRIINDEX, I2CR);
-	t = inb(mpegconf.trport+TRIHI);
-	t |= b;
-	outb(mpegconf.trport+TRIHI, t);
-}
-
-static void
-startI2C(void)
-{
-	setI2C(SDA);
-	setI2C(SCL);
-	microdelay(I2DLY);
-	clrI2C(SDA);
-	microdelay(I2DLY);
-	clrI2C(SCL);
-	microdelay(I2DLY);
-}
-
-static void
-endI2C(void)
-{
-	clrI2C(SDA);
-	clrI2C(SCL);
-	microdelay(I2DLY);
-	setI2C(SCL);
-	microdelay(I2DLY);
-	setI2C(SDA);
-	microdelay(I2DLY);
-}
-
-static void
-wrI2Cbit(uchar b)
-{
-	clrI2C(SDA);
-	clrI2C(SCL);
-	microdelay(I2DLY);
-	if(b & 1) {
-		setI2C(SDA);
-		microdelay(I2DLY);
-		setI2C(SCL);
-		microdelay(I2DLY);
-		clrI2C(SCL);
-		microdelay(I2DLY);
-		clrI2C(SDA);
-		microdelay(I2DLY);
-	}
-	else {
-		setI2C(SCL);
-		microdelay(I2DLY);
-		clrI2C(SCL);
-		microdelay(I2DLY);
-	}
-}
-
-static void
-wrI2CB(unsigned char data)
-{
-	int i;
-
-	for(i = 0; i < 8; i++)
-		wrI2Cbit(data >>(7-i));
-}
-
-static int
-rdI2CBit(void)
-{
-	int bit = 1;
-
-	setI2C(SDA);
-	clrI2C(SCL);
-	setI2C(SCL);
-	outb(mpegconf.trport+TRIINDEX, I2CR);
-	if(inb(mpegconf.trport+TRIHI) & SDA)
-		bit = 0;
-	clrI2C(SDA);
-	clrI2C(SCL);
-
-	return bit;
-}
-
-static int
-wrI2CD(uchar data)
-{
-	int r;
-	ulong s;
-
-	s = splhi();
-	wrI2CB(data);
-	r = rdI2CBit();
-	splx(s);
-	return r;
-}
-
-static uchar
-setupSAA7110[] =
-{
-	/* Digital */
-	0x4c, 0x3c, 0x0d, 0xef, 0xbd, 0xf0, 0x40, 0x03, 
-	0xf8, 0xf8, 0x90, 0x90, 0x00, 0x02, 0x10, 0x77,
-	0x00, 0x2c, 0x40, 0x40, 0x3b, 0x10, 0xfc, 0xd2,
-	0xf0, 0x80,
-
-	/* Analog */
-	0xd9, 0x16, 0x40, 0x40, 0x80, 0x40, 0x80, 0x4f,
-	0xfe, 0x01, 0xcf, 0x0f, 0x03, 0x01, 0x81, 0x0a,
-	0x40, 0x35, 0x02, 0x8c, 0x03
-};
-
-static void
-addrI2CB(int addr, int val)
-{
-	ulong s;
-
-	s = splhi();
-	startI2C();
-	wrI2CD(SAA7110|WRITE_C);
-	wrI2CD(addr);
-	wrI2CD(val);
-	endI2C();
-	splx(s);
-}
-
-static void
-inittrident(void)
-{
-	int i;
-
-	for(i = 0; trireg[i].reg != -1; i++)
-		triwr(trireg[i].reg, trireg[i].val);
-
-	for(i = 0; i < 47; i++)
-		addrI2CB(i, setupSAA7110[i]); 
-}
-
-static void
-initcrystal(void)
-{
-	int i;
-	static int done;
-
-	if(done)
-		return;
-
-	done = 1;
-
-	initctl();
-
-	/* Reboot the Musicam decoder */
-	clrI2C(SCL);
-	clrI2C(SDA);
-	machsr |= DSPRST;
-	outs(mpegconf.zrport+ZRMACH210, machsr);
-	machsr |= DSPBOOT;
-	outs(mpegconf.zrport+ZRMACH210, machsr);
-	machsr &= ~DSPRST;
-	outs(mpegconf.zrport+ZRMACH210, machsr);
-	machsr |= DSPRST;
-	outs(mpegconf.zrport+ZRMACH210, machsr);
-	machsr &= ~DSPBOOT;
-	outs(mpegconf.zrport+ZRMACH210, machsr);
-
-	startI2C();
-	wrI2CD(0);
-	for(i = 0; i < sizeof(crystal); i++ ) 
-		wrI2CD(crystal[i]);
-	endI2C();
-}
-
-static void
-mpegintr(Ureg*, void*)
-{
-	Buf *b;
-
-	b = bqueue.head;
-	if(b == 0 || dmadone(mpegconf.dma) == 0)
-		return;
-
-	dmaend(mpegconf.dma);
-	if(b->nchar == 0) {
-		bqueue.head = b->link;
-		free(b);
-
-		b = bqueue.head;
-		if(b == 0) {
-			started = 0;
-			return;
-		}
-	}
-	zrdma(b);
-	wakeup(&bqueue.flow);
-}