From 78ee7d5717807e6ac779293d0d3c78341de6130a Mon Sep 17 00:00:00 2001
From: "Konstantin Kirik (snegovick)" <snegovick@uprojects.org>
Date: Sun, 28 Dec 2025 12:27:31 +0300
Subject: Move existing boards into subdits split per arch

---
 os/mpc/cpmtimer.c | 179 ------------------------------------------------------
 1 file changed, 179 deletions(-)
 delete mode 100644 os/mpc/cpmtimer.c

(limited to 'os/mpc/cpmtimer.c')

diff --git a/os/mpc/cpmtimer.c b/os/mpc/cpmtimer.c
deleted file mode 100644
index bda25dcf..00000000
--- a/os/mpc/cpmtimer.c
+++ /dev/null
@@ -1,179 +0,0 @@
-#include "u.h"
-#include "lib.h"
-#include "mem.h"
-#include "dat.h"
-#include "fns.h"
-#include "io.h"
-
-enum {
-	Ntimer = 4	/* maximum allowed by hardware */
-};
-
-static struct {
-	Lock;
-	int	init;
-	int	ntimer;	/* actual timers on this chip revision */
-	GTimer	t[Ntimer];
-} cpmtimers;
-
-static	uchar	timerirq[] = {0x19, 0x12, 0x0C, 0x07};
-
-static	void	gtimerinit(int, ushort*, ushort*);
-
-static void
-gtimerreset(void)
-{
-	IMM *io;
-	int i;
-
-	ilock(&cpmtimers);
-	if(!cpmtimers.init){
-		if(m->cputype == 0x50 && (getimmr() & 0xFFFF) <= 0x2001)
-			cpmtimers.ntimer = 2;
-		else
-			cpmtimers.ntimer = Ntimer;
-		io = m->iomem;
-		io->tgcr = 0x2222;	/* reset timers, low-power stop */
-		for(i=0; i<cpmtimers.ntimer; i++)
-			gtimerinit(i, &io->tmr1+i, &io->ter1+i);
-		cpmtimers.init = 1;
-	}
-	iunlock(&cpmtimers);
-}
-
-static void
-gtimerintr(Ureg *ur, void *arg)
-{
-	GTimer *t;
-
-	t = arg;
-	t->event = *t->ter;
-	*t->ter = t->event;
-	if(t->inuse && t->interrupt != nil)
-		t->interrupt(ur, t->arg, t);
-}
-
-static void
-gtimerinit(int i, ushort *tmr, ushort *ter)
-{
-	GTimer *t;
-	char name[KNAMELEN];
-
-	snprint(name, sizeof(name), "timer.%d", i);
-	t = &cpmtimers.t[i];
-	t->x = i*4;	/* field in tgcr */
-	t->inuse = 0;
-	t->interrupt = nil;
-	t->tmr = tmr;
-	t->trr = tmr+2;
-	t->tcr = tmr+4;
-	t->tcn = tmr+6;
-	t->ter = ter;
-	intrenable(VectorCPIC+timerirq[i], gtimerintr, t, BUSUNKNOWN, name);
-}
-
-GTimer*
-gtimer(ushort mode, ushort ref, void (*intr)(Ureg*,void*,GTimer*), void *arg)
-{
-	GTimer *t;
-	int i;
-
-	t = cpmtimers.t;
-	if(!cpmtimers.init)
-		gtimerreset();
-	ilock(&cpmtimers);
-	for(i=0; ; i++){
-		if(i >= cpmtimers.ntimer){
-			iunlock(&cpmtimers);
-			return nil;
-		}
-		if(t->inuse == 0)
-			break;
-		t++;
-	}
-	t->inuse = 1;
-	t->interrupt = intr;
-	t->arg = arg;
-	m->iomem->tgcr &= ~(0xF<<t->x);	/* reset */
-	*t->tmr = mode;
-	*t->tcn = 0;
-	*t->trr = ref;
-	*t->ter = 0xFFFF;
-	iunlock(&cpmtimers);
-	return t;
-}
-
-void
-gtimerset(GTimer *t, ushort mode, int usec)
-{
-	ulong ref, ps;
-	int clk;
-
-	if(usec <= 0)
-		return;
-	ref = usec*m->speed;
-	clk = mode & (3<<1);
-	if(ref >= 0x1000000 && clk == TimerSclk){
-		mode = (mode & ~clk) | TimerSclk16;
-		ref >>= 4;
-	} else if(clk == TimerSclk16)
-		ref >>= 4;
-	ps = (ref+(1<<16))/(1<<16);	/* round up */
-	ref /= ps;
-	*t->tmr = ((ps-1)<<8) | (mode&0xFF);
-	*t->trr = ref;
-}
-
-void
-gtimerstart(GTimer *t)
-{
-	if(t){
-		ilock(&cpmtimers);
-		m->iomem->tgcr = (m->iomem->tgcr & ~(0xF<<t->x)) | (1<<t->x);	/* enable */
-		iunlock(&cpmtimers);
-	}
-}
-
-void
-gtimerstop(GTimer *t)
-{
-	if(t){
-		ilock(&cpmtimers);
-		m->iomem->tgcr |= 2<<t->x;	/* stop */
-		iunlock(&cpmtimers);
-	}
-}
-
-void
-gtimerfree(GTimer *t)
-{
-	if(t){
-		ilock(&cpmtimers);
-		t->inuse = 0;
-		*t->tmr = 0;	/* disable interrupts */
-		*t->ter = 0xFFFF;
-		m->iomem->tgcr = (m->iomem->tgcr & ~(0xF<<t->x)) | (2<<t->x);	/* reset and stop */
-		iunlock(&cpmtimers);
-	}
-}
-
-#ifdef GTIMETEST
-static void
-gtintr(Ureg*, void*, GTimer*)
-{
-	m->bcsr[4] ^= DisableVideoLamp;	/* toggle an LED */
-}
-
-void
-gtimetest(void)
-{
-	GTimer *g;
-
-	g = gtimer(0, 0, gtintr, nil);
-	gtimerset(g, TimerORI|TimerRestart|TimerSclk, 64000);
-	gtimerstart(g);
-	delay(1);
-print("started timer: #%4.4ux #%4.4ux %8.8lux #%4.4ux #%4.4ux\n", *g->tmr, *g->trr, m->iomem->tgcr, *g->tcn, *g->ter);
-print("ter=#%8.8lux tmr=#%8.8lux trr=#%8.8lux\n", g->ter, g->tmr, g->trr);
-}
-#endif
-- 
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