2 files changed, 13 insertions(+), 1 deletions(-)

M bitsy/devuda1341.c
M bitsy/sa1110dma.c

@@ 19,6 19,8 @@
 #include	"io.h"
 #include	"sa1110dma.h"
 
+static int debug = 1;
+
 /*
  * GPIO based L3 bus support.
  *


@@ 375,6 377,7 @@ bufinit(IOstate *b)
 {
 	int i;
 
+	if (debug) print("#A: bufinit\n");
 	for (i = 0; i < Nbuf; i++)
 		b->buf[i].virt = xalloc(Bufsize);
 	b->bufinit = 1;


@@ 385,6 388,7 @@ setempty(IOstate *b)
 {
 	int i;
 
+	if (debug) print("#A: setempty\n");
 	for (i = 0; i < Nbuf; i++) {
 		b->buf[i].nbytes = 0;
 	}


@@ 492,12 496,13 @@ audioenable(void)
 	data[1] = 0xe0 | 0<<2 | 3;	/* agc time constant and output level */
 	L3_write(UDA1341_L3Addr<<2 | UDA1341_DATA0, data, 2 );
 
-	print("audio enabled\n");
+	if (debug) print("#A: audio enabled\n");
 }
 
 static void
 sendaudio(IOstate *b) {
 	/* call this with lock held */
+	if (debug) print("#A: sendaudio\n");
 	while (b->next != b->filling) {
 		assert(b->next->nbytes);
 		if (dmastart(b->dma, b->next->virt, b->next->nbytes) == 0)


@@ 594,6 599,7 @@ audioopen(Chan *c, int omode)
 		}
 		qunlock(&audio);
 //		mxvolume();
+		if (debug) print("#A: open done\n");
 		break;
 	}
 	c = devopen(c, omode, audiodir, nelem(audiodir), devgen);


@@ 820,6 826,7 @@ audiowrite(Chan *c, void *vp, long n, vlong)
 		break;
 
 	case Qaudio:
+		if (debug) print("#A: write %ld\n", n);
 		if((audio.amode & Awrite) == 0)
 			error(Emode);
 		a = &audio.o;

@@ 7,6 7,8 @@
 #include	"../port/error.h"
 #include	"sa1110dma.h"
 
+static int debug = 1;
+
 /*
  *	DMA helper routines
  */


@@ 78,6 80,7 @@ int
 dmaalloc(int rd, int bigendian, int burstsize, int datumsize, int device, ulong port, void (*intr)(void*, ulong), void *param) {
 	int i;
 
+	if (debug) print("dma: dmaalloc\n");
 	lock(&dma);
 	for (i = 0; i < NDMA; i++) {
 		if (dma.chan[i].inuse)


@@ 114,6 117,7 @@ ulong
 dmastart(int chan, void *addr, int count) {
 	ulong status;
 
+	if (debug) print("dma: dmastart\n");
 	if (((status = dmaregs[chan].dcsr_rd) & ((1<<DONEA)|(1<<DONEB))) == 0)
 		return 0;
 


@@ 174,6 178,7 @@ dmaintr(Ureg*, void *x)
 	struct dmaregs *regs = x;
 	ulong dcsr;
 
+	if (debug) print("dma: interrupt\n");
 	i = regs - dmaregs;
 	if ((dcsr = regs->dcsr_rd) & (1<<DONEA | 1<<DONEB | 1<<ERROR)) {
 		wakeup(&dma.chan[i].r);