Cards with revision < 10 (qemu rev is 0), have no ad1848 chip and

don't attach the ad1848 driver. But the "malloc" method of gus_hw_if
is ad1848_malloc() which assumes a ad1848 is attached (and expect the
softc pointer to be a struct ad1848_softc, but get a gus_softc pointer
instead). Implement, the missing gus_{malloc,free,mappage,...}
routines. Add the missing mtx_{enter,leave} calls, as we're at it.
Found by mlarkin.

ok mlarkin

1 files changed, 39 insertions, 12 deletions

diff --git a/sys/dev/isa/gus.c b/sys/dev/isa/gus.c
index cc16c8ca3b1..70881f89edc 100644
--- a/sys/dev/isa/gus.c
+++ b/sys/dev/isa/gus.c
@@ -1,4 +1,4 @@
-/*	$OpenBSD: gus.c,v 1.42 2015/05/11 06:46:21 ratchov Exp $	*/
+/*	$OpenBSD: gus.c,v 1.43 2015/06/25 20:05:11 ratchov Exp $	*/
 /*	$NetBSD: gus.c,v 1.51 1998/01/25 23:48:06 mycroft Exp $	*/
 
 /*-
@@ -287,10 +287,10 @@ struct audio_hw_if gus_hw_if = {
 	gus_mixer_set_port,
 	gus_mixer_get_port,
 	gus_mixer_query_devinfo,
-	ad1848_malloc,
-	ad1848_free,
-	ad1848_round,
-	ad1848_mappage,
+	gus_malloc,
+	gus_free,
+	gus_round,
+	gus_mappage,
 	gus_get_props,
 
 	NULL,
@@ -510,11 +510,9 @@ gus_dma_output(void *addr, void *buf, int size, void (*intr)(void *), void *arg)
 	int flags;
 
 	DMAPRINTF(("gus_dma_output %d @ %p\n", size, buf));
-	mtx_enter(&audio_lock);
 	if (size != sc->sc_blocksize) {
 	    DPRINTF(("gus_dma_output reqsize %d not sc_blocksize %d\n",
 		     size, sc->sc_blocksize));
-	    mtx_leave(&audio_lock);
 	    return EINVAL;
 	}
 
@@ -538,7 +536,6 @@ gus_dma_output(void *addr, void *buf, int size, void (*intr)(void *), void *arg)
 			size &= 1;
 		}
 		if (size == 0) {
-			mtx_leave(&audio_lock);
 			return 0;
 		}
 
@@ -579,7 +576,6 @@ gus_dma_output(void *addr, void *buf, int size, void (*intr)(void *), void *arg)
 #endif
 
 	gusdmaout(sc, flags, boarddma, (caddr_t) buffer, size);
-	mtx_leave(&audio_lock);
 	return 0;
 }
 
@@ -2179,12 +2175,10 @@ gus_dma_input(void *addr, void *buf, int size, void (*callback)(void *),
 	u_char dmac;
 	DMAPRINTF(("gus_dma_input called\n"));
 
-	mtx_enter(&audio_lock);
 	/*
 	 * Sample SIZE bytes of data from the card, into buffer at BUF.
 	 */
 	if (sc->sc_precision == 16) {
-	    mtx_leave(&audio_lock);
 	    return EINVAL;		/* XXX */
 	}
 
@@ -2214,7 +2208,6 @@ gus_dma_input(void *addr, void *buf, int size, void (*callback)(void *),
 
 
 	DMAPRINTF(("gus_dma_input returning\n"));
-	mtx_leave(&audio_lock);
 	return 0;
 }
 
@@ -3160,6 +3153,40 @@ gus_query_encoding(void *addr, struct audio_encoding *fp)
 	return (0);
 }
 
+void *
+gus_malloc(void *addr, int direction, size_t size, int pool, int flags)
+{
+	struct gus_softc *sc = addr;
+	int drq;
+
+	if (direction == AUMODE_PLAY)
+		drq = sc->sc_drq;
+	else
+		drq = sc->sc_recdrq;
+
+	return isa_malloc(sc->sc_isa, drq, size, pool, flags);
+}
+
+void
+gus_free(void *addr, void *ptr, int pool)
+{
+	isa_free(ptr, pool);
+}
+
+size_t
+gus_round(void *addr, int direction, size_t size)
+{
+	if (size > MAX_ISADMA)
+		size = MAX_ISADMA;
+	return size;
+}
+
+paddr_t
+gus_mappage(void *addr, void *mem, off_t off, int prot)
+{
+	return isa_mappage(mem, off, prot);
+}
+
 /*
  * Setup the ICS mixer in "transparent" mode: reset everything to a sensible
  * level.  Levels as suggested by GUS SDK code.