1 files changed, 235 insertions, 247 deletions

diff --git a/sys/dev/sound/pci/via82c686.c b/sys/dev/sound/pci/via82c686.c
index df72136..27d7aef 100644
--- a/sys/dev/sound/pci/via82c686.c
+++ b/sys/dev/sound/pci/via82c686.c
@@ -70,25 +70,9 @@ struct via_info {
 static u_int32_t via_rd(struct via_info *via, int regno, int size);
 static void via_wr(struct via_info *, int regno, u_int32_t data, int size);
 
-int via_waitready_codec(struct via_info *via);
-int via_waitvalid_codec(struct via_info *via);
-u_int32_t via_read_codec(void *addr, int reg);
-void via_write_codec(void *addr, int reg, u_int32_t val);
-
 static void via_intr(void *);
 bus_dmamap_callback_t dma_cb;
 
-
-/* channel interface */
-static void *viachan_init(void *devinfo, snd_dbuf *b, pcm_channel *c, int dir);
-static int viachan_setdir(void *data, int dir);
-static int viachan_setformat(void *data, u_int32_t format);
-static int viachan_setspeed(void *data, u_int32_t speed);
-static int viachan_setblocksize(void *data, u_int32_t blocksize);
-static int viachan_trigger(void *data, int go);
-static int viachan_getptr(void *data);
-static pcmchan_caps *viachan_getcaps(void *data);
-
 static u_int32_t via_playfmt[] = {
 	AFMT_U8,
 	AFMT_STEREO | AFMT_U8,
@@ -107,217 +91,6 @@ static u_int32_t via_recfmt[] = {
 };
 static pcmchan_caps via_reccaps = {4000, 48000, via_recfmt, 0};
 
-static pcm_channel via_chantemplate = {
-	viachan_init,
-	viachan_setdir,
-	viachan_setformat,
-	viachan_setspeed,
-	viachan_setblocksize,
-	viachan_trigger,
-	viachan_getptr,
-	viachan_getcaps,
-	NULL, 			/* free */
-	NULL, 			/* nop1 */
-	NULL, 			/* nop2 */
-	NULL, 			/* nop3 */
-	NULL, 			/* nop4 */
-	NULL, 			/* nop5 */
-	NULL, 			/* nop6 */
-	NULL, 			/* nop7 */
-};
-
-
-/*
- *  Probe and attach the card
- */
-static int
-via_probe(device_t dev)
-{
-	if (pci_get_devid(dev) == VIA_PCI_ID) {
-	    device_set_desc(dev, "VIA VT82C686A AC'97 Audio");
-	    return 0;
-	}
-	return ENXIO;
-}
-
-
-void dma_cb(void *p, bus_dma_segment_t *bds, int a, int b)
-{
-}
-
-
-static int
-via_attach(device_t dev)
-{
-	struct via_info *via = 0;
-	struct ac97_info *codec = 0;
-	char		status[SND_STATUSLEN];
-
-	u_int32_t	data;
-
-	u_int16_t	v;
-	bus_dmamap_t	sgd_dma_map;
-
-	if ((via = malloc(sizeof *via, M_DEVBUF, M_NOWAIT)) == NULL) {
-		device_printf(dev, "cannot allocate softc\n");
-		return ENXIO;
-	}
-	bzero(via, sizeof *via);
-
-	/* Get resources */
-	data = pci_read_config(dev, PCIR_COMMAND, 2);
-	data |= (PCIM_CMD_PORTEN | PCIM_CMD_BUSMASTEREN);
-	pci_write_config(dev, PCIR_COMMAND, data, 2);
-	data = pci_read_config(dev, PCIR_COMMAND, 2);
-
-	pci_write_config(dev, VIA_PCICONF_MISC,
-		VIA_PCICONF_ACLINKENAB | VIA_PCICONF_ACSGD |
-		VIA_PCICONF_ACNOTRST | VIA_PCICONF_ACVSR, 1);
-
-	via->regid = PCIR_MAPS;
-	via->reg = bus_alloc_resource(dev, SYS_RES_IOPORT, &via->regid,
-		0, ~0, 1, RF_ACTIVE);
-	if (!via->reg) {
-		device_printf(dev, "via: Cannot allocate bus resource.");
-		goto bad;
-	}
-	via->st = rman_get_bustag(via->reg);
-	via->sh = rman_get_bushandle(via->reg);
-
-	via->irqid = 0;
-	via->irq = bus_alloc_resource(dev, SYS_RES_IRQ, &via->irqid,
-		0, ~0, 1, RF_ACTIVE | RF_SHAREABLE);
-	if (!via->irq
-	    || bus_setup_intr(dev, via->irq, INTR_TYPE_TTY, via_intr, via, &via->ih)){
-		device_printf(dev, "unable to map interrupt\n");
-		goto bad;
-	}
-
-	via_wr(via, VIA_PLAY_MODE,
-		VIA_RPMODE_AUTOSTART |
-		VIA_RPMODE_INTR_FLAG | VIA_RPMODE_INTR_EOL, 1);
-	via_wr(via, VIA_RECORD_MODE,
-		VIA_RPMODE_AUTOSTART |
-		VIA_RPMODE_INTR_FLAG | VIA_RPMODE_INTR_EOL, 1);
-
-	codec = ac97_create(dev, via, NULL,
-		via_read_codec, via_write_codec);
-	if (!codec) goto bad;
-
-	mixer_init(dev, &ac97_mixer, codec);
-
-	/*
-	 *  The mixer init resets the codec.  So enabling VRA must be done
-	 *  afterwards.
-	 */
-	v = via_read_codec(via, AC97_REG_EXT_AUDIO_ID);
-	v &= (AC97_ENAB_VRA | AC97_ENAB_MICVRA);
-	via_write_codec(via, AC97_REG_EXT_AUDIO_STAT, v);
-	via->codec_caps = v;
-	{
-		v = via_read_codec(via, AC97_REG_EXT_AUDIO_STAT);
-		DEB(printf("init: codec stat: %d\n", v));
-	}
-
-	if (!(v & AC97_CODEC_DOES_VRA)) {
-		/* no VRA => can do only 48 kbps */
-		via_playcaps.minspeed = 48000;
-		via_reccaps.minspeed = 48000;
-	}
-
-	/* DMA tag for buffers */
-	if (bus_dma_tag_create(/*parent*/NULL, /*alignment*/2, /*boundary*/0,
-		/*lowaddr*/BUS_SPACE_MAXADDR_32BIT,
-		/*highaddr*/BUS_SPACE_MAXADDR,
-		/*filter*/NULL, /*filterarg*/NULL,
-		/*maxsize*/VIA_BUFFSIZE, /*nsegments*/1, /*maxsegz*/0x3ffff,
-		/*flags*/0, &via->parent_dmat) != 0) {
-		device_printf(dev, "unable to create dma tag\n");
-		goto bad;
-	}
-
-	/*
-	 *  DMA tag for SGD table.  The 686 uses scatter/gather DMA and
-	 *  requires a list in memory of work to do.  We need only 16 bytes
-	 *  for this list, and it is wasteful to allocate 16K.
-	 */
-	if (bus_dma_tag_create(/*parent*/NULL, /*alignment*/2, /*boundary*/0,
-		/*lowaddr*/BUS_SPACE_MAXADDR_32BIT,
-		/*highaddr*/BUS_SPACE_MAXADDR,
-		/*filter*/NULL, /*filterarg*/NULL,
-		/*maxsize*/NSEGS * sizeof(struct via_dma_op),
-		/*nsegments*/1, /*maxsegz*/0x3ffff,
-		/*flags*/0, &via->sgd_dmat) != 0) {
-		device_printf(dev, "unable to create dma tag\n");
-		goto bad;
-	}
-
-	if (bus_dmamem_alloc(via->sgd_dmat, (void **)&via->sgd_table,
-		BUS_DMA_NOWAIT, &sgd_dma_map) == -1) goto bad;
-	if (bus_dmamap_load(via->sgd_dmat, sgd_dma_map, via->sgd_table,
-		NSEGS * sizeof(struct via_dma_op), dma_cb, 0, 0)) goto bad;
-
-	snprintf(status, SND_STATUSLEN, "at io 0x%lx irq %ld",
-		rman_get_start(via->reg), rman_get_start(via->irq));
-
-	/* Register */
-	if (pcm_register(dev, via, 1, 1)) goto bad;
-	pcm_addchan(dev, PCMDIR_PLAY, &via_chantemplate, via);
-	pcm_addchan(dev, PCMDIR_REC, &via_chantemplate, via);
-	pcm_setstatus(dev, status);
-	return 0;
-bad:
-	if (codec) ac97_destroy(codec);
-	if (via->reg) bus_release_resource(dev, SYS_RES_IOPORT, via->regid, via->reg);
-	if (via->ih) bus_teardown_intr(dev, via->irq, via->ih);
-	if (via->irq) bus_release_resource(dev, SYS_RES_IRQ, via->irqid, via->irq);
-	if (via->parent_dmat) bus_dma_tag_destroy(via->parent_dmat);
-	if (via->sgd_dmat) bus_dma_tag_destroy(via->sgd_dmat);
-	if (via) free(via, M_DEVBUF);
-	return ENXIO;
-}
-
-static int
-via_detach(device_t dev)
-{
-	int r;
-	struct via_info *via = 0;
-
-	r = pcm_unregister(dev);
-	if (r)
-		return r;
-
-	via = pcm_getdevinfo(dev);
-	bus_release_resource(dev, SYS_RES_IOPORT, via->regid, via->reg);
-	bus_teardown_intr(dev, via->irq, via->ih);
-	bus_release_resource(dev, SYS_RES_IRQ, via->irqid, via->irq);
-	bus_dma_tag_destroy(via->parent_dmat);
-	bus_dma_tag_destroy(via->sgd_dmat);
-	free(via, M_DEVBUF);
-	return 0;
-}
-
-
-static device_method_t via_methods[] = {
-	DEVMETHOD(device_probe,		via_probe),
-	DEVMETHOD(device_attach,	via_attach),
-	DEVMETHOD(device_detach,	via_detach),
-	{ 0, 0}
-};
-
-static driver_t via_driver = {
-	"pcm",
-	via_methods,
-	sizeof(snddev_info),
-};
-
-static devclass_t pcm_devclass;
-
-DRIVER_MODULE(via, pci, via_driver, pcm_devclass, 0, 0);
-MODULE_DEPEND(via, snd_pcm, PCM_MINVER, PCM_PREFVER, PCM_MAXVER);
-MODULE_VERSION(via, 1);
-
-
 static u_int32_t
 via_rd(struct via_info *via, int regno, int size)
 {
@@ -352,9 +125,10 @@ via_wr(struct via_info *via, int regno, u_int32_t data, int size)
 	}
 }
 
-
+/* -------------------------------------------------------------------- */
 /* Codec interface */
-int
+
+static int
 via_waitready_codec(struct via_info *via)
 {
 	int i;
@@ -372,7 +146,7 @@ via_waitready_codec(struct via_info *via)
 }
 
 
-int
+static int
 via_waitvalid_codec(struct via_info *via)
 {
 	int i;
@@ -390,20 +164,22 @@ via_waitvalid_codec(struct via_info *via)
 }
 
 
-void
-via_write_codec(void *addr, int reg, u_int32_t val)
+static int
+via_write_codec(kobj_t obj, void *addr, int reg, u_int32_t val)
 {
 	struct via_info *via = addr;
 
-	if (via_waitready_codec(via)) return;
+	if (via_waitready_codec(via)) return -1;
 
 	via_wr(via, VIA_CODEC_CTL,
 		VIA_CODEC_PRIVALID | VIA_CODEC_INDEX(reg) | val, 4);
+
+	return 0;
 }
 
 
-u_int32_t
-via_read_codec(void *addr, int reg)
+static int
+via_read_codec(kobj_t obj, void *addr, int reg)
 {
 	struct via_info *via = addr;
 
@@ -422,10 +198,18 @@ via_read_codec(void *addr, int reg)
 	return via_rd(via, VIA_CODEC_CTL, 2);
 }
 
+static kobj_method_t via_ac97_methods[] = {
+    	KOBJMETHOD(ac97_read,		via_read_codec),
+    	KOBJMETHOD(ac97_write,		via_write_codec),
+	{ 0, 0 }
+};
+AC97_DECLARE(via_ac97);
+
+/* -------------------------------------------------------------------- */
 
 /* channel interface */
 static void *
-viachan_init(void *devinfo, snd_dbuf *b, pcm_channel *c, int dir)
+viachan_init(kobj_t obj, void *devinfo, snd_dbuf *b, pcm_channel *c, int dir)
 {
 	struct via_info *via = devinfo;
 	struct via_chinfo *ch = (dir == PCMDIR_PLAY) ? &via->pch : &via->rch;
@@ -440,7 +224,7 @@ viachan_init(void *devinfo, snd_dbuf *b, pcm_channel *c, int dir)
 }
 
 static int
-viachan_setdir(void *data, int dir)
+viachan_setdir(kobj_t obj, void *data, int dir)
 {
 	struct via_chinfo *ch = data;
 	struct via_info *via = ch->parent;
@@ -477,7 +261,7 @@ DEB(printf("ado->ptr/flags = %x/%x\n", phys_addr, flag));
 }
 
 static int
-viachan_setformat(void *data, u_int32_t format)
+viachan_setformat(kobj_t obj, void *data, u_int32_t format)
 {
 	struct via_chinfo *ch = data;
 	struct via_info *via = ch->parent;
@@ -509,7 +293,7 @@ DEB(printf("set record format: %x\n", format));
 }
 
 static int
-viachan_setspeed(void *data, u_int32_t speed)
+viachan_setspeed(kobj_t obj, void *data, u_int32_t speed)
 {
 	struct via_chinfo *ch = data;
 	struct via_info *via = ch->parent;
@@ -526,8 +310,8 @@ viachan_setspeed(void *data, u_int32_t speed)
 	if (ch->dir == PCMDIR_PLAY) {
 DEB(printf("requested play speed: %d\n", speed));
 		if (via->codec_caps & AC97_CODEC_DOES_VRA) {
-			via_write_codec(via, AC97_REG_EXT_DAC_RATE, speed);
-			speed = via_read_codec(via, AC97_REG_EXT_DAC_RATE);
+			via_write_codec(NULL, via, AC97_REG_EXT_DAC_RATE, speed);
+			speed = via_read_codec(NULL, via, AC97_REG_EXT_DAC_RATE);
 		}
 		else {
 DEB(printf("VRA not supported!\n"));
@@ -538,8 +322,8 @@ DEB(printf("obtained play speed: %d\n", speed));
 	else {
 DEB(printf("requested record speed: %d\n", speed));
 		if (via->codec_caps & AC97_CODEC_DOES_VRA) {
-			via_write_codec(via, AC97_REG_EXT_ADC_RATE, speed);
-			speed = via_read_codec(via, AC97_REG_EXT_ADC_RATE);
+			via_write_codec(NULL, via, AC97_REG_EXT_ADC_RATE, speed);
+			speed = via_read_codec(NULL, via, AC97_REG_EXT_ADC_RATE);
 		}
 		else {
 DEB(printf("VRA not supported!\n"));
@@ -551,7 +335,7 @@ DEB(printf("obtained record speed: %d\n", speed));
 }
 
 static int
-viachan_setblocksize(void *data, u_int32_t blocksize)
+viachan_setblocksize(kobj_t obj, void *data, u_int32_t blocksize)
 {
 	struct via_chinfo *ch = data;
 
@@ -559,7 +343,7 @@ viachan_setblocksize(void *data, u_int32_t blocksize)
 }
 
 static int
-viachan_trigger(void *data, int go)
+viachan_trigger(kobj_t obj, void *data, int go)
 {
 	struct via_chinfo *ch = data;
 	struct via_info *via = ch->parent;
@@ -600,7 +384,7 @@ DEB(printf("viachan_trigger: go=%d\n", go));
 }
 
 static int
-viachan_getptr(void *data)
+viachan_getptr(kobj_t obj, void *data)
 {
 	struct via_chinfo *ch = data;
 	struct via_info *via = ch->parent;
@@ -658,12 +442,27 @@ DEB(printf("return ptr=%d\n", ptr));
 }
 
 static pcmchan_caps *
-viachan_getcaps(void *data)
+viachan_getcaps(kobj_t obj, void *data)
 {
 	struct via_chinfo *ch = data;
 	return (ch->dir == PCMDIR_PLAY) ? &via_playcaps : &via_reccaps;
 }
 
+static kobj_method_t viachan_methods[] = {
+    	KOBJMETHOD(channel_init,		viachan_init),
+    	KOBJMETHOD(channel_setdir,		viachan_setdir),
+    	KOBJMETHOD(channel_setformat,		viachan_setformat),
+    	KOBJMETHOD(channel_setspeed,		viachan_setspeed),
+    	KOBJMETHOD(channel_setblocksize,	viachan_setblocksize),
+    	KOBJMETHOD(channel_trigger,		viachan_trigger),
+    	KOBJMETHOD(channel_getptr,		viachan_getptr),
+    	KOBJMETHOD(channel_getcaps,		viachan_getcaps),
+	{ 0, 0 }
+};
+CHANNEL_DECLARE(viachan);
+
+/* -------------------------------------------------------------------- */
+
 static void
 via_intr(void *p)
 {
@@ -686,4 +485,193 @@ DEB(printf("viachan_intr\n"));
 	}
 }
 
+/*
+ *  Probe and attach the card
+ */
+static int
+via_probe(device_t dev)
+{
+	if (pci_get_devid(dev) == VIA_PCI_ID) {
+	    device_set_desc(dev, "VIA VT82C686A AC'97 Audio");
+	    return 0;
+	}
+	return ENXIO;
+}
+
+
+void dma_cb(void *p, bus_dma_segment_t *bds, int a, int b)
+{
+}
+
+
+static int
+via_attach(device_t dev)
+{
+	struct via_info *via = 0;
+	struct ac97_info *codec = 0;
+	char		status[SND_STATUSLEN];
+
+	u_int32_t	data;
+
+	u_int16_t	v;
+	bus_dmamap_t	sgd_dma_map;
+
+	if ((via = malloc(sizeof *via, M_DEVBUF, M_NOWAIT)) == NULL) {
+		device_printf(dev, "cannot allocate softc\n");
+		return ENXIO;
+	}
+	bzero(via, sizeof *via);
+
+	/* Get resources */
+	data = pci_read_config(dev, PCIR_COMMAND, 2);
+	data |= (PCIM_CMD_PORTEN | PCIM_CMD_BUSMASTEREN);
+	pci_write_config(dev, PCIR_COMMAND, data, 2);
+	data = pci_read_config(dev, PCIR_COMMAND, 2);
+
+	pci_write_config(dev, VIA_PCICONF_MISC,
+		VIA_PCICONF_ACLINKENAB | VIA_PCICONF_ACSGD |
+		VIA_PCICONF_ACNOTRST | VIA_PCICONF_ACVSR, 1);
+
+	via->regid = PCIR_MAPS;
+	via->reg = bus_alloc_resource(dev, SYS_RES_IOPORT, &via->regid,
+		0, ~0, 1, RF_ACTIVE);
+	if (!via->reg) {
+		device_printf(dev, "via: Cannot allocate bus resource.");
+		goto bad;
+	}
+	via->st = rman_get_bustag(via->reg);
+	via->sh = rman_get_bushandle(via->reg);
+
+	via->irqid = 0;
+	via->irq = bus_alloc_resource(dev, SYS_RES_IRQ, &via->irqid,
+		0, ~0, 1, RF_ACTIVE | RF_SHAREABLE);
+	if (!via->irq
+	    || bus_setup_intr(dev, via->irq, INTR_TYPE_TTY, via_intr, via, &via->ih)){
+		device_printf(dev, "unable to map interrupt\n");
+		goto bad;
+	}
+
+	via_wr(via, VIA_PLAY_MODE,
+		VIA_RPMODE_AUTOSTART |
+		VIA_RPMODE_INTR_FLAG | VIA_RPMODE_INTR_EOL, 1);
+	via_wr(via, VIA_RECORD_MODE,
+		VIA_RPMODE_AUTOSTART |
+		VIA_RPMODE_INTR_FLAG | VIA_RPMODE_INTR_EOL, 1);
+
+	codec = AC97_CREATE(dev, via, via_ac97);
+	if (!codec) goto bad;
+
+	mixer_init(dev, ac97_getmixerclass(), codec);
+
+	/*
+	 *  The mixer init resets the codec.  So enabling VRA must be done
+	 *  afterwards.
+	 */
+	v = via_read_codec(NULL, via, AC97_REG_EXT_AUDIO_ID);
+	v &= (AC97_ENAB_VRA | AC97_ENAB_MICVRA);
+	via_write_codec(NULL, via, AC97_REG_EXT_AUDIO_STAT, v);
+	via->codec_caps = v;
+	{
+		v = via_read_codec(NULL, via, AC97_REG_EXT_AUDIO_STAT);
+		DEB(printf("init: codec stat: %d\n", v));
+	}
+
+	if (!(v & AC97_CODEC_DOES_VRA)) {
+		/* no VRA => can do only 48 kbps */
+		via_playcaps.minspeed = 48000;
+		via_reccaps.minspeed = 48000;
+	}
+
+	/* DMA tag for buffers */
+	if (bus_dma_tag_create(/*parent*/NULL, /*alignment*/2, /*boundary*/0,
+		/*lowaddr*/BUS_SPACE_MAXADDR_32BIT,
+		/*highaddr*/BUS_SPACE_MAXADDR,
+		/*filter*/NULL, /*filterarg*/NULL,
+		/*maxsize*/VIA_BUFFSIZE, /*nsegments*/1, /*maxsegz*/0x3ffff,
+		/*flags*/0, &via->parent_dmat) != 0) {
+		device_printf(dev, "unable to create dma tag\n");
+		goto bad;
+	}
+
+	/*
+	 *  DMA tag for SGD table.  The 686 uses scatter/gather DMA and
+	 *  requires a list in memory of work to do.  We need only 16 bytes
+	 *  for this list, and it is wasteful to allocate 16K.
+	 */
+	if (bus_dma_tag_create(/*parent*/NULL, /*alignment*/2, /*boundary*/0,
+		/*lowaddr*/BUS_SPACE_MAXADDR_32BIT,
+		/*highaddr*/BUS_SPACE_MAXADDR,
+		/*filter*/NULL, /*filterarg*/NULL,
+		/*maxsize*/NSEGS * sizeof(struct via_dma_op),
+		/*nsegments*/1, /*maxsegz*/0x3ffff,
+		/*flags*/0, &via->sgd_dmat) != 0) {
+		device_printf(dev, "unable to create dma tag\n");
+		goto bad;
+	}
+
+	if (bus_dmamem_alloc(via->sgd_dmat, (void **)&via->sgd_table,
+		BUS_DMA_NOWAIT, &sgd_dma_map) == -1) goto bad;
+	if (bus_dmamap_load(via->sgd_dmat, sgd_dma_map, via->sgd_table,
+		NSEGS * sizeof(struct via_dma_op), dma_cb, 0, 0)) goto bad;
+
+	snprintf(status, SND_STATUSLEN, "at io 0x%lx irq %ld",
+		rman_get_start(via->reg), rman_get_start(via->irq));
+
+	/* Register */
+	if (pcm_register(dev, via, 1, 1)) goto bad;
+	pcm_addchan(dev, PCMDIR_PLAY, &viachan_class, via);
+	pcm_addchan(dev, PCMDIR_REC, &viachan_class, via);
+	pcm_setstatus(dev, status);
+	return 0;
+bad:
+	if (codec) ac97_destroy(codec);
+	if (via->reg) bus_release_resource(dev, SYS_RES_IOPORT, via->regid, via->reg);
+	if (via->ih) bus_teardown_intr(dev, via->irq, via->ih);
+	if (via->irq) bus_release_resource(dev, SYS_RES_IRQ, via->irqid, via->irq);
+	if (via->parent_dmat) bus_dma_tag_destroy(via->parent_dmat);
+	if (via->sgd_dmat) bus_dma_tag_destroy(via->sgd_dmat);
+	if (via) free(via, M_DEVBUF);
+	return ENXIO;
+}
+
+static int
+via_detach(device_t dev)
+{
+	int r;
+	struct via_info *via = 0;
+
+	r = pcm_unregister(dev);
+	if (r)
+		return r;
+
+	via = pcm_getdevinfo(dev);
+	bus_release_resource(dev, SYS_RES_IOPORT, via->regid, via->reg);
+	bus_teardown_intr(dev, via->irq, via->ih);
+	bus_release_resource(dev, SYS_RES_IRQ, via->irqid, via->irq);
+	bus_dma_tag_destroy(via->parent_dmat);
+	bus_dma_tag_destroy(via->sgd_dmat);
+	free(via, M_DEVBUF);
+	return 0;
+}
+
+
+static device_method_t via_methods[] = {
+	DEVMETHOD(device_probe,		via_probe),
+	DEVMETHOD(device_attach,	via_attach),
+	DEVMETHOD(device_detach,	via_detach),
+	{ 0, 0}
+};
+
+static driver_t via_driver = {
+	"pcm",
+	via_methods,
+	sizeof(snddev_info),
+};
+
+static devclass_t pcm_devclass;
+
+DRIVER_MODULE(via, pci, via_driver, pcm_devclass, 0, 0);
+MODULE_DEPEND(via, snd_pcm, PCM_MINVER, PCM_PREFVER, PCM_MAXVER);
+MODULE_VERSION(via, 1);
+