seperate the ad1816 driver from the mss driver since it shares no code

1 files changed, 622 insertions, 0 deletions

diff --git a/sys/dev/sound/isa/ad1816.c b/sys/dev/sound/isa/ad1816.c
new file mode 100644
index 0000000..a069f6d
--- /dev/null
+++ b/sys/dev/sound/isa/ad1816.c
@@ -0,0 +1,622 @@
+/*
+ * Copyright (c) 1999 Cameron Grant <gandalf@vilnya.demon.co.uk>
+ * Copyright Luigi Rizzo, 1997,1998
+ * Copyright by Hannu Savolainen 1994, 1995
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ * $FreeBSD$
+ */
+
+#include <dev/pcm/sound.h>
+
+#if NPCM > 0 && NPNP > 0
+
+#include <dev/pcm/isa/ad1816.h>
+
+struct ad1816_info;
+
+struct ad1816_chinfo {
+	struct ad1816_info *parent;
+	pcm_channel *channel;
+	snd_dbuf *buffer;
+	int dir;
+};
+
+struct ad1816_info {
+    struct resource *io_base;	/* primary I/O address for the board */
+    int		     io_rid;
+    struct resource *irq;
+    int		     irq_rid;
+    struct resource *drq1; /* play */
+    int		     drq1_rid;
+    struct resource *drq2; /* rec */
+    int		     drq2_rid;
+    bus_dma_tag_t    parent_dmat;
+
+    struct ad1816_chinfo pch, rch;
+};
+
+static driver_intr_t 	ad1816_intr;
+static int 		ad1816_probe(device_t dev);
+static int 		ad1816_attach(device_t dev);
+
+/* IO primitives */
+static int      	ad1816_wait_init(struct ad1816_info *ad1816, int x);
+static u_short		ad1816_read(struct ad1816_info *ad1816, u_int reg);
+static void     	ad1816_write(struct ad1816_info *ad1816, u_int reg, u_short data);
+
+static int ad1816mix_init(snd_mixer *m);
+static int ad1816mix_set(snd_mixer *m, unsigned dev, unsigned left, unsigned right);
+static int ad1816mix_setrecsrc(snd_mixer *m, u_int32_t src);
+static snd_mixer ad1816_mixer = {
+    "ad1816 mixer",
+    ad1816mix_init,
+    ad1816mix_set,
+    ad1816mix_setrecsrc,
+};
+
+static devclass_t pcm_devclass;
+
+/* channel interface */
+static void *ad1816chan_init(void *devinfo, snd_dbuf *b, pcm_channel *c, int dir);
+static int ad1816chan_setdir(void *data, int dir);
+static int ad1816chan_setformat(void *data, u_int32_t format);
+static int ad1816chan_setspeed(void *data, u_int32_t speed);
+static int ad1816chan_setblocksize(void *data, u_int32_t blocksize);
+static int ad1816chan_trigger(void *data, int go);
+static int ad1816chan_getptr(void *data);
+static pcmchan_caps *ad1816chan_getcaps(void *data);
+
+static pcmchan_caps ad1816_caps = {
+	4000, 55200,
+	AFMT_STEREO | AFMT_U8 | AFMT_S16_LE | AFMT_MU_LAW | AFMT_A_LAW,
+	AFMT_STEREO | AFMT_S16_LE
+};
+
+static pcm_channel ad1816_chantemplate = {
+	ad1816chan_init,
+	ad1816chan_setdir,
+	ad1816chan_setformat,
+	ad1816chan_setspeed,
+	ad1816chan_setblocksize,
+	ad1816chan_trigger,
+	ad1816chan_getptr,
+	ad1816chan_getcaps,
+};
+
+#define FULL_DUPLEX(x) (pcm_getflags(x) & SD_F_SIMPLEX)
+#define AD1816_MUTE 31		/* value for mute */
+
+static int
+port_rd(struct resource *port, int off)
+{
+	if (port)
+		return bus_space_read_1(rman_get_bustag(port),
+					rman_get_bushandle(port),
+					off);
+	else
+		return -1;
+}
+
+static void
+port_wr(struct resource *port, int off, u_int8_t data)
+{
+	if (port)
+		return bus_space_write_1(rman_get_bustag(port),
+					 rman_get_bushandle(port),
+					 off, data);
+}
+
+static int
+io_rd(struct ad1816_info *ad1816, int reg)
+{
+	return port_rd(ad1816->io_base, reg);
+}
+
+static void
+io_wr(struct ad1816_info *ad1816, int reg, u_int8_t data)
+{
+	return port_wr(ad1816->io_base, reg, data);
+}
+
+static void
+ad1816_intr(void *arg)
+{
+    	struct ad1816_info *ad1816 = (struct ad1816_info *)arg;
+    	unsigned char   c, served = 0;
+
+    	/* get interupt status */
+    	c = io_rd(ad1816, AD1816_INT);
+
+    	/* check for stray interupts */
+    	if (c & ~(AD1816_INTRCI | AD1816_INTRPI)) {
+		printf("pcm: stray int (%x)\n", c);
+		c &= AD1816_INTRCI | AD1816_INTRPI;
+    	}
+    	/* check for capture interupt */
+    	if (ad1816->rch.buffer->dl && (c & AD1816_INTRCI)) {
+		chn_intr(ad1816->rch.channel);
+		served |= AD1816_INTRCI;		/* cp served */
+    	}
+    	/* check for playback interupt */
+    	if (ad1816->pch.buffer->dl && (c & AD1816_INTRPI)) {
+		chn_intr(ad1816->pch.channel);
+		served |= AD1816_INTRPI;		/* pb served */
+    	}
+    	if (served == 0) {
+		/* this probably means this is not a (working) ad1816 chip, */
+		/* or an error in dma handling                              */
+		printf("pcm: int without reason (%x)\n", c);
+		c = 0;
+    	} else c &= ~served;
+    	io_wr(ad1816, AD1816_INT, c);
+    	c = io_rd(ad1816, AD1816_INT);
+    	if (c != 0) printf("pcm: int clear failed (%x)\n", c);
+}
+
+static int
+ad1816_wait_init(struct ad1816_info *ad1816, int x)
+{
+    	int             n = 0;	/* to shut up the compiler... */
+
+    	for (; x--;)
+		if ((n = (io_rd(ad1816, AD1816_ALE) & AD1816_BUSY)) == 0) DELAY(10);
+		else return n;
+    	printf("ad1816_wait_init failed 0x%02x.\n", n);
+    	return -1;
+}
+
+static unsigned short
+ad1816_read(struct ad1816_info *ad1816, unsigned int reg)
+{
+    	int             flags;
+    	u_short         x = 0;
+
+    	/* we don't want to be blocked here */
+    	flags = spltty();
+    	if (ad1816_wait_init(ad1816, 100) == -1) return 0;
+    	io_wr(ad1816, AD1816_ALE, 0);
+    	io_wr(ad1816, AD1816_ALE, (reg & AD1816_ALEMASK));
+    	if (ad1816_wait_init(ad1816, 100) == -1) return 0;
+    	x = (io_rd(ad1816, AD1816_HIGH) << 8) | io_rd(ad1816, AD1816_LOW);
+    	splx(flags);
+    	return x;
+}
+
+static void
+ad1816_write(struct ad1816_info *ad1816, unsigned int reg, unsigned short data)
+{
+    	int             flags;
+
+    	flags = spltty();
+    	if (ad1816_wait_init(ad1816, 100) == -1) return;
+    	io_wr(ad1816, AD1816_ALE, (reg & AD1816_ALEMASK));
+    	io_wr(ad1816, AD1816_LOW,  (data & 0x000000ff));
+    	io_wr(ad1816, AD1816_HIGH, (data & 0x0000ff00) >> 8);
+    	splx(flags);
+}
+
+static int
+ad1816mix_init(snd_mixer *m)
+{
+	mix_setdevs(m, AD1816_MIXER_DEVICES);
+	mix_setrecdevs(m, AD1816_REC_DEVICES);
+	return 0;
+}
+
+static int
+ad1816mix_set(snd_mixer *m, unsigned dev, unsigned left, unsigned right)
+{
+	struct ad1816_info *ad1816 = mix_getdevinfo(m);
+    	u_short reg = 0;
+
+    	/* Scale volumes */
+    	left = AD1816_MUTE - (AD1816_MUTE * left) / 100;
+    	right = AD1816_MUTE - (AD1816_MUTE * right) / 100;
+
+    	reg = (left << 8) | right;
+
+    	/* do channel selective muting if volume is zero */
+    	if (left == AD1816_MUTE)	reg |= 0x8000;
+    	if (right == AD1816_MUTE)	reg |= 0x0080;
+
+    	switch (dev) {
+    	case SOUND_MIXER_VOLUME:	/* Register 14 master volume */
+		ad1816_write(ad1816, 14, reg);
+		break;
+
+    	case SOUND_MIXER_CD:	/* Register 15 cd */
+    	case SOUND_MIXER_LINE1:
+		ad1816_write(ad1816, 15, reg);
+		break;
+
+    	case SOUND_MIXER_SYNTH:	/* Register 16 synth */
+		ad1816_write(ad1816, 16, reg);
+		break;
+
+    	case SOUND_MIXER_PCM:	/* Register 4 pcm */
+		ad1816_write(ad1816, 4, reg);
+		break;
+
+    	case SOUND_MIXER_LINE:
+    	case SOUND_MIXER_LINE3:	/* Register 18 line in */
+		ad1816_write(ad1816, 18, reg);
+		break;
+
+    	case SOUND_MIXER_MIC:	/* Register 19 mic volume */
+		ad1816_write(ad1816, 19, reg & ~0xff);	/* mic is mono */
+		break;
+
+    	case SOUND_MIXER_IGAIN:
+		/* and now to something completely different ... */
+		ad1816_write(ad1816, 20, ((ad1816_read(ad1816, 20) & ~0x0f0f)
+	      	| (((AD1816_MUTE - left) / 2) << 8) /* four bits of adc gain */
+	      	| ((AD1816_MUTE - right) / 2)));
+		break;
+
+    	default:
+		printf("ad1816_mixer_set(): unknown device.\n");
+		break;
+    	}
+
+    	return left | (right << 8);
+}
+
+static int
+ad1816mix_setrecsrc(snd_mixer *m, u_int32_t src)
+{
+	struct ad1816_info *ad1816 = mix_getdevinfo(m);
+    	int dev;
+
+    	switch (src) {
+    	case SOUND_MASK_LINE:
+    	case SOUND_MASK_LINE3:
+		dev = 0x00;
+		break;
+
+    	case SOUND_MASK_CD:
+    	case SOUND_MASK_LINE1:
+		dev = 0x20;
+		break;
+
+    	case SOUND_MASK_MIC:
+    	default:
+		dev = 0x50;
+		src = SOUND_MASK_MIC;
+    	}
+
+    	dev |= dev << 8;
+    	ad1816_write(ad1816, 20, (ad1816_read(ad1816, 20) & ~0x7070) | dev);
+    	return src;
+}
+
+/* channel interface */
+static void *
+ad1816chan_init(void *devinfo, snd_dbuf *b, pcm_channel *c, int dir)
+{
+	struct ad1816_info *ad1816 = devinfo;
+	struct ad1816_chinfo *ch = (dir == PCMDIR_PLAY)? &ad1816->pch : &ad1816->rch;
+
+	ch->parent = ad1816;
+	ch->channel = c;
+	ch->buffer = b;
+	ch->buffer->bufsize = DSP_BUFFSIZE;
+	if (chn_allocbuf(ch->buffer, ad1816->parent_dmat) == -1) return NULL;
+	return ch;
+}
+
+static int
+ad1816chan_setdir(void *data, int dir)
+{
+	struct ad1816_chinfo *ch = data;
+  	struct ad1816_info *ad1816 = ch->parent;
+
+	ch->buffer->chan = rman_get_start((dir == PCMDIR_PLAY)?
+		ad1816->drq1 : ad1816->drq2);
+	ch->dir = dir;
+	return 0;
+}
+
+static int
+ad1816chan_setformat(void *data, u_int32_t format)
+{
+	struct ad1816_chinfo *ch = data;
+  	struct ad1816_info *ad1816 = ch->parent;
+
+    	int fmt = AD1816_U8, reg;
+    	if (ch->dir == PCMDIR_PLAY) {
+        	reg = AD1816_PLAY;
+        	ad1816_write(ad1816, 8, 0x0000);	/* reset base and current counter */
+        	ad1816_write(ad1816, 9, 0x0000);	/* for playback and capture */
+    	} else {
+        	reg = AD1816_CAPT;
+        	ad1816_write(ad1816, 10, 0x0000);
+        	ad1816_write(ad1816, 11, 0x0000);
+    	}
+    	switch (format & ~AFMT_STEREO) {
+    	case AFMT_A_LAW:
+        	fmt = AD1816_ALAW;
+		break;
+
+    	case AFMT_MU_LAW:
+		fmt = AD1816_MULAW;
+		break;
+
+    	case AFMT_S16_LE:
+		fmt = AD1816_S16LE;
+		break;
+
+    	case AFMT_S16_BE:
+		fmt = AD1816_S16BE;
+		break;
+
+    	case AFMT_U8:
+		fmt = AD1816_U8;
+		break;
+    	}
+    	if (format & AFMT_STEREO) fmt |= AD1816_STEREO;
+    	io_wr(ad1816, reg, fmt);
+    	return format;
+}
+
+static int
+ad1816chan_setspeed(void *data, u_int32_t speed)
+{
+	struct ad1816_chinfo *ch = data;
+    	struct ad1816_info *ad1816 = ch->parent;
+
+    	RANGE(speed, 4000, 55200);
+    	ad1816_write(ad1816, (ch->dir == PCMDIR_PLAY)? 2 : 3, speed);
+    	return speed;
+}
+
+static int
+ad1816chan_setblocksize(void *data, u_int32_t blocksize)
+{
+	return blocksize;
+}
+
+static int
+ad1816chan_trigger(void *data, int go)
+{
+	struct ad1816_chinfo *ch = data;
+    	struct ad1816_info *ad1816 = ch->parent;
+    	int wr, reg;
+
+	buf_isadma(ch->buffer, go);
+    	wr = (ch->dir == PCMDIR_PLAY);
+    	reg = wr? AD1816_PLAY : AD1816_CAPT;
+    	switch (go) {
+    	case PCMTRIG_START:
+		/* start only if not already running */
+		if (!(io_rd(ad1816, reg) & AD1816_ENABLE)) {
+	    		int cnt = ((ch->buffer->dl) >> 2) - 1;
+	    		ad1816_write(ad1816, wr? 8 : 10, cnt); /* count */
+	    		ad1816_write(ad1816, 1, ad1816_read(ad1816, 1) |
+				     (wr? 0x8000 : 0x4000)); /* enable int */
+	    		/* enable playback */
+	    		io_wr(ad1816, reg, io_rd(ad1816, reg) | AD1816_ENABLE);
+	    		if (!(io_rd(ad1816, reg) & AD1816_ENABLE))
+				printf("ad1816: failed to start %s DMA!\n",
+				       wr? "play" : "rec");
+		}
+		break;
+
+    	case PCMTRIG_STOP:
+    	case PCMTRIG_ABORT:		/* XXX check this... */
+		/* we don't test here if it is running... */
+		if (wr) {
+	    		ad1816_write(ad1816, 1, ad1816_read(ad1816, 1) &
+				     ~(wr? 0x8000 : 0x4000));
+	    		/* disable int */
+	    		io_wr(ad1816, reg, io_rd(ad1816, reg) & ~AD1816_ENABLE);
+	    		/* disable playback */
+	    		if (io_rd(ad1816, reg) & AD1816_ENABLE)
+				printf("ad1816: failed to stop %s DMA!\n",
+				       wr? "play" : "rec");
+	    		ad1816_write(ad1816, wr? 8 : 10, 0); /* reset base cnt */
+	    		ad1816_write(ad1816, wr? 9 : 11, 0); /* reset cur cnt */
+		}
+		break;
+    	}
+    	return 0;
+}
+
+static int
+ad1816chan_getptr(void *data)
+{
+	struct ad1816_chinfo *ch = data;
+	return buf_isadmaptr(ch->buffer);
+}
+
+static pcmchan_caps *
+ad1816chan_getcaps(void *data)
+{
+	return &ad1816_caps;
+}
+
+static void
+ad1816_release_resources(struct ad1816_info *ad1816, device_t dev)
+{
+    	if (ad1816->irq) {
+		bus_release_resource(dev, SYS_RES_IRQ, ad1816->irq_rid,
+				     ad1816->irq);
+		ad1816->irq = 0;
+    	}
+    	if (ad1816->drq1) {
+		bus_release_resource(dev, SYS_RES_DRQ, ad1816->drq1_rid,
+				     ad1816->drq1);
+		ad1816->drq1 = 0;
+    	}
+    	if (ad1816->drq2) {
+		bus_release_resource(dev, SYS_RES_DRQ, ad1816->drq2_rid,
+				     ad1816->drq2);
+		ad1816->drq2 = 0;
+    	}
+    	if (ad1816->io_base) {
+		bus_release_resource(dev, SYS_RES_IOPORT, ad1816->io_rid,
+				     ad1816->io_base);
+		ad1816->io_base = 0;
+    	}
+    	free(ad1816, M_DEVBUF);
+}
+
+static int
+ad1816_alloc_resources(struct ad1816_info *ad1816, device_t dev)
+{
+    	int ok = 1, pdma, rdma;
+	if (!ad1816->io_base)
+    		ad1816->io_base = bus_alloc_resource(dev, SYS_RES_IOPORT, &ad1816->io_rid,
+						  0, ~0, 1, RF_ACTIVE);
+	if (!ad1816->irq)
+    		ad1816->irq = bus_alloc_resource(dev, SYS_RES_IRQ, &ad1816->irq_rid,
+					      0, ~0, 1, RF_ACTIVE);
+	if (!ad1816->drq1)
+    		ad1816->drq1 = bus_alloc_resource(dev, SYS_RES_DRQ, &ad1816->drq1_rid,
+					       0, ~0, 1, RF_ACTIVE);
+    	if (ad1816->drq2_rid >= 0 && !ad1816->drq2)
+        	ad1816->drq2 = bus_alloc_resource(dev, SYS_RES_DRQ, &ad1816->drq2_rid,
+					       0, ~0, 1, RF_ACTIVE);
+
+    	if (!ad1816->io_base || !ad1816->drq1 || !ad1816->irq) ok = 0;
+    	if (ad1816->drq2_rid >= 0 && !ad1816->drq2) ok = 0;
+
+	if (ok) {
+		pdma = rman_get_start(ad1816->drq1);
+		isa_dma_acquire(pdma);
+		isa_dmainit(pdma, DSP_BUFFSIZE);
+		if (ad1816->drq2) {
+			rdma = rman_get_start(ad1816->drq2);
+			isa_dma_acquire(rdma);
+			isa_dmainit(rdma, DSP_BUFFSIZE);
+		} else rdma = pdma;
+    		if (pdma == rdma)
+			pcm_setflags(dev, pcm_getflags(dev) | SD_F_SIMPLEX);
+	}
+    	return ok;
+}
+
+static int
+ad1816_init(struct ad1816_info *ad1816, device_t dev)
+{
+    	ad1816_write(ad1816, 1, 0x2);	/* disable interrupts */
+    	ad1816_write(ad1816, 32, 0x90F0);	/* SoundSys Mode, split fmt */
+
+    	ad1816_write(ad1816, 5, 0x8080);	/* FM volume mute */
+    	ad1816_write(ad1816, 6, 0x8080);	/* I2S1 volume mute */
+    	ad1816_write(ad1816, 7, 0x8080);	/* I2S0 volume mute */
+    	ad1816_write(ad1816, 17, 0x8888);	/* VID Volume mute */
+    	ad1816_write(ad1816, 20, 0x5050);	/* recsrc mic, agc off */
+    	/* adc gain is set to 0 */
+
+	return 0;
+}
+
+static int
+ad1816_probe(device_t dev)
+{
+    	char *s = NULL;
+    	u_int32_t logical_id = isa_get_logicalid(dev);
+
+    	switch (logical_id) {
+    	case 0x80719304: /* ADS7180 */
+ 		s = "Terratec Soundsystem BASE 1";
+ 		break;
+    	}
+
+    	if (s) {
+		device_set_desc(dev, s);
+		return 0;
+    	}
+    	return ENXIO;
+}
+
+static int
+ad1816_attach(device_t dev)
+{
+	struct ad1816_info *ad1816;
+    	snddev_info *d = device_get_softc(dev);
+    	void *ih;
+    	char status[SND_STATUSLEN];
+
+	ad1816 = (struct ad1816_info *)malloc(sizeof *ad1816, M_DEVBUF, M_NOWAIT);
+	if (!ad1816) return ENXIO;
+	bzero(ad1816, sizeof *ad1816);
+
+	ad1816->io_rid = 2;
+	ad1816->irq_rid = 0;
+	ad1816->drq1_rid = 0;
+	ad1816->drq2_rid = 1;
+
+    	if (!ad1816_alloc_resources(ad1816, dev)) goto no;
+    	ad1816_init(ad1816, dev);
+    	mixer_init(d, &ad1816_mixer, ad1816);
+	bus_setup_intr(dev, ad1816->irq, INTR_TYPE_TTY, ad1816_intr, ad1816, &ih);
+    	if (bus_dma_tag_create(/*parent*/NULL, /*alignment*/2, /*boundary*/0,
+			/*lowaddr*/BUS_SPACE_MAXADDR_24BIT,
+			/*highaddr*/BUS_SPACE_MAXADDR,
+			/*filter*/NULL, /*filterarg*/NULL,
+			/*maxsize*/DSP_BUFFSIZE, /*nsegments*/1,
+			/*maxsegz*/0x3ffff,
+			/*flags*/0, &ad1816->parent_dmat) != 0) {
+		device_printf(dev, "unable to create dma tag\n");
+		goto no;
+    	}
+    	snprintf(status, SND_STATUSLEN, "at io 0x%lx irq %ld drq %ld",
+    	     	rman_get_start(ad1816->io_base),
+		rman_get_start(ad1816->irq),
+		rman_get_start(ad1816->drq1));
+    	if (FULL_DUPLEX(dev)) snprintf(status + strlen(status),
+        	SND_STATUSLEN - strlen(status), ":%ld",
+		rman_get_start(ad1816->drq1));
+
+    	if (pcm_register(dev, ad1816, 1, 1)) goto no;
+    	pcm_addchan(dev, PCMDIR_REC, &ad1816_chantemplate, ad1816);
+    	pcm_addchan(dev, PCMDIR_PLAY, &ad1816_chantemplate, ad1816);
+    	pcm_setstatus(dev, status);
+
+    	return 0;
+no:
+    	ad1816_release_resources(ad1816, dev);
+    	return ENXIO;
+
+}
+
+static device_method_t ad1816_methods[] = {
+	/* Device interface */
+	DEVMETHOD(device_probe,		ad1816_probe),
+	DEVMETHOD(device_attach,	ad1816_attach),
+
+	{ 0, 0 }
+};
+
+static driver_t ad1816_driver = {
+	"pcm",
+	ad1816_methods,
+	sizeof(snddev_info),
+};
+
+DRIVER_MODULE(mss, isa, ad1816_driver, pcm_devclass, 0, 0);
+
+#endif