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freebsd-dev/sys/dev/sound/isa/ad1816.c

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/*
* 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.
*/
#include <dev/sound/pcm/sound.h>
#include <dev/sound/isa/ad1816.h>
#include "mixer_if.h"
SND_DECLARE_FILE("$FreeBSD$");
struct ad1816_info;
struct ad1816_chinfo {
struct ad1816_info *parent;
struct pcm_channel *channel;
struct snd_dbuf *buffer;
int dir, blksz;
};
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;
void *ih;
bus_dma_tag_t parent_dmat;
void *lock;
unsigned int bufsize;
struct ad1816_chinfo pch, rch;
};
static u_int32_t ad1816_fmt[] = {
AFMT_U8,
AFMT_STEREO | AFMT_U8,
AFMT_S16_LE,
AFMT_STEREO | AFMT_S16_LE,
AFMT_MU_LAW,
AFMT_STEREO | AFMT_MU_LAW,
AFMT_A_LAW,
AFMT_STEREO | AFMT_A_LAW,
0
};
static struct pcmchan_caps ad1816_caps = {4000, 55200, ad1816_fmt, 0};
#define AD1816_MUTE 31 /* value for mute */
static void
ad1816_lock(struct ad1816_info *ad1816)
{
snd_mtxlock(ad1816->lock);
}
static void
ad1816_unlock(struct ad1816_info *ad1816)
{
snd_mtxunlock(ad1816->lock);
}
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;
ad1816_lock(ad1816);
/* 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 (sndbuf_runsz(ad1816->rch.buffer) && (c & AD1816_INTRCI)) {
chn_intr(ad1816->rch.channel);
served |= AD1816_INTRCI; /* cp served */
}
/* check for playback interupt */
if (sndbuf_runsz(ad1816->pch.buffer) && (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);
ad1816_unlock(ad1816);
}
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)
{
u_short x = 0;
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);
return x;
}
static void
ad1816_write(struct ad1816_info *ad1816, unsigned int reg, unsigned short data)
{
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);
}
/* -------------------------------------------------------------------- */
static int
ad1816mix_init(struct snd_mixer *m)
{
mix_setdevs(m, AD1816_MIXER_DEVICES);
mix_setrecdevs(m, AD1816_REC_DEVICES);
return 0;
}
static int
ad1816mix_set(struct 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;
ad1816_lock(ad1816);
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;
}
ad1816_unlock(ad1816);
left = ((AD1816_MUTE - left) * 100) / AD1816_MUTE;
right = ((AD1816_MUTE - right) * 100) / AD1816_MUTE;
return left | (right << 8);
}
static int
ad1816mix_setrecsrc(struct 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_lock(ad1816);
ad1816_write(ad1816, 20, (ad1816_read(ad1816, 20) & ~0x7070) | dev);
ad1816_unlock(ad1816);
return src;
}
static kobj_method_t ad1816mixer_methods[] = {
KOBJMETHOD(mixer_init, ad1816mix_init),
KOBJMETHOD(mixer_set, ad1816mix_set),
KOBJMETHOD(mixer_setrecsrc, ad1816mix_setrecsrc),
{ 0, 0 }
};
MIXER_DECLARE(ad1816mixer);
/* -------------------------------------------------------------------- */
/* channel interface */
static void *
ad1816chan_init(kobj_t obj, void *devinfo, struct snd_dbuf *b, struct 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;
if (sndbuf_alloc(ch->buffer, ad1816->parent_dmat, ad1816->bufsize) == -1) return NULL;
return ch;
}
static int
ad1816chan_setdir(kobj_t obj, void *data, int dir)
{
struct ad1816_chinfo *ch = data;
struct ad1816_info *ad1816 = ch->parent;
sndbuf_isadmasetup(ch->buffer, (dir == PCMDIR_PLAY)? ad1816->drq1 : ad1816->drq2);
ch->dir = dir;
return 0;
}
static int
ad1816chan_setformat(kobj_t obj, void *data, u_int32_t format)
{
struct ad1816_chinfo *ch = data;
struct ad1816_info *ad1816 = ch->parent;
int fmt = AD1816_U8, reg;
ad1816_lock(ad1816);
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);
ad1816_unlock(ad1816);
return format;
}
static int
ad1816chan_setspeed(kobj_t obj, void *data, u_int32_t speed)
{
struct ad1816_chinfo *ch = data;
struct ad1816_info *ad1816 = ch->parent;
RANGE(speed, 4000, 55200);
ad1816_lock(ad1816);
ad1816_write(ad1816, (ch->dir == PCMDIR_PLAY)? 2 : 3, speed);
ad1816_unlock(ad1816);
return speed;
}
static int
ad1816chan_setblocksize(kobj_t obj, void *data, u_int32_t blocksize)
{
struct ad1816_chinfo *ch = data;
ch->blksz = blocksize;
return ch->blksz;
}
static int
ad1816chan_trigger(kobj_t obj, void *data, int go)
{
struct ad1816_chinfo *ch = data;
struct ad1816_info *ad1816 = ch->parent;
int wr, reg;
if (go == PCMTRIG_EMLDMAWR || go == PCMTRIG_EMLDMARD)
return 0;
sndbuf_isadma(ch->buffer, go);
wr = (ch->dir == PCMDIR_PLAY);
reg = wr? AD1816_PLAY : AD1816_CAPT;
ad1816_lock(ad1816);
switch (go) {
case PCMTRIG_START:
/* start only if not already running */
if (!(io_rd(ad1816, reg) & AD1816_ENABLE)) {
int cnt = ((ch->blksz) >> 2) - 1;
ad1816_write(ad1816, wr? 8 : 10, cnt); /* count */
ad1816_write(ad1816, wr? 9 : 11, 0); /* reset cur cnt */
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;
}
ad1816_unlock(ad1816);
return 0;
}
static int
ad1816chan_getptr(kobj_t obj, void *data)
{
struct ad1816_chinfo *ch = data;
return sndbuf_isadmaptr(ch->buffer);
}
static struct pcmchan_caps *
ad1816chan_getcaps(kobj_t obj, void *data)
{
return &ad1816_caps;
}
static kobj_method_t ad1816chan_methods[] = {
KOBJMETHOD(channel_init, ad1816chan_init),
KOBJMETHOD(channel_setdir, ad1816chan_setdir),
KOBJMETHOD(channel_setformat, ad1816chan_setformat),
KOBJMETHOD(channel_setspeed, ad1816chan_setspeed),
KOBJMETHOD(channel_setblocksize, ad1816chan_setblocksize),
KOBJMETHOD(channel_trigger, ad1816chan_trigger),
KOBJMETHOD(channel_getptr, ad1816chan_getptr),
KOBJMETHOD(channel_getcaps, ad1816chan_getcaps),
{ 0, 0 }
};
CHANNEL_DECLARE(ad1816chan);
/* -------------------------------------------------------------------- */
static void
ad1816_release_resources(struct ad1816_info *ad1816, device_t dev)
{
if (ad1816->irq) {
if (ad1816->ih)
bus_teardown_intr(dev, ad1816->irq, ad1816->ih);
bus_release_resource(dev, SYS_RES_IRQ, ad1816->irq_rid, ad1816->irq);
ad1816->irq = 0;
}
if (ad1816->drq1) {
isa_dma_release(rman_get_start(ad1816->drq1));
bus_release_resource(dev, SYS_RES_DRQ, ad1816->drq1_rid, ad1816->drq1);
ad1816->drq1 = 0;
}
if (ad1816->drq2) {
isa_dma_release(rman_get_start(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;
}
if (ad1816->parent_dmat) {
bus_dma_tag_destroy(ad1816->parent_dmat);
ad1816->parent_dmat = 0;
}
if (ad1816->lock)
snd_mtxfree(ad1816->lock);
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)
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 (ok) {
pdma = rman_get_start(ad1816->drq1);
isa_dma_acquire(pdma);
isa_dmainit(pdma, ad1816->bufsize);
if (ad1816->drq2) {
rdma = rman_get_start(ad1816->drq2);
isa_dma_acquire(rdma);
isa_dmainit(rdma, ad1816->bufsize);
} 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 = "AD1816";
break;
}
if (s) {
device_set_desc(dev, s);
return 0;
}
return ENXIO;
}
static int
ad1816_attach(device_t dev)
{
struct ad1816_info *ad1816;
char status[SND_STATUSLEN], status2[SND_STATUSLEN];
ad1816 = (struct ad1816_info *)malloc(sizeof *ad1816, M_DEVBUF, M_NOWAIT | M_ZERO);
if (!ad1816) return ENXIO;
ad1816->lock = snd_mtxcreate(device_get_nameunit(dev), "sound softc");
ad1816->io_rid = 2;
ad1816->irq_rid = 0;
ad1816->drq1_rid = 0;
ad1816->drq2_rid = 1;
ad1816->bufsize = pcm_getbuffersize(dev, 4096, DSP_BUFFSIZE, 65536);
if (!ad1816_alloc_resources(ad1816, dev)) goto no;
ad1816_init(ad1816, dev);
if (mixer_init(dev, &ad1816mixer_class, ad1816)) goto no;
snd_setup_intr(dev, ad1816->irq, INTR_MPSAFE, ad1816_intr, ad1816, &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*/ad1816->bufsize, /*nsegments*/1,
/*maxsegz*/0x3ffff,
/*flags*/0, &ad1816->parent_dmat) != 0) {
device_printf(dev, "unable to create dma tag\n");
goto no;
}
if (ad1816->drq2)
snprintf(status2, SND_STATUSLEN, ":%ld", rman_get_start(ad1816->drq2));
else
status2[0] = '\0';
snprintf(status, SND_STATUSLEN, "at io 0x%lx irq %ld drq %ld%s bufsz %u",
rman_get_start(ad1816->io_base),
rman_get_start(ad1816->irq),
rman_get_start(ad1816->drq1),
status2,
ad1816->bufsize);
if (pcm_register(dev, ad1816, 1, 1)) goto no;
pcm_addchan(dev, PCMDIR_REC, &ad1816chan_class, ad1816);
pcm_addchan(dev, PCMDIR_PLAY, &ad1816chan_class, ad1816);
pcm_setstatus(dev, status);
return 0;
no:
ad1816_release_resources(ad1816, dev);
return ENXIO;
}
static int
ad1816_detach(device_t dev)
{
int r;
struct ad1816_info *ad1816;
r = pcm_unregister(dev);
if (r)
return r;
ad1816 = pcm_getdevinfo(dev);
ad1816_release_resources(ad1816, dev);
return 0;
}
static device_method_t ad1816_methods[] = {
/* Device interface */
DEVMETHOD(device_probe, ad1816_probe),
DEVMETHOD(device_attach, ad1816_attach),
DEVMETHOD(device_detach, ad1816_detach),
{ 0, 0 }
};
static driver_t ad1816_driver = {
"pcm",
ad1816_methods,
PCM_SOFTC_SIZE,
};
DRIVER_MODULE(snd_ad1816, isa, ad1816_driver, pcm_devclass, 0, 0);
MODULE_DEPEND(snd_ad1816, snd_pcm, PCM_MINVER, PCM_PREFVER, PCM_MAXVER);
MODULE_VERSION(snd_ad1816, 1);
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