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13e84a71e0
freebsd/sys/dev/sound/isa/ad1816.c
Brian Feldman 8fb9a995cf The newpcm headers currently #define away INTR_MPSAFE and INTR_TYPE_AV 
because they bogusly check for defined(INTR_MPSAFE) -- something which
never was a #define.  Correct the definitions.

This make INTR_TYPE_AV finally get used instead of the lower-priority
INTR_TYPE_TTY, so it's quite possible some improvement will be had
on sound driver performance.  It would also make all the drivers
marked INTR_MPSAFE actually run without Giant (which does seem to
work for me), but:
	INTR_MPSAFE HAS BEEN REMOVED FROM EVERY SOUND DRIVER!
It needs to be re-added on a case-by-case basis since there is no one
who will vouch for which sound drivers, if any, willy actually operate
correctly without Giant, since there hasn't been testing because of
this bug disabling INTR_MPSAFE.

Found by:	"Yuriy Tsibizov" <Yuriy.Tsibizov@gfk.ru>
2004-04-14 14:57:49 +00:00

680 lines
18 KiB
C
Raw Blame History

/*
* Copyright (c) 1999 Cameron Grant <cg@freebsd.org>
* 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 <isa/isavar.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;
struct mtx *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)
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)
{
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_dmasetup(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);
#if 0
return format;
#else
return 0;
#endif
}
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_dma(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_dmaptr(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_any(dev,
SYS_RES_IOPORT, &ad1816->io_rid, RF_ACTIVE);
if (!ad1816->irq)
ad1816->irq = bus_alloc_resource_any(dev, SYS_RES_IRQ,
&ad1816->irq_rid, RF_ACTIVE);
if (!ad1816->drq1)
ad1816->drq1 = bus_alloc_resource_any(dev, SYS_RES_DRQ,
&ad1816->drq1_rid, RF_ACTIVE);
if (!ad1816->drq2)
ad1816->drq2 = bus_alloc_resource_any(dev, SYS_RES_DRQ,
&ad1816->drq2_rid, 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, 0, 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, /*lockfunc*/busdma_lock_mutex,
/*lockarg*/ &Giant, &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 %s",
rman_get_start(ad1816->io_base),
rman_get_start(ad1816->irq),
rman_get_start(ad1816->drq1),
status2,
ad1816->bufsize,
PCM_KLDSTRING(snd_ad1816));
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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