FreeBSD-5.3/sys/dev/sound/isa/sb8.c
/*
* Copyright (c) 1999 Cameron Grant <cg@freebsd.org>
* Copyright 1997,1998 Luigi Rizzo.
*
* Derived from files in the Voxware 3.5 distribution,
* Copyright by Hannu Savolainen 1994, under the same copyright
* conditions.
* 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/sb.h>
#include <dev/sound/chip.h>
#include <isa/isavar.h>
#include "mixer_if.h"
SND_DECLARE_FILE("$FreeBSD: src/sys/dev/sound/isa/sb8.c,v 1.77 2004/07/16 03:59:54 tanimura Exp $");
#define SB_DEFAULT_BUFSZ 4096
static u_int32_t sb_fmt[] = {
AFMT_U8,
0
};
static struct pcmchan_caps sb200_playcaps = {4000, 23000, sb_fmt, 0};
static struct pcmchan_caps sb200_reccaps = {4000, 13000, sb_fmt, 0};
static struct pcmchan_caps sb201_playcaps = {4000, 44100, sb_fmt, 0};
static struct pcmchan_caps sb201_reccaps = {4000, 15000, sb_fmt, 0};
static u_int32_t sbpro_fmt[] = {
AFMT_U8,
AFMT_STEREO | AFMT_U8,
0
};
static struct pcmchan_caps sbpro_playcaps = {4000, 44100, sbpro_fmt, 0};
static struct pcmchan_caps sbpro_reccaps = {4000, 44100, sbpro_fmt, 0};
struct sb_info;
struct sb_chinfo {
struct sb_info *parent;
struct pcm_channel *channel;
struct snd_dbuf *buffer;
int dir;
u_int32_t fmt, spd, blksz;
};
struct sb_info {
device_t parent_dev;
struct resource *io_base; /* I/O address for the board */
struct resource *irq;
struct resource *drq;
void *ih;
bus_dma_tag_t parent_dmat;
unsigned int bufsize;
int bd_id;
u_long bd_flags; /* board-specific flags */
struct sb_chinfo pch, rch;
};
static int sb_rd(struct sb_info *sb, int reg);
static void sb_wr(struct sb_info *sb, int reg, u_int8_t val);
static int sb_dspready(struct sb_info *sb);
static int sb_cmd(struct sb_info *sb, u_char val);
static int sb_cmd1(struct sb_info *sb, u_char cmd, int val);
static int sb_cmd2(struct sb_info *sb, u_char cmd, int val);
static u_int sb_get_byte(struct sb_info *sb);
static void sb_setmixer(struct sb_info *sb, u_int port, u_int value);
static int sb_getmixer(struct sb_info *sb, u_int port);
static int sb_reset_dsp(struct sb_info *sb);
static void sb_intr(void *arg);
static int sb_speed(struct sb_chinfo *ch);
static int sb_start(struct sb_chinfo *ch);
static int sb_stop(struct sb_chinfo *ch);
/*
* Common code for the midi and pcm functions
*
* sb_cmd write a single byte to the CMD port.
* sb_cmd1 write a CMD + 1 byte arg
* sb_cmd2 write a CMD + 2 byte arg
* sb_get_byte returns a single byte from the DSP data port
*/
static void
sb_lock(struct sb_info *sb) {
sbc_lock(device_get_softc(sb->parent_dev));
}
static void
sb_unlock(struct sb_info *sb) {
sbc_unlock(device_get_softc(sb->parent_dev));
}
static int
port_rd(struct resource *port, int off)
{
return bus_space_read_1(rman_get_bustag(port), rman_get_bushandle(port), off);
}
static void
port_wr(struct resource *port, int off, u_int8_t data)
{
bus_space_write_1(rman_get_bustag(port), rman_get_bushandle(port), off, data);
}
static int
sb_rd(struct sb_info *sb, int reg)
{
return port_rd(sb->io_base, reg);
}
static void
sb_wr(struct sb_info *sb, int reg, u_int8_t val)
{
port_wr(sb->io_base, reg, val);
}
static int
sb_dspready(struct sb_info *sb)
{
return ((sb_rd(sb, SBDSP_STATUS) & 0x80) == 0);
}
static int
sb_dspwr(struct sb_info *sb, u_char val)
{
int i;
for (i = 0; i < 1000; i++) {
if (sb_dspready(sb)) {
sb_wr(sb, SBDSP_CMD, val);
return 1;
}
if (i > 10) DELAY((i > 100)? 1000 : 10);
}
printf("sb_dspwr(0x%02x) timed out.\n", val);
return 0;
}
static int
sb_cmd(struct sb_info *sb, u_char val)
{
#if 0
printf("sb_cmd: %x\n", val);
#endif
return sb_dspwr(sb, val);
}
static int
sb_cmd1(struct sb_info *sb, u_char cmd, int val)
{
#if 0
printf("sb_cmd1: %x, %x\n", cmd, val);
#endif
if (sb_dspwr(sb, cmd)) {
return sb_dspwr(sb, val & 0xff);
} else return 0;
}
static int
sb_cmd2(struct sb_info *sb, u_char cmd, int val)
{
#if 0
printf("sb_cmd2: %x, %x\n", cmd, val);
#endif
if (sb_dspwr(sb, cmd)) {
return sb_dspwr(sb, val & 0xff) &&
sb_dspwr(sb, (val >> 8) & 0xff);
} else return 0;
}
/*
* in the SB, there is a set of indirect "mixer" registers with
* address at offset 4, data at offset 5
*
* we don't need to interlock these, the mixer lock will suffice.
*/
static void
sb_setmixer(struct sb_info *sb, u_int port, u_int value)
{
sb_wr(sb, SB_MIX_ADDR, (u_char) (port & 0xff)); /* Select register */
DELAY(10);
sb_wr(sb, SB_MIX_DATA, (u_char) (value & 0xff));
DELAY(10);
}
static int
sb_getmixer(struct sb_info *sb, u_int port)
{
int val;
sb_wr(sb, SB_MIX_ADDR, (u_char) (port & 0xff)); /* Select register */
DELAY(10);
val = sb_rd(sb, SB_MIX_DATA);
DELAY(10);
return val;
}
static u_int
sb_get_byte(struct sb_info *sb)
{
int i;
for (i = 1000; i > 0; i--) {
if (sb_rd(sb, DSP_DATA_AVAIL) & 0x80)
return sb_rd(sb, DSP_READ);
else
DELAY(20);
}
return 0xffff;
}
static int
sb_reset_dsp(struct sb_info *sb)
{
sb_wr(sb, SBDSP_RST, 3);
DELAY(100);
sb_wr(sb, SBDSP_RST, 0);
if (sb_get_byte(sb) != 0xAA) {
DEB(printf("sb_reset_dsp 0x%lx failed\n",
rman_get_start(sb->io_base)));
return ENXIO; /* Sorry */
}
return 0;
}
static void
sb_release_resources(struct sb_info *sb, device_t dev)
{
if (sb->irq) {
if (sb->ih)
bus_teardown_intr(dev, sb->irq, sb->ih);
bus_release_resource(dev, SYS_RES_IRQ, 0, sb->irq);
sb->irq = 0;
}
if (sb->drq) {
isa_dma_release(rman_get_start(sb->drq));
bus_release_resource(dev, SYS_RES_DRQ, 0, sb->drq);
sb->drq = 0;
}
if (sb->io_base) {
bus_release_resource(dev, SYS_RES_IOPORT, 0, sb->io_base);
sb->io_base = 0;
}
if (sb->parent_dmat) {
bus_dma_tag_destroy(sb->parent_dmat);
sb->parent_dmat = 0;
}
free(sb, M_DEVBUF);
}
static int
sb_alloc_resources(struct sb_info *sb, device_t dev)
{
int rid;
rid = 0;
if (!sb->io_base)
sb->io_base = bus_alloc_resource_any(dev, SYS_RES_IOPORT,
&rid, RF_ACTIVE);
rid = 0;
if (!sb->irq)
sb->irq = bus_alloc_resource_any(dev, SYS_RES_IRQ,
&rid, RF_ACTIVE);
rid = 0;
if (!sb->drq)
sb->drq = bus_alloc_resource_any(dev, SYS_RES_DRQ,
&rid, RF_ACTIVE);
if (sb->io_base && sb->drq && sb->irq) {
isa_dma_acquire(rman_get_start(sb->drq));
isa_dmainit(rman_get_start(sb->drq), sb->bufsize);
return 0;
} else return ENXIO;
}
/************************************************************/
static int
sbpromix_init(struct snd_mixer *m)
{
struct sb_info *sb = mix_getdevinfo(m);
mix_setdevs(m, SOUND_MASK_SYNTH | SOUND_MASK_PCM | SOUND_MASK_LINE |
SOUND_MASK_MIC | SOUND_MASK_CD | SOUND_MASK_VOLUME);
mix_setrecdevs(m, SOUND_MASK_LINE | SOUND_MASK_MIC | SOUND_MASK_CD);
sb_setmixer(sb, 0, 1); /* reset mixer */
return 0;
}
static int
sbpromix_set(struct snd_mixer *m, unsigned dev, unsigned left, unsigned right)
{
struct sb_info *sb = mix_getdevinfo(m);
int reg, max;
u_char val;
max = 7;
switch (dev) {
case SOUND_MIXER_PCM:
reg = 0x04;
break;
case SOUND_MIXER_MIC:
reg = 0x0a;
max = 3;
break;
case SOUND_MIXER_VOLUME:
reg = 0x22;
break;
case SOUND_MIXER_SYNTH:
reg = 0x26;
break;
case SOUND_MIXER_CD:
reg = 0x28;
break;
case SOUND_MIXER_LINE:
reg = 0x2e;
break;
default:
return -1;
}
left = (left * max) / 100;
right = (dev == SOUND_MIXER_MIC)? left : ((right * max) / 100);
val = (dev == SOUND_MIXER_MIC)? (left << 1) : (left << 5 | right << 1);
sb_setmixer(sb, reg, val);
left = (left * 100) / max;
right = (right * 100) / max;
return left | (right << 8);
}
static int
sbpromix_setrecsrc(struct snd_mixer *m, u_int32_t src)
{
struct sb_info *sb = mix_getdevinfo(m);
u_char recdev;
if (src == SOUND_MASK_LINE)
recdev = 0x06;
else if (src == SOUND_MASK_CD)
recdev = 0x02;
else { /* default: mic */
src = SOUND_MASK_MIC;
recdev = 0;
}
sb_setmixer(sb, RECORD_SRC, recdev | (sb_getmixer(sb, RECORD_SRC) & ~0x07));
return src;
}
static kobj_method_t sbpromix_mixer_methods[] = {
KOBJMETHOD(mixer_init, sbpromix_init),
KOBJMETHOD(mixer_set, sbpromix_set),
KOBJMETHOD(mixer_setrecsrc, sbpromix_setrecsrc),
{ 0, 0 }
};
MIXER_DECLARE(sbpromix_mixer);
/************************************************************/
static int
sbmix_init(struct snd_mixer *m)
{
struct sb_info *sb = mix_getdevinfo(m);
mix_setdevs(m, SOUND_MASK_SYNTH | SOUND_MASK_PCM | SOUND_MASK_CD | SOUND_MASK_VOLUME);
mix_setrecdevs(m, 0);
sb_setmixer(sb, 0, 1); /* reset mixer */
return 0;
}
static int
sbmix_set(struct snd_mixer *m, unsigned dev, unsigned left, unsigned right)
{
struct sb_info *sb = mix_getdevinfo(m);
int reg, max;
max = 7;
switch (dev) {
case SOUND_MIXER_VOLUME:
reg = 0x2;
break;
case SOUND_MIXER_SYNTH:
reg = 0x6;
break;
case SOUND_MIXER_CD:
reg = 0x8;
break;
case SOUND_MIXER_PCM:
reg = 0x0a;
max = 3;
break;
default:
return -1;
}
left = (left * max) / 100;
sb_setmixer(sb, reg, left << 1);
left = (left * 100) / max;
return left | (left << 8);
}
static int
sbmix_setrecsrc(struct snd_mixer *m, u_int32_t src)
{
return 0;
}
static kobj_method_t sbmix_mixer_methods[] = {
KOBJMETHOD(mixer_init, sbmix_init),
KOBJMETHOD(mixer_set, sbmix_set),
KOBJMETHOD(mixer_setrecsrc, sbmix_setrecsrc),
{ 0, 0 }
};
MIXER_DECLARE(sbmix_mixer);
/************************************************************/
static void
sb_intr(void *arg)
{
struct sb_info *sb = (struct sb_info *)arg;
sb_lock(sb);
if (sndbuf_runsz(sb->pch.buffer) > 0)
chn_intr(sb->pch.channel);
if (sndbuf_runsz(sb->rch.buffer) > 0)
chn_intr(sb->rch.channel);
sb_rd(sb, DSP_DATA_AVAIL); /* int ack */
sb_unlock(sb);
}
static int
sb_speed(struct sb_chinfo *ch)
{
struct sb_info *sb = ch->parent;
int play = (ch->dir == PCMDIR_PLAY)? 1 : 0;
int stereo = (ch->fmt & AFMT_STEREO)? 1 : 0;
int speed, tmp, thresh, max;
u_char tconst;
if (sb->bd_id >= 0x300) {
thresh = stereo? 11025 : 23000;
max = stereo? 22050 : 44100;
} else if (sb->bd_id > 0x200) {
thresh = play? 23000 : 13000;
max = play? 44100 : 15000;
} else {
thresh = 999999;
max = play? 23000 : 13000;
}
speed = ch->spd;
if (speed > max)
speed = max;
sb_lock(sb);
sb->bd_flags &= ~BD_F_HISPEED;
if (speed > thresh)
sb->bd_flags |= BD_F_HISPEED;
tmp = 65536 - (256000000 / (speed << stereo));
tconst = tmp >> 8;
sb_cmd1(sb, 0x40, tconst); /* set time constant */
speed = (256000000 / (65536 - tmp)) >> stereo;
ch->spd = speed;
sb_unlock(sb);
return speed;
}
static int
sb_start(struct sb_chinfo *ch)
{
struct sb_info *sb = ch->parent;
int play = (ch->dir == PCMDIR_PLAY)? 1 : 0;
int stereo = (ch->fmt & AFMT_STEREO)? 1 : 0;
int l = ch->blksz;
u_char i;
l--;
sb_lock(sb);
if (play)
sb_cmd(sb, DSP_CMD_SPKON);
if (sb->bd_flags & BD_F_HISPEED)
i = play? 0x90 : 0x98;
else
i = play? 0x1c : 0x2c;
sb_setmixer(sb, 0x0e, stereo? 2 : 0);
sb_cmd2(sb, 0x48, l);
sb_cmd(sb, i);
sb->bd_flags |= BD_F_DMARUN;
sb_unlock(sb);
return 0;
}
static int
sb_stop(struct sb_chinfo *ch)
{
struct sb_info *sb = ch->parent;
int play = (ch->dir == PCMDIR_PLAY)? 1 : 0;
sb_lock(sb);
if (sb->bd_flags & BD_F_HISPEED)
sb_reset_dsp(sb);
else
sb_cmd(sb, DSP_CMD_DMAEXIT_8);
if (play)
sb_cmd(sb, DSP_CMD_SPKOFF); /* speaker off */
sb_unlock(sb);
sb->bd_flags &= ~BD_F_DMARUN;
return 0;
}
/* channel interface */
static void *
sbchan_init(kobj_t obj, void *devinfo, struct snd_dbuf *b, struct pcm_channel *c, int dir)
{
struct sb_info *sb = devinfo;
struct sb_chinfo *ch = (dir == PCMDIR_PLAY)? &sb->pch : &sb->rch;
ch->parent = sb;
ch->channel = c;
ch->dir = dir;
ch->buffer = b;
if (sndbuf_alloc(ch->buffer, sb->parent_dmat, sb->bufsize) == -1)
return NULL;
sndbuf_dmasetup(ch->buffer, sb->drq);
return ch;
}
static int
sbchan_setformat(kobj_t obj, void *data, u_int32_t format)
{
struct sb_chinfo *ch = data;
ch->fmt = format;
return 0;
}
static int
sbchan_setspeed(kobj_t obj, void *data, u_int32_t speed)
{
struct sb_chinfo *ch = data;
ch->spd = speed;
return sb_speed(ch);
}
static int
sbchan_setblocksize(kobj_t obj, void *data, u_int32_t blocksize)
{
struct sb_chinfo *ch = data;
ch->blksz = blocksize;
return ch->blksz;
}
static int
sbchan_trigger(kobj_t obj, void *data, int go)
{
struct sb_chinfo *ch = data;
if (go == PCMTRIG_EMLDMAWR || go == PCMTRIG_EMLDMARD)
return 0;
sndbuf_dma(ch->buffer, go);
if (go == PCMTRIG_START)
sb_start(ch);
else
sb_stop(ch);
return 0;
}
static int
sbchan_getptr(kobj_t obj, void *data)
{
struct sb_chinfo *ch = data;
return sndbuf_dmaptr(ch->buffer);
}
static struct pcmchan_caps *
sbchan_getcaps(kobj_t obj, void *data)
{
struct sb_chinfo *ch = data;
int p = (ch->dir == PCMDIR_PLAY)? 1 : 0;
if (ch->parent->bd_id == 0x200)
return p? &sb200_playcaps : &sb200_reccaps;
if (ch->parent->bd_id < 0x300)
return p? &sb201_playcaps : &sb201_reccaps;
return p? &sbpro_playcaps : &sbpro_reccaps;
}
static kobj_method_t sbchan_methods[] = {
KOBJMETHOD(channel_init, sbchan_init),
KOBJMETHOD(channel_setformat, sbchan_setformat),
KOBJMETHOD(channel_setspeed, sbchan_setspeed),
KOBJMETHOD(channel_setblocksize, sbchan_setblocksize),
KOBJMETHOD(channel_trigger, sbchan_trigger),
KOBJMETHOD(channel_getptr, sbchan_getptr),
KOBJMETHOD(channel_getcaps, sbchan_getcaps),
{ 0, 0 }
};
CHANNEL_DECLARE(sbchan);
/************************************************************/
static int
sb_probe(device_t dev)
{
char buf[64];
uintptr_t func, ver, r, f;
/* The parent device has already been probed. */
r = BUS_READ_IVAR(device_get_parent(dev), dev, 0, &func);
if (func != SCF_PCM)
return (ENXIO);
r = BUS_READ_IVAR(device_get_parent(dev), dev, 1, &ver);
f = (ver & 0xffff0000) >> 16;
ver &= 0x0000ffff;
if ((f & BD_F_ESS) || (ver >= 0x400))
return (ENXIO);
snprintf(buf, sizeof buf, "SB DSP %d.%02d", (int) ver >> 8, (int) ver & 0xff);
device_set_desc_copy(dev, buf);
return 0;
}
static int
sb_attach(device_t dev)
{
struct sb_info *sb;
char status[SND_STATUSLEN];
uintptr_t ver;
sb = (struct sb_info *)malloc(sizeof *sb, M_DEVBUF, M_NOWAIT | M_ZERO);
if (!sb)
return ENXIO;
sb->parent_dev = device_get_parent(dev);
BUS_READ_IVAR(device_get_parent(dev), dev, 1, &ver);
sb->bd_id = ver & 0x0000ffff;
sb->bd_flags = (ver & 0xffff0000) >> 16;
sb->bufsize = pcm_getbuffersize(dev, 4096, SB_DEFAULT_BUFSZ, 65536);
if (sb_alloc_resources(sb, dev))
goto no;
if (sb_reset_dsp(sb))
goto no;
if (mixer_init(dev, (sb->bd_id < 0x300)? &sbmix_mixer_class : &sbpromix_mixer_class, sb))
goto no;
if (snd_setup_intr(dev, sb->irq, 0, sb_intr, sb, &sb->ih))
goto no;
pcm_setflags(dev, pcm_getflags(dev) | SD_F_SIMPLEX);
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*/sb->bufsize, /*nsegments*/1,
/*maxsegz*/0x3ffff, /*flags*/0,
/*lockfunc*/busdma_lock_mutex, /*lockarg*/&Giant,
&sb->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 bufsz %u %s",
rman_get_start(sb->io_base), rman_get_start(sb->irq),
rman_get_start(sb->drq), sb->bufsize, PCM_KLDSTRING(snd_sb8));
if (pcm_register(dev, sb, 1, 1))
goto no;
pcm_addchan(dev, PCMDIR_REC, &sbchan_class, sb);
pcm_addchan(dev, PCMDIR_PLAY, &sbchan_class, sb);
pcm_setstatus(dev, status);
return 0;
no:
sb_release_resources(sb, dev);
return ENXIO;
}
static int
sb_detach(device_t dev)
{
int r;
struct sb_info *sb;
r = pcm_unregister(dev);
if (r)
return r;
sb = pcm_getdevinfo(dev);
sb_release_resources(sb, dev);
return 0;
}
static device_method_t sb_methods[] = {
/* Device interface */
DEVMETHOD(device_probe, sb_probe),
DEVMETHOD(device_attach, sb_attach),
DEVMETHOD(device_detach, sb_detach),
{ 0, 0 }
};
static driver_t sb_driver = {
"pcm",
sb_methods,
PCM_SOFTC_SIZE,
};
DRIVER_MODULE(snd_sb8, sbc, sb_driver, pcm_devclass, 0, 0);
MODULE_DEPEND(snd_sb8, sound, SOUND_MINVER, SOUND_PREFVER, SOUND_MAXVER);
MODULE_DEPEND(snd_sb8, snd_sbc, 1, 1, 1);
MODULE_VERSION(snd_sb8, 1);