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freebsd-dev/sys/dev/sound/isa/sb.c
Doug Rabson 62c631ed7f * Ignore the wierd fakechan workarounds for simplex in dsp_ioctl(). 
Without this, ioctl commands for setting formats and speeds were
  essentially ignored for simplex devices until the application actually
  performed a read or write.
* Make sure that both channels are set in the SB mixer code and provide a
  mixer table specifically for the ess18xx which supports the extended
  accuracy available on this part.
* Fix a stupid bug in ess_format() which ignored the passed-in format and
  changed the hardware based on the value which was set last time. This
  meant that the hardware setting was often not set correctly at all.
* Add a custom identify driver for the ESS1888 which automagically detects
  and adds the device in a pseudo-PnP way. This driver also emits the magic
  sequence which enables the sound hardware after a hard reset, allowing
  it to work correctly for the sound hardware of a PWS 433au (and probably
  all other PWS class alpha machines).

With these changes, I was able to play back simple sounds on my 433au. I
have not tested recording or any other formats other than 8bit ulaw and
16bit stereo.
1999-11-13 18:31:31 +00:00

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/*
* Copyright (c) 1999 Cameron Grant <gandalf@vilnya.demon.co.uk>
* 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.
*
* $FreeBSD$
*/
#include <dev/pcm/sound.h>
#if NPCM > 0
#define __SB_MIXER_C__ /* XXX warning... */
#include <dev/pcm/isa/sb.h>
/* channel interface */
static void *sbchan_init(void *devinfo, snd_dbuf *b, pcm_channel *c, int dir);
static int sbchan_setdir(void *data, int dir);
static int sbchan_setformat(void *data, u_int32_t format);
static int sbchan_setspeed(void *data, u_int32_t speed);
static int sbchan_setblocksize(void *data, u_int32_t blocksize);
static int sbchan_trigger(void *data, int go);
static int sbchan_getptr(void *data);
static pcmchan_caps *sbchan_getcaps(void *data);
/* channel interface for ESS */
#ifdef notyet
static void *esschan_init(void *devinfo, snd_dbuf *b, pcm_channel *c, int dir);
#endif
static int esschan_setdir(void *data, int dir);
static int esschan_setformat(void *data, u_int32_t format);
static int esschan_setspeed(void *data, u_int32_t speed);
static int esschan_setblocksize(void *data, u_int32_t blocksize);
static int esschan_trigger(void *data, int go);
static int esschan_getptr(void *data);
static pcmchan_caps *esschan_getcaps(void *data);
static pcmchan_caps sb_playcaps = {
4000, 22050,
AFMT_U8,
AFMT_U8
};
static pcmchan_caps sb_reccaps = {
4000, 13000,
AFMT_U8,
AFMT_U8
};
static pcmchan_caps sbpro_playcaps = {
4000, 45000,
AFMT_STEREO | AFMT_U8,
AFMT_STEREO | AFMT_U8
};
static pcmchan_caps sbpro_reccaps = {
4000, 15000,
AFMT_STEREO | AFMT_U8,
AFMT_STEREO | AFMT_U8
};
static pcmchan_caps sb16_playcaps = {
5000, 45000,
AFMT_STEREO | AFMT_S16_LE,
AFMT_STEREO | AFMT_S16_LE
};
static pcmchan_caps sb16_reccaps = {
5000, 45000,
AFMT_STEREO | AFMT_U8,
AFMT_STEREO | AFMT_U8
};
static pcmchan_caps ess_playcaps = {
5000, 49000,
AFMT_STEREO | AFMT_U8 | AFMT_S16_LE,
AFMT_STEREO | AFMT_S16_LE
};
static pcmchan_caps ess_reccaps = {
5000, 49000,
AFMT_STEREO | AFMT_U8 | AFMT_S16_LE,
AFMT_STEREO | AFMT_S16_LE
};
static pcm_channel sb_chantemplate = {
sbchan_init,
sbchan_setdir,
sbchan_setformat,
sbchan_setspeed,
sbchan_setblocksize,
sbchan_trigger,
sbchan_getptr,
sbchan_getcaps,
};
static pcm_channel ess_chantemplate = {
sbchan_init,
esschan_setdir,
esschan_setformat,
esschan_setspeed,
esschan_setblocksize,
esschan_trigger,
esschan_getptr,
esschan_getcaps,
};
#define PLAIN_SB16(x) ((((x)->bd_flags) & (BD_F_SB16|BD_F_SB16X)) == BD_F_SB16)
struct sb_info;
struct sb_chinfo {
struct sb_info *parent;
pcm_channel *channel;
snd_dbuf *buffer;
int dir;
u_int32_t fmt;
int ess_dma_started;
};
struct sb_info {
struct resource *io_base; /* 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;
int dma16, dma8;
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 int ess_write(struct sb_info *sb, u_char reg, int val);
static int ess_read(struct sb_info *sb, u_char reg);
/*
* in the SB, there is a set of indirect "mixer" registers with
* address at offset 4, data at offset 5
*/
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 void sb_intr(void *arg);
static void ess_intr(void *arg);
static int sb_init(device_t dev, struct sb_info *sb);
static int sb_reset_dsp(struct sb_info *sb);
static int sb_format(struct sb_chinfo *ch, u_int32_t format);
static int sb_speed(struct sb_chinfo *ch, int speed);
static int sb_start(struct sb_chinfo *ch);
static int sb_stop(struct sb_chinfo *ch);
static int ess_format(struct sb_chinfo *ch, u_int32_t format);
static int ess_speed(struct sb_chinfo *ch, int speed);
static int ess_start(struct sb_chinfo *ch);
static int ess_stop(struct sb_chinfo *ch);
static int ess_abort(struct sb_chinfo *ch);
static int sbmix_init(snd_mixer *m);
static int sbmix_set(snd_mixer *m, unsigned dev, unsigned left, unsigned right);
static int sbmix_setrecsrc(snd_mixer *m, u_int32_t src);
static snd_mixer sb_mixer = {
"SoundBlaster mixer",
sbmix_init,
sbmix_set,
sbmix_setrecsrc,
};
static devclass_t pcm_devclass;
/*
* 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
*
* ess_write is actually sb_cmd1
* ess_read access ext. regs via sb_cmd(0xc0, reg) followed by sb_get_byte
*/
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)
{
return 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
*/
static void
sb_setmixer(struct sb_info *sb, u_int port, u_int value)
{
u_long flags;
flags = spltty();
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);
splx(flags);
}
static int
sb_getmixer(struct sb_info *sb, u_int port)
{
int val;
u_long flags;
flags = spltty();
sb_wr(sb, SB_MIX_ADDR, (u_char) (port & 0xff)); /* Select register */
DELAY(10);
val = sb_rd(sb, SB_MIX_DATA);
DELAY(10);
splx(flags);
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
ess_write(struct sb_info *sb, u_char reg, int val)
{
return sb_cmd1(sb, reg, val);
}
static int
ess_read(struct sb_info *sb, u_char reg)
{
return (sb_cmd(sb, 0xc0) && sb_cmd(sb, reg))? sb_get_byte(sb) : 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(d->io_base)));
return ENXIO; /* Sorry */
}
if (sb->bd_flags & BD_F_ESS) sb_cmd(sb, 0xc6);
return 0;
}
static void
sb_release_resources(struct sb_info *sb, device_t dev)
{
/* should we bus_teardown_intr here? */
if (sb->irq) {
bus_release_resource(dev, SYS_RES_IRQ, sb->irq_rid, sb->irq);
sb->irq = 0;
}
if (sb->drq1) {
bus_release_resource(dev, SYS_RES_DRQ, sb->drq1_rid, sb->drq1);
sb->drq1 = 0;
}
if (sb->drq2) {
bus_release_resource(dev, SYS_RES_DRQ, sb->drq2_rid, sb->drq2);
sb->drq2 = 0;
}
if (sb->io_base) {
bus_release_resource(dev, SYS_RES_IOPORT, sb->io_rid,
sb->io_base);
sb->io_base = 0;
}
free(sb, M_DEVBUF);
}
static int
sb_alloc_resources(struct sb_info *sb, device_t dev)
{
if (!sb->io_base)
sb->io_base = bus_alloc_resource(dev, SYS_RES_IOPORT,
&sb->io_rid, 0, ~0, 1,
RF_ACTIVE);
if (!sb->irq)
sb->irq = bus_alloc_resource(dev, SYS_RES_IRQ,
&sb->irq_rid, 0, ~0, 1,
RF_ACTIVE);
if (!sb->drq1)
sb->drq1 = bus_alloc_resource(dev, SYS_RES_DRQ,
&sb->drq1_rid, 0, ~0, 1,
RF_ACTIVE);
if (!sb->drq2 && sb->drq2_rid > 0)
sb->drq2 = bus_alloc_resource(dev, SYS_RES_DRQ,
&sb->drq2_rid, 0, ~0, 1,
RF_ACTIVE);
if (sb->io_base && sb->drq1 && sb->irq) {
sb->dma8 = rman_get_start(sb->drq1);
isa_dma_acquire(sb->dma8);
isa_dmainit(sb->dma8, DSP_BUFFSIZE);
if (sb->drq2) {
sb->dma16 = rman_get_start(sb->drq2);
isa_dma_acquire(sb->dma16);
isa_dmainit(sb->dma16, DSP_BUFFSIZE);
} else sb->dma16 = sb->dma8;
if (sb->dma8 > sb->dma16) {
int tmp = sb->dma16;
sb->dma16 = sb->dma8;
sb->dma8 = tmp;
}
return 0;
} else return ENXIO;
}
static int
sb_identify_board(device_t dev, struct sb_info *sb)
{
char *fmt = NULL;
static char buf[64];
int essver = 0;
sb_cmd(sb, DSP_CMD_GETVER); /* Get version */
sb->bd_id = (sb_get_byte(sb) << 8) | sb_get_byte(sb);
switch (sb->bd_id >> 8) {
case 1: /* old sound blaster has nothing... */
case 2:
fmt = "SoundBlaster %d.%d" ; /* default */
break;
case 3:
fmt = "SoundBlaster Pro %d.%d";
if (sb->bd_id == 0x301) {
int rev;
/* Try to detect ESS chips. */
sb_cmd(sb, DSP_CMD_GETID); /* Return ident. bytes. */
essver = (sb_get_byte(sb) << 8) | sb_get_byte(sb);
rev = essver & 0x000f;
essver &= 0xfff0;
if (essver == 0x4880) {
/* the ESS488 can be treated as an SBPRO */
fmt = "SoundBlaster Pro (ESS488 rev %d)";
} else if (essver == 0x6880) {
if (rev < 8) fmt = "ESS688 rev %d";
else fmt = "ESS1868 rev %d";
sb->bd_flags |= BD_F_ESS;
} else return ENXIO;
sb->bd_id &= 0xff00;
sb->bd_id |= ((essver & 0xf000) >> 8) | rev;
}
break;
case 4:
sb->bd_flags |= BD_F_SB16;
if (sb->bd_flags & BD_F_SB16X) fmt = "SB16 ViBRA16X %d.%d";
else fmt = "SoundBlaster 16 %d.%d";
break;
default:
device_printf(dev, "failed to get SB version (%x)\n",
sb->bd_id);
return ENXIO;
}
if (essver) snprintf(buf, sizeof buf, fmt, sb->bd_id & 0x000f);
else snprintf(buf, sizeof buf, fmt, sb->bd_id >> 8, sb->bd_id & 0xff);
device_set_desc_copy(dev, buf);
return sb_reset_dsp(sb);
}
static int
sb_init(device_t dev, struct sb_info *sb)
{
int x, irq;
sb->bd_flags &= ~BD_F_MIX_MASK;
/* do various initializations depending on board id. */
switch (sb->bd_id >> 8) {
case 1: /* old sound blaster has nothing... */
break;
case 2:
sb->bd_flags |= BD_F_DUP_MIDI;
if (sb->bd_id > 0x200) sb->bd_flags |= BD_F_MIX_CT1335;
break;
case 3:
sb->bd_flags |= BD_F_DUP_MIDI | BD_F_MIX_CT1345;
break;
case 4:
sb->bd_flags |= BD_F_SB16 | BD_F_MIX_CT1745;
if (sb->dma16 != sb->dma8) sb->bd_flags |= BD_F_DUPLEX;
/* soft irq/dma configuration */
x = -1;
irq = rman_get_start(sb->irq);
if (irq == 5) x = 2;
else if (irq == 7) x = 4;
else if (irq == 9) x = 1;
else if (irq == 10) x = 8;
if (x == -1) device_printf(dev,
"bad irq %d (5/7/9/10 valid)\n",
irq);
else sb_setmixer(sb, IRQ_NR, x);
sb_setmixer(sb, DMA_NR, (1 << sb->dma16) | (1 << sb->dma8));
break;
}
return 0;
}
static int
sb_probe(device_t dev)
{
snddev_info *d = device_get_softc(dev);
struct sb_info *sb;
int allocated, i;
int error;
if (isa_get_vendorid(dev)) return ENXIO; /* not yet */
device_set_desc(dev, "SoundBlaster");
bzero(d, sizeof *d);
sb = (struct sb_info *)malloc(sizeof *sb, M_DEVBUF, M_NOWAIT);
if (!sb) return ENXIO;
bzero(sb, sizeof *sb);
allocated = 0;
sb->io_rid = 0;
sb->io_base = bus_alloc_resource(dev, SYS_RES_IOPORT, &sb->io_rid,
0, ~0, 16, RF_ACTIVE);
if (!sb->io_base) {
BVDDB(printf("sb_probe: no addr, trying (0x220, 0x240)\n"));
allocated = 1;
sb->io_rid = 0;
sb->io_base = bus_alloc_resource(dev, SYS_RES_IOPORT,
&sb->io_rid, 0x220, 0x22f,
16, RF_ACTIVE);
if (!sb->io_base) {
sb->io_base = bus_alloc_resource(dev, SYS_RES_IOPORT,
&sb->io_rid, 0x240,
0x24f, 16, RF_ACTIVE);
}
}
if (!sb->io_base) return ENXIO;
error = sb_reset_dsp(sb);
if (error) goto no;
error = sb_identify_board(dev, sb);
if (error) goto no;
no:
i = sb->io_rid;
sb_release_resources(sb, dev);
if (allocated) bus_delete_resource(dev, SYS_RES_IOPORT, i);
return error;
}
static int
sb_doattach(device_t dev, struct sb_info *sb)
{
snddev_info *d = device_get_softc(dev);
void *ih;
int error;
char status[SND_STATUSLEN];
sb->irq_rid = 0;
sb->drq1_rid = 0;
sb->drq2_rid = 1;
if (sb_alloc_resources(sb, dev)) goto no;
error = sb_reset_dsp(sb);
if (error) goto no;
error = sb_identify_board(dev, sb);
if (error) goto no;
sb_init(dev, sb);
mixer_init(d, &sb_mixer, sb);
if (sb->bd_flags & BD_F_ESS)
bus_setup_intr(dev, sb->irq, INTR_TYPE_TTY, ess_intr, sb, &ih);
else
bus_setup_intr(dev, sb->irq, INTR_TYPE_TTY, sb_intr, sb, &ih);
if (sb->bd_flags & BD_F_SB16)
pcm_setflags(dev, pcm_getflags(dev) | SD_F_EVILSB16);
if (sb->dma16 == sb->dma8)
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*/DSP_BUFFSIZE, /*nsegments*/1,
/*maxsegz*/0x3ffff,
/*flags*/0, &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 %d",
rman_get_start(sb->io_base), rman_get_start(sb->irq),
sb->dma8);
if (sb->dma16 != sb->dma8) snprintf(status + strlen(status),
SND_STATUSLEN - strlen(status), ":%d", sb->dma16);
if (pcm_register(dev, sb, 1, 1)) goto no;
if (sb->bd_flags & BD_F_ESS) {
pcm_addchan(dev, PCMDIR_REC, &ess_chantemplate, sb);
pcm_addchan(dev, PCMDIR_PLAY, &ess_chantemplate, sb);
} else {
pcm_addchan(dev, PCMDIR_REC, &sb_chantemplate, sb);
pcm_addchan(dev, PCMDIR_PLAY, &sb_chantemplate, sb);
}
pcm_setstatus(dev, status);
return 0;
no:
sb_release_resources(sb, dev);
return ENXIO;
}
static int
sb_attach(device_t dev)
{
struct sb_info *sb;
int flags = device_get_flags(dev);
if (flags & DV_F_DUAL_DMA) {
bus_set_resource(dev, SYS_RES_DRQ, 1,
flags & DV_F_DRQ_MASK, 1);
}
sb = (struct sb_info *)malloc(sizeof *sb, M_DEVBUF, M_NOWAIT);
if (!sb) return ENXIO;
bzero(sb, sizeof *sb);
/* XXX in probe should set io resource to right val instead of this */
sb->io_rid = 0;
sb->io_base = bus_alloc_resource(dev, SYS_RES_IOPORT, &sb->io_rid,
0, ~0, 16, RF_ACTIVE);
if (!sb->io_base) {
BVDDB(printf("sb_probe: no addr, trying (0x220, 0x240)\n"));
sb->io_rid = 0;
sb->io_base = bus_alloc_resource(dev, SYS_RES_IOPORT,
&sb->io_rid, 0x220, 0x22f,
16, RF_ACTIVE);
if (!sb->io_base) {
sb->io_base = bus_alloc_resource(dev, SYS_RES_IOPORT,
&sb->io_rid, 0x240,
0x24f, 16, RF_ACTIVE);
}
}
if (!sb->io_base) return ENXIO;
return sb_doattach(dev, sb);
}
static device_method_t sb_methods[] = {
/* Device interface */
DEVMETHOD(device_probe, sb_probe),
DEVMETHOD(device_attach, sb_attach),
{ 0, 0 }
};
static driver_t sb_driver = {
"pcm",
sb_methods,
sizeof(snddev_info),
};
DRIVER_MODULE(sb, isa, sb_driver, pcm_devclass, 0, 0);
static void
sb_intr(void *arg)
{
struct sb_info *sb = (struct sb_info *)arg;
int reason = 3, c;
/*
* SB < 4.0 is half duplex and has only 1 bit for int source,
* so we fake it. SB 4.x (SB16) has the int source in a separate
* register.
* The Vibra16X has separate flags for 8 and 16 bit transfers, but
* I have no idea how to tell capture from playback interrupts...
*/
if (sb->bd_flags & BD_F_SB16) {
c = sb_getmixer(sb, IRQ_STAT);
/* this tells us if the source is 8-bit or 16-bit dma. We
* have to check the io channel to map it to read or write...
*/
reason = 0;
if (c & 1) { /* 8-bit dma */
if (sb->pch.fmt & AFMT_U8) reason |= 1;
if (sb->rch.fmt & AFMT_U8) reason |= 2;
}
if (c & 2) { /* 16-bit dma */
if (sb->pch.fmt & AFMT_S16_LE) reason |= 1;
if (sb->rch.fmt & AFMT_S16_LE) reason |= 2;
}
} else c = 1;
#if 0
printf("sb_intr: reason=%d c=0x%x\n", reason, c);
#endif
if ((reason & 1) && (sb->pch.buffer->dl > 0))
chn_intr(sb->pch.channel);
if ((reason & 2) && (sb->rch.buffer->dl > 0))
chn_intr(sb->rch.channel);
if (c & 1) sb_rd(sb, DSP_DATA_AVAIL); /* 8-bit int ack */
if (c & 2) sb_rd(sb, DSP_DATA_AVL16); /* 16-bit int ack */
}
static void
ess_intr(void *arg)
{
struct sb_info *sb = (struct sb_info *)arg;
sb_rd(sb, DSP_DATA_AVAIL); /* int ack */
#ifdef notyet
/*
* XXX
* for full-duplex mode:
* should read port 0x6 to identify where interrupt came from.
*/
#endif
/*
* We are transferring data in DSP normal mode,
* so clear the dl to indicate the DMA is stopped.
*/
if (sb->pch.buffer->dl > 0) {
sb->pch.buffer->dl = -1;
chn_intr(sb->pch.channel);
}
if (sb->rch.buffer->dl > 0) {
sb->rch.buffer->dl = -1;
chn_intr(sb->rch.channel);
}
}
static int
sb_format(struct sb_chinfo *ch, u_int32_t format)
{
ch->fmt = format;
return 0;
}
static int
sb_speed(struct sb_chinfo *ch, int speed)
{
struct sb_info *sb = ch->parent;
int play = (ch->dir == PCMDIR_PLAY)? 1 : 0;
int stereo = (ch->fmt & AFMT_STEREO)? 1 : 0;
if (sb->bd_flags & BD_F_SB16) {
RANGE(speed, 5000, 45000);
sb_cmd(sb, 0x42 - play);
sb_cmd(sb, speed >> 8);
sb_cmd(sb, speed & 0xff);
} else {
u_char tconst;
int max_speed = 45000, tmp;
u_long flags;
/* here enforce speed limitations - max 22050 on sb 1.x*/
if (sb->bd_id <= 0x200) max_speed = 22050;
/*
* SB models earlier than SB Pro have low limit for the
* input rate. Note that this is only for input, but since
* we do not support separate values for rec & play....
*/
if (!play) {
if (sb->bd_id <= 0x200) max_speed = 13000;
else if (sb->bd_id < 0x300) max_speed = 15000;
}
RANGE(speed, 4000, max_speed);
if (stereo) speed <<= 1;
/*
* Now the speed should be valid. Compute the value to be
* programmed into the board.
*/
if (speed > 22050) { /* High speed mode on 2.01/3.xx */
tconst = (u_char)
((65536 - ((256000000 + speed / 2) / speed))
>> 8);
sb->bd_flags |= BD_F_HISPEED;
tmp = 65536 - (tconst << 8);
speed = (256000000 + tmp / 2) / tmp;
} else {
sb->bd_flags &= ~BD_F_HISPEED;
tconst = (256 - ((1000000 + speed / 2) / speed)) & 0xff;
tmp = 256 - tconst;
speed = (1000000 + tmp / 2) / tmp;
}
flags = spltty();
sb_cmd1(sb, 0x40, tconst); /* set time constant */
splx(flags);
if (stereo) speed >>= 1;
}
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 b16 = (ch->fmt & AFMT_S16_LE)? 1 : 0;
int stereo = (ch->fmt & AFMT_STEREO)? 1 : 0;
int l = ch->buffer->dl;
u_char i1, i2 = 0;
if (b16) l >>= 1;
l--;
if (play) sb_cmd(sb, DSP_CMD_SPKON);
if (sb->bd_flags & BD_F_SB16) {
i1 = DSP_F16_AUTO | DSP_F16_FIFO_ON |
(play? DSP_F16_DAC : DSP_F16_ADC);
i1 |= (b16 && (sb->bd_flags & BD_F_DUPLEX))? DSP_DMA16 : DSP_DMA8;
i2 = (stereo? DSP_F16_STEREO : 0) | (b16? DSP_F16_SIGNED : 0);
sb_cmd(sb, i1);
sb_cmd2(sb, i2, l);
} else {
if (sb->bd_flags & BD_F_HISPEED) i1 = play? 0x90 : 0x98;
else i1 = play? 0x1c : 0x2c;
sb_setmixer(sb, 0x0e, stereo? 2 : 0);
/* an ESS extension -- they can do 16 bits */
if (b16) i1 |= 1;
sb_cmd2(sb, 0x48, l);
sb_cmd(sb, i1);
}
sb->bd_flags |= BD_F_DMARUN << b16;
return 0;
}
static int
sb_stop(struct sb_chinfo *ch)
{
struct sb_info *sb = ch->parent;
int play = (ch->dir == PCMDIR_PLAY)? 1 : 0;
int b16 = (ch->fmt & AFMT_S16_LE)? 1 : 0;
if (sb->bd_flags & BD_F_HISPEED) sb_reset_dsp(sb);
else {
sb_cmd(sb, b16? DSP_CMD_DMAPAUSE_16 : DSP_CMD_DMAPAUSE_8);
/*
* The above seems to have the undocumented side effect of
* blocking the other side as well. If the other
* channel was active (SB16) I have to re-enable it :(
*/
if (sb->bd_flags & (BD_F_DMARUN << (1 - b16)))
sb_cmd(sb, b16? 0xd4 : 0xd6 );
}
if (play) sb_cmd(sb, DSP_CMD_SPKOFF); /* speaker off */
sb->bd_flags &= ~(BD_F_DMARUN << b16);
return 0;
}
/* utility functions for ESS */
static int
ess_format(struct sb_chinfo *ch, u_int32_t format)
{
struct sb_info *sb = ch->parent;
int play = (ch->dir == PCMDIR_PLAY)? 1 : 0;
int b16 = (format & AFMT_S16_LE)? 1 : 0;
int stereo = (format & AFMT_STEREO)? 1 : 0;
u_char c;
ch->fmt = format;
sb_reset_dsp(sb);
/* normal DMA mode */
ess_write(sb, 0xb8, play ? 0x00 : 0x0a);
/* mono/stereo */
c = (ess_read(sb, 0xa8) & ~0x03) | 1;
if (!stereo) c++;
ess_write(sb, 0xa8, c);
/* demand mode, 4 bytes/xfer */
ess_write(sb, 0xb9, 2);
/* setup dac/adc */
if (play) ess_write(sb, 0xb6, b16? 0x00 : 0x80);
ess_write(sb, 0xb7, 0x51 | (b16? 0x20 : 0x00));
ess_write(sb, 0xb7, 0x98 + (b16? 0x24 : 0x00) + (stereo? 0x00 : 0x38));
/* irq/drq control */
ess_write(sb, 0xb1, (ess_read(sb, 0xb1) & 0x0f) | 0x50);
ess_write(sb, 0xb2, (ess_read(sb, 0xb2) & 0x0f) | 0x50);
return 0;
}
static int
ess_speed(struct sb_chinfo *ch, int speed)
{
struct sb_info *sb = ch->parent;
int t;
RANGE (speed, 5000, 49000);
if (speed > 22000) {
t = (795500 + speed / 2) / speed;
speed = (795500 + t / 2) / t;
t = (256 - t ) | 0x80;
} else {
t = (397700 + speed / 2) / speed;
speed = (397700 + t / 2) / t;
t = 128 - t;
}
ess_write(sb, 0xa1, t); /* set time constant */
#if 0
d->play_speed = d->rec_speed = speed;
speed = (speed * 9 ) / 20;
#endif
t = 256 - 7160000 / ((speed * 9 / 20) * 82);
ess_write(sb, 0xa2, t);
return speed;
}
static int
ess_start(struct sb_chinfo *ch)
{
struct sb_info *sb = ch->parent;
int play = (ch->dir == PCMDIR_PLAY)? 1 : 0;
short c = - ch->buffer->dl;
u_char c1;
/*
* clear bit 0 of register B8h
*/
#if 1
c1 = play ? 0x00 : 0x0a;
ess_write(sb, 0xb8, c1++);
#else
c1 = ess_read(sb, 0xb8) & 0xfe;
ess_write(sb, 0xb8, c1++);
#endif
/*
* update ESS Transfer Count Register
*/
ess_write(sb, 0xa4, (u_char)((u_short)c & 0xff));
ess_write(sb, 0xa5, (u_char)(((u_short)c >> 8) & 0xff));
/*
* set bit 0 of register B8h
*/
ess_write(sb, 0xb8, c1);
if (play)
sb_cmd(sb, DSP_CMD_SPKON);
return 0;
}
static int
ess_stop(struct sb_chinfo *ch)
{
struct sb_info *sb = ch->parent;
/*
* no need to send a stop command if the DMA has already stopped.
*/
if (ch->buffer->dl > 0) {
sb_cmd(sb, DSP_CMD_DMAPAUSE_8); /* pause dma. */
}
return 0;
}
static int
ess_abort(struct sb_chinfo *ch)
{
struct sb_info *sb = ch->parent;
int play = (ch->dir == PCMDIR_PLAY)? 1 : 0;
if (play) sb_cmd(sb, DSP_CMD_SPKOFF); /* speaker off */
sb_reset_dsp(sb);
ess_format(ch, ch->fmt);
ess_speed(ch, ch->channel->speed);
return 0;
}
/* channel interface */
static void *
sbchan_init(void *devinfo, snd_dbuf *b, 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->buffer = b;
ch->buffer->bufsize = DSP_BUFFSIZE;
if (chn_allocbuf(ch->buffer, sb->parent_dmat) == -1) return NULL;
ch->buffer->chan = (dir == PCMDIR_PLAY)? sb->dma16 : sb->dma8;
return ch;
}
static int
sbchan_setdir(void *data, int dir)
{
struct sb_chinfo *ch = data;
ch->dir = dir;
return 0;
}
static int
sbchan_setformat(void *data, u_int32_t format)
{
struct sb_chinfo *ch = data;
sb_format(ch, format);
return 0;
}
static int
sbchan_setspeed(void *data, u_int32_t speed)
{
struct sb_chinfo *ch = data;
return sb_speed(ch, speed);
}
static int
sbchan_setblocksize(void *data, u_int32_t blocksize)
{
return blocksize;
}
static int
sbchan_trigger(void *data, int go)
{
struct sb_chinfo *ch = data;
buf_isadma(ch->buffer, go);
if (go == PCMTRIG_START) sb_start(ch); else sb_stop(ch);
return 0;
}
static int
sbchan_getptr(void *data)
{
struct sb_chinfo *ch = data;
return buf_isadmaptr(ch->buffer);
}
static pcmchan_caps *
sbchan_getcaps(void *data)
{
struct sb_chinfo *ch = data;
int p = (ch->dir == PCMDIR_PLAY)? 1 : 0;
if (ch->parent->bd_id <= 0x200)
return p? &sb_playcaps : &sb_reccaps;
else if (ch->parent->bd_id >= 0x400)
return p? &sb16_playcaps : &sb16_reccaps;
else
return p? &sbpro_playcaps : &sbpro_reccaps;
}
/* channel interface for ESS18xx */
#ifdef notyet
static void *
esschan_init(void *devinfo, snd_dbuf *b, pcm_channel *c, int dir)
{
/* the same as sbchan_init()? */
}
#endif
static int
esschan_setdir(void *data, int dir)
{
struct sb_chinfo *ch = data;
ch->dir = dir;
return 0;
}
static int
esschan_setformat(void *data, u_int32_t format)
{
struct sb_chinfo *ch = data;
ess_format(ch, format);
return 0;
}
static int
esschan_setspeed(void *data, u_int32_t speed)
{
struct sb_chinfo *ch = data;
return ess_speed(ch, speed);
}
static int
esschan_setblocksize(void *data, u_int32_t blocksize)
{
return blocksize;
}
static int
esschan_trigger(void *data, int go)
{
struct sb_chinfo *ch = data;
switch (go) {
case PCMTRIG_START:
if (!ch->ess_dma_started)
buf_isadma(ch->buffer, go);
ch->ess_dma_started = 1;
ess_start(ch);
break;
case PCMTRIG_STOP:
if (ch->buffer->dl >= 0) {
buf_isadma(ch->buffer, go);
ch->ess_dma_started = 0;
ess_stop(ch);
}
break;
case PCMTRIG_ABORT:
default:
ch->ess_dma_started = 0;
ess_abort(ch);
buf_isadma(ch->buffer, go);
break;
}
return 0;
}
static int
esschan_getptr(void *data)
{
struct sb_chinfo *ch = data;
return buf_isadmaptr(ch->buffer);
}
static pcmchan_caps *
esschan_getcaps(void *data)
{
struct sb_chinfo *ch = data;
return (ch->dir == PCMDIR_PLAY)? &ess_playcaps : &ess_reccaps;
}
/************************************************************/
static int
sbmix_init(snd_mixer *m)
{
struct sb_info *sb = mix_getdevinfo(m);
switch (sb->bd_flags & BD_F_MIX_MASK) {
case BD_F_MIX_CT1345: /* SB 3.0 has 1345 mixer */
mix_setdevs(m, SBPRO_MIXER_DEVICES);
mix_setrecdevs(m, SBPRO_RECORDING_DEVICES);
sb_setmixer(sb, 0, 1); /* reset mixer */
sb_setmixer(sb, MIC_VOL, 0x6); /* mic volume max */
sb_setmixer(sb, RECORD_SRC, 0x0); /* mic source */
sb_setmixer(sb, FM_VOL, 0x0); /* no midi */
break;
case BD_F_MIX_CT1745: /* SB16 mixer ... */
mix_setdevs(m, SB16_MIXER_DEVICES);
mix_setrecdevs(m, SB16_RECORDING_DEVICES);
sb_setmixer(sb, 0x3c, 0x1f); /* make all output active */
sb_setmixer(sb, 0x3d, 0); /* make all inputs-l off */
sb_setmixer(sb, 0x3e, 0); /* make all inputs-r off */
}
return 0;
}
static int
sbmix_set(snd_mixer *m, unsigned dev, unsigned left, unsigned right)
{
struct sb_info *sb = mix_getdevinfo(m);
int regoffs;
u_char val;
mixer_tab *iomap;
switch (sb->bd_flags & BD_F_MIX_MASK) {
case BD_F_MIX_CT1345:
if (sb->bd_flags & BD_F_ESS)
iomap = &ess_mix;
else
iomap = &sbpro_mix;
break;
case BD_F_MIX_CT1745:
iomap = &sb16_mix;
break;
default:
return -1;
/* XXX how about the SG NX Pro, iomap = sgnxpro_mix */
}
/* Change left channel */
regoffs = (*iomap)[dev][LEFT_CHN].regno;
if (regoffs != 0) {
val = sb_getmixer(sb, regoffs);
change_bits(iomap, &val, dev, LEFT_CHN, left);
sb_setmixer(sb, regoffs, val);
}
/* Change right channel */
regoffs = (*iomap)[dev][RIGHT_CHN].regno;
if (regoffs != 0) {
val = sb_getmixer(sb, regoffs); /* Read the new one */
change_bits(iomap, &val, dev, RIGHT_CHN, right);
sb_setmixer(sb, regoffs, val);
} else
right = left;
return left | (right << 8);
}
static int
sbmix_setrecsrc(snd_mixer *m, u_int32_t src)
{
struct sb_info *sb = mix_getdevinfo(m);
u_char recdev;
switch (sb->bd_flags & BD_F_MIX_MASK) {
case BD_F_MIX_CT1345:
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));
break;
case BD_F_MIX_CT1745: /* sb16 */
recdev = 0;
if (src & SOUND_MASK_MIC) recdev |= 0x01; /* mono mic */
if (src & SOUND_MASK_CD) recdev |= 0x06; /* l+r cd */
if (src & SOUND_MASK_LINE) recdev |= 0x18; /* l+r line */
if (src & SOUND_MASK_SYNTH) recdev |= 0x60; /* l+r midi */
sb_setmixer(sb, SB16_IMASK_L, recdev);
sb_setmixer(sb, SB16_IMASK_R, recdev);
/*
* since the same volume controls apply to the input and
* output sections, the best approach to have a consistent
* behaviour among cards would be to disable the output path
* on devices which are used to record.
* However, since users like to have feedback, we only disable
* the mic -- permanently.
*/
sb_setmixer(sb, SB16_OMASK, 0x1f & ~1);
break;
}
return src;
}
#if NPNP > 0
static int
sbpnp_probe(device_t dev)
{
char *s = NULL;
u_int32_t logical_id = isa_get_logicalid(dev);
switch(logical_id) {
case 0x43008c0e: /* CTL0043 */
case 0x01008c0e: /* CTL0001 */
s = "Vibra16X";
break;
case 0x31008c0e: /* CTL0031 */
case 0x41008c0e: /* CTL0041 */
case 0x42008c0e: /* CTL0042 */
s = "SB16 PnP";
break;
case 0x44008c0e: /* CTL0044 */
s = "Creative SB AWE64 Gold";
break;
case 0x45008c0e: /* CTL0045 */
s = "Creative AWE64 PnP";
break;
case 0x01100000: /* @@@1001 */
s = "Avance Asound 110";
break;
case 0x01200000: /* @@@2001 */
s = "Avance Logic ALS120";
break;
case 0x68187316: /* ESS1868 */
s = "ESS1868";
break;
case 0x69187316: /* ESS1869 */
s = "ESS1869";
break;
case 0x88187316: /* ESS1888 */
s = "ESS1888";
break;
}
if (s) {
device_set_desc(dev, s);
return 0;
}
return ENXIO;
}
static int
sbpnp_attach(device_t dev)
{
struct sb_info *sb;
u_int32_t vend_id = isa_get_vendorid(dev);
sb = (struct sb_info *)malloc(sizeof *sb, M_DEVBUF, M_NOWAIT);
if (!sb) return ENXIO;
bzero(sb, sizeof *sb);
switch(vend_id) {
case 0xf0008c0e:
case 0x10019305:
case 0x20019305:
/* XXX add here the vend_id for other vibra16X cards... */
sb->bd_flags = BD_F_SB16X;
}
return sb_doattach(dev, sb);
}
static device_method_t sbpnp_methods[] = {
/* Device interface */
DEVMETHOD(device_probe, sbpnp_probe),
DEVMETHOD(device_attach, sbpnp_attach),
{ 0, 0 }
};
static driver_t sbpnp_driver = {
"pcm",
sbpnp_methods,
sizeof(snddev_info),
};
DRIVER_MODULE(sbpnp, isa, sbpnp_driver, pcm_devclass, 0, 0);
#endif /* NPNP > 0 */
#endif /* NPCM > 0 */
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