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freebsd/sys/dev/sound/isa/sb16.c
Ariff Abdullah 90da2b2859 Sound Mega-commit. Expect further cleanup until code freeze. 
For a slightly thorough explaination, please refer to
	[1] http://people.freebsd.org/~ariff/SOUND_4.TXT.html .

Summary of changes includes:

1 Volume Per-Channel (vpc).  Provides private / standalone volume control
  unique per-stream pcm channel without touching master volume / pcm.
  Applications can directly use SNDCTL_DSP_[GET|SET][PLAY|REC]VOL, or for
  backwards compatibility, SOUND_MIXER_PCM through the opened dsp device
  instead of /dev/mixer.  Special "bypass" mode is enabled through
  /dev/mixer which will automatically detect if the adjustment is made
  through /dev/mixer and forward its request to this private volume
  controller.  Changes to this volume object will not interfere with
  other channels.

  Requirements:
    - SNDCTL_DSP_[GET|SET][PLAY|REC]_VOL are newer ioctls (OSSv4) which
      require specific application modifications (preferred).
    - No modifications required for using bypass mode, so applications
      like mplayer or xmms should work out of the box.

  Kernel hints:
    - hint.pcm.%d.vpc (0 = disable vpc).

  Kernel sysctls:
    - hw.snd.vpc_mixer_bypass (default: 1).  Enable or disable /dev/mixer
      bypass mode.
    - hw.snd.vpc_autoreset (default: 1).  By default, closing/opening
      /dev/dsp will reset the volume back to 0 db gain/attenuation.
      Setting this to 0 will preserve its settings across device
      closing/opening.
    - hw.snd.vpc_reset (default: 0).  Panic/reset button to reset all
      volume settings back to 0 db.
    - hw.snd.vpc_0db (default: 45).  0 db relative to linear mixer value.

2 High quality fixed-point Bandlimited SINC sampling rate converter,
  based on Julius O'Smith's Digital Audio Resampling -
  http://ccrma.stanford.edu/~jos/resample/.  It includes a filter design
  script written in awk (the clumsiest joke I've ever written)
    - 100% 32bit fixed-point, 64bit accumulator.
    - Possibly among the fastest (if not fastest) of its kind.
    - Resampling quality is tunable, either runtime or during kernel
      compilation (FEEDER_RATE_PRESETS).
    - Quality can be further customized during kernel compilation by
      defining FEEDER_RATE_PRESETS in /etc/make.conf.

  Kernel sysctls:
    - hw.snd.feeder_rate_quality.
      0 - Zero-order Hold (ZOH).  Fastest, bad quality.
      1 - Linear Interpolation (LINEAR).  Slightly slower than ZOH,
          better quality but still does not eliminate aliasing.
      2 - (and above) - Sinc Interpolation(SINC).  Best quality.  SINC
          quality always start from 2 and above.

  Rough quality comparisons:
    - http://people.freebsd.org/~ariff/z_comparison/

3 Bit-perfect mode.  Bypasses all feeder/dsp effects.  Pure sound will be
  directly fed into the hardware.

4 Parametric (compile time) Software Equalizer (Bass/Treble mixer). Can
  be customized by defining FEEDER_EQ_PRESETS in /etc/make.conf.

5 Transparent/Adaptive Virtual Channel. Now you don't have to disable
  vchans in order to make digital format pass through.  It also makes
  vchans more dynamic by choosing a better format/rate among all the
  concurrent streams, which means that dev.pcm.X.play.vchanformat/rate
  becomes sort of optional.

6 Exclusive Stream, with special open() mode O_EXCL.  This will "mute"
  other concurrent vchan streams and only allow a single channel with
  O_EXCL set to keep producing sound.

Other Changes:
    * most feeder_* stuffs are compilable in userland. Let's not
      speculate whether we should go all out for it (save that for
      FreeBSD 16.0-RELEASE).
    * kobj signature fixups, thanks to Andriy Gapon <avg@freebsd.org>
    * pull out channel mixing logic out of vchan.c and create its own
      feeder_mixer for world justice.
    * various refactoring here and there, for good or bad.
    * activation of few more OSSv4 ioctls() (see [1] above).
    * opt_snd.h for possible compile time configuration:
      (mostly for debugging purposes, don't try these at home)
        SND_DEBUG
        SND_DIAGNOSTIC
        SND_FEEDER_MULTIFORMAT
        SND_FEEDER_FULL_MULTIFORMAT
        SND_FEEDER_RATE_HP
        SND_PCM_64
        SND_OLDSTEREO

Manual page updates are on the way.

Tested by:	joel, Olivier SMEDTS <olivier at gid0 d org>, too many
          	unsung / unnamed heroes.
2009-06-07 19:12:08 +00:00

916 lines
22 KiB
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Raw Blame History

/*-
* Copyright (c) 1999 Cameron Grant <cg@freebsd.org>
* Copyright (c) 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.
*/
#ifdef HAVE_KERNEL_OPTION_HEADERS
#include "opt_snd.h"
#endif
#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("$FreeBSD$");
#define SB16_BUFFSIZE 4096
#define PLAIN_SB16(x) ((((x)->bd_flags) & (BD_F_SB16|BD_F_SB16X)) == BD_F_SB16)
static u_int32_t sb16_fmt8[] = {
SND_FORMAT(AFMT_U8, 1, 0),
SND_FORMAT(AFMT_U8, 2, 0),
0
};
static struct pcmchan_caps sb16_caps8 = {5000, 45000, sb16_fmt8, 0};
static u_int32_t sb16_fmt16[] = {
SND_FORMAT(AFMT_S16_LE, 1, 0),
SND_FORMAT(AFMT_S16_LE, 2, 0),
0
};
static struct pcmchan_caps sb16_caps16 = {5000, 45000, sb16_fmt16, 0};
static u_int32_t sb16x_fmt[] = {
SND_FORMAT(AFMT_U8, 1, 0),
SND_FORMAT(AFMT_U8, 2, 0),
SND_FORMAT(AFMT_S16_LE, 1, 0),
SND_FORMAT(AFMT_S16_LE, 2, 0),
0
};
static struct pcmchan_caps sb16x_caps = {5000, 49000, sb16x_fmt, 0};
struct sb_info;
struct sb_chinfo {
struct sb_info *parent;
struct pcm_channel *channel;
struct snd_dbuf *buffer;
int dir, run, dch;
u_int32_t fmt, spd, blksz;
};
struct sb_info {
struct resource *io_base; /* I/O address for the board */
struct resource *irq;
struct resource *drq1;
struct resource *drq2;
void *ih;
bus_dma_tag_t parent_dmat;
unsigned int bufsize;
int bd_id;
u_long bd_flags; /* board-specific flags */
int prio, prio16;
struct sb_chinfo pch, rch;
device_t parent_dev;
};
#if 0
static void sb_lock(struct sb_info *sb);
static void sb_unlock(struct sb_info *sb);
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_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);
#endif
/*
* 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_lockassert(struct sb_info *sb) {
sbc_lockassert(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_dspwr(struct sb_info *sb, u_char val)
{
int i;
for (i = 0; i < 1000; i++) {
if ((sb_rd(sb, SBDSP_STATUS) & 0x80))
DELAY((i > 100)? 1000 : 10);
else {
sb_wr(sb, SBDSP_CMD, val);
return 1;
}
}
#if __FreeBSD_version > 500000
if (curthread->td_intr_nesting_level == 0)
printf("sb_dspwr(0x%02x) timed out.\n", val);
#endif
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)
{
int r;
#if 0
printf("sb_cmd2: %x, %x\n", cmd, val);
#endif
sb_lockassert(sb);
r = 0;
if (sb_dspwr(sb, cmd)) {
if (sb_dspwr(sb, val & 0xff)) {
if (sb_dspwr(sb, (val >> 8) & 0xff)) {
r = 1;
}
}
}
return r;
}
/*
* 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)
{
sb_lock(sb);
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);
sb_unlock(sb);
}
static int
sb_getmixer(struct sb_info *sb, u_int port)
{
int val;
sb_lockassert(sb);
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)
{
u_char b;
sb_lockassert(sb);
sb_wr(sb, SBDSP_RST, 3);
DELAY(100);
sb_wr(sb, SBDSP_RST, 0);
b = sb_get_byte(sb);
if (b != 0xAA) {
DEB(printf("sb_reset_dsp 0x%lx failed\n",
rman_get_start(sb->io_base)));
return ENXIO; /* Sorry */
}
return 0;
}
/************************************************************/
struct sb16_mixent {
int reg;
int bits;
int ofs;
int stereo;
};
static const struct sb16_mixent sb16_mixtab[32] = {
[SOUND_MIXER_VOLUME] = { 0x30, 5, 3, 1 },
[SOUND_MIXER_PCM] = { 0x32, 5, 3, 1 },
[SOUND_MIXER_SYNTH] = { 0x34, 5, 3, 1 },
[SOUND_MIXER_CD] = { 0x36, 5, 3, 1 },
[SOUND_MIXER_LINE] = { 0x38, 5, 3, 1 },
[SOUND_MIXER_MIC] = { 0x3a, 5, 3, 0 },
[SOUND_MIXER_SPEAKER] = { 0x3b, 5, 3, 0 },
[SOUND_MIXER_IGAIN] = { 0x3f, 2, 6, 1 },
[SOUND_MIXER_OGAIN] = { 0x41, 2, 6, 1 },
[SOUND_MIXER_TREBLE] = { 0x44, 4, 4, 1 },
[SOUND_MIXER_BASS] = { 0x46, 4, 4, 1 },
[SOUND_MIXER_LINE1] = { 0x52, 5, 3, 1 }
};
static int
sb16mix_init(struct snd_mixer *m)
{
struct sb_info *sb = mix_getdevinfo(m);
mix_setdevs(m, SOUND_MASK_SYNTH | SOUND_MASK_PCM | SOUND_MASK_SPEAKER |
SOUND_MASK_LINE | SOUND_MASK_MIC | SOUND_MASK_CD |
SOUND_MASK_IGAIN | SOUND_MASK_OGAIN | SOUND_MASK_LINE1 |
SOUND_MASK_VOLUME | SOUND_MASK_BASS | SOUND_MASK_TREBLE);
mix_setrecdevs(m, SOUND_MASK_SYNTH | SOUND_MASK_LINE |
SOUND_MASK_LINE1 | SOUND_MASK_MIC | SOUND_MASK_CD);
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
rel2abs_volume(int x, int max)
{
int temp;
temp = ((x * max) + 50) / 100;
if (temp > max)
temp = max;
else if (temp < 0)
temp = 0;
return (temp);
}
static int
sb16mix_set(struct snd_mixer *m, unsigned dev, unsigned left, unsigned right)
{
struct sb_info *sb = mix_getdevinfo(m);
const struct sb16_mixent *e;
int max;
e = &sb16_mixtab[dev];
max = (1 << e->bits) - 1;
left = rel2abs_volume(left, max);
right = rel2abs_volume(right, max);
sb_setmixer(sb, e->reg, left << e->ofs);
if (e->stereo)
sb_setmixer(sb, e->reg + 1, right << e->ofs);
else
right = left;
left = (left * 100) / max;
right = (right * 100) / max;
return left | (right << 8);
}
static u_int32_t
sb16mix_setrecsrc(struct snd_mixer *m, u_int32_t src)
{
struct sb_info *sb = mix_getdevinfo(m);
u_char recdev_l, recdev_r;
recdev_l = 0;
recdev_r = 0;
if (src & SOUND_MASK_MIC) {
recdev_l |= 0x01; /* mono mic */
recdev_r |= 0x01;
}
if (src & SOUND_MASK_CD) {
recdev_l |= 0x04; /* l cd */
recdev_r |= 0x02; /* r cd */
}
if (src & SOUND_MASK_LINE) {
recdev_l |= 0x10; /* l line */
recdev_r |= 0x08; /* r line */
}
if (src & SOUND_MASK_SYNTH) {
recdev_l |= 0x40; /* l midi */
recdev_r |= 0x20; /* r midi */
}
sb_setmixer(sb, SB16_IMASK_L, recdev_l);
sb_setmixer(sb, SB16_IMASK_R, recdev_r);
/* Switch on/off FM tuner source */
if (src & SOUND_MASK_LINE1)
sb_setmixer(sb, 0x4a, 0x0c);
else
sb_setmixer(sb, 0x4a, 0x00);
/*
* 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);
return src;
}
static kobj_method_t sb16mix_mixer_methods[] = {
KOBJMETHOD(mixer_init, sb16mix_init),
KOBJMETHOD(mixer_set, sb16mix_set),
KOBJMETHOD(mixer_setrecsrc, sb16mix_setrecsrc),
KOBJMETHOD_END
};
MIXER_DECLARE(sb16mix_mixer);
/************************************************************/
static void
sb16_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->drq2) {
if (sb->drq2 != sb->drq1) {
isa_dma_release(rman_get_start(sb->drq2));
bus_release_resource(dev, SYS_RES_DRQ, 1, sb->drq2);
}
sb->drq2 = 0;
}
if (sb->drq1) {
isa_dma_release(rman_get_start(sb->drq1));
bus_release_resource(dev, SYS_RES_DRQ, 0, sb->drq1);
sb->drq1 = 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
sb16_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->drq1)
sb->drq1 = bus_alloc_resource_any(dev, SYS_RES_DRQ, &rid,
RF_ACTIVE);
rid = 1;
if (!sb->drq2)
sb->drq2 = bus_alloc_resource_any(dev, SYS_RES_DRQ, &rid,
RF_ACTIVE);
if (sb->io_base && sb->drq1 && sb->irq) {
isa_dma_acquire(rman_get_start(sb->drq1));
isa_dmainit(rman_get_start(sb->drq1), sb->bufsize);
if (sb->drq2) {
isa_dma_acquire(rman_get_start(sb->drq2));
isa_dmainit(rman_get_start(sb->drq2), sb->bufsize);
} else {
sb->drq2 = sb->drq1;
pcm_setflags(dev, pcm_getflags(dev) | SD_F_SIMPLEX);
}
return 0;
} else return ENXIO;
}
/* sbc does locking for us */
static void
sb_intr(void *arg)
{
struct sb_info *sb = (struct sb_info *)arg;
int reason, c;
/*
* The Vibra16X has separate flags for 8 and 16 bit transfers, but
* I have no idea how to tell capture from playback interrupts...
*/
reason = 0;
sb_lock(sb);
c = sb_getmixer(sb, IRQ_STAT);
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 */
sb_unlock(sb);
/*
* 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...
*/
if (sb->bd_flags & BD_F_SB16X) {
if (c & 1) { /* 8-bit format */
if (sb->pch.fmt & AFMT_8BIT)
reason |= 1;
if (sb->rch.fmt & AFMT_8BIT)
reason |= 2;
}
if (c & 2) { /* 16-bit format */
if (sb->pch.fmt & AFMT_16BIT)
reason |= 1;
if (sb->rch.fmt & AFMT_16BIT)
reason |= 2;
}
} else {
if (c & 1) { /* 8-bit dma */
if (sb->pch.dch == 1)
reason |= 1;
if (sb->rch.dch == 1)
reason |= 2;
}
if (c & 2) { /* 16-bit dma */
if (sb->pch.dch == 2)
reason |= 1;
if (sb->rch.dch == 2)
reason |= 2;
}
}
#if 0
printf("sb_intr: reason=%d c=0x%x\n", reason, c);
#endif
if ((reason & 1) && (sb->pch.run))
chn_intr(sb->pch.channel);
if ((reason & 2) && (sb->rch.run))
chn_intr(sb->rch.channel);
}
static int
sb_setup(struct sb_info *sb)
{
struct sb_chinfo *ch;
u_int8_t v;
int l, pprio;
sb_lock(sb);
if (sb->bd_flags & BD_F_DMARUN)
sndbuf_dma(sb->pch.buffer, PCMTRIG_STOP);
if (sb->bd_flags & BD_F_DMARUN2)
sndbuf_dma(sb->rch.buffer, PCMTRIG_STOP);
sb->bd_flags &= ~(BD_F_DMARUN | BD_F_DMARUN2);
sb_reset_dsp(sb);
if (sb->bd_flags & BD_F_SB16X) {
/* full-duplex doesn't work! */
pprio = sb->pch.run? 1 : 0;
sndbuf_dmasetup(sb->pch.buffer, pprio? sb->drq1 : sb->drq2);
sb->pch.dch = pprio? 1 : 0;
sndbuf_dmasetup(sb->rch.buffer, pprio? sb->drq2 : sb->drq1);
sb->rch.dch = pprio? 2 : 1;
} else {
if (sb->pch.run && sb->rch.run) {
pprio = (sb->rch.fmt & AFMT_16BIT)? 0 : 1;
sndbuf_dmasetup(sb->pch.buffer, pprio? sb->drq2 : sb->drq1);
sb->pch.dch = pprio? 2 : 1;
sndbuf_dmasetup(sb->rch.buffer, pprio? sb->drq1 : sb->drq2);
sb->rch.dch = pprio? 1 : 2;
} else {
if (sb->pch.run) {
sndbuf_dmasetup(sb->pch.buffer, (sb->pch.fmt & AFMT_16BIT)? sb->drq2 : sb->drq1);
sb->pch.dch = (sb->pch.fmt & AFMT_16BIT)? 2 : 1;
sndbuf_dmasetup(sb->rch.buffer, (sb->pch.fmt & AFMT_16BIT)? sb->drq1 : sb->drq2);
sb->rch.dch = (sb->pch.fmt & AFMT_16BIT)? 1 : 2;
} else if (sb->rch.run) {
sndbuf_dmasetup(sb->pch.buffer, (sb->rch.fmt & AFMT_16BIT)? sb->drq1 : sb->drq2);
sb->pch.dch = (sb->rch.fmt & AFMT_16BIT)? 1 : 2;
sndbuf_dmasetup(sb->rch.buffer, (sb->rch.fmt & AFMT_16BIT)? sb->drq2 : sb->drq1);
sb->rch.dch = (sb->rch.fmt & AFMT_16BIT)? 2 : 1;
}
}
}
sndbuf_dmasetdir(sb->pch.buffer, PCMDIR_PLAY);
sndbuf_dmasetdir(sb->rch.buffer, PCMDIR_REC);
/*
printf("setup: [pch = %d, pfmt = %d, pgo = %d] [rch = %d, rfmt = %d, rgo = %d]\n",
sb->pch.dch, sb->pch.fmt, sb->pch.run, sb->rch.dch, sb->rch.fmt, sb->rch.run);
*/
ch = &sb->pch;
if (ch->run) {
l = ch->blksz;
if (ch->fmt & AFMT_16BIT)
l >>= 1;
l--;
/* play speed */
RANGE(ch->spd, 5000, 45000);
sb_cmd(sb, DSP_CMD_OUT16);
sb_cmd(sb, ch->spd >> 8);
sb_cmd(sb, ch->spd & 0xff);
/* play format, length */
v = DSP_F16_AUTO | DSP_F16_FIFO_ON | DSP_F16_DAC;
v |= (ch->fmt & AFMT_16BIT)? DSP_DMA16 : DSP_DMA8;
sb_cmd(sb, v);
v = (AFMT_CHANNEL(ch->fmt) > 1)? DSP_F16_STEREO : 0;
v |= (ch->fmt & AFMT_SIGNED)? DSP_F16_SIGNED : 0;
sb_cmd2(sb, v, l);
sndbuf_dma(ch->buffer, PCMTRIG_START);
sb->bd_flags |= BD_F_DMARUN;
}
ch = &sb->rch;
if (ch->run) {
l = ch->blksz;
if (ch->fmt & AFMT_16BIT)
l >>= 1;
l--;
/* record speed */
RANGE(ch->spd, 5000, 45000);
sb_cmd(sb, DSP_CMD_IN16);
sb_cmd(sb, ch->spd >> 8);
sb_cmd(sb, ch->spd & 0xff);
/* record format, length */
v = DSP_F16_AUTO | DSP_F16_FIFO_ON | DSP_F16_ADC;
v |= (ch->fmt & AFMT_16BIT)? DSP_DMA16 : DSP_DMA8;
sb_cmd(sb, v);
v = (AFMT_CHANNEL(ch->fmt) > 1)? DSP_F16_STEREO : 0;
v |= (ch->fmt & AFMT_SIGNED)? DSP_F16_SIGNED : 0;
sb_cmd2(sb, v, l);
sndbuf_dma(ch->buffer, PCMTRIG_START);
sb->bd_flags |= BD_F_DMARUN2;
}
sb_unlock(sb);
return 0;
}
/* channel interface */
static void *
sb16chan_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->buffer = b;
ch->dir = dir;
if (sndbuf_alloc(ch->buffer, sb->parent_dmat, 0, sb->bufsize) != 0)
return NULL;
return ch;
}
static int
sb16chan_setformat(kobj_t obj, void *data, u_int32_t format)
{
struct sb_chinfo *ch = data;
struct sb_info *sb = ch->parent;
ch->fmt = format;
sb->prio = ch->dir;
sb->prio16 = (ch->fmt & AFMT_16BIT)? 1 : 0;
return 0;
}
static u_int32_t
sb16chan_setspeed(kobj_t obj, void *data, u_int32_t speed)
{
struct sb_chinfo *ch = data;
ch->spd = speed;
return speed;
}
static u_int32_t
sb16chan_setblocksize(kobj_t obj, void *data, u_int32_t blocksize)
{
struct sb_chinfo *ch = data;
ch->blksz = blocksize;
return ch->blksz;
}
static int
sb16chan_trigger(kobj_t obj, void *data, int go)
{
struct sb_chinfo *ch = data;
struct sb_info *sb = ch->parent;
if (!PCMTRIG_COMMON(go))
return 0;
if (go == PCMTRIG_START)
ch->run = 1;
else
ch->run = 0;
sb_setup(sb);
return 0;
}
static u_int32_t
sb16chan_getptr(kobj_t obj, void *data)
{
struct sb_chinfo *ch = data;
return sndbuf_dmaptr(ch->buffer);
}
static struct pcmchan_caps *
sb16chan_getcaps(kobj_t obj, void *data)
{
struct sb_chinfo *ch = data;
struct sb_info *sb = ch->parent;
if ((sb->prio == 0) || (sb->prio == ch->dir))
return &sb16x_caps;
else
return sb->prio16? &sb16_caps8 : &sb16_caps16;
}
static int
sb16chan_resetdone(kobj_t obj, void *data)
{
struct sb_chinfo *ch = data;
struct sb_info *sb = ch->parent;
sb->prio = 0;
return 0;
}
static kobj_method_t sb16chan_methods[] = {
KOBJMETHOD(channel_init, sb16chan_init),
KOBJMETHOD(channel_resetdone, sb16chan_resetdone),
KOBJMETHOD(channel_setformat, sb16chan_setformat),
KOBJMETHOD(channel_setspeed, sb16chan_setspeed),
KOBJMETHOD(channel_setblocksize, sb16chan_setblocksize),
KOBJMETHOD(channel_trigger, sb16chan_trigger),
KOBJMETHOD(channel_getptr, sb16chan_getptr),
KOBJMETHOD(channel_getcaps, sb16chan_getcaps),
KOBJMETHOD_END
};
CHANNEL_DECLARE(sb16chan);
/************************************************************/
static int
sb16_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_SB16) {
snprintf(buf, sizeof buf, "SB16 DSP %d.%02d%s", (int) ver >> 8, (int) ver & 0xff,
(f & BD_F_SB16X)? " (ViBRA16X)" : "");
device_set_desc_copy(dev, buf);
return 0;
} else
return (ENXIO);
}
static int
sb16_attach(device_t dev)
{
struct sb_info *sb;
uintptr_t ver;
char status[SND_STATUSLEN], status2[SND_STATUSLEN];
sb = malloc(sizeof(*sb), M_DEVBUF, M_WAITOK | M_ZERO);
sb->parent_dev = device_get_parent(dev);
BUS_READ_IVAR(sb->parent_dev, dev, 1, &ver);
sb->bd_id = ver & 0x0000ffff;
sb->bd_flags = (ver & 0xffff0000) >> 16;
sb->bufsize = pcm_getbuffersize(dev, 4096, SB16_BUFFSIZE, 65536);
if (sb16_alloc_resources(sb, dev))
goto no;
sb_lock(sb);
if (sb_reset_dsp(sb)) {
sb_unlock(sb);
goto no;
}
sb_unlock(sb);
if (mixer_init(dev, &sb16mix_mixer_class, sb))
goto no;
if (snd_setup_intr(dev, sb->irq, 0, sb_intr, sb, &sb->ih))
goto no;
if (sb->bd_flags & BD_F_SB16X)
pcm_setflags(dev, pcm_getflags(dev) | SD_F_SIMPLEX);
sb->prio = 0;
if (bus_dma_tag_create(/*parent*/bus_get_dma_tag(dev), /*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;
}
if (!(pcm_getflags(dev) & SD_F_SIMPLEX))
snprintf(status2, SND_STATUSLEN, ":%ld", rman_get_start(sb->drq2));
else
status2[0] = '\0';
snprintf(status, SND_STATUSLEN, "at io 0x%lx irq %ld drq %ld%s bufsz %u %s",
rman_get_start(sb->io_base), rman_get_start(sb->irq),
rman_get_start(sb->drq1), status2, sb->bufsize,
PCM_KLDSTRING(snd_sb16));
if (pcm_register(dev, sb, 1, 1))
goto no;
pcm_addchan(dev, PCMDIR_REC, &sb16chan_class, sb);
pcm_addchan(dev, PCMDIR_PLAY, &sb16chan_class, sb);
pcm_setstatus(dev, status);
return 0;
no:
sb16_release_resources(sb, dev);
return ENXIO;
}
static int
sb16_detach(device_t dev)
{
int r;
struct sb_info *sb;
r = pcm_unregister(dev);
if (r)
return r;
sb = pcm_getdevinfo(dev);
sb16_release_resources(sb, dev);
return 0;
}
static device_method_t sb16_methods[] = {
/* Device interface */
DEVMETHOD(device_probe, sb16_probe),
DEVMETHOD(device_attach, sb16_attach),
DEVMETHOD(device_detach, sb16_detach),
{ 0, 0 }
};
static driver_t sb16_driver = {
"pcm",
sb16_methods,
PCM_SOFTC_SIZE,
};
DRIVER_MODULE(snd_sb16, sbc, sb16_driver, pcm_devclass, 0, 0);
MODULE_DEPEND(snd_sb16, sound, SOUND_MINVER, SOUND_PREFVER, SOUND_MAXVER);
MODULE_DEPEND(snd_sb16, snd_sbc, 1, 1, 1);
MODULE_VERSION(snd_sb16, 1);
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