336 lines
9.0 KiB
C
336 lines
9.0 KiB
C
/*
|
|
* Copyright (c) 1999 Cameron Grant <gandalf@vilnya.demon.co.uk>
|
|
* 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/sound/pcm/sound.h>
|
|
#include <dev/sound/pcm/ac97.h>
|
|
|
|
#define AC97_MUTE 0x8000
|
|
|
|
#define AC97_REG_RESET 0x00
|
|
#define AC97_MIX_MASTER 0x02
|
|
#define AC97_MIX_PHONES 0x04
|
|
#define AC97_MIX_MONO 0x06
|
|
#define AC97_MIX_TONE 0x08
|
|
#define AC97_MIX_BEEP 0x0a
|
|
#define AC97_MIX_PHONE 0x0c
|
|
#define AC97_MIX_MIC 0x0e
|
|
#define AC97_MIX_LINE 0x10
|
|
#define AC97_MIX_CD 0x12
|
|
#define AC97_MIX_VIDEO 0x14
|
|
#define AC97_MIX_AUX 0x16
|
|
#define AC97_MIX_PCM 0x18
|
|
#define AC97_REG_RECSEL 0x1a
|
|
#define AC97_MIX_RGAIN 0x1c
|
|
#define AC97_MIX_MGAIN 0x1e
|
|
#define AC97_REG_GEN 0x20
|
|
#define AC97_REG_3D 0x22
|
|
#define AC97_REG_POWER 0x26
|
|
#define AC97_REG_ID1 0x7c
|
|
#define AC97_REG_ID2 0x7e
|
|
|
|
struct ac97mixtable_entry {
|
|
int reg:8;
|
|
unsigned bits:4;
|
|
unsigned ofs:4;
|
|
unsigned stereo:1;
|
|
unsigned mute:1;
|
|
unsigned recidx:4;
|
|
unsigned mask:1;
|
|
};
|
|
|
|
struct ac97_info {
|
|
ac97_read *read;
|
|
ac97_write *write;
|
|
void *devinfo;
|
|
char id[4];
|
|
char rev;
|
|
unsigned caps, se;
|
|
struct ac97mixtable_entry mix[32];
|
|
};
|
|
|
|
struct ac97_codecid {
|
|
u_int32_t id;
|
|
char *name;
|
|
};
|
|
|
|
static const struct ac97mixtable_entry ac97mixtable_default[32] = {
|
|
[SOUND_MIXER_VOLUME] = { AC97_MIX_MASTER, 5, 0, 1, 1, 6, 0 },
|
|
[SOUND_MIXER_BASS] = { AC97_MIX_TONE, 4, 8, 0, 0, 0, 1 },
|
|
[SOUND_MIXER_TREBLE] = { AC97_MIX_TONE, 4, 0, 0, 0, 0, 1 },
|
|
[SOUND_MIXER_PCM] = { AC97_MIX_PCM, 5, 0, 1, 1, 0, 0 },
|
|
[SOUND_MIXER_SPEAKER] = { AC97_MIX_BEEP, 4, 1, 0, 1, 0, 0 },
|
|
[SOUND_MIXER_LINE] = { AC97_MIX_LINE, 5, 0, 1, 1, 5, 0 },
|
|
[SOUND_MIXER_MIC] = { AC97_MIX_MIC, 5, 0, 0, 1, 1, 0 },
|
|
[SOUND_MIXER_CD] = { AC97_MIX_CD, 5, 0, 1, 1, 2, 0 },
|
|
[SOUND_MIXER_LINE1] = { AC97_MIX_AUX, 5, 0, 1, 1, 4, 0 },
|
|
[SOUND_MIXER_VIDEO] = { AC97_MIX_VIDEO, 5, 0, 1, 1, 3, 0 },
|
|
[SOUND_MIXER_RECLEV] = { -AC97_MIX_RGAIN, 4, 0, 1, 1, 0, 0 }
|
|
};
|
|
|
|
static const unsigned ac97mixdevs =
|
|
SOUND_MASK_VOLUME |
|
|
SOUND_MASK_PCM | SOUND_MASK_SPEAKER | SOUND_MASK_LINE |
|
|
SOUND_MASK_MIC | SOUND_MASK_CD | SOUND_MASK_LINE1 |
|
|
SOUND_MASK_VIDEO | SOUND_MASK_RECLEV;
|
|
|
|
static const unsigned ac97recdevs =
|
|
SOUND_MASK_VOLUME | SOUND_MASK_LINE | SOUND_MASK_MIC |
|
|
SOUND_MASK_CD | SOUND_MASK_LINE1 | SOUND_MASK_VIDEO;
|
|
|
|
static struct ac97_codecid ac97codecid[] = {
|
|
{ 0x414B4D00, "Asahi Kasei AK4540" },
|
|
{ 0x43525900, "Cirrus Logic CS4297" },
|
|
{ 0x83847600, "SigmaTel STAC????" },
|
|
{ 0x83847604, "SigmaTel STAC9701/3/4/5" },
|
|
{ 0x83847605, "SigmaTel STAC9704" },
|
|
{ 0x83847608, "SigmaTel STAC9708" },
|
|
{ 0x83847609, "SigmaTel STAC9721" },
|
|
{ 0, NULL }
|
|
};
|
|
|
|
static char *ac97enhancement[] = {
|
|
"",
|
|
"Analog Devices Phat Stereo",
|
|
"Creative Stereo Enhancement",
|
|
"National Semi 3D Stereo Enhancement",
|
|
"Yamaha Ymersion",
|
|
"BBE 3D Stereo Enhancement",
|
|
"Crystal Semi 3D Stereo Enhancement",
|
|
"Qsound QXpander",
|
|
"Spatializer 3D Stereo Enhancement",
|
|
"SRS 3D Stereo Enhancement",
|
|
"Platform Tech 3D Stereo Enhancement",
|
|
"AKM 3D Audio",
|
|
"Aureal Stereo Enhancement",
|
|
"Aztech 3D Enhancement",
|
|
"Binaura 3D Audio Enhancement",
|
|
"ESS Technology Stereo Enhancement",
|
|
"Harman International VMAx",
|
|
"Nvidea 3D Stereo Enhancement",
|
|
"Philips Incredible Sound",
|
|
"Texas Instruments 3D Stereo Enhancement",
|
|
"VLSI Technology 3D Stereo Enhancement",
|
|
"TriTech 3D Stereo Enhancement",
|
|
"Realtek 3D Stereo Enhancement",
|
|
"Samsung 3D Stereo Enhancement",
|
|
"Wolfson Microelectronics 3D Enhancement",
|
|
"Delta Integration 3D Enhancement",
|
|
"SigmaTel 3D Enhancement",
|
|
"Reserved 27",
|
|
"Rockwell 3D Stereo Enhancement",
|
|
"Reserved 29",
|
|
"Reserved 30",
|
|
"Reserved 31"
|
|
};
|
|
|
|
static char *ac97feature[] = {
|
|
"mic channel",
|
|
"reserved",
|
|
"tone",
|
|
"simulated stereo",
|
|
"headphone",
|
|
"bass boost",
|
|
"18 bit DAC",
|
|
"20 bit DAC",
|
|
"18 bit ADC",
|
|
"20 bit ADC"
|
|
};
|
|
|
|
static int
|
|
ac97_setrecsrc(struct ac97_info *codec, int channel)
|
|
{
|
|
struct ac97mixtable_entry *e = &codec->mix[channel];
|
|
if (e->recidx > 0) {
|
|
int val = e->recidx - 1;
|
|
val |= val << 8;
|
|
codec->write(codec->devinfo, AC97_REG_RECSEL, val);
|
|
return 0;
|
|
} else return -1;
|
|
}
|
|
|
|
static int
|
|
ac97_setmixer(struct ac97_info *codec, unsigned channel, unsigned left, unsigned right)
|
|
{
|
|
struct ac97mixtable_entry *e = &codec->mix[channel];
|
|
if (e->reg != 0) {
|
|
int max, val, reg = (e->reg >= 0)? e->reg : -e->reg;
|
|
|
|
if (!e->stereo) right = left;
|
|
if (e->reg > 0) {
|
|
left = 100 - left;
|
|
right = 100 - right;
|
|
}
|
|
|
|
max = (1 << e->bits) - 1;
|
|
left = (left * max) / 100;
|
|
right = (right * max) / 100;
|
|
|
|
val = (left << 8) | right;
|
|
|
|
left = (left * 100) / max;
|
|
right = (right * 100) / max;
|
|
|
|
if (e->reg > 0) {
|
|
left = 100 - left;
|
|
right = 100 - right;
|
|
}
|
|
|
|
if (!e->stereo) {
|
|
val &= max;
|
|
val <<= e->ofs;
|
|
if (e->mask) {
|
|
int cur = codec->read(codec->devinfo, e->reg);
|
|
val |= cur & ~(max << e->ofs);
|
|
}
|
|
}
|
|
if (left == 0 && right == 0 && e->mute == 1) val = AC97_MUTE;
|
|
codec->write(codec->devinfo, reg, val);
|
|
return left | (right << 8);
|
|
} else return -1;
|
|
}
|
|
|
|
#if 0
|
|
static int
|
|
ac97_getmixer(struct ac97_info *codec, int channel)
|
|
{
|
|
struct ac97mixtable_entry *e = &codec->mix[channel];
|
|
if (channel < SOUND_MIXER_NRDEVICES && e->reg != 0) {
|
|
int max, val, volume;
|
|
|
|
max = (1 << e->bits) - 1;
|
|
val = codec->read(codec->devinfo, e->reg);
|
|
if (val == AC97_MUTE && e->mute == 1) volume = 0;
|
|
else {
|
|
if (e->stereo == 0) val >>= e->ofs;
|
|
val &= max;
|
|
volume = (val * 100) / max;
|
|
if (e->reg > 0) volume = 100 - volume;
|
|
}
|
|
return volume;
|
|
} else return -1;
|
|
}
|
|
#endif
|
|
|
|
static unsigned
|
|
ac97_init(struct ac97_info *codec)
|
|
{
|
|
unsigned i, j;
|
|
u_int32_t id;
|
|
|
|
for (i = 0; i < 32; i++) codec->mix[i] = ac97mixtable_default[i];
|
|
|
|
codec->write(codec->devinfo, AC97_REG_POWER, 0);
|
|
codec->write(codec->devinfo, AC97_REG_RESET, 0);
|
|
DELAY(10000);
|
|
|
|
i = codec->read(codec->devinfo, AC97_REG_RESET);
|
|
codec->caps = i & 0x03ff;
|
|
codec->se = (i & 0x7c00) >> 10;
|
|
|
|
id = (codec->read(codec->devinfo, AC97_REG_ID1) << 16) |
|
|
codec->read(codec->devinfo, AC97_REG_ID2);
|
|
codec->rev = id & 0x000000ff;
|
|
|
|
codec->write(codec->devinfo, AC97_MIX_MASTER, 0x20);
|
|
if ((codec->read(codec->devinfo, AC97_MIX_MASTER) & 0x20) == 0x20)
|
|
codec->mix[SOUND_MIXER_VOLUME].bits++;
|
|
codec->write(codec->devinfo, AC97_MIX_MASTER, 0x00);
|
|
|
|
if (bootverbose) {
|
|
printf("ac97: codec id 0x%8x", id);
|
|
for (i = 0; ac97codecid[i].id; i++) {
|
|
if (ac97codecid[i].id == id) printf(" (%s)", ac97codecid[i].name);
|
|
}
|
|
printf("\nac97: codec features ");
|
|
for (i = j = 0; i < 10; i++) {
|
|
if (codec->caps & (1 << i)) {
|
|
printf("%s%s", j? ", " : "", ac97feature[i]);
|
|
j++;
|
|
}
|
|
}
|
|
printf("%s%d bit master volume", j? ", " : "", codec->mix[SOUND_MIXER_VOLUME].bits);
|
|
printf("%s%s\n", j? ", " : "", ac97enhancement[codec->se]);
|
|
}
|
|
|
|
if ((codec->read(codec->devinfo, AC97_REG_POWER) & 2) == 0)
|
|
printf("ac97: dac not ready\n");
|
|
return 0;
|
|
}
|
|
|
|
struct ac97_info *
|
|
ac97_create(void *devinfo, ac97_read *rd, ac97_write *wr)
|
|
{
|
|
struct ac97_info *codec;
|
|
|
|
codec = (struct ac97_info *)malloc(sizeof *codec, M_DEVBUF, M_NOWAIT);
|
|
if (codec != NULL) {
|
|
codec->read = rd;
|
|
codec->write = wr;
|
|
codec->devinfo = devinfo;
|
|
}
|
|
return codec;
|
|
}
|
|
|
|
static int
|
|
ac97mix_init(snd_mixer *m)
|
|
{
|
|
struct ac97_info *codec = mix_getdevinfo(m);
|
|
if (codec == NULL) return -1;
|
|
ac97_init(codec);
|
|
mix_setdevs(m, ac97mixdevs | ((codec->caps & 4)? SOUND_MASK_BASS | SOUND_MASK_TREBLE : 0));
|
|
mix_setrecdevs(m, ac97recdevs);
|
|
return 0;
|
|
}
|
|
|
|
static int
|
|
ac97mix_set(snd_mixer *m, unsigned dev, unsigned left, unsigned right)
|
|
{
|
|
struct ac97_info *codec = mix_getdevinfo(m);
|
|
if (codec == NULL) return -1;
|
|
return ac97_setmixer(codec, dev, left, right);
|
|
}
|
|
|
|
static int
|
|
ac97mix_setrecsrc(snd_mixer *m, u_int32_t src)
|
|
{
|
|
int i;
|
|
struct ac97_info *codec = mix_getdevinfo(m);
|
|
if (codec == NULL) return -1;
|
|
for (i = 0; i < SOUND_MIXER_NRDEVICES; i++)
|
|
if ((src & (1 << i)) != 0) break;
|
|
return (ac97_setrecsrc(codec, i) == 0)? 1 << i : -1;
|
|
}
|
|
|
|
snd_mixer ac97_mixer = {
|
|
"AC97 mixer",
|
|
ac97mix_init,
|
|
ac97mix_set,
|
|
ac97mix_setrecsrc,
|
|
};
|
|
|