freebsd-dev/sys/i386/isa/sound/pas2_mixer.c
1999-12-20 18:05:01 +00:00

326 lines
9.0 KiB
C

/*
* sound/pas2_mixer.c
*
* Mixer routines for the Pro Audio Spectrum cards.
*
* Copyright by Hannu Savolainen 1993
*
* 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.
*
* $FreeBSD$
*/
#define _PAS2_MIXER_C_
#include <i386/isa/sound/sound_config.h>
#if defined(CONFIG_PAS)
#include <i386/isa/sound/pas_hw.h>
#define TRACE(what) /* (what) */
extern int translat_code;
extern char pas_model;
extern sound_os_info *pas_osp;
static int rec_devices = (SOUND_MASK_MIC); /* Default recording source */
static int mode_control = 0;
#define POSSIBLE_RECORDING_DEVICES (SOUND_MASK_SYNTH | SOUND_MASK_SPEAKER | SOUND_MASK_LINE | SOUND_MASK_MIC | \
SOUND_MASK_CD | SOUND_MASK_ALTPCM)
#define SUPPORTED_MIXER_DEVICES (SOUND_MASK_SYNTH | SOUND_MASK_PCM | SOUND_MASK_SPEAKER | SOUND_MASK_LINE | SOUND_MASK_MIC | \
SOUND_MASK_CD | SOUND_MASK_ALTPCM | SOUND_MASK_IMIX | \
SOUND_MASK_VOLUME | SOUND_MASK_BASS | SOUND_MASK_TREBLE | SOUND_MASK_RECLEV | \
SOUND_MASK_MUTE | SOUND_MASK_ENHANCE | SOUND_MASK_LOUD)
static u_short levels[SOUND_MIXER_NRDEVICES] =
{
0x3232, /* Master Volume */
0x3232, /* Bass */
0x3232, /* Treble */
0x5050, /* FM */
0x4b4b, /* PCM */
0x3232, /* PC Speaker */
0x4b4b, /* Ext Line */
0x4b4b, /* Mic */
0x4b4b, /* CD */
0x6464, /* Recording monitor */
0x4b4b, /* SB PCM */
0x6464 /* Recording level */
};
void mix_write(u_char data, int ioaddr);
void
mix_write(u_char data, int ioaddr)
{
/*
* The Revision D cards have a problem with their MVA508 interface.
* The kludge-o-rama fix is to make a 16-bit quantity with identical
* LSB and MSBs out of the output byte and to do a 16-bit out to the
* mixer port - 1. We need to do this because it isn't timing problem
* but chip access sequence problem.
*/
if (pas_model == PAS_16D) {
outw((ioaddr ^ translat_code) - 1, data | (data << 8));
outb(0, 0x80);
} else
pas_write(data, ioaddr);
}
static int
mixer_output(int right_vol, int left_vol, int div, int bits,
int mixer)
{ /* Input or output mixer */
int left = left_vol * div / 100;
int right = right_vol * div / 100;
if (bits & P_M_MV508_MIXER) { /* Select input or output mixer */
left |= mixer;
right |= mixer;
}
if (bits == P_M_MV508_BASS || bits == P_M_MV508_TREBLE) { /* Bass and treble are
* mono devices */
mix_write(P_M_MV508_ADDRESS | bits, PARALLEL_MIXER);
mix_write(left, PARALLEL_MIXER);
right_vol = left_vol;
} else {
mix_write(P_M_MV508_ADDRESS | P_M_MV508_LEFT | bits, PARALLEL_MIXER);
mix_write(left, PARALLEL_MIXER);
mix_write(P_M_MV508_ADDRESS | P_M_MV508_RIGHT | bits, PARALLEL_MIXER);
mix_write(right, PARALLEL_MIXER);
}
return (left_vol | (right_vol << 8));
}
static void
set_mode(int new_mode)
{
mix_write(P_M_MV508_ADDRESS | P_M_MV508_MODE, PARALLEL_MIXER);
mix_write(new_mode, PARALLEL_MIXER);
mode_control = new_mode;
}
static int
pas_mixer_set(int whichDev, u_int level)
{
int left, right, devmask, changed, i, mixer = 0;
TRACE(printf("static int pas_mixer_set(int whichDev = %d, u_int level = %X)\n", whichDev, level));
left = level & 0x7f;
right = (level & 0x7f00) >> 8;
if (whichDev < SOUND_MIXER_NRDEVICES) {
if ((1 << whichDev) & rec_devices)
mixer = P_M_MV508_INPUTMIX;
else
mixer = P_M_MV508_OUTPUTMIX;
}
switch (whichDev) {
case SOUND_MIXER_VOLUME: /* Master volume (0-63) */
levels[whichDev] = mixer_output(right, left, 63, P_M_MV508_MASTER_A, 0);
break;
/*
* Note! Bass and Treble are mono devices. Will use just the
* left channel.
*/
case SOUND_MIXER_BASS: /* Bass (0-12) */
levels[whichDev] = mixer_output(right, left, 12, P_M_MV508_BASS, 0);
break;
case SOUND_MIXER_TREBLE: /* Treble (0-12) */
levels[whichDev] = mixer_output(right, left, 12, P_M_MV508_TREBLE, 0);
break;
case SOUND_MIXER_SYNTH:/* Internal synthesizer (0-31) */
levels[whichDev] = mixer_output(right, left, 31, P_M_MV508_MIXER | P_M_MV508_FM, mixer);
break;
case SOUND_MIXER_PCM: /* PAS PCM (0-31) */
levels[whichDev] = mixer_output(right, left, 31, P_M_MV508_MIXER | P_M_MV508_PCM, mixer);
break;
case SOUND_MIXER_ALTPCM: /* SB PCM (0-31) */
levels[whichDev] = mixer_output(right, left, 31, P_M_MV508_MIXER | P_M_MV508_SB, mixer);
break;
case SOUND_MIXER_SPEAKER: /* PC speaker (0-31) */
levels[whichDev] = mixer_output(right, left, 31, P_M_MV508_MIXER | P_M_MV508_SPEAKER, mixer);
break;
case SOUND_MIXER_LINE: /* External line (0-31) */
levels[whichDev] = mixer_output(right, left, 31, P_M_MV508_MIXER | P_M_MV508_LINE, mixer);
break;
case SOUND_MIXER_CD: /* CD (0-31) */
levels[whichDev] = mixer_output(right, left, 31, P_M_MV508_MIXER | P_M_MV508_CDROM, mixer);
break;
case SOUND_MIXER_MIC: /* External microphone (0-31) */
levels[whichDev] = mixer_output(right, left, 31, P_M_MV508_MIXER | P_M_MV508_MIC, mixer);
break;
case SOUND_MIXER_IMIX: /* Recording monitor (0-31) (Output mixer
* only) */
levels[whichDev] = mixer_output(right, left, 31, P_M_MV508_MIXER | P_M_MV508_IMIXER,
P_M_MV508_OUTPUTMIX);
break;
case SOUND_MIXER_RECLEV: /* Recording level (0-15) */
levels[whichDev] = mixer_output(right, left, 15, P_M_MV508_MASTER_B, 0);
break;
case SOUND_MIXER_MUTE:
return 0;
break;
case SOUND_MIXER_ENHANCE:
i = 0;
level &= 0x7f;
if (level)
i = (level / 20) - 1;
mode_control &= ~P_M_MV508_ENHANCE_BITS;
mode_control |= P_M_MV508_ENHANCE_BITS;
set_mode(mode_control);
if (i)
i = (i + 1) * 20;
return i;
break;
case SOUND_MIXER_LOUD:
mode_control &= ~P_M_MV508_LOUDNESS;
if (level)
mode_control |= P_M_MV508_LOUDNESS;
set_mode(mode_control);
return !!level; /* 0 or 1 */
break;
case SOUND_MIXER_RECSRC:
devmask = level & POSSIBLE_RECORDING_DEVICES;
changed = devmask ^ rec_devices;
rec_devices = devmask;
for (i = 0; i < SOUND_MIXER_NRDEVICES; i++)
if (changed & (1 << i)) {
pas_mixer_set(i, levels[i]);
}
return rec_devices;
break;
default:
return -(EINVAL);
}
return (levels[whichDev]);
}
/*****/
static void
pas_mixer_reset(void)
{
int foo;
TRACE(printf("pas2_mixer.c: void pas_mixer_reset(void)\n"));
for (foo = 0; foo < SOUND_MIXER_NRDEVICES; foo++)
pas_mixer_set(foo, levels[foo]);
set_mode(P_M_MV508_LOUDNESS | P_M_MV508_ENHANCE_40);
}
static int
pas_mixer_ioctl(int dev, u_int cmd, ioctl_arg arg)
{
TRACE(printf("pas2_mixer.c: int pas_mixer_ioctl(u_int cmd = %X, u_int arg = %X)\n", cmd, arg));
if (((cmd >> 8) & 0xff) == 'M') {
if (cmd & IOC_IN)
return *(int *) arg = pas_mixer_set(cmd & 0xff, (*(int *) arg));
else { /* Read parameters */
switch (cmd & 0xff) {
case SOUND_MIXER_RECSRC:
return *(int *) arg = rec_devices;
break;
case SOUND_MIXER_STEREODEVS:
return *(int *) arg = SUPPORTED_MIXER_DEVICES & ~(SOUND_MASK_BASS | SOUND_MASK_TREBLE);
break;
case SOUND_MIXER_DEVMASK:
return *(int *) arg = SUPPORTED_MIXER_DEVICES;
break;
case SOUND_MIXER_RECMASK:
return *(int *) arg = POSSIBLE_RECORDING_DEVICES & SUPPORTED_MIXER_DEVICES;
break;
case SOUND_MIXER_CAPS:
return *(int *) arg = 0; /* No special
* capabilities */
break;
case SOUND_MIXER_MUTE:
return *(int *) arg = 0; /* No mute yet */
break;
case SOUND_MIXER_ENHANCE:
if (!(mode_control & P_M_MV508_ENHANCE_BITS))
return *(int *) arg = 0;
return *(int *) arg = ((mode_control & P_M_MV508_ENHANCE_BITS) + 1) * 20;
break;
case SOUND_MIXER_LOUD:
if (mode_control & P_M_MV508_LOUDNESS)
return *(int *) arg = 1;
return *(int *) arg = 0;
break;
default:
return *(int *) arg = levels[cmd & 0xff];
}
}
}
return -(EINVAL);
}
static struct mixer_operations pas_mixer_operations =
{
"Pro Audio Spectrum 16",
pas_mixer_ioctl
};
int
pas_init_mixer(void)
{
pas_mixer_reset();
if (num_mixers < MAX_MIXER_DEV)
mixer_devs[num_mixers++] = &pas_mixer_operations;
return 1;
}
#endif