392 lines
9.7 KiB
C
392 lines
9.7 KiB
C
#define _PAS2_MIXER_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.
|
|
*
|
|
* $Id: pas2_mixer.c,v 1.6 1994/08/02 07:40:24 davidg Exp $
|
|
*/
|
|
|
|
#include "sound_config.h"
|
|
|
|
#if defined(CONFIGURE_SOUNDCARD) && !defined(EXCLUDE_PAS)
|
|
|
|
#include "pas.h"
|
|
|
|
#define TRACE(what) /*
|
|
* * * (what) */
|
|
|
|
extern int translat_code;
|
|
|
|
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 unsigned 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 */
|
|
|
|
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 trebble 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));
|
|
}
|
|
|
|
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, unsigned int level)
|
|
{
|
|
int left, right, devmask, changed, i, mixer = 0;
|
|
|
|
TRACE (printk ("static int pas_mixer_set(int whichDev = %d, unsigned 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) (Only available *
|
|
* on the Output Mixer)
|
|
*/
|
|
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 RET_ERROR (EINVAL);
|
|
}
|
|
|
|
return (levels[whichDev]);
|
|
}
|
|
|
|
/*****/
|
|
|
|
static int
|
|
getmixer (int dev, int chn)
|
|
{
|
|
if (chn == P_M_MV508_RIGHT)
|
|
{
|
|
return (levels[dev] >> 8) & 0x7f;
|
|
}
|
|
else
|
|
{
|
|
return levels[dev] & 0x7f;
|
|
}
|
|
}
|
|
|
|
static void
|
|
pas_mixer_reset (void)
|
|
{
|
|
int foo;
|
|
|
|
TRACE (printk ("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);
|
|
}
|
|
|
|
int
|
|
pas_mixer_ioctl (int dev, unsigned int cmd, unsigned int arg)
|
|
{
|
|
TRACE (printk ("pas2_mixer.c: int pas_mixer_ioctl(unsigned int cmd = %X, unsigned int arg = %X)\n", cmd, arg));
|
|
|
|
if (((cmd >> 8) & 0xff) == 'M')
|
|
{
|
|
if (cmd & IOC_IN)
|
|
return IOCTL_OUT (arg, pas_mixer_set (cmd & 0xff, IOCTL_IN (arg)));
|
|
else
|
|
{ /*
|
|
* Read parameters
|
|
*/
|
|
|
|
switch (cmd & 0xff)
|
|
{
|
|
|
|
case SOUND_MIXER_RECSRC:
|
|
return IOCTL_OUT (arg, rec_devices);
|
|
break;
|
|
|
|
case SOUND_MIXER_STEREODEVS:
|
|
return IOCTL_OUT (arg, SUPPORTED_MIXER_DEVICES & ~(SOUND_MASK_BASS | SOUND_MASK_TREBLE));
|
|
break;
|
|
|
|
case SOUND_MIXER_DEVMASK:
|
|
return IOCTL_OUT (arg, SUPPORTED_MIXER_DEVICES);
|
|
break;
|
|
|
|
case SOUND_MIXER_RECMASK:
|
|
return IOCTL_OUT (arg, POSSIBLE_RECORDING_DEVICES & SUPPORTED_MIXER_DEVICES);
|
|
break;
|
|
|
|
case SOUND_MIXER_CAPS:
|
|
return IOCTL_OUT (arg, 0); /*
|
|
* No special capabilities
|
|
*/
|
|
break;
|
|
|
|
case SOUND_MIXER_MUTE:
|
|
return IOCTL_OUT (arg, 0); /*
|
|
* No mute yet
|
|
*/
|
|
break;
|
|
|
|
case SOUND_MIXER_ENHANCE:
|
|
if (!(mode_control & P_M_MV508_ENHANCE_BITS))
|
|
return IOCTL_OUT (arg, 0);
|
|
return IOCTL_OUT (arg, ((mode_control & P_M_MV508_ENHANCE_BITS) + 1) * 20);
|
|
break;
|
|
|
|
case SOUND_MIXER_LOUD:
|
|
if (mode_control & P_M_MV508_LOUDNESS)
|
|
return IOCTL_OUT (arg, 1);
|
|
return IOCTL_OUT (arg, 0);
|
|
break;
|
|
|
|
default:
|
|
return IOCTL_OUT (arg, levels[cmd & 0xff]);
|
|
}
|
|
}
|
|
}
|
|
return RET_ERROR (EINVAL);
|
|
}
|
|
|
|
static struct mixer_operations pas_mixer_operations =
|
|
{
|
|
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
|