ae28ee13b4
Amancio. There is some SoundSource support here that is primitive and probably doesn't work, but I'll let the two submitters let me know how my integration of that was since I don't have this card to test. I've only tested this on my GUS MAX since it's all I have. This all probably needs to be re-done anyway since we're widely variant from the original VOXWARE source in the current layout. Submitted by: Amancio Hasty and Jim Lowe Obtained from: Hannu Savolainen
588 lines
13 KiB
C
588 lines
13 KiB
C
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/*
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* sound/sb_mixer.c
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*
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* The low level mixer driver for the SoundBlaster Pro and SB16 cards.
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*
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* Copyright by Hannu Savolainen 1994
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are
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* met: 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer. 2.
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* Redistributions in binary form must reproduce the above copyright notice,
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* this list of conditions and the following disclaimer in the documentation
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* and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND ANY
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* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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* DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR
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* ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
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* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* Modified:
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* Hunyue Yau Jan 6 1994
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* Added code to support the Sound Galaxy NX Pro mixer.
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*
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*/
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#include "sound_config.h"
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#if defined(CONFIGURE_SOUNDCARD) && !defined(EXCLUDE_SB) && !defined(EXCLUDE_SBPRO)
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#define __SB_MIXER_C__
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#include "sb.h"
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#include "sb_mixer.h"
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#undef SB_TEST_IRQ
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extern int sbc_base;
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extern int Jazz16_detected;
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static int mixer_initialized = 0;
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static int supported_rec_devices;
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static int supported_devices;
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static int recmask = 0;
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static int mixer_model;
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static int mixer_caps;
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static mixer_tab *iomap;
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void
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sb_setmixer (unsigned int port, unsigned int value)
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{
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unsigned long flags;
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DISABLE_INTR (flags);
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OUTB ((unsigned char) (port & 0xff), MIXER_ADDR); /*
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* Select register
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*/
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tenmicrosec ();
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OUTB ((unsigned char) (value & 0xff), MIXER_DATA);
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tenmicrosec ();
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RESTORE_INTR (flags);
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}
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int
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sb_getmixer (unsigned int port)
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{
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int val;
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unsigned long flags;
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DISABLE_INTR (flags);
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OUTB ((unsigned char) (port & 0xff), MIXER_ADDR); /*
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* Select register
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*/
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tenmicrosec ();
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val = INB (MIXER_DATA);
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tenmicrosec ();
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RESTORE_INTR (flags);
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return val;
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}
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void
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sb_mixer_set_stereo (int mode)
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{
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if (!mixer_initialized)
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return;
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sb_setmixer (OUT_FILTER, ((sb_getmixer (OUT_FILTER) & ~STEREO_DAC)
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| (mode ? STEREO_DAC : MONO_DAC)));
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}
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/*
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* Returns:
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* 0 No mixer detected.
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* 1 Only a plain Sound Blaster Pro style mixer detected.
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* 2 The Sound Galaxy NX Pro mixer detected.
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*/
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static int
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detect_mixer (void)
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{
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#ifdef __SGNXPRO__
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int oldbass, oldtreble;
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#endif
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int retcode = 1;
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extern int sbc_major;
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/*
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* Detect the mixer by changing parameters of two volume channels. If the
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* values read back match with the values written, the mixer is there (is
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* it?)
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*/
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sb_setmixer (FM_VOL, 0xff);
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sb_setmixer (VOC_VOL, 0x33);
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if (sb_getmixer (FM_VOL) != 0xff)
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return 0; /*
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* No match
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*/
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if (sb_getmixer (VOC_VOL) != 0x33)
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return 0;
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#ifdef __SGNXPRO__
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/* Attempt to detect the SG NX Pro by check for valid bass/treble
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* registers.
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*/
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oldbass = sb_getmixer (BASS_LVL);
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oldtreble = sb_getmixer (TREBLE_LVL);
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sb_setmixer (BASS_LVL, 0xaa);
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sb_setmixer (TREBLE_LVL, 0x55);
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if ((sb_getmixer (BASS_LVL) != 0xaa) ||
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(sb_getmixer (TREBLE_LVL) != 0x55))
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{
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retcode = 1; /* 1 == Only SB Pro detected */
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}
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else
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retcode = 2; /* 2 == SG NX Pro detected */
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/* Restore register in either case since SG NX Pro has EEPROM with
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* 'preferred' values stored.
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*/
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sb_setmixer (BASS_LVL, oldbass);
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sb_setmixer (TREBLE_LVL, oldtreble);
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/*
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* If the SB version is 3.X (SB Pro), assume we have a SG NX Pro 16.
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* In this case it's good idea to disable the Disney Sound Source
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* compatibility mode. It's useless and just causes noise every time the
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* LPT-port is accessed.
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*
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* Also place the card into WSS mode.
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*/
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if (sbc_major == 3)
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{
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OUTB (0x01, sbc_base + 0x1c);
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OUTB (0x00, sbc_base + 0x1a);
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}
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#endif
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return retcode;
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}
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static void
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change_bits (unsigned char *regval, int dev, int chn, int newval)
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{
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unsigned char mask;
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int shift;
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mask = (1 << (*iomap)[dev][chn].nbits) - 1;
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newval = (int) ((newval * mask) + 50) / 100; /*
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* Scale it
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*/
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shift = (*iomap)[dev][chn].bitoffs - (*iomap)[dev][LEFT_CHN].nbits + 1;
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*regval &= ~(mask << shift); /*
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* Filter out the previous value
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*/
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*regval |= (newval & mask) << shift; /*
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* Set the new value
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*/
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}
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static int
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sb_mixer_get (int dev)
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{
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if (!((1 << dev) & supported_devices))
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return RET_ERROR (EINVAL);
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return levels[dev];
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}
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#ifdef JAZZ16
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static char smw_mix_regs[] = /* Left mixer registers */
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{
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0x0b, /* SOUND_MIXER_VOLUME */
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0x0d, /* SOUND_MIXER_BASS */
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0x0d, /* SOUND_MIXER_TREBLE */
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0x05, /* SOUND_MIXER_SYNTH */
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0x09, /* SOUND_MIXER_PCM */
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0x00, /* SOUND_MIXER_SPEAKER */
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0x03, /* SOUND_MIXER_LINE */
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0x01, /* SOUND_MIXER_MIC */
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0x07, /* SOUND_MIXER_CD */
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0x00, /* SOUND_MIXER_IMIX */
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0x00, /* SOUND_MIXER_ALTPCM */
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0x00, /* SOUND_MIXER_RECLEV */
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0x00, /* SOUND_MIXER_IGAIN */
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0x00, /* SOUND_MIXER_OGAIN */
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0x00, /* SOUND_MIXER_LINE1 */
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0x00, /* SOUND_MIXER_LINE2 */
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0x00 /* SOUND_MIXER_LINE3 */
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};
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static void
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smw_mixer_init (void)
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{
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int i;
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sb_setmixer (0x00, 0x18); /* Mute unused (Telephone) line */
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sb_setmixer (0x10, 0x38); /* Config register 2 */
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supported_devices = 0;
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for (i = 0; i < sizeof (smw_mix_regs); i++)
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if (smw_mix_regs[i] != 0)
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supported_devices |= (1 << i);
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supported_rec_devices = supported_devices &
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~(SOUND_MASK_BASS | SOUND_MASK_TREBLE | SOUND_MASK_PCM |
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SOUND_MASK_VOLUME);
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}
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static int
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smw_mixer_set (int dev, int value)
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{
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int left = value & 0x000000ff;
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int right = (value & 0x0000ff00) >> 8;
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int reg, val;
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if (left > 100)
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left = 100;
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if (right > 100)
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right = 100;
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if (dev > 31)
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return RET_ERROR (EINVAL);
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if (!(supported_devices & (1 << dev))) /* Not supported */
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return RET_ERROR (EINVAL);
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switch (dev)
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{
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case SOUND_MIXER_VOLUME:
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sb_setmixer (0x0b, 96 - (96 * left / 100)); /* 96=mute, 0=max */
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sb_setmixer (0x0c, 96 - (96 * right / 100));
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break;
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case SOUND_MIXER_BASS:
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case SOUND_MIXER_TREBLE:
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levels[dev] = left | (right << 8);
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/* Set left bass and treble values */
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val = ((levels[SOUND_MIXER_TREBLE] & 0xff) * 16 / 100) << 4;
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val |= ((levels[SOUND_MIXER_BASS] & 0xff) * 16 / 100) & 0x0f;
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sb_setmixer (0x0d, val);
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/* Set right bass and treble values */
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val = (((levels[SOUND_MIXER_TREBLE] >> 8) & 0xff) * 16 / 100) << 4;
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val |= (((levels[SOUND_MIXER_BASS] >> 8) & 0xff) * 16 / 100) & 0x0f;
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sb_setmixer (0x0e, val);
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break;
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default:
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reg = smw_mix_regs[dev];
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if (reg == 0)
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return RET_ERROR (EINVAL);
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sb_setmixer (reg, (24 - (24 * left / 100)) | 0x20); /* 24=mute, 0=max */
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sb_setmixer (reg + 1, (24 - (24 * right / 100)) | 0x40);
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}
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levels[dev] = left | (right << 8);
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return left | (right << 8);
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}
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#endif
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static int
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sb_mixer_set (int dev, int value)
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{
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int left = value & 0x000000ff;
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int right = (value & 0x0000ff00) >> 8;
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int regoffs;
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unsigned char val;
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#ifdef JAZZ16
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if (Jazz16_detected == 2)
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return smw_mixer_set (dev, value);
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#endif
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if (left > 100)
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left = 100;
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if (right > 100)
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right = 100;
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if (dev > 31)
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return RET_ERROR (EINVAL);
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if (!(supported_devices & (1 << dev))) /*
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* Not supported
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*/
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return RET_ERROR (EINVAL);
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regoffs = (*iomap)[dev][LEFT_CHN].regno;
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if (regoffs == 0)
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return RET_ERROR (EINVAL);
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val = sb_getmixer (regoffs);
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change_bits (&val, dev, LEFT_CHN, left);
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levels[dev] = left | (left << 8);
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if ((*iomap)[dev][RIGHT_CHN].regno != regoffs) /*
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* Change register
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*/
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{
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sb_setmixer (regoffs, val); /*
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* Save the old one
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*/
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regoffs = (*iomap)[dev][RIGHT_CHN].regno;
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if (regoffs == 0)
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return left | (left << 8); /*
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* Just left channel present
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*/
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val = sb_getmixer (regoffs); /*
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* Read the new one
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*/
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}
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change_bits (&val, dev, RIGHT_CHN, right);
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sb_setmixer (regoffs, val);
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levels[dev] = left | (right << 8);
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return left | (right << 8);
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}
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static void
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set_recsrc (int src)
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{
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sb_setmixer (RECORD_SRC, (sb_getmixer (RECORD_SRC) & ~7) | (src & 0x7));
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}
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static int
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set_recmask (int mask)
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{
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int devmask, i;
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unsigned char regimageL, regimageR;
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devmask = mask & supported_rec_devices;
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switch (mixer_model)
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{
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case 3:
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if (devmask != SOUND_MASK_MIC &&
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devmask != SOUND_MASK_LINE &&
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devmask != SOUND_MASK_CD)
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{ /*
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* More than one devices selected. Drop the *
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* previous selection
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*/
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devmask &= ~recmask;
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}
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if (devmask != SOUND_MASK_MIC &&
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devmask != SOUND_MASK_LINE &&
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devmask != SOUND_MASK_CD)
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{ /*
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* More than one devices selected. Default to
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* * mic
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*/
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devmask = SOUND_MASK_MIC;
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}
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if (devmask ^ recmask) /*
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* Input source changed
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*/
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{
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switch (devmask)
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{
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case SOUND_MASK_MIC:
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set_recsrc (SRC_MIC);
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break;
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case SOUND_MASK_LINE:
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set_recsrc (SRC_LINE);
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break;
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case SOUND_MASK_CD:
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set_recsrc (SRC_CD);
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break;
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default:
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set_recsrc (SRC_MIC);
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}
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}
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break;
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case 4:
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if (!devmask)
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devmask = SOUND_MASK_MIC;
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regimageL = regimageR = 0;
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for (i = 0; i < SOUND_MIXER_NRDEVICES; i++)
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if ((1 << i) & devmask)
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{
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regimageL |= sb16_recmasks_L[i];
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regimageR |= sb16_recmasks_R[i];
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}
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sb_setmixer (SB16_IMASK_L, regimageL);
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sb_setmixer (SB16_IMASK_R, regimageR);
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break;
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}
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recmask = devmask;
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return recmask;
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}
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static int
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sb_mixer_ioctl (int dev, unsigned int cmd, unsigned int arg)
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{
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if (((cmd >> 8) & 0xff) == 'M')
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{
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if (cmd & IOC_IN)
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switch (cmd & 0xff)
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{
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case SOUND_MIXER_RECSRC:
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return IOCTL_OUT (arg, set_recmask (IOCTL_IN (arg)));
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break;
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default:
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return IOCTL_OUT (arg, sb_mixer_set (cmd & 0xff, IOCTL_IN (arg)));
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}
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else
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switch (cmd & 0xff) /*
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* Return parameters
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*/
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{
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case SOUND_MIXER_RECSRC:
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return IOCTL_OUT (arg, recmask);
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break;
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case SOUND_MIXER_DEVMASK:
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return IOCTL_OUT (arg, supported_devices);
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break;
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case SOUND_MIXER_STEREODEVS:
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if (Jazz16_detected)
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return IOCTL_OUT (arg, supported_devices);
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else
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return IOCTL_OUT (arg, supported_devices &
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~(SOUND_MASK_MIC | SOUND_MASK_SPEAKER));
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break;
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case SOUND_MIXER_RECMASK:
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return IOCTL_OUT (arg, supported_rec_devices);
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break;
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case SOUND_MIXER_CAPS:
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return IOCTL_OUT (arg, mixer_caps);
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break;
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default:
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return IOCTL_OUT (arg, sb_mixer_get (cmd & 0xff));
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}
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}
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else
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return RET_ERROR (EINVAL);
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}
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static struct mixer_operations sb_mixer_operations =
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{
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"SoundBlaster",
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sb_mixer_ioctl
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};
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static void
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sb_mixer_reset (void)
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{
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int i;
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for (i = 0; i < SOUND_MIXER_NRDEVICES; i++)
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sb_mixer_set (i, levels[i]);
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set_recmask (SOUND_MASK_MIC);
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}
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/*
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* Returns a code depending on whether a SG NX Pro was detected.
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* 1 == Plain SB Pro
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* 2 == SG NX Pro detected.
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* 3 == SB16
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*
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* Used to update message.
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*/
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int
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sb_mixer_init (int major_model)
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{
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int mixer_type = 0;
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sb_setmixer (0x00, 0); /* Reset mixer */
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if (!(mixer_type = detect_mixer ()))
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return 0; /* No mixer. Why? */
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mixer_initialized = 1;
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mixer_model = major_model;
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switch (major_model)
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{
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case 3:
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mixer_caps = SOUND_CAP_EXCL_INPUT;
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#ifdef JAZZ16
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if (Jazz16_detected == 2) /* SM Wave */
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{
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supported_devices = 0;
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supported_rec_devices = 0;
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iomap = &sbpro_mix;
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smw_mixer_init ();
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mixer_type = 1;
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}
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else
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#endif
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#ifdef __SGNXPRO__
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if (mixer_type == 2) /* A SGNXPRO was detected */
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{
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supported_devices = SGNXPRO_MIXER_DEVICES;
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supported_rec_devices = SGNXPRO_RECORDING_DEVICES;
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iomap = &sgnxpro_mix;
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}
|
|
else
|
|
#endif
|
|
{
|
|
supported_devices = SBPRO_MIXER_DEVICES;
|
|
supported_rec_devices = SBPRO_RECORDING_DEVICES;
|
|
iomap = &sbpro_mix;
|
|
mixer_type = 1;
|
|
}
|
|
break;
|
|
|
|
case 4:
|
|
mixer_caps = 0;
|
|
supported_devices = SB16_MIXER_DEVICES;
|
|
supported_rec_devices = SB16_RECORDING_DEVICES;
|
|
iomap = &sb16_mix;
|
|
mixer_type = 3;
|
|
break;
|
|
|
|
default:
|
|
printk ("SB Warning: Unsupported mixer type\n");
|
|
return 0;
|
|
}
|
|
|
|
if (num_mixers < MAX_MIXER_DEV)
|
|
mixer_devs[num_mixers++] = &sb_mixer_operations;
|
|
sb_mixer_reset ();
|
|
return mixer_type;
|
|
}
|
|
|
|
#endif
|