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
265 lines
6.0 KiB
C
265 lines
6.0 KiB
C
/*
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* sound/ics2101.c
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*
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* Driver for the ICS2101 mixer of GUS v3.7.
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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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*/
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#include "sound_config.h"
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#if defined(CONFIGURE_SOUNDCARD) && !defined(EXCLUDE_GUS)
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#include "ultrasound.h"
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#include "gus_hw.h"
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#define MIX_DEVS (SOUND_MASK_MIC|SOUND_MASK_LINE| \
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SOUND_MASK_SYNTH| \
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SOUND_MASK_CD | SOUND_MASK_VOLUME)
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extern int gus_base;
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static int volumes[ICS_MIXDEVS];
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static int left_fix[ICS_MIXDEVS] =
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{1, 1, 1, 2, 1, 2};
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static int right_fix[ICS_MIXDEVS] =
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{2, 2, 2, 1, 2, 1};
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static int
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scale_vol (int vol)
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{
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#if 1
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/*
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* Experimental volume scaling by Risto Kankkunen.
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* This should give smoother volume response than just
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* a plain multiplication.
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*/
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int e;
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if (vol < 0)
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vol = 0;
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if (vol > 100)
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vol = 100;
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vol = (31 * vol + 50) / 100;
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e = 0;
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if (vol)
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{
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while (vol < 16)
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{
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vol <<= 1;
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e--;
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}
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vol -= 16;
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e += 7;
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}
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return ((e << 4) + vol);
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#else
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return ((vol * 127) + 50) / 100;
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#endif
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}
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static void
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write_mix (int dev, int chn, int vol)
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{
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int *selector;
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unsigned long flags;
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int ctrl_addr = dev << 3;
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int attn_addr = dev << 3;
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vol = scale_vol (vol);
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if (chn == CHN_LEFT)
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{
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selector = left_fix;
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ctrl_addr |= 0x00;
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attn_addr |= 0x02;
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}
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else
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{
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selector = right_fix;
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ctrl_addr |= 0x01;
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attn_addr |= 0x03;
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}
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DISABLE_INTR (flags);
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OUTB (ctrl_addr, u_MixSelect);
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OUTB (selector[dev], u_MixData);
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OUTB (attn_addr, u_MixSelect);
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OUTB ((unsigned char) vol, u_MixData);
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RESTORE_INTR (flags);
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}
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static int
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set_volumes (int dev, int vol)
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{
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int left = vol & 0x00ff;
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int right = (vol >> 8) & 0x00ff;
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if (left < 0)
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left = 0;
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if (left > 100)
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left = 100;
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if (right < 0)
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right = 0;
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if (right > 100)
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right = 100;
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write_mix (dev, CHN_LEFT, left);
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write_mix (dev, CHN_RIGHT, right);
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vol = left + (right << 8);
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volumes[dev] = vol;
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return vol;
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}
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static int
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ics2101_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 gus_default_mixer_ioctl (dev, cmd, arg);
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break;
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case SOUND_MIXER_MIC:
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return IOCTL_OUT (arg, set_volumes (DEV_MIC, IOCTL_IN (arg)));
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break;
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case SOUND_MIXER_CD:
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return IOCTL_OUT (arg, set_volumes (DEV_CD, IOCTL_IN (arg)));
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break;
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case SOUND_MIXER_LINE:
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return IOCTL_OUT (arg, set_volumes (DEV_LINE, IOCTL_IN (arg)));
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break;
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case SOUND_MIXER_SYNTH:
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return IOCTL_OUT (arg, set_volumes (DEV_GF1, IOCTL_IN (arg)));
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break;
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case SOUND_MIXER_VOLUME:
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return IOCTL_OUT (arg, set_volumes (DEV_VOL, IOCTL_IN (arg)));
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break;
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default:
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return RET_ERROR (EINVAL);
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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 gus_default_mixer_ioctl (dev, cmd, arg);
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break;
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case SOUND_MIXER_DEVMASK:
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return IOCTL_OUT (arg, MIX_DEVS);
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break;
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case SOUND_MIXER_STEREODEVS:
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return IOCTL_OUT (arg, SOUND_MASK_LINE | SOUND_MASK_CD |
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SOUND_MASK_SYNTH | SOUND_MASK_VOLUME |
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SOUND_MASK_MIC);
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break;
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case SOUND_MIXER_RECMASK:
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return IOCTL_OUT (arg, SOUND_MASK_MIC | SOUND_MASK_LINE);
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break;
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case SOUND_MIXER_CAPS:
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return IOCTL_OUT (arg, 0);
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break;
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case SOUND_MIXER_MIC:
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return IOCTL_OUT (arg, volumes[DEV_MIC]);
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break;
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case SOUND_MIXER_LINE:
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return IOCTL_OUT (arg, volumes[DEV_LINE]);
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break;
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case SOUND_MIXER_CD:
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return IOCTL_OUT (arg, volumes[DEV_CD]);
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break;
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case SOUND_MIXER_VOLUME:
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return IOCTL_OUT (arg, volumes[DEV_VOL]);
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break;
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case SOUND_MIXER_SYNTH:
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return IOCTL_OUT (arg, volumes[DEV_GF1]);
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break;
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default:
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return RET_ERROR (EINVAL);
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}
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}
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return RET_ERROR (EINVAL);
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}
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static struct mixer_operations ics2101_mixer_operations =
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{
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"ICS2101 Multimedia Mixer",
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ics2101_mixer_ioctl
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};
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long
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ics2101_mixer_init (long mem_start)
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{
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int i;
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if (num_mixers < MAX_MIXER_DEV)
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{
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mixer_devs[num_mixers++] = &ics2101_mixer_operations;
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/*
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* Some GUS v3.7 cards had some channels flipped. Disable
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* the flipping feature if the model id is other than 5.
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*/
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if (INB (u_MixSelect) != 5)
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{
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for (i = 0; i < ICS_MIXDEVS; i++)
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left_fix[i] = 1;
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for (i = 0; i < ICS_MIXDEVS; i++)
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right_fix[i] = 2;
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}
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set_volumes (DEV_GF1, 0x5a5a);
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set_volumes (DEV_CD, 0x5a5a);
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set_volumes (DEV_MIC, 0x0000);
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set_volumes (DEV_LINE, 0x5a5a);
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set_volumes (DEV_VOL, 0x5a5a);
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set_volumes (DEV_UNUSED, 0x0000);
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}
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return mem_start;
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}
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#endif
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