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Diffstat (limited to 'sys/i386/isa/sound/ics2101.c')
-rw-r--r-- | sys/i386/isa/sound/ics2101.c | 233 |
1 files changed, 0 insertions, 233 deletions
diff --git a/sys/i386/isa/sound/ics2101.c b/sys/i386/isa/sound/ics2101.c deleted file mode 100644 index 4df8bde..0000000 --- a/sys/i386/isa/sound/ics2101.c +++ /dev/null @@ -1,233 +0,0 @@ -/* - * sound/ics2101.c - * - * Driver for the ICS2101 mixer of GUS v3.7. - * - * Copyright by Hannu Savolainen 1994 - * - * 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. - * - */ - -#include <i386/isa/sound/sound_config.h> - -#if defined(CONFIG_GUS) - -#include <i386/isa/sound/ultrasound.h> -#include <i386/isa/sound/gus_hw.h> - -#define MIX_DEVS (SOUND_MASK_MIC|SOUND_MASK_LINE| \ - SOUND_MASK_SYNTH| \ - SOUND_MASK_CD | SOUND_MASK_VOLUME) - -extern sound_os_info *gus_osp; -extern int gus_base; -static int volumes[ICS_MIXDEVS]; -static int left_fix[ICS_MIXDEVS] = {1, 1, 1, 2, 1, 2}; -static int right_fix[ICS_MIXDEVS] = {2, 2, 2, 1, 2, 1}; - -static int -scale_vol(int vol) -{ - /* - * Experimental volume scaling by Risto Kankkunen. This should give - * smoother volume response than just a plain multiplication. - */ - int e; - - RANGE(vol, 0, 100); - vol = (31 * vol + 50) / 100; - e = 0; - if (vol) { - while (vol < 16) { - vol <<= 1; - e--; - } - vol -= 16; - e += 7; - } - return ((e << 4) + vol); -} - -static void -write_mix(int dev, int chn, int vol) -{ - int *selector; - unsigned long flags; - int ctrl_addr = dev << 3; - int attn_addr = dev << 3; - - vol = scale_vol(vol); - - if (chn == CHN_LEFT) { - selector = left_fix; - ctrl_addr |= 0x00; - attn_addr |= 0x02; - } else { - selector = right_fix; - ctrl_addr |= 0x01; - attn_addr |= 0x03; - } - - flags = splhigh(); - outb(u_MixSelect, ctrl_addr); - outb(u_MixData, selector[dev]); - outb(u_MixSelect, attn_addr); - outb(u_MixData, (unsigned char) vol); - splx(flags); -} - -static int -set_volumes(int dev, int vol) -{ - int left = vol & 0x00ff; - int right = (vol >> 8) & 0x00ff; - - RANGE (left, 0, 100); - RANGE (right, 0, 100); - - write_mix(dev, CHN_LEFT, left); - write_mix(dev, CHN_RIGHT, right); - - vol = left + (right << 8); - volumes[dev] = vol; - return vol; -} - -static int -ics2101_mixer_ioctl(int dev, unsigned int cmd, ioctl_arg arg) -{ - if (((cmd >> 8) & 0xff) == 'M') { - if (cmd & IOC_IN) - switch (cmd & 0xff) { - case SOUND_MIXER_RECSRC: - return gus_default_mixer_ioctl(dev, cmd, arg); - break; - - case SOUND_MIXER_MIC: - return *(int *) arg = set_volumes(DEV_MIC, (*(int *) arg)); - break; - - case SOUND_MIXER_CD: - return *(int *) arg = set_volumes(DEV_CD, (*(int *) arg)); - break; - - case SOUND_MIXER_LINE: - return *(int *) arg = set_volumes(DEV_LINE, (*(int *) arg)); - break; - - case SOUND_MIXER_SYNTH: - return *(int *) arg = set_volumes(DEV_GF1, (*(int *) arg)); - break; - - case SOUND_MIXER_VOLUME: - return *(int *) arg = set_volumes(DEV_VOL, (*(int *) arg)); - break; - - default: - return -(EINVAL); - } - else - switch (cmd & 0xff) { /* Return parameters */ - - case SOUND_MIXER_RECSRC: - return gus_default_mixer_ioctl(dev, cmd, arg); - break; - - case SOUND_MIXER_DEVMASK: - return *(int *) arg = MIX_DEVS; - break; - - case SOUND_MIXER_STEREODEVS: - return *(int *) arg = SOUND_MASK_LINE | SOUND_MASK_CD | - SOUND_MASK_SYNTH | SOUND_MASK_VOLUME | SOUND_MASK_MIC; - break; - - case SOUND_MIXER_RECMASK: - return *(int *) arg = SOUND_MASK_MIC | SOUND_MASK_LINE; - break; - - case SOUND_MIXER_CAPS: - return *(int *) arg = 0; - break; - - case SOUND_MIXER_MIC: - return *(int *) arg = volumes[DEV_MIC]; - break; - - case SOUND_MIXER_LINE: - return *(int *) arg = volumes[DEV_LINE]; - break; - - case SOUND_MIXER_CD: - return *(int *) arg = volumes[DEV_CD]; - break; - - case SOUND_MIXER_VOLUME: - return *(int *) arg = volumes[DEV_VOL]; - break; - - case SOUND_MIXER_SYNTH: - return *(int *) arg = volumes[DEV_GF1]; - break; - - default: - return -(EINVAL); - } - } - return -(EINVAL); -} - -static struct mixer_operations ics2101_mixer_operations = -{ - "ICS2101 Multimedia Mixer", - ics2101_mixer_ioctl -}; - -void -ics2101_mixer_init() -{ - int i; - - if (num_mixers < MAX_MIXER_DEV) { - mixer_devs[num_mixers++] = &ics2101_mixer_operations; - - /* - * Some GUS v3.7 cards had some channels flipped. Disable the - * flipping feature if the model id is other than 5. - */ - - if (inb(u_MixSelect) != 5) { - for (i = 0; i < ICS_MIXDEVS; i++) - left_fix[i] = 1; - for (i = 0; i < ICS_MIXDEVS; i++) - right_fix[i] = 2; - } - set_volumes(DEV_GF1, 0x5a5a); - set_volumes(DEV_CD, 0x5a5a); - set_volumes(DEV_MIC, 0x0000); - set_volumes(DEV_LINE, 0x5a5a); - set_volumes(DEV_VOL, 0x5a5a); - set_volumes(DEV_UNUSED, 0x0000); - } -} - -#endif |