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Do not allow the gain to be changed on an original SoundBlaster.

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This commit is contained in:
mycroft 1996-02-20 11:48:50 +00:00
parent d1b5c90fd6
commit 947cae817e
1 changed files with 15 additions and 14 deletions
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29
sys/dev/isa/sbdsp.c
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@ -1,4 +1,4 @@
/* $NetBSD: sbdsp.c,v 1.21 1996/02/20 11:15:15 mycroft Exp $ */
/* $NetBSD: sbdsp.c,v 1.22 1996/02/20 11:48:50 mycroft Exp $ */
/*
* Copyright (c) 1991-1993 Regents of the University of California.
@ -1212,6 +1212,9 @@ sbdsp_mixer_set_port(addr, cp)
DPRINTF(("sbdsp_mixer_set_port: port=%d num_channels=%d\n", cp->dev,
cp->un.value.num_channels));
if (!ISSBPROCLASS(sc))
return EINVAL;
/*
* Everything is a value except for SBPro BASS/TREBLE and
* RECORD_SOURCE
@ -1246,16 +1249,12 @@ sbdsp_mixer_set_port(addr, cp)
case SB_DAC_PORT:
case SB_FM_PORT:
case SB_CD_PORT:
if (!ISSBPROCLASS(sc))
return EINVAL;
case SB_MASTER_VOL:
switch (cp->un.value.num_channels) {
case 1:
gain = sbdsp_mono_vol(SBP_AGAIN_TO_SBGAIN(cp->un.value.level[AUDIO_MIXER_LEVEL_MONO]));
break;
case 2:
if (!ISSBPROCLASS(sc))
return EINVAL;
gain = sbdsp_stereo_vol(SBP_AGAIN_TO_SBGAIN(cp->un.value.level[AUDIO_MIXER_LEVEL_LEFT]),
SBP_AGAIN_TO_SBGAIN(cp->un.value.level[AUDIO_MIXER_LEVEL_RIGHT]));
break;
@ -1295,8 +1294,6 @@ sbdsp_mixer_set_port(addr, cp)
case SB_RECORD_SOURCE:
if (cp->type != AUDIO_MIXER_ENUM)
return EINVAL;
if (!ISSBPROCLASS(sc))
return EINVAL;
switch (cp->dev) {
case SB_TREBLE:
@ -1308,6 +1305,9 @@ sbdsp_mixer_set_port(addr, cp)
}
break;
default:
return EINVAL;
}
return (0);
@ -1323,6 +1323,9 @@ sbdsp_mixer_get_port(addr, cp)
DPRINTF(("sbdsp_mixer_get_port: port=%d", cp->dev));
if (!ISSBPROCLASS(sc))
return EINVAL;
switch (cp->dev) {
case SB_SPEAKER:
cp->dev = SB_MASTER_VOL;
@ -1345,16 +1348,12 @@ sbdsp_mixer_get_port(addr, cp)
case SB_DAC_PORT:
case SB_FM_PORT:
case SB_CD_PORT:
if (!ISSBPROCLASS(sc))
return EINVAL;
case SB_MASTER_VOL:
switch (cp->un.value.num_channels) {
case 1:
cp->un.value.level[AUDIO_MIXER_LEVEL_MONO] = SBP_SBGAIN_TO_AGAIN(gain);
break;
case 2:
if (!ISSBPROCLASS(sc))
return EINVAL;
cp->un.value.level[AUDIO_MIXER_LEVEL_LEFT] = SBP_LEFTGAIN(gain);
cp->un.value.level[AUDIO_MIXER_LEVEL_RIGHT] = SBP_RIGHTGAIN(gain);
break;
@ -1364,12 +1363,11 @@ sbdsp_mixer_get_port(addr, cp)
break;
}
break;
case SB_TREBLE:
case SB_BASS:
case SB_RECORD_SOURCE:
if (!ISSBPROCLASS(sc))
return EINVAL;
switch (cp->dev) {
case SB_TREBLE:
cp->un.ord = sbdsp_get_ifilter(addr) == SBP_TREBLE_EQ;
@ -1383,6 +1381,9 @@ sbdsp_mixer_get_port(addr, cp)
}
break;
default:
return EINVAL;
}
return (0);