NetBSD/sys/arch/x68k/dev/opm.c

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/* $NetBSD: opm.c,v 1.2 1996/05/21 15:32:34 oki Exp $ */
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/*
* Copyright (c) 1995 Masanobu Saitoh, Takuya Harakawa.
* All rights reserved.
*
* 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.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by Masanobu Saitoh.
* 4. Neither the name of the University nor of the Laboratory may be used
* to endorse or promote products derived from this software without
* specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE REGENTS 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 REGENTS 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 "fd.h"
/*#include "bsdaudio.h"*/
#include "bell.h"
#if ((NBSDAUDIO > 0) || (NFD > 0) || (NBELL > 0))
#include <sys/param.h>
#include <sys/systm.h>
#include <x68k/dev/opmreg.h>
#include <x68k/dev/bsd_audioreg.h>
#include <x68k/x68k/iodevice.h>
static u_char opmreg[0x100];
static struct opm_voice vdata[8];
void opm_set_voice(int, struct opm_voice *);
void opm_set_voice_sub(int, struct opm_operator *);
static inline void
writeopm(reg, dat)
int reg, dat;
{
while (OPM.data & 0x80);
OPM.reg = reg;
while (OPM.data & 0x80);
OPM.data = opmreg[reg] = dat;
}
static inline int
readopm(reg)
int reg;
{
return opmreg[reg];
}
void
adpcm_chgclk(clk)
u_char clk;
{
writeopm(0x1b, readopm(0x1b) & ~OPM1B_CT1MSK | clk);
}
void
fdc_force_ready(rdy)
u_char rdy;
{
writeopm(0x1b, readopm(0x1b) & ~OPM1B_CT2MSK | rdy);
}
void
opm_key_on(channel)
u_char channel;
{
writeopm(0x08, vdata[channel].sm << 3 | channel);
}
void
opm_key_off(channel)
u_char channel;
{
writeopm(0x08, channel);
}
void
opm_set_voice(channel, voice)
int channel;
struct opm_voice *voice;
{
bcopy(voice, &vdata[channel], sizeof(struct opm_voice));
opm_set_voice_sub(0x40 + channel, &voice->m1);
opm_set_voice_sub(0x48 + channel, &voice->m2);
opm_set_voice_sub(0x50 + channel, &voice->c1);
opm_set_voice_sub(0x58 + channel, &voice->c2);
writeopm(0x20 + channel, 0xc0 | (voice->fb & 0x7) << 3 | (voice->con & 0x7));
}
void
opm_set_voice_sub(reg, op)
register int reg;
struct opm_operator *op;
{
/* DT1/MUL */
writeopm(reg, (op->dt1 & 0x7) << 3 | (op->mul & 0x7));
/* TL */
writeopm(reg + 0x20, op->tl & 0x7f);
/* KS/AR */
writeopm(reg + 0x40, (op->ks & 0x3) << 6 | (op->ar & 0x1f));
/* AMS/D1R */
writeopm(reg + 0x60, (op->ame & 0x1) << 7 | (op->d1r & 0x1f));
/* DT2/D2R */
writeopm(reg + 0x80, (op->dt2 & 0x3) << 6 | (op->d2r & 0x1f));
/* D1L/RR */
writeopm(reg + 0xa0, (op->d1l & 0xf) << 4 | (op->rr & 0xf));
}
void
opm_set_volume(channel, volume)
int channel;
int volume;
{
int value;
switch (vdata[channel].con) {
case 7:
value = vdata[channel].m1.tl + volume;
writeopm(0x60 + channel, ((value > 0x7f) ? 0x7f : value));
case 6:
case 5:
value = vdata[channel].m2.tl + volume;
writeopm(0x68 + channel, ((value > 0x7f) ? 0x7f : value));
case 4:
value = vdata[channel].c1.tl + volume;
writeopm(0x70 + channel, ((value > 0x7f) ? 0x7f : value));
case 3:
case 2:
case 1:
case 0:
value = vdata[channel].c2.tl + volume;
writeopm(0x78 + channel, ((value > 0x7f) ? 0x7f : value));
}
}
void
opm_set_key(channel, tone)
int channel;
int tone;
{
writeopm(0x28 + channel, tone >> 8);
writeopm(0x30 + channel, tone & 0xff);
}
/*ARGSUSED*/
int
opmopen(dev, flag, mode)
dev_t dev;
{
return 0;
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}
/*ARGSUSED*/
int
opmclose(dev)
dev_t dev;
{
return 0;
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}
#endif