/* $NetBSD: cmsreg.h,v 1.3 2005/12/11 12:22:02 christos Exp $ */ /* * Copyright (c) 2000 The NetBSD Foundation, Inc. * 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 the NetBSD * Foundation, Inc. and its contributors. * 4. Neither the name of The NetBSD Foundation nor the names of its * contributors may be used to endorse or promote products derived * from this software without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. 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 FOUNDATION 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. */ #define CMS_NVOICES 12 #define CMS_FIRST_NOTE 30 /* direct registers */ #define CMS_DATA0 0x00 /* for chip 0, voices 0-5 */ #define CMS_ADDR0 0x01 #define CMS_DATA1 0x02 /* for chip 1, voices 6-11 */ #define CMS_ADDR1 0x03 #define CMS_MREG 0x04 /* always returns 0x7f */ #define CMS_WREG 0x07 /* writable register */ #define CMS_RREG 0x0b /* readable register */ #define CMS_IOSIZE 16 /* * Note that for each register, if ports CMS_DATA1/CMS_ADDR1 are used * then the first voice is modified. If ports CMS_DATA2/CMS_ADDR2 are * used then the second voice is modified. */ /* * Each voice can have a volume between 0 and 15 on both left and * right channels. The high-order nibble is the right channel volume, * and the low-order nibble is the left channel volume. */ #define CMS_IREG_VOL0 0x00 #define CMS_IREG_VOL1 0x01 #define CMS_IREG_VOL2 0x02 #define CMS_IREG_VOL3 0x03 #define CMS_IREG_VOL4 0x04 #define CMS_IREG_VOL5 0x05 /* Frequency registers */ #define CMS_IREG_FREQ0 0x08 #define CMS_IREG_FREQ1 0x09 #define CMS_IREG_FREQ2 0x0a #define CMS_IREG_FREQ3 0x0b #define CMS_IREG_FREQ4 0x0c #define CMS_IREG_FREQ5 0x0d /* * Octave Registers: To get tones in higher octaves the octave * register for the voice must be set. Each octave register stores * the octave number for two voices. The high-order nibble is for * first voice and the low-order nibble is for the second voice. */ #define CMS_IREG_OCTAVE_1_0 0x10 #define CMS_IREG_OCTAVE_3_2 0x11 #define CMS_IREG_OCTAVE_5_4 0x12 #define CMS_IREG_FREQ_CTL 0x14 /* voice frequencies */ #define CMS_IREG_FREQ_ENBL0 0x01 /* setting the bit enables the voice */ #define CMS_IREG_FREQ_ENBL1 0x02 /* clearing the bit disables the voice */ #define CMS_IREG_FREQ_ENBL2 0x04 #define CMS_IREG_FREQ_ENBL3 0x08 #define CMS_IREG_FREQ_ENBL4 0x10 #define CMS_IREG_FREQ_ENBL5 0x20 /* * There are 4 noise generators, each noise generator can be connected * up to any of three voices: * * Noise generator 0: connected to voices 0,1,2 * 1: connected to voices 3,4,5 * 2: connected to voices 6,7,8 * 3: connected to voices 0,10,11 * * CMS_DATA1/CMS_ADDR1 access noise generators 0 and 1. Each noise * generator has two bits which control the noise generator rate. */ #define CMS_IREG_NOISE_CTL 0x15 /* noises */ #define CMS_IREG_NOISE_ENBL0 0x01 #define CMS_IREG_NOISE_ENBL1 0x02 #define CMS_IREG_NOISE_ENBL2 0x04 #define CMS_IREG_NOISE_ENBL3 0x08 #define CMS_IREG_NOISE_ENBL4 0x10 #define CMS_IREG_NOISE_ENBL5 0x20 #define CMS_IREG_NOISE_BW 0x16 #define CMS_IREG_NOISE_MASK0 0x03 /* bits for noise generator 0 */ #define CMS_IREG_NOISE_MASK1 0x30 /* bits for noise generator 1 */ /* the bits in the mask have the following meaning */ #define CMS_IREG_NOISE_MASK_28k 0 /* 28kHz */ #define CMS_IREG_NOISE_MASK_14k 1 /* 14kHz */ #define CMS_IREG_NOISE_MASK_7k 2 /* 6.8kHz */ #define CMS_IREG_SYS_CTL 0x1c #define CMS_IREG_SYS_ENBL 0x01 /* enable all channels */ #define CMS_IREG_SYS_RESET 0x02 /* reset and synchronise generators */ /* * Some useful macros */ #define CMS_WRITE(sc, chip, reg, val) \ do { \ (sc)->sc_shadowregs[((chip)<<5) + (reg)] = val; \ bus_space_write_1((sc)->sc_iot, (sc)->sc_ioh, \ CMS_ADDR0 + ((chip)<<1), (reg)); \ bus_space_write_1((sc)->sc_iot, (sc)->sc_ioh, \ CMS_DATA0 + ((chip)<<1), (val)); \ } while (0) #define CMS_READ(sc, chip, reg) ((sc)->sc_shadowregs[((chip)<<5) + (reg)]) #define CHAN_TO_CHIP(chan) ((chan)>5) #define CHAN_TO_VOICE(chan) ((chan)%6) #define OCTAVE_OFFSET(voice) ((voice)>>1) #define OCTAVE_SHIFT(voice) (((voice)&1)<<2)