opm.c revision 1.6
1 /* $NetBSD: opm.c,v 1.6 2001/05/02 13:00:20 minoura Exp $ */ 2 3 /* 4 * Copyright (c) 1995 Masanobu Saitoh, Takuya Harakawa. 5 * All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 3. All advertising materials mentioning features or use of this software 16 * must display the following acknowledgement: 17 * This product includes software developed by Masanobu Saitoh. 18 * 4. Neither the name of the University nor of the Laboratory may be used 19 * to endorse or promote products derived from this software without 20 * specific prior written permission. 21 * 22 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 23 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 24 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 25 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 26 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 27 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 28 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 29 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 30 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 31 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 32 * SUCH DAMAGE. 33 */ 34 35 /* 36 * Temporary implementation: not fully bus.h'fied. 37 */ 38 39 #include <sys/param.h> 40 #include <sys/systm.h> 41 #include <sys/device.h> 42 43 #include <machine/bus.h> 44 #include <machine/cpu.h> 45 46 #include <arch/x68k/dev/opmreg.h> 47 #include <arch/x68k/dev/intiovar.h> 48 49 struct opm_softc { 50 struct device sc_dev; 51 52 bus_space_tag_t sc_bst; 53 bus_space_handle_t sc_bht; 54 u_int8_t sc_regs[0x100]; 55 struct opm_voice sc_vdata[8]; 56 }; 57 58 struct opm_softc *opm0; /* XXX */ 59 60 static int opm_match __P((struct device *, struct cfdata *, void *)); 61 static void opm_attach __P((struct device *, struct device *, void *)); 62 63 struct cfattach opm_ca = { 64 sizeof (struct opm_softc), opm_match, opm_attach 65 }; 66 67 static int 68 opm_match(parent, cf, aux) 69 struct device *parent; 70 struct cfdata *cf; 71 void *aux; 72 { 73 struct intio_attach_args *ia = aux; 74 75 if (strcmp(ia->ia_name, "opm") != 0) 76 return 0; 77 78 if (ia->ia_addr == INTIOCF_ADDR_DEFAULT) 79 ia->ia_addr = 0xe90000; 80 ia->ia_size = 0x2000; 81 if (intio_map_allocate_region (parent, ia, INTIO_MAP_TESTONLY)) 82 return 0; 83 84 return 1; 85 } 86 87 static void 88 opm_attach(parent, self, aux) 89 struct device *parent, *self; 90 void *aux; 91 { 92 struct opm_softc *sc = (struct opm_softc *)self; 93 struct intio_attach_args *ia = aux; 94 int r; 95 96 printf ("\n"); 97 ia->ia_size = 0x2000; 98 r = intio_map_allocate_region (parent, ia, INTIO_MAP_ALLOCATE); 99 #ifdef DIAGNOSTIC 100 if (r) 101 panic ("IO map for OPM corruption??"); 102 #endif 103 104 sc->sc_bst = ia->ia_bst; 105 r = bus_space_map (sc->sc_bst, 106 ia->ia_addr, ia->ia_size, 107 BUS_SPACE_MAP_SHIFTED, 108 &sc->sc_bht); 109 #ifdef DIAGNOSTIC 110 if (r) 111 panic ("Cannot map IO space for OPM."); 112 #endif 113 114 if (sc->sc_dev.dv_unit == 0) 115 opm0 = sc; /* XXX */ 116 117 return; 118 } 119 120 void opm_set_volume __P((int, int)); 121 void opm_set_key __P((int, int)); 122 void opm_set_voice __P((int, struct opm_voice *)); 123 void opm_set_voice_sub __P((int, struct opm_operator *)); 124 __inline static void writeopm __P((int, int)); 125 __inline static int readopm __P((int)); 126 void opm_key_on __P((u_char)); 127 void opm_key_off __P((u_char)); 128 int opmopen __P((dev_t, int, int)); 129 int opmclose __P((dev_t)); 130 131 __inline static void 132 writeopm(reg, dat) 133 int reg, dat; 134 { 135 while (bus_space_read_1 (opm0->sc_bst, opm0->sc_bht, OPM_DATA) & 0x80); 136 bus_space_write_1 (opm0->sc_bst, opm0->sc_bht, OPM_REG, reg); 137 while (bus_space_read_1 (opm0->sc_bst, opm0->sc_bht, OPM_DATA) & 0x80); 138 bus_space_write_1 (opm0->sc_bst, opm0->sc_bht, OPM_DATA, dat); 139 opm0->sc_regs[reg] = dat; 140 } 141 142 __inline static int 143 readopm(reg) 144 int reg; 145 { 146 return opm0->sc_regs[reg]; 147 } 148 149 #include "fd.h" 150 #include "vs.h" 151 #include "bell.h" 152 153 #if NVS > 0 154 void 155 adpcm_chgclk(clk) 156 u_char clk; 157 { 158 writeopm(0x1b, (readopm(0x1b) & ~OPM1B_CT1MSK) | clk); 159 } 160 #endif 161 162 #if NFD > 0 163 void 164 fdc_force_ready(rdy) 165 u_char rdy; 166 { 167 writeopm(0x1b, (readopm(0x1b) & ~OPM1B_CT2MSK) | rdy); 168 } 169 #endif 170 171 #if NBELL > 0 172 void 173 opm_key_on(channel) 174 u_char channel; 175 { 176 writeopm(0x08, opm0->sc_vdata[channel].sm << 3 | channel); 177 } 178 179 void 180 opm_key_off(channel) 181 u_char channel; 182 { 183 writeopm(0x08, channel); 184 } 185 186 void 187 opm_set_voice(channel, voice) 188 int channel; 189 struct opm_voice *voice; 190 { 191 bcopy(voice, &opm0->sc_vdata[channel], sizeof(struct opm_voice)); 192 193 opm_set_voice_sub(0x40 + channel, &voice->m1); 194 opm_set_voice_sub(0x48 + channel, &voice->m2); 195 opm_set_voice_sub(0x50 + channel, &voice->c1); 196 opm_set_voice_sub(0x58 + channel, &voice->c2); 197 writeopm(0x20 + channel, 0xc0 | (voice->fb & 0x7) << 3 | (voice->con & 0x7)); 198 } 199 200 void 201 opm_set_voice_sub(reg, op) 202 register int reg; 203 struct opm_operator *op; 204 { 205 /* DT1/MUL */ 206 writeopm(reg, (op->dt1 & 0x7) << 3 | (op->mul & 0x7)); 207 208 /* TL */ 209 writeopm(reg + 0x20, op->tl & 0x7f); 210 211 /* KS/AR */ 212 writeopm(reg + 0x40, (op->ks & 0x3) << 6 | (op->ar & 0x1f)); 213 214 /* AMS/D1R */ 215 writeopm(reg + 0x60, (op->ame & 0x1) << 7 | (op->d1r & 0x1f)); 216 217 /* DT2/D2R */ 218 writeopm(reg + 0x80, (op->dt2 & 0x3) << 6 | (op->d2r & 0x1f)); 219 220 /* D1L/RR */ 221 writeopm(reg + 0xa0, (op->d1l & 0xf) << 4 | (op->rr & 0xf)); 222 } 223 224 void 225 opm_set_volume(channel, volume) 226 int channel; 227 int volume; 228 { 229 int value; 230 231 switch (opm0->sc_vdata[channel].con) { 232 case 7: 233 value = opm0->sc_vdata[channel].m1.tl + volume; 234 writeopm(0x60 + channel, ((value > 0x7f) ? 0x7f : value)); 235 case 6: 236 case 5: 237 value = opm0->sc_vdata[channel].m2.tl + volume; 238 writeopm(0x68 + channel, ((value > 0x7f) ? 0x7f : value)); 239 case 4: 240 value = opm0->sc_vdata[channel].c1.tl + volume; 241 writeopm(0x70 + channel, ((value > 0x7f) ? 0x7f : value)); 242 case 3: 243 case 2: 244 case 1: 245 case 0: 246 value = opm0->sc_vdata[channel].c2.tl + volume; 247 writeopm(0x78 + channel, ((value > 0x7f) ? 0x7f : value)); 248 } 249 } 250 251 void 252 opm_set_key(channel, tone) 253 int channel; 254 int tone; 255 { 256 writeopm(0x28 + channel, tone >> 8); 257 writeopm(0x30 + channel, tone & 0xff); 258 } 259 260 /*ARGSUSED*/ 261 int 262 opmopen(dev, flag, mode) 263 dev_t dev; 264 int flag, mode; 265 { 266 return 0; 267 } 268 269 /*ARGSUSED*/ 270 int 271 opmclose(dev) 272 dev_t dev; 273 { 274 return 0; 275 } 276 277 #endif 278
Indexes created Wed Oct 15 16:09:53 GMT 2025