opm.c revision 1.10
1 /* $NetBSD: opm.c,v 1.10 2002/10/02 16:02:42 thorpej 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 CFATTACH_DECL(opm, sizeof (struct opm_softc), 64 opm_match, opm_attach, NULL, NULL); 65 66 static int 67 opm_match(parent, cf, aux) 68 struct device *parent; 69 struct cfdata *cf; 70 void *aux; 71 { 72 struct intio_attach_args *ia = aux; 73 74 if (strcmp(ia->ia_name, "opm") != 0) 75 return 0; 76 77 if (ia->ia_addr == INTIOCF_ADDR_DEFAULT) 78 ia->ia_addr = 0xe90000; 79 ia->ia_size = 0x2000; 80 if (intio_map_allocate_region (parent, ia, INTIO_MAP_TESTONLY)) 81 return 0; 82 83 return 1; 84 } 85 86 static void 87 opm_attach(parent, self, aux) 88 struct device *parent, *self; 89 void *aux; 90 { 91 struct opm_softc *sc = (struct opm_softc *)self; 92 struct intio_attach_args *ia = aux; 93 int r; 94 95 printf ("\n"); 96 ia->ia_size = 0x2000; 97 r = intio_map_allocate_region (parent, ia, INTIO_MAP_ALLOCATE); 98 #ifdef DIAGNOSTIC 99 if (r) 100 panic ("IO map for OPM corruption??"); 101 #endif 102 103 sc->sc_bst = ia->ia_bst; 104 r = bus_space_map (sc->sc_bst, 105 ia->ia_addr, ia->ia_size, 106 BUS_SPACE_MAP_SHIFTED, 107 &sc->sc_bht); 108 #ifdef DIAGNOSTIC 109 if (r) 110 panic ("Cannot map IO space for OPM."); 111 #endif 112 113 if (sc->sc_dev.dv_unit == 0) 114 opm0 = sc; /* XXX */ 115 116 return; 117 } 118 119 void opm_set_volume __P((int, int)); 120 void opm_set_key __P((int, int)); 121 void opm_set_voice __P((int, struct opm_voice *)); 122 void opm_set_voice_sub __P((int, struct opm_operator *)); 123 __inline static void writeopm __P((int, int)); 124 __inline static int readopm __P((int)); 125 void opm_key_on __P((u_char)); 126 void opm_key_off __P((u_char)); 127 int opmopen __P((dev_t, int, int)); 128 int opmclose __P((dev_t)); 129 130 __inline static void 131 writeopm(reg, dat) 132 int reg, dat; 133 { 134 while (bus_space_read_1 (opm0->sc_bst, opm0->sc_bht, OPM_DATA) & 0x80); 135 bus_space_write_1 (opm0->sc_bst, opm0->sc_bht, OPM_REG, reg); 136 while (bus_space_read_1 (opm0->sc_bst, opm0->sc_bht, OPM_DATA) & 0x80); 137 bus_space_write_1 (opm0->sc_bst, opm0->sc_bht, OPM_DATA, dat); 138 opm0->sc_regs[reg] = dat; 139 } 140 141 __inline static int 142 readopm(reg) 143 int reg; 144 { 145 return opm0->sc_regs[reg]; 146 } 147 148 #include "fd.h" 149 #include "vs.h" 150 #include "bell.h" 151 152 #if NVS > 0 153 void 154 adpcm_chgclk(clk) 155 u_char clk; 156 { 157 writeopm(0x1b, (readopm(0x1b) & ~OPM1B_CT1MSK) | clk); 158 } 159 #endif 160 161 #if NFD > 0 162 void 163 fdc_force_ready(rdy) 164 u_char rdy; 165 { 166 writeopm(0x1b, (readopm(0x1b) & ~OPM1B_CT2MSK) | rdy); 167 } 168 #endif 169 170 #if NBELL > 0 171 void 172 opm_key_on(channel) 173 u_char channel; 174 { 175 writeopm(0x08, opm0->sc_vdata[channel].sm << 3 | channel); 176 } 177 178 void 179 opm_key_off(channel) 180 u_char channel; 181 { 182 writeopm(0x08, channel); 183 } 184 185 void 186 opm_set_voice(channel, voice) 187 int channel; 188 struct opm_voice *voice; 189 { 190 memcpy(&opm0->sc_vdata[channel], voice, sizeof(struct opm_voice)); 191 192 opm_set_voice_sub(0x40 + channel, &voice->m1); 193 opm_set_voice_sub(0x48 + channel, &voice->m2); 194 opm_set_voice_sub(0x50 + channel, &voice->c1); 195 opm_set_voice_sub(0x58 + channel, &voice->c2); 196 writeopm(0x20 + channel, 0xc0 | (voice->fb & 0x7) << 3 | (voice->con & 0x7)); 197 } 198 199 void 200 opm_set_voice_sub(reg, op) 201 register int reg; 202 struct opm_operator *op; 203 { 204 /* DT1/MUL */ 205 writeopm(reg, (op->dt1 & 0x7) << 3 | (op->mul & 0x7)); 206 207 /* TL */ 208 writeopm(reg + 0x20, op->tl & 0x7f); 209 210 /* KS/AR */ 211 writeopm(reg + 0x40, (op->ks & 0x3) << 6 | (op->ar & 0x1f)); 212 213 /* AMS/D1R */ 214 writeopm(reg + 0x60, (op->ame & 0x1) << 7 | (op->d1r & 0x1f)); 215 216 /* DT2/D2R */ 217 writeopm(reg + 0x80, (op->dt2 & 0x3) << 6 | (op->d2r & 0x1f)); 218 219 /* D1L/RR */ 220 writeopm(reg + 0xa0, (op->d1l & 0xf) << 4 | (op->rr & 0xf)); 221 } 222 223 void 224 opm_set_volume(channel, volume) 225 int channel; 226 int volume; 227 { 228 int value; 229 230 switch (opm0->sc_vdata[channel].con) { 231 case 7: 232 value = opm0->sc_vdata[channel].m1.tl + volume; 233 writeopm(0x60 + channel, ((value > 0x7f) ? 0x7f : value)); 234 case 6: 235 case 5: 236 value = opm0->sc_vdata[channel].m2.tl + volume; 237 writeopm(0x68 + channel, ((value > 0x7f) ? 0x7f : value)); 238 case 4: 239 value = opm0->sc_vdata[channel].c1.tl + volume; 240 writeopm(0x70 + channel, ((value > 0x7f) ? 0x7f : value)); 241 case 3: 242 case 2: 243 case 1: 244 case 0: 245 value = opm0->sc_vdata[channel].c2.tl + volume; 246 writeopm(0x78 + channel, ((value > 0x7f) ? 0x7f : value)); 247 } 248 } 249 250 void 251 opm_set_key(channel, tone) 252 int channel; 253 int tone; 254 { 255 writeopm(0x28 + channel, tone >> 8); 256 writeopm(0x30 + channel, tone & 0xff); 257 } 258 259 /*ARGSUSED*/ 260 int 261 opmopen(dev, flag, mode) 262 dev_t dev; 263 int flag, mode; 264 { 265 return 0; 266 } 267 268 /*ARGSUSED*/ 269 int 270 opmclose(dev) 271 dev_t dev; 272 { 273 return 0; 274 } 275 276 #endif 277
Indexes created Wed Oct 15 16:09:53 GMT 2025