opm.c revision 1.10.6.2
1 /* $NetBSD: opm.c,v 1.10.6.2 2004/09/18 14:42:26 skrll 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/cdefs.h> 40 __KERNEL_RCSID(0, "$NetBSD: opm.c,v 1.10.6.2 2004/09/18 14:42:26 skrll Exp $"); 41 42 #include <sys/param.h> 43 #include <sys/systm.h> 44 #include <sys/device.h> 45 46 #include <machine/bus.h> 47 #include <machine/cpu.h> 48 49 #include <machine/opmreg.h> 50 #include <arch/x68k/dev/opmvar.h> 51 #include <arch/x68k/dev/intiovar.h> 52 53 struct opm_softc { 54 struct device sc_dev; 55 56 bus_space_tag_t sc_bst; 57 bus_space_handle_t sc_bht; 58 u_int8_t sc_regs[0x100]; 59 struct opm_voice sc_vdata[8]; 60 }; 61 62 struct opm_softc *opm0; /* XXX */ 63 64 static int opm_match __P((struct device *, struct cfdata *, void *)); 65 static void opm_attach __P((struct device *, struct device *, void *)); 66 67 CFATTACH_DECL(opm, sizeof (struct opm_softc), 68 opm_match, opm_attach, NULL, NULL); 69 70 static int 71 opm_match(parent, cf, aux) 72 struct device *parent; 73 struct cfdata *cf; 74 void *aux; 75 { 76 struct intio_attach_args *ia = aux; 77 78 if (strcmp(ia->ia_name, "opm") != 0) 79 return 0; 80 81 if (ia->ia_addr == INTIOCF_ADDR_DEFAULT) 82 ia->ia_addr = 0xe90000; 83 ia->ia_size = 0x2000; 84 if (intio_map_allocate_region (parent, ia, INTIO_MAP_TESTONLY)) 85 return 0; 86 87 return 1; 88 } 89 90 static void 91 opm_attach(parent, self, aux) 92 struct device *parent, *self; 93 void *aux; 94 { 95 struct opm_softc *sc = (struct opm_softc *)self; 96 struct intio_attach_args *ia = aux; 97 int r; 98 99 printf ("\n"); 100 ia->ia_size = 0x2000; 101 r = intio_map_allocate_region (parent, ia, INTIO_MAP_ALLOCATE); 102 #ifdef DIAGNOSTIC 103 if (r) 104 panic ("IO map for OPM corruption??"); 105 #endif 106 107 sc->sc_bst = ia->ia_bst; 108 r = bus_space_map (sc->sc_bst, 109 ia->ia_addr, ia->ia_size, 110 BUS_SPACE_MAP_SHIFTED, 111 &sc->sc_bht); 112 #ifdef DIAGNOSTIC 113 if (r) 114 panic ("Cannot map IO space for OPM."); 115 #endif 116 117 if (sc->sc_dev.dv_unit == 0) 118 opm0 = sc; /* XXX */ 119 120 return; 121 } 122 123 void opm_set_volume __P((int, int)); 124 void opm_set_key __P((int, int)); 125 void opm_set_voice __P((int, struct opm_voice *)); 126 void opm_set_voice_sub __P((int, struct opm_operator *)); 127 __inline static void writeopm __P((int, int)); 128 __inline static int readopm __P((int)); 129 void opm_key_on __P((u_char)); 130 void opm_key_off __P((u_char)); 131 int opmopen __P((dev_t, int, int)); 132 int opmclose __P((dev_t)); 133 134 __inline static void 135 writeopm(reg, dat) 136 int reg, dat; 137 { 138 while (bus_space_read_1 (opm0->sc_bst, opm0->sc_bht, OPM_DATA) & 0x80); 139 bus_space_write_1 (opm0->sc_bst, opm0->sc_bht, OPM_REG, reg); 140 while (bus_space_read_1 (opm0->sc_bst, opm0->sc_bht, OPM_DATA) & 0x80); 141 bus_space_write_1 (opm0->sc_bst, opm0->sc_bht, OPM_DATA, dat); 142 opm0->sc_regs[reg] = dat; 143 } 144 145 __inline static int 146 readopm(reg) 147 int reg; 148 { 149 return opm0->sc_regs[reg]; 150 } 151 152 #include "fd.h" 153 #include "vs.h" 154 #include "bell.h" 155 156 #if NVS > 0 157 void 158 adpcm_chgclk(clk) 159 u_char clk; 160 { 161 writeopm(0x1b, (readopm(0x1b) & ~OPM1B_CT1MSK) | clk); 162 } 163 #endif 164 165 #if NFD > 0 166 void 167 fdc_force_ready(rdy) 168 u_char rdy; 169 { 170 writeopm(0x1b, (readopm(0x1b) & ~OPM1B_CT2MSK) | rdy); 171 } 172 #endif 173 174 #if NBELL > 0 175 void 176 opm_key_on(channel) 177 u_char channel; 178 { 179 writeopm(0x08, opm0->sc_vdata[channel].sm << 3 | channel); 180 } 181 182 void 183 opm_key_off(channel) 184 u_char channel; 185 { 186 writeopm(0x08, channel); 187 } 188 189 void 190 opm_set_voice(channel, voice) 191 int channel; 192 struct opm_voice *voice; 193 { 194 memcpy(&opm0->sc_vdata[channel], voice, sizeof(struct opm_voice)); 195 196 opm_set_voice_sub(0x40 + channel, &voice->m1); 197 opm_set_voice_sub(0x48 + channel, &voice->m2); 198 opm_set_voice_sub(0x50 + channel, &voice->c1); 199 opm_set_voice_sub(0x58 + channel, &voice->c2); 200 writeopm(0x20 + channel, 0xc0 | (voice->fb & 0x7) << 3 | (voice->con & 0x7)); 201 } 202 203 void 204 opm_set_voice_sub(reg, op) 205 register int reg; 206 struct opm_operator *op; 207 { 208 /* DT1/MUL */ 209 writeopm(reg, (op->dt1 & 0x7) << 3 | (op->mul & 0x7)); 210 211 /* TL */ 212 writeopm(reg + 0x20, op->tl & 0x7f); 213 214 /* KS/AR */ 215 writeopm(reg + 0x40, (op->ks & 0x3) << 6 | (op->ar & 0x1f)); 216 217 /* AMS/D1R */ 218 writeopm(reg + 0x60, (op->ame & 0x1) << 7 | (op->d1r & 0x1f)); 219 220 /* DT2/D2R */ 221 writeopm(reg + 0x80, (op->dt2 & 0x3) << 6 | (op->d2r & 0x1f)); 222 223 /* D1L/RR */ 224 writeopm(reg + 0xa0, (op->d1l & 0xf) << 4 | (op->rr & 0xf)); 225 } 226 227 void 228 opm_set_volume(channel, volume) 229 int channel; 230 int volume; 231 { 232 int value; 233 234 switch (opm0->sc_vdata[channel].con) { 235 case 7: 236 value = opm0->sc_vdata[channel].m1.tl + volume; 237 writeopm(0x60 + channel, ((value > 0x7f) ? 0x7f : value)); 238 case 6: 239 case 5: 240 value = opm0->sc_vdata[channel].m2.tl + volume; 241 writeopm(0x68 + channel, ((value > 0x7f) ? 0x7f : value)); 242 case 4: 243 value = opm0->sc_vdata[channel].c1.tl + volume; 244 writeopm(0x70 + channel, ((value > 0x7f) ? 0x7f : value)); 245 case 3: 246 case 2: 247 case 1: 248 case 0: 249 value = opm0->sc_vdata[channel].c2.tl + volume; 250 writeopm(0x78 + channel, ((value > 0x7f) ? 0x7f : value)); 251 } 252 } 253 254 void 255 opm_set_key(channel, tone) 256 int channel; 257 int tone; 258 { 259 writeopm(0x28 + channel, tone >> 8); 260 writeopm(0x30 + channel, tone & 0xff); 261 } 262 263 /*ARGSUSED*/ 264 int 265 opmopen(dev, flag, mode) 266 dev_t dev; 267 int flag, mode; 268 { 269 return 0; 270 } 271 272 /*ARGSUSED*/ 273 int 274 opmclose(dev) 275 dev_t dev; 276 { 277 return 0; 278 } 279 280 #endif 281
Indexes created Thu Oct 16 14:10:15 GMT 2025