opm.c revision 1.3.10.1
1 /* $NetBSD: opm.c,v 1.3.10.1 1999/01/31 10:34:25 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 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, ia->ia_addr, ia->ia_size, 0, 105 &sc->sc_bht); 106 #ifdef DIAGNOSTIC 107 if (r) 108 panic ("Cannot map IO space for OPM."); 109 #endif 110 111 if (sc->sc_dev.dv_unit == 0) 112 opm0 = sc; /* XXX */ 113 114 return; 115 } 116 117 void opm_set_volume __P((int, int)); 118 void opm_set_key __P((int, int)); 119 void opm_set_voice __P((int, struct opm_voice *)); 120 void opm_set_voice_sub __P((int, struct opm_operator *)); 121 __inline static void writeopm __P((int, int)); 122 __inline static int readopm __P((int)); 123 void opm_key_on __P((u_char)); 124 void opm_key_off __P((u_char)); 125 int opmopen __P((dev_t, int, int)); 126 int opmclose __P((dev_t)); 127 128 __inline static void 129 writeopm(reg, dat) 130 int reg, dat; 131 { 132 while (bus_space_read_1 (opm0->sc_bst, opm0->sc_bht, OPM_DATA) & 0x80); 133 bus_space_write_1 (opm0->sc_bst, opm0->sc_bht, OPM_REG, reg); 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_DATA, dat); 136 opm0->sc_regs[reg] = dat; 137 } 138 139 __inline static int 140 readopm(reg) 141 int reg; 142 { 143 return opm0->sc_regs[reg]; 144 } 145 146 #include "fd.h" 147 #include "bell.h" 148 149 #if 0 150 void 151 adpcm_chgclk(clk) 152 u_char clk; 153 { 154 writeopm(0x1b, readopm(0x1b) & ~OPM1B_CT1MSK | clk); 155 } 156 #endif 157 158 #if NFD > 0 159 void 160 fdc_force_ready(rdy) 161 u_char rdy; 162 { 163 writeopm(0x1b, readopm(0x1b) & ~OPM1B_CT2MSK | rdy); 164 } 165 #endif 166 167 #if NBELL > 0 168 void 169 opm_key_on(channel) 170 u_char channel; 171 { 172 writeopm(0x08, opm0->sc_vdata[channel].sm << 3 | channel); 173 } 174 175 void 176 opm_key_off(channel) 177 u_char channel; 178 { 179 writeopm(0x08, channel); 180 } 181 182 void 183 opm_set_voice(channel, voice) 184 int channel; 185 struct opm_voice *voice; 186 { 187 bcopy(voice, &opm0->sc_vdata[channel], sizeof(struct opm_voice)); 188 189 opm_set_voice_sub(0x40 + channel, &voice->m1); 190 opm_set_voice_sub(0x48 + channel, &voice->m2); 191 opm_set_voice_sub(0x50 + channel, &voice->c1); 192 opm_set_voice_sub(0x58 + channel, &voice->c2); 193 writeopm(0x20 + channel, 0xc0 | (voice->fb & 0x7) << 3 | (voice->con & 0x7)); 194 } 195 196 void 197 opm_set_voice_sub(reg, op) 198 register int reg; 199 struct opm_operator *op; 200 { 201 /* DT1/MUL */ 202 writeopm(reg, (op->dt1 & 0x7) << 3 | (op->mul & 0x7)); 203 204 /* TL */ 205 writeopm(reg + 0x20, op->tl & 0x7f); 206 207 /* KS/AR */ 208 writeopm(reg + 0x40, (op->ks & 0x3) << 6 | (op->ar & 0x1f)); 209 210 /* AMS/D1R */ 211 writeopm(reg + 0x60, (op->ame & 0x1) << 7 | (op->d1r & 0x1f)); 212 213 /* DT2/D2R */ 214 writeopm(reg + 0x80, (op->dt2 & 0x3) << 6 | (op->d2r & 0x1f)); 215 216 /* D1L/RR */ 217 writeopm(reg + 0xa0, (op->d1l & 0xf) << 4 | (op->rr & 0xf)); 218 } 219 220 void 221 opm_set_volume(channel, volume) 222 int channel; 223 int volume; 224 { 225 int value; 226 227 switch (opm0->sc_vdata[channel].con) { 228 case 7: 229 value = opm0->sc_vdata[channel].m1.tl + volume; 230 writeopm(0x60 + channel, ((value > 0x7f) ? 0x7f : value)); 231 case 6: 232 case 5: 233 value = opm0->sc_vdata[channel].m2.tl + volume; 234 writeopm(0x68 + channel, ((value > 0x7f) ? 0x7f : value)); 235 case 4: 236 value = opm0->sc_vdata[channel].c1.tl + volume; 237 writeopm(0x70 + channel, ((value > 0x7f) ? 0x7f : value)); 238 case 3: 239 case 2: 240 case 1: 241 case 0: 242 value = opm0->sc_vdata[channel].c2.tl + volume; 243 writeopm(0x78 + channel, ((value > 0x7f) ? 0x7f : value)); 244 } 245 } 246 247 void 248 opm_set_key(channel, tone) 249 int channel; 250 int tone; 251 { 252 writeopm(0x28 + channel, tone >> 8); 253 writeopm(0x30 + channel, tone & 0xff); 254 } 255 256 /*ARGSUSED*/ 257 int 258 opmopen(dev, flag, mode) 259 dev_t dev; 260 int flag, mode; 261 { 262 return 0; 263 } 264 265 /*ARGSUSED*/ 266 int 267 opmclose(dev) 268 dev_t dev; 269 { 270 return 0; 271 } 272 273 #endif 274
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