opm.c revision 1.16
1 /* $NetBSD: opm.c,v 1.16 2006/03/28 17:38:28 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/cdefs.h> 40 __KERNEL_RCSID(0, "$NetBSD: opm.c,v 1.16 2006/03/28 17:38:28 thorpej 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(struct device *, struct cfdata *, void *); 65 static void opm_attach(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(struct device *parent, struct cfdata *cf, 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(struct device *parent, struct device *self, void *aux) 89 { 90 struct opm_softc *sc = (struct opm_softc *)self; 91 struct intio_attach_args *ia = aux; 92 int r; 93 94 printf ("\n"); 95 ia->ia_size = 0x2000; 96 r = intio_map_allocate_region (parent, ia, INTIO_MAP_ALLOCATE); 97 #ifdef DIAGNOSTIC 98 if (r) 99 panic ("IO map for OPM corruption??"); 100 #endif 101 102 sc->sc_bst = ia->ia_bst; 103 r = bus_space_map (sc->sc_bst, 104 ia->ia_addr, ia->ia_size, 105 BUS_SPACE_MAP_SHIFTED, 106 &sc->sc_bht); 107 #ifdef DIAGNOSTIC 108 if (r) 109 panic ("Cannot map IO space for OPM."); 110 #endif 111 112 /* XXX device_unit() abuse */ 113 if (device_unit(&sc->sc_dev) == 0) 114 opm0 = sc; /* XXX */ 115 116 return; 117 } 118 119 void opm_set_volume(int, int); 120 void opm_set_key(int, int); 121 void opm_set_voice(int, struct opm_voice *); 122 void opm_set_voice_sub(int, struct opm_operator *); 123 inline static void writeopm(int, int); 124 inline static int readopm(int); 125 void opm_key_on(u_char); 126 void opm_key_off(u_char); 127 int opmopen(dev_t, int, int); 128 int opmclose(dev_t); 129 130 inline static void 131 writeopm(int reg, int dat) 132 { 133 while (bus_space_read_1 (opm0->sc_bst, opm0->sc_bht, OPM_DATA) & 0x80); 134 bus_space_write_1 (opm0->sc_bst, opm0->sc_bht, OPM_REG, reg); 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_DATA, dat); 137 opm0->sc_regs[reg] = dat; 138 } 139 140 inline static int 141 readopm(int reg) 142 { 143 return opm0->sc_regs[reg]; 144 } 145 146 #include "fd.h" 147 #include "vs.h" 148 #include "bell.h" 149 150 #if NVS > 0 151 void 152 adpcm_chgclk(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(u_char rdy) 161 { 162 writeopm(0x1b, (readopm(0x1b) & ~OPM1B_CT2MSK) | rdy); 163 } 164 #endif 165 166 #if NBELL > 0 167 void 168 opm_key_on(u_char channel) 169 { 170 writeopm(0x08, opm0->sc_vdata[channel].sm << 3 | channel); 171 } 172 173 void 174 opm_key_off(u_char channel) 175 { 176 writeopm(0x08, channel); 177 } 178 179 void 180 opm_set_voice(int channel, struct opm_voice *voice) 181 { 182 memcpy(&opm0->sc_vdata[channel], voice, sizeof(struct opm_voice)); 183 184 opm_set_voice_sub(0x40 + channel, &voice->m1); 185 opm_set_voice_sub(0x48 + channel, &voice->m2); 186 opm_set_voice_sub(0x50 + channel, &voice->c1); 187 opm_set_voice_sub(0x58 + channel, &voice->c2); 188 writeopm(0x20 + channel, 0xc0 | (voice->fb & 0x7) << 3 | 189 (voice->con & 0x7)); 190 } 191 192 void 193 opm_set_voice_sub(int reg, struct opm_operator *op) 194 { 195 /* DT1/MUL */ 196 writeopm(reg, (op->dt1 & 0x7) << 3 | (op->mul & 0x7)); 197 198 /* TL */ 199 writeopm(reg + 0x20, op->tl & 0x7f); 200 201 /* KS/AR */ 202 writeopm(reg + 0x40, (op->ks & 0x3) << 6 | (op->ar & 0x1f)); 203 204 /* AMS/D1R */ 205 writeopm(reg + 0x60, (op->ame & 0x1) << 7 | (op->d1r & 0x1f)); 206 207 /* DT2/D2R */ 208 writeopm(reg + 0x80, (op->dt2 & 0x3) << 6 | (op->d2r & 0x1f)); 209 210 /* D1L/RR */ 211 writeopm(reg + 0xa0, (op->d1l & 0xf) << 4 | (op->rr & 0xf)); 212 } 213 214 void 215 opm_set_volume(int channel, int volume) 216 { 217 int value; 218 219 switch (opm0->sc_vdata[channel].con) { 220 case 7: 221 value = opm0->sc_vdata[channel].m1.tl + volume; 222 writeopm(0x60 + channel, ((value > 0x7f) ? 0x7f : value)); 223 case 6: 224 case 5: 225 value = opm0->sc_vdata[channel].m2.tl + volume; 226 writeopm(0x68 + channel, ((value > 0x7f) ? 0x7f : value)); 227 case 4: 228 value = opm0->sc_vdata[channel].c1.tl + volume; 229 writeopm(0x70 + channel, ((value > 0x7f) ? 0x7f : value)); 230 case 3: 231 case 2: 232 case 1: 233 case 0: 234 value = opm0->sc_vdata[channel].c2.tl + volume; 235 writeopm(0x78 + channel, ((value > 0x7f) ? 0x7f : value)); 236 } 237 } 238 239 void 240 opm_set_key(int channel, int tone) 241 { 242 writeopm(0x28 + channel, tone >> 8); 243 writeopm(0x30 + channel, tone & 0xff); 244 } 245 246 /*ARGSUSED*/ 247 int 248 opmopen(dev_t dev, int flag, int mode) 249 { 250 return 0; 251 } 252 253 /*ARGSUSED*/ 254 int 255 opmclose(dev_t dev) 256 { 257 return 0; 258 } 259 260 #endif 261
Indexes created Thu Oct 16 14:10:15 GMT 2025