asc.c revision 1.31
1 /* $NetBSD: asc.c,v 1.31 1999/04/22 18:00:34 ender Exp $ */ 2 3 /* 4 * Copyright (C) 1997 Scott Reynolds 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. The name of the author may not be used to endorse or promote products 16 * derived from this software without specific prior written permission. 17 * 18 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 19 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 20 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 21 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 22 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 23 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 24 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 25 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 26 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 27 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 28 */ 29 /*- 30 * Copyright (C) 1993 Allen K. Briggs, Chris P. Caputo, 31 * Michael L. Finch, Bradley A. Grantham, and 32 * Lawrence A. Kesteloot 33 * All rights reserved. 34 * 35 * Redistribution and use in source and binary forms, with or without 36 * modification, are permitted provided that the following conditions 37 * are met: 38 * 1. Redistributions of source code must retain the above copyright 39 * notice, this list of conditions and the following disclaimer. 40 * 2. Redistributions in binary form must reproduce the above copyright 41 * notice, this list of conditions and the following disclaimer in the 42 * documentation and/or other materials provided with the distribution. 43 * 3. All advertising materials mentioning features or use of this software 44 * must display the following acknowledgement: 45 * This product includes software developed by the Alice Group. 46 * 4. The names of the Alice Group or any of its members may not be used 47 * to endorse or promote products derived from this software without 48 * specific prior written permission. 49 * 50 * THIS SOFTWARE IS PROVIDED BY THE ALICE GROUP ``AS IS'' AND ANY EXPRESS OR 51 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 52 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 53 * IN NO EVENT SHALL THE ALICE GROUP BE LIABLE FOR ANY DIRECT, INDIRECT, 54 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 55 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 56 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 57 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 58 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 59 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 60 */ 61 62 /* 63 * ASC driver code and console bell support 64 */ 65 66 #include <sys/types.h> 67 #include <sys/cdefs.h> 68 #include <sys/errno.h> 69 #include <sys/time.h> 70 #include <sys/systm.h> 71 #include <sys/param.h> 72 #include <sys/device.h> 73 #include <sys/poll.h> 74 75 #include <vm/vm.h> 76 #include <vm/pmap.h> 77 78 #include <machine/autoconf.h> 79 #include <machine/cpu.h> 80 #include <machine/bus.h> 81 #include <machine/viareg.h> 82 83 #include <mac68k/obio/ascvar.h> 84 #include <mac68k/obio/obiovar.h> 85 86 #define MAC68K_ASC_BASE 0x50f14000 87 #define MAC68K_IIFX_ASC_BASE 0x50f10000 88 #define MAC68K_ASC_LEN 0x01000 89 90 #ifdef DEBUG 91 #define ASC_DEBUG 92 #endif 93 94 #ifdef ASC_DEBUG 95 int asc_debug = 0; /* non-zero enables debugging output */ 96 #endif 97 98 static u_int8_t asc_wave_tab[0x800]; 99 100 static int asc_ring_bell __P((void *, int, int, int)); 101 static void asc_stop_bell __P((void *)); 102 #if __notyet__ 103 static void asc_intr_enable __P((void)); 104 static void asc_intr __P((void *)); 105 #endif 106 107 static int ascmatch __P((struct device *, struct cfdata *, void *)); 108 static void ascattach __P((struct device *, struct device *, void *)); 109 110 struct cfattach asc_ca = { 111 sizeof(struct asc_softc), ascmatch, ascattach 112 }; 113 114 extern struct cfdriver asc_cd; 115 116 static int 117 ascmatch(parent, cf, aux) 118 struct device *parent; 119 struct cfdata *cf; 120 void *aux; 121 { 122 struct obio_attach_args *oa = (struct obio_attach_args *)aux; 123 bus_addr_t addr; 124 bus_space_handle_t bsh; 125 int rval = 0; 126 127 if (oa->oa_addr != (-1)) 128 addr = (bus_addr_t)oa->oa_addr; 129 else if (current_mac_model->machineid == MACH_MACIIFX) 130 addr = (bus_addr_t)MAC68K_IIFX_ASC_BASE; 131 else 132 addr = (bus_addr_t)MAC68K_ASC_BASE; 133 134 if (bus_space_map(oa->oa_tag, addr, MAC68K_ASC_LEN, 0, &bsh)) 135 return (0); 136 137 if (mac68k_bus_space_probe(oa->oa_tag, bsh, 0, 1)) 138 rval = 1; 139 else 140 rval = 0; 141 142 bus_space_unmap(oa->oa_tag, bsh, MAC68K_ASC_LEN); 143 144 return rval; 145 } 146 147 static void 148 ascattach(parent, self, aux) 149 struct device *parent, *self; 150 void *aux; 151 { 152 struct asc_softc *sc = (struct asc_softc *)self; 153 struct obio_attach_args *oa = (struct obio_attach_args *)aux; 154 bus_addr_t addr; 155 int i; 156 157 sc->sc_tag = oa->oa_tag; 158 if (oa->oa_addr != (-1)) 159 addr = (bus_addr_t)oa->oa_addr; 160 else if (current_mac_model->machineid == MACH_MACIIFX) 161 addr = (bus_addr_t)MAC68K_IIFX_ASC_BASE; 162 else 163 addr = (bus_addr_t)MAC68K_ASC_BASE; 164 if (bus_space_map(sc->sc_tag, addr, MAC68K_ASC_LEN, 0, 165 &sc->sc_handle)) { 166 printf(": can't map memory space\n"); 167 return; 168 } 169 sc->sc_open = 0; 170 sc->sc_ringing = 0; 171 172 for (i = 0; i < 256; i++) { /* up part of wave, four voices? */ 173 asc_wave_tab[i] = i / 4; 174 asc_wave_tab[i + 512] = i / 4; 175 asc_wave_tab[i + 1024] = i / 4; 176 asc_wave_tab[i + 1536] = i / 4; 177 } 178 for (i = 0; i < 256; i++) { /* down part of wave, four voices? */ 179 asc_wave_tab[i + 256] = 0x3f - (i / 4); 180 asc_wave_tab[i + 768] = 0x3f - (i / 4); 181 asc_wave_tab[i + 1280] = 0x3f - (i / 4); 182 asc_wave_tab[i + 1792] = 0x3f - (i / 4); 183 } 184 185 printf(": Apple Sound Chip"); 186 if (oa->oa_addr != (-1)) 187 printf(" at %x", oa->oa_addr); 188 printf("\n"); 189 190 mac68k_set_bell_callback(asc_ring_bell, sc); 191 #if __notyet__ 192 via2_register_irq(VIA2_ASC, asc_intr, sc); 193 asc_intr_enable(); 194 #endif 195 } 196 197 int 198 ascopen(dev, flag, mode, p) 199 dev_t dev; 200 int flag; 201 int mode; 202 struct proc *p; 203 { 204 struct asc_softc *sc; 205 int unit; 206 207 unit = ASCUNIT(dev); 208 sc = asc_cd.cd_devs[unit]; 209 if (unit >= asc_cd.cd_ndevs) 210 return (ENXIO); 211 if (sc->sc_open) 212 return (EBUSY); 213 sc->sc_open = 1; 214 215 return (0); 216 } 217 218 int 219 ascclose(dev, flag, mode, p) 220 dev_t dev; 221 int flag; 222 int mode; 223 struct proc *p; 224 { 225 struct asc_softc *sc; 226 227 sc = asc_cd.cd_devs[ASCUNIT(dev)]; 228 sc->sc_open = 0; 229 230 return (0); 231 } 232 233 int 234 ascread(dev, uio, ioflag) 235 dev_t dev; 236 struct uio *uio; 237 int ioflag; 238 { 239 return (ENXIO); 240 } 241 242 int 243 ascwrite(dev, uio, ioflag) 244 dev_t dev; 245 struct uio *uio; 246 int ioflag; 247 { 248 return (ENXIO); 249 } 250 251 int 252 ascioctl(dev, cmd, data, flag, p) 253 dev_t dev; 254 int cmd; 255 caddr_t data; 256 int flag; 257 struct proc *p; 258 { 259 struct asc_softc *sc; 260 int error; 261 int unit = ASCUNIT(dev); 262 263 sc = asc_cd.cd_devs[unit]; 264 error = 0; 265 266 switch (cmd) { 267 default: 268 error = EINVAL; 269 break; 270 } 271 return (error); 272 } 273 274 int 275 ascpoll(dev, events, p) 276 dev_t dev; 277 int events; 278 struct proc *p; 279 { 280 return (events & (POLLOUT | POLLWRNORM)); 281 } 282 283 int 284 ascmmap(dev, off, prot) 285 dev_t dev; 286 int off; 287 int prot; 288 { 289 int unit = ASCUNIT(dev); 290 struct asc_softc *sc; 291 paddr_t pa; 292 293 sc = asc_cd.cd_devs[unit]; 294 if ((u_int)off < MAC68K_ASC_LEN) { 295 pa = pmap_extract(pmap_kernel(), (vaddr_t)sc->sc_handle); 296 return m68k_btop(pa + off); 297 } 298 299 return (-1); 300 } 301 302 static int 303 asc_ring_bell(arg, freq, length, volume) 304 void *arg; 305 int freq, length, volume; 306 { 307 struct asc_softc *sc = (struct asc_softc *)arg; 308 unsigned long cfreq; 309 int i; 310 311 if (!sc) 312 return (ENODEV); 313 314 if (sc->sc_ringing == 0) { 315 316 bus_space_write_multi_1(sc->sc_tag, sc->sc_handle, 317 0, 0, 0x800); 318 bus_space_write_region_1(sc->sc_tag, sc->sc_handle, 319 0, asc_wave_tab, 0x800); 320 321 /* Fix this. Need to find exact ASC sampling freq */ 322 cfreq = 65536 * freq / 466; 323 324 /* printf("beep: from %d, %02x %02x %02x %02x\n", 325 * cur_beep.freq, (cfreq >> 24) & 0xff, (cfreq >> 16) & 0xff, 326 * (cfreq >> 8) & 0xff, (cfreq) & 0xff); */ 327 for (i = 0; i < 8; i++) { 328 bus_space_write_1(sc->sc_tag, sc->sc_handle, 329 0x814 + 8 * i, (cfreq >> 24) & 0xff); 330 bus_space_write_1(sc->sc_tag, sc->sc_handle, 331 0x815 + 8 * i, (cfreq >> 16) & 0xff); 332 bus_space_write_1(sc->sc_tag, sc->sc_handle, 333 0x816 + 8 * i, (cfreq >> 8) & 0xff); 334 bus_space_write_1(sc->sc_tag, sc->sc_handle, 335 0x817 + 8 * i, (cfreq) & 0xff); 336 } /* frequency; should put cur_beep.freq in here 337 * somewhere. */ 338 339 bus_space_write_1(sc->sc_tag, sc->sc_handle, 0x807, 3); /* 44 ? */ 340 bus_space_write_1(sc->sc_tag, sc->sc_handle, 0x806, 341 255 * volume / 100); 342 bus_space_write_1(sc->sc_tag, sc->sc_handle, 0x805, 0); 343 bus_space_write_1(sc->sc_tag, sc->sc_handle, 0x80f, 0); 344 bus_space_write_1(sc->sc_tag, sc->sc_handle, 0x802, 2); /* sampled */ 345 bus_space_write_1(sc->sc_tag, sc->sc_handle, 0x801, 2); /* enable sampled */ 346 } 347 sc->sc_ringing++; 348 timeout(asc_stop_bell, sc, length); 349 350 return (0); 351 } 352 353 static void 354 asc_stop_bell(arg) 355 void *arg; 356 { 357 struct asc_softc *sc = (struct asc_softc *)arg; 358 359 if (!sc) 360 return; 361 362 if (sc->sc_ringing > 1000 || sc->sc_ringing < 0) 363 panic("bell got out of sync?"); 364 365 if (--sc->sc_ringing == 0) /* disable ASC */ 366 bus_space_write_1(sc->sc_tag, sc->sc_handle, 0x801, 0); 367 } 368 369 #if __notyet__ 370 static void 371 asc_intr_enable() 372 { 373 int s; 374 375 s = splhigh(); 376 if (VIA2 == VIA2OFF) 377 via2_reg(vIER) = 0x80 | V2IF_ASC; 378 else 379 via2_reg(rIER) = 0x80 | V2IF_ASC; 380 splx(s); 381 } 382 383 384 /*ARGSUSED*/ 385 static void 386 asc_intr(arg) 387 void *arg; 388 { 389 #ifdef ASC_DEBUG 390 struct asc_softc *sc = (struct asc_softc *)arg; 391 392 if (asc_debug) 393 printf("asc_intr(%p)\n", sc); 394 #endif 395 } 396 #endif 397
Indexes created Mon Sep 29 21:09:56 GMT 2025