asc.c revision 1.35
1 /* $NetBSD: asc.c,v 1.35 2000/06/26 04:55:47 simonb 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 callout_init(&sc->sc_bell_ch); 172 173 for (i = 0; i < 256; i++) { /* up part of wave, four voices? */ 174 asc_wave_tab[i] = i / 4; 175 asc_wave_tab[i + 512] = i / 4; 176 asc_wave_tab[i + 1024] = i / 4; 177 asc_wave_tab[i + 1536] = i / 4; 178 } 179 for (i = 0; i < 256; i++) { /* down part of wave, four voices? */ 180 asc_wave_tab[i + 256] = 0x3f - (i / 4); 181 asc_wave_tab[i + 768] = 0x3f - (i / 4); 182 asc_wave_tab[i + 1280] = 0x3f - (i / 4); 183 asc_wave_tab[i + 1792] = 0x3f - (i / 4); 184 } 185 186 printf(": Apple Sound Chip"); 187 if (oa->oa_addr != (-1)) 188 printf(" at %x", oa->oa_addr); 189 printf("\n"); 190 191 mac68k_set_bell_callback(asc_ring_bell, sc); 192 #if __notyet__ 193 if (mac68k_machine.aux_interrupts) { 194 intr_establish((int (*)(void *))asc_intr, sc, 5); 195 } else { 196 via2_register_irq(VIA2_ASC, asc_intr, sc); 197 } 198 asc_intr_enable(); 199 #endif 200 } 201 202 int 203 ascopen(dev, flag, mode, p) 204 dev_t dev; 205 int flag; 206 int mode; 207 struct proc *p; 208 { 209 struct asc_softc *sc; 210 int unit; 211 212 unit = ASCUNIT(dev); 213 sc = asc_cd.cd_devs[unit]; 214 if (unit >= asc_cd.cd_ndevs) 215 return (ENXIO); 216 if (sc->sc_open) 217 return (EBUSY); 218 sc->sc_open = 1; 219 220 return (0); 221 } 222 223 int 224 ascclose(dev, flag, mode, p) 225 dev_t dev; 226 int flag; 227 int mode; 228 struct proc *p; 229 { 230 struct asc_softc *sc; 231 232 sc = asc_cd.cd_devs[ASCUNIT(dev)]; 233 sc->sc_open = 0; 234 235 return (0); 236 } 237 238 int 239 ascread(dev, uio, ioflag) 240 dev_t dev; 241 struct uio *uio; 242 int ioflag; 243 { 244 return (ENXIO); 245 } 246 247 int 248 ascwrite(dev, uio, ioflag) 249 dev_t dev; 250 struct uio *uio; 251 int ioflag; 252 { 253 return (ENXIO); 254 } 255 256 int 257 ascioctl(dev, cmd, data, flag, p) 258 dev_t dev; 259 int cmd; 260 caddr_t data; 261 int flag; 262 struct proc *p; 263 { 264 struct asc_softc *sc; 265 int error; 266 int unit = ASCUNIT(dev); 267 268 sc = asc_cd.cd_devs[unit]; 269 error = 0; 270 271 switch (cmd) { 272 default: 273 error = EINVAL; 274 break; 275 } 276 return (error); 277 } 278 279 int 280 ascpoll(dev, events, p) 281 dev_t dev; 282 int events; 283 struct proc *p; 284 { 285 return (events & (POLLOUT | POLLWRNORM)); 286 } 287 288 paddr_t 289 ascmmap(dev, off, prot) 290 dev_t dev; 291 off_t off; 292 int prot; 293 { 294 int unit = ASCUNIT(dev); 295 struct asc_softc *sc; 296 paddr_t pa; 297 298 sc = asc_cd.cd_devs[unit]; 299 if ((u_int)off < MAC68K_ASC_LEN) { 300 (void) pmap_extract(pmap_kernel(), (vaddr_t)sc->sc_handle, &pa); 301 return m68k_btop(pa + off); 302 } 303 304 return (-1); 305 } 306 307 static int 308 asc_ring_bell(arg, freq, length, volume) 309 void *arg; 310 int freq, length, volume; 311 { 312 struct asc_softc *sc = (struct asc_softc *)arg; 313 unsigned long cfreq; 314 int i; 315 316 if (!sc) 317 return (ENODEV); 318 319 if (sc->sc_ringing == 0) { 320 321 bus_space_write_multi_1(sc->sc_tag, sc->sc_handle, 322 0, 0, 0x800); 323 bus_space_write_region_1(sc->sc_tag, sc->sc_handle, 324 0, asc_wave_tab, 0x800); 325 326 /* Fix this. Need to find exact ASC sampling freq */ 327 cfreq = 65536 * freq / 466; 328 329 /* printf("beep: from %d, %02x %02x %02x %02x\n", 330 * cur_beep.freq, (cfreq >> 24) & 0xff, (cfreq >> 16) & 0xff, 331 * (cfreq >> 8) & 0xff, (cfreq) & 0xff); */ 332 for (i = 0; i < 8; i++) { 333 bus_space_write_1(sc->sc_tag, sc->sc_handle, 334 0x814 + 8 * i, (cfreq >> 24) & 0xff); 335 bus_space_write_1(sc->sc_tag, sc->sc_handle, 336 0x815 + 8 * i, (cfreq >> 16) & 0xff); 337 bus_space_write_1(sc->sc_tag, sc->sc_handle, 338 0x816 + 8 * i, (cfreq >> 8) & 0xff); 339 bus_space_write_1(sc->sc_tag, sc->sc_handle, 340 0x817 + 8 * i, (cfreq) & 0xff); 341 } /* frequency; should put cur_beep.freq in here 342 * somewhere. */ 343 344 bus_space_write_1(sc->sc_tag, sc->sc_handle, 0x807, 3); /* 44 ? */ 345 bus_space_write_1(sc->sc_tag, sc->sc_handle, 0x806, 346 255 * volume / 100); 347 bus_space_write_1(sc->sc_tag, sc->sc_handle, 0x805, 0); 348 bus_space_write_1(sc->sc_tag, sc->sc_handle, 0x80f, 0); 349 bus_space_write_1(sc->sc_tag, sc->sc_handle, 0x802, 2); /* sampled */ 350 bus_space_write_1(sc->sc_tag, sc->sc_handle, 0x801, 2); /* enable sampled */ 351 sc->sc_ringing = 1; 352 callout_reset(&sc->sc_bell_ch, length, asc_stop_bell, sc); 353 } 354 355 return (0); 356 } 357 358 static void 359 asc_stop_bell(arg) 360 void *arg; 361 { 362 struct asc_softc *sc = (struct asc_softc *)arg; 363 364 if (!sc) 365 return; 366 367 if (sc->sc_ringing > 1000 || sc->sc_ringing < 0) 368 panic("bell got out of sync?"); 369 370 if (--sc->sc_ringing == 0) /* disable ASC */ 371 bus_space_write_1(sc->sc_tag, sc->sc_handle, 0x801, 0); 372 } 373 374 #if __notyet__ 375 static void 376 asc_intr_enable() 377 { 378 int s; 379 380 s = splhigh(); 381 if (VIA2 == VIA2OFF) 382 via2_reg(vIER) = 0x80 | V2IF_ASC; 383 else 384 via2_reg(rIER) = 0x80 | V2IF_ASC; 385 splx(s); 386 } 387 388 389 /*ARGSUSED*/ 390 static void 391 asc_intr(arg) 392 void *arg; 393 { 394 #ifdef ASC_DEBUG 395 struct asc_softc *sc = (struct asc_softc *)arg; 396 397 if (asc_debug) 398 printf("asc_intr(%p)\n", sc); 399 #endif 400 } 401 #endif 402
Indexes created Sun Sep 28 16:09:52 GMT 2025