asc.c revision 1.40
1 /* $NetBSD: asc.c,v 1.40 2002/09/06 13:18:43 gehenna 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 #include <sys/conf.h> 75 76 #include <uvm/uvm_extern.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 dev_type_open(ascopen); 117 dev_type_close(ascclose); 118 dev_type_read(ascread); 119 dev_type_write(ascwrite); 120 dev_type_ioctl(ascioctl); 121 dev_type_poll(ascpoll); 122 dev_type_mmap(ascmmap); 123 124 const struct cdevsw asc_cdevsw = { 125 ascopen, ascclose, ascread, ascwrite, ascioctl, 126 nostop, notty, ascpoll, ascmmap, 127 }; 128 129 static int 130 ascmatch(parent, cf, aux) 131 struct device *parent; 132 struct cfdata *cf; 133 void *aux; 134 { 135 struct obio_attach_args *oa = (struct obio_attach_args *)aux; 136 bus_addr_t addr; 137 bus_space_handle_t bsh; 138 int rval = 0; 139 140 if (oa->oa_addr != (-1)) 141 addr = (bus_addr_t)oa->oa_addr; 142 else if (current_mac_model->machineid == MACH_MACTV) 143 return 0; 144 else if (current_mac_model->machineid == MACH_MACIIFX) 145 addr = (bus_addr_t)MAC68K_IIFX_ASC_BASE; 146 else 147 addr = (bus_addr_t)MAC68K_ASC_BASE; 148 149 if (bus_space_map(oa->oa_tag, addr, MAC68K_ASC_LEN, 0, &bsh)) 150 return (0); 151 152 if (mac68k_bus_space_probe(oa->oa_tag, bsh, 0, 1)) 153 rval = 1; 154 else 155 rval = 0; 156 157 bus_space_unmap(oa->oa_tag, bsh, MAC68K_ASC_LEN); 158 159 return rval; 160 } 161 162 static void 163 ascattach(parent, self, aux) 164 struct device *parent, *self; 165 void *aux; 166 { 167 struct asc_softc *sc = (struct asc_softc *)self; 168 struct obio_attach_args *oa = (struct obio_attach_args *)aux; 169 bus_addr_t addr; 170 int i; 171 172 sc->sc_tag = oa->oa_tag; 173 if (oa->oa_addr != (-1)) 174 addr = (bus_addr_t)oa->oa_addr; 175 else if (current_mac_model->machineid == MACH_MACIIFX) 176 addr = (bus_addr_t)MAC68K_IIFX_ASC_BASE; 177 else 178 addr = (bus_addr_t)MAC68K_ASC_BASE; 179 if (bus_space_map(sc->sc_tag, addr, MAC68K_ASC_LEN, 0, 180 &sc->sc_handle)) { 181 printf(": can't map memory space\n"); 182 return; 183 } 184 sc->sc_open = 0; 185 sc->sc_ringing = 0; 186 callout_init(&sc->sc_bell_ch); 187 188 for (i = 0; i < 256; i++) { /* up part of wave, four voices? */ 189 asc_wave_tab[i] = i / 4; 190 asc_wave_tab[i + 512] = i / 4; 191 asc_wave_tab[i + 1024] = i / 4; 192 asc_wave_tab[i + 1536] = i / 4; 193 } 194 for (i = 0; i < 256; i++) { /* down part of wave, four voices? */ 195 asc_wave_tab[i + 256] = 0x3f - (i / 4); 196 asc_wave_tab[i + 768] = 0x3f - (i / 4); 197 asc_wave_tab[i + 1280] = 0x3f - (i / 4); 198 asc_wave_tab[i + 1792] = 0x3f - (i / 4); 199 } 200 201 printf(": Apple Sound Chip"); 202 if (oa->oa_addr != (-1)) 203 printf(" at %x", oa->oa_addr); 204 printf("\n"); 205 206 mac68k_set_bell_callback(asc_ring_bell, sc); 207 #if __notyet__ 208 if (mac68k_machine.aux_interrupts) { 209 intr_establish((int (*)(void *))asc_intr, sc, 5); 210 } else { 211 via2_register_irq(VIA2_ASC, asc_intr, sc); 212 } 213 asc_intr_enable(); 214 #endif 215 } 216 217 int 218 ascopen(dev, flag, mode, p) 219 dev_t dev; 220 int flag; 221 int mode; 222 struct proc *p; 223 { 224 struct asc_softc *sc; 225 int unit; 226 227 unit = ASCUNIT(dev); 228 sc = asc_cd.cd_devs[unit]; 229 if (unit >= asc_cd.cd_ndevs) 230 return (ENXIO); 231 if (sc->sc_open) 232 return (EBUSY); 233 sc->sc_open = 1; 234 235 return (0); 236 } 237 238 int 239 ascclose(dev, flag, mode, p) 240 dev_t dev; 241 int flag; 242 int mode; 243 struct proc *p; 244 { 245 struct asc_softc *sc; 246 247 sc = asc_cd.cd_devs[ASCUNIT(dev)]; 248 sc->sc_open = 0; 249 250 return (0); 251 } 252 253 int 254 ascread(dev, uio, ioflag) 255 dev_t dev; 256 struct uio *uio; 257 int ioflag; 258 { 259 return (ENXIO); 260 } 261 262 int 263 ascwrite(dev, uio, ioflag) 264 dev_t dev; 265 struct uio *uio; 266 int ioflag; 267 { 268 return (ENXIO); 269 } 270 271 int 272 ascioctl(dev, cmd, data, flag, p) 273 dev_t dev; 274 u_long cmd; 275 caddr_t data; 276 int flag; 277 struct proc *p; 278 { 279 struct asc_softc *sc; 280 int error; 281 int unit = ASCUNIT(dev); 282 283 sc = asc_cd.cd_devs[unit]; 284 error = 0; 285 286 switch (cmd) { 287 default: 288 error = EINVAL; 289 break; 290 } 291 return (error); 292 } 293 294 int 295 ascpoll(dev, events, p) 296 dev_t dev; 297 int events; 298 struct proc *p; 299 { 300 return (events & (POLLOUT | POLLWRNORM)); 301 } 302 303 paddr_t 304 ascmmap(dev, off, prot) 305 dev_t dev; 306 off_t off; 307 int prot; 308 { 309 int unit = ASCUNIT(dev); 310 struct asc_softc *sc; 311 paddr_t pa; 312 313 sc = asc_cd.cd_devs[unit]; 314 if ((u_int)off < MAC68K_ASC_LEN) { 315 (void) pmap_extract(pmap_kernel(), (vaddr_t)sc->sc_handle.base, 316 &pa); 317 return m68k_btop(pa + off); 318 } 319 320 return (-1); 321 } 322 323 static int 324 asc_ring_bell(arg, freq, length, volume) 325 void *arg; 326 int freq, length, volume; 327 { 328 struct asc_softc *sc = (struct asc_softc *)arg; 329 unsigned long cfreq; 330 int i; 331 332 if (!sc) 333 return (ENODEV); 334 335 if (sc->sc_ringing == 0) { 336 337 bus_space_write_multi_1(sc->sc_tag, sc->sc_handle, 338 0, 0, 0x800); 339 bus_space_write_region_1(sc->sc_tag, sc->sc_handle, 340 0, asc_wave_tab, 0x800); 341 342 /* Fix this. Need to find exact ASC sampling freq */ 343 cfreq = 65536 * freq / 466; 344 345 /* printf("beep: from %d, %02x %02x %02x %02x\n", 346 * cur_beep.freq, (cfreq >> 24) & 0xff, (cfreq >> 16) & 0xff, 347 * (cfreq >> 8) & 0xff, (cfreq) & 0xff); */ 348 for (i = 0; i < 8; i++) { 349 bus_space_write_1(sc->sc_tag, sc->sc_handle, 350 0x814 + 8 * i, (cfreq >> 24) & 0xff); 351 bus_space_write_1(sc->sc_tag, sc->sc_handle, 352 0x815 + 8 * i, (cfreq >> 16) & 0xff); 353 bus_space_write_1(sc->sc_tag, sc->sc_handle, 354 0x816 + 8 * i, (cfreq >> 8) & 0xff); 355 bus_space_write_1(sc->sc_tag, sc->sc_handle, 356 0x817 + 8 * i, (cfreq) & 0xff); 357 } /* frequency; should put cur_beep.freq in here 358 * somewhere. */ 359 360 bus_space_write_1(sc->sc_tag, sc->sc_handle, 0x807, 3); /* 44 ? */ 361 bus_space_write_1(sc->sc_tag, sc->sc_handle, 0x806, 362 255 * volume / 100); 363 bus_space_write_1(sc->sc_tag, sc->sc_handle, 0x805, 0); 364 bus_space_write_1(sc->sc_tag, sc->sc_handle, 0x80f, 0); 365 bus_space_write_1(sc->sc_tag, sc->sc_handle, 0x802, 2); /* sampled */ 366 bus_space_write_1(sc->sc_tag, sc->sc_handle, 0x801, 2); /* enable sampled */ 367 sc->sc_ringing = 1; 368 callout_reset(&sc->sc_bell_ch, length, asc_stop_bell, sc); 369 } 370 371 return (0); 372 } 373 374 static void 375 asc_stop_bell(arg) 376 void *arg; 377 { 378 struct asc_softc *sc = (struct asc_softc *)arg; 379 380 if (!sc) 381 return; 382 383 if (sc->sc_ringing > 1000 || sc->sc_ringing < 0) 384 panic("bell got out of sync?"); 385 386 if (--sc->sc_ringing == 0) /* disable ASC */ 387 bus_space_write_1(sc->sc_tag, sc->sc_handle, 0x801, 0); 388 } 389 390 #if __notyet__ 391 static void 392 asc_intr_enable() 393 { 394 int s; 395 396 s = splhigh(); 397 if (VIA2 == VIA2OFF) 398 via2_reg(vIER) = 0x80 | V2IF_ASC; 399 else 400 via2_reg(rIER) = 0x80 | V2IF_ASC; 401 splx(s); 402 } 403 404 405 /*ARGSUSED*/ 406 static void 407 asc_intr(arg) 408 void *arg; 409 { 410 #ifdef ASC_DEBUG 411 struct asc_softc *sc = (struct asc_softc *)arg; 412 413 if (asc_debug) 414 printf("asc_intr(%p)\n", sc); 415 #endif 416 } 417 #endif 418
Indexes created Mon Sep 29 21:09:56 GMT 2025