asc.c revision 1.42
1 /* $NetBSD: asc.c,v 1.42 2002/10/02 05:36:38 thorpej 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 CFATTACH_DECL(asc, sizeof(struct asc_softc), 111 ascmatch, ascattach, NULL, NULL); 112 113 extern struct cfdriver asc_cd; 114 115 dev_type_open(ascopen); 116 dev_type_close(ascclose); 117 dev_type_read(ascread); 118 dev_type_write(ascwrite); 119 dev_type_ioctl(ascioctl); 120 dev_type_poll(ascpoll); 121 dev_type_mmap(ascmmap); 122 123 const struct cdevsw asc_cdevsw = { 124 ascopen, ascclose, ascread, ascwrite, ascioctl, 125 nostop, notty, ascpoll, ascmmap, 126 }; 127 128 static int 129 ascmatch(parent, cf, aux) 130 struct device *parent; 131 struct cfdata *cf; 132 void *aux; 133 { 134 struct obio_attach_args *oa = (struct obio_attach_args *)aux; 135 bus_addr_t addr; 136 bus_space_handle_t bsh; 137 int rval = 0; 138 139 if (oa->oa_addr != (-1)) 140 addr = (bus_addr_t)oa->oa_addr; 141 else if (current_mac_model->machineid == MACH_MACTV) 142 return 0; 143 else if (current_mac_model->machineid == MACH_MACIIFX) 144 addr = (bus_addr_t)MAC68K_IIFX_ASC_BASE; 145 else 146 addr = (bus_addr_t)MAC68K_ASC_BASE; 147 148 if (bus_space_map(oa->oa_tag, addr, MAC68K_ASC_LEN, 0, &bsh)) 149 return (0); 150 151 if (mac68k_bus_space_probe(oa->oa_tag, bsh, 0, 1)) 152 rval = 1; 153 else 154 rval = 0; 155 156 bus_space_unmap(oa->oa_tag, bsh, MAC68K_ASC_LEN); 157 158 return rval; 159 } 160 161 static void 162 ascattach(parent, self, aux) 163 struct device *parent, *self; 164 void *aux; 165 { 166 struct asc_softc *sc = (struct asc_softc *)self; 167 struct obio_attach_args *oa = (struct obio_attach_args *)aux; 168 bus_addr_t addr; 169 int i; 170 171 sc->sc_tag = oa->oa_tag; 172 if (oa->oa_addr != (-1)) 173 addr = (bus_addr_t)oa->oa_addr; 174 else if (current_mac_model->machineid == MACH_MACIIFX) 175 addr = (bus_addr_t)MAC68K_IIFX_ASC_BASE; 176 else 177 addr = (bus_addr_t)MAC68K_ASC_BASE; 178 if (bus_space_map(sc->sc_tag, addr, MAC68K_ASC_LEN, 0, 179 &sc->sc_handle)) { 180 printf(": can't map memory space\n"); 181 return; 182 } 183 sc->sc_open = 0; 184 sc->sc_ringing = 0; 185 callout_init(&sc->sc_bell_ch); 186 187 for (i = 0; i < 256; i++) { /* up part of wave, four voices? */ 188 asc_wave_tab[i] = i / 4; 189 asc_wave_tab[i + 512] = i / 4; 190 asc_wave_tab[i + 1024] = i / 4; 191 asc_wave_tab[i + 1536] = i / 4; 192 } 193 for (i = 0; i < 256; i++) { /* down part of wave, four voices? */ 194 asc_wave_tab[i + 256] = 0x3f - (i / 4); 195 asc_wave_tab[i + 768] = 0x3f - (i / 4); 196 asc_wave_tab[i + 1280] = 0x3f - (i / 4); 197 asc_wave_tab[i + 1792] = 0x3f - (i / 4); 198 } 199 200 printf(": Apple Sound Chip"); 201 if (oa->oa_addr != (-1)) 202 printf(" at %x", oa->oa_addr); 203 printf("\n"); 204 205 mac68k_set_bell_callback(asc_ring_bell, sc); 206 #if __notyet__ 207 if (mac68k_machine.aux_interrupts) { 208 intr_establish((int (*)(void *))asc_intr, sc, 5); 209 } else { 210 via2_register_irq(VIA2_ASC, asc_intr, sc); 211 } 212 asc_intr_enable(); 213 #endif 214 } 215 216 int 217 ascopen(dev, flag, mode, p) 218 dev_t dev; 219 int flag; 220 int mode; 221 struct proc *p; 222 { 223 struct asc_softc *sc; 224 int unit; 225 226 unit = ASCUNIT(dev); 227 sc = asc_cd.cd_devs[unit]; 228 if (unit >= asc_cd.cd_ndevs) 229 return (ENXIO); 230 if (sc->sc_open) 231 return (EBUSY); 232 sc->sc_open = 1; 233 234 return (0); 235 } 236 237 int 238 ascclose(dev, flag, mode, p) 239 dev_t dev; 240 int flag; 241 int mode; 242 struct proc *p; 243 { 244 struct asc_softc *sc; 245 246 sc = asc_cd.cd_devs[ASCUNIT(dev)]; 247 sc->sc_open = 0; 248 249 return (0); 250 } 251 252 int 253 ascread(dev, uio, ioflag) 254 dev_t dev; 255 struct uio *uio; 256 int ioflag; 257 { 258 return (ENXIO); 259 } 260 261 int 262 ascwrite(dev, uio, ioflag) 263 dev_t dev; 264 struct uio *uio; 265 int ioflag; 266 { 267 return (ENXIO); 268 } 269 270 int 271 ascioctl(dev, cmd, data, flag, p) 272 dev_t dev; 273 u_long cmd; 274 caddr_t data; 275 int flag; 276 struct proc *p; 277 { 278 struct asc_softc *sc; 279 int error; 280 int unit = ASCUNIT(dev); 281 282 sc = asc_cd.cd_devs[unit]; 283 error = 0; 284 285 switch (cmd) { 286 default: 287 error = EINVAL; 288 break; 289 } 290 return (error); 291 } 292 293 int 294 ascpoll(dev, events, p) 295 dev_t dev; 296 int events; 297 struct proc *p; 298 { 299 return (events & (POLLOUT | POLLWRNORM)); 300 } 301 302 paddr_t 303 ascmmap(dev, off, prot) 304 dev_t dev; 305 off_t off; 306 int prot; 307 { 308 int unit = ASCUNIT(dev); 309 struct asc_softc *sc; 310 paddr_t pa; 311 312 sc = asc_cd.cd_devs[unit]; 313 if ((u_int)off < MAC68K_ASC_LEN) { 314 (void) pmap_extract(pmap_kernel(), (vaddr_t)sc->sc_handle.base, 315 &pa); 316 return m68k_btop(pa + off); 317 } 318 319 return (-1); 320 } 321 322 static int 323 asc_ring_bell(arg, freq, length, volume) 324 void *arg; 325 int freq, length, volume; 326 { 327 struct asc_softc *sc = (struct asc_softc *)arg; 328 unsigned long cfreq; 329 int i; 330 331 if (!sc) 332 return (ENODEV); 333 334 if (sc->sc_ringing == 0) { 335 336 bus_space_write_multi_1(sc->sc_tag, sc->sc_handle, 337 0, 0, 0x800); 338 bus_space_write_region_1(sc->sc_tag, sc->sc_handle, 339 0, asc_wave_tab, 0x800); 340 341 /* Fix this. Need to find exact ASC sampling freq */ 342 cfreq = 65536 * freq / 466; 343 344 /* printf("beep: from %d, %02x %02x %02x %02x\n", 345 * cur_beep.freq, (cfreq >> 24) & 0xff, (cfreq >> 16) & 0xff, 346 * (cfreq >> 8) & 0xff, (cfreq) & 0xff); */ 347 for (i = 0; i < 8; i++) { 348 bus_space_write_1(sc->sc_tag, sc->sc_handle, 349 0x814 + 8 * i, (cfreq >> 24) & 0xff); 350 bus_space_write_1(sc->sc_tag, sc->sc_handle, 351 0x815 + 8 * i, (cfreq >> 16) & 0xff); 352 bus_space_write_1(sc->sc_tag, sc->sc_handle, 353 0x816 + 8 * i, (cfreq >> 8) & 0xff); 354 bus_space_write_1(sc->sc_tag, sc->sc_handle, 355 0x817 + 8 * i, (cfreq) & 0xff); 356 } /* frequency; should put cur_beep.freq in here 357 * somewhere. */ 358 359 bus_space_write_1(sc->sc_tag, sc->sc_handle, 0x807, 3); /* 44 ? */ 360 bus_space_write_1(sc->sc_tag, sc->sc_handle, 0x806, 361 255 * volume / 100); 362 bus_space_write_1(sc->sc_tag, sc->sc_handle, 0x805, 0); 363 bus_space_write_1(sc->sc_tag, sc->sc_handle, 0x80f, 0); 364 bus_space_write_1(sc->sc_tag, sc->sc_handle, 0x802, 2); /* sampled */ 365 bus_space_write_1(sc->sc_tag, sc->sc_handle, 0x801, 2); /* enable sampled */ 366 sc->sc_ringing = 1; 367 callout_reset(&sc->sc_bell_ch, length, asc_stop_bell, sc); 368 } 369 370 return (0); 371 } 372 373 static void 374 asc_stop_bell(arg) 375 void *arg; 376 { 377 struct asc_softc *sc = (struct asc_softc *)arg; 378 379 if (!sc) 380 return; 381 382 if (sc->sc_ringing > 1000 || sc->sc_ringing < 0) 383 panic("bell got out of sync?"); 384 385 if (--sc->sc_ringing == 0) /* disable ASC */ 386 bus_space_write_1(sc->sc_tag, sc->sc_handle, 0x801, 0); 387 } 388 389 #if __notyet__ 390 static void 391 asc_intr_enable() 392 { 393 int s; 394 395 s = splhigh(); 396 if (VIA2 == VIA2OFF) 397 via2_reg(vIER) = 0x80 | V2IF_ASC; 398 else 399 via2_reg(rIER) = 0x80 | V2IF_ASC; 400 splx(s); 401 } 402 403 404 /*ARGSUSED*/ 405 static void 406 asc_intr(arg) 407 void *arg; 408 { 409 #ifdef ASC_DEBUG 410 struct asc_softc *sc = (struct asc_softc *)arg; 411 412 if (asc_debug) 413 printf("asc_intr(%p)\n", sc); 414 #endif 415 } 416 #endif 417
Indexes created Mon Sep 29 21:09:56 GMT 2025