1 /* $NetBSD: asc.c,v 1.44 2002/10/23 09:11:30 jdolecek 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/conf.h> 74 75 #include <uvm/uvm_extern.h> 76 77 #include <machine/autoconf.h> 78 #include <machine/cpu.h> 79 #include <machine/bus.h> 80 #include <machine/viareg.h> 81 82 #include <mac68k/obio/ascvar.h> 83 #include <mac68k/obio/obiovar.h> 84 85 #define MAC68K_ASC_BASE 0x50f14000 86 #define MAC68K_IIFX_ASC_BASE 0x50f10000 87 #define MAC68K_ASC_LEN 0x01000 88 89 #ifdef DEBUG 90 #define ASC_DEBUG 91 #endif 92 93 #ifdef ASC_DEBUG 94 int asc_debug = 0; /* non-zero enables debugging output */ 95 #endif 96 97 static u_int8_t asc_wave_tab[0x800]; 98 99 static int asc_ring_bell __P((void *, int, int, int)); 100 static void asc_stop_bell __P((void *)); 101 #if __notyet__ 102 static void asc_intr_enable __P((void)); 103 static void asc_intr __P((void *)); 104 #endif 105 106 static int ascmatch __P((struct device *, struct cfdata *, void *)); 107 static void ascattach __P((struct device *, struct device *, void *)); 108 109 CFATTACH_DECL(asc, sizeof(struct asc_softc), 110 ascmatch, ascattach, NULL, NULL); 111 112 extern struct cfdriver asc_cd; 113 114 dev_type_open(ascopen); 115 dev_type_close(ascclose); 116 dev_type_read(ascread); 117 dev_type_write(ascwrite); 118 dev_type_ioctl(ascioctl); 119 dev_type_mmap(ascmmap); 120 121 const struct cdevsw asc_cdevsw = { 122 ascopen, ascclose, ascread, ascwrite, ascioctl, 123 nostop, notty, nopoll, ascmmap, nokqfilter, 124 }; 125 126 static int 127 ascmatch(parent, cf, aux) 128 struct device *parent; 129 struct cfdata *cf; 130 void *aux; 131 { 132 struct obio_attach_args *oa = (struct obio_attach_args *)aux; 133 bus_addr_t addr; 134 bus_space_handle_t bsh; 135 int rval = 0; 136 137 if (oa->oa_addr != (-1)) 138 addr = (bus_addr_t)oa->oa_addr; 139 else if (current_mac_model->machineid == MACH_MACTV) 140 return 0; 141 else if (current_mac_model->machineid == MACH_MACIIFX) 142 addr = (bus_addr_t)MAC68K_IIFX_ASC_BASE; 143 else 144 addr = (bus_addr_t)MAC68K_ASC_BASE; 145 146 if (bus_space_map(oa->oa_tag, addr, MAC68K_ASC_LEN, 0, &bsh)) 147 return (0); 148 149 if (mac68k_bus_space_probe(oa->oa_tag, bsh, 0, 1)) 150 rval = 1; 151 else 152 rval = 0; 153 154 bus_space_unmap(oa->oa_tag, bsh, MAC68K_ASC_LEN); 155 156 return rval; 157 } 158 159 static void 160 ascattach(parent, self, aux) 161 struct device *parent, *self; 162 void *aux; 163 { 164 struct asc_softc *sc = (struct asc_softc *)self; 165 struct obio_attach_args *oa = (struct obio_attach_args *)aux; 166 bus_addr_t addr; 167 int i; 168 169 sc->sc_tag = oa->oa_tag; 170 if (oa->oa_addr != (-1)) 171 addr = (bus_addr_t)oa->oa_addr; 172 else if (current_mac_model->machineid == MACH_MACIIFX) 173 addr = (bus_addr_t)MAC68K_IIFX_ASC_BASE; 174 else 175 addr = (bus_addr_t)MAC68K_ASC_BASE; 176 if (bus_space_map(sc->sc_tag, addr, MAC68K_ASC_LEN, 0, 177 &sc->sc_handle)) { 178 printf(": can't map memory space\n"); 179 return; 180 } 181 sc->sc_open = 0; 182 sc->sc_ringing = 0; 183 callout_init(&sc->sc_bell_ch); 184 185 for (i = 0; i < 256; i++) { /* up part of wave, four voices? */ 186 asc_wave_tab[i] = i / 4; 187 asc_wave_tab[i + 512] = i / 4; 188 asc_wave_tab[i + 1024] = i / 4; 189 asc_wave_tab[i + 1536] = i / 4; 190 } 191 for (i = 0; i < 256; i++) { /* down part of wave, four voices? */ 192 asc_wave_tab[i + 256] = 0x3f - (i / 4); 193 asc_wave_tab[i + 768] = 0x3f - (i / 4); 194 asc_wave_tab[i + 1280] = 0x3f - (i / 4); 195 asc_wave_tab[i + 1792] = 0x3f - (i / 4); 196 } 197 198 printf(": Apple Sound Chip"); 199 if (oa->oa_addr != (-1)) 200 printf(" at %x", oa->oa_addr); 201 printf("\n"); 202 203 mac68k_set_bell_callback(asc_ring_bell, sc); 204 #if __notyet__ 205 if (mac68k_machine.aux_interrupts) { 206 intr_establish((int (*)(void *))asc_intr, sc, 5); 207 } else { 208 via2_register_irq(VIA2_ASC, asc_intr, sc); 209 } 210 asc_intr_enable(); 211 #endif 212 } 213 214 int 215 ascopen(dev, flag, mode, p) 216 dev_t dev; 217 int flag; 218 int mode; 219 struct proc *p; 220 { 221 struct asc_softc *sc; 222 int unit; 223 224 unit = ASCUNIT(dev); 225 sc = asc_cd.cd_devs[unit]; 226 if (unit >= asc_cd.cd_ndevs) 227 return (ENXIO); 228 if (sc->sc_open) 229 return (EBUSY); 230 sc->sc_open = 1; 231 232 return (0); 233 } 234 235 int 236 ascclose(dev, flag, mode, p) 237 dev_t dev; 238 int flag; 239 int mode; 240 struct proc *p; 241 { 242 struct asc_softc *sc; 243 244 sc = asc_cd.cd_devs[ASCUNIT(dev)]; 245 sc->sc_open = 0; 246 247 return (0); 248 } 249 250 int 251 ascread(dev, uio, ioflag) 252 dev_t dev; 253 struct uio *uio; 254 int ioflag; 255 { 256 return (ENXIO); 257 } 258 259 int 260 ascwrite(dev, uio, ioflag) 261 dev_t dev; 262 struct uio *uio; 263 int ioflag; 264 { 265 return (ENXIO); 266 } 267 268 int 269 ascioctl(dev, cmd, data, flag, p) 270 dev_t dev; 271 u_long cmd; 272 caddr_t data; 273 int flag; 274 struct proc *p; 275 { 276 struct asc_softc *sc; 277 int error; 278 int unit = ASCUNIT(dev); 279 280 sc = asc_cd.cd_devs[unit]; 281 error = 0; 282 283 switch (cmd) { 284 default: 285 error = EINVAL; 286 break; 287 } 288 return (error); 289 } 290 291 paddr_t 292 ascmmap(dev, off, prot) 293 dev_t dev; 294 off_t off; 295 int prot; 296 { 297 int unit = ASCUNIT(dev); 298 struct asc_softc *sc; 299 paddr_t pa; 300 301 sc = asc_cd.cd_devs[unit]; 302 if ((u_int)off < MAC68K_ASC_LEN) { 303 (void) pmap_extract(pmap_kernel(), (vaddr_t)sc->sc_handle.base, 304 &pa); 305 return m68k_btop(pa + off); 306 } 307 308 return (-1); 309 } 310 311 static int 312 asc_ring_bell(arg, freq, length, volume) 313 void *arg; 314 int freq, length, volume; 315 { 316 struct asc_softc *sc = (struct asc_softc *)arg; 317 unsigned long cfreq; 318 int i; 319 320 if (!sc) 321 return (ENODEV); 322 323 if (sc->sc_ringing == 0) { 324 325 bus_space_write_multi_1(sc->sc_tag, sc->sc_handle, 326 0, 0, 0x800); 327 bus_space_write_region_1(sc->sc_tag, sc->sc_handle, 328 0, asc_wave_tab, 0x800); 329 330 /* Fix this. Need to find exact ASC sampling freq */ 331 cfreq = 65536 * freq / 466; 332 333 /* printf("beep: from %d, %02x %02x %02x %02x\n", 334 * cur_beep.freq, (cfreq >> 24) & 0xff, (cfreq >> 16) & 0xff, 335 * (cfreq >> 8) & 0xff, (cfreq) & 0xff); */ 336 for (i = 0; i < 8; i++) { 337 bus_space_write_1(sc->sc_tag, sc->sc_handle, 338 0x814 + 8 * i, (cfreq >> 24) & 0xff); 339 bus_space_write_1(sc->sc_tag, sc->sc_handle, 340 0x815 + 8 * i, (cfreq >> 16) & 0xff); 341 bus_space_write_1(sc->sc_tag, sc->sc_handle, 342 0x816 + 8 * i, (cfreq >> 8) & 0xff); 343 bus_space_write_1(sc->sc_tag, sc->sc_handle, 344 0x817 + 8 * i, (cfreq) & 0xff); 345 } /* frequency; should put cur_beep.freq in here 346 * somewhere. */ 347 348 bus_space_write_1(sc->sc_tag, sc->sc_handle, 0x807, 3); /* 44 ? */ 349 bus_space_write_1(sc->sc_tag, sc->sc_handle, 0x806, 350 255 * volume / 100); 351 bus_space_write_1(sc->sc_tag, sc->sc_handle, 0x805, 0); 352 bus_space_write_1(sc->sc_tag, sc->sc_handle, 0x80f, 0); 353 bus_space_write_1(sc->sc_tag, sc->sc_handle, 0x802, 2); /* sampled */ 354 bus_space_write_1(sc->sc_tag, sc->sc_handle, 0x801, 2); /* enable sampled */ 355 sc->sc_ringing = 1; 356 callout_reset(&sc->sc_bell_ch, length, asc_stop_bell, sc); 357 } 358 359 return (0); 360 } 361 362 static void 363 asc_stop_bell(arg) 364 void *arg; 365 { 366 struct asc_softc *sc = (struct asc_softc *)arg; 367 368 if (!sc) 369 return; 370 371 if (sc->sc_ringing > 1000 || sc->sc_ringing < 0) 372 panic("bell got out of sync?"); 373 374 if (--sc->sc_ringing == 0) /* disable ASC */ 375 bus_space_write_1(sc->sc_tag, sc->sc_handle, 0x801, 0); 376 } 377 378 #if __notyet__ 379 static void 380 asc_intr_enable() 381 { 382 int s; 383 384 s = splhigh(); 385 if (VIA2 == VIA2OFF) 386 via2_reg(vIER) = 0x80 | V2IF_ASC; 387 else 388 via2_reg(rIER) = 0x80 | V2IF_ASC; 389 splx(s); 390 } 391 392 393 /*ARGSUSED*/ 394 static void 395 asc_intr(arg) 396 void *arg; 397 { 398 #ifdef ASC_DEBUG 399 struct asc_softc *sc = (struct asc_softc *)arg; 400 401 if (asc_debug) 402 printf("asc_intr(%p)\n", sc); 403 #endif 404 } 405 #endif 406