asc.c revision 1.57
1 /* $NetBSD: asc.c,v 1.57 2014/07/25 08:10:34 dholland 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/cdefs.h> 67 __KERNEL_RCSID(0, "$NetBSD: asc.c,v 1.57 2014/07/25 08:10:34 dholland Exp $"); 68 69 #include <sys/types.h> 70 #include <sys/errno.h> 71 #include <sys/time.h> 72 #include <sys/systm.h> 73 #include <sys/param.h> 74 #include <sys/device.h> 75 #include <sys/conf.h> 76 77 #include <uvm/uvm_extern.h> 78 79 #include <machine/autoconf.h> 80 #include <machine/cpu.h> 81 #include <machine/bus.h> 82 #include <machine/viareg.h> 83 84 #include <mac68k/obio/ascvar.h> 85 #include <mac68k/obio/obiovar.h> 86 87 #define MAC68K_ASC_BASE 0x50f14000 88 #define MAC68K_IIFX_ASC_BASE 0x50f10000 89 #define MAC68K_ASC_LEN 0x01000 90 91 #ifdef DEBUG 92 #define ASC_DEBUG 93 #endif 94 95 #ifdef ASC_DEBUG 96 int asc_debug = 0; /* non-zero enables debugging output */ 97 #endif 98 99 static u_int8_t asc_wave_tab[0x800]; 100 101 static int asc_ring_bell(void *, int, int, int); 102 static void asc_stop_bell(void *); 103 #if __notyet__ 104 static void asc_intr_enable(void); 105 static void asc_intr(void *); 106 #endif 107 108 static int ascmatch(device_t, cfdata_t, void *); 109 static void ascattach(device_t, device_t, void *); 110 111 CFATTACH_DECL_NEW(asc, sizeof(struct asc_softc), 112 ascmatch, ascattach, NULL, NULL); 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_mmap(ascmmap); 122 123 const struct cdevsw asc_cdevsw = { 124 .d_open = ascopen, 125 .d_close = ascclose, 126 .d_read = ascread, 127 .d_write = ascwrite, 128 .d_ioctl = ascioctl, 129 .d_stop = nostop, 130 .d_tty = notty, 131 .d_poll = nopoll, 132 .d_mmap = ascmmap, 133 .d_kqfilter = nokqfilter, 134 .d_discard = nodiscard, 135 .d_flag = 0 136 }; 137 138 static int 139 ascmatch(device_t parent, cfdata_t cf, void *aux) 140 { 141 struct obio_attach_args *oa = (struct obio_attach_args *)aux; 142 bus_addr_t addr; 143 bus_space_handle_t bsh; 144 int rval = 0; 145 146 if (oa->oa_addr != (-1)) 147 addr = (bus_addr_t)oa->oa_addr; 148 else if (current_mac_model->machineid == MACH_MACTV) 149 return 0; 150 else if (current_mac_model->machineid == MACH_MACIIFX) 151 addr = (bus_addr_t)MAC68K_IIFX_ASC_BASE; 152 else 153 addr = (bus_addr_t)MAC68K_ASC_BASE; 154 155 if (bus_space_map(oa->oa_tag, addr, MAC68K_ASC_LEN, 0, &bsh)) 156 return (0); 157 158 if (mac68k_bus_space_probe(oa->oa_tag, bsh, 0, 1)) 159 rval = 1; 160 else 161 rval = 0; 162 163 bus_space_unmap(oa->oa_tag, bsh, MAC68K_ASC_LEN); 164 165 return rval; 166 } 167 168 static void 169 ascattach(device_t parent, device_t self, void *aux) 170 { 171 struct asc_softc *sc = device_private(self); 172 struct obio_attach_args *oa = (struct obio_attach_args *)aux; 173 bus_addr_t addr; 174 int i; 175 176 sc->sc_dev = self; 177 sc->sc_tag = oa->oa_tag; 178 if (oa->oa_addr != (-1)) 179 addr = (bus_addr_t)oa->oa_addr; 180 else if (current_mac_model->machineid == MACH_MACIIFX) 181 addr = (bus_addr_t)MAC68K_IIFX_ASC_BASE; 182 else 183 addr = (bus_addr_t)MAC68K_ASC_BASE; 184 if (bus_space_map(sc->sc_tag, addr, MAC68K_ASC_LEN, 0, 185 &sc->sc_handle)) { 186 printf(": can't map memory space\n"); 187 return; 188 } 189 sc->sc_open = 0; 190 sc->sc_ringing = 0; 191 callout_init(&sc->sc_bell_ch, 0); 192 193 for (i = 0; i < 256; i++) { /* up part of wave, four voices? */ 194 asc_wave_tab[i] = i / 4; 195 asc_wave_tab[i + 512] = i / 4; 196 asc_wave_tab[i + 1024] = i / 4; 197 asc_wave_tab[i + 1536] = i / 4; 198 } 199 for (i = 0; i < 256; i++) { /* down part of wave, four voices? */ 200 asc_wave_tab[i + 256] = 0x3f - (i / 4); 201 asc_wave_tab[i + 768] = 0x3f - (i / 4); 202 asc_wave_tab[i + 1280] = 0x3f - (i / 4); 203 asc_wave_tab[i + 1792] = 0x3f - (i / 4); 204 } 205 206 printf(": Apple Sound Chip"); 207 if (oa->oa_addr != (-1)) 208 printf(" at %x", oa->oa_addr); 209 printf("\n"); 210 211 mac68k_set_bell_callback(asc_ring_bell, sc); 212 #if __notyet__ 213 if (mac68k_machine.aux_interrupts) { 214 intr_establish((int (*)(void *))asc_intr, sc, 5); 215 } else { 216 via2_register_irq(VIA2_ASC, asc_intr, sc); 217 } 218 asc_intr_enable(); 219 #endif 220 } 221 222 int 223 ascopen(dev_t dev, int flag, int mode, struct lwp *l) 224 { 225 struct asc_softc *sc; 226 227 sc = device_lookup_private(&asc_cd, ASCUNIT(dev)); 228 if (sc == NULL) 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_t dev, int flag, int mode, struct lwp *l) 239 { 240 struct asc_softc *sc; 241 242 sc = device_lookup_private(&asc_cd, ASCUNIT(dev)); 243 sc->sc_open = 0; 244 245 return (0); 246 } 247 248 int 249 ascread(dev_t dev, struct uio *uio, int ioflag) 250 { 251 return (ENXIO); 252 } 253 254 int 255 ascwrite(dev_t dev, struct uio *uio, int ioflag) 256 { 257 return (ENXIO); 258 } 259 260 int 261 ascioctl(dev_t dev, u_long cmd, void *data, int flag, struct lwp *l) 262 { 263 int error; 264 #ifdef not_yet 265 struct asc_softc *sc; 266 int unit = ASCUNIT(dev); 267 268 sc = device_lookup_private(&asc_cd, unit); 269 #endif 270 error = 0; 271 272 switch (cmd) { 273 default: 274 error = EINVAL; 275 break; 276 } 277 return (error); 278 } 279 280 paddr_t 281 ascmmap(dev_t dev, off_t off, int prot) 282 { 283 struct asc_softc *sc; 284 paddr_t pa; 285 286 sc = device_lookup_private(&asc_cd, ASCUNIT(dev)); 287 if ((u_int)off < MAC68K_ASC_LEN) { 288 (void) pmap_extract(pmap_kernel(), (vaddr_t)sc->sc_handle.base, 289 &pa); 290 return m68k_btop(pa + off); 291 } 292 293 return (-1); 294 } 295 296 static int 297 asc_ring_bell(void *arg, int freq, int length, int volume) 298 { 299 struct asc_softc *sc = (struct asc_softc *)arg; 300 unsigned long cfreq; 301 int i; 302 303 if (!sc) 304 return (ENODEV); 305 306 if (sc->sc_ringing == 0) { 307 308 bus_space_write_multi_1(sc->sc_tag, sc->sc_handle, 309 0, 0, 0x800); 310 bus_space_write_region_1(sc->sc_tag, sc->sc_handle, 311 0, asc_wave_tab, 0x800); 312 313 /* Fix this. Need to find exact ASC sampling freq */ 314 cfreq = 65536 * freq / 466; 315 316 /* printf("beep: from %d, %02x %02x %02x %02x\n", 317 * cur_beep.freq, (cfreq >> 24) & 0xff, (cfreq >> 16) & 0xff, 318 * (cfreq >> 8) & 0xff, (cfreq) & 0xff); */ 319 for (i = 0; i < 8; i++) { 320 bus_space_write_1(sc->sc_tag, sc->sc_handle, 321 0x814 + 8 * i, (cfreq >> 24) & 0xff); 322 bus_space_write_1(sc->sc_tag, sc->sc_handle, 323 0x815 + 8 * i, (cfreq >> 16) & 0xff); 324 bus_space_write_1(sc->sc_tag, sc->sc_handle, 325 0x816 + 8 * i, (cfreq >> 8) & 0xff); 326 bus_space_write_1(sc->sc_tag, sc->sc_handle, 327 0x817 + 8 * i, (cfreq) & 0xff); 328 } /* frequency; should put cur_beep.freq in here 329 * somewhere. */ 330 331 bus_space_write_1(sc->sc_tag, sc->sc_handle, 0x807, 3); /* 44 ? */ 332 bus_space_write_1(sc->sc_tag, sc->sc_handle, 0x806, 333 255 * volume / 100); 334 bus_space_write_1(sc->sc_tag, sc->sc_handle, 0x805, 0); 335 bus_space_write_1(sc->sc_tag, sc->sc_handle, 0x80f, 0); 336 bus_space_write_1(sc->sc_tag, sc->sc_handle, 0x802, 2); /* sampled */ 337 bus_space_write_1(sc->sc_tag, sc->sc_handle, 0x801, 2); /* enable sampled */ 338 sc->sc_ringing = 1; 339 callout_reset(&sc->sc_bell_ch, length, asc_stop_bell, sc); 340 } 341 342 return (0); 343 } 344 345 static void 346 asc_stop_bell(void *arg) 347 { 348 struct asc_softc *sc = (struct asc_softc *)arg; 349 350 if (!sc) 351 return; 352 353 if (sc->sc_ringing > 1000 || sc->sc_ringing < 0) 354 panic("bell got out of sync?"); 355 356 if (--sc->sc_ringing == 0) /* disable ASC */ 357 bus_space_write_1(sc->sc_tag, sc->sc_handle, 0x801, 0); 358 } 359 360 #if __notyet__ 361 static void 362 asc_intr_enable(void) 363 { 364 int s; 365 366 s = splhigh(); 367 if (VIA2 == VIA2OFF) 368 via2_reg(vIER) = 0x80 | V2IF_ASC; 369 else 370 via2_reg(rIER) = 0x80 | V2IF_ASC; 371 splx(s); 372 } 373 374 375 /*ARGSUSED*/ 376 static void 377 asc_intr(void *arg) 378 { 379 #ifdef ASC_DEBUG 380 struct asc_softc *sc = (struct asc_softc *)arg; 381 382 if (asc_debug) 383 printf("asc_intr(%p)\n", sc); 384 #endif 385 } 386 #endif 387
Indexes created Tue Sep 30 10:09:55 GMT 2025