audioamd.c revision 1.1
1 /* $NetBSD: audioamd.c,v 1.1 2000/05/02 06:35:14 augustss Exp $ */ 2 /* NetBSD: am7930_sparc.c,v 1.44 1999/03/14 22:29:00 jonathan Exp */ 3 4 /* 5 * Copyright (c) 1995 Rolf Grossmann 6 * All rights reserved. 7 * 8 * Redistribution and use in source and binary forms, with or without 9 * modification, are permitted provided that the following conditions 10 * are met: 11 * 1. Redistributions of source code must retain the above copyright 12 * notice, this list of conditions and the following disclaimer. 13 * 2. Redistributions in binary form must reproduce the above copyright 14 * notice, this list of conditions and the following disclaimer in the 15 * documentation and/or other materials provided with the distribution. 16 * 3. All advertising materials mentioning features or use of this software 17 * must display the following acknowledgement: 18 * This product includes software developed by Rolf Grossmann. 19 * 4. The name of the author may not be used to endorse or promote products 20 * derived from this software without specific prior written permission 21 * 22 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 23 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 24 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 25 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 26 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 27 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 28 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 29 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 30 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 31 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 32 */ 33 34 #include "audio.h" 35 #if NAUDIO > 0 36 37 #include <sys/param.h> 38 #include <sys/systm.h> 39 #include <sys/errno.h> 40 #include <sys/device.h> 41 42 #include <machine/bus.h> 43 #include <machine/autoconf.h> 44 #include <machine/cpu.h> 45 46 #include <sys/audioio.h> 47 #include <dev/audio_if.h> 48 49 #include <dev/ic/am7930reg.h> 50 #include <dev/ic/am7930var.h> 51 52 #define AUDIO_ROM_NAME "audio" 53 54 #ifdef AUDIO_DEBUG 55 #define DPRINTF(x) if (am7930debug) printf x 56 #define DPRINTFN(n,x) if (am7930debug>(n)) printf x 57 #else 58 #define DPRINTF(x) 59 #define DPRINTFN(n,x) 60 #endif /* AUDIO_DEBUG */ 61 62 63 /* interrupt interfaces */ 64 #ifdef AUDIO_C_HANDLER 65 int am7930hwintr __P((void *)); 66 #if defined(SUN4M) 67 #define AUDIO_SET_SWINTR do { \ 68 if (CPU_ISSUN4M) \ 69 raise(0, 4); \ 70 else \ 71 ienab_bis(IE_L4); \ 72 } while(0); 73 #else 74 #define AUDIO_SET_SWINTR ienab_bis(IE_L4) 75 #endif /* defined(SUN4M) */ 76 #else 77 struct auio *auiop; 78 #endif /* AUDIO_C_HANDLER */ 79 int am7930swintr __P((void *)); 80 81 /* 82 * pdma state 83 */ 84 struct auio { 85 bus_space_tag_t au_bt; /* bus tag */ 86 bus_space_handle_t au_bh; /* handle to chip registers */ 87 88 u_int8_t *au_rdata; /* record data */ 89 u_int8_t *au_rend; /* end of record data */ 90 u_int8_t *au_pdata; /* play data */ 91 u_int8_t *au_pend; /* end of play data */ 92 struct evcnt au_intrcnt; /* statistics */ 93 }; 94 95 /* 96 * interrupt-handler status 97 */ 98 struct am7930_intrhand { 99 int (*ih_fun) __P((void *)); 100 void *ih_arg; 101 }; 102 103 struct audioamd_softc { 104 struct am7930_softc sc_am7930; /* glue to MI code */ 105 106 bus_space_tag_t sc_bt; /* bus cookie */ 107 bus_space_handle_t sc_bh; /* device registers */ 108 109 struct am7930_intrhand sc_ih; /* interrupt vector (hw or sw) */ 110 void (*sc_rintr)(void*); /* input completion intr handler */ 111 void *sc_rarg; /* arg for sc_rintr() */ 112 void (*sc_pintr)(void*); /* output completion intr handler */ 113 void *sc_parg; /* arg for sc_pintr() */ 114 115 /* sc_au is special in that the hardware interrupt handler uses it */ 116 struct auio sc_au; /* recv and xmit buffers, etc */ 117 #define sc_intrcnt sc_au.au_intrcnt /* statistics */ 118 }; 119 120 void audioamd_mainbus_attach __P((struct device *, 121 struct device *, void *)); 122 int audioamd_mainbus_match __P((struct device *, struct cfdata *, void *)); 123 void audioamd_sbus_attach __P((struct device *, struct device *, void *)); 124 int audioamd_sbus_match __P((struct device *, struct cfdata *, void *)); 125 void audioamd_attach(struct audioamd_softc *sc, int); 126 127 struct cfattach audioamd_mainbus_ca = { 128 sizeof(struct audioamd_softc), 129 audioamd_mainbus_match, 130 audioamd_mainbus_attach 131 }; 132 133 struct cfattach audioamd_sbus_ca = { 134 sizeof(struct audioamd_softc), 135 audioamd_sbus_match, 136 audioamd_sbus_attach 137 }; 138 139 /* 140 * Define our interface into the am7930 MI driver. 141 */ 142 143 u_int8_t audioamd_codec_iread __P((struct am7930_softc *, int)); 144 u_int16_t audioamd_codec_iread16 __P((struct am7930_softc *, int)); 145 void audioamd_codec_iwrite __P((struct am7930_softc *, int, u_int8_t)); 146 void audioamd_codec_iwrite16 __P((struct am7930_softc *, int, u_int16_t)); 147 void audioamd_onopen __P((struct am7930_softc *sc)); 148 void audioamd_onclose __P((struct am7930_softc *sc)); 149 150 struct am7930_glue audioamd_glue = { 151 audioamd_codec_iread, 152 audioamd_codec_iwrite, 153 audioamd_codec_iread16, 154 audioamd_codec_iwrite16, 155 audioamd_onopen, 156 audioamd_onclose, 157 0, 158 0, 159 0, 160 }; 161 162 /* 163 * Define our interface to the higher level audio driver. 164 */ 165 int audioamd_start_output __P((void *, void *, int, void (*)(void *), 166 void *)); 167 int audioamd_start_input __P((void *, void *, int, void (*)(void *), 168 void *)); 169 170 struct audio_hw_if sa_hw_if = { 171 am7930_open, 172 am7930_close, 173 0, 174 am7930_query_encoding, 175 am7930_set_params, 176 am7930_round_blocksize, 177 am7930_commit_settings, 178 0, 179 0, 180 audioamd_start_output, /* md */ 181 audioamd_start_input, /* md */ 182 am7930_halt_output, 183 am7930_halt_input, 184 0, 185 audioamd_getdev, 186 0, 187 am7930_set_port, 188 am7930_get_port, 189 am7930_query_devinfo, 190 0, 191 0, 192 0, 193 0, 194 am7930_get_props, 195 }; 196 197 struct audio_device audioamd_device = { 198 "am7930", 199 "x", 200 "audioamd" 201 }; 202 203 204 int 205 audioamd_mainbus_match(parent, cf, aux) 206 struct device *parent; 207 struct cfdata *cf; 208 void *aux; 209 { 210 struct mainbus_attach_args *ma = aux; 211 212 if (CPU_ISSUN4) 213 return (0); 214 return (strcmp(AUDIO_ROM_NAME, ma->ma_name) == 0); 215 } 216 217 int 218 audioamd_sbus_match(parent, cf, aux) 219 struct device *parent; 220 struct cfdata *cf; 221 void *aux; 222 { 223 struct sbus_attach_args *sa = aux; 224 225 return (strcmp(AUDIO_ROM_NAME, sa->sa_name) == 0); 226 } 227 228 void 229 audioamd_mainbus_attach(parent, self, aux) 230 struct device *parent, *self; 231 void *aux; 232 { 233 struct mainbus_attach_args *ma = aux; 234 struct audioamd_softc *sc = (struct audioamd_softc *)self; 235 bus_space_handle_t bh; 236 237 sc->sc_bt = ma->ma_bustag; 238 239 if (bus_space_map2( 240 ma->ma_bustag, 241 ma->ma_iospace, 242 ma->ma_paddr, 243 sizeof(struct am7930), 244 BUS_SPACE_MAP_LINEAR, 245 0, 246 &bh) != 0) { 247 printf("%s: cannot map registers\n", self->dv_xname); 248 return; 249 } 250 sc->sc_bh = bh; 251 audioamd_attach(sc, ma->ma_pri); 252 } 253 254 255 void 256 audioamd_sbus_attach(parent, self, aux) 257 struct device *parent, *self; 258 void *aux; 259 { 260 struct sbus_attach_args *sa = aux; 261 struct audioamd_softc *sc = (struct audioamd_softc *)self; 262 bus_space_handle_t bh; 263 264 sc->sc_bt = sa->sa_bustag; 265 266 if (sbus_bus_map( 267 sa->sa_bustag, 268 sa->sa_slot, 269 sa->sa_offset, 270 sizeof(struct am7930), 271 0, 0, 272 &bh) != 0) { 273 printf("%s: cannot map registers\n", self->dv_xname); 274 return; 275 } 276 sc->sc_bh = bh; 277 audioamd_attach(sc, sa->sa_pri); 278 } 279 280 void 281 audioamd_attach(sc, pri) 282 struct audioamd_softc *sc; 283 int pri; 284 { 285 286 printf(" softpri %d\n", PIL_AUSOFT); 287 288 /* 289 * Set up glue for MI code early; we use some of it here. 290 */ 291 sc->sc_glue = &audioamd_glue; 292 293 am7930_init(sc, AUDIOAMD_POLL_MODE); 294 295 #ifndef AUDIO_C_HANDLER 296 auiop = &sc->sc_au; 297 (void)bus_intr_establish(sc->sc_bt, pri, 298 BUS_INTR_ESTABLISH_FASTTRAP, 299 (int (*) __P((void *)))amd7930_trap, NULL); 300 #else 301 (void)bus_intr_establish(sc->sc_bt, pri, 0, 302 am7930hwintr, &sc->sc_au); 303 #endif 304 (void)bus_intr_establish(sc->sc_bt, PIL_AUSOFT, 305 BUS_INTR_ESTABLISH_SOFTINTR, 306 am7930swintr, sc); 307 308 evcnt_attach(&sc->sc_dev, "intr", &sc->sc_intrcnt); 309 310 audio_attach_mi(&sa_hw_if, sc, &sc->sc_dev); 311 } 312 313 314 void 315 audioamd_onopen(sc) 316 struct am7930_softc *sc; 317 { 318 struct audioamd_softc *mdsc = (struct audioamd *)sc; 319 320 /* reset pdma state */ 321 mdsc->sc_rintr = 0; 322 mdsc->sc_rarg = 0; 323 mdsc->sc_pintr = 0; 324 mdsc->sc_parg = 0; 325 326 mdsc->sc_au.au_rdata = 0; 327 mdsc->sc_au.au_pdata = 0; 328 } 329 330 331 void 332 audioamd_onclose(sc) 333 struct am7930_softc *sc; 334 { 335 /* On sparc, just do the chipset-level halt. */ 336 am7930_halt_input(sc); 337 am7930_halt_output(sc); 338 } 339 340 int 341 audioamd_output(addr, p, cc, intr, arg) 342 void *addr; 343 void *p; 344 int cc; 345 void (*intr) __P((void *)); 346 void *arg; 347 { 348 struct audioamd_softc *sc = addr; 349 350 DPRINTFN(1, ("sa_start_output: cc=%d %p (%p)\n", cc, intr, arg)); 351 352 if (!sc->sc_locked) { 353 audioamd_codec_iwrite(sc, 354 AM7930_IREG_INIT, AM7930_INIT_PMS_ACTIVE); 355 sc->sc_locked = 1; 356 DPRINTF(("sa_start_output: started intrs.\n")); 357 } 358 sc->sc_pintr = intr; 359 sc->sc_parg = arg; 360 sc->sc_au.au_pdata = p; 361 sc->sc_au.au_pend = (char *)p + cc - 1; 362 return(0); 363 } 364 365 int 366 am7930_start_input(addr, p, cc, intr, arg) 367 void *addr; 368 void *p; 369 int cc; 370 void (*intr) __P((void *)); 371 void *arg; 372 { 373 struct audioamd_softc *sc = addr; 374 375 DPRINTFN(1, ("sa_start_input: cc=%d %p (%p)\n", cc, intr, arg)); 376 377 if (!sc->sc_locked) { 378 audioamd_codec_iwrite(sc, 379 AM7930_IREG_INIT, AM7930_INIT_PMS_ACTIVE); 380 sc->sc_locked = 1; 381 DPRINTF(("sa_start_input: started intrs.\n")); 382 } 383 sc->sc_rintr = intr; 384 sc->sc_rarg = arg; 385 sc->sc_au.au_rdata = p; 386 sc->sc_au.au_rend = (char *)p + cc -1; 387 return(0); 388 } 389 390 391 /* 392 * Pseudo-DMA support: either C or locore assember. 393 */ 394 395 #ifdef AUDIO_C_HANDLER 396 int 397 am7930hwintr(au0) 398 void *au0; 399 { 400 struct auio *au = au0; 401 u_int8_t *d, *e; 402 int k; 403 404 /* XXX where is sc? */ 405 406 /* clear interrupt */ 407 k = audioamd_codec_dread(sc, AM7930_DREG_IR); 408 409 /* receive incoming data */ 410 d = au->au_rdata; 411 e = au->au_rend; 412 if (d && d <= e) { 413 *d = audioamd_codec_dread(sc, AM7930_DREG_BBRB); 414 au->au_rdata++; 415 if (d == e) { 416 DPRINTFN(1, ("am7930hwintr: swintr(r) requested")); 417 AUDIO_SET_SWINTR; 418 } 419 } 420 421 /* send outgoing data */ 422 d = au->au_pdata; 423 e = au->au_pend; 424 if (d && d <= e) { 425 audioamd_codec_dwrite(sc, AM7930_DREG_BBTB, *d); 426 au->au_pdata++; 427 if (d == e) { 428 DPRINTFN(1, ("am7930hwintr: swintr(p) requested")); 429 AUDIO_SET_SWINTR; 430 } 431 } 432 433 *(au->au_intrcnt)++; 434 return (1); 435 } 436 #endif /* AUDIO_C_HANDLER */ 437 438 int 439 am7930swintr(sc0) 440 void *sc0; 441 { 442 struct audioamd_softc *sc = sc0; 443 struct auio *au; 444 int s, ret = 0; 445 446 DPRINTFN(1, ("audiointr: sc=%p\n", sc);); 447 448 au = &sc->sc_au; 449 s = splaudio(); 450 if (au->au_rdata > au->au_rend && sc->sc_rintr != NULL) { 451 splx(s); 452 ret = 1; 453 (*sc->sc_rintr)(sc->sc_rarg); 454 s = splaudio(); 455 } 456 if (au->au_pdata > au->au_pend && sc->sc_pintr != NULL) { 457 splx(s); 458 ret = 1; 459 (*sc->sc_pintr)(sc->sc_parg); 460 } else 461 splx(s); 462 return (ret); 463 } 464 465 466 /* indirect write */ 467 void 468 audioamd_codec_iwrite(sc, reg, val) 469 struct am7930_softc *sc; 470 int reg; 471 u_int8_t val; 472 { 473 audioamd_codec_dwrite(sc, AM7930_DREG_CR, reg); 474 audioamd_codec_dwrite(sc, AM7930_DREG_DR, val); 475 } 476 477 478 void 479 audioamd_codec_iwrite16(sc, reg, val) 480 struct am7930_softc *sc; 481 int reg; 482 u_int16_t val; 483 { 484 audioamd_codec_dwrite(sc, AM7930_DREG_CR, reg); 485 audioamd_codec_dwrite(sc, AM7930_DREG_DR, val); 486 audioamd_codec_dwrite(sc, AM7930_DREG_DR, val>>8); 487 } 488 489 490 /* indirect read */ 491 u_int8_t 492 audioamd_codec_iread(sc, reg) 493 struct am7930_softc *sc; 494 int reg; 495 { 496 audioamd_codec_dwrite(sc, AM7930_DREG_CR, reg); 497 return audioamd_codec_dread(sc, AM7930_DREG_DR); 498 } 499 500 /* direct write */ 501 void 502 audioamd_codec_dwrite(sc, reg, val) 503 struct am7930_softc *sc; 504 int reg; 505 u_int8_t val; 506 { 507 struct audioamd_softc *mdsc = (struct audioamd_softc *)sc; 508 bus_space_write_1(mdsc->sc_bt, mdsc->sc_bh, reg, val); 509 } 510 511 /* direct read */ 512 u_int8_t 513 bba_codec_dread(sc, reg) 514 struct am7930_softc *sc; 515 int reg; 516 { 517 struct audioamd_softc *mdsc = (struct audioamd_softc *)sc; 518 return bus_space_read_1(mdsc->sc_bt, mdsc->sc_bh, reg); 519 } 520 521 #endif /* NAUDIO > 0 */ 522
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