1 /*- 2 * SPDX-License-Identifier: BSD-2-Clause 3 * 4 * Copyright 2008 by Marco Trillo. All rights reserved. 5 * 6 * Redistribution and use in source and binary forms, with or without 7 * modification, are permitted provided that the following conditions 8 * are met: 9 * 1. Redistributions of source code must retain the above copyright 10 * notice, this list of conditions and the following disclaimer. 11 * 2. Redistributions in binary form must reproduce the above copyright 12 * notice, this list of conditions and the following disclaimer in the 13 * documentation and/or other materials provided with the distribution. 14 * 15 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 16 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 17 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 18 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 19 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, 20 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; 21 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED 22 * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, 23 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 24 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 25 * SUCH DAMAGE. 26 */ 27 28 /* 29 * Apple DAVbus audio controller. 30 */ 31 32 #include <sys/param.h> 33 #include <sys/systm.h> 34 #include <sys/bus.h> 35 #include <sys/kernel.h> 36 #include <sys/lock.h> 37 #include <sys/malloc.h> 38 #include <sys/module.h> 39 #include <sys/mutex.h> 40 #include <sys/rman.h> 41 42 #include <dev/ofw/ofw_bus.h> 43 44 #ifdef HAVE_KERNEL_OPTION_HEADERS 45 #include "opt_snd.h" 46 #endif 47 48 #include <dev/sound/pcm/sound.h> 49 50 #include <dev/sound/macio/aoa.h> 51 #include <dev/sound/macio/davbusreg.h> 52 53 #include <machine/intr_machdep.h> 54 #include <machine/resource.h> 55 #include <machine/bus.h> 56 57 #include "mixer_if.h" 58 59 struct davbus_softc { 60 struct aoa_softc aoa; 61 phandle_t node; 62 phandle_t soundnode; 63 struct resource *reg; 64 struct mtx mutex; 65 int device_id; 66 unsigned int output_mask; 67 unsigned int (*read_status)(struct davbus_softc *, unsigned int); 68 void (*set_outputs)(struct davbus_softc *, unsigned int); 69 }; 70 71 static int davbus_probe(device_t); 72 static int davbus_attach(device_t); 73 static void davbus_cint(void *); 74 75 static device_method_t pcm_davbus_methods[] = { 76 /* Device interface. */ 77 DEVMETHOD(device_probe, davbus_probe), 78 DEVMETHOD(device_attach, davbus_attach), 79 DEVMETHOD_END 80 }; 81 82 static driver_t pcm_davbus_driver = { 83 "pcm", 84 pcm_davbus_methods, 85 PCM_SOFTC_SIZE 86 }; 87 88 DRIVER_MODULE(pcm_davbus, macio, pcm_davbus_driver, 0, 0); 89 MODULE_DEPEND(pcm_davbus, sound, 1, 1, 1); 90 91 /***************************************************************************** 92 Probe and attachment routines. 93 *****************************************************************************/ 94 static int 95 davbus_probe(device_t self) 96 { 97 const char *name; 98 99 name = ofw_bus_get_name(self); 100 if (!name) 101 return (ENXIO); 102 103 if (strcmp(name, "davbus") != 0) 104 return (ENXIO); 105 106 device_set_desc(self, "Apple DAVBus Audio Controller"); 107 108 return (0); 109 } 110 111 /* 112 * Burgundy codec control 113 */ 114 115 static int burgundy_init(struct snd_mixer *m); 116 static int burgundy_uninit(struct snd_mixer *m); 117 static int burgundy_reinit(struct snd_mixer *m); 118 static void burgundy_write_locked(struct davbus_softc *, unsigned int, unsigned int); 119 static void burgundy_set_outputs(struct davbus_softc *d, unsigned int mask); 120 static unsigned int burgundy_read_status(struct davbus_softc *d, unsigned int status); 121 static int burgundy_set(struct snd_mixer *m, unsigned dev, unsigned left, 122 unsigned right); 123 static uint32_t burgundy_setrecsrc(struct snd_mixer *m, uint32_t src); 124 125 static kobj_method_t burgundy_mixer_methods[] = { 126 KOBJMETHOD(mixer_init, burgundy_init), 127 KOBJMETHOD(mixer_uninit, burgundy_uninit), 128 KOBJMETHOD(mixer_reinit, burgundy_reinit), 129 KOBJMETHOD(mixer_set, burgundy_set), 130 KOBJMETHOD(mixer_setrecsrc, burgundy_setrecsrc), 131 KOBJMETHOD_END 132 }; 133 134 MIXER_DECLARE(burgundy_mixer); 135 136 static int 137 burgundy_init(struct snd_mixer *m) 138 { 139 struct davbus_softc *d; 140 141 d = mix_getdevinfo(m); 142 143 d->read_status = burgundy_read_status; 144 d->set_outputs = burgundy_set_outputs; 145 146 /* 147 * We configure the Burgundy codec as follows: 148 * 149 * o Input subframe 0 is connected to input digital 150 * stream A (ISA). 151 * o Stream A (ISA) is mixed in mixer 2 (MIX2). 152 * o Output of mixer 2 (MIX2) is routed to output sources 153 * OS0 and OS1 which can be converted to analog. 154 * 155 */ 156 mtx_lock(&d->mutex); 157 158 burgundy_write_locked(d, 0x16700, 0x40); 159 160 burgundy_write_locked(d, BURGUNDY_MIX0_REG, 0); 161 burgundy_write_locked(d, BURGUNDY_MIX1_REG, 0); 162 burgundy_write_locked(d, BURGUNDY_MIX2_REG, BURGUNDY_MIX_ISA); 163 burgundy_write_locked(d, BURGUNDY_MIX3_REG, 0); 164 165 burgundy_write_locked(d, BURGUNDY_OS_REG, BURGUNDY_OS0_MIX2 | 166 BURGUNDY_OS1_MIX2); 167 168 burgundy_write_locked(d, BURGUNDY_SDIN_REG, BURGUNDY_ISA_SF0); 169 170 /* Set several digital scalers to unity gain. */ 171 burgundy_write_locked(d, BURGUNDY_MXS2L_REG, BURGUNDY_MXS_UNITY); 172 burgundy_write_locked(d, BURGUNDY_MXS2R_REG, BURGUNDY_MXS_UNITY); 173 burgundy_write_locked(d, BURGUNDY_OSS0L_REG, BURGUNDY_OSS_UNITY); 174 burgundy_write_locked(d, BURGUNDY_OSS0R_REG, BURGUNDY_OSS_UNITY); 175 burgundy_write_locked(d, BURGUNDY_OSS1L_REG, BURGUNDY_OSS_UNITY); 176 burgundy_write_locked(d, BURGUNDY_OSS1R_REG, BURGUNDY_OSS_UNITY); 177 burgundy_write_locked(d, BURGUNDY_ISSAL_REG, BURGUNDY_ISS_UNITY); 178 burgundy_write_locked(d, BURGUNDY_ISSAR_REG, BURGUNDY_ISS_UNITY); 179 180 burgundy_set_outputs(d, burgundy_read_status(d, 181 bus_read_4(d->reg, DAVBUS_CODEC_STATUS))); 182 183 mtx_unlock(&d->mutex); 184 185 mix_setdevs(m, SOUND_MASK_VOLUME); 186 187 return (0); 188 } 189 190 static int 191 burgundy_uninit(struct snd_mixer *m) 192 { 193 return (0); 194 } 195 196 static int 197 burgundy_reinit(struct snd_mixer *m) 198 { 199 return (0); 200 } 201 202 static void 203 burgundy_write_locked(struct davbus_softc *d, unsigned int reg, unsigned int val) 204 { 205 unsigned int size, addr, offset, data, i; 206 207 size = (reg & 0x00FF0000) >> 16; 208 addr = (reg & 0x0000FF00) >> 8; 209 offset = reg & 0xFF; 210 211 for (i = offset; i < offset + size; ++i) { 212 data = BURGUNDY_CTRL_WRITE | (addr << 12) | 213 ((size + offset - 1) << 10) | (i << 8) | (val & 0xFF); 214 if (i == offset) 215 data |= BURGUNDY_CTRL_RESET; 216 217 bus_write_4(d->reg, DAVBUS_CODEC_CTRL, data); 218 219 while (bus_read_4(d->reg, DAVBUS_CODEC_CTRL) & 220 DAVBUS_CODEC_BUSY) 221 DELAY(1); 222 223 val >>= 8; /* next byte. */ 224 } 225 } 226 227 /* Must be called with d->mutex held. */ 228 static void 229 burgundy_set_outputs(struct davbus_softc *d, unsigned int mask) 230 { 231 unsigned int x = 0; 232 233 if (mask == d->output_mask) 234 return; 235 236 /* 237 * Bordeaux card wirings: 238 * Port 15: RCA out 239 * Port 16: Minijack out 240 * Port 17: Internal speaker 241 * 242 * B&W G3 wirings: 243 * Port 14: Minijack out 244 * Port 17: Internal speaker 245 */ 246 247 DPRINTF(("Enabled outputs:")); 248 if (mask & (1 << 0)) { 249 DPRINTF((" SPEAKER")); 250 x |= BURGUNDY_P17M_EN; 251 } 252 if (mask & (1 << 1)) { 253 DPRINTF((" HEADPHONES")); 254 x |= BURGUNDY_P14L_EN | BURGUNDY_P14R_EN; 255 } 256 DPRINTF(("\n")); 257 258 burgundy_write_locked(d, BURGUNDY_MUTE_REG, x); 259 d->output_mask = mask; 260 } 261 262 static unsigned int 263 burgundy_read_status(struct davbus_softc *d, unsigned int status) 264 { 265 if (status & 0x4) 266 return (1 << 1); 267 else 268 return (1 << 0); 269 } 270 271 static int 272 burgundy_set(struct snd_mixer *m, unsigned dev, unsigned left, unsigned right) 273 { 274 struct davbus_softc *d; 275 int lval, rval; 276 277 lval = ((100 - left) * 15 / 100) & 0xf; 278 rval = ((100 - right) * 15 / 100) & 0xf; 279 DPRINTF(("volume %d %d\n", lval, rval)); 280 281 d = mix_getdevinfo(m); 282 283 switch (dev) { 284 case SOUND_MIXER_VOLUME: 285 mtx_lock(&d->mutex); 286 287 burgundy_write_locked(d, BURGUNDY_OL13_REG, lval); 288 burgundy_write_locked(d, BURGUNDY_OL14_REG, (rval << 4) | lval); 289 burgundy_write_locked(d, BURGUNDY_OL15_REG, (rval << 4) | lval); 290 burgundy_write_locked(d, BURGUNDY_OL16_REG, (rval << 4) | lval); 291 burgundy_write_locked(d, BURGUNDY_OL17_REG, lval); 292 293 mtx_unlock(&d->mutex); 294 295 return (left | (right << 8)); 296 } 297 298 return (0); 299 } 300 301 static uint32_t 302 burgundy_setrecsrc(struct snd_mixer *m, uint32_t src) 303 { 304 return (0); 305 } 306 307 /* 308 * Screamer Codec Control 309 */ 310 311 static int screamer_init(struct snd_mixer *m); 312 static int screamer_uninit(struct snd_mixer *m); 313 static int screamer_reinit(struct snd_mixer *m); 314 static void screamer_write_locked(struct davbus_softc *, unsigned int, unsigned int); 315 static void screamer_set_outputs(struct davbus_softc *d, unsigned int mask); 316 static unsigned int screamer_read_status(struct davbus_softc *d, unsigned int status); 317 static int screamer_set(struct snd_mixer *m, unsigned dev, unsigned left, 318 unsigned right); 319 static uint32_t screamer_setrecsrc(struct snd_mixer *m, uint32_t src); 320 321 static kobj_method_t screamer_mixer_methods[] = { 322 KOBJMETHOD(mixer_init, screamer_init), 323 KOBJMETHOD(mixer_uninit, screamer_uninit), 324 KOBJMETHOD(mixer_reinit, screamer_reinit), 325 KOBJMETHOD(mixer_set, screamer_set), 326 KOBJMETHOD(mixer_setrecsrc, screamer_setrecsrc), 327 KOBJMETHOD_END 328 }; 329 330 MIXER_DECLARE(screamer_mixer); 331 332 static int 333 screamer_init(struct snd_mixer *m) 334 { 335 struct davbus_softc *d; 336 337 d = mix_getdevinfo(m); 338 339 d->read_status = screamer_read_status; 340 d->set_outputs = screamer_set_outputs; 341 342 mtx_lock(&d->mutex); 343 344 screamer_write_locked(d, SCREAMER_CODEC_ADDR0, SCREAMER_INPUT_CD | 345 SCREAMER_DEFAULT_CD_GAIN); 346 347 screamer_set_outputs(d, screamer_read_status(d, 348 bus_read_4(d->reg, DAVBUS_CODEC_STATUS))); 349 350 screamer_write_locked(d, SCREAMER_CODEC_ADDR2, 0); 351 screamer_write_locked(d, SCREAMER_CODEC_ADDR4, 0); 352 screamer_write_locked(d, SCREAMER_CODEC_ADDR5, 0); 353 screamer_write_locked(d, SCREAMER_CODEC_ADDR6, 0); 354 355 mtx_unlock(&d->mutex); 356 357 mix_setdevs(m, SOUND_MASK_VOLUME); 358 359 return (0); 360 } 361 362 static int 363 screamer_uninit(struct snd_mixer *m) 364 { 365 return (0); 366 } 367 368 static int 369 screamer_reinit(struct snd_mixer *m) 370 { 371 return (0); 372 } 373 374 static void 375 screamer_write_locked(struct davbus_softc *d, unsigned int reg, unsigned int val) 376 { 377 unsigned int x; 378 379 KASSERT(val == (val & 0xfff), ("bad val")); 380 381 while (bus_read_4(d->reg, DAVBUS_CODEC_CTRL) & DAVBUS_CODEC_BUSY) 382 DELAY(100); 383 384 x = reg; 385 x |= SCREAMER_CODEC_EMSEL0; 386 x |= val; 387 bus_write_4(d->reg, DAVBUS_CODEC_CTRL, x); 388 389 while (bus_read_4(d->reg, DAVBUS_CODEC_CTRL) & DAVBUS_CODEC_BUSY) 390 DELAY(100); 391 } 392 393 /* Must be called with d->mutex held. */ 394 static void 395 screamer_set_outputs(struct davbus_softc *d, unsigned int mask) 396 { 397 unsigned int x; 398 399 if (mask == d->output_mask) { 400 return; 401 } 402 403 x = SCREAMER_MUTE_SPEAKER | SCREAMER_MUTE_HEADPHONES; 404 405 DPRINTF(("Enabled outputs: ")); 406 407 if (mask & (1 << 0)) { 408 DPRINTF(("SPEAKER ")); 409 x &= ~SCREAMER_MUTE_SPEAKER; 410 } 411 if (mask & (1 << 1)) { 412 DPRINTF(("HEADPHONES ")); 413 x &= ~SCREAMER_MUTE_HEADPHONES; 414 } 415 416 DPRINTF(("\n")); 417 418 if (d->device_id == 5 || d->device_id == 11) { 419 DPRINTF(("Enabling programmable output.\n")); 420 x |= SCREAMER_PROG_OUTPUT0; 421 } 422 if (d->device_id == 8 || d->device_id == 11) { 423 x &= ~SCREAMER_MUTE_SPEAKER; 424 425 if (mask & (1 << 0)) 426 x |= SCREAMER_PROG_OUTPUT1; /* enable speaker. */ 427 } 428 429 screamer_write_locked(d, SCREAMER_CODEC_ADDR1, x); 430 d->output_mask = mask; 431 } 432 433 static unsigned int 434 screamer_read_status(struct davbus_softc *d, unsigned int status) 435 { 436 int headphones; 437 438 switch (d->device_id) { 439 case 5: /* Sawtooth */ 440 headphones = (status & 0x4); 441 break; 442 443 case 8: 444 case 11: /* iMac DV */ 445 /* The iMac DV has 2 headphone outputs. */ 446 headphones = (status & 0x7); 447 break; 448 449 default: 450 headphones = (status & 0x8); 451 } 452 453 if (headphones) 454 return (1 << 1); 455 else 456 return (1 << 0); 457 } 458 459 static int 460 screamer_set(struct snd_mixer *m, unsigned dev, unsigned left, unsigned right) 461 { 462 struct davbus_softc *d; 463 int lval, rval; 464 465 lval = ((100 - left) * 15 / 100) & 0xf; 466 rval = ((100 - right) * 15 / 100) & 0xf; 467 DPRINTF(("volume %d %d\n", lval, rval)); 468 469 d = mix_getdevinfo(m); 470 471 switch (dev) { 472 case SOUND_MIXER_VOLUME: 473 mtx_lock(&d->mutex); 474 screamer_write_locked(d, SCREAMER_CODEC_ADDR2, (lval << 6) | 475 rval); 476 screamer_write_locked(d, SCREAMER_CODEC_ADDR4, (lval << 6) | 477 rval); 478 mtx_unlock(&d->mutex); 479 480 return (left | (right << 8)); 481 } 482 483 return (0); 484 } 485 486 static uint32_t 487 screamer_setrecsrc(struct snd_mixer *m, uint32_t src) 488 { 489 return (0); 490 } 491 492 static int 493 davbus_attach(device_t self) 494 { 495 struct davbus_softc *sc; 496 struct resource *dbdma_irq, *cintr; 497 void *cookie; 498 kobj_class_t mixer_class; 499 char compat[64]; 500 int rid, oirq, err; 501 502 sc = malloc(sizeof(*sc), M_DEVBUF, M_WAITOK | M_ZERO); 503 504 sc->aoa.sc_dev = self; 505 sc->node = ofw_bus_get_node(self); 506 sc->soundnode = OF_child(sc->node); 507 508 /* Map the controller register space. */ 509 rid = 0; 510 sc->reg = bus_alloc_resource_any(self, SYS_RES_MEMORY, &rid, RF_ACTIVE); 511 if (sc->reg == NULL) 512 return (ENXIO); 513 514 /* Map the DBDMA channel register space. */ 515 rid = 1; 516 sc->aoa.sc_odma = bus_alloc_resource_any(self, SYS_RES_MEMORY, 517 &rid, RF_ACTIVE); 518 if (sc->aoa.sc_odma == NULL) 519 return (ENXIO); 520 521 /* Establish the DBDMA channel edge-triggered interrupt. */ 522 rid = 1; 523 dbdma_irq = bus_alloc_resource_any(self, SYS_RES_IRQ, 524 &rid, RF_SHAREABLE | RF_ACTIVE); 525 if (dbdma_irq == NULL) 526 return (ENXIO); 527 528 oirq = rman_get_start(dbdma_irq); 529 530 DPRINTF(("interrupting at irq %d\n", oirq)); 531 532 err = powerpc_config_intr(oirq, INTR_TRIGGER_EDGE, INTR_POLARITY_LOW); 533 if (err != 0) 534 return (err); 535 536 snd_setup_intr(self, dbdma_irq, INTR_MPSAFE, aoa_interrupt, 537 sc, &cookie); 538 539 /* Now initialize the controller. */ 540 541 bzero(compat, sizeof(compat)); 542 OF_getprop(sc->soundnode, "compatible", compat, sizeof(compat)); 543 OF_getprop(sc->soundnode, "device-id", &sc->device_id, sizeof(unsigned int)); 544 545 mtx_init(&sc->mutex, "DAVbus", NULL, MTX_DEF); 546 547 device_printf(self, "codec: <%s>\n", compat); 548 549 /* Setup the control interrupt. */ 550 rid = 0; 551 cintr = bus_alloc_resource_any(self, SYS_RES_IRQ, 552 &rid, RF_SHAREABLE | RF_ACTIVE); 553 if (cintr != NULL) 554 bus_setup_intr(self, cintr, INTR_TYPE_MISC | INTR_MPSAFE, 555 NULL, davbus_cint, sc, &cookie); 556 557 /* Initialize controller registers. */ 558 bus_write_4(sc->reg, DAVBUS_SOUND_CTRL, DAVBUS_INPUT_SUBFRAME0 | 559 DAVBUS_OUTPUT_SUBFRAME0 | DAVBUS_RATE_44100 | DAVBUS_INTR_PORTCHG); 560 561 /* Pick the codec module */ 562 if (strcmp(compat, "screamer") == 0) 563 mixer_class = &screamer_mixer_class; 564 else if (strcmp(compat, "burgundy") == 0) 565 mixer_class = &burgundy_mixer_class; 566 else 567 mixer_class = NULL; 568 569 /* Attach DBDMA engine, codec mixer and PCM layer */ 570 err = aoa_attach(sc, mixer_class, sc); 571 if (err) 572 return (err); 573 574 return (0); 575 } 576 577 static void 578 davbus_cint(void *ptr) 579 { 580 struct davbus_softc *d = ptr; 581 unsigned int reg, status, mask; 582 583 mtx_lock(&d->mutex); 584 585 reg = bus_read_4(d->reg, DAVBUS_SOUND_CTRL); 586 if (reg & DAVBUS_PORTCHG) { 587 588 status = bus_read_4(d->reg, DAVBUS_CODEC_STATUS); 589 590 if (d->read_status && d->set_outputs) { 591 mask = (*d->read_status)(d, status); 592 (*d->set_outputs)(d, mask); 593 } 594 595 /* Clear the interrupt. */ 596 bus_write_4(d->reg, DAVBUS_SOUND_CTRL, reg); 597 } 598 599 mtx_unlock(&d->mutex); 600 } 601