Now available: The Design and Implementation of the FreeBSD Operating System (Second Edition)
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sys/dev/sound/macio/i2s.c
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1 /*- 2 * Copyright 2008 by Marco Trillo. All rights reserved. 3 * 4 * Redistribution and use in source and binary forms, with or without 5 * modification, are permitted provided that the following conditions 6 * are met: 7 * 1. Redistributions of source code must retain the above copyright 8 * notice, this list of conditions and the following disclaimer. 9 * 2. Redistributions in binary form must reproduce the above copyright 10 * notice, this list of conditions and the following disclaimer in the 11 * documentation and/or other materials provided with the distribution. 12 * 13 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 14 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 15 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 16 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 17 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, 18 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; 19 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED 20 * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, 21 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 22 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 23 * SUCH DAMAGE. 24 * 25 * $FreeBSD$ 26 */ 27 /*- 28 * Copyright (c) 2002, 2003 Tsubai Masanari. All rights reserved. 29 * 30 * Redistribution and use in source and binary forms, with or without 31 * modification, are permitted provided that the following conditions 32 * are met: 33 * 1. Redistributions of source code must retain the above copyright 34 * notice, this list of conditions and the following disclaimer. 35 * 2. Redistributions in binary form must reproduce the above copyright 36 * notice, this list of conditions and the following disclaimer in the 37 * documentation and/or other materials provided with the distribution. 38 * 3. The name of the author may not be used to endorse or promote products 39 * derived from this software without specific prior written permission. 40 * 41 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 42 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 43 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 44 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 45 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 46 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 47 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 48 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 49 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 50 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 51 * 52 * NetBSD: snapper.c,v 1.28 2008/05/16 03:49:54 macallan Exp 53 * Id: snapper.c,v 1.11 2002/10/31 17:42:13 tsubai Exp 54 */ 55 56 /* 57 * Apple I2S audio controller. 58 */ 59 60 #include <sys/param.h> 61 #include <sys/systm.h> 62 #include <sys/kernel.h> 63 #include <sys/module.h> 64 #include <sys/bus.h> 65 #include <sys/malloc.h> 66 #include <sys/lock.h> 67 #include <sys/mutex.h> 68 #include <machine/dbdma.h> 69 #include <machine/intr_machdep.h> 70 #include <machine/resource.h> 71 #include <machine/bus.h> 72 #include <machine/pio.h> 73 #include <sys/rman.h> 74 #include <dev/ofw/ofw_bus.h> 75 76 #ifdef HAVE_KERNEL_OPTION_HEADERS 77 #include "opt_snd.h" 78 #endif 79 80 #include <dev/sound/pcm/sound.h> 81 #include <dev/sound/macio/aoa.h> 82 83 #include <powerpc/powermac/macgpiovar.h> 84 85 struct i2s_softc { 86 struct aoa_softc aoa; 87 phandle_t node; 88 phandle_t soundnode; 89 struct resource *reg; 90 u_int output_mask; 91 struct mtx port_mtx; 92 }; 93 94 static int i2s_probe(device_t); 95 static int i2s_attach(device_t); 96 static void i2s_postattach(void *); 97 static int i2s_setup(struct i2s_softc *, u_int, u_int, u_int); 98 static void i2s_mute_headphone (struct i2s_softc *, int); 99 static void i2s_mute_lineout (struct i2s_softc *, int); 100 static void i2s_mute_speaker (struct i2s_softc *, int); 101 static void i2s_set_outputs(void *, u_int); 102 103 static struct intr_config_hook *i2s_delayed_attach = NULL; 104 105 kobj_class_t i2s_mixer_class = NULL; 106 device_t i2s_mixer = NULL; 107 108 static device_method_t pcm_i2s_methods[] = { 109 /* Device interface. */ 110 DEVMETHOD(device_probe, i2s_probe), 111 DEVMETHOD(device_attach, i2s_attach), 112 113 { 0, 0 } 114 }; 115 116 static driver_t pcm_i2s_driver = { 117 "pcm", 118 pcm_i2s_methods, 119 PCM_SOFTC_SIZE 120 }; 121 122 DRIVER_MODULE(pcm_i2s, macio, pcm_i2s_driver, pcm_devclass, 0, 0); 123 MODULE_DEPEND(pcm_i2s, sound, SOUND_MINVER, SOUND_PREFVER, SOUND_MAXVER); 124 125 static int aoagpio_probe(device_t); 126 static int aoagpio_attach(device_t); 127 128 static device_method_t aoagpio_methods[] = { 129 /* Device interface. */ 130 DEVMETHOD(device_probe, aoagpio_probe), 131 DEVMETHOD(device_attach, aoagpio_attach), 132 133 { 0, 0 } 134 }; 135 136 struct aoagpio_softc { 137 device_t dev; 138 int ctrl; 139 int detect_active; /* for extint-gpio */ 140 int level; /* for extint-gpio */ 141 struct i2s_softc *i2s; /* for extint-gpio */ 142 }; 143 144 static driver_t aoagpio_driver = { 145 "aoagpio", 146 aoagpio_methods, 147 sizeof(struct aoagpio_softc) 148 }; 149 static devclass_t aoagpio_devclass; 150 151 DRIVER_MODULE(aoagpio, macgpio, aoagpio_driver, aoagpio_devclass, 0, 0); 152 153 154 /***************************************************************************** 155 Probe and attachment routines. 156 *****************************************************************************/ 157 static int 158 i2s_probe(device_t self) 159 { 160 const char *name; 161 phandle_t subchild; 162 char subchildname[255]; 163 164 name = ofw_bus_get_name(self); 165 if (!name) 166 return (ENXIO); 167 168 if (strcmp(name, "i2s") != 0) 169 return (ENXIO); 170 171 /* 172 * Do not attach to "lightshow" I2S devices on Xserves. This controller 173 * is used there to control the LEDs on the front panel, and this 174 * driver can't handle it. 175 */ 176 subchild = OF_child(OF_child(ofw_bus_get_node(self))); 177 if (subchild != 0 && OF_getprop(subchild, "name", subchildname, 178 sizeof(subchildname)) > 0 && strcmp(subchildname, "lightshow") == 0) 179 return (ENXIO); 180 181 device_set_desc(self, "Apple I2S Audio Controller"); 182 183 return (0); 184 } 185 186 static phandle_t of_find_firstchild_byname(phandle_t, const char *); 187 188 static int 189 i2s_attach(device_t self) 190 { 191 struct i2s_softc *sc; 192 struct resource *dbdma_irq; 193 void *dbdma_ih; 194 int rid, oirq, err; 195 phandle_t port; 196 197 sc = malloc(sizeof(*sc), M_DEVBUF, M_WAITOK | M_ZERO); 198 199 sc->aoa.sc_dev = self; 200 sc->node = ofw_bus_get_node(self); 201 202 port = of_find_firstchild_byname(sc->node, "i2s-a"); 203 if (port == -1) 204 return (ENXIO); 205 sc->soundnode = of_find_firstchild_byname(port, "sound"); 206 if (sc->soundnode == -1) 207 return (ENXIO); 208 209 mtx_init(&sc->port_mtx, "port_mtx", NULL, MTX_DEF); 210 211 /* Map the controller register space. */ 212 rid = 0; 213 sc->reg = bus_alloc_resource_any(self, SYS_RES_MEMORY, &rid, RF_ACTIVE); 214 if (sc->reg == NULL) 215 return ENXIO; 216 217 /* Map the DBDMA channel register space. */ 218 rid = 1; 219 sc->aoa.sc_odma = bus_alloc_resource_any(self, SYS_RES_MEMORY, &rid, 220 RF_ACTIVE); 221 if (sc->aoa.sc_odma == NULL) 222 return ENXIO; 223 224 /* Establish the DBDMA channel edge-triggered interrupt. */ 225 rid = 1; 226 dbdma_irq = bus_alloc_resource_any(self, SYS_RES_IRQ, 227 &rid, RF_SHAREABLE | RF_ACTIVE); 228 if (dbdma_irq == NULL) 229 return (ENXIO); 230 231 /* Now initialize the controller. */ 232 err = i2s_setup(sc, 44100, 16, 64); 233 if (err != 0) 234 return (err); 235 236 snd_setup_intr(self, dbdma_irq, INTR_MPSAFE, aoa_interrupt, 237 sc, &dbdma_ih); 238 239 oirq = rman_get_start(dbdma_irq); 240 err = powerpc_config_intr(oirq, INTR_TRIGGER_EDGE, INTR_POLARITY_LOW); 241 if (err != 0) 242 return (err); 243 244 /* 245 * Register a hook for delayed attach in order to allow 246 * the I2C controller to attach. 247 */ 248 if ((i2s_delayed_attach = malloc(sizeof(struct intr_config_hook), 249 M_TEMP, M_WAITOK | M_ZERO)) == NULL) 250 return (ENOMEM); 251 252 i2s_delayed_attach->ich_func = i2s_postattach; 253 i2s_delayed_attach->ich_arg = sc; 254 255 if (config_intrhook_establish(i2s_delayed_attach) != 0) 256 return (ENOMEM); 257 258 return (aoa_attach(sc)); 259 } 260 261 /***************************************************************************** 262 GPIO routines. 263 *****************************************************************************/ 264 265 enum gpio_ctrl { 266 AMP_MUTE, 267 HEADPHONE_MUTE, 268 LINEOUT_MUTE, 269 AUDIO_HW_RESET, 270 HEADPHONE_DETECT, 271 LINEOUT_DETECT, 272 GPIO_CTRL_NUM 273 }; 274 275 #define GPIO_CTRL_EXTINT_SET \ 276 ((1 << HEADPHONE_DETECT) | \ 277 (1 << LINEOUT_DETECT)) 278 279 static struct aoagpio_softc *gpio_ctrls[GPIO_CTRL_NUM] = 280 {NULL, NULL, NULL, NULL, NULL, NULL}; 281 282 static struct gpio_match { 283 const char *name; 284 enum gpio_ctrl ctrl; 285 } gpio_controls[] = { 286 {"headphone-mute", HEADPHONE_MUTE}, 287 {"lineout-mute", LINEOUT_MUTE}, 288 {"amp-mute", AMP_MUTE}, 289 {"headphone-detect", HEADPHONE_DETECT}, 290 {"lineout-detect", LINEOUT_DETECT}, 291 {"line-output-detect", LINEOUT_DETECT}, 292 {"audio-hw-reset", AUDIO_HW_RESET}, 293 {"hw-reset", AUDIO_HW_RESET}, 294 {NULL, GPIO_CTRL_NUM} 295 }; 296 297 static void i2s_cint(struct i2s_softc *); 298 299 static void 300 aoagpio_int(void *cookie) 301 { 302 device_t self = cookie; 303 struct aoagpio_softc *sc; 304 305 sc = device_get_softc(self); 306 307 if (macgpio_read(self) & GPIO_LEVEL_RO) 308 sc->level = sc->detect_active; 309 else 310 sc->level = !(sc->detect_active); 311 312 if (sc->i2s) 313 i2s_cint(sc->i2s); 314 } 315 316 static int 317 aoagpio_probe(device_t gpio) 318 { 319 phandle_t node; 320 char bname[32]; 321 const char *name; 322 struct gpio_match *m; 323 struct aoagpio_softc *sc; 324 325 node = ofw_bus_get_node(gpio); 326 if (node == 0 || node == -1) 327 return (EINVAL); 328 329 bzero(bname, sizeof(bname)); 330 if (OF_getprop(node, "audio-gpio", bname, sizeof(bname)) > 2) 331 name = bname; 332 else 333 name = ofw_bus_get_name(gpio); 334 335 /* Try to find a match. */ 336 for (m = gpio_controls; m->name != NULL; m++) { 337 if (strcmp(name, m->name) == 0) { 338 sc = device_get_softc(gpio); 339 gpio_ctrls[m->ctrl] = sc; 340 sc->dev = gpio; 341 sc->ctrl = m->ctrl; 342 sc->level = 0; 343 sc->detect_active = 0; 344 sc->i2s = NULL; 345 346 OF_getprop(node, "audio-gpio-active-state", 347 &sc->detect_active, sizeof(sc->detect_active)); 348 349 if ((1 << m->ctrl) & GPIO_CTRL_EXTINT_SET) 350 aoagpio_int(gpio); 351 352 device_set_desc(gpio, m->name); 353 device_quiet(gpio); 354 return (0); 355 } 356 } 357 358 return (ENXIO); 359 } 360 361 static int 362 aoagpio_attach(device_t gpio) 363 { 364 struct aoagpio_softc *sc; 365 struct resource *r; 366 void *cookie; 367 int irq, rid = 0; 368 369 sc = device_get_softc(gpio); 370 371 if ((1 << sc->ctrl) & GPIO_CTRL_EXTINT_SET) { 372 r = bus_alloc_resource_any(gpio, SYS_RES_IRQ, &rid, RF_ACTIVE); 373 if (r == NULL) 374 return (ENXIO); 375 376 irq = rman_get_start(r); 377 DPRINTF(("interrupting at irq %d\n", irq)); 378 379 if (powerpc_config_intr(irq, INTR_TRIGGER_EDGE, 380 INTR_POLARITY_LOW) != 0) 381 return (ENXIO); 382 383 bus_setup_intr(gpio, r, INTR_TYPE_MISC | INTR_MPSAFE | 384 INTR_ENTROPY, NULL, aoagpio_int, gpio, &cookie); 385 } 386 387 return (0); 388 } 389 390 /* 391 * I2S module registers 392 */ 393 #define I2S_INT 0x00 394 #define I2S_FORMAT 0x10 395 #define I2S_FRAMECOUNT 0x40 396 #define I2S_FRAMEMATCH 0x50 397 #define I2S_WORDSIZE 0x60 398 399 /* I2S_INT register definitions */ 400 #define I2S_INT_CLKSTOPPEND 0x01000000 /* clock-stop interrupt pending */ 401 402 /* I2S_FORMAT register definitions */ 403 #define CLKSRC_49MHz 0x80000000 /* Use 49152000Hz Osc. */ 404 #define CLKSRC_45MHz 0x40000000 /* Use 45158400Hz Osc. */ 405 #define CLKSRC_18MHz 0x00000000 /* Use 18432000Hz Osc. */ 406 #define MCLK_DIV_MASK 0x1f000000 /* MCLK = SRC / DIV */ 407 #define SCLK_DIV_MASK 0x00f00000 /* SCLK = MCLK / DIV */ 408 #define SCLK_MASTER 0x00080000 /* Master mode */ 409 #define SCLK_SLAVE 0x00000000 /* Slave mode */ 410 #define SERIAL_FORMAT 0x00070000 411 #define SERIAL_SONY 0x00000000 412 #define SERIAL_64x 0x00010000 413 #define SERIAL_32x 0x00020000 414 #define SERIAL_DAV 0x00040000 415 #define SERIAL_SILICON 0x00050000 416 417 /* I2S_WORDSIZE register definitions */ 418 #define INPUT_STEREO (2 << 24) 419 #define INPUT_MONO (1 << 24) 420 #define INPUT_16BIT (0 << 16) 421 #define INPUT_24BIT (3 << 16) 422 #define OUTPUT_STEREO (2 << 8) 423 #define OUTPUT_MONO (1 << 8) 424 #define OUTPUT_16BIT (0 << 0) 425 #define OUTPUT_24BIT (3 << 0) 426 427 /* Master clock, needed by some codecs. We hardcode this 428 to 256 * fs as this is valid for most codecs. */ 429 #define MCLK_FS 256 430 431 /* Number of clock sources we can use. */ 432 #define NCLKS 3 433 static const struct i2s_clksrc { 434 u_int cs_clock; 435 u_int cs_reg; 436 } clksrc[NCLKS] = { 437 {49152000, CLKSRC_49MHz}, 438 {45158400, CLKSRC_45MHz}, 439 {18432000, CLKSRC_18MHz} 440 }; 441 442 /* Configure the I2S controller for the required settings. 443 'rate' is the frame rate. 444 'wordsize' is the sample size (usually 16 bits). 445 'sclk_fs' is the SCLK/framerate ratio, which needs to be equal 446 or greater to the number of bits per frame. */ 447 448 static int 449 i2s_setup(struct i2s_softc *sc, u_int rate, u_int wordsize, u_int sclk_fs) 450 { 451 u_int mclk, mdiv, sdiv; 452 u_int reg = 0, x, wordformat; 453 u_int i; 454 455 /* Make sure the settings are consistent... */ 456 if ((wordsize * 2) > sclk_fs) 457 return (EINVAL); 458 459 if (sclk_fs != 32 && sclk_fs != 64) 460 return (EINVAL); 461 462 /* 463 * Find a clock source to derive the master clock (MCLK) 464 * and the I2S bit block (SCLK) and set the divisors as 465 * appropriate. 466 */ 467 mclk = rate * MCLK_FS; 468 sdiv = MCLK_FS / sclk_fs; 469 470 for (i = 0; i < NCLKS; ++i) { 471 if ((clksrc[i].cs_clock % mclk) == 0) { 472 reg = clksrc[i].cs_reg; 473 mdiv = clksrc[i].cs_clock / mclk; 474 break; 475 } 476 } 477 if (reg == 0) 478 return (EINVAL); 479 480 switch (mdiv) { 481 /* exception cases */ 482 case 1: 483 x = 14; 484 break; 485 case 3: 486 x = 13; 487 break; 488 case 5: 489 x = 12; 490 break; 491 default: 492 x = (mdiv / 2) - 1; 493 break; 494 } 495 reg |= (x << 24) & MCLK_DIV_MASK; 496 497 switch (sdiv) { 498 case 1: 499 x = 8; 500 break; 501 case 3: 502 x = 9; 503 break; 504 default: 505 x = (sdiv / 2) - 1; 506 break; 507 } 508 reg |= (x << 20) & SCLK_DIV_MASK; 509 510 /* 511 * XXX use master mode for now. This needs to be 512 * revisited if we want to add recording from SPDIF some day. 513 */ 514 reg |= SCLK_MASTER; 515 516 switch (sclk_fs) { 517 case 64: 518 reg |= SERIAL_64x; 519 break; 520 case 32: 521 reg |= SERIAL_32x; 522 break; 523 } 524 525 /* stereo input and output */ 526 wordformat = INPUT_STEREO | OUTPUT_STEREO; 527 528 switch (wordsize) { 529 case 16: 530 wordformat |= INPUT_16BIT | OUTPUT_16BIT; 531 break; 532 case 24: 533 wordformat |= INPUT_24BIT | OUTPUT_24BIT; 534 break; 535 default: 536 return (EINVAL); 537 } 538 539 x = bus_read_4(sc->reg, I2S_WORDSIZE); 540 if (x != wordformat) 541 bus_write_4(sc->reg, I2S_WORDSIZE, wordformat); 542 543 x = bus_read_4(sc->reg, I2S_FORMAT); 544 if (x != reg) { 545 /* 546 * XXX to change the format we need to stop the clock 547 * via the FCR registers. For now, rely on the firmware 548 * to set sane defaults (44100). 549 */ 550 printf("i2s_setup: changing format not supported yet.\n"); 551 return (ENOTSUP); 552 553 #ifdef notyet 554 if (obio_fcr_isset(OBIO_FCR1, I2S0CLKEN)) { 555 556 bus_space_write_4(sc->sc_tag, sc->sc_bsh, I2S_INT, 557 I2S_INT_CLKSTOPPEND); 558 559 obio_fcr_clear(OBIO_FCR1, I2S0CLKEN); 560 561 for (timo = 1000; timo > 0; timo--) { 562 if (bus_space_read_4(sc->sc_tag, sc->sc_bsh, 563 I2S_INT) & I2S_INT_CLKSTOPPEND) 564 break; 565 566 DELAY(10); 567 } 568 569 if (timo == 0) 570 printf("%s: timeout waiting for clock to stop\n", 571 sc->sc_dev.dv_xname); 572 } 573 574 bus_space_write_4(sc->sc_tag, sc->sc_bsh, I2S_FORMAT, reg); 575 576 obio_fcr_set(OBIO_FCR1, I2S0CLKEN); 577 #endif 578 } 579 580 return (0); 581 } 582 583 584 /* XXX this does not belong here. */ 585 static phandle_t 586 of_find_firstchild_byname(phandle_t node, const char *req_name) 587 { 588 char name[32]; /* max name len per OF spec. */ 589 phandle_t n; 590 591 for (n = OF_child(node); n != -1; n = OF_peer(n)) { 592 bzero(name, sizeof(name)); 593 OF_getprop(n, "name", name, sizeof(name)); 594 595 if (strcmp(name, req_name) == 0) 596 return (n); 597 } 598 599 return (-1); 600 } 601 602 603 static u_int 604 gpio_read(enum gpio_ctrl ctrl) 605 { 606 struct aoagpio_softc *sc; 607 608 if ((sc = gpio_ctrls[ctrl]) == NULL) 609 return (0); 610 611 return (macgpio_read(sc->dev) & GPIO_DATA); 612 } 613 614 static void 615 gpio_write(enum gpio_ctrl ctrl, u_int x) 616 { 617 struct aoagpio_softc *sc; 618 u_int reg; 619 620 if ((sc = gpio_ctrls[ctrl]) == NULL) 621 return; 622 623 reg = GPIO_DDR_OUTPUT; 624 if (x) 625 reg |= GPIO_DATA; 626 627 macgpio_write(sc->dev, reg); 628 } 629 630 static void 631 i2s_cint(struct i2s_softc *sc) 632 { 633 u_int mask = 0; 634 635 if (gpio_ctrls[HEADPHONE_DETECT] && 636 gpio_ctrls[HEADPHONE_DETECT]->level) 637 mask |= 1 << 1; 638 639 if (gpio_ctrls[LINEOUT_DETECT] && 640 gpio_ctrls[LINEOUT_DETECT]->level) 641 mask |= 1 << 2; 642 643 if (mask == 0) 644 mask = 1 << 0; /* fall back to speakers. */ 645 646 i2s_set_outputs(sc, mask); 647 } 648 649 #define reset_active 0 650 651 /* these values are in microseconds */ 652 #define RESET_SETUP_TIME 5000 653 #define RESET_HOLD_TIME 20000 654 #define RESET_RELEASE_TIME 10000 655 656 static void 657 i2s_audio_hw_reset(struct i2s_softc *sc) 658 { 659 if (gpio_ctrls[AUDIO_HW_RESET]) { 660 DPRINTF(("resetting codec\n")); 661 662 gpio_write(AUDIO_HW_RESET, !reset_active); /* Negate RESET */ 663 DELAY(RESET_SETUP_TIME); 664 665 gpio_write(AUDIO_HW_RESET, reset_active); /* Assert RESET */ 666 DELAY(RESET_HOLD_TIME); 667 668 gpio_write(AUDIO_HW_RESET, !reset_active); /* Negate RESET */ 669 DELAY(RESET_RELEASE_TIME); 670 671 } else { 672 DPRINTF(("no audio_hw_reset\n")); 673 } 674 } 675 676 #define AMP_ACTIVE 0 /* XXX OF */ 677 #define HEADPHONE_ACTIVE 0 /* XXX OF */ 678 #define LINEOUT_ACTIVE 0 /* XXX OF */ 679 680 #define MUTE_CONTROL(xxx, yyy) \ 681 static void \ 682 i2s_mute_##xxx(struct i2s_softc *sc, int mute) \ 683 { \ 684 int x; \ 685 \ 686 if (gpio_ctrls[yyy##_MUTE] == NULL) \ 687 return; \ 688 if (mute) \ 689 x = yyy##_ACTIVE; \ 690 else \ 691 x = ! yyy##_ACTIVE; \ 692 \ 693 if (x != gpio_read(yyy##_MUTE)) \ 694 gpio_write(yyy##_MUTE, x); \ 695 } 696 697 MUTE_CONTROL(speaker, AMP) 698 MUTE_CONTROL(headphone, HEADPHONE) 699 MUTE_CONTROL(lineout, LINEOUT) 700 701 static void 702 i2s_set_outputs(void *ptr, u_int mask) 703 { 704 struct i2s_softc *sc = ptr; 705 706 if (mask == sc->output_mask) 707 return; 708 709 mtx_lock(&sc->port_mtx); 710 711 i2s_mute_speaker(sc, 1); 712 i2s_mute_headphone(sc, 1); 713 i2s_mute_lineout(sc, 1); 714 715 DPRINTF(("enabled outputs: ")); 716 717 if (mask & (1 << 0)) { 718 DPRINTF(("SPEAKER ")); 719 i2s_mute_speaker(sc, 0); 720 } 721 if (mask & (1 << 1)) { 722 DPRINTF(("HEADPHONE ")); 723 i2s_mute_headphone(sc, 0); 724 } 725 if (mask & (1 << 2)) { 726 DPRINTF(("LINEOUT ")); 727 i2s_mute_lineout(sc, 0); 728 } 729 730 DPRINTF(("\n")); 731 sc->output_mask = mask; 732 733 mtx_unlock(&sc->port_mtx); 734 } 735 736 static void 737 i2s_postattach(void *xsc) 738 { 739 struct i2s_softc *sc = xsc; 740 device_t self; 741 int i; 742 743 self = sc->aoa.sc_dev; 744 745 /* Reset the codec. */ 746 i2s_audio_hw_reset(sc); 747 748 /* If we have a codec, initialize it. */ 749 if (i2s_mixer) 750 mixer_init(self, i2s_mixer_class, i2s_mixer); 751 752 /* Read initial port status. */ 753 i2s_cint(sc); 754 755 /* Enable GPIO interrupt callback. */ 756 for (i = 0; i < GPIO_CTRL_NUM; i++) 757 if (gpio_ctrls[i]) 758 gpio_ctrls[i]->i2s = sc; 759 760 config_intrhook_disestablish(i2s_delayed_attach); 761 free(i2s_delayed_attach, M_TEMP); 762 } 763
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