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