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