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1/*
2 * Apple Onboard Audio driver -- layout/machine id fabric
3 *
4 * Copyright 2006-2008 Johannes Berg <johannes@sipsolutions.net>
5 *
6 * GPL v2, can be found in COPYING.
7 *
8 *
9 * This fabric module looks for sound codecs based on the
10 * layout-id or device-id property in the device tree.
11 */
12#include <asm/prom.h>
13#include <linux/list.h>
14#include <linux/module.h>
15#include <linux/slab.h>
16#include "../aoa.h"
17#include "../soundbus/soundbus.h"
18
19MODULE_AUTHOR("Johannes Berg <johannes@sipsolutions.net>");
20MODULE_LICENSE("GPL");
21MODULE_DESCRIPTION("Layout-ID fabric for snd-aoa");
22
23#define MAX_CODECS_PER_BUS 2
24
25/* These are the connections the layout fabric
26 * knows about. It doesn't really care about the
27 * input ones, but I thought I'd separate them
28 * to give them proper names. The thing is that
29 * Apple usually will distinguish the active output
30 * by GPIOs, while the active input is set directly
31 * on the codec. Hence we here tell the codec what
32 * we think is connected. This information is hard-
33 * coded below ... */
34#define CC_SPEAKERS (1<<0)
35#define CC_HEADPHONE (1<<1)
36#define CC_LINEOUT (1<<2)
37#define CC_DIGITALOUT (1<<3)
38#define CC_LINEIN (1<<4)
39#define CC_MICROPHONE (1<<5)
40#define CC_DIGITALIN (1<<6)
41/* pretty bogus but users complain...
42 * This is a flag saying that the LINEOUT
43 * should be renamed to HEADPHONE.
44 * be careful with input detection! */
45#define CC_LINEOUT_LABELLED_HEADPHONE (1<<7)
46
47struct codec_connection {
48 /* CC_ flags from above */
49 int connected;
50 /* codec dependent bit to be set in the aoa_codec.connected field.
51 * This intentionally doesn't have any generic flags because the
52 * fabric has to know the codec anyway and all codecs might have
53 * different connectors */
54 int codec_bit;
55};
56
57struct codec_connect_info {
58 char *name;
59 struct codec_connection *connections;
60};
61
62#define LAYOUT_FLAG_COMBO_LINEOUT_SPDIF (1<<0)
63
64struct layout {
65 unsigned int layout_id, device_id;
66 struct codec_connect_info codecs[MAX_CODECS_PER_BUS];
67 int flags;
68
69 /* if busname is not assigned, we use 'Master' below,
70 * so that our layout table doesn't need to be filled
71 * too much.
72 * We only assign these two if we expect to find more
73 * than one soundbus, i.e. on those machines with
74 * multiple layout-ids */
75 char *busname;
76 int pcmid;
77};
78
79MODULE_ALIAS("sound-layout-36");
80MODULE_ALIAS("sound-layout-41");
81MODULE_ALIAS("sound-layout-45");
82MODULE_ALIAS("sound-layout-47");
83MODULE_ALIAS("sound-layout-48");
84MODULE_ALIAS("sound-layout-49");
85MODULE_ALIAS("sound-layout-50");
86MODULE_ALIAS("sound-layout-51");
87MODULE_ALIAS("sound-layout-56");
88MODULE_ALIAS("sound-layout-57");
89MODULE_ALIAS("sound-layout-58");
90MODULE_ALIAS("sound-layout-60");
91MODULE_ALIAS("sound-layout-61");
92MODULE_ALIAS("sound-layout-62");
93MODULE_ALIAS("sound-layout-64");
94MODULE_ALIAS("sound-layout-65");
95MODULE_ALIAS("sound-layout-66");
96MODULE_ALIAS("sound-layout-67");
97MODULE_ALIAS("sound-layout-68");
98MODULE_ALIAS("sound-layout-69");
99MODULE_ALIAS("sound-layout-70");
100MODULE_ALIAS("sound-layout-72");
101MODULE_ALIAS("sound-layout-76");
102MODULE_ALIAS("sound-layout-80");
103MODULE_ALIAS("sound-layout-82");
104MODULE_ALIAS("sound-layout-84");
105MODULE_ALIAS("sound-layout-86");
106MODULE_ALIAS("sound-layout-90");
107MODULE_ALIAS("sound-layout-92");
108MODULE_ALIAS("sound-layout-94");
109MODULE_ALIAS("sound-layout-96");
110MODULE_ALIAS("sound-layout-98");
111MODULE_ALIAS("sound-layout-100");
112
113MODULE_ALIAS("aoa-device-id-14");
114MODULE_ALIAS("aoa-device-id-22");
115MODULE_ALIAS("aoa-device-id-35");
116
117/* onyx with all but microphone connected */
118static struct codec_connection onyx_connections_nomic[] = {
119 {
120 .connected = CC_SPEAKERS | CC_HEADPHONE | CC_LINEOUT,
121 .codec_bit = 0,
122 },
123 {
124 .connected = CC_DIGITALOUT,
125 .codec_bit = 1,
126 },
127 {
128 .connected = CC_LINEIN,
129 .codec_bit = 2,
130 },
131 {} /* terminate array by .connected == 0 */
132};
133
134/* onyx on machines without headphone */
135static struct codec_connection onyx_connections_noheadphones[] = {
136 {
137 .connected = CC_SPEAKERS | CC_LINEOUT |
138 CC_LINEOUT_LABELLED_HEADPHONE,
139 .codec_bit = 0,
140 },
141 {
142 .connected = CC_DIGITALOUT,
143 .codec_bit = 1,
144 },
145 /* FIXME: are these correct? probably not for all the machines
146 * below ... If not this will need separating. */
147 {
148 .connected = CC_LINEIN,
149 .codec_bit = 2,
150 },
151 {
152 .connected = CC_MICROPHONE,
153 .codec_bit = 3,
154 },
155 {} /* terminate array by .connected == 0 */
156};
157
158/* onyx on machines with real line-out */
159static struct codec_connection onyx_connections_reallineout[] = {
160 {
161 .connected = CC_SPEAKERS | CC_LINEOUT | CC_HEADPHONE,
162 .codec_bit = 0,
163 },
164 {
165 .connected = CC_DIGITALOUT,
166 .codec_bit = 1,
167 },
168 {
169 .connected = CC_LINEIN,
170 .codec_bit = 2,
171 },
172 {} /* terminate array by .connected == 0 */
173};
174
175/* tas on machines without line out */
176static struct codec_connection tas_connections_nolineout[] = {
177 {
178 .connected = CC_SPEAKERS | CC_HEADPHONE,
179 .codec_bit = 0,
180 },
181 {
182 .connected = CC_LINEIN,
183 .codec_bit = 2,
184 },
185 {
186 .connected = CC_MICROPHONE,
187 .codec_bit = 3,
188 },
189 {} /* terminate array by .connected == 0 */
190};
191
192/* tas on machines with neither line out nor line in */
193static struct codec_connection tas_connections_noline[] = {
194 {
195 .connected = CC_SPEAKERS | CC_HEADPHONE,
196 .codec_bit = 0,
197 },
198 {
199 .connected = CC_MICROPHONE,
200 .codec_bit = 3,
201 },
202 {} /* terminate array by .connected == 0 */
203};
204
205/* tas on machines without microphone */
206static struct codec_connection tas_connections_nomic[] = {
207 {
208 .connected = CC_SPEAKERS | CC_HEADPHONE | CC_LINEOUT,
209 .codec_bit = 0,
210 },
211 {
212 .connected = CC_LINEIN,
213 .codec_bit = 2,
214 },
215 {} /* terminate array by .connected == 0 */
216};
217
218/* tas on machines with everything connected */
219static struct codec_connection tas_connections_all[] = {
220 {
221 .connected = CC_SPEAKERS | CC_HEADPHONE | CC_LINEOUT,
222 .codec_bit = 0,
223 },
224 {
225 .connected = CC_LINEIN,
226 .codec_bit = 2,
227 },
228 {
229 .connected = CC_MICROPHONE,
230 .codec_bit = 3,
231 },
232 {} /* terminate array by .connected == 0 */
233};
234
235static struct codec_connection toonie_connections[] = {
236 {
237 .connected = CC_SPEAKERS | CC_HEADPHONE,
238 .codec_bit = 0,
239 },
240 {} /* terminate array by .connected == 0 */
241};
242
243static struct codec_connection topaz_input[] = {
244 {
245 .connected = CC_DIGITALIN,
246 .codec_bit = 0,
247 },
248 {} /* terminate array by .connected == 0 */
249};
250
251static struct codec_connection topaz_output[] = {
252 {
253 .connected = CC_DIGITALOUT,
254 .codec_bit = 1,
255 },
256 {} /* terminate array by .connected == 0 */
257};
258
259static struct codec_connection topaz_inout[] = {
260 {
261 .connected = CC_DIGITALIN,
262 .codec_bit = 0,
263 },
264 {
265 .connected = CC_DIGITALOUT,
266 .codec_bit = 1,
267 },
268 {} /* terminate array by .connected == 0 */
269};
270
271static struct layout layouts[] = {
272 /* last PowerBooks (15" Oct 2005) */
273 { .layout_id = 82,
274 .flags = LAYOUT_FLAG_COMBO_LINEOUT_SPDIF,
275 .codecs[0] = {
276 .name = "onyx",
277 .connections = onyx_connections_noheadphones,
278 },
279 .codecs[1] = {
280 .name = "topaz",
281 .connections = topaz_input,
282 },
283 },
284 /* PowerMac9,1 */
285 { .layout_id = 60,
286 .codecs[0] = {
287 .name = "onyx",
288 .connections = onyx_connections_reallineout,
289 },
290 },
291 /* PowerMac9,1 */
292 { .layout_id = 61,
293 .codecs[0] = {
294 .name = "topaz",
295 .connections = topaz_input,
296 },
297 },
298 /* PowerBook5,7 */
299 { .layout_id = 64,
300 .flags = LAYOUT_FLAG_COMBO_LINEOUT_SPDIF,
301 .codecs[0] = {
302 .name = "onyx",
303 .connections = onyx_connections_noheadphones,
304 },
305 },
306 /* PowerBook5,7 */
307 { .layout_id = 65,
308 .codecs[0] = {
309 .name = "topaz",
310 .connections = topaz_input,
311 },
312 },
313 /* PowerBook5,9 [17" Oct 2005] */
314 { .layout_id = 84,
315 .flags = LAYOUT_FLAG_COMBO_LINEOUT_SPDIF,
316 .codecs[0] = {
317 .name = "onyx",
318 .connections = onyx_connections_noheadphones,
319 },
320 .codecs[1] = {
321 .name = "topaz",
322 .connections = topaz_input,
323 },
324 },
325 /* PowerMac8,1 */
326 { .layout_id = 45,
327 .codecs[0] = {
328 .name = "onyx",
329 .connections = onyx_connections_noheadphones,
330 },
331 .codecs[1] = {
332 .name = "topaz",
333 .connections = topaz_input,
334 },
335 },
336 /* Quad PowerMac (analog in, analog/digital out) */
337 { .layout_id = 68,
338 .codecs[0] = {
339 .name = "onyx",
340 .connections = onyx_connections_nomic,
341 },
342 },
343 /* Quad PowerMac (digital in) */
344 { .layout_id = 69,
345 .codecs[0] = {
346 .name = "topaz",
347 .connections = topaz_input,
348 },
349 .busname = "digital in", .pcmid = 1 },
350 /* Early 2005 PowerBook (PowerBook 5,6) */
351 { .layout_id = 70,
352 .codecs[0] = {
353 .name = "tas",
354 .connections = tas_connections_nolineout,
355 },
356 },
357 /* PowerBook 5,4 */
358 { .layout_id = 51,
359 .codecs[0] = {
360 .name = "tas",
361 .connections = tas_connections_nolineout,
362 },
363 },
364 /* PowerBook6,7 */
365 { .layout_id = 80,
366 .codecs[0] = {
367 .name = "tas",
368 .connections = tas_connections_noline,
369 },
370 },
371 /* PowerBook6,8 */
372 { .layout_id = 72,
373 .codecs[0] = {
374 .name = "tas",
375 .connections = tas_connections_nolineout,
376 },
377 },
378 /* PowerMac8,2 */
379 { .layout_id = 86,
380 .codecs[0] = {
381 .name = "onyx",
382 .connections = onyx_connections_nomic,
383 },
384 .codecs[1] = {
385 .name = "topaz",
386 .connections = topaz_input,
387 },
388 },
389 /* PowerBook6,7 */
390 { .layout_id = 92,
391 .codecs[0] = {
392 .name = "tas",
393 .connections = tas_connections_nolineout,
394 },
395 },
396 /* PowerMac10,1 (Mac Mini) */
397 { .layout_id = 58,
398 .codecs[0] = {
399 .name = "toonie",
400 .connections = toonie_connections,
401 },
402 },
403 {
404 .layout_id = 96,
405 .codecs[0] = {
406 .name = "onyx",
407 .connections = onyx_connections_noheadphones,
408 },
409 },
410 /* unknown, untested, but this comes from Apple */
411 { .layout_id = 41,
412 .codecs[0] = {
413 .name = "tas",
414 .connections = tas_connections_all,
415 },
416 },
417 { .layout_id = 36,
418 .codecs[0] = {
419 .name = "tas",
420 .connections = tas_connections_nomic,
421 },
422 .codecs[1] = {
423 .name = "topaz",
424 .connections = topaz_inout,
425 },
426 },
427 { .layout_id = 47,
428 .codecs[0] = {
429 .name = "onyx",
430 .connections = onyx_connections_noheadphones,
431 },
432 },
433 { .layout_id = 48,
434 .codecs[0] = {
435 .name = "topaz",
436 .connections = topaz_input,
437 },
438 },
439 { .layout_id = 49,
440 .codecs[0] = {
441 .name = "onyx",
442 .connections = onyx_connections_nomic,
443 },
444 },
445 { .layout_id = 50,
446 .codecs[0] = {
447 .name = "topaz",
448 .connections = topaz_input,
449 },
450 },
451 { .layout_id = 56,
452 .codecs[0] = {
453 .name = "onyx",
454 .connections = onyx_connections_noheadphones,
455 },
456 },
457 { .layout_id = 57,
458 .codecs[0] = {
459 .name = "topaz",
460 .connections = topaz_input,
461 },
462 },
463 { .layout_id = 62,
464 .codecs[0] = {
465 .name = "onyx",
466 .connections = onyx_connections_noheadphones,
467 },
468 .codecs[1] = {
469 .name = "topaz",
470 .connections = topaz_output,
471 },
472 },
473 { .layout_id = 66,
474 .codecs[0] = {
475 .name = "onyx",
476 .connections = onyx_connections_noheadphones,
477 },
478 },
479 { .layout_id = 67,
480 .codecs[0] = {
481 .name = "topaz",
482 .connections = topaz_input,
483 },
484 },
485 { .layout_id = 76,
486 .codecs[0] = {
487 .name = "tas",
488 .connections = tas_connections_nomic,
489 },
490 .codecs[1] = {
491 .name = "topaz",
492 .connections = topaz_inout,
493 },
494 },
495 { .layout_id = 90,
496 .codecs[0] = {
497 .name = "tas",
498 .connections = tas_connections_noline,
499 },
500 },
501 { .layout_id = 94,
502 .codecs[0] = {
503 .name = "onyx",
504 /* but it has an external mic?? how to select? */
505 .connections = onyx_connections_noheadphones,
506 },
507 },
508 { .layout_id = 98,
509 .codecs[0] = {
510 .name = "toonie",
511 .connections = toonie_connections,
512 },
513 },
514 { .layout_id = 100,
515 .codecs[0] = {
516 .name = "topaz",
517 .connections = topaz_input,
518 },
519 .codecs[1] = {
520 .name = "onyx",
521 .connections = onyx_connections_noheadphones,
522 },
523 },
524 /* PowerMac3,4 */
525 { .device_id = 14,
526 .codecs[0] = {
527 .name = "tas",
528 .connections = tas_connections_noline,
529 },
530 },
531 /* PowerMac3,6 */
532 { .device_id = 22,
533 .codecs[0] = {
534 .name = "tas",
535 .connections = tas_connections_all,
536 },
537 },
538 /* PowerBook5,2 */
539 { .device_id = 35,
540 .codecs[0] = {
541 .name = "tas",
542 .connections = tas_connections_all,
543 },
544 },
545 {}
546};
547
548static struct layout *find_layout_by_id(unsigned int id)
549{
550 struct layout *l;
551
552 l = layouts;
553 while (l->codecs[0].name) {
554 if (l->layout_id == id)
555 return l;
556 l++;
557 }
558 return NULL;
559}
560
561static struct layout *find_layout_by_device(unsigned int id)
562{
563 struct layout *l;
564
565 l = layouts;
566 while (l->codecs[0].name) {
567 if (l->device_id == id)
568 return l;
569 l++;
570 }
571 return NULL;
572}
573
574static void use_layout(struct layout *l)
575{
576 int i;
577
578 for (i=0; i<MAX_CODECS_PER_BUS; i++) {
579 if (l->codecs[i].name) {
580 request_module("snd-aoa-codec-%s", l->codecs[i].name);
581 }
582 }
583 /* now we wait for the codecs to call us back */
584}
585
586struct layout_dev;
587
588struct layout_dev_ptr {
589 struct layout_dev *ptr;
590};
591
592struct layout_dev {
593 struct list_head list;
594 struct soundbus_dev *sdev;
595 struct device_node *sound;
596 struct aoa_codec *codecs[MAX_CODECS_PER_BUS];
597 struct layout *layout;
598 struct gpio_runtime gpio;
599
600 /* we need these for headphone/lineout detection */
601 struct snd_kcontrol *headphone_ctrl;
602 struct snd_kcontrol *lineout_ctrl;
603 struct snd_kcontrol *speaker_ctrl;
604 struct snd_kcontrol *master_ctrl;
605 struct snd_kcontrol *headphone_detected_ctrl;
606 struct snd_kcontrol *lineout_detected_ctrl;
607
608 struct layout_dev_ptr selfptr_headphone;
609 struct layout_dev_ptr selfptr_lineout;
610
611 u32 have_lineout_detect:1,
612 have_headphone_detect:1,
613 switch_on_headphone:1,
614 switch_on_lineout:1;
615};
616
617static LIST_HEAD(layouts_list);
618static int layouts_list_items;
619/* this can go away but only if we allow multiple cards,
620 * make the fabric handle all the card stuff, etc... */
621static struct layout_dev *layout_device;
622
623#define control_info snd_ctl_boolean_mono_info
624
625#define AMP_CONTROL(n, description) \
626static int n##_control_get(struct snd_kcontrol *kcontrol, \
627 struct snd_ctl_elem_value *ucontrol) \
628{ \
629 struct gpio_runtime *gpio = snd_kcontrol_chip(kcontrol); \
630 if (gpio->methods && gpio->methods->get_##n) \
631 ucontrol->value.integer.value[0] = \
632 gpio->methods->get_##n(gpio); \
633 return 0; \
634} \
635static int n##_control_put(struct snd_kcontrol *kcontrol, \
636 struct snd_ctl_elem_value *ucontrol) \
637{ \
638 struct gpio_runtime *gpio = snd_kcontrol_chip(kcontrol); \
639 if (gpio->methods && gpio->methods->get_##n) \
640 gpio->methods->set_##n(gpio, \
641 !!ucontrol->value.integer.value[0]); \
642 return 1; \
643} \
644static struct snd_kcontrol_new n##_ctl = { \
645 .iface = SNDRV_CTL_ELEM_IFACE_MIXER, \
646 .name = description, \
647 .access = SNDRV_CTL_ELEM_ACCESS_READWRITE, \
648 .info = control_info, \
649 .get = n##_control_get, \
650 .put = n##_control_put, \
651}
652
653AMP_CONTROL(headphone, "Headphone Switch");
654AMP_CONTROL(speakers, "Speakers Switch");
655AMP_CONTROL(lineout, "Line-Out Switch");
656AMP_CONTROL(master, "Master Switch");
657
658static int detect_choice_get(struct snd_kcontrol *kcontrol,
659 struct snd_ctl_elem_value *ucontrol)
660{
661 struct layout_dev *ldev = snd_kcontrol_chip(kcontrol);
662
663 switch (kcontrol->private_value) {
664 case 0:
665 ucontrol->value.integer.value[0] = ldev->switch_on_headphone;
666 break;
667 case 1:
668 ucontrol->value.integer.value[0] = ldev->switch_on_lineout;
669 break;
670 default:
671 return -ENODEV;
672 }
673 return 0;
674}
675
676static int detect_choice_put(struct snd_kcontrol *kcontrol,
677 struct snd_ctl_elem_value *ucontrol)
678{
679 struct layout_dev *ldev = snd_kcontrol_chip(kcontrol);
680
681 switch (kcontrol->private_value) {
682 case 0:
683 ldev->switch_on_headphone = !!ucontrol->value.integer.value[0];
684 break;
685 case 1:
686 ldev->switch_on_lineout = !!ucontrol->value.integer.value[0];
687 break;
688 default:
689 return -ENODEV;
690 }
691 return 1;
692}
693
694static struct snd_kcontrol_new headphone_detect_choice = {
695 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
696 .name = "Headphone Detect Autoswitch",
697 .info = control_info,
698 .access = SNDRV_CTL_ELEM_ACCESS_READWRITE,
699 .get = detect_choice_get,
700 .put = detect_choice_put,
701 .private_value = 0,
702};
703
704static struct snd_kcontrol_new lineout_detect_choice = {
705 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
706 .name = "Line-Out Detect Autoswitch",
707 .info = control_info,
708 .access = SNDRV_CTL_ELEM_ACCESS_READWRITE,
709 .get = detect_choice_get,
710 .put = detect_choice_put,
711 .private_value = 1,
712};
713
714static int detected_get(struct snd_kcontrol *kcontrol,
715 struct snd_ctl_elem_value *ucontrol)
716{
717 struct layout_dev *ldev = snd_kcontrol_chip(kcontrol);
718 int v;
719
720 switch (kcontrol->private_value) {
721 case 0:
722 v = ldev->gpio.methods->get_detect(&ldev->gpio,
723 AOA_NOTIFY_HEADPHONE);
724 break;
725 case 1:
726 v = ldev->gpio.methods->get_detect(&ldev->gpio,
727 AOA_NOTIFY_LINE_OUT);
728 break;
729 default:
730 return -ENODEV;
731 }
732 ucontrol->value.integer.value[0] = v;
733 return 0;
734}
735
736static struct snd_kcontrol_new headphone_detected = {
737 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
738 .name = "Headphone Detected",
739 .info = control_info,
740 .access = SNDRV_CTL_ELEM_ACCESS_READ,
741 .get = detected_get,
742 .private_value = 0,
743};
744
745static struct snd_kcontrol_new lineout_detected = {
746 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
747 .name = "Line-Out Detected",
748 .info = control_info,
749 .access = SNDRV_CTL_ELEM_ACCESS_READ,
750 .get = detected_get,
751 .private_value = 1,
752};
753
754static int check_codec(struct aoa_codec *codec,
755 struct layout_dev *ldev,
756 struct codec_connect_info *cci)
757{
758 const u32 *ref;
759 char propname[32];
760 struct codec_connection *cc;
761
762 /* if the codec has a 'codec' node, we require a reference */
763 if (codec->node && (strcmp(codec->node->name, "codec") == 0)) {
764 snprintf(propname, sizeof(propname),
765 "platform-%s-codec-ref", codec->name);
766 ref = of_get_property(ldev->sound, propname, NULL);
767 if (!ref) {
768 printk(KERN_INFO "snd-aoa-fabric-layout: "
769 "required property %s not present\n", propname);
770 return -ENODEV;
771 }
772 if (*ref != codec->node->phandle) {
773 printk(KERN_INFO "snd-aoa-fabric-layout: "
774 "%s doesn't match!\n", propname);
775 return -ENODEV;
776 }
777 } else {
778 if (layouts_list_items != 1) {
779 printk(KERN_INFO "snd-aoa-fabric-layout: "
780 "more than one soundbus, but no references.\n");
781 return -ENODEV;
782 }
783 }
784 codec->soundbus_dev = ldev->sdev;
785 codec->gpio = &ldev->gpio;
786
787 cc = cci->connections;
788 if (!cc)
789 return -EINVAL;
790
791 printk(KERN_INFO "snd-aoa-fabric-layout: can use this codec\n");
792
793 codec->connected = 0;
794 codec->fabric_data = cc;
795
796 while (cc->connected) {
797 codec->connected |= 1<<cc->codec_bit;
798 cc++;
799 }
800
801 return 0;
802}
803
804static int layout_found_codec(struct aoa_codec *codec)
805{
806 struct layout_dev *ldev;
807 int i;
808
809 list_for_each_entry(ldev, &layouts_list, list) {
810 for (i=0; i<MAX_CODECS_PER_BUS; i++) {
811 if (!ldev->layout->codecs[i].name)
812 continue;
813 if (strcmp(ldev->layout->codecs[i].name, codec->name) == 0) {
814 if (check_codec(codec,
815 ldev,
816 &ldev->layout->codecs[i]) == 0)
817 return 0;
818 }
819 }
820 }
821 return -ENODEV;
822}
823
824static void layout_remove_codec(struct aoa_codec *codec)
825{
826 int i;
827 /* here remove the codec from the layout dev's
828 * codec reference */
829
830 codec->soundbus_dev = NULL;
831 codec->gpio = NULL;
832 for (i=0; i<MAX_CODECS_PER_BUS; i++) {
833 }
834}
835
836static void layout_notify(void *data)
837{
838 struct layout_dev_ptr *dptr = data;
839 struct layout_dev *ldev;
840 int v, update;
841 struct snd_kcontrol *detected, *c;
842 struct snd_card *card = aoa_get_card();
843
844 ldev = dptr->ptr;
845 if (data == &ldev->selfptr_headphone) {
846 v = ldev->gpio.methods->get_detect(&ldev->gpio, AOA_NOTIFY_HEADPHONE);
847 detected = ldev->headphone_detected_ctrl;
848 update = ldev->switch_on_headphone;
849 if (update) {
850 ldev->gpio.methods->set_speakers(&ldev->gpio, !v);
851 ldev->gpio.methods->set_headphone(&ldev->gpio, v);
852 ldev->gpio.methods->set_lineout(&ldev->gpio, 0);
853 }
854 } else if (data == &ldev->selfptr_lineout) {
855 v = ldev->gpio.methods->get_detect(&ldev->gpio, AOA_NOTIFY_LINE_OUT);
856 detected = ldev->lineout_detected_ctrl;
857 update = ldev->switch_on_lineout;
858 if (update) {
859 ldev->gpio.methods->set_speakers(&ldev->gpio, !v);
860 ldev->gpio.methods->set_headphone(&ldev->gpio, 0);
861 ldev->gpio.methods->set_lineout(&ldev->gpio, v);
862 }
863 } else
864 return;
865
866 if (detected)
867 snd_ctl_notify(card, SNDRV_CTL_EVENT_MASK_VALUE, &detected->id);
868 if (update) {
869 c = ldev->headphone_ctrl;
870 if (c)
871 snd_ctl_notify(card, SNDRV_CTL_EVENT_MASK_VALUE, &c->id);
872 c = ldev->speaker_ctrl;
873 if (c)
874 snd_ctl_notify(card, SNDRV_CTL_EVENT_MASK_VALUE, &c->id);
875 c = ldev->lineout_ctrl;
876 if (c)
877 snd_ctl_notify(card, SNDRV_CTL_EVENT_MASK_VALUE, &c->id);
878 }
879}
880
881static void layout_attached_codec(struct aoa_codec *codec)
882{
883 struct codec_connection *cc;
884 struct snd_kcontrol *ctl;
885 int headphones, lineout;
886 struct layout_dev *ldev = layout_device;
887
888 /* need to add this codec to our codec array! */
889
890 cc = codec->fabric_data;
891
892 headphones = codec->gpio->methods->get_detect(codec->gpio,
893 AOA_NOTIFY_HEADPHONE);
894 lineout = codec->gpio->methods->get_detect(codec->gpio,
895 AOA_NOTIFY_LINE_OUT);
896
897 if (codec->gpio->methods->set_master) {
898 ctl = snd_ctl_new1(&master_ctl, codec->gpio);
899 ldev->master_ctrl = ctl;
900 aoa_snd_ctl_add(ctl);
901 }
902 while (cc->connected) {
903 if (cc->connected & CC_SPEAKERS) {
904 if (headphones <= 0 && lineout <= 0)
905 ldev->gpio.methods->set_speakers(codec->gpio, 1);
906 ctl = snd_ctl_new1(&speakers_ctl, codec->gpio);
907 ldev->speaker_ctrl = ctl;
908 aoa_snd_ctl_add(ctl);
909 }
910 if (cc->connected & CC_HEADPHONE) {
911 if (headphones == 1)
912 ldev->gpio.methods->set_headphone(codec->gpio, 1);
913 ctl = snd_ctl_new1(&headphone_ctl, codec->gpio);
914 ldev->headphone_ctrl = ctl;
915 aoa_snd_ctl_add(ctl);
916 ldev->have_headphone_detect =
917 !ldev->gpio.methods
918 ->set_notify(&ldev->gpio,
919 AOA_NOTIFY_HEADPHONE,
920 layout_notify,
921 &ldev->selfptr_headphone);
922 if (ldev->have_headphone_detect) {
923 ctl = snd_ctl_new1(&headphone_detect_choice,
924 ldev);
925 aoa_snd_ctl_add(ctl);
926 ctl = snd_ctl_new1(&headphone_detected,
927 ldev);
928 ldev->headphone_detected_ctrl = ctl;
929 aoa_snd_ctl_add(ctl);
930 }
931 }
932 if (cc->connected & CC_LINEOUT) {
933 if (lineout == 1)
934 ldev->gpio.methods->set_lineout(codec->gpio, 1);
935 ctl = snd_ctl_new1(&lineout_ctl, codec->gpio);
936 if (cc->connected & CC_LINEOUT_LABELLED_HEADPHONE)
937 strlcpy(ctl->id.name,
938 "Headphone Switch", sizeof(ctl->id.name));
939 ldev->lineout_ctrl = ctl;
940 aoa_snd_ctl_add(ctl);
941 ldev->have_lineout_detect =
942 !ldev->gpio.methods
943 ->set_notify(&ldev->gpio,
944 AOA_NOTIFY_LINE_OUT,
945 layout_notify,
946 &ldev->selfptr_lineout);
947 if (ldev->have_lineout_detect) {
948 ctl = snd_ctl_new1(&lineout_detect_choice,
949 ldev);
950 if (cc->connected & CC_LINEOUT_LABELLED_HEADPHONE)
951 strlcpy(ctl->id.name,
952 "Headphone Detect Autoswitch",
953 sizeof(ctl->id.name));
954 aoa_snd_ctl_add(ctl);
955 ctl = snd_ctl_new1(&lineout_detected,
956 ldev);
957 if (cc->connected & CC_LINEOUT_LABELLED_HEADPHONE)
958 strlcpy(ctl->id.name,
959 "Headphone Detected",
960 sizeof(ctl->id.name));
961 ldev->lineout_detected_ctrl = ctl;
962 aoa_snd_ctl_add(ctl);
963 }
964 }
965 cc++;
966 }
967 /* now update initial state */
968 if (ldev->have_headphone_detect)
969 layout_notify(&ldev->selfptr_headphone);
970 if (ldev->have_lineout_detect)
971 layout_notify(&ldev->selfptr_lineout);
972}
973
974static struct aoa_fabric layout_fabric = {
975 .name = "SoundByLayout",
976 .owner = THIS_MODULE,
977 .found_codec = layout_found_codec,
978 .remove_codec = layout_remove_codec,
979 .attached_codec = layout_attached_codec,
980};
981
982static int aoa_fabric_layout_probe(struct soundbus_dev *sdev)
983{
984 struct device_node *sound = NULL;
985 const unsigned int *id;
986 struct layout *layout = NULL;
987 struct layout_dev *ldev = NULL;
988 int err;
989
990 /* hm, currently we can only have one ... */
991 if (layout_device)
992 return -ENODEV;
993
994 /* by breaking out we keep a reference */
995 while ((sound = of_get_next_child(sdev->ofdev.dev.of_node, sound))) {
996 if (sound->type && strcasecmp(sound->type, "soundchip") == 0)
997 break;
998 }
999 if (!sound)
1000 return -ENODEV;
1001
1002 id = of_get_property(sound, "layout-id", NULL);
1003 if (id) {
1004 layout = find_layout_by_id(*id);
1005 } else {
1006 id = of_get_property(sound, "device-id", NULL);
1007 if (id)
1008 layout = find_layout_by_device(*id);
1009 }
1010
1011 if (!layout) {
1012 printk(KERN_ERR "snd-aoa-fabric-layout: unknown layout\n");
1013 goto outnodev;
1014 }
1015
1016 ldev = kzalloc(sizeof(struct layout_dev), GFP_KERNEL);
1017 if (!ldev)
1018 goto outnodev;
1019
1020 layout_device = ldev;
1021 ldev->sdev = sdev;
1022 ldev->sound = sound;
1023 ldev->layout = layout;
1024 ldev->gpio.node = sound->parent;
1025 switch (layout->layout_id) {
1026 case 0: /* anything with device_id, not layout_id */
1027 case 41: /* that unknown machine no one seems to have */
1028 case 51: /* PowerBook5,4 */
1029 case 58: /* Mac Mini */
1030 ldev->gpio.methods = ftr_gpio_methods;
1031 printk(KERN_DEBUG
1032 "snd-aoa-fabric-layout: Using direct GPIOs\n");
1033 break;
1034 default:
1035 ldev->gpio.methods = pmf_gpio_methods;
1036 printk(KERN_DEBUG
1037 "snd-aoa-fabric-layout: Using PMF GPIOs\n");
1038 }
1039 ldev->selfptr_headphone.ptr = ldev;
1040 ldev->selfptr_lineout.ptr = ldev;
1041 dev_set_drvdata(&sdev->ofdev.dev, ldev);
1042 list_add(&ldev->list, &layouts_list);
1043 layouts_list_items++;
1044
1045 /* assign these before registering ourselves, so
1046 * callbacks that are done during registration
1047 * already have the values */
1048 sdev->pcmid = ldev->layout->pcmid;
1049 if (ldev->layout->busname) {
1050 sdev->pcmname = ldev->layout->busname;
1051 } else {
1052 sdev->pcmname = "Master";
1053 }
1054
1055 ldev->gpio.methods->init(&ldev->gpio);
1056
1057 err = aoa_fabric_register(&layout_fabric, &sdev->ofdev.dev);
1058 if (err && err != -EALREADY) {
1059 printk(KERN_INFO "snd-aoa-fabric-layout: can't use,"
1060 " another fabric is active!\n");
1061 goto outlistdel;
1062 }
1063
1064 use_layout(layout);
1065 ldev->switch_on_headphone = 1;
1066 ldev->switch_on_lineout = 1;
1067 return 0;
1068 outlistdel:
1069 /* we won't be using these then... */
1070 ldev->gpio.methods->exit(&ldev->gpio);
1071 /* reset if we didn't use it */
1072 sdev->pcmname = NULL;
1073 sdev->pcmid = -1;
1074 list_del(&ldev->list);
1075 layouts_list_items--;
1076 kfree(ldev);
1077 outnodev:
1078 of_node_put(sound);
1079 layout_device = NULL;
1080 return -ENODEV;
1081}
1082
1083static int aoa_fabric_layout_remove(struct soundbus_dev *sdev)
1084{
1085 struct layout_dev *ldev = dev_get_drvdata(&sdev->ofdev.dev);
1086 int i;
1087
1088 for (i=0; i<MAX_CODECS_PER_BUS; i++) {
1089 if (ldev->codecs[i]) {
1090 aoa_fabric_unlink_codec(ldev->codecs[i]);
1091 }
1092 ldev->codecs[i] = NULL;
1093 }
1094 list_del(&ldev->list);
1095 layouts_list_items--;
1096 of_node_put(ldev->sound);
1097
1098 ldev->gpio.methods->set_notify(&ldev->gpio,
1099 AOA_NOTIFY_HEADPHONE,
1100 NULL,
1101 NULL);
1102 ldev->gpio.methods->set_notify(&ldev->gpio,
1103 AOA_NOTIFY_LINE_OUT,
1104 NULL,
1105 NULL);
1106
1107 ldev->gpio.methods->exit(&ldev->gpio);
1108 layout_device = NULL;
1109 kfree(ldev);
1110 sdev->pcmid = -1;
1111 sdev->pcmname = NULL;
1112 return 0;
1113}
1114
1115#ifdef CONFIG_PM
1116static int aoa_fabric_layout_suspend(struct soundbus_dev *sdev, pm_message_t state)
1117{
1118 struct layout_dev *ldev = dev_get_drvdata(&sdev->ofdev.dev);
1119
1120 if (ldev->gpio.methods && ldev->gpio.methods->all_amps_off)
1121 ldev->gpio.methods->all_amps_off(&ldev->gpio);
1122
1123 return 0;
1124}
1125
1126static int aoa_fabric_layout_resume(struct soundbus_dev *sdev)
1127{
1128 struct layout_dev *ldev = dev_get_drvdata(&sdev->ofdev.dev);
1129
1130 if (ldev->gpio.methods && ldev->gpio.methods->all_amps_off)
1131 ldev->gpio.methods->all_amps_restore(&ldev->gpio);
1132
1133 return 0;
1134}
1135#endif
1136
1137static struct soundbus_driver aoa_soundbus_driver = {
1138 .name = "snd_aoa_soundbus_drv",
1139 .owner = THIS_MODULE,
1140 .probe = aoa_fabric_layout_probe,
1141 .remove = aoa_fabric_layout_remove,
1142#ifdef CONFIG_PM
1143 .suspend = aoa_fabric_layout_suspend,
1144 .resume = aoa_fabric_layout_resume,
1145#endif
1146 .driver = {
1147 .owner = THIS_MODULE,
1148 }
1149};
1150
1151static int __init aoa_fabric_layout_init(void)
1152{
1153 int err;
1154
1155 err = soundbus_register_driver(&aoa_soundbus_driver);
1156 if (err)
1157 return err;
1158 return 0;
1159}
1160
1161static void __exit aoa_fabric_layout_exit(void)
1162{
1163 soundbus_unregister_driver(&aoa_soundbus_driver);
1164 aoa_fabric_unregister(&layout_fabric);
1165}
1166
1167module_init(aoa_fabric_layout_init);
1168module_exit(aoa_fabric_layout_exit);