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1// SPDX-License-Identifier: GPL-2.0-or-later
2/*
3 * Universal Interface for Intel High Definition Audio Codec
4 *
5 * Copyright (c) 2004 Takashi Iwai <tiwai@suse.de>
6 */
7
8#include <linux/init.h>
9#include <linux/delay.h>
10#include <linux/slab.h>
11#include <linux/mutex.h>
12#include <linux/module.h>
13#include <linux/pm.h>
14#include <linux/pm_runtime.h>
15#include <sound/core.h>
16#include <sound/hda_codec.h>
17#include <sound/asoundef.h>
18#include <sound/tlv.h>
19#include <sound/initval.h>
20#include <sound/jack.h>
21#include "hda_local.h"
22#include "hda_beep.h"
23#include "hda_jack.h"
24#include <sound/hda_hwdep.h>
25#include <sound/hda_component.h>
26
27#define codec_in_pm(codec) snd_hdac_is_in_pm(&codec->core)
28#define hda_codec_is_power_on(codec) snd_hdac_is_power_on(&codec->core)
29#define codec_has_epss(codec) \
30 ((codec)->core.power_caps & AC_PWRST_EPSS)
31#define codec_has_clkstop(codec) \
32 ((codec)->core.power_caps & AC_PWRST_CLKSTOP)
33
34/*
35 * Send and receive a verb - passed to exec_verb override for hdac_device
36 */
37static int codec_exec_verb(struct hdac_device *dev, unsigned int cmd,
38 unsigned int flags, unsigned int *res)
39{
40 struct hda_codec *codec = container_of(dev, struct hda_codec, core);
41 struct hda_bus *bus = codec->bus;
42 int err;
43
44 if (cmd == ~0)
45 return -1;
46
47 again:
48 snd_hda_power_up_pm(codec);
49 mutex_lock(&bus->core.cmd_mutex);
50 if (flags & HDA_RW_NO_RESPONSE_FALLBACK)
51 bus->no_response_fallback = 1;
52 err = snd_hdac_bus_exec_verb_unlocked(&bus->core, codec->core.addr,
53 cmd, res);
54 bus->no_response_fallback = 0;
55 mutex_unlock(&bus->core.cmd_mutex);
56 snd_hda_power_down_pm(codec);
57 if (!codec_in_pm(codec) && res && err == -EAGAIN) {
58 if (bus->response_reset) {
59 codec_dbg(codec,
60 "resetting BUS due to fatal communication error\n");
61 snd_hda_bus_reset(bus);
62 }
63 goto again;
64 }
65 /* clear reset-flag when the communication gets recovered */
66 if (!err || codec_in_pm(codec))
67 bus->response_reset = 0;
68 return err;
69}
70
71/**
72 * snd_hda_sequence_write - sequence writes
73 * @codec: the HDA codec
74 * @seq: VERB array to send
75 *
76 * Send the commands sequentially from the given array.
77 * The array must be terminated with NID=0.
78 */
79void snd_hda_sequence_write(struct hda_codec *codec, const struct hda_verb *seq)
80{
81 for (; seq->nid; seq++)
82 snd_hda_codec_write(codec, seq->nid, 0, seq->verb, seq->param);
83}
84EXPORT_SYMBOL_GPL(snd_hda_sequence_write);
85
86/* connection list element */
87struct hda_conn_list {
88 struct list_head list;
89 int len;
90 hda_nid_t nid;
91 hda_nid_t conns[];
92};
93
94/* look up the cached results */
95static struct hda_conn_list *
96lookup_conn_list(struct hda_codec *codec, hda_nid_t nid)
97{
98 struct hda_conn_list *p;
99 list_for_each_entry(p, &codec->conn_list, list) {
100 if (p->nid == nid)
101 return p;
102 }
103 return NULL;
104}
105
106static int add_conn_list(struct hda_codec *codec, hda_nid_t nid, int len,
107 const hda_nid_t *list)
108{
109 struct hda_conn_list *p;
110
111 p = kmalloc(struct_size(p, conns, len), GFP_KERNEL);
112 if (!p)
113 return -ENOMEM;
114 p->len = len;
115 p->nid = nid;
116 memcpy(p->conns, list, len * sizeof(hda_nid_t));
117 list_add(&p->list, &codec->conn_list);
118 return 0;
119}
120
121static void remove_conn_list(struct hda_codec *codec)
122{
123 while (!list_empty(&codec->conn_list)) {
124 struct hda_conn_list *p;
125 p = list_first_entry(&codec->conn_list, typeof(*p), list);
126 list_del(&p->list);
127 kfree(p);
128 }
129}
130
131/* read the connection and add to the cache */
132static int read_and_add_raw_conns(struct hda_codec *codec, hda_nid_t nid)
133{
134 hda_nid_t list[32];
135 hda_nid_t *result = list;
136 int len;
137
138 len = snd_hda_get_raw_connections(codec, nid, list, ARRAY_SIZE(list));
139 if (len == -ENOSPC) {
140 len = snd_hda_get_num_raw_conns(codec, nid);
141 result = kmalloc_array(len, sizeof(hda_nid_t), GFP_KERNEL);
142 if (!result)
143 return -ENOMEM;
144 len = snd_hda_get_raw_connections(codec, nid, result, len);
145 }
146 if (len >= 0)
147 len = snd_hda_override_conn_list(codec, nid, len, result);
148 if (result != list)
149 kfree(result);
150 return len;
151}
152
153/**
154 * snd_hda_get_conn_list - get connection list
155 * @codec: the HDA codec
156 * @nid: NID to parse
157 * @listp: the pointer to store NID list
158 *
159 * Parses the connection list of the given widget and stores the pointer
160 * to the list of NIDs.
161 *
162 * Returns the number of connections, or a negative error code.
163 *
164 * Note that the returned pointer isn't protected against the list
165 * modification. If snd_hda_override_conn_list() might be called
166 * concurrently, protect with a mutex appropriately.
167 */
168int snd_hda_get_conn_list(struct hda_codec *codec, hda_nid_t nid,
169 const hda_nid_t **listp)
170{
171 bool added = false;
172
173 for (;;) {
174 int err;
175 const struct hda_conn_list *p;
176
177 /* if the connection-list is already cached, read it */
178 p = lookup_conn_list(codec, nid);
179 if (p) {
180 if (listp)
181 *listp = p->conns;
182 return p->len;
183 }
184 if (snd_BUG_ON(added))
185 return -EINVAL;
186
187 err = read_and_add_raw_conns(codec, nid);
188 if (err < 0)
189 return err;
190 added = true;
191 }
192}
193EXPORT_SYMBOL_GPL(snd_hda_get_conn_list);
194
195/**
196 * snd_hda_get_connections - copy connection list
197 * @codec: the HDA codec
198 * @nid: NID to parse
199 * @conn_list: connection list array; when NULL, checks only the size
200 * @max_conns: max. number of connections to store
201 *
202 * Parses the connection list of the given widget and stores the list
203 * of NIDs.
204 *
205 * Returns the number of connections, or a negative error code.
206 */
207int snd_hda_get_connections(struct hda_codec *codec, hda_nid_t nid,
208 hda_nid_t *conn_list, int max_conns)
209{
210 const hda_nid_t *list;
211 int len = snd_hda_get_conn_list(codec, nid, &list);
212
213 if (len > 0 && conn_list) {
214 if (len > max_conns) {
215 codec_err(codec, "Too many connections %d for NID 0x%x\n",
216 len, nid);
217 return -EINVAL;
218 }
219 memcpy(conn_list, list, len * sizeof(hda_nid_t));
220 }
221
222 return len;
223}
224EXPORT_SYMBOL_GPL(snd_hda_get_connections);
225
226/**
227 * snd_hda_override_conn_list - add/modify the connection-list to cache
228 * @codec: the HDA codec
229 * @nid: NID to parse
230 * @len: number of connection list entries
231 * @list: the list of connection entries
232 *
233 * Add or modify the given connection-list to the cache. If the corresponding
234 * cache already exists, invalidate it and append a new one.
235 *
236 * Returns zero or a negative error code.
237 */
238int snd_hda_override_conn_list(struct hda_codec *codec, hda_nid_t nid, int len,
239 const hda_nid_t *list)
240{
241 struct hda_conn_list *p;
242
243 p = lookup_conn_list(codec, nid);
244 if (p) {
245 list_del(&p->list);
246 kfree(p);
247 }
248
249 return add_conn_list(codec, nid, len, list);
250}
251EXPORT_SYMBOL_GPL(snd_hda_override_conn_list);
252
253/**
254 * snd_hda_get_conn_index - get the connection index of the given NID
255 * @codec: the HDA codec
256 * @mux: NID containing the list
257 * @nid: NID to select
258 * @recursive: 1 when searching NID recursively, otherwise 0
259 *
260 * Parses the connection list of the widget @mux and checks whether the
261 * widget @nid is present. If it is, return the connection index.
262 * Otherwise it returns -1.
263 */
264int snd_hda_get_conn_index(struct hda_codec *codec, hda_nid_t mux,
265 hda_nid_t nid, int recursive)
266{
267 const hda_nid_t *conn;
268 int i, nums;
269
270 nums = snd_hda_get_conn_list(codec, mux, &conn);
271 for (i = 0; i < nums; i++)
272 if (conn[i] == nid)
273 return i;
274 if (!recursive)
275 return -1;
276 if (recursive > 10) {
277 codec_dbg(codec, "too deep connection for 0x%x\n", nid);
278 return -1;
279 }
280 recursive++;
281 for (i = 0; i < nums; i++) {
282 unsigned int type = get_wcaps_type(get_wcaps(codec, conn[i]));
283 if (type == AC_WID_PIN || type == AC_WID_AUD_OUT)
284 continue;
285 if (snd_hda_get_conn_index(codec, conn[i], nid, recursive) >= 0)
286 return i;
287 }
288 return -1;
289}
290EXPORT_SYMBOL_GPL(snd_hda_get_conn_index);
291
292/**
293 * snd_hda_get_num_devices - get DEVLIST_LEN parameter of the given widget
294 * @codec: the HDA codec
295 * @nid: NID of the pin to parse
296 *
297 * Get the device entry number on the given widget. This is a feature of
298 * DP MST audio. Each pin can have several device entries in it.
299 */
300unsigned int snd_hda_get_num_devices(struct hda_codec *codec, hda_nid_t nid)
301{
302 unsigned int wcaps = get_wcaps(codec, nid);
303 unsigned int parm;
304
305 if (!codec->dp_mst || !(wcaps & AC_WCAP_DIGITAL) ||
306 get_wcaps_type(wcaps) != AC_WID_PIN)
307 return 0;
308
309 parm = snd_hdac_read_parm_uncached(&codec->core, nid, AC_PAR_DEVLIST_LEN);
310 if (parm == -1)
311 parm = 0;
312 return parm & AC_DEV_LIST_LEN_MASK;
313}
314EXPORT_SYMBOL_GPL(snd_hda_get_num_devices);
315
316/**
317 * snd_hda_get_devices - copy device list without cache
318 * @codec: the HDA codec
319 * @nid: NID of the pin to parse
320 * @dev_list: device list array
321 * @max_devices: max. number of devices to store
322 *
323 * Copy the device list. This info is dynamic and so not cached.
324 * Currently called only from hda_proc.c, so not exported.
325 */
326int snd_hda_get_devices(struct hda_codec *codec, hda_nid_t nid,
327 u8 *dev_list, int max_devices)
328{
329 unsigned int parm;
330 int i, dev_len, devices;
331
332 parm = snd_hda_get_num_devices(codec, nid);
333 if (!parm) /* not multi-stream capable */
334 return 0;
335
336 dev_len = parm + 1;
337 dev_len = dev_len < max_devices ? dev_len : max_devices;
338
339 devices = 0;
340 while (devices < dev_len) {
341 if (snd_hdac_read(&codec->core, nid,
342 AC_VERB_GET_DEVICE_LIST, devices, &parm))
343 break; /* error */
344
345 for (i = 0; i < 8; i++) {
346 dev_list[devices] = (u8)parm;
347 parm >>= 4;
348 devices++;
349 if (devices >= dev_len)
350 break;
351 }
352 }
353 return devices;
354}
355
356/**
357 * snd_hda_get_dev_select - get device entry select on the pin
358 * @codec: the HDA codec
359 * @nid: NID of the pin to get device entry select
360 *
361 * Get the devcie entry select on the pin. Return the device entry
362 * id selected on the pin. Return 0 means the first device entry
363 * is selected or MST is not supported.
364 */
365int snd_hda_get_dev_select(struct hda_codec *codec, hda_nid_t nid)
366{
367 /* not support dp_mst will always return 0, using first dev_entry */
368 if (!codec->dp_mst)
369 return 0;
370
371 return snd_hda_codec_read(codec, nid, 0, AC_VERB_GET_DEVICE_SEL, 0);
372}
373EXPORT_SYMBOL_GPL(snd_hda_get_dev_select);
374
375/**
376 * snd_hda_set_dev_select - set device entry select on the pin
377 * @codec: the HDA codec
378 * @nid: NID of the pin to set device entry select
379 * @dev_id: device entry id to be set
380 *
381 * Set the device entry select on the pin nid.
382 */
383int snd_hda_set_dev_select(struct hda_codec *codec, hda_nid_t nid, int dev_id)
384{
385 int ret, num_devices;
386
387 /* not support dp_mst will always return 0, using first dev_entry */
388 if (!codec->dp_mst)
389 return 0;
390
391 /* AC_PAR_DEVLIST_LEN is 0 based. */
392 num_devices = snd_hda_get_num_devices(codec, nid) + 1;
393 /* If Device List Length is 0 (num_device = 1),
394 * the pin is not multi stream capable.
395 * Do nothing in this case.
396 */
397 if (num_devices == 1)
398 return 0;
399
400 /* Behavior of setting index being equal to or greater than
401 * Device List Length is not predictable
402 */
403 if (num_devices <= dev_id)
404 return -EINVAL;
405
406 ret = snd_hda_codec_write(codec, nid, 0,
407 AC_VERB_SET_DEVICE_SEL, dev_id);
408
409 return ret;
410}
411EXPORT_SYMBOL_GPL(snd_hda_set_dev_select);
412
413/*
414 * read widget caps for each widget and store in cache
415 */
416static int read_widget_caps(struct hda_codec *codec, hda_nid_t fg_node)
417{
418 int i;
419 hda_nid_t nid;
420
421 codec->wcaps = kmalloc_array(codec->core.num_nodes, 4, GFP_KERNEL);
422 if (!codec->wcaps)
423 return -ENOMEM;
424 nid = codec->core.start_nid;
425 for (i = 0; i < codec->core.num_nodes; i++, nid++)
426 codec->wcaps[i] = snd_hdac_read_parm_uncached(&codec->core,
427 nid, AC_PAR_AUDIO_WIDGET_CAP);
428 return 0;
429}
430
431/* read all pin default configurations and save codec->init_pins */
432static int read_pin_defaults(struct hda_codec *codec)
433{
434 hda_nid_t nid;
435
436 for_each_hda_codec_node(nid, codec) {
437 struct hda_pincfg *pin;
438 unsigned int wcaps = get_wcaps(codec, nid);
439 unsigned int wid_type = get_wcaps_type(wcaps);
440 if (wid_type != AC_WID_PIN)
441 continue;
442 pin = snd_array_new(&codec->init_pins);
443 if (!pin)
444 return -ENOMEM;
445 pin->nid = nid;
446 pin->cfg = snd_hda_codec_read(codec, nid, 0,
447 AC_VERB_GET_CONFIG_DEFAULT, 0);
448 /*
449 * all device entries are the same widget control so far
450 * fixme: if any codec is different, need fix here
451 */
452 pin->ctrl = snd_hda_codec_read(codec, nid, 0,
453 AC_VERB_GET_PIN_WIDGET_CONTROL,
454 0);
455 }
456 return 0;
457}
458
459/* look up the given pin config list and return the item matching with NID */
460static struct hda_pincfg *look_up_pincfg(struct hda_codec *codec,
461 struct snd_array *array,
462 hda_nid_t nid)
463{
464 struct hda_pincfg *pin;
465 int i;
466
467 snd_array_for_each(array, i, pin) {
468 if (pin->nid == nid)
469 return pin;
470 }
471 return NULL;
472}
473
474/* set the current pin config value for the given NID.
475 * the value is cached, and read via snd_hda_codec_get_pincfg()
476 */
477int snd_hda_add_pincfg(struct hda_codec *codec, struct snd_array *list,
478 hda_nid_t nid, unsigned int cfg)
479{
480 struct hda_pincfg *pin;
481
482 /* the check below may be invalid when pins are added by a fixup
483 * dynamically (e.g. via snd_hda_codec_update_widgets()), so disabled
484 * for now
485 */
486 /*
487 if (get_wcaps_type(get_wcaps(codec, nid)) != AC_WID_PIN)
488 return -EINVAL;
489 */
490
491 pin = look_up_pincfg(codec, list, nid);
492 if (!pin) {
493 pin = snd_array_new(list);
494 if (!pin)
495 return -ENOMEM;
496 pin->nid = nid;
497 }
498 pin->cfg = cfg;
499 return 0;
500}
501
502/**
503 * snd_hda_codec_set_pincfg - Override a pin default configuration
504 * @codec: the HDA codec
505 * @nid: NID to set the pin config
506 * @cfg: the pin default config value
507 *
508 * Override a pin default configuration value in the cache.
509 * This value can be read by snd_hda_codec_get_pincfg() in a higher
510 * priority than the real hardware value.
511 */
512int snd_hda_codec_set_pincfg(struct hda_codec *codec,
513 hda_nid_t nid, unsigned int cfg)
514{
515 return snd_hda_add_pincfg(codec, &codec->driver_pins, nid, cfg);
516}
517EXPORT_SYMBOL_GPL(snd_hda_codec_set_pincfg);
518
519/**
520 * snd_hda_codec_get_pincfg - Obtain a pin-default configuration
521 * @codec: the HDA codec
522 * @nid: NID to get the pin config
523 *
524 * Get the current pin config value of the given pin NID.
525 * If the pincfg value is cached or overridden via sysfs or driver,
526 * returns the cached value.
527 */
528unsigned int snd_hda_codec_get_pincfg(struct hda_codec *codec, hda_nid_t nid)
529{
530 struct hda_pincfg *pin;
531
532#ifdef CONFIG_SND_HDA_RECONFIG
533 {
534 unsigned int cfg = 0;
535 mutex_lock(&codec->user_mutex);
536 pin = look_up_pincfg(codec, &codec->user_pins, nid);
537 if (pin)
538 cfg = pin->cfg;
539 mutex_unlock(&codec->user_mutex);
540 if (cfg)
541 return cfg;
542 }
543#endif
544 pin = look_up_pincfg(codec, &codec->driver_pins, nid);
545 if (pin)
546 return pin->cfg;
547 pin = look_up_pincfg(codec, &codec->init_pins, nid);
548 if (pin)
549 return pin->cfg;
550 return 0;
551}
552EXPORT_SYMBOL_GPL(snd_hda_codec_get_pincfg);
553
554/**
555 * snd_hda_codec_set_pin_target - remember the current pinctl target value
556 * @codec: the HDA codec
557 * @nid: pin NID
558 * @val: assigned pinctl value
559 *
560 * This function stores the given value to a pinctl target value in the
561 * pincfg table. This isn't always as same as the actually written value
562 * but can be referred at any time via snd_hda_codec_get_pin_target().
563 */
564int snd_hda_codec_set_pin_target(struct hda_codec *codec, hda_nid_t nid,
565 unsigned int val)
566{
567 struct hda_pincfg *pin;
568
569 pin = look_up_pincfg(codec, &codec->init_pins, nid);
570 if (!pin)
571 return -EINVAL;
572 pin->target = val;
573 return 0;
574}
575EXPORT_SYMBOL_GPL(snd_hda_codec_set_pin_target);
576
577/**
578 * snd_hda_codec_get_pin_target - return the current pinctl target value
579 * @codec: the HDA codec
580 * @nid: pin NID
581 */
582int snd_hda_codec_get_pin_target(struct hda_codec *codec, hda_nid_t nid)
583{
584 struct hda_pincfg *pin;
585
586 pin = look_up_pincfg(codec, &codec->init_pins, nid);
587 if (!pin)
588 return 0;
589 return pin->target;
590}
591EXPORT_SYMBOL_GPL(snd_hda_codec_get_pin_target);
592
593/**
594 * snd_hda_shutup_pins - Shut up all pins
595 * @codec: the HDA codec
596 *
597 * Clear all pin controls to shup up before suspend for avoiding click noise.
598 * The controls aren't cached so that they can be resumed properly.
599 */
600void snd_hda_shutup_pins(struct hda_codec *codec)
601{
602 const struct hda_pincfg *pin;
603 int i;
604
605 /* don't shut up pins when unloading the driver; otherwise it breaks
606 * the default pin setup at the next load of the driver
607 */
608 if (codec->bus->shutdown)
609 return;
610 snd_array_for_each(&codec->init_pins, i, pin) {
611 /* use read here for syncing after issuing each verb */
612 snd_hda_codec_read(codec, pin->nid, 0,
613 AC_VERB_SET_PIN_WIDGET_CONTROL, 0);
614 }
615 codec->pins_shutup = 1;
616}
617EXPORT_SYMBOL_GPL(snd_hda_shutup_pins);
618
619#ifdef CONFIG_PM
620/* Restore the pin controls cleared previously via snd_hda_shutup_pins() */
621static void restore_shutup_pins(struct hda_codec *codec)
622{
623 const struct hda_pincfg *pin;
624 int i;
625
626 if (!codec->pins_shutup)
627 return;
628 if (codec->bus->shutdown)
629 return;
630 snd_array_for_each(&codec->init_pins, i, pin) {
631 snd_hda_codec_write(codec, pin->nid, 0,
632 AC_VERB_SET_PIN_WIDGET_CONTROL,
633 pin->ctrl);
634 }
635 codec->pins_shutup = 0;
636}
637#endif
638
639static void hda_jackpoll_work(struct work_struct *work)
640{
641 struct hda_codec *codec =
642 container_of(work, struct hda_codec, jackpoll_work.work);
643
644 /* for non-polling trigger: we need nothing if already powered on */
645 if (!codec->jackpoll_interval && snd_hdac_is_power_on(&codec->core))
646 return;
647
648 /* the power-up/down sequence triggers the runtime resume */
649 snd_hda_power_up_pm(codec);
650 /* update jacks manually if polling is required, too */
651 if (codec->jackpoll_interval) {
652 snd_hda_jack_set_dirty_all(codec);
653 snd_hda_jack_poll_all(codec);
654 }
655 snd_hda_power_down_pm(codec);
656
657 if (!codec->jackpoll_interval)
658 return;
659
660 schedule_delayed_work(&codec->jackpoll_work,
661 codec->jackpoll_interval);
662}
663
664/* release all pincfg lists */
665static void free_init_pincfgs(struct hda_codec *codec)
666{
667 snd_array_free(&codec->driver_pins);
668#ifdef CONFIG_SND_HDA_RECONFIG
669 snd_array_free(&codec->user_pins);
670#endif
671 snd_array_free(&codec->init_pins);
672}
673
674/*
675 * audio-converter setup caches
676 */
677struct hda_cvt_setup {
678 hda_nid_t nid;
679 u8 stream_tag;
680 u8 channel_id;
681 u16 format_id;
682 unsigned char active; /* cvt is currently used */
683 unsigned char dirty; /* setups should be cleared */
684};
685
686/* get or create a cache entry for the given audio converter NID */
687static struct hda_cvt_setup *
688get_hda_cvt_setup(struct hda_codec *codec, hda_nid_t nid)
689{
690 struct hda_cvt_setup *p;
691 int i;
692
693 snd_array_for_each(&codec->cvt_setups, i, p) {
694 if (p->nid == nid)
695 return p;
696 }
697 p = snd_array_new(&codec->cvt_setups);
698 if (p)
699 p->nid = nid;
700 return p;
701}
702
703/*
704 * PCM device
705 */
706static void release_pcm(struct kref *kref)
707{
708 struct hda_pcm *pcm = container_of(kref, struct hda_pcm, kref);
709
710 if (pcm->pcm)
711 snd_device_free(pcm->codec->card, pcm->pcm);
712 clear_bit(pcm->device, pcm->codec->bus->pcm_dev_bits);
713 kfree(pcm->name);
714 kfree(pcm);
715}
716
717void snd_hda_codec_pcm_put(struct hda_pcm *pcm)
718{
719 kref_put(&pcm->kref, release_pcm);
720}
721EXPORT_SYMBOL_GPL(snd_hda_codec_pcm_put);
722
723struct hda_pcm *snd_hda_codec_pcm_new(struct hda_codec *codec,
724 const char *fmt, ...)
725{
726 struct hda_pcm *pcm;
727 va_list args;
728
729 pcm = kzalloc(sizeof(*pcm), GFP_KERNEL);
730 if (!pcm)
731 return NULL;
732
733 pcm->codec = codec;
734 kref_init(&pcm->kref);
735 va_start(args, fmt);
736 pcm->name = kvasprintf(GFP_KERNEL, fmt, args);
737 va_end(args);
738 if (!pcm->name) {
739 kfree(pcm);
740 return NULL;
741 }
742
743 list_add_tail(&pcm->list, &codec->pcm_list_head);
744 return pcm;
745}
746EXPORT_SYMBOL_GPL(snd_hda_codec_pcm_new);
747
748/*
749 * codec destructor
750 */
751static void codec_release_pcms(struct hda_codec *codec)
752{
753 struct hda_pcm *pcm, *n;
754
755 list_for_each_entry_safe(pcm, n, &codec->pcm_list_head, list) {
756 list_del_init(&pcm->list);
757 if (pcm->pcm)
758 snd_device_disconnect(codec->card, pcm->pcm);
759 snd_hda_codec_pcm_put(pcm);
760 }
761}
762
763void snd_hda_codec_cleanup_for_unbind(struct hda_codec *codec)
764{
765 if (codec->registered) {
766 /* pm_runtime_put() is called in snd_hdac_device_exit() */
767 pm_runtime_get_noresume(hda_codec_dev(codec));
768 pm_runtime_disable(hda_codec_dev(codec));
769 codec->registered = 0;
770 }
771
772 cancel_delayed_work_sync(&codec->jackpoll_work);
773 if (!codec->in_freeing)
774 snd_hda_ctls_clear(codec);
775 codec_release_pcms(codec);
776 snd_hda_detach_beep_device(codec);
777 memset(&codec->patch_ops, 0, sizeof(codec->patch_ops));
778 snd_hda_jack_tbl_clear(codec);
779 codec->proc_widget_hook = NULL;
780 codec->spec = NULL;
781
782 /* free only driver_pins so that init_pins + user_pins are restored */
783 snd_array_free(&codec->driver_pins);
784 snd_array_free(&codec->cvt_setups);
785 snd_array_free(&codec->spdif_out);
786 snd_array_free(&codec->verbs);
787 codec->preset = NULL;
788 codec->follower_dig_outs = NULL;
789 codec->spdif_status_reset = 0;
790 snd_array_free(&codec->mixers);
791 snd_array_free(&codec->nids);
792 remove_conn_list(codec);
793 snd_hdac_regmap_exit(&codec->core);
794}
795EXPORT_SYMBOL_GPL(snd_hda_codec_cleanup_for_unbind);
796
797static unsigned int hda_set_power_state(struct hda_codec *codec,
798 unsigned int power_state);
799
800/* enable/disable display power per codec */
801static void codec_display_power(struct hda_codec *codec, bool enable)
802{
803 if (codec->display_power_control)
804 snd_hdac_display_power(&codec->bus->core, codec->addr, enable);
805}
806
807/* also called from hda_bind.c */
808void snd_hda_codec_register(struct hda_codec *codec)
809{
810 if (codec->registered)
811 return;
812 if (device_is_registered(hda_codec_dev(codec))) {
813 codec_display_power(codec, true);
814 pm_runtime_enable(hda_codec_dev(codec));
815 /* it was powered up in snd_hda_codec_new(), now all done */
816 snd_hda_power_down(codec);
817 codec->registered = 1;
818 }
819}
820
821static int snd_hda_codec_dev_register(struct snd_device *device)
822{
823 snd_hda_codec_register(device->device_data);
824 return 0;
825}
826
827static int snd_hda_codec_dev_free(struct snd_device *device)
828{
829 struct hda_codec *codec = device->device_data;
830
831 codec->in_freeing = 1;
832 /*
833 * snd_hda_codec_device_new() is used by legacy HDA and ASoC driver.
834 * We can't unregister ASoC device since it will be unregistered in
835 * snd_hdac_ext_bus_device_remove().
836 */
837 if (codec->core.type == HDA_DEV_LEGACY)
838 snd_hdac_device_unregister(&codec->core);
839 codec_display_power(codec, false);
840
841 /*
842 * In the case of ASoC HD-audio bus, the device refcount is released in
843 * snd_hdac_ext_bus_device_remove() explicitly.
844 */
845 if (codec->core.type == HDA_DEV_LEGACY)
846 put_device(hda_codec_dev(codec));
847
848 return 0;
849}
850
851static void snd_hda_codec_dev_release(struct device *dev)
852{
853 struct hda_codec *codec = dev_to_hda_codec(dev);
854
855 free_init_pincfgs(codec);
856 snd_hdac_device_exit(&codec->core);
857 snd_hda_sysfs_clear(codec);
858 kfree(codec->modelname);
859 kfree(codec->wcaps);
860
861 /*
862 * In the case of ASoC HD-audio, hda_codec is device managed.
863 * It will be freed when the ASoC device is removed.
864 */
865 if (codec->core.type == HDA_DEV_LEGACY)
866 kfree(codec);
867}
868
869#define DEV_NAME_LEN 31
870
871static int snd_hda_codec_device_init(struct hda_bus *bus, struct snd_card *card,
872 unsigned int codec_addr, struct hda_codec **codecp)
873{
874 char name[DEV_NAME_LEN];
875 struct hda_codec *codec;
876 int err;
877
878 dev_dbg(card->dev, "%s: entry\n", __func__);
879
880 if (snd_BUG_ON(!bus))
881 return -EINVAL;
882 if (snd_BUG_ON(codec_addr > HDA_MAX_CODEC_ADDRESS))
883 return -EINVAL;
884
885 codec = kzalloc(sizeof(*codec), GFP_KERNEL);
886 if (!codec)
887 return -ENOMEM;
888
889 sprintf(name, "hdaudioC%dD%d", card->number, codec_addr);
890 err = snd_hdac_device_init(&codec->core, &bus->core, name, codec_addr);
891 if (err < 0) {
892 kfree(codec);
893 return err;
894 }
895
896 codec->core.type = HDA_DEV_LEGACY;
897 *codecp = codec;
898
899 return err;
900}
901
902/**
903 * snd_hda_codec_new - create a HDA codec
904 * @bus: the bus to assign
905 * @card: card for this codec
906 * @codec_addr: the codec address
907 * @codecp: the pointer to store the generated codec
908 *
909 * Returns 0 if successful, or a negative error code.
910 */
911int snd_hda_codec_new(struct hda_bus *bus, struct snd_card *card,
912 unsigned int codec_addr, struct hda_codec **codecp)
913{
914 int ret;
915
916 ret = snd_hda_codec_device_init(bus, card, codec_addr, codecp);
917 if (ret < 0)
918 return ret;
919
920 return snd_hda_codec_device_new(bus, card, codec_addr, *codecp);
921}
922EXPORT_SYMBOL_GPL(snd_hda_codec_new);
923
924int snd_hda_codec_device_new(struct hda_bus *bus, struct snd_card *card,
925 unsigned int codec_addr, struct hda_codec *codec)
926{
927 char component[31];
928 hda_nid_t fg;
929 int err;
930 static const struct snd_device_ops dev_ops = {
931 .dev_register = snd_hda_codec_dev_register,
932 .dev_free = snd_hda_codec_dev_free,
933 };
934
935 dev_dbg(card->dev, "%s: entry\n", __func__);
936
937 if (snd_BUG_ON(!bus))
938 return -EINVAL;
939 if (snd_BUG_ON(codec_addr > HDA_MAX_CODEC_ADDRESS))
940 return -EINVAL;
941
942 codec->core.dev.release = snd_hda_codec_dev_release;
943 codec->core.exec_verb = codec_exec_verb;
944
945 codec->bus = bus;
946 codec->card = card;
947 codec->addr = codec_addr;
948 mutex_init(&codec->spdif_mutex);
949 mutex_init(&codec->control_mutex);
950 snd_array_init(&codec->mixers, sizeof(struct hda_nid_item), 32);
951 snd_array_init(&codec->nids, sizeof(struct hda_nid_item), 32);
952 snd_array_init(&codec->init_pins, sizeof(struct hda_pincfg), 16);
953 snd_array_init(&codec->driver_pins, sizeof(struct hda_pincfg), 16);
954 snd_array_init(&codec->cvt_setups, sizeof(struct hda_cvt_setup), 8);
955 snd_array_init(&codec->spdif_out, sizeof(struct hda_spdif_out), 16);
956 snd_array_init(&codec->jacktbl, sizeof(struct hda_jack_tbl), 16);
957 snd_array_init(&codec->verbs, sizeof(struct hda_verb *), 8);
958 INIT_LIST_HEAD(&codec->conn_list);
959 INIT_LIST_HEAD(&codec->pcm_list_head);
960
961 INIT_DELAYED_WORK(&codec->jackpoll_work, hda_jackpoll_work);
962 codec->depop_delay = -1;
963 codec->fixup_id = HDA_FIXUP_ID_NOT_SET;
964
965#ifdef CONFIG_PM
966 codec->power_jiffies = jiffies;
967#endif
968
969 snd_hda_sysfs_init(codec);
970
971 if (codec->bus->modelname) {
972 codec->modelname = kstrdup(codec->bus->modelname, GFP_KERNEL);
973 if (!codec->modelname) {
974 err = -ENOMEM;
975 goto error;
976 }
977 }
978
979 fg = codec->core.afg ? codec->core.afg : codec->core.mfg;
980 err = read_widget_caps(codec, fg);
981 if (err < 0)
982 goto error;
983 err = read_pin_defaults(codec);
984 if (err < 0)
985 goto error;
986
987 /* power-up all before initialization */
988 hda_set_power_state(codec, AC_PWRST_D0);
989 codec->core.dev.power.power_state = PMSG_ON;
990
991 snd_hda_codec_proc_new(codec);
992
993 snd_hda_create_hwdep(codec);
994
995 sprintf(component, "HDA:%08x,%08x,%08x", codec->core.vendor_id,
996 codec->core.subsystem_id, codec->core.revision_id);
997 snd_component_add(card, component);
998
999 err = snd_device_new(card, SNDRV_DEV_CODEC, codec, &dev_ops);
1000 if (err < 0)
1001 goto error;
1002
1003 return 0;
1004
1005 error:
1006 put_device(hda_codec_dev(codec));
1007 return err;
1008}
1009EXPORT_SYMBOL_GPL(snd_hda_codec_device_new);
1010
1011/**
1012 * snd_hda_codec_update_widgets - Refresh widget caps and pin defaults
1013 * @codec: the HDA codec
1014 *
1015 * Forcibly refresh the all widget caps and the init pin configurations of
1016 * the given codec.
1017 */
1018int snd_hda_codec_update_widgets(struct hda_codec *codec)
1019{
1020 hda_nid_t fg;
1021 int err;
1022
1023 err = snd_hdac_refresh_widgets(&codec->core);
1024 if (err < 0)
1025 return err;
1026
1027 /* Assume the function group node does not change,
1028 * only the widget nodes may change.
1029 */
1030 kfree(codec->wcaps);
1031 fg = codec->core.afg ? codec->core.afg : codec->core.mfg;
1032 err = read_widget_caps(codec, fg);
1033 if (err < 0)
1034 return err;
1035
1036 snd_array_free(&codec->init_pins);
1037 err = read_pin_defaults(codec);
1038
1039 return err;
1040}
1041EXPORT_SYMBOL_GPL(snd_hda_codec_update_widgets);
1042
1043/* update the stream-id if changed */
1044static void update_pcm_stream_id(struct hda_codec *codec,
1045 struct hda_cvt_setup *p, hda_nid_t nid,
1046 u32 stream_tag, int channel_id)
1047{
1048 unsigned int oldval, newval;
1049
1050 if (p->stream_tag != stream_tag || p->channel_id != channel_id) {
1051 oldval = snd_hda_codec_read(codec, nid, 0, AC_VERB_GET_CONV, 0);
1052 newval = (stream_tag << 4) | channel_id;
1053 if (oldval != newval)
1054 snd_hda_codec_write(codec, nid, 0,
1055 AC_VERB_SET_CHANNEL_STREAMID,
1056 newval);
1057 p->stream_tag = stream_tag;
1058 p->channel_id = channel_id;
1059 }
1060}
1061
1062/* update the format-id if changed */
1063static void update_pcm_format(struct hda_codec *codec, struct hda_cvt_setup *p,
1064 hda_nid_t nid, int format)
1065{
1066 unsigned int oldval;
1067
1068 if (p->format_id != format) {
1069 oldval = snd_hda_codec_read(codec, nid, 0,
1070 AC_VERB_GET_STREAM_FORMAT, 0);
1071 if (oldval != format) {
1072 msleep(1);
1073 snd_hda_codec_write(codec, nid, 0,
1074 AC_VERB_SET_STREAM_FORMAT,
1075 format);
1076 }
1077 p->format_id = format;
1078 }
1079}
1080
1081/**
1082 * snd_hda_codec_setup_stream - set up the codec for streaming
1083 * @codec: the CODEC to set up
1084 * @nid: the NID to set up
1085 * @stream_tag: stream tag to pass, it's between 0x1 and 0xf.
1086 * @channel_id: channel id to pass, zero based.
1087 * @format: stream format.
1088 */
1089void snd_hda_codec_setup_stream(struct hda_codec *codec, hda_nid_t nid,
1090 u32 stream_tag,
1091 int channel_id, int format)
1092{
1093 struct hda_codec *c;
1094 struct hda_cvt_setup *p;
1095 int type;
1096 int i;
1097
1098 if (!nid)
1099 return;
1100
1101 codec_dbg(codec,
1102 "hda_codec_setup_stream: NID=0x%x, stream=0x%x, channel=%d, format=0x%x\n",
1103 nid, stream_tag, channel_id, format);
1104 p = get_hda_cvt_setup(codec, nid);
1105 if (!p)
1106 return;
1107
1108 if (codec->patch_ops.stream_pm)
1109 codec->patch_ops.stream_pm(codec, nid, true);
1110 if (codec->pcm_format_first)
1111 update_pcm_format(codec, p, nid, format);
1112 update_pcm_stream_id(codec, p, nid, stream_tag, channel_id);
1113 if (!codec->pcm_format_first)
1114 update_pcm_format(codec, p, nid, format);
1115
1116 p->active = 1;
1117 p->dirty = 0;
1118
1119 /* make other inactive cvts with the same stream-tag dirty */
1120 type = get_wcaps_type(get_wcaps(codec, nid));
1121 list_for_each_codec(c, codec->bus) {
1122 snd_array_for_each(&c->cvt_setups, i, p) {
1123 if (!p->active && p->stream_tag == stream_tag &&
1124 get_wcaps_type(get_wcaps(c, p->nid)) == type)
1125 p->dirty = 1;
1126 }
1127 }
1128}
1129EXPORT_SYMBOL_GPL(snd_hda_codec_setup_stream);
1130
1131static void really_cleanup_stream(struct hda_codec *codec,
1132 struct hda_cvt_setup *q);
1133
1134/**
1135 * __snd_hda_codec_cleanup_stream - clean up the codec for closing
1136 * @codec: the CODEC to clean up
1137 * @nid: the NID to clean up
1138 * @do_now: really clean up the stream instead of clearing the active flag
1139 */
1140void __snd_hda_codec_cleanup_stream(struct hda_codec *codec, hda_nid_t nid,
1141 int do_now)
1142{
1143 struct hda_cvt_setup *p;
1144
1145 if (!nid)
1146 return;
1147
1148 if (codec->no_sticky_stream)
1149 do_now = 1;
1150
1151 codec_dbg(codec, "hda_codec_cleanup_stream: NID=0x%x\n", nid);
1152 p = get_hda_cvt_setup(codec, nid);
1153 if (p) {
1154 /* here we just clear the active flag when do_now isn't set;
1155 * actual clean-ups will be done later in
1156 * purify_inactive_streams() called from snd_hda_codec_prpapre()
1157 */
1158 if (do_now)
1159 really_cleanup_stream(codec, p);
1160 else
1161 p->active = 0;
1162 }
1163}
1164EXPORT_SYMBOL_GPL(__snd_hda_codec_cleanup_stream);
1165
1166static void really_cleanup_stream(struct hda_codec *codec,
1167 struct hda_cvt_setup *q)
1168{
1169 hda_nid_t nid = q->nid;
1170 if (q->stream_tag || q->channel_id)
1171 snd_hda_codec_write(codec, nid, 0, AC_VERB_SET_CHANNEL_STREAMID, 0);
1172 if (q->format_id)
1173 snd_hda_codec_write(codec, nid, 0, AC_VERB_SET_STREAM_FORMAT, 0
1174);
1175 memset(q, 0, sizeof(*q));
1176 q->nid = nid;
1177 if (codec->patch_ops.stream_pm)
1178 codec->patch_ops.stream_pm(codec, nid, false);
1179}
1180
1181/* clean up the all conflicting obsolete streams */
1182static void purify_inactive_streams(struct hda_codec *codec)
1183{
1184 struct hda_codec *c;
1185 struct hda_cvt_setup *p;
1186 int i;
1187
1188 list_for_each_codec(c, codec->bus) {
1189 snd_array_for_each(&c->cvt_setups, i, p) {
1190 if (p->dirty)
1191 really_cleanup_stream(c, p);
1192 }
1193 }
1194}
1195
1196#ifdef CONFIG_PM
1197/* clean up all streams; called from suspend */
1198static void hda_cleanup_all_streams(struct hda_codec *codec)
1199{
1200 struct hda_cvt_setup *p;
1201 int i;
1202
1203 snd_array_for_each(&codec->cvt_setups, i, p) {
1204 if (p->stream_tag)
1205 really_cleanup_stream(codec, p);
1206 }
1207}
1208#endif
1209
1210/*
1211 * amp access functions
1212 */
1213
1214/**
1215 * query_amp_caps - query AMP capabilities
1216 * @codec: the HD-auio codec
1217 * @nid: the NID to query
1218 * @direction: either #HDA_INPUT or #HDA_OUTPUT
1219 *
1220 * Query AMP capabilities for the given widget and direction.
1221 * Returns the obtained capability bits.
1222 *
1223 * When cap bits have been already read, this doesn't read again but
1224 * returns the cached value.
1225 */
1226u32 query_amp_caps(struct hda_codec *codec, hda_nid_t nid, int direction)
1227{
1228 if (!(get_wcaps(codec, nid) & AC_WCAP_AMP_OVRD))
1229 nid = codec->core.afg;
1230 return snd_hda_param_read(codec, nid,
1231 direction == HDA_OUTPUT ?
1232 AC_PAR_AMP_OUT_CAP : AC_PAR_AMP_IN_CAP);
1233}
1234EXPORT_SYMBOL_GPL(query_amp_caps);
1235
1236/**
1237 * snd_hda_check_amp_caps - query AMP capabilities
1238 * @codec: the HD-audio codec
1239 * @nid: the NID to query
1240 * @dir: either #HDA_INPUT or #HDA_OUTPUT
1241 * @bits: bit mask to check the result
1242 *
1243 * Check whether the widget has the given amp capability for the direction.
1244 */
1245bool snd_hda_check_amp_caps(struct hda_codec *codec, hda_nid_t nid,
1246 int dir, unsigned int bits)
1247{
1248 if (!nid)
1249 return false;
1250 if (get_wcaps(codec, nid) & (1 << (dir + 1)))
1251 if (query_amp_caps(codec, nid, dir) & bits)
1252 return true;
1253 return false;
1254}
1255EXPORT_SYMBOL_GPL(snd_hda_check_amp_caps);
1256
1257/**
1258 * snd_hda_override_amp_caps - Override the AMP capabilities
1259 * @codec: the CODEC to clean up
1260 * @nid: the NID to clean up
1261 * @dir: either #HDA_INPUT or #HDA_OUTPUT
1262 * @caps: the capability bits to set
1263 *
1264 * Override the cached AMP caps bits value by the given one.
1265 * This function is useful if the driver needs to adjust the AMP ranges,
1266 * e.g. limit to 0dB, etc.
1267 *
1268 * Returns zero if successful or a negative error code.
1269 */
1270int snd_hda_override_amp_caps(struct hda_codec *codec, hda_nid_t nid, int dir,
1271 unsigned int caps)
1272{
1273 unsigned int parm;
1274
1275 snd_hda_override_wcaps(codec, nid,
1276 get_wcaps(codec, nid) | AC_WCAP_AMP_OVRD);
1277 parm = dir == HDA_OUTPUT ? AC_PAR_AMP_OUT_CAP : AC_PAR_AMP_IN_CAP;
1278 return snd_hdac_override_parm(&codec->core, nid, parm, caps);
1279}
1280EXPORT_SYMBOL_GPL(snd_hda_override_amp_caps);
1281
1282static unsigned int encode_amp(struct hda_codec *codec, hda_nid_t nid,
1283 int ch, int dir, int idx)
1284{
1285 unsigned int cmd = snd_hdac_regmap_encode_amp(nid, ch, dir, idx);
1286
1287 /* enable fake mute if no h/w mute but min=mute */
1288 if ((query_amp_caps(codec, nid, dir) &
1289 (AC_AMPCAP_MUTE | AC_AMPCAP_MIN_MUTE)) == AC_AMPCAP_MIN_MUTE)
1290 cmd |= AC_AMP_FAKE_MUTE;
1291 return cmd;
1292}
1293
1294/**
1295 * snd_hda_codec_amp_update - update the AMP mono value
1296 * @codec: HD-audio codec
1297 * @nid: NID to read the AMP value
1298 * @ch: channel to update (0 or 1)
1299 * @dir: #HDA_INPUT or #HDA_OUTPUT
1300 * @idx: the index value (only for input direction)
1301 * @mask: bit mask to set
1302 * @val: the bits value to set
1303 *
1304 * Update the AMP values for the given channel, direction and index.
1305 */
1306int snd_hda_codec_amp_update(struct hda_codec *codec, hda_nid_t nid,
1307 int ch, int dir, int idx, int mask, int val)
1308{
1309 unsigned int cmd = encode_amp(codec, nid, ch, dir, idx);
1310
1311 return snd_hdac_regmap_update_raw(&codec->core, cmd, mask, val);
1312}
1313EXPORT_SYMBOL_GPL(snd_hda_codec_amp_update);
1314
1315/**
1316 * snd_hda_codec_amp_stereo - update the AMP stereo values
1317 * @codec: HD-audio codec
1318 * @nid: NID to read the AMP value
1319 * @direction: #HDA_INPUT or #HDA_OUTPUT
1320 * @idx: the index value (only for input direction)
1321 * @mask: bit mask to set
1322 * @val: the bits value to set
1323 *
1324 * Update the AMP values like snd_hda_codec_amp_update(), but for a
1325 * stereo widget with the same mask and value.
1326 */
1327int snd_hda_codec_amp_stereo(struct hda_codec *codec, hda_nid_t nid,
1328 int direction, int idx, int mask, int val)
1329{
1330 int ch, ret = 0;
1331
1332 if (snd_BUG_ON(mask & ~0xff))
1333 mask &= 0xff;
1334 for (ch = 0; ch < 2; ch++)
1335 ret |= snd_hda_codec_amp_update(codec, nid, ch, direction,
1336 idx, mask, val);
1337 return ret;
1338}
1339EXPORT_SYMBOL_GPL(snd_hda_codec_amp_stereo);
1340
1341/**
1342 * snd_hda_codec_amp_init - initialize the AMP value
1343 * @codec: the HDA codec
1344 * @nid: NID to read the AMP value
1345 * @ch: channel (left=0 or right=1)
1346 * @dir: #HDA_INPUT or #HDA_OUTPUT
1347 * @idx: the index value (only for input direction)
1348 * @mask: bit mask to set
1349 * @val: the bits value to set
1350 *
1351 * Works like snd_hda_codec_amp_update() but it writes the value only at
1352 * the first access. If the amp was already initialized / updated beforehand,
1353 * this does nothing.
1354 */
1355int snd_hda_codec_amp_init(struct hda_codec *codec, hda_nid_t nid, int ch,
1356 int dir, int idx, int mask, int val)
1357{
1358 unsigned int cmd = encode_amp(codec, nid, ch, dir, idx);
1359
1360 if (!codec->core.regmap)
1361 return -EINVAL;
1362 return snd_hdac_regmap_update_raw_once(&codec->core, cmd, mask, val);
1363}
1364EXPORT_SYMBOL_GPL(snd_hda_codec_amp_init);
1365
1366/**
1367 * snd_hda_codec_amp_init_stereo - initialize the stereo AMP value
1368 * @codec: the HDA codec
1369 * @nid: NID to read the AMP value
1370 * @dir: #HDA_INPUT or #HDA_OUTPUT
1371 * @idx: the index value (only for input direction)
1372 * @mask: bit mask to set
1373 * @val: the bits value to set
1374 *
1375 * Call snd_hda_codec_amp_init() for both stereo channels.
1376 */
1377int snd_hda_codec_amp_init_stereo(struct hda_codec *codec, hda_nid_t nid,
1378 int dir, int idx, int mask, int val)
1379{
1380 int ch, ret = 0;
1381
1382 if (snd_BUG_ON(mask & ~0xff))
1383 mask &= 0xff;
1384 for (ch = 0; ch < 2; ch++)
1385 ret |= snd_hda_codec_amp_init(codec, nid, ch, dir,
1386 idx, mask, val);
1387 return ret;
1388}
1389EXPORT_SYMBOL_GPL(snd_hda_codec_amp_init_stereo);
1390
1391static u32 get_amp_max_value(struct hda_codec *codec, hda_nid_t nid, int dir,
1392 unsigned int ofs)
1393{
1394 u32 caps = query_amp_caps(codec, nid, dir);
1395 /* get num steps */
1396 caps = (caps & AC_AMPCAP_NUM_STEPS) >> AC_AMPCAP_NUM_STEPS_SHIFT;
1397 if (ofs < caps)
1398 caps -= ofs;
1399 return caps;
1400}
1401
1402/**
1403 * snd_hda_mixer_amp_volume_info - Info callback for a standard AMP mixer
1404 * @kcontrol: referred ctl element
1405 * @uinfo: pointer to get/store the data
1406 *
1407 * The control element is supposed to have the private_value field
1408 * set up via HDA_COMPOSE_AMP_VAL*() or related macros.
1409 */
1410int snd_hda_mixer_amp_volume_info(struct snd_kcontrol *kcontrol,
1411 struct snd_ctl_elem_info *uinfo)
1412{
1413 struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
1414 u16 nid = get_amp_nid(kcontrol);
1415 u8 chs = get_amp_channels(kcontrol);
1416 int dir = get_amp_direction(kcontrol);
1417 unsigned int ofs = get_amp_offset(kcontrol);
1418
1419 uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
1420 uinfo->count = chs == 3 ? 2 : 1;
1421 uinfo->value.integer.min = 0;
1422 uinfo->value.integer.max = get_amp_max_value(codec, nid, dir, ofs);
1423 if (!uinfo->value.integer.max) {
1424 codec_warn(codec,
1425 "num_steps = 0 for NID=0x%x (ctl = %s)\n",
1426 nid, kcontrol->id.name);
1427 return -EINVAL;
1428 }
1429 return 0;
1430}
1431EXPORT_SYMBOL_GPL(snd_hda_mixer_amp_volume_info);
1432
1433
1434static inline unsigned int
1435read_amp_value(struct hda_codec *codec, hda_nid_t nid,
1436 int ch, int dir, int idx, unsigned int ofs)
1437{
1438 unsigned int val;
1439 val = snd_hda_codec_amp_read(codec, nid, ch, dir, idx);
1440 val &= HDA_AMP_VOLMASK;
1441 if (val >= ofs)
1442 val -= ofs;
1443 else
1444 val = 0;
1445 return val;
1446}
1447
1448static inline int
1449update_amp_value(struct hda_codec *codec, hda_nid_t nid,
1450 int ch, int dir, int idx, unsigned int ofs,
1451 unsigned int val)
1452{
1453 unsigned int maxval;
1454
1455 if (val > 0)
1456 val += ofs;
1457 /* ofs = 0: raw max value */
1458 maxval = get_amp_max_value(codec, nid, dir, 0);
1459 if (val > maxval)
1460 val = maxval;
1461 return snd_hda_codec_amp_update(codec, nid, ch, dir, idx,
1462 HDA_AMP_VOLMASK, val);
1463}
1464
1465/**
1466 * snd_hda_mixer_amp_volume_get - Get callback for a standard AMP mixer volume
1467 * @kcontrol: ctl element
1468 * @ucontrol: pointer to get/store the data
1469 *
1470 * The control element is supposed to have the private_value field
1471 * set up via HDA_COMPOSE_AMP_VAL*() or related macros.
1472 */
1473int snd_hda_mixer_amp_volume_get(struct snd_kcontrol *kcontrol,
1474 struct snd_ctl_elem_value *ucontrol)
1475{
1476 struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
1477 hda_nid_t nid = get_amp_nid(kcontrol);
1478 int chs = get_amp_channels(kcontrol);
1479 int dir = get_amp_direction(kcontrol);
1480 int idx = get_amp_index(kcontrol);
1481 unsigned int ofs = get_amp_offset(kcontrol);
1482 long *valp = ucontrol->value.integer.value;
1483
1484 if (chs & 1)
1485 *valp++ = read_amp_value(codec, nid, 0, dir, idx, ofs);
1486 if (chs & 2)
1487 *valp = read_amp_value(codec, nid, 1, dir, idx, ofs);
1488 return 0;
1489}
1490EXPORT_SYMBOL_GPL(snd_hda_mixer_amp_volume_get);
1491
1492/**
1493 * snd_hda_mixer_amp_volume_put - Put callback for a standard AMP mixer volume
1494 * @kcontrol: ctl element
1495 * @ucontrol: pointer to get/store the data
1496 *
1497 * The control element is supposed to have the private_value field
1498 * set up via HDA_COMPOSE_AMP_VAL*() or related macros.
1499 */
1500int snd_hda_mixer_amp_volume_put(struct snd_kcontrol *kcontrol,
1501 struct snd_ctl_elem_value *ucontrol)
1502{
1503 struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
1504 hda_nid_t nid = get_amp_nid(kcontrol);
1505 int chs = get_amp_channels(kcontrol);
1506 int dir = get_amp_direction(kcontrol);
1507 int idx = get_amp_index(kcontrol);
1508 unsigned int ofs = get_amp_offset(kcontrol);
1509 long *valp = ucontrol->value.integer.value;
1510 int change = 0;
1511
1512 if (chs & 1) {
1513 change = update_amp_value(codec, nid, 0, dir, idx, ofs, *valp);
1514 valp++;
1515 }
1516 if (chs & 2)
1517 change |= update_amp_value(codec, nid, 1, dir, idx, ofs, *valp);
1518 return change;
1519}
1520EXPORT_SYMBOL_GPL(snd_hda_mixer_amp_volume_put);
1521
1522/* inquiry the amp caps and convert to TLV */
1523static void get_ctl_amp_tlv(struct snd_kcontrol *kcontrol, unsigned int *tlv)
1524{
1525 struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
1526 hda_nid_t nid = get_amp_nid(kcontrol);
1527 int dir = get_amp_direction(kcontrol);
1528 unsigned int ofs = get_amp_offset(kcontrol);
1529 bool min_mute = get_amp_min_mute(kcontrol);
1530 u32 caps, val1, val2;
1531
1532 caps = query_amp_caps(codec, nid, dir);
1533 val2 = (caps & AC_AMPCAP_STEP_SIZE) >> AC_AMPCAP_STEP_SIZE_SHIFT;
1534 val2 = (val2 + 1) * 25;
1535 val1 = -((caps & AC_AMPCAP_OFFSET) >> AC_AMPCAP_OFFSET_SHIFT);
1536 val1 += ofs;
1537 val1 = ((int)val1) * ((int)val2);
1538 if (min_mute || (caps & AC_AMPCAP_MIN_MUTE))
1539 val2 |= TLV_DB_SCALE_MUTE;
1540 tlv[SNDRV_CTL_TLVO_TYPE] = SNDRV_CTL_TLVT_DB_SCALE;
1541 tlv[SNDRV_CTL_TLVO_LEN] = 2 * sizeof(unsigned int);
1542 tlv[SNDRV_CTL_TLVO_DB_SCALE_MIN] = val1;
1543 tlv[SNDRV_CTL_TLVO_DB_SCALE_MUTE_AND_STEP] = val2;
1544}
1545
1546/**
1547 * snd_hda_mixer_amp_tlv - TLV callback for a standard AMP mixer volume
1548 * @kcontrol: ctl element
1549 * @op_flag: operation flag
1550 * @size: byte size of input TLV
1551 * @_tlv: TLV data
1552 *
1553 * The control element is supposed to have the private_value field
1554 * set up via HDA_COMPOSE_AMP_VAL*() or related macros.
1555 */
1556int snd_hda_mixer_amp_tlv(struct snd_kcontrol *kcontrol, int op_flag,
1557 unsigned int size, unsigned int __user *_tlv)
1558{
1559 unsigned int tlv[4];
1560
1561 if (size < 4 * sizeof(unsigned int))
1562 return -ENOMEM;
1563 get_ctl_amp_tlv(kcontrol, tlv);
1564 if (copy_to_user(_tlv, tlv, sizeof(tlv)))
1565 return -EFAULT;
1566 return 0;
1567}
1568EXPORT_SYMBOL_GPL(snd_hda_mixer_amp_tlv);
1569
1570/**
1571 * snd_hda_set_vmaster_tlv - Set TLV for a virtual master control
1572 * @codec: HD-audio codec
1573 * @nid: NID of a reference widget
1574 * @dir: #HDA_INPUT or #HDA_OUTPUT
1575 * @tlv: TLV data to be stored, at least 4 elements
1576 *
1577 * Set (static) TLV data for a virtual master volume using the AMP caps
1578 * obtained from the reference NID.
1579 * The volume range is recalculated as if the max volume is 0dB.
1580 */
1581void snd_hda_set_vmaster_tlv(struct hda_codec *codec, hda_nid_t nid, int dir,
1582 unsigned int *tlv)
1583{
1584 u32 caps;
1585 int nums, step;
1586
1587 caps = query_amp_caps(codec, nid, dir);
1588 nums = (caps & AC_AMPCAP_NUM_STEPS) >> AC_AMPCAP_NUM_STEPS_SHIFT;
1589 step = (caps & AC_AMPCAP_STEP_SIZE) >> AC_AMPCAP_STEP_SIZE_SHIFT;
1590 step = (step + 1) * 25;
1591 tlv[SNDRV_CTL_TLVO_TYPE] = SNDRV_CTL_TLVT_DB_SCALE;
1592 tlv[SNDRV_CTL_TLVO_LEN] = 2 * sizeof(unsigned int);
1593 tlv[SNDRV_CTL_TLVO_DB_SCALE_MIN] = -nums * step;
1594 tlv[SNDRV_CTL_TLVO_DB_SCALE_MUTE_AND_STEP] = step;
1595}
1596EXPORT_SYMBOL_GPL(snd_hda_set_vmaster_tlv);
1597
1598/* find a mixer control element with the given name */
1599static struct snd_kcontrol *
1600find_mixer_ctl(struct hda_codec *codec, const char *name, int dev, int idx)
1601{
1602 struct snd_ctl_elem_id id;
1603 memset(&id, 0, sizeof(id));
1604 id.iface = SNDRV_CTL_ELEM_IFACE_MIXER;
1605 id.device = dev;
1606 id.index = idx;
1607 if (snd_BUG_ON(strlen(name) >= sizeof(id.name)))
1608 return NULL;
1609 strcpy(id.name, name);
1610 return snd_ctl_find_id(codec->card, &id);
1611}
1612
1613/**
1614 * snd_hda_find_mixer_ctl - Find a mixer control element with the given name
1615 * @codec: HD-audio codec
1616 * @name: ctl id name string
1617 *
1618 * Get the control element with the given id string and IFACE_MIXER.
1619 */
1620struct snd_kcontrol *snd_hda_find_mixer_ctl(struct hda_codec *codec,
1621 const char *name)
1622{
1623 return find_mixer_ctl(codec, name, 0, 0);
1624}
1625EXPORT_SYMBOL_GPL(snd_hda_find_mixer_ctl);
1626
1627static int find_empty_mixer_ctl_idx(struct hda_codec *codec, const char *name,
1628 int start_idx)
1629{
1630 int i, idx;
1631 /* 16 ctlrs should be large enough */
1632 for (i = 0, idx = start_idx; i < 16; i++, idx++) {
1633 if (!find_mixer_ctl(codec, name, 0, idx))
1634 return idx;
1635 }
1636 return -EBUSY;
1637}
1638
1639/**
1640 * snd_hda_ctl_add - Add a control element and assign to the codec
1641 * @codec: HD-audio codec
1642 * @nid: corresponding NID (optional)
1643 * @kctl: the control element to assign
1644 *
1645 * Add the given control element to an array inside the codec instance.
1646 * All control elements belonging to a codec are supposed to be added
1647 * by this function so that a proper clean-up works at the free or
1648 * reconfiguration time.
1649 *
1650 * If non-zero @nid is passed, the NID is assigned to the control element.
1651 * The assignment is shown in the codec proc file.
1652 *
1653 * snd_hda_ctl_add() checks the control subdev id field whether
1654 * #HDA_SUBDEV_NID_FLAG bit is set. If set (and @nid is zero), the lower
1655 * bits value is taken as the NID to assign. The #HDA_NID_ITEM_AMP bit
1656 * specifies if kctl->private_value is a HDA amplifier value.
1657 */
1658int snd_hda_ctl_add(struct hda_codec *codec, hda_nid_t nid,
1659 struct snd_kcontrol *kctl)
1660{
1661 int err;
1662 unsigned short flags = 0;
1663 struct hda_nid_item *item;
1664
1665 if (kctl->id.subdevice & HDA_SUBDEV_AMP_FLAG) {
1666 flags |= HDA_NID_ITEM_AMP;
1667 if (nid == 0)
1668 nid = get_amp_nid_(kctl->private_value);
1669 }
1670 if ((kctl->id.subdevice & HDA_SUBDEV_NID_FLAG) != 0 && nid == 0)
1671 nid = kctl->id.subdevice & 0xffff;
1672 if (kctl->id.subdevice & (HDA_SUBDEV_NID_FLAG|HDA_SUBDEV_AMP_FLAG))
1673 kctl->id.subdevice = 0;
1674 err = snd_ctl_add(codec->card, kctl);
1675 if (err < 0)
1676 return err;
1677 item = snd_array_new(&codec->mixers);
1678 if (!item)
1679 return -ENOMEM;
1680 item->kctl = kctl;
1681 item->nid = nid;
1682 item->flags = flags;
1683 return 0;
1684}
1685EXPORT_SYMBOL_GPL(snd_hda_ctl_add);
1686
1687/**
1688 * snd_hda_add_nid - Assign a NID to a control element
1689 * @codec: HD-audio codec
1690 * @nid: corresponding NID (optional)
1691 * @kctl: the control element to assign
1692 * @index: index to kctl
1693 *
1694 * Add the given control element to an array inside the codec instance.
1695 * This function is used when #snd_hda_ctl_add cannot be used for 1:1
1696 * NID:KCTL mapping - for example "Capture Source" selector.
1697 */
1698int snd_hda_add_nid(struct hda_codec *codec, struct snd_kcontrol *kctl,
1699 unsigned int index, hda_nid_t nid)
1700{
1701 struct hda_nid_item *item;
1702
1703 if (nid > 0) {
1704 item = snd_array_new(&codec->nids);
1705 if (!item)
1706 return -ENOMEM;
1707 item->kctl = kctl;
1708 item->index = index;
1709 item->nid = nid;
1710 return 0;
1711 }
1712 codec_err(codec, "no NID for mapping control %s:%d:%d\n",
1713 kctl->id.name, kctl->id.index, index);
1714 return -EINVAL;
1715}
1716EXPORT_SYMBOL_GPL(snd_hda_add_nid);
1717
1718/**
1719 * snd_hda_ctls_clear - Clear all controls assigned to the given codec
1720 * @codec: HD-audio codec
1721 */
1722void snd_hda_ctls_clear(struct hda_codec *codec)
1723{
1724 int i;
1725 struct hda_nid_item *items = codec->mixers.list;
1726 for (i = 0; i < codec->mixers.used; i++)
1727 snd_ctl_remove(codec->card, items[i].kctl);
1728 snd_array_free(&codec->mixers);
1729 snd_array_free(&codec->nids);
1730}
1731
1732/**
1733 * snd_hda_lock_devices - pseudo device locking
1734 * @bus: the BUS
1735 *
1736 * toggle card->shutdown to allow/disallow the device access (as a hack)
1737 */
1738int snd_hda_lock_devices(struct hda_bus *bus)
1739{
1740 struct snd_card *card = bus->card;
1741 struct hda_codec *codec;
1742
1743 spin_lock(&card->files_lock);
1744 if (card->shutdown)
1745 goto err_unlock;
1746 card->shutdown = 1;
1747 if (!list_empty(&card->ctl_files))
1748 goto err_clear;
1749
1750 list_for_each_codec(codec, bus) {
1751 struct hda_pcm *cpcm;
1752 list_for_each_entry(cpcm, &codec->pcm_list_head, list) {
1753 if (!cpcm->pcm)
1754 continue;
1755 if (cpcm->pcm->streams[0].substream_opened ||
1756 cpcm->pcm->streams[1].substream_opened)
1757 goto err_clear;
1758 }
1759 }
1760 spin_unlock(&card->files_lock);
1761 return 0;
1762
1763 err_clear:
1764 card->shutdown = 0;
1765 err_unlock:
1766 spin_unlock(&card->files_lock);
1767 return -EINVAL;
1768}
1769EXPORT_SYMBOL_GPL(snd_hda_lock_devices);
1770
1771/**
1772 * snd_hda_unlock_devices - pseudo device unlocking
1773 * @bus: the BUS
1774 */
1775void snd_hda_unlock_devices(struct hda_bus *bus)
1776{
1777 struct snd_card *card = bus->card;
1778
1779 spin_lock(&card->files_lock);
1780 card->shutdown = 0;
1781 spin_unlock(&card->files_lock);
1782}
1783EXPORT_SYMBOL_GPL(snd_hda_unlock_devices);
1784
1785/**
1786 * snd_hda_codec_reset - Clear all objects assigned to the codec
1787 * @codec: HD-audio codec
1788 *
1789 * This frees the all PCM and control elements assigned to the codec, and
1790 * clears the caches and restores the pin default configurations.
1791 *
1792 * When a device is being used, it returns -EBSY. If successfully freed,
1793 * returns zero.
1794 */
1795int snd_hda_codec_reset(struct hda_codec *codec)
1796{
1797 struct hda_bus *bus = codec->bus;
1798
1799 if (snd_hda_lock_devices(bus) < 0)
1800 return -EBUSY;
1801
1802 /* OK, let it free */
1803 snd_hdac_device_unregister(&codec->core);
1804
1805 /* allow device access again */
1806 snd_hda_unlock_devices(bus);
1807 return 0;
1808}
1809
1810typedef int (*map_follower_func_t)(struct hda_codec *, void *, struct snd_kcontrol *);
1811
1812/* apply the function to all matching follower ctls in the mixer list */
1813static int map_followers(struct hda_codec *codec, const char * const *followers,
1814 const char *suffix, map_follower_func_t func, void *data)
1815{
1816 struct hda_nid_item *items;
1817 const char * const *s;
1818 int i, err;
1819
1820 items = codec->mixers.list;
1821 for (i = 0; i < codec->mixers.used; i++) {
1822 struct snd_kcontrol *sctl = items[i].kctl;
1823 if (!sctl || sctl->id.iface != SNDRV_CTL_ELEM_IFACE_MIXER)
1824 continue;
1825 for (s = followers; *s; s++) {
1826 char tmpname[sizeof(sctl->id.name)];
1827 const char *name = *s;
1828 if (suffix) {
1829 snprintf(tmpname, sizeof(tmpname), "%s %s",
1830 name, suffix);
1831 name = tmpname;
1832 }
1833 if (!strcmp(sctl->id.name, name)) {
1834 err = func(codec, data, sctl);
1835 if (err)
1836 return err;
1837 break;
1838 }
1839 }
1840 }
1841 return 0;
1842}
1843
1844static int check_follower_present(struct hda_codec *codec,
1845 void *data, struct snd_kcontrol *sctl)
1846{
1847 return 1;
1848}
1849
1850/* call kctl->put with the given value(s) */
1851static int put_kctl_with_value(struct snd_kcontrol *kctl, int val)
1852{
1853 struct snd_ctl_elem_value *ucontrol;
1854 ucontrol = kzalloc(sizeof(*ucontrol), GFP_KERNEL);
1855 if (!ucontrol)
1856 return -ENOMEM;
1857 ucontrol->value.integer.value[0] = val;
1858 ucontrol->value.integer.value[1] = val;
1859 kctl->put(kctl, ucontrol);
1860 kfree(ucontrol);
1861 return 0;
1862}
1863
1864struct follower_init_arg {
1865 struct hda_codec *codec;
1866 int step;
1867};
1868
1869/* initialize the follower volume with 0dB via snd_ctl_apply_vmaster_followers() */
1870static int init_follower_0dB(struct snd_kcontrol *follower,
1871 struct snd_kcontrol *kctl,
1872 void *_arg)
1873{
1874 struct follower_init_arg *arg = _arg;
1875 int _tlv[4];
1876 const int *tlv = NULL;
1877 int step;
1878 int val;
1879
1880 if (kctl->vd[0].access & SNDRV_CTL_ELEM_ACCESS_TLV_CALLBACK) {
1881 if (kctl->tlv.c != snd_hda_mixer_amp_tlv) {
1882 codec_err(arg->codec,
1883 "Unexpected TLV callback for follower %s:%d\n",
1884 kctl->id.name, kctl->id.index);
1885 return 0; /* ignore */
1886 }
1887 get_ctl_amp_tlv(kctl, _tlv);
1888 tlv = _tlv;
1889 } else if (kctl->vd[0].access & SNDRV_CTL_ELEM_ACCESS_TLV_READ)
1890 tlv = kctl->tlv.p;
1891
1892 if (!tlv || tlv[SNDRV_CTL_TLVO_TYPE] != SNDRV_CTL_TLVT_DB_SCALE)
1893 return 0;
1894
1895 step = tlv[SNDRV_CTL_TLVO_DB_SCALE_MUTE_AND_STEP];
1896 step &= ~TLV_DB_SCALE_MUTE;
1897 if (!step)
1898 return 0;
1899 if (arg->step && arg->step != step) {
1900 codec_err(arg->codec,
1901 "Mismatching dB step for vmaster follower (%d!=%d)\n",
1902 arg->step, step);
1903 return 0;
1904 }
1905
1906 arg->step = step;
1907 val = -tlv[SNDRV_CTL_TLVO_DB_SCALE_MIN] / step;
1908 if (val > 0) {
1909 put_kctl_with_value(follower, val);
1910 return val;
1911 }
1912
1913 return 0;
1914}
1915
1916/* unmute the follower via snd_ctl_apply_vmaster_followers() */
1917static int init_follower_unmute(struct snd_kcontrol *follower,
1918 struct snd_kcontrol *kctl,
1919 void *_arg)
1920{
1921 return put_kctl_with_value(follower, 1);
1922}
1923
1924static int add_follower(struct hda_codec *codec,
1925 void *data, struct snd_kcontrol *follower)
1926{
1927 return snd_ctl_add_follower(data, follower);
1928}
1929
1930/**
1931 * __snd_hda_add_vmaster - create a virtual master control and add followers
1932 * @codec: HD-audio codec
1933 * @name: vmaster control name
1934 * @tlv: TLV data (optional)
1935 * @followers: follower control names (optional)
1936 * @suffix: suffix string to each follower name (optional)
1937 * @init_follower_vol: initialize followers to unmute/0dB
1938 * @ctl_ret: store the vmaster kcontrol in return
1939 *
1940 * Create a virtual master control with the given name. The TLV data
1941 * must be either NULL or a valid data.
1942 *
1943 * @followers is a NULL-terminated array of strings, each of which is a
1944 * follower control name. All controls with these names are assigned to
1945 * the new virtual master control.
1946 *
1947 * This function returns zero if successful or a negative error code.
1948 */
1949int __snd_hda_add_vmaster(struct hda_codec *codec, char *name,
1950 unsigned int *tlv, const char * const *followers,
1951 const char *suffix, bool init_follower_vol,
1952 struct snd_kcontrol **ctl_ret)
1953{
1954 struct snd_kcontrol *kctl;
1955 int err;
1956
1957 if (ctl_ret)
1958 *ctl_ret = NULL;
1959
1960 err = map_followers(codec, followers, suffix, check_follower_present, NULL);
1961 if (err != 1) {
1962 codec_dbg(codec, "No follower found for %s\n", name);
1963 return 0;
1964 }
1965 kctl = snd_ctl_make_virtual_master(name, tlv);
1966 if (!kctl)
1967 return -ENOMEM;
1968 err = snd_hda_ctl_add(codec, 0, kctl);
1969 if (err < 0)
1970 return err;
1971
1972 err = map_followers(codec, followers, suffix, add_follower, kctl);
1973 if (err < 0)
1974 return err;
1975
1976 /* init with master mute & zero volume */
1977 put_kctl_with_value(kctl, 0);
1978 if (init_follower_vol) {
1979 struct follower_init_arg arg = {
1980 .codec = codec,
1981 .step = 0,
1982 };
1983 snd_ctl_apply_vmaster_followers(kctl,
1984 tlv ? init_follower_0dB : init_follower_unmute,
1985 &arg);
1986 }
1987
1988 if (ctl_ret)
1989 *ctl_ret = kctl;
1990 return 0;
1991}
1992EXPORT_SYMBOL_GPL(__snd_hda_add_vmaster);
1993
1994/*
1995 * mute-LED control using vmaster
1996 */
1997static int vmaster_mute_mode_info(struct snd_kcontrol *kcontrol,
1998 struct snd_ctl_elem_info *uinfo)
1999{
2000 static const char * const texts[] = {
2001 "On", "Off", "Follow Master"
2002 };
2003
2004 return snd_ctl_enum_info(uinfo, 1, 3, texts);
2005}
2006
2007static int vmaster_mute_mode_get(struct snd_kcontrol *kcontrol,
2008 struct snd_ctl_elem_value *ucontrol)
2009{
2010 struct hda_vmaster_mute_hook *hook = snd_kcontrol_chip(kcontrol);
2011 ucontrol->value.enumerated.item[0] = hook->mute_mode;
2012 return 0;
2013}
2014
2015static int vmaster_mute_mode_put(struct snd_kcontrol *kcontrol,
2016 struct snd_ctl_elem_value *ucontrol)
2017{
2018 struct hda_vmaster_mute_hook *hook = snd_kcontrol_chip(kcontrol);
2019 unsigned int old_mode = hook->mute_mode;
2020
2021 hook->mute_mode = ucontrol->value.enumerated.item[0];
2022 if (hook->mute_mode > HDA_VMUTE_FOLLOW_MASTER)
2023 hook->mute_mode = HDA_VMUTE_FOLLOW_MASTER;
2024 if (old_mode == hook->mute_mode)
2025 return 0;
2026 snd_hda_sync_vmaster_hook(hook);
2027 return 1;
2028}
2029
2030static const struct snd_kcontrol_new vmaster_mute_mode = {
2031 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
2032 .name = "Mute-LED Mode",
2033 .info = vmaster_mute_mode_info,
2034 .get = vmaster_mute_mode_get,
2035 .put = vmaster_mute_mode_put,
2036};
2037
2038/* meta hook to call each driver's vmaster hook */
2039static void vmaster_hook(void *private_data, int enabled)
2040{
2041 struct hda_vmaster_mute_hook *hook = private_data;
2042
2043 if (hook->mute_mode != HDA_VMUTE_FOLLOW_MASTER)
2044 enabled = hook->mute_mode;
2045 hook->hook(hook->codec, enabled);
2046}
2047
2048/**
2049 * snd_hda_add_vmaster_hook - Add a vmaster hook for mute-LED
2050 * @codec: the HDA codec
2051 * @hook: the vmaster hook object
2052 * @expose_enum_ctl: flag to create an enum ctl
2053 *
2054 * Add a mute-LED hook with the given vmaster switch kctl.
2055 * When @expose_enum_ctl is set, "Mute-LED Mode" control is automatically
2056 * created and associated with the given hook.
2057 */
2058int snd_hda_add_vmaster_hook(struct hda_codec *codec,
2059 struct hda_vmaster_mute_hook *hook,
2060 bool expose_enum_ctl)
2061{
2062 struct snd_kcontrol *kctl;
2063
2064 if (!hook->hook || !hook->sw_kctl)
2065 return 0;
2066 hook->codec = codec;
2067 hook->mute_mode = HDA_VMUTE_FOLLOW_MASTER;
2068 snd_ctl_add_vmaster_hook(hook->sw_kctl, vmaster_hook, hook);
2069 if (!expose_enum_ctl)
2070 return 0;
2071 kctl = snd_ctl_new1(&vmaster_mute_mode, hook);
2072 if (!kctl)
2073 return -ENOMEM;
2074 return snd_hda_ctl_add(codec, 0, kctl);
2075}
2076EXPORT_SYMBOL_GPL(snd_hda_add_vmaster_hook);
2077
2078/**
2079 * snd_hda_sync_vmaster_hook - Sync vmaster hook
2080 * @hook: the vmaster hook
2081 *
2082 * Call the hook with the current value for synchronization.
2083 * Should be called in init callback.
2084 */
2085void snd_hda_sync_vmaster_hook(struct hda_vmaster_mute_hook *hook)
2086{
2087 if (!hook->hook || !hook->codec)
2088 return;
2089 /* don't call vmaster hook in the destructor since it might have
2090 * been already destroyed
2091 */
2092 if (hook->codec->bus->shutdown)
2093 return;
2094 snd_ctl_sync_vmaster_hook(hook->sw_kctl);
2095}
2096EXPORT_SYMBOL_GPL(snd_hda_sync_vmaster_hook);
2097
2098
2099/**
2100 * snd_hda_mixer_amp_switch_info - Info callback for a standard AMP mixer switch
2101 * @kcontrol: referred ctl element
2102 * @uinfo: pointer to get/store the data
2103 *
2104 * The control element is supposed to have the private_value field
2105 * set up via HDA_COMPOSE_AMP_VAL*() or related macros.
2106 */
2107int snd_hda_mixer_amp_switch_info(struct snd_kcontrol *kcontrol,
2108 struct snd_ctl_elem_info *uinfo)
2109{
2110 int chs = get_amp_channels(kcontrol);
2111
2112 uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN;
2113 uinfo->count = chs == 3 ? 2 : 1;
2114 uinfo->value.integer.min = 0;
2115 uinfo->value.integer.max = 1;
2116 return 0;
2117}
2118EXPORT_SYMBOL_GPL(snd_hda_mixer_amp_switch_info);
2119
2120/**
2121 * snd_hda_mixer_amp_switch_get - Get callback for a standard AMP mixer switch
2122 * @kcontrol: ctl element
2123 * @ucontrol: pointer to get/store the data
2124 *
2125 * The control element is supposed to have the private_value field
2126 * set up via HDA_COMPOSE_AMP_VAL*() or related macros.
2127 */
2128int snd_hda_mixer_amp_switch_get(struct snd_kcontrol *kcontrol,
2129 struct snd_ctl_elem_value *ucontrol)
2130{
2131 struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
2132 hda_nid_t nid = get_amp_nid(kcontrol);
2133 int chs = get_amp_channels(kcontrol);
2134 int dir = get_amp_direction(kcontrol);
2135 int idx = get_amp_index(kcontrol);
2136 long *valp = ucontrol->value.integer.value;
2137
2138 if (chs & 1)
2139 *valp++ = (snd_hda_codec_amp_read(codec, nid, 0, dir, idx) &
2140 HDA_AMP_MUTE) ? 0 : 1;
2141 if (chs & 2)
2142 *valp = (snd_hda_codec_amp_read(codec, nid, 1, dir, idx) &
2143 HDA_AMP_MUTE) ? 0 : 1;
2144 return 0;
2145}
2146EXPORT_SYMBOL_GPL(snd_hda_mixer_amp_switch_get);
2147
2148/**
2149 * snd_hda_mixer_amp_switch_put - Put callback for a standard AMP mixer switch
2150 * @kcontrol: ctl element
2151 * @ucontrol: pointer to get/store the data
2152 *
2153 * The control element is supposed to have the private_value field
2154 * set up via HDA_COMPOSE_AMP_VAL*() or related macros.
2155 */
2156int snd_hda_mixer_amp_switch_put(struct snd_kcontrol *kcontrol,
2157 struct snd_ctl_elem_value *ucontrol)
2158{
2159 struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
2160 hda_nid_t nid = get_amp_nid(kcontrol);
2161 int chs = get_amp_channels(kcontrol);
2162 int dir = get_amp_direction(kcontrol);
2163 int idx = get_amp_index(kcontrol);
2164 long *valp = ucontrol->value.integer.value;
2165 int change = 0;
2166
2167 if (chs & 1) {
2168 change = snd_hda_codec_amp_update(codec, nid, 0, dir, idx,
2169 HDA_AMP_MUTE,
2170 *valp ? 0 : HDA_AMP_MUTE);
2171 valp++;
2172 }
2173 if (chs & 2)
2174 change |= snd_hda_codec_amp_update(codec, nid, 1, dir, idx,
2175 HDA_AMP_MUTE,
2176 *valp ? 0 : HDA_AMP_MUTE);
2177 hda_call_check_power_status(codec, nid);
2178 return change;
2179}
2180EXPORT_SYMBOL_GPL(snd_hda_mixer_amp_switch_put);
2181
2182/*
2183 * SPDIF out controls
2184 */
2185
2186static int snd_hda_spdif_mask_info(struct snd_kcontrol *kcontrol,
2187 struct snd_ctl_elem_info *uinfo)
2188{
2189 uinfo->type = SNDRV_CTL_ELEM_TYPE_IEC958;
2190 uinfo->count = 1;
2191 return 0;
2192}
2193
2194static int snd_hda_spdif_cmask_get(struct snd_kcontrol *kcontrol,
2195 struct snd_ctl_elem_value *ucontrol)
2196{
2197 ucontrol->value.iec958.status[0] = IEC958_AES0_PROFESSIONAL |
2198 IEC958_AES0_NONAUDIO |
2199 IEC958_AES0_CON_EMPHASIS_5015 |
2200 IEC958_AES0_CON_NOT_COPYRIGHT;
2201 ucontrol->value.iec958.status[1] = IEC958_AES1_CON_CATEGORY |
2202 IEC958_AES1_CON_ORIGINAL;
2203 return 0;
2204}
2205
2206static int snd_hda_spdif_pmask_get(struct snd_kcontrol *kcontrol,
2207 struct snd_ctl_elem_value *ucontrol)
2208{
2209 ucontrol->value.iec958.status[0] = IEC958_AES0_PROFESSIONAL |
2210 IEC958_AES0_NONAUDIO |
2211 IEC958_AES0_PRO_EMPHASIS_5015;
2212 return 0;
2213}
2214
2215static int snd_hda_spdif_default_get(struct snd_kcontrol *kcontrol,
2216 struct snd_ctl_elem_value *ucontrol)
2217{
2218 struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
2219 int idx = kcontrol->private_value;
2220 struct hda_spdif_out *spdif;
2221
2222 if (WARN_ON(codec->spdif_out.used <= idx))
2223 return -EINVAL;
2224 mutex_lock(&codec->spdif_mutex);
2225 spdif = snd_array_elem(&codec->spdif_out, idx);
2226 ucontrol->value.iec958.status[0] = spdif->status & 0xff;
2227 ucontrol->value.iec958.status[1] = (spdif->status >> 8) & 0xff;
2228 ucontrol->value.iec958.status[2] = (spdif->status >> 16) & 0xff;
2229 ucontrol->value.iec958.status[3] = (spdif->status >> 24) & 0xff;
2230 mutex_unlock(&codec->spdif_mutex);
2231
2232 return 0;
2233}
2234
2235/* convert from SPDIF status bits to HDA SPDIF bits
2236 * bit 0 (DigEn) is always set zero (to be filled later)
2237 */
2238static unsigned short convert_from_spdif_status(unsigned int sbits)
2239{
2240 unsigned short val = 0;
2241
2242 if (sbits & IEC958_AES0_PROFESSIONAL)
2243 val |= AC_DIG1_PROFESSIONAL;
2244 if (sbits & IEC958_AES0_NONAUDIO)
2245 val |= AC_DIG1_NONAUDIO;
2246 if (sbits & IEC958_AES0_PROFESSIONAL) {
2247 if ((sbits & IEC958_AES0_PRO_EMPHASIS) ==
2248 IEC958_AES0_PRO_EMPHASIS_5015)
2249 val |= AC_DIG1_EMPHASIS;
2250 } else {
2251 if ((sbits & IEC958_AES0_CON_EMPHASIS) ==
2252 IEC958_AES0_CON_EMPHASIS_5015)
2253 val |= AC_DIG1_EMPHASIS;
2254 if (!(sbits & IEC958_AES0_CON_NOT_COPYRIGHT))
2255 val |= AC_DIG1_COPYRIGHT;
2256 if (sbits & (IEC958_AES1_CON_ORIGINAL << 8))
2257 val |= AC_DIG1_LEVEL;
2258 val |= sbits & (IEC958_AES1_CON_CATEGORY << 8);
2259 }
2260 return val;
2261}
2262
2263/* convert to SPDIF status bits from HDA SPDIF bits
2264 */
2265static unsigned int convert_to_spdif_status(unsigned short val)
2266{
2267 unsigned int sbits = 0;
2268
2269 if (val & AC_DIG1_NONAUDIO)
2270 sbits |= IEC958_AES0_NONAUDIO;
2271 if (val & AC_DIG1_PROFESSIONAL)
2272 sbits |= IEC958_AES0_PROFESSIONAL;
2273 if (sbits & IEC958_AES0_PROFESSIONAL) {
2274 if (val & AC_DIG1_EMPHASIS)
2275 sbits |= IEC958_AES0_PRO_EMPHASIS_5015;
2276 } else {
2277 if (val & AC_DIG1_EMPHASIS)
2278 sbits |= IEC958_AES0_CON_EMPHASIS_5015;
2279 if (!(val & AC_DIG1_COPYRIGHT))
2280 sbits |= IEC958_AES0_CON_NOT_COPYRIGHT;
2281 if (val & AC_DIG1_LEVEL)
2282 sbits |= (IEC958_AES1_CON_ORIGINAL << 8);
2283 sbits |= val & (0x7f << 8);
2284 }
2285 return sbits;
2286}
2287
2288/* set digital convert verbs both for the given NID and its followers */
2289static void set_dig_out(struct hda_codec *codec, hda_nid_t nid,
2290 int mask, int val)
2291{
2292 const hda_nid_t *d;
2293
2294 snd_hdac_regmap_update(&codec->core, nid, AC_VERB_SET_DIGI_CONVERT_1,
2295 mask, val);
2296 d = codec->follower_dig_outs;
2297 if (!d)
2298 return;
2299 for (; *d; d++)
2300 snd_hdac_regmap_update(&codec->core, *d,
2301 AC_VERB_SET_DIGI_CONVERT_1, mask, val);
2302}
2303
2304static inline void set_dig_out_convert(struct hda_codec *codec, hda_nid_t nid,
2305 int dig1, int dig2)
2306{
2307 unsigned int mask = 0;
2308 unsigned int val = 0;
2309
2310 if (dig1 != -1) {
2311 mask |= 0xff;
2312 val = dig1;
2313 }
2314 if (dig2 != -1) {
2315 mask |= 0xff00;
2316 val |= dig2 << 8;
2317 }
2318 set_dig_out(codec, nid, mask, val);
2319}
2320
2321static int snd_hda_spdif_default_put(struct snd_kcontrol *kcontrol,
2322 struct snd_ctl_elem_value *ucontrol)
2323{
2324 struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
2325 int idx = kcontrol->private_value;
2326 struct hda_spdif_out *spdif;
2327 hda_nid_t nid;
2328 unsigned short val;
2329 int change;
2330
2331 if (WARN_ON(codec->spdif_out.used <= idx))
2332 return -EINVAL;
2333 mutex_lock(&codec->spdif_mutex);
2334 spdif = snd_array_elem(&codec->spdif_out, idx);
2335 nid = spdif->nid;
2336 spdif->status = ucontrol->value.iec958.status[0] |
2337 ((unsigned int)ucontrol->value.iec958.status[1] << 8) |
2338 ((unsigned int)ucontrol->value.iec958.status[2] << 16) |
2339 ((unsigned int)ucontrol->value.iec958.status[3] << 24);
2340 val = convert_from_spdif_status(spdif->status);
2341 val |= spdif->ctls & 1;
2342 change = spdif->ctls != val;
2343 spdif->ctls = val;
2344 if (change && nid != (u16)-1)
2345 set_dig_out_convert(codec, nid, val & 0xff, (val >> 8) & 0xff);
2346 mutex_unlock(&codec->spdif_mutex);
2347 return change;
2348}
2349
2350#define snd_hda_spdif_out_switch_info snd_ctl_boolean_mono_info
2351
2352static int snd_hda_spdif_out_switch_get(struct snd_kcontrol *kcontrol,
2353 struct snd_ctl_elem_value *ucontrol)
2354{
2355 struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
2356 int idx = kcontrol->private_value;
2357 struct hda_spdif_out *spdif;
2358
2359 if (WARN_ON(codec->spdif_out.used <= idx))
2360 return -EINVAL;
2361 mutex_lock(&codec->spdif_mutex);
2362 spdif = snd_array_elem(&codec->spdif_out, idx);
2363 ucontrol->value.integer.value[0] = spdif->ctls & AC_DIG1_ENABLE;
2364 mutex_unlock(&codec->spdif_mutex);
2365 return 0;
2366}
2367
2368static inline void set_spdif_ctls(struct hda_codec *codec, hda_nid_t nid,
2369 int dig1, int dig2)
2370{
2371 set_dig_out_convert(codec, nid, dig1, dig2);
2372 /* unmute amp switch (if any) */
2373 if ((get_wcaps(codec, nid) & AC_WCAP_OUT_AMP) &&
2374 (dig1 & AC_DIG1_ENABLE))
2375 snd_hda_codec_amp_stereo(codec, nid, HDA_OUTPUT, 0,
2376 HDA_AMP_MUTE, 0);
2377}
2378
2379static int snd_hda_spdif_out_switch_put(struct snd_kcontrol *kcontrol,
2380 struct snd_ctl_elem_value *ucontrol)
2381{
2382 struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
2383 int idx = kcontrol->private_value;
2384 struct hda_spdif_out *spdif;
2385 hda_nid_t nid;
2386 unsigned short val;
2387 int change;
2388
2389 if (WARN_ON(codec->spdif_out.used <= idx))
2390 return -EINVAL;
2391 mutex_lock(&codec->spdif_mutex);
2392 spdif = snd_array_elem(&codec->spdif_out, idx);
2393 nid = spdif->nid;
2394 val = spdif->ctls & ~AC_DIG1_ENABLE;
2395 if (ucontrol->value.integer.value[0])
2396 val |= AC_DIG1_ENABLE;
2397 change = spdif->ctls != val;
2398 spdif->ctls = val;
2399 if (change && nid != (u16)-1)
2400 set_spdif_ctls(codec, nid, val & 0xff, -1);
2401 mutex_unlock(&codec->spdif_mutex);
2402 return change;
2403}
2404
2405static const struct snd_kcontrol_new dig_mixes[] = {
2406 {
2407 .access = SNDRV_CTL_ELEM_ACCESS_READ,
2408 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
2409 .name = SNDRV_CTL_NAME_IEC958("", PLAYBACK, CON_MASK),
2410 .info = snd_hda_spdif_mask_info,
2411 .get = snd_hda_spdif_cmask_get,
2412 },
2413 {
2414 .access = SNDRV_CTL_ELEM_ACCESS_READ,
2415 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
2416 .name = SNDRV_CTL_NAME_IEC958("", PLAYBACK, PRO_MASK),
2417 .info = snd_hda_spdif_mask_info,
2418 .get = snd_hda_spdif_pmask_get,
2419 },
2420 {
2421 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
2422 .name = SNDRV_CTL_NAME_IEC958("", PLAYBACK, DEFAULT),
2423 .info = snd_hda_spdif_mask_info,
2424 .get = snd_hda_spdif_default_get,
2425 .put = snd_hda_spdif_default_put,
2426 },
2427 {
2428 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
2429 .name = SNDRV_CTL_NAME_IEC958("", PLAYBACK, SWITCH),
2430 .info = snd_hda_spdif_out_switch_info,
2431 .get = snd_hda_spdif_out_switch_get,
2432 .put = snd_hda_spdif_out_switch_put,
2433 },
2434 { } /* end */
2435};
2436
2437/**
2438 * snd_hda_create_dig_out_ctls - create Output SPDIF-related controls
2439 * @codec: the HDA codec
2440 * @associated_nid: NID that new ctls associated with
2441 * @cvt_nid: converter NID
2442 * @type: HDA_PCM_TYPE_*
2443 * Creates controls related with the digital output.
2444 * Called from each patch supporting the digital out.
2445 *
2446 * Returns 0 if successful, or a negative error code.
2447 */
2448int snd_hda_create_dig_out_ctls(struct hda_codec *codec,
2449 hda_nid_t associated_nid,
2450 hda_nid_t cvt_nid,
2451 int type)
2452{
2453 int err;
2454 struct snd_kcontrol *kctl;
2455 const struct snd_kcontrol_new *dig_mix;
2456 int idx = 0;
2457 int val = 0;
2458 const int spdif_index = 16;
2459 struct hda_spdif_out *spdif;
2460 struct hda_bus *bus = codec->bus;
2461
2462 if (bus->primary_dig_out_type == HDA_PCM_TYPE_HDMI &&
2463 type == HDA_PCM_TYPE_SPDIF) {
2464 idx = spdif_index;
2465 } else if (bus->primary_dig_out_type == HDA_PCM_TYPE_SPDIF &&
2466 type == HDA_PCM_TYPE_HDMI) {
2467 /* suppose a single SPDIF device */
2468 for (dig_mix = dig_mixes; dig_mix->name; dig_mix++) {
2469 kctl = find_mixer_ctl(codec, dig_mix->name, 0, 0);
2470 if (!kctl)
2471 break;
2472 kctl->id.index = spdif_index;
2473 }
2474 bus->primary_dig_out_type = HDA_PCM_TYPE_HDMI;
2475 }
2476 if (!bus->primary_dig_out_type)
2477 bus->primary_dig_out_type = type;
2478
2479 idx = find_empty_mixer_ctl_idx(codec, "IEC958 Playback Switch", idx);
2480 if (idx < 0) {
2481 codec_err(codec, "too many IEC958 outputs\n");
2482 return -EBUSY;
2483 }
2484 spdif = snd_array_new(&codec->spdif_out);
2485 if (!spdif)
2486 return -ENOMEM;
2487 for (dig_mix = dig_mixes; dig_mix->name; dig_mix++) {
2488 kctl = snd_ctl_new1(dig_mix, codec);
2489 if (!kctl)
2490 return -ENOMEM;
2491 kctl->id.index = idx;
2492 kctl->private_value = codec->spdif_out.used - 1;
2493 err = snd_hda_ctl_add(codec, associated_nid, kctl);
2494 if (err < 0)
2495 return err;
2496 }
2497 spdif->nid = cvt_nid;
2498 snd_hdac_regmap_read(&codec->core, cvt_nid,
2499 AC_VERB_GET_DIGI_CONVERT_1, &val);
2500 spdif->ctls = val;
2501 spdif->status = convert_to_spdif_status(spdif->ctls);
2502 return 0;
2503}
2504EXPORT_SYMBOL_GPL(snd_hda_create_dig_out_ctls);
2505
2506/**
2507 * snd_hda_spdif_out_of_nid - get the hda_spdif_out entry from the given NID
2508 * @codec: the HDA codec
2509 * @nid: widget NID
2510 *
2511 * call within spdif_mutex lock
2512 */
2513struct hda_spdif_out *snd_hda_spdif_out_of_nid(struct hda_codec *codec,
2514 hda_nid_t nid)
2515{
2516 struct hda_spdif_out *spdif;
2517 int i;
2518
2519 snd_array_for_each(&codec->spdif_out, i, spdif) {
2520 if (spdif->nid == nid)
2521 return spdif;
2522 }
2523 return NULL;
2524}
2525EXPORT_SYMBOL_GPL(snd_hda_spdif_out_of_nid);
2526
2527/**
2528 * snd_hda_spdif_ctls_unassign - Unassign the given SPDIF ctl
2529 * @codec: the HDA codec
2530 * @idx: the SPDIF ctl index
2531 *
2532 * Unassign the widget from the given SPDIF control.
2533 */
2534void snd_hda_spdif_ctls_unassign(struct hda_codec *codec, int idx)
2535{
2536 struct hda_spdif_out *spdif;
2537
2538 if (WARN_ON(codec->spdif_out.used <= idx))
2539 return;
2540 mutex_lock(&codec->spdif_mutex);
2541 spdif = snd_array_elem(&codec->spdif_out, idx);
2542 spdif->nid = (u16)-1;
2543 mutex_unlock(&codec->spdif_mutex);
2544}
2545EXPORT_SYMBOL_GPL(snd_hda_spdif_ctls_unassign);
2546
2547/**
2548 * snd_hda_spdif_ctls_assign - Assign the SPDIF controls to the given NID
2549 * @codec: the HDA codec
2550 * @idx: the SPDIF ctl idx
2551 * @nid: widget NID
2552 *
2553 * Assign the widget to the SPDIF control with the given index.
2554 */
2555void snd_hda_spdif_ctls_assign(struct hda_codec *codec, int idx, hda_nid_t nid)
2556{
2557 struct hda_spdif_out *spdif;
2558 unsigned short val;
2559
2560 if (WARN_ON(codec->spdif_out.used <= idx))
2561 return;
2562 mutex_lock(&codec->spdif_mutex);
2563 spdif = snd_array_elem(&codec->spdif_out, idx);
2564 if (spdif->nid != nid) {
2565 spdif->nid = nid;
2566 val = spdif->ctls;
2567 set_spdif_ctls(codec, nid, val & 0xff, (val >> 8) & 0xff);
2568 }
2569 mutex_unlock(&codec->spdif_mutex);
2570}
2571EXPORT_SYMBOL_GPL(snd_hda_spdif_ctls_assign);
2572
2573/*
2574 * SPDIF sharing with analog output
2575 */
2576static int spdif_share_sw_get(struct snd_kcontrol *kcontrol,
2577 struct snd_ctl_elem_value *ucontrol)
2578{
2579 struct hda_multi_out *mout = snd_kcontrol_chip(kcontrol);
2580 ucontrol->value.integer.value[0] = mout->share_spdif;
2581 return 0;
2582}
2583
2584static int spdif_share_sw_put(struct snd_kcontrol *kcontrol,
2585 struct snd_ctl_elem_value *ucontrol)
2586{
2587 struct hda_multi_out *mout = snd_kcontrol_chip(kcontrol);
2588 mout->share_spdif = !!ucontrol->value.integer.value[0];
2589 return 0;
2590}
2591
2592static const struct snd_kcontrol_new spdif_share_sw = {
2593 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
2594 .name = "IEC958 Default PCM Playback Switch",
2595 .info = snd_ctl_boolean_mono_info,
2596 .get = spdif_share_sw_get,
2597 .put = spdif_share_sw_put,
2598};
2599
2600/**
2601 * snd_hda_create_spdif_share_sw - create Default PCM switch
2602 * @codec: the HDA codec
2603 * @mout: multi-out instance
2604 */
2605int snd_hda_create_spdif_share_sw(struct hda_codec *codec,
2606 struct hda_multi_out *mout)
2607{
2608 struct snd_kcontrol *kctl;
2609
2610 if (!mout->dig_out_nid)
2611 return 0;
2612
2613 kctl = snd_ctl_new1(&spdif_share_sw, mout);
2614 if (!kctl)
2615 return -ENOMEM;
2616 /* ATTENTION: here mout is passed as private_data, instead of codec */
2617 return snd_hda_ctl_add(codec, mout->dig_out_nid, kctl);
2618}
2619EXPORT_SYMBOL_GPL(snd_hda_create_spdif_share_sw);
2620
2621/*
2622 * SPDIF input
2623 */
2624
2625#define snd_hda_spdif_in_switch_info snd_hda_spdif_out_switch_info
2626
2627static int snd_hda_spdif_in_switch_get(struct snd_kcontrol *kcontrol,
2628 struct snd_ctl_elem_value *ucontrol)
2629{
2630 struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
2631
2632 ucontrol->value.integer.value[0] = codec->spdif_in_enable;
2633 return 0;
2634}
2635
2636static int snd_hda_spdif_in_switch_put(struct snd_kcontrol *kcontrol,
2637 struct snd_ctl_elem_value *ucontrol)
2638{
2639 struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
2640 hda_nid_t nid = kcontrol->private_value;
2641 unsigned int val = !!ucontrol->value.integer.value[0];
2642 int change;
2643
2644 mutex_lock(&codec->spdif_mutex);
2645 change = codec->spdif_in_enable != val;
2646 if (change) {
2647 codec->spdif_in_enable = val;
2648 snd_hdac_regmap_write(&codec->core, nid,
2649 AC_VERB_SET_DIGI_CONVERT_1, val);
2650 }
2651 mutex_unlock(&codec->spdif_mutex);
2652 return change;
2653}
2654
2655static int snd_hda_spdif_in_status_get(struct snd_kcontrol *kcontrol,
2656 struct snd_ctl_elem_value *ucontrol)
2657{
2658 struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
2659 hda_nid_t nid = kcontrol->private_value;
2660 unsigned int val;
2661 unsigned int sbits;
2662
2663 snd_hdac_regmap_read(&codec->core, nid,
2664 AC_VERB_GET_DIGI_CONVERT_1, &val);
2665 sbits = convert_to_spdif_status(val);
2666 ucontrol->value.iec958.status[0] = sbits;
2667 ucontrol->value.iec958.status[1] = sbits >> 8;
2668 ucontrol->value.iec958.status[2] = sbits >> 16;
2669 ucontrol->value.iec958.status[3] = sbits >> 24;
2670 return 0;
2671}
2672
2673static const struct snd_kcontrol_new dig_in_ctls[] = {
2674 {
2675 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
2676 .name = SNDRV_CTL_NAME_IEC958("", CAPTURE, SWITCH),
2677 .info = snd_hda_spdif_in_switch_info,
2678 .get = snd_hda_spdif_in_switch_get,
2679 .put = snd_hda_spdif_in_switch_put,
2680 },
2681 {
2682 .access = SNDRV_CTL_ELEM_ACCESS_READ,
2683 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
2684 .name = SNDRV_CTL_NAME_IEC958("", CAPTURE, DEFAULT),
2685 .info = snd_hda_spdif_mask_info,
2686 .get = snd_hda_spdif_in_status_get,
2687 },
2688 { } /* end */
2689};
2690
2691/**
2692 * snd_hda_create_spdif_in_ctls - create Input SPDIF-related controls
2693 * @codec: the HDA codec
2694 * @nid: audio in widget NID
2695 *
2696 * Creates controls related with the SPDIF input.
2697 * Called from each patch supporting the SPDIF in.
2698 *
2699 * Returns 0 if successful, or a negative error code.
2700 */
2701int snd_hda_create_spdif_in_ctls(struct hda_codec *codec, hda_nid_t nid)
2702{
2703 int err;
2704 struct snd_kcontrol *kctl;
2705 const struct snd_kcontrol_new *dig_mix;
2706 int idx;
2707
2708 idx = find_empty_mixer_ctl_idx(codec, "IEC958 Capture Switch", 0);
2709 if (idx < 0) {
2710 codec_err(codec, "too many IEC958 inputs\n");
2711 return -EBUSY;
2712 }
2713 for (dig_mix = dig_in_ctls; dig_mix->name; dig_mix++) {
2714 kctl = snd_ctl_new1(dig_mix, codec);
2715 if (!kctl)
2716 return -ENOMEM;
2717 kctl->private_value = nid;
2718 err = snd_hda_ctl_add(codec, nid, kctl);
2719 if (err < 0)
2720 return err;
2721 }
2722 codec->spdif_in_enable =
2723 snd_hda_codec_read(codec, nid, 0,
2724 AC_VERB_GET_DIGI_CONVERT_1, 0) &
2725 AC_DIG1_ENABLE;
2726 return 0;
2727}
2728EXPORT_SYMBOL_GPL(snd_hda_create_spdif_in_ctls);
2729
2730/**
2731 * snd_hda_codec_set_power_to_all - Set the power state to all widgets
2732 * @codec: the HDA codec
2733 * @fg: function group (not used now)
2734 * @power_state: the power state to set (AC_PWRST_*)
2735 *
2736 * Set the given power state to all widgets that have the power control.
2737 * If the codec has power_filter set, it evaluates the power state and
2738 * filter out if it's unchanged as D3.
2739 */
2740void snd_hda_codec_set_power_to_all(struct hda_codec *codec, hda_nid_t fg,
2741 unsigned int power_state)
2742{
2743 hda_nid_t nid;
2744
2745 for_each_hda_codec_node(nid, codec) {
2746 unsigned int wcaps = get_wcaps(codec, nid);
2747 unsigned int state = power_state;
2748 if (!(wcaps & AC_WCAP_POWER))
2749 continue;
2750 if (codec->power_filter) {
2751 state = codec->power_filter(codec, nid, power_state);
2752 if (state != power_state && power_state == AC_PWRST_D3)
2753 continue;
2754 }
2755 snd_hda_codec_write(codec, nid, 0, AC_VERB_SET_POWER_STATE,
2756 state);
2757 }
2758}
2759EXPORT_SYMBOL_GPL(snd_hda_codec_set_power_to_all);
2760
2761/**
2762 * snd_hda_codec_eapd_power_filter - A power filter callback for EAPD
2763 * @codec: the HDA codec
2764 * @nid: widget NID
2765 * @power_state: power state to evalue
2766 *
2767 * Don't power down the widget if it controls eapd and EAPD_BTLENABLE is set.
2768 * This can be used a codec power_filter callback.
2769 */
2770unsigned int snd_hda_codec_eapd_power_filter(struct hda_codec *codec,
2771 hda_nid_t nid,
2772 unsigned int power_state)
2773{
2774 if (nid == codec->core.afg || nid == codec->core.mfg)
2775 return power_state;
2776 if (power_state == AC_PWRST_D3 &&
2777 get_wcaps_type(get_wcaps(codec, nid)) == AC_WID_PIN &&
2778 (snd_hda_query_pin_caps(codec, nid) & AC_PINCAP_EAPD)) {
2779 int eapd = snd_hda_codec_read(codec, nid, 0,
2780 AC_VERB_GET_EAPD_BTLENABLE, 0);
2781 if (eapd & 0x02)
2782 return AC_PWRST_D0;
2783 }
2784 return power_state;
2785}
2786EXPORT_SYMBOL_GPL(snd_hda_codec_eapd_power_filter);
2787
2788/*
2789 * set power state of the codec, and return the power state
2790 */
2791static unsigned int hda_set_power_state(struct hda_codec *codec,
2792 unsigned int power_state)
2793{
2794 hda_nid_t fg = codec->core.afg ? codec->core.afg : codec->core.mfg;
2795 int count;
2796 unsigned int state;
2797 int flags = 0;
2798
2799 /* this delay seems necessary to avoid click noise at power-down */
2800 if (power_state == AC_PWRST_D3) {
2801 if (codec->depop_delay < 0)
2802 msleep(codec_has_epss(codec) ? 10 : 100);
2803 else if (codec->depop_delay > 0)
2804 msleep(codec->depop_delay);
2805 flags = HDA_RW_NO_RESPONSE_FALLBACK;
2806 }
2807
2808 /* repeat power states setting at most 10 times*/
2809 for (count = 0; count < 10; count++) {
2810 if (codec->patch_ops.set_power_state)
2811 codec->patch_ops.set_power_state(codec, fg,
2812 power_state);
2813 else {
2814 state = power_state;
2815 if (codec->power_filter)
2816 state = codec->power_filter(codec, fg, state);
2817 if (state == power_state || power_state != AC_PWRST_D3)
2818 snd_hda_codec_read(codec, fg, flags,
2819 AC_VERB_SET_POWER_STATE,
2820 state);
2821 snd_hda_codec_set_power_to_all(codec, fg, power_state);
2822 }
2823 state = snd_hda_sync_power_state(codec, fg, power_state);
2824 if (!(state & AC_PWRST_ERROR))
2825 break;
2826 }
2827
2828 return state;
2829}
2830
2831/* sync power states of all widgets;
2832 * this is called at the end of codec parsing
2833 */
2834static void sync_power_up_states(struct hda_codec *codec)
2835{
2836 hda_nid_t nid;
2837
2838 /* don't care if no filter is used */
2839 if (!codec->power_filter)
2840 return;
2841
2842 for_each_hda_codec_node(nid, codec) {
2843 unsigned int wcaps = get_wcaps(codec, nid);
2844 unsigned int target;
2845 if (!(wcaps & AC_WCAP_POWER))
2846 continue;
2847 target = codec->power_filter(codec, nid, AC_PWRST_D0);
2848 if (target == AC_PWRST_D0)
2849 continue;
2850 if (!snd_hda_check_power_state(codec, nid, target))
2851 snd_hda_codec_write(codec, nid, 0,
2852 AC_VERB_SET_POWER_STATE, target);
2853 }
2854}
2855
2856#ifdef CONFIG_SND_HDA_RECONFIG
2857/* execute additional init verbs */
2858static void hda_exec_init_verbs(struct hda_codec *codec)
2859{
2860 if (codec->init_verbs.list)
2861 snd_hda_sequence_write(codec, codec->init_verbs.list);
2862}
2863#else
2864static inline void hda_exec_init_verbs(struct hda_codec *codec) {}
2865#endif
2866
2867#ifdef CONFIG_PM
2868/* update the power on/off account with the current jiffies */
2869static void update_power_acct(struct hda_codec *codec, bool on)
2870{
2871 unsigned long delta = jiffies - codec->power_jiffies;
2872
2873 if (on)
2874 codec->power_on_acct += delta;
2875 else
2876 codec->power_off_acct += delta;
2877 codec->power_jiffies += delta;
2878}
2879
2880void snd_hda_update_power_acct(struct hda_codec *codec)
2881{
2882 update_power_acct(codec, hda_codec_is_power_on(codec));
2883}
2884
2885/*
2886 * call suspend and power-down; used both from PM and power-save
2887 * this function returns the power state in the end
2888 */
2889static unsigned int hda_call_codec_suspend(struct hda_codec *codec)
2890{
2891 unsigned int state;
2892
2893 snd_hdac_enter_pm(&codec->core);
2894 if (codec->patch_ops.suspend)
2895 codec->patch_ops.suspend(codec);
2896 hda_cleanup_all_streams(codec);
2897 state = hda_set_power_state(codec, AC_PWRST_D3);
2898 update_power_acct(codec, true);
2899 snd_hdac_leave_pm(&codec->core);
2900 return state;
2901}
2902
2903/*
2904 * kick up codec; used both from PM and power-save
2905 */
2906static void hda_call_codec_resume(struct hda_codec *codec)
2907{
2908 snd_hdac_enter_pm(&codec->core);
2909 if (codec->core.regmap)
2910 regcache_mark_dirty(codec->core.regmap);
2911
2912 codec->power_jiffies = jiffies;
2913
2914 hda_set_power_state(codec, AC_PWRST_D0);
2915 restore_shutup_pins(codec);
2916 hda_exec_init_verbs(codec);
2917 snd_hda_jack_set_dirty_all(codec);
2918 if (codec->patch_ops.resume)
2919 codec->patch_ops.resume(codec);
2920 else {
2921 if (codec->patch_ops.init)
2922 codec->patch_ops.init(codec);
2923 snd_hda_regmap_sync(codec);
2924 }
2925
2926 if (codec->jackpoll_interval)
2927 hda_jackpoll_work(&codec->jackpoll_work.work);
2928 else
2929 snd_hda_jack_report_sync(codec);
2930 codec->core.dev.power.power_state = PMSG_ON;
2931 snd_hdac_leave_pm(&codec->core);
2932}
2933
2934static int hda_codec_runtime_suspend(struct device *dev)
2935{
2936 struct hda_codec *codec = dev_to_hda_codec(dev);
2937 unsigned int state;
2938
2939 /* Nothing to do if card registration fails and the component driver never probes */
2940 if (!codec->card)
2941 return 0;
2942
2943 cancel_delayed_work_sync(&codec->jackpoll_work);
2944 state = hda_call_codec_suspend(codec);
2945 if (codec->link_down_at_suspend ||
2946 (codec_has_clkstop(codec) && codec_has_epss(codec) &&
2947 (state & AC_PWRST_CLK_STOP_OK)))
2948 snd_hdac_codec_link_down(&codec->core);
2949 codec_display_power(codec, false);
2950 return 0;
2951}
2952
2953static int hda_codec_runtime_resume(struct device *dev)
2954{
2955 struct hda_codec *codec = dev_to_hda_codec(dev);
2956
2957 /* Nothing to do if card registration fails and the component driver never probes */
2958 if (!codec->card)
2959 return 0;
2960
2961 codec_display_power(codec, true);
2962 snd_hdac_codec_link_up(&codec->core);
2963 hda_call_codec_resume(codec);
2964 pm_runtime_mark_last_busy(dev);
2965 return 0;
2966}
2967#endif /* CONFIG_PM */
2968
2969#ifdef CONFIG_PM_SLEEP
2970static int hda_codec_force_resume(struct device *dev)
2971{
2972 struct hda_codec *codec = dev_to_hda_codec(dev);
2973 int ret;
2974
2975 ret = pm_runtime_force_resume(dev);
2976 /* schedule jackpoll work for jack detection update */
2977 if (codec->jackpoll_interval ||
2978 (pm_runtime_suspended(dev) && hda_codec_need_resume(codec)))
2979 schedule_delayed_work(&codec->jackpoll_work,
2980 codec->jackpoll_interval);
2981 return ret;
2982}
2983
2984static int hda_codec_pm_suspend(struct device *dev)
2985{
2986 dev->power.power_state = PMSG_SUSPEND;
2987 return pm_runtime_force_suspend(dev);
2988}
2989
2990static int hda_codec_pm_resume(struct device *dev)
2991{
2992 dev->power.power_state = PMSG_RESUME;
2993 return hda_codec_force_resume(dev);
2994}
2995
2996static int hda_codec_pm_freeze(struct device *dev)
2997{
2998 dev->power.power_state = PMSG_FREEZE;
2999 return pm_runtime_force_suspend(dev);
3000}
3001
3002static int hda_codec_pm_thaw(struct device *dev)
3003{
3004 dev->power.power_state = PMSG_THAW;
3005 return hda_codec_force_resume(dev);
3006}
3007
3008static int hda_codec_pm_restore(struct device *dev)
3009{
3010 dev->power.power_state = PMSG_RESTORE;
3011 return hda_codec_force_resume(dev);
3012}
3013#endif /* CONFIG_PM_SLEEP */
3014
3015/* referred in hda_bind.c */
3016const struct dev_pm_ops hda_codec_driver_pm = {
3017#ifdef CONFIG_PM_SLEEP
3018 .suspend = hda_codec_pm_suspend,
3019 .resume = hda_codec_pm_resume,
3020 .freeze = hda_codec_pm_freeze,
3021 .thaw = hda_codec_pm_thaw,
3022 .poweroff = hda_codec_pm_suspend,
3023 .restore = hda_codec_pm_restore,
3024#endif /* CONFIG_PM_SLEEP */
3025 SET_RUNTIME_PM_OPS(hda_codec_runtime_suspend, hda_codec_runtime_resume,
3026 NULL)
3027};
3028
3029/*
3030 * add standard channel maps if not specified
3031 */
3032static int add_std_chmaps(struct hda_codec *codec)
3033{
3034 struct hda_pcm *pcm;
3035 int str, err;
3036
3037 list_for_each_entry(pcm, &codec->pcm_list_head, list) {
3038 for (str = 0; str < 2; str++) {
3039 struct hda_pcm_stream *hinfo = &pcm->stream[str];
3040 struct snd_pcm_chmap *chmap;
3041 const struct snd_pcm_chmap_elem *elem;
3042
3043 if (!pcm->pcm || pcm->own_chmap || !hinfo->substreams)
3044 continue;
3045 elem = hinfo->chmap ? hinfo->chmap : snd_pcm_std_chmaps;
3046 err = snd_pcm_add_chmap_ctls(pcm->pcm, str, elem,
3047 hinfo->channels_max,
3048 0, &chmap);
3049 if (err < 0)
3050 return err;
3051 chmap->channel_mask = SND_PCM_CHMAP_MASK_2468;
3052 }
3053 }
3054 return 0;
3055}
3056
3057/* default channel maps for 2.1 speakers;
3058 * since HD-audio supports only stereo, odd number channels are omitted
3059 */
3060const struct snd_pcm_chmap_elem snd_pcm_2_1_chmaps[] = {
3061 { .channels = 2,
3062 .map = { SNDRV_CHMAP_FL, SNDRV_CHMAP_FR } },
3063 { .channels = 4,
3064 .map = { SNDRV_CHMAP_FL, SNDRV_CHMAP_FR,
3065 SNDRV_CHMAP_LFE, SNDRV_CHMAP_LFE } },
3066 { }
3067};
3068EXPORT_SYMBOL_GPL(snd_pcm_2_1_chmaps);
3069
3070int snd_hda_codec_build_controls(struct hda_codec *codec)
3071{
3072 int err = 0;
3073 hda_exec_init_verbs(codec);
3074 /* continue to initialize... */
3075 if (codec->patch_ops.init)
3076 err = codec->patch_ops.init(codec);
3077 if (!err && codec->patch_ops.build_controls)
3078 err = codec->patch_ops.build_controls(codec);
3079 if (err < 0)
3080 return err;
3081
3082 /* we create chmaps here instead of build_pcms */
3083 err = add_std_chmaps(codec);
3084 if (err < 0)
3085 return err;
3086
3087 if (codec->jackpoll_interval)
3088 hda_jackpoll_work(&codec->jackpoll_work.work);
3089 else
3090 snd_hda_jack_report_sync(codec); /* call at the last init point */
3091 sync_power_up_states(codec);
3092 return 0;
3093}
3094EXPORT_SYMBOL_GPL(snd_hda_codec_build_controls);
3095
3096/*
3097 * PCM stuff
3098 */
3099static int hda_pcm_default_open_close(struct hda_pcm_stream *hinfo,
3100 struct hda_codec *codec,
3101 struct snd_pcm_substream *substream)
3102{
3103 return 0;
3104}
3105
3106static int hda_pcm_default_prepare(struct hda_pcm_stream *hinfo,
3107 struct hda_codec *codec,
3108 unsigned int stream_tag,
3109 unsigned int format,
3110 struct snd_pcm_substream *substream)
3111{
3112 snd_hda_codec_setup_stream(codec, hinfo->nid, stream_tag, 0, format);
3113 return 0;
3114}
3115
3116static int hda_pcm_default_cleanup(struct hda_pcm_stream *hinfo,
3117 struct hda_codec *codec,
3118 struct snd_pcm_substream *substream)
3119{
3120 snd_hda_codec_cleanup_stream(codec, hinfo->nid);
3121 return 0;
3122}
3123
3124static int set_pcm_default_values(struct hda_codec *codec,
3125 struct hda_pcm_stream *info)
3126{
3127 int err;
3128
3129 /* query support PCM information from the given NID */
3130 if (info->nid && (!info->rates || !info->formats)) {
3131 err = snd_hda_query_supported_pcm(codec, info->nid,
3132 info->rates ? NULL : &info->rates,
3133 info->formats ? NULL : &info->formats,
3134 info->maxbps ? NULL : &info->maxbps);
3135 if (err < 0)
3136 return err;
3137 }
3138 if (info->ops.open == NULL)
3139 info->ops.open = hda_pcm_default_open_close;
3140 if (info->ops.close == NULL)
3141 info->ops.close = hda_pcm_default_open_close;
3142 if (info->ops.prepare == NULL) {
3143 if (snd_BUG_ON(!info->nid))
3144 return -EINVAL;
3145 info->ops.prepare = hda_pcm_default_prepare;
3146 }
3147 if (info->ops.cleanup == NULL) {
3148 if (snd_BUG_ON(!info->nid))
3149 return -EINVAL;
3150 info->ops.cleanup = hda_pcm_default_cleanup;
3151 }
3152 return 0;
3153}
3154
3155/*
3156 * codec prepare/cleanup entries
3157 */
3158/**
3159 * snd_hda_codec_prepare - Prepare a stream
3160 * @codec: the HDA codec
3161 * @hinfo: PCM information
3162 * @stream: stream tag to assign
3163 * @format: format id to assign
3164 * @substream: PCM substream to assign
3165 *
3166 * Calls the prepare callback set by the codec with the given arguments.
3167 * Clean up the inactive streams when successful.
3168 */
3169int snd_hda_codec_prepare(struct hda_codec *codec,
3170 struct hda_pcm_stream *hinfo,
3171 unsigned int stream,
3172 unsigned int format,
3173 struct snd_pcm_substream *substream)
3174{
3175 int ret;
3176 mutex_lock(&codec->bus->prepare_mutex);
3177 if (hinfo->ops.prepare)
3178 ret = hinfo->ops.prepare(hinfo, codec, stream, format,
3179 substream);
3180 else
3181 ret = -ENODEV;
3182 if (ret >= 0)
3183 purify_inactive_streams(codec);
3184 mutex_unlock(&codec->bus->prepare_mutex);
3185 return ret;
3186}
3187EXPORT_SYMBOL_GPL(snd_hda_codec_prepare);
3188
3189/**
3190 * snd_hda_codec_cleanup - Clean up stream resources
3191 * @codec: the HDA codec
3192 * @hinfo: PCM information
3193 * @substream: PCM substream
3194 *
3195 * Calls the cleanup callback set by the codec with the given arguments.
3196 */
3197void snd_hda_codec_cleanup(struct hda_codec *codec,
3198 struct hda_pcm_stream *hinfo,
3199 struct snd_pcm_substream *substream)
3200{
3201 mutex_lock(&codec->bus->prepare_mutex);
3202 if (hinfo->ops.cleanup)
3203 hinfo->ops.cleanup(hinfo, codec, substream);
3204 mutex_unlock(&codec->bus->prepare_mutex);
3205}
3206EXPORT_SYMBOL_GPL(snd_hda_codec_cleanup);
3207
3208/* global */
3209const char *snd_hda_pcm_type_name[HDA_PCM_NTYPES] = {
3210 "Audio", "SPDIF", "HDMI", "Modem"
3211};
3212
3213/*
3214 * get the empty PCM device number to assign
3215 */
3216static int get_empty_pcm_device(struct hda_bus *bus, unsigned int type)
3217{
3218 /* audio device indices; not linear to keep compatibility */
3219 /* assigned to static slots up to dev#10; if more needed, assign
3220 * the later slot dynamically (when CONFIG_SND_DYNAMIC_MINORS=y)
3221 */
3222 static const int audio_idx[HDA_PCM_NTYPES][5] = {
3223 [HDA_PCM_TYPE_AUDIO] = { 0, 2, 4, 5, -1 },
3224 [HDA_PCM_TYPE_SPDIF] = { 1, -1 },
3225 [HDA_PCM_TYPE_HDMI] = { 3, 7, 8, 9, -1 },
3226 [HDA_PCM_TYPE_MODEM] = { 6, -1 },
3227 };
3228 int i;
3229
3230 if (type >= HDA_PCM_NTYPES) {
3231 dev_err(bus->card->dev, "Invalid PCM type %d\n", type);
3232 return -EINVAL;
3233 }
3234
3235 for (i = 0; audio_idx[type][i] >= 0; i++) {
3236#ifndef CONFIG_SND_DYNAMIC_MINORS
3237 if (audio_idx[type][i] >= 8)
3238 break;
3239#endif
3240 if (!test_and_set_bit(audio_idx[type][i], bus->pcm_dev_bits))
3241 return audio_idx[type][i];
3242 }
3243
3244#ifdef CONFIG_SND_DYNAMIC_MINORS
3245 /* non-fixed slots starting from 10 */
3246 for (i = 10; i < 32; i++) {
3247 if (!test_and_set_bit(i, bus->pcm_dev_bits))
3248 return i;
3249 }
3250#endif
3251
3252 dev_warn(bus->card->dev, "Too many %s devices\n",
3253 snd_hda_pcm_type_name[type]);
3254#ifndef CONFIG_SND_DYNAMIC_MINORS
3255 dev_warn(bus->card->dev,
3256 "Consider building the kernel with CONFIG_SND_DYNAMIC_MINORS=y\n");
3257#endif
3258 return -EAGAIN;
3259}
3260
3261/* call build_pcms ops of the given codec and set up the default parameters */
3262int snd_hda_codec_parse_pcms(struct hda_codec *codec)
3263{
3264 struct hda_pcm *cpcm;
3265 int err;
3266
3267 if (!list_empty(&codec->pcm_list_head))
3268 return 0; /* already parsed */
3269
3270 if (!codec->patch_ops.build_pcms)
3271 return 0;
3272
3273 err = codec->patch_ops.build_pcms(codec);
3274 if (err < 0) {
3275 codec_err(codec, "cannot build PCMs for #%d (error %d)\n",
3276 codec->core.addr, err);
3277 return err;
3278 }
3279
3280 list_for_each_entry(cpcm, &codec->pcm_list_head, list) {
3281 int stream;
3282
3283 for (stream = 0; stream < 2; stream++) {
3284 struct hda_pcm_stream *info = &cpcm->stream[stream];
3285
3286 if (!info->substreams)
3287 continue;
3288 err = set_pcm_default_values(codec, info);
3289 if (err < 0) {
3290 codec_warn(codec,
3291 "fail to setup default for PCM %s\n",
3292 cpcm->name);
3293 return err;
3294 }
3295 }
3296 }
3297
3298 return 0;
3299}
3300EXPORT_SYMBOL_GPL(snd_hda_codec_parse_pcms);
3301
3302/* assign all PCMs of the given codec */
3303int snd_hda_codec_build_pcms(struct hda_codec *codec)
3304{
3305 struct hda_bus *bus = codec->bus;
3306 struct hda_pcm *cpcm;
3307 int dev, err;
3308
3309 err = snd_hda_codec_parse_pcms(codec);
3310 if (err < 0)
3311 return err;
3312
3313 /* attach a new PCM streams */
3314 list_for_each_entry(cpcm, &codec->pcm_list_head, list) {
3315 if (cpcm->pcm)
3316 continue; /* already attached */
3317 if (!cpcm->stream[0].substreams && !cpcm->stream[1].substreams)
3318 continue; /* no substreams assigned */
3319
3320 dev = get_empty_pcm_device(bus, cpcm->pcm_type);
3321 if (dev < 0) {
3322 cpcm->device = SNDRV_PCM_INVALID_DEVICE;
3323 continue; /* no fatal error */
3324 }
3325 cpcm->device = dev;
3326 err = snd_hda_attach_pcm_stream(bus, codec, cpcm);
3327 if (err < 0) {
3328 codec_err(codec,
3329 "cannot attach PCM stream %d for codec #%d\n",
3330 dev, codec->core.addr);
3331 continue; /* no fatal error */
3332 }
3333 }
3334
3335 return 0;
3336}
3337
3338/**
3339 * snd_hda_add_new_ctls - create controls from the array
3340 * @codec: the HDA codec
3341 * @knew: the array of struct snd_kcontrol_new
3342 *
3343 * This helper function creates and add new controls in the given array.
3344 * The array must be terminated with an empty entry as terminator.
3345 *
3346 * Returns 0 if successful, or a negative error code.
3347 */
3348int snd_hda_add_new_ctls(struct hda_codec *codec,
3349 const struct snd_kcontrol_new *knew)
3350{
3351 int err;
3352
3353 for (; knew->name; knew++) {
3354 struct snd_kcontrol *kctl;
3355 int addr = 0, idx = 0;
3356 if (knew->iface == (__force snd_ctl_elem_iface_t)-1)
3357 continue; /* skip this codec private value */
3358 for (;;) {
3359 kctl = snd_ctl_new1(knew, codec);
3360 if (!kctl)
3361 return -ENOMEM;
3362 if (addr > 0)
3363 kctl->id.device = addr;
3364 if (idx > 0)
3365 kctl->id.index = idx;
3366 err = snd_hda_ctl_add(codec, 0, kctl);
3367 if (!err)
3368 break;
3369 /* try first with another device index corresponding to
3370 * the codec addr; if it still fails (or it's the
3371 * primary codec), then try another control index
3372 */
3373 if (!addr && codec->core.addr)
3374 addr = codec->core.addr;
3375 else if (!idx && !knew->index) {
3376 idx = find_empty_mixer_ctl_idx(codec,
3377 knew->name, 0);
3378 if (idx <= 0)
3379 return err;
3380 } else
3381 return err;
3382 }
3383 }
3384 return 0;
3385}
3386EXPORT_SYMBOL_GPL(snd_hda_add_new_ctls);
3387
3388#ifdef CONFIG_PM
3389static void codec_set_power_save(struct hda_codec *codec, int delay)
3390{
3391 struct device *dev = hda_codec_dev(codec);
3392
3393 if (delay == 0 && codec->auto_runtime_pm)
3394 delay = 3000;
3395
3396 if (delay > 0) {
3397 pm_runtime_set_autosuspend_delay(dev, delay);
3398 pm_runtime_use_autosuspend(dev);
3399 pm_runtime_allow(dev);
3400 if (!pm_runtime_suspended(dev))
3401 pm_runtime_mark_last_busy(dev);
3402 } else {
3403 pm_runtime_dont_use_autosuspend(dev);
3404 pm_runtime_forbid(dev);
3405 }
3406}
3407
3408/**
3409 * snd_hda_set_power_save - reprogram autosuspend for the given delay
3410 * @bus: HD-audio bus
3411 * @delay: autosuspend delay in msec, 0 = off
3412 *
3413 * Synchronize the runtime PM autosuspend state from the power_save option.
3414 */
3415void snd_hda_set_power_save(struct hda_bus *bus, int delay)
3416{
3417 struct hda_codec *c;
3418
3419 list_for_each_codec(c, bus)
3420 codec_set_power_save(c, delay);
3421}
3422EXPORT_SYMBOL_GPL(snd_hda_set_power_save);
3423
3424/**
3425 * snd_hda_check_amp_list_power - Check the amp list and update the power
3426 * @codec: HD-audio codec
3427 * @check: the object containing an AMP list and the status
3428 * @nid: NID to check / update
3429 *
3430 * Check whether the given NID is in the amp list. If it's in the list,
3431 * check the current AMP status, and update the power-status according
3432 * to the mute status.
3433 *
3434 * This function is supposed to be set or called from the check_power_status
3435 * patch ops.
3436 */
3437int snd_hda_check_amp_list_power(struct hda_codec *codec,
3438 struct hda_loopback_check *check,
3439 hda_nid_t nid)
3440{
3441 const struct hda_amp_list *p;
3442 int ch, v;
3443
3444 if (!check->amplist)
3445 return 0;
3446 for (p = check->amplist; p->nid; p++) {
3447 if (p->nid == nid)
3448 break;
3449 }
3450 if (!p->nid)
3451 return 0; /* nothing changed */
3452
3453 for (p = check->amplist; p->nid; p++) {
3454 for (ch = 0; ch < 2; ch++) {
3455 v = snd_hda_codec_amp_read(codec, p->nid, ch, p->dir,
3456 p->idx);
3457 if (!(v & HDA_AMP_MUTE) && v > 0) {
3458 if (!check->power_on) {
3459 check->power_on = 1;
3460 snd_hda_power_up_pm(codec);
3461 }
3462 return 1;
3463 }
3464 }
3465 }
3466 if (check->power_on) {
3467 check->power_on = 0;
3468 snd_hda_power_down_pm(codec);
3469 }
3470 return 0;
3471}
3472EXPORT_SYMBOL_GPL(snd_hda_check_amp_list_power);
3473#endif
3474
3475/*
3476 * input MUX helper
3477 */
3478
3479/**
3480 * snd_hda_input_mux_info_info - Info callback helper for the input-mux enum
3481 * @imux: imux helper object
3482 * @uinfo: pointer to get/store the data
3483 */
3484int snd_hda_input_mux_info(const struct hda_input_mux *imux,
3485 struct snd_ctl_elem_info *uinfo)
3486{
3487 unsigned int index;
3488
3489 uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
3490 uinfo->count = 1;
3491 uinfo->value.enumerated.items = imux->num_items;
3492 if (!imux->num_items)
3493 return 0;
3494 index = uinfo->value.enumerated.item;
3495 if (index >= imux->num_items)
3496 index = imux->num_items - 1;
3497 strcpy(uinfo->value.enumerated.name, imux->items[index].label);
3498 return 0;
3499}
3500EXPORT_SYMBOL_GPL(snd_hda_input_mux_info);
3501
3502/**
3503 * snd_hda_input_mux_info_put - Put callback helper for the input-mux enum
3504 * @codec: the HDA codec
3505 * @imux: imux helper object
3506 * @ucontrol: pointer to get/store the data
3507 * @nid: input mux NID
3508 * @cur_val: pointer to get/store the current imux value
3509 */
3510int snd_hda_input_mux_put(struct hda_codec *codec,
3511 const struct hda_input_mux *imux,
3512 struct snd_ctl_elem_value *ucontrol,
3513 hda_nid_t nid,
3514 unsigned int *cur_val)
3515{
3516 unsigned int idx;
3517
3518 if (!imux->num_items)
3519 return 0;
3520 idx = ucontrol->value.enumerated.item[0];
3521 if (idx >= imux->num_items)
3522 idx = imux->num_items - 1;
3523 if (*cur_val == idx)
3524 return 0;
3525 snd_hda_codec_write_cache(codec, nid, 0, AC_VERB_SET_CONNECT_SEL,
3526 imux->items[idx].index);
3527 *cur_val = idx;
3528 return 1;
3529}
3530EXPORT_SYMBOL_GPL(snd_hda_input_mux_put);
3531
3532
3533/**
3534 * snd_hda_enum_helper_info - Helper for simple enum ctls
3535 * @kcontrol: ctl element
3536 * @uinfo: pointer to get/store the data
3537 * @num_items: number of enum items
3538 * @texts: enum item string array
3539 *
3540 * process kcontrol info callback of a simple string enum array
3541 * when @num_items is 0 or @texts is NULL, assume a boolean enum array
3542 */
3543int snd_hda_enum_helper_info(struct snd_kcontrol *kcontrol,
3544 struct snd_ctl_elem_info *uinfo,
3545 int num_items, const char * const *texts)
3546{
3547 static const char * const texts_default[] = {
3548 "Disabled", "Enabled"
3549 };
3550
3551 if (!texts || !num_items) {
3552 num_items = 2;
3553 texts = texts_default;
3554 }
3555
3556 return snd_ctl_enum_info(uinfo, 1, num_items, texts);
3557}
3558EXPORT_SYMBOL_GPL(snd_hda_enum_helper_info);
3559
3560/*
3561 * Multi-channel / digital-out PCM helper functions
3562 */
3563
3564/* setup SPDIF output stream */
3565static void setup_dig_out_stream(struct hda_codec *codec, hda_nid_t nid,
3566 unsigned int stream_tag, unsigned int format)
3567{
3568 struct hda_spdif_out *spdif;
3569 unsigned int curr_fmt;
3570 bool reset;
3571
3572 spdif = snd_hda_spdif_out_of_nid(codec, nid);
3573 /* Add sanity check to pass klockwork check.
3574 * This should never happen.
3575 */
3576 if (WARN_ON(spdif == NULL))
3577 return;
3578
3579 curr_fmt = snd_hda_codec_read(codec, nid, 0,
3580 AC_VERB_GET_STREAM_FORMAT, 0);
3581 reset = codec->spdif_status_reset &&
3582 (spdif->ctls & AC_DIG1_ENABLE) &&
3583 curr_fmt != format;
3584
3585 /* turn off SPDIF if needed; otherwise the IEC958 bits won't be
3586 updated */
3587 if (reset)
3588 set_dig_out_convert(codec, nid,
3589 spdif->ctls & ~AC_DIG1_ENABLE & 0xff,
3590 -1);
3591 snd_hda_codec_setup_stream(codec, nid, stream_tag, 0, format);
3592 if (codec->follower_dig_outs) {
3593 const hda_nid_t *d;
3594 for (d = codec->follower_dig_outs; *d; d++)
3595 snd_hda_codec_setup_stream(codec, *d, stream_tag, 0,
3596 format);
3597 }
3598 /* turn on again (if needed) */
3599 if (reset)
3600 set_dig_out_convert(codec, nid,
3601 spdif->ctls & 0xff, -1);
3602}
3603
3604static void cleanup_dig_out_stream(struct hda_codec *codec, hda_nid_t nid)
3605{
3606 snd_hda_codec_cleanup_stream(codec, nid);
3607 if (codec->follower_dig_outs) {
3608 const hda_nid_t *d;
3609 for (d = codec->follower_dig_outs; *d; d++)
3610 snd_hda_codec_cleanup_stream(codec, *d);
3611 }
3612}
3613
3614/**
3615 * snd_hda_multi_out_dig_open - open the digital out in the exclusive mode
3616 * @codec: the HDA codec
3617 * @mout: hda_multi_out object
3618 */
3619int snd_hda_multi_out_dig_open(struct hda_codec *codec,
3620 struct hda_multi_out *mout)
3621{
3622 mutex_lock(&codec->spdif_mutex);
3623 if (mout->dig_out_used == HDA_DIG_ANALOG_DUP)
3624 /* already opened as analog dup; reset it once */
3625 cleanup_dig_out_stream(codec, mout->dig_out_nid);
3626 mout->dig_out_used = HDA_DIG_EXCLUSIVE;
3627 mutex_unlock(&codec->spdif_mutex);
3628 return 0;
3629}
3630EXPORT_SYMBOL_GPL(snd_hda_multi_out_dig_open);
3631
3632/**
3633 * snd_hda_multi_out_dig_prepare - prepare the digital out stream
3634 * @codec: the HDA codec
3635 * @mout: hda_multi_out object
3636 * @stream_tag: stream tag to assign
3637 * @format: format id to assign
3638 * @substream: PCM substream to assign
3639 */
3640int snd_hda_multi_out_dig_prepare(struct hda_codec *codec,
3641 struct hda_multi_out *mout,
3642 unsigned int stream_tag,
3643 unsigned int format,
3644 struct snd_pcm_substream *substream)
3645{
3646 mutex_lock(&codec->spdif_mutex);
3647 setup_dig_out_stream(codec, mout->dig_out_nid, stream_tag, format);
3648 mutex_unlock(&codec->spdif_mutex);
3649 return 0;
3650}
3651EXPORT_SYMBOL_GPL(snd_hda_multi_out_dig_prepare);
3652
3653/**
3654 * snd_hda_multi_out_dig_cleanup - clean-up the digital out stream
3655 * @codec: the HDA codec
3656 * @mout: hda_multi_out object
3657 */
3658int snd_hda_multi_out_dig_cleanup(struct hda_codec *codec,
3659 struct hda_multi_out *mout)
3660{
3661 mutex_lock(&codec->spdif_mutex);
3662 cleanup_dig_out_stream(codec, mout->dig_out_nid);
3663 mutex_unlock(&codec->spdif_mutex);
3664 return 0;
3665}
3666EXPORT_SYMBOL_GPL(snd_hda_multi_out_dig_cleanup);
3667
3668/**
3669 * snd_hda_multi_out_dig_close - release the digital out stream
3670 * @codec: the HDA codec
3671 * @mout: hda_multi_out object
3672 */
3673int snd_hda_multi_out_dig_close(struct hda_codec *codec,
3674 struct hda_multi_out *mout)
3675{
3676 mutex_lock(&codec->spdif_mutex);
3677 mout->dig_out_used = 0;
3678 mutex_unlock(&codec->spdif_mutex);
3679 return 0;
3680}
3681EXPORT_SYMBOL_GPL(snd_hda_multi_out_dig_close);
3682
3683/**
3684 * snd_hda_multi_out_analog_open - open analog outputs
3685 * @codec: the HDA codec
3686 * @mout: hda_multi_out object
3687 * @substream: PCM substream to assign
3688 * @hinfo: PCM information to assign
3689 *
3690 * Open analog outputs and set up the hw-constraints.
3691 * If the digital outputs can be opened as follower, open the digital
3692 * outputs, too.
3693 */
3694int snd_hda_multi_out_analog_open(struct hda_codec *codec,
3695 struct hda_multi_out *mout,
3696 struct snd_pcm_substream *substream,
3697 struct hda_pcm_stream *hinfo)
3698{
3699 struct snd_pcm_runtime *runtime = substream->runtime;
3700 runtime->hw.channels_max = mout->max_channels;
3701 if (mout->dig_out_nid) {
3702 if (!mout->analog_rates) {
3703 mout->analog_rates = hinfo->rates;
3704 mout->analog_formats = hinfo->formats;
3705 mout->analog_maxbps = hinfo->maxbps;
3706 } else {
3707 runtime->hw.rates = mout->analog_rates;
3708 runtime->hw.formats = mout->analog_formats;
3709 hinfo->maxbps = mout->analog_maxbps;
3710 }
3711 if (!mout->spdif_rates) {
3712 snd_hda_query_supported_pcm(codec, mout->dig_out_nid,
3713 &mout->spdif_rates,
3714 &mout->spdif_formats,
3715 &mout->spdif_maxbps);
3716 }
3717 mutex_lock(&codec->spdif_mutex);
3718 if (mout->share_spdif) {
3719 if ((runtime->hw.rates & mout->spdif_rates) &&
3720 (runtime->hw.formats & mout->spdif_formats)) {
3721 runtime->hw.rates &= mout->spdif_rates;
3722 runtime->hw.formats &= mout->spdif_formats;
3723 if (mout->spdif_maxbps < hinfo->maxbps)
3724 hinfo->maxbps = mout->spdif_maxbps;
3725 } else {
3726 mout->share_spdif = 0;
3727 /* FIXME: need notify? */
3728 }
3729 }
3730 mutex_unlock(&codec->spdif_mutex);
3731 }
3732 return snd_pcm_hw_constraint_step(substream->runtime, 0,
3733 SNDRV_PCM_HW_PARAM_CHANNELS, 2);
3734}
3735EXPORT_SYMBOL_GPL(snd_hda_multi_out_analog_open);
3736
3737/**
3738 * snd_hda_multi_out_analog_prepare - Preapre the analog outputs.
3739 * @codec: the HDA codec
3740 * @mout: hda_multi_out object
3741 * @stream_tag: stream tag to assign
3742 * @format: format id to assign
3743 * @substream: PCM substream to assign
3744 *
3745 * Set up the i/o for analog out.
3746 * When the digital out is available, copy the front out to digital out, too.
3747 */
3748int snd_hda_multi_out_analog_prepare(struct hda_codec *codec,
3749 struct hda_multi_out *mout,
3750 unsigned int stream_tag,
3751 unsigned int format,
3752 struct snd_pcm_substream *substream)
3753{
3754 const hda_nid_t *nids = mout->dac_nids;
3755 int chs = substream->runtime->channels;
3756 struct hda_spdif_out *spdif;
3757 int i;
3758
3759 mutex_lock(&codec->spdif_mutex);
3760 spdif = snd_hda_spdif_out_of_nid(codec, mout->dig_out_nid);
3761 if (mout->dig_out_nid && mout->share_spdif &&
3762 mout->dig_out_used != HDA_DIG_EXCLUSIVE) {
3763 if (chs == 2 && spdif != NULL &&
3764 snd_hda_is_supported_format(codec, mout->dig_out_nid,
3765 format) &&
3766 !(spdif->status & IEC958_AES0_NONAUDIO)) {
3767 mout->dig_out_used = HDA_DIG_ANALOG_DUP;
3768 setup_dig_out_stream(codec, mout->dig_out_nid,
3769 stream_tag, format);
3770 } else {
3771 mout->dig_out_used = 0;
3772 cleanup_dig_out_stream(codec, mout->dig_out_nid);
3773 }
3774 }
3775 mutex_unlock(&codec->spdif_mutex);
3776
3777 /* front */
3778 snd_hda_codec_setup_stream(codec, nids[HDA_FRONT], stream_tag,
3779 0, format);
3780 if (!mout->no_share_stream &&
3781 mout->hp_nid && mout->hp_nid != nids[HDA_FRONT])
3782 /* headphone out will just decode front left/right (stereo) */
3783 snd_hda_codec_setup_stream(codec, mout->hp_nid, stream_tag,
3784 0, format);
3785 /* extra outputs copied from front */
3786 for (i = 0; i < ARRAY_SIZE(mout->hp_out_nid); i++)
3787 if (!mout->no_share_stream && mout->hp_out_nid[i])
3788 snd_hda_codec_setup_stream(codec,
3789 mout->hp_out_nid[i],
3790 stream_tag, 0, format);
3791
3792 /* surrounds */
3793 for (i = 1; i < mout->num_dacs; i++) {
3794 if (chs >= (i + 1) * 2) /* independent out */
3795 snd_hda_codec_setup_stream(codec, nids[i], stream_tag,
3796 i * 2, format);
3797 else if (!mout->no_share_stream) /* copy front */
3798 snd_hda_codec_setup_stream(codec, nids[i], stream_tag,
3799 0, format);
3800 }
3801
3802 /* extra surrounds */
3803 for (i = 0; i < ARRAY_SIZE(mout->extra_out_nid); i++) {
3804 int ch = 0;
3805 if (!mout->extra_out_nid[i])
3806 break;
3807 if (chs >= (i + 1) * 2)
3808 ch = i * 2;
3809 else if (!mout->no_share_stream)
3810 break;
3811 snd_hda_codec_setup_stream(codec, mout->extra_out_nid[i],
3812 stream_tag, ch, format);
3813 }
3814
3815 return 0;
3816}
3817EXPORT_SYMBOL_GPL(snd_hda_multi_out_analog_prepare);
3818
3819/**
3820 * snd_hda_multi_out_analog_cleanup - clean up the setting for analog out
3821 * @codec: the HDA codec
3822 * @mout: hda_multi_out object
3823 */
3824int snd_hda_multi_out_analog_cleanup(struct hda_codec *codec,
3825 struct hda_multi_out *mout)
3826{
3827 const hda_nid_t *nids = mout->dac_nids;
3828 int i;
3829
3830 for (i = 0; i < mout->num_dacs; i++)
3831 snd_hda_codec_cleanup_stream(codec, nids[i]);
3832 if (mout->hp_nid)
3833 snd_hda_codec_cleanup_stream(codec, mout->hp_nid);
3834 for (i = 0; i < ARRAY_SIZE(mout->hp_out_nid); i++)
3835 if (mout->hp_out_nid[i])
3836 snd_hda_codec_cleanup_stream(codec,
3837 mout->hp_out_nid[i]);
3838 for (i = 0; i < ARRAY_SIZE(mout->extra_out_nid); i++)
3839 if (mout->extra_out_nid[i])
3840 snd_hda_codec_cleanup_stream(codec,
3841 mout->extra_out_nid[i]);
3842 mutex_lock(&codec->spdif_mutex);
3843 if (mout->dig_out_nid && mout->dig_out_used == HDA_DIG_ANALOG_DUP) {
3844 cleanup_dig_out_stream(codec, mout->dig_out_nid);
3845 mout->dig_out_used = 0;
3846 }
3847 mutex_unlock(&codec->spdif_mutex);
3848 return 0;
3849}
3850EXPORT_SYMBOL_GPL(snd_hda_multi_out_analog_cleanup);
3851
3852/**
3853 * snd_hda_get_default_vref - Get the default (mic) VREF pin bits
3854 * @codec: the HDA codec
3855 * @pin: referred pin NID
3856 *
3857 * Guess the suitable VREF pin bits to be set as the pin-control value.
3858 * Note: the function doesn't set the AC_PINCTL_IN_EN bit.
3859 */
3860unsigned int snd_hda_get_default_vref(struct hda_codec *codec, hda_nid_t pin)
3861{
3862 unsigned int pincap;
3863 unsigned int oldval;
3864 oldval = snd_hda_codec_read(codec, pin, 0,
3865 AC_VERB_GET_PIN_WIDGET_CONTROL, 0);
3866 pincap = snd_hda_query_pin_caps(codec, pin);
3867 pincap = (pincap & AC_PINCAP_VREF) >> AC_PINCAP_VREF_SHIFT;
3868 /* Exception: if the default pin setup is vref50, we give it priority */
3869 if ((pincap & AC_PINCAP_VREF_80) && oldval != PIN_VREF50)
3870 return AC_PINCTL_VREF_80;
3871 else if (pincap & AC_PINCAP_VREF_50)
3872 return AC_PINCTL_VREF_50;
3873 else if (pincap & AC_PINCAP_VREF_100)
3874 return AC_PINCTL_VREF_100;
3875 else if (pincap & AC_PINCAP_VREF_GRD)
3876 return AC_PINCTL_VREF_GRD;
3877 return AC_PINCTL_VREF_HIZ;
3878}
3879EXPORT_SYMBOL_GPL(snd_hda_get_default_vref);
3880
3881/**
3882 * snd_hda_correct_pin_ctl - correct the pin ctl value for matching with the pin cap
3883 * @codec: the HDA codec
3884 * @pin: referred pin NID
3885 * @val: pin ctl value to audit
3886 */
3887unsigned int snd_hda_correct_pin_ctl(struct hda_codec *codec,
3888 hda_nid_t pin, unsigned int val)
3889{
3890 static const unsigned int cap_lists[][2] = {
3891 { AC_PINCTL_VREF_100, AC_PINCAP_VREF_100 },
3892 { AC_PINCTL_VREF_80, AC_PINCAP_VREF_80 },
3893 { AC_PINCTL_VREF_50, AC_PINCAP_VREF_50 },
3894 { AC_PINCTL_VREF_GRD, AC_PINCAP_VREF_GRD },
3895 };
3896 unsigned int cap;
3897
3898 if (!val)
3899 return 0;
3900 cap = snd_hda_query_pin_caps(codec, pin);
3901 if (!cap)
3902 return val; /* don't know what to do... */
3903
3904 if (val & AC_PINCTL_OUT_EN) {
3905 if (!(cap & AC_PINCAP_OUT))
3906 val &= ~(AC_PINCTL_OUT_EN | AC_PINCTL_HP_EN);
3907 else if ((val & AC_PINCTL_HP_EN) && !(cap & AC_PINCAP_HP_DRV))
3908 val &= ~AC_PINCTL_HP_EN;
3909 }
3910
3911 if (val & AC_PINCTL_IN_EN) {
3912 if (!(cap & AC_PINCAP_IN))
3913 val &= ~(AC_PINCTL_IN_EN | AC_PINCTL_VREFEN);
3914 else {
3915 unsigned int vcap, vref;
3916 int i;
3917 vcap = (cap & AC_PINCAP_VREF) >> AC_PINCAP_VREF_SHIFT;
3918 vref = val & AC_PINCTL_VREFEN;
3919 for (i = 0; i < ARRAY_SIZE(cap_lists); i++) {
3920 if (vref == cap_lists[i][0] &&
3921 !(vcap & cap_lists[i][1])) {
3922 if (i == ARRAY_SIZE(cap_lists) - 1)
3923 vref = AC_PINCTL_VREF_HIZ;
3924 else
3925 vref = cap_lists[i + 1][0];
3926 }
3927 }
3928 val &= ~AC_PINCTL_VREFEN;
3929 val |= vref;
3930 }
3931 }
3932
3933 return val;
3934}
3935EXPORT_SYMBOL_GPL(snd_hda_correct_pin_ctl);
3936
3937/**
3938 * _snd_hda_pin_ctl - Helper to set pin ctl value
3939 * @codec: the HDA codec
3940 * @pin: referred pin NID
3941 * @val: pin control value to set
3942 * @cached: access over codec pinctl cache or direct write
3943 *
3944 * This function is a helper to set a pin ctl value more safely.
3945 * It corrects the pin ctl value via snd_hda_correct_pin_ctl(), stores the
3946 * value in pin target array via snd_hda_codec_set_pin_target(), then
3947 * actually writes the value via either snd_hda_codec_write_cache() or
3948 * snd_hda_codec_write() depending on @cached flag.
3949 */
3950int _snd_hda_set_pin_ctl(struct hda_codec *codec, hda_nid_t pin,
3951 unsigned int val, bool cached)
3952{
3953 val = snd_hda_correct_pin_ctl(codec, pin, val);
3954 snd_hda_codec_set_pin_target(codec, pin, val);
3955 if (cached)
3956 return snd_hda_codec_write_cache(codec, pin, 0,
3957 AC_VERB_SET_PIN_WIDGET_CONTROL, val);
3958 else
3959 return snd_hda_codec_write(codec, pin, 0,
3960 AC_VERB_SET_PIN_WIDGET_CONTROL, val);
3961}
3962EXPORT_SYMBOL_GPL(_snd_hda_set_pin_ctl);
3963
3964/**
3965 * snd_hda_add_imux_item - Add an item to input_mux
3966 * @codec: the HDA codec
3967 * @imux: imux helper object
3968 * @label: the name of imux item to assign
3969 * @index: index number of imux item to assign
3970 * @type_idx: pointer to store the resultant label index
3971 *
3972 * When the same label is used already in the existing items, the number
3973 * suffix is appended to the label. This label index number is stored
3974 * to type_idx when non-NULL pointer is given.
3975 */
3976int snd_hda_add_imux_item(struct hda_codec *codec,
3977 struct hda_input_mux *imux, const char *label,
3978 int index, int *type_idx)
3979{
3980 int i, label_idx = 0;
3981 if (imux->num_items >= HDA_MAX_NUM_INPUTS) {
3982 codec_err(codec, "hda_codec: Too many imux items!\n");
3983 return -EINVAL;
3984 }
3985 for (i = 0; i < imux->num_items; i++) {
3986 if (!strncmp(label, imux->items[i].label, strlen(label)))
3987 label_idx++;
3988 }
3989 if (type_idx)
3990 *type_idx = label_idx;
3991 if (label_idx > 0)
3992 snprintf(imux->items[imux->num_items].label,
3993 sizeof(imux->items[imux->num_items].label),
3994 "%s %d", label, label_idx);
3995 else
3996 strlcpy(imux->items[imux->num_items].label, label,
3997 sizeof(imux->items[imux->num_items].label));
3998 imux->items[imux->num_items].index = index;
3999 imux->num_items++;
4000 return 0;
4001}
4002EXPORT_SYMBOL_GPL(snd_hda_add_imux_item);
4003
4004/**
4005 * snd_hda_bus_reset_codecs - Reset the bus
4006 * @bus: HD-audio bus
4007 */
4008void snd_hda_bus_reset_codecs(struct hda_bus *bus)
4009{
4010 struct hda_codec *codec;
4011
4012 list_for_each_codec(codec, bus) {
4013 /* FIXME: maybe a better way needed for forced reset */
4014 if (current_work() != &codec->jackpoll_work.work)
4015 cancel_delayed_work_sync(&codec->jackpoll_work);
4016#ifdef CONFIG_PM
4017 if (hda_codec_is_power_on(codec)) {
4018 hda_call_codec_suspend(codec);
4019 hda_call_codec_resume(codec);
4020 }
4021#endif
4022 }
4023}
4024
4025/**
4026 * snd_print_pcm_bits - Print the supported PCM fmt bits to the string buffer
4027 * @pcm: PCM caps bits
4028 * @buf: the string buffer to write
4029 * @buflen: the max buffer length
4030 *
4031 * used by hda_proc.c and hda_eld.c
4032 */
4033void snd_print_pcm_bits(int pcm, char *buf, int buflen)
4034{
4035 static const unsigned int bits[] = { 8, 16, 20, 24, 32 };
4036 int i, j;
4037
4038 for (i = 0, j = 0; i < ARRAY_SIZE(bits); i++)
4039 if (pcm & (AC_SUPPCM_BITS_8 << i))
4040 j += scnprintf(buf + j, buflen - j, " %d", bits[i]);
4041
4042 buf[j] = '\0'; /* necessary when j == 0 */
4043}
4044EXPORT_SYMBOL_GPL(snd_print_pcm_bits);
4045
4046MODULE_DESCRIPTION("HDA codec core");
4047MODULE_LICENSE("GPL");
1// SPDX-License-Identifier: GPL-2.0-or-later
2/*
3 * Universal Interface for Intel High Definition Audio Codec
4 *
5 * Copyright (c) 2004 Takashi Iwai <tiwai@suse.de>
6 */
7
8#include <linux/init.h>
9#include <linux/delay.h>
10#include <linux/slab.h>
11#include <linux/mutex.h>
12#include <linux/module.h>
13#include <linux/pm.h>
14#include <linux/pm_runtime.h>
15#include <sound/core.h>
16#include <sound/hda_codec.h>
17#include <sound/asoundef.h>
18#include <sound/tlv.h>
19#include <sound/initval.h>
20#include <sound/jack.h>
21#include "hda_local.h"
22#include "hda_beep.h"
23#include "hda_jack.h"
24#include <sound/hda_hwdep.h>
25#include <sound/hda_component.h>
26
27#define codec_in_pm(codec) snd_hdac_is_in_pm(&codec->core)
28#define hda_codec_is_power_on(codec) snd_hdac_is_power_on(&codec->core)
29#define codec_has_epss(codec) \
30 ((codec)->core.power_caps & AC_PWRST_EPSS)
31#define codec_has_clkstop(codec) \
32 ((codec)->core.power_caps & AC_PWRST_CLKSTOP)
33
34/*
35 * Send and receive a verb - passed to exec_verb override for hdac_device
36 */
37static int codec_exec_verb(struct hdac_device *dev, unsigned int cmd,
38 unsigned int flags, unsigned int *res)
39{
40 struct hda_codec *codec = container_of(dev, struct hda_codec, core);
41 struct hda_bus *bus = codec->bus;
42 int err;
43
44 if (cmd == ~0)
45 return -1;
46
47 again:
48 snd_hda_power_up_pm(codec);
49 mutex_lock(&bus->core.cmd_mutex);
50 if (flags & HDA_RW_NO_RESPONSE_FALLBACK)
51 bus->no_response_fallback = 1;
52 err = snd_hdac_bus_exec_verb_unlocked(&bus->core, codec->core.addr,
53 cmd, res);
54 bus->no_response_fallback = 0;
55 mutex_unlock(&bus->core.cmd_mutex);
56 snd_hda_power_down_pm(codec);
57 if (!codec_in_pm(codec) && res && err == -EAGAIN) {
58 if (bus->response_reset) {
59 codec_dbg(codec,
60 "resetting BUS due to fatal communication error\n");
61 snd_hda_bus_reset(bus);
62 }
63 goto again;
64 }
65 /* clear reset-flag when the communication gets recovered */
66 if (!err || codec_in_pm(codec))
67 bus->response_reset = 0;
68 return err;
69}
70
71/**
72 * snd_hda_sequence_write - sequence writes
73 * @codec: the HDA codec
74 * @seq: VERB array to send
75 *
76 * Send the commands sequentially from the given array.
77 * The array must be terminated with NID=0.
78 */
79void snd_hda_sequence_write(struct hda_codec *codec, const struct hda_verb *seq)
80{
81 for (; seq->nid; seq++)
82 snd_hda_codec_write(codec, seq->nid, 0, seq->verb, seq->param);
83}
84EXPORT_SYMBOL_GPL(snd_hda_sequence_write);
85
86/* connection list element */
87struct hda_conn_list {
88 struct list_head list;
89 int len;
90 hda_nid_t nid;
91 hda_nid_t conns[0];
92};
93
94/* look up the cached results */
95static struct hda_conn_list *
96lookup_conn_list(struct hda_codec *codec, hda_nid_t nid)
97{
98 struct hda_conn_list *p;
99 list_for_each_entry(p, &codec->conn_list, list) {
100 if (p->nid == nid)
101 return p;
102 }
103 return NULL;
104}
105
106static int add_conn_list(struct hda_codec *codec, hda_nid_t nid, int len,
107 const hda_nid_t *list)
108{
109 struct hda_conn_list *p;
110
111 p = kmalloc(struct_size(p, conns, len), GFP_KERNEL);
112 if (!p)
113 return -ENOMEM;
114 p->len = len;
115 p->nid = nid;
116 memcpy(p->conns, list, len * sizeof(hda_nid_t));
117 list_add(&p->list, &codec->conn_list);
118 return 0;
119}
120
121static void remove_conn_list(struct hda_codec *codec)
122{
123 while (!list_empty(&codec->conn_list)) {
124 struct hda_conn_list *p;
125 p = list_first_entry(&codec->conn_list, typeof(*p), list);
126 list_del(&p->list);
127 kfree(p);
128 }
129}
130
131/* read the connection and add to the cache */
132static int read_and_add_raw_conns(struct hda_codec *codec, hda_nid_t nid)
133{
134 hda_nid_t list[32];
135 hda_nid_t *result = list;
136 int len;
137
138 len = snd_hda_get_raw_connections(codec, nid, list, ARRAY_SIZE(list));
139 if (len == -ENOSPC) {
140 len = snd_hda_get_num_raw_conns(codec, nid);
141 result = kmalloc_array(len, sizeof(hda_nid_t), GFP_KERNEL);
142 if (!result)
143 return -ENOMEM;
144 len = snd_hda_get_raw_connections(codec, nid, result, len);
145 }
146 if (len >= 0)
147 len = snd_hda_override_conn_list(codec, nid, len, result);
148 if (result != list)
149 kfree(result);
150 return len;
151}
152
153/**
154 * snd_hda_get_conn_list - get connection list
155 * @codec: the HDA codec
156 * @nid: NID to parse
157 * @listp: the pointer to store NID list
158 *
159 * Parses the connection list of the given widget and stores the pointer
160 * to the list of NIDs.
161 *
162 * Returns the number of connections, or a negative error code.
163 *
164 * Note that the returned pointer isn't protected against the list
165 * modification. If snd_hda_override_conn_list() might be called
166 * concurrently, protect with a mutex appropriately.
167 */
168int snd_hda_get_conn_list(struct hda_codec *codec, hda_nid_t nid,
169 const hda_nid_t **listp)
170{
171 bool added = false;
172
173 for (;;) {
174 int err;
175 const struct hda_conn_list *p;
176
177 /* if the connection-list is already cached, read it */
178 p = lookup_conn_list(codec, nid);
179 if (p) {
180 if (listp)
181 *listp = p->conns;
182 return p->len;
183 }
184 if (snd_BUG_ON(added))
185 return -EINVAL;
186
187 err = read_and_add_raw_conns(codec, nid);
188 if (err < 0)
189 return err;
190 added = true;
191 }
192}
193EXPORT_SYMBOL_GPL(snd_hda_get_conn_list);
194
195/**
196 * snd_hda_get_connections - copy connection list
197 * @codec: the HDA codec
198 * @nid: NID to parse
199 * @conn_list: connection list array; when NULL, checks only the size
200 * @max_conns: max. number of connections to store
201 *
202 * Parses the connection list of the given widget and stores the list
203 * of NIDs.
204 *
205 * Returns the number of connections, or a negative error code.
206 */
207int snd_hda_get_connections(struct hda_codec *codec, hda_nid_t nid,
208 hda_nid_t *conn_list, int max_conns)
209{
210 const hda_nid_t *list;
211 int len = snd_hda_get_conn_list(codec, nid, &list);
212
213 if (len > 0 && conn_list) {
214 if (len > max_conns) {
215 codec_err(codec, "Too many connections %d for NID 0x%x\n",
216 len, nid);
217 return -EINVAL;
218 }
219 memcpy(conn_list, list, len * sizeof(hda_nid_t));
220 }
221
222 return len;
223}
224EXPORT_SYMBOL_GPL(snd_hda_get_connections);
225
226/**
227 * snd_hda_override_conn_list - add/modify the connection-list to cache
228 * @codec: the HDA codec
229 * @nid: NID to parse
230 * @len: number of connection list entries
231 * @list: the list of connection entries
232 *
233 * Add or modify the given connection-list to the cache. If the corresponding
234 * cache already exists, invalidate it and append a new one.
235 *
236 * Returns zero or a negative error code.
237 */
238int snd_hda_override_conn_list(struct hda_codec *codec, hda_nid_t nid, int len,
239 const hda_nid_t *list)
240{
241 struct hda_conn_list *p;
242
243 p = lookup_conn_list(codec, nid);
244 if (p) {
245 list_del(&p->list);
246 kfree(p);
247 }
248
249 return add_conn_list(codec, nid, len, list);
250}
251EXPORT_SYMBOL_GPL(snd_hda_override_conn_list);
252
253/**
254 * snd_hda_get_conn_index - get the connection index of the given NID
255 * @codec: the HDA codec
256 * @mux: NID containing the list
257 * @nid: NID to select
258 * @recursive: 1 when searching NID recursively, otherwise 0
259 *
260 * Parses the connection list of the widget @mux and checks whether the
261 * widget @nid is present. If it is, return the connection index.
262 * Otherwise it returns -1.
263 */
264int snd_hda_get_conn_index(struct hda_codec *codec, hda_nid_t mux,
265 hda_nid_t nid, int recursive)
266{
267 const hda_nid_t *conn;
268 int i, nums;
269
270 nums = snd_hda_get_conn_list(codec, mux, &conn);
271 for (i = 0; i < nums; i++)
272 if (conn[i] == nid)
273 return i;
274 if (!recursive)
275 return -1;
276 if (recursive > 10) {
277 codec_dbg(codec, "too deep connection for 0x%x\n", nid);
278 return -1;
279 }
280 recursive++;
281 for (i = 0; i < nums; i++) {
282 unsigned int type = get_wcaps_type(get_wcaps(codec, conn[i]));
283 if (type == AC_WID_PIN || type == AC_WID_AUD_OUT)
284 continue;
285 if (snd_hda_get_conn_index(codec, conn[i], nid, recursive) >= 0)
286 return i;
287 }
288 return -1;
289}
290EXPORT_SYMBOL_GPL(snd_hda_get_conn_index);
291
292/**
293 * snd_hda_get_num_devices - get DEVLIST_LEN parameter of the given widget
294 * @codec: the HDA codec
295 * @nid: NID of the pin to parse
296 *
297 * Get the device entry number on the given widget. This is a feature of
298 * DP MST audio. Each pin can have several device entries in it.
299 */
300unsigned int snd_hda_get_num_devices(struct hda_codec *codec, hda_nid_t nid)
301{
302 unsigned int wcaps = get_wcaps(codec, nid);
303 unsigned int parm;
304
305 if (!codec->dp_mst || !(wcaps & AC_WCAP_DIGITAL) ||
306 get_wcaps_type(wcaps) != AC_WID_PIN)
307 return 0;
308
309 parm = snd_hdac_read_parm_uncached(&codec->core, nid, AC_PAR_DEVLIST_LEN);
310 if (parm == -1)
311 parm = 0;
312 return parm & AC_DEV_LIST_LEN_MASK;
313}
314EXPORT_SYMBOL_GPL(snd_hda_get_num_devices);
315
316/**
317 * snd_hda_get_devices - copy device list without cache
318 * @codec: the HDA codec
319 * @nid: NID of the pin to parse
320 * @dev_list: device list array
321 * @max_devices: max. number of devices to store
322 *
323 * Copy the device list. This info is dynamic and so not cached.
324 * Currently called only from hda_proc.c, so not exported.
325 */
326int snd_hda_get_devices(struct hda_codec *codec, hda_nid_t nid,
327 u8 *dev_list, int max_devices)
328{
329 unsigned int parm;
330 int i, dev_len, devices;
331
332 parm = snd_hda_get_num_devices(codec, nid);
333 if (!parm) /* not multi-stream capable */
334 return 0;
335
336 dev_len = parm + 1;
337 dev_len = dev_len < max_devices ? dev_len : max_devices;
338
339 devices = 0;
340 while (devices < dev_len) {
341 if (snd_hdac_read(&codec->core, nid,
342 AC_VERB_GET_DEVICE_LIST, devices, &parm))
343 break; /* error */
344
345 for (i = 0; i < 8; i++) {
346 dev_list[devices] = (u8)parm;
347 parm >>= 4;
348 devices++;
349 if (devices >= dev_len)
350 break;
351 }
352 }
353 return devices;
354}
355
356/**
357 * snd_hda_get_dev_select - get device entry select on the pin
358 * @codec: the HDA codec
359 * @nid: NID of the pin to get device entry select
360 *
361 * Get the devcie entry select on the pin. Return the device entry
362 * id selected on the pin. Return 0 means the first device entry
363 * is selected or MST is not supported.
364 */
365int snd_hda_get_dev_select(struct hda_codec *codec, hda_nid_t nid)
366{
367 /* not support dp_mst will always return 0, using first dev_entry */
368 if (!codec->dp_mst)
369 return 0;
370
371 return snd_hda_codec_read(codec, nid, 0, AC_VERB_GET_DEVICE_SEL, 0);
372}
373EXPORT_SYMBOL_GPL(snd_hda_get_dev_select);
374
375/**
376 * snd_hda_set_dev_select - set device entry select on the pin
377 * @codec: the HDA codec
378 * @nid: NID of the pin to set device entry select
379 * @dev_id: device entry id to be set
380 *
381 * Set the device entry select on the pin nid.
382 */
383int snd_hda_set_dev_select(struct hda_codec *codec, hda_nid_t nid, int dev_id)
384{
385 int ret, num_devices;
386
387 /* not support dp_mst will always return 0, using first dev_entry */
388 if (!codec->dp_mst)
389 return 0;
390
391 /* AC_PAR_DEVLIST_LEN is 0 based. */
392 num_devices = snd_hda_get_num_devices(codec, nid) + 1;
393 /* If Device List Length is 0 (num_device = 1),
394 * the pin is not multi stream capable.
395 * Do nothing in this case.
396 */
397 if (num_devices == 1)
398 return 0;
399
400 /* Behavior of setting index being equal to or greater than
401 * Device List Length is not predictable
402 */
403 if (num_devices <= dev_id)
404 return -EINVAL;
405
406 ret = snd_hda_codec_write(codec, nid, 0,
407 AC_VERB_SET_DEVICE_SEL, dev_id);
408
409 return ret;
410}
411EXPORT_SYMBOL_GPL(snd_hda_set_dev_select);
412
413/*
414 * read widget caps for each widget and store in cache
415 */
416static int read_widget_caps(struct hda_codec *codec, hda_nid_t fg_node)
417{
418 int i;
419 hda_nid_t nid;
420
421 codec->wcaps = kmalloc_array(codec->core.num_nodes, 4, GFP_KERNEL);
422 if (!codec->wcaps)
423 return -ENOMEM;
424 nid = codec->core.start_nid;
425 for (i = 0; i < codec->core.num_nodes; i++, nid++)
426 codec->wcaps[i] = snd_hdac_read_parm_uncached(&codec->core,
427 nid, AC_PAR_AUDIO_WIDGET_CAP);
428 return 0;
429}
430
431/* read all pin default configurations and save codec->init_pins */
432static int read_pin_defaults(struct hda_codec *codec)
433{
434 hda_nid_t nid;
435
436 for_each_hda_codec_node(nid, codec) {
437 struct hda_pincfg *pin;
438 unsigned int wcaps = get_wcaps(codec, nid);
439 unsigned int wid_type = get_wcaps_type(wcaps);
440 if (wid_type != AC_WID_PIN)
441 continue;
442 pin = snd_array_new(&codec->init_pins);
443 if (!pin)
444 return -ENOMEM;
445 pin->nid = nid;
446 pin->cfg = snd_hda_codec_read(codec, nid, 0,
447 AC_VERB_GET_CONFIG_DEFAULT, 0);
448 /*
449 * all device entries are the same widget control so far
450 * fixme: if any codec is different, need fix here
451 */
452 pin->ctrl = snd_hda_codec_read(codec, nid, 0,
453 AC_VERB_GET_PIN_WIDGET_CONTROL,
454 0);
455 }
456 return 0;
457}
458
459/* look up the given pin config list and return the item matching with NID */
460static struct hda_pincfg *look_up_pincfg(struct hda_codec *codec,
461 struct snd_array *array,
462 hda_nid_t nid)
463{
464 struct hda_pincfg *pin;
465 int i;
466
467 snd_array_for_each(array, i, pin) {
468 if (pin->nid == nid)
469 return pin;
470 }
471 return NULL;
472}
473
474/* set the current pin config value for the given NID.
475 * the value is cached, and read via snd_hda_codec_get_pincfg()
476 */
477int snd_hda_add_pincfg(struct hda_codec *codec, struct snd_array *list,
478 hda_nid_t nid, unsigned int cfg)
479{
480 struct hda_pincfg *pin;
481
482 /* the check below may be invalid when pins are added by a fixup
483 * dynamically (e.g. via snd_hda_codec_update_widgets()), so disabled
484 * for now
485 */
486 /*
487 if (get_wcaps_type(get_wcaps(codec, nid)) != AC_WID_PIN)
488 return -EINVAL;
489 */
490
491 pin = look_up_pincfg(codec, list, nid);
492 if (!pin) {
493 pin = snd_array_new(list);
494 if (!pin)
495 return -ENOMEM;
496 pin->nid = nid;
497 }
498 pin->cfg = cfg;
499 return 0;
500}
501
502/**
503 * snd_hda_codec_set_pincfg - Override a pin default configuration
504 * @codec: the HDA codec
505 * @nid: NID to set the pin config
506 * @cfg: the pin default config value
507 *
508 * Override a pin default configuration value in the cache.
509 * This value can be read by snd_hda_codec_get_pincfg() in a higher
510 * priority than the real hardware value.
511 */
512int snd_hda_codec_set_pincfg(struct hda_codec *codec,
513 hda_nid_t nid, unsigned int cfg)
514{
515 return snd_hda_add_pincfg(codec, &codec->driver_pins, nid, cfg);
516}
517EXPORT_SYMBOL_GPL(snd_hda_codec_set_pincfg);
518
519/**
520 * snd_hda_codec_get_pincfg - Obtain a pin-default configuration
521 * @codec: the HDA codec
522 * @nid: NID to get the pin config
523 *
524 * Get the current pin config value of the given pin NID.
525 * If the pincfg value is cached or overridden via sysfs or driver,
526 * returns the cached value.
527 */
528unsigned int snd_hda_codec_get_pincfg(struct hda_codec *codec, hda_nid_t nid)
529{
530 struct hda_pincfg *pin;
531
532#ifdef CONFIG_SND_HDA_RECONFIG
533 {
534 unsigned int cfg = 0;
535 mutex_lock(&codec->user_mutex);
536 pin = look_up_pincfg(codec, &codec->user_pins, nid);
537 if (pin)
538 cfg = pin->cfg;
539 mutex_unlock(&codec->user_mutex);
540 if (cfg)
541 return cfg;
542 }
543#endif
544 pin = look_up_pincfg(codec, &codec->driver_pins, nid);
545 if (pin)
546 return pin->cfg;
547 pin = look_up_pincfg(codec, &codec->init_pins, nid);
548 if (pin)
549 return pin->cfg;
550 return 0;
551}
552EXPORT_SYMBOL_GPL(snd_hda_codec_get_pincfg);
553
554/**
555 * snd_hda_codec_set_pin_target - remember the current pinctl target value
556 * @codec: the HDA codec
557 * @nid: pin NID
558 * @val: assigned pinctl value
559 *
560 * This function stores the given value to a pinctl target value in the
561 * pincfg table. This isn't always as same as the actually written value
562 * but can be referred at any time via snd_hda_codec_get_pin_target().
563 */
564int snd_hda_codec_set_pin_target(struct hda_codec *codec, hda_nid_t nid,
565 unsigned int val)
566{
567 struct hda_pincfg *pin;
568
569 pin = look_up_pincfg(codec, &codec->init_pins, nid);
570 if (!pin)
571 return -EINVAL;
572 pin->target = val;
573 return 0;
574}
575EXPORT_SYMBOL_GPL(snd_hda_codec_set_pin_target);
576
577/**
578 * snd_hda_codec_get_pin_target - return the current pinctl target value
579 * @codec: the HDA codec
580 * @nid: pin NID
581 */
582int snd_hda_codec_get_pin_target(struct hda_codec *codec, hda_nid_t nid)
583{
584 struct hda_pincfg *pin;
585
586 pin = look_up_pincfg(codec, &codec->init_pins, nid);
587 if (!pin)
588 return 0;
589 return pin->target;
590}
591EXPORT_SYMBOL_GPL(snd_hda_codec_get_pin_target);
592
593/**
594 * snd_hda_shutup_pins - Shut up all pins
595 * @codec: the HDA codec
596 *
597 * Clear all pin controls to shup up before suspend for avoiding click noise.
598 * The controls aren't cached so that they can be resumed properly.
599 */
600void snd_hda_shutup_pins(struct hda_codec *codec)
601{
602 const struct hda_pincfg *pin;
603 int i;
604
605 /* don't shut up pins when unloading the driver; otherwise it breaks
606 * the default pin setup at the next load of the driver
607 */
608 if (codec->bus->shutdown)
609 return;
610 snd_array_for_each(&codec->init_pins, i, pin) {
611 /* use read here for syncing after issuing each verb */
612 snd_hda_codec_read(codec, pin->nid, 0,
613 AC_VERB_SET_PIN_WIDGET_CONTROL, 0);
614 }
615 codec->pins_shutup = 1;
616}
617EXPORT_SYMBOL_GPL(snd_hda_shutup_pins);
618
619#ifdef CONFIG_PM
620/* Restore the pin controls cleared previously via snd_hda_shutup_pins() */
621static void restore_shutup_pins(struct hda_codec *codec)
622{
623 const struct hda_pincfg *pin;
624 int i;
625
626 if (!codec->pins_shutup)
627 return;
628 if (codec->bus->shutdown)
629 return;
630 snd_array_for_each(&codec->init_pins, i, pin) {
631 snd_hda_codec_write(codec, pin->nid, 0,
632 AC_VERB_SET_PIN_WIDGET_CONTROL,
633 pin->ctrl);
634 }
635 codec->pins_shutup = 0;
636}
637#endif
638
639static void hda_jackpoll_work(struct work_struct *work)
640{
641 struct hda_codec *codec =
642 container_of(work, struct hda_codec, jackpoll_work.work);
643
644 snd_hda_jack_set_dirty_all(codec);
645 snd_hda_jack_poll_all(codec);
646
647 if (!codec->jackpoll_interval)
648 return;
649
650 schedule_delayed_work(&codec->jackpoll_work,
651 codec->jackpoll_interval);
652}
653
654/* release all pincfg lists */
655static void free_init_pincfgs(struct hda_codec *codec)
656{
657 snd_array_free(&codec->driver_pins);
658#ifdef CONFIG_SND_HDA_RECONFIG
659 snd_array_free(&codec->user_pins);
660#endif
661 snd_array_free(&codec->init_pins);
662}
663
664/*
665 * audio-converter setup caches
666 */
667struct hda_cvt_setup {
668 hda_nid_t nid;
669 u8 stream_tag;
670 u8 channel_id;
671 u16 format_id;
672 unsigned char active; /* cvt is currently used */
673 unsigned char dirty; /* setups should be cleared */
674};
675
676/* get or create a cache entry for the given audio converter NID */
677static struct hda_cvt_setup *
678get_hda_cvt_setup(struct hda_codec *codec, hda_nid_t nid)
679{
680 struct hda_cvt_setup *p;
681 int i;
682
683 snd_array_for_each(&codec->cvt_setups, i, p) {
684 if (p->nid == nid)
685 return p;
686 }
687 p = snd_array_new(&codec->cvt_setups);
688 if (p)
689 p->nid = nid;
690 return p;
691}
692
693/*
694 * PCM device
695 */
696static void release_pcm(struct kref *kref)
697{
698 struct hda_pcm *pcm = container_of(kref, struct hda_pcm, kref);
699
700 if (pcm->pcm)
701 snd_device_free(pcm->codec->card, pcm->pcm);
702 clear_bit(pcm->device, pcm->codec->bus->pcm_dev_bits);
703 kfree(pcm->name);
704 kfree(pcm);
705}
706
707void snd_hda_codec_pcm_put(struct hda_pcm *pcm)
708{
709 kref_put(&pcm->kref, release_pcm);
710}
711EXPORT_SYMBOL_GPL(snd_hda_codec_pcm_put);
712
713struct hda_pcm *snd_hda_codec_pcm_new(struct hda_codec *codec,
714 const char *fmt, ...)
715{
716 struct hda_pcm *pcm;
717 va_list args;
718
719 pcm = kzalloc(sizeof(*pcm), GFP_KERNEL);
720 if (!pcm)
721 return NULL;
722
723 pcm->codec = codec;
724 kref_init(&pcm->kref);
725 va_start(args, fmt);
726 pcm->name = kvasprintf(GFP_KERNEL, fmt, args);
727 va_end(args);
728 if (!pcm->name) {
729 kfree(pcm);
730 return NULL;
731 }
732
733 list_add_tail(&pcm->list, &codec->pcm_list_head);
734 return pcm;
735}
736EXPORT_SYMBOL_GPL(snd_hda_codec_pcm_new);
737
738/*
739 * codec destructor
740 */
741static void codec_release_pcms(struct hda_codec *codec)
742{
743 struct hda_pcm *pcm, *n;
744
745 list_for_each_entry_safe(pcm, n, &codec->pcm_list_head, list) {
746 list_del_init(&pcm->list);
747 if (pcm->pcm)
748 snd_device_disconnect(codec->card, pcm->pcm);
749 snd_hda_codec_pcm_put(pcm);
750 }
751}
752
753void snd_hda_codec_cleanup_for_unbind(struct hda_codec *codec)
754{
755 if (codec->registered) {
756 /* pm_runtime_put() is called in snd_hdac_device_exit() */
757 pm_runtime_get_noresume(hda_codec_dev(codec));
758 pm_runtime_disable(hda_codec_dev(codec));
759 codec->registered = 0;
760 }
761
762 cancel_delayed_work_sync(&codec->jackpoll_work);
763 if (!codec->in_freeing)
764 snd_hda_ctls_clear(codec);
765 codec_release_pcms(codec);
766 snd_hda_detach_beep_device(codec);
767 memset(&codec->patch_ops, 0, sizeof(codec->patch_ops));
768 snd_hda_jack_tbl_clear(codec);
769 codec->proc_widget_hook = NULL;
770 codec->spec = NULL;
771
772 /* free only driver_pins so that init_pins + user_pins are restored */
773 snd_array_free(&codec->driver_pins);
774 snd_array_free(&codec->cvt_setups);
775 snd_array_free(&codec->spdif_out);
776 snd_array_free(&codec->verbs);
777 codec->preset = NULL;
778 codec->slave_dig_outs = NULL;
779 codec->spdif_status_reset = 0;
780 snd_array_free(&codec->mixers);
781 snd_array_free(&codec->nids);
782 remove_conn_list(codec);
783 snd_hdac_regmap_exit(&codec->core);
784}
785
786static unsigned int hda_set_power_state(struct hda_codec *codec,
787 unsigned int power_state);
788
789/* enable/disable display power per codec */
790static void codec_display_power(struct hda_codec *codec, bool enable)
791{
792 if (codec->display_power_control)
793 snd_hdac_display_power(&codec->bus->core, codec->addr, enable);
794}
795
796/* also called from hda_bind.c */
797void snd_hda_codec_register(struct hda_codec *codec)
798{
799 if (codec->registered)
800 return;
801 if (device_is_registered(hda_codec_dev(codec))) {
802 codec_display_power(codec, true);
803 pm_runtime_enable(hda_codec_dev(codec));
804 /* it was powered up in snd_hda_codec_new(), now all done */
805 snd_hda_power_down(codec);
806 codec->registered = 1;
807 }
808}
809
810static int snd_hda_codec_dev_register(struct snd_device *device)
811{
812 snd_hda_codec_register(device->device_data);
813 return 0;
814}
815
816static int snd_hda_codec_dev_free(struct snd_device *device)
817{
818 struct hda_codec *codec = device->device_data;
819
820 codec->in_freeing = 1;
821 /*
822 * snd_hda_codec_device_new() is used by legacy HDA and ASoC driver.
823 * We can't unregister ASoC device since it will be unregistered in
824 * snd_hdac_ext_bus_device_remove().
825 */
826 if (codec->core.type == HDA_DEV_LEGACY)
827 snd_hdac_device_unregister(&codec->core);
828 codec_display_power(codec, false);
829
830 /*
831 * In the case of ASoC HD-audio bus, the device refcount is released in
832 * snd_hdac_ext_bus_device_remove() explicitly.
833 */
834 if (codec->core.type == HDA_DEV_LEGACY)
835 put_device(hda_codec_dev(codec));
836
837 return 0;
838}
839
840static void snd_hda_codec_dev_release(struct device *dev)
841{
842 struct hda_codec *codec = dev_to_hda_codec(dev);
843
844 free_init_pincfgs(codec);
845 snd_hdac_device_exit(&codec->core);
846 snd_hda_sysfs_clear(codec);
847 kfree(codec->modelname);
848 kfree(codec->wcaps);
849
850 /*
851 * In the case of ASoC HD-audio, hda_codec is device managed.
852 * It will be freed when the ASoC device is removed.
853 */
854 if (codec->core.type == HDA_DEV_LEGACY)
855 kfree(codec);
856}
857
858#define DEV_NAME_LEN 31
859
860static int snd_hda_codec_device_init(struct hda_bus *bus, struct snd_card *card,
861 unsigned int codec_addr, struct hda_codec **codecp)
862{
863 char name[DEV_NAME_LEN];
864 struct hda_codec *codec;
865 int err;
866
867 dev_dbg(card->dev, "%s: entry\n", __func__);
868
869 if (snd_BUG_ON(!bus))
870 return -EINVAL;
871 if (snd_BUG_ON(codec_addr > HDA_MAX_CODEC_ADDRESS))
872 return -EINVAL;
873
874 codec = kzalloc(sizeof(*codec), GFP_KERNEL);
875 if (!codec)
876 return -ENOMEM;
877
878 sprintf(name, "hdaudioC%dD%d", card->number, codec_addr);
879 err = snd_hdac_device_init(&codec->core, &bus->core, name, codec_addr);
880 if (err < 0) {
881 kfree(codec);
882 return err;
883 }
884
885 codec->core.type = HDA_DEV_LEGACY;
886 *codecp = codec;
887
888 return err;
889}
890
891/**
892 * snd_hda_codec_new - create a HDA codec
893 * @bus: the bus to assign
894 * @codec_addr: the codec address
895 * @codecp: the pointer to store the generated codec
896 *
897 * Returns 0 if successful, or a negative error code.
898 */
899int snd_hda_codec_new(struct hda_bus *bus, struct snd_card *card,
900 unsigned int codec_addr, struct hda_codec **codecp)
901{
902 int ret;
903
904 ret = snd_hda_codec_device_init(bus, card, codec_addr, codecp);
905 if (ret < 0)
906 return ret;
907
908 return snd_hda_codec_device_new(bus, card, codec_addr, *codecp);
909}
910EXPORT_SYMBOL_GPL(snd_hda_codec_new);
911
912int snd_hda_codec_device_new(struct hda_bus *bus, struct snd_card *card,
913 unsigned int codec_addr, struct hda_codec *codec)
914{
915 char component[31];
916 hda_nid_t fg;
917 int err;
918 static struct snd_device_ops dev_ops = {
919 .dev_register = snd_hda_codec_dev_register,
920 .dev_free = snd_hda_codec_dev_free,
921 };
922
923 dev_dbg(card->dev, "%s: entry\n", __func__);
924
925 if (snd_BUG_ON(!bus))
926 return -EINVAL;
927 if (snd_BUG_ON(codec_addr > HDA_MAX_CODEC_ADDRESS))
928 return -EINVAL;
929
930 codec->core.dev.release = snd_hda_codec_dev_release;
931 codec->core.exec_verb = codec_exec_verb;
932
933 codec->bus = bus;
934 codec->card = card;
935 codec->addr = codec_addr;
936 mutex_init(&codec->spdif_mutex);
937 mutex_init(&codec->control_mutex);
938 snd_array_init(&codec->mixers, sizeof(struct hda_nid_item), 32);
939 snd_array_init(&codec->nids, sizeof(struct hda_nid_item), 32);
940 snd_array_init(&codec->init_pins, sizeof(struct hda_pincfg), 16);
941 snd_array_init(&codec->driver_pins, sizeof(struct hda_pincfg), 16);
942 snd_array_init(&codec->cvt_setups, sizeof(struct hda_cvt_setup), 8);
943 snd_array_init(&codec->spdif_out, sizeof(struct hda_spdif_out), 16);
944 snd_array_init(&codec->jacktbl, sizeof(struct hda_jack_tbl), 16);
945 snd_array_init(&codec->verbs, sizeof(struct hda_verb *), 8);
946 INIT_LIST_HEAD(&codec->conn_list);
947 INIT_LIST_HEAD(&codec->pcm_list_head);
948
949 INIT_DELAYED_WORK(&codec->jackpoll_work, hda_jackpoll_work);
950 codec->depop_delay = -1;
951 codec->fixup_id = HDA_FIXUP_ID_NOT_SET;
952
953#ifdef CONFIG_PM
954 codec->power_jiffies = jiffies;
955#endif
956
957 snd_hda_sysfs_init(codec);
958
959 if (codec->bus->modelname) {
960 codec->modelname = kstrdup(codec->bus->modelname, GFP_KERNEL);
961 if (!codec->modelname) {
962 err = -ENOMEM;
963 goto error;
964 }
965 }
966
967 fg = codec->core.afg ? codec->core.afg : codec->core.mfg;
968 err = read_widget_caps(codec, fg);
969 if (err < 0)
970 goto error;
971 err = read_pin_defaults(codec);
972 if (err < 0)
973 goto error;
974
975 /* power-up all before initialization */
976 hda_set_power_state(codec, AC_PWRST_D0);
977 codec->core.dev.power.power_state = PMSG_ON;
978
979 snd_hda_codec_proc_new(codec);
980
981 snd_hda_create_hwdep(codec);
982
983 sprintf(component, "HDA:%08x,%08x,%08x", codec->core.vendor_id,
984 codec->core.subsystem_id, codec->core.revision_id);
985 snd_component_add(card, component);
986
987 err = snd_device_new(card, SNDRV_DEV_CODEC, codec, &dev_ops);
988 if (err < 0)
989 goto error;
990
991 return 0;
992
993 error:
994 put_device(hda_codec_dev(codec));
995 return err;
996}
997EXPORT_SYMBOL_GPL(snd_hda_codec_device_new);
998
999/**
1000 * snd_hda_codec_update_widgets - Refresh widget caps and pin defaults
1001 * @codec: the HDA codec
1002 *
1003 * Forcibly refresh the all widget caps and the init pin configurations of
1004 * the given codec.
1005 */
1006int snd_hda_codec_update_widgets(struct hda_codec *codec)
1007{
1008 hda_nid_t fg;
1009 int err;
1010
1011 err = snd_hdac_refresh_widgets(&codec->core);
1012 if (err < 0)
1013 return err;
1014
1015 /* Assume the function group node does not change,
1016 * only the widget nodes may change.
1017 */
1018 kfree(codec->wcaps);
1019 fg = codec->core.afg ? codec->core.afg : codec->core.mfg;
1020 err = read_widget_caps(codec, fg);
1021 if (err < 0)
1022 return err;
1023
1024 snd_array_free(&codec->init_pins);
1025 err = read_pin_defaults(codec);
1026
1027 return err;
1028}
1029EXPORT_SYMBOL_GPL(snd_hda_codec_update_widgets);
1030
1031/* update the stream-id if changed */
1032static void update_pcm_stream_id(struct hda_codec *codec,
1033 struct hda_cvt_setup *p, hda_nid_t nid,
1034 u32 stream_tag, int channel_id)
1035{
1036 unsigned int oldval, newval;
1037
1038 if (p->stream_tag != stream_tag || p->channel_id != channel_id) {
1039 oldval = snd_hda_codec_read(codec, nid, 0, AC_VERB_GET_CONV, 0);
1040 newval = (stream_tag << 4) | channel_id;
1041 if (oldval != newval)
1042 snd_hda_codec_write(codec, nid, 0,
1043 AC_VERB_SET_CHANNEL_STREAMID,
1044 newval);
1045 p->stream_tag = stream_tag;
1046 p->channel_id = channel_id;
1047 }
1048}
1049
1050/* update the format-id if changed */
1051static void update_pcm_format(struct hda_codec *codec, struct hda_cvt_setup *p,
1052 hda_nid_t nid, int format)
1053{
1054 unsigned int oldval;
1055
1056 if (p->format_id != format) {
1057 oldval = snd_hda_codec_read(codec, nid, 0,
1058 AC_VERB_GET_STREAM_FORMAT, 0);
1059 if (oldval != format) {
1060 msleep(1);
1061 snd_hda_codec_write(codec, nid, 0,
1062 AC_VERB_SET_STREAM_FORMAT,
1063 format);
1064 }
1065 p->format_id = format;
1066 }
1067}
1068
1069/**
1070 * snd_hda_codec_setup_stream - set up the codec for streaming
1071 * @codec: the CODEC to set up
1072 * @nid: the NID to set up
1073 * @stream_tag: stream tag to pass, it's between 0x1 and 0xf.
1074 * @channel_id: channel id to pass, zero based.
1075 * @format: stream format.
1076 */
1077void snd_hda_codec_setup_stream(struct hda_codec *codec, hda_nid_t nid,
1078 u32 stream_tag,
1079 int channel_id, int format)
1080{
1081 struct hda_codec *c;
1082 struct hda_cvt_setup *p;
1083 int type;
1084 int i;
1085
1086 if (!nid)
1087 return;
1088
1089 codec_dbg(codec,
1090 "hda_codec_setup_stream: NID=0x%x, stream=0x%x, channel=%d, format=0x%x\n",
1091 nid, stream_tag, channel_id, format);
1092 p = get_hda_cvt_setup(codec, nid);
1093 if (!p)
1094 return;
1095
1096 if (codec->patch_ops.stream_pm)
1097 codec->patch_ops.stream_pm(codec, nid, true);
1098 if (codec->pcm_format_first)
1099 update_pcm_format(codec, p, nid, format);
1100 update_pcm_stream_id(codec, p, nid, stream_tag, channel_id);
1101 if (!codec->pcm_format_first)
1102 update_pcm_format(codec, p, nid, format);
1103
1104 p->active = 1;
1105 p->dirty = 0;
1106
1107 /* make other inactive cvts with the same stream-tag dirty */
1108 type = get_wcaps_type(get_wcaps(codec, nid));
1109 list_for_each_codec(c, codec->bus) {
1110 snd_array_for_each(&c->cvt_setups, i, p) {
1111 if (!p->active && p->stream_tag == stream_tag &&
1112 get_wcaps_type(get_wcaps(c, p->nid)) == type)
1113 p->dirty = 1;
1114 }
1115 }
1116}
1117EXPORT_SYMBOL_GPL(snd_hda_codec_setup_stream);
1118
1119static void really_cleanup_stream(struct hda_codec *codec,
1120 struct hda_cvt_setup *q);
1121
1122/**
1123 * __snd_hda_codec_cleanup_stream - clean up the codec for closing
1124 * @codec: the CODEC to clean up
1125 * @nid: the NID to clean up
1126 * @do_now: really clean up the stream instead of clearing the active flag
1127 */
1128void __snd_hda_codec_cleanup_stream(struct hda_codec *codec, hda_nid_t nid,
1129 int do_now)
1130{
1131 struct hda_cvt_setup *p;
1132
1133 if (!nid)
1134 return;
1135
1136 if (codec->no_sticky_stream)
1137 do_now = 1;
1138
1139 codec_dbg(codec, "hda_codec_cleanup_stream: NID=0x%x\n", nid);
1140 p = get_hda_cvt_setup(codec, nid);
1141 if (p) {
1142 /* here we just clear the active flag when do_now isn't set;
1143 * actual clean-ups will be done later in
1144 * purify_inactive_streams() called from snd_hda_codec_prpapre()
1145 */
1146 if (do_now)
1147 really_cleanup_stream(codec, p);
1148 else
1149 p->active = 0;
1150 }
1151}
1152EXPORT_SYMBOL_GPL(__snd_hda_codec_cleanup_stream);
1153
1154static void really_cleanup_stream(struct hda_codec *codec,
1155 struct hda_cvt_setup *q)
1156{
1157 hda_nid_t nid = q->nid;
1158 if (q->stream_tag || q->channel_id)
1159 snd_hda_codec_write(codec, nid, 0, AC_VERB_SET_CHANNEL_STREAMID, 0);
1160 if (q->format_id)
1161 snd_hda_codec_write(codec, nid, 0, AC_VERB_SET_STREAM_FORMAT, 0
1162);
1163 memset(q, 0, sizeof(*q));
1164 q->nid = nid;
1165 if (codec->patch_ops.stream_pm)
1166 codec->patch_ops.stream_pm(codec, nid, false);
1167}
1168
1169/* clean up the all conflicting obsolete streams */
1170static void purify_inactive_streams(struct hda_codec *codec)
1171{
1172 struct hda_codec *c;
1173 struct hda_cvt_setup *p;
1174 int i;
1175
1176 list_for_each_codec(c, codec->bus) {
1177 snd_array_for_each(&c->cvt_setups, i, p) {
1178 if (p->dirty)
1179 really_cleanup_stream(c, p);
1180 }
1181 }
1182}
1183
1184#ifdef CONFIG_PM
1185/* clean up all streams; called from suspend */
1186static void hda_cleanup_all_streams(struct hda_codec *codec)
1187{
1188 struct hda_cvt_setup *p;
1189 int i;
1190
1191 snd_array_for_each(&codec->cvt_setups, i, p) {
1192 if (p->stream_tag)
1193 really_cleanup_stream(codec, p);
1194 }
1195}
1196#endif
1197
1198/*
1199 * amp access functions
1200 */
1201
1202/**
1203 * query_amp_caps - query AMP capabilities
1204 * @codec: the HD-auio codec
1205 * @nid: the NID to query
1206 * @direction: either #HDA_INPUT or #HDA_OUTPUT
1207 *
1208 * Query AMP capabilities for the given widget and direction.
1209 * Returns the obtained capability bits.
1210 *
1211 * When cap bits have been already read, this doesn't read again but
1212 * returns the cached value.
1213 */
1214u32 query_amp_caps(struct hda_codec *codec, hda_nid_t nid, int direction)
1215{
1216 if (!(get_wcaps(codec, nid) & AC_WCAP_AMP_OVRD))
1217 nid = codec->core.afg;
1218 return snd_hda_param_read(codec, nid,
1219 direction == HDA_OUTPUT ?
1220 AC_PAR_AMP_OUT_CAP : AC_PAR_AMP_IN_CAP);
1221}
1222EXPORT_SYMBOL_GPL(query_amp_caps);
1223
1224/**
1225 * snd_hda_check_amp_caps - query AMP capabilities
1226 * @codec: the HD-audio codec
1227 * @nid: the NID to query
1228 * @dir: either #HDA_INPUT or #HDA_OUTPUT
1229 * @bits: bit mask to check the result
1230 *
1231 * Check whether the widget has the given amp capability for the direction.
1232 */
1233bool snd_hda_check_amp_caps(struct hda_codec *codec, hda_nid_t nid,
1234 int dir, unsigned int bits)
1235{
1236 if (!nid)
1237 return false;
1238 if (get_wcaps(codec, nid) & (1 << (dir + 1)))
1239 if (query_amp_caps(codec, nid, dir) & bits)
1240 return true;
1241 return false;
1242}
1243EXPORT_SYMBOL_GPL(snd_hda_check_amp_caps);
1244
1245/**
1246 * snd_hda_override_amp_caps - Override the AMP capabilities
1247 * @codec: the CODEC to clean up
1248 * @nid: the NID to clean up
1249 * @dir: either #HDA_INPUT or #HDA_OUTPUT
1250 * @caps: the capability bits to set
1251 *
1252 * Override the cached AMP caps bits value by the given one.
1253 * This function is useful if the driver needs to adjust the AMP ranges,
1254 * e.g. limit to 0dB, etc.
1255 *
1256 * Returns zero if successful or a negative error code.
1257 */
1258int snd_hda_override_amp_caps(struct hda_codec *codec, hda_nid_t nid, int dir,
1259 unsigned int caps)
1260{
1261 unsigned int parm;
1262
1263 snd_hda_override_wcaps(codec, nid,
1264 get_wcaps(codec, nid) | AC_WCAP_AMP_OVRD);
1265 parm = dir == HDA_OUTPUT ? AC_PAR_AMP_OUT_CAP : AC_PAR_AMP_IN_CAP;
1266 return snd_hdac_override_parm(&codec->core, nid, parm, caps);
1267}
1268EXPORT_SYMBOL_GPL(snd_hda_override_amp_caps);
1269
1270/**
1271 * snd_hda_codec_amp_update - update the AMP mono value
1272 * @codec: HD-audio codec
1273 * @nid: NID to read the AMP value
1274 * @ch: channel to update (0 or 1)
1275 * @dir: #HDA_INPUT or #HDA_OUTPUT
1276 * @idx: the index value (only for input direction)
1277 * @mask: bit mask to set
1278 * @val: the bits value to set
1279 *
1280 * Update the AMP values for the given channel, direction and index.
1281 */
1282int snd_hda_codec_amp_update(struct hda_codec *codec, hda_nid_t nid,
1283 int ch, int dir, int idx, int mask, int val)
1284{
1285 unsigned int cmd = snd_hdac_regmap_encode_amp(nid, ch, dir, idx);
1286
1287 /* enable fake mute if no h/w mute but min=mute */
1288 if ((query_amp_caps(codec, nid, dir) &
1289 (AC_AMPCAP_MUTE | AC_AMPCAP_MIN_MUTE)) == AC_AMPCAP_MIN_MUTE)
1290 cmd |= AC_AMP_FAKE_MUTE;
1291 return snd_hdac_regmap_update_raw(&codec->core, cmd, mask, val);
1292}
1293EXPORT_SYMBOL_GPL(snd_hda_codec_amp_update);
1294
1295/**
1296 * snd_hda_codec_amp_stereo - update the AMP stereo values
1297 * @codec: HD-audio codec
1298 * @nid: NID to read the AMP value
1299 * @direction: #HDA_INPUT or #HDA_OUTPUT
1300 * @idx: the index value (only for input direction)
1301 * @mask: bit mask to set
1302 * @val: the bits value to set
1303 *
1304 * Update the AMP values like snd_hda_codec_amp_update(), but for a
1305 * stereo widget with the same mask and value.
1306 */
1307int snd_hda_codec_amp_stereo(struct hda_codec *codec, hda_nid_t nid,
1308 int direction, int idx, int mask, int val)
1309{
1310 int ch, ret = 0;
1311
1312 if (snd_BUG_ON(mask & ~0xff))
1313 mask &= 0xff;
1314 for (ch = 0; ch < 2; ch++)
1315 ret |= snd_hda_codec_amp_update(codec, nid, ch, direction,
1316 idx, mask, val);
1317 return ret;
1318}
1319EXPORT_SYMBOL_GPL(snd_hda_codec_amp_stereo);
1320
1321/**
1322 * snd_hda_codec_amp_init - initialize the AMP value
1323 * @codec: the HDA codec
1324 * @nid: NID to read the AMP value
1325 * @ch: channel (left=0 or right=1)
1326 * @dir: #HDA_INPUT or #HDA_OUTPUT
1327 * @idx: the index value (only for input direction)
1328 * @mask: bit mask to set
1329 * @val: the bits value to set
1330 *
1331 * Works like snd_hda_codec_amp_update() but it writes the value only at
1332 * the first access. If the amp was already initialized / updated beforehand,
1333 * this does nothing.
1334 */
1335int snd_hda_codec_amp_init(struct hda_codec *codec, hda_nid_t nid, int ch,
1336 int dir, int idx, int mask, int val)
1337{
1338 int orig;
1339
1340 if (!codec->core.regmap)
1341 return -EINVAL;
1342 regcache_cache_only(codec->core.regmap, true);
1343 orig = snd_hda_codec_amp_read(codec, nid, ch, dir, idx);
1344 regcache_cache_only(codec->core.regmap, false);
1345 if (orig >= 0)
1346 return 0;
1347 return snd_hda_codec_amp_update(codec, nid, ch, dir, idx, mask, val);
1348}
1349EXPORT_SYMBOL_GPL(snd_hda_codec_amp_init);
1350
1351/**
1352 * snd_hda_codec_amp_init_stereo - initialize the stereo AMP value
1353 * @codec: the HDA codec
1354 * @nid: NID to read the AMP value
1355 * @dir: #HDA_INPUT or #HDA_OUTPUT
1356 * @idx: the index value (only for input direction)
1357 * @mask: bit mask to set
1358 * @val: the bits value to set
1359 *
1360 * Call snd_hda_codec_amp_init() for both stereo channels.
1361 */
1362int snd_hda_codec_amp_init_stereo(struct hda_codec *codec, hda_nid_t nid,
1363 int dir, int idx, int mask, int val)
1364{
1365 int ch, ret = 0;
1366
1367 if (snd_BUG_ON(mask & ~0xff))
1368 mask &= 0xff;
1369 for (ch = 0; ch < 2; ch++)
1370 ret |= snd_hda_codec_amp_init(codec, nid, ch, dir,
1371 idx, mask, val);
1372 return ret;
1373}
1374EXPORT_SYMBOL_GPL(snd_hda_codec_amp_init_stereo);
1375
1376static u32 get_amp_max_value(struct hda_codec *codec, hda_nid_t nid, int dir,
1377 unsigned int ofs)
1378{
1379 u32 caps = query_amp_caps(codec, nid, dir);
1380 /* get num steps */
1381 caps = (caps & AC_AMPCAP_NUM_STEPS) >> AC_AMPCAP_NUM_STEPS_SHIFT;
1382 if (ofs < caps)
1383 caps -= ofs;
1384 return caps;
1385}
1386
1387/**
1388 * snd_hda_mixer_amp_volume_info - Info callback for a standard AMP mixer
1389 * @kcontrol: referred ctl element
1390 * @uinfo: pointer to get/store the data
1391 *
1392 * The control element is supposed to have the private_value field
1393 * set up via HDA_COMPOSE_AMP_VAL*() or related macros.
1394 */
1395int snd_hda_mixer_amp_volume_info(struct snd_kcontrol *kcontrol,
1396 struct snd_ctl_elem_info *uinfo)
1397{
1398 struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
1399 u16 nid = get_amp_nid(kcontrol);
1400 u8 chs = get_amp_channels(kcontrol);
1401 int dir = get_amp_direction(kcontrol);
1402 unsigned int ofs = get_amp_offset(kcontrol);
1403
1404 uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
1405 uinfo->count = chs == 3 ? 2 : 1;
1406 uinfo->value.integer.min = 0;
1407 uinfo->value.integer.max = get_amp_max_value(codec, nid, dir, ofs);
1408 if (!uinfo->value.integer.max) {
1409 codec_warn(codec,
1410 "num_steps = 0 for NID=0x%x (ctl = %s)\n",
1411 nid, kcontrol->id.name);
1412 return -EINVAL;
1413 }
1414 return 0;
1415}
1416EXPORT_SYMBOL_GPL(snd_hda_mixer_amp_volume_info);
1417
1418
1419static inline unsigned int
1420read_amp_value(struct hda_codec *codec, hda_nid_t nid,
1421 int ch, int dir, int idx, unsigned int ofs)
1422{
1423 unsigned int val;
1424 val = snd_hda_codec_amp_read(codec, nid, ch, dir, idx);
1425 val &= HDA_AMP_VOLMASK;
1426 if (val >= ofs)
1427 val -= ofs;
1428 else
1429 val = 0;
1430 return val;
1431}
1432
1433static inline int
1434update_amp_value(struct hda_codec *codec, hda_nid_t nid,
1435 int ch, int dir, int idx, unsigned int ofs,
1436 unsigned int val)
1437{
1438 unsigned int maxval;
1439
1440 if (val > 0)
1441 val += ofs;
1442 /* ofs = 0: raw max value */
1443 maxval = get_amp_max_value(codec, nid, dir, 0);
1444 if (val > maxval)
1445 val = maxval;
1446 return snd_hda_codec_amp_update(codec, nid, ch, dir, idx,
1447 HDA_AMP_VOLMASK, val);
1448}
1449
1450/**
1451 * snd_hda_mixer_amp_volume_get - Get callback for a standard AMP mixer volume
1452 * @kcontrol: ctl element
1453 * @ucontrol: pointer to get/store the data
1454 *
1455 * The control element is supposed to have the private_value field
1456 * set up via HDA_COMPOSE_AMP_VAL*() or related macros.
1457 */
1458int snd_hda_mixer_amp_volume_get(struct snd_kcontrol *kcontrol,
1459 struct snd_ctl_elem_value *ucontrol)
1460{
1461 struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
1462 hda_nid_t nid = get_amp_nid(kcontrol);
1463 int chs = get_amp_channels(kcontrol);
1464 int dir = get_amp_direction(kcontrol);
1465 int idx = get_amp_index(kcontrol);
1466 unsigned int ofs = get_amp_offset(kcontrol);
1467 long *valp = ucontrol->value.integer.value;
1468
1469 if (chs & 1)
1470 *valp++ = read_amp_value(codec, nid, 0, dir, idx, ofs);
1471 if (chs & 2)
1472 *valp = read_amp_value(codec, nid, 1, dir, idx, ofs);
1473 return 0;
1474}
1475EXPORT_SYMBOL_GPL(snd_hda_mixer_amp_volume_get);
1476
1477/**
1478 * snd_hda_mixer_amp_volume_put - Put callback for a standard AMP mixer volume
1479 * @kcontrol: ctl element
1480 * @ucontrol: pointer to get/store the data
1481 *
1482 * The control element is supposed to have the private_value field
1483 * set up via HDA_COMPOSE_AMP_VAL*() or related macros.
1484 */
1485int snd_hda_mixer_amp_volume_put(struct snd_kcontrol *kcontrol,
1486 struct snd_ctl_elem_value *ucontrol)
1487{
1488 struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
1489 hda_nid_t nid = get_amp_nid(kcontrol);
1490 int chs = get_amp_channels(kcontrol);
1491 int dir = get_amp_direction(kcontrol);
1492 int idx = get_amp_index(kcontrol);
1493 unsigned int ofs = get_amp_offset(kcontrol);
1494 long *valp = ucontrol->value.integer.value;
1495 int change = 0;
1496
1497 if (chs & 1) {
1498 change = update_amp_value(codec, nid, 0, dir, idx, ofs, *valp);
1499 valp++;
1500 }
1501 if (chs & 2)
1502 change |= update_amp_value(codec, nid, 1, dir, idx, ofs, *valp);
1503 return change;
1504}
1505EXPORT_SYMBOL_GPL(snd_hda_mixer_amp_volume_put);
1506
1507/* inquiry the amp caps and convert to TLV */
1508static void get_ctl_amp_tlv(struct snd_kcontrol *kcontrol, unsigned int *tlv)
1509{
1510 struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
1511 hda_nid_t nid = get_amp_nid(kcontrol);
1512 int dir = get_amp_direction(kcontrol);
1513 unsigned int ofs = get_amp_offset(kcontrol);
1514 bool min_mute = get_amp_min_mute(kcontrol);
1515 u32 caps, val1, val2;
1516
1517 caps = query_amp_caps(codec, nid, dir);
1518 val2 = (caps & AC_AMPCAP_STEP_SIZE) >> AC_AMPCAP_STEP_SIZE_SHIFT;
1519 val2 = (val2 + 1) * 25;
1520 val1 = -((caps & AC_AMPCAP_OFFSET) >> AC_AMPCAP_OFFSET_SHIFT);
1521 val1 += ofs;
1522 val1 = ((int)val1) * ((int)val2);
1523 if (min_mute || (caps & AC_AMPCAP_MIN_MUTE))
1524 val2 |= TLV_DB_SCALE_MUTE;
1525 tlv[SNDRV_CTL_TLVO_TYPE] = SNDRV_CTL_TLVT_DB_SCALE;
1526 tlv[SNDRV_CTL_TLVO_LEN] = 2 * sizeof(unsigned int);
1527 tlv[SNDRV_CTL_TLVO_DB_SCALE_MIN] = val1;
1528 tlv[SNDRV_CTL_TLVO_DB_SCALE_MUTE_AND_STEP] = val2;
1529}
1530
1531/**
1532 * snd_hda_mixer_amp_tlv - TLV callback for a standard AMP mixer volume
1533 * @kcontrol: ctl element
1534 * @op_flag: operation flag
1535 * @size: byte size of input TLV
1536 * @_tlv: TLV data
1537 *
1538 * The control element is supposed to have the private_value field
1539 * set up via HDA_COMPOSE_AMP_VAL*() or related macros.
1540 */
1541int snd_hda_mixer_amp_tlv(struct snd_kcontrol *kcontrol, int op_flag,
1542 unsigned int size, unsigned int __user *_tlv)
1543{
1544 unsigned int tlv[4];
1545
1546 if (size < 4 * sizeof(unsigned int))
1547 return -ENOMEM;
1548 get_ctl_amp_tlv(kcontrol, tlv);
1549 if (copy_to_user(_tlv, tlv, sizeof(tlv)))
1550 return -EFAULT;
1551 return 0;
1552}
1553EXPORT_SYMBOL_GPL(snd_hda_mixer_amp_tlv);
1554
1555/**
1556 * snd_hda_set_vmaster_tlv - Set TLV for a virtual master control
1557 * @codec: HD-audio codec
1558 * @nid: NID of a reference widget
1559 * @dir: #HDA_INPUT or #HDA_OUTPUT
1560 * @tlv: TLV data to be stored, at least 4 elements
1561 *
1562 * Set (static) TLV data for a virtual master volume using the AMP caps
1563 * obtained from the reference NID.
1564 * The volume range is recalculated as if the max volume is 0dB.
1565 */
1566void snd_hda_set_vmaster_tlv(struct hda_codec *codec, hda_nid_t nid, int dir,
1567 unsigned int *tlv)
1568{
1569 u32 caps;
1570 int nums, step;
1571
1572 caps = query_amp_caps(codec, nid, dir);
1573 nums = (caps & AC_AMPCAP_NUM_STEPS) >> AC_AMPCAP_NUM_STEPS_SHIFT;
1574 step = (caps & AC_AMPCAP_STEP_SIZE) >> AC_AMPCAP_STEP_SIZE_SHIFT;
1575 step = (step + 1) * 25;
1576 tlv[SNDRV_CTL_TLVO_TYPE] = SNDRV_CTL_TLVT_DB_SCALE;
1577 tlv[SNDRV_CTL_TLVO_LEN] = 2 * sizeof(unsigned int);
1578 tlv[SNDRV_CTL_TLVO_DB_SCALE_MIN] = -nums * step;
1579 tlv[SNDRV_CTL_TLVO_DB_SCALE_MUTE_AND_STEP] = step;
1580}
1581EXPORT_SYMBOL_GPL(snd_hda_set_vmaster_tlv);
1582
1583/* find a mixer control element with the given name */
1584static struct snd_kcontrol *
1585find_mixer_ctl(struct hda_codec *codec, const char *name, int dev, int idx)
1586{
1587 struct snd_ctl_elem_id id;
1588 memset(&id, 0, sizeof(id));
1589 id.iface = SNDRV_CTL_ELEM_IFACE_MIXER;
1590 id.device = dev;
1591 id.index = idx;
1592 if (snd_BUG_ON(strlen(name) >= sizeof(id.name)))
1593 return NULL;
1594 strcpy(id.name, name);
1595 return snd_ctl_find_id(codec->card, &id);
1596}
1597
1598/**
1599 * snd_hda_find_mixer_ctl - Find a mixer control element with the given name
1600 * @codec: HD-audio codec
1601 * @name: ctl id name string
1602 *
1603 * Get the control element with the given id string and IFACE_MIXER.
1604 */
1605struct snd_kcontrol *snd_hda_find_mixer_ctl(struct hda_codec *codec,
1606 const char *name)
1607{
1608 return find_mixer_ctl(codec, name, 0, 0);
1609}
1610EXPORT_SYMBOL_GPL(snd_hda_find_mixer_ctl);
1611
1612static int find_empty_mixer_ctl_idx(struct hda_codec *codec, const char *name,
1613 int start_idx)
1614{
1615 int i, idx;
1616 /* 16 ctlrs should be large enough */
1617 for (i = 0, idx = start_idx; i < 16; i++, idx++) {
1618 if (!find_mixer_ctl(codec, name, 0, idx))
1619 return idx;
1620 }
1621 return -EBUSY;
1622}
1623
1624/**
1625 * snd_hda_ctl_add - Add a control element and assign to the codec
1626 * @codec: HD-audio codec
1627 * @nid: corresponding NID (optional)
1628 * @kctl: the control element to assign
1629 *
1630 * Add the given control element to an array inside the codec instance.
1631 * All control elements belonging to a codec are supposed to be added
1632 * by this function so that a proper clean-up works at the free or
1633 * reconfiguration time.
1634 *
1635 * If non-zero @nid is passed, the NID is assigned to the control element.
1636 * The assignment is shown in the codec proc file.
1637 *
1638 * snd_hda_ctl_add() checks the control subdev id field whether
1639 * #HDA_SUBDEV_NID_FLAG bit is set. If set (and @nid is zero), the lower
1640 * bits value is taken as the NID to assign. The #HDA_NID_ITEM_AMP bit
1641 * specifies if kctl->private_value is a HDA amplifier value.
1642 */
1643int snd_hda_ctl_add(struct hda_codec *codec, hda_nid_t nid,
1644 struct snd_kcontrol *kctl)
1645{
1646 int err;
1647 unsigned short flags = 0;
1648 struct hda_nid_item *item;
1649
1650 if (kctl->id.subdevice & HDA_SUBDEV_AMP_FLAG) {
1651 flags |= HDA_NID_ITEM_AMP;
1652 if (nid == 0)
1653 nid = get_amp_nid_(kctl->private_value);
1654 }
1655 if ((kctl->id.subdevice & HDA_SUBDEV_NID_FLAG) != 0 && nid == 0)
1656 nid = kctl->id.subdevice & 0xffff;
1657 if (kctl->id.subdevice & (HDA_SUBDEV_NID_FLAG|HDA_SUBDEV_AMP_FLAG))
1658 kctl->id.subdevice = 0;
1659 err = snd_ctl_add(codec->card, kctl);
1660 if (err < 0)
1661 return err;
1662 item = snd_array_new(&codec->mixers);
1663 if (!item)
1664 return -ENOMEM;
1665 item->kctl = kctl;
1666 item->nid = nid;
1667 item->flags = flags;
1668 return 0;
1669}
1670EXPORT_SYMBOL_GPL(snd_hda_ctl_add);
1671
1672/**
1673 * snd_hda_add_nid - Assign a NID to a control element
1674 * @codec: HD-audio codec
1675 * @nid: corresponding NID (optional)
1676 * @kctl: the control element to assign
1677 * @index: index to kctl
1678 *
1679 * Add the given control element to an array inside the codec instance.
1680 * This function is used when #snd_hda_ctl_add cannot be used for 1:1
1681 * NID:KCTL mapping - for example "Capture Source" selector.
1682 */
1683int snd_hda_add_nid(struct hda_codec *codec, struct snd_kcontrol *kctl,
1684 unsigned int index, hda_nid_t nid)
1685{
1686 struct hda_nid_item *item;
1687
1688 if (nid > 0) {
1689 item = snd_array_new(&codec->nids);
1690 if (!item)
1691 return -ENOMEM;
1692 item->kctl = kctl;
1693 item->index = index;
1694 item->nid = nid;
1695 return 0;
1696 }
1697 codec_err(codec, "no NID for mapping control %s:%d:%d\n",
1698 kctl->id.name, kctl->id.index, index);
1699 return -EINVAL;
1700}
1701EXPORT_SYMBOL_GPL(snd_hda_add_nid);
1702
1703/**
1704 * snd_hda_ctls_clear - Clear all controls assigned to the given codec
1705 * @codec: HD-audio codec
1706 */
1707void snd_hda_ctls_clear(struct hda_codec *codec)
1708{
1709 int i;
1710 struct hda_nid_item *items = codec->mixers.list;
1711 for (i = 0; i < codec->mixers.used; i++)
1712 snd_ctl_remove(codec->card, items[i].kctl);
1713 snd_array_free(&codec->mixers);
1714 snd_array_free(&codec->nids);
1715}
1716
1717/**
1718 * snd_hda_lock_devices - pseudo device locking
1719 * @bus: the BUS
1720 *
1721 * toggle card->shutdown to allow/disallow the device access (as a hack)
1722 */
1723int snd_hda_lock_devices(struct hda_bus *bus)
1724{
1725 struct snd_card *card = bus->card;
1726 struct hda_codec *codec;
1727
1728 spin_lock(&card->files_lock);
1729 if (card->shutdown)
1730 goto err_unlock;
1731 card->shutdown = 1;
1732 if (!list_empty(&card->ctl_files))
1733 goto err_clear;
1734
1735 list_for_each_codec(codec, bus) {
1736 struct hda_pcm *cpcm;
1737 list_for_each_entry(cpcm, &codec->pcm_list_head, list) {
1738 if (!cpcm->pcm)
1739 continue;
1740 if (cpcm->pcm->streams[0].substream_opened ||
1741 cpcm->pcm->streams[1].substream_opened)
1742 goto err_clear;
1743 }
1744 }
1745 spin_unlock(&card->files_lock);
1746 return 0;
1747
1748 err_clear:
1749 card->shutdown = 0;
1750 err_unlock:
1751 spin_unlock(&card->files_lock);
1752 return -EINVAL;
1753}
1754EXPORT_SYMBOL_GPL(snd_hda_lock_devices);
1755
1756/**
1757 * snd_hda_unlock_devices - pseudo device unlocking
1758 * @bus: the BUS
1759 */
1760void snd_hda_unlock_devices(struct hda_bus *bus)
1761{
1762 struct snd_card *card = bus->card;
1763
1764 spin_lock(&card->files_lock);
1765 card->shutdown = 0;
1766 spin_unlock(&card->files_lock);
1767}
1768EXPORT_SYMBOL_GPL(snd_hda_unlock_devices);
1769
1770/**
1771 * snd_hda_codec_reset - Clear all objects assigned to the codec
1772 * @codec: HD-audio codec
1773 *
1774 * This frees the all PCM and control elements assigned to the codec, and
1775 * clears the caches and restores the pin default configurations.
1776 *
1777 * When a device is being used, it returns -EBSY. If successfully freed,
1778 * returns zero.
1779 */
1780int snd_hda_codec_reset(struct hda_codec *codec)
1781{
1782 struct hda_bus *bus = codec->bus;
1783
1784 if (snd_hda_lock_devices(bus) < 0)
1785 return -EBUSY;
1786
1787 /* OK, let it free */
1788 snd_hdac_device_unregister(&codec->core);
1789
1790 /* allow device access again */
1791 snd_hda_unlock_devices(bus);
1792 return 0;
1793}
1794
1795typedef int (*map_slave_func_t)(struct hda_codec *, void *, struct snd_kcontrol *);
1796
1797/* apply the function to all matching slave ctls in the mixer list */
1798static int map_slaves(struct hda_codec *codec, const char * const *slaves,
1799 const char *suffix, map_slave_func_t func, void *data)
1800{
1801 struct hda_nid_item *items;
1802 const char * const *s;
1803 int i, err;
1804
1805 items = codec->mixers.list;
1806 for (i = 0; i < codec->mixers.used; i++) {
1807 struct snd_kcontrol *sctl = items[i].kctl;
1808 if (!sctl || sctl->id.iface != SNDRV_CTL_ELEM_IFACE_MIXER)
1809 continue;
1810 for (s = slaves; *s; s++) {
1811 char tmpname[sizeof(sctl->id.name)];
1812 const char *name = *s;
1813 if (suffix) {
1814 snprintf(tmpname, sizeof(tmpname), "%s %s",
1815 name, suffix);
1816 name = tmpname;
1817 }
1818 if (!strcmp(sctl->id.name, name)) {
1819 err = func(codec, data, sctl);
1820 if (err)
1821 return err;
1822 break;
1823 }
1824 }
1825 }
1826 return 0;
1827}
1828
1829static int check_slave_present(struct hda_codec *codec,
1830 void *data, struct snd_kcontrol *sctl)
1831{
1832 return 1;
1833}
1834
1835/* call kctl->put with the given value(s) */
1836static int put_kctl_with_value(struct snd_kcontrol *kctl, int val)
1837{
1838 struct snd_ctl_elem_value *ucontrol;
1839 ucontrol = kzalloc(sizeof(*ucontrol), GFP_KERNEL);
1840 if (!ucontrol)
1841 return -ENOMEM;
1842 ucontrol->value.integer.value[0] = val;
1843 ucontrol->value.integer.value[1] = val;
1844 kctl->put(kctl, ucontrol);
1845 kfree(ucontrol);
1846 return 0;
1847}
1848
1849struct slave_init_arg {
1850 struct hda_codec *codec;
1851 int step;
1852};
1853
1854/* initialize the slave volume with 0dB via snd_ctl_apply_vmaster_slaves() */
1855static int init_slave_0dB(struct snd_kcontrol *slave,
1856 struct snd_kcontrol *kctl,
1857 void *_arg)
1858{
1859 struct slave_init_arg *arg = _arg;
1860 int _tlv[4];
1861 const int *tlv = NULL;
1862 int step;
1863 int val;
1864
1865 if (kctl->vd[0].access & SNDRV_CTL_ELEM_ACCESS_TLV_CALLBACK) {
1866 if (kctl->tlv.c != snd_hda_mixer_amp_tlv) {
1867 codec_err(arg->codec,
1868 "Unexpected TLV callback for slave %s:%d\n",
1869 kctl->id.name, kctl->id.index);
1870 return 0; /* ignore */
1871 }
1872 get_ctl_amp_tlv(kctl, _tlv);
1873 tlv = _tlv;
1874 } else if (kctl->vd[0].access & SNDRV_CTL_ELEM_ACCESS_TLV_READ)
1875 tlv = kctl->tlv.p;
1876
1877 if (!tlv || tlv[SNDRV_CTL_TLVO_TYPE] != SNDRV_CTL_TLVT_DB_SCALE)
1878 return 0;
1879
1880 step = tlv[SNDRV_CTL_TLVO_DB_SCALE_MUTE_AND_STEP];
1881 step &= ~TLV_DB_SCALE_MUTE;
1882 if (!step)
1883 return 0;
1884 if (arg->step && arg->step != step) {
1885 codec_err(arg->codec,
1886 "Mismatching dB step for vmaster slave (%d!=%d)\n",
1887 arg->step, step);
1888 return 0;
1889 }
1890
1891 arg->step = step;
1892 val = -tlv[SNDRV_CTL_TLVO_DB_SCALE_MIN] / step;
1893 if (val > 0) {
1894 put_kctl_with_value(slave, val);
1895 return val;
1896 }
1897
1898 return 0;
1899}
1900
1901/* unmute the slave via snd_ctl_apply_vmaster_slaves() */
1902static int init_slave_unmute(struct snd_kcontrol *slave,
1903 struct snd_kcontrol *kctl,
1904 void *_arg)
1905{
1906 return put_kctl_with_value(slave, 1);
1907}
1908
1909static int add_slave(struct hda_codec *codec,
1910 void *data, struct snd_kcontrol *slave)
1911{
1912 return snd_ctl_add_slave(data, slave);
1913}
1914
1915/**
1916 * __snd_hda_add_vmaster - create a virtual master control and add slaves
1917 * @codec: HD-audio codec
1918 * @name: vmaster control name
1919 * @tlv: TLV data (optional)
1920 * @slaves: slave control names (optional)
1921 * @suffix: suffix string to each slave name (optional)
1922 * @init_slave_vol: initialize slaves to unmute/0dB
1923 * @ctl_ret: store the vmaster kcontrol in return
1924 *
1925 * Create a virtual master control with the given name. The TLV data
1926 * must be either NULL or a valid data.
1927 *
1928 * @slaves is a NULL-terminated array of strings, each of which is a
1929 * slave control name. All controls with these names are assigned to
1930 * the new virtual master control.
1931 *
1932 * This function returns zero if successful or a negative error code.
1933 */
1934int __snd_hda_add_vmaster(struct hda_codec *codec, char *name,
1935 unsigned int *tlv, const char * const *slaves,
1936 const char *suffix, bool init_slave_vol,
1937 struct snd_kcontrol **ctl_ret)
1938{
1939 struct snd_kcontrol *kctl;
1940 int err;
1941
1942 if (ctl_ret)
1943 *ctl_ret = NULL;
1944
1945 err = map_slaves(codec, slaves, suffix, check_slave_present, NULL);
1946 if (err != 1) {
1947 codec_dbg(codec, "No slave found for %s\n", name);
1948 return 0;
1949 }
1950 kctl = snd_ctl_make_virtual_master(name, tlv);
1951 if (!kctl)
1952 return -ENOMEM;
1953 err = snd_hda_ctl_add(codec, 0, kctl);
1954 if (err < 0)
1955 return err;
1956
1957 err = map_slaves(codec, slaves, suffix, add_slave, kctl);
1958 if (err < 0)
1959 return err;
1960
1961 /* init with master mute & zero volume */
1962 put_kctl_with_value(kctl, 0);
1963 if (init_slave_vol) {
1964 struct slave_init_arg arg = {
1965 .codec = codec,
1966 .step = 0,
1967 };
1968 snd_ctl_apply_vmaster_slaves(kctl,
1969 tlv ? init_slave_0dB : init_slave_unmute,
1970 &arg);
1971 }
1972
1973 if (ctl_ret)
1974 *ctl_ret = kctl;
1975 return 0;
1976}
1977EXPORT_SYMBOL_GPL(__snd_hda_add_vmaster);
1978
1979/*
1980 * mute-LED control using vmaster
1981 */
1982static int vmaster_mute_mode_info(struct snd_kcontrol *kcontrol,
1983 struct snd_ctl_elem_info *uinfo)
1984{
1985 static const char * const texts[] = {
1986 "On", "Off", "Follow Master"
1987 };
1988
1989 return snd_ctl_enum_info(uinfo, 1, 3, texts);
1990}
1991
1992static int vmaster_mute_mode_get(struct snd_kcontrol *kcontrol,
1993 struct snd_ctl_elem_value *ucontrol)
1994{
1995 struct hda_vmaster_mute_hook *hook = snd_kcontrol_chip(kcontrol);
1996 ucontrol->value.enumerated.item[0] = hook->mute_mode;
1997 return 0;
1998}
1999
2000static int vmaster_mute_mode_put(struct snd_kcontrol *kcontrol,
2001 struct snd_ctl_elem_value *ucontrol)
2002{
2003 struct hda_vmaster_mute_hook *hook = snd_kcontrol_chip(kcontrol);
2004 unsigned int old_mode = hook->mute_mode;
2005
2006 hook->mute_mode = ucontrol->value.enumerated.item[0];
2007 if (hook->mute_mode > HDA_VMUTE_FOLLOW_MASTER)
2008 hook->mute_mode = HDA_VMUTE_FOLLOW_MASTER;
2009 if (old_mode == hook->mute_mode)
2010 return 0;
2011 snd_hda_sync_vmaster_hook(hook);
2012 return 1;
2013}
2014
2015static const struct snd_kcontrol_new vmaster_mute_mode = {
2016 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
2017 .name = "Mute-LED Mode",
2018 .info = vmaster_mute_mode_info,
2019 .get = vmaster_mute_mode_get,
2020 .put = vmaster_mute_mode_put,
2021};
2022
2023/* meta hook to call each driver's vmaster hook */
2024static void vmaster_hook(void *private_data, int enabled)
2025{
2026 struct hda_vmaster_mute_hook *hook = private_data;
2027
2028 if (hook->mute_mode != HDA_VMUTE_FOLLOW_MASTER)
2029 enabled = hook->mute_mode;
2030 hook->hook(hook->codec, enabled);
2031}
2032
2033/**
2034 * snd_hda_add_vmaster_hook - Add a vmaster hook for mute-LED
2035 * @codec: the HDA codec
2036 * @hook: the vmaster hook object
2037 * @expose_enum_ctl: flag to create an enum ctl
2038 *
2039 * Add a mute-LED hook with the given vmaster switch kctl.
2040 * When @expose_enum_ctl is set, "Mute-LED Mode" control is automatically
2041 * created and associated with the given hook.
2042 */
2043int snd_hda_add_vmaster_hook(struct hda_codec *codec,
2044 struct hda_vmaster_mute_hook *hook,
2045 bool expose_enum_ctl)
2046{
2047 struct snd_kcontrol *kctl;
2048
2049 if (!hook->hook || !hook->sw_kctl)
2050 return 0;
2051 hook->codec = codec;
2052 hook->mute_mode = HDA_VMUTE_FOLLOW_MASTER;
2053 snd_ctl_add_vmaster_hook(hook->sw_kctl, vmaster_hook, hook);
2054 if (!expose_enum_ctl)
2055 return 0;
2056 kctl = snd_ctl_new1(&vmaster_mute_mode, hook);
2057 if (!kctl)
2058 return -ENOMEM;
2059 return snd_hda_ctl_add(codec, 0, kctl);
2060}
2061EXPORT_SYMBOL_GPL(snd_hda_add_vmaster_hook);
2062
2063/**
2064 * snd_hda_sync_vmaster_hook - Sync vmaster hook
2065 * @hook: the vmaster hook
2066 *
2067 * Call the hook with the current value for synchronization.
2068 * Should be called in init callback.
2069 */
2070void snd_hda_sync_vmaster_hook(struct hda_vmaster_mute_hook *hook)
2071{
2072 if (!hook->hook || !hook->codec)
2073 return;
2074 /* don't call vmaster hook in the destructor since it might have
2075 * been already destroyed
2076 */
2077 if (hook->codec->bus->shutdown)
2078 return;
2079 snd_ctl_sync_vmaster_hook(hook->sw_kctl);
2080}
2081EXPORT_SYMBOL_GPL(snd_hda_sync_vmaster_hook);
2082
2083
2084/**
2085 * snd_hda_mixer_amp_switch_info - Info callback for a standard AMP mixer switch
2086 * @kcontrol: referred ctl element
2087 * @uinfo: pointer to get/store the data
2088 *
2089 * The control element is supposed to have the private_value field
2090 * set up via HDA_COMPOSE_AMP_VAL*() or related macros.
2091 */
2092int snd_hda_mixer_amp_switch_info(struct snd_kcontrol *kcontrol,
2093 struct snd_ctl_elem_info *uinfo)
2094{
2095 int chs = get_amp_channels(kcontrol);
2096
2097 uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN;
2098 uinfo->count = chs == 3 ? 2 : 1;
2099 uinfo->value.integer.min = 0;
2100 uinfo->value.integer.max = 1;
2101 return 0;
2102}
2103EXPORT_SYMBOL_GPL(snd_hda_mixer_amp_switch_info);
2104
2105/**
2106 * snd_hda_mixer_amp_switch_get - Get callback for a standard AMP mixer switch
2107 * @kcontrol: ctl element
2108 * @ucontrol: pointer to get/store the data
2109 *
2110 * The control element is supposed to have the private_value field
2111 * set up via HDA_COMPOSE_AMP_VAL*() or related macros.
2112 */
2113int snd_hda_mixer_amp_switch_get(struct snd_kcontrol *kcontrol,
2114 struct snd_ctl_elem_value *ucontrol)
2115{
2116 struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
2117 hda_nid_t nid = get_amp_nid(kcontrol);
2118 int chs = get_amp_channels(kcontrol);
2119 int dir = get_amp_direction(kcontrol);
2120 int idx = get_amp_index(kcontrol);
2121 long *valp = ucontrol->value.integer.value;
2122
2123 if (chs & 1)
2124 *valp++ = (snd_hda_codec_amp_read(codec, nid, 0, dir, idx) &
2125 HDA_AMP_MUTE) ? 0 : 1;
2126 if (chs & 2)
2127 *valp = (snd_hda_codec_amp_read(codec, nid, 1, dir, idx) &
2128 HDA_AMP_MUTE) ? 0 : 1;
2129 return 0;
2130}
2131EXPORT_SYMBOL_GPL(snd_hda_mixer_amp_switch_get);
2132
2133/**
2134 * snd_hda_mixer_amp_switch_put - Put callback for a standard AMP mixer switch
2135 * @kcontrol: ctl element
2136 * @ucontrol: pointer to get/store the data
2137 *
2138 * The control element is supposed to have the private_value field
2139 * set up via HDA_COMPOSE_AMP_VAL*() or related macros.
2140 */
2141int snd_hda_mixer_amp_switch_put(struct snd_kcontrol *kcontrol,
2142 struct snd_ctl_elem_value *ucontrol)
2143{
2144 struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
2145 hda_nid_t nid = get_amp_nid(kcontrol);
2146 int chs = get_amp_channels(kcontrol);
2147 int dir = get_amp_direction(kcontrol);
2148 int idx = get_amp_index(kcontrol);
2149 long *valp = ucontrol->value.integer.value;
2150 int change = 0;
2151
2152 if (chs & 1) {
2153 change = snd_hda_codec_amp_update(codec, nid, 0, dir, idx,
2154 HDA_AMP_MUTE,
2155 *valp ? 0 : HDA_AMP_MUTE);
2156 valp++;
2157 }
2158 if (chs & 2)
2159 change |= snd_hda_codec_amp_update(codec, nid, 1, dir, idx,
2160 HDA_AMP_MUTE,
2161 *valp ? 0 : HDA_AMP_MUTE);
2162 hda_call_check_power_status(codec, nid);
2163 return change;
2164}
2165EXPORT_SYMBOL_GPL(snd_hda_mixer_amp_switch_put);
2166
2167/*
2168 * SPDIF out controls
2169 */
2170
2171static int snd_hda_spdif_mask_info(struct snd_kcontrol *kcontrol,
2172 struct snd_ctl_elem_info *uinfo)
2173{
2174 uinfo->type = SNDRV_CTL_ELEM_TYPE_IEC958;
2175 uinfo->count = 1;
2176 return 0;
2177}
2178
2179static int snd_hda_spdif_cmask_get(struct snd_kcontrol *kcontrol,
2180 struct snd_ctl_elem_value *ucontrol)
2181{
2182 ucontrol->value.iec958.status[0] = IEC958_AES0_PROFESSIONAL |
2183 IEC958_AES0_NONAUDIO |
2184 IEC958_AES0_CON_EMPHASIS_5015 |
2185 IEC958_AES0_CON_NOT_COPYRIGHT;
2186 ucontrol->value.iec958.status[1] = IEC958_AES1_CON_CATEGORY |
2187 IEC958_AES1_CON_ORIGINAL;
2188 return 0;
2189}
2190
2191static int snd_hda_spdif_pmask_get(struct snd_kcontrol *kcontrol,
2192 struct snd_ctl_elem_value *ucontrol)
2193{
2194 ucontrol->value.iec958.status[0] = IEC958_AES0_PROFESSIONAL |
2195 IEC958_AES0_NONAUDIO |
2196 IEC958_AES0_PRO_EMPHASIS_5015;
2197 return 0;
2198}
2199
2200static int snd_hda_spdif_default_get(struct snd_kcontrol *kcontrol,
2201 struct snd_ctl_elem_value *ucontrol)
2202{
2203 struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
2204 int idx = kcontrol->private_value;
2205 struct hda_spdif_out *spdif;
2206
2207 if (WARN_ON(codec->spdif_out.used <= idx))
2208 return -EINVAL;
2209 mutex_lock(&codec->spdif_mutex);
2210 spdif = snd_array_elem(&codec->spdif_out, idx);
2211 ucontrol->value.iec958.status[0] = spdif->status & 0xff;
2212 ucontrol->value.iec958.status[1] = (spdif->status >> 8) & 0xff;
2213 ucontrol->value.iec958.status[2] = (spdif->status >> 16) & 0xff;
2214 ucontrol->value.iec958.status[3] = (spdif->status >> 24) & 0xff;
2215 mutex_unlock(&codec->spdif_mutex);
2216
2217 return 0;
2218}
2219
2220/* convert from SPDIF status bits to HDA SPDIF bits
2221 * bit 0 (DigEn) is always set zero (to be filled later)
2222 */
2223static unsigned short convert_from_spdif_status(unsigned int sbits)
2224{
2225 unsigned short val = 0;
2226
2227 if (sbits & IEC958_AES0_PROFESSIONAL)
2228 val |= AC_DIG1_PROFESSIONAL;
2229 if (sbits & IEC958_AES0_NONAUDIO)
2230 val |= AC_DIG1_NONAUDIO;
2231 if (sbits & IEC958_AES0_PROFESSIONAL) {
2232 if ((sbits & IEC958_AES0_PRO_EMPHASIS) ==
2233 IEC958_AES0_PRO_EMPHASIS_5015)
2234 val |= AC_DIG1_EMPHASIS;
2235 } else {
2236 if ((sbits & IEC958_AES0_CON_EMPHASIS) ==
2237 IEC958_AES0_CON_EMPHASIS_5015)
2238 val |= AC_DIG1_EMPHASIS;
2239 if (!(sbits & IEC958_AES0_CON_NOT_COPYRIGHT))
2240 val |= AC_DIG1_COPYRIGHT;
2241 if (sbits & (IEC958_AES1_CON_ORIGINAL << 8))
2242 val |= AC_DIG1_LEVEL;
2243 val |= sbits & (IEC958_AES1_CON_CATEGORY << 8);
2244 }
2245 return val;
2246}
2247
2248/* convert to SPDIF status bits from HDA SPDIF bits
2249 */
2250static unsigned int convert_to_spdif_status(unsigned short val)
2251{
2252 unsigned int sbits = 0;
2253
2254 if (val & AC_DIG1_NONAUDIO)
2255 sbits |= IEC958_AES0_NONAUDIO;
2256 if (val & AC_DIG1_PROFESSIONAL)
2257 sbits |= IEC958_AES0_PROFESSIONAL;
2258 if (sbits & IEC958_AES0_PROFESSIONAL) {
2259 if (val & AC_DIG1_EMPHASIS)
2260 sbits |= IEC958_AES0_PRO_EMPHASIS_5015;
2261 } else {
2262 if (val & AC_DIG1_EMPHASIS)
2263 sbits |= IEC958_AES0_CON_EMPHASIS_5015;
2264 if (!(val & AC_DIG1_COPYRIGHT))
2265 sbits |= IEC958_AES0_CON_NOT_COPYRIGHT;
2266 if (val & AC_DIG1_LEVEL)
2267 sbits |= (IEC958_AES1_CON_ORIGINAL << 8);
2268 sbits |= val & (0x7f << 8);
2269 }
2270 return sbits;
2271}
2272
2273/* set digital convert verbs both for the given NID and its slaves */
2274static void set_dig_out(struct hda_codec *codec, hda_nid_t nid,
2275 int mask, int val)
2276{
2277 const hda_nid_t *d;
2278
2279 snd_hdac_regmap_update(&codec->core, nid, AC_VERB_SET_DIGI_CONVERT_1,
2280 mask, val);
2281 d = codec->slave_dig_outs;
2282 if (!d)
2283 return;
2284 for (; *d; d++)
2285 snd_hdac_regmap_update(&codec->core, *d,
2286 AC_VERB_SET_DIGI_CONVERT_1, mask, val);
2287}
2288
2289static inline void set_dig_out_convert(struct hda_codec *codec, hda_nid_t nid,
2290 int dig1, int dig2)
2291{
2292 unsigned int mask = 0;
2293 unsigned int val = 0;
2294
2295 if (dig1 != -1) {
2296 mask |= 0xff;
2297 val = dig1;
2298 }
2299 if (dig2 != -1) {
2300 mask |= 0xff00;
2301 val |= dig2 << 8;
2302 }
2303 set_dig_out(codec, nid, mask, val);
2304}
2305
2306static int snd_hda_spdif_default_put(struct snd_kcontrol *kcontrol,
2307 struct snd_ctl_elem_value *ucontrol)
2308{
2309 struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
2310 int idx = kcontrol->private_value;
2311 struct hda_spdif_out *spdif;
2312 hda_nid_t nid;
2313 unsigned short val;
2314 int change;
2315
2316 if (WARN_ON(codec->spdif_out.used <= idx))
2317 return -EINVAL;
2318 mutex_lock(&codec->spdif_mutex);
2319 spdif = snd_array_elem(&codec->spdif_out, idx);
2320 nid = spdif->nid;
2321 spdif->status = ucontrol->value.iec958.status[0] |
2322 ((unsigned int)ucontrol->value.iec958.status[1] << 8) |
2323 ((unsigned int)ucontrol->value.iec958.status[2] << 16) |
2324 ((unsigned int)ucontrol->value.iec958.status[3] << 24);
2325 val = convert_from_spdif_status(spdif->status);
2326 val |= spdif->ctls & 1;
2327 change = spdif->ctls != val;
2328 spdif->ctls = val;
2329 if (change && nid != (u16)-1)
2330 set_dig_out_convert(codec, nid, val & 0xff, (val >> 8) & 0xff);
2331 mutex_unlock(&codec->spdif_mutex);
2332 return change;
2333}
2334
2335#define snd_hda_spdif_out_switch_info snd_ctl_boolean_mono_info
2336
2337static int snd_hda_spdif_out_switch_get(struct snd_kcontrol *kcontrol,
2338 struct snd_ctl_elem_value *ucontrol)
2339{
2340 struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
2341 int idx = kcontrol->private_value;
2342 struct hda_spdif_out *spdif;
2343
2344 if (WARN_ON(codec->spdif_out.used <= idx))
2345 return -EINVAL;
2346 mutex_lock(&codec->spdif_mutex);
2347 spdif = snd_array_elem(&codec->spdif_out, idx);
2348 ucontrol->value.integer.value[0] = spdif->ctls & AC_DIG1_ENABLE;
2349 mutex_unlock(&codec->spdif_mutex);
2350 return 0;
2351}
2352
2353static inline void set_spdif_ctls(struct hda_codec *codec, hda_nid_t nid,
2354 int dig1, int dig2)
2355{
2356 set_dig_out_convert(codec, nid, dig1, dig2);
2357 /* unmute amp switch (if any) */
2358 if ((get_wcaps(codec, nid) & AC_WCAP_OUT_AMP) &&
2359 (dig1 & AC_DIG1_ENABLE))
2360 snd_hda_codec_amp_stereo(codec, nid, HDA_OUTPUT, 0,
2361 HDA_AMP_MUTE, 0);
2362}
2363
2364static int snd_hda_spdif_out_switch_put(struct snd_kcontrol *kcontrol,
2365 struct snd_ctl_elem_value *ucontrol)
2366{
2367 struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
2368 int idx = kcontrol->private_value;
2369 struct hda_spdif_out *spdif;
2370 hda_nid_t nid;
2371 unsigned short val;
2372 int change;
2373
2374 if (WARN_ON(codec->spdif_out.used <= idx))
2375 return -EINVAL;
2376 mutex_lock(&codec->spdif_mutex);
2377 spdif = snd_array_elem(&codec->spdif_out, idx);
2378 nid = spdif->nid;
2379 val = spdif->ctls & ~AC_DIG1_ENABLE;
2380 if (ucontrol->value.integer.value[0])
2381 val |= AC_DIG1_ENABLE;
2382 change = spdif->ctls != val;
2383 spdif->ctls = val;
2384 if (change && nid != (u16)-1)
2385 set_spdif_ctls(codec, nid, val & 0xff, -1);
2386 mutex_unlock(&codec->spdif_mutex);
2387 return change;
2388}
2389
2390static struct snd_kcontrol_new dig_mixes[] = {
2391 {
2392 .access = SNDRV_CTL_ELEM_ACCESS_READ,
2393 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
2394 .name = SNDRV_CTL_NAME_IEC958("", PLAYBACK, CON_MASK),
2395 .info = snd_hda_spdif_mask_info,
2396 .get = snd_hda_spdif_cmask_get,
2397 },
2398 {
2399 .access = SNDRV_CTL_ELEM_ACCESS_READ,
2400 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
2401 .name = SNDRV_CTL_NAME_IEC958("", PLAYBACK, PRO_MASK),
2402 .info = snd_hda_spdif_mask_info,
2403 .get = snd_hda_spdif_pmask_get,
2404 },
2405 {
2406 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
2407 .name = SNDRV_CTL_NAME_IEC958("", PLAYBACK, DEFAULT),
2408 .info = snd_hda_spdif_mask_info,
2409 .get = snd_hda_spdif_default_get,
2410 .put = snd_hda_spdif_default_put,
2411 },
2412 {
2413 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
2414 .name = SNDRV_CTL_NAME_IEC958("", PLAYBACK, SWITCH),
2415 .info = snd_hda_spdif_out_switch_info,
2416 .get = snd_hda_spdif_out_switch_get,
2417 .put = snd_hda_spdif_out_switch_put,
2418 },
2419 { } /* end */
2420};
2421
2422/**
2423 * snd_hda_create_dig_out_ctls - create Output SPDIF-related controls
2424 * @codec: the HDA codec
2425 * @associated_nid: NID that new ctls associated with
2426 * @cvt_nid: converter NID
2427 * @type: HDA_PCM_TYPE_*
2428 * Creates controls related with the digital output.
2429 * Called from each patch supporting the digital out.
2430 *
2431 * Returns 0 if successful, or a negative error code.
2432 */
2433int snd_hda_create_dig_out_ctls(struct hda_codec *codec,
2434 hda_nid_t associated_nid,
2435 hda_nid_t cvt_nid,
2436 int type)
2437{
2438 int err;
2439 struct snd_kcontrol *kctl;
2440 struct snd_kcontrol_new *dig_mix;
2441 int idx = 0;
2442 int val = 0;
2443 const int spdif_index = 16;
2444 struct hda_spdif_out *spdif;
2445 struct hda_bus *bus = codec->bus;
2446
2447 if (bus->primary_dig_out_type == HDA_PCM_TYPE_HDMI &&
2448 type == HDA_PCM_TYPE_SPDIF) {
2449 idx = spdif_index;
2450 } else if (bus->primary_dig_out_type == HDA_PCM_TYPE_SPDIF &&
2451 type == HDA_PCM_TYPE_HDMI) {
2452 /* suppose a single SPDIF device */
2453 for (dig_mix = dig_mixes; dig_mix->name; dig_mix++) {
2454 kctl = find_mixer_ctl(codec, dig_mix->name, 0, 0);
2455 if (!kctl)
2456 break;
2457 kctl->id.index = spdif_index;
2458 }
2459 bus->primary_dig_out_type = HDA_PCM_TYPE_HDMI;
2460 }
2461 if (!bus->primary_dig_out_type)
2462 bus->primary_dig_out_type = type;
2463
2464 idx = find_empty_mixer_ctl_idx(codec, "IEC958 Playback Switch", idx);
2465 if (idx < 0) {
2466 codec_err(codec, "too many IEC958 outputs\n");
2467 return -EBUSY;
2468 }
2469 spdif = snd_array_new(&codec->spdif_out);
2470 if (!spdif)
2471 return -ENOMEM;
2472 for (dig_mix = dig_mixes; dig_mix->name; dig_mix++) {
2473 kctl = snd_ctl_new1(dig_mix, codec);
2474 if (!kctl)
2475 return -ENOMEM;
2476 kctl->id.index = idx;
2477 kctl->private_value = codec->spdif_out.used - 1;
2478 err = snd_hda_ctl_add(codec, associated_nid, kctl);
2479 if (err < 0)
2480 return err;
2481 }
2482 spdif->nid = cvt_nid;
2483 snd_hdac_regmap_read(&codec->core, cvt_nid,
2484 AC_VERB_GET_DIGI_CONVERT_1, &val);
2485 spdif->ctls = val;
2486 spdif->status = convert_to_spdif_status(spdif->ctls);
2487 return 0;
2488}
2489EXPORT_SYMBOL_GPL(snd_hda_create_dig_out_ctls);
2490
2491/**
2492 * snd_hda_spdif_out_of_nid - get the hda_spdif_out entry from the given NID
2493 * @codec: the HDA codec
2494 * @nid: widget NID
2495 *
2496 * call within spdif_mutex lock
2497 */
2498struct hda_spdif_out *snd_hda_spdif_out_of_nid(struct hda_codec *codec,
2499 hda_nid_t nid)
2500{
2501 struct hda_spdif_out *spdif;
2502 int i;
2503
2504 snd_array_for_each(&codec->spdif_out, i, spdif) {
2505 if (spdif->nid == nid)
2506 return spdif;
2507 }
2508 return NULL;
2509}
2510EXPORT_SYMBOL_GPL(snd_hda_spdif_out_of_nid);
2511
2512/**
2513 * snd_hda_spdif_ctls_unassign - Unassign the given SPDIF ctl
2514 * @codec: the HDA codec
2515 * @idx: the SPDIF ctl index
2516 *
2517 * Unassign the widget from the given SPDIF control.
2518 */
2519void snd_hda_spdif_ctls_unassign(struct hda_codec *codec, int idx)
2520{
2521 struct hda_spdif_out *spdif;
2522
2523 if (WARN_ON(codec->spdif_out.used <= idx))
2524 return;
2525 mutex_lock(&codec->spdif_mutex);
2526 spdif = snd_array_elem(&codec->spdif_out, idx);
2527 spdif->nid = (u16)-1;
2528 mutex_unlock(&codec->spdif_mutex);
2529}
2530EXPORT_SYMBOL_GPL(snd_hda_spdif_ctls_unassign);
2531
2532/**
2533 * snd_hda_spdif_ctls_assign - Assign the SPDIF controls to the given NID
2534 * @codec: the HDA codec
2535 * @idx: the SPDIF ctl idx
2536 * @nid: widget NID
2537 *
2538 * Assign the widget to the SPDIF control with the given index.
2539 */
2540void snd_hda_spdif_ctls_assign(struct hda_codec *codec, int idx, hda_nid_t nid)
2541{
2542 struct hda_spdif_out *spdif;
2543 unsigned short val;
2544
2545 if (WARN_ON(codec->spdif_out.used <= idx))
2546 return;
2547 mutex_lock(&codec->spdif_mutex);
2548 spdif = snd_array_elem(&codec->spdif_out, idx);
2549 if (spdif->nid != nid) {
2550 spdif->nid = nid;
2551 val = spdif->ctls;
2552 set_spdif_ctls(codec, nid, val & 0xff, (val >> 8) & 0xff);
2553 }
2554 mutex_unlock(&codec->spdif_mutex);
2555}
2556EXPORT_SYMBOL_GPL(snd_hda_spdif_ctls_assign);
2557
2558/*
2559 * SPDIF sharing with analog output
2560 */
2561static int spdif_share_sw_get(struct snd_kcontrol *kcontrol,
2562 struct snd_ctl_elem_value *ucontrol)
2563{
2564 struct hda_multi_out *mout = snd_kcontrol_chip(kcontrol);
2565 ucontrol->value.integer.value[0] = mout->share_spdif;
2566 return 0;
2567}
2568
2569static int spdif_share_sw_put(struct snd_kcontrol *kcontrol,
2570 struct snd_ctl_elem_value *ucontrol)
2571{
2572 struct hda_multi_out *mout = snd_kcontrol_chip(kcontrol);
2573 mout->share_spdif = !!ucontrol->value.integer.value[0];
2574 return 0;
2575}
2576
2577static const struct snd_kcontrol_new spdif_share_sw = {
2578 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
2579 .name = "IEC958 Default PCM Playback Switch",
2580 .info = snd_ctl_boolean_mono_info,
2581 .get = spdif_share_sw_get,
2582 .put = spdif_share_sw_put,
2583};
2584
2585/**
2586 * snd_hda_create_spdif_share_sw - create Default PCM switch
2587 * @codec: the HDA codec
2588 * @mout: multi-out instance
2589 */
2590int snd_hda_create_spdif_share_sw(struct hda_codec *codec,
2591 struct hda_multi_out *mout)
2592{
2593 struct snd_kcontrol *kctl;
2594
2595 if (!mout->dig_out_nid)
2596 return 0;
2597
2598 kctl = snd_ctl_new1(&spdif_share_sw, mout);
2599 if (!kctl)
2600 return -ENOMEM;
2601 /* ATTENTION: here mout is passed as private_data, instead of codec */
2602 return snd_hda_ctl_add(codec, mout->dig_out_nid, kctl);
2603}
2604EXPORT_SYMBOL_GPL(snd_hda_create_spdif_share_sw);
2605
2606/*
2607 * SPDIF input
2608 */
2609
2610#define snd_hda_spdif_in_switch_info snd_hda_spdif_out_switch_info
2611
2612static int snd_hda_spdif_in_switch_get(struct snd_kcontrol *kcontrol,
2613 struct snd_ctl_elem_value *ucontrol)
2614{
2615 struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
2616
2617 ucontrol->value.integer.value[0] = codec->spdif_in_enable;
2618 return 0;
2619}
2620
2621static int snd_hda_spdif_in_switch_put(struct snd_kcontrol *kcontrol,
2622 struct snd_ctl_elem_value *ucontrol)
2623{
2624 struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
2625 hda_nid_t nid = kcontrol->private_value;
2626 unsigned int val = !!ucontrol->value.integer.value[0];
2627 int change;
2628
2629 mutex_lock(&codec->spdif_mutex);
2630 change = codec->spdif_in_enable != val;
2631 if (change) {
2632 codec->spdif_in_enable = val;
2633 snd_hdac_regmap_write(&codec->core, nid,
2634 AC_VERB_SET_DIGI_CONVERT_1, val);
2635 }
2636 mutex_unlock(&codec->spdif_mutex);
2637 return change;
2638}
2639
2640static int snd_hda_spdif_in_status_get(struct snd_kcontrol *kcontrol,
2641 struct snd_ctl_elem_value *ucontrol)
2642{
2643 struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
2644 hda_nid_t nid = kcontrol->private_value;
2645 unsigned int val;
2646 unsigned int sbits;
2647
2648 snd_hdac_regmap_read(&codec->core, nid,
2649 AC_VERB_GET_DIGI_CONVERT_1, &val);
2650 sbits = convert_to_spdif_status(val);
2651 ucontrol->value.iec958.status[0] = sbits;
2652 ucontrol->value.iec958.status[1] = sbits >> 8;
2653 ucontrol->value.iec958.status[2] = sbits >> 16;
2654 ucontrol->value.iec958.status[3] = sbits >> 24;
2655 return 0;
2656}
2657
2658static struct snd_kcontrol_new dig_in_ctls[] = {
2659 {
2660 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
2661 .name = SNDRV_CTL_NAME_IEC958("", CAPTURE, SWITCH),
2662 .info = snd_hda_spdif_in_switch_info,
2663 .get = snd_hda_spdif_in_switch_get,
2664 .put = snd_hda_spdif_in_switch_put,
2665 },
2666 {
2667 .access = SNDRV_CTL_ELEM_ACCESS_READ,
2668 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
2669 .name = SNDRV_CTL_NAME_IEC958("", CAPTURE, DEFAULT),
2670 .info = snd_hda_spdif_mask_info,
2671 .get = snd_hda_spdif_in_status_get,
2672 },
2673 { } /* end */
2674};
2675
2676/**
2677 * snd_hda_create_spdif_in_ctls - create Input SPDIF-related controls
2678 * @codec: the HDA codec
2679 * @nid: audio in widget NID
2680 *
2681 * Creates controls related with the SPDIF input.
2682 * Called from each patch supporting the SPDIF in.
2683 *
2684 * Returns 0 if successful, or a negative error code.
2685 */
2686int snd_hda_create_spdif_in_ctls(struct hda_codec *codec, hda_nid_t nid)
2687{
2688 int err;
2689 struct snd_kcontrol *kctl;
2690 struct snd_kcontrol_new *dig_mix;
2691 int idx;
2692
2693 idx = find_empty_mixer_ctl_idx(codec, "IEC958 Capture Switch", 0);
2694 if (idx < 0) {
2695 codec_err(codec, "too many IEC958 inputs\n");
2696 return -EBUSY;
2697 }
2698 for (dig_mix = dig_in_ctls; dig_mix->name; dig_mix++) {
2699 kctl = snd_ctl_new1(dig_mix, codec);
2700 if (!kctl)
2701 return -ENOMEM;
2702 kctl->private_value = nid;
2703 err = snd_hda_ctl_add(codec, nid, kctl);
2704 if (err < 0)
2705 return err;
2706 }
2707 codec->spdif_in_enable =
2708 snd_hda_codec_read(codec, nid, 0,
2709 AC_VERB_GET_DIGI_CONVERT_1, 0) &
2710 AC_DIG1_ENABLE;
2711 return 0;
2712}
2713EXPORT_SYMBOL_GPL(snd_hda_create_spdif_in_ctls);
2714
2715/**
2716 * snd_hda_codec_set_power_to_all - Set the power state to all widgets
2717 * @codec: the HDA codec
2718 * @fg: function group (not used now)
2719 * @power_state: the power state to set (AC_PWRST_*)
2720 *
2721 * Set the given power state to all widgets that have the power control.
2722 * If the codec has power_filter set, it evaluates the power state and
2723 * filter out if it's unchanged as D3.
2724 */
2725void snd_hda_codec_set_power_to_all(struct hda_codec *codec, hda_nid_t fg,
2726 unsigned int power_state)
2727{
2728 hda_nid_t nid;
2729
2730 for_each_hda_codec_node(nid, codec) {
2731 unsigned int wcaps = get_wcaps(codec, nid);
2732 unsigned int state = power_state;
2733 if (!(wcaps & AC_WCAP_POWER))
2734 continue;
2735 if (codec->power_filter) {
2736 state = codec->power_filter(codec, nid, power_state);
2737 if (state != power_state && power_state == AC_PWRST_D3)
2738 continue;
2739 }
2740 snd_hda_codec_write(codec, nid, 0, AC_VERB_SET_POWER_STATE,
2741 state);
2742 }
2743}
2744EXPORT_SYMBOL_GPL(snd_hda_codec_set_power_to_all);
2745
2746/**
2747 * snd_hda_codec_eapd_power_filter - A power filter callback for EAPD
2748 * @codec: the HDA codec
2749 * @nid: widget NID
2750 * @power_state: power state to evalue
2751 *
2752 * Don't power down the widget if it controls eapd and EAPD_BTLENABLE is set.
2753 * This can be used a codec power_filter callback.
2754 */
2755unsigned int snd_hda_codec_eapd_power_filter(struct hda_codec *codec,
2756 hda_nid_t nid,
2757 unsigned int power_state)
2758{
2759 if (nid == codec->core.afg || nid == codec->core.mfg)
2760 return power_state;
2761 if (power_state == AC_PWRST_D3 &&
2762 get_wcaps_type(get_wcaps(codec, nid)) == AC_WID_PIN &&
2763 (snd_hda_query_pin_caps(codec, nid) & AC_PINCAP_EAPD)) {
2764 int eapd = snd_hda_codec_read(codec, nid, 0,
2765 AC_VERB_GET_EAPD_BTLENABLE, 0);
2766 if (eapd & 0x02)
2767 return AC_PWRST_D0;
2768 }
2769 return power_state;
2770}
2771EXPORT_SYMBOL_GPL(snd_hda_codec_eapd_power_filter);
2772
2773/*
2774 * set power state of the codec, and return the power state
2775 */
2776static unsigned int hda_set_power_state(struct hda_codec *codec,
2777 unsigned int power_state)
2778{
2779 hda_nid_t fg = codec->core.afg ? codec->core.afg : codec->core.mfg;
2780 int count;
2781 unsigned int state;
2782 int flags = 0;
2783
2784 /* this delay seems necessary to avoid click noise at power-down */
2785 if (power_state == AC_PWRST_D3) {
2786 if (codec->depop_delay < 0)
2787 msleep(codec_has_epss(codec) ? 10 : 100);
2788 else if (codec->depop_delay > 0)
2789 msleep(codec->depop_delay);
2790 flags = HDA_RW_NO_RESPONSE_FALLBACK;
2791 }
2792
2793 /* repeat power states setting at most 10 times*/
2794 for (count = 0; count < 10; count++) {
2795 if (codec->patch_ops.set_power_state)
2796 codec->patch_ops.set_power_state(codec, fg,
2797 power_state);
2798 else {
2799 state = power_state;
2800 if (codec->power_filter)
2801 state = codec->power_filter(codec, fg, state);
2802 if (state == power_state || power_state != AC_PWRST_D3)
2803 snd_hda_codec_read(codec, fg, flags,
2804 AC_VERB_SET_POWER_STATE,
2805 state);
2806 snd_hda_codec_set_power_to_all(codec, fg, power_state);
2807 }
2808 state = snd_hda_sync_power_state(codec, fg, power_state);
2809 if (!(state & AC_PWRST_ERROR))
2810 break;
2811 }
2812
2813 return state;
2814}
2815
2816/* sync power states of all widgets;
2817 * this is called at the end of codec parsing
2818 */
2819static void sync_power_up_states(struct hda_codec *codec)
2820{
2821 hda_nid_t nid;
2822
2823 /* don't care if no filter is used */
2824 if (!codec->power_filter)
2825 return;
2826
2827 for_each_hda_codec_node(nid, codec) {
2828 unsigned int wcaps = get_wcaps(codec, nid);
2829 unsigned int target;
2830 if (!(wcaps & AC_WCAP_POWER))
2831 continue;
2832 target = codec->power_filter(codec, nid, AC_PWRST_D0);
2833 if (target == AC_PWRST_D0)
2834 continue;
2835 if (!snd_hda_check_power_state(codec, nid, target))
2836 snd_hda_codec_write(codec, nid, 0,
2837 AC_VERB_SET_POWER_STATE, target);
2838 }
2839}
2840
2841#ifdef CONFIG_SND_HDA_RECONFIG
2842/* execute additional init verbs */
2843static void hda_exec_init_verbs(struct hda_codec *codec)
2844{
2845 if (codec->init_verbs.list)
2846 snd_hda_sequence_write(codec, codec->init_verbs.list);
2847}
2848#else
2849static inline void hda_exec_init_verbs(struct hda_codec *codec) {}
2850#endif
2851
2852#ifdef CONFIG_PM
2853/* update the power on/off account with the current jiffies */
2854static void update_power_acct(struct hda_codec *codec, bool on)
2855{
2856 unsigned long delta = jiffies - codec->power_jiffies;
2857
2858 if (on)
2859 codec->power_on_acct += delta;
2860 else
2861 codec->power_off_acct += delta;
2862 codec->power_jiffies += delta;
2863}
2864
2865void snd_hda_update_power_acct(struct hda_codec *codec)
2866{
2867 update_power_acct(codec, hda_codec_is_power_on(codec));
2868}
2869
2870/*
2871 * call suspend and power-down; used both from PM and power-save
2872 * this function returns the power state in the end
2873 */
2874static unsigned int hda_call_codec_suspend(struct hda_codec *codec)
2875{
2876 unsigned int state;
2877
2878 snd_hdac_enter_pm(&codec->core);
2879 if (codec->patch_ops.suspend)
2880 codec->patch_ops.suspend(codec);
2881 hda_cleanup_all_streams(codec);
2882 state = hda_set_power_state(codec, AC_PWRST_D3);
2883 update_power_acct(codec, true);
2884 snd_hdac_leave_pm(&codec->core);
2885 return state;
2886}
2887
2888/*
2889 * kick up codec; used both from PM and power-save
2890 */
2891static void hda_call_codec_resume(struct hda_codec *codec)
2892{
2893 snd_hdac_enter_pm(&codec->core);
2894 if (codec->core.regmap)
2895 regcache_mark_dirty(codec->core.regmap);
2896
2897 codec->power_jiffies = jiffies;
2898
2899 hda_set_power_state(codec, AC_PWRST_D0);
2900 restore_shutup_pins(codec);
2901 hda_exec_init_verbs(codec);
2902 snd_hda_jack_set_dirty_all(codec);
2903 if (codec->patch_ops.resume)
2904 codec->patch_ops.resume(codec);
2905 else {
2906 if (codec->patch_ops.init)
2907 codec->patch_ops.init(codec);
2908 if (codec->core.regmap)
2909 regcache_sync(codec->core.regmap);
2910 }
2911
2912 if (codec->jackpoll_interval)
2913 hda_jackpoll_work(&codec->jackpoll_work.work);
2914 else
2915 snd_hda_jack_report_sync(codec);
2916 codec->core.dev.power.power_state = PMSG_ON;
2917 snd_hdac_leave_pm(&codec->core);
2918}
2919
2920static int hda_codec_runtime_suspend(struct device *dev)
2921{
2922 struct hda_codec *codec = dev_to_hda_codec(dev);
2923 unsigned int state;
2924
2925 cancel_delayed_work_sync(&codec->jackpoll_work);
2926 state = hda_call_codec_suspend(codec);
2927 if (codec->link_down_at_suspend ||
2928 (codec_has_clkstop(codec) && codec_has_epss(codec) &&
2929 (state & AC_PWRST_CLK_STOP_OK)))
2930 snd_hdac_codec_link_down(&codec->core);
2931 codec_display_power(codec, false);
2932 return 0;
2933}
2934
2935static int hda_codec_runtime_resume(struct device *dev)
2936{
2937 struct hda_codec *codec = dev_to_hda_codec(dev);
2938
2939 codec_display_power(codec, true);
2940 snd_hdac_codec_link_up(&codec->core);
2941 hda_call_codec_resume(codec);
2942 pm_runtime_mark_last_busy(dev);
2943 return 0;
2944}
2945#endif /* CONFIG_PM */
2946
2947#ifdef CONFIG_PM_SLEEP
2948static int hda_codec_force_resume(struct device *dev)
2949{
2950 struct hda_codec *codec = dev_to_hda_codec(dev);
2951 bool forced_resume = !codec->relaxed_resume && codec->jacktbl.used;
2952 int ret;
2953
2954 /* The get/put pair below enforces the runtime resume even if the
2955 * device hasn't been used at suspend time. This trick is needed to
2956 * update the jack state change during the sleep.
2957 */
2958 if (forced_resume)
2959 pm_runtime_get_noresume(dev);
2960 ret = pm_runtime_force_resume(dev);
2961 if (forced_resume)
2962 pm_runtime_put(dev);
2963 return ret;
2964}
2965
2966static int hda_codec_pm_suspend(struct device *dev)
2967{
2968 dev->power.power_state = PMSG_SUSPEND;
2969 return pm_runtime_force_suspend(dev);
2970}
2971
2972static int hda_codec_pm_resume(struct device *dev)
2973{
2974 dev->power.power_state = PMSG_RESUME;
2975 return hda_codec_force_resume(dev);
2976}
2977
2978static int hda_codec_pm_freeze(struct device *dev)
2979{
2980 dev->power.power_state = PMSG_FREEZE;
2981 return pm_runtime_force_suspend(dev);
2982}
2983
2984static int hda_codec_pm_thaw(struct device *dev)
2985{
2986 dev->power.power_state = PMSG_THAW;
2987 return hda_codec_force_resume(dev);
2988}
2989
2990static int hda_codec_pm_restore(struct device *dev)
2991{
2992 dev->power.power_state = PMSG_RESTORE;
2993 return hda_codec_force_resume(dev);
2994}
2995#endif /* CONFIG_PM_SLEEP */
2996
2997/* referred in hda_bind.c */
2998const struct dev_pm_ops hda_codec_driver_pm = {
2999#ifdef CONFIG_PM_SLEEP
3000 .suspend = hda_codec_pm_suspend,
3001 .resume = hda_codec_pm_resume,
3002 .freeze = hda_codec_pm_freeze,
3003 .thaw = hda_codec_pm_thaw,
3004 .poweroff = hda_codec_pm_suspend,
3005 .restore = hda_codec_pm_restore,
3006#endif /* CONFIG_PM_SLEEP */
3007 SET_RUNTIME_PM_OPS(hda_codec_runtime_suspend, hda_codec_runtime_resume,
3008 NULL)
3009};
3010
3011/*
3012 * add standard channel maps if not specified
3013 */
3014static int add_std_chmaps(struct hda_codec *codec)
3015{
3016 struct hda_pcm *pcm;
3017 int str, err;
3018
3019 list_for_each_entry(pcm, &codec->pcm_list_head, list) {
3020 for (str = 0; str < 2; str++) {
3021 struct hda_pcm_stream *hinfo = &pcm->stream[str];
3022 struct snd_pcm_chmap *chmap;
3023 const struct snd_pcm_chmap_elem *elem;
3024
3025 if (!pcm->pcm || pcm->own_chmap || !hinfo->substreams)
3026 continue;
3027 elem = hinfo->chmap ? hinfo->chmap : snd_pcm_std_chmaps;
3028 err = snd_pcm_add_chmap_ctls(pcm->pcm, str, elem,
3029 hinfo->channels_max,
3030 0, &chmap);
3031 if (err < 0)
3032 return err;
3033 chmap->channel_mask = SND_PCM_CHMAP_MASK_2468;
3034 }
3035 }
3036 return 0;
3037}
3038
3039/* default channel maps for 2.1 speakers;
3040 * since HD-audio supports only stereo, odd number channels are omitted
3041 */
3042const struct snd_pcm_chmap_elem snd_pcm_2_1_chmaps[] = {
3043 { .channels = 2,
3044 .map = { SNDRV_CHMAP_FL, SNDRV_CHMAP_FR } },
3045 { .channels = 4,
3046 .map = { SNDRV_CHMAP_FL, SNDRV_CHMAP_FR,
3047 SNDRV_CHMAP_LFE, SNDRV_CHMAP_LFE } },
3048 { }
3049};
3050EXPORT_SYMBOL_GPL(snd_pcm_2_1_chmaps);
3051
3052int snd_hda_codec_build_controls(struct hda_codec *codec)
3053{
3054 int err = 0;
3055 hda_exec_init_verbs(codec);
3056 /* continue to initialize... */
3057 if (codec->patch_ops.init)
3058 err = codec->patch_ops.init(codec);
3059 if (!err && codec->patch_ops.build_controls)
3060 err = codec->patch_ops.build_controls(codec);
3061 if (err < 0)
3062 return err;
3063
3064 /* we create chmaps here instead of build_pcms */
3065 err = add_std_chmaps(codec);
3066 if (err < 0)
3067 return err;
3068
3069 if (codec->jackpoll_interval)
3070 hda_jackpoll_work(&codec->jackpoll_work.work);
3071 else
3072 snd_hda_jack_report_sync(codec); /* call at the last init point */
3073 sync_power_up_states(codec);
3074 return 0;
3075}
3076EXPORT_SYMBOL_GPL(snd_hda_codec_build_controls);
3077
3078/*
3079 * PCM stuff
3080 */
3081static int hda_pcm_default_open_close(struct hda_pcm_stream *hinfo,
3082 struct hda_codec *codec,
3083 struct snd_pcm_substream *substream)
3084{
3085 return 0;
3086}
3087
3088static int hda_pcm_default_prepare(struct hda_pcm_stream *hinfo,
3089 struct hda_codec *codec,
3090 unsigned int stream_tag,
3091 unsigned int format,
3092 struct snd_pcm_substream *substream)
3093{
3094 snd_hda_codec_setup_stream(codec, hinfo->nid, stream_tag, 0, format);
3095 return 0;
3096}
3097
3098static int hda_pcm_default_cleanup(struct hda_pcm_stream *hinfo,
3099 struct hda_codec *codec,
3100 struct snd_pcm_substream *substream)
3101{
3102 snd_hda_codec_cleanup_stream(codec, hinfo->nid);
3103 return 0;
3104}
3105
3106static int set_pcm_default_values(struct hda_codec *codec,
3107 struct hda_pcm_stream *info)
3108{
3109 int err;
3110
3111 /* query support PCM information from the given NID */
3112 if (info->nid && (!info->rates || !info->formats)) {
3113 err = snd_hda_query_supported_pcm(codec, info->nid,
3114 info->rates ? NULL : &info->rates,
3115 info->formats ? NULL : &info->formats,
3116 info->maxbps ? NULL : &info->maxbps);
3117 if (err < 0)
3118 return err;
3119 }
3120 if (info->ops.open == NULL)
3121 info->ops.open = hda_pcm_default_open_close;
3122 if (info->ops.close == NULL)
3123 info->ops.close = hda_pcm_default_open_close;
3124 if (info->ops.prepare == NULL) {
3125 if (snd_BUG_ON(!info->nid))
3126 return -EINVAL;
3127 info->ops.prepare = hda_pcm_default_prepare;
3128 }
3129 if (info->ops.cleanup == NULL) {
3130 if (snd_BUG_ON(!info->nid))
3131 return -EINVAL;
3132 info->ops.cleanup = hda_pcm_default_cleanup;
3133 }
3134 return 0;
3135}
3136
3137/*
3138 * codec prepare/cleanup entries
3139 */
3140/**
3141 * snd_hda_codec_prepare - Prepare a stream
3142 * @codec: the HDA codec
3143 * @hinfo: PCM information
3144 * @stream: stream tag to assign
3145 * @format: format id to assign
3146 * @substream: PCM substream to assign
3147 *
3148 * Calls the prepare callback set by the codec with the given arguments.
3149 * Clean up the inactive streams when successful.
3150 */
3151int snd_hda_codec_prepare(struct hda_codec *codec,
3152 struct hda_pcm_stream *hinfo,
3153 unsigned int stream,
3154 unsigned int format,
3155 struct snd_pcm_substream *substream)
3156{
3157 int ret;
3158 mutex_lock(&codec->bus->prepare_mutex);
3159 if (hinfo->ops.prepare)
3160 ret = hinfo->ops.prepare(hinfo, codec, stream, format,
3161 substream);
3162 else
3163 ret = -ENODEV;
3164 if (ret >= 0)
3165 purify_inactive_streams(codec);
3166 mutex_unlock(&codec->bus->prepare_mutex);
3167 return ret;
3168}
3169EXPORT_SYMBOL_GPL(snd_hda_codec_prepare);
3170
3171/**
3172 * snd_hda_codec_cleanup - Prepare a stream
3173 * @codec: the HDA codec
3174 * @hinfo: PCM information
3175 * @substream: PCM substream
3176 *
3177 * Calls the cleanup callback set by the codec with the given arguments.
3178 */
3179void snd_hda_codec_cleanup(struct hda_codec *codec,
3180 struct hda_pcm_stream *hinfo,
3181 struct snd_pcm_substream *substream)
3182{
3183 mutex_lock(&codec->bus->prepare_mutex);
3184 if (hinfo->ops.cleanup)
3185 hinfo->ops.cleanup(hinfo, codec, substream);
3186 mutex_unlock(&codec->bus->prepare_mutex);
3187}
3188EXPORT_SYMBOL_GPL(snd_hda_codec_cleanup);
3189
3190/* global */
3191const char *snd_hda_pcm_type_name[HDA_PCM_NTYPES] = {
3192 "Audio", "SPDIF", "HDMI", "Modem"
3193};
3194
3195/*
3196 * get the empty PCM device number to assign
3197 */
3198static int get_empty_pcm_device(struct hda_bus *bus, unsigned int type)
3199{
3200 /* audio device indices; not linear to keep compatibility */
3201 /* assigned to static slots up to dev#10; if more needed, assign
3202 * the later slot dynamically (when CONFIG_SND_DYNAMIC_MINORS=y)
3203 */
3204 static int audio_idx[HDA_PCM_NTYPES][5] = {
3205 [HDA_PCM_TYPE_AUDIO] = { 0, 2, 4, 5, -1 },
3206 [HDA_PCM_TYPE_SPDIF] = { 1, -1 },
3207 [HDA_PCM_TYPE_HDMI] = { 3, 7, 8, 9, -1 },
3208 [HDA_PCM_TYPE_MODEM] = { 6, -1 },
3209 };
3210 int i;
3211
3212 if (type >= HDA_PCM_NTYPES) {
3213 dev_err(bus->card->dev, "Invalid PCM type %d\n", type);
3214 return -EINVAL;
3215 }
3216
3217 for (i = 0; audio_idx[type][i] >= 0; i++) {
3218#ifndef CONFIG_SND_DYNAMIC_MINORS
3219 if (audio_idx[type][i] >= 8)
3220 break;
3221#endif
3222 if (!test_and_set_bit(audio_idx[type][i], bus->pcm_dev_bits))
3223 return audio_idx[type][i];
3224 }
3225
3226#ifdef CONFIG_SND_DYNAMIC_MINORS
3227 /* non-fixed slots starting from 10 */
3228 for (i = 10; i < 32; i++) {
3229 if (!test_and_set_bit(i, bus->pcm_dev_bits))
3230 return i;
3231 }
3232#endif
3233
3234 dev_warn(bus->card->dev, "Too many %s devices\n",
3235 snd_hda_pcm_type_name[type]);
3236#ifndef CONFIG_SND_DYNAMIC_MINORS
3237 dev_warn(bus->card->dev,
3238 "Consider building the kernel with CONFIG_SND_DYNAMIC_MINORS=y\n");
3239#endif
3240 return -EAGAIN;
3241}
3242
3243/* call build_pcms ops of the given codec and set up the default parameters */
3244int snd_hda_codec_parse_pcms(struct hda_codec *codec)
3245{
3246 struct hda_pcm *cpcm;
3247 int err;
3248
3249 if (!list_empty(&codec->pcm_list_head))
3250 return 0; /* already parsed */
3251
3252 if (!codec->patch_ops.build_pcms)
3253 return 0;
3254
3255 err = codec->patch_ops.build_pcms(codec);
3256 if (err < 0) {
3257 codec_err(codec, "cannot build PCMs for #%d (error %d)\n",
3258 codec->core.addr, err);
3259 return err;
3260 }
3261
3262 list_for_each_entry(cpcm, &codec->pcm_list_head, list) {
3263 int stream;
3264
3265 for (stream = 0; stream < 2; stream++) {
3266 struct hda_pcm_stream *info = &cpcm->stream[stream];
3267
3268 if (!info->substreams)
3269 continue;
3270 err = set_pcm_default_values(codec, info);
3271 if (err < 0) {
3272 codec_warn(codec,
3273 "fail to setup default for PCM %s\n",
3274 cpcm->name);
3275 return err;
3276 }
3277 }
3278 }
3279
3280 return 0;
3281}
3282EXPORT_SYMBOL_GPL(snd_hda_codec_parse_pcms);
3283
3284/* assign all PCMs of the given codec */
3285int snd_hda_codec_build_pcms(struct hda_codec *codec)
3286{
3287 struct hda_bus *bus = codec->bus;
3288 struct hda_pcm *cpcm;
3289 int dev, err;
3290
3291 err = snd_hda_codec_parse_pcms(codec);
3292 if (err < 0)
3293 return err;
3294
3295 /* attach a new PCM streams */
3296 list_for_each_entry(cpcm, &codec->pcm_list_head, list) {
3297 if (cpcm->pcm)
3298 continue; /* already attached */
3299 if (!cpcm->stream[0].substreams && !cpcm->stream[1].substreams)
3300 continue; /* no substreams assigned */
3301
3302 dev = get_empty_pcm_device(bus, cpcm->pcm_type);
3303 if (dev < 0) {
3304 cpcm->device = SNDRV_PCM_INVALID_DEVICE;
3305 continue; /* no fatal error */
3306 }
3307 cpcm->device = dev;
3308 err = snd_hda_attach_pcm_stream(bus, codec, cpcm);
3309 if (err < 0) {
3310 codec_err(codec,
3311 "cannot attach PCM stream %d for codec #%d\n",
3312 dev, codec->core.addr);
3313 continue; /* no fatal error */
3314 }
3315 }
3316
3317 return 0;
3318}
3319
3320/**
3321 * snd_hda_add_new_ctls - create controls from the array
3322 * @codec: the HDA codec
3323 * @knew: the array of struct snd_kcontrol_new
3324 *
3325 * This helper function creates and add new controls in the given array.
3326 * The array must be terminated with an empty entry as terminator.
3327 *
3328 * Returns 0 if successful, or a negative error code.
3329 */
3330int snd_hda_add_new_ctls(struct hda_codec *codec,
3331 const struct snd_kcontrol_new *knew)
3332{
3333 int err;
3334
3335 for (; knew->name; knew++) {
3336 struct snd_kcontrol *kctl;
3337 int addr = 0, idx = 0;
3338 if (knew->iface == (__force snd_ctl_elem_iface_t)-1)
3339 continue; /* skip this codec private value */
3340 for (;;) {
3341 kctl = snd_ctl_new1(knew, codec);
3342 if (!kctl)
3343 return -ENOMEM;
3344 if (addr > 0)
3345 kctl->id.device = addr;
3346 if (idx > 0)
3347 kctl->id.index = idx;
3348 err = snd_hda_ctl_add(codec, 0, kctl);
3349 if (!err)
3350 break;
3351 /* try first with another device index corresponding to
3352 * the codec addr; if it still fails (or it's the
3353 * primary codec), then try another control index
3354 */
3355 if (!addr && codec->core.addr)
3356 addr = codec->core.addr;
3357 else if (!idx && !knew->index) {
3358 idx = find_empty_mixer_ctl_idx(codec,
3359 knew->name, 0);
3360 if (idx <= 0)
3361 return err;
3362 } else
3363 return err;
3364 }
3365 }
3366 return 0;
3367}
3368EXPORT_SYMBOL_GPL(snd_hda_add_new_ctls);
3369
3370#ifdef CONFIG_PM
3371static void codec_set_power_save(struct hda_codec *codec, int delay)
3372{
3373 struct device *dev = hda_codec_dev(codec);
3374
3375 if (delay == 0 && codec->auto_runtime_pm)
3376 delay = 3000;
3377
3378 if (delay > 0) {
3379 pm_runtime_set_autosuspend_delay(dev, delay);
3380 pm_runtime_use_autosuspend(dev);
3381 pm_runtime_allow(dev);
3382 if (!pm_runtime_suspended(dev))
3383 pm_runtime_mark_last_busy(dev);
3384 } else {
3385 pm_runtime_dont_use_autosuspend(dev);
3386 pm_runtime_forbid(dev);
3387 }
3388}
3389
3390/**
3391 * snd_hda_set_power_save - reprogram autosuspend for the given delay
3392 * @bus: HD-audio bus
3393 * @delay: autosuspend delay in msec, 0 = off
3394 *
3395 * Synchronize the runtime PM autosuspend state from the power_save option.
3396 */
3397void snd_hda_set_power_save(struct hda_bus *bus, int delay)
3398{
3399 struct hda_codec *c;
3400
3401 list_for_each_codec(c, bus)
3402 codec_set_power_save(c, delay);
3403}
3404EXPORT_SYMBOL_GPL(snd_hda_set_power_save);
3405
3406/**
3407 * snd_hda_check_amp_list_power - Check the amp list and update the power
3408 * @codec: HD-audio codec
3409 * @check: the object containing an AMP list and the status
3410 * @nid: NID to check / update
3411 *
3412 * Check whether the given NID is in the amp list. If it's in the list,
3413 * check the current AMP status, and update the the power-status according
3414 * to the mute status.
3415 *
3416 * This function is supposed to be set or called from the check_power_status
3417 * patch ops.
3418 */
3419int snd_hda_check_amp_list_power(struct hda_codec *codec,
3420 struct hda_loopback_check *check,
3421 hda_nid_t nid)
3422{
3423 const struct hda_amp_list *p;
3424 int ch, v;
3425
3426 if (!check->amplist)
3427 return 0;
3428 for (p = check->amplist; p->nid; p++) {
3429 if (p->nid == nid)
3430 break;
3431 }
3432 if (!p->nid)
3433 return 0; /* nothing changed */
3434
3435 for (p = check->amplist; p->nid; p++) {
3436 for (ch = 0; ch < 2; ch++) {
3437 v = snd_hda_codec_amp_read(codec, p->nid, ch, p->dir,
3438 p->idx);
3439 if (!(v & HDA_AMP_MUTE) && v > 0) {
3440 if (!check->power_on) {
3441 check->power_on = 1;
3442 snd_hda_power_up_pm(codec);
3443 }
3444 return 1;
3445 }
3446 }
3447 }
3448 if (check->power_on) {
3449 check->power_on = 0;
3450 snd_hda_power_down_pm(codec);
3451 }
3452 return 0;
3453}
3454EXPORT_SYMBOL_GPL(snd_hda_check_amp_list_power);
3455#endif
3456
3457/*
3458 * input MUX helper
3459 */
3460
3461/**
3462 * snd_hda_input_mux_info_info - Info callback helper for the input-mux enum
3463 * @imux: imux helper object
3464 * @uinfo: pointer to get/store the data
3465 */
3466int snd_hda_input_mux_info(const struct hda_input_mux *imux,
3467 struct snd_ctl_elem_info *uinfo)
3468{
3469 unsigned int index;
3470
3471 uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
3472 uinfo->count = 1;
3473 uinfo->value.enumerated.items = imux->num_items;
3474 if (!imux->num_items)
3475 return 0;
3476 index = uinfo->value.enumerated.item;
3477 if (index >= imux->num_items)
3478 index = imux->num_items - 1;
3479 strcpy(uinfo->value.enumerated.name, imux->items[index].label);
3480 return 0;
3481}
3482EXPORT_SYMBOL_GPL(snd_hda_input_mux_info);
3483
3484/**
3485 * snd_hda_input_mux_info_put - Put callback helper for the input-mux enum
3486 * @codec: the HDA codec
3487 * @imux: imux helper object
3488 * @ucontrol: pointer to get/store the data
3489 * @nid: input mux NID
3490 * @cur_val: pointer to get/store the current imux value
3491 */
3492int snd_hda_input_mux_put(struct hda_codec *codec,
3493 const struct hda_input_mux *imux,
3494 struct snd_ctl_elem_value *ucontrol,
3495 hda_nid_t nid,
3496 unsigned int *cur_val)
3497{
3498 unsigned int idx;
3499
3500 if (!imux->num_items)
3501 return 0;
3502 idx = ucontrol->value.enumerated.item[0];
3503 if (idx >= imux->num_items)
3504 idx = imux->num_items - 1;
3505 if (*cur_val == idx)
3506 return 0;
3507 snd_hda_codec_write_cache(codec, nid, 0, AC_VERB_SET_CONNECT_SEL,
3508 imux->items[idx].index);
3509 *cur_val = idx;
3510 return 1;
3511}
3512EXPORT_SYMBOL_GPL(snd_hda_input_mux_put);
3513
3514
3515/**
3516 * snd_hda_enum_helper_info - Helper for simple enum ctls
3517 * @kcontrol: ctl element
3518 * @uinfo: pointer to get/store the data
3519 * @num_items: number of enum items
3520 * @texts: enum item string array
3521 *
3522 * process kcontrol info callback of a simple string enum array
3523 * when @num_items is 0 or @texts is NULL, assume a boolean enum array
3524 */
3525int snd_hda_enum_helper_info(struct snd_kcontrol *kcontrol,
3526 struct snd_ctl_elem_info *uinfo,
3527 int num_items, const char * const *texts)
3528{
3529 static const char * const texts_default[] = {
3530 "Disabled", "Enabled"
3531 };
3532
3533 if (!texts || !num_items) {
3534 num_items = 2;
3535 texts = texts_default;
3536 }
3537
3538 return snd_ctl_enum_info(uinfo, 1, num_items, texts);
3539}
3540EXPORT_SYMBOL_GPL(snd_hda_enum_helper_info);
3541
3542/*
3543 * Multi-channel / digital-out PCM helper functions
3544 */
3545
3546/* setup SPDIF output stream */
3547static void setup_dig_out_stream(struct hda_codec *codec, hda_nid_t nid,
3548 unsigned int stream_tag, unsigned int format)
3549{
3550 struct hda_spdif_out *spdif;
3551 unsigned int curr_fmt;
3552 bool reset;
3553
3554 spdif = snd_hda_spdif_out_of_nid(codec, nid);
3555 /* Add sanity check to pass klockwork check.
3556 * This should never happen.
3557 */
3558 if (WARN_ON(spdif == NULL))
3559 return;
3560
3561 curr_fmt = snd_hda_codec_read(codec, nid, 0,
3562 AC_VERB_GET_STREAM_FORMAT, 0);
3563 reset = codec->spdif_status_reset &&
3564 (spdif->ctls & AC_DIG1_ENABLE) &&
3565 curr_fmt != format;
3566
3567 /* turn off SPDIF if needed; otherwise the IEC958 bits won't be
3568 updated */
3569 if (reset)
3570 set_dig_out_convert(codec, nid,
3571 spdif->ctls & ~AC_DIG1_ENABLE & 0xff,
3572 -1);
3573 snd_hda_codec_setup_stream(codec, nid, stream_tag, 0, format);
3574 if (codec->slave_dig_outs) {
3575 const hda_nid_t *d;
3576 for (d = codec->slave_dig_outs; *d; d++)
3577 snd_hda_codec_setup_stream(codec, *d, stream_tag, 0,
3578 format);
3579 }
3580 /* turn on again (if needed) */
3581 if (reset)
3582 set_dig_out_convert(codec, nid,
3583 spdif->ctls & 0xff, -1);
3584}
3585
3586static void cleanup_dig_out_stream(struct hda_codec *codec, hda_nid_t nid)
3587{
3588 snd_hda_codec_cleanup_stream(codec, nid);
3589 if (codec->slave_dig_outs) {
3590 const hda_nid_t *d;
3591 for (d = codec->slave_dig_outs; *d; d++)
3592 snd_hda_codec_cleanup_stream(codec, *d);
3593 }
3594}
3595
3596/**
3597 * snd_hda_multi_out_dig_open - open the digital out in the exclusive mode
3598 * @codec: the HDA codec
3599 * @mout: hda_multi_out object
3600 */
3601int snd_hda_multi_out_dig_open(struct hda_codec *codec,
3602 struct hda_multi_out *mout)
3603{
3604 mutex_lock(&codec->spdif_mutex);
3605 if (mout->dig_out_used == HDA_DIG_ANALOG_DUP)
3606 /* already opened as analog dup; reset it once */
3607 cleanup_dig_out_stream(codec, mout->dig_out_nid);
3608 mout->dig_out_used = HDA_DIG_EXCLUSIVE;
3609 mutex_unlock(&codec->spdif_mutex);
3610 return 0;
3611}
3612EXPORT_SYMBOL_GPL(snd_hda_multi_out_dig_open);
3613
3614/**
3615 * snd_hda_multi_out_dig_prepare - prepare the digital out stream
3616 * @codec: the HDA codec
3617 * @mout: hda_multi_out object
3618 * @stream_tag: stream tag to assign
3619 * @format: format id to assign
3620 * @substream: PCM substream to assign
3621 */
3622int snd_hda_multi_out_dig_prepare(struct hda_codec *codec,
3623 struct hda_multi_out *mout,
3624 unsigned int stream_tag,
3625 unsigned int format,
3626 struct snd_pcm_substream *substream)
3627{
3628 mutex_lock(&codec->spdif_mutex);
3629 setup_dig_out_stream(codec, mout->dig_out_nid, stream_tag, format);
3630 mutex_unlock(&codec->spdif_mutex);
3631 return 0;
3632}
3633EXPORT_SYMBOL_GPL(snd_hda_multi_out_dig_prepare);
3634
3635/**
3636 * snd_hda_multi_out_dig_cleanup - clean-up the digital out stream
3637 * @codec: the HDA codec
3638 * @mout: hda_multi_out object
3639 */
3640int snd_hda_multi_out_dig_cleanup(struct hda_codec *codec,
3641 struct hda_multi_out *mout)
3642{
3643 mutex_lock(&codec->spdif_mutex);
3644 cleanup_dig_out_stream(codec, mout->dig_out_nid);
3645 mutex_unlock(&codec->spdif_mutex);
3646 return 0;
3647}
3648EXPORT_SYMBOL_GPL(snd_hda_multi_out_dig_cleanup);
3649
3650/**
3651 * snd_hda_multi_out_dig_close - release the digital out stream
3652 * @codec: the HDA codec
3653 * @mout: hda_multi_out object
3654 */
3655int snd_hda_multi_out_dig_close(struct hda_codec *codec,
3656 struct hda_multi_out *mout)
3657{
3658 mutex_lock(&codec->spdif_mutex);
3659 mout->dig_out_used = 0;
3660 mutex_unlock(&codec->spdif_mutex);
3661 return 0;
3662}
3663EXPORT_SYMBOL_GPL(snd_hda_multi_out_dig_close);
3664
3665/**
3666 * snd_hda_multi_out_analog_open - open analog outputs
3667 * @codec: the HDA codec
3668 * @mout: hda_multi_out object
3669 * @substream: PCM substream to assign
3670 * @hinfo: PCM information to assign
3671 *
3672 * Open analog outputs and set up the hw-constraints.
3673 * If the digital outputs can be opened as slave, open the digital
3674 * outputs, too.
3675 */
3676int snd_hda_multi_out_analog_open(struct hda_codec *codec,
3677 struct hda_multi_out *mout,
3678 struct snd_pcm_substream *substream,
3679 struct hda_pcm_stream *hinfo)
3680{
3681 struct snd_pcm_runtime *runtime = substream->runtime;
3682 runtime->hw.channels_max = mout->max_channels;
3683 if (mout->dig_out_nid) {
3684 if (!mout->analog_rates) {
3685 mout->analog_rates = hinfo->rates;
3686 mout->analog_formats = hinfo->formats;
3687 mout->analog_maxbps = hinfo->maxbps;
3688 } else {
3689 runtime->hw.rates = mout->analog_rates;
3690 runtime->hw.formats = mout->analog_formats;
3691 hinfo->maxbps = mout->analog_maxbps;
3692 }
3693 if (!mout->spdif_rates) {
3694 snd_hda_query_supported_pcm(codec, mout->dig_out_nid,
3695 &mout->spdif_rates,
3696 &mout->spdif_formats,
3697 &mout->spdif_maxbps);
3698 }
3699 mutex_lock(&codec->spdif_mutex);
3700 if (mout->share_spdif) {
3701 if ((runtime->hw.rates & mout->spdif_rates) &&
3702 (runtime->hw.formats & mout->spdif_formats)) {
3703 runtime->hw.rates &= mout->spdif_rates;
3704 runtime->hw.formats &= mout->spdif_formats;
3705 if (mout->spdif_maxbps < hinfo->maxbps)
3706 hinfo->maxbps = mout->spdif_maxbps;
3707 } else {
3708 mout->share_spdif = 0;
3709 /* FIXME: need notify? */
3710 }
3711 }
3712 mutex_unlock(&codec->spdif_mutex);
3713 }
3714 return snd_pcm_hw_constraint_step(substream->runtime, 0,
3715 SNDRV_PCM_HW_PARAM_CHANNELS, 2);
3716}
3717EXPORT_SYMBOL_GPL(snd_hda_multi_out_analog_open);
3718
3719/**
3720 * snd_hda_multi_out_analog_prepare - Preapre the analog outputs.
3721 * @codec: the HDA codec
3722 * @mout: hda_multi_out object
3723 * @stream_tag: stream tag to assign
3724 * @format: format id to assign
3725 * @substream: PCM substream to assign
3726 *
3727 * Set up the i/o for analog out.
3728 * When the digital out is available, copy the front out to digital out, too.
3729 */
3730int snd_hda_multi_out_analog_prepare(struct hda_codec *codec,
3731 struct hda_multi_out *mout,
3732 unsigned int stream_tag,
3733 unsigned int format,
3734 struct snd_pcm_substream *substream)
3735{
3736 const hda_nid_t *nids = mout->dac_nids;
3737 int chs = substream->runtime->channels;
3738 struct hda_spdif_out *spdif;
3739 int i;
3740
3741 mutex_lock(&codec->spdif_mutex);
3742 spdif = snd_hda_spdif_out_of_nid(codec, mout->dig_out_nid);
3743 if (mout->dig_out_nid && mout->share_spdif &&
3744 mout->dig_out_used != HDA_DIG_EXCLUSIVE) {
3745 if (chs == 2 && spdif != NULL &&
3746 snd_hda_is_supported_format(codec, mout->dig_out_nid,
3747 format) &&
3748 !(spdif->status & IEC958_AES0_NONAUDIO)) {
3749 mout->dig_out_used = HDA_DIG_ANALOG_DUP;
3750 setup_dig_out_stream(codec, mout->dig_out_nid,
3751 stream_tag, format);
3752 } else {
3753 mout->dig_out_used = 0;
3754 cleanup_dig_out_stream(codec, mout->dig_out_nid);
3755 }
3756 }
3757 mutex_unlock(&codec->spdif_mutex);
3758
3759 /* front */
3760 snd_hda_codec_setup_stream(codec, nids[HDA_FRONT], stream_tag,
3761 0, format);
3762 if (!mout->no_share_stream &&
3763 mout->hp_nid && mout->hp_nid != nids[HDA_FRONT])
3764 /* headphone out will just decode front left/right (stereo) */
3765 snd_hda_codec_setup_stream(codec, mout->hp_nid, stream_tag,
3766 0, format);
3767 /* extra outputs copied from front */
3768 for (i = 0; i < ARRAY_SIZE(mout->hp_out_nid); i++)
3769 if (!mout->no_share_stream && mout->hp_out_nid[i])
3770 snd_hda_codec_setup_stream(codec,
3771 mout->hp_out_nid[i],
3772 stream_tag, 0, format);
3773
3774 /* surrounds */
3775 for (i = 1; i < mout->num_dacs; i++) {
3776 if (chs >= (i + 1) * 2) /* independent out */
3777 snd_hda_codec_setup_stream(codec, nids[i], stream_tag,
3778 i * 2, format);
3779 else if (!mout->no_share_stream) /* copy front */
3780 snd_hda_codec_setup_stream(codec, nids[i], stream_tag,
3781 0, format);
3782 }
3783
3784 /* extra surrounds */
3785 for (i = 0; i < ARRAY_SIZE(mout->extra_out_nid); i++) {
3786 int ch = 0;
3787 if (!mout->extra_out_nid[i])
3788 break;
3789 if (chs >= (i + 1) * 2)
3790 ch = i * 2;
3791 else if (!mout->no_share_stream)
3792 break;
3793 snd_hda_codec_setup_stream(codec, mout->extra_out_nid[i],
3794 stream_tag, ch, format);
3795 }
3796
3797 return 0;
3798}
3799EXPORT_SYMBOL_GPL(snd_hda_multi_out_analog_prepare);
3800
3801/**
3802 * snd_hda_multi_out_analog_cleanup - clean up the setting for analog out
3803 * @codec: the HDA codec
3804 * @mout: hda_multi_out object
3805 */
3806int snd_hda_multi_out_analog_cleanup(struct hda_codec *codec,
3807 struct hda_multi_out *mout)
3808{
3809 const hda_nid_t *nids = mout->dac_nids;
3810 int i;
3811
3812 for (i = 0; i < mout->num_dacs; i++)
3813 snd_hda_codec_cleanup_stream(codec, nids[i]);
3814 if (mout->hp_nid)
3815 snd_hda_codec_cleanup_stream(codec, mout->hp_nid);
3816 for (i = 0; i < ARRAY_SIZE(mout->hp_out_nid); i++)
3817 if (mout->hp_out_nid[i])
3818 snd_hda_codec_cleanup_stream(codec,
3819 mout->hp_out_nid[i]);
3820 for (i = 0; i < ARRAY_SIZE(mout->extra_out_nid); i++)
3821 if (mout->extra_out_nid[i])
3822 snd_hda_codec_cleanup_stream(codec,
3823 mout->extra_out_nid[i]);
3824 mutex_lock(&codec->spdif_mutex);
3825 if (mout->dig_out_nid && mout->dig_out_used == HDA_DIG_ANALOG_DUP) {
3826 cleanup_dig_out_stream(codec, mout->dig_out_nid);
3827 mout->dig_out_used = 0;
3828 }
3829 mutex_unlock(&codec->spdif_mutex);
3830 return 0;
3831}
3832EXPORT_SYMBOL_GPL(snd_hda_multi_out_analog_cleanup);
3833
3834/**
3835 * snd_hda_get_default_vref - Get the default (mic) VREF pin bits
3836 * @codec: the HDA codec
3837 * @pin: referred pin NID
3838 *
3839 * Guess the suitable VREF pin bits to be set as the pin-control value.
3840 * Note: the function doesn't set the AC_PINCTL_IN_EN bit.
3841 */
3842unsigned int snd_hda_get_default_vref(struct hda_codec *codec, hda_nid_t pin)
3843{
3844 unsigned int pincap;
3845 unsigned int oldval;
3846 oldval = snd_hda_codec_read(codec, pin, 0,
3847 AC_VERB_GET_PIN_WIDGET_CONTROL, 0);
3848 pincap = snd_hda_query_pin_caps(codec, pin);
3849 pincap = (pincap & AC_PINCAP_VREF) >> AC_PINCAP_VREF_SHIFT;
3850 /* Exception: if the default pin setup is vref50, we give it priority */
3851 if ((pincap & AC_PINCAP_VREF_80) && oldval != PIN_VREF50)
3852 return AC_PINCTL_VREF_80;
3853 else if (pincap & AC_PINCAP_VREF_50)
3854 return AC_PINCTL_VREF_50;
3855 else if (pincap & AC_PINCAP_VREF_100)
3856 return AC_PINCTL_VREF_100;
3857 else if (pincap & AC_PINCAP_VREF_GRD)
3858 return AC_PINCTL_VREF_GRD;
3859 return AC_PINCTL_VREF_HIZ;
3860}
3861EXPORT_SYMBOL_GPL(snd_hda_get_default_vref);
3862
3863/**
3864 * snd_hda_correct_pin_ctl - correct the pin ctl value for matching with the pin cap
3865 * @codec: the HDA codec
3866 * @pin: referred pin NID
3867 * @val: pin ctl value to audit
3868 */
3869unsigned int snd_hda_correct_pin_ctl(struct hda_codec *codec,
3870 hda_nid_t pin, unsigned int val)
3871{
3872 static unsigned int cap_lists[][2] = {
3873 { AC_PINCTL_VREF_100, AC_PINCAP_VREF_100 },
3874 { AC_PINCTL_VREF_80, AC_PINCAP_VREF_80 },
3875 { AC_PINCTL_VREF_50, AC_PINCAP_VREF_50 },
3876 { AC_PINCTL_VREF_GRD, AC_PINCAP_VREF_GRD },
3877 };
3878 unsigned int cap;
3879
3880 if (!val)
3881 return 0;
3882 cap = snd_hda_query_pin_caps(codec, pin);
3883 if (!cap)
3884 return val; /* don't know what to do... */
3885
3886 if (val & AC_PINCTL_OUT_EN) {
3887 if (!(cap & AC_PINCAP_OUT))
3888 val &= ~(AC_PINCTL_OUT_EN | AC_PINCTL_HP_EN);
3889 else if ((val & AC_PINCTL_HP_EN) && !(cap & AC_PINCAP_HP_DRV))
3890 val &= ~AC_PINCTL_HP_EN;
3891 }
3892
3893 if (val & AC_PINCTL_IN_EN) {
3894 if (!(cap & AC_PINCAP_IN))
3895 val &= ~(AC_PINCTL_IN_EN | AC_PINCTL_VREFEN);
3896 else {
3897 unsigned int vcap, vref;
3898 int i;
3899 vcap = (cap & AC_PINCAP_VREF) >> AC_PINCAP_VREF_SHIFT;
3900 vref = val & AC_PINCTL_VREFEN;
3901 for (i = 0; i < ARRAY_SIZE(cap_lists); i++) {
3902 if (vref == cap_lists[i][0] &&
3903 !(vcap & cap_lists[i][1])) {
3904 if (i == ARRAY_SIZE(cap_lists) - 1)
3905 vref = AC_PINCTL_VREF_HIZ;
3906 else
3907 vref = cap_lists[i + 1][0];
3908 }
3909 }
3910 val &= ~AC_PINCTL_VREFEN;
3911 val |= vref;
3912 }
3913 }
3914
3915 return val;
3916}
3917EXPORT_SYMBOL_GPL(snd_hda_correct_pin_ctl);
3918
3919/**
3920 * _snd_hda_pin_ctl - Helper to set pin ctl value
3921 * @codec: the HDA codec
3922 * @pin: referred pin NID
3923 * @val: pin control value to set
3924 * @cached: access over codec pinctl cache or direct write
3925 *
3926 * This function is a helper to set a pin ctl value more safely.
3927 * It corrects the pin ctl value via snd_hda_correct_pin_ctl(), stores the
3928 * value in pin target array via snd_hda_codec_set_pin_target(), then
3929 * actually writes the value via either snd_hda_codec_write_cache() or
3930 * snd_hda_codec_write() depending on @cached flag.
3931 */
3932int _snd_hda_set_pin_ctl(struct hda_codec *codec, hda_nid_t pin,
3933 unsigned int val, bool cached)
3934{
3935 val = snd_hda_correct_pin_ctl(codec, pin, val);
3936 snd_hda_codec_set_pin_target(codec, pin, val);
3937 if (cached)
3938 return snd_hda_codec_write_cache(codec, pin, 0,
3939 AC_VERB_SET_PIN_WIDGET_CONTROL, val);
3940 else
3941 return snd_hda_codec_write(codec, pin, 0,
3942 AC_VERB_SET_PIN_WIDGET_CONTROL, val);
3943}
3944EXPORT_SYMBOL_GPL(_snd_hda_set_pin_ctl);
3945
3946/**
3947 * snd_hda_add_imux_item - Add an item to input_mux
3948 * @codec: the HDA codec
3949 * @imux: imux helper object
3950 * @label: the name of imux item to assign
3951 * @index: index number of imux item to assign
3952 * @type_idx: pointer to store the resultant label index
3953 *
3954 * When the same label is used already in the existing items, the number
3955 * suffix is appended to the label. This label index number is stored
3956 * to type_idx when non-NULL pointer is given.
3957 */
3958int snd_hda_add_imux_item(struct hda_codec *codec,
3959 struct hda_input_mux *imux, const char *label,
3960 int index, int *type_idx)
3961{
3962 int i, label_idx = 0;
3963 if (imux->num_items >= HDA_MAX_NUM_INPUTS) {
3964 codec_err(codec, "hda_codec: Too many imux items!\n");
3965 return -EINVAL;
3966 }
3967 for (i = 0; i < imux->num_items; i++) {
3968 if (!strncmp(label, imux->items[i].label, strlen(label)))
3969 label_idx++;
3970 }
3971 if (type_idx)
3972 *type_idx = label_idx;
3973 if (label_idx > 0)
3974 snprintf(imux->items[imux->num_items].label,
3975 sizeof(imux->items[imux->num_items].label),
3976 "%s %d", label, label_idx);
3977 else
3978 strlcpy(imux->items[imux->num_items].label, label,
3979 sizeof(imux->items[imux->num_items].label));
3980 imux->items[imux->num_items].index = index;
3981 imux->num_items++;
3982 return 0;
3983}
3984EXPORT_SYMBOL_GPL(snd_hda_add_imux_item);
3985
3986/**
3987 * snd_hda_bus_reset_codecs - Reset the bus
3988 * @bus: HD-audio bus
3989 */
3990void snd_hda_bus_reset_codecs(struct hda_bus *bus)
3991{
3992 struct hda_codec *codec;
3993
3994 list_for_each_codec(codec, bus) {
3995 /* FIXME: maybe a better way needed for forced reset */
3996 if (current_work() != &codec->jackpoll_work.work)
3997 cancel_delayed_work_sync(&codec->jackpoll_work);
3998#ifdef CONFIG_PM
3999 if (hda_codec_is_power_on(codec)) {
4000 hda_call_codec_suspend(codec);
4001 hda_call_codec_resume(codec);
4002 }
4003#endif
4004 }
4005}
4006
4007/**
4008 * snd_print_pcm_bits - Print the supported PCM fmt bits to the string buffer
4009 * @pcm: PCM caps bits
4010 * @buf: the string buffer to write
4011 * @buflen: the max buffer length
4012 *
4013 * used by hda_proc.c and hda_eld.c
4014 */
4015void snd_print_pcm_bits(int pcm, char *buf, int buflen)
4016{
4017 static unsigned int bits[] = { 8, 16, 20, 24, 32 };
4018 int i, j;
4019
4020 for (i = 0, j = 0; i < ARRAY_SIZE(bits); i++)
4021 if (pcm & (AC_SUPPCM_BITS_8 << i))
4022 j += snprintf(buf + j, buflen - j, " %d", bits[i]);
4023
4024 buf[j] = '\0'; /* necessary when j == 0 */
4025}
4026EXPORT_SYMBOL_GPL(snd_print_pcm_bits);
4027
4028MODULE_DESCRIPTION("HDA codec core");
4029MODULE_LICENSE("GPL");