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Linux/sound/pci/hda/hda_codec.c

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  1 /*
  2  * Universal Interface for Intel High Definition Audio Codec
  3  *
  4  * Copyright (c) 2004 Takashi Iwai <tiwai@suse.de>
  5  *
  6  *
  7  *  This driver is free software; you can redistribute it and/or modify
  8  *  it under the terms of the GNU General Public License as published by
  9  *  the Free Software Foundation; either version 2 of the License, or
 10  *  (at your option) any later version.
 11  *
 12  *  This driver is distributed in the hope that it will be useful,
 13  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
 14  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 15  *  GNU General Public License for more details.
 16  *
 17  *  You should have received a copy of the GNU General Public License
 18  *  along with this program; if not, write to the Free Software
 19  *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
 20  */
 21 
 22 #include <linux/init.h>
 23 #include <linux/delay.h>
 24 #include <linux/slab.h>
 25 #include <linux/mutex.h>
 26 #include <linux/module.h>
 27 #include <linux/pm.h>
 28 #include <linux/pm_runtime.h>
 29 #include <sound/core.h>
 30 #include "hda_codec.h"
 31 #include <sound/asoundef.h>
 32 #include <sound/tlv.h>
 33 #include <sound/initval.h>
 34 #include <sound/jack.h>
 35 #include "hda_local.h"
 36 #include "hda_beep.h"
 37 #include "hda_jack.h"
 38 #include <sound/hda_hwdep.h>
 39 
 40 #define codec_in_pm(codec)              snd_hdac_is_in_pm(&codec->core)
 41 #define hda_codec_is_power_on(codec)    snd_hdac_is_power_on(&codec->core)
 42 #define codec_has_epss(codec) \
 43         ((codec)->core.power_caps & AC_PWRST_EPSS)
 44 #define codec_has_clkstop(codec) \
 45         ((codec)->core.power_caps & AC_PWRST_CLKSTOP)
 46 
 47 /*
 48  * Send and receive a verb - passed to exec_verb override for hdac_device
 49  */
 50 static int codec_exec_verb(struct hdac_device *dev, unsigned int cmd,
 51                            unsigned int flags, unsigned int *res)
 52 {
 53         struct hda_codec *codec = container_of(dev, struct hda_codec, core);
 54         struct hda_bus *bus = codec->bus;
 55         int err;
 56 
 57         if (cmd == ~0)
 58                 return -1;
 59 
 60  again:
 61         snd_hda_power_up_pm(codec);
 62         mutex_lock(&bus->core.cmd_mutex);
 63         if (flags & HDA_RW_NO_RESPONSE_FALLBACK)
 64                 bus->no_response_fallback = 1;
 65         err = snd_hdac_bus_exec_verb_unlocked(&bus->core, codec->core.addr,
 66                                               cmd, res);
 67         bus->no_response_fallback = 0;
 68         mutex_unlock(&bus->core.cmd_mutex);
 69         snd_hda_power_down_pm(codec);
 70         if (!codec_in_pm(codec) && res && err == -EAGAIN) {
 71                 if (bus->response_reset) {
 72                         codec_dbg(codec,
 73                                   "resetting BUS due to fatal communication error\n");
 74                         snd_hda_bus_reset(bus);
 75                 }
 76                 goto again;
 77         }
 78         /* clear reset-flag when the communication gets recovered */
 79         if (!err || codec_in_pm(codec))
 80                 bus->response_reset = 0;
 81         return err;
 82 }
 83 
 84 /**
 85  * snd_hda_sequence_write - sequence writes
 86  * @codec: the HDA codec
 87  * @seq: VERB array to send
 88  *
 89  * Send the commands sequentially from the given array.
 90  * The array must be terminated with NID=0.
 91  */
 92 void snd_hda_sequence_write(struct hda_codec *codec, const struct hda_verb *seq)
 93 {
 94         for (; seq->nid; seq++)
 95                 snd_hda_codec_write(codec, seq->nid, 0, seq->verb, seq->param);
 96 }
 97 EXPORT_SYMBOL_GPL(snd_hda_sequence_write);
 98 
 99 /* connection list element */
100 struct hda_conn_list {
101         struct list_head list;
102         int len;
103         hda_nid_t nid;
104         hda_nid_t conns[0];
105 };
106 
107 /* look up the cached results */
108 static struct hda_conn_list *
109 lookup_conn_list(struct hda_codec *codec, hda_nid_t nid)
110 {
111         struct hda_conn_list *p;
112         list_for_each_entry(p, &codec->conn_list, list) {
113                 if (p->nid == nid)
114                         return p;
115         }
116         return NULL;
117 }
118 
119 static int add_conn_list(struct hda_codec *codec, hda_nid_t nid, int len,
120                          const hda_nid_t *list)
121 {
122         struct hda_conn_list *p;
123 
124         p = kmalloc(sizeof(*p) + len * sizeof(hda_nid_t), GFP_KERNEL);
125         if (!p)
126                 return -ENOMEM;
127         p->len = len;
128         p->nid = nid;
129         memcpy(p->conns, list, len * sizeof(hda_nid_t));
130         list_add(&p->list, &codec->conn_list);
131         return 0;
132 }
133 
134 static void remove_conn_list(struct hda_codec *codec)
135 {
136         while (!list_empty(&codec->conn_list)) {
137                 struct hda_conn_list *p;
138                 p = list_first_entry(&codec->conn_list, typeof(*p), list);
139                 list_del(&p->list);
140                 kfree(p);
141         }
142 }
143 
144 /* read the connection and add to the cache */
145 static int read_and_add_raw_conns(struct hda_codec *codec, hda_nid_t nid)
146 {
147         hda_nid_t list[32];
148         hda_nid_t *result = list;
149         int len;
150 
151         len = snd_hda_get_raw_connections(codec, nid, list, ARRAY_SIZE(list));
152         if (len == -ENOSPC) {
153                 len = snd_hda_get_num_raw_conns(codec, nid);
154                 result = kmalloc_array(len, sizeof(hda_nid_t), GFP_KERNEL);
155                 if (!result)
156                         return -ENOMEM;
157                 len = snd_hda_get_raw_connections(codec, nid, result, len);
158         }
159         if (len >= 0)
160                 len = snd_hda_override_conn_list(codec, nid, len, result);
161         if (result != list)
162                 kfree(result);
163         return len;
164 }
165 
166 /**
167  * snd_hda_get_conn_list - get connection list
168  * @codec: the HDA codec
169  * @nid: NID to parse
170  * @listp: the pointer to store NID list
171  *
172  * Parses the connection list of the given widget and stores the pointer
173  * to the list of NIDs.
174  *
175  * Returns the number of connections, or a negative error code.
176  *
177  * Note that the returned pointer isn't protected against the list
178  * modification.  If snd_hda_override_conn_list() might be called
179  * concurrently, protect with a mutex appropriately.
180  */
181 int snd_hda_get_conn_list(struct hda_codec *codec, hda_nid_t nid,
182                           const hda_nid_t **listp)
183 {
184         bool added = false;
185 
186         for (;;) {
187                 int err;
188                 const struct hda_conn_list *p;
189 
190                 /* if the connection-list is already cached, read it */
191                 p = lookup_conn_list(codec, nid);
192                 if (p) {
193                         if (listp)
194                                 *listp = p->conns;
195                         return p->len;
196                 }
197                 if (snd_BUG_ON(added))
198                         return -EINVAL;
199 
200                 err = read_and_add_raw_conns(codec, nid);
201                 if (err < 0)
202                         return err;
203                 added = true;
204         }
205 }
206 EXPORT_SYMBOL_GPL(snd_hda_get_conn_list);
207 
208 /**
209  * snd_hda_get_connections - copy connection list
210  * @codec: the HDA codec
211  * @nid: NID to parse
212  * @conn_list: connection list array; when NULL, checks only the size
213  * @max_conns: max. number of connections to store
214  *
215  * Parses the connection list of the given widget and stores the list
216  * of NIDs.
217  *
218  * Returns the number of connections, or a negative error code.
219  */
220 int snd_hda_get_connections(struct hda_codec *codec, hda_nid_t nid,
221                             hda_nid_t *conn_list, int max_conns)
222 {
223         const hda_nid_t *list;
224         int len = snd_hda_get_conn_list(codec, nid, &list);
225 
226         if (len > 0 && conn_list) {
227                 if (len > max_conns) {
228                         codec_err(codec, "Too many connections %d for NID 0x%x\n",
229                                    len, nid);
230                         return -EINVAL;
231                 }
232                 memcpy(conn_list, list, len * sizeof(hda_nid_t));
233         }
234 
235         return len;
236 }
237 EXPORT_SYMBOL_GPL(snd_hda_get_connections);
238 
239 /**
240  * snd_hda_override_conn_list - add/modify the connection-list to cache
241  * @codec: the HDA codec
242  * @nid: NID to parse
243  * @len: number of connection list entries
244  * @list: the list of connection entries
245  *
246  * Add or modify the given connection-list to the cache.  If the corresponding
247  * cache already exists, invalidate it and append a new one.
248  *
249  * Returns zero or a negative error code.
250  */
251 int snd_hda_override_conn_list(struct hda_codec *codec, hda_nid_t nid, int len,
252                                const hda_nid_t *list)
253 {
254         struct hda_conn_list *p;
255 
256         p = lookup_conn_list(codec, nid);
257         if (p) {
258                 list_del(&p->list);
259                 kfree(p);
260         }
261 
262         return add_conn_list(codec, nid, len, list);
263 }
264 EXPORT_SYMBOL_GPL(snd_hda_override_conn_list);
265 
266 /**
267  * snd_hda_get_conn_index - get the connection index of the given NID
268  * @codec: the HDA codec
269  * @mux: NID containing the list
270  * @nid: NID to select
271  * @recursive: 1 when searching NID recursively, otherwise 0
272  *
273  * Parses the connection list of the widget @mux and checks whether the
274  * widget @nid is present.  If it is, return the connection index.
275  * Otherwise it returns -1.
276  */
277 int snd_hda_get_conn_index(struct hda_codec *codec, hda_nid_t mux,
278                            hda_nid_t nid, int recursive)
279 {
280         const hda_nid_t *conn;
281         int i, nums;
282 
283         nums = snd_hda_get_conn_list(codec, mux, &conn);
284         for (i = 0; i < nums; i++)
285                 if (conn[i] == nid)
286                         return i;
287         if (!recursive)
288                 return -1;
289         if (recursive > 10) {
290                 codec_dbg(codec, "too deep connection for 0x%x\n", nid);
291                 return -1;
292         }
293         recursive++;
294         for (i = 0; i < nums; i++) {
295                 unsigned int type = get_wcaps_type(get_wcaps(codec, conn[i]));
296                 if (type == AC_WID_PIN || type == AC_WID_AUD_OUT)
297                         continue;
298                 if (snd_hda_get_conn_index(codec, conn[i], nid, recursive) >= 0)
299                         return i;
300         }
301         return -1;
302 }
303 EXPORT_SYMBOL_GPL(snd_hda_get_conn_index);
304 
305 /**
306  * snd_hda_get_num_devices - get DEVLIST_LEN parameter of the given widget
307  *  @codec: the HDA codec
308  *  @nid: NID of the pin to parse
309  *
310  * Get the device entry number on the given widget. This is a feature of
311  * DP MST audio. Each pin can have several device entries in it.
312  */
313 unsigned int snd_hda_get_num_devices(struct hda_codec *codec, hda_nid_t nid)
314 {
315         unsigned int wcaps = get_wcaps(codec, nid);
316         unsigned int parm;
317 
318         if (!codec->dp_mst || !(wcaps & AC_WCAP_DIGITAL) ||
319             get_wcaps_type(wcaps) != AC_WID_PIN)
320                 return 0;
321 
322         parm = snd_hdac_read_parm_uncached(&codec->core, nid, AC_PAR_DEVLIST_LEN);
323         if (parm == -1)
324                 parm = 0;
325         return parm & AC_DEV_LIST_LEN_MASK;
326 }
327 EXPORT_SYMBOL_GPL(snd_hda_get_num_devices);
328 
329 /**
330  * snd_hda_get_devices - copy device list without cache
331  * @codec: the HDA codec
332  * @nid: NID of the pin to parse
333  * @dev_list: device list array
334  * @max_devices: max. number of devices to store
335  *
336  * Copy the device list. This info is dynamic and so not cached.
337  * Currently called only from hda_proc.c, so not exported.
338  */
339 int snd_hda_get_devices(struct hda_codec *codec, hda_nid_t nid,
340                         u8 *dev_list, int max_devices)
341 {
342         unsigned int parm;
343         int i, dev_len, devices;
344 
345         parm = snd_hda_get_num_devices(codec, nid);
346         if (!parm)      /* not multi-stream capable */
347                 return 0;
348 
349         dev_len = parm + 1;
350         dev_len = dev_len < max_devices ? dev_len : max_devices;
351 
352         devices = 0;
353         while (devices < dev_len) {
354                 if (snd_hdac_read(&codec->core, nid,
355                                   AC_VERB_GET_DEVICE_LIST, devices, &parm))
356                         break; /* error */
357 
358                 for (i = 0; i < 8; i++) {
359                         dev_list[devices] = (u8)parm;
360                         parm >>= 4;
361                         devices++;
362                         if (devices >= dev_len)
363                                 break;
364                 }
365         }
366         return devices;
367 }
368 
369 /**
370  * snd_hda_get_dev_select - get device entry select on the pin
371  * @codec: the HDA codec
372  * @nid: NID of the pin to get device entry select
373  *
374  * Get the devcie entry select on the pin. Return the device entry
375  * id selected on the pin. Return 0 means the first device entry
376  * is selected or MST is not supported.
377  */
378 int snd_hda_get_dev_select(struct hda_codec *codec, hda_nid_t nid)
379 {
380         /* not support dp_mst will always return 0, using first dev_entry */
381         if (!codec->dp_mst)
382                 return 0;
383 
384         return snd_hda_codec_read(codec, nid, 0, AC_VERB_GET_DEVICE_SEL, 0);
385 }
386 EXPORT_SYMBOL_GPL(snd_hda_get_dev_select);
387 
388 /**
389  * snd_hda_set_dev_select - set device entry select on the pin
390  * @codec: the HDA codec
391  * @nid: NID of the pin to set device entry select
392  * @dev_id: device entry id to be set
393  *
394  * Set the device entry select on the pin nid.
395  */
396 int snd_hda_set_dev_select(struct hda_codec *codec, hda_nid_t nid, int dev_id)
397 {
398         int ret, num_devices;
399 
400         /* not support dp_mst will always return 0, using first dev_entry */
401         if (!codec->dp_mst)
402                 return 0;
403 
404         /* AC_PAR_DEVLIST_LEN is 0 based. */
405         num_devices = snd_hda_get_num_devices(codec, nid) + 1;
406         /* If Device List Length is 0 (num_device = 1),
407          * the pin is not multi stream capable.
408          * Do nothing in this case.
409          */
410         if (num_devices == 1)
411                 return 0;
412 
413         /* Behavior of setting index being equal to or greater than
414          * Device List Length is not predictable
415          */
416         if (num_devices <= dev_id)
417                 return -EINVAL;
418 
419         ret = snd_hda_codec_write(codec, nid, 0,
420                         AC_VERB_SET_DEVICE_SEL, dev_id);
421 
422         return ret;
423 }
424 EXPORT_SYMBOL_GPL(snd_hda_set_dev_select);
425 
426 /*
427  * read widget caps for each widget and store in cache
428  */
429 static int read_widget_caps(struct hda_codec *codec, hda_nid_t fg_node)
430 {
431         int i;
432         hda_nid_t nid;
433 
434         codec->wcaps = kmalloc_array(codec->core.num_nodes, 4, GFP_KERNEL);
435         if (!codec->wcaps)
436                 return -ENOMEM;
437         nid = codec->core.start_nid;
438         for (i = 0; i < codec->core.num_nodes; i++, nid++)
439                 codec->wcaps[i] = snd_hdac_read_parm_uncached(&codec->core,
440                                         nid, AC_PAR_AUDIO_WIDGET_CAP);
441         return 0;
442 }
443 
444 /* read all pin default configurations and save codec->init_pins */
445 static int read_pin_defaults(struct hda_codec *codec)
446 {
447         hda_nid_t nid;
448 
449         for_each_hda_codec_node(nid, codec) {
450                 struct hda_pincfg *pin;
451                 unsigned int wcaps = get_wcaps(codec, nid);
452                 unsigned int wid_type = get_wcaps_type(wcaps);
453                 if (wid_type != AC_WID_PIN)
454                         continue;
455                 pin = snd_array_new(&codec->init_pins);
456                 if (!pin)
457                         return -ENOMEM;
458                 pin->nid = nid;
459                 pin->cfg = snd_hda_codec_read(codec, nid, 0,
460                                               AC_VERB_GET_CONFIG_DEFAULT, 0);
461                 /*
462                  * all device entries are the same widget control so far
463                  * fixme: if any codec is different, need fix here
464                  */
465                 pin->ctrl = snd_hda_codec_read(codec, nid, 0,
466                                                AC_VERB_GET_PIN_WIDGET_CONTROL,
467                                                0);
468         }
469         return 0;
470 }
471 
472 /* look up the given pin config list and return the item matching with NID */
473 static struct hda_pincfg *look_up_pincfg(struct hda_codec *codec,
474                                          struct snd_array *array,
475                                          hda_nid_t nid)
476 {
477         struct hda_pincfg *pin;
478         int i;
479 
480         snd_array_for_each(array, i, pin) {
481                 if (pin->nid == nid)
482                         return pin;
483         }
484         return NULL;
485 }
486 
487 /* set the current pin config value for the given NID.
488  * the value is cached, and read via snd_hda_codec_get_pincfg()
489  */
490 int snd_hda_add_pincfg(struct hda_codec *codec, struct snd_array *list,
491                        hda_nid_t nid, unsigned int cfg)
492 {
493         struct hda_pincfg *pin;
494 
495         /* the check below may be invalid when pins are added by a fixup
496          * dynamically (e.g. via snd_hda_codec_update_widgets()), so disabled
497          * for now
498          */
499         /*
500         if (get_wcaps_type(get_wcaps(codec, nid)) != AC_WID_PIN)
501                 return -EINVAL;
502         */
503 
504         pin = look_up_pincfg(codec, list, nid);
505         if (!pin) {
506                 pin = snd_array_new(list);
507                 if (!pin)
508                         return -ENOMEM;
509                 pin->nid = nid;
510         }
511         pin->cfg = cfg;
512         return 0;
513 }
514 
515 /**
516  * snd_hda_codec_set_pincfg - Override a pin default configuration
517  * @codec: the HDA codec
518  * @nid: NID to set the pin config
519  * @cfg: the pin default config value
520  *
521  * Override a pin default configuration value in the cache.
522  * This value can be read by snd_hda_codec_get_pincfg() in a higher
523  * priority than the real hardware value.
524  */
525 int snd_hda_codec_set_pincfg(struct hda_codec *codec,
526                              hda_nid_t nid, unsigned int cfg)
527 {
528         return snd_hda_add_pincfg(codec, &codec->driver_pins, nid, cfg);
529 }
530 EXPORT_SYMBOL_GPL(snd_hda_codec_set_pincfg);
531 
532 /**
533  * snd_hda_codec_get_pincfg - Obtain a pin-default configuration
534  * @codec: the HDA codec
535  * @nid: NID to get the pin config
536  *
537  * Get the current pin config value of the given pin NID.
538  * If the pincfg value is cached or overridden via sysfs or driver,
539  * returns the cached value.
540  */
541 unsigned int snd_hda_codec_get_pincfg(struct hda_codec *codec, hda_nid_t nid)
542 {
543         struct hda_pincfg *pin;
544 
545 #ifdef CONFIG_SND_HDA_RECONFIG
546         {
547                 unsigned int cfg = 0;
548                 mutex_lock(&codec->user_mutex);
549                 pin = look_up_pincfg(codec, &codec->user_pins, nid);
550                 if (pin)
551                         cfg = pin->cfg;
552                 mutex_unlock(&codec->user_mutex);
553                 if (cfg)
554                         return cfg;
555         }
556 #endif
557         pin = look_up_pincfg(codec, &codec->driver_pins, nid);
558         if (pin)
559                 return pin->cfg;
560         pin = look_up_pincfg(codec, &codec->init_pins, nid);
561         if (pin)
562                 return pin->cfg;
563         return 0;
564 }
565 EXPORT_SYMBOL_GPL(snd_hda_codec_get_pincfg);
566 
567 /**
568  * snd_hda_codec_set_pin_target - remember the current pinctl target value
569  * @codec: the HDA codec
570  * @nid: pin NID
571  * @val: assigned pinctl value
572  *
573  * This function stores the given value to a pinctl target value in the
574  * pincfg table.  This isn't always as same as the actually written value
575  * but can be referred at any time via snd_hda_codec_get_pin_target().
576  */
577 int snd_hda_codec_set_pin_target(struct hda_codec *codec, hda_nid_t nid,
578                                  unsigned int val)
579 {
580         struct hda_pincfg *pin;
581 
582         pin = look_up_pincfg(codec, &codec->init_pins, nid);
583         if (!pin)
584                 return -EINVAL;
585         pin->target = val;
586         return 0;
587 }
588 EXPORT_SYMBOL_GPL(snd_hda_codec_set_pin_target);
589 
590 /**
591  * snd_hda_codec_get_pin_target - return the current pinctl target value
592  * @codec: the HDA codec
593  * @nid: pin NID
594  */
595 int snd_hda_codec_get_pin_target(struct hda_codec *codec, hda_nid_t nid)
596 {
597         struct hda_pincfg *pin;
598 
599         pin = look_up_pincfg(codec, &codec->init_pins, nid);
600         if (!pin)
601                 return 0;
602         return pin->target;
603 }
604 EXPORT_SYMBOL_GPL(snd_hda_codec_get_pin_target);
605 
606 /**
607  * snd_hda_shutup_pins - Shut up all pins
608  * @codec: the HDA codec
609  *
610  * Clear all pin controls to shup up before suspend for avoiding click noise.
611  * The controls aren't cached so that they can be resumed properly.
612  */
613 void snd_hda_shutup_pins(struct hda_codec *codec)
614 {
615         const struct hda_pincfg *pin;
616         int i;
617 
618         /* don't shut up pins when unloading the driver; otherwise it breaks
619          * the default pin setup at the next load of the driver
620          */
621         if (codec->bus->shutdown)
622                 return;
623         snd_array_for_each(&codec->init_pins, i, pin) {
624                 /* use read here for syncing after issuing each verb */
625                 snd_hda_codec_read(codec, pin->nid, 0,
626                                    AC_VERB_SET_PIN_WIDGET_CONTROL, 0);
627         }
628         codec->pins_shutup = 1;
629 }
630 EXPORT_SYMBOL_GPL(snd_hda_shutup_pins);
631 
632 #ifdef CONFIG_PM
633 /* Restore the pin controls cleared previously via snd_hda_shutup_pins() */
634 static void restore_shutup_pins(struct hda_codec *codec)
635 {
636         const struct hda_pincfg *pin;
637         int i;
638 
639         if (!codec->pins_shutup)
640                 return;
641         if (codec->bus->shutdown)
642                 return;
643         snd_array_for_each(&codec->init_pins, i, pin) {
644                 snd_hda_codec_write(codec, pin->nid, 0,
645                                     AC_VERB_SET_PIN_WIDGET_CONTROL,
646                                     pin->ctrl);
647         }
648         codec->pins_shutup = 0;
649 }
650 #endif
651 
652 static void hda_jackpoll_work(struct work_struct *work)
653 {
654         struct hda_codec *codec =
655                 container_of(work, struct hda_codec, jackpoll_work.work);
656 
657         snd_hda_jack_set_dirty_all(codec);
658         snd_hda_jack_poll_all(codec);
659 
660         if (!codec->jackpoll_interval)
661                 return;
662 
663         schedule_delayed_work(&codec->jackpoll_work,
664                               codec->jackpoll_interval);
665 }
666 
667 /* release all pincfg lists */
668 static void free_init_pincfgs(struct hda_codec *codec)
669 {
670         snd_array_free(&codec->driver_pins);
671 #ifdef CONFIG_SND_HDA_RECONFIG
672         snd_array_free(&codec->user_pins);
673 #endif
674         snd_array_free(&codec->init_pins);
675 }
676 
677 /*
678  * audio-converter setup caches
679  */
680 struct hda_cvt_setup {
681         hda_nid_t nid;
682         u8 stream_tag;
683         u8 channel_id;
684         u16 format_id;
685         unsigned char active;   /* cvt is currently used */
686         unsigned char dirty;    /* setups should be cleared */
687 };
688 
689 /* get or create a cache entry for the given audio converter NID */
690 static struct hda_cvt_setup *
691 get_hda_cvt_setup(struct hda_codec *codec, hda_nid_t nid)
692 {
693         struct hda_cvt_setup *p;
694         int i;
695 
696         snd_array_for_each(&codec->cvt_setups, i, p) {
697                 if (p->nid == nid)
698                         return p;
699         }
700         p = snd_array_new(&codec->cvt_setups);
701         if (p)
702                 p->nid = nid;
703         return p;
704 }
705 
706 /*
707  * PCM device
708  */
709 static void release_pcm(struct kref *kref)
710 {
711         struct hda_pcm *pcm = container_of(kref, struct hda_pcm, kref);
712 
713         if (pcm->pcm)
714                 snd_device_free(pcm->codec->card, pcm->pcm);
715         clear_bit(pcm->device, pcm->codec->bus->pcm_dev_bits);
716         kfree(pcm->name);
717         kfree(pcm);
718 }
719 
720 void snd_hda_codec_pcm_put(struct hda_pcm *pcm)
721 {
722         kref_put(&pcm->kref, release_pcm);
723 }
724 EXPORT_SYMBOL_GPL(snd_hda_codec_pcm_put);
725 
726 struct hda_pcm *snd_hda_codec_pcm_new(struct hda_codec *codec,
727                                       const char *fmt, ...)
728 {
729         struct hda_pcm *pcm;
730         va_list args;
731 
732         pcm = kzalloc(sizeof(*pcm), GFP_KERNEL);
733         if (!pcm)
734                 return NULL;
735 
736         pcm->codec = codec;
737         kref_init(&pcm->kref);
738         va_start(args, fmt);
739         pcm->name = kvasprintf(GFP_KERNEL, fmt, args);
740         va_end(args);
741         if (!pcm->name) {
742                 kfree(pcm);
743                 return NULL;
744         }
745 
746         list_add_tail(&pcm->list, &codec->pcm_list_head);
747         return pcm;
748 }
749 EXPORT_SYMBOL_GPL(snd_hda_codec_pcm_new);
750 
751 /*
752  * codec destructor
753  */
754 static void codec_release_pcms(struct hda_codec *codec)
755 {
756         struct hda_pcm *pcm, *n;
757 
758         list_for_each_entry_safe(pcm, n, &codec->pcm_list_head, list) {
759                 list_del_init(&pcm->list);
760                 if (pcm->pcm)
761                         snd_device_disconnect(codec->card, pcm->pcm);
762                 snd_hda_codec_pcm_put(pcm);
763         }
764 }
765 
766 void snd_hda_codec_cleanup_for_unbind(struct hda_codec *codec)
767 {
768         if (codec->registered) {
769                 /* pm_runtime_put() is called in snd_hdac_device_exit() */
770                 pm_runtime_get_noresume(hda_codec_dev(codec));
771                 pm_runtime_disable(hda_codec_dev(codec));
772                 codec->registered = 0;
773         }
774 
775         cancel_delayed_work_sync(&codec->jackpoll_work);
776         if (!codec->in_freeing)
777                 snd_hda_ctls_clear(codec);
778         codec_release_pcms(codec);
779         snd_hda_detach_beep_device(codec);
780         memset(&codec->patch_ops, 0, sizeof(codec->patch_ops));
781         snd_hda_jack_tbl_clear(codec);
782         codec->proc_widget_hook = NULL;
783         codec->spec = NULL;
784 
785         /* free only driver_pins so that init_pins + user_pins are restored */
786         snd_array_free(&codec->driver_pins);
787         snd_array_free(&codec->cvt_setups);
788         snd_array_free(&codec->spdif_out);
789         snd_array_free(&codec->verbs);
790         codec->preset = NULL;
791         codec->slave_dig_outs = NULL;
792         codec->spdif_status_reset = 0;
793         snd_array_free(&codec->mixers);
794         snd_array_free(&codec->nids);
795         remove_conn_list(codec);
796         snd_hdac_regmap_exit(&codec->core);
797 }
798 
799 static unsigned int hda_set_power_state(struct hda_codec *codec,
800                                 unsigned int power_state);
801 
802 /* also called from hda_bind.c */
803 void snd_hda_codec_register(struct hda_codec *codec)
804 {
805         if (codec->registered)
806                 return;
807         if (device_is_registered(hda_codec_dev(codec))) {
808                 snd_hda_register_beep_device(codec);
809                 snd_hdac_link_power(&codec->core, true);
810                 pm_runtime_enable(hda_codec_dev(codec));
811                 /* it was powered up in snd_hda_codec_new(), now all done */
812                 snd_hda_power_down(codec);
813                 codec->registered = 1;
814         }
815 }
816 
817 static int snd_hda_codec_dev_register(struct snd_device *device)
818 {
819         snd_hda_codec_register(device->device_data);
820         return 0;
821 }
822 
823 static int snd_hda_codec_dev_disconnect(struct snd_device *device)
824 {
825         struct hda_codec *codec = device->device_data;
826 
827         snd_hda_detach_beep_device(codec);
828         return 0;
829 }
830 
831 static int snd_hda_codec_dev_free(struct snd_device *device)
832 {
833         struct hda_codec *codec = device->device_data;
834 
835         codec->in_freeing = 1;
836         snd_hdac_device_unregister(&codec->core);
837         snd_hdac_link_power(&codec->core, false);
838         put_device(hda_codec_dev(codec));
839         return 0;
840 }
841 
842 static void snd_hda_codec_dev_release(struct device *dev)
843 {
844         struct hda_codec *codec = dev_to_hda_codec(dev);
845 
846         free_init_pincfgs(codec);
847         snd_hdac_device_exit(&codec->core);
848         snd_hda_sysfs_clear(codec);
849         kfree(codec->modelname);
850         kfree(codec->wcaps);
851         kfree(codec);
852 }
853 
854 #define DEV_NAME_LEN 31
855 
856 static int snd_hda_codec_device_init(struct hda_bus *bus, struct snd_card *card,
857                         unsigned int codec_addr, struct hda_codec **codecp)
858 {
859         char name[DEV_NAME_LEN];
860         struct hda_codec *codec;
861         int err;
862 
863         dev_dbg(card->dev, "%s: entry\n", __func__);
864 
865         if (snd_BUG_ON(!bus))
866                 return -EINVAL;
867         if (snd_BUG_ON(codec_addr > HDA_MAX_CODEC_ADDRESS))
868                 return -EINVAL;
869 
870         codec = kzalloc(sizeof(*codec), GFP_KERNEL);
871         if (!codec)
872                 return -ENOMEM;
873 
874         sprintf(name, "hdaudioC%dD%d", card->number, codec_addr);
875         err = snd_hdac_device_init(&codec->core, &bus->core, name, codec_addr);
876         if (err < 0) {
877                 kfree(codec);
878                 return err;
879         }
880 
881         codec->core.type = HDA_DEV_LEGACY;
882         *codecp = codec;
883 
884         return err;
885 }
886 
887 /**
888  * snd_hda_codec_new - create a HDA codec
889  * @bus: the bus to assign
890  * @codec_addr: the codec address
891  * @codecp: the pointer to store the generated codec
892  *
893  * Returns 0 if successful, or a negative error code.
894  */
895 int snd_hda_codec_new(struct hda_bus *bus, struct snd_card *card,
896                       unsigned int codec_addr, struct hda_codec **codecp)
897 {
898         int ret;
899 
900         ret = snd_hda_codec_device_init(bus, card, codec_addr, codecp);
901         if (ret < 0)
902                 return ret;
903 
904         return snd_hda_codec_device_new(bus, card, codec_addr, *codecp);
905 }
906 EXPORT_SYMBOL_GPL(snd_hda_codec_new);
907 
908 int snd_hda_codec_device_new(struct hda_bus *bus, struct snd_card *card,
909                         unsigned int codec_addr, struct hda_codec *codec)
910 {
911         char component[31];
912         hda_nid_t fg;
913         int err;
914         static struct snd_device_ops dev_ops = {
915                 .dev_register = snd_hda_codec_dev_register,
916                 .dev_disconnect = snd_hda_codec_dev_disconnect,
917                 .dev_free = snd_hda_codec_dev_free,
918         };
919 
920         dev_dbg(card->dev, "%s: entry\n", __func__);
921 
922         if (snd_BUG_ON(!bus))
923                 return -EINVAL;
924         if (snd_BUG_ON(codec_addr > HDA_MAX_CODEC_ADDRESS))
925                 return -EINVAL;
926 
927         codec->core.dev.release = snd_hda_codec_dev_release;
928         codec->core.exec_verb = codec_exec_verb;
929 
930         codec->bus = bus;
931         codec->card = card;
932         codec->addr = codec_addr;
933         mutex_init(&codec->spdif_mutex);
934         mutex_init(&codec->control_mutex);
935         snd_array_init(&codec->mixers, sizeof(struct hda_nid_item), 32);
936         snd_array_init(&codec->nids, sizeof(struct hda_nid_item), 32);
937         snd_array_init(&codec->init_pins, sizeof(struct hda_pincfg), 16);
938         snd_array_init(&codec->driver_pins, sizeof(struct hda_pincfg), 16);
939         snd_array_init(&codec->cvt_setups, sizeof(struct hda_cvt_setup), 8);
940         snd_array_init(&codec->spdif_out, sizeof(struct hda_spdif_out), 16);
941         snd_array_init(&codec->jacktbl, sizeof(struct hda_jack_tbl), 16);
942         snd_array_init(&codec->verbs, sizeof(struct hda_verb *), 8);
943         INIT_LIST_HEAD(&codec->conn_list);
944         INIT_LIST_HEAD(&codec->pcm_list_head);
945 
946         INIT_DELAYED_WORK(&codec->jackpoll_work, hda_jackpoll_work);
947         codec->depop_delay = -1;
948         codec->fixup_id = HDA_FIXUP_ID_NOT_SET;
949 
950 #ifdef CONFIG_PM
951         codec->power_jiffies = jiffies;
952 #endif
953 
954         snd_hda_sysfs_init(codec);
955 
956         if (codec->bus->modelname) {
957                 codec->modelname = kstrdup(codec->bus->modelname, GFP_KERNEL);
958                 if (!codec->modelname) {
959                         err = -ENOMEM;
960                         goto error;
961                 }
962         }
963 
964         fg = codec->core.afg ? codec->core.afg : codec->core.mfg;
965         err = read_widget_caps(codec, fg);
966         if (err < 0)
967                 goto error;
968         err = read_pin_defaults(codec);
969         if (err < 0)
970                 goto error;
971 
972         /* power-up all before initialization */
973         hda_set_power_state(codec, AC_PWRST_D0);
974 
975         snd_hda_codec_proc_new(codec);
976 
977         snd_hda_create_hwdep(codec);
978 
979         sprintf(component, "HDA:%08x,%08x,%08x", codec->core.vendor_id,
980                 codec->core.subsystem_id, codec->core.revision_id);
981         snd_component_add(card, component);
982 
983         err = snd_device_new(card, SNDRV_DEV_CODEC, codec, &dev_ops);
984         if (err < 0)
985                 goto error;
986 
987         return 0;
988 
989  error:
990         put_device(hda_codec_dev(codec));
991         return err;
992 }
993 EXPORT_SYMBOL_GPL(snd_hda_codec_device_new);
994 
995 /**
996  * snd_hda_codec_update_widgets - Refresh widget caps and pin defaults
997  * @codec: the HDA codec
998  *
999  * Forcibly refresh the all widget caps and the init pin configurations of
1000  * the given codec.
1001  */
1002 int snd_hda_codec_update_widgets(struct hda_codec *codec)
1003 {
1004         hda_nid_t fg;
1005         int err;
1006 
1007         err = snd_hdac_refresh_widgets(&codec->core, true);
1008         if (err < 0)
1009                 return err;
1010 
1011         /* Assume the function group node does not change,
1012          * only the widget nodes may change.
1013          */
1014         kfree(codec->wcaps);
1015         fg = codec->core.afg ? codec->core.afg : codec->core.mfg;
1016         err = read_widget_caps(codec, fg);
1017         if (err < 0)
1018                 return err;
1019 
1020         snd_array_free(&codec->init_pins);
1021         err = read_pin_defaults(codec);
1022 
1023         return err;
1024 }
1025 EXPORT_SYMBOL_GPL(snd_hda_codec_update_widgets);
1026 
1027 /* update the stream-id if changed */
1028 static void update_pcm_stream_id(struct hda_codec *codec,
1029                                  struct hda_cvt_setup *p, hda_nid_t nid,
1030                                  u32 stream_tag, int channel_id)
1031 {
1032         unsigned int oldval, newval;
1033 
1034         if (p->stream_tag != stream_tag || p->channel_id != channel_id) {
1035                 oldval = snd_hda_codec_read(codec, nid, 0, AC_VERB_GET_CONV, 0);
1036                 newval = (stream_tag << 4) | channel_id;
1037                 if (oldval != newval)
1038                         snd_hda_codec_write(codec, nid, 0,
1039                                             AC_VERB_SET_CHANNEL_STREAMID,
1040                                             newval);
1041                 p->stream_tag = stream_tag;
1042                 p->channel_id = channel_id;
1043         }
1044 }
1045 
1046 /* update the format-id if changed */
1047 static void update_pcm_format(struct hda_codec *codec, struct hda_cvt_setup *p,
1048                               hda_nid_t nid, int format)
1049 {
1050         unsigned int oldval;
1051 
1052         if (p->format_id != format) {
1053                 oldval = snd_hda_codec_read(codec, nid, 0,
1054                                             AC_VERB_GET_STREAM_FORMAT, 0);
1055                 if (oldval != format) {
1056                         msleep(1);
1057                         snd_hda_codec_write(codec, nid, 0,
1058                                             AC_VERB_SET_STREAM_FORMAT,
1059                                             format);
1060                 }
1061                 p->format_id = format;
1062         }
1063 }
1064 
1065 /**
1066  * snd_hda_codec_setup_stream - set up the codec for streaming
1067  * @codec: the CODEC to set up
1068  * @nid: the NID to set up
1069  * @stream_tag: stream tag to pass, it's between 0x1 and 0xf.
1070  * @channel_id: channel id to pass, zero based.
1071  * @format: stream format.
1072  */
1073 void snd_hda_codec_setup_stream(struct hda_codec *codec, hda_nid_t nid,
1074                                 u32 stream_tag,
1075                                 int channel_id, int format)
1076 {
1077         struct hda_codec *c;
1078         struct hda_cvt_setup *p;
1079         int type;
1080         int i;
1081 
1082         if (!nid)
1083                 return;
1084 
1085         codec_dbg(codec,
1086                   "hda_codec_setup_stream: NID=0x%x, stream=0x%x, channel=%d, format=0x%x\n",
1087                   nid, stream_tag, channel_id, format);
1088         p = get_hda_cvt_setup(codec, nid);
1089         if (!p)
1090                 return;
1091 
1092         if (codec->patch_ops.stream_pm)
1093                 codec->patch_ops.stream_pm(codec, nid, true);
1094         if (codec->pcm_format_first)
1095                 update_pcm_format(codec, p, nid, format);
1096         update_pcm_stream_id(codec, p, nid, stream_tag, channel_id);
1097         if (!codec->pcm_format_first)
1098                 update_pcm_format(codec, p, nid, format);
1099 
1100         p->active = 1;
1101         p->dirty = 0;
1102 
1103         /* make other inactive cvts with the same stream-tag dirty */
1104         type = get_wcaps_type(get_wcaps(codec, nid));
1105         list_for_each_codec(c, codec->bus) {
1106                 snd_array_for_each(&c->cvt_setups, i, p) {
1107                         if (!p->active && p->stream_tag == stream_tag &&
1108                             get_wcaps_type(get_wcaps(c, p->nid)) == type)
1109                                 p->dirty = 1;
1110                 }
1111         }
1112 }
1113 EXPORT_SYMBOL_GPL(snd_hda_codec_setup_stream);
1114 
1115 static void really_cleanup_stream(struct hda_codec *codec,
1116                                   struct hda_cvt_setup *q);
1117 
1118 /**
1119  * __snd_hda_codec_cleanup_stream - clean up the codec for closing
1120  * @codec: the CODEC to clean up
1121  * @nid: the NID to clean up
1122  * @do_now: really clean up the stream instead of clearing the active flag
1123  */
1124 void __snd_hda_codec_cleanup_stream(struct hda_codec *codec, hda_nid_t nid,
1125                                     int do_now)
1126 {
1127         struct hda_cvt_setup *p;
1128 
1129         if (!nid)
1130                 return;
1131 
1132         if (codec->no_sticky_stream)
1133                 do_now = 1;
1134 
1135         codec_dbg(codec, "hda_codec_cleanup_stream: NID=0x%x\n", nid);
1136         p = get_hda_cvt_setup(codec, nid);
1137         if (p) {
1138                 /* here we just clear the active flag when do_now isn't set;
1139                  * actual clean-ups will be done later in
1140                  * purify_inactive_streams() called from snd_hda_codec_prpapre()
1141                  */
1142                 if (do_now)
1143                         really_cleanup_stream(codec, p);
1144                 else
1145                         p->active = 0;
1146         }
1147 }
1148 EXPORT_SYMBOL_GPL(__snd_hda_codec_cleanup_stream);
1149 
1150 static void really_cleanup_stream(struct hda_codec *codec,
1151                                   struct hda_cvt_setup *q)
1152 {
1153         hda_nid_t nid = q->nid;
1154         if (q->stream_tag || q->channel_id)
1155                 snd_hda_codec_write(codec, nid, 0, AC_VERB_SET_CHANNEL_STREAMID, 0);
1156         if (q->format_id)
1157                 snd_hda_codec_write(codec, nid, 0, AC_VERB_SET_STREAM_FORMAT, 0
1158 );
1159         memset(q, 0, sizeof(*q));
1160         q->nid = nid;
1161         if (codec->patch_ops.stream_pm)
1162                 codec->patch_ops.stream_pm(codec, nid, false);
1163 }
1164 
1165 /* clean up the all conflicting obsolete streams */
1166 static void purify_inactive_streams(struct hda_codec *codec)
1167 {
1168         struct hda_codec *c;
1169         struct hda_cvt_setup *p;
1170         int i;
1171 
1172         list_for_each_codec(c, codec->bus) {
1173                 snd_array_for_each(&c->cvt_setups, i, p) {
1174                         if (p->dirty)
1175                                 really_cleanup_stream(c, p);
1176                 }
1177         }
1178 }
1179 
1180 #ifdef CONFIG_PM
1181 /* clean up all streams; called from suspend */
1182 static void hda_cleanup_all_streams(struct hda_codec *codec)
1183 {
1184         struct hda_cvt_setup *p;
1185         int i;
1186 
1187         snd_array_for_each(&codec->cvt_setups, i, p) {
1188                 if (p->stream_tag)
1189                         really_cleanup_stream(codec, p);
1190         }
1191 }
1192 #endif
1193 
1194 /*
1195  * amp access functions
1196  */
1197 
1198 /**
1199  * query_amp_caps - query AMP capabilities
1200  * @codec: the HD-auio codec
1201  * @nid: the NID to query
1202  * @direction: either #HDA_INPUT or #HDA_OUTPUT
1203  *
1204  * Query AMP capabilities for the given widget and direction.
1205  * Returns the obtained capability bits.
1206  *
1207  * When cap bits have been already read, this doesn't read again but
1208  * returns the cached value.
1209  */
1210 u32 query_amp_caps(struct hda_codec *codec, hda_nid_t nid, int direction)
1211 {
1212         if (!(get_wcaps(codec, nid) & AC_WCAP_AMP_OVRD))
1213                 nid = codec->core.afg;
1214         return snd_hda_param_read(codec, nid,
1215                                   direction == HDA_OUTPUT ?
1216                                   AC_PAR_AMP_OUT_CAP : AC_PAR_AMP_IN_CAP);
1217 }
1218 EXPORT_SYMBOL_GPL(query_amp_caps);
1219 
1220 /**
1221  * snd_hda_check_amp_caps - query AMP capabilities
1222  * @codec: the HD-audio codec
1223  * @nid: the NID to query
1224  * @dir: either #HDA_INPUT or #HDA_OUTPUT
1225  * @bits: bit mask to check the result
1226  *
1227  * Check whether the widget has the given amp capability for the direction.
1228  */
1229 bool snd_hda_check_amp_caps(struct hda_codec *codec, hda_nid_t nid,
1230                            int dir, unsigned int bits)
1231 {
1232         if (!nid)
1233                 return false;
1234         if (get_wcaps(codec, nid) & (1 << (dir + 1)))
1235                 if (query_amp_caps(codec, nid, dir) & bits)
1236                         return true;
1237         return false;
1238 }
1239 EXPORT_SYMBOL_GPL(snd_hda_check_amp_caps);
1240 
1241 /**
1242  * snd_hda_override_amp_caps - Override the AMP capabilities
1243  * @codec: the CODEC to clean up
1244  * @nid: the NID to clean up
1245  * @dir: either #HDA_INPUT or #HDA_OUTPUT
1246  * @caps: the capability bits to set
1247  *
1248  * Override the cached AMP caps bits value by the given one.
1249  * This function is useful if the driver needs to adjust the AMP ranges,
1250  * e.g. limit to 0dB, etc.
1251  *
1252  * Returns zero if successful or a negative error code.
1253  */
1254 int snd_hda_override_amp_caps(struct hda_codec *codec, hda_nid_t nid, int dir,
1255                               unsigned int caps)
1256 {
1257         unsigned int parm;
1258 
1259         snd_hda_override_wcaps(codec, nid,
1260                                get_wcaps(codec, nid) | AC_WCAP_AMP_OVRD);
1261         parm = dir == HDA_OUTPUT ? AC_PAR_AMP_OUT_CAP : AC_PAR_AMP_IN_CAP;
1262         return snd_hdac_override_parm(&codec->core, nid, parm, caps);
1263 }
1264 EXPORT_SYMBOL_GPL(snd_hda_override_amp_caps);
1265 
1266 /**
1267  * snd_hda_codec_amp_update - update the AMP mono value
1268  * @codec: HD-audio codec
1269  * @nid: NID to read the AMP value
1270  * @ch: channel to update (0 or 1)
1271  * @dir: #HDA_INPUT or #HDA_OUTPUT
1272  * @idx: the index value (only for input direction)
1273  * @mask: bit mask to set
1274  * @val: the bits value to set
1275  *
1276  * Update the AMP values for the given channel, direction and index.
1277  */
1278 int snd_hda_codec_amp_update(struct hda_codec *codec, hda_nid_t nid,
1279                              int ch, int dir, int idx, int mask, int val)
1280 {
1281         unsigned int cmd = snd_hdac_regmap_encode_amp(nid, ch, dir, idx);
1282 
1283         /* enable fake mute if no h/w mute but min=mute */
1284         if ((query_amp_caps(codec, nid, dir) &
1285              (AC_AMPCAP_MUTE | AC_AMPCAP_MIN_MUTE)) == AC_AMPCAP_MIN_MUTE)
1286                 cmd |= AC_AMP_FAKE_MUTE;
1287         return snd_hdac_regmap_update_raw(&codec->core, cmd, mask, val);
1288 }
1289 EXPORT_SYMBOL_GPL(snd_hda_codec_amp_update);
1290 
1291 /**
1292  * snd_hda_codec_amp_stereo - update the AMP stereo values
1293  * @codec: HD-audio codec
1294  * @nid: NID to read the AMP value
1295  * @direction: #HDA_INPUT or #HDA_OUTPUT
1296  * @idx: the index value (only for input direction)
1297  * @mask: bit mask to set
1298  * @val: the bits value to set
1299  *
1300  * Update the AMP values like snd_hda_codec_amp_update(), but for a
1301  * stereo widget with the same mask and value.
1302  */
1303 int snd_hda_codec_amp_stereo(struct hda_codec *codec, hda_nid_t nid,
1304                              int direction, int idx, int mask, int val)
1305 {
1306         int ch, ret = 0;
1307 
1308         if (snd_BUG_ON(mask & ~0xff))
1309                 mask &= 0xff;
1310         for (ch = 0; ch < 2; ch++)
1311                 ret |= snd_hda_codec_amp_update(codec, nid, ch, direction,
1312                                                 idx, mask, val);
1313         return ret;
1314 }
1315 EXPORT_SYMBOL_GPL(snd_hda_codec_amp_stereo);
1316 
1317 /**
1318  * snd_hda_codec_amp_init - initialize the AMP value
1319  * @codec: the HDA codec
1320  * @nid: NID to read the AMP value
1321  * @ch: channel (left=0 or right=1)
1322  * @dir: #HDA_INPUT or #HDA_OUTPUT
1323  * @idx: the index value (only for input direction)
1324  * @mask: bit mask to set
1325  * @val: the bits value to set
1326  *
1327  * Works like snd_hda_codec_amp_update() but it writes the value only at
1328  * the first access.  If the amp was already initialized / updated beforehand,
1329  * this does nothing.
1330  */
1331 int snd_hda_codec_amp_init(struct hda_codec *codec, hda_nid_t nid, int ch,
1332                            int dir, int idx, int mask, int val)
1333 {
1334         int orig;
1335 
1336         if (!codec->core.regmap)
1337                 return -EINVAL;
1338         regcache_cache_only(codec->core.regmap, true);
1339         orig = snd_hda_codec_amp_read(codec, nid, ch, dir, idx);
1340         regcache_cache_only(codec->core.regmap, false);
1341         if (orig >= 0)
1342                 return 0;
1343         return snd_hda_codec_amp_update(codec, nid, ch, dir, idx, mask, val);
1344 }
1345 EXPORT_SYMBOL_GPL(snd_hda_codec_amp_init);
1346 
1347 /**
1348  * snd_hda_codec_amp_init_stereo - initialize the stereo AMP value
1349  * @codec: the HDA codec
1350  * @nid: NID to read the AMP value
1351  * @dir: #HDA_INPUT or #HDA_OUTPUT
1352  * @idx: the index value (only for input direction)
1353  * @mask: bit mask to set
1354  * @val: the bits value to set
1355  *
1356  * Call snd_hda_codec_amp_init() for both stereo channels.
1357  */
1358 int snd_hda_codec_amp_init_stereo(struct hda_codec *codec, hda_nid_t nid,
1359                                   int dir, int idx, int mask, int val)
1360 {
1361         int ch, ret = 0;
1362 
1363         if (snd_BUG_ON(mask & ~0xff))
1364                 mask &= 0xff;
1365         for (ch = 0; ch < 2; ch++)
1366                 ret |= snd_hda_codec_amp_init(codec, nid, ch, dir,
1367                                               idx, mask, val);
1368         return ret;
1369 }
1370 EXPORT_SYMBOL_GPL(snd_hda_codec_amp_init_stereo);
1371 
1372 static u32 get_amp_max_value(struct hda_codec *codec, hda_nid_t nid, int dir,
1373                              unsigned int ofs)
1374 {
1375         u32 caps = query_amp_caps(codec, nid, dir);
1376         /* get num steps */
1377         caps = (caps & AC_AMPCAP_NUM_STEPS) >> AC_AMPCAP_NUM_STEPS_SHIFT;
1378         if (ofs < caps)
1379                 caps -= ofs;
1380         return caps;
1381 }
1382 
1383 /**
1384  * snd_hda_mixer_amp_volume_info - Info callback for a standard AMP mixer
1385  * @kcontrol: referred ctl element
1386  * @uinfo: pointer to get/store the data
1387  *
1388  * The control element is supposed to have the private_value field
1389  * set up via HDA_COMPOSE_AMP_VAL*() or related macros.
1390  */
1391 int snd_hda_mixer_amp_volume_info(struct snd_kcontrol *kcontrol,
1392                                   struct snd_ctl_elem_info *uinfo)
1393 {
1394         struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
1395         u16 nid = get_amp_nid(kcontrol);
1396         u8 chs = get_amp_channels(kcontrol);
1397         int dir = get_amp_direction(kcontrol);
1398         unsigned int ofs = get_amp_offset(kcontrol);
1399 
1400         uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
1401         uinfo->count = chs == 3 ? 2 : 1;
1402         uinfo->value.integer.min = 0;
1403         uinfo->value.integer.max = get_amp_max_value(codec, nid, dir, ofs);
1404         if (!uinfo->value.integer.max) {
1405                 codec_warn(codec,
1406                            "num_steps = 0 for NID=0x%x (ctl = %s)\n",
1407                            nid, kcontrol->id.name);
1408                 return -EINVAL;
1409         }
1410         return 0;
1411 }
1412 EXPORT_SYMBOL_GPL(snd_hda_mixer_amp_volume_info);
1413 
1414 
1415 static inline unsigned int
1416 read_amp_value(struct hda_codec *codec, hda_nid_t nid,
1417                int ch, int dir, int idx, unsigned int ofs)
1418 {
1419         unsigned int val;
1420         val = snd_hda_codec_amp_read(codec, nid, ch, dir, idx);
1421         val &= HDA_AMP_VOLMASK;
1422         if (val >= ofs)
1423                 val -= ofs;
1424         else
1425                 val = 0;
1426         return val;
1427 }
1428 
1429 static inline int
1430 update_amp_value(struct hda_codec *codec, hda_nid_t nid,
1431                  int ch, int dir, int idx, unsigned int ofs,
1432                  unsigned int val)
1433 {
1434         unsigned int maxval;
1435 
1436         if (val > 0)
1437                 val += ofs;
1438         /* ofs = 0: raw max value */
1439         maxval = get_amp_max_value(codec, nid, dir, 0);
1440         if (val > maxval)
1441                 val = maxval;
1442         return snd_hda_codec_amp_update(codec, nid, ch, dir, idx,
1443                                         HDA_AMP_VOLMASK, val);
1444 }
1445 
1446 /**
1447  * snd_hda_mixer_amp_volume_get - Get callback for a standard AMP mixer volume
1448  * @kcontrol: ctl element
1449  * @ucontrol: pointer to get/store the data
1450  *
1451  * The control element is supposed to have the private_value field
1452  * set up via HDA_COMPOSE_AMP_VAL*() or related macros.
1453  */
1454 int snd_hda_mixer_amp_volume_get(struct snd_kcontrol *kcontrol,
1455                                  struct snd_ctl_elem_value *ucontrol)
1456 {
1457         struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
1458         hda_nid_t nid = get_amp_nid(kcontrol);
1459         int chs = get_amp_channels(kcontrol);
1460         int dir = get_amp_direction(kcontrol);
1461         int idx = get_amp_index(kcontrol);
1462         unsigned int ofs = get_amp_offset(kcontrol);
1463         long *valp = ucontrol->value.integer.value;
1464 
1465         if (chs & 1)
1466                 *valp++ = read_amp_value(codec, nid, 0, dir, idx, ofs);
1467         if (chs & 2)
1468                 *valp = read_amp_value(codec, nid, 1, dir, idx, ofs);
1469         return 0;
1470 }
1471 EXPORT_SYMBOL_GPL(snd_hda_mixer_amp_volume_get);
1472 
1473 /**
1474  * snd_hda_mixer_amp_volume_put - Put callback for a standard AMP mixer volume
1475  * @kcontrol: ctl element
1476  * @ucontrol: pointer to get/store the data
1477  *
1478  * The control element is supposed to have the private_value field
1479  * set up via HDA_COMPOSE_AMP_VAL*() or related macros.
1480  */
1481 int snd_hda_mixer_amp_volume_put(struct snd_kcontrol *kcontrol,
1482                                  struct snd_ctl_elem_value *ucontrol)
1483 {
1484         struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
1485         hda_nid_t nid = get_amp_nid(kcontrol);
1486         int chs = get_amp_channels(kcontrol);
1487         int dir = get_amp_direction(kcontrol);
1488         int idx = get_amp_index(kcontrol);
1489         unsigned int ofs = get_amp_offset(kcontrol);
1490         long *valp = ucontrol->value.integer.value;
1491         int change = 0;
1492 
1493         if (chs & 1) {
1494                 change = update_amp_value(codec, nid, 0, dir, idx, ofs, *valp);
1495                 valp++;
1496         }
1497         if (chs & 2)
1498                 change |= update_amp_value(codec, nid, 1, dir, idx, ofs, *valp);
1499         return change;
1500 }
1501 EXPORT_SYMBOL_GPL(snd_hda_mixer_amp_volume_put);
1502 
1503 /* inquiry the amp caps and convert to TLV */
1504 static void get_ctl_amp_tlv(struct snd_kcontrol *kcontrol, unsigned int *tlv)
1505 {
1506         struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
1507         hda_nid_t nid = get_amp_nid(kcontrol);
1508         int dir = get_amp_direction(kcontrol);
1509         unsigned int ofs = get_amp_offset(kcontrol);
1510         bool min_mute = get_amp_min_mute(kcontrol);
1511         u32 caps, val1, val2;
1512 
1513         caps = query_amp_caps(codec, nid, dir);
1514         val2 = (caps & AC_AMPCAP_STEP_SIZE) >> AC_AMPCAP_STEP_SIZE_SHIFT;
1515         val2 = (val2 + 1) * 25;
1516         val1 = -((caps & AC_AMPCAP_OFFSET) >> AC_AMPCAP_OFFSET_SHIFT);
1517         val1 += ofs;
1518         val1 = ((int)val1) * ((int)val2);
1519         if (min_mute || (caps & AC_AMPCAP_MIN_MUTE))
1520                 val2 |= TLV_DB_SCALE_MUTE;
1521         tlv[SNDRV_CTL_TLVO_TYPE] = SNDRV_CTL_TLVT_DB_SCALE;
1522         tlv[SNDRV_CTL_TLVO_LEN] = 2 * sizeof(unsigned int);
1523         tlv[SNDRV_CTL_TLVO_DB_SCALE_MIN] = val1;
1524         tlv[SNDRV_CTL_TLVO_DB_SCALE_MUTE_AND_STEP] = val2;
1525 }
1526 
1527 /**
1528  * snd_hda_mixer_amp_tlv - TLV callback for a standard AMP mixer volume
1529  * @kcontrol: ctl element
1530  * @op_flag: operation flag
1531  * @size: byte size of input TLV
1532  * @_tlv: TLV data
1533  *
1534  * The control element is supposed to have the private_value field
1535  * set up via HDA_COMPOSE_AMP_VAL*() or related macros.
1536  */
1537 int snd_hda_mixer_amp_tlv(struct snd_kcontrol *kcontrol, int op_flag,
1538                           unsigned int size, unsigned int __user *_tlv)
1539 {
1540         unsigned int tlv[4];
1541 
1542         if (size < 4 * sizeof(unsigned int))
1543                 return -ENOMEM;
1544         get_ctl_amp_tlv(kcontrol, tlv);
1545         if (copy_to_user(_tlv, tlv, sizeof(tlv)))
1546                 return -EFAULT;
1547         return 0;
1548 }
1549 EXPORT_SYMBOL_GPL(snd_hda_mixer_amp_tlv);
1550 
1551 /**
1552  * snd_hda_set_vmaster_tlv - Set TLV for a virtual master control
1553  * @codec: HD-audio codec
1554  * @nid: NID of a reference widget
1555  * @dir: #HDA_INPUT or #HDA_OUTPUT
1556  * @tlv: TLV data to be stored, at least 4 elements
1557  *
1558  * Set (static) TLV data for a virtual master volume using the AMP caps
1559  * obtained from the reference NID.
1560  * The volume range is recalculated as if the max volume is 0dB.
1561  */
1562 void snd_hda_set_vmaster_tlv(struct hda_codec *codec, hda_nid_t nid, int dir,
1563                              unsigned int *tlv)
1564 {
1565         u32 caps;
1566         int nums, step;
1567 
1568         caps = query_amp_caps(codec, nid, dir);
1569         nums = (caps & AC_AMPCAP_NUM_STEPS) >> AC_AMPCAP_NUM_STEPS_SHIFT;
1570         step = (caps & AC_AMPCAP_STEP_SIZE) >> AC_AMPCAP_STEP_SIZE_SHIFT;
1571         step = (step + 1) * 25;
1572         tlv[SNDRV_CTL_TLVO_TYPE] = SNDRV_CTL_TLVT_DB_SCALE;
1573         tlv[SNDRV_CTL_TLVO_LEN] = 2 * sizeof(unsigned int);
1574         tlv[SNDRV_CTL_TLVO_DB_SCALE_MIN] = -nums * step;
1575         tlv[SNDRV_CTL_TLVO_DB_SCALE_MUTE_AND_STEP] = step;
1576 }
1577 EXPORT_SYMBOL_GPL(snd_hda_set_vmaster_tlv);
1578 
1579 /* find a mixer control element with the given name */
1580 static struct snd_kcontrol *
1581 find_mixer_ctl(struct hda_codec *codec, const char *name, int dev, int idx)
1582 {
1583         struct snd_ctl_elem_id id;
1584         memset(&id, 0, sizeof(id));
1585         id.iface = SNDRV_CTL_ELEM_IFACE_MIXER;
1586         id.device = dev;
1587         id.index = idx;
1588         if (snd_BUG_ON(strlen(name) >= sizeof(id.name)))
1589                 return NULL;
1590         strcpy(id.name, name);
1591         return snd_ctl_find_id(codec->card, &id);
1592 }
1593 
1594 /**
1595  * snd_hda_find_mixer_ctl - Find a mixer control element with the given name
1596  * @codec: HD-audio codec
1597  * @name: ctl id name string
1598  *
1599  * Get the control element with the given id string and IFACE_MIXER.
1600  */
1601 struct snd_kcontrol *snd_hda_find_mixer_ctl(struct hda_codec *codec,
1602                                             const char *name)
1603 {
1604         return find_mixer_ctl(codec, name, 0, 0);
1605 }
1606 EXPORT_SYMBOL_GPL(snd_hda_find_mixer_ctl);
1607 
1608 static int find_empty_mixer_ctl_idx(struct hda_codec *codec, const char *name,
1609                                     int start_idx)
1610 {
1611         int i, idx;
1612         /* 16 ctlrs should be large enough */
1613         for (i = 0, idx = start_idx; i < 16; i++, idx++) {
1614                 if (!find_mixer_ctl(codec, name, 0, idx))
1615                         return idx;
1616         }
1617         return -EBUSY;
1618 }
1619 
1620 /**
1621  * snd_hda_ctl_add - Add a control element and assign to the codec
1622  * @codec: HD-audio codec
1623  * @nid: corresponding NID (optional)
1624  * @kctl: the control element to assign
1625  *
1626  * Add the given control element to an array inside the codec instance.
1627  * All control elements belonging to a codec are supposed to be added
1628  * by this function so that a proper clean-up works at the free or
1629  * reconfiguration time.
1630  *
1631  * If non-zero @nid is passed, the NID is assigned to the control element.
1632  * The assignment is shown in the codec proc file.
1633  *
1634  * snd_hda_ctl_add() checks the control subdev id field whether
1635  * #HDA_SUBDEV_NID_FLAG bit is set.  If set (and @nid is zero), the lower
1636  * bits value is taken as the NID to assign. The #HDA_NID_ITEM_AMP bit
1637  * specifies if kctl->private_value is a HDA amplifier value.
1638  */
1639 int snd_hda_ctl_add(struct hda_codec *codec, hda_nid_t nid,
1640                     struct snd_kcontrol *kctl)
1641 {
1642         int err;
1643         unsigned short flags = 0;
1644         struct hda_nid_item *item;
1645 
1646         if (kctl->id.subdevice & HDA_SUBDEV_AMP_FLAG) {
1647                 flags |= HDA_NID_ITEM_AMP;
1648                 if (nid == 0)
1649                         nid = get_amp_nid_(kctl->private_value);
1650         }
1651         if ((kctl->id.subdevice & HDA_SUBDEV_NID_FLAG) != 0 && nid == 0)
1652                 nid = kctl->id.subdevice & 0xffff;
1653         if (kctl->id.subdevice & (HDA_SUBDEV_NID_FLAG|HDA_SUBDEV_AMP_FLAG))
1654                 kctl->id.subdevice = 0;
1655         err = snd_ctl_add(codec->card, kctl);
1656         if (err < 0)
1657                 return err;
1658         item = snd_array_new(&codec->mixers);
1659         if (!item)
1660                 return -ENOMEM;
1661         item->kctl = kctl;
1662         item->nid = nid;
1663         item->flags = flags;
1664         return 0;
1665 }
1666 EXPORT_SYMBOL_GPL(snd_hda_ctl_add);
1667 
1668 /**
1669  * snd_hda_add_nid - Assign a NID to a control element
1670  * @codec: HD-audio codec
1671  * @nid: corresponding NID (optional)
1672  * @kctl: the control element to assign
1673  * @index: index to kctl
1674  *
1675  * Add the given control element to an array inside the codec instance.
1676  * This function is used when #snd_hda_ctl_add cannot be used for 1:1
1677  * NID:KCTL mapping - for example "Capture Source" selector.
1678  */
1679 int snd_hda_add_nid(struct hda_codec *codec, struct snd_kcontrol *kctl,
1680                     unsigned int index, hda_nid_t nid)
1681 {
1682         struct hda_nid_item *item;
1683 
1684         if (nid > 0) {
1685                 item = snd_array_new(&codec->nids);
1686                 if (!item)
1687                         return -ENOMEM;
1688                 item->kctl = kctl;
1689                 item->index = index;
1690                 item->nid = nid;
1691                 return 0;
1692         }
1693         codec_err(codec, "no NID for mapping control %s:%d:%d\n",
1694                   kctl->id.name, kctl->id.index, index);
1695         return -EINVAL;
1696 }
1697 EXPORT_SYMBOL_GPL(snd_hda_add_nid);
1698 
1699 /**
1700  * snd_hda_ctls_clear - Clear all controls assigned to the given codec
1701  * @codec: HD-audio codec
1702  */
1703 void snd_hda_ctls_clear(struct hda_codec *codec)
1704 {
1705         int i;
1706         struct hda_nid_item *items = codec->mixers.list;
1707         for (i = 0; i < codec->mixers.used; i++)
1708                 snd_ctl_remove(codec->card, items[i].kctl);
1709         snd_array_free(&codec->mixers);
1710         snd_array_free(&codec->nids);
1711 }
1712 
1713 /**
1714  * snd_hda_lock_devices - pseudo device locking
1715  * @bus: the BUS
1716  *
1717  * toggle card->shutdown to allow/disallow the device access (as a hack)
1718  */
1719 int snd_hda_lock_devices(struct hda_bus *bus)
1720 {
1721         struct snd_card *card = bus->card;
1722         struct hda_codec *codec;
1723 
1724         spin_lock(&card->files_lock);
1725         if (card->shutdown)
1726                 goto err_unlock;
1727         card->shutdown = 1;
1728         if (!list_empty(&card->ctl_files))
1729                 goto err_clear;
1730 
1731         list_for_each_codec(codec, bus) {
1732                 struct hda_pcm *cpcm;
1733                 list_for_each_entry(cpcm, &codec->pcm_list_head, list) {
1734                         if (!cpcm->pcm)
1735                                 continue;
1736                         if (cpcm->pcm->streams[0].substream_opened ||
1737                             cpcm->pcm->streams[1].substream_opened)
1738                                 goto err_clear;
1739                 }
1740         }
1741         spin_unlock(&card->files_lock);
1742         return 0;
1743 
1744  err_clear:
1745         card->shutdown = 0;
1746  err_unlock:
1747         spin_unlock(&card->files_lock);
1748         return -EINVAL;
1749 }
1750 EXPORT_SYMBOL_GPL(snd_hda_lock_devices);
1751 
1752 /**
1753  * snd_hda_unlock_devices - pseudo device unlocking
1754  * @bus: the BUS
1755  */
1756 void snd_hda_unlock_devices(struct hda_bus *bus)
1757 {
1758         struct snd_card *card = bus->card;
1759 
1760         spin_lock(&card->files_lock);
1761         card->shutdown = 0;
1762         spin_unlock(&card->files_lock);
1763 }
1764 EXPORT_SYMBOL_GPL(snd_hda_unlock_devices);
1765 
1766 /**
1767  * snd_hda_codec_reset - Clear all objects assigned to the codec
1768  * @codec: HD-audio codec
1769  *
1770  * This frees the all PCM and control elements assigned to the codec, and
1771  * clears the caches and restores the pin default configurations.
1772  *
1773  * When a device is being used, it returns -EBSY.  If successfully freed,
1774  * returns zero.
1775  */
1776 int snd_hda_codec_reset(struct hda_codec *codec)
1777 {
1778         struct hda_bus *bus = codec->bus;
1779 
1780         if (snd_hda_lock_devices(bus) < 0)
1781                 return -EBUSY;
1782 
1783         /* OK, let it free */
1784         snd_hdac_device_unregister(&codec->core);
1785 
1786         /* allow device access again */
1787         snd_hda_unlock_devices(bus);
1788         return 0;
1789 }
1790 
1791 typedef int (*map_slave_func_t)(struct hda_codec *, void *, struct snd_kcontrol *);
1792 
1793 /* apply the function to all matching slave ctls in the mixer list */
1794 static int map_slaves(struct hda_codec *codec, const char * const *slaves,
1795                       const char *suffix, map_slave_func_t func, void *data) 
1796 {
1797         struct hda_nid_item *items;
1798         const char * const *s;
1799         int i, err;
1800 
1801         items = codec->mixers.list;
1802         for (i = 0; i < codec->mixers.used; i++) {
1803                 struct snd_kcontrol *sctl = items[i].kctl;
1804                 if (!sctl || sctl->id.iface != SNDRV_CTL_ELEM_IFACE_MIXER)
1805                         continue;
1806                 for (s = slaves; *s; s++) {
1807                         char tmpname[sizeof(sctl->id.name)];
1808                         const char *name = *s;
1809                         if (suffix) {
1810                                 snprintf(tmpname, sizeof(tmpname), "%s %s",
1811                                          name, suffix);
1812                                 name = tmpname;
1813                         }
1814                         if (!strcmp(sctl->id.name, name)) {
1815                                 err = func(codec, data, sctl);
1816                                 if (err)
1817                                         return err;
1818                                 break;
1819                         }
1820                 }
1821         }
1822         return 0;
1823 }
1824 
1825 static int check_slave_present(struct hda_codec *codec,
1826                                void *data, struct snd_kcontrol *sctl)
1827 {
1828         return 1;
1829 }
1830 
1831 /* call kctl->put with the given value(s) */
1832 static int put_kctl_with_value(struct snd_kcontrol *kctl, int val)
1833 {
1834         struct snd_ctl_elem_value *ucontrol;
1835         ucontrol = kzalloc(sizeof(*ucontrol), GFP_KERNEL);
1836         if (!ucontrol)
1837                 return -ENOMEM;
1838         ucontrol->value.integer.value[0] = val;
1839         ucontrol->value.integer.value[1] = val;
1840         kctl->put(kctl, ucontrol);
1841         kfree(ucontrol);
1842         return 0;
1843 }
1844 
1845 struct slave_init_arg {
1846         struct hda_codec *codec;
1847         int step;
1848 };
1849 
1850 /* initialize the slave volume with 0dB via snd_ctl_apply_vmaster_slaves() */
1851 static int init_slave_0dB(struct snd_kcontrol *slave,
1852                           struct snd_kcontrol *kctl,
1853                           void *_arg)
1854 {
1855         struct slave_init_arg *arg = _arg;
1856         int _tlv[4];
1857         const int *tlv = NULL;
1858         int step;
1859         int val;
1860 
1861         if (kctl->vd[0].access & SNDRV_CTL_ELEM_ACCESS_TLV_CALLBACK) {
1862                 if (kctl->tlv.c != snd_hda_mixer_amp_tlv) {
1863                         codec_err(arg->codec,
1864                                   "Unexpected TLV callback for slave %s:%d\n",
1865                                   kctl->id.name, kctl->id.index);
1866                         return 0; /* ignore */
1867                 }
1868                 get_ctl_amp_tlv(kctl, _tlv);
1869                 tlv = _tlv;
1870         } else if (kctl->vd[0].access & SNDRV_CTL_ELEM_ACCESS_TLV_READ)
1871                 tlv = kctl->tlv.p;
1872 
1873         if (!tlv || tlv[SNDRV_CTL_TLVO_TYPE] != SNDRV_CTL_TLVT_DB_SCALE)
1874                 return 0;
1875 
1876         step = tlv[SNDRV_CTL_TLVO_DB_SCALE_MUTE_AND_STEP];
1877         step &= ~TLV_DB_SCALE_MUTE;
1878         if (!step)
1879                 return 0;
1880         if (arg->step && arg->step != step) {
1881                 codec_err(arg->codec,
1882                           "Mismatching dB step for vmaster slave (%d!=%d)\n",
1883                           arg->step, step);
1884                 return 0;
1885         }
1886 
1887         arg->step = step;
1888         val = -tlv[SNDRV_CTL_TLVO_DB_SCALE_MIN] / step;
1889         if (val > 0) {
1890                 put_kctl_with_value(slave, val);
1891                 return val;
1892         }
1893 
1894         return 0;
1895 }
1896 
1897 /* unmute the slave via snd_ctl_apply_vmaster_slaves() */
1898 static int init_slave_unmute(struct snd_kcontrol *slave,
1899                              struct snd_kcontrol *kctl,
1900                              void *_arg)
1901 {
1902         return put_kctl_with_value(slave, 1);
1903 }
1904 
1905 static int add_slave(struct hda_codec *codec,
1906                      void *data, struct snd_kcontrol *slave)
1907 {
1908         return snd_ctl_add_slave(data, slave);
1909 }
1910 
1911 /**
1912  * __snd_hda_add_vmaster - create a virtual master control and add slaves
1913  * @codec: HD-audio codec
1914  * @name: vmaster control name
1915  * @tlv: TLV data (optional)
1916  * @slaves: slave control names (optional)
1917  * @suffix: suffix string to each slave name (optional)
1918  * @init_slave_vol: initialize slaves to unmute/0dB
1919  * @ctl_ret: store the vmaster kcontrol in return
1920  *
1921  * Create a virtual master control with the given name.  The TLV data
1922  * must be either NULL or a valid data.
1923  *
1924  * @slaves is a NULL-terminated array of strings, each of which is a
1925  * slave control name.  All controls with these names are assigned to
1926  * the new virtual master control.
1927  *
1928  * This function returns zero if successful or a negative error code.
1929  */
1930 int __snd_hda_add_vmaster(struct hda_codec *codec, char *name,
1931                         unsigned int *tlv, const char * const *slaves,
1932                           const char *suffix, bool init_slave_vol,
1933                           struct snd_kcontrol **ctl_ret)
1934 {
1935         struct snd_kcontrol *kctl;
1936         int err;
1937 
1938         if (ctl_ret)
1939                 *ctl_ret = NULL;
1940 
1941         err = map_slaves(codec, slaves, suffix, check_slave_present, NULL);
1942         if (err != 1) {
1943                 codec_dbg(codec, "No slave found for %s\n", name);
1944                 return 0;
1945         }
1946         kctl = snd_ctl_make_virtual_master(name, tlv);
1947         if (!kctl)
1948                 return -ENOMEM;
1949         err = snd_hda_ctl_add(codec, 0, kctl);
1950         if (err < 0)
1951                 return err;
1952 
1953         err = map_slaves(codec, slaves, suffix, add_slave, kctl);
1954         if (err < 0)
1955                 return err;
1956 
1957         /* init with master mute & zero volume */
1958         put_kctl_with_value(kctl, 0);
1959         if (init_slave_vol) {
1960                 struct slave_init_arg arg = {
1961                         .codec = codec,
1962                         .step = 0,
1963                 };
1964                 snd_ctl_apply_vmaster_slaves(kctl,
1965                                              tlv ? init_slave_0dB : init_slave_unmute,
1966                                              &arg);
1967         }
1968 
1969         if (ctl_ret)
1970                 *ctl_ret = kctl;
1971         return 0;
1972 }
1973 EXPORT_SYMBOL_GPL(__snd_hda_add_vmaster);
1974 
1975 /*
1976  * mute-LED control using vmaster
1977  */
1978 static int vmaster_mute_mode_info(struct snd_kcontrol *kcontrol,
1979                                   struct snd_ctl_elem_info *uinfo)
1980 {
1981         static const char * const texts[] = {
1982                 "On", "Off", "Follow Master"
1983         };
1984 
1985         return snd_ctl_enum_info(uinfo, 1, 3, texts);
1986 }
1987 
1988 static int vmaster_mute_mode_get(struct snd_kcontrol *kcontrol,
1989                                  struct snd_ctl_elem_value *ucontrol)
1990 {
1991         struct hda_vmaster_mute_hook *hook = snd_kcontrol_chip(kcontrol);
1992         ucontrol->value.enumerated.item[0] = hook->mute_mode;
1993         return 0;
1994 }
1995 
1996 static int vmaster_mute_mode_put(struct snd_kcontrol *kcontrol,
1997                                  struct snd_ctl_elem_value *ucontrol)
1998 {
1999         struct hda_vmaster_mute_hook *hook = snd_kcontrol_chip(kcontrol);
2000         unsigned int old_mode = hook->mute_mode;
2001 
2002         hook->mute_mode = ucontrol->value.enumerated.item[0];
2003         if (hook->mute_mode > HDA_VMUTE_FOLLOW_MASTER)
2004                 hook->mute_mode = HDA_VMUTE_FOLLOW_MASTER;
2005         if (old_mode == hook->mute_mode)
2006                 return 0;
2007         snd_hda_sync_vmaster_hook(hook);
2008         return 1;
2009 }
2010 
2011 static const struct snd_kcontrol_new vmaster_mute_mode = {
2012         .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
2013         .name = "Mute-LED Mode",
2014         .info = vmaster_mute_mode_info,
2015         .get = vmaster_mute_mode_get,
2016         .put = vmaster_mute_mode_put,
2017 };
2018 
2019 /* meta hook to call each driver's vmaster hook */
2020 static void vmaster_hook(void *private_data, int enabled)
2021 {
2022         struct hda_vmaster_mute_hook *hook = private_data;
2023 
2024         if (hook->mute_mode != HDA_VMUTE_FOLLOW_MASTER)
2025                 enabled = hook->mute_mode;
2026         hook->hook(hook->codec, enabled);
2027 }
2028 
2029 /**
2030  * snd_hda_add_vmaster_hook - Add a vmaster hook for mute-LED
2031  * @codec: the HDA codec
2032  * @hook: the vmaster hook object
2033  * @expose_enum_ctl: flag to create an enum ctl
2034  *
2035  * Add a mute-LED hook with the given vmaster switch kctl.
2036  * When @expose_enum_ctl is set, "Mute-LED Mode" control is automatically
2037  * created and associated with the given hook.
2038  */
2039 int snd_hda_add_vmaster_hook(struct hda_codec *codec,
2040                              struct hda_vmaster_mute_hook *hook,
2041                              bool expose_enum_ctl)
2042 {
2043         struct snd_kcontrol *kctl;
2044 
2045         if (!hook->hook || !hook->sw_kctl)
2046                 return 0;
2047         hook->codec = codec;
2048         hook->mute_mode = HDA_VMUTE_FOLLOW_MASTER;
2049         snd_ctl_add_vmaster_hook(hook->sw_kctl, vmaster_hook, hook);
2050         if (!expose_enum_ctl)
2051                 return 0;
2052         kctl = snd_ctl_new1(&vmaster_mute_mode, hook);
2053         if (!kctl)
2054                 return -ENOMEM;
2055         return snd_hda_ctl_add(codec, 0, kctl);
2056 }
2057 EXPORT_SYMBOL_GPL(snd_hda_add_vmaster_hook);
2058 
2059 /**
2060  * snd_hda_sync_vmaster_hook - Sync vmaster hook
2061  * @hook: the vmaster hook
2062  *
2063  * Call the hook with the current value for synchronization.
2064  * Should be called in init callback.
2065  */
2066 void snd_hda_sync_vmaster_hook(struct hda_vmaster_mute_hook *hook)
2067 {
2068         if (!hook->hook || !hook->codec)
2069                 return;
2070         /* don't call vmaster hook in the destructor since it might have
2071          * been already destroyed
2072          */
2073         if (hook->codec->bus->shutdown)
2074                 return;
2075         snd_ctl_sync_vmaster_hook(hook->sw_kctl);
2076 }
2077 EXPORT_SYMBOL_GPL(snd_hda_sync_vmaster_hook);
2078 
2079 
2080 /**
2081  * snd_hda_mixer_amp_switch_info - Info callback for a standard AMP mixer switch
2082  * @kcontrol: referred ctl element
2083  * @uinfo: pointer to get/store the data
2084  *
2085  * The control element is supposed to have the private_value field
2086  * set up via HDA_COMPOSE_AMP_VAL*() or related macros.
2087  */
2088 int snd_hda_mixer_amp_switch_info(struct snd_kcontrol *kcontrol,
2089                                   struct snd_ctl_elem_info *uinfo)
2090 {
2091         int chs = get_amp_channels(kcontrol);
2092 
2093         uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN;
2094         uinfo->count = chs == 3 ? 2 : 1;
2095         uinfo->value.integer.min = 0;
2096         uinfo->value.integer.max = 1;
2097         return 0;
2098 }
2099 EXPORT_SYMBOL_GPL(snd_hda_mixer_amp_switch_info);
2100 
2101 /**
2102  * snd_hda_mixer_amp_switch_get - Get callback for a standard AMP mixer switch
2103  * @kcontrol: ctl element
2104  * @ucontrol: pointer to get/store the data
2105  *
2106  * The control element is supposed to have the private_value field
2107  * set up via HDA_COMPOSE_AMP_VAL*() or related macros.
2108  */
2109 int snd_hda_mixer_amp_switch_get(struct snd_kcontrol *kcontrol,
2110                                  struct snd_ctl_elem_value *ucontrol)
2111 {
2112         struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
2113         hda_nid_t nid = get_amp_nid(kcontrol);
2114         int chs = get_amp_channels(kcontrol);
2115         int dir = get_amp_direction(kcontrol);
2116         int idx = get_amp_index(kcontrol);
2117         long *valp = ucontrol->value.integer.value;
2118 
2119         if (chs & 1)
2120                 *valp++ = (snd_hda_codec_amp_read(codec, nid, 0, dir, idx) &
2121                            HDA_AMP_MUTE) ? 0 : 1;
2122         if (chs & 2)
2123                 *valp = (snd_hda_codec_amp_read(codec, nid, 1, dir, idx) &
2124                          HDA_AMP_MUTE) ? 0 : 1;
2125         return 0;
2126 }
2127 EXPORT_SYMBOL_GPL(snd_hda_mixer_amp_switch_get);
2128 
2129 /**
2130  * snd_hda_mixer_amp_switch_put - Put callback for a standard AMP mixer switch
2131  * @kcontrol: ctl element
2132  * @ucontrol: pointer to get/store the data
2133  *
2134  * The control element is supposed to have the private_value field
2135  * set up via HDA_COMPOSE_AMP_VAL*() or related macros.
2136  */
2137 int snd_hda_mixer_amp_switch_put(struct snd_kcontrol *kcontrol,
2138                                  struct snd_ctl_elem_value *ucontrol)
2139 {
2140         struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
2141         hda_nid_t nid = get_amp_nid(kcontrol);
2142         int chs = get_amp_channels(kcontrol);
2143         int dir = get_amp_direction(kcontrol);
2144         int idx = get_amp_index(kcontrol);
2145         long *valp = ucontrol->value.integer.value;
2146         int change = 0;
2147 
2148         if (chs & 1) {
2149                 change = snd_hda_codec_amp_update(codec, nid, 0, dir, idx,
2150                                                   HDA_AMP_MUTE,
2151                                                   *valp ? 0 : HDA_AMP_MUTE);
2152                 valp++;
2153         }
2154         if (chs & 2)
2155                 change |= snd_hda_codec_amp_update(codec, nid, 1, dir, idx,
2156                                                    HDA_AMP_MUTE,
2157                                                    *valp ? 0 : HDA_AMP_MUTE);
2158         hda_call_check_power_status(codec, nid);
2159         return change;
2160 }
2161 EXPORT_SYMBOL_GPL(snd_hda_mixer_amp_switch_put);
2162 
2163 /*
2164  * SPDIF out controls
2165  */
2166 
2167 static int snd_hda_spdif_mask_info(struct snd_kcontrol *kcontrol,
2168                                    struct snd_ctl_elem_info *uinfo)
2169 {
2170         uinfo->type = SNDRV_CTL_ELEM_TYPE_IEC958;
2171         uinfo->count = 1;
2172         return 0;
2173 }
2174 
2175 static int snd_hda_spdif_cmask_get(struct snd_kcontrol *kcontrol,
2176                                    struct snd_ctl_elem_value *ucontrol)
2177 {
2178         ucontrol->value.iec958.status[0] = IEC958_AES0_PROFESSIONAL |
2179                                            IEC958_AES0_NONAUDIO |
2180                                            IEC958_AES0_CON_EMPHASIS_5015 |
2181                                            IEC958_AES0_CON_NOT_COPYRIGHT;
2182         ucontrol->value.iec958.status[1] = IEC958_AES1_CON_CATEGORY |
2183                                            IEC958_AES1_CON_ORIGINAL;
2184         return 0;
2185 }
2186 
2187 static int snd_hda_spdif_pmask_get(struct snd_kcontrol *kcontrol,
2188                                    struct snd_ctl_elem_value *ucontrol)
2189 {
2190         ucontrol->value.iec958.status[0] = IEC958_AES0_PROFESSIONAL |
2191                                            IEC958_AES0_NONAUDIO |
2192                                            IEC958_AES0_PRO_EMPHASIS_5015;
2193         return 0;
2194 }
2195 
2196 static int snd_hda_spdif_default_get(struct snd_kcontrol *kcontrol,
2197                                      struct snd_ctl_elem_value *ucontrol)
2198 {
2199         struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
2200         int idx = kcontrol->private_value;
2201         struct hda_spdif_out *spdif;
2202 
2203         if (WARN_ON(codec->spdif_out.used <= idx))
2204                 return -EINVAL;
2205         mutex_lock(&codec->spdif_mutex);
2206         spdif = snd_array_elem(&codec->spdif_out, idx);
2207         ucontrol->value.iec958.status[0] = spdif->status & 0xff;
2208         ucontrol->value.iec958.status[1] = (spdif->status >> 8) & 0xff;
2209         ucontrol->value.iec958.status[2] = (spdif->status >> 16) & 0xff;
2210         ucontrol->value.iec958.status[3] = (spdif->status >> 24) & 0xff;
2211         mutex_unlock(&codec->spdif_mutex);
2212 
2213         return 0;
2214 }
2215 
2216 /* convert from SPDIF status bits to HDA SPDIF bits
2217  * bit 0 (DigEn) is always set zero (to be filled later)
2218  */
2219 static unsigned short convert_from_spdif_status(unsigned int sbits)
2220 {
2221         unsigned short val = 0;
2222 
2223         if (sbits & IEC958_AES0_PROFESSIONAL)
2224                 val |= AC_DIG1_PROFESSIONAL;
2225         if (sbits & IEC958_AES0_NONAUDIO)
2226                 val |= AC_DIG1_NONAUDIO;
2227         if (sbits & IEC958_AES0_PROFESSIONAL) {
2228                 if ((sbits & IEC958_AES0_PRO_EMPHASIS) ==
2229                     IEC958_AES0_PRO_EMPHASIS_5015)
2230                         val |= AC_DIG1_EMPHASIS;
2231         } else {
2232                 if ((sbits & IEC958_AES0_CON_EMPHASIS) ==
2233                     IEC958_AES0_CON_EMPHASIS_5015)
2234                         val |= AC_DIG1_EMPHASIS;
2235                 if (!(sbits & IEC958_AES0_CON_NOT_COPYRIGHT))
2236                         val |= AC_DIG1_COPYRIGHT;
2237                 if (sbits & (IEC958_AES1_CON_ORIGINAL << 8))
2238                         val |= AC_DIG1_LEVEL;
2239                 val |= sbits & (IEC958_AES1_CON_CATEGORY << 8);
2240         }
2241         return val;
2242 }
2243 
2244 /* convert to SPDIF status bits from HDA SPDIF bits
2245  */
2246 static unsigned int convert_to_spdif_status(unsigned short val)
2247 {
2248         unsigned int sbits = 0;
2249 
2250         if (val & AC_DIG1_NONAUDIO)
2251                 sbits |= IEC958_AES0_NONAUDIO;
2252         if (val & AC_DIG1_PROFESSIONAL)
2253                 sbits |= IEC958_AES0_PROFESSIONAL;
2254         if (sbits & IEC958_AES0_PROFESSIONAL) {
2255                 if (val & AC_DIG1_EMPHASIS)
2256                         sbits |= IEC958_AES0_PRO_EMPHASIS_5015;
2257         } else {
2258                 if (val & AC_DIG1_EMPHASIS)
2259                         sbits |= IEC958_AES0_CON_EMPHASIS_5015;
2260                 if (!(val & AC_DIG1_COPYRIGHT))
2261                         sbits |= IEC958_AES0_CON_NOT_COPYRIGHT;
2262                 if (val & AC_DIG1_LEVEL)
2263                         sbits |= (IEC958_AES1_CON_ORIGINAL << 8);
2264                 sbits |= val & (0x7f << 8);
2265         }
2266         return sbits;
2267 }
2268 
2269 /* set digital convert verbs both for the given NID and its slaves */
2270 static void set_dig_out(struct hda_codec *codec, hda_nid_t nid,
2271                         int mask, int val)
2272 {
2273         const hda_nid_t *d;
2274 
2275         snd_hdac_regmap_update(&codec->core, nid, AC_VERB_SET_DIGI_CONVERT_1,
2276                                mask, val);
2277         d = codec->slave_dig_outs;
2278         if (!d)
2279                 return;
2280         for (; *d; d++)
2281                 snd_hdac_regmap_update(&codec->core, *d,
2282                                        AC_VERB_SET_DIGI_CONVERT_1, mask, val);
2283 }
2284 
2285 static inline void set_dig_out_convert(struct hda_codec *codec, hda_nid_t nid,
2286                                        int dig1, int dig2)
2287 {
2288         unsigned int mask = 0;
2289         unsigned int val = 0;
2290 
2291         if (dig1 != -1) {
2292                 mask |= 0xff;
2293                 val = dig1;
2294         }
2295         if (dig2 != -1) {
2296                 mask |= 0xff00;
2297                 val |= dig2 << 8;
2298         }
2299         set_dig_out(codec, nid, mask, val);
2300 }
2301 
2302 static int snd_hda_spdif_default_put(struct snd_kcontrol *kcontrol,
2303                                      struct snd_ctl_elem_value *ucontrol)
2304 {
2305         struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
2306         int idx = kcontrol->private_value;
2307         struct hda_spdif_out *spdif;
2308         hda_nid_t nid;
2309         unsigned short val;
2310         int change;
2311 
2312         if (WARN_ON(codec->spdif_out.used <= idx))
2313                 return -EINVAL;
2314         mutex_lock(&codec->spdif_mutex);
2315         spdif = snd_array_elem(&codec->spdif_out, idx);
2316         nid = spdif->nid;
2317         spdif->status = ucontrol->value.iec958.status[0] |
2318                 ((unsigned int)ucontrol->value.iec958.status[1] << 8) |
2319                 ((unsigned int)ucontrol->value.iec958.status[2] << 16) |
2320                 ((unsigned int)ucontrol->value.iec958.status[3] << 24);
2321         val = convert_from_spdif_status(spdif->status);
2322         val |= spdif->ctls & 1;
2323         change = spdif->ctls != val;
2324         spdif->ctls = val;
2325         if (change && nid != (u16)-1)
2326                 set_dig_out_convert(codec, nid, val & 0xff, (val >> 8) & 0xff);
2327         mutex_unlock(&codec->spdif_mutex);
2328         return change;
2329 }
2330 
2331 #define snd_hda_spdif_out_switch_info   snd_ctl_boolean_mono_info
2332 
2333 static int snd_hda_spdif_out_switch_get(struct snd_kcontrol *kcontrol,
2334                                         struct snd_ctl_elem_value *ucontrol)
2335 {
2336         struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
2337         int idx = kcontrol->private_value;
2338         struct hda_spdif_out *spdif;
2339 
2340         if (WARN_ON(codec->spdif_out.used <= idx))
2341                 return -EINVAL;
2342         mutex_lock(&codec->spdif_mutex);
2343         spdif = snd_array_elem(&codec->spdif_out, idx);
2344         ucontrol->value.integer.value[0] = spdif->ctls & AC_DIG1_ENABLE;
2345         mutex_unlock(&codec->spdif_mutex);
2346         return 0;
2347 }
2348 
2349 static inline void set_spdif_ctls(struct hda_codec *codec, hda_nid_t nid,
2350                                   int dig1, int dig2)
2351 {
2352         set_dig_out_convert(codec, nid, dig1, dig2);
2353         /* unmute amp switch (if any) */
2354         if ((get_wcaps(codec, nid) & AC_WCAP_OUT_AMP) &&
2355             (dig1 & AC_DIG1_ENABLE))
2356                 snd_hda_codec_amp_stereo(codec, nid, HDA_OUTPUT, 0,
2357                                             HDA_AMP_MUTE, 0);
2358 }
2359 
2360 static int snd_hda_spdif_out_switch_put(struct snd_kcontrol *kcontrol,
2361                                         struct snd_ctl_elem_value *ucontrol)
2362 {
2363         struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
2364         int idx = kcontrol->private_value;
2365         struct hda_spdif_out *spdif;
2366         hda_nid_t nid;
2367         unsigned short val;
2368         int change;
2369 
2370         if (WARN_ON(codec->spdif_out.used <= idx))
2371                 return -EINVAL;
2372         mutex_lock(&codec->spdif_mutex);
2373         spdif = snd_array_elem(&codec->spdif_out, idx);
2374         nid = spdif->nid;
2375         val = spdif->ctls & ~AC_DIG1_ENABLE;
2376         if (ucontrol->value.integer.value[0])
2377                 val |= AC_DIG1_ENABLE;
2378         change = spdif->ctls != val;
2379         spdif->ctls = val;
2380         if (change && nid != (u16)-1)
2381                 set_spdif_ctls(codec, nid, val & 0xff, -1);
2382         mutex_unlock(&codec->spdif_mutex);
2383         return change;
2384 }
2385 
2386 static struct snd_kcontrol_new dig_mixes[] = {
2387         {
2388                 .access = SNDRV_CTL_ELEM_ACCESS_READ,
2389                 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
2390                 .name = SNDRV_CTL_NAME_IEC958("", PLAYBACK, CON_MASK),
2391                 .info = snd_hda_spdif_mask_info,
2392                 .get = snd_hda_spdif_cmask_get,
2393         },
2394         {
2395                 .access = SNDRV_CTL_ELEM_ACCESS_READ,
2396                 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
2397                 .name = SNDRV_CTL_NAME_IEC958("", PLAYBACK, PRO_MASK),
2398                 .info = snd_hda_spdif_mask_info,
2399                 .get = snd_hda_spdif_pmask_get,
2400         },
2401         {
2402                 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
2403                 .name = SNDRV_CTL_NAME_IEC958("", PLAYBACK, DEFAULT),
2404                 .info = snd_hda_spdif_mask_info,
2405                 .get = snd_hda_spdif_default_get,
2406                 .put = snd_hda_spdif_default_put,
2407         },
2408         {
2409                 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
2410                 .name = SNDRV_CTL_NAME_IEC958("", PLAYBACK, SWITCH),
2411                 .info = snd_hda_spdif_out_switch_info,
2412                 .get = snd_hda_spdif_out_switch_get,
2413                 .put = snd_hda_spdif_out_switch_put,
2414         },
2415         { } /* end */
2416 };
2417 
2418 /**
2419  * snd_hda_create_dig_out_ctls - create Output SPDIF-related controls
2420  * @codec: the HDA codec
2421  * @associated_nid: NID that new ctls associated with
2422  * @cvt_nid: converter NID
2423  * @type: HDA_PCM_TYPE_*
2424  * Creates controls related with the digital output.
2425  * Called from each patch supporting the digital out.
2426  *
2427  * Returns 0 if successful, or a negative error code.
2428  */
2429 int snd_hda_create_dig_out_ctls(struct hda_codec *codec,
2430                                 hda_nid_t associated_nid,
2431                                 hda_nid_t cvt_nid,
2432                                 int type)
2433 {
2434         int err;
2435         struct snd_kcontrol *kctl;
2436         struct snd_kcontrol_new *dig_mix;
2437         int idx = 0;
2438         int val = 0;
2439         const int spdif_index = 16;
2440         struct hda_spdif_out *spdif;
2441         struct hda_bus *bus = codec->bus;
2442 
2443         if (bus->primary_dig_out_type == HDA_PCM_TYPE_HDMI &&
2444             type == HDA_PCM_TYPE_SPDIF) {
2445                 idx = spdif_index;
2446         } else if (bus->primary_dig_out_type == HDA_PCM_TYPE_SPDIF &&
2447                    type == HDA_PCM_TYPE_HDMI) {
2448                 /* suppose a single SPDIF device */
2449                 for (dig_mix = dig_mixes; dig_mix->name; dig_mix++) {
2450                         kctl = find_mixer_ctl(codec, dig_mix->name, 0, 0);
2451                         if (!kctl)
2452                                 break;
2453                         kctl->id.index = spdif_index;
2454                 }
2455                 bus->primary_dig_out_type = HDA_PCM_TYPE_HDMI;
2456         }
2457         if (!bus->primary_dig_out_type)
2458                 bus->primary_dig_out_type = type;
2459 
2460         idx = find_empty_mixer_ctl_idx(codec, "IEC958 Playback Switch", idx);
2461         if (idx < 0) {
2462                 codec_err(codec, "too many IEC958 outputs\n");
2463                 return -EBUSY;
2464         }
2465         spdif = snd_array_new(&codec->spdif_out);
2466         if (!spdif)
2467                 return -ENOMEM;
2468         for (dig_mix = dig_mixes; dig_mix->name; dig_mix++) {
2469                 kctl = snd_ctl_new1(dig_mix, codec);
2470                 if (!kctl)
2471                         return -ENOMEM;
2472                 kctl->id.index = idx;
2473                 kctl->private_value = codec->spdif_out.used - 1;
2474                 err = snd_hda_ctl_add(codec, associated_nid, kctl);
2475                 if (err < 0)
2476                         return err;
2477         }
2478         spdif->nid = cvt_nid;
2479         snd_hdac_regmap_read(&codec->core, cvt_nid,
2480                              AC_VERB_GET_DIGI_CONVERT_1, &val);
2481         spdif->ctls = val;
2482         spdif->status = convert_to_spdif_status(spdif->ctls);
2483         return 0;
2484 }
2485 EXPORT_SYMBOL_GPL(snd_hda_create_dig_out_ctls);
2486 
2487 /**
2488  * snd_hda_spdif_out_of_nid - get the hda_spdif_out entry from the given NID
2489  * @codec: the HDA codec
2490  * @nid: widget NID
2491  *
2492  * call within spdif_mutex lock
2493  */
2494 struct hda_spdif_out *snd_hda_spdif_out_of_nid(struct hda_codec *codec,
2495                                                hda_nid_t nid)
2496 {
2497         struct hda_spdif_out *spdif;
2498         int i;
2499 
2500         snd_array_for_each(&codec->spdif_out, i, spdif) {
2501                 if (spdif->nid == nid)
2502                         return spdif;
2503         }
2504         return NULL;
2505 }
2506 EXPORT_SYMBOL_GPL(snd_hda_spdif_out_of_nid);
2507 
2508 /**
2509  * snd_hda_spdif_ctls_unassign - Unassign the given SPDIF ctl
2510  * @codec: the HDA codec
2511  * @idx: the SPDIF ctl index
2512  *
2513  * Unassign the widget from the given SPDIF control.
2514  */
2515 void snd_hda_spdif_ctls_unassign(struct hda_codec *codec, int idx)
2516 {
2517         struct hda_spdif_out *spdif;
2518 
2519         if (WARN_ON(codec->spdif_out.used <= idx))
2520                 return;
2521         mutex_lock(&codec->spdif_mutex);
2522         spdif = snd_array_elem(&codec->spdif_out, idx);
2523         spdif->nid = (u16)-1;
2524         mutex_unlock(&codec->spdif_mutex);
2525 }
2526 EXPORT_SYMBOL_GPL(snd_hda_spdif_ctls_unassign);
2527 
2528 /**
2529  * snd_hda_spdif_ctls_assign - Assign the SPDIF controls to the given NID
2530  * @codec: the HDA codec
2531  * @idx: the SPDIF ctl idx
2532  * @nid: widget NID
2533  *
2534  * Assign the widget to the SPDIF control with the given index.
2535  */
2536 void snd_hda_spdif_ctls_assign(struct hda_codec *codec, int idx, hda_nid_t nid)
2537 {
2538         struct hda_spdif_out *spdif;
2539         unsigned short val;
2540 
2541         if (WARN_ON(codec->spdif_out.used <= idx))
2542                 return;
2543         mutex_lock(&codec->spdif_mutex);
2544         spdif = snd_array_elem(&codec->spdif_out, idx);
2545         if (spdif->nid != nid) {
2546                 spdif->nid = nid;
2547                 val = spdif->ctls;
2548                 set_spdif_ctls(codec, nid, val & 0xff, (val >> 8) & 0xff);
2549         }
2550         mutex_unlock(&codec->spdif_mutex);
2551 }
2552 EXPORT_SYMBOL_GPL(snd_hda_spdif_ctls_assign);
2553 
2554 /*
2555  * SPDIF sharing with analog output
2556  */
2557 static int spdif_share_sw_get(struct snd_kcontrol *kcontrol,
2558                               struct snd_ctl_elem_value *ucontrol)
2559 {
2560         struct hda_multi_out *mout = snd_kcontrol_chip(kcontrol);
2561         ucontrol->value.integer.value[0] = mout->share_spdif;
2562         return 0;
2563 }
2564 
2565 static int spdif_share_sw_put(struct snd_kcontrol *kcontrol,
2566                               struct snd_ctl_elem_value *ucontrol)
2567 {
2568         struct hda_multi_out *mout = snd_kcontrol_chip(kcontrol);
2569         mout->share_spdif = !!ucontrol->value.integer.value[0];
2570         return 0;
2571 }
2572 
2573 static const struct snd_kcontrol_new spdif_share_sw = {
2574         .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
2575         .name = "IEC958 Default PCM Playback Switch",
2576         .info = snd_ctl_boolean_mono_info,
2577         .get = spdif_share_sw_get,
2578         .put = spdif_share_sw_put,
2579 };
2580 
2581 /**
2582  * snd_hda_create_spdif_share_sw - create Default PCM switch
2583  * @codec: the HDA codec
2584  * @mout: multi-out instance
2585  */
2586 int snd_hda_create_spdif_share_sw(struct hda_codec *codec,
2587                                   struct hda_multi_out *mout)
2588 {
2589         struct snd_kcontrol *kctl;
2590 
2591         if (!mout->dig_out_nid)
2592                 return 0;
2593 
2594         kctl = snd_ctl_new1(&spdif_share_sw, mout);
2595         if (!kctl)
2596                 return -ENOMEM;
2597         /* ATTENTION: here mout is passed as private_data, instead of codec */
2598         return snd_hda_ctl_add(codec, mout->dig_out_nid, kctl);
2599 }
2600 EXPORT_SYMBOL_GPL(snd_hda_create_spdif_share_sw);
2601 
2602 /*
2603  * SPDIF input
2604  */
2605 
2606 #define snd_hda_spdif_in_switch_info    snd_hda_spdif_out_switch_info
2607 
2608 static int snd_hda_spdif_in_switch_get(struct snd_kcontrol *kcontrol,
2609                                        struct snd_ctl_elem_value *ucontrol)
2610 {
2611         struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
2612 
2613         ucontrol->value.integer.value[0] = codec->spdif_in_enable;
2614         return 0;
2615 }
2616 
2617 static int snd_hda_spdif_in_switch_put(struct snd_kcontrol *kcontrol,
2618                                        struct snd_ctl_elem_value *ucontrol)
2619 {
2620         struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
2621         hda_nid_t nid = kcontrol->private_value;
2622         unsigned int val = !!ucontrol->value.integer.value[0];
2623         int change;
2624 
2625         mutex_lock(&codec->spdif_mutex);
2626         change = codec->spdif_in_enable != val;
2627         if (change) {
2628                 codec->spdif_in_enable = val;
2629                 snd_hdac_regmap_write(&codec->core, nid,
2630                                       AC_VERB_SET_DIGI_CONVERT_1, val);
2631         }
2632         mutex_unlock(&codec->spdif_mutex);
2633         return change;
2634 }
2635 
2636 static int snd_hda_spdif_in_status_get(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;
2642         unsigned int sbits;
2643 
2644         snd_hdac_regmap_read(&codec->core, nid,
2645                              AC_VERB_GET_DIGI_CONVERT_1, &val);
2646         sbits = convert_to_spdif_status(val);
2647         ucontrol->value.iec958.status[0] = sbits;
2648         ucontrol->value.iec958.status[1] = sbits >> 8;
2649         ucontrol->value.iec958.status[2] = sbits >> 16;
2650         ucontrol->value.iec958.status[3] = sbits >> 24;
2651         return 0;
2652 }
2653 
2654 static struct snd_kcontrol_new dig_in_ctls[] = {
2655         {
2656                 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
2657                 .name = SNDRV_CTL_NAME_IEC958("", CAPTURE, SWITCH),
2658                 .info = snd_hda_spdif_in_switch_info,
2659                 .get = snd_hda_spdif_in_switch_get,
2660                 .put = snd_hda_spdif_in_switch_put,
2661         },
2662         {
2663                 .access = SNDRV_CTL_ELEM_ACCESS_READ,
2664                 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
2665                 .name = SNDRV_CTL_NAME_IEC958("", CAPTURE, DEFAULT),
2666                 .info = snd_hda_spdif_mask_info,
2667                 .get = snd_hda_spdif_in_status_get,
2668         },
2669         { } /* end */
2670 };
2671 
2672 /**
2673  * snd_hda_create_spdif_in_ctls - create Input SPDIF-related controls
2674  * @codec: the HDA codec
2675  * @nid: audio in widget NID
2676  *
2677  * Creates controls related with the SPDIF input.
2678  * Called from each patch supporting the SPDIF in.
2679  *
2680  * Returns 0 if successful, or a negative error code.
2681  */
2682 int snd_hda_create_spdif_in_ctls(struct hda_codec *codec, hda_nid_t nid)
2683 {
2684         int err;
2685         struct snd_kcontrol *kctl;
2686         struct snd_kcontrol_new *dig_mix;
2687         int idx;
2688 
2689         idx = find_empty_mixer_ctl_idx(codec, "IEC958 Capture Switch", 0);
2690         if (idx < 0) {
2691                 codec_err(codec, "too many IEC958 inputs\n");
2692                 return -EBUSY;
2693         }
2694         for (dig_mix = dig_in_ctls; dig_mix->name; dig_mix++) {
2695                 kctl = snd_ctl_new1(dig_mix, codec);
2696                 if (!kctl)
2697                         return -ENOMEM;
2698                 kctl->private_value = nid;
2699                 err = snd_hda_ctl_add(codec, nid, kctl);
2700                 if (err < 0)
2701                         return err;
2702         }
2703         codec->spdif_in_enable =
2704                 snd_hda_codec_read(codec, nid, 0,
2705                                    AC_VERB_GET_DIGI_CONVERT_1, 0) &
2706                 AC_DIG1_ENABLE;
2707         return 0;
2708 }
2709 EXPORT_SYMBOL_GPL(snd_hda_create_spdif_in_ctls);
2710 
2711 /**
2712  * snd_hda_codec_set_power_to_all - Set the power state to all widgets
2713  * @codec: the HDA codec
2714  * @fg: function group (not used now)
2715  * @power_state: the power state to set (AC_PWRST_*)
2716  *
2717  * Set the given power state to all widgets that have the power control.
2718  * If the codec has power_filter set, it evaluates the power state and
2719  * filter out if it's unchanged as D3.
2720  */
2721 void snd_hda_codec_set_power_to_all(struct hda_codec *codec, hda_nid_t fg,
2722                                     unsigned int power_state)
2723 {
2724         hda_nid_t nid;
2725 
2726         for_each_hda_codec_node(nid, codec) {
2727                 unsigned int wcaps = get_wcaps(codec, nid);
2728                 unsigned int state = power_state;
2729                 if (!(wcaps & AC_WCAP_POWER))
2730                         continue;
2731                 if (codec->power_filter) {
2732                         state = codec->power_filter(codec, nid, power_state);
2733                         if (state != power_state && power_state == AC_PWRST_D3)
2734                                 continue;
2735                 }
2736                 snd_hda_codec_write(codec, nid, 0, AC_VERB_SET_POWER_STATE,
2737                                     state);
2738         }
2739 }
2740 EXPORT_SYMBOL_GPL(snd_hda_codec_set_power_to_all);
2741 
2742 /**
2743  * snd_hda_codec_eapd_power_filter - A power filter callback for EAPD
2744  * @codec: the HDA codec
2745  * @nid: widget NID
2746  * @power_state: power state to evalue
2747  *
2748  * Don't power down the widget if it controls eapd and EAPD_BTLENABLE is set.
2749  * This can be used a codec power_filter callback.
2750  */
2751 unsigned int snd_hda_codec_eapd_power_filter(struct hda_codec *codec,
2752                                              hda_nid_t nid,
2753                                              unsigned int power_state)
2754 {
2755         if (nid == codec->core.afg || nid == codec->core.mfg)
2756                 return power_state;
2757         if (power_state == AC_PWRST_D3 &&
2758             get_wcaps_type(get_wcaps(codec, nid)) == AC_WID_PIN &&
2759             (snd_hda_query_pin_caps(codec, nid) & AC_PINCAP_EAPD)) {
2760                 int eapd = snd_hda_codec_read(codec, nid, 0,
2761                                               AC_VERB_GET_EAPD_BTLENABLE, 0);
2762                 if (eapd & 0x02)
2763                         return AC_PWRST_D0;
2764         }
2765         return power_state;
2766 }
2767 EXPORT_SYMBOL_GPL(snd_hda_codec_eapd_power_filter);
2768 
2769 /*
2770  * set power state of the codec, and return the power state
2771  */
2772 static unsigned int hda_set_power_state(struct hda_codec *codec,
2773                                         unsigned int power_state)
2774 {
2775         hda_nid_t fg = codec->core.afg ? codec->core.afg : codec->core.mfg;
2776         int count;
2777         unsigned int state;
2778         int flags = 0;
2779 
2780         /* this delay seems necessary to avoid click noise at power-down */
2781         if (power_state == AC_PWRST_D3) {
2782                 if (codec->depop_delay < 0)
2783                         msleep(codec_has_epss(codec) ? 10 : 100);
2784                 else if (codec->depop_delay > 0)
2785                         msleep(codec->depop_delay);
2786                 flags = HDA_RW_NO_RESPONSE_FALLBACK;
2787         }
2788 
2789         /* repeat power states setting at most 10 times*/
2790         for (count = 0; count < 10; count++) {
2791                 if (codec->patch_ops.set_power_state)
2792                         codec->patch_ops.set_power_state(codec, fg,
2793                                                          power_state);
2794                 else {
2795                         state = power_state;
2796                         if (codec->power_filter)
2797                                 state = codec->power_filter(codec, fg, state);
2798                         if (state == power_state || power_state != AC_PWRST_D3)
2799                                 snd_hda_codec_read(codec, fg, flags,
2800                                                    AC_VERB_SET_POWER_STATE,
2801                                                    state);
2802                         snd_hda_codec_set_power_to_all(codec, fg, power_state);
2803                 }
2804                 state = snd_hda_sync_power_state(codec, fg, power_state);
2805                 if (!(state & AC_PWRST_ERROR))
2806                         break;
2807         }
2808 
2809         return state;
2810 }
2811 
2812 /* sync power states of all widgets;
2813  * this is called at the end of codec parsing
2814  */
2815 static void sync_power_up_states(struct hda_codec *codec)
2816 {
2817         hda_nid_t nid;
2818 
2819         /* don't care if no filter is used */
2820         if (!codec->power_filter)
2821                 return;
2822 
2823         for_each_hda_codec_node(nid, codec) {
2824                 unsigned int wcaps = get_wcaps(codec, nid);
2825                 unsigned int target;
2826                 if (!(wcaps & AC_WCAP_POWER))
2827                         continue;
2828                 target = codec->power_filter(codec, nid, AC_PWRST_D0);
2829                 if (target == AC_PWRST_D0)
2830                         continue;
2831                 if (!snd_hda_check_power_state(codec, nid, target))
2832                         snd_hda_codec_write(codec, nid, 0,
2833                                             AC_VERB_SET_POWER_STATE, target);
2834         }
2835 }
2836 
2837 #ifdef CONFIG_SND_HDA_RECONFIG
2838 /* execute additional init verbs */
2839 static void hda_exec_init_verbs(struct hda_codec *codec)
2840 {
2841         if (codec->init_verbs.list)
2842                 snd_hda_sequence_write(codec, codec->init_verbs.list);
2843 }
2844 #else
2845 static inline void hda_exec_init_verbs(struct hda_codec *codec) {}
2846 #endif
2847 
2848 #ifdef CONFIG_PM
2849 /* update the power on/off account with the current jiffies */
2850 static void update_power_acct(struct hda_codec *codec, bool on)
2851 {
2852         unsigned long delta = jiffies - codec->power_jiffies;
2853 
2854         if (on)
2855                 codec->power_on_acct += delta;
2856         else
2857                 codec->power_off_acct += delta;
2858         codec->power_jiffies += delta;
2859 }
2860 
2861 void snd_hda_update_power_acct(struct hda_codec *codec)
2862 {
2863         update_power_acct(codec, hda_codec_is_power_on(codec));
2864 }
2865 
2866 /*
2867  * call suspend and power-down; used both from PM and power-save
2868  * this function returns the power state in the end
2869  */
2870 static unsigned int hda_call_codec_suspend(struct hda_codec *codec)
2871 {
2872         unsigned int state;
2873 
2874         snd_hdac_enter_pm(&codec->core);
2875         if (codec->patch_ops.suspend)
2876                 codec->patch_ops.suspend(codec);
2877         hda_cleanup_all_streams(codec);
2878         state = hda_set_power_state(codec, AC_PWRST_D3);
2879         update_power_acct(codec, true);
2880         snd_hdac_leave_pm(&codec->core);
2881         return state;
2882 }
2883 
2884 /*
2885  * kick up codec; used both from PM and power-save
2886  */
2887 static void hda_call_codec_resume(struct hda_codec *codec)
2888 {
2889         snd_hdac_enter_pm(&codec->core);
2890         if (codec->core.regmap)
2891                 regcache_mark_dirty(codec->core.regmap);
2892 
2893         codec->power_jiffies = jiffies;
2894 
2895         hda_set_power_state(codec, AC_PWRST_D0);
2896         restore_shutup_pins(codec);
2897         hda_exec_init_verbs(codec);
2898         snd_hda_jack_set_dirty_all(codec);
2899         if (codec->patch_ops.resume)
2900                 codec->patch_ops.resume(codec);
2901         else {
2902                 if (codec->patch_ops.init)
2903                         codec->patch_ops.init(codec);
2904                 if (codec->core.regmap)
2905                         regcache_sync(codec->core.regmap);
2906         }
2907 
2908         if (codec->jackpoll_interval)
2909                 hda_jackpoll_work(&codec->jackpoll_work.work);
2910         else
2911                 snd_hda_jack_report_sync(codec);
2912         snd_hdac_leave_pm(&codec->core);
2913 }
2914 
2915 static int hda_codec_runtime_suspend(struct device *dev)
2916 {
2917         struct hda_codec *codec = dev_to_hda_codec(dev);
2918         struct hda_pcm *pcm;
2919         unsigned int state;
2920 
2921         cancel_delayed_work_sync(&codec->jackpoll_work);
2922         list_for_each_entry(pcm, &codec->pcm_list_head, list)
2923                 snd_pcm_suspend_all(pcm->pcm);
2924         state = hda_call_codec_suspend(codec);
2925         if (codec->link_down_at_suspend ||
2926             (codec_has_clkstop(codec) && codec_has_epss(codec) &&
2927              (state & AC_PWRST_CLK_STOP_OK)))
2928                 snd_hdac_codec_link_down(&codec->core);
2929         snd_hdac_link_power(&codec->core, false);
2930         return 0;
2931 }
2932 
2933 static int hda_codec_runtime_resume(struct device *dev)
2934 {
2935         struct hda_codec *codec = dev_to_hda_codec(dev);
2936 
2937         snd_hdac_link_power(&codec->core, true);
2938         snd_hdac_codec_link_up(&codec->core);
2939         hda_call_codec_resume(codec);
2940         pm_runtime_mark_last_busy(dev);
2941         return 0;
2942 }
2943 #endif /* CONFIG_PM */
2944 
2945 /* referred in hda_bind.c */
2946 const struct dev_pm_ops hda_codec_driver_pm = {
2947         SET_SYSTEM_SLEEP_PM_OPS(pm_runtime_force_suspend,
2948                                 pm_runtime_force_resume)
2949         SET_RUNTIME_PM_OPS(hda_codec_runtime_suspend, hda_codec_runtime_resume,
2950                            NULL)
2951 };
2952 
2953 /*
2954  * add standard channel maps if not specified
2955  */
2956 static int add_std_chmaps(struct hda_codec *codec)
2957 {
2958         struct hda_pcm *pcm;
2959         int str, err;
2960 
2961         list_for_each_entry(pcm, &codec->pcm_list_head, list) {
2962                 for (str = 0; str < 2; str++) {
2963                         struct hda_pcm_stream *hinfo = &pcm->stream[str];
2964                         struct snd_pcm_chmap *chmap;
2965                         const struct snd_pcm_chmap_elem *elem;
2966 
2967                         if (!pcm->pcm || pcm->own_chmap || !hinfo->substreams)
2968                                 continue;
2969                         elem = hinfo->chmap ? hinfo->chmap : snd_pcm_std_chmaps;
2970                         err = snd_pcm_add_chmap_ctls(pcm->pcm, str, elem,
2971                                                      hinfo->channels_max,
2972                                                      0, &chmap);
2973                         if (err < 0)
2974                                 return err;
2975                         chmap->channel_mask = SND_PCM_CHMAP_MASK_2468;
2976                 }
2977         }
2978         return 0;
2979 }
2980 
2981 /* default channel maps for 2.1 speakers;
2982  * since HD-audio supports only stereo, odd number channels are omitted
2983  */
2984 const struct snd_pcm_chmap_elem snd_pcm_2_1_chmaps[] = {
2985         { .channels = 2,
2986           .map = { SNDRV_CHMAP_FL, SNDRV_CHMAP_FR } },
2987         { .channels = 4,
2988           .map = { SNDRV_CHMAP_FL, SNDRV_CHMAP_FR,
2989                    SNDRV_CHMAP_LFE, SNDRV_CHMAP_LFE } },
2990         { }
2991 };
2992 EXPORT_SYMBOL_GPL(snd_pcm_2_1_chmaps);
2993 
2994 int snd_hda_codec_build_controls(struct hda_codec *codec)
2995 {
2996         int err = 0;
2997         hda_exec_init_verbs(codec);
2998         /* continue to initialize... */
2999         if (codec->patch_ops.init)
3000                 err = codec->patch_ops.init(codec);
3001         if (!err && codec->patch_ops.build_controls)
3002                 err = codec->patch_ops.build_controls(codec);
3003         if (err < 0)
3004                 return err;
3005 
3006         /* we create chmaps here instead of build_pcms */
3007         err = add_std_chmaps(codec);
3008         if (err < 0)
3009                 return err;
3010 
3011         if (codec->jackpoll_interval)
3012                 hda_jackpoll_work(&codec->jackpoll_work.work);
3013         else
3014                 snd_hda_jack_report_sync(codec); /* call at the last init point */
3015         sync_power_up_states(codec);
3016         return 0;
3017 }
3018 EXPORT_SYMBOL_GPL(snd_hda_codec_build_controls);
3019 
3020 /*
3021  * PCM stuff
3022  */
3023 static int hda_pcm_default_open_close(struct hda_pcm_stream *hinfo,
3024                                       struct hda_codec *codec,
3025                                       struct snd_pcm_substream *substream)
3026 {
3027         return 0;
3028 }
3029 
3030 static int hda_pcm_default_prepare(struct hda_pcm_stream *hinfo,
3031                                    struct hda_codec *codec,
3032                                    unsigned int stream_tag,
3033                                    unsigned int format,
3034                                    struct snd_pcm_substream *substream)
3035 {
3036         snd_hda_codec_setup_stream(codec, hinfo->nid, stream_tag, 0, format);
3037         return 0;
3038 }
3039 
3040 static int hda_pcm_default_cleanup(struct hda_pcm_stream *hinfo,
3041                                    struct hda_codec *codec,
3042                                    struct snd_pcm_substream *substream)
3043 {
3044         snd_hda_codec_cleanup_stream(codec, hinfo->nid);
3045         return 0;
3046 }
3047 
3048 static int set_pcm_default_values(struct hda_codec *codec,
3049                                   struct hda_pcm_stream *info)
3050 {
3051         int err;
3052 
3053         /* query support PCM information from the given NID */
3054         if (info->nid && (!info->rates || !info->formats)) {
3055                 err = snd_hda_query_supported_pcm(codec, info->nid,
3056                                 info->rates ? NULL : &info->rates,
3057                                 info->formats ? NULL : &info->formats,
3058                                 info->maxbps ? NULL : &info->maxbps);
3059                 if (err < 0)
3060                         return err;
3061         }
3062         if (info->ops.open == NULL)
3063                 info->ops.open = hda_pcm_default_open_close;
3064         if (info->ops.close == NULL)
3065                 info->ops.close = hda_pcm_default_open_close;
3066         if (info->ops.prepare == NULL) {
3067                 if (snd_BUG_ON(!info->nid))
3068                         return -EINVAL;
3069                 info->ops.prepare = hda_pcm_default_prepare;
3070         }
3071         if (info->ops.cleanup == NULL) {
3072                 if (snd_BUG_ON(!info->nid))
3073                         return -EINVAL;
3074                 info->ops.cleanup = hda_pcm_default_cleanup;
3075         }
3076         return 0;
3077 }
3078 
3079 /*
3080  * codec prepare/cleanup entries
3081  */
3082 /**
3083  * snd_hda_codec_prepare - Prepare a stream
3084  * @codec: the HDA codec
3085  * @hinfo: PCM information
3086  * @stream: stream tag to assign
3087  * @format: format id to assign
3088  * @substream: PCM substream to assign
3089  *
3090  * Calls the prepare callback set by the codec with the given arguments.
3091  * Clean up the inactive streams when successful.
3092  */
3093 int snd_hda_codec_prepare(struct hda_codec *codec,
3094                           struct hda_pcm_stream *hinfo,
3095                           unsigned int stream,
3096                           unsigned int format,
3097                           struct snd_pcm_substream *substream)
3098 {
3099         int ret;
3100         mutex_lock(&codec->bus->prepare_mutex);
3101         if (hinfo->ops.prepare)
3102                 ret = hinfo->ops.prepare(hinfo, codec, stream, format,
3103                                          substream);
3104         else
3105                 ret = -ENODEV;
3106         if (ret >= 0)
3107                 purify_inactive_streams(codec);
3108         mutex_unlock(&codec->bus->prepare_mutex);
3109         return ret;
3110 }
3111 EXPORT_SYMBOL_GPL(snd_hda_codec_prepare);
3112 
3113 /**
3114  * snd_hda_codec_cleanup - Prepare a stream
3115  * @codec: the HDA codec
3116  * @hinfo: PCM information
3117  * @substream: PCM substream
3118  *
3119  * Calls the cleanup callback set by the codec with the given arguments.
3120  */
3121 void snd_hda_codec_cleanup(struct hda_codec *codec,
3122                            struct hda_pcm_stream *hinfo,
3123                            struct snd_pcm_substream *substream)
3124 {
3125         mutex_lock(&codec->bus->prepare_mutex);
3126         if (hinfo->ops.cleanup)
3127                 hinfo->ops.cleanup(hinfo, codec, substream);
3128         mutex_unlock(&codec->bus->prepare_mutex);
3129 }
3130 EXPORT_SYMBOL_GPL(snd_hda_codec_cleanup);
3131 
3132 /* global */
3133 const char *snd_hda_pcm_type_name[HDA_PCM_NTYPES] = {
3134         "Audio", "SPDIF", "HDMI", "Modem"
3135 };
3136 
3137 /*
3138  * get the empty PCM device number to assign
3139  */
3140 static int get_empty_pcm_device(struct hda_bus *bus, unsigned int type)
3141 {
3142         /* audio device indices; not linear to keep compatibility */
3143         /* assigned to static slots up to dev#10; if more needed, assign
3144          * the later slot dynamically (when CONFIG_SND_DYNAMIC_MINORS=y)
3145          */
3146         static int audio_idx[HDA_PCM_NTYPES][5] = {
3147                 [HDA_PCM_TYPE_AUDIO] = { 0, 2, 4, 5, -1 },
3148                 [HDA_PCM_TYPE_SPDIF] = { 1, -1 },
3149                 [HDA_PCM_TYPE_HDMI]  = { 3, 7, 8, 9, -1 },
3150                 [HDA_PCM_TYPE_MODEM] = { 6, -1 },
3151         };
3152         int i;
3153 
3154         if (type >= HDA_PCM_NTYPES) {
3155                 dev_err(bus->card->dev, "Invalid PCM type %d\n", type);
3156                 return -EINVAL;
3157         }
3158 
3159         for (i = 0; audio_idx[type][i] >= 0; i++) {
3160 #ifndef CONFIG_SND_DYNAMIC_MINORS
3161                 if (audio_idx[type][i] >= 8)
3162                         break;
3163 #endif
3164                 if (!test_and_set_bit(audio_idx[type][i], bus->pcm_dev_bits))
3165                         return audio_idx[type][i];
3166         }
3167 
3168 #ifdef CONFIG_SND_DYNAMIC_MINORS
3169         /* non-fixed slots starting from 10 */
3170         for (i = 10; i < 32; i++) {
3171                 if (!test_and_set_bit(i, bus->pcm_dev_bits))
3172                         return i;
3173         }
3174 #endif
3175 
3176         dev_warn(bus->card->dev, "Too many %s devices\n",
3177                 snd_hda_pcm_type_name[type]);
3178 #ifndef CONFIG_SND_DYNAMIC_MINORS
3179         dev_warn(bus->card->dev,
3180                  "Consider building the kernel with CONFIG_SND_DYNAMIC_MINORS=y\n");
3181 #endif
3182         return -EAGAIN;
3183 }
3184 
3185 /* call build_pcms ops of the given codec and set up the default parameters */
3186 int snd_hda_codec_parse_pcms(struct hda_codec *codec)
3187 {
3188         struct hda_pcm *cpcm;
3189         int err;
3190 
3191         if (!list_empty(&codec->pcm_list_head))
3192                 return 0; /* already parsed */
3193 
3194         if (!codec->patch_ops.build_pcms)
3195                 return 0;
3196 
3197         err = codec->patch_ops.build_pcms(codec);
3198         if (err < 0) {
3199                 codec_err(codec, "cannot build PCMs for #%d (error %d)\n",
3200                           codec->core.addr, err);
3201                 return err;
3202         }
3203 
3204         list_for_each_entry(cpcm, &codec->pcm_list_head, list) {
3205                 int stream;
3206 
3207                 for (stream = 0; stream < 2; stream++) {
3208                         struct hda_pcm_stream *info = &cpcm->stream[stream];
3209 
3210                         if (!info->substreams)
3211                                 continue;
3212                         err = set_pcm_default_values(codec, info);
3213                         if (err < 0) {
3214                                 codec_warn(codec,
3215                                            "fail to setup default for PCM %s\n",
3216                                            cpcm->name);
3217                                 return err;
3218                         }
3219                 }
3220         }
3221 
3222         return 0;
3223 }
3224 EXPORT_SYMBOL_GPL(snd_hda_codec_parse_pcms);
3225 
3226 /* assign all PCMs of the given codec */
3227 int snd_hda_codec_build_pcms(struct hda_codec *codec)
3228 {
3229         struct hda_bus *bus = codec->bus;
3230         struct hda_pcm *cpcm;
3231         int dev, err;
3232 
3233         err = snd_hda_codec_parse_pcms(codec);
3234         if (err < 0)
3235                 return err;
3236 
3237         /* attach a new PCM streams */
3238         list_for_each_entry(cpcm, &codec->pcm_list_head, list) {
3239                 if (cpcm->pcm)
3240                         continue; /* already attached */
3241                 if (!cpcm->stream[0].substreams && !cpcm->stream[1].substreams)
3242                         continue; /* no substreams assigned */
3243 
3244                 dev = get_empty_pcm_device(bus, cpcm->pcm_type);
3245                 if (dev < 0) {
3246                         cpcm->device = SNDRV_PCM_INVALID_DEVICE;
3247                         continue; /* no fatal error */
3248                 }
3249                 cpcm->device = dev;
3250                 err =  snd_hda_attach_pcm_stream(bus, codec, cpcm);
3251                 if (err < 0) {
3252                         codec_err(codec,
3253                                   "cannot attach PCM stream %d for codec #%d\n",
3254                                   dev, codec->core.addr);
3255                         continue; /* no fatal error */
3256                 }
3257         }
3258 
3259         return 0;
3260 }
3261 
3262 /**
3263  * snd_hda_add_new_ctls - create controls from the array
3264  * @codec: the HDA codec
3265  * @knew: the array of struct snd_kcontrol_new
3266  *
3267  * This helper function creates and add new controls in the given array.
3268  * The array must be terminated with an empty entry as terminator.
3269  *
3270  * Returns 0 if successful, or a negative error code.
3271  */
3272 int snd_hda_add_new_ctls(struct hda_codec *codec,
3273                          const struct snd_kcontrol_new *knew)
3274 {
3275         int err;
3276 
3277         for (; knew->name; knew++) {
3278                 struct snd_kcontrol *kctl;
3279                 int addr = 0, idx = 0;
3280                 if (knew->iface == (__force snd_ctl_elem_iface_t)-1)
3281                         continue; /* skip this codec private value */
3282                 for (;;) {
3283                         kctl = snd_ctl_new1(knew, codec);
3284                         if (!kctl)
3285                                 return -ENOMEM;
3286                         if (addr > 0)
3287                                 kctl->id.device = addr;
3288                         if (idx > 0)
3289                                 kctl->id.index = idx;
3290                         err = snd_hda_ctl_add(codec, 0, kctl);
3291                         if (!err)
3292                                 break;
3293                         /* try first with another device index corresponding to
3294                          * the codec addr; if it still fails (or it's the
3295                          * primary codec), then try another control index
3296                          */
3297                         if (!addr && codec->core.addr)
3298                                 addr = codec->core.addr;
3299                         else if (!idx && !knew->index) {
3300                                 idx = find_empty_mixer_ctl_idx(codec,
3301                                                                knew->name, 0);
3302                                 if (idx <= 0)
3303                                         return err;
3304                         } else
3305                                 return err;
3306                 }
3307         }
3308         return 0;
3309 }
3310 EXPORT_SYMBOL_GPL(snd_hda_add_new_ctls);
3311 
3312 #ifdef CONFIG_PM
3313 static void codec_set_power_save(struct hda_codec *codec, int delay)
3314 {
3315         struct device *dev = hda_codec_dev(codec);
3316 
3317         if (delay == 0 && codec->auto_runtime_pm)
3318                 delay = 3000;
3319 
3320         if (delay > 0) {
3321                 pm_runtime_set_autosuspend_delay(dev, delay);
3322                 pm_runtime_use_autosuspend(dev);
3323                 pm_runtime_allow(dev);
3324                 if (!pm_runtime_suspended(dev))
3325                         pm_runtime_mark_last_busy(dev);
3326         } else {
3327                 pm_runtime_dont_use_autosuspend(dev);
3328                 pm_runtime_forbid(dev);
3329         }
3330 }
3331 
3332 /**
3333  * snd_hda_set_power_save - reprogram autosuspend for the given delay
3334  * @bus: HD-audio bus
3335  * @delay: autosuspend delay in msec, 0 = off
3336  *
3337  * Synchronize the runtime PM autosuspend state from the power_save option.
3338  */
3339 void snd_hda_set_power_save(struct hda_bus *bus, int delay)
3340 {
3341         struct hda_codec *c;
3342 
3343         list_for_each_codec(c, bus)
3344                 codec_set_power_save(c, delay);
3345 }
3346 EXPORT_SYMBOL_GPL(snd_hda_set_power_save);
3347 
3348 /**
3349  * snd_hda_check_amp_list_power - Check the amp list and update the power
3350  * @codec: HD-audio codec
3351  * @check: the object containing an AMP list and the status
3352  * @nid: NID to check / update
3353  *
3354  * Check whether the given NID is in the amp list.  If it's in the list,
3355  * check the current AMP status, and update the the power-status according
3356  * to the mute status.
3357  *
3358  * This function is supposed to be set or called from the check_power_status
3359  * patch ops.
3360  */
3361 int snd_hda_check_amp_list_power(struct hda_codec *codec,
3362                                  struct hda_loopback_check *check,
3363                                  hda_nid_t nid)
3364 {
3365         const struct hda_amp_list *p;
3366         int ch, v;
3367 
3368         if (!check->amplist)
3369                 return 0;
3370         for (p = check->amplist; p->nid; p++) {
3371                 if (p->nid == nid)
3372                         break;
3373         }
3374         if (!p->nid)
3375                 return 0; /* nothing changed */
3376 
3377         for (p = check->amplist; p->nid; p++) {
3378                 for (ch = 0; ch < 2; ch++) {
3379                         v = snd_hda_codec_amp_read(codec, p->nid, ch, p->dir,
3380                                                    p->idx);
3381                         if (!(v & HDA_AMP_MUTE) && v > 0) {
3382                                 if (!check->power_on) {
3383                                         check->power_on = 1;
3384                                         snd_hda_power_up_pm(codec);
3385                                 }
3386                                 return 1;
3387                         }
3388                 }
3389         }
3390         if (check->power_on) {
3391                 check->power_on = 0;
3392                 snd_hda_power_down_pm(codec);
3393         }
3394         return 0;
3395 }
3396 EXPORT_SYMBOL_GPL(snd_hda_check_amp_list_power);
3397 #endif
3398 
3399 /*
3400  * input MUX helper
3401  */
3402 
3403 /**
3404  * snd_hda_input_mux_info_info - Info callback helper for the input-mux enum
3405  * @imux: imux helper object
3406  * @uinfo: pointer to get/store the data
3407  */
3408 int snd_hda_input_mux_info(const struct hda_input_mux *imux,
3409                            struct snd_ctl_elem_info *uinfo)
3410 {
3411         unsigned int index;
3412 
3413         uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
3414         uinfo->count = 1;
3415         uinfo->value.enumerated.items = imux->num_items;
3416         if (!imux->num_items)
3417                 return 0;
3418         index = uinfo->value.enumerated.item;
3419         if (index >= imux->num_items)
3420                 index = imux->num_items - 1;
3421         strcpy(uinfo->value.enumerated.name, imux->items[index].label);
3422         return 0;
3423 }
3424 EXPORT_SYMBOL_GPL(snd_hda_input_mux_info);
3425 
3426 /**
3427  * snd_hda_input_mux_info_put - Put callback helper for the input-mux enum
3428  * @codec: the HDA codec
3429  * @imux: imux helper object
3430  * @ucontrol: pointer to get/store the data
3431  * @nid: input mux NID
3432  * @cur_val: pointer to get/store the current imux value
3433  */
3434 int snd_hda_input_mux_put(struct hda_codec *codec,
3435                           const struct hda_input_mux *imux,
3436                           struct snd_ctl_elem_value *ucontrol,
3437                           hda_nid_t nid,
3438                           unsigned int *cur_val)
3439 {
3440         unsigned int idx;
3441 
3442         if (!imux->num_items)
3443                 return 0;
3444         idx = ucontrol->value.enumerated.item[0];
3445         if (idx >= imux->num_items)
3446                 idx = imux->num_items - 1;
3447         if (*cur_val == idx)
3448                 return 0;
3449         snd_hda_codec_write_cache(codec, nid, 0, AC_VERB_SET_CONNECT_SEL,
3450                                   imux->items[idx].index);
3451         *cur_val = idx;
3452         return 1;
3453 }
3454 EXPORT_SYMBOL_GPL(snd_hda_input_mux_put);
3455 
3456 
3457 /**
3458  * snd_hda_enum_helper_info - Helper for simple enum ctls
3459  * @kcontrol: ctl element
3460  * @uinfo: pointer to get/store the data
3461  * @num_items: number of enum items
3462  * @texts: enum item string array
3463  *
3464  * process kcontrol info callback of a simple string enum array
3465  * when @num_items is 0 or @texts is NULL, assume a boolean enum array
3466  */
3467 int snd_hda_enum_helper_info(struct snd_kcontrol *kcontrol,
3468                              struct snd_ctl_elem_info *uinfo,
3469                              int num_items, const char * const *texts)
3470 {
3471         static const char * const texts_default[] = {
3472                 "Disabled", "Enabled"
3473         };
3474 
3475         if (!texts || !num_items) {
3476                 num_items = 2;
3477                 texts = texts_default;
3478         }
3479 
3480         return snd_ctl_enum_info(uinfo, 1, num_items, texts);
3481 }
3482 EXPORT_SYMBOL_GPL(snd_hda_enum_helper_info);
3483 
3484 /*
3485  * Multi-channel / digital-out PCM helper functions
3486  */
3487 
3488 /* setup SPDIF output stream */
3489 static void setup_dig_out_stream(struct hda_codec *codec, hda_nid_t nid,
3490                                  unsigned int stream_tag, unsigned int format)
3491 {
3492         struct hda_spdif_out *spdif;
3493         unsigned int curr_fmt;
3494         bool reset;
3495 
3496         spdif = snd_hda_spdif_out_of_nid(codec, nid);
3497         /* Add sanity check to pass klockwork check.
3498          * This should never happen.
3499          */
3500         if (WARN_ON(spdif == NULL))
3501                 return;
3502 
3503         curr_fmt = snd_hda_codec_read(codec, nid, 0,
3504                                       AC_VERB_GET_STREAM_FORMAT, 0);
3505         reset = codec->spdif_status_reset &&
3506                 (spdif->ctls & AC_DIG1_ENABLE) &&
3507                 curr_fmt != format;
3508 
3509         /* turn off SPDIF if needed; otherwise the IEC958 bits won't be
3510            updated */
3511         if (reset)
3512                 set_dig_out_convert(codec, nid,
3513                                     spdif->ctls & ~AC_DIG1_ENABLE & 0xff,
3514                                     -1);
3515         snd_hda_codec_setup_stream(codec, nid, stream_tag, 0, format);
3516         if (codec->slave_dig_outs) {
3517                 const hda_nid_t *d;
3518                 for (d = codec->slave_dig_outs; *d; d++)
3519                         snd_hda_codec_setup_stream(codec, *d, stream_tag, 0,
3520                                                    format);
3521         }
3522         /* turn on again (if needed) */
3523         if (reset)
3524                 set_dig_out_convert(codec, nid,
3525                                     spdif->ctls & 0xff, -1);
3526 }
3527 
3528 static void cleanup_dig_out_stream(struct hda_codec *codec, hda_nid_t nid)
3529 {
3530         snd_hda_codec_cleanup_stream(codec, nid);
3531         if (codec->slave_dig_outs) {
3532                 const hda_nid_t *d;
3533                 for (d = codec->slave_dig_outs; *d; d++)
3534                         snd_hda_codec_cleanup_stream(codec, *d);
3535         }
3536 }
3537 
3538 /**
3539  * snd_hda_multi_out_dig_open - open the digital out in the exclusive mode
3540  * @codec: the HDA codec
3541  * @mout: hda_multi_out object
3542  */
3543 int snd_hda_multi_out_dig_open(struct hda_codec *codec,
3544                                struct hda_multi_out *mout)
3545 {
3546         mutex_lock(&codec->spdif_mutex);
3547         if (mout->dig_out_used == HDA_DIG_ANALOG_DUP)
3548                 /* already opened as analog dup; reset it once */
3549                 cleanup_dig_out_stream(codec, mout->dig_out_nid);
3550         mout->dig_out_used = HDA_DIG_EXCLUSIVE;
3551         mutex_unlock(&codec->spdif_mutex);
3552         return 0;
3553 }
3554 EXPORT_SYMBOL_GPL(snd_hda_multi_out_dig_open);
3555 
3556 /**
3557  * snd_hda_multi_out_dig_prepare - prepare the digital out stream
3558  * @codec: the HDA codec
3559  * @mout: hda_multi_out object
3560  * @stream_tag: stream tag to assign
3561  * @format: format id to assign
3562  * @substream: PCM substream to assign
3563  */
3564 int snd_hda_multi_out_dig_prepare(struct hda_codec *codec,
3565                                   struct hda_multi_out *mout,
3566                                   unsigned int stream_tag,
3567                                   unsigned int format,
3568                                   struct snd_pcm_substream *substream)
3569 {
3570         mutex_lock(&codec->spdif_mutex);
3571         setup_dig_out_stream(codec, mout->dig_out_nid, stream_tag, format);
3572         mutex_unlock(&codec->spdif_mutex);
3573         return 0;
3574 }
3575 EXPORT_SYMBOL_GPL(snd_hda_multi_out_dig_prepare);
3576 
3577 /**
3578  * snd_hda_multi_out_dig_cleanup - clean-up the digital out stream
3579  * @codec: the HDA codec
3580  * @mout: hda_multi_out object
3581  */
3582 int snd_hda_multi_out_dig_cleanup(struct hda_codec *codec,
3583                                   struct hda_multi_out *mout)
3584 {
3585         mutex_lock(&codec->spdif_mutex);
3586         cleanup_dig_out_stream(codec, mout->dig_out_nid);
3587         mutex_unlock(&codec->spdif_mutex);
3588         return 0;
3589 }
3590 EXPORT_SYMBOL_GPL(snd_hda_multi_out_dig_cleanup);
3591 
3592 /**
3593  * snd_hda_multi_out_dig_close - release the digital out stream
3594  * @codec: the HDA codec
3595  * @mout: hda_multi_out object
3596  */
3597 int snd_hda_multi_out_dig_close(struct hda_codec *codec,
3598                                 struct hda_multi_out *mout)
3599 {
3600         mutex_lock(&codec->spdif_mutex);
3601         mout->dig_out_used = 0;
3602         mutex_unlock(&codec->spdif_mutex);
3603         return 0;
3604 }
3605 EXPORT_SYMBOL_GPL(snd_hda_multi_out_dig_close);
3606 
3607 /**
3608  * snd_hda_multi_out_analog_open - open analog outputs
3609  * @codec: the HDA codec
3610  * @mout: hda_multi_out object
3611  * @substream: PCM substream to assign
3612  * @hinfo: PCM information to assign
3613  *
3614  * Open analog outputs and set up the hw-constraints.
3615  * If the digital outputs can be opened as slave, open the digital
3616  * outputs, too.
3617  */
3618 int snd_hda_multi_out_analog_open(struct hda_codec *codec,
3619                                   struct hda_multi_out *mout,
3620                                   struct snd_pcm_substream *substream,
3621                                   struct hda_pcm_stream *hinfo)
3622 {
3623         struct snd_pcm_runtime *runtime = substream->runtime;
3624         runtime->hw.channels_max = mout->max_channels;
3625         if (mout->dig_out_nid) {
3626                 if (!mout->analog_rates) {
3627                         mout->analog_rates = hinfo->rates;
3628                         mout->analog_formats = hinfo->formats;
3629                         mout->analog_maxbps = hinfo->maxbps;
3630                 } else {
3631                         runtime->hw.rates = mout->analog_rates;
3632                         runtime->hw.formats = mout->analog_formats;
3633                         hinfo->maxbps = mout->analog_maxbps;
3634                 }
3635                 if (!mout->spdif_rates) {
3636                         snd_hda_query_supported_pcm(codec, mout->dig_out_nid,
3637                                                     &mout->spdif_rates,
3638                                                     &mout->spdif_formats,
3639                                                     &mout->spdif_maxbps);
3640                 }
3641                 mutex_lock(&codec->spdif_mutex);
3642                 if (mout->share_spdif) {
3643                         if ((runtime->hw.rates & mout->spdif_rates) &&
3644                             (runtime->hw.formats & mout->spdif_formats)) {
3645                                 runtime->hw.rates &= mout->spdif_rates;
3646                                 runtime->hw.formats &= mout->spdif_formats;
3647                                 if (mout->spdif_maxbps < hinfo->maxbps)
3648                                         hinfo->maxbps = mout->spdif_maxbps;
3649                         } else {
3650                                 mout->share_spdif = 0;
3651                                 /* FIXME: need notify? */
3652                         }
3653                 }
3654                 mutex_unlock(&codec->spdif_mutex);
3655         }
3656         return snd_pcm_hw_constraint_step(substream->runtime, 0,
3657                                           SNDRV_PCM_HW_PARAM_CHANNELS, 2);
3658 }
3659 EXPORT_SYMBOL_GPL(snd_hda_multi_out_analog_open);
3660 
3661 /**
3662  * snd_hda_multi_out_analog_prepare - Preapre the analog outputs.
3663  * @codec: the HDA codec
3664  * @mout: hda_multi_out object
3665  * @stream_tag: stream tag to assign
3666  * @format: format id to assign
3667  * @substream: PCM substream to assign
3668  *
3669  * Set up the i/o for analog out.
3670  * When the digital out is available, copy the front out to digital out, too.
3671  */
3672 int snd_hda_multi_out_analog_prepare(struct hda_codec *codec,
3673                                      struct hda_multi_out *mout,
3674                                      unsigned int stream_tag,
3675                                      unsigned int format,
3676                                      struct snd_pcm_substream *substream)
3677 {
3678         const hda_nid_t *nids = mout->dac_nids;
3679         int chs = substream->runtime->channels;
3680         struct hda_spdif_out *spdif;
3681         int i;
3682 
3683         mutex_lock(&codec->spdif_mutex);
3684         spdif = snd_hda_spdif_out_of_nid(codec, mout->dig_out_nid);
3685         if (mout->dig_out_nid && mout->share_spdif &&
3686             mout->dig_out_used != HDA_DIG_EXCLUSIVE) {
3687                 if (chs == 2 && spdif != NULL &&
3688                     snd_hda_is_supported_format(codec, mout->dig_out_nid,
3689                                                 format) &&
3690                     !(spdif->status & IEC958_AES0_NONAUDIO)) {
3691                         mout->dig_out_used = HDA_DIG_ANALOG_DUP;
3692                         setup_dig_out_stream(codec, mout->dig_out_nid,
3693                                              stream_tag, format);
3694                 } else {
3695                         mout->dig_out_used = 0;
3696                         cleanup_dig_out_stream(codec, mout->dig_out_nid);
3697                 }
3698         }
3699         mutex_unlock(&codec->spdif_mutex);
3700 
3701         /* front */
3702         snd_hda_codec_setup_stream(codec, nids[HDA_FRONT], stream_tag,
3703                                    0, format);
3704         if (!mout->no_share_stream &&
3705             mout->hp_nid && mout->hp_nid != nids[HDA_FRONT])
3706                 /* headphone out will just decode front left/right (stereo) */
3707                 snd_hda_codec_setup_stream(codec, mout->hp_nid, stream_tag,
3708                                            0, format);
3709         /* extra outputs copied from front */
3710         for (i = 0; i < ARRAY_SIZE(mout->hp_out_nid); i++)
3711                 if (!mout->no_share_stream && mout->hp_out_nid[i])
3712                         snd_hda_codec_setup_stream(codec,
3713                                                    mout->hp_out_nid[i],
3714                                                    stream_tag, 0, format);
3715 
3716         /* surrounds */
3717         for (i = 1; i < mout->num_dacs; i++) {
3718                 if (chs >= (i + 1) * 2) /* independent out */
3719                         snd_hda_codec_setup_stream(codec, nids[i], stream_tag,
3720                                                    i * 2, format);
3721                 else if (!mout->no_share_stream) /* copy front */
3722                         snd_hda_codec_setup_stream(codec, nids[i], stream_tag,
3723                                                    0, format);
3724         }
3725 
3726         /* extra surrounds */
3727         for (i = 0; i < ARRAY_SIZE(mout->extra_out_nid); i++) {
3728                 int ch = 0;
3729                 if (!mout->extra_out_nid[i])
3730                         break;
3731                 if (chs >= (i + 1) * 2)
3732                         ch = i * 2;
3733                 else if (!mout->no_share_stream)
3734                         break;
3735                 snd_hda_codec_setup_stream(codec, mout->extra_out_nid[i],
3736                                            stream_tag, ch, format);
3737         }
3738 
3739         return 0;
3740 }
3741 EXPORT_SYMBOL_GPL(snd_hda_multi_out_analog_prepare);
3742 
3743 /**
3744  * snd_hda_multi_out_analog_cleanup - clean up the setting for analog out
3745  * @codec: the HDA codec
3746  * @mout: hda_multi_out object
3747  */
3748 int snd_hda_multi_out_analog_cleanup(struct hda_codec *codec,
3749                                      struct hda_multi_out *mout)
3750 {
3751         const hda_nid_t *nids = mout->dac_nids;
3752         int i;
3753 
3754         for (i = 0; i < mout->num_dacs; i++)
3755                 snd_hda_codec_cleanup_stream(codec, nids[i]);
3756         if (mout->hp_nid)
3757                 snd_hda_codec_cleanup_stream(codec, mout->hp_nid);
3758         for (i = 0; i < ARRAY_SIZE(mout->hp_out_nid); i++)
3759                 if (mout->hp_out_nid[i])
3760                         snd_hda_codec_cleanup_stream(codec,
3761                                                      mout->hp_out_nid[i]);
3762         for (i = 0; i < ARRAY_SIZE(mout->extra_out_nid); i++)
3763                 if (mout->extra_out_nid[i])
3764                         snd_hda_codec_cleanup_stream(codec,
3765                                                      mout->extra_out_nid[i]);
3766         mutex_lock(&codec->spdif_mutex);
3767         if (mout->dig_out_nid && mout->dig_out_used == HDA_DIG_ANALOG_DUP) {
3768                 cleanup_dig_out_stream(codec, mout->dig_out_nid);
3769                 mout->dig_out_used = 0;
3770         }
3771         mutex_unlock(&codec->spdif_mutex);
3772         return 0;
3773 }
3774 EXPORT_SYMBOL_GPL(snd_hda_multi_out_analog_cleanup);
3775 
3776 /**
3777  * snd_hda_get_default_vref - Get the default (mic) VREF pin bits
3778  * @codec: the HDA codec
3779  * @pin: referred pin NID
3780  *
3781  * Guess the suitable VREF pin bits to be set as the pin-control value.
3782  * Note: the function doesn't set the AC_PINCTL_IN_EN bit.
3783  */
3784 unsigned int snd_hda_get_default_vref(struct hda_codec *codec, hda_nid_t pin)
3785 {
3786         unsigned int pincap;
3787         unsigned int oldval;
3788         oldval = snd_hda_codec_read(codec, pin, 0,
3789                                     AC_VERB_GET_PIN_WIDGET_CONTROL, 0);
3790         pincap = snd_hda_query_pin_caps(codec, pin);
3791         pincap = (pincap & AC_PINCAP_VREF) >> AC_PINCAP_VREF_SHIFT;
3792         /* Exception: if the default pin setup is vref50, we give it priority */
3793         if ((pincap & AC_PINCAP_VREF_80) && oldval != PIN_VREF50)
3794                 return AC_PINCTL_VREF_80;
3795         else if (pincap & AC_PINCAP_VREF_50)
3796                 return AC_PINCTL_VREF_50;
3797         else if (pincap & AC_PINCAP_VREF_100)
3798                 return AC_PINCTL_VREF_100;
3799         else if (pincap & AC_PINCAP_VREF_GRD)
3800                 return AC_PINCTL_VREF_GRD;
3801         return AC_PINCTL_VREF_HIZ;
3802 }
3803 EXPORT_SYMBOL_GPL(snd_hda_get_default_vref);
3804 
3805 /**
3806  * snd_hda_correct_pin_ctl - correct the pin ctl value for matching with the pin cap
3807  * @codec: the HDA codec
3808  * @pin: referred pin NID
3809  * @val: pin ctl value to audit
3810  */
3811 unsigned int snd_hda_correct_pin_ctl(struct hda_codec *codec,
3812                                      hda_nid_t pin, unsigned int val)
3813 {
3814         static unsigned int cap_lists[][2] = {
3815                 { AC_PINCTL_VREF_100, AC_PINCAP_VREF_100 },
3816                 { AC_PINCTL_VREF_80, AC_PINCAP_VREF_80 },
3817                 { AC_PINCTL_VREF_50, AC_PINCAP_VREF_50 },
3818                 { AC_PINCTL_VREF_GRD, AC_PINCAP_VREF_GRD },
3819         };
3820         unsigned int cap;
3821 
3822         if (!val)
3823                 return 0;
3824         cap = snd_hda_query_pin_caps(codec, pin);
3825         if (!cap)
3826                 return val; /* don't know what to do... */
3827 
3828         if (val & AC_PINCTL_OUT_EN) {
3829                 if (!(cap & AC_PINCAP_OUT))
3830                         val &= ~(AC_PINCTL_OUT_EN | AC_PINCTL_HP_EN);
3831                 else if ((val & AC_PINCTL_HP_EN) && !(cap & AC_PINCAP_HP_DRV))
3832                         val &= ~AC_PINCTL_HP_EN;
3833         }
3834 
3835         if (val & AC_PINCTL_IN_EN) {
3836                 if (!(cap & AC_PINCAP_IN))
3837                         val &= ~(AC_PINCTL_IN_EN | AC_PINCTL_VREFEN);
3838                 else {
3839                         unsigned int vcap, vref;
3840                         int i;
3841                         vcap = (cap & AC_PINCAP_VREF) >> AC_PINCAP_VREF_SHIFT;
3842                         vref = val & AC_PINCTL_VREFEN;
3843                         for (i = 0; i < ARRAY_SIZE(cap_lists); i++) {
3844                                 if (vref == cap_lists[i][0] &&
3845                                     !(vcap & cap_lists[i][1])) {
3846                                         if (i == ARRAY_SIZE(cap_lists) - 1)
3847                                                 vref = AC_PINCTL_VREF_HIZ;
3848                                         else
3849                                                 vref = cap_lists[i + 1][0];
3850                                 }
3851                         }
3852                         val &= ~AC_PINCTL_VREFEN;
3853                         val |= vref;
3854                 }
3855         }
3856 
3857         return val;
3858 }
3859 EXPORT_SYMBOL_GPL(snd_hda_correct_pin_ctl);
3860 
3861 /**
3862  * _snd_hda_pin_ctl - Helper to set pin ctl value
3863  * @codec: the HDA codec
3864  * @pin: referred pin NID
3865  * @val: pin control value to set
3866  * @cached: access over codec pinctl cache or direct write
3867  *
3868  * This function is a helper to set a pin ctl value more safely.
3869  * It corrects the pin ctl value via snd_hda_correct_pin_ctl(), stores the
3870  * value in pin target array via snd_hda_codec_set_pin_target(), then
3871  * actually writes the value via either snd_hda_codec_write_cache() or
3872  * snd_hda_codec_write() depending on @cached flag.
3873  */
3874 int _snd_hda_set_pin_ctl(struct hda_codec *codec, hda_nid_t pin,
3875                          unsigned int val, bool cached)
3876 {
3877         val = snd_hda_correct_pin_ctl(codec, pin, val);
3878         snd_hda_codec_set_pin_target(codec, pin, val);
3879         if (cached)
3880                 return snd_hda_codec_write_cache(codec, pin, 0,
3881                                 AC_VERB_SET_PIN_WIDGET_CONTROL, val);
3882         else
3883                 return snd_hda_codec_write(codec, pin, 0,
3884                                            AC_VERB_SET_PIN_WIDGET_CONTROL, val);
3885 }
3886 EXPORT_SYMBOL_GPL(_snd_hda_set_pin_ctl);
3887 
3888 /**
3889  * snd_hda_add_imux_item - Add an item to input_mux
3890  * @codec: the HDA codec
3891  * @imux: imux helper object
3892  * @label: the name of imux item to assign
3893  * @index: index number of imux item to assign
3894  * @type_idx: pointer to store the resultant label index
3895  *
3896  * When the same label is used already in the existing items, the number
3897  * suffix is appended to the label.  This label index number is stored
3898  * to type_idx when non-NULL pointer is given.
3899  */
3900 int snd_hda_add_imux_item(struct hda_codec *codec,
3901                           struct hda_input_mux *imux, const char *label,
3902                           int index, int *type_idx)
3903 {
3904         int i, label_idx = 0;
3905         if (imux->num_items >= HDA_MAX_NUM_INPUTS) {
3906                 codec_err(codec, "hda_codec: Too many imux items!\n");
3907                 return -EINVAL;
3908         }
3909         for (i = 0; i < imux->num_items; i++) {
3910                 if (!strncmp(label, imux->items[i].label, strlen(label)))
3911                         label_idx++;
3912         }
3913         if (type_idx)
3914                 *type_idx = label_idx;
3915         if (label_idx > 0)
3916                 snprintf(imux->items[imux->num_items].label,
3917                          sizeof(imux->items[imux->num_items].label),
3918                          "%s %d", label, label_idx);
3919         else
3920                 strlcpy(imux->items[imux->num_items].label, label,
3921                         sizeof(imux->items[imux->num_items].label));
3922         imux->items[imux->num_items].index = index;
3923         imux->num_items++;
3924         return 0;
3925 }
3926 EXPORT_SYMBOL_GPL(snd_hda_add_imux_item);
3927 
3928 /**
3929  * snd_hda_bus_reset_codecs - Reset the bus
3930  * @bus: HD-audio bus
3931  */
3932 void snd_hda_bus_reset_codecs(struct hda_bus *bus)
3933 {
3934         struct hda_codec *codec;
3935 
3936         list_for_each_codec(codec, bus) {
3937                 /* FIXME: maybe a better way needed for forced reset */
3938                 if (current_work() != &codec->jackpoll_work.work)
3939                         cancel_delayed_work_sync(&codec->jackpoll_work);
3940 #ifdef CONFIG_PM
3941                 if (hda_codec_is_power_on(codec)) {
3942                         hda_call_codec_suspend(codec);
3943                         hda_call_codec_resume(codec);
3944                 }
3945 #endif
3946         }
3947 }
3948 
3949 /**
3950  * snd_print_pcm_bits - Print the supported PCM fmt bits to the string buffer
3951  * @pcm: PCM caps bits
3952  * @buf: the string buffer to write
3953  * @buflen: the max buffer length
3954  *
3955  * used by hda_proc.c and hda_eld.c
3956  */
3957 void snd_print_pcm_bits(int pcm, char *buf, int buflen)
3958 {
3959         static unsigned int bits[] = { 8, 16, 20, 24, 32 };
3960         int i, j;
3961 
3962         for (i = 0, j = 0; i < ARRAY_SIZE(bits); i++)
3963                 if (pcm & (AC_SUPPCM_BITS_8 << i))
3964                         j += snprintf(buf + j, buflen - j,  " %d", bits[i]);
3965 
3966         buf[j] = '\0'; /* necessary when j == 0 */
3967 }
3968 EXPORT_SYMBOL_GPL(snd_print_pcm_bits);
3969 
3970 MODULE_DESCRIPTION("HDA codec core");
3971 MODULE_LICENSE("GPL");
3972 

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