2 * Universal Interface for Intel High Definition Audio Codec
4 * Copyright (c) 2004 Takashi Iwai <tiwai@suse.de>
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.
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.
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
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>
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"
38 #include <sound/hda_hwdep.h>
41 #define codec_in_pm(codec) atomic_read(&(codec)->core.in_pm)
42 #define hda_codec_is_power_on(codec) \
43 (!pm_runtime_suspended(hda_codec_dev(codec)))
45 #define codec_in_pm(codec) 0
46 #define hda_codec_is_power_on(codec) 1
49 #define codec_has_epss(codec) \
50 ((codec)->core.power_caps & AC_PWRST_EPSS)
51 #define codec_has_clkstop(codec) \
52 ((codec)->core.power_caps & AC_PWRST_CLKSTOP)
55 * Send and receive a verb - passed to exec_verb override for hdac_device
57 static int codec_exec_verb(struct hdac_device *dev, unsigned int cmd,
58 unsigned int flags, unsigned int *res)
60 struct hda_codec *codec = container_of(dev, struct hda_codec, core);
61 struct hda_bus *bus = codec->bus;
68 snd_hda_power_up_pm(codec);
69 mutex_lock(&bus->core.cmd_mutex);
70 if (flags & HDA_RW_NO_RESPONSE_FALLBACK)
71 bus->no_response_fallback = 1;
72 err = snd_hdac_bus_exec_verb_unlocked(&bus->core, codec->core.addr,
74 bus->no_response_fallback = 0;
75 mutex_unlock(&bus->core.cmd_mutex);
76 snd_hda_power_down_pm(codec);
77 if (!codec_in_pm(codec) && res && err == -EAGAIN) {
78 if (bus->response_reset) {
80 "resetting BUS due to fatal communication error\n");
81 snd_hda_bus_reset(bus);
85 /* clear reset-flag when the communication gets recovered */
86 if (!err || codec_in_pm(codec))
87 bus->response_reset = 0;
92 * snd_hda_sequence_write - sequence writes
93 * @codec: the HDA codec
94 * @seq: VERB array to send
96 * Send the commands sequentially from the given array.
97 * The array must be terminated with NID=0.
99 void snd_hda_sequence_write(struct hda_codec *codec, const struct hda_verb *seq)
101 for (; seq->nid; seq++)
102 snd_hda_codec_write(codec, seq->nid, 0, seq->verb, seq->param);
104 EXPORT_SYMBOL_GPL(snd_hda_sequence_write);
106 /* connection list element */
107 struct hda_conn_list {
108 struct list_head list;
114 /* look up the cached results */
115 static struct hda_conn_list *
116 lookup_conn_list(struct hda_codec *codec, hda_nid_t nid)
118 struct hda_conn_list *p;
119 list_for_each_entry(p, &codec->conn_list, list) {
126 static int add_conn_list(struct hda_codec *codec, hda_nid_t nid, int len,
127 const hda_nid_t *list)
129 struct hda_conn_list *p;
131 p = kmalloc(sizeof(*p) + len * sizeof(hda_nid_t), GFP_KERNEL);
136 memcpy(p->conns, list, len * sizeof(hda_nid_t));
137 list_add(&p->list, &codec->conn_list);
141 static void remove_conn_list(struct hda_codec *codec)
143 while (!list_empty(&codec->conn_list)) {
144 struct hda_conn_list *p;
145 p = list_first_entry(&codec->conn_list, typeof(*p), list);
151 /* read the connection and add to the cache */
152 static int read_and_add_raw_conns(struct hda_codec *codec, hda_nid_t nid)
155 hda_nid_t *result = list;
158 len = snd_hda_get_raw_connections(codec, nid, list, ARRAY_SIZE(list));
159 if (len == -ENOSPC) {
160 len = snd_hda_get_num_raw_conns(codec, nid);
161 result = kmalloc(sizeof(hda_nid_t) * len, GFP_KERNEL);
164 len = snd_hda_get_raw_connections(codec, nid, result, len);
167 len = snd_hda_override_conn_list(codec, nid, len, result);
174 * snd_hda_get_conn_list - get connection list
175 * @codec: the HDA codec
177 * @listp: the pointer to store NID list
179 * Parses the connection list of the given widget and stores the pointer
180 * to the list of NIDs.
182 * Returns the number of connections, or a negative error code.
184 * Note that the returned pointer isn't protected against the list
185 * modification. If snd_hda_override_conn_list() might be called
186 * concurrently, protect with a mutex appropriately.
188 int snd_hda_get_conn_list(struct hda_codec *codec, hda_nid_t nid,
189 const hda_nid_t **listp)
195 const struct hda_conn_list *p;
197 /* if the connection-list is already cached, read it */
198 p = lookup_conn_list(codec, nid);
204 if (snd_BUG_ON(added))
207 err = read_and_add_raw_conns(codec, nid);
213 EXPORT_SYMBOL_GPL(snd_hda_get_conn_list);
216 * snd_hda_get_connections - copy connection list
217 * @codec: the HDA codec
219 * @conn_list: connection list array; when NULL, checks only the size
220 * @max_conns: max. number of connections to store
222 * Parses the connection list of the given widget and stores the list
225 * Returns the number of connections, or a negative error code.
227 int snd_hda_get_connections(struct hda_codec *codec, hda_nid_t nid,
228 hda_nid_t *conn_list, int max_conns)
230 const hda_nid_t *list;
231 int len = snd_hda_get_conn_list(codec, nid, &list);
233 if (len > 0 && conn_list) {
234 if (len > max_conns) {
235 codec_err(codec, "Too many connections %d for NID 0x%x\n",
239 memcpy(conn_list, list, len * sizeof(hda_nid_t));
244 EXPORT_SYMBOL_GPL(snd_hda_get_connections);
247 * snd_hda_override_conn_list - add/modify the connection-list to cache
248 * @codec: the HDA codec
250 * @len: number of connection list entries
251 * @list: the list of connection entries
253 * Add or modify the given connection-list to the cache. If the corresponding
254 * cache already exists, invalidate it and append a new one.
256 * Returns zero or a negative error code.
258 int snd_hda_override_conn_list(struct hda_codec *codec, hda_nid_t nid, int len,
259 const hda_nid_t *list)
261 struct hda_conn_list *p;
263 p = lookup_conn_list(codec, nid);
269 return add_conn_list(codec, nid, len, list);
271 EXPORT_SYMBOL_GPL(snd_hda_override_conn_list);
274 * snd_hda_get_conn_index - get the connection index of the given NID
275 * @codec: the HDA codec
276 * @mux: NID containing the list
277 * @nid: NID to select
278 * @recursive: 1 when searching NID recursively, otherwise 0
280 * Parses the connection list of the widget @mux and checks whether the
281 * widget @nid is present. If it is, return the connection index.
282 * Otherwise it returns -1.
284 int snd_hda_get_conn_index(struct hda_codec *codec, hda_nid_t mux,
285 hda_nid_t nid, int recursive)
287 const hda_nid_t *conn;
290 nums = snd_hda_get_conn_list(codec, mux, &conn);
291 for (i = 0; i < nums; i++)
296 if (recursive > 10) {
297 codec_dbg(codec, "too deep connection for 0x%x\n", nid);
301 for (i = 0; i < nums; i++) {
302 unsigned int type = get_wcaps_type(get_wcaps(codec, conn[i]));
303 if (type == AC_WID_PIN || type == AC_WID_AUD_OUT)
305 if (snd_hda_get_conn_index(codec, conn[i], nid, recursive) >= 0)
310 EXPORT_SYMBOL_GPL(snd_hda_get_conn_index);
313 * snd_hda_get_num_devices - get DEVLIST_LEN parameter of the given widget
314 * @codec: the HDA codec
315 * @nid: NID of the pin to parse
317 * Get the device entry number on the given widget. This is a feature of
318 * DP MST audio. Each pin can have several device entries in it.
320 unsigned int snd_hda_get_num_devices(struct hda_codec *codec, hda_nid_t nid)
322 unsigned int wcaps = get_wcaps(codec, nid);
325 if (!codec->dp_mst || !(wcaps & AC_WCAP_DIGITAL) ||
326 get_wcaps_type(wcaps) != AC_WID_PIN)
329 parm = snd_hdac_read_parm_uncached(&codec->core, nid, AC_PAR_DEVLIST_LEN);
332 return parm & AC_DEV_LIST_LEN_MASK;
334 EXPORT_SYMBOL_GPL(snd_hda_get_num_devices);
337 * snd_hda_get_devices - copy device list without cache
338 * @codec: the HDA codec
339 * @nid: NID of the pin to parse
340 * @dev_list: device list array
341 * @max_devices: max. number of devices to store
343 * Copy the device list. This info is dynamic and so not cached.
344 * Currently called only from hda_proc.c, so not exported.
346 int snd_hda_get_devices(struct hda_codec *codec, hda_nid_t nid,
347 u8 *dev_list, int max_devices)
350 int i, dev_len, devices;
352 parm = snd_hda_get_num_devices(codec, nid);
353 if (!parm) /* not multi-stream capable */
357 dev_len = dev_len < max_devices ? dev_len : max_devices;
360 while (devices < dev_len) {
361 if (snd_hdac_read(&codec->core, nid,
362 AC_VERB_GET_DEVICE_LIST, devices, &parm))
365 for (i = 0; i < 8; i++) {
366 dev_list[devices] = (u8)parm;
369 if (devices >= dev_len)
377 * snd_hda_get_dev_select - get device entry select on the pin
378 * @codec: the HDA codec
379 * @nid: NID of the pin to get device entry select
381 * Get the devcie entry select on the pin. Return the device entry
382 * id selected on the pin. Return 0 means the first device entry
383 * is selected or MST is not supported.
385 int snd_hda_get_dev_select(struct hda_codec *codec, hda_nid_t nid)
387 /* not support dp_mst will always return 0, using first dev_entry */
391 return snd_hda_codec_read(codec, nid, 0, AC_VERB_GET_DEVICE_SEL, 0);
393 EXPORT_SYMBOL_GPL(snd_hda_get_dev_select);
396 * snd_hda_set_dev_select - set device entry select on the pin
397 * @codec: the HDA codec
398 * @nid: NID of the pin to set device entry select
399 * @dev_id: device entry id to be set
401 * Set the device entry select on the pin nid.
403 int snd_hda_set_dev_select(struct hda_codec *codec, hda_nid_t nid, int dev_id)
405 int ret, num_devices;
407 /* not support dp_mst will always return 0, using first dev_entry */
411 /* AC_PAR_DEVLIST_LEN is 0 based. */
412 num_devices = snd_hda_get_num_devices(codec, nid) + 1;
413 /* If Device List Length is 0 (num_device = 1),
414 * the pin is not multi stream capable.
415 * Do nothing in this case.
417 if (num_devices == 1)
420 /* Behavior of setting index being equal to or greater than
421 * Device List Length is not predictable
423 if (num_devices <= dev_id)
426 ret = snd_hda_codec_write(codec, nid, 0,
427 AC_VERB_SET_DEVICE_SEL, dev_id);
431 EXPORT_SYMBOL_GPL(snd_hda_set_dev_select);
434 * read widget caps for each widget and store in cache
436 static int read_widget_caps(struct hda_codec *codec, hda_nid_t fg_node)
441 codec->wcaps = kmalloc(codec->core.num_nodes * 4, GFP_KERNEL);
444 nid = codec->core.start_nid;
445 for (i = 0; i < codec->core.num_nodes; i++, nid++)
446 codec->wcaps[i] = snd_hdac_read_parm_uncached(&codec->core,
447 nid, AC_PAR_AUDIO_WIDGET_CAP);
451 /* read all pin default configurations and save codec->init_pins */
452 static int read_pin_defaults(struct hda_codec *codec)
456 for_each_hda_codec_node(nid, codec) {
457 struct hda_pincfg *pin;
458 unsigned int wcaps = get_wcaps(codec, nid);
459 unsigned int wid_type = get_wcaps_type(wcaps);
460 if (wid_type != AC_WID_PIN)
462 pin = snd_array_new(&codec->init_pins);
466 pin->cfg = snd_hda_codec_read(codec, nid, 0,
467 AC_VERB_GET_CONFIG_DEFAULT, 0);
469 * all device entries are the same widget control so far
470 * fixme: if any codec is different, need fix here
472 pin->ctrl = snd_hda_codec_read(codec, nid, 0,
473 AC_VERB_GET_PIN_WIDGET_CONTROL,
479 /* look up the given pin config list and return the item matching with NID */
480 static struct hda_pincfg *look_up_pincfg(struct hda_codec *codec,
481 struct snd_array *array,
485 for (i = 0; i < array->used; i++) {
486 struct hda_pincfg *pin = snd_array_elem(array, i);
493 /* set the current pin config value for the given NID.
494 * the value is cached, and read via snd_hda_codec_get_pincfg()
496 int snd_hda_add_pincfg(struct hda_codec *codec, struct snd_array *list,
497 hda_nid_t nid, unsigned int cfg)
499 struct hda_pincfg *pin;
501 /* the check below may be invalid when pins are added by a fixup
502 * dynamically (e.g. via snd_hda_codec_update_widgets()), so disabled
506 if (get_wcaps_type(get_wcaps(codec, nid)) != AC_WID_PIN)
510 pin = look_up_pincfg(codec, list, nid);
512 pin = snd_array_new(list);
522 * snd_hda_codec_set_pincfg - Override a pin default configuration
523 * @codec: the HDA codec
524 * @nid: NID to set the pin config
525 * @cfg: the pin default config value
527 * Override a pin default configuration value in the cache.
528 * This value can be read by snd_hda_codec_get_pincfg() in a higher
529 * priority than the real hardware value.
531 int snd_hda_codec_set_pincfg(struct hda_codec *codec,
532 hda_nid_t nid, unsigned int cfg)
534 return snd_hda_add_pincfg(codec, &codec->driver_pins, nid, cfg);
536 EXPORT_SYMBOL_GPL(snd_hda_codec_set_pincfg);
539 * snd_hda_codec_get_pincfg - Obtain a pin-default configuration
540 * @codec: the HDA codec
541 * @nid: NID to get the pin config
543 * Get the current pin config value of the given pin NID.
544 * If the pincfg value is cached or overridden via sysfs or driver,
545 * returns the cached value.
547 unsigned int snd_hda_codec_get_pincfg(struct hda_codec *codec, hda_nid_t nid)
549 struct hda_pincfg *pin;
551 #ifdef CONFIG_SND_HDA_RECONFIG
553 unsigned int cfg = 0;
554 mutex_lock(&codec->user_mutex);
555 pin = look_up_pincfg(codec, &codec->user_pins, nid);
558 mutex_unlock(&codec->user_mutex);
563 pin = look_up_pincfg(codec, &codec->driver_pins, nid);
566 pin = look_up_pincfg(codec, &codec->init_pins, nid);
571 EXPORT_SYMBOL_GPL(snd_hda_codec_get_pincfg);
574 * snd_hda_codec_set_pin_target - remember the current pinctl target value
575 * @codec: the HDA codec
577 * @val: assigned pinctl value
579 * This function stores the given value to a pinctl target value in the
580 * pincfg table. This isn't always as same as the actually written value
581 * but can be referred at any time via snd_hda_codec_get_pin_target().
583 int snd_hda_codec_set_pin_target(struct hda_codec *codec, hda_nid_t nid,
586 struct hda_pincfg *pin;
588 pin = look_up_pincfg(codec, &codec->init_pins, nid);
594 EXPORT_SYMBOL_GPL(snd_hda_codec_set_pin_target);
597 * snd_hda_codec_get_pin_target - return the current pinctl target value
598 * @codec: the HDA codec
601 int snd_hda_codec_get_pin_target(struct hda_codec *codec, hda_nid_t nid)
603 struct hda_pincfg *pin;
605 pin = look_up_pincfg(codec, &codec->init_pins, nid);
610 EXPORT_SYMBOL_GPL(snd_hda_codec_get_pin_target);
613 * snd_hda_shutup_pins - Shut up all pins
614 * @codec: the HDA codec
616 * Clear all pin controls to shup up before suspend for avoiding click noise.
617 * The controls aren't cached so that they can be resumed properly.
619 void snd_hda_shutup_pins(struct hda_codec *codec)
622 /* don't shut up pins when unloading the driver; otherwise it breaks
623 * the default pin setup at the next load of the driver
625 if (codec->bus->shutdown)
627 for (i = 0; i < codec->init_pins.used; i++) {
628 struct hda_pincfg *pin = snd_array_elem(&codec->init_pins, i);
629 /* use read here for syncing after issuing each verb */
630 snd_hda_codec_read(codec, pin->nid, 0,
631 AC_VERB_SET_PIN_WIDGET_CONTROL, 0);
633 codec->pins_shutup = 1;
635 EXPORT_SYMBOL_GPL(snd_hda_shutup_pins);
638 /* Restore the pin controls cleared previously via snd_hda_shutup_pins() */
639 static void restore_shutup_pins(struct hda_codec *codec)
642 if (!codec->pins_shutup)
644 if (codec->bus->shutdown)
646 for (i = 0; i < codec->init_pins.used; i++) {
647 struct hda_pincfg *pin = snd_array_elem(&codec->init_pins, i);
648 snd_hda_codec_write(codec, pin->nid, 0,
649 AC_VERB_SET_PIN_WIDGET_CONTROL,
652 codec->pins_shutup = 0;
656 static void hda_jackpoll_work(struct work_struct *work)
658 struct hda_codec *codec =
659 container_of(work, struct hda_codec, jackpoll_work.work);
661 snd_hda_jack_set_dirty_all(codec);
662 snd_hda_jack_poll_all(codec);
664 if (!codec->jackpoll_interval)
667 schedule_delayed_work(&codec->jackpoll_work,
668 codec->jackpoll_interval);
671 /* release all pincfg lists */
672 static void free_init_pincfgs(struct hda_codec *codec)
674 snd_array_free(&codec->driver_pins);
675 #ifdef CONFIG_SND_HDA_RECONFIG
676 snd_array_free(&codec->user_pins);
678 snd_array_free(&codec->init_pins);
682 * audio-converter setup caches
684 struct hda_cvt_setup {
689 unsigned char active; /* cvt is currently used */
690 unsigned char dirty; /* setups should be cleared */
693 /* get or create a cache entry for the given audio converter NID */
694 static struct hda_cvt_setup *
695 get_hda_cvt_setup(struct hda_codec *codec, hda_nid_t nid)
697 struct hda_cvt_setup *p;
700 for (i = 0; i < codec->cvt_setups.used; i++) {
701 p = snd_array_elem(&codec->cvt_setups, i);
705 p = snd_array_new(&codec->cvt_setups);
714 static void release_pcm(struct kref *kref)
716 struct hda_pcm *pcm = container_of(kref, struct hda_pcm, kref);
719 snd_device_free(pcm->codec->card, pcm->pcm);
720 clear_bit(pcm->device, pcm->codec->bus->pcm_dev_bits);
725 void snd_hda_codec_pcm_put(struct hda_pcm *pcm)
727 kref_put(&pcm->kref, release_pcm);
729 EXPORT_SYMBOL_GPL(snd_hda_codec_pcm_put);
731 struct hda_pcm *snd_hda_codec_pcm_new(struct hda_codec *codec,
732 const char *fmt, ...)
737 pcm = kzalloc(sizeof(*pcm), GFP_KERNEL);
742 kref_init(&pcm->kref);
744 pcm->name = kvasprintf(GFP_KERNEL, fmt, args);
751 list_add_tail(&pcm->list, &codec->pcm_list_head);
754 EXPORT_SYMBOL_GPL(snd_hda_codec_pcm_new);
759 static void codec_release_pcms(struct hda_codec *codec)
761 struct hda_pcm *pcm, *n;
763 list_for_each_entry_safe(pcm, n, &codec->pcm_list_head, list) {
764 list_del_init(&pcm->list);
766 snd_device_disconnect(codec->card, pcm->pcm);
767 snd_hda_codec_pcm_put(pcm);
771 void snd_hda_codec_cleanup_for_unbind(struct hda_codec *codec)
773 if (codec->registered) {
774 /* pm_runtime_put() is called in snd_hdac_device_exit() */
775 pm_runtime_get_noresume(hda_codec_dev(codec));
776 pm_runtime_disable(hda_codec_dev(codec));
777 codec->registered = 0;
780 cancel_delayed_work_sync(&codec->jackpoll_work);
781 if (!codec->in_freeing)
782 snd_hda_ctls_clear(codec);
783 codec_release_pcms(codec);
784 snd_hda_detach_beep_device(codec);
785 memset(&codec->patch_ops, 0, sizeof(codec->patch_ops));
786 snd_hda_jack_tbl_clear(codec);
787 codec->proc_widget_hook = NULL;
790 /* free only driver_pins so that init_pins + user_pins are restored */
791 snd_array_free(&codec->driver_pins);
792 snd_array_free(&codec->cvt_setups);
793 snd_array_free(&codec->spdif_out);
794 snd_array_free(&codec->verbs);
795 codec->preset = NULL;
796 codec->slave_dig_outs = NULL;
797 codec->spdif_status_reset = 0;
798 snd_array_free(&codec->mixers);
799 snd_array_free(&codec->nids);
800 remove_conn_list(codec);
801 snd_hdac_regmap_exit(&codec->core);
804 static unsigned int hda_set_power_state(struct hda_codec *codec,
805 unsigned int power_state);
807 /* also called from hda_bind.c */
808 void snd_hda_codec_register(struct hda_codec *codec)
810 if (codec->registered)
812 if (device_is_registered(hda_codec_dev(codec))) {
813 snd_hda_register_beep_device(codec);
814 snd_hdac_link_power(&codec->core, true);
815 pm_runtime_enable(hda_codec_dev(codec));
816 /* it was powered up in snd_hda_codec_new(), now all done */
817 snd_hda_power_down(codec);
818 codec->registered = 1;
822 static int snd_hda_codec_dev_register(struct snd_device *device)
824 snd_hda_codec_register(device->device_data);
828 static int snd_hda_codec_dev_disconnect(struct snd_device *device)
830 struct hda_codec *codec = device->device_data;
832 snd_hda_detach_beep_device(codec);
836 static int snd_hda_codec_dev_free(struct snd_device *device)
838 struct hda_codec *codec = device->device_data;
840 codec->in_freeing = 1;
841 snd_hdac_device_unregister(&codec->core);
842 snd_hdac_link_power(&codec->core, false);
843 put_device(hda_codec_dev(codec));
847 static void snd_hda_codec_dev_release(struct device *dev)
849 struct hda_codec *codec = dev_to_hda_codec(dev);
851 free_init_pincfgs(codec);
852 snd_hdac_device_exit(&codec->core);
853 snd_hda_sysfs_clear(codec);
854 kfree(codec->modelname);
860 * snd_hda_codec_new - create a HDA codec
861 * @bus: the bus to assign
862 * @codec_addr: the codec address
863 * @codecp: the pointer to store the generated codec
865 * Returns 0 if successful, or a negative error code.
867 int snd_hda_codec_new(struct hda_bus *bus, struct snd_card *card,
868 unsigned int codec_addr, struct hda_codec **codecp)
870 struct hda_codec *codec;
874 static struct snd_device_ops dev_ops = {
875 .dev_register = snd_hda_codec_dev_register,
876 .dev_disconnect = snd_hda_codec_dev_disconnect,
877 .dev_free = snd_hda_codec_dev_free,
880 if (snd_BUG_ON(!bus))
882 if (snd_BUG_ON(codec_addr > HDA_MAX_CODEC_ADDRESS))
885 codec = kzalloc(sizeof(*codec), GFP_KERNEL);
889 sprintf(component, "hdaudioC%dD%d", card->number, codec_addr);
890 err = snd_hdac_device_init(&codec->core, &bus->core, component,
897 codec->core.dev.release = snd_hda_codec_dev_release;
898 codec->core.type = HDA_DEV_LEGACY;
899 codec->core.exec_verb = codec_exec_verb;
903 codec->addr = codec_addr;
904 mutex_init(&codec->spdif_mutex);
905 mutex_init(&codec->control_mutex);
906 snd_array_init(&codec->mixers, sizeof(struct hda_nid_item), 32);
907 snd_array_init(&codec->nids, sizeof(struct hda_nid_item), 32);
908 snd_array_init(&codec->init_pins, sizeof(struct hda_pincfg), 16);
909 snd_array_init(&codec->driver_pins, sizeof(struct hda_pincfg), 16);
910 snd_array_init(&codec->cvt_setups, sizeof(struct hda_cvt_setup), 8);
911 snd_array_init(&codec->spdif_out, sizeof(struct hda_spdif_out), 16);
912 snd_array_init(&codec->jacktbl, sizeof(struct hda_jack_tbl), 16);
913 snd_array_init(&codec->verbs, sizeof(struct hda_verb *), 8);
914 INIT_LIST_HEAD(&codec->conn_list);
915 INIT_LIST_HEAD(&codec->pcm_list_head);
917 INIT_DELAYED_WORK(&codec->jackpoll_work, hda_jackpoll_work);
918 codec->depop_delay = -1;
919 codec->fixup_id = HDA_FIXUP_ID_NOT_SET;
922 codec->power_jiffies = jiffies;
925 snd_hda_sysfs_init(codec);
927 if (codec->bus->modelname) {
928 codec->modelname = kstrdup(codec->bus->modelname, GFP_KERNEL);
929 if (!codec->modelname) {
935 fg = codec->core.afg ? codec->core.afg : codec->core.mfg;
936 err = read_widget_caps(codec, fg);
939 err = read_pin_defaults(codec);
943 /* power-up all before initialization */
944 hda_set_power_state(codec, AC_PWRST_D0);
946 snd_hda_codec_proc_new(codec);
948 snd_hda_create_hwdep(codec);
950 sprintf(component, "HDA:%08x,%08x,%08x", codec->core.vendor_id,
951 codec->core.subsystem_id, codec->core.revision_id);
952 snd_component_add(card, component);
954 err = snd_device_new(card, SNDRV_DEV_CODEC, codec, &dev_ops);
963 put_device(hda_codec_dev(codec));
966 EXPORT_SYMBOL_GPL(snd_hda_codec_new);
969 * snd_hda_codec_update_widgets - Refresh widget caps and pin defaults
970 * @codec: the HDA codec
972 * Forcibly refresh the all widget caps and the init pin configurations of
975 int snd_hda_codec_update_widgets(struct hda_codec *codec)
980 err = snd_hdac_refresh_widgets(&codec->core, true);
984 /* Assume the function group node does not change,
985 * only the widget nodes may change.
988 fg = codec->core.afg ? codec->core.afg : codec->core.mfg;
989 err = read_widget_caps(codec, fg);
993 snd_array_free(&codec->init_pins);
994 err = read_pin_defaults(codec);
998 EXPORT_SYMBOL_GPL(snd_hda_codec_update_widgets);
1000 /* update the stream-id if changed */
1001 static void update_pcm_stream_id(struct hda_codec *codec,
1002 struct hda_cvt_setup *p, hda_nid_t nid,
1003 u32 stream_tag, int channel_id)
1005 unsigned int oldval, newval;
1007 if (p->stream_tag != stream_tag || p->channel_id != channel_id) {
1008 oldval = snd_hda_codec_read(codec, nid, 0, AC_VERB_GET_CONV, 0);
1009 newval = (stream_tag << 4) | channel_id;
1010 if (oldval != newval)
1011 snd_hda_codec_write(codec, nid, 0,
1012 AC_VERB_SET_CHANNEL_STREAMID,
1014 p->stream_tag = stream_tag;
1015 p->channel_id = channel_id;
1019 /* update the format-id if changed */
1020 static void update_pcm_format(struct hda_codec *codec, struct hda_cvt_setup *p,
1021 hda_nid_t nid, int format)
1023 unsigned int oldval;
1025 if (p->format_id != format) {
1026 oldval = snd_hda_codec_read(codec, nid, 0,
1027 AC_VERB_GET_STREAM_FORMAT, 0);
1028 if (oldval != format) {
1030 snd_hda_codec_write(codec, nid, 0,
1031 AC_VERB_SET_STREAM_FORMAT,
1034 p->format_id = format;
1039 * snd_hda_codec_setup_stream - set up the codec for streaming
1040 * @codec: the CODEC to set up
1041 * @nid: the NID to set up
1042 * @stream_tag: stream tag to pass, it's between 0x1 and 0xf.
1043 * @channel_id: channel id to pass, zero based.
1044 * @format: stream format.
1046 void snd_hda_codec_setup_stream(struct hda_codec *codec, hda_nid_t nid,
1048 int channel_id, int format)
1050 struct hda_codec *c;
1051 struct hda_cvt_setup *p;
1059 "hda_codec_setup_stream: NID=0x%x, stream=0x%x, channel=%d, format=0x%x\n",
1060 nid, stream_tag, channel_id, format);
1061 p = get_hda_cvt_setup(codec, nid);
1065 if (codec->patch_ops.stream_pm)
1066 codec->patch_ops.stream_pm(codec, nid, true);
1067 if (codec->pcm_format_first)
1068 update_pcm_format(codec, p, nid, format);
1069 update_pcm_stream_id(codec, p, nid, stream_tag, channel_id);
1070 if (!codec->pcm_format_first)
1071 update_pcm_format(codec, p, nid, format);
1076 /* make other inactive cvts with the same stream-tag dirty */
1077 type = get_wcaps_type(get_wcaps(codec, nid));
1078 list_for_each_codec(c, codec->bus) {
1079 for (i = 0; i < c->cvt_setups.used; i++) {
1080 p = snd_array_elem(&c->cvt_setups, i);
1081 if (!p->active && p->stream_tag == stream_tag &&
1082 get_wcaps_type(get_wcaps(c, p->nid)) == type)
1087 EXPORT_SYMBOL_GPL(snd_hda_codec_setup_stream);
1089 static void really_cleanup_stream(struct hda_codec *codec,
1090 struct hda_cvt_setup *q);
1093 * __snd_hda_codec_cleanup_stream - clean up the codec for closing
1094 * @codec: the CODEC to clean up
1095 * @nid: the NID to clean up
1096 * @do_now: really clean up the stream instead of clearing the active flag
1098 void __snd_hda_codec_cleanup_stream(struct hda_codec *codec, hda_nid_t nid,
1101 struct hda_cvt_setup *p;
1106 if (codec->no_sticky_stream)
1109 codec_dbg(codec, "hda_codec_cleanup_stream: NID=0x%x\n", nid);
1110 p = get_hda_cvt_setup(codec, nid);
1112 /* here we just clear the active flag when do_now isn't set;
1113 * actual clean-ups will be done later in
1114 * purify_inactive_streams() called from snd_hda_codec_prpapre()
1117 really_cleanup_stream(codec, p);
1122 EXPORT_SYMBOL_GPL(__snd_hda_codec_cleanup_stream);
1124 static void really_cleanup_stream(struct hda_codec *codec,
1125 struct hda_cvt_setup *q)
1127 hda_nid_t nid = q->nid;
1128 if (q->stream_tag || q->channel_id)
1129 snd_hda_codec_write(codec, nid, 0, AC_VERB_SET_CHANNEL_STREAMID, 0);
1131 snd_hda_codec_write(codec, nid, 0, AC_VERB_SET_STREAM_FORMAT, 0
1133 memset(q, 0, sizeof(*q));
1135 if (codec->patch_ops.stream_pm)
1136 codec->patch_ops.stream_pm(codec, nid, false);
1139 /* clean up the all conflicting obsolete streams */
1140 static void purify_inactive_streams(struct hda_codec *codec)
1142 struct hda_codec *c;
1145 list_for_each_codec(c, codec->bus) {
1146 for (i = 0; i < c->cvt_setups.used; i++) {
1147 struct hda_cvt_setup *p;
1148 p = snd_array_elem(&c->cvt_setups, i);
1150 really_cleanup_stream(c, p);
1156 /* clean up all streams; called from suspend */
1157 static void hda_cleanup_all_streams(struct hda_codec *codec)
1161 for (i = 0; i < codec->cvt_setups.used; i++) {
1162 struct hda_cvt_setup *p = snd_array_elem(&codec->cvt_setups, i);
1164 really_cleanup_stream(codec, p);
1170 * amp access functions
1174 * query_amp_caps - query AMP capabilities
1175 * @codec: the HD-auio codec
1176 * @nid: the NID to query
1177 * @direction: either #HDA_INPUT or #HDA_OUTPUT
1179 * Query AMP capabilities for the given widget and direction.
1180 * Returns the obtained capability bits.
1182 * When cap bits have been already read, this doesn't read again but
1183 * returns the cached value.
1185 u32 query_amp_caps(struct hda_codec *codec, hda_nid_t nid, int direction)
1187 if (!(get_wcaps(codec, nid) & AC_WCAP_AMP_OVRD))
1188 nid = codec->core.afg;
1189 return snd_hda_param_read(codec, nid,
1190 direction == HDA_OUTPUT ?
1191 AC_PAR_AMP_OUT_CAP : AC_PAR_AMP_IN_CAP);
1193 EXPORT_SYMBOL_GPL(query_amp_caps);
1196 * snd_hda_check_amp_caps - query AMP capabilities
1197 * @codec: the HD-audio codec
1198 * @nid: the NID to query
1199 * @dir: either #HDA_INPUT or #HDA_OUTPUT
1200 * @bits: bit mask to check the result
1202 * Check whether the widget has the given amp capability for the direction.
1204 bool snd_hda_check_amp_caps(struct hda_codec *codec, hda_nid_t nid,
1205 int dir, unsigned int bits)
1209 if (get_wcaps(codec, nid) & (1 << (dir + 1)))
1210 if (query_amp_caps(codec, nid, dir) & bits)
1214 EXPORT_SYMBOL_GPL(snd_hda_check_amp_caps);
1217 * snd_hda_override_amp_caps - Override the AMP capabilities
1218 * @codec: the CODEC to clean up
1219 * @nid: the NID to clean up
1220 * @dir: either #HDA_INPUT or #HDA_OUTPUT
1221 * @caps: the capability bits to set
1223 * Override the cached AMP caps bits value by the given one.
1224 * This function is useful if the driver needs to adjust the AMP ranges,
1225 * e.g. limit to 0dB, etc.
1227 * Returns zero if successful or a negative error code.
1229 int snd_hda_override_amp_caps(struct hda_codec *codec, hda_nid_t nid, int dir,
1234 snd_hda_override_wcaps(codec, nid,
1235 get_wcaps(codec, nid) | AC_WCAP_AMP_OVRD);
1236 parm = dir == HDA_OUTPUT ? AC_PAR_AMP_OUT_CAP : AC_PAR_AMP_IN_CAP;
1237 return snd_hdac_override_parm(&codec->core, nid, parm, caps);
1239 EXPORT_SYMBOL_GPL(snd_hda_override_amp_caps);
1242 * snd_hda_codec_amp_update - update the AMP mono value
1243 * @codec: HD-audio codec
1244 * @nid: NID to read the AMP value
1245 * @ch: channel to update (0 or 1)
1246 * @dir: #HDA_INPUT or #HDA_OUTPUT
1247 * @idx: the index value (only for input direction)
1248 * @mask: bit mask to set
1249 * @val: the bits value to set
1251 * Update the AMP values for the given channel, direction and index.
1253 int snd_hda_codec_amp_update(struct hda_codec *codec, hda_nid_t nid,
1254 int ch, int dir, int idx, int mask, int val)
1256 unsigned int cmd = snd_hdac_regmap_encode_amp(nid, ch, dir, idx);
1258 /* enable fake mute if no h/w mute but min=mute */
1259 if ((query_amp_caps(codec, nid, dir) &
1260 (AC_AMPCAP_MUTE | AC_AMPCAP_MIN_MUTE)) == AC_AMPCAP_MIN_MUTE)
1261 cmd |= AC_AMP_FAKE_MUTE;
1262 return snd_hdac_regmap_update_raw(&codec->core, cmd, mask, val);
1264 EXPORT_SYMBOL_GPL(snd_hda_codec_amp_update);
1267 * snd_hda_codec_amp_stereo - update the AMP stereo values
1268 * @codec: HD-audio codec
1269 * @nid: NID to read the AMP value
1270 * @direction: #HDA_INPUT or #HDA_OUTPUT
1271 * @idx: the index value (only for input direction)
1272 * @mask: bit mask to set
1273 * @val: the bits value to set
1275 * Update the AMP values like snd_hda_codec_amp_update(), but for a
1276 * stereo widget with the same mask and value.
1278 int snd_hda_codec_amp_stereo(struct hda_codec *codec, hda_nid_t nid,
1279 int direction, int idx, int mask, int val)
1283 if (snd_BUG_ON(mask & ~0xff))
1285 for (ch = 0; ch < 2; ch++)
1286 ret |= snd_hda_codec_amp_update(codec, nid, ch, direction,
1290 EXPORT_SYMBOL_GPL(snd_hda_codec_amp_stereo);
1293 * snd_hda_codec_amp_init - initialize the AMP value
1294 * @codec: the HDA codec
1295 * @nid: NID to read the AMP value
1296 * @ch: channel (left=0 or right=1)
1297 * @dir: #HDA_INPUT or #HDA_OUTPUT
1298 * @idx: the index value (only for input direction)
1299 * @mask: bit mask to set
1300 * @val: the bits value to set
1302 * Works like snd_hda_codec_amp_update() but it writes the value only at
1303 * the first access. If the amp was already initialized / updated beforehand,
1304 * this does nothing.
1306 int snd_hda_codec_amp_init(struct hda_codec *codec, hda_nid_t nid, int ch,
1307 int dir, int idx, int mask, int val)
1311 if (!codec->core.regmap)
1313 regcache_cache_only(codec->core.regmap, true);
1314 orig = snd_hda_codec_amp_read(codec, nid, ch, dir, idx);
1315 regcache_cache_only(codec->core.regmap, false);
1318 return snd_hda_codec_amp_update(codec, nid, ch, dir, idx, mask, val);
1320 EXPORT_SYMBOL_GPL(snd_hda_codec_amp_init);
1323 * snd_hda_codec_amp_init_stereo - initialize the stereo AMP value
1324 * @codec: the HDA codec
1325 * @nid: NID to read the AMP value
1326 * @dir: #HDA_INPUT or #HDA_OUTPUT
1327 * @idx: the index value (only for input direction)
1328 * @mask: bit mask to set
1329 * @val: the bits value to set
1331 * Call snd_hda_codec_amp_init() for both stereo channels.
1333 int snd_hda_codec_amp_init_stereo(struct hda_codec *codec, hda_nid_t nid,
1334 int dir, int idx, int mask, int val)
1338 if (snd_BUG_ON(mask & ~0xff))
1340 for (ch = 0; ch < 2; ch++)
1341 ret |= snd_hda_codec_amp_init(codec, nid, ch, dir,
1345 EXPORT_SYMBOL_GPL(snd_hda_codec_amp_init_stereo);
1347 static u32 get_amp_max_value(struct hda_codec *codec, hda_nid_t nid, int dir,
1350 u32 caps = query_amp_caps(codec, nid, dir);
1352 caps = (caps & AC_AMPCAP_NUM_STEPS) >> AC_AMPCAP_NUM_STEPS_SHIFT;
1359 * snd_hda_mixer_amp_volume_info - Info callback for a standard AMP mixer
1360 * @kcontrol: referred ctl element
1361 * @uinfo: pointer to get/store the data
1363 * The control element is supposed to have the private_value field
1364 * set up via HDA_COMPOSE_AMP_VAL*() or related macros.
1366 int snd_hda_mixer_amp_volume_info(struct snd_kcontrol *kcontrol,
1367 struct snd_ctl_elem_info *uinfo)
1369 struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
1370 u16 nid = get_amp_nid(kcontrol);
1371 u8 chs = get_amp_channels(kcontrol);
1372 int dir = get_amp_direction(kcontrol);
1373 unsigned int ofs = get_amp_offset(kcontrol);
1375 uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
1376 uinfo->count = chs == 3 ? 2 : 1;
1377 uinfo->value.integer.min = 0;
1378 uinfo->value.integer.max = get_amp_max_value(codec, nid, dir, ofs);
1379 if (!uinfo->value.integer.max) {
1381 "num_steps = 0 for NID=0x%x (ctl = %s)\n",
1382 nid, kcontrol->id.name);
1387 EXPORT_SYMBOL_GPL(snd_hda_mixer_amp_volume_info);
1390 static inline unsigned int
1391 read_amp_value(struct hda_codec *codec, hda_nid_t nid,
1392 int ch, int dir, int idx, unsigned int ofs)
1395 val = snd_hda_codec_amp_read(codec, nid, ch, dir, idx);
1396 val &= HDA_AMP_VOLMASK;
1405 update_amp_value(struct hda_codec *codec, hda_nid_t nid,
1406 int ch, int dir, int idx, unsigned int ofs,
1409 unsigned int maxval;
1413 /* ofs = 0: raw max value */
1414 maxval = get_amp_max_value(codec, nid, dir, 0);
1417 return snd_hda_codec_amp_update(codec, nid, ch, dir, idx,
1418 HDA_AMP_VOLMASK, val);
1422 * snd_hda_mixer_amp_volume_get - Get callback for a standard AMP mixer volume
1423 * @kcontrol: ctl element
1424 * @ucontrol: pointer to get/store the data
1426 * The control element is supposed to have the private_value field
1427 * set up via HDA_COMPOSE_AMP_VAL*() or related macros.
1429 int snd_hda_mixer_amp_volume_get(struct snd_kcontrol *kcontrol,
1430 struct snd_ctl_elem_value *ucontrol)
1432 struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
1433 hda_nid_t nid = get_amp_nid(kcontrol);
1434 int chs = get_amp_channels(kcontrol);
1435 int dir = get_amp_direction(kcontrol);
1436 int idx = get_amp_index(kcontrol);
1437 unsigned int ofs = get_amp_offset(kcontrol);
1438 long *valp = ucontrol->value.integer.value;
1441 *valp++ = read_amp_value(codec, nid, 0, dir, idx, ofs);
1443 *valp = read_amp_value(codec, nid, 1, dir, idx, ofs);
1446 EXPORT_SYMBOL_GPL(snd_hda_mixer_amp_volume_get);
1449 * snd_hda_mixer_amp_volume_put - Put callback for a standard AMP mixer volume
1450 * @kcontrol: ctl element
1451 * @ucontrol: pointer to get/store the data
1453 * The control element is supposed to have the private_value field
1454 * set up via HDA_COMPOSE_AMP_VAL*() or related macros.
1456 int snd_hda_mixer_amp_volume_put(struct snd_kcontrol *kcontrol,
1457 struct snd_ctl_elem_value *ucontrol)
1459 struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
1460 hda_nid_t nid = get_amp_nid(kcontrol);
1461 int chs = get_amp_channels(kcontrol);
1462 int dir = get_amp_direction(kcontrol);
1463 int idx = get_amp_index(kcontrol);
1464 unsigned int ofs = get_amp_offset(kcontrol);
1465 long *valp = ucontrol->value.integer.value;
1469 change = update_amp_value(codec, nid, 0, dir, idx, ofs, *valp);
1473 change |= update_amp_value(codec, nid, 1, dir, idx, ofs, *valp);
1476 EXPORT_SYMBOL_GPL(snd_hda_mixer_amp_volume_put);
1478 /* inquiry the amp caps and convert to TLV */
1479 static void get_ctl_amp_tlv(struct snd_kcontrol *kcontrol, unsigned int *tlv)
1481 struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
1482 hda_nid_t nid = get_amp_nid(kcontrol);
1483 int dir = get_amp_direction(kcontrol);
1484 unsigned int ofs = get_amp_offset(kcontrol);
1485 bool min_mute = get_amp_min_mute(kcontrol);
1486 u32 caps, val1, val2;
1488 caps = query_amp_caps(codec, nid, dir);
1489 val2 = (caps & AC_AMPCAP_STEP_SIZE) >> AC_AMPCAP_STEP_SIZE_SHIFT;
1490 val2 = (val2 + 1) * 25;
1491 val1 = -((caps & AC_AMPCAP_OFFSET) >> AC_AMPCAP_OFFSET_SHIFT);
1493 val1 = ((int)val1) * ((int)val2);
1494 if (min_mute || (caps & AC_AMPCAP_MIN_MUTE))
1495 val2 |= TLV_DB_SCALE_MUTE;
1496 tlv[0] = SNDRV_CTL_TLVT_DB_SCALE;
1497 tlv[1] = 2 * sizeof(unsigned int);
1503 * snd_hda_mixer_amp_tlv - TLV callback for a standard AMP mixer volume
1504 * @kcontrol: ctl element
1505 * @op_flag: operation flag
1506 * @size: byte size of input TLV
1509 * The control element is supposed to have the private_value field
1510 * set up via HDA_COMPOSE_AMP_VAL*() or related macros.
1512 int snd_hda_mixer_amp_tlv(struct snd_kcontrol *kcontrol, int op_flag,
1513 unsigned int size, unsigned int __user *_tlv)
1515 unsigned int tlv[4];
1517 if (size < 4 * sizeof(unsigned int))
1519 get_ctl_amp_tlv(kcontrol, tlv);
1520 if (copy_to_user(_tlv, tlv, sizeof(tlv)))
1524 EXPORT_SYMBOL_GPL(snd_hda_mixer_amp_tlv);
1527 * snd_hda_set_vmaster_tlv - Set TLV for a virtual master control
1528 * @codec: HD-audio codec
1529 * @nid: NID of a reference widget
1530 * @dir: #HDA_INPUT or #HDA_OUTPUT
1531 * @tlv: TLV data to be stored, at least 4 elements
1533 * Set (static) TLV data for a virtual master volume using the AMP caps
1534 * obtained from the reference NID.
1535 * The volume range is recalculated as if the max volume is 0dB.
1537 void snd_hda_set_vmaster_tlv(struct hda_codec *codec, hda_nid_t nid, int dir,
1543 caps = query_amp_caps(codec, nid, dir);
1544 nums = (caps & AC_AMPCAP_NUM_STEPS) >> AC_AMPCAP_NUM_STEPS_SHIFT;
1545 step = (caps & AC_AMPCAP_STEP_SIZE) >> AC_AMPCAP_STEP_SIZE_SHIFT;
1546 step = (step + 1) * 25;
1547 tlv[0] = SNDRV_CTL_TLVT_DB_SCALE;
1548 tlv[1] = 2 * sizeof(unsigned int);
1549 tlv[2] = -nums * step;
1552 EXPORT_SYMBOL_GPL(snd_hda_set_vmaster_tlv);
1554 /* find a mixer control element with the given name */
1555 static struct snd_kcontrol *
1556 find_mixer_ctl(struct hda_codec *codec, const char *name, int dev, int idx)
1558 struct snd_ctl_elem_id id;
1559 memset(&id, 0, sizeof(id));
1560 id.iface = SNDRV_CTL_ELEM_IFACE_MIXER;
1563 if (snd_BUG_ON(strlen(name) >= sizeof(id.name)))
1565 strcpy(id.name, name);
1566 return snd_ctl_find_id(codec->card, &id);
1570 * snd_hda_find_mixer_ctl - Find a mixer control element with the given name
1571 * @codec: HD-audio codec
1572 * @name: ctl id name string
1574 * Get the control element with the given id string and IFACE_MIXER.
1576 struct snd_kcontrol *snd_hda_find_mixer_ctl(struct hda_codec *codec,
1579 return find_mixer_ctl(codec, name, 0, 0);
1581 EXPORT_SYMBOL_GPL(snd_hda_find_mixer_ctl);
1583 static int find_empty_mixer_ctl_idx(struct hda_codec *codec, const char *name,
1587 /* 16 ctlrs should be large enough */
1588 for (i = 0, idx = start_idx; i < 16; i++, idx++) {
1589 if (!find_mixer_ctl(codec, name, 0, idx))
1596 * snd_hda_ctl_add - Add a control element and assign to the codec
1597 * @codec: HD-audio codec
1598 * @nid: corresponding NID (optional)
1599 * @kctl: the control element to assign
1601 * Add the given control element to an array inside the codec instance.
1602 * All control elements belonging to a codec are supposed to be added
1603 * by this function so that a proper clean-up works at the free or
1604 * reconfiguration time.
1606 * If non-zero @nid is passed, the NID is assigned to the control element.
1607 * The assignment is shown in the codec proc file.
1609 * snd_hda_ctl_add() checks the control subdev id field whether
1610 * #HDA_SUBDEV_NID_FLAG bit is set. If set (and @nid is zero), the lower
1611 * bits value is taken as the NID to assign. The #HDA_NID_ITEM_AMP bit
1612 * specifies if kctl->private_value is a HDA amplifier value.
1614 int snd_hda_ctl_add(struct hda_codec *codec, hda_nid_t nid,
1615 struct snd_kcontrol *kctl)
1618 unsigned short flags = 0;
1619 struct hda_nid_item *item;
1621 if (kctl->id.subdevice & HDA_SUBDEV_AMP_FLAG) {
1622 flags |= HDA_NID_ITEM_AMP;
1624 nid = get_amp_nid_(kctl->private_value);
1626 if ((kctl->id.subdevice & HDA_SUBDEV_NID_FLAG) != 0 && nid == 0)
1627 nid = kctl->id.subdevice & 0xffff;
1628 if (kctl->id.subdevice & (HDA_SUBDEV_NID_FLAG|HDA_SUBDEV_AMP_FLAG))
1629 kctl->id.subdevice = 0;
1630 err = snd_ctl_add(codec->card, kctl);
1633 item = snd_array_new(&codec->mixers);
1638 item->flags = flags;
1641 EXPORT_SYMBOL_GPL(snd_hda_ctl_add);
1644 * snd_hda_add_nid - Assign a NID to a control element
1645 * @codec: HD-audio codec
1646 * @nid: corresponding NID (optional)
1647 * @kctl: the control element to assign
1648 * @index: index to kctl
1650 * Add the given control element to an array inside the codec instance.
1651 * This function is used when #snd_hda_ctl_add cannot be used for 1:1
1652 * NID:KCTL mapping - for example "Capture Source" selector.
1654 int snd_hda_add_nid(struct hda_codec *codec, struct snd_kcontrol *kctl,
1655 unsigned int index, hda_nid_t nid)
1657 struct hda_nid_item *item;
1660 item = snd_array_new(&codec->nids);
1664 item->index = index;
1668 codec_err(codec, "no NID for mapping control %s:%d:%d\n",
1669 kctl->id.name, kctl->id.index, index);
1672 EXPORT_SYMBOL_GPL(snd_hda_add_nid);
1675 * snd_hda_ctls_clear - Clear all controls assigned to the given codec
1676 * @codec: HD-audio codec
1678 void snd_hda_ctls_clear(struct hda_codec *codec)
1681 struct hda_nid_item *items = codec->mixers.list;
1682 for (i = 0; i < codec->mixers.used; i++)
1683 snd_ctl_remove(codec->card, items[i].kctl);
1684 snd_array_free(&codec->mixers);
1685 snd_array_free(&codec->nids);
1689 * snd_hda_lock_devices - pseudo device locking
1692 * toggle card->shutdown to allow/disallow the device access (as a hack)
1694 int snd_hda_lock_devices(struct hda_bus *bus)
1696 struct snd_card *card = bus->card;
1697 struct hda_codec *codec;
1699 spin_lock(&card->files_lock);
1703 if (!list_empty(&card->ctl_files))
1706 list_for_each_codec(codec, bus) {
1707 struct hda_pcm *cpcm;
1708 list_for_each_entry(cpcm, &codec->pcm_list_head, list) {
1711 if (cpcm->pcm->streams[0].substream_opened ||
1712 cpcm->pcm->streams[1].substream_opened)
1716 spin_unlock(&card->files_lock);
1722 spin_unlock(&card->files_lock);
1725 EXPORT_SYMBOL_GPL(snd_hda_lock_devices);
1728 * snd_hda_unlock_devices - pseudo device unlocking
1731 void snd_hda_unlock_devices(struct hda_bus *bus)
1733 struct snd_card *card = bus->card;
1735 spin_lock(&card->files_lock);
1737 spin_unlock(&card->files_lock);
1739 EXPORT_SYMBOL_GPL(snd_hda_unlock_devices);
1742 * snd_hda_codec_reset - Clear all objects assigned to the codec
1743 * @codec: HD-audio codec
1745 * This frees the all PCM and control elements assigned to the codec, and
1746 * clears the caches and restores the pin default configurations.
1748 * When a device is being used, it returns -EBSY. If successfully freed,
1751 int snd_hda_codec_reset(struct hda_codec *codec)
1753 struct hda_bus *bus = codec->bus;
1755 if (snd_hda_lock_devices(bus) < 0)
1758 /* OK, let it free */
1759 snd_hdac_device_unregister(&codec->core);
1761 /* allow device access again */
1762 snd_hda_unlock_devices(bus);
1766 typedef int (*map_slave_func_t)(struct hda_codec *, void *, struct snd_kcontrol *);
1768 /* apply the function to all matching slave ctls in the mixer list */
1769 static int map_slaves(struct hda_codec *codec, const char * const *slaves,
1770 const char *suffix, map_slave_func_t func, void *data)
1772 struct hda_nid_item *items;
1773 const char * const *s;
1776 items = codec->mixers.list;
1777 for (i = 0; i < codec->mixers.used; i++) {
1778 struct snd_kcontrol *sctl = items[i].kctl;
1779 if (!sctl || sctl->id.iface != SNDRV_CTL_ELEM_IFACE_MIXER)
1781 for (s = slaves; *s; s++) {
1782 char tmpname[sizeof(sctl->id.name)];
1783 const char *name = *s;
1785 snprintf(tmpname, sizeof(tmpname), "%s %s",
1789 if (!strcmp(sctl->id.name, name)) {
1790 err = func(codec, data, sctl);
1800 static int check_slave_present(struct hda_codec *codec,
1801 void *data, struct snd_kcontrol *sctl)
1806 /* call kctl->put with the given value(s) */
1807 static int put_kctl_with_value(struct snd_kcontrol *kctl, int val)
1809 struct snd_ctl_elem_value *ucontrol;
1810 ucontrol = kzalloc(sizeof(*ucontrol), GFP_KERNEL);
1813 ucontrol->value.integer.value[0] = val;
1814 ucontrol->value.integer.value[1] = val;
1815 kctl->put(kctl, ucontrol);
1820 struct slave_init_arg {
1821 struct hda_codec *codec;
1825 /* initialize the slave volume with 0dB via snd_ctl_apply_vmaster_slaves() */
1826 static int init_slave_0dB(struct snd_kcontrol *kctl, void *_arg)
1828 struct slave_init_arg *arg = _arg;
1830 const int *tlv = NULL;
1834 if (kctl->vd[0].access & SNDRV_CTL_ELEM_ACCESS_TLV_CALLBACK) {
1835 if (kctl->tlv.c != snd_hda_mixer_amp_tlv) {
1836 codec_err(arg->codec,
1837 "Unexpected TLV callback for slave %s:%d\n",
1838 kctl->id.name, kctl->id.index);
1839 return 0; /* ignore */
1841 get_ctl_amp_tlv(kctl, _tlv);
1843 } else if (kctl->vd[0].access & SNDRV_CTL_ELEM_ACCESS_TLV_READ)
1846 if (!tlv || tlv[0] != SNDRV_CTL_TLVT_DB_SCALE)
1850 step &= ~TLV_DB_SCALE_MUTE;
1853 if (arg->step && arg->step != step) {
1854 codec_err(arg->codec,
1855 "Mismatching dB step for vmaster slave (%d!=%d)\n",
1861 val = -tlv[2] / step;
1863 put_kctl_with_value(kctl, val);
1870 /* unmute the slave via snd_ctl_apply_vmaster_slaves() */
1871 static int init_slave_unmute(struct snd_kcontrol *slave, void *_arg)
1873 return put_kctl_with_value(slave, 1);
1876 static int add_slave(struct hda_codec *codec,
1877 void *data, struct snd_kcontrol *slave)
1879 return snd_ctl_add_slave(data, slave);
1883 * __snd_hda_add_vmaster - create a virtual master control and add slaves
1884 * @codec: HD-audio codec
1885 * @name: vmaster control name
1886 * @tlv: TLV data (optional)
1887 * @slaves: slave control names (optional)
1888 * @suffix: suffix string to each slave name (optional)
1889 * @init_slave_vol: initialize slaves to unmute/0dB
1890 * @ctl_ret: store the vmaster kcontrol in return
1892 * Create a virtual master control with the given name. The TLV data
1893 * must be either NULL or a valid data.
1895 * @slaves is a NULL-terminated array of strings, each of which is a
1896 * slave control name. All controls with these names are assigned to
1897 * the new virtual master control.
1899 * This function returns zero if successful or a negative error code.
1901 int __snd_hda_add_vmaster(struct hda_codec *codec, char *name,
1902 unsigned int *tlv, const char * const *slaves,
1903 const char *suffix, bool init_slave_vol,
1904 struct snd_kcontrol **ctl_ret)
1906 struct snd_kcontrol *kctl;
1912 err = map_slaves(codec, slaves, suffix, check_slave_present, NULL);
1914 codec_dbg(codec, "No slave found for %s\n", name);
1917 kctl = snd_ctl_make_virtual_master(name, tlv);
1920 err = snd_hda_ctl_add(codec, 0, kctl);
1924 err = map_slaves(codec, slaves, suffix, add_slave, kctl);
1928 /* init with master mute & zero volume */
1929 put_kctl_with_value(kctl, 0);
1930 if (init_slave_vol) {
1931 struct slave_init_arg arg = {
1935 snd_ctl_apply_vmaster_slaves(kctl,
1936 tlv ? init_slave_0dB : init_slave_unmute,
1944 EXPORT_SYMBOL_GPL(__snd_hda_add_vmaster);
1947 * mute-LED control using vmaster
1949 static int vmaster_mute_mode_info(struct snd_kcontrol *kcontrol,
1950 struct snd_ctl_elem_info *uinfo)
1952 static const char * const texts[] = {
1953 "On", "Off", "Follow Master"
1956 return snd_ctl_enum_info(uinfo, 1, 3, texts);
1959 static int vmaster_mute_mode_get(struct snd_kcontrol *kcontrol,
1960 struct snd_ctl_elem_value *ucontrol)
1962 struct hda_vmaster_mute_hook *hook = snd_kcontrol_chip(kcontrol);
1963 ucontrol->value.enumerated.item[0] = hook->mute_mode;
1967 static int vmaster_mute_mode_put(struct snd_kcontrol *kcontrol,
1968 struct snd_ctl_elem_value *ucontrol)
1970 struct hda_vmaster_mute_hook *hook = snd_kcontrol_chip(kcontrol);
1971 unsigned int old_mode = hook->mute_mode;
1973 hook->mute_mode = ucontrol->value.enumerated.item[0];
1974 if (hook->mute_mode > HDA_VMUTE_FOLLOW_MASTER)
1975 hook->mute_mode = HDA_VMUTE_FOLLOW_MASTER;
1976 if (old_mode == hook->mute_mode)
1978 snd_hda_sync_vmaster_hook(hook);
1982 static const struct snd_kcontrol_new vmaster_mute_mode = {
1983 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
1984 .name = "Mute-LED Mode",
1985 .info = vmaster_mute_mode_info,
1986 .get = vmaster_mute_mode_get,
1987 .put = vmaster_mute_mode_put,
1990 /* meta hook to call each driver's vmaster hook */
1991 static void vmaster_hook(void *private_data, int enabled)
1993 struct hda_vmaster_mute_hook *hook = private_data;
1995 if (hook->mute_mode != HDA_VMUTE_FOLLOW_MASTER)
1996 enabled = hook->mute_mode;
1997 hook->hook(hook->codec, enabled);
2001 * snd_hda_add_vmaster_hook - Add a vmaster hook for mute-LED
2002 * @codec: the HDA codec
2003 * @hook: the vmaster hook object
2004 * @expose_enum_ctl: flag to create an enum ctl
2006 * Add a mute-LED hook with the given vmaster switch kctl.
2007 * When @expose_enum_ctl is set, "Mute-LED Mode" control is automatically
2008 * created and associated with the given hook.
2010 int snd_hda_add_vmaster_hook(struct hda_codec *codec,
2011 struct hda_vmaster_mute_hook *hook,
2012 bool expose_enum_ctl)
2014 struct snd_kcontrol *kctl;
2016 if (!hook->hook || !hook->sw_kctl)
2018 hook->codec = codec;
2019 hook->mute_mode = HDA_VMUTE_FOLLOW_MASTER;
2020 snd_ctl_add_vmaster_hook(hook->sw_kctl, vmaster_hook, hook);
2021 if (!expose_enum_ctl)
2023 kctl = snd_ctl_new1(&vmaster_mute_mode, hook);
2026 return snd_hda_ctl_add(codec, 0, kctl);
2028 EXPORT_SYMBOL_GPL(snd_hda_add_vmaster_hook);
2031 * snd_hda_sync_vmaster_hook - Sync vmaster hook
2032 * @hook: the vmaster hook
2034 * Call the hook with the current value for synchronization.
2035 * Should be called in init callback.
2037 void snd_hda_sync_vmaster_hook(struct hda_vmaster_mute_hook *hook)
2039 if (!hook->hook || !hook->codec)
2041 /* don't call vmaster hook in the destructor since it might have
2042 * been already destroyed
2044 if (hook->codec->bus->shutdown)
2046 snd_ctl_sync_vmaster_hook(hook->sw_kctl);
2048 EXPORT_SYMBOL_GPL(snd_hda_sync_vmaster_hook);
2052 * snd_hda_mixer_amp_switch_info - Info callback for a standard AMP mixer switch
2053 * @kcontrol: referred ctl element
2054 * @uinfo: pointer to get/store the data
2056 * The control element is supposed to have the private_value field
2057 * set up via HDA_COMPOSE_AMP_VAL*() or related macros.
2059 int snd_hda_mixer_amp_switch_info(struct snd_kcontrol *kcontrol,
2060 struct snd_ctl_elem_info *uinfo)
2062 int chs = get_amp_channels(kcontrol);
2064 uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN;
2065 uinfo->count = chs == 3 ? 2 : 1;
2066 uinfo->value.integer.min = 0;
2067 uinfo->value.integer.max = 1;
2070 EXPORT_SYMBOL_GPL(snd_hda_mixer_amp_switch_info);
2073 * snd_hda_mixer_amp_switch_get - Get callback for a standard AMP mixer switch
2074 * @kcontrol: ctl element
2075 * @ucontrol: pointer to get/store the data
2077 * The control element is supposed to have the private_value field
2078 * set up via HDA_COMPOSE_AMP_VAL*() or related macros.
2080 int snd_hda_mixer_amp_switch_get(struct snd_kcontrol *kcontrol,
2081 struct snd_ctl_elem_value *ucontrol)
2083 struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
2084 hda_nid_t nid = get_amp_nid(kcontrol);
2085 int chs = get_amp_channels(kcontrol);
2086 int dir = get_amp_direction(kcontrol);
2087 int idx = get_amp_index(kcontrol);
2088 long *valp = ucontrol->value.integer.value;
2091 *valp++ = (snd_hda_codec_amp_read(codec, nid, 0, dir, idx) &
2092 HDA_AMP_MUTE) ? 0 : 1;
2094 *valp = (snd_hda_codec_amp_read(codec, nid, 1, dir, idx) &
2095 HDA_AMP_MUTE) ? 0 : 1;
2098 EXPORT_SYMBOL_GPL(snd_hda_mixer_amp_switch_get);
2101 * snd_hda_mixer_amp_switch_put - Put callback for a standard AMP mixer switch
2102 * @kcontrol: ctl element
2103 * @ucontrol: pointer to get/store the data
2105 * The control element is supposed to have the private_value field
2106 * set up via HDA_COMPOSE_AMP_VAL*() or related macros.
2108 int snd_hda_mixer_amp_switch_put(struct snd_kcontrol *kcontrol,
2109 struct snd_ctl_elem_value *ucontrol)
2111 struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
2112 hda_nid_t nid = get_amp_nid(kcontrol);
2113 int chs = get_amp_channels(kcontrol);
2114 int dir = get_amp_direction(kcontrol);
2115 int idx = get_amp_index(kcontrol);
2116 long *valp = ucontrol->value.integer.value;
2120 change = snd_hda_codec_amp_update(codec, nid, 0, dir, idx,
2122 *valp ? 0 : HDA_AMP_MUTE);
2126 change |= snd_hda_codec_amp_update(codec, nid, 1, dir, idx,
2128 *valp ? 0 : HDA_AMP_MUTE);
2129 hda_call_check_power_status(codec, nid);
2132 EXPORT_SYMBOL_GPL(snd_hda_mixer_amp_switch_put);
2135 * SPDIF out controls
2138 static int snd_hda_spdif_mask_info(struct snd_kcontrol *kcontrol,
2139 struct snd_ctl_elem_info *uinfo)
2141 uinfo->type = SNDRV_CTL_ELEM_TYPE_IEC958;
2146 static int snd_hda_spdif_cmask_get(struct snd_kcontrol *kcontrol,
2147 struct snd_ctl_elem_value *ucontrol)
2149 ucontrol->value.iec958.status[0] = IEC958_AES0_PROFESSIONAL |
2150 IEC958_AES0_NONAUDIO |
2151 IEC958_AES0_CON_EMPHASIS_5015 |
2152 IEC958_AES0_CON_NOT_COPYRIGHT;
2153 ucontrol->value.iec958.status[1] = IEC958_AES1_CON_CATEGORY |
2154 IEC958_AES1_CON_ORIGINAL;
2158 static int snd_hda_spdif_pmask_get(struct snd_kcontrol *kcontrol,
2159 struct snd_ctl_elem_value *ucontrol)
2161 ucontrol->value.iec958.status[0] = IEC958_AES0_PROFESSIONAL |
2162 IEC958_AES0_NONAUDIO |
2163 IEC958_AES0_PRO_EMPHASIS_5015;
2167 static int snd_hda_spdif_default_get(struct snd_kcontrol *kcontrol,
2168 struct snd_ctl_elem_value *ucontrol)
2170 struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
2171 int idx = kcontrol->private_value;
2172 struct hda_spdif_out *spdif;
2174 mutex_lock(&codec->spdif_mutex);
2175 spdif = snd_array_elem(&codec->spdif_out, idx);
2176 ucontrol->value.iec958.status[0] = spdif->status & 0xff;
2177 ucontrol->value.iec958.status[1] = (spdif->status >> 8) & 0xff;
2178 ucontrol->value.iec958.status[2] = (spdif->status >> 16) & 0xff;
2179 ucontrol->value.iec958.status[3] = (spdif->status >> 24) & 0xff;
2180 mutex_unlock(&codec->spdif_mutex);
2185 /* convert from SPDIF status bits to HDA SPDIF bits
2186 * bit 0 (DigEn) is always set zero (to be filled later)
2188 static unsigned short convert_from_spdif_status(unsigned int sbits)
2190 unsigned short val = 0;
2192 if (sbits & IEC958_AES0_PROFESSIONAL)
2193 val |= AC_DIG1_PROFESSIONAL;
2194 if (sbits & IEC958_AES0_NONAUDIO)
2195 val |= AC_DIG1_NONAUDIO;
2196 if (sbits & IEC958_AES0_PROFESSIONAL) {
2197 if ((sbits & IEC958_AES0_PRO_EMPHASIS) ==
2198 IEC958_AES0_PRO_EMPHASIS_5015)
2199 val |= AC_DIG1_EMPHASIS;
2201 if ((sbits & IEC958_AES0_CON_EMPHASIS) ==
2202 IEC958_AES0_CON_EMPHASIS_5015)
2203 val |= AC_DIG1_EMPHASIS;
2204 if (!(sbits & IEC958_AES0_CON_NOT_COPYRIGHT))
2205 val |= AC_DIG1_COPYRIGHT;
2206 if (sbits & (IEC958_AES1_CON_ORIGINAL << 8))
2207 val |= AC_DIG1_LEVEL;
2208 val |= sbits & (IEC958_AES1_CON_CATEGORY << 8);
2213 /* convert to SPDIF status bits from HDA SPDIF bits
2215 static unsigned int convert_to_spdif_status(unsigned short val)
2217 unsigned int sbits = 0;
2219 if (val & AC_DIG1_NONAUDIO)
2220 sbits |= IEC958_AES0_NONAUDIO;
2221 if (val & AC_DIG1_PROFESSIONAL)
2222 sbits |= IEC958_AES0_PROFESSIONAL;
2223 if (sbits & IEC958_AES0_PROFESSIONAL) {
2224 if (val & AC_DIG1_EMPHASIS)
2225 sbits |= IEC958_AES0_PRO_EMPHASIS_5015;
2227 if (val & AC_DIG1_EMPHASIS)
2228 sbits |= IEC958_AES0_CON_EMPHASIS_5015;
2229 if (!(val & AC_DIG1_COPYRIGHT))
2230 sbits |= IEC958_AES0_CON_NOT_COPYRIGHT;
2231 if (val & AC_DIG1_LEVEL)
2232 sbits |= (IEC958_AES1_CON_ORIGINAL << 8);
2233 sbits |= val & (0x7f << 8);
2238 /* set digital convert verbs both for the given NID and its slaves */
2239 static void set_dig_out(struct hda_codec *codec, hda_nid_t nid,
2244 snd_hdac_regmap_update(&codec->core, nid, AC_VERB_SET_DIGI_CONVERT_1,
2246 d = codec->slave_dig_outs;
2250 snd_hdac_regmap_update(&codec->core, *d,
2251 AC_VERB_SET_DIGI_CONVERT_1, mask, val);
2254 static inline void set_dig_out_convert(struct hda_codec *codec, hda_nid_t nid,
2257 unsigned int mask = 0;
2258 unsigned int val = 0;
2268 set_dig_out(codec, nid, mask, val);
2271 static int snd_hda_spdif_default_put(struct snd_kcontrol *kcontrol,
2272 struct snd_ctl_elem_value *ucontrol)
2274 struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
2275 int idx = kcontrol->private_value;
2276 struct hda_spdif_out *spdif;
2281 mutex_lock(&codec->spdif_mutex);
2282 spdif = snd_array_elem(&codec->spdif_out, idx);
2284 spdif->status = ucontrol->value.iec958.status[0] |
2285 ((unsigned int)ucontrol->value.iec958.status[1] << 8) |
2286 ((unsigned int)ucontrol->value.iec958.status[2] << 16) |
2287 ((unsigned int)ucontrol->value.iec958.status[3] << 24);
2288 val = convert_from_spdif_status(spdif->status);
2289 val |= spdif->ctls & 1;
2290 change = spdif->ctls != val;
2292 if (change && nid != (u16)-1)
2293 set_dig_out_convert(codec, nid, val & 0xff, (val >> 8) & 0xff);
2294 mutex_unlock(&codec->spdif_mutex);
2298 #define snd_hda_spdif_out_switch_info snd_ctl_boolean_mono_info
2300 static int snd_hda_spdif_out_switch_get(struct snd_kcontrol *kcontrol,
2301 struct snd_ctl_elem_value *ucontrol)
2303 struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
2304 int idx = kcontrol->private_value;
2305 struct hda_spdif_out *spdif;
2307 mutex_lock(&codec->spdif_mutex);
2308 spdif = snd_array_elem(&codec->spdif_out, idx);
2309 ucontrol->value.integer.value[0] = spdif->ctls & AC_DIG1_ENABLE;
2310 mutex_unlock(&codec->spdif_mutex);
2314 static inline void set_spdif_ctls(struct hda_codec *codec, hda_nid_t nid,
2317 set_dig_out_convert(codec, nid, dig1, dig2);
2318 /* unmute amp switch (if any) */
2319 if ((get_wcaps(codec, nid) & AC_WCAP_OUT_AMP) &&
2320 (dig1 & AC_DIG1_ENABLE))
2321 snd_hda_codec_amp_stereo(codec, nid, HDA_OUTPUT, 0,
2325 static int snd_hda_spdif_out_switch_put(struct snd_kcontrol *kcontrol,
2326 struct snd_ctl_elem_value *ucontrol)
2328 struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
2329 int idx = kcontrol->private_value;
2330 struct hda_spdif_out *spdif;
2335 mutex_lock(&codec->spdif_mutex);
2336 spdif = snd_array_elem(&codec->spdif_out, idx);
2338 val = spdif->ctls & ~AC_DIG1_ENABLE;
2339 if (ucontrol->value.integer.value[0])
2340 val |= AC_DIG1_ENABLE;
2341 change = spdif->ctls != val;
2343 if (change && nid != (u16)-1)
2344 set_spdif_ctls(codec, nid, val & 0xff, -1);
2345 mutex_unlock(&codec->spdif_mutex);
2349 static struct snd_kcontrol_new dig_mixes[] = {
2351 .access = SNDRV_CTL_ELEM_ACCESS_READ,
2352 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
2353 .name = SNDRV_CTL_NAME_IEC958("", PLAYBACK, CON_MASK),
2354 .info = snd_hda_spdif_mask_info,
2355 .get = snd_hda_spdif_cmask_get,
2358 .access = SNDRV_CTL_ELEM_ACCESS_READ,
2359 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
2360 .name = SNDRV_CTL_NAME_IEC958("", PLAYBACK, PRO_MASK),
2361 .info = snd_hda_spdif_mask_info,
2362 .get = snd_hda_spdif_pmask_get,
2365 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
2366 .name = SNDRV_CTL_NAME_IEC958("", PLAYBACK, DEFAULT),
2367 .info = snd_hda_spdif_mask_info,
2368 .get = snd_hda_spdif_default_get,
2369 .put = snd_hda_spdif_default_put,
2372 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
2373 .name = SNDRV_CTL_NAME_IEC958("", PLAYBACK, SWITCH),
2374 .info = snd_hda_spdif_out_switch_info,
2375 .get = snd_hda_spdif_out_switch_get,
2376 .put = snd_hda_spdif_out_switch_put,
2382 * snd_hda_create_dig_out_ctls - create Output SPDIF-related controls
2383 * @codec: the HDA codec
2384 * @associated_nid: NID that new ctls associated with
2385 * @cvt_nid: converter NID
2386 * @type: HDA_PCM_TYPE_*
2387 * Creates controls related with the digital output.
2388 * Called from each patch supporting the digital out.
2390 * Returns 0 if successful, or a negative error code.
2392 int snd_hda_create_dig_out_ctls(struct hda_codec *codec,
2393 hda_nid_t associated_nid,
2398 struct snd_kcontrol *kctl;
2399 struct snd_kcontrol_new *dig_mix;
2402 const int spdif_index = 16;
2403 struct hda_spdif_out *spdif;
2404 struct hda_bus *bus = codec->bus;
2406 if (bus->primary_dig_out_type == HDA_PCM_TYPE_HDMI &&
2407 type == HDA_PCM_TYPE_SPDIF) {
2409 } else if (bus->primary_dig_out_type == HDA_PCM_TYPE_SPDIF &&
2410 type == HDA_PCM_TYPE_HDMI) {
2411 /* suppose a single SPDIF device */
2412 for (dig_mix = dig_mixes; dig_mix->name; dig_mix++) {
2413 kctl = find_mixer_ctl(codec, dig_mix->name, 0, 0);
2416 kctl->id.index = spdif_index;
2418 bus->primary_dig_out_type = HDA_PCM_TYPE_HDMI;
2420 if (!bus->primary_dig_out_type)
2421 bus->primary_dig_out_type = type;
2423 idx = find_empty_mixer_ctl_idx(codec, "IEC958 Playback Switch", idx);
2425 codec_err(codec, "too many IEC958 outputs\n");
2428 spdif = snd_array_new(&codec->spdif_out);
2431 for (dig_mix = dig_mixes; dig_mix->name; dig_mix++) {
2432 kctl = snd_ctl_new1(dig_mix, codec);
2435 kctl->id.index = idx;
2436 kctl->private_value = codec->spdif_out.used - 1;
2437 err = snd_hda_ctl_add(codec, associated_nid, kctl);
2441 spdif->nid = cvt_nid;
2442 snd_hdac_regmap_read(&codec->core, cvt_nid,
2443 AC_VERB_GET_DIGI_CONVERT_1, &val);
2445 spdif->status = convert_to_spdif_status(spdif->ctls);
2448 EXPORT_SYMBOL_GPL(snd_hda_create_dig_out_ctls);
2451 * snd_hda_spdif_out_of_nid - get the hda_spdif_out entry from the given NID
2452 * @codec: the HDA codec
2455 * call within spdif_mutex lock
2457 struct hda_spdif_out *snd_hda_spdif_out_of_nid(struct hda_codec *codec,
2461 for (i = 0; i < codec->spdif_out.used; i++) {
2462 struct hda_spdif_out *spdif =
2463 snd_array_elem(&codec->spdif_out, i);
2464 if (spdif->nid == nid)
2469 EXPORT_SYMBOL_GPL(snd_hda_spdif_out_of_nid);
2472 * snd_hda_spdif_ctls_unassign - Unassign the given SPDIF ctl
2473 * @codec: the HDA codec
2474 * @idx: the SPDIF ctl index
2476 * Unassign the widget from the given SPDIF control.
2478 void snd_hda_spdif_ctls_unassign(struct hda_codec *codec, int idx)
2480 struct hda_spdif_out *spdif;
2482 mutex_lock(&codec->spdif_mutex);
2483 spdif = snd_array_elem(&codec->spdif_out, idx);
2484 spdif->nid = (u16)-1;
2485 mutex_unlock(&codec->spdif_mutex);
2487 EXPORT_SYMBOL_GPL(snd_hda_spdif_ctls_unassign);
2490 * snd_hda_spdif_ctls_assign - Assign the SPDIF controls to the given NID
2491 * @codec: the HDA codec
2492 * @idx: the SPDIF ctl idx
2495 * Assign the widget to the SPDIF control with the given index.
2497 void snd_hda_spdif_ctls_assign(struct hda_codec *codec, int idx, hda_nid_t nid)
2499 struct hda_spdif_out *spdif;
2502 mutex_lock(&codec->spdif_mutex);
2503 spdif = snd_array_elem(&codec->spdif_out, idx);
2504 if (spdif->nid != nid) {
2507 set_spdif_ctls(codec, nid, val & 0xff, (val >> 8) & 0xff);
2509 mutex_unlock(&codec->spdif_mutex);
2511 EXPORT_SYMBOL_GPL(snd_hda_spdif_ctls_assign);
2514 * SPDIF sharing with analog output
2516 static int spdif_share_sw_get(struct snd_kcontrol *kcontrol,
2517 struct snd_ctl_elem_value *ucontrol)
2519 struct hda_multi_out *mout = snd_kcontrol_chip(kcontrol);
2520 ucontrol->value.integer.value[0] = mout->share_spdif;
2524 static int spdif_share_sw_put(struct snd_kcontrol *kcontrol,
2525 struct snd_ctl_elem_value *ucontrol)
2527 struct hda_multi_out *mout = snd_kcontrol_chip(kcontrol);
2528 mout->share_spdif = !!ucontrol->value.integer.value[0];
2532 static const struct snd_kcontrol_new spdif_share_sw = {
2533 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
2534 .name = "IEC958 Default PCM Playback Switch",
2535 .info = snd_ctl_boolean_mono_info,
2536 .get = spdif_share_sw_get,
2537 .put = spdif_share_sw_put,
2541 * snd_hda_create_spdif_share_sw - create Default PCM switch
2542 * @codec: the HDA codec
2543 * @mout: multi-out instance
2545 int snd_hda_create_spdif_share_sw(struct hda_codec *codec,
2546 struct hda_multi_out *mout)
2548 struct snd_kcontrol *kctl;
2550 if (!mout->dig_out_nid)
2553 kctl = snd_ctl_new1(&spdif_share_sw, mout);
2556 /* ATTENTION: here mout is passed as private_data, instead of codec */
2557 return snd_hda_ctl_add(codec, mout->dig_out_nid, kctl);
2559 EXPORT_SYMBOL_GPL(snd_hda_create_spdif_share_sw);
2565 #define snd_hda_spdif_in_switch_info snd_hda_spdif_out_switch_info
2567 static int snd_hda_spdif_in_switch_get(struct snd_kcontrol *kcontrol,
2568 struct snd_ctl_elem_value *ucontrol)
2570 struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
2572 ucontrol->value.integer.value[0] = codec->spdif_in_enable;
2576 static int snd_hda_spdif_in_switch_put(struct snd_kcontrol *kcontrol,
2577 struct snd_ctl_elem_value *ucontrol)
2579 struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
2580 hda_nid_t nid = kcontrol->private_value;
2581 unsigned int val = !!ucontrol->value.integer.value[0];
2584 mutex_lock(&codec->spdif_mutex);
2585 change = codec->spdif_in_enable != val;
2587 codec->spdif_in_enable = val;
2588 snd_hdac_regmap_write(&codec->core, nid,
2589 AC_VERB_SET_DIGI_CONVERT_1, val);
2591 mutex_unlock(&codec->spdif_mutex);
2595 static int snd_hda_spdif_in_status_get(struct snd_kcontrol *kcontrol,
2596 struct snd_ctl_elem_value *ucontrol)
2598 struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
2599 hda_nid_t nid = kcontrol->private_value;
2603 snd_hdac_regmap_read(&codec->core, nid,
2604 AC_VERB_GET_DIGI_CONVERT_1, &val);
2605 sbits = convert_to_spdif_status(val);
2606 ucontrol->value.iec958.status[0] = sbits;
2607 ucontrol->value.iec958.status[1] = sbits >> 8;
2608 ucontrol->value.iec958.status[2] = sbits >> 16;
2609 ucontrol->value.iec958.status[3] = sbits >> 24;
2613 static struct snd_kcontrol_new dig_in_ctls[] = {
2615 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
2616 .name = SNDRV_CTL_NAME_IEC958("", CAPTURE, SWITCH),
2617 .info = snd_hda_spdif_in_switch_info,
2618 .get = snd_hda_spdif_in_switch_get,
2619 .put = snd_hda_spdif_in_switch_put,
2622 .access = SNDRV_CTL_ELEM_ACCESS_READ,
2623 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
2624 .name = SNDRV_CTL_NAME_IEC958("", CAPTURE, DEFAULT),
2625 .info = snd_hda_spdif_mask_info,
2626 .get = snd_hda_spdif_in_status_get,
2632 * snd_hda_create_spdif_in_ctls - create Input SPDIF-related controls
2633 * @codec: the HDA codec
2634 * @nid: audio in widget NID
2636 * Creates controls related with the SPDIF input.
2637 * Called from each patch supporting the SPDIF in.
2639 * Returns 0 if successful, or a negative error code.
2641 int snd_hda_create_spdif_in_ctls(struct hda_codec *codec, hda_nid_t nid)
2644 struct snd_kcontrol *kctl;
2645 struct snd_kcontrol_new *dig_mix;
2648 idx = find_empty_mixer_ctl_idx(codec, "IEC958 Capture Switch", 0);
2650 codec_err(codec, "too many IEC958 inputs\n");
2653 for (dig_mix = dig_in_ctls; dig_mix->name; dig_mix++) {
2654 kctl = snd_ctl_new1(dig_mix, codec);
2657 kctl->private_value = nid;
2658 err = snd_hda_ctl_add(codec, nid, kctl);
2662 codec->spdif_in_enable =
2663 snd_hda_codec_read(codec, nid, 0,
2664 AC_VERB_GET_DIGI_CONVERT_1, 0) &
2668 EXPORT_SYMBOL_GPL(snd_hda_create_spdif_in_ctls);
2671 * snd_hda_codec_set_power_to_all - Set the power state to all widgets
2672 * @codec: the HDA codec
2673 * @fg: function group (not used now)
2674 * @power_state: the power state to set (AC_PWRST_*)
2676 * Set the given power state to all widgets that have the power control.
2677 * If the codec has power_filter set, it evaluates the power state and
2678 * filter out if it's unchanged as D3.
2680 void snd_hda_codec_set_power_to_all(struct hda_codec *codec, hda_nid_t fg,
2681 unsigned int power_state)
2685 for_each_hda_codec_node(nid, codec) {
2686 unsigned int wcaps = get_wcaps(codec, nid);
2687 unsigned int state = power_state;
2688 if (!(wcaps & AC_WCAP_POWER))
2690 if (codec->power_filter) {
2691 state = codec->power_filter(codec, nid, power_state);
2692 if (state != power_state && power_state == AC_PWRST_D3)
2695 snd_hda_codec_write(codec, nid, 0, AC_VERB_SET_POWER_STATE,
2699 EXPORT_SYMBOL_GPL(snd_hda_codec_set_power_to_all);
2702 * wait until the state is reached, returns the current state
2704 static unsigned int hda_sync_power_state(struct hda_codec *codec,
2706 unsigned int power_state)
2708 unsigned long end_time = jiffies + msecs_to_jiffies(500);
2709 unsigned int state, actual_state;
2712 state = snd_hda_codec_read(codec, fg, 0,
2713 AC_VERB_GET_POWER_STATE, 0);
2714 if (state & AC_PWRST_ERROR)
2716 actual_state = (state >> 4) & 0x0f;
2717 if (actual_state == power_state)
2719 if (time_after_eq(jiffies, end_time))
2721 /* wait until the codec reachs to the target state */
2728 * snd_hda_codec_eapd_power_filter - A power filter callback for EAPD
2729 * @codec: the HDA codec
2731 * @power_state: power state to evalue
2733 * Don't power down the widget if it controls eapd and EAPD_BTLENABLE is set.
2734 * This can be used a codec power_filter callback.
2736 unsigned int snd_hda_codec_eapd_power_filter(struct hda_codec *codec,
2738 unsigned int power_state)
2740 if (nid == codec->core.afg || nid == codec->core.mfg)
2742 if (power_state == AC_PWRST_D3 &&
2743 get_wcaps_type(get_wcaps(codec, nid)) == AC_WID_PIN &&
2744 (snd_hda_query_pin_caps(codec, nid) & AC_PINCAP_EAPD)) {
2745 int eapd = snd_hda_codec_read(codec, nid, 0,
2746 AC_VERB_GET_EAPD_BTLENABLE, 0);
2752 EXPORT_SYMBOL_GPL(snd_hda_codec_eapd_power_filter);
2755 * set power state of the codec, and return the power state
2757 static unsigned int hda_set_power_state(struct hda_codec *codec,
2758 unsigned int power_state)
2760 hda_nid_t fg = codec->core.afg ? codec->core.afg : codec->core.mfg;
2765 /* this delay seems necessary to avoid click noise at power-down */
2766 if (power_state == AC_PWRST_D3) {
2767 if (codec->depop_delay < 0)
2768 msleep(codec_has_epss(codec) ? 10 : 100);
2769 else if (codec->depop_delay > 0)
2770 msleep(codec->depop_delay);
2771 flags = HDA_RW_NO_RESPONSE_FALLBACK;
2774 /* repeat power states setting at most 10 times*/
2775 for (count = 0; count < 10; count++) {
2776 if (codec->patch_ops.set_power_state)
2777 codec->patch_ops.set_power_state(codec, fg,
2780 state = power_state;
2781 if (codec->power_filter)
2782 state = codec->power_filter(codec, fg, state);
2783 if (state == power_state || power_state != AC_PWRST_D3)
2784 snd_hda_codec_read(codec, fg, flags,
2785 AC_VERB_SET_POWER_STATE,
2787 snd_hda_codec_set_power_to_all(codec, fg, power_state);
2789 state = hda_sync_power_state(codec, fg, power_state);
2790 if (!(state & AC_PWRST_ERROR))
2797 /* sync power states of all widgets;
2798 * this is called at the end of codec parsing
2800 static void sync_power_up_states(struct hda_codec *codec)
2804 /* don't care if no filter is used */
2805 if (!codec->power_filter)
2808 for_each_hda_codec_node(nid, codec) {
2809 unsigned int wcaps = get_wcaps(codec, nid);
2810 unsigned int target;
2811 if (!(wcaps & AC_WCAP_POWER))
2813 target = codec->power_filter(codec, nid, AC_PWRST_D0);
2814 if (target == AC_PWRST_D0)
2816 if (!snd_hda_check_power_state(codec, nid, target))
2817 snd_hda_codec_write(codec, nid, 0,
2818 AC_VERB_SET_POWER_STATE, target);
2822 #ifdef CONFIG_SND_HDA_RECONFIG
2823 /* execute additional init verbs */
2824 static void hda_exec_init_verbs(struct hda_codec *codec)
2826 if (codec->init_verbs.list)
2827 snd_hda_sequence_write(codec, codec->init_verbs.list);
2830 static inline void hda_exec_init_verbs(struct hda_codec *codec) {}
2834 /* update the power on/off account with the current jiffies */
2835 static void update_power_acct(struct hda_codec *codec, bool on)
2837 unsigned long delta = jiffies - codec->power_jiffies;
2840 codec->power_on_acct += delta;
2842 codec->power_off_acct += delta;
2843 codec->power_jiffies += delta;
2846 void snd_hda_update_power_acct(struct hda_codec *codec)
2848 update_power_acct(codec, hda_codec_is_power_on(codec));
2852 * call suspend and power-down; used both from PM and power-save
2853 * this function returns the power state in the end
2855 static unsigned int hda_call_codec_suspend(struct hda_codec *codec)
2859 atomic_inc(&codec->core.in_pm);
2861 if (codec->patch_ops.suspend)
2862 codec->patch_ops.suspend(codec);
2863 hda_cleanup_all_streams(codec);
2864 state = hda_set_power_state(codec, AC_PWRST_D3);
2865 update_power_acct(codec, true);
2866 atomic_dec(&codec->core.in_pm);
2871 * kick up codec; used both from PM and power-save
2873 static void hda_call_codec_resume(struct hda_codec *codec)
2875 atomic_inc(&codec->core.in_pm);
2877 if (codec->core.regmap)
2878 regcache_mark_dirty(codec->core.regmap);
2880 codec->power_jiffies = jiffies;
2882 hda_set_power_state(codec, AC_PWRST_D0);
2883 restore_shutup_pins(codec);
2884 hda_exec_init_verbs(codec);
2885 snd_hda_jack_set_dirty_all(codec);
2886 if (codec->patch_ops.resume)
2887 codec->patch_ops.resume(codec);
2889 if (codec->patch_ops.init)
2890 codec->patch_ops.init(codec);
2891 if (codec->core.regmap)
2892 regcache_sync(codec->core.regmap);
2895 if (codec->jackpoll_interval)
2896 hda_jackpoll_work(&codec->jackpoll_work.work);
2898 snd_hda_jack_report_sync(codec);
2899 atomic_dec(&codec->core.in_pm);
2902 static int hda_codec_runtime_suspend(struct device *dev)
2904 struct hda_codec *codec = dev_to_hda_codec(dev);
2905 struct hda_pcm *pcm;
2908 cancel_delayed_work_sync(&codec->jackpoll_work);
2909 list_for_each_entry(pcm, &codec->pcm_list_head, list)
2910 snd_pcm_suspend_all(pcm->pcm);
2911 state = hda_call_codec_suspend(codec);
2912 if (codec_has_clkstop(codec) && codec_has_epss(codec) &&
2913 (state & AC_PWRST_CLK_STOP_OK))
2914 snd_hdac_codec_link_down(&codec->core);
2915 snd_hdac_link_power(&codec->core, false);
2919 static int hda_codec_runtime_resume(struct device *dev)
2921 struct hda_codec *codec = dev_to_hda_codec(dev);
2923 snd_hdac_link_power(&codec->core, true);
2924 snd_hdac_codec_link_up(&codec->core);
2925 hda_call_codec_resume(codec);
2926 pm_runtime_mark_last_busy(dev);
2929 #endif /* CONFIG_PM */
2931 /* referred in hda_bind.c */
2932 const struct dev_pm_ops hda_codec_driver_pm = {
2933 SET_SYSTEM_SLEEP_PM_OPS(pm_runtime_force_suspend,
2934 pm_runtime_force_resume)
2935 SET_RUNTIME_PM_OPS(hda_codec_runtime_suspend, hda_codec_runtime_resume,
2940 * add standard channel maps if not specified
2942 static int add_std_chmaps(struct hda_codec *codec)
2944 struct hda_pcm *pcm;
2947 list_for_each_entry(pcm, &codec->pcm_list_head, list) {
2948 for (str = 0; str < 2; str++) {
2949 struct hda_pcm_stream *hinfo = &pcm->stream[str];
2950 struct snd_pcm_chmap *chmap;
2951 const struct snd_pcm_chmap_elem *elem;
2953 if (!pcm->pcm || pcm->own_chmap || !hinfo->substreams)
2955 elem = hinfo->chmap ? hinfo->chmap : snd_pcm_std_chmaps;
2956 err = snd_pcm_add_chmap_ctls(pcm->pcm, str, elem,
2957 hinfo->channels_max,
2961 chmap->channel_mask = SND_PCM_CHMAP_MASK_2468;
2967 /* default channel maps for 2.1 speakers;
2968 * since HD-audio supports only stereo, odd number channels are omitted
2970 const struct snd_pcm_chmap_elem snd_pcm_2_1_chmaps[] = {
2972 .map = { SNDRV_CHMAP_FL, SNDRV_CHMAP_FR } },
2974 .map = { SNDRV_CHMAP_FL, SNDRV_CHMAP_FR,
2975 SNDRV_CHMAP_LFE, SNDRV_CHMAP_LFE } },
2978 EXPORT_SYMBOL_GPL(snd_pcm_2_1_chmaps);
2980 int snd_hda_codec_build_controls(struct hda_codec *codec)
2983 hda_exec_init_verbs(codec);
2984 /* continue to initialize... */
2985 if (codec->patch_ops.init)
2986 err = codec->patch_ops.init(codec);
2987 if (!err && codec->patch_ops.build_controls)
2988 err = codec->patch_ops.build_controls(codec);
2992 /* we create chmaps here instead of build_pcms */
2993 err = add_std_chmaps(codec);
2997 if (codec->jackpoll_interval)
2998 hda_jackpoll_work(&codec->jackpoll_work.work);
3000 snd_hda_jack_report_sync(codec); /* call at the last init point */
3001 sync_power_up_states(codec);
3008 static int hda_pcm_default_open_close(struct hda_pcm_stream *hinfo,
3009 struct hda_codec *codec,
3010 struct snd_pcm_substream *substream)
3015 static int hda_pcm_default_prepare(struct hda_pcm_stream *hinfo,
3016 struct hda_codec *codec,
3017 unsigned int stream_tag,
3018 unsigned int format,
3019 struct snd_pcm_substream *substream)
3021 snd_hda_codec_setup_stream(codec, hinfo->nid, stream_tag, 0, format);
3025 static int hda_pcm_default_cleanup(struct hda_pcm_stream *hinfo,
3026 struct hda_codec *codec,
3027 struct snd_pcm_substream *substream)
3029 snd_hda_codec_cleanup_stream(codec, hinfo->nid);
3033 static int set_pcm_default_values(struct hda_codec *codec,
3034 struct hda_pcm_stream *info)
3038 /* query support PCM information from the given NID */
3039 if (info->nid && (!info->rates || !info->formats)) {
3040 err = snd_hda_query_supported_pcm(codec, info->nid,
3041 info->rates ? NULL : &info->rates,
3042 info->formats ? NULL : &info->formats,
3043 info->maxbps ? NULL : &info->maxbps);
3047 if (info->ops.open == NULL)
3048 info->ops.open = hda_pcm_default_open_close;
3049 if (info->ops.close == NULL)
3050 info->ops.close = hda_pcm_default_open_close;
3051 if (info->ops.prepare == NULL) {
3052 if (snd_BUG_ON(!info->nid))
3054 info->ops.prepare = hda_pcm_default_prepare;
3056 if (info->ops.cleanup == NULL) {
3057 if (snd_BUG_ON(!info->nid))
3059 info->ops.cleanup = hda_pcm_default_cleanup;
3065 * codec prepare/cleanup entries
3068 * snd_hda_codec_prepare - Prepare a stream
3069 * @codec: the HDA codec
3070 * @hinfo: PCM information
3071 * @stream: stream tag to assign
3072 * @format: format id to assign
3073 * @substream: PCM substream to assign
3075 * Calls the prepare callback set by the codec with the given arguments.
3076 * Clean up the inactive streams when successful.
3078 int snd_hda_codec_prepare(struct hda_codec *codec,
3079 struct hda_pcm_stream *hinfo,
3080 unsigned int stream,
3081 unsigned int format,
3082 struct snd_pcm_substream *substream)
3085 mutex_lock(&codec->bus->prepare_mutex);
3086 if (hinfo->ops.prepare)
3087 ret = hinfo->ops.prepare(hinfo, codec, stream, format,
3092 purify_inactive_streams(codec);
3093 mutex_unlock(&codec->bus->prepare_mutex);
3096 EXPORT_SYMBOL_GPL(snd_hda_codec_prepare);
3099 * snd_hda_codec_cleanup - Prepare a stream
3100 * @codec: the HDA codec
3101 * @hinfo: PCM information
3102 * @substream: PCM substream
3104 * Calls the cleanup callback set by the codec with the given arguments.
3106 void snd_hda_codec_cleanup(struct hda_codec *codec,
3107 struct hda_pcm_stream *hinfo,
3108 struct snd_pcm_substream *substream)
3110 mutex_lock(&codec->bus->prepare_mutex);
3111 if (hinfo->ops.cleanup)
3112 hinfo->ops.cleanup(hinfo, codec, substream);
3113 mutex_unlock(&codec->bus->prepare_mutex);
3115 EXPORT_SYMBOL_GPL(snd_hda_codec_cleanup);
3118 const char *snd_hda_pcm_type_name[HDA_PCM_NTYPES] = {
3119 "Audio", "SPDIF", "HDMI", "Modem"
3123 * get the empty PCM device number to assign
3125 static int get_empty_pcm_device(struct hda_bus *bus, unsigned int type)
3127 /* audio device indices; not linear to keep compatibility */
3128 /* assigned to static slots up to dev#10; if more needed, assign
3129 * the later slot dynamically (when CONFIG_SND_DYNAMIC_MINORS=y)
3131 static int audio_idx[HDA_PCM_NTYPES][5] = {
3132 [HDA_PCM_TYPE_AUDIO] = { 0, 2, 4, 5, -1 },
3133 [HDA_PCM_TYPE_SPDIF] = { 1, -1 },
3134 [HDA_PCM_TYPE_HDMI] = { 3, 7, 8, 9, -1 },
3135 [HDA_PCM_TYPE_MODEM] = { 6, -1 },
3139 if (type >= HDA_PCM_NTYPES) {
3140 dev_err(bus->card->dev, "Invalid PCM type %d\n", type);
3144 for (i = 0; audio_idx[type][i] >= 0; i++) {
3145 #ifndef CONFIG_SND_DYNAMIC_MINORS
3146 if (audio_idx[type][i] >= 8)
3149 if (!test_and_set_bit(audio_idx[type][i], bus->pcm_dev_bits))
3150 return audio_idx[type][i];
3153 #ifdef CONFIG_SND_DYNAMIC_MINORS
3154 /* non-fixed slots starting from 10 */
3155 for (i = 10; i < 32; i++) {
3156 if (!test_and_set_bit(i, bus->pcm_dev_bits))
3161 dev_warn(bus->card->dev, "Too many %s devices\n",
3162 snd_hda_pcm_type_name[type]);
3163 #ifndef CONFIG_SND_DYNAMIC_MINORS
3164 dev_warn(bus->card->dev,
3165 "Consider building the kernel with CONFIG_SND_DYNAMIC_MINORS=y\n");
3170 /* call build_pcms ops of the given codec and set up the default parameters */
3171 int snd_hda_codec_parse_pcms(struct hda_codec *codec)
3173 struct hda_pcm *cpcm;
3176 if (!list_empty(&codec->pcm_list_head))
3177 return 0; /* already parsed */
3179 if (!codec->patch_ops.build_pcms)
3182 err = codec->patch_ops.build_pcms(codec);
3184 codec_err(codec, "cannot build PCMs for #%d (error %d)\n",
3185 codec->core.addr, err);
3189 list_for_each_entry(cpcm, &codec->pcm_list_head, list) {
3192 for (stream = 0; stream < 2; stream++) {
3193 struct hda_pcm_stream *info = &cpcm->stream[stream];
3195 if (!info->substreams)
3197 err = set_pcm_default_values(codec, info);
3200 "fail to setup default for PCM %s\n",
3210 /* assign all PCMs of the given codec */
3211 int snd_hda_codec_build_pcms(struct hda_codec *codec)
3213 struct hda_bus *bus = codec->bus;
3214 struct hda_pcm *cpcm;
3217 err = snd_hda_codec_parse_pcms(codec);
3221 /* attach a new PCM streams */
3222 list_for_each_entry(cpcm, &codec->pcm_list_head, list) {
3224 continue; /* already attached */
3225 if (!cpcm->stream[0].substreams && !cpcm->stream[1].substreams)
3226 continue; /* no substreams assigned */
3228 dev = get_empty_pcm_device(bus, cpcm->pcm_type);
3230 cpcm->device = SNDRV_PCM_INVALID_DEVICE;
3231 continue; /* no fatal error */
3234 err = snd_hda_attach_pcm_stream(bus, codec, cpcm);
3237 "cannot attach PCM stream %d for codec #%d\n",
3238 dev, codec->core.addr);
3239 continue; /* no fatal error */
3247 * snd_hda_add_new_ctls - create controls from the array
3248 * @codec: the HDA codec
3249 * @knew: the array of struct snd_kcontrol_new
3251 * This helper function creates and add new controls in the given array.
3252 * The array must be terminated with an empty entry as terminator.
3254 * Returns 0 if successful, or a negative error code.
3256 int snd_hda_add_new_ctls(struct hda_codec *codec,
3257 const struct snd_kcontrol_new *knew)
3261 for (; knew->name; knew++) {
3262 struct snd_kcontrol *kctl;
3263 int addr = 0, idx = 0;
3264 if (knew->iface == -1) /* skip this codec private value */
3267 kctl = snd_ctl_new1(knew, codec);
3271 kctl->id.device = addr;
3273 kctl->id.index = idx;
3274 err = snd_hda_ctl_add(codec, 0, kctl);
3277 /* try first with another device index corresponding to
3278 * the codec addr; if it still fails (or it's the
3279 * primary codec), then try another control index
3281 if (!addr && codec->core.addr)
3282 addr = codec->core.addr;
3283 else if (!idx && !knew->index) {
3284 idx = find_empty_mixer_ctl_idx(codec,
3294 EXPORT_SYMBOL_GPL(snd_hda_add_new_ctls);
3297 static void codec_set_power_save(struct hda_codec *codec, int delay)
3299 struct device *dev = hda_codec_dev(codec);
3301 if (delay == 0 && codec->auto_runtime_pm)
3305 pm_runtime_set_autosuspend_delay(dev, delay);
3306 pm_runtime_use_autosuspend(dev);
3307 pm_runtime_allow(dev);
3308 if (!pm_runtime_suspended(dev))
3309 pm_runtime_mark_last_busy(dev);
3311 pm_runtime_dont_use_autosuspend(dev);
3312 pm_runtime_forbid(dev);
3317 * snd_hda_set_power_save - reprogram autosuspend for the given delay
3318 * @bus: HD-audio bus
3319 * @delay: autosuspend delay in msec, 0 = off
3321 * Synchronize the runtime PM autosuspend state from the power_save option.
3323 void snd_hda_set_power_save(struct hda_bus *bus, int delay)
3325 struct hda_codec *c;
3327 list_for_each_codec(c, bus)
3328 codec_set_power_save(c, delay);
3330 EXPORT_SYMBOL_GPL(snd_hda_set_power_save);
3333 * snd_hda_check_amp_list_power - Check the amp list and update the power
3334 * @codec: HD-audio codec
3335 * @check: the object containing an AMP list and the status
3336 * @nid: NID to check / update
3338 * Check whether the given NID is in the amp list. If it's in the list,
3339 * check the current AMP status, and update the the power-status according
3340 * to the mute status.
3342 * This function is supposed to be set or called from the check_power_status
3345 int snd_hda_check_amp_list_power(struct hda_codec *codec,
3346 struct hda_loopback_check *check,
3349 const struct hda_amp_list *p;
3352 if (!check->amplist)
3354 for (p = check->amplist; p->nid; p++) {
3359 return 0; /* nothing changed */
3361 for (p = check->amplist; p->nid; p++) {
3362 for (ch = 0; ch < 2; ch++) {
3363 v = snd_hda_codec_amp_read(codec, p->nid, ch, p->dir,
3365 if (!(v & HDA_AMP_MUTE) && v > 0) {
3366 if (!check->power_on) {
3367 check->power_on = 1;
3368 snd_hda_power_up_pm(codec);
3374 if (check->power_on) {
3375 check->power_on = 0;
3376 snd_hda_power_down_pm(codec);
3380 EXPORT_SYMBOL_GPL(snd_hda_check_amp_list_power);
3388 * snd_hda_input_mux_info_info - Info callback helper for the input-mux enum
3389 * @imux: imux helper object
3390 * @uinfo: pointer to get/store the data
3392 int snd_hda_input_mux_info(const struct hda_input_mux *imux,
3393 struct snd_ctl_elem_info *uinfo)
3397 uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
3399 uinfo->value.enumerated.items = imux->num_items;
3400 if (!imux->num_items)
3402 index = uinfo->value.enumerated.item;
3403 if (index >= imux->num_items)
3404 index = imux->num_items - 1;
3405 strcpy(uinfo->value.enumerated.name, imux->items[index].label);
3408 EXPORT_SYMBOL_GPL(snd_hda_input_mux_info);
3411 * snd_hda_input_mux_info_put - Put callback helper for the input-mux enum
3412 * @codec: the HDA codec
3413 * @imux: imux helper object
3414 * @ucontrol: pointer to get/store the data
3415 * @nid: input mux NID
3416 * @cur_val: pointer to get/store the current imux value
3418 int snd_hda_input_mux_put(struct hda_codec *codec,
3419 const struct hda_input_mux *imux,
3420 struct snd_ctl_elem_value *ucontrol,
3422 unsigned int *cur_val)
3426 if (!imux->num_items)
3428 idx = ucontrol->value.enumerated.item[0];
3429 if (idx >= imux->num_items)
3430 idx = imux->num_items - 1;
3431 if (*cur_val == idx)
3433 snd_hda_codec_write_cache(codec, nid, 0, AC_VERB_SET_CONNECT_SEL,
3434 imux->items[idx].index);
3438 EXPORT_SYMBOL_GPL(snd_hda_input_mux_put);
3442 * snd_hda_enum_helper_info - Helper for simple enum ctls
3443 * @kcontrol: ctl element
3444 * @uinfo: pointer to get/store the data
3445 * @num_items: number of enum items
3446 * @texts: enum item string array
3448 * process kcontrol info callback of a simple string enum array
3449 * when @num_items is 0 or @texts is NULL, assume a boolean enum array
3451 int snd_hda_enum_helper_info(struct snd_kcontrol *kcontrol,
3452 struct snd_ctl_elem_info *uinfo,
3453 int num_items, const char * const *texts)
3455 static const char * const texts_default[] = {
3456 "Disabled", "Enabled"
3459 if (!texts || !num_items) {
3461 texts = texts_default;
3464 return snd_ctl_enum_info(uinfo, 1, num_items, texts);
3466 EXPORT_SYMBOL_GPL(snd_hda_enum_helper_info);
3469 * Multi-channel / digital-out PCM helper functions
3472 /* setup SPDIF output stream */
3473 static void setup_dig_out_stream(struct hda_codec *codec, hda_nid_t nid,
3474 unsigned int stream_tag, unsigned int format)
3476 struct hda_spdif_out *spdif;
3477 unsigned int curr_fmt;
3480 spdif = snd_hda_spdif_out_of_nid(codec, nid);
3481 /* Add sanity check to pass klockwork check.
3482 * This should never happen.
3484 if (WARN_ON(spdif == NULL))
3487 curr_fmt = snd_hda_codec_read(codec, nid, 0,
3488 AC_VERB_GET_STREAM_FORMAT, 0);
3489 reset = codec->spdif_status_reset &&
3490 (spdif->ctls & AC_DIG1_ENABLE) &&
3493 /* turn off SPDIF if needed; otherwise the IEC958 bits won't be
3496 set_dig_out_convert(codec, nid,
3497 spdif->ctls & ~AC_DIG1_ENABLE & 0xff,
3499 snd_hda_codec_setup_stream(codec, nid, stream_tag, 0, format);
3500 if (codec->slave_dig_outs) {
3502 for (d = codec->slave_dig_outs; *d; d++)
3503 snd_hda_codec_setup_stream(codec, *d, stream_tag, 0,
3506 /* turn on again (if needed) */
3508 set_dig_out_convert(codec, nid,
3509 spdif->ctls & 0xff, -1);
3512 static void cleanup_dig_out_stream(struct hda_codec *codec, hda_nid_t nid)
3514 snd_hda_codec_cleanup_stream(codec, nid);
3515 if (codec->slave_dig_outs) {
3517 for (d = codec->slave_dig_outs; *d; d++)
3518 snd_hda_codec_cleanup_stream(codec, *d);
3523 * snd_hda_multi_out_dig_open - open the digital out in the exclusive mode
3524 * @codec: the HDA codec
3525 * @mout: hda_multi_out object
3527 int snd_hda_multi_out_dig_open(struct hda_codec *codec,
3528 struct hda_multi_out *mout)
3530 mutex_lock(&codec->spdif_mutex);
3531 if (mout->dig_out_used == HDA_DIG_ANALOG_DUP)
3532 /* already opened as analog dup; reset it once */
3533 cleanup_dig_out_stream(codec, mout->dig_out_nid);
3534 mout->dig_out_used = HDA_DIG_EXCLUSIVE;
3535 mutex_unlock(&codec->spdif_mutex);
3538 EXPORT_SYMBOL_GPL(snd_hda_multi_out_dig_open);
3541 * snd_hda_multi_out_dig_prepare - prepare the digital out stream
3542 * @codec: the HDA codec
3543 * @mout: hda_multi_out object
3544 * @stream_tag: stream tag to assign
3545 * @format: format id to assign
3546 * @substream: PCM substream to assign
3548 int snd_hda_multi_out_dig_prepare(struct hda_codec *codec,
3549 struct hda_multi_out *mout,
3550 unsigned int stream_tag,
3551 unsigned int format,
3552 struct snd_pcm_substream *substream)
3554 mutex_lock(&codec->spdif_mutex);
3555 setup_dig_out_stream(codec, mout->dig_out_nid, stream_tag, format);
3556 mutex_unlock(&codec->spdif_mutex);
3559 EXPORT_SYMBOL_GPL(snd_hda_multi_out_dig_prepare);
3562 * snd_hda_multi_out_dig_cleanup - clean-up the digital out stream
3563 * @codec: the HDA codec
3564 * @mout: hda_multi_out object
3566 int snd_hda_multi_out_dig_cleanup(struct hda_codec *codec,
3567 struct hda_multi_out *mout)
3569 mutex_lock(&codec->spdif_mutex);
3570 cleanup_dig_out_stream(codec, mout->dig_out_nid);
3571 mutex_unlock(&codec->spdif_mutex);
3574 EXPORT_SYMBOL_GPL(snd_hda_multi_out_dig_cleanup);
3577 * snd_hda_multi_out_dig_close - release the digital out stream
3578 * @codec: the HDA codec
3579 * @mout: hda_multi_out object
3581 int snd_hda_multi_out_dig_close(struct hda_codec *codec,
3582 struct hda_multi_out *mout)
3584 mutex_lock(&codec->spdif_mutex);
3585 mout->dig_out_used = 0;
3586 mutex_unlock(&codec->spdif_mutex);
3589 EXPORT_SYMBOL_GPL(snd_hda_multi_out_dig_close);
3592 * snd_hda_multi_out_analog_open - open analog outputs
3593 * @codec: the HDA codec
3594 * @mout: hda_multi_out object
3595 * @substream: PCM substream to assign
3596 * @hinfo: PCM information to assign
3598 * Open analog outputs and set up the hw-constraints.
3599 * If the digital outputs can be opened as slave, open the digital
3602 int snd_hda_multi_out_analog_open(struct hda_codec *codec,
3603 struct hda_multi_out *mout,
3604 struct snd_pcm_substream *substream,
3605 struct hda_pcm_stream *hinfo)
3607 struct snd_pcm_runtime *runtime = substream->runtime;
3608 runtime->hw.channels_max = mout->max_channels;
3609 if (mout->dig_out_nid) {
3610 if (!mout->analog_rates) {
3611 mout->analog_rates = hinfo->rates;
3612 mout->analog_formats = hinfo->formats;
3613 mout->analog_maxbps = hinfo->maxbps;
3615 runtime->hw.rates = mout->analog_rates;
3616 runtime->hw.formats = mout->analog_formats;
3617 hinfo->maxbps = mout->analog_maxbps;
3619 if (!mout->spdif_rates) {
3620 snd_hda_query_supported_pcm(codec, mout->dig_out_nid,
3622 &mout->spdif_formats,
3623 &mout->spdif_maxbps);
3625 mutex_lock(&codec->spdif_mutex);
3626 if (mout->share_spdif) {
3627 if ((runtime->hw.rates & mout->spdif_rates) &&
3628 (runtime->hw.formats & mout->spdif_formats)) {
3629 runtime->hw.rates &= mout->spdif_rates;
3630 runtime->hw.formats &= mout->spdif_formats;
3631 if (mout->spdif_maxbps < hinfo->maxbps)
3632 hinfo->maxbps = mout->spdif_maxbps;
3634 mout->share_spdif = 0;
3635 /* FIXME: need notify? */
3638 mutex_unlock(&codec->spdif_mutex);
3640 return snd_pcm_hw_constraint_step(substream->runtime, 0,
3641 SNDRV_PCM_HW_PARAM_CHANNELS, 2);
3643 EXPORT_SYMBOL_GPL(snd_hda_multi_out_analog_open);
3646 * snd_hda_multi_out_analog_prepare - Preapre the analog outputs.
3647 * @codec: the HDA codec
3648 * @mout: hda_multi_out object
3649 * @stream_tag: stream tag to assign
3650 * @format: format id to assign
3651 * @substream: PCM substream to assign
3653 * Set up the i/o for analog out.
3654 * When the digital out is available, copy the front out to digital out, too.
3656 int snd_hda_multi_out_analog_prepare(struct hda_codec *codec,
3657 struct hda_multi_out *mout,
3658 unsigned int stream_tag,
3659 unsigned int format,
3660 struct snd_pcm_substream *substream)
3662 const hda_nid_t *nids = mout->dac_nids;
3663 int chs = substream->runtime->channels;
3664 struct hda_spdif_out *spdif;
3667 mutex_lock(&codec->spdif_mutex);
3668 spdif = snd_hda_spdif_out_of_nid(codec, mout->dig_out_nid);
3669 if (mout->dig_out_nid && mout->share_spdif &&
3670 mout->dig_out_used != HDA_DIG_EXCLUSIVE) {
3671 if (chs == 2 && spdif != NULL &&
3672 snd_hda_is_supported_format(codec, mout->dig_out_nid,
3674 !(spdif->status & IEC958_AES0_NONAUDIO)) {
3675 mout->dig_out_used = HDA_DIG_ANALOG_DUP;
3676 setup_dig_out_stream(codec, mout->dig_out_nid,
3677 stream_tag, format);
3679 mout->dig_out_used = 0;
3680 cleanup_dig_out_stream(codec, mout->dig_out_nid);
3683 mutex_unlock(&codec->spdif_mutex);
3686 snd_hda_codec_setup_stream(codec, nids[HDA_FRONT], stream_tag,
3688 if (!mout->no_share_stream &&
3689 mout->hp_nid && mout->hp_nid != nids[HDA_FRONT])
3690 /* headphone out will just decode front left/right (stereo) */
3691 snd_hda_codec_setup_stream(codec, mout->hp_nid, stream_tag,
3693 /* extra outputs copied from front */
3694 for (i = 0; i < ARRAY_SIZE(mout->hp_out_nid); i++)
3695 if (!mout->no_share_stream && mout->hp_out_nid[i])
3696 snd_hda_codec_setup_stream(codec,
3697 mout->hp_out_nid[i],
3698 stream_tag, 0, format);
3701 for (i = 1; i < mout->num_dacs; i++) {
3702 if (chs >= (i + 1) * 2) /* independent out */
3703 snd_hda_codec_setup_stream(codec, nids[i], stream_tag,
3705 else if (!mout->no_share_stream) /* copy front */
3706 snd_hda_codec_setup_stream(codec, nids[i], stream_tag,
3710 /* extra surrounds */
3711 for (i = 0; i < ARRAY_SIZE(mout->extra_out_nid); i++) {
3713 if (!mout->extra_out_nid[i])
3715 if (chs >= (i + 1) * 2)
3717 else if (!mout->no_share_stream)
3719 snd_hda_codec_setup_stream(codec, mout->extra_out_nid[i],
3720 stream_tag, ch, format);
3725 EXPORT_SYMBOL_GPL(snd_hda_multi_out_analog_prepare);
3728 * snd_hda_multi_out_analog_cleanup - clean up the setting for analog out
3729 * @codec: the HDA codec
3730 * @mout: hda_multi_out object
3732 int snd_hda_multi_out_analog_cleanup(struct hda_codec *codec,
3733 struct hda_multi_out *mout)
3735 const hda_nid_t *nids = mout->dac_nids;
3738 for (i = 0; i < mout->num_dacs; i++)
3739 snd_hda_codec_cleanup_stream(codec, nids[i]);
3741 snd_hda_codec_cleanup_stream(codec, mout->hp_nid);
3742 for (i = 0; i < ARRAY_SIZE(mout->hp_out_nid); i++)
3743 if (mout->hp_out_nid[i])
3744 snd_hda_codec_cleanup_stream(codec,
3745 mout->hp_out_nid[i]);
3746 for (i = 0; i < ARRAY_SIZE(mout->extra_out_nid); i++)
3747 if (mout->extra_out_nid[i])
3748 snd_hda_codec_cleanup_stream(codec,
3749 mout->extra_out_nid[i]);
3750 mutex_lock(&codec->spdif_mutex);
3751 if (mout->dig_out_nid && mout->dig_out_used == HDA_DIG_ANALOG_DUP) {
3752 cleanup_dig_out_stream(codec, mout->dig_out_nid);
3753 mout->dig_out_used = 0;
3755 mutex_unlock(&codec->spdif_mutex);
3758 EXPORT_SYMBOL_GPL(snd_hda_multi_out_analog_cleanup);
3761 * snd_hda_get_default_vref - Get the default (mic) VREF pin bits
3762 * @codec: the HDA codec
3763 * @pin: referred pin NID
3765 * Guess the suitable VREF pin bits to be set as the pin-control value.
3766 * Note: the function doesn't set the AC_PINCTL_IN_EN bit.
3768 unsigned int snd_hda_get_default_vref(struct hda_codec *codec, hda_nid_t pin)
3770 unsigned int pincap;
3771 unsigned int oldval;
3772 oldval = snd_hda_codec_read(codec, pin, 0,
3773 AC_VERB_GET_PIN_WIDGET_CONTROL, 0);
3774 pincap = snd_hda_query_pin_caps(codec, pin);
3775 pincap = (pincap & AC_PINCAP_VREF) >> AC_PINCAP_VREF_SHIFT;
3776 /* Exception: if the default pin setup is vref50, we give it priority */
3777 if ((pincap & AC_PINCAP_VREF_80) && oldval != PIN_VREF50)
3778 return AC_PINCTL_VREF_80;
3779 else if (pincap & AC_PINCAP_VREF_50)
3780 return AC_PINCTL_VREF_50;
3781 else if (pincap & AC_PINCAP_VREF_100)
3782 return AC_PINCTL_VREF_100;
3783 else if (pincap & AC_PINCAP_VREF_GRD)
3784 return AC_PINCTL_VREF_GRD;
3785 return AC_PINCTL_VREF_HIZ;
3787 EXPORT_SYMBOL_GPL(snd_hda_get_default_vref);
3790 * snd_hda_correct_pin_ctl - correct the pin ctl value for matching with the pin cap
3791 * @codec: the HDA codec
3792 * @pin: referred pin NID
3793 * @val: pin ctl value to audit
3795 unsigned int snd_hda_correct_pin_ctl(struct hda_codec *codec,
3796 hda_nid_t pin, unsigned int val)
3798 static unsigned int cap_lists[][2] = {
3799 { AC_PINCTL_VREF_100, AC_PINCAP_VREF_100 },
3800 { AC_PINCTL_VREF_80, AC_PINCAP_VREF_80 },
3801 { AC_PINCTL_VREF_50, AC_PINCAP_VREF_50 },
3802 { AC_PINCTL_VREF_GRD, AC_PINCAP_VREF_GRD },
3808 cap = snd_hda_query_pin_caps(codec, pin);
3810 return val; /* don't know what to do... */
3812 if (val & AC_PINCTL_OUT_EN) {
3813 if (!(cap & AC_PINCAP_OUT))
3814 val &= ~(AC_PINCTL_OUT_EN | AC_PINCTL_HP_EN);
3815 else if ((val & AC_PINCTL_HP_EN) && !(cap & AC_PINCAP_HP_DRV))
3816 val &= ~AC_PINCTL_HP_EN;
3819 if (val & AC_PINCTL_IN_EN) {
3820 if (!(cap & AC_PINCAP_IN))
3821 val &= ~(AC_PINCTL_IN_EN | AC_PINCTL_VREFEN);
3823 unsigned int vcap, vref;
3825 vcap = (cap & AC_PINCAP_VREF) >> AC_PINCAP_VREF_SHIFT;
3826 vref = val & AC_PINCTL_VREFEN;
3827 for (i = 0; i < ARRAY_SIZE(cap_lists); i++) {
3828 if (vref == cap_lists[i][0] &&
3829 !(vcap & cap_lists[i][1])) {
3830 if (i == ARRAY_SIZE(cap_lists) - 1)
3831 vref = AC_PINCTL_VREF_HIZ;
3833 vref = cap_lists[i + 1][0];
3836 val &= ~AC_PINCTL_VREFEN;
3843 EXPORT_SYMBOL_GPL(snd_hda_correct_pin_ctl);
3846 * _snd_hda_pin_ctl - Helper to set pin ctl value
3847 * @codec: the HDA codec
3848 * @pin: referred pin NID
3849 * @val: pin control value to set
3850 * @cached: access over codec pinctl cache or direct write
3852 * This function is a helper to set a pin ctl value more safely.
3853 * It corrects the pin ctl value via snd_hda_correct_pin_ctl(), stores the
3854 * value in pin target array via snd_hda_codec_set_pin_target(), then
3855 * actually writes the value via either snd_hda_codec_update_cache() or
3856 * snd_hda_codec_write() depending on @cached flag.
3858 int _snd_hda_set_pin_ctl(struct hda_codec *codec, hda_nid_t pin,
3859 unsigned int val, bool cached)
3861 val = snd_hda_correct_pin_ctl(codec, pin, val);
3862 snd_hda_codec_set_pin_target(codec, pin, val);
3864 return snd_hda_codec_update_cache(codec, pin, 0,
3865 AC_VERB_SET_PIN_WIDGET_CONTROL, val);
3867 return snd_hda_codec_write(codec, pin, 0,
3868 AC_VERB_SET_PIN_WIDGET_CONTROL, val);
3870 EXPORT_SYMBOL_GPL(_snd_hda_set_pin_ctl);
3873 * snd_hda_add_imux_item - Add an item to input_mux
3874 * @codec: the HDA codec
3875 * @imux: imux helper object
3876 * @label: the name of imux item to assign
3877 * @index: index number of imux item to assign
3878 * @type_idx: pointer to store the resultant label index
3880 * When the same label is used already in the existing items, the number
3881 * suffix is appended to the label. This label index number is stored
3882 * to type_idx when non-NULL pointer is given.
3884 int snd_hda_add_imux_item(struct hda_codec *codec,
3885 struct hda_input_mux *imux, const char *label,
3886 int index, int *type_idx)
3888 int i, label_idx = 0;
3889 if (imux->num_items >= HDA_MAX_NUM_INPUTS) {
3890 codec_err(codec, "hda_codec: Too many imux items!\n");
3893 for (i = 0; i < imux->num_items; i++) {
3894 if (!strncmp(label, imux->items[i].label, strlen(label)))
3898 *type_idx = label_idx;
3900 snprintf(imux->items[imux->num_items].label,
3901 sizeof(imux->items[imux->num_items].label),
3902 "%s %d", label, label_idx);
3904 strlcpy(imux->items[imux->num_items].label, label,
3905 sizeof(imux->items[imux->num_items].label));
3906 imux->items[imux->num_items].index = index;
3910 EXPORT_SYMBOL_GPL(snd_hda_add_imux_item);
3913 * snd_hda_bus_reset_codecs - Reset the bus
3914 * @bus: HD-audio bus
3916 void snd_hda_bus_reset_codecs(struct hda_bus *bus)
3918 struct hda_codec *codec;
3920 list_for_each_codec(codec, bus) {
3921 /* FIXME: maybe a better way needed for forced reset */
3922 cancel_delayed_work_sync(&codec->jackpoll_work);
3924 if (hda_codec_is_power_on(codec)) {
3925 hda_call_codec_suspend(codec);
3926 hda_call_codec_resume(codec);
3933 * snd_print_pcm_bits - Print the supported PCM fmt bits to the string buffer
3934 * @pcm: PCM caps bits
3935 * @buf: the string buffer to write
3936 * @buflen: the max buffer length
3938 * used by hda_proc.c and hda_eld.c
3940 void snd_print_pcm_bits(int pcm, char *buf, int buflen)
3942 static unsigned int bits[] = { 8, 16, 20, 24, 32 };
3945 for (i = 0, j = 0; i < ARRAY_SIZE(bits); i++)
3946 if (pcm & (AC_SUPPCM_BITS_8 << i))
3947 j += snprintf(buf + j, buflen - j, " %d", bits[i]);
3949 buf[j] = '\0'; /* necessary when j == 0 */
3951 EXPORT_SYMBOL_GPL(snd_print_pcm_bits);
3953 MODULE_DESCRIPTION("HDA codec core");
3954 MODULE_LICENSE("GPL");