1 // SPDX-License-Identifier: GPL-2.0-or-later
3 * Universal Interface for Intel High Definition Audio Codec
5 * Copyright (c) 2004 Takashi Iwai <tiwai@suse.de>
8 #include <linux/init.h>
9 #include <linux/delay.h>
10 #include <linux/slab.h>
11 #include <linux/mutex.h>
12 #include <linux/module.h>
14 #include <linux/pm_runtime.h>
15 #include <sound/core.h>
16 #include <sound/hda_codec.h>
17 #include <sound/asoundef.h>
18 #include <sound/tlv.h>
19 #include <sound/initval.h>
20 #include <sound/jack.h>
21 #include "hda_local.h"
24 #include <sound/hda_hwdep.h>
25 #include <sound/hda_component.h>
27 #define codec_in_pm(codec) snd_hdac_is_in_pm(&codec->core)
28 #define hda_codec_is_power_on(codec) snd_hdac_is_power_on(&codec->core)
29 #define codec_has_epss(codec) \
30 ((codec)->core.power_caps & AC_PWRST_EPSS)
31 #define codec_has_clkstop(codec) \
32 ((codec)->core.power_caps & AC_PWRST_CLKSTOP)
35 * Send and receive a verb - passed to exec_verb override for hdac_device
37 static int codec_exec_verb(struct hdac_device *dev, unsigned int cmd,
38 unsigned int flags, unsigned int *res)
40 struct hda_codec *codec = container_of(dev, struct hda_codec, core);
41 struct hda_bus *bus = codec->bus;
48 snd_hda_power_up_pm(codec);
49 mutex_lock(&bus->core.cmd_mutex);
50 if (flags & HDA_RW_NO_RESPONSE_FALLBACK)
51 bus->no_response_fallback = 1;
52 err = snd_hdac_bus_exec_verb_unlocked(&bus->core, codec->core.addr,
54 bus->no_response_fallback = 0;
55 mutex_unlock(&bus->core.cmd_mutex);
56 snd_hda_power_down_pm(codec);
57 if (!codec_in_pm(codec) && res && err == -EAGAIN) {
58 if (bus->response_reset) {
60 "resetting BUS due to fatal communication error\n");
61 snd_hda_bus_reset(bus);
65 /* clear reset-flag when the communication gets recovered */
66 if (!err || codec_in_pm(codec))
67 bus->response_reset = 0;
72 * snd_hda_sequence_write - sequence writes
73 * @codec: the HDA codec
74 * @seq: VERB array to send
76 * Send the commands sequentially from the given array.
77 * The array must be terminated with NID=0.
79 void snd_hda_sequence_write(struct hda_codec *codec, const struct hda_verb *seq)
81 for (; seq->nid; seq++)
82 snd_hda_codec_write(codec, seq->nid, 0, seq->verb, seq->param);
84 EXPORT_SYMBOL_GPL(snd_hda_sequence_write);
86 /* connection list element */
87 struct hda_conn_list {
88 struct list_head list;
94 /* look up the cached results */
95 static struct hda_conn_list *
96 lookup_conn_list(struct hda_codec *codec, hda_nid_t nid)
98 struct hda_conn_list *p;
99 list_for_each_entry(p, &codec->conn_list, list) {
106 static int add_conn_list(struct hda_codec *codec, hda_nid_t nid, int len,
107 const hda_nid_t *list)
109 struct hda_conn_list *p;
111 p = kmalloc(struct_size(p, conns, len), GFP_KERNEL);
116 memcpy(p->conns, list, len * sizeof(hda_nid_t));
117 list_add(&p->list, &codec->conn_list);
121 static void remove_conn_list(struct hda_codec *codec)
123 while (!list_empty(&codec->conn_list)) {
124 struct hda_conn_list *p;
125 p = list_first_entry(&codec->conn_list, typeof(*p), list);
131 /* read the connection and add to the cache */
132 static int read_and_add_raw_conns(struct hda_codec *codec, hda_nid_t nid)
135 hda_nid_t *result = list;
138 len = snd_hda_get_raw_connections(codec, nid, list, ARRAY_SIZE(list));
139 if (len == -ENOSPC) {
140 len = snd_hda_get_num_raw_conns(codec, nid);
141 result = kmalloc_array(len, sizeof(hda_nid_t), GFP_KERNEL);
144 len = snd_hda_get_raw_connections(codec, nid, result, len);
147 len = snd_hda_override_conn_list(codec, nid, len, result);
154 * snd_hda_get_conn_list - get connection list
155 * @codec: the HDA codec
157 * @listp: the pointer to store NID list
159 * Parses the connection list of the given widget and stores the pointer
160 * to the list of NIDs.
162 * Returns the number of connections, or a negative error code.
164 * Note that the returned pointer isn't protected against the list
165 * modification. If snd_hda_override_conn_list() might be called
166 * concurrently, protect with a mutex appropriately.
168 int snd_hda_get_conn_list(struct hda_codec *codec, hda_nid_t nid,
169 const hda_nid_t **listp)
175 const struct hda_conn_list *p;
177 /* if the connection-list is already cached, read it */
178 p = lookup_conn_list(codec, nid);
184 if (snd_BUG_ON(added))
187 err = read_and_add_raw_conns(codec, nid);
193 EXPORT_SYMBOL_GPL(snd_hda_get_conn_list);
196 * snd_hda_get_connections - copy connection list
197 * @codec: the HDA codec
199 * @conn_list: connection list array; when NULL, checks only the size
200 * @max_conns: max. number of connections to store
202 * Parses the connection list of the given widget and stores the list
205 * Returns the number of connections, or a negative error code.
207 int snd_hda_get_connections(struct hda_codec *codec, hda_nid_t nid,
208 hda_nid_t *conn_list, int max_conns)
210 const hda_nid_t *list;
211 int len = snd_hda_get_conn_list(codec, nid, &list);
213 if (len > 0 && conn_list) {
214 if (len > max_conns) {
215 codec_err(codec, "Too many connections %d for NID 0x%x\n",
219 memcpy(conn_list, list, len * sizeof(hda_nid_t));
224 EXPORT_SYMBOL_GPL(snd_hda_get_connections);
227 * snd_hda_override_conn_list - add/modify the connection-list to cache
228 * @codec: the HDA codec
230 * @len: number of connection list entries
231 * @list: the list of connection entries
233 * Add or modify the given connection-list to the cache. If the corresponding
234 * cache already exists, invalidate it and append a new one.
236 * Returns zero or a negative error code.
238 int snd_hda_override_conn_list(struct hda_codec *codec, hda_nid_t nid, int len,
239 const hda_nid_t *list)
241 struct hda_conn_list *p;
243 p = lookup_conn_list(codec, nid);
249 return add_conn_list(codec, nid, len, list);
251 EXPORT_SYMBOL_GPL(snd_hda_override_conn_list);
254 * snd_hda_get_conn_index - get the connection index of the given NID
255 * @codec: the HDA codec
256 * @mux: NID containing the list
257 * @nid: NID to select
258 * @recursive: 1 when searching NID recursively, otherwise 0
260 * Parses the connection list of the widget @mux and checks whether the
261 * widget @nid is present. If it is, return the connection index.
262 * Otherwise it returns -1.
264 int snd_hda_get_conn_index(struct hda_codec *codec, hda_nid_t mux,
265 hda_nid_t nid, int recursive)
267 const hda_nid_t *conn;
270 nums = snd_hda_get_conn_list(codec, mux, &conn);
271 for (i = 0; i < nums; i++)
276 if (recursive > 10) {
277 codec_dbg(codec, "too deep connection for 0x%x\n", nid);
281 for (i = 0; i < nums; i++) {
282 unsigned int type = get_wcaps_type(get_wcaps(codec, conn[i]));
283 if (type == AC_WID_PIN || type == AC_WID_AUD_OUT)
285 if (snd_hda_get_conn_index(codec, conn[i], nid, recursive) >= 0)
290 EXPORT_SYMBOL_GPL(snd_hda_get_conn_index);
293 * snd_hda_get_num_devices - get DEVLIST_LEN parameter of the given widget
294 * @codec: the HDA codec
295 * @nid: NID of the pin to parse
297 * Get the device entry number on the given widget. This is a feature of
298 * DP MST audio. Each pin can have several device entries in it.
300 unsigned int snd_hda_get_num_devices(struct hda_codec *codec, hda_nid_t nid)
302 unsigned int wcaps = get_wcaps(codec, nid);
305 if (!codec->dp_mst || !(wcaps & AC_WCAP_DIGITAL) ||
306 get_wcaps_type(wcaps) != AC_WID_PIN)
309 parm = snd_hdac_read_parm_uncached(&codec->core, nid, AC_PAR_DEVLIST_LEN);
312 return parm & AC_DEV_LIST_LEN_MASK;
314 EXPORT_SYMBOL_GPL(snd_hda_get_num_devices);
317 * snd_hda_get_devices - copy device list without cache
318 * @codec: the HDA codec
319 * @nid: NID of the pin to parse
320 * @dev_list: device list array
321 * @max_devices: max. number of devices to store
323 * Copy the device list. This info is dynamic and so not cached.
324 * Currently called only from hda_proc.c, so not exported.
326 int snd_hda_get_devices(struct hda_codec *codec, hda_nid_t nid,
327 u8 *dev_list, int max_devices)
330 int i, dev_len, devices;
332 parm = snd_hda_get_num_devices(codec, nid);
333 if (!parm) /* not multi-stream capable */
337 dev_len = dev_len < max_devices ? dev_len : max_devices;
340 while (devices < dev_len) {
341 if (snd_hdac_read(&codec->core, nid,
342 AC_VERB_GET_DEVICE_LIST, devices, &parm))
345 for (i = 0; i < 8; i++) {
346 dev_list[devices] = (u8)parm;
349 if (devices >= dev_len)
357 * snd_hda_get_dev_select - get device entry select on the pin
358 * @codec: the HDA codec
359 * @nid: NID of the pin to get device entry select
361 * Get the devcie entry select on the pin. Return the device entry
362 * id selected on the pin. Return 0 means the first device entry
363 * is selected or MST is not supported.
365 int snd_hda_get_dev_select(struct hda_codec *codec, hda_nid_t nid)
367 /* not support dp_mst will always return 0, using first dev_entry */
371 return snd_hda_codec_read(codec, nid, 0, AC_VERB_GET_DEVICE_SEL, 0);
373 EXPORT_SYMBOL_GPL(snd_hda_get_dev_select);
376 * snd_hda_set_dev_select - set device entry select on the pin
377 * @codec: the HDA codec
378 * @nid: NID of the pin to set device entry select
379 * @dev_id: device entry id to be set
381 * Set the device entry select on the pin nid.
383 int snd_hda_set_dev_select(struct hda_codec *codec, hda_nid_t nid, int dev_id)
385 int ret, num_devices;
387 /* not support dp_mst will always return 0, using first dev_entry */
391 /* AC_PAR_DEVLIST_LEN is 0 based. */
392 num_devices = snd_hda_get_num_devices(codec, nid) + 1;
393 /* If Device List Length is 0 (num_device = 1),
394 * the pin is not multi stream capable.
395 * Do nothing in this case.
397 if (num_devices == 1)
400 /* Behavior of setting index being equal to or greater than
401 * Device List Length is not predictable
403 if (num_devices <= dev_id)
406 ret = snd_hda_codec_write(codec, nid, 0,
407 AC_VERB_SET_DEVICE_SEL, dev_id);
411 EXPORT_SYMBOL_GPL(snd_hda_set_dev_select);
414 * read widget caps for each widget and store in cache
416 static int read_widget_caps(struct hda_codec *codec, hda_nid_t fg_node)
421 codec->wcaps = kmalloc_array(codec->core.num_nodes, 4, GFP_KERNEL);
424 nid = codec->core.start_nid;
425 for (i = 0; i < codec->core.num_nodes; i++, nid++)
426 codec->wcaps[i] = snd_hdac_read_parm_uncached(&codec->core,
427 nid, AC_PAR_AUDIO_WIDGET_CAP);
431 /* read all pin default configurations and save codec->init_pins */
432 static int read_pin_defaults(struct hda_codec *codec)
436 for_each_hda_codec_node(nid, codec) {
437 struct hda_pincfg *pin;
438 unsigned int wcaps = get_wcaps(codec, nid);
439 unsigned int wid_type = get_wcaps_type(wcaps);
440 if (wid_type != AC_WID_PIN)
442 pin = snd_array_new(&codec->init_pins);
446 pin->cfg = snd_hda_codec_read(codec, nid, 0,
447 AC_VERB_GET_CONFIG_DEFAULT, 0);
449 * all device entries are the same widget control so far
450 * fixme: if any codec is different, need fix here
452 pin->ctrl = snd_hda_codec_read(codec, nid, 0,
453 AC_VERB_GET_PIN_WIDGET_CONTROL,
459 /* look up the given pin config list and return the item matching with NID */
460 static struct hda_pincfg *look_up_pincfg(struct hda_codec *codec,
461 struct snd_array *array,
464 struct hda_pincfg *pin;
467 snd_array_for_each(array, i, pin) {
474 /* set the current pin config value for the given NID.
475 * the value is cached, and read via snd_hda_codec_get_pincfg()
477 int snd_hda_add_pincfg(struct hda_codec *codec, struct snd_array *list,
478 hda_nid_t nid, unsigned int cfg)
480 struct hda_pincfg *pin;
482 /* the check below may be invalid when pins are added by a fixup
483 * dynamically (e.g. via snd_hda_codec_update_widgets()), so disabled
487 if (get_wcaps_type(get_wcaps(codec, nid)) != AC_WID_PIN)
491 pin = look_up_pincfg(codec, list, nid);
493 pin = snd_array_new(list);
503 * snd_hda_codec_set_pincfg - Override a pin default configuration
504 * @codec: the HDA codec
505 * @nid: NID to set the pin config
506 * @cfg: the pin default config value
508 * Override a pin default configuration value in the cache.
509 * This value can be read by snd_hda_codec_get_pincfg() in a higher
510 * priority than the real hardware value.
512 int snd_hda_codec_set_pincfg(struct hda_codec *codec,
513 hda_nid_t nid, unsigned int cfg)
515 return snd_hda_add_pincfg(codec, &codec->driver_pins, nid, cfg);
517 EXPORT_SYMBOL_GPL(snd_hda_codec_set_pincfg);
520 * snd_hda_codec_get_pincfg - Obtain a pin-default configuration
521 * @codec: the HDA codec
522 * @nid: NID to get the pin config
524 * Get the current pin config value of the given pin NID.
525 * If the pincfg value is cached or overridden via sysfs or driver,
526 * returns the cached value.
528 unsigned int snd_hda_codec_get_pincfg(struct hda_codec *codec, hda_nid_t nid)
530 struct hda_pincfg *pin;
532 #ifdef CONFIG_SND_HDA_RECONFIG
534 unsigned int cfg = 0;
535 mutex_lock(&codec->user_mutex);
536 pin = look_up_pincfg(codec, &codec->user_pins, nid);
539 mutex_unlock(&codec->user_mutex);
544 pin = look_up_pincfg(codec, &codec->driver_pins, nid);
547 pin = look_up_pincfg(codec, &codec->init_pins, nid);
552 EXPORT_SYMBOL_GPL(snd_hda_codec_get_pincfg);
555 * snd_hda_codec_set_pin_target - remember the current pinctl target value
556 * @codec: the HDA codec
558 * @val: assigned pinctl value
560 * This function stores the given value to a pinctl target value in the
561 * pincfg table. This isn't always as same as the actually written value
562 * but can be referred at any time via snd_hda_codec_get_pin_target().
564 int snd_hda_codec_set_pin_target(struct hda_codec *codec, hda_nid_t nid,
567 struct hda_pincfg *pin;
569 pin = look_up_pincfg(codec, &codec->init_pins, nid);
575 EXPORT_SYMBOL_GPL(snd_hda_codec_set_pin_target);
578 * snd_hda_codec_get_pin_target - return the current pinctl target value
579 * @codec: the HDA codec
582 int snd_hda_codec_get_pin_target(struct hda_codec *codec, hda_nid_t nid)
584 struct hda_pincfg *pin;
586 pin = look_up_pincfg(codec, &codec->init_pins, nid);
591 EXPORT_SYMBOL_GPL(snd_hda_codec_get_pin_target);
594 * snd_hda_shutup_pins - Shut up all pins
595 * @codec: the HDA codec
597 * Clear all pin controls to shup up before suspend for avoiding click noise.
598 * The controls aren't cached so that they can be resumed properly.
600 void snd_hda_shutup_pins(struct hda_codec *codec)
602 const struct hda_pincfg *pin;
605 /* don't shut up pins when unloading the driver; otherwise it breaks
606 * the default pin setup at the next load of the driver
608 if (codec->bus->shutdown)
610 snd_array_for_each(&codec->init_pins, i, pin) {
611 /* use read here for syncing after issuing each verb */
612 snd_hda_codec_read(codec, pin->nid, 0,
613 AC_VERB_SET_PIN_WIDGET_CONTROL, 0);
615 codec->pins_shutup = 1;
617 EXPORT_SYMBOL_GPL(snd_hda_shutup_pins);
620 /* Restore the pin controls cleared previously via snd_hda_shutup_pins() */
621 static void restore_shutup_pins(struct hda_codec *codec)
623 const struct hda_pincfg *pin;
626 if (!codec->pins_shutup)
628 if (codec->bus->shutdown)
630 snd_array_for_each(&codec->init_pins, i, pin) {
631 snd_hda_codec_write(codec, pin->nid, 0,
632 AC_VERB_SET_PIN_WIDGET_CONTROL,
635 codec->pins_shutup = 0;
639 static void hda_jackpoll_work(struct work_struct *work)
641 struct hda_codec *codec =
642 container_of(work, struct hda_codec, jackpoll_work.work);
644 /* for non-polling trigger: we need nothing if already powered on */
645 if (!codec->jackpoll_interval && snd_hdac_is_power_on(&codec->core))
648 /* the power-up/down sequence triggers the runtime resume */
649 snd_hda_power_up_pm(codec);
650 /* update jacks manually if polling is required, too */
651 if (codec->jackpoll_interval) {
652 snd_hda_jack_set_dirty_all(codec);
653 snd_hda_jack_poll_all(codec);
655 snd_hda_power_down_pm(codec);
657 if (!codec->jackpoll_interval)
660 schedule_delayed_work(&codec->jackpoll_work,
661 codec->jackpoll_interval);
664 /* release all pincfg lists */
665 static void free_init_pincfgs(struct hda_codec *codec)
667 snd_array_free(&codec->driver_pins);
668 #ifdef CONFIG_SND_HDA_RECONFIG
669 snd_array_free(&codec->user_pins);
671 snd_array_free(&codec->init_pins);
675 * audio-converter setup caches
677 struct hda_cvt_setup {
682 unsigned char active; /* cvt is currently used */
683 unsigned char dirty; /* setups should be cleared */
686 /* get or create a cache entry for the given audio converter NID */
687 static struct hda_cvt_setup *
688 get_hda_cvt_setup(struct hda_codec *codec, hda_nid_t nid)
690 struct hda_cvt_setup *p;
693 snd_array_for_each(&codec->cvt_setups, i, p) {
697 p = snd_array_new(&codec->cvt_setups);
706 static void release_pcm(struct kref *kref)
708 struct hda_pcm *pcm = container_of(kref, struct hda_pcm, kref);
711 snd_device_free(pcm->codec->card, pcm->pcm);
712 clear_bit(pcm->device, pcm->codec->bus->pcm_dev_bits);
717 void snd_hda_codec_pcm_put(struct hda_pcm *pcm)
719 kref_put(&pcm->kref, release_pcm);
721 EXPORT_SYMBOL_GPL(snd_hda_codec_pcm_put);
723 struct hda_pcm *snd_hda_codec_pcm_new(struct hda_codec *codec,
724 const char *fmt, ...)
729 pcm = kzalloc(sizeof(*pcm), GFP_KERNEL);
734 kref_init(&pcm->kref);
736 pcm->name = kvasprintf(GFP_KERNEL, fmt, args);
743 list_add_tail(&pcm->list, &codec->pcm_list_head);
746 EXPORT_SYMBOL_GPL(snd_hda_codec_pcm_new);
751 static void codec_release_pcms(struct hda_codec *codec)
753 struct hda_pcm *pcm, *n;
755 list_for_each_entry_safe(pcm, n, &codec->pcm_list_head, list) {
756 list_del_init(&pcm->list);
758 snd_device_disconnect(codec->card, pcm->pcm);
759 snd_hda_codec_pcm_put(pcm);
763 void snd_hda_codec_cleanup_for_unbind(struct hda_codec *codec)
765 if (codec->registered) {
766 /* pm_runtime_put() is called in snd_hdac_device_exit() */
767 pm_runtime_get_noresume(hda_codec_dev(codec));
768 pm_runtime_disable(hda_codec_dev(codec));
769 codec->registered = 0;
772 cancel_delayed_work_sync(&codec->jackpoll_work);
773 if (!codec->in_freeing)
774 snd_hda_ctls_clear(codec);
775 codec_release_pcms(codec);
776 snd_hda_detach_beep_device(codec);
777 memset(&codec->patch_ops, 0, sizeof(codec->patch_ops));
778 snd_hda_jack_tbl_clear(codec);
779 codec->proc_widget_hook = NULL;
782 /* free only driver_pins so that init_pins + user_pins are restored */
783 snd_array_free(&codec->driver_pins);
784 snd_array_free(&codec->cvt_setups);
785 snd_array_free(&codec->spdif_out);
786 snd_array_free(&codec->verbs);
787 codec->preset = NULL;
788 codec->follower_dig_outs = NULL;
789 codec->spdif_status_reset = 0;
790 snd_array_free(&codec->mixers);
791 snd_array_free(&codec->nids);
792 remove_conn_list(codec);
793 snd_hdac_regmap_exit(&codec->core);
795 EXPORT_SYMBOL_GPL(snd_hda_codec_cleanup_for_unbind);
797 static unsigned int hda_set_power_state(struct hda_codec *codec,
798 unsigned int power_state);
800 /* enable/disable display power per codec */
801 void snd_hda_codec_display_power(struct hda_codec *codec, bool enable)
803 if (codec->display_power_control)
804 snd_hdac_display_power(&codec->bus->core, codec->addr, enable);
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_codec_display_power(codec, true);
814 pm_runtime_enable(hda_codec_dev(codec));
815 /* it was powered up in snd_hda_codec_new(), now all done */
816 snd_hda_power_down(codec);
817 codec->registered = 1;
821 static int snd_hda_codec_dev_register(struct snd_device *device)
823 snd_hda_codec_register(device->device_data);
827 static int snd_hda_codec_dev_free(struct snd_device *device)
829 struct hda_codec *codec = device->device_data;
831 codec->in_freeing = 1;
833 * snd_hda_codec_device_new() is used by legacy HDA and ASoC driver.
834 * We can't unregister ASoC device since it will be unregistered in
835 * snd_hdac_ext_bus_device_remove().
837 if (codec->core.type == HDA_DEV_LEGACY)
838 snd_hdac_device_unregister(&codec->core);
839 snd_hda_codec_display_power(codec, false);
842 * In the case of ASoC HD-audio bus, the device refcount is released in
843 * snd_hdac_ext_bus_device_remove() explicitly.
845 if (codec->core.type == HDA_DEV_LEGACY)
846 put_device(hda_codec_dev(codec));
851 static void snd_hda_codec_dev_release(struct device *dev)
853 struct hda_codec *codec = dev_to_hda_codec(dev);
855 free_init_pincfgs(codec);
856 snd_hdac_device_exit(&codec->core);
857 snd_hda_sysfs_clear(codec);
858 kfree(codec->modelname);
862 * In the case of ASoC HD-audio, hda_codec is device managed.
863 * It will be freed when the ASoC device is removed.
865 if (codec->core.type == HDA_DEV_LEGACY)
869 #define DEV_NAME_LEN 31
871 static int snd_hda_codec_device_init(struct hda_bus *bus, struct snd_card *card,
872 unsigned int codec_addr, struct hda_codec **codecp)
874 char name[DEV_NAME_LEN];
875 struct hda_codec *codec;
878 dev_dbg(card->dev, "%s: entry\n", __func__);
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(name, "hdaudioC%dD%d", card->number, codec_addr);
890 err = snd_hdac_device_init(&codec->core, &bus->core, name, codec_addr);
896 codec->core.type = HDA_DEV_LEGACY;
903 * snd_hda_codec_new - create a HDA codec
904 * @bus: the bus to assign
905 * @card: card for this codec
906 * @codec_addr: the codec address
907 * @codecp: the pointer to store the generated codec
909 * Returns 0 if successful, or a negative error code.
911 int snd_hda_codec_new(struct hda_bus *bus, struct snd_card *card,
912 unsigned int codec_addr, struct hda_codec **codecp)
916 ret = snd_hda_codec_device_init(bus, card, codec_addr, codecp);
920 return snd_hda_codec_device_new(bus, card, codec_addr, *codecp);
922 EXPORT_SYMBOL_GPL(snd_hda_codec_new);
924 int snd_hda_codec_device_new(struct hda_bus *bus, struct snd_card *card,
925 unsigned int codec_addr, struct hda_codec *codec)
930 static const struct snd_device_ops dev_ops = {
931 .dev_register = snd_hda_codec_dev_register,
932 .dev_free = snd_hda_codec_dev_free,
935 dev_dbg(card->dev, "%s: entry\n", __func__);
937 if (snd_BUG_ON(!bus))
939 if (snd_BUG_ON(codec_addr > HDA_MAX_CODEC_ADDRESS))
942 codec->core.dev.release = snd_hda_codec_dev_release;
943 codec->core.exec_verb = codec_exec_verb;
947 codec->addr = codec_addr;
948 mutex_init(&codec->spdif_mutex);
949 mutex_init(&codec->control_mutex);
950 snd_array_init(&codec->mixers, sizeof(struct hda_nid_item), 32);
951 snd_array_init(&codec->nids, sizeof(struct hda_nid_item), 32);
952 snd_array_init(&codec->init_pins, sizeof(struct hda_pincfg), 16);
953 snd_array_init(&codec->driver_pins, sizeof(struct hda_pincfg), 16);
954 snd_array_init(&codec->cvt_setups, sizeof(struct hda_cvt_setup), 8);
955 snd_array_init(&codec->spdif_out, sizeof(struct hda_spdif_out), 16);
956 snd_array_init(&codec->jacktbl, sizeof(struct hda_jack_tbl), 16);
957 snd_array_init(&codec->verbs, sizeof(struct hda_verb *), 8);
958 INIT_LIST_HEAD(&codec->conn_list);
959 INIT_LIST_HEAD(&codec->pcm_list_head);
961 INIT_DELAYED_WORK(&codec->jackpoll_work, hda_jackpoll_work);
962 codec->depop_delay = -1;
963 codec->fixup_id = HDA_FIXUP_ID_NOT_SET;
966 codec->power_jiffies = jiffies;
969 snd_hda_sysfs_init(codec);
971 if (codec->bus->modelname) {
972 codec->modelname = kstrdup(codec->bus->modelname, GFP_KERNEL);
973 if (!codec->modelname) {
979 fg = codec->core.afg ? codec->core.afg : codec->core.mfg;
980 err = read_widget_caps(codec, fg);
983 err = read_pin_defaults(codec);
987 /* power-up all before initialization */
988 hda_set_power_state(codec, AC_PWRST_D0);
989 codec->core.dev.power.power_state = PMSG_ON;
991 snd_hda_codec_proc_new(codec);
993 snd_hda_create_hwdep(codec);
995 sprintf(component, "HDA:%08x,%08x,%08x", codec->core.vendor_id,
996 codec->core.subsystem_id, codec->core.revision_id);
997 snd_component_add(card, component);
999 err = snd_device_new(card, SNDRV_DEV_CODEC, codec, &dev_ops);
1003 /* PM runtime needs to be enabled later after binding codec */
1004 pm_runtime_forbid(&codec->core.dev);
1009 put_device(hda_codec_dev(codec));
1012 EXPORT_SYMBOL_GPL(snd_hda_codec_device_new);
1015 * snd_hda_codec_update_widgets - Refresh widget caps and pin defaults
1016 * @codec: the HDA codec
1018 * Forcibly refresh the all widget caps and the init pin configurations of
1021 int snd_hda_codec_update_widgets(struct hda_codec *codec)
1026 err = snd_hdac_refresh_widgets(&codec->core);
1030 /* Assume the function group node does not change,
1031 * only the widget nodes may change.
1033 kfree(codec->wcaps);
1034 fg = codec->core.afg ? codec->core.afg : codec->core.mfg;
1035 err = read_widget_caps(codec, fg);
1039 snd_array_free(&codec->init_pins);
1040 err = read_pin_defaults(codec);
1044 EXPORT_SYMBOL_GPL(snd_hda_codec_update_widgets);
1046 /* update the stream-id if changed */
1047 static void update_pcm_stream_id(struct hda_codec *codec,
1048 struct hda_cvt_setup *p, hda_nid_t nid,
1049 u32 stream_tag, int channel_id)
1051 unsigned int oldval, newval;
1053 if (p->stream_tag != stream_tag || p->channel_id != channel_id) {
1054 oldval = snd_hda_codec_read(codec, nid, 0, AC_VERB_GET_CONV, 0);
1055 newval = (stream_tag << 4) | channel_id;
1056 if (oldval != newval)
1057 snd_hda_codec_write(codec, nid, 0,
1058 AC_VERB_SET_CHANNEL_STREAMID,
1060 p->stream_tag = stream_tag;
1061 p->channel_id = channel_id;
1065 /* update the format-id if changed */
1066 static void update_pcm_format(struct hda_codec *codec, struct hda_cvt_setup *p,
1067 hda_nid_t nid, int format)
1069 unsigned int oldval;
1071 if (p->format_id != format) {
1072 oldval = snd_hda_codec_read(codec, nid, 0,
1073 AC_VERB_GET_STREAM_FORMAT, 0);
1074 if (oldval != format) {
1076 snd_hda_codec_write(codec, nid, 0,
1077 AC_VERB_SET_STREAM_FORMAT,
1080 p->format_id = format;
1085 * snd_hda_codec_setup_stream - set up the codec for streaming
1086 * @codec: the CODEC to set up
1087 * @nid: the NID to set up
1088 * @stream_tag: stream tag to pass, it's between 0x1 and 0xf.
1089 * @channel_id: channel id to pass, zero based.
1090 * @format: stream format.
1092 void snd_hda_codec_setup_stream(struct hda_codec *codec, hda_nid_t nid,
1094 int channel_id, int format)
1096 struct hda_codec *c;
1097 struct hda_cvt_setup *p;
1105 "hda_codec_setup_stream: NID=0x%x, stream=0x%x, channel=%d, format=0x%x\n",
1106 nid, stream_tag, channel_id, format);
1107 p = get_hda_cvt_setup(codec, nid);
1111 if (codec->patch_ops.stream_pm)
1112 codec->patch_ops.stream_pm(codec, nid, true);
1113 if (codec->pcm_format_first)
1114 update_pcm_format(codec, p, nid, format);
1115 update_pcm_stream_id(codec, p, nid, stream_tag, channel_id);
1116 if (!codec->pcm_format_first)
1117 update_pcm_format(codec, p, nid, format);
1122 /* make other inactive cvts with the same stream-tag dirty */
1123 type = get_wcaps_type(get_wcaps(codec, nid));
1124 list_for_each_codec(c, codec->bus) {
1125 snd_array_for_each(&c->cvt_setups, i, p) {
1126 if (!p->active && p->stream_tag == stream_tag &&
1127 get_wcaps_type(get_wcaps(c, p->nid)) == type)
1132 EXPORT_SYMBOL_GPL(snd_hda_codec_setup_stream);
1134 static void really_cleanup_stream(struct hda_codec *codec,
1135 struct hda_cvt_setup *q);
1138 * __snd_hda_codec_cleanup_stream - clean up the codec for closing
1139 * @codec: the CODEC to clean up
1140 * @nid: the NID to clean up
1141 * @do_now: really clean up the stream instead of clearing the active flag
1143 void __snd_hda_codec_cleanup_stream(struct hda_codec *codec, hda_nid_t nid,
1146 struct hda_cvt_setup *p;
1151 if (codec->no_sticky_stream)
1154 codec_dbg(codec, "hda_codec_cleanup_stream: NID=0x%x\n", nid);
1155 p = get_hda_cvt_setup(codec, nid);
1157 /* here we just clear the active flag when do_now isn't set;
1158 * actual clean-ups will be done later in
1159 * purify_inactive_streams() called from snd_hda_codec_prpapre()
1162 really_cleanup_stream(codec, p);
1167 EXPORT_SYMBOL_GPL(__snd_hda_codec_cleanup_stream);
1169 static void really_cleanup_stream(struct hda_codec *codec,
1170 struct hda_cvt_setup *q)
1172 hda_nid_t nid = q->nid;
1173 if (q->stream_tag || q->channel_id)
1174 snd_hda_codec_write(codec, nid, 0, AC_VERB_SET_CHANNEL_STREAMID, 0);
1176 snd_hda_codec_write(codec, nid, 0, AC_VERB_SET_STREAM_FORMAT, 0
1178 memset(q, 0, sizeof(*q));
1180 if (codec->patch_ops.stream_pm)
1181 codec->patch_ops.stream_pm(codec, nid, false);
1184 /* clean up the all conflicting obsolete streams */
1185 static void purify_inactive_streams(struct hda_codec *codec)
1187 struct hda_codec *c;
1188 struct hda_cvt_setup *p;
1191 list_for_each_codec(c, codec->bus) {
1192 snd_array_for_each(&c->cvt_setups, i, p) {
1194 really_cleanup_stream(c, p);
1200 /* clean up all streams; called from suspend */
1201 static void hda_cleanup_all_streams(struct hda_codec *codec)
1203 struct hda_cvt_setup *p;
1206 snd_array_for_each(&codec->cvt_setups, i, p) {
1208 really_cleanup_stream(codec, p);
1214 * amp access functions
1218 * query_amp_caps - query AMP capabilities
1219 * @codec: the HD-auio codec
1220 * @nid: the NID to query
1221 * @direction: either #HDA_INPUT or #HDA_OUTPUT
1223 * Query AMP capabilities for the given widget and direction.
1224 * Returns the obtained capability bits.
1226 * When cap bits have been already read, this doesn't read again but
1227 * returns the cached value.
1229 u32 query_amp_caps(struct hda_codec *codec, hda_nid_t nid, int direction)
1231 if (!(get_wcaps(codec, nid) & AC_WCAP_AMP_OVRD))
1232 nid = codec->core.afg;
1233 return snd_hda_param_read(codec, nid,
1234 direction == HDA_OUTPUT ?
1235 AC_PAR_AMP_OUT_CAP : AC_PAR_AMP_IN_CAP);
1237 EXPORT_SYMBOL_GPL(query_amp_caps);
1240 * snd_hda_check_amp_caps - query AMP capabilities
1241 * @codec: the HD-audio codec
1242 * @nid: the NID to query
1243 * @dir: either #HDA_INPUT or #HDA_OUTPUT
1244 * @bits: bit mask to check the result
1246 * Check whether the widget has the given amp capability for the direction.
1248 bool snd_hda_check_amp_caps(struct hda_codec *codec, hda_nid_t nid,
1249 int dir, unsigned int bits)
1253 if (get_wcaps(codec, nid) & (1 << (dir + 1)))
1254 if (query_amp_caps(codec, nid, dir) & bits)
1258 EXPORT_SYMBOL_GPL(snd_hda_check_amp_caps);
1261 * snd_hda_override_amp_caps - Override the AMP capabilities
1262 * @codec: the CODEC to clean up
1263 * @nid: the NID to clean up
1264 * @dir: either #HDA_INPUT or #HDA_OUTPUT
1265 * @caps: the capability bits to set
1267 * Override the cached AMP caps bits value by the given one.
1268 * This function is useful if the driver needs to adjust the AMP ranges,
1269 * e.g. limit to 0dB, etc.
1271 * Returns zero if successful or a negative error code.
1273 int snd_hda_override_amp_caps(struct hda_codec *codec, hda_nid_t nid, int dir,
1278 snd_hda_override_wcaps(codec, nid,
1279 get_wcaps(codec, nid) | AC_WCAP_AMP_OVRD);
1280 parm = dir == HDA_OUTPUT ? AC_PAR_AMP_OUT_CAP : AC_PAR_AMP_IN_CAP;
1281 return snd_hdac_override_parm(&codec->core, nid, parm, caps);
1283 EXPORT_SYMBOL_GPL(snd_hda_override_amp_caps);
1285 static unsigned int encode_amp(struct hda_codec *codec, hda_nid_t nid,
1286 int ch, int dir, int idx)
1288 unsigned int cmd = snd_hdac_regmap_encode_amp(nid, ch, dir, idx);
1290 /* enable fake mute if no h/w mute but min=mute */
1291 if ((query_amp_caps(codec, nid, dir) &
1292 (AC_AMPCAP_MUTE | AC_AMPCAP_MIN_MUTE)) == AC_AMPCAP_MIN_MUTE)
1293 cmd |= AC_AMP_FAKE_MUTE;
1298 * snd_hda_codec_amp_update - update the AMP mono value
1299 * @codec: HD-audio codec
1300 * @nid: NID to read the AMP value
1301 * @ch: channel to update (0 or 1)
1302 * @dir: #HDA_INPUT or #HDA_OUTPUT
1303 * @idx: the index value (only for input direction)
1304 * @mask: bit mask to set
1305 * @val: the bits value to set
1307 * Update the AMP values for the given channel, direction and index.
1309 int snd_hda_codec_amp_update(struct hda_codec *codec, hda_nid_t nid,
1310 int ch, int dir, int idx, int mask, int val)
1312 unsigned int cmd = encode_amp(codec, nid, ch, dir, idx);
1314 return snd_hdac_regmap_update_raw(&codec->core, cmd, mask, val);
1316 EXPORT_SYMBOL_GPL(snd_hda_codec_amp_update);
1319 * snd_hda_codec_amp_stereo - update the AMP stereo values
1320 * @codec: HD-audio codec
1321 * @nid: NID to read the AMP value
1322 * @direction: #HDA_INPUT or #HDA_OUTPUT
1323 * @idx: the index value (only for input direction)
1324 * @mask: bit mask to set
1325 * @val: the bits value to set
1327 * Update the AMP values like snd_hda_codec_amp_update(), but for a
1328 * stereo widget with the same mask and value.
1330 int snd_hda_codec_amp_stereo(struct hda_codec *codec, hda_nid_t nid,
1331 int direction, int idx, int mask, int val)
1335 if (snd_BUG_ON(mask & ~0xff))
1337 for (ch = 0; ch < 2; ch++)
1338 ret |= snd_hda_codec_amp_update(codec, nid, ch, direction,
1342 EXPORT_SYMBOL_GPL(snd_hda_codec_amp_stereo);
1345 * snd_hda_codec_amp_init - initialize the AMP value
1346 * @codec: the HDA codec
1347 * @nid: NID to read the AMP value
1348 * @ch: channel (left=0 or right=1)
1349 * @dir: #HDA_INPUT or #HDA_OUTPUT
1350 * @idx: the index value (only for input direction)
1351 * @mask: bit mask to set
1352 * @val: the bits value to set
1354 * Works like snd_hda_codec_amp_update() but it writes the value only at
1355 * the first access. If the amp was already initialized / updated beforehand,
1356 * this does nothing.
1358 int snd_hda_codec_amp_init(struct hda_codec *codec, hda_nid_t nid, int ch,
1359 int dir, int idx, int mask, int val)
1361 unsigned int cmd = encode_amp(codec, nid, ch, dir, idx);
1363 if (!codec->core.regmap)
1365 return snd_hdac_regmap_update_raw_once(&codec->core, cmd, mask, val);
1367 EXPORT_SYMBOL_GPL(snd_hda_codec_amp_init);
1370 * snd_hda_codec_amp_init_stereo - initialize the stereo AMP value
1371 * @codec: the HDA codec
1372 * @nid: NID to read the AMP value
1373 * @dir: #HDA_INPUT or #HDA_OUTPUT
1374 * @idx: the index value (only for input direction)
1375 * @mask: bit mask to set
1376 * @val: the bits value to set
1378 * Call snd_hda_codec_amp_init() for both stereo channels.
1380 int snd_hda_codec_amp_init_stereo(struct hda_codec *codec, hda_nid_t nid,
1381 int dir, int idx, int mask, int val)
1385 if (snd_BUG_ON(mask & ~0xff))
1387 for (ch = 0; ch < 2; ch++)
1388 ret |= snd_hda_codec_amp_init(codec, nid, ch, dir,
1392 EXPORT_SYMBOL_GPL(snd_hda_codec_amp_init_stereo);
1394 static u32 get_amp_max_value(struct hda_codec *codec, hda_nid_t nid, int dir,
1397 u32 caps = query_amp_caps(codec, nid, dir);
1399 caps = (caps & AC_AMPCAP_NUM_STEPS) >> AC_AMPCAP_NUM_STEPS_SHIFT;
1406 * snd_hda_mixer_amp_volume_info - Info callback for a standard AMP mixer
1407 * @kcontrol: referred ctl element
1408 * @uinfo: pointer to get/store the data
1410 * The control element is supposed to have the private_value field
1411 * set up via HDA_COMPOSE_AMP_VAL*() or related macros.
1413 int snd_hda_mixer_amp_volume_info(struct snd_kcontrol *kcontrol,
1414 struct snd_ctl_elem_info *uinfo)
1416 struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
1417 u16 nid = get_amp_nid(kcontrol);
1418 u8 chs = get_amp_channels(kcontrol);
1419 int dir = get_amp_direction(kcontrol);
1420 unsigned int ofs = get_amp_offset(kcontrol);
1422 uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
1423 uinfo->count = chs == 3 ? 2 : 1;
1424 uinfo->value.integer.min = 0;
1425 uinfo->value.integer.max = get_amp_max_value(codec, nid, dir, ofs);
1426 if (!uinfo->value.integer.max) {
1428 "num_steps = 0 for NID=0x%x (ctl = %s)\n",
1429 nid, kcontrol->id.name);
1434 EXPORT_SYMBOL_GPL(snd_hda_mixer_amp_volume_info);
1437 static inline unsigned int
1438 read_amp_value(struct hda_codec *codec, hda_nid_t nid,
1439 int ch, int dir, int idx, unsigned int ofs)
1442 val = snd_hda_codec_amp_read(codec, nid, ch, dir, idx);
1443 val &= HDA_AMP_VOLMASK;
1452 update_amp_value(struct hda_codec *codec, hda_nid_t nid,
1453 int ch, int dir, int idx, unsigned int ofs,
1456 unsigned int maxval;
1460 /* ofs = 0: raw max value */
1461 maxval = get_amp_max_value(codec, nid, dir, 0);
1464 return snd_hda_codec_amp_update(codec, nid, ch, dir, idx,
1465 HDA_AMP_VOLMASK, val);
1469 * snd_hda_mixer_amp_volume_get - Get callback for a standard AMP mixer volume
1470 * @kcontrol: ctl element
1471 * @ucontrol: pointer to get/store the data
1473 * The control element is supposed to have the private_value field
1474 * set up via HDA_COMPOSE_AMP_VAL*() or related macros.
1476 int snd_hda_mixer_amp_volume_get(struct snd_kcontrol *kcontrol,
1477 struct snd_ctl_elem_value *ucontrol)
1479 struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
1480 hda_nid_t nid = get_amp_nid(kcontrol);
1481 int chs = get_amp_channels(kcontrol);
1482 int dir = get_amp_direction(kcontrol);
1483 int idx = get_amp_index(kcontrol);
1484 unsigned int ofs = get_amp_offset(kcontrol);
1485 long *valp = ucontrol->value.integer.value;
1488 *valp++ = read_amp_value(codec, nid, 0, dir, idx, ofs);
1490 *valp = read_amp_value(codec, nid, 1, dir, idx, ofs);
1493 EXPORT_SYMBOL_GPL(snd_hda_mixer_amp_volume_get);
1496 * snd_hda_mixer_amp_volume_put - Put callback for a standard AMP mixer volume
1497 * @kcontrol: ctl element
1498 * @ucontrol: pointer to get/store the data
1500 * The control element is supposed to have the private_value field
1501 * set up via HDA_COMPOSE_AMP_VAL*() or related macros.
1503 int snd_hda_mixer_amp_volume_put(struct snd_kcontrol *kcontrol,
1504 struct snd_ctl_elem_value *ucontrol)
1506 struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
1507 hda_nid_t nid = get_amp_nid(kcontrol);
1508 int chs = get_amp_channels(kcontrol);
1509 int dir = get_amp_direction(kcontrol);
1510 int idx = get_amp_index(kcontrol);
1511 unsigned int ofs = get_amp_offset(kcontrol);
1512 long *valp = ucontrol->value.integer.value;
1516 change = update_amp_value(codec, nid, 0, dir, idx, ofs, *valp);
1520 change |= update_amp_value(codec, nid, 1, dir, idx, ofs, *valp);
1523 EXPORT_SYMBOL_GPL(snd_hda_mixer_amp_volume_put);
1525 /* inquiry the amp caps and convert to TLV */
1526 static void get_ctl_amp_tlv(struct snd_kcontrol *kcontrol, unsigned int *tlv)
1528 struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
1529 hda_nid_t nid = get_amp_nid(kcontrol);
1530 int dir = get_amp_direction(kcontrol);
1531 unsigned int ofs = get_amp_offset(kcontrol);
1532 bool min_mute = get_amp_min_mute(kcontrol);
1533 u32 caps, val1, val2;
1535 caps = query_amp_caps(codec, nid, dir);
1536 val2 = (caps & AC_AMPCAP_STEP_SIZE) >> AC_AMPCAP_STEP_SIZE_SHIFT;
1537 val2 = (val2 + 1) * 25;
1538 val1 = -((caps & AC_AMPCAP_OFFSET) >> AC_AMPCAP_OFFSET_SHIFT);
1540 val1 = ((int)val1) * ((int)val2);
1541 if (min_mute || (caps & AC_AMPCAP_MIN_MUTE))
1542 val2 |= TLV_DB_SCALE_MUTE;
1543 tlv[SNDRV_CTL_TLVO_TYPE] = SNDRV_CTL_TLVT_DB_SCALE;
1544 tlv[SNDRV_CTL_TLVO_LEN] = 2 * sizeof(unsigned int);
1545 tlv[SNDRV_CTL_TLVO_DB_SCALE_MIN] = val1;
1546 tlv[SNDRV_CTL_TLVO_DB_SCALE_MUTE_AND_STEP] = val2;
1550 * snd_hda_mixer_amp_tlv - TLV callback for a standard AMP mixer volume
1551 * @kcontrol: ctl element
1552 * @op_flag: operation flag
1553 * @size: byte size of input TLV
1556 * The control element is supposed to have the private_value field
1557 * set up via HDA_COMPOSE_AMP_VAL*() or related macros.
1559 int snd_hda_mixer_amp_tlv(struct snd_kcontrol *kcontrol, int op_flag,
1560 unsigned int size, unsigned int __user *_tlv)
1562 unsigned int tlv[4];
1564 if (size < 4 * sizeof(unsigned int))
1566 get_ctl_amp_tlv(kcontrol, tlv);
1567 if (copy_to_user(_tlv, tlv, sizeof(tlv)))
1571 EXPORT_SYMBOL_GPL(snd_hda_mixer_amp_tlv);
1574 * snd_hda_set_vmaster_tlv - Set TLV for a virtual master control
1575 * @codec: HD-audio codec
1576 * @nid: NID of a reference widget
1577 * @dir: #HDA_INPUT or #HDA_OUTPUT
1578 * @tlv: TLV data to be stored, at least 4 elements
1580 * Set (static) TLV data for a virtual master volume using the AMP caps
1581 * obtained from the reference NID.
1582 * The volume range is recalculated as if the max volume is 0dB.
1584 void snd_hda_set_vmaster_tlv(struct hda_codec *codec, hda_nid_t nid, int dir,
1590 caps = query_amp_caps(codec, nid, dir);
1591 nums = (caps & AC_AMPCAP_NUM_STEPS) >> AC_AMPCAP_NUM_STEPS_SHIFT;
1592 step = (caps & AC_AMPCAP_STEP_SIZE) >> AC_AMPCAP_STEP_SIZE_SHIFT;
1593 step = (step + 1) * 25;
1594 tlv[SNDRV_CTL_TLVO_TYPE] = SNDRV_CTL_TLVT_DB_SCALE;
1595 tlv[SNDRV_CTL_TLVO_LEN] = 2 * sizeof(unsigned int);
1596 tlv[SNDRV_CTL_TLVO_DB_SCALE_MIN] = -nums * step;
1597 tlv[SNDRV_CTL_TLVO_DB_SCALE_MUTE_AND_STEP] = step;
1599 EXPORT_SYMBOL_GPL(snd_hda_set_vmaster_tlv);
1601 /* find a mixer control element with the given name */
1602 static struct snd_kcontrol *
1603 find_mixer_ctl(struct hda_codec *codec, const char *name, int dev, int idx)
1605 struct snd_ctl_elem_id id;
1606 memset(&id, 0, sizeof(id));
1607 id.iface = SNDRV_CTL_ELEM_IFACE_MIXER;
1610 if (snd_BUG_ON(strlen(name) >= sizeof(id.name)))
1612 strcpy(id.name, name);
1613 return snd_ctl_find_id(codec->card, &id);
1617 * snd_hda_find_mixer_ctl - Find a mixer control element with the given name
1618 * @codec: HD-audio codec
1619 * @name: ctl id name string
1621 * Get the control element with the given id string and IFACE_MIXER.
1623 struct snd_kcontrol *snd_hda_find_mixer_ctl(struct hda_codec *codec,
1626 return find_mixer_ctl(codec, name, 0, 0);
1628 EXPORT_SYMBOL_GPL(snd_hda_find_mixer_ctl);
1630 static int find_empty_mixer_ctl_idx(struct hda_codec *codec, const char *name,
1634 /* 16 ctlrs should be large enough */
1635 for (i = 0, idx = start_idx; i < 16; i++, idx++) {
1636 if (!find_mixer_ctl(codec, name, 0, idx))
1643 * snd_hda_ctl_add - Add a control element and assign to the codec
1644 * @codec: HD-audio codec
1645 * @nid: corresponding NID (optional)
1646 * @kctl: the control element to assign
1648 * Add the given control element to an array inside the codec instance.
1649 * All control elements belonging to a codec are supposed to be added
1650 * by this function so that a proper clean-up works at the free or
1651 * reconfiguration time.
1653 * If non-zero @nid is passed, the NID is assigned to the control element.
1654 * The assignment is shown in the codec proc file.
1656 * snd_hda_ctl_add() checks the control subdev id field whether
1657 * #HDA_SUBDEV_NID_FLAG bit is set. If set (and @nid is zero), the lower
1658 * bits value is taken as the NID to assign. The #HDA_NID_ITEM_AMP bit
1659 * specifies if kctl->private_value is a HDA amplifier value.
1661 int snd_hda_ctl_add(struct hda_codec *codec, hda_nid_t nid,
1662 struct snd_kcontrol *kctl)
1665 unsigned short flags = 0;
1666 struct hda_nid_item *item;
1668 if (kctl->id.subdevice & HDA_SUBDEV_AMP_FLAG) {
1669 flags |= HDA_NID_ITEM_AMP;
1671 nid = get_amp_nid_(kctl->private_value);
1673 if ((kctl->id.subdevice & HDA_SUBDEV_NID_FLAG) != 0 && nid == 0)
1674 nid = kctl->id.subdevice & 0xffff;
1675 if (kctl->id.subdevice & (HDA_SUBDEV_NID_FLAG|HDA_SUBDEV_AMP_FLAG))
1676 kctl->id.subdevice = 0;
1677 err = snd_ctl_add(codec->card, kctl);
1680 item = snd_array_new(&codec->mixers);
1685 item->flags = flags;
1688 EXPORT_SYMBOL_GPL(snd_hda_ctl_add);
1691 * snd_hda_add_nid - Assign a NID to a control element
1692 * @codec: HD-audio codec
1693 * @nid: corresponding NID (optional)
1694 * @kctl: the control element to assign
1695 * @index: index to kctl
1697 * Add the given control element to an array inside the codec instance.
1698 * This function is used when #snd_hda_ctl_add cannot be used for 1:1
1699 * NID:KCTL mapping - for example "Capture Source" selector.
1701 int snd_hda_add_nid(struct hda_codec *codec, struct snd_kcontrol *kctl,
1702 unsigned int index, hda_nid_t nid)
1704 struct hda_nid_item *item;
1707 item = snd_array_new(&codec->nids);
1711 item->index = index;
1715 codec_err(codec, "no NID for mapping control %s:%d:%d\n",
1716 kctl->id.name, kctl->id.index, index);
1719 EXPORT_SYMBOL_GPL(snd_hda_add_nid);
1722 * snd_hda_ctls_clear - Clear all controls assigned to the given codec
1723 * @codec: HD-audio codec
1725 void snd_hda_ctls_clear(struct hda_codec *codec)
1728 struct hda_nid_item *items = codec->mixers.list;
1729 for (i = 0; i < codec->mixers.used; i++)
1730 snd_ctl_remove(codec->card, items[i].kctl);
1731 snd_array_free(&codec->mixers);
1732 snd_array_free(&codec->nids);
1736 * snd_hda_lock_devices - pseudo device locking
1739 * toggle card->shutdown to allow/disallow the device access (as a hack)
1741 int snd_hda_lock_devices(struct hda_bus *bus)
1743 struct snd_card *card = bus->card;
1744 struct hda_codec *codec;
1746 spin_lock(&card->files_lock);
1750 if (!list_empty(&card->ctl_files))
1753 list_for_each_codec(codec, bus) {
1754 struct hda_pcm *cpcm;
1755 list_for_each_entry(cpcm, &codec->pcm_list_head, list) {
1758 if (cpcm->pcm->streams[0].substream_opened ||
1759 cpcm->pcm->streams[1].substream_opened)
1763 spin_unlock(&card->files_lock);
1769 spin_unlock(&card->files_lock);
1772 EXPORT_SYMBOL_GPL(snd_hda_lock_devices);
1775 * snd_hda_unlock_devices - pseudo device unlocking
1778 void snd_hda_unlock_devices(struct hda_bus *bus)
1780 struct snd_card *card = bus->card;
1782 spin_lock(&card->files_lock);
1784 spin_unlock(&card->files_lock);
1786 EXPORT_SYMBOL_GPL(snd_hda_unlock_devices);
1789 * snd_hda_codec_reset - Clear all objects assigned to the codec
1790 * @codec: HD-audio codec
1792 * This frees the all PCM and control elements assigned to the codec, and
1793 * clears the caches and restores the pin default configurations.
1795 * When a device is being used, it returns -EBSY. If successfully freed,
1798 int snd_hda_codec_reset(struct hda_codec *codec)
1800 struct hda_bus *bus = codec->bus;
1802 if (snd_hda_lock_devices(bus) < 0)
1805 /* OK, let it free */
1806 device_release_driver(hda_codec_dev(codec));
1808 /* allow device access again */
1809 snd_hda_unlock_devices(bus);
1813 typedef int (*map_follower_func_t)(struct hda_codec *, void *, struct snd_kcontrol *);
1815 /* apply the function to all matching follower ctls in the mixer list */
1816 static int map_followers(struct hda_codec *codec, const char * const *followers,
1817 const char *suffix, map_follower_func_t func, void *data)
1819 struct hda_nid_item *items;
1820 const char * const *s;
1823 items = codec->mixers.list;
1824 for (i = 0; i < codec->mixers.used; i++) {
1825 struct snd_kcontrol *sctl = items[i].kctl;
1826 if (!sctl || sctl->id.iface != SNDRV_CTL_ELEM_IFACE_MIXER)
1828 for (s = followers; *s; s++) {
1829 char tmpname[sizeof(sctl->id.name)];
1830 const char *name = *s;
1832 snprintf(tmpname, sizeof(tmpname), "%s %s",
1836 if (!strcmp(sctl->id.name, name)) {
1837 err = func(codec, data, sctl);
1847 static int check_follower_present(struct hda_codec *codec,
1848 void *data, struct snd_kcontrol *sctl)
1853 /* call kctl->put with the given value(s) */
1854 static int put_kctl_with_value(struct snd_kcontrol *kctl, int val)
1856 struct snd_ctl_elem_value *ucontrol;
1857 ucontrol = kzalloc(sizeof(*ucontrol), GFP_KERNEL);
1860 ucontrol->value.integer.value[0] = val;
1861 ucontrol->value.integer.value[1] = val;
1862 kctl->put(kctl, ucontrol);
1867 struct follower_init_arg {
1868 struct hda_codec *codec;
1872 /* initialize the follower volume with 0dB via snd_ctl_apply_vmaster_followers() */
1873 static int init_follower_0dB(struct snd_kcontrol *follower,
1874 struct snd_kcontrol *kctl,
1877 struct follower_init_arg *arg = _arg;
1879 const int *tlv = NULL;
1883 if (kctl->vd[0].access & SNDRV_CTL_ELEM_ACCESS_TLV_CALLBACK) {
1884 if (kctl->tlv.c != snd_hda_mixer_amp_tlv) {
1885 codec_err(arg->codec,
1886 "Unexpected TLV callback for follower %s:%d\n",
1887 kctl->id.name, kctl->id.index);
1888 return 0; /* ignore */
1890 get_ctl_amp_tlv(kctl, _tlv);
1892 } else if (kctl->vd[0].access & SNDRV_CTL_ELEM_ACCESS_TLV_READ)
1895 if (!tlv || tlv[SNDRV_CTL_TLVO_TYPE] != SNDRV_CTL_TLVT_DB_SCALE)
1898 step = tlv[SNDRV_CTL_TLVO_DB_SCALE_MUTE_AND_STEP];
1899 step &= ~TLV_DB_SCALE_MUTE;
1902 if (arg->step && arg->step != step) {
1903 codec_err(arg->codec,
1904 "Mismatching dB step for vmaster follower (%d!=%d)\n",
1910 val = -tlv[SNDRV_CTL_TLVO_DB_SCALE_MIN] / step;
1912 put_kctl_with_value(follower, val);
1919 /* unmute the follower via snd_ctl_apply_vmaster_followers() */
1920 static int init_follower_unmute(struct snd_kcontrol *follower,
1921 struct snd_kcontrol *kctl,
1924 return put_kctl_with_value(follower, 1);
1927 static int add_follower(struct hda_codec *codec,
1928 void *data, struct snd_kcontrol *follower)
1930 return snd_ctl_add_follower(data, follower);
1934 * __snd_hda_add_vmaster - create a virtual master control and add followers
1935 * @codec: HD-audio codec
1936 * @name: vmaster control name
1937 * @tlv: TLV data (optional)
1938 * @followers: follower control names (optional)
1939 * @suffix: suffix string to each follower name (optional)
1940 * @init_follower_vol: initialize followers to unmute/0dB
1941 * @access: kcontrol access rights
1942 * @ctl_ret: store the vmaster kcontrol in return
1944 * Create a virtual master control with the given name. The TLV data
1945 * must be either NULL or a valid data.
1947 * @followers is a NULL-terminated array of strings, each of which is a
1948 * follower control name. All controls with these names are assigned to
1949 * the new virtual master control.
1951 * This function returns zero if successful or a negative error code.
1953 int __snd_hda_add_vmaster(struct hda_codec *codec, char *name,
1954 unsigned int *tlv, const char * const *followers,
1955 const char *suffix, bool init_follower_vol,
1956 unsigned int access, struct snd_kcontrol **ctl_ret)
1958 struct snd_kcontrol *kctl;
1964 err = map_followers(codec, followers, suffix, check_follower_present, NULL);
1966 codec_dbg(codec, "No follower found for %s\n", name);
1969 kctl = snd_ctl_make_virtual_master(name, tlv);
1972 kctl->vd[0].access |= access;
1973 err = snd_hda_ctl_add(codec, 0, kctl);
1977 err = map_followers(codec, followers, suffix, add_follower, kctl);
1981 /* init with master mute & zero volume */
1982 put_kctl_with_value(kctl, 0);
1983 if (init_follower_vol) {
1984 struct follower_init_arg arg = {
1988 snd_ctl_apply_vmaster_followers(kctl,
1989 tlv ? init_follower_0dB : init_follower_unmute,
1997 EXPORT_SYMBOL_GPL(__snd_hda_add_vmaster);
1999 /* meta hook to call each driver's vmaster hook */
2000 static void vmaster_hook(void *private_data, int enabled)
2002 struct hda_vmaster_mute_hook *hook = private_data;
2004 hook->hook(hook->codec, enabled);
2008 * snd_hda_add_vmaster_hook - Add a vmaster hw specific hook
2009 * @codec: the HDA codec
2010 * @hook: the vmaster hook object
2012 * Add a hw specific hook (like EAPD) with the given vmaster switch kctl.
2014 int snd_hda_add_vmaster_hook(struct hda_codec *codec,
2015 struct hda_vmaster_mute_hook *hook)
2017 if (!hook->hook || !hook->sw_kctl)
2019 hook->codec = codec;
2020 snd_ctl_add_vmaster_hook(hook->sw_kctl, vmaster_hook, hook);
2023 EXPORT_SYMBOL_GPL(snd_hda_add_vmaster_hook);
2026 * snd_hda_sync_vmaster_hook - Sync vmaster hook
2027 * @hook: the vmaster hook
2029 * Call the hook with the current value for synchronization.
2030 * Should be called in init callback.
2032 void snd_hda_sync_vmaster_hook(struct hda_vmaster_mute_hook *hook)
2034 if (!hook->hook || !hook->codec)
2036 /* don't call vmaster hook in the destructor since it might have
2037 * been already destroyed
2039 if (hook->codec->bus->shutdown)
2041 snd_ctl_sync_vmaster_hook(hook->sw_kctl);
2043 EXPORT_SYMBOL_GPL(snd_hda_sync_vmaster_hook);
2047 * snd_hda_mixer_amp_switch_info - Info callback for a standard AMP mixer switch
2048 * @kcontrol: referred ctl element
2049 * @uinfo: pointer to get/store the data
2051 * The control element is supposed to have the private_value field
2052 * set up via HDA_COMPOSE_AMP_VAL*() or related macros.
2054 int snd_hda_mixer_amp_switch_info(struct snd_kcontrol *kcontrol,
2055 struct snd_ctl_elem_info *uinfo)
2057 int chs = get_amp_channels(kcontrol);
2059 uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN;
2060 uinfo->count = chs == 3 ? 2 : 1;
2061 uinfo->value.integer.min = 0;
2062 uinfo->value.integer.max = 1;
2065 EXPORT_SYMBOL_GPL(snd_hda_mixer_amp_switch_info);
2068 * snd_hda_mixer_amp_switch_get - Get callback for a standard AMP mixer switch
2069 * @kcontrol: ctl element
2070 * @ucontrol: pointer to get/store the data
2072 * The control element is supposed to have the private_value field
2073 * set up via HDA_COMPOSE_AMP_VAL*() or related macros.
2075 int snd_hda_mixer_amp_switch_get(struct snd_kcontrol *kcontrol,
2076 struct snd_ctl_elem_value *ucontrol)
2078 struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
2079 hda_nid_t nid = get_amp_nid(kcontrol);
2080 int chs = get_amp_channels(kcontrol);
2081 int dir = get_amp_direction(kcontrol);
2082 int idx = get_amp_index(kcontrol);
2083 long *valp = ucontrol->value.integer.value;
2086 *valp++ = (snd_hda_codec_amp_read(codec, nid, 0, dir, idx) &
2087 HDA_AMP_MUTE) ? 0 : 1;
2089 *valp = (snd_hda_codec_amp_read(codec, nid, 1, dir, idx) &
2090 HDA_AMP_MUTE) ? 0 : 1;
2093 EXPORT_SYMBOL_GPL(snd_hda_mixer_amp_switch_get);
2096 * snd_hda_mixer_amp_switch_put - Put callback for a standard AMP mixer switch
2097 * @kcontrol: ctl element
2098 * @ucontrol: pointer to get/store the data
2100 * The control element is supposed to have the private_value field
2101 * set up via HDA_COMPOSE_AMP_VAL*() or related macros.
2103 int snd_hda_mixer_amp_switch_put(struct snd_kcontrol *kcontrol,
2104 struct snd_ctl_elem_value *ucontrol)
2106 struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
2107 hda_nid_t nid = get_amp_nid(kcontrol);
2108 int chs = get_amp_channels(kcontrol);
2109 int dir = get_amp_direction(kcontrol);
2110 int idx = get_amp_index(kcontrol);
2111 long *valp = ucontrol->value.integer.value;
2115 change = snd_hda_codec_amp_update(codec, nid, 0, dir, idx,
2117 *valp ? 0 : HDA_AMP_MUTE);
2121 change |= snd_hda_codec_amp_update(codec, nid, 1, dir, idx,
2123 *valp ? 0 : HDA_AMP_MUTE);
2124 hda_call_check_power_status(codec, nid);
2127 EXPORT_SYMBOL_GPL(snd_hda_mixer_amp_switch_put);
2130 * SPDIF out controls
2133 static int snd_hda_spdif_mask_info(struct snd_kcontrol *kcontrol,
2134 struct snd_ctl_elem_info *uinfo)
2136 uinfo->type = SNDRV_CTL_ELEM_TYPE_IEC958;
2141 static int snd_hda_spdif_cmask_get(struct snd_kcontrol *kcontrol,
2142 struct snd_ctl_elem_value *ucontrol)
2144 ucontrol->value.iec958.status[0] = IEC958_AES0_PROFESSIONAL |
2145 IEC958_AES0_NONAUDIO |
2146 IEC958_AES0_CON_EMPHASIS_5015 |
2147 IEC958_AES0_CON_NOT_COPYRIGHT;
2148 ucontrol->value.iec958.status[1] = IEC958_AES1_CON_CATEGORY |
2149 IEC958_AES1_CON_ORIGINAL;
2153 static int snd_hda_spdif_pmask_get(struct snd_kcontrol *kcontrol,
2154 struct snd_ctl_elem_value *ucontrol)
2156 ucontrol->value.iec958.status[0] = IEC958_AES0_PROFESSIONAL |
2157 IEC958_AES0_NONAUDIO |
2158 IEC958_AES0_PRO_EMPHASIS_5015;
2162 static int snd_hda_spdif_default_get(struct snd_kcontrol *kcontrol,
2163 struct snd_ctl_elem_value *ucontrol)
2165 struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
2166 int idx = kcontrol->private_value;
2167 struct hda_spdif_out *spdif;
2169 if (WARN_ON(codec->spdif_out.used <= idx))
2171 mutex_lock(&codec->spdif_mutex);
2172 spdif = snd_array_elem(&codec->spdif_out, idx);
2173 ucontrol->value.iec958.status[0] = spdif->status & 0xff;
2174 ucontrol->value.iec958.status[1] = (spdif->status >> 8) & 0xff;
2175 ucontrol->value.iec958.status[2] = (spdif->status >> 16) & 0xff;
2176 ucontrol->value.iec958.status[3] = (spdif->status >> 24) & 0xff;
2177 mutex_unlock(&codec->spdif_mutex);
2182 /* convert from SPDIF status bits to HDA SPDIF bits
2183 * bit 0 (DigEn) is always set zero (to be filled later)
2185 static unsigned short convert_from_spdif_status(unsigned int sbits)
2187 unsigned short val = 0;
2189 if (sbits & IEC958_AES0_PROFESSIONAL)
2190 val |= AC_DIG1_PROFESSIONAL;
2191 if (sbits & IEC958_AES0_NONAUDIO)
2192 val |= AC_DIG1_NONAUDIO;
2193 if (sbits & IEC958_AES0_PROFESSIONAL) {
2194 if ((sbits & IEC958_AES0_PRO_EMPHASIS) ==
2195 IEC958_AES0_PRO_EMPHASIS_5015)
2196 val |= AC_DIG1_EMPHASIS;
2198 if ((sbits & IEC958_AES0_CON_EMPHASIS) ==
2199 IEC958_AES0_CON_EMPHASIS_5015)
2200 val |= AC_DIG1_EMPHASIS;
2201 if (!(sbits & IEC958_AES0_CON_NOT_COPYRIGHT))
2202 val |= AC_DIG1_COPYRIGHT;
2203 if (sbits & (IEC958_AES1_CON_ORIGINAL << 8))
2204 val |= AC_DIG1_LEVEL;
2205 val |= sbits & (IEC958_AES1_CON_CATEGORY << 8);
2210 /* convert to SPDIF status bits from HDA SPDIF bits
2212 static unsigned int convert_to_spdif_status(unsigned short val)
2214 unsigned int sbits = 0;
2216 if (val & AC_DIG1_NONAUDIO)
2217 sbits |= IEC958_AES0_NONAUDIO;
2218 if (val & AC_DIG1_PROFESSIONAL)
2219 sbits |= IEC958_AES0_PROFESSIONAL;
2220 if (sbits & IEC958_AES0_PROFESSIONAL) {
2221 if (val & AC_DIG1_EMPHASIS)
2222 sbits |= IEC958_AES0_PRO_EMPHASIS_5015;
2224 if (val & AC_DIG1_EMPHASIS)
2225 sbits |= IEC958_AES0_CON_EMPHASIS_5015;
2226 if (!(val & AC_DIG1_COPYRIGHT))
2227 sbits |= IEC958_AES0_CON_NOT_COPYRIGHT;
2228 if (val & AC_DIG1_LEVEL)
2229 sbits |= (IEC958_AES1_CON_ORIGINAL << 8);
2230 sbits |= val & (0x7f << 8);
2235 /* set digital convert verbs both for the given NID and its followers */
2236 static void set_dig_out(struct hda_codec *codec, hda_nid_t nid,
2241 snd_hdac_regmap_update(&codec->core, nid, AC_VERB_SET_DIGI_CONVERT_1,
2243 d = codec->follower_dig_outs;
2247 snd_hdac_regmap_update(&codec->core, *d,
2248 AC_VERB_SET_DIGI_CONVERT_1, mask, val);
2251 static inline void set_dig_out_convert(struct hda_codec *codec, hda_nid_t nid,
2254 unsigned int mask = 0;
2255 unsigned int val = 0;
2265 set_dig_out(codec, nid, mask, val);
2268 static int snd_hda_spdif_default_put(struct snd_kcontrol *kcontrol,
2269 struct snd_ctl_elem_value *ucontrol)
2271 struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
2272 int idx = kcontrol->private_value;
2273 struct hda_spdif_out *spdif;
2278 if (WARN_ON(codec->spdif_out.used <= idx))
2280 mutex_lock(&codec->spdif_mutex);
2281 spdif = snd_array_elem(&codec->spdif_out, idx);
2283 spdif->status = ucontrol->value.iec958.status[0] |
2284 ((unsigned int)ucontrol->value.iec958.status[1] << 8) |
2285 ((unsigned int)ucontrol->value.iec958.status[2] << 16) |
2286 ((unsigned int)ucontrol->value.iec958.status[3] << 24);
2287 val = convert_from_spdif_status(spdif->status);
2288 val |= spdif->ctls & 1;
2289 change = spdif->ctls != val;
2291 if (change && nid != (u16)-1)
2292 set_dig_out_convert(codec, nid, val & 0xff, (val >> 8) & 0xff);
2293 mutex_unlock(&codec->spdif_mutex);
2297 #define snd_hda_spdif_out_switch_info snd_ctl_boolean_mono_info
2299 static int snd_hda_spdif_out_switch_get(struct snd_kcontrol *kcontrol,
2300 struct snd_ctl_elem_value *ucontrol)
2302 struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
2303 int idx = kcontrol->private_value;
2304 struct hda_spdif_out *spdif;
2306 if (WARN_ON(codec->spdif_out.used <= idx))
2308 mutex_lock(&codec->spdif_mutex);
2309 spdif = snd_array_elem(&codec->spdif_out, idx);
2310 ucontrol->value.integer.value[0] = spdif->ctls & AC_DIG1_ENABLE;
2311 mutex_unlock(&codec->spdif_mutex);
2315 static inline void set_spdif_ctls(struct hda_codec *codec, hda_nid_t nid,
2318 set_dig_out_convert(codec, nid, dig1, dig2);
2319 /* unmute amp switch (if any) */
2320 if ((get_wcaps(codec, nid) & AC_WCAP_OUT_AMP) &&
2321 (dig1 & AC_DIG1_ENABLE))
2322 snd_hda_codec_amp_stereo(codec, nid, HDA_OUTPUT, 0,
2326 static int snd_hda_spdif_out_switch_put(struct snd_kcontrol *kcontrol,
2327 struct snd_ctl_elem_value *ucontrol)
2329 struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
2330 int idx = kcontrol->private_value;
2331 struct hda_spdif_out *spdif;
2336 if (WARN_ON(codec->spdif_out.used <= idx))
2338 mutex_lock(&codec->spdif_mutex);
2339 spdif = snd_array_elem(&codec->spdif_out, idx);
2341 val = spdif->ctls & ~AC_DIG1_ENABLE;
2342 if (ucontrol->value.integer.value[0])
2343 val |= AC_DIG1_ENABLE;
2344 change = spdif->ctls != val;
2346 if (change && nid != (u16)-1)
2347 set_spdif_ctls(codec, nid, val & 0xff, -1);
2348 mutex_unlock(&codec->spdif_mutex);
2352 static const struct snd_kcontrol_new dig_mixes[] = {
2354 .access = SNDRV_CTL_ELEM_ACCESS_READ,
2355 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
2356 .name = SNDRV_CTL_NAME_IEC958("", PLAYBACK, CON_MASK),
2357 .info = snd_hda_spdif_mask_info,
2358 .get = snd_hda_spdif_cmask_get,
2361 .access = SNDRV_CTL_ELEM_ACCESS_READ,
2362 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
2363 .name = SNDRV_CTL_NAME_IEC958("", PLAYBACK, PRO_MASK),
2364 .info = snd_hda_spdif_mask_info,
2365 .get = snd_hda_spdif_pmask_get,
2368 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
2369 .name = SNDRV_CTL_NAME_IEC958("", PLAYBACK, DEFAULT),
2370 .info = snd_hda_spdif_mask_info,
2371 .get = snd_hda_spdif_default_get,
2372 .put = snd_hda_spdif_default_put,
2375 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
2376 .name = SNDRV_CTL_NAME_IEC958("", PLAYBACK, SWITCH),
2377 .info = snd_hda_spdif_out_switch_info,
2378 .get = snd_hda_spdif_out_switch_get,
2379 .put = snd_hda_spdif_out_switch_put,
2385 * snd_hda_create_dig_out_ctls - create Output SPDIF-related controls
2386 * @codec: the HDA codec
2387 * @associated_nid: NID that new ctls associated with
2388 * @cvt_nid: converter NID
2389 * @type: HDA_PCM_TYPE_*
2390 * Creates controls related with the digital output.
2391 * Called from each patch supporting the digital out.
2393 * Returns 0 if successful, or a negative error code.
2395 int snd_hda_create_dig_out_ctls(struct hda_codec *codec,
2396 hda_nid_t associated_nid,
2401 struct snd_kcontrol *kctl;
2402 const struct snd_kcontrol_new *dig_mix;
2405 const int spdif_index = 16;
2406 struct hda_spdif_out *spdif;
2407 struct hda_bus *bus = codec->bus;
2409 if (bus->primary_dig_out_type == HDA_PCM_TYPE_HDMI &&
2410 type == HDA_PCM_TYPE_SPDIF) {
2412 } else if (bus->primary_dig_out_type == HDA_PCM_TYPE_SPDIF &&
2413 type == HDA_PCM_TYPE_HDMI) {
2414 /* suppose a single SPDIF device */
2415 for (dig_mix = dig_mixes; dig_mix->name; dig_mix++) {
2416 kctl = find_mixer_ctl(codec, dig_mix->name, 0, 0);
2419 kctl->id.index = spdif_index;
2421 bus->primary_dig_out_type = HDA_PCM_TYPE_HDMI;
2423 if (!bus->primary_dig_out_type)
2424 bus->primary_dig_out_type = type;
2426 idx = find_empty_mixer_ctl_idx(codec, "IEC958 Playback Switch", idx);
2428 codec_err(codec, "too many IEC958 outputs\n");
2431 spdif = snd_array_new(&codec->spdif_out);
2434 for (dig_mix = dig_mixes; dig_mix->name; dig_mix++) {
2435 kctl = snd_ctl_new1(dig_mix, codec);
2438 kctl->id.index = idx;
2439 kctl->private_value = codec->spdif_out.used - 1;
2440 err = snd_hda_ctl_add(codec, associated_nid, kctl);
2444 spdif->nid = cvt_nid;
2445 snd_hdac_regmap_read(&codec->core, cvt_nid,
2446 AC_VERB_GET_DIGI_CONVERT_1, &val);
2448 spdif->status = convert_to_spdif_status(spdif->ctls);
2451 EXPORT_SYMBOL_GPL(snd_hda_create_dig_out_ctls);
2454 * snd_hda_spdif_out_of_nid - get the hda_spdif_out entry from the given NID
2455 * @codec: the HDA codec
2458 * call within spdif_mutex lock
2460 struct hda_spdif_out *snd_hda_spdif_out_of_nid(struct hda_codec *codec,
2463 struct hda_spdif_out *spdif;
2466 snd_array_for_each(&codec->spdif_out, i, spdif) {
2467 if (spdif->nid == nid)
2472 EXPORT_SYMBOL_GPL(snd_hda_spdif_out_of_nid);
2475 * snd_hda_spdif_ctls_unassign - Unassign the given SPDIF ctl
2476 * @codec: the HDA codec
2477 * @idx: the SPDIF ctl index
2479 * Unassign the widget from the given SPDIF control.
2481 void snd_hda_spdif_ctls_unassign(struct hda_codec *codec, int idx)
2483 struct hda_spdif_out *spdif;
2485 if (WARN_ON(codec->spdif_out.used <= idx))
2487 mutex_lock(&codec->spdif_mutex);
2488 spdif = snd_array_elem(&codec->spdif_out, idx);
2489 spdif->nid = (u16)-1;
2490 mutex_unlock(&codec->spdif_mutex);
2492 EXPORT_SYMBOL_GPL(snd_hda_spdif_ctls_unassign);
2495 * snd_hda_spdif_ctls_assign - Assign the SPDIF controls to the given NID
2496 * @codec: the HDA codec
2497 * @idx: the SPDIF ctl idx
2500 * Assign the widget to the SPDIF control with the given index.
2502 void snd_hda_spdif_ctls_assign(struct hda_codec *codec, int idx, hda_nid_t nid)
2504 struct hda_spdif_out *spdif;
2507 if (WARN_ON(codec->spdif_out.used <= idx))
2509 mutex_lock(&codec->spdif_mutex);
2510 spdif = snd_array_elem(&codec->spdif_out, idx);
2511 if (spdif->nid != nid) {
2514 set_spdif_ctls(codec, nid, val & 0xff, (val >> 8) & 0xff);
2516 mutex_unlock(&codec->spdif_mutex);
2518 EXPORT_SYMBOL_GPL(snd_hda_spdif_ctls_assign);
2521 * SPDIF sharing with analog output
2523 static int spdif_share_sw_get(struct snd_kcontrol *kcontrol,
2524 struct snd_ctl_elem_value *ucontrol)
2526 struct hda_multi_out *mout = snd_kcontrol_chip(kcontrol);
2527 ucontrol->value.integer.value[0] = mout->share_spdif;
2531 static int spdif_share_sw_put(struct snd_kcontrol *kcontrol,
2532 struct snd_ctl_elem_value *ucontrol)
2534 struct hda_multi_out *mout = snd_kcontrol_chip(kcontrol);
2535 mout->share_spdif = !!ucontrol->value.integer.value[0];
2539 static const struct snd_kcontrol_new spdif_share_sw = {
2540 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
2541 .name = "IEC958 Default PCM Playback Switch",
2542 .info = snd_ctl_boolean_mono_info,
2543 .get = spdif_share_sw_get,
2544 .put = spdif_share_sw_put,
2548 * snd_hda_create_spdif_share_sw - create Default PCM switch
2549 * @codec: the HDA codec
2550 * @mout: multi-out instance
2552 int snd_hda_create_spdif_share_sw(struct hda_codec *codec,
2553 struct hda_multi_out *mout)
2555 struct snd_kcontrol *kctl;
2557 if (!mout->dig_out_nid)
2560 kctl = snd_ctl_new1(&spdif_share_sw, mout);
2563 /* ATTENTION: here mout is passed as private_data, instead of codec */
2564 return snd_hda_ctl_add(codec, mout->dig_out_nid, kctl);
2566 EXPORT_SYMBOL_GPL(snd_hda_create_spdif_share_sw);
2572 #define snd_hda_spdif_in_switch_info snd_hda_spdif_out_switch_info
2574 static int snd_hda_spdif_in_switch_get(struct snd_kcontrol *kcontrol,
2575 struct snd_ctl_elem_value *ucontrol)
2577 struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
2579 ucontrol->value.integer.value[0] = codec->spdif_in_enable;
2583 static int snd_hda_spdif_in_switch_put(struct snd_kcontrol *kcontrol,
2584 struct snd_ctl_elem_value *ucontrol)
2586 struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
2587 hda_nid_t nid = kcontrol->private_value;
2588 unsigned int val = !!ucontrol->value.integer.value[0];
2591 mutex_lock(&codec->spdif_mutex);
2592 change = codec->spdif_in_enable != val;
2594 codec->spdif_in_enable = val;
2595 snd_hdac_regmap_write(&codec->core, nid,
2596 AC_VERB_SET_DIGI_CONVERT_1, val);
2598 mutex_unlock(&codec->spdif_mutex);
2602 static int snd_hda_spdif_in_status_get(struct snd_kcontrol *kcontrol,
2603 struct snd_ctl_elem_value *ucontrol)
2605 struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
2606 hda_nid_t nid = kcontrol->private_value;
2610 snd_hdac_regmap_read(&codec->core, nid,
2611 AC_VERB_GET_DIGI_CONVERT_1, &val);
2612 sbits = convert_to_spdif_status(val);
2613 ucontrol->value.iec958.status[0] = sbits;
2614 ucontrol->value.iec958.status[1] = sbits >> 8;
2615 ucontrol->value.iec958.status[2] = sbits >> 16;
2616 ucontrol->value.iec958.status[3] = sbits >> 24;
2620 static const struct snd_kcontrol_new dig_in_ctls[] = {
2622 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
2623 .name = SNDRV_CTL_NAME_IEC958("", CAPTURE, SWITCH),
2624 .info = snd_hda_spdif_in_switch_info,
2625 .get = snd_hda_spdif_in_switch_get,
2626 .put = snd_hda_spdif_in_switch_put,
2629 .access = SNDRV_CTL_ELEM_ACCESS_READ,
2630 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
2631 .name = SNDRV_CTL_NAME_IEC958("", CAPTURE, DEFAULT),
2632 .info = snd_hda_spdif_mask_info,
2633 .get = snd_hda_spdif_in_status_get,
2639 * snd_hda_create_spdif_in_ctls - create Input SPDIF-related controls
2640 * @codec: the HDA codec
2641 * @nid: audio in widget NID
2643 * Creates controls related with the SPDIF input.
2644 * Called from each patch supporting the SPDIF in.
2646 * Returns 0 if successful, or a negative error code.
2648 int snd_hda_create_spdif_in_ctls(struct hda_codec *codec, hda_nid_t nid)
2651 struct snd_kcontrol *kctl;
2652 const struct snd_kcontrol_new *dig_mix;
2655 idx = find_empty_mixer_ctl_idx(codec, "IEC958 Capture Switch", 0);
2657 codec_err(codec, "too many IEC958 inputs\n");
2660 for (dig_mix = dig_in_ctls; dig_mix->name; dig_mix++) {
2661 kctl = snd_ctl_new1(dig_mix, codec);
2664 kctl->private_value = nid;
2665 err = snd_hda_ctl_add(codec, nid, kctl);
2669 codec->spdif_in_enable =
2670 snd_hda_codec_read(codec, nid, 0,
2671 AC_VERB_GET_DIGI_CONVERT_1, 0) &
2675 EXPORT_SYMBOL_GPL(snd_hda_create_spdif_in_ctls);
2678 * snd_hda_codec_set_power_to_all - Set the power state to all widgets
2679 * @codec: the HDA codec
2680 * @fg: function group (not used now)
2681 * @power_state: the power state to set (AC_PWRST_*)
2683 * Set the given power state to all widgets that have the power control.
2684 * If the codec has power_filter set, it evaluates the power state and
2685 * filter out if it's unchanged as D3.
2687 void snd_hda_codec_set_power_to_all(struct hda_codec *codec, hda_nid_t fg,
2688 unsigned int power_state)
2692 for_each_hda_codec_node(nid, codec) {
2693 unsigned int wcaps = get_wcaps(codec, nid);
2694 unsigned int state = power_state;
2695 if (!(wcaps & AC_WCAP_POWER))
2697 if (codec->power_filter) {
2698 state = codec->power_filter(codec, nid, power_state);
2699 if (state != power_state && power_state == AC_PWRST_D3)
2702 snd_hda_codec_write(codec, nid, 0, AC_VERB_SET_POWER_STATE,
2706 EXPORT_SYMBOL_GPL(snd_hda_codec_set_power_to_all);
2709 * snd_hda_codec_eapd_power_filter - A power filter callback for EAPD
2710 * @codec: the HDA codec
2712 * @power_state: power state to evalue
2714 * Don't power down the widget if it controls eapd and EAPD_BTLENABLE is set.
2715 * This can be used a codec power_filter callback.
2717 unsigned int snd_hda_codec_eapd_power_filter(struct hda_codec *codec,
2719 unsigned int power_state)
2721 if (nid == codec->core.afg || nid == codec->core.mfg)
2723 if (power_state == AC_PWRST_D3 &&
2724 get_wcaps_type(get_wcaps(codec, nid)) == AC_WID_PIN &&
2725 (snd_hda_query_pin_caps(codec, nid) & AC_PINCAP_EAPD)) {
2726 int eapd = snd_hda_codec_read(codec, nid, 0,
2727 AC_VERB_GET_EAPD_BTLENABLE, 0);
2733 EXPORT_SYMBOL_GPL(snd_hda_codec_eapd_power_filter);
2736 * set power state of the codec, and return the power state
2738 static unsigned int hda_set_power_state(struct hda_codec *codec,
2739 unsigned int power_state)
2741 hda_nid_t fg = codec->core.afg ? codec->core.afg : codec->core.mfg;
2746 /* this delay seems necessary to avoid click noise at power-down */
2747 if (power_state == AC_PWRST_D3) {
2748 if (codec->depop_delay < 0)
2749 msleep(codec_has_epss(codec) ? 10 : 100);
2750 else if (codec->depop_delay > 0)
2751 msleep(codec->depop_delay);
2752 flags = HDA_RW_NO_RESPONSE_FALLBACK;
2755 /* repeat power states setting at most 10 times*/
2756 for (count = 0; count < 10; count++) {
2757 if (codec->patch_ops.set_power_state)
2758 codec->patch_ops.set_power_state(codec, fg,
2761 state = power_state;
2762 if (codec->power_filter)
2763 state = codec->power_filter(codec, fg, state);
2764 if (state == power_state || power_state != AC_PWRST_D3)
2765 snd_hda_codec_read(codec, fg, flags,
2766 AC_VERB_SET_POWER_STATE,
2768 snd_hda_codec_set_power_to_all(codec, fg, power_state);
2770 state = snd_hda_sync_power_state(codec, fg, power_state);
2771 if (!(state & AC_PWRST_ERROR))
2778 /* sync power states of all widgets;
2779 * this is called at the end of codec parsing
2781 static void sync_power_up_states(struct hda_codec *codec)
2785 /* don't care if no filter is used */
2786 if (!codec->power_filter)
2789 for_each_hda_codec_node(nid, codec) {
2790 unsigned int wcaps = get_wcaps(codec, nid);
2791 unsigned int target;
2792 if (!(wcaps & AC_WCAP_POWER))
2794 target = codec->power_filter(codec, nid, AC_PWRST_D0);
2795 if (target == AC_PWRST_D0)
2797 if (!snd_hda_check_power_state(codec, nid, target))
2798 snd_hda_codec_write(codec, nid, 0,
2799 AC_VERB_SET_POWER_STATE, target);
2803 #ifdef CONFIG_SND_HDA_RECONFIG
2804 /* execute additional init verbs */
2805 static void hda_exec_init_verbs(struct hda_codec *codec)
2807 if (codec->init_verbs.list)
2808 snd_hda_sequence_write(codec, codec->init_verbs.list);
2811 static inline void hda_exec_init_verbs(struct hda_codec *codec) {}
2815 /* update the power on/off account with the current jiffies */
2816 static void update_power_acct(struct hda_codec *codec, bool on)
2818 unsigned long delta = jiffies - codec->power_jiffies;
2821 codec->power_on_acct += delta;
2823 codec->power_off_acct += delta;
2824 codec->power_jiffies += delta;
2827 void snd_hda_update_power_acct(struct hda_codec *codec)
2829 update_power_acct(codec, hda_codec_is_power_on(codec));
2833 * call suspend and power-down; used both from PM and power-save
2834 * this function returns the power state in the end
2836 static unsigned int hda_call_codec_suspend(struct hda_codec *codec)
2840 snd_hdac_enter_pm(&codec->core);
2841 if (codec->patch_ops.suspend)
2842 codec->patch_ops.suspend(codec);
2843 hda_cleanup_all_streams(codec);
2844 state = hda_set_power_state(codec, AC_PWRST_D3);
2845 update_power_acct(codec, true);
2846 snd_hdac_leave_pm(&codec->core);
2851 * kick up codec; used both from PM and power-save
2853 static void hda_call_codec_resume(struct hda_codec *codec)
2855 snd_hdac_enter_pm(&codec->core);
2856 if (codec->core.regmap)
2857 regcache_mark_dirty(codec->core.regmap);
2859 codec->power_jiffies = jiffies;
2861 hda_set_power_state(codec, AC_PWRST_D0);
2862 restore_shutup_pins(codec);
2863 hda_exec_init_verbs(codec);
2864 snd_hda_jack_set_dirty_all(codec);
2865 if (codec->patch_ops.resume)
2866 codec->patch_ops.resume(codec);
2868 if (codec->patch_ops.init)
2869 codec->patch_ops.init(codec);
2870 snd_hda_regmap_sync(codec);
2873 if (codec->jackpoll_interval)
2874 hda_jackpoll_work(&codec->jackpoll_work.work);
2876 snd_hda_jack_report_sync(codec);
2877 codec->core.dev.power.power_state = PMSG_ON;
2878 snd_hdac_leave_pm(&codec->core);
2881 static int hda_codec_runtime_suspend(struct device *dev)
2883 struct hda_codec *codec = dev_to_hda_codec(dev);
2886 /* Nothing to do if card registration fails and the component driver never probes */
2890 cancel_delayed_work_sync(&codec->jackpoll_work);
2891 state = hda_call_codec_suspend(codec);
2892 if (codec->link_down_at_suspend ||
2893 (codec_has_clkstop(codec) && codec_has_epss(codec) &&
2894 (state & AC_PWRST_CLK_STOP_OK)))
2895 snd_hdac_codec_link_down(&codec->core);
2896 snd_hda_codec_display_power(codec, false);
2900 static int hda_codec_runtime_resume(struct device *dev)
2902 struct hda_codec *codec = dev_to_hda_codec(dev);
2904 /* Nothing to do if card registration fails and the component driver never probes */
2908 snd_hda_codec_display_power(codec, true);
2909 snd_hdac_codec_link_up(&codec->core);
2910 hda_call_codec_resume(codec);
2911 pm_runtime_mark_last_busy(dev);
2915 #endif /* CONFIG_PM */
2917 #ifdef CONFIG_PM_SLEEP
2918 static int hda_codec_pm_prepare(struct device *dev)
2920 dev->power.power_state = PMSG_SUSPEND;
2921 return pm_runtime_suspended(dev);
2924 static void hda_codec_pm_complete(struct device *dev)
2926 struct hda_codec *codec = dev_to_hda_codec(dev);
2928 /* If no other pm-functions are called between prepare() and complete() */
2929 if (dev->power.power_state.event == PM_EVENT_SUSPEND)
2930 dev->power.power_state = PMSG_RESUME;
2932 if (pm_runtime_suspended(dev) && (codec->jackpoll_interval ||
2933 hda_codec_need_resume(codec) || codec->forced_resume))
2934 pm_request_resume(dev);
2937 static int hda_codec_pm_suspend(struct device *dev)
2939 dev->power.power_state = PMSG_SUSPEND;
2940 return pm_runtime_force_suspend(dev);
2943 static int hda_codec_pm_resume(struct device *dev)
2945 dev->power.power_state = PMSG_RESUME;
2946 return pm_runtime_force_resume(dev);
2949 static int hda_codec_pm_freeze(struct device *dev)
2951 dev->power.power_state = PMSG_FREEZE;
2952 return pm_runtime_force_suspend(dev);
2955 static int hda_codec_pm_thaw(struct device *dev)
2957 dev->power.power_state = PMSG_THAW;
2958 return pm_runtime_force_resume(dev);
2961 static int hda_codec_pm_restore(struct device *dev)
2963 dev->power.power_state = PMSG_RESTORE;
2964 return pm_runtime_force_resume(dev);
2966 #endif /* CONFIG_PM_SLEEP */
2968 /* referred in hda_bind.c */
2969 const struct dev_pm_ops hda_codec_driver_pm = {
2970 #ifdef CONFIG_PM_SLEEP
2971 .prepare = hda_codec_pm_prepare,
2972 .complete = hda_codec_pm_complete,
2973 .suspend = hda_codec_pm_suspend,
2974 .resume = hda_codec_pm_resume,
2975 .freeze = hda_codec_pm_freeze,
2976 .thaw = hda_codec_pm_thaw,
2977 .poweroff = hda_codec_pm_suspend,
2978 .restore = hda_codec_pm_restore,
2979 #endif /* CONFIG_PM_SLEEP */
2980 SET_RUNTIME_PM_OPS(hda_codec_runtime_suspend, hda_codec_runtime_resume,
2984 /* suspend the codec at shutdown; called from driver's shutdown callback */
2985 void snd_hda_codec_shutdown(struct hda_codec *codec)
2987 struct hda_pcm *cpcm;
2989 list_for_each_entry(cpcm, &codec->pcm_list_head, list)
2990 snd_pcm_suspend_all(cpcm->pcm);
2992 pm_runtime_force_suspend(hda_codec_dev(codec));
2993 pm_runtime_disable(hda_codec_dev(codec));
2997 * add standard channel maps if not specified
2999 static int add_std_chmaps(struct hda_codec *codec)
3001 struct hda_pcm *pcm;
3004 list_for_each_entry(pcm, &codec->pcm_list_head, list) {
3005 for (str = 0; str < 2; str++) {
3006 struct hda_pcm_stream *hinfo = &pcm->stream[str];
3007 struct snd_pcm_chmap *chmap;
3008 const struct snd_pcm_chmap_elem *elem;
3010 if (!pcm->pcm || pcm->own_chmap || !hinfo->substreams)
3012 elem = hinfo->chmap ? hinfo->chmap : snd_pcm_std_chmaps;
3013 err = snd_pcm_add_chmap_ctls(pcm->pcm, str, elem,
3014 hinfo->channels_max,
3018 chmap->channel_mask = SND_PCM_CHMAP_MASK_2468;
3024 /* default channel maps for 2.1 speakers;
3025 * since HD-audio supports only stereo, odd number channels are omitted
3027 const struct snd_pcm_chmap_elem snd_pcm_2_1_chmaps[] = {
3029 .map = { SNDRV_CHMAP_FL, SNDRV_CHMAP_FR } },
3031 .map = { SNDRV_CHMAP_FL, SNDRV_CHMAP_FR,
3032 SNDRV_CHMAP_LFE, SNDRV_CHMAP_LFE } },
3035 EXPORT_SYMBOL_GPL(snd_pcm_2_1_chmaps);
3037 int snd_hda_codec_build_controls(struct hda_codec *codec)
3040 hda_exec_init_verbs(codec);
3041 /* continue to initialize... */
3042 if (codec->patch_ops.init)
3043 err = codec->patch_ops.init(codec);
3044 if (!err && codec->patch_ops.build_controls)
3045 err = codec->patch_ops.build_controls(codec);
3049 /* we create chmaps here instead of build_pcms */
3050 err = add_std_chmaps(codec);
3054 if (codec->jackpoll_interval)
3055 hda_jackpoll_work(&codec->jackpoll_work.work);
3057 snd_hda_jack_report_sync(codec); /* call at the last init point */
3058 sync_power_up_states(codec);
3061 EXPORT_SYMBOL_GPL(snd_hda_codec_build_controls);
3066 static int hda_pcm_default_open_close(struct hda_pcm_stream *hinfo,
3067 struct hda_codec *codec,
3068 struct snd_pcm_substream *substream)
3073 static int hda_pcm_default_prepare(struct hda_pcm_stream *hinfo,
3074 struct hda_codec *codec,
3075 unsigned int stream_tag,
3076 unsigned int format,
3077 struct snd_pcm_substream *substream)
3079 snd_hda_codec_setup_stream(codec, hinfo->nid, stream_tag, 0, format);
3083 static int hda_pcm_default_cleanup(struct hda_pcm_stream *hinfo,
3084 struct hda_codec *codec,
3085 struct snd_pcm_substream *substream)
3087 snd_hda_codec_cleanup_stream(codec, hinfo->nid);
3091 static int set_pcm_default_values(struct hda_codec *codec,
3092 struct hda_pcm_stream *info)
3096 /* query support PCM information from the given NID */
3097 if (info->nid && (!info->rates || !info->formats)) {
3098 err = snd_hda_query_supported_pcm(codec, info->nid,
3099 info->rates ? NULL : &info->rates,
3100 info->formats ? NULL : &info->formats,
3101 info->maxbps ? NULL : &info->maxbps);
3105 if (info->ops.open == NULL)
3106 info->ops.open = hda_pcm_default_open_close;
3107 if (info->ops.close == NULL)
3108 info->ops.close = hda_pcm_default_open_close;
3109 if (info->ops.prepare == NULL) {
3110 if (snd_BUG_ON(!info->nid))
3112 info->ops.prepare = hda_pcm_default_prepare;
3114 if (info->ops.cleanup == NULL) {
3115 if (snd_BUG_ON(!info->nid))
3117 info->ops.cleanup = hda_pcm_default_cleanup;
3123 * codec prepare/cleanup entries
3126 * snd_hda_codec_prepare - Prepare a stream
3127 * @codec: the HDA codec
3128 * @hinfo: PCM information
3129 * @stream: stream tag to assign
3130 * @format: format id to assign
3131 * @substream: PCM substream to assign
3133 * Calls the prepare callback set by the codec with the given arguments.
3134 * Clean up the inactive streams when successful.
3136 int snd_hda_codec_prepare(struct hda_codec *codec,
3137 struct hda_pcm_stream *hinfo,
3138 unsigned int stream,
3139 unsigned int format,
3140 struct snd_pcm_substream *substream)
3143 mutex_lock(&codec->bus->prepare_mutex);
3144 if (hinfo->ops.prepare)
3145 ret = hinfo->ops.prepare(hinfo, codec, stream, format,
3150 purify_inactive_streams(codec);
3151 mutex_unlock(&codec->bus->prepare_mutex);
3154 EXPORT_SYMBOL_GPL(snd_hda_codec_prepare);
3157 * snd_hda_codec_cleanup - Clean up stream resources
3158 * @codec: the HDA codec
3159 * @hinfo: PCM information
3160 * @substream: PCM substream
3162 * Calls the cleanup callback set by the codec with the given arguments.
3164 void snd_hda_codec_cleanup(struct hda_codec *codec,
3165 struct hda_pcm_stream *hinfo,
3166 struct snd_pcm_substream *substream)
3168 mutex_lock(&codec->bus->prepare_mutex);
3169 if (hinfo->ops.cleanup)
3170 hinfo->ops.cleanup(hinfo, codec, substream);
3171 mutex_unlock(&codec->bus->prepare_mutex);
3173 EXPORT_SYMBOL_GPL(snd_hda_codec_cleanup);
3176 const char *snd_hda_pcm_type_name[HDA_PCM_NTYPES] = {
3177 "Audio", "SPDIF", "HDMI", "Modem"
3181 * get the empty PCM device number to assign
3183 static int get_empty_pcm_device(struct hda_bus *bus, unsigned int type)
3185 /* audio device indices; not linear to keep compatibility */
3186 /* assigned to static slots up to dev#10; if more needed, assign
3187 * the later slot dynamically (when CONFIG_SND_DYNAMIC_MINORS=y)
3189 static const int audio_idx[HDA_PCM_NTYPES][5] = {
3190 [HDA_PCM_TYPE_AUDIO] = { 0, 2, 4, 5, -1 },
3191 [HDA_PCM_TYPE_SPDIF] = { 1, -1 },
3192 [HDA_PCM_TYPE_HDMI] = { 3, 7, 8, 9, -1 },
3193 [HDA_PCM_TYPE_MODEM] = { 6, -1 },
3197 if (type >= HDA_PCM_NTYPES) {
3198 dev_err(bus->card->dev, "Invalid PCM type %d\n", type);
3202 for (i = 0; audio_idx[type][i] >= 0; i++) {
3203 #ifndef CONFIG_SND_DYNAMIC_MINORS
3204 if (audio_idx[type][i] >= 8)
3207 if (!test_and_set_bit(audio_idx[type][i], bus->pcm_dev_bits))
3208 return audio_idx[type][i];
3211 #ifdef CONFIG_SND_DYNAMIC_MINORS
3212 /* non-fixed slots starting from 10 */
3213 for (i = 10; i < 32; i++) {
3214 if (!test_and_set_bit(i, bus->pcm_dev_bits))
3219 dev_warn(bus->card->dev, "Too many %s devices\n",
3220 snd_hda_pcm_type_name[type]);
3221 #ifndef CONFIG_SND_DYNAMIC_MINORS
3222 dev_warn(bus->card->dev,
3223 "Consider building the kernel with CONFIG_SND_DYNAMIC_MINORS=y\n");
3228 /* call build_pcms ops of the given codec and set up the default parameters */
3229 int snd_hda_codec_parse_pcms(struct hda_codec *codec)
3231 struct hda_pcm *cpcm;
3234 if (!list_empty(&codec->pcm_list_head))
3235 return 0; /* already parsed */
3237 if (!codec->patch_ops.build_pcms)
3240 err = codec->patch_ops.build_pcms(codec);
3242 codec_err(codec, "cannot build PCMs for #%d (error %d)\n",
3243 codec->core.addr, err);
3247 list_for_each_entry(cpcm, &codec->pcm_list_head, list) {
3250 for (stream = 0; stream < 2; stream++) {
3251 struct hda_pcm_stream *info = &cpcm->stream[stream];
3253 if (!info->substreams)
3255 err = set_pcm_default_values(codec, info);
3258 "fail to setup default for PCM %s\n",
3267 EXPORT_SYMBOL_GPL(snd_hda_codec_parse_pcms);
3269 /* assign all PCMs of the given codec */
3270 int snd_hda_codec_build_pcms(struct hda_codec *codec)
3272 struct hda_bus *bus = codec->bus;
3273 struct hda_pcm *cpcm;
3276 err = snd_hda_codec_parse_pcms(codec);
3280 /* attach a new PCM streams */
3281 list_for_each_entry(cpcm, &codec->pcm_list_head, list) {
3283 continue; /* already attached */
3284 if (!cpcm->stream[0].substreams && !cpcm->stream[1].substreams)
3285 continue; /* no substreams assigned */
3287 dev = get_empty_pcm_device(bus, cpcm->pcm_type);
3289 cpcm->device = SNDRV_PCM_INVALID_DEVICE;
3290 continue; /* no fatal error */
3293 err = snd_hda_attach_pcm_stream(bus, codec, cpcm);
3296 "cannot attach PCM stream %d for codec #%d\n",
3297 dev, codec->core.addr);
3298 continue; /* no fatal error */
3306 * snd_hda_add_new_ctls - create controls from the array
3307 * @codec: the HDA codec
3308 * @knew: the array of struct snd_kcontrol_new
3310 * This helper function creates and add new controls in the given array.
3311 * The array must be terminated with an empty entry as terminator.
3313 * Returns 0 if successful, or a negative error code.
3315 int snd_hda_add_new_ctls(struct hda_codec *codec,
3316 const struct snd_kcontrol_new *knew)
3320 for (; knew->name; knew++) {
3321 struct snd_kcontrol *kctl;
3322 int addr = 0, idx = 0;
3323 if (knew->iface == (__force snd_ctl_elem_iface_t)-1)
3324 continue; /* skip this codec private value */
3326 kctl = snd_ctl_new1(knew, codec);
3330 kctl->id.device = addr;
3332 kctl->id.index = idx;
3333 err = snd_hda_ctl_add(codec, 0, kctl);
3336 /* try first with another device index corresponding to
3337 * the codec addr; if it still fails (or it's the
3338 * primary codec), then try another control index
3340 if (!addr && codec->core.addr)
3341 addr = codec->core.addr;
3342 else if (!idx && !knew->index) {
3343 idx = find_empty_mixer_ctl_idx(codec,
3353 EXPORT_SYMBOL_GPL(snd_hda_add_new_ctls);
3356 static void codec_set_power_save(struct hda_codec *codec, int delay)
3358 struct device *dev = hda_codec_dev(codec);
3360 if (delay == 0 && codec->auto_runtime_pm)
3364 pm_runtime_set_autosuspend_delay(dev, delay);
3365 pm_runtime_use_autosuspend(dev);
3366 pm_runtime_allow(dev);
3367 if (!pm_runtime_suspended(dev))
3368 pm_runtime_mark_last_busy(dev);
3370 pm_runtime_dont_use_autosuspend(dev);
3371 pm_runtime_forbid(dev);
3376 * snd_hda_set_power_save - reprogram autosuspend for the given delay
3377 * @bus: HD-audio bus
3378 * @delay: autosuspend delay in msec, 0 = off
3380 * Synchronize the runtime PM autosuspend state from the power_save option.
3382 void snd_hda_set_power_save(struct hda_bus *bus, int delay)
3384 struct hda_codec *c;
3386 list_for_each_codec(c, bus)
3387 codec_set_power_save(c, delay);
3389 EXPORT_SYMBOL_GPL(snd_hda_set_power_save);
3392 * snd_hda_check_amp_list_power - Check the amp list and update the power
3393 * @codec: HD-audio codec
3394 * @check: the object containing an AMP list and the status
3395 * @nid: NID to check / update
3397 * Check whether the given NID is in the amp list. If it's in the list,
3398 * check the current AMP status, and update the power-status according
3399 * to the mute status.
3401 * This function is supposed to be set or called from the check_power_status
3404 int snd_hda_check_amp_list_power(struct hda_codec *codec,
3405 struct hda_loopback_check *check,
3408 const struct hda_amp_list *p;
3411 if (!check->amplist)
3413 for (p = check->amplist; p->nid; p++) {
3418 return 0; /* nothing changed */
3420 for (p = check->amplist; p->nid; p++) {
3421 for (ch = 0; ch < 2; ch++) {
3422 v = snd_hda_codec_amp_read(codec, p->nid, ch, p->dir,
3424 if (!(v & HDA_AMP_MUTE) && v > 0) {
3425 if (!check->power_on) {
3426 check->power_on = 1;
3427 snd_hda_power_up_pm(codec);
3433 if (check->power_on) {
3434 check->power_on = 0;
3435 snd_hda_power_down_pm(codec);
3439 EXPORT_SYMBOL_GPL(snd_hda_check_amp_list_power);
3447 * snd_hda_input_mux_info - Info callback helper for the input-mux enum
3448 * @imux: imux helper object
3449 * @uinfo: pointer to get/store the data
3451 int snd_hda_input_mux_info(const struct hda_input_mux *imux,
3452 struct snd_ctl_elem_info *uinfo)
3456 uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
3458 uinfo->value.enumerated.items = imux->num_items;
3459 if (!imux->num_items)
3461 index = uinfo->value.enumerated.item;
3462 if (index >= imux->num_items)
3463 index = imux->num_items - 1;
3464 strcpy(uinfo->value.enumerated.name, imux->items[index].label);
3467 EXPORT_SYMBOL_GPL(snd_hda_input_mux_info);
3470 * snd_hda_input_mux_put - Put callback helper for the input-mux enum
3471 * @codec: the HDA codec
3472 * @imux: imux helper object
3473 * @ucontrol: pointer to get/store the data
3474 * @nid: input mux NID
3475 * @cur_val: pointer to get/store the current imux value
3477 int snd_hda_input_mux_put(struct hda_codec *codec,
3478 const struct hda_input_mux *imux,
3479 struct snd_ctl_elem_value *ucontrol,
3481 unsigned int *cur_val)
3485 if (!imux->num_items)
3487 idx = ucontrol->value.enumerated.item[0];
3488 if (idx >= imux->num_items)
3489 idx = imux->num_items - 1;
3490 if (*cur_val == idx)
3492 snd_hda_codec_write_cache(codec, nid, 0, AC_VERB_SET_CONNECT_SEL,
3493 imux->items[idx].index);
3497 EXPORT_SYMBOL_GPL(snd_hda_input_mux_put);
3501 * snd_hda_enum_helper_info - Helper for simple enum ctls
3502 * @kcontrol: ctl element
3503 * @uinfo: pointer to get/store the data
3504 * @num_items: number of enum items
3505 * @texts: enum item string array
3507 * process kcontrol info callback of a simple string enum array
3508 * when @num_items is 0 or @texts is NULL, assume a boolean enum array
3510 int snd_hda_enum_helper_info(struct snd_kcontrol *kcontrol,
3511 struct snd_ctl_elem_info *uinfo,
3512 int num_items, const char * const *texts)
3514 static const char * const texts_default[] = {
3515 "Disabled", "Enabled"
3518 if (!texts || !num_items) {
3520 texts = texts_default;
3523 return snd_ctl_enum_info(uinfo, 1, num_items, texts);
3525 EXPORT_SYMBOL_GPL(snd_hda_enum_helper_info);
3528 * Multi-channel / digital-out PCM helper functions
3531 /* setup SPDIF output stream */
3532 static void setup_dig_out_stream(struct hda_codec *codec, hda_nid_t nid,
3533 unsigned int stream_tag, unsigned int format)
3535 struct hda_spdif_out *spdif;
3536 unsigned int curr_fmt;
3539 spdif = snd_hda_spdif_out_of_nid(codec, nid);
3540 /* Add sanity check to pass klockwork check.
3541 * This should never happen.
3543 if (WARN_ON(spdif == NULL))
3546 curr_fmt = snd_hda_codec_read(codec, nid, 0,
3547 AC_VERB_GET_STREAM_FORMAT, 0);
3548 reset = codec->spdif_status_reset &&
3549 (spdif->ctls & AC_DIG1_ENABLE) &&
3552 /* turn off SPDIF if needed; otherwise the IEC958 bits won't be
3555 set_dig_out_convert(codec, nid,
3556 spdif->ctls & ~AC_DIG1_ENABLE & 0xff,
3558 snd_hda_codec_setup_stream(codec, nid, stream_tag, 0, format);
3559 if (codec->follower_dig_outs) {
3561 for (d = codec->follower_dig_outs; *d; d++)
3562 snd_hda_codec_setup_stream(codec, *d, stream_tag, 0,
3565 /* turn on again (if needed) */
3567 set_dig_out_convert(codec, nid,
3568 spdif->ctls & 0xff, -1);
3571 static void cleanup_dig_out_stream(struct hda_codec *codec, hda_nid_t nid)
3573 snd_hda_codec_cleanup_stream(codec, nid);
3574 if (codec->follower_dig_outs) {
3576 for (d = codec->follower_dig_outs; *d; d++)
3577 snd_hda_codec_cleanup_stream(codec, *d);
3582 * snd_hda_multi_out_dig_open - open the digital out in the exclusive mode
3583 * @codec: the HDA codec
3584 * @mout: hda_multi_out object
3586 int snd_hda_multi_out_dig_open(struct hda_codec *codec,
3587 struct hda_multi_out *mout)
3589 mutex_lock(&codec->spdif_mutex);
3590 if (mout->dig_out_used == HDA_DIG_ANALOG_DUP)
3591 /* already opened as analog dup; reset it once */
3592 cleanup_dig_out_stream(codec, mout->dig_out_nid);
3593 mout->dig_out_used = HDA_DIG_EXCLUSIVE;
3594 mutex_unlock(&codec->spdif_mutex);
3597 EXPORT_SYMBOL_GPL(snd_hda_multi_out_dig_open);
3600 * snd_hda_multi_out_dig_prepare - prepare the digital out stream
3601 * @codec: the HDA codec
3602 * @mout: hda_multi_out object
3603 * @stream_tag: stream tag to assign
3604 * @format: format id to assign
3605 * @substream: PCM substream to assign
3607 int snd_hda_multi_out_dig_prepare(struct hda_codec *codec,
3608 struct hda_multi_out *mout,
3609 unsigned int stream_tag,
3610 unsigned int format,
3611 struct snd_pcm_substream *substream)
3613 mutex_lock(&codec->spdif_mutex);
3614 setup_dig_out_stream(codec, mout->dig_out_nid, stream_tag, format);
3615 mutex_unlock(&codec->spdif_mutex);
3618 EXPORT_SYMBOL_GPL(snd_hda_multi_out_dig_prepare);
3621 * snd_hda_multi_out_dig_cleanup - clean-up the digital out stream
3622 * @codec: the HDA codec
3623 * @mout: hda_multi_out object
3625 int snd_hda_multi_out_dig_cleanup(struct hda_codec *codec,
3626 struct hda_multi_out *mout)
3628 mutex_lock(&codec->spdif_mutex);
3629 cleanup_dig_out_stream(codec, mout->dig_out_nid);
3630 mutex_unlock(&codec->spdif_mutex);
3633 EXPORT_SYMBOL_GPL(snd_hda_multi_out_dig_cleanup);
3636 * snd_hda_multi_out_dig_close - release the digital out stream
3637 * @codec: the HDA codec
3638 * @mout: hda_multi_out object
3640 int snd_hda_multi_out_dig_close(struct hda_codec *codec,
3641 struct hda_multi_out *mout)
3643 mutex_lock(&codec->spdif_mutex);
3644 mout->dig_out_used = 0;
3645 mutex_unlock(&codec->spdif_mutex);
3648 EXPORT_SYMBOL_GPL(snd_hda_multi_out_dig_close);
3651 * snd_hda_multi_out_analog_open - open analog outputs
3652 * @codec: the HDA codec
3653 * @mout: hda_multi_out object
3654 * @substream: PCM substream to assign
3655 * @hinfo: PCM information to assign
3657 * Open analog outputs and set up the hw-constraints.
3658 * If the digital outputs can be opened as follower, open the digital
3661 int snd_hda_multi_out_analog_open(struct hda_codec *codec,
3662 struct hda_multi_out *mout,
3663 struct snd_pcm_substream *substream,
3664 struct hda_pcm_stream *hinfo)
3666 struct snd_pcm_runtime *runtime = substream->runtime;
3667 runtime->hw.channels_max = mout->max_channels;
3668 if (mout->dig_out_nid) {
3669 if (!mout->analog_rates) {
3670 mout->analog_rates = hinfo->rates;
3671 mout->analog_formats = hinfo->formats;
3672 mout->analog_maxbps = hinfo->maxbps;
3674 runtime->hw.rates = mout->analog_rates;
3675 runtime->hw.formats = mout->analog_formats;
3676 hinfo->maxbps = mout->analog_maxbps;
3678 if (!mout->spdif_rates) {
3679 snd_hda_query_supported_pcm(codec, mout->dig_out_nid,
3681 &mout->spdif_formats,
3682 &mout->spdif_maxbps);
3684 mutex_lock(&codec->spdif_mutex);
3685 if (mout->share_spdif) {
3686 if ((runtime->hw.rates & mout->spdif_rates) &&
3687 (runtime->hw.formats & mout->spdif_formats)) {
3688 runtime->hw.rates &= mout->spdif_rates;
3689 runtime->hw.formats &= mout->spdif_formats;
3690 if (mout->spdif_maxbps < hinfo->maxbps)
3691 hinfo->maxbps = mout->spdif_maxbps;
3693 mout->share_spdif = 0;
3694 /* FIXME: need notify? */
3697 mutex_unlock(&codec->spdif_mutex);
3699 return snd_pcm_hw_constraint_step(substream->runtime, 0,
3700 SNDRV_PCM_HW_PARAM_CHANNELS, 2);
3702 EXPORT_SYMBOL_GPL(snd_hda_multi_out_analog_open);
3705 * snd_hda_multi_out_analog_prepare - Preapre the analog outputs.
3706 * @codec: the HDA codec
3707 * @mout: hda_multi_out object
3708 * @stream_tag: stream tag to assign
3709 * @format: format id to assign
3710 * @substream: PCM substream to assign
3712 * Set up the i/o for analog out.
3713 * When the digital out is available, copy the front out to digital out, too.
3715 int snd_hda_multi_out_analog_prepare(struct hda_codec *codec,
3716 struct hda_multi_out *mout,
3717 unsigned int stream_tag,
3718 unsigned int format,
3719 struct snd_pcm_substream *substream)
3721 const hda_nid_t *nids = mout->dac_nids;
3722 int chs = substream->runtime->channels;
3723 struct hda_spdif_out *spdif;
3726 mutex_lock(&codec->spdif_mutex);
3727 spdif = snd_hda_spdif_out_of_nid(codec, mout->dig_out_nid);
3728 if (mout->dig_out_nid && mout->share_spdif &&
3729 mout->dig_out_used != HDA_DIG_EXCLUSIVE) {
3730 if (chs == 2 && spdif != NULL &&
3731 snd_hda_is_supported_format(codec, mout->dig_out_nid,
3733 !(spdif->status & IEC958_AES0_NONAUDIO)) {
3734 mout->dig_out_used = HDA_DIG_ANALOG_DUP;
3735 setup_dig_out_stream(codec, mout->dig_out_nid,
3736 stream_tag, format);
3738 mout->dig_out_used = 0;
3739 cleanup_dig_out_stream(codec, mout->dig_out_nid);
3742 mutex_unlock(&codec->spdif_mutex);
3745 snd_hda_codec_setup_stream(codec, nids[HDA_FRONT], stream_tag,
3747 if (!mout->no_share_stream &&
3748 mout->hp_nid && mout->hp_nid != nids[HDA_FRONT])
3749 /* headphone out will just decode front left/right (stereo) */
3750 snd_hda_codec_setup_stream(codec, mout->hp_nid, stream_tag,
3752 /* extra outputs copied from front */
3753 for (i = 0; i < ARRAY_SIZE(mout->hp_out_nid); i++)
3754 if (!mout->no_share_stream && mout->hp_out_nid[i])
3755 snd_hda_codec_setup_stream(codec,
3756 mout->hp_out_nid[i],
3757 stream_tag, 0, format);
3760 for (i = 1; i < mout->num_dacs; i++) {
3761 if (chs >= (i + 1) * 2) /* independent out */
3762 snd_hda_codec_setup_stream(codec, nids[i], stream_tag,
3764 else if (!mout->no_share_stream) /* copy front */
3765 snd_hda_codec_setup_stream(codec, nids[i], stream_tag,
3769 /* extra surrounds */
3770 for (i = 0; i < ARRAY_SIZE(mout->extra_out_nid); i++) {
3772 if (!mout->extra_out_nid[i])
3774 if (chs >= (i + 1) * 2)
3776 else if (!mout->no_share_stream)
3778 snd_hda_codec_setup_stream(codec, mout->extra_out_nid[i],
3779 stream_tag, ch, format);
3784 EXPORT_SYMBOL_GPL(snd_hda_multi_out_analog_prepare);
3787 * snd_hda_multi_out_analog_cleanup - clean up the setting for analog out
3788 * @codec: the HDA codec
3789 * @mout: hda_multi_out object
3791 int snd_hda_multi_out_analog_cleanup(struct hda_codec *codec,
3792 struct hda_multi_out *mout)
3794 const hda_nid_t *nids = mout->dac_nids;
3797 for (i = 0; i < mout->num_dacs; i++)
3798 snd_hda_codec_cleanup_stream(codec, nids[i]);
3800 snd_hda_codec_cleanup_stream(codec, mout->hp_nid);
3801 for (i = 0; i < ARRAY_SIZE(mout->hp_out_nid); i++)
3802 if (mout->hp_out_nid[i])
3803 snd_hda_codec_cleanup_stream(codec,
3804 mout->hp_out_nid[i]);
3805 for (i = 0; i < ARRAY_SIZE(mout->extra_out_nid); i++)
3806 if (mout->extra_out_nid[i])
3807 snd_hda_codec_cleanup_stream(codec,
3808 mout->extra_out_nid[i]);
3809 mutex_lock(&codec->spdif_mutex);
3810 if (mout->dig_out_nid && mout->dig_out_used == HDA_DIG_ANALOG_DUP) {
3811 cleanup_dig_out_stream(codec, mout->dig_out_nid);
3812 mout->dig_out_used = 0;
3814 mutex_unlock(&codec->spdif_mutex);
3817 EXPORT_SYMBOL_GPL(snd_hda_multi_out_analog_cleanup);
3820 * snd_hda_get_default_vref - Get the default (mic) VREF pin bits
3821 * @codec: the HDA codec
3822 * @pin: referred pin NID
3824 * Guess the suitable VREF pin bits to be set as the pin-control value.
3825 * Note: the function doesn't set the AC_PINCTL_IN_EN bit.
3827 unsigned int snd_hda_get_default_vref(struct hda_codec *codec, hda_nid_t pin)
3829 unsigned int pincap;
3830 unsigned int oldval;
3831 oldval = snd_hda_codec_read(codec, pin, 0,
3832 AC_VERB_GET_PIN_WIDGET_CONTROL, 0);
3833 pincap = snd_hda_query_pin_caps(codec, pin);
3834 pincap = (pincap & AC_PINCAP_VREF) >> AC_PINCAP_VREF_SHIFT;
3835 /* Exception: if the default pin setup is vref50, we give it priority */
3836 if ((pincap & AC_PINCAP_VREF_80) && oldval != PIN_VREF50)
3837 return AC_PINCTL_VREF_80;
3838 else if (pincap & AC_PINCAP_VREF_50)
3839 return AC_PINCTL_VREF_50;
3840 else if (pincap & AC_PINCAP_VREF_100)
3841 return AC_PINCTL_VREF_100;
3842 else if (pincap & AC_PINCAP_VREF_GRD)
3843 return AC_PINCTL_VREF_GRD;
3844 return AC_PINCTL_VREF_HIZ;
3846 EXPORT_SYMBOL_GPL(snd_hda_get_default_vref);
3849 * snd_hda_correct_pin_ctl - correct the pin ctl value for matching with the pin cap
3850 * @codec: the HDA codec
3851 * @pin: referred pin NID
3852 * @val: pin ctl value to audit
3854 unsigned int snd_hda_correct_pin_ctl(struct hda_codec *codec,
3855 hda_nid_t pin, unsigned int val)
3857 static const unsigned int cap_lists[][2] = {
3858 { AC_PINCTL_VREF_100, AC_PINCAP_VREF_100 },
3859 { AC_PINCTL_VREF_80, AC_PINCAP_VREF_80 },
3860 { AC_PINCTL_VREF_50, AC_PINCAP_VREF_50 },
3861 { AC_PINCTL_VREF_GRD, AC_PINCAP_VREF_GRD },
3867 cap = snd_hda_query_pin_caps(codec, pin);
3869 return val; /* don't know what to do... */
3871 if (val & AC_PINCTL_OUT_EN) {
3872 if (!(cap & AC_PINCAP_OUT))
3873 val &= ~(AC_PINCTL_OUT_EN | AC_PINCTL_HP_EN);
3874 else if ((val & AC_PINCTL_HP_EN) && !(cap & AC_PINCAP_HP_DRV))
3875 val &= ~AC_PINCTL_HP_EN;
3878 if (val & AC_PINCTL_IN_EN) {
3879 if (!(cap & AC_PINCAP_IN))
3880 val &= ~(AC_PINCTL_IN_EN | AC_PINCTL_VREFEN);
3882 unsigned int vcap, vref;
3884 vcap = (cap & AC_PINCAP_VREF) >> AC_PINCAP_VREF_SHIFT;
3885 vref = val & AC_PINCTL_VREFEN;
3886 for (i = 0; i < ARRAY_SIZE(cap_lists); i++) {
3887 if (vref == cap_lists[i][0] &&
3888 !(vcap & cap_lists[i][1])) {
3889 if (i == ARRAY_SIZE(cap_lists) - 1)
3890 vref = AC_PINCTL_VREF_HIZ;
3892 vref = cap_lists[i + 1][0];
3895 val &= ~AC_PINCTL_VREFEN;
3902 EXPORT_SYMBOL_GPL(snd_hda_correct_pin_ctl);
3905 * _snd_hda_set_pin_ctl - Helper to set pin ctl value
3906 * @codec: the HDA codec
3907 * @pin: referred pin NID
3908 * @val: pin control value to set
3909 * @cached: access over codec pinctl cache or direct write
3911 * This function is a helper to set a pin ctl value more safely.
3912 * It corrects the pin ctl value via snd_hda_correct_pin_ctl(), stores the
3913 * value in pin target array via snd_hda_codec_set_pin_target(), then
3914 * actually writes the value via either snd_hda_codec_write_cache() or
3915 * snd_hda_codec_write() depending on @cached flag.
3917 int _snd_hda_set_pin_ctl(struct hda_codec *codec, hda_nid_t pin,
3918 unsigned int val, bool cached)
3920 val = snd_hda_correct_pin_ctl(codec, pin, val);
3921 snd_hda_codec_set_pin_target(codec, pin, val);
3923 return snd_hda_codec_write_cache(codec, pin, 0,
3924 AC_VERB_SET_PIN_WIDGET_CONTROL, val);
3926 return snd_hda_codec_write(codec, pin, 0,
3927 AC_VERB_SET_PIN_WIDGET_CONTROL, val);
3929 EXPORT_SYMBOL_GPL(_snd_hda_set_pin_ctl);
3932 * snd_hda_add_imux_item - Add an item to input_mux
3933 * @codec: the HDA codec
3934 * @imux: imux helper object
3935 * @label: the name of imux item to assign
3936 * @index: index number of imux item to assign
3937 * @type_idx: pointer to store the resultant label index
3939 * When the same label is used already in the existing items, the number
3940 * suffix is appended to the label. This label index number is stored
3941 * to type_idx when non-NULL pointer is given.
3943 int snd_hda_add_imux_item(struct hda_codec *codec,
3944 struct hda_input_mux *imux, const char *label,
3945 int index, int *type_idx)
3947 int i, label_idx = 0;
3948 if (imux->num_items >= HDA_MAX_NUM_INPUTS) {
3949 codec_err(codec, "hda_codec: Too many imux items!\n");
3952 for (i = 0; i < imux->num_items; i++) {
3953 if (!strncmp(label, imux->items[i].label, strlen(label)))
3957 *type_idx = label_idx;
3959 snprintf(imux->items[imux->num_items].label,
3960 sizeof(imux->items[imux->num_items].label),
3961 "%s %d", label, label_idx);
3963 strscpy(imux->items[imux->num_items].label, label,
3964 sizeof(imux->items[imux->num_items].label));
3965 imux->items[imux->num_items].index = index;
3969 EXPORT_SYMBOL_GPL(snd_hda_add_imux_item);
3972 * snd_hda_bus_reset_codecs - Reset the bus
3973 * @bus: HD-audio bus
3975 void snd_hda_bus_reset_codecs(struct hda_bus *bus)
3977 struct hda_codec *codec;
3979 list_for_each_codec(codec, bus) {
3980 /* FIXME: maybe a better way needed for forced reset */
3981 if (current_work() != &codec->jackpoll_work.work)
3982 cancel_delayed_work_sync(&codec->jackpoll_work);
3984 if (hda_codec_is_power_on(codec)) {
3985 hda_call_codec_suspend(codec);
3986 hda_call_codec_resume(codec);
3993 * snd_print_pcm_bits - Print the supported PCM fmt bits to the string buffer
3994 * @pcm: PCM caps bits
3995 * @buf: the string buffer to write
3996 * @buflen: the max buffer length
3998 * used by hda_proc.c and hda_eld.c
4000 void snd_print_pcm_bits(int pcm, char *buf, int buflen)
4002 static const unsigned int bits[] = { 8, 16, 20, 24, 32 };
4005 for (i = 0, j = 0; i < ARRAY_SIZE(bits); i++)
4006 if (pcm & (AC_SUPPCM_BITS_8 << i))
4007 j += scnprintf(buf + j, buflen - j, " %d", bits[i]);
4009 buf[j] = '\0'; /* necessary when j == 0 */
4011 EXPORT_SYMBOL_GPL(snd_print_pcm_bits);
4013 MODULE_DESCRIPTION("HDA codec core");
4014 MODULE_LICENSE("GPL");