2 * Universal Interface for Intel High Definition Audio Codec
4 * Copyright (c) 2004 Takashi Iwai <tiwai@suse.de>
7 * This driver is free software; you can redistribute it and/or modify
8 * it under the terms of the GNU General Public License as published by
9 * the Free Software Foundation; either version 2 of the License, or
10 * (at your option) any later version.
12 * This driver is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 * GNU General Public License for more details.
17 * You should have received a copy of the GNU General Public License
18 * along with this program; if not, write to the Free Software
19 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
22 #include <linux/init.h>
23 #include <linux/delay.h>
24 #include <linux/slab.h>
25 #include <linux/mutex.h>
26 #include <linux/module.h>
28 #include <linux/pm_runtime.h>
29 #include <sound/core.h>
30 #include <sound/hda_codec.h>
31 #include <sound/asoundef.h>
32 #include <sound/tlv.h>
33 #include <sound/initval.h>
34 #include <sound/jack.h>
35 #include "hda_local.h"
38 #include <sound/hda_hwdep.h>
39 #include <sound/hda_component.h>
41 #define codec_in_pm(codec) snd_hdac_is_in_pm(&codec->core)
42 #define hda_codec_is_power_on(codec) snd_hdac_is_power_on(&codec->core)
43 #define codec_has_epss(codec) \
44 ((codec)->core.power_caps & AC_PWRST_EPSS)
45 #define codec_has_clkstop(codec) \
46 ((codec)->core.power_caps & AC_PWRST_CLKSTOP)
49 * Send and receive a verb - passed to exec_verb override for hdac_device
51 static int codec_exec_verb(struct hdac_device *dev, unsigned int cmd,
52 unsigned int flags, unsigned int *res)
54 struct hda_codec *codec = container_of(dev, struct hda_codec, core);
55 struct hda_bus *bus = codec->bus;
62 snd_hda_power_up_pm(codec);
63 mutex_lock(&bus->core.cmd_mutex);
64 if (flags & HDA_RW_NO_RESPONSE_FALLBACK)
65 bus->no_response_fallback = 1;
66 err = snd_hdac_bus_exec_verb_unlocked(&bus->core, codec->core.addr,
68 bus->no_response_fallback = 0;
69 mutex_unlock(&bus->core.cmd_mutex);
70 snd_hda_power_down_pm(codec);
71 if (!codec_in_pm(codec) && res && err == -EAGAIN) {
72 if (bus->response_reset) {
74 "resetting BUS due to fatal communication error\n");
75 snd_hda_bus_reset(bus);
79 /* clear reset-flag when the communication gets recovered */
80 if (!err || codec_in_pm(codec))
81 bus->response_reset = 0;
86 * snd_hda_sequence_write - sequence writes
87 * @codec: the HDA codec
88 * @seq: VERB array to send
90 * Send the commands sequentially from the given array.
91 * The array must be terminated with NID=0.
93 void snd_hda_sequence_write(struct hda_codec *codec, const struct hda_verb *seq)
95 for (; seq->nid; seq++)
96 snd_hda_codec_write(codec, seq->nid, 0, seq->verb, seq->param);
98 EXPORT_SYMBOL_GPL(snd_hda_sequence_write);
100 /* connection list element */
101 struct hda_conn_list {
102 struct list_head list;
108 /* look up the cached results */
109 static struct hda_conn_list *
110 lookup_conn_list(struct hda_codec *codec, hda_nid_t nid)
112 struct hda_conn_list *p;
113 list_for_each_entry(p, &codec->conn_list, list) {
120 static int add_conn_list(struct hda_codec *codec, hda_nid_t nid, int len,
121 const hda_nid_t *list)
123 struct hda_conn_list *p;
125 p = kmalloc(sizeof(*p) + len * sizeof(hda_nid_t), GFP_KERNEL);
130 memcpy(p->conns, list, len * sizeof(hda_nid_t));
131 list_add(&p->list, &codec->conn_list);
135 static void remove_conn_list(struct hda_codec *codec)
137 while (!list_empty(&codec->conn_list)) {
138 struct hda_conn_list *p;
139 p = list_first_entry(&codec->conn_list, typeof(*p), list);
145 /* read the connection and add to the cache */
146 static int read_and_add_raw_conns(struct hda_codec *codec, hda_nid_t nid)
149 hda_nid_t *result = list;
152 len = snd_hda_get_raw_connections(codec, nid, list, ARRAY_SIZE(list));
153 if (len == -ENOSPC) {
154 len = snd_hda_get_num_raw_conns(codec, nid);
155 result = kmalloc_array(len, sizeof(hda_nid_t), GFP_KERNEL);
158 len = snd_hda_get_raw_connections(codec, nid, result, len);
161 len = snd_hda_override_conn_list(codec, nid, len, result);
168 * snd_hda_get_conn_list - get connection list
169 * @codec: the HDA codec
171 * @listp: the pointer to store NID list
173 * Parses the connection list of the given widget and stores the pointer
174 * to the list of NIDs.
176 * Returns the number of connections, or a negative error code.
178 * Note that the returned pointer isn't protected against the list
179 * modification. If snd_hda_override_conn_list() might be called
180 * concurrently, protect with a mutex appropriately.
182 int snd_hda_get_conn_list(struct hda_codec *codec, hda_nid_t nid,
183 const hda_nid_t **listp)
189 const struct hda_conn_list *p;
191 /* if the connection-list is already cached, read it */
192 p = lookup_conn_list(codec, nid);
198 if (snd_BUG_ON(added))
201 err = read_and_add_raw_conns(codec, nid);
207 EXPORT_SYMBOL_GPL(snd_hda_get_conn_list);
210 * snd_hda_get_connections - copy connection list
211 * @codec: the HDA codec
213 * @conn_list: connection list array; when NULL, checks only the size
214 * @max_conns: max. number of connections to store
216 * Parses the connection list of the given widget and stores the list
219 * Returns the number of connections, or a negative error code.
221 int snd_hda_get_connections(struct hda_codec *codec, hda_nid_t nid,
222 hda_nid_t *conn_list, int max_conns)
224 const hda_nid_t *list;
225 int len = snd_hda_get_conn_list(codec, nid, &list);
227 if (len > 0 && conn_list) {
228 if (len > max_conns) {
229 codec_err(codec, "Too many connections %d for NID 0x%x\n",
233 memcpy(conn_list, list, len * sizeof(hda_nid_t));
238 EXPORT_SYMBOL_GPL(snd_hda_get_connections);
241 * snd_hda_override_conn_list - add/modify the connection-list to cache
242 * @codec: the HDA codec
244 * @len: number of connection list entries
245 * @list: the list of connection entries
247 * Add or modify the given connection-list to the cache. If the corresponding
248 * cache already exists, invalidate it and append a new one.
250 * Returns zero or a negative error code.
252 int snd_hda_override_conn_list(struct hda_codec *codec, hda_nid_t nid, int len,
253 const hda_nid_t *list)
255 struct hda_conn_list *p;
257 p = lookup_conn_list(codec, nid);
263 return add_conn_list(codec, nid, len, list);
265 EXPORT_SYMBOL_GPL(snd_hda_override_conn_list);
268 * snd_hda_get_conn_index - get the connection index of the given NID
269 * @codec: the HDA codec
270 * @mux: NID containing the list
271 * @nid: NID to select
272 * @recursive: 1 when searching NID recursively, otherwise 0
274 * Parses the connection list of the widget @mux and checks whether the
275 * widget @nid is present. If it is, return the connection index.
276 * Otherwise it returns -1.
278 int snd_hda_get_conn_index(struct hda_codec *codec, hda_nid_t mux,
279 hda_nid_t nid, int recursive)
281 const hda_nid_t *conn;
284 nums = snd_hda_get_conn_list(codec, mux, &conn);
285 for (i = 0; i < nums; i++)
290 if (recursive > 10) {
291 codec_dbg(codec, "too deep connection for 0x%x\n", nid);
295 for (i = 0; i < nums; i++) {
296 unsigned int type = get_wcaps_type(get_wcaps(codec, conn[i]));
297 if (type == AC_WID_PIN || type == AC_WID_AUD_OUT)
299 if (snd_hda_get_conn_index(codec, conn[i], nid, recursive) >= 0)
304 EXPORT_SYMBOL_GPL(snd_hda_get_conn_index);
307 * snd_hda_get_num_devices - get DEVLIST_LEN parameter of the given widget
308 * @codec: the HDA codec
309 * @nid: NID of the pin to parse
311 * Get the device entry number on the given widget. This is a feature of
312 * DP MST audio. Each pin can have several device entries in it.
314 unsigned int snd_hda_get_num_devices(struct hda_codec *codec, hda_nid_t nid)
316 unsigned int wcaps = get_wcaps(codec, nid);
319 if (!codec->dp_mst || !(wcaps & AC_WCAP_DIGITAL) ||
320 get_wcaps_type(wcaps) != AC_WID_PIN)
323 parm = snd_hdac_read_parm_uncached(&codec->core, nid, AC_PAR_DEVLIST_LEN);
326 return parm & AC_DEV_LIST_LEN_MASK;
328 EXPORT_SYMBOL_GPL(snd_hda_get_num_devices);
331 * snd_hda_get_devices - copy device list without cache
332 * @codec: the HDA codec
333 * @nid: NID of the pin to parse
334 * @dev_list: device list array
335 * @max_devices: max. number of devices to store
337 * Copy the device list. This info is dynamic and so not cached.
338 * Currently called only from hda_proc.c, so not exported.
340 int snd_hda_get_devices(struct hda_codec *codec, hda_nid_t nid,
341 u8 *dev_list, int max_devices)
344 int i, dev_len, devices;
346 parm = snd_hda_get_num_devices(codec, nid);
347 if (!parm) /* not multi-stream capable */
351 dev_len = dev_len < max_devices ? dev_len : max_devices;
354 while (devices < dev_len) {
355 if (snd_hdac_read(&codec->core, nid,
356 AC_VERB_GET_DEVICE_LIST, devices, &parm))
359 for (i = 0; i < 8; i++) {
360 dev_list[devices] = (u8)parm;
363 if (devices >= dev_len)
371 * snd_hda_get_dev_select - get device entry select on the pin
372 * @codec: the HDA codec
373 * @nid: NID of the pin to get device entry select
375 * Get the devcie entry select on the pin. Return the device entry
376 * id selected on the pin. Return 0 means the first device entry
377 * is selected or MST is not supported.
379 int snd_hda_get_dev_select(struct hda_codec *codec, hda_nid_t nid)
381 /* not support dp_mst will always return 0, using first dev_entry */
385 return snd_hda_codec_read(codec, nid, 0, AC_VERB_GET_DEVICE_SEL, 0);
387 EXPORT_SYMBOL_GPL(snd_hda_get_dev_select);
390 * snd_hda_set_dev_select - set device entry select on the pin
391 * @codec: the HDA codec
392 * @nid: NID of the pin to set device entry select
393 * @dev_id: device entry id to be set
395 * Set the device entry select on the pin nid.
397 int snd_hda_set_dev_select(struct hda_codec *codec, hda_nid_t nid, int dev_id)
399 int ret, num_devices;
401 /* not support dp_mst will always return 0, using first dev_entry */
405 /* AC_PAR_DEVLIST_LEN is 0 based. */
406 num_devices = snd_hda_get_num_devices(codec, nid) + 1;
407 /* If Device List Length is 0 (num_device = 1),
408 * the pin is not multi stream capable.
409 * Do nothing in this case.
411 if (num_devices == 1)
414 /* Behavior of setting index being equal to or greater than
415 * Device List Length is not predictable
417 if (num_devices <= dev_id)
420 ret = snd_hda_codec_write(codec, nid, 0,
421 AC_VERB_SET_DEVICE_SEL, dev_id);
425 EXPORT_SYMBOL_GPL(snd_hda_set_dev_select);
428 * read widget caps for each widget and store in cache
430 static int read_widget_caps(struct hda_codec *codec, hda_nid_t fg_node)
435 codec->wcaps = kmalloc_array(codec->core.num_nodes, 4, GFP_KERNEL);
438 nid = codec->core.start_nid;
439 for (i = 0; i < codec->core.num_nodes; i++, nid++)
440 codec->wcaps[i] = snd_hdac_read_parm_uncached(&codec->core,
441 nid, AC_PAR_AUDIO_WIDGET_CAP);
445 /* read all pin default configurations and save codec->init_pins */
446 static int read_pin_defaults(struct hda_codec *codec)
450 for_each_hda_codec_node(nid, codec) {
451 struct hda_pincfg *pin;
452 unsigned int wcaps = get_wcaps(codec, nid);
453 unsigned int wid_type = get_wcaps_type(wcaps);
454 if (wid_type != AC_WID_PIN)
456 pin = snd_array_new(&codec->init_pins);
460 pin->cfg = snd_hda_codec_read(codec, nid, 0,
461 AC_VERB_GET_CONFIG_DEFAULT, 0);
463 * all device entries are the same widget control so far
464 * fixme: if any codec is different, need fix here
466 pin->ctrl = snd_hda_codec_read(codec, nid, 0,
467 AC_VERB_GET_PIN_WIDGET_CONTROL,
473 /* look up the given pin config list and return the item matching with NID */
474 static struct hda_pincfg *look_up_pincfg(struct hda_codec *codec,
475 struct snd_array *array,
478 struct hda_pincfg *pin;
481 snd_array_for_each(array, i, pin) {
488 /* set the current pin config value for the given NID.
489 * the value is cached, and read via snd_hda_codec_get_pincfg()
491 int snd_hda_add_pincfg(struct hda_codec *codec, struct snd_array *list,
492 hda_nid_t nid, unsigned int cfg)
494 struct hda_pincfg *pin;
496 /* the check below may be invalid when pins are added by a fixup
497 * dynamically (e.g. via snd_hda_codec_update_widgets()), so disabled
501 if (get_wcaps_type(get_wcaps(codec, nid)) != AC_WID_PIN)
505 pin = look_up_pincfg(codec, list, nid);
507 pin = snd_array_new(list);
517 * snd_hda_codec_set_pincfg - Override a pin default configuration
518 * @codec: the HDA codec
519 * @nid: NID to set the pin config
520 * @cfg: the pin default config value
522 * Override a pin default configuration value in the cache.
523 * This value can be read by snd_hda_codec_get_pincfg() in a higher
524 * priority than the real hardware value.
526 int snd_hda_codec_set_pincfg(struct hda_codec *codec,
527 hda_nid_t nid, unsigned int cfg)
529 return snd_hda_add_pincfg(codec, &codec->driver_pins, nid, cfg);
531 EXPORT_SYMBOL_GPL(snd_hda_codec_set_pincfg);
534 * snd_hda_codec_get_pincfg - Obtain a pin-default configuration
535 * @codec: the HDA codec
536 * @nid: NID to get the pin config
538 * Get the current pin config value of the given pin NID.
539 * If the pincfg value is cached or overridden via sysfs or driver,
540 * returns the cached value.
542 unsigned int snd_hda_codec_get_pincfg(struct hda_codec *codec, hda_nid_t nid)
544 struct hda_pincfg *pin;
546 #ifdef CONFIG_SND_HDA_RECONFIG
548 unsigned int cfg = 0;
549 mutex_lock(&codec->user_mutex);
550 pin = look_up_pincfg(codec, &codec->user_pins, nid);
553 mutex_unlock(&codec->user_mutex);
558 pin = look_up_pincfg(codec, &codec->driver_pins, nid);
561 pin = look_up_pincfg(codec, &codec->init_pins, nid);
566 EXPORT_SYMBOL_GPL(snd_hda_codec_get_pincfg);
569 * snd_hda_codec_set_pin_target - remember the current pinctl target value
570 * @codec: the HDA codec
572 * @val: assigned pinctl value
574 * This function stores the given value to a pinctl target value in the
575 * pincfg table. This isn't always as same as the actually written value
576 * but can be referred at any time via snd_hda_codec_get_pin_target().
578 int snd_hda_codec_set_pin_target(struct hda_codec *codec, hda_nid_t nid,
581 struct hda_pincfg *pin;
583 pin = look_up_pincfg(codec, &codec->init_pins, nid);
589 EXPORT_SYMBOL_GPL(snd_hda_codec_set_pin_target);
592 * snd_hda_codec_get_pin_target - return the current pinctl target value
593 * @codec: the HDA codec
596 int snd_hda_codec_get_pin_target(struct hda_codec *codec, hda_nid_t nid)
598 struct hda_pincfg *pin;
600 pin = look_up_pincfg(codec, &codec->init_pins, nid);
605 EXPORT_SYMBOL_GPL(snd_hda_codec_get_pin_target);
608 * snd_hda_shutup_pins - Shut up all pins
609 * @codec: the HDA codec
611 * Clear all pin controls to shup up before suspend for avoiding click noise.
612 * The controls aren't cached so that they can be resumed properly.
614 void snd_hda_shutup_pins(struct hda_codec *codec)
616 const struct hda_pincfg *pin;
619 /* don't shut up pins when unloading the driver; otherwise it breaks
620 * the default pin setup at the next load of the driver
622 if (codec->bus->shutdown)
624 snd_array_for_each(&codec->init_pins, i, pin) {
625 /* use read here for syncing after issuing each verb */
626 snd_hda_codec_read(codec, pin->nid, 0,
627 AC_VERB_SET_PIN_WIDGET_CONTROL, 0);
629 codec->pins_shutup = 1;
631 EXPORT_SYMBOL_GPL(snd_hda_shutup_pins);
634 /* Restore the pin controls cleared previously via snd_hda_shutup_pins() */
635 static void restore_shutup_pins(struct hda_codec *codec)
637 const struct hda_pincfg *pin;
640 if (!codec->pins_shutup)
642 if (codec->bus->shutdown)
644 snd_array_for_each(&codec->init_pins, i, pin) {
645 snd_hda_codec_write(codec, pin->nid, 0,
646 AC_VERB_SET_PIN_WIDGET_CONTROL,
649 codec->pins_shutup = 0;
653 static void hda_jackpoll_work(struct work_struct *work)
655 struct hda_codec *codec =
656 container_of(work, struct hda_codec, jackpoll_work.work);
658 snd_hda_jack_set_dirty_all(codec);
659 snd_hda_jack_poll_all(codec);
661 if (!codec->jackpoll_interval)
664 schedule_delayed_work(&codec->jackpoll_work,
665 codec->jackpoll_interval);
668 /* release all pincfg lists */
669 static void free_init_pincfgs(struct hda_codec *codec)
671 snd_array_free(&codec->driver_pins);
672 #ifdef CONFIG_SND_HDA_RECONFIG
673 snd_array_free(&codec->user_pins);
675 snd_array_free(&codec->init_pins);
679 * audio-converter setup caches
681 struct hda_cvt_setup {
686 unsigned char active; /* cvt is currently used */
687 unsigned char dirty; /* setups should be cleared */
690 /* get or create a cache entry for the given audio converter NID */
691 static struct hda_cvt_setup *
692 get_hda_cvt_setup(struct hda_codec *codec, hda_nid_t nid)
694 struct hda_cvt_setup *p;
697 snd_array_for_each(&codec->cvt_setups, i, p) {
701 p = snd_array_new(&codec->cvt_setups);
710 static void release_pcm(struct kref *kref)
712 struct hda_pcm *pcm = container_of(kref, struct hda_pcm, kref);
715 snd_device_free(pcm->codec->card, pcm->pcm);
716 clear_bit(pcm->device, pcm->codec->bus->pcm_dev_bits);
721 void snd_hda_codec_pcm_put(struct hda_pcm *pcm)
723 kref_put(&pcm->kref, release_pcm);
725 EXPORT_SYMBOL_GPL(snd_hda_codec_pcm_put);
727 struct hda_pcm *snd_hda_codec_pcm_new(struct hda_codec *codec,
728 const char *fmt, ...)
733 pcm = kzalloc(sizeof(*pcm), GFP_KERNEL);
738 kref_init(&pcm->kref);
740 pcm->name = kvasprintf(GFP_KERNEL, fmt, args);
747 list_add_tail(&pcm->list, &codec->pcm_list_head);
750 EXPORT_SYMBOL_GPL(snd_hda_codec_pcm_new);
755 static void codec_release_pcms(struct hda_codec *codec)
757 struct hda_pcm *pcm, *n;
759 list_for_each_entry_safe(pcm, n, &codec->pcm_list_head, list) {
760 list_del_init(&pcm->list);
762 snd_device_disconnect(codec->card, pcm->pcm);
763 snd_hda_codec_pcm_put(pcm);
767 void snd_hda_codec_cleanup_for_unbind(struct hda_codec *codec)
769 if (codec->registered) {
770 /* pm_runtime_put() is called in snd_hdac_device_exit() */
771 pm_runtime_get_noresume(hda_codec_dev(codec));
772 pm_runtime_disable(hda_codec_dev(codec));
773 codec->registered = 0;
776 cancel_delayed_work_sync(&codec->jackpoll_work);
777 if (!codec->in_freeing)
778 snd_hda_ctls_clear(codec);
779 codec_release_pcms(codec);
780 snd_hda_detach_beep_device(codec);
781 memset(&codec->patch_ops, 0, sizeof(codec->patch_ops));
782 snd_hda_jack_tbl_clear(codec);
783 codec->proc_widget_hook = NULL;
786 /* free only driver_pins so that init_pins + user_pins are restored */
787 snd_array_free(&codec->driver_pins);
788 snd_array_free(&codec->cvt_setups);
789 snd_array_free(&codec->spdif_out);
790 snd_array_free(&codec->verbs);
791 codec->preset = NULL;
792 codec->slave_dig_outs = NULL;
793 codec->spdif_status_reset = 0;
794 snd_array_free(&codec->mixers);
795 snd_array_free(&codec->nids);
796 remove_conn_list(codec);
797 snd_hdac_regmap_exit(&codec->core);
800 static unsigned int hda_set_power_state(struct hda_codec *codec,
801 unsigned int power_state);
803 /* enable/disable display power per codec */
804 static void codec_display_power(struct hda_codec *codec, bool enable)
806 if (codec->display_power_control)
807 snd_hdac_display_power(&codec->bus->core, codec->addr, enable);
810 /* also called from hda_bind.c */
811 void snd_hda_codec_register(struct hda_codec *codec)
813 if (codec->registered)
815 if (device_is_registered(hda_codec_dev(codec))) {
816 codec_display_power(codec, true);
817 pm_runtime_enable(hda_codec_dev(codec));
818 /* it was powered up in snd_hda_codec_new(), now all done */
819 snd_hda_power_down(codec);
820 codec->registered = 1;
824 static int snd_hda_codec_dev_register(struct snd_device *device)
826 snd_hda_codec_register(device->device_data);
830 static int snd_hda_codec_dev_free(struct snd_device *device)
832 struct hda_codec *codec = device->device_data;
834 codec->in_freeing = 1;
835 snd_hdac_device_unregister(&codec->core);
836 codec_display_power(codec, false);
837 put_device(hda_codec_dev(codec));
841 static void snd_hda_codec_dev_release(struct device *dev)
843 struct hda_codec *codec = dev_to_hda_codec(dev);
845 free_init_pincfgs(codec);
846 snd_hdac_device_exit(&codec->core);
847 snd_hda_sysfs_clear(codec);
848 kfree(codec->modelname);
853 #define DEV_NAME_LEN 31
855 static int snd_hda_codec_device_init(struct hda_bus *bus, struct snd_card *card,
856 unsigned int codec_addr, struct hda_codec **codecp)
858 char name[DEV_NAME_LEN];
859 struct hda_codec *codec;
862 dev_dbg(card->dev, "%s: entry\n", __func__);
864 if (snd_BUG_ON(!bus))
866 if (snd_BUG_ON(codec_addr > HDA_MAX_CODEC_ADDRESS))
869 codec = kzalloc(sizeof(*codec), GFP_KERNEL);
873 sprintf(name, "hdaudioC%dD%d", card->number, codec_addr);
874 err = snd_hdac_device_init(&codec->core, &bus->core, name, codec_addr);
880 codec->core.type = HDA_DEV_LEGACY;
887 * snd_hda_codec_new - create a HDA codec
888 * @bus: the bus to assign
889 * @codec_addr: the codec address
890 * @codecp: the pointer to store the generated codec
892 * Returns 0 if successful, or a negative error code.
894 int snd_hda_codec_new(struct hda_bus *bus, struct snd_card *card,
895 unsigned int codec_addr, struct hda_codec **codecp)
899 ret = snd_hda_codec_device_init(bus, card, codec_addr, codecp);
903 return snd_hda_codec_device_new(bus, card, codec_addr, *codecp);
905 EXPORT_SYMBOL_GPL(snd_hda_codec_new);
907 int snd_hda_codec_device_new(struct hda_bus *bus, struct snd_card *card,
908 unsigned int codec_addr, struct hda_codec *codec)
913 static struct snd_device_ops dev_ops = {
914 .dev_register = snd_hda_codec_dev_register,
915 .dev_free = snd_hda_codec_dev_free,
918 dev_dbg(card->dev, "%s: entry\n", __func__);
920 if (snd_BUG_ON(!bus))
922 if (snd_BUG_ON(codec_addr > HDA_MAX_CODEC_ADDRESS))
925 codec->core.dev.release = snd_hda_codec_dev_release;
926 codec->core.exec_verb = codec_exec_verb;
930 codec->addr = codec_addr;
931 mutex_init(&codec->spdif_mutex);
932 mutex_init(&codec->control_mutex);
933 snd_array_init(&codec->mixers, sizeof(struct hda_nid_item), 32);
934 snd_array_init(&codec->nids, sizeof(struct hda_nid_item), 32);
935 snd_array_init(&codec->init_pins, sizeof(struct hda_pincfg), 16);
936 snd_array_init(&codec->driver_pins, sizeof(struct hda_pincfg), 16);
937 snd_array_init(&codec->cvt_setups, sizeof(struct hda_cvt_setup), 8);
938 snd_array_init(&codec->spdif_out, sizeof(struct hda_spdif_out), 16);
939 snd_array_init(&codec->jacktbl, sizeof(struct hda_jack_tbl), 16);
940 snd_array_init(&codec->verbs, sizeof(struct hda_verb *), 8);
941 INIT_LIST_HEAD(&codec->conn_list);
942 INIT_LIST_HEAD(&codec->pcm_list_head);
944 INIT_DELAYED_WORK(&codec->jackpoll_work, hda_jackpoll_work);
945 codec->depop_delay = -1;
946 codec->fixup_id = HDA_FIXUP_ID_NOT_SET;
949 codec->power_jiffies = jiffies;
952 snd_hda_sysfs_init(codec);
954 if (codec->bus->modelname) {
955 codec->modelname = kstrdup(codec->bus->modelname, GFP_KERNEL);
956 if (!codec->modelname) {
962 fg = codec->core.afg ? codec->core.afg : codec->core.mfg;
963 err = read_widget_caps(codec, fg);
966 err = read_pin_defaults(codec);
970 /* power-up all before initialization */
971 hda_set_power_state(codec, AC_PWRST_D0);
973 snd_hda_codec_proc_new(codec);
975 snd_hda_create_hwdep(codec);
977 sprintf(component, "HDA:%08x,%08x,%08x", codec->core.vendor_id,
978 codec->core.subsystem_id, codec->core.revision_id);
979 snd_component_add(card, component);
981 err = snd_device_new(card, SNDRV_DEV_CODEC, codec, &dev_ops);
988 put_device(hda_codec_dev(codec));
991 EXPORT_SYMBOL_GPL(snd_hda_codec_device_new);
994 * snd_hda_codec_update_widgets - Refresh widget caps and pin defaults
995 * @codec: the HDA codec
997 * Forcibly refresh the all widget caps and the init pin configurations of
1000 int snd_hda_codec_update_widgets(struct hda_codec *codec)
1005 err = snd_hdac_refresh_widgets(&codec->core, true);
1009 /* Assume the function group node does not change,
1010 * only the widget nodes may change.
1012 kfree(codec->wcaps);
1013 fg = codec->core.afg ? codec->core.afg : codec->core.mfg;
1014 err = read_widget_caps(codec, fg);
1018 snd_array_free(&codec->init_pins);
1019 err = read_pin_defaults(codec);
1023 EXPORT_SYMBOL_GPL(snd_hda_codec_update_widgets);
1025 /* update the stream-id if changed */
1026 static void update_pcm_stream_id(struct hda_codec *codec,
1027 struct hda_cvt_setup *p, hda_nid_t nid,
1028 u32 stream_tag, int channel_id)
1030 unsigned int oldval, newval;
1032 if (p->stream_tag != stream_tag || p->channel_id != channel_id) {
1033 oldval = snd_hda_codec_read(codec, nid, 0, AC_VERB_GET_CONV, 0);
1034 newval = (stream_tag << 4) | channel_id;
1035 if (oldval != newval)
1036 snd_hda_codec_write(codec, nid, 0,
1037 AC_VERB_SET_CHANNEL_STREAMID,
1039 p->stream_tag = stream_tag;
1040 p->channel_id = channel_id;
1044 /* update the format-id if changed */
1045 static void update_pcm_format(struct hda_codec *codec, struct hda_cvt_setup *p,
1046 hda_nid_t nid, int format)
1048 unsigned int oldval;
1050 if (p->format_id != format) {
1051 oldval = snd_hda_codec_read(codec, nid, 0,
1052 AC_VERB_GET_STREAM_FORMAT, 0);
1053 if (oldval != format) {
1055 snd_hda_codec_write(codec, nid, 0,
1056 AC_VERB_SET_STREAM_FORMAT,
1059 p->format_id = format;
1064 * snd_hda_codec_setup_stream - set up the codec for streaming
1065 * @codec: the CODEC to set up
1066 * @nid: the NID to set up
1067 * @stream_tag: stream tag to pass, it's between 0x1 and 0xf.
1068 * @channel_id: channel id to pass, zero based.
1069 * @format: stream format.
1071 void snd_hda_codec_setup_stream(struct hda_codec *codec, hda_nid_t nid,
1073 int channel_id, int format)
1075 struct hda_codec *c;
1076 struct hda_cvt_setup *p;
1084 "hda_codec_setup_stream: NID=0x%x, stream=0x%x, channel=%d, format=0x%x\n",
1085 nid, stream_tag, channel_id, format);
1086 p = get_hda_cvt_setup(codec, nid);
1090 if (codec->patch_ops.stream_pm)
1091 codec->patch_ops.stream_pm(codec, nid, true);
1092 if (codec->pcm_format_first)
1093 update_pcm_format(codec, p, nid, format);
1094 update_pcm_stream_id(codec, p, nid, stream_tag, channel_id);
1095 if (!codec->pcm_format_first)
1096 update_pcm_format(codec, p, nid, format);
1101 /* make other inactive cvts with the same stream-tag dirty */
1102 type = get_wcaps_type(get_wcaps(codec, nid));
1103 list_for_each_codec(c, codec->bus) {
1104 snd_array_for_each(&c->cvt_setups, i, p) {
1105 if (!p->active && p->stream_tag == stream_tag &&
1106 get_wcaps_type(get_wcaps(c, p->nid)) == type)
1111 EXPORT_SYMBOL_GPL(snd_hda_codec_setup_stream);
1113 static void really_cleanup_stream(struct hda_codec *codec,
1114 struct hda_cvt_setup *q);
1117 * __snd_hda_codec_cleanup_stream - clean up the codec for closing
1118 * @codec: the CODEC to clean up
1119 * @nid: the NID to clean up
1120 * @do_now: really clean up the stream instead of clearing the active flag
1122 void __snd_hda_codec_cleanup_stream(struct hda_codec *codec, hda_nid_t nid,
1125 struct hda_cvt_setup *p;
1130 if (codec->no_sticky_stream)
1133 codec_dbg(codec, "hda_codec_cleanup_stream: NID=0x%x\n", nid);
1134 p = get_hda_cvt_setup(codec, nid);
1136 /* here we just clear the active flag when do_now isn't set;
1137 * actual clean-ups will be done later in
1138 * purify_inactive_streams() called from snd_hda_codec_prpapre()
1141 really_cleanup_stream(codec, p);
1146 EXPORT_SYMBOL_GPL(__snd_hda_codec_cleanup_stream);
1148 static void really_cleanup_stream(struct hda_codec *codec,
1149 struct hda_cvt_setup *q)
1151 hda_nid_t nid = q->nid;
1152 if (q->stream_tag || q->channel_id)
1153 snd_hda_codec_write(codec, nid, 0, AC_VERB_SET_CHANNEL_STREAMID, 0);
1155 snd_hda_codec_write(codec, nid, 0, AC_VERB_SET_STREAM_FORMAT, 0
1157 memset(q, 0, sizeof(*q));
1159 if (codec->patch_ops.stream_pm)
1160 codec->patch_ops.stream_pm(codec, nid, false);
1163 /* clean up the all conflicting obsolete streams */
1164 static void purify_inactive_streams(struct hda_codec *codec)
1166 struct hda_codec *c;
1167 struct hda_cvt_setup *p;
1170 list_for_each_codec(c, codec->bus) {
1171 snd_array_for_each(&c->cvt_setups, i, p) {
1173 really_cleanup_stream(c, p);
1179 /* clean up all streams; called from suspend */
1180 static void hda_cleanup_all_streams(struct hda_codec *codec)
1182 struct hda_cvt_setup *p;
1185 snd_array_for_each(&codec->cvt_setups, i, p) {
1187 really_cleanup_stream(codec, p);
1193 * amp access functions
1197 * query_amp_caps - query AMP capabilities
1198 * @codec: the HD-auio codec
1199 * @nid: the NID to query
1200 * @direction: either #HDA_INPUT or #HDA_OUTPUT
1202 * Query AMP capabilities for the given widget and direction.
1203 * Returns the obtained capability bits.
1205 * When cap bits have been already read, this doesn't read again but
1206 * returns the cached value.
1208 u32 query_amp_caps(struct hda_codec *codec, hda_nid_t nid, int direction)
1210 if (!(get_wcaps(codec, nid) & AC_WCAP_AMP_OVRD))
1211 nid = codec->core.afg;
1212 return snd_hda_param_read(codec, nid,
1213 direction == HDA_OUTPUT ?
1214 AC_PAR_AMP_OUT_CAP : AC_PAR_AMP_IN_CAP);
1216 EXPORT_SYMBOL_GPL(query_amp_caps);
1219 * snd_hda_check_amp_caps - query AMP capabilities
1220 * @codec: the HD-audio codec
1221 * @nid: the NID to query
1222 * @dir: either #HDA_INPUT or #HDA_OUTPUT
1223 * @bits: bit mask to check the result
1225 * Check whether the widget has the given amp capability for the direction.
1227 bool snd_hda_check_amp_caps(struct hda_codec *codec, hda_nid_t nid,
1228 int dir, unsigned int bits)
1232 if (get_wcaps(codec, nid) & (1 << (dir + 1)))
1233 if (query_amp_caps(codec, nid, dir) & bits)
1237 EXPORT_SYMBOL_GPL(snd_hda_check_amp_caps);
1240 * snd_hda_override_amp_caps - Override the AMP capabilities
1241 * @codec: the CODEC to clean up
1242 * @nid: the NID to clean up
1243 * @dir: either #HDA_INPUT or #HDA_OUTPUT
1244 * @caps: the capability bits to set
1246 * Override the cached AMP caps bits value by the given one.
1247 * This function is useful if the driver needs to adjust the AMP ranges,
1248 * e.g. limit to 0dB, etc.
1250 * Returns zero if successful or a negative error code.
1252 int snd_hda_override_amp_caps(struct hda_codec *codec, hda_nid_t nid, int dir,
1257 snd_hda_override_wcaps(codec, nid,
1258 get_wcaps(codec, nid) | AC_WCAP_AMP_OVRD);
1259 parm = dir == HDA_OUTPUT ? AC_PAR_AMP_OUT_CAP : AC_PAR_AMP_IN_CAP;
1260 return snd_hdac_override_parm(&codec->core, nid, parm, caps);
1262 EXPORT_SYMBOL_GPL(snd_hda_override_amp_caps);
1265 * snd_hda_codec_amp_update - update the AMP mono value
1266 * @codec: HD-audio codec
1267 * @nid: NID to read the AMP value
1268 * @ch: channel to update (0 or 1)
1269 * @dir: #HDA_INPUT or #HDA_OUTPUT
1270 * @idx: the index value (only for input direction)
1271 * @mask: bit mask to set
1272 * @val: the bits value to set
1274 * Update the AMP values for the given channel, direction and index.
1276 int snd_hda_codec_amp_update(struct hda_codec *codec, hda_nid_t nid,
1277 int ch, int dir, int idx, int mask, int val)
1279 unsigned int cmd = snd_hdac_regmap_encode_amp(nid, ch, dir, idx);
1281 /* enable fake mute if no h/w mute but min=mute */
1282 if ((query_amp_caps(codec, nid, dir) &
1283 (AC_AMPCAP_MUTE | AC_AMPCAP_MIN_MUTE)) == AC_AMPCAP_MIN_MUTE)
1284 cmd |= AC_AMP_FAKE_MUTE;
1285 return snd_hdac_regmap_update_raw(&codec->core, cmd, mask, val);
1287 EXPORT_SYMBOL_GPL(snd_hda_codec_amp_update);
1290 * snd_hda_codec_amp_stereo - update the AMP stereo values
1291 * @codec: HD-audio codec
1292 * @nid: NID to read the AMP value
1293 * @direction: #HDA_INPUT or #HDA_OUTPUT
1294 * @idx: the index value (only for input direction)
1295 * @mask: bit mask to set
1296 * @val: the bits value to set
1298 * Update the AMP values like snd_hda_codec_amp_update(), but for a
1299 * stereo widget with the same mask and value.
1301 int snd_hda_codec_amp_stereo(struct hda_codec *codec, hda_nid_t nid,
1302 int direction, int idx, int mask, int val)
1306 if (snd_BUG_ON(mask & ~0xff))
1308 for (ch = 0; ch < 2; ch++)
1309 ret |= snd_hda_codec_amp_update(codec, nid, ch, direction,
1313 EXPORT_SYMBOL_GPL(snd_hda_codec_amp_stereo);
1316 * snd_hda_codec_amp_init - initialize the AMP value
1317 * @codec: the HDA codec
1318 * @nid: NID to read the AMP value
1319 * @ch: channel (left=0 or right=1)
1320 * @dir: #HDA_INPUT or #HDA_OUTPUT
1321 * @idx: the index value (only for input direction)
1322 * @mask: bit mask to set
1323 * @val: the bits value to set
1325 * Works like snd_hda_codec_amp_update() but it writes the value only at
1326 * the first access. If the amp was already initialized / updated beforehand,
1327 * this does nothing.
1329 int snd_hda_codec_amp_init(struct hda_codec *codec, hda_nid_t nid, int ch,
1330 int dir, int idx, int mask, int val)
1334 if (!codec->core.regmap)
1336 regcache_cache_only(codec->core.regmap, true);
1337 orig = snd_hda_codec_amp_read(codec, nid, ch, dir, idx);
1338 regcache_cache_only(codec->core.regmap, false);
1341 return snd_hda_codec_amp_update(codec, nid, ch, dir, idx, mask, val);
1343 EXPORT_SYMBOL_GPL(snd_hda_codec_amp_init);
1346 * snd_hda_codec_amp_init_stereo - initialize the stereo AMP value
1347 * @codec: the HDA codec
1348 * @nid: NID to read the AMP value
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 * Call snd_hda_codec_amp_init() for both stereo channels.
1356 int snd_hda_codec_amp_init_stereo(struct hda_codec *codec, hda_nid_t nid,
1357 int dir, int idx, int mask, int val)
1361 if (snd_BUG_ON(mask & ~0xff))
1363 for (ch = 0; ch < 2; ch++)
1364 ret |= snd_hda_codec_amp_init(codec, nid, ch, dir,
1368 EXPORT_SYMBOL_GPL(snd_hda_codec_amp_init_stereo);
1370 static u32 get_amp_max_value(struct hda_codec *codec, hda_nid_t nid, int dir,
1373 u32 caps = query_amp_caps(codec, nid, dir);
1375 caps = (caps & AC_AMPCAP_NUM_STEPS) >> AC_AMPCAP_NUM_STEPS_SHIFT;
1382 * snd_hda_mixer_amp_volume_info - Info callback for a standard AMP mixer
1383 * @kcontrol: referred ctl element
1384 * @uinfo: pointer to get/store the data
1386 * The control element is supposed to have the private_value field
1387 * set up via HDA_COMPOSE_AMP_VAL*() or related macros.
1389 int snd_hda_mixer_amp_volume_info(struct snd_kcontrol *kcontrol,
1390 struct snd_ctl_elem_info *uinfo)
1392 struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
1393 u16 nid = get_amp_nid(kcontrol);
1394 u8 chs = get_amp_channels(kcontrol);
1395 int dir = get_amp_direction(kcontrol);
1396 unsigned int ofs = get_amp_offset(kcontrol);
1398 uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
1399 uinfo->count = chs == 3 ? 2 : 1;
1400 uinfo->value.integer.min = 0;
1401 uinfo->value.integer.max = get_amp_max_value(codec, nid, dir, ofs);
1402 if (!uinfo->value.integer.max) {
1404 "num_steps = 0 for NID=0x%x (ctl = %s)\n",
1405 nid, kcontrol->id.name);
1410 EXPORT_SYMBOL_GPL(snd_hda_mixer_amp_volume_info);
1413 static inline unsigned int
1414 read_amp_value(struct hda_codec *codec, hda_nid_t nid,
1415 int ch, int dir, int idx, unsigned int ofs)
1418 val = snd_hda_codec_amp_read(codec, nid, ch, dir, idx);
1419 val &= HDA_AMP_VOLMASK;
1428 update_amp_value(struct hda_codec *codec, hda_nid_t nid,
1429 int ch, int dir, int idx, unsigned int ofs,
1432 unsigned int maxval;
1436 /* ofs = 0: raw max value */
1437 maxval = get_amp_max_value(codec, nid, dir, 0);
1440 return snd_hda_codec_amp_update(codec, nid, ch, dir, idx,
1441 HDA_AMP_VOLMASK, val);
1445 * snd_hda_mixer_amp_volume_get - Get callback for a standard AMP mixer volume
1446 * @kcontrol: ctl element
1447 * @ucontrol: pointer to get/store the data
1449 * The control element is supposed to have the private_value field
1450 * set up via HDA_COMPOSE_AMP_VAL*() or related macros.
1452 int snd_hda_mixer_amp_volume_get(struct snd_kcontrol *kcontrol,
1453 struct snd_ctl_elem_value *ucontrol)
1455 struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
1456 hda_nid_t nid = get_amp_nid(kcontrol);
1457 int chs = get_amp_channels(kcontrol);
1458 int dir = get_amp_direction(kcontrol);
1459 int idx = get_amp_index(kcontrol);
1460 unsigned int ofs = get_amp_offset(kcontrol);
1461 long *valp = ucontrol->value.integer.value;
1464 *valp++ = read_amp_value(codec, nid, 0, dir, idx, ofs);
1466 *valp = read_amp_value(codec, nid, 1, dir, idx, ofs);
1469 EXPORT_SYMBOL_GPL(snd_hda_mixer_amp_volume_get);
1472 * snd_hda_mixer_amp_volume_put - Put callback for a standard AMP mixer volume
1473 * @kcontrol: ctl element
1474 * @ucontrol: pointer to get/store the data
1476 * The control element is supposed to have the private_value field
1477 * set up via HDA_COMPOSE_AMP_VAL*() or related macros.
1479 int snd_hda_mixer_amp_volume_put(struct snd_kcontrol *kcontrol,
1480 struct snd_ctl_elem_value *ucontrol)
1482 struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
1483 hda_nid_t nid = get_amp_nid(kcontrol);
1484 int chs = get_amp_channels(kcontrol);
1485 int dir = get_amp_direction(kcontrol);
1486 int idx = get_amp_index(kcontrol);
1487 unsigned int ofs = get_amp_offset(kcontrol);
1488 long *valp = ucontrol->value.integer.value;
1492 change = update_amp_value(codec, nid, 0, dir, idx, ofs, *valp);
1496 change |= update_amp_value(codec, nid, 1, dir, idx, ofs, *valp);
1499 EXPORT_SYMBOL_GPL(snd_hda_mixer_amp_volume_put);
1501 /* inquiry the amp caps and convert to TLV */
1502 static void get_ctl_amp_tlv(struct snd_kcontrol *kcontrol, unsigned int *tlv)
1504 struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
1505 hda_nid_t nid = get_amp_nid(kcontrol);
1506 int dir = get_amp_direction(kcontrol);
1507 unsigned int ofs = get_amp_offset(kcontrol);
1508 bool min_mute = get_amp_min_mute(kcontrol);
1509 u32 caps, val1, val2;
1511 caps = query_amp_caps(codec, nid, dir);
1512 val2 = (caps & AC_AMPCAP_STEP_SIZE) >> AC_AMPCAP_STEP_SIZE_SHIFT;
1513 val2 = (val2 + 1) * 25;
1514 val1 = -((caps & AC_AMPCAP_OFFSET) >> AC_AMPCAP_OFFSET_SHIFT);
1516 val1 = ((int)val1) * ((int)val2);
1517 if (min_mute || (caps & AC_AMPCAP_MIN_MUTE))
1518 val2 |= TLV_DB_SCALE_MUTE;
1519 tlv[SNDRV_CTL_TLVO_TYPE] = SNDRV_CTL_TLVT_DB_SCALE;
1520 tlv[SNDRV_CTL_TLVO_LEN] = 2 * sizeof(unsigned int);
1521 tlv[SNDRV_CTL_TLVO_DB_SCALE_MIN] = val1;
1522 tlv[SNDRV_CTL_TLVO_DB_SCALE_MUTE_AND_STEP] = val2;
1526 * snd_hda_mixer_amp_tlv - TLV callback for a standard AMP mixer volume
1527 * @kcontrol: ctl element
1528 * @op_flag: operation flag
1529 * @size: byte size of input TLV
1532 * The control element is supposed to have the private_value field
1533 * set up via HDA_COMPOSE_AMP_VAL*() or related macros.
1535 int snd_hda_mixer_amp_tlv(struct snd_kcontrol *kcontrol, int op_flag,
1536 unsigned int size, unsigned int __user *_tlv)
1538 unsigned int tlv[4];
1540 if (size < 4 * sizeof(unsigned int))
1542 get_ctl_amp_tlv(kcontrol, tlv);
1543 if (copy_to_user(_tlv, tlv, sizeof(tlv)))
1547 EXPORT_SYMBOL_GPL(snd_hda_mixer_amp_tlv);
1550 * snd_hda_set_vmaster_tlv - Set TLV for a virtual master control
1551 * @codec: HD-audio codec
1552 * @nid: NID of a reference widget
1553 * @dir: #HDA_INPUT or #HDA_OUTPUT
1554 * @tlv: TLV data to be stored, at least 4 elements
1556 * Set (static) TLV data for a virtual master volume using the AMP caps
1557 * obtained from the reference NID.
1558 * The volume range is recalculated as if the max volume is 0dB.
1560 void snd_hda_set_vmaster_tlv(struct hda_codec *codec, hda_nid_t nid, int dir,
1566 caps = query_amp_caps(codec, nid, dir);
1567 nums = (caps & AC_AMPCAP_NUM_STEPS) >> AC_AMPCAP_NUM_STEPS_SHIFT;
1568 step = (caps & AC_AMPCAP_STEP_SIZE) >> AC_AMPCAP_STEP_SIZE_SHIFT;
1569 step = (step + 1) * 25;
1570 tlv[SNDRV_CTL_TLVO_TYPE] = SNDRV_CTL_TLVT_DB_SCALE;
1571 tlv[SNDRV_CTL_TLVO_LEN] = 2 * sizeof(unsigned int);
1572 tlv[SNDRV_CTL_TLVO_DB_SCALE_MIN] = -nums * step;
1573 tlv[SNDRV_CTL_TLVO_DB_SCALE_MUTE_AND_STEP] = step;
1575 EXPORT_SYMBOL_GPL(snd_hda_set_vmaster_tlv);
1577 /* find a mixer control element with the given name */
1578 static struct snd_kcontrol *
1579 find_mixer_ctl(struct hda_codec *codec, const char *name, int dev, int idx)
1581 struct snd_ctl_elem_id id;
1582 memset(&id, 0, sizeof(id));
1583 id.iface = SNDRV_CTL_ELEM_IFACE_MIXER;
1586 if (snd_BUG_ON(strlen(name) >= sizeof(id.name)))
1588 strcpy(id.name, name);
1589 return snd_ctl_find_id(codec->card, &id);
1593 * snd_hda_find_mixer_ctl - Find a mixer control element with the given name
1594 * @codec: HD-audio codec
1595 * @name: ctl id name string
1597 * Get the control element with the given id string and IFACE_MIXER.
1599 struct snd_kcontrol *snd_hda_find_mixer_ctl(struct hda_codec *codec,
1602 return find_mixer_ctl(codec, name, 0, 0);
1604 EXPORT_SYMBOL_GPL(snd_hda_find_mixer_ctl);
1606 static int find_empty_mixer_ctl_idx(struct hda_codec *codec, const char *name,
1610 /* 16 ctlrs should be large enough */
1611 for (i = 0, idx = start_idx; i < 16; i++, idx++) {
1612 if (!find_mixer_ctl(codec, name, 0, idx))
1619 * snd_hda_ctl_add - Add a control element and assign to the codec
1620 * @codec: HD-audio codec
1621 * @nid: corresponding NID (optional)
1622 * @kctl: the control element to assign
1624 * Add the given control element to an array inside the codec instance.
1625 * All control elements belonging to a codec are supposed to be added
1626 * by this function so that a proper clean-up works at the free or
1627 * reconfiguration time.
1629 * If non-zero @nid is passed, the NID is assigned to the control element.
1630 * The assignment is shown in the codec proc file.
1632 * snd_hda_ctl_add() checks the control subdev id field whether
1633 * #HDA_SUBDEV_NID_FLAG bit is set. If set (and @nid is zero), the lower
1634 * bits value is taken as the NID to assign. The #HDA_NID_ITEM_AMP bit
1635 * specifies if kctl->private_value is a HDA amplifier value.
1637 int snd_hda_ctl_add(struct hda_codec *codec, hda_nid_t nid,
1638 struct snd_kcontrol *kctl)
1641 unsigned short flags = 0;
1642 struct hda_nid_item *item;
1644 if (kctl->id.subdevice & HDA_SUBDEV_AMP_FLAG) {
1645 flags |= HDA_NID_ITEM_AMP;
1647 nid = get_amp_nid_(kctl->private_value);
1649 if ((kctl->id.subdevice & HDA_SUBDEV_NID_FLAG) != 0 && nid == 0)
1650 nid = kctl->id.subdevice & 0xffff;
1651 if (kctl->id.subdevice & (HDA_SUBDEV_NID_FLAG|HDA_SUBDEV_AMP_FLAG))
1652 kctl->id.subdevice = 0;
1653 err = snd_ctl_add(codec->card, kctl);
1656 item = snd_array_new(&codec->mixers);
1661 item->flags = flags;
1664 EXPORT_SYMBOL_GPL(snd_hda_ctl_add);
1667 * snd_hda_add_nid - Assign a NID to a control element
1668 * @codec: HD-audio codec
1669 * @nid: corresponding NID (optional)
1670 * @kctl: the control element to assign
1671 * @index: index to kctl
1673 * Add the given control element to an array inside the codec instance.
1674 * This function is used when #snd_hda_ctl_add cannot be used for 1:1
1675 * NID:KCTL mapping - for example "Capture Source" selector.
1677 int snd_hda_add_nid(struct hda_codec *codec, struct snd_kcontrol *kctl,
1678 unsigned int index, hda_nid_t nid)
1680 struct hda_nid_item *item;
1683 item = snd_array_new(&codec->nids);
1687 item->index = index;
1691 codec_err(codec, "no NID for mapping control %s:%d:%d\n",
1692 kctl->id.name, kctl->id.index, index);
1695 EXPORT_SYMBOL_GPL(snd_hda_add_nid);
1698 * snd_hda_ctls_clear - Clear all controls assigned to the given codec
1699 * @codec: HD-audio codec
1701 void snd_hda_ctls_clear(struct hda_codec *codec)
1704 struct hda_nid_item *items = codec->mixers.list;
1705 for (i = 0; i < codec->mixers.used; i++)
1706 snd_ctl_remove(codec->card, items[i].kctl);
1707 snd_array_free(&codec->mixers);
1708 snd_array_free(&codec->nids);
1712 * snd_hda_lock_devices - pseudo device locking
1715 * toggle card->shutdown to allow/disallow the device access (as a hack)
1717 int snd_hda_lock_devices(struct hda_bus *bus)
1719 struct snd_card *card = bus->card;
1720 struct hda_codec *codec;
1722 spin_lock(&card->files_lock);
1726 if (!list_empty(&card->ctl_files))
1729 list_for_each_codec(codec, bus) {
1730 struct hda_pcm *cpcm;
1731 list_for_each_entry(cpcm, &codec->pcm_list_head, list) {
1734 if (cpcm->pcm->streams[0].substream_opened ||
1735 cpcm->pcm->streams[1].substream_opened)
1739 spin_unlock(&card->files_lock);
1745 spin_unlock(&card->files_lock);
1748 EXPORT_SYMBOL_GPL(snd_hda_lock_devices);
1751 * snd_hda_unlock_devices - pseudo device unlocking
1754 void snd_hda_unlock_devices(struct hda_bus *bus)
1756 struct snd_card *card = bus->card;
1758 spin_lock(&card->files_lock);
1760 spin_unlock(&card->files_lock);
1762 EXPORT_SYMBOL_GPL(snd_hda_unlock_devices);
1765 * snd_hda_codec_reset - Clear all objects assigned to the codec
1766 * @codec: HD-audio codec
1768 * This frees the all PCM and control elements assigned to the codec, and
1769 * clears the caches and restores the pin default configurations.
1771 * When a device is being used, it returns -EBSY. If successfully freed,
1774 int snd_hda_codec_reset(struct hda_codec *codec)
1776 struct hda_bus *bus = codec->bus;
1778 if (snd_hda_lock_devices(bus) < 0)
1781 /* OK, let it free */
1782 snd_hdac_device_unregister(&codec->core);
1784 /* allow device access again */
1785 snd_hda_unlock_devices(bus);
1789 typedef int (*map_slave_func_t)(struct hda_codec *, void *, struct snd_kcontrol *);
1791 /* apply the function to all matching slave ctls in the mixer list */
1792 static int map_slaves(struct hda_codec *codec, const char * const *slaves,
1793 const char *suffix, map_slave_func_t func, void *data)
1795 struct hda_nid_item *items;
1796 const char * const *s;
1799 items = codec->mixers.list;
1800 for (i = 0; i < codec->mixers.used; i++) {
1801 struct snd_kcontrol *sctl = items[i].kctl;
1802 if (!sctl || sctl->id.iface != SNDRV_CTL_ELEM_IFACE_MIXER)
1804 for (s = slaves; *s; s++) {
1805 char tmpname[sizeof(sctl->id.name)];
1806 const char *name = *s;
1808 snprintf(tmpname, sizeof(tmpname), "%s %s",
1812 if (!strcmp(sctl->id.name, name)) {
1813 err = func(codec, data, sctl);
1823 static int check_slave_present(struct hda_codec *codec,
1824 void *data, struct snd_kcontrol *sctl)
1829 /* call kctl->put with the given value(s) */
1830 static int put_kctl_with_value(struct snd_kcontrol *kctl, int val)
1832 struct snd_ctl_elem_value *ucontrol;
1833 ucontrol = kzalloc(sizeof(*ucontrol), GFP_KERNEL);
1836 ucontrol->value.integer.value[0] = val;
1837 ucontrol->value.integer.value[1] = val;
1838 kctl->put(kctl, ucontrol);
1843 struct slave_init_arg {
1844 struct hda_codec *codec;
1848 /* initialize the slave volume with 0dB via snd_ctl_apply_vmaster_slaves() */
1849 static int init_slave_0dB(struct snd_kcontrol *slave,
1850 struct snd_kcontrol *kctl,
1853 struct slave_init_arg *arg = _arg;
1855 const int *tlv = NULL;
1859 if (kctl->vd[0].access & SNDRV_CTL_ELEM_ACCESS_TLV_CALLBACK) {
1860 if (kctl->tlv.c != snd_hda_mixer_amp_tlv) {
1861 codec_err(arg->codec,
1862 "Unexpected TLV callback for slave %s:%d\n",
1863 kctl->id.name, kctl->id.index);
1864 return 0; /* ignore */
1866 get_ctl_amp_tlv(kctl, _tlv);
1868 } else if (kctl->vd[0].access & SNDRV_CTL_ELEM_ACCESS_TLV_READ)
1871 if (!tlv || tlv[SNDRV_CTL_TLVO_TYPE] != SNDRV_CTL_TLVT_DB_SCALE)
1874 step = tlv[SNDRV_CTL_TLVO_DB_SCALE_MUTE_AND_STEP];
1875 step &= ~TLV_DB_SCALE_MUTE;
1878 if (arg->step && arg->step != step) {
1879 codec_err(arg->codec,
1880 "Mismatching dB step for vmaster slave (%d!=%d)\n",
1886 val = -tlv[SNDRV_CTL_TLVO_DB_SCALE_MIN] / step;
1888 put_kctl_with_value(slave, val);
1895 /* unmute the slave via snd_ctl_apply_vmaster_slaves() */
1896 static int init_slave_unmute(struct snd_kcontrol *slave,
1897 struct snd_kcontrol *kctl,
1900 return put_kctl_with_value(slave, 1);
1903 static int add_slave(struct hda_codec *codec,
1904 void *data, struct snd_kcontrol *slave)
1906 return snd_ctl_add_slave(data, slave);
1910 * __snd_hda_add_vmaster - create a virtual master control and add slaves
1911 * @codec: HD-audio codec
1912 * @name: vmaster control name
1913 * @tlv: TLV data (optional)
1914 * @slaves: slave control names (optional)
1915 * @suffix: suffix string to each slave name (optional)
1916 * @init_slave_vol: initialize slaves to unmute/0dB
1917 * @ctl_ret: store the vmaster kcontrol in return
1919 * Create a virtual master control with the given name. The TLV data
1920 * must be either NULL or a valid data.
1922 * @slaves is a NULL-terminated array of strings, each of which is a
1923 * slave control name. All controls with these names are assigned to
1924 * the new virtual master control.
1926 * This function returns zero if successful or a negative error code.
1928 int __snd_hda_add_vmaster(struct hda_codec *codec, char *name,
1929 unsigned int *tlv, const char * const *slaves,
1930 const char *suffix, bool init_slave_vol,
1931 struct snd_kcontrol **ctl_ret)
1933 struct snd_kcontrol *kctl;
1939 err = map_slaves(codec, slaves, suffix, check_slave_present, NULL);
1941 codec_dbg(codec, "No slave found for %s\n", name);
1944 kctl = snd_ctl_make_virtual_master(name, tlv);
1947 err = snd_hda_ctl_add(codec, 0, kctl);
1951 err = map_slaves(codec, slaves, suffix, add_slave, kctl);
1955 /* init with master mute & zero volume */
1956 put_kctl_with_value(kctl, 0);
1957 if (init_slave_vol) {
1958 struct slave_init_arg arg = {
1962 snd_ctl_apply_vmaster_slaves(kctl,
1963 tlv ? init_slave_0dB : init_slave_unmute,
1971 EXPORT_SYMBOL_GPL(__snd_hda_add_vmaster);
1974 * mute-LED control using vmaster
1976 static int vmaster_mute_mode_info(struct snd_kcontrol *kcontrol,
1977 struct snd_ctl_elem_info *uinfo)
1979 static const char * const texts[] = {
1980 "On", "Off", "Follow Master"
1983 return snd_ctl_enum_info(uinfo, 1, 3, texts);
1986 static int vmaster_mute_mode_get(struct snd_kcontrol *kcontrol,
1987 struct snd_ctl_elem_value *ucontrol)
1989 struct hda_vmaster_mute_hook *hook = snd_kcontrol_chip(kcontrol);
1990 ucontrol->value.enumerated.item[0] = hook->mute_mode;
1994 static int vmaster_mute_mode_put(struct snd_kcontrol *kcontrol,
1995 struct snd_ctl_elem_value *ucontrol)
1997 struct hda_vmaster_mute_hook *hook = snd_kcontrol_chip(kcontrol);
1998 unsigned int old_mode = hook->mute_mode;
2000 hook->mute_mode = ucontrol->value.enumerated.item[0];
2001 if (hook->mute_mode > HDA_VMUTE_FOLLOW_MASTER)
2002 hook->mute_mode = HDA_VMUTE_FOLLOW_MASTER;
2003 if (old_mode == hook->mute_mode)
2005 snd_hda_sync_vmaster_hook(hook);
2009 static const struct snd_kcontrol_new vmaster_mute_mode = {
2010 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
2011 .name = "Mute-LED Mode",
2012 .info = vmaster_mute_mode_info,
2013 .get = vmaster_mute_mode_get,
2014 .put = vmaster_mute_mode_put,
2017 /* meta hook to call each driver's vmaster hook */
2018 static void vmaster_hook(void *private_data, int enabled)
2020 struct hda_vmaster_mute_hook *hook = private_data;
2022 if (hook->mute_mode != HDA_VMUTE_FOLLOW_MASTER)
2023 enabled = hook->mute_mode;
2024 hook->hook(hook->codec, enabled);
2028 * snd_hda_add_vmaster_hook - Add a vmaster hook for mute-LED
2029 * @codec: the HDA codec
2030 * @hook: the vmaster hook object
2031 * @expose_enum_ctl: flag to create an enum ctl
2033 * Add a mute-LED hook with the given vmaster switch kctl.
2034 * When @expose_enum_ctl is set, "Mute-LED Mode" control is automatically
2035 * created and associated with the given hook.
2037 int snd_hda_add_vmaster_hook(struct hda_codec *codec,
2038 struct hda_vmaster_mute_hook *hook,
2039 bool expose_enum_ctl)
2041 struct snd_kcontrol *kctl;
2043 if (!hook->hook || !hook->sw_kctl)
2045 hook->codec = codec;
2046 hook->mute_mode = HDA_VMUTE_FOLLOW_MASTER;
2047 snd_ctl_add_vmaster_hook(hook->sw_kctl, vmaster_hook, hook);
2048 if (!expose_enum_ctl)
2050 kctl = snd_ctl_new1(&vmaster_mute_mode, hook);
2053 return snd_hda_ctl_add(codec, 0, kctl);
2055 EXPORT_SYMBOL_GPL(snd_hda_add_vmaster_hook);
2058 * snd_hda_sync_vmaster_hook - Sync vmaster hook
2059 * @hook: the vmaster hook
2061 * Call the hook with the current value for synchronization.
2062 * Should be called in init callback.
2064 void snd_hda_sync_vmaster_hook(struct hda_vmaster_mute_hook *hook)
2066 if (!hook->hook || !hook->codec)
2068 /* don't call vmaster hook in the destructor since it might have
2069 * been already destroyed
2071 if (hook->codec->bus->shutdown)
2073 snd_ctl_sync_vmaster_hook(hook->sw_kctl);
2075 EXPORT_SYMBOL_GPL(snd_hda_sync_vmaster_hook);
2079 * snd_hda_mixer_amp_switch_info - Info callback for a standard AMP mixer switch
2080 * @kcontrol: referred ctl element
2081 * @uinfo: pointer to get/store the data
2083 * The control element is supposed to have the private_value field
2084 * set up via HDA_COMPOSE_AMP_VAL*() or related macros.
2086 int snd_hda_mixer_amp_switch_info(struct snd_kcontrol *kcontrol,
2087 struct snd_ctl_elem_info *uinfo)
2089 int chs = get_amp_channels(kcontrol);
2091 uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN;
2092 uinfo->count = chs == 3 ? 2 : 1;
2093 uinfo->value.integer.min = 0;
2094 uinfo->value.integer.max = 1;
2097 EXPORT_SYMBOL_GPL(snd_hda_mixer_amp_switch_info);
2100 * snd_hda_mixer_amp_switch_get - Get callback for a standard AMP mixer switch
2101 * @kcontrol: ctl element
2102 * @ucontrol: pointer to get/store the data
2104 * The control element is supposed to have the private_value field
2105 * set up via HDA_COMPOSE_AMP_VAL*() or related macros.
2107 int snd_hda_mixer_amp_switch_get(struct snd_kcontrol *kcontrol,
2108 struct snd_ctl_elem_value *ucontrol)
2110 struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
2111 hda_nid_t nid = get_amp_nid(kcontrol);
2112 int chs = get_amp_channels(kcontrol);
2113 int dir = get_amp_direction(kcontrol);
2114 int idx = get_amp_index(kcontrol);
2115 long *valp = ucontrol->value.integer.value;
2118 *valp++ = (snd_hda_codec_amp_read(codec, nid, 0, dir, idx) &
2119 HDA_AMP_MUTE) ? 0 : 1;
2121 *valp = (snd_hda_codec_amp_read(codec, nid, 1, dir, idx) &
2122 HDA_AMP_MUTE) ? 0 : 1;
2125 EXPORT_SYMBOL_GPL(snd_hda_mixer_amp_switch_get);
2128 * snd_hda_mixer_amp_switch_put - Put callback for a standard AMP mixer switch
2129 * @kcontrol: ctl element
2130 * @ucontrol: pointer to get/store the data
2132 * The control element is supposed to have the private_value field
2133 * set up via HDA_COMPOSE_AMP_VAL*() or related macros.
2135 int snd_hda_mixer_amp_switch_put(struct snd_kcontrol *kcontrol,
2136 struct snd_ctl_elem_value *ucontrol)
2138 struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
2139 hda_nid_t nid = get_amp_nid(kcontrol);
2140 int chs = get_amp_channels(kcontrol);
2141 int dir = get_amp_direction(kcontrol);
2142 int idx = get_amp_index(kcontrol);
2143 long *valp = ucontrol->value.integer.value;
2147 change = snd_hda_codec_amp_update(codec, nid, 0, dir, idx,
2149 *valp ? 0 : HDA_AMP_MUTE);
2153 change |= snd_hda_codec_amp_update(codec, nid, 1, dir, idx,
2155 *valp ? 0 : HDA_AMP_MUTE);
2156 hda_call_check_power_status(codec, nid);
2159 EXPORT_SYMBOL_GPL(snd_hda_mixer_amp_switch_put);
2162 * SPDIF out controls
2165 static int snd_hda_spdif_mask_info(struct snd_kcontrol *kcontrol,
2166 struct snd_ctl_elem_info *uinfo)
2168 uinfo->type = SNDRV_CTL_ELEM_TYPE_IEC958;
2173 static int snd_hda_spdif_cmask_get(struct snd_kcontrol *kcontrol,
2174 struct snd_ctl_elem_value *ucontrol)
2176 ucontrol->value.iec958.status[0] = IEC958_AES0_PROFESSIONAL |
2177 IEC958_AES0_NONAUDIO |
2178 IEC958_AES0_CON_EMPHASIS_5015 |
2179 IEC958_AES0_CON_NOT_COPYRIGHT;
2180 ucontrol->value.iec958.status[1] = IEC958_AES1_CON_CATEGORY |
2181 IEC958_AES1_CON_ORIGINAL;
2185 static int snd_hda_spdif_pmask_get(struct snd_kcontrol *kcontrol,
2186 struct snd_ctl_elem_value *ucontrol)
2188 ucontrol->value.iec958.status[0] = IEC958_AES0_PROFESSIONAL |
2189 IEC958_AES0_NONAUDIO |
2190 IEC958_AES0_PRO_EMPHASIS_5015;
2194 static int snd_hda_spdif_default_get(struct snd_kcontrol *kcontrol,
2195 struct snd_ctl_elem_value *ucontrol)
2197 struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
2198 int idx = kcontrol->private_value;
2199 struct hda_spdif_out *spdif;
2201 if (WARN_ON(codec->spdif_out.used <= idx))
2203 mutex_lock(&codec->spdif_mutex);
2204 spdif = snd_array_elem(&codec->spdif_out, idx);
2205 ucontrol->value.iec958.status[0] = spdif->status & 0xff;
2206 ucontrol->value.iec958.status[1] = (spdif->status >> 8) & 0xff;
2207 ucontrol->value.iec958.status[2] = (spdif->status >> 16) & 0xff;
2208 ucontrol->value.iec958.status[3] = (spdif->status >> 24) & 0xff;
2209 mutex_unlock(&codec->spdif_mutex);
2214 /* convert from SPDIF status bits to HDA SPDIF bits
2215 * bit 0 (DigEn) is always set zero (to be filled later)
2217 static unsigned short convert_from_spdif_status(unsigned int sbits)
2219 unsigned short val = 0;
2221 if (sbits & IEC958_AES0_PROFESSIONAL)
2222 val |= AC_DIG1_PROFESSIONAL;
2223 if (sbits & IEC958_AES0_NONAUDIO)
2224 val |= AC_DIG1_NONAUDIO;
2225 if (sbits & IEC958_AES0_PROFESSIONAL) {
2226 if ((sbits & IEC958_AES0_PRO_EMPHASIS) ==
2227 IEC958_AES0_PRO_EMPHASIS_5015)
2228 val |= AC_DIG1_EMPHASIS;
2230 if ((sbits & IEC958_AES0_CON_EMPHASIS) ==
2231 IEC958_AES0_CON_EMPHASIS_5015)
2232 val |= AC_DIG1_EMPHASIS;
2233 if (!(sbits & IEC958_AES0_CON_NOT_COPYRIGHT))
2234 val |= AC_DIG1_COPYRIGHT;
2235 if (sbits & (IEC958_AES1_CON_ORIGINAL << 8))
2236 val |= AC_DIG1_LEVEL;
2237 val |= sbits & (IEC958_AES1_CON_CATEGORY << 8);
2242 /* convert to SPDIF status bits from HDA SPDIF bits
2244 static unsigned int convert_to_spdif_status(unsigned short val)
2246 unsigned int sbits = 0;
2248 if (val & AC_DIG1_NONAUDIO)
2249 sbits |= IEC958_AES0_NONAUDIO;
2250 if (val & AC_DIG1_PROFESSIONAL)
2251 sbits |= IEC958_AES0_PROFESSIONAL;
2252 if (sbits & IEC958_AES0_PROFESSIONAL) {
2253 if (val & AC_DIG1_EMPHASIS)
2254 sbits |= IEC958_AES0_PRO_EMPHASIS_5015;
2256 if (val & AC_DIG1_EMPHASIS)
2257 sbits |= IEC958_AES0_CON_EMPHASIS_5015;
2258 if (!(val & AC_DIG1_COPYRIGHT))
2259 sbits |= IEC958_AES0_CON_NOT_COPYRIGHT;
2260 if (val & AC_DIG1_LEVEL)
2261 sbits |= (IEC958_AES1_CON_ORIGINAL << 8);
2262 sbits |= val & (0x7f << 8);
2267 /* set digital convert verbs both for the given NID and its slaves */
2268 static void set_dig_out(struct hda_codec *codec, hda_nid_t nid,
2273 snd_hdac_regmap_update(&codec->core, nid, AC_VERB_SET_DIGI_CONVERT_1,
2275 d = codec->slave_dig_outs;
2279 snd_hdac_regmap_update(&codec->core, *d,
2280 AC_VERB_SET_DIGI_CONVERT_1, mask, val);
2283 static inline void set_dig_out_convert(struct hda_codec *codec, hda_nid_t nid,
2286 unsigned int mask = 0;
2287 unsigned int val = 0;
2297 set_dig_out(codec, nid, mask, val);
2300 static int snd_hda_spdif_default_put(struct snd_kcontrol *kcontrol,
2301 struct snd_ctl_elem_value *ucontrol)
2303 struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
2304 int idx = kcontrol->private_value;
2305 struct hda_spdif_out *spdif;
2310 if (WARN_ON(codec->spdif_out.used <= idx))
2312 mutex_lock(&codec->spdif_mutex);
2313 spdif = snd_array_elem(&codec->spdif_out, idx);
2315 spdif->status = ucontrol->value.iec958.status[0] |
2316 ((unsigned int)ucontrol->value.iec958.status[1] << 8) |
2317 ((unsigned int)ucontrol->value.iec958.status[2] << 16) |
2318 ((unsigned int)ucontrol->value.iec958.status[3] << 24);
2319 val = convert_from_spdif_status(spdif->status);
2320 val |= spdif->ctls & 1;
2321 change = spdif->ctls != val;
2323 if (change && nid != (u16)-1)
2324 set_dig_out_convert(codec, nid, val & 0xff, (val >> 8) & 0xff);
2325 mutex_unlock(&codec->spdif_mutex);
2329 #define snd_hda_spdif_out_switch_info snd_ctl_boolean_mono_info
2331 static int snd_hda_spdif_out_switch_get(struct snd_kcontrol *kcontrol,
2332 struct snd_ctl_elem_value *ucontrol)
2334 struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
2335 int idx = kcontrol->private_value;
2336 struct hda_spdif_out *spdif;
2338 if (WARN_ON(codec->spdif_out.used <= idx))
2340 mutex_lock(&codec->spdif_mutex);
2341 spdif = snd_array_elem(&codec->spdif_out, idx);
2342 ucontrol->value.integer.value[0] = spdif->ctls & AC_DIG1_ENABLE;
2343 mutex_unlock(&codec->spdif_mutex);
2347 static inline void set_spdif_ctls(struct hda_codec *codec, hda_nid_t nid,
2350 set_dig_out_convert(codec, nid, dig1, dig2);
2351 /* unmute amp switch (if any) */
2352 if ((get_wcaps(codec, nid) & AC_WCAP_OUT_AMP) &&
2353 (dig1 & AC_DIG1_ENABLE))
2354 snd_hda_codec_amp_stereo(codec, nid, HDA_OUTPUT, 0,
2358 static int snd_hda_spdif_out_switch_put(struct snd_kcontrol *kcontrol,
2359 struct snd_ctl_elem_value *ucontrol)
2361 struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
2362 int idx = kcontrol->private_value;
2363 struct hda_spdif_out *spdif;
2368 if (WARN_ON(codec->spdif_out.used <= idx))
2370 mutex_lock(&codec->spdif_mutex);
2371 spdif = snd_array_elem(&codec->spdif_out, idx);
2373 val = spdif->ctls & ~AC_DIG1_ENABLE;
2374 if (ucontrol->value.integer.value[0])
2375 val |= AC_DIG1_ENABLE;
2376 change = spdif->ctls != val;
2378 if (change && nid != (u16)-1)
2379 set_spdif_ctls(codec, nid, val & 0xff, -1);
2380 mutex_unlock(&codec->spdif_mutex);
2384 static struct snd_kcontrol_new dig_mixes[] = {
2386 .access = SNDRV_CTL_ELEM_ACCESS_READ,
2387 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
2388 .name = SNDRV_CTL_NAME_IEC958("", PLAYBACK, CON_MASK),
2389 .info = snd_hda_spdif_mask_info,
2390 .get = snd_hda_spdif_cmask_get,
2393 .access = SNDRV_CTL_ELEM_ACCESS_READ,
2394 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
2395 .name = SNDRV_CTL_NAME_IEC958("", PLAYBACK, PRO_MASK),
2396 .info = snd_hda_spdif_mask_info,
2397 .get = snd_hda_spdif_pmask_get,
2400 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
2401 .name = SNDRV_CTL_NAME_IEC958("", PLAYBACK, DEFAULT),
2402 .info = snd_hda_spdif_mask_info,
2403 .get = snd_hda_spdif_default_get,
2404 .put = snd_hda_spdif_default_put,
2407 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
2408 .name = SNDRV_CTL_NAME_IEC958("", PLAYBACK, SWITCH),
2409 .info = snd_hda_spdif_out_switch_info,
2410 .get = snd_hda_spdif_out_switch_get,
2411 .put = snd_hda_spdif_out_switch_put,
2417 * snd_hda_create_dig_out_ctls - create Output SPDIF-related controls
2418 * @codec: the HDA codec
2419 * @associated_nid: NID that new ctls associated with
2420 * @cvt_nid: converter NID
2421 * @type: HDA_PCM_TYPE_*
2422 * Creates controls related with the digital output.
2423 * Called from each patch supporting the digital out.
2425 * Returns 0 if successful, or a negative error code.
2427 int snd_hda_create_dig_out_ctls(struct hda_codec *codec,
2428 hda_nid_t associated_nid,
2433 struct snd_kcontrol *kctl;
2434 struct snd_kcontrol_new *dig_mix;
2437 const int spdif_index = 16;
2438 struct hda_spdif_out *spdif;
2439 struct hda_bus *bus = codec->bus;
2441 if (bus->primary_dig_out_type == HDA_PCM_TYPE_HDMI &&
2442 type == HDA_PCM_TYPE_SPDIF) {
2444 } else if (bus->primary_dig_out_type == HDA_PCM_TYPE_SPDIF &&
2445 type == HDA_PCM_TYPE_HDMI) {
2446 /* suppose a single SPDIF device */
2447 for (dig_mix = dig_mixes; dig_mix->name; dig_mix++) {
2448 kctl = find_mixer_ctl(codec, dig_mix->name, 0, 0);
2451 kctl->id.index = spdif_index;
2453 bus->primary_dig_out_type = HDA_PCM_TYPE_HDMI;
2455 if (!bus->primary_dig_out_type)
2456 bus->primary_dig_out_type = type;
2458 idx = find_empty_mixer_ctl_idx(codec, "IEC958 Playback Switch", idx);
2460 codec_err(codec, "too many IEC958 outputs\n");
2463 spdif = snd_array_new(&codec->spdif_out);
2466 for (dig_mix = dig_mixes; dig_mix->name; dig_mix++) {
2467 kctl = snd_ctl_new1(dig_mix, codec);
2470 kctl->id.index = idx;
2471 kctl->private_value = codec->spdif_out.used - 1;
2472 err = snd_hda_ctl_add(codec, associated_nid, kctl);
2476 spdif->nid = cvt_nid;
2477 snd_hdac_regmap_read(&codec->core, cvt_nid,
2478 AC_VERB_GET_DIGI_CONVERT_1, &val);
2480 spdif->status = convert_to_spdif_status(spdif->ctls);
2483 EXPORT_SYMBOL_GPL(snd_hda_create_dig_out_ctls);
2486 * snd_hda_spdif_out_of_nid - get the hda_spdif_out entry from the given NID
2487 * @codec: the HDA codec
2490 * call within spdif_mutex lock
2492 struct hda_spdif_out *snd_hda_spdif_out_of_nid(struct hda_codec *codec,
2495 struct hda_spdif_out *spdif;
2498 snd_array_for_each(&codec->spdif_out, i, spdif) {
2499 if (spdif->nid == nid)
2504 EXPORT_SYMBOL_GPL(snd_hda_spdif_out_of_nid);
2507 * snd_hda_spdif_ctls_unassign - Unassign the given SPDIF ctl
2508 * @codec: the HDA codec
2509 * @idx: the SPDIF ctl index
2511 * Unassign the widget from the given SPDIF control.
2513 void snd_hda_spdif_ctls_unassign(struct hda_codec *codec, int idx)
2515 struct hda_spdif_out *spdif;
2517 if (WARN_ON(codec->spdif_out.used <= idx))
2519 mutex_lock(&codec->spdif_mutex);
2520 spdif = snd_array_elem(&codec->spdif_out, idx);
2521 spdif->nid = (u16)-1;
2522 mutex_unlock(&codec->spdif_mutex);
2524 EXPORT_SYMBOL_GPL(snd_hda_spdif_ctls_unassign);
2527 * snd_hda_spdif_ctls_assign - Assign the SPDIF controls to the given NID
2528 * @codec: the HDA codec
2529 * @idx: the SPDIF ctl idx
2532 * Assign the widget to the SPDIF control with the given index.
2534 void snd_hda_spdif_ctls_assign(struct hda_codec *codec, int idx, hda_nid_t nid)
2536 struct hda_spdif_out *spdif;
2539 if (WARN_ON(codec->spdif_out.used <= idx))
2541 mutex_lock(&codec->spdif_mutex);
2542 spdif = snd_array_elem(&codec->spdif_out, idx);
2543 if (spdif->nid != nid) {
2546 set_spdif_ctls(codec, nid, val & 0xff, (val >> 8) & 0xff);
2548 mutex_unlock(&codec->spdif_mutex);
2550 EXPORT_SYMBOL_GPL(snd_hda_spdif_ctls_assign);
2553 * SPDIF sharing with analog output
2555 static int spdif_share_sw_get(struct snd_kcontrol *kcontrol,
2556 struct snd_ctl_elem_value *ucontrol)
2558 struct hda_multi_out *mout = snd_kcontrol_chip(kcontrol);
2559 ucontrol->value.integer.value[0] = mout->share_spdif;
2563 static int spdif_share_sw_put(struct snd_kcontrol *kcontrol,
2564 struct snd_ctl_elem_value *ucontrol)
2566 struct hda_multi_out *mout = snd_kcontrol_chip(kcontrol);
2567 mout->share_spdif = !!ucontrol->value.integer.value[0];
2571 static const struct snd_kcontrol_new spdif_share_sw = {
2572 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
2573 .name = "IEC958 Default PCM Playback Switch",
2574 .info = snd_ctl_boolean_mono_info,
2575 .get = spdif_share_sw_get,
2576 .put = spdif_share_sw_put,
2580 * snd_hda_create_spdif_share_sw - create Default PCM switch
2581 * @codec: the HDA codec
2582 * @mout: multi-out instance
2584 int snd_hda_create_spdif_share_sw(struct hda_codec *codec,
2585 struct hda_multi_out *mout)
2587 struct snd_kcontrol *kctl;
2589 if (!mout->dig_out_nid)
2592 kctl = snd_ctl_new1(&spdif_share_sw, mout);
2595 /* ATTENTION: here mout is passed as private_data, instead of codec */
2596 return snd_hda_ctl_add(codec, mout->dig_out_nid, kctl);
2598 EXPORT_SYMBOL_GPL(snd_hda_create_spdif_share_sw);
2604 #define snd_hda_spdif_in_switch_info snd_hda_spdif_out_switch_info
2606 static int snd_hda_spdif_in_switch_get(struct snd_kcontrol *kcontrol,
2607 struct snd_ctl_elem_value *ucontrol)
2609 struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
2611 ucontrol->value.integer.value[0] = codec->spdif_in_enable;
2615 static int snd_hda_spdif_in_switch_put(struct snd_kcontrol *kcontrol,
2616 struct snd_ctl_elem_value *ucontrol)
2618 struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
2619 hda_nid_t nid = kcontrol->private_value;
2620 unsigned int val = !!ucontrol->value.integer.value[0];
2623 mutex_lock(&codec->spdif_mutex);
2624 change = codec->spdif_in_enable != val;
2626 codec->spdif_in_enable = val;
2627 snd_hdac_regmap_write(&codec->core, nid,
2628 AC_VERB_SET_DIGI_CONVERT_1, val);
2630 mutex_unlock(&codec->spdif_mutex);
2634 static int snd_hda_spdif_in_status_get(struct snd_kcontrol *kcontrol,
2635 struct snd_ctl_elem_value *ucontrol)
2637 struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
2638 hda_nid_t nid = kcontrol->private_value;
2642 snd_hdac_regmap_read(&codec->core, nid,
2643 AC_VERB_GET_DIGI_CONVERT_1, &val);
2644 sbits = convert_to_spdif_status(val);
2645 ucontrol->value.iec958.status[0] = sbits;
2646 ucontrol->value.iec958.status[1] = sbits >> 8;
2647 ucontrol->value.iec958.status[2] = sbits >> 16;
2648 ucontrol->value.iec958.status[3] = sbits >> 24;
2652 static struct snd_kcontrol_new dig_in_ctls[] = {
2654 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
2655 .name = SNDRV_CTL_NAME_IEC958("", CAPTURE, SWITCH),
2656 .info = snd_hda_spdif_in_switch_info,
2657 .get = snd_hda_spdif_in_switch_get,
2658 .put = snd_hda_spdif_in_switch_put,
2661 .access = SNDRV_CTL_ELEM_ACCESS_READ,
2662 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
2663 .name = SNDRV_CTL_NAME_IEC958("", CAPTURE, DEFAULT),
2664 .info = snd_hda_spdif_mask_info,
2665 .get = snd_hda_spdif_in_status_get,
2671 * snd_hda_create_spdif_in_ctls - create Input SPDIF-related controls
2672 * @codec: the HDA codec
2673 * @nid: audio in widget NID
2675 * Creates controls related with the SPDIF input.
2676 * Called from each patch supporting the SPDIF in.
2678 * Returns 0 if successful, or a negative error code.
2680 int snd_hda_create_spdif_in_ctls(struct hda_codec *codec, hda_nid_t nid)
2683 struct snd_kcontrol *kctl;
2684 struct snd_kcontrol_new *dig_mix;
2687 idx = find_empty_mixer_ctl_idx(codec, "IEC958 Capture Switch", 0);
2689 codec_err(codec, "too many IEC958 inputs\n");
2692 for (dig_mix = dig_in_ctls; dig_mix->name; dig_mix++) {
2693 kctl = snd_ctl_new1(dig_mix, codec);
2696 kctl->private_value = nid;
2697 err = snd_hda_ctl_add(codec, nid, kctl);
2701 codec->spdif_in_enable =
2702 snd_hda_codec_read(codec, nid, 0,
2703 AC_VERB_GET_DIGI_CONVERT_1, 0) &
2707 EXPORT_SYMBOL_GPL(snd_hda_create_spdif_in_ctls);
2710 * snd_hda_codec_set_power_to_all - Set the power state to all widgets
2711 * @codec: the HDA codec
2712 * @fg: function group (not used now)
2713 * @power_state: the power state to set (AC_PWRST_*)
2715 * Set the given power state to all widgets that have the power control.
2716 * If the codec has power_filter set, it evaluates the power state and
2717 * filter out if it's unchanged as D3.
2719 void snd_hda_codec_set_power_to_all(struct hda_codec *codec, hda_nid_t fg,
2720 unsigned int power_state)
2724 for_each_hda_codec_node(nid, codec) {
2725 unsigned int wcaps = get_wcaps(codec, nid);
2726 unsigned int state = power_state;
2727 if (!(wcaps & AC_WCAP_POWER))
2729 if (codec->power_filter) {
2730 state = codec->power_filter(codec, nid, power_state);
2731 if (state != power_state && power_state == AC_PWRST_D3)
2734 snd_hda_codec_write(codec, nid, 0, AC_VERB_SET_POWER_STATE,
2738 EXPORT_SYMBOL_GPL(snd_hda_codec_set_power_to_all);
2741 * snd_hda_codec_eapd_power_filter - A power filter callback for EAPD
2742 * @codec: the HDA codec
2744 * @power_state: power state to evalue
2746 * Don't power down the widget if it controls eapd and EAPD_BTLENABLE is set.
2747 * This can be used a codec power_filter callback.
2749 unsigned int snd_hda_codec_eapd_power_filter(struct hda_codec *codec,
2751 unsigned int power_state)
2753 if (nid == codec->core.afg || nid == codec->core.mfg)
2755 if (power_state == AC_PWRST_D3 &&
2756 get_wcaps_type(get_wcaps(codec, nid)) == AC_WID_PIN &&
2757 (snd_hda_query_pin_caps(codec, nid) & AC_PINCAP_EAPD)) {
2758 int eapd = snd_hda_codec_read(codec, nid, 0,
2759 AC_VERB_GET_EAPD_BTLENABLE, 0);
2765 EXPORT_SYMBOL_GPL(snd_hda_codec_eapd_power_filter);
2768 * set power state of the codec, and return the power state
2770 static unsigned int hda_set_power_state(struct hda_codec *codec,
2771 unsigned int power_state)
2773 hda_nid_t fg = codec->core.afg ? codec->core.afg : codec->core.mfg;
2778 /* this delay seems necessary to avoid click noise at power-down */
2779 if (power_state == AC_PWRST_D3) {
2780 if (codec->depop_delay < 0)
2781 msleep(codec_has_epss(codec) ? 10 : 100);
2782 else if (codec->depop_delay > 0)
2783 msleep(codec->depop_delay);
2784 flags = HDA_RW_NO_RESPONSE_FALLBACK;
2787 /* repeat power states setting at most 10 times*/
2788 for (count = 0; count < 10; count++) {
2789 if (codec->patch_ops.set_power_state)
2790 codec->patch_ops.set_power_state(codec, fg,
2793 state = power_state;
2794 if (codec->power_filter)
2795 state = codec->power_filter(codec, fg, state);
2796 if (state == power_state || power_state != AC_PWRST_D3)
2797 snd_hda_codec_read(codec, fg, flags,
2798 AC_VERB_SET_POWER_STATE,
2800 snd_hda_codec_set_power_to_all(codec, fg, power_state);
2802 state = snd_hda_sync_power_state(codec, fg, power_state);
2803 if (!(state & AC_PWRST_ERROR))
2810 /* sync power states of all widgets;
2811 * this is called at the end of codec parsing
2813 static void sync_power_up_states(struct hda_codec *codec)
2817 /* don't care if no filter is used */
2818 if (!codec->power_filter)
2821 for_each_hda_codec_node(nid, codec) {
2822 unsigned int wcaps = get_wcaps(codec, nid);
2823 unsigned int target;
2824 if (!(wcaps & AC_WCAP_POWER))
2826 target = codec->power_filter(codec, nid, AC_PWRST_D0);
2827 if (target == AC_PWRST_D0)
2829 if (!snd_hda_check_power_state(codec, nid, target))
2830 snd_hda_codec_write(codec, nid, 0,
2831 AC_VERB_SET_POWER_STATE, target);
2835 #ifdef CONFIG_SND_HDA_RECONFIG
2836 /* execute additional init verbs */
2837 static void hda_exec_init_verbs(struct hda_codec *codec)
2839 if (codec->init_verbs.list)
2840 snd_hda_sequence_write(codec, codec->init_verbs.list);
2843 static inline void hda_exec_init_verbs(struct hda_codec *codec) {}
2847 /* update the power on/off account with the current jiffies */
2848 static void update_power_acct(struct hda_codec *codec, bool on)
2850 unsigned long delta = jiffies - codec->power_jiffies;
2853 codec->power_on_acct += delta;
2855 codec->power_off_acct += delta;
2856 codec->power_jiffies += delta;
2859 void snd_hda_update_power_acct(struct hda_codec *codec)
2861 update_power_acct(codec, hda_codec_is_power_on(codec));
2865 * call suspend and power-down; used both from PM and power-save
2866 * this function returns the power state in the end
2868 static unsigned int hda_call_codec_suspend(struct hda_codec *codec)
2872 snd_hdac_enter_pm(&codec->core);
2873 if (codec->patch_ops.suspend)
2874 codec->patch_ops.suspend(codec);
2875 hda_cleanup_all_streams(codec);
2876 state = hda_set_power_state(codec, AC_PWRST_D3);
2877 update_power_acct(codec, true);
2878 snd_hdac_leave_pm(&codec->core);
2883 * kick up codec; used both from PM and power-save
2885 static void hda_call_codec_resume(struct hda_codec *codec)
2887 snd_hdac_enter_pm(&codec->core);
2888 if (codec->core.regmap)
2889 regcache_mark_dirty(codec->core.regmap);
2891 codec->power_jiffies = jiffies;
2893 hda_set_power_state(codec, AC_PWRST_D0);
2894 restore_shutup_pins(codec);
2895 hda_exec_init_verbs(codec);
2896 snd_hda_jack_set_dirty_all(codec);
2897 if (codec->patch_ops.resume)
2898 codec->patch_ops.resume(codec);
2900 if (codec->patch_ops.init)
2901 codec->patch_ops.init(codec);
2902 if (codec->core.regmap)
2903 regcache_sync(codec->core.regmap);
2906 if (codec->jackpoll_interval)
2907 hda_jackpoll_work(&codec->jackpoll_work.work);
2909 snd_hda_jack_report_sync(codec);
2910 codec->core.dev.power.power_state = PMSG_ON;
2911 snd_hdac_leave_pm(&codec->core);
2914 static int hda_codec_runtime_suspend(struct device *dev)
2916 struct hda_codec *codec = dev_to_hda_codec(dev);
2919 cancel_delayed_work_sync(&codec->jackpoll_work);
2920 state = hda_call_codec_suspend(codec);
2921 if (codec->link_down_at_suspend ||
2922 (codec_has_clkstop(codec) && codec_has_epss(codec) &&
2923 (state & AC_PWRST_CLK_STOP_OK)))
2924 snd_hdac_codec_link_down(&codec->core);
2925 codec_display_power(codec, false);
2929 static int hda_codec_runtime_resume(struct device *dev)
2931 struct hda_codec *codec = dev_to_hda_codec(dev);
2933 codec_display_power(codec, true);
2934 snd_hdac_codec_link_up(&codec->core);
2935 hda_call_codec_resume(codec);
2936 pm_runtime_mark_last_busy(dev);
2939 #endif /* CONFIG_PM */
2941 #ifdef CONFIG_PM_SLEEP
2942 static int hda_codec_pm_suspend(struct device *dev)
2944 dev->power.power_state = PMSG_SUSPEND;
2945 return pm_runtime_force_suspend(dev);
2948 static int hda_codec_pm_resume(struct device *dev)
2950 dev->power.power_state = PMSG_RESUME;
2951 return pm_runtime_force_resume(dev);
2954 static int hda_codec_pm_freeze(struct device *dev)
2956 dev->power.power_state = PMSG_FREEZE;
2957 return pm_runtime_force_suspend(dev);
2960 static int hda_codec_pm_thaw(struct device *dev)
2962 dev->power.power_state = PMSG_THAW;
2963 return pm_runtime_force_resume(dev);
2966 static int hda_codec_pm_restore(struct device *dev)
2968 dev->power.power_state = PMSG_RESTORE;
2969 return pm_runtime_force_resume(dev);
2971 #endif /* CONFIG_PM_SLEEP */
2973 /* referred in hda_bind.c */
2974 const struct dev_pm_ops hda_codec_driver_pm = {
2975 #ifdef CONFIG_PM_SLEEP
2976 .suspend = hda_codec_pm_suspend,
2977 .resume = hda_codec_pm_resume,
2978 .freeze = hda_codec_pm_freeze,
2979 .thaw = hda_codec_pm_thaw,
2980 .poweroff = hda_codec_pm_suspend,
2981 .restore = hda_codec_pm_restore,
2982 #endif /* CONFIG_PM_SLEEP */
2983 SET_RUNTIME_PM_OPS(hda_codec_runtime_suspend, hda_codec_runtime_resume,
2988 * add standard channel maps if not specified
2990 static int add_std_chmaps(struct hda_codec *codec)
2992 struct hda_pcm *pcm;
2995 list_for_each_entry(pcm, &codec->pcm_list_head, list) {
2996 for (str = 0; str < 2; str++) {
2997 struct hda_pcm_stream *hinfo = &pcm->stream[str];
2998 struct snd_pcm_chmap *chmap;
2999 const struct snd_pcm_chmap_elem *elem;
3001 if (!pcm->pcm || pcm->own_chmap || !hinfo->substreams)
3003 elem = hinfo->chmap ? hinfo->chmap : snd_pcm_std_chmaps;
3004 err = snd_pcm_add_chmap_ctls(pcm->pcm, str, elem,
3005 hinfo->channels_max,
3009 chmap->channel_mask = SND_PCM_CHMAP_MASK_2468;
3015 /* default channel maps for 2.1 speakers;
3016 * since HD-audio supports only stereo, odd number channels are omitted
3018 const struct snd_pcm_chmap_elem snd_pcm_2_1_chmaps[] = {
3020 .map = { SNDRV_CHMAP_FL, SNDRV_CHMAP_FR } },
3022 .map = { SNDRV_CHMAP_FL, SNDRV_CHMAP_FR,
3023 SNDRV_CHMAP_LFE, SNDRV_CHMAP_LFE } },
3026 EXPORT_SYMBOL_GPL(snd_pcm_2_1_chmaps);
3028 int snd_hda_codec_build_controls(struct hda_codec *codec)
3031 hda_exec_init_verbs(codec);
3032 /* continue to initialize... */
3033 if (codec->patch_ops.init)
3034 err = codec->patch_ops.init(codec);
3035 if (!err && codec->patch_ops.build_controls)
3036 err = codec->patch_ops.build_controls(codec);
3040 /* we create chmaps here instead of build_pcms */
3041 err = add_std_chmaps(codec);
3045 if (codec->jackpoll_interval)
3046 hda_jackpoll_work(&codec->jackpoll_work.work);
3048 snd_hda_jack_report_sync(codec); /* call at the last init point */
3049 sync_power_up_states(codec);
3052 EXPORT_SYMBOL_GPL(snd_hda_codec_build_controls);
3057 static int hda_pcm_default_open_close(struct hda_pcm_stream *hinfo,
3058 struct hda_codec *codec,
3059 struct snd_pcm_substream *substream)
3064 static int hda_pcm_default_prepare(struct hda_pcm_stream *hinfo,
3065 struct hda_codec *codec,
3066 unsigned int stream_tag,
3067 unsigned int format,
3068 struct snd_pcm_substream *substream)
3070 snd_hda_codec_setup_stream(codec, hinfo->nid, stream_tag, 0, format);
3074 static int hda_pcm_default_cleanup(struct hda_pcm_stream *hinfo,
3075 struct hda_codec *codec,
3076 struct snd_pcm_substream *substream)
3078 snd_hda_codec_cleanup_stream(codec, hinfo->nid);
3082 static int set_pcm_default_values(struct hda_codec *codec,
3083 struct hda_pcm_stream *info)
3087 /* query support PCM information from the given NID */
3088 if (info->nid && (!info->rates || !info->formats)) {
3089 err = snd_hda_query_supported_pcm(codec, info->nid,
3090 info->rates ? NULL : &info->rates,
3091 info->formats ? NULL : &info->formats,
3092 info->maxbps ? NULL : &info->maxbps);
3096 if (info->ops.open == NULL)
3097 info->ops.open = hda_pcm_default_open_close;
3098 if (info->ops.close == NULL)
3099 info->ops.close = hda_pcm_default_open_close;
3100 if (info->ops.prepare == NULL) {
3101 if (snd_BUG_ON(!info->nid))
3103 info->ops.prepare = hda_pcm_default_prepare;
3105 if (info->ops.cleanup == NULL) {
3106 if (snd_BUG_ON(!info->nid))
3108 info->ops.cleanup = hda_pcm_default_cleanup;
3114 * codec prepare/cleanup entries
3117 * snd_hda_codec_prepare - Prepare a stream
3118 * @codec: the HDA codec
3119 * @hinfo: PCM information
3120 * @stream: stream tag to assign
3121 * @format: format id to assign
3122 * @substream: PCM substream to assign
3124 * Calls the prepare callback set by the codec with the given arguments.
3125 * Clean up the inactive streams when successful.
3127 int snd_hda_codec_prepare(struct hda_codec *codec,
3128 struct hda_pcm_stream *hinfo,
3129 unsigned int stream,
3130 unsigned int format,
3131 struct snd_pcm_substream *substream)
3134 mutex_lock(&codec->bus->prepare_mutex);
3135 if (hinfo->ops.prepare)
3136 ret = hinfo->ops.prepare(hinfo, codec, stream, format,
3141 purify_inactive_streams(codec);
3142 mutex_unlock(&codec->bus->prepare_mutex);
3145 EXPORT_SYMBOL_GPL(snd_hda_codec_prepare);
3148 * snd_hda_codec_cleanup - Prepare a stream
3149 * @codec: the HDA codec
3150 * @hinfo: PCM information
3151 * @substream: PCM substream
3153 * Calls the cleanup callback set by the codec with the given arguments.
3155 void snd_hda_codec_cleanup(struct hda_codec *codec,
3156 struct hda_pcm_stream *hinfo,
3157 struct snd_pcm_substream *substream)
3159 mutex_lock(&codec->bus->prepare_mutex);
3160 if (hinfo->ops.cleanup)
3161 hinfo->ops.cleanup(hinfo, codec, substream);
3162 mutex_unlock(&codec->bus->prepare_mutex);
3164 EXPORT_SYMBOL_GPL(snd_hda_codec_cleanup);
3167 const char *snd_hda_pcm_type_name[HDA_PCM_NTYPES] = {
3168 "Audio", "SPDIF", "HDMI", "Modem"
3172 * get the empty PCM device number to assign
3174 static int get_empty_pcm_device(struct hda_bus *bus, unsigned int type)
3176 /* audio device indices; not linear to keep compatibility */
3177 /* assigned to static slots up to dev#10; if more needed, assign
3178 * the later slot dynamically (when CONFIG_SND_DYNAMIC_MINORS=y)
3180 static int audio_idx[HDA_PCM_NTYPES][5] = {
3181 [HDA_PCM_TYPE_AUDIO] = { 0, 2, 4, 5, -1 },
3182 [HDA_PCM_TYPE_SPDIF] = { 1, -1 },
3183 [HDA_PCM_TYPE_HDMI] = { 3, 7, 8, 9, -1 },
3184 [HDA_PCM_TYPE_MODEM] = { 6, -1 },
3188 if (type >= HDA_PCM_NTYPES) {
3189 dev_err(bus->card->dev, "Invalid PCM type %d\n", type);
3193 for (i = 0; audio_idx[type][i] >= 0; i++) {
3194 #ifndef CONFIG_SND_DYNAMIC_MINORS
3195 if (audio_idx[type][i] >= 8)
3198 if (!test_and_set_bit(audio_idx[type][i], bus->pcm_dev_bits))
3199 return audio_idx[type][i];
3202 #ifdef CONFIG_SND_DYNAMIC_MINORS
3203 /* non-fixed slots starting from 10 */
3204 for (i = 10; i < 32; i++) {
3205 if (!test_and_set_bit(i, bus->pcm_dev_bits))
3210 dev_warn(bus->card->dev, "Too many %s devices\n",
3211 snd_hda_pcm_type_name[type]);
3212 #ifndef CONFIG_SND_DYNAMIC_MINORS
3213 dev_warn(bus->card->dev,
3214 "Consider building the kernel with CONFIG_SND_DYNAMIC_MINORS=y\n");
3219 /* call build_pcms ops of the given codec and set up the default parameters */
3220 int snd_hda_codec_parse_pcms(struct hda_codec *codec)
3222 struct hda_pcm *cpcm;
3225 if (!list_empty(&codec->pcm_list_head))
3226 return 0; /* already parsed */
3228 if (!codec->patch_ops.build_pcms)
3231 err = codec->patch_ops.build_pcms(codec);
3233 codec_err(codec, "cannot build PCMs for #%d (error %d)\n",
3234 codec->core.addr, err);
3238 list_for_each_entry(cpcm, &codec->pcm_list_head, list) {
3241 for (stream = 0; stream < 2; stream++) {
3242 struct hda_pcm_stream *info = &cpcm->stream[stream];
3244 if (!info->substreams)
3246 err = set_pcm_default_values(codec, info);
3249 "fail to setup default for PCM %s\n",
3258 EXPORT_SYMBOL_GPL(snd_hda_codec_parse_pcms);
3260 /* assign all PCMs of the given codec */
3261 int snd_hda_codec_build_pcms(struct hda_codec *codec)
3263 struct hda_bus *bus = codec->bus;
3264 struct hda_pcm *cpcm;
3267 err = snd_hda_codec_parse_pcms(codec);
3271 /* attach a new PCM streams */
3272 list_for_each_entry(cpcm, &codec->pcm_list_head, list) {
3274 continue; /* already attached */
3275 if (!cpcm->stream[0].substreams && !cpcm->stream[1].substreams)
3276 continue; /* no substreams assigned */
3278 dev = get_empty_pcm_device(bus, cpcm->pcm_type);
3280 cpcm->device = SNDRV_PCM_INVALID_DEVICE;
3281 continue; /* no fatal error */
3284 err = snd_hda_attach_pcm_stream(bus, codec, cpcm);
3287 "cannot attach PCM stream %d for codec #%d\n",
3288 dev, codec->core.addr);
3289 continue; /* no fatal error */
3297 * snd_hda_add_new_ctls - create controls from the array
3298 * @codec: the HDA codec
3299 * @knew: the array of struct snd_kcontrol_new
3301 * This helper function creates and add new controls in the given array.
3302 * The array must be terminated with an empty entry as terminator.
3304 * Returns 0 if successful, or a negative error code.
3306 int snd_hda_add_new_ctls(struct hda_codec *codec,
3307 const struct snd_kcontrol_new *knew)
3311 for (; knew->name; knew++) {
3312 struct snd_kcontrol *kctl;
3313 int addr = 0, idx = 0;
3314 if (knew->iface == (__force snd_ctl_elem_iface_t)-1)
3315 continue; /* skip this codec private value */
3317 kctl = snd_ctl_new1(knew, codec);
3321 kctl->id.device = addr;
3323 kctl->id.index = idx;
3324 err = snd_hda_ctl_add(codec, 0, kctl);
3327 /* try first with another device index corresponding to
3328 * the codec addr; if it still fails (or it's the
3329 * primary codec), then try another control index
3331 if (!addr && codec->core.addr)
3332 addr = codec->core.addr;
3333 else if (!idx && !knew->index) {
3334 idx = find_empty_mixer_ctl_idx(codec,
3344 EXPORT_SYMBOL_GPL(snd_hda_add_new_ctls);
3347 static void codec_set_power_save(struct hda_codec *codec, int delay)
3349 struct device *dev = hda_codec_dev(codec);
3351 if (delay == 0 && codec->auto_runtime_pm)
3355 pm_runtime_set_autosuspend_delay(dev, delay);
3356 pm_runtime_use_autosuspend(dev);
3357 pm_runtime_allow(dev);
3358 if (!pm_runtime_suspended(dev))
3359 pm_runtime_mark_last_busy(dev);
3361 pm_runtime_dont_use_autosuspend(dev);
3362 pm_runtime_forbid(dev);
3367 * snd_hda_set_power_save - reprogram autosuspend for the given delay
3368 * @bus: HD-audio bus
3369 * @delay: autosuspend delay in msec, 0 = off
3371 * Synchronize the runtime PM autosuspend state from the power_save option.
3373 void snd_hda_set_power_save(struct hda_bus *bus, int delay)
3375 struct hda_codec *c;
3377 list_for_each_codec(c, bus)
3378 codec_set_power_save(c, delay);
3380 EXPORT_SYMBOL_GPL(snd_hda_set_power_save);
3383 * snd_hda_check_amp_list_power - Check the amp list and update the power
3384 * @codec: HD-audio codec
3385 * @check: the object containing an AMP list and the status
3386 * @nid: NID to check / update
3388 * Check whether the given NID is in the amp list. If it's in the list,
3389 * check the current AMP status, and update the the power-status according
3390 * to the mute status.
3392 * This function is supposed to be set or called from the check_power_status
3395 int snd_hda_check_amp_list_power(struct hda_codec *codec,
3396 struct hda_loopback_check *check,
3399 const struct hda_amp_list *p;
3402 if (!check->amplist)
3404 for (p = check->amplist; p->nid; p++) {
3409 return 0; /* nothing changed */
3411 for (p = check->amplist; p->nid; p++) {
3412 for (ch = 0; ch < 2; ch++) {
3413 v = snd_hda_codec_amp_read(codec, p->nid, ch, p->dir,
3415 if (!(v & HDA_AMP_MUTE) && v > 0) {
3416 if (!check->power_on) {
3417 check->power_on = 1;
3418 snd_hda_power_up_pm(codec);
3424 if (check->power_on) {
3425 check->power_on = 0;
3426 snd_hda_power_down_pm(codec);
3430 EXPORT_SYMBOL_GPL(snd_hda_check_amp_list_power);
3438 * snd_hda_input_mux_info_info - Info callback helper for the input-mux enum
3439 * @imux: imux helper object
3440 * @uinfo: pointer to get/store the data
3442 int snd_hda_input_mux_info(const struct hda_input_mux *imux,
3443 struct snd_ctl_elem_info *uinfo)
3447 uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
3449 uinfo->value.enumerated.items = imux->num_items;
3450 if (!imux->num_items)
3452 index = uinfo->value.enumerated.item;
3453 if (index >= imux->num_items)
3454 index = imux->num_items - 1;
3455 strcpy(uinfo->value.enumerated.name, imux->items[index].label);
3458 EXPORT_SYMBOL_GPL(snd_hda_input_mux_info);
3461 * snd_hda_input_mux_info_put - Put callback helper for the input-mux enum
3462 * @codec: the HDA codec
3463 * @imux: imux helper object
3464 * @ucontrol: pointer to get/store the data
3465 * @nid: input mux NID
3466 * @cur_val: pointer to get/store the current imux value
3468 int snd_hda_input_mux_put(struct hda_codec *codec,
3469 const struct hda_input_mux *imux,
3470 struct snd_ctl_elem_value *ucontrol,
3472 unsigned int *cur_val)
3476 if (!imux->num_items)
3478 idx = ucontrol->value.enumerated.item[0];
3479 if (idx >= imux->num_items)
3480 idx = imux->num_items - 1;
3481 if (*cur_val == idx)
3483 snd_hda_codec_write_cache(codec, nid, 0, AC_VERB_SET_CONNECT_SEL,
3484 imux->items[idx].index);
3488 EXPORT_SYMBOL_GPL(snd_hda_input_mux_put);
3492 * snd_hda_enum_helper_info - Helper for simple enum ctls
3493 * @kcontrol: ctl element
3494 * @uinfo: pointer to get/store the data
3495 * @num_items: number of enum items
3496 * @texts: enum item string array
3498 * process kcontrol info callback of a simple string enum array
3499 * when @num_items is 0 or @texts is NULL, assume a boolean enum array
3501 int snd_hda_enum_helper_info(struct snd_kcontrol *kcontrol,
3502 struct snd_ctl_elem_info *uinfo,
3503 int num_items, const char * const *texts)
3505 static const char * const texts_default[] = {
3506 "Disabled", "Enabled"
3509 if (!texts || !num_items) {
3511 texts = texts_default;
3514 return snd_ctl_enum_info(uinfo, 1, num_items, texts);
3516 EXPORT_SYMBOL_GPL(snd_hda_enum_helper_info);
3519 * Multi-channel / digital-out PCM helper functions
3522 /* setup SPDIF output stream */
3523 static void setup_dig_out_stream(struct hda_codec *codec, hda_nid_t nid,
3524 unsigned int stream_tag, unsigned int format)
3526 struct hda_spdif_out *spdif;
3527 unsigned int curr_fmt;
3530 spdif = snd_hda_spdif_out_of_nid(codec, nid);
3531 /* Add sanity check to pass klockwork check.
3532 * This should never happen.
3534 if (WARN_ON(spdif == NULL))
3537 curr_fmt = snd_hda_codec_read(codec, nid, 0,
3538 AC_VERB_GET_STREAM_FORMAT, 0);
3539 reset = codec->spdif_status_reset &&
3540 (spdif->ctls & AC_DIG1_ENABLE) &&
3543 /* turn off SPDIF if needed; otherwise the IEC958 bits won't be
3546 set_dig_out_convert(codec, nid,
3547 spdif->ctls & ~AC_DIG1_ENABLE & 0xff,
3549 snd_hda_codec_setup_stream(codec, nid, stream_tag, 0, format);
3550 if (codec->slave_dig_outs) {
3552 for (d = codec->slave_dig_outs; *d; d++)
3553 snd_hda_codec_setup_stream(codec, *d, stream_tag, 0,
3556 /* turn on again (if needed) */
3558 set_dig_out_convert(codec, nid,
3559 spdif->ctls & 0xff, -1);
3562 static void cleanup_dig_out_stream(struct hda_codec *codec, hda_nid_t nid)
3564 snd_hda_codec_cleanup_stream(codec, nid);
3565 if (codec->slave_dig_outs) {
3567 for (d = codec->slave_dig_outs; *d; d++)
3568 snd_hda_codec_cleanup_stream(codec, *d);
3573 * snd_hda_multi_out_dig_open - open the digital out in the exclusive mode
3574 * @codec: the HDA codec
3575 * @mout: hda_multi_out object
3577 int snd_hda_multi_out_dig_open(struct hda_codec *codec,
3578 struct hda_multi_out *mout)
3580 mutex_lock(&codec->spdif_mutex);
3581 if (mout->dig_out_used == HDA_DIG_ANALOG_DUP)
3582 /* already opened as analog dup; reset it once */
3583 cleanup_dig_out_stream(codec, mout->dig_out_nid);
3584 mout->dig_out_used = HDA_DIG_EXCLUSIVE;
3585 mutex_unlock(&codec->spdif_mutex);
3588 EXPORT_SYMBOL_GPL(snd_hda_multi_out_dig_open);
3591 * snd_hda_multi_out_dig_prepare - prepare the digital out stream
3592 * @codec: the HDA codec
3593 * @mout: hda_multi_out object
3594 * @stream_tag: stream tag to assign
3595 * @format: format id to assign
3596 * @substream: PCM substream to assign
3598 int snd_hda_multi_out_dig_prepare(struct hda_codec *codec,
3599 struct hda_multi_out *mout,
3600 unsigned int stream_tag,
3601 unsigned int format,
3602 struct snd_pcm_substream *substream)
3604 mutex_lock(&codec->spdif_mutex);
3605 setup_dig_out_stream(codec, mout->dig_out_nid, stream_tag, format);
3606 mutex_unlock(&codec->spdif_mutex);
3609 EXPORT_SYMBOL_GPL(snd_hda_multi_out_dig_prepare);
3612 * snd_hda_multi_out_dig_cleanup - clean-up the digital out stream
3613 * @codec: the HDA codec
3614 * @mout: hda_multi_out object
3616 int snd_hda_multi_out_dig_cleanup(struct hda_codec *codec,
3617 struct hda_multi_out *mout)
3619 mutex_lock(&codec->spdif_mutex);
3620 cleanup_dig_out_stream(codec, mout->dig_out_nid);
3621 mutex_unlock(&codec->spdif_mutex);
3624 EXPORT_SYMBOL_GPL(snd_hda_multi_out_dig_cleanup);
3627 * snd_hda_multi_out_dig_close - release the digital out stream
3628 * @codec: the HDA codec
3629 * @mout: hda_multi_out object
3631 int snd_hda_multi_out_dig_close(struct hda_codec *codec,
3632 struct hda_multi_out *mout)
3634 mutex_lock(&codec->spdif_mutex);
3635 mout->dig_out_used = 0;
3636 mutex_unlock(&codec->spdif_mutex);
3639 EXPORT_SYMBOL_GPL(snd_hda_multi_out_dig_close);
3642 * snd_hda_multi_out_analog_open - open analog outputs
3643 * @codec: the HDA codec
3644 * @mout: hda_multi_out object
3645 * @substream: PCM substream to assign
3646 * @hinfo: PCM information to assign
3648 * Open analog outputs and set up the hw-constraints.
3649 * If the digital outputs can be opened as slave, open the digital
3652 int snd_hda_multi_out_analog_open(struct hda_codec *codec,
3653 struct hda_multi_out *mout,
3654 struct snd_pcm_substream *substream,
3655 struct hda_pcm_stream *hinfo)
3657 struct snd_pcm_runtime *runtime = substream->runtime;
3658 runtime->hw.channels_max = mout->max_channels;
3659 if (mout->dig_out_nid) {
3660 if (!mout->analog_rates) {
3661 mout->analog_rates = hinfo->rates;
3662 mout->analog_formats = hinfo->formats;
3663 mout->analog_maxbps = hinfo->maxbps;
3665 runtime->hw.rates = mout->analog_rates;
3666 runtime->hw.formats = mout->analog_formats;
3667 hinfo->maxbps = mout->analog_maxbps;
3669 if (!mout->spdif_rates) {
3670 snd_hda_query_supported_pcm(codec, mout->dig_out_nid,
3672 &mout->spdif_formats,
3673 &mout->spdif_maxbps);
3675 mutex_lock(&codec->spdif_mutex);
3676 if (mout->share_spdif) {
3677 if ((runtime->hw.rates & mout->spdif_rates) &&
3678 (runtime->hw.formats & mout->spdif_formats)) {
3679 runtime->hw.rates &= mout->spdif_rates;
3680 runtime->hw.formats &= mout->spdif_formats;
3681 if (mout->spdif_maxbps < hinfo->maxbps)
3682 hinfo->maxbps = mout->spdif_maxbps;
3684 mout->share_spdif = 0;
3685 /* FIXME: need notify? */
3688 mutex_unlock(&codec->spdif_mutex);
3690 return snd_pcm_hw_constraint_step(substream->runtime, 0,
3691 SNDRV_PCM_HW_PARAM_CHANNELS, 2);
3693 EXPORT_SYMBOL_GPL(snd_hda_multi_out_analog_open);
3696 * snd_hda_multi_out_analog_prepare - Preapre the analog outputs.
3697 * @codec: the HDA codec
3698 * @mout: hda_multi_out object
3699 * @stream_tag: stream tag to assign
3700 * @format: format id to assign
3701 * @substream: PCM substream to assign
3703 * Set up the i/o for analog out.
3704 * When the digital out is available, copy the front out to digital out, too.
3706 int snd_hda_multi_out_analog_prepare(struct hda_codec *codec,
3707 struct hda_multi_out *mout,
3708 unsigned int stream_tag,
3709 unsigned int format,
3710 struct snd_pcm_substream *substream)
3712 const hda_nid_t *nids = mout->dac_nids;
3713 int chs = substream->runtime->channels;
3714 struct hda_spdif_out *spdif;
3717 mutex_lock(&codec->spdif_mutex);
3718 spdif = snd_hda_spdif_out_of_nid(codec, mout->dig_out_nid);
3719 if (mout->dig_out_nid && mout->share_spdif &&
3720 mout->dig_out_used != HDA_DIG_EXCLUSIVE) {
3721 if (chs == 2 && spdif != NULL &&
3722 snd_hda_is_supported_format(codec, mout->dig_out_nid,
3724 !(spdif->status & IEC958_AES0_NONAUDIO)) {
3725 mout->dig_out_used = HDA_DIG_ANALOG_DUP;
3726 setup_dig_out_stream(codec, mout->dig_out_nid,
3727 stream_tag, format);
3729 mout->dig_out_used = 0;
3730 cleanup_dig_out_stream(codec, mout->dig_out_nid);
3733 mutex_unlock(&codec->spdif_mutex);
3736 snd_hda_codec_setup_stream(codec, nids[HDA_FRONT], stream_tag,
3738 if (!mout->no_share_stream &&
3739 mout->hp_nid && mout->hp_nid != nids[HDA_FRONT])
3740 /* headphone out will just decode front left/right (stereo) */
3741 snd_hda_codec_setup_stream(codec, mout->hp_nid, stream_tag,
3743 /* extra outputs copied from front */
3744 for (i = 0; i < ARRAY_SIZE(mout->hp_out_nid); i++)
3745 if (!mout->no_share_stream && mout->hp_out_nid[i])
3746 snd_hda_codec_setup_stream(codec,
3747 mout->hp_out_nid[i],
3748 stream_tag, 0, format);
3751 for (i = 1; i < mout->num_dacs; i++) {
3752 if (chs >= (i + 1) * 2) /* independent out */
3753 snd_hda_codec_setup_stream(codec, nids[i], stream_tag,
3755 else if (!mout->no_share_stream) /* copy front */
3756 snd_hda_codec_setup_stream(codec, nids[i], stream_tag,
3760 /* extra surrounds */
3761 for (i = 0; i < ARRAY_SIZE(mout->extra_out_nid); i++) {
3763 if (!mout->extra_out_nid[i])
3765 if (chs >= (i + 1) * 2)
3767 else if (!mout->no_share_stream)
3769 snd_hda_codec_setup_stream(codec, mout->extra_out_nid[i],
3770 stream_tag, ch, format);
3775 EXPORT_SYMBOL_GPL(snd_hda_multi_out_analog_prepare);
3778 * snd_hda_multi_out_analog_cleanup - clean up the setting for analog out
3779 * @codec: the HDA codec
3780 * @mout: hda_multi_out object
3782 int snd_hda_multi_out_analog_cleanup(struct hda_codec *codec,
3783 struct hda_multi_out *mout)
3785 const hda_nid_t *nids = mout->dac_nids;
3788 for (i = 0; i < mout->num_dacs; i++)
3789 snd_hda_codec_cleanup_stream(codec, nids[i]);
3791 snd_hda_codec_cleanup_stream(codec, mout->hp_nid);
3792 for (i = 0; i < ARRAY_SIZE(mout->hp_out_nid); i++)
3793 if (mout->hp_out_nid[i])
3794 snd_hda_codec_cleanup_stream(codec,
3795 mout->hp_out_nid[i]);
3796 for (i = 0; i < ARRAY_SIZE(mout->extra_out_nid); i++)
3797 if (mout->extra_out_nid[i])
3798 snd_hda_codec_cleanup_stream(codec,
3799 mout->extra_out_nid[i]);
3800 mutex_lock(&codec->spdif_mutex);
3801 if (mout->dig_out_nid && mout->dig_out_used == HDA_DIG_ANALOG_DUP) {
3802 cleanup_dig_out_stream(codec, mout->dig_out_nid);
3803 mout->dig_out_used = 0;
3805 mutex_unlock(&codec->spdif_mutex);
3808 EXPORT_SYMBOL_GPL(snd_hda_multi_out_analog_cleanup);
3811 * snd_hda_get_default_vref - Get the default (mic) VREF pin bits
3812 * @codec: the HDA codec
3813 * @pin: referred pin NID
3815 * Guess the suitable VREF pin bits to be set as the pin-control value.
3816 * Note: the function doesn't set the AC_PINCTL_IN_EN bit.
3818 unsigned int snd_hda_get_default_vref(struct hda_codec *codec, hda_nid_t pin)
3820 unsigned int pincap;
3821 unsigned int oldval;
3822 oldval = snd_hda_codec_read(codec, pin, 0,
3823 AC_VERB_GET_PIN_WIDGET_CONTROL, 0);
3824 pincap = snd_hda_query_pin_caps(codec, pin);
3825 pincap = (pincap & AC_PINCAP_VREF) >> AC_PINCAP_VREF_SHIFT;
3826 /* Exception: if the default pin setup is vref50, we give it priority */
3827 if ((pincap & AC_PINCAP_VREF_80) && oldval != PIN_VREF50)
3828 return AC_PINCTL_VREF_80;
3829 else if (pincap & AC_PINCAP_VREF_50)
3830 return AC_PINCTL_VREF_50;
3831 else if (pincap & AC_PINCAP_VREF_100)
3832 return AC_PINCTL_VREF_100;
3833 else if (pincap & AC_PINCAP_VREF_GRD)
3834 return AC_PINCTL_VREF_GRD;
3835 return AC_PINCTL_VREF_HIZ;
3837 EXPORT_SYMBOL_GPL(snd_hda_get_default_vref);
3840 * snd_hda_correct_pin_ctl - correct the pin ctl value for matching with the pin cap
3841 * @codec: the HDA codec
3842 * @pin: referred pin NID
3843 * @val: pin ctl value to audit
3845 unsigned int snd_hda_correct_pin_ctl(struct hda_codec *codec,
3846 hda_nid_t pin, unsigned int val)
3848 static unsigned int cap_lists[][2] = {
3849 { AC_PINCTL_VREF_100, AC_PINCAP_VREF_100 },
3850 { AC_PINCTL_VREF_80, AC_PINCAP_VREF_80 },
3851 { AC_PINCTL_VREF_50, AC_PINCAP_VREF_50 },
3852 { AC_PINCTL_VREF_GRD, AC_PINCAP_VREF_GRD },
3858 cap = snd_hda_query_pin_caps(codec, pin);
3860 return val; /* don't know what to do... */
3862 if (val & AC_PINCTL_OUT_EN) {
3863 if (!(cap & AC_PINCAP_OUT))
3864 val &= ~(AC_PINCTL_OUT_EN | AC_PINCTL_HP_EN);
3865 else if ((val & AC_PINCTL_HP_EN) && !(cap & AC_PINCAP_HP_DRV))
3866 val &= ~AC_PINCTL_HP_EN;
3869 if (val & AC_PINCTL_IN_EN) {
3870 if (!(cap & AC_PINCAP_IN))
3871 val &= ~(AC_PINCTL_IN_EN | AC_PINCTL_VREFEN);
3873 unsigned int vcap, vref;
3875 vcap = (cap & AC_PINCAP_VREF) >> AC_PINCAP_VREF_SHIFT;
3876 vref = val & AC_PINCTL_VREFEN;
3877 for (i = 0; i < ARRAY_SIZE(cap_lists); i++) {
3878 if (vref == cap_lists[i][0] &&
3879 !(vcap & cap_lists[i][1])) {
3880 if (i == ARRAY_SIZE(cap_lists) - 1)
3881 vref = AC_PINCTL_VREF_HIZ;
3883 vref = cap_lists[i + 1][0];
3886 val &= ~AC_PINCTL_VREFEN;
3893 EXPORT_SYMBOL_GPL(snd_hda_correct_pin_ctl);
3896 * _snd_hda_pin_ctl - Helper to set pin ctl value
3897 * @codec: the HDA codec
3898 * @pin: referred pin NID
3899 * @val: pin control value to set
3900 * @cached: access over codec pinctl cache or direct write
3902 * This function is a helper to set a pin ctl value more safely.
3903 * It corrects the pin ctl value via snd_hda_correct_pin_ctl(), stores the
3904 * value in pin target array via snd_hda_codec_set_pin_target(), then
3905 * actually writes the value via either snd_hda_codec_write_cache() or
3906 * snd_hda_codec_write() depending on @cached flag.
3908 int _snd_hda_set_pin_ctl(struct hda_codec *codec, hda_nid_t pin,
3909 unsigned int val, bool cached)
3911 val = snd_hda_correct_pin_ctl(codec, pin, val);
3912 snd_hda_codec_set_pin_target(codec, pin, val);
3914 return snd_hda_codec_write_cache(codec, pin, 0,
3915 AC_VERB_SET_PIN_WIDGET_CONTROL, val);
3917 return snd_hda_codec_write(codec, pin, 0,
3918 AC_VERB_SET_PIN_WIDGET_CONTROL, val);
3920 EXPORT_SYMBOL_GPL(_snd_hda_set_pin_ctl);
3923 * snd_hda_add_imux_item - Add an item to input_mux
3924 * @codec: the HDA codec
3925 * @imux: imux helper object
3926 * @label: the name of imux item to assign
3927 * @index: index number of imux item to assign
3928 * @type_idx: pointer to store the resultant label index
3930 * When the same label is used already in the existing items, the number
3931 * suffix is appended to the label. This label index number is stored
3932 * to type_idx when non-NULL pointer is given.
3934 int snd_hda_add_imux_item(struct hda_codec *codec,
3935 struct hda_input_mux *imux, const char *label,
3936 int index, int *type_idx)
3938 int i, label_idx = 0;
3939 if (imux->num_items >= HDA_MAX_NUM_INPUTS) {
3940 codec_err(codec, "hda_codec: Too many imux items!\n");
3943 for (i = 0; i < imux->num_items; i++) {
3944 if (!strncmp(label, imux->items[i].label, strlen(label)))
3948 *type_idx = label_idx;
3950 snprintf(imux->items[imux->num_items].label,
3951 sizeof(imux->items[imux->num_items].label),
3952 "%s %d", label, label_idx);
3954 strlcpy(imux->items[imux->num_items].label, label,
3955 sizeof(imux->items[imux->num_items].label));
3956 imux->items[imux->num_items].index = index;
3960 EXPORT_SYMBOL_GPL(snd_hda_add_imux_item);
3963 * snd_hda_bus_reset_codecs - Reset the bus
3964 * @bus: HD-audio bus
3966 void snd_hda_bus_reset_codecs(struct hda_bus *bus)
3968 struct hda_codec *codec;
3970 list_for_each_codec(codec, bus) {
3971 /* FIXME: maybe a better way needed for forced reset */
3972 if (current_work() != &codec->jackpoll_work.work)
3973 cancel_delayed_work_sync(&codec->jackpoll_work);
3975 if (hda_codec_is_power_on(codec)) {
3976 hda_call_codec_suspend(codec);
3977 hda_call_codec_resume(codec);
3984 * snd_print_pcm_bits - Print the supported PCM fmt bits to the string buffer
3985 * @pcm: PCM caps bits
3986 * @buf: the string buffer to write
3987 * @buflen: the max buffer length
3989 * used by hda_proc.c and hda_eld.c
3991 void snd_print_pcm_bits(int pcm, char *buf, int buflen)
3993 static unsigned int bits[] = { 8, 16, 20, 24, 32 };
3996 for (i = 0, j = 0; i < ARRAY_SIZE(bits); i++)
3997 if (pcm & (AC_SUPPCM_BITS_8 << i))
3998 j += snprintf(buf + j, buflen - j, " %d", bits[i]);
4000 buf[j] = '\0'; /* necessary when j == 0 */
4002 EXPORT_SYMBOL_GPL(snd_print_pcm_bits);
4004 MODULE_DESCRIPTION("HDA codec core");
4005 MODULE_LICENSE("GPL");