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 snd_hda_register_beep_device(codec);
817 codec_display_power(codec, true);
818 pm_runtime_enable(hda_codec_dev(codec));
819 /* it was powered up in snd_hda_codec_new(), now all done */
820 snd_hda_power_down(codec);
821 codec->registered = 1;
825 static int snd_hda_codec_dev_register(struct snd_device *device)
827 snd_hda_codec_register(device->device_data);
831 static int snd_hda_codec_dev_disconnect(struct snd_device *device)
833 struct hda_codec *codec = device->device_data;
835 snd_hda_detach_beep_device(codec);
839 static int snd_hda_codec_dev_free(struct snd_device *device)
841 struct hda_codec *codec = device->device_data;
843 codec->in_freeing = 1;
844 snd_hdac_device_unregister(&codec->core);
845 codec_display_power(codec, false);
846 put_device(hda_codec_dev(codec));
850 static void snd_hda_codec_dev_release(struct device *dev)
852 struct hda_codec *codec = dev_to_hda_codec(dev);
854 free_init_pincfgs(codec);
855 snd_hdac_device_exit(&codec->core);
856 snd_hda_sysfs_clear(codec);
857 kfree(codec->modelname);
862 #define DEV_NAME_LEN 31
864 static int snd_hda_codec_device_init(struct hda_bus *bus, struct snd_card *card,
865 unsigned int codec_addr, struct hda_codec **codecp)
867 char name[DEV_NAME_LEN];
868 struct hda_codec *codec;
871 dev_dbg(card->dev, "%s: entry\n", __func__);
873 if (snd_BUG_ON(!bus))
875 if (snd_BUG_ON(codec_addr > HDA_MAX_CODEC_ADDRESS))
878 codec = kzalloc(sizeof(*codec), GFP_KERNEL);
882 sprintf(name, "hdaudioC%dD%d", card->number, codec_addr);
883 err = snd_hdac_device_init(&codec->core, &bus->core, name, codec_addr);
889 codec->core.type = HDA_DEV_LEGACY;
896 * snd_hda_codec_new - create a HDA codec
897 * @bus: the bus to assign
898 * @codec_addr: the codec address
899 * @codecp: the pointer to store the generated codec
901 * Returns 0 if successful, or a negative error code.
903 int snd_hda_codec_new(struct hda_bus *bus, struct snd_card *card,
904 unsigned int codec_addr, struct hda_codec **codecp)
908 ret = snd_hda_codec_device_init(bus, card, codec_addr, codecp);
912 return snd_hda_codec_device_new(bus, card, codec_addr, *codecp);
914 EXPORT_SYMBOL_GPL(snd_hda_codec_new);
916 int snd_hda_codec_device_new(struct hda_bus *bus, struct snd_card *card,
917 unsigned int codec_addr, struct hda_codec *codec)
922 static struct snd_device_ops dev_ops = {
923 .dev_register = snd_hda_codec_dev_register,
924 .dev_disconnect = snd_hda_codec_dev_disconnect,
925 .dev_free = snd_hda_codec_dev_free,
928 dev_dbg(card->dev, "%s: entry\n", __func__);
930 if (snd_BUG_ON(!bus))
932 if (snd_BUG_ON(codec_addr > HDA_MAX_CODEC_ADDRESS))
935 codec->core.dev.release = snd_hda_codec_dev_release;
936 codec->core.exec_verb = codec_exec_verb;
940 codec->addr = codec_addr;
941 mutex_init(&codec->spdif_mutex);
942 mutex_init(&codec->control_mutex);
943 snd_array_init(&codec->mixers, sizeof(struct hda_nid_item), 32);
944 snd_array_init(&codec->nids, sizeof(struct hda_nid_item), 32);
945 snd_array_init(&codec->init_pins, sizeof(struct hda_pincfg), 16);
946 snd_array_init(&codec->driver_pins, sizeof(struct hda_pincfg), 16);
947 snd_array_init(&codec->cvt_setups, sizeof(struct hda_cvt_setup), 8);
948 snd_array_init(&codec->spdif_out, sizeof(struct hda_spdif_out), 16);
949 snd_array_init(&codec->jacktbl, sizeof(struct hda_jack_tbl), 16);
950 snd_array_init(&codec->verbs, sizeof(struct hda_verb *), 8);
951 INIT_LIST_HEAD(&codec->conn_list);
952 INIT_LIST_HEAD(&codec->pcm_list_head);
954 INIT_DELAYED_WORK(&codec->jackpoll_work, hda_jackpoll_work);
955 codec->depop_delay = -1;
956 codec->fixup_id = HDA_FIXUP_ID_NOT_SET;
959 codec->power_jiffies = jiffies;
962 snd_hda_sysfs_init(codec);
964 if (codec->bus->modelname) {
965 codec->modelname = kstrdup(codec->bus->modelname, GFP_KERNEL);
966 if (!codec->modelname) {
972 fg = codec->core.afg ? codec->core.afg : codec->core.mfg;
973 err = read_widget_caps(codec, fg);
976 err = read_pin_defaults(codec);
980 /* power-up all before initialization */
981 hda_set_power_state(codec, AC_PWRST_D0);
983 snd_hda_codec_proc_new(codec);
985 snd_hda_create_hwdep(codec);
987 sprintf(component, "HDA:%08x,%08x,%08x", codec->core.vendor_id,
988 codec->core.subsystem_id, codec->core.revision_id);
989 snd_component_add(card, component);
991 err = snd_device_new(card, SNDRV_DEV_CODEC, codec, &dev_ops);
998 put_device(hda_codec_dev(codec));
1001 EXPORT_SYMBOL_GPL(snd_hda_codec_device_new);
1004 * snd_hda_codec_update_widgets - Refresh widget caps and pin defaults
1005 * @codec: the HDA codec
1007 * Forcibly refresh the all widget caps and the init pin configurations of
1010 int snd_hda_codec_update_widgets(struct hda_codec *codec)
1015 err = snd_hdac_refresh_widgets(&codec->core, true);
1019 /* Assume the function group node does not change,
1020 * only the widget nodes may change.
1022 kfree(codec->wcaps);
1023 fg = codec->core.afg ? codec->core.afg : codec->core.mfg;
1024 err = read_widget_caps(codec, fg);
1028 snd_array_free(&codec->init_pins);
1029 err = read_pin_defaults(codec);
1033 EXPORT_SYMBOL_GPL(snd_hda_codec_update_widgets);
1035 /* update the stream-id if changed */
1036 static void update_pcm_stream_id(struct hda_codec *codec,
1037 struct hda_cvt_setup *p, hda_nid_t nid,
1038 u32 stream_tag, int channel_id)
1040 unsigned int oldval, newval;
1042 if (p->stream_tag != stream_tag || p->channel_id != channel_id) {
1043 oldval = snd_hda_codec_read(codec, nid, 0, AC_VERB_GET_CONV, 0);
1044 newval = (stream_tag << 4) | channel_id;
1045 if (oldval != newval)
1046 snd_hda_codec_write(codec, nid, 0,
1047 AC_VERB_SET_CHANNEL_STREAMID,
1049 p->stream_tag = stream_tag;
1050 p->channel_id = channel_id;
1054 /* update the format-id if changed */
1055 static void update_pcm_format(struct hda_codec *codec, struct hda_cvt_setup *p,
1056 hda_nid_t nid, int format)
1058 unsigned int oldval;
1060 if (p->format_id != format) {
1061 oldval = snd_hda_codec_read(codec, nid, 0,
1062 AC_VERB_GET_STREAM_FORMAT, 0);
1063 if (oldval != format) {
1065 snd_hda_codec_write(codec, nid, 0,
1066 AC_VERB_SET_STREAM_FORMAT,
1069 p->format_id = format;
1074 * snd_hda_codec_setup_stream - set up the codec for streaming
1075 * @codec: the CODEC to set up
1076 * @nid: the NID to set up
1077 * @stream_tag: stream tag to pass, it's between 0x1 and 0xf.
1078 * @channel_id: channel id to pass, zero based.
1079 * @format: stream format.
1081 void snd_hda_codec_setup_stream(struct hda_codec *codec, hda_nid_t nid,
1083 int channel_id, int format)
1085 struct hda_codec *c;
1086 struct hda_cvt_setup *p;
1094 "hda_codec_setup_stream: NID=0x%x, stream=0x%x, channel=%d, format=0x%x\n",
1095 nid, stream_tag, channel_id, format);
1096 p = get_hda_cvt_setup(codec, nid);
1100 if (codec->patch_ops.stream_pm)
1101 codec->patch_ops.stream_pm(codec, nid, true);
1102 if (codec->pcm_format_first)
1103 update_pcm_format(codec, p, nid, format);
1104 update_pcm_stream_id(codec, p, nid, stream_tag, channel_id);
1105 if (!codec->pcm_format_first)
1106 update_pcm_format(codec, p, nid, format);
1111 /* make other inactive cvts with the same stream-tag dirty */
1112 type = get_wcaps_type(get_wcaps(codec, nid));
1113 list_for_each_codec(c, codec->bus) {
1114 snd_array_for_each(&c->cvt_setups, i, p) {
1115 if (!p->active && p->stream_tag == stream_tag &&
1116 get_wcaps_type(get_wcaps(c, p->nid)) == type)
1121 EXPORT_SYMBOL_GPL(snd_hda_codec_setup_stream);
1123 static void really_cleanup_stream(struct hda_codec *codec,
1124 struct hda_cvt_setup *q);
1127 * __snd_hda_codec_cleanup_stream - clean up the codec for closing
1128 * @codec: the CODEC to clean up
1129 * @nid: the NID to clean up
1130 * @do_now: really clean up the stream instead of clearing the active flag
1132 void __snd_hda_codec_cleanup_stream(struct hda_codec *codec, hda_nid_t nid,
1135 struct hda_cvt_setup *p;
1140 if (codec->no_sticky_stream)
1143 codec_dbg(codec, "hda_codec_cleanup_stream: NID=0x%x\n", nid);
1144 p = get_hda_cvt_setup(codec, nid);
1146 /* here we just clear the active flag when do_now isn't set;
1147 * actual clean-ups will be done later in
1148 * purify_inactive_streams() called from snd_hda_codec_prpapre()
1151 really_cleanup_stream(codec, p);
1156 EXPORT_SYMBOL_GPL(__snd_hda_codec_cleanup_stream);
1158 static void really_cleanup_stream(struct hda_codec *codec,
1159 struct hda_cvt_setup *q)
1161 hda_nid_t nid = q->nid;
1162 if (q->stream_tag || q->channel_id)
1163 snd_hda_codec_write(codec, nid, 0, AC_VERB_SET_CHANNEL_STREAMID, 0);
1165 snd_hda_codec_write(codec, nid, 0, AC_VERB_SET_STREAM_FORMAT, 0
1167 memset(q, 0, sizeof(*q));
1169 if (codec->patch_ops.stream_pm)
1170 codec->patch_ops.stream_pm(codec, nid, false);
1173 /* clean up the all conflicting obsolete streams */
1174 static void purify_inactive_streams(struct hda_codec *codec)
1176 struct hda_codec *c;
1177 struct hda_cvt_setup *p;
1180 list_for_each_codec(c, codec->bus) {
1181 snd_array_for_each(&c->cvt_setups, i, p) {
1183 really_cleanup_stream(c, p);
1189 /* clean up all streams; called from suspend */
1190 static void hda_cleanup_all_streams(struct hda_codec *codec)
1192 struct hda_cvt_setup *p;
1195 snd_array_for_each(&codec->cvt_setups, i, p) {
1197 really_cleanup_stream(codec, p);
1203 * amp access functions
1207 * query_amp_caps - query AMP capabilities
1208 * @codec: the HD-auio codec
1209 * @nid: the NID to query
1210 * @direction: either #HDA_INPUT or #HDA_OUTPUT
1212 * Query AMP capabilities for the given widget and direction.
1213 * Returns the obtained capability bits.
1215 * When cap bits have been already read, this doesn't read again but
1216 * returns the cached value.
1218 u32 query_amp_caps(struct hda_codec *codec, hda_nid_t nid, int direction)
1220 if (!(get_wcaps(codec, nid) & AC_WCAP_AMP_OVRD))
1221 nid = codec->core.afg;
1222 return snd_hda_param_read(codec, nid,
1223 direction == HDA_OUTPUT ?
1224 AC_PAR_AMP_OUT_CAP : AC_PAR_AMP_IN_CAP);
1226 EXPORT_SYMBOL_GPL(query_amp_caps);
1229 * snd_hda_check_amp_caps - query AMP capabilities
1230 * @codec: the HD-audio codec
1231 * @nid: the NID to query
1232 * @dir: either #HDA_INPUT or #HDA_OUTPUT
1233 * @bits: bit mask to check the result
1235 * Check whether the widget has the given amp capability for the direction.
1237 bool snd_hda_check_amp_caps(struct hda_codec *codec, hda_nid_t nid,
1238 int dir, unsigned int bits)
1242 if (get_wcaps(codec, nid) & (1 << (dir + 1)))
1243 if (query_amp_caps(codec, nid, dir) & bits)
1247 EXPORT_SYMBOL_GPL(snd_hda_check_amp_caps);
1250 * snd_hda_override_amp_caps - Override the AMP capabilities
1251 * @codec: the CODEC to clean up
1252 * @nid: the NID to clean up
1253 * @dir: either #HDA_INPUT or #HDA_OUTPUT
1254 * @caps: the capability bits to set
1256 * Override the cached AMP caps bits value by the given one.
1257 * This function is useful if the driver needs to adjust the AMP ranges,
1258 * e.g. limit to 0dB, etc.
1260 * Returns zero if successful or a negative error code.
1262 int snd_hda_override_amp_caps(struct hda_codec *codec, hda_nid_t nid, int dir,
1267 snd_hda_override_wcaps(codec, nid,
1268 get_wcaps(codec, nid) | AC_WCAP_AMP_OVRD);
1269 parm = dir == HDA_OUTPUT ? AC_PAR_AMP_OUT_CAP : AC_PAR_AMP_IN_CAP;
1270 return snd_hdac_override_parm(&codec->core, nid, parm, caps);
1272 EXPORT_SYMBOL_GPL(snd_hda_override_amp_caps);
1275 * snd_hda_codec_amp_update - update the AMP mono value
1276 * @codec: HD-audio codec
1277 * @nid: NID to read the AMP value
1278 * @ch: channel to update (0 or 1)
1279 * @dir: #HDA_INPUT or #HDA_OUTPUT
1280 * @idx: the index value (only for input direction)
1281 * @mask: bit mask to set
1282 * @val: the bits value to set
1284 * Update the AMP values for the given channel, direction and index.
1286 int snd_hda_codec_amp_update(struct hda_codec *codec, hda_nid_t nid,
1287 int ch, int dir, int idx, int mask, int val)
1289 unsigned int cmd = snd_hdac_regmap_encode_amp(nid, ch, dir, idx);
1291 /* enable fake mute if no h/w mute but min=mute */
1292 if ((query_amp_caps(codec, nid, dir) &
1293 (AC_AMPCAP_MUTE | AC_AMPCAP_MIN_MUTE)) == AC_AMPCAP_MIN_MUTE)
1294 cmd |= AC_AMP_FAKE_MUTE;
1295 return snd_hdac_regmap_update_raw(&codec->core, cmd, mask, val);
1297 EXPORT_SYMBOL_GPL(snd_hda_codec_amp_update);
1300 * snd_hda_codec_amp_stereo - update the AMP stereo values
1301 * @codec: HD-audio codec
1302 * @nid: NID to read the AMP value
1303 * @direction: #HDA_INPUT or #HDA_OUTPUT
1304 * @idx: the index value (only for input direction)
1305 * @mask: bit mask to set
1306 * @val: the bits value to set
1308 * Update the AMP values like snd_hda_codec_amp_update(), but for a
1309 * stereo widget with the same mask and value.
1311 int snd_hda_codec_amp_stereo(struct hda_codec *codec, hda_nid_t nid,
1312 int direction, int idx, int mask, int val)
1316 if (snd_BUG_ON(mask & ~0xff))
1318 for (ch = 0; ch < 2; ch++)
1319 ret |= snd_hda_codec_amp_update(codec, nid, ch, direction,
1323 EXPORT_SYMBOL_GPL(snd_hda_codec_amp_stereo);
1326 * snd_hda_codec_amp_init - initialize the AMP value
1327 * @codec: the HDA codec
1328 * @nid: NID to read the AMP value
1329 * @ch: channel (left=0 or right=1)
1330 * @dir: #HDA_INPUT or #HDA_OUTPUT
1331 * @idx: the index value (only for input direction)
1332 * @mask: bit mask to set
1333 * @val: the bits value to set
1335 * Works like snd_hda_codec_amp_update() but it writes the value only at
1336 * the first access. If the amp was already initialized / updated beforehand,
1337 * this does nothing.
1339 int snd_hda_codec_amp_init(struct hda_codec *codec, hda_nid_t nid, int ch,
1340 int dir, int idx, int mask, int val)
1344 if (!codec->core.regmap)
1346 regcache_cache_only(codec->core.regmap, true);
1347 orig = snd_hda_codec_amp_read(codec, nid, ch, dir, idx);
1348 regcache_cache_only(codec->core.regmap, false);
1351 return snd_hda_codec_amp_update(codec, nid, ch, dir, idx, mask, val);
1353 EXPORT_SYMBOL_GPL(snd_hda_codec_amp_init);
1356 * snd_hda_codec_amp_init_stereo - initialize the stereo AMP value
1357 * @codec: the HDA codec
1358 * @nid: NID to read the AMP value
1359 * @dir: #HDA_INPUT or #HDA_OUTPUT
1360 * @idx: the index value (only for input direction)
1361 * @mask: bit mask to set
1362 * @val: the bits value to set
1364 * Call snd_hda_codec_amp_init() for both stereo channels.
1366 int snd_hda_codec_amp_init_stereo(struct hda_codec *codec, hda_nid_t nid,
1367 int dir, int idx, int mask, int val)
1371 if (snd_BUG_ON(mask & ~0xff))
1373 for (ch = 0; ch < 2; ch++)
1374 ret |= snd_hda_codec_amp_init(codec, nid, ch, dir,
1378 EXPORT_SYMBOL_GPL(snd_hda_codec_amp_init_stereo);
1380 static u32 get_amp_max_value(struct hda_codec *codec, hda_nid_t nid, int dir,
1383 u32 caps = query_amp_caps(codec, nid, dir);
1385 caps = (caps & AC_AMPCAP_NUM_STEPS) >> AC_AMPCAP_NUM_STEPS_SHIFT;
1392 * snd_hda_mixer_amp_volume_info - Info callback for a standard AMP mixer
1393 * @kcontrol: referred ctl element
1394 * @uinfo: pointer to get/store the data
1396 * The control element is supposed to have the private_value field
1397 * set up via HDA_COMPOSE_AMP_VAL*() or related macros.
1399 int snd_hda_mixer_amp_volume_info(struct snd_kcontrol *kcontrol,
1400 struct snd_ctl_elem_info *uinfo)
1402 struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
1403 u16 nid = get_amp_nid(kcontrol);
1404 u8 chs = get_amp_channels(kcontrol);
1405 int dir = get_amp_direction(kcontrol);
1406 unsigned int ofs = get_amp_offset(kcontrol);
1408 uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
1409 uinfo->count = chs == 3 ? 2 : 1;
1410 uinfo->value.integer.min = 0;
1411 uinfo->value.integer.max = get_amp_max_value(codec, nid, dir, ofs);
1412 if (!uinfo->value.integer.max) {
1414 "num_steps = 0 for NID=0x%x (ctl = %s)\n",
1415 nid, kcontrol->id.name);
1420 EXPORT_SYMBOL_GPL(snd_hda_mixer_amp_volume_info);
1423 static inline unsigned int
1424 read_amp_value(struct hda_codec *codec, hda_nid_t nid,
1425 int ch, int dir, int idx, unsigned int ofs)
1428 val = snd_hda_codec_amp_read(codec, nid, ch, dir, idx);
1429 val &= HDA_AMP_VOLMASK;
1438 update_amp_value(struct hda_codec *codec, hda_nid_t nid,
1439 int ch, int dir, int idx, unsigned int ofs,
1442 unsigned int maxval;
1446 /* ofs = 0: raw max value */
1447 maxval = get_amp_max_value(codec, nid, dir, 0);
1450 return snd_hda_codec_amp_update(codec, nid, ch, dir, idx,
1451 HDA_AMP_VOLMASK, val);
1455 * snd_hda_mixer_amp_volume_get - Get callback for a standard AMP mixer volume
1456 * @kcontrol: ctl element
1457 * @ucontrol: pointer to get/store the data
1459 * The control element is supposed to have the private_value field
1460 * set up via HDA_COMPOSE_AMP_VAL*() or related macros.
1462 int snd_hda_mixer_amp_volume_get(struct snd_kcontrol *kcontrol,
1463 struct snd_ctl_elem_value *ucontrol)
1465 struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
1466 hda_nid_t nid = get_amp_nid(kcontrol);
1467 int chs = get_amp_channels(kcontrol);
1468 int dir = get_amp_direction(kcontrol);
1469 int idx = get_amp_index(kcontrol);
1470 unsigned int ofs = get_amp_offset(kcontrol);
1471 long *valp = ucontrol->value.integer.value;
1474 *valp++ = read_amp_value(codec, nid, 0, dir, idx, ofs);
1476 *valp = read_amp_value(codec, nid, 1, dir, idx, ofs);
1479 EXPORT_SYMBOL_GPL(snd_hda_mixer_amp_volume_get);
1482 * snd_hda_mixer_amp_volume_put - Put callback for a standard AMP mixer volume
1483 * @kcontrol: ctl element
1484 * @ucontrol: pointer to get/store the data
1486 * The control element is supposed to have the private_value field
1487 * set up via HDA_COMPOSE_AMP_VAL*() or related macros.
1489 int snd_hda_mixer_amp_volume_put(struct snd_kcontrol *kcontrol,
1490 struct snd_ctl_elem_value *ucontrol)
1492 struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
1493 hda_nid_t nid = get_amp_nid(kcontrol);
1494 int chs = get_amp_channels(kcontrol);
1495 int dir = get_amp_direction(kcontrol);
1496 int idx = get_amp_index(kcontrol);
1497 unsigned int ofs = get_amp_offset(kcontrol);
1498 long *valp = ucontrol->value.integer.value;
1502 change = update_amp_value(codec, nid, 0, dir, idx, ofs, *valp);
1506 change |= update_amp_value(codec, nid, 1, dir, idx, ofs, *valp);
1509 EXPORT_SYMBOL_GPL(snd_hda_mixer_amp_volume_put);
1511 /* inquiry the amp caps and convert to TLV */
1512 static void get_ctl_amp_tlv(struct snd_kcontrol *kcontrol, unsigned int *tlv)
1514 struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
1515 hda_nid_t nid = get_amp_nid(kcontrol);
1516 int dir = get_amp_direction(kcontrol);
1517 unsigned int ofs = get_amp_offset(kcontrol);
1518 bool min_mute = get_amp_min_mute(kcontrol);
1519 u32 caps, val1, val2;
1521 caps = query_amp_caps(codec, nid, dir);
1522 val2 = (caps & AC_AMPCAP_STEP_SIZE) >> AC_AMPCAP_STEP_SIZE_SHIFT;
1523 val2 = (val2 + 1) * 25;
1524 val1 = -((caps & AC_AMPCAP_OFFSET) >> AC_AMPCAP_OFFSET_SHIFT);
1526 val1 = ((int)val1) * ((int)val2);
1527 if (min_mute || (caps & AC_AMPCAP_MIN_MUTE))
1528 val2 |= TLV_DB_SCALE_MUTE;
1529 tlv[SNDRV_CTL_TLVO_TYPE] = SNDRV_CTL_TLVT_DB_SCALE;
1530 tlv[SNDRV_CTL_TLVO_LEN] = 2 * sizeof(unsigned int);
1531 tlv[SNDRV_CTL_TLVO_DB_SCALE_MIN] = val1;
1532 tlv[SNDRV_CTL_TLVO_DB_SCALE_MUTE_AND_STEP] = val2;
1536 * snd_hda_mixer_amp_tlv - TLV callback for a standard AMP mixer volume
1537 * @kcontrol: ctl element
1538 * @op_flag: operation flag
1539 * @size: byte size of input TLV
1542 * The control element is supposed to have the private_value field
1543 * set up via HDA_COMPOSE_AMP_VAL*() or related macros.
1545 int snd_hda_mixer_amp_tlv(struct snd_kcontrol *kcontrol, int op_flag,
1546 unsigned int size, unsigned int __user *_tlv)
1548 unsigned int tlv[4];
1550 if (size < 4 * sizeof(unsigned int))
1552 get_ctl_amp_tlv(kcontrol, tlv);
1553 if (copy_to_user(_tlv, tlv, sizeof(tlv)))
1557 EXPORT_SYMBOL_GPL(snd_hda_mixer_amp_tlv);
1560 * snd_hda_set_vmaster_tlv - Set TLV for a virtual master control
1561 * @codec: HD-audio codec
1562 * @nid: NID of a reference widget
1563 * @dir: #HDA_INPUT or #HDA_OUTPUT
1564 * @tlv: TLV data to be stored, at least 4 elements
1566 * Set (static) TLV data for a virtual master volume using the AMP caps
1567 * obtained from the reference NID.
1568 * The volume range is recalculated as if the max volume is 0dB.
1570 void snd_hda_set_vmaster_tlv(struct hda_codec *codec, hda_nid_t nid, int dir,
1576 caps = query_amp_caps(codec, nid, dir);
1577 nums = (caps & AC_AMPCAP_NUM_STEPS) >> AC_AMPCAP_NUM_STEPS_SHIFT;
1578 step = (caps & AC_AMPCAP_STEP_SIZE) >> AC_AMPCAP_STEP_SIZE_SHIFT;
1579 step = (step + 1) * 25;
1580 tlv[SNDRV_CTL_TLVO_TYPE] = SNDRV_CTL_TLVT_DB_SCALE;
1581 tlv[SNDRV_CTL_TLVO_LEN] = 2 * sizeof(unsigned int);
1582 tlv[SNDRV_CTL_TLVO_DB_SCALE_MIN] = -nums * step;
1583 tlv[SNDRV_CTL_TLVO_DB_SCALE_MUTE_AND_STEP] = step;
1585 EXPORT_SYMBOL_GPL(snd_hda_set_vmaster_tlv);
1587 /* find a mixer control element with the given name */
1588 static struct snd_kcontrol *
1589 find_mixer_ctl(struct hda_codec *codec, const char *name, int dev, int idx)
1591 struct snd_ctl_elem_id id;
1592 memset(&id, 0, sizeof(id));
1593 id.iface = SNDRV_CTL_ELEM_IFACE_MIXER;
1596 if (snd_BUG_ON(strlen(name) >= sizeof(id.name)))
1598 strcpy(id.name, name);
1599 return snd_ctl_find_id(codec->card, &id);
1603 * snd_hda_find_mixer_ctl - Find a mixer control element with the given name
1604 * @codec: HD-audio codec
1605 * @name: ctl id name string
1607 * Get the control element with the given id string and IFACE_MIXER.
1609 struct snd_kcontrol *snd_hda_find_mixer_ctl(struct hda_codec *codec,
1612 return find_mixer_ctl(codec, name, 0, 0);
1614 EXPORT_SYMBOL_GPL(snd_hda_find_mixer_ctl);
1616 static int find_empty_mixer_ctl_idx(struct hda_codec *codec, const char *name,
1620 /* 16 ctlrs should be large enough */
1621 for (i = 0, idx = start_idx; i < 16; i++, idx++) {
1622 if (!find_mixer_ctl(codec, name, 0, idx))
1629 * snd_hda_ctl_add - Add a control element and assign to the codec
1630 * @codec: HD-audio codec
1631 * @nid: corresponding NID (optional)
1632 * @kctl: the control element to assign
1634 * Add the given control element to an array inside the codec instance.
1635 * All control elements belonging to a codec are supposed to be added
1636 * by this function so that a proper clean-up works at the free or
1637 * reconfiguration time.
1639 * If non-zero @nid is passed, the NID is assigned to the control element.
1640 * The assignment is shown in the codec proc file.
1642 * snd_hda_ctl_add() checks the control subdev id field whether
1643 * #HDA_SUBDEV_NID_FLAG bit is set. If set (and @nid is zero), the lower
1644 * bits value is taken as the NID to assign. The #HDA_NID_ITEM_AMP bit
1645 * specifies if kctl->private_value is a HDA amplifier value.
1647 int snd_hda_ctl_add(struct hda_codec *codec, hda_nid_t nid,
1648 struct snd_kcontrol *kctl)
1651 unsigned short flags = 0;
1652 struct hda_nid_item *item;
1654 if (kctl->id.subdevice & HDA_SUBDEV_AMP_FLAG) {
1655 flags |= HDA_NID_ITEM_AMP;
1657 nid = get_amp_nid_(kctl->private_value);
1659 if ((kctl->id.subdevice & HDA_SUBDEV_NID_FLAG) != 0 && nid == 0)
1660 nid = kctl->id.subdevice & 0xffff;
1661 if (kctl->id.subdevice & (HDA_SUBDEV_NID_FLAG|HDA_SUBDEV_AMP_FLAG))
1662 kctl->id.subdevice = 0;
1663 err = snd_ctl_add(codec->card, kctl);
1666 item = snd_array_new(&codec->mixers);
1671 item->flags = flags;
1674 EXPORT_SYMBOL_GPL(snd_hda_ctl_add);
1677 * snd_hda_add_nid - Assign a NID to a control element
1678 * @codec: HD-audio codec
1679 * @nid: corresponding NID (optional)
1680 * @kctl: the control element to assign
1681 * @index: index to kctl
1683 * Add the given control element to an array inside the codec instance.
1684 * This function is used when #snd_hda_ctl_add cannot be used for 1:1
1685 * NID:KCTL mapping - for example "Capture Source" selector.
1687 int snd_hda_add_nid(struct hda_codec *codec, struct snd_kcontrol *kctl,
1688 unsigned int index, hda_nid_t nid)
1690 struct hda_nid_item *item;
1693 item = snd_array_new(&codec->nids);
1697 item->index = index;
1701 codec_err(codec, "no NID for mapping control %s:%d:%d\n",
1702 kctl->id.name, kctl->id.index, index);
1705 EXPORT_SYMBOL_GPL(snd_hda_add_nid);
1708 * snd_hda_ctls_clear - Clear all controls assigned to the given codec
1709 * @codec: HD-audio codec
1711 void snd_hda_ctls_clear(struct hda_codec *codec)
1714 struct hda_nid_item *items = codec->mixers.list;
1715 for (i = 0; i < codec->mixers.used; i++)
1716 snd_ctl_remove(codec->card, items[i].kctl);
1717 snd_array_free(&codec->mixers);
1718 snd_array_free(&codec->nids);
1722 * snd_hda_lock_devices - pseudo device locking
1725 * toggle card->shutdown to allow/disallow the device access (as a hack)
1727 int snd_hda_lock_devices(struct hda_bus *bus)
1729 struct snd_card *card = bus->card;
1730 struct hda_codec *codec;
1732 spin_lock(&card->files_lock);
1736 if (!list_empty(&card->ctl_files))
1739 list_for_each_codec(codec, bus) {
1740 struct hda_pcm *cpcm;
1741 list_for_each_entry(cpcm, &codec->pcm_list_head, list) {
1744 if (cpcm->pcm->streams[0].substream_opened ||
1745 cpcm->pcm->streams[1].substream_opened)
1749 spin_unlock(&card->files_lock);
1755 spin_unlock(&card->files_lock);
1758 EXPORT_SYMBOL_GPL(snd_hda_lock_devices);
1761 * snd_hda_unlock_devices - pseudo device unlocking
1764 void snd_hda_unlock_devices(struct hda_bus *bus)
1766 struct snd_card *card = bus->card;
1768 spin_lock(&card->files_lock);
1770 spin_unlock(&card->files_lock);
1772 EXPORT_SYMBOL_GPL(snd_hda_unlock_devices);
1775 * snd_hda_codec_reset - Clear all objects assigned to the codec
1776 * @codec: HD-audio codec
1778 * This frees the all PCM and control elements assigned to the codec, and
1779 * clears the caches and restores the pin default configurations.
1781 * When a device is being used, it returns -EBSY. If successfully freed,
1784 int snd_hda_codec_reset(struct hda_codec *codec)
1786 struct hda_bus *bus = codec->bus;
1788 if (snd_hda_lock_devices(bus) < 0)
1791 /* OK, let it free */
1792 snd_hdac_device_unregister(&codec->core);
1794 /* allow device access again */
1795 snd_hda_unlock_devices(bus);
1799 typedef int (*map_slave_func_t)(struct hda_codec *, void *, struct snd_kcontrol *);
1801 /* apply the function to all matching slave ctls in the mixer list */
1802 static int map_slaves(struct hda_codec *codec, const char * const *slaves,
1803 const char *suffix, map_slave_func_t func, void *data)
1805 struct hda_nid_item *items;
1806 const char * const *s;
1809 items = codec->mixers.list;
1810 for (i = 0; i < codec->mixers.used; i++) {
1811 struct snd_kcontrol *sctl = items[i].kctl;
1812 if (!sctl || sctl->id.iface != SNDRV_CTL_ELEM_IFACE_MIXER)
1814 for (s = slaves; *s; s++) {
1815 char tmpname[sizeof(sctl->id.name)];
1816 const char *name = *s;
1818 snprintf(tmpname, sizeof(tmpname), "%s %s",
1822 if (!strcmp(sctl->id.name, name)) {
1823 err = func(codec, data, sctl);
1833 static int check_slave_present(struct hda_codec *codec,
1834 void *data, struct snd_kcontrol *sctl)
1839 /* call kctl->put with the given value(s) */
1840 static int put_kctl_with_value(struct snd_kcontrol *kctl, int val)
1842 struct snd_ctl_elem_value *ucontrol;
1843 ucontrol = kzalloc(sizeof(*ucontrol), GFP_KERNEL);
1846 ucontrol->value.integer.value[0] = val;
1847 ucontrol->value.integer.value[1] = val;
1848 kctl->put(kctl, ucontrol);
1853 struct slave_init_arg {
1854 struct hda_codec *codec;
1858 /* initialize the slave volume with 0dB via snd_ctl_apply_vmaster_slaves() */
1859 static int init_slave_0dB(struct snd_kcontrol *slave,
1860 struct snd_kcontrol *kctl,
1863 struct slave_init_arg *arg = _arg;
1865 const int *tlv = NULL;
1869 if (kctl->vd[0].access & SNDRV_CTL_ELEM_ACCESS_TLV_CALLBACK) {
1870 if (kctl->tlv.c != snd_hda_mixer_amp_tlv) {
1871 codec_err(arg->codec,
1872 "Unexpected TLV callback for slave %s:%d\n",
1873 kctl->id.name, kctl->id.index);
1874 return 0; /* ignore */
1876 get_ctl_amp_tlv(kctl, _tlv);
1878 } else if (kctl->vd[0].access & SNDRV_CTL_ELEM_ACCESS_TLV_READ)
1881 if (!tlv || tlv[SNDRV_CTL_TLVO_TYPE] != SNDRV_CTL_TLVT_DB_SCALE)
1884 step = tlv[SNDRV_CTL_TLVO_DB_SCALE_MUTE_AND_STEP];
1885 step &= ~TLV_DB_SCALE_MUTE;
1888 if (arg->step && arg->step != step) {
1889 codec_err(arg->codec,
1890 "Mismatching dB step for vmaster slave (%d!=%d)\n",
1896 val = -tlv[SNDRV_CTL_TLVO_DB_SCALE_MIN] / step;
1898 put_kctl_with_value(slave, val);
1905 /* unmute the slave via snd_ctl_apply_vmaster_slaves() */
1906 static int init_slave_unmute(struct snd_kcontrol *slave,
1907 struct snd_kcontrol *kctl,
1910 return put_kctl_with_value(slave, 1);
1913 static int add_slave(struct hda_codec *codec,
1914 void *data, struct snd_kcontrol *slave)
1916 return snd_ctl_add_slave(data, slave);
1920 * __snd_hda_add_vmaster - create a virtual master control and add slaves
1921 * @codec: HD-audio codec
1922 * @name: vmaster control name
1923 * @tlv: TLV data (optional)
1924 * @slaves: slave control names (optional)
1925 * @suffix: suffix string to each slave name (optional)
1926 * @init_slave_vol: initialize slaves to unmute/0dB
1927 * @ctl_ret: store the vmaster kcontrol in return
1929 * Create a virtual master control with the given name. The TLV data
1930 * must be either NULL or a valid data.
1932 * @slaves is a NULL-terminated array of strings, each of which is a
1933 * slave control name. All controls with these names are assigned to
1934 * the new virtual master control.
1936 * This function returns zero if successful or a negative error code.
1938 int __snd_hda_add_vmaster(struct hda_codec *codec, char *name,
1939 unsigned int *tlv, const char * const *slaves,
1940 const char *suffix, bool init_slave_vol,
1941 struct snd_kcontrol **ctl_ret)
1943 struct snd_kcontrol *kctl;
1949 err = map_slaves(codec, slaves, suffix, check_slave_present, NULL);
1951 codec_dbg(codec, "No slave found for %s\n", name);
1954 kctl = snd_ctl_make_virtual_master(name, tlv);
1957 err = snd_hda_ctl_add(codec, 0, kctl);
1961 err = map_slaves(codec, slaves, suffix, add_slave, kctl);
1965 /* init with master mute & zero volume */
1966 put_kctl_with_value(kctl, 0);
1967 if (init_slave_vol) {
1968 struct slave_init_arg arg = {
1972 snd_ctl_apply_vmaster_slaves(kctl,
1973 tlv ? init_slave_0dB : init_slave_unmute,
1981 EXPORT_SYMBOL_GPL(__snd_hda_add_vmaster);
1984 * mute-LED control using vmaster
1986 static int vmaster_mute_mode_info(struct snd_kcontrol *kcontrol,
1987 struct snd_ctl_elem_info *uinfo)
1989 static const char * const texts[] = {
1990 "On", "Off", "Follow Master"
1993 return snd_ctl_enum_info(uinfo, 1, 3, texts);
1996 static int vmaster_mute_mode_get(struct snd_kcontrol *kcontrol,
1997 struct snd_ctl_elem_value *ucontrol)
1999 struct hda_vmaster_mute_hook *hook = snd_kcontrol_chip(kcontrol);
2000 ucontrol->value.enumerated.item[0] = hook->mute_mode;
2004 static int vmaster_mute_mode_put(struct snd_kcontrol *kcontrol,
2005 struct snd_ctl_elem_value *ucontrol)
2007 struct hda_vmaster_mute_hook *hook = snd_kcontrol_chip(kcontrol);
2008 unsigned int old_mode = hook->mute_mode;
2010 hook->mute_mode = ucontrol->value.enumerated.item[0];
2011 if (hook->mute_mode > HDA_VMUTE_FOLLOW_MASTER)
2012 hook->mute_mode = HDA_VMUTE_FOLLOW_MASTER;
2013 if (old_mode == hook->mute_mode)
2015 snd_hda_sync_vmaster_hook(hook);
2019 static const struct snd_kcontrol_new vmaster_mute_mode = {
2020 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
2021 .name = "Mute-LED Mode",
2022 .info = vmaster_mute_mode_info,
2023 .get = vmaster_mute_mode_get,
2024 .put = vmaster_mute_mode_put,
2027 /* meta hook to call each driver's vmaster hook */
2028 static void vmaster_hook(void *private_data, int enabled)
2030 struct hda_vmaster_mute_hook *hook = private_data;
2032 if (hook->mute_mode != HDA_VMUTE_FOLLOW_MASTER)
2033 enabled = hook->mute_mode;
2034 hook->hook(hook->codec, enabled);
2038 * snd_hda_add_vmaster_hook - Add a vmaster hook for mute-LED
2039 * @codec: the HDA codec
2040 * @hook: the vmaster hook object
2041 * @expose_enum_ctl: flag to create an enum ctl
2043 * Add a mute-LED hook with the given vmaster switch kctl.
2044 * When @expose_enum_ctl is set, "Mute-LED Mode" control is automatically
2045 * created and associated with the given hook.
2047 int snd_hda_add_vmaster_hook(struct hda_codec *codec,
2048 struct hda_vmaster_mute_hook *hook,
2049 bool expose_enum_ctl)
2051 struct snd_kcontrol *kctl;
2053 if (!hook->hook || !hook->sw_kctl)
2055 hook->codec = codec;
2056 hook->mute_mode = HDA_VMUTE_FOLLOW_MASTER;
2057 snd_ctl_add_vmaster_hook(hook->sw_kctl, vmaster_hook, hook);
2058 if (!expose_enum_ctl)
2060 kctl = snd_ctl_new1(&vmaster_mute_mode, hook);
2063 return snd_hda_ctl_add(codec, 0, kctl);
2065 EXPORT_SYMBOL_GPL(snd_hda_add_vmaster_hook);
2068 * snd_hda_sync_vmaster_hook - Sync vmaster hook
2069 * @hook: the vmaster hook
2071 * Call the hook with the current value for synchronization.
2072 * Should be called in init callback.
2074 void snd_hda_sync_vmaster_hook(struct hda_vmaster_mute_hook *hook)
2076 if (!hook->hook || !hook->codec)
2078 /* don't call vmaster hook in the destructor since it might have
2079 * been already destroyed
2081 if (hook->codec->bus->shutdown)
2083 snd_ctl_sync_vmaster_hook(hook->sw_kctl);
2085 EXPORT_SYMBOL_GPL(snd_hda_sync_vmaster_hook);
2089 * snd_hda_mixer_amp_switch_info - Info callback for a standard AMP mixer switch
2090 * @kcontrol: referred ctl element
2091 * @uinfo: pointer to get/store the data
2093 * The control element is supposed to have the private_value field
2094 * set up via HDA_COMPOSE_AMP_VAL*() or related macros.
2096 int snd_hda_mixer_amp_switch_info(struct snd_kcontrol *kcontrol,
2097 struct snd_ctl_elem_info *uinfo)
2099 int chs = get_amp_channels(kcontrol);
2101 uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN;
2102 uinfo->count = chs == 3 ? 2 : 1;
2103 uinfo->value.integer.min = 0;
2104 uinfo->value.integer.max = 1;
2107 EXPORT_SYMBOL_GPL(snd_hda_mixer_amp_switch_info);
2110 * snd_hda_mixer_amp_switch_get - Get callback for a standard AMP mixer switch
2111 * @kcontrol: ctl element
2112 * @ucontrol: pointer to get/store the data
2114 * The control element is supposed to have the private_value field
2115 * set up via HDA_COMPOSE_AMP_VAL*() or related macros.
2117 int snd_hda_mixer_amp_switch_get(struct snd_kcontrol *kcontrol,
2118 struct snd_ctl_elem_value *ucontrol)
2120 struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
2121 hda_nid_t nid = get_amp_nid(kcontrol);
2122 int chs = get_amp_channels(kcontrol);
2123 int dir = get_amp_direction(kcontrol);
2124 int idx = get_amp_index(kcontrol);
2125 long *valp = ucontrol->value.integer.value;
2128 *valp++ = (snd_hda_codec_amp_read(codec, nid, 0, dir, idx) &
2129 HDA_AMP_MUTE) ? 0 : 1;
2131 *valp = (snd_hda_codec_amp_read(codec, nid, 1, dir, idx) &
2132 HDA_AMP_MUTE) ? 0 : 1;
2135 EXPORT_SYMBOL_GPL(snd_hda_mixer_amp_switch_get);
2138 * snd_hda_mixer_amp_switch_put - Put callback for a standard AMP mixer switch
2139 * @kcontrol: ctl element
2140 * @ucontrol: pointer to get/store the data
2142 * The control element is supposed to have the private_value field
2143 * set up via HDA_COMPOSE_AMP_VAL*() or related macros.
2145 int snd_hda_mixer_amp_switch_put(struct snd_kcontrol *kcontrol,
2146 struct snd_ctl_elem_value *ucontrol)
2148 struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
2149 hda_nid_t nid = get_amp_nid(kcontrol);
2150 int chs = get_amp_channels(kcontrol);
2151 int dir = get_amp_direction(kcontrol);
2152 int idx = get_amp_index(kcontrol);
2153 long *valp = ucontrol->value.integer.value;
2157 change = snd_hda_codec_amp_update(codec, nid, 0, dir, idx,
2159 *valp ? 0 : HDA_AMP_MUTE);
2163 change |= snd_hda_codec_amp_update(codec, nid, 1, dir, idx,
2165 *valp ? 0 : HDA_AMP_MUTE);
2166 hda_call_check_power_status(codec, nid);
2169 EXPORT_SYMBOL_GPL(snd_hda_mixer_amp_switch_put);
2172 * SPDIF out controls
2175 static int snd_hda_spdif_mask_info(struct snd_kcontrol *kcontrol,
2176 struct snd_ctl_elem_info *uinfo)
2178 uinfo->type = SNDRV_CTL_ELEM_TYPE_IEC958;
2183 static int snd_hda_spdif_cmask_get(struct snd_kcontrol *kcontrol,
2184 struct snd_ctl_elem_value *ucontrol)
2186 ucontrol->value.iec958.status[0] = IEC958_AES0_PROFESSIONAL |
2187 IEC958_AES0_NONAUDIO |
2188 IEC958_AES0_CON_EMPHASIS_5015 |
2189 IEC958_AES0_CON_NOT_COPYRIGHT;
2190 ucontrol->value.iec958.status[1] = IEC958_AES1_CON_CATEGORY |
2191 IEC958_AES1_CON_ORIGINAL;
2195 static int snd_hda_spdif_pmask_get(struct snd_kcontrol *kcontrol,
2196 struct snd_ctl_elem_value *ucontrol)
2198 ucontrol->value.iec958.status[0] = IEC958_AES0_PROFESSIONAL |
2199 IEC958_AES0_NONAUDIO |
2200 IEC958_AES0_PRO_EMPHASIS_5015;
2204 static int snd_hda_spdif_default_get(struct snd_kcontrol *kcontrol,
2205 struct snd_ctl_elem_value *ucontrol)
2207 struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
2208 int idx = kcontrol->private_value;
2209 struct hda_spdif_out *spdif;
2211 if (WARN_ON(codec->spdif_out.used <= idx))
2213 mutex_lock(&codec->spdif_mutex);
2214 spdif = snd_array_elem(&codec->spdif_out, idx);
2215 ucontrol->value.iec958.status[0] = spdif->status & 0xff;
2216 ucontrol->value.iec958.status[1] = (spdif->status >> 8) & 0xff;
2217 ucontrol->value.iec958.status[2] = (spdif->status >> 16) & 0xff;
2218 ucontrol->value.iec958.status[3] = (spdif->status >> 24) & 0xff;
2219 mutex_unlock(&codec->spdif_mutex);
2224 /* convert from SPDIF status bits to HDA SPDIF bits
2225 * bit 0 (DigEn) is always set zero (to be filled later)
2227 static unsigned short convert_from_spdif_status(unsigned int sbits)
2229 unsigned short val = 0;
2231 if (sbits & IEC958_AES0_PROFESSIONAL)
2232 val |= AC_DIG1_PROFESSIONAL;
2233 if (sbits & IEC958_AES0_NONAUDIO)
2234 val |= AC_DIG1_NONAUDIO;
2235 if (sbits & IEC958_AES0_PROFESSIONAL) {
2236 if ((sbits & IEC958_AES0_PRO_EMPHASIS) ==
2237 IEC958_AES0_PRO_EMPHASIS_5015)
2238 val |= AC_DIG1_EMPHASIS;
2240 if ((sbits & IEC958_AES0_CON_EMPHASIS) ==
2241 IEC958_AES0_CON_EMPHASIS_5015)
2242 val |= AC_DIG1_EMPHASIS;
2243 if (!(sbits & IEC958_AES0_CON_NOT_COPYRIGHT))
2244 val |= AC_DIG1_COPYRIGHT;
2245 if (sbits & (IEC958_AES1_CON_ORIGINAL << 8))
2246 val |= AC_DIG1_LEVEL;
2247 val |= sbits & (IEC958_AES1_CON_CATEGORY << 8);
2252 /* convert to SPDIF status bits from HDA SPDIF bits
2254 static unsigned int convert_to_spdif_status(unsigned short val)
2256 unsigned int sbits = 0;
2258 if (val & AC_DIG1_NONAUDIO)
2259 sbits |= IEC958_AES0_NONAUDIO;
2260 if (val & AC_DIG1_PROFESSIONAL)
2261 sbits |= IEC958_AES0_PROFESSIONAL;
2262 if (sbits & IEC958_AES0_PROFESSIONAL) {
2263 if (val & AC_DIG1_EMPHASIS)
2264 sbits |= IEC958_AES0_PRO_EMPHASIS_5015;
2266 if (val & AC_DIG1_EMPHASIS)
2267 sbits |= IEC958_AES0_CON_EMPHASIS_5015;
2268 if (!(val & AC_DIG1_COPYRIGHT))
2269 sbits |= IEC958_AES0_CON_NOT_COPYRIGHT;
2270 if (val & AC_DIG1_LEVEL)
2271 sbits |= (IEC958_AES1_CON_ORIGINAL << 8);
2272 sbits |= val & (0x7f << 8);
2277 /* set digital convert verbs both for the given NID and its slaves */
2278 static void set_dig_out(struct hda_codec *codec, hda_nid_t nid,
2283 snd_hdac_regmap_update(&codec->core, nid, AC_VERB_SET_DIGI_CONVERT_1,
2285 d = codec->slave_dig_outs;
2289 snd_hdac_regmap_update(&codec->core, *d,
2290 AC_VERB_SET_DIGI_CONVERT_1, mask, val);
2293 static inline void set_dig_out_convert(struct hda_codec *codec, hda_nid_t nid,
2296 unsigned int mask = 0;
2297 unsigned int val = 0;
2307 set_dig_out(codec, nid, mask, val);
2310 static int snd_hda_spdif_default_put(struct snd_kcontrol *kcontrol,
2311 struct snd_ctl_elem_value *ucontrol)
2313 struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
2314 int idx = kcontrol->private_value;
2315 struct hda_spdif_out *spdif;
2320 if (WARN_ON(codec->spdif_out.used <= idx))
2322 mutex_lock(&codec->spdif_mutex);
2323 spdif = snd_array_elem(&codec->spdif_out, idx);
2325 spdif->status = ucontrol->value.iec958.status[0] |
2326 ((unsigned int)ucontrol->value.iec958.status[1] << 8) |
2327 ((unsigned int)ucontrol->value.iec958.status[2] << 16) |
2328 ((unsigned int)ucontrol->value.iec958.status[3] << 24);
2329 val = convert_from_spdif_status(spdif->status);
2330 val |= spdif->ctls & 1;
2331 change = spdif->ctls != val;
2333 if (change && nid != (u16)-1)
2334 set_dig_out_convert(codec, nid, val & 0xff, (val >> 8) & 0xff);
2335 mutex_unlock(&codec->spdif_mutex);
2339 #define snd_hda_spdif_out_switch_info snd_ctl_boolean_mono_info
2341 static int snd_hda_spdif_out_switch_get(struct snd_kcontrol *kcontrol,
2342 struct snd_ctl_elem_value *ucontrol)
2344 struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
2345 int idx = kcontrol->private_value;
2346 struct hda_spdif_out *spdif;
2348 if (WARN_ON(codec->spdif_out.used <= idx))
2350 mutex_lock(&codec->spdif_mutex);
2351 spdif = snd_array_elem(&codec->spdif_out, idx);
2352 ucontrol->value.integer.value[0] = spdif->ctls & AC_DIG1_ENABLE;
2353 mutex_unlock(&codec->spdif_mutex);
2357 static inline void set_spdif_ctls(struct hda_codec *codec, hda_nid_t nid,
2360 set_dig_out_convert(codec, nid, dig1, dig2);
2361 /* unmute amp switch (if any) */
2362 if ((get_wcaps(codec, nid) & AC_WCAP_OUT_AMP) &&
2363 (dig1 & AC_DIG1_ENABLE))
2364 snd_hda_codec_amp_stereo(codec, nid, HDA_OUTPUT, 0,
2368 static int snd_hda_spdif_out_switch_put(struct snd_kcontrol *kcontrol,
2369 struct snd_ctl_elem_value *ucontrol)
2371 struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
2372 int idx = kcontrol->private_value;
2373 struct hda_spdif_out *spdif;
2378 if (WARN_ON(codec->spdif_out.used <= idx))
2380 mutex_lock(&codec->spdif_mutex);
2381 spdif = snd_array_elem(&codec->spdif_out, idx);
2383 val = spdif->ctls & ~AC_DIG1_ENABLE;
2384 if (ucontrol->value.integer.value[0])
2385 val |= AC_DIG1_ENABLE;
2386 change = spdif->ctls != val;
2388 if (change && nid != (u16)-1)
2389 set_spdif_ctls(codec, nid, val & 0xff, -1);
2390 mutex_unlock(&codec->spdif_mutex);
2394 static struct snd_kcontrol_new dig_mixes[] = {
2396 .access = SNDRV_CTL_ELEM_ACCESS_READ,
2397 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
2398 .name = SNDRV_CTL_NAME_IEC958("", PLAYBACK, CON_MASK),
2399 .info = snd_hda_spdif_mask_info,
2400 .get = snd_hda_spdif_cmask_get,
2403 .access = SNDRV_CTL_ELEM_ACCESS_READ,
2404 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
2405 .name = SNDRV_CTL_NAME_IEC958("", PLAYBACK, PRO_MASK),
2406 .info = snd_hda_spdif_mask_info,
2407 .get = snd_hda_spdif_pmask_get,
2410 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
2411 .name = SNDRV_CTL_NAME_IEC958("", PLAYBACK, DEFAULT),
2412 .info = snd_hda_spdif_mask_info,
2413 .get = snd_hda_spdif_default_get,
2414 .put = snd_hda_spdif_default_put,
2417 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
2418 .name = SNDRV_CTL_NAME_IEC958("", PLAYBACK, SWITCH),
2419 .info = snd_hda_spdif_out_switch_info,
2420 .get = snd_hda_spdif_out_switch_get,
2421 .put = snd_hda_spdif_out_switch_put,
2427 * snd_hda_create_dig_out_ctls - create Output SPDIF-related controls
2428 * @codec: the HDA codec
2429 * @associated_nid: NID that new ctls associated with
2430 * @cvt_nid: converter NID
2431 * @type: HDA_PCM_TYPE_*
2432 * Creates controls related with the digital output.
2433 * Called from each patch supporting the digital out.
2435 * Returns 0 if successful, or a negative error code.
2437 int snd_hda_create_dig_out_ctls(struct hda_codec *codec,
2438 hda_nid_t associated_nid,
2443 struct snd_kcontrol *kctl;
2444 struct snd_kcontrol_new *dig_mix;
2447 const int spdif_index = 16;
2448 struct hda_spdif_out *spdif;
2449 struct hda_bus *bus = codec->bus;
2451 if (bus->primary_dig_out_type == HDA_PCM_TYPE_HDMI &&
2452 type == HDA_PCM_TYPE_SPDIF) {
2454 } else if (bus->primary_dig_out_type == HDA_PCM_TYPE_SPDIF &&
2455 type == HDA_PCM_TYPE_HDMI) {
2456 /* suppose a single SPDIF device */
2457 for (dig_mix = dig_mixes; dig_mix->name; dig_mix++) {
2458 kctl = find_mixer_ctl(codec, dig_mix->name, 0, 0);
2461 kctl->id.index = spdif_index;
2463 bus->primary_dig_out_type = HDA_PCM_TYPE_HDMI;
2465 if (!bus->primary_dig_out_type)
2466 bus->primary_dig_out_type = type;
2468 idx = find_empty_mixer_ctl_idx(codec, "IEC958 Playback Switch", idx);
2470 codec_err(codec, "too many IEC958 outputs\n");
2473 spdif = snd_array_new(&codec->spdif_out);
2476 for (dig_mix = dig_mixes; dig_mix->name; dig_mix++) {
2477 kctl = snd_ctl_new1(dig_mix, codec);
2480 kctl->id.index = idx;
2481 kctl->private_value = codec->spdif_out.used - 1;
2482 err = snd_hda_ctl_add(codec, associated_nid, kctl);
2486 spdif->nid = cvt_nid;
2487 snd_hdac_regmap_read(&codec->core, cvt_nid,
2488 AC_VERB_GET_DIGI_CONVERT_1, &val);
2490 spdif->status = convert_to_spdif_status(spdif->ctls);
2493 EXPORT_SYMBOL_GPL(snd_hda_create_dig_out_ctls);
2496 * snd_hda_spdif_out_of_nid - get the hda_spdif_out entry from the given NID
2497 * @codec: the HDA codec
2500 * call within spdif_mutex lock
2502 struct hda_spdif_out *snd_hda_spdif_out_of_nid(struct hda_codec *codec,
2505 struct hda_spdif_out *spdif;
2508 snd_array_for_each(&codec->spdif_out, i, spdif) {
2509 if (spdif->nid == nid)
2514 EXPORT_SYMBOL_GPL(snd_hda_spdif_out_of_nid);
2517 * snd_hda_spdif_ctls_unassign - Unassign the given SPDIF ctl
2518 * @codec: the HDA codec
2519 * @idx: the SPDIF ctl index
2521 * Unassign the widget from the given SPDIF control.
2523 void snd_hda_spdif_ctls_unassign(struct hda_codec *codec, int idx)
2525 struct hda_spdif_out *spdif;
2527 if (WARN_ON(codec->spdif_out.used <= idx))
2529 mutex_lock(&codec->spdif_mutex);
2530 spdif = snd_array_elem(&codec->spdif_out, idx);
2531 spdif->nid = (u16)-1;
2532 mutex_unlock(&codec->spdif_mutex);
2534 EXPORT_SYMBOL_GPL(snd_hda_spdif_ctls_unassign);
2537 * snd_hda_spdif_ctls_assign - Assign the SPDIF controls to the given NID
2538 * @codec: the HDA codec
2539 * @idx: the SPDIF ctl idx
2542 * Assign the widget to the SPDIF control with the given index.
2544 void snd_hda_spdif_ctls_assign(struct hda_codec *codec, int idx, hda_nid_t nid)
2546 struct hda_spdif_out *spdif;
2549 if (WARN_ON(codec->spdif_out.used <= idx))
2551 mutex_lock(&codec->spdif_mutex);
2552 spdif = snd_array_elem(&codec->spdif_out, idx);
2553 if (spdif->nid != nid) {
2556 set_spdif_ctls(codec, nid, val & 0xff, (val >> 8) & 0xff);
2558 mutex_unlock(&codec->spdif_mutex);
2560 EXPORT_SYMBOL_GPL(snd_hda_spdif_ctls_assign);
2563 * SPDIF sharing with analog output
2565 static int spdif_share_sw_get(struct snd_kcontrol *kcontrol,
2566 struct snd_ctl_elem_value *ucontrol)
2568 struct hda_multi_out *mout = snd_kcontrol_chip(kcontrol);
2569 ucontrol->value.integer.value[0] = mout->share_spdif;
2573 static int spdif_share_sw_put(struct snd_kcontrol *kcontrol,
2574 struct snd_ctl_elem_value *ucontrol)
2576 struct hda_multi_out *mout = snd_kcontrol_chip(kcontrol);
2577 mout->share_spdif = !!ucontrol->value.integer.value[0];
2581 static const struct snd_kcontrol_new spdif_share_sw = {
2582 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
2583 .name = "IEC958 Default PCM Playback Switch",
2584 .info = snd_ctl_boolean_mono_info,
2585 .get = spdif_share_sw_get,
2586 .put = spdif_share_sw_put,
2590 * snd_hda_create_spdif_share_sw - create Default PCM switch
2591 * @codec: the HDA codec
2592 * @mout: multi-out instance
2594 int snd_hda_create_spdif_share_sw(struct hda_codec *codec,
2595 struct hda_multi_out *mout)
2597 struct snd_kcontrol *kctl;
2599 if (!mout->dig_out_nid)
2602 kctl = snd_ctl_new1(&spdif_share_sw, mout);
2605 /* ATTENTION: here mout is passed as private_data, instead of codec */
2606 return snd_hda_ctl_add(codec, mout->dig_out_nid, kctl);
2608 EXPORT_SYMBOL_GPL(snd_hda_create_spdif_share_sw);
2614 #define snd_hda_spdif_in_switch_info snd_hda_spdif_out_switch_info
2616 static int snd_hda_spdif_in_switch_get(struct snd_kcontrol *kcontrol,
2617 struct snd_ctl_elem_value *ucontrol)
2619 struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
2621 ucontrol->value.integer.value[0] = codec->spdif_in_enable;
2625 static int snd_hda_spdif_in_switch_put(struct snd_kcontrol *kcontrol,
2626 struct snd_ctl_elem_value *ucontrol)
2628 struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
2629 hda_nid_t nid = kcontrol->private_value;
2630 unsigned int val = !!ucontrol->value.integer.value[0];
2633 mutex_lock(&codec->spdif_mutex);
2634 change = codec->spdif_in_enable != val;
2636 codec->spdif_in_enable = val;
2637 snd_hdac_regmap_write(&codec->core, nid,
2638 AC_VERB_SET_DIGI_CONVERT_1, val);
2640 mutex_unlock(&codec->spdif_mutex);
2644 static int snd_hda_spdif_in_status_get(struct snd_kcontrol *kcontrol,
2645 struct snd_ctl_elem_value *ucontrol)
2647 struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
2648 hda_nid_t nid = kcontrol->private_value;
2652 snd_hdac_regmap_read(&codec->core, nid,
2653 AC_VERB_GET_DIGI_CONVERT_1, &val);
2654 sbits = convert_to_spdif_status(val);
2655 ucontrol->value.iec958.status[0] = sbits;
2656 ucontrol->value.iec958.status[1] = sbits >> 8;
2657 ucontrol->value.iec958.status[2] = sbits >> 16;
2658 ucontrol->value.iec958.status[3] = sbits >> 24;
2662 static struct snd_kcontrol_new dig_in_ctls[] = {
2664 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
2665 .name = SNDRV_CTL_NAME_IEC958("", CAPTURE, SWITCH),
2666 .info = snd_hda_spdif_in_switch_info,
2667 .get = snd_hda_spdif_in_switch_get,
2668 .put = snd_hda_spdif_in_switch_put,
2671 .access = SNDRV_CTL_ELEM_ACCESS_READ,
2672 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
2673 .name = SNDRV_CTL_NAME_IEC958("", CAPTURE, DEFAULT),
2674 .info = snd_hda_spdif_mask_info,
2675 .get = snd_hda_spdif_in_status_get,
2681 * snd_hda_create_spdif_in_ctls - create Input SPDIF-related controls
2682 * @codec: the HDA codec
2683 * @nid: audio in widget NID
2685 * Creates controls related with the SPDIF input.
2686 * Called from each patch supporting the SPDIF in.
2688 * Returns 0 if successful, or a negative error code.
2690 int snd_hda_create_spdif_in_ctls(struct hda_codec *codec, hda_nid_t nid)
2693 struct snd_kcontrol *kctl;
2694 struct snd_kcontrol_new *dig_mix;
2697 idx = find_empty_mixer_ctl_idx(codec, "IEC958 Capture Switch", 0);
2699 codec_err(codec, "too many IEC958 inputs\n");
2702 for (dig_mix = dig_in_ctls; dig_mix->name; dig_mix++) {
2703 kctl = snd_ctl_new1(dig_mix, codec);
2706 kctl->private_value = nid;
2707 err = snd_hda_ctl_add(codec, nid, kctl);
2711 codec->spdif_in_enable =
2712 snd_hda_codec_read(codec, nid, 0,
2713 AC_VERB_GET_DIGI_CONVERT_1, 0) &
2717 EXPORT_SYMBOL_GPL(snd_hda_create_spdif_in_ctls);
2720 * snd_hda_codec_set_power_to_all - Set the power state to all widgets
2721 * @codec: the HDA codec
2722 * @fg: function group (not used now)
2723 * @power_state: the power state to set (AC_PWRST_*)
2725 * Set the given power state to all widgets that have the power control.
2726 * If the codec has power_filter set, it evaluates the power state and
2727 * filter out if it's unchanged as D3.
2729 void snd_hda_codec_set_power_to_all(struct hda_codec *codec, hda_nid_t fg,
2730 unsigned int power_state)
2734 for_each_hda_codec_node(nid, codec) {
2735 unsigned int wcaps = get_wcaps(codec, nid);
2736 unsigned int state = power_state;
2737 if (!(wcaps & AC_WCAP_POWER))
2739 if (codec->power_filter) {
2740 state = codec->power_filter(codec, nid, power_state);
2741 if (state != power_state && power_state == AC_PWRST_D3)
2744 snd_hda_codec_write(codec, nid, 0, AC_VERB_SET_POWER_STATE,
2748 EXPORT_SYMBOL_GPL(snd_hda_codec_set_power_to_all);
2751 * snd_hda_codec_eapd_power_filter - A power filter callback for EAPD
2752 * @codec: the HDA codec
2754 * @power_state: power state to evalue
2756 * Don't power down the widget if it controls eapd and EAPD_BTLENABLE is set.
2757 * This can be used a codec power_filter callback.
2759 unsigned int snd_hda_codec_eapd_power_filter(struct hda_codec *codec,
2761 unsigned int power_state)
2763 if (nid == codec->core.afg || nid == codec->core.mfg)
2765 if (power_state == AC_PWRST_D3 &&
2766 get_wcaps_type(get_wcaps(codec, nid)) == AC_WID_PIN &&
2767 (snd_hda_query_pin_caps(codec, nid) & AC_PINCAP_EAPD)) {
2768 int eapd = snd_hda_codec_read(codec, nid, 0,
2769 AC_VERB_GET_EAPD_BTLENABLE, 0);
2775 EXPORT_SYMBOL_GPL(snd_hda_codec_eapd_power_filter);
2778 * set power state of the codec, and return the power state
2780 static unsigned int hda_set_power_state(struct hda_codec *codec,
2781 unsigned int power_state)
2783 hda_nid_t fg = codec->core.afg ? codec->core.afg : codec->core.mfg;
2788 /* this delay seems necessary to avoid click noise at power-down */
2789 if (power_state == AC_PWRST_D3) {
2790 if (codec->depop_delay < 0)
2791 msleep(codec_has_epss(codec) ? 10 : 100);
2792 else if (codec->depop_delay > 0)
2793 msleep(codec->depop_delay);
2794 flags = HDA_RW_NO_RESPONSE_FALLBACK;
2797 /* repeat power states setting at most 10 times*/
2798 for (count = 0; count < 10; count++) {
2799 if (codec->patch_ops.set_power_state)
2800 codec->patch_ops.set_power_state(codec, fg,
2803 state = power_state;
2804 if (codec->power_filter)
2805 state = codec->power_filter(codec, fg, state);
2806 if (state == power_state || power_state != AC_PWRST_D3)
2807 snd_hda_codec_read(codec, fg, flags,
2808 AC_VERB_SET_POWER_STATE,
2810 snd_hda_codec_set_power_to_all(codec, fg, power_state);
2812 state = snd_hda_sync_power_state(codec, fg, power_state);
2813 if (!(state & AC_PWRST_ERROR))
2820 /* sync power states of all widgets;
2821 * this is called at the end of codec parsing
2823 static void sync_power_up_states(struct hda_codec *codec)
2827 /* don't care if no filter is used */
2828 if (!codec->power_filter)
2831 for_each_hda_codec_node(nid, codec) {
2832 unsigned int wcaps = get_wcaps(codec, nid);
2833 unsigned int target;
2834 if (!(wcaps & AC_WCAP_POWER))
2836 target = codec->power_filter(codec, nid, AC_PWRST_D0);
2837 if (target == AC_PWRST_D0)
2839 if (!snd_hda_check_power_state(codec, nid, target))
2840 snd_hda_codec_write(codec, nid, 0,
2841 AC_VERB_SET_POWER_STATE, target);
2845 #ifdef CONFIG_SND_HDA_RECONFIG
2846 /* execute additional init verbs */
2847 static void hda_exec_init_verbs(struct hda_codec *codec)
2849 if (codec->init_verbs.list)
2850 snd_hda_sequence_write(codec, codec->init_verbs.list);
2853 static inline void hda_exec_init_verbs(struct hda_codec *codec) {}
2857 /* update the power on/off account with the current jiffies */
2858 static void update_power_acct(struct hda_codec *codec, bool on)
2860 unsigned long delta = jiffies - codec->power_jiffies;
2863 codec->power_on_acct += delta;
2865 codec->power_off_acct += delta;
2866 codec->power_jiffies += delta;
2869 void snd_hda_update_power_acct(struct hda_codec *codec)
2871 update_power_acct(codec, hda_codec_is_power_on(codec));
2875 * call suspend and power-down; used both from PM and power-save
2876 * this function returns the power state in the end
2878 static unsigned int hda_call_codec_suspend(struct hda_codec *codec)
2882 snd_hdac_enter_pm(&codec->core);
2883 if (codec->patch_ops.suspend)
2884 codec->patch_ops.suspend(codec);
2885 hda_cleanup_all_streams(codec);
2886 state = hda_set_power_state(codec, AC_PWRST_D3);
2887 update_power_acct(codec, true);
2888 snd_hdac_leave_pm(&codec->core);
2893 * kick up codec; used both from PM and power-save
2895 static void hda_call_codec_resume(struct hda_codec *codec)
2897 snd_hdac_enter_pm(&codec->core);
2898 if (codec->core.regmap)
2899 regcache_mark_dirty(codec->core.regmap);
2901 codec->power_jiffies = jiffies;
2903 hda_set_power_state(codec, AC_PWRST_D0);
2904 restore_shutup_pins(codec);
2905 hda_exec_init_verbs(codec);
2906 snd_hda_jack_set_dirty_all(codec);
2907 if (codec->patch_ops.resume)
2908 codec->patch_ops.resume(codec);
2910 if (codec->patch_ops.init)
2911 codec->patch_ops.init(codec);
2912 if (codec->core.regmap)
2913 regcache_sync(codec->core.regmap);
2916 if (codec->jackpoll_interval)
2917 hda_jackpoll_work(&codec->jackpoll_work.work);
2919 snd_hda_jack_report_sync(codec);
2920 snd_hdac_leave_pm(&codec->core);
2923 static int hda_codec_runtime_suspend(struct device *dev)
2925 struct hda_codec *codec = dev_to_hda_codec(dev);
2926 struct hda_pcm *pcm;
2929 cancel_delayed_work_sync(&codec->jackpoll_work);
2930 state = hda_call_codec_suspend(codec);
2931 if (codec->link_down_at_suspend ||
2932 (codec_has_clkstop(codec) && codec_has_epss(codec) &&
2933 (state & AC_PWRST_CLK_STOP_OK)))
2934 snd_hdac_codec_link_down(&codec->core);
2935 codec_display_power(codec, false);
2939 static int hda_codec_runtime_resume(struct device *dev)
2941 struct hda_codec *codec = dev_to_hda_codec(dev);
2943 codec_display_power(codec, true);
2944 snd_hdac_codec_link_up(&codec->core);
2945 hda_call_codec_resume(codec);
2946 pm_runtime_mark_last_busy(dev);
2949 #endif /* CONFIG_PM */
2951 /* referred in hda_bind.c */
2952 const struct dev_pm_ops hda_codec_driver_pm = {
2953 SET_SYSTEM_SLEEP_PM_OPS(pm_runtime_force_suspend,
2954 pm_runtime_force_resume)
2955 SET_RUNTIME_PM_OPS(hda_codec_runtime_suspend, hda_codec_runtime_resume,
2960 * add standard channel maps if not specified
2962 static int add_std_chmaps(struct hda_codec *codec)
2964 struct hda_pcm *pcm;
2967 list_for_each_entry(pcm, &codec->pcm_list_head, list) {
2968 for (str = 0; str < 2; str++) {
2969 struct hda_pcm_stream *hinfo = &pcm->stream[str];
2970 struct snd_pcm_chmap *chmap;
2971 const struct snd_pcm_chmap_elem *elem;
2973 if (!pcm->pcm || pcm->own_chmap || !hinfo->substreams)
2975 elem = hinfo->chmap ? hinfo->chmap : snd_pcm_std_chmaps;
2976 err = snd_pcm_add_chmap_ctls(pcm->pcm, str, elem,
2977 hinfo->channels_max,
2981 chmap->channel_mask = SND_PCM_CHMAP_MASK_2468;
2987 /* default channel maps for 2.1 speakers;
2988 * since HD-audio supports only stereo, odd number channels are omitted
2990 const struct snd_pcm_chmap_elem snd_pcm_2_1_chmaps[] = {
2992 .map = { SNDRV_CHMAP_FL, SNDRV_CHMAP_FR } },
2994 .map = { SNDRV_CHMAP_FL, SNDRV_CHMAP_FR,
2995 SNDRV_CHMAP_LFE, SNDRV_CHMAP_LFE } },
2998 EXPORT_SYMBOL_GPL(snd_pcm_2_1_chmaps);
3000 int snd_hda_codec_build_controls(struct hda_codec *codec)
3003 hda_exec_init_verbs(codec);
3004 /* continue to initialize... */
3005 if (codec->patch_ops.init)
3006 err = codec->patch_ops.init(codec);
3007 if (!err && codec->patch_ops.build_controls)
3008 err = codec->patch_ops.build_controls(codec);
3012 /* we create chmaps here instead of build_pcms */
3013 err = add_std_chmaps(codec);
3017 if (codec->jackpoll_interval)
3018 hda_jackpoll_work(&codec->jackpoll_work.work);
3020 snd_hda_jack_report_sync(codec); /* call at the last init point */
3021 sync_power_up_states(codec);
3024 EXPORT_SYMBOL_GPL(snd_hda_codec_build_controls);
3029 static int hda_pcm_default_open_close(struct hda_pcm_stream *hinfo,
3030 struct hda_codec *codec,
3031 struct snd_pcm_substream *substream)
3036 static int hda_pcm_default_prepare(struct hda_pcm_stream *hinfo,
3037 struct hda_codec *codec,
3038 unsigned int stream_tag,
3039 unsigned int format,
3040 struct snd_pcm_substream *substream)
3042 snd_hda_codec_setup_stream(codec, hinfo->nid, stream_tag, 0, format);
3046 static int hda_pcm_default_cleanup(struct hda_pcm_stream *hinfo,
3047 struct hda_codec *codec,
3048 struct snd_pcm_substream *substream)
3050 snd_hda_codec_cleanup_stream(codec, hinfo->nid);
3054 static int set_pcm_default_values(struct hda_codec *codec,
3055 struct hda_pcm_stream *info)
3059 /* query support PCM information from the given NID */
3060 if (info->nid && (!info->rates || !info->formats)) {
3061 err = snd_hda_query_supported_pcm(codec, info->nid,
3062 info->rates ? NULL : &info->rates,
3063 info->formats ? NULL : &info->formats,
3064 info->maxbps ? NULL : &info->maxbps);
3068 if (info->ops.open == NULL)
3069 info->ops.open = hda_pcm_default_open_close;
3070 if (info->ops.close == NULL)
3071 info->ops.close = hda_pcm_default_open_close;
3072 if (info->ops.prepare == NULL) {
3073 if (snd_BUG_ON(!info->nid))
3075 info->ops.prepare = hda_pcm_default_prepare;
3077 if (info->ops.cleanup == NULL) {
3078 if (snd_BUG_ON(!info->nid))
3080 info->ops.cleanup = hda_pcm_default_cleanup;
3086 * codec prepare/cleanup entries
3089 * snd_hda_codec_prepare - Prepare a stream
3090 * @codec: the HDA codec
3091 * @hinfo: PCM information
3092 * @stream: stream tag to assign
3093 * @format: format id to assign
3094 * @substream: PCM substream to assign
3096 * Calls the prepare callback set by the codec with the given arguments.
3097 * Clean up the inactive streams when successful.
3099 int snd_hda_codec_prepare(struct hda_codec *codec,
3100 struct hda_pcm_stream *hinfo,
3101 unsigned int stream,
3102 unsigned int format,
3103 struct snd_pcm_substream *substream)
3106 mutex_lock(&codec->bus->prepare_mutex);
3107 if (hinfo->ops.prepare)
3108 ret = hinfo->ops.prepare(hinfo, codec, stream, format,
3113 purify_inactive_streams(codec);
3114 mutex_unlock(&codec->bus->prepare_mutex);
3117 EXPORT_SYMBOL_GPL(snd_hda_codec_prepare);
3120 * snd_hda_codec_cleanup - Prepare a stream
3121 * @codec: the HDA codec
3122 * @hinfo: PCM information
3123 * @substream: PCM substream
3125 * Calls the cleanup callback set by the codec with the given arguments.
3127 void snd_hda_codec_cleanup(struct hda_codec *codec,
3128 struct hda_pcm_stream *hinfo,
3129 struct snd_pcm_substream *substream)
3131 mutex_lock(&codec->bus->prepare_mutex);
3132 if (hinfo->ops.cleanup)
3133 hinfo->ops.cleanup(hinfo, codec, substream);
3134 mutex_unlock(&codec->bus->prepare_mutex);
3136 EXPORT_SYMBOL_GPL(snd_hda_codec_cleanup);
3139 const char *snd_hda_pcm_type_name[HDA_PCM_NTYPES] = {
3140 "Audio", "SPDIF", "HDMI", "Modem"
3144 * get the empty PCM device number to assign
3146 static int get_empty_pcm_device(struct hda_bus *bus, unsigned int type)
3148 /* audio device indices; not linear to keep compatibility */
3149 /* assigned to static slots up to dev#10; if more needed, assign
3150 * the later slot dynamically (when CONFIG_SND_DYNAMIC_MINORS=y)
3152 static int audio_idx[HDA_PCM_NTYPES][5] = {
3153 [HDA_PCM_TYPE_AUDIO] = { 0, 2, 4, 5, -1 },
3154 [HDA_PCM_TYPE_SPDIF] = { 1, -1 },
3155 [HDA_PCM_TYPE_HDMI] = { 3, 7, 8, 9, -1 },
3156 [HDA_PCM_TYPE_MODEM] = { 6, -1 },
3160 if (type >= HDA_PCM_NTYPES) {
3161 dev_err(bus->card->dev, "Invalid PCM type %d\n", type);
3165 for (i = 0; audio_idx[type][i] >= 0; i++) {
3166 #ifndef CONFIG_SND_DYNAMIC_MINORS
3167 if (audio_idx[type][i] >= 8)
3170 if (!test_and_set_bit(audio_idx[type][i], bus->pcm_dev_bits))
3171 return audio_idx[type][i];
3174 #ifdef CONFIG_SND_DYNAMIC_MINORS
3175 /* non-fixed slots starting from 10 */
3176 for (i = 10; i < 32; i++) {
3177 if (!test_and_set_bit(i, bus->pcm_dev_bits))
3182 dev_warn(bus->card->dev, "Too many %s devices\n",
3183 snd_hda_pcm_type_name[type]);
3184 #ifndef CONFIG_SND_DYNAMIC_MINORS
3185 dev_warn(bus->card->dev,
3186 "Consider building the kernel with CONFIG_SND_DYNAMIC_MINORS=y\n");
3191 /* call build_pcms ops of the given codec and set up the default parameters */
3192 int snd_hda_codec_parse_pcms(struct hda_codec *codec)
3194 struct hda_pcm *cpcm;
3197 if (!list_empty(&codec->pcm_list_head))
3198 return 0; /* already parsed */
3200 if (!codec->patch_ops.build_pcms)
3203 err = codec->patch_ops.build_pcms(codec);
3205 codec_err(codec, "cannot build PCMs for #%d (error %d)\n",
3206 codec->core.addr, err);
3210 list_for_each_entry(cpcm, &codec->pcm_list_head, list) {
3213 for (stream = 0; stream < 2; stream++) {
3214 struct hda_pcm_stream *info = &cpcm->stream[stream];
3216 if (!info->substreams)
3218 err = set_pcm_default_values(codec, info);
3221 "fail to setup default for PCM %s\n",
3230 EXPORT_SYMBOL_GPL(snd_hda_codec_parse_pcms);
3232 /* assign all PCMs of the given codec */
3233 int snd_hda_codec_build_pcms(struct hda_codec *codec)
3235 struct hda_bus *bus = codec->bus;
3236 struct hda_pcm *cpcm;
3239 err = snd_hda_codec_parse_pcms(codec);
3243 /* attach a new PCM streams */
3244 list_for_each_entry(cpcm, &codec->pcm_list_head, list) {
3246 continue; /* already attached */
3247 if (!cpcm->stream[0].substreams && !cpcm->stream[1].substreams)
3248 continue; /* no substreams assigned */
3250 dev = get_empty_pcm_device(bus, cpcm->pcm_type);
3252 cpcm->device = SNDRV_PCM_INVALID_DEVICE;
3253 continue; /* no fatal error */
3256 err = snd_hda_attach_pcm_stream(bus, codec, cpcm);
3259 "cannot attach PCM stream %d for codec #%d\n",
3260 dev, codec->core.addr);
3261 continue; /* no fatal error */
3269 * snd_hda_add_new_ctls - create controls from the array
3270 * @codec: the HDA codec
3271 * @knew: the array of struct snd_kcontrol_new
3273 * This helper function creates and add new controls in the given array.
3274 * The array must be terminated with an empty entry as terminator.
3276 * Returns 0 if successful, or a negative error code.
3278 int snd_hda_add_new_ctls(struct hda_codec *codec,
3279 const struct snd_kcontrol_new *knew)
3283 for (; knew->name; knew++) {
3284 struct snd_kcontrol *kctl;
3285 int addr = 0, idx = 0;
3286 if (knew->iface == (__force snd_ctl_elem_iface_t)-1)
3287 continue; /* skip this codec private value */
3289 kctl = snd_ctl_new1(knew, codec);
3293 kctl->id.device = addr;
3295 kctl->id.index = idx;
3296 err = snd_hda_ctl_add(codec, 0, kctl);
3299 /* try first with another device index corresponding to
3300 * the codec addr; if it still fails (or it's the
3301 * primary codec), then try another control index
3303 if (!addr && codec->core.addr)
3304 addr = codec->core.addr;
3305 else if (!idx && !knew->index) {
3306 idx = find_empty_mixer_ctl_idx(codec,
3316 EXPORT_SYMBOL_GPL(snd_hda_add_new_ctls);
3319 static void codec_set_power_save(struct hda_codec *codec, int delay)
3321 struct device *dev = hda_codec_dev(codec);
3323 if (delay == 0 && codec->auto_runtime_pm)
3327 pm_runtime_set_autosuspend_delay(dev, delay);
3328 pm_runtime_use_autosuspend(dev);
3329 pm_runtime_allow(dev);
3330 if (!pm_runtime_suspended(dev))
3331 pm_runtime_mark_last_busy(dev);
3333 pm_runtime_dont_use_autosuspend(dev);
3334 pm_runtime_forbid(dev);
3339 * snd_hda_set_power_save - reprogram autosuspend for the given delay
3340 * @bus: HD-audio bus
3341 * @delay: autosuspend delay in msec, 0 = off
3343 * Synchronize the runtime PM autosuspend state from the power_save option.
3345 void snd_hda_set_power_save(struct hda_bus *bus, int delay)
3347 struct hda_codec *c;
3349 list_for_each_codec(c, bus)
3350 codec_set_power_save(c, delay);
3352 EXPORT_SYMBOL_GPL(snd_hda_set_power_save);
3355 * snd_hda_check_amp_list_power - Check the amp list and update the power
3356 * @codec: HD-audio codec
3357 * @check: the object containing an AMP list and the status
3358 * @nid: NID to check / update
3360 * Check whether the given NID is in the amp list. If it's in the list,
3361 * check the current AMP status, and update the the power-status according
3362 * to the mute status.
3364 * This function is supposed to be set or called from the check_power_status
3367 int snd_hda_check_amp_list_power(struct hda_codec *codec,
3368 struct hda_loopback_check *check,
3371 const struct hda_amp_list *p;
3374 if (!check->amplist)
3376 for (p = check->amplist; p->nid; p++) {
3381 return 0; /* nothing changed */
3383 for (p = check->amplist; p->nid; p++) {
3384 for (ch = 0; ch < 2; ch++) {
3385 v = snd_hda_codec_amp_read(codec, p->nid, ch, p->dir,
3387 if (!(v & HDA_AMP_MUTE) && v > 0) {
3388 if (!check->power_on) {
3389 check->power_on = 1;
3390 snd_hda_power_up_pm(codec);
3396 if (check->power_on) {
3397 check->power_on = 0;
3398 snd_hda_power_down_pm(codec);
3402 EXPORT_SYMBOL_GPL(snd_hda_check_amp_list_power);
3410 * snd_hda_input_mux_info_info - Info callback helper for the input-mux enum
3411 * @imux: imux helper object
3412 * @uinfo: pointer to get/store the data
3414 int snd_hda_input_mux_info(const struct hda_input_mux *imux,
3415 struct snd_ctl_elem_info *uinfo)
3419 uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
3421 uinfo->value.enumerated.items = imux->num_items;
3422 if (!imux->num_items)
3424 index = uinfo->value.enumerated.item;
3425 if (index >= imux->num_items)
3426 index = imux->num_items - 1;
3427 strcpy(uinfo->value.enumerated.name, imux->items[index].label);
3430 EXPORT_SYMBOL_GPL(snd_hda_input_mux_info);
3433 * snd_hda_input_mux_info_put - Put callback helper for the input-mux enum
3434 * @codec: the HDA codec
3435 * @imux: imux helper object
3436 * @ucontrol: pointer to get/store the data
3437 * @nid: input mux NID
3438 * @cur_val: pointer to get/store the current imux value
3440 int snd_hda_input_mux_put(struct hda_codec *codec,
3441 const struct hda_input_mux *imux,
3442 struct snd_ctl_elem_value *ucontrol,
3444 unsigned int *cur_val)
3448 if (!imux->num_items)
3450 idx = ucontrol->value.enumerated.item[0];
3451 if (idx >= imux->num_items)
3452 idx = imux->num_items - 1;
3453 if (*cur_val == idx)
3455 snd_hda_codec_write_cache(codec, nid, 0, AC_VERB_SET_CONNECT_SEL,
3456 imux->items[idx].index);
3460 EXPORT_SYMBOL_GPL(snd_hda_input_mux_put);
3464 * snd_hda_enum_helper_info - Helper for simple enum ctls
3465 * @kcontrol: ctl element
3466 * @uinfo: pointer to get/store the data
3467 * @num_items: number of enum items
3468 * @texts: enum item string array
3470 * process kcontrol info callback of a simple string enum array
3471 * when @num_items is 0 or @texts is NULL, assume a boolean enum array
3473 int snd_hda_enum_helper_info(struct snd_kcontrol *kcontrol,
3474 struct snd_ctl_elem_info *uinfo,
3475 int num_items, const char * const *texts)
3477 static const char * const texts_default[] = {
3478 "Disabled", "Enabled"
3481 if (!texts || !num_items) {
3483 texts = texts_default;
3486 return snd_ctl_enum_info(uinfo, 1, num_items, texts);
3488 EXPORT_SYMBOL_GPL(snd_hda_enum_helper_info);
3491 * Multi-channel / digital-out PCM helper functions
3494 /* setup SPDIF output stream */
3495 static void setup_dig_out_stream(struct hda_codec *codec, hda_nid_t nid,
3496 unsigned int stream_tag, unsigned int format)
3498 struct hda_spdif_out *spdif;
3499 unsigned int curr_fmt;
3502 spdif = snd_hda_spdif_out_of_nid(codec, nid);
3503 /* Add sanity check to pass klockwork check.
3504 * This should never happen.
3506 if (WARN_ON(spdif == NULL))
3509 curr_fmt = snd_hda_codec_read(codec, nid, 0,
3510 AC_VERB_GET_STREAM_FORMAT, 0);
3511 reset = codec->spdif_status_reset &&
3512 (spdif->ctls & AC_DIG1_ENABLE) &&
3515 /* turn off SPDIF if needed; otherwise the IEC958 bits won't be
3518 set_dig_out_convert(codec, nid,
3519 spdif->ctls & ~AC_DIG1_ENABLE & 0xff,
3521 snd_hda_codec_setup_stream(codec, nid, stream_tag, 0, format);
3522 if (codec->slave_dig_outs) {
3524 for (d = codec->slave_dig_outs; *d; d++)
3525 snd_hda_codec_setup_stream(codec, *d, stream_tag, 0,
3528 /* turn on again (if needed) */
3530 set_dig_out_convert(codec, nid,
3531 spdif->ctls & 0xff, -1);
3534 static void cleanup_dig_out_stream(struct hda_codec *codec, hda_nid_t nid)
3536 snd_hda_codec_cleanup_stream(codec, nid);
3537 if (codec->slave_dig_outs) {
3539 for (d = codec->slave_dig_outs; *d; d++)
3540 snd_hda_codec_cleanup_stream(codec, *d);
3545 * snd_hda_multi_out_dig_open - open the digital out in the exclusive mode
3546 * @codec: the HDA codec
3547 * @mout: hda_multi_out object
3549 int snd_hda_multi_out_dig_open(struct hda_codec *codec,
3550 struct hda_multi_out *mout)
3552 mutex_lock(&codec->spdif_mutex);
3553 if (mout->dig_out_used == HDA_DIG_ANALOG_DUP)
3554 /* already opened as analog dup; reset it once */
3555 cleanup_dig_out_stream(codec, mout->dig_out_nid);
3556 mout->dig_out_used = HDA_DIG_EXCLUSIVE;
3557 mutex_unlock(&codec->spdif_mutex);
3560 EXPORT_SYMBOL_GPL(snd_hda_multi_out_dig_open);
3563 * snd_hda_multi_out_dig_prepare - prepare the digital out stream
3564 * @codec: the HDA codec
3565 * @mout: hda_multi_out object
3566 * @stream_tag: stream tag to assign
3567 * @format: format id to assign
3568 * @substream: PCM substream to assign
3570 int snd_hda_multi_out_dig_prepare(struct hda_codec *codec,
3571 struct hda_multi_out *mout,
3572 unsigned int stream_tag,
3573 unsigned int format,
3574 struct snd_pcm_substream *substream)
3576 mutex_lock(&codec->spdif_mutex);
3577 setup_dig_out_stream(codec, mout->dig_out_nid, stream_tag, format);
3578 mutex_unlock(&codec->spdif_mutex);
3581 EXPORT_SYMBOL_GPL(snd_hda_multi_out_dig_prepare);
3584 * snd_hda_multi_out_dig_cleanup - clean-up the digital out stream
3585 * @codec: the HDA codec
3586 * @mout: hda_multi_out object
3588 int snd_hda_multi_out_dig_cleanup(struct hda_codec *codec,
3589 struct hda_multi_out *mout)
3591 mutex_lock(&codec->spdif_mutex);
3592 cleanup_dig_out_stream(codec, mout->dig_out_nid);
3593 mutex_unlock(&codec->spdif_mutex);
3596 EXPORT_SYMBOL_GPL(snd_hda_multi_out_dig_cleanup);
3599 * snd_hda_multi_out_dig_close - release the digital out stream
3600 * @codec: the HDA codec
3601 * @mout: hda_multi_out object
3603 int snd_hda_multi_out_dig_close(struct hda_codec *codec,
3604 struct hda_multi_out *mout)
3606 mutex_lock(&codec->spdif_mutex);
3607 mout->dig_out_used = 0;
3608 mutex_unlock(&codec->spdif_mutex);
3611 EXPORT_SYMBOL_GPL(snd_hda_multi_out_dig_close);
3614 * snd_hda_multi_out_analog_open - open analog outputs
3615 * @codec: the HDA codec
3616 * @mout: hda_multi_out object
3617 * @substream: PCM substream to assign
3618 * @hinfo: PCM information to assign
3620 * Open analog outputs and set up the hw-constraints.
3621 * If the digital outputs can be opened as slave, open the digital
3624 int snd_hda_multi_out_analog_open(struct hda_codec *codec,
3625 struct hda_multi_out *mout,
3626 struct snd_pcm_substream *substream,
3627 struct hda_pcm_stream *hinfo)
3629 struct snd_pcm_runtime *runtime = substream->runtime;
3630 runtime->hw.channels_max = mout->max_channels;
3631 if (mout->dig_out_nid) {
3632 if (!mout->analog_rates) {
3633 mout->analog_rates = hinfo->rates;
3634 mout->analog_formats = hinfo->formats;
3635 mout->analog_maxbps = hinfo->maxbps;
3637 runtime->hw.rates = mout->analog_rates;
3638 runtime->hw.formats = mout->analog_formats;
3639 hinfo->maxbps = mout->analog_maxbps;
3641 if (!mout->spdif_rates) {
3642 snd_hda_query_supported_pcm(codec, mout->dig_out_nid,
3644 &mout->spdif_formats,
3645 &mout->spdif_maxbps);
3647 mutex_lock(&codec->spdif_mutex);
3648 if (mout->share_spdif) {
3649 if ((runtime->hw.rates & mout->spdif_rates) &&
3650 (runtime->hw.formats & mout->spdif_formats)) {
3651 runtime->hw.rates &= mout->spdif_rates;
3652 runtime->hw.formats &= mout->spdif_formats;
3653 if (mout->spdif_maxbps < hinfo->maxbps)
3654 hinfo->maxbps = mout->spdif_maxbps;
3656 mout->share_spdif = 0;
3657 /* FIXME: need notify? */
3660 mutex_unlock(&codec->spdif_mutex);
3662 return snd_pcm_hw_constraint_step(substream->runtime, 0,
3663 SNDRV_PCM_HW_PARAM_CHANNELS, 2);
3665 EXPORT_SYMBOL_GPL(snd_hda_multi_out_analog_open);
3668 * snd_hda_multi_out_analog_prepare - Preapre the analog outputs.
3669 * @codec: the HDA codec
3670 * @mout: hda_multi_out object
3671 * @stream_tag: stream tag to assign
3672 * @format: format id to assign
3673 * @substream: PCM substream to assign
3675 * Set up the i/o for analog out.
3676 * When the digital out is available, copy the front out to digital out, too.
3678 int snd_hda_multi_out_analog_prepare(struct hda_codec *codec,
3679 struct hda_multi_out *mout,
3680 unsigned int stream_tag,
3681 unsigned int format,
3682 struct snd_pcm_substream *substream)
3684 const hda_nid_t *nids = mout->dac_nids;
3685 int chs = substream->runtime->channels;
3686 struct hda_spdif_out *spdif;
3689 mutex_lock(&codec->spdif_mutex);
3690 spdif = snd_hda_spdif_out_of_nid(codec, mout->dig_out_nid);
3691 if (mout->dig_out_nid && mout->share_spdif &&
3692 mout->dig_out_used != HDA_DIG_EXCLUSIVE) {
3693 if (chs == 2 && spdif != NULL &&
3694 snd_hda_is_supported_format(codec, mout->dig_out_nid,
3696 !(spdif->status & IEC958_AES0_NONAUDIO)) {
3697 mout->dig_out_used = HDA_DIG_ANALOG_DUP;
3698 setup_dig_out_stream(codec, mout->dig_out_nid,
3699 stream_tag, format);
3701 mout->dig_out_used = 0;
3702 cleanup_dig_out_stream(codec, mout->dig_out_nid);
3705 mutex_unlock(&codec->spdif_mutex);
3708 snd_hda_codec_setup_stream(codec, nids[HDA_FRONT], stream_tag,
3710 if (!mout->no_share_stream &&
3711 mout->hp_nid && mout->hp_nid != nids[HDA_FRONT])
3712 /* headphone out will just decode front left/right (stereo) */
3713 snd_hda_codec_setup_stream(codec, mout->hp_nid, stream_tag,
3715 /* extra outputs copied from front */
3716 for (i = 0; i < ARRAY_SIZE(mout->hp_out_nid); i++)
3717 if (!mout->no_share_stream && mout->hp_out_nid[i])
3718 snd_hda_codec_setup_stream(codec,
3719 mout->hp_out_nid[i],
3720 stream_tag, 0, format);
3723 for (i = 1; i < mout->num_dacs; i++) {
3724 if (chs >= (i + 1) * 2) /* independent out */
3725 snd_hda_codec_setup_stream(codec, nids[i], stream_tag,
3727 else if (!mout->no_share_stream) /* copy front */
3728 snd_hda_codec_setup_stream(codec, nids[i], stream_tag,
3732 /* extra surrounds */
3733 for (i = 0; i < ARRAY_SIZE(mout->extra_out_nid); i++) {
3735 if (!mout->extra_out_nid[i])
3737 if (chs >= (i + 1) * 2)
3739 else if (!mout->no_share_stream)
3741 snd_hda_codec_setup_stream(codec, mout->extra_out_nid[i],
3742 stream_tag, ch, format);
3747 EXPORT_SYMBOL_GPL(snd_hda_multi_out_analog_prepare);
3750 * snd_hda_multi_out_analog_cleanup - clean up the setting for analog out
3751 * @codec: the HDA codec
3752 * @mout: hda_multi_out object
3754 int snd_hda_multi_out_analog_cleanup(struct hda_codec *codec,
3755 struct hda_multi_out *mout)
3757 const hda_nid_t *nids = mout->dac_nids;
3760 for (i = 0; i < mout->num_dacs; i++)
3761 snd_hda_codec_cleanup_stream(codec, nids[i]);
3763 snd_hda_codec_cleanup_stream(codec, mout->hp_nid);
3764 for (i = 0; i < ARRAY_SIZE(mout->hp_out_nid); i++)
3765 if (mout->hp_out_nid[i])
3766 snd_hda_codec_cleanup_stream(codec,
3767 mout->hp_out_nid[i]);
3768 for (i = 0; i < ARRAY_SIZE(mout->extra_out_nid); i++)
3769 if (mout->extra_out_nid[i])
3770 snd_hda_codec_cleanup_stream(codec,
3771 mout->extra_out_nid[i]);
3772 mutex_lock(&codec->spdif_mutex);
3773 if (mout->dig_out_nid && mout->dig_out_used == HDA_DIG_ANALOG_DUP) {
3774 cleanup_dig_out_stream(codec, mout->dig_out_nid);
3775 mout->dig_out_used = 0;
3777 mutex_unlock(&codec->spdif_mutex);
3780 EXPORT_SYMBOL_GPL(snd_hda_multi_out_analog_cleanup);
3783 * snd_hda_get_default_vref - Get the default (mic) VREF pin bits
3784 * @codec: the HDA codec
3785 * @pin: referred pin NID
3787 * Guess the suitable VREF pin bits to be set as the pin-control value.
3788 * Note: the function doesn't set the AC_PINCTL_IN_EN bit.
3790 unsigned int snd_hda_get_default_vref(struct hda_codec *codec, hda_nid_t pin)
3792 unsigned int pincap;
3793 unsigned int oldval;
3794 oldval = snd_hda_codec_read(codec, pin, 0,
3795 AC_VERB_GET_PIN_WIDGET_CONTROL, 0);
3796 pincap = snd_hda_query_pin_caps(codec, pin);
3797 pincap = (pincap & AC_PINCAP_VREF) >> AC_PINCAP_VREF_SHIFT;
3798 /* Exception: if the default pin setup is vref50, we give it priority */
3799 if ((pincap & AC_PINCAP_VREF_80) && oldval != PIN_VREF50)
3800 return AC_PINCTL_VREF_80;
3801 else if (pincap & AC_PINCAP_VREF_50)
3802 return AC_PINCTL_VREF_50;
3803 else if (pincap & AC_PINCAP_VREF_100)
3804 return AC_PINCTL_VREF_100;
3805 else if (pincap & AC_PINCAP_VREF_GRD)
3806 return AC_PINCTL_VREF_GRD;
3807 return AC_PINCTL_VREF_HIZ;
3809 EXPORT_SYMBOL_GPL(snd_hda_get_default_vref);
3812 * snd_hda_correct_pin_ctl - correct the pin ctl value for matching with the pin cap
3813 * @codec: the HDA codec
3814 * @pin: referred pin NID
3815 * @val: pin ctl value to audit
3817 unsigned int snd_hda_correct_pin_ctl(struct hda_codec *codec,
3818 hda_nid_t pin, unsigned int val)
3820 static unsigned int cap_lists[][2] = {
3821 { AC_PINCTL_VREF_100, AC_PINCAP_VREF_100 },
3822 { AC_PINCTL_VREF_80, AC_PINCAP_VREF_80 },
3823 { AC_PINCTL_VREF_50, AC_PINCAP_VREF_50 },
3824 { AC_PINCTL_VREF_GRD, AC_PINCAP_VREF_GRD },
3830 cap = snd_hda_query_pin_caps(codec, pin);
3832 return val; /* don't know what to do... */
3834 if (val & AC_PINCTL_OUT_EN) {
3835 if (!(cap & AC_PINCAP_OUT))
3836 val &= ~(AC_PINCTL_OUT_EN | AC_PINCTL_HP_EN);
3837 else if ((val & AC_PINCTL_HP_EN) && !(cap & AC_PINCAP_HP_DRV))
3838 val &= ~AC_PINCTL_HP_EN;
3841 if (val & AC_PINCTL_IN_EN) {
3842 if (!(cap & AC_PINCAP_IN))
3843 val &= ~(AC_PINCTL_IN_EN | AC_PINCTL_VREFEN);
3845 unsigned int vcap, vref;
3847 vcap = (cap & AC_PINCAP_VREF) >> AC_PINCAP_VREF_SHIFT;
3848 vref = val & AC_PINCTL_VREFEN;
3849 for (i = 0; i < ARRAY_SIZE(cap_lists); i++) {
3850 if (vref == cap_lists[i][0] &&
3851 !(vcap & cap_lists[i][1])) {
3852 if (i == ARRAY_SIZE(cap_lists) - 1)
3853 vref = AC_PINCTL_VREF_HIZ;
3855 vref = cap_lists[i + 1][0];
3858 val &= ~AC_PINCTL_VREFEN;
3865 EXPORT_SYMBOL_GPL(snd_hda_correct_pin_ctl);
3868 * _snd_hda_pin_ctl - Helper to set pin ctl value
3869 * @codec: the HDA codec
3870 * @pin: referred pin NID
3871 * @val: pin control value to set
3872 * @cached: access over codec pinctl cache or direct write
3874 * This function is a helper to set a pin ctl value more safely.
3875 * It corrects the pin ctl value via snd_hda_correct_pin_ctl(), stores the
3876 * value in pin target array via snd_hda_codec_set_pin_target(), then
3877 * actually writes the value via either snd_hda_codec_write_cache() or
3878 * snd_hda_codec_write() depending on @cached flag.
3880 int _snd_hda_set_pin_ctl(struct hda_codec *codec, hda_nid_t pin,
3881 unsigned int val, bool cached)
3883 val = snd_hda_correct_pin_ctl(codec, pin, val);
3884 snd_hda_codec_set_pin_target(codec, pin, val);
3886 return snd_hda_codec_write_cache(codec, pin, 0,
3887 AC_VERB_SET_PIN_WIDGET_CONTROL, val);
3889 return snd_hda_codec_write(codec, pin, 0,
3890 AC_VERB_SET_PIN_WIDGET_CONTROL, val);
3892 EXPORT_SYMBOL_GPL(_snd_hda_set_pin_ctl);
3895 * snd_hda_add_imux_item - Add an item to input_mux
3896 * @codec: the HDA codec
3897 * @imux: imux helper object
3898 * @label: the name of imux item to assign
3899 * @index: index number of imux item to assign
3900 * @type_idx: pointer to store the resultant label index
3902 * When the same label is used already in the existing items, the number
3903 * suffix is appended to the label. This label index number is stored
3904 * to type_idx when non-NULL pointer is given.
3906 int snd_hda_add_imux_item(struct hda_codec *codec,
3907 struct hda_input_mux *imux, const char *label,
3908 int index, int *type_idx)
3910 int i, label_idx = 0;
3911 if (imux->num_items >= HDA_MAX_NUM_INPUTS) {
3912 codec_err(codec, "hda_codec: Too many imux items!\n");
3915 for (i = 0; i < imux->num_items; i++) {
3916 if (!strncmp(label, imux->items[i].label, strlen(label)))
3920 *type_idx = label_idx;
3922 snprintf(imux->items[imux->num_items].label,
3923 sizeof(imux->items[imux->num_items].label),
3924 "%s %d", label, label_idx);
3926 strlcpy(imux->items[imux->num_items].label, label,
3927 sizeof(imux->items[imux->num_items].label));
3928 imux->items[imux->num_items].index = index;
3932 EXPORT_SYMBOL_GPL(snd_hda_add_imux_item);
3935 * snd_hda_bus_reset_codecs - Reset the bus
3936 * @bus: HD-audio bus
3938 void snd_hda_bus_reset_codecs(struct hda_bus *bus)
3940 struct hda_codec *codec;
3942 list_for_each_codec(codec, bus) {
3943 /* FIXME: maybe a better way needed for forced reset */
3944 if (current_work() != &codec->jackpoll_work.work)
3945 cancel_delayed_work_sync(&codec->jackpoll_work);
3947 if (hda_codec_is_power_on(codec)) {
3948 hda_call_codec_suspend(codec);
3949 hda_call_codec_resume(codec);
3956 * snd_print_pcm_bits - Print the supported PCM fmt bits to the string buffer
3957 * @pcm: PCM caps bits
3958 * @buf: the string buffer to write
3959 * @buflen: the max buffer length
3961 * used by hda_proc.c and hda_eld.c
3963 void snd_print_pcm_bits(int pcm, char *buf, int buflen)
3965 static unsigned int bits[] = { 8, 16, 20, 24, 32 };
3968 for (i = 0, j = 0; i < ARRAY_SIZE(bits); i++)
3969 if (pcm & (AC_SUPPCM_BITS_8 << i))
3970 j += snprintf(buf + j, buflen - j, " %d", bits[i]);
3972 buf[j] = '\0'; /* necessary when j == 0 */
3974 EXPORT_SYMBOL_GPL(snd_print_pcm_bits);
3976 MODULE_DESCRIPTION("HDA codec core");
3977 MODULE_LICENSE("GPL");