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 <sound/driver.h>
23 #include <linux/init.h>
24 #include <linux/delay.h>
25 #include <linux/slab.h>
26 #include <linux/pci.h>
27 #include <linux/moduleparam.h>
28 #include <linux/mutex.h>
29 #include <sound/core.h>
30 #include "hda_codec.h"
31 #include <sound/asoundef.h>
32 #include <sound/tlv.h>
33 #include <sound/initval.h>
34 #include "hda_local.h"
37 MODULE_AUTHOR("Takashi Iwai <tiwai@suse.de>");
38 MODULE_DESCRIPTION("Universal interface for High Definition Audio Codec");
39 MODULE_LICENSE("GPL");
43 * vendor / preset table
46 struct hda_vendor_id {
51 /* codec vendor labels */
52 static struct hda_vendor_id hda_vendor_ids[] = {
53 { 0x10ec, "Realtek" },
54 { 0x1057, "Motorola" },
56 { 0x11d4, "Analog Devices" },
57 { 0x13f6, "C-Media" },
58 { 0x14f1, "Conexant" },
59 { 0x434d, "C-Media" },
60 { 0x8384, "SigmaTel" },
65 #include "hda_patch.h"
69 * snd_hda_codec_read - send a command and get the response
70 * @codec: the HDA codec
71 * @nid: NID to send the command
72 * @direct: direct flag
73 * @verb: the verb to send
74 * @parm: the parameter for the verb
76 * Send a single command and read the corresponding response.
78 * Returns the obtained response value, or -1 for an error.
80 unsigned int snd_hda_codec_read(struct hda_codec *codec, hda_nid_t nid, int direct,
81 unsigned int verb, unsigned int parm)
84 mutex_lock(&codec->bus->cmd_mutex);
85 if (! codec->bus->ops.command(codec, nid, direct, verb, parm))
86 res = codec->bus->ops.get_response(codec);
88 res = (unsigned int)-1;
89 mutex_unlock(&codec->bus->cmd_mutex);
93 EXPORT_SYMBOL(snd_hda_codec_read);
96 * snd_hda_codec_write - send a single command without waiting for response
97 * @codec: the HDA codec
98 * @nid: NID to send the command
99 * @direct: direct flag
100 * @verb: the verb to send
101 * @parm: the parameter for the verb
103 * Send a single command without waiting for response.
105 * Returns 0 if successful, or a negative error code.
107 int snd_hda_codec_write(struct hda_codec *codec, hda_nid_t nid, int direct,
108 unsigned int verb, unsigned int parm)
111 mutex_lock(&codec->bus->cmd_mutex);
112 err = codec->bus->ops.command(codec, nid, direct, verb, parm);
113 mutex_unlock(&codec->bus->cmd_mutex);
117 EXPORT_SYMBOL(snd_hda_codec_write);
120 * snd_hda_sequence_write - sequence writes
121 * @codec: the HDA codec
122 * @seq: VERB array to send
124 * Send the commands sequentially from the given array.
125 * The array must be terminated with NID=0.
127 void snd_hda_sequence_write(struct hda_codec *codec, const struct hda_verb *seq)
129 for (; seq->nid; seq++)
130 snd_hda_codec_write(codec, seq->nid, 0, seq->verb, seq->param);
133 EXPORT_SYMBOL(snd_hda_sequence_write);
136 * snd_hda_get_sub_nodes - get the range of sub nodes
137 * @codec: the HDA codec
139 * @start_id: the pointer to store the start NID
141 * Parse the NID and store the start NID of its sub-nodes.
142 * Returns the number of sub-nodes.
144 int snd_hda_get_sub_nodes(struct hda_codec *codec, hda_nid_t nid, hda_nid_t *start_id)
148 parm = snd_hda_param_read(codec, nid, AC_PAR_NODE_COUNT);
149 *start_id = (parm >> 16) & 0x7fff;
150 return (int)(parm & 0x7fff);
153 EXPORT_SYMBOL(snd_hda_get_sub_nodes);
156 * snd_hda_get_connections - get connection list
157 * @codec: the HDA codec
159 * @conn_list: connection list array
160 * @max_conns: max. number of connections to store
162 * Parses the connection list of the given widget and stores the list
165 * Returns the number of connections, or a negative error code.
167 int snd_hda_get_connections(struct hda_codec *codec, hda_nid_t nid,
168 hda_nid_t *conn_list, int max_conns)
171 int i, conn_len, conns;
172 unsigned int shift, num_elems, mask;
175 snd_assert(conn_list && max_conns > 0, return -EINVAL);
177 parm = snd_hda_param_read(codec, nid, AC_PAR_CONNLIST_LEN);
178 if (parm & AC_CLIST_LONG) {
187 conn_len = parm & AC_CLIST_LENGTH;
188 mask = (1 << (shift-1)) - 1;
191 return 0; /* no connection */
194 /* single connection */
195 parm = snd_hda_codec_read(codec, nid, 0, AC_VERB_GET_CONNECT_LIST, 0);
196 conn_list[0] = parm & mask;
200 /* multi connection */
203 for (i = 0; i < conn_len; i++) {
207 if (i % num_elems == 0)
208 parm = snd_hda_codec_read(codec, nid, 0,
209 AC_VERB_GET_CONNECT_LIST, i);
210 range_val = !! (parm & (1 << (shift-1))); /* ranges */
214 /* ranges between the previous and this one */
215 if (! prev_nid || prev_nid >= val) {
216 snd_printk(KERN_WARNING "hda_codec: invalid dep_range_val %x:%x\n", prev_nid, val);
219 for (n = prev_nid + 1; n <= val; n++) {
220 if (conns >= max_conns) {
221 snd_printk(KERN_ERR "Too many connections\n");
224 conn_list[conns++] = n;
227 if (conns >= max_conns) {
228 snd_printk(KERN_ERR "Too many connections\n");
231 conn_list[conns++] = val;
240 * snd_hda_queue_unsol_event - add an unsolicited event to queue
242 * @res: unsolicited event (lower 32bit of RIRB entry)
243 * @res_ex: codec addr and flags (upper 32bit or RIRB entry)
245 * Adds the given event to the queue. The events are processed in
246 * the workqueue asynchronously. Call this function in the interrupt
247 * hanlder when RIRB receives an unsolicited event.
249 * Returns 0 if successful, or a negative error code.
251 int snd_hda_queue_unsol_event(struct hda_bus *bus, u32 res, u32 res_ex)
253 struct hda_bus_unsolicited *unsol;
256 if ((unsol = bus->unsol) == NULL)
259 wp = (unsol->wp + 1) % HDA_UNSOL_QUEUE_SIZE;
263 unsol->queue[wp] = res;
264 unsol->queue[wp + 1] = res_ex;
266 schedule_work(&unsol->work);
271 EXPORT_SYMBOL(snd_hda_queue_unsol_event);
274 * process queueud unsolicited events
276 static void process_unsol_events(struct work_struct *work)
278 struct hda_bus_unsolicited *unsol =
279 container_of(work, struct hda_bus_unsolicited, work);
280 struct hda_bus *bus = unsol->bus;
281 struct hda_codec *codec;
282 unsigned int rp, caddr, res;
284 while (unsol->rp != unsol->wp) {
285 rp = (unsol->rp + 1) % HDA_UNSOL_QUEUE_SIZE;
288 res = unsol->queue[rp];
289 caddr = unsol->queue[rp + 1];
290 if (! (caddr & (1 << 4))) /* no unsolicited event? */
292 codec = bus->caddr_tbl[caddr & 0x0f];
293 if (codec && codec->patch_ops.unsol_event)
294 codec->patch_ops.unsol_event(codec, res);
299 * initialize unsolicited queue
301 static int init_unsol_queue(struct hda_bus *bus)
303 struct hda_bus_unsolicited *unsol;
305 if (bus->unsol) /* already initialized */
308 unsol = kzalloc(sizeof(*unsol), GFP_KERNEL);
310 snd_printk(KERN_ERR "hda_codec: can't allocate unsolicited queue\n");
313 INIT_WORK(&unsol->work, process_unsol_events);
322 static void snd_hda_codec_free(struct hda_codec *codec);
324 static int snd_hda_bus_free(struct hda_bus *bus)
326 struct list_head *p, *n;
331 flush_scheduled_work();
334 list_for_each_safe(p, n, &bus->codec_list) {
335 struct hda_codec *codec = list_entry(p, struct hda_codec, list);
336 snd_hda_codec_free(codec);
338 if (bus->ops.private_free)
339 bus->ops.private_free(bus);
344 static int snd_hda_bus_dev_free(struct snd_device *device)
346 struct hda_bus *bus = device->device_data;
347 return snd_hda_bus_free(bus);
351 * snd_hda_bus_new - create a HDA bus
352 * @card: the card entry
353 * @temp: the template for hda_bus information
354 * @busp: the pointer to store the created bus instance
356 * Returns 0 if successful, or a negative error code.
358 int snd_hda_bus_new(struct snd_card *card, const struct hda_bus_template *temp,
359 struct hda_bus **busp)
363 static struct snd_device_ops dev_ops = {
364 .dev_free = snd_hda_bus_dev_free,
367 snd_assert(temp, return -EINVAL);
368 snd_assert(temp->ops.command && temp->ops.get_response, return -EINVAL);
373 bus = kzalloc(sizeof(*bus), GFP_KERNEL);
375 snd_printk(KERN_ERR "can't allocate struct hda_bus\n");
380 bus->private_data = temp->private_data;
381 bus->pci = temp->pci;
382 bus->modelname = temp->modelname;
383 bus->ops = temp->ops;
385 mutex_init(&bus->cmd_mutex);
386 INIT_LIST_HEAD(&bus->codec_list);
388 if ((err = snd_device_new(card, SNDRV_DEV_BUS, bus, &dev_ops)) < 0) {
389 snd_hda_bus_free(bus);
397 EXPORT_SYMBOL(snd_hda_bus_new);
400 * find a matching codec preset
402 static const struct hda_codec_preset *find_codec_preset(struct hda_codec *codec)
404 const struct hda_codec_preset **tbl, *preset;
406 if (codec->bus->modelname && !strcmp(codec->bus->modelname, "generic"))
407 return NULL; /* use the generic parser */
409 for (tbl = hda_preset_tables; *tbl; tbl++) {
410 for (preset = *tbl; preset->id; preset++) {
411 u32 mask = preset->mask;
414 if (preset->id == (codec->vendor_id & mask) &&
416 preset->rev == codec->revision_id))
424 * snd_hda_get_codec_name - store the codec name
426 void snd_hda_get_codec_name(struct hda_codec *codec,
427 char *name, int namelen)
429 const struct hda_vendor_id *c;
430 const char *vendor = NULL;
431 u16 vendor_id = codec->vendor_id >> 16;
434 for (c = hda_vendor_ids; c->id; c++) {
435 if (c->id == vendor_id) {
441 sprintf(tmp, "Generic %04x", vendor_id);
444 if (codec->preset && codec->preset->name)
445 snprintf(name, namelen, "%s %s", vendor, codec->preset->name);
447 snprintf(name, namelen, "%s ID %x", vendor, codec->vendor_id & 0xffff);
451 * look for an AFG and MFG nodes
453 static void setup_fg_nodes(struct hda_codec *codec)
458 total_nodes = snd_hda_get_sub_nodes(codec, AC_NODE_ROOT, &nid);
459 for (i = 0; i < total_nodes; i++, nid++) {
460 switch((snd_hda_param_read(codec, nid, AC_PAR_FUNCTION_TYPE) & 0xff)) {
461 case AC_GRP_AUDIO_FUNCTION:
464 case AC_GRP_MODEM_FUNCTION:
474 * read widget caps for each widget and store in cache
476 static int read_widget_caps(struct hda_codec *codec, hda_nid_t fg_node)
481 codec->num_nodes = snd_hda_get_sub_nodes(codec, fg_node,
483 codec->wcaps = kmalloc(codec->num_nodes * 4, GFP_KERNEL);
486 nid = codec->start_nid;
487 for (i = 0; i < codec->num_nodes; i++, nid++)
488 codec->wcaps[i] = snd_hda_param_read(codec, nid,
489 AC_PAR_AUDIO_WIDGET_CAP);
497 static void snd_hda_codec_free(struct hda_codec *codec)
501 list_del(&codec->list);
502 codec->bus->caddr_tbl[codec->addr] = NULL;
503 if (codec->patch_ops.free)
504 codec->patch_ops.free(codec);
505 kfree(codec->amp_info);
510 static void init_amp_hash(struct hda_codec *codec);
513 * snd_hda_codec_new - create a HDA codec
514 * @bus: the bus to assign
515 * @codec_addr: the codec address
516 * @codecp: the pointer to store the generated codec
518 * Returns 0 if successful, or a negative error code.
520 int snd_hda_codec_new(struct hda_bus *bus, unsigned int codec_addr,
521 struct hda_codec **codecp)
523 struct hda_codec *codec;
527 snd_assert(bus, return -EINVAL);
528 snd_assert(codec_addr <= HDA_MAX_CODEC_ADDRESS, return -EINVAL);
530 if (bus->caddr_tbl[codec_addr]) {
531 snd_printk(KERN_ERR "hda_codec: address 0x%x is already occupied\n", codec_addr);
535 codec = kzalloc(sizeof(*codec), GFP_KERNEL);
537 snd_printk(KERN_ERR "can't allocate struct hda_codec\n");
542 codec->addr = codec_addr;
543 mutex_init(&codec->spdif_mutex);
544 init_amp_hash(codec);
546 list_add_tail(&codec->list, &bus->codec_list);
547 bus->caddr_tbl[codec_addr] = codec;
549 codec->vendor_id = snd_hda_param_read(codec, AC_NODE_ROOT, AC_PAR_VENDOR_ID);
550 if (codec->vendor_id == -1)
551 /* read again, hopefully the access method was corrected
552 * in the last read...
554 codec->vendor_id = snd_hda_param_read(codec, AC_NODE_ROOT,
556 codec->subsystem_id = snd_hda_param_read(codec, AC_NODE_ROOT, AC_PAR_SUBSYSTEM_ID);
557 codec->revision_id = snd_hda_param_read(codec, AC_NODE_ROOT, AC_PAR_REV_ID);
559 setup_fg_nodes(codec);
560 if (! codec->afg && ! codec->mfg) {
561 snd_printdd("hda_codec: no AFG or MFG node found\n");
562 snd_hda_codec_free(codec);
566 if (read_widget_caps(codec, codec->afg ? codec->afg : codec->mfg) < 0) {
567 snd_printk(KERN_ERR "hda_codec: cannot malloc\n");
568 snd_hda_codec_free(codec);
572 if (! codec->subsystem_id) {
573 hda_nid_t nid = codec->afg ? codec->afg : codec->mfg;
574 codec->subsystem_id = snd_hda_codec_read(codec, nid, 0,
575 AC_VERB_GET_SUBSYSTEM_ID,
579 codec->preset = find_codec_preset(codec);
580 if (! *bus->card->mixername)
581 snd_hda_get_codec_name(codec, bus->card->mixername,
582 sizeof(bus->card->mixername));
584 if (codec->preset && codec->preset->patch)
585 err = codec->preset->patch(codec);
587 err = snd_hda_parse_generic_codec(codec);
589 snd_hda_codec_free(codec);
593 if (codec->patch_ops.unsol_event)
594 init_unsol_queue(bus);
596 snd_hda_codec_proc_new(codec);
598 sprintf(component, "HDA:%08x", codec->vendor_id);
599 snd_component_add(codec->bus->card, component);
606 EXPORT_SYMBOL(snd_hda_codec_new);
609 * snd_hda_codec_setup_stream - set up the codec for streaming
610 * @codec: the CODEC to set up
611 * @nid: the NID to set up
612 * @stream_tag: stream tag to pass, it's between 0x1 and 0xf.
613 * @channel_id: channel id to pass, zero based.
614 * @format: stream format.
616 void snd_hda_codec_setup_stream(struct hda_codec *codec, hda_nid_t nid, u32 stream_tag,
617 int channel_id, int format)
622 snd_printdd("hda_codec_setup_stream: NID=0x%x, stream=0x%x, channel=%d, format=0x%x\n",
623 nid, stream_tag, channel_id, format);
624 snd_hda_codec_write(codec, nid, 0, AC_VERB_SET_CHANNEL_STREAMID,
625 (stream_tag << 4) | channel_id);
627 snd_hda_codec_write(codec, nid, 0, AC_VERB_SET_STREAM_FORMAT, format);
630 EXPORT_SYMBOL(snd_hda_codec_setup_stream);
633 * amp access functions
636 /* FIXME: more better hash key? */
637 #define HDA_HASH_KEY(nid,dir,idx) (u32)((nid) + ((idx) << 16) + ((dir) << 24))
638 #define INFO_AMP_CAPS (1<<0)
639 #define INFO_AMP_VOL(ch) (1 << (1 + (ch)))
641 /* initialize the hash table */
642 static void init_amp_hash(struct hda_codec *codec)
644 memset(codec->amp_hash, 0xff, sizeof(codec->amp_hash));
645 codec->num_amp_entries = 0;
646 codec->amp_info_size = 0;
647 codec->amp_info = NULL;
650 /* query the hash. allocate an entry if not found. */
651 static struct hda_amp_info *get_alloc_amp_hash(struct hda_codec *codec, u32 key)
653 u16 idx = key % (u16)ARRAY_SIZE(codec->amp_hash);
654 u16 cur = codec->amp_hash[idx];
655 struct hda_amp_info *info;
657 while (cur != 0xffff) {
658 info = &codec->amp_info[cur];
659 if (info->key == key)
664 /* add a new hash entry */
665 if (codec->num_amp_entries >= codec->amp_info_size) {
666 /* reallocate the array */
667 int new_size = codec->amp_info_size + 64;
668 struct hda_amp_info *new_info = kcalloc(new_size, sizeof(struct hda_amp_info),
671 snd_printk(KERN_ERR "hda_codec: can't malloc amp_info\n");
674 if (codec->amp_info) {
675 memcpy(new_info, codec->amp_info,
676 codec->amp_info_size * sizeof(struct hda_amp_info));
677 kfree(codec->amp_info);
679 codec->amp_info_size = new_size;
680 codec->amp_info = new_info;
682 cur = codec->num_amp_entries++;
683 info = &codec->amp_info[cur];
685 info->status = 0; /* not initialized yet */
686 info->next = codec->amp_hash[idx];
687 codec->amp_hash[idx] = cur;
693 * query AMP capabilities for the given widget and direction
695 static u32 query_amp_caps(struct hda_codec *codec, hda_nid_t nid, int direction)
697 struct hda_amp_info *info = get_alloc_amp_hash(codec, HDA_HASH_KEY(nid, direction, 0));
701 if (! (info->status & INFO_AMP_CAPS)) {
702 if (! (get_wcaps(codec, nid) & AC_WCAP_AMP_OVRD))
704 info->amp_caps = snd_hda_param_read(codec, nid, direction == HDA_OUTPUT ?
705 AC_PAR_AMP_OUT_CAP : AC_PAR_AMP_IN_CAP);
706 info->status |= INFO_AMP_CAPS;
708 return info->amp_caps;
712 * read the current volume to info
713 * if the cache exists, read the cache value.
715 static unsigned int get_vol_mute(struct hda_codec *codec, struct hda_amp_info *info,
716 hda_nid_t nid, int ch, int direction, int index)
720 if (info->status & INFO_AMP_VOL(ch))
721 return info->vol[ch];
723 parm = ch ? AC_AMP_GET_RIGHT : AC_AMP_GET_LEFT;
724 parm |= direction == HDA_OUTPUT ? AC_AMP_GET_OUTPUT : AC_AMP_GET_INPUT;
726 val = snd_hda_codec_read(codec, nid, 0, AC_VERB_GET_AMP_GAIN_MUTE, parm);
727 info->vol[ch] = val & 0xff;
728 info->status |= INFO_AMP_VOL(ch);
729 return info->vol[ch];
733 * write the current volume in info to the h/w and update the cache
735 static void put_vol_mute(struct hda_codec *codec, struct hda_amp_info *info,
736 hda_nid_t nid, int ch, int direction, int index, int val)
740 parm = ch ? AC_AMP_SET_RIGHT : AC_AMP_SET_LEFT;
741 parm |= direction == HDA_OUTPUT ? AC_AMP_SET_OUTPUT : AC_AMP_SET_INPUT;
742 parm |= index << AC_AMP_SET_INDEX_SHIFT;
744 snd_hda_codec_write(codec, nid, 0, AC_VERB_SET_AMP_GAIN_MUTE, parm);
749 * read AMP value. The volume is between 0 to 0x7f, 0x80 = mute bit.
751 int snd_hda_codec_amp_read(struct hda_codec *codec, hda_nid_t nid, int ch,
752 int direction, int index)
754 struct hda_amp_info *info = get_alloc_amp_hash(codec, HDA_HASH_KEY(nid, direction, index));
757 return get_vol_mute(codec, info, nid, ch, direction, index);
761 * update the AMP value, mask = bit mask to set, val = the value
763 int snd_hda_codec_amp_update(struct hda_codec *codec, hda_nid_t nid, int ch,
764 int direction, int idx, int mask, int val)
766 struct hda_amp_info *info = get_alloc_amp_hash(codec, HDA_HASH_KEY(nid, direction, idx));
771 val |= get_vol_mute(codec, info, nid, ch, direction, idx) & ~mask;
772 if (info->vol[ch] == val && ! codec->in_resume)
774 put_vol_mute(codec, info, nid, ch, direction, idx, val);
780 * AMP control callbacks
782 /* retrieve parameters from private_value */
783 #define get_amp_nid(kc) ((kc)->private_value & 0xffff)
784 #define get_amp_channels(kc) (((kc)->private_value >> 16) & 0x3)
785 #define get_amp_direction(kc) (((kc)->private_value >> 18) & 0x1)
786 #define get_amp_index(kc) (((kc)->private_value >> 19) & 0xf)
789 int snd_hda_mixer_amp_volume_info(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
791 struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
792 u16 nid = get_amp_nid(kcontrol);
793 u8 chs = get_amp_channels(kcontrol);
794 int dir = get_amp_direction(kcontrol);
797 caps = query_amp_caps(codec, nid, dir);
798 caps = (caps & AC_AMPCAP_NUM_STEPS) >> AC_AMPCAP_NUM_STEPS_SHIFT; /* num steps */
800 printk(KERN_WARNING "hda_codec: num_steps = 0 for NID=0x%x\n", nid);
803 uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
804 uinfo->count = chs == 3 ? 2 : 1;
805 uinfo->value.integer.min = 0;
806 uinfo->value.integer.max = caps;
810 int snd_hda_mixer_amp_volume_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
812 struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
813 hda_nid_t nid = get_amp_nid(kcontrol);
814 int chs = get_amp_channels(kcontrol);
815 int dir = get_amp_direction(kcontrol);
816 int idx = get_amp_index(kcontrol);
817 long *valp = ucontrol->value.integer.value;
820 *valp++ = snd_hda_codec_amp_read(codec, nid, 0, dir, idx) & 0x7f;
822 *valp = snd_hda_codec_amp_read(codec, nid, 1, dir, idx) & 0x7f;
826 int snd_hda_mixer_amp_volume_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
828 struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
829 hda_nid_t nid = get_amp_nid(kcontrol);
830 int chs = get_amp_channels(kcontrol);
831 int dir = get_amp_direction(kcontrol);
832 int idx = get_amp_index(kcontrol);
833 long *valp = ucontrol->value.integer.value;
837 change = snd_hda_codec_amp_update(codec, nid, 0, dir, idx,
842 change |= snd_hda_codec_amp_update(codec, nid, 1, dir, idx,
847 int snd_hda_mixer_amp_tlv(struct snd_kcontrol *kcontrol, int op_flag,
848 unsigned int size, unsigned int __user *_tlv)
850 struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
851 hda_nid_t nid = get_amp_nid(kcontrol);
852 int dir = get_amp_direction(kcontrol);
853 u32 caps, val1, val2;
855 if (size < 4 * sizeof(unsigned int))
857 caps = query_amp_caps(codec, nid, dir);
858 val2 = (((caps & AC_AMPCAP_STEP_SIZE) >> AC_AMPCAP_STEP_SIZE_SHIFT) + 1) * 25;
859 val1 = -((caps & AC_AMPCAP_OFFSET) >> AC_AMPCAP_OFFSET_SHIFT);
860 val1 = ((int)val1) * ((int)val2);
861 if (put_user(SNDRV_CTL_TLVT_DB_SCALE, _tlv))
863 if (put_user(2 * sizeof(unsigned int), _tlv + 1))
865 if (put_user(val1, _tlv + 2))
867 if (put_user(val2, _tlv + 3))
873 int snd_hda_mixer_amp_switch_info(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
875 int chs = get_amp_channels(kcontrol);
877 uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN;
878 uinfo->count = chs == 3 ? 2 : 1;
879 uinfo->value.integer.min = 0;
880 uinfo->value.integer.max = 1;
884 int snd_hda_mixer_amp_switch_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
886 struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
887 hda_nid_t nid = get_amp_nid(kcontrol);
888 int chs = get_amp_channels(kcontrol);
889 int dir = get_amp_direction(kcontrol);
890 int idx = get_amp_index(kcontrol);
891 long *valp = ucontrol->value.integer.value;
894 *valp++ = (snd_hda_codec_amp_read(codec, nid, 0, dir, idx) & 0x80) ? 0 : 1;
896 *valp = (snd_hda_codec_amp_read(codec, nid, 1, dir, idx) & 0x80) ? 0 : 1;
900 int snd_hda_mixer_amp_switch_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
902 struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
903 hda_nid_t nid = get_amp_nid(kcontrol);
904 int chs = get_amp_channels(kcontrol);
905 int dir = get_amp_direction(kcontrol);
906 int idx = get_amp_index(kcontrol);
907 long *valp = ucontrol->value.integer.value;
911 change = snd_hda_codec_amp_update(codec, nid, 0, dir, idx,
912 0x80, *valp ? 0 : 0x80);
916 change |= snd_hda_codec_amp_update(codec, nid, 1, dir, idx,
917 0x80, *valp ? 0 : 0x80);
923 * bound volume controls
925 * bind multiple volumes (# indices, from 0)
928 #define AMP_VAL_IDX_SHIFT 19
929 #define AMP_VAL_IDX_MASK (0x0f<<19)
931 int snd_hda_mixer_bind_switch_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
933 struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
937 mutex_lock(&codec->spdif_mutex); /* reuse spdif_mutex */
938 pval = kcontrol->private_value;
939 kcontrol->private_value = pval & ~AMP_VAL_IDX_MASK; /* index 0 */
940 err = snd_hda_mixer_amp_switch_get(kcontrol, ucontrol);
941 kcontrol->private_value = pval;
942 mutex_unlock(&codec->spdif_mutex);
946 int snd_hda_mixer_bind_switch_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
948 struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
950 int i, indices, err = 0, change = 0;
952 mutex_lock(&codec->spdif_mutex); /* reuse spdif_mutex */
953 pval = kcontrol->private_value;
954 indices = (pval & AMP_VAL_IDX_MASK) >> AMP_VAL_IDX_SHIFT;
955 for (i = 0; i < indices; i++) {
956 kcontrol->private_value = (pval & ~AMP_VAL_IDX_MASK) | (i << AMP_VAL_IDX_SHIFT);
957 err = snd_hda_mixer_amp_switch_put(kcontrol, ucontrol);
962 kcontrol->private_value = pval;
963 mutex_unlock(&codec->spdif_mutex);
964 return err < 0 ? err : change;
971 static int snd_hda_spdif_mask_info(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
973 uinfo->type = SNDRV_CTL_ELEM_TYPE_IEC958;
978 static int snd_hda_spdif_cmask_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
980 ucontrol->value.iec958.status[0] = IEC958_AES0_PROFESSIONAL |
981 IEC958_AES0_NONAUDIO |
982 IEC958_AES0_CON_EMPHASIS_5015 |
983 IEC958_AES0_CON_NOT_COPYRIGHT;
984 ucontrol->value.iec958.status[1] = IEC958_AES1_CON_CATEGORY |
985 IEC958_AES1_CON_ORIGINAL;
989 static int snd_hda_spdif_pmask_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
991 ucontrol->value.iec958.status[0] = IEC958_AES0_PROFESSIONAL |
992 IEC958_AES0_NONAUDIO |
993 IEC958_AES0_PRO_EMPHASIS_5015;
997 static int snd_hda_spdif_default_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
999 struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
1001 ucontrol->value.iec958.status[0] = codec->spdif_status & 0xff;
1002 ucontrol->value.iec958.status[1] = (codec->spdif_status >> 8) & 0xff;
1003 ucontrol->value.iec958.status[2] = (codec->spdif_status >> 16) & 0xff;
1004 ucontrol->value.iec958.status[3] = (codec->spdif_status >> 24) & 0xff;
1009 /* convert from SPDIF status bits to HDA SPDIF bits
1010 * bit 0 (DigEn) is always set zero (to be filled later)
1012 static unsigned short convert_from_spdif_status(unsigned int sbits)
1014 unsigned short val = 0;
1016 if (sbits & IEC958_AES0_PROFESSIONAL)
1018 if (sbits & IEC958_AES0_NONAUDIO)
1020 if (sbits & IEC958_AES0_PROFESSIONAL) {
1021 if ((sbits & IEC958_AES0_PRO_EMPHASIS) == IEC958_AES0_PRO_EMPHASIS_5015)
1024 if ((sbits & IEC958_AES0_CON_EMPHASIS) == IEC958_AES0_CON_EMPHASIS_5015)
1026 if (! (sbits & IEC958_AES0_CON_NOT_COPYRIGHT))
1028 if (sbits & (IEC958_AES1_CON_ORIGINAL << 8))
1030 val |= sbits & (IEC958_AES1_CON_CATEGORY << 8);
1035 /* convert to SPDIF status bits from HDA SPDIF bits
1037 static unsigned int convert_to_spdif_status(unsigned short val)
1039 unsigned int sbits = 0;
1042 sbits |= IEC958_AES0_NONAUDIO;
1044 sbits |= IEC958_AES0_PROFESSIONAL;
1045 if (sbits & IEC958_AES0_PROFESSIONAL) {
1046 if (sbits & (1 << 3))
1047 sbits |= IEC958_AES0_PRO_EMPHASIS_5015;
1050 sbits |= IEC958_AES0_CON_EMPHASIS_5015;
1051 if (! (val & (1 << 4)))
1052 sbits |= IEC958_AES0_CON_NOT_COPYRIGHT;
1054 sbits |= (IEC958_AES1_CON_ORIGINAL << 8);
1055 sbits |= val & (0x7f << 8);
1060 static int snd_hda_spdif_default_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
1062 struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
1063 hda_nid_t nid = kcontrol->private_value;
1067 mutex_lock(&codec->spdif_mutex);
1068 codec->spdif_status = ucontrol->value.iec958.status[0] |
1069 ((unsigned int)ucontrol->value.iec958.status[1] << 8) |
1070 ((unsigned int)ucontrol->value.iec958.status[2] << 16) |
1071 ((unsigned int)ucontrol->value.iec958.status[3] << 24);
1072 val = convert_from_spdif_status(codec->spdif_status);
1073 val |= codec->spdif_ctls & 1;
1074 change = codec->spdif_ctls != val;
1075 codec->spdif_ctls = val;
1077 if (change || codec->in_resume) {
1078 snd_hda_codec_write(codec, nid, 0, AC_VERB_SET_DIGI_CONVERT_1, val & 0xff);
1079 snd_hda_codec_write(codec, nid, 0, AC_VERB_SET_DIGI_CONVERT_2, val >> 8);
1082 mutex_unlock(&codec->spdif_mutex);
1086 static int snd_hda_spdif_out_switch_info(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
1088 uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN;
1090 uinfo->value.integer.min = 0;
1091 uinfo->value.integer.max = 1;
1095 static int snd_hda_spdif_out_switch_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
1097 struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
1099 ucontrol->value.integer.value[0] = codec->spdif_ctls & 1;
1103 static int snd_hda_spdif_out_switch_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
1105 struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
1106 hda_nid_t nid = kcontrol->private_value;
1110 mutex_lock(&codec->spdif_mutex);
1111 val = codec->spdif_ctls & ~1;
1112 if (ucontrol->value.integer.value[0])
1114 change = codec->spdif_ctls != val;
1115 if (change || codec->in_resume) {
1116 codec->spdif_ctls = val;
1117 snd_hda_codec_write(codec, nid, 0, AC_VERB_SET_DIGI_CONVERT_1, val & 0xff);
1118 snd_hda_codec_write(codec, nid, 0, AC_VERB_SET_AMP_GAIN_MUTE,
1119 AC_AMP_SET_RIGHT | AC_AMP_SET_LEFT |
1120 AC_AMP_SET_OUTPUT | ((val & 1) ? 0 : 0x80));
1122 mutex_unlock(&codec->spdif_mutex);
1126 static struct snd_kcontrol_new dig_mixes[] = {
1128 .access = SNDRV_CTL_ELEM_ACCESS_READ,
1129 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
1130 .name = SNDRV_CTL_NAME_IEC958("",PLAYBACK,CON_MASK),
1131 .info = snd_hda_spdif_mask_info,
1132 .get = snd_hda_spdif_cmask_get,
1135 .access = SNDRV_CTL_ELEM_ACCESS_READ,
1136 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
1137 .name = SNDRV_CTL_NAME_IEC958("",PLAYBACK,PRO_MASK),
1138 .info = snd_hda_spdif_mask_info,
1139 .get = snd_hda_spdif_pmask_get,
1142 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
1143 .name = SNDRV_CTL_NAME_IEC958("",PLAYBACK,DEFAULT),
1144 .info = snd_hda_spdif_mask_info,
1145 .get = snd_hda_spdif_default_get,
1146 .put = snd_hda_spdif_default_put,
1149 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
1150 .name = SNDRV_CTL_NAME_IEC958("",PLAYBACK,SWITCH),
1151 .info = snd_hda_spdif_out_switch_info,
1152 .get = snd_hda_spdif_out_switch_get,
1153 .put = snd_hda_spdif_out_switch_put,
1159 * snd_hda_create_spdif_out_ctls - create Output SPDIF-related controls
1160 * @codec: the HDA codec
1161 * @nid: audio out widget NID
1163 * Creates controls related with the SPDIF output.
1164 * Called from each patch supporting the SPDIF out.
1166 * Returns 0 if successful, or a negative error code.
1168 int snd_hda_create_spdif_out_ctls(struct hda_codec *codec, hda_nid_t nid)
1171 struct snd_kcontrol *kctl;
1172 struct snd_kcontrol_new *dig_mix;
1174 for (dig_mix = dig_mixes; dig_mix->name; dig_mix++) {
1175 kctl = snd_ctl_new1(dig_mix, codec);
1176 kctl->private_value = nid;
1177 if ((err = snd_ctl_add(codec->bus->card, kctl)) < 0)
1180 codec->spdif_ctls = snd_hda_codec_read(codec, nid, 0, AC_VERB_GET_DIGI_CONVERT, 0);
1181 codec->spdif_status = convert_to_spdif_status(codec->spdif_ctls);
1189 #define snd_hda_spdif_in_switch_info snd_hda_spdif_out_switch_info
1191 static int snd_hda_spdif_in_switch_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
1193 struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
1195 ucontrol->value.integer.value[0] = codec->spdif_in_enable;
1199 static int snd_hda_spdif_in_switch_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
1201 struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
1202 hda_nid_t nid = kcontrol->private_value;
1203 unsigned int val = !!ucontrol->value.integer.value[0];
1206 mutex_lock(&codec->spdif_mutex);
1207 change = codec->spdif_in_enable != val;
1208 if (change || codec->in_resume) {
1209 codec->spdif_in_enable = val;
1210 snd_hda_codec_write(codec, nid, 0, AC_VERB_SET_DIGI_CONVERT_1, val);
1212 mutex_unlock(&codec->spdif_mutex);
1216 static int snd_hda_spdif_in_status_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
1218 struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
1219 hda_nid_t nid = kcontrol->private_value;
1223 val = snd_hda_codec_read(codec, nid, 0, AC_VERB_GET_DIGI_CONVERT, 0);
1224 sbits = convert_to_spdif_status(val);
1225 ucontrol->value.iec958.status[0] = sbits;
1226 ucontrol->value.iec958.status[1] = sbits >> 8;
1227 ucontrol->value.iec958.status[2] = sbits >> 16;
1228 ucontrol->value.iec958.status[3] = sbits >> 24;
1232 static struct snd_kcontrol_new dig_in_ctls[] = {
1234 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
1235 .name = SNDRV_CTL_NAME_IEC958("",CAPTURE,SWITCH),
1236 .info = snd_hda_spdif_in_switch_info,
1237 .get = snd_hda_spdif_in_switch_get,
1238 .put = snd_hda_spdif_in_switch_put,
1241 .access = SNDRV_CTL_ELEM_ACCESS_READ,
1242 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
1243 .name = SNDRV_CTL_NAME_IEC958("",CAPTURE,DEFAULT),
1244 .info = snd_hda_spdif_mask_info,
1245 .get = snd_hda_spdif_in_status_get,
1251 * snd_hda_create_spdif_in_ctls - create Input SPDIF-related controls
1252 * @codec: the HDA codec
1253 * @nid: audio in widget NID
1255 * Creates controls related with the SPDIF input.
1256 * Called from each patch supporting the SPDIF in.
1258 * Returns 0 if successful, or a negative error code.
1260 int snd_hda_create_spdif_in_ctls(struct hda_codec *codec, hda_nid_t nid)
1263 struct snd_kcontrol *kctl;
1264 struct snd_kcontrol_new *dig_mix;
1266 for (dig_mix = dig_in_ctls; dig_mix->name; dig_mix++) {
1267 kctl = snd_ctl_new1(dig_mix, codec);
1268 kctl->private_value = nid;
1269 if ((err = snd_ctl_add(codec->bus->card, kctl)) < 0)
1272 codec->spdif_in_enable = snd_hda_codec_read(codec, nid, 0, AC_VERB_GET_DIGI_CONVERT, 0) & 1;
1278 * set power state of the codec
1280 static void hda_set_power_state(struct hda_codec *codec, hda_nid_t fg,
1281 unsigned int power_state)
1283 hda_nid_t nid, nid_start;
1286 snd_hda_codec_write(codec, fg, 0, AC_VERB_SET_POWER_STATE,
1289 nodes = snd_hda_get_sub_nodes(codec, fg, &nid_start);
1290 for (nid = nid_start; nid < nodes + nid_start; nid++) {
1291 if (get_wcaps(codec, nid) & AC_WCAP_POWER)
1292 snd_hda_codec_write(codec, nid, 0,
1293 AC_VERB_SET_POWER_STATE,
1297 if (power_state == AC_PWRST_D0)
1303 * snd_hda_build_controls - build mixer controls
1306 * Creates mixer controls for each codec included in the bus.
1308 * Returns 0 if successful, otherwise a negative error code.
1310 int snd_hda_build_controls(struct hda_bus *bus)
1312 struct list_head *p;
1314 /* build controls */
1315 list_for_each(p, &bus->codec_list) {
1316 struct hda_codec *codec = list_entry(p, struct hda_codec, list);
1318 if (! codec->patch_ops.build_controls)
1320 err = codec->patch_ops.build_controls(codec);
1326 list_for_each(p, &bus->codec_list) {
1327 struct hda_codec *codec = list_entry(p, struct hda_codec, list);
1329 hda_set_power_state(codec,
1330 codec->afg ? codec->afg : codec->mfg,
1332 if (! codec->patch_ops.init)
1334 err = codec->patch_ops.init(codec);
1341 EXPORT_SYMBOL(snd_hda_build_controls);
1346 struct hda_rate_tbl {
1348 unsigned int alsa_bits;
1349 unsigned int hda_fmt;
1352 static struct hda_rate_tbl rate_bits[] = {
1353 /* rate in Hz, ALSA rate bitmask, HDA format value */
1355 /* autodetected value used in snd_hda_query_supported_pcm */
1356 { 8000, SNDRV_PCM_RATE_8000, 0x0500 }, /* 1/6 x 48 */
1357 { 11025, SNDRV_PCM_RATE_11025, 0x4300 }, /* 1/4 x 44 */
1358 { 16000, SNDRV_PCM_RATE_16000, 0x0200 }, /* 1/3 x 48 */
1359 { 22050, SNDRV_PCM_RATE_22050, 0x4100 }, /* 1/2 x 44 */
1360 { 32000, SNDRV_PCM_RATE_32000, 0x0a00 }, /* 2/3 x 48 */
1361 { 44100, SNDRV_PCM_RATE_44100, 0x4000 }, /* 44 */
1362 { 48000, SNDRV_PCM_RATE_48000, 0x0000 }, /* 48 */
1363 { 88200, SNDRV_PCM_RATE_88200, 0x4800 }, /* 2 x 44 */
1364 { 96000, SNDRV_PCM_RATE_96000, 0x0800 }, /* 2 x 48 */
1365 { 176400, SNDRV_PCM_RATE_176400, 0x5800 },/* 4 x 44 */
1366 { 192000, SNDRV_PCM_RATE_192000, 0x1800 }, /* 4 x 48 */
1368 { 0 } /* terminator */
1372 * snd_hda_calc_stream_format - calculate format bitset
1373 * @rate: the sample rate
1374 * @channels: the number of channels
1375 * @format: the PCM format (SNDRV_PCM_FORMAT_XXX)
1376 * @maxbps: the max. bps
1378 * Calculate the format bitset from the given rate, channels and th PCM format.
1380 * Return zero if invalid.
1382 unsigned int snd_hda_calc_stream_format(unsigned int rate,
1383 unsigned int channels,
1384 unsigned int format,
1385 unsigned int maxbps)
1388 unsigned int val = 0;
1390 for (i = 0; rate_bits[i].hz; i++)
1391 if (rate_bits[i].hz == rate) {
1392 val = rate_bits[i].hda_fmt;
1395 if (! rate_bits[i].hz) {
1396 snd_printdd("invalid rate %d\n", rate);
1400 if (channels == 0 || channels > 8) {
1401 snd_printdd("invalid channels %d\n", channels);
1404 val |= channels - 1;
1406 switch (snd_pcm_format_width(format)) {
1407 case 8: val |= 0x00; break;
1408 case 16: val |= 0x10; break;
1414 else if (maxbps >= 24)
1420 snd_printdd("invalid format width %d\n", snd_pcm_format_width(format));
1427 EXPORT_SYMBOL(snd_hda_calc_stream_format);
1430 * snd_hda_query_supported_pcm - query the supported PCM rates and formats
1431 * @codec: the HDA codec
1432 * @nid: NID to query
1433 * @ratesp: the pointer to store the detected rate bitflags
1434 * @formatsp: the pointer to store the detected formats
1435 * @bpsp: the pointer to store the detected format widths
1437 * Queries the supported PCM rates and formats. The NULL @ratesp, @formatsp
1438 * or @bsps argument is ignored.
1440 * Returns 0 if successful, otherwise a negative error code.
1442 int snd_hda_query_supported_pcm(struct hda_codec *codec, hda_nid_t nid,
1443 u32 *ratesp, u64 *formatsp, unsigned int *bpsp)
1446 unsigned int val, streams;
1449 if (nid != codec->afg &&
1450 (get_wcaps(codec, nid) & AC_WCAP_FORMAT_OVRD)) {
1451 val = snd_hda_param_read(codec, nid, AC_PAR_PCM);
1456 val = snd_hda_param_read(codec, codec->afg, AC_PAR_PCM);
1460 for (i = 0; rate_bits[i].hz; i++) {
1462 rates |= rate_bits[i].alsa_bits;
1467 if (formatsp || bpsp) {
1472 wcaps = get_wcaps(codec, nid);
1473 streams = snd_hda_param_read(codec, nid, AC_PAR_STREAM);
1477 streams = snd_hda_param_read(codec, codec->afg, AC_PAR_STREAM);
1483 if (streams & AC_SUPFMT_PCM) {
1484 if (val & AC_SUPPCM_BITS_8) {
1485 formats |= SNDRV_PCM_FMTBIT_U8;
1488 if (val & AC_SUPPCM_BITS_16) {
1489 formats |= SNDRV_PCM_FMTBIT_S16_LE;
1492 if (wcaps & AC_WCAP_DIGITAL) {
1493 if (val & AC_SUPPCM_BITS_32)
1494 formats |= SNDRV_PCM_FMTBIT_IEC958_SUBFRAME_LE;
1495 if (val & (AC_SUPPCM_BITS_20|AC_SUPPCM_BITS_24))
1496 formats |= SNDRV_PCM_FMTBIT_S32_LE;
1497 if (val & AC_SUPPCM_BITS_24)
1499 else if (val & AC_SUPPCM_BITS_20)
1501 } else if (val & (AC_SUPPCM_BITS_20|AC_SUPPCM_BITS_24|AC_SUPPCM_BITS_32)) {
1502 formats |= SNDRV_PCM_FMTBIT_S32_LE;
1503 if (val & AC_SUPPCM_BITS_32)
1505 else if (val & AC_SUPPCM_BITS_24)
1507 else if (val & AC_SUPPCM_BITS_20)
1511 else if (streams == AC_SUPFMT_FLOAT32) { /* should be exclusive */
1512 formats |= SNDRV_PCM_FMTBIT_FLOAT_LE;
1514 } else if (streams == AC_SUPFMT_AC3) { /* should be exclusive */
1515 /* temporary hack: we have still no proper support
1516 * for the direct AC3 stream...
1518 formats |= SNDRV_PCM_FMTBIT_U8;
1522 *formatsp = formats;
1531 * snd_hda_is_supported_format - check whether the given node supports the format val
1533 * Returns 1 if supported, 0 if not.
1535 int snd_hda_is_supported_format(struct hda_codec *codec, hda_nid_t nid,
1536 unsigned int format)
1539 unsigned int val = 0, rate, stream;
1541 if (nid != codec->afg &&
1542 (get_wcaps(codec, nid) & AC_WCAP_FORMAT_OVRD)) {
1543 val = snd_hda_param_read(codec, nid, AC_PAR_PCM);
1548 val = snd_hda_param_read(codec, codec->afg, AC_PAR_PCM);
1553 rate = format & 0xff00;
1554 for (i = 0; rate_bits[i].hz; i++)
1555 if (rate_bits[i].hda_fmt == rate) {
1560 if (! rate_bits[i].hz)
1563 stream = snd_hda_param_read(codec, nid, AC_PAR_STREAM);
1566 if (! stream && nid != codec->afg)
1567 stream = snd_hda_param_read(codec, codec->afg, AC_PAR_STREAM);
1568 if (! stream || stream == -1)
1571 if (stream & AC_SUPFMT_PCM) {
1572 switch (format & 0xf0) {
1574 if (! (val & AC_SUPPCM_BITS_8))
1578 if (! (val & AC_SUPPCM_BITS_16))
1582 if (! (val & AC_SUPPCM_BITS_20))
1586 if (! (val & AC_SUPPCM_BITS_24))
1590 if (! (val & AC_SUPPCM_BITS_32))
1597 /* FIXME: check for float32 and AC3? */
1606 static int hda_pcm_default_open_close(struct hda_pcm_stream *hinfo,
1607 struct hda_codec *codec,
1608 struct snd_pcm_substream *substream)
1613 static int hda_pcm_default_prepare(struct hda_pcm_stream *hinfo,
1614 struct hda_codec *codec,
1615 unsigned int stream_tag,
1616 unsigned int format,
1617 struct snd_pcm_substream *substream)
1619 snd_hda_codec_setup_stream(codec, hinfo->nid, stream_tag, 0, format);
1623 static int hda_pcm_default_cleanup(struct hda_pcm_stream *hinfo,
1624 struct hda_codec *codec,
1625 struct snd_pcm_substream *substream)
1627 snd_hda_codec_setup_stream(codec, hinfo->nid, 0, 0, 0);
1631 static int set_pcm_default_values(struct hda_codec *codec, struct hda_pcm_stream *info)
1634 /* query support PCM information from the given NID */
1635 if (! info->rates || ! info->formats)
1636 snd_hda_query_supported_pcm(codec, info->nid,
1637 info->rates ? NULL : &info->rates,
1638 info->formats ? NULL : &info->formats,
1639 info->maxbps ? NULL : &info->maxbps);
1641 if (info->ops.open == NULL)
1642 info->ops.open = hda_pcm_default_open_close;
1643 if (info->ops.close == NULL)
1644 info->ops.close = hda_pcm_default_open_close;
1645 if (info->ops.prepare == NULL) {
1646 snd_assert(info->nid, return -EINVAL);
1647 info->ops.prepare = hda_pcm_default_prepare;
1649 if (info->ops.cleanup == NULL) {
1650 snd_assert(info->nid, return -EINVAL);
1651 info->ops.cleanup = hda_pcm_default_cleanup;
1657 * snd_hda_build_pcms - build PCM information
1660 * Create PCM information for each codec included in the bus.
1662 * The build_pcms codec patch is requested to set up codec->num_pcms and
1663 * codec->pcm_info properly. The array is referred by the top-level driver
1664 * to create its PCM instances.
1665 * The allocated codec->pcm_info should be released in codec->patch_ops.free
1668 * At least, substreams, channels_min and channels_max must be filled for
1669 * each stream. substreams = 0 indicates that the stream doesn't exist.
1670 * When rates and/or formats are zero, the supported values are queried
1671 * from the given nid. The nid is used also by the default ops.prepare
1672 * and ops.cleanup callbacks.
1674 * The driver needs to call ops.open in its open callback. Similarly,
1675 * ops.close is supposed to be called in the close callback.
1676 * ops.prepare should be called in the prepare or hw_params callback
1677 * with the proper parameters for set up.
1678 * ops.cleanup should be called in hw_free for clean up of streams.
1680 * This function returns 0 if successfull, or a negative error code.
1682 int snd_hda_build_pcms(struct hda_bus *bus)
1684 struct list_head *p;
1686 list_for_each(p, &bus->codec_list) {
1687 struct hda_codec *codec = list_entry(p, struct hda_codec, list);
1688 unsigned int pcm, s;
1690 if (! codec->patch_ops.build_pcms)
1692 err = codec->patch_ops.build_pcms(codec);
1695 for (pcm = 0; pcm < codec->num_pcms; pcm++) {
1696 for (s = 0; s < 2; s++) {
1697 struct hda_pcm_stream *info;
1698 info = &codec->pcm_info[pcm].stream[s];
1699 if (! info->substreams)
1701 err = set_pcm_default_values(codec, info);
1710 EXPORT_SYMBOL(snd_hda_build_pcms);
1713 * snd_hda_check_board_config - compare the current codec with the config table
1714 * @codec: the HDA codec
1715 * @num_configs: number of config enums
1716 * @models: array of model name strings
1717 * @tbl: configuration table, terminated by null entries
1719 * Compares the modelname or PCI subsystem id of the current codec with the
1720 * given configuration table. If a matching entry is found, returns its
1721 * config value (supposed to be 0 or positive).
1723 * If no entries are matching, the function returns a negative value.
1725 int snd_hda_check_board_config(struct hda_codec *codec,
1726 int num_configs, const char **models,
1727 const struct snd_pci_quirk *tbl)
1729 if (codec->bus->modelname && models) {
1731 for (i = 0; i < num_configs; i++) {
1733 !strcmp(codec->bus->modelname, models[i])) {
1734 snd_printd(KERN_INFO "hda_codec: model '%s' is "
1735 "selected\n", models[i]);
1741 if (!codec->bus->pci || !tbl)
1744 tbl = snd_pci_quirk_lookup(codec->bus->pci, tbl);
1747 if (tbl->value >= 0 && tbl->value < num_configs) {
1748 #ifdef CONFIG_SND_DEBUG_DETECT
1750 const char *model = NULL;
1752 model = models[tbl->value];
1754 sprintf(tmp, "#%d", tbl->value);
1757 snd_printdd(KERN_INFO "hda_codec: model '%s' is selected "
1758 "for config %x:%x (%s)\n",
1759 model, tbl->subvendor, tbl->subdevice,
1760 (tbl->name ? tbl->name : "Unknown device"));
1768 * snd_hda_add_new_ctls - create controls from the array
1769 * @codec: the HDA codec
1770 * @knew: the array of struct snd_kcontrol_new
1772 * This helper function creates and add new controls in the given array.
1773 * The array must be terminated with an empty entry as terminator.
1775 * Returns 0 if successful, or a negative error code.
1777 int snd_hda_add_new_ctls(struct hda_codec *codec, struct snd_kcontrol_new *knew)
1781 for (; knew->name; knew++) {
1782 struct snd_kcontrol *kctl;
1783 kctl = snd_ctl_new1(knew, codec);
1786 err = snd_ctl_add(codec->bus->card, kctl);
1790 kctl = snd_ctl_new1(knew, codec);
1793 kctl->id.device = codec->addr;
1794 if ((err = snd_ctl_add(codec->bus->card, kctl)) < 0)
1803 * Channel mode helper
1805 int snd_hda_ch_mode_info(struct hda_codec *codec, struct snd_ctl_elem_info *uinfo,
1806 const struct hda_channel_mode *chmode, int num_chmodes)
1808 uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
1810 uinfo->value.enumerated.items = num_chmodes;
1811 if (uinfo->value.enumerated.item >= num_chmodes)
1812 uinfo->value.enumerated.item = num_chmodes - 1;
1813 sprintf(uinfo->value.enumerated.name, "%dch",
1814 chmode[uinfo->value.enumerated.item].channels);
1818 int snd_hda_ch_mode_get(struct hda_codec *codec, struct snd_ctl_elem_value *ucontrol,
1819 const struct hda_channel_mode *chmode, int num_chmodes,
1824 for (i = 0; i < num_chmodes; i++) {
1825 if (max_channels == chmode[i].channels) {
1826 ucontrol->value.enumerated.item[0] = i;
1833 int snd_hda_ch_mode_put(struct hda_codec *codec, struct snd_ctl_elem_value *ucontrol,
1834 const struct hda_channel_mode *chmode, int num_chmodes,
1839 mode = ucontrol->value.enumerated.item[0];
1840 snd_assert(mode < num_chmodes, return -EINVAL);
1841 if (*max_channelsp == chmode[mode].channels && ! codec->in_resume)
1843 /* change the current channel setting */
1844 *max_channelsp = chmode[mode].channels;
1845 if (chmode[mode].sequence)
1846 snd_hda_sequence_write(codec, chmode[mode].sequence);
1853 int snd_hda_input_mux_info(const struct hda_input_mux *imux, struct snd_ctl_elem_info *uinfo)
1857 uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
1859 uinfo->value.enumerated.items = imux->num_items;
1860 index = uinfo->value.enumerated.item;
1861 if (index >= imux->num_items)
1862 index = imux->num_items - 1;
1863 strcpy(uinfo->value.enumerated.name, imux->items[index].label);
1867 int snd_hda_input_mux_put(struct hda_codec *codec, const struct hda_input_mux *imux,
1868 struct snd_ctl_elem_value *ucontrol, hda_nid_t nid,
1869 unsigned int *cur_val)
1873 idx = ucontrol->value.enumerated.item[0];
1874 if (idx >= imux->num_items)
1875 idx = imux->num_items - 1;
1876 if (*cur_val == idx && ! codec->in_resume)
1878 snd_hda_codec_write(codec, nid, 0, AC_VERB_SET_CONNECT_SEL,
1879 imux->items[idx].index);
1886 * Multi-channel / digital-out PCM helper functions
1890 * open the digital out in the exclusive mode
1892 int snd_hda_multi_out_dig_open(struct hda_codec *codec, struct hda_multi_out *mout)
1894 mutex_lock(&codec->spdif_mutex);
1895 if (mout->dig_out_used) {
1896 mutex_unlock(&codec->spdif_mutex);
1897 return -EBUSY; /* already being used */
1899 mout->dig_out_used = HDA_DIG_EXCLUSIVE;
1900 mutex_unlock(&codec->spdif_mutex);
1905 * release the digital out
1907 int snd_hda_multi_out_dig_close(struct hda_codec *codec, struct hda_multi_out *mout)
1909 mutex_lock(&codec->spdif_mutex);
1910 mout->dig_out_used = 0;
1911 mutex_unlock(&codec->spdif_mutex);
1916 * set up more restrictions for analog out
1918 int snd_hda_multi_out_analog_open(struct hda_codec *codec, struct hda_multi_out *mout,
1919 struct snd_pcm_substream *substream)
1921 substream->runtime->hw.channels_max = mout->max_channels;
1922 return snd_pcm_hw_constraint_step(substream->runtime, 0,
1923 SNDRV_PCM_HW_PARAM_CHANNELS, 2);
1927 * set up the i/o for analog out
1928 * when the digital out is available, copy the front out to digital out, too.
1930 int snd_hda_multi_out_analog_prepare(struct hda_codec *codec, struct hda_multi_out *mout,
1931 unsigned int stream_tag,
1932 unsigned int format,
1933 struct snd_pcm_substream *substream)
1935 hda_nid_t *nids = mout->dac_nids;
1936 int chs = substream->runtime->channels;
1939 mutex_lock(&codec->spdif_mutex);
1940 if (mout->dig_out_nid && mout->dig_out_used != HDA_DIG_EXCLUSIVE) {
1942 snd_hda_is_supported_format(codec, mout->dig_out_nid, format) &&
1943 ! (codec->spdif_status & IEC958_AES0_NONAUDIO)) {
1944 mout->dig_out_used = HDA_DIG_ANALOG_DUP;
1945 /* setup digital receiver */
1946 snd_hda_codec_setup_stream(codec, mout->dig_out_nid,
1947 stream_tag, 0, format);
1949 mout->dig_out_used = 0;
1950 snd_hda_codec_setup_stream(codec, mout->dig_out_nid, 0, 0, 0);
1953 mutex_unlock(&codec->spdif_mutex);
1956 snd_hda_codec_setup_stream(codec, nids[HDA_FRONT], stream_tag, 0, format);
1957 if (mout->hp_nid && mout->hp_nid != nids[HDA_FRONT])
1958 /* headphone out will just decode front left/right (stereo) */
1959 snd_hda_codec_setup_stream(codec, mout->hp_nid, stream_tag, 0, format);
1960 /* extra outputs copied from front */
1961 for (i = 0; i < ARRAY_SIZE(mout->extra_out_nid); i++)
1962 if (mout->extra_out_nid[i])
1963 snd_hda_codec_setup_stream(codec,
1964 mout->extra_out_nid[i],
1965 stream_tag, 0, format);
1968 for (i = 1; i < mout->num_dacs; i++) {
1969 if (chs >= (i + 1) * 2) /* independent out */
1970 snd_hda_codec_setup_stream(codec, nids[i], stream_tag, i * 2,
1972 else /* copy front */
1973 snd_hda_codec_setup_stream(codec, nids[i], stream_tag, 0,
1980 * clean up the setting for analog out
1982 int snd_hda_multi_out_analog_cleanup(struct hda_codec *codec, struct hda_multi_out *mout)
1984 hda_nid_t *nids = mout->dac_nids;
1987 for (i = 0; i < mout->num_dacs; i++)
1988 snd_hda_codec_setup_stream(codec, nids[i], 0, 0, 0);
1990 snd_hda_codec_setup_stream(codec, mout->hp_nid, 0, 0, 0);
1991 for (i = 0; i < ARRAY_SIZE(mout->extra_out_nid); i++)
1992 if (mout->extra_out_nid[i])
1993 snd_hda_codec_setup_stream(codec,
1994 mout->extra_out_nid[i],
1996 mutex_lock(&codec->spdif_mutex);
1997 if (mout->dig_out_nid && mout->dig_out_used == HDA_DIG_ANALOG_DUP) {
1998 snd_hda_codec_setup_stream(codec, mout->dig_out_nid, 0, 0, 0);
1999 mout->dig_out_used = 0;
2001 mutex_unlock(&codec->spdif_mutex);
2006 * Helper for automatic ping configuration
2009 static int is_in_nid_list(hda_nid_t nid, hda_nid_t *list)
2011 for (; *list; list++)
2018 * Parse all pin widgets and store the useful pin nids to cfg
2020 * The number of line-outs or any primary output is stored in line_outs,
2021 * and the corresponding output pins are assigned to line_out_pins[],
2022 * in the order of front, rear, CLFE, side, ...
2024 * If more extra outputs (speaker and headphone) are found, the pins are
2025 * assisnged to hp_pins[] and speaker_pins[], respectively. If no line-out jack
2026 * is detected, one of speaker of HP pins is assigned as the primary
2027 * output, i.e. to line_out_pins[0]. So, line_outs is always positive
2028 * if any analog output exists.
2030 * The analog input pins are assigned to input_pins array.
2031 * The digital input/output pins are assigned to dig_in_pin and dig_out_pin,
2034 int snd_hda_parse_pin_def_config(struct hda_codec *codec, struct auto_pin_cfg *cfg,
2035 hda_nid_t *ignore_nids)
2037 hda_nid_t nid, nid_start;
2039 short seq, assoc_line_out, sequences[ARRAY_SIZE(cfg->line_out_pins)];
2041 memset(cfg, 0, sizeof(*cfg));
2043 memset(sequences, 0, sizeof(sequences));
2046 nodes = snd_hda_get_sub_nodes(codec, codec->afg, &nid_start);
2047 for (nid = nid_start; nid < nodes + nid_start; nid++) {
2048 unsigned int wid_caps = get_wcaps(codec, nid);
2049 unsigned int wid_type = (wid_caps & AC_WCAP_TYPE) >> AC_WCAP_TYPE_SHIFT;
2050 unsigned int def_conf;
2053 /* read all default configuration for pin complex */
2054 if (wid_type != AC_WID_PIN)
2056 /* ignore the given nids (e.g. pc-beep returns error) */
2057 if (ignore_nids && is_in_nid_list(nid, ignore_nids))
2060 def_conf = snd_hda_codec_read(codec, nid, 0, AC_VERB_GET_CONFIG_DEFAULT, 0);
2061 if (get_defcfg_connect(def_conf) == AC_JACK_PORT_NONE)
2063 loc = get_defcfg_location(def_conf);
2064 switch (get_defcfg_device(def_conf)) {
2065 case AC_JACK_LINE_OUT:
2066 seq = get_defcfg_sequence(def_conf);
2067 assoc = get_defcfg_association(def_conf);
2070 if (! assoc_line_out)
2071 assoc_line_out = assoc;
2072 else if (assoc_line_out != assoc)
2074 if (cfg->line_outs >= ARRAY_SIZE(cfg->line_out_pins))
2076 cfg->line_out_pins[cfg->line_outs] = nid;
2077 sequences[cfg->line_outs] = seq;
2080 case AC_JACK_SPEAKER:
2081 if (cfg->speaker_outs >= ARRAY_SIZE(cfg->speaker_pins))
2083 cfg->speaker_pins[cfg->speaker_outs] = nid;
2084 cfg->speaker_outs++;
2086 case AC_JACK_HP_OUT:
2087 if (cfg->hp_outs >= ARRAY_SIZE(cfg->hp_pins))
2089 cfg->hp_pins[cfg->hp_outs] = nid;
2092 case AC_JACK_MIC_IN: {
2094 if (loc == AC_JACK_LOC_FRONT) {
2095 preferred = AUTO_PIN_FRONT_MIC;
2098 preferred = AUTO_PIN_MIC;
2099 alt = AUTO_PIN_FRONT_MIC;
2101 if (!cfg->input_pins[preferred])
2102 cfg->input_pins[preferred] = nid;
2103 else if (!cfg->input_pins[alt])
2104 cfg->input_pins[alt] = nid;
2107 case AC_JACK_LINE_IN:
2108 if (loc == AC_JACK_LOC_FRONT)
2109 cfg->input_pins[AUTO_PIN_FRONT_LINE] = nid;
2111 cfg->input_pins[AUTO_PIN_LINE] = nid;
2114 cfg->input_pins[AUTO_PIN_CD] = nid;
2117 cfg->input_pins[AUTO_PIN_AUX] = nid;
2119 case AC_JACK_SPDIF_OUT:
2120 cfg->dig_out_pin = nid;
2122 case AC_JACK_SPDIF_IN:
2123 cfg->dig_in_pin = nid;
2128 /* sort by sequence */
2129 for (i = 0; i < cfg->line_outs; i++)
2130 for (j = i + 1; j < cfg->line_outs; j++)
2131 if (sequences[i] > sequences[j]) {
2133 sequences[i] = sequences[j];
2135 nid = cfg->line_out_pins[i];
2136 cfg->line_out_pins[i] = cfg->line_out_pins[j];
2137 cfg->line_out_pins[j] = nid;
2140 /* Reorder the surround channels
2141 * ALSA sequence is front/surr/clfe/side
2143 * 4-ch: front/surr => OK as it is
2144 * 6-ch: front/clfe/surr
2145 * 8-ch: front/clfe/side/surr
2147 switch (cfg->line_outs) {
2149 nid = cfg->line_out_pins[1];
2150 cfg->line_out_pins[1] = cfg->line_out_pins[2];
2151 cfg->line_out_pins[2] = nid;
2154 nid = cfg->line_out_pins[1];
2155 cfg->line_out_pins[1] = cfg->line_out_pins[3];
2156 cfg->line_out_pins[3] = cfg->line_out_pins[2];
2157 cfg->line_out_pins[2] = nid;
2162 * debug prints of the parsed results
2164 snd_printd("autoconfig: line_outs=%d (0x%x/0x%x/0x%x/0x%x/0x%x)\n",
2165 cfg->line_outs, cfg->line_out_pins[0], cfg->line_out_pins[1],
2166 cfg->line_out_pins[2], cfg->line_out_pins[3],
2167 cfg->line_out_pins[4]);
2168 snd_printd(" speaker_outs=%d (0x%x/0x%x/0x%x/0x%x/0x%x)\n",
2169 cfg->speaker_outs, cfg->speaker_pins[0],
2170 cfg->speaker_pins[1], cfg->speaker_pins[2],
2171 cfg->speaker_pins[3], cfg->speaker_pins[4]);
2172 snd_printd(" hp_outs=%d (0x%x/0x%x/0x%x/0x%x/0x%x)\n",
2173 cfg->hp_outs, cfg->hp_pins[0],
2174 cfg->hp_pins[1], cfg->hp_pins[2],
2175 cfg->hp_pins[3], cfg->hp_pins[4]);
2176 snd_printd(" inputs: mic=0x%x, fmic=0x%x, line=0x%x, fline=0x%x,"
2177 " cd=0x%x, aux=0x%x\n",
2178 cfg->input_pins[AUTO_PIN_MIC],
2179 cfg->input_pins[AUTO_PIN_FRONT_MIC],
2180 cfg->input_pins[AUTO_PIN_LINE],
2181 cfg->input_pins[AUTO_PIN_FRONT_LINE],
2182 cfg->input_pins[AUTO_PIN_CD],
2183 cfg->input_pins[AUTO_PIN_AUX]);
2186 * FIX-UP: if no line-outs are detected, try to use speaker or HP pin
2187 * as a primary output
2189 if (! cfg->line_outs) {
2190 if (cfg->speaker_outs) {
2191 cfg->line_outs = cfg->speaker_outs;
2192 memcpy(cfg->line_out_pins, cfg->speaker_pins,
2193 sizeof(cfg->speaker_pins));
2194 cfg->speaker_outs = 0;
2195 memset(cfg->speaker_pins, 0, sizeof(cfg->speaker_pins));
2196 } else if (cfg->hp_outs) {
2197 cfg->line_outs = cfg->hp_outs;
2198 memcpy(cfg->line_out_pins, cfg->hp_pins,
2199 sizeof(cfg->hp_pins));
2201 memset(cfg->hp_pins, 0, sizeof(cfg->hp_pins));
2208 /* labels for input pins */
2209 const char *auto_pin_cfg_labels[AUTO_PIN_LAST] = {
2210 "Mic", "Front Mic", "Line", "Front Line", "CD", "Aux"
2220 * snd_hda_suspend - suspend the codecs
2222 * @state: suspsend state
2224 * Returns 0 if successful.
2226 int snd_hda_suspend(struct hda_bus *bus, pm_message_t state)
2228 struct list_head *p;
2230 /* FIXME: should handle power widget capabilities */
2231 list_for_each(p, &bus->codec_list) {
2232 struct hda_codec *codec = list_entry(p, struct hda_codec, list);
2233 if (codec->patch_ops.suspend)
2234 codec->patch_ops.suspend(codec, state);
2235 hda_set_power_state(codec,
2236 codec->afg ? codec->afg : codec->mfg,
2242 EXPORT_SYMBOL(snd_hda_suspend);
2245 * snd_hda_resume - resume the codecs
2247 * @state: resume state
2249 * Returns 0 if successful.
2251 int snd_hda_resume(struct hda_bus *bus)
2253 struct list_head *p;
2255 list_for_each(p, &bus->codec_list) {
2256 struct hda_codec *codec = list_entry(p, struct hda_codec, list);
2257 hda_set_power_state(codec,
2258 codec->afg ? codec->afg : codec->mfg,
2260 if (codec->patch_ops.resume)
2261 codec->patch_ops.resume(codec);
2266 EXPORT_SYMBOL(snd_hda_resume);
2269 * snd_hda_resume_ctls - resume controls in the new control list
2270 * @codec: the HDA codec
2271 * @knew: the array of struct snd_kcontrol_new
2273 * This function resumes the mixer controls in the struct snd_kcontrol_new array,
2274 * originally for snd_hda_add_new_ctls().
2275 * The array must be terminated with an empty entry as terminator.
2277 int snd_hda_resume_ctls(struct hda_codec *codec, struct snd_kcontrol_new *knew)
2279 struct snd_ctl_elem_value *val;
2281 val = kmalloc(sizeof(*val), GFP_KERNEL);
2284 codec->in_resume = 1;
2285 for (; knew->name; knew++) {
2287 count = knew->count ? knew->count : 1;
2288 for (i = 0; i < count; i++) {
2289 memset(val, 0, sizeof(*val));
2290 val->id.iface = knew->iface;
2291 val->id.device = knew->device;
2292 val->id.subdevice = knew->subdevice;
2293 strcpy(val->id.name, knew->name);
2294 val->id.index = knew->index ? knew->index : i;
2295 /* Assume that get callback reads only from cache,
2296 * not accessing to the real hardware
2298 if (snd_ctl_elem_read(codec->bus->card, val) < 0)
2300 snd_ctl_elem_write(codec->bus->card, NULL, val);
2303 codec->in_resume = 0;
2309 * snd_hda_resume_spdif_out - resume the digital out
2310 * @codec: the HDA codec
2312 int snd_hda_resume_spdif_out(struct hda_codec *codec)
2314 return snd_hda_resume_ctls(codec, dig_mixes);
2318 * snd_hda_resume_spdif_in - resume the digital in
2319 * @codec: the HDA codec
2321 int snd_hda_resume_spdif_in(struct hda_codec *codec)
2323 return snd_hda_resume_ctls(codec, dig_in_ctls);
2331 static int __init alsa_hda_init(void)
2336 static void __exit alsa_hda_exit(void)
2340 module_init(alsa_hda_init)
2341 module_exit(alsa_hda_exit)