[linux-2.6-block.git] / sound / pci / hda / hda_beep.c

// SPDX-License-Identifier: GPL-2.0+
/*
 * Digital Beep Input Interface for HD-audio codec
 *
 * Author: Matt Ranostay <matt.ranostay@konsulko.com>
 * Copyright (c) 2008 Embedded Alley Solutions Inc
 */

#include <linux/input.h>
#include <linux/slab.h>
#include <linux/workqueue.h>
#include <linux/export.h>
#include <sound/core.h>
#include "hda_beep.h"
#include "hda_local.h"

enum {
	DIGBEEP_HZ_STEP = 46875,	/* 46.875 Hz */
	DIGBEEP_HZ_MIN = 93750,		/* 93.750 Hz */
	DIGBEEP_HZ_MAX = 12000000,	/* 12 KHz */
};

/* generate or stop tone */
static void generate_tone(struct hda_beep *beep, int tone)
{
	struct hda_codec *codec = beep->codec;

	if (tone && !beep->playing) {
		snd_hda_power_up(codec);
		if (beep->power_hook)
			beep->power_hook(beep, true);
		beep->playing = 1;
	}
	snd_hda_codec_write(codec, beep->nid, 0,
			    AC_VERB_SET_BEEP_CONTROL, tone);
	if (!tone && beep->playing) {
		beep->playing = 0;
		if (beep->power_hook)
			beep->power_hook(beep, false);
		snd_hda_power_down(codec);
	}
}

static void snd_hda_generate_beep(struct work_struct *work)
{
	struct hda_beep *beep =
		container_of(work, struct hda_beep, beep_work);

	if (beep->enabled)
		generate_tone(beep, beep->tone);
}

/* (non-standard) Linear beep tone calculation for IDT/STAC codecs 
 *
 * The tone frequency of beep generator on IDT/STAC codecs is
 * defined from the 8bit tone parameter, in Hz,
 *    freq = 48000 * (257 - tone) / 1024
 * that is from 12kHz to 93.75Hz in steps of 46.875 Hz
 */
static int beep_linear_tone(struct hda_beep *beep, int hz)
{
	if (hz <= 0)
		return 0;
	hz *= 1000; /* fixed point */
	hz = hz - DIGBEEP_HZ_MIN
		+ DIGBEEP_HZ_STEP / 2; /* round to nearest step */
	if (hz < 0)
		hz = 0; /* turn off PC beep*/
	else if (hz >= (DIGBEEP_HZ_MAX - DIGBEEP_HZ_MIN))
		hz = 1; /* max frequency */
	else {
		hz /= DIGBEEP_HZ_STEP;
		hz = 255 - hz;
	}
	return hz;
}

/* HD-audio standard beep tone parameter calculation
 *
 * The tone frequency in Hz is calculated as
 *   freq = 48000 / (tone * 4)
 * from 47Hz to 12kHz
 */
static int beep_standard_tone(struct hda_beep *beep, int hz)
{
	if (hz <= 0)
		return 0; /* disabled */
	hz = 12000 / hz;
	if (hz > 0xff)
		return 0xff;
	if (hz <= 0)
		return 1;
	return hz;
}

static int snd_hda_beep_event(struct input_dev *dev, unsigned int type,
				unsigned int code, int hz)
{
	struct hda_beep *beep = input_get_drvdata(dev);

	switch (code) {
	case SND_BELL:
		if (hz)
			hz = 1000;
		/* fallthru */
	case SND_TONE:
		if (beep->linear_tone)
			beep->tone = beep_linear_tone(beep, hz);
		else
			beep->tone = beep_standard_tone(beep, hz);
		break;
	default:
		return -1;
	}

	/* schedule beep event */
	schedule_work(&beep->beep_work);
	return 0;
}

static void turn_off_beep(struct hda_beep *beep)
{
	cancel_work_sync(&beep->beep_work);
	if (beep->playing) {
		/* turn off beep */
		generate_tone(beep, 0);
	}
}

static void snd_hda_do_detach(struct hda_beep *beep)
{
	if (beep->registered)
		input_unregister_device(beep->dev);
	else
		input_free_device(beep->dev);
	beep->dev = NULL;
	turn_off_beep(beep);
}

static int snd_hda_do_attach(struct hda_beep *beep)
{
	struct input_dev *input_dev;
	struct hda_codec *codec = beep->codec;

	input_dev = input_allocate_device();
	if (!input_dev)
		return -ENOMEM;

	/* setup digital beep device */
	input_dev->name = "HDA Digital PCBeep";
	input_dev->phys = beep->phys;
	input_dev->id.bustype = BUS_PCI;
	input_dev->dev.parent = &codec->card->card_dev;

	input_dev->id.vendor = codec->core.vendor_id >> 16;
	input_dev->id.product = codec->core.vendor_id & 0xffff;
	input_dev->id.version = 0x01;

	input_dev->evbit[0] = BIT_MASK(EV_SND);
	input_dev->sndbit[0] = BIT_MASK(SND_BELL) | BIT_MASK(SND_TONE);
	input_dev->event = snd_hda_beep_event;
	input_set_drvdata(input_dev, beep);

	beep->dev = input_dev;
	return 0;
}

/**
 * snd_hda_enable_beep_device - Turn on/off beep sound
 * @codec: the HDA codec
 * @enable: flag to turn on/off
 */
int snd_hda_enable_beep_device(struct hda_codec *codec, int enable)
{
	struct hda_beep *beep = codec->beep;
	if (!beep)
		return 0;
	enable = !!enable;
	if (beep->enabled != enable) {
		beep->enabled = enable;
		if (!enable)
			turn_off_beep(beep);
		return 1;
	}
	return 0;
}
EXPORT_SYMBOL_GPL(snd_hda_enable_beep_device);

/**
 * snd_hda_attach_beep_device - Attach a beep input device
 * @codec: the HDA codec
 * @nid: beep NID
 *
 * Attach a beep object to the given widget.  If beep hint is turned off
 * explicitly or beep_mode of the codec is turned off, this doesn't nothing.
 *
 * The attached beep device has to be registered via
 * snd_hda_register_beep_device() and released via snd_hda_detach_beep_device()
 * appropriately.
 *
 * Currently, only one beep device is allowed to each codec.
 */
int snd_hda_attach_beep_device(struct hda_codec *codec, int nid)
{
	struct hda_beep *beep;
	int err;

	if (!snd_hda_get_bool_hint(codec, "beep"))
		return 0; /* disabled explicitly by hints */
	if (codec->beep_mode == HDA_BEEP_MODE_OFF)
		return 0; /* disabled by module option */

	beep = kzalloc(sizeof(*beep), GFP_KERNEL);
	if (beep == NULL)
		return -ENOMEM;
	snprintf(beep->phys, sizeof(beep->phys),
		"card%d/codec#%d/beep0", codec->card->number, codec->addr);
	/* enable linear scale */
	snd_hda_codec_write_cache(codec, nid, 0,
		AC_VERB_SET_DIGI_CONVERT_2, 0x01);

	beep->nid = nid;
	beep->codec = codec;
	codec->beep = beep;

	INIT_WORK(&beep->beep_work, &snd_hda_generate_beep);
	mutex_init(&beep->mutex);

	err = snd_hda_do_attach(beep);
	if (err < 0) {
		kfree(beep);
		codec->beep = NULL;
		return err;
	}

	return 0;
}
EXPORT_SYMBOL_GPL(snd_hda_attach_beep_device);

/**
 * snd_hda_detach_beep_device - Detach the beep device
 * @codec: the HDA codec
 */
void snd_hda_detach_beep_device(struct hda_codec *codec)
{
	struct hda_beep *beep = codec->beep;
	if (beep) {
		if (beep->dev)
			snd_hda_do_detach(beep);
		codec->beep = NULL;
		kfree(beep);
	}
}
EXPORT_SYMBOL_GPL(snd_hda_detach_beep_device);

/**
 * snd_hda_register_beep_device - Register the beep device
 * @codec: the HDA codec
 */
int snd_hda_register_beep_device(struct hda_codec *codec)
{
	struct hda_beep *beep = codec->beep;
	int err;

	if (!beep || !beep->dev)
		return 0;

	err = input_register_device(beep->dev);
	if (err < 0) {
		codec_err(codec, "hda_beep: unable to register input device\n");
		input_free_device(beep->dev);
		codec->beep = NULL;
		kfree(beep);
		return err;
	}
	beep->registered = true;
	return 0;
}
EXPORT_SYMBOL_GPL(snd_hda_register_beep_device);

static bool ctl_has_mute(struct snd_kcontrol *kcontrol)
{
	struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
	return query_amp_caps(codec, get_amp_nid(kcontrol),
			      get_amp_direction(kcontrol)) & AC_AMPCAP_MUTE;
}

/* get/put callbacks for beep mute mixer switches */

/**
 * snd_hda_mixer_amp_switch_get_beep - Get callback for beep controls
 * @kcontrol: ctl element
 * @ucontrol: pointer to get/store the data
 */
int snd_hda_mixer_amp_switch_get_beep(struct snd_kcontrol *kcontrol,
				      struct snd_ctl_elem_value *ucontrol)
{
	struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
	struct hda_beep *beep = codec->beep;
	if (beep && (!beep->enabled || !ctl_has_mute(kcontrol))) {
		ucontrol->value.integer.value[0] =
			ucontrol->value.integer.value[1] = beep->enabled;
		return 0;
	}
	return snd_hda_mixer_amp_switch_get(kcontrol, ucontrol);
}
EXPORT_SYMBOL_GPL(snd_hda_mixer_amp_switch_get_beep);

/**
 * snd_hda_mixer_amp_switch_put_beep - Put callback for beep controls
 * @kcontrol: ctl element
 * @ucontrol: pointer to get/store the data
 */
int snd_hda_mixer_amp_switch_put_beep(struct snd_kcontrol *kcontrol,
				      struct snd_ctl_elem_value *ucontrol)
{
	struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
	struct hda_beep *beep = codec->beep;
	if (beep) {
		u8 chs = get_amp_channels(kcontrol);
		int enable = 0;
		long *valp = ucontrol->value.integer.value;
		if (chs & 1) {
			enable |= *valp;
			valp++;
		}
		if (chs & 2)
			enable |= *valp;
		snd_hda_enable_beep_device(codec, enable);
	}
	if (!ctl_has_mute(kcontrol))
		return 0;
	return snd_hda_mixer_amp_switch_put(kcontrol, ucontrol);
}
EXPORT_SYMBOL_GPL(snd_hda_mixer_amp_switch_put_beep);
Commit	Line	Data
248a380a	1	// SPDX-License-Identifier: GPL-2.0+
1cd2224c MR	2	/*
	3	* Digital Beep Input Interface for HD-audio codec
	4	*
248a380a	5	* Author: Matt Ranostay <matt.ranostay@konsulko.com>
1cd2224c	6	* Copyright (c) 2008 Embedded Alley Solutions Inc
1cd2224c MR	7	*/
	8
	9	#include <linux/input.h>
5a0e3ad6	10	#include <linux/slab.h>
1cd2224c	11	#include <linux/workqueue.h>
d81a6d71	12	#include <linux/export.h>
1cd2224c MR	13	#include <sound/core.h>
1cd2224c MR	14	#include "hda_beep.h"
b7b51141	15	#include "hda_local.h"
1cd2224c MR	16
	17	enum {
	18	DIGBEEP_HZ_STEP = 46875, /* 46.875 Hz */
	19	DIGBEEP_HZ_MIN = 93750, /* 93.750 Hz */
	20	DIGBEEP_HZ_MAX = 12000000, /* 12 KHz */
	21	};
	22
5ccf835c TI	23	/* generate or stop tone */
5ccf835c TI	24	static void generate_tone(struct hda_beep *beep, int tone)
1cd2224c	25	{
1cd2224c MR	26	struct hda_codec *codec = beep->codec;
1cd2224c MR	27
e914b25e TI	28	if (tone && !beep->playing) {
e914b25e TI	29	snd_hda_power_up(codec);
5ccf835c TI	30	if (beep->power_hook)
5ccf835c TI	31	beep->power_hook(beep, true);
e914b25e TI	32	beep->playing = 1;
e914b25e TI	33	}
411fe85c	34	snd_hda_codec_write(codec, beep->nid, 0,
e914b25e TI	35	AC_VERB_SET_BEEP_CONTROL, tone);
	36	if (!tone && beep->playing) {
	37	beep->playing = 0;
5ccf835c TI	38	if (beep->power_hook)
5ccf835c TI	39	beep->power_hook(beep, false);
e914b25e TI	40	snd_hda_power_down(codec);
e914b25e TI	41	}
1cd2224c MR	42	}
1cd2224c MR	43
5ccf835c TI	44	static void snd_hda_generate_beep(struct work_struct *work)
	45	{
	46	struct hda_beep *beep =
	47	container_of(work, struct hda_beep, beep_work);
	48
	49	if (beep->enabled)
	50	generate_tone(beep, beep->tone);
	51	}
	52
fa797966 TI	53	/* (non-standard) Linear beep tone calculation for IDT/STAC codecs
	54	*
	55	* The tone frequency of beep generator on IDT/STAC codecs is
	56	* defined from the 8bit tone parameter, in Hz,
	57	* freq = 48000 * (257 - tone) / 1024
369693dc	58	* that is from 12kHz to 93.75Hz in steps of 46.875 Hz
fa797966 TI	59	*/
	60	static int beep_linear_tone(struct hda_beep *beep, int hz)
	61	{
369693dc PV	62	if (hz <= 0)
369693dc PV	63	return 0;
fa797966	64	hz = 1000; / fixed point */
369693dc PV	65	hz = hz - DIGBEEP_HZ_MIN
369693dc PV	66	+ DIGBEEP_HZ_STEP / 2; /* round to nearest step */
fa797966 TI	67	if (hz < 0)
	68	hz = 0; /* turn off PC beep*/
	69	else if (hz >= (DIGBEEP_HZ_MAX - DIGBEEP_HZ_MIN))
369693dc	70	hz = 1; /* max frequency */
fa797966 TI	71	else {
fa797966 TI	72	hz /= DIGBEEP_HZ_STEP;
369693dc	73	hz = 255 - hz;
fa797966 TI	74	}
	75	return hz;
	76	}
	77
	78	/* HD-audio standard beep tone parameter calculation
	79	*
	80	* The tone frequency in Hz is calculated as
	81	* freq = 48000 / (tone * 4)
	82	* from 47Hz to 12kHz
	83	*/
	84	static int beep_standard_tone(struct hda_beep *beep, int hz)
	85	{
	86	if (hz <= 0)
	87	return 0; /* disabled */
	88	hz = 12000 / hz;
	89	if (hz > 0xff)
	90	return 0xff;
	91	if (hz <= 0)
	92	return 1;
	93	return hz;
	94	}
	95
1cd2224c MR	96	static int snd_hda_beep_event(struct input_dev *dev, unsigned int type,
	97	unsigned int code, int hz)
	98	{
	99	struct hda_beep *beep = input_get_drvdata(dev);
	100
	101	switch (code) {
	102	case SND_BELL:
	103	if (hz)
	104	hz = 1000;
57d8ff61	105	/* fallthru */
1cd2224c	106	case SND_TONE:
fa797966 TI	107	if (beep->linear_tone)
	108	beep->tone = beep_linear_tone(beep, hz);
	109	else
	110	beep->tone = beep_standard_tone(beep, hz);
1cd2224c MR	111	break;
	112	default:
	113	return -1;
	114	}
1cd2224c MR	115
	116	/* schedule beep event */
	117	schedule_work(&beep->beep_work);
	118	return 0;
	119	}
	120
e914b25e TI	121	static void turn_off_beep(struct hda_beep *beep)
	122	{
	123	cancel_work_sync(&beep->beep_work);
	124	if (beep->playing) {
	125	/* turn off beep */
5ccf835c	126	generate_tone(beep, 0);
e914b25e TI	127	}
	128	}
	129
123c07ae JK	130	static void snd_hda_do_detach(struct hda_beep *beep)
123c07ae JK	131	{
d604b399 TI	132	if (beep->registered)
	133	input_unregister_device(beep->dev);
	134	else
	135	input_free_device(beep->dev);
123c07ae	136	beep->dev = NULL;
e914b25e	137	turn_off_beep(beep);
123c07ae JK	138	}
	139
	140	static int snd_hda_do_attach(struct hda_beep *beep)
1cd2224c MR	141	{
1cd2224c MR	142	struct input_dev *input_dev;
123c07ae	143	struct hda_codec *codec = beep->codec;
1cd2224c	144
1cd2224c	145	input_dev = input_allocate_device();
b7baa9a0	146	if (!input_dev)
6a12afb5	147	return -ENOMEM;
1cd2224c MR	148
	149	/* setup digital beep device */
	150	input_dev->name = "HDA Digital PCBeep";
	151	input_dev->phys = beep->phys;
	152	input_dev->id.bustype = BUS_PCI;
6efdd851	153	input_dev->dev.parent = &codec->card->card_dev;
1cd2224c	154
7639a06c TI	155	input_dev->id.vendor = codec->core.vendor_id >> 16;
7639a06c TI	156	input_dev->id.product = codec->core.vendor_id & 0xffff;
1cd2224c MR	157	input_dev->id.version = 0x01;
	158
	159	input_dev->evbit[0] = BIT_MASK(EV_SND);
	160	input_dev->sndbit[0] = BIT_MASK(SND_BELL) \| BIT_MASK(SND_TONE);
	161	input_dev->event = snd_hda_beep_event;
1cd2224c MR	162	input_set_drvdata(input_dev, beep);
1cd2224c MR	163
123c07ae JK	164	beep->dev = input_dev;
	165	return 0;
	166	}
	167
95a962c3 TI	168	/**
	169	* snd_hda_enable_beep_device - Turn on/off beep sound
	170	* @codec: the HDA codec
	171	* @enable: flag to turn on/off
	172	*/
123c07ae JK	173	int snd_hda_enable_beep_device(struct hda_codec *codec, int enable)
	174	{
	175	struct hda_beep *beep = codec->beep;
3fd877d3	176	if (!beep)
13dab080	177	return 0;
3fd877d3	178	enable = !!enable;
13dab080 JK	179	if (beep->enabled != enable) {
13dab080 JK	180	beep->enabled = enable;
e914b25e TI	181	if (!enable)
e914b25e TI	182	turn_off_beep(beep);
123c07ae JK	183	return 1;
	184	}
	185	return 0;
	186	}
2698ea98	187	EXPORT_SYMBOL_GPL(snd_hda_enable_beep_device);
123c07ae	188
95a962c3 TI	189	/**
	190	* snd_hda_attach_beep_device - Attach a beep input device
	191	* @codec: the HDA codec
	192	* @nid: beep NID
	193	*
	194	* Attach a beep object to the given widget. If beep hint is turned off
	195	* explicitly or beep_mode of the codec is turned off, this doesn't nothing.
	196	*
	197	* The attached beep device has to be registered via
	198	* snd_hda_register_beep_device() and released via snd_hda_detach_beep_device()
	199	* appropriately.
	200	*
	201	* Currently, only one beep device is allowed to each codec.
	202	*/
123c07ae JK	203	int snd_hda_attach_beep_device(struct hda_codec *codec, int nid)
	204	{
	205	struct hda_beep *beep;
257dfb41	206	int err;
123c07ae JK	207
123c07ae JK	208	if (!snd_hda_get_bool_hint(codec, "beep"))
9bb1fe39 TI	209	return 0; /* disabled explicitly by hints */
	210	if (codec->beep_mode == HDA_BEEP_MODE_OFF)
	211	return 0; /* disabled by module option */
1cd2224c	212
123c07ae JK	213	beep = kzalloc(sizeof(*beep), GFP_KERNEL);
	214	if (beep == NULL)
	215	return -ENOMEM;
	216	snprintf(beep->phys, sizeof(beep->phys),
6efdd851	217	"card%d/codec#%d/beep0", codec->card->number, codec->addr);
1cd2224c	218	/* enable linear scale */
8bc0a846	219	snd_hda_codec_write_cache(codec, nid, 0,
1cd2224c MR	220	AC_VERB_SET_DIGI_CONVERT_2, 0x01);
	221
	222	beep->nid = nid;
1cd2224c MR	223	beep->codec = codec;
	224	codec->beep = beep;
	225
	226	INIT_WORK(&beep->beep_work, &snd_hda_generate_beep);
123c07ae JK	227	mutex_init(&beep->mutex);
123c07ae JK	228
257dfb41 TI	229	err = snd_hda_do_attach(beep);
	230	if (err < 0) {
	231	kfree(beep);
	232	codec->beep = NULL;
	233	return err;
2dca0bba JK	234	}
2dca0bba JK	235
1cd2224c MR	236	return 0;
1cd2224c MR	237	}
2698ea98	238	EXPORT_SYMBOL_GPL(snd_hda_attach_beep_device);
1cd2224c	239
95a962c3 TI	240	/**
	241	* snd_hda_detach_beep_device - Detach the beep device
	242	* @codec: the HDA codec
	243	*/
1cd2224c MR	244	void snd_hda_detach_beep_device(struct hda_codec *codec)
	245	{
	246	struct hda_beep *beep = codec->beep;
	247	if (beep) {
54f7190b	248	if (beep->dev)
123c07ae	249	snd_hda_do_detach(beep);
c44765b8	250	codec->beep = NULL;
123c07ae	251	kfree(beep);
1cd2224c MR	252	}
1cd2224c MR	253	}
2698ea98	254	EXPORT_SYMBOL_GPL(snd_hda_detach_beep_device);
0401e854	255
95a962c3 TI	256	/**
	257	* snd_hda_register_beep_device - Register the beep device
	258	* @codec: the HDA codec
	259	*/
d604b399 TI	260	int snd_hda_register_beep_device(struct hda_codec *codec)
	261	{
	262	struct hda_beep *beep = codec->beep;
	263	int err;
	264
	265	if (!beep \|\| !beep->dev)
	266	return 0;
	267
	268	err = input_register_device(beep->dev);
	269	if (err < 0) {
	270	codec_err(codec, "hda_beep: unable to register input device\n");
	271	input_free_device(beep->dev);
	272	codec->beep = NULL;
	273	kfree(beep);
	274	return err;
	275	}
	276	beep->registered = true;
	277	return 0;
	278	}
	279	EXPORT_SYMBOL_GPL(snd_hda_register_beep_device);
	280
265d931a DH	281	static bool ctl_has_mute(struct snd_kcontrol *kcontrol)
	282	{
	283	struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
	284	return query_amp_caps(codec, get_amp_nid(kcontrol),
	285	get_amp_direction(kcontrol)) & AC_AMPCAP_MUTE;
	286	}
	287
0401e854	288	/* get/put callbacks for beep mute mixer switches */
95a962c3 TI	289
	290	/**
	291	* snd_hda_mixer_amp_switch_get_beep - Get callback for beep controls
	292	* @kcontrol: ctl element
	293	* @ucontrol: pointer to get/store the data
	294	*/
0401e854 TI	295	int snd_hda_mixer_amp_switch_get_beep(struct snd_kcontrol *kcontrol,
	296	struct snd_ctl_elem_value *ucontrol)
	297	{
	298	struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
	299	struct hda_beep *beep = codec->beep;
265d931a	300	if (beep && (!beep->enabled \|\| !ctl_has_mute(kcontrol))) {
0401e854	301	ucontrol->value.integer.value[0] =
265d931a	302	ucontrol->value.integer.value[1] = beep->enabled;
0401e854 TI	303	return 0;
	304	}
	305	return snd_hda_mixer_amp_switch_get(kcontrol, ucontrol);
	306	}
2698ea98	307	EXPORT_SYMBOL_GPL(snd_hda_mixer_amp_switch_get_beep);
0401e854	308
95a962c3 TI	309	/**
	310	* snd_hda_mixer_amp_switch_put_beep - Put callback for beep controls
	311	* @kcontrol: ctl element
	312	* @ucontrol: pointer to get/store the data
	313	*/
0401e854 TI	314	int snd_hda_mixer_amp_switch_put_beep(struct snd_kcontrol *kcontrol,
	315	struct snd_ctl_elem_value *ucontrol)
	316	{
	317	struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
	318	struct hda_beep *beep = codec->beep;
14bc9c6d DH	319	if (beep) {
	320	u8 chs = get_amp_channels(kcontrol);
	321	int enable = 0;
	322	long *valp = ucontrol->value.integer.value;
	323	if (chs & 1) {
	324	enable \|= *valp;
	325	valp++;
	326	}
	327	if (chs & 2)
	328	enable \|= *valp;
	329	snd_hda_enable_beep_device(codec, enable);
	330	}
265d931a DH	331	if (!ctl_has_mute(kcontrol))
265d931a DH	332	return 0;
0401e854 TI	333	return snd_hda_mixer_amp_switch_put(kcontrol, ucontrol);
0401e854 TI	334	}
2698ea98	335	EXPORT_SYMBOL_GPL(snd_hda_mixer_amp_switch_put_beep);