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

/*
 * Digital Beep Input Interface for HD-audio codec
 *
 * Author: Matt Ranostay <mranostay@gmail.com>
 * Copyright (c) 2008 Embedded Alley Solutions Inc
 *
 *  This driver is free software; you can redistribute it and/or modify
 *  it under the terms of the GNU General Public License as published by
 *  the Free Software Foundation; either version 2 of the License, or
 *  (at your option) any later version.
 *
 *  This driver is distributed in the hope that it will be useful,
 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *  GNU General Public License for more details.
 *
 *  You should have received a copy of the GNU General Public License
 *  along with this program; if not, write to the Free Software
 *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
 */

#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
1cd2224c MR	1	/*
	2	* Digital Beep Input Interface for HD-audio codec
	3	*
70a3887a	4	* Author: Matt Ranostay <mranostay@gmail.com>
1cd2224c MR	5	* Copyright (c) 2008 Embedded Alley Solutions Inc
	6	*
	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.
	11	*
	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.
	16	*
	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
	20	*/
	21
	22	#include <linux/input.h>
5a0e3ad6	23	#include <linux/slab.h>
1cd2224c	24	#include <linux/workqueue.h>
d81a6d71	25	#include <linux/export.h>
1cd2224c MR	26	#include <sound/core.h>
1cd2224c MR	27	#include "hda_beep.h"
b7b51141	28	#include "hda_local.h"
1cd2224c MR	29
	30	enum {
	31	DIGBEEP_HZ_STEP = 46875, /* 46.875 Hz */
	32	DIGBEEP_HZ_MIN = 93750, /* 93.750 Hz */
	33	DIGBEEP_HZ_MAX = 12000000, /* 12 KHz */
	34	};
	35
5ccf835c TI	36	/* generate or stop tone */
5ccf835c TI	37	static void generate_tone(struct hda_beep *beep, int tone)
1cd2224c	38	{
1cd2224c MR	39	struct hda_codec *codec = beep->codec;
1cd2224c MR	40
e914b25e TI	41	if (tone && !beep->playing) {
e914b25e TI	42	snd_hda_power_up(codec);
5ccf835c TI	43	if (beep->power_hook)
5ccf835c TI	44	beep->power_hook(beep, true);
e914b25e TI	45	beep->playing = 1;
e914b25e TI	46	}
411fe85c	47	snd_hda_codec_write(codec, beep->nid, 0,
e914b25e TI	48	AC_VERB_SET_BEEP_CONTROL, tone);
	49	if (!tone && beep->playing) {
	50	beep->playing = 0;
5ccf835c TI	51	if (beep->power_hook)
5ccf835c TI	52	beep->power_hook(beep, false);
e914b25e TI	53	snd_hda_power_down(codec);
e914b25e TI	54	}
1cd2224c MR	55	}
1cd2224c MR	56
5ccf835c TI	57	static void snd_hda_generate_beep(struct work_struct *work)
	58	{
	59	struct hda_beep *beep =
	60	container_of(work, struct hda_beep, beep_work);
	61
	62	if (beep->enabled)
	63	generate_tone(beep, beep->tone);
	64	}
	65
fa797966 TI	66	/* (non-standard) Linear beep tone calculation for IDT/STAC codecs
	67	*
	68	* The tone frequency of beep generator on IDT/STAC codecs is
	69	* defined from the 8bit tone parameter, in Hz,
	70	* freq = 48000 * (257 - tone) / 1024
369693dc	71	* that is from 12kHz to 93.75Hz in steps of 46.875 Hz
fa797966 TI	72	*/
	73	static int beep_linear_tone(struct hda_beep *beep, int hz)
	74	{
369693dc PV	75	if (hz <= 0)
369693dc PV	76	return 0;
fa797966	77	hz = 1000; / fixed point */
369693dc PV	78	hz = hz - DIGBEEP_HZ_MIN
369693dc PV	79	+ DIGBEEP_HZ_STEP / 2; /* round to nearest step */
fa797966 TI	80	if (hz < 0)
	81	hz = 0; /* turn off PC beep*/
	82	else if (hz >= (DIGBEEP_HZ_MAX - DIGBEEP_HZ_MIN))
369693dc	83	hz = 1; /* max frequency */
fa797966 TI	84	else {
fa797966 TI	85	hz /= DIGBEEP_HZ_STEP;
369693dc	86	hz = 255 - hz;
fa797966 TI	87	}
	88	return hz;
	89	}
	90
	91	/* HD-audio standard beep tone parameter calculation
	92	*
	93	* The tone frequency in Hz is calculated as
	94	* freq = 48000 / (tone * 4)
	95	* from 47Hz to 12kHz
	96	*/
	97	static int beep_standard_tone(struct hda_beep *beep, int hz)
	98	{
	99	if (hz <= 0)
	100	return 0; /* disabled */
	101	hz = 12000 / hz;
	102	if (hz > 0xff)
	103	return 0xff;
	104	if (hz <= 0)
	105	return 1;
	106	return hz;
	107	}
	108
1cd2224c MR	109	static int snd_hda_beep_event(struct input_dev *dev, unsigned int type,
	110	unsigned int code, int hz)
	111	{
	112	struct hda_beep *beep = input_get_drvdata(dev);
	113
	114	switch (code) {
	115	case SND_BELL:
	116	if (hz)
	117	hz = 1000;
57d8ff61	118	/* fallthru */
1cd2224c	119	case SND_TONE:
fa797966 TI	120	if (beep->linear_tone)
	121	beep->tone = beep_linear_tone(beep, hz);
	122	else
	123	beep->tone = beep_standard_tone(beep, hz);
1cd2224c MR	124	break;
	125	default:
	126	return -1;
	127	}
1cd2224c MR	128
	129	/* schedule beep event */
	130	schedule_work(&beep->beep_work);
	131	return 0;
	132	}
	133
e914b25e TI	134	static void turn_off_beep(struct hda_beep *beep)
	135	{
	136	cancel_work_sync(&beep->beep_work);
	137	if (beep->playing) {
	138	/* turn off beep */
5ccf835c	139	generate_tone(beep, 0);
e914b25e TI	140	}
	141	}
	142
123c07ae JK	143	static void snd_hda_do_detach(struct hda_beep *beep)
123c07ae JK	144	{
d604b399 TI	145	if (beep->registered)
	146	input_unregister_device(beep->dev);
	147	else
	148	input_free_device(beep->dev);
123c07ae	149	beep->dev = NULL;
e914b25e	150	turn_off_beep(beep);
123c07ae JK	151	}
	152
	153	static int snd_hda_do_attach(struct hda_beep *beep)
1cd2224c MR	154	{
1cd2224c MR	155	struct input_dev *input_dev;
123c07ae	156	struct hda_codec *codec = beep->codec;
1cd2224c	157
1cd2224c	158	input_dev = input_allocate_device();
b7baa9a0	159	if (!input_dev)
6a12afb5	160	return -ENOMEM;
1cd2224c MR	161
	162	/* setup digital beep device */
	163	input_dev->name = "HDA Digital PCBeep";
	164	input_dev->phys = beep->phys;
	165	input_dev->id.bustype = BUS_PCI;
6efdd851	166	input_dev->dev.parent = &codec->card->card_dev;
1cd2224c	167
7639a06c TI	168	input_dev->id.vendor = codec->core.vendor_id >> 16;
7639a06c TI	169	input_dev->id.product = codec->core.vendor_id & 0xffff;
1cd2224c MR	170	input_dev->id.version = 0x01;
	171
	172	input_dev->evbit[0] = BIT_MASK(EV_SND);
	173	input_dev->sndbit[0] = BIT_MASK(SND_BELL) \| BIT_MASK(SND_TONE);
	174	input_dev->event = snd_hda_beep_event;
1cd2224c MR	175	input_set_drvdata(input_dev, beep);
1cd2224c MR	176
123c07ae JK	177	beep->dev = input_dev;
	178	return 0;
	179	}
	180
95a962c3 TI	181	/**
	182	* snd_hda_enable_beep_device - Turn on/off beep sound
	183	* @codec: the HDA codec
	184	* @enable: flag to turn on/off
	185	*/
123c07ae JK	186	int snd_hda_enable_beep_device(struct hda_codec *codec, int enable)
	187	{
	188	struct hda_beep *beep = codec->beep;
3fd877d3	189	if (!beep)
13dab080	190	return 0;
3fd877d3	191	enable = !!enable;
13dab080 JK	192	if (beep->enabled != enable) {
13dab080 JK	193	beep->enabled = enable;
e914b25e TI	194	if (!enable)
e914b25e TI	195	turn_off_beep(beep);
123c07ae JK	196	return 1;
	197	}
	198	return 0;
	199	}
2698ea98	200	EXPORT_SYMBOL_GPL(snd_hda_enable_beep_device);
123c07ae	201
95a962c3 TI	202	/**
	203	* snd_hda_attach_beep_device - Attach a beep input device
	204	* @codec: the HDA codec
	205	* @nid: beep NID
	206	*
	207	* Attach a beep object to the given widget. If beep hint is turned off
	208	* explicitly or beep_mode of the codec is turned off, this doesn't nothing.
	209	*
	210	* The attached beep device has to be registered via
	211	* snd_hda_register_beep_device() and released via snd_hda_detach_beep_device()
	212	* appropriately.
	213	*
	214	* Currently, only one beep device is allowed to each codec.
	215	*/
123c07ae JK	216	int snd_hda_attach_beep_device(struct hda_codec *codec, int nid)
	217	{
	218	struct hda_beep *beep;
257dfb41	219	int err;
123c07ae JK	220
123c07ae JK	221	if (!snd_hda_get_bool_hint(codec, "beep"))
9bb1fe39 TI	222	return 0; /* disabled explicitly by hints */
	223	if (codec->beep_mode == HDA_BEEP_MODE_OFF)
	224	return 0; /* disabled by module option */
1cd2224c	225
123c07ae JK	226	beep = kzalloc(sizeof(*beep), GFP_KERNEL);
	227	if (beep == NULL)
	228	return -ENOMEM;
	229	snprintf(beep->phys, sizeof(beep->phys),
6efdd851	230	"card%d/codec#%d/beep0", codec->card->number, codec->addr);
1cd2224c	231	/* enable linear scale */
8bc0a846	232	snd_hda_codec_write_cache(codec, nid, 0,
1cd2224c MR	233	AC_VERB_SET_DIGI_CONVERT_2, 0x01);
	234
	235	beep->nid = nid;
1cd2224c MR	236	beep->codec = codec;
	237	codec->beep = beep;
	238
	239	INIT_WORK(&beep->beep_work, &snd_hda_generate_beep);
123c07ae JK	240	mutex_init(&beep->mutex);
123c07ae JK	241
257dfb41 TI	242	err = snd_hda_do_attach(beep);
	243	if (err < 0) {
	244	kfree(beep);
	245	codec->beep = NULL;
	246	return err;
2dca0bba JK	247	}
2dca0bba JK	248
1cd2224c MR	249	return 0;
1cd2224c MR	250	}
2698ea98	251	EXPORT_SYMBOL_GPL(snd_hda_attach_beep_device);
1cd2224c	252
95a962c3 TI	253	/**
	254	* snd_hda_detach_beep_device - Detach the beep device
	255	* @codec: the HDA codec
	256	*/
1cd2224c MR	257	void snd_hda_detach_beep_device(struct hda_codec *codec)
	258	{
	259	struct hda_beep *beep = codec->beep;
	260	if (beep) {
54f7190b	261	if (beep->dev)
123c07ae	262	snd_hda_do_detach(beep);
c44765b8	263	codec->beep = NULL;
123c07ae	264	kfree(beep);
1cd2224c MR	265	}
1cd2224c MR	266	}
2698ea98	267	EXPORT_SYMBOL_GPL(snd_hda_detach_beep_device);
0401e854	268
95a962c3 TI	269	/**
	270	* snd_hda_register_beep_device - Register the beep device
	271	* @codec: the HDA codec
	272	*/
d604b399 TI	273	int snd_hda_register_beep_device(struct hda_codec *codec)
	274	{
	275	struct hda_beep *beep = codec->beep;
	276	int err;
	277
	278	if (!beep \|\| !beep->dev)
	279	return 0;
	280
	281	err = input_register_device(beep->dev);
	282	if (err < 0) {
	283	codec_err(codec, "hda_beep: unable to register input device\n");
	284	input_free_device(beep->dev);
	285	codec->beep = NULL;
	286	kfree(beep);
	287	return err;
	288	}
	289	beep->registered = true;
	290	return 0;
	291	}
	292	EXPORT_SYMBOL_GPL(snd_hda_register_beep_device);
	293
265d931a DH	294	static bool ctl_has_mute(struct snd_kcontrol *kcontrol)
	295	{
	296	struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
	297	return query_amp_caps(codec, get_amp_nid(kcontrol),
	298	get_amp_direction(kcontrol)) & AC_AMPCAP_MUTE;
	299	}
	300
0401e854	301	/* get/put callbacks for beep mute mixer switches */
95a962c3 TI	302
	303	/**
	304	* snd_hda_mixer_amp_switch_get_beep - Get callback for beep controls
	305	* @kcontrol: ctl element
	306	* @ucontrol: pointer to get/store the data
	307	*/
0401e854 TI	308	int snd_hda_mixer_amp_switch_get_beep(struct snd_kcontrol *kcontrol,
	309	struct snd_ctl_elem_value *ucontrol)
	310	{
	311	struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
	312	struct hda_beep *beep = codec->beep;
265d931a	313	if (beep && (!beep->enabled \|\| !ctl_has_mute(kcontrol))) {
0401e854	314	ucontrol->value.integer.value[0] =
265d931a	315	ucontrol->value.integer.value[1] = beep->enabled;
0401e854 TI	316	return 0;
	317	}
	318	return snd_hda_mixer_amp_switch_get(kcontrol, ucontrol);
	319	}
2698ea98	320	EXPORT_SYMBOL_GPL(snd_hda_mixer_amp_switch_get_beep);
0401e854	321
95a962c3 TI	322	/**
	323	* snd_hda_mixer_amp_switch_put_beep - Put callback for beep controls
	324	* @kcontrol: ctl element
	325	* @ucontrol: pointer to get/store the data
	326	*/
0401e854 TI	327	int snd_hda_mixer_amp_switch_put_beep(struct snd_kcontrol *kcontrol,
	328	struct snd_ctl_elem_value *ucontrol)
	329	{
	330	struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
	331	struct hda_beep *beep = codec->beep;
14bc9c6d DH	332	if (beep) {
	333	u8 chs = get_amp_channels(kcontrol);
	334	int enable = 0;
	335	long *valp = ucontrol->value.integer.value;
	336	if (chs & 1) {
	337	enable \|= *valp;
	338	valp++;
	339	}
	340	if (chs & 2)
	341	enable \|= *valp;
	342	snd_hda_enable_beep_device(codec, enable);
	343	}
265d931a DH	344	if (!ctl_has_mute(kcontrol))
265d931a DH	345	return 0;
0401e854 TI	346	return snd_hda_mixer_amp_switch_put(kcontrol, ucontrol);
0401e854 TI	347	}
2698ea98	348	EXPORT_SYMBOL_GPL(snd_hda_mixer_amp_switch_put_beep);