[linux-2.6-block.git] / sound / core / jack.c

/*
 *  Jack abstraction layer
 *
 *  Copyright 2008 Wolfson Microelectronics
 *
 *   This program 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 program 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/module.h>
#include <sound/jack.h>
#include <sound/core.h>
#include <sound/control.h>

struct snd_jack_kctl {
	struct snd_kcontrol *kctl;
	struct list_head list;  /* list of controls belong to the same jack */
	unsigned int mask_bits; /* only masked status bits are reported via kctl */
};

static int jack_switch_types[SND_JACK_SWITCH_TYPES] = {
	SW_HEADPHONE_INSERT,
	SW_MICROPHONE_INSERT,
	SW_LINEOUT_INSERT,
	SW_JACK_PHYSICAL_INSERT,
	SW_VIDEOOUT_INSERT,
	SW_LINEIN_INSERT,
};

static int snd_jack_dev_disconnect(struct snd_device *device)
{
	struct snd_jack *jack = device->device_data;

	if (!jack->input_dev)
		return 0;

	/* If the input device is registered with the input subsystem
	 * then we need to use a different deallocator. */
	if (jack->registered)
		input_unregister_device(jack->input_dev);
	else
		input_free_device(jack->input_dev);
	jack->input_dev = NULL;
	return 0;
}

static int snd_jack_dev_free(struct snd_device *device)
{
	struct snd_jack *jack = device->device_data;
	struct snd_card *card = device->card;
	struct snd_jack_kctl *jack_kctl, *tmp_jack_kctl;

	list_for_each_entry_safe(jack_kctl, tmp_jack_kctl, &jack->kctl_list, list) {
		list_del_init(&jack_kctl->list);
		snd_ctl_remove(card, jack_kctl->kctl);
	}
	if (jack->private_free)
		jack->private_free(jack);

	snd_jack_dev_disconnect(device);

	kfree(jack->id);
	kfree(jack);

	return 0;
}

static int snd_jack_dev_register(struct snd_device *device)
{
	struct snd_jack *jack = device->device_data;
	struct snd_card *card = device->card;
	int err, i;

	snprintf(jack->name, sizeof(jack->name), "%s %s",
		 card->shortname, jack->id);
	jack->input_dev->name = jack->name;

	/* Default to the sound card device. */
	if (!jack->input_dev->dev.parent)
		jack->input_dev->dev.parent = snd_card_get_device_link(card);

	/* Add capabilities for any keys that are enabled */
	for (i = 0; i < ARRAY_SIZE(jack->key); i++) {
		int testbit = SND_JACK_BTN_0 >> i;

		if (!(jack->type & testbit))
			continue;

		if (!jack->key[i])
			jack->key[i] = BTN_0 + i;

		input_set_capability(jack->input_dev, EV_KEY, jack->key[i]);
	}

	err = input_register_device(jack->input_dev);
	if (err == 0)
		jack->registered = 1;

	return err;
}

static void snd_jack_kctl_private_free(struct snd_kcontrol *kctl)
{
	struct snd_jack_kctl *jack_kctl;

	jack_kctl = kctl->private_data;
	if (jack_kctl) {
		list_del(&jack_kctl->list);
		kfree(jack_kctl);
	}
}

static void snd_jack_kctl_add(struct snd_jack *jack, struct snd_jack_kctl *jack_kctl)
{
	list_add_tail(&jack_kctl->list, &jack->kctl_list);
}

static struct snd_jack_kctl * snd_jack_kctl_new(struct snd_card *card, const char *name, unsigned int mask)
{
	struct snd_kcontrol *kctl;
	struct snd_jack_kctl *jack_kctl;
	int err;

	kctl = snd_kctl_jack_new(name, card);
	if (!kctl)
		return NULL;

	err = snd_ctl_add(card, kctl);
	if (err < 0)
		return NULL;

	jack_kctl = kzalloc(sizeof(*jack_kctl), GFP_KERNEL);

	if (!jack_kctl)
		goto error;

	jack_kctl->kctl = kctl;
	jack_kctl->mask_bits = mask;

	kctl->private_data = jack_kctl;
	kctl->private_free = snd_jack_kctl_private_free;

	return jack_kctl;
error:
	snd_ctl_free_one(kctl);
	return NULL;
}

/**
 * snd_jack_add_new_kctl - Create a new snd_jack_kctl and add it to jack
 * @jack:  the jack instance which the kctl will attaching to
 * @name:  the name for the snd_kcontrol object
 * @mask:  a bitmask of enum snd_jack_type values that can be detected
 *         by this snd_jack_kctl object.
 *
 * Creates a new snd_kcontrol object and adds it to the jack kctl_list.
 *
 * Return: Zero if successful, or a negative error code on failure.
 */
int snd_jack_add_new_kctl(struct snd_jack *jack, const char * name, int mask)
{
	struct snd_jack_kctl *jack_kctl;

	jack_kctl = snd_jack_kctl_new(jack->card, name, mask);
	if (!jack_kctl)
		return -ENOMEM;

	snd_jack_kctl_add(jack, jack_kctl);
	return 0;
}
EXPORT_SYMBOL(snd_jack_add_new_kctl);

/**
 * snd_jack_new - Create a new jack
 * @card:  the card instance
 * @id:    an identifying string for this jack
 * @type:  a bitmask of enum snd_jack_type values that can be detected by
 *         this jack
 * @jjack: Used to provide the allocated jack object to the caller.
 * @initial_kctl: if true, create a kcontrol and add it to the jack list.
 * @phantom_jack: Don't create a input device for phantom jacks.
 *
 * Creates a new jack object.
 *
 * Return: Zero if successful, or a negative error code on failure.
 * On success @jjack will be initialised.
 */
int snd_jack_new(struct snd_card *card, const char *id, int type,
		 struct snd_jack **jjack, bool initial_kctl, bool phantom_jack)
{
	struct snd_jack *jack;
	struct snd_jack_kctl *jack_kctl = NULL;
	int err;
	int i;
	static struct snd_device_ops ops = {
		.dev_free = snd_jack_dev_free,
		.dev_register = snd_jack_dev_register,
		.dev_disconnect = snd_jack_dev_disconnect,
	};

	if (initial_kctl) {
		jack_kctl = snd_jack_kctl_new(card, id, type);
		if (!jack_kctl)
			return -ENOMEM;
	}

	jack = kzalloc(sizeof(struct snd_jack), GFP_KERNEL);
	if (jack == NULL)
		return -ENOMEM;

	jack->id = kstrdup(id, GFP_KERNEL);

	/* don't creat input device for phantom jack */
	if (!phantom_jack) {
		jack->input_dev = input_allocate_device();
		if (jack->input_dev == NULL) {
			err = -ENOMEM;
			goto fail_input;
		}

		jack->input_dev->phys = "ALSA";

		jack->type = type;

		for (i = 0; i < SND_JACK_SWITCH_TYPES; i++)
			if (type & (1 << i))
				input_set_capability(jack->input_dev, EV_SW,
						     jack_switch_types[i]);

	}

	err = snd_device_new(card, SNDRV_DEV_JACK, jack, &ops);
	if (err < 0)
		goto fail_input;

	jack->card = card;
	INIT_LIST_HEAD(&jack->kctl_list);

	if (initial_kctl)
		snd_jack_kctl_add(jack, jack_kctl);

	*jjack = jack;

	return 0;

fail_input:
	input_free_device(jack->input_dev);
	kfree(jack->id);
	kfree(jack);
	return err;
}
EXPORT_SYMBOL(snd_jack_new);

/**
 * snd_jack_set_parent - Set the parent device for a jack
 *
 * @jack:   The jack to configure
 * @parent: The device to set as parent for the jack.
 *
 * Set the parent for the jack devices in the device tree.  This
 * function is only valid prior to registration of the jack.  If no
 * parent is configured then the parent device will be the sound card.
 */
void snd_jack_set_parent(struct snd_jack *jack, struct device *parent)
{
	WARN_ON(jack->registered);

	jack->input_dev->dev.parent = parent;
}
EXPORT_SYMBOL(snd_jack_set_parent);

/**
 * snd_jack_set_key - Set a key mapping on a jack
 *
 * @jack:    The jack to configure
 * @type:    Jack report type for this key
 * @keytype: Input layer key type to be reported
 *
 * Map a SND_JACK_BTN_ button type to an input layer key, allowing
 * reporting of keys on accessories via the jack abstraction.  If no
 * mapping is provided but keys are enabled in the jack type then
 * BTN_n numeric buttons will be reported.
 *
 * If jacks are not reporting via the input API this call will have no
 * effect.
 *
 * Note that this is intended to be use by simple devices with small
 * numbers of keys that can be reported.  It is also possible to
 * access the input device directly - devices with complex input
 * capabilities on accessories should consider doing this rather than
 * using this abstraction.
 *
 * This function may only be called prior to registration of the jack.
 *
 * Return: Zero if successful, or a negative error code on failure.
 */
int snd_jack_set_key(struct snd_jack *jack, enum snd_jack_types type,
		     int keytype)
{
	int key = fls(SND_JACK_BTN_0) - fls(type);

	WARN_ON(jack->registered);

	if (!keytype || key >= ARRAY_SIZE(jack->key))
		return -EINVAL;

	jack->type |= type;
	jack->key[key] = keytype;

	return 0;
}
EXPORT_SYMBOL(snd_jack_set_key);

/**
 * snd_jack_report - Report the current status of a jack
 *
 * @jack:   The jack to report status for
 * @status: The current status of the jack
 */
void snd_jack_report(struct snd_jack *jack, int status)
{
	struct snd_jack_kctl *jack_kctl;
	int i;

	if (!jack)
		return;

	for (i = 0; i < ARRAY_SIZE(jack->key); i++) {
		int testbit = SND_JACK_BTN_0 >> i;

		if (jack->type & testbit)
			input_report_key(jack->input_dev, jack->key[i],
					 status & testbit);
	}

	for (i = 0; i < ARRAY_SIZE(jack_switch_types); i++) {
		int testbit = 1 << i;
		if (jack->type & testbit)
			input_report_switch(jack->input_dev,
					    jack_switch_types[i],
					    status & testbit);
	}

	input_sync(jack->input_dev);

	list_for_each_entry(jack_kctl, &jack->kctl_list, list)
		snd_kctl_jack_report(jack->card, jack_kctl->kctl,
					    status & jack_kctl->mask_bits);

}
EXPORT_SYMBOL(snd_jack_report);

MODULE_AUTHOR("Mark Brown <broonie@opensource.wolfsonmicro.com>");
MODULE_DESCRIPTION("Jack detection support for ALSA");
MODULE_LICENSE("GPL");
Commit	Line	Data
e76d8cea MB	1	/*
	2	* Jack abstraction layer
	3	*
	4	* Copyright 2008 Wolfson Microelectronics
	5	*
	6	* This program is free software; you can redistribute it and/or modify
	7	* it under the terms of the GNU General Public License as published by
	8	* the Free Software Foundation; either version 2 of the License, or
	9	* (at your option) any later version.
	10	*
	11	* This program is distributed in the hope that it will be useful,
	12	* but WITHOUT ANY WARRANTY; without even the implied warranty of
	13	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	14	* GNU General Public License for more details.
	15	*
	16	* You should have received a copy of the GNU General Public License
	17	* along with this program; if not, write to the Free Software
	18	* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
	19	*
	20	*/
	21
	22	#include <linux/input.h>
5a0e3ad6	23	#include <linux/slab.h>
da155d5b	24	#include <linux/module.h>
e76d8cea MB	25	#include <sound/jack.h>
e76d8cea MB	26	#include <sound/core.h>
9058cbe1 JY	27	#include <sound/control.h>
	28
	29	struct snd_jack_kctl {
	30	struct snd_kcontrol *kctl;
	31	struct list_head list; /* list of controls belong to the same jack */
	32	unsigned int mask_bits; /* only masked status bits are reported via kctl */
	33	};
e76d8cea	34
53803aea	35	static int jack_switch_types[SND_JACK_SWITCH_TYPES] = {
bd8a71a7 MB	36	SW_HEADPHONE_INSERT,
	37	SW_MICROPHONE_INSERT,
	38	SW_LINEOUT_INSERT,
	39	SW_JACK_PHYSICAL_INSERT,
d506fc32	40	SW_VIDEOOUT_INSERT,
7c2f8e40	41	SW_LINEIN_INSERT,
bd8a71a7 MB	42	};
bd8a71a7 MB	43
32b85442	44	static int snd_jack_dev_disconnect(struct snd_device *device)
e76d8cea MB	45	{
	46	struct snd_jack *jack = device->device_data;
	47
32b85442 TI	48	if (!jack->input_dev)
32b85442 TI	49	return 0;
9d59065c	50
e76d8cea MB	51	/* If the input device is registered with the input subsystem
	52	* then we need to use a different deallocator. */
	53	if (jack->registered)
	54	input_unregister_device(jack->input_dev);
	55	else
	56	input_free_device(jack->input_dev);
32b85442 TI	57	jack->input_dev = NULL;
	58	return 0;
	59	}
	60
	61	static int snd_jack_dev_free(struct snd_device *device)
	62	{
	63	struct snd_jack *jack = device->device_data;
9058cbe1 JY	64	struct snd_card *card = device->card;
9058cbe1 JY	65	struct snd_jack_kctl jack_kctl, tmp_jack_kctl;
32b85442	66
9058cbe1 JY	67	list_for_each_entry_safe(jack_kctl, tmp_jack_kctl, &jack->kctl_list, list) {
	68	list_del_init(&jack_kctl->list);
	69	snd_ctl_remove(card, jack_kctl->kctl);
	70	}
32b85442 TI	71	if (jack->private_free)
	72	jack->private_free(jack);
	73
	74	snd_jack_dev_disconnect(device);
e76d8cea	75
282cd76f	76	kfree(jack->id);
e76d8cea MB	77	kfree(jack);
	78
	79	return 0;
	80	}
	81
	82	static int snd_jack_dev_register(struct snd_device *device)
	83	{
	84	struct snd_jack *jack = device->device_data;
	85	struct snd_card *card = device->card;
ebb812cb	86	int err, i;
e76d8cea MB	87
e76d8cea MB	88	snprintf(jack->name, sizeof(jack->name), "%s %s",
2678f60d	89	card->shortname, jack->id);
e76d8cea MB	90	jack->input_dev->name = jack->name;
	91
	92	/* Default to the sound card device. */
	93	if (!jack->input_dev->dev.parent)
1f3fff7b	94	jack->input_dev->dev.parent = snd_card_get_device_link(card);
e76d8cea	95
ebb812cb MB	96	/* Add capabilities for any keys that are enabled */
	97	for (i = 0; i < ARRAY_SIZE(jack->key); i++) {
	98	int testbit = SND_JACK_BTN_0 >> i;
	99
	100	if (!(jack->type & testbit))
	101	continue;
	102
	103	if (!jack->key[i])
	104	jack->key[i] = BTN_0 + i;
	105
	106	input_set_capability(jack->input_dev, EV_KEY, jack->key[i]);
	107	}
	108
e76d8cea MB	109	err = input_register_device(jack->input_dev);
	110	if (err == 0)
	111	jack->registered = 1;
	112
	113	return err;
	114	}
	115
9058cbe1 JY	116	static void snd_jack_kctl_private_free(struct snd_kcontrol *kctl)
	117	{
	118	struct snd_jack_kctl *jack_kctl;
	119
	120	jack_kctl = kctl->private_data;
	121	if (jack_kctl) {
	122	list_del(&jack_kctl->list);
	123	kfree(jack_kctl);
	124	}
	125	}
	126
	127	static void snd_jack_kctl_add(struct snd_jack jack, struct snd_jack_kctl jack_kctl)
	128	{
	129	list_add_tail(&jack_kctl->list, &jack->kctl_list);
	130	}
	131
	132	static struct snd_jack_kctl * snd_jack_kctl_new(struct snd_card card, const char name, unsigned int mask)
	133	{
	134	struct snd_kcontrol *kctl;
	135	struct snd_jack_kctl *jack_kctl;
	136	int err;
	137
2ba2dfa1	138	kctl = snd_kctl_jack_new(name, card);
9058cbe1 JY	139	if (!kctl)
	140	return NULL;
	141
	142	err = snd_ctl_add(card, kctl);
	143	if (err < 0)
	144	return NULL;
	145
	146	jack_kctl = kzalloc(sizeof(*jack_kctl), GFP_KERNEL);
	147
	148	if (!jack_kctl)
	149	goto error;
	150
	151	jack_kctl->kctl = kctl;
	152	jack_kctl->mask_bits = mask;
	153
	154	kctl->private_data = jack_kctl;
	155	kctl->private_free = snd_jack_kctl_private_free;
	156
	157	return jack_kctl;
	158	error:
	159	snd_ctl_free_one(kctl);
	160	return NULL;
	161	}
	162
	163	/**
	164	* snd_jack_add_new_kctl - Create a new snd_jack_kctl and add it to jack
	165	* @jack: the jack instance which the kctl will attaching to
	166	* @name: the name for the snd_kcontrol object
	167	* @mask: a bitmask of enum snd_jack_type values that can be detected
	168	* by this snd_jack_kctl object.
	169	*
	170	* Creates a new snd_kcontrol object and adds it to the jack kctl_list.
	171	*
	172	* Return: Zero if successful, or a negative error code on failure.
	173	*/
	174	int snd_jack_add_new_kctl(struct snd_jack jack, const char name, int mask)
	175	{
	176	struct snd_jack_kctl *jack_kctl;
	177
	178	jack_kctl = snd_jack_kctl_new(jack->card, name, mask);
	179	if (!jack_kctl)
	180	return -ENOMEM;
	181
	182	snd_jack_kctl_add(jack, jack_kctl);
	183	return 0;
	184	}
	185	EXPORT_SYMBOL(snd_jack_add_new_kctl);
	186
e76d8cea MB	187	/**
	188	* snd_jack_new - Create a new jack
	189	* @card: the card instance
	190	* @id: an identifying string for this jack
	191	* @type: a bitmask of enum snd_jack_type values that can be detected by
	192	* this jack
	193	* @jjack: Used to provide the allocated jack object to the caller.
4e3f0dc6 JY	194	* @initial_kctl: if true, create a kcontrol and add it to the jack list.
4e3f0dc6 JY	195	* @phantom_jack: Don't create a input device for phantom jacks.
e76d8cea MB	196	*
	197	* Creates a new jack object.
	198	*
eb7c06e8 YB	199	* Return: Zero if successful, or a negative error code on failure.
eb7c06e8 YB	200	* On success @jjack will be initialised.
e76d8cea MB	201	*/
e76d8cea MB	202	int snd_jack_new(struct snd_card card, const char id, int type,
4e3f0dc6	203	struct snd_jack **jjack, bool initial_kctl, bool phantom_jack)
e76d8cea MB	204	{
e76d8cea MB	205	struct snd_jack *jack;
4e3f0dc6	206	struct snd_jack_kctl *jack_kctl = NULL;
e76d8cea	207	int err;
bd8a71a7	208	int i;
e76d8cea MB	209	static struct snd_device_ops ops = {
	210	.dev_free = snd_jack_dev_free,
	211	.dev_register = snd_jack_dev_register,
32b85442	212	.dev_disconnect = snd_jack_dev_disconnect,
e76d8cea MB	213	};
e76d8cea MB	214
4e3f0dc6 JY	215	if (initial_kctl) {
	216	jack_kctl = snd_jack_kctl_new(card, id, type);
	217	if (!jack_kctl)
	218	return -ENOMEM;
	219	}
	220
e76d8cea MB	221	jack = kzalloc(sizeof(struct snd_jack), GFP_KERNEL);
	222	if (jack == NULL)
	223	return -ENOMEM;
	224
282cd76f	225	jack->id = kstrdup(id, GFP_KERNEL);
e76d8cea	226
4e3f0dc6 JY	227	/* don't creat input device for phantom jack */
	228	if (!phantom_jack) {
	229	jack->input_dev = input_allocate_device();
	230	if (jack->input_dev == NULL) {
	231	err = -ENOMEM;
	232	goto fail_input;
	233	}
e76d8cea	234
4e3f0dc6	235	jack->input_dev->phys = "ALSA";
e76d8cea	236
4e3f0dc6	237	jack->type = type;
e76d8cea	238
4e3f0dc6 JY	239	for (i = 0; i < SND_JACK_SWITCH_TYPES; i++)
	240	if (type & (1 << i))
	241	input_set_capability(jack->input_dev, EV_SW,
	242	jack_switch_types[i]);
	243
	244	}
e76d8cea MB	245
	246	err = snd_device_new(card, SNDRV_DEV_JACK, jack, &ops);
	247	if (err < 0)
	248	goto fail_input;
	249
9058cbe1 JY	250	jack->card = card;
	251	INIT_LIST_HEAD(&jack->kctl_list);
	252
4e3f0dc6 JY	253	if (initial_kctl)
	254	snd_jack_kctl_add(jack, jack_kctl);
	255
e76d8cea MB	256	*jjack = jack;
	257
	258	return 0;
	259
	260	fail_input:
	261	input_free_device(jack->input_dev);
eeda276b	262	kfree(jack->id);
e76d8cea MB	263	kfree(jack);
	264	return err;
	265	}
	266	EXPORT_SYMBOL(snd_jack_new);
	267
	268	/**
	269	* snd_jack_set_parent - Set the parent device for a jack
	270	*
	271	* @jack: The jack to configure
	272	* @parent: The device to set as parent for the jack.
	273	*
a2e888f0	274	* Set the parent for the jack devices in the device tree. This
e76d8cea MB	275	* function is only valid prior to registration of the jack. If no
	276	* parent is configured then the parent device will be the sound card.
	277	*/
	278	void snd_jack_set_parent(struct snd_jack jack, struct device parent)
	279	{
	280	WARN_ON(jack->registered);
	281
	282	jack->input_dev->dev.parent = parent;
	283	}
	284	EXPORT_SYMBOL(snd_jack_set_parent);
	285
ebb812cb MB	286	/**
	287	* snd_jack_set_key - Set a key mapping on a jack
	288	*
	289	* @jack: The jack to configure
	290	* @type: Jack report type for this key
	291	* @keytype: Input layer key type to be reported
	292	*
	293	* Map a SND_JACK_BTN_ button type to an input layer key, allowing
	294	* reporting of keys on accessories via the jack abstraction. If no
	295	* mapping is provided but keys are enabled in the jack type then
	296	* BTN_n numeric buttons will be reported.
	297	*
a2e888f0 MB	298	* If jacks are not reporting via the input API this call will have no
	299	* effect.
	300	*
ebb812cb MB	301	* Note that this is intended to be use by simple devices with small
	302	* numbers of keys that can be reported. It is also possible to
	303	* access the input device directly - devices with complex input
	304	* capabilities on accessories should consider doing this rather than
	305	* using this abstraction.
	306	*
	307	* This function may only be called prior to registration of the jack.
eb7c06e8 YB	308	*
eb7c06e8 YB	309	* Return: Zero if successful, or a negative error code on failure.
ebb812cb MB	310	*/
	311	int snd_jack_set_key(struct snd_jack *jack, enum snd_jack_types type,
	312	int keytype)
	313	{
	314	int key = fls(SND_JACK_BTN_0) - fls(type);
	315
	316	WARN_ON(jack->registered);
	317
	318	if (!keytype \|\| key >= ARRAY_SIZE(jack->key))
	319	return -EINVAL;
	320
	321	jack->type \|= type;
	322	jack->key[key] = keytype;
	323
	324	return 0;
	325	}
	326	EXPORT_SYMBOL(snd_jack_set_key);
	327
e76d8cea MB	328	/**
	329	* snd_jack_report - Report the current status of a jack
	330	*
	331	* @jack: The jack to report status for
	332	* @status: The current status of the jack
	333	*/
	334	void snd_jack_report(struct snd_jack *jack, int status)
	335	{
9058cbe1	336	struct snd_jack_kctl *jack_kctl;
bd8a71a7 MB	337	int i;
bd8a71a7 MB	338
9a3f371e MB	339	if (!jack)
	340	return;
	341
ebb812cb MB	342	for (i = 0; i < ARRAY_SIZE(jack->key); i++) {
	343	int testbit = SND_JACK_BTN_0 >> i;
	344
	345	if (jack->type & testbit)
	346	input_report_key(jack->input_dev, jack->key[i],
	347	status & testbit);
	348	}
	349
1c6e555c	350	for (i = 0; i < ARRAY_SIZE(jack_switch_types); i++) {
bd8a71a7 MB	351	int testbit = 1 << i;
bd8a71a7 MB	352	if (jack->type & testbit)
1c6e555c MB	353	input_report_switch(jack->input_dev,
1c6e555c MB	354	jack_switch_types[i],
bd8a71a7 MB	355	status & testbit);
bd8a71a7 MB	356	}
e76d8cea MB	357
e76d8cea MB	358	input_sync(jack->input_dev);
9058cbe1 JY	359
	360	list_for_each_entry(jack_kctl, &jack->kctl_list, list)
	361	snd_kctl_jack_report(jack->card, jack_kctl->kctl,
	362	status & jack_kctl->mask_bits);
	363
e76d8cea MB	364	}
	365	EXPORT_SYMBOL(snd_jack_report);
	366
	367	MODULE_AUTHOR("Mark Brown <broonie@opensource.wolfsonmicro.com>");
	368	MODULE_DESCRIPTION("Jack detection support for ALSA");
	369	MODULE_LICENSE("GPL");