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Commit bd8a71a7 authored by Mark Brown's avatar Mark Brown
Browse files

ALSA: Reduce boilerplate for new jack types 



Use a lookup table rather than explicit code to map input subsystem jack
types into ASoC ones, implemented as suggested by Takashi Iwai.

Signed-off-by: default avatarMark Brown <broonie@opensource.wolfsonmicro.com>
parent 6a94cb73

include/sound/jack.h

+3 −0
Original line number Diff line number Diff line
@@ -30,6 +30,9 @@ struct input_dev; 
/**

 * Jack types which can be reported.  These values are used as a

 * bitmask.

 *

 * Note that this must be kept in sync with the lookup table in

 * sound/core/jack.c.

 */

enum snd_jack_types {

	SND_JACK_HEADPHONE	= 0x0001,

sound/core/jack.c

+20 −24
Original line number Diff line number Diff line
@@ -23,6 +23,13 @@ 
#include <sound/jack.h>

#include <sound/core.h>



static int jack_types[] = {

	SW_HEADPHONE_INSERT,

	SW_MICROPHONE_INSERT,

	SW_LINEOUT_INSERT,

	SW_JACK_PHYSICAL_INSERT,

};



static int snd_jack_dev_free(struct snd_device *device)

{

	struct snd_jack *jack = device->device_data;
@@ -79,6 +86,7 @@ int snd_jack_new(struct snd_card *card, const char *id, int type, 
{

	struct snd_jack *jack;

	int err;

	int i;

	static struct snd_device_ops ops = {

		.dev_free = snd_jack_dev_free,

		.dev_register = snd_jack_dev_register,
@@ -100,18 +108,10 @@ int snd_jack_new(struct snd_card *card, const char *id, int type, 


	jack->type = type;



	if (type & SND_JACK_HEADPHONE)

		input_set_capability(jack->input_dev, EV_SW,

				     SW_HEADPHONE_INSERT);

	if (type & SND_JACK_LINEOUT)

		input_set_capability(jack->input_dev, EV_SW,

				     SW_LINEOUT_INSERT);

	if (type & SND_JACK_MICROPHONE)

	for (i = 0; i < ARRAY_SIZE(jack_types); i++)

		if (type & (1 << i))

			input_set_capability(jack->input_dev, EV_SW,

				     SW_MICROPHONE_INSERT);

	if (type & SND_JACK_MECHANICAL)

		input_set_capability(jack->input_dev, EV_SW,

				     SW_JACK_PHYSICAL_INSERT);

					     jack_types[i]);



	err = snd_device_new(card, SNDRV_DEV_JACK, jack, &ops);

	if (err < 0)
@@ -154,21 +154,17 @@ EXPORT_SYMBOL(snd_jack_set_parent); 
 */

void snd_jack_report(struct snd_jack *jack, int status)

{

	int i;



	if (!jack)

		return;



	if (jack->type & SND_JACK_HEADPHONE)

		input_report_switch(jack->input_dev, SW_HEADPHONE_INSERT,

				    status & SND_JACK_HEADPHONE);

	if (jack->type & SND_JACK_LINEOUT)

		input_report_switch(jack->input_dev, SW_LINEOUT_INSERT,

				    status & SND_JACK_LINEOUT);

	if (jack->type & SND_JACK_MICROPHONE)

		input_report_switch(jack->input_dev, SW_MICROPHONE_INSERT,

				    status & SND_JACK_MICROPHONE);

	if (jack->type & SND_JACK_MECHANICAL)

		input_report_switch(jack->input_dev, SW_JACK_PHYSICAL_INSERT,

				    status & SND_JACK_MECHANICAL);

	for (i = 0; i < ARRAY_SIZE(jack_types); i++) {

		int testbit = 1 << i;

		if (jack->type & testbit)

			input_report_switch(jack->input_dev, jack_types[i],

					    status & testbit);

	}



	input_sync(jack->input_dev);

}