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Merge branch 'topic/jack' into for-2.6.35

This commit is contained in:
Mark Brown 2010-03-19 12:48:10 +00:00
parent 698c375666 ebb812cb8d
commit a655b96c24
2 changed files with 73 additions and 6 deletions
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8
include/sound/jack.h
View File

@ -42,6 +42,11 @@ enum snd_jack_types {
SND_JACK_MECHANICAL = 0x0008, /* If detected separately */
SND_JACK_VIDEOOUT = 0x0010,
SND_JACK_AVOUT = SND_JACK_LINEOUT | SND_JACK_VIDEOOUT,
/* Kept separate from switches to facilitate implementation */
SND_JACK_BTN_0 = 0x4000,
SND_JACK_BTN_1 = 0x2000,
SND_JACK_BTN_2 = 0x1000,
};
struct snd_jack {
@ -50,6 +55,7 @@ struct snd_jack {
int type;
const char *id;
char name[100];
unsigned int key[3]; /* Keep in sync with definitions above */
void *private_data;
void (*private_free)(struct snd_jack *);
};
@ -59,6 +65,8 @@ struct snd_jack {
int snd_jack_new(struct snd_card *card, const char *id, int type,
struct snd_jack **jack);
void snd_jack_set_parent(struct snd_jack *jack, struct device *parent);
int snd_jack_set_key(struct snd_jack *jack, enum snd_jack_types type,
int keytype);
void snd_jack_report(struct snd_jack *jack, int status);

71
sound/core/jack.c
View File

@ -23,7 +23,7 @@
#include <sound/jack.h>
#include <sound/core.h>
static int jack_types[] = {
static int jack_switch_types[] = {
SW_HEADPHONE_INSERT,
SW_MICROPHONE_INSERT,
SW_LINEOUT_INSERT,
@ -55,7 +55,7 @@ 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;
int err, i;
snprintf(jack->name, sizeof(jack->name), "%s %s",
card->shortname, jack->id);
@ -65,6 +65,19 @@ static int snd_jack_dev_register(struct snd_device *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;
@ -112,10 +125,10 @@ int snd_jack_new(struct snd_card *card, const char *id, int type,
jack->type = type;
for (i = 0; i < ARRAY_SIZE(jack_types); i++)
for (i = 0; i < ARRAY_SIZE(jack_switch_types); i++)
if (type & (1 << i))
input_set_capability(jack->input_dev, EV_SW,
jack_types[i]);
jack_switch_types[i]);
err = snd_device_new(card, SNDRV_DEV_JACK, jack, &ops);
if (err < 0)
@ -150,6 +163,43 @@ void snd_jack_set_parent(struct snd_jack *jack, struct device *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.
*
* 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.
*/
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
*
@ -163,10 +213,19 @@ void snd_jack_report(struct snd_jack *jack, int status)
if (!jack)
return;
for (i = 0; i < ARRAY_SIZE(jack_types); i++) {
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_types[i],
input_report_switch(jack->input_dev,
jack_switch_types[i],
status & testbit);
}