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-rw-r--r--sound/core/Kconfig3
-rw-r--r--sound/core/Makefile3
-rw-r--r--sound/core/ctljack.c41
-rw-r--r--sound/core/jack.c133
4 files changed, 157 insertions, 23 deletions
diff --git a/sound/core/Kconfig b/sound/core/Kconfig
index 313f22e9d929..63cc2e967099 100644
--- a/sound/core/Kconfig
+++ b/sound/core/Kconfig
@@ -221,9 +221,6 @@ config SND_PCM_XRUN_DEBUG
config SND_VMASTER
bool
-config SND_KCTL_JACK
- bool
-
config SND_DMA_SGBUF
def_bool y
depends on X86
diff --git a/sound/core/Makefile b/sound/core/Makefile
index ae1d32b084fd..7dd17a365269 100644
--- a/sound/core/Makefile
+++ b/sound/core/Makefile
@@ -11,8 +11,7 @@ endif
snd-$(CONFIG_ISA_DMA_API) += isadma.o
snd-$(CONFIG_SND_OSSEMUL) += sound_oss.o
snd-$(CONFIG_SND_VMASTER) += vmaster.o
-snd-$(CONFIG_SND_KCTL_JACK) += ctljack.o
-snd-$(CONFIG_SND_JACK) += jack.o
+snd-$(CONFIG_SND_JACK) += ctljack.o jack.o
snd-pcm-y := pcm.o pcm_native.o pcm_lib.o pcm_timer.o pcm_misc.o \
pcm_memory.o memalloc.o
diff --git a/sound/core/ctljack.c b/sound/core/ctljack.c
index e4b38fbe51da..8f8d1033425c 100644
--- a/sound/core/ctljack.c
+++ b/sound/core/ctljack.c
@@ -31,19 +31,49 @@ static struct snd_kcontrol_new jack_detect_kctl = {
.get = jack_detect_kctl_get,
};
+static int get_available_index(struct snd_card *card, const char *name)
+{
+ struct snd_ctl_elem_id sid;
+
+ memset(&sid, 0, sizeof(sid));
+
+ sid.index = 0;
+ sid.iface = SNDRV_CTL_ELEM_IFACE_CARD;
+ strlcpy(sid.name, name, sizeof(sid.name));
+
+ while (snd_ctl_find_id(card, &sid))
+ sid.index++;
+
+ return sid.index;
+}
+
+static void jack_kctl_name_gen(char *name, const char *src_name, int size)
+{
+ size_t count = strlen(src_name);
+ bool need_cat = true;
+
+ /* remove redundant " Jack" from src_name */
+ if (count >= 5)
+ need_cat = strncmp(&src_name[count - 5], " Jack", 5) ? true : false;
+
+ snprintf(name, size, need_cat ? "%s Jack" : "%s", src_name);
+
+}
+
struct snd_kcontrol *
-snd_kctl_jack_new(const char *name, int idx, void *private_data)
+snd_kctl_jack_new(const char *name, struct snd_card *card)
{
struct snd_kcontrol *kctl;
- kctl = snd_ctl_new1(&jack_detect_kctl, private_data);
+
+ kctl = snd_ctl_new1(&jack_detect_kctl, NULL);
if (!kctl)
return NULL;
- snprintf(kctl->id.name, sizeof(kctl->id.name), "%s Jack", name);
- kctl->id.index = idx;
+
+ jack_kctl_name_gen(kctl->id.name, name, sizeof(kctl->id.name));
+ kctl->id.index = get_available_index(card, name);
kctl->private_value = 0;
return kctl;
}
-EXPORT_SYMBOL_GPL(snd_kctl_jack_new);
void snd_kctl_jack_report(struct snd_card *card,
struct snd_kcontrol *kctl, bool status)
@@ -53,4 +83,3 @@ void snd_kctl_jack_report(struct snd_card *card,
kctl->private_value = status;
snd_ctl_notify(card, SNDRV_CTL_EVENT_MASK_VALUE, &kctl->id);
}
-EXPORT_SYMBOL_GPL(snd_kctl_jack_report);
diff --git a/sound/core/jack.c b/sound/core/jack.c
index 8658578eb584..e8b51f52e7df 100644
--- a/sound/core/jack.c
+++ b/sound/core/jack.c
@@ -24,6 +24,13 @@
#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,
@@ -54,7 +61,13 @@ static int snd_jack_dev_disconnect(struct snd_device *device)
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);
@@ -100,6 +113,77 @@ static int snd_jack_dev_register(struct snd_device *device)
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
@@ -107,6 +191,8 @@ static int snd_jack_dev_register(struct snd_device *device)
* @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.
*
@@ -114,9 +200,10 @@ static int snd_jack_dev_register(struct snd_device *device)
* On success @jjack will be initialised.
*/
int snd_jack_new(struct snd_card *card, const char *id, int type,
- struct snd_jack **jjack)
+ 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 = {
@@ -125,31 +212,47 @@ int snd_jack_new(struct snd_card *card, const char *id, int type,
.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);
- jack->input_dev = input_allocate_device();
- if (jack->input_dev == NULL) {
- err = -ENOMEM;
- goto fail_input;
- }
+ /* 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->input_dev->phys = "ALSA";
- jack->type = type;
+ 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]);
+ 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;
@@ -230,6 +333,7 @@ EXPORT_SYMBOL(snd_jack_set_key);
*/
void snd_jack_report(struct snd_jack *jack, int status)
{
+ struct snd_jack_kctl *jack_kctl;
int i;
if (!jack)
@@ -252,6 +356,11 @@ void snd_jack_report(struct snd_jack *jack, int status)
}
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);
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-25 23:28:27 +0000