2  *  Jack abstraction layer
25 #include <sound/jack.h>
31 	struct list_head list;  /* list of controls belong to the same jack */
49 	struct snd_jack *jack = device->device_data;  in snd_jack_dev_disconnect()  local
51 	if (!jack->input_dev)  in snd_jack_dev_disconnect()
56 	if (jack->registered)  in snd_jack_dev_disconnect()
57 		input_unregister_device(jack->input_dev);  in snd_jack_dev_disconnect()
59 		input_free_device(jack->input_dev);  in snd_jack_dev_disconnect()
60 	jack->input_dev = NULL;  in snd_jack_dev_disconnect()
67 	struct snd_jack *jack = device->device_data;  in snd_jack_dev_free()  local
71 	list_for_each_entry_safe(jack_kctl, tmp_jack_kctl, &jack->kctl_list, list) {  in snd_jack_dev_free()
75 	if (jack->private_free)  in snd_jack_dev_free()
76 		jack->private_free(jack);  in snd_jack_dev_free()
80 	kfree(jack->id);  in snd_jack_dev_free()
81 	kfree(jack);  in snd_jack_dev_free()
89 	struct snd_jack *jack = device->device_data;  in snd_jack_dev_register()  local
93 	snprintf(jack->name, sizeof(jack->name), "%s %s",  in snd_jack_dev_register()
94 		 card->shortname, jack->id);  in snd_jack_dev_register()
96 	if (!jack->input_dev)  in snd_jack_dev_register()
99 	jack->input_dev->name = jack->name;  in snd_jack_dev_register()
102 	if (!jack->input_dev->dev.parent)  in snd_jack_dev_register()
103 		jack->input_dev->dev.parent = snd_card_get_device_link(card);  in snd_jack_dev_register()
106 	for (i = 0; i < ARRAY_SIZE(jack->key); i++) {  in snd_jack_dev_register()
109 		if (!(jack->type & testbit))  in snd_jack_dev_register()
112 		if (!jack->key[i])  in snd_jack_dev_register()
113 			jack->key[i] = BTN_0 + i;  in snd_jack_dev_register()
115 		input_set_capability(jack->input_dev, EV_KEY, jack->key[i]);  in snd_jack_dev_register()
118 	err = input_register_device(jack->input_dev);  in snd_jack_dev_register()
120 		jack->registered = 1;  in snd_jack_dev_register()
137 static void snd_jack_kctl_add(struct snd_jack *jack, struct snd_jack_kctl *jack_kctl)  in snd_jack_kctl_add()  argument
139 	list_add_tail(&jack_kctl->list, &jack->kctl_list);  in snd_jack_kctl_add()
174  * snd_jack_add_new_kctl - Create a new snd_jack_kctl and add it to jack
175  * @jack:  the jack instance which the kctl will attaching to
180  * Creates a new snd_kcontrol object and adds it to the jack kctl_list.
184 int snd_jack_add_new_kctl(struct snd_jack *jack, const char * name, int mask)  in snd_jack_add_new_kctl()  argument
188 	jack_kctl = snd_jack_kctl_new(jack->card, name, mask);  in snd_jack_add_new_kctl()
192 	snd_jack_kctl_add(jack, jack_kctl);  in snd_jack_add_new_kctl()
198  * snd_jack_new - Create a new jack
200  * @id:    an identifying string for this jack
202  *         this jack
203  * @jjack: Used to provide the allocated jack object to the caller.
204  * @initial_kctl: if true, create a kcontrol and add it to the jack list.
207  * Creates a new jack object.
215 	struct snd_jack *jack;  in snd_jack_new()  local
232 	jack = kzalloc(sizeof(struct snd_jack), GFP_KERNEL);  in snd_jack_new()
233 	if (jack == NULL)  in snd_jack_new()
236 	jack->id = kstrdup(id, GFP_KERNEL);  in snd_jack_new()
238 	/* don't creat input device for phantom jack */  in snd_jack_new()
243 		jack->input_dev = input_allocate_device();  in snd_jack_new()
244 		if (jack->input_dev == NULL) {  in snd_jack_new()
249 		jack->input_dev->phys = "ALSA";  in snd_jack_new()
251 		jack->type = type;  in snd_jack_new()
255 				input_set_capability(jack->input_dev, EV_SW,  in snd_jack_new()
261 	err = snd_device_new(card, SNDRV_DEV_JACK, jack, &ops);  in snd_jack_new()
265 	jack->card = card;  in snd_jack_new()
266 	INIT_LIST_HEAD(&jack->kctl_list);  in snd_jack_new()
269 		snd_jack_kctl_add(jack, jack_kctl);  in snd_jack_new()
271 	*jjack = jack;  in snd_jack_new()
277 	input_free_device(jack->input_dev);  in snd_jack_new()
279 	kfree(jack->id);  in snd_jack_new()
280 	kfree(jack);  in snd_jack_new()
287  * snd_jack_set_parent - Set the parent device for a jack
289  * @jack:   The jack to configure
290  * @parent: The device to set as parent for the jack.
292  * Set the parent for the jack devices in the device tree.  This
293  * function is only valid prior to registration of the jack.  If no
296 void snd_jack_set_parent(struct snd_jack *jack, struct device *parent)  in snd_jack_set_parent()  argument
298 	WARN_ON(jack->registered);  in snd_jack_set_parent()
299 	if (!jack->input_dev)  in snd_jack_set_parent()
302 	jack->input_dev->dev.parent = parent;  in snd_jack_set_parent()
307  * snd_jack_set_key - Set a key mapping on a jack
309  * @jack:    The jack to configure
310  * @type:    Jack report type for this key
314  * reporting of keys on accessories via the jack abstraction.  If no
315  * mapping is provided but keys are enabled in the jack type then
327  * This function may only be called prior to registration of the jack.
331 int snd_jack_set_key(struct snd_jack *jack, enum snd_jack_types type,  in snd_jack_set_key()  argument
336 	WARN_ON(jack->registered);  in snd_jack_set_key()
338 	if (!keytype || key >= ARRAY_SIZE(jack->key))  in snd_jack_set_key()
341 	jack->type |= type;  in snd_jack_set_key()
342 	jack->key[key] = keytype;  in snd_jack_set_key()
349  * snd_jack_report - Report the current status of a jack
351  * @jack:   The jack to report status for
352  * @status: The current status of the jack
354 void snd_jack_report(struct snd_jack *jack, int status)  in snd_jack_report()  argument
361 	if (!jack)  in snd_jack_report()
364 	list_for_each_entry(jack_kctl, &jack->kctl_list, list)  in snd_jack_report()
365 		snd_kctl_jack_report(jack->card, jack_kctl->kctl,  in snd_jack_report()
369 	if (!jack->input_dev)  in snd_jack_report()
372 	for (i = 0; i < ARRAY_SIZE(jack->key); i++) {  in snd_jack_report()
375 		if (jack->type & testbit)  in snd_jack_report()
376 			input_report_key(jack->input_dev, jack->key[i],  in snd_jack_report()
382 		if (jack->type & testbit)  in snd_jack_report()
383 			input_report_switch(jack->input_dev,  in snd_jack_report()
388 	input_sync(jack->input_dev);  in snd_jack_report()