3  *  Jack abstraction layer
14 #include <sound/jack.h>
20 	struct list_head list;  /* list of controls belong to the same jack */
22 	struct snd_jack *jack;  /* pointer to struct snd_jack */  member
40 static void snd_jack_remove_debugfs(struct snd_jack *jack);
44 	struct snd_jack *jack = device->device_data;  in snd_jack_dev_disconnect()  local
46 	snd_jack_remove_debugfs(jack);  in snd_jack_dev_disconnect()
49 	guard(mutex)(&jack->input_dev_lock);  in snd_jack_dev_disconnect()
50 	if (!jack->input_dev)  in snd_jack_dev_disconnect()
55 	if (jack->registered)  in snd_jack_dev_disconnect()
56 		input_unregister_device(jack->input_dev);  in snd_jack_dev_disconnect()
58 		input_free_device(jack->input_dev);  in snd_jack_dev_disconnect()
59 	jack->input_dev = NULL;  in snd_jack_dev_disconnect()
66 	struct snd_jack *jack = device->device_data;  in snd_jack_dev_free()  local
70 	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 	guard(mutex)(&jack->input_dev_lock);  in snd_jack_dev_register()
97 	if (!jack->input_dev)  in snd_jack_dev_register()
100 	jack->input_dev->name = jack->name;  in snd_jack_dev_register()
103 	if (!jack->input_dev->dev.parent)  in snd_jack_dev_register()
104 		jack->input_dev->dev.parent = snd_card_get_device_link(card);  in snd_jack_dev_register()
107 	for (i = 0; i < ARRAY_SIZE(jack->key); i++) {  in snd_jack_dev_register()
110 		if (!(jack->type & testbit))  in snd_jack_dev_register()
113 		if (!jack->key[i])  in snd_jack_dev_register()
114 			jack->key[i] = BTN_0 + i;  in snd_jack_dev_register()
116 		input_set_capability(jack->input_dev, EV_KEY, jack->key[i]);  in snd_jack_dev_register()
119 	err = input_register_device(jack->input_dev);  in snd_jack_dev_register()
121 		jack->registered = 1;  in snd_jack_dev_register()
130 	struct snd_jack *jack;  in snd_jack_inject_report()  local
137 	jack = jack_kctl->jack;  in snd_jack_inject_report()
140 		snd_kctl_jack_report(jack->card, jack_kctl->kctl,  in snd_jack_inject_report()
144 	if (!jack->input_dev)  in snd_jack_inject_report()
147 	for (i = 0; i < ARRAY_SIZE(jack->key); i++) {  in snd_jack_inject_report()
150 		if (jack->type & testbit)  in snd_jack_inject_report()
151 			input_report_key(jack->input_dev, jack->key[i],  in snd_jack_inject_report()
158 		if (jack->type & testbit)  in snd_jack_inject_report()
159 			input_report_switch(jack->input_dev,  in snd_jack_inject_report()
164 	input_sync(jack->input_dev);  in snd_jack_inject_report()
175 	len = scnprintf(buf, sizeof(buf), "%s: %s\t\t%s: %i\n", "Jack", jack_kctl->kctl->id.name,  in sw_inject_enable_read()
201 		snd_jack_report(jack_kctl->jack, jack_kctl->jack->hw_status_cache);  in sw_inject_enable_write()
240 /* the bit definition is aligned with snd_jack_types in jack.h */
300 	len = parse_mask_bits(jack_kctl->jack->type, buf, sizeof(buf));  in jack_type_read()
344 static int snd_jack_debugfs_add_inject_node(struct snd_jack *jack,  in snd_jack_debugfs_add_inject_node()  argument
363 	jack_kctl->jack_debugfs_root = debugfs_create_dir(tname, jack->card->debugfs_root);  in snd_jack_debugfs_add_inject_node()
388 static void snd_jack_remove_debugfs(struct snd_jack *jack)  in snd_jack_remove_debugfs()  argument
392 	list_for_each_entry(jack_kctl, &jack->kctl_list, list) {  in snd_jack_remove_debugfs()
398 static int snd_jack_debugfs_add_inject_node(struct snd_jack *jack,  in snd_jack_debugfs_add_inject_node()  argument
404 static void snd_jack_remove_debugfs(struct snd_jack *jack)  in snd_jack_remove_debugfs()  argument
420 static void snd_jack_kctl_add(struct snd_jack *jack, struct snd_jack_kctl *jack_kctl)  in snd_jack_kctl_add()  argument
422 	jack_kctl->jack = jack;  in snd_jack_kctl_add()
423 	list_add_tail(&jack_kctl->list, &jack->kctl_list);  in snd_jack_kctl_add()
424 	snd_jack_debugfs_add_inject_node(jack, jack_kctl);  in snd_jack_kctl_add()
459  * snd_jack_add_new_kctl - Create a new snd_jack_kctl and add it to jack
460  * @jack:  the jack instance which the kctl will attaching to
465  * Creates a new snd_kcontrol object and adds it to the jack kctl_list.
469 int snd_jack_add_new_kctl(struct snd_jack *jack, const char * name, int mask)  in snd_jack_add_new_kctl()  argument
473 	jack_kctl = snd_jack_kctl_new(jack->card, name, mask);  in snd_jack_add_new_kctl()
477 	snd_jack_kctl_add(jack, jack_kctl);  in snd_jack_add_new_kctl()
483  * snd_jack_new - Create a new jack
485  * @id:    an identifying string for this jack
487  *         this jack
488  * @jjack: Used to provide the allocated jack object to the caller.
489  * @initial_kctl: if true, create a kcontrol and add it to the jack list.
492  * Creates a new jack object.
500 	struct snd_jack *jack;  in snd_jack_new()  local
517 	jack = kzalloc(sizeof(struct snd_jack), GFP_KERNEL);  in snd_jack_new()
518 	if (jack == NULL)  in snd_jack_new()
521 	jack->id = kstrdup(id, GFP_KERNEL);  in snd_jack_new()
522 	if (jack->id == NULL) {  in snd_jack_new()
523 		kfree(jack);  in snd_jack_new()
528 	mutex_init(&jack->input_dev_lock);  in snd_jack_new()
530 	/* don't create input device for phantom jack */  in snd_jack_new()
534 		jack->input_dev = input_allocate_device();  in snd_jack_new()
535 		if (jack->input_dev == NULL) {  in snd_jack_new()
540 		jack->input_dev->phys = "ALSA";  in snd_jack_new()
542 		jack->type = type;  in snd_jack_new()
546 				input_set_capability(jack->input_dev, EV_SW,  in snd_jack_new()
552 	err = snd_device_new(card, SNDRV_DEV_JACK, jack, &ops);  in snd_jack_new()
556 	jack->card = card;  in snd_jack_new()
557 	INIT_LIST_HEAD(&jack->kctl_list);  in snd_jack_new()
560 		snd_jack_kctl_add(jack, jack_kctl);  in snd_jack_new()
562 	*jjack = jack;  in snd_jack_new()
568 	input_free_device(jack->input_dev);  in snd_jack_new()
570 	kfree(jack->id);  in snd_jack_new()
571 	kfree(jack);  in snd_jack_new()
578  * snd_jack_set_parent - Set the parent device for a jack
580  * @jack:   The jack to configure
581  * @parent: The device to set as parent for the jack.
583  * Set the parent for the jack devices in the device tree.  This
584  * function is only valid prior to registration of the jack.  If no
587 void snd_jack_set_parent(struct snd_jack *jack, struct device *parent)  in snd_jack_set_parent()  argument
589 	WARN_ON(jack->registered);  in snd_jack_set_parent()
590 	guard(mutex)(&jack->input_dev_lock);  in snd_jack_set_parent()
591 	if (jack->input_dev)  in snd_jack_set_parent()
592 		jack->input_dev->dev.parent = parent;  in snd_jack_set_parent()
597  * snd_jack_set_key - Set a key mapping on a jack
599  * @jack:    The jack to configure
600  * @type:    Jack report type for this key
604  * reporting of keys on accessories via the jack abstraction.  If no
605  * mapping is provided but keys are enabled in the jack type then
617  * This function may only be called prior to registration of the jack.
621 int snd_jack_set_key(struct snd_jack *jack, enum snd_jack_types type,  in snd_jack_set_key()  argument
626 	WARN_ON(jack->registered);  in snd_jack_set_key()
628 	if (!keytype || key >= ARRAY_SIZE(jack->key))  in snd_jack_set_key()
631 	jack->type |= type;  in snd_jack_set_key()
632 	jack->key[key] = keytype;  in snd_jack_set_key()
639  * snd_jack_report - Report the current status of a jack
643  * @jack:   The jack to report status for
644  * @status: The current status of the jack
646 void snd_jack_report(struct snd_jack *jack, int status)  in snd_jack_report()  argument
655 	if (!jack)  in snd_jack_report()
658 	jack->hw_status_cache = status;  in snd_jack_report()
660 	list_for_each_entry(jack_kctl, &jack->kctl_list, list)  in snd_jack_report()
664 			snd_kctl_jack_report(jack->card, jack_kctl->kctl,  in snd_jack_report()
668 	idev = input_get_device(jack->input_dev);  in snd_jack_report()
672 	for (i = 0; i < ARRAY_SIZE(jack->key); i++) {  in snd_jack_report()
675 		if (jack->type & testbit)  in snd_jack_report()
676 			input_report_key(idev, jack->key[i],  in snd_jack_report()
683 		if (jack->type & testbit)  in snd_jack_report()