| Author | Tokens | Token Proportion | Commits | Commit Proportion |
|---|---|---|---|---|
| Mark Brown | 725 | 54.27% | 8 | 32.00% |
| Jie Yang | 439 | 32.86% | 4 | 16.00% |
| Takashi Iwai | 139 | 10.40% | 5 | 20.00% |
| Matt Ranostay | 12 | 0.90% | 1 | 4.00% |
| Lu Guanqun | 7 | 0.52% | 1 | 4.00% |
| Tejun Heo | 3 | 0.22% | 1 | 4.00% |
| Kay Sievers | 3 | 0.22% | 1 | 4.00% |
| Paul Gortmaker | 3 | 0.22% | 1 | 4.00% |
| Jani Nikula | 2 | 0.15% | 1 | 4.00% |
| David Henningsson | 2 | 0.15% | 1 | 4.00% |
| Randy Dunlap | 1 | 0.07% | 1 | 4.00% |
| Total | 1336 | 25 |
/* * Jack abstraction layer * * Copyright 2008 Wolfson Microelectronics * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation; either version 2 of the License, or * (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program; if not, write to the Free Software * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA * */ #include <linux/input.h> #include <linux/slab.h> #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 */ }; #ifdef CONFIG_SND_JACK_INPUT_DEV static int jack_switch_types[SND_JACK_SWITCH_TYPES] = { SW_HEADPHONE_INSERT, SW_MICROPHONE_INSERT, SW_LINEOUT_INSERT, SW_JACK_PHYSICAL_INSERT, SW_VIDEOOUT_INSERT, SW_LINEIN_INSERT, }; #endif /* CONFIG_SND_JACK_INPUT_DEV */ static int snd_jack_dev_disconnect(struct snd_device *device) { #ifdef CONFIG_SND_JACK_INPUT_DEV struct snd_jack *jack = device->device_data; if (!jack->input_dev) return 0; /* If the input device is registered with the input subsystem * then we need to use a different deallocator. */ if (jack->registered) input_unregister_device(jack->input_dev); else input_free_device(jack->input_dev); jack->input_dev = NULL; #endif /* CONFIG_SND_JACK_INPUT_DEV */ return 0; } 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); snd_jack_dev_disconnect(device); kfree(jack->id); kfree(jack); return 0; } #ifdef CONFIG_SND_JACK_INPUT_DEV 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, i; snprintf(jack->name, sizeof(jack->name), "%s %s", card->shortname, jack->id); if (!jack->input_dev) return 0; jack->input_dev->name = jack->name; /* Default to the sound card 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; return err; } #endif /* CONFIG_SND_JACK_INPUT_DEV */ 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 * @id: an identifying string for this jack * @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. * * Return: Zero if successful, or a negative error code on failure. * On success @jjack will be initialised. */ int snd_jack_new(struct snd_card *card, const char *id, int type, struct snd_jack **jjack, bool initial_kctl, bool phantom_jack) { struct snd_jack *jack; struct snd_jack_kctl *jack_kctl = NULL; int err; static struct snd_device_ops ops = { .dev_free = snd_jack_dev_free, #ifdef CONFIG_SND_JACK_INPUT_DEV .dev_register = snd_jack_dev_register, .dev_disconnect = snd_jack_dev_disconnect, #endif /* CONFIG_SND_JACK_INPUT_DEV */ }; 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); /* don't creat input device for phantom jack */ if (!phantom_jack) { #ifdef CONFIG_SND_JACK_INPUT_DEV int i; jack->input_dev = input_allocate_device(); if (jack->input_dev == NULL) { err = -ENOMEM; goto fail_input; } jack->input_dev->phys = "ALSA"; 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]); #endif /* CONFIG_SND_JACK_INPUT_DEV */ } 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; fail_input: #ifdef CONFIG_SND_JACK_INPUT_DEV input_free_device(jack->input_dev); #endif kfree(jack->id); kfree(jack); return err; } EXPORT_SYMBOL(snd_jack_new); #ifdef CONFIG_SND_JACK_INPUT_DEV /** * snd_jack_set_parent - Set the parent device for a jack * * @jack: The jack to configure * @parent: The device to set as parent for the jack. * * Set the parent for the jack devices in the device tree. This * function is only valid prior to registration of the jack. If no * parent is configured then the parent device will be the sound card. */ void snd_jack_set_parent(struct snd_jack *jack, struct device *parent) { WARN_ON(jack->registered); if (!jack->input_dev) return; jack->input_dev->dev.parent = 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. * * If jacks are not reporting via the input API this call will have no * effect. * * 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. * * Return: Zero if successful, or a negative error code on failure. */ 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); #endif /* CONFIG_SND_JACK_INPUT_DEV */ /** * snd_jack_report - Report the current status of a jack * * @jack: The jack to report status for * @status: The current status of the jack */ void snd_jack_report(struct snd_jack *jack, int status) { struct snd_jack_kctl *jack_kctl; #ifdef CONFIG_SND_JACK_INPUT_DEV int i; #endif if (!jack) return; list_for_each_entry(jack_kctl, &jack->kctl_list, list) snd_kctl_jack_report(jack->card, jack_kctl->kctl, status & jack_kctl->mask_bits); #ifdef CONFIG_SND_JACK_INPUT_DEV if (!jack->input_dev) return; 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_switch_types[i], status & testbit); } input_sync(jack->input_dev); #endif /* CONFIG_SND_JACK_INPUT_DEV */ } EXPORT_SYMBOL(snd_jack_report);
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