863dbc52e7
Now that the SPDX tag is in all greybus files, that identifies the license in a specific and legally-defined manner. So the extra GPL text wording can be removed as it is no longer needed at all. This is done on a quest to remove the 700+ different ways that files in the kernel describe the GPL license text. And there's unneeded stuff like the address (sometimes incorrect) for the FSF which is never needed. No copyright headers or other non-license-description text was removed. Cc: Vaibhav Hiremath <hvaibhav.linux@gmail.com> Reviewed-by: Alex Elder <elder@linaro.org> Acked-by: Vaibhav Agarwal <vaibhav.sr@gmail.com> Acked-by: David Lin <dtwlin@gmail.com> Acked-by: Johan Hovold <johan@kernel.org> Acked-by: Viresh Kumar <viresh.kumar@linaro.org> Acked-by: Mark Greer <mgreer@animalcreek.com> Acked-by: Rui Miguel Silva <rmfrfs@gmail.com> Acked-by: "Bryan O'Donoghue" <pure.logic@nexus-software.ie> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
82 lines
1.9 KiB
C
82 lines
1.9 KiB
C
// SPDX-License-Identifier: GPL-2.0
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/*
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* Greybus operations
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*
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* Copyright 2015-2016 Google Inc.
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*/
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#ifndef _GB_AUDIO_MANAGER_H_
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#define _GB_AUDIO_MANAGER_H_
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#include <linux/kobject.h>
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#include <linux/list.h>
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#define GB_AUDIO_MANAGER_NAME "gb_audio_manager"
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#define GB_AUDIO_MANAGER_MODULE_NAME_LEN 64
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#define GB_AUDIO_MANAGER_MODULE_NAME_LEN_SSCANF "63"
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struct gb_audio_manager_module_descriptor {
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char name[GB_AUDIO_MANAGER_MODULE_NAME_LEN];
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int vid;
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int pid;
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int intf_id;
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unsigned int ip_devices;
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unsigned int op_devices;
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};
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struct gb_audio_manager_module {
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struct kobject kobj;
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struct list_head list;
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int id;
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struct gb_audio_manager_module_descriptor desc;
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};
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/*
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* Creates a new gb_audio_manager_module_descriptor, using the specified
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* descriptor.
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*
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* Returns a negative result on error, or the id of the newly created module.
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*
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*/
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int gb_audio_manager_add(struct gb_audio_manager_module_descriptor *desc);
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/*
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* Removes a connected gb_audio_manager_module_descriptor for the specified ID.
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*
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* Returns zero on success, or a negative value on error.
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*/
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int gb_audio_manager_remove(int id);
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/*
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* Removes all connected gb_audio_modules
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*
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* Returns zero on success, or a negative value on error.
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*/
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void gb_audio_manager_remove_all(void);
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/*
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* Retrieves a gb_audio_manager_module_descriptor for the specified id.
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* Returns the gb_audio_manager_module_descriptor structure,
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* or NULL if there is no module with the specified ID.
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*/
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struct gb_audio_manager_module *gb_audio_manager_get_module(int id);
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/*
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* Decreases the refcount of the module, obtained by the get function.
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* Modules are removed via gb_audio_manager_remove
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*/
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void gb_audio_manager_put_module(struct gb_audio_manager_module *module);
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/*
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* Dumps the module for the specified id
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* Return 0 on success
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*/
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int gb_audio_manager_dump_module(int id);
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/*
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* Dumps all connected modules
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*/
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void gb_audio_manager_dump_all(void);
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#endif /* _GB_AUDIO_MANAGER_H_ */
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