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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 18:49:45 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 18:49:45 +0000 |
commit | 2c3c1048746a4622d8c89a29670120dc8fab93c4 (patch) | |
tree | 848558de17fb3008cdf4d861b01ac7781903ce39 /drivers/staging/greybus/audio_manager.h | |
parent | Initial commit. (diff) | |
download | linux-2c3c1048746a4622d8c89a29670120dc8fab93c4.tar.xz linux-2c3c1048746a4622d8c89a29670120dc8fab93c4.zip |
Adding upstream version 6.1.76.upstream/6.1.76upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'drivers/staging/greybus/audio_manager.h')
-rw-r--r-- | drivers/staging/greybus/audio_manager.h | 81 |
1 files changed, 81 insertions, 0 deletions
diff --git a/drivers/staging/greybus/audio_manager.h b/drivers/staging/greybus/audio_manager.h new file mode 100644 index 000000000..be605485a --- /dev/null +++ b/drivers/staging/greybus/audio_manager.h @@ -0,0 +1,81 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +/* + * Greybus operations + * + * Copyright 2015-2016 Google Inc. + */ + +#ifndef _GB_AUDIO_MANAGER_H_ +#define _GB_AUDIO_MANAGER_H_ + +#include <linux/kobject.h> +#include <linux/list.h> + +#define GB_AUDIO_MANAGER_NAME "gb_audio_manager" +#define GB_AUDIO_MANAGER_MODULE_NAME_LEN 64 +#define GB_AUDIO_MANAGER_MODULE_NAME_LEN_SSCANF "63" + +struct gb_audio_manager_module_descriptor { + char name[GB_AUDIO_MANAGER_MODULE_NAME_LEN]; + int vid; + int pid; + int intf_id; + unsigned int ip_devices; + unsigned int op_devices; +}; + +struct gb_audio_manager_module { + struct kobject kobj; + struct list_head list; + int id; + struct gb_audio_manager_module_descriptor desc; +}; + +/* + * Creates a new gb_audio_manager_module_descriptor, using the specified + * descriptor. + * + * Returns a negative result on error, or the id of the newly created module. + * + */ +int gb_audio_manager_add(struct gb_audio_manager_module_descriptor *desc); + +/* + * Removes a connected gb_audio_manager_module_descriptor for the specified ID. + * + * Returns zero on success, or a negative value on error. + */ +int gb_audio_manager_remove(int id); + +/* + * Removes all connected gb_audio_modules + * + * Returns zero on success, or a negative value on error. + */ +void gb_audio_manager_remove_all(void); + +/* + * Retrieves a gb_audio_manager_module_descriptor for the specified id. + * Returns the gb_audio_manager_module_descriptor structure, + * or NULL if there is no module with the specified ID. + */ +struct gb_audio_manager_module *gb_audio_manager_get_module(int id); + +/* + * Decreases the refcount of the module, obtained by the get function. + * Modules are removed via gb_audio_manager_remove + */ +void gb_audio_manager_put_module(struct gb_audio_manager_module *module); + +/* + * Dumps the module for the specified id + * Return 0 on success + */ +int gb_audio_manager_dump_module(int id); + +/* + * Dumps all connected modules + */ +void gb_audio_manager_dump_all(void); + +#endif /* _GB_AUDIO_MANAGER_H_ */ |