cachepc-linux

Fork of AMDESE/linux with modifications for CachePC side-channel attack
git clone https://git.sinitax.com/sinitax/cachepc-linux
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audio_manager.h (1973B)

      1/* SPDX-License-Identifier: GPL-2.0 */
      2/*
      3 * Greybus operations
      4 *
      5 * Copyright 2015-2016 Google Inc.
      6 */
      7
      8#ifndef _GB_AUDIO_MANAGER_H_
      9#define _GB_AUDIO_MANAGER_H_
     10
     11#include <linux/kobject.h>
     12#include <linux/list.h>
     13
     14#define GB_AUDIO_MANAGER_NAME "gb_audio_manager"
     15#define GB_AUDIO_MANAGER_MODULE_NAME_LEN 64
     16#define GB_AUDIO_MANAGER_MODULE_NAME_LEN_SSCANF "63"
     17
     18struct gb_audio_manager_module_descriptor {
     19	char name[GB_AUDIO_MANAGER_MODULE_NAME_LEN];
     20	int vid;
     21	int pid;
     22	int intf_id;
     23	unsigned int ip_devices;
     24	unsigned int op_devices;
     25};
     26
     27struct gb_audio_manager_module {
     28	struct kobject kobj;
     29	struct list_head list;
     30	int id;
     31	struct gb_audio_manager_module_descriptor desc;
     32};
     33
     34/*
     35 * Creates a new gb_audio_manager_module_descriptor, using the specified
     36 * descriptor.
     37 *
     38 * Returns a negative result on error, or the id of the newly created module.
     39 *
     40 */
     41int gb_audio_manager_add(struct gb_audio_manager_module_descriptor *desc);
     42
     43/*
     44 * Removes a connected gb_audio_manager_module_descriptor for the specified ID.
     45 *
     46 * Returns zero on success, or a negative value on error.
     47 */
     48int gb_audio_manager_remove(int id);
     49
     50/*
     51 * Removes all connected gb_audio_modules
     52 *
     53 * Returns zero on success, or a negative value on error.
     54 */
     55void gb_audio_manager_remove_all(void);
     56
     57/*
     58 * Retrieves a gb_audio_manager_module_descriptor for the specified id.
     59 * Returns the gb_audio_manager_module_descriptor structure,
     60 * or NULL if there is no module with the specified ID.
     61 */
     62struct gb_audio_manager_module *gb_audio_manager_get_module(int id);
     63
     64/*
     65 * Decreases the refcount of the module, obtained by the get function.
     66 * Modules are removed via gb_audio_manager_remove
     67 */
     68void gb_audio_manager_put_module(struct gb_audio_manager_module *module);
     69
     70/*
     71 * Dumps the module for the specified id
     72 * Return 0 on success
     73 */
     74int gb_audio_manager_dump_module(int id);
     75
     76/*
     77 * Dumps all connected modules
     78 */
     79void gb_audio_manager_dump_all(void);
     80
     81#endif /* _GB_AUDIO_MANAGER_H_ */