sound/pci/ctxfi/ctimap.h

   1 /* SPDX-License-Identifier: GPL-2.0-only */
   2 /**
   3  * Copyright (C) 2008, Creative Technology Ltd. All Rights Reserved.
   4  *
   5  * @File        ctimap.h
   6  *
   7  * @Brief
   8  * This file contains the definition of generic input mapper operations
   9  * for input mapper management.
  10  *
  11  * @Author      Liu Chun
  12  * @Date        May 23 2008
  13  */
  14
  15 #ifndef CTIMAP_H
  16 #define CTIMAP_H
  17
  18 #include <linux/list.h>
  19
  20 struct imapper {
  21         unsigned short slot; /* the id of the slot containing input data */
  22         unsigned short user; /* the id of the user resource consuming data */
  23         unsigned short addr; /* the input mapper ram id */
  24         unsigned short next; /* the next input mapper ram id */
  25         struct list_head        list;
  26 };
  27
  28 int input_mapper_add(struct list_head *mappers, struct imapper *entry,
  29                      int (*map_op)(void *, struct imapper *), void *data);
  30
  31 int input_mapper_delete(struct list_head *mappers, struct imapper *entry,
  32                      int (*map_op)(void *, struct imapper *), void *data);
  33
  34 void free_input_mapper_list(struct list_head *mappers);
  35
  36 #endif /* CTIMAP_H */