1 /* SPDX-License-Identifier: GPL-2.0-only */
3 * Copyright (C) 2008, Creative Technology Ltd. All Rights Reserved.
8 * This file contains the definition of the Audio Mixer
9 * resource management object.
18 #include "ctresource.h"
19 #include <linux/spinlock.h>
20 #include <sound/core.h>
22 /* Define the descriptor of a summation node resource */
24 struct rsc rsc; /* Basic resource info */
28 /* Define sum resource request description info */
34 struct rsc_mgr mgr; /* Basic resource manager info */
35 struct snd_card *card; /* pointer to this card */
38 /* request one sum resource */
39 int (*get_sum)(struct sum_mgr *mgr,
40 const struct sum_desc *desc, struct sum **rsum);
41 /* return one sum resource */
42 int (*put_sum)(struct sum_mgr *mgr, struct sum *sum);
45 /* Constructor and destructor of daio resource manager */
46 int sum_mgr_create(struct hw *hw, struct sum_mgr **rsum_mgr);
47 int sum_mgr_destroy(struct sum_mgr *sum_mgr);
49 /* Define the descriptor of a amixer resource */
50 struct amixer_rsc_ops;
53 struct rsc rsc; /* Basic resource info */
55 struct rsc *input; /* pointer to a resource acting as source */
56 struct sum *sum; /* Put amixer output to this summation node */
57 const struct amixer_rsc_ops *ops; /* AMixer specific operations */
60 struct amixer_rsc_ops {
61 int (*set_input)(struct amixer *amixer, struct rsc *rsc);
62 int (*set_scale)(struct amixer *amixer, unsigned int scale);
63 int (*set_invalid_squash)(struct amixer *amixer, unsigned int iv);
64 int (*set_sum)(struct amixer *amixer, struct sum *sum);
65 int (*commit_write)(struct amixer *amixer);
66 /* Only for interleaved recording */
67 int (*commit_raw_write)(struct amixer *amixer);
68 int (*setup)(struct amixer *amixer, struct rsc *input,
69 unsigned int scale, struct sum *sum);
70 int (*get_scale)(struct amixer *amixer);
73 /* Define amixer resource request description info */
79 struct rsc_mgr mgr; /* Basic resource manager info */
80 struct snd_card *card; /* pointer to this card */
83 /* request one amixer resource */
84 int (*get_amixer)(struct amixer_mgr *mgr,
85 const struct amixer_desc *desc,
86 struct amixer **ramixer);
87 /* return one amixer resource */
88 int (*put_amixer)(struct amixer_mgr *mgr, struct amixer *amixer);
91 /* Constructor and destructor of amixer resource manager */
92 int amixer_mgr_create(struct hw *hw, struct amixer_mgr **ramixer_mgr);
93 int amixer_mgr_destroy(struct amixer_mgr *amixer_mgr);
95 #endif /* CTAMIXER_H */