1 /* SPDX-License-Identifier: GPL-2.0-only */ 1
2 /*
3 * Copyright (C) 2008, Creative Technology Ltd
4 *
5 * @File ctresource.h
6 *
7 * @Brief
8 * This file contains the definition of generi
9 * resource management.
10 *
11 * @Author Liu Chun
12 * @Date May 13 2008
13 */
14
15 #ifndef CTRESOURCE_H
16 #define CTRESOURCE_H
17
18 #include <linux/types.h>
19
20 enum RSCTYP {
21 SRC,
22 SRCIMP,
23 AMIXER,
24 SUM,
25 DAIO,
26 NUM_RSCTYP /* This must be the la
27 };
28
29 struct rsc_ops;
30
31 struct rsc {
32 u32 idx:12; /* The index of a reso
33 u32 type:4; /* The type (RSCTYP) o
34 u32 conj:12; /* Current conjugate i
35 u32 msr:4; /* The Master Sample R
36 void *ctrl_blk; /* Chip specific contr
37 struct hw *hw; /* Chip specific objec
38 const struct rsc_ops *ops; /* Gen
39 };
40
41 struct rsc_ops {
42 void (*master)(struct rsc *rsc); /* Mo
43 void (*next_conj)(struct rsc *rsc); /*
44 int (*index)(const struct rsc *rsc); /
45 /* Return the output slot number */
46 int (*output_slot)(const struct rsc *r
47 };
48
49 int
50 rsc_init(struct rsc *rsc, u32 idx, enum RSCTYP
51 int rsc_uninit(struct rsc *rsc);
52
53 struct rsc_mgr {
54 enum RSCTYP type; /* The type (RSCTYP)
55 unsigned int amount; /* The total amou
56 unsigned int avail; /* The amount of c
57 unsigned char *rscs; /* The bit-map fo
58 void *ctrl_blk; /* Chip specific contr
59 struct hw *hw; /* Chip specific object
60 };
61
62 /* Resource management is based on bit-map mec
63 int rsc_mgr_init(struct rsc_mgr *mgr, enum RSC
64 unsigned int amount, struct h
65 int rsc_mgr_uninit(struct rsc_mgr *mgr);
66 int mgr_get_resource(struct rsc_mgr *mgr, unsi
67 int mgr_put_resource(struct rsc_mgr *mgr, unsi
68
69 #endif /* CTRESOURCE_H */
70
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