1 /**
2 * Copyright (C) 2008, Creative Technology Ltd. All Rights Reserved.
3 *
4 * This source file is released under GPL v2 license (no other versions).
5 * See the COPYING file included in the main directory of this source
6 * distribution for the license terms and conditions.
7 *
8 * @File ctdaio.h
9 *
10 * @Brief
11 * This file contains the definition of Digital Audio Input Output
12 * resource management object.
13 *
14 * @Author Liu Chun
15 * @Date May 23 2008
16 *
17 */
18
19 #ifndef CTDAIO_H
20 #define CTDAIO_H
21
22 #include "ctresource.h"
23 #include "ctimap.h"
24 #include <linux/spinlock.h>
25 #include <linux/list.h>
26
27 /* Define the descriptor of a daio resource */
28 enum DAIOTYP {
29 LINEO1,
30 LINEO2,
31 LINEO3,
32 LINEO4,
33 SPDIFOO, /* S/PDIF Out (Flexijack/Optical) */
34 LINEIM,
35 SPDIFIO, /* S/PDIF In (Flexijack/Optical) on the card */
36 SPDIFI1, /* S/PDIF In on internal Drive Bay */
37 NUM_DAIOTYP
38 };
39
40 struct dao_rsc_ops;
41 struct dai_rsc_ops;
42 struct daio_mgr;
43
44 struct daio {
45 struct rsc rscl; /* Basic resource info for left TX/RX */
46 struct rsc rscr; /* Basic resource info for right TX/RX */
47 enum DAIOTYP type;
48 };
49
50 struct dao {
51 struct daio daio;
52 struct dao_rsc_ops *ops; /* DAO specific operations */
53 struct imapper **imappers;
54 struct daio_mgr *mgr;
55 void *hw;
56 void *ctrl_blk;
57 };
58
59 struct dai {
60 struct daio daio;
61 struct dai_rsc_ops *ops; /* DAI specific operations */
62 void *hw;
63 void *ctrl_blk;
64 };
65
66 struct dao_desc {
67 unsigned int msr:4;
68 unsigned int passthru:1;
69 };
70
71 struct dao_rsc_ops {
72 int (*set_spos)(struct dao *dao, unsigned int spos);
73 int (*commit_write)(struct dao *dao);
74 int (*get_spos)(struct dao *dao, unsigned int *spos);
75 int (*reinit)(struct dao *dao, const struct dao_desc *desc);
76 int (*set_left_input)(struct dao *dao, struct rsc *input);
77 int (*set_right_input)(struct dao *dao, struct rsc *input);
78 int (*clear_left_input)(struct dao *dao);
79 int (*clear_right_input)(struct dao *dao);
80 };
81
82 struct dai_rsc_ops {
83 int (*set_srt_srcl)(struct dai *dai, struct rsc *src);
84 int (*set_srt_srcr)(struct dai *dai, struct rsc *src);
85 int (*set_srt_msr)(struct dai *dai, unsigned int msr);
86 int (*set_enb_src)(struct dai *dai, unsigned int enb);
87 int (*set_enb_srt)(struct dai *dai, unsigned int enb);
88 int (*commit_write)(struct dai *dai);
89 };
90
91 /* Define daio resource request description info */
92 struct daio_desc {
93 unsigned int type:4;
94 unsigned int msr:4;
95 unsigned int passthru:1;
96 };
97
98 struct daio_mgr {
99 struct rsc_mgr mgr; /* Basic resource manager info */
100 spinlock_t mgr_lock;
101 spinlock_t imap_lock;
102 struct list_head imappers;
103 struct imapper *init_imap;
104 unsigned int init_imap_added;
105
106 /* request one daio resource */
107 int (*get_daio)(struct daio_mgr *mgr,
108 const struct daio_desc *desc, struct daio **rdaio);
109 /* return one daio resource */
110 int (*put_daio)(struct daio_mgr *mgr, struct daio *daio);
111 int (*daio_enable)(struct daio_mgr *mgr, struct daio *daio);
112 int (*daio_disable)(struct daio_mgr *mgr, struct daio *daio);
113 int (*imap_add)(struct daio_mgr *mgr, struct imapper *entry);
114 int (*imap_delete)(struct daio_mgr *mgr, struct imapper *entry);
115 int (*commit_write)(struct daio_mgr *mgr);
116 };
117
118 /* Constructor and destructor of daio resource manager */
119 int daio_mgr_create(void *hw, struct daio_mgr **rdaio_mgr);
120 int daio_mgr_destroy(struct daio_mgr *daio_mgr);
121
122 #endif /* CTDAIO_H */
123
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