xref: /openbmc/linux/sound/pci/ctxfi/ctdaio.h (revision b6dcefde)
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