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#include <sound/core.h>
27
28/* Define the descriptor of a daio resource */
29enum DAIOTYP {
30	LINEO1,
31	LINEO2,
32	LINEO3,
33	LINEO4,
34	SPDIFOO,	/* S/PDIF Out (Flexijack/Optical) */
35	LINEIM,
36	SPDIFIO,	/* S/PDIF In (Flexijack/Optical) on the card */
37	MIC,		/* Dedicated mic on Titanium HD */
38	SPDIFI1,	/* S/PDIF In on internal Drive Bay */
39	NUM_DAIOTYP
40};
41
42struct dao_rsc_ops;
43struct dai_rsc_ops;
44struct daio_mgr;
45
46struct daio {
47	struct rsc rscl;	/* Basic resource info for left TX/RX */
48	struct rsc rscr;	/* Basic resource info for right TX/RX */
49	enum DAIOTYP type;
50};
51
52struct dao {
53	struct daio daio;
54	struct dao_rsc_ops *ops;	/* DAO specific operations */
55	struct imapper **imappers;
56	struct daio_mgr *mgr;
57	struct hw *hw;
58	void *ctrl_blk;
59};
60
61struct dai {
62	struct daio daio;
63	struct dai_rsc_ops *ops;	/* DAI specific operations */
64	struct hw *hw;
65	void *ctrl_blk;
66};
67
68struct dao_desc {
69	unsigned int msr:4;
70	unsigned int passthru:1;
71};
72
73struct dao_rsc_ops {
74	int (*set_spos)(struct dao *dao, unsigned int spos);
75	int (*commit_write)(struct dao *dao);
76	int (*get_spos)(struct dao *dao, unsigned int *spos);
77	int (*reinit)(struct dao *dao, const struct dao_desc *desc);
78	int (*set_left_input)(struct dao *dao, struct rsc *input);
79	int (*set_right_input)(struct dao *dao, struct rsc *input);
80	int (*clear_left_input)(struct dao *dao);
81	int (*clear_right_input)(struct dao *dao);
82};
83
84struct dai_rsc_ops {
85	int (*set_srt_srcl)(struct dai *dai, struct rsc *src);
86	int (*set_srt_srcr)(struct dai *dai, struct rsc *src);
87	int (*set_srt_msr)(struct dai *dai, unsigned int msr);
88	int (*set_enb_src)(struct dai *dai, unsigned int enb);
89	int (*set_enb_srt)(struct dai *dai, unsigned int enb);
90	int (*commit_write)(struct dai *dai);
91};
92
93/* Define daio resource request description info */
94struct daio_desc {
95	unsigned int type:4;
96	unsigned int msr:4;
97	unsigned int passthru:1;
98};
99
100struct daio_mgr {
101	struct rsc_mgr mgr;	/* Basic resource manager info */
102	struct snd_card *card;	/* pointer to this card */
103	spinlock_t mgr_lock;
104	spinlock_t imap_lock;
105	struct list_head imappers;
106	struct imapper *init_imap;
107	unsigned int init_imap_added;
108
109	 /* request one daio resource */
110	int (*get_daio)(struct daio_mgr *mgr,
111			const struct daio_desc *desc, struct daio **rdaio);
112	/* return one daio resource */
113	int (*put_daio)(struct daio_mgr *mgr, struct daio *daio);
114	int (*daio_enable)(struct daio_mgr *mgr, struct daio *daio);
115	int (*daio_disable)(struct daio_mgr *mgr, struct daio *daio);
116	int (*imap_add)(struct daio_mgr *mgr, struct imapper *entry);
117	int (*imap_delete)(struct daio_mgr *mgr, struct imapper *entry);
118	int (*commit_write)(struct daio_mgr *mgr);
119};
120
121/* Constructor and destructor of daio resource manager */
122int daio_mgr_create(struct hw *hw, struct daio_mgr **rdaio_mgr);
123int daio_mgr_destroy(struct daio_mgr *daio_mgr);
124
125#endif /* CTDAIO_H */
126