summaryrefslogtreecommitdiffstats
path: root/sound/pci/ctxfi/ctsrc.h
blob: 259366aabcaca35db91fa5ff2bf978045fb35908 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
/**
 * Copyright (C) 2008, Creative Technology Ltd. All Rights Reserved.
 *
 * This source file is released under GPL v2 license (no other versions).
 * See the COPYING file included in the main directory of this source
 * distribution for the license terms and conditions.
 *
 * @File	ctsrc.h
 *
 * @Brief
 * This file contains the definition of the Sample Rate Convertor
 * resource management object.
 *
 * @Author	Liu Chun
 * @Date 	May 13 2008
 *
 */

#ifndef CTSRC_H
#define CTSRC_H

#include "ctresource.h"
#include "ctimap.h"
#include <linux/spinlock.h>
#include <linux/list.h>

#define SRC_STATE_OFF	0x0
#define SRC_STATE_INIT	0x4
#define SRC_STATE_RUN	0x5

#define SRC_SF_U8	0x0
#define SRC_SF_S16	0x1
#define SRC_SF_S24	0x2
#define SRC_SF_S32	0x3
#define SRC_SF_F32	0x4

/* Define the descriptor of a src resource */
enum SRCMODE {
	MEMRD,		/* Read data from host memory */
	MEMWR,		/* Write data to host memory */
	ARCRW,		/* Read from and write to audio ring channel */
	NUM_SRCMODES
};

struct src_rsc_ops;

struct src {
	struct rsc rsc; /* Basic resource info */
	struct src *intlv; /* Pointer to next interleaved SRC in a series */
	struct src_rsc_ops *ops; /* SRC specific operations */
	/* Number of contiguous srcs for interleaved usage */
	unsigned char multi;
	unsigned char mode; /* Working mode of this SRC resource */
};

struct src_rsc_ops {
	int (*set_state)(struct src *src, unsigned int state);
	int (*set_bm)(struct src *src, unsigned int bm);
	int (*set_sf)(struct src *src, unsigned int sf);
	int (*set_pm)(struct src *src, unsigned int pm);
	int (*set_rom)(struct src *src, unsigned int rom);
	int (*set_vo)(struct src *src, unsigned int vo);
	int (*set_st)(struct src *src, unsigned int st);
	int (*set_bp)(struct src *src, unsigned int bp);
	int (*set_cisz)(struct src *src, unsigned int cisz);
	int (*set_ca)(struct src *src, unsigned int ca);
	int (*set_sa)(struct src *src, unsigned int sa);
	int (*set_la)(struct src *src, unsigned int la);
	int (*set_pitch)(struct src *src, unsigned int pitch);
	int (*set_clr_zbufs)(struct src *src);
	int (*commit_write)(struct src *src);
	int (*get_ca)(struct src *src);
	int (*init)(struct src *src);
	struct src* (*next_interleave)(struct src *src);
};

/* Define src resource request description info */
struct src_desc {
	/* Number of contiguous master srcs for interleaved usage */
	unsigned char multi;
	unsigned char msr;
	unsigned char mode; /* Working mode of the requested srcs */
};

/* Define src manager object */
struct src_mgr {
	struct rsc_mgr mgr;	/* Basic resource manager info */
	spinlock_t mgr_lock;

	 /* request src resource */
	int (*get_src)(struct src_mgr *mgr,
		       const struct src_desc *desc, struct src **rsrc);
	/* return src resource */
	int (*put_src)(struct src_mgr *mgr, struct src *src);
	int (*src_enable_s)(struct src_mgr *mgr, struct src *src);
	int (*src_enable)(struct src_mgr *mgr, struct src *src);
	int (*src_disable)(struct src_mgr *mgr, struct src *src);
	int (*commit_write)(struct src_mgr *mgr);
};

/* Define the descriptor of a SRC Input Mapper resource */
struct srcimp_mgr;
struct srcimp_rsc_ops;

struct srcimp {
	struct rsc rsc;
	unsigned char idx[8];
	struct imapper *imappers;
	unsigned int mapped; /* A bit-map indicating which conj rsc is mapped */
	struct srcimp_mgr *mgr;
	struct srcimp_rsc_ops *ops;
};

struct srcimp_rsc_ops {
	int (*map)(struct srcimp *srcimp, struct src *user, struct rsc *input);
	int (*unmap)(struct srcimp *srcimp);
};

/* Define SRCIMP resource request description info */
struct srcimp_desc {
	unsigned int msr;
};

struct srcimp_mgr {
	struct rsc_mgr mgr;	/* Basic resource manager info */
	spinlock_t mgr_lock;
	spinlock_t imap_lock;
	struct list_head imappers;
	struct imapper *init_imap;
	unsigned int init_imap_added;

	 /* request srcimp resource */
	int (*get_srcimp)(struct srcimp_mgr *mgr,
			  const struct srcimp_desc *desc,
			  struct srcimp **rsrcimp);
	/* return srcimp resource */
	int (*put_srcimp)(struct srcimp_mgr *mgr, struct srcimp *srcimp);
	int (*imap_add)(struct srcimp_mgr *mgr, struct imapper *entry);
	int (*imap_delete)(struct srcimp_mgr *mgr, struct imapper *entry);
};

/* Constructor and destructor of SRC resource manager */
int src_mgr_create(void *hw, struct src_mgr **rsrc_mgr);
int src_mgr_destroy(struct src_mgr *src_mgr);
/* Constructor and destructor of SRCIMP resource manager */
int srcimp_mgr_create(void *hw, struct srcimp_mgr **rsrc_mgr);
int srcimp_mgr_destroy(struct srcimp_mgr *srcimp_mgr);

#endif /* CTSRC_H */
OpenPOWER on IntegriCloud