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ctsrc.h
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1 
19 #ifndef CTSRC_H
20 #define CTSRC_H
21 
22 #include "ctresource.h"
23 #include "ctimap.h"
24 #include <linux/spinlock.h>
25 #include <linux/list.h>
26 
27 #define SRC_STATE_OFF 0x0
28 #define SRC_STATE_INIT 0x4
29 #define SRC_STATE_RUN 0x5
30 
31 #define SRC_SF_U8 0x0
32 #define SRC_SF_S16 0x1
33 #define SRC_SF_S24 0x2
34 #define SRC_SF_S32 0x3
35 #define SRC_SF_F32 0x4
36 
37 /* Define the descriptor of a src resource */
38 enum SRCMODE {
39  MEMRD, /* Read data from host memory */
40  MEMWR, /* Write data to host memory */
41  ARCRW, /* Read from and write to audio ring channel */
42  NUM_SRCMODES
43 };
44 
45 struct src_rsc_ops;
46 
47 struct src {
48  struct rsc rsc; /* Basic resource info */
49  struct src *intlv; /* Pointer to next interleaved SRC in a series */
50  struct src_rsc_ops *ops; /* SRC specific operations */
51  /* Number of contiguous srcs for interleaved usage */
52  unsigned char multi;
53  unsigned char mode; /* Working mode of this SRC resource */
54 };
55 
56 struct src_rsc_ops {
57  int (*set_state)(struct src *src, unsigned int state);
58  int (*set_bm)(struct src *src, unsigned int bm);
59  int (*set_sf)(struct src *src, unsigned int sf);
60  int (*set_pm)(struct src *src, unsigned int pm);
61  int (*set_rom)(struct src *src, unsigned int rom);
62  int (*set_vo)(struct src *src, unsigned int vo);
63  int (*set_st)(struct src *src, unsigned int st);
64  int (*set_bp)(struct src *src, unsigned int bp);
65  int (*set_cisz)(struct src *src, unsigned int cisz);
66  int (*set_ca)(struct src *src, unsigned int ca);
67  int (*set_sa)(struct src *src, unsigned int sa);
68  int (*set_la)(struct src *src, unsigned int la);
69  int (*set_pitch)(struct src *src, unsigned int pitch);
70  int (*set_clr_zbufs)(struct src *src);
71  int (*commit_write)(struct src *src);
72  int (*get_ca)(struct src *src);
73  int (*init)(struct src *src);
74  struct src* (*next_interleave)(struct src *src);
75 };
76 
77 /* Define src resource request description info */
78 struct src_desc {
79  /* Number of contiguous master srcs for interleaved usage */
80  unsigned char multi;
81  unsigned char msr;
82  unsigned char mode; /* Working mode of the requested srcs */
83 };
84 
85 /* Define src manager object */
86 struct src_mgr {
87  struct rsc_mgr mgr; /* Basic resource manager info */
88  spinlock_t mgr_lock;
89 
90  /* request src resource */
91  int (*get_src)(struct src_mgr *mgr,
92  const struct src_desc *desc, struct src **rsrc);
93  /* return src resource */
94  int (*put_src)(struct src_mgr *mgr, struct src *src);
95  int (*src_enable_s)(struct src_mgr *mgr, struct src *src);
96  int (*src_enable)(struct src_mgr *mgr, struct src *src);
97  int (*src_disable)(struct src_mgr *mgr, struct src *src);
98  int (*commit_write)(struct src_mgr *mgr);
99 };
100 
101 /* Define the descriptor of a SRC Input Mapper resource */
102 struct srcimp_mgr;
103 struct srcimp_rsc_ops;
104 
105 struct srcimp {
106  struct rsc rsc;
107  unsigned char idx[8];
108  struct imapper *imappers;
109  unsigned int mapped; /* A bit-map indicating which conj rsc is mapped */
110  struct srcimp_mgr *mgr;
111  struct srcimp_rsc_ops *ops;
112 };
113 
114 struct srcimp_rsc_ops {
115  int (*map)(struct srcimp *srcimp, struct src *user, struct rsc *input);
116  int (*unmap)(struct srcimp *srcimp);
117 };
118 
119 /* Define SRCIMP resource request description info */
120 struct srcimp_desc {
121  unsigned int msr;
122 };
123 
124 struct srcimp_mgr {
125  struct rsc_mgr mgr; /* Basic resource manager info */
126  spinlock_t mgr_lock;
127  spinlock_t imap_lock;
128  struct list_head imappers;
129  struct imapper *init_imap;
130  unsigned int init_imap_added;
131 
132  /* request srcimp resource */
133  int (*get_srcimp)(struct srcimp_mgr *mgr,
134  const struct srcimp_desc *desc,
135  struct srcimp **rsrcimp);
136  /* return srcimp resource */
137  int (*put_srcimp)(struct srcimp_mgr *mgr, struct srcimp *srcimp);
138  int (*imap_add)(struct srcimp_mgr *mgr, struct imapper *entry);
139  int (*imap_delete)(struct srcimp_mgr *mgr, struct imapper *entry);
140 };
141 
142 /* Constructor and destructor of SRC resource manager */
143 int src_mgr_create(void *hw, struct src_mgr **rsrc_mgr);
144 int src_mgr_destroy(struct src_mgr *src_mgr);
145 /* Constructor and destructor of SRCIMP resource manager */
146 int srcimp_mgr_create(void *hw, struct srcimp_mgr **rsrc_mgr);
147 int srcimp_mgr_destroy(struct srcimp_mgr *srcimp_mgr);
148 
149 #endif /* CTSRC_H */
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