root/sound/pci/ctxfi/ctsrc.h

INCLUDED FROM

   1 /* SPDX-License-Identifier: GPL-2.0-only */
   2 /**
   3  * Copyright (C) 2008, Creative Technology Ltd. All Rights Reserved.
   4  *
   5  * @File        ctsrc.h
   6  *
   7  * @Brief
   8  * This file contains the definition of the Sample Rate Convertor
   9  * resource management object.
  10  *
  11  * @Author      Liu Chun
  12  * @Date        May 13 2008
  13  */
  14 
  15 #ifndef CTSRC_H
  16 #define CTSRC_H
  17 
  18 #include "ctresource.h"
  19 #include "ctimap.h"
  20 #include <linux/spinlock.h>
  21 #include <linux/list.h>
  22 #include <sound/core.h>
  23 
  24 #define SRC_STATE_OFF   0x0
  25 #define SRC_STATE_INIT  0x4
  26 #define SRC_STATE_RUN   0x5
  27 
  28 #define SRC_SF_U8       0x0
  29 #define SRC_SF_S16      0x1
  30 #define SRC_SF_S24      0x2
  31 #define SRC_SF_S32      0x3
  32 #define SRC_SF_F32      0x4
  33 
  34 /* Define the descriptor of a src resource */
  35 enum SRCMODE {
  36         MEMRD,          /* Read data from host memory */
  37         MEMWR,          /* Write data to host memory */
  38         ARCRW,          /* Read from and write to audio ring channel */
  39         NUM_SRCMODES
  40 };
  41 
  42 struct src_rsc_ops;
  43 
  44 struct src {
  45         struct rsc rsc; /* Basic resource info */
  46         struct src *intlv; /* Pointer to next interleaved SRC in a series */
  47         const struct src_rsc_ops *ops; /* SRC specific operations */
  48         /* Number of contiguous srcs for interleaved usage */
  49         unsigned char multi;
  50         unsigned char mode; /* Working mode of this SRC resource */
  51 };
  52 
  53 struct src_rsc_ops {
  54         int (*set_state)(struct src *src, unsigned int state);
  55         int (*set_bm)(struct src *src, unsigned int bm);
  56         int (*set_sf)(struct src *src, unsigned int sf);
  57         int (*set_pm)(struct src *src, unsigned int pm);
  58         int (*set_rom)(struct src *src, unsigned int rom);
  59         int (*set_vo)(struct src *src, unsigned int vo);
  60         int (*set_st)(struct src *src, unsigned int st);
  61         int (*set_bp)(struct src *src, unsigned int bp);
  62         int (*set_cisz)(struct src *src, unsigned int cisz);
  63         int (*set_ca)(struct src *src, unsigned int ca);
  64         int (*set_sa)(struct src *src, unsigned int sa);
  65         int (*set_la)(struct src *src, unsigned int la);
  66         int (*set_pitch)(struct src *src, unsigned int pitch);
  67         int (*set_clr_zbufs)(struct src *src);
  68         int (*commit_write)(struct src *src);
  69         int (*get_ca)(struct src *src);
  70         int (*init)(struct src *src);
  71         struct src* (*next_interleave)(struct src *src);
  72 };
  73 
  74 /* Define src resource request description info */
  75 struct src_desc {
  76         /* Number of contiguous master srcs for interleaved usage */
  77         unsigned char multi;
  78         unsigned char msr;
  79         unsigned char mode; /* Working mode of the requested srcs */
  80 };
  81 
  82 /* Define src manager object */
  83 struct src_mgr {
  84         struct rsc_mgr mgr;     /* Basic resource manager info */
  85         struct snd_card *card;  /* pointer to this card */
  86         spinlock_t mgr_lock;
  87 
  88          /* request src resource */
  89         int (*get_src)(struct src_mgr *mgr,
  90                        const struct src_desc *desc, struct src **rsrc);
  91         /* return src resource */
  92         int (*put_src)(struct src_mgr *mgr, struct src *src);
  93         int (*src_enable_s)(struct src_mgr *mgr, struct src *src);
  94         int (*src_enable)(struct src_mgr *mgr, struct src *src);
  95         int (*src_disable)(struct src_mgr *mgr, struct src *src);
  96         int (*commit_write)(struct src_mgr *mgr);
  97 };
  98 
  99 /* Define the descriptor of a SRC Input Mapper resource */
 100 struct srcimp_mgr;
 101 struct srcimp_rsc_ops;
 102 
 103 struct srcimp {
 104         struct rsc rsc;
 105         unsigned char idx[8];
 106         struct imapper *imappers;
 107         unsigned int mapped; /* A bit-map indicating which conj rsc is mapped */
 108         struct srcimp_mgr *mgr;
 109         const struct srcimp_rsc_ops *ops;
 110 };
 111 
 112 struct srcimp_rsc_ops {
 113         int (*map)(struct srcimp *srcimp, struct src *user, struct rsc *input);
 114         int (*unmap)(struct srcimp *srcimp);
 115 };
 116 
 117 /* Define SRCIMP resource request description info */
 118 struct srcimp_desc {
 119         unsigned int msr;
 120 };
 121 
 122 struct srcimp_mgr {
 123         struct rsc_mgr mgr;     /* Basic resource manager info */
 124         struct snd_card *card;  /* pointer to this card */
 125         spinlock_t mgr_lock;
 126         spinlock_t imap_lock;
 127         struct list_head imappers;
 128         struct imapper *init_imap;
 129         unsigned int init_imap_added;
 130 
 131          /* request srcimp resource */
 132         int (*get_srcimp)(struct srcimp_mgr *mgr,
 133                           const struct srcimp_desc *desc,
 134                           struct srcimp **rsrcimp);
 135         /* return srcimp resource */
 136         int (*put_srcimp)(struct srcimp_mgr *mgr, struct srcimp *srcimp);
 137         int (*imap_add)(struct srcimp_mgr *mgr, struct imapper *entry);
 138         int (*imap_delete)(struct srcimp_mgr *mgr, struct imapper *entry);
 139 };
 140 
 141 /* Constructor and destructor of SRC resource manager */
 142 int src_mgr_create(struct hw *hw, struct src_mgr **rsrc_mgr);
 143 int src_mgr_destroy(struct src_mgr *src_mgr);
 144 /* Constructor and destructor of SRCIMP resource manager */
 145 int srcimp_mgr_create(struct hw *hw, struct srcimp_mgr **rsrc_mgr);
 146 int srcimp_mgr_destroy(struct srcimp_mgr *srcimp_mgr);
 147 
 148 #endif /* CTSRC_H */