LXR linux/sound/pci/ctxfi/ctsrc.h

   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 */
  35enum 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
  42struct src_rsc_ops;
  43
  44struct 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
  53struct 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 */
  75struct 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 */
  83struct 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 */
 100struct srcimp_mgr;
 101struct srcimp_rsc_ops;
 102
 103struct 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
 112struct 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 */
 118struct srcimp_desc {
 119        unsigned int msr;
 120};
 121
 122struct 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 */
 142int src_mgr_create(struct hw *hw, struct src_mgr **rsrc_mgr);
 143int src_mgr_destroy(struct src_mgr *src_mgr);
 144/* Constructor and destructor of SRCIMP resource manager */
 145int srcimp_mgr_create(struct hw *hw, struct srcimp_mgr **rsrc_mgr);
 146int srcimp_mgr_destroy(struct srcimp_mgr *srcimp_mgr);
 147
 148#endif /* CTSRC_H */
 149