149 lines
4.4 KiB
C
149 lines
4.4 KiB
C
/* SPDX-License-Identifier: GPL-2.0-only */
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/*
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* Copyright (C) 2008, Creative Technology Ltd. All Rights Reserved.
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*
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* @File ctsrc.h
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*
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* @Brief
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* This file contains the definition of the Sample Rate Convertor
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* resource management object.
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*
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* @Author Liu Chun
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* @Date May 13 2008
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*/
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#ifndef CTSRC_H
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#define CTSRC_H
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#include "ctresource.h"
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#include "ctimap.h"
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#include <linux/spinlock.h>
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#include <linux/list.h>
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#include <sound/core.h>
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#define SRC_STATE_OFF 0x0
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#define SRC_STATE_INIT 0x4
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#define SRC_STATE_RUN 0x5
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#define SRC_SF_U8 0x0
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#define SRC_SF_S16 0x1
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#define SRC_SF_S24 0x2
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#define SRC_SF_S32 0x3
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#define SRC_SF_F32 0x4
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/* Define the descriptor of a src resource */
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enum SRCMODE {
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MEMRD, /* Read data from host memory */
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MEMWR, /* Write data to host memory */
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ARCRW, /* Read from and write to audio ring channel */
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NUM_SRCMODES
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};
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struct src_rsc_ops;
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struct src {
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struct rsc rsc; /* Basic resource info */
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struct src *intlv; /* Pointer to next interleaved SRC in a series */
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const struct src_rsc_ops *ops; /* SRC specific operations */
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/* Number of contiguous srcs for interleaved usage */
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unsigned char multi;
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unsigned char mode; /* Working mode of this SRC resource */
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};
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struct src_rsc_ops {
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int (*set_state)(struct src *src, unsigned int state);
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int (*set_bm)(struct src *src, unsigned int bm);
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int (*set_sf)(struct src *src, unsigned int sf);
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int (*set_pm)(struct src *src, unsigned int pm);
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int (*set_rom)(struct src *src, unsigned int rom);
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int (*set_vo)(struct src *src, unsigned int vo);
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int (*set_st)(struct src *src, unsigned int st);
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int (*set_bp)(struct src *src, unsigned int bp);
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int (*set_cisz)(struct src *src, unsigned int cisz);
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int (*set_ca)(struct src *src, unsigned int ca);
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int (*set_sa)(struct src *src, unsigned int sa);
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int (*set_la)(struct src *src, unsigned int la);
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int (*set_pitch)(struct src *src, unsigned int pitch);
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int (*set_clr_zbufs)(struct src *src);
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int (*commit_write)(struct src *src);
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int (*get_ca)(struct src *src);
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int (*init)(struct src *src);
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struct src* (*next_interleave)(struct src *src);
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};
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/* Define src resource request description info */
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struct src_desc {
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/* Number of contiguous master srcs for interleaved usage */
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unsigned char multi;
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unsigned char msr;
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unsigned char mode; /* Working mode of the requested srcs */
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};
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/* Define src manager object */
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struct src_mgr {
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struct rsc_mgr mgr; /* Basic resource manager info */
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struct snd_card *card; /* pointer to this card */
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spinlock_t mgr_lock;
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/* request src resource */
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int (*get_src)(struct src_mgr *mgr,
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const struct src_desc *desc, struct src **rsrc);
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/* return src resource */
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int (*put_src)(struct src_mgr *mgr, struct src *src);
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int (*src_enable_s)(struct src_mgr *mgr, struct src *src);
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int (*src_enable)(struct src_mgr *mgr, struct src *src);
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int (*src_disable)(struct src_mgr *mgr, struct src *src);
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int (*commit_write)(struct src_mgr *mgr);
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};
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/* Define the descriptor of a SRC Input Mapper resource */
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struct srcimp_mgr;
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struct srcimp_rsc_ops;
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struct srcimp {
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struct rsc rsc;
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unsigned char idx[8];
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struct imapper *imappers;
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unsigned int mapped; /* A bit-map indicating which conj rsc is mapped */
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struct srcimp_mgr *mgr;
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const struct srcimp_rsc_ops *ops;
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};
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struct srcimp_rsc_ops {
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int (*map)(struct srcimp *srcimp, struct src *user, struct rsc *input);
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int (*unmap)(struct srcimp *srcimp);
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};
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/* Define SRCIMP resource request description info */
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struct srcimp_desc {
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unsigned int msr;
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};
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struct srcimp_mgr {
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struct rsc_mgr mgr; /* Basic resource manager info */
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struct snd_card *card; /* pointer to this card */
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spinlock_t mgr_lock;
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spinlock_t imap_lock;
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struct list_head imappers;
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struct imapper *init_imap;
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unsigned int init_imap_added;
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/* request srcimp resource */
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int (*get_srcimp)(struct srcimp_mgr *mgr,
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const struct srcimp_desc *desc,
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struct srcimp **rsrcimp);
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/* return srcimp resource */
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int (*put_srcimp)(struct srcimp_mgr *mgr, struct srcimp *srcimp);
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int (*imap_add)(struct srcimp_mgr *mgr, struct imapper *entry);
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int (*imap_delete)(struct srcimp_mgr *mgr, struct imapper *entry);
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};
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/* Constructor and destructor of SRC resource manager */
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int src_mgr_create(struct hw *hw, struct src_mgr **rsrc_mgr);
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int src_mgr_destroy(struct src_mgr *src_mgr);
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/* Constructor and destructor of SRCIMP resource manager */
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int srcimp_mgr_create(struct hw *hw, struct srcimp_mgr **rsrc_mgr);
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int srcimp_mgr_destroy(struct srcimp_mgr *srcimp_mgr);
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#endif /* CTSRC_H */
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