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148 lines
4.4 KiB
148 lines
4.4 KiB
/* 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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