123 lines
3.2 KiB
C
123 lines
3.2 KiB
C
/**
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* Copyright (C) 2008, Creative Technology Ltd. All Rights Reserved.
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*
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* This source file is released under GPL v2 license (no other versions).
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* See the COPYING file included in the main directory of this source
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* distribution for the license terms and conditions.
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*
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* @File ctdaio.h
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*
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* @Brief
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* This file contains the definition of Digital Audio Input Output
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* resource management object.
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*
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* @Author Liu Chun
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* @Date May 23 2008
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*
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*/
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#ifndef CTDAIO_H
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#define CTDAIO_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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/* Define the descriptor of a daio resource */
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enum DAIOTYP {
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LINEO1,
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LINEO2,
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LINEO3,
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LINEO4,
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SPDIFOO, /* S/PDIF Out (Flexijack/Optical) */
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LINEIM,
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SPDIFIO, /* S/PDIF In (Flexijack/Optical) on the card */
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SPDIFI1, /* S/PDIF In on internal Drive Bay */
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NUM_DAIOTYP
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};
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struct dao_rsc_ops;
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struct dai_rsc_ops;
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struct daio_mgr;
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struct daio {
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struct rsc rscl; /* Basic resource info for left TX/RX */
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struct rsc rscr; /* Basic resource info for right TX/RX */
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enum DAIOTYP type;
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};
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struct dao {
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struct daio daio;
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struct dao_rsc_ops *ops; /* DAO specific operations */
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struct imapper **imappers;
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struct daio_mgr *mgr;
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void *hw;
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void *ctrl_blk;
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};
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struct dai {
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struct daio daio;
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struct dai_rsc_ops *ops; /* DAI specific operations */
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void *hw;
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void *ctrl_blk;
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};
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struct dao_desc {
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unsigned int msr:4;
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unsigned int passthru:1;
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};
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struct dao_rsc_ops {
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int (*set_spos)(struct dao *dao, unsigned int spos);
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int (*commit_write)(struct dao *dao);
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int (*get_spos)(struct dao *dao, unsigned int *spos);
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int (*reinit)(struct dao *dao, const struct dao_desc *desc);
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int (*set_left_input)(struct dao *dao, struct rsc *input);
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int (*set_right_input)(struct dao *dao, struct rsc *input);
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int (*clear_left_input)(struct dao *dao);
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int (*clear_right_input)(struct dao *dao);
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};
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struct dai_rsc_ops {
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int (*set_srt_srcl)(struct dai *dai, struct rsc *src);
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int (*set_srt_srcr)(struct dai *dai, struct rsc *src);
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int (*set_srt_msr)(struct dai *dai, unsigned int msr);
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int (*set_enb_src)(struct dai *dai, unsigned int enb);
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int (*set_enb_srt)(struct dai *dai, unsigned int enb);
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int (*commit_write)(struct dai *dai);
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};
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/* Define daio resource request description info */
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struct daio_desc {
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unsigned int type:4;
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unsigned int msr:4;
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unsigned int passthru:1;
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};
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struct daio_mgr {
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struct rsc_mgr mgr; /* Basic resource manager info */
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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 one daio resource */
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int (*get_daio)(struct daio_mgr *mgr,
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const struct daio_desc *desc, struct daio **rdaio);
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/* return one daio resource */
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int (*put_daio)(struct daio_mgr *mgr, struct daio *daio);
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int (*daio_enable)(struct daio_mgr *mgr, struct daio *daio);
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int (*daio_disable)(struct daio_mgr *mgr, struct daio *daio);
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int (*imap_add)(struct daio_mgr *mgr, struct imapper *entry);
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int (*imap_delete)(struct daio_mgr *mgr, struct imapper *entry);
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int (*commit_write)(struct daio_mgr *mgr);
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};
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/* Constructor and destructor of daio resource manager */
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int daio_mgr_create(void *hw, struct daio_mgr **rdaio_mgr);
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int daio_mgr_destroy(struct daio_mgr *daio_mgr);
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#endif /* CTDAIO_H */
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