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