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

   1/**
   2 * Copyright (C) 2008, Creative Technology Ltd. All Rights Reserved.
   3 *
   4 * This source file is released under GPL v2 license (no other versions).
   5 * See the COPYING file included in the main directory of this source
   6 * distribution for the license terms and conditions.
   7 *
   8 * @File        ctdaio.h
   9 *
  10 * @Brief
  11 * This file contains the definition of Digital Audio Input Output
  12 * resource management object.
  13 *
  14 * @Author      Liu Chun
  15 * @Date        May 23 2008
  16 *
  17 */
  18
  19#ifndef CTDAIO_H
  20#define CTDAIO_H
  21
  22#include "ctresource.h"
  23#include "ctimap.h"
  24#include <linux/spinlock.h>
  25#include <linux/list.h>
  26#include <sound/core.h>
  27
  28/* Define the descriptor of a daio resource */
  29enum DAIOTYP {
  30        LINEO1,
  31        LINEO2,
  32        LINEO3,
  33        LINEO4,
  34        SPDIFOO,        /* S/PDIF Out (Flexijack/Optical) */
  35        LINEIM,
  36        SPDIFIO,        /* S/PDIF In (Flexijack/Optical) on the card */
  37        MIC,            /* Dedicated mic on Titanium HD */
  38        SPDIFI1,        /* S/PDIF In on internal Drive Bay */
  39        NUM_DAIOTYP
  40};
  41
  42struct dao_rsc_ops;
  43struct dai_rsc_ops;
  44struct daio_mgr;
  45
  46struct daio {
  47        struct rsc rscl;        /* Basic resource info for left TX/RX */
  48        struct rsc rscr;        /* Basic resource info for right TX/RX */
  49        enum DAIOTYP type;
  50};
  51
  52struct dao {
  53        struct daio daio;
  54        const struct dao_rsc_ops *ops;  /* DAO specific operations */
  55        struct imapper **imappers;
  56        struct daio_mgr *mgr;
  57        struct hw *hw;
  58        void *ctrl_blk;
  59};
  60
  61struct dai {
  62        struct daio daio;
  63        const struct dai_rsc_ops *ops;  /* DAI specific operations */
  64        struct hw *hw;
  65        void *ctrl_blk;
  66};
  67
  68struct dao_desc {
  69        unsigned int msr:4;
  70        unsigned int passthru:1;
  71};
  72
  73struct dao_rsc_ops {
  74        int (*set_spos)(struct dao *dao, unsigned int spos);
  75        int (*commit_write)(struct dao *dao);
  76        int (*get_spos)(struct dao *dao, unsigned int *spos);
  77        int (*reinit)(struct dao *dao, const struct dao_desc *desc);
  78        int (*set_left_input)(struct dao *dao, struct rsc *input);
  79        int (*set_right_input)(struct dao *dao, struct rsc *input);
  80        int (*clear_left_input)(struct dao *dao);
  81        int (*clear_right_input)(struct dao *dao);
  82};
  83
  84struct dai_rsc_ops {
  85        int (*set_srt_srcl)(struct dai *dai, struct rsc *src);
  86        int (*set_srt_srcr)(struct dai *dai, struct rsc *src);
  87        int (*set_srt_msr)(struct dai *dai, unsigned int msr);
  88        int (*set_enb_src)(struct dai *dai, unsigned int enb);
  89        int (*set_enb_srt)(struct dai *dai, unsigned int enb);
  90        int (*commit_write)(struct dai *dai);
  91};
  92
  93/* Define daio resource request description info */
  94struct daio_desc {
  95        unsigned int type:4;
  96        unsigned int msr:4;
  97        unsigned int passthru:1;
  98};
  99
 100struct daio_mgr {
 101        struct rsc_mgr mgr;     /* Basic resource manager info */
 102        struct snd_card *card;  /* pointer to this card */
 103        spinlock_t mgr_lock;
 104        spinlock_t imap_lock;
 105        struct list_head imappers;
 106        struct imapper *init_imap;
 107        unsigned int init_imap_added;
 108
 109         /* request one daio resource */
 110        int (*get_daio)(struct daio_mgr *mgr,
 111                        const struct daio_desc *desc, struct daio **rdaio);
 112        /* return one daio resource */
 113        int (*put_daio)(struct daio_mgr *mgr, struct daio *daio);
 114        int (*daio_enable)(struct daio_mgr *mgr, struct daio *daio);
 115        int (*daio_disable)(struct daio_mgr *mgr, struct daio *daio);
 116        int (*imap_add)(struct daio_mgr *mgr, struct imapper *entry);
 117        int (*imap_delete)(struct daio_mgr *mgr, struct imapper *entry);
 118        int (*commit_write)(struct daio_mgr *mgr);
 119};
 120
 121/* Constructor and destructor of daio resource manager */
 122int daio_mgr_create(struct hw *hw, struct daio_mgr **rdaio_mgr);
 123int daio_mgr_destroy(struct daio_mgr *daio_mgr);
 124
 125#endif /* CTDAIO_H */
 126