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
  27/* Define the descriptor of a daio resource */
  28enum DAIOTYP {
  29        LINEO1,
  30        LINEO2,
  31        LINEO3,
  32        LINEO4,
  33        SPDIFOO,        /* S/PDIF Out (Flexijack/Optical) */
  34        LINEIM,
  35        SPDIFIO,        /* S/PDIF In (Flexijack/Optical) on the card */
  36        MIC,            /* Dedicated mic on Titanium HD */
  37        SPDIFI1,        /* S/PDIF In on internal Drive Bay */
  38        NUM_DAIOTYP
  39};
  40
  41struct dao_rsc_ops;
  42struct dai_rsc_ops;
  43struct daio_mgr;
  44
  45struct daio {
  46        struct rsc rscl;        /* Basic resource info for left TX/RX */
  47        struct rsc rscr;        /* Basic resource info for right TX/RX */
  48        enum DAIOTYP type;
  49};
  50
  51struct dao {
  52        struct daio daio;
  53        struct dao_rsc_ops *ops;        /* DAO specific operations */
  54        struct imapper **imappers;
  55        struct daio_mgr *mgr;
  56        void *hw;
  57        void *ctrl_blk;
  58};
  59
  60struct dai {
  61        struct daio daio;
  62        struct dai_rsc_ops *ops;        /* DAI specific operations */
  63        void *hw;
  64        void *ctrl_blk;
  65};
  66
  67struct dao_desc {
  68        unsigned int msr:4;
  69        unsigned int passthru:1;
  70};
  71
  72struct dao_rsc_ops {
  73        int (*set_spos)(struct dao *dao, unsigned int spos);
  74        int (*commit_write)(struct dao *dao);
  75        int (*get_spos)(struct dao *dao, unsigned int *spos);
  76        int (*reinit)(struct dao *dao, const struct dao_desc *desc);
  77        int (*set_left_input)(struct dao *dao, struct rsc *input);
  78        int (*set_right_input)(struct dao *dao, struct rsc *input);
  79        int (*clear_left_input)(struct dao *dao);
  80        int (*clear_right_input)(struct dao *dao);
  81};
  82
  83struct dai_rsc_ops {
  84        int (*set_srt_srcl)(struct dai *dai, struct rsc *src);
  85        int (*set_srt_srcr)(struct dai *dai, struct rsc *src);
  86        int (*set_srt_msr)(struct dai *dai, unsigned int msr);
  87        int (*set_enb_src)(struct dai *dai, unsigned int enb);
  88        int (*set_enb_srt)(struct dai *dai, unsigned int enb);
  89        int (*commit_write)(struct dai *dai);
  90};
  91
  92/* Define daio resource request description info */
  93struct daio_desc {
  94        unsigned int type:4;
  95        unsigned int msr:4;
  96        unsigned int passthru:1;
  97};
  98
  99struct daio_mgr {
 100        struct rsc_mgr mgr;     /* Basic resource manager info */
 101        spinlock_t mgr_lock;
 102        spinlock_t imap_lock;
 103        struct list_head imappers;
 104        struct imapper *init_imap;
 105        unsigned int init_imap_added;
 106
 107         /* request one daio resource */
 108        int (*get_daio)(struct daio_mgr *mgr,
 109                        const struct daio_desc *desc, struct daio **rdaio);
 110        /* return one daio resource */
 111        int (*put_daio)(struct daio_mgr *mgr, struct daio *daio);
 112        int (*daio_enable)(struct daio_mgr *mgr, struct daio *daio);
 113        int (*daio_disable)(struct daio_mgr *mgr, struct daio *daio);
 114        int (*imap_add)(struct daio_mgr *mgr, struct imapper *entry);
 115        int (*imap_delete)(struct daio_mgr *mgr, struct imapper *entry);
 116        int (*commit_write)(struct daio_mgr *mgr);
 117};
 118
 119/* Constructor and destructor of daio resource manager */
 120int daio_mgr_create(void *hw, struct daio_mgr **rdaio_mgr);
 121int daio_mgr_destroy(struct daio_mgr *daio_mgr);
 122
 123#endif /* CTDAIO_H */
 124