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 */
  29 enum 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
  42 struct dao_rsc_ops;
  43 struct dai_rsc_ops;
  44 struct daio_mgr;
  45
  46 struct 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
  52 struct 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
  61 struct 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
  68 struct dao_desc {
  69         unsigned int msr:4;
  70         unsigned int passthru:1;
  71 };
  72
  73 struct 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
  84 struct 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 */
  94 struct daio_desc {
  95         unsigned int type:4;
  96         unsigned int msr:4;
  97         unsigned int passthru:1;
  98 };
  99
 100 struct 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 */
 122 int daio_mgr_create(struct hw *hw, struct daio_mgr **rdaio_mgr);
 123 int daio_mgr_destroy(struct daio_mgr *daio_mgr);
 124
 125 #endif /* CTDAIO_H */