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 */
  28 enum 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
  41 struct dao_rsc_ops;
  42 struct dai_rsc_ops;
  43 struct daio_mgr;
  44
  45 struct 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
  51 struct 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
  60 struct dai {
  61         struct daio daio;
  62         struct dai_rsc_ops *ops;        /* DAI specific operations */
  63         void *hw;
  64         void *ctrl_blk;
  65 };
  66
  67 struct dao_desc {
  68         unsigned int msr:4;
  69         unsigned int passthru:1;
  70 };
  71
  72 struct 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
  83 struct 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 */
  93 struct daio_desc {
  94         unsigned int type:4;
  95         unsigned int msr:4;
  96         unsigned int passthru:1;
  97 };
  98
  99 struct 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 */
 120 int daio_mgr_create(void *hw, struct daio_mgr **rdaio_mgr);
 121 int daio_mgr_destroy(struct daio_mgr *daio_mgr);
 122
 123 #endif /* CTDAIO_H */