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