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        SPDIFI1,        /* S/PDIF In on internal Drive Bay */
  37        NUM_DAIOTYP
  38};
  39
  40struct dao_rsc_ops;
  41struct dai_rsc_ops;
  42struct daio_mgr;
  43
  44struct 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
  50struct 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
  59struct dai {
  60        struct daio daio;
  61        struct dai_rsc_ops *ops;        /* DAI specific operations */
  62        void *hw;
  63        void *ctrl_blk;
  64};
  65
  66struct dao_desc {
  67        unsigned int msr:4;
  68        unsigned int passthru:1;
  69};
  70
  71struct 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
  82struct 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 */
  92struct daio_desc {
  93        unsigned int type:4;
  94        unsigned int msr:4;
  95        unsigned int passthru:1;
  96};
  97
  98struct 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 */
 119int daio_mgr_create(void *hw, struct daio_mgr **rdaio_mgr);
 120int daio_mgr_destroy(struct daio_mgr *daio_mgr);
 121
 122#endif /* CTDAIO_H */
 123