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