drv/audiovia97/audiovia97.h

	audiovia97.h revision 5fbb41393be5d63f75952b1d72d4df2642d22557
/*
 * CDDL HEADER START
 *
 * The contents of this file are subject to the terms of the
 * Common Development and Distribution License (the "License").
 * You may not use this file except in compliance with the License.
 *
 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
 * or http://www.opensolaris.org/os/licensing.
 * See the License for the specific language governing permissions
 * and limitations under the License.
 *
 * When distributing Covered Code, include this CDDL HEADER in each
 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
 * If applicable, add the following below this CDDL HEADER, with the
 * fields enclosed by brackets "[]" replaced with your own identifying
 * information: Portions Copyright [yyyy] [name of copyright owner]
 *
 * CDDL HEADER END
 */

/*
 * Copyright 2009 Sun Microsystems, Inc.  All rights reserved.
 * Use is subject to license terms.
 */

/*
 * Purpose: Definitions for the VIA VT82C686A AC97 driver
 */
/*
 * Copyright (C) 4Front Technologies 1996-2009.
 */
#ifndef AUDIOVIA97_H
#define AUDIOVIA97_H

#define VIA97_NAME      "audiovia97"

#define VIA97_NUM_PORTC     2
#define VIA97_PLAY_SGD_NUM  0
#define VIA97_REC_SGD_NUM   1
#define VIA97_NUM_SGD   512     /* Max number of SGD entries (4k/8) */

#define VIA_VENDOR_ID       0x1106
#define VIA_82C686      0x3058

#define VIA97_MAX_INTRS     256
#define VIA97_MIN_INTRS     24
#define VIA97_INTRS     175

#define CODEC_TIMEOUT_COUNT 500
#define AC97CODEC   0x80    /* Access AC97 Codec */
#define IN_CMD      0x01000000  /* busy in sending */
#define STA_VALID   0x02000000  /* 1:status data is valid */
#define CODEC_RD    0x00800000  /* Read CODEC status */
#define CODEC_INDEX 0x007F0000  /* Index of command register */
#define CODEC_DATA  0x0000FFFF  /* AC97 status register data */

typedef struct _via97_devc_t via97_devc_t;
typedef struct _via97_portc_t via97_portc_t;

struct _via97_portc_t
{
    via97_devc_t *devc;
    audio_engine_t *engine;

    int started;
    unsigned        intrs;
    unsigned        fragfr;
    unsigned        fragsz;
    unsigned        cur_frag;
    unsigned        resid;
    caddr_t         base;

    ddi_dma_handle_t    sgd_dmah;   /* dma for descriptors */
    ddi_acc_handle_t    sgd_acch;
    uint32_t        sgd_paddr;
    caddr_t         sgd_kaddr;

    ddi_dma_handle_t    buf_dmah;   /* dma for buffers */
    ddi_acc_handle_t    buf_acch;
    uint32_t        buf_paddr;
    caddr_t         buf_kaddr;
    size_t          buf_size;
    int         syncdir;
    uint64_t        count;
};

struct _via97_devc_t
{
    dev_info_t      *dip;
    audio_dev_t     *adev;
    ac97_t          *ac97;
    kstat_t         *ksp;

    boolean_t       suspended;
    ddi_acc_handle_t    pcih;
    ddi_acc_handle_t    regsh;
    caddr_t         base;
    kmutex_t        mutex;      /* For normal locking */
    kmutex_t        low_mutex;  /* For low level routines */
    ddi_intr_handle_t   ih;

    via97_portc_t *portc[VIA97_NUM_PORTC];
};

#define INL(devc, reg)      ddi_get32(devc->regsh, (void *)(reg))

#define INB(devc, reg)      ddi_get8(devc->regsh, (void *)(reg))

#define OUTL(devc, reg, val)    ddi_put32(devc->regsh, (void *)(reg), (val))

#define OUTB(devc, reg, val)    ddi_put8(devc->regsh, (void *)(reg), (val))
#define VIA97_KIOP(X)   ((kstat_intr_t *)(X->ksp->ks_data))

#endif /* AUDIOVIA97_H */