/*      $NetBSD: mpc5200_ac97var.h,v 1.1 2026/06/27 13:28:35 rkujawa Exp $      */

/*-
 * Copyright (c) 2026 The NetBSD Foundation, Inc.
 * All rights reserved.
 *
 * This code is derived from software contributed to The NetBSD Foundation
 * by Radoslaw Kujawa.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 *
 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
 * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
 * POSSIBILITY OF SUCH DAMAGE.
 */

#ifndef _POWERPC_MPC5200_MPC5200_AC97VAR_H_
#define _POWERPC_MPC5200_MPC5200_AC97VAR_H_

#include <sys/device.h>
#include <sys/bus.h>
#include <sys/mutex.h>

#include <dev/ic/ac97var.h>

#include <powerpc/mpc5200/bestcommvar.h>

struct mpcac97_softc {
        device_t                sc_dev;
        device_t                sc_audiodev;

        bus_space_tag_t         sc_iot;
        bus_space_handle_t      sc_ioh;
        bus_dma_tag_t           sc_dmat;
        bus_addr_t              sc_pa;          /* PSC2 block physical base */
        void                    *sc_txih;       /* BestComm completion intr */

        kmutex_t                sc_lock;        /* thread + codec serialization */
        kmutex_t                sc_intr_lock;   /* hardware interrupt lock */

        struct ac97_codec_if    *sc_codec;
        struct ac97_host_if     sc_host_if;

        /* The single coherent DMA buffer the audio layer plays from. */
        bus_dmamap_t            sc_dmamap;
        bus_dma_segment_t       sc_dmaseg;
        int                     sc_dmanseg;
        void                    *sc_dmakva;
        bus_addr_t              sc_dmaphys;
        size_t                  sc_dmasize;

        /* Playback BD-ring state. */
        struct bestcomm_bdring  sc_txring;
        bool                    sc_txon;
        u_int                   sc_nblk;
        u_int                   sc_blksize;
        u_int                   sc_curblk;      /* next descriptor to reap */
        bus_addr_t              sc_blkbase;     /* phys of the ring's block 0 */
        void                    (*sc_pintr)(void *);
        void                    *sc_pintrarg;
};

#endif /* _POWERPC_MPC5200_MPC5200_AC97VAR_H_ */