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      1 /*	$NetBSD: mpc5200_ac97var.h,v 1.1 2026/06/27 13:28:35 rkujawa Exp $	*/
      2 
      3 /*-
      4  * Copyright (c) 2026 The NetBSD Foundation, Inc.
      5  * All rights reserved.
      6  *
      7  * This code is derived from software contributed to The NetBSD Foundation
      8  * by Radoslaw Kujawa.
      9  *
     10  * Redistribution and use in source and binary forms, with or without
     11  * modification, are permitted provided that the following conditions
     12  * are met:
     13  * 1. Redistributions of source code must retain the above copyright
     14  *    notice, this list of conditions and the following disclaimer.
     15  * 2. Redistributions in binary form must reproduce the above copyright
     16  *    notice, this list of conditions and the following disclaimer in the
     17  *    documentation and/or other materials provided with the distribution.
     18  *
     19  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
     20  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
     21  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     22  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
     23  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
     24  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
     25  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
     26  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
     27  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
     28  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
     29  * POSSIBILITY OF SUCH DAMAGE.
     30  */
     31 
     32 #ifndef _POWERPC_MPC5200_MPC5200_AC97VAR_H_
     33 #define _POWERPC_MPC5200_MPC5200_AC97VAR_H_
     34 
     35 #include <sys/device.h>
     36 #include <sys/bus.h>
     37 #include <sys/mutex.h>
     38 
     39 #include <dev/ic/ac97var.h>
     40 
     41 #include <powerpc/mpc5200/bestcommvar.h>
     42 
     43 struct mpcac97_softc {
     44 	device_t		sc_dev;
     45 	device_t		sc_audiodev;
     46 
     47 	bus_space_tag_t		sc_iot;
     48 	bus_space_handle_t	sc_ioh;
     49 	bus_dma_tag_t		sc_dmat;
     50 	bus_addr_t		sc_pa;		/* PSC2 block physical base */
     51 	void			*sc_txih;	/* BestComm completion intr */
     52 
     53 	kmutex_t		sc_lock;	/* thread + codec serialization */
     54 	kmutex_t		sc_intr_lock;	/* hardware interrupt lock */
     55 
     56 	struct ac97_codec_if	*sc_codec;
     57 	struct ac97_host_if	sc_host_if;
     58 
     59 	/* The single coherent DMA buffer the audio layer plays from. */
     60 	bus_dmamap_t		sc_dmamap;
     61 	bus_dma_segment_t	sc_dmaseg;
     62 	int			sc_dmanseg;
     63 	void			*sc_dmakva;
     64 	bus_addr_t		sc_dmaphys;
     65 	size_t			sc_dmasize;
     66 
     67 	/* Playback BD-ring state. */
     68 	struct bestcomm_bdring	sc_txring;
     69 	bool			sc_txon;
     70 	u_int			sc_nblk;
     71 	u_int			sc_blksize;
     72 	u_int			sc_curblk;	/* next descriptor to reap */
     73 	bus_addr_t		sc_blkbase;	/* phys of the ring's block 0 */
     74 	void			(*sc_pintr)(void *);
     75 	void			*sc_pintrarg;
     76 };
     77 
     78 #endif /* _POWERPC_MPC5200_MPC5200_AC97VAR_H_ */
     79