/* $NetBSD: tms320av110var.h,v 1.13 2019/05/08 13:40:18 isaki Exp $ */

/* $NetBSD: tms320av110var.h,v 1.13 2019/05/08 13:40:18 isaki Exp $ */

/*-
* Copyright (c) 1997 The NetBSD Foundation, Inc.
* All rights reserved.
*
* This code is derived from software contributed to The NetBSD Foundation
* by Ignatios Souvatzis.
*
* 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.
*/

/*
* Machine independent definitions, declarations and data structures for
* access to the TMS320AV110 data sheet.
*
* Currently, only minimum support for audio output. For audio/video
* synchronization, more is needed.
*/

#ifndef _TMS320AV110_VAR_H_
#define _TMS320AV110_VAR_H_

#include <sys/bus.h>

/* softc */

struct tav_softc {
device_t sc_dev;
kmutex_t sc_lock;
kmutex_t sc_intr_lock;

bus_space_tag_t sc_iot;
bus_space_handle_t sc_ioh;

int sc_active;

/* above audio callback function */
void (*sc_intr)(void *);
void *sc_intrarg;
int sc_bsize;

/* below audio interrupt acknowledge function. Ignored if NULL */
void (*sc_intack)(struct tav_softc *);

/* initialization from below */

uint8_t sc_pcm_div; /* passed in */
uint8_t sc_pcm_ord; /* passed in */
uint8_t sc_pcm_18; /* passed in */
uint8_t sc_dif; /* passed in */
};

/* prototypes */

void tms320av110_attach_mi(struct tav_softc *);
int tms320av110_intr(void *);

static void tav_write_short(bus_space_tag_t, bus_space_handle_t,
bus_size_t, uint16_t);

/* access functions/macros: */
/* XXX shouldn't these be in the reg.h file? */

#define tav_read_byte(ioh, iot, off) bus_space_read_1(ioh, iot, off)

#define tav_read_short(ioh, iot, off) ( \
bus_space_read_1((ioh), (iot), (off)) | \
bus_space_read_1((ioh), (iot), (off)+1) << 8)

#define tav_read_long(ioh, iot, off) ( \
bus_space_read_1((ioh), (iot), (off)) | \
bus_space_read_1((ioh), (iot), (off)+1) << 8 | \
bus_space_read_1((ioh), (iot), (off)+2) << 16 | \
bus_space_read_1((ioh), (iot), (off)+3))

#define tav_read_time(ioh, iot, off) ( \
bus_space_read_1((ioh), (iot), (off)) | \
bus_space_read_1((ioh), (iot), (off)+1) << 8 | \
bus_space_read_1((ioh), (iot), (off)+2) << 16 | \
bus_space_read_1((ioh), (iot), (off)+3) << 24 | \
bus_space_read_1((ioh), (iot), (off)+4) << 32)

#define tav_write_byte(ioh, iot, off, v) bus_space_write_1(ioh, iot, off, v)

static __inline void
tav_write_short(bus_space_tag_t iot, bus_space_handle_t ioh,
bus_size_t off, uint16_t val)
{

bus_space_write_1(iot, ioh, off+1, (val)>>8);
bus_space_write_1(iot, ioh, off, (uint8_t)val);
}

#endif /* _TMS320AV110_VAR_H_ */