120 lines
4.1 KiB
C
120 lines
4.1 KiB
C
/* $NetBSD: tms320av110var.h,v 1.3 1999/02/16 23:34:13 is Exp $ */
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/*-
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* Copyright (c) 1997 The NetBSD Foundation, Inc.
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* All rights reserved.
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*
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* This code is derived from software contributed to The NetBSD Foundation
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* by Ignatios Souvatzis.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by the NetBSD
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* Foundation, Inc. and its contributors.
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* 4. Neither the name of The NetBSD Foundation nor the names of its
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* contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
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* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
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* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
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* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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/*
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* Machine independent definitions, declarations and data structures for
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* access to the TMS320AV110 data sheet.
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*
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* Currently, only minimum support for audio output. For audio/video
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* synchronization, more is needed.
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*/
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#ifndef _TMS320AV110_VAR_H_
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#define _TMS320AV110_VAR_H_
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#include <machine/bus.h>
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/* softc */
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struct tav_softc {
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struct device sc_dev;
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bus_space_tag_t sc_iot;
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bus_space_handle_t sc_ioh;
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/* above audio callback function */
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void (*sc_intr) __P((void *));
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void *sc_intrarg;
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int sc_bsize;
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/* below audio interupt acknowledge function. Ignored if NULL */
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void (*sc_intack) __P((struct tav_softc *));
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/* initialization from below */
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u_int8_t sc_pcm_div; /* passed in */
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u_int8_t sc_pcm_ord; /* passed in */
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u_int8_t sc_pcm_18; /* passed in */
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u_int8_t sc_dif; /* passed in */
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};
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/* prototypes */
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void tms320av110_attach_mi __P((struct tav_softc *));
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int tms320av110_intr __P((void *));
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static void tav_write_short __P((bus_space_tag_t, bus_space_handle_t,
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bus_size_t, u_int16_t));
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/* access functions/macros: */
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/* XXX shouldn't these be in the reg.h file? */
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#define tav_read_byte(ioh, iot, off) bus_space_read_1(ioh, iot, off)
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#define tav_read_short(ioh, iot, off) ( \
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bus_space_read_1((ioh), (iot), (off)) | \
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bus_space_read_1((ioh), (iot), (off)+1) << 8)
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#define tav_read_long(ioh, iot, off) ( \
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bus_space_read_1((ioh), (iot), (off)) | \
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bus_space_read_1((ioh), (iot), (off)+1) << 8 | \
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bus_space_read_1((ioh), (iot), (off)+2) << 16 | \
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bus_space_read_1((ioh), (iot), (off)+3))
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#define tav_read_time(ioh, iot, off) ( \
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bus_space_read_1((ioh), (iot), (off)) | \
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bus_space_read_1((ioh), (iot), (off)+1) << 8 | \
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bus_space_read_1((ioh), (iot), (off)+2) << 16 | \
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bus_space_read_1((ioh), (iot), (off)+3) << 24 | \
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bus_space_read_1((ioh), (iot), (off)+4) << 32)
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#define tav_write_byte(ioh, iot, off, v) bus_space_write_1(ioh, iot, off, v)
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static __inline void
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tav_write_short(iot, ioh, off, val)
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bus_space_tag_t iot;
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bus_space_handle_t ioh;
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bus_size_t off;
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u_int16_t val;
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{
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bus_space_write_1(iot, ioh, off+1, (val)>>8);
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bus_space_write_1(iot, ioh, off, (u_int8_t)val);
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}
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#endif /* _TMS320AV110_VAR_H_ */
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