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tms320av110var.h revision 1.3 
      1 /*	$NetBSD: tms320av110var.h,v 1.3 1999/02/16 23:34:13 is Exp $	*/
      2 
      3 /*-
      4  * Copyright (c) 1997 The NetBSD Foundation, Inc.
      5  * All rights reserved.
      6  *
      7  * This code is derived from software contributed to The NetBSD Foundation
      8  * by Ignatios Souvatzis.
      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  * 3. All advertising materials mentioning features or use of this software
     19  *    must display the following acknowledgement:
     20  *        This product includes software developed by the NetBSD
     21  *        Foundation, Inc. and its contributors.
     22  * 4. Neither the name of The NetBSD Foundation nor the names of its
     23  *    contributors may be used to endorse or promote products derived
     24  *    from this software without specific prior written permission.
     25  *
     26  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
     27  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
     28  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     29  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
     30  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
     31  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
     32  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
     33  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
     34  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
     35  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
     36  * POSSIBILITY OF SUCH DAMAGE.
     37  */
     38 
     39 /*
     40  * Machine independent definitions, declarations and data structures for
     41  * access to the TMS320AV110 data sheet.
     42  *
     43  * Currently, only minimum support for audio output. For audio/video
     44  * synchronization, more is needed.
     45  */
     46 
     47 #ifndef _TMS320AV110_VAR_H_
     48 #define _TMS320AV110_VAR_H_
     49 
     50 #include <machine/bus.h>
     51 
     52 /* softc */
     53 
     54 struct tav_softc {
     55 	struct device	sc_dev;
     56 
     57 	bus_space_tag_t sc_iot;
     58 	bus_space_handle_t sc_ioh;
     59 
     60 	/* above audio callback function */
     61 	void 		(*sc_intr) __P((void *));
     62 	void 		*sc_intrarg;
     63 	int		sc_bsize;
     64 
     65 	/* below audio interupt acknowledge function. Ignored if NULL */
     66 	void 		(*sc_intack) __P((struct tav_softc *));
     67 
     68 	/* initialization from below */
     69 
     70 	u_int8_t	sc_pcm_div;	/* passed in */
     71 	u_int8_t	sc_pcm_ord; 	/* passed in */
     72 	u_int8_t	sc_pcm_18; 	/* passed in */
     73 	u_int8_t	sc_dif; 	/* passed in */
     74 };
     75 
     76 /* prototypes */
     77 
     78 void tms320av110_attach_mi __P((struct tav_softc *));
     79 int tms320av110_intr __P((void *));
     80 
     81 static void tav_write_short __P((bus_space_tag_t, bus_space_handle_t,
     82 	bus_size_t, u_int16_t));
     83 
     84 /* access functions/macros: */
     85 /* XXX shouldn't these be in the reg.h file? */
     86 
     87 #define tav_read_byte(ioh, iot, off) bus_space_read_1(ioh, iot, off)
     88 
     89 #define tav_read_short(ioh, iot, off)	(		\
     90 	bus_space_read_1((ioh), (iot), (off)) 	|	\
     91 	bus_space_read_1((ioh), (iot), (off)+1) << 8)
     92 
     93 #define tav_read_long(ioh, iot, off)	(		\
     94 	bus_space_read_1((ioh), (iot), (off)) 	|	\
     95 	bus_space_read_1((ioh), (iot), (off)+1) << 8 |	\
     96 	bus_space_read_1((ioh), (iot), (off)+2) << 16 |	\
     97 	bus_space_read_1((ioh), (iot), (off)+3))
     98 
     99 #define tav_read_time(ioh, iot, off)	(		\
    100 	bus_space_read_1((ioh), (iot), (off)) 	|	\
    101 	bus_space_read_1((ioh), (iot), (off)+1) << 8 |	\
    102 	bus_space_read_1((ioh), (iot), (off)+2) << 16 |	\
    103 	bus_space_read_1((ioh), (iot), (off)+3) << 24 |	\
    104 	bus_space_read_1((ioh), (iot), (off)+4) << 32)
    105 
    106 #define tav_write_byte(ioh, iot, off, v) bus_space_write_1(ioh, iot, off, v)
    107 
    108 static __inline void
    109 tav_write_short(iot, ioh, off, val)
    110 	bus_space_tag_t iot;
    111 	bus_space_handle_t ioh;
    112 	bus_size_t off;
    113 	u_int16_t val;
    114 {
    115 	bus_space_write_1(iot, ioh, off+1, (val)>>8);
    116 	bus_space_write_1(iot, ioh, off,  (u_int8_t)val);
    117 }
    118 
    119 #endif /* _TMS320AV110_VAR_H_ */
    120