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