1 /* $NetBSD: tms320av110var.h,v 1.1 1997/10/16 23:58:12 is Exp $ */ 2 3 /*- 4 * Copyright (c) 1997 Ignatios Souvatzis. All rights reserved. 5 * 6 * Redistribution and use in source and binary forms, with or without 7 * modification, are permitted provided that the following conditions 8 * are met: 9 * 1. Redistributions of source code must retain the above copyright 10 * notice, this list of conditions and the following disclaimer. 11 * 2. Redistributions in binary form must reproduce the above copyright 12 * notice, this list of conditions and the following disclaimer in the 13 * documentation and/or other materials provided with the distribution. 14 * 3. Neither the name of the author nor the names of contributors 15 * may be used to endorse or promote products derived from this software 16 * without specific prior written permission. 17 * 18 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 19 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 20 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 21 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 22 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 23 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 24 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 25 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 26 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 27 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 28 * SUCH DAMAGE. 29 */ 30 31 /* 32 * Machine independent definitions, declarations and data structures for 33 * access to the TMS320AV110 data sheet. 34 * 35 * Currently, only minimum support for audio output. For audio/video 36 * synchronization, more is needed. 37 */ 38 39 #ifndef _TMS320AV110_VAR_H_ 40 #define _TMS320AV110_VAR_H_ 41 42 #include <machine/bus.h> 43 44 /* softc */ 45 46 struct tav_softc { 47 struct device sc_dev; 48 49 bus_space_tag_t sc_iot; 50 bus_space_handle_t sc_ioh; 51 52 /* above audio callback function */ 53 void (*sc_intr) __P((void *)); 54 void *sc_intrarg; 55 int sc_bsize; 56 57 /* below audio interupt acknowledge function. Ignored if NULL */ 58 void (*sc_intack) __P((struct tav_softc *)); 59 60 /* initialization from below */ 61 62 u_int8_t sc_pcm_div; /* passed in */ 63 u_int8_t sc_pcm_ord; /* passed in */ 64 u_int8_t sc_pcm_18; /* passed in */ 65 u_int8_t sc_dif; /* passed in */ 66 }; 67 68 /* prototypes */ 69 70 void tms320av110_attach_mi __P((struct tav_softc *)); 71 int tms320av110_intr __P((void *)); 72 73 static void tav_write_short __P((bus_space_tag_t, bus_space_handle_t, 74 bus_size_t, u_int16_t)); 75 76 /* access functions/macros: */ 77 /* XXX shouldn't these be in the reg.h file? */ 78 79 #define tav_read_byte(ioh, iot, off) bus_space_read_1(ioh, iot, off) 80 81 #define tav_read_short(ioh, iot, off) ( \ 82 bus_space_read_1((ioh), (iot), (off)) | \ 83 bus_space_read_1((ioh), (iot), (off)+1) << 8) 84 85 #define tav_read_long(ioh, iot, off) ( \ 86 bus_space_read_1((ioh), (iot), (off)) | \ 87 bus_space_read_1((ioh), (iot), (off)+1) << 8 | \ 88 bus_space_read_1((ioh), (iot), (off)+2) << 16 | \ 89 bus_space_read_1((ioh), (iot), (off)+3)) 90 91 #define tav_read_time(ioh, iot, off) ( \ 92 bus_space_read_1((ioh), (iot), (off)) | \ 93 bus_space_read_1((ioh), (iot), (off)+1) << 8 | \ 94 bus_space_read_1((ioh), (iot), (off)+2) << 16 | \ 95 bus_space_read_1((ioh), (iot), (off)+3) << 24 | \ 96 bus_space_read_1((ioh), (iot), (off)+4) << 32) 97 98 #define tav_write_byte(ioh, iot, off, v) bus_space_write_1(ioh, iot, off, v) 99 100 static __inline void 101 tav_write_short(iot, ioh, off, val) 102 bus_space_tag_t iot; 103 bus_space_handle_t ioh; 104 bus_size_t off; 105 u_int16_t val; 106 { 107 bus_space_write_1(iot, ioh, off+1, (val)>>8); 108 bus_space_write_1(iot, ioh, off, (u_int8_t)val); 109 } 110 111 #endif /* _TMS320AV110_VAR_H_ */ 112