1 /* $OpenBSD: ce4231var.h,v 1.11 2010/07/26 23:17:19 jakemsr Exp $ */ 2 3 /* 4 * Copyright (c) 1999 Jason L. Wright (jason@thought.net) 5 * All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 17 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 18 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 19 * DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, 20 * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 21 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR 22 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 23 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, 24 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN 25 * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 26 * POSSIBILITY OF SUCH DAMAGE. 27 * 28 * Effort sponsored in part by the Defense Advanced Research Projects 29 * Agency (DARPA) and Air Force Research Laboratory, Air Force 30 * Materiel Command, USAF, under agreement number F30602-01-2-0537. 31 * 32 */ 33 34 /* 35 * Driver for CS4231/EBDMA based audio found in some sun4u systems 36 */ 37 38 /* 39 * List of device memory allocations (see ce4231_malloc/ce4231_free). 40 */ 41 struct cs_dma { 42 struct cs_dma * next; 43 caddr_t addr; 44 bus_dmamap_t dmamap; 45 bus_dma_segment_t segs[1]; 46 int nsegs; 47 size_t size; 48 }; 49 50 struct cs_volume { 51 u_int8_t left; 52 u_int8_t right; 53 }; 54 55 /* DMA info container for each channel (play and record). */ 56 struct cs_chdma { 57 struct cs_dma *cur_dma; 58 u_int32_t blksz; 59 u_int32_t count; 60 u_int32_t segsz; 61 u_int32_t lastaddr; 62 }; 63 64 struct ce4231_softc { 65 struct device sc_dev; /* base device */ 66 struct intrhand sc_ih; /* interrupt vectoring */ 67 bus_dma_tag_t sc_dmatag; 68 bus_space_tag_t sc_bustag; /* CS4231/DMA register tag */ 69 bus_space_handle_t sc_cshandle; /* CS4231 handle */ 70 bus_space_handle_t sc_cdmahandle; /* capture DMA handle */ 71 bus_space_handle_t sc_pdmahandle; /* playback DMA handle */ 72 bus_space_handle_t sc_auxhandle; /* AUX handle */ 73 int sc_open; /* already open? */ 74 75 void (*sc_rintr)(void *); /* input completion intr handler */ 76 void *sc_rarg; /* arg for sc_rintr() */ 77 void (*sc_pintr)(void *); /* output completion intr handler */ 78 void *sc_parg; /* arg for sc_pintr() */ 79 80 int sc_format_bits; 81 int sc_speed_bits; 82 int sc_precision; 83 int sc_need_commit; 84 int sc_channels; 85 u_int sc_last_format; 86 u_int32_t sc_burst; 87 struct cs_dma *sc_dmas; /* dma list */ 88 struct cs_chdma sc_pchdma; 89 struct cs_chdma sc_rchdma; 90 void *sc_pih, *sc_cih; 91 }; 92