1 /* $OpenBSD: ce4231var.h,v 1.3 2002/01/24 03:06:54 jason 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 * 3. All advertising materials mentioning features or use of this software 16 * must display the following acknowledgement: 17 * This product includes software developed by Jason L. Wright 18 * 4. The name of the author may not be used to endorse or promote products 19 * derived from this software without specific prior written permission. 20 * 21 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 22 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 23 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 24 * DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, 25 * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 26 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR 27 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 28 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, 29 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN 30 * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 31 * POSSIBILITY OF SUCH DAMAGE. 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 struct ce4231_softc { 56 struct device sc_dev; /* base device */ 57 struct sbusdev sc_sd; /* sbus device */ 58 struct intrhand sc_ih; /* interrupt vectoring */ 59 bus_dma_tag_t sc_dmatag; 60 bus_space_tag_t sc_bustag; /* CS4231/DMA register tag */ 61 bus_space_handle_t sc_cshandle; /* CS4231 handle */ 62 bus_space_handle_t sc_cdmahandle; /* capture DMA handle */ 63 bus_space_handle_t sc_pdmahandle; /* playback DMA handle */ 64 bus_space_handle_t sc_auxhandle; /* AUX handle */ 65 struct evcnt sc_intrcnt; /* statistics */ 66 int sc_open; /* already open? */ 67 int sc_locked; /* locked? */ 68 69 void (*sc_rintr)(void*); /* input completion intr handler */ 70 void * sc_rarg; /* arg for sc_rintr() */ 71 void (*sc_pintr)(void*); /* output completion intr handler */ 72 void * sc_parg; /* arg for sc_pintr() */ 73 74 char sc_mute[9]; /* which devs are muted */ 75 u_int8_t sc_out_port; /* output port */ 76 struct cs_volume sc_volume[9]; /* software volume */ 77 78 int sc_format_bits; 79 int sc_speed_bits; 80 int sc_precision; 81 int sc_need_commit; 82 int sc_channels; 83 u_int sc_last_format; 84 u_int32_t sc_blksz; 85 u_int32_t sc_playcnt; 86 u_int32_t sc_playsegsz; 87 u_int32_t sc_burst; 88 u_int32_t sc_lastaddr; 89 struct cs_dma *sc_dmas; /* dma list */ 90 struct cs_dma *sc_nowplaying; 91 void *sc_pih, *sc_cih; 92 }; 93