/* $OpenBSD: cs4231var.h,v 1.6 2002/10/04 01:51:45 jason Exp $ */ /* * Copyright (c) 1999 Jason L. Wright (jason@thought.net) * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * 3. All advertising materials mentioning features or use of this software * must display the following acknowledgement: * This product includes software developed by Jason L. Wright * 4. The name of the author may not be used to endorse or promote products * derived from this software without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE * DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE * POSSIBILITY OF SUCH DAMAGE. * * Effort sponsored in part by the Defense Advanced Research Projects * Agency (DARPA) and Air Force Research Laboratory, Air Force * Materiel Command, USAF, under agreement number F30602-01-2-0537. * */ /* * Driver for CS4231 based audio found in some sun4m systems */ /* * List of device memory allocations (see cs4231_malloc/cs4231_free). */ struct cs_dma { struct cs_dma * next; caddr_t addr; bus_dmamap_t dmamap; bus_dma_segment_t segs[1]; int nsegs; size_t size; }; struct cs_volume { u_int8_t left; u_int8_t right; }; struct cs_channel { void (*cs_intr)(void *); /* interrupt handler */ void *cs_arg; /* interrupt arg */ struct cs_dma *cs_curdma; /* current dma block */ u_int32_t cs_cnt; /* current block count */ u_int32_t cs_blksz; /* current block size */ u_int32_t cs_segsz; /* current segment size */ int cs_locked; /* channel locked? */ }; struct cs4231_softc { struct device sc_dev; /* base device */ struct sbusdev sc_sd; /* sbus device */ struct intrhand sc_ih; /* interrupt vectoring */ bus_dma_tag_t sc_dmatag; bus_space_tag_t sc_bustag; /* CS4231/APC register tag */ bus_space_handle_t sc_regs; /* CS4231/APC register handle */ struct evcnt sc_intrcnt; /* statistics */ int sc_burst; /* XXX: DMA burst size in effect */ int sc_open; /* already open? */ struct cs_channel sc_playback, sc_capture; char sc_mute[9]; /* which devs are muted */ u_int8_t sc_out_port; /* output port */ u_int8_t sc_in_port; /* input port */ struct cs_volume sc_volume[9]; /* software volume */ struct cs_volume sc_adc; /* adc volume */ int sc_format_bits; int sc_speed_bits; int sc_precision; int sc_need_commit; int sc_channels; struct cs_dma *sc_dmas; /* dma list */ };