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/* $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 */
};
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