115 lines
3.5 KiB
C
115 lines
3.5 KiB
C
/* $NetBSD: cs4231var.h,v 1.10 2011/11/23 23:07:32 jmcneill Exp $ */
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/*-
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* Copyright (c) 1998, 1999 The NetBSD Foundation, Inc.
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* All rights reserved.
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*
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* This code is derived from software contributed to The NetBSD Foundation
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* by Paul Kranenburg.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
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* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
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* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
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* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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#ifndef _DEV_IC_CS4231VAR_H_
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#define _DEV_IC_CS4231VAR_H_
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#define AUDIOCS_PROM_NAME "SUNW,CS4231"
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/*
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* List of device memory allocations (see cs4231_malloc/cs4231_free).
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*/
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struct cs_dma {
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struct cs_dma *next;
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void * addr;
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bus_dmamap_t dmamap;
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bus_dma_segment_t segs[1];
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int nsegs;
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size_t size;
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};
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/*
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* DMA transfer to/from CS4231.
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*/
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struct cs_transfer {
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int t_active; /* this transfer is currently active */
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struct cs_dma *t_dma; /* dma memory to transfer from/to */
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vsize_t t_segsz; /* size of the segment */
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vsize_t t_blksz; /* call audio(9) after this many bytes */
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vsize_t t_cnt; /* how far are we into the segment */
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void (*t_intr)(void*); /* audio(9) callback */
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void *t_arg;
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const char *t_name; /* for error/debug messages */
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struct evcnt t_intrcnt;
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struct evcnt t_ierrcnt;
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};
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/*
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* Software state, per CS4231 audio chip.
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*/
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struct cs4231_softc {
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struct ad1848_softc sc_ad1848; /* base device */
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bus_space_tag_t sc_bustag;
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bus_dma_tag_t sc_dmatag;
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struct cs_dma *sc_dmas; /* allocated dma resources */
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struct evcnt sc_intrcnt; /* parent counter */
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struct cs_transfer sc_playback;
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struct cs_transfer sc_capture;
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};
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/*
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* Bus independent code shared by sbus and ebus attachments.
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*/
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void cs4231_common_attach(struct cs4231_softc *, device_t,
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bus_space_handle_t);
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int cs4231_transfer_init(struct cs4231_softc *, struct cs_transfer *,
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bus_addr_t *, bus_size_t *,
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void *, void *, int, void (*)(void *), void *);
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void cs4231_transfer_advance(struct cs_transfer *,
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bus_addr_t *, bus_size_t *);
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/*
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* Bus independent audio(9) methods.
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*/
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int cs4231_open(void *, int);
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void cs4231_close(void *);
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int cs4231_getdev(void *, struct audio_device *);
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int cs4231_set_port(void *, mixer_ctrl_t *);
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int cs4231_get_port(void *, mixer_ctrl_t *);
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int cs4231_query_devinfo(void *, mixer_devinfo_t *);
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int cs4231_get_props(void *);
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void *cs4231_malloc(void *, int, size_t);
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void cs4231_free(void *, void *, size_t);
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#endif /* _DEV_IC_CS4231VAR_H_ */
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