NetBSD/sys/dev/ic/cs4231var.h

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/* $NetBSD: cs4231var.h,v 1.2 2002/03/12 04:48:28 uwe Exp $ */
/*-
* Copyright (c) 1998, 1999 The NetBSD Foundation, Inc.
* All rights reserved.
*
* This code is derived from software contributed to The NetBSD Foundation
* by Paul Kranenburg.
*
* 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 the NetBSD
* Foundation, Inc. and its contributors.
* 4. Neither the name of The NetBSD Foundation nor the names of its
* contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
* ``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 FOUNDATION OR CONTRIBUTORS
* 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.
*/
#ifndef _DEV_IC_CS4231VAR_H_
#define _DEV_IC_CS4231VAR_H_
#define AUDIOCS_PROM_NAME "SUNW,CS4231"
/*
* 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;
};
/*
* DMA transfer to/from CS4231.
*/
struct cs_transfer {
int t_active; /* this transfer is currently active */
struct cs_dma *t_dma; /* dma memory to transfer from/to */
vsize_t t_segsz; /* size of the segment */
vsize_t t_blksz; /* call audio(9) after this many bytes */
vsize_t t_cnt; /* how far are we into the segment */
void (*t_intr)(void*); /* audio(9) callback */
void *t_arg;
const char *t_name; /* for error/debug messages */
struct evcnt t_intrcnt;
struct evcnt t_ierrcnt;
};
/*
* Software state, per CS4231 audio chip.
*/
struct cs4231_softc {
struct ad1848_softc sc_ad1848; /* base device */
bus_space_tag_t sc_bustag;
bus_dma_tag_t sc_dmatag;
int sc_open; /* single use device */
struct cs_dma *sc_dmas; /* allocated dma resources */
struct evcnt sc_intrcnt; /* parent counter */
struct cs_transfer sc_playback;
struct cs_transfer sc_capture;
};
/*
* Bus independent code shared by sbus and ebus attachments.
*/
void cs4231_common_attach(struct cs4231_softc *, bus_space_handle_t);
int cs4231_transfer_init(struct cs4231_softc *, struct cs_transfer *,
bus_addr_t *, bus_size_t *,
void *, void *, int, void (*)(void *), void *);
void cs4231_transfer_advance(struct cs_transfer *,
bus_addr_t *, bus_size_t *);
/*
* Bus independent audio(9) methods.
*/
int cs4231_open(void *, int);
void cs4231_close(void *);
size_t cs4231_round_buffersize(void *, int, size_t);
int cs4231_round_blocksize(void *, int);
int cs4231_getdev(void *, struct audio_device *);
int cs4231_set_port(void *, mixer_ctrl_t *);
int cs4231_get_port(void *, mixer_ctrl_t *);
int cs4231_query_devinfo(void *, mixer_devinfo_t *);
int cs4231_get_props(void *);
void *cs4231_malloc(void *, int, size_t, int, int);
void cs4231_free(void *, void *, int);
#endif /* _DEV_IC_CS4231VAR_H_ */