138 lines
3.4 KiB
C
138 lines
3.4 KiB
C
/* $NetBSD: esavar.h,v 1.7 2005/12/11 12:22:49 christos Exp $ */
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/*
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* Copyright (c) 2001, 2002 Jared D. McNeill <jmcneill@invisible.ca>
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* All rights reserved.
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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. The name of the author may not be used to endorse or promote products
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* derived from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
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* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
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* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
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* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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/*
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* ESS Allegro-1 / Maestro3 Audio Driver
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*
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* Based on the FreeBSD maestro3 driver
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*
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*/
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/*
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* Number of simultaneous voices
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*
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* NOTE: The current code attaches audio0 thru audioESA_NUM_VOICES-1
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* to this driver, and a lot of people probably don't want that.
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* So, we'll default to 1 but we'll allow for the possibility of
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* more.
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*
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* The current MINISRC image limits us to a maximum of 4 simultaneous voices.
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*/
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#ifndef ESA_NUM_VOICES
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#define ESA_NUM_VOICES 1
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#endif
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#define KERNADDR(p) ((void *)((p)->addr))
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#define DMAADDR(p) ((p)->map->dm_segs[0].ds_addr)
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#define ESA_MINRATE 8000
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#define ESA_MAXRATE 48000
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struct esa_list {
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int currlen;
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int mem_addr;
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int max;
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int indexmap[ESA_NUM_VOICES * 2];
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};
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struct esa_dma {
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bus_dmamap_t map;
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caddr_t addr;
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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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struct esa_dma *next;
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};
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struct esa_channel {
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int active;
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int data_offset;
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int index;
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size_t bufsize;
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int blksize;
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int pos;
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void *buf;
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uint32_t start;
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uint32_t count;
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/* mode settings */
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struct audio_params mode;
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void (*intr)(void *);
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void *arg;
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};
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struct esa_voice {
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struct device *parent; /* pointer to our parent */
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struct esa_channel play;
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struct esa_channel rec;
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struct esa_dma *dma;
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int inlist;
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int index; /* 0: play, 1: record */
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};
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struct esa_softc
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{
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struct device sc_dev;
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bus_space_tag_t sc_iot;
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bus_space_handle_t sc_ioh;
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bus_addr_t sc_iob;
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bus_size_t sc_ios;
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pcitag_t sc_tag;
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pci_chipset_tag_t sc_pct;
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bus_dma_tag_t sc_dmat;
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pcireg_t sc_pcireg;
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void *sc_ih;
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struct ac97_codec_if *codec_if;
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struct ac97_host_if host_if;
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enum ac97_host_flags codec_flags;
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struct device *sc_audiodev[ESA_NUM_VOICES];
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struct esa_voice voice[ESA_NUM_VOICES];
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struct esa_dma *sc_dmas;
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int count;
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/* timer management */
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int sc_ntimers;
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/* packed list structures */
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struct esa_list mixer_list;
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struct esa_list adc1_list;
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struct esa_list dma_list;
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struct esa_list msrc_list;
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int type; /* Allegro-1 or Maestro 3? */
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int delay1, delay2;
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void *powerhook;
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uint16_t *savemem;
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};
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