304 lines
7.7 KiB
C
304 lines
7.7 KiB
C
/* $NetBSD: sb.c,v 1.59 1998/06/29 22:40:56 thorpej Exp $ */
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/*
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* Copyright (c) 1991-1993 Regents of the University of California.
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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. 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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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by the Computer Systems
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* Engineering Group at Lawrence Berkeley Laboratory.
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* 4. Neither the name of the University nor of the Laboratory may be used
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* to endorse or promote products derived from this software without
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* specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, 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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#include <sys/param.h>
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#include <sys/systm.h>
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#include <sys/errno.h>
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#include <sys/ioctl.h>
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#include <sys/syslog.h>
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#include <sys/device.h>
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#include <sys/proc.h>
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#include <machine/cpu.h>
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#include <machine/intr.h>
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#include <machine/bus.h>
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#include <sys/audioio.h>
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#include <dev/audio_if.h>
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#include <dev/isa/isavar.h>
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#include <dev/isa/isadmavar.h>
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#include <dev/isa/sbreg.h>
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#include <dev/isa/sbvar.h>
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#include <dev/isa/sbdspvar.h>
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struct audio_device sb_device = {
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"SoundBlaster",
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"x",
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"sb"
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};
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int sb_getdev __P((void *, struct audio_device *));
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/*
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* Define our interface to the higher level audio driver.
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*/
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struct audio_hw_if sb_hw_if = {
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sbdsp_open,
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sbdsp_close,
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0,
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sbdsp_query_encoding,
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sbdsp_set_params,
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sbdsp_round_blocksize,
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0,
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sbdsp_dma_init_output,
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sbdsp_dma_init_input,
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sbdsp_dma_output,
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sbdsp_dma_input,
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sbdsp_haltdma,
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sbdsp_haltdma,
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sbdsp_speaker_ctl,
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sb_getdev,
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0,
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sbdsp_mixer_set_port,
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sbdsp_mixer_get_port,
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sbdsp_mixer_query_devinfo,
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sb_malloc,
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sb_free,
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sb_round,
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sb_mappage,
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sbdsp_get_props,
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};
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/*
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* Probe / attach routines.
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*/
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int
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sbmatch(sc)
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struct sbdsp_softc *sc;
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{
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static u_char drq_conf[8] = {
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0x01, 0x02, -1, 0x08, -1, 0x20, 0x40, 0x80
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};
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static u_char irq_conf[11] = {
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-1, -1, 0x01, -1, -1, 0x02, -1, 0x04, -1, 0x01, 0x08
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};
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if (sbdsp_probe(sc) == 0)
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return 0;
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/*
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* Cannot auto-discover DMA channel.
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*/
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if (ISSBPROCLASS(sc)) {
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if (!SBP_DRQ_VALID(sc->sc_drq8)) {
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printf("%s: configured dma chan %d invalid\n",
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sc->sc_dev.dv_xname, sc->sc_drq8);
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return 0;
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}
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} else {
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if (!SB_DRQ_VALID(sc->sc_drq8)) {
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printf("%s: configured dma chan %d invalid\n",
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sc->sc_dev.dv_xname, sc->sc_drq8);
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return 0;
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}
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}
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if (0 <= sc->sc_drq16 && sc->sc_drq16 <= 3)
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/*
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* XXX Some ViBRA16 cards seem to have two 8 bit DMA
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* channels. I've no clue how to use them, so ignore
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* one of them for now. -- augustss@netbsd.org
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*/
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sc->sc_drq16 = -1;
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if (ISSB16CLASS(sc)) {
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if (sc->sc_drq16 == -1)
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sc->sc_drq16 = sc->sc_drq8;
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if (!SB16_DRQ_VALID(sc->sc_drq16)) {
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printf("%s: configured dma chan %d invalid\n",
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sc->sc_dev.dv_xname, sc->sc_drq16);
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return 0;
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}
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} else
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sc->sc_drq16 = sc->sc_drq8;
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#ifdef NEWCONFIG
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/*
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* If the IRQ wasn't compiled in, auto-detect it.
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*/
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if (sc->sc_irq == IRQUNK) {
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sc->sc_irq = isa_discoverintr(sbforceintr, sc);
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sbdsp_reset(sc);
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if (ISSBPROCLASS(sc)) {
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if (!SBP_IRQ_VALID(sc->sc_irq)) {
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printf("%s: couldn't auto-detect interrupt\n",
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sc->sc_dev.dv_xname);
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return 0;
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}
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}
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else {
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if (!SB_IRQ_VALID(sc->sc_irq)) {
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printf("%s: couldn't auto-detect interrupt\n");
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sc->sc_dev.dv_xname);
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return 0;
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}
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}
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} else
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#endif
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if (ISSBPROCLASS(sc)) {
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if (!SBP_IRQ_VALID(sc->sc_irq)) {
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printf("%s: configured irq %d invalid\n",
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sc->sc_dev.dv_xname, sc->sc_irq);
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return 0;
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}
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} else {
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if (!SB_IRQ_VALID(sc->sc_irq)) {
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printf("%s: configured irq %d invalid\n",
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sc->sc_dev.dv_xname, sc->sc_irq);
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return 0;
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}
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}
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if (ISSB16CLASS(sc)) {
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int w, r;
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#if 0
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printf("%s: old drq conf %02x\n", sc->sc_dev.dv_xname,
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sbdsp_mix_read(sc, SBP_SET_DRQ));
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printf("%s: try drq conf %02x\n", sc->sc_dev.dv_xname,
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drq_conf[sc->sc_drq16] | drq_conf[sc->sc_drq8]);
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#endif
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w = drq_conf[sc->sc_drq16] | drq_conf[sc->sc_drq8];
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sbdsp_mix_write(sc, SBP_SET_DRQ, w);
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r = sbdsp_mix_read(sc, SBP_SET_DRQ) & 0xeb;
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if (r != w) {
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printf("%s: setting drq mask %02x failed, got %02x\n",
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sc->sc_dev.dv_xname, w, r);
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return 0;
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}
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#if 0
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printf("%s: new drq conf %02x\n", sc->sc_dev.dv_xname,
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sbdsp_mix_read(sc, SBP_SET_DRQ));
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#endif
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#if 0
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printf("%s: old irq conf %02x\n", sc->sc_dev.dv_xname,
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sbdsp_mix_read(sc, SBP_SET_IRQ));
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printf("%s: try irq conf %02x\n", sc->sc_dev.dv_xname,
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irq_conf[sc->sc_irq]);
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#endif
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w = irq_conf[sc->sc_irq];
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sbdsp_mix_write(sc, SBP_SET_IRQ, w);
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r = sbdsp_mix_read(sc, SBP_SET_IRQ) & 0x0f;
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if (r != w) {
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printf("%s: setting irq mask %02x failed, got %02x\n",
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sc->sc_dev.dv_xname, w, r);
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return 0;
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}
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#if 0
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printf("%s: new irq conf %02x\n", sc->sc_dev.dv_xname,
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sbdsp_mix_read(sc, SBP_SET_IRQ));
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#endif
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}
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return 1;
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}
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void
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sbattach(sc)
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struct sbdsp_softc *sc;
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{
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sc->sc_ih = isa_intr_establish(sc->sc_ic, sc->sc_irq, sc->sc_ist,
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IPL_AUDIO, sbdsp_intr, sc);
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sbdsp_attach(sc);
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audio_attach_mi(&sb_hw_if, 0, sc, &sc->sc_dev);
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}
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#ifdef NEWCONFIG
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void
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sbforceintr(aux)
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void *aux;
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{
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static char dmabuf;
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struct sbdsp_softc *sc = aux;
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/*
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* Set up a DMA read of one byte.
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* XXX Note that at this point we haven't called
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* at_setup_dmachan(). This is okay because it just
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* allocates a buffer in case it needs to make a copy,
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* and it won't need to make a copy for a 1 byte buffer.
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* (I think that calling at_setup_dmachan() should be optional;
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* if you don't call it, it will be called the first time
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* it is needed (and you pay the latency). Also, you might
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* never need the buffer anyway.)
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*/
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at_dma(DMAMODE_READ, &dmabuf, 1, sc->sc_drq8);
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if (sbdsp_wdsp(sc, SB_DSP_RDMA) == 0) {
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(void)sbdsp_wdsp(sc, 0);
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(void)sbdsp_wdsp(sc, 0);
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}
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}
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#endif
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/*
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* Various routines to interface to higher level audio driver
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*/
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int
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sb_getdev(addr, retp)
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void *addr;
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struct audio_device *retp;
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{
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struct sbdsp_softc *sc = addr;
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static char *names[] = SB_NAMES;
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char *config;
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if (sc->sc_model == SB_JAZZ)
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strncpy(retp->name, "MV Jazz16", sizeof(retp->name));
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else
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strncpy(retp->name, "SoundBlaster", sizeof(retp->name));
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sprintf(retp->version, "%d.%02d",
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SBVER_MAJOR(sc->sc_version),
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SBVER_MINOR(sc->sc_version));
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if (0 <= sc->sc_model && sc->sc_model < sizeof names / sizeof names[0])
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config = names[sc->sc_model];
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else
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config = "??";
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strncpy(retp->config, config, sizeof(retp->config));
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return 0;
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}
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