NetBSD/sys/dev/isa/sb.c

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/* $NetBSD: sb.c,v 1.69 1999/10/10 00:08:24 mycroft Exp $ */
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/*
* Copyright (c) 1991-1993 Regents of the University of California.
* 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 the Computer Systems
* Engineering Group at Lawrence Berkeley Laboratory.
* 4. Neither the name of the University nor of the Laboratory may be used
* to endorse or promote products derived from this software without
* specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE REGENTS 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 REGENTS 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.
*
*/
#include "midi.h"
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/errno.h>
#include <sys/ioctl.h>
#include <sys/syslog.h>
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#include <sys/device.h>
#include <sys/proc.h>
#include <machine/cpu.h>
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#include <machine/intr.h>
#include <machine/bus.h>
#include <sys/audioio.h>
#include <dev/audio_if.h>
#include <dev/midi_if.h>
#include <dev/midi_if.h>
#include <dev/isa/isavar.h>
#include <dev/isa/isadmavar.h>
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#include <dev/isa/sbreg.h>
#include <dev/isa/sbvar.h>
#include <dev/isa/sbdspvar.h>
#if NMPU > 0
struct midi_hw_if sb_midi_hw_if = {
sbdsp_midi_open,
sbdsp_midi_close,
sbdsp_midi_output,
sbdsp_midi_getinfo,
0, /* ioctl */
};
#endif
struct audio_device sb_device = {
"SoundBlaster",
"x",
"sb"
};
int sb_getdev __P((void *, struct audio_device *));
/*
* Define our interface to the higher level audio driver.
*/
struct audio_hw_if sb_hw_if = {
sbdsp_open,
sbdsp_close,
0,
sbdsp_query_encoding,
sbdsp_set_params,
sbdsp_round_blocksize,
0,
0,
0,
0,
0,
sbdsp_halt_output,
sbdsp_halt_input,
sbdsp_speaker_ctl,
sb_getdev,
0,
sbdsp_mixer_set_port,
sbdsp_mixer_get_port,
sbdsp_mixer_query_devinfo,
sb_malloc,
sb_free,
sb_round_buffersize,
sb_mappage,
sbdsp_get_props,
sbdsp_trigger_output,
sbdsp_trigger_input,
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};
/*
* Probe / attach routines.
*/
int
sbmatch(sc)
struct sbdsp_softc *sc;
{
static u_char drq_conf[8] = {
0x01, 0x02, -1, 0x08, -1, 0x20, 0x40, 0x80
};
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static u_char irq_conf[11] = {
-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;
/*
* Cannot auto-discover DMA channel.
*/
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if (ISSBPROCLASS(sc)) {
if (!SBP_DRQ_VALID(sc->sc_drq8)) {
printf("%s: configured dma chan %d invalid\n",
sc->sc_dev.dv_xname, sc->sc_drq8);
return 0;
}
} else {
if (!SB_DRQ_VALID(sc->sc_drq8)) {
printf("%s: configured dma chan %d invalid\n",
sc->sc_dev.dv_xname, sc->sc_drq8);
return 0;
}
}
if (0 <= sc->sc_drq16 && sc->sc_drq16 <= 3)
/*
* XXX Some ViBRA16 cards seem to have two 8 bit DMA
* channels. I've no clue how to use them, so ignore
* one of them for now. -- augustss@netbsd.org
*/
sc->sc_drq16 = -1;
if (ISSB16CLASS(sc)) {
if (sc->sc_drq16 == -1)
sc->sc_drq16 = sc->sc_drq8;
if (!SB16_DRQ_VALID(sc->sc_drq16)) {
printf("%s: configured dma chan %d invalid\n",
sc->sc_dev.dv_xname, sc->sc_drq16);
return 0;
}
} else
sc->sc_drq16 = sc->sc_drq8;
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if (ISSBPROCLASS(sc)) {
if (!SBP_IRQ_VALID(sc->sc_irq)) {
printf("%s: configured irq %d invalid\n",
sc->sc_dev.dv_xname, sc->sc_irq);
return 0;
}
} else {
if (!SB_IRQ_VALID(sc->sc_irq)) {
printf("%s: configured irq %d invalid\n",
sc->sc_dev.dv_xname, sc->sc_irq);
return 0;
}
}
if (ISSB16CLASS(sc)) {
int w, r;
#if 0
printf("%s: old drq conf %02x\n", sc->sc_dev.dv_xname,
sbdsp_mix_read(sc, SBP_SET_DRQ));
printf("%s: try drq conf %02x\n", sc->sc_dev.dv_xname,
drq_conf[sc->sc_drq16] | drq_conf[sc->sc_drq8]);
#endif
w = drq_conf[sc->sc_drq16] | drq_conf[sc->sc_drq8];
sbdsp_mix_write(sc, SBP_SET_DRQ, w);
r = sbdsp_mix_read(sc, SBP_SET_DRQ) & 0xeb;
if (r != w) {
printf("%s: setting drq mask %02x failed, got %02x\n",
sc->sc_dev.dv_xname, w, r);
return 0;
}
#if 0
printf("%s: new drq conf %02x\n", sc->sc_dev.dv_xname,
sbdsp_mix_read(sc, SBP_SET_DRQ));
#endif
#if 0
printf("%s: old irq conf %02x\n", sc->sc_dev.dv_xname,
sbdsp_mix_read(sc, SBP_SET_IRQ));
printf("%s: try irq conf %02x\n", sc->sc_dev.dv_xname,
irq_conf[sc->sc_irq]);
#endif
w = irq_conf[sc->sc_irq];
sbdsp_mix_write(sc, SBP_SET_IRQ, w);
r = sbdsp_mix_read(sc, SBP_SET_IRQ) & 0x0f;
if (r != w) {
printf("%s: setting irq mask %02x failed, got %02x\n",
sc->sc_dev.dv_xname, w, r);
return 0;
}
#if 0
printf("%s: new irq conf %02x\n", sc->sc_dev.dv_xname,
sbdsp_mix_read(sc, SBP_SET_IRQ));
#endif
}
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return 1;
}
void
sbattach(sc)
struct sbdsp_softc *sc;
{
struct audio_attach_args arg;
sbdsp_attach(sc);
audio_attach_mi(&sb_hw_if, sc, &sc->sc_dev);
#if NMPU > 0
if (sc->sc_hasmpu) {
arg.type = AUDIODEV_TYPE_MPU;
arg.hwif = 0;
arg.hdl = 0;
sc->sc_mpudev = config_found(&sc->sc_dev, &arg, audioprint);
Several things: * Rearrange the speed mapping table and adjust the code so that the highest rate can actually be used. Previously we ended up rounding up slightly lower speeds and then losing because set_params couldn't set the mode back to the current one. * Allow 260 as a valid I/O address, since the SB1 can be jumpered to this. * Change the MPU-401 code so it can be attached as a separate device. (XXX Really, the SB code ought to just attach a subdevice itself.) * Do not attach an OPL on the SB1. Writing to the OPL registers at SB_base+0 on this card wedges my machine. (XXX Should we access it at 388 instead? The Creative web site claims that this board *does* have an OPL2, but I haven't played with this extensively.) * Allocate the SB DMA channels at open time, rather than attach time, so that a single DRQ can be used for multiple cards (if only one is in use at a given time). (XXX Let me tell you why this is a horrible hack. If the ISA DMA code tries to allocate a bounce buffer after boot time, it will generally fail, because there is no contiguous memory below 16MB and the code to allocate contiguous pages doesn't know how to move things around. Now, we shouldn't ever be using bounce buffers here, because we use isa_dmamem_alloc(). So we just turn off BUS_DMA_ALLOCNOW and we don't actually try to. That's cool, and it even works, but isa_dmamem_alloc() has the same problem. It just happens that we allocate the ring buffers at boot time, and whenever we reallocate them (due to the buffer size changing), we just deallocated the previous (contiguous) buffer, so we get lucky. This is absolutely disgusting and needs to be fixed.)
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} else {
midi_attach_mi(&sb_midi_hw_if, sc, &sc->sc_dev);
}
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#endif
Several things: * Rearrange the speed mapping table and adjust the code so that the highest rate can actually be used. Previously we ended up rounding up slightly lower speeds and then losing because set_params couldn't set the mode back to the current one. * Allow 260 as a valid I/O address, since the SB1 can be jumpered to this. * Change the MPU-401 code so it can be attached as a separate device. (XXX Really, the SB code ought to just attach a subdevice itself.) * Do not attach an OPL on the SB1. Writing to the OPL registers at SB_base+0 on this card wedges my machine. (XXX Should we access it at 388 instead? The Creative web site claims that this board *does* have an OPL2, but I haven't played with this extensively.) * Allocate the SB DMA channels at open time, rather than attach time, so that a single DRQ can be used for multiple cards (if only one is in use at a given time). (XXX Let me tell you why this is a horrible hack. If the ISA DMA code tries to allocate a bounce buffer after boot time, it will generally fail, because there is no contiguous memory below 16MB and the code to allocate contiguous pages doesn't know how to move things around. Now, we shouldn't ever be using bounce buffers here, because we use isa_dmamem_alloc(). So we just turn off BUS_DMA_ALLOCNOW and we don't actually try to. That's cool, and it even works, but isa_dmamem_alloc() has the same problem. It just happens that we allocate the ring buffers at boot time, and whenever we reallocate them (due to the buffer size changing), we just deallocated the previous (contiguous) buffer, so we get lucky. This is absolutely disgusting and needs to be fixed.)
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if (sc->sc_model >= SB_20) {
arg.type = AUDIODEV_TYPE_OPL;
arg.hwif = 0;
arg.hdl = 0;
(void)config_found(&sc->sc_dev, &arg, audioprint);
}
}
/*
* Various routines to interface to higher level audio driver
*/
int
sb_getdev(addr, retp)
void *addr;
struct audio_device *retp;
{
struct sbdsp_softc *sc = addr;
static char *names[] = SB_NAMES;
char *config;
if (sc->sc_model == SB_JAZZ)
strncpy(retp->name, "MV Jazz16", sizeof(retp->name));
else
strncpy(retp->name, "SoundBlaster", sizeof(retp->name));
sprintf(retp->version, "%d.%02d",
SBVER_MAJOR(sc->sc_version),
SBVER_MINOR(sc->sc_version));
if (0 <= sc->sc_model && sc->sc_model < sizeof names / sizeof names[0])
config = names[sc->sc_model];
else
config = "??";
strncpy(retp->config, config, sizeof(retp->config));
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return 0;
}