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NetBSD/sys/dev/isa/wss.c
augustss e7029fc0da Make the audio API (almost) SunOS compatible. 
The changes is to allow some limited mixer manipulation through
the audio device (instead of the mixer device).
This rendered 4 methods in audio_hw_if unused so garbage collect these.
1997-10-19 07:41:33 +00:00

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/* $NetBSD: wss.c,v 1.39 1997/10/19 07:42:47 augustss Exp $ */
/*
* Copyright (c) 1994 John Brezak
* Copyright (c) 1991-1993 Regents of the University of California.
* All rights reserved.
*
* MAD support:
* Copyright (c) 1996 Lennart Augustsson
* Based on code which is
* Copyright (c) 1995 Hannu Savolainen
*
* 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.
*
*/
/*
* Copyright by Hannu Savolainen 1994
*
* 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.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR 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 AUTHOR 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 <sys/param.h>
#include <sys/systm.h>
#include <sys/errno.h>
#include <sys/ioctl.h>
#include <sys/syslog.h>
#include <sys/device.h>
#include <sys/proc.h>
#include <sys/buf.h>
#include <machine/cpu.h>
#include <machine/intr.h>
#include <machine/bus.h>
#include <machine/pio.h>
#include <sys/audioio.h>
#include <dev/audio_if.h>
#include <dev/isa/isavar.h>
#include <dev/isa/isadmavar.h>
#include <dev/ic/ad1848reg.h>
#include <dev/isa/ad1848var.h>
#include <dev/isa/wssreg.h>
#include <dev/isa/madreg.h>
/*
* Mixer devices
*/
#define WSS_MIC_IN_LVL 0
#define WSS_LINE_IN_LVL 1
#define WSS_DAC_LVL 2
#define WSS_REC_LVL 3
#define WSS_MON_LVL 4
#define WSS_MIC_IN_MUTE 5
#define WSS_LINE_IN_MUTE 6
#define WSS_DAC_MUTE 7
#define WSS_RECORD_SOURCE 8
/* Classes */
#define WSS_INPUT_CLASS 9
#define WSS_RECORD_CLASS 10
#define WSS_MONITOR_CLASS 11
#ifdef AUDIO_DEBUG
#define DPRINTF(x) if (wssdebug) printf x
int wssdebug = 0;
#else
#define DPRINTF(x)
#endif
struct wss_softc {
struct device sc_dev; /* base device */
struct isadev sc_id; /* ISA device */
void *sc_ih; /* interrupt vectoring */
bus_space_tag_t sc_iot; /* tag */
bus_space_handle_t sc_ioh; /* handle */
struct ad1848_softc sc_ad1848;
#define wss_irq sc_ad1848.sc_irq
#define wss_drq sc_ad1848.sc_drq
int mic_mute, cd_mute, dac_mute;
int mad_chip_type; /* chip type if MAD emulation of WSS */
bus_space_handle_t sc_mad_ioh; /* MAD handle */
bus_space_handle_t sc_mad_ioh1, sc_mad_ioh2, sc_mad_ioh3;
};
struct audio_device wss_device = {
"wss,ad1848",
"",
"WSS"
};
int wss_getdev __P((void *, struct audio_device *));
int wss_mixer_set_port __P((void *, mixer_ctrl_t *));
int wss_mixer_get_port __P((void *, mixer_ctrl_t *));
int wss_query_devinfo __P((void *, mixer_devinfo_t *));
static int wss_to_vol __P((mixer_ctrl_t *, struct ad1848_volume *));
static int wss_from_vol __P((mixer_ctrl_t *, struct ad1848_volume *));
static int wssfind __P((struct device *, struct wss_softc *, struct isa_attach_args *));
static int madprobe __P((struct wss_softc *, int));
static void madattach __P((struct wss_softc *));
static void madunmap __P((struct wss_softc *));
/*
* Define our interface to the higher level audio driver.
*/
struct audio_hw_if wss_hw_if = {
ad1848_open,
ad1848_close,
NULL,
ad1848_query_encoding,
ad1848_set_params,
ad1848_round_blocksize,
ad1848_commit_settings,
ad1848_dma_init_output,
ad1848_dma_init_input,
ad1848_dma_output,
ad1848_dma_input,
ad1848_halt_out_dma,
ad1848_halt_in_dma,
NULL,
wss_getdev,
NULL,
wss_mixer_set_port,
wss_mixer_get_port,
wss_query_devinfo,
ad1848_malloc,
ad1848_free,
ad1848_round,
ad1848_mappage,
ad1848_get_props,
};
int wssprobe __P((struct device *, void *, void *));
void wssattach __P((struct device *, struct device *, void *));
struct cfattach wss_ca = {
sizeof(struct wss_softc), wssprobe, wssattach
};
struct cfdriver wss_cd = {
NULL, "wss", DV_DULL
};
/*
* Probe for the Microsoft Sound System hardware.
*/
int
wssprobe(parent, match, aux)
struct device *parent;
#ifdef __BROKEN_INDIRECT_CONFIG
void *match;
#else
struct cfdata *match;
#endif
void *aux;
{
struct wss_softc probesc, *sc = &probesc;
bzero(sc, sizeof *sc);
#ifdef __BROKEN_INDIRECT_CONFIG
sc->sc_dev.dv_cfdata = ((struct device *)match)->dv_cfdata;
#else
sc->sc_dev.dv_cfdata = match;
#endif
if (wssfind(parent, sc, aux)) {
bus_space_unmap(sc->sc_iot, sc->sc_ioh, WSS_CODEC);
ad1848_unmap(&sc->sc_ad1848);
madunmap(sc);
return 1;
} else
/* Everything is already unmapped */
return 0;
}
static int
wssfind(parent, sc, ia)
struct device *parent;
struct wss_softc *sc;
struct isa_attach_args *ia;
{
static u_char interrupt_bits[12] = {
-1, -1, -1, -1, -1, -1, -1, 0x08, -1, 0x10, 0x18, 0x20
};
static u_char dma_bits[4] = {1, 2, 0, 3};
sc->sc_iot = ia->ia_iot;
if (sc->sc_dev.dv_cfdata->cf_flags & 1)
sc->mad_chip_type = madprobe(sc, ia->ia_iobase);
else
sc->mad_chip_type = MAD_NONE;
if (!WSS_BASE_VALID(ia->ia_iobase)) {
DPRINTF(("wss: configured iobase %x invalid\n", ia->ia_iobase));
goto bad1;
}
/* Map the ports upto the AD1848 port */
if (bus_space_map(sc->sc_iot, ia->ia_iobase, WSS_CODEC, 0, &sc->sc_ioh))
goto bad1;
sc->sc_ad1848.sc_iot = sc->sc_iot;
sc->sc_ad1848.sc_iobase = ia->ia_iobase + WSS_CODEC;
/* Is there an ad1848 chip at (WSS iobase + WSS_CODEC)? */
if (ad1848_probe(&sc->sc_ad1848) == 0)
goto bad;
ia->ia_iosize = WSS_NPORT;
/* Setup WSS interrupt and DMA */
if (!WSS_DRQ_VALID(ia->ia_drq)) {
DPRINTF(("wss: configured dma chan %d invalid\n", ia->ia_drq));
goto bad;
}
sc->wss_drq = ia->ia_drq;
/* XXX reqdrq? */
if (sc->wss_drq != -1 && isa_drq_isfree(parent, sc->wss_drq) == 0)
goto bad;
#ifdef NEWCONFIG
/*
* If the IRQ wasn't compiled in, auto-detect it.
*/
if (ia->ia_irq == IRQUNK) {
ia->ia_irq = isa_discoverintr(ad1848_forceintr, &sc->sc_ad1848);
if (!WSS_IRQ_VALID(ia->ia_irq)) {
printf("wss: couldn't auto-detect interrupt\n");
goto bad;
}
}
else
#endif
if (!WSS_IRQ_VALID(ia->ia_irq)) {
DPRINTF(("wss: configured interrupt %d invalid\n", ia->ia_irq));
goto bad;
}
sc->wss_irq = ia->ia_irq;
bus_space_write_1(sc->sc_iot, sc->sc_ioh, WSS_CONFIG,
(interrupt_bits[ia->ia_irq] | dma_bits[ia->ia_drq]));
if (sc->sc_ad1848.mode <= 1)
ia->ia_drq2 = -1;
return 1;
bad:
bus_space_unmap(sc->sc_iot, sc->sc_ioh, WSS_CODEC);
bad1:
madunmap(sc);
return 0;
}
/*
* Attach hardware to driver, attach hardware driver to audio
* pseudo-device driver .
*/
void
wssattach(parent, self, aux)
struct device *parent, *self;
void *aux;
{
struct wss_softc *sc = (struct wss_softc *)self;
struct isa_attach_args *ia = (struct isa_attach_args *)aux;
int version;
if (!wssfind(parent, sc, ia)) {
printf("%s: wssfind failed\n", sc->sc_dev.dv_xname);
return;
}
madattach(sc);
sc->sc_ad1848.sc_recdrq = sc->sc_ad1848.mode > 1 && ia->ia_drq2 != -1 ? ia->ia_drq2 : ia->ia_drq;
sc->sc_ad1848.sc_isa = parent;
#ifdef NEWCONFIG
isa_establish(&sc->sc_id, &sc->sc_dev);
#endif
sc->sc_ih = isa_intr_establish(ia->ia_ic, ia->ia_irq, IST_EDGE, IPL_AUDIO,
ad1848_intr, &sc->sc_ad1848);
ad1848_attach(&sc->sc_ad1848);
version = bus_space_read_1(sc->sc_iot, sc->sc_ioh, WSS_STATUS) & WSS_VERSMASK;
printf(" (vers %d)", version);
if (sc->mad_chip_type != MAD_NONE)
printf(", %s",
sc->mad_chip_type == MAD_82C929 ? "82C929" :
sc->mad_chip_type == MAD_82C928 ? "82C928" :
"OTI-601D");
printf("\n");
sc->sc_ad1848.parent = sc;
audio_attach_mi(&wss_hw_if, 0, &sc->sc_ad1848, &sc->sc_dev);
}
static int
wss_to_vol(cp, vol)
mixer_ctrl_t *cp;
struct ad1848_volume *vol;
{
if (cp->un.value.num_channels == 1) {
vol->left = vol->right = cp->un.value.level[AUDIO_MIXER_LEVEL_MONO];
return(1);
}
else if (cp->un.value.num_channels == 2) {
vol->left = cp->un.value.level[AUDIO_MIXER_LEVEL_LEFT];
vol->right = cp->un.value.level[AUDIO_MIXER_LEVEL_RIGHT];
return(1);
}
return(0);
}
static int
wss_from_vol(cp, vol)
mixer_ctrl_t *cp;
struct ad1848_volume *vol;
{
if (cp->un.value.num_channels == 1) {
cp->un.value.level[AUDIO_MIXER_LEVEL_MONO] = vol->left;
return(1);
}
else if (cp->un.value.num_channels == 2) {
cp->un.value.level[AUDIO_MIXER_LEVEL_LEFT] = vol->left;
cp->un.value.level[AUDIO_MIXER_LEVEL_RIGHT] = vol->right;
return(1);
}
return(0);
}
int
wss_getdev(addr, retp)
void *addr;
struct audio_device *retp;
{
*retp = wss_device;
return 0;
}
int
wss_mixer_set_port(addr, cp)
void *addr;
mixer_ctrl_t *cp;
{
struct ad1848_softc *ac = addr;
struct wss_softc *sc = ac->parent;
struct ad1848_volume vol;
int error = EINVAL;
DPRINTF(("wss_mixer_set_port: dev=%d type=%d\n", cp->dev, cp->type));
switch (cp->dev) {
case WSS_MIC_IN_LVL: /* Microphone */
if (cp->type == AUDIO_MIXER_VALUE) {
if (wss_to_vol(cp, &vol))
error = ad1848_set_aux2_gain(ac, &vol);
}
break;
case WSS_MIC_IN_MUTE: /* Microphone */
if (cp->type == AUDIO_MIXER_ENUM) {
sc->mic_mute = cp->un.ord;
DPRINTF(("mic mute %d\n", cp->un.ord));
error = 0;
}
break;
case WSS_LINE_IN_LVL: /* linein/CD */
if (cp->type == AUDIO_MIXER_VALUE) {
if (wss_to_vol(cp, &vol))
error = ad1848_set_aux1_gain(ac, &vol);
}
break;
case WSS_LINE_IN_MUTE: /* linein/CD */
if (cp->type == AUDIO_MIXER_ENUM) {
sc->cd_mute = cp->un.ord;
DPRINTF(("CD mute %d\n", cp->un.ord));
error = 0;
}
break;
case WSS_DAC_LVL: /* dac out */
if (cp->type == AUDIO_MIXER_VALUE) {
if (wss_to_vol(cp, &vol))
error = ad1848_set_out_gain(ac, &vol);
}
break;
case WSS_DAC_MUTE: /* dac out */
if (cp->type == AUDIO_MIXER_ENUM) {
sc->dac_mute = cp->un.ord;
DPRINTF(("DAC mute %d\n", cp->un.ord));
error = 0;
}
break;
case WSS_REC_LVL: /* record level */
if (cp->type == AUDIO_MIXER_VALUE) {
if (wss_to_vol(cp, &vol))
error = ad1848_set_rec_gain(ac, &vol);
}
break;
case WSS_RECORD_SOURCE:
if (cp->type == AUDIO_MIXER_ENUM) {
error = ad1848_set_rec_port(ac, cp->un.ord);
}
break;
case WSS_MON_LVL:
if (cp->type == AUDIO_MIXER_VALUE && cp->un.value.num_channels == 1) {
vol.left = cp->un.value.level[AUDIO_MIXER_LEVEL_MONO];
error = ad1848_set_mon_gain(ac, &vol);
}
break;
default:
return ENXIO;
/*NOTREACHED*/
}
return 0;
}
int
wss_mixer_get_port(addr, cp)
void *addr;
mixer_ctrl_t *cp;
{
struct ad1848_softc *ac = addr;
struct wss_softc *sc = ac->parent;
struct ad1848_volume vol;
int error = EINVAL;
DPRINTF(("wss_mixer_get_port: port=%d\n", cp->dev));
switch (cp->dev) {
case WSS_MIC_IN_LVL: /* Microphone */
if (cp->type == AUDIO_MIXER_VALUE) {
error = ad1848_get_aux2_gain(ac, &vol);
if (!error)
wss_from_vol(cp, &vol);
}
break;
case WSS_MIC_IN_MUTE:
if (cp->type == AUDIO_MIXER_ENUM) {
cp->un.ord = sc->mic_mute;
error = 0;
}
break;
case WSS_LINE_IN_LVL: /* linein/CD */
if (cp->type == AUDIO_MIXER_VALUE) {
error = ad1848_get_aux1_gain(ac, &vol);
if (!error)
wss_from_vol(cp, &vol);
}
break;
case WSS_LINE_IN_MUTE:
if (cp->type == AUDIO_MIXER_ENUM) {
cp->un.ord = sc->cd_mute;
error = 0;
}
break;
case WSS_DAC_LVL: /* dac out */
if (cp->type == AUDIO_MIXER_VALUE) {
error = ad1848_get_out_gain(ac, &vol);
if (!error)
wss_from_vol(cp, &vol);
}
break;
case WSS_DAC_MUTE:
if (cp->type == AUDIO_MIXER_ENUM) {
cp->un.ord = sc->dac_mute;
error = 0;
}
break;
case WSS_REC_LVL: /* record level */
if (cp->type == AUDIO_MIXER_VALUE) {
error = ad1848_get_rec_gain(ac, &vol);
if (!error)
wss_from_vol(cp, &vol);
}
break;
case WSS_RECORD_SOURCE:
if (cp->type == AUDIO_MIXER_ENUM) {
cp->un.ord = ad1848_get_rec_port(ac);
error = 0;
}
break;
case WSS_MON_LVL: /* monitor level */
if (cp->type == AUDIO_MIXER_VALUE && cp->un.value.num_channels == 1) {
error = ad1848_get_mon_gain(ac, &vol);
if (!error)
cp->un.value.level[AUDIO_MIXER_LEVEL_MONO] = vol.left;
}
break;
default:
error = ENXIO;
break;
}
return(error);
}
int
wss_query_devinfo(addr, dip)
void *addr;
mixer_devinfo_t *dip;
{
DPRINTF(("wss_query_devinfo: index=%d\n", dip->index));
switch(dip->index) {
case WSS_MIC_IN_LVL: /* Microphone */
dip->type = AUDIO_MIXER_VALUE;
dip->mixer_class = WSS_INPUT_CLASS;
dip->prev = AUDIO_MIXER_LAST;
dip->next = WSS_MIC_IN_MUTE;
strcpy(dip->label.name, AudioNmicrophone);
dip->un.v.num_channels = 2;
strcpy(dip->un.v.units.name, AudioNvolume);
break;
case WSS_LINE_IN_LVL: /* line/CD */
dip->type = AUDIO_MIXER_VALUE;
dip->mixer_class = WSS_INPUT_CLASS;
dip->prev = AUDIO_MIXER_LAST;
dip->next = WSS_LINE_IN_MUTE;
strcpy(dip->label.name, AudioNcd);
dip->un.v.num_channels = 2;
strcpy(dip->un.v.units.name, AudioNvolume);
break;
case WSS_DAC_LVL: /* dacout */
dip->type = AUDIO_MIXER_VALUE;
dip->mixer_class = WSS_INPUT_CLASS;
dip->prev = AUDIO_MIXER_LAST;
dip->next = WSS_DAC_MUTE;
strcpy(dip->label.name, AudioNdac);
dip->un.v.num_channels = 2;
strcpy(dip->un.v.units.name, AudioNvolume);
break;
case WSS_REC_LVL: /* record level */
dip->type = AUDIO_MIXER_VALUE;
dip->mixer_class = WSS_RECORD_CLASS;
dip->prev = AUDIO_MIXER_LAST;
dip->next = WSS_RECORD_SOURCE;
strcpy(dip->label.name, AudioNrecord);
dip->un.v.num_channels = 2;
strcpy(dip->un.v.units.name, AudioNvolume);
break;
case WSS_MON_LVL: /* monitor level */
dip->type = AUDIO_MIXER_VALUE;
dip->mixer_class = WSS_MONITOR_CLASS;
dip->next = dip->prev = AUDIO_MIXER_LAST;
strcpy(dip->label.name, AudioNmonitor);
dip->un.v.num_channels = 1;
strcpy(dip->un.v.units.name, AudioNvolume);
break;
case WSS_INPUT_CLASS: /* input class descriptor */
dip->type = AUDIO_MIXER_CLASS;
dip->mixer_class = WSS_INPUT_CLASS;
dip->next = dip->prev = AUDIO_MIXER_LAST;
strcpy(dip->label.name, AudioCinputs);
break;
case WSS_MONITOR_CLASS: /* monitor class descriptor */
dip->type = AUDIO_MIXER_CLASS;
dip->mixer_class = WSS_MONITOR_CLASS;
dip->next = dip->prev = AUDIO_MIXER_LAST;
strcpy(dip->label.name, AudioCmonitor);
break;
case WSS_RECORD_CLASS: /* record source class */
dip->type = AUDIO_MIXER_CLASS;
dip->mixer_class = WSS_RECORD_CLASS;
dip->next = dip->prev = AUDIO_MIXER_LAST;
strcpy(dip->label.name, AudioCrecord);
break;
case WSS_MIC_IN_MUTE:
dip->mixer_class = WSS_INPUT_CLASS;
dip->type = AUDIO_MIXER_ENUM;
dip->prev = WSS_MIC_IN_LVL;
dip->next = AUDIO_MIXER_LAST;
goto mute;
case WSS_LINE_IN_MUTE:
dip->mixer_class = WSS_INPUT_CLASS;
dip->type = AUDIO_MIXER_ENUM;
dip->prev = WSS_LINE_IN_LVL;
dip->next = AUDIO_MIXER_LAST;
goto mute;
case WSS_DAC_MUTE:
dip->mixer_class = WSS_INPUT_CLASS;
dip->type = AUDIO_MIXER_ENUM;
dip->prev = WSS_DAC_LVL;
dip->next = AUDIO_MIXER_LAST;
mute:
strcpy(dip->label.name, AudioNmute);
dip->un.e.num_mem = 2;
strcpy(dip->un.e.member[0].label.name, AudioNoff);
dip->un.e.member[0].ord = 0;
strcpy(dip->un.e.member[1].label.name, AudioNon);
dip->un.e.member[1].ord = 1;
break;
case WSS_RECORD_SOURCE:
dip->mixer_class = WSS_RECORD_CLASS;
dip->type = AUDIO_MIXER_ENUM;
dip->prev = WSS_REC_LVL;
dip->next = AUDIO_MIXER_LAST;
strcpy(dip->label.name, AudioNsource);
dip->un.e.num_mem = 3;
strcpy(dip->un.e.member[0].label.name, AudioNmicrophone);
dip->un.e.member[0].ord = WSS_MIC_IN_LVL;
strcpy(dip->un.e.member[1].label.name, AudioNcd);
dip->un.e.member[1].ord = WSS_LINE_IN_LVL;
strcpy(dip->un.e.member[2].label.name, AudioNdac);
dip->un.e.member[2].ord = WSS_DAC_LVL;
break;
default:
return ENXIO;
/*NOTREACHED*/
}
DPRINTF(("AUDIO_MIXER_DEVINFO: name=%s\n", dip->label.name));
return 0;
}
/*
* Initialization code for OPTi MAD16 compatible audio chips. Including
*
* OPTi 82C928 MAD16 (replaced by C929)
* OAK OTI-601D Mozart
* OPTi 82C929 MAD16 Pro
*
*/
static unsigned int mad_read __P((struct wss_softc *, int, int));
static void mad_write __P((struct wss_softc *, int, int, int));
static int detect_mad16 __P((struct wss_softc *, int));
static unsigned int
mad_read(sc, chip_type, port)
struct wss_softc *sc;
int chip_type;
int port;
{
unsigned int tmp;
int s = splaudio(); /* don't want an interrupt between outb&inb */
switch (chip_type) { /* Output password */
case MAD_82C928:
case MAD_OTI601D:
bus_space_write_1(sc->sc_iot, sc->sc_mad_ioh, MC_PASSWD_REG, M_PASSWD_928);
break;
case MAD_82C929:
bus_space_write_1(sc->sc_iot, sc->sc_mad_ioh, MC_PASSWD_REG, M_PASSWD_929);
break;
}
tmp = bus_space_read_1(sc->sc_iot, sc->sc_mad_ioh, port);
splx(s);
return tmp;
}
static void
mad_write(sc, chip_type, port, value)
struct wss_softc *sc;
int chip_type;
int port;
int value;
{
int s = splaudio(); /* don't want an interrupt between outb&outb */
switch (chip_type) { /* Output password */
case MAD_82C928:
case MAD_OTI601D:
bus_space_write_1(sc->sc_iot, sc->sc_mad_ioh, MC_PASSWD_REG, M_PASSWD_928);
break;
case MAD_82C929:
bus_space_write_1(sc->sc_iot, sc->sc_mad_ioh, MC_PASSWD_REG, M_PASSWD_929);
break;
}
bus_space_write_1(sc->sc_iot, sc->sc_mad_ioh, port, value & 0xff);
splx(s);
}
static int
detect_mad16(sc, chip_type)
struct wss_softc *sc;
int chip_type;
{
unsigned char tmp, tmp2;
/*
* Check that reading a register doesn't return bus float (0xff)
* when the card is accessed using password. This may fail in case
* the card is in low power mode. Normally at least the power saving mode
* bit should be 0.
*/
if ((tmp = mad_read(sc, chip_type, MC1_PORT)) == 0xff) {
DPRINTF(("MC1_PORT returned 0xff\n"));
return 0;
}
/*
* Now check that the gate is closed on first I/O after writing
* the password. (This is how a MAD16 compatible card works).
*/
if ((tmp2 = bus_space_read_1(sc->sc_iot, sc->sc_mad_ioh, MC1_PORT)) == tmp) { /* It didn't close */
DPRINTF(("MC1_PORT didn't close after read (0x%02x)\n", tmp2));
return 0;
}
mad_write(sc, chip_type, MC1_PORT, tmp ^ 0x80); /* Toggle a bit */
/* Compare the bit */
if ((tmp2 = mad_read(sc, chip_type, MC1_PORT)) != (tmp ^ 0x80)) {
mad_write(sc, chip_type, MC1_PORT, tmp); /* Restore */
DPRINTF(("Bit revert test failed (0x%02x, 0x%02x)\n", tmp, tmp2));
return 0;
}
mad_write(sc, chip_type, MC1_PORT, tmp); /* Restore */
return 1;
}
static int
madprobe(sc, iobase)
struct wss_softc *sc;
int iobase;
{
static int valid_ports[M_WSS_NPORTS] =
{ M_WSS_PORT0, M_WSS_PORT1, M_WSS_PORT2, M_WSS_PORT3 };
int i;
int chip_type;
if (bus_space_map(sc->sc_iot, MAD_BASE, MAD_NPORT, 0, &sc->sc_mad_ioh))
return MAD_NONE;
/* Allocate bus space that the MAD chip wants */
if (bus_space_map(sc->sc_iot, MAD_REG1, MAD_LEN1, 0, &sc->sc_mad_ioh1))
goto bad1;
if (bus_space_map(sc->sc_iot, MAD_REG2, MAD_LEN2, 0, &sc->sc_mad_ioh2))
goto bad2;
if (bus_space_map(sc->sc_iot, MAD_REG3, MAD_LEN3, 0, &sc->sc_mad_ioh3))
goto bad3;
DPRINTF(("mad: Detect using password = 0xE2\n"));
if (!detect_mad16(sc, MAD_82C928)) {
/* No luck. Try different model */
DPRINTF(("mad: Detect using password = 0xE3\n"));
if (!detect_mad16(sc, MAD_82C929))
goto bad;
chip_type = MAD_82C929;
DPRINTF(("mad: 82C929 detected\n"));
} else {
if ((mad_read(sc, MAD_82C928, MC3_PORT) & 0x03) == 0x03) {
DPRINTF(("mad: Mozart detected\n"));
chip_type = MAD_OTI601D;
} else {
DPRINTF(("mad: 82C928 detected?\n"));
chip_type = MAD_82C928;
}
}
#ifdef AUDIO_DEBUG
if (wssdebug)
for (i = MC1_PORT; i <= MC7_PORT; i++)
printf("mad: port %03x = %02x\n", i, mad_read(sc, chip_type, i));
#endif
/* Set the WSS address. */
for (i = 0; i < M_WSS_NPORTS; i++)
if (valid_ports[i] == iobase)
break;
if (i >= M_WSS_NPORTS) { /* Not a valid port */
printf("mad: Bad WSS base address 0x%x\n", iobase);
goto bad;
}
/* enable WSS emulation at the I/O port, no joystick */
mad_write(sc, chip_type, MC1_PORT, M_WSS_PORT_SELECT(i) | MC1_JOYDISABLE);
mad_write(sc, chip_type, MC2_PORT, 0x03); /* ? */
mad_write(sc, chip_type, MC3_PORT, 0xf0); /* Disable SB */
return chip_type;
bad:
bus_space_unmap(sc->sc_iot, sc->sc_mad_ioh3, MAD_LEN3);
bad3:
bus_space_unmap(sc->sc_iot, sc->sc_mad_ioh2, MAD_LEN2);
bad2:
bus_space_unmap(sc->sc_iot, sc->sc_mad_ioh1, MAD_LEN1);
bad1:
bus_space_unmap(sc->sc_iot, sc->sc_mad_ioh, MAD_NPORT);
return MAD_NONE;
}
static void
madunmap(sc)
struct wss_softc *sc;
{
if (sc->mad_chip_type == MAD_NONE)
return;
bus_space_unmap(sc->sc_iot, sc->sc_mad_ioh, MAD_NPORT);
bus_space_unmap(sc->sc_iot, sc->sc_mad_ioh1, MAD_LEN1);
bus_space_unmap(sc->sc_iot, sc->sc_mad_ioh2, MAD_LEN2);
bus_space_unmap(sc->sc_iot, sc->sc_mad_ioh3, MAD_LEN3);
}
static void
madattach(sc)
struct wss_softc *sc;
{
int chip_type = sc->mad_chip_type;
unsigned char cs4231_mode;
if (chip_type == MAD_NONE)
return;
cs4231_mode =
strncmp(sc->sc_ad1848.chip_name, "CS4248", 6) == 0 ||
strncmp(sc->sc_ad1848.chip_name, "CS4231", 6) == 0 ? 0x02 : 0;
if (chip_type == MAD_82C929) {
mad_write(sc, chip_type, MC4_PORT, 0xa2);
mad_write(sc, chip_type, MC5_PORT, 0xA5 | cs4231_mode);
mad_write(sc, chip_type, MC6_PORT, 0x03); /* Disable MPU401 */
} else {
mad_write(sc, chip_type, MC4_PORT, 0x02);
mad_write(sc, chip_type, MC5_PORT, 0x30 | cs4231_mode);
}
#ifdef AUDIO_DEBUG
if (wssdebug) {
int i;
for (i = MC1_PORT; i <= MC7_PORT; i++)
DPRINTF(("port %03x after init = %02x\n", i, mad_read(sc, chip_type, i)));
}
#endif
}
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