407 lines
12 KiB
C
407 lines
12 KiB
C
/* $NetBSD: wss_isa.c,v 1.21 2006/05/14 21:42:27 elad 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) 1994 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.
|
|
*
|
|
*/
|
|
|
|
#include <sys/cdefs.h>
|
|
__KERNEL_RCSID(0, "$NetBSD: wss_isa.c,v 1.21 2006/05/14 21:42:27 elad Exp $");
|
|
|
|
#include <sys/param.h>
|
|
#include <sys/systm.h>
|
|
#include <sys/device.h>
|
|
#include <sys/errno.h>
|
|
|
|
#include <machine/cpu.h>
|
|
#include <machine/intr.h>
|
|
#include <machine/bus.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/wssvar.h>
|
|
#include <dev/isa/madreg.h>
|
|
|
|
#ifdef AUDIO_DEBUG
|
|
#define DPRINTF(x) if (wssdebug) printf x
|
|
extern int wssdebug;
|
|
#else
|
|
#define DPRINTF(x)
|
|
#endif
|
|
|
|
static int wssfind(struct device *, struct wss_softc *, int,
|
|
struct isa_attach_args *);
|
|
|
|
static void madprobe(struct wss_softc *, int);
|
|
static void madunmap(struct wss_softc *);
|
|
static int detect_mad16(struct wss_softc *, int);
|
|
|
|
int wss_isa_probe(struct device *, struct cfdata *, void *);
|
|
void wss_isa_attach(struct device *, struct device *, void *);
|
|
|
|
CFATTACH_DECL(wss_isa, sizeof(struct wss_softc),
|
|
wss_isa_probe, wss_isa_attach, NULL, NULL);
|
|
|
|
/*
|
|
* Probe for the Microsoft Sound System hardware.
|
|
*/
|
|
int
|
|
wss_isa_probe(struct device *parent, struct cfdata *match, void *aux)
|
|
{
|
|
struct isa_attach_args *ia;
|
|
struct wss_softc probesc, *sc;
|
|
struct ad1848_softc *ac;
|
|
|
|
ia = aux;
|
|
sc = &probesc;
|
|
ac = (struct ad1848_softc *)&sc->sc_ad1848;
|
|
if (ia->ia_nio < 1)
|
|
return 0;
|
|
if (ia->ia_nirq < 1)
|
|
return 0;
|
|
if (ia->ia_ndrq < 1)
|
|
return 0;
|
|
|
|
if (ISA_DIRECT_CONFIG(ia))
|
|
return 0;
|
|
|
|
memset(sc, 0, sizeof *sc);
|
|
ac->sc_dev.dv_cfdata = match;
|
|
if (wssfind(parent, sc, 1, aux)) {
|
|
bus_space_unmap(sc->sc_iot, sc->sc_ioh, WSS_CODEC);
|
|
ad1848_isa_unmap(&sc->sc_ad1848);
|
|
madunmap(sc);
|
|
return 1;
|
|
} else
|
|
/* Everything is already unmapped */
|
|
return 0;
|
|
}
|
|
|
|
static int
|
|
wssfind(struct device *parent, struct wss_softc *sc, int probing,
|
|
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};
|
|
struct ad1848_softc *ac;
|
|
int ndrq, playdrq, recdrq;
|
|
|
|
ac = &sc->sc_ad1848.sc_ad1848;
|
|
sc->sc_iot = ia->ia_iot;
|
|
if (device_cfdata(&ac->sc_dev)->cf_flags & 1)
|
|
madprobe(sc, ia->ia_io[0].ir_addr);
|
|
else
|
|
sc->mad_chip_type = MAD_NONE;
|
|
|
|
#if 0
|
|
if (!WSS_BASE_VALID(ia->ia_io[0].ir_addr)) {
|
|
DPRINTF(("wss: configured iobase %x invalid\n", ia->ia_iobase));
|
|
goto bad1;
|
|
}
|
|
#endif
|
|
|
|
/* Map the ports upto the AD1848 port */
|
|
if (bus_space_map(sc->sc_iot, ia->ia_io[0].ir_addr, WSS_CODEC,
|
|
0, &sc->sc_ioh))
|
|
goto bad1;
|
|
|
|
ac->sc_iot = sc->sc_iot;
|
|
|
|
/* Is there an ad1848 chip at (WSS iobase + WSS_CODEC)? */
|
|
if (ad1848_isa_mapprobe(&sc->sc_ad1848,
|
|
ia->ia_io[0].ir_addr + WSS_CODEC) == 0)
|
|
goto bad;
|
|
|
|
#if 0
|
|
/* Setup WSS interrupt and DMA */
|
|
if (!WSS_DRQ_VALID(ia->ia_drq[0].ir_drq)) {
|
|
DPRINTF(("wss: configured DMA chan %d invalid\n",
|
|
ia->ia_drq[0].ir_drq));
|
|
goto bad;
|
|
}
|
|
#endif
|
|
sc->wss_playdrq = ia->ia_drq[0].ir_drq;
|
|
sc->wss_ic = ia->ia_ic;
|
|
|
|
if (sc->wss_playdrq != ISA_UNKNOWN_DRQ &&
|
|
!isa_drq_isfree(sc->wss_ic, sc->wss_playdrq))
|
|
goto bad;
|
|
|
|
#if 0
|
|
if (!WSS_IRQ_VALID(ia->ia_irq[0].ir_irq)) {
|
|
DPRINTF(("wss: configured interrupt %d invalid\n",
|
|
ia->ia_irq[0].ir_irq));
|
|
goto bad;
|
|
}
|
|
#endif
|
|
|
|
sc->wss_irq = ia->ia_irq[0].ir_irq;
|
|
|
|
playdrq = ia->ia_drq[0].ir_drq;
|
|
if (ia->ia_ndrq > 1) {
|
|
ndrq = 2;
|
|
recdrq = ia->ia_drq[1].ir_drq;
|
|
} else {
|
|
ndrq = 1;
|
|
recdrq = ISA_UNKNOWN_DRQ;
|
|
}
|
|
|
|
if (ac->mode <= 1)
|
|
ndrq = 1;
|
|
sc->wss_recdrq =
|
|
ac->mode > 1 && ndrq > 1 &&
|
|
recdrq != ISA_UNKNOWN_DRQ ? recdrq : playdrq;
|
|
if (sc->wss_recdrq != sc->wss_playdrq && !isa_drq_isfree(sc->wss_ic,
|
|
sc->wss_recdrq))
|
|
goto bad;
|
|
|
|
if (probing) {
|
|
ia->ia_nio = 1;
|
|
ia->ia_io[0].ir_size = WSS_NPORT;
|
|
|
|
ia->ia_nirq = 1;
|
|
|
|
ia->ia_ndrq = ndrq;
|
|
ia->ia_drq[0].ir_drq = playdrq;
|
|
if (ndrq > 1)
|
|
ia->ia_drq[1].ir_drq = recdrq;
|
|
|
|
ia->ia_niomem = 0;
|
|
}
|
|
|
|
/* XXX recdrq */
|
|
bus_space_write_1(sc->sc_iot, sc->sc_ioh, WSS_CONFIG,
|
|
(interrupt_bits[ia->ia_irq[0].ir_irq] |
|
|
dma_bits[ia->ia_drq[0].ir_drq]));
|
|
|
|
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
|
|
wss_isa_attach(struct device *parent, struct device *self, void *aux)
|
|
{
|
|
struct wss_softc *sc;
|
|
struct ad1848_softc *ac;
|
|
struct isa_attach_args *ia;
|
|
|
|
sc = (struct wss_softc *)self;
|
|
ac = (struct ad1848_softc *)&sc->sc_ad1848;
|
|
ia = (struct isa_attach_args *)aux;
|
|
if (!wssfind(parent, sc, 0, ia)) {
|
|
printf("%s: wssfind failed\n", ac->sc_dev.dv_xname);
|
|
return;
|
|
}
|
|
|
|
sc->wss_ic = ia->ia_ic;
|
|
|
|
wssattach(sc);
|
|
}
|
|
|
|
/*
|
|
* 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.
|
|
*
|
|
*/
|
|
|
|
/*
|
|
* Initialization code for OPTi MAD16 compatible audio chips. Including
|
|
*
|
|
* OPTi 82C928 MAD16 (replaced by C929)
|
|
* OAK OTI-601D Mozart
|
|
* OPTi 82C929 MAD16 Pro
|
|
* OPTi 82C931
|
|
*/
|
|
|
|
static int
|
|
detect_mad16(struct wss_softc *sc, int chip_type)
|
|
{
|
|
unsigned char tmp, tmp2;
|
|
|
|
sc->mad_chip_type = chip_type;
|
|
/*
|
|
* 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, 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->mad_ioh, MC1_PORT)) == tmp) {
|
|
DPRINTF(("MC1_PORT didn't close after read (0x%02x)\n", tmp2));
|
|
return 0;
|
|
}
|
|
|
|
mad_write(sc, MC1_PORT, tmp ^ 0x80); /* Toggle a bit */
|
|
|
|
/* Compare the bit */
|
|
if ((tmp2 = mad_read(sc, MC1_PORT)) != (tmp ^ 0x80)) {
|
|
mad_write(sc, MC1_PORT, tmp); /* Restore */
|
|
DPRINTF(("Bit revert test failed (0x%02x, 0x%02x)\n", tmp, tmp2));
|
|
return 0;
|
|
}
|
|
|
|
mad_write(sc, MC1_PORT, tmp); /* Restore */
|
|
return 1;
|
|
}
|
|
|
|
static void
|
|
madprobe(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;
|
|
|
|
/* Allocate bus space that the MAD chip wants */
|
|
if (bus_space_map(sc->sc_iot, MAD_BASE, MAD_NPORT, 0, &sc->mad_ioh))
|
|
goto bad0;
|
|
if (bus_space_map(sc->sc_iot, MAD_REG1, MAD_LEN1, 0, &sc->mad_ioh1))
|
|
goto bad1;
|
|
if (bus_space_map(sc->sc_iot, MAD_REG2, MAD_LEN2, 0, &sc->mad_ioh2))
|
|
goto bad2;
|
|
if (bus_space_map(sc->sc_iot, MAD_REG3, MAD_LEN3, 0, &sc->sc_opl_ioh))
|
|
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;
|
|
sc->mad_chip_type = MAD_82C929;
|
|
DPRINTF(("mad: 82C929 detected\n"));
|
|
} else {
|
|
sc->mad_chip_type = MAD_82C928;
|
|
if ((mad_read(sc, MC3_PORT) & 0x03) == 0x03) {
|
|
DPRINTF(("mad: Mozart detected\n"));
|
|
sc->mad_chip_type = MAD_OTI601D;
|
|
} else {
|
|
DPRINTF(("mad: 82C928 detected?\n"));
|
|
sc->mad_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, 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;
|
|
}
|
|
sc->mad_ioindex = i;
|
|
/* enable WSS emulation at the I/O port, no joystick */
|
|
mad_write(sc, MC1_PORT, M_WSS_PORT_SELECT(i) | MC1_JOYDISABLE);
|
|
mad_write(sc, MC2_PORT, 0x03); /* ? */
|
|
mad_write(sc, MC3_PORT, 0xf0); /* Disable SB */
|
|
return;
|
|
|
|
bad:
|
|
bus_space_unmap(sc->sc_iot, sc->sc_opl_ioh, MAD_LEN3);
|
|
bad3:
|
|
bus_space_unmap(sc->sc_iot, sc->mad_ioh2, MAD_LEN2);
|
|
bad2:
|
|
bus_space_unmap(sc->sc_iot, sc->mad_ioh1, MAD_LEN1);
|
|
bad1:
|
|
bus_space_unmap(sc->sc_iot, sc->mad_ioh, MAD_NPORT);
|
|
bad0:
|
|
sc->mad_chip_type = MAD_NONE;
|
|
}
|
|
|
|
static void
|
|
madunmap(struct wss_softc *sc)
|
|
{
|
|
|
|
if (sc->mad_chip_type == MAD_NONE)
|
|
return;
|
|
bus_space_unmap(sc->sc_iot, sc->mad_ioh, MAD_NPORT);
|
|
bus_space_unmap(sc->sc_iot, sc->mad_ioh1, MAD_LEN1);
|
|
bus_space_unmap(sc->sc_iot, sc->mad_ioh2, MAD_LEN2);
|
|
bus_space_unmap(sc->sc_iot, sc->sc_opl_ioh, MAD_LEN3);
|
|
}
|