freebsd-dev/sys/dev/sound/pci/emu10kx-midi.c
2013-01-30 18:01:20 +00:00

254 lines
6.8 KiB
C

/*-
* Copyright (c) 1999 Seigo Tanimura
* Copyright (c) 2003 Mathew Kanner
* Copyright (c) 2003-2006 Yuriy Tsibizov <yuriy.tsibizov@gfk.ru>
* 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.
*
* 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.
*
* $FreeBSD$
*/
#include <sys/param.h>
#include <sys/types.h>
#include <sys/bus.h>
#include <machine/bus.h>
#include <sys/rman.h>
#include <sys/systm.h>
#include <sys/sbuf.h>
#include <sys/queue.h>
#include <sys/lock.h>
#include <sys/mutex.h>
#ifdef HAVE_KERNEL_OPTION_HEADERS
#include "opt_snd.h"
#endif
#include <dev/sound/chip.h>
#include <dev/sound/pcm/sound.h>
#include <dev/sound/midi/midi.h>
#include <dev/sound/midi/mpu401.h>
#include "mpufoi_if.h"
#include <dev/sound/pci/emuxkireg.h>
#include <dev/sound/pci/emu10kx.h>
struct emu_midi_softc {
struct mtx mtx;
device_t dev;
struct mpu401 *mpu;
mpu401_intr_t *mpu_intr;
struct emu_sc_info *card;
int port; /* I/O port or I/O ptr reg */
int is_emu10k1;
int fflags; /* File flags */
int ihandle; /* interrupt manager handle */
};
static uint32_t emu_midi_card_intr(void *p, uint32_t arg);
static devclass_t emu_midi_devclass;
static unsigned char
emu_mread(struct mpu401 *arg __unused, void *cookie, int reg)
{
struct emu_midi_softc *sc = cookie;
unsigned int d;
d = 0;
if (sc->is_emu10k1)
d = emu_rd(sc->card, 0x18 + reg, 1);
else
d = emu_rdptr(sc->card, 0, sc->port + reg);
return (d);
}
static void
emu_mwrite(struct mpu401 *arg __unused, void *cookie, int reg, unsigned char b)
{
struct emu_midi_softc *sc = cookie;
if (sc->is_emu10k1)
emu_wr(sc->card, 0x18 + reg, b, 1);
else
emu_wrptr(sc->card, 0, sc->port + reg, b);
}
static int
emu_muninit(struct mpu401 *arg __unused, void *cookie)
{
struct emu_midi_softc *sc = cookie;
mtx_lock(&sc->mtx);
sc->mpu_intr = NULL;
mtx_unlock(&sc->mtx);
return (0);
}
static kobj_method_t emu_mpu_methods[] = {
KOBJMETHOD(mpufoi_read, emu_mread),
KOBJMETHOD(mpufoi_write, emu_mwrite),
KOBJMETHOD(mpufoi_uninit, emu_muninit),
KOBJMETHOD_END
};
static DEFINE_CLASS(emu_mpu, emu_mpu_methods, 0);
static uint32_t
emu_midi_card_intr(void *p, uint32_t intr_status)
{
struct emu_midi_softc *sc = (struct emu_midi_softc *)p;
if (sc->mpu_intr)
(sc->mpu_intr) (sc->mpu);
if (sc->mpu_intr == NULL) {
/* We should read MIDI event to unlock card after
* interrupt. XXX - check, why this happens. */
if (bootverbose)
device_printf(sc->dev, "midi interrupt %08x without interrupt handler, force mread!\n", intr_status);
(void)emu_mread((void *)(NULL), sc, 0);
}
return (intr_status); /* Acknowledge everything */
}
static void
emu_midi_intr(void *p)
{
(void)emu_midi_card_intr(p, 0);
}
static int
emu_midi_probe(device_t dev)
{
struct emu_midi_softc *scp;
uintptr_t func, r, is_emu10k1;
r = BUS_READ_IVAR(device_get_parent(dev), dev, 0, &func);
if (func != SCF_MIDI)
return (ENXIO);
scp = device_get_softc(dev);
bzero(scp, sizeof(*scp));
r = BUS_READ_IVAR(device_get_parent(dev), dev, EMU_VAR_ISEMU10K1, &is_emu10k1);
scp->is_emu10k1 = is_emu10k1 ? 1 : 0;
device_set_desc(dev, "EMU10Kx MIDI Interface");
return (0);
}
static int
emu_midi_attach(device_t dev)
{
struct emu_midi_softc * scp;
struct sndcard_func *func;
struct emu_midiinfo *midiinfo;
uint32_t inte_val, ipr_val;
scp = device_get_softc(dev);
func = device_get_ivars(dev);
scp->dev = dev;
midiinfo = (struct emu_midiinfo *)func->varinfo;
scp->port = midiinfo->port;
scp->card = midiinfo->card;
mtx_init(&scp->mtx, device_get_nameunit(dev), "midi softc", MTX_DEF);
if (scp->is_emu10k1) {
/* SB Live! - only one MIDI device here */
inte_val = 0;
/* inte_val |= EMU_INTE_MIDITXENABLE;*/
inte_val |= EMU_INTE_MIDIRXENABLE;
ipr_val = EMU_IPR_MIDITRANSBUFE;
ipr_val |= EMU_IPR_MIDIRECVBUFE;
} else {
if (scp->port == EMU_A_MUDATA1) {
/* EXTERNAL MIDI (AudigyDrive) */
inte_val = 0;
/* inte_val |= A_EMU_INTE_MIDITXENABLE1;*/
inte_val |= EMU_INTE_MIDIRXENABLE;
ipr_val = EMU_IPR_MIDITRANSBUFE;
ipr_val |= EMU_IPR_MIDIRECVBUFE;
} else {
/* MIDI hw config port 2 */
inte_val = 0;
/* inte_val |= A_EMU_INTE_MIDITXENABLE2;*/
inte_val |= EMU_INTE_A_MIDIRXENABLE2;
ipr_val = EMU_IPR_A_MIDITRANSBUFE2;
ipr_val |= EMU_IPR_A_MIDIRECBUFE2;
}
}
scp->ihandle = emu_intr_register(scp->card, inte_val, ipr_val, &emu_midi_card_intr, scp);
/* Init the interface. */
scp->mpu = mpu401_init(&emu_mpu_class, scp, emu_midi_intr, &scp->mpu_intr);
if (scp->mpu == NULL) {
emu_intr_unregister(scp->card, scp->ihandle);
mtx_destroy(&scp->mtx);
return (ENOMEM);
}
/*
* XXX I don't know how to check for Live!Drive / AudigyDrive
* presence. Let's hope that IR enabling code will not harm if
* it is not present.
*/
if (scp->is_emu10k1)
emu_enable_ir(scp->card);
else {
if (scp->port == EMU_A_MUDATA1)
emu_enable_ir(scp->card);
}
return (0);
}
static int
emu_midi_detach(device_t dev)
{
struct emu_midi_softc *scp;
scp = device_get_softc(dev);
mpu401_uninit(scp->mpu);
emu_intr_unregister(scp->card, scp->ihandle);
mtx_destroy(&scp->mtx);
return (0);
}
static device_method_t emu_midi_methods[] = {
DEVMETHOD(device_probe, emu_midi_probe),
DEVMETHOD(device_attach, emu_midi_attach),
DEVMETHOD(device_detach, emu_midi_detach),
DEVMETHOD_END
};
static driver_t emu_midi_driver = {
"midi",
emu_midi_methods,
sizeof(struct emu_midi_softc),
};
DRIVER_MODULE(snd_emu10kx_midi, emu10kx, emu_midi_driver, emu_midi_devclass, 0, 0);
MODULE_DEPEND(snd_emu10kx_midi, snd_emu10kx, SND_EMU10KX_MINVER, SND_EMU10KX_PREFVER, SND_EMU10KX_MAXVER);
MODULE_DEPEND(snd_emu10kx_midi, sound, SOUND_MINVER, SOUND_PREFVER, SOUND_MAXVER);
MODULE_VERSION(snd_emu10kx_midi, SND_EMU10KX_PREFVER);