/*	$NetBSD: wss.c,v 1.71 2011/11/24 03:35:58 mrg Exp $	*/

/*
 * Copyright (c) 1994 John Brezak
 * 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 <sys/cdefs.h>
__KERNEL_RCSID(0, "$NetBSD: wss.c,v 1.71 2011/11/24 03:35:58 mrg Exp $");

#include <sys/param.h>
#include <sys/systm.h>
#include <sys/device.h>
#include <sys/errno.h>
#include <sys/cpu.h>
#include <sys/intr.h>
#include <sys/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/ic/cs4231reg.h>
#include <dev/isa/ad1848var.h>
#include <dev/isa/cs4231var.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
int	wssdebug = 0;
#else
#define DPRINTF(x)
#endif

struct audio_device wss_device = {
	"wss,ad1848",
	"",
	"WSS"
};

int	wss_intr(void *);
int	wss_getdev(void *, struct audio_device *);

int	wss_mixer_set_port(void *, mixer_ctrl_t *);
int	wss_mixer_get_port(void *, mixer_ctrl_t *);
int	wss_query_devinfo(void *, mixer_devinfo_t *);

/*
 * Define our interface to the higher level audio driver.
 */

const struct audio_hw_if wss_hw_if = {
	ad1848_isa_open,
	ad1848_isa_close,
	NULL,
	ad1848_query_encoding,
	ad1848_set_params,
	ad1848_round_blocksize,
	ad1848_commit_settings,
	NULL,
	NULL,
	NULL,
	NULL,
	ad1848_isa_halt_output,
	ad1848_isa_halt_input,
	NULL,
	wss_getdev,
	NULL,
	wss_mixer_set_port,
	wss_mixer_get_port,
	wss_query_devinfo,
	ad1848_isa_malloc,
	ad1848_isa_free,
	ad1848_isa_round_buffersize,
	ad1848_isa_mappage,
	ad1848_isa_get_props,
	ad1848_isa_trigger_output,
	ad1848_isa_trigger_input,
	NULL,
	ad1848_get_locks,
};

/*
 * Attach hardware to driver, attach hardware driver to audio
 * pseudo-device driver .
 */
void
wssattach(struct wss_softc *sc)
{
	struct ad1848_softc *ac;
#if 0 /* loses on CS423X chips */
	int version;
#endif

	ac = &sc->sc_ad1848.sc_ad1848;

	ad1848_init_locks(ac, IPL_AUDIO);

	madattach(sc);

	sc->sc_ad1848.sc_ih = isa_intr_establish(sc->wss_ic, sc->wss_irq,
	    IST_EDGE, IPL_AUDIO, wss_intr, &sc->sc_ad1848);

	ad1848_isa_attach(&sc->sc_ad1848);

#if 0 /* loses on CS423X chips */
	version = bus_space_read_1(sc->sc_iot, sc->sc_ioh, WSS_STATUS)
	    & WSS_VERSMASK;
	printf(" (vers %d)", version);
#endif

	switch(sc->mad_chip_type) {
	case MAD_82C928:
		printf(", 82C928");
		break;
	case MAD_OTI601D:
		printf(", OTI-601D");
		break;
	case MAD_82C929:
		printf(", 82C929");
		break;
	case MAD_82C931:
		printf(", 82C931");
		break;
	default:
		break;
	}
	printf("\n");

	ac->parent = sc;

	audio_attach_mi(&wss_hw_if, &sc->sc_ad1848, ac->sc_dev);

	if (sc->mad_chip_type != MAD_NONE) {
		struct audio_attach_args arg;
		arg.type = AUDIODEV_TYPE_OPL;
		arg.hwif = 0;
		arg.hdl = 0;
		(void)config_found(ac->sc_dev, &arg, audioprint);
	}
}

int
wss_intr(void *addr)
{
	struct ad1848_isa_softc *sc;
	int handled;

	sc = addr;

	mutex_spin_enter(&sc->sc_ad1848.sc_intr_lock);

	handled = ad1848_isa_intr(sc);

	mutex_spin_exit(&sc->sc_ad1848.sc_intr_lock);

	return handled;
}

int
wss_getdev(void *addr, struct audio_device *retp)
{

	*retp = wss_device;
	return 0;
}

static ad1848_devmap_t mappings[] = {
	{ WSS_MIC_IN_LVL, AD1848_KIND_LVL, AD1848_AUX2_CHANNEL },
	{ WSS_LINE_IN_LVL, AD1848_KIND_LVL, AD1848_AUX1_CHANNEL },
	{ WSS_DAC_LVL, AD1848_KIND_LVL, AD1848_DAC_CHANNEL },
	{ WSS_MONITOR_LVL, AD1848_KIND_LVL, AD1848_MONO_CHANNEL },
	{ WSS_MIC_IN_MUTE, AD1848_KIND_MUTE, AD1848_AUX2_CHANNEL },
	{ WSS_LINE_IN_MUTE, AD1848_KIND_MUTE, AD1848_AUX1_CHANNEL },
	{ WSS_DAC_MUTE, AD1848_KIND_MUTE, AD1848_DAC_CHANNEL },
	{ WSS_MONITOR_MUTE, AD1848_KIND_MUTE, AD1848_MONO_CHANNEL },
	{ WSS_REC_LVL, AD1848_KIND_RECORDGAIN, -1 },
	{ WSS_RECORD_SOURCE, AD1848_KIND_RECORDSOURCE, -1}
};

static int nummap = sizeof(mappings) / sizeof(mappings[0]);

int
wss_mixer_set_port(void *addr, mixer_ctrl_t *cp)
{
	struct ad1848_softc *ac;

	ac = addr;
	return ad1848_mixer_set_port(ac, mappings, nummap, cp);
}

int
wss_mixer_get_port(void *addr, mixer_ctrl_t *cp)
{
	struct ad1848_softc *ac;

	ac = addr;
	return ad1848_mixer_get_port(ac, mappings, nummap, cp);
}

int
wss_query_devinfo(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_MONITOR_LVL:	/* monitor level */
		dip->type = AUDIO_MIXER_VALUE;
		dip->mixer_class = WSS_MONITOR_CLASS;
		dip->prev = AUDIO_MIXER_LAST;
		dip->next = WSS_MONITOR_MUTE;
		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;
		goto mute;

	case WSS_MONITOR_MUTE:
		dip->mixer_class = WSS_MONITOR_CLASS;
		dip->type = AUDIO_MIXER_ENUM;
		dip->prev = WSS_MONITOR_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;
}


/*
 * 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
 *
 */

u_int
mad_read(struct wss_softc *sc, int port)
{
	u_int tmp;
	int pwd;

	switch (sc->mad_chip_type) {	/* Output password */
	case MAD_82C928:
	case MAD_OTI601D:
		pwd = M_PASSWD_928;
		break;
	case MAD_82C929:
		pwd = M_PASSWD_929;
		break;
	case MAD_82C931:
		pwd = M_PASSWD_931;
		break;
	default:
		panic("mad_read: Bad chip type=%d", sc->mad_chip_type);
	}
	bus_space_write_1(sc->sc_iot, sc->mad_ioh, MC_PASSWD_REG, pwd);
	tmp = bus_space_read_1(sc->sc_iot, sc->mad_ioh, port);
	return tmp;
}

void
mad_write(struct wss_softc *sc, int port, int value)
{
	int pwd;

	switch (sc->mad_chip_type) {	/* Output password */
	case MAD_82C928:
	case MAD_OTI601D:
		pwd = M_PASSWD_928;
		break;
	case MAD_82C929:
		pwd = M_PASSWD_929;
		break;
	case MAD_82C931:
		pwd = M_PASSWD_931;
		break;
	default:
		panic("mad_write: Bad chip type=%d", sc->mad_chip_type);
	}
	bus_space_write_1(sc->sc_iot, sc->mad_ioh, MC_PASSWD_REG, pwd);
	bus_space_write_1(sc->sc_iot, sc->mad_ioh, port, value & 0xff);
}

void
madattach(struct wss_softc *sc)
{
	struct ad1848_softc *ac;
	unsigned char cs4231_mode;
	int joy;

	ac = (struct ad1848_softc *)&sc->sc_ad1848;
	if (sc->mad_chip_type == MAD_NONE)
		return;

	/* Do we want the joystick disabled? */
	joy = device_cfdata(ac->sc_dev)->cf_flags & 2 ? MC1_JOYDISABLE : 0;

	/* enable WSS emulation at the I/O port */
	mad_write(sc, MC1_PORT, M_WSS_PORT_SELECT(sc->mad_ioindex) | joy);
	mad_write(sc, MC2_PORT, MC2_NO_CD_DRQ); /* disable CD */
	mad_write(sc, MC3_PORT, 0xf0); /* Disable SB */

	cs4231_mode =
		strncmp(ac->chip_name, "CS4248", 6) == 0 ||
		strncmp(ac->chip_name, "CS4231", 6) == 0 ? 0x02 : 0;

	if (sc->mad_chip_type == MAD_82C929) {
		mad_write(sc, MC4_PORT, 0x92);
		mad_write(sc, MC5_PORT, 0xA5 | cs4231_mode);
		mad_write(sc, MC6_PORT, 0x03);	/* Disable MPU401 */
	} else {
		mad_write(sc, MC4_PORT, 0x02);
		mad_write(sc, 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, i)));
	}
#endif
}