/*      $NetBSD: wss.c,v 1.77 2021/08/07 16:19:12 thorpej 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 1.77 2021/08/07 16:19:12 thorpej 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/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 = {
        .open                   = ad1848_isa_open,
        .close                  = ad1848_isa_close,
        .query_format           = ad1848_query_format,
        .set_format             = ad1848_set_format,
        .commit_settings        = ad1848_commit_settings,
        .halt_output            = ad1848_isa_halt_output,
        .halt_input             = ad1848_isa_halt_input,
        .getdev                 = wss_getdev,
        .set_port               = wss_mixer_set_port,
        .get_port               = wss_mixer_get_port,
        .query_devinfo          = wss_query_devinfo,
        .allocm                 = ad1848_isa_malloc,
        .freem                  = ad1848_isa_free,
        .round_buffersize       = ad1848_isa_round_buffersize,
        .get_props              = ad1848_isa_get_props,
        .trigger_output         = ad1848_isa_trigger_output,
        .trigger_input          = ad1848_isa_trigger_input,
        .get_locks              = 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,
                    CFARGS(.iattr = "wss"));
        }
}

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
}