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wss.c revision 1.43
      1 /*	$NetBSD: wss.c,v 1.43 1998/02/23 14:12:18 drochner Exp $	*/
      2 
      3 /*
      4  * Copyright (c) 1994 John Brezak
      5  * Copyright (c) 1991-1993 Regents of the University of California.
      6  * All rights reserved.
      7  *
      8  * Redistribution and use in source and binary forms, with or without
      9  * modification, are permitted provided that the following conditions
     10  * are met:
     11  * 1. Redistributions of source code must retain the above copyright
     12  *    notice, this list of conditions and the following disclaimer.
     13  * 2. Redistributions in binary form must reproduce the above copyright
     14  *    notice, this list of conditions and the following disclaimer in the
     15  *    documentation and/or other materials provided with the distribution.
     16  * 3. All advertising materials mentioning features or use of this software
     17  *    must display the following acknowledgement:
     18  *	This product includes software developed by the Computer Systems
     19  *	Engineering Group at Lawrence Berkeley Laboratory.
     20  * 4. Neither the name of the University nor of the Laboratory may be used
     21  *    to endorse or promote products derived from this software without
     22  *    specific prior written permission.
     23  *
     24  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
     25  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     26  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
     27  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
     28  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
     29  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
     30  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     31  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
     32  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     33  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     34  * SUCH DAMAGE.
     35  *
     36  */
     37 
     38 #include <sys/param.h>
     39 #include <sys/systm.h>
     40 #include <sys/errno.h>
     41 #include <sys/ioctl.h>
     42 #include <sys/syslog.h>
     43 #include <sys/device.h>
     44 #include <sys/proc.h>
     45 #include <sys/buf.h>
     46 
     47 #include <machine/cpu.h>
     48 #include <machine/intr.h>
     49 #include <machine/bus.h>
     50 
     51 #include <sys/audioio.h>
     52 #include <dev/audio_if.h>
     53 
     54 #include <dev/isa/isavar.h>
     55 #include <dev/isa/isadmavar.h>
     56 
     57 #include <dev/ic/ad1848reg.h>
     58 #include <dev/isa/ad1848var.h>
     59 #include <dev/isa/wssreg.h>
     60 #include <dev/isa/wssvar.h>
     61 #include <dev/isa/madreg.h>
     62 
     63 #ifdef AUDIO_DEBUG
     64 #define DPRINTF(x)	if (wssdebug) printf x
     65 int	wssdebug = 0;
     66 #else
     67 #define DPRINTF(x)
     68 #endif
     69 
     70 struct audio_device wss_device = {
     71 	"wss,ad1848",
     72 	"",
     73 	"WSS"
     74 };
     75 
     76 int	wss_getdev __P((void *, struct audio_device *));
     77 
     78 int	wss_mixer_set_port __P((void *, mixer_ctrl_t *));
     79 int	wss_mixer_get_port __P((void *, mixer_ctrl_t *));
     80 int	wss_query_devinfo __P((void *, mixer_devinfo_t *));
     81 
     82 static int wss_to_vol __P((mixer_ctrl_t *, struct ad1848_volume *));
     83 static int wss_from_vol __P((mixer_ctrl_t *, struct ad1848_volume *));
     84 
     85 /*
     86  * Define our interface to the higher level audio driver.
     87  */
     88 
     89 struct audio_hw_if wss_hw_if = {
     90 	ad1848_open,
     91 	ad1848_close,
     92 	NULL,
     93 	ad1848_query_encoding,
     94 	ad1848_set_params,
     95 	ad1848_round_blocksize,
     96 	ad1848_commit_settings,
     97 	ad1848_dma_init_output,
     98 	ad1848_dma_init_input,
     99 	ad1848_dma_output,
    100 	ad1848_dma_input,
    101 	ad1848_halt_out_dma,
    102 	ad1848_halt_in_dma,
    103 	NULL,
    104 	wss_getdev,
    105 	NULL,
    106 	wss_mixer_set_port,
    107 	wss_mixer_get_port,
    108 	wss_query_devinfo,
    109 	ad1848_malloc,
    110 	ad1848_free,
    111 	ad1848_round,
    112         ad1848_mappage,
    113 	ad1848_get_props,
    114 };
    115 
    116 /*
    117  * Attach hardware to driver, attach hardware driver to audio
    118  * pseudo-device driver .
    119  */
    120 void
    121 wssattach(sc)
    122     struct wss_softc *sc;
    123 {
    124     int version;
    125 
    126     madattach(sc);
    127 
    128     sc->sc_ih = isa_intr_establish(sc->sc_ic, sc->wss_irq, IST_EDGE, IPL_AUDIO,
    129         ad1848_intr, &sc->sc_ad1848);
    130 
    131     ad1848_attach(&sc->sc_ad1848);
    132 
    133     version = bus_space_read_1(sc->sc_iot, sc->sc_ioh, WSS_STATUS) & WSS_VERSMASK;
    134     printf(" (vers %d)", version);
    135     switch(sc->mad_chip_type) {
    136     case MAD_82C928:
    137 	printf(", 82C928");
    138 	break;
    139     case MAD_OTI601D:
    140 	printf(", OTI-601D");
    141 	break;
    142     case MAD_82C929:
    143 	printf(", 82C929");
    144 	break;
    145     case MAD_82C931:
    146 	printf(", 82C931");
    147 	break;
    148     default:
    149 	break;
    150     }
    151     printf("\n");
    152 
    153     sc->sc_ad1848.parent = sc;
    154 
    155     audio_attach_mi(&wss_hw_if, 0, &sc->sc_ad1848, &sc->sc_dev);
    156 }
    157 
    158 static int
    159 wss_to_vol(cp, vol)
    160     mixer_ctrl_t *cp;
    161     struct ad1848_volume *vol;
    162 {
    163     if (cp->un.value.num_channels == 1) {
    164 	vol->left = vol->right = cp->un.value.level[AUDIO_MIXER_LEVEL_MONO];
    165 	return(1);
    166     }
    167     else if (cp->un.value.num_channels == 2) {
    168 	vol->left  = cp->un.value.level[AUDIO_MIXER_LEVEL_LEFT];
    169 	vol->right = cp->un.value.level[AUDIO_MIXER_LEVEL_RIGHT];
    170 	return(1);
    171     }
    172     return(0);
    173 }
    174 
    175 static int
    176 wss_from_vol(cp, vol)
    177     mixer_ctrl_t *cp;
    178     struct ad1848_volume *vol;
    179 {
    180     if (cp->un.value.num_channels == 1) {
    181 	cp->un.value.level[AUDIO_MIXER_LEVEL_MONO] = vol->left;
    182 	return(1);
    183     }
    184     else if (cp->un.value.num_channels == 2) {
    185 	cp->un.value.level[AUDIO_MIXER_LEVEL_LEFT] = vol->left;
    186 	cp->un.value.level[AUDIO_MIXER_LEVEL_RIGHT] = vol->right;
    187 	return(1);
    188     }
    189     return(0);
    190 }
    191 
    192 int
    193 wss_getdev(addr, retp)
    194     void *addr;
    195     struct audio_device *retp;
    196 {
    197     *retp = wss_device;
    198     return 0;
    199 }
    200 
    201 int
    202 wss_mixer_set_port(addr, cp)
    203     void *addr;
    204     mixer_ctrl_t *cp;
    205 {
    206     struct ad1848_softc *ac = addr;
    207     struct wss_softc *sc = ac->parent;
    208     struct ad1848_volume vol;
    209     int error = EINVAL;
    210 
    211     DPRINTF(("wss_mixer_set_port: dev=%d type=%d\n", cp->dev, cp->type));
    212 
    213     switch (cp->dev) {
    214     case WSS_MIC_IN_LVL:	/* Microphone */
    215 	if (cp->type == AUDIO_MIXER_VALUE) {
    216 	    if (wss_to_vol(cp, &vol))
    217 		error = ad1848_set_aux2_gain(ac, &vol);
    218 	}
    219 	break;
    220 
    221     case WSS_MIC_IN_MUTE:	/* Microphone */
    222 	if (cp->type == AUDIO_MIXER_ENUM) {
    223 	    sc->mic_mute = cp->un.ord;
    224 	    DPRINTF(("mic mute %d\n", cp->un.ord));
    225 	    error = 0;
    226 	}
    227 	break;
    228 
    229     case WSS_LINE_IN_LVL:	/* linein/CD */
    230 	if (cp->type == AUDIO_MIXER_VALUE) {
    231 	    if (wss_to_vol(cp, &vol))
    232 		error = ad1848_set_aux1_gain(ac, &vol);
    233 	}
    234 	break;
    235 
    236     case WSS_LINE_IN_MUTE:	/* linein/CD */
    237 	if (cp->type == AUDIO_MIXER_ENUM) {
    238 	    sc->cd_mute = cp->un.ord;
    239 	    DPRINTF(("CD mute %d\n", cp->un.ord));
    240 	    error = 0;
    241 	}
    242 	break;
    243 
    244     case WSS_DAC_LVL:		/* dac out */
    245 	if (cp->type == AUDIO_MIXER_VALUE) {
    246 	    if (wss_to_vol(cp, &vol))
    247 		error = ad1848_set_out_gain(ac, &vol);
    248 	}
    249 	break;
    250 
    251     case WSS_DAC_MUTE:		/* dac out */
    252 	if (cp->type == AUDIO_MIXER_ENUM) {
    253 	    sc->dac_mute = cp->un.ord;
    254 	    DPRINTF(("DAC mute %d\n", cp->un.ord));
    255 	    error = 0;
    256 	}
    257 	break;
    258 
    259     case WSS_REC_LVL:		/* record level */
    260 	if (cp->type == AUDIO_MIXER_VALUE) {
    261 	    if (wss_to_vol(cp, &vol))
    262 		error = ad1848_set_rec_gain(ac, &vol);
    263 	}
    264 	break;
    265 
    266     case WSS_RECORD_SOURCE:
    267 	if (cp->type == AUDIO_MIXER_ENUM) {
    268 	    error = ad1848_set_rec_port(ac, cp->un.ord);
    269 	}
    270 	break;
    271 
    272     case WSS_MON_LVL:
    273 	if (cp->type == AUDIO_MIXER_VALUE && cp->un.value.num_channels == 1) {
    274 	    vol.left  = cp->un.value.level[AUDIO_MIXER_LEVEL_MONO];
    275 	    error = ad1848_set_mon_gain(ac, &vol);
    276 	}
    277 	break;
    278 
    279     default:
    280 	    return ENXIO;
    281 	    /*NOTREACHED*/
    282     }
    283 
    284     return 0;
    285 }
    286 
    287 int
    288 wss_mixer_get_port(addr, cp)
    289     void *addr;
    290     mixer_ctrl_t *cp;
    291 {
    292     struct ad1848_softc *ac = addr;
    293     struct wss_softc *sc = ac->parent;
    294     struct ad1848_volume vol;
    295     int error = EINVAL;
    296 
    297     DPRINTF(("wss_mixer_get_port: port=%d\n", cp->dev));
    298 
    299     switch (cp->dev) {
    300     case WSS_MIC_IN_LVL:	/* Microphone */
    301 	if (cp->type == AUDIO_MIXER_VALUE) {
    302 	    error = ad1848_get_aux2_gain(ac, &vol);
    303 	    if (!error)
    304 		wss_from_vol(cp, &vol);
    305 	}
    306 	break;
    307 
    308     case WSS_MIC_IN_MUTE:
    309 	if (cp->type == AUDIO_MIXER_ENUM) {
    310 	    cp->un.ord = sc->mic_mute;
    311 	    error = 0;
    312 	}
    313 	break;
    314 
    315     case WSS_LINE_IN_LVL:	/* linein/CD */
    316 	if (cp->type == AUDIO_MIXER_VALUE) {
    317 	    error = ad1848_get_aux1_gain(ac, &vol);
    318 	    if (!error)
    319 		wss_from_vol(cp, &vol);
    320 	}
    321 	break;
    322 
    323     case WSS_LINE_IN_MUTE:
    324 	if (cp->type == AUDIO_MIXER_ENUM) {
    325 	    cp->un.ord = sc->cd_mute;
    326 	    error = 0;
    327 	}
    328 	break;
    329 
    330     case WSS_DAC_LVL:		/* dac out */
    331 	if (cp->type == AUDIO_MIXER_VALUE) {
    332 	    error = ad1848_get_out_gain(ac, &vol);
    333 	    if (!error)
    334 		wss_from_vol(cp, &vol);
    335 	}
    336 	break;
    337 
    338     case WSS_DAC_MUTE:
    339 	if (cp->type == AUDIO_MIXER_ENUM) {
    340 	    cp->un.ord = sc->dac_mute;
    341 	    error = 0;
    342 	}
    343 	break;
    344 
    345     case WSS_REC_LVL:		/* record level */
    346 	if (cp->type == AUDIO_MIXER_VALUE) {
    347 	    error = ad1848_get_rec_gain(ac, &vol);
    348 	    if (!error)
    349 		wss_from_vol(cp, &vol);
    350 	}
    351 	break;
    352 
    353     case WSS_RECORD_SOURCE:
    354 	if (cp->type == AUDIO_MIXER_ENUM) {
    355 	    cp->un.ord = ad1848_get_rec_port(ac);
    356 	    error = 0;
    357 	}
    358 	break;
    359 
    360     case WSS_MON_LVL:		/* monitor level */
    361 	if (cp->type == AUDIO_MIXER_VALUE && cp->un.value.num_channels == 1) {
    362 	    error = ad1848_get_mon_gain(ac, &vol);
    363 	    if (!error)
    364 		cp->un.value.level[AUDIO_MIXER_LEVEL_MONO] = vol.left;
    365 	}
    366 	break;
    367 
    368     default:
    369 	error = ENXIO;
    370 	break;
    371     }
    372 
    373     return(error);
    374 }
    375 
    376 int
    377 wss_query_devinfo(addr, dip)
    378     void *addr;
    379     mixer_devinfo_t *dip;
    380 {
    381     DPRINTF(("wss_query_devinfo: index=%d\n", dip->index));
    382 
    383     switch(dip->index) {
    384     case WSS_MIC_IN_LVL:	/* Microphone */
    385 	dip->type = AUDIO_MIXER_VALUE;
    386 	dip->mixer_class = WSS_INPUT_CLASS;
    387 	dip->prev = AUDIO_MIXER_LAST;
    388 	dip->next = WSS_MIC_IN_MUTE;
    389 	strcpy(dip->label.name, AudioNmicrophone);
    390 	dip->un.v.num_channels = 2;
    391 	strcpy(dip->un.v.units.name, AudioNvolume);
    392 	break;
    393 
    394     case WSS_LINE_IN_LVL:	/* line/CD */
    395 	dip->type = AUDIO_MIXER_VALUE;
    396 	dip->mixer_class = WSS_INPUT_CLASS;
    397 	dip->prev = AUDIO_MIXER_LAST;
    398 	dip->next = WSS_LINE_IN_MUTE;
    399 	strcpy(dip->label.name, AudioNcd);
    400 	dip->un.v.num_channels = 2;
    401 	strcpy(dip->un.v.units.name, AudioNvolume);
    402 	break;
    403 
    404     case WSS_DAC_LVL:		/*  dacout */
    405 	dip->type = AUDIO_MIXER_VALUE;
    406 	dip->mixer_class = WSS_INPUT_CLASS;
    407 	dip->prev = AUDIO_MIXER_LAST;
    408 	dip->next = WSS_DAC_MUTE;
    409 	strcpy(dip->label.name, AudioNdac);
    410 	dip->un.v.num_channels = 2;
    411 	strcpy(dip->un.v.units.name, AudioNvolume);
    412 	break;
    413 
    414     case WSS_REC_LVL:	/* record level */
    415 	dip->type = AUDIO_MIXER_VALUE;
    416 	dip->mixer_class = WSS_RECORD_CLASS;
    417 	dip->prev = AUDIO_MIXER_LAST;
    418 	dip->next = WSS_RECORD_SOURCE;
    419 	strcpy(dip->label.name, AudioNrecord);
    420 	dip->un.v.num_channels = 2;
    421 	strcpy(dip->un.v.units.name, AudioNvolume);
    422 	break;
    423 
    424     case WSS_MON_LVL:	/* monitor level */
    425 	dip->type = AUDIO_MIXER_VALUE;
    426 	dip->mixer_class = WSS_MONITOR_CLASS;
    427 	dip->next = dip->prev = AUDIO_MIXER_LAST;
    428 	strcpy(dip->label.name, AudioNmonitor);
    429 	dip->un.v.num_channels = 1;
    430 	strcpy(dip->un.v.units.name, AudioNvolume);
    431 	break;
    432 
    433     case WSS_INPUT_CLASS:			/* input class descriptor */
    434 	dip->type = AUDIO_MIXER_CLASS;
    435 	dip->mixer_class = WSS_INPUT_CLASS;
    436 	dip->next = dip->prev = AUDIO_MIXER_LAST;
    437 	strcpy(dip->label.name, AudioCinputs);
    438 	break;
    439 
    440     case WSS_MONITOR_CLASS:			/* monitor class descriptor */
    441 	dip->type = AUDIO_MIXER_CLASS;
    442 	dip->mixer_class = WSS_MONITOR_CLASS;
    443 	dip->next = dip->prev = AUDIO_MIXER_LAST;
    444 	strcpy(dip->label.name, AudioCmonitor);
    445 	break;
    446 
    447     case WSS_RECORD_CLASS:			/* record source class */
    448 	dip->type = AUDIO_MIXER_CLASS;
    449 	dip->mixer_class = WSS_RECORD_CLASS;
    450 	dip->next = dip->prev = AUDIO_MIXER_LAST;
    451 	strcpy(dip->label.name, AudioCrecord);
    452 	break;
    453 
    454     case WSS_MIC_IN_MUTE:
    455 	dip->mixer_class = WSS_INPUT_CLASS;
    456 	dip->type = AUDIO_MIXER_ENUM;
    457 	dip->prev = WSS_MIC_IN_LVL;
    458 	dip->next = AUDIO_MIXER_LAST;
    459 	goto mute;
    460 
    461     case WSS_LINE_IN_MUTE:
    462 	dip->mixer_class = WSS_INPUT_CLASS;
    463 	dip->type = AUDIO_MIXER_ENUM;
    464 	dip->prev = WSS_LINE_IN_LVL;
    465 	dip->next = AUDIO_MIXER_LAST;
    466 	goto mute;
    467 
    468     case WSS_DAC_MUTE:
    469 	dip->mixer_class = WSS_INPUT_CLASS;
    470 	dip->type = AUDIO_MIXER_ENUM;
    471 	dip->prev = WSS_DAC_LVL;
    472 	dip->next = AUDIO_MIXER_LAST;
    473     mute:
    474 	strcpy(dip->label.name, AudioNmute);
    475 	dip->un.e.num_mem = 2;
    476 	strcpy(dip->un.e.member[0].label.name, AudioNoff);
    477 	dip->un.e.member[0].ord = 0;
    478 	strcpy(dip->un.e.member[1].label.name, AudioNon);
    479 	dip->un.e.member[1].ord = 1;
    480 	break;
    481 
    482     case WSS_RECORD_SOURCE:
    483 	dip->mixer_class = WSS_RECORD_CLASS;
    484 	dip->type = AUDIO_MIXER_ENUM;
    485 	dip->prev = WSS_REC_LVL;
    486 	dip->next = AUDIO_MIXER_LAST;
    487 	strcpy(dip->label.name, AudioNsource);
    488 	dip->un.e.num_mem = 3;
    489 	strcpy(dip->un.e.member[0].label.name, AudioNmicrophone);
    490 	dip->un.e.member[0].ord = WSS_MIC_IN_LVL;
    491 	strcpy(dip->un.e.member[1].label.name, AudioNcd);
    492 	dip->un.e.member[1].ord = WSS_LINE_IN_LVL;
    493 	strcpy(dip->un.e.member[2].label.name, AudioNdac);
    494 	dip->un.e.member[2].ord = WSS_DAC_LVL;
    495 	break;
    496 
    497     default:
    498 	return ENXIO;
    499 	/*NOTREACHED*/
    500     }
    501     DPRINTF(("AUDIO_MIXER_DEVINFO: name=%s\n", dip->label.name));
    502 
    503     return 0;
    504 }
    505 
    506 
    507 /*
    508  * Copyright by Hannu Savolainen 1994
    509  *
    510  * Redistribution and use in source and binary forms, with or without
    511  * modification, are permitted provided that the following conditions are
    512  * met: 1. Redistributions of source code must retain the above copyright
    513  * notice, this list of conditions and the following disclaimer. 2.
    514  * Redistributions in binary form must reproduce the above copyright notice,
    515  * this list of conditions and the following disclaimer in the documentation
    516  * and/or other materials provided with the distribution.
    517  *
    518  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND ANY
    519  * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
    520  * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
    521  * DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR
    522  * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
    523  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
    524  * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
    525  * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
    526  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
    527  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
    528  * SUCH DAMAGE.
    529  *
    530  */
    531 /*
    532  * Initialization code for OPTi MAD16 compatible audio chips. Including
    533  *
    534  *      OPTi 82C928     MAD16           (replaced by C929)
    535  *      OAK OTI-601D    Mozart
    536  *      OPTi 82C929     MAD16 Pro
    537  *
    538  */
    539 
    540 u_int
    541 mad_read(sc, port)
    542     struct wss_softc *sc;
    543     int port;
    544 {
    545     u_int tmp;
    546     int pwd;
    547     int s;
    548 
    549     switch (sc->mad_chip_type) {	/* Output password */
    550     case MAD_82C928:
    551     case MAD_OTI601D:
    552 	pwd = M_PASSWD_928;
    553 	break;
    554     case MAD_82C929:
    555 	pwd = M_PASSWD_929;
    556 	break;
    557     case MAD_82C931:
    558 	pwd = M_PASSWD_931;
    559 	break;
    560     default:
    561 	panic("mad_read: Bad chip type=%d\n", sc->mad_chip_type);
    562     }
    563     s = splaudio();		/* don't want an interrupt between outb&inb */
    564     bus_space_write_1(sc->sc_iot, sc->mad_ioh, MC_PASSWD_REG, pwd);
    565     tmp = bus_space_read_1(sc->sc_iot, sc->mad_ioh, port);
    566     splx(s);
    567     return tmp;
    568 }
    569 
    570 void
    571 mad_write(sc, port, value)
    572     struct wss_softc *sc;
    573     int port;
    574     int value;
    575 {
    576     int pwd;
    577     int s;
    578 
    579     switch (sc->mad_chip_type) {	/* Output password */
    580     case MAD_82C928:
    581     case MAD_OTI601D:
    582 	pwd = M_PASSWD_928;
    583 	break;
    584     case MAD_82C929:
    585 	pwd = M_PASSWD_929;
    586 	break;
    587     case MAD_82C931:
    588 	pwd = M_PASSWD_931;
    589 	break;
    590     default:
    591 	panic("mad_write: Bad chip type=%d\n", sc->mad_chip_type);
    592     }
    593     s = splaudio();
    594     bus_space_write_1(sc->sc_iot, sc->mad_ioh, MC_PASSWD_REG, pwd);
    595     bus_space_write_1(sc->sc_iot, sc->mad_ioh, port, value & 0xff);
    596     splx(s);
    597 }
    598 
    599 void
    600 madattach(sc)
    601     struct wss_softc *sc;
    602 {
    603     unsigned char cs4231_mode;
    604     int joy;
    605 
    606     if (sc->mad_chip_type == MAD_NONE)
    607         return;
    608 
    609     /* Do we want the joystick disabled? */
    610     joy = sc->sc_dev.dv_cfdata->cf_flags & 2 ? MC1_JOYDISABLE : 0;
    611 
    612     /* enable WSS emulation at the I/O port */
    613     mad_write(sc, MC1_PORT, M_WSS_PORT_SELECT(sc->mad_ioindex) | joy);
    614     mad_write(sc, MC2_PORT, 0x03); /* ? */
    615     mad_write(sc, MC3_PORT, 0xf0); /* Disable SB */
    616 
    617     cs4231_mode =
    618 	strncmp(sc->sc_ad1848.chip_name, "CS4248", 6) == 0 ||
    619 	strncmp(sc->sc_ad1848.chip_name, "CS4231", 6) == 0 ? 0x02 : 0;
    620 
    621     if (sc->mad_chip_type == MAD_82C929) {
    622 	mad_write(sc, MC4_PORT, 0x92);
    623 	mad_write(sc, MC5_PORT, 0xA5 | cs4231_mode);
    624 	mad_write(sc, MC6_PORT, 0x03);	/* Disable MPU401 */
    625     } else {
    626 	mad_write(sc, MC4_PORT, 0x02);
    627 	mad_write(sc, MC5_PORT, 0x30 | cs4231_mode);
    628     }
    629 
    630 #ifdef AUDIO_DEBUG
    631     if (wssdebug) {
    632 	int i;
    633 	for (i = MC1_PORT; i <= MC7_PORT; i++)
    634 	    DPRINTF(("port %03x after init = %02x\n", i, mad_read(sc, i)));
    635     }
    636 #endif
    637 }
    638