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cs4231.c revision 1.6
      1 /*	$NetBSD: cs4231.c,v 1.6 2001/11/13 13:14:36 lukem Exp $	*/
      2 
      3 /*-
      4  * Copyright (c) 1998, 1999 The NetBSD Foundation, Inc.
      5  * All rights reserved.
      6  *
      7  * This code is derived from software contributed to The NetBSD Foundation
      8  * by Paul Kranenburg.
      9  *
     10  * Redistribution and use in source and binary forms, with or without
     11  * modification, are permitted provided that the following conditions
     12  * are met:
     13  * 1. Redistributions of source code must retain the above copyright
     14  *    notice, this list of conditions and the following disclaimer.
     15  * 2. Redistributions in binary form must reproduce the above copyright
     16  *    notice, this list of conditions and the following disclaimer in the
     17  *    documentation and/or other materials provided with the distribution.
     18  * 3. All advertising materials mentioning features or use of this software
     19  *    must display the following acknowledgement:
     20  *        This product includes software developed by the NetBSD
     21  *        Foundation, Inc. and its contributors.
     22  * 4. Neither the name of The NetBSD Foundation nor the names of its
     23  *    contributors may be used to endorse or promote products derived
     24  *    from this software without specific prior written permission.
     25  *
     26  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
     27  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
     28  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     29  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
     30  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
     31  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
     32  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
     33  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
     34  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
     35  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
     36  * POSSIBILITY OF SUCH DAMAGE.
     37  */
     38 
     39 #include <sys/cdefs.h>
     40 __KERNEL_RCSID(0, "$NetBSD: cs4231.c,v 1.6 2001/11/13 13:14:36 lukem Exp $");
     41 
     42 #include "audio.h"
     43 #if NAUDIO > 0
     44 
     45 #include <sys/param.h>
     46 #include <sys/systm.h>
     47 #include <sys/errno.h>
     48 #include <sys/device.h>
     49 #include <sys/malloc.h>
     50 
     51 #include <machine/autoconf.h>
     52 #include <machine/cpu.h>
     53 
     54 #include <sys/audioio.h>
     55 #include <dev/audio_if.h>
     56 
     57 #include <dev/ic/ad1848reg.h>
     58 #include <dev/ic/cs4231reg.h>
     59 #include <dev/ic/ad1848var.h>
     60 #include <dev/ic/cs4231var.h>
     61 #include <dev/ic/apcdmareg.h>
     62 
     63 /*---*/
     64 #define CSAUDIO_DAC_LVL		0
     65 #define CSAUDIO_LINE_IN_LVL	1
     66 #define CSAUDIO_MONO_LVL	2
     67 #define CSAUDIO_CD_LVL		3
     68 #define CSAUDIO_MONITOR_LVL	4
     69 #define CSAUDIO_OUT_LVL		5
     70 #define CSAUDIO_LINE_IN_MUTE	6
     71 #define CSAUDIO_DAC_MUTE	7
     72 #define CSAUDIO_CD_MUTE		8
     73 #define CSAUDIO_MONO_MUTE	9
     74 #define CSAUDIO_MONITOR_MUTE	10
     75 #define CSAUDIO_REC_LVL		11
     76 #define CSAUDIO_RECORD_SOURCE	12
     77 
     78 #define CSAUDIO_INPUT_CLASS	13
     79 #define CSAUDIO_OUTPUT_CLASS	14
     80 #define CSAUDIO_RECORD_CLASS	15
     81 #define CSAUDIO_MONITOR_CLASS	16
     82 
     83 #ifdef AUDIO_DEBUG
     84 int     cs4231debug = 0;
     85 #define DPRINTF(x)      if (cs4231debug) printf x
     86 #else
     87 #define DPRINTF(x)
     88 #endif
     89 
     90 struct audio_device cs4231_device = {
     91 	"cs4231",
     92 	"x",
     93 	"audio"
     94 };
     95 
     96 
     97 /*
     98  * Define our interface to the higher level audio driver.
     99  */
    100 int	cs4231_open __P((void *, int));
    101 void	cs4231_close __P((void *));
    102 size_t	cs4231_round_buffersize __P((void *, int, size_t));
    103 int	cs4231_round_blocksize __P((void *, int));
    104 int	cs4231_halt_output __P((void *));
    105 int	cs4231_halt_input __P((void *));
    106 int	cs4231_getdev __P((void *, struct audio_device *));
    107 int	cs4231_set_port __P((void *, mixer_ctrl_t *));
    108 int	cs4231_get_port __P((void *, mixer_ctrl_t *));
    109 int	cs4231_query_devinfo __P((void *, mixer_devinfo_t *));
    110 int	cs4231_get_props __P((void *));
    111 
    112 void   *cs4231_malloc __P((void *, int, size_t, int, int));
    113 void	cs4231_free __P((void *, void *, int));
    114 int	cs4231_trigger_output __P((void *, void *, void *, int,
    115 				   void (*)(void *), void *,
    116 				   struct audio_params *));
    117 int	cs4231_trigger_input __P((void *, void *, void *, int,
    118 				  void (*)(void *), void *,
    119 				  struct audio_params *));
    120 
    121 #ifdef AUDIO_DEBUG
    122 static void	cs4231_regdump __P((char *, struct cs4231_softc *));
    123 #endif
    124 
    125 int
    126 cs4231_read(sc, index)
    127 	struct ad1848_softc	*sc;
    128 	int			index;
    129 {
    130 	return bus_space_read_1(sc->sc_iot, sc->sc_ioh, (index << 2));
    131 }
    132 
    133 void
    134 cs4231_write(sc, index, value)
    135 	struct ad1848_softc	*sc;
    136 	int			index, value;
    137 {
    138 	bus_space_write_1(sc->sc_iot, sc->sc_ioh, (index << 2), value);
    139 }
    140 
    141 struct audio_hw_if audiocs_hw_if = {
    142 	cs4231_open,
    143 	cs4231_close,
    144 	0,
    145 	ad1848_query_encoding,
    146 	ad1848_set_params,
    147 	cs4231_round_blocksize,
    148 	ad1848_commit_settings,
    149 	0,
    150 	0,
    151 	NULL,
    152 	NULL,
    153 	cs4231_halt_output,
    154 	cs4231_halt_input,
    155 	0,
    156 	cs4231_getdev,
    157 	0,
    158 	cs4231_set_port,
    159 	cs4231_get_port,
    160 	cs4231_query_devinfo,
    161 	cs4231_malloc,
    162 	cs4231_free,
    163 	cs4231_round_buffersize,
    164         0,
    165 	cs4231_get_props,
    166 	cs4231_trigger_output,
    167 	cs4231_trigger_input,
    168 	NULL,
    169 };
    170 
    171 
    172 #ifdef AUDIO_DEBUG
    173 static void
    174 cs4231_regdump(label, sc)
    175 	char *label;
    176 	struct cs4231_softc *sc;
    177 {
    178 	char bits[128];
    179 	volatile struct apc_dma *dma = sc->sc_dmareg;
    180 
    181 	printf("cs4231regdump(%s): regs:", label);
    182 	printf("dmapva: 0x%x; ", dma->dmapva);
    183 	printf("dmapc: 0x%x; ", dma->dmapc);
    184 	printf("dmapnva: 0x%x; ", dma->dmapnva);
    185 	printf("dmapnc: 0x%x\n", dma->dmapnc);
    186 	printf("dmacva: 0x%x; ", dma->dmacva);
    187 	printf("dmacc: 0x%x; ", dma->dmacc);
    188 	printf("dmacnva: 0x%x; ", dma->dmacnva);
    189 	printf("dmacnc: 0x%x\n", dma->dmacnc);
    190 
    191 	printf("apc_dmacsr=%s\n",
    192 		bitmask_snprintf(dma->dmacsr, APC_BITS, bits, sizeof(bits)) );
    193 
    194 	ad1848_dump_regs(&sc->sc_ad1848);
    195 }
    196 #endif
    197 
    198 void
    199 cs4231_init(sc)
    200 	struct cs4231_softc *sc;
    201 {
    202 	char *buf;
    203 #if 0
    204 	volatile struct apc_dma *dma = sc->sc_dmareg;
    205 #endif
    206 	int reg;
    207 
    208 #if 0
    209 	dma->dmacsr = APC_CODEC_PDN;
    210 	delay(20);
    211 	dma->dmacsr &= ~APC_CODEC_PDN;
    212 #endif
    213 	/* First, put chip in native mode */
    214 	reg = ad_read(&sc->sc_ad1848, SP_MISC_INFO);
    215 	ad_write(&sc->sc_ad1848, SP_MISC_INFO, reg | MODE2);
    216 
    217 	/* Read version numbers from I25 */
    218 	reg = ad_read(&sc->sc_ad1848, CS_VERSION_ID);
    219 	switch (reg & (CS_VERSION_NUMBER | CS_VERSION_CHIPID)) {
    220 	case 0xa0:
    221 		sc->sc_ad1848.chip_name = "CS4231A";
    222 		break;
    223 	case 0x80:
    224 		sc->sc_ad1848.chip_name = "CS4231";
    225 		break;
    226 	case 0x82:
    227 		sc->sc_ad1848.chip_name = "CS4232";
    228 		break;
    229 	default:
    230 		if ((buf = malloc(32, M_TEMP, M_NOWAIT)) != NULL) {
    231 			sprintf(buf, "unknown rev: %x/%x", reg&0xe, reg&7);
    232 			sc->sc_ad1848.chip_name = buf;
    233 		}
    234 	}
    235 }
    236 
    237 void *
    238 cs4231_malloc(addr, direction, size, pool, flags)
    239 	void *addr;
    240 	int direction;
    241 	size_t size;
    242 	int pool, flags;
    243 {
    244 	struct cs4231_softc *sc = addr;
    245 	bus_dma_tag_t dmatag = sc->sc_dmatag;
    246 	struct cs_dma *p;
    247 
    248 	p = malloc(sizeof(*p), pool, flags);
    249 	if (p == NULL)
    250 		return (NULL);
    251 
    252 	/* Allocate a DMA map */
    253 	if (bus_dmamap_create(dmatag, size, 1, size, 0,
    254 				BUS_DMA_NOWAIT, &p->dmamap) != 0)
    255 		goto fail1;
    256 
    257 	/* Allocate DMA memory */
    258 	p->size = size;
    259 	if (bus_dmamem_alloc(dmatag, size, 64*1024, 0,
    260 				p->segs, sizeof(p->segs)/sizeof(p->segs[0]),
    261 				&p->nsegs, BUS_DMA_NOWAIT) != 0)
    262 		goto fail2;
    263 
    264 	/* Map DMA memory into kernel space */
    265 	if (bus_dmamem_map(dmatag, p->segs, p->nsegs, p->size,
    266 			   &p->addr, BUS_DMA_NOWAIT|BUS_DMA_COHERENT) != 0)
    267 		goto fail3;
    268 
    269 	/* Load the buffer */
    270 	if (bus_dmamap_load(dmatag, p->dmamap,
    271 			    p->addr, size, NULL, BUS_DMA_NOWAIT) != 0)
    272 		goto fail4;
    273 
    274 	p->next = sc->sc_dmas;
    275 	sc->sc_dmas = p;
    276 	return (p->addr);
    277 
    278 fail4:
    279 	bus_dmamem_unmap(dmatag, p->addr, p->size);
    280 fail3:
    281 	bus_dmamem_free(dmatag, p->segs, p->nsegs);
    282 fail2:
    283 	bus_dmamap_destroy(dmatag, p->dmamap);
    284 fail1:
    285 	free(p, pool);
    286 	return (NULL);
    287 }
    288 
    289 void
    290 cs4231_free(addr, ptr, pool)
    291 	void *addr;
    292 	void *ptr;
    293 	int pool;
    294 {
    295 	struct cs4231_softc *sc = addr;
    296 	bus_dma_tag_t dmatag = sc->sc_dmatag;
    297 	struct cs_dma *p, **pp;
    298 
    299 	for (pp = &sc->sc_dmas; (p = *pp) != NULL; pp = &(*pp)->next) {
    300 		if (p->addr != ptr)
    301 			continue;
    302 		bus_dmamap_unload(dmatag, p->dmamap);
    303 		bus_dmamem_unmap(dmatag, p->addr, p->size);
    304 		bus_dmamem_free(dmatag, p->segs, p->nsegs);
    305 		bus_dmamap_destroy(dmatag, p->dmamap);
    306 		*pp = p->next;
    307 		free(p, pool);
    308 		return;
    309 	}
    310 	printf("cs4231_free: rogue pointer\n");
    311 }
    312 
    313 int
    314 cs4231_open(addr, flags)
    315 	void *addr;
    316 	int flags;
    317 {
    318 	struct cs4231_softc *sc = addr;
    319 #if 0
    320 	struct apc_dma *dma = sc->sc_dmareg;
    321 #endif
    322 
    323 	DPRINTF(("sa_open: unit %p\n", sc));
    324 
    325 	if (sc->sc_open)
    326 		return (EBUSY);
    327 	sc->sc_open = 1;
    328 	sc->sc_locked = 0;
    329 	sc->sc_rintr = 0;
    330 	sc->sc_rarg = 0;
    331 	sc->sc_pintr = 0;
    332 	sc->sc_parg = 0;
    333 #if 1
    334 	/*No interrupts from ad1848 */
    335 	ad_write(&sc->sc_ad1848, SP_PIN_CONTROL, 0);
    336 #endif
    337 #if 0
    338 	dma->dmacsr = APC_RESET;
    339 	delay(10);
    340 	dma->dmacsr = 0;
    341 	delay(10);
    342 #endif
    343 	ad1848_reset(&sc->sc_ad1848);
    344 
    345 	DPRINTF(("saopen: ok -> sc=%p\n", sc));
    346 	return (0);
    347 }
    348 
    349 void
    350 cs4231_close(addr)
    351 	void *addr;
    352 {
    353 	struct cs4231_softc *sc = addr;
    354 
    355 	DPRINTF(("sa_close: sc=%p\n", sc));
    356 	/*
    357 	 * halt i/o, clear open flag, and done.
    358 	 */
    359 	cs4231_halt_input(sc);
    360 	cs4231_halt_output(sc);
    361 	sc->sc_open = 0;
    362 
    363 	DPRINTF(("sa_close: closed.\n"));
    364 }
    365 
    366 size_t
    367 cs4231_round_buffersize(addr, direction, size)
    368 	void *addr;
    369 	int direction;
    370 	size_t size;
    371 {
    372 #if 0
    373 	if (size > APC_MAX)
    374 		size = APC_MAX;
    375 #endif
    376 	return (size);
    377 }
    378 
    379 int
    380 cs4231_round_blocksize(addr, blk)
    381 	void *addr;
    382 	int blk;
    383 {
    384 	return (blk & -4);
    385 }
    386 
    387 int
    388 cs4231_getdev(addr, retp)
    389         void *addr;
    390         struct audio_device *retp;
    391 {
    392         *retp = cs4231_device;
    393         return (0);
    394 }
    395 
    396 static ad1848_devmap_t csmapping[] = {
    397 	{ CSAUDIO_DAC_LVL, AD1848_KIND_LVL, AD1848_AUX1_CHANNEL },
    398 	{ CSAUDIO_LINE_IN_LVL, AD1848_KIND_LVL, AD1848_LINE_CHANNEL },
    399 	{ CSAUDIO_MONO_LVL, AD1848_KIND_LVL, AD1848_MONO_CHANNEL },
    400 	{ CSAUDIO_CD_LVL, AD1848_KIND_LVL, AD1848_AUX2_CHANNEL },
    401 	{ CSAUDIO_MONITOR_LVL, AD1848_KIND_LVL, AD1848_MONITOR_CHANNEL },
    402 	{ CSAUDIO_OUT_LVL, AD1848_KIND_LVL, AD1848_DAC_CHANNEL },
    403 	{ CSAUDIO_DAC_MUTE, AD1848_KIND_MUTE, AD1848_AUX1_CHANNEL },
    404 	{ CSAUDIO_LINE_IN_MUTE, AD1848_KIND_MUTE, AD1848_LINE_CHANNEL },
    405 	{ CSAUDIO_MONO_MUTE, AD1848_KIND_MUTE, AD1848_MONO_CHANNEL },
    406 	{ CSAUDIO_CD_MUTE, AD1848_KIND_MUTE, AD1848_AUX2_CHANNEL },
    407 	{ CSAUDIO_MONITOR_MUTE, AD1848_KIND_MUTE, AD1848_MONITOR_CHANNEL },
    408 	{ CSAUDIO_REC_LVL, AD1848_KIND_RECORDGAIN, -1 },
    409 	{ CSAUDIO_RECORD_SOURCE, AD1848_KIND_RECORDSOURCE, -1 }
    410 };
    411 
    412 static int nummap = sizeof(csmapping) / sizeof(csmapping[0]);
    413 
    414 
    415 int
    416 cs4231_set_port(addr, cp)
    417 	void *addr;
    418 	mixer_ctrl_t *cp;
    419 {
    420 	struct ad1848_softc *ac = addr;
    421 
    422 	DPRINTF(("cs4231_set_port: port=%d", cp->dev));
    423 	return (ad1848_mixer_set_port(ac, csmapping, nummap, cp));
    424 }
    425 
    426 int
    427 cs4231_get_port(addr, cp)
    428 	void *addr;
    429 	mixer_ctrl_t *cp;
    430 {
    431 	struct ad1848_softc *ac = addr;
    432 
    433 	DPRINTF(("cs4231_get_port: port=%d", cp->dev));
    434 	return (ad1848_mixer_get_port(ac, csmapping, nummap, cp));
    435 }
    436 
    437 int
    438 cs4231_get_props(addr)
    439 	void *addr;
    440 {
    441 	return (AUDIO_PROP_FULLDUPLEX);
    442 }
    443 
    444 int
    445 cs4231_query_devinfo(addr, dip)
    446 	void *addr;
    447 	mixer_devinfo_t *dip;
    448 {
    449 
    450 	switch(dip->index) {
    451 #if 0
    452 	case CSAUDIO_MIC_IN_LVL:	/* Microphone */
    453 		dip->type = AUDIO_MIXER_VALUE;
    454 		dip->mixer_class = CSAUDIO_INPUT_CLASS;
    455 		dip->prev = AUDIO_MIXER_LAST;
    456 		dip->next = CSAUDIO_MIC_IN_MUTE;
    457 		strcpy(dip->label.name, AudioNmicrophone);
    458 		dip->un.v.num_channels = 2;
    459 		strcpy(dip->un.v.units.name, AudioNvolume);
    460 		break;
    461 #endif
    462 
    463 	case CSAUDIO_MONO_LVL:	/* mono/microphone mixer */
    464 		dip->type = AUDIO_MIXER_VALUE;
    465 		dip->mixer_class = CSAUDIO_INPUT_CLASS;
    466 		dip->prev = AUDIO_MIXER_LAST;
    467 		dip->next = CSAUDIO_MONO_MUTE;
    468 		strcpy(dip->label.name, AudioNmicrophone);
    469 		dip->un.v.num_channels = 1;
    470 		strcpy(dip->un.v.units.name, AudioNvolume);
    471 		break;
    472 
    473 	case CSAUDIO_DAC_LVL:		/*  dacout */
    474 		dip->type = AUDIO_MIXER_VALUE;
    475 		dip->mixer_class = CSAUDIO_INPUT_CLASS;
    476 		dip->prev = AUDIO_MIXER_LAST;
    477 		dip->next = CSAUDIO_DAC_MUTE;
    478 		strcpy(dip->label.name, AudioNdac);
    479 		dip->un.v.num_channels = 2;
    480 		strcpy(dip->un.v.units.name, AudioNvolume);
    481 		break;
    482 
    483 	case CSAUDIO_LINE_IN_LVL:	/* line */
    484 		dip->type = AUDIO_MIXER_VALUE;
    485 		dip->mixer_class = CSAUDIO_INPUT_CLASS;
    486 		dip->prev = AUDIO_MIXER_LAST;
    487 		dip->next = CSAUDIO_LINE_IN_MUTE;
    488 		strcpy(dip->label.name, AudioNline);
    489 		dip->un.v.num_channels = 2;
    490 		strcpy(dip->un.v.units.name, AudioNvolume);
    491 		break;
    492 
    493 	case CSAUDIO_CD_LVL:		/* cd */
    494 		dip->type = AUDIO_MIXER_VALUE;
    495 		dip->mixer_class = CSAUDIO_INPUT_CLASS;
    496 		dip->prev = AUDIO_MIXER_LAST;
    497 		dip->next = CSAUDIO_CD_MUTE;
    498 		strcpy(dip->label.name, AudioNcd);
    499 		dip->un.v.num_channels = 2;
    500 		strcpy(dip->un.v.units.name, AudioNvolume);
    501 		break;
    502 
    503 
    504 	case CSAUDIO_MONITOR_LVL:	/* monitor level */
    505 		dip->type = AUDIO_MIXER_VALUE;
    506 		dip->mixer_class = CSAUDIO_MONITOR_CLASS;
    507 		dip->next = CSAUDIO_MONITOR_MUTE;
    508 		dip->prev = AUDIO_MIXER_LAST;
    509 		strcpy(dip->label.name, AudioNmonitor);
    510 		dip->un.v.num_channels = 1;
    511 		strcpy(dip->un.v.units.name, AudioNvolume);
    512 		break;
    513 
    514 	case CSAUDIO_OUT_LVL:		/* cs4231 output volume: not useful? */
    515 		dip->type = AUDIO_MIXER_VALUE;
    516 		dip->mixer_class = CSAUDIO_MONITOR_CLASS;
    517 		dip->prev = dip->next = AUDIO_MIXER_LAST;
    518 		strcpy(dip->label.name, AudioNoutput);
    519 		dip->un.v.num_channels = 2;
    520 		strcpy(dip->un.v.units.name, AudioNvolume);
    521 		break;
    522 
    523 	case CSAUDIO_LINE_IN_MUTE:
    524 		dip->mixer_class = CSAUDIO_INPUT_CLASS;
    525 		dip->type = AUDIO_MIXER_ENUM;
    526 		dip->prev = CSAUDIO_LINE_IN_LVL;
    527 		dip->next = AUDIO_MIXER_LAST;
    528 		goto mute;
    529 
    530 	case CSAUDIO_DAC_MUTE:
    531 		dip->mixer_class = CSAUDIO_INPUT_CLASS;
    532 		dip->type = AUDIO_MIXER_ENUM;
    533 		dip->prev = CSAUDIO_DAC_LVL;
    534 		dip->next = AUDIO_MIXER_LAST;
    535 		goto mute;
    536 
    537 	case CSAUDIO_CD_MUTE:
    538 		dip->mixer_class = CSAUDIO_INPUT_CLASS;
    539 		dip->type = AUDIO_MIXER_ENUM;
    540 		dip->prev = CSAUDIO_CD_LVL;
    541 		dip->next = AUDIO_MIXER_LAST;
    542 		goto mute;
    543 
    544 	case CSAUDIO_MONO_MUTE:
    545 		dip->mixer_class = CSAUDIO_INPUT_CLASS;
    546 		dip->type = AUDIO_MIXER_ENUM;
    547 		dip->prev = CSAUDIO_MONO_LVL;
    548 		dip->next = AUDIO_MIXER_LAST;
    549 		goto mute;
    550 
    551 	case CSAUDIO_MONITOR_MUTE:
    552 		dip->mixer_class = CSAUDIO_OUTPUT_CLASS;
    553 		dip->type = AUDIO_MIXER_ENUM;
    554 		dip->prev = CSAUDIO_MONITOR_LVL;
    555 		dip->next = AUDIO_MIXER_LAST;
    556 	mute:
    557 		strcpy(dip->label.name, AudioNmute);
    558 		dip->un.e.num_mem = 2;
    559 		strcpy(dip->un.e.member[0].label.name, AudioNoff);
    560 		dip->un.e.member[0].ord = 0;
    561 		strcpy(dip->un.e.member[1].label.name, AudioNon);
    562 		dip->un.e.member[1].ord = 1;
    563 		break;
    564 
    565 	case CSAUDIO_REC_LVL:	/* record level */
    566 		dip->type = AUDIO_MIXER_VALUE;
    567 		dip->mixer_class = CSAUDIO_RECORD_CLASS;
    568 		dip->prev = AUDIO_MIXER_LAST;
    569 		dip->next = CSAUDIO_RECORD_SOURCE;
    570 		strcpy(dip->label.name, AudioNrecord);
    571 		dip->un.v.num_channels = 2;
    572 		strcpy(dip->un.v.units.name, AudioNvolume);
    573 		break;
    574 
    575 	case CSAUDIO_RECORD_SOURCE:
    576 		dip->mixer_class = CSAUDIO_RECORD_CLASS;
    577 		dip->type = AUDIO_MIXER_ENUM;
    578 		dip->prev = CSAUDIO_REC_LVL;
    579 		dip->next = AUDIO_MIXER_LAST;
    580 		strcpy(dip->label.name, AudioNsource);
    581 		dip->un.e.num_mem = 4;
    582 		strcpy(dip->un.e.member[0].label.name, AudioNoutput);
    583 		dip->un.e.member[0].ord = DAC_IN_PORT;
    584 		strcpy(dip->un.e.member[1].label.name, AudioNmicrophone);
    585 		dip->un.e.member[1].ord = MIC_IN_PORT;
    586 		strcpy(dip->un.e.member[2].label.name, AudioNdac);
    587 		dip->un.e.member[2].ord = AUX1_IN_PORT;
    588 		strcpy(dip->un.e.member[3].label.name, AudioNline);
    589 		dip->un.e.member[3].ord = LINE_IN_PORT;
    590 		break;
    591 
    592 	case CSAUDIO_INPUT_CLASS:		/* input class descriptor */
    593 		dip->type = AUDIO_MIXER_CLASS;
    594 		dip->mixer_class = CSAUDIO_INPUT_CLASS;
    595 		dip->next = dip->prev = AUDIO_MIXER_LAST;
    596 		strcpy(dip->label.name, AudioCinputs);
    597 		break;
    598 
    599 	case CSAUDIO_OUTPUT_CLASS:		/* output class descriptor */
    600 		dip->type = AUDIO_MIXER_CLASS;
    601 		dip->mixer_class = CSAUDIO_OUTPUT_CLASS;
    602 		dip->next = dip->prev = AUDIO_MIXER_LAST;
    603 		strcpy(dip->label.name, AudioCoutputs);
    604 		break;
    605 
    606 	case CSAUDIO_MONITOR_CLASS:		/* monitor class descriptor */
    607 		dip->type = AUDIO_MIXER_CLASS;
    608 		dip->mixer_class = CSAUDIO_MONITOR_CLASS;
    609 		dip->next = dip->prev = AUDIO_MIXER_LAST;
    610 		strcpy(dip->label.name, AudioCmonitor);
    611 		break;
    612 
    613 	case CSAUDIO_RECORD_CLASS:		/* record source class */
    614 		dip->type = AUDIO_MIXER_CLASS;
    615 		dip->mixer_class = CSAUDIO_RECORD_CLASS;
    616 		dip->next = dip->prev = AUDIO_MIXER_LAST;
    617 		strcpy(dip->label.name, AudioCrecord);
    618 		break;
    619 
    620 	default:
    621 		return ENXIO;
    622 		/*NOTREACHED*/
    623 	}
    624 	DPRINTF(("AUDIO_MIXER_DEVINFO: name=%s\n", dip->label.name));
    625 
    626 	return (0);
    627 }
    628 
    629 int
    630 cs4231_trigger_output(addr, start, end, blksize, intr, arg, param)
    631 	void *addr;
    632 	void *start, *end;
    633 	int blksize;
    634 	void (*intr) __P((void *));
    635 	void *arg;
    636 	struct audio_params *param;
    637 {
    638 	struct cs4231_softc *sc = addr;
    639 	struct cs_dma *p;
    640 	volatile struct apc_dma *dma = sc->sc_dmareg;
    641 	int csr;
    642 	vsize_t n;
    643 
    644 	if (sc->sc_locked != 0) {
    645 		printf("cs4231_trigger_output: already running\n");
    646 		return (EINVAL);
    647 	}
    648 
    649 	sc->sc_locked = 1;
    650 	sc->sc_pintr = intr;
    651 	sc->sc_parg = arg;
    652 
    653 	for (p = sc->sc_dmas; p != NULL && p->addr != start; p = p->next)
    654 		/*void*/;
    655 	if (p == NULL) {
    656 		printf("cs4231_trigger_output: bad addr %p\n", start);
    657 		return (EINVAL);
    658 	}
    659 
    660 	n = (char *)end - (char *)start;
    661 
    662 	/* XXX
    663 	 * Do only `blksize' at a time, so audio_pint() is kept
    664 	 * synchronous with us...
    665 	 */
    666 	/*XXX*/sc->sc_blksz = blksize;
    667 	/*XXX*/sc->sc_nowplaying = p;
    668 	/*XXX*/sc->sc_playsegsz = n;
    669 
    670 	if (n > APC_MAX)
    671 		n = APC_MAX;
    672 
    673 	sc->sc_playcnt = n;
    674 
    675 	DPRINTF(("trigger_out: start %p, end %p, size %lu; "
    676 		 "dmaaddr 0x%lx, dmacnt %lu, segsize %lu\n",
    677 		 start, end, (u_long)sc->sc_playsegsz,
    678 		 (u_long)p->dmamap->dm_segs[0].ds_addr,
    679 		 (u_long)n, (u_long)p->size));
    680 
    681 	csr = dma->dmacsr;
    682 	dma->dmapnva = (u_long)p->dmamap->dm_segs[0].ds_addr;
    683 	dma->dmapnc = (u_long)n;
    684 	if ((csr & PDMA_GO) == 0 || (csr & APC_PPAUSE) != 0) {
    685 		int reg;
    686 
    687 		dma->dmacsr &= ~(APC_PIE|APC_PPAUSE);
    688 		dma->dmacsr |= APC_EI|APC_IE|APC_PIE|APC_EIE|APC_PMIE|PDMA_GO;
    689 
    690 		/* Start chip */
    691 
    692 		/* Probably should just ignore this.. */
    693 		ad_write(&sc->sc_ad1848, SP_LOWER_BASE_COUNT, 0xff);
    694 		ad_write(&sc->sc_ad1848, SP_UPPER_BASE_COUNT, 0xff);
    695 
    696 		reg = ad_read(&sc->sc_ad1848, SP_INTERFACE_CONFIG);
    697 		ad_write(&sc->sc_ad1848, SP_INTERFACE_CONFIG,
    698 			 (PLAYBACK_ENABLE|reg));
    699 	}
    700 
    701 	return (0);
    702 }
    703 
    704 int
    705 cs4231_trigger_input(addr, start, end, blksize, intr, arg, param)
    706 	void *addr;
    707 	void *start, *end;
    708 	int blksize;
    709 	void (*intr) __P((void *));
    710 	void *arg;
    711 	struct audio_params *param;
    712 {
    713 	return (ENXIO);
    714 }
    715 
    716 int
    717 cs4231_halt_output(addr)
    718 	void *addr;
    719 {
    720 	struct cs4231_softc *sc = addr;
    721 	volatile struct apc_dma *dma = sc->sc_dmareg;
    722 	int reg;
    723 
    724 	dma->dmacsr &= ~(APC_EI | APC_IE | APC_PIE | APC_EIE | PDMA_GO | APC_PMIE);
    725 	reg = ad_read(&sc->sc_ad1848, SP_INTERFACE_CONFIG);
    726 	ad_write(&sc->sc_ad1848, SP_INTERFACE_CONFIG, (reg & ~PLAYBACK_ENABLE));
    727 	sc->sc_locked = 0;
    728 
    729 	return (0);
    730 }
    731 
    732 int
    733 cs4231_halt_input(addr)
    734 	void *addr;
    735 {
    736 	struct cs4231_softc *sc = addr;
    737 	int reg;
    738 
    739 	reg = ad_read(&sc->sc_ad1848, SP_INTERFACE_CONFIG);
    740 	ad_write(&sc->sc_ad1848, SP_INTERFACE_CONFIG, (reg & ~CAPTURE_ENABLE));
    741 	sc->sc_locked = 0;
    742 
    743 	return (0);
    744 }
    745 
    746 
    747 int
    748 cs4231_intr(arg)
    749 	void *arg;
    750 {
    751 	struct cs4231_softc *sc = arg;
    752 	volatile struct apc_dma *dma = sc->sc_dmareg;
    753 	struct cs_dma *p;
    754 	int ret = 0;
    755 	int csr;
    756 	int reg, status;
    757 #if defined(DEBUG) || defined(AUDIO_DEBUG)
    758 	char bits[128];
    759 #endif
    760 
    761 #ifdef AUDIO_DEBUG
    762 	if (cs4231debug > 1)
    763 		cs4231_regdump("audiointr", sc);
    764 #endif
    765 
    766 	/* Read DMA status */
    767 	csr = dma->dmacsr;
    768 	DPRINTF((
    769 	    "intr: csr=%s; dmapva=0x%lx,dmapc=%lu;dmapnva=0x%lx,dmapnc=%lu\n",
    770 		bitmask_snprintf(csr, APC_BITS, bits, sizeof(bits)),
    771 		(u_long)dma->dmapva, (u_long)dma->dmapc,
    772 		(u_long)dma->dmapnva, (u_long)dma->dmapnc));
    773 
    774 	status = ADREAD(&sc->sc_ad1848, AD1848_STATUS);
    775 	DPRINTF(("%s: status: %s\n", sc->sc_ad1848.sc_dev.dv_xname,
    776 		bitmask_snprintf(status, AD_R2_BITS, bits, sizeof(bits))));
    777 	if (status & (INTERRUPT_STATUS | SAMPLE_ERROR)) {
    778 		reg = ad_read(&sc->sc_ad1848, CS_IRQ_STATUS);
    779 		DPRINTF(("%s: i24: %s\n", sc->sc_ad1848.sc_dev.dv_xname,
    780 		       bitmask_snprintf(reg, CS_I24_BITS, bits, sizeof(bits))));
    781 
    782 		if (reg & CS_IRQ_PI) {
    783 			ad_write(&sc->sc_ad1848, SP_LOWER_BASE_COUNT, 0xff);
    784 			ad_write(&sc->sc_ad1848, SP_UPPER_BASE_COUNT, 0xff);
    785 		}
    786 		/* Clear interrupt bit */
    787 		ADWRITE(&sc->sc_ad1848, AD1848_STATUS, 0);
    788 	}
    789 
    790 	/* Write back DMA status (clears interrupt) */
    791 	dma->dmacsr = csr;
    792 
    793 	/*
    794 	 * Simplistic.. if "play emtpy" is set advance to next chunk.
    795 	 */
    796 #if 1
    797 	/* Ack all play interrupts*/
    798 	if ((csr & (APC_PI|APC_PD|APC_PIE|APC_PMI)) != 0)
    799 		ret = 1;
    800 #endif
    801 	if (csr & APC_PM) {
    802 		u_long nextaddr, togo;
    803 
    804 		p = sc->sc_nowplaying;
    805 
    806 		togo = sc->sc_playsegsz - sc->sc_playcnt;
    807 		if (togo == 0) {
    808 			/* Roll over */
    809 			nextaddr = (u_long)p->dmamap->dm_segs[0].ds_addr;
    810 			sc->sc_playcnt = togo = APC_MAX;
    811 		} else {
    812 			nextaddr = dma->dmapnva + APC_MAX;
    813 			if (togo > APC_MAX)
    814 				togo = APC_MAX;
    815 			sc->sc_playcnt += togo;
    816 		}
    817 
    818 		dma->dmapnva = nextaddr;
    819 		dma->dmapnc = togo;
    820 
    821 		if (sc->sc_pintr != NULL)
    822 			(*sc->sc_pintr)(sc->sc_parg);
    823 
    824 		ret = 1;
    825 	}
    826 
    827 	if (csr & APC_CI) {
    828 		if (sc->sc_rintr != NULL) {
    829 			ret = 1;
    830 			(*sc->sc_rintr)(sc->sc_rarg);
    831 		}
    832 	}
    833 
    834 #ifdef DEBUG
    835 if (ret == 0) {
    836 	printf(
    837 	    "oops: csr=%s; dmapva=0x%lx,dmapc=%lu;dmapnva=0x%lx,dmapnc=%lu\n",
    838 		bitmask_snprintf(csr, APC_BITS, bits, sizeof(bits)),
    839 		(u_long)dma->dmapva, (u_long)dma->dmapc,
    840 		(u_long)dma->dmapnva, (u_long)dma->dmapnc);
    841 	ret = 1;
    842 }
    843 #endif
    844 
    845 	return (ret);
    846 }
    847 #endif /* NAUDIO > 0 */
    848