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awacs.c revision 1.3.2.2
      1 /*	$NetBSD: awacs.c,v 1.3.2.2 2001/02/04 20:22:48 he Exp $	*/
      2 
      3 /*-
      4  * Copyright (c) 2000 Tsubai Masanari.  All rights reserved.
      5  *
      6  * Redistribution and use in source and binary forms, with or without
      7  * modification, are permitted provided that the following conditions
      8  * are met:
      9  * 1. Redistributions of source code must retain the above copyright
     10  *    notice, this list of conditions and the following disclaimer.
     11  * 2. Redistributions in binary form must reproduce the above copyright
     12  *    notice, this list of conditions and the following disclaimer in the
     13  *    documentation and/or other materials provided with the distribution.
     14  * 3. The name of the author may not be used to endorse or promote products
     15  *    derived from this software without specific prior written permission.
     16  *
     17  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
     18  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
     19  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
     20  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
     21  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
     22  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
     23  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
     24  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
     25  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
     26  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     27  */
     28 
     29 #include <sys/param.h>
     30 #include <sys/audioio.h>
     31 #include <sys/device.h>
     32 #include <sys/malloc.h>
     33 #include <sys/systm.h>
     34 
     35 #include <dev/auconv.h>
     36 #include <dev/audio_if.h>
     37 #include <dev/mulaw.h>
     38 
     39 #include <uvm/uvm_extern.h>
     40 
     41 #include <machine/autoconf.h>
     42 #include <machine/pio.h>
     43 #include <macppc/dev/dbdma.h>
     44 
     45 #ifdef AWACS_DEBUG
     46 # define DPRINTF printf
     47 #else
     48 # define DPRINTF while (0) printf
     49 #endif
     50 
     51 struct awacs_softc {
     52 	struct device sc_dev;
     53 
     54 	void (*sc_ointr)(void *);	/* dma completion intr handler */
     55 	void *sc_oarg;			/* arg for sc_ointr() */
     56 	int sc_opages;			/* # of output pages */
     57 
     58 	void (*sc_iintr)(void *);	/* dma completion intr handler */
     59 	void *sc_iarg;			/* arg for sc_iintr() */
     60 
     61 	u_int sc_record_source;		/* recording source mask */
     62 	u_int sc_output_mask;		/* output source mask */
     63 
     64 	char *sc_reg;
     65 	u_int sc_codecctl0;
     66 	u_int sc_codecctl1;
     67 	u_int sc_codecctl2;
     68 	u_int sc_codecctl4;
     69 	u_int sc_soundctl;
     70 
     71 	struct dbdma_regmap *sc_odma;
     72 	struct dbdma_regmap *sc_idma;
     73 	struct dbdma_command *sc_odmacmd;
     74 	struct dbdma_command *sc_idmacmd;
     75 };
     76 
     77 int awacs_match(struct device *, struct cfdata *, void *);
     78 void awacs_attach(struct device *, struct device *, void *);
     79 int awacs_intr(void *);
     80 
     81 int awacs_open(void *, int);
     82 void awacs_close(void *);
     83 int awacs_query_encoding(void *, struct audio_encoding *);
     84 int awacs_set_params(void *, int, int, struct audio_params *,
     85 			 struct audio_params *);
     86 int awacs_round_blocksize(void *, int);
     87 int awacs_trigger_output(void *, void *, void *, int, void (*)(void *),
     88 			     void *, struct audio_params *);
     89 int awacs_trigger_input(void *, void *, void *, int, void (*)(void *),
     90 			    void *, struct audio_params *);
     91 int awacs_halt_output(void *);
     92 int awacs_halt_input(void *);
     93 int awacs_getdev(void *, struct audio_device *);
     94 int awacs_set_port(void *, mixer_ctrl_t *);
     95 int awacs_get_port(void *, mixer_ctrl_t *);
     96 int awacs_query_devinfo(void *, mixer_devinfo_t *);
     97 size_t awacs_round_buffersize(void *, int, size_t);
     98 paddr_t awacs_mappage(void *, void *, off_t, int);
     99 int awacs_get_props(void *);
    100 
    101 static inline u_int awacs_read_reg(struct awacs_softc *, int);
    102 static inline void awacs_write_reg(struct awacs_softc *, int, int);
    103 void awacs_write_codec(struct awacs_softc *, int);
    104 void awacs_set_speaker_volume(struct awacs_softc *, int, int);
    105 void awacs_set_ext_volume(struct awacs_softc *, int, int);
    106 int awacs_set_rate(struct awacs_softc *, int);
    107 
    108 struct cfattach awacs_ca = {
    109 	sizeof(struct awacs_softc), awacs_match, awacs_attach
    110 };
    111 
    112 struct audio_hw_if awacs_hw_if = {
    113 	awacs_open,
    114 	awacs_close,
    115 	NULL,
    116 	awacs_query_encoding,
    117 	awacs_set_params,
    118 	awacs_round_blocksize,
    119 	NULL,
    120 	NULL,
    121 	NULL,
    122 	NULL,
    123 	NULL,
    124 	awacs_halt_output,
    125 	awacs_halt_input,
    126 	NULL,
    127 	awacs_getdev,
    128 	NULL,
    129 	awacs_set_port,
    130 	awacs_get_port,
    131 	awacs_query_devinfo,
    132 	NULL,
    133 	NULL,
    134 	awacs_round_buffersize,
    135 	awacs_mappage,
    136 	awacs_get_props,
    137 	awacs_trigger_output,
    138 	awacs_trigger_input,
    139 };
    140 
    141 struct audio_device awacs_device = {
    142 	"AWACS",
    143 	"",
    144 	"awacs"
    145 };
    146 
    147 /* register offset */
    148 #define AWACS_SOUND_CTRL	0x00
    149 #define AWACS_CODEC_CTRL	0x10
    150 #define AWACS_CODEC_STATUS	0x20
    151 #define AWACS_CLIP_COUNT	0x30
    152 #define AWACS_BYTE_SWAP		0x40
    153 
    154 /* sound control */
    155 #define AWACS_INPUT_SUBFRAME0	0x00000001
    156 #define AWACS_INPUT_SUBFRAME1	0x00000002
    157 #define AWACS_INPUT_SUBFRAME2	0x00000004
    158 #define AWACS_INPUT_SUBFRAME3	0x00000008
    159 
    160 #define AWACS_OUTPUT_SUBFRAME0	0x00000010
    161 #define AWACS_OUTPUT_SUBFRAME1	0x00000020
    162 #define AWACS_OUTPUT_SUBFRAME2	0x00000040
    163 #define AWACS_OUTPUT_SUBFRAME3	0x00000080
    164 
    165 #define AWACS_RATE_44100	0x00000000
    166 #define AWACS_RATE_29400	0x00000100
    167 #define AWACS_RATE_22050	0x00000200
    168 #define AWACS_RATE_17640	0x00000300
    169 #define AWACS_RATE_14700	0x00000400
    170 #define AWACS_RATE_11025	0x00000500
    171 #define AWACS_RATE_8820		0x00000600
    172 #define AWACS_RATE_7350		0x00000700
    173 #define AWACS_RATE_MASK		0x00000700
    174 
    175 /* codec control */
    176 #define AWACS_CODEC_ADDR0	0x00000000
    177 #define AWACS_CODEC_ADDR1	0x00001000
    178 #define AWACS_CODEC_ADDR2	0x00002000
    179 #define AWACS_CODEC_ADDR4	0x00004000
    180 #define AWACS_CODEC_EMSEL0	0x00000000
    181 #define AWACS_CODEC_EMSEL1	0x00400000
    182 #define AWACS_CODEC_EMSEL2	0x00800000
    183 #define AWACS_CODEC_EMSEL4	0x00c00000
    184 #define AWACS_CODEC_BUSY	0x01000000
    185 
    186 /* cc0 */
    187 #define AWACS_DEFAULT_CD_GAIN	0x000000bb
    188 #define AWACS_INPUT_CD		0x00000200
    189 #define AWACS_INPUT_MIC		0x00000400
    190 #define AWACS_INPUT_MASK	0x00000e00
    191 
    192 /* cc1 */
    193 #define AWACS_MUTE_SPEAKER	0x00000080
    194 #define AWACS_MUTE_HEADPHONE	0x00000200
    195 
    196 int
    197 awacs_match(parent, match, aux)
    198 	struct device *parent;
    199 	struct cfdata *match;
    200 	void *aux;
    201 {
    202 	struct confargs *ca = aux;
    203 
    204 	if (strcmp(ca->ca_name, "awacs") != 0 &&
    205 	    strcmp(ca->ca_name, "davbus") != 0)
    206 		return 0;
    207 
    208 	if (ca->ca_nreg < 24 || ca->ca_nintr < 12)
    209 		return 0;
    210 
    211 	return 1;
    212 }
    213 
    214 void
    215 awacs_attach(parent, self, aux)
    216 	struct device *parent;
    217 	struct device *self;
    218 	void *aux;
    219 {
    220 	struct awacs_softc *sc = (struct awacs_softc *)self;
    221 	struct confargs *ca = aux;
    222 
    223 	ca->ca_reg[0] += ca->ca_baseaddr;
    224 	ca->ca_reg[2] += ca->ca_baseaddr;
    225 	ca->ca_reg[4] += ca->ca_baseaddr;
    226 
    227 	sc->sc_reg = mapiodev(ca->ca_reg[0], ca->ca_reg[1]);
    228 
    229 	sc->sc_odma = mapiodev(ca->ca_reg[2], ca->ca_reg[3]); /* out */
    230 	sc->sc_idma = mapiodev(ca->ca_reg[4], ca->ca_reg[5]); /* in */
    231 	sc->sc_odmacmd = dbdma_alloc(20 * sizeof(struct dbdma_command));
    232 	sc->sc_idmacmd = dbdma_alloc(20 * sizeof(struct dbdma_command));
    233 
    234 	intr_establish(ca->ca_intr[0], IST_LEVEL, IPL_AUDIO, awacs_intr, sc);
    235 	intr_establish(ca->ca_intr[1], IST_LEVEL, IPL_AUDIO, awacs_intr, sc);
    236 	intr_establish(ca->ca_intr[2], IST_LEVEL, IPL_AUDIO, awacs_intr, sc);
    237 
    238 	printf(": irq %d,%d,%d\n",
    239 		ca->ca_intr[0], ca->ca_intr[1], ca->ca_intr[2]);
    240 
    241 	sc->sc_soundctl = AWACS_INPUT_SUBFRAME0 | AWACS_OUTPUT_SUBFRAME0 |
    242 		AWACS_RATE_44100;
    243 	awacs_write_reg(sc, AWACS_SOUND_CTRL, sc->sc_soundctl);
    244 
    245 	sc->sc_codecctl0 = AWACS_CODEC_ADDR0 | AWACS_CODEC_EMSEL0;
    246 	sc->sc_codecctl1 = AWACS_CODEC_ADDR1 | AWACS_CODEC_EMSEL0;
    247 	sc->sc_codecctl2 = AWACS_CODEC_ADDR2 | AWACS_CODEC_EMSEL0;
    248 	sc->sc_codecctl4 = AWACS_CODEC_ADDR4 | AWACS_CODEC_EMSEL0;
    249 
    250 	sc->sc_codecctl0 |= AWACS_INPUT_CD | AWACS_DEFAULT_CD_GAIN;
    251 	awacs_write_codec(sc, sc->sc_codecctl0);
    252 
    253 	/* Set initial volume[s] */
    254 	awacs_set_speaker_volume(sc, 80, 80);
    255 
    256 	/* Set loopback (for CD?) */
    257 	sc->sc_codecctl1 |= 0x440;
    258 	awacs_write_codec(sc, sc->sc_codecctl1);
    259 
    260 	sc->sc_output_mask = 1 << 0;
    261 
    262 	sc->sc_codecctl1 &= ~AWACS_MUTE_SPEAKER;
    263 	sc->sc_codecctl1 |= AWACS_MUTE_HEADPHONE;
    264 	awacs_write_codec(sc, sc->sc_codecctl1);
    265 
    266 	/* Enable interrupts and looping mode. */
    267 	/* XXX ... */
    268 
    269 	audio_attach_mi(&awacs_hw_if, sc, &sc->sc_dev);
    270 }
    271 
    272 u_int
    273 awacs_read_reg(sc, reg)
    274 	struct awacs_softc *sc;
    275 	int reg;
    276 {
    277 	char *addr = sc->sc_reg;
    278 
    279 	return in32rb(addr + reg);
    280 }
    281 
    282 void
    283 awacs_write_reg(sc, reg, val)
    284 	struct awacs_softc *sc;
    285 	int reg, val;
    286 {
    287 	char *addr = sc->sc_reg;
    288 
    289 	out32rb(addr + reg, val);
    290 }
    291 
    292 void
    293 awacs_write_codec(sc, value)
    294 	struct awacs_softc *sc;
    295 	int value;
    296 {
    297 	awacs_write_reg(sc, AWACS_CODEC_CTRL, value);
    298 	while (awacs_read_reg(sc, AWACS_CODEC_CTRL) & AWACS_CODEC_BUSY);
    299 }
    300 
    301 int
    302 awacs_intr(v)
    303 	void *v;
    304 {
    305 	struct awacs_softc *sc = v;
    306 	struct dbdma_command *cmd = sc->sc_odmacmd;
    307 	int count = sc->sc_opages;
    308 	int status;
    309 
    310 	/* Fill used buffer(s). */
    311 	while (count-- > 0) {
    312 		/* if DBDMA_INT_ALWAYS */
    313 		if (in16rb(&cmd->d_command) & 0x30) {	/* XXX */
    314 			status = in16rb(&cmd->d_status);
    315 			cmd->d_status = 0;
    316 			if (status)	/* status == 0x8400 */
    317 				if (sc->sc_ointr)
    318 					(*sc->sc_ointr)(sc->sc_oarg);
    319 		}
    320 		cmd++;
    321 	}
    322 
    323 	return 1;
    324 }
    325 
    326 int
    327 awacs_open(h, flags)
    328 	void *h;
    329 	int flags;
    330 {
    331 	return 0;
    332 }
    333 
    334 /*
    335  * Close function is called at splaudio().
    336  */
    337 void
    338 awacs_close(h)
    339 	void *h;
    340 {
    341 	struct awacs_softc *sc = h;
    342 
    343 	awacs_halt_output(sc);
    344 	awacs_halt_input(sc);
    345 
    346 	sc->sc_ointr = 0;
    347 	sc->sc_iintr = 0;
    348 }
    349 
    350 int
    351 awacs_query_encoding(h, ae)
    352 	void *h;
    353 	struct audio_encoding *ae;
    354 {
    355 	switch (ae->index) {
    356 	case 0:
    357 		strcpy(ae->name, AudioEslinear);
    358 		ae->encoding = AUDIO_ENCODING_SLINEAR;
    359 		ae->precision = 16;
    360 		ae->flags = 0;
    361 		return 0;
    362 	case 1:
    363 		strcpy(ae->name, AudioEslinear_be);
    364 		ae->encoding = AUDIO_ENCODING_SLINEAR_BE;
    365 		ae->precision = 16;
    366 		ae->flags = 0;
    367 		return 0;
    368 	case 2:
    369 		strcpy(ae->name, AudioEslinear_le);
    370 		ae->encoding = AUDIO_ENCODING_SLINEAR_LE;
    371 		ae->precision = 16;
    372 		ae->flags = 0;
    373 		return 0;
    374 	case 3:
    375 		strcpy(ae->name, AudioEmulaw);
    376 		ae->encoding = AUDIO_ENCODING_ULAW;
    377 		ae->precision = 8;
    378 		ae->flags = AUDIO_ENCODINGFLAG_EMULATED;
    379 		return 0;
    380 	case 4:
    381 		strcpy(ae->name, AudioEalaw);
    382 		ae->encoding = AUDIO_ENCODING_ALAW;
    383 		ae->precision = 8;
    384 		ae->flags = AUDIO_ENCODINGFLAG_EMULATED;
    385 		return 0;
    386 	default:
    387 		return EINVAL;
    388 	}
    389 }
    390 
    391 static void
    392 mono16_to_stereo16(v, p, cc)
    393 	void *v;
    394 	u_char *p;
    395 	int cc;
    396 {
    397 	int x;
    398 	int16_t *src, *dst;
    399 
    400 	src = (void *)(p + cc);
    401 	dst = (void *)(p + cc * 2);
    402 	while (cc > 0) {
    403 		x = *--src;
    404 		*--dst = x;
    405 		*--dst = x;
    406 		cc -= 2;
    407 	}
    408 }
    409 
    410 int
    411 awacs_set_params(h, setmode, usemode, play, rec)
    412 	void *h;
    413 	int setmode, usemode;
    414 	struct audio_params *play, *rec;
    415 {
    416 	struct awacs_softc *sc = h;
    417 	struct audio_params *p;
    418 	int mode, rate;
    419 
    420 	/*
    421 	 * This device only has one clock, so make the sample rates match.
    422 	 */
    423 	if (play->sample_rate != rec->sample_rate &&
    424 	    usemode == (AUMODE_PLAY | AUMODE_RECORD)) {
    425 		if (setmode == AUMODE_PLAY) {
    426 			rec->sample_rate = play->sample_rate;
    427 			setmode |= AUMODE_RECORD;
    428 		} else if (setmode == AUMODE_RECORD) {
    429 			play->sample_rate = rec->sample_rate;
    430 			setmode |= AUMODE_PLAY;
    431 		} else
    432 			return EINVAL;
    433 	}
    434 
    435 	for (mode = AUMODE_RECORD; mode != -1;
    436 	     mode = mode == AUMODE_RECORD ? AUMODE_PLAY : -1) {
    437 		if ((setmode & mode) == 0)
    438 			continue;
    439 
    440 		p = mode == AUMODE_PLAY ? play : rec;
    441 
    442 		if (p->sample_rate < 4000 || p->sample_rate > 50000 ||
    443 		    (p->precision != 8 && p->precision != 16) ||
    444 		    (p->channels != 1 && p->channels != 2))
    445 			return EINVAL;
    446 
    447 		p->factor = 1;
    448 		p->sw_code = 0;
    449 		awacs_write_reg(sc, AWACS_BYTE_SWAP, 0);
    450 
    451 		switch (p->encoding) {
    452 
    453 		case AUDIO_ENCODING_SLINEAR_LE:
    454 			awacs_write_reg(sc, AWACS_BYTE_SWAP, 1);
    455 		case AUDIO_ENCODING_SLINEAR_BE:
    456 			if (p->channels == 1) {
    457 				p->factor = 2;
    458 				p->sw_code = mono16_to_stereo16;
    459 				break;
    460 			}
    461 			if (p->precision != 16)
    462 				return EINVAL;
    463 				/* p->sw_code = change_sign8; */
    464 			break;
    465 
    466 		case AUDIO_ENCODING_ULINEAR_LE:
    467 			awacs_write_reg(sc, AWACS_BYTE_SWAP, 1);
    468 		case AUDIO_ENCODING_ULINEAR_BE:
    469 			if (p->precision == 16)
    470 				p->sw_code = change_sign16_be;
    471 			else
    472 				return EINVAL;
    473 			break;
    474 
    475 		case AUDIO_ENCODING_ULAW:
    476 			if (mode == AUMODE_PLAY) {
    477 				p->factor = 2;
    478 				p->sw_code = mulaw_to_slinear16_be;
    479 			} else
    480 				p->sw_code = ulinear8_to_mulaw;
    481 			break;
    482 
    483 		case AUDIO_ENCODING_ALAW:
    484 			if (mode == AUMODE_PLAY) {
    485 				p->factor = 2;
    486 				p->sw_code = alaw_to_slinear16_be;
    487 			} else
    488 				p->sw_code = ulinear8_to_alaw;
    489 			break;
    490 
    491 		default:
    492 			return EINVAL;
    493 		}
    494 	}
    495 
    496 	/* Set the speed */
    497 	rate = p->sample_rate;
    498 
    499 	awacs_set_rate(sc, rate);
    500 
    501 	return 0;
    502 }
    503 
    504 int
    505 awacs_round_blocksize(h, size)
    506 	void *h;
    507 	int size;
    508 {
    509 	return size & ~PGOFSET;
    510 }
    511 
    512 int
    513 awacs_halt_output(h)
    514 	void *h;
    515 {
    516 	struct awacs_softc *sc = h;
    517 
    518 	dbdma_stop(sc->sc_odma);
    519 	dbdma_reset(sc->sc_odma);
    520 	return 0;
    521 }
    522 
    523 int
    524 awacs_halt_input(h)
    525 	void *h;
    526 {
    527 	struct awacs_softc *sc = h;
    528 
    529 	dbdma_stop(sc->sc_idma);
    530 	dbdma_reset(sc->sc_idma);
    531 	return 0;
    532 }
    533 
    534 int
    535 awacs_getdev(h, retp)
    536 	void *h;
    537 	struct audio_device *retp;
    538 {
    539 	*retp = awacs_device;
    540 	return 0;
    541 }
    542 
    543 enum {
    544 	AWACS_OUTPUT_SELECT,
    545 	AWACS_VOL_SPEAKER,
    546 	AWACS_VOL_HEADPHONE,
    547 	AWACS_OUTPUT_CLASS,
    548 	AWACS_MONITOR_CLASS,
    549 	AWACS_ENUM_LAST
    550 };
    551 
    552 int
    553 awacs_set_port(h, mc)
    554 	void *h;
    555 	mixer_ctrl_t *mc;
    556 {
    557 	struct awacs_softc *sc = h;
    558 	int l, r;
    559 
    560 	DPRINTF("awacs_set_port dev = %d, type = %d\n", mc->dev, mc->type);
    561 
    562 	l = mc->un.value.level[AUDIO_MIXER_LEVEL_LEFT];
    563 	r = mc->un.value.level[AUDIO_MIXER_LEVEL_RIGHT];
    564 
    565 	switch (mc->dev) {
    566 	case AWACS_OUTPUT_SELECT:
    567 		printf("output_select mask = 0x%x\n", mc->un.mask);
    568 		sc->sc_output_mask = mc->un.mask;
    569 		return 0;
    570 
    571 	case AWACS_VOL_SPEAKER:
    572 		awacs_set_speaker_volume(sc, l, r);
    573 		return 0;
    574 
    575 	case AWACS_VOL_HEADPHONE:
    576 		awacs_set_ext_volume(sc, l, r);
    577 		return 0;
    578 	}
    579 
    580 	return ENXIO;
    581 }
    582 
    583 int
    584 awacs_get_port(h, mc)
    585 	void *h;
    586 	mixer_ctrl_t *mc;
    587 {
    588 	struct awacs_softc *sc = h;
    589 	int vol, l, r;
    590 
    591 	DPRINTF("awacs_get_port dev = %d, type = %d\n", mc->dev, mc->type);
    592 
    593 	switch (mc->dev) {
    594 	case AWACS_OUTPUT_SELECT:
    595 		mc->un.mask = sc->sc_output_mask;
    596 		return 0;
    597 
    598 	case AWACS_VOL_SPEAKER:
    599 		vol = sc->sc_codecctl4;
    600 		l = (15 - ((vol & 0x3c0) >> 6)) * 16;
    601 		r = (15 - (vol & 0x0f)) * 16;
    602 		mc->un.mask = 1 << 0;
    603 		mc->un.value.level[AUDIO_MIXER_LEVEL_LEFT] = l;
    604 		mc->un.value.level[AUDIO_MIXER_LEVEL_RIGHT] = r;
    605 		return 0;
    606 
    607 	case AWACS_VOL_HEADPHONE:
    608 		vol = sc->sc_codecctl2;
    609 		l = (15 - ((vol & 0x3c0) >> 6)) * 16;
    610 		r = (15 - (vol & 0x0f)) * 16;
    611 		mc->un.mask = 1 << 1;
    612 		mc->un.value.level[AUDIO_MIXER_LEVEL_LEFT] = l;
    613 		mc->un.value.level[AUDIO_MIXER_LEVEL_RIGHT] = r;
    614 		return 0;
    615 
    616 	default:
    617 		return ENXIO;
    618 	}
    619 
    620 	return 0;
    621 }
    622 
    623 int
    624 awacs_query_devinfo(h, dip)
    625 	void *h;
    626 	mixer_devinfo_t *dip;
    627 {
    628 
    629 	DPRINTF("query_devinfo %d\n", dip->index);
    630 
    631 	switch (dip->index) {
    632 
    633 	case AWACS_OUTPUT_SELECT:
    634 		dip->mixer_class = AWACS_MONITOR_CLASS;
    635 		strcpy(dip->label.name, AudioNoutput);
    636 		dip->type = AUDIO_MIXER_SET;
    637 		dip->prev = dip->next = AUDIO_MIXER_LAST;
    638 		dip->un.s.num_mem = 2;
    639 		strcpy(dip->un.s.member[0].label.name, AudioNspeaker);
    640 		dip->un.s.member[0].mask = 1 << 0;
    641 		strcpy(dip->un.s.member[1].label.name, AudioNheadphone);
    642 		dip->un.s.member[1].mask = 1 << 1;
    643 		return 0;
    644 
    645 	case AWACS_VOL_SPEAKER:
    646 		dip->mixer_class = AWACS_OUTPUT_CLASS;
    647 		strcpy(dip->label.name, AudioNspeaker);
    648 		dip->type = AUDIO_MIXER_VALUE;
    649 		dip->prev = dip->next = AUDIO_MIXER_LAST;
    650 		dip->un.v.num_channels = 2;
    651 		strcpy(dip->un.v.units.name, AudioNvolume);
    652 		return 0;
    653 
    654 	case AWACS_VOL_HEADPHONE:
    655 		dip->mixer_class = AWACS_OUTPUT_CLASS;
    656 		strcpy(dip->label.name, AudioNheadphone);
    657 		dip->type = AUDIO_MIXER_VALUE;
    658 		dip->prev = dip->next = AUDIO_MIXER_LAST;
    659 		dip->un.v.num_channels = 2;
    660 		strcpy(dip->un.v.units.name, AudioNvolume);
    661 		return 0;
    662 
    663 	case AWACS_MONITOR_CLASS:
    664 		dip->mixer_class = AWACS_MONITOR_CLASS;
    665 		strcpy(dip->label.name, AudioCmonitor);
    666 		dip->type = AUDIO_MIXER_CLASS;
    667 		dip->next = dip->prev = AUDIO_MIXER_LAST;
    668 		return 0;
    669 
    670 	case AWACS_OUTPUT_CLASS:
    671 		dip->mixer_class = AWACS_OUTPUT_CLASS;
    672 		strcpy(dip->label.name, AudioCoutputs);
    673 		dip->type = AUDIO_MIXER_CLASS;
    674 		dip->next = dip->prev = AUDIO_MIXER_LAST;
    675 		return 0;
    676 	}
    677 
    678 	return ENXIO;
    679 }
    680 
    681 size_t
    682 awacs_round_buffersize(h, dir, size)
    683 	void *h;
    684 	int dir;
    685 	size_t size;
    686 {
    687 	if (size > 65536)
    688 		size = 65536;
    689 	return size;
    690 }
    691 
    692 paddr_t
    693 awacs_mappage(h, mem, off, prot)
    694 	void *h;
    695 	void *mem;
    696 	off_t off;
    697 	int prot;
    698 {
    699 	if (off < 0)
    700 		return -1;
    701 	return -1;	/* XXX */
    702 }
    703 
    704 int
    705 awacs_get_props(h)
    706 	void *h;
    707 {
    708 	return AUDIO_PROP_FULLDUPLEX /* | AUDIO_PROP_MMAP */;
    709 }
    710 
    711 int
    712 awacs_trigger_output(h, start, end, bsize, intr, arg, param)
    713 	void *h;
    714 	void *start, *end;
    715 	int bsize;
    716 	void (*intr)(void *);
    717 	void *arg;
    718 	struct audio_params *param;
    719 {
    720 	struct awacs_softc *sc = h;
    721 	struct dbdma_command *cmd = sc->sc_odmacmd;
    722 	vaddr_t va;
    723 	int i, len, intmode;
    724 
    725 	DPRINTF("trigger_output %p %p 0x%x\n", start, end, bsize);
    726 
    727 	sc->sc_ointr = intr;
    728 	sc->sc_oarg = arg;
    729 	sc->sc_opages = ((char *)end - (char *)start) / NBPG;
    730 
    731 #ifdef DIAGNOSTIC
    732 	if (sc->sc_opages > 16)
    733 		panic("awacs_trigger_output");
    734 #endif
    735 
    736 	va = (vaddr_t)start;
    737 	len = 0;
    738 	for (i = sc->sc_opages; i > 0; i--) {
    739 		len += NBPG;
    740 		if (len < bsize)
    741 			intmode = DBDMA_INT_NEVER;
    742 		else {
    743 			len = 0;
    744 			intmode = DBDMA_INT_ALWAYS;
    745 		}
    746 
    747 		DBDMA_BUILD(cmd, DBDMA_CMD_OUT_MORE, 0, NBPG, vtophys(va),
    748 			intmode, DBDMA_WAIT_NEVER, DBDMA_BRANCH_NEVER);
    749 		va += NBPG;
    750 		cmd++;
    751 	}
    752 
    753 	DBDMA_BUILD(cmd, DBDMA_CMD_NOP, 0, 0, 0,
    754 		DBDMA_INT_NEVER, DBDMA_WAIT_NEVER, DBDMA_BRANCH_ALWAYS);
    755 	dbdma_st32(&cmd->d_cmddep, vtophys((vaddr_t)sc->sc_odmacmd));
    756 
    757 	dbdma_start(sc->sc_odma, sc->sc_odmacmd);
    758 
    759 	return 0;
    760 }
    761 
    762 int
    763 awacs_trigger_input(h, start, end, bsize, intr, arg, param)
    764 	void *h;
    765 	void *start, *end;
    766 	int bsize;
    767 	void (*intr)(void *);
    768 	void *arg;
    769 	struct audio_params *param;
    770 {
    771 	printf("awacs_trigger_input called\n");
    772 
    773 	return 1;
    774 }
    775 
    776 void
    777 awacs_set_speaker_volume(sc, left, right)
    778 	struct awacs_softc *sc;
    779 	int left, right;
    780 {
    781 	int lval = 15 - (left  & 0xff) / 16;
    782 	int rval = 15 - (right & 0xff) / 16;
    783 
    784 	DPRINTF("speaker_volume %d %d\n", lval, rval);
    785 
    786 	sc->sc_codecctl4 &= ~0x3cf;
    787 	sc->sc_codecctl4 |= (lval << 6) | rval;
    788 	awacs_write_codec(sc, sc->sc_codecctl4);
    789 }
    790 
    791 void
    792 awacs_set_ext_volume(sc, left, right)
    793 	struct awacs_softc *sc;
    794 	int left, right;
    795 {
    796 	int lval = 15 - (left  & 0xff) / 16;
    797 	int rval = 15 - (right & 0xff) / 16;
    798 
    799 	DPRINTF("ext_volume %d %d\n", lval, rval);
    800 
    801 	sc->sc_codecctl2 &= ~0x3cf;
    802 	sc->sc_codecctl2 |= (lval << 6) | rval;
    803 	awacs_write_codec(sc, sc->sc_codecctl2);
    804 }
    805 
    806 int
    807 awacs_set_rate(sc, rate)
    808 	struct awacs_softc *sc;
    809 	int rate;
    810 {
    811 	int c;
    812 
    813 	switch (rate) {
    814 
    815 	case 44100:
    816 		c = AWACS_RATE_44100;
    817 		break;
    818 	case 29400:
    819 		c = AWACS_RATE_29400;
    820 		break;
    821 	case 22050:
    822 		c = AWACS_RATE_22050;
    823 		break;
    824 	case 17640:
    825 		c = AWACS_RATE_17640;
    826 		break;
    827 	case 14700:
    828 		c = AWACS_RATE_14700;
    829 		break;
    830 	case 11025:
    831 		c = AWACS_RATE_11025;
    832 		break;
    833 	case 8820:
    834 		c = AWACS_RATE_8820;
    835 		break;
    836 	case 7350:
    837 		c = AWACS_RATE_7350;
    838 		break;
    839 	default:
    840 		return -1;
    841 	}
    842 
    843 	sc->sc_soundctl &= ~AWACS_RATE_MASK;
    844 	sc->sc_soundctl |= c;
    845 	awacs_write_reg(sc, AWACS_SOUND_CTRL, sc->sc_soundctl);
    846 
    847 	return 0;
    848 }
    849