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awacs.c revision 1.40.6.1
      1 /*	$NetBSD: awacs.c,v 1.40.6.1 2011/11/22 00:48:48 macallan 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/cdefs.h>
     30 __KERNEL_RCSID(0, "$NetBSD: awacs.c,v 1.40.6.1 2011/11/22 00:48:48 macallan Exp $");
     31 
     32 #include <sys/param.h>
     33 #include <sys/audioio.h>
     34 #include <sys/device.h>
     35 #include <sys/systm.h>
     36 #include <sys/kthread.h>
     37 #include <sys/kernel.h>
     38 #include <sys/mutex.h>
     39 #include <sys/condvar.h>
     40 
     41 #include <dev/auconv.h>
     42 #include <dev/audio_if.h>
     43 #include <dev/mulaw.h>
     44 
     45 #include <uvm/uvm_extern.h>
     46 #include <machine/autoconf.h>
     47 #include <machine/pio.h>
     48 
     49 #include <dev/ofw/openfirm.h>
     50 #include <macppc/dev/dbdma.h>
     51 
     52 #include <dev/i2c/sgsmixvar.h>
     53 #include "sgsmix.h"
     54 #include "opt_awacs.h"
     55 
     56 #ifdef AWACS_DEBUG
     57 # define DPRINTF printf
     58 #else
     59 # define DPRINTF while (0) printf
     60 #endif
     61 
     62 /* sc_flags values */
     63 #define AWACS_CAP_BSWAP		0x0001
     64 
     65 struct awacs_softc {
     66 	device_t sc_dev;
     67 	int sc_flags;
     68 	bus_space_tag_t sc_tag;
     69 	bus_space_handle_t	sc_regh;
     70 	bus_space_handle_t	sc_idmah;
     71 	bus_space_handle_t	sc_odmah;
     72 	void (*sc_ointr)(void *);	/* DMA completion intr handler */
     73 	void *sc_oarg;			/* arg for sc_ointr() */
     74 	int sc_opages;			/* # of output pages */
     75 
     76 	void (*sc_iintr)(void *);	/* DMA completion intr handler */
     77 	void *sc_iarg;			/* arg for sc_iintr() */
     78 
     79 	uint32_t sc_record_source;	/* recording source mask */
     80 	uint32_t sc_output_mask;	/* output mask */
     81 	uint32_t sc_headphones_mask;	/* which reading of the gpio means */
     82 	uint32_t sc_headphones_in;	/* headphones are present */
     83 
     84 	int sc_screamer;
     85 	int sc_have_perch;
     86 	int vol_l, vol_r;
     87 	int sc_bass, sc_treble;
     88 	lwp_t *sc_thread;
     89 	kcondvar_t sc_event;
     90 	int sc_output_wanted;
     91 	int sc_need_parallel_output;
     92 #if NSGSMIX > 0
     93 	device_t sc_sgsmix;
     94 #endif
     95 
     96 	u_int sc_codecctl0;
     97 	u_int sc_codecctl1;
     98 	u_int sc_codecctl2;
     99 	u_int sc_codecctl4;
    100 	u_int sc_codecctl5;
    101 	u_int sc_codecctl6;
    102 	u_int sc_codecctl7;
    103 	u_int sc_soundctl;
    104 
    105 	struct dbdma_regmap *sc_odma;
    106 	struct dbdma_regmap *sc_idma;
    107 	struct dbdma_command *sc_odmacmd;
    108 	struct dbdma_command *sc_idmacmd;
    109 
    110 #define AWACS_NFORMATS	2
    111 	struct audio_format sc_formats[AWACS_NFORMATS];
    112 
    113 	kmutex_t sc_lock;
    114 	kmutex_t sc_intr_lock;
    115 };
    116 
    117 static int awacs_match(device_t, struct cfdata *, void *);
    118 static void awacs_attach(device_t, device_t, void *);
    119 static int awacs_intr(void *);
    120 static int awacs_status_intr(void *);
    121 
    122 static void awacs_close(void *);
    123 static int awacs_query_encoding(void *, struct audio_encoding *);
    124 static int awacs_set_params(void *, int, int, audio_params_t *, audio_params_t *,
    125 		     stream_filter_list_t *, stream_filter_list_t *);
    126 
    127 static int awacs_round_blocksize(void *, int, int, const audio_params_t *);
    128 static int awacs_trigger_output(void *, void *, void *, int, void (*)(void *),
    129 			 void *, const audio_params_t *);
    130 static int awacs_trigger_input(void *, void *, void *, int, void (*)(void *),
    131 			void *, const audio_params_t *);
    132 static int awacs_halt_output(void *);
    133 static int awacs_halt_input(void *);
    134 static int awacs_getdev(void *, struct audio_device *);
    135 static int awacs_set_port(void *, mixer_ctrl_t *);
    136 static int awacs_get_port(void *, mixer_ctrl_t *);
    137 static int awacs_query_devinfo(void *, mixer_devinfo_t *);
    138 static size_t awacs_round_buffersize(void *, int, size_t);
    139 static paddr_t awacs_mappage(void *, void *, off_t, int);
    140 static int awacs_get_props(void *);
    141 static void awacs_get_locks(void *, kmutex_t **, kmutex_t **);
    142 
    143 static inline u_int awacs_read_reg(struct awacs_softc *, int);
    144 static inline void awacs_write_reg(struct awacs_softc *, int, int);
    145 static void awacs_write_codec(struct awacs_softc *, int);
    146 
    147 void awacs_set_volume(struct awacs_softc *, int, int);
    148 static void awacs_set_speaker_volume(struct awacs_softc *, int, int);
    149 static void awacs_set_ext_volume(struct awacs_softc *, int, int);
    150 static void awacs_set_loopthrough_volume(struct awacs_softc *, int, int);
    151 static int awacs_set_rate(struct awacs_softc *, const audio_params_t *);
    152 static void awacs_select_output(struct awacs_softc *, int);
    153 static int awacs_check_headphones(struct awacs_softc *);
    154 static void awacs_thread(void *);
    155 
    156 #if NSGSMIX > 0
    157 static void awacs_set_bass(struct awacs_softc *, int);
    158 static void awacs_set_treble(struct awacs_softc *, int);
    159 #endif
    160 static int awacs_setup_sgsmix(device_t);
    161 
    162 CFATTACH_DECL_NEW(awacs, sizeof(struct awacs_softc),
    163     awacs_match, awacs_attach, NULL, NULL);
    164 
    165 const struct audio_hw_if awacs_hw_if = {
    166 	NULL,			/* open */
    167 	awacs_close,
    168 	NULL,
    169 	awacs_query_encoding,
    170 	awacs_set_params,
    171 	awacs_round_blocksize,
    172 	NULL,
    173 	NULL,
    174 	NULL,
    175 	NULL,
    176 	NULL,
    177 	awacs_halt_output,
    178 	awacs_halt_input,
    179 	NULL,
    180 	awacs_getdev,
    181 	NULL,
    182 	awacs_set_port,
    183 	awacs_get_port,
    184 	awacs_query_devinfo,
    185 	NULL,
    186 	NULL,
    187 	awacs_round_buffersize,
    188 	awacs_mappage,
    189 	awacs_get_props,
    190 	awacs_trigger_output,
    191 	awacs_trigger_input,
    192 	NULL,
    193 	NULL,
    194 	awacs_get_locks,
    195 };
    196 
    197 struct audio_device awacs_device = {
    198 	"AWACS",
    199 	"",
    200 	"awacs"
    201 };
    202 
    203 #define AWACS_NFORMATS		2
    204 #define AWACS_FORMATS_LE	0
    205 static const struct audio_format awacs_formats[AWACS_NFORMATS] = {
    206 	{NULL, AUMODE_PLAY | AUMODE_RECORD, AUDIO_ENCODING_SLINEAR_LE, 16, 16,
    207 	 2, AUFMT_STEREO, 8,
    208 	 {7350, 8820, 11025, 14700, 17640, 22050, 29400, 44100}},
    209 	{NULL, AUMODE_PLAY | AUMODE_RECORD, AUDIO_ENCODING_SLINEAR_BE, 16, 16,
    210 	 2, AUFMT_STEREO, 8,
    211 	 {7350, 8820, 11025, 14700, 17640, 22050, 29400, 44100}},
    212 };
    213 
    214 /* register offset */
    215 #define AWACS_SOUND_CTRL	0x00
    216 #define AWACS_CODEC_CTRL	0x10
    217 #define AWACS_CODEC_STATUS	0x20
    218 #define AWACS_CLIP_COUNT	0x30
    219 #define AWACS_BYTE_SWAP		0x40
    220 
    221 /* sound control */
    222 #define AWACS_INPUT_SUBFRAME0	0x00000001
    223 #define AWACS_INPUT_SUBFRAME1	0x00000002
    224 #define AWACS_INPUT_SUBFRAME2	0x00000004
    225 #define AWACS_INPUT_SUBFRAME3	0x00000008
    226 
    227 #define AWACS_OUTPUT_SUBFRAME0	0x00000010
    228 #define AWACS_OUTPUT_SUBFRAME1	0x00000020
    229 #define AWACS_OUTPUT_SUBFRAME2	0x00000040
    230 #define AWACS_OUTPUT_SUBFRAME3	0x00000080
    231 
    232 #define AWACS_RATE_44100	0x00000000
    233 #define AWACS_RATE_29400	0x00000100
    234 #define AWACS_RATE_22050	0x00000200
    235 #define AWACS_RATE_17640	0x00000300
    236 #define AWACS_RATE_14700	0x00000400
    237 #define AWACS_RATE_11025	0x00000500
    238 #define AWACS_RATE_8820		0x00000600
    239 #define AWACS_RATE_7350		0x00000700
    240 #define AWACS_RATE_MASK		0x00000700
    241 
    242 #define AWACS_ERROR		0x00000800
    243 #define AWACS_PORTCHG		0x00001000
    244 #define AWACS_INTR_ERROR	0x00002000	/* interrupt on error */
    245 #define AWACS_INTR_PORTCHG	0x00004000	/* interrupt on port change */
    246 
    247 #define AWACS_STATUS_SUBFRAME	0x00018000	/* mask */
    248 
    249 /* codec control */
    250 #define AWACS_CODEC_ADDR0	0x00000000
    251 #define AWACS_CODEC_ADDR1	0x00001000
    252 #define AWACS_CODEC_ADDR2	0x00002000
    253 #define AWACS_CODEC_ADDR4	0x00004000
    254 #define AWACS_CODEC_ADDR5	0x00005000
    255 #define AWACS_CODEC_ADDR6	0x00006000
    256 #define AWACS_CODEC_ADDR7	0x00007000
    257 #define AWACS_CODEC_EMSEL0	0x00000000
    258 #define AWACS_CODEC_EMSEL1	0x00400000
    259 #define AWACS_CODEC_EMSEL2	0x00800000
    260 #define AWACS_CODEC_EMSEL4	0x00c00000
    261 #define AWACS_CODEC_BUSY	0x01000000
    262 
    263 /* cc0 */
    264 #define AWACS_DEFAULT_CD_GAIN	0x000000bb
    265 #define AWACS_INPUT_CD		0x00000200
    266 #define AWACS_INPUT_LINE	0x00000400
    267 #define AWACS_INPUT_MICROPHONE	0x00000800
    268 #define AWACS_INPUT_MASK	0x00000e00
    269 
    270 /* cc1 */
    271 #define AWACS_LOOP_THROUGH	0x00000040
    272 #define AWACS_MUTE_SPEAKER	0x00000080
    273 #define AWACS_MUTE_HEADPHONE	0x00000200
    274 #define AWACS_PARALLEL_OUTPUT	0x00000c00
    275 
    276 /* output */
    277 #define OUTPUT_SPEAKER		1
    278 #define OUTPUT_HEADPHONES	2
    279 
    280 /* codec status */
    281 
    282 static const char *screamer[] = {"screamer", NULL};
    283 
    284 /*
    285  * list machines that have the headphone detect GPIO reversed here.
    286  * so far the only known case is the PowerBook 3400c and similar machines
    287  */
    288 static const char *detect_reversed[] = {"AAPL,3400/2400",
    289 					"AAPL,3500",
    290 					NULL};
    291 
    292 static const char *use_gpio4[] = {	"PowerMac3,3",
    293 					NULL};
    294 
    295 /*
    296  * list of machines that do not require AWACS_PARALLEL_OUTPUT
    297  */
    298 static const char *no_parallel_output[] = {	"PowerBook3,1",
    299 						NULL};
    300 
    301 static int
    302 awacs_match(device_t parent, struct cfdata *match, void *aux)
    303 {
    304 	struct confargs *ca;
    305 
    306 	ca = aux;
    307 
    308 	if (strcmp(ca->ca_name, "awacs") == 0 ||
    309 	    strcmp(ca->ca_name, "davbus") == 0)
    310 		return 100;
    311 
    312 	if (ca->ca_nreg < 24 || ca->ca_nintr < 12)
    313 		return 0;
    314 
    315 	if (strcmp(ca->ca_name, "i2s") == 0)
    316 		return 1;
    317 
    318 	return 0;
    319 }
    320 
    321 static void
    322 awacs_attach(device_t parent, device_t self, void *aux)
    323 {
    324 	struct awacs_softc *sc;
    325 	struct confargs *ca = aux;
    326 	int cirq, oirq, iirq, cirq_type, oirq_type, iirq_type;
    327 	int len = -1, perch;
    328 	int root_node;
    329 	char compat[256];
    330 
    331 	sc = device_private(self);
    332 	sc->sc_dev = self;
    333 	sc->sc_tag = ca->ca_tag;
    334 
    335 	if (bus_space_map(sc->sc_tag, ca->ca_baseaddr + ca->ca_reg[0],
    336 	    ca->ca_reg[1], 0, &sc->sc_regh) != 0)
    337 		printf("couldn't map codec registers\n");
    338 	if (bus_space_map(sc->sc_tag, ca->ca_baseaddr + ca->ca_reg[2],
    339 	    ca->ca_reg[3], BUS_SPACE_MAP_LINEAR, &sc->sc_odmah) != 0)
    340 		printf("couldn't map DMA out registers\n");
    341 	if (bus_space_map(sc->sc_tag, ca->ca_baseaddr + ca->ca_reg[4],
    342 	    ca->ca_reg[5], BUS_SPACE_MAP_LINEAR, &sc->sc_idmah) != 0)
    343 		printf("couldn't map DMA in registers\n");
    344 
    345 	sc->sc_odma = bus_space_vaddr(sc->sc_tag, sc->sc_odmah);
    346 	sc->sc_idma = bus_space_vaddr(sc->sc_tag, sc->sc_idmah);
    347 	sc->sc_odmacmd = dbdma_alloc(20 * sizeof(struct dbdma_command));
    348 	sc->sc_idmacmd = dbdma_alloc(20 * sizeof(struct dbdma_command));
    349 
    350 	if (strcmp(ca->ca_name, "i2s") == 0) {
    351 		int node, intr[6];
    352 
    353 		node = OF_child(ca->ca_node);
    354 		if (node == 0) {
    355 			printf("no i2s-a child\n");
    356 			return;
    357 		}
    358 		if (OF_getprop(node, "interrupts", intr, sizeof(intr)) == -1) {
    359 			printf("no interrupt property\n");
    360 			return;
    361 		}
    362 
    363 		cirq = intr[0];
    364 		oirq = intr[2];
    365 		iirq = intr[4];
    366 		cirq_type = intr[1] ? IST_LEVEL : IST_EDGE;
    367 		oirq_type = intr[3] ? IST_LEVEL : IST_EDGE;
    368 		iirq_type = intr[5] ? IST_LEVEL : IST_EDGE;
    369 	} else if (ca->ca_nintr == 24) {
    370 		cirq = ca->ca_intr[0];
    371 		oirq = ca->ca_intr[2];
    372 		iirq = ca->ca_intr[4];
    373 		cirq_type = ca->ca_intr[1] ? IST_LEVEL : IST_EDGE;
    374 		oirq_type = ca->ca_intr[3] ? IST_LEVEL : IST_EDGE;
    375 		iirq_type = ca->ca_intr[5] ? IST_LEVEL : IST_EDGE;
    376 	} else {
    377 		cirq = ca->ca_intr[0];
    378 		oirq = ca->ca_intr[1];
    379 		iirq = ca->ca_intr[2];
    380 		cirq_type = oirq_type = iirq_type = IST_EDGE;
    381 	}
    382 
    383 	intr_establish(cirq, cirq_type, IPL_BIO, awacs_status_intr, sc);
    384 	intr_establish(oirq, oirq_type, IPL_SCHED, awacs_intr, sc);
    385 	intr_establish(iirq, iirq_type, IPL_SCHED, awacs_intr, sc);
    386 
    387 	mutex_init(&sc->sc_lock, MUTEX_DEFAULT, IPL_NONE);
    388 	mutex_init(&sc->sc_intr_lock, MUTEX_DEFAULT, IPL_SCHED);
    389 
    390 	cv_init(&sc->sc_event, "awacs_wait");
    391 
    392 	/* check if the chip is a screamer */
    393 	sc->sc_screamer = (of_compatible(ca->ca_node, screamer) != -1);
    394 	if (!sc->sc_screamer) {
    395 		/* look for 'sound' child node */
    396 		int sound_node;
    397 
    398 		sound_node = OF_child(ca->ca_node);
    399 		while ((sound_node != 0) && (!sc->sc_screamer)) {
    400 
    401 			sc->sc_screamer =
    402 			    (of_compatible(sound_node, screamer) != -1);
    403 			sound_node = OF_peer(sound_node);
    404 		}
    405 	}
    406 
    407 	if (sc->sc_screamer) {
    408 		printf(" Screamer");
    409 	}
    410 
    411 	printf(": irq %d,%d,%d\n", cirq, oirq, iirq);
    412 
    413 	sc->vol_l = 0;
    414 	sc->vol_r = 0;
    415 
    416 	memcpy(&sc->sc_formats, awacs_formats, sizeof(awacs_formats));
    417 
    418 	/* XXX Uni-North based models don't have byteswap capability. */
    419 	if (OF_finddevice("/uni-n") == -1) {
    420 
    421 		sc->sc_flags |= AWACS_CAP_BSWAP;
    422 	} else {
    423 
    424 		AUFMT_INVALIDATE(&sc->sc_formats[AWACS_FORMATS_LE]);
    425 	}
    426 
    427 	sc->sc_soundctl = AWACS_INPUT_SUBFRAME0 | AWACS_OUTPUT_SUBFRAME0 |
    428 		AWACS_RATE_44100 | AWACS_INTR_PORTCHG;
    429 	awacs_write_reg(sc, AWACS_SOUND_CTRL, sc->sc_soundctl);
    430 
    431 	sc->sc_codecctl0 = AWACS_CODEC_ADDR0 | AWACS_CODEC_EMSEL0;
    432 	sc->sc_codecctl1 = AWACS_CODEC_ADDR1 | AWACS_CODEC_EMSEL0;
    433 	sc->sc_codecctl2 = AWACS_CODEC_ADDR2 | AWACS_CODEC_EMSEL0;
    434 	sc->sc_codecctl4 = AWACS_CODEC_ADDR4 | AWACS_CODEC_EMSEL0;
    435 	sc->sc_codecctl5 = AWACS_CODEC_ADDR5 | AWACS_CODEC_EMSEL0;
    436 	sc->sc_codecctl6 = AWACS_CODEC_ADDR6 | AWACS_CODEC_EMSEL0;
    437 	sc->sc_codecctl7 = AWACS_CODEC_ADDR7 | AWACS_CODEC_EMSEL0;
    438 
    439 	sc->sc_codecctl0 |= AWACS_INPUT_CD | AWACS_DEFAULT_CD_GAIN;
    440 	awacs_write_codec(sc, sc->sc_codecctl0);
    441 
    442 	/* Set loopthrough for external mixer on beige G3 */
    443 	sc->sc_codecctl1 |= AWACS_LOOP_THROUGH;
    444 
    445         printf("%s: ", device_xname(sc->sc_dev));
    446 
    447 	/*
    448 	 * all(?) awacs have GPIOs to detect if there's something plugged into
    449 	 * the headphone jack. The other GPIOs are either used for other jacks
    450 	 * ( the PB3400c's microphone jack for instance ) or unused.
    451 	 * The problem is that there are at least three different ways how
    452 	 * those GPIOs are wired to the actual jacks.
    453 	 * For now we bother only with headphone detection
    454 	 */
    455 	perch = OF_finddevice("/perch");
    456 	root_node = OF_finddevice("/");
    457 	if (of_compatible(root_node, detect_reversed) != -1) {
    458 
    459 		/* 0x02 is for the microphone jack, high active */
    460 		/*
    461 		 * for some reason the gpio for the headphones jack is low
    462 		 * active on the PB3400 and similar machines
    463 		 */
    464 		sc->sc_headphones_mask = 0x8;
    465 		sc->sc_headphones_in = 0x0;
    466 	} else if ((perch != -1) ||
    467 	    (of_compatible(root_node, use_gpio4) != -1)) {
    468 		/*
    469 		 * this is for the beige G3's 'personality card' which uses
    470 		 * yet another wiring of the headphone detect GPIOs
    471 		 * some G4s use it as well
    472 		 */
    473 		sc->sc_headphones_mask = 0x04;
    474 		sc->sc_headphones_in = 0x04;
    475 	} else {
    476 		/* while on most machines it's high active as well */
    477 		sc->sc_headphones_mask = 0x8;
    478 		sc->sc_headphones_in = 0x8;
    479 	}
    480 
    481 	if (of_compatible(root_node, no_parallel_output) != -1)
    482 		sc->sc_need_parallel_output = 0;
    483 	else {
    484 		sc->sc_need_parallel_output = 1;
    485 		sc->sc_codecctl1 |= AWACS_PARALLEL_OUTPUT;
    486 	}
    487 
    488 	if (awacs_check_headphones(sc)) {
    489 
    490                 /* default output to headphones */
    491                 printf("headphones\n");
    492                 sc->sc_output_mask = OUTPUT_HEADPHONES;
    493         } else {
    494 
    495                 /* default output to speakers */
    496                 printf("speaker\n");
    497                 sc->sc_output_mask = OUTPUT_SPEAKER;
    498         }
    499 	sc->sc_output_wanted = sc->sc_output_mask;
    500 	awacs_select_output(sc, sc->sc_output_mask);
    501 
    502 	delay(100);
    503 	if (sc->sc_screamer) {
    504 		awacs_write_codec(sc, sc->sc_codecctl6);
    505 		awacs_write_codec(sc, sc->sc_codecctl5);
    506 		delay(2);
    507 		awacs_write_codec(sc, sc->sc_codecctl1);
    508 		awacs_write_codec(sc, sc->sc_codecctl7);
    509 	}
    510 
    511 	/* default input from CD */
    512 	sc->sc_record_source = 1 << 0;
    513 	sc->sc_codecctl0 &= ~AWACS_INPUT_MASK;
    514 	sc->sc_codecctl0 |= AWACS_INPUT_CD;
    515 	awacs_write_codec(sc, sc->sc_codecctl0);
    516 
    517 	/* Enable interrupts and looping mode. */
    518 	/* XXX ... */
    519 
    520 	sc->sc_codecctl1 |= AWACS_LOOP_THROUGH;
    521 	if (sc->sc_need_parallel_output)
    522 		sc->sc_codecctl1 |= AWACS_PARALLEL_OUTPUT;
    523 	awacs_write_codec(sc, sc->sc_codecctl1);
    524 
    525 #if NSGSMIX > 0
    526 	sc->sc_sgsmix = NULL;
    527 #endif
    528 	sc->sc_have_perch = 0;
    529 	if (perch != -1) {
    530 
    531 		len = OF_getprop(perch, "compatible", compat, 255);
    532 		if (len > 0) {
    533 			printf("%s: found '%s' personality card\n",
    534 			    device_xname(sc->sc_dev), compat);
    535 			sc->sc_have_perch = 1;
    536 			config_finalize_register(sc->sc_dev,
    537 			    awacs_setup_sgsmix);
    538 		}
    539 	}
    540 
    541 	/* Set initial volume[s] */
    542 	awacs_set_volume(sc, 144, 144);
    543 	awacs_set_loopthrough_volume(sc, 0, 0);
    544 
    545 	audio_attach_mi(&awacs_hw_if, sc, sc->sc_dev);
    546 
    547 	if (kthread_create(PRI_NONE, 0, NULL, awacs_thread, sc,
    548 	    &sc->sc_thread, "%s", "awacs") != 0) {
    549 		printf("awacs: unable to create event kthread");
    550 	}
    551 	pmf_device_register(sc->sc_dev, NULL, NULL);
    552 }
    553 
    554 static int
    555 awacs_setup_sgsmix(device_t cookie)
    556 {
    557 	struct awacs_softc *sc = device_private(cookie);
    558 #if NSGSMIX > 0
    559 	device_t dv;
    560 	deviter_t di;
    561 #endif
    562 
    563 	if (!sc->sc_have_perch)
    564 		return 0;
    565 #if NSGSMIX > 0
    566 	/* look for sgsmix */
    567 	for (dv = deviter_first(&di, DEVITER_F_ROOT_FIRST);
    568 	     dv != NULL;
    569 	     dv = deviter_next(&di)) {
    570 		if (device_is_a(dv, "sgsmix")) {
    571 			sc->sc_sgsmix = dv;
    572 			break;
    573 		}
    574 	}
    575 	deviter_release(&di);
    576 	if (sc->sc_sgsmix == NULL)
    577 		return 0;
    578 
    579 	printf("%s: using %s\n", device_xname(sc->sc_dev),
    580 	    device_xname(sc->sc_sgsmix));
    581 
    582 	sc->sc_codecctl1 &= ~AWACS_MUTE_HEADPHONE;
    583 	awacs_write_codec(sc, sc->sc_codecctl1);
    584 
    585 	mutex_enter(&sc->sc_intr_lock);
    586 	awacs_select_output(sc, sc->sc_output_mask);
    587 	awacs_set_volume(sc, sc->vol_l, sc->vol_r);
    588 	awacs_set_bass(sc, 128);
    589 	awacs_set_treble(sc, 128);
    590 	cv_signal(&sc->sc_event);
    591 	mutex_exit(&sc->sc_intr_lock);
    592 #endif
    593 	return 0;
    594 }
    595 
    596 
    597 static inline u_int
    598 awacs_read_reg(struct awacs_softc *sc, int reg)
    599 {
    600 
    601 	return bus_space_read_4(sc->sc_tag, sc->sc_regh, reg);
    602 }
    603 
    604 static inline void
    605 awacs_write_reg(struct awacs_softc *sc, int reg, int val)
    606 {
    607 
    608 	bus_space_write_4(sc->sc_tag, sc->sc_regh, reg, val);
    609 }
    610 
    611 static void
    612 awacs_write_codec(struct awacs_softc *sc, int value)
    613 {
    614 
    615 	do {
    616 		delay(100);
    617 	} while (awacs_read_reg(sc, AWACS_CODEC_CTRL) & AWACS_CODEC_BUSY);
    618 
    619 	awacs_write_reg(sc, AWACS_CODEC_CTRL, value);
    620 
    621 	do {
    622 		delay(100);
    623 	} while (awacs_read_reg(sc, AWACS_CODEC_CTRL) & AWACS_CODEC_BUSY);
    624 }
    625 
    626 static int
    627 awacs_intr(void *v)
    628 {
    629 	struct awacs_softc *sc;
    630 	struct dbdma_command *cmd;
    631 	int count;
    632 	int status;
    633 
    634 	sc = v;
    635 	mutex_spin_enter(&sc->sc_intr_lock);
    636 	cmd = sc->sc_odmacmd;
    637 	count = sc->sc_opages;
    638 	/* Fill used buffer(s). */
    639 	while (count-- > 0) {
    640 		/* if DBDMA_INT_ALWAYS */
    641 		if (in16rb(&cmd->d_command) & 0x30) {	/* XXX */
    642 			status = in16rb(&cmd->d_status);
    643 			cmd->d_status = 0;
    644 			if (status)	/* status == 0x8400 */
    645 				if (sc->sc_ointr)
    646 					(*sc->sc_ointr)(sc->sc_oarg);
    647 		}
    648 		cmd++;
    649 	}
    650 	mutex_spin_exit(&sc->sc_intr_lock);
    651 
    652 	return 1;
    653 }
    654 
    655 /*
    656  * Close function is called at splaudio().
    657  */
    658 static void
    659 awacs_close(void *h)
    660 {
    661 	struct awacs_softc *sc;
    662 
    663 	sc = h;
    664 	awacs_halt_output(sc);
    665 	awacs_halt_input(sc);
    666 
    667 	sc->sc_ointr = 0;
    668 	sc->sc_iintr = 0;
    669 }
    670 
    671 static int
    672 awacs_query_encoding(void *h, struct audio_encoding *ae)
    673 {
    674 	struct awacs_softc *sc;
    675 
    676 	sc = h;
    677 	ae->flags = AUDIO_ENCODINGFLAG_EMULATED;
    678 
    679 	switch (ae->index) {
    680 	case 0:
    681 		strcpy(ae->name, AudioEslinear);
    682 		ae->encoding = AUDIO_ENCODING_SLINEAR;
    683 		ae->precision = 16;
    684 		ae->flags = 0;
    685 		return 0;
    686 	case 1:
    687 		strcpy(ae->name, AudioEslinear_be);
    688 		ae->encoding = AUDIO_ENCODING_SLINEAR_BE;
    689 		ae->precision = 16;
    690 		ae->flags = 0;
    691 		return 0;
    692 	case 2:
    693 		strcpy(ae->name, AudioEslinear_le);
    694 		ae->encoding = AUDIO_ENCODING_SLINEAR_LE;
    695 		ae->precision = 16;
    696 		if (sc->sc_flags & AWACS_CAP_BSWAP)
    697 			ae->flags = 0;
    698 		return 0;
    699 	case 3:
    700 		strcpy(ae->name, AudioEulinear_be);
    701 		ae->encoding = AUDIO_ENCODING_ULINEAR_BE;
    702 		ae->precision = 16;
    703 		return 0;
    704 	case 4:
    705 		strcpy(ae->name, AudioEulinear_le);
    706 		ae->encoding = AUDIO_ENCODING_ULINEAR_LE;
    707 		ae->precision = 16;
    708 		return 0;
    709 	case 5:
    710 		strcpy(ae->name, AudioEmulaw);
    711 		ae->encoding = AUDIO_ENCODING_ULAW;
    712 		ae->precision = 8;
    713 		return 0;
    714 	case 6:
    715 		strcpy(ae->name, AudioEalaw);
    716 		ae->encoding = AUDIO_ENCODING_ALAW;
    717 		ae->precision = 8;
    718 		return 0;
    719 	default:
    720 		return EINVAL;
    721 	}
    722 }
    723 
    724 static int
    725 awacs_set_params(void *h, int setmode, int usemode,
    726 		 audio_params_t *play, audio_params_t *rec,
    727 		 stream_filter_list_t *pfil, stream_filter_list_t *rfil)
    728 {
    729 	struct awacs_softc *sc;
    730 	audio_params_t *p;
    731 	stream_filter_list_t *fil;
    732 	int mode, i;
    733 
    734 	sc = h;
    735 	p = NULL;
    736 	/*
    737 	 * This device only has one clock, so make the sample rates match.
    738 	 */
    739 	if (play->sample_rate != rec->sample_rate &&
    740 	    usemode == (AUMODE_PLAY | AUMODE_RECORD)) {
    741 		if (setmode == AUMODE_PLAY) {
    742 			rec->sample_rate = play->sample_rate;
    743 			setmode |= AUMODE_RECORD;
    744 		} else if (setmode == AUMODE_RECORD) {
    745 			play->sample_rate = rec->sample_rate;
    746 			setmode |= AUMODE_PLAY;
    747 		} else
    748 			return EINVAL;
    749 	}
    750 
    751 	for (mode = AUMODE_RECORD; mode != -1;
    752 	     mode = mode == AUMODE_RECORD ? AUMODE_PLAY : -1) {
    753 		if ((setmode & mode) == 0)
    754 			continue;
    755 
    756 		p = mode == AUMODE_PLAY ? play : rec;
    757 		fil = mode == AUMODE_PLAY ? pfil : rfil;
    758 		switch (p->sample_rate) {
    759 		case 48000:	/* aurateconv */
    760 		case 44100:
    761 		case 29400:
    762 		case 22050:
    763 		case 17640:
    764 		case 14700:
    765 		case 11025:
    766 		case 8820:
    767 		case 8000:	/* aurateconv */
    768 		case 7350:
    769 			break;
    770 		default:
    771 			return EINVAL;
    772 		}
    773 		awacs_write_reg(sc, AWACS_BYTE_SWAP, 0);
    774 		i = auconv_set_converter(sc->sc_formats, AWACS_NFORMATS,
    775 					 mode, p, true, fil);
    776 		if (i < 0)
    777 			return EINVAL;
    778 		if (i == AWACS_FORMATS_LE)
    779 			awacs_write_reg(sc, AWACS_BYTE_SWAP, 1);
    780 		if (fil->req_size > 0)
    781 			p = &fil->filters[0].param;
    782 		if (awacs_set_rate(sc, p))
    783 			return EINVAL;
    784 	}
    785 	return 0;
    786 }
    787 
    788 static int
    789 awacs_round_blocksize(void *h, int size, int mode, const audio_params_t *param)
    790 {
    791 
    792 	if (size < PAGE_SIZE)
    793 		size = PAGE_SIZE;
    794 	return size & ~PGOFSET;
    795 }
    796 
    797 static int
    798 awacs_halt_output(void *h)
    799 {
    800 	struct awacs_softc *sc;
    801 
    802 	sc = h;
    803 	dbdma_stop(sc->sc_odma);
    804 	dbdma_reset(sc->sc_odma);
    805 	return 0;
    806 }
    807 
    808 static int
    809 awacs_halt_input(void *h)
    810 {
    811 	struct awacs_softc *sc;
    812 
    813 	sc = h;
    814 	dbdma_stop(sc->sc_idma);
    815 	dbdma_reset(sc->sc_idma);
    816 	return 0;
    817 }
    818 
    819 static int
    820 awacs_getdev(void *h, struct audio_device *retp)
    821 {
    822 
    823 	*retp = awacs_device;
    824 	return 0;
    825 }
    826 
    827 enum {
    828 	AWACS_MONITOR_CLASS,
    829 	AWACS_OUTPUT_CLASS,
    830 	AWACS_RECORD_CLASS,
    831 	AWACS_OUTPUT_SELECT,
    832 	AWACS_VOL_MASTER,
    833 	AWACS_INPUT_SELECT,
    834 	AWACS_VOL_INPUT,
    835 	AWACS_VOL_MONITOR,
    836 	AWACS_BASS,
    837 	AWACS_TREBLE,
    838 	AWACS_ENUM_LAST
    839 };
    840 
    841 static int
    842 awacs_set_port(void *h, mixer_ctrl_t *mc)
    843 {
    844 	struct awacs_softc *sc;
    845 	int l, r;
    846 
    847 	DPRINTF("awacs_set_port dev = %d, type = %d\n", mc->dev, mc->type);
    848 	sc = h;
    849 	l = mc->un.value.level[AUDIO_MIXER_LEVEL_LEFT];
    850 	r = mc->un.value.level[AUDIO_MIXER_LEVEL_RIGHT];
    851 
    852 	switch (mc->dev) {
    853 	case AWACS_OUTPUT_SELECT:
    854 		/* No change necessary? */
    855 		if (mc->un.mask == sc->sc_output_mask)
    856 			return 0;
    857 		mutex_enter(&sc->sc_intr_lock);
    858 		awacs_select_output(sc, mc->un.mask);
    859 		mutex_exit(&sc->sc_intr_lock);
    860 		return 0;
    861 
    862 	case AWACS_VOL_MASTER:
    863 		mutex_enter(&sc->sc_intr_lock);
    864 		awacs_set_volume(sc, l, r);
    865 		mutex_exit(&sc->sc_intr_lock);
    866 		return 0;
    867 
    868 	case AWACS_INPUT_SELECT:
    869 		/* no change necessary? */
    870 		if (mc->un.mask == sc->sc_record_source)
    871 			return 0;
    872 		switch (mc->un.mask) {
    873 		case 1 << 0: /* CD */
    874 			sc->sc_codecctl0 &= ~AWACS_INPUT_MASK;
    875 			sc->sc_codecctl0 |= AWACS_INPUT_CD;
    876 			awacs_write_codec(sc, sc->sc_codecctl0);
    877 			break;
    878 		case 1 << 1: /* microphone */
    879 			sc->sc_codecctl0 &= ~AWACS_INPUT_MASK;
    880 			sc->sc_codecctl0 |= AWACS_INPUT_MICROPHONE;
    881 			awacs_write_codec(sc, sc->sc_codecctl0);
    882 			break;
    883 		case 1 << 2: /* line in */
    884 			sc->sc_codecctl0 &= ~AWACS_INPUT_MASK;
    885 			sc->sc_codecctl0 |= AWACS_INPUT_LINE;
    886 			awacs_write_codec(sc, sc->sc_codecctl0);
    887 			break;
    888 		default: /* invalid argument */
    889 			return EINVAL;
    890 		}
    891 		sc->sc_record_source = mc->un.mask;
    892 		return 0;
    893 
    894 	case AWACS_VOL_INPUT:
    895 		sc->sc_codecctl0 &= ~0xff;
    896 		sc->sc_codecctl0 |= (l & 0xf0) | (r >> 4);
    897 		awacs_write_codec(sc, sc->sc_codecctl0);
    898 		return 0;
    899 
    900 	case AWACS_VOL_MONITOR:
    901 		awacs_set_loopthrough_volume(sc, l, r);
    902 		return 0;
    903 
    904 #if NSGSMIX > 0
    905 	case AWACS_BASS:
    906 		mutex_enter(&sc->sc_intr_lock);
    907 		awacs_set_bass(sc, l);
    908 		mutex_exit(&sc->sc_intr_lock);
    909 		return 0;
    910 
    911 	case AWACS_TREBLE:
    912 		mutex_enter(&sc->sc_intr_lock);
    913 		awacs_set_treble(sc, l);
    914 		mutex_exit(&sc->sc_intr_lock);
    915 		return 0;
    916 #endif
    917 	}
    918 
    919 	return ENXIO;
    920 }
    921 
    922 static int
    923 awacs_get_port(void *h, mixer_ctrl_t *mc)
    924 {
    925 	struct awacs_softc *sc;
    926 	int l, r, vol;
    927 
    928 	sc = h;
    929 	switch (mc->dev) {
    930 	case AWACS_OUTPUT_SELECT:
    931 		mc->un.mask = sc->sc_output_mask;
    932 		return 0;
    933 
    934 	case AWACS_VOL_MASTER:
    935 		mc->un.value.level[AUDIO_MIXER_LEVEL_LEFT] = sc->vol_l;
    936 		mc->un.value.level[AUDIO_MIXER_LEVEL_RIGHT] = sc->vol_r;
    937 		return 0;
    938 
    939 	case AWACS_INPUT_SELECT:
    940 		mc->un.mask = sc->sc_record_source;
    941 		return 0;
    942 
    943 	case AWACS_VOL_INPUT:
    944 		vol = sc->sc_codecctl0 & 0xff;
    945 		l = (vol & 0xf0);
    946 		r = (vol & 0x0f) << 4;
    947 		mc->un.value.level[AUDIO_MIXER_LEVEL_LEFT] = l;
    948 		mc->un.value.level[AUDIO_MIXER_LEVEL_RIGHT] = r;
    949 		return 0;
    950 
    951 	case AWACS_VOL_MONITOR:
    952 		vol = sc->sc_codecctl5 & 0x3cf;
    953 		l = (vol & 0x3c0) >> 6;
    954 		r = vol & 0xf;
    955 		mc->un.value.level[AUDIO_MIXER_LEVEL_LEFT] = (15 - l) << 4;
    956 		mc->un.value.level[AUDIO_MIXER_LEVEL_RIGHT] = (15 - r) << 4;
    957 		return 0;
    958 
    959 #if NSGSMIX > 0
    960 	case AWACS_BASS:
    961 		mc->un.value.level[AUDIO_MIXER_LEVEL_MONO] = sc->sc_bass;
    962 		return 0;
    963 
    964 	case AWACS_TREBLE:
    965 		mc->un.value.level[AUDIO_MIXER_LEVEL_MONO] = sc->sc_treble;
    966 		return 0;
    967 #endif
    968 
    969 	default:
    970 		return ENXIO;
    971 	}
    972 
    973 	return 0;
    974 }
    975 
    976 static int
    977 awacs_query_devinfo(void *h, mixer_devinfo_t *dip)
    978 {
    979 #if NSGSMIX > 0
    980 	struct awacs_softc *sc = h;
    981 #endif
    982 
    983 	switch (dip->index) {
    984 
    985 	case AWACS_OUTPUT_SELECT:
    986 		dip->mixer_class = AWACS_OUTPUT_CLASS;
    987 		strcpy(dip->label.name, AudioNoutput);
    988 		dip->type = AUDIO_MIXER_SET;
    989 		dip->prev = dip->next = AUDIO_MIXER_LAST;
    990 		dip->un.s.num_mem = 2;
    991 		strcpy(dip->un.s.member[0].label.name, AudioNspeaker);
    992 		dip->un.s.member[0].mask = 1 << 0;
    993 		strcpy(dip->un.s.member[1].label.name, AudioNheadphone);
    994 		dip->un.s.member[1].mask = 1 << 1;
    995 		return 0;
    996 
    997 	case AWACS_VOL_MASTER:
    998 		dip->mixer_class = AWACS_OUTPUT_CLASS;
    999 		strcpy(dip->label.name, AudioNmaster);
   1000 		dip->type = AUDIO_MIXER_VALUE;
   1001 		dip->prev = dip->next = AUDIO_MIXER_LAST;
   1002 		dip->un.v.num_channels = 2;
   1003 		dip->un.v.delta = 16;
   1004 		strcpy(dip->un.v.units.name, AudioNvolume);
   1005 		return 0;
   1006 
   1007 	case AWACS_VOL_MONITOR:
   1008 		dip->mixer_class = AWACS_MONITOR_CLASS;
   1009 		strcpy(dip->label.name, AudioNmonitor);
   1010 		dip->type = AUDIO_MIXER_VALUE;
   1011 		dip->prev = dip->next = AUDIO_MIXER_LAST;
   1012 		dip->un.v.num_channels = 2;
   1013 		strcpy(dip->un.v.units.name, AudioNvolume);
   1014 		return 0;
   1015 
   1016 #if NSGSMIX > 0
   1017 	case AWACS_BASS:
   1018 		if (sc->sc_sgsmix == NULL)
   1019 			return ENXIO;
   1020 		dip->mixer_class = AWACS_OUTPUT_CLASS;
   1021 		strcpy(dip->label.name, AudioNbass);
   1022 		dip->type = AUDIO_MIXER_VALUE;
   1023 		dip->prev = dip->next = AUDIO_MIXER_LAST;
   1024 		dip->un.v.num_channels = 1;
   1025 		strcpy(dip->un.v.units.name, AudioNbass);
   1026 		return 0;
   1027 
   1028 	case AWACS_TREBLE:
   1029 		if (sc->sc_sgsmix == NULL)
   1030 			return ENXIO;
   1031 		dip->mixer_class = AWACS_OUTPUT_CLASS;
   1032 		strcpy(dip->label.name, AudioNtreble);
   1033 		dip->type = AUDIO_MIXER_VALUE;
   1034 		dip->prev = dip->next = AUDIO_MIXER_LAST;
   1035 		dip->un.v.num_channels = 1;
   1036 		strcpy(dip->un.v.units.name, AudioNtreble);
   1037 		return 0;
   1038 #endif
   1039 
   1040 	case AWACS_INPUT_SELECT:
   1041 		dip->mixer_class = AWACS_RECORD_CLASS;
   1042 		strcpy(dip->label.name, AudioNsource);
   1043 		dip->type = AUDIO_MIXER_SET;
   1044 		dip->prev = dip->next = AUDIO_MIXER_LAST;
   1045 		dip->un.s.num_mem = 3;
   1046 		strcpy(dip->un.s.member[0].label.name, AudioNcd);
   1047 		dip->un.s.member[0].mask = 1 << 0;
   1048 		strcpy(dip->un.s.member[1].label.name, AudioNmicrophone);
   1049 		dip->un.s.member[1].mask = 1 << 1;
   1050 		strcpy(dip->un.s.member[2].label.name, AudioNline);
   1051 		dip->un.s.member[2].mask = 1 << 2;
   1052 		return 0;
   1053 
   1054 	case AWACS_VOL_INPUT:
   1055 		dip->mixer_class = AWACS_RECORD_CLASS;
   1056 		strcpy(dip->label.name, AudioNrecord);
   1057 		dip->type = AUDIO_MIXER_VALUE;
   1058 		dip->prev = dip->next = AUDIO_MIXER_LAST;
   1059 		dip->un.v.num_channels = 2;
   1060 		strcpy(dip->un.v.units.name, AudioNvolume);
   1061 		return 0;
   1062 
   1063 	case AWACS_MONITOR_CLASS:
   1064 		dip->mixer_class = AWACS_MONITOR_CLASS;
   1065 		strcpy(dip->label.name, AudioCmonitor);
   1066 		dip->type = AUDIO_MIXER_CLASS;
   1067 		dip->next = dip->prev = AUDIO_MIXER_LAST;
   1068 		return 0;
   1069 
   1070 	case AWACS_OUTPUT_CLASS:
   1071 		dip->mixer_class = AWACS_OUTPUT_CLASS;
   1072 		strcpy(dip->label.name, AudioCoutputs);
   1073 		dip->type = AUDIO_MIXER_CLASS;
   1074 		dip->next = dip->prev = AUDIO_MIXER_LAST;
   1075 		return 0;
   1076 
   1077 	case AWACS_RECORD_CLASS:
   1078 		dip->mixer_class = AWACS_RECORD_CLASS;
   1079 		strcpy(dip->label.name, AudioCrecord);
   1080 		dip->type = AUDIO_MIXER_CLASS;
   1081 		dip->next = dip->prev = AUDIO_MIXER_LAST;
   1082 		return 0;
   1083 	}
   1084 
   1085 	return ENXIO;
   1086 }
   1087 
   1088 static size_t
   1089 awacs_round_buffersize(void *h, int dir, size_t size)
   1090 {
   1091 
   1092 	if (size > 65536)
   1093 		size = 65536;
   1094 	return size;
   1095 }
   1096 
   1097 static paddr_t
   1098 awacs_mappage(void *h, void *mem, off_t off, int prot)
   1099 {
   1100 
   1101 	if (off < 0)
   1102 		return -1;
   1103 	return -1;	/* XXX */
   1104 }
   1105 
   1106 static int
   1107 awacs_get_props(void *h)
   1108 {
   1109 	return AUDIO_PROP_FULLDUPLEX /* | AUDIO_PROP_MMAP */;
   1110 }
   1111 
   1112 static int
   1113 awacs_trigger_output(void *h, void *start, void *end, int bsize,
   1114 		     void (*intr)(void *), void *arg,
   1115 		     const audio_params_t *param)
   1116 {
   1117 	struct awacs_softc *sc;
   1118 	struct dbdma_command *cmd;
   1119 	vaddr_t va;
   1120 	int i, len, intmode;
   1121 
   1122 	DPRINTF("trigger_output %p %p 0x%x\n", start, end, bsize);
   1123 	sc = h;
   1124 	cmd = sc->sc_odmacmd;
   1125 	sc->sc_ointr = intr;
   1126 	sc->sc_oarg = arg;
   1127 	sc->sc_opages = ((char *)end - (char *)start) / PAGE_SIZE;
   1128 
   1129 #ifdef DIAGNOSTIC
   1130 	if (sc->sc_opages > 16)
   1131 		panic("awacs_trigger_output");
   1132 #endif
   1133 
   1134 	va = (vaddr_t)start;
   1135 	len = 0;
   1136 	for (i = sc->sc_opages; i > 0; i--) {
   1137 		len += PAGE_SIZE;
   1138 		if (len < bsize)
   1139 			intmode = DBDMA_INT_NEVER;
   1140 		else {
   1141 			len = 0;
   1142 			intmode = DBDMA_INT_ALWAYS;
   1143 		}
   1144 
   1145 		DBDMA_BUILD(cmd, DBDMA_CMD_OUT_MORE, 0, PAGE_SIZE, vtophys(va),
   1146 			intmode, DBDMA_WAIT_NEVER, DBDMA_BRANCH_NEVER);
   1147 		va += PAGE_SIZE;
   1148 		cmd++;
   1149 	}
   1150 
   1151 	DBDMA_BUILD(cmd, DBDMA_CMD_NOP, 0, 0, 0,
   1152 		DBDMA_INT_NEVER, DBDMA_WAIT_NEVER, DBDMA_BRANCH_ALWAYS);
   1153 	out32rb(&cmd->d_cmddep, vtophys((vaddr_t)sc->sc_odmacmd));
   1154 
   1155 	dbdma_start(sc->sc_odma, sc->sc_odmacmd);
   1156 
   1157 	return 0;
   1158 }
   1159 
   1160 static int
   1161 awacs_trigger_input(void *h, void *start, void *end, int bsize,
   1162 		    void (*intr)(void *), void *arg,
   1163 		    const audio_params_t *param)
   1164 {
   1165 
   1166 	DPRINTF("awacs_trigger_input called\n");
   1167 	return 1;
   1168 }
   1169 
   1170 static void
   1171 awacs_get_locks(void *opaque, kmutex_t **intr, kmutex_t **thread)
   1172 {
   1173 	struct awacs_softc *sc = opaque;
   1174 
   1175 	*intr = &sc->sc_intr_lock;
   1176 	*thread = &sc->sc_lock;
   1177 }
   1178 
   1179 static void
   1180 awacs_select_output(struct awacs_softc *sc, int mask)
   1181 {
   1182 
   1183 #if NSGSMIX > 0
   1184 	if (sc->sc_sgsmix) {
   1185 		if (mask & OUTPUT_HEADPHONES) {
   1186 			/* mute speakers */
   1187 			sgsmix_set_speaker_vol(sc->sc_sgsmix, 0, 0);
   1188 			sgsmix_set_headphone_vol(sc->sc_sgsmix,
   1189 			    sc->vol_l, sc->vol_r);
   1190 		}
   1191 		if (mask & OUTPUT_SPEAKER) {
   1192 			/* mute headphones */
   1193 			sgsmix_set_speaker_vol(sc->sc_sgsmix,
   1194 			    sc->vol_l, sc->vol_r);
   1195 			sgsmix_set_headphone_vol(sc->sc_sgsmix, 0, 0);
   1196 		}
   1197 	} else {
   1198 #endif
   1199 	sc->sc_codecctl1 |= AWACS_MUTE_SPEAKER | AWACS_MUTE_HEADPHONE;
   1200 	if ((sc->vol_l > 0) || (sc->vol_r > 0)) {
   1201 		if (mask & OUTPUT_SPEAKER)
   1202 			sc->sc_codecctl1 &= ~AWACS_MUTE_SPEAKER;
   1203 		if (mask & OUTPUT_HEADPHONES)
   1204 			sc->sc_codecctl1 &= ~AWACS_MUTE_HEADPHONE;
   1205 	}
   1206 	awacs_write_codec(sc, sc->sc_codecctl1);
   1207 #if NSGSMIX > 0
   1208 	}
   1209 #endif
   1210 	sc->sc_output_mask = mask;
   1211 }
   1212 
   1213 static void
   1214 awacs_set_speaker_volume(struct awacs_softc *sc, int left, int right)
   1215 {
   1216 
   1217 #if NSGSMIX > 0
   1218 	if (sc->sc_sgsmix) {
   1219 		if (sc->sc_output_mask & OUTPUT_SPEAKER)
   1220 			sgsmix_set_speaker_vol(sc->sc_sgsmix, left, right);
   1221 	} else
   1222 #endif
   1223 	{
   1224 		int lval;
   1225 		int rval;
   1226 		uint32_t codecctl = sc->sc_codecctl1;
   1227 
   1228 		lval = 15 - ((left  & 0xf0) >> 4);
   1229 		rval = 15 - ((right & 0xf0) >> 4);
   1230 		DPRINTF("speaker_volume %d %d\n", lval, rval);
   1231 
   1232 		sc->sc_codecctl4 &= ~0x3cf;
   1233 		sc->sc_codecctl4 |= (lval << 6) | rval;
   1234 		awacs_write_codec(sc, sc->sc_codecctl4);
   1235 		if ((left == 0) && (right == 0)) {
   1236 			/*
   1237 			 * max. attenuation doesn't mean silence so we need to
   1238 			 * mute the output channel here
   1239 			 */
   1240 			codecctl |= AWACS_MUTE_SPEAKER;
   1241 		} else if (sc->sc_output_mask & OUTPUT_SPEAKER) {
   1242 			codecctl &= ~AWACS_MUTE_SPEAKER;
   1243 		}
   1244 
   1245 		if (codecctl != sc->sc_codecctl1) {
   1246 
   1247 			sc->sc_codecctl1 = codecctl;
   1248 			awacs_write_codec(sc, sc->sc_codecctl1);
   1249 		}
   1250 	}
   1251 }
   1252 
   1253 static void
   1254 awacs_set_ext_volume(struct awacs_softc *sc, int left, int right)
   1255 {
   1256 
   1257 #if NSGSMIX > 0
   1258 	if (sc->sc_sgsmix) {
   1259 		if (sc->sc_output_mask & OUTPUT_HEADPHONES)
   1260 			sgsmix_set_headphone_vol(sc->sc_sgsmix, left, right);
   1261 	} else
   1262 #endif
   1263 	{
   1264 		int lval;
   1265 		int rval;
   1266 		uint32_t codecctl = sc->sc_codecctl1;
   1267 
   1268 		lval = 15 - ((left  & 0xf0) >> 4);
   1269 		rval = 15 - ((right & 0xf0) >> 4);
   1270 		DPRINTF("ext_volume %d %d\n", lval, rval);
   1271 
   1272 		sc->sc_codecctl2 &= ~0x3cf;
   1273 		sc->sc_codecctl2 |= (lval << 6) | rval;
   1274 		awacs_write_codec(sc, sc->sc_codecctl2);
   1275 
   1276 		if ((left == 0) && (right == 0)) {
   1277 			/*
   1278 			 * max. attenuation doesn't mean silence so we need to
   1279 			 * mute the output channel here
   1280 			 */
   1281 			codecctl |= AWACS_MUTE_HEADPHONE;
   1282 		} else if (sc->sc_output_mask & OUTPUT_HEADPHONES) {
   1283 
   1284 			codecctl &= ~AWACS_MUTE_HEADPHONE;
   1285 		}
   1286 
   1287 		if (codecctl != sc->sc_codecctl1) {
   1288 
   1289 			sc->sc_codecctl1 = codecctl;
   1290 			awacs_write_codec(sc, sc->sc_codecctl1);
   1291 		}
   1292 	}
   1293 }
   1294 
   1295 void
   1296 awacs_set_volume(struct awacs_softc *sc, int left, int right)
   1297 {
   1298 
   1299 	awacs_set_ext_volume(sc, left, right);
   1300 	awacs_set_speaker_volume(sc, left, right);
   1301 
   1302 	sc->vol_l = left;
   1303 	sc->vol_r = right;
   1304 }
   1305 
   1306 #if NSGSMIX > 0
   1307 static void
   1308 awacs_set_bass(struct awacs_softc *sc, int bass)
   1309 {
   1310 
   1311 	if (sc->sc_bass == bass)
   1312 		return;
   1313 
   1314 	sc->sc_bass = bass;
   1315 	if (sc->sc_sgsmix)
   1316 		sgsmix_set_bass_treble(sc->sc_sgsmix, sc->sc_bass,
   1317 		    sc->sc_treble);
   1318 }
   1319 
   1320 static void
   1321 awacs_set_treble(struct awacs_softc *sc, int treble)
   1322 {
   1323 
   1324 	if (sc->sc_treble == treble)
   1325 		return;
   1326 
   1327 	sc->sc_treble = treble;
   1328 	if (sc->sc_sgsmix)
   1329 		sgsmix_set_bass_treble(sc->sc_sgsmix, sc->sc_bass,
   1330 		    sc->sc_treble);
   1331 }
   1332 #endif
   1333 
   1334 void
   1335 awacs_set_loopthrough_volume(struct awacs_softc *sc, int left, int right)
   1336 {
   1337 	int lval;
   1338 	int rval;
   1339 
   1340 	lval = 15 - ((left  & 0xff) >> 4);
   1341 	rval = 15 - ((right & 0xff) >> 4);
   1342 	DPRINTF("loopthrough_volume %d %d\n", lval, rval);
   1343 
   1344 	sc->sc_codecctl5 &= ~0x3cf;
   1345 	sc->sc_codecctl5 |= (lval << 6) | rval;
   1346 	awacs_write_codec(sc, sc->sc_codecctl5);
   1347 }
   1348 
   1349 int
   1350 awacs_set_rate(struct awacs_softc *sc, const audio_params_t *p)
   1351 {
   1352 	int c;
   1353 
   1354 	switch (p->sample_rate) {
   1355 	case 44100:
   1356 		c = AWACS_RATE_44100;
   1357 		break;
   1358 	case 29400:
   1359 		c = AWACS_RATE_29400;
   1360 		break;
   1361 	case 22050:
   1362 		c = AWACS_RATE_22050;
   1363 		break;
   1364 	case 17640:
   1365 		c = AWACS_RATE_17640;
   1366 		break;
   1367 	case 14700:
   1368 		c = AWACS_RATE_14700;
   1369 		break;
   1370 	case 11025:
   1371 		c = AWACS_RATE_11025;
   1372 		break;
   1373 	case 8820:
   1374 		c = AWACS_RATE_8820;
   1375 		break;
   1376 	case 7350:
   1377 		c = AWACS_RATE_7350;
   1378 		break;
   1379 	default:
   1380 		return -1;
   1381 	}
   1382 
   1383 	sc->sc_soundctl &= ~AWACS_RATE_MASK;
   1384 	sc->sc_soundctl |= c;
   1385 	awacs_write_reg(sc, AWACS_SOUND_CTRL, sc->sc_soundctl);
   1386 
   1387 	return 0;
   1388 }
   1389 
   1390 static int
   1391 awacs_check_headphones(struct awacs_softc *sc)
   1392 {
   1393 	uint32_t reg;
   1394 	reg = awacs_read_reg(sc, AWACS_CODEC_STATUS);
   1395 	DPRINTF("%s: codec status reg %08x\n", device_xname(sc->sc_dev), reg);
   1396 	return ((reg & sc->sc_headphones_mask) == sc->sc_headphones_in);
   1397 }
   1398 
   1399 static int
   1400 awacs_status_intr(void *cookie)
   1401 {
   1402 	struct awacs_softc *sc = cookie;
   1403 	int mask;
   1404 
   1405 	mutex_spin_enter(&sc->sc_intr_lock);
   1406 	mask = awacs_check_headphones(sc) ? OUTPUT_HEADPHONES : OUTPUT_SPEAKER;
   1407 	if (mask != sc->sc_output_mask) {
   1408 
   1409 		sc->sc_output_wanted = mask;
   1410 		cv_signal(&sc->sc_event);
   1411 	}
   1412 	/* clear the interrupt */
   1413 	awacs_write_reg(sc, AWACS_SOUND_CTRL, sc->sc_soundctl | AWACS_PORTCHG);
   1414 	mutex_spin_exit(&sc->sc_intr_lock);
   1415 	return 1;
   1416 }
   1417 
   1418 static void
   1419 awacs_thread(void *cookie)
   1420 {
   1421 	struct awacs_softc *sc = cookie;
   1422 
   1423 	mutex_enter(&sc->sc_intr_lock);
   1424 	while (1) {
   1425 		cv_timedwait(&sc->sc_event, &sc->sc_intr_lock, hz);
   1426 		if (sc->sc_output_wanted == sc->sc_output_mask)
   1427 			continue;
   1428 
   1429 		awacs_select_output(sc, sc->sc_output_wanted);
   1430 		DPRINTF("%s: switching to %s\n", device_xname(sc->sc_dev),
   1431 		    (sc->sc_output_wanted & OUTPUT_SPEAKER) ?
   1432 		    "speaker" : "headphones");
   1433 	}
   1434 }
   1435