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awacs.c revision 1.46.2.1
      1 /*	$NetBSD: awacs.c,v 1.46.2.1 2019/04/21 05:11:21 isaki 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 1.46.2.1 2019/04/21 05:11:21 isaki 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 	.close			= awacs_close,
    167 	.query_encoding		= awacs_query_encoding,
    168 	.set_params		= awacs_set_params,
    169 	.round_blocksize	= awacs_round_blocksize,
    170 	.halt_output		= awacs_halt_output,
    171 	.halt_input		= awacs_halt_input,
    172 	.getdev			= awacs_getdev,
    173 	.set_port		= awacs_set_port,
    174 	.get_port		= awacs_get_port,
    175 	.query_devinfo		= awacs_query_devinfo,
    176 	.round_buffersize	= awacs_round_buffersize,
    177 	.mappage		= awacs_mappage,
    178 	.get_props		= awacs_get_props,
    179 	.trigger_output		= awacs_trigger_output,
    180 	.trigger_input		= awacs_trigger_input,
    181 	.get_locks		= awacs_get_locks,
    182 };
    183 
    184 struct audio_device awacs_device = {
    185 	"AWACS",
    186 	"",
    187 	"awacs"
    188 };
    189 
    190 #define AWACS_NFORMATS		2
    191 #define AWACS_FORMATS_LE	0
    192 #define AWACS_FORMAT(enc) \
    193 	{ \
    194 		.mode		= AUMODE_PLAY | AUMODE_RECORD, \
    195 		.encoding	= (enc), \
    196 		.validbits	= 16, \
    197 		.precision	= 16, \
    198 		.channels	= 2, \
    199 		.channel_mask	= AUFMT_STEREO, \
    200 		.frequency_type	= 8, \
    201 		.frequency	= \
    202 		    { 7350, 8820, 11025, 14700, 17640, 22050, 29400, 44100 }, \
    203 	}
    204 static const struct audio_format awacs_formats[AWACS_NFORMATS] = {
    205 	AWACS_FORMAT(AUDIO_ENCODING_SLINEAR_LE),
    206 	AWACS_FORMAT(AUDIO_ENCODING_SLINEAR_BE),
    207 };
    208 
    209 /* register offset */
    210 #define AWACS_SOUND_CTRL	0x00
    211 #define AWACS_CODEC_CTRL	0x10
    212 #define AWACS_CODEC_STATUS	0x20
    213 #define AWACS_CLIP_COUNT	0x30
    214 #define AWACS_BYTE_SWAP		0x40
    215 
    216 /* sound control */
    217 #define AWACS_INPUT_SUBFRAME0	0x00000001
    218 #define AWACS_INPUT_SUBFRAME1	0x00000002
    219 #define AWACS_INPUT_SUBFRAME2	0x00000004
    220 #define AWACS_INPUT_SUBFRAME3	0x00000008
    221 
    222 #define AWACS_OUTPUT_SUBFRAME0	0x00000010
    223 #define AWACS_OUTPUT_SUBFRAME1	0x00000020
    224 #define AWACS_OUTPUT_SUBFRAME2	0x00000040
    225 #define AWACS_OUTPUT_SUBFRAME3	0x00000080
    226 
    227 #define AWACS_RATE_44100	0x00000000
    228 #define AWACS_RATE_29400	0x00000100
    229 #define AWACS_RATE_22050	0x00000200
    230 #define AWACS_RATE_17640	0x00000300
    231 #define AWACS_RATE_14700	0x00000400
    232 #define AWACS_RATE_11025	0x00000500
    233 #define AWACS_RATE_8820		0x00000600
    234 #define AWACS_RATE_7350		0x00000700
    235 #define AWACS_RATE_MASK		0x00000700
    236 
    237 #define AWACS_ERROR		0x00000800
    238 #define AWACS_PORTCHG		0x00001000
    239 #define AWACS_INTR_ERROR	0x00002000	/* interrupt on error */
    240 #define AWACS_INTR_PORTCHG	0x00004000	/* interrupt on port change */
    241 
    242 #define AWACS_STATUS_SUBFRAME	0x00018000	/* mask */
    243 
    244 /* codec control */
    245 #define AWACS_CODEC_ADDR0	0x00000000
    246 #define AWACS_CODEC_ADDR1	0x00001000
    247 #define AWACS_CODEC_ADDR2	0x00002000
    248 #define AWACS_CODEC_ADDR4	0x00004000
    249 #define AWACS_CODEC_ADDR5	0x00005000
    250 #define AWACS_CODEC_ADDR6	0x00006000
    251 #define AWACS_CODEC_ADDR7	0x00007000
    252 #define AWACS_CODEC_EMSEL0	0x00000000
    253 #define AWACS_CODEC_EMSEL1	0x00400000
    254 #define AWACS_CODEC_EMSEL2	0x00800000
    255 #define AWACS_CODEC_EMSEL4	0x00c00000
    256 #define AWACS_CODEC_BUSY	0x01000000
    257 
    258 /* cc0 */
    259 #define AWACS_DEFAULT_CD_GAIN	0x000000bb
    260 #define AWACS_INPUT_CD		0x00000200
    261 #define AWACS_INPUT_LINE	0x00000400
    262 #define AWACS_INPUT_MICROPHONE	0x00000800
    263 #define AWACS_INPUT_MASK	0x00000e00
    264 
    265 /* cc1 */
    266 #define AWACS_LOOP_THROUGH	0x00000040
    267 #define AWACS_MUTE_SPEAKER	0x00000080
    268 #define AWACS_MUTE_HEADPHONE	0x00000200
    269 #define AWACS_PARALLEL_OUTPUT	0x00000c00
    270 
    271 /* output */
    272 #define OUTPUT_SPEAKER		1
    273 #define OUTPUT_HEADPHONES	2
    274 
    275 /* codec status */
    276 
    277 static const char *screamer[] = {"screamer", NULL};
    278 
    279 /*
    280  * list machines that have the headphone detect GPIO reversed here.
    281  * so far the only known case is the PowerBook 3400c and similar machines
    282  */
    283 static const char *detect_reversed[] = {"AAPL,3400/2400",
    284 					"AAPL,3500",
    285 					NULL};
    286 
    287 static const char *use_gpio4[] = {	"PowerMac3,1",
    288 					"PowerMac3,2",
    289 					"PowerMac3,3",
    290 					NULL};
    291 
    292 /*
    293  * list of machines that do not require AWACS_PARALLEL_OUTPUT
    294  */
    295 static const char *no_parallel_output[] = {	"PowerBook3,1",
    296 						NULL};
    297 
    298 static int
    299 awacs_match(device_t parent, struct cfdata *match, void *aux)
    300 {
    301 	struct confargs *ca;
    302 
    303 	ca = aux;
    304 
    305 	if (strcmp(ca->ca_name, "awacs") == 0 ||
    306 	    strcmp(ca->ca_name, "davbus") == 0)
    307 		return 100;
    308 
    309 	if (ca->ca_nreg < 24 || ca->ca_nintr < 12)
    310 		return 0;
    311 
    312 	if (strcmp(ca->ca_name, "i2s") == 0)
    313 		return 1;
    314 
    315 	return 0;
    316 }
    317 
    318 static void
    319 awacs_attach(device_t parent, device_t self, void *aux)
    320 {
    321 	struct awacs_softc *sc;
    322 	struct confargs *ca = aux;
    323 	int cirq, oirq, iirq, cirq_type, oirq_type, iirq_type;
    324 	int len = -1, perch;
    325 	int root_node;
    326 	char compat[256];
    327 
    328 	sc = device_private(self);
    329 	sc->sc_dev = self;
    330 	sc->sc_tag = ca->ca_tag;
    331 
    332 	if (bus_space_map(sc->sc_tag, ca->ca_baseaddr + ca->ca_reg[0],
    333 	    ca->ca_reg[1], 0, &sc->sc_regh) != 0)
    334 		printf("couldn't map codec registers\n");
    335 	if (bus_space_map(sc->sc_tag, ca->ca_baseaddr + ca->ca_reg[2],
    336 	    ca->ca_reg[3], BUS_SPACE_MAP_LINEAR, &sc->sc_odmah) != 0)
    337 		printf("couldn't map DMA out registers\n");
    338 	if (bus_space_map(sc->sc_tag, ca->ca_baseaddr + ca->ca_reg[4],
    339 	    ca->ca_reg[5], BUS_SPACE_MAP_LINEAR, &sc->sc_idmah) != 0)
    340 		printf("couldn't map DMA in registers\n");
    341 
    342 	sc->sc_odma = bus_space_vaddr(sc->sc_tag, sc->sc_odmah);
    343 	sc->sc_idma = bus_space_vaddr(sc->sc_tag, sc->sc_idmah);
    344 	sc->sc_odmacmd = dbdma_alloc(20 * sizeof(struct dbdma_command), NULL);
    345 	sc->sc_idmacmd = dbdma_alloc(20 * sizeof(struct dbdma_command), NULL);
    346 
    347 	if (strcmp(ca->ca_name, "i2s") == 0) {
    348 		int node, intr[6];
    349 
    350 		node = OF_child(ca->ca_node);
    351 		if (node == 0) {
    352 			printf("no i2s-a child\n");
    353 			return;
    354 		}
    355 		if (OF_getprop(node, "interrupts", intr, sizeof(intr)) == -1) {
    356 			printf("no interrupt property\n");
    357 			return;
    358 		}
    359 
    360 		cirq = intr[0];
    361 		oirq = intr[2];
    362 		iirq = intr[4];
    363 		cirq_type = intr[1] ? IST_LEVEL : IST_EDGE;
    364 		oirq_type = intr[3] ? IST_LEVEL : IST_EDGE;
    365 		iirq_type = intr[5] ? IST_LEVEL : IST_EDGE;
    366 	} else if (ca->ca_nintr == 24) {
    367 		cirq = ca->ca_intr[0];
    368 		oirq = ca->ca_intr[2];
    369 		iirq = ca->ca_intr[4];
    370 		cirq_type = ca->ca_intr[1] ? IST_LEVEL : IST_EDGE;
    371 		oirq_type = ca->ca_intr[3] ? IST_LEVEL : IST_EDGE;
    372 		iirq_type = ca->ca_intr[5] ? IST_LEVEL : IST_EDGE;
    373 	} else {
    374 		cirq = ca->ca_intr[0];
    375 		oirq = ca->ca_intr[1];
    376 		iirq = ca->ca_intr[2];
    377 		cirq_type = oirq_type = iirq_type = IST_EDGE;
    378 	}
    379 
    380 	intr_establish(cirq, cirq_type, IPL_BIO, awacs_status_intr, sc);
    381 	intr_establish(oirq, oirq_type, IPL_AUDIO, awacs_intr, sc);
    382 	intr_establish(iirq, iirq_type, IPL_AUDIO, awacs_intr, sc);
    383 
    384 	mutex_init(&sc->sc_lock, MUTEX_DEFAULT, IPL_NONE);
    385 	mutex_init(&sc->sc_intr_lock, MUTEX_DEFAULT, IPL_AUDIO);
    386 
    387 	cv_init(&sc->sc_event, "awacs_wait");
    388 
    389 	/* check if the chip is a screamer */
    390 	sc->sc_screamer = (of_compatible(ca->ca_node, screamer) != -1);
    391 	if (!sc->sc_screamer) {
    392 		/* look for 'sound' child node */
    393 		int sound_node;
    394 
    395 		sound_node = OF_child(ca->ca_node);
    396 		while ((sound_node != 0) && (!sc->sc_screamer)) {
    397 
    398 			sc->sc_screamer =
    399 			    (of_compatible(sound_node, screamer) != -1);
    400 			sound_node = OF_peer(sound_node);
    401 		}
    402 	}
    403 
    404 	if (sc->sc_screamer) {
    405 		printf(" Screamer");
    406 	}
    407 
    408 	printf(": irq %d,%d,%d\n", cirq, oirq, iirq);
    409 
    410 	sc->vol_l = 0;
    411 	sc->vol_r = 0;
    412 
    413 	memcpy(&sc->sc_formats, awacs_formats, sizeof(awacs_formats));
    414 
    415 	/* XXX Uni-North based models don't have byteswap capability. */
    416 	if (OF_finddevice("/uni-n") == -1) {
    417 
    418 		sc->sc_flags |= AWACS_CAP_BSWAP;
    419 	} else {
    420 
    421 		AUFMT_INVALIDATE(&sc->sc_formats[AWACS_FORMATS_LE]);
    422 	}
    423 
    424 	sc->sc_soundctl = AWACS_INPUT_SUBFRAME0 | AWACS_OUTPUT_SUBFRAME0 |
    425 		AWACS_RATE_44100 | AWACS_INTR_PORTCHG;
    426 	awacs_write_reg(sc, AWACS_SOUND_CTRL, sc->sc_soundctl);
    427 
    428 	sc->sc_codecctl0 = AWACS_CODEC_ADDR0 | AWACS_CODEC_EMSEL0;
    429 	sc->sc_codecctl1 = AWACS_CODEC_ADDR1 | AWACS_CODEC_EMSEL0;
    430 	sc->sc_codecctl2 = AWACS_CODEC_ADDR2 | AWACS_CODEC_EMSEL0;
    431 	sc->sc_codecctl4 = AWACS_CODEC_ADDR4 | AWACS_CODEC_EMSEL0;
    432 	sc->sc_codecctl5 = AWACS_CODEC_ADDR5 | AWACS_CODEC_EMSEL0;
    433 	sc->sc_codecctl6 = AWACS_CODEC_ADDR6 | AWACS_CODEC_EMSEL0;
    434 	sc->sc_codecctl7 = AWACS_CODEC_ADDR7 | AWACS_CODEC_EMSEL0;
    435 
    436 	sc->sc_codecctl0 |= AWACS_INPUT_CD | AWACS_DEFAULT_CD_GAIN;
    437 	awacs_write_codec(sc, sc->sc_codecctl0);
    438 
    439 	/* Set loopthrough for external mixer on beige G3 */
    440 	sc->sc_codecctl1 |= AWACS_LOOP_THROUGH;
    441 
    442         printf("%s: ", device_xname(sc->sc_dev));
    443 
    444 	/*
    445 	 * all(?) awacs have GPIOs to detect if there's something plugged into
    446 	 * the headphone jack. The other GPIOs are either used for other jacks
    447 	 * ( the PB3400c's microphone jack for instance ) or unused.
    448 	 * The problem is that there are at least three different ways how
    449 	 * those GPIOs are wired to the actual jacks.
    450 	 * For now we bother only with headphone detection
    451 	 */
    452 	perch = OF_finddevice("/perch");
    453 	root_node = OF_finddevice("/");
    454 	if (of_compatible(root_node, detect_reversed) != -1) {
    455 
    456 		/* 0x02 is for the microphone jack, high active */
    457 		/*
    458 		 * for some reason the gpio for the headphones jack is low
    459 		 * active on the PB3400 and similar machines
    460 		 */
    461 		sc->sc_headphones_mask = 0x8;
    462 		sc->sc_headphones_in = 0x0;
    463 	} else if ((perch != -1) ||
    464 	    (of_compatible(root_node, use_gpio4) != -1)) {
    465 		/*
    466 		 * this is for the beige G3's 'personality card' which uses
    467 		 * yet another wiring of the headphone detect GPIOs
    468 		 * some G4s use it as well
    469 		 */
    470 		sc->sc_headphones_mask = 0x04;
    471 		sc->sc_headphones_in = 0x04;
    472 	} else {
    473 		/* while on most machines it's high active as well */
    474 		sc->sc_headphones_mask = 0x8;
    475 		sc->sc_headphones_in = 0x8;
    476 	}
    477 
    478 	if (of_compatible(root_node, no_parallel_output) != -1)
    479 		sc->sc_need_parallel_output = 0;
    480 	else {
    481 		sc->sc_need_parallel_output = 1;
    482 		sc->sc_codecctl1 |= AWACS_PARALLEL_OUTPUT;
    483 	}
    484 
    485 	if (awacs_check_headphones(sc)) {
    486 
    487                 /* default output to headphones */
    488                 printf("headphones\n");
    489                 sc->sc_output_mask = OUTPUT_HEADPHONES;
    490         } else {
    491 
    492                 /* default output to speakers */
    493                 printf("speaker\n");
    494                 sc->sc_output_mask = OUTPUT_SPEAKER;
    495         }
    496 	sc->sc_output_wanted = sc->sc_output_mask;
    497 	awacs_select_output(sc, sc->sc_output_mask);
    498 
    499 	delay(100);
    500 	if (sc->sc_screamer) {
    501 		awacs_write_codec(sc, sc->sc_codecctl6);
    502 		awacs_write_codec(sc, sc->sc_codecctl5);
    503 		delay(2);
    504 		awacs_write_codec(sc, sc->sc_codecctl1);
    505 		awacs_write_codec(sc, sc->sc_codecctl7);
    506 	}
    507 
    508 	/* default input from CD */
    509 	sc->sc_record_source = 1 << 0;
    510 	sc->sc_codecctl0 &= ~AWACS_INPUT_MASK;
    511 	sc->sc_codecctl0 |= AWACS_INPUT_CD;
    512 	awacs_write_codec(sc, sc->sc_codecctl0);
    513 
    514 	/* Enable interrupts and looping mode. */
    515 	/* XXX ... */
    516 
    517 	sc->sc_codecctl1 |= AWACS_LOOP_THROUGH;
    518 	if (sc->sc_need_parallel_output)
    519 		sc->sc_codecctl1 |= AWACS_PARALLEL_OUTPUT;
    520 	awacs_write_codec(sc, sc->sc_codecctl1);
    521 
    522 #if NSGSMIX > 0
    523 	sc->sc_sgsmix = NULL;
    524 #endif
    525 	sc->sc_have_perch = 0;
    526 	if (perch != -1) {
    527 
    528 		len = OF_getprop(perch, "compatible", compat, 255);
    529 		if (len > 0) {
    530 			printf("%s: found '%s' personality card\n",
    531 			    device_xname(sc->sc_dev), compat);
    532 			sc->sc_have_perch = 1;
    533 			config_finalize_register(sc->sc_dev,
    534 			    awacs_setup_sgsmix);
    535 		}
    536 	}
    537 
    538 	/* Set initial volume[s] */
    539 	awacs_set_volume(sc, 144, 144);
    540 	awacs_set_loopthrough_volume(sc, 0, 0);
    541 
    542 	audio_attach_mi(&awacs_hw_if, sc, sc->sc_dev);
    543 
    544 	if (kthread_create(PRI_NONE, 0, NULL, awacs_thread, sc,
    545 	    &sc->sc_thread, "%s", "awacs") != 0) {
    546 		printf("awacs: unable to create event kthread");
    547 	}
    548 	pmf_device_register(sc->sc_dev, NULL, NULL);
    549 }
    550 
    551 static int
    552 awacs_setup_sgsmix(device_t cookie)
    553 {
    554 	struct awacs_softc *sc = device_private(cookie);
    555 #if NSGSMIX > 0
    556 	device_t dv;
    557 	deviter_t di;
    558 #endif
    559 
    560 	if (!sc->sc_have_perch)
    561 		return 0;
    562 #if NSGSMIX > 0
    563 	/* look for sgsmix */
    564 	for (dv = deviter_first(&di, DEVITER_F_ROOT_FIRST);
    565 	     dv != NULL;
    566 	     dv = deviter_next(&di)) {
    567 		if (device_is_a(dv, "sgsmix")) {
    568 			sc->sc_sgsmix = dv;
    569 			break;
    570 		}
    571 	}
    572 	deviter_release(&di);
    573 	if (sc->sc_sgsmix == NULL)
    574 		return 0;
    575 
    576 	printf("%s: using %s\n", device_xname(sc->sc_dev),
    577 	    device_xname(sc->sc_sgsmix));
    578 
    579 	sc->sc_codecctl1 &= ~AWACS_MUTE_HEADPHONE;
    580 	awacs_write_codec(sc, sc->sc_codecctl1);
    581 
    582 	awacs_select_output(sc, sc->sc_output_mask);
    583 	awacs_set_volume(sc, sc->vol_l, sc->vol_r);
    584 	awacs_set_bass(sc, 128);
    585 	awacs_set_treble(sc, 128);
    586 	cv_signal(&sc->sc_event);
    587 #endif
    588 	return 0;
    589 }
    590 
    591 
    592 static inline u_int
    593 awacs_read_reg(struct awacs_softc *sc, int reg)
    594 {
    595 
    596 	return bus_space_read_4(sc->sc_tag, sc->sc_regh, reg);
    597 }
    598 
    599 static inline void
    600 awacs_write_reg(struct awacs_softc *sc, int reg, int val)
    601 {
    602 
    603 	bus_space_write_4(sc->sc_tag, sc->sc_regh, reg, val);
    604 }
    605 
    606 static void
    607 awacs_write_codec(struct awacs_softc *sc, int value)
    608 {
    609 
    610 	do {
    611 		delay(100);
    612 	} while (awacs_read_reg(sc, AWACS_CODEC_CTRL) & AWACS_CODEC_BUSY);
    613 
    614 	awacs_write_reg(sc, AWACS_CODEC_CTRL, value);
    615 
    616 	do {
    617 		delay(100);
    618 	} while (awacs_read_reg(sc, AWACS_CODEC_CTRL) & AWACS_CODEC_BUSY);
    619 }
    620 
    621 static int
    622 awacs_intr(void *v)
    623 {
    624 	struct awacs_softc *sc;
    625 	struct dbdma_command *cmd;
    626 	int count;
    627 	int status;
    628 
    629 	sc = v;
    630 	mutex_spin_enter(&sc->sc_intr_lock);
    631 	cmd = sc->sc_odmacmd;
    632 	count = sc->sc_opages;
    633 	/* Fill used buffer(s). */
    634 	while (count-- > 0) {
    635 		/* if DBDMA_INT_ALWAYS */
    636 		if (in16rb(&cmd->d_command) & 0x30) {	/* XXX */
    637 			status = in16rb(&cmd->d_status);
    638 			cmd->d_status = 0;
    639 			if (status)	/* status == 0x8400 */
    640 				if (sc->sc_ointr)
    641 					(*sc->sc_ointr)(sc->sc_oarg);
    642 		}
    643 		cmd++;
    644 	}
    645 	mutex_spin_exit(&sc->sc_intr_lock);
    646 
    647 	return 1;
    648 }
    649 
    650 /*
    651  * Close function is called at splaudio().
    652  */
    653 static void
    654 awacs_close(void *h)
    655 {
    656 	struct awacs_softc *sc;
    657 
    658 	sc = h;
    659 	awacs_halt_output(sc);
    660 	awacs_halt_input(sc);
    661 
    662 	sc->sc_ointr = 0;
    663 	sc->sc_iintr = 0;
    664 }
    665 
    666 static int
    667 awacs_query_encoding(void *h, struct audio_encoding *ae)
    668 {
    669 	struct awacs_softc *sc;
    670 
    671 	sc = h;
    672 	ae->flags = AUDIO_ENCODINGFLAG_EMULATED;
    673 
    674 	switch (ae->index) {
    675 	case 0:
    676 		strcpy(ae->name, AudioEslinear);
    677 		ae->encoding = AUDIO_ENCODING_SLINEAR;
    678 		ae->precision = 16;
    679 		ae->flags = 0;
    680 		return 0;
    681 	case 1:
    682 		strcpy(ae->name, AudioEslinear_be);
    683 		ae->encoding = AUDIO_ENCODING_SLINEAR_BE;
    684 		ae->precision = 16;
    685 		ae->flags = 0;
    686 		return 0;
    687 	case 2:
    688 		strcpy(ae->name, AudioEslinear_le);
    689 		ae->encoding = AUDIO_ENCODING_SLINEAR_LE;
    690 		ae->precision = 16;
    691 		if (sc->sc_flags & AWACS_CAP_BSWAP)
    692 			ae->flags = 0;
    693 		return 0;
    694 	case 3:
    695 		strcpy(ae->name, AudioEulinear_be);
    696 		ae->encoding = AUDIO_ENCODING_ULINEAR_BE;
    697 		ae->precision = 16;
    698 		return 0;
    699 	case 4:
    700 		strcpy(ae->name, AudioEulinear_le);
    701 		ae->encoding = AUDIO_ENCODING_ULINEAR_LE;
    702 		ae->precision = 16;
    703 		return 0;
    704 	case 5:
    705 		strcpy(ae->name, AudioEmulaw);
    706 		ae->encoding = AUDIO_ENCODING_ULAW;
    707 		ae->precision = 8;
    708 		return 0;
    709 	case 6:
    710 		strcpy(ae->name, AudioEalaw);
    711 		ae->encoding = AUDIO_ENCODING_ALAW;
    712 		ae->precision = 8;
    713 		return 0;
    714 	default:
    715 		return EINVAL;
    716 	}
    717 }
    718 
    719 static int
    720 awacs_set_params(void *h, int setmode, int usemode,
    721 		 audio_params_t *play, audio_params_t *rec,
    722 		 stream_filter_list_t *pfil, stream_filter_list_t *rfil)
    723 {
    724 	struct awacs_softc *sc;
    725 	audio_params_t *p;
    726 	stream_filter_list_t *fil;
    727 	int mode, i;
    728 
    729 	sc = h;
    730 	p = NULL;
    731 	/*
    732 	 * This device only has one clock, so make the sample rates match.
    733 	 */
    734 	if (play->sample_rate != rec->sample_rate &&
    735 	    usemode == (AUMODE_PLAY | AUMODE_RECORD)) {
    736 		if (setmode == AUMODE_PLAY) {
    737 			rec->sample_rate = play->sample_rate;
    738 			setmode |= AUMODE_RECORD;
    739 		} else if (setmode == AUMODE_RECORD) {
    740 			play->sample_rate = rec->sample_rate;
    741 			setmode |= AUMODE_PLAY;
    742 		} else
    743 			return EINVAL;
    744 	}
    745 
    746 	for (mode = AUMODE_RECORD; mode != -1;
    747 	     mode = mode == AUMODE_RECORD ? AUMODE_PLAY : -1) {
    748 		if ((setmode & mode) == 0)
    749 			continue;
    750 
    751 		p = mode == AUMODE_PLAY ? play : rec;
    752 		fil = mode == AUMODE_PLAY ? pfil : rfil;
    753 		switch (p->sample_rate) {
    754 		case 48000:	/* aurateconv */
    755 		case 44100:
    756 		case 29400:
    757 		case 22050:
    758 		case 17640:
    759 		case 14700:
    760 		case 11025:
    761 		case 8820:
    762 		case 8000:	/* aurateconv */
    763 		case 7350:
    764 			break;
    765 		default:
    766 			return EINVAL;
    767 		}
    768 		awacs_write_reg(sc, AWACS_BYTE_SWAP, 0);
    769 		i = auconv_set_converter(sc->sc_formats, AWACS_NFORMATS,
    770 					 mode, p, true, fil);
    771 		if (i < 0)
    772 			return EINVAL;
    773 		if (i == AWACS_FORMATS_LE)
    774 			awacs_write_reg(sc, AWACS_BYTE_SWAP, 1);
    775 		if (fil->req_size > 0)
    776 			p = &fil->filters[0].param;
    777 		if (awacs_set_rate(sc, p))
    778 			return EINVAL;
    779 	}
    780 	return 0;
    781 }
    782 
    783 static int
    784 awacs_round_blocksize(void *h, int size, int mode, const audio_params_t *param)
    785 {
    786 
    787 	if (size < PAGE_SIZE)
    788 		size = PAGE_SIZE;
    789 	return size & ~PGOFSET;
    790 }
    791 
    792 static int
    793 awacs_halt_output(void *h)
    794 {
    795 	struct awacs_softc *sc;
    796 
    797 	sc = h;
    798 	dbdma_stop(sc->sc_odma);
    799 	dbdma_reset(sc->sc_odma);
    800 	return 0;
    801 }
    802 
    803 static int
    804 awacs_halt_input(void *h)
    805 {
    806 	struct awacs_softc *sc;
    807 
    808 	sc = h;
    809 	dbdma_stop(sc->sc_idma);
    810 	dbdma_reset(sc->sc_idma);
    811 	return 0;
    812 }
    813 
    814 static int
    815 awacs_getdev(void *h, struct audio_device *retp)
    816 {
    817 
    818 	*retp = awacs_device;
    819 	return 0;
    820 }
    821 
    822 enum {
    823 	AWACS_MONITOR_CLASS,
    824 	AWACS_OUTPUT_CLASS,
    825 	AWACS_RECORD_CLASS,
    826 	AWACS_OUTPUT_SELECT,
    827 	AWACS_VOL_MASTER,
    828 	AWACS_INPUT_SELECT,
    829 	AWACS_VOL_INPUT,
    830 	AWACS_VOL_MONITOR,
    831 	AWACS_BASS,
    832 	AWACS_TREBLE,
    833 	AWACS_ENUM_LAST
    834 };
    835 
    836 static int
    837 awacs_set_port(void *h, mixer_ctrl_t *mc)
    838 {
    839 	struct awacs_softc *sc;
    840 	int l, r;
    841 
    842 	DPRINTF("awacs_set_port dev = %d, type = %d\n", mc->dev, mc->type);
    843 	sc = h;
    844 	l = mc->un.value.level[AUDIO_MIXER_LEVEL_LEFT];
    845 	r = mc->un.value.level[AUDIO_MIXER_LEVEL_RIGHT];
    846 
    847 	switch (mc->dev) {
    848 	case AWACS_OUTPUT_SELECT:
    849 		/* No change necessary? */
    850 		if (mc->un.mask == sc->sc_output_mask)
    851 			return 0;
    852 		awacs_select_output(sc, mc->un.mask);
    853 		return 0;
    854 
    855 	case AWACS_VOL_MASTER:
    856 		awacs_set_volume(sc, l, r);
    857 		return 0;
    858 
    859 	case AWACS_INPUT_SELECT:
    860 		/* no change necessary? */
    861 		if (mc->un.mask == sc->sc_record_source)
    862 			return 0;
    863 		switch (mc->un.mask) {
    864 		case 1 << 0: /* CD */
    865 			sc->sc_codecctl0 &= ~AWACS_INPUT_MASK;
    866 			sc->sc_codecctl0 |= AWACS_INPUT_CD;
    867 			awacs_write_codec(sc, sc->sc_codecctl0);
    868 			break;
    869 		case 1 << 1: /* microphone */
    870 			sc->sc_codecctl0 &= ~AWACS_INPUT_MASK;
    871 			sc->sc_codecctl0 |= AWACS_INPUT_MICROPHONE;
    872 			awacs_write_codec(sc, sc->sc_codecctl0);
    873 			break;
    874 		case 1 << 2: /* line in */
    875 			sc->sc_codecctl0 &= ~AWACS_INPUT_MASK;
    876 			sc->sc_codecctl0 |= AWACS_INPUT_LINE;
    877 			awacs_write_codec(sc, sc->sc_codecctl0);
    878 			break;
    879 		default: /* invalid argument */
    880 			return EINVAL;
    881 		}
    882 		sc->sc_record_source = mc->un.mask;
    883 		return 0;
    884 
    885 	case AWACS_VOL_INPUT:
    886 		sc->sc_codecctl0 &= ~0xff;
    887 		sc->sc_codecctl0 |= (l & 0xf0) | (r >> 4);
    888 		awacs_write_codec(sc, sc->sc_codecctl0);
    889 		return 0;
    890 
    891 	case AWACS_VOL_MONITOR:
    892 		awacs_set_loopthrough_volume(sc, l, r);
    893 		return 0;
    894 
    895 #if NSGSMIX > 0
    896 	case AWACS_BASS:
    897 		awacs_set_bass(sc, l);
    898 		return 0;
    899 
    900 	case AWACS_TREBLE:
    901 		awacs_set_treble(sc, l);
    902 		return 0;
    903 #endif
    904 	}
    905 
    906 	return ENXIO;
    907 }
    908 
    909 static int
    910 awacs_get_port(void *h, mixer_ctrl_t *mc)
    911 {
    912 	struct awacs_softc *sc;
    913 	int l, r, vol;
    914 
    915 	sc = h;
    916 	switch (mc->dev) {
    917 	case AWACS_OUTPUT_SELECT:
    918 		mc->un.mask = sc->sc_output_mask;
    919 		return 0;
    920 
    921 	case AWACS_VOL_MASTER:
    922 		mc->un.value.level[AUDIO_MIXER_LEVEL_LEFT] = sc->vol_l;
    923 		mc->un.value.level[AUDIO_MIXER_LEVEL_RIGHT] = sc->vol_r;
    924 		return 0;
    925 
    926 	case AWACS_INPUT_SELECT:
    927 		mc->un.mask = sc->sc_record_source;
    928 		return 0;
    929 
    930 	case AWACS_VOL_INPUT:
    931 		vol = sc->sc_codecctl0 & 0xff;
    932 		l = (vol & 0xf0);
    933 		r = (vol & 0x0f) << 4;
    934 		mc->un.value.level[AUDIO_MIXER_LEVEL_LEFT] = l;
    935 		mc->un.value.level[AUDIO_MIXER_LEVEL_RIGHT] = r;
    936 		return 0;
    937 
    938 	case AWACS_VOL_MONITOR:
    939 		vol = sc->sc_codecctl5 & 0x3cf;
    940 		l = (vol & 0x3c0) >> 6;
    941 		r = vol & 0xf;
    942 		mc->un.value.level[AUDIO_MIXER_LEVEL_LEFT] = (15 - l) << 4;
    943 		mc->un.value.level[AUDIO_MIXER_LEVEL_RIGHT] = (15 - r) << 4;
    944 		return 0;
    945 
    946 #if NSGSMIX > 0
    947 	case AWACS_BASS:
    948 		mc->un.value.level[AUDIO_MIXER_LEVEL_MONO] = sc->sc_bass;
    949 		return 0;
    950 
    951 	case AWACS_TREBLE:
    952 		mc->un.value.level[AUDIO_MIXER_LEVEL_MONO] = sc->sc_treble;
    953 		return 0;
    954 #endif
    955 
    956 	default:
    957 		return ENXIO;
    958 	}
    959 
    960 	return 0;
    961 }
    962 
    963 static int
    964 awacs_query_devinfo(void *h, mixer_devinfo_t *dip)
    965 {
    966 #if NSGSMIX > 0
    967 	struct awacs_softc *sc = h;
    968 #endif
    969 
    970 	switch (dip->index) {
    971 
    972 	case AWACS_OUTPUT_SELECT:
    973 		dip->mixer_class = AWACS_OUTPUT_CLASS;
    974 		strcpy(dip->label.name, AudioNoutput);
    975 		dip->type = AUDIO_MIXER_SET;
    976 		dip->prev = dip->next = AUDIO_MIXER_LAST;
    977 		dip->un.s.num_mem = 2;
    978 		strcpy(dip->un.s.member[0].label.name, AudioNspeaker);
    979 		dip->un.s.member[0].mask = 1 << 0;
    980 		strcpy(dip->un.s.member[1].label.name, AudioNheadphone);
    981 		dip->un.s.member[1].mask = 1 << 1;
    982 		return 0;
    983 
    984 	case AWACS_VOL_MASTER:
    985 		dip->mixer_class = AWACS_OUTPUT_CLASS;
    986 		strcpy(dip->label.name, AudioNmaster);
    987 		dip->type = AUDIO_MIXER_VALUE;
    988 		dip->prev = dip->next = AUDIO_MIXER_LAST;
    989 		dip->un.v.num_channels = 2;
    990 		dip->un.v.delta = 16;
    991 		strcpy(dip->un.v.units.name, AudioNvolume);
    992 		return 0;
    993 
    994 	case AWACS_VOL_MONITOR:
    995 		dip->mixer_class = AWACS_MONITOR_CLASS;
    996 		strcpy(dip->label.name, AudioNmonitor);
    997 		dip->type = AUDIO_MIXER_VALUE;
    998 		dip->prev = dip->next = AUDIO_MIXER_LAST;
    999 		dip->un.v.num_channels = 2;
   1000 		strcpy(dip->un.v.units.name, AudioNvolume);
   1001 		return 0;
   1002 
   1003 #if NSGSMIX > 0
   1004 	case AWACS_BASS:
   1005 		if (sc->sc_sgsmix == NULL)
   1006 			return ENXIO;
   1007 		dip->mixer_class = AWACS_OUTPUT_CLASS;
   1008 		strcpy(dip->label.name, AudioNbass);
   1009 		dip->type = AUDIO_MIXER_VALUE;
   1010 		dip->prev = dip->next = AUDIO_MIXER_LAST;
   1011 		dip->un.v.num_channels = 1;
   1012 		strcpy(dip->un.v.units.name, AudioNbass);
   1013 		return 0;
   1014 
   1015 	case AWACS_TREBLE:
   1016 		if (sc->sc_sgsmix == NULL)
   1017 			return ENXIO;
   1018 		dip->mixer_class = AWACS_OUTPUT_CLASS;
   1019 		strcpy(dip->label.name, AudioNtreble);
   1020 		dip->type = AUDIO_MIXER_VALUE;
   1021 		dip->prev = dip->next = AUDIO_MIXER_LAST;
   1022 		dip->un.v.num_channels = 1;
   1023 		strcpy(dip->un.v.units.name, AudioNtreble);
   1024 		return 0;
   1025 #endif
   1026 
   1027 	case AWACS_INPUT_SELECT:
   1028 		dip->mixer_class = AWACS_RECORD_CLASS;
   1029 		strcpy(dip->label.name, AudioNsource);
   1030 		dip->type = AUDIO_MIXER_SET;
   1031 		dip->prev = dip->next = AUDIO_MIXER_LAST;
   1032 		dip->un.s.num_mem = 3;
   1033 		strcpy(dip->un.s.member[0].label.name, AudioNcd);
   1034 		dip->un.s.member[0].mask = 1 << 0;
   1035 		strcpy(dip->un.s.member[1].label.name, AudioNmicrophone);
   1036 		dip->un.s.member[1].mask = 1 << 1;
   1037 		strcpy(dip->un.s.member[2].label.name, AudioNline);
   1038 		dip->un.s.member[2].mask = 1 << 2;
   1039 		return 0;
   1040 
   1041 	case AWACS_VOL_INPUT:
   1042 		dip->mixer_class = AWACS_RECORD_CLASS;
   1043 		strcpy(dip->label.name, AudioNrecord);
   1044 		dip->type = AUDIO_MIXER_VALUE;
   1045 		dip->prev = dip->next = AUDIO_MIXER_LAST;
   1046 		dip->un.v.num_channels = 2;
   1047 		strcpy(dip->un.v.units.name, AudioNvolume);
   1048 		return 0;
   1049 
   1050 	case AWACS_MONITOR_CLASS:
   1051 		dip->mixer_class = AWACS_MONITOR_CLASS;
   1052 		strcpy(dip->label.name, AudioCmonitor);
   1053 		dip->type = AUDIO_MIXER_CLASS;
   1054 		dip->next = dip->prev = AUDIO_MIXER_LAST;
   1055 		return 0;
   1056 
   1057 	case AWACS_OUTPUT_CLASS:
   1058 		dip->mixer_class = AWACS_OUTPUT_CLASS;
   1059 		strcpy(dip->label.name, AudioCoutputs);
   1060 		dip->type = AUDIO_MIXER_CLASS;
   1061 		dip->next = dip->prev = AUDIO_MIXER_LAST;
   1062 		return 0;
   1063 
   1064 	case AWACS_RECORD_CLASS:
   1065 		dip->mixer_class = AWACS_RECORD_CLASS;
   1066 		strcpy(dip->label.name, AudioCrecord);
   1067 		dip->type = AUDIO_MIXER_CLASS;
   1068 		dip->next = dip->prev = AUDIO_MIXER_LAST;
   1069 		return 0;
   1070 	}
   1071 
   1072 	return ENXIO;
   1073 }
   1074 
   1075 static size_t
   1076 awacs_round_buffersize(void *h, int dir, size_t size)
   1077 {
   1078 
   1079 	if (size > 65536)
   1080 		size = 65536;
   1081 	return size;
   1082 }
   1083 
   1084 static paddr_t
   1085 awacs_mappage(void *h, void *mem, off_t off, int prot)
   1086 {
   1087 
   1088 	if (off < 0)
   1089 		return -1;
   1090 	return -1;	/* XXX */
   1091 }
   1092 
   1093 static int
   1094 awacs_get_props(void *h)
   1095 {
   1096 	return AUDIO_PROP_FULLDUPLEX /* | AUDIO_PROP_MMAP */;
   1097 }
   1098 
   1099 static int
   1100 awacs_trigger_output(void *h, void *start, void *end, int bsize,
   1101 		     void (*intr)(void *), void *arg,
   1102 		     const audio_params_t *param)
   1103 {
   1104 	struct awacs_softc *sc;
   1105 	struct dbdma_command *cmd;
   1106 	vaddr_t va;
   1107 	int i, len, intmode;
   1108 
   1109 	DPRINTF("trigger_output %p %p 0x%x\n", start, end, bsize);
   1110 	sc = h;
   1111 	cmd = sc->sc_odmacmd;
   1112 	sc->sc_ointr = intr;
   1113 	sc->sc_oarg = arg;
   1114 	sc->sc_opages = ((char *)end - (char *)start) / PAGE_SIZE;
   1115 
   1116 #ifdef DIAGNOSTIC
   1117 	if (sc->sc_opages > 16)
   1118 		panic("awacs_trigger_output");
   1119 #endif
   1120 
   1121 	va = (vaddr_t)start;
   1122 	len = 0;
   1123 	for (i = sc->sc_opages; i > 0; i--) {
   1124 		len += PAGE_SIZE;
   1125 		if (len < bsize)
   1126 			intmode = DBDMA_INT_NEVER;
   1127 		else {
   1128 			len = 0;
   1129 			intmode = DBDMA_INT_ALWAYS;
   1130 		}
   1131 
   1132 		DBDMA_BUILD(cmd, DBDMA_CMD_OUT_MORE, 0, PAGE_SIZE, vtophys(va),
   1133 			intmode, DBDMA_WAIT_NEVER, DBDMA_BRANCH_NEVER);
   1134 		va += PAGE_SIZE;
   1135 		cmd++;
   1136 	}
   1137 
   1138 	DBDMA_BUILD(cmd, DBDMA_CMD_NOP, 0, 0, 0,
   1139 		DBDMA_INT_NEVER, DBDMA_WAIT_NEVER, DBDMA_BRANCH_ALWAYS);
   1140 	out32rb(&cmd->d_cmddep, vtophys((vaddr_t)sc->sc_odmacmd));
   1141 
   1142 	dbdma_start(sc->sc_odma, sc->sc_odmacmd);
   1143 
   1144 	return 0;
   1145 }
   1146 
   1147 static int
   1148 awacs_trigger_input(void *h, void *start, void *end, int bsize,
   1149 		    void (*intr)(void *), void *arg,
   1150 		    const audio_params_t *param)
   1151 {
   1152 
   1153 	DPRINTF("awacs_trigger_input called\n");
   1154 	return 1;
   1155 }
   1156 
   1157 static void
   1158 awacs_get_locks(void *opaque, kmutex_t **intr, kmutex_t **thread)
   1159 {
   1160 	struct awacs_softc *sc = opaque;
   1161 
   1162 	*intr = &sc->sc_intr_lock;
   1163 	*thread = &sc->sc_lock;
   1164 }
   1165 
   1166 static void
   1167 awacs_select_output(struct awacs_softc *sc, int mask)
   1168 {
   1169 
   1170 #if NSGSMIX > 0
   1171 	if (sc->sc_sgsmix) {
   1172 		if (mask & OUTPUT_HEADPHONES) {
   1173 			/* mute speakers */
   1174 			sgsmix_set_speaker_vol(sc->sc_sgsmix, 0, 0);
   1175 			sgsmix_set_headphone_vol(sc->sc_sgsmix,
   1176 			    sc->vol_l, sc->vol_r);
   1177 		}
   1178 		if (mask & OUTPUT_SPEAKER) {
   1179 			/* mute headphones */
   1180 			sgsmix_set_speaker_vol(sc->sc_sgsmix,
   1181 			    sc->vol_l, sc->vol_r);
   1182 			sgsmix_set_headphone_vol(sc->sc_sgsmix, 0, 0);
   1183 		}
   1184 	} else {
   1185 #endif
   1186 	sc->sc_codecctl1 |= AWACS_MUTE_SPEAKER | AWACS_MUTE_HEADPHONE;
   1187 	if ((sc->vol_l > 0) || (sc->vol_r > 0)) {
   1188 		if (mask & OUTPUT_SPEAKER)
   1189 			sc->sc_codecctl1 &= ~AWACS_MUTE_SPEAKER;
   1190 		if (mask & OUTPUT_HEADPHONES)
   1191 			sc->sc_codecctl1 &= ~AWACS_MUTE_HEADPHONE;
   1192 	}
   1193 	awacs_write_codec(sc, sc->sc_codecctl1);
   1194 #if NSGSMIX > 0
   1195 	}
   1196 #endif
   1197 	sc->sc_output_mask = mask;
   1198 }
   1199 
   1200 static void
   1201 awacs_set_speaker_volume(struct awacs_softc *sc, int left, int right)
   1202 {
   1203 
   1204 #if NSGSMIX > 0
   1205 	if (sc->sc_sgsmix) {
   1206 		if (sc->sc_output_mask & OUTPUT_SPEAKER)
   1207 			sgsmix_set_speaker_vol(sc->sc_sgsmix, left, right);
   1208 	} else
   1209 #endif
   1210 	{
   1211 		int lval;
   1212 		int rval;
   1213 		uint32_t codecctl = sc->sc_codecctl1;
   1214 
   1215 		lval = 15 - ((left  & 0xf0) >> 4);
   1216 		rval = 15 - ((right & 0xf0) >> 4);
   1217 		DPRINTF("speaker_volume %d %d\n", lval, rval);
   1218 
   1219 		sc->sc_codecctl4 &= ~0x3cf;
   1220 		sc->sc_codecctl4 |= (lval << 6) | rval;
   1221 		awacs_write_codec(sc, sc->sc_codecctl4);
   1222 		if ((left == 0) && (right == 0)) {
   1223 			/*
   1224 			 * max. attenuation doesn't mean silence so we need to
   1225 			 * mute the output channel here
   1226 			 */
   1227 			codecctl |= AWACS_MUTE_SPEAKER;
   1228 		} else if (sc->sc_output_mask & OUTPUT_SPEAKER) {
   1229 			codecctl &= ~AWACS_MUTE_SPEAKER;
   1230 		}
   1231 
   1232 		if (codecctl != sc->sc_codecctl1) {
   1233 
   1234 			sc->sc_codecctl1 = codecctl;
   1235 			awacs_write_codec(sc, sc->sc_codecctl1);
   1236 		}
   1237 	}
   1238 }
   1239 
   1240 static void
   1241 awacs_set_ext_volume(struct awacs_softc *sc, int left, int right)
   1242 {
   1243 
   1244 #if NSGSMIX > 0
   1245 	if (sc->sc_sgsmix) {
   1246 		if (sc->sc_output_mask & OUTPUT_HEADPHONES)
   1247 			sgsmix_set_headphone_vol(sc->sc_sgsmix, left, right);
   1248 	} else
   1249 #endif
   1250 	{
   1251 		int lval;
   1252 		int rval;
   1253 		uint32_t codecctl = sc->sc_codecctl1;
   1254 
   1255 		lval = 15 - ((left  & 0xf0) >> 4);
   1256 		rval = 15 - ((right & 0xf0) >> 4);
   1257 		DPRINTF("ext_volume %d %d\n", lval, rval);
   1258 
   1259 		sc->sc_codecctl2 &= ~0x3cf;
   1260 		sc->sc_codecctl2 |= (lval << 6) | rval;
   1261 		awacs_write_codec(sc, sc->sc_codecctl2);
   1262 
   1263 		if ((left == 0) && (right == 0)) {
   1264 			/*
   1265 			 * max. attenuation doesn't mean silence so we need to
   1266 			 * mute the output channel here
   1267 			 */
   1268 			codecctl |= AWACS_MUTE_HEADPHONE;
   1269 		} else if (sc->sc_output_mask & OUTPUT_HEADPHONES) {
   1270 
   1271 			codecctl &= ~AWACS_MUTE_HEADPHONE;
   1272 		}
   1273 
   1274 		if (codecctl != sc->sc_codecctl1) {
   1275 
   1276 			sc->sc_codecctl1 = codecctl;
   1277 			awacs_write_codec(sc, sc->sc_codecctl1);
   1278 		}
   1279 	}
   1280 }
   1281 
   1282 void
   1283 awacs_set_volume(struct awacs_softc *sc, int left, int right)
   1284 {
   1285 
   1286 	awacs_set_ext_volume(sc, left, right);
   1287 	awacs_set_speaker_volume(sc, left, right);
   1288 
   1289 	sc->vol_l = left;
   1290 	sc->vol_r = right;
   1291 }
   1292 
   1293 #if NSGSMIX > 0
   1294 static void
   1295 awacs_set_bass(struct awacs_softc *sc, int bass)
   1296 {
   1297 
   1298 	if (sc->sc_bass == bass)
   1299 		return;
   1300 
   1301 	sc->sc_bass = bass;
   1302 	if (sc->sc_sgsmix)
   1303 		sgsmix_set_bass_treble(sc->sc_sgsmix, sc->sc_bass,
   1304 		    sc->sc_treble);
   1305 }
   1306 
   1307 static void
   1308 awacs_set_treble(struct awacs_softc *sc, int treble)
   1309 {
   1310 
   1311 	if (sc->sc_treble == treble)
   1312 		return;
   1313 
   1314 	sc->sc_treble = treble;
   1315 	if (sc->sc_sgsmix)
   1316 		sgsmix_set_bass_treble(sc->sc_sgsmix, sc->sc_bass,
   1317 		    sc->sc_treble);
   1318 }
   1319 #endif
   1320 
   1321 void
   1322 awacs_set_loopthrough_volume(struct awacs_softc *sc, int left, int right)
   1323 {
   1324 	int lval;
   1325 	int rval;
   1326 
   1327 	lval = 15 - ((left  & 0xff) >> 4);
   1328 	rval = 15 - ((right & 0xff) >> 4);
   1329 	DPRINTF("loopthrough_volume %d %d\n", lval, rval);
   1330 
   1331 	sc->sc_codecctl5 &= ~0x3cf;
   1332 	sc->sc_codecctl5 |= (lval << 6) | rval;
   1333 	awacs_write_codec(sc, sc->sc_codecctl5);
   1334 }
   1335 
   1336 int
   1337 awacs_set_rate(struct awacs_softc *sc, const audio_params_t *p)
   1338 {
   1339 	int c;
   1340 
   1341 	switch (p->sample_rate) {
   1342 	case 44100:
   1343 		c = AWACS_RATE_44100;
   1344 		break;
   1345 	case 29400:
   1346 		c = AWACS_RATE_29400;
   1347 		break;
   1348 	case 22050:
   1349 		c = AWACS_RATE_22050;
   1350 		break;
   1351 	case 17640:
   1352 		c = AWACS_RATE_17640;
   1353 		break;
   1354 	case 14700:
   1355 		c = AWACS_RATE_14700;
   1356 		break;
   1357 	case 11025:
   1358 		c = AWACS_RATE_11025;
   1359 		break;
   1360 	case 8820:
   1361 		c = AWACS_RATE_8820;
   1362 		break;
   1363 	case 7350:
   1364 		c = AWACS_RATE_7350;
   1365 		break;
   1366 	default:
   1367 		return -1;
   1368 	}
   1369 
   1370 	sc->sc_soundctl &= ~AWACS_RATE_MASK;
   1371 	sc->sc_soundctl |= c;
   1372 	awacs_write_reg(sc, AWACS_SOUND_CTRL, sc->sc_soundctl);
   1373 
   1374 	return 0;
   1375 }
   1376 
   1377 static int
   1378 awacs_check_headphones(struct awacs_softc *sc)
   1379 {
   1380 	uint32_t reg;
   1381 	reg = awacs_read_reg(sc, AWACS_CODEC_STATUS);
   1382 	DPRINTF("%s: codec status reg %08x\n", device_xname(sc->sc_dev), reg);
   1383 	return ((reg & sc->sc_headphones_mask) == sc->sc_headphones_in);
   1384 }
   1385 
   1386 static int
   1387 awacs_status_intr(void *cookie)
   1388 {
   1389 	struct awacs_softc *sc = cookie;
   1390 	int mask;
   1391 
   1392 	mutex_spin_enter(&sc->sc_intr_lock);
   1393 	mask = awacs_check_headphones(sc) ? OUTPUT_HEADPHONES : OUTPUT_SPEAKER;
   1394 	if (mask != sc->sc_output_mask) {
   1395 
   1396 		sc->sc_output_wanted = mask;
   1397 		cv_signal(&sc->sc_event);
   1398 	}
   1399 	/* clear the interrupt */
   1400 	awacs_write_reg(sc, AWACS_SOUND_CTRL, sc->sc_soundctl | AWACS_PORTCHG);
   1401 	mutex_spin_exit(&sc->sc_intr_lock);
   1402 	return 1;
   1403 }
   1404 
   1405 static void
   1406 awacs_thread(void *cookie)
   1407 {
   1408 	struct awacs_softc *sc = cookie;
   1409 
   1410 	mutex_enter(&sc->sc_intr_lock);
   1411 	while (1) {
   1412 		cv_timedwait(&sc->sc_event, &sc->sc_intr_lock, hz);
   1413 		if (sc->sc_output_wanted == sc->sc_output_mask)
   1414 			continue;
   1415 
   1416 		awacs_select_output(sc, sc->sc_output_wanted);
   1417 		DPRINTF("%s: switching to %s\n", device_xname(sc->sc_dev),
   1418 		    (sc->sc_output_wanted & OUTPUT_SPEAKER) ?
   1419 		    "speaker" : "headphones");
   1420 	}
   1421 }
   1422