Home | History | Annotate | Line # | Download | only in dev
awacs.c revision 1.46
      1 /*	$NetBSD: awacs.c,v 1.46 2019/03/16 12:09:57 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 2019/03/16 12:09:57 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 static const struct audio_format awacs_formats[AWACS_NFORMATS] = {
    193 	{NULL, AUMODE_PLAY | AUMODE_RECORD, AUDIO_ENCODING_SLINEAR_LE, 16, 16,
    194 	 2, AUFMT_STEREO, 8,
    195 	 {7350, 8820, 11025, 14700, 17640, 22050, 29400, 44100}},
    196 	{NULL, AUMODE_PLAY | AUMODE_RECORD, AUDIO_ENCODING_SLINEAR_BE, 16, 16,
    197 	 2, AUFMT_STEREO, 8,
    198 	 {7350, 8820, 11025, 14700, 17640, 22050, 29400, 44100}},
    199 };
    200 
    201 /* register offset */
    202 #define AWACS_SOUND_CTRL	0x00
    203 #define AWACS_CODEC_CTRL	0x10
    204 #define AWACS_CODEC_STATUS	0x20
    205 #define AWACS_CLIP_COUNT	0x30
    206 #define AWACS_BYTE_SWAP		0x40
    207 
    208 /* sound control */
    209 #define AWACS_INPUT_SUBFRAME0	0x00000001
    210 #define AWACS_INPUT_SUBFRAME1	0x00000002
    211 #define AWACS_INPUT_SUBFRAME2	0x00000004
    212 #define AWACS_INPUT_SUBFRAME3	0x00000008
    213 
    214 #define AWACS_OUTPUT_SUBFRAME0	0x00000010
    215 #define AWACS_OUTPUT_SUBFRAME1	0x00000020
    216 #define AWACS_OUTPUT_SUBFRAME2	0x00000040
    217 #define AWACS_OUTPUT_SUBFRAME3	0x00000080
    218 
    219 #define AWACS_RATE_44100	0x00000000
    220 #define AWACS_RATE_29400	0x00000100
    221 #define AWACS_RATE_22050	0x00000200
    222 #define AWACS_RATE_17640	0x00000300
    223 #define AWACS_RATE_14700	0x00000400
    224 #define AWACS_RATE_11025	0x00000500
    225 #define AWACS_RATE_8820		0x00000600
    226 #define AWACS_RATE_7350		0x00000700
    227 #define AWACS_RATE_MASK		0x00000700
    228 
    229 #define AWACS_ERROR		0x00000800
    230 #define AWACS_PORTCHG		0x00001000
    231 #define AWACS_INTR_ERROR	0x00002000	/* interrupt on error */
    232 #define AWACS_INTR_PORTCHG	0x00004000	/* interrupt on port change */
    233 
    234 #define AWACS_STATUS_SUBFRAME	0x00018000	/* mask */
    235 
    236 /* codec control */
    237 #define AWACS_CODEC_ADDR0	0x00000000
    238 #define AWACS_CODEC_ADDR1	0x00001000
    239 #define AWACS_CODEC_ADDR2	0x00002000
    240 #define AWACS_CODEC_ADDR4	0x00004000
    241 #define AWACS_CODEC_ADDR5	0x00005000
    242 #define AWACS_CODEC_ADDR6	0x00006000
    243 #define AWACS_CODEC_ADDR7	0x00007000
    244 #define AWACS_CODEC_EMSEL0	0x00000000
    245 #define AWACS_CODEC_EMSEL1	0x00400000
    246 #define AWACS_CODEC_EMSEL2	0x00800000
    247 #define AWACS_CODEC_EMSEL4	0x00c00000
    248 #define AWACS_CODEC_BUSY	0x01000000
    249 
    250 /* cc0 */
    251 #define AWACS_DEFAULT_CD_GAIN	0x000000bb
    252 #define AWACS_INPUT_CD		0x00000200
    253 #define AWACS_INPUT_LINE	0x00000400
    254 #define AWACS_INPUT_MICROPHONE	0x00000800
    255 #define AWACS_INPUT_MASK	0x00000e00
    256 
    257 /* cc1 */
    258 #define AWACS_LOOP_THROUGH	0x00000040
    259 #define AWACS_MUTE_SPEAKER	0x00000080
    260 #define AWACS_MUTE_HEADPHONE	0x00000200
    261 #define AWACS_PARALLEL_OUTPUT	0x00000c00
    262 
    263 /* output */
    264 #define OUTPUT_SPEAKER		1
    265 #define OUTPUT_HEADPHONES	2
    266 
    267 /* codec status */
    268 
    269 static const char *screamer[] = {"screamer", NULL};
    270 
    271 /*
    272  * list machines that have the headphone detect GPIO reversed here.
    273  * so far the only known case is the PowerBook 3400c and similar machines
    274  */
    275 static const char *detect_reversed[] = {"AAPL,3400/2400",
    276 					"AAPL,3500",
    277 					NULL};
    278 
    279 static const char *use_gpio4[] = {	"PowerMac3,1",
    280 					"PowerMac3,2",
    281 					"PowerMac3,3",
    282 					NULL};
    283 
    284 /*
    285  * list of machines that do not require AWACS_PARALLEL_OUTPUT
    286  */
    287 static const char *no_parallel_output[] = {	"PowerBook3,1",
    288 						NULL};
    289 
    290 static int
    291 awacs_match(device_t parent, struct cfdata *match, void *aux)
    292 {
    293 	struct confargs *ca;
    294 
    295 	ca = aux;
    296 
    297 	if (strcmp(ca->ca_name, "awacs") == 0 ||
    298 	    strcmp(ca->ca_name, "davbus") == 0)
    299 		return 100;
    300 
    301 	if (ca->ca_nreg < 24 || ca->ca_nintr < 12)
    302 		return 0;
    303 
    304 	if (strcmp(ca->ca_name, "i2s") == 0)
    305 		return 1;
    306 
    307 	return 0;
    308 }
    309 
    310 static void
    311 awacs_attach(device_t parent, device_t self, void *aux)
    312 {
    313 	struct awacs_softc *sc;
    314 	struct confargs *ca = aux;
    315 	int cirq, oirq, iirq, cirq_type, oirq_type, iirq_type;
    316 	int len = -1, perch;
    317 	int root_node;
    318 	char compat[256];
    319 
    320 	sc = device_private(self);
    321 	sc->sc_dev = self;
    322 	sc->sc_tag = ca->ca_tag;
    323 
    324 	if (bus_space_map(sc->sc_tag, ca->ca_baseaddr + ca->ca_reg[0],
    325 	    ca->ca_reg[1], 0, &sc->sc_regh) != 0)
    326 		printf("couldn't map codec registers\n");
    327 	if (bus_space_map(sc->sc_tag, ca->ca_baseaddr + ca->ca_reg[2],
    328 	    ca->ca_reg[3], BUS_SPACE_MAP_LINEAR, &sc->sc_odmah) != 0)
    329 		printf("couldn't map DMA out registers\n");
    330 	if (bus_space_map(sc->sc_tag, ca->ca_baseaddr + ca->ca_reg[4],
    331 	    ca->ca_reg[5], BUS_SPACE_MAP_LINEAR, &sc->sc_idmah) != 0)
    332 		printf("couldn't map DMA in registers\n");
    333 
    334 	sc->sc_odma = bus_space_vaddr(sc->sc_tag, sc->sc_odmah);
    335 	sc->sc_idma = bus_space_vaddr(sc->sc_tag, sc->sc_idmah);
    336 	sc->sc_odmacmd = dbdma_alloc(20 * sizeof(struct dbdma_command), NULL);
    337 	sc->sc_idmacmd = dbdma_alloc(20 * sizeof(struct dbdma_command), NULL);
    338 
    339 	if (strcmp(ca->ca_name, "i2s") == 0) {
    340 		int node, intr[6];
    341 
    342 		node = OF_child(ca->ca_node);
    343 		if (node == 0) {
    344 			printf("no i2s-a child\n");
    345 			return;
    346 		}
    347 		if (OF_getprop(node, "interrupts", intr, sizeof(intr)) == -1) {
    348 			printf("no interrupt property\n");
    349 			return;
    350 		}
    351 
    352 		cirq = intr[0];
    353 		oirq = intr[2];
    354 		iirq = intr[4];
    355 		cirq_type = intr[1] ? IST_LEVEL : IST_EDGE;
    356 		oirq_type = intr[3] ? IST_LEVEL : IST_EDGE;
    357 		iirq_type = intr[5] ? IST_LEVEL : IST_EDGE;
    358 	} else if (ca->ca_nintr == 24) {
    359 		cirq = ca->ca_intr[0];
    360 		oirq = ca->ca_intr[2];
    361 		iirq = ca->ca_intr[4];
    362 		cirq_type = ca->ca_intr[1] ? IST_LEVEL : IST_EDGE;
    363 		oirq_type = ca->ca_intr[3] ? IST_LEVEL : IST_EDGE;
    364 		iirq_type = ca->ca_intr[5] ? IST_LEVEL : IST_EDGE;
    365 	} else {
    366 		cirq = ca->ca_intr[0];
    367 		oirq = ca->ca_intr[1];
    368 		iirq = ca->ca_intr[2];
    369 		cirq_type = oirq_type = iirq_type = IST_EDGE;
    370 	}
    371 
    372 	intr_establish(cirq, cirq_type, IPL_BIO, awacs_status_intr, sc);
    373 	intr_establish(oirq, oirq_type, IPL_AUDIO, awacs_intr, sc);
    374 	intr_establish(iirq, iirq_type, IPL_AUDIO, awacs_intr, sc);
    375 
    376 	mutex_init(&sc->sc_lock, MUTEX_DEFAULT, IPL_NONE);
    377 	mutex_init(&sc->sc_intr_lock, MUTEX_DEFAULT, IPL_AUDIO);
    378 
    379 	cv_init(&sc->sc_event, "awacs_wait");
    380 
    381 	/* check if the chip is a screamer */
    382 	sc->sc_screamer = (of_compatible(ca->ca_node, screamer) != -1);
    383 	if (!sc->sc_screamer) {
    384 		/* look for 'sound' child node */
    385 		int sound_node;
    386 
    387 		sound_node = OF_child(ca->ca_node);
    388 		while ((sound_node != 0) && (!sc->sc_screamer)) {
    389 
    390 			sc->sc_screamer =
    391 			    (of_compatible(sound_node, screamer) != -1);
    392 			sound_node = OF_peer(sound_node);
    393 		}
    394 	}
    395 
    396 	if (sc->sc_screamer) {
    397 		printf(" Screamer");
    398 	}
    399 
    400 	printf(": irq %d,%d,%d\n", cirq, oirq, iirq);
    401 
    402 	sc->vol_l = 0;
    403 	sc->vol_r = 0;
    404 
    405 	memcpy(&sc->sc_formats, awacs_formats, sizeof(awacs_formats));
    406 
    407 	/* XXX Uni-North based models don't have byteswap capability. */
    408 	if (OF_finddevice("/uni-n") == -1) {
    409 
    410 		sc->sc_flags |= AWACS_CAP_BSWAP;
    411 	} else {
    412 
    413 		AUFMT_INVALIDATE(&sc->sc_formats[AWACS_FORMATS_LE]);
    414 	}
    415 
    416 	sc->sc_soundctl = AWACS_INPUT_SUBFRAME0 | AWACS_OUTPUT_SUBFRAME0 |
    417 		AWACS_RATE_44100 | AWACS_INTR_PORTCHG;
    418 	awacs_write_reg(sc, AWACS_SOUND_CTRL, sc->sc_soundctl);
    419 
    420 	sc->sc_codecctl0 = AWACS_CODEC_ADDR0 | AWACS_CODEC_EMSEL0;
    421 	sc->sc_codecctl1 = AWACS_CODEC_ADDR1 | AWACS_CODEC_EMSEL0;
    422 	sc->sc_codecctl2 = AWACS_CODEC_ADDR2 | AWACS_CODEC_EMSEL0;
    423 	sc->sc_codecctl4 = AWACS_CODEC_ADDR4 | AWACS_CODEC_EMSEL0;
    424 	sc->sc_codecctl5 = AWACS_CODEC_ADDR5 | AWACS_CODEC_EMSEL0;
    425 	sc->sc_codecctl6 = AWACS_CODEC_ADDR6 | AWACS_CODEC_EMSEL0;
    426 	sc->sc_codecctl7 = AWACS_CODEC_ADDR7 | AWACS_CODEC_EMSEL0;
    427 
    428 	sc->sc_codecctl0 |= AWACS_INPUT_CD | AWACS_DEFAULT_CD_GAIN;
    429 	awacs_write_codec(sc, sc->sc_codecctl0);
    430 
    431 	/* Set loopthrough for external mixer on beige G3 */
    432 	sc->sc_codecctl1 |= AWACS_LOOP_THROUGH;
    433 
    434         printf("%s: ", device_xname(sc->sc_dev));
    435 
    436 	/*
    437 	 * all(?) awacs have GPIOs to detect if there's something plugged into
    438 	 * the headphone jack. The other GPIOs are either used for other jacks
    439 	 * ( the PB3400c's microphone jack for instance ) or unused.
    440 	 * The problem is that there are at least three different ways how
    441 	 * those GPIOs are wired to the actual jacks.
    442 	 * For now we bother only with headphone detection
    443 	 */
    444 	perch = OF_finddevice("/perch");
    445 	root_node = OF_finddevice("/");
    446 	if (of_compatible(root_node, detect_reversed) != -1) {
    447 
    448 		/* 0x02 is for the microphone jack, high active */
    449 		/*
    450 		 * for some reason the gpio for the headphones jack is low
    451 		 * active on the PB3400 and similar machines
    452 		 */
    453 		sc->sc_headphones_mask = 0x8;
    454 		sc->sc_headphones_in = 0x0;
    455 	} else if ((perch != -1) ||
    456 	    (of_compatible(root_node, use_gpio4) != -1)) {
    457 		/*
    458 		 * this is for the beige G3's 'personality card' which uses
    459 		 * yet another wiring of the headphone detect GPIOs
    460 		 * some G4s use it as well
    461 		 */
    462 		sc->sc_headphones_mask = 0x04;
    463 		sc->sc_headphones_in = 0x04;
    464 	} else {
    465 		/* while on most machines it's high active as well */
    466 		sc->sc_headphones_mask = 0x8;
    467 		sc->sc_headphones_in = 0x8;
    468 	}
    469 
    470 	if (of_compatible(root_node, no_parallel_output) != -1)
    471 		sc->sc_need_parallel_output = 0;
    472 	else {
    473 		sc->sc_need_parallel_output = 1;
    474 		sc->sc_codecctl1 |= AWACS_PARALLEL_OUTPUT;
    475 	}
    476 
    477 	if (awacs_check_headphones(sc)) {
    478 
    479                 /* default output to headphones */
    480                 printf("headphones\n");
    481                 sc->sc_output_mask = OUTPUT_HEADPHONES;
    482         } else {
    483 
    484                 /* default output to speakers */
    485                 printf("speaker\n");
    486                 sc->sc_output_mask = OUTPUT_SPEAKER;
    487         }
    488 	sc->sc_output_wanted = sc->sc_output_mask;
    489 	awacs_select_output(sc, sc->sc_output_mask);
    490 
    491 	delay(100);
    492 	if (sc->sc_screamer) {
    493 		awacs_write_codec(sc, sc->sc_codecctl6);
    494 		awacs_write_codec(sc, sc->sc_codecctl5);
    495 		delay(2);
    496 		awacs_write_codec(sc, sc->sc_codecctl1);
    497 		awacs_write_codec(sc, sc->sc_codecctl7);
    498 	}
    499 
    500 	/* default input from CD */
    501 	sc->sc_record_source = 1 << 0;
    502 	sc->sc_codecctl0 &= ~AWACS_INPUT_MASK;
    503 	sc->sc_codecctl0 |= AWACS_INPUT_CD;
    504 	awacs_write_codec(sc, sc->sc_codecctl0);
    505 
    506 	/* Enable interrupts and looping mode. */
    507 	/* XXX ... */
    508 
    509 	sc->sc_codecctl1 |= AWACS_LOOP_THROUGH;
    510 	if (sc->sc_need_parallel_output)
    511 		sc->sc_codecctl1 |= AWACS_PARALLEL_OUTPUT;
    512 	awacs_write_codec(sc, sc->sc_codecctl1);
    513 
    514 #if NSGSMIX > 0
    515 	sc->sc_sgsmix = NULL;
    516 #endif
    517 	sc->sc_have_perch = 0;
    518 	if (perch != -1) {
    519 
    520 		len = OF_getprop(perch, "compatible", compat, 255);
    521 		if (len > 0) {
    522 			printf("%s: found '%s' personality card\n",
    523 			    device_xname(sc->sc_dev), compat);
    524 			sc->sc_have_perch = 1;
    525 			config_finalize_register(sc->sc_dev,
    526 			    awacs_setup_sgsmix);
    527 		}
    528 	}
    529 
    530 	/* Set initial volume[s] */
    531 	awacs_set_volume(sc, 144, 144);
    532 	awacs_set_loopthrough_volume(sc, 0, 0);
    533 
    534 	audio_attach_mi(&awacs_hw_if, sc, sc->sc_dev);
    535 
    536 	if (kthread_create(PRI_NONE, 0, NULL, awacs_thread, sc,
    537 	    &sc->sc_thread, "%s", "awacs") != 0) {
    538 		printf("awacs: unable to create event kthread");
    539 	}
    540 	pmf_device_register(sc->sc_dev, NULL, NULL);
    541 }
    542 
    543 static int
    544 awacs_setup_sgsmix(device_t cookie)
    545 {
    546 	struct awacs_softc *sc = device_private(cookie);
    547 #if NSGSMIX > 0
    548 	device_t dv;
    549 	deviter_t di;
    550 #endif
    551 
    552 	if (!sc->sc_have_perch)
    553 		return 0;
    554 #if NSGSMIX > 0
    555 	/* look for sgsmix */
    556 	for (dv = deviter_first(&di, DEVITER_F_ROOT_FIRST);
    557 	     dv != NULL;
    558 	     dv = deviter_next(&di)) {
    559 		if (device_is_a(dv, "sgsmix")) {
    560 			sc->sc_sgsmix = dv;
    561 			break;
    562 		}
    563 	}
    564 	deviter_release(&di);
    565 	if (sc->sc_sgsmix == NULL)
    566 		return 0;
    567 
    568 	printf("%s: using %s\n", device_xname(sc->sc_dev),
    569 	    device_xname(sc->sc_sgsmix));
    570 
    571 	sc->sc_codecctl1 &= ~AWACS_MUTE_HEADPHONE;
    572 	awacs_write_codec(sc, sc->sc_codecctl1);
    573 
    574 	awacs_select_output(sc, sc->sc_output_mask);
    575 	awacs_set_volume(sc, sc->vol_l, sc->vol_r);
    576 	awacs_set_bass(sc, 128);
    577 	awacs_set_treble(sc, 128);
    578 	cv_signal(&sc->sc_event);
    579 #endif
    580 	return 0;
    581 }
    582 
    583 
    584 static inline u_int
    585 awacs_read_reg(struct awacs_softc *sc, int reg)
    586 {
    587 
    588 	return bus_space_read_4(sc->sc_tag, sc->sc_regh, reg);
    589 }
    590 
    591 static inline void
    592 awacs_write_reg(struct awacs_softc *sc, int reg, int val)
    593 {
    594 
    595 	bus_space_write_4(sc->sc_tag, sc->sc_regh, reg, val);
    596 }
    597 
    598 static void
    599 awacs_write_codec(struct awacs_softc *sc, int value)
    600 {
    601 
    602 	do {
    603 		delay(100);
    604 	} while (awacs_read_reg(sc, AWACS_CODEC_CTRL) & AWACS_CODEC_BUSY);
    605 
    606 	awacs_write_reg(sc, AWACS_CODEC_CTRL, value);
    607 
    608 	do {
    609 		delay(100);
    610 	} while (awacs_read_reg(sc, AWACS_CODEC_CTRL) & AWACS_CODEC_BUSY);
    611 }
    612 
    613 static int
    614 awacs_intr(void *v)
    615 {
    616 	struct awacs_softc *sc;
    617 	struct dbdma_command *cmd;
    618 	int count;
    619 	int status;
    620 
    621 	sc = v;
    622 	mutex_spin_enter(&sc->sc_intr_lock);
    623 	cmd = sc->sc_odmacmd;
    624 	count = sc->sc_opages;
    625 	/* Fill used buffer(s). */
    626 	while (count-- > 0) {
    627 		/* if DBDMA_INT_ALWAYS */
    628 		if (in16rb(&cmd->d_command) & 0x30) {	/* XXX */
    629 			status = in16rb(&cmd->d_status);
    630 			cmd->d_status = 0;
    631 			if (status)	/* status == 0x8400 */
    632 				if (sc->sc_ointr)
    633 					(*sc->sc_ointr)(sc->sc_oarg);
    634 		}
    635 		cmd++;
    636 	}
    637 	mutex_spin_exit(&sc->sc_intr_lock);
    638 
    639 	return 1;
    640 }
    641 
    642 /*
    643  * Close function is called at splaudio().
    644  */
    645 static void
    646 awacs_close(void *h)
    647 {
    648 	struct awacs_softc *sc;
    649 
    650 	sc = h;
    651 	awacs_halt_output(sc);
    652 	awacs_halt_input(sc);
    653 
    654 	sc->sc_ointr = 0;
    655 	sc->sc_iintr = 0;
    656 }
    657 
    658 static int
    659 awacs_query_encoding(void *h, struct audio_encoding *ae)
    660 {
    661 	struct awacs_softc *sc;
    662 
    663 	sc = h;
    664 	ae->flags = AUDIO_ENCODINGFLAG_EMULATED;
    665 
    666 	switch (ae->index) {
    667 	case 0:
    668 		strcpy(ae->name, AudioEslinear);
    669 		ae->encoding = AUDIO_ENCODING_SLINEAR;
    670 		ae->precision = 16;
    671 		ae->flags = 0;
    672 		return 0;
    673 	case 1:
    674 		strcpy(ae->name, AudioEslinear_be);
    675 		ae->encoding = AUDIO_ENCODING_SLINEAR_BE;
    676 		ae->precision = 16;
    677 		ae->flags = 0;
    678 		return 0;
    679 	case 2:
    680 		strcpy(ae->name, AudioEslinear_le);
    681 		ae->encoding = AUDIO_ENCODING_SLINEAR_LE;
    682 		ae->precision = 16;
    683 		if (sc->sc_flags & AWACS_CAP_BSWAP)
    684 			ae->flags = 0;
    685 		return 0;
    686 	case 3:
    687 		strcpy(ae->name, AudioEulinear_be);
    688 		ae->encoding = AUDIO_ENCODING_ULINEAR_BE;
    689 		ae->precision = 16;
    690 		return 0;
    691 	case 4:
    692 		strcpy(ae->name, AudioEulinear_le);
    693 		ae->encoding = AUDIO_ENCODING_ULINEAR_LE;
    694 		ae->precision = 16;
    695 		return 0;
    696 	case 5:
    697 		strcpy(ae->name, AudioEmulaw);
    698 		ae->encoding = AUDIO_ENCODING_ULAW;
    699 		ae->precision = 8;
    700 		return 0;
    701 	case 6:
    702 		strcpy(ae->name, AudioEalaw);
    703 		ae->encoding = AUDIO_ENCODING_ALAW;
    704 		ae->precision = 8;
    705 		return 0;
    706 	default:
    707 		return EINVAL;
    708 	}
    709 }
    710 
    711 static int
    712 awacs_set_params(void *h, int setmode, int usemode,
    713 		 audio_params_t *play, audio_params_t *rec,
    714 		 stream_filter_list_t *pfil, stream_filter_list_t *rfil)
    715 {
    716 	struct awacs_softc *sc;
    717 	audio_params_t *p;
    718 	stream_filter_list_t *fil;
    719 	int mode, i;
    720 
    721 	sc = h;
    722 	p = NULL;
    723 	/*
    724 	 * This device only has one clock, so make the sample rates match.
    725 	 */
    726 	if (play->sample_rate != rec->sample_rate &&
    727 	    usemode == (AUMODE_PLAY | AUMODE_RECORD)) {
    728 		if (setmode == AUMODE_PLAY) {
    729 			rec->sample_rate = play->sample_rate;
    730 			setmode |= AUMODE_RECORD;
    731 		} else if (setmode == AUMODE_RECORD) {
    732 			play->sample_rate = rec->sample_rate;
    733 			setmode |= AUMODE_PLAY;
    734 		} else
    735 			return EINVAL;
    736 	}
    737 
    738 	for (mode = AUMODE_RECORD; mode != -1;
    739 	     mode = mode == AUMODE_RECORD ? AUMODE_PLAY : -1) {
    740 		if ((setmode & mode) == 0)
    741 			continue;
    742 
    743 		p = mode == AUMODE_PLAY ? play : rec;
    744 		fil = mode == AUMODE_PLAY ? pfil : rfil;
    745 		switch (p->sample_rate) {
    746 		case 48000:	/* aurateconv */
    747 		case 44100:
    748 		case 29400:
    749 		case 22050:
    750 		case 17640:
    751 		case 14700:
    752 		case 11025:
    753 		case 8820:
    754 		case 8000:	/* aurateconv */
    755 		case 7350:
    756 			break;
    757 		default:
    758 			return EINVAL;
    759 		}
    760 		awacs_write_reg(sc, AWACS_BYTE_SWAP, 0);
    761 		i = auconv_set_converter(sc->sc_formats, AWACS_NFORMATS,
    762 					 mode, p, true, fil);
    763 		if (i < 0)
    764 			return EINVAL;
    765 		if (i == AWACS_FORMATS_LE)
    766 			awacs_write_reg(sc, AWACS_BYTE_SWAP, 1);
    767 		if (fil->req_size > 0)
    768 			p = &fil->filters[0].param;
    769 		if (awacs_set_rate(sc, p))
    770 			return EINVAL;
    771 	}
    772 	return 0;
    773 }
    774 
    775 static int
    776 awacs_round_blocksize(void *h, int size, int mode, const audio_params_t *param)
    777 {
    778 
    779 	if (size < PAGE_SIZE)
    780 		size = PAGE_SIZE;
    781 	return size & ~PGOFSET;
    782 }
    783 
    784 static int
    785 awacs_halt_output(void *h)
    786 {
    787 	struct awacs_softc *sc;
    788 
    789 	sc = h;
    790 	dbdma_stop(sc->sc_odma);
    791 	dbdma_reset(sc->sc_odma);
    792 	return 0;
    793 }
    794 
    795 static int
    796 awacs_halt_input(void *h)
    797 {
    798 	struct awacs_softc *sc;
    799 
    800 	sc = h;
    801 	dbdma_stop(sc->sc_idma);
    802 	dbdma_reset(sc->sc_idma);
    803 	return 0;
    804 }
    805 
    806 static int
    807 awacs_getdev(void *h, struct audio_device *retp)
    808 {
    809 
    810 	*retp = awacs_device;
    811 	return 0;
    812 }
    813 
    814 enum {
    815 	AWACS_MONITOR_CLASS,
    816 	AWACS_OUTPUT_CLASS,
    817 	AWACS_RECORD_CLASS,
    818 	AWACS_OUTPUT_SELECT,
    819 	AWACS_VOL_MASTER,
    820 	AWACS_INPUT_SELECT,
    821 	AWACS_VOL_INPUT,
    822 	AWACS_VOL_MONITOR,
    823 	AWACS_BASS,
    824 	AWACS_TREBLE,
    825 	AWACS_ENUM_LAST
    826 };
    827 
    828 static int
    829 awacs_set_port(void *h, mixer_ctrl_t *mc)
    830 {
    831 	struct awacs_softc *sc;
    832 	int l, r;
    833 
    834 	DPRINTF("awacs_set_port dev = %d, type = %d\n", mc->dev, mc->type);
    835 	sc = h;
    836 	l = mc->un.value.level[AUDIO_MIXER_LEVEL_LEFT];
    837 	r = mc->un.value.level[AUDIO_MIXER_LEVEL_RIGHT];
    838 
    839 	switch (mc->dev) {
    840 	case AWACS_OUTPUT_SELECT:
    841 		/* No change necessary? */
    842 		if (mc->un.mask == sc->sc_output_mask)
    843 			return 0;
    844 		awacs_select_output(sc, mc->un.mask);
    845 		return 0;
    846 
    847 	case AWACS_VOL_MASTER:
    848 		awacs_set_volume(sc, l, r);
    849 		return 0;
    850 
    851 	case AWACS_INPUT_SELECT:
    852 		/* no change necessary? */
    853 		if (mc->un.mask == sc->sc_record_source)
    854 			return 0;
    855 		switch (mc->un.mask) {
    856 		case 1 << 0: /* CD */
    857 			sc->sc_codecctl0 &= ~AWACS_INPUT_MASK;
    858 			sc->sc_codecctl0 |= AWACS_INPUT_CD;
    859 			awacs_write_codec(sc, sc->sc_codecctl0);
    860 			break;
    861 		case 1 << 1: /* microphone */
    862 			sc->sc_codecctl0 &= ~AWACS_INPUT_MASK;
    863 			sc->sc_codecctl0 |= AWACS_INPUT_MICROPHONE;
    864 			awacs_write_codec(sc, sc->sc_codecctl0);
    865 			break;
    866 		case 1 << 2: /* line in */
    867 			sc->sc_codecctl0 &= ~AWACS_INPUT_MASK;
    868 			sc->sc_codecctl0 |= AWACS_INPUT_LINE;
    869 			awacs_write_codec(sc, sc->sc_codecctl0);
    870 			break;
    871 		default: /* invalid argument */
    872 			return EINVAL;
    873 		}
    874 		sc->sc_record_source = mc->un.mask;
    875 		return 0;
    876 
    877 	case AWACS_VOL_INPUT:
    878 		sc->sc_codecctl0 &= ~0xff;
    879 		sc->sc_codecctl0 |= (l & 0xf0) | (r >> 4);
    880 		awacs_write_codec(sc, sc->sc_codecctl0);
    881 		return 0;
    882 
    883 	case AWACS_VOL_MONITOR:
    884 		awacs_set_loopthrough_volume(sc, l, r);
    885 		return 0;
    886 
    887 #if NSGSMIX > 0
    888 	case AWACS_BASS:
    889 		awacs_set_bass(sc, l);
    890 		return 0;
    891 
    892 	case AWACS_TREBLE:
    893 		awacs_set_treble(sc, l);
    894 		return 0;
    895 #endif
    896 	}
    897 
    898 	return ENXIO;
    899 }
    900 
    901 static int
    902 awacs_get_port(void *h, mixer_ctrl_t *mc)
    903 {
    904 	struct awacs_softc *sc;
    905 	int l, r, vol;
    906 
    907 	sc = h;
    908 	switch (mc->dev) {
    909 	case AWACS_OUTPUT_SELECT:
    910 		mc->un.mask = sc->sc_output_mask;
    911 		return 0;
    912 
    913 	case AWACS_VOL_MASTER:
    914 		mc->un.value.level[AUDIO_MIXER_LEVEL_LEFT] = sc->vol_l;
    915 		mc->un.value.level[AUDIO_MIXER_LEVEL_RIGHT] = sc->vol_r;
    916 		return 0;
    917 
    918 	case AWACS_INPUT_SELECT:
    919 		mc->un.mask = sc->sc_record_source;
    920 		return 0;
    921 
    922 	case AWACS_VOL_INPUT:
    923 		vol = sc->sc_codecctl0 & 0xff;
    924 		l = (vol & 0xf0);
    925 		r = (vol & 0x0f) << 4;
    926 		mc->un.value.level[AUDIO_MIXER_LEVEL_LEFT] = l;
    927 		mc->un.value.level[AUDIO_MIXER_LEVEL_RIGHT] = r;
    928 		return 0;
    929 
    930 	case AWACS_VOL_MONITOR:
    931 		vol = sc->sc_codecctl5 & 0x3cf;
    932 		l = (vol & 0x3c0) >> 6;
    933 		r = vol & 0xf;
    934 		mc->un.value.level[AUDIO_MIXER_LEVEL_LEFT] = (15 - l) << 4;
    935 		mc->un.value.level[AUDIO_MIXER_LEVEL_RIGHT] = (15 - r) << 4;
    936 		return 0;
    937 
    938 #if NSGSMIX > 0
    939 	case AWACS_BASS:
    940 		mc->un.value.level[AUDIO_MIXER_LEVEL_MONO] = sc->sc_bass;
    941 		return 0;
    942 
    943 	case AWACS_TREBLE:
    944 		mc->un.value.level[AUDIO_MIXER_LEVEL_MONO] = sc->sc_treble;
    945 		return 0;
    946 #endif
    947 
    948 	default:
    949 		return ENXIO;
    950 	}
    951 
    952 	return 0;
    953 }
    954 
    955 static int
    956 awacs_query_devinfo(void *h, mixer_devinfo_t *dip)
    957 {
    958 #if NSGSMIX > 0
    959 	struct awacs_softc *sc = h;
    960 #endif
    961 
    962 	switch (dip->index) {
    963 
    964 	case AWACS_OUTPUT_SELECT:
    965 		dip->mixer_class = AWACS_OUTPUT_CLASS;
    966 		strcpy(dip->label.name, AudioNoutput);
    967 		dip->type = AUDIO_MIXER_SET;
    968 		dip->prev = dip->next = AUDIO_MIXER_LAST;
    969 		dip->un.s.num_mem = 2;
    970 		strcpy(dip->un.s.member[0].label.name, AudioNspeaker);
    971 		dip->un.s.member[0].mask = 1 << 0;
    972 		strcpy(dip->un.s.member[1].label.name, AudioNheadphone);
    973 		dip->un.s.member[1].mask = 1 << 1;
    974 		return 0;
    975 
    976 	case AWACS_VOL_MASTER:
    977 		dip->mixer_class = AWACS_OUTPUT_CLASS;
    978 		strcpy(dip->label.name, AudioNmaster);
    979 		dip->type = AUDIO_MIXER_VALUE;
    980 		dip->prev = dip->next = AUDIO_MIXER_LAST;
    981 		dip->un.v.num_channels = 2;
    982 		dip->un.v.delta = 16;
    983 		strcpy(dip->un.v.units.name, AudioNvolume);
    984 		return 0;
    985 
    986 	case AWACS_VOL_MONITOR:
    987 		dip->mixer_class = AWACS_MONITOR_CLASS;
    988 		strcpy(dip->label.name, AudioNmonitor);
    989 		dip->type = AUDIO_MIXER_VALUE;
    990 		dip->prev = dip->next = AUDIO_MIXER_LAST;
    991 		dip->un.v.num_channels = 2;
    992 		strcpy(dip->un.v.units.name, AudioNvolume);
    993 		return 0;
    994 
    995 #if NSGSMIX > 0
    996 	case AWACS_BASS:
    997 		if (sc->sc_sgsmix == NULL)
    998 			return ENXIO;
    999 		dip->mixer_class = AWACS_OUTPUT_CLASS;
   1000 		strcpy(dip->label.name, AudioNbass);
   1001 		dip->type = AUDIO_MIXER_VALUE;
   1002 		dip->prev = dip->next = AUDIO_MIXER_LAST;
   1003 		dip->un.v.num_channels = 1;
   1004 		strcpy(dip->un.v.units.name, AudioNbass);
   1005 		return 0;
   1006 
   1007 	case AWACS_TREBLE:
   1008 		if (sc->sc_sgsmix == NULL)
   1009 			return ENXIO;
   1010 		dip->mixer_class = AWACS_OUTPUT_CLASS;
   1011 		strcpy(dip->label.name, AudioNtreble);
   1012 		dip->type = AUDIO_MIXER_VALUE;
   1013 		dip->prev = dip->next = AUDIO_MIXER_LAST;
   1014 		dip->un.v.num_channels = 1;
   1015 		strcpy(dip->un.v.units.name, AudioNtreble);
   1016 		return 0;
   1017 #endif
   1018 
   1019 	case AWACS_INPUT_SELECT:
   1020 		dip->mixer_class = AWACS_RECORD_CLASS;
   1021 		strcpy(dip->label.name, AudioNsource);
   1022 		dip->type = AUDIO_MIXER_SET;
   1023 		dip->prev = dip->next = AUDIO_MIXER_LAST;
   1024 		dip->un.s.num_mem = 3;
   1025 		strcpy(dip->un.s.member[0].label.name, AudioNcd);
   1026 		dip->un.s.member[0].mask = 1 << 0;
   1027 		strcpy(dip->un.s.member[1].label.name, AudioNmicrophone);
   1028 		dip->un.s.member[1].mask = 1 << 1;
   1029 		strcpy(dip->un.s.member[2].label.name, AudioNline);
   1030 		dip->un.s.member[2].mask = 1 << 2;
   1031 		return 0;
   1032 
   1033 	case AWACS_VOL_INPUT:
   1034 		dip->mixer_class = AWACS_RECORD_CLASS;
   1035 		strcpy(dip->label.name, AudioNrecord);
   1036 		dip->type = AUDIO_MIXER_VALUE;
   1037 		dip->prev = dip->next = AUDIO_MIXER_LAST;
   1038 		dip->un.v.num_channels = 2;
   1039 		strcpy(dip->un.v.units.name, AudioNvolume);
   1040 		return 0;
   1041 
   1042 	case AWACS_MONITOR_CLASS:
   1043 		dip->mixer_class = AWACS_MONITOR_CLASS;
   1044 		strcpy(dip->label.name, AudioCmonitor);
   1045 		dip->type = AUDIO_MIXER_CLASS;
   1046 		dip->next = dip->prev = AUDIO_MIXER_LAST;
   1047 		return 0;
   1048 
   1049 	case AWACS_OUTPUT_CLASS:
   1050 		dip->mixer_class = AWACS_OUTPUT_CLASS;
   1051 		strcpy(dip->label.name, AudioCoutputs);
   1052 		dip->type = AUDIO_MIXER_CLASS;
   1053 		dip->next = dip->prev = AUDIO_MIXER_LAST;
   1054 		return 0;
   1055 
   1056 	case AWACS_RECORD_CLASS:
   1057 		dip->mixer_class = AWACS_RECORD_CLASS;
   1058 		strcpy(dip->label.name, AudioCrecord);
   1059 		dip->type = AUDIO_MIXER_CLASS;
   1060 		dip->next = dip->prev = AUDIO_MIXER_LAST;
   1061 		return 0;
   1062 	}
   1063 
   1064 	return ENXIO;
   1065 }
   1066 
   1067 static size_t
   1068 awacs_round_buffersize(void *h, int dir, size_t size)
   1069 {
   1070 
   1071 	if (size > 65536)
   1072 		size = 65536;
   1073 	return size;
   1074 }
   1075 
   1076 static paddr_t
   1077 awacs_mappage(void *h, void *mem, off_t off, int prot)
   1078 {
   1079 
   1080 	if (off < 0)
   1081 		return -1;
   1082 	return -1;	/* XXX */
   1083 }
   1084 
   1085 static int
   1086 awacs_get_props(void *h)
   1087 {
   1088 	return AUDIO_PROP_FULLDUPLEX /* | AUDIO_PROP_MMAP */;
   1089 }
   1090 
   1091 static int
   1092 awacs_trigger_output(void *h, void *start, void *end, int bsize,
   1093 		     void (*intr)(void *), void *arg,
   1094 		     const audio_params_t *param)
   1095 {
   1096 	struct awacs_softc *sc;
   1097 	struct dbdma_command *cmd;
   1098 	vaddr_t va;
   1099 	int i, len, intmode;
   1100 
   1101 	DPRINTF("trigger_output %p %p 0x%x\n", start, end, bsize);
   1102 	sc = h;
   1103 	cmd = sc->sc_odmacmd;
   1104 	sc->sc_ointr = intr;
   1105 	sc->sc_oarg = arg;
   1106 	sc->sc_opages = ((char *)end - (char *)start) / PAGE_SIZE;
   1107 
   1108 #ifdef DIAGNOSTIC
   1109 	if (sc->sc_opages > 16)
   1110 		panic("awacs_trigger_output");
   1111 #endif
   1112 
   1113 	va = (vaddr_t)start;
   1114 	len = 0;
   1115 	for (i = sc->sc_opages; i > 0; i--) {
   1116 		len += PAGE_SIZE;
   1117 		if (len < bsize)
   1118 			intmode = DBDMA_INT_NEVER;
   1119 		else {
   1120 			len = 0;
   1121 			intmode = DBDMA_INT_ALWAYS;
   1122 		}
   1123 
   1124 		DBDMA_BUILD(cmd, DBDMA_CMD_OUT_MORE, 0, PAGE_SIZE, vtophys(va),
   1125 			intmode, DBDMA_WAIT_NEVER, DBDMA_BRANCH_NEVER);
   1126 		va += PAGE_SIZE;
   1127 		cmd++;
   1128 	}
   1129 
   1130 	DBDMA_BUILD(cmd, DBDMA_CMD_NOP, 0, 0, 0,
   1131 		DBDMA_INT_NEVER, DBDMA_WAIT_NEVER, DBDMA_BRANCH_ALWAYS);
   1132 	out32rb(&cmd->d_cmddep, vtophys((vaddr_t)sc->sc_odmacmd));
   1133 
   1134 	dbdma_start(sc->sc_odma, sc->sc_odmacmd);
   1135 
   1136 	return 0;
   1137 }
   1138 
   1139 static int
   1140 awacs_trigger_input(void *h, void *start, void *end, int bsize,
   1141 		    void (*intr)(void *), void *arg,
   1142 		    const audio_params_t *param)
   1143 {
   1144 
   1145 	DPRINTF("awacs_trigger_input called\n");
   1146 	return 1;
   1147 }
   1148 
   1149 static void
   1150 awacs_get_locks(void *opaque, kmutex_t **intr, kmutex_t **thread)
   1151 {
   1152 	struct awacs_softc *sc = opaque;
   1153 
   1154 	*intr = &sc->sc_intr_lock;
   1155 	*thread = &sc->sc_lock;
   1156 }
   1157 
   1158 static void
   1159 awacs_select_output(struct awacs_softc *sc, int mask)
   1160 {
   1161 
   1162 #if NSGSMIX > 0
   1163 	if (sc->sc_sgsmix) {
   1164 		if (mask & OUTPUT_HEADPHONES) {
   1165 			/* mute speakers */
   1166 			sgsmix_set_speaker_vol(sc->sc_sgsmix, 0, 0);
   1167 			sgsmix_set_headphone_vol(sc->sc_sgsmix,
   1168 			    sc->vol_l, sc->vol_r);
   1169 		}
   1170 		if (mask & OUTPUT_SPEAKER) {
   1171 			/* mute headphones */
   1172 			sgsmix_set_speaker_vol(sc->sc_sgsmix,
   1173 			    sc->vol_l, sc->vol_r);
   1174 			sgsmix_set_headphone_vol(sc->sc_sgsmix, 0, 0);
   1175 		}
   1176 	} else {
   1177 #endif
   1178 	sc->sc_codecctl1 |= AWACS_MUTE_SPEAKER | AWACS_MUTE_HEADPHONE;
   1179 	if ((sc->vol_l > 0) || (sc->vol_r > 0)) {
   1180 		if (mask & OUTPUT_SPEAKER)
   1181 			sc->sc_codecctl1 &= ~AWACS_MUTE_SPEAKER;
   1182 		if (mask & OUTPUT_HEADPHONES)
   1183 			sc->sc_codecctl1 &= ~AWACS_MUTE_HEADPHONE;
   1184 	}
   1185 	awacs_write_codec(sc, sc->sc_codecctl1);
   1186 #if NSGSMIX > 0
   1187 	}
   1188 #endif
   1189 	sc->sc_output_mask = mask;
   1190 }
   1191 
   1192 static void
   1193 awacs_set_speaker_volume(struct awacs_softc *sc, int left, int right)
   1194 {
   1195 
   1196 #if NSGSMIX > 0
   1197 	if (sc->sc_sgsmix) {
   1198 		if (sc->sc_output_mask & OUTPUT_SPEAKER)
   1199 			sgsmix_set_speaker_vol(sc->sc_sgsmix, left, right);
   1200 	} else
   1201 #endif
   1202 	{
   1203 		int lval;
   1204 		int rval;
   1205 		uint32_t codecctl = sc->sc_codecctl1;
   1206 
   1207 		lval = 15 - ((left  & 0xf0) >> 4);
   1208 		rval = 15 - ((right & 0xf0) >> 4);
   1209 		DPRINTF("speaker_volume %d %d\n", lval, rval);
   1210 
   1211 		sc->sc_codecctl4 &= ~0x3cf;
   1212 		sc->sc_codecctl4 |= (lval << 6) | rval;
   1213 		awacs_write_codec(sc, sc->sc_codecctl4);
   1214 		if ((left == 0) && (right == 0)) {
   1215 			/*
   1216 			 * max. attenuation doesn't mean silence so we need to
   1217 			 * mute the output channel here
   1218 			 */
   1219 			codecctl |= AWACS_MUTE_SPEAKER;
   1220 		} else if (sc->sc_output_mask & OUTPUT_SPEAKER) {
   1221 			codecctl &= ~AWACS_MUTE_SPEAKER;
   1222 		}
   1223 
   1224 		if (codecctl != sc->sc_codecctl1) {
   1225 
   1226 			sc->sc_codecctl1 = codecctl;
   1227 			awacs_write_codec(sc, sc->sc_codecctl1);
   1228 		}
   1229 	}
   1230 }
   1231 
   1232 static void
   1233 awacs_set_ext_volume(struct awacs_softc *sc, int left, int right)
   1234 {
   1235 
   1236 #if NSGSMIX > 0
   1237 	if (sc->sc_sgsmix) {
   1238 		if (sc->sc_output_mask & OUTPUT_HEADPHONES)
   1239 			sgsmix_set_headphone_vol(sc->sc_sgsmix, left, right);
   1240 	} else
   1241 #endif
   1242 	{
   1243 		int lval;
   1244 		int rval;
   1245 		uint32_t codecctl = sc->sc_codecctl1;
   1246 
   1247 		lval = 15 - ((left  & 0xf0) >> 4);
   1248 		rval = 15 - ((right & 0xf0) >> 4);
   1249 		DPRINTF("ext_volume %d %d\n", lval, rval);
   1250 
   1251 		sc->sc_codecctl2 &= ~0x3cf;
   1252 		sc->sc_codecctl2 |= (lval << 6) | rval;
   1253 		awacs_write_codec(sc, sc->sc_codecctl2);
   1254 
   1255 		if ((left == 0) && (right == 0)) {
   1256 			/*
   1257 			 * max. attenuation doesn't mean silence so we need to
   1258 			 * mute the output channel here
   1259 			 */
   1260 			codecctl |= AWACS_MUTE_HEADPHONE;
   1261 		} else if (sc->sc_output_mask & OUTPUT_HEADPHONES) {
   1262 
   1263 			codecctl &= ~AWACS_MUTE_HEADPHONE;
   1264 		}
   1265 
   1266 		if (codecctl != sc->sc_codecctl1) {
   1267 
   1268 			sc->sc_codecctl1 = codecctl;
   1269 			awacs_write_codec(sc, sc->sc_codecctl1);
   1270 		}
   1271 	}
   1272 }
   1273 
   1274 void
   1275 awacs_set_volume(struct awacs_softc *sc, int left, int right)
   1276 {
   1277 
   1278 	awacs_set_ext_volume(sc, left, right);
   1279 	awacs_set_speaker_volume(sc, left, right);
   1280 
   1281 	sc->vol_l = left;
   1282 	sc->vol_r = right;
   1283 }
   1284 
   1285 #if NSGSMIX > 0
   1286 static void
   1287 awacs_set_bass(struct awacs_softc *sc, int bass)
   1288 {
   1289 
   1290 	if (sc->sc_bass == bass)
   1291 		return;
   1292 
   1293 	sc->sc_bass = bass;
   1294 	if (sc->sc_sgsmix)
   1295 		sgsmix_set_bass_treble(sc->sc_sgsmix, sc->sc_bass,
   1296 		    sc->sc_treble);
   1297 }
   1298 
   1299 static void
   1300 awacs_set_treble(struct awacs_softc *sc, int treble)
   1301 {
   1302 
   1303 	if (sc->sc_treble == treble)
   1304 		return;
   1305 
   1306 	sc->sc_treble = treble;
   1307 	if (sc->sc_sgsmix)
   1308 		sgsmix_set_bass_treble(sc->sc_sgsmix, sc->sc_bass,
   1309 		    sc->sc_treble);
   1310 }
   1311 #endif
   1312 
   1313 void
   1314 awacs_set_loopthrough_volume(struct awacs_softc *sc, int left, int right)
   1315 {
   1316 	int lval;
   1317 	int rval;
   1318 
   1319 	lval = 15 - ((left  & 0xff) >> 4);
   1320 	rval = 15 - ((right & 0xff) >> 4);
   1321 	DPRINTF("loopthrough_volume %d %d\n", lval, rval);
   1322 
   1323 	sc->sc_codecctl5 &= ~0x3cf;
   1324 	sc->sc_codecctl5 |= (lval << 6) | rval;
   1325 	awacs_write_codec(sc, sc->sc_codecctl5);
   1326 }
   1327 
   1328 int
   1329 awacs_set_rate(struct awacs_softc *sc, const audio_params_t *p)
   1330 {
   1331 	int c;
   1332 
   1333 	switch (p->sample_rate) {
   1334 	case 44100:
   1335 		c = AWACS_RATE_44100;
   1336 		break;
   1337 	case 29400:
   1338 		c = AWACS_RATE_29400;
   1339 		break;
   1340 	case 22050:
   1341 		c = AWACS_RATE_22050;
   1342 		break;
   1343 	case 17640:
   1344 		c = AWACS_RATE_17640;
   1345 		break;
   1346 	case 14700:
   1347 		c = AWACS_RATE_14700;
   1348 		break;
   1349 	case 11025:
   1350 		c = AWACS_RATE_11025;
   1351 		break;
   1352 	case 8820:
   1353 		c = AWACS_RATE_8820;
   1354 		break;
   1355 	case 7350:
   1356 		c = AWACS_RATE_7350;
   1357 		break;
   1358 	default:
   1359 		return -1;
   1360 	}
   1361 
   1362 	sc->sc_soundctl &= ~AWACS_RATE_MASK;
   1363 	sc->sc_soundctl |= c;
   1364 	awacs_write_reg(sc, AWACS_SOUND_CTRL, sc->sc_soundctl);
   1365 
   1366 	return 0;
   1367 }
   1368 
   1369 static int
   1370 awacs_check_headphones(struct awacs_softc *sc)
   1371 {
   1372 	uint32_t reg;
   1373 	reg = awacs_read_reg(sc, AWACS_CODEC_STATUS);
   1374 	DPRINTF("%s: codec status reg %08x\n", device_xname(sc->sc_dev), reg);
   1375 	return ((reg & sc->sc_headphones_mask) == sc->sc_headphones_in);
   1376 }
   1377 
   1378 static int
   1379 awacs_status_intr(void *cookie)
   1380 {
   1381 	struct awacs_softc *sc = cookie;
   1382 	int mask;
   1383 
   1384 	mutex_spin_enter(&sc->sc_intr_lock);
   1385 	mask = awacs_check_headphones(sc) ? OUTPUT_HEADPHONES : OUTPUT_SPEAKER;
   1386 	if (mask != sc->sc_output_mask) {
   1387 
   1388 		sc->sc_output_wanted = mask;
   1389 		cv_signal(&sc->sc_event);
   1390 	}
   1391 	/* clear the interrupt */
   1392 	awacs_write_reg(sc, AWACS_SOUND_CTRL, sc->sc_soundctl | AWACS_PORTCHG);
   1393 	mutex_spin_exit(&sc->sc_intr_lock);
   1394 	return 1;
   1395 }
   1396 
   1397 static void
   1398 awacs_thread(void *cookie)
   1399 {
   1400 	struct awacs_softc *sc = cookie;
   1401 
   1402 	mutex_enter(&sc->sc_intr_lock);
   1403 	while (1) {
   1404 		cv_timedwait(&sc->sc_event, &sc->sc_intr_lock, hz);
   1405 		if (sc->sc_output_wanted == sc->sc_output_mask)
   1406 			continue;
   1407 
   1408 		awacs_select_output(sc, sc->sc_output_wanted);
   1409 		DPRINTF("%s: switching to %s\n", device_xname(sc->sc_dev),
   1410 		    (sc->sc_output_wanted & OUTPUT_SPEAKER) ?
   1411 		    "speaker" : "headphones");
   1412 	}
   1413 }
   1414