Home | History | Annotate | Line # | Download | only in pci
yds.c revision 1.28
      1 /*	$NetBSD: yds.c,v 1.28 2005/05/30 04:35:23 christos Exp $	*/
      2 
      3 /*
      4  * Copyright (c) 2000, 2001 Kazuki Sakamoto and Minoura Makoto.
      5  * All rights reserved.
      6  *
      7  * Redistribution and use in source and binary forms, with or without
      8  * modification, are permitted provided that the following conditions
      9  * are met:
     10  * 1. Redistributions of source code must retain the above copyright
     11  *    notice, this list of conditions and the following disclaimer.
     12  * 2. Redistributions in binary form must reproduce the above copyright
     13  *    notice, this list of conditions and the following disclaimer in the
     14  *    documentation and/or other materials provided with the distribution.
     15  *
     16  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
     17  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
     18  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
     19  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
     20  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
     21  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
     22  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
     23  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
     24  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
     25  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     26  */
     27 
     28 /*
     29  * Yamaha YMF724[B-F]/740[B-C]/744/754
     30  *
     31  * Documentation links:
     32  * - ftp://ftp.alsa-project.org/pub/manuals/yamaha/
     33  * - ftp://ftp.alsa-project.org/pub/manuals/yamaha/pci/
     34  *
     35  * TODO:
     36  * - FM synth volume (difficult: mixed before ac97)
     37  * - Digital in/out (SPDIF) support
     38  * - Effect??
     39  */
     40 
     41 #include <sys/cdefs.h>
     42 __KERNEL_RCSID(0, "$NetBSD: yds.c,v 1.28 2005/05/30 04:35:23 christos Exp $");
     43 
     44 #include "mpu.h"
     45 
     46 #include <sys/param.h>
     47 #include <sys/systm.h>
     48 #include <sys/kernel.h>
     49 #include <sys/fcntl.h>
     50 #include <sys/malloc.h>
     51 #include <sys/device.h>
     52 #include <sys/proc.h>
     53 
     54 #include <dev/pci/pcidevs.h>
     55 #include <dev/pci/pcireg.h>
     56 #include <dev/pci/pcivar.h>
     57 
     58 #include <sys/audioio.h>
     59 #include <dev/audio_if.h>
     60 #include <dev/mulaw.h>
     61 #include <dev/auconv.h>
     62 #include <dev/ic/ac97reg.h>
     63 #include <dev/ic/ac97var.h>
     64 #include <dev/ic/mpuvar.h>
     65 
     66 #include <machine/bus.h>
     67 #include <machine/intr.h>
     68 
     69 #include <dev/microcode/yds/yds_hwmcode.h>
     70 #include <dev/pci/ydsreg.h>
     71 #include <dev/pci/ydsvar.h>
     72 
     73 /* Debug */
     74 #undef YDS_USE_REC_SLOT
     75 #define YDS_USE_P44
     76 
     77 #ifdef AUDIO_DEBUG
     78 # define DPRINTF(x)	if (ydsdebug) printf x
     79 # define DPRINTFN(n,x)	if (ydsdebug>(n)) printf x
     80 int	ydsdebug = 0;
     81 #else
     82 # define DPRINTF(x)
     83 # define DPRINTFN(n,x)
     84 #endif
     85 #ifdef YDS_USE_REC_SLOT
     86 # define YDS_INPUT_SLOT 0	/* REC slot = ADC + loopbacks */
     87 #else
     88 # define YDS_INPUT_SLOT 1	/* ADC slot */
     89 #endif
     90 
     91 int	yds_match(struct device *, struct cfdata *, void *);
     92 void	yds_attach(struct device *, struct device *, void *);
     93 int	yds_intr(void *);
     94 
     95 #define DMAADDR(p)	((p)->map->dm_segs[0].ds_addr)
     96 #define KERNADDR(p)	((void *)((p)->addr))
     97 
     98 int	yds_allocmem(struct yds_softc *, size_t, size_t, struct yds_dma *);
     99 int	yds_freemem(struct yds_softc *, struct yds_dma *);
    100 
    101 #ifndef AUDIO_DEBUG
    102 #define YWRITE1(sc, r, x) bus_space_write_1((sc)->memt, (sc)->memh, (r), (x))
    103 #define YWRITE2(sc, r, x) bus_space_write_2((sc)->memt, (sc)->memh, (r), (x))
    104 #define YWRITE4(sc, r, x) bus_space_write_4((sc)->memt, (sc)->memh, (r), (x))
    105 #define YREAD1(sc, r)	bus_space_read_1((sc)->memt, (sc)->memh, (r))
    106 #define YREAD2(sc, r)	bus_space_read_2((sc)->memt, (sc)->memh, (r))
    107 #define YREAD4(sc, r)	bus_space_read_4((sc)->memt, (sc)->memh, (r))
    108 #else
    109 
    110 uint16_t YREAD2(struct yds_softc *, bus_size_t);
    111 uint32_t YREAD4(struct yds_softc *, bus_size_t);
    112 void	YWRITE1(struct yds_softc *, bus_size_t, uint8_t);
    113 void	YWRITE2(struct yds_softc *, bus_size_t, uint16_t);
    114 void	YWRITE4(struct yds_softc *, bus_size_t, uint32_t);
    115 
    116 uint16_t YREAD2(struct yds_softc *sc, bus_size_t r)
    117 {
    118 	DPRINTFN(5, (" YREAD2(0x%lX)\n", (unsigned long)r));
    119 	return bus_space_read_2(sc->memt, sc->memh, r);
    120 }
    121 uint32_t YREAD4(struct yds_softc *sc, bus_size_t r)
    122 {
    123 	DPRINTFN(5, (" YREAD4(0x%lX)\n", (unsigned long)r));
    124 	return bus_space_read_4(sc->memt, sc->memh, r);
    125 }
    126 void YWRITE1(struct yds_softc *sc, bus_size_t r, uint8_t x)
    127 {
    128 	DPRINTFN(5, (" YWRITE1(0x%lX,0x%lX)\n", (unsigned long)r,
    129 		     (unsigned long)x));
    130 	bus_space_write_1(sc->memt, sc->memh, r, x);
    131 }
    132 void YWRITE2(struct yds_softc *sc, bus_size_t r, uint16_t x)
    133 {
    134 	DPRINTFN(5, (" YWRITE2(0x%lX,0x%lX)\n", (unsigned long)r,
    135 		     (unsigned long)x));
    136 	bus_space_write_2(sc->memt, sc->memh, r, x);
    137 }
    138 void YWRITE4(struct yds_softc *sc, bus_size_t r, uint32_t x)
    139 {
    140 	DPRINTFN(5, (" YWRITE4(0x%lX,0x%lX)\n", (unsigned long)r,
    141 		     (unsigned long)x));
    142 	bus_space_write_4(sc->memt, sc->memh, r, x);
    143 }
    144 #endif
    145 
    146 #define	YWRITEREGION4(sc, r, x, c)	\
    147 	bus_space_write_region_4((sc)->memt, (sc)->memh, (r), (x), (c) / 4)
    148 
    149 CFATTACH_DECL(yds, sizeof(struct yds_softc),
    150     yds_match, yds_attach, NULL, NULL);
    151 
    152 int	yds_open(void *, int);
    153 void	yds_close(void *);
    154 int	yds_query_encoding(void *, struct audio_encoding *);
    155 int	yds_set_params(void *, int, int, audio_params_t *, audio_params_t *,
    156 		       stream_filter_list_t *, stream_filter_list_t *);
    157 int	yds_round_blocksize(void *, int, int, const audio_params_t *);
    158 int	yds_trigger_output(void *, void *, void *, int, void (*)(void *),
    159 			   void *, const audio_params_t *);
    160 int	yds_trigger_input(void *, void *, void *, int, void (*)(void *),
    161 			  void *, const audio_params_t *);
    162 int	yds_halt_output(void *);
    163 int	yds_halt_input(void *);
    164 int	yds_getdev(void *, struct audio_device *);
    165 int	yds_mixer_set_port(void *, mixer_ctrl_t *);
    166 int	yds_mixer_get_port(void *, mixer_ctrl_t *);
    167 void   *yds_malloc(void *, int, size_t, struct malloc_type *, int);
    168 void	yds_free(void *, void *, struct malloc_type *);
    169 size_t	yds_round_buffersize(void *, int, size_t);
    170 paddr_t yds_mappage(void *, void *, off_t, int);
    171 int	yds_get_props(void *);
    172 int	yds_query_devinfo(void *, mixer_devinfo_t *);
    173 
    174 int     yds_attach_codec(void *, struct ac97_codec_if *);
    175 int	yds_read_codec(void *, uint8_t, uint16_t *);
    176 int	yds_write_codec(void *, uint8_t, uint16_t);
    177 int     yds_reset_codec(void *);
    178 
    179 static u_int	yds_get_dstype(int);
    180 static int	yds_download_mcode(struct yds_softc *);
    181 static int	yds_allocate_slots(struct yds_softc *);
    182 static void	yds_configure_legacy(struct device *);
    183 static void	yds_enable_dsp(struct yds_softc *);
    184 static int	yds_disable_dsp(struct yds_softc *);
    185 static int	yds_ready_codec(struct yds_codec_softc *);
    186 static int	yds_halt(struct yds_softc *);
    187 static uint32_t yds_get_lpfq(u_int);
    188 static uint32_t yds_get_lpfk(u_int);
    189 static struct yds_dma *yds_find_dma(struct yds_softc *, void *);
    190 
    191 static int	yds_init(struct yds_softc *);
    192 static void	yds_powerhook(int, void *);
    193 
    194 #ifdef AUDIO_DEBUG
    195 static void	yds_dump_play_slot(struct yds_softc *, int);
    196 #define	YDS_DUMP_PLAY_SLOT(n, sc, bank) \
    197 	if (ydsdebug > (n)) yds_dump_play_slot(sc, bank)
    198 #else
    199 #define	YDS_DUMP_PLAY_SLOT(n, sc, bank)
    200 #endif /* AUDIO_DEBUG */
    201 
    202 static const struct audio_hw_if yds_hw_if = {
    203 	yds_open,
    204 	yds_close,
    205 	NULL,
    206 	yds_query_encoding,
    207 	yds_set_params,
    208 	yds_round_blocksize,
    209 	NULL,
    210 	NULL,
    211 	NULL,
    212 	NULL,
    213 	NULL,
    214 	yds_halt_output,
    215 	yds_halt_input,
    216 	NULL,
    217 	yds_getdev,
    218 	NULL,
    219 	yds_mixer_set_port,
    220 	yds_mixer_get_port,
    221 	yds_query_devinfo,
    222 	yds_malloc,
    223 	yds_free,
    224 	yds_round_buffersize,
    225 	yds_mappage,
    226 	yds_get_props,
    227 	yds_trigger_output,
    228 	yds_trigger_input,
    229 	NULL,
    230 };
    231 
    232 const struct audio_device yds_device = {
    233 	"Yamaha DS-1",
    234 	"",
    235 	"yds"
    236 };
    237 
    238 const static struct {
    239 	uint	id;
    240 	u_int	flags;
    241 #define YDS_CAP_MCODE_1			0x0001
    242 #define YDS_CAP_MCODE_1E		0x0002
    243 #define YDS_CAP_LEGACY_SELECTABLE	0x0004
    244 #define YDS_CAP_LEGACY_FLEXIBLE		0x0008
    245 #define YDS_CAP_HAS_P44			0x0010
    246 } yds_chip_capabliity_list[] = {
    247 	{ PCI_PRODUCT_YAMAHA_YMF724,
    248 	  YDS_CAP_MCODE_1|YDS_CAP_LEGACY_SELECTABLE },
    249 	/* 740[C] has only 32 slots.  But anyway we use only 2 */
    250 	{ PCI_PRODUCT_YAMAHA_YMF740,
    251 	  YDS_CAP_MCODE_1|YDS_CAP_LEGACY_SELECTABLE },	/* XXX NOT TESTED */
    252 	{ PCI_PRODUCT_YAMAHA_YMF740C,
    253 	  YDS_CAP_MCODE_1E|YDS_CAP_LEGACY_SELECTABLE },
    254 	{ PCI_PRODUCT_YAMAHA_YMF724F,
    255 	  YDS_CAP_MCODE_1E|YDS_CAP_LEGACY_SELECTABLE },
    256 	{ PCI_PRODUCT_YAMAHA_YMF744B,
    257 	  YDS_CAP_MCODE_1E|YDS_CAP_LEGACY_FLEXIBLE },
    258 	{ PCI_PRODUCT_YAMAHA_YMF754,
    259 	  YDS_CAP_MCODE_1E|YDS_CAP_LEGACY_FLEXIBLE|YDS_CAP_HAS_P44 },
    260 	{ 0, 0 }
    261 };
    262 #ifdef AUDIO_DEBUG
    263 #define YDS_CAP_BITS	"\020\005P44\004LEGFLEX\003LEGSEL\002MCODE1E\001MCODE1"
    264 #endif
    265 
    266 static const struct audio_format yds_formats[] = {
    267 	{NULL, AUMODE_PLAY | AUMODE_RECORD, AUDIO_ENCODING_SLINEAR_LE, 16, 16,
    268 	 1, AUFMT_MONAURAL, 0, {4000, 48000}},
    269 	{NULL, AUMODE_PLAY | AUMODE_RECORD, AUDIO_ENCODING_SLINEAR_LE, 16, 16,
    270 	 2, AUFMT_STEREO, 0, {4000, 48000}},
    271 	{NULL, AUMODE_PLAY | AUMODE_RECORD, AUDIO_ENCODING_ULINEAR_LE, 8, 8,
    272 	 1, AUFMT_MONAURAL, 0, {4000, 48000}},
    273 	{NULL, AUMODE_PLAY | AUMODE_RECORD, AUDIO_ENCODING_ULINEAR_LE, 8, 8,
    274 	 2, AUFMT_STEREO, 0, {4000, 48000}},
    275 };
    276 #define	YDS_NFORMATS	(sizeof(yds_formats) / sizeof(struct audio_format))
    277 
    278 #ifdef AUDIO_DEBUG
    279 static void
    280 yds_dump_play_slot(struct yds_softc *sc, int bank)
    281 {
    282 	int i, j;
    283 	uint32_t *p;
    284 	uint32_t num;
    285 	char *pa;
    286 
    287 	for (i = 0; i < N_PLAY_SLOTS; i++) {
    288 		printf("pbankp[%d] = %p,", i*2, sc->pbankp[i*2]);
    289 		printf("pbankp[%d] = %p\n", i*2+1, sc->pbankp[i*2+1]);
    290 	}
    291 
    292 	pa = (char *)DMAADDR(&sc->sc_ctrldata) + sc->pbankoff;
    293 	p = (uint32_t *)sc->ptbl;
    294 	printf("ptbl + 0: %d\n", *p++);
    295 	for (i = 0; i < N_PLAY_SLOTS; i++) {
    296 		printf("ptbl + %d: 0x%x, should be %p\n",
    297 		       i+1, *p,
    298 		       pa + i * sizeof(struct play_slot_ctrl_bank) *
    299 				N_PLAY_SLOT_CTRL_BANK);
    300 		p++;
    301 	}
    302 
    303 	num = le32toh(*(uint32_t*)sc->ptbl);
    304 	printf("numofplay = %d\n", num);
    305 
    306 	for (i = 0; i < num; i++) {
    307 		p = (uint32_t *)sc->pbankp[i*2];
    308 
    309 		printf("  pbankp[%d], bank 0 : %p\n", i*2, p);
    310 		for (j = 0;
    311 		     j < sizeof(struct play_slot_ctrl_bank) / sizeof(uint32_t);
    312 		     j++) {
    313 			printf("    0x%02x: 0x%08x\n",
    314 			       (unsigned)(j * sizeof(uint32_t)),
    315 			       (unsigned)*p++);
    316 		}
    317 
    318 		p = (uint32_t *)sc->pbankp[i*2 + 1];
    319 		printf("  pbankp[%d], bank 1 : %p\n", i*2 + 1, p);
    320 		for (j = 0;
    321 		     j < sizeof(struct play_slot_ctrl_bank) / sizeof(uint32_t);
    322 		     j++) {
    323 			printf("    0x%02x: 0x%08x\n",
    324 			       (unsigned)(j * sizeof(uint32_t)),
    325 			       (unsigned)*p++);
    326 		}
    327 	}
    328 }
    329 #endif /* AUDIO_DEBUG */
    330 
    331 static u_int
    332 yds_get_dstype(int id)
    333 {
    334 	int i;
    335 
    336 	for (i = 0; yds_chip_capabliity_list[i].id; i++) {
    337 		if (PCI_PRODUCT(id) == yds_chip_capabliity_list[i].id)
    338 			return yds_chip_capabliity_list[i].flags;
    339 	}
    340 
    341 	return -1;
    342 }
    343 
    344 static int
    345 yds_download_mcode(struct yds_softc *sc)
    346 {
    347 	static struct {
    348 		const uint32_t *mcode;
    349 		size_t size;
    350 	} ctrls[] = {
    351 		{yds_ds1_ctrl_mcode, sizeof(yds_ds1_ctrl_mcode)},
    352 		{yds_ds1e_ctrl_mcode, sizeof(yds_ds1e_ctrl_mcode)},
    353 	};
    354 	u_int ctrl;
    355 	const uint32_t *p;
    356 	size_t size;
    357 	int dstype;
    358 
    359 	if (sc->sc_flags & YDS_CAP_MCODE_1)
    360 		dstype = YDS_DS_1;
    361 	else if (sc->sc_flags & YDS_CAP_MCODE_1E)
    362 		dstype = YDS_DS_1E;
    363 	else
    364 		return 1;	/* unknown */
    365 
    366 	if (yds_disable_dsp(sc))
    367 		return 1;
    368 
    369 	/* Software reset */
    370 	YWRITE4(sc, YDS_MODE, YDS_MODE_RESET);
    371 	YWRITE4(sc, YDS_MODE, 0);
    372 
    373 	YWRITE4(sc, YDS_MAPOF_REC, 0);
    374 	YWRITE4(sc, YDS_MAPOF_EFFECT, 0);
    375 	YWRITE4(sc, YDS_PLAY_CTRLBASE, 0);
    376 	YWRITE4(sc, YDS_REC_CTRLBASE, 0);
    377 	YWRITE4(sc, YDS_EFFECT_CTRLBASE, 0);
    378 	YWRITE4(sc, YDS_WORK_BASE, 0);
    379 
    380 	ctrl = YREAD2(sc, YDS_GLOBAL_CONTROL);
    381 	YWRITE2(sc, YDS_GLOBAL_CONTROL, ctrl & ~0x0007);
    382 
    383 	/* Download DSP microcode. */
    384 	p = yds_dsp_mcode;
    385 	size = sizeof(yds_dsp_mcode);
    386 	YWRITEREGION4(sc, YDS_DSP_INSTRAM, p, size);
    387 
    388 	/* Download CONTROL microcode. */
    389 	p = ctrls[dstype].mcode;
    390 	size = ctrls[dstype].size;
    391 	YWRITEREGION4(sc, YDS_CTRL_INSTRAM, p, size);
    392 
    393 	yds_enable_dsp(sc);
    394 	delay(10 * 1000);		/* nessesary on my 724F (??) */
    395 
    396 	return 0;
    397 }
    398 
    399 static int
    400 yds_allocate_slots(struct yds_softc *sc)
    401 {
    402 	size_t pcs, rcs, ecs, ws, memsize;
    403 	void *mp;
    404 	uint32_t da;		/* DMA address */
    405 	char *va;		/* KVA */
    406 	off_t cb;
    407 	int i;
    408 	struct yds_dma *p;
    409 
    410 	/* Alloc DSP Control Data */
    411 	pcs = YREAD4(sc, YDS_PLAY_CTRLSIZE) * sizeof(uint32_t);
    412 	rcs = YREAD4(sc, YDS_REC_CTRLSIZE) * sizeof(uint32_t);
    413 	ecs = YREAD4(sc, YDS_EFFECT_CTRLSIZE) * sizeof(uint32_t);
    414 	ws = WORK_SIZE;
    415 	YWRITE4(sc, YDS_WORK_SIZE, ws / sizeof(uint32_t));
    416 
    417 	DPRINTF(("play control size : %d\n", (unsigned int)pcs));
    418 	DPRINTF(("rec control size : %d\n", (unsigned int)rcs));
    419 	DPRINTF(("eff control size : %d\n", (unsigned int)ecs));
    420 	DPRINTF(("work size : %d\n", (unsigned int)ws));
    421 #ifdef DIAGNOSTIC
    422 	if (pcs != sizeof(struct play_slot_ctrl_bank)) {
    423 		printf("%s: invalid play slot ctrldata %d != %d\n",
    424 		       sc->sc_dev.dv_xname, (unsigned int)pcs,
    425 		       (unsigned int)sizeof(struct play_slot_ctrl_bank));
    426 	if (rcs != sizeof(struct rec_slot_ctrl_bank))
    427 		printf("%s: invalid rec slot ctrldata %d != %d\n",
    428 		       sc->sc_dev.dv_xname, (unsigned int)rcs,
    429 		       (unsigned int)sizeof(struct rec_slot_ctrl_bank));
    430 	}
    431 #endif
    432 
    433 	memsize = N_PLAY_SLOTS*N_PLAY_SLOT_CTRL_BANK*pcs +
    434 		  N_REC_SLOT_CTRL*N_REC_SLOT_CTRL_BANK*rcs + ws;
    435 	memsize += (N_PLAY_SLOTS+1)*sizeof(uint32_t);
    436 
    437 	p = &sc->sc_ctrldata;
    438 	if (KERNADDR(p) == NULL) {
    439 		i = yds_allocmem(sc, memsize, 16, p);
    440 		if (i) {
    441 			printf("%s: couldn't alloc/map DSP DMA buffer, reason %d\n",
    442 				sc->sc_dev.dv_xname, i);
    443 			free(p, M_DEVBUF);
    444 			return 1;
    445 		}
    446 	}
    447 	mp = KERNADDR(p);
    448 	da = DMAADDR(p);
    449 
    450 	DPRINTF(("mp:%p, DMA addr:%p\n",
    451 		 mp, (void *)sc->sc_ctrldata.map->dm_segs[0].ds_addr));
    452 
    453 	memset(mp, 0, memsize);
    454 
    455 	/* Work space */
    456 	cb = 0;
    457 	va = (uint8_t *)mp;
    458 	YWRITE4(sc, YDS_WORK_BASE, da + cb);
    459 	cb += ws;
    460 
    461 	/* Play control data table */
    462 	sc->ptbl = (uint32_t *)(va + cb);
    463 	sc->ptbloff = cb;
    464 	YWRITE4(sc, YDS_PLAY_CTRLBASE, da + cb);
    465 	cb += (N_PLAY_SLOT_CTRL + 1) * sizeof(uint32_t);
    466 
    467 	/* Record slot control data */
    468 	sc->rbank = (struct rec_slot_ctrl_bank *)(va + cb);
    469 	YWRITE4(sc, YDS_REC_CTRLBASE, da + cb);
    470 	sc->rbankoff = cb;
    471 	cb += N_REC_SLOT_CTRL * N_REC_SLOT_CTRL_BANK * rcs;
    472 
    473 #if 0
    474 	/* Effect slot control data -- unused */
    475 	YWRITE4(sc, YDS_EFFECT_CTRLBASE, da + cb);
    476 	cb += N_EFFECT_SLOT_CTRL * N_EFFECT_SLOT_CTRL_BANK * ecs;
    477 #endif
    478 
    479 	/* Play slot control data */
    480 	sc->pbankoff = cb;
    481 	for (i=0; i < N_PLAY_SLOT_CTRL; i++) {
    482 		sc->pbankp[i*2] = (struct play_slot_ctrl_bank *)(va + cb);
    483 		*(sc->ptbl + i+1) = htole32(da + cb);
    484 		cb += pcs;
    485 
    486 		sc->pbankp[i*2+1] = (struct play_slot_ctrl_bank *)(va + cb);
    487 		cb += pcs;
    488 	}
    489 	/* Sync play control data table */
    490 	bus_dmamap_sync(sc->sc_dmatag, p->map,
    491 			sc->ptbloff, (N_PLAY_SLOT_CTRL+1) * sizeof(uint32_t),
    492 			BUS_DMASYNC_PREWRITE);
    493 
    494 	return 0;
    495 }
    496 
    497 static void
    498 yds_enable_dsp(struct yds_softc *sc)
    499 {
    500 
    501 	YWRITE4(sc, YDS_CONFIG, YDS_DSP_SETUP);
    502 }
    503 
    504 static int
    505 yds_disable_dsp(struct yds_softc *sc)
    506 {
    507 	int to;
    508 	uint32_t data;
    509 
    510 	data = YREAD4(sc, YDS_CONFIG);
    511 	if (data)
    512 		YWRITE4(sc, YDS_CONFIG, YDS_DSP_DISABLE);
    513 
    514 	for (to = 0; to < YDS_WORK_TIMEOUT; to++) {
    515 		if ((YREAD4(sc, YDS_STATUS) & YDS_STAT_WORK) == 0)
    516 			return 0;
    517 		delay(1);
    518 	}
    519 
    520 	return 1;
    521 }
    522 
    523 int
    524 yds_match(struct device *parent, struct cfdata *match, void *aux)
    525 {
    526 	struct pci_attach_args *pa;
    527 
    528 	pa = (struct pci_attach_args *)aux;
    529 	switch (PCI_VENDOR(pa->pa_id)) {
    530 	case PCI_VENDOR_YAMAHA:
    531 		switch (PCI_PRODUCT(pa->pa_id)) {
    532 		case PCI_PRODUCT_YAMAHA_YMF724:
    533 		case PCI_PRODUCT_YAMAHA_YMF740:
    534 		case PCI_PRODUCT_YAMAHA_YMF740C:
    535 		case PCI_PRODUCT_YAMAHA_YMF724F:
    536 		case PCI_PRODUCT_YAMAHA_YMF744B:
    537 		case PCI_PRODUCT_YAMAHA_YMF754:
    538 			return 1;
    539 		}
    540 		break;
    541 	}
    542 
    543 	return 0;
    544 }
    545 
    546 /*
    547  * This routine is called after all the ISA devices are configured,
    548  * to avoid conflict.
    549  */
    550 static void
    551 yds_configure_legacy(struct device *arg)
    552 #define FLEXIBLE	(sc->sc_flags & YDS_CAP_LEGACY_FLEXIBLE)
    553 #define SELECTABLE	(sc->sc_flags & YDS_CAP_LEGACY_SELECTABLE)
    554 {
    555 	static const bus_addr_t opl_addrs[] = {0x388, 0x398, 0x3A0, 0x3A8};
    556 	static const bus_addr_t mpu_addrs[] = {0x330, 0x300, 0x332, 0x334};
    557 	struct yds_softc *sc;
    558 	pcireg_t reg;
    559 	struct device *dev;
    560 	int i;
    561 
    562 	sc = (struct yds_softc*) arg;
    563 	if (!FLEXIBLE && !SELECTABLE)
    564 		return;
    565 
    566 	reg = pci_conf_read(sc->sc_pc, sc->sc_pcitag, YDS_PCI_LEGACY);
    567 	reg &= ~0x8133c03f;	/* these bits are out of interest */
    568 	reg |= ((YDS_PCI_EX_LEGACY_IMOD) |
    569 		(YDS_PCI_LEGACY_FMEN |
    570 		 YDS_PCI_LEGACY_MEN /*| YDS_PCI_LEGACY_MIEN*/));
    571 	reg |= YDS_PCI_EX_LEGACY_SMOD_DISABLE;
    572 	if (FLEXIBLE) {
    573 		pci_conf_write(sc->sc_pc, sc->sc_pcitag, YDS_PCI_LEGACY, reg);
    574 		delay(100*1000);
    575 	}
    576 
    577 	/* Look for OPL */
    578 	dev = 0;
    579 	for (i = 0; i < sizeof(opl_addrs) / sizeof(bus_addr_t); i++) {
    580 		if (SELECTABLE) {
    581 			pci_conf_write(sc->sc_pc, sc->sc_pcitag,
    582 				       YDS_PCI_LEGACY, reg | (i << (0+16)));
    583 			delay(100*1000);	/* wait 100ms */
    584 		} else
    585 			pci_conf_write(sc->sc_pc, sc->sc_pcitag,
    586 				       YDS_PCI_FM_BA, opl_addrs[i]);
    587 		if (bus_space_map(sc->sc_opl_iot,
    588 				  opl_addrs[i], 4, 0, &sc->sc_opl_ioh) == 0) {
    589 			struct audio_attach_args aa;
    590 
    591 			aa.type = AUDIODEV_TYPE_OPL;
    592 			aa.hwif = aa.hdl = NULL;
    593 			dev = config_found(&sc->sc_dev, &aa, audioprint);
    594 			if (dev == 0)
    595 				bus_space_unmap(sc->sc_opl_iot,
    596 						sc->sc_opl_ioh, 4);
    597 			else {
    598 				if (SELECTABLE)
    599 					reg |= (i << (0+16));
    600 				break;
    601 			}
    602 		}
    603 	}
    604 	if (dev == 0) {
    605 		reg &= ~YDS_PCI_LEGACY_FMEN;
    606 		pci_conf_write(sc->sc_pc, sc->sc_pcitag,
    607 			       YDS_PCI_LEGACY, reg);
    608 	} else {
    609 		/* Max. volume */
    610 		YWRITE4(sc, YDS_LEGACY_OUT_VOLUME, 0x3fff3fff);
    611 		YWRITE4(sc, YDS_LEGACY_REC_VOLUME, 0x3fff3fff);
    612 	}
    613 
    614 	/* Look for MPU */
    615 	dev = 0;
    616 	for (i = 0; i < sizeof(mpu_addrs) / sizeof(bus_addr_t); i++) {
    617 		if (SELECTABLE)
    618 			pci_conf_write(sc->sc_pc, sc->sc_pcitag,
    619 				       YDS_PCI_LEGACY, reg | (i << (4+16)));
    620 		else
    621 			pci_conf_write(sc->sc_pc, sc->sc_pcitag,
    622 				       YDS_PCI_MPU_BA, mpu_addrs[i]);
    623 		if (bus_space_map(sc->sc_mpu_iot,
    624 				  mpu_addrs[i], 2, 0, &sc->sc_mpu_ioh) == 0) {
    625 			struct audio_attach_args aa;
    626 
    627 			aa.type = AUDIODEV_TYPE_MPU;
    628 			aa.hwif = aa.hdl = NULL;
    629 			dev = config_found(&sc->sc_dev, &aa, audioprint);
    630 			if (dev == 0)
    631 				bus_space_unmap(sc->sc_mpu_iot,
    632 						sc->sc_mpu_ioh, 2);
    633 			else {
    634 				if (SELECTABLE)
    635 					reg |= (i << (4+16));
    636 				break;
    637 			}
    638 		}
    639 	}
    640 	if (dev == 0) {
    641 		reg &= ~(YDS_PCI_LEGACY_MEN | YDS_PCI_LEGACY_MIEN);
    642 		pci_conf_write(sc->sc_pc, sc->sc_pcitag, YDS_PCI_LEGACY, reg);
    643 	}
    644 	sc->sc_mpu = dev;
    645 }
    646 #undef FLEXIBLE
    647 #undef SELECTABLE
    648 
    649 static int
    650 yds_init(struct yds_softc *sc)
    651 {
    652 	uint32_t reg;
    653 
    654 	DPRINTF(("yds_init()\n"));
    655 
    656 	/* Download microcode */
    657 	if (yds_download_mcode(sc)) {
    658 		printf("%s: download microcode failed\n", sc->sc_dev.dv_xname);
    659 		return 1;
    660 	}
    661 
    662 	/* Allocate DMA buffers */
    663 	if (yds_allocate_slots(sc)) {
    664 		printf("%s: could not allocate slots\n", sc->sc_dev.dv_xname);
    665 		return 1;
    666 	}
    667 
    668 	/* Warm reset */
    669 	reg = pci_conf_read(sc->sc_pc, sc->sc_pcitag, YDS_PCI_DSCTRL);
    670 	pci_conf_write(sc->sc_pc, sc->sc_pcitag, YDS_PCI_DSCTRL,
    671 		reg | YDS_DSCTRL_WRST);
    672 	delay(50000);
    673 
    674 	return 0;
    675 }
    676 
    677 static void
    678 yds_powerhook(int why, void *addr)
    679 {
    680 	struct yds_softc *sc;
    681 
    682 	if (why == PWR_RESUME) {
    683 		sc = addr;
    684 		if (yds_init(sc)) {
    685 			printf("%s: reinitialize failed\n",
    686 				sc->sc_dev.dv_xname);
    687 			return;
    688 		}
    689 		sc->sc_codec[0].codec_if->vtbl->restore_ports(sc->sc_codec[0].codec_if);
    690 	}
    691 }
    692 
    693 void
    694 yds_attach(struct device *parent, struct device *self, void *aux)
    695 {
    696 	struct yds_softc *sc;
    697 	struct pci_attach_args *pa;
    698 	pci_chipset_tag_t pc;
    699 	char const *intrstr;
    700 	pci_intr_handle_t ih;
    701 	pcireg_t reg;
    702 	struct yds_codec_softc *codec;
    703 	char devinfo[256];
    704 	int i, r, to;
    705 	int revision;
    706 	int ac97_id2;
    707 
    708 	sc = (struct yds_softc *)self;
    709 	pa = (struct pci_attach_args *)aux;
    710 	pc = pa->pa_pc;
    711 	pci_devinfo(pa->pa_id, pa->pa_class, 0, devinfo, sizeof(devinfo));
    712 	revision = PCI_REVISION(pa->pa_class);
    713 	printf(": %s (rev. 0x%02x)\n", devinfo, revision);
    714 
    715 	/* Map register to memory */
    716 	if (pci_mapreg_map(pa, YDS_PCI_MBA, PCI_MAPREG_TYPE_MEM, 0,
    717 			   &sc->memt, &sc->memh, NULL, NULL)) {
    718 		printf("%s: can't map memory space\n", sc->sc_dev.dv_xname);
    719 		return;
    720 	}
    721 
    722 	/* Map and establish the interrupt. */
    723 	if (pci_intr_map(pa, &ih)) {
    724 		printf("%s: couldn't map interrupt\n", sc->sc_dev.dv_xname);
    725 		return;
    726 	}
    727 	intrstr = pci_intr_string(pc, ih);
    728 	sc->sc_ih = pci_intr_establish(pc, ih, IPL_AUDIO, yds_intr, sc);
    729 	if (sc->sc_ih == NULL) {
    730 		printf("%s: couldn't establish interrupt", sc->sc_dev.dv_xname);
    731 		if (intrstr != NULL)
    732 			printf(" at %s", intrstr);
    733 		printf("\n");
    734 		return;
    735 	}
    736 	printf("%s: interrupting at %s\n", sc->sc_dev.dv_xname, intrstr);
    737 
    738 	sc->sc_dmatag = pa->pa_dmat;
    739 	sc->sc_pc = pc;
    740 	sc->sc_pcitag = pa->pa_tag;
    741 	sc->sc_id = pa->pa_id;
    742 	sc->sc_revision = revision;
    743 	sc->sc_flags = yds_get_dstype(sc->sc_id);
    744 #ifdef AUDIO_DEBUG
    745 	if (ydsdebug) {
    746 		char bits[80];
    747 
    748 		printf("%s: chip has %s\n", sc->sc_dev.dv_xname,
    749 		       bitmask_snprintf(sc->sc_flags, YDS_CAP_BITS, bits,
    750 					sizeof(bits)));
    751 	}
    752 #endif
    753 
    754 	/* Disable legacy mode */
    755 	reg = pci_conf_read(pc, pa->pa_tag, YDS_PCI_LEGACY);
    756 	pci_conf_write(pc, pa->pa_tag, YDS_PCI_LEGACY,
    757 		       reg & YDS_PCI_LEGACY_LAD);
    758 
    759 	/* Enable the device. */
    760 	reg = pci_conf_read(pc, pa->pa_tag, PCI_COMMAND_STATUS_REG);
    761 	reg |= (PCI_COMMAND_IO_ENABLE | PCI_COMMAND_MEM_ENABLE |
    762 		PCI_COMMAND_MASTER_ENABLE);
    763 	pci_conf_write(pc, pa->pa_tag, PCI_COMMAND_STATUS_REG, reg);
    764 	reg = pci_conf_read(pc, pa->pa_tag, PCI_COMMAND_STATUS_REG);
    765 
    766 	/* Mute all volumes */
    767 	for (i = 0x80; i < 0xc0; i += 2)
    768 		YWRITE2(sc, i, 0);
    769 
    770 	/* Initialize the device */
    771 	if (yds_init(sc)) {
    772 		printf("%s: initialize failed\n", sc->sc_dev.dv_xname);
    773 		return;
    774 	}
    775 
    776 	/*
    777 	 * Detect primary/secondary AC97
    778 	 *	YMF754 Hardware Specification Rev 1.01 page 24
    779 	 */
    780 	reg = pci_conf_read(pc, pa->pa_tag, YDS_PCI_DSCTRL);
    781 	pci_conf_write(pc, pa->pa_tag, YDS_PCI_DSCTRL, reg & ~YDS_DSCTRL_CRST);
    782 	delay(400000);		/* Needed for 740C. */
    783 
    784 	/* Primary */
    785 	for (to = 0; to < AC97_TIMEOUT; to++) {
    786 		if ((YREAD2(sc, AC97_STAT_ADDR1) & AC97_BUSY) == 0)
    787 			break;
    788 		delay(1);
    789 	}
    790 	if (to == AC97_TIMEOUT) {
    791 		printf("%s: no AC97 available\n", sc->sc_dev.dv_xname);
    792 		return;
    793 	}
    794 
    795 	/* Secondary */
    796 	/* Secondary AC97 is used for 4ch audio. Currently unused. */
    797 	ac97_id2 = -1;
    798 	if ((YREAD2(sc, YDS_ACTIVITY) & YDS_ACTIVITY_DOCKA) == 0)
    799 		goto detected;
    800 #if 0				/* reset secondary... */
    801 	YWRITE2(sc, YDS_GPIO_OCTRL,
    802 		YREAD2(sc, YDS_GPIO_OCTRL) & ~YDS_GPIO_GPO2);
    803 	YWRITE2(sc, YDS_GPIO_FUNCE,
    804 		(YREAD2(sc, YDS_GPIO_FUNCE)&(~YDS_GPIO_GPC2))|YDS_GPIO_GPE2);
    805 #endif
    806 	for (to = 0; to < AC97_TIMEOUT; to++) {
    807 		if ((YREAD2(sc, AC97_STAT_ADDR2) & AC97_BUSY) == 0)
    808 			break;
    809 		delay(1);
    810 	}
    811 	if (to < AC97_TIMEOUT) {
    812 		/* detect id */
    813 		for (ac97_id2 = 1; ac97_id2 < 4; ac97_id2++) {
    814 			YWRITE2(sc, AC97_CMD_ADDR,
    815 				AC97_CMD_READ | AC97_ID(ac97_id2) | 0x28);
    816 
    817 			for (to = 0; to < AC97_TIMEOUT; to++) {
    818 				if ((YREAD2(sc, AC97_STAT_ADDR2) & AC97_BUSY)
    819 				    == 0)
    820 					goto detected;
    821 				delay(1);
    822 			}
    823 		}
    824 		if (ac97_id2 == 4)
    825 			ac97_id2 = -1;
    826 detected:
    827 		;
    828 	}
    829 
    830 	pci_conf_write(pc, pa->pa_tag, YDS_PCI_DSCTRL, reg | YDS_DSCTRL_CRST);
    831 	delay (20);
    832 	pci_conf_write(pc, pa->pa_tag, YDS_PCI_DSCTRL, reg & ~YDS_DSCTRL_CRST);
    833 	delay (400000);
    834 	for (to = 0; to < AC97_TIMEOUT; to++) {
    835 		if ((YREAD2(sc, AC97_STAT_ADDR1) & AC97_BUSY) == 0)
    836 			break;
    837 		delay(1);
    838 	}
    839 
    840 	/*
    841 	 * Attach ac97 codec
    842 	 */
    843 	for (i = 0; i < 2; i++) {
    844 		static struct {
    845 			int data;
    846 			int addr;
    847 		} statregs[] = {
    848 			{AC97_STAT_DATA1, AC97_STAT_ADDR1},
    849 			{AC97_STAT_DATA2, AC97_STAT_ADDR2},
    850 		};
    851 
    852 		if (i == 1 && ac97_id2 == -1)
    853 			break;		/* secondary ac97 not available */
    854 
    855 		codec = &sc->sc_codec[i];
    856 		memcpy(&codec->sc_dev, &sc->sc_dev, sizeof(codec->sc_dev));
    857 		codec->sc = sc;
    858 		codec->id = i == 1 ? ac97_id2 : 0;
    859 		codec->status_data = statregs[i].data;
    860 		codec->status_addr = statregs[i].addr;
    861 		codec->host_if.arg = codec;
    862 		codec->host_if.attach = yds_attach_codec;
    863 		codec->host_if.read = yds_read_codec;
    864 		codec->host_if.write = yds_write_codec;
    865 		codec->host_if.reset = yds_reset_codec;
    866 
    867 		if ((r = ac97_attach(&codec->host_if, self)) != 0) {
    868 			printf("%s: can't attach codec (error 0x%X)\n",
    869 			       sc->sc_dev.dv_xname, r);
    870 			return;
    871 		}
    872 	}
    873 
    874 	if (0 != auconv_create_encodings(yds_formats, YDS_NFORMATS,
    875 					 &sc->sc_encodings))
    876 		return;
    877 
    878 	audio_attach_mi(&yds_hw_if, sc, &sc->sc_dev);
    879 
    880 	sc->sc_legacy_iot = pa->pa_iot;
    881 	config_defer((struct device*) sc, yds_configure_legacy);
    882 
    883 	powerhook_establish(yds_powerhook, sc);
    884 }
    885 
    886 int
    887 yds_attach_codec(void *sc_, struct ac97_codec_if *codec_if)
    888 {
    889 	struct yds_codec_softc *sc;
    890 
    891 	sc = sc_;
    892 	sc->codec_if = codec_if;
    893 	return 0;
    894 }
    895 
    896 static int
    897 yds_ready_codec(struct yds_codec_softc *sc)
    898 {
    899 	int to;
    900 
    901 	for (to = 0; to < AC97_TIMEOUT; to++) {
    902 		if ((YREAD2(sc->sc, sc->status_addr) & AC97_BUSY) == 0)
    903 			return 0;
    904 		delay(1);
    905 	}
    906 
    907 	return 1;
    908 }
    909 
    910 int
    911 yds_read_codec(void *sc_, uint8_t reg, uint16_t *data)
    912 {
    913 	struct yds_codec_softc *sc;
    914 
    915 	sc = sc_;
    916 	YWRITE2(sc->sc, AC97_CMD_ADDR, AC97_CMD_READ | AC97_ID(sc->id) | reg);
    917 
    918 	if (yds_ready_codec(sc)) {
    919 		printf("%s: yds_read_codec timeout\n",
    920 		       sc->sc->sc_dev.dv_xname);
    921 		return EIO;
    922 	}
    923 
    924 	if (PCI_PRODUCT(sc->sc->sc_id) == PCI_PRODUCT_YAMAHA_YMF744B &&
    925 	    sc->sc->sc_revision < 2) {
    926 		int i;
    927 		for (i=0; i<600; i++)
    928 			YREAD2(sc->sc, sc->status_data);
    929 	}
    930 
    931 	*data = YREAD2(sc->sc, sc->status_data);
    932 
    933 	return 0;
    934 }
    935 
    936 int
    937 yds_write_codec(void *sc_, uint8_t reg, uint16_t data)
    938 {
    939 	struct yds_codec_softc *sc;
    940 
    941 	sc = sc_;
    942 	YWRITE2(sc->sc, AC97_CMD_ADDR, AC97_CMD_WRITE | AC97_ID(sc->id) | reg);
    943 	YWRITE2(sc->sc, AC97_CMD_DATA, data);
    944 
    945 	if (yds_ready_codec(sc)) {
    946 		printf("%s: yds_write_codec timeout\n",
    947 			sc->sc->sc_dev.dv_xname);
    948 		return EIO;
    949 	}
    950 
    951 	return 0;
    952 }
    953 
    954 /*
    955  * XXX: Must handle the secondary differntly!!
    956  */
    957 int
    958 yds_reset_codec(void *sc_)
    959 {
    960 	struct yds_codec_softc *codec;
    961 	struct yds_softc *sc;
    962 	pcireg_t reg;
    963 
    964 	codec = sc_;
    965 	sc = codec->sc;
    966 	/* reset AC97 codec */
    967 	reg = pci_conf_read(sc->sc_pc, sc->sc_pcitag, YDS_PCI_DSCTRL);
    968 	if (reg & 0x03) {
    969 		pci_conf_write(sc->sc_pc, sc->sc_pcitag,
    970 			       YDS_PCI_DSCTRL, reg & ~0x03);
    971 		pci_conf_write(sc->sc_pc, sc->sc_pcitag,
    972 			       YDS_PCI_DSCTRL, reg | 0x03);
    973 		pci_conf_write(sc->sc_pc, sc->sc_pcitag,
    974 			       YDS_PCI_DSCTRL, reg & ~0x03);
    975 		delay(50000);
    976 	}
    977 
    978 	yds_ready_codec(sc_);
    979 	return 0;
    980 }
    981 
    982 int
    983 yds_intr(void *p)
    984 {
    985 	struct yds_softc *sc;
    986 	u_int status;
    987 
    988 	sc = p;
    989 	status = YREAD4(sc, YDS_STATUS);
    990 	DPRINTFN(1, ("yds_intr: status=%08x\n", status));
    991 	if ((status & (YDS_STAT_INT|YDS_STAT_TINT)) == 0) {
    992 #if NMPU > 0
    993 		if (sc->sc_mpu)
    994 			return mpu_intr(sc->sc_mpu);
    995 #endif
    996 		return 0;
    997 	}
    998 
    999 	if (status & YDS_STAT_TINT) {
   1000 		YWRITE4(sc, YDS_STATUS, YDS_STAT_TINT);
   1001 		printf ("yds_intr: timeout!\n");
   1002 	}
   1003 
   1004 	if (status & YDS_STAT_INT) {
   1005 		int nbank;
   1006 
   1007 		nbank = (YREAD4(sc, YDS_CONTROL_SELECT) == 0);
   1008 		/* Clear interrupt flag */
   1009 		YWRITE4(sc, YDS_STATUS, YDS_STAT_INT);
   1010 
   1011 		/* Buffer for the next frame is always ready. */
   1012 		YWRITE4(sc, YDS_MODE, YREAD4(sc, YDS_MODE) | YDS_MODE_ACTV2);
   1013 
   1014 		if (sc->sc_play.intr) {
   1015 			u_int dma, ccpu, blk, len;
   1016 
   1017 			/* Sync play slot control data */
   1018 			bus_dmamap_sync(sc->sc_dmatag, sc->sc_ctrldata.map,
   1019 					sc->pbankoff,
   1020 					sizeof(struct play_slot_ctrl_bank)*
   1021 					    le32toh(*sc->ptbl)*
   1022 					    N_PLAY_SLOT_CTRL_BANK,
   1023 					BUS_DMASYNC_POSTWRITE|
   1024 					BUS_DMASYNC_POSTREAD);
   1025 			dma = le32toh(sc->pbankp[nbank]->pgstart) * sc->sc_play.factor;
   1026 			ccpu = sc->sc_play.offset;
   1027 			blk = sc->sc_play.blksize;
   1028 			len = sc->sc_play.length;
   1029 
   1030 			if (((dma > ccpu) && (dma - ccpu > blk * 2)) ||
   1031 			    ((ccpu > dma) && (dma + len - ccpu > blk * 2))) {
   1032 				/* We can fill the next block */
   1033 				/* Sync ring buffer for previous write */
   1034 				bus_dmamap_sync(sc->sc_dmatag,
   1035 						sc->sc_play.dma->map,
   1036 						ccpu, blk,
   1037 						BUS_DMASYNC_POSTWRITE);
   1038 				sc->sc_play.intr(sc->sc_play.intr_arg);
   1039 				sc->sc_play.offset += blk;
   1040 				if (sc->sc_play.offset >= len) {
   1041 					sc->sc_play.offset -= len;
   1042 #ifdef DIAGNOSTIC
   1043 					if (sc->sc_play.offset != 0)
   1044 						printf ("Audio ringbuffer botch\n");
   1045 #endif
   1046 				}
   1047 				/* Sync ring buffer for next write */
   1048 				bus_dmamap_sync(sc->sc_dmatag,
   1049 						sc->sc_play.dma->map,
   1050 						ccpu, blk,
   1051 						BUS_DMASYNC_PREWRITE);
   1052 			}
   1053 		}
   1054 		if (sc->sc_rec.intr) {
   1055 			u_int dma, ccpu, blk, len;
   1056 
   1057 			/* Sync rec slot control data */
   1058 			bus_dmamap_sync(sc->sc_dmatag, sc->sc_ctrldata.map,
   1059 					sc->rbankoff,
   1060 					sizeof(struct rec_slot_ctrl_bank)*
   1061 					    N_REC_SLOT_CTRL*
   1062 					    N_REC_SLOT_CTRL_BANK,
   1063 					BUS_DMASYNC_POSTWRITE|
   1064 					BUS_DMASYNC_POSTREAD);
   1065 			dma = le32toh(sc->rbank[YDS_INPUT_SLOT*2 + nbank].pgstartadr);
   1066 			ccpu = sc->sc_rec.offset;
   1067 			blk = sc->sc_rec.blksize;
   1068 			len = sc->sc_rec.length;
   1069 
   1070 			if (((dma > ccpu) && (dma - ccpu > blk * 2)) ||
   1071 			    ((ccpu > dma) && (dma + len - ccpu > blk * 2))) {
   1072 				/* We can drain the current block */
   1073 				/* Sync ring buffer first */
   1074 				bus_dmamap_sync(sc->sc_dmatag,
   1075 						sc->sc_rec.dma->map,
   1076 						ccpu, blk,
   1077 						BUS_DMASYNC_POSTREAD);
   1078 				sc->sc_rec.intr(sc->sc_rec.intr_arg);
   1079 				sc->sc_rec.offset += blk;
   1080 				if (sc->sc_rec.offset >= len) {
   1081 					sc->sc_rec.offset -= len;
   1082 #ifdef DIAGNOSTIC
   1083 					if (sc->sc_rec.offset != 0)
   1084 						printf ("Audio ringbuffer botch\n");
   1085 #endif
   1086 				}
   1087 				/* Sync ring buffer for next read */
   1088 				bus_dmamap_sync(sc->sc_dmatag,
   1089 						sc->sc_rec.dma->map,
   1090 						ccpu, blk,
   1091 						BUS_DMASYNC_PREREAD);
   1092 			}
   1093 		}
   1094 	}
   1095 
   1096 	return 1;
   1097 }
   1098 
   1099 int
   1100 yds_allocmem(struct yds_softc *sc, size_t size, size_t align, struct yds_dma *p)
   1101 {
   1102 	int error;
   1103 
   1104 	p->size = size;
   1105 	error = bus_dmamem_alloc(sc->sc_dmatag, p->size, align, 0,
   1106 				 p->segs, sizeof(p->segs)/sizeof(p->segs[0]),
   1107 				 &p->nsegs, BUS_DMA_NOWAIT);
   1108 	if (error)
   1109 		return error;
   1110 
   1111 	error = bus_dmamem_map(sc->sc_dmatag, p->segs, p->nsegs, p->size,
   1112 			       &p->addr, BUS_DMA_NOWAIT|BUS_DMA_COHERENT);
   1113 	if (error)
   1114 		goto free;
   1115 
   1116 	error = bus_dmamap_create(sc->sc_dmatag, p->size, 1, p->size,
   1117 				  0, BUS_DMA_NOWAIT, &p->map);
   1118 	if (error)
   1119 		goto unmap;
   1120 
   1121 	error = bus_dmamap_load(sc->sc_dmatag, p->map, p->addr, p->size, NULL,
   1122 				BUS_DMA_NOWAIT);
   1123 	if (error)
   1124 		goto destroy;
   1125 	return 0;
   1126 
   1127 destroy:
   1128 	bus_dmamap_destroy(sc->sc_dmatag, p->map);
   1129 unmap:
   1130 	bus_dmamem_unmap(sc->sc_dmatag, p->addr, p->size);
   1131 free:
   1132 	bus_dmamem_free(sc->sc_dmatag, p->segs, p->nsegs);
   1133 	return error;
   1134 }
   1135 
   1136 int
   1137 yds_freemem(struct yds_softc *sc, struct yds_dma *p)
   1138 {
   1139 
   1140 	bus_dmamap_unload(sc->sc_dmatag, p->map);
   1141 	bus_dmamap_destroy(sc->sc_dmatag, p->map);
   1142 	bus_dmamem_unmap(sc->sc_dmatag, p->addr, p->size);
   1143 	bus_dmamem_free(sc->sc_dmatag, p->segs, p->nsegs);
   1144 	return 0;
   1145 }
   1146 
   1147 int
   1148 yds_open(void *addr, int flags)
   1149 {
   1150 	struct yds_softc *sc;
   1151 	uint32_t mode;
   1152 
   1153 	sc = addr;
   1154 	/* Select bank 0. */
   1155 	YWRITE4(sc, YDS_CONTROL_SELECT, 0);
   1156 
   1157 	/* Start the DSP operation. */
   1158 	mode = YREAD4(sc, YDS_MODE);
   1159 	mode |= YDS_MODE_ACTV;
   1160 	mode &= ~YDS_MODE_ACTV2;
   1161 	YWRITE4(sc, YDS_MODE, mode);
   1162 
   1163 	return 0;
   1164 }
   1165 
   1166 /*
   1167  * Close function is called at splaudio().
   1168  */
   1169 void
   1170 yds_close(void *addr)
   1171 {
   1172 
   1173 	yds_halt(addr);
   1174 }
   1175 
   1176 int
   1177 yds_query_encoding(void *addr, struct audio_encoding *fp)
   1178 {
   1179 	struct yds_softc *sc;
   1180 
   1181 	sc = addr;
   1182 	return auconv_query_encoding(sc->sc_encodings, fp);
   1183 }
   1184 
   1185 int
   1186 yds_set_params(void *addr, int setmode, int usemode,
   1187 	       audio_params_t *play, audio_params_t* rec,
   1188 	       stream_filter_list_t *pfil, stream_filter_list_t *rfil)
   1189 {
   1190 	if (setmode & AUMODE_RECORD) {
   1191 		if (auconv_set_converter(yds_formats, YDS_NFORMATS,
   1192 					 AUMODE_RECORD, rec, FALSE, rfil) < 0)
   1193 			return EINVAL;
   1194 	}
   1195 	if (setmode & AUMODE_PLAY) {
   1196 		if (auconv_set_converter(yds_formats, YDS_NFORMATS,
   1197 					 AUMODE_PLAY, play, FALSE, pfil) < 0)
   1198 			return EINVAL;
   1199 	}
   1200 	return 0;
   1201 }
   1202 
   1203 int
   1204 yds_round_blocksize(void *addr, int blk, int mode, const audio_params_t *param)
   1205 {
   1206 
   1207 	/*
   1208 	 * Block size must be bigger than a frame.
   1209 	 * That is 1024bytes at most, i.e. for 48000Hz, 16bit, 2ch.
   1210 	 */
   1211 	if (blk < 1024)
   1212 		blk = 1024;
   1213 
   1214 	return blk & ~4;
   1215 }
   1216 
   1217 static uint32_t
   1218 yds_get_lpfq(u_int sample_rate)
   1219 {
   1220 	int i;
   1221 	static struct lpfqt {
   1222 		u_int rate;
   1223 		uint32_t lpfq;
   1224 	} lpfqt[] = {
   1225 		{8000,  0x32020000},
   1226 		{11025, 0x31770000},
   1227 		{16000, 0x31390000},
   1228 		{22050, 0x31c90000},
   1229 		{32000, 0x33d00000},
   1230 		{48000, 0x40000000},
   1231 		{0, 0}
   1232 	};
   1233 
   1234 	if (sample_rate == 44100)		/* for P44 slot? */
   1235 		return 0x370A0000;
   1236 
   1237 	for (i = 0; lpfqt[i].rate != 0; i++)
   1238 		if (sample_rate <= lpfqt[i].rate)
   1239 			break;
   1240 
   1241 	return lpfqt[i].lpfq;
   1242 }
   1243 
   1244 static uint32_t
   1245 yds_get_lpfk(u_int sample_rate)
   1246 {
   1247 	int i;
   1248 	static struct lpfkt {
   1249 		u_int rate;
   1250 		uint32_t lpfk;
   1251 	} lpfkt[] = {
   1252 		{8000,  0x18b20000},
   1253 		{11025, 0x20930000},
   1254 		{16000, 0x2b9a0000},
   1255 		{22050, 0x35a10000},
   1256 		{32000, 0x3eaa0000},
   1257 		{48000, 0x40000000},
   1258 		{0, 0}
   1259 	};
   1260 
   1261 	if (sample_rate == 44100)		/* for P44 slot? */
   1262 		return 0x46460000;
   1263 
   1264 	for (i = 0; lpfkt[i].rate != 0; i++)
   1265 		if (sample_rate <= lpfkt[i].rate)
   1266 			break;
   1267 
   1268 	return lpfkt[i].lpfk;
   1269 }
   1270 
   1271 int
   1272 yds_trigger_output(void *addr, void *start, void *end, int blksize,
   1273 		   void (*intr)(void *), void *arg, const audio_params_t *param)
   1274 #define P44		(sc->sc_flags & YDS_CAP_HAS_P44)
   1275 {
   1276 	struct yds_softc *sc;
   1277 	struct yds_dma *p;
   1278 	struct play_slot_ctrl_bank *psb;
   1279 	const u_int gain = 0x40000000;
   1280 	bus_addr_t s;
   1281 	size_t l;
   1282 	int i;
   1283 	int p44, channels;
   1284 	uint32_t format;
   1285 
   1286 	sc = addr;
   1287 #ifdef DIAGNOSTIC
   1288 	if (sc->sc_play.intr)
   1289 		panic("yds_trigger_output: already running");
   1290 #endif
   1291 
   1292 	sc->sc_play.intr = intr;
   1293 	sc->sc_play.intr_arg = arg;
   1294 	sc->sc_play.offset = 0;
   1295 	sc->sc_play.blksize = blksize;
   1296 
   1297 	DPRINTFN(1, ("yds_trigger_output: sc=%p start=%p end=%p "
   1298 	    "blksize=%d intr=%p(%p)\n", addr, start, end, blksize, intr, arg));
   1299 
   1300 	p = yds_find_dma(sc, start);
   1301 	if (!p) {
   1302 		printf("yds_trigger_output: bad addr %p\n", start);
   1303 		return EINVAL;
   1304 	}
   1305 	sc->sc_play.dma = p;
   1306 
   1307 #ifdef YDS_USE_P44
   1308 	/* The document says the P44 SRC supports only stereo, 16bit PCM. */
   1309 	if (P44)
   1310 		p44 = ((param->sample_rate == 44100) &&
   1311 		       (param->channels == 2) &&
   1312 		       (param->precision == 16));
   1313 	else
   1314 #endif
   1315 		p44 = 0;
   1316 	channels = p44 ? 1 : param->channels;
   1317 
   1318 	s = DMAADDR(p);
   1319 	l = ((char *)end - (char *)start);
   1320 	sc->sc_play.length = l;
   1321 
   1322 	*sc->ptbl = htole32(channels);	/* Num of play */
   1323 
   1324 	sc->sc_play.factor = 1;
   1325 	if (param->channels == 2)
   1326 		sc->sc_play.factor *= 2;
   1327 	if (param->precision != 8)
   1328 		sc->sc_play.factor *= 2;
   1329 	l /= sc->sc_play.factor;
   1330 
   1331 	format = ((channels == 2 ? PSLT_FORMAT_STEREO : 0) |
   1332 		  (param->precision == 8 ? PSLT_FORMAT_8BIT : 0) |
   1333 		  (p44 ? PSLT_FORMAT_SRC441 : 0));
   1334 
   1335 	psb = sc->pbankp[0];
   1336 	memset(psb, 0, sizeof(*psb));
   1337 	psb->format = htole32(format);
   1338 	psb->pgbase = htole32(s);
   1339 	psb->pgloopend = htole32(l);
   1340 	if (!p44) {
   1341 		psb->pgdeltaend = htole32((param->sample_rate * 65536 / 48000) << 12);
   1342 		psb->lpfkend = htole32(yds_get_lpfk(param->sample_rate));
   1343 		psb->eggainend = htole32(gain);
   1344 		psb->lpfq = htole32(yds_get_lpfq(param->sample_rate));
   1345 		psb->pgdelta = htole32(psb->pgdeltaend);
   1346 		psb->lpfk = htole32(yds_get_lpfk(param->sample_rate));
   1347 		psb->eggain = htole32(gain);
   1348 	}
   1349 
   1350 	for (i = 0; i < channels; i++) {
   1351 		/* i == 0: left or mono, i == 1: right */
   1352 		psb = sc->pbankp[i*2];
   1353 		if (i)
   1354 			/* copy from left */
   1355 			*psb = *(sc->pbankp[0]);
   1356 		if (channels == 2) {
   1357 			/* stereo */
   1358 			if (i == 0) {
   1359 				psb->lchgain = psb->lchgainend = htole32(gain);
   1360 			} else {
   1361 				psb->lchgain = psb->lchgainend = 0;
   1362 				psb->rchgain = psb->rchgainend = htole32(gain);
   1363 				psb->format |= htole32(PSLT_FORMAT_RCH);
   1364 			}
   1365 		} else if (!p44) {
   1366 			/* mono */
   1367 			psb->lchgain = psb->rchgain = htole32(gain);
   1368 			psb->lchgainend = psb->rchgainend = htole32(gain);
   1369 		}
   1370 		/* copy to the other bank */
   1371 		*(sc->pbankp[i*2+1]) = *psb;
   1372 	}
   1373 
   1374 	YDS_DUMP_PLAY_SLOT(5, sc, 0);
   1375 	YDS_DUMP_PLAY_SLOT(5, sc, 1);
   1376 
   1377 	if (p44)
   1378 		YWRITE4(sc, YDS_P44_OUT_VOLUME, 0x3fff3fff);
   1379 	else
   1380 		YWRITE4(sc, YDS_DAC_OUT_VOLUME, 0x3fff3fff);
   1381 
   1382 	/* Now the play slot for the next frame is set up!! */
   1383 	/* Sync play slot control data for both directions */
   1384 	bus_dmamap_sync(sc->sc_dmatag, sc->sc_ctrldata.map,
   1385 			sc->ptbloff,
   1386 			sizeof(struct play_slot_ctrl_bank) *
   1387 			    channels * N_PLAY_SLOT_CTRL_BANK,
   1388 			BUS_DMASYNC_PREWRITE|BUS_DMASYNC_PREREAD);
   1389 	/* Sync ring buffer */
   1390 	bus_dmamap_sync(sc->sc_dmatag, p->map, 0, blksize,
   1391 			BUS_DMASYNC_PREWRITE);
   1392 	/* HERE WE GO!! */
   1393 	YWRITE4(sc, YDS_MODE,
   1394 		YREAD4(sc, YDS_MODE) | YDS_MODE_ACTV | YDS_MODE_ACTV2);
   1395 
   1396 	return 0;
   1397 }
   1398 #undef P44
   1399 
   1400 int
   1401 yds_trigger_input(void *addr, void *start, void *end, int blksize,
   1402 		  void (*intr)(void *), void *arg, const audio_params_t *param)
   1403 {
   1404 	struct yds_softc *sc;
   1405 	struct yds_dma *p;
   1406 	u_int srate, format;
   1407 	struct rec_slot_ctrl_bank *rsb;
   1408 	bus_addr_t s;
   1409 	size_t l;
   1410 
   1411 	sc = addr;
   1412 #ifdef DIAGNOSTIC
   1413 	if (sc->sc_rec.intr)
   1414 		panic("yds_trigger_input: already running");
   1415 #endif
   1416 	sc->sc_rec.intr = intr;
   1417 	sc->sc_rec.intr_arg = arg;
   1418 	sc->sc_rec.offset = 0;
   1419 	sc->sc_rec.blksize = blksize;
   1420 
   1421 	DPRINTFN(1, ("yds_trigger_input: "
   1422 	    "sc=%p start=%p end=%p blksize=%d intr=%p(%p)\n",
   1423 	    addr, start, end, blksize, intr, arg));
   1424 	DPRINTFN(1, (" parameters: rate=%u, precision=%u, channels=%u\n",
   1425 	    param->sample_rate, param->precision, param->channels));
   1426 
   1427 	p = yds_find_dma(sc, start);
   1428 	if (!p) {
   1429 		printf("yds_trigger_input: bad addr %p\n", start);
   1430 		return EINVAL;
   1431 	}
   1432 	sc->sc_rec.dma = p;
   1433 
   1434 	s = DMAADDR(p);
   1435 	l = ((char *)end - (char *)start);
   1436 	sc->sc_rec.length = l;
   1437 
   1438 	sc->sc_rec.factor = 1;
   1439 	if (param->channels == 2)
   1440 		sc->sc_rec.factor *= 2;
   1441 	if (param->precision != 8)
   1442 		sc->sc_rec.factor *= 2;
   1443 
   1444 	rsb = &sc->rbank[0];
   1445 	memset(rsb, 0, sizeof(*rsb));
   1446 	rsb->pgbase = htole32(s);
   1447 	rsb->pgloopendadr = htole32(l);
   1448 	/* Seems all 4 banks must be set up... */
   1449 	sc->rbank[1] = *rsb;
   1450 	sc->rbank[2] = *rsb;
   1451 	sc->rbank[3] = *rsb;
   1452 
   1453 	YWRITE4(sc, YDS_ADC_IN_VOLUME, 0x3fff3fff);
   1454 	YWRITE4(sc, YDS_REC_IN_VOLUME, 0x3fff3fff);
   1455 	srate = 48000 * 4096 / param->sample_rate - 1;
   1456 	format = ((param->precision == 8 ? YDS_FORMAT_8BIT : 0) |
   1457 		  (param->channels == 2 ? YDS_FORMAT_STEREO : 0));
   1458 	DPRINTF(("srate=%d, format=%08x\n", srate, format));
   1459 #ifdef YDS_USE_REC_SLOT
   1460 	YWRITE4(sc, YDS_DAC_REC_VOLUME, 0x3fff3fff);
   1461 	YWRITE4(sc, YDS_P44_REC_VOLUME, 0x3fff3fff);
   1462 	YWRITE4(sc, YDS_MAPOF_REC, YDS_RECSLOT_VALID);
   1463 	YWRITE4(sc, YDS_REC_SAMPLE_RATE, srate);
   1464 	YWRITE4(sc, YDS_REC_FORMAT, format);
   1465 #else
   1466 	YWRITE4(sc, YDS_MAPOF_REC, YDS_ADCSLOT_VALID);
   1467 	YWRITE4(sc, YDS_ADC_SAMPLE_RATE, srate);
   1468 	YWRITE4(sc, YDS_ADC_FORMAT, format);
   1469 #endif
   1470 	/* Now the rec slot for the next frame is set up!! */
   1471 	/* Sync record slot control data */
   1472 	bus_dmamap_sync(sc->sc_dmatag, sc->sc_ctrldata.map,
   1473 			sc->rbankoff,
   1474 			sizeof(struct rec_slot_ctrl_bank)*
   1475 			    N_REC_SLOT_CTRL*
   1476 			    N_REC_SLOT_CTRL_BANK,
   1477 			BUS_DMASYNC_PREWRITE|BUS_DMASYNC_PREREAD);
   1478 	/* Sync ring buffer */
   1479 	bus_dmamap_sync(sc->sc_dmatag, p->map, 0, blksize,
   1480 			BUS_DMASYNC_PREREAD);
   1481 	/* HERE WE GO!! */
   1482 	YWRITE4(sc, YDS_MODE,
   1483 		YREAD4(sc, YDS_MODE) | YDS_MODE_ACTV | YDS_MODE_ACTV2);
   1484 
   1485 	return 0;
   1486 }
   1487 
   1488 static int
   1489 yds_halt(struct yds_softc *sc)
   1490 {
   1491 	uint32_t mode;
   1492 
   1493 	/* Stop the DSP operation. */
   1494 	mode = YREAD4(sc, YDS_MODE);
   1495 	YWRITE4(sc, YDS_MODE, mode & ~(YDS_MODE_ACTV|YDS_MODE_ACTV2));
   1496 
   1497 	/* Paranoia...  mute all */
   1498 	YWRITE4(sc, YDS_P44_OUT_VOLUME, 0);
   1499 	YWRITE4(sc, YDS_DAC_OUT_VOLUME, 0);
   1500 	YWRITE4(sc, YDS_ADC_IN_VOLUME, 0);
   1501 	YWRITE4(sc, YDS_REC_IN_VOLUME, 0);
   1502 	YWRITE4(sc, YDS_DAC_REC_VOLUME, 0);
   1503 	YWRITE4(sc, YDS_P44_REC_VOLUME, 0);
   1504 
   1505 	return 0;
   1506 }
   1507 
   1508 int
   1509 yds_halt_output(void *addr)
   1510 {
   1511 	struct yds_softc *sc;
   1512 
   1513 	DPRINTF(("yds: yds_halt_output\n"));
   1514 	sc = addr;
   1515 	if (sc->sc_play.intr) {
   1516 		sc->sc_play.intr = 0;
   1517 		/* Sync play slot control data */
   1518 		bus_dmamap_sync(sc->sc_dmatag, sc->sc_ctrldata.map,
   1519 				sc->pbankoff,
   1520 				sizeof(struct play_slot_ctrl_bank)*
   1521 				    (*sc->ptbl)*N_PLAY_SLOT_CTRL_BANK,
   1522 				BUS_DMASYNC_POSTWRITE|BUS_DMASYNC_POSTREAD);
   1523 		/* Stop the play slot operation */
   1524 		sc->pbankp[0]->status =
   1525 		sc->pbankp[1]->status =
   1526 		sc->pbankp[2]->status =
   1527 		sc->pbankp[3]->status = 1;
   1528 		/* Sync ring buffer */
   1529 		bus_dmamap_sync(sc->sc_dmatag, sc->sc_play.dma->map,
   1530 				0, sc->sc_play.length, BUS_DMASYNC_POSTWRITE);
   1531 	}
   1532 
   1533 	return 0;
   1534 }
   1535 
   1536 int
   1537 yds_halt_input(void *addr)
   1538 {
   1539 	struct yds_softc *sc;
   1540 
   1541 	DPRINTF(("yds: yds_halt_input\n"));
   1542 	sc = addr;
   1543 	sc->sc_rec.intr = NULL;
   1544 	if (sc->sc_rec.intr) {
   1545 		/* Stop the rec slot operation */
   1546 		YWRITE4(sc, YDS_MAPOF_REC, 0);
   1547 		sc->sc_rec.intr = 0;
   1548 		/* Sync rec slot control data */
   1549 		bus_dmamap_sync(sc->sc_dmatag, sc->sc_ctrldata.map,
   1550 				sc->rbankoff,
   1551 				sizeof(struct rec_slot_ctrl_bank)*
   1552 				    N_REC_SLOT_CTRL*N_REC_SLOT_CTRL_BANK,
   1553 				BUS_DMASYNC_POSTWRITE|BUS_DMASYNC_POSTREAD);
   1554 		/* Sync ring buffer */
   1555 		bus_dmamap_sync(sc->sc_dmatag, sc->sc_rec.dma->map,
   1556 				0, sc->sc_rec.length, BUS_DMASYNC_POSTREAD);
   1557 	}
   1558 
   1559 	return 0;
   1560 }
   1561 
   1562 int
   1563 yds_getdev(void *addr, struct audio_device *retp)
   1564 {
   1565 
   1566 	*retp = yds_device;
   1567 	return 0;
   1568 }
   1569 
   1570 int
   1571 yds_mixer_set_port(void *addr, mixer_ctrl_t *cp)
   1572 {
   1573 	struct yds_softc *sc;
   1574 
   1575 	sc = addr;
   1576 	return sc->sc_codec[0].codec_if->vtbl->mixer_set_port(
   1577 	    sc->sc_codec[0].codec_if, cp);
   1578 }
   1579 
   1580 int
   1581 yds_mixer_get_port(void *addr, mixer_ctrl_t *cp)
   1582 {
   1583 	struct yds_softc *sc;
   1584 
   1585 	sc = addr;
   1586 	return sc->sc_codec[0].codec_if->vtbl->mixer_get_port(
   1587 	    sc->sc_codec[0].codec_if, cp);
   1588 }
   1589 
   1590 int
   1591 yds_query_devinfo(void *addr, mixer_devinfo_t *dip)
   1592 {
   1593 	struct yds_softc *sc;
   1594 
   1595 	sc = addr;
   1596 	return sc->sc_codec[0].codec_if->vtbl->query_devinfo(
   1597 	    sc->sc_codec[0].codec_if, dip);
   1598 }
   1599 
   1600 void *
   1601 yds_malloc(void *addr, int direction, size_t size,
   1602 	   struct malloc_type *pool, int flags)
   1603 {
   1604 	struct yds_softc *sc;
   1605 	struct yds_dma *p;
   1606 	int error;
   1607 
   1608 	p = malloc(sizeof(*p), pool, flags);
   1609 	if (p == NULL)
   1610 		return NULL;
   1611 	sc = addr;
   1612 	error = yds_allocmem(sc, size, 16, p);
   1613 	if (error) {
   1614 		free(p, pool);
   1615 		return NULL;
   1616 	}
   1617 	p->next = sc->sc_dmas;
   1618 	sc->sc_dmas = p;
   1619 	return KERNADDR(p);
   1620 }
   1621 
   1622 void
   1623 yds_free(void *addr, void *ptr, struct malloc_type *pool)
   1624 {
   1625 	struct yds_softc *sc;
   1626 	struct yds_dma **pp, *p;
   1627 
   1628 	sc = addr;
   1629 	for (pp = &sc->sc_dmas; (p = *pp) != NULL; pp = &p->next) {
   1630 		if (KERNADDR(p) == ptr) {
   1631 			yds_freemem(sc, p);
   1632 			*pp = p->next;
   1633 			free(p, pool);
   1634 			return;
   1635 		}
   1636 	}
   1637 }
   1638 
   1639 static struct yds_dma *
   1640 yds_find_dma(struct yds_softc *sc, void *addr)
   1641 {
   1642 	struct yds_dma *p;
   1643 
   1644 	for (p = sc->sc_dmas; p && KERNADDR(p) != addr; p = p->next)
   1645 		continue;
   1646 
   1647 	return p;
   1648 }
   1649 
   1650 size_t
   1651 yds_round_buffersize(void *addr, int direction, size_t size)
   1652 {
   1653 
   1654 	/*
   1655 	 * Buffer size should be at least twice as bigger as a frame.
   1656 	 */
   1657 	if (size < 1024 * 3)
   1658 		size = 1024 * 3;
   1659 	return size;
   1660 }
   1661 
   1662 paddr_t
   1663 yds_mappage(void *addr, void *mem, off_t off, int prot)
   1664 {
   1665 	struct yds_softc *sc;
   1666 	struct yds_dma *p;
   1667 
   1668 	if (off < 0)
   1669 		return -1;
   1670 	sc = addr;
   1671 	p = yds_find_dma(sc, mem);
   1672 	if (p == NULL)
   1673 		return -1;
   1674 	return bus_dmamem_mmap(sc->sc_dmatag, p->segs, p->nsegs,
   1675 	    off, prot, BUS_DMA_WAITOK);
   1676 }
   1677 
   1678 int
   1679 yds_get_props(void *addr)
   1680 {
   1681 
   1682 	return AUDIO_PROP_MMAP | AUDIO_PROP_INDEPENDENT |
   1683 	    AUDIO_PROP_FULLDUPLEX;
   1684 }
   1685