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auvia.c revision 1.45
      1 /*	$NetBSD: auvia.c,v 1.45 2004/11/08 06:20:58 kent Exp $	*/
      2 
      3 /*-
      4  * Copyright (c) 2000 The NetBSD Foundation, Inc.
      5  * All rights reserved.
      6  *
      7  * This code is derived from software contributed to The NetBSD Foundation
      8  * by Tyler C. Sarna
      9  *
     10  * Redistribution and use in source and binary forms, with or without
     11  * modification, are permitted provided that the following conditions
     12  * are met:
     13  * 1. Redistributions of source code must retain the above copyright
     14  *    notice, this list of conditions and the following disclaimer.
     15  * 2. Redistributions in binary form must reproduce the above copyright
     16  *    notice, this list of conditions and the following disclaimer in the
     17  *    documentation and/or other materials provided with the distribution.
     18  * 3. All advertising materials mentioning features or use of this software
     19  *    must display the following acknowledgement:
     20  *	This product includes software developed by the NetBSD
     21  *	Foundation, Inc. and its contributors.
     22  * 4. Neither the name of The NetBSD Foundation nor the names of its
     23  *    contributors may be used to endorse or promote products derived
     24  *    from this software without specific prior written permission.
     25  *
     26  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
     27  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
     28  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     29  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
     30  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
     31  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
     32  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
     33  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
     34  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
     35  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
     36  * POSSIBILITY OF SUCH DAMAGE.
     37  */
     38 
     39 /*
     40  * VIA Technologies VT82C686A / VT8233 / VT8235 Southbridge Audio Driver
     41  *
     42  * Documentation links:
     43  *
     44  * ftp://ftp.alsa-project.org/pub/manuals/via/686a.pdf
     45  * ftp://ftp.alsa-project.org/pub/manuals/general/ac97r21.pdf
     46  * ftp://ftp.alsa-project.org/pub/manuals/ad/AD1881_0.pdf (example AC'97 codec)
     47  */
     48 
     49 #include <sys/cdefs.h>
     50 __KERNEL_RCSID(0, "$NetBSD: auvia.c,v 1.45 2004/11/08 06:20:58 kent Exp $");
     51 
     52 #include <sys/param.h>
     53 #include <sys/systm.h>
     54 #include <sys/malloc.h>
     55 #include <sys/device.h>
     56 #include <sys/audioio.h>
     57 
     58 #include <uvm/uvm_extern.h>
     59 
     60 #include <dev/pci/pcidevs.h>
     61 #include <dev/pci/pcivar.h>
     62 
     63 #include <dev/audio_if.h>
     64 #include <dev/mulaw.h>
     65 #include <dev/auconv.h>
     66 
     67 #include <dev/ic/ac97reg.h>
     68 #include <dev/ic/ac97var.h>
     69 
     70 #include <dev/pci/auviavar.h>
     71 
     72 struct auvia_dma {
     73 	struct auvia_dma *next;
     74 	caddr_t addr;
     75 	size_t size;
     76 	bus_dmamap_t map;
     77 	bus_dma_segment_t seg;
     78 };
     79 
     80 struct auvia_dma_op {
     81 	u_int32_t ptr;
     82 	u_int32_t flags;
     83 #define AUVIA_DMAOP_EOL		0x80000000
     84 #define AUVIA_DMAOP_FLAG	0x40000000
     85 #define AUVIA_DMAOP_STOP	0x20000000
     86 #define AUVIA_DMAOP_COUNT(x)	((x)&0x00FFFFFF)
     87 };
     88 
     89 int	auvia_match(struct device *, struct cfdata *, void *);
     90 void	auvia_attach(struct device *, struct device *, void *);
     91 int	auvia_open(void *, int);
     92 void	auvia_close(void *);
     93 int	auvia_query_encoding(void *, struct audio_encoding *);
     94 void	auvia_set_params_sub(struct auvia_softc *, struct auvia_softc_chan *,
     95 	struct audio_params *);
     96 int	auvia_set_params(void *, int, int, struct audio_params *,
     97 	struct audio_params *);
     98 int	auvia_round_blocksize(void *, int);
     99 int	auvia_halt_output(void *);
    100 int	auvia_halt_input(void *);
    101 int	auvia_getdev(void *, struct audio_device *);
    102 int	auvia_set_port(void *, mixer_ctrl_t *);
    103 int	auvia_get_port(void *, mixer_ctrl_t *);
    104 int	auvia_query_devinfo(void *, mixer_devinfo_t *);
    105 void *	auvia_malloc(void *, int, size_t, struct malloc_type *, int);
    106 void	auvia_free(void *, void *, struct malloc_type *);
    107 size_t	auvia_round_buffersize(void *, int, size_t);
    108 paddr_t	auvia_mappage(void *, void *, off_t, int);
    109 int	auvia_get_props(void *);
    110 int	auvia_build_dma_ops(struct auvia_softc *, struct auvia_softc_chan *,
    111 	struct auvia_dma *, void *, void *, int);
    112 int	auvia_trigger_output(void *, void *, void *, int, void (*)(void *),
    113 	void *, struct audio_params *);
    114 int	auvia_trigger_input(void *, void *, void *, int, void (*)(void *),
    115 	void *, struct audio_params *);
    116 void	auvia_powerhook(int, void *);
    117 int	auvia_intr(void *);
    118 
    119 CFATTACH_DECL(auvia, sizeof (struct auvia_softc),
    120     auvia_match, auvia_attach, NULL, NULL);
    121 
    122 /* VIA VT823xx revision number */
    123 #define VIA_REV_8233C	0x20
    124 #define VIA_REV_8233	0x30
    125 #define VIA_REV_8233A	0x40
    126 #define VIA_REV_8235	0x50
    127 #define VIA_REV_8237	0x60
    128 
    129 #define AUVIA_PCICONF_JUNK	0x40
    130 #define		AUVIA_PCICONF_ENABLES	 0x00FF0000	/* reg 42 mask */
    131 #define		AUVIA_PCICONF_ACLINKENAB 0x00008000	/* ac link enab */
    132 #define		AUVIA_PCICONF_ACNOTRST	 0x00004000	/* ~(ac reset) */
    133 #define		AUVIA_PCICONF_ACSYNC	 0x00002000	/* ac sync */
    134 #define		AUVIA_PCICONF_ACVSR	 0x00000800	/* var. samp. rate */
    135 #define		AUVIA_PCICONF_ACSGD	 0x00000400	/* SGD enab */
    136 #define		AUVIA_PCICONF_ACFM	 0x00000200	/* FM enab */
    137 #define		AUVIA_PCICONF_ACSB	 0x00000100	/* SB enab */
    138 #define		AUVIA_PCICONF_PRIVALID	 0x00000001	/* primary codec rdy */
    139 
    140 #define	AUVIA_PLAY_BASE			0x00
    141 #define	AUVIA_RECORD_BASE		0x10
    142 
    143 /* *_RP_* are offsets from AUVIA_PLAY_BASE or AUVIA_RECORD_BASE */
    144 #define	AUVIA_RP_STAT			0x00
    145 #define		AUVIA_RPSTAT_INTR		0x03
    146 #define	AUVIA_RP_CONTROL		0x01
    147 #define		AUVIA_RPCTRL_START		0x80
    148 #define		AUVIA_RPCTRL_TERMINATE		0x40
    149 #define		AUVIA_RPCTRL_AUTOSTART		0x20
    150 /* The following are 8233 specific */
    151 #define		AUVIA_RPCTRL_STOP		0x04
    152 #define		AUVIA_RPCTRL_EOL		0x02
    153 #define		AUVIA_RPCTRL_FLAG		0x01
    154 #define	AUVIA_RP_MODE			0x02		/* 82c686 specific */
    155 #define		AUVIA_RPMODE_INTR_FLAG		0x01
    156 #define		AUVIA_RPMODE_INTR_EOL		0x02
    157 #define		AUVIA_RPMODE_STEREO		0x10
    158 #define		AUVIA_RPMODE_16BIT		0x20
    159 #define		AUVIA_RPMODE_AUTOSTART		0x80
    160 #define	AUVIA_RP_DMAOPS_BASE		0x04
    161 
    162 #define	VIA8233_RP_DXS_LVOL		0x02
    163 #define	VIA8233_RP_DXS_RVOL		0x03
    164 #define	VIA8233_RP_RATEFMT		0x08
    165 #define		VIA8233_RATEFMT_48K		0xfffff
    166 #define		VIA8233_RATEFMT_STEREO		0x00100000
    167 #define		VIA8233_RATEFMT_16BIT		0x00200000
    168 
    169 #define	VIA_RP_DMAOPS_COUNT		0x0c
    170 
    171 #define VIA8233_MP_BASE			0x40
    172 	/* STAT, CONTROL, DMAOPS_BASE, DMAOPS_COUNT are valid */
    173 #define VIA8233_OFF_MP_FORMAT		0x02
    174 #define		VIA8233_MP_FORMAT_8BIT		0x00
    175 #define		VIA8233_MP_FORMAT_16BIT		0x80
    176 #define		VIA8233_MP_FORMAT_CHANNLE_MASK	0x70 /* 1, 2, 4, 6 */
    177 #define VIA8233_OFF_MP_SCRATCH		0x03
    178 #define VIA8233_OFF_MP_STOP		0x08
    179 
    180 #define	AUVIA_CODEC_CTL			0x80
    181 #define		AUVIA_CODEC_READ		0x00800000
    182 #define		AUVIA_CODEC_BUSY		0x01000000
    183 #define		AUVIA_CODEC_PRIVALID		0x02000000
    184 #define		AUVIA_CODEC_INDEX(x)		((x)<<16)
    185 
    186 #define CH_WRITE1(sc, ch, off, v)	\
    187 	bus_space_write_1((sc)->sc_iot,	(sc)->sc_ioh, (ch)->sc_base + (off), v)
    188 #define CH_WRITE4(sc, ch, off, v)	\
    189 	bus_space_write_4((sc)->sc_iot,	(sc)->sc_ioh, (ch)->sc_base + (off), v)
    190 #define CH_READ1(sc, ch, off)		\
    191 	bus_space_read_1((sc)->sc_iot, (sc)->sc_ioh, (ch)->sc_base + (off))
    192 #define CH_READ4(sc, ch, off)		\
    193 	bus_space_read_4((sc)->sc_iot, (sc)->sc_ioh, (ch)->sc_base + (off))
    194 
    195 #define TIMEOUT	50
    196 
    197 const struct audio_hw_if auvia_hw_if = {
    198 	auvia_open,
    199 	auvia_close,
    200 	NULL, /* drain */
    201 	auvia_query_encoding,
    202 	auvia_set_params,
    203 	auvia_round_blocksize,
    204 	NULL, /* commit_settings */
    205 	NULL, /* init_output */
    206 	NULL, /* init_input */
    207 	NULL, /* start_output */
    208 	NULL, /* start_input */
    209 	auvia_halt_output,
    210 	auvia_halt_input,
    211 	NULL, /* speaker_ctl */
    212 	auvia_getdev,
    213 	NULL, /* setfd */
    214 	auvia_set_port,
    215 	auvia_get_port,
    216 	auvia_query_devinfo,
    217 	auvia_malloc,
    218 	auvia_free,
    219 	auvia_round_buffersize,
    220 	auvia_mappage,
    221 	auvia_get_props,
    222 	auvia_trigger_output,
    223 	auvia_trigger_input,
    224 	NULL, /* dev_ioctl */
    225 };
    226 
    227 int	auvia_attach_codec(void *, struct ac97_codec_if *);
    228 int	auvia_write_codec(void *, u_int8_t, u_int16_t);
    229 int	auvia_read_codec(void *, u_int8_t, u_int16_t *);
    230 int	auvia_reset_codec(void *);
    231 int	auvia_waitready_codec(struct auvia_softc *sc);
    232 int	auvia_waitvalid_codec(struct auvia_softc *sc);
    233 
    234 
    235 int
    236 auvia_match(struct device *parent, struct cfdata *match, void *aux)
    237 {
    238 	struct pci_attach_args *pa = (struct pci_attach_args *) aux;
    239 
    240 	if (PCI_VENDOR(pa->pa_id) != PCI_VENDOR_VIATECH)
    241 		return 0;
    242 	switch (PCI_PRODUCT(pa->pa_id)) {
    243 	case PCI_PRODUCT_VIATECH_VT82C686A_AC97:
    244 	case PCI_PRODUCT_VIATECH_VT8233_AC97:
    245 		break;
    246 	default:
    247 		return 0;
    248 	}
    249 
    250 	return 1;
    251 }
    252 
    253 
    254 void
    255 auvia_attach(struct device *parent, struct device *self, void *aux)
    256 {
    257 	struct pci_attach_args *pa = aux;
    258 	struct auvia_softc *sc = (struct auvia_softc *) self;
    259 	const char *intrstr = NULL;
    260 	pci_chipset_tag_t pc = pa->pa_pc;
    261 	pcitag_t pt = pa->pa_tag;
    262 	pci_intr_handle_t ih;
    263 	bus_size_t iosize;
    264 	pcireg_t pr;
    265 	int r;
    266 	const char *revnum = NULL; /* VT823xx revision number */
    267 
    268 	aprint_naive(": Audio controller\n");
    269 
    270 	sc->sc_play.sc_base = AUVIA_PLAY_BASE;
    271 	sc->sc_record.sc_base = AUVIA_RECORD_BASE;
    272 	if (PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_VIATECH_VT8233_AC97) {
    273 		sc->sc_flags |= AUVIA_FLAGS_VT8233;
    274 		sc->sc_play.sc_base = VIA8233_MP_BASE;
    275 	}
    276 
    277 	if (pci_mapreg_map(pa, 0x10, PCI_MAPREG_TYPE_IO, 0, &sc->sc_iot,
    278 		&sc->sc_ioh, NULL, &iosize)) {
    279 		aprint_error(": can't map i/o space\n");
    280 		return;
    281 	}
    282 
    283 	sc->sc_dmat = pa->pa_dmat;
    284 	sc->sc_pc = pc;
    285 	sc->sc_pt = pt;
    286 
    287 	r = PCI_REVISION(pa->pa_class);
    288 	if (sc->sc_flags & AUVIA_FLAGS_VT8233) {
    289 		snprintf(sc->sc_revision, sizeof(sc->sc_revision), "0x%02X", r);
    290 		switch(r) {
    291 		case VIA_REV_8233C:
    292 			/* 2 rec, 4 pb, 1 multi-pb */
    293 			revnum = "3C";
    294 			break;
    295 		case VIA_REV_8233:
    296 			/* 2 rec, 4 pb, 1 multi-pb, spdif */
    297 			revnum = "3";
    298 			break;
    299 		case VIA_REV_8233A:
    300 			/* 1 rec, 1 multi-pb, spdif */
    301 			revnum = "3A";
    302 			break;
    303 		default:
    304 			break;
    305 		}
    306 		if (r >= VIA_REV_8235)
    307 			revnum = "7";
    308 		else if (r >= VIA_REV_8235) /* 2 rec, 4 pb, 1 multi-pb, spdif */
    309 			revnum = "5";
    310 		aprint_normal(": VIA Technologies VT823%s AC'97 Audio "
    311 		    "(rev %s)\n", revnum, sc->sc_revision);
    312 	} else {
    313 		sc->sc_revision[1] = '\0';
    314 		if (r == 0x20) {
    315 			sc->sc_revision[0] = 'H';
    316 		} else if ((r >= 0x10) && (r <= 0x14)) {
    317 			sc->sc_revision[0] = 'A' + (r - 0x10);
    318 		} else {
    319 			snprintf(sc->sc_revision, sizeof(sc->sc_revision),
    320 			    "0x%02X", r);
    321 		}
    322 
    323 		aprint_normal(": VIA Technologies VT82C686A AC'97 Audio "
    324 		    "(rev %s)\n", sc->sc_revision);
    325 	}
    326 
    327 	if (pci_intr_map(pa, &ih)) {
    328 		aprint_error(": couldn't map interrupt\n");
    329 		bus_space_unmap(sc->sc_iot, sc->sc_ioh, iosize);
    330 		return;
    331 	}
    332 	intrstr = pci_intr_string(pc, ih);
    333 
    334 	sc->sc_ih = pci_intr_establish(pc, ih, IPL_AUDIO, auvia_intr, sc);
    335 	if (sc->sc_ih == NULL) {
    336 		aprint_error("%s: couldn't establish interrupt",
    337 		    sc->sc_dev.dv_xname);
    338 		if (intrstr != NULL)
    339 			aprint_normal(" at %s", intrstr);
    340 		aprint_normal("\n");
    341 		bus_space_unmap(sc->sc_iot, sc->sc_ioh, iosize);
    342 		return;
    343 	}
    344 
    345 	aprint_normal("%s: interrupting at %s\n", sc->sc_dev.dv_xname, intrstr);
    346 
    347 	/* disable SBPro compat & others */
    348 	pr = pci_conf_read(pc, pt, AUVIA_PCICONF_JUNK);
    349 
    350 	pr &= ~AUVIA_PCICONF_ENABLES; /* clear compat function enables */
    351 	/* XXX what to do about MIDI, FM, joystick? */
    352 
    353 	pr |= (AUVIA_PCICONF_ACLINKENAB | AUVIA_PCICONF_ACNOTRST
    354 		| AUVIA_PCICONF_ACVSR | AUVIA_PCICONF_ACSGD);
    355 
    356 	pr &= ~(AUVIA_PCICONF_ACFM | AUVIA_PCICONF_ACSB);
    357 
    358 	pci_conf_write(pc, pt, AUVIA_PCICONF_JUNK, pr);
    359 
    360 	sc->host_if.arg = sc;
    361 	sc->host_if.attach = auvia_attach_codec;
    362 	sc->host_if.read = auvia_read_codec;
    363 	sc->host_if.write = auvia_write_codec;
    364 	sc->host_if.reset = auvia_reset_codec;
    365 
    366 	if ((r = ac97_attach(&sc->host_if)) != 0) {
    367 		aprint_error("%s: can't attach codec (error 0x%X)\n",
    368 			sc->sc_dev.dv_xname, r);
    369 		pci_intr_disestablish(pc, sc->sc_ih);
    370 		bus_space_unmap(sc->sc_iot, sc->sc_ioh, iosize);
    371 		return;
    372 	}
    373 
    374 	/* Watch for power change */
    375 	sc->sc_suspend = PWR_RESUME;
    376 	sc->sc_powerhook = powerhook_establish(auvia_powerhook, sc);
    377 
    378 	audio_attach_mi(&auvia_hw_if, sc, &sc->sc_dev);
    379 }
    380 
    381 
    382 int
    383 auvia_attach_codec(void *addr, struct ac97_codec_if *cif)
    384 {
    385 	struct auvia_softc *sc = addr;
    386 
    387 	sc->codec_if = cif;
    388 
    389 	return 0;
    390 }
    391 
    392 
    393 int
    394 auvia_reset_codec(void *addr)
    395 {
    396 	int i;
    397 	struct auvia_softc *sc = addr;
    398 	pcireg_t r;
    399 
    400 	/* perform a codec cold reset */
    401 
    402 	r = pci_conf_read(sc->sc_pc, sc->sc_pt, AUVIA_PCICONF_JUNK);
    403 
    404 	r &= ~AUVIA_PCICONF_ACNOTRST;	/* enable RESET (active low) */
    405 	pci_conf_write(sc->sc_pc, sc->sc_pt, AUVIA_PCICONF_JUNK, r);
    406 	delay(2);
    407 
    408 	r |= AUVIA_PCICONF_ACNOTRST;	/* disable RESET (inactive high) */
    409 	pci_conf_write(sc->sc_pc, sc->sc_pt, AUVIA_PCICONF_JUNK, r);
    410 	delay(200);
    411 
    412 	for (i = 500000; i != 0 && !(pci_conf_read(sc->sc_pc, sc->sc_pt,
    413 		AUVIA_PCICONF_JUNK) & AUVIA_PCICONF_PRIVALID); i--)
    414 		DELAY(1);
    415 	if (i == 0) {
    416 		printf("%s: codec reset timed out\n", sc->sc_dev.dv_xname);
    417 		return ETIMEDOUT;
    418 	}
    419 	return 0;
    420 }
    421 
    422 
    423 int
    424 auvia_waitready_codec(struct auvia_softc *sc)
    425 {
    426 	int i;
    427 
    428 	/* poll until codec not busy */
    429 	for (i = 0; (i < TIMEOUT) && (bus_space_read_4(sc->sc_iot, sc->sc_ioh,
    430 		AUVIA_CODEC_CTL) & AUVIA_CODEC_BUSY); i++)
    431 		delay(1);
    432 	if (i >= TIMEOUT) {
    433 		printf("%s: codec busy\n", sc->sc_dev.dv_xname);
    434 		return 1;
    435 	}
    436 
    437 	return 0;
    438 }
    439 
    440 
    441 int
    442 auvia_waitvalid_codec(struct auvia_softc *sc)
    443 {
    444 	int i;
    445 
    446 	/* poll until codec valid */
    447 	for (i = 0; (i < TIMEOUT) && !(bus_space_read_4(sc->sc_iot, sc->sc_ioh,
    448 		AUVIA_CODEC_CTL) & AUVIA_CODEC_PRIVALID); i++)
    449 			delay(1);
    450 	if (i >= TIMEOUT) {
    451 		printf("%s: codec invalid\n", sc->sc_dev.dv_xname);
    452 		return 1;
    453 	}
    454 
    455 	return 0;
    456 }
    457 
    458 
    459 int
    460 auvia_write_codec(void *addr, u_int8_t reg, u_int16_t val)
    461 {
    462 	struct auvia_softc *sc = addr;
    463 
    464 	if (auvia_waitready_codec(sc))
    465 		return 1;
    466 
    467 	bus_space_write_4(sc->sc_iot, sc->sc_ioh, AUVIA_CODEC_CTL,
    468 		AUVIA_CODEC_PRIVALID | AUVIA_CODEC_INDEX(reg) | val);
    469 
    470 	return 0;
    471 }
    472 
    473 
    474 int
    475 auvia_read_codec(void *addr, u_int8_t reg, u_int16_t *val)
    476 {
    477 	struct auvia_softc *sc = addr;
    478 
    479 	if (auvia_waitready_codec(sc))
    480 		return 1;
    481 
    482 	bus_space_write_4(sc->sc_iot, sc->sc_ioh, AUVIA_CODEC_CTL,
    483 		AUVIA_CODEC_PRIVALID | AUVIA_CODEC_READ | AUVIA_CODEC_INDEX(reg));
    484 
    485 	if (auvia_waitready_codec(sc))
    486 		return 1;
    487 
    488 	if (auvia_waitvalid_codec(sc))
    489 		return 1;
    490 
    491 	*val = bus_space_read_2(sc->sc_iot, sc->sc_ioh, AUVIA_CODEC_CTL);
    492 
    493 	return 0;
    494 }
    495 
    496 
    497 int
    498 auvia_open(void *addr, int flags)
    499 {
    500 	return 0;
    501 }
    502 
    503 
    504 void
    505 auvia_close(void *addr)
    506 {
    507 }
    508 
    509 
    510 int
    511 auvia_query_encoding(void *addr, struct audio_encoding *fp)
    512 {
    513 	switch (fp->index) {
    514 	case 0:
    515 		strcpy(fp->name, AudioEulinear);
    516 		fp->encoding = AUDIO_ENCODING_ULINEAR;
    517 		fp->precision = 8;
    518 		fp->flags = 0;
    519 		return (0);
    520 	case 1:
    521 		strcpy(fp->name, AudioEmulaw);
    522 		fp->encoding = AUDIO_ENCODING_ULAW;
    523 		fp->precision = 8;
    524 		fp->flags = AUDIO_ENCODINGFLAG_EMULATED;
    525 		return (0);
    526 	case 2:
    527 		strcpy(fp->name, AudioEalaw);
    528 		fp->encoding = AUDIO_ENCODING_ALAW;
    529 		fp->precision = 8;
    530 		fp->flags = AUDIO_ENCODINGFLAG_EMULATED;
    531 		return (0);
    532 	case 3:
    533 		strcpy(fp->name, AudioEslinear);
    534 		fp->encoding = AUDIO_ENCODING_SLINEAR;
    535 		fp->precision = 8;
    536 		fp->flags = AUDIO_ENCODINGFLAG_EMULATED;
    537 		return (0);
    538 	case 4:
    539 		strcpy(fp->name, AudioEslinear_le);
    540 		fp->encoding = AUDIO_ENCODING_SLINEAR_LE;
    541 		fp->precision = 16;
    542 		fp->flags = 0;
    543 		return (0);
    544 	case 5:
    545 		strcpy(fp->name, AudioEulinear_le);
    546 		fp->encoding = AUDIO_ENCODING_ULINEAR_LE;
    547 		fp->precision = 16;
    548 		fp->flags = AUDIO_ENCODINGFLAG_EMULATED;
    549 		return (0);
    550 	case 6:
    551 		strcpy(fp->name, AudioEslinear_be);
    552 		fp->encoding = AUDIO_ENCODING_SLINEAR_BE;
    553 		fp->precision = 16;
    554 		fp->flags = AUDIO_ENCODINGFLAG_EMULATED;
    555 		return (0);
    556 	case 7:
    557 		strcpy(fp->name, AudioEulinear_be);
    558 		fp->encoding = AUDIO_ENCODING_ULINEAR_BE;
    559 		fp->precision = 16;
    560 		fp->flags = AUDIO_ENCODINGFLAG_EMULATED;
    561 		return (0);
    562 	default:
    563 		return (EINVAL);
    564 	}
    565 }
    566 
    567 void
    568 auvia_set_params_sub(struct auvia_softc *sc, struct auvia_softc_chan *ch,
    569 		     struct audio_params *p)
    570 {
    571 	u_int32_t v;
    572 	u_int16_t regval;
    573 
    574 	if (!(sc->sc_flags & AUVIA_FLAGS_VT8233)) {
    575 		regval = (p->channels == 2 ? AUVIA_RPMODE_STEREO : 0)
    576 			| (p->precision * p->factor == 16 ?
    577 				AUVIA_RPMODE_16BIT : 0)
    578 			| AUVIA_RPMODE_INTR_FLAG | AUVIA_RPMODE_INTR_EOL
    579 			| AUVIA_RPMODE_AUTOSTART;
    580 		ch->sc_reg = regval;
    581 	} else if (ch->sc_base != VIA8233_MP_BASE) {
    582 		v = CH_READ4(sc, ch, VIA8233_RP_RATEFMT);
    583 		v &= ~(VIA8233_RATEFMT_48K | VIA8233_RATEFMT_STEREO
    584 			| VIA8233_RATEFMT_16BIT);
    585 
    586 		v |= VIA8233_RATEFMT_48K * (p->sample_rate / 20)
    587 			/ (48000 / 20);
    588 		if (p->channels == 2)
    589 			v |= VIA8233_RATEFMT_STEREO;
    590 		if (p->precision == 16)
    591 			v |= VIA8233_RATEFMT_16BIT;
    592 
    593 		CH_WRITE4(sc, ch, VIA8233_RP_RATEFMT, v);
    594 	} else {
    595 		static const u_int32_t slottab[7] =
    596 			{ 0, 0xff000011, 0xff000021, 0,
    597 			  0xff004321, 0, 0xff436521};
    598 
    599 		regval = (p->hw_precision == 16
    600 			? VIA8233_MP_FORMAT_16BIT : VIA8233_MP_FORMAT_8BIT)
    601 			| (p->hw_channels << 4);
    602 		CH_WRITE1(sc, ch, VIA8233_OFF_MP_FORMAT, regval);
    603 		CH_WRITE4(sc, ch, VIA8233_OFF_MP_STOP, slottab[p->hw_channels]);
    604 	}
    605 }
    606 
    607 int
    608 auvia_set_params(void *addr, int setmode, int usemode,
    609 	struct audio_params *play, struct audio_params *rec)
    610 {
    611 	struct auvia_softc *sc = addr;
    612 	struct auvia_softc_chan *ch;
    613 	struct audio_params *p;
    614 	struct ac97_codec_if* codec;
    615 	int reg, mode;
    616 	u_int16_t ext_id;
    617 
    618 	codec = sc->codec_if;
    619 	/* for mode in (RECORD, PLAY) */
    620 	for (mode = AUMODE_RECORD; mode != -1;
    621 	     mode = mode == AUMODE_RECORD ? AUMODE_PLAY : -1) {
    622 		if ((setmode & mode) == 0)
    623 			continue;
    624 
    625 		if (mode == AUMODE_PLAY ) {
    626 			p = play;
    627 			ch = &sc->sc_play;
    628 			reg = AC97_REG_PCM_FRONT_DAC_RATE;
    629 		} else {
    630 			p = rec;
    631 			ch = &sc->sc_record;
    632 			reg = AC97_REG_PCM_LR_ADC_RATE;
    633 		}
    634 
    635 		if (ch->sc_base == VIA8233_MP_BASE && mode == AUMODE_PLAY) {
    636 			ext_id = codec->vtbl->get_extcaps(codec);
    637 			if (p->channels == 1) {
    638 				/* ok */
    639 			} else if (p->channels == 2) {
    640 				/* ok */
    641 			} else if (p->channels == 4
    642 				&& ext_id & AC97_EXT_AUDIO_SDAC) {
    643 				/* ok */
    644 #define BITS_6CH	(AC97_EXT_AUDIO_SDAC | AC97_EXT_AUDIO_CDAC | AC97_EXT_AUDIO_LDAC)
    645 			} else if (p->channels == 6
    646 				&& (ext_id & BITS_6CH) == BITS_6CH) {
    647 				/* ok */
    648 			} else {
    649 				return (EINVAL);
    650 			}
    651 		} else {
    652 			if (p->channels != 1 && p->channels != 2)
    653 				return (EINVAL);
    654 		}
    655 		if (p->sample_rate < 4000 || p->sample_rate > 48000 ||
    656 		    (p->precision != 8 && p->precision != 16))
    657 			return (EINVAL);
    658 
    659 		if (IS_FIXED_RATE(codec)) {
    660 			/* Enable aurateconv */
    661 			p->hw_sample_rate = AC97_SINGLE_RATE;
    662 		} else {
    663 			if (codec->vtbl->set_rate(codec, reg, &p->sample_rate))
    664 				return (EINVAL);
    665 			reg = AC97_REG_PCM_SURR_DAC_RATE;
    666 			if (p->channels >= 4
    667 			    && codec->vtbl->set_rate(codec, reg,
    668 						     &p->sample_rate))
    669 				return (EINVAL);
    670 			reg = AC97_REG_PCM_LFE_DAC_RATE;
    671 			if (p->channels == 6
    672 			    && codec->vtbl->set_rate(codec, reg,
    673 						     &p->sample_rate))
    674 				return (EINVAL);
    675 		}
    676 
    677 		p->factor = 1;
    678 		p->sw_code = 0;
    679 		switch (p->encoding) {
    680 		case AUDIO_ENCODING_SLINEAR_BE:
    681 			if (p->precision == 16) {
    682 				p->sw_code = swap_bytes;
    683 				p->hw_encoding = AUDIO_ENCODING_SLINEAR_LE;
    684 			} else {
    685 				p->sw_code = change_sign8;
    686 				p->hw_encoding = AUDIO_ENCODING_ULINEAR;
    687 			}
    688 			break;
    689 		case AUDIO_ENCODING_SLINEAR_LE:
    690 			if (p->precision != 16) {
    691 				p->sw_code = change_sign8;
    692 				p->hw_encoding = AUDIO_ENCODING_ULINEAR;
    693 			}
    694 			break;
    695 		case AUDIO_ENCODING_ULINEAR_BE:
    696 			if (p->precision == 16) {
    697 				if (mode == AUMODE_PLAY)
    698 					p->sw_code = swap_bytes_change_sign16_le;
    699 				else
    700 					p->sw_code = change_sign16_swap_bytes_le;
    701 				p->hw_encoding = AUDIO_ENCODING_SLINEAR_LE;
    702 			}
    703 			break;
    704 		case AUDIO_ENCODING_ULINEAR_LE:
    705 			if (p->precision == 16) {
    706 				p->sw_code = change_sign16_le;
    707 				p->hw_encoding = AUDIO_ENCODING_SLINEAR_LE;
    708 			}
    709 			break;
    710 		case AUDIO_ENCODING_ULAW:
    711 			if (p->precision != 8)
    712 				return (EINVAL);
    713 			if (mode == AUMODE_PLAY) {
    714 				p->factor = 2;
    715 				p->sw_code = mulaw_to_slinear16_le;
    716 				p->hw_encoding = AUDIO_ENCODING_SLINEAR_LE;
    717 				p->hw_precision = 16;
    718 			} else if (!IS_FIXED_RATE(codec)) {
    719 				p->sw_code = ulinear8_to_mulaw;
    720 				p->hw_encoding = AUDIO_ENCODING_ULINEAR;
    721 			} else {
    722 				/* aurateconv supports no 8 bit PCM */
    723 				p->factor = 2;
    724 				p->sw_code = slinear16_to_mulaw_le;
    725 				p->hw_encoding = AUDIO_ENCODING_SLINEAR_LE;
    726 				p->hw_precision = 16;
    727 			}
    728 			break;
    729 		case AUDIO_ENCODING_ALAW:
    730 			if (p->precision != 8)
    731 				return (EINVAL);
    732 			if (mode == AUMODE_PLAY) {
    733 				p->factor = 2;
    734 				p->sw_code = alaw_to_slinear16_le;
    735 				p->hw_encoding = AUDIO_ENCODING_SLINEAR_LE;
    736 				p->hw_precision = 16;
    737 			} else if (!IS_FIXED_RATE(codec)) {
    738 				p->sw_code = ulinear8_to_alaw;
    739 				p->hw_encoding = AUDIO_ENCODING_ULINEAR;
    740 			} else {
    741 				/* aurateconv supports no 8 bit PCM */
    742 				p->factor = 2;
    743 				p->sw_code = slinear16_to_alaw_le;
    744 				p->hw_encoding = AUDIO_ENCODING_SLINEAR_LE;
    745 				p->hw_precision = 16;
    746 			}
    747 			break;
    748 		default:
    749 			return (EINVAL);
    750 		}
    751 		auvia_set_params_sub(sc, ch, p);
    752 	}
    753 
    754 	return 0;
    755 }
    756 
    757 
    758 int
    759 auvia_round_blocksize(void *addr, int blk)
    760 {
    761 	struct auvia_softc *sc = addr;
    762 
    763 	/* XXX VT823x might have the limitation of dma_ops size */
    764 	if (sc->sc_flags & AUVIA_FLAGS_VT8233 && blk < 288)
    765 		blk = 288;
    766 
    767 	return (blk & -32);
    768 }
    769 
    770 
    771 int
    772 auvia_halt_output(void *addr)
    773 {
    774 	struct auvia_softc *sc = addr;
    775 	struct auvia_softc_chan *ch = &(sc->sc_play);
    776 
    777 	CH_WRITE1(sc, ch, AUVIA_RP_CONTROL, AUVIA_RPCTRL_TERMINATE);
    778 	ch->sc_intr = NULL;
    779 	return 0;
    780 }
    781 
    782 
    783 int
    784 auvia_halt_input(void *addr)
    785 {
    786 	struct auvia_softc *sc = addr;
    787 	struct auvia_softc_chan *ch = &(sc->sc_record);
    788 
    789 	CH_WRITE1(sc, ch, AUVIA_RP_CONTROL, AUVIA_RPCTRL_TERMINATE);
    790 	ch->sc_intr = NULL;
    791 	return 0;
    792 }
    793 
    794 
    795 int
    796 auvia_getdev(void *addr, struct audio_device *retp)
    797 {
    798 	struct auvia_softc *sc = addr;
    799 
    800 	if (retp) {
    801 		if (sc->sc_flags & AUVIA_FLAGS_VT8233) {
    802 			strncpy(retp->name, "VIA VT823x",
    803 				sizeof(retp->name));
    804 		} else {
    805 			strncpy(retp->name, "VIA VT82C686A",
    806 				sizeof(retp->name));
    807 		}
    808 		strncpy(retp->version, sc->sc_revision, sizeof(retp->version));
    809 		strncpy(retp->config, "auvia", sizeof(retp->config));
    810 	}
    811 
    812 	return 0;
    813 }
    814 
    815 
    816 int
    817 auvia_set_port(void *addr, mixer_ctrl_t *cp)
    818 {
    819 	struct auvia_softc *sc = addr;
    820 
    821 	return (sc->codec_if->vtbl->mixer_set_port(sc->codec_if, cp));
    822 }
    823 
    824 
    825 int
    826 auvia_get_port(void *addr, mixer_ctrl_t *cp)
    827 {
    828 	struct auvia_softc *sc = addr;
    829 
    830 	return (sc->codec_if->vtbl->mixer_get_port(sc->codec_if, cp));
    831 }
    832 
    833 
    834 int
    835 auvia_query_devinfo(void *addr, mixer_devinfo_t *dip)
    836 {
    837 	struct auvia_softc *sc = addr;
    838 
    839 	return (sc->codec_if->vtbl->query_devinfo(sc->codec_if, dip));
    840 }
    841 
    842 
    843 void *
    844 auvia_malloc(void *addr, int direction, size_t size, struct malloc_type * pool,
    845     int flags)
    846 {
    847 	struct auvia_softc *sc = addr;
    848 	struct auvia_dma *p;
    849 	int error;
    850 	int rseg;
    851 
    852 	p = malloc(sizeof(*p), pool, flags);
    853 	if (!p)
    854 		return 0;
    855 
    856 	p->size = size;
    857 	if ((error = bus_dmamem_alloc(sc->sc_dmat, size, PAGE_SIZE, 0, &p->seg,
    858 				      1, &rseg, BUS_DMA_NOWAIT)) != 0) {
    859 		printf("%s: unable to allocate DMA, error = %d\n",
    860 		       sc->sc_dev.dv_xname, error);
    861 		goto fail_alloc;
    862 	}
    863 
    864 	if ((error = bus_dmamem_map(sc->sc_dmat, &p->seg, rseg, size, &p->addr,
    865 				    BUS_DMA_NOWAIT | BUS_DMA_COHERENT)) != 0) {
    866 		printf("%s: unable to map DMA, error = %d\n",
    867 		       sc->sc_dev.dv_xname, error);
    868 		goto fail_map;
    869 	}
    870 
    871 	if ((error = bus_dmamap_create(sc->sc_dmat, size, 1, size, 0,
    872 				       BUS_DMA_NOWAIT, &p->map)) != 0) {
    873 		printf("%s: unable to create DMA map, error = %d\n",
    874 		       sc->sc_dev.dv_xname, error);
    875 		goto fail_create;
    876 	}
    877 
    878 	if ((error = bus_dmamap_load(sc->sc_dmat, p->map, p->addr, size, NULL,
    879 				     BUS_DMA_NOWAIT)) != 0) {
    880 		printf("%s: unable to load DMA map, error = %d\n",
    881 		       sc->sc_dev.dv_xname, error);
    882 		goto fail_load;
    883 	}
    884 
    885 	p->next = sc->sc_dmas;
    886 	sc->sc_dmas = p;
    887 
    888 	return p->addr;
    889 
    890 
    891 fail_load:
    892 	bus_dmamap_destroy(sc->sc_dmat, p->map);
    893 fail_create:
    894 	bus_dmamem_unmap(sc->sc_dmat, p->addr, size);
    895 fail_map:
    896 	bus_dmamem_free(sc->sc_dmat, &p->seg, 1);
    897 fail_alloc:
    898 	free(p, pool);
    899 	return 0;
    900 }
    901 
    902 
    903 void
    904 auvia_free(void *addr, void *ptr, struct malloc_type *pool)
    905 {
    906 	struct auvia_softc *sc = addr;
    907 	struct auvia_dma **pp, *p;
    908 
    909 	for (pp = &(sc->sc_dmas); (p = *pp) != NULL; pp = &p->next)
    910 		if (p->addr == ptr) {
    911 			bus_dmamap_unload(sc->sc_dmat, p->map);
    912 			bus_dmamap_destroy(sc->sc_dmat, p->map);
    913 			bus_dmamem_unmap(sc->sc_dmat, p->addr, p->size);
    914 			bus_dmamem_free(sc->sc_dmat, &p->seg, 1);
    915 
    916 			*pp = p->next;
    917 			free(p, pool);
    918 			return;
    919 		}
    920 
    921 	panic("auvia_free: trying to free unallocated memory");
    922 }
    923 
    924 
    925 size_t
    926 auvia_round_buffersize(void *addr, int direction, size_t size)
    927 {
    928 	return size;
    929 }
    930 
    931 
    932 paddr_t
    933 auvia_mappage(void *addr, void *mem, off_t off, int prot)
    934 {
    935 	struct auvia_softc *sc = addr;
    936 	struct auvia_dma *p;
    937 
    938 	if (off < 0)
    939 		return -1;
    940 
    941 	for (p = sc->sc_dmas; p && p->addr != mem; p = p->next)
    942 		;
    943 
    944 	if (!p)
    945 		return -1;
    946 
    947 	return bus_dmamem_mmap(sc->sc_dmat, &p->seg, 1, off, prot,
    948 	       BUS_DMA_WAITOK);
    949 }
    950 
    951 
    952 int
    953 auvia_get_props(void *addr)
    954 {
    955 	struct auvia_softc *sc = addr;
    956 	int props;
    957 
    958 	props = AUDIO_PROP_INDEPENDENT | AUDIO_PROP_FULLDUPLEX;
    959 	/*
    960 	 * Even if the codec is fixed-rate, set_param() succeeds for any sample
    961 	 * rate because of aurateconv.  Applications can't know what rate the
    962 	 * device can process in the case of mmap().
    963 	 */
    964 	if (!IS_FIXED_RATE(sc->codec_if))
    965 		props |= AUDIO_PROP_MMAP;
    966 	return props;
    967 }
    968 
    969 
    970 int
    971 auvia_build_dma_ops(struct auvia_softc *sc, struct auvia_softc_chan *ch,
    972 	struct auvia_dma *p, void *start, void *end, int blksize)
    973 {
    974 	struct auvia_dma_op *op;
    975 	struct auvia_dma *dp;
    976 	bus_addr_t s;
    977 	size_t l;
    978 	int segs;
    979 
    980 	s = p->map->dm_segs[0].ds_addr;
    981 	l = ((char *)end - (char *)start);
    982 	segs = (l + blksize - 1) / blksize;
    983 
    984 	if (segs > (ch->sc_dma_op_count)) {
    985 		/* if old list was too small, free it */
    986 		if (ch->sc_dma_ops) {
    987 			auvia_free(sc, ch->sc_dma_ops, M_DEVBUF);
    988 		}
    989 
    990 		ch->sc_dma_ops = auvia_malloc(sc, 0,
    991 			sizeof(struct auvia_dma_op) * segs, M_DEVBUF, M_WAITOK);
    992 
    993 		if (ch->sc_dma_ops == NULL) {
    994 			printf("%s: couldn't build dmaops\n", sc->sc_dev.dv_xname);
    995 			return 1;
    996 		}
    997 
    998 		for (dp = sc->sc_dmas;
    999 			dp && dp->addr != (void *)(ch->sc_dma_ops);
   1000 			dp = dp->next)
   1001 				;
   1002 
   1003 		if (!dp)
   1004 			panic("%s: build_dma_ops: where'd my memory go??? "
   1005 				"address (%p)\n", sc->sc_dev.dv_xname,
   1006 				ch->sc_dma_ops);
   1007 
   1008 		ch->sc_dma_op_count = segs;
   1009 		ch->sc_dma_ops_dma = dp;
   1010 	}
   1011 
   1012 	dp = ch->sc_dma_ops_dma;
   1013 	op = ch->sc_dma_ops;
   1014 
   1015 	while (l) {
   1016 		op->ptr = s;
   1017 		l = l - blksize;
   1018 		if (!l) {
   1019 			/* if last block */
   1020 			op->flags = AUVIA_DMAOP_EOL | blksize;
   1021 		} else {
   1022 			op->flags = AUVIA_DMAOP_FLAG | blksize;
   1023 		}
   1024 		s += blksize;
   1025 		op++;
   1026 	}
   1027 
   1028 	return 0;
   1029 }
   1030 
   1031 
   1032 int
   1033 auvia_trigger_output(void *addr, void *start, void *end,
   1034 	int blksize, void (*intr)(void *), void *arg,
   1035 	struct audio_params *param)
   1036 {
   1037 	struct auvia_softc *sc = addr;
   1038 	struct auvia_softc_chan *ch = &(sc->sc_play);
   1039 	struct auvia_dma *p;
   1040 
   1041 	for (p = sc->sc_dmas; p && p->addr != start; p = p->next)
   1042 		;
   1043 
   1044 	if (!p)
   1045 		panic("auvia_trigger_output: request with bad start "
   1046 			"address (%p)", start);
   1047 
   1048 	if (auvia_build_dma_ops(sc, ch, p, start, end, blksize)) {
   1049 		return 1;
   1050 	}
   1051 
   1052 	ch->sc_intr = intr;
   1053 	ch->sc_arg = arg;
   1054 
   1055 	CH_WRITE4(sc, ch, AUVIA_RP_DMAOPS_BASE,
   1056 		ch->sc_dma_ops_dma->map->dm_segs[0].ds_addr);
   1057 
   1058 	if (sc->sc_flags & AUVIA_FLAGS_VT8233) {
   1059 		if (ch->sc_base != VIA8233_MP_BASE) {
   1060 			CH_WRITE1(sc, ch, VIA8233_RP_DXS_LVOL, 0);
   1061 			CH_WRITE1(sc, ch, VIA8233_RP_DXS_RVOL, 0);
   1062 		}
   1063 		CH_WRITE1(sc, ch, AUVIA_RP_CONTROL,
   1064 			AUVIA_RPCTRL_START | AUVIA_RPCTRL_AUTOSTART |
   1065 			AUVIA_RPCTRL_STOP  | AUVIA_RPCTRL_EOL | AUVIA_RPCTRL_FLAG);
   1066 	} else {
   1067 		CH_WRITE1(sc, ch, AUVIA_RP_MODE, ch->sc_reg);
   1068 		CH_WRITE1(sc, ch, AUVIA_RP_CONTROL, AUVIA_RPCTRL_START);
   1069 	}
   1070 
   1071 	return 0;
   1072 }
   1073 
   1074 
   1075 int
   1076 auvia_trigger_input(void *addr, void *start, void *end,
   1077 	int blksize, void (*intr)(void *), void *arg,
   1078 	struct audio_params *param)
   1079 {
   1080 	struct auvia_softc *sc = addr;
   1081 	struct auvia_softc_chan *ch = &(sc->sc_record);
   1082 	struct auvia_dma *p;
   1083 
   1084 	for (p = sc->sc_dmas; p && p->addr != start; p = p->next)
   1085 		;
   1086 
   1087 	if (!p)
   1088 		panic("auvia_trigger_input: request with bad start "
   1089 			"address (%p)", start);
   1090 
   1091 	if (auvia_build_dma_ops(sc, ch, p, start, end, blksize)) {
   1092 		return 1;
   1093 	}
   1094 
   1095 	ch->sc_intr = intr;
   1096 	ch->sc_arg = arg;
   1097 
   1098 	CH_WRITE4(sc, ch, AUVIA_RP_DMAOPS_BASE,
   1099 		  ch->sc_dma_ops_dma->map->dm_segs[0].ds_addr);
   1100 
   1101 	if (sc->sc_flags & AUVIA_FLAGS_VT8233) {
   1102 		CH_WRITE1(sc, ch, VIA8233_RP_DXS_LVOL, 0);
   1103 		CH_WRITE1(sc, ch, VIA8233_RP_DXS_RVOL, 0);
   1104 		CH_WRITE1(sc, ch, AUVIA_RP_CONTROL,
   1105 			AUVIA_RPCTRL_START | AUVIA_RPCTRL_AUTOSTART |
   1106 			AUVIA_RPCTRL_STOP  | AUVIA_RPCTRL_EOL | AUVIA_RPCTRL_FLAG);
   1107 	} else {
   1108 		CH_WRITE1(sc, ch, AUVIA_RP_MODE, ch->sc_reg);
   1109 		CH_WRITE1(sc, ch, AUVIA_RP_CONTROL, AUVIA_RPCTRL_START);
   1110 	}
   1111 
   1112 	return 0;
   1113 }
   1114 
   1115 
   1116 int
   1117 auvia_intr(void *arg)
   1118 {
   1119 	struct auvia_softc *sc = arg;
   1120 	struct auvia_softc_chan *ch;
   1121 	u_int8_t r;
   1122 	int rval;
   1123 
   1124 	rval = 0;
   1125 
   1126 	ch = &sc->sc_record;
   1127 	r = CH_READ1(sc, ch, AUVIA_RP_STAT);
   1128 	if (r & AUVIA_RPSTAT_INTR) {
   1129 		if (sc->sc_record.sc_intr)
   1130 			sc->sc_record.sc_intr(sc->sc_record.sc_arg);
   1131 
   1132 		/* clear interrupts */
   1133 		CH_WRITE1(sc, ch, AUVIA_RP_STAT, AUVIA_RPSTAT_INTR);
   1134 		rval = 1;
   1135 	}
   1136 
   1137 	ch = &sc->sc_play;
   1138 	r = CH_READ1(sc, ch, AUVIA_RP_STAT);
   1139 	if (r & AUVIA_RPSTAT_INTR) {
   1140 		if (sc->sc_play.sc_intr)
   1141 			sc->sc_play.sc_intr(sc->sc_play.sc_arg);
   1142 
   1143 		/* clear interrupts */
   1144 		CH_WRITE1(sc, ch, AUVIA_RP_STAT, AUVIA_RPSTAT_INTR);
   1145 		rval = 1;
   1146 	}
   1147 
   1148 	return rval;
   1149 }
   1150 
   1151 void
   1152 auvia_powerhook(int why, void *addr)
   1153 {
   1154 	struct auvia_softc *sc = (struct auvia_softc *)addr;
   1155 
   1156 	switch (why) {
   1157 	case PWR_SUSPEND:
   1158 	case PWR_STANDBY:
   1159 		/* Power down */
   1160 		sc->sc_suspend = why;
   1161 		break;
   1162 
   1163 	case PWR_RESUME:
   1164 		/* Wake up */
   1165 		if (sc->sc_suspend == PWR_RESUME) {
   1166 			printf("%s: resume without suspend.\n",
   1167 			    sc->sc_dev.dv_xname);
   1168 			sc->sc_suspend = why;
   1169 			return;
   1170 		}
   1171 		sc->sc_suspend = why;
   1172 		auvia_reset_codec(sc);
   1173 		DELAY(1000);
   1174 		(sc->codec_if->vtbl->restore_ports)(sc->codec_if);
   1175 		break;
   1176 
   1177 	case PWR_SOFTSUSPEND:
   1178 	case PWR_SOFTSTANDBY:
   1179 	case PWR_SOFTRESUME:
   1180 		break;
   1181 	}
   1182 }
   1183