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auvia.c revision 1.53
      1 /*	$NetBSD: auvia.c,v 1.53 2005/11/28 19:00:49 rpaulo 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 1.53 2005/11/28 19:00:49 rpaulo 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 	uint32_t ptr;
     82 	uint32_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 static int	auvia_match(struct device *, struct cfdata *, void *);
     90 static void	auvia_attach(struct device *, struct device *, void *);
     91 static int	auvia_query_encoding(void *, struct audio_encoding *);
     92 static void	auvia_set_params_sub(struct auvia_softc *,
     93 				     struct auvia_softc_chan *,
     94 				     const audio_params_t *);
     95 static int	auvia_set_params(void *, int, int, audio_params_t *,
     96 				 audio_params_t *, stream_filter_list_t *,
     97 				 stream_filter_list_t *);
     98 static int	auvia_round_blocksize(void *, int, int, const audio_params_t *);
     99 static int	auvia_halt_output(void *);
    100 static int	auvia_halt_input(void *);
    101 static int	auvia_getdev(void *, struct audio_device *);
    102 static int	auvia_set_port(void *, mixer_ctrl_t *);
    103 static int	auvia_get_port(void *, mixer_ctrl_t *);
    104 static int	auvia_query_devinfo(void *, mixer_devinfo_t *);
    105 static void *	auvia_malloc(void *, int, size_t, struct malloc_type *, int);
    106 static void	auvia_free(void *, void *, struct malloc_type *);
    107 static size_t	auvia_round_buffersize(void *, int, size_t);
    108 static paddr_t	auvia_mappage(void *, void *, off_t, int);
    109 static int	auvia_get_props(void *);
    110 static int	auvia_build_dma_ops(struct auvia_softc *,
    111 				    struct auvia_softc_chan *,
    112 				    struct auvia_dma *, void *, void *, int);
    113 static int	auvia_trigger_output(void *, void *, void *, int,
    114 				     void (*)(void *), void *,
    115 				     const audio_params_t *);
    116 static int	auvia_trigger_input(void *, void *, void *, int,
    117 				    void (*)(void *), void *,
    118 				    const audio_params_t *);
    119 static void	auvia_powerhook(int, void *);
    120 static int	auvia_intr(void *);
    121 
    122 CFATTACH_DECL(auvia, sizeof (struct auvia_softc),
    123     auvia_match, auvia_attach, NULL, NULL);
    124 
    125 /* VIA VT823xx revision number */
    126 #define VIA_REV_8233PRE	0x10
    127 #define VIA_REV_8233C	0x20
    128 #define VIA_REV_8233	0x30
    129 #define VIA_REV_8233A	0x40
    130 #define VIA_REV_8235	0x50
    131 #define VIA_REV_8237	0x60
    132 
    133 #define AUVIA_PCICONF_JUNK	0x40
    134 #define		AUVIA_PCICONF_ENABLES	 0x00FF0000	/* reg 42 mask */
    135 #define		AUVIA_PCICONF_ACLINKENAB 0x00008000	/* ac link enab */
    136 #define		AUVIA_PCICONF_ACNOTRST	 0x00004000	/* ~(ac reset) */
    137 #define		AUVIA_PCICONF_ACSYNC	 0x00002000	/* ac sync */
    138 #define		AUVIA_PCICONF_ACVSR	 0x00000800	/* var. samp. rate */
    139 #define		AUVIA_PCICONF_ACSGD	 0x00000400	/* SGD enab */
    140 #define		AUVIA_PCICONF_ACFM	 0x00000200	/* FM enab */
    141 #define		AUVIA_PCICONF_ACSB	 0x00000100	/* SB enab */
    142 #define		AUVIA_PCICONF_PRIVALID	 0x00000001	/* primary codec rdy */
    143 
    144 #define	AUVIA_PLAY_BASE			0x00
    145 #define	AUVIA_RECORD_BASE		0x10
    146 
    147 /* *_RP_* are offsets from AUVIA_PLAY_BASE or AUVIA_RECORD_BASE */
    148 #define	AUVIA_RP_STAT			0x00
    149 #define		AUVIA_RPSTAT_INTR		0x03
    150 #define	AUVIA_RP_CONTROL		0x01
    151 #define		AUVIA_RPCTRL_START		0x80
    152 #define		AUVIA_RPCTRL_TERMINATE		0x40
    153 #define		AUVIA_RPCTRL_AUTOSTART		0x20
    154 /* The following are 8233 specific */
    155 #define		AUVIA_RPCTRL_STOP		0x04
    156 #define		AUVIA_RPCTRL_EOL		0x02
    157 #define		AUVIA_RPCTRL_FLAG		0x01
    158 #define	AUVIA_RP_MODE			0x02		/* 82c686 specific */
    159 #define		AUVIA_RPMODE_INTR_FLAG		0x01
    160 #define		AUVIA_RPMODE_INTR_EOL		0x02
    161 #define		AUVIA_RPMODE_STEREO		0x10
    162 #define		AUVIA_RPMODE_16BIT		0x20
    163 #define		AUVIA_RPMODE_AUTOSTART		0x80
    164 #define	AUVIA_RP_DMAOPS_BASE		0x04
    165 
    166 #define	VIA8233_RP_DXS_LVOL		0x02
    167 #define	VIA8233_RP_DXS_RVOL		0x03
    168 #define	VIA8233_RP_RATEFMT		0x08
    169 #define		VIA8233_RATEFMT_48K		0xfffff
    170 #define		VIA8233_RATEFMT_STEREO		0x00100000
    171 #define		VIA8233_RATEFMT_16BIT		0x00200000
    172 
    173 #define	VIA_RP_DMAOPS_COUNT		0x0c
    174 
    175 #define VIA8233_MP_BASE			0x40
    176 	/* STAT, CONTROL, DMAOPS_BASE, DMAOPS_COUNT are valid */
    177 #define VIA8233_OFF_MP_FORMAT		0x02
    178 #define		VIA8233_MP_FORMAT_8BIT		0x00
    179 #define		VIA8233_MP_FORMAT_16BIT		0x80
    180 #define		VIA8233_MP_FORMAT_CHANNLE_MASK	0x70 /* 1, 2, 4, 6 */
    181 #define VIA8233_OFF_MP_SCRATCH		0x03
    182 #define VIA8233_OFF_MP_STOP		0x08
    183 
    184 #define	AUVIA_CODEC_CTL			0x80
    185 #define		AUVIA_CODEC_READ		0x00800000
    186 #define		AUVIA_CODEC_BUSY		0x01000000
    187 #define		AUVIA_CODEC_PRIVALID		0x02000000
    188 #define		AUVIA_CODEC_INDEX(x)		((x)<<16)
    189 
    190 #define CH_WRITE1(sc, ch, off, v)	\
    191 	bus_space_write_1((sc)->sc_iot,	(sc)->sc_ioh, (ch)->sc_base + (off), v)
    192 #define CH_WRITE4(sc, ch, off, v)	\
    193 	bus_space_write_4((sc)->sc_iot,	(sc)->sc_ioh, (ch)->sc_base + (off), v)
    194 #define CH_READ1(sc, ch, off)		\
    195 	bus_space_read_1((sc)->sc_iot, (sc)->sc_ioh, (ch)->sc_base + (off))
    196 #define CH_READ4(sc, ch, off)		\
    197 	bus_space_read_4((sc)->sc_iot, (sc)->sc_ioh, (ch)->sc_base + (off))
    198 
    199 #define TIMEOUT	50
    200 
    201 static const struct audio_hw_if auvia_hw_if = {
    202 	NULL, /* open */
    203 	NULL, /* close */
    204 	NULL, /* drain */
    205 	auvia_query_encoding,
    206 	auvia_set_params,
    207 	auvia_round_blocksize,
    208 	NULL, /* commit_settings */
    209 	NULL, /* init_output */
    210 	NULL, /* init_input */
    211 	NULL, /* start_output */
    212 	NULL, /* start_input */
    213 	auvia_halt_output,
    214 	auvia_halt_input,
    215 	NULL, /* speaker_ctl */
    216 	auvia_getdev,
    217 	NULL, /* setfd */
    218 	auvia_set_port,
    219 	auvia_get_port,
    220 	auvia_query_devinfo,
    221 	auvia_malloc,
    222 	auvia_free,
    223 	auvia_round_buffersize,
    224 	auvia_mappage,
    225 	auvia_get_props,
    226 	auvia_trigger_output,
    227 	auvia_trigger_input,
    228 	NULL, /* dev_ioctl */
    229 };
    230 
    231 #define AUVIA_FORMATS_4CH_16	2
    232 #define AUVIA_FORMATS_6CH_16	3
    233 #define AUVIA_FORMATS_4CH_8	6
    234 #define AUVIA_FORMATS_6CH_8	7
    235 static const struct audio_format auvia_formats[AUVIA_NFORMATS] = {
    236 	{NULL, AUMODE_PLAY | AUMODE_RECORD, AUDIO_ENCODING_SLINEAR_LE, 16, 16,
    237 	 1, AUFMT_MONAURAL, 0, {8000, 48000}},
    238 	{NULL, AUMODE_PLAY | AUMODE_RECORD, AUDIO_ENCODING_SLINEAR_LE, 16, 16,
    239 	 2, AUFMT_STEREO, 0, {8000, 48000}},
    240 	{NULL, AUMODE_PLAY, AUDIO_ENCODING_SLINEAR_LE, 16, 16,
    241 	 4, AUFMT_SURROUND4, 0, {8000, 48000}},
    242 	{NULL, AUMODE_PLAY, AUDIO_ENCODING_SLINEAR_LE, 16, 16,
    243 	 6, AUFMT_DOLBY_5_1, 0, {8000, 48000}},
    244 	{NULL, AUMODE_PLAY | AUMODE_RECORD, AUDIO_ENCODING_ULINEAR_LE, 8, 8,
    245 	 1, AUFMT_MONAURAL, 0, {8000, 48000}},
    246 	{NULL, AUMODE_PLAY | AUMODE_RECORD, AUDIO_ENCODING_ULINEAR_LE, 8, 8,
    247 	 2, AUFMT_STEREO, 0, {8000, 48000}},
    248 	{NULL, AUMODE_PLAY, AUDIO_ENCODING_ULINEAR_LE, 8, 8,
    249 	 4, AUFMT_SURROUND4, 0, {8000, 48000}},
    250 	{NULL, AUMODE_PLAY, AUDIO_ENCODING_SLINEAR_LE, 8, 8,
    251 	 6, AUFMT_DOLBY_5_1, 0, {8000, 48000}},
    252 };
    253 
    254 static int	auvia_attach_codec(void *, struct ac97_codec_if *);
    255 static int	auvia_write_codec(void *, uint8_t, uint16_t);
    256 static int	auvia_read_codec(void *, uint8_t, uint16_t *);
    257 static int	auvia_reset_codec(void *);
    258 static int	auvia_waitready_codec(struct auvia_softc *sc);
    259 static int	auvia_waitvalid_codec(struct auvia_softc *sc);
    260 
    261 
    262 static int
    263 auvia_match(struct device *parent, struct cfdata *match, void *aux)
    264 {
    265 	struct pci_attach_args *pa;
    266 
    267 	pa = (struct pci_attach_args *) aux;
    268 	if (PCI_VENDOR(pa->pa_id) != PCI_VENDOR_VIATECH)
    269 		return 0;
    270 	switch (PCI_PRODUCT(pa->pa_id)) {
    271 	case PCI_PRODUCT_VIATECH_VT82C686A_AC97:
    272 	case PCI_PRODUCT_VIATECH_VT8233_AC97:
    273 		break;
    274 	default:
    275 		return 0;
    276 	}
    277 
    278 	return 1;
    279 }
    280 
    281 static void
    282 auvia_attach(struct device *parent, struct device *self, void *aux)
    283 {
    284 	struct pci_attach_args *pa;
    285 	struct auvia_softc *sc;
    286 	const char *intrstr;
    287 	pci_chipset_tag_t pc;
    288 	pcitag_t pt;
    289 	pci_intr_handle_t ih;
    290 	bus_size_t iosize;
    291 	pcireg_t pr;
    292 	int r;
    293 	const char *revnum;	/* VT823xx revision number */
    294 
    295 	pa = aux;
    296 	sc = (struct auvia_softc *)self;
    297 	intrstr = NULL;
    298 	pc = pa->pa_pc;
    299 	pt = pa->pa_tag;
    300 	revnum = NULL;
    301 
    302 	aprint_naive(": Audio controller\n");
    303 
    304 	sc->sc_play.sc_base = AUVIA_PLAY_BASE;
    305 	sc->sc_record.sc_base = AUVIA_RECORD_BASE;
    306 	if (PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_VIATECH_VT8233_AC97) {
    307 		sc->sc_flags |= AUVIA_FLAGS_VT8233;
    308 		sc->sc_play.sc_base = VIA8233_MP_BASE;
    309 	}
    310 
    311 	if (pci_mapreg_map(pa, 0x10, PCI_MAPREG_TYPE_IO, 0, &sc->sc_iot,
    312 		&sc->sc_ioh, NULL, &iosize)) {
    313 		aprint_error(": can't map i/o space\n");
    314 		return;
    315 	}
    316 
    317 	sc->sc_dmat = pa->pa_dmat;
    318 	sc->sc_pc = pc;
    319 	sc->sc_pt = pt;
    320 
    321 	r = PCI_REVISION(pa->pa_class);
    322 	if (sc->sc_flags & AUVIA_FLAGS_VT8233) {
    323 		snprintf(sc->sc_revision, sizeof(sc->sc_revision), "0x%02X", r);
    324 		switch(r) {
    325 		case VIA_REV_8233PRE:
    326 			/* same as 8233, but should not be in the market */
    327 			revnum = "3-Pre";
    328 			break;
    329 		case VIA_REV_8233C:
    330 			/* 2 rec, 4 pb, 1 multi-pb */
    331 			revnum = "3C";
    332 			break;
    333 		case VIA_REV_8233:
    334 			/* 2 rec, 4 pb, 1 multi-pb, spdif */
    335 			revnum = "3";
    336 			break;
    337 		case VIA_REV_8233A:
    338 			/* 1 rec, 1 multi-pb, spdif */
    339 			revnum = "3A";
    340 			break;
    341 		default:
    342 			break;
    343 		}
    344 		if (r >= VIA_REV_8237)
    345 			revnum = "7";
    346 		else if (r >= VIA_REV_8235) /* 2 rec, 4 pb, 1 multi-pb, spdif */
    347 			revnum = "5";
    348 		aprint_normal(": VIA Technologies VT823%s AC'97 Audio "
    349 		    "(rev %s)\n", revnum, sc->sc_revision);
    350 	} else {
    351 		sc->sc_revision[1] = '\0';
    352 		if (r == 0x20) {
    353 			sc->sc_revision[0] = 'H';
    354 		} else if ((r >= 0x10) && (r <= 0x14)) {
    355 			sc->sc_revision[0] = 'A' + (r - 0x10);
    356 		} else {
    357 			snprintf(sc->sc_revision, sizeof(sc->sc_revision),
    358 			    "0x%02X", r);
    359 		}
    360 
    361 		aprint_normal(": VIA Technologies VT82C686A AC'97 Audio "
    362 		    "(rev %s)\n", sc->sc_revision);
    363 	}
    364 
    365 	if (pci_intr_map(pa, &ih)) {
    366 		aprint_error(": couldn't map interrupt\n");
    367 		bus_space_unmap(sc->sc_iot, sc->sc_ioh, iosize);
    368 		return;
    369 	}
    370 	intrstr = pci_intr_string(pc, ih);
    371 
    372 	sc->sc_ih = pci_intr_establish(pc, ih, IPL_AUDIO, auvia_intr, sc);
    373 	if (sc->sc_ih == NULL) {
    374 		aprint_error("%s: couldn't establish interrupt",
    375 		    sc->sc_dev.dv_xname);
    376 		if (intrstr != NULL)
    377 			aprint_normal(" at %s", intrstr);
    378 		aprint_normal("\n");
    379 		bus_space_unmap(sc->sc_iot, sc->sc_ioh, iosize);
    380 		return;
    381 	}
    382 
    383 	aprint_normal("%s: interrupting at %s\n", sc->sc_dev.dv_xname, intrstr);
    384 
    385 	/* disable SBPro compat & others */
    386 	pr = pci_conf_read(pc, pt, AUVIA_PCICONF_JUNK);
    387 
    388 	pr &= ~AUVIA_PCICONF_ENABLES; /* clear compat function enables */
    389 	/* XXX what to do about MIDI, FM, joystick? */
    390 
    391 	pr |= (AUVIA_PCICONF_ACLINKENAB | AUVIA_PCICONF_ACNOTRST
    392 		| AUVIA_PCICONF_ACVSR | AUVIA_PCICONF_ACSGD);
    393 
    394 	pr &= ~(AUVIA_PCICONF_ACFM | AUVIA_PCICONF_ACSB);
    395 
    396 	pci_conf_write(pc, pt, AUVIA_PCICONF_JUNK, pr);
    397 
    398 	sc->host_if.arg = sc;
    399 	sc->host_if.attach = auvia_attach_codec;
    400 	sc->host_if.read = auvia_read_codec;
    401 	sc->host_if.write = auvia_write_codec;
    402 	sc->host_if.reset = auvia_reset_codec;
    403 
    404 	if ((r = ac97_attach(&sc->host_if, self)) != 0) {
    405 		aprint_error("%s: can't attach codec (error 0x%X)\n",
    406 			sc->sc_dev.dv_xname, r);
    407 		pci_intr_disestablish(pc, sc->sc_ih);
    408 		bus_space_unmap(sc->sc_iot, sc->sc_ioh, iosize);
    409 		return;
    410 	}
    411 
    412 	/* setup audio_format */
    413 	memcpy(sc->sc_formats, auvia_formats, sizeof(auvia_formats));
    414 	if (sc->sc_play.sc_base != VIA8233_MP_BASE || !AC97_IS_4CH(sc->codec_if)) {
    415 		AUFMT_INVALIDATE(&sc->sc_formats[AUVIA_FORMATS_4CH_8]);
    416 		AUFMT_INVALIDATE(&sc->sc_formats[AUVIA_FORMATS_4CH_16]);
    417 	}
    418 	if (sc->sc_play.sc_base != VIA8233_MP_BASE || !AC97_IS_6CH(sc->codec_if)) {
    419 		AUFMT_INVALIDATE(&sc->sc_formats[AUVIA_FORMATS_6CH_8]);
    420 		AUFMT_INVALIDATE(&sc->sc_formats[AUVIA_FORMATS_6CH_16]);
    421 	}
    422 	if (AC97_IS_FIXED_RATE(sc->codec_if)) {
    423 		for (r = 0; r < AUVIA_NFORMATS; r++) {
    424 			sc->sc_formats[r].frequency_type = 1;
    425 			sc->sc_formats[r].frequency[0] = 48000;
    426 		}
    427 	}
    428 
    429 	if (0 != auconv_create_encodings(sc->sc_formats, AUVIA_NFORMATS,
    430 					 &sc->sc_encodings)) {
    431 		sc->codec_if->vtbl->detach(sc->codec_if);
    432 		pci_intr_disestablish(pc, sc->sc_ih);
    433 		bus_space_unmap(sc->sc_iot, sc->sc_ioh, iosize);
    434 		return;
    435 	}
    436 
    437 	/* Watch for power change */
    438 	sc->sc_suspend = PWR_RESUME;
    439 	sc->sc_powerhook = powerhook_establish(auvia_powerhook, sc);
    440 
    441 	audio_attach_mi(&auvia_hw_if, sc, &sc->sc_dev);
    442 	return;
    443 }
    444 
    445 static int
    446 auvia_attach_codec(void *addr, struct ac97_codec_if *cif)
    447 {
    448 	struct auvia_softc *sc;
    449 
    450 	sc = addr;
    451 	sc->codec_if = cif;
    452 	return 0;
    453 }
    454 
    455 static int
    456 auvia_reset_codec(void *addr)
    457 {
    458 	struct auvia_softc *sc;
    459 	pcireg_t r;
    460 	int i;
    461 
    462 	/* perform a codec cold reset */
    463 	sc = addr;
    464 	r = pci_conf_read(sc->sc_pc, sc->sc_pt, AUVIA_PCICONF_JUNK);
    465 
    466 	r &= ~AUVIA_PCICONF_ACNOTRST;	/* enable RESET (active low) */
    467 	pci_conf_write(sc->sc_pc, sc->sc_pt, AUVIA_PCICONF_JUNK, r);
    468 	delay(2);
    469 
    470 	r |= AUVIA_PCICONF_ACNOTRST;	/* disable RESET (inactive high) */
    471 	pci_conf_write(sc->sc_pc, sc->sc_pt, AUVIA_PCICONF_JUNK, r);
    472 	delay(200);
    473 
    474 	for (i = 500000; i != 0 && !(pci_conf_read(sc->sc_pc, sc->sc_pt,
    475 		AUVIA_PCICONF_JUNK) & AUVIA_PCICONF_PRIVALID); i--)
    476 		DELAY(1);
    477 	if (i == 0) {
    478 		printf("%s: codec reset timed out\n", sc->sc_dev.dv_xname);
    479 		return ETIMEDOUT;
    480 	}
    481 	return 0;
    482 }
    483 
    484 static int
    485 auvia_waitready_codec(struct auvia_softc *sc)
    486 {
    487 	int i;
    488 
    489 	/* poll until codec not busy */
    490 	for (i = 0; (i < TIMEOUT) && (bus_space_read_4(sc->sc_iot, sc->sc_ioh,
    491 		AUVIA_CODEC_CTL) & AUVIA_CODEC_BUSY); i++)
    492 		delay(1);
    493 	if (i >= TIMEOUT) {
    494 		printf("%s: codec busy\n", sc->sc_dev.dv_xname);
    495 		return 1;
    496 	}
    497 
    498 	return 0;
    499 }
    500 
    501 static int
    502 auvia_waitvalid_codec(struct auvia_softc *sc)
    503 {
    504 	int i;
    505 
    506 	/* poll until codec valid */
    507 	for (i = 0; (i < TIMEOUT) && !(bus_space_read_4(sc->sc_iot, sc->sc_ioh,
    508 		AUVIA_CODEC_CTL) & AUVIA_CODEC_PRIVALID); i++)
    509 			delay(1);
    510 	if (i >= TIMEOUT) {
    511 		printf("%s: codec invalid\n", sc->sc_dev.dv_xname);
    512 		return 1;
    513 	}
    514 
    515 	return 0;
    516 }
    517 
    518 static int
    519 auvia_write_codec(void *addr, u_int8_t reg, u_int16_t val)
    520 {
    521 	struct auvia_softc *sc;
    522 
    523 	sc = addr;
    524 	if (auvia_waitready_codec(sc))
    525 		return 1;
    526 
    527 	bus_space_write_4(sc->sc_iot, sc->sc_ioh, AUVIA_CODEC_CTL,
    528 		AUVIA_CODEC_PRIVALID | AUVIA_CODEC_INDEX(reg) | val);
    529 
    530 	return 0;
    531 }
    532 
    533 static int
    534 auvia_read_codec(void *addr, u_int8_t reg, u_int16_t *val)
    535 {
    536 	struct auvia_softc *sc;
    537 
    538 	sc = addr;
    539 	if (auvia_waitready_codec(sc))
    540 		return 1;
    541 
    542 	bus_space_write_4(sc->sc_iot, sc->sc_ioh, AUVIA_CODEC_CTL,
    543 		AUVIA_CODEC_PRIVALID | AUVIA_CODEC_READ | AUVIA_CODEC_INDEX(reg));
    544 
    545 	if (auvia_waitready_codec(sc))
    546 		return 1;
    547 
    548 	if (auvia_waitvalid_codec(sc))
    549 		return 1;
    550 
    551 	*val = bus_space_read_2(sc->sc_iot, sc->sc_ioh, AUVIA_CODEC_CTL);
    552 
    553 	return 0;
    554 }
    555 
    556 static int
    557 auvia_query_encoding(void *addr, struct audio_encoding *fp)
    558 {
    559 	struct auvia_softc *sc;
    560 
    561 	sc = (struct auvia_softc *)addr;
    562 	return auconv_query_encoding(sc->sc_encodings, fp);
    563 }
    564 
    565 static void
    566 auvia_set_params_sub(struct auvia_softc *sc, struct auvia_softc_chan *ch,
    567 		     const audio_params_t *p)
    568 {
    569 	uint32_t v;
    570 	uint16_t regval;
    571 
    572 	if (!(sc->sc_flags & AUVIA_FLAGS_VT8233)) {
    573 		regval = (p->channels == 2 ? AUVIA_RPMODE_STEREO : 0)
    574 			| (p->precision  == 16 ?
    575 				AUVIA_RPMODE_16BIT : 0)
    576 			| AUVIA_RPMODE_INTR_FLAG | AUVIA_RPMODE_INTR_EOL
    577 			| AUVIA_RPMODE_AUTOSTART;
    578 		ch->sc_reg = regval;
    579 	} else if (ch->sc_base != VIA8233_MP_BASE) {
    580 		v = CH_READ4(sc, ch, VIA8233_RP_RATEFMT);
    581 		v &= ~(VIA8233_RATEFMT_48K | VIA8233_RATEFMT_STEREO
    582 			| VIA8233_RATEFMT_16BIT);
    583 
    584 		v |= VIA8233_RATEFMT_48K * (p->sample_rate / 20)
    585 			/ (48000 / 20);
    586 		if (p->channels == 2)
    587 			v |= VIA8233_RATEFMT_STEREO;
    588 		if (p->precision == 16)
    589 			v |= VIA8233_RATEFMT_16BIT;
    590 
    591 		CH_WRITE4(sc, ch, VIA8233_RP_RATEFMT, v);
    592 	} else {
    593 		static const u_int32_t slottab[7] =
    594 			{ 0, 0xff000011, 0xff000021, 0,
    595 			  0xff004321, 0, 0xff436521};
    596 
    597 		regval = (p->precision == 16
    598 			? VIA8233_MP_FORMAT_16BIT : VIA8233_MP_FORMAT_8BIT)
    599 			| (p->channels << 4);
    600 		CH_WRITE1(sc, ch, VIA8233_OFF_MP_FORMAT, regval);
    601 		CH_WRITE4(sc, ch, VIA8233_OFF_MP_STOP, slottab[p->channels]);
    602 	}
    603 }
    604 
    605 static int
    606 auvia_set_params(void *addr, int setmode, int usemode,
    607 		 audio_params_t *play, audio_params_t *rec,
    608 		 stream_filter_list_t *pfil, stream_filter_list_t *rfil)
    609 {
    610 	struct auvia_softc *sc;
    611 	struct auvia_softc_chan *ch;
    612 	struct audio_params *p;
    613 	struct ac97_codec_if* codec;
    614 	stream_filter_list_t *fil;
    615 	int reg, mode;
    616 	int index;
    617 
    618 	sc = addr;
    619 	codec = sc->codec_if;
    620 	/* for mode in (RECORD, PLAY) */
    621 	for (mode = AUMODE_RECORD; mode != -1;
    622 	     mode = mode == AUMODE_RECORD ? AUMODE_PLAY : -1) {
    623 		if ((setmode & mode) == 0)
    624 			continue;
    625 
    626 		if (mode == AUMODE_PLAY ) {
    627 			p = play;
    628 			ch = &sc->sc_play;
    629 			reg = AC97_REG_PCM_FRONT_DAC_RATE;
    630 			fil = pfil;
    631 		} else {
    632 			p = rec;
    633 			ch = &sc->sc_record;
    634 			reg = AC97_REG_PCM_LR_ADC_RATE;
    635 			fil = rfil;
    636 		}
    637 
    638 		if (p->sample_rate < 4000 || p->sample_rate > 48000 ||
    639 		    (p->precision != 8 && p->precision != 16))
    640 			return (EINVAL);
    641 		index = auconv_set_converter(sc->sc_formats, AUVIA_NFORMATS,
    642 					     mode, p, TRUE, fil);
    643 		if (index < 0)
    644 			return EINVAL;
    645 		if (fil->req_size > 0)
    646 			p = &fil->filters[0].param;
    647 		if (!AC97_IS_FIXED_RATE(codec)) {
    648 			if (codec->vtbl->set_rate(codec, reg, &p->sample_rate))
    649 				return EINVAL;
    650 			reg = AC97_REG_PCM_SURR_DAC_RATE;
    651 			if (p->channels >= 4
    652 			    && codec->vtbl->set_rate(codec, reg,
    653 						     &p->sample_rate))
    654 				return EINVAL;
    655 			reg = AC97_REG_PCM_LFE_DAC_RATE;
    656 			if (p->channels == 6
    657 			    && codec->vtbl->set_rate(codec, reg,
    658 						     &p->sample_rate))
    659 				return EINVAL;
    660 		}
    661 		auvia_set_params_sub(sc, ch, p);
    662 	}
    663 
    664 	return 0;
    665 }
    666 
    667 static int
    668 auvia_round_blocksize(void *addr, int blk,
    669 		      int mode, const audio_params_t *param)
    670 {
    671 	struct auvia_softc *sc;
    672 
    673 	sc = addr;
    674 	/* XXX VT823x might have the limitation of dma_ops size */
    675 	if (sc->sc_flags & AUVIA_FLAGS_VT8233 && blk < 288)
    676 		blk = 288;
    677 
    678 	return (blk & -32);
    679 }
    680 
    681 static int
    682 auvia_halt_output(void *addr)
    683 {
    684 	struct auvia_softc *sc;
    685 	struct auvia_softc_chan *ch;
    686 
    687 	sc = addr;
    688 	ch = &(sc->sc_play);
    689 	CH_WRITE1(sc, ch, AUVIA_RP_CONTROL, AUVIA_RPCTRL_TERMINATE);
    690 	ch->sc_intr = NULL;
    691 	return 0;
    692 }
    693 
    694 static int
    695 auvia_halt_input(void *addr)
    696 {
    697 	struct auvia_softc *sc;
    698 	struct auvia_softc_chan *ch;
    699 
    700 	sc = addr;
    701 	ch = &(sc->sc_record);
    702 	CH_WRITE1(sc, ch, AUVIA_RP_CONTROL, AUVIA_RPCTRL_TERMINATE);
    703 	ch->sc_intr = NULL;
    704 	return 0;
    705 }
    706 
    707 static int
    708 auvia_getdev(void *addr, struct audio_device *retp)
    709 {
    710 	struct auvia_softc *sc;
    711 
    712 	if (retp) {
    713 		sc = addr;
    714 		if (sc->sc_flags & AUVIA_FLAGS_VT8233) {
    715 			strncpy(retp->name, "VIA VT823x",
    716 				sizeof(retp->name));
    717 		} else {
    718 			strncpy(retp->name, "VIA VT82C686A",
    719 				sizeof(retp->name));
    720 		}
    721 		strncpy(retp->version, sc->sc_revision, sizeof(retp->version));
    722 		strncpy(retp->config, "auvia", sizeof(retp->config));
    723 	}
    724 
    725 	return 0;
    726 }
    727 
    728 static int
    729 auvia_set_port(void *addr, mixer_ctrl_t *cp)
    730 {
    731 	struct auvia_softc *sc;
    732 
    733 	sc = addr;
    734 	return sc->codec_if->vtbl->mixer_set_port(sc->codec_if, cp);
    735 }
    736 
    737 static int
    738 auvia_get_port(void *addr, mixer_ctrl_t *cp)
    739 {
    740 	struct auvia_softc *sc;
    741 
    742 	sc = addr;
    743 	return sc->codec_if->vtbl->mixer_get_port(sc->codec_if, cp);
    744 }
    745 
    746 static int
    747 auvia_query_devinfo(void *addr, mixer_devinfo_t *dip)
    748 {
    749 	struct auvia_softc *sc;
    750 
    751 	sc = addr;
    752 	return sc->codec_if->vtbl->query_devinfo(sc->codec_if, dip);
    753 }
    754 
    755 static void *
    756 auvia_malloc(void *addr, int direction, size_t size, struct malloc_type * pool,
    757     int flags)
    758 {
    759 	struct auvia_softc *sc;
    760 	struct auvia_dma *p;
    761 	int error;
    762 	int rseg;
    763 
    764 	p = malloc(sizeof(*p), pool, flags);
    765 	if (!p)
    766 		return 0;
    767 	sc = addr;
    768 	p->size = size;
    769 	if ((error = bus_dmamem_alloc(sc->sc_dmat, size, PAGE_SIZE, 0, &p->seg,
    770 				      1, &rseg, BUS_DMA_NOWAIT)) != 0) {
    771 		printf("%s: unable to allocate DMA, error = %d\n",
    772 		       sc->sc_dev.dv_xname, error);
    773 		goto fail_alloc;
    774 	}
    775 
    776 	if ((error = bus_dmamem_map(sc->sc_dmat, &p->seg, rseg, size, &p->addr,
    777 				    BUS_DMA_NOWAIT | BUS_DMA_COHERENT)) != 0) {
    778 		printf("%s: unable to map DMA, error = %d\n",
    779 		       sc->sc_dev.dv_xname, error);
    780 		goto fail_map;
    781 	}
    782 
    783 	if ((error = bus_dmamap_create(sc->sc_dmat, size, 1, size, 0,
    784 				       BUS_DMA_NOWAIT, &p->map)) != 0) {
    785 		printf("%s: unable to create DMA map, error = %d\n",
    786 		       sc->sc_dev.dv_xname, error);
    787 		goto fail_create;
    788 	}
    789 
    790 	if ((error = bus_dmamap_load(sc->sc_dmat, p->map, p->addr, size, NULL,
    791 				     BUS_DMA_NOWAIT)) != 0) {
    792 		printf("%s: unable to load DMA map, error = %d\n",
    793 		       sc->sc_dev.dv_xname, error);
    794 		goto fail_load;
    795 	}
    796 
    797 	p->next = sc->sc_dmas;
    798 	sc->sc_dmas = p;
    799 
    800 	return p->addr;
    801 
    802 
    803 fail_load:
    804 	bus_dmamap_destroy(sc->sc_dmat, p->map);
    805 fail_create:
    806 	bus_dmamem_unmap(sc->sc_dmat, p->addr, size);
    807 fail_map:
    808 	bus_dmamem_free(sc->sc_dmat, &p->seg, 1);
    809 fail_alloc:
    810 	free(p, pool);
    811 	return NULL;
    812 }
    813 
    814 static void
    815 auvia_free(void *addr, void *ptr, struct malloc_type *pool)
    816 {
    817 	struct auvia_softc *sc;
    818 	struct auvia_dma **pp, *p;
    819 
    820 	sc = addr;
    821 	for (pp = &(sc->sc_dmas); (p = *pp) != NULL; pp = &p->next)
    822 		if (p->addr == ptr) {
    823 			bus_dmamap_unload(sc->sc_dmat, p->map);
    824 			bus_dmamap_destroy(sc->sc_dmat, p->map);
    825 			bus_dmamem_unmap(sc->sc_dmat, p->addr, p->size);
    826 			bus_dmamem_free(sc->sc_dmat, &p->seg, 1);
    827 
    828 			*pp = p->next;
    829 			free(p, pool);
    830 			return;
    831 		}
    832 
    833 	panic("auvia_free: trying to free unallocated memory");
    834 }
    835 
    836 static size_t
    837 auvia_round_buffersize(void *addr, int direction, size_t size)
    838 {
    839 
    840 	return size;
    841 }
    842 
    843 static paddr_t
    844 auvia_mappage(void *addr, void *mem, off_t off, int prot)
    845 {
    846 	struct auvia_softc *sc;
    847 	struct auvia_dma *p;
    848 
    849 	if (off < 0)
    850 		return -1;
    851 	sc = addr;
    852 	for (p = sc->sc_dmas; p && p->addr != mem; p = p->next)
    853 		continue;
    854 
    855 	if (!p)
    856 		return -1;
    857 
    858 	return bus_dmamem_mmap(sc->sc_dmat, &p->seg, 1, off, prot,
    859 	    BUS_DMA_WAITOK);
    860 }
    861 
    862 static int
    863 auvia_get_props(void *addr)
    864 {
    865 	struct auvia_softc *sc;
    866 	int props;
    867 
    868 	props = AUDIO_PROP_INDEPENDENT | AUDIO_PROP_FULLDUPLEX;
    869 	sc = addr;
    870 	/*
    871 	 * Even if the codec is fixed-rate, set_param() succeeds for any sample
    872 	 * rate because of aurateconv.  Applications can't know what rate the
    873 	 * device can process in the case of mmap().
    874 	 */
    875 	if (!AC97_IS_FIXED_RATE(sc->codec_if))
    876 		props |= AUDIO_PROP_MMAP;
    877 	return props;
    878 }
    879 
    880 static int
    881 auvia_build_dma_ops(struct auvia_softc *sc, struct auvia_softc_chan *ch,
    882 	struct auvia_dma *p, void *start, void *end, int blksize)
    883 {
    884 	struct auvia_dma_op *op;
    885 	struct auvia_dma *dp;
    886 	bus_addr_t s;
    887 	size_t l;
    888 	int segs;
    889 
    890 	s = p->map->dm_segs[0].ds_addr;
    891 	l = ((char *)end - (char *)start);
    892 	segs = (l + blksize - 1) / blksize;
    893 
    894 	if (segs > (ch->sc_dma_op_count)) {
    895 		/* if old list was too small, free it */
    896 		if (ch->sc_dma_ops) {
    897 			auvia_free(sc, ch->sc_dma_ops, M_DEVBUF);
    898 		}
    899 
    900 		ch->sc_dma_ops = auvia_malloc(sc, 0,
    901 			sizeof(struct auvia_dma_op) * segs, M_DEVBUF, M_WAITOK);
    902 
    903 		if (ch->sc_dma_ops == NULL) {
    904 			printf("%s: couldn't build dmaops\n", sc->sc_dev.dv_xname);
    905 			return 1;
    906 		}
    907 
    908 		for (dp = sc->sc_dmas;
    909 		     dp && dp->addr != (void *)(ch->sc_dma_ops);
    910 		     dp = dp->next)
    911 			continue;
    912 
    913 		if (!dp)
    914 			panic("%s: build_dma_ops: where'd my memory go??? "
    915 				"address (%p)\n", sc->sc_dev.dv_xname,
    916 				ch->sc_dma_ops);
    917 
    918 		ch->sc_dma_op_count = segs;
    919 		ch->sc_dma_ops_dma = dp;
    920 	}
    921 
    922 	dp = ch->sc_dma_ops_dma;
    923 	op = ch->sc_dma_ops;
    924 
    925 	while (l) {
    926 		op->ptr = s;
    927 		l = l - blksize;
    928 		if (!l) {
    929 			/* if last block */
    930 			op->flags = AUVIA_DMAOP_EOL | blksize;
    931 		} else {
    932 			op->flags = AUVIA_DMAOP_FLAG | blksize;
    933 		}
    934 		s += blksize;
    935 		op++;
    936 	}
    937 
    938 	return 0;
    939 }
    940 
    941 
    942 static int
    943 auvia_trigger_output(void *addr, void *start, void *end,
    944 	int blksize, void (*intr)(void *), void *arg,
    945 	const audio_params_t *param)
    946 {
    947 	struct auvia_softc *sc;
    948 	struct auvia_softc_chan *ch;
    949 	struct auvia_dma *p;
    950 
    951 	sc = addr;
    952 	ch = &(sc->sc_play);
    953 	for (p = sc->sc_dmas; p && p->addr != start; p = p->next)
    954 		continue;
    955 
    956 	if (!p)
    957 		panic("auvia_trigger_output: request with bad start "
    958 			"address (%p)", start);
    959 
    960 	if (auvia_build_dma_ops(sc, ch, p, start, end, blksize)) {
    961 		return 1;
    962 	}
    963 
    964 	ch->sc_intr = intr;
    965 	ch->sc_arg = arg;
    966 
    967 	CH_WRITE4(sc, ch, AUVIA_RP_DMAOPS_BASE,
    968 		ch->sc_dma_ops_dma->map->dm_segs[0].ds_addr);
    969 
    970 	if (sc->sc_flags & AUVIA_FLAGS_VT8233) {
    971 		if (ch->sc_base != VIA8233_MP_BASE) {
    972 			CH_WRITE1(sc, ch, VIA8233_RP_DXS_LVOL, 0);
    973 			CH_WRITE1(sc, ch, VIA8233_RP_DXS_RVOL, 0);
    974 		}
    975 		CH_WRITE1(sc, ch, AUVIA_RP_CONTROL,
    976 			AUVIA_RPCTRL_START | AUVIA_RPCTRL_AUTOSTART |
    977 			AUVIA_RPCTRL_STOP  | AUVIA_RPCTRL_EOL | AUVIA_RPCTRL_FLAG);
    978 	} else {
    979 		CH_WRITE1(sc, ch, AUVIA_RP_MODE, ch->sc_reg);
    980 		CH_WRITE1(sc, ch, AUVIA_RP_CONTROL, AUVIA_RPCTRL_START);
    981 	}
    982 
    983 	return 0;
    984 }
    985 
    986 static int
    987 auvia_trigger_input(void *addr, void *start, void *end,
    988 	int blksize, void (*intr)(void *), void *arg,
    989 	const audio_params_t *param)
    990 {
    991 	struct auvia_softc *sc;
    992 	struct auvia_softc_chan *ch;
    993 	struct auvia_dma *p;
    994 
    995 	sc = addr;
    996 	ch = &(sc->sc_record);
    997 	for (p = sc->sc_dmas; p && p->addr != start; p = p->next)
    998 		continue;
    999 
   1000 	if (!p)
   1001 		panic("auvia_trigger_input: request with bad start "
   1002 			"address (%p)", start);
   1003 
   1004 	if (auvia_build_dma_ops(sc, ch, p, start, end, blksize)) {
   1005 		return 1;
   1006 	}
   1007 
   1008 	ch->sc_intr = intr;
   1009 	ch->sc_arg = arg;
   1010 
   1011 	CH_WRITE4(sc, ch, AUVIA_RP_DMAOPS_BASE,
   1012 		  ch->sc_dma_ops_dma->map->dm_segs[0].ds_addr);
   1013 
   1014 	if (sc->sc_flags & AUVIA_FLAGS_VT8233) {
   1015 		CH_WRITE1(sc, ch, VIA8233_RP_DXS_LVOL, 0);
   1016 		CH_WRITE1(sc, ch, VIA8233_RP_DXS_RVOL, 0);
   1017 		CH_WRITE1(sc, ch, AUVIA_RP_CONTROL,
   1018 			AUVIA_RPCTRL_START | AUVIA_RPCTRL_AUTOSTART |
   1019 			AUVIA_RPCTRL_STOP  | AUVIA_RPCTRL_EOL | AUVIA_RPCTRL_FLAG);
   1020 	} else {
   1021 		CH_WRITE1(sc, ch, AUVIA_RP_MODE, ch->sc_reg);
   1022 		CH_WRITE1(sc, ch, AUVIA_RP_CONTROL, AUVIA_RPCTRL_START);
   1023 	}
   1024 
   1025 	return 0;
   1026 }
   1027 
   1028 static int
   1029 auvia_intr(void *arg)
   1030 {
   1031 	struct auvia_softc *sc;
   1032 	struct auvia_softc_chan *ch;
   1033 	u_int8_t r;
   1034 	int rval;
   1035 
   1036 	sc = arg;
   1037 	rval = 0;
   1038 
   1039 	ch = &sc->sc_record;
   1040 	r = CH_READ1(sc, ch, AUVIA_RP_STAT);
   1041 	if (r & AUVIA_RPSTAT_INTR) {
   1042 		if (sc->sc_record.sc_intr)
   1043 			sc->sc_record.sc_intr(sc->sc_record.sc_arg);
   1044 
   1045 		/* clear interrupts */
   1046 		CH_WRITE1(sc, ch, AUVIA_RP_STAT, AUVIA_RPSTAT_INTR);
   1047 		rval = 1;
   1048 	}
   1049 
   1050 	ch = &sc->sc_play;
   1051 	r = CH_READ1(sc, ch, AUVIA_RP_STAT);
   1052 	if (r & AUVIA_RPSTAT_INTR) {
   1053 		if (sc->sc_play.sc_intr)
   1054 			sc->sc_play.sc_intr(sc->sc_play.sc_arg);
   1055 
   1056 		/* clear interrupts */
   1057 		CH_WRITE1(sc, ch, AUVIA_RP_STAT, AUVIA_RPSTAT_INTR);
   1058 		rval = 1;
   1059 	}
   1060 
   1061 	return rval;
   1062 }
   1063 
   1064 static void
   1065 auvia_powerhook(int why, void *addr)
   1066 {
   1067 	struct auvia_softc *sc;
   1068 
   1069 	sc = addr;
   1070 	switch (why) {
   1071 	case PWR_SUSPEND:
   1072 	case PWR_STANDBY:
   1073 		/* Power down */
   1074 		sc->sc_suspend = why;
   1075 		break;
   1076 
   1077 	case PWR_RESUME:
   1078 		/* Wake up */
   1079 		if (sc->sc_suspend == PWR_RESUME) {
   1080 			printf("%s: resume without suspend.\n",
   1081 			    sc->sc_dev.dv_xname);
   1082 			sc->sc_suspend = why;
   1083 			return;
   1084 		}
   1085 		sc->sc_suspend = why;
   1086 		auvia_reset_codec(sc);
   1087 		DELAY(1000);
   1088 		(sc->codec_if->vtbl->restore_ports)(sc->codec_if);
   1089 		break;
   1090 
   1091 	case PWR_SOFTSUSPEND:
   1092 	case PWR_SOFTSTANDBY:
   1093 	case PWR_SOFTRESUME:
   1094 		break;
   1095 	}
   1096 }
   1097