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auvia.c revision 1.49
      1 /*	$NetBSD: auvia.c,v 1.49 2004/11/16 17:15:01 xtraeme 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 1.49 2004/11/16 17:15:01 xtraeme 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 #define AUVIA_FORMATS_4CH_16	2
    228 #define AUVIA_FORMATS_6CH_16	3
    229 #define AUVIA_FORMATS_4CH_8	6
    230 #define AUVIA_FORMATS_6CH_8	7
    231 static const struct audio_format auvia_formats[AUVIA_NFORMATS] = {
    232 	{NULL, AUMODE_PLAY | AUMODE_RECORD, AUDIO_ENCODING_SLINEAR_LE, 16, 16,
    233 	 1, AUFMT_MONAURAL, 0, {8000, 48000}},
    234 	{NULL, AUMODE_PLAY | AUMODE_RECORD, AUDIO_ENCODING_SLINEAR_LE, 16, 16,
    235 	 2, AUFMT_STEREO, 0, {8000, 48000}},
    236 	{NULL, AUMODE_PLAY, AUDIO_ENCODING_SLINEAR_LE, 16, 16,
    237 	 4, AUFMT_SURROUND4, 0, {8000, 48000}},
    238 	{NULL, AUMODE_PLAY, AUDIO_ENCODING_SLINEAR_LE, 16, 16,
    239 	 6, AUFMT_DOLBY_5_1, 0, {8000, 48000}},
    240 	{NULL, AUMODE_PLAY | AUMODE_RECORD, AUDIO_ENCODING_ULINEAR_LE, 8, 8,
    241 	 1, AUFMT_MONAURAL, 0, {8000, 48000}},
    242 	{NULL, AUMODE_PLAY | AUMODE_RECORD, AUDIO_ENCODING_ULINEAR_LE, 8, 8,
    243 	 2, AUFMT_STEREO, 0, {8000, 48000}},
    244 	{NULL, AUMODE_PLAY, AUDIO_ENCODING_ULINEAR_LE, 8, 8,
    245 	 4, AUFMT_SURROUND4, 0, {8000, 48000}},
    246 	{NULL, AUMODE_PLAY, AUDIO_ENCODING_SLINEAR_LE, 8, 8,
    247 	 6, AUFMT_DOLBY_5_1, 0, {8000, 48000}},
    248 };
    249 
    250 int	auvia_attach_codec(void *, struct ac97_codec_if *);
    251 int	auvia_write_codec(void *, u_int8_t, u_int16_t);
    252 int	auvia_read_codec(void *, u_int8_t, u_int16_t *);
    253 int	auvia_reset_codec(void *);
    254 int	auvia_waitready_codec(struct auvia_softc *sc);
    255 int	auvia_waitvalid_codec(struct auvia_softc *sc);
    256 
    257 
    258 int
    259 auvia_match(struct device *parent, struct cfdata *match, void *aux)
    260 {
    261 	struct pci_attach_args *pa = (struct pci_attach_args *) aux;
    262 
    263 	if (PCI_VENDOR(pa->pa_id) != PCI_VENDOR_VIATECH)
    264 		return 0;
    265 	switch (PCI_PRODUCT(pa->pa_id)) {
    266 	case PCI_PRODUCT_VIATECH_VT82C686A_AC97:
    267 	case PCI_PRODUCT_VIATECH_VT8233_AC97:
    268 		break;
    269 	default:
    270 		return 0;
    271 	}
    272 
    273 	return 1;
    274 }
    275 
    276 
    277 void
    278 auvia_attach(struct device *parent, struct device *self, void *aux)
    279 {
    280 	struct pci_attach_args *pa = aux;
    281 	struct auvia_softc *sc = (struct auvia_softc *) self;
    282 	const char *intrstr = NULL;
    283 	pci_chipset_tag_t pc = pa->pa_pc;
    284 	pcitag_t pt = pa->pa_tag;
    285 	pci_intr_handle_t ih;
    286 	bus_size_t iosize;
    287 	pcireg_t pr;
    288 	int r;
    289 	const char *revnum = NULL; /* VT823xx revision number */
    290 
    291 	aprint_naive(": Audio controller\n");
    292 
    293 	sc->sc_play.sc_base = AUVIA_PLAY_BASE;
    294 	sc->sc_record.sc_base = AUVIA_RECORD_BASE;
    295 	if (PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_VIATECH_VT8233_AC97) {
    296 		sc->sc_flags |= AUVIA_FLAGS_VT8233;
    297 		sc->sc_play.sc_base = VIA8233_MP_BASE;
    298 	}
    299 
    300 	if (pci_mapreg_map(pa, 0x10, PCI_MAPREG_TYPE_IO, 0, &sc->sc_iot,
    301 		&sc->sc_ioh, NULL, &iosize)) {
    302 		aprint_error(": can't map i/o space\n");
    303 		return;
    304 	}
    305 
    306 	sc->sc_dmat = pa->pa_dmat;
    307 	sc->sc_pc = pc;
    308 	sc->sc_pt = pt;
    309 
    310 	r = PCI_REVISION(pa->pa_class);
    311 	if (sc->sc_flags & AUVIA_FLAGS_VT8233) {
    312 		snprintf(sc->sc_revision, sizeof(sc->sc_revision), "0x%02X", r);
    313 		switch(r) {
    314 		case VIA_REV_8233C:
    315 			/* 2 rec, 4 pb, 1 multi-pb */
    316 			revnum = "3C";
    317 			break;
    318 		case VIA_REV_8233:
    319 			/* 2 rec, 4 pb, 1 multi-pb, spdif */
    320 			revnum = "3";
    321 			break;
    322 		case VIA_REV_8233A:
    323 			/* 1 rec, 1 multi-pb, spdif */
    324 			revnum = "3A";
    325 			break;
    326 		default:
    327 			break;
    328 		}
    329 		if (r >= VIA_REV_8237)
    330 			revnum = "7";
    331 		else if (r >= VIA_REV_8235) /* 2 rec, 4 pb, 1 multi-pb, spdif */
    332 			revnum = "5";
    333 		aprint_normal(": VIA Technologies VT823%s AC'97 Audio "
    334 		    "(rev %s)\n", revnum, sc->sc_revision);
    335 	} else {
    336 		sc->sc_revision[1] = '\0';
    337 		if (r == 0x20) {
    338 			sc->sc_revision[0] = 'H';
    339 		} else if ((r >= 0x10) && (r <= 0x14)) {
    340 			sc->sc_revision[0] = 'A' + (r - 0x10);
    341 		} else {
    342 			snprintf(sc->sc_revision, sizeof(sc->sc_revision),
    343 			    "0x%02X", r);
    344 		}
    345 
    346 		aprint_normal(": VIA Technologies VT82C686A AC'97 Audio "
    347 		    "(rev %s)\n", sc->sc_revision);
    348 	}
    349 
    350 	if (pci_intr_map(pa, &ih)) {
    351 		aprint_error(": couldn't map interrupt\n");
    352 		bus_space_unmap(sc->sc_iot, sc->sc_ioh, iosize);
    353 		return;
    354 	}
    355 	intrstr = pci_intr_string(pc, ih);
    356 
    357 	sc->sc_ih = pci_intr_establish(pc, ih, IPL_AUDIO, auvia_intr, sc);
    358 	if (sc->sc_ih == NULL) {
    359 		aprint_error("%s: couldn't establish interrupt",
    360 		    sc->sc_dev.dv_xname);
    361 		if (intrstr != NULL)
    362 			aprint_normal(" at %s", intrstr);
    363 		aprint_normal("\n");
    364 		bus_space_unmap(sc->sc_iot, sc->sc_ioh, iosize);
    365 		return;
    366 	}
    367 
    368 	aprint_normal("%s: interrupting at %s\n", sc->sc_dev.dv_xname, intrstr);
    369 
    370 	/* disable SBPro compat & others */
    371 	pr = pci_conf_read(pc, pt, AUVIA_PCICONF_JUNK);
    372 
    373 	pr &= ~AUVIA_PCICONF_ENABLES; /* clear compat function enables */
    374 	/* XXX what to do about MIDI, FM, joystick? */
    375 
    376 	pr |= (AUVIA_PCICONF_ACLINKENAB | AUVIA_PCICONF_ACNOTRST
    377 		| AUVIA_PCICONF_ACVSR | AUVIA_PCICONF_ACSGD);
    378 
    379 	pr &= ~(AUVIA_PCICONF_ACFM | AUVIA_PCICONF_ACSB);
    380 
    381 	pci_conf_write(pc, pt, AUVIA_PCICONF_JUNK, pr);
    382 
    383 	sc->host_if.arg = sc;
    384 	sc->host_if.attach = auvia_attach_codec;
    385 	sc->host_if.read = auvia_read_codec;
    386 	sc->host_if.write = auvia_write_codec;
    387 	sc->host_if.reset = auvia_reset_codec;
    388 
    389 	if ((r = ac97_attach(&sc->host_if)) != 0) {
    390 		aprint_error("%s: can't attach codec (error 0x%X)\n",
    391 			sc->sc_dev.dv_xname, r);
    392 		pci_intr_disestablish(pc, sc->sc_ih);
    393 		bus_space_unmap(sc->sc_iot, sc->sc_ioh, iosize);
    394 		return;
    395 	}
    396 
    397 	/* setup audio_format */
    398 	memcpy(sc->sc_formats, auvia_formats, sizeof(auvia_formats));
    399 	if (sc->sc_play.sc_base != VIA8233_MP_BASE || !AC97_IS_4CH(sc->codec_if)) {
    400 		AUFMT_INVALIDATE(&sc->sc_formats[AUVIA_FORMATS_4CH_8]);
    401 		AUFMT_INVALIDATE(&sc->sc_formats[AUVIA_FORMATS_4CH_16]);
    402 	}
    403 	if (sc->sc_play.sc_base != VIA8233_MP_BASE || !AC97_IS_6CH(sc->codec_if)) {
    404 		AUFMT_INVALIDATE(&sc->sc_formats[AUVIA_FORMATS_6CH_8]);
    405 		AUFMT_INVALIDATE(&sc->sc_formats[AUVIA_FORMATS_6CH_16]);
    406 	}
    407 	if (AC97_IS_FIXED_RATE(sc->codec_if)) {
    408 		for (r = 0; r < AUVIA_NFORMATS; r++) {
    409 			sc->sc_formats[r].frequency_type = 1;
    410 			sc->sc_formats[r].frequency[0] = 48000;
    411 		}
    412 	}
    413 
    414 	if (0 != auconv_create_encodings(sc->sc_formats, AUVIA_NFORMATS,
    415 					 &sc->sc_encodings)) {
    416 		sc->codec_if->vtbl->detach(sc->codec_if);
    417 		pci_intr_disestablish(pc, sc->sc_ih);
    418 		bus_space_unmap(sc->sc_iot, sc->sc_ioh, iosize);
    419 		return;
    420 	}
    421 
    422 	/* Watch for power change */
    423 	sc->sc_suspend = PWR_RESUME;
    424 	sc->sc_powerhook = powerhook_establish(auvia_powerhook, sc);
    425 
    426 	audio_attach_mi(&auvia_hw_if, sc, &sc->sc_dev);
    427 	return;
    428 }
    429 
    430 
    431 int
    432 auvia_attach_codec(void *addr, struct ac97_codec_if *cif)
    433 {
    434 	struct auvia_softc *sc = addr;
    435 
    436 	sc->codec_if = cif;
    437 
    438 	return 0;
    439 }
    440 
    441 
    442 int
    443 auvia_reset_codec(void *addr)
    444 {
    445 	int i;
    446 	struct auvia_softc *sc = addr;
    447 	pcireg_t r;
    448 
    449 	/* perform a codec cold reset */
    450 
    451 	r = pci_conf_read(sc->sc_pc, sc->sc_pt, AUVIA_PCICONF_JUNK);
    452 
    453 	r &= ~AUVIA_PCICONF_ACNOTRST;	/* enable RESET (active low) */
    454 	pci_conf_write(sc->sc_pc, sc->sc_pt, AUVIA_PCICONF_JUNK, r);
    455 	delay(2);
    456 
    457 	r |= AUVIA_PCICONF_ACNOTRST;	/* disable RESET (inactive high) */
    458 	pci_conf_write(sc->sc_pc, sc->sc_pt, AUVIA_PCICONF_JUNK, r);
    459 	delay(200);
    460 
    461 	for (i = 500000; i != 0 && !(pci_conf_read(sc->sc_pc, sc->sc_pt,
    462 		AUVIA_PCICONF_JUNK) & AUVIA_PCICONF_PRIVALID); i--)
    463 		DELAY(1);
    464 	if (i == 0) {
    465 		printf("%s: codec reset timed out\n", sc->sc_dev.dv_xname);
    466 		return ETIMEDOUT;
    467 	}
    468 	return 0;
    469 }
    470 
    471 
    472 int
    473 auvia_waitready_codec(struct auvia_softc *sc)
    474 {
    475 	int i;
    476 
    477 	/* poll until codec not busy */
    478 	for (i = 0; (i < TIMEOUT) && (bus_space_read_4(sc->sc_iot, sc->sc_ioh,
    479 		AUVIA_CODEC_CTL) & AUVIA_CODEC_BUSY); i++)
    480 		delay(1);
    481 	if (i >= TIMEOUT) {
    482 		printf("%s: codec busy\n", sc->sc_dev.dv_xname);
    483 		return 1;
    484 	}
    485 
    486 	return 0;
    487 }
    488 
    489 
    490 int
    491 auvia_waitvalid_codec(struct auvia_softc *sc)
    492 {
    493 	int i;
    494 
    495 	/* poll until codec valid */
    496 	for (i = 0; (i < TIMEOUT) && !(bus_space_read_4(sc->sc_iot, sc->sc_ioh,
    497 		AUVIA_CODEC_CTL) & AUVIA_CODEC_PRIVALID); i++)
    498 			delay(1);
    499 	if (i >= TIMEOUT) {
    500 		printf("%s: codec invalid\n", sc->sc_dev.dv_xname);
    501 		return 1;
    502 	}
    503 
    504 	return 0;
    505 }
    506 
    507 
    508 int
    509 auvia_write_codec(void *addr, u_int8_t reg, u_int16_t val)
    510 {
    511 	struct auvia_softc *sc = addr;
    512 
    513 	if (auvia_waitready_codec(sc))
    514 		return 1;
    515 
    516 	bus_space_write_4(sc->sc_iot, sc->sc_ioh, AUVIA_CODEC_CTL,
    517 		AUVIA_CODEC_PRIVALID | AUVIA_CODEC_INDEX(reg) | val);
    518 
    519 	return 0;
    520 }
    521 
    522 
    523 int
    524 auvia_read_codec(void *addr, u_int8_t reg, u_int16_t *val)
    525 {
    526 	struct auvia_softc *sc = addr;
    527 
    528 	if (auvia_waitready_codec(sc))
    529 		return 1;
    530 
    531 	bus_space_write_4(sc->sc_iot, sc->sc_ioh, AUVIA_CODEC_CTL,
    532 		AUVIA_CODEC_PRIVALID | AUVIA_CODEC_READ | AUVIA_CODEC_INDEX(reg));
    533 
    534 	if (auvia_waitready_codec(sc))
    535 		return 1;
    536 
    537 	if (auvia_waitvalid_codec(sc))
    538 		return 1;
    539 
    540 	*val = bus_space_read_2(sc->sc_iot, sc->sc_ioh, AUVIA_CODEC_CTL);
    541 
    542 	return 0;
    543 }
    544 
    545 
    546 int
    547 auvia_open(void *addr, int flags)
    548 {
    549 	return 0;
    550 }
    551 
    552 
    553 void
    554 auvia_close(void *addr)
    555 {
    556 }
    557 
    558 
    559 int
    560 auvia_query_encoding(void *addr, struct audio_encoding *fp)
    561 {
    562 	struct auvia_softc *sc;
    563 
    564 	sc = (struct auvia_softc *)addr;
    565 	return auconv_query_encoding(sc->sc_encodings, fp);
    566 }
    567 
    568 void
    569 auvia_set_params_sub(struct auvia_softc *sc, struct auvia_softc_chan *ch,
    570 		     struct audio_params *p)
    571 {
    572 	u_int32_t v;
    573 	u_int16_t regval;
    574 
    575 	if (!(sc->sc_flags & AUVIA_FLAGS_VT8233)) {
    576 		regval = (p->hw_channels == 2 ? AUVIA_RPMODE_STEREO : 0)
    577 			| (p->hw_precision * p->factor == 16 ?
    578 				AUVIA_RPMODE_16BIT : 0)
    579 			| AUVIA_RPMODE_INTR_FLAG | AUVIA_RPMODE_INTR_EOL
    580 			| AUVIA_RPMODE_AUTOSTART;
    581 		ch->sc_reg = regval;
    582 	} else if (ch->sc_base != VIA8233_MP_BASE) {
    583 		v = CH_READ4(sc, ch, VIA8233_RP_RATEFMT);
    584 		v &= ~(VIA8233_RATEFMT_48K | VIA8233_RATEFMT_STEREO
    585 			| VIA8233_RATEFMT_16BIT);
    586 
    587 		v |= VIA8233_RATEFMT_48K * (p->hw_sample_rate / 20)
    588 			/ (48000 / 20);
    589 		if (p->hw_channels == 2)
    590 			v |= VIA8233_RATEFMT_STEREO;
    591 		if (p->hw_precision == 16)
    592 			v |= VIA8233_RATEFMT_16BIT;
    593 
    594 		CH_WRITE4(sc, ch, VIA8233_RP_RATEFMT, v);
    595 	} else {
    596 		static const u_int32_t slottab[7] =
    597 			{ 0, 0xff000011, 0xff000021, 0,
    598 			  0xff004321, 0, 0xff436521};
    599 
    600 		regval = (p->hw_precision == 16
    601 			? VIA8233_MP_FORMAT_16BIT : VIA8233_MP_FORMAT_8BIT)
    602 			| (p->hw_channels << 4);
    603 		CH_WRITE1(sc, ch, VIA8233_OFF_MP_FORMAT, regval);
    604 		CH_WRITE4(sc, ch, VIA8233_OFF_MP_STOP, slottab[p->hw_channels]);
    605 	}
    606 }
    607 
    608 int
    609 auvia_set_params(void *addr, int setmode, int usemode,
    610 	struct audio_params *play, struct audio_params *rec)
    611 {
    612 	struct auvia_softc *sc = addr;
    613 	struct auvia_softc_chan *ch;
    614 	struct audio_params *p;
    615 	struct ac97_codec_if* codec;
    616 	int reg, mode;
    617 	int index;
    618 
    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 		} else {
    631 			p = rec;
    632 			ch = &sc->sc_record;
    633 			reg = AC97_REG_PCM_LR_ADC_RATE;
    634 		}
    635 
    636 		if (p->sample_rate < 4000 || p->sample_rate > 48000 ||
    637 		    (p->precision != 8 && p->precision != 16))
    638 			return (EINVAL);
    639 		index = auconv_set_converter(sc->sc_formats, AUVIA_NFORMATS,
    640 					     mode, p, TRUE);
    641 		if (index < 0)
    642 			return EINVAL;
    643 		if (!AC97_IS_FIXED_RATE(codec)) {
    644 			if (codec->vtbl->set_rate(codec, reg, &p->hw_sample_rate))
    645 				return EINVAL;
    646 			reg = AC97_REG_PCM_SURR_DAC_RATE;
    647 			if (p->hw_channels >= 4
    648 			    && codec->vtbl->set_rate(codec, reg,
    649 						     &p->hw_sample_rate))
    650 				return EINVAL;
    651 			reg = AC97_REG_PCM_LFE_DAC_RATE;
    652 			if (p->hw_channels == 6
    653 			    && codec->vtbl->set_rate(codec, reg,
    654 						     &p->hw_sample_rate))
    655 				return EINVAL;
    656 		}
    657 		auvia_set_params_sub(sc, ch, p);
    658 	}
    659 
    660 	return 0;
    661 }
    662 
    663 
    664 int
    665 auvia_round_blocksize(void *addr, int blk)
    666 {
    667 	struct auvia_softc *sc = addr;
    668 
    669 	/* XXX VT823x might have the limitation of dma_ops size */
    670 	if (sc->sc_flags & AUVIA_FLAGS_VT8233 && blk < 288)
    671 		blk = 288;
    672 
    673 	return (blk & -32);
    674 }
    675 
    676 
    677 int
    678 auvia_halt_output(void *addr)
    679 {
    680 	struct auvia_softc *sc = addr;
    681 	struct auvia_softc_chan *ch = &(sc->sc_play);
    682 
    683 	CH_WRITE1(sc, ch, AUVIA_RP_CONTROL, AUVIA_RPCTRL_TERMINATE);
    684 	ch->sc_intr = NULL;
    685 	return 0;
    686 }
    687 
    688 
    689 int
    690 auvia_halt_input(void *addr)
    691 {
    692 	struct auvia_softc *sc = addr;
    693 	struct auvia_softc_chan *ch = &(sc->sc_record);
    694 
    695 	CH_WRITE1(sc, ch, AUVIA_RP_CONTROL, AUVIA_RPCTRL_TERMINATE);
    696 	ch->sc_intr = NULL;
    697 	return 0;
    698 }
    699 
    700 
    701 int
    702 auvia_getdev(void *addr, struct audio_device *retp)
    703 {
    704 	struct auvia_softc *sc = addr;
    705 
    706 	if (retp) {
    707 		if (sc->sc_flags & AUVIA_FLAGS_VT8233) {
    708 			strncpy(retp->name, "VIA VT823x",
    709 				sizeof(retp->name));
    710 		} else {
    711 			strncpy(retp->name, "VIA VT82C686A",
    712 				sizeof(retp->name));
    713 		}
    714 		strncpy(retp->version, sc->sc_revision, sizeof(retp->version));
    715 		strncpy(retp->config, "auvia", sizeof(retp->config));
    716 	}
    717 
    718 	return 0;
    719 }
    720 
    721 
    722 int
    723 auvia_set_port(void *addr, mixer_ctrl_t *cp)
    724 {
    725 	struct auvia_softc *sc = addr;
    726 
    727 	return (sc->codec_if->vtbl->mixer_set_port(sc->codec_if, cp));
    728 }
    729 
    730 
    731 int
    732 auvia_get_port(void *addr, mixer_ctrl_t *cp)
    733 {
    734 	struct auvia_softc *sc = addr;
    735 
    736 	return (sc->codec_if->vtbl->mixer_get_port(sc->codec_if, cp));
    737 }
    738 
    739 
    740 int
    741 auvia_query_devinfo(void *addr, mixer_devinfo_t *dip)
    742 {
    743 	struct auvia_softc *sc = addr;
    744 
    745 	return (sc->codec_if->vtbl->query_devinfo(sc->codec_if, dip));
    746 }
    747 
    748 
    749 void *
    750 auvia_malloc(void *addr, int direction, size_t size, struct malloc_type * pool,
    751     int flags)
    752 {
    753 	struct auvia_softc *sc = addr;
    754 	struct auvia_dma *p;
    755 	int error;
    756 	int rseg;
    757 
    758 	p = malloc(sizeof(*p), pool, flags);
    759 	if (!p)
    760 		return 0;
    761 
    762 	p->size = size;
    763 	if ((error = bus_dmamem_alloc(sc->sc_dmat, size, PAGE_SIZE, 0, &p->seg,
    764 				      1, &rseg, BUS_DMA_NOWAIT)) != 0) {
    765 		printf("%s: unable to allocate DMA, error = %d\n",
    766 		       sc->sc_dev.dv_xname, error);
    767 		goto fail_alloc;
    768 	}
    769 
    770 	if ((error = bus_dmamem_map(sc->sc_dmat, &p->seg, rseg, size, &p->addr,
    771 				    BUS_DMA_NOWAIT | BUS_DMA_COHERENT)) != 0) {
    772 		printf("%s: unable to map DMA, error = %d\n",
    773 		       sc->sc_dev.dv_xname, error);
    774 		goto fail_map;
    775 	}
    776 
    777 	if ((error = bus_dmamap_create(sc->sc_dmat, size, 1, size, 0,
    778 				       BUS_DMA_NOWAIT, &p->map)) != 0) {
    779 		printf("%s: unable to create DMA map, error = %d\n",
    780 		       sc->sc_dev.dv_xname, error);
    781 		goto fail_create;
    782 	}
    783 
    784 	if ((error = bus_dmamap_load(sc->sc_dmat, p->map, p->addr, size, NULL,
    785 				     BUS_DMA_NOWAIT)) != 0) {
    786 		printf("%s: unable to load DMA map, error = %d\n",
    787 		       sc->sc_dev.dv_xname, error);
    788 		goto fail_load;
    789 	}
    790 
    791 	p->next = sc->sc_dmas;
    792 	sc->sc_dmas = p;
    793 
    794 	return p->addr;
    795 
    796 
    797 fail_load:
    798 	bus_dmamap_destroy(sc->sc_dmat, p->map);
    799 fail_create:
    800 	bus_dmamem_unmap(sc->sc_dmat, p->addr, size);
    801 fail_map:
    802 	bus_dmamem_free(sc->sc_dmat, &p->seg, 1);
    803 fail_alloc:
    804 	free(p, pool);
    805 	return 0;
    806 }
    807 
    808 
    809 void
    810 auvia_free(void *addr, void *ptr, struct malloc_type *pool)
    811 {
    812 	struct auvia_softc *sc = addr;
    813 	struct auvia_dma **pp, *p;
    814 
    815 	for (pp = &(sc->sc_dmas); (p = *pp) != NULL; pp = &p->next)
    816 		if (p->addr == ptr) {
    817 			bus_dmamap_unload(sc->sc_dmat, p->map);
    818 			bus_dmamap_destroy(sc->sc_dmat, p->map);
    819 			bus_dmamem_unmap(sc->sc_dmat, p->addr, p->size);
    820 			bus_dmamem_free(sc->sc_dmat, &p->seg, 1);
    821 
    822 			*pp = p->next;
    823 			free(p, pool);
    824 			return;
    825 		}
    826 
    827 	panic("auvia_free: trying to free unallocated memory");
    828 }
    829 
    830 
    831 size_t
    832 auvia_round_buffersize(void *addr, int direction, size_t size)
    833 {
    834 	return size;
    835 }
    836 
    837 
    838 paddr_t
    839 auvia_mappage(void *addr, void *mem, off_t off, int prot)
    840 {
    841 	struct auvia_softc *sc = addr;
    842 	struct auvia_dma *p;
    843 
    844 	if (off < 0)
    845 		return -1;
    846 
    847 	for (p = sc->sc_dmas; p && p->addr != mem; p = p->next)
    848 		;
    849 
    850 	if (!p)
    851 		return -1;
    852 
    853 	return bus_dmamem_mmap(sc->sc_dmat, &p->seg, 1, off, prot,
    854 	       BUS_DMA_WAITOK);
    855 }
    856 
    857 
    858 int
    859 auvia_get_props(void *addr)
    860 {
    861 	struct auvia_softc *sc = addr;
    862 	int props;
    863 
    864 	props = AUDIO_PROP_INDEPENDENT | AUDIO_PROP_FULLDUPLEX;
    865 	/*
    866 	 * Even if the codec is fixed-rate, set_param() succeeds for any sample
    867 	 * rate because of aurateconv.  Applications can't know what rate the
    868 	 * device can process in the case of mmap().
    869 	 */
    870 	if (!AC97_IS_FIXED_RATE(sc->codec_if))
    871 		props |= AUDIO_PROP_MMAP;
    872 	return props;
    873 }
    874 
    875 
    876 int
    877 auvia_build_dma_ops(struct auvia_softc *sc, struct auvia_softc_chan *ch,
    878 	struct auvia_dma *p, void *start, void *end, int blksize)
    879 {
    880 	struct auvia_dma_op *op;
    881 	struct auvia_dma *dp;
    882 	bus_addr_t s;
    883 	size_t l;
    884 	int segs;
    885 
    886 	s = p->map->dm_segs[0].ds_addr;
    887 	l = ((char *)end - (char *)start);
    888 	segs = (l + blksize - 1) / blksize;
    889 
    890 	if (segs > (ch->sc_dma_op_count)) {
    891 		/* if old list was too small, free it */
    892 		if (ch->sc_dma_ops) {
    893 			auvia_free(sc, ch->sc_dma_ops, M_DEVBUF);
    894 		}
    895 
    896 		ch->sc_dma_ops = auvia_malloc(sc, 0,
    897 			sizeof(struct auvia_dma_op) * segs, M_DEVBUF, M_WAITOK);
    898 
    899 		if (ch->sc_dma_ops == NULL) {
    900 			printf("%s: couldn't build dmaops\n", sc->sc_dev.dv_xname);
    901 			return 1;
    902 		}
    903 
    904 		for (dp = sc->sc_dmas;
    905 			dp && dp->addr != (void *)(ch->sc_dma_ops);
    906 			dp = dp->next)
    907 				;
    908 
    909 		if (!dp)
    910 			panic("%s: build_dma_ops: where'd my memory go??? "
    911 				"address (%p)\n", sc->sc_dev.dv_xname,
    912 				ch->sc_dma_ops);
    913 
    914 		ch->sc_dma_op_count = segs;
    915 		ch->sc_dma_ops_dma = dp;
    916 	}
    917 
    918 	dp = ch->sc_dma_ops_dma;
    919 	op = ch->sc_dma_ops;
    920 
    921 	while (l) {
    922 		op->ptr = s;
    923 		l = l - blksize;
    924 		if (!l) {
    925 			/* if last block */
    926 			op->flags = AUVIA_DMAOP_EOL | blksize;
    927 		} else {
    928 			op->flags = AUVIA_DMAOP_FLAG | blksize;
    929 		}
    930 		s += blksize;
    931 		op++;
    932 	}
    933 
    934 	return 0;
    935 }
    936 
    937 
    938 int
    939 auvia_trigger_output(void *addr, void *start, void *end,
    940 	int blksize, void (*intr)(void *), void *arg,
    941 	struct audio_params *param)
    942 {
    943 	struct auvia_softc *sc = addr;
    944 	struct auvia_softc_chan *ch = &(sc->sc_play);
    945 	struct auvia_dma *p;
    946 
    947 	for (p = sc->sc_dmas; p && p->addr != start; p = p->next)
    948 		;
    949 
    950 	if (!p)
    951 		panic("auvia_trigger_output: request with bad start "
    952 			"address (%p)", start);
    953 
    954 	if (auvia_build_dma_ops(sc, ch, p, start, end, blksize)) {
    955 		return 1;
    956 	}
    957 
    958 	ch->sc_intr = intr;
    959 	ch->sc_arg = arg;
    960 
    961 	CH_WRITE4(sc, ch, AUVIA_RP_DMAOPS_BASE,
    962 		ch->sc_dma_ops_dma->map->dm_segs[0].ds_addr);
    963 
    964 	if (sc->sc_flags & AUVIA_FLAGS_VT8233) {
    965 		if (ch->sc_base != VIA8233_MP_BASE) {
    966 			CH_WRITE1(sc, ch, VIA8233_RP_DXS_LVOL, 0);
    967 			CH_WRITE1(sc, ch, VIA8233_RP_DXS_RVOL, 0);
    968 		}
    969 		CH_WRITE1(sc, ch, AUVIA_RP_CONTROL,
    970 			AUVIA_RPCTRL_START | AUVIA_RPCTRL_AUTOSTART |
    971 			AUVIA_RPCTRL_STOP  | AUVIA_RPCTRL_EOL | AUVIA_RPCTRL_FLAG);
    972 	} else {
    973 		CH_WRITE1(sc, ch, AUVIA_RP_MODE, ch->sc_reg);
    974 		CH_WRITE1(sc, ch, AUVIA_RP_CONTROL, AUVIA_RPCTRL_START);
    975 	}
    976 
    977 	return 0;
    978 }
    979 
    980 
    981 int
    982 auvia_trigger_input(void *addr, void *start, void *end,
    983 	int blksize, void (*intr)(void *), void *arg,
    984 	struct audio_params *param)
    985 {
    986 	struct auvia_softc *sc = addr;
    987 	struct auvia_softc_chan *ch = &(sc->sc_record);
    988 	struct auvia_dma *p;
    989 
    990 	for (p = sc->sc_dmas; p && p->addr != start; p = p->next)
    991 		;
    992 
    993 	if (!p)
    994 		panic("auvia_trigger_input: request with bad start "
    995 			"address (%p)", start);
    996 
    997 	if (auvia_build_dma_ops(sc, ch, p, start, end, blksize)) {
    998 		return 1;
    999 	}
   1000 
   1001 	ch->sc_intr = intr;
   1002 	ch->sc_arg = arg;
   1003 
   1004 	CH_WRITE4(sc, ch, AUVIA_RP_DMAOPS_BASE,
   1005 		  ch->sc_dma_ops_dma->map->dm_segs[0].ds_addr);
   1006 
   1007 	if (sc->sc_flags & AUVIA_FLAGS_VT8233) {
   1008 		CH_WRITE1(sc, ch, VIA8233_RP_DXS_LVOL, 0);
   1009 		CH_WRITE1(sc, ch, VIA8233_RP_DXS_RVOL, 0);
   1010 		CH_WRITE1(sc, ch, AUVIA_RP_CONTROL,
   1011 			AUVIA_RPCTRL_START | AUVIA_RPCTRL_AUTOSTART |
   1012 			AUVIA_RPCTRL_STOP  | AUVIA_RPCTRL_EOL | AUVIA_RPCTRL_FLAG);
   1013 	} else {
   1014 		CH_WRITE1(sc, ch, AUVIA_RP_MODE, ch->sc_reg);
   1015 		CH_WRITE1(sc, ch, AUVIA_RP_CONTROL, AUVIA_RPCTRL_START);
   1016 	}
   1017 
   1018 	return 0;
   1019 }
   1020 
   1021 
   1022 int
   1023 auvia_intr(void *arg)
   1024 {
   1025 	struct auvia_softc *sc = arg;
   1026 	struct auvia_softc_chan *ch;
   1027 	u_int8_t r;
   1028 	int rval;
   1029 
   1030 	rval = 0;
   1031 
   1032 	ch = &sc->sc_record;
   1033 	r = CH_READ1(sc, ch, AUVIA_RP_STAT);
   1034 	if (r & AUVIA_RPSTAT_INTR) {
   1035 		if (sc->sc_record.sc_intr)
   1036 			sc->sc_record.sc_intr(sc->sc_record.sc_arg);
   1037 
   1038 		/* clear interrupts */
   1039 		CH_WRITE1(sc, ch, AUVIA_RP_STAT, AUVIA_RPSTAT_INTR);
   1040 		rval = 1;
   1041 	}
   1042 
   1043 	ch = &sc->sc_play;
   1044 	r = CH_READ1(sc, ch, AUVIA_RP_STAT);
   1045 	if (r & AUVIA_RPSTAT_INTR) {
   1046 		if (sc->sc_play.sc_intr)
   1047 			sc->sc_play.sc_intr(sc->sc_play.sc_arg);
   1048 
   1049 		/* clear interrupts */
   1050 		CH_WRITE1(sc, ch, AUVIA_RP_STAT, AUVIA_RPSTAT_INTR);
   1051 		rval = 1;
   1052 	}
   1053 
   1054 	return rval;
   1055 }
   1056 
   1057 void
   1058 auvia_powerhook(int why, void *addr)
   1059 {
   1060 	struct auvia_softc *sc = (struct auvia_softc *)addr;
   1061 
   1062 	switch (why) {
   1063 	case PWR_SUSPEND:
   1064 	case PWR_STANDBY:
   1065 		/* Power down */
   1066 		sc->sc_suspend = why;
   1067 		break;
   1068 
   1069 	case PWR_RESUME:
   1070 		/* Wake up */
   1071 		if (sc->sc_suspend == PWR_RESUME) {
   1072 			printf("%s: resume without suspend.\n",
   1073 			    sc->sc_dev.dv_xname);
   1074 			sc->sc_suspend = why;
   1075 			return;
   1076 		}
   1077 		sc->sc_suspend = why;
   1078 		auvia_reset_codec(sc);
   1079 		DELAY(1000);
   1080 		(sc->codec_if->vtbl->restore_ports)(sc->codec_if);
   1081 		break;
   1082 
   1083 	case PWR_SOFTSUSPEND:
   1084 	case PWR_SOFTSTANDBY:
   1085 	case PWR_SOFTRESUME:
   1086 		break;
   1087 	}
   1088 }
   1089