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sv.c revision 1.35
      1 /*      $NetBSD: sv.c,v 1.35 2006/11/16 01:33:10 christos Exp $ */
      2 /*      $OpenBSD: sv.c,v 1.2 1998/07/13 01:50:15 csapuntz Exp $ */
      3 
      4 /*
      5  * Copyright (c) 1999 The NetBSD Foundation, Inc.
      6  * All rights reserved.
      7  *
      8  * This code is derived from software contributed to The NetBSD Foundation
      9  * by Charles M. Hannum.
     10  *
     11  * Redistribution and use in source and binary forms, with or without
     12  * modification, are permitted provided that the following conditions
     13  * are met:
     14  * 1. Redistributions of source code must retain the above copyright
     15  *    notice, this list of conditions and the following disclaimer.
     16  * 2. Redistributions in binary form must reproduce the above copyright
     17  *    notice, this list of conditions and the following disclaimer in the
     18  *    documentation and/or other materials provided with the distribution.
     19  * 3. All advertising materials mentioning features or use of this software
     20  *    must display the following acknowledgement:
     21  *        This product includes software developed by the NetBSD
     22  *        Foundation, Inc. and its contributors.
     23  * 4. Neither the name of The NetBSD Foundation nor the names of its
     24  *    contributors may be used to endorse or promote products derived
     25  *    from this software without specific prior written permission.
     26  *
     27  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
     28  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
     29  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     30  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
     31  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
     32  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
     33  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
     34  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
     35  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
     36  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
     37  * POSSIBILITY OF SUCH DAMAGE.
     38  */
     39 
     40 /*
     41  * Copyright (c) 1998 Constantine Paul Sapuntzakis
     42  * All rights reserved
     43  *
     44  * Author: Constantine Paul Sapuntzakis (csapuntz (at) cvs.openbsd.org)
     45  *
     46  * Redistribution and use in source and binary forms, with or without
     47  * modification, are permitted provided that the following conditions
     48  * are met:
     49  * 1. Redistributions of source code must retain the above copyright
     50  *    notice, this list of conditions and the following disclaimer.
     51  * 2. Redistributions in binary form must reproduce the above copyright
     52  *    notice, this list of conditions and the following disclaimer in the
     53  *    documentation and/or other materials provided with the distribution.
     54  * 3. The author's name or those of the contributors may be used to
     55  *    endorse or promote products derived from this software without
     56  *    specific prior written permission.
     57  *
     58  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR(S) AND CONTRIBUTORS
     59  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
     60  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     61  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
     62  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
     63  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
     64  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
     65  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
     66  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
     67  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
     68  * POSSIBILITY OF SUCH DAMAGE.
     69  */
     70 
     71 /*
     72  * S3 SonicVibes driver
     73  *   Heavily based on the eap driver by Lennart Augustsson
     74  */
     75 
     76 #include <sys/cdefs.h>
     77 __KERNEL_RCSID(0, "$NetBSD: sv.c,v 1.35 2006/11/16 01:33:10 christos Exp $");
     78 
     79 #include <sys/param.h>
     80 #include <sys/systm.h>
     81 #include <sys/kernel.h>
     82 #include <sys/malloc.h>
     83 #include <sys/device.h>
     84 
     85 #include <dev/pci/pcireg.h>
     86 #include <dev/pci/pcivar.h>
     87 #include <dev/pci/pcidevs.h>
     88 
     89 #include <sys/audioio.h>
     90 #include <dev/audio_if.h>
     91 #include <dev/mulaw.h>
     92 #include <dev/auconv.h>
     93 
     94 #include <dev/ic/i8237reg.h>
     95 #include <dev/pci/svreg.h>
     96 #include <dev/pci/svvar.h>
     97 
     98 #include <machine/bus.h>
     99 
    100 /* XXX
    101  * The SonicVibes DMA is broken and only works on 24-bit addresses.
    102  * As long as bus_dmamem_alloc_range() is missing we use the ISA
    103  * DMA tag on i386.
    104  */
    105 #if defined(i386)
    106 #include "isa.h"
    107 #if NISA > 0
    108 #include <dev/isa/isavar.h>
    109 #endif
    110 #endif
    111 
    112 #ifdef AUDIO_DEBUG
    113 #define DPRINTF(x)	if (svdebug) printf x
    114 #define DPRINTFN(n,x)	if (svdebug>(n)) printf x
    115 int	svdebug = 0;
    116 #else
    117 #define DPRINTF(x)
    118 #define DPRINTFN(n,x)
    119 #endif
    120 
    121 static int	sv_match(struct device *, struct cfdata *, void *);
    122 static void	sv_attach(struct device *, struct device *, void *);
    123 static int	sv_intr(void *);
    124 
    125 struct sv_dma {
    126 	bus_dmamap_t map;
    127 	caddr_t addr;
    128 	bus_dma_segment_t segs[1];
    129 	int nsegs;
    130 	size_t size;
    131 	struct sv_dma *next;
    132 };
    133 #define DMAADDR(p) ((p)->map->dm_segs[0].ds_addr)
    134 #define KERNADDR(p) ((void *)((p)->addr))
    135 
    136 CFATTACH_DECL(sv, sizeof(struct sv_softc),
    137     sv_match, sv_attach, NULL, NULL);
    138 
    139 static struct audio_device sv_device = {
    140 	"S3 SonicVibes",
    141 	"",
    142 	"sv"
    143 };
    144 
    145 #define ARRAY_SIZE(foo)  ((sizeof(foo)) / sizeof(foo[0]))
    146 
    147 static int	sv_allocmem(struct sv_softc *, size_t, size_t, int,
    148 			    struct sv_dma *);
    149 static int	sv_freemem(struct sv_softc *, struct sv_dma *);
    150 
    151 static void	sv_init_mixer(struct sv_softc *);
    152 
    153 static int	sv_open(void *, int);
    154 static int	sv_query_encoding(void *, struct audio_encoding *);
    155 static int	sv_set_params(void *, int, int, audio_params_t *,
    156 			      audio_params_t *, stream_filter_list_t *,
    157 			      stream_filter_list_t *);
    158 static int	sv_round_blocksize(void *, int, int, const audio_params_t *);
    159 static int	sv_trigger_output(void *, void *, void *, int, void (*)(void *),
    160 				  void *, const audio_params_t *);
    161 static int	sv_trigger_input(void *, void *, void *, int, void (*)(void *),
    162 				 void *, const audio_params_t *);
    163 static int	sv_halt_output(void *);
    164 static int	sv_halt_input(void *);
    165 static int	sv_getdev(void *, struct audio_device *);
    166 static int	sv_mixer_set_port(void *, mixer_ctrl_t *);
    167 static int	sv_mixer_get_port(void *, mixer_ctrl_t *);
    168 static int	sv_query_devinfo(void *, mixer_devinfo_t *);
    169 static void *	sv_malloc(void *, int, size_t, struct malloc_type *, int);
    170 static void	sv_free(void *, void *, struct malloc_type *);
    171 static size_t	sv_round_buffersize(void *, int, size_t);
    172 static paddr_t	sv_mappage(void *, void *, off_t, int);
    173 static int	sv_get_props(void *);
    174 
    175 #ifdef AUDIO_DEBUG
    176 void    sv_dumpregs(struct sv_softc *sc);
    177 #endif
    178 
    179 static const struct audio_hw_if sv_hw_if = {
    180 	sv_open,
    181 	NULL,			/* close */
    182 	NULL,
    183 	sv_query_encoding,
    184 	sv_set_params,
    185 	sv_round_blocksize,
    186 	NULL,
    187 	NULL,
    188 	NULL,
    189 	NULL,
    190 	NULL,
    191 	sv_halt_output,
    192 	sv_halt_input,
    193 	NULL,
    194 	sv_getdev,
    195 	NULL,
    196 	sv_mixer_set_port,
    197 	sv_mixer_get_port,
    198 	sv_query_devinfo,
    199 	sv_malloc,
    200 	sv_free,
    201 	sv_round_buffersize,
    202 	sv_mappage,
    203 	sv_get_props,
    204 	sv_trigger_output,
    205 	sv_trigger_input,
    206 	NULL,
    207 	NULL,
    208 };
    209 
    210 #define SV_NFORMATS	4
    211 static const struct audio_format sv_formats[SV_NFORMATS] = {
    212 	{NULL, AUMODE_PLAY | AUMODE_RECORD, AUDIO_ENCODING_SLINEAR_LE, 16, 16,
    213 	 2, AUFMT_STEREO, 0, {2000, 48000}},
    214 	{NULL, AUMODE_PLAY | AUMODE_RECORD, AUDIO_ENCODING_SLINEAR_LE, 16, 16,
    215 	 1, AUFMT_MONAURAL, 0, {2000, 48000}},
    216 	{NULL, AUMODE_PLAY | AUMODE_RECORD, AUDIO_ENCODING_ULINEAR_LE, 8, 8,
    217 	 2, AUFMT_STEREO, 0, {2000, 48000}},
    218 	{NULL, AUMODE_PLAY | AUMODE_RECORD, AUDIO_ENCODING_ULINEAR_LE, 8, 8,
    219 	 1, AUFMT_MONAURAL, 0, {2000, 48000}},
    220 };
    221 
    222 
    223 static void
    224 sv_write(struct sv_softc *sc, uint8_t reg, uint8_t val)
    225 {
    226 
    227 	DPRINTFN(8,("sv_write(0x%x, 0x%x)\n", reg, val));
    228 	bus_space_write_1(sc->sc_iot, sc->sc_ioh, reg, val);
    229 }
    230 
    231 static uint8_t
    232 sv_read(struct sv_softc *sc, uint8_t reg)
    233 {
    234 	uint8_t val;
    235 
    236 	val = bus_space_read_1(sc->sc_iot, sc->sc_ioh, reg);
    237 	DPRINTFN(8,("sv_read(0x%x) = 0x%x\n", reg, val));
    238 	return val;
    239 }
    240 
    241 static uint8_t
    242 sv_read_indirect(struct sv_softc *sc, uint8_t reg)
    243 {
    244 	uint8_t val;
    245 	int s;
    246 
    247 	s = splaudio();
    248 	sv_write(sc, SV_CODEC_IADDR, reg & SV_IADDR_MASK);
    249 	val = sv_read(sc, SV_CODEC_IDATA);
    250 	splx(s);
    251 	return val;
    252 }
    253 
    254 static void
    255 sv_write_indirect(struct sv_softc *sc, uint8_t reg, uint8_t val)
    256 {
    257 	uint8_t iaddr;
    258 	int s;
    259 
    260 	iaddr = reg & SV_IADDR_MASK;
    261 	s = splaudio();
    262 	if (reg == SV_DMA_DATA_FORMAT)
    263 		iaddr |= SV_IADDR_MCE;
    264 
    265 	sv_write(sc, SV_CODEC_IADDR, iaddr);
    266 	sv_write(sc, SV_CODEC_IDATA, val);
    267 	splx(s);
    268 }
    269 
    270 static int
    271 sv_match(struct device *parent, struct cfdata *match,
    272     void *aux)
    273 {
    274 	struct pci_attach_args *pa;
    275 
    276 	pa = aux;
    277 	if (PCI_VENDOR(pa->pa_id) == PCI_VENDOR_S3 &&
    278 	    PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_S3_SONICVIBES)
    279 		return 1;
    280 
    281 	return 0;
    282 }
    283 
    284 static pcireg_t pci_io_alloc_low, pci_io_alloc_high;
    285 
    286 static int
    287 pci_alloc_io(pci_chipset_tag_t pc, pcitag_t pt, int pcioffs,
    288     bus_space_tag_t iot, bus_size_t size, bus_size_t align,
    289     bus_size_t bound, int flags, bus_space_handle_t *ioh)
    290 {
    291 	bus_addr_t addr;
    292 	int error;
    293 
    294 	error = bus_space_alloc(iot, pci_io_alloc_low, pci_io_alloc_high,
    295 				size, align, bound, flags, &addr, ioh);
    296 	if (error)
    297 		return error;
    298 
    299 	pci_conf_write(pc, pt, pcioffs, addr);
    300 	return 0;
    301 }
    302 
    303 /*
    304  * Allocate IO addresses when all other configuration is done.
    305  */
    306 static void
    307 sv_defer(struct device *self)
    308 {
    309 	struct sv_softc *sc;
    310 	pci_chipset_tag_t pc;
    311 	pcitag_t pt;
    312 	pcireg_t dmaio;
    313 
    314 	sc = (struct sv_softc *)self;
    315 	pc = sc->sc_pa.pa_pc;
    316 	pt = sc->sc_pa.pa_tag;
    317 	DPRINTF(("sv_defer: %p\n", sc));
    318 
    319 	/* XXX
    320 	 * Get a reasonable default for the I/O range.
    321 	 * Assume the range around SB_PORTBASE is valid on this PCI bus.
    322 	 */
    323 	pci_io_alloc_low = pci_conf_read(pc, pt, SV_SB_PORTBASE_SLOT);
    324 	pci_io_alloc_high = pci_io_alloc_low + 0x1000;
    325 
    326 	if (pci_alloc_io(pc, pt, SV_DMAA_CONFIG_OFF,
    327 			  sc->sc_iot, SV_DMAA_SIZE, SV_DMAA_ALIGN, 0,
    328 			  0, &sc->sc_dmaa_ioh)) {
    329 		printf("sv_attach: cannot allocate DMA A range\n");
    330 		return;
    331 	}
    332 	dmaio = pci_conf_read(pc, pt, SV_DMAA_CONFIG_OFF);
    333 	DPRINTF(("sv_attach: addr a dmaio=0x%lx\n", (u_long)dmaio));
    334 	pci_conf_write(pc, pt, SV_DMAA_CONFIG_OFF,
    335 		       dmaio | SV_DMA_CHANNEL_ENABLE | SV_DMAA_EXTENDED_ADDR);
    336 
    337 	if (pci_alloc_io(pc, pt, SV_DMAC_CONFIG_OFF,
    338 			  sc->sc_iot, SV_DMAC_SIZE, SV_DMAC_ALIGN, 0,
    339 			  0, &sc->sc_dmac_ioh)) {
    340 		printf("sv_attach: cannot allocate DMA C range\n");
    341 		return;
    342 	}
    343 	dmaio = pci_conf_read(pc, pt, SV_DMAC_CONFIG_OFF);
    344 	DPRINTF(("sv_attach: addr c dmaio=0x%lx\n", (u_long)dmaio));
    345 	pci_conf_write(pc, pt, SV_DMAC_CONFIG_OFF,
    346 		       dmaio | SV_DMA_CHANNEL_ENABLE);
    347 
    348 	sc->sc_dmaset = 1;
    349 }
    350 
    351 static void
    352 sv_attach(struct device *parent, struct device *self, void *aux)
    353 {
    354 	struct sv_softc *sc;
    355 	struct pci_attach_args *pa;
    356 	pci_chipset_tag_t pc;
    357 	pcitag_t pt;
    358 	pci_intr_handle_t ih;
    359 	pcireg_t csr;
    360 	char const *intrstr;
    361 	uint8_t reg;
    362 	struct audio_attach_args arg;
    363 
    364 	sc = (struct sv_softc *)self;
    365 	pa = aux;
    366 	pc = pa->pa_pc;
    367 	pt = pa->pa_tag;
    368 	printf ("\n");
    369 
    370 	/* Map I/O registers */
    371 	if (pci_mapreg_map(pa, SV_ENHANCED_PORTBASE_SLOT,
    372 			   PCI_MAPREG_TYPE_IO, 0,
    373 			   &sc->sc_iot, &sc->sc_ioh, NULL, NULL)) {
    374 		printf("%s: can't map enhanced i/o space\n",
    375 		       sc->sc_dev.dv_xname);
    376 		return;
    377 	}
    378 	if (pci_mapreg_map(pa, SV_FM_PORTBASE_SLOT,
    379 			   PCI_MAPREG_TYPE_IO, 0,
    380 			   &sc->sc_opliot, &sc->sc_oplioh, NULL, NULL)) {
    381 		printf("%s: can't map FM i/o space\n", sc->sc_dev.dv_xname);
    382 		return;
    383 	}
    384 	if (pci_mapreg_map(pa, SV_MIDI_PORTBASE_SLOT,
    385 			   PCI_MAPREG_TYPE_IO, 0,
    386 			   &sc->sc_midiiot, &sc->sc_midiioh, NULL, NULL)) {
    387 		printf("%s: can't map MIDI i/o space\n", sc->sc_dev.dv_xname);
    388 		return;
    389 	}
    390 	DPRINTF(("sv: IO ports: enhanced=0x%x, OPL=0x%x, MIDI=0x%x\n",
    391 		 (int)sc->sc_ioh, (int)sc->sc_oplioh, (int)sc->sc_midiioh));
    392 
    393 #if defined(alpha)
    394 	/* XXX Force allocation through the SGMAP. */
    395 	sc->sc_dmatag = alphabus_dma_get_tag(pa->pa_dmat, ALPHA_BUS_ISA);
    396 #elif defined(i386) && NISA > 0
    397 /* XXX
    398  * The SonicVibes DMA is broken and only works on 24-bit addresses.
    399  * As long as bus_dmamem_alloc_range() is missing we use the ISA
    400  * DMA tag on i386.
    401  */
    402 	sc->sc_dmatag = &isa_bus_dma_tag;
    403 #else
    404 	sc->sc_dmatag = pa->pa_dmat;
    405 #endif
    406 
    407 	pci_conf_write(pc, pt, SV_DMAA_CONFIG_OFF, SV_DMAA_EXTENDED_ADDR);
    408 	pci_conf_write(pc, pt, SV_DMAC_CONFIG_OFF, 0);
    409 
    410 	/* Enable the device. */
    411 	csr = pci_conf_read(pc, pt, PCI_COMMAND_STATUS_REG);
    412 	pci_conf_write(pc, pt, PCI_COMMAND_STATUS_REG,
    413 		       csr | PCI_COMMAND_MASTER_ENABLE);
    414 
    415 	sv_write_indirect(sc, SV_ANALOG_POWER_DOWN_CONTROL, 0);
    416 	sv_write_indirect(sc, SV_DIGITAL_POWER_DOWN_CONTROL, 0);
    417 
    418 	/* initialize codec registers */
    419 	reg = sv_read(sc, SV_CODEC_CONTROL);
    420 	reg |= SV_CTL_RESET;
    421 	sv_write(sc, SV_CODEC_CONTROL, reg);
    422 	delay(50);
    423 
    424 	reg = sv_read(sc, SV_CODEC_CONTROL);
    425 	reg &= ~SV_CTL_RESET;
    426 	reg |= SV_CTL_INTA | SV_CTL_ENHANCED;
    427 
    428 	/* This write clears the reset */
    429 	sv_write(sc, SV_CODEC_CONTROL, reg);
    430 	delay(50);
    431 
    432 	/* This write actually shoves the new values in */
    433 	sv_write(sc, SV_CODEC_CONTROL, reg);
    434 
    435 	DPRINTF(("sv_attach: control=0x%x\n", sv_read(sc, SV_CODEC_CONTROL)));
    436 
    437 	/* Enable DMA interrupts */
    438 	reg = sv_read(sc, SV_CODEC_INTMASK);
    439 	reg &= ~(SV_INTMASK_DMAA | SV_INTMASK_DMAC);
    440 	reg |= SV_INTMASK_UD | SV_INTMASK_SINT | SV_INTMASK_MIDI;
    441 	sv_write(sc, SV_CODEC_INTMASK, reg);
    442 
    443 	sv_read(sc, SV_CODEC_STATUS);
    444 
    445 	/* Map and establish the interrupt. */
    446 	if (pci_intr_map(pa, &ih)) {
    447 		printf("%s: couldn't map interrupt\n", sc->sc_dev.dv_xname);
    448 		return;
    449 	}
    450 	intrstr = pci_intr_string(pc, ih);
    451 	sc->sc_ih = pci_intr_establish(pc, ih, IPL_AUDIO, sv_intr, sc);
    452 	if (sc->sc_ih == NULL) {
    453 		printf("%s: couldn't establish interrupt",
    454 		       sc->sc_dev.dv_xname);
    455 		if (intrstr != NULL)
    456 			printf(" at %s", intrstr);
    457 		printf("\n");
    458 		return;
    459 	}
    460 	printf("%s: interrupting at %s\n", sc->sc_dev.dv_xname, intrstr);
    461 	printf("%s: rev %d", sc->sc_dev.dv_xname,
    462 	       sv_read_indirect(sc, SV_REVISION_LEVEL));
    463 	if (sv_read(sc, SV_CODEC_CONTROL) & SV_CTL_MD1)
    464 		printf(", reverb SRAM present");
    465 	if (!(sv_read_indirect(sc, SV_WAVETABLE_SOURCE_SELECT) & SV_WSS_WT0))
    466 		printf(", wavetable ROM present");
    467 	printf("\n");
    468 
    469 	sv_init_mixer(sc);
    470 
    471 	audio_attach_mi(&sv_hw_if, sc, &sc->sc_dev);
    472 
    473 	arg.type = AUDIODEV_TYPE_OPL;
    474 	arg.hwif = 0;
    475 	arg.hdl = 0;
    476 	(void)config_found(&sc->sc_dev, &arg, audioprint);
    477 
    478 	sc->sc_pa = *pa;	/* for deferred setup */
    479 	config_defer(self, sv_defer);
    480 }
    481 
    482 #ifdef AUDIO_DEBUG
    483 void
    484 sv_dumpregs(struct sv_softc *sc)
    485 {
    486 	int idx;
    487 
    488 #if 0
    489 	for (idx = 0; idx < 0x50; idx += 4)
    490 		printf ("%02x = %x\n", idx,
    491 			pci_conf_read(pa->pa_pc, pa->pa_tag, idx));
    492 #endif
    493 
    494 	for (idx = 0; idx < 6; idx++)
    495 		printf ("REG %02x = %02x\n", idx, sv_read(sc, idx));
    496 
    497 	for (idx = 0; idx < 0x32; idx++)
    498 		printf ("IREG %02x = %02x\n", idx, sv_read_indirect(sc, idx));
    499 
    500 	for (idx = 0; idx < 0x10; idx++)
    501 		printf ("DMA %02x = %02x\n", idx,
    502 			bus_space_read_1(sc->sc_iot, sc->sc_dmaa_ioh, idx));
    503 }
    504 #endif
    505 
    506 static int
    507 sv_intr(void *p)
    508 {
    509 	struct sv_softc *sc;
    510 	uint8_t intr;
    511 
    512 	sc = p;
    513 	intr = sv_read(sc, SV_CODEC_STATUS);
    514 	DPRINTFN(5,("sv_intr: intr=0x%x\n", intr));
    515 
    516 	if (!(intr & (SV_INTSTATUS_DMAA | SV_INTSTATUS_DMAC)))
    517 		return 0;
    518 
    519 	if (intr & SV_INTSTATUS_DMAA) {
    520 		if (sc->sc_pintr)
    521 			sc->sc_pintr(sc->sc_parg);
    522 	}
    523 
    524 	if (intr & SV_INTSTATUS_DMAC) {
    525 		if (sc->sc_rintr)
    526 			sc->sc_rintr(sc->sc_rarg);
    527 	}
    528 
    529 	return 1;
    530 }
    531 
    532 static int
    533 sv_allocmem(struct sv_softc *sc, size_t size, size_t align,
    534     int direction, struct sv_dma *p)
    535 {
    536 	int error;
    537 
    538 	p->size = size;
    539 	error = bus_dmamem_alloc(sc->sc_dmatag, p->size, align, 0,
    540 	    p->segs, ARRAY_SIZE(p->segs), &p->nsegs, BUS_DMA_NOWAIT);
    541 	if (error)
    542 		return error;
    543 
    544 	error = bus_dmamem_map(sc->sc_dmatag, p->segs, p->nsegs, p->size,
    545 	    &p->addr, BUS_DMA_NOWAIT|BUS_DMA_COHERENT);
    546 	if (error)
    547 		goto free;
    548 
    549 	error = bus_dmamap_create(sc->sc_dmatag, p->size, 1, p->size,
    550 	    0, BUS_DMA_NOWAIT, &p->map);
    551 	if (error)
    552 		goto unmap;
    553 
    554 	error = bus_dmamap_load(sc->sc_dmatag, p->map, p->addr, p->size, NULL,
    555 	    BUS_DMA_NOWAIT | (direction == AUMODE_RECORD) ? BUS_DMA_READ : BUS_DMA_WRITE);
    556 	if (error)
    557 		goto destroy;
    558 	DPRINTF(("sv_allocmem: pa=%lx va=%lx pba=%lx\n",
    559 	    (long)p->segs[0].ds_addr, (long)KERNADDR(p), (long)DMAADDR(p)));
    560 	return 0;
    561 
    562 destroy:
    563 	bus_dmamap_destroy(sc->sc_dmatag, p->map);
    564 unmap:
    565 	bus_dmamem_unmap(sc->sc_dmatag, p->addr, p->size);
    566 free:
    567 	bus_dmamem_free(sc->sc_dmatag, p->segs, p->nsegs);
    568 	return error;
    569 }
    570 
    571 static int
    572 sv_freemem(struct sv_softc *sc, struct sv_dma *p)
    573 {
    574 
    575 	bus_dmamap_unload(sc->sc_dmatag, p->map);
    576 	bus_dmamap_destroy(sc->sc_dmatag, p->map);
    577 	bus_dmamem_unmap(sc->sc_dmatag, p->addr, p->size);
    578 	bus_dmamem_free(sc->sc_dmatag, p->segs, p->nsegs);
    579 	return 0;
    580 }
    581 
    582 static int
    583 sv_open(void *addr, int flags)
    584 {
    585 	struct sv_softc *sc;
    586 
    587 	sc = addr;
    588 	DPRINTF(("sv_open\n"));
    589 	if (!sc->sc_dmaset)
    590 		return ENXIO;
    591 
    592 	return 0;
    593 }
    594 
    595 static int
    596 sv_query_encoding(void *addr, struct audio_encoding *fp)
    597 {
    598 
    599 	switch (fp->index) {
    600 	case 0:
    601 		strcpy(fp->name, AudioEulinear);
    602 		fp->encoding = AUDIO_ENCODING_ULINEAR;
    603 		fp->precision = 8;
    604 		fp->flags = 0;
    605 		return 0;
    606 	case 1:
    607 		strcpy(fp->name, AudioEmulaw);
    608 		fp->encoding = AUDIO_ENCODING_ULAW;
    609 		fp->precision = 8;
    610 		fp->flags = AUDIO_ENCODINGFLAG_EMULATED;
    611 		return 0;
    612 	case 2:
    613 		strcpy(fp->name, AudioEalaw);
    614 		fp->encoding = AUDIO_ENCODING_ALAW;
    615 		fp->precision = 8;
    616 		fp->flags = AUDIO_ENCODINGFLAG_EMULATED;
    617 		return 0;
    618 	case 3:
    619 		strcpy(fp->name, AudioEslinear);
    620 		fp->encoding = AUDIO_ENCODING_SLINEAR;
    621 		fp->precision = 8;
    622 		fp->flags = AUDIO_ENCODINGFLAG_EMULATED;
    623 		return 0;
    624 	case 4:
    625 		strcpy(fp->name, AudioEslinear_le);
    626 		fp->encoding = AUDIO_ENCODING_SLINEAR_LE;
    627 		fp->precision = 16;
    628 		fp->flags = 0;
    629 		return 0;
    630 	case 5:
    631 		strcpy(fp->name, AudioEulinear_le);
    632 		fp->encoding = AUDIO_ENCODING_ULINEAR_LE;
    633 		fp->precision = 16;
    634 		fp->flags = AUDIO_ENCODINGFLAG_EMULATED;
    635 		return 0;
    636 	case 6:
    637 		strcpy(fp->name, AudioEslinear_be);
    638 		fp->encoding = AUDIO_ENCODING_SLINEAR_BE;
    639 		fp->precision = 16;
    640 		fp->flags = AUDIO_ENCODINGFLAG_EMULATED;
    641 		return 0;
    642 	case 7:
    643 		strcpy(fp->name, AudioEulinear_be);
    644 		fp->encoding = AUDIO_ENCODING_ULINEAR_BE;
    645 		fp->precision = 16;
    646 		fp->flags = AUDIO_ENCODINGFLAG_EMULATED;
    647 		return 0;
    648 	default:
    649 		return EINVAL;
    650 	}
    651 }
    652 
    653 static int
    654 sv_set_params(void *addr, int setmode, int usemode, audio_params_t *play,
    655     audio_params_t *rec, stream_filter_list_t *pfil, stream_filter_list_t *rfil)
    656 {
    657 	struct sv_softc *sc;
    658 	audio_params_t *p;
    659 	uint32_t val;
    660 
    661 	sc = addr;
    662 	p = NULL;
    663 	/*
    664 	 * This device only has one clock, so make the sample rates match.
    665 	 */
    666 	if (play->sample_rate != rec->sample_rate &&
    667 	    usemode == (AUMODE_PLAY | AUMODE_RECORD)) {
    668 		if (setmode == AUMODE_PLAY) {
    669 			rec->sample_rate = play->sample_rate;
    670 			setmode |= AUMODE_RECORD;
    671 		} else if (setmode == AUMODE_RECORD) {
    672 			play->sample_rate = rec->sample_rate;
    673 			setmode |= AUMODE_PLAY;
    674 		} else
    675 			return EINVAL;
    676 	}
    677 
    678 	if (setmode & AUMODE_RECORD) {
    679 		p = rec;
    680 		if (auconv_set_converter(sv_formats, SV_NFORMATS,
    681 					 AUMODE_RECORD, rec, FALSE, rfil) < 0)
    682 			return EINVAL;
    683 	}
    684 	if (setmode & AUMODE_PLAY) {
    685 		p = play;
    686 		if (auconv_set_converter(sv_formats, SV_NFORMATS,
    687 					 AUMODE_PLAY, play, FALSE, pfil) < 0)
    688 			return EINVAL;
    689 	}
    690 
    691 	if (p == NULL)
    692 		return 0;
    693 
    694 	val = p->sample_rate * 65536 / 48000;
    695 	/*
    696 	 * If the sample rate is exactly 48 kHz, the fraction would overflow the
    697 	 * register, so we have to bias it.  This causes a little clock drift.
    698 	 * The drift is below normal crystal tolerance (.0001%), so although
    699 	 * this seems a little silly, we can pretty much ignore it.
    700 	 * (I tested the output speed with values of 1-20, just to be sure this
    701 	 * register isn't *supposed* to have a bias.  It isn't.)
    702 	 * - mycroft
    703 	 */
    704 	if (val > 65535)
    705 		val = 65535;
    706 
    707 	sv_write_indirect(sc, SV_PCM_SAMPLE_RATE_0, val & 0xff);
    708 	sv_write_indirect(sc, SV_PCM_SAMPLE_RATE_1, val >> 8);
    709 
    710 #define F_REF 24576000
    711 
    712 #define ABS(x) (((x) < 0) ? (-x) : (x))
    713 
    714 	if (setmode & AUMODE_RECORD) {
    715 		/* The ADC reference frequency (f_out) is 512 * sample rate */
    716 
    717 		/* f_out is dervied from the 24.576MHz crystal by three values:
    718 		   M & N & R. The equation is as follows:
    719 
    720 		   f_out = (m + 2) * f_ref / ((n + 2) * (2 ^ a))
    721 
    722 		   with the constraint that:
    723 
    724 		   80 MHz < (m + 2) / (n + 2) * f_ref <= 150MHz
    725 		   and n, m >= 1
    726 		*/
    727 
    728 		int  goal_f_out;
    729 		int  a, n, m, best_n, best_m, best_error;
    730 		int  pll_sample;
    731 		int  error;
    732 
    733 		goal_f_out = 512 * rec->sample_rate;
    734 		best_n = 0;
    735 		best_m = 0;
    736 		best_error = 10000000;
    737 		for (a = 0; a < 8; a++) {
    738 			if ((goal_f_out * (1 << a)) >= 80000000)
    739 				break;
    740 		}
    741 
    742 		/* a != 8 because sample_rate >= 2000 */
    743 
    744 		for (n = 33; n > 2; n--) {
    745 			m = (goal_f_out * n * (1 << a)) / F_REF;
    746 			if ((m > 257) || (m < 3))
    747 				continue;
    748 
    749 			pll_sample = (m * F_REF) / (n * (1 << a));
    750 			pll_sample /= 512;
    751 
    752 			/* Threshold might be good here */
    753 			error = pll_sample - rec->sample_rate;
    754 			error = ABS(error);
    755 
    756 			if (error < best_error) {
    757 				best_error = error;
    758 				best_n = n;
    759 				best_m = m;
    760 				if (error == 0) break;
    761 			}
    762 		}
    763 
    764 		best_n -= 2;
    765 		best_m -= 2;
    766 
    767 		sv_write_indirect(sc, SV_ADC_PLL_M, best_m);
    768 		sv_write_indirect(sc, SV_ADC_PLL_N,
    769 				  best_n | (a << SV_PLL_R_SHIFT));
    770 	}
    771 
    772 	return 0;
    773 }
    774 
    775 static int
    776 sv_round_blocksize(void *addr, int blk, int mode,
    777     const audio_params_t *param)
    778 {
    779 
    780 	return blk & -32;	/* keep good alignment */
    781 }
    782 
    783 static int
    784 sv_trigger_output(void *addr, void *start, void *end, int blksize,
    785     void (*intr)(void *), void *arg, const audio_params_t *param)
    786 {
    787 	struct sv_softc *sc;
    788 	struct sv_dma *p;
    789 	uint8_t mode;
    790 	int dma_count;
    791 
    792 	DPRINTFN(1, ("sv_trigger_output: sc=%p start=%p end=%p blksize=%d "
    793 	    "intr=%p(%p)\n", addr, start, end, blksize, intr, arg));
    794 	sc = addr;
    795 	sc->sc_pintr = intr;
    796 	sc->sc_parg = arg;
    797 
    798 	mode = sv_read_indirect(sc, SV_DMA_DATA_FORMAT);
    799 	mode &= ~(SV_DMAA_FORMAT16 | SV_DMAA_STEREO);
    800 	if (param->precision == 16)
    801 		mode |= SV_DMAA_FORMAT16;
    802 	if (param->channels == 2)
    803 		mode |= SV_DMAA_STEREO;
    804 	sv_write_indirect(sc, SV_DMA_DATA_FORMAT, mode);
    805 
    806 	for (p = sc->sc_dmas; p && KERNADDR(p) != start; p = p->next)
    807 		continue;
    808 	if (p == NULL) {
    809 		printf("sv_trigger_output: bad addr %p\n", start);
    810 		return EINVAL;
    811 	}
    812 
    813 	dma_count = ((char *)end - (char *)start) - 1;
    814 	DPRINTF(("sv_trigger_output: DMA start loop input addr=%x cc=%d\n",
    815 	    (int)DMAADDR(p), dma_count));
    816 
    817 	bus_space_write_4(sc->sc_iot, sc->sc_dmaa_ioh, SV_DMA_ADDR0,
    818 			  DMAADDR(p));
    819 	bus_space_write_4(sc->sc_iot, sc->sc_dmaa_ioh, SV_DMA_COUNT0,
    820 			  dma_count);
    821 	bus_space_write_1(sc->sc_iot, sc->sc_dmaa_ioh, SV_DMA_MODE,
    822 			  DMA37MD_READ | DMA37MD_LOOP);
    823 
    824 	DPRINTF(("sv_trigger_output: current addr=%x\n",
    825 	    bus_space_read_4(sc->sc_iot, sc->sc_dmaa_ioh, SV_DMA_ADDR0)));
    826 
    827 	dma_count = blksize - 1;
    828 
    829 	sv_write_indirect(sc, SV_DMAA_COUNT1, dma_count >> 8);
    830 	sv_write_indirect(sc, SV_DMAA_COUNT0, dma_count & 0xFF);
    831 
    832 	mode = sv_read_indirect(sc, SV_PLAY_RECORD_ENABLE);
    833 	sv_write_indirect(sc, SV_PLAY_RECORD_ENABLE, mode | SV_PLAY_ENABLE);
    834 
    835 	return 0;
    836 }
    837 
    838 static int
    839 sv_trigger_input(void *addr, void *start, void *end, int blksize,
    840     void (*intr)(void *), void *arg, const audio_params_t *param)
    841 {
    842 	struct sv_softc *sc;
    843 	struct sv_dma *p;
    844 	uint8_t mode;
    845 	int dma_count;
    846 
    847 	DPRINTFN(1, ("sv_trigger_input: sc=%p start=%p end=%p blksize=%d "
    848 	    "intr=%p(%p)\n", addr, start, end, blksize, intr, arg));
    849 	sc = addr;
    850 	sc->sc_rintr = intr;
    851 	sc->sc_rarg = arg;
    852 
    853 	mode = sv_read_indirect(sc, SV_DMA_DATA_FORMAT);
    854 	mode &= ~(SV_DMAC_FORMAT16 | SV_DMAC_STEREO);
    855 	if (param->precision == 16)
    856 		mode |= SV_DMAC_FORMAT16;
    857 	if (param->channels == 2)
    858 		mode |= SV_DMAC_STEREO;
    859 	sv_write_indirect(sc, SV_DMA_DATA_FORMAT, mode);
    860 
    861 	for (p = sc->sc_dmas; p && KERNADDR(p) != start; p = p->next)
    862 		continue;
    863 	if (!p) {
    864 		printf("sv_trigger_input: bad addr %p\n", start);
    865 		return EINVAL;
    866 	}
    867 
    868 	dma_count = (((char *)end - (char *)start) >> 1) - 1;
    869 	DPRINTF(("sv_trigger_input: DMA start loop input addr=%x cc=%d\n",
    870 	    (int)DMAADDR(p), dma_count));
    871 
    872 	bus_space_write_4(sc->sc_iot, sc->sc_dmac_ioh, SV_DMA_ADDR0,
    873 			  DMAADDR(p));
    874 	bus_space_write_4(sc->sc_iot, sc->sc_dmac_ioh, SV_DMA_COUNT0,
    875 			  dma_count);
    876 	bus_space_write_1(sc->sc_iot, sc->sc_dmac_ioh, SV_DMA_MODE,
    877 			  DMA37MD_WRITE | DMA37MD_LOOP);
    878 
    879 	DPRINTF(("sv_trigger_input: current addr=%x\n",
    880 	    bus_space_read_4(sc->sc_iot, sc->sc_dmac_ioh, SV_DMA_ADDR0)));
    881 
    882 	dma_count = (blksize >> 1) - 1;
    883 
    884 	sv_write_indirect(sc, SV_DMAC_COUNT1, dma_count >> 8);
    885 	sv_write_indirect(sc, SV_DMAC_COUNT0, dma_count & 0xFF);
    886 
    887 	mode = sv_read_indirect(sc, SV_PLAY_RECORD_ENABLE);
    888 	sv_write_indirect(sc, SV_PLAY_RECORD_ENABLE, mode | SV_RECORD_ENABLE);
    889 
    890 	return 0;
    891 }
    892 
    893 static int
    894 sv_halt_output(void *addr)
    895 {
    896 	struct sv_softc *sc;
    897 	uint8_t mode;
    898 
    899 	DPRINTF(("sv: sv_halt_output\n"));
    900 	sc = addr;
    901 	mode = sv_read_indirect(sc, SV_PLAY_RECORD_ENABLE);
    902 	sv_write_indirect(sc, SV_PLAY_RECORD_ENABLE, mode & ~SV_PLAY_ENABLE);
    903 	sc->sc_pintr = 0;
    904 
    905 	return 0;
    906 }
    907 
    908 static int
    909 sv_halt_input(void *addr)
    910 {
    911 	struct sv_softc *sc;
    912 	uint8_t mode;
    913 
    914 	DPRINTF(("sv: sv_halt_input\n"));
    915 	sc = addr;
    916 	mode = sv_read_indirect(sc, SV_PLAY_RECORD_ENABLE);
    917 	sv_write_indirect(sc, SV_PLAY_RECORD_ENABLE, mode & ~SV_RECORD_ENABLE);
    918 	sc->sc_rintr = 0;
    919 
    920 	return 0;
    921 }
    922 
    923 static int
    924 sv_getdev(void *addr, struct audio_device *retp)
    925 {
    926 
    927 	*retp = sv_device;
    928 	return 0;
    929 }
    930 
    931 
    932 /*
    933  * Mixer related code is here
    934  *
    935  */
    936 
    937 #define SV_INPUT_CLASS 0
    938 #define SV_OUTPUT_CLASS 1
    939 #define SV_RECORD_CLASS 2
    940 
    941 #define SV_LAST_CLASS 2
    942 
    943 static const char *mixer_classes[] =
    944 	{ AudioCinputs, AudioCoutputs, AudioCrecord };
    945 
    946 static const struct {
    947 	uint8_t   l_port;
    948 	uint8_t   r_port;
    949 	uint8_t   mask;
    950 	uint8_t   class;
    951 	const char *audio;
    952 } ports[] = {
    953   { SV_LEFT_AUX1_INPUT_CONTROL, SV_RIGHT_AUX1_INPUT_CONTROL, SV_AUX1_MASK,
    954     SV_INPUT_CLASS, "aux1" },
    955   { SV_LEFT_CD_INPUT_CONTROL, SV_RIGHT_CD_INPUT_CONTROL, SV_CD_MASK,
    956     SV_INPUT_CLASS, AudioNcd },
    957   { SV_LEFT_LINE_IN_INPUT_CONTROL, SV_RIGHT_LINE_IN_INPUT_CONTROL, SV_LINE_IN_MASK,
    958     SV_INPUT_CLASS, AudioNline },
    959   { SV_MIC_INPUT_CONTROL, 0, SV_MIC_MASK, SV_INPUT_CLASS, AudioNmicrophone },
    960   { SV_LEFT_SYNTH_INPUT_CONTROL, SV_RIGHT_SYNTH_INPUT_CONTROL,
    961     SV_SYNTH_MASK, SV_INPUT_CLASS, AudioNfmsynth },
    962   { SV_LEFT_AUX2_INPUT_CONTROL, SV_RIGHT_AUX2_INPUT_CONTROL, SV_AUX2_MASK,
    963     SV_INPUT_CLASS, "aux2" },
    964   { SV_LEFT_PCM_INPUT_CONTROL, SV_RIGHT_PCM_INPUT_CONTROL, SV_PCM_MASK,
    965     SV_INPUT_CLASS, AudioNdac },
    966   { SV_LEFT_MIXER_OUTPUT_CONTROL, SV_RIGHT_MIXER_OUTPUT_CONTROL,
    967     SV_MIXER_OUT_MASK, SV_OUTPUT_CLASS, AudioNmaster }
    968 };
    969 
    970 
    971 static const struct {
    972 	int idx;
    973 	const char *name;
    974 } record_sources[] = {
    975 	{ SV_REC_CD, AudioNcd },
    976 	{ SV_REC_DAC, AudioNdac },
    977 	{ SV_REC_AUX2, "aux2" },
    978 	{ SV_REC_LINE, AudioNline },
    979 	{ SV_REC_AUX1, "aux1" },
    980 	{ SV_REC_MIC, AudioNmicrophone },
    981 	{ SV_REC_MIXER, AudioNmixerout }
    982 };
    983 
    984 
    985 #define SV_DEVICES_PER_PORT 2
    986 #define SV_FIRST_MIXER (SV_LAST_CLASS + 1)
    987 #define SV_LAST_MIXER (SV_DEVICES_PER_PORT * (ARRAY_SIZE(ports)) + SV_LAST_CLASS)
    988 #define SV_RECORD_SOURCE (SV_LAST_MIXER + 1)
    989 #define SV_MIC_BOOST (SV_LAST_MIXER + 2)
    990 #define SV_RECORD_GAIN (SV_LAST_MIXER + 3)
    991 #define SV_SRS_MODE (SV_LAST_MIXER + 4)
    992 
    993 static int
    994 sv_query_devinfo(void *addr, mixer_devinfo_t *dip)
    995 {
    996 	int i;
    997 
    998 	/* It's a class */
    999 	if (dip->index <= SV_LAST_CLASS) {
   1000 		dip->type = AUDIO_MIXER_CLASS;
   1001 		dip->mixer_class = dip->index;
   1002 		dip->next = dip->prev = AUDIO_MIXER_LAST;
   1003 		strcpy(dip->label.name, mixer_classes[dip->index]);
   1004 		return 0;
   1005 	}
   1006 
   1007 	if (dip->index >= SV_FIRST_MIXER &&
   1008 	    dip->index <= SV_LAST_MIXER) {
   1009 		int off, mute ,idx;
   1010 
   1011 		off = dip->index - SV_FIRST_MIXER;
   1012 		mute = (off % SV_DEVICES_PER_PORT);
   1013 		idx = off / SV_DEVICES_PER_PORT;
   1014 		dip->mixer_class = ports[idx].class;
   1015 		strcpy(dip->label.name, ports[idx].audio);
   1016 
   1017 		if (!mute) {
   1018 			dip->type = AUDIO_MIXER_VALUE;
   1019 			dip->prev = AUDIO_MIXER_LAST;
   1020 			dip->next = dip->index + 1;
   1021 
   1022 			if (ports[idx].r_port != 0)
   1023 				dip->un.v.num_channels = 2;
   1024 			else
   1025 				dip->un.v.num_channels = 1;
   1026 
   1027 			strcpy(dip->un.v.units.name, AudioNvolume);
   1028 		} else {
   1029 			dip->type = AUDIO_MIXER_ENUM;
   1030 			dip->prev = dip->index - 1;
   1031 			dip->next = AUDIO_MIXER_LAST;
   1032 
   1033 			strcpy(dip->label.name, AudioNmute);
   1034 			dip->un.e.num_mem = 2;
   1035 			strcpy(dip->un.e.member[0].label.name, AudioNoff);
   1036 			dip->un.e.member[0].ord = 0;
   1037 			strcpy(dip->un.e.member[1].label.name, AudioNon);
   1038 			dip->un.e.member[1].ord = 1;
   1039 		}
   1040 
   1041 		return 0;
   1042 	}
   1043 
   1044 	switch (dip->index) {
   1045 	case SV_RECORD_SOURCE:
   1046 		dip->mixer_class = SV_RECORD_CLASS;
   1047 		dip->prev = AUDIO_MIXER_LAST;
   1048 		dip->next = SV_RECORD_GAIN;
   1049 		strcpy(dip->label.name, AudioNsource);
   1050 		dip->type = AUDIO_MIXER_ENUM;
   1051 
   1052 		dip->un.e.num_mem = ARRAY_SIZE(record_sources);
   1053 		for (i = 0; i < ARRAY_SIZE(record_sources); i++) {
   1054 			strcpy(dip->un.e.member[i].label.name,
   1055 			       record_sources[i].name);
   1056 			dip->un.e.member[i].ord = record_sources[i].idx;
   1057 		}
   1058 		return 0;
   1059 
   1060 	case SV_RECORD_GAIN:
   1061 		dip->mixer_class = SV_RECORD_CLASS;
   1062 		dip->prev = SV_RECORD_SOURCE;
   1063 		dip->next = AUDIO_MIXER_LAST;
   1064 		strcpy(dip->label.name, "gain");
   1065 		dip->type = AUDIO_MIXER_VALUE;
   1066 		dip->un.v.num_channels = 1;
   1067 		strcpy(dip->un.v.units.name, AudioNvolume);
   1068 		return 0;
   1069 
   1070 	case SV_MIC_BOOST:
   1071 		dip->mixer_class = SV_RECORD_CLASS;
   1072 		dip->prev = AUDIO_MIXER_LAST;
   1073 		dip->next = AUDIO_MIXER_LAST;
   1074 		strcpy(dip->label.name, "micboost");
   1075 		goto on_off;
   1076 
   1077 	case SV_SRS_MODE:
   1078 		dip->mixer_class = SV_OUTPUT_CLASS;
   1079 		dip->prev = dip->next = AUDIO_MIXER_LAST;
   1080 		strcpy(dip->label.name, AudioNspatial);
   1081 
   1082 	on_off:
   1083 		dip->type = AUDIO_MIXER_ENUM;
   1084 		dip->un.e.num_mem = 2;
   1085 		strcpy(dip->un.e.member[0].label.name, AudioNoff);
   1086 		dip->un.e.member[0].ord = 0;
   1087 		strcpy(dip->un.e.member[1].label.name, AudioNon);
   1088 		dip->un.e.member[1].ord = 1;
   1089 		return 0;
   1090 	}
   1091 
   1092 	return ENXIO;
   1093 }
   1094 
   1095 static int
   1096 sv_mixer_set_port(void *addr, mixer_ctrl_t *cp)
   1097 {
   1098 	struct sv_softc *sc;
   1099 	uint8_t reg;
   1100 	int idx;
   1101 
   1102 	sc = addr;
   1103 	if (cp->dev >= SV_FIRST_MIXER &&
   1104 	    cp->dev <= SV_LAST_MIXER) {
   1105 		int off, mute;
   1106 
   1107 		off = cp->dev - SV_FIRST_MIXER;
   1108 		mute = (off % SV_DEVICES_PER_PORT);
   1109 		idx = off / SV_DEVICES_PER_PORT;
   1110 
   1111 		if (mute) {
   1112 			if (cp->type != AUDIO_MIXER_ENUM)
   1113 				return EINVAL;
   1114 
   1115 			reg = sv_read_indirect(sc, ports[idx].l_port);
   1116 			if (cp->un.ord)
   1117 				reg |= SV_MUTE_BIT;
   1118 			else
   1119 				reg &= ~SV_MUTE_BIT;
   1120 			sv_write_indirect(sc, ports[idx].l_port, reg);
   1121 
   1122 			if (ports[idx].r_port) {
   1123 				reg = sv_read_indirect(sc, ports[idx].r_port);
   1124 				if (cp->un.ord)
   1125 					reg |= SV_MUTE_BIT;
   1126 				else
   1127 					reg &= ~SV_MUTE_BIT;
   1128 				sv_write_indirect(sc, ports[idx].r_port, reg);
   1129 			}
   1130 		} else {
   1131 			int  lval, rval;
   1132 
   1133 			if (cp->type != AUDIO_MIXER_VALUE)
   1134 				return EINVAL;
   1135 
   1136 			if (cp->un.value.num_channels != 1 &&
   1137 			    cp->un.value.num_channels != 2)
   1138 				return (EINVAL);
   1139 
   1140 			if (ports[idx].r_port == 0) {
   1141 				if (cp->un.value.num_channels != 1)
   1142 					return (EINVAL);
   1143 				lval = cp->un.value.level[AUDIO_MIXER_LEVEL_MONO];
   1144 				rval = 0; /* shut up GCC */
   1145 			} else {
   1146 				if (cp->un.value.num_channels != 2)
   1147 					return (EINVAL);
   1148 
   1149 				lval = cp->un.value.level[AUDIO_MIXER_LEVEL_LEFT];
   1150 				rval = cp->un.value.level[AUDIO_MIXER_LEVEL_RIGHT];
   1151 			}
   1152 
   1153 
   1154 			reg = sv_read_indirect(sc, ports[idx].l_port);
   1155 			reg &= ~(ports[idx].mask);
   1156 			lval = (AUDIO_MAX_GAIN - lval) * ports[idx].mask /
   1157 				AUDIO_MAX_GAIN;
   1158 			reg |= lval;
   1159 			sv_write_indirect(sc, ports[idx].l_port, reg);
   1160 
   1161 			if (ports[idx].r_port != 0) {
   1162 				reg = sv_read_indirect(sc, ports[idx].r_port);
   1163 				reg &= ~(ports[idx].mask);
   1164 
   1165 				rval = (AUDIO_MAX_GAIN - rval) * ports[idx].mask /
   1166 					AUDIO_MAX_GAIN;
   1167 				reg |= rval;
   1168 
   1169 				sv_write_indirect(sc, ports[idx].r_port, reg);
   1170 			}
   1171 
   1172 			sv_read_indirect(sc, ports[idx].l_port);
   1173 		}
   1174 
   1175 		return 0;
   1176 	}
   1177 
   1178 
   1179 	switch (cp->dev) {
   1180 	case SV_RECORD_SOURCE:
   1181 		if (cp->type != AUDIO_MIXER_ENUM)
   1182 			return EINVAL;
   1183 
   1184 		for (idx = 0; idx < ARRAY_SIZE(record_sources); idx++) {
   1185 			if (record_sources[idx].idx == cp->un.ord)
   1186 				goto found;
   1187 		}
   1188 
   1189 		return EINVAL;
   1190 
   1191 	found:
   1192 		reg = sv_read_indirect(sc, SV_LEFT_ADC_INPUT_CONTROL);
   1193 		reg &= ~SV_REC_SOURCE_MASK;
   1194 		reg |= (((cp->un.ord) << SV_REC_SOURCE_SHIFT) & SV_REC_SOURCE_MASK);
   1195 		sv_write_indirect(sc, SV_LEFT_ADC_INPUT_CONTROL, reg);
   1196 
   1197 		reg = sv_read_indirect(sc, SV_RIGHT_ADC_INPUT_CONTROL);
   1198 		reg &= ~SV_REC_SOURCE_MASK;
   1199 		reg |= (((cp->un.ord) << SV_REC_SOURCE_SHIFT) & SV_REC_SOURCE_MASK);
   1200 		sv_write_indirect(sc, SV_RIGHT_ADC_INPUT_CONTROL, reg);
   1201 		return 0;
   1202 
   1203 	case SV_RECORD_GAIN:
   1204 	{
   1205 		int val;
   1206 
   1207 		if (cp->type != AUDIO_MIXER_VALUE)
   1208 			return EINVAL;
   1209 
   1210 		if (cp->un.value.num_channels != 1)
   1211 			return EINVAL;
   1212 
   1213 		val = (cp->un.value.level[AUDIO_MIXER_LEVEL_MONO]
   1214 		    * SV_REC_GAIN_MASK) / AUDIO_MAX_GAIN;
   1215 
   1216 		reg = sv_read_indirect(sc, SV_LEFT_ADC_INPUT_CONTROL);
   1217 		reg &= ~SV_REC_GAIN_MASK;
   1218 		reg |= val;
   1219 		sv_write_indirect(sc, SV_LEFT_ADC_INPUT_CONTROL, reg);
   1220 
   1221 		reg = sv_read_indirect(sc, SV_RIGHT_ADC_INPUT_CONTROL);
   1222 		reg &= ~SV_REC_GAIN_MASK;
   1223 		reg |= val;
   1224 		sv_write_indirect(sc, SV_RIGHT_ADC_INPUT_CONTROL, reg);
   1225 	}
   1226 	return (0);
   1227 
   1228 	case SV_MIC_BOOST:
   1229 		if (cp->type != AUDIO_MIXER_ENUM)
   1230 			return EINVAL;
   1231 
   1232 		reg = sv_read_indirect(sc, SV_LEFT_ADC_INPUT_CONTROL);
   1233 		if (cp->un.ord) {
   1234 			reg |= SV_MIC_BOOST_BIT;
   1235 		} else {
   1236 			reg &= ~SV_MIC_BOOST_BIT;
   1237 		}
   1238 
   1239 		sv_write_indirect(sc, SV_LEFT_ADC_INPUT_CONTROL, reg);
   1240 		return 0;
   1241 
   1242 	case SV_SRS_MODE:
   1243 		if (cp->type != AUDIO_MIXER_ENUM)
   1244 			return EINVAL;
   1245 
   1246 		reg = sv_read_indirect(sc, SV_SRS_SPACE_CONTROL);
   1247 		if (cp->un.ord) {
   1248 			reg &= ~SV_SRS_SPACE_ONOFF;
   1249 		} else {
   1250 			reg |= SV_SRS_SPACE_ONOFF;
   1251 		}
   1252 
   1253 		sv_write_indirect(sc, SV_SRS_SPACE_CONTROL, reg);
   1254 		return 0;
   1255 	}
   1256 
   1257 	return EINVAL;
   1258 }
   1259 
   1260 static int
   1261 sv_mixer_get_port(void *addr, mixer_ctrl_t *cp)
   1262 {
   1263 	struct sv_softc *sc;
   1264 	int val;
   1265 	uint8_t reg;
   1266 
   1267 	sc = addr;
   1268 	if (cp->dev >= SV_FIRST_MIXER &&
   1269 	    cp->dev <= SV_LAST_MIXER) {
   1270 		int off = cp->dev - SV_FIRST_MIXER;
   1271 		int mute = (off % 2);
   1272 		int idx = off / 2;
   1273 
   1274 		off = cp->dev - SV_FIRST_MIXER;
   1275 		mute = (off % 2);
   1276 		idx = off / 2;
   1277 		if (mute) {
   1278 			if (cp->type != AUDIO_MIXER_ENUM)
   1279 				return EINVAL;
   1280 
   1281 			reg = sv_read_indirect(sc, ports[idx].l_port);
   1282 			cp->un.ord = ((reg & SV_MUTE_BIT) ? 1 : 0);
   1283 		} else {
   1284 			if (cp->type != AUDIO_MIXER_VALUE)
   1285 				return EINVAL;
   1286 
   1287 			if (cp->un.value.num_channels != 1 &&
   1288 			    cp->un.value.num_channels != 2)
   1289 				return EINVAL;
   1290 
   1291 			if ((ports[idx].r_port == 0 &&
   1292 			     cp->un.value.num_channels != 1) ||
   1293 			    (ports[idx].r_port != 0 &&
   1294 			     cp->un.value.num_channels != 2))
   1295 				return EINVAL;
   1296 
   1297 			reg = sv_read_indirect(sc, ports[idx].l_port);
   1298 			reg &= ports[idx].mask;
   1299 
   1300 			val = AUDIO_MAX_GAIN - ((reg * AUDIO_MAX_GAIN) / ports[idx].mask);
   1301 
   1302 			if (ports[idx].r_port != 0) {
   1303 				cp->un.value.level[AUDIO_MIXER_LEVEL_LEFT] = val;
   1304 
   1305 				reg = sv_read_indirect(sc, ports[idx].r_port);
   1306 				reg &= ports[idx].mask;
   1307 
   1308 				val = AUDIO_MAX_GAIN - ((reg * AUDIO_MAX_GAIN)
   1309 				    / ports[idx].mask);
   1310 				cp->un.value.level[AUDIO_MIXER_LEVEL_RIGHT] = val;
   1311 			} else
   1312 				cp->un.value.level[AUDIO_MIXER_LEVEL_MONO] = val;
   1313 		}
   1314 
   1315 		return 0;
   1316 	}
   1317 
   1318 	switch (cp->dev) {
   1319 	case SV_RECORD_SOURCE:
   1320 		if (cp->type != AUDIO_MIXER_ENUM)
   1321 			return EINVAL;
   1322 
   1323 		reg = sv_read_indirect(sc, SV_LEFT_ADC_INPUT_CONTROL);
   1324 		cp->un.ord = ((reg & SV_REC_SOURCE_MASK) >> SV_REC_SOURCE_SHIFT);
   1325 
   1326 		return 0;
   1327 
   1328 	case SV_RECORD_GAIN:
   1329 		if (cp->type != AUDIO_MIXER_VALUE)
   1330 			return EINVAL;
   1331 		if (cp->un.value.num_channels != 1)
   1332 			return EINVAL;
   1333 
   1334 		reg = sv_read_indirect(sc, SV_LEFT_ADC_INPUT_CONTROL) & SV_REC_GAIN_MASK;
   1335 		cp->un.value.level[AUDIO_MIXER_LEVEL_MONO] =
   1336 			(((unsigned int)reg) * AUDIO_MAX_GAIN) / SV_REC_GAIN_MASK;
   1337 
   1338 		return 0;
   1339 
   1340 	case SV_MIC_BOOST:
   1341 		if (cp->type != AUDIO_MIXER_ENUM)
   1342 			return EINVAL;
   1343 		reg = sv_read_indirect(sc, SV_LEFT_ADC_INPUT_CONTROL);
   1344 		cp->un.ord = ((reg & SV_MIC_BOOST_BIT) ? 1 : 0);
   1345 		return 0;
   1346 
   1347 	case SV_SRS_MODE:
   1348 		if (cp->type != AUDIO_MIXER_ENUM)
   1349 			return EINVAL;
   1350 		reg = sv_read_indirect(sc, SV_SRS_SPACE_CONTROL);
   1351 		cp->un.ord = ((reg & SV_SRS_SPACE_ONOFF) ? 0 : 1);
   1352 		return 0;
   1353 	}
   1354 
   1355 	return EINVAL;
   1356 }
   1357 
   1358 static void
   1359 sv_init_mixer(struct sv_softc *sc)
   1360 {
   1361 	mixer_ctrl_t cp;
   1362 	int i;
   1363 
   1364 	cp.type = AUDIO_MIXER_ENUM;
   1365 	cp.dev = SV_SRS_MODE;
   1366 	cp.un.ord = 0;
   1367 
   1368 	sv_mixer_set_port(sc, &cp);
   1369 
   1370 	for (i = 0; i < ARRAY_SIZE(ports); i++) {
   1371 		if (ports[i].audio == AudioNdac) {
   1372 			cp.type = AUDIO_MIXER_ENUM;
   1373 			cp.dev = SV_FIRST_MIXER + i * SV_DEVICES_PER_PORT + 1;
   1374 			cp.un.ord = 0;
   1375 			sv_mixer_set_port(sc, &cp);
   1376 			break;
   1377 		}
   1378 	}
   1379 }
   1380 
   1381 static void *
   1382 sv_malloc(void *addr, int direction, size_t size,
   1383     struct malloc_type *pool, int flags)
   1384 {
   1385 	struct sv_softc *sc;
   1386 	struct sv_dma *p;
   1387 	int error;
   1388 
   1389 	sc = addr;
   1390 	p = malloc(sizeof(*p), pool, flags);
   1391 	if (p == NULL)
   1392 		return NULL;
   1393 	error = sv_allocmem(sc, size, 16, direction, p);
   1394 	if (error) {
   1395 		free(p, pool);
   1396 		return 0;
   1397 	}
   1398 	p->next = sc->sc_dmas;
   1399 	sc->sc_dmas = p;
   1400 	return KERNADDR(p);
   1401 }
   1402 
   1403 static void
   1404 sv_free(void *addr, void *ptr, struct malloc_type *pool)
   1405 {
   1406 	struct sv_softc *sc;
   1407 	struct sv_dma **pp, *p;
   1408 
   1409 	sc = addr;
   1410 	for (pp = &sc->sc_dmas; (p = *pp) != NULL; pp = &p->next) {
   1411 		if (KERNADDR(p) == ptr) {
   1412 			sv_freemem(sc, p);
   1413 			*pp = p->next;
   1414 			free(p, pool);
   1415 			return;
   1416 		}
   1417 	}
   1418 }
   1419 
   1420 static size_t
   1421 sv_round_buffersize(void *addr, int direction, size_t size)
   1422 {
   1423 
   1424 	return size;
   1425 }
   1426 
   1427 static paddr_t
   1428 sv_mappage(void *addr, void *mem, off_t off, int prot)
   1429 {
   1430 	struct sv_softc *sc;
   1431 	struct sv_dma *p;
   1432 
   1433 	sc = addr;
   1434 	if (off < 0)
   1435 		return -1;
   1436 	for (p = sc->sc_dmas; p && KERNADDR(p) != mem; p = p->next)
   1437 		continue;
   1438 	if (p == NULL)
   1439 		return -1;
   1440 	return bus_dmamem_mmap(sc->sc_dmatag, p->segs, p->nsegs,
   1441 			       off, prot, BUS_DMA_WAITOK);
   1442 }
   1443 
   1444 static int
   1445 sv_get_props(void *addr)
   1446 {
   1447 	return AUDIO_PROP_MMAP | AUDIO_PROP_INDEPENDENT | AUDIO_PROP_FULLDUPLEX;
   1448 }
   1449