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sv.c revision 1.29
      1 /*      $NetBSD: sv.c,v 1.29 2005/04/30 15:24:51 hannken 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 1.29 2005/04/30 15:24:51 hannken 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 int	sv_match(struct device *, struct cfdata *, void *);
    122 void	sv_attach(struct device *, struct device *, void *);
    123 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 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 int	sv_allocmem(struct sv_softc *, size_t, size_t, int, struct sv_dma *);
    148 int	sv_freemem(struct sv_softc *, struct sv_dma *);
    149 
    150 int	sv_open(void *, int);
    151 int	sv_query_encoding(void *, struct audio_encoding *);
    152 int	sv_set_params(void *, int, int, audio_params_t *, audio_params_t *,
    153 	    stream_filter_list_t *, stream_filter_list_t *);
    154 int	sv_round_blocksize(void *, int, int, const audio_params_t *);
    155 int	sv_trigger_output(void *, void *, void *, int, void (*)(void *),
    156 	    void *, const audio_params_t *);
    157 int	sv_trigger_input(void *, void *, void *, int, void (*)(void *),
    158 	    void *, const audio_params_t *);
    159 int	sv_halt_output(void *);
    160 int	sv_halt_input(void *);
    161 int	sv_getdev(void *, struct audio_device *);
    162 int	sv_mixer_set_port(void *, mixer_ctrl_t *);
    163 int	sv_mixer_get_port(void *, mixer_ctrl_t *);
    164 int	sv_query_devinfo(void *, mixer_devinfo_t *);
    165 void   *sv_malloc(void *, int, size_t, struct malloc_type *, int);
    166 void	sv_free(void *, void *, struct malloc_type *);
    167 size_t	sv_round_buffersize(void *, int, size_t);
    168 paddr_t	sv_mappage(void *, void *, off_t, int);
    169 int	sv_get_props(void *);
    170 
    171 #ifdef AUDIO_DEBUG
    172 void    sv_dumpregs(struct sv_softc *sc);
    173 #endif
    174 
    175 const struct audio_hw_if sv_hw_if = {
    176 	sv_open,
    177 	NULL,			/* close */
    178 	NULL,
    179 	sv_query_encoding,
    180 	sv_set_params,
    181 	sv_round_blocksize,
    182 	NULL,
    183 	NULL,
    184 	NULL,
    185 	NULL,
    186 	NULL,
    187 	sv_halt_output,
    188 	sv_halt_input,
    189 	NULL,
    190 	sv_getdev,
    191 	NULL,
    192 	sv_mixer_set_port,
    193 	sv_mixer_get_port,
    194 	sv_query_devinfo,
    195 	sv_malloc,
    196 	sv_free,
    197 	sv_round_buffersize,
    198 	sv_mappage,
    199 	sv_get_props,
    200 	sv_trigger_output,
    201 	sv_trigger_input,
    202 	NULL,
    203 };
    204 
    205 #define SV_NFORMATS	4
    206 static const struct audio_format sv_formats[SV_NFORMATS] = {
    207 	{NULL, AUMODE_PLAY | AUMODE_RECORD, AUDIO_ENCODING_SLINEAR_LE, 16, 16,
    208 	 2, AUFMT_STEREO, 0, {2000, 48000}},
    209 	{NULL, AUMODE_PLAY | AUMODE_RECORD, AUDIO_ENCODING_SLINEAR_LE, 16, 16,
    210 	 1, AUFMT_MONAURAL, 0, {2000, 48000}},
    211 	{NULL, AUMODE_PLAY | AUMODE_RECORD, AUDIO_ENCODING_ULINEAR_LE, 8, 8,
    212 	 2, AUFMT_STEREO, 0, {2000, 48000}},
    213 	{NULL, AUMODE_PLAY | AUMODE_RECORD, AUDIO_ENCODING_ULINEAR_LE, 8, 8,
    214 	 1, AUFMT_MONAURAL, 0, {2000, 48000}},
    215 };
    216 
    217 
    218 static uint8_t sv_read(struct sv_softc *, uint8_t);
    219 static uint8_t sv_read_indirect(struct sv_softc *, uint8_t);
    220 static void sv_write(struct sv_softc *, uint8_t, uint8_t);
    221 static void sv_write_indirect(struct sv_softc *, uint8_t, uint8_t);
    222 static void sv_init_mixer(struct sv_softc *);
    223 
    224 static void sv_defer(struct device *self);
    225 
    226 static void
    227 sv_write(struct sv_softc *sc, uint8_t reg, uint8_t val)
    228 {
    229 
    230 	DPRINTFN(8,("sv_write(0x%x, 0x%x)\n", reg, val));
    231 	bus_space_write_1(sc->sc_iot, sc->sc_ioh, reg, val);
    232 }
    233 
    234 static uint8_t
    235 sv_read(struct sv_softc *sc, uint8_t reg)
    236 {
    237 	uint8_t val;
    238 
    239 	val = bus_space_read_1(sc->sc_iot, sc->sc_ioh, reg);
    240 	DPRINTFN(8,("sv_read(0x%x) = 0x%x\n", reg, val));
    241 	return val;
    242 }
    243 
    244 static uint8_t
    245 sv_read_indirect(struct sv_softc *sc, uint8_t reg)
    246 {
    247 	uint8_t val;
    248 	int s;
    249 
    250 	s = splaudio();
    251 	sv_write(sc, SV_CODEC_IADDR, reg & SV_IADDR_MASK);
    252 	val = sv_read(sc, SV_CODEC_IDATA);
    253 	splx(s);
    254 	return val;
    255 }
    256 
    257 static void
    258 sv_write_indirect(struct sv_softc *sc, uint8_t reg, uint8_t val)
    259 {
    260 	uint8_t iaddr;
    261 	int s;
    262 
    263 	iaddr = reg & SV_IADDR_MASK;
    264 	s = splaudio();
    265 	if (reg == SV_DMA_DATA_FORMAT)
    266 		iaddr |= SV_IADDR_MCE;
    267 
    268 	sv_write(sc, SV_CODEC_IADDR, iaddr);
    269 	sv_write(sc, SV_CODEC_IDATA, val);
    270 	splx(s);
    271 }
    272 
    273 int
    274 sv_match(struct device *parent, struct cfdata *match, void *aux)
    275 {
    276 	struct pci_attach_args *pa;
    277 
    278 	pa = aux;
    279 	if (PCI_VENDOR(pa->pa_id) == PCI_VENDOR_S3 &&
    280 	    PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_S3_SONICVIBES)
    281 		return 1;
    282 
    283 	return 0;
    284 }
    285 
    286 int pci_alloc_io(pci_chipset_tag_t, pcitag_t, int,
    287 		 bus_space_tag_t, bus_size_t,
    288 		 bus_size_t, bus_size_t, int,
    289 		 bus_space_handle_t *);
    290 
    291 static pcireg_t pci_io_alloc_low, pci_io_alloc_high;
    292 
    293 int
    294 pci_alloc_io(pci_chipset_tag_t pc, pcitag_t pt, int pcioffs,
    295     bus_space_tag_t iot, bus_size_t size, bus_size_t align,
    296     bus_size_t bound, int flags, bus_space_handle_t *ioh)
    297 {
    298 	bus_addr_t addr;
    299 	int error;
    300 
    301 	error = bus_space_alloc(iot, pci_io_alloc_low, pci_io_alloc_high,
    302 				size, align, bound, flags, &addr, ioh);
    303 	if (error)
    304 		return error;
    305 
    306 	pci_conf_write(pc, pt, pcioffs, addr);
    307 	return 0;
    308 }
    309 
    310 /*
    311  * Allocate IO addresses when all other configuration is done.
    312  */
    313 void
    314 sv_defer(struct device *self)
    315 {
    316 	struct sv_softc *sc;
    317 	pci_chipset_tag_t pc;
    318 	pcitag_t pt;
    319 	pcireg_t dmaio;
    320 
    321 	sc = (struct sv_softc *)self;
    322 	pc = sc->sc_pa.pa_pc;
    323 	pt = sc->sc_pa.pa_tag;
    324 	DPRINTF(("sv_defer: %p\n", sc));
    325 
    326 	/* XXX
    327 	 * Get a reasonable default for the I/O range.
    328 	 * Assume the range around SB_PORTBASE is valid on this PCI bus.
    329 	 */
    330 	pci_io_alloc_low = pci_conf_read(pc, pt, SV_SB_PORTBASE_SLOT);
    331 	pci_io_alloc_high = pci_io_alloc_low + 0x1000;
    332 
    333 	if (pci_alloc_io(pc, pt, SV_DMAA_CONFIG_OFF,
    334 			  sc->sc_iot, SV_DMAA_SIZE, SV_DMAA_ALIGN, 0,
    335 			  0, &sc->sc_dmaa_ioh)) {
    336 		printf("sv_attach: cannot allocate DMA A range\n");
    337 		return;
    338 	}
    339 	dmaio = pci_conf_read(pc, pt, SV_DMAA_CONFIG_OFF);
    340 	DPRINTF(("sv_attach: addr a dmaio=0x%lx\n", (u_long)dmaio));
    341 	pci_conf_write(pc, pt, SV_DMAA_CONFIG_OFF,
    342 		       dmaio | SV_DMA_CHANNEL_ENABLE | SV_DMAA_EXTENDED_ADDR);
    343 
    344 	if (pci_alloc_io(pc, pt, SV_DMAC_CONFIG_OFF,
    345 			  sc->sc_iot, SV_DMAC_SIZE, SV_DMAC_ALIGN, 0,
    346 			  0, &sc->sc_dmac_ioh)) {
    347 		printf("sv_attach: cannot allocate DMA C range\n");
    348 		return;
    349 	}
    350 	dmaio = pci_conf_read(pc, pt, SV_DMAC_CONFIG_OFF);
    351 	DPRINTF(("sv_attach: addr c dmaio=0x%lx\n", (u_long)dmaio));
    352 	pci_conf_write(pc, pt, SV_DMAC_CONFIG_OFF,
    353 		       dmaio | SV_DMA_CHANNEL_ENABLE);
    354 
    355 	sc->sc_dmaset = 1;
    356 }
    357 
    358 void
    359 sv_attach(struct device *parent, struct device *self, void *aux)
    360 {
    361 	struct sv_softc *sc;
    362 	struct pci_attach_args *pa;
    363 	pci_chipset_tag_t pc;
    364 	pcitag_t pt;
    365 	pci_intr_handle_t ih;
    366 	pcireg_t csr;
    367 	char const *intrstr;
    368 	uint8_t reg;
    369 	struct audio_attach_args arg;
    370 
    371 	sc = (struct sv_softc *)self;
    372 	pa = aux;
    373 	pc = pa->pa_pc;
    374 	pt = pa->pa_tag;
    375 	printf ("\n");
    376 
    377 	/* Map I/O registers */
    378 	if (pci_mapreg_map(pa, SV_ENHANCED_PORTBASE_SLOT,
    379 			   PCI_MAPREG_TYPE_IO, 0,
    380 			   &sc->sc_iot, &sc->sc_ioh, NULL, NULL)) {
    381 		printf("%s: can't map enhanced i/o space\n",
    382 		       sc->sc_dev.dv_xname);
    383 		return;
    384 	}
    385 	if (pci_mapreg_map(pa, SV_FM_PORTBASE_SLOT,
    386 			   PCI_MAPREG_TYPE_IO, 0,
    387 			   &sc->sc_opliot, &sc->sc_oplioh, NULL, NULL)) {
    388 		printf("%s: can't map FM i/o space\n", sc->sc_dev.dv_xname);
    389 		return;
    390 	}
    391 	if (pci_mapreg_map(pa, SV_MIDI_PORTBASE_SLOT,
    392 			   PCI_MAPREG_TYPE_IO, 0,
    393 			   &sc->sc_midiiot, &sc->sc_midiioh, NULL, NULL)) {
    394 		printf("%s: can't map MIDI i/o space\n", sc->sc_dev.dv_xname);
    395 		return;
    396 	}
    397 	DPRINTF(("sv: IO ports: enhanced=0x%x, OPL=0x%x, MIDI=0x%x\n",
    398 		 (int)sc->sc_ioh, (int)sc->sc_oplioh, (int)sc->sc_midiioh));
    399 
    400 #if defined(alpha)
    401 	/* XXX Force allocation through the SGMAP. */
    402 	sc->sc_dmatag = alphabus_dma_get_tag(pa->pa_dmat, ALPHA_BUS_ISA);
    403 #elif defined(i386) && NISA > 0
    404 /* XXX
    405  * The SonicVibes DMA is broken and only works on 24-bit addresses.
    406  * As long as bus_dmamem_alloc_range() is missing we use the ISA
    407  * DMA tag on i386.
    408  */
    409 	sc->sc_dmatag = &isa_bus_dma_tag;
    410 #else
    411 	sc->sc_dmatag = pa->pa_dmat;
    412 #endif
    413 
    414 	pci_conf_write(pc, pt, SV_DMAA_CONFIG_OFF, SV_DMAA_EXTENDED_ADDR);
    415 	pci_conf_write(pc, pt, SV_DMAC_CONFIG_OFF, 0);
    416 
    417 	/* Enable the device. */
    418 	csr = pci_conf_read(pc, pt, PCI_COMMAND_STATUS_REG);
    419 	pci_conf_write(pc, pt, PCI_COMMAND_STATUS_REG,
    420 		       csr | PCI_COMMAND_MASTER_ENABLE);
    421 
    422 	sv_write_indirect(sc, SV_ANALOG_POWER_DOWN_CONTROL, 0);
    423 	sv_write_indirect(sc, SV_DIGITAL_POWER_DOWN_CONTROL, 0);
    424 
    425 	/* initialize codec registers */
    426 	reg = sv_read(sc, SV_CODEC_CONTROL);
    427 	reg |= SV_CTL_RESET;
    428 	sv_write(sc, SV_CODEC_CONTROL, reg);
    429 	delay(50);
    430 
    431 	reg = sv_read(sc, SV_CODEC_CONTROL);
    432 	reg &= ~SV_CTL_RESET;
    433 	reg |= SV_CTL_INTA | SV_CTL_ENHANCED;
    434 
    435 	/* This write clears the reset */
    436 	sv_write(sc, SV_CODEC_CONTROL, reg);
    437 	delay(50);
    438 
    439 	/* This write actually shoves the new values in */
    440 	sv_write(sc, SV_CODEC_CONTROL, reg);
    441 
    442 	DPRINTF(("sv_attach: control=0x%x\n", sv_read(sc, SV_CODEC_CONTROL)));
    443 
    444 	/* Enable DMA interrupts */
    445 	reg = sv_read(sc, SV_CODEC_INTMASK);
    446 	reg &= ~(SV_INTMASK_DMAA | SV_INTMASK_DMAC);
    447 	reg |= SV_INTMASK_UD | SV_INTMASK_SINT | SV_INTMASK_MIDI;
    448 	sv_write(sc, SV_CODEC_INTMASK, reg);
    449 
    450 	sv_read(sc, SV_CODEC_STATUS);
    451 
    452 	/* Map and establish the interrupt. */
    453 	if (pci_intr_map(pa, &ih)) {
    454 		printf("%s: couldn't map interrupt\n", sc->sc_dev.dv_xname);
    455 		return;
    456 	}
    457 	intrstr = pci_intr_string(pc, ih);
    458 	sc->sc_ih = pci_intr_establish(pc, ih, IPL_AUDIO, sv_intr, sc);
    459 	if (sc->sc_ih == NULL) {
    460 		printf("%s: couldn't establish interrupt",
    461 		       sc->sc_dev.dv_xname);
    462 		if (intrstr != NULL)
    463 			printf(" at %s", intrstr);
    464 		printf("\n");
    465 		return;
    466 	}
    467 	printf("%s: interrupting at %s\n", sc->sc_dev.dv_xname, intrstr);
    468 	printf("%s: rev %d", sc->sc_dev.dv_xname,
    469 	       sv_read_indirect(sc, SV_REVISION_LEVEL));
    470 	if (sv_read(sc, SV_CODEC_CONTROL) & SV_CTL_MD1)
    471 		printf(", reverb SRAM present");
    472 	if (!(sv_read_indirect(sc, SV_WAVETABLE_SOURCE_SELECT) & SV_WSS_WT0))
    473 		printf(", wavetable ROM present");
    474 	printf("\n");
    475 
    476 	sv_init_mixer(sc);
    477 
    478 	audio_attach_mi(&sv_hw_if, sc, &sc->sc_dev);
    479 
    480 	arg.type = AUDIODEV_TYPE_OPL;
    481 	arg.hwif = 0;
    482 	arg.hdl = 0;
    483 	(void)config_found(&sc->sc_dev, &arg, audioprint);
    484 
    485 	sc->sc_pa = *pa;	/* for deferred setup */
    486 	config_defer(self, sv_defer);
    487 }
    488 
    489 #ifdef AUDIO_DEBUG
    490 void
    491 sv_dumpregs(struct sv_softc *sc)
    492 {
    493 	int idx;
    494 
    495 #if 0
    496 	for (idx = 0; idx < 0x50; idx += 4)
    497 		printf ("%02x = %x\n", idx,
    498 			pci_conf_read(pa->pa_pc, pa->pa_tag, idx));
    499 #endif
    500 
    501 	for (idx = 0; idx < 6; idx++)
    502 		printf ("REG %02x = %02x\n", idx, sv_read(sc, idx));
    503 
    504 	for (idx = 0; idx < 0x32; idx++)
    505 		printf ("IREG %02x = %02x\n", idx, sv_read_indirect(sc, idx));
    506 
    507 	for (idx = 0; idx < 0x10; idx++)
    508 		printf ("DMA %02x = %02x\n", idx,
    509 			bus_space_read_1(sc->sc_iot, sc->sc_dmaa_ioh, idx));
    510 }
    511 #endif
    512 
    513 int
    514 sv_intr(void *p)
    515 {
    516 	struct sv_softc *sc;
    517 	uint8_t intr;
    518 
    519 	sc = p;
    520 	intr = sv_read(sc, SV_CODEC_STATUS);
    521 	DPRINTFN(5,("sv_intr: intr=0x%x\n", intr));
    522 
    523 	if (!(intr & (SV_INTSTATUS_DMAA | SV_INTSTATUS_DMAC)))
    524 		return 0;
    525 
    526 	if (intr & SV_INTSTATUS_DMAA) {
    527 		if (sc->sc_pintr)
    528 			sc->sc_pintr(sc->sc_parg);
    529 	}
    530 
    531 	if (intr & SV_INTSTATUS_DMAC) {
    532 		if (sc->sc_rintr)
    533 			sc->sc_rintr(sc->sc_rarg);
    534 	}
    535 
    536 	return 1;
    537 }
    538 
    539 int
    540 sv_allocmem(struct sv_softc *sc, size_t size, size_t align,
    541     int direction, struct sv_dma *p)
    542 {
    543 	int error;
    544 
    545 	p->size = size;
    546 	error = bus_dmamem_alloc(sc->sc_dmatag, p->size, align, 0,
    547 	    p->segs, ARRAY_SIZE(p->segs), &p->nsegs, BUS_DMA_NOWAIT);
    548 	if (error)
    549 		return error;
    550 
    551 	error = bus_dmamem_map(sc->sc_dmatag, p->segs, p->nsegs, p->size,
    552 	    &p->addr, BUS_DMA_NOWAIT|BUS_DMA_COHERENT);
    553 	if (error)
    554 		goto free;
    555 
    556 	error = bus_dmamap_create(sc->sc_dmatag, p->size, 1, p->size,
    557 	    0, BUS_DMA_NOWAIT, &p->map);
    558 	if (error)
    559 		goto unmap;
    560 
    561 	error = bus_dmamap_load(sc->sc_dmatag, p->map, p->addr, p->size, NULL,
    562 	    BUS_DMA_NOWAIT | (direction == AUMODE_RECORD) ? BUS_DMA_READ : BUS_DMA_WRITE);
    563 	if (error)
    564 		goto destroy;
    565 	DPRINTF(("sv_allocmem: pa=%lx va=%lx pba=%lx\n",
    566 	    (long)p->segs[0].ds_addr, (long)KERNADDR(p), (long)DMAADDR(p)));
    567 	return 0;
    568 
    569 destroy:
    570 	bus_dmamap_destroy(sc->sc_dmatag, p->map);
    571 unmap:
    572 	bus_dmamem_unmap(sc->sc_dmatag, p->addr, p->size);
    573 free:
    574 	bus_dmamem_free(sc->sc_dmatag, p->segs, p->nsegs);
    575 	return error;
    576 }
    577 
    578 int
    579 sv_freemem(struct sv_softc *sc, struct sv_dma *p)
    580 {
    581 
    582 	bus_dmamap_unload(sc->sc_dmatag, p->map);
    583 	bus_dmamap_destroy(sc->sc_dmatag, p->map);
    584 	bus_dmamem_unmap(sc->sc_dmatag, p->addr, p->size);
    585 	bus_dmamem_free(sc->sc_dmatag, p->segs, p->nsegs);
    586 	return 0;
    587 }
    588 
    589 int
    590 sv_open(void *addr, int flags)
    591 {
    592 	struct sv_softc *sc;
    593 
    594 	sc = addr;
    595 	DPRINTF(("sv_open\n"));
    596 	if (!sc->sc_dmaset)
    597 		return ENXIO;
    598 
    599 	return 0;
    600 }
    601 
    602 int
    603 sv_query_encoding(void *addr, struct audio_encoding *fp)
    604 {
    605 
    606 	switch (fp->index) {
    607 	case 0:
    608 		strcpy(fp->name, AudioEulinear);
    609 		fp->encoding = AUDIO_ENCODING_ULINEAR;
    610 		fp->precision = 8;
    611 		fp->flags = 0;
    612 		return 0;
    613 	case 1:
    614 		strcpy(fp->name, AudioEmulaw);
    615 		fp->encoding = AUDIO_ENCODING_ULAW;
    616 		fp->precision = 8;
    617 		fp->flags = AUDIO_ENCODINGFLAG_EMULATED;
    618 		return 0;
    619 	case 2:
    620 		strcpy(fp->name, AudioEalaw);
    621 		fp->encoding = AUDIO_ENCODING_ALAW;
    622 		fp->precision = 8;
    623 		fp->flags = AUDIO_ENCODINGFLAG_EMULATED;
    624 		return 0;
    625 	case 3:
    626 		strcpy(fp->name, AudioEslinear);
    627 		fp->encoding = AUDIO_ENCODING_SLINEAR;
    628 		fp->precision = 8;
    629 		fp->flags = AUDIO_ENCODINGFLAG_EMULATED;
    630 		return 0;
    631 	case 4:
    632 		strcpy(fp->name, AudioEslinear_le);
    633 		fp->encoding = AUDIO_ENCODING_SLINEAR_LE;
    634 		fp->precision = 16;
    635 		fp->flags = 0;
    636 		return 0;
    637 	case 5:
    638 		strcpy(fp->name, AudioEulinear_le);
    639 		fp->encoding = AUDIO_ENCODING_ULINEAR_LE;
    640 		fp->precision = 16;
    641 		fp->flags = AUDIO_ENCODINGFLAG_EMULATED;
    642 		return 0;
    643 	case 6:
    644 		strcpy(fp->name, AudioEslinear_be);
    645 		fp->encoding = AUDIO_ENCODING_SLINEAR_BE;
    646 		fp->precision = 16;
    647 		fp->flags = AUDIO_ENCODINGFLAG_EMULATED;
    648 		return 0;
    649 	case 7:
    650 		strcpy(fp->name, AudioEulinear_be);
    651 		fp->encoding = AUDIO_ENCODING_ULINEAR_BE;
    652 		fp->precision = 16;
    653 		fp->flags = AUDIO_ENCODINGFLAG_EMULATED;
    654 		return 0;
    655 	default:
    656 		return EINVAL;
    657 	}
    658 }
    659 
    660 int
    661 sv_set_params(void *addr, int setmode, int usemode, audio_params_t *play,
    662     audio_params_t *rec, stream_filter_list_t *pfil, stream_filter_list_t *rfil)
    663 {
    664 	struct sv_softc *sc;
    665 	audio_params_t *p;
    666 	uint32_t val;
    667 
    668 	sc = addr;
    669 	p = NULL;
    670 	/*
    671 	 * This device only has one clock, so make the sample rates match.
    672 	 */
    673 	if (play->sample_rate != rec->sample_rate &&
    674 	    usemode == (AUMODE_PLAY | AUMODE_RECORD)) {
    675 		if (setmode == AUMODE_PLAY) {
    676 			rec->sample_rate = play->sample_rate;
    677 			setmode |= AUMODE_RECORD;
    678 		} else if (setmode == AUMODE_RECORD) {
    679 			play->sample_rate = rec->sample_rate;
    680 			setmode |= AUMODE_PLAY;
    681 		} else
    682 			return EINVAL;
    683 	}
    684 
    685 	if (setmode & AUMODE_RECORD) {
    686 		p = rec;
    687 		if (auconv_set_converter(sv_formats, SV_NFORMATS,
    688 					 AUMODE_RECORD, rec, FALSE, rfil) < 0)
    689 			return EINVAL;
    690 	}
    691 	if (setmode & AUMODE_PLAY) {
    692 		p = play;
    693 		if (auconv_set_converter(sv_formats, SV_NFORMATS,
    694 					 AUMODE_PLAY, play, FALSE, pfil) < 0)
    695 			return EINVAL;
    696 	}
    697 
    698 	if (p == NULL)
    699 		return 0;
    700 
    701 	val = p->sample_rate * 65536 / 48000;
    702 	/*
    703 	 * If the sample rate is exactly 48KHz, the fraction would overflow the
    704 	 * register, so we have to bias it.  This causes a little clock drift.
    705 	 * The drift is below normal crystal tolerance (.0001%), so although
    706 	 * this seems a little silly, we can pretty much ignore it.
    707 	 * (I tested the output speed with values of 1-20, just to be sure this
    708 	 * register isn't *supposed* to have a bias.  It isn't.)
    709 	 * - mycroft
    710 	 */
    711 	if (val > 65535)
    712 		val = 65535;
    713 
    714 	sv_write_indirect(sc, SV_PCM_SAMPLE_RATE_0, val & 0xff);
    715 	sv_write_indirect(sc, SV_PCM_SAMPLE_RATE_1, val >> 8);
    716 
    717 #define F_REF 24576000
    718 
    719 #define ABS(x) (((x) < 0) ? (-x) : (x))
    720 
    721 	if (setmode & AUMODE_RECORD) {
    722 		/* The ADC reference frequency (f_out) is 512 * sample rate */
    723 
    724 		/* f_out is dervied from the 24.576MHz crystal by three values:
    725 		   M & N & R. The equation is as follows:
    726 
    727 		   f_out = (m + 2) * f_ref / ((n + 2) * (2 ^ a))
    728 
    729 		   with the constraint that:
    730 
    731 		   80 MHz < (m + 2) / (n + 2) * f_ref <= 150MHz
    732 		   and n, m >= 1
    733 		*/
    734 
    735 		int  goal_f_out;
    736 		int  a, n, m, best_n, best_m, best_error;
    737 		int  pll_sample;
    738 		int  error;
    739 
    740 		goal_f_out = 512 * rec->sample_rate;
    741 		best_n = 0;
    742 		best_m = 0;
    743 		best_error = 10000000;
    744 		for (a = 0; a < 8; a++) {
    745 			if ((goal_f_out * (1 << a)) >= 80000000)
    746 				break;
    747 		}
    748 
    749 		/* a != 8 because sample_rate >= 2000 */
    750 
    751 		for (n = 33; n > 2; n--) {
    752 			m = (goal_f_out * n * (1 << a)) / F_REF;
    753 			if ((m > 257) || (m < 3))
    754 				continue;
    755 
    756 			pll_sample = (m * F_REF) / (n * (1 << a));
    757 			pll_sample /= 512;
    758 
    759 			/* Threshold might be good here */
    760 			error = pll_sample - rec->sample_rate;
    761 			error = ABS(error);
    762 
    763 			if (error < best_error) {
    764 				best_error = error;
    765 				best_n = n;
    766 				best_m = m;
    767 				if (error == 0) break;
    768 			}
    769 		}
    770 
    771 		best_n -= 2;
    772 		best_m -= 2;
    773 
    774 		sv_write_indirect(sc, SV_ADC_PLL_M, best_m);
    775 		sv_write_indirect(sc, SV_ADC_PLL_N,
    776 				  best_n | (a << SV_PLL_R_SHIFT));
    777 	}
    778 
    779 	return 0;
    780 }
    781 
    782 int
    783 sv_round_blocksize(void *addr, int blk, int mode, const audio_params_t *param)
    784 {
    785 
    786 	return blk & -32;	/* keep good alignment */
    787 }
    788 
    789 int
    790 sv_trigger_output(void *addr, void *start, void *end, int blksize,
    791     void (*intr)(void *), void *arg, const audio_params_t *param)
    792 {
    793 	struct sv_softc *sc;
    794 	struct sv_dma *p;
    795 	uint8_t mode;
    796 	int dma_count;
    797 
    798 	DPRINTFN(1, ("sv_trigger_output: sc=%p start=%p end=%p blksize=%d "
    799 	    "intr=%p(%p)\n", addr, start, end, blksize, intr, arg));
    800 	sc = addr;
    801 	sc->sc_pintr = intr;
    802 	sc->sc_parg = arg;
    803 
    804 	mode = sv_read_indirect(sc, SV_DMA_DATA_FORMAT);
    805 	mode &= ~(SV_DMAA_FORMAT16 | SV_DMAA_STEREO);
    806 	if (param->precision == 16)
    807 		mode |= SV_DMAA_FORMAT16;
    808 	if (param->channels == 2)
    809 		mode |= SV_DMAA_STEREO;
    810 	sv_write_indirect(sc, SV_DMA_DATA_FORMAT, mode);
    811 
    812 	for (p = sc->sc_dmas; p && KERNADDR(p) != start; p = p->next)
    813 		continue;
    814 	if (p == NULL) {
    815 		printf("sv_trigger_output: bad addr %p\n", start);
    816 		return EINVAL;
    817 	}
    818 
    819 	dma_count = ((char *)end - (char *)start) - 1;
    820 	DPRINTF(("sv_trigger_output: DMA start loop input addr=%x cc=%d\n",
    821 	    (int)DMAADDR(p), dma_count));
    822 
    823 	bus_space_write_4(sc->sc_iot, sc->sc_dmaa_ioh, SV_DMA_ADDR0,
    824 			  DMAADDR(p));
    825 	bus_space_write_4(sc->sc_iot, sc->sc_dmaa_ioh, SV_DMA_COUNT0,
    826 			  dma_count);
    827 	bus_space_write_1(sc->sc_iot, sc->sc_dmaa_ioh, SV_DMA_MODE,
    828 			  DMA37MD_READ | DMA37MD_LOOP);
    829 
    830 	DPRINTF(("sv_trigger_output: current addr=%x\n",
    831 	    bus_space_read_4(sc->sc_iot, sc->sc_dmaa_ioh, SV_DMA_ADDR0)));
    832 
    833 	dma_count = blksize - 1;
    834 
    835 	sv_write_indirect(sc, SV_DMAA_COUNT1, dma_count >> 8);
    836 	sv_write_indirect(sc, SV_DMAA_COUNT0, dma_count & 0xFF);
    837 
    838 	mode = sv_read_indirect(sc, SV_PLAY_RECORD_ENABLE);
    839 	sv_write_indirect(sc, SV_PLAY_RECORD_ENABLE, mode | SV_PLAY_ENABLE);
    840 
    841 	return 0;
    842 }
    843 
    844 int
    845 sv_trigger_input(void *addr, void *start, void *end, int blksize,
    846     void (*intr)(void *), void *arg, const audio_params_t *param)
    847 {
    848 	struct sv_softc *sc;
    849 	struct sv_dma *p;
    850 	uint8_t mode;
    851 	int dma_count;
    852 
    853 	DPRINTFN(1, ("sv_trigger_input: sc=%p start=%p end=%p blksize=%d "
    854 	    "intr=%p(%p)\n", addr, start, end, blksize, intr, arg));
    855 	sc = addr;
    856 	sc->sc_rintr = intr;
    857 	sc->sc_rarg = arg;
    858 
    859 	mode = sv_read_indirect(sc, SV_DMA_DATA_FORMAT);
    860 	mode &= ~(SV_DMAC_FORMAT16 | SV_DMAC_STEREO);
    861 	if (param->precision == 16)
    862 		mode |= SV_DMAC_FORMAT16;
    863 	if (param->channels == 2)
    864 		mode |= SV_DMAC_STEREO;
    865 	sv_write_indirect(sc, SV_DMA_DATA_FORMAT, mode);
    866 
    867 	for (p = sc->sc_dmas; p && KERNADDR(p) != start; p = p->next)
    868 		continue;
    869 	if (!p) {
    870 		printf("sv_trigger_input: bad addr %p\n", start);
    871 		return EINVAL;
    872 	}
    873 
    874 	dma_count = (((char *)end - (char *)start) >> 1) - 1;
    875 	DPRINTF(("sv_trigger_input: DMA start loop input addr=%x cc=%d\n",
    876 	    (int)DMAADDR(p), dma_count));
    877 
    878 	bus_space_write_4(sc->sc_iot, sc->sc_dmac_ioh, SV_DMA_ADDR0,
    879 			  DMAADDR(p));
    880 	bus_space_write_4(sc->sc_iot, sc->sc_dmac_ioh, SV_DMA_COUNT0,
    881 			  dma_count);
    882 	bus_space_write_1(sc->sc_iot, sc->sc_dmac_ioh, SV_DMA_MODE,
    883 			  DMA37MD_WRITE | DMA37MD_LOOP);
    884 
    885 	DPRINTF(("sv_trigger_input: current addr=%x\n",
    886 	    bus_space_read_4(sc->sc_iot, sc->sc_dmac_ioh, SV_DMA_ADDR0)));
    887 
    888 	dma_count = (blksize >> 1) - 1;
    889 
    890 	sv_write_indirect(sc, SV_DMAC_COUNT1, dma_count >> 8);
    891 	sv_write_indirect(sc, SV_DMAC_COUNT0, dma_count & 0xFF);
    892 
    893 	mode = sv_read_indirect(sc, SV_PLAY_RECORD_ENABLE);
    894 	sv_write_indirect(sc, SV_PLAY_RECORD_ENABLE, mode | SV_RECORD_ENABLE);
    895 
    896 	return 0;
    897 }
    898 
    899 int
    900 sv_halt_output(void *addr)
    901 {
    902 	struct sv_softc *sc;
    903 	uint8_t mode;
    904 
    905 	DPRINTF(("sv: sv_halt_output\n"));
    906 	sc = addr;
    907 	mode = sv_read_indirect(sc, SV_PLAY_RECORD_ENABLE);
    908 	sv_write_indirect(sc, SV_PLAY_RECORD_ENABLE, mode & ~SV_PLAY_ENABLE);
    909 	sc->sc_pintr = 0;
    910 
    911 	return 0;
    912 }
    913 
    914 int
    915 sv_halt_input(void *addr)
    916 {
    917 	struct sv_softc *sc;
    918 	uint8_t mode;
    919 
    920 	DPRINTF(("sv: sv_halt_input\n"));
    921 	sc = addr;
    922 	mode = sv_read_indirect(sc, SV_PLAY_RECORD_ENABLE);
    923 	sv_write_indirect(sc, SV_PLAY_RECORD_ENABLE, mode & ~SV_RECORD_ENABLE);
    924 	sc->sc_rintr = 0;
    925 
    926 	return 0;
    927 }
    928 
    929 int
    930 sv_getdev(void *addr, struct audio_device *retp)
    931 {
    932 
    933 	*retp = sv_device;
    934 	return 0;
    935 }
    936 
    937 
    938 /*
    939  * Mixer related code is here
    940  *
    941  */
    942 
    943 #define SV_INPUT_CLASS 0
    944 #define SV_OUTPUT_CLASS 1
    945 #define SV_RECORD_CLASS 2
    946 
    947 #define SV_LAST_CLASS 2
    948 
    949 static const char *mixer_classes[] =
    950 	{ AudioCinputs, AudioCoutputs, AudioCrecord };
    951 
    952 static const struct {
    953 	uint8_t   l_port;
    954 	uint8_t   r_port;
    955 	uint8_t   mask;
    956 	uint8_t   class;
    957 	const char *audio;
    958 } ports[] = {
    959   { SV_LEFT_AUX1_INPUT_CONTROL, SV_RIGHT_AUX1_INPUT_CONTROL, SV_AUX1_MASK,
    960     SV_INPUT_CLASS, "aux1" },
    961   { SV_LEFT_CD_INPUT_CONTROL, SV_RIGHT_CD_INPUT_CONTROL, SV_CD_MASK,
    962     SV_INPUT_CLASS, AudioNcd },
    963   { SV_LEFT_LINE_IN_INPUT_CONTROL, SV_RIGHT_LINE_IN_INPUT_CONTROL, SV_LINE_IN_MASK,
    964     SV_INPUT_CLASS, AudioNline },
    965   { SV_MIC_INPUT_CONTROL, 0, SV_MIC_MASK, SV_INPUT_CLASS, AudioNmicrophone },
    966   { SV_LEFT_SYNTH_INPUT_CONTROL, SV_RIGHT_SYNTH_INPUT_CONTROL,
    967     SV_SYNTH_MASK, SV_INPUT_CLASS, AudioNfmsynth },
    968   { SV_LEFT_AUX2_INPUT_CONTROL, SV_RIGHT_AUX2_INPUT_CONTROL, SV_AUX2_MASK,
    969     SV_INPUT_CLASS, "aux2" },
    970   { SV_LEFT_PCM_INPUT_CONTROL, SV_RIGHT_PCM_INPUT_CONTROL, SV_PCM_MASK,
    971     SV_INPUT_CLASS, AudioNdac },
    972   { SV_LEFT_MIXER_OUTPUT_CONTROL, SV_RIGHT_MIXER_OUTPUT_CONTROL,
    973     SV_MIXER_OUT_MASK, SV_OUTPUT_CLASS, AudioNmaster }
    974 };
    975 
    976 
    977 static const struct {
    978 	int idx;
    979 	const char *name;
    980 } record_sources[] = {
    981 	{ SV_REC_CD, AudioNcd },
    982 	{ SV_REC_DAC, AudioNdac },
    983 	{ SV_REC_AUX2, "aux2" },
    984 	{ SV_REC_LINE, AudioNline },
    985 	{ SV_REC_AUX1, "aux1" },
    986 	{ SV_REC_MIC, AudioNmicrophone },
    987 	{ SV_REC_MIXER, AudioNmixerout }
    988 };
    989 
    990 
    991 #define SV_DEVICES_PER_PORT 2
    992 #define SV_FIRST_MIXER (SV_LAST_CLASS + 1)
    993 #define SV_LAST_MIXER (SV_DEVICES_PER_PORT * (ARRAY_SIZE(ports)) + SV_LAST_CLASS)
    994 #define SV_RECORD_SOURCE (SV_LAST_MIXER + 1)
    995 #define SV_MIC_BOOST (SV_LAST_MIXER + 2)
    996 #define SV_RECORD_GAIN (SV_LAST_MIXER + 3)
    997 #define SV_SRS_MODE (SV_LAST_MIXER + 4)
    998 
    999 int
   1000 sv_query_devinfo(void *addr, mixer_devinfo_t *dip)
   1001 {
   1002 	int i;
   1003 
   1004 	/* It's a class */
   1005 	if (dip->index <= SV_LAST_CLASS) {
   1006 		dip->type = AUDIO_MIXER_CLASS;
   1007 		dip->mixer_class = dip->index;
   1008 		dip->next = dip->prev = AUDIO_MIXER_LAST;
   1009 		strcpy(dip->label.name, mixer_classes[dip->index]);
   1010 		return 0;
   1011 	}
   1012 
   1013 	if (dip->index >= SV_FIRST_MIXER &&
   1014 	    dip->index <= SV_LAST_MIXER) {
   1015 		int off, mute ,idx;
   1016 
   1017 		off = dip->index - SV_FIRST_MIXER;
   1018 		mute = (off % SV_DEVICES_PER_PORT);
   1019 		idx = off / SV_DEVICES_PER_PORT;
   1020 		dip->mixer_class = ports[idx].class;
   1021 		strcpy(dip->label.name, ports[idx].audio);
   1022 
   1023 		if (!mute) {
   1024 			dip->type = AUDIO_MIXER_VALUE;
   1025 			dip->prev = AUDIO_MIXER_LAST;
   1026 			dip->next = dip->index + 1;
   1027 
   1028 			if (ports[idx].r_port != 0)
   1029 				dip->un.v.num_channels = 2;
   1030 			else
   1031 				dip->un.v.num_channels = 1;
   1032 
   1033 			strcpy(dip->un.v.units.name, AudioNvolume);
   1034 		} else {
   1035 			dip->type = AUDIO_MIXER_ENUM;
   1036 			dip->prev = dip->index - 1;
   1037 			dip->next = AUDIO_MIXER_LAST;
   1038 
   1039 			strcpy(dip->label.name, AudioNmute);
   1040 			dip->un.e.num_mem = 2;
   1041 			strcpy(dip->un.e.member[0].label.name, AudioNoff);
   1042 			dip->un.e.member[0].ord = 0;
   1043 			strcpy(dip->un.e.member[1].label.name, AudioNon);
   1044 			dip->un.e.member[1].ord = 1;
   1045 		}
   1046 
   1047 		return 0;
   1048 	}
   1049 
   1050 	switch (dip->index) {
   1051 	case SV_RECORD_SOURCE:
   1052 		dip->mixer_class = SV_RECORD_CLASS;
   1053 		dip->prev = AUDIO_MIXER_LAST;
   1054 		dip->next = SV_RECORD_GAIN;
   1055 		strcpy(dip->label.name, AudioNsource);
   1056 		dip->type = AUDIO_MIXER_ENUM;
   1057 
   1058 		dip->un.e.num_mem = ARRAY_SIZE(record_sources);
   1059 		for (i = 0; i < ARRAY_SIZE(record_sources); i++) {
   1060 			strcpy(dip->un.e.member[i].label.name,
   1061 			       record_sources[i].name);
   1062 			dip->un.e.member[i].ord = record_sources[i].idx;
   1063 		}
   1064 		return 0;
   1065 
   1066 	case SV_RECORD_GAIN:
   1067 		dip->mixer_class = SV_RECORD_CLASS;
   1068 		dip->prev = SV_RECORD_SOURCE;
   1069 		dip->next = AUDIO_MIXER_LAST;
   1070 		strcpy(dip->label.name, "gain");
   1071 		dip->type = AUDIO_MIXER_VALUE;
   1072 		dip->un.v.num_channels = 1;
   1073 		strcpy(dip->un.v.units.name, AudioNvolume);
   1074 		return 0;
   1075 
   1076 	case SV_MIC_BOOST:
   1077 		dip->mixer_class = SV_RECORD_CLASS;
   1078 		dip->prev = AUDIO_MIXER_LAST;
   1079 		dip->next = AUDIO_MIXER_LAST;
   1080 		strcpy(dip->label.name, "micboost");
   1081 		goto on_off;
   1082 
   1083 	case SV_SRS_MODE:
   1084 		dip->mixer_class = SV_OUTPUT_CLASS;
   1085 		dip->prev = dip->next = AUDIO_MIXER_LAST;
   1086 		strcpy(dip->label.name, AudioNspatial);
   1087 
   1088 	on_off:
   1089 		dip->type = AUDIO_MIXER_ENUM;
   1090 		dip->un.e.num_mem = 2;
   1091 		strcpy(dip->un.e.member[0].label.name, AudioNoff);
   1092 		dip->un.e.member[0].ord = 0;
   1093 		strcpy(dip->un.e.member[1].label.name, AudioNon);
   1094 		dip->un.e.member[1].ord = 1;
   1095 		return 0;
   1096 	}
   1097 
   1098 	return ENXIO;
   1099 }
   1100 
   1101 int
   1102 sv_mixer_set_port(void *addr, mixer_ctrl_t *cp)
   1103 {
   1104 	struct sv_softc *sc;
   1105 	uint8_t reg;
   1106 	int idx;
   1107 
   1108 	sc = addr;
   1109 	if (cp->dev >= SV_FIRST_MIXER &&
   1110 	    cp->dev <= SV_LAST_MIXER) {
   1111 		int off, mute;
   1112 
   1113 		off = cp->dev - SV_FIRST_MIXER;
   1114 		mute = (off % SV_DEVICES_PER_PORT);
   1115 		idx = off / SV_DEVICES_PER_PORT;
   1116 
   1117 		if (mute) {
   1118 			if (cp->type != AUDIO_MIXER_ENUM)
   1119 				return EINVAL;
   1120 
   1121 			reg = sv_read_indirect(sc, ports[idx].l_port);
   1122 			if (cp->un.ord)
   1123 				reg |= SV_MUTE_BIT;
   1124 			else
   1125 				reg &= ~SV_MUTE_BIT;
   1126 			sv_write_indirect(sc, ports[idx].l_port, reg);
   1127 
   1128 			if (ports[idx].r_port) {
   1129 				reg = sv_read_indirect(sc, ports[idx].r_port);
   1130 				if (cp->un.ord)
   1131 					reg |= SV_MUTE_BIT;
   1132 				else
   1133 					reg &= ~SV_MUTE_BIT;
   1134 				sv_write_indirect(sc, ports[idx].r_port, reg);
   1135 			}
   1136 		} else {
   1137 			int  lval, rval;
   1138 
   1139 			if (cp->type != AUDIO_MIXER_VALUE)
   1140 				return EINVAL;
   1141 
   1142 			if (cp->un.value.num_channels != 1 &&
   1143 			    cp->un.value.num_channels != 2)
   1144 				return (EINVAL);
   1145 
   1146 			if (ports[idx].r_port == 0) {
   1147 				if (cp->un.value.num_channels != 1)
   1148 					return (EINVAL);
   1149 				lval = cp->un.value.level[AUDIO_MIXER_LEVEL_MONO];
   1150 				rval = 0; /* shut up GCC */
   1151 			} else {
   1152 				if (cp->un.value.num_channels != 2)
   1153 					return (EINVAL);
   1154 
   1155 				lval = cp->un.value.level[AUDIO_MIXER_LEVEL_LEFT];
   1156 				rval = cp->un.value.level[AUDIO_MIXER_LEVEL_RIGHT];
   1157 			}
   1158 
   1159 
   1160 			reg = sv_read_indirect(sc, ports[idx].l_port);
   1161 			reg &= ~(ports[idx].mask);
   1162 			lval = (AUDIO_MAX_GAIN - lval) * ports[idx].mask /
   1163 				AUDIO_MAX_GAIN;
   1164 			reg |= lval;
   1165 			sv_write_indirect(sc, ports[idx].l_port, reg);
   1166 
   1167 			if (ports[idx].r_port != 0) {
   1168 				reg = sv_read_indirect(sc, ports[idx].r_port);
   1169 				reg &= ~(ports[idx].mask);
   1170 
   1171 				rval = (AUDIO_MAX_GAIN - rval) * ports[idx].mask /
   1172 					AUDIO_MAX_GAIN;
   1173 				reg |= rval;
   1174 
   1175 				sv_write_indirect(sc, ports[idx].r_port, reg);
   1176 			}
   1177 
   1178 			sv_read_indirect(sc, ports[idx].l_port);
   1179 		}
   1180 
   1181 		return 0;
   1182 	}
   1183 
   1184 
   1185 	switch (cp->dev) {
   1186 	case SV_RECORD_SOURCE:
   1187 		if (cp->type != AUDIO_MIXER_ENUM)
   1188 			return EINVAL;
   1189 
   1190 		for (idx = 0; idx < ARRAY_SIZE(record_sources); idx++) {
   1191 			if (record_sources[idx].idx == cp->un.ord)
   1192 				goto found;
   1193 		}
   1194 
   1195 		return EINVAL;
   1196 
   1197 	found:
   1198 		reg = sv_read_indirect(sc, SV_LEFT_ADC_INPUT_CONTROL);
   1199 		reg &= ~SV_REC_SOURCE_MASK;
   1200 		reg |= (((cp->un.ord) << SV_REC_SOURCE_SHIFT) & SV_REC_SOURCE_MASK);
   1201 		sv_write_indirect(sc, SV_LEFT_ADC_INPUT_CONTROL, reg);
   1202 
   1203 		reg = sv_read_indirect(sc, SV_RIGHT_ADC_INPUT_CONTROL);
   1204 		reg &= ~SV_REC_SOURCE_MASK;
   1205 		reg |= (((cp->un.ord) << SV_REC_SOURCE_SHIFT) & SV_REC_SOURCE_MASK);
   1206 		sv_write_indirect(sc, SV_RIGHT_ADC_INPUT_CONTROL, reg);
   1207 		return 0;
   1208 
   1209 	case SV_RECORD_GAIN:
   1210 	{
   1211 		int val;
   1212 
   1213 		if (cp->type != AUDIO_MIXER_VALUE)
   1214 			return EINVAL;
   1215 
   1216 		if (cp->un.value.num_channels != 1)
   1217 			return EINVAL;
   1218 
   1219 		val = (cp->un.value.level[AUDIO_MIXER_LEVEL_MONO]
   1220 		    * SV_REC_GAIN_MASK) / AUDIO_MAX_GAIN;
   1221 
   1222 		reg = sv_read_indirect(sc, SV_LEFT_ADC_INPUT_CONTROL);
   1223 		reg &= ~SV_REC_GAIN_MASK;
   1224 		reg |= val;
   1225 		sv_write_indirect(sc, SV_LEFT_ADC_INPUT_CONTROL, reg);
   1226 
   1227 		reg = sv_read_indirect(sc, SV_RIGHT_ADC_INPUT_CONTROL);
   1228 		reg &= ~SV_REC_GAIN_MASK;
   1229 		reg |= val;
   1230 		sv_write_indirect(sc, SV_RIGHT_ADC_INPUT_CONTROL, reg);
   1231 	}
   1232 	return (0);
   1233 
   1234 	case SV_MIC_BOOST:
   1235 		if (cp->type != AUDIO_MIXER_ENUM)
   1236 			return EINVAL;
   1237 
   1238 		reg = sv_read_indirect(sc, SV_LEFT_ADC_INPUT_CONTROL);
   1239 		if (cp->un.ord) {
   1240 			reg |= SV_MIC_BOOST_BIT;
   1241 		} else {
   1242 			reg &= ~SV_MIC_BOOST_BIT;
   1243 		}
   1244 
   1245 		sv_write_indirect(sc, SV_LEFT_ADC_INPUT_CONTROL, reg);
   1246 		return 0;
   1247 
   1248 	case SV_SRS_MODE:
   1249 		if (cp->type != AUDIO_MIXER_ENUM)
   1250 			return EINVAL;
   1251 
   1252 		reg = sv_read_indirect(sc, SV_SRS_SPACE_CONTROL);
   1253 		if (cp->un.ord) {
   1254 			reg &= ~SV_SRS_SPACE_ONOFF;
   1255 		} else {
   1256 			reg |= SV_SRS_SPACE_ONOFF;
   1257 		}
   1258 
   1259 		sv_write_indirect(sc, SV_SRS_SPACE_CONTROL, reg);
   1260 		return 0;
   1261 	}
   1262 
   1263 	return EINVAL;
   1264 }
   1265 
   1266 int
   1267 sv_mixer_get_port(void *addr, mixer_ctrl_t *cp)
   1268 {
   1269 	struct sv_softc *sc;
   1270 	int val;
   1271 	uint8_t reg;
   1272 
   1273 	sc = addr;
   1274 	if (cp->dev >= SV_FIRST_MIXER &&
   1275 	    cp->dev <= SV_LAST_MIXER) {
   1276 		int off = cp->dev - SV_FIRST_MIXER;
   1277 		int mute = (off % 2);
   1278 		int idx = off / 2;
   1279 
   1280 		off = cp->dev - SV_FIRST_MIXER;
   1281 		mute = (off % 2);
   1282 		idx = off / 2;
   1283 		if (mute) {
   1284 			if (cp->type != AUDIO_MIXER_ENUM)
   1285 				return EINVAL;
   1286 
   1287 			reg = sv_read_indirect(sc, ports[idx].l_port);
   1288 			cp->un.ord = ((reg & SV_MUTE_BIT) ? 1 : 0);
   1289 		} else {
   1290 			if (cp->type != AUDIO_MIXER_VALUE)
   1291 				return EINVAL;
   1292 
   1293 			if (cp->un.value.num_channels != 1 &&
   1294 			    cp->un.value.num_channels != 2)
   1295 				return EINVAL;
   1296 
   1297 			if ((ports[idx].r_port == 0 &&
   1298 			     cp->un.value.num_channels != 1) ||
   1299 			    (ports[idx].r_port != 0 &&
   1300 			     cp->un.value.num_channels != 2))
   1301 				return EINVAL;
   1302 
   1303 			reg = sv_read_indirect(sc, ports[idx].l_port);
   1304 			reg &= ports[idx].mask;
   1305 
   1306 			val = AUDIO_MAX_GAIN - ((reg * AUDIO_MAX_GAIN) / ports[idx].mask);
   1307 
   1308 			if (ports[idx].r_port != 0) {
   1309 				cp->un.value.level[AUDIO_MIXER_LEVEL_LEFT] = val;
   1310 
   1311 				reg = sv_read_indirect(sc, ports[idx].r_port);
   1312 				reg &= ports[idx].mask;
   1313 
   1314 				val = AUDIO_MAX_GAIN - ((reg * AUDIO_MAX_GAIN)
   1315 				    / ports[idx].mask);
   1316 				cp->un.value.level[AUDIO_MIXER_LEVEL_RIGHT] = val;
   1317 			} else
   1318 				cp->un.value.level[AUDIO_MIXER_LEVEL_MONO] = val;
   1319 		}
   1320 
   1321 		return 0;
   1322 	}
   1323 
   1324 	switch (cp->dev) {
   1325 	case SV_RECORD_SOURCE:
   1326 		if (cp->type != AUDIO_MIXER_ENUM)
   1327 			return EINVAL;
   1328 
   1329 		reg = sv_read_indirect(sc, SV_LEFT_ADC_INPUT_CONTROL);
   1330 		cp->un.ord = ((reg & SV_REC_SOURCE_MASK) >> SV_REC_SOURCE_SHIFT);
   1331 
   1332 		return 0;
   1333 
   1334 	case SV_RECORD_GAIN:
   1335 		if (cp->type != AUDIO_MIXER_VALUE)
   1336 			return EINVAL;
   1337 		if (cp->un.value.num_channels != 1)
   1338 			return EINVAL;
   1339 
   1340 		reg = sv_read_indirect(sc, SV_LEFT_ADC_INPUT_CONTROL) & SV_REC_GAIN_MASK;
   1341 		cp->un.value.level[AUDIO_MIXER_LEVEL_MONO] =
   1342 			(((unsigned int)reg) * AUDIO_MAX_GAIN) / SV_REC_GAIN_MASK;
   1343 
   1344 		return 0;
   1345 
   1346 	case SV_MIC_BOOST:
   1347 		if (cp->type != AUDIO_MIXER_ENUM)
   1348 			return EINVAL;
   1349 		reg = sv_read_indirect(sc, SV_LEFT_ADC_INPUT_CONTROL);
   1350 		cp->un.ord = ((reg & SV_MIC_BOOST_BIT) ? 1 : 0);
   1351 		return 0;
   1352 
   1353 	case SV_SRS_MODE:
   1354 		if (cp->type != AUDIO_MIXER_ENUM)
   1355 			return EINVAL;
   1356 		reg = sv_read_indirect(sc, SV_SRS_SPACE_CONTROL);
   1357 		cp->un.ord = ((reg & SV_SRS_SPACE_ONOFF) ? 0 : 1);
   1358 		return 0;
   1359 	}
   1360 
   1361 	return EINVAL;
   1362 }
   1363 
   1364 static void
   1365 sv_init_mixer(struct sv_softc *sc)
   1366 {
   1367 	mixer_ctrl_t cp;
   1368 	int i;
   1369 
   1370 	cp.type = AUDIO_MIXER_ENUM;
   1371 	cp.dev = SV_SRS_MODE;
   1372 	cp.un.ord = 0;
   1373 
   1374 	sv_mixer_set_port(sc, &cp);
   1375 
   1376 	for (i = 0; i < ARRAY_SIZE(ports); i++) {
   1377 		if (ports[i].audio == AudioNdac) {
   1378 			cp.type = AUDIO_MIXER_ENUM;
   1379 			cp.dev = SV_FIRST_MIXER + i * SV_DEVICES_PER_PORT + 1;
   1380 			cp.un.ord = 0;
   1381 			sv_mixer_set_port(sc, &cp);
   1382 			break;
   1383 		}
   1384 	}
   1385 }
   1386 
   1387 void *
   1388 sv_malloc(void *addr, int direction, size_t size,
   1389     struct malloc_type *pool, int flags)
   1390 {
   1391 	struct sv_softc *sc;
   1392 	struct sv_dma *p;
   1393 	int error;
   1394 
   1395 	sc = addr;
   1396 	p = malloc(sizeof(*p), pool, flags);
   1397 	if (p == NULL)
   1398 		return NULL;
   1399 	error = sv_allocmem(sc, size, 16, direction, p);
   1400 	if (error) {
   1401 		free(p, pool);
   1402 		return 0;
   1403 	}
   1404 	p->next = sc->sc_dmas;
   1405 	sc->sc_dmas = p;
   1406 	return KERNADDR(p);
   1407 }
   1408 
   1409 void
   1410 sv_free(void *addr, void *ptr, struct malloc_type *pool)
   1411 {
   1412 	struct sv_softc *sc;
   1413 	struct sv_dma **pp, *p;
   1414 
   1415 	sc = addr;
   1416 	for (pp = &sc->sc_dmas; (p = *pp) != NULL; pp = &p->next) {
   1417 		if (KERNADDR(p) == ptr) {
   1418 			sv_freemem(sc, p);
   1419 			*pp = p->next;
   1420 			free(p, pool);
   1421 			return;
   1422 		}
   1423 	}
   1424 }
   1425 
   1426 size_t
   1427 sv_round_buffersize(void *addr, int direction, size_t size)
   1428 {
   1429 
   1430 	return size;
   1431 }
   1432 
   1433 paddr_t
   1434 sv_mappage(void *addr, void *mem, off_t off, int prot)
   1435 {
   1436 	struct sv_softc *sc;
   1437 	struct sv_dma *p;
   1438 
   1439 	sc = addr;
   1440 	if (off < 0)
   1441 		return -1;
   1442 	for (p = sc->sc_dmas; p && KERNADDR(p) != mem; p = p->next)
   1443 		continue;
   1444 	if (p == NULL)
   1445 		return -1;
   1446 	return bus_dmamem_mmap(sc->sc_dmatag, p->segs, p->nsegs,
   1447 			       off, prot, BUS_DMA_WAITOK);
   1448 }
   1449 
   1450 int
   1451 sv_get_props(void *addr)
   1452 {
   1453 	return AUDIO_PROP_MMAP | AUDIO_PROP_INDEPENDENT | AUDIO_PROP_FULLDUPLEX;
   1454 }
   1455