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eso.c revision 1.33
      1 /*	$NetBSD: eso.c,v 1.33 2004/02/17 17:39:55 kleink Exp $	*/
      2 
      3 /*
      4  * Copyright (c) 1999, 2000 Klaus J. Klein
      5  * All rights reserved.
      6  *
      7  * Redistribution and use in source and binary forms, with or without
      8  * modification, are permitted provided that the following conditions
      9  * are met:
     10  * 1. Redistributions of source code must retain the above copyright
     11  *    notice, this list of conditions and the following disclaimer.
     12  * 2. Redistributions in binary form must reproduce the above copyright
     13  *    notice, this list of conditions and the following disclaimer in the
     14  *    documentation and/or other materials provided with the distribution.
     15  * 3. The name of the author may not be used to endorse or promote products
     16  *    derived from this software without specific prior written permission.
     17  *
     18  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
     19  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
     20  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
     21  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
     22  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
     23  * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
     24  * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
     25  * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
     26  * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     27  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     28  * SUCH DAMAGE.
     29  */
     30 
     31 /*
     32  * ESS Technology Inc. Solo-1 PCI AudioDrive (ES1938/1946) device driver.
     33  */
     34 
     35 #include <sys/cdefs.h>
     36 __KERNEL_RCSID(0, "$NetBSD: eso.c,v 1.33 2004/02/17 17:39:55 kleink Exp $");
     37 
     38 #include "mpu.h"
     39 
     40 #include <sys/param.h>
     41 #include <sys/systm.h>
     42 #include <sys/kernel.h>
     43 #include <sys/malloc.h>
     44 #include <sys/device.h>
     45 #include <sys/proc.h>
     46 
     47 #include <dev/pci/pcidevs.h>
     48 #include <dev/pci/pcivar.h>
     49 
     50 #include <sys/audioio.h>
     51 #include <dev/audio_if.h>
     52 #include <dev/midi_if.h>
     53 
     54 #include <dev/mulaw.h>
     55 #include <dev/auconv.h>
     56 
     57 #include <dev/ic/mpuvar.h>
     58 #include <dev/ic/i8237reg.h>
     59 #include <dev/pci/esoreg.h>
     60 #include <dev/pci/esovar.h>
     61 
     62 #include <machine/bus.h>
     63 #include <machine/intr.h>
     64 
     65 #if defined(AUDIO_DEBUG) || defined(DEBUG)
     66 #define DPRINTF(x) printf x
     67 #else
     68 #define DPRINTF(x)
     69 #endif
     70 
     71 struct eso_dma {
     72 	bus_dma_tag_t		ed_dmat;
     73 	bus_dmamap_t		ed_map;
     74 	caddr_t			ed_addr;
     75 	bus_dma_segment_t	ed_segs[1];
     76 	int			ed_nsegs;
     77 	size_t			ed_size;
     78 	struct eso_dma *	ed_next;
     79 };
     80 
     81 #define KVADDR(dma)	((void *)(dma)->ed_addr)
     82 #define DMAADDR(dma)	((dma)->ed_map->dm_segs[0].ds_addr)
     83 
     84 /* Autoconfiguration interface */
     85 static int eso_match __P((struct device *, struct cfdata *, void *));
     86 static void eso_attach __P((struct device *, struct device *, void *));
     87 static void eso_defer __P((struct device *));
     88 static int eso_print __P((void *, const char *));
     89 
     90 CFATTACH_DECL(eso, sizeof (struct eso_softc),
     91     eso_match, eso_attach, NULL, NULL);
     92 
     93 /* PCI interface */
     94 static int eso_intr __P((void *));
     95 
     96 /* MI audio layer interface */
     97 static int	eso_open __P((void *, int));
     98 static void	eso_close __P((void *));
     99 static int	eso_query_encoding __P((void *, struct audio_encoding *));
    100 static int	eso_set_params __P((void *, int, int, struct audio_params *,
    101 		    struct audio_params *));
    102 static int	eso_round_blocksize __P((void *, int));
    103 static int	eso_halt_output __P((void *));
    104 static int	eso_halt_input __P((void *));
    105 static int	eso_getdev __P((void *, struct audio_device *));
    106 static int	eso_set_port __P((void *, mixer_ctrl_t *));
    107 static int	eso_get_port __P((void *, mixer_ctrl_t *));
    108 static int	eso_query_devinfo __P((void *, mixer_devinfo_t *));
    109 static void *	eso_allocm __P((void *, int, size_t, struct malloc_type *, int));
    110 static void	eso_freem __P((void *, void *, struct malloc_type *));
    111 static size_t	eso_round_buffersize __P((void *, int, size_t));
    112 static paddr_t	eso_mappage __P((void *, void *, off_t, int));
    113 static int	eso_get_props __P((void *));
    114 static int	eso_trigger_output __P((void *, void *, void *, int,
    115 		    void (*)(void *), void *, struct audio_params *));
    116 static int	eso_trigger_input __P((void *, void *, void *, int,
    117 		    void (*)(void *), void *, struct audio_params *));
    118 
    119 static struct audio_hw_if eso_hw_if = {
    120 	eso_open,
    121 	eso_close,
    122 	NULL,			/* drain */
    123 	eso_query_encoding,
    124 	eso_set_params,
    125 	eso_round_blocksize,
    126 	NULL,			/* commit_settings */
    127 	NULL,			/* init_output */
    128 	NULL,			/* init_input */
    129 	NULL,			/* start_output */
    130 	NULL,			/* start_input */
    131 	eso_halt_output,
    132 	eso_halt_input,
    133 	NULL,			/* speaker_ctl */
    134 	eso_getdev,
    135 	NULL,			/* setfd */
    136 	eso_set_port,
    137 	eso_get_port,
    138 	eso_query_devinfo,
    139 	eso_allocm,
    140 	eso_freem,
    141 	eso_round_buffersize,
    142 	eso_mappage,
    143 	eso_get_props,
    144 	eso_trigger_output,
    145 	eso_trigger_input,
    146 	NULL,			/* dev_ioctl */
    147 };
    148 
    149 static const char * const eso_rev2model[] = {
    150 	"ES1938",
    151 	"ES1946",
    152 	"ES1946 Revision E"
    153 };
    154 
    155 
    156 /*
    157  * Utility routines
    158  */
    159 /* Register access etc. */
    160 static uint8_t	eso_read_ctlreg __P((struct eso_softc *, uint8_t));
    161 static uint8_t	eso_read_mixreg __P((struct eso_softc *, uint8_t));
    162 static uint8_t	eso_read_rdr __P((struct eso_softc *));
    163 static void	eso_reload_master_vol __P((struct eso_softc *));
    164 static int	eso_reset __P((struct eso_softc *));
    165 static void	eso_set_gain __P((struct eso_softc *, unsigned int));
    166 static int	eso_set_monooutsrc __P((struct eso_softc *, unsigned int));
    167 static int	eso_set_recsrc __P((struct eso_softc *, unsigned int));
    168 static void	eso_write_cmd __P((struct eso_softc *, uint8_t));
    169 static void	eso_write_ctlreg __P((struct eso_softc *, uint8_t, uint8_t));
    170 static void	eso_write_mixreg __P((struct eso_softc *, uint8_t, uint8_t));
    171 /* DMA memory allocation */
    172 static int	eso_allocmem __P((struct eso_softc *, size_t, size_t, size_t,
    173 		    int, int, struct eso_dma *));
    174 static void	eso_freemem __P((struct eso_dma *));
    175 
    176 
    177 static int
    178 eso_match(parent, match, aux)
    179 	struct device *parent;
    180 	struct cfdata *match;
    181 	void *aux;
    182 {
    183 	struct pci_attach_args *pa = aux;
    184 
    185 	if (PCI_VENDOR(pa->pa_id) == PCI_VENDOR_ESSTECH &&
    186 	    PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_ESSTECH_SOLO1)
    187 		return (1);
    188 
    189 	return (0);
    190 }
    191 
    192 static void
    193 eso_attach(parent, self, aux)
    194 	struct device *parent, *self;
    195 	void *aux;
    196 {
    197 	struct eso_softc *sc = (struct eso_softc *)self;
    198 	struct pci_attach_args *pa = aux;
    199 	struct audio_attach_args aa;
    200 	pci_intr_handle_t ih;
    201 	bus_addr_t vcbase;
    202 	const char *intrstring;
    203 	int idx;
    204 	uint8_t a2mode, mvctl;
    205 
    206 	aprint_naive(": Audio controller\n");
    207 
    208 	sc->sc_revision = PCI_REVISION(pa->pa_class);
    209 
    210 	aprint_normal(": ESS Solo-1 PCI AudioDrive ");
    211 	if (sc->sc_revision <
    212 	    sizeof (eso_rev2model) / sizeof (eso_rev2model[0]))
    213 		aprint_normal("%s\n", eso_rev2model[sc->sc_revision]);
    214 	else
    215 		aprint_normal("(unknown rev. 0x%02x)\n", sc->sc_revision);
    216 
    217 	/* Map I/O registers. */
    218 	if (pci_mapreg_map(pa, ESO_PCI_BAR_IO, PCI_MAPREG_TYPE_IO, 0,
    219 	    &sc->sc_iot, &sc->sc_ioh, NULL, NULL)) {
    220 		aprint_error("%s: can't map I/O space\n", sc->sc_dev.dv_xname);
    221 		return;
    222 	}
    223 	if (pci_mapreg_map(pa, ESO_PCI_BAR_SB, PCI_MAPREG_TYPE_IO, 0,
    224 	    &sc->sc_sb_iot, &sc->sc_sb_ioh, NULL, NULL)) {
    225 		aprint_error("%s: can't map SB I/O space\n",
    226 		    sc->sc_dev.dv_xname);
    227 		return;
    228 	}
    229 	if (pci_mapreg_map(pa, ESO_PCI_BAR_VC, PCI_MAPREG_TYPE_IO, 0,
    230 	    &sc->sc_dmac_iot, &sc->sc_dmac_ioh, &vcbase, &sc->sc_vcsize)) {
    231 		aprint_error("%s: can't map VC I/O space\n",
    232 		    sc->sc_dev.dv_xname);
    233 		/* Don't bail out yet: we can map it later, see below. */
    234 		vcbase = 0;
    235 		sc->sc_vcsize = 0x10; /* From the data sheet. */
    236 	}
    237 	if (pci_mapreg_map(pa, ESO_PCI_BAR_MPU, PCI_MAPREG_TYPE_IO, 0,
    238 	    &sc->sc_mpu_iot, &sc->sc_mpu_ioh, NULL, NULL)) {
    239 		aprint_error("%s: can't map MPU I/O space\n",
    240 		    sc->sc_dev.dv_xname);
    241 		return;
    242 	}
    243 	if (pci_mapreg_map(pa, ESO_PCI_BAR_GAME, PCI_MAPREG_TYPE_IO, 0,
    244 	    &sc->sc_game_iot, &sc->sc_game_ioh, NULL, NULL)) {
    245 		aprint_error("%s: can't map Game I/O space\n",
    246 		    sc->sc_dev.dv_xname);
    247 		return;
    248 	}
    249 
    250 	sc->sc_dmat = pa->pa_dmat;
    251 	sc->sc_dmas = NULL;
    252 	sc->sc_dmac_configured = 0;
    253 
    254 	/* Enable bus mastering. */
    255 	pci_conf_write(pa->pa_pc, pa->pa_tag, PCI_COMMAND_STATUS_REG,
    256 	    pci_conf_read(pa->pa_pc, pa->pa_tag, PCI_COMMAND_STATUS_REG) |
    257 	    PCI_COMMAND_MASTER_ENABLE);
    258 
    259 	/* Reset the device; bail out upon failure. */
    260 	if (eso_reset(sc) != 0) {
    261 		aprint_error("%s: can't reset\n", sc->sc_dev.dv_xname);
    262 		return;
    263 	}
    264 
    265 	/* Select the DMA/IRQ policy: DDMA, ISA IRQ emulation disabled. */
    266 	pci_conf_write(pa->pa_pc, pa->pa_tag, ESO_PCI_S1C,
    267 	    pci_conf_read(pa->pa_pc, pa->pa_tag, ESO_PCI_S1C) &
    268 	    ~(ESO_PCI_S1C_IRQP_MASK | ESO_PCI_S1C_DMAP_MASK));
    269 
    270 	/* Enable the relevant (DMA) interrupts. */
    271 	bus_space_write_1(sc->sc_iot, sc->sc_ioh, ESO_IO_IRQCTL,
    272 	    ESO_IO_IRQCTL_A1IRQ | ESO_IO_IRQCTL_A2IRQ | ESO_IO_IRQCTL_HVIRQ |
    273 	    ESO_IO_IRQCTL_MPUIRQ);
    274 
    275 	/* Set up A1's sample rate generator for new-style parameters. */
    276 	a2mode = eso_read_mixreg(sc, ESO_MIXREG_A2MODE);
    277 	a2mode |= ESO_MIXREG_A2MODE_NEWA1 | ESO_MIXREG_A2MODE_ASYNC;
    278 	eso_write_mixreg(sc, ESO_MIXREG_A2MODE, a2mode);
    279 
    280 	/* Slave Master Volume to Hardware Volume Control Counter, unmask IRQ.*/
    281 	mvctl = eso_read_mixreg(sc, ESO_MIXREG_MVCTL);
    282 	mvctl &= ~ESO_MIXREG_MVCTL_SPLIT;
    283 	mvctl |= ESO_MIXREG_MVCTL_HVIRQM;
    284 	eso_write_mixreg(sc, ESO_MIXREG_MVCTL, mvctl);
    285 
    286 	/* Set mixer regs to something reasonable, needs work. */
    287 	sc->sc_recsrc = ESO_MIXREG_ERS_LINE;
    288 	sc->sc_monooutsrc = ESO_MIXREG_MPM_MOMUTE;
    289 	sc->sc_recmon = sc->sc_spatializer = sc->sc_mvmute = 0;
    290 	for (idx = 0; idx < ESO_NGAINDEVS; idx++) {
    291 		int v;
    292 
    293 		switch (idx) {
    294  		case ESO_MIC_PLAY_VOL:
    295 		case ESO_LINE_PLAY_VOL:
    296 		case ESO_CD_PLAY_VOL:
    297 		case ESO_MONO_PLAY_VOL:
    298 		case ESO_AUXB_PLAY_VOL:
    299 		case ESO_DAC_REC_VOL:
    300 		case ESO_LINE_REC_VOL:
    301 		case ESO_SYNTH_REC_VOL:
    302 		case ESO_CD_REC_VOL:
    303 		case ESO_MONO_REC_VOL:
    304 		case ESO_AUXB_REC_VOL:
    305 		case ESO_SPATIALIZER:
    306 			v = 0;
    307 			break;
    308 		case ESO_MASTER_VOL:
    309 			v = ESO_GAIN_TO_6BIT(AUDIO_MAX_GAIN / 2);
    310 			break;
    311 		default:
    312 			v = ESO_GAIN_TO_4BIT(AUDIO_MAX_GAIN / 2);
    313 			break;
    314 		}
    315 		sc->sc_gain[idx][ESO_LEFT] = sc->sc_gain[idx][ESO_RIGHT] = v;
    316 		eso_set_gain(sc, idx);
    317 	}
    318 	eso_set_recsrc(sc, ESO_MIXREG_ERS_MIC);
    319 
    320 	/* Map and establish the interrupt. */
    321 	if (pci_intr_map(pa, &ih)) {
    322 		aprint_error("%s: couldn't map interrupt\n",
    323 		    sc->sc_dev.dv_xname);
    324 		return;
    325 	}
    326 	intrstring = pci_intr_string(pa->pa_pc, ih);
    327 	sc->sc_ih  = pci_intr_establish(pa->pa_pc, ih, IPL_AUDIO, eso_intr, sc);
    328 	if (sc->sc_ih == NULL) {
    329 		aprint_error("%s: couldn't establish interrupt",
    330 		    sc->sc_dev.dv_xname);
    331 		if (intrstring != NULL)
    332 			aprint_normal(" at %s", intrstring);
    333 		aprint_normal("\n");
    334 		return;
    335 	}
    336 	aprint_normal("%s: interrupting at %s\n", sc->sc_dev.dv_xname,
    337 	    intrstring);
    338 
    339 	/*
    340 	 * Set up the DDMA Control register; a suitable I/O region has been
    341 	 * supposedly mapped in the VC base address register.
    342 	 *
    343 	 * The Solo-1 has an ... interesting silicon bug that causes it to
    344 	 * not respond to I/O space accesses to the Audio 1 DMA controller
    345 	 * if the latter's mapping base address is aligned on a 1K boundary.
    346 	 * As a consequence, it is quite possible for the mapping provided
    347 	 * in the VC BAR to be useless.  To work around this, we defer this
    348 	 * part until all autoconfiguration on our parent bus is completed
    349 	 * and then try to map it ourselves in fulfillment of the constraint.
    350 	 *
    351 	 * According to the register map we may write to the low 16 bits
    352 	 * only, but experimenting has shown we're safe.
    353 	 * -kjk
    354 	 */
    355 	if (ESO_VALID_DDMAC_BASE(vcbase)) {
    356 		pci_conf_write(pa->pa_pc, pa->pa_tag, ESO_PCI_DDMAC,
    357 		    vcbase | ESO_PCI_DDMAC_DE);
    358 		sc->sc_dmac_configured = 1;
    359 
    360 		aprint_normal(
    361 		    "%s: mapping Audio 1 DMA using VC I/O space at 0x%lx\n",
    362 		    sc->sc_dev.dv_xname, (unsigned long)vcbase);
    363 	} else {
    364 		DPRINTF(("%s: VC I/O space at 0x%lx not suitable, deferring\n",
    365 		    sc->sc_dev.dv_xname, (unsigned long)vcbase));
    366 		sc->sc_pa = *pa;
    367 		config_defer(self, eso_defer);
    368 	}
    369 
    370 	audio_attach_mi(&eso_hw_if, sc, &sc->sc_dev);
    371 
    372 	aa.type = AUDIODEV_TYPE_OPL;
    373 	aa.hwif = NULL;
    374 	aa.hdl = NULL;
    375 	(void)config_found(&sc->sc_dev, &aa, audioprint);
    376 
    377 	aa.type = AUDIODEV_TYPE_MPU;
    378 	aa.hwif = NULL;
    379 	aa.hdl = NULL;
    380 	sc->sc_mpudev = config_found(&sc->sc_dev, &aa, audioprint);
    381 	if (sc->sc_mpudev != NULL) {
    382 		/* Unmask the MPU irq. */
    383 		mvctl = eso_read_mixreg(sc, ESO_MIXREG_MVCTL);
    384 		mvctl |= ESO_MIXREG_MVCTL_MPUIRQM;
    385 		eso_write_mixreg(sc, ESO_MIXREG_MVCTL, mvctl);
    386 	}
    387 
    388 	aa.type = AUDIODEV_TYPE_AUX;
    389 	aa.hwif = NULL;
    390 	aa.hdl = NULL;
    391 	(void)config_found(&sc->sc_dev, &aa, eso_print);
    392 }
    393 
    394 static void
    395 eso_defer(self)
    396 	struct device *self;
    397 {
    398 	struct eso_softc *sc = (struct eso_softc *)self;
    399 	struct pci_attach_args *pa = &sc->sc_pa;
    400 	bus_addr_t addr, start;
    401 
    402 	aprint_normal("%s: ", sc->sc_dev.dv_xname);
    403 
    404 	/*
    405 	 * This is outright ugly, but since we must not make assumptions
    406 	 * on the underlying allocator's behaviour it's the most straight-
    407 	 * forward way to implement it.  Note that we skip over the first
    408 	 * 1K region, which is typically occupied by an attached ISA bus.
    409 	 */
    410 	for (start = 0x0400; start < 0xffff; start += 0x0400) {
    411 		if (bus_space_alloc(sc->sc_iot,
    412 		    start + sc->sc_vcsize, start + 0x0400 - 1,
    413 		    sc->sc_vcsize, sc->sc_vcsize, 0, 0, &addr,
    414 		    &sc->sc_dmac_ioh) != 0)
    415 			continue;
    416 
    417 		pci_conf_write(pa->pa_pc, pa->pa_tag, ESO_PCI_DDMAC,
    418 		    addr | ESO_PCI_DDMAC_DE);
    419 		sc->sc_dmac_iot = sc->sc_iot;
    420 		sc->sc_dmac_configured = 1;
    421 		aprint_normal("mapping Audio 1 DMA using I/O space at 0x%lx\n",
    422 		    (unsigned long)addr);
    423 
    424 		return;
    425 	}
    426 
    427 	aprint_error("can't map Audio 1 DMA into I/O space\n");
    428 }
    429 
    430 /* ARGSUSED */
    431 static int
    432 eso_print(aux, pnp)
    433 	void *aux;
    434 	const char *pnp;
    435 {
    436 
    437 	/* Only joys can attach via this; easy. */
    438 	if (pnp)
    439 		aprint_normal("joy at %s:", pnp);
    440 
    441 	return (UNCONF);
    442 }
    443 
    444 static void
    445 eso_write_cmd(sc, cmd)
    446 	struct eso_softc *sc;
    447 	uint8_t cmd;
    448 {
    449 	int i;
    450 
    451 	/* Poll for busy indicator to become clear. */
    452 	for (i = 0; i < ESO_WDR_TIMEOUT; i++) {
    453 		if ((bus_space_read_1(sc->sc_sb_iot, sc->sc_sb_ioh, ESO_SB_RSR)
    454 		    & ESO_SB_RSR_BUSY) == 0) {
    455 			bus_space_write_1(sc->sc_sb_iot, sc->sc_sb_ioh,
    456 			    ESO_SB_WDR, cmd);
    457 			return;
    458 		} else {
    459 			delay(10);
    460 		}
    461 	}
    462 
    463 	printf("%s: WDR timeout\n", sc->sc_dev.dv_xname);
    464 	return;
    465 }
    466 
    467 /* Write to a controller register */
    468 static void
    469 eso_write_ctlreg(sc, reg, val)
    470 	struct eso_softc *sc;
    471 	uint8_t reg, val;
    472 {
    473 
    474 	/* DPRINTF(("ctlreg 0x%02x = 0x%02x\n", reg, val)); */
    475 
    476 	eso_write_cmd(sc, reg);
    477 	eso_write_cmd(sc, val);
    478 }
    479 
    480 /* Read out the Read Data Register */
    481 static uint8_t
    482 eso_read_rdr(sc)
    483 	struct eso_softc *sc;
    484 {
    485 	int i;
    486 
    487 	for (i = 0; i < ESO_RDR_TIMEOUT; i++) {
    488 		if (bus_space_read_1(sc->sc_sb_iot, sc->sc_sb_ioh,
    489 		    ESO_SB_RBSR) & ESO_SB_RBSR_RDAV) {
    490 			return (bus_space_read_1(sc->sc_sb_iot,
    491 			    sc->sc_sb_ioh, ESO_SB_RDR));
    492 		} else {
    493 			delay(10);
    494 		}
    495 	}
    496 
    497 	printf("%s: RDR timeout\n", sc->sc_dev.dv_xname);
    498 	return (-1);
    499 }
    500 
    501 
    502 static uint8_t
    503 eso_read_ctlreg(sc, reg)
    504 	struct eso_softc *sc;
    505 	uint8_t reg;
    506 {
    507 
    508 	eso_write_cmd(sc, ESO_CMD_RCR);
    509 	eso_write_cmd(sc, reg);
    510 	return (eso_read_rdr(sc));
    511 }
    512 
    513 static void
    514 eso_write_mixreg(sc, reg, val)
    515 	struct eso_softc *sc;
    516 	uint8_t reg, val;
    517 {
    518 	int s;
    519 
    520 	/* DPRINTF(("mixreg 0x%02x = 0x%02x\n", reg, val)); */
    521 
    522 	s = splaudio();
    523 	bus_space_write_1(sc->sc_sb_iot, sc->sc_sb_ioh, ESO_SB_MIXERADDR, reg);
    524 	bus_space_write_1(sc->sc_sb_iot, sc->sc_sb_ioh, ESO_SB_MIXERDATA, val);
    525 	splx(s);
    526 }
    527 
    528 static uint8_t
    529 eso_read_mixreg(sc, reg)
    530 	struct eso_softc *sc;
    531 	uint8_t reg;
    532 {
    533 	int s;
    534 	uint8_t val;
    535 
    536 	s = splaudio();
    537 	bus_space_write_1(sc->sc_sb_iot, sc->sc_sb_ioh, ESO_SB_MIXERADDR, reg);
    538 	val = bus_space_read_1(sc->sc_sb_iot, sc->sc_sb_ioh, ESO_SB_MIXERDATA);
    539 	splx(s);
    540 
    541 	return (val);
    542 }
    543 
    544 static int
    545 eso_intr(hdl)
    546 	void *hdl;
    547 {
    548 	struct eso_softc *sc = hdl;
    549 	uint8_t irqctl;
    550 
    551 	irqctl = bus_space_read_1(sc->sc_iot, sc->sc_ioh, ESO_IO_IRQCTL);
    552 
    553 	/* If it wasn't ours, that's all she wrote. */
    554 	if ((irqctl & (ESO_IO_IRQCTL_A1IRQ | ESO_IO_IRQCTL_A2IRQ |
    555 	    ESO_IO_IRQCTL_HVIRQ | ESO_IO_IRQCTL_MPUIRQ)) == 0)
    556 		return (0);
    557 
    558 	if (irqctl & ESO_IO_IRQCTL_A1IRQ) {
    559 		/* Clear interrupt. */
    560 		(void)bus_space_read_1(sc->sc_sb_iot, sc->sc_sb_ioh,
    561 		    ESO_SB_RBSR);
    562 
    563 		if (sc->sc_rintr)
    564 			sc->sc_rintr(sc->sc_rarg);
    565 		else
    566 			wakeup(&sc->sc_rintr);
    567 	}
    568 
    569 	if (irqctl & ESO_IO_IRQCTL_A2IRQ) {
    570 		/*
    571 		 * Clear the A2 IRQ latch: the cached value reflects the
    572 		 * current DAC settings with the IRQ latch bit not set.
    573 		 */
    574 		eso_write_mixreg(sc, ESO_MIXREG_A2C2, sc->sc_a2c2);
    575 
    576 		if (sc->sc_pintr)
    577 			sc->sc_pintr(sc->sc_parg);
    578 		else
    579 			wakeup(&sc->sc_pintr);
    580 	}
    581 
    582 	if (irqctl & ESO_IO_IRQCTL_HVIRQ) {
    583 		/* Clear interrupt. */
    584 		eso_write_mixreg(sc, ESO_MIXREG_CHVIR, ESO_MIXREG_CHVIR_CHVIR);
    585 
    586 		/*
    587 		 * Raise a flag to cause a lazy update of the in-softc gain
    588 		 * values the next time the software mixer is read to keep
    589 		 * interrupt service cost low.  ~0 cannot occur otherwise
    590 		 * as the master volume has a precision of 6 bits only.
    591 		 */
    592 		sc->sc_gain[ESO_MASTER_VOL][ESO_LEFT] = (uint8_t)~0;
    593 	}
    594 
    595 #if NMPU > 0
    596 	if ((irqctl & ESO_IO_IRQCTL_MPUIRQ) && sc->sc_mpudev != NULL)
    597 		mpu_intr(sc->sc_mpudev);
    598 #endif
    599 
    600 	return (1);
    601 }
    602 
    603 /* Perform a software reset, including DMA FIFOs. */
    604 static int
    605 eso_reset(sc)
    606 	struct eso_softc *sc;
    607 {
    608 	int i;
    609 
    610 	bus_space_write_1(sc->sc_sb_iot, sc->sc_sb_ioh, ESO_SB_RESET,
    611 	    ESO_SB_RESET_SW | ESO_SB_RESET_FIFO);
    612 	/* `Delay' suggested in the data sheet. */
    613 	(void)bus_space_read_1(sc->sc_sb_iot, sc->sc_sb_ioh, ESO_SB_STATUS);
    614 	bus_space_write_1(sc->sc_sb_iot, sc->sc_sb_ioh, ESO_SB_RESET, 0);
    615 
    616 	/* Wait for reset to take effect. */
    617 	for (i = 0; i < ESO_RESET_TIMEOUT; i++) {
    618 		/* Poll for data to become available. */
    619 		if ((bus_space_read_1(sc->sc_sb_iot, sc->sc_sb_ioh,
    620 		    ESO_SB_RBSR) & ESO_SB_RBSR_RDAV) != 0 &&
    621 		    bus_space_read_1(sc->sc_sb_iot, sc->sc_sb_ioh,
    622 			ESO_SB_RDR) == ESO_SB_RDR_RESETMAGIC) {
    623 
    624 			/* Activate Solo-1 extension commands. */
    625 			eso_write_cmd(sc, ESO_CMD_EXTENB);
    626 			/* Reset mixer registers. */
    627 			eso_write_mixreg(sc, ESO_MIXREG_RESET,
    628 			    ESO_MIXREG_RESET_RESET);
    629 
    630 			return (0);
    631 		} else {
    632 			delay(1000);
    633 		}
    634 	}
    635 
    636 	printf("%s: reset timeout\n", sc->sc_dev.dv_xname);
    637 	return (-1);
    638 }
    639 
    640 
    641 /* ARGSUSED */
    642 static int
    643 eso_open(hdl, flags)
    644 	void *hdl;
    645 	int flags;
    646 {
    647 	struct eso_softc *sc = hdl;
    648 
    649 	DPRINTF(("%s: open\n", sc->sc_dev.dv_xname));
    650 
    651 	sc->sc_pintr = NULL;
    652 	sc->sc_rintr = NULL;
    653 
    654 	return (0);
    655 }
    656 
    657 static void
    658 eso_close(hdl)
    659 	void *hdl;
    660 {
    661 
    662 	DPRINTF(("%s: close\n", ((struct eso_softc *)hdl)->sc_dev.dv_xname));
    663 }
    664 
    665 static int
    666 eso_query_encoding(hdl, fp)
    667 	void *hdl;
    668 	struct audio_encoding *fp;
    669 {
    670 
    671 	switch (fp->index) {
    672 	case 0:
    673 		strcpy(fp->name, AudioEulinear);
    674 		fp->encoding = AUDIO_ENCODING_ULINEAR;
    675 		fp->precision = 8;
    676 		fp->flags = 0;
    677 		break;
    678 	case 1:
    679 		strcpy(fp->name, AudioEmulaw);
    680 		fp->encoding = AUDIO_ENCODING_ULAW;
    681 		fp->precision = 8;
    682 		fp->flags = AUDIO_ENCODINGFLAG_EMULATED;
    683 		break;
    684 	case 2:
    685 		strcpy(fp->name, AudioEalaw);
    686 		fp->encoding = AUDIO_ENCODING_ALAW;
    687 		fp->precision = 8;
    688 		fp->flags = AUDIO_ENCODINGFLAG_EMULATED;
    689 		break;
    690 	case 3:
    691 		strcpy(fp->name, AudioEslinear);
    692 		fp->encoding = AUDIO_ENCODING_SLINEAR;
    693 		fp->precision = 8;
    694 		fp->flags = 0;
    695 		break;
    696 	case 4:
    697 		strcpy(fp->name, AudioEslinear_le);
    698 		fp->encoding = AUDIO_ENCODING_SLINEAR_LE;
    699 		fp->precision = 16;
    700 		fp->flags = AUDIO_ENCODINGFLAG_EMULATED;
    701 		break;
    702 	case 5:
    703 		strcpy(fp->name, AudioEulinear_le);
    704 		fp->encoding = AUDIO_ENCODING_ULINEAR_LE;
    705 		fp->precision = 16;
    706 		fp->flags = AUDIO_ENCODINGFLAG_EMULATED;
    707 		break;
    708 	case 6:
    709 		strcpy(fp->name, AudioEslinear_be);
    710 		fp->encoding = AUDIO_ENCODING_SLINEAR_BE;
    711 		fp->precision = 16;
    712 		fp->flags = AUDIO_ENCODINGFLAG_EMULATED;
    713 		break;
    714 	case 7:
    715 		strcpy(fp->name, AudioEulinear_be);
    716 		fp->encoding = AUDIO_ENCODING_ULINEAR_BE;
    717 		fp->precision = 16;
    718 		fp->flags = AUDIO_ENCODINGFLAG_EMULATED;
    719 		break;
    720 	default:
    721 		return (EINVAL);
    722 	}
    723 
    724 	return (0);
    725 }
    726 
    727 static int
    728 eso_set_params(hdl, setmode, usemode, play, rec)
    729 	void *hdl;
    730 	int setmode, usemode;
    731 	struct audio_params *play, *rec;
    732 {
    733 	struct eso_softc *sc = hdl;
    734 	struct audio_params *p;
    735 	int mode, r[2], rd[2], clk;
    736 	unsigned int srg, fltdiv;
    737 
    738 	for (mode = AUMODE_RECORD; mode != -1;
    739 	     mode = mode == AUMODE_RECORD ? AUMODE_PLAY : -1) {
    740 		if ((setmode & mode) == 0)
    741 			continue;
    742 
    743 		p = (mode == AUMODE_PLAY) ? play : rec;
    744 
    745 		if (p->sample_rate < ESO_MINRATE ||
    746 		    p->sample_rate > ESO_MAXRATE ||
    747 		    (p->precision != 8 && p->precision != 16) ||
    748 		    (p->channels != 1 && p->channels != 2))
    749 			return (EINVAL);
    750 
    751 		p->factor = 1;
    752 		p->sw_code = NULL;
    753 		switch (p->encoding) {
    754 		case AUDIO_ENCODING_SLINEAR_BE:
    755 		case AUDIO_ENCODING_ULINEAR_BE:
    756 			if (mode == AUMODE_PLAY && p->precision == 16)
    757 				p->sw_code = swap_bytes;
    758 			break;
    759 		case AUDIO_ENCODING_SLINEAR_LE:
    760 		case AUDIO_ENCODING_ULINEAR_LE:
    761 			if (mode == AUMODE_RECORD && p->precision == 16)
    762 				p->sw_code = swap_bytes;
    763 			break;
    764 		case AUDIO_ENCODING_ULAW:
    765 			if (mode == AUMODE_PLAY) {
    766 				p->factor = 2;
    767 				p->sw_code = mulaw_to_ulinear16_le;
    768 			} else {
    769 				p->sw_code = ulinear8_to_mulaw;
    770 			}
    771 			break;
    772 		case AUDIO_ENCODING_ALAW:
    773 			if (mode == AUMODE_PLAY) {
    774 				p->factor = 2;
    775 				p->sw_code = alaw_to_ulinear16_le;
    776 			} else {
    777 				p->sw_code = ulinear8_to_alaw;
    778 			}
    779 			break;
    780 		default:
    781 			return (EINVAL);
    782 		}
    783 
    784 		/*
    785 		 * We'll compute both possible sample rate dividers and pick
    786 		 * the one with the least error.
    787 		 */
    788 #define ABS(x) ((x) < 0 ? -(x) : (x))
    789 		r[0] = ESO_CLK0 /
    790 		    (128 - (rd[0] = 128 - ESO_CLK0 / p->sample_rate));
    791 		r[1] = ESO_CLK1 /
    792 		    (128 - (rd[1] = 128 - ESO_CLK1 / p->sample_rate));
    793 
    794 		clk = ABS(p->sample_rate - r[0]) > ABS(p->sample_rate - r[1]);
    795 		srg = rd[clk] | (clk == 1 ? ESO_CLK1_SELECT : 0x00);
    796 
    797 		/* Roll-off frequency of 87%, as in the ES1888 driver. */
    798 		fltdiv = 256 - 200279L / r[clk];
    799 
    800 		/* Update to reflect the possibly inexact rate. */
    801 		p->sample_rate = r[clk];
    802 
    803 		if (mode == AUMODE_RECORD) {
    804 			/* Audio 1 */
    805 			DPRINTF(("A1 srg 0x%02x fdiv 0x%02x\n", srg, fltdiv));
    806 			eso_write_ctlreg(sc, ESO_CTLREG_SRG, srg);
    807 			eso_write_ctlreg(sc, ESO_CTLREG_FLTDIV, fltdiv);
    808 		} else {
    809 			/* Audio 2 */
    810 			DPRINTF(("A2 srg 0x%02x fdiv 0x%02x\n", srg, fltdiv));
    811 			eso_write_mixreg(sc, ESO_MIXREG_A2SRG, srg);
    812 			eso_write_mixreg(sc, ESO_MIXREG_A2FLTDIV, fltdiv);
    813 		}
    814 #undef ABS
    815 
    816 	}
    817 
    818 	return (0);
    819 }
    820 
    821 static int
    822 eso_round_blocksize(hdl, blk)
    823 	void *hdl;
    824 	int blk;
    825 {
    826 
    827 	return (blk & -32);	/* keep good alignment; at least 16 req'd */
    828 }
    829 
    830 static int
    831 eso_halt_output(hdl)
    832 	void *hdl;
    833 {
    834 	struct eso_softc *sc = hdl;
    835 	int error, s;
    836 
    837 	DPRINTF(("%s: halt_output\n", sc->sc_dev.dv_xname));
    838 
    839 	/*
    840 	 * Disable auto-initialize DMA, allowing the FIFO to drain and then
    841 	 * stop.  The interrupt callback pointer is cleared at this
    842 	 * point so that an outstanding FIFO interrupt for the remaining data
    843 	 * will be acknowledged without further processing.
    844 	 *
    845 	 * This does not immediately `abort' an operation in progress (c.f.
    846 	 * audio(9)) but is the method to leave the FIFO behind in a clean
    847 	 * state with the least hair.  (Besides, that item needs to be
    848 	 * rephrased for trigger_*()-based DMA environments.)
    849 	 */
    850 	s = splaudio();
    851 	eso_write_mixreg(sc, ESO_MIXREG_A2C1,
    852 	    ESO_MIXREG_A2C1_FIFOENB | ESO_MIXREG_A2C1_DMAENB);
    853 	bus_space_write_1(sc->sc_iot, sc->sc_ioh, ESO_IO_A2DMAM,
    854 	    ESO_IO_A2DMAM_DMAENB);
    855 
    856 	sc->sc_pintr = NULL;
    857 	error = tsleep(&sc->sc_pintr, PCATCH | PWAIT, "esoho", sc->sc_pdrain);
    858 	splx(s);
    859 
    860 	/* Shut down DMA completely. */
    861 	eso_write_mixreg(sc, ESO_MIXREG_A2C1, 0);
    862 	bus_space_write_1(sc->sc_iot, sc->sc_ioh, ESO_IO_A2DMAM, 0);
    863 
    864 	return (error == EWOULDBLOCK ? 0 : error);
    865 }
    866 
    867 static int
    868 eso_halt_input(hdl)
    869 	void *hdl;
    870 {
    871 	struct eso_softc *sc = hdl;
    872 	int error, s;
    873 
    874 	DPRINTF(("%s: halt_input\n", sc->sc_dev.dv_xname));
    875 
    876 	/* Just like eso_halt_output(), but for Audio 1. */
    877 	s = splaudio();
    878 	eso_write_ctlreg(sc, ESO_CTLREG_A1C2,
    879 	    ESO_CTLREG_A1C2_READ | ESO_CTLREG_A1C2_ADC |
    880 	    ESO_CTLREG_A1C2_DMAENB);
    881 	bus_space_write_1(sc->sc_dmac_iot, sc->sc_dmac_ioh, ESO_DMAC_MODE,
    882 	    DMA37MD_WRITE | DMA37MD_DEMAND);
    883 
    884 	sc->sc_rintr = NULL;
    885 	error = tsleep(&sc->sc_rintr, PCATCH | PWAIT, "esohi", sc->sc_rdrain);
    886 	splx(s);
    887 
    888 	/* Shut down DMA completely. */
    889 	eso_write_ctlreg(sc, ESO_CTLREG_A1C2,
    890 	    ESO_CTLREG_A1C2_READ | ESO_CTLREG_A1C2_ADC);
    891 	bus_space_write_1(sc->sc_dmac_iot, sc->sc_dmac_ioh, ESO_DMAC_MASK,
    892 	    ESO_DMAC_MASK_MASK);
    893 
    894 	return (error == EWOULDBLOCK ? 0 : error);
    895 }
    896 
    897 static int
    898 eso_getdev(hdl, retp)
    899 	void *hdl;
    900 	struct audio_device *retp;
    901 {
    902 	struct eso_softc *sc = hdl;
    903 
    904 	strncpy(retp->name, "ESS Solo-1", sizeof (retp->name));
    905 	snprintf(retp->version, sizeof (retp->version), "0x%02x",
    906 	    sc->sc_revision);
    907 	if (sc->sc_revision <
    908 	    sizeof (eso_rev2model) / sizeof (eso_rev2model[0]))
    909 		strncpy(retp->config, eso_rev2model[sc->sc_revision],
    910 		    sizeof (retp->config));
    911 	else
    912 		strncpy(retp->config, "unknown", sizeof (retp->config));
    913 
    914 	return (0);
    915 }
    916 
    917 static int
    918 eso_set_port(hdl, cp)
    919 	void *hdl;
    920 	mixer_ctrl_t *cp;
    921 {
    922 	struct eso_softc *sc = hdl;
    923 	unsigned int lgain, rgain;
    924 	uint8_t tmp;
    925 
    926 	switch (cp->dev) {
    927 	case ESO_DAC_PLAY_VOL:
    928 	case ESO_MIC_PLAY_VOL:
    929 	case ESO_LINE_PLAY_VOL:
    930 	case ESO_SYNTH_PLAY_VOL:
    931 	case ESO_CD_PLAY_VOL:
    932 	case ESO_AUXB_PLAY_VOL:
    933 	case ESO_RECORD_VOL:
    934 	case ESO_DAC_REC_VOL:
    935 	case ESO_MIC_REC_VOL:
    936 	case ESO_LINE_REC_VOL:
    937 	case ESO_SYNTH_REC_VOL:
    938 	case ESO_CD_REC_VOL:
    939 	case ESO_AUXB_REC_VOL:
    940 		if (cp->type != AUDIO_MIXER_VALUE)
    941 			return (EINVAL);
    942 
    943 		/*
    944 		 * Stereo-capable mixer ports: if we get a single-channel
    945 		 * gain value passed in, then we duplicate it to both left
    946 		 * and right channels.
    947 		 */
    948 		switch (cp->un.value.num_channels) {
    949 		case 1:
    950 			lgain = rgain = ESO_GAIN_TO_4BIT(
    951 			    cp->un.value.level[AUDIO_MIXER_LEVEL_MONO]);
    952 			break;
    953 		case 2:
    954 			lgain = ESO_GAIN_TO_4BIT(
    955 			    cp->un.value.level[AUDIO_MIXER_LEVEL_LEFT]);
    956 			rgain = ESO_GAIN_TO_4BIT(
    957 			    cp->un.value.level[AUDIO_MIXER_LEVEL_RIGHT]);
    958 			break;
    959 		default:
    960 			return (EINVAL);
    961 		}
    962 
    963 		sc->sc_gain[cp->dev][ESO_LEFT] = lgain;
    964 		sc->sc_gain[cp->dev][ESO_RIGHT] = rgain;
    965 		eso_set_gain(sc, cp->dev);
    966 		break;
    967 
    968 	case ESO_MASTER_VOL:
    969 		if (cp->type != AUDIO_MIXER_VALUE)
    970 			return (EINVAL);
    971 
    972 		/* Like above, but a precision of 6 bits. */
    973 		switch (cp->un.value.num_channels) {
    974 		case 1:
    975 			lgain = rgain = ESO_GAIN_TO_6BIT(
    976 			    cp->un.value.level[AUDIO_MIXER_LEVEL_MONO]);
    977 			break;
    978 		case 2:
    979 			lgain = ESO_GAIN_TO_6BIT(
    980 			    cp->un.value.level[AUDIO_MIXER_LEVEL_LEFT]);
    981 			rgain = ESO_GAIN_TO_6BIT(
    982 			    cp->un.value.level[AUDIO_MIXER_LEVEL_RIGHT]);
    983 			break;
    984 		default:
    985 			return (EINVAL);
    986 		}
    987 
    988 		sc->sc_gain[cp->dev][ESO_LEFT] = lgain;
    989 		sc->sc_gain[cp->dev][ESO_RIGHT] = rgain;
    990 		eso_set_gain(sc, cp->dev);
    991 		break;
    992 
    993 	case ESO_SPATIALIZER:
    994 		if (cp->type != AUDIO_MIXER_VALUE ||
    995 		    cp->un.value.num_channels != 1)
    996 			return (EINVAL);
    997 
    998 		sc->sc_gain[cp->dev][ESO_LEFT] =
    999 		    sc->sc_gain[cp->dev][ESO_RIGHT] =
   1000 		    ESO_GAIN_TO_6BIT(
   1001 			cp->un.value.level[AUDIO_MIXER_LEVEL_MONO]);
   1002 		eso_set_gain(sc, cp->dev);
   1003 		break;
   1004 
   1005 	case ESO_MONO_PLAY_VOL:
   1006 	case ESO_MONO_REC_VOL:
   1007 		if (cp->type != AUDIO_MIXER_VALUE ||
   1008 		    cp->un.value.num_channels != 1)
   1009 			return (EINVAL);
   1010 
   1011 		sc->sc_gain[cp->dev][ESO_LEFT] =
   1012 		    sc->sc_gain[cp->dev][ESO_RIGHT] =
   1013 		    ESO_GAIN_TO_4BIT(
   1014 			cp->un.value.level[AUDIO_MIXER_LEVEL_MONO]);
   1015 		eso_set_gain(sc, cp->dev);
   1016 		break;
   1017 
   1018 	case ESO_PCSPEAKER_VOL:
   1019 		if (cp->type != AUDIO_MIXER_VALUE ||
   1020 		    cp->un.value.num_channels != 1)
   1021 			return (EINVAL);
   1022 
   1023 		sc->sc_gain[cp->dev][ESO_LEFT] =
   1024 		    sc->sc_gain[cp->dev][ESO_RIGHT] =
   1025 		    ESO_GAIN_TO_3BIT(
   1026 			cp->un.value.level[AUDIO_MIXER_LEVEL_MONO]);
   1027 		eso_set_gain(sc, cp->dev);
   1028 		break;
   1029 
   1030 	case ESO_SPATIALIZER_ENABLE:
   1031 		if (cp->type != AUDIO_MIXER_ENUM)
   1032 			return (EINVAL);
   1033 
   1034 		sc->sc_spatializer = (cp->un.ord != 0);
   1035 
   1036 		tmp = eso_read_mixreg(sc, ESO_MIXREG_SPAT);
   1037 		if (sc->sc_spatializer)
   1038 			tmp |= ESO_MIXREG_SPAT_ENB;
   1039 		else
   1040 			tmp &= ~ESO_MIXREG_SPAT_ENB;
   1041 		eso_write_mixreg(sc, ESO_MIXREG_SPAT,
   1042 		    tmp | ESO_MIXREG_SPAT_RSTREL);
   1043 		break;
   1044 
   1045 	case ESO_MASTER_MUTE:
   1046 		if (cp->type != AUDIO_MIXER_ENUM)
   1047 			return (EINVAL);
   1048 
   1049 		sc->sc_mvmute = (cp->un.ord != 0);
   1050 
   1051 		if (sc->sc_mvmute) {
   1052 			eso_write_mixreg(sc, ESO_MIXREG_LMVM,
   1053 			    eso_read_mixreg(sc, ESO_MIXREG_LMVM) |
   1054 			    ESO_MIXREG_LMVM_MUTE);
   1055 			eso_write_mixreg(sc, ESO_MIXREG_RMVM,
   1056 			    eso_read_mixreg(sc, ESO_MIXREG_RMVM) |
   1057 			    ESO_MIXREG_RMVM_MUTE);
   1058 		} else {
   1059 			eso_write_mixreg(sc, ESO_MIXREG_LMVM,
   1060 			    eso_read_mixreg(sc, ESO_MIXREG_LMVM) &
   1061 			    ~ESO_MIXREG_LMVM_MUTE);
   1062 			eso_write_mixreg(sc, ESO_MIXREG_RMVM,
   1063 			    eso_read_mixreg(sc, ESO_MIXREG_RMVM) &
   1064 			    ~ESO_MIXREG_RMVM_MUTE);
   1065 		}
   1066 		break;
   1067 
   1068 	case ESO_MONOOUT_SOURCE:
   1069 		if (cp->type != AUDIO_MIXER_ENUM)
   1070 			return (EINVAL);
   1071 
   1072 		return (eso_set_monooutsrc(sc, cp->un.ord));
   1073 
   1074 	case ESO_RECORD_MONITOR:
   1075 		if (cp->type != AUDIO_MIXER_ENUM)
   1076 			return (EINVAL);
   1077 
   1078 		sc->sc_recmon = (cp->un.ord != 0);
   1079 
   1080 		tmp = eso_read_ctlreg(sc, ESO_CTLREG_ACTL);
   1081 		if (sc->sc_recmon)
   1082 			tmp |= ESO_CTLREG_ACTL_RECMON;
   1083 		else
   1084 			tmp &= ~ESO_CTLREG_ACTL_RECMON;
   1085 		eso_write_ctlreg(sc, ESO_CTLREG_ACTL, tmp);
   1086 		break;
   1087 
   1088 	case ESO_RECORD_SOURCE:
   1089 		if (cp->type != AUDIO_MIXER_ENUM)
   1090 			return (EINVAL);
   1091 
   1092 		return (eso_set_recsrc(sc, cp->un.ord));
   1093 
   1094 	case ESO_MIC_PREAMP:
   1095 		if (cp->type != AUDIO_MIXER_ENUM)
   1096 			return (EINVAL);
   1097 
   1098 		sc->sc_preamp = (cp->un.ord != 0);
   1099 
   1100 		tmp = eso_read_mixreg(sc, ESO_MIXREG_MPM);
   1101 		tmp &= ~ESO_MIXREG_MPM_RESV0;
   1102 		if (sc->sc_preamp)
   1103 			tmp |= ESO_MIXREG_MPM_PREAMP;
   1104 		else
   1105 			tmp &= ~ESO_MIXREG_MPM_PREAMP;
   1106 		eso_write_mixreg(sc, ESO_MIXREG_MPM, tmp);
   1107 		break;
   1108 
   1109 	default:
   1110 		return (EINVAL);
   1111 	}
   1112 
   1113 	return (0);
   1114 }
   1115 
   1116 static int
   1117 eso_get_port(hdl, cp)
   1118 	void *hdl;
   1119 	mixer_ctrl_t *cp;
   1120 {
   1121 	struct eso_softc *sc = hdl;
   1122 
   1123 	switch (cp->dev) {
   1124 	case ESO_MASTER_VOL:
   1125 		/* Reload from mixer after hardware volume control use. */
   1126 		if (sc->sc_gain[cp->dev][ESO_LEFT] == (uint8_t)~0)
   1127 			eso_reload_master_vol(sc);
   1128 		/* FALLTHROUGH */
   1129 	case ESO_DAC_PLAY_VOL:
   1130 	case ESO_MIC_PLAY_VOL:
   1131 	case ESO_LINE_PLAY_VOL:
   1132 	case ESO_SYNTH_PLAY_VOL:
   1133 	case ESO_CD_PLAY_VOL:
   1134 	case ESO_AUXB_PLAY_VOL:
   1135 	case ESO_RECORD_VOL:
   1136 	case ESO_DAC_REC_VOL:
   1137 	case ESO_MIC_REC_VOL:
   1138 	case ESO_LINE_REC_VOL:
   1139 	case ESO_SYNTH_REC_VOL:
   1140 	case ESO_CD_REC_VOL:
   1141 	case ESO_AUXB_REC_VOL:
   1142 		/*
   1143 		 * Stereo-capable ports: if a single-channel query is made,
   1144 		 * just return the left channel's value (since single-channel
   1145 		 * settings themselves are applied to both channels).
   1146 		 */
   1147 		switch (cp->un.value.num_channels) {
   1148 		case 1:
   1149 			cp->un.value.level[AUDIO_MIXER_LEVEL_MONO] =
   1150 			    sc->sc_gain[cp->dev][ESO_LEFT];
   1151 			break;
   1152 		case 2:
   1153 			cp->un.value.level[AUDIO_MIXER_LEVEL_LEFT] =
   1154 			    sc->sc_gain[cp->dev][ESO_LEFT];
   1155 			cp->un.value.level[AUDIO_MIXER_LEVEL_RIGHT] =
   1156 			    sc->sc_gain[cp->dev][ESO_RIGHT];
   1157 			break;
   1158 		default:
   1159 			return (EINVAL);
   1160 		}
   1161 		break;
   1162 
   1163 	case ESO_MONO_PLAY_VOL:
   1164 	case ESO_PCSPEAKER_VOL:
   1165 	case ESO_MONO_REC_VOL:
   1166 	case ESO_SPATIALIZER:
   1167 		if (cp->un.value.num_channels != 1)
   1168 			return (EINVAL);
   1169 		cp->un.value.level[AUDIO_MIXER_LEVEL_MONO] =
   1170 		    sc->sc_gain[cp->dev][ESO_LEFT];
   1171 		break;
   1172 
   1173 	case ESO_RECORD_MONITOR:
   1174 		cp->un.ord = sc->sc_recmon;
   1175 		break;
   1176 
   1177 	case ESO_RECORD_SOURCE:
   1178 		cp->un.ord = sc->sc_recsrc;
   1179 		break;
   1180 
   1181 	case ESO_MONOOUT_SOURCE:
   1182 		cp->un.ord = sc->sc_monooutsrc;
   1183 		break;
   1184 
   1185 	case ESO_SPATIALIZER_ENABLE:
   1186 		cp->un.ord = sc->sc_spatializer;
   1187 		break;
   1188 
   1189 	case ESO_MIC_PREAMP:
   1190 		cp->un.ord = sc->sc_preamp;
   1191 		break;
   1192 
   1193 	case ESO_MASTER_MUTE:
   1194 		/* Reload from mixer after hardware volume control use. */
   1195 		if (sc->sc_gain[cp->dev][ESO_LEFT] == (uint8_t)~0)
   1196 			eso_reload_master_vol(sc);
   1197 		cp->un.ord = sc->sc_mvmute;
   1198 		break;
   1199 
   1200 	default:
   1201 		return (EINVAL);
   1202 	}
   1203 
   1204 
   1205 	return (0);
   1206 
   1207 }
   1208 
   1209 static int
   1210 eso_query_devinfo(hdl, dip)
   1211 	void *hdl;
   1212 	mixer_devinfo_t *dip;
   1213 {
   1214 
   1215 	switch (dip->index) {
   1216 	case ESO_DAC_PLAY_VOL:
   1217 		dip->mixer_class = ESO_INPUT_CLASS;
   1218 		dip->next = dip->prev = AUDIO_MIXER_LAST;
   1219 		strcpy(dip->label.name, AudioNdac);
   1220 		dip->type = AUDIO_MIXER_VALUE;
   1221 		dip->un.v.num_channels = 2;
   1222 		strcpy(dip->un.v.units.name, AudioNvolume);
   1223 		break;
   1224 	case ESO_MIC_PLAY_VOL:
   1225 		dip->mixer_class = ESO_INPUT_CLASS;
   1226 		dip->next = dip->prev = AUDIO_MIXER_LAST;
   1227 		strcpy(dip->label.name, AudioNmicrophone);
   1228 		dip->type = AUDIO_MIXER_VALUE;
   1229 		dip->un.v.num_channels = 2;
   1230 		strcpy(dip->un.v.units.name, AudioNvolume);
   1231 		break;
   1232 	case ESO_LINE_PLAY_VOL:
   1233 		dip->mixer_class = ESO_INPUT_CLASS;
   1234 		dip->next = dip->prev = AUDIO_MIXER_LAST;
   1235 		strcpy(dip->label.name, AudioNline);
   1236 		dip->type = AUDIO_MIXER_VALUE;
   1237 		dip->un.v.num_channels = 2;
   1238 		strcpy(dip->un.v.units.name, AudioNvolume);
   1239 		break;
   1240 	case ESO_SYNTH_PLAY_VOL:
   1241 		dip->mixer_class = ESO_INPUT_CLASS;
   1242 		dip->next = dip->prev = AUDIO_MIXER_LAST;
   1243 		strcpy(dip->label.name, AudioNfmsynth);
   1244 		dip->type = AUDIO_MIXER_VALUE;
   1245 		dip->un.v.num_channels = 2;
   1246 		strcpy(dip->un.v.units.name, AudioNvolume);
   1247 		break;
   1248 	case ESO_MONO_PLAY_VOL:
   1249 		dip->mixer_class = ESO_INPUT_CLASS;
   1250 		dip->next = dip->prev = AUDIO_MIXER_LAST;
   1251 		strcpy(dip->label.name, "mono_in");
   1252 		dip->type = AUDIO_MIXER_VALUE;
   1253 		dip->un.v.num_channels = 1;
   1254 		strcpy(dip->un.v.units.name, AudioNvolume);
   1255 		break;
   1256 	case ESO_CD_PLAY_VOL:
   1257 		dip->mixer_class = ESO_INPUT_CLASS;
   1258 		dip->next = dip->prev = AUDIO_MIXER_LAST;
   1259 		strcpy(dip->label.name, AudioNcd);
   1260 		dip->type = AUDIO_MIXER_VALUE;
   1261 		dip->un.v.num_channels = 2;
   1262 		strcpy(dip->un.v.units.name, AudioNvolume);
   1263 		break;
   1264 	case ESO_AUXB_PLAY_VOL:
   1265 		dip->mixer_class = ESO_INPUT_CLASS;
   1266 		dip->next = dip->prev = AUDIO_MIXER_LAST;
   1267 		strcpy(dip->label.name, "auxb");
   1268 		dip->type = AUDIO_MIXER_VALUE;
   1269 		dip->un.v.num_channels = 2;
   1270 		strcpy(dip->un.v.units.name, AudioNvolume);
   1271 		break;
   1272 
   1273 	case ESO_MIC_PREAMP:
   1274 		dip->mixer_class = ESO_MICROPHONE_CLASS;
   1275 		dip->next = dip->prev = AUDIO_MIXER_LAST;
   1276 		strcpy(dip->label.name, AudioNpreamp);
   1277 		dip->type = AUDIO_MIXER_ENUM;
   1278 		dip->un.e.num_mem = 2;
   1279 		strcpy(dip->un.e.member[0].label.name, AudioNoff);
   1280 		dip->un.e.member[0].ord = 0;
   1281 		strcpy(dip->un.e.member[1].label.name, AudioNon);
   1282 		dip->un.e.member[1].ord = 1;
   1283 		break;
   1284 	case ESO_MICROPHONE_CLASS:
   1285 		dip->mixer_class = ESO_MICROPHONE_CLASS;
   1286 		dip->next = dip->prev = AUDIO_MIXER_LAST;
   1287 		strcpy(dip->label.name, AudioNmicrophone);
   1288 		dip->type = AUDIO_MIXER_CLASS;
   1289 		break;
   1290 
   1291 	case ESO_INPUT_CLASS:
   1292 		dip->mixer_class = ESO_INPUT_CLASS;
   1293 		dip->next = dip->prev = AUDIO_MIXER_LAST;
   1294 		strcpy(dip->label.name, AudioCinputs);
   1295 		dip->type = AUDIO_MIXER_CLASS;
   1296 		break;
   1297 
   1298 	case ESO_MASTER_VOL:
   1299 		dip->mixer_class = ESO_OUTPUT_CLASS;
   1300 		dip->prev = AUDIO_MIXER_LAST;
   1301 		dip->next = ESO_MASTER_MUTE;
   1302 		strcpy(dip->label.name, AudioNmaster);
   1303 		dip->type = AUDIO_MIXER_VALUE;
   1304 		dip->un.v.num_channels = 2;
   1305 		strcpy(dip->un.v.units.name, AudioNvolume);
   1306 		break;
   1307 	case ESO_MASTER_MUTE:
   1308 		dip->mixer_class = ESO_OUTPUT_CLASS;
   1309 		dip->prev = ESO_MASTER_VOL;
   1310 		dip->next = AUDIO_MIXER_LAST;
   1311 		strcpy(dip->label.name, AudioNmute);
   1312 		dip->type = AUDIO_MIXER_ENUM;
   1313 		dip->un.e.num_mem = 2;
   1314 		strcpy(dip->un.e.member[0].label.name, AudioNoff);
   1315 		dip->un.e.member[0].ord = 0;
   1316 		strcpy(dip->un.e.member[1].label.name, AudioNon);
   1317 		dip->un.e.member[1].ord = 1;
   1318 		break;
   1319 
   1320 	case ESO_PCSPEAKER_VOL:
   1321 		dip->mixer_class = ESO_OUTPUT_CLASS;
   1322 		dip->next = dip->prev = AUDIO_MIXER_LAST;
   1323 		strcpy(dip->label.name, "pc_speaker");
   1324 		dip->type = AUDIO_MIXER_VALUE;
   1325 		dip->un.v.num_channels = 1;
   1326 		strcpy(dip->un.v.units.name, AudioNvolume);
   1327 		break;
   1328 	case ESO_MONOOUT_SOURCE:
   1329 		dip->mixer_class = ESO_OUTPUT_CLASS;
   1330 		dip->next = dip->prev = AUDIO_MIXER_LAST;
   1331 		strcpy(dip->label.name, "mono_out");
   1332 		dip->type = AUDIO_MIXER_ENUM;
   1333 		dip->un.e.num_mem = 3;
   1334 		strcpy(dip->un.e.member[0].label.name, AudioNmute);
   1335 		dip->un.e.member[0].ord = ESO_MIXREG_MPM_MOMUTE;
   1336 		strcpy(dip->un.e.member[1].label.name, AudioNdac);
   1337 		dip->un.e.member[1].ord = ESO_MIXREG_MPM_MOA2R;
   1338 		strcpy(dip->un.e.member[2].label.name, AudioNmixerout);
   1339 		dip->un.e.member[2].ord = ESO_MIXREG_MPM_MOREC;
   1340 		break;
   1341 	case ESO_SPATIALIZER:
   1342 		dip->mixer_class = ESO_OUTPUT_CLASS;
   1343 		dip->prev = AUDIO_MIXER_LAST;
   1344 		dip->next = ESO_SPATIALIZER_ENABLE;
   1345 		strcpy(dip->label.name, AudioNspatial);
   1346 		dip->type = AUDIO_MIXER_VALUE;
   1347 		dip->un.v.num_channels = 1;
   1348 		strcpy(dip->un.v.units.name, "level");
   1349 		break;
   1350 	case ESO_SPATIALIZER_ENABLE:
   1351 		dip->mixer_class = ESO_OUTPUT_CLASS;
   1352 		dip->prev = ESO_SPATIALIZER;
   1353 		dip->next = AUDIO_MIXER_LAST;
   1354 		strcpy(dip->label.name, "enable");
   1355 		dip->type = AUDIO_MIXER_ENUM;
   1356 		dip->un.e.num_mem = 2;
   1357 		strcpy(dip->un.e.member[0].label.name, AudioNoff);
   1358 		dip->un.e.member[0].ord = 0;
   1359 		strcpy(dip->un.e.member[1].label.name, AudioNon);
   1360 		dip->un.e.member[1].ord = 1;
   1361 		break;
   1362 
   1363 	case ESO_OUTPUT_CLASS:
   1364 		dip->mixer_class = ESO_OUTPUT_CLASS;
   1365 		dip->next = dip->prev = AUDIO_MIXER_LAST;
   1366 		strcpy(dip->label.name, AudioCoutputs);
   1367 		dip->type = AUDIO_MIXER_CLASS;
   1368 		break;
   1369 
   1370 	case ESO_RECORD_MONITOR:
   1371 		dip->mixer_class = ESO_MONITOR_CLASS;
   1372 		dip->next = dip->prev = AUDIO_MIXER_LAST;
   1373 		strcpy(dip->label.name, AudioNmute);
   1374 		dip->type = AUDIO_MIXER_ENUM;
   1375 		dip->un.e.num_mem = 2;
   1376 		strcpy(dip->un.e.member[0].label.name, AudioNoff);
   1377 		dip->un.e.member[0].ord = 0;
   1378 		strcpy(dip->un.e.member[1].label.name, AudioNon);
   1379 		dip->un.e.member[1].ord = 1;
   1380 		break;
   1381 	case ESO_MONITOR_CLASS:
   1382 		dip->mixer_class = ESO_MONITOR_CLASS;
   1383 		dip->next = dip->prev = AUDIO_MIXER_LAST;
   1384 		strcpy(dip->label.name, AudioCmonitor);
   1385 		dip->type = AUDIO_MIXER_CLASS;
   1386 		break;
   1387 
   1388 	case ESO_RECORD_VOL:
   1389 		dip->mixer_class = ESO_RECORD_CLASS;
   1390 		dip->next = dip->prev = AUDIO_MIXER_LAST;
   1391 		strcpy(dip->label.name, AudioNrecord);
   1392 		dip->type = AUDIO_MIXER_VALUE;
   1393 		strcpy(dip->un.v.units.name, AudioNvolume);
   1394 		break;
   1395 	case ESO_RECORD_SOURCE:
   1396 		dip->mixer_class = ESO_RECORD_CLASS;
   1397 		dip->next = dip->prev = AUDIO_MIXER_LAST;
   1398 		strcpy(dip->label.name, AudioNsource);
   1399 		dip->type = AUDIO_MIXER_ENUM;
   1400 		dip->un.e.num_mem = 4;
   1401 		strcpy(dip->un.e.member[0].label.name, AudioNmicrophone);
   1402 		dip->un.e.member[0].ord = ESO_MIXREG_ERS_MIC;
   1403 		strcpy(dip->un.e.member[1].label.name, AudioNline);
   1404 		dip->un.e.member[1].ord = ESO_MIXREG_ERS_LINE;
   1405 		strcpy(dip->un.e.member[2].label.name, AudioNcd);
   1406 		dip->un.e.member[2].ord = ESO_MIXREG_ERS_CD;
   1407 		strcpy(dip->un.e.member[3].label.name, AudioNmixerout);
   1408 		dip->un.e.member[3].ord = ESO_MIXREG_ERS_MIXER;
   1409 		break;
   1410 	case ESO_DAC_REC_VOL:
   1411 		dip->mixer_class = ESO_RECORD_CLASS;
   1412 		dip->next = dip->prev = AUDIO_MIXER_LAST;
   1413 		strcpy(dip->label.name, AudioNdac);
   1414 		dip->type = AUDIO_MIXER_VALUE;
   1415 		dip->un.v.num_channels = 2;
   1416 		strcpy(dip->un.v.units.name, AudioNvolume);
   1417 		break;
   1418 	case ESO_MIC_REC_VOL:
   1419 		dip->mixer_class = ESO_RECORD_CLASS;
   1420 		dip->next = dip->prev = AUDIO_MIXER_LAST;
   1421 		strcpy(dip->label.name, AudioNmicrophone);
   1422 		dip->type = AUDIO_MIXER_VALUE;
   1423 		dip->un.v.num_channels = 2;
   1424 		strcpy(dip->un.v.units.name, AudioNvolume);
   1425 		break;
   1426 	case ESO_LINE_REC_VOL:
   1427 		dip->mixer_class = ESO_RECORD_CLASS;
   1428 		dip->next = dip->prev = AUDIO_MIXER_LAST;
   1429 		strcpy(dip->label.name, AudioNline);
   1430 		dip->type = AUDIO_MIXER_VALUE;
   1431 		dip->un.v.num_channels = 2;
   1432 		strcpy(dip->un.v.units.name, AudioNvolume);
   1433 		break;
   1434 	case ESO_SYNTH_REC_VOL:
   1435 		dip->mixer_class = ESO_RECORD_CLASS;
   1436 		dip->next = dip->prev = AUDIO_MIXER_LAST;
   1437 		strcpy(dip->label.name, AudioNfmsynth);
   1438 		dip->type = AUDIO_MIXER_VALUE;
   1439 		dip->un.v.num_channels = 2;
   1440 		strcpy(dip->un.v.units.name, AudioNvolume);
   1441 		break;
   1442 	case ESO_MONO_REC_VOL:
   1443 		dip->mixer_class = ESO_RECORD_CLASS;
   1444 		dip->next = dip->prev = AUDIO_MIXER_LAST;
   1445 		strcpy(dip->label.name, "mono_in");
   1446 		dip->type = AUDIO_MIXER_VALUE;
   1447 		dip->un.v.num_channels = 1; /* No lies */
   1448 		strcpy(dip->un.v.units.name, AudioNvolume);
   1449 		break;
   1450 	case ESO_CD_REC_VOL:
   1451 		dip->mixer_class = ESO_RECORD_CLASS;
   1452 		dip->next = dip->prev = AUDIO_MIXER_LAST;
   1453 		strcpy(dip->label.name, AudioNcd);
   1454 		dip->type = AUDIO_MIXER_VALUE;
   1455 		dip->un.v.num_channels = 2;
   1456 		strcpy(dip->un.v.units.name, AudioNvolume);
   1457 		break;
   1458 	case ESO_AUXB_REC_VOL:
   1459 		dip->mixer_class = ESO_RECORD_CLASS;
   1460 		dip->next = dip->prev = AUDIO_MIXER_LAST;
   1461 		strcpy(dip->label.name, "auxb");
   1462 		dip->type = AUDIO_MIXER_VALUE;
   1463 		dip->un.v.num_channels = 2;
   1464 		strcpy(dip->un.v.units.name, AudioNvolume);
   1465 		break;
   1466 	case ESO_RECORD_CLASS:
   1467 		dip->mixer_class = ESO_RECORD_CLASS;
   1468 		dip->next = dip->prev = AUDIO_MIXER_LAST;
   1469 		strcpy(dip->label.name, AudioCrecord);
   1470 		dip->type = AUDIO_MIXER_CLASS;
   1471 		break;
   1472 
   1473 	default:
   1474 		return (ENXIO);
   1475 	}
   1476 
   1477 	return (0);
   1478 }
   1479 
   1480 static int
   1481 eso_allocmem(sc, size, align, boundary, flags, direction, ed)
   1482 	struct eso_softc *sc;
   1483 	size_t size;
   1484 	size_t align;
   1485 	size_t boundary;
   1486 	int flags;
   1487 	int direction;
   1488 	struct eso_dma *ed;
   1489 {
   1490 	int error, wait;
   1491 
   1492 	wait = (flags & M_NOWAIT) ? BUS_DMA_NOWAIT : BUS_DMA_WAITOK;
   1493 	ed->ed_size = size;
   1494 
   1495 	error = bus_dmamem_alloc(ed->ed_dmat, ed->ed_size, align, boundary,
   1496 	    ed->ed_segs, sizeof (ed->ed_segs) / sizeof (ed->ed_segs[0]),
   1497 	    &ed->ed_nsegs, wait);
   1498 	if (error)
   1499 		goto out;
   1500 
   1501 	error = bus_dmamem_map(ed->ed_dmat, ed->ed_segs, ed->ed_nsegs,
   1502 	    ed->ed_size, &ed->ed_addr, wait | BUS_DMA_COHERENT);
   1503 	if (error)
   1504 		goto free;
   1505 
   1506 	error = bus_dmamap_create(ed->ed_dmat, ed->ed_size, 1, ed->ed_size, 0,
   1507 	    wait, &ed->ed_map);
   1508 	if (error)
   1509 		goto unmap;
   1510 
   1511 	error = bus_dmamap_load(ed->ed_dmat, ed->ed_map, ed->ed_addr,
   1512 	    ed->ed_size, NULL, wait |
   1513 	    (direction == AUMODE_RECORD) ? BUS_DMA_READ : BUS_DMA_WRITE);
   1514 	if (error)
   1515 		goto destroy;
   1516 
   1517 	return (0);
   1518 
   1519  destroy:
   1520 	bus_dmamap_destroy(ed->ed_dmat, ed->ed_map);
   1521  unmap:
   1522 	bus_dmamem_unmap(ed->ed_dmat, ed->ed_addr, ed->ed_size);
   1523  free:
   1524 	bus_dmamem_free(ed->ed_dmat, ed->ed_segs, ed->ed_nsegs);
   1525  out:
   1526 	return (error);
   1527 }
   1528 
   1529 static void
   1530 eso_freemem(ed)
   1531 	struct eso_dma *ed;
   1532 {
   1533 
   1534 	bus_dmamap_unload(ed->ed_dmat, ed->ed_map);
   1535 	bus_dmamap_destroy(ed->ed_dmat, ed->ed_map);
   1536 	bus_dmamem_unmap(ed->ed_dmat, ed->ed_addr, ed->ed_size);
   1537 	bus_dmamem_free(ed->ed_dmat, ed->ed_segs, ed->ed_nsegs);
   1538 }
   1539 
   1540 static void *
   1541 eso_allocm(hdl, direction, size, type, flags)
   1542 	void *hdl;
   1543 	int direction;
   1544 	size_t size;
   1545 	struct malloc_type *type;
   1546 	int flags;
   1547 {
   1548 	struct eso_softc *sc = hdl;
   1549 	struct eso_dma *ed;
   1550 	size_t boundary;
   1551 	int error;
   1552 
   1553 	if ((ed = malloc(sizeof (*ed), type, flags)) == NULL)
   1554 		return (NULL);
   1555 
   1556 	/*
   1557 	 * Apparently the Audio 1 DMA controller's current address
   1558 	 * register can't roll over a 64K address boundary, so we have to
   1559 	 * take care of that ourselves.  Similarly, the Audio 2 DMA
   1560 	 * controller needs a 1M address boundary.
   1561 	 */
   1562 	if (direction == AUMODE_RECORD)
   1563 		boundary = 0x10000;
   1564 	else
   1565 		boundary = 0x100000;
   1566 
   1567 #ifdef alpha
   1568 	/*
   1569 	 * XXX For Audio 1, which implements the 24 low address bits only,
   1570 	 * XXX force allocation through the (ISA) SGMAP.
   1571 	 */
   1572 	if (direction == AUMODE_RECORD)
   1573 		ed->ed_dmat = alphabus_dma_get_tag(sc->sc_dmat, ALPHA_BUS_ISA);
   1574 	else
   1575 #endif
   1576 		ed->ed_dmat = sc->sc_dmat;
   1577 
   1578 	error = eso_allocmem(sc, size, 32, boundary, flags, direction, ed);
   1579 	if (error) {
   1580 		free(ed, type);
   1581 		return (NULL);
   1582 	}
   1583 	ed->ed_next = sc->sc_dmas;
   1584 	sc->sc_dmas = ed;
   1585 
   1586 	return (KVADDR(ed));
   1587 }
   1588 
   1589 static void
   1590 eso_freem(hdl, addr, type)
   1591 	void *hdl;
   1592 	void *addr;
   1593 	struct malloc_type *type;
   1594 {
   1595 	struct eso_softc *sc = hdl;
   1596 	struct eso_dma *p, **pp;
   1597 
   1598 	for (pp = &sc->sc_dmas; (p = *pp) != NULL; pp = &p->ed_next) {
   1599 		if (KVADDR(p) == addr) {
   1600 			eso_freemem(p);
   1601 			*pp = p->ed_next;
   1602 			free(p, type);
   1603 			return;
   1604 		}
   1605 	}
   1606 }
   1607 
   1608 static size_t
   1609 eso_round_buffersize(hdl, direction, bufsize)
   1610 	void *hdl;
   1611 	int direction;
   1612 	size_t bufsize;
   1613 {
   1614 	size_t maxsize;
   1615 
   1616 	/*
   1617 	 * The playback DMA buffer size on the Solo-1 is limited to 0xfff0
   1618 	 * bytes.  This is because IO_A2DMAC is a two byte value
   1619 	 * indicating the literal byte count, and the 4 least significant
   1620 	 * bits are read-only.  Zero is not used as a special case for
   1621 	 * 0x10000.
   1622 	 *
   1623 	 * For recording, DMAC_DMAC is the byte count - 1, so 0x10000 can
   1624 	 * be represented.
   1625 	 */
   1626 	maxsize = (direction == AUMODE_PLAY) ? 0xfff0 : 0x10000;
   1627 
   1628 	if (bufsize > maxsize)
   1629 		bufsize = maxsize;
   1630 
   1631 	return (bufsize);
   1632 }
   1633 
   1634 static paddr_t
   1635 eso_mappage(hdl, addr, offs, prot)
   1636 	void *hdl;
   1637 	void *addr;
   1638 	off_t offs;
   1639 	int prot;
   1640 {
   1641 	struct eso_softc *sc = hdl;
   1642 	struct eso_dma *ed;
   1643 
   1644 	if (offs < 0)
   1645 		return (-1);
   1646 	for (ed = sc->sc_dmas; ed != NULL && KVADDR(ed) != addr;
   1647 	     ed = ed->ed_next)
   1648 		;
   1649 	if (ed == NULL)
   1650 		return (-1);
   1651 
   1652 	return (bus_dmamem_mmap(ed->ed_dmat, ed->ed_segs, ed->ed_nsegs,
   1653 	    offs, prot, BUS_DMA_WAITOK));
   1654 }
   1655 
   1656 /* ARGSUSED */
   1657 static int
   1658 eso_get_props(hdl)
   1659 	void *hdl;
   1660 {
   1661 
   1662 	return (AUDIO_PROP_MMAP | AUDIO_PROP_INDEPENDENT |
   1663 	    AUDIO_PROP_FULLDUPLEX);
   1664 }
   1665 
   1666 static int
   1667 eso_trigger_output(hdl, start, end, blksize, intr, arg, param)
   1668 	void *hdl;
   1669 	void *start, *end;
   1670 	int blksize;
   1671 	void (*intr) __P((void *));
   1672 	void *arg;
   1673 	struct audio_params *param;
   1674 {
   1675 	struct eso_softc *sc = hdl;
   1676 	struct eso_dma *ed;
   1677 	uint8_t a2c1;
   1678 
   1679 	DPRINTF((
   1680 	    "%s: trigger_output: start %p, end %p, blksize %d, intr %p(%p)\n",
   1681 	    sc->sc_dev.dv_xname, start, end, blksize, intr, arg));
   1682 	DPRINTF(("%s: param: rate %lu, encoding %u, precision %u, channels %u, sw_code %p, factor %d\n",
   1683 	    sc->sc_dev.dv_xname, param->sample_rate, param->encoding,
   1684 	    param->precision, param->channels, param->sw_code, param->factor));
   1685 
   1686 	/* Find DMA buffer. */
   1687 	for (ed = sc->sc_dmas; ed != NULL && KVADDR(ed) != start;
   1688 	     ed = ed->ed_next)
   1689 		;
   1690 	if (ed == NULL) {
   1691 		printf("%s: trigger_output: bad addr %p\n",
   1692 		    sc->sc_dev.dv_xname, start);
   1693 		return (EINVAL);
   1694 	}
   1695 
   1696 	sc->sc_pintr = intr;
   1697 	sc->sc_parg = arg;
   1698 
   1699 	/* Compute drain timeout. */
   1700 	sc->sc_pdrain = (blksize * NBBY * hz) /
   1701 	    (param->sample_rate * param->channels *
   1702 	     param->precision * param->factor) + 2;	/* slop */
   1703 
   1704 	/* DMA transfer count (in `words'!) reload using 2's complement. */
   1705 	blksize = -(blksize >> 1);
   1706 	eso_write_mixreg(sc, ESO_MIXREG_A2TCRLO, blksize & 0xff);
   1707 	eso_write_mixreg(sc, ESO_MIXREG_A2TCRHI, blksize >> 8);
   1708 
   1709 	/* Update DAC to reflect DMA count and audio parameters. */
   1710 	/* Note: we cache A2C2 in order to avoid r/m/w at interrupt time. */
   1711 	if (param->precision * param->factor == 16)
   1712 		sc->sc_a2c2 |= ESO_MIXREG_A2C2_16BIT;
   1713 	else
   1714 		sc->sc_a2c2 &= ~ESO_MIXREG_A2C2_16BIT;
   1715 	if (param->channels == 2)
   1716 		sc->sc_a2c2 |= ESO_MIXREG_A2C2_STEREO;
   1717 	else
   1718 		sc->sc_a2c2 &= ~ESO_MIXREG_A2C2_STEREO;
   1719 	if (param->encoding == AUDIO_ENCODING_SLINEAR_BE ||
   1720 	    param->encoding == AUDIO_ENCODING_SLINEAR_LE)
   1721 		sc->sc_a2c2 |= ESO_MIXREG_A2C2_SIGNED;
   1722 	else
   1723 		sc->sc_a2c2 &= ~ESO_MIXREG_A2C2_SIGNED;
   1724 	/* Unmask IRQ. */
   1725 	sc->sc_a2c2 |= ESO_MIXREG_A2C2_IRQM;
   1726 	eso_write_mixreg(sc, ESO_MIXREG_A2C2, sc->sc_a2c2);
   1727 
   1728 	/* Set up DMA controller. */
   1729 	bus_space_write_4(sc->sc_iot, sc->sc_ioh, ESO_IO_A2DMAA,
   1730 	    DMAADDR(ed));
   1731 	bus_space_write_2(sc->sc_iot, sc->sc_ioh, ESO_IO_A2DMAC,
   1732 	    (uint8_t *)end - (uint8_t *)start);
   1733 	bus_space_write_1(sc->sc_iot, sc->sc_ioh, ESO_IO_A2DMAM,
   1734 	    ESO_IO_A2DMAM_DMAENB | ESO_IO_A2DMAM_AUTO);
   1735 
   1736 	/* Start DMA. */
   1737 	a2c1 = eso_read_mixreg(sc, ESO_MIXREG_A2C1);
   1738 	a2c1 &= ~ESO_MIXREG_A2C1_RESV0; /* Paranoia? XXX bit 5 */
   1739 	a2c1 |= ESO_MIXREG_A2C1_FIFOENB | ESO_MIXREG_A2C1_DMAENB |
   1740 	    ESO_MIXREG_A2C1_AUTO;
   1741 	eso_write_mixreg(sc, ESO_MIXREG_A2C1, a2c1);
   1742 
   1743 	return (0);
   1744 }
   1745 
   1746 static int
   1747 eso_trigger_input(hdl, start, end, blksize, intr, arg, param)
   1748 	void *hdl;
   1749 	void *start, *end;
   1750 	int blksize;
   1751 	void (*intr) __P((void *));
   1752 	void *arg;
   1753 	struct audio_params *param;
   1754 {
   1755 	struct eso_softc *sc = hdl;
   1756 	struct eso_dma *ed;
   1757 	uint8_t actl, a1c1;
   1758 
   1759 	DPRINTF((
   1760 	    "%s: trigger_input: start %p, end %p, blksize %d, intr %p(%p)\n",
   1761 	    sc->sc_dev.dv_xname, start, end, blksize, intr, arg));
   1762 	DPRINTF(("%s: param: rate %lu, encoding %u, precision %u, channels %u, sw_code %p, factor %d\n",
   1763 	    sc->sc_dev.dv_xname, param->sample_rate, param->encoding,
   1764 	    param->precision, param->channels, param->sw_code, param->factor));
   1765 
   1766 	/*
   1767 	 * If we failed to configure the Audio 1 DMA controller, bail here
   1768 	 * while retaining availability of the DAC direction (in Audio 2).
   1769 	 */
   1770 	if (!sc->sc_dmac_configured)
   1771 		return (EIO);
   1772 
   1773 	/* Find DMA buffer. */
   1774 	for (ed = sc->sc_dmas; ed != NULL && KVADDR(ed) != start;
   1775 	     ed = ed->ed_next)
   1776 		;
   1777 	if (ed == NULL) {
   1778 		printf("%s: trigger_output: bad addr %p\n",
   1779 		    sc->sc_dev.dv_xname, start);
   1780 		return (EINVAL);
   1781 	}
   1782 
   1783 	sc->sc_rintr = intr;
   1784 	sc->sc_rarg = arg;
   1785 
   1786 	/* Compute drain timeout. */
   1787 	sc->sc_rdrain = (blksize * NBBY * hz) /
   1788 	    (param->sample_rate * param->channels *
   1789 	     param->precision * param->factor) + 2;	/* slop */
   1790 
   1791 	/* Set up ADC DMA converter parameters. */
   1792 	actl = eso_read_ctlreg(sc, ESO_CTLREG_ACTL);
   1793 	if (param->channels == 2) {
   1794 		actl &= ~ESO_CTLREG_ACTL_MONO;
   1795 		actl |= ESO_CTLREG_ACTL_STEREO;
   1796 	} else {
   1797 		actl &= ~ESO_CTLREG_ACTL_STEREO;
   1798 		actl |= ESO_CTLREG_ACTL_MONO;
   1799 	}
   1800 	eso_write_ctlreg(sc, ESO_CTLREG_ACTL, actl);
   1801 
   1802 	/* Set up Transfer Type: maybe move to attach time? */
   1803 	eso_write_ctlreg(sc, ESO_CTLREG_A1TT, ESO_CTLREG_A1TT_DEMAND4);
   1804 
   1805 	/* DMA transfer count reload using 2's complement. */
   1806 	blksize = -blksize;
   1807 	eso_write_ctlreg(sc, ESO_CTLREG_A1TCRLO, blksize & 0xff);
   1808 	eso_write_ctlreg(sc, ESO_CTLREG_A1TCRHI, blksize >> 8);
   1809 
   1810 	/* Set up and enable Audio 1 DMA FIFO. */
   1811 	a1c1 = ESO_CTLREG_A1C1_RESV1 | ESO_CTLREG_A1C1_FIFOENB;
   1812 	if (param->precision * param->factor == 16)
   1813 		a1c1 |= ESO_CTLREG_A1C1_16BIT;
   1814 	if (param->channels == 2)
   1815 		a1c1 |= ESO_CTLREG_A1C1_STEREO;
   1816 	else
   1817 		a1c1 |= ESO_CTLREG_A1C1_MONO;
   1818 	if (param->encoding == AUDIO_ENCODING_SLINEAR_BE ||
   1819 	    param->encoding == AUDIO_ENCODING_SLINEAR_LE)
   1820 		a1c1 |= ESO_CTLREG_A1C1_SIGNED;
   1821 	eso_write_ctlreg(sc, ESO_CTLREG_A1C1, a1c1);
   1822 
   1823 	/* Set up ADC IRQ/DRQ parameters. */
   1824 	eso_write_ctlreg(sc, ESO_CTLREG_LAIC,
   1825 	    ESO_CTLREG_LAIC_PINENB | ESO_CTLREG_LAIC_EXTENB);
   1826 	eso_write_ctlreg(sc, ESO_CTLREG_DRQCTL,
   1827 	    ESO_CTLREG_DRQCTL_ENB1 | ESO_CTLREG_DRQCTL_EXTENB);
   1828 
   1829 	/* Set up and enable DMA controller. */
   1830 	bus_space_write_1(sc->sc_dmac_iot, sc->sc_dmac_ioh, ESO_DMAC_CLEAR, 0);
   1831 	bus_space_write_1(sc->sc_dmac_iot, sc->sc_dmac_ioh, ESO_DMAC_MASK,
   1832 	    ESO_DMAC_MASK_MASK);
   1833 	bus_space_write_1(sc->sc_dmac_iot, sc->sc_dmac_ioh, ESO_DMAC_MODE,
   1834 	    DMA37MD_WRITE | DMA37MD_LOOP | DMA37MD_DEMAND);
   1835 	bus_space_write_4(sc->sc_dmac_iot, sc->sc_dmac_ioh, ESO_DMAC_DMAA,
   1836 	    DMAADDR(ed));
   1837 	bus_space_write_2(sc->sc_dmac_iot, sc->sc_dmac_ioh, ESO_DMAC_DMAC,
   1838 	    (uint8_t *)end - (uint8_t *)start - 1);
   1839 	bus_space_write_1(sc->sc_dmac_iot, sc->sc_dmac_ioh, ESO_DMAC_MASK, 0);
   1840 
   1841 	/* Start DMA. */
   1842 	eso_write_ctlreg(sc, ESO_CTLREG_A1C2,
   1843 	    ESO_CTLREG_A1C2_DMAENB | ESO_CTLREG_A1C2_READ |
   1844 	    ESO_CTLREG_A1C2_AUTO | ESO_CTLREG_A1C2_ADC);
   1845 
   1846 	return (0);
   1847 }
   1848 
   1849 static int
   1850 eso_set_monooutsrc(sc, monooutsrc)
   1851 	struct eso_softc *sc;
   1852 	unsigned int monooutsrc;
   1853 {
   1854 	mixer_devinfo_t di;
   1855 	int i;
   1856 	uint8_t mpm;
   1857 
   1858 	di.index = ESO_MONOOUT_SOURCE;
   1859 	if (eso_query_devinfo(sc, &di) != 0)
   1860 		panic("eso_set_monooutsrc: eso_query_devinfo failed");
   1861 
   1862 	for (i = 0; i < di.un.e.num_mem; i++) {
   1863 		if (monooutsrc == di.un.e.member[i].ord) {
   1864 			mpm = eso_read_mixreg(sc, ESO_MIXREG_MPM);
   1865 			mpm &= ~ESO_MIXREG_MPM_MOMASK;
   1866 			mpm |= monooutsrc;
   1867 			eso_write_mixreg(sc, ESO_MIXREG_MPM, mpm);
   1868 			sc->sc_monooutsrc = monooutsrc;
   1869 			return (0);
   1870 		}
   1871 	}
   1872 
   1873 	return (EINVAL);
   1874 }
   1875 
   1876 static int
   1877 eso_set_recsrc(sc, recsrc)
   1878 	struct eso_softc *sc;
   1879 	unsigned int recsrc;
   1880 {
   1881 	mixer_devinfo_t di;
   1882 	int i;
   1883 
   1884 	di.index = ESO_RECORD_SOURCE;
   1885 	if (eso_query_devinfo(sc, &di) != 0)
   1886 		panic("eso_set_recsrc: eso_query_devinfo failed");
   1887 
   1888 	for (i = 0; i < di.un.e.num_mem; i++) {
   1889 		if (recsrc == di.un.e.member[i].ord) {
   1890 			eso_write_mixreg(sc, ESO_MIXREG_ERS, recsrc);
   1891 			sc->sc_recsrc = recsrc;
   1892 			return (0);
   1893 		}
   1894 	}
   1895 
   1896 	return (EINVAL);
   1897 }
   1898 
   1899 /*
   1900  * Reload Master Volume and Mute values in softc from mixer; used when
   1901  * those have previously been invalidated by use of hardware volume controls.
   1902  */
   1903 static void
   1904 eso_reload_master_vol(sc)
   1905 	struct eso_softc *sc;
   1906 {
   1907 	uint8_t mv;
   1908 
   1909 	mv = eso_read_mixreg(sc, ESO_MIXREG_LMVM);
   1910 	sc->sc_gain[ESO_MASTER_VOL][ESO_LEFT] =
   1911 	    (mv & ~ESO_MIXREG_LMVM_MUTE) << 2;
   1912 	mv = eso_read_mixreg(sc, ESO_MIXREG_LMVM);
   1913 	sc->sc_gain[ESO_MASTER_VOL][ESO_RIGHT] =
   1914 	    (mv & ~ESO_MIXREG_RMVM_MUTE) << 2;
   1915 	/* Currently both channels are muted simultaneously; either is OK. */
   1916 	sc->sc_mvmute = (mv & ESO_MIXREG_RMVM_MUTE) != 0;
   1917 }
   1918 
   1919 static void
   1920 eso_set_gain(sc, port)
   1921 	struct eso_softc *sc;
   1922 	unsigned int port;
   1923 {
   1924 	uint8_t mixreg, tmp;
   1925 
   1926 	switch (port) {
   1927 	case ESO_DAC_PLAY_VOL:
   1928 		mixreg = ESO_MIXREG_PVR_A2;
   1929 		break;
   1930 	case ESO_MIC_PLAY_VOL:
   1931 		mixreg = ESO_MIXREG_PVR_MIC;
   1932 		break;
   1933 	case ESO_LINE_PLAY_VOL:
   1934 		mixreg = ESO_MIXREG_PVR_LINE;
   1935 		break;
   1936 	case ESO_SYNTH_PLAY_VOL:
   1937 		mixreg = ESO_MIXREG_PVR_SYNTH;
   1938 		break;
   1939 	case ESO_CD_PLAY_VOL:
   1940 		mixreg = ESO_MIXREG_PVR_CD;
   1941 		break;
   1942 	case ESO_AUXB_PLAY_VOL:
   1943 		mixreg = ESO_MIXREG_PVR_AUXB;
   1944 		break;
   1945 
   1946 	case ESO_DAC_REC_VOL:
   1947 		mixreg = ESO_MIXREG_RVR_A2;
   1948 		break;
   1949 	case ESO_MIC_REC_VOL:
   1950 		mixreg = ESO_MIXREG_RVR_MIC;
   1951 		break;
   1952 	case ESO_LINE_REC_VOL:
   1953 		mixreg = ESO_MIXREG_RVR_LINE;
   1954 		break;
   1955 	case ESO_SYNTH_REC_VOL:
   1956 		mixreg = ESO_MIXREG_RVR_SYNTH;
   1957 		break;
   1958 	case ESO_CD_REC_VOL:
   1959 		mixreg = ESO_MIXREG_RVR_CD;
   1960 		break;
   1961 	case ESO_AUXB_REC_VOL:
   1962 		mixreg = ESO_MIXREG_RVR_AUXB;
   1963 		break;
   1964 	case ESO_MONO_PLAY_VOL:
   1965 		mixreg = ESO_MIXREG_PVR_MONO;
   1966 		break;
   1967 	case ESO_MONO_REC_VOL:
   1968 		mixreg = ESO_MIXREG_RVR_MONO;
   1969 		break;
   1970 
   1971 	case ESO_PCSPEAKER_VOL:
   1972 		/* Special case - only 3-bit, mono, and reserved bits. */
   1973 		tmp = eso_read_mixreg(sc, ESO_MIXREG_PCSVR);
   1974 		tmp &= ESO_MIXREG_PCSVR_RESV;
   1975 		/* Map bits 7:5 -> 2:0. */
   1976 		tmp |= (sc->sc_gain[port][ESO_LEFT] >> 5);
   1977 		eso_write_mixreg(sc, ESO_MIXREG_PCSVR, tmp);
   1978 		return;
   1979 
   1980 	case ESO_MASTER_VOL:
   1981 		/* Special case - separate regs, and 6-bit precision. */
   1982 		/* Map bits 7:2 -> 5:0, reflect mute settings. */
   1983 		eso_write_mixreg(sc, ESO_MIXREG_LMVM,
   1984 		    (sc->sc_gain[port][ESO_LEFT] >> 2) |
   1985 		    (sc->sc_mvmute ? ESO_MIXREG_LMVM_MUTE : 0x00));
   1986 		eso_write_mixreg(sc, ESO_MIXREG_RMVM,
   1987 		    (sc->sc_gain[port][ESO_RIGHT] >> 2) |
   1988 		    (sc->sc_mvmute ? ESO_MIXREG_RMVM_MUTE : 0x00));
   1989 		return;
   1990 
   1991 	case ESO_SPATIALIZER:
   1992 		/* Special case - only `mono', and higher precision. */
   1993 		eso_write_mixreg(sc, ESO_MIXREG_SPATLVL,
   1994 		    sc->sc_gain[port][ESO_LEFT]);
   1995 		return;
   1996 
   1997 	case ESO_RECORD_VOL:
   1998 		/* Very Special case, controller register. */
   1999 		eso_write_ctlreg(sc, ESO_CTLREG_RECLVL,ESO_4BIT_GAIN_TO_STEREO(
   2000 		   sc->sc_gain[port][ESO_LEFT], sc->sc_gain[port][ESO_RIGHT]));
   2001 		return;
   2002 
   2003 	default:
   2004 #ifdef DIAGNOSTIC
   2005 		panic("eso_set_gain: bad port %u", port);
   2006 		/* NOTREACHED */
   2007 #else
   2008 		return;
   2009 #endif
   2010 		}
   2011 
   2012 	eso_write_mixreg(sc, mixreg, ESO_4BIT_GAIN_TO_STEREO(
   2013 	    sc->sc_gain[port][ESO_LEFT], sc->sc_gain[port][ESO_RIGHT]));
   2014 }
   2015