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esa.c revision 1.21
      1 /* $NetBSD: esa.c,v 1.21 2003/07/14 15:47:23 lukem Exp $ */
      2 
      3 /*
      4  * Copyright (c) 2001, 2002 Jared D. McNeill <jmcneill (at) invisible.ca>
      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. The name of the author may not be used to endorse or promote products
     13  *    derived from this software without specific prior written permission.
     14  *
     15  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
     16  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
     17  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
     18  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
     19  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
     20  * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
     21  * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
     22  * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
     23  * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     24  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     25  * SUCH DAMAGE.
     26  */
     27 
     28 /*
     29  * ESS Allegro-1 / Maestro3 Audio Driver
     30  *
     31  * Based on the FreeBSD maestro3 driver and the NetBSD eap driver.
     32  * Original driver by Don Kim.
     33  *
     34  * The list management code could possibly be written better, but what
     35  * we have right now does the job nicely. Thanks to Zach Brown <zab (at) zabbo.net>
     36  * and Andrew MacDonald <amac (at) epsilon.yi.org> for helping me debug the
     37  * problems with the original list management code present in the Linux
     38  * driver.
     39  */
     40 
     41 #include <sys/cdefs.h>
     42 __KERNEL_RCSID(0, "$NetBSD: esa.c,v 1.21 2003/07/14 15:47:23 lukem Exp $");
     43 
     44 #include <sys/types.h>
     45 #include <sys/errno.h>
     46 #include <sys/null.h>
     47 #include <sys/param.h>
     48 #include <sys/systm.h>
     49 #include <sys/malloc.h>
     50 #include <sys/device.h>
     51 #include <sys/conf.h>
     52 #include <sys/exec.h>
     53 #include <sys/select.h>
     54 #include <sys/audioio.h>
     55 
     56 #include <machine/bus.h>
     57 #include <machine/intr.h>
     58 
     59 #include <dev/pci/pcidevs.h>
     60 #include <dev/pci/pcivar.h>
     61 
     62 #include <dev/audio_if.h>
     63 #include <dev/mulaw.h>
     64 #include <dev/auconv.h>
     65 #include <dev/ic/ac97var.h>
     66 #include <dev/ic/ac97reg.h>
     67 
     68 #include <dev/pci/esareg.h>
     69 #include <dev/pci/esadsp.h>
     70 #include <dev/pci/esavar.h>
     71 
     72 #define PCI_CBIO	0x10
     73 
     74 #define ESA_DAC_DATA	0x1100
     75 
     76 enum {
     77 	ESS_ALLEGRO1,
     78 	ESS_MAESTRO3
     79 };
     80 
     81 static struct esa_card_type {
     82 	u_int16_t pci_vendor_id;
     83 	u_int16_t pci_product_id;
     84 	int type;
     85 	int delay1, delay2;
     86 } esa_card_types[] = {
     87 	{ PCI_VENDOR_ESSTECH, PCI_PRODUCT_ESSTECH_ALLEGRO1,
     88 	  ESS_ALLEGRO1, 50, 800 },
     89 	{ PCI_VENDOR_ESSTECH, PCI_PRODUCT_ESSTECH_MAESTRO3,
     90 	  ESS_MAESTRO3, 20, 500 },
     91 	{ PCI_VENDOR_ESSTECH, PCI_PRODUCT_ESSTECH_MAESTRO3_2,
     92 	  ESS_MAESTRO3, 20, 500 },
     93 	{ 0, 0, 0, 0, 0 }
     94 };
     95 
     96 struct audio_device esa_device = {
     97 	"ESS Allegro",
     98 	"",
     99 	"esa"
    100 };
    101 
    102 int		esa_match(struct device *, struct cfdata *, void *);
    103 void		esa_attach(struct device *, struct device *, void *);
    104 int		esa_detach(struct device *, int);
    105 
    106 /* audio(9) functions */
    107 int		esa_open(void *, int);
    108 void		esa_close(void *);
    109 int		esa_query_encoding(void *, struct audio_encoding *);
    110 int		esa_set_params(void *, int, int, struct audio_params *,
    111 			       struct audio_params *);
    112 int		esa_round_blocksize(void *, int);
    113 int		esa_commit_settings(void *);
    114 int		esa_halt_output(void *);
    115 int		esa_halt_input(void *);
    116 int		esa_set_port(void *, mixer_ctrl_t *);
    117 int		esa_get_port(void *, mixer_ctrl_t *);
    118 int		esa_query_devinfo(void *, mixer_devinfo_t *);
    119 void *		esa_malloc(void *, int, size_t, struct malloc_type *, int);
    120 void		esa_free(void *, void *, struct malloc_type *);
    121 int		esa_getdev(void *, struct audio_device *);
    122 size_t		esa_round_buffersize(void *, int, size_t);
    123 int		esa_get_props(void *);
    124 int		esa_trigger_output(void *, void *, void *, int,
    125 				   void (*)(void *), void *,
    126 				   struct audio_params *);
    127 int		esa_trigger_input(void *, void *, void *, int,
    128 				  void (*)(void *), void *,
    129 				  struct audio_params *);
    130 
    131 int		esa_intr(void *);
    132 int		esa_allocmem(struct esa_softc *, size_t, size_t,
    133 			     struct esa_dma *);
    134 int		esa_freemem(struct esa_softc *, struct esa_dma *);
    135 paddr_t		esa_mappage(void *addr, void *mem, off_t off, int prot);
    136 
    137 /* Supporting subroutines */
    138 u_int16_t	esa_read_assp(struct esa_softc *, u_int16_t, u_int16_t);
    139 void		esa_write_assp(struct esa_softc *, u_int16_t, u_int16_t,
    140 			       u_int16_t);
    141 int		esa_init_codec(struct esa_softc *);
    142 int		esa_attach_codec(void *, struct ac97_codec_if *);
    143 int		esa_read_codec(void *, u_int8_t, u_int16_t *);
    144 int		esa_write_codec(void *, u_int8_t, u_int16_t);
    145 void		esa_reset_codec(void *);
    146 enum ac97_host_flags	esa_flags_codec(void *);
    147 int		esa_wait(struct esa_softc *);
    148 int		esa_init(struct esa_softc *);
    149 void		esa_config(struct esa_softc *);
    150 u_int8_t	esa_assp_halt(struct esa_softc *);
    151 void		esa_codec_reset(struct esa_softc *);
    152 int		esa_amp_enable(struct esa_softc *);
    153 void		esa_enable_interrupts(struct esa_softc *);
    154 u_int32_t	esa_get_pointer(struct esa_softc *, struct esa_channel *);
    155 
    156 /* list management */
    157 int		esa_add_list(struct esa_voice *, struct esa_list *, u_int16_t,
    158 			     int);
    159 void		esa_remove_list(struct esa_voice *, struct esa_list *, int);
    160 
    161 /* power management */
    162 int		esa_power(struct esa_softc *, int);
    163 void		esa_powerhook(int, void *);
    164 int		esa_suspend(struct esa_softc *);
    165 int		esa_resume(struct esa_softc *);
    166 
    167 static audio_encoding_t esa_encoding[] = {
    168 	{ 0, AudioEulinear, AUDIO_ENCODING_ULINEAR, 8, 0 },
    169 	{ 1, AudioEmulaw, AUDIO_ENCODING_ULAW, 8,
    170 		AUDIO_ENCODINGFLAG_EMULATED },
    171 	{ 2, AudioEalaw, AUDIO_ENCODING_ALAW, 8, AUDIO_ENCODINGFLAG_EMULATED },
    172 	{ 3, AudioEslinear, AUDIO_ENCODING_SLINEAR, 8,
    173 		AUDIO_ENCODINGFLAG_EMULATED }, /* XXX: Are you sure? */
    174 	{ 4, AudioEslinear_le, AUDIO_ENCODING_SLINEAR_LE, 16, 0 },
    175 	{ 5, AudioEulinear_le, AUDIO_ENCODING_ULINEAR_LE, 16,
    176 		AUDIO_ENCODINGFLAG_EMULATED },
    177 	{ 6, AudioEslinear_be, AUDIO_ENCODING_SLINEAR_BE, 16,
    178 		AUDIO_ENCODINGFLAG_EMULATED },
    179 	{ 7, AudioEulinear_be, AUDIO_ENCODING_ULINEAR_BE, 16,
    180 		AUDIO_ENCODINGFLAG_EMULATED }
    181 };
    182 
    183 #define ESA_NENCODINGS 8
    184 
    185 struct audio_hw_if esa_hw_if = {
    186 	esa_open,
    187 	esa_close,
    188 	NULL,			/* drain */
    189 	esa_query_encoding,
    190 	esa_set_params,
    191 	esa_round_blocksize,
    192 	esa_commit_settings,
    193 	NULL,			/* init_output */
    194 	NULL,			/* init_input */
    195 	NULL,			/* start_output */
    196 	NULL,			/* start_input */
    197 	esa_halt_output,
    198 	esa_halt_input,
    199 	NULL,			/* speaker_ctl */
    200 	esa_getdev,
    201 	NULL,			/* getfd */
    202 	esa_set_port,
    203 	esa_get_port,
    204 	esa_query_devinfo,
    205 	esa_malloc,
    206 	esa_free,
    207 	esa_round_buffersize,
    208 	esa_mappage,
    209 	esa_get_props,
    210 	esa_trigger_output,
    211 	esa_trigger_input
    212 };
    213 
    214 CFATTACH_DECL(esa, sizeof(struct esa_softc), esa_match, esa_attach,
    215     esa_detach, NULL);
    216 
    217 /*
    218  * audio(9) functions
    219  */
    220 
    221 int
    222 esa_open(void *hdl, int flags)
    223 {
    224 
    225 	return (0);
    226 }
    227 
    228 void
    229 esa_close(void *hdl)
    230 {
    231 
    232 	return;
    233 }
    234 
    235 int
    236 esa_query_encoding(void *hdl, struct audio_encoding *ae)
    237 {
    238 
    239 	if (ae->index < 0 || ae->index >= ESA_NENCODINGS)
    240 		return (EINVAL);
    241 	*ae = esa_encoding[ae->index];
    242 
    243 	return (0);
    244 }
    245 
    246 int
    247 esa_set_params(void *hdl, int setmode, int usemode, struct audio_params *play,
    248 	       struct audio_params *rec)
    249 {
    250 	struct esa_voice *vc = hdl;
    251 	//struct esa_softc *sc = (struct esa_softc *)vc->parent;
    252 	struct esa_channel *ch;
    253 	struct audio_params *p;
    254 	int mode;
    255 
    256 	for (mode = AUMODE_RECORD; mode != -1;
    257 	     mode = (mode == AUMODE_RECORD) ? AUMODE_PLAY : -1) {
    258 		if ((setmode & mode) == 0)
    259 			continue;
    260 
    261 		switch (mode) {
    262 		case AUMODE_PLAY:
    263 			p = play;
    264 			ch = &vc->play;
    265 			break;
    266 		case AUMODE_RECORD:
    267 			p = rec;
    268 			ch = &vc->rec;
    269 			break;
    270 		}
    271 
    272 		if (p->sample_rate < ESA_MINRATE ||
    273 		    p->sample_rate > ESA_MAXRATE ||
    274 		    (p->precision != 8 && p->precision != 16) ||
    275 		    (p->channels < 1 && p->channels > 2))
    276 			return (EINVAL);
    277 
    278 		p->factor = 1;
    279 		p->sw_code = 0;
    280 
    281 		switch(p->encoding) {
    282 		case AUDIO_ENCODING_SLINEAR_BE:
    283 			if (p->precision == 16)
    284 				p->sw_code = swap_bytes;
    285 			else
    286 				p->sw_code = change_sign8;
    287 			break;
    288 		case AUDIO_ENCODING_SLINEAR_LE:
    289 			if (p->precision != 16)
    290 				p->sw_code = change_sign8;
    291 			break;
    292 		case AUDIO_ENCODING_ULINEAR_BE:
    293 			if (p->precision == 16) {
    294 				if (mode == AUMODE_PLAY)
    295 					p->sw_code =
    296 					    swap_bytes_change_sign16_le;
    297 				else
    298 					p->sw_code =
    299 					    change_sign16_swap_bytes_le;
    300 			}
    301 			break;
    302 		case AUDIO_ENCODING_ULINEAR_LE:
    303 			if (p->precision == 16)
    304 				p->sw_code = change_sign16_le;
    305 			break;
    306 		case AUDIO_ENCODING_ULAW:
    307 			if (mode == AUMODE_PLAY) {
    308 				p->factor = 2;
    309 				p->sw_code = mulaw_to_slinear16_le;
    310 			} else
    311 				p->sw_code = ulinear8_to_mulaw;
    312 			break;
    313 		case AUDIO_ENCODING_ALAW:
    314 			if (mode == AUMODE_PLAY) {
    315 				p->factor = 2;
    316 				p->sw_code = alaw_to_slinear16_le;
    317 			} else
    318 				p->sw_code = ulinear8_to_alaw;
    319 			break;
    320 		default:
    321 			return (EINVAL);
    322 		}
    323 
    324 		ch->mode = *p;
    325 	}
    326 
    327 	return (0);
    328 }
    329 
    330 int
    331 esa_commit_settings(void *hdl)
    332 {
    333 	struct esa_voice *vc = hdl;
    334 	struct esa_softc *sc = (struct esa_softc *)vc->parent;
    335 	struct audio_params *p = &vc->play.mode;
    336 	struct audio_params *r = &vc->rec.mode;
    337 	u_int32_t data;
    338 	u_int32_t freq;
    339 	int data_bytes = (((ESA_MINISRC_TMP_BUFFER_SIZE & ~1) +
    340 			   (ESA_MINISRC_IN_BUFFER_SIZE & ~1) +
    341 			   (ESA_MINISRC_OUT_BUFFER_SIZE & ~1) + 4) + 255)
    342 			   &~ 255;
    343 
    344 	/* playback */
    345 	vc->play.data_offset = ESA_DAC_DATA + (data_bytes * vc->index);
    346 	if (p->channels == 1)
    347 		data = 1;
    348 	else
    349 		data = 0;
    350 	esa_write_assp(sc, ESA_MEMTYPE_INTERNAL_DATA,
    351 		       vc->play.data_offset + ESA_SRC3_MODE_OFFSET,
    352 		       data);
    353 	if (p->precision * p->factor == 8)
    354 		data = 1;
    355 	else
    356 		data = 0;
    357 	esa_write_assp(sc, ESA_MEMTYPE_INTERNAL_DATA,
    358 		       vc->play.data_offset + ESA_SRC3_WORD_LENGTH_OFFSET,
    359 		       data);
    360 	if ((freq = ((p->sample_rate << 15) + 24000) / 48000) != 0) {
    361 		freq--;
    362 	}
    363 	esa_write_assp(sc, ESA_MEMTYPE_INTERNAL_DATA,
    364 		       vc->play.data_offset + ESA_CDATA_FREQUENCY, freq);
    365 
    366 	/* recording */
    367 	vc->rec.data_offset = ESA_DAC_DATA + (data_bytes * vc->index) +
    368 			      (data_bytes / 2);
    369 	if (r->channels == 1)
    370 		data = 1;
    371 	else
    372 		data = 0;
    373 	esa_write_assp(sc, ESA_MEMTYPE_INTERNAL_DATA,
    374 		       vc->rec.data_offset + ESA_SRC3_MODE_OFFSET,
    375 		       data);
    376 	if (r->precision * r->factor == 8)
    377 		data = 1;
    378 	else
    379 		data = 0;
    380 	esa_write_assp(sc, ESA_MEMTYPE_INTERNAL_DATA,
    381 		       vc->rec.data_offset + ESA_SRC3_WORD_LENGTH_OFFSET,
    382 		       data);
    383 	if ((freq = ((r->sample_rate << 15) + 24000) / 48000) != 0) {
    384 		freq--;
    385 	}
    386 	esa_write_assp(sc, ESA_MEMTYPE_INTERNAL_DATA,
    387 		       vc->rec.data_offset + ESA_CDATA_FREQUENCY, freq);
    388 
    389 	return (0);
    390 };
    391 
    392 int
    393 esa_round_blocksize(void *hdl, int bs)
    394 {
    395 	struct esa_voice *vc = hdl;
    396 
    397 	/*
    398 	 * Surely there has to be a better solution...
    399 	 */
    400 	vc->play.blksize = vc->rec.blksize = 4096;
    401 
    402 	return (vc->play.blksize);
    403 }
    404 
    405 int
    406 esa_halt_output(void *hdl)
    407 {
    408 	struct esa_voice *vc = hdl;
    409 	struct esa_softc *sc = (struct esa_softc *)vc->parent;
    410 	bus_space_tag_t iot = sc->sc_iot;
    411 	bus_space_handle_t ioh = sc->sc_ioh;
    412 	u_int16_t data;
    413 
    414 	if (vc->play.active == 0)
    415 		return (0);
    416 
    417 	vc->play.active = 0;
    418 
    419 	esa_write_assp(sc, ESA_MEMTYPE_INTERNAL_DATA,
    420 		       ESA_CDATA_INSTANCE_READY + vc->play.data_offset, 0);
    421 
    422 	sc->sc_ntimers--;
    423 	if (sc->sc_ntimers == 0) {
    424 		esa_write_assp(sc, ESA_MEMTYPE_INTERNAL_DATA,
    425 			       ESA_KDATA_TIMER_COUNT_RELOAD, 0);
    426 		esa_write_assp(sc, ESA_MEMTYPE_INTERNAL_DATA,
    427 			       ESA_KDATA_TIMER_COUNT_CURRENT, 0);
    428 		data = bus_space_read_2(iot, ioh, ESA_HOST_INT_CTRL);
    429 		bus_space_write_2(iot, ioh, ESA_HOST_INT_CTRL,
    430 		    data & ~ESA_CLKRUN_GEN_ENABLE);
    431 	}
    432 
    433 	esa_write_assp(sc, ESA_MEMTYPE_INTERNAL_DATA,
    434 		       ESA_KDATA_MIXER_TASK_NUMBER,
    435 		       sc->mixer_list.indexmap[vc->index]);
    436 	/* remove ourselves from the packed lists */
    437 	esa_remove_list(vc, &sc->mixer_list, vc->index);
    438 	esa_remove_list(vc, &sc->dma_list, vc->index);
    439 	esa_remove_list(vc, &sc->msrc_list, vc->index);
    440 
    441 	return (0);
    442 }
    443 
    444 int
    445 esa_halt_input(void *hdl)
    446 {
    447 	struct esa_voice *vc = hdl;
    448 	struct esa_softc *sc = (struct esa_softc *)vc->parent;
    449 	bus_space_tag_t iot = sc->sc_iot;
    450 	bus_space_handle_t ioh = sc->sc_ioh;
    451 	u_int32_t data;
    452 
    453 	if (vc->rec.active == 0)
    454 		return (0);
    455 
    456 	vc->rec.active = 0;
    457 
    458 	sc->sc_ntimers--;
    459 	if (sc->sc_ntimers == 0) {
    460 		esa_write_assp(sc, ESA_MEMTYPE_INTERNAL_DATA,
    461 			       ESA_KDATA_TIMER_COUNT_RELOAD, 0);
    462 		esa_write_assp(sc, ESA_MEMTYPE_INTERNAL_DATA,
    463 			       ESA_KDATA_TIMER_COUNT_CURRENT, 0);
    464 		data = bus_space_read_2(iot, ioh, ESA_HOST_INT_CTRL);
    465 		bus_space_write_2(iot, ioh, ESA_HOST_INT_CTRL,
    466 				  data & ~ESA_CLKRUN_GEN_ENABLE);
    467 	}
    468 
    469 	esa_write_assp(sc, ESA_MEMTYPE_INTERNAL_DATA, vc->rec.data_offset +
    470 		       ESA_CDATA_INSTANCE_READY, 0);
    471 	esa_write_assp(sc, ESA_MEMTYPE_INTERNAL_DATA, ESA_KDATA_ADC1_REQUEST,
    472 		       0);
    473 
    474 	/* remove ourselves from the packed lists */
    475 	esa_remove_list(vc, &sc->adc1_list, vc->index + ESA_NUM_VOICES);
    476 	esa_remove_list(vc, &sc->dma_list, vc->index + ESA_NUM_VOICES);
    477 	esa_remove_list(vc, &sc->msrc_list, vc->index + ESA_NUM_VOICES);
    478 
    479 	return (0);
    480 }
    481 
    482 void *
    483 esa_malloc(void *hdl, int direction, size_t size, struct malloc_type *type,
    484     int flags)
    485 {
    486 	struct esa_voice *vc = hdl;
    487 	struct esa_softc *sc = (struct esa_softc *)vc->parent;
    488 	struct esa_dma *p;
    489 	int error;
    490 
    491 	p = malloc(sizeof(*p), type, flags);
    492 	if (!p)
    493 		return (0);
    494 	error = esa_allocmem(sc, size, 16, p);
    495 	if (error) {
    496 		free(p, type);
    497 		printf("%s: esa_malloc: not enough memory\n",
    498 		    sc->sc_dev.dv_xname);
    499 		return (0);
    500 	}
    501 	p->next = vc->dma;
    502 	vc->dma = p;
    503 
    504 	return (KERNADDR(p));
    505 }
    506 
    507 void
    508 esa_free(void *hdl, void *addr, struct malloc_type *type)
    509 {
    510 	struct esa_voice *vc = hdl;
    511 	struct esa_softc *sc = (struct esa_softc *)vc->parent;
    512 	struct esa_dma *p;
    513 	struct esa_dma **pp;
    514 
    515 	for (pp = &vc->dma; (p = *pp) != NULL; pp = &p->next)
    516 		if (KERNADDR(p) == addr) {
    517 			esa_freemem(sc, p);
    518 			*pp = p->next;
    519 			free(p, type);
    520 			return;
    521 		}
    522 }
    523 
    524 int
    525 esa_getdev(void *hdl, struct audio_device *ret)
    526 {
    527 
    528 	*ret = esa_device;
    529 
    530 	return (0);
    531 }
    532 
    533 int
    534 esa_set_port(void *hdl, mixer_ctrl_t *mc)
    535 {
    536 	struct esa_voice *vc = hdl;
    537 	struct esa_softc *sc = (struct esa_softc *)vc->parent;
    538 
    539 	return (sc->codec_if->vtbl->mixer_set_port(sc->codec_if, mc));
    540 }
    541 
    542 int
    543 esa_get_port(void *hdl, mixer_ctrl_t *mc)
    544 {
    545 	struct esa_voice *vc = hdl;
    546 	struct esa_softc *sc = (struct esa_softc *)vc->parent;
    547 
    548 	return (sc->codec_if->vtbl->mixer_get_port(sc->codec_if, mc));
    549 }
    550 
    551 int
    552 esa_query_devinfo(void *hdl, mixer_devinfo_t *di)
    553 {
    554 	struct esa_voice *vc = hdl;
    555 	struct esa_softc *sc = (struct esa_softc *)vc->parent;
    556 
    557 	return (sc->codec_if->vtbl->query_devinfo(sc->codec_if, di));
    558 }
    559 
    560 size_t
    561 esa_round_buffersize(void *hdl, int direction, size_t bufsize)
    562 {
    563 	struct esa_voice *vc = hdl;
    564 
    565 	/*
    566 	 * We must be able to do better than this...
    567 	 */
    568 	vc->play.bufsize = vc->rec.bufsize = 65536;
    569 
    570 	return (vc->play.bufsize);
    571 }
    572 
    573 int
    574 esa_get_props(void *hdl)
    575 {
    576 
    577 	return (AUDIO_PROP_MMAP | AUDIO_PROP_INDEPENDENT | AUDIO_PROP_FULLDUPLEX);
    578 }
    579 
    580 int
    581 esa_trigger_output(void *hdl, void *start, void *end, int blksize,
    582 			void (*intr)(void *), void *intrarg,
    583 			struct audio_params *param)
    584 {
    585 	struct esa_voice *vc = hdl;
    586 	struct esa_softc *sc = (struct esa_softc *)vc->parent;
    587 	struct esa_dma *p;
    588 	bus_space_tag_t iot = sc->sc_iot;
    589 	bus_space_handle_t ioh = sc->sc_ioh;
    590 	u_int32_t data;
    591 	u_int32_t bufaddr;
    592 	u_int32_t i;
    593 	size_t size;
    594 
    595 	int data_bytes = (((ESA_MINISRC_TMP_BUFFER_SIZE & ~1) +
    596 			   (ESA_MINISRC_IN_BUFFER_SIZE & ~1) +
    597 			   (ESA_MINISRC_OUT_BUFFER_SIZE & ~1) + 4) + 255)
    598 			   &~ 255;
    599 	int dac_data = ESA_DAC_DATA + (data_bytes * vc->index);
    600 	int dsp_in_size = ESA_MINISRC_IN_BUFFER_SIZE - (0x20 * 2);
    601 	int dsp_out_size = ESA_MINISRC_OUT_BUFFER_SIZE - (0x20 * 2);
    602 	int dsp_in_buf = dac_data + (ESA_MINISRC_TMP_BUFFER_SIZE / 2);
    603 	int dsp_out_buf = dsp_in_buf + (dsp_in_size / 2) + 1;
    604 
    605 	if (vc->play.active)
    606 		return (EINVAL);
    607 
    608 	for (p = vc->dma; p && KERNADDR(p) != start; p = p->next)
    609 		;
    610 	if (!p) {
    611 		printf("%s: esa_trigger_output: bad addr %p\n",
    612 		    sc->sc_dev.dv_xname, start);
    613 		return (EINVAL);
    614 	}
    615 
    616 	vc->play.active = 1;
    617 	vc->play.intr = intr;
    618 	vc->play.arg = intrarg;
    619 	vc->play.pos = 0;
    620 	vc->play.count = 0;
    621 	vc->play.buf = start;
    622 	size = (size_t)(((caddr_t)end - (caddr_t)start));
    623 	bufaddr = DMAADDR(p);
    624 	vc->play.start = bufaddr;
    625 
    626 #define LO(x) ((x) & 0x0000ffff)
    627 #define HI(x) ((x) >> 16)
    628 
    629 	esa_write_assp(sc, ESA_MEMTYPE_INTERNAL_DATA, dac_data +
    630 	    ESA_CDATA_HOST_SRC_ADDRL, LO(bufaddr));
    631 	esa_write_assp(sc, ESA_MEMTYPE_INTERNAL_DATA, dac_data +
    632 	    ESA_CDATA_HOST_SRC_ADDRH, HI(bufaddr));
    633 	esa_write_assp(sc, ESA_MEMTYPE_INTERNAL_DATA, dac_data +
    634 	    ESA_CDATA_HOST_SRC_END_PLUS_1L, LO(bufaddr + size));
    635 	esa_write_assp(sc, ESA_MEMTYPE_INTERNAL_DATA, dac_data +
    636 	    ESA_CDATA_HOST_SRC_END_PLUS_1H, HI(bufaddr + size));
    637 	esa_write_assp(sc, ESA_MEMTYPE_INTERNAL_DATA, dac_data +
    638 	    ESA_CDATA_HOST_SRC_CURRENTL, LO(bufaddr));
    639 	esa_write_assp(sc, ESA_MEMTYPE_INTERNAL_DATA, dac_data +
    640 	    ESA_CDATA_HOST_SRC_CURRENTH, HI(bufaddr));
    641 
    642 	/* DSP buffers */
    643 	esa_write_assp(sc, ESA_MEMTYPE_INTERNAL_DATA, dac_data +
    644 	    ESA_CDATA_IN_BUF_BEGIN, dsp_in_buf);
    645 	esa_write_assp(sc, ESA_MEMTYPE_INTERNAL_DATA, dac_data +
    646 	    ESA_CDATA_IN_BUF_END_PLUS_1, dsp_in_buf + (dsp_in_size / 2));
    647 	esa_write_assp(sc, ESA_MEMTYPE_INTERNAL_DATA, dac_data +
    648 	    ESA_CDATA_IN_BUF_HEAD, dsp_in_buf);
    649 	esa_write_assp(sc, ESA_MEMTYPE_INTERNAL_DATA, dac_data +
    650 	    ESA_CDATA_IN_BUF_TAIL, dsp_in_buf);
    651 	esa_write_assp(sc, ESA_MEMTYPE_INTERNAL_DATA, dac_data +
    652 	    ESA_CDATA_OUT_BUF_BEGIN, dsp_out_buf);
    653 	esa_write_assp(sc, ESA_MEMTYPE_INTERNAL_DATA, dac_data +
    654 	    ESA_CDATA_OUT_BUF_END_PLUS_1, dsp_out_buf + (dsp_out_size / 2));
    655 	esa_write_assp(sc, ESA_MEMTYPE_INTERNAL_DATA, dac_data +
    656 	    ESA_CDATA_OUT_BUF_HEAD, dsp_out_buf);
    657 	esa_write_assp(sc, ESA_MEMTYPE_INTERNAL_DATA, dac_data +
    658 	    ESA_CDATA_OUT_BUF_TAIL, dsp_out_buf);
    659 
    660 	/* Some per-client initializers */
    661 	esa_write_assp(sc, ESA_MEMTYPE_INTERNAL_DATA, dac_data +
    662 	    ESA_SRC3_DIRECTION_OFFSET + 12, dac_data + 40 + 8);
    663 	esa_write_assp(sc, ESA_MEMTYPE_INTERNAL_DATA, dac_data +
    664 	    ESA_SRC3_DIRECTION_OFFSET + 19, 0x400 + ESA_MINISRC_COEF_LOC);
    665 	/* Enable or disable low-pass filter? (0xff if rate > 45000) */
    666 	esa_write_assp(sc, ESA_MEMTYPE_INTERNAL_DATA, dac_data +
    667 	    ESA_SRC3_DIRECTION_OFFSET + 22,
    668 	    vc->play.mode.sample_rate > 45000 ? 0xff : 0);
    669 	/* Tell it which way DMA is going */
    670 	esa_write_assp(sc, ESA_MEMTYPE_INTERNAL_DATA, dac_data +
    671 	    ESA_CDATA_DMA_CONTROL,
    672 	    ESA_DMACONTROL_AUTOREPEAT + ESA_DMAC_PAGE3_SELECTOR +
    673 	    ESA_DMAC_BLOCKF_SELECTOR);
    674 
    675 	/* Set an armload of static initializers */
    676 	for (i = 0; i < (sizeof(esa_playvals) / sizeof(esa_playvals[0])); i++)
    677 		esa_write_assp(sc, ESA_MEMTYPE_INTERNAL_DATA, dac_data +
    678 		    esa_playvals[i].addr, esa_playvals[i].val);
    679 
    680 	/* Put us in the packed task lists */
    681 	esa_add_list(vc, &sc->msrc_list, dac_data >> ESA_DP_SHIFT_COUNT,
    682 		     vc->index);
    683 	esa_add_list(vc, &sc->dma_list, dac_data >> ESA_DP_SHIFT_COUNT,
    684 		     vc->index);
    685 	esa_add_list(vc, &sc->mixer_list, dac_data >> ESA_DP_SHIFT_COUNT,
    686 		     vc->index);
    687 #undef LO
    688 #undef HI
    689 
    690 	/* XXX */
    691 	//esa_commit_settings(vc);
    692 
    693 	sc->sc_ntimers++;
    694 
    695 	if (sc->sc_ntimers == 1) {
    696 		esa_write_assp(sc, ESA_MEMTYPE_INTERNAL_DATA,
    697 		    ESA_KDATA_TIMER_COUNT_RELOAD, 240);
    698 		esa_write_assp(sc, ESA_MEMTYPE_INTERNAL_DATA,
    699 		    ESA_KDATA_TIMER_COUNT_CURRENT, 240);
    700 		data = bus_space_read_2(iot, ioh, ESA_HOST_INT_CTRL);
    701 		bus_space_write_2(iot, ioh, ESA_HOST_INT_CTRL,
    702 		    data | ESA_CLKRUN_GEN_ENABLE);
    703 	}
    704 
    705 	esa_write_assp(sc, ESA_MEMTYPE_INTERNAL_DATA, dac_data +
    706 	    ESA_CDATA_INSTANCE_READY, 1);
    707 	esa_write_assp(sc, ESA_MEMTYPE_INTERNAL_DATA,
    708 	    ESA_KDATA_MIXER_TASK_NUMBER,
    709 	    sc->mixer_list.indexmap[vc->index]);
    710 
    711 	return (0);
    712 }
    713 
    714 int
    715 esa_trigger_input(void *hdl, void *start, void *end, int blksize,
    716 			void (*intr)(void *), void *intrarg,
    717 			struct audio_params *param)
    718 {
    719 	struct esa_voice *vc = hdl;
    720 	struct esa_softc *sc = (struct esa_softc *)vc->parent;
    721 	struct esa_dma *p;
    722 	bus_space_tag_t iot = sc->sc_iot;
    723 	bus_space_handle_t ioh = sc->sc_ioh;
    724 	u_int32_t data;
    725 	u_int32_t bufaddr;
    726 	u_int32_t i;
    727 	size_t size;
    728 	int data_bytes = (((ESA_MINISRC_TMP_BUFFER_SIZE & ~1) +
    729 			   (ESA_MINISRC_IN_BUFFER_SIZE & ~1) +
    730 			   (ESA_MINISRC_OUT_BUFFER_SIZE & ~1) + 4) + 255)
    731 			   &~ 255;
    732 	int adc_data = ESA_DAC_DATA + (data_bytes * vc->index) +
    733 		       (data_bytes / 2);
    734 	int dsp_in_size = ESA_MINISRC_IN_BUFFER_SIZE - (0x10 * 2);
    735 	int dsp_out_size = ESA_MINISRC_OUT_BUFFER_SIZE - (0x10 * 2);
    736 	int dsp_in_buf = adc_data + (ESA_MINISRC_TMP_BUFFER_SIZE / 2);
    737 	int dsp_out_buf = dsp_in_buf + (dsp_in_size / 2) + 1;
    738 	vc->rec.data_offset = adc_data;
    739 
    740 	/* We only support 1 recording channel */
    741 	if (vc->index > 0)
    742 		return (ENODEV);
    743 
    744 	if (vc->rec.active)
    745 		return (EINVAL);
    746 
    747 	for (p = vc->dma; p && KERNADDR(p) != start; p = p->next)
    748 		;
    749 	if (!p) {
    750 		printf("%s: esa_trigger_input: bad addr %p\n",
    751 		    sc->sc_dev.dv_xname, start);
    752 		return (EINVAL);
    753 	}
    754 
    755 	vc->rec.active = 1;
    756 	vc->rec.intr = intr;
    757 	vc->rec.arg = intrarg;
    758 	vc->rec.pos = 0;
    759 	vc->rec.count = 0;
    760 	vc->rec.buf = start;
    761 	size = (size_t)(((caddr_t)end - (caddr_t)start));
    762 	bufaddr = DMAADDR(p);
    763 	vc->rec.start = bufaddr;
    764 
    765 #define LO(x) ((x) & 0x0000ffff)
    766 #define HI(x) ((x) >> 16)
    767 
    768 	esa_write_assp(sc, ESA_MEMTYPE_INTERNAL_DATA, adc_data +
    769 	    ESA_CDATA_HOST_SRC_ADDRL, LO(bufaddr));
    770 	esa_write_assp(sc, ESA_MEMTYPE_INTERNAL_DATA, adc_data +
    771 	    ESA_CDATA_HOST_SRC_ADDRH, HI(bufaddr));
    772 	esa_write_assp(sc, ESA_MEMTYPE_INTERNAL_DATA, adc_data +
    773 	    ESA_CDATA_HOST_SRC_END_PLUS_1L, LO(bufaddr + size));
    774 	esa_write_assp(sc, ESA_MEMTYPE_INTERNAL_DATA, adc_data +
    775 	    ESA_CDATA_HOST_SRC_END_PLUS_1H, HI(bufaddr + size));
    776 	esa_write_assp(sc, ESA_MEMTYPE_INTERNAL_DATA, adc_data +
    777 	    ESA_CDATA_HOST_SRC_CURRENTL, LO(bufaddr));
    778 	esa_write_assp(sc, ESA_MEMTYPE_INTERNAL_DATA, adc_data +
    779 	    ESA_CDATA_HOST_SRC_CURRENTH, HI(bufaddr));
    780 
    781 	/* DSP buffers */
    782 	esa_write_assp(sc, ESA_MEMTYPE_INTERNAL_DATA, adc_data +
    783 	    ESA_CDATA_IN_BUF_BEGIN, dsp_in_buf);
    784 	esa_write_assp(sc, ESA_MEMTYPE_INTERNAL_DATA, adc_data +
    785 	    ESA_CDATA_IN_BUF_END_PLUS_1, dsp_in_buf + (dsp_in_size / 2));
    786 	esa_write_assp(sc, ESA_MEMTYPE_INTERNAL_DATA, adc_data +
    787 	    ESA_CDATA_IN_BUF_HEAD, dsp_in_buf);
    788 	esa_write_assp(sc, ESA_MEMTYPE_INTERNAL_DATA, adc_data +
    789 	    ESA_CDATA_IN_BUF_TAIL, dsp_in_buf);
    790 	esa_write_assp(sc, ESA_MEMTYPE_INTERNAL_DATA, adc_data +
    791 	    ESA_CDATA_OUT_BUF_BEGIN, dsp_out_buf);
    792 	esa_write_assp(sc, ESA_MEMTYPE_INTERNAL_DATA, adc_data +
    793 	    ESA_CDATA_OUT_BUF_END_PLUS_1, dsp_out_buf + (dsp_out_size / 2));
    794 	esa_write_assp(sc, ESA_MEMTYPE_INTERNAL_DATA, adc_data +
    795 	    ESA_CDATA_OUT_BUF_HEAD, dsp_out_buf);
    796 	esa_write_assp(sc, ESA_MEMTYPE_INTERNAL_DATA, adc_data +
    797 	    ESA_CDATA_OUT_BUF_TAIL, dsp_out_buf);
    798 
    799 	/* Some per-client initializers */
    800 	esa_write_assp(sc, ESA_MEMTYPE_INTERNAL_DATA, adc_data +
    801 	    ESA_SRC3_DIRECTION_OFFSET + 12, adc_data + 40 + 8);
    802 	/* Tell it which way DMA is going */
    803 	esa_write_assp(sc, ESA_MEMTYPE_INTERNAL_DATA, adc_data +
    804 	    ESA_CDATA_DMA_CONTROL,
    805 	    ESA_DMACONTROL_DIRECTION + ESA_DMACONTROL_AUTOREPEAT +
    806 	    ESA_DMAC_PAGE3_SELECTOR + ESA_DMAC_BLOCKF_SELECTOR);
    807 
    808 	/* Set an armload of static initializers */
    809 	for (i = 0; i < (sizeof(esa_recvals) / sizeof(esa_recvals[0])); i++)
    810 		esa_write_assp(sc, ESA_MEMTYPE_INTERNAL_DATA, adc_data +
    811 		    esa_recvals[i].addr, esa_recvals[i].val);
    812 
    813 	/* Put us in the packed task lists */
    814 	esa_add_list(vc, &sc->adc1_list, adc_data >> ESA_DP_SHIFT_COUNT,
    815 		     vc->index + ESA_NUM_VOICES);
    816 	esa_add_list(vc, &sc->msrc_list, adc_data >> ESA_DP_SHIFT_COUNT,
    817 		     vc->index + ESA_NUM_VOICES);
    818 	esa_add_list(vc, &sc->dma_list, adc_data >> ESA_DP_SHIFT_COUNT,
    819 		     vc->index + ESA_NUM_VOICES);
    820 #undef LO
    821 #undef HI
    822 
    823 	/* XXX */
    824 	//esa_commit_settings(vc);
    825 
    826 	sc->sc_ntimers++;
    827 	if (sc->sc_ntimers == 1) {
    828 		esa_write_assp(sc, ESA_MEMTYPE_INTERNAL_DATA,
    829 		    ESA_KDATA_TIMER_COUNT_RELOAD, 240);
    830 		esa_write_assp(sc, ESA_MEMTYPE_INTERNAL_DATA,
    831 		    ESA_KDATA_TIMER_COUNT_CURRENT, 240);
    832 		data = bus_space_read_2(iot, ioh, ESA_HOST_INT_CTRL);
    833 		bus_space_write_2(iot, ioh, ESA_HOST_INT_CTRL,
    834 		    data | ESA_CLKRUN_GEN_ENABLE);
    835 	}
    836 
    837 	esa_write_assp(sc, ESA_MEMTYPE_INTERNAL_DATA, adc_data +
    838 	    ESA_CDATA_INSTANCE_READY, 1);
    839 	esa_write_assp(sc, ESA_MEMTYPE_INTERNAL_DATA, ESA_KDATA_ADC1_REQUEST,
    840 	    1);
    841 
    842 	return (0);
    843 }
    844 
    845 /* Interrupt handler */
    846 
    847 int
    848 esa_intr(void *hdl)
    849 {
    850 	struct esa_softc *sc = hdl;
    851 	struct esa_voice *vc;
    852 	bus_space_tag_t iot = sc->sc_iot;
    853 	bus_space_handle_t ioh = sc->sc_ioh;
    854 	u_int8_t status, ctl;
    855 	u_int32_t pos;
    856 	u_int32_t diff;
    857 	u_int32_t play_blksize, play_bufsize;
    858 	u_int32_t rec_blksize, rec_bufsize;
    859 	int i;
    860 
    861 	status = bus_space_read_1(iot, ioh, ESA_HOST_INT_STATUS);
    862 	if (status == 0xff)
    863 		return (0);
    864 
    865 	/* ack the interrupt */
    866 	bus_space_write_1(iot, ioh, ESA_HOST_INT_STATUS, status);
    867 
    868 	if (status & ESA_HV_INT_PENDING) {
    869 		u_int8_t event;
    870 
    871 		printf("%s: hardware volume interrupt\n", sc->sc_dev.dv_xname);
    872 		event = bus_space_read_1(iot, ioh, ESA_HW_VOL_COUNTER_MASTER);
    873 		switch(event) {
    874 		case 0x99:
    875 		case 0xaa:
    876 		case 0x66:
    877 		case 0x88:
    878 			printf("%s: esa_intr: FIXME\n", sc->sc_dev.dv_xname);
    879 			break;
    880 		default:
    881 			printf("%s: unknown hwvol event 0x%02x\n",
    882 			    sc->sc_dev.dv_xname, event);
    883 			break;
    884 		}
    885 		bus_space_write_1(iot, ioh, ESA_HW_VOL_COUNTER_MASTER, 0x88);
    886 	}
    887 
    888 	if (status & ESA_ASSP_INT_PENDING) {
    889 		ctl = bus_space_read_1(iot, ioh, ESA_ASSP_CONTROL_B);
    890 		if (!(ctl & ESA_STOP_ASSP_CLOCK)) {
    891 			ctl = bus_space_read_1(iot, ioh,
    892 					       ESA_ASSP_HOST_INT_STATUS);
    893 			if (ctl & ESA_DSP2HOST_REQ_TIMER) {
    894 				bus_space_write_1(iot, ioh,
    895 				    ESA_ASSP_HOST_INT_STATUS,
    896 				    ESA_DSP2HOST_REQ_TIMER);
    897 				for (i = 0; i < ESA_NUM_VOICES; i++) {
    898 					vc = &sc->voice[i];
    899 					if (vc->play.active) {
    900 						play_blksize = vc->play.blksize;
    901 						play_bufsize = vc->play.bufsize;
    902 						pos = esa_get_pointer(sc, &vc->play)
    903 						    % play_bufsize;
    904 						diff = (play_bufsize + pos - vc->play.pos)
    905 						    % play_bufsize;
    906 						vc->play.pos = pos;
    907 						vc->play.count += diff;
    908 						while(vc->play.count >= play_blksize) {
    909 							vc->play.count -= play_blksize;
    910 							(*vc->play.intr)(vc->play.arg);
    911 						}
    912 					}
    913 					if (vc->rec.active) {
    914 						rec_blksize = vc->rec.blksize;
    915 						rec_bufsize = vc->rec.bufsize;
    916 						pos = esa_get_pointer(sc, &vc->rec)
    917 						    % rec_bufsize;
    918 						diff = (rec_bufsize + pos - vc->rec.pos)
    919 						    % rec_bufsize;
    920 						vc->rec.pos = pos;
    921 						vc->rec.count += diff;
    922 						while(vc->rec.count >= rec_blksize) {
    923 							vc->rec.count -= rec_blksize;
    924 							(*vc->rec.intr)(vc->rec.arg);
    925 						}
    926 					}
    927 				}
    928 			}
    929 		}
    930 	}
    931 
    932 	return (1);
    933 }
    934 
    935 int
    936 esa_allocmem(struct esa_softc *sc, size_t size, size_t align,
    937 		struct esa_dma *p)
    938 {
    939 	int error;
    940 
    941 	p->size = size;
    942 	error = bus_dmamem_alloc(sc->sc_dmat, p->size, align, 0,
    943 				 p->segs, sizeof(p->segs) / sizeof(p->segs[0]),
    944 				 &p->nsegs, BUS_DMA_NOWAIT);
    945 	if (error)
    946 		return (error);
    947 
    948 	error = bus_dmamem_map(sc->sc_dmat, p->segs, p->nsegs, p->size,
    949 				&p->addr, BUS_DMA_NOWAIT | BUS_DMA_COHERENT);
    950 	if (error)
    951 		goto free;
    952 
    953 	error = bus_dmamap_create(sc->sc_dmat, p->size, 1, p->size, 0,
    954 				  BUS_DMA_NOWAIT, &p->map);
    955 	if (error)
    956 		goto unmap;
    957 
    958 	error = bus_dmamap_load(sc->sc_dmat, p->map, p->addr, p->size, NULL,
    959 				BUS_DMA_NOWAIT);
    960 	if (error)
    961 		goto destroy;
    962 
    963 	return (0);
    964 
    965 destroy:
    966 	bus_dmamap_destroy(sc->sc_dmat, p->map);
    967 unmap:
    968 	bus_dmamem_unmap(sc->sc_dmat, p->addr, p->size);
    969 free:
    970 	bus_dmamem_free(sc->sc_dmat, p->segs, p->nsegs);
    971 
    972 	return (error);
    973 }
    974 
    975 int
    976 esa_freemem(struct esa_softc *sc, struct esa_dma *p)
    977 {
    978 
    979 	bus_dmamap_unload(sc->sc_dmat, p->map);
    980 	bus_dmamap_destroy(sc->sc_dmat, p->map);
    981 	bus_dmamem_unmap(sc->sc_dmat, p->addr, p->size);
    982 	bus_dmamem_free(sc->sc_dmat, p->segs, p->nsegs);
    983 
    984 	return (0);
    985 }
    986 
    987 /*
    988  * Supporting Subroutines
    989  */
    990 
    991 int
    992 esa_match(struct device *dev, struct cfdata *match, void *aux)
    993 {
    994 	struct pci_attach_args *pa = (struct pci_attach_args *)aux;
    995 
    996 	switch(PCI_VENDOR(pa->pa_id)) {
    997 	case PCI_VENDOR_ESSTECH:
    998 		switch(PCI_PRODUCT(pa->pa_id)) {
    999 		case PCI_PRODUCT_ESSTECH_ALLEGRO1:
   1000 		case PCI_PRODUCT_ESSTECH_MAESTRO3:
   1001 		case PCI_PRODUCT_ESSTECH_MAESTRO3_2:
   1002 			return (1);
   1003 		}
   1004 	}
   1005 
   1006 	return (0);
   1007 }
   1008 
   1009 void
   1010 esa_attach(struct device *parent, struct device *self, void *aux)
   1011 {
   1012 	struct esa_softc *sc = (struct esa_softc *)self;
   1013 	struct pci_attach_args *pa = (struct pci_attach_args *)aux;
   1014 	pcitag_t tag = pa->pa_tag;
   1015 	pci_chipset_tag_t pc = pa->pa_pc;
   1016 	pci_intr_handle_t ih;
   1017 	struct esa_card_type *card;
   1018 	const char *intrstr;
   1019 	u_int32_t data;
   1020 	char devinfo[256];
   1021 	int revision, len;
   1022 	int i;
   1023 
   1024 	aprint_naive(": Audio controller\n");
   1025 
   1026 	pci_devinfo(pa->pa_id, pa->pa_class, 0, devinfo);
   1027 	revision = PCI_REVISION(pa->pa_class);
   1028 	aprint_normal(": %s (rev. 0x%02x)\n", devinfo, revision);
   1029 
   1030 	for (card = esa_card_types; card->pci_vendor_id; card++)
   1031 		if (PCI_VENDOR(pa->pa_id) == card->pci_vendor_id &&
   1032 		    PCI_PRODUCT(pa->pa_id) == card->pci_product_id) {
   1033 			sc->type = card->type;
   1034 			sc->delay1 = card->delay1;
   1035 			sc->delay2 = card->delay2;
   1036 			break;
   1037 		}
   1038 
   1039 	data = pci_conf_read(pc, tag, PCI_COMMAND_STATUS_REG);
   1040 	data |= (PCI_COMMAND_IO_ENABLE | PCI_COMMAND_MEM_ENABLE
   1041 	    | PCI_COMMAND_MASTER_ENABLE);
   1042 	pci_conf_write(pc, tag, PCI_COMMAND_STATUS_REG, data);
   1043 
   1044 	/* Map I/O register */
   1045 	if (pci_mapreg_map(pa, PCI_CBIO, PCI_MAPREG_TYPE_IO, 0,
   1046 	    &sc->sc_iot, &sc->sc_ioh, &sc->sc_iob, &sc->sc_ios)) {
   1047 		aprint_error("%s: can't map i/o space\n", sc->sc_dev.dv_xname);
   1048 		return;
   1049 	}
   1050 
   1051 	/* Initialize softc */
   1052 	sc->sc_tag = tag;
   1053 	sc->sc_pct = pc;
   1054 	sc->sc_dmat = pa->pa_dmat;
   1055 
   1056 	/* Map and establish an interrupt */
   1057 	if (pci_intr_map(pa, &ih)) {
   1058 		aprint_error("%s: can't map interrupt\n", sc->sc_dev.dv_xname);
   1059 		return;
   1060 	}
   1061 	intrstr = pci_intr_string(pc, ih);
   1062 	sc->sc_ih = pci_intr_establish(pc, ih, IPL_AUDIO, esa_intr, self);
   1063 	if (sc->sc_ih == NULL) {
   1064 		aprint_error("%s: can't establish interrupt",
   1065 		    sc->sc_dev.dv_xname);
   1066 		if (intrstr != NULL)
   1067 			aprint_normal(" at %s", intrstr);
   1068 		aprint_normal("\n");
   1069 		return;
   1070 	}
   1071 	aprint_normal("%s: interrupting at %s\n", sc->sc_dev.dv_xname, intrstr);
   1072 
   1073 	/* Power up chip */
   1074 	esa_power(sc, PCI_PMCSR_STATE_D0);
   1075 
   1076 	/* Init chip */
   1077 	if (esa_init(sc) == -1) {
   1078 		aprint_error("%s: esa_attach: unable to initialize the card\n",
   1079 		    sc->sc_dev.dv_xname);
   1080 		return;
   1081 	}
   1082 
   1083 	/* create suspend save area */
   1084 	len = sizeof(u_int16_t) * (ESA_REV_B_CODE_MEMORY_LENGTH
   1085 	    + ESA_REV_B_DATA_MEMORY_LENGTH + 1);
   1086 	sc->savemem = (u_int16_t *)malloc(len, M_DEVBUF, M_NOWAIT | M_ZERO);
   1087 	if (sc->savemem == NULL) {
   1088 		aprint_error("%s: unable to allocate suspend buffer\n",
   1089 		    sc->sc_dev.dv_xname);
   1090 		return;
   1091 	}
   1092 
   1093 	/*
   1094 	 * Every card I've seen has had their channels swapped with respect
   1095 	 * to the mixer. Ie:
   1096 	 *  $ mixerctl -w outputs.master=0,191
   1097 	 * Would result in the _right_ speaker being turned off.
   1098 	 *
   1099 	 * So, we will swap the left and right mixer channels to compensate
   1100 	 * for this.
   1101 	 */
   1102 	sc->codec_flags = AC97_HOST_SWAPPED_CHANNELS;
   1103 
   1104 	/* Attach AC97 host interface */
   1105 	sc->host_if.arg = self;
   1106 	sc->host_if.attach = esa_attach_codec;
   1107 	sc->host_if.read = esa_read_codec;
   1108 	sc->host_if.write = esa_write_codec;
   1109 	sc->host_if.reset = esa_reset_codec;
   1110 	sc->host_if.flags = esa_flags_codec;
   1111 
   1112 	if (ac97_attach(&sc->host_if) != 0)
   1113 		return;
   1114 
   1115 	/* initialize list management structures */
   1116 	sc->mixer_list.mem_addr = ESA_KDATA_MIXER_XFER0;
   1117 	sc->mixer_list.max = ESA_MAX_VIRTUAL_MIXER_CHANNELS;
   1118 	sc->adc1_list.mem_addr = ESA_KDATA_ADC1_XFER0;
   1119 	sc->adc1_list.max = ESA_MAX_VIRTUAL_ADC1_CHANNELS;
   1120 	sc->dma_list.mem_addr = ESA_KDATA_DMA_XFER0;
   1121 	sc->dma_list.max = ESA_MAX_VIRTUAL_DMA_CHANNELS;
   1122 	sc->msrc_list.mem_addr = ESA_KDATA_INSTANCE0_MINISRC;
   1123 	sc->msrc_list.max = ESA_MAX_INSTANCE_MINISRC;
   1124 
   1125 	/* initialize index maps */
   1126 	for (i = 0; i < ESA_NUM_VOICES * 2; i++) {
   1127 		sc->mixer_list.indexmap[i] = -1;
   1128 		sc->msrc_list.indexmap[i] = -1;
   1129 		sc->dma_list.indexmap[i] = -1;
   1130 		sc->adc1_list.indexmap[i] = -1;
   1131 	}
   1132 	for (i = 0; i < ESA_NUM_VOICES; i++) {
   1133 		sc->voice[i].parent = (struct device *)sc;
   1134 		sc->voice[i].index = i;
   1135 		sc->sc_audiodev[i] =
   1136 		    audio_attach_mi(&esa_hw_if, &sc->voice[i], &sc->sc_dev);
   1137 	}
   1138 
   1139 	sc->powerhook = powerhook_establish(esa_powerhook, sc);
   1140 	if (sc->powerhook == NULL)
   1141 		aprint_error("%s: WARNING: unable to establish powerhook\n",
   1142 		    sc->sc_dev.dv_xname);
   1143 
   1144 	return;
   1145 }
   1146 
   1147 int
   1148 esa_detach(struct device *self, int flags)
   1149 {
   1150 	struct esa_softc *sc = (struct esa_softc *)self;
   1151 	int i;
   1152 
   1153 	for (i = 0; i < ESA_NUM_VOICES; i++) {
   1154 		if (sc->sc_audiodev[i] != NULL)
   1155 			config_detach(sc->sc_audiodev[i], flags);
   1156 	}
   1157 
   1158 	if (sc->sc_ih != NULL)
   1159 		pci_intr_disestablish(sc->sc_pct, sc->sc_ih);
   1160 	if (sc->sc_ios)
   1161 		bus_space_unmap(sc->sc_iot, sc->sc_ioh, sc->sc_ios);
   1162 
   1163 	free(sc->savemem, M_DEVBUF);
   1164 
   1165 	return (0);
   1166 }
   1167 
   1168 u_int16_t
   1169 esa_read_assp(struct esa_softc *sc, u_int16_t region, u_int16_t index)
   1170 {
   1171 	u_int16_t data;
   1172 	bus_space_tag_t iot = sc->sc_iot;
   1173 	bus_space_handle_t ioh = sc->sc_ioh;
   1174 
   1175 	bus_space_write_2(iot, ioh, ESA_DSP_PORT_MEMORY_TYPE,
   1176 	    region & ESA_MEMTYPE_MASK);
   1177 	bus_space_write_2(iot, ioh, ESA_DSP_PORT_MEMORY_INDEX, index);
   1178 	data = bus_space_read_2(iot, ioh, ESA_DSP_PORT_MEMORY_DATA);
   1179 
   1180 	return (data);
   1181 }
   1182 
   1183 void
   1184 esa_write_assp(struct esa_softc *sc, u_int16_t region, u_int16_t index,
   1185 		u_int16_t data)
   1186 {
   1187 	bus_space_tag_t iot = sc->sc_iot;
   1188 	bus_space_handle_t ioh = sc->sc_ioh;
   1189 
   1190 	bus_space_write_2(iot, ioh, ESA_DSP_PORT_MEMORY_TYPE,
   1191 	    region & ESA_MEMTYPE_MASK);
   1192 	bus_space_write_2(iot, ioh, ESA_DSP_PORT_MEMORY_INDEX, index);
   1193 	bus_space_write_2(iot, ioh, ESA_DSP_PORT_MEMORY_DATA, data);
   1194 
   1195 	return;
   1196 }
   1197 
   1198 int
   1199 esa_init_codec(struct esa_softc *sc)
   1200 {
   1201 	bus_space_tag_t iot = sc->sc_iot;
   1202 	bus_space_handle_t ioh = sc->sc_ioh;
   1203 	u_int32_t data;
   1204 
   1205 	data = bus_space_read_1(iot, ioh, ESA_CODEC_COMMAND);
   1206 
   1207 	return ((data & 0x1) ? 0 : 1);
   1208 }
   1209 
   1210 int
   1211 esa_attach_codec(void *aux, struct ac97_codec_if *codec_if)
   1212 {
   1213 	struct esa_softc *sc = aux;
   1214 
   1215 	sc->codec_if = codec_if;
   1216 
   1217 	return (0);
   1218 }
   1219 
   1220 int
   1221 esa_read_codec(void *aux, u_int8_t reg, u_int16_t *result)
   1222 {
   1223 	struct esa_softc *sc = aux;
   1224 	bus_space_tag_t iot = sc->sc_iot;
   1225 	bus_space_handle_t ioh = sc->sc_ioh;
   1226 
   1227 	if (esa_wait(sc))
   1228 		printf("%s: esa_read_codec: timed out\n", sc->sc_dev.dv_xname);
   1229 	bus_space_write_1(iot, ioh, ESA_CODEC_COMMAND, (reg & 0x7f) | 0x80);
   1230 	delay(50);
   1231 	if (esa_wait(sc))
   1232 		printf("%s: esa_read_codec: timed out\n", sc->sc_dev.dv_xname);
   1233 	*result = bus_space_read_2(iot, ioh, ESA_CODEC_DATA);
   1234 
   1235 	return (0);
   1236 }
   1237 
   1238 int
   1239 esa_write_codec(void *aux, u_int8_t reg, u_int16_t data)
   1240 {
   1241 	struct esa_softc *sc = aux;
   1242 	bus_space_tag_t iot = sc->sc_iot;
   1243 	bus_space_handle_t ioh = sc->sc_ioh;
   1244 
   1245 	if (esa_wait(sc)) {
   1246 		printf("%s: esa_write_codec: timed out\n", sc->sc_dev.dv_xname);
   1247 		return (-1);
   1248 	}
   1249 	bus_space_write_2(iot, ioh, ESA_CODEC_DATA, data);
   1250 	bus_space_write_1(iot, ioh, ESA_CODEC_COMMAND, reg & 0x7f);
   1251 	delay(50);
   1252 
   1253 	return (0);
   1254 }
   1255 
   1256 void
   1257 esa_reset_codec(void *aux)
   1258 {
   1259 
   1260 	return;
   1261 }
   1262 
   1263 enum ac97_host_flags
   1264 esa_flags_codec(void *aux)
   1265 {
   1266 	struct esa_softc *sc = aux;
   1267 
   1268 	return (sc->codec_flags);
   1269 }
   1270 
   1271 int
   1272 esa_wait(struct esa_softc *sc)
   1273 {
   1274 	int i, val;
   1275 	bus_space_tag_t iot = sc->sc_iot;
   1276 	bus_space_handle_t ioh = sc->sc_ioh;
   1277 
   1278 	for (i = 0; i < 20; i++) {
   1279 		val = bus_space_read_1(iot, ioh, ESA_CODEC_STATUS);
   1280 		if ((val & 1) == 0)
   1281 			return (0);
   1282 		delay(2);
   1283 	}
   1284 
   1285 	return (-1);
   1286 }
   1287 
   1288 int
   1289 esa_init(struct esa_softc *sc)
   1290 {
   1291 	struct esa_voice *vc;
   1292 	bus_space_tag_t iot = sc->sc_iot;
   1293 	bus_space_handle_t ioh = sc->sc_ioh;
   1294 	pcitag_t tag = sc->sc_tag;
   1295 	pci_chipset_tag_t pc = sc->sc_pct;
   1296 	u_int32_t data, i, size;
   1297 	u_int8_t reset_state;
   1298 	int data_bytes = (((ESA_MINISRC_TMP_BUFFER_SIZE & ~1) +
   1299 			   (ESA_MINISRC_IN_BUFFER_SIZE & ~1) +
   1300 			   (ESA_MINISRC_OUT_BUFFER_SIZE & ~1) + 4) + 255)
   1301 			   &~ 255;
   1302 
   1303 	/* Disable legacy emulation */
   1304 	data = pci_conf_read(pc, tag, PCI_LEGACY_AUDIO_CTRL);
   1305 	data |= DISABLE_LEGACY;
   1306 	pci_conf_write(pc, tag, PCI_LEGACY_AUDIO_CTRL, data);
   1307 
   1308 	esa_config(sc);
   1309 
   1310 	reset_state = esa_assp_halt(sc);
   1311 
   1312 	esa_init_codec(sc);
   1313 	esa_codec_reset(sc);
   1314 
   1315 	/* Zero kernel and mixer data */
   1316 	size = ESA_REV_B_DATA_MEMORY_UNIT_LENGTH * ESA_NUM_UNITS_KERNEL_DATA;
   1317 	for (i = 0; i < size / 2; i++) {
   1318 		esa_write_assp(sc, ESA_MEMTYPE_INTERNAL_DATA,
   1319 		    ESA_KDATA_BASE_ADDR + i, 0);
   1320 		esa_write_assp(sc, ESA_MEMTYPE_INTERNAL_DATA,
   1321 		    ESA_KDATA_BASE_ADDR2 + i, 0);
   1322 	}
   1323 
   1324 	/* Init DMA pointer */
   1325 	esa_write_assp(sc, ESA_MEMTYPE_INTERNAL_DATA, ESA_KDATA_CURRENT_DMA,
   1326 	    ESA_KDATA_DMA_XFER0);
   1327 
   1328 	/* Write kernel code into memory */
   1329 	size = sizeof(esa_assp_kernel_image);
   1330 	for (i = 0; i < size / 2; i++)
   1331 		esa_write_assp(sc, ESA_MEMTYPE_INTERNAL_CODE,
   1332 		    ESA_REV_B_CODE_MEMORY_BEGIN + i, esa_assp_kernel_image[i]);
   1333 
   1334 	size = sizeof(esa_assp_minisrc_image);
   1335 	for (i = 0; i < size / 2; i++)
   1336 		esa_write_assp(sc, ESA_MEMTYPE_INTERNAL_CODE, 0x400 + i,
   1337 		    esa_assp_minisrc_image[i]);
   1338 
   1339 	/* Write the coefficients for the low pass filter */
   1340 	size = sizeof(esa_minisrc_lpf_image);
   1341 	for (i = 0; i < size / 2; i++)
   1342 		esa_write_assp(sc, ESA_MEMTYPE_INTERNAL_CODE,
   1343 		    0x400 + ESA_MINISRC_COEF_LOC + i, esa_minisrc_lpf_image[i]);
   1344 	esa_write_assp(sc, ESA_MEMTYPE_INTERNAL_CODE,
   1345 	    0x400 + ESA_MINISRC_COEF_LOC + size, 0x8000);
   1346 	esa_write_assp(sc, ESA_MEMTYPE_INTERNAL_DATA, ESA_KDATA_TASK0, 0x400);
   1347 	/* Init the mixer number */
   1348 	esa_write_assp(sc, ESA_MEMTYPE_INTERNAL_DATA,
   1349              ESA_KDATA_MIXER_TASK_NUMBER, 0);
   1350 	/* Extreme kernel master volume */
   1351 	esa_write_assp(sc, ESA_MEMTYPE_INTERNAL_DATA,
   1352 	    ESA_KDATA_DAC_LEFT_VOLUME, ESA_ARB_VOLUME);
   1353 	esa_write_assp(sc, ESA_MEMTYPE_INTERNAL_DATA,
   1354             ESA_KDATA_DAC_RIGHT_VOLUME, ESA_ARB_VOLUME);
   1355 
   1356 	if (esa_amp_enable(sc))
   1357 		return (-1);
   1358 
   1359 	/* Zero entire DAC/ADC area */
   1360 	for (i = 0x1100; i < 0x1c00; i++)
   1361 		esa_write_assp(sc, ESA_MEMTYPE_INTERNAL_DATA, i, 0);
   1362 
   1363 	/* set some sane defaults */
   1364 	for (i = 0; i < ESA_NUM_VOICES; i++) {
   1365 		vc = &sc->voice[i];
   1366 		vc->play.data_offset = ESA_DAC_DATA + (data_bytes * i);
   1367 		vc->rec.data_offset = ESA_DAC_DATA + (data_bytes * i * 2);
   1368 	}
   1369 
   1370 	esa_enable_interrupts(sc);
   1371 
   1372 	bus_space_write_1(iot, ioh, ESA_DSP_PORT_CONTROL_REG_B,
   1373 	    reset_state | ESA_REGB_ENABLE_RESET);
   1374 
   1375 	return (0);
   1376 }
   1377 
   1378 void
   1379 esa_config(struct esa_softc *sc)
   1380 {
   1381 	bus_space_tag_t iot = sc->sc_iot;
   1382 	bus_space_handle_t ioh = sc->sc_ioh;
   1383 	pcitag_t tag = sc->sc_tag;
   1384 	pci_chipset_tag_t pc = sc->sc_pct;
   1385 	u_int32_t data;
   1386 
   1387 	data = pci_conf_read(pc, tag, ESA_PCI_ALLEGRO_CONFIG);
   1388 	data &= ESA_REDUCED_DEBOUNCE;
   1389 	data |= ESA_PM_CTRL_ENABLE | ESA_CLK_DIV_BY_49 | ESA_USE_PCI_TIMING;
   1390 	pci_conf_write(pc, tag, ESA_PCI_ALLEGRO_CONFIG, data);
   1391 
   1392 	bus_space_write_1(iot, ioh, ESA_ASSP_CONTROL_B, ESA_RESET_ASSP);
   1393 	data = pci_conf_read(pc, tag, ESA_PCI_ALLEGRO_CONFIG);
   1394 	data &= ~ESA_INT_CLK_SELECT;
   1395 	if (sc->type == ESS_MAESTRO3) {
   1396 		data &= ~ESA_INT_CLK_MULT_ENABLE;
   1397 		data |= ESA_INT_CLK_SRC_NOT_PCI;
   1398 	}
   1399 	data &= ~(ESA_CLK_MULT_MODE_SELECT | ESA_CLK_MULT_MODE_SELECT_2);
   1400 	pci_conf_write(pc, tag, ESA_PCI_ALLEGRO_CONFIG, data);
   1401 
   1402 	if (sc->type == ESS_ALLEGRO1) {
   1403 		data = pci_conf_read(pc, tag, ESA_PCI_USER_CONFIG);
   1404 		data |= ESA_IN_CLK_12MHZ_SELECT;
   1405 		pci_conf_write(pc, tag, ESA_PCI_USER_CONFIG, data);
   1406 	}
   1407 
   1408 	data = bus_space_read_1(iot, ioh, ESA_ASSP_CONTROL_A);
   1409 	data &= ~(ESA_DSP_CLK_36MHZ_SELECT | ESA_ASSP_CLK_49MHZ_SELECT);
   1410 	data |= ESA_ASSP_CLK_49MHZ_SELECT;	/* XXX: Assumes 49MHz DSP */
   1411 	data |= ESA_ASSP_0_WS_ENABLE;
   1412 	bus_space_write_1(iot, ioh, ESA_ASSP_CONTROL_A, data);
   1413 
   1414 	bus_space_write_1(iot, ioh, ESA_ASSP_CONTROL_B, ESA_RUN_ASSP);
   1415 
   1416 	return;
   1417 }
   1418 
   1419 u_int8_t
   1420 esa_assp_halt(struct esa_softc *sc)
   1421 {
   1422 	bus_space_tag_t iot = sc->sc_iot;
   1423 	bus_space_handle_t ioh = sc->sc_ioh;
   1424 	u_int8_t data, reset_state;
   1425 
   1426 	data = bus_space_read_1(iot, ioh, ESA_DSP_PORT_CONTROL_REG_B);
   1427 	reset_state = data & ~ESA_REGB_STOP_CLOCK;
   1428 	delay(10000);		/* XXX use tsleep */
   1429 	bus_space_write_1(iot, ioh, ESA_DSP_PORT_CONTROL_REG_B,
   1430 			reset_state & ~ESA_REGB_ENABLE_RESET);
   1431 	delay(10000);		/* XXX use tsleep */
   1432 
   1433 	return (reset_state);
   1434 }
   1435 
   1436 void
   1437 esa_codec_reset(struct esa_softc *sc)
   1438 {
   1439 	bus_space_tag_t iot = sc->sc_iot;
   1440 	bus_space_handle_t ioh = sc->sc_ioh;
   1441 	u_int16_t data, dir;
   1442 	int retry = 0;
   1443 
   1444 	do {
   1445 		data = bus_space_read_2(iot, ioh, ESA_GPIO_DIRECTION);
   1446 		dir = data | 0x10; /* assuming pci bus master? */
   1447 
   1448 		/* remote codec config */
   1449 		data = bus_space_read_2(iot, ioh, ESA_RING_BUS_CTRL_B);
   1450 		bus_space_write_2(iot, ioh, ESA_RING_BUS_CTRL_B,
   1451 		    data & ~ESA_SECOND_CODEC_ID_MASK);
   1452 		data = bus_space_read_2(iot, ioh, ESA_SDO_OUT_DEST_CTRL);
   1453 		bus_space_write_2(iot, ioh, ESA_SDO_OUT_DEST_CTRL,
   1454 		    data & ~ESA_COMMAND_ADDR_OUT);
   1455 		data = bus_space_read_2(iot, ioh, ESA_SDO_IN_DEST_CTRL);
   1456 		bus_space_write_2(iot, ioh, ESA_SDO_IN_DEST_CTRL,
   1457 		    data & ~ESA_STATUS_ADDR_IN);
   1458 
   1459 		bus_space_write_2(iot, ioh, ESA_RING_BUS_CTRL_A,
   1460 				  ESA_IO_SRAM_ENABLE);
   1461 		delay(20);
   1462 
   1463 		bus_space_write_2(iot, ioh, ESA_GPIO_DIRECTION,
   1464 		    dir & ~ESA_GPO_PRIMARY_AC97);
   1465 		bus_space_write_2(iot, ioh, ESA_GPIO_MASK,
   1466 				  ~ESA_GPO_PRIMARY_AC97);
   1467 		bus_space_write_2(iot, ioh, ESA_GPIO_DATA, 0);
   1468 		bus_space_write_2(iot, ioh, ESA_GPIO_DIRECTION,
   1469 		    dir | ESA_GPO_PRIMARY_AC97);
   1470 		delay(sc->delay1 * 1000);
   1471 		bus_space_write_2(iot, ioh, ESA_GPIO_DATA,
   1472 				  ESA_GPO_PRIMARY_AC97);
   1473 		delay(5);
   1474 		bus_space_write_2(iot, ioh, ESA_RING_BUS_CTRL_A,
   1475 		    ESA_IO_SRAM_ENABLE | ESA_SERIAL_AC_LINK_ENABLE);
   1476 		bus_space_write_2(iot, ioh, ESA_GPIO_MASK, ~0);
   1477 		delay(sc->delay2 * 1000);
   1478 
   1479 		esa_read_codec(sc, 0x7c, &data);
   1480 		if ((data == 0) || (data == 0xffff)) {
   1481 			retry++;
   1482 			if (retry > 3) {
   1483 				printf("%s: esa_codec_reset: failed\n",
   1484 				    sc->sc_dev.dv_xname);
   1485 				break;
   1486 			}
   1487 			printf("%s: esa_codec_reset: retrying\n",
   1488 			    sc->sc_dev.dv_xname);
   1489 		} else
   1490 			retry = 0;
   1491 	} while (retry);
   1492 
   1493 	return;
   1494 }
   1495 
   1496 int
   1497 esa_amp_enable(struct esa_softc *sc)
   1498 {
   1499 	bus_space_tag_t iot = sc->sc_iot;
   1500 	bus_space_handle_t ioh = sc->sc_ioh;
   1501 	u_int32_t gpo, polarity_port, polarity;
   1502 	u_int16_t data;
   1503 
   1504 	switch (sc->type) {
   1505 	case ESS_ALLEGRO1:
   1506 		polarity_port = 0x1800;
   1507 		break;
   1508 	case ESS_MAESTRO3:
   1509 		polarity_port = 0x1100;
   1510 		break;
   1511 	default:
   1512 		printf("%s: esa_amp_enable: Unknown chip type!!!\n",
   1513 		    sc->sc_dev.dv_xname);
   1514 		return (1);
   1515 	}
   1516 
   1517 	gpo = (polarity_port >> 8) & 0x0f;
   1518 	polarity = polarity_port >> 12;
   1519 	polarity = !polarity;	/* Enable */
   1520 	polarity = polarity << gpo;
   1521 	gpo = 1 << gpo;
   1522 	bus_space_write_2(iot, ioh, ESA_GPIO_MASK, ~gpo);
   1523 	data = bus_space_read_2(iot, ioh, ESA_GPIO_DIRECTION);
   1524 	bus_space_write_2(iot, ioh, ESA_GPIO_DIRECTION, data | gpo);
   1525 	data = ESA_GPO_SECONDARY_AC97 | ESA_GPO_PRIMARY_AC97 | polarity;
   1526 	bus_space_write_2(iot, ioh, ESA_GPIO_DATA, data);
   1527 	bus_space_write_2(iot, ioh, ESA_GPIO_MASK, ~0);
   1528 
   1529 	return (0);
   1530 }
   1531 
   1532 void
   1533 esa_enable_interrupts(struct esa_softc *sc)
   1534 {
   1535 	bus_space_tag_t iot = sc->sc_iot;
   1536 	bus_space_handle_t ioh = sc->sc_ioh;
   1537 	u_int8_t data;
   1538 
   1539 	bus_space_write_2(iot, ioh, ESA_HOST_INT_CTRL,
   1540 	    ESA_ASSP_INT_ENABLE | ESA_HV_INT_ENABLE);
   1541 	data = bus_space_read_1(iot, ioh, ESA_ASSP_CONTROL_C);
   1542 	bus_space_write_1(iot, ioh, ESA_ASSP_CONTROL_C,
   1543 	    data | ESA_ASSP_HOST_INT_ENABLE);
   1544 }
   1545 
   1546 /*
   1547  * List management
   1548  */
   1549 int
   1550 esa_add_list(struct esa_voice *vc, struct esa_list *el,
   1551 	     u_int16_t val, int index)
   1552 {
   1553 	struct esa_softc *sc = (struct esa_softc *)vc->parent;
   1554 
   1555 	el->indexmap[index] = el->currlen;
   1556 	esa_write_assp(sc, ESA_MEMTYPE_INTERNAL_DATA,
   1557 		       el->mem_addr + el->currlen,
   1558 		       val);
   1559 
   1560 	return (el->currlen++);
   1561 }
   1562 
   1563 void
   1564 esa_remove_list(struct esa_voice *vc, struct esa_list *el, int index)
   1565 {
   1566 	struct esa_softc *sc = (struct esa_softc *)vc->parent;
   1567 	u_int16_t val;
   1568 	int lastindex = el->currlen - 1;
   1569 	int vindex = el->indexmap[index];
   1570 	int i;
   1571 
   1572 	/* reset our virtual index */
   1573 	el->indexmap[index] = -1;
   1574 
   1575 	if (vindex != lastindex) {
   1576 		val = esa_read_assp(sc, ESA_MEMTYPE_INTERNAL_DATA,
   1577 				    el->mem_addr + lastindex);
   1578 		esa_write_assp(sc, ESA_MEMTYPE_INTERNAL_DATA,
   1579 			       el->mem_addr + vindex,
   1580 			       val);
   1581 		for (i = 0; i < ESA_NUM_VOICES * 2; i++)
   1582 			if (el->indexmap[i] == lastindex)
   1583 				break;
   1584 		if (i >= ESA_NUM_VOICES * 2)
   1585 			printf("%s: esa_remove_list: invalid task index\n",
   1586 			       sc->sc_dev.dv_xname);
   1587 		else
   1588 			el->indexmap[i] = vindex;
   1589 	}
   1590 
   1591 	esa_write_assp(sc, ESA_MEMTYPE_INTERNAL_DATA,
   1592 		       el->mem_addr + lastindex, 0);
   1593 	el->currlen--;
   1594 
   1595 	return;
   1596 }
   1597 
   1598 int
   1599 esa_power(struct esa_softc *sc, int state)
   1600 {
   1601 	pcitag_t tag = sc->sc_tag;
   1602 	pci_chipset_tag_t pc = sc->sc_pct;
   1603 	pcireg_t data;
   1604 	int pmcapreg;
   1605 
   1606 	if (pci_get_capability(pc, tag, PCI_CAP_PWRMGMT, &pmcapreg, 0)) {
   1607 		data = pci_conf_read(pc, tag, pmcapreg + PCI_PMCSR);
   1608 		if ((data & PCI_PMCSR_STATE_MASK) != state)
   1609 			pci_conf_write(pc, tag, pmcapreg + PCI_PMCSR, state);
   1610 	}
   1611 
   1612 	return (0);
   1613 }
   1614 
   1615 void
   1616 esa_powerhook(int why, void *hdl)
   1617 {
   1618 	struct esa_softc *sc = (struct esa_softc *)hdl;
   1619 
   1620 	switch (why) {
   1621 	case PWR_SUSPEND:
   1622 	case PWR_STANDBY:
   1623 		esa_suspend(sc);
   1624 		break;
   1625 	case PWR_RESUME:
   1626 		esa_resume(sc);
   1627 		(sc->codec_if->vtbl->restore_ports)(sc->codec_if);
   1628 		break;
   1629 	}
   1630 }
   1631 
   1632 int
   1633 esa_suspend(struct esa_softc *sc)
   1634 {
   1635 	bus_space_tag_t iot = sc->sc_iot;
   1636 	bus_space_handle_t ioh = sc->sc_ioh;
   1637 	int i, index;
   1638 
   1639 	index = 0;
   1640 
   1641 	bus_space_write_2(iot, ioh, ESA_HOST_INT_CTRL, 0);
   1642 	bus_space_write_1(iot, ioh, ESA_ASSP_CONTROL_C, 0);
   1643 
   1644 	esa_assp_halt(sc);
   1645 
   1646 	/* Save ASSP state */
   1647 	for (i = ESA_REV_B_CODE_MEMORY_BEGIN; i <= ESA_REV_B_CODE_MEMORY_END;
   1648 	    i++)
   1649 		sc->savemem[index++] = esa_read_assp(sc,
   1650 		    ESA_MEMTYPE_INTERNAL_CODE, i);
   1651 	for (i = ESA_REV_B_DATA_MEMORY_BEGIN; i <= ESA_REV_B_DATA_MEMORY_END;
   1652 	    i++)
   1653 		sc->savemem[index++] = esa_read_assp(sc,
   1654 		    ESA_MEMTYPE_INTERNAL_DATA, i);
   1655 
   1656 	esa_power(sc, PCI_PMCSR_STATE_D3);
   1657 
   1658 	return (0);
   1659 }
   1660 
   1661 int
   1662 esa_resume(struct esa_softc *sc) {
   1663 	bus_space_tag_t iot = sc->sc_iot;
   1664 	bus_space_handle_t ioh = sc->sc_ioh;
   1665 	int i, index;
   1666 	u_int8_t reset_state;
   1667 
   1668 	index = 0;
   1669 
   1670 	esa_power(sc, PCI_PMCSR_STATE_D0);
   1671 	delay(10000);
   1672 
   1673 	esa_config(sc);
   1674 
   1675 	reset_state = esa_assp_halt(sc);
   1676 
   1677 	esa_codec_reset(sc);
   1678 
   1679 	/* restore ASSP */
   1680 	for (i = ESA_REV_B_CODE_MEMORY_BEGIN; i <= ESA_REV_B_CODE_MEMORY_END;
   1681 	    i++)
   1682 		esa_write_assp(sc, ESA_MEMTYPE_INTERNAL_CODE, i,
   1683 		    sc->savemem[index++]);
   1684 	for (i = ESA_REV_B_DATA_MEMORY_BEGIN; i <= ESA_REV_B_DATA_MEMORY_END;
   1685 	    i++)
   1686 		esa_write_assp(sc, ESA_MEMTYPE_INTERNAL_DATA, i,
   1687 		    sc->savemem[index++]);
   1688 
   1689 	esa_write_assp(sc, ESA_MEMTYPE_INTERNAL_DATA, ESA_KDATA_DMA_ACTIVE, 0);
   1690 	bus_space_write_1(iot, ioh, ESA_DSP_PORT_CONTROL_REG_B,
   1691 	    reset_state | ESA_REGB_ENABLE_RESET);
   1692 
   1693 	esa_enable_interrupts(sc);
   1694 	esa_amp_enable(sc);
   1695 
   1696 	return (0);
   1697 }
   1698 
   1699 u_int32_t
   1700 esa_get_pointer(struct esa_softc *sc, struct esa_channel *ch)
   1701 {
   1702 	u_int16_t hi = 0, lo = 0;
   1703 	u_int32_t addr;
   1704 	int data_offset = ch->data_offset;
   1705 
   1706 	hi = esa_read_assp(sc, ESA_MEMTYPE_INTERNAL_DATA, data_offset +
   1707 	    ESA_CDATA_HOST_SRC_CURRENTH);
   1708 	lo = esa_read_assp(sc, ESA_MEMTYPE_INTERNAL_DATA, data_offset +
   1709 	    ESA_CDATA_HOST_SRC_CURRENTL);
   1710 
   1711 	addr = lo | ((u_int32_t)hi << 16);
   1712 	return (addr - ch->start);
   1713 }
   1714 
   1715 paddr_t
   1716 esa_mappage(void *addr, void *mem, off_t off, int prot)
   1717 {
   1718 	struct esa_voice *vc = addr;
   1719 	struct esa_softc *sc = (struct esa_softc *)vc->parent;
   1720 	struct esa_dma *p;
   1721 
   1722 	if (off < 0)
   1723 		return (-1);
   1724 	for (p = vc->dma; p && KERNADDR(p) != mem; p = p->next)
   1725 		;
   1726 	if (!p)
   1727 		return (-1);
   1728 	return (bus_dmamem_mmap(sc->sc_dmat, p->segs, p->nsegs,
   1729 				off, prot, BUS_DMA_WAITOK));
   1730 }
   1731