xref: /netbsd-src/sys/dev/pci/esa.c (revision b757af438b42b93f8c6571f026d8b8ef3eaf5fc9)
1 /* $NetBSD: esa.c,v 1.58 2012/01/30 19:41:19 drochner Exp $ */
2 
3 /*
4  * Copyright (c) 2001-2008 Jared D. McNeill <jmcneill@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@zabbo.net>
36  * and Andrew MacDonald <amac@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 1.58 2012/01/30 19:41:19 drochner 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/kmem.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 #include <sys/bus.h>
56 #include <sys/intr.h>
57 
58 #include <dev/audio_if.h>
59 #include <dev/mulaw.h>
60 #include <dev/auconv.h>
61 
62 #include <dev/ic/ac97var.h>
63 #include <dev/ic/ac97reg.h>
64 
65 #include <dev/pci/pcidevs.h>
66 #include <dev/pci/pcivar.h>
67 #include <dev/pci/esareg.h>
68 #include <dev/pci/esadsp.h>
69 #include <dev/pci/esavar.h>
70 
71 #define PCI_CBIO	0x10
72 
73 #define ESA_DAC_DATA	0x1100
74 
75 enum {
76 	ESS_ALLEGRO1,
77 	ESS_MAESTRO3
78 };
79 
80 static const struct esa_card_type {
81 	uint16_t pci_vendor_id;
82 	uint16_t pci_product_id;
83 	int type;
84 	int delay1, delay2;
85 } esa_card_types[] = {
86 	{ PCI_VENDOR_ESSTECH, PCI_PRODUCT_ESSTECH_ALLEGRO1,
87 	  ESS_ALLEGRO1, 50, 800 },
88 	{ PCI_VENDOR_ESSTECH, PCI_PRODUCT_ESSTECH_MAESTRO3,
89 	  ESS_MAESTRO3, 20, 500 },
90 	{ PCI_VENDOR_ESSTECH, PCI_PRODUCT_ESSTECH_MAESTRO3_2,
91 	  ESS_MAESTRO3, 20, 500 },
92 	{ 0, 0, 0, 0, 0 }
93 };
94 
95 static struct audio_device esa_device = {
96 	"ESS Allegro",
97 	"",
98 	"esa"
99 };
100 
101 static int		esa_match(device_t, cfdata_t, void *);
102 static void		esa_attach(device_t, device_t, void *);
103 static int		esa_detach(device_t, int);
104 static void		esa_childdet(device_t, device_t);
105 
106 /* audio(9) functions */
107 static int		esa_query_encoding(void *, struct audio_encoding *);
108 static int		esa_set_params(void *, int, int, audio_params_t *,
109 				       audio_params_t *, stream_filter_list_t *,
110 				       stream_filter_list_t *);
111 static int		esa_round_blocksize(void *, int, int,
112 					    const audio_params_t *);
113 static int		esa_commit_settings(void *);
114 static int		esa_halt_output(void *);
115 static int		esa_halt_input(void *);
116 static int		esa_set_port(void *, mixer_ctrl_t *);
117 static int		esa_get_port(void *, mixer_ctrl_t *);
118 static int		esa_query_devinfo(void *, mixer_devinfo_t *);
119 static void *		esa_malloc(void *, int, size_t);
120 static void		esa_free(void *, void *, size_t);
121 static int		esa_getdev(void *, struct audio_device *);
122 static size_t		esa_round_buffersize(void *, int, size_t);
123 static int		esa_get_props(void *);
124 static int		esa_trigger_output(void *, void *, void *, int,
125 					   void (*)(void *), void *,
126 					   const audio_params_t *);
127 static int		esa_trigger_input(void *, void *, void *, int,
128 					  void (*)(void *), void *,
129 					  const audio_params_t *);
130 static void		esa_get_locks(void *, kmutex_t **, kmutex_t **);
131 
132 static int		esa_intr(void *);
133 static int		esa_allocmem(struct esa_softc *, size_t, size_t,
134 				     struct esa_dma *);
135 static int		esa_freemem(struct esa_softc *, struct esa_dma *);
136 static paddr_t		esa_mappage(void *, void *, off_t, int);
137 
138 /* Supporting subroutines */
139 static uint16_t		esa_read_assp(struct esa_softc *, uint16_t, uint16_t);
140 static void		esa_write_assp(struct esa_softc *, uint16_t, uint16_t,
141 				       uint16_t);
142 static int		esa_init_codec(struct esa_softc *);
143 static int		esa_attach_codec(void *, struct ac97_codec_if *);
144 static int		esa_read_codec(void *, uint8_t, uint16_t *);
145 static int		esa_write_codec(void *, uint8_t, uint16_t);
146 static int		esa_reset_codec(void *);
147 static enum ac97_host_flags	esa_flags_codec(void *);
148 static int		esa_wait(struct esa_softc *);
149 static int		esa_init(struct esa_softc *);
150 static void		esa_config(struct esa_softc *);
151 static uint8_t		esa_assp_halt(struct esa_softc *);
152 static void		esa_codec_reset(struct esa_softc *);
153 static int		esa_amp_enable(struct esa_softc *);
154 static void		esa_enable_interrupts(struct esa_softc *);
155 static uint32_t		esa_get_pointer(struct esa_softc *,
156 					struct esa_channel *);
157 
158 /* list management */
159 static int		esa_add_list(struct esa_voice *, struct esa_list *,
160 				     uint16_t, int);
161 static void		esa_remove_list(struct esa_voice *, struct esa_list *,
162 					int);
163 
164 /* power management */
165 static bool		esa_suspend(device_t, const pmf_qual_t *);
166 static bool		esa_resume(device_t, const pmf_qual_t *);
167 
168 
169 #define ESA_NENCODINGS 8
170 static audio_encoding_t esa_encoding[ESA_NENCODINGS] = {
171 	{ 0, AudioEulinear, AUDIO_ENCODING_ULINEAR, 8, 0 },
172 	{ 1, AudioEmulaw, AUDIO_ENCODING_ULAW, 8,
173 		AUDIO_ENCODINGFLAG_EMULATED },
174 	{ 2, AudioEalaw, AUDIO_ENCODING_ALAW, 8, AUDIO_ENCODINGFLAG_EMULATED },
175 	{ 3, AudioEslinear, AUDIO_ENCODING_SLINEAR, 8,
176 		AUDIO_ENCODINGFLAG_EMULATED }, /* XXX: Are you sure? */
177 	{ 4, AudioEslinear_le, AUDIO_ENCODING_SLINEAR_LE, 16, 0 },
178 	{ 5, AudioEulinear_le, AUDIO_ENCODING_ULINEAR_LE, 16,
179 		AUDIO_ENCODINGFLAG_EMULATED },
180 	{ 6, AudioEslinear_be, AUDIO_ENCODING_SLINEAR_BE, 16,
181 		AUDIO_ENCODINGFLAG_EMULATED },
182 	{ 7, AudioEulinear_be, AUDIO_ENCODING_ULINEAR_BE, 16,
183 		AUDIO_ENCODINGFLAG_EMULATED }
184 };
185 
186 #define ESA_NFORMATS	4
187 static const struct audio_format esa_formats[ESA_NFORMATS] = {
188 	{NULL, AUMODE_PLAY | AUMODE_RECORD, AUDIO_ENCODING_SLINEAR_LE, 16, 16,
189 	 2, AUFMT_STEREO, 0, {ESA_MINRATE, ESA_MAXRATE}},
190 	{NULL, AUMODE_PLAY | AUMODE_RECORD, AUDIO_ENCODING_SLINEAR_LE, 16, 16,
191 	 1, AUFMT_MONAURAL, 0, {ESA_MINRATE, ESA_MAXRATE}},
192 	{NULL, AUMODE_PLAY | AUMODE_RECORD, AUDIO_ENCODING_ULINEAR_LE, 8, 8,
193 	 2, AUFMT_STEREO, 0, {ESA_MINRATE, ESA_MAXRATE}},
194 	{NULL, AUMODE_PLAY | AUMODE_RECORD, AUDIO_ENCODING_ULINEAR_LE, 8, 8,
195 	 1, AUFMT_MONAURAL, 0, {ESA_MINRATE, ESA_MAXRATE}},
196 };
197 
198 static const struct audio_hw_if esa_hw_if = {
199 	NULL,			/* open */
200 	NULL,			/* close */
201 	NULL,			/* drain */
202 	esa_query_encoding,
203 	esa_set_params,
204 	esa_round_blocksize,
205 	esa_commit_settings,
206 	NULL,			/* init_output */
207 	NULL,			/* init_input */
208 	NULL,			/* start_output */
209 	NULL,			/* start_input */
210 	esa_halt_output,
211 	esa_halt_input,
212 	NULL,			/* speaker_ctl */
213 	esa_getdev,
214 	NULL,			/* getfd */
215 	esa_set_port,
216 	esa_get_port,
217 	esa_query_devinfo,
218 	esa_malloc,
219 	esa_free,
220 	esa_round_buffersize,
221 	esa_mappage,
222 	esa_get_props,
223 	esa_trigger_output,
224 	esa_trigger_input,
225 	NULL,	/* dev_ioctl */
226 	esa_get_locks,
227 };
228 
229 CFATTACH_DECL2_NEW(esa, sizeof(struct esa_softc), esa_match, esa_attach,
230     esa_detach, NULL, NULL, esa_childdet);
231 
232 /*
233  * audio(9) functions
234  */
235 
236 static int
237 esa_query_encoding(void *hdl, struct audio_encoding *ae)
238 {
239 
240 	if (ae->index < 0 || ae->index >= ESA_NENCODINGS)
241 		return EINVAL;
242 	*ae = esa_encoding[ae->index];
243 
244 	return 0;
245 }
246 
247 static int
248 esa_set_params(void *hdl, int setmode, int usemode,
249     audio_params_t *play, audio_params_t *rec, stream_filter_list_t *pfil,
250     stream_filter_list_t *rfil)
251 {
252 	struct esa_voice *vc;
253 	struct esa_channel *ch;
254 	struct audio_params *p;
255 	stream_filter_list_t *fil;
256 	int mode, i;
257 
258 	vc = hdl;
259 	for (mode = AUMODE_RECORD; mode != -1;
260 	     mode = (mode == AUMODE_RECORD) ? AUMODE_PLAY : -1) {
261 		if ((setmode & mode) == 0)
262 			continue;
263 
264 		switch (mode) {
265 		case AUMODE_PLAY:
266 			p = play;
267 			ch = &vc->play;
268 			fil = pfil;
269 			break;
270 		case AUMODE_RECORD:
271 			p = rec;
272 			ch = &vc->rec;
273 			fil = rfil;
274 			break;
275 		default:
276 			return EINVAL;
277 		}
278 
279 		if (p->sample_rate < ESA_MINRATE ||
280 		    p->sample_rate > ESA_MAXRATE ||
281 		    (p->precision != 8 && p->precision != 16) ||
282 		    (p->channels < 1 || p->channels > 2))
283 			return EINVAL;
284 
285 		i = auconv_set_converter(esa_formats, ESA_NFORMATS,
286 					 mode, p, FALSE, fil);
287 		if (i < 0)
288 			return EINVAL;
289 		if (fil->req_size > 0)
290 			p = &fil->filters[0].param;
291 		ch->mode = *p;
292 	}
293 
294 	return 0;
295 }
296 
297 static int
298 esa_commit_settings(void *hdl)
299 {
300 	struct esa_voice *vc;
301 	struct esa_softc *sc;
302 	const audio_params_t *p;
303 	const audio_params_t *r;
304 	uint32_t data;
305 	uint32_t freq;
306 	int data_bytes;
307 
308 	vc = hdl;
309 	sc = device_private(vc->parent);
310 	p = &vc->play.mode;
311 	r = &vc->rec.mode;
312 	data_bytes = (((ESA_MINISRC_TMP_BUFFER_SIZE & ~1) +
313 	    (ESA_MINISRC_IN_BUFFER_SIZE & ~1) +
314 	    (ESA_MINISRC_OUT_BUFFER_SIZE & ~1) + 4) + 255)
315 	    &~ 255;
316 	/* playback */
317 	vc->play.data_offset = ESA_DAC_DATA + (data_bytes * vc->index);
318 	if (p->channels == 1)
319 		data = 1;
320 	else
321 		data = 0;
322 	esa_write_assp(sc, ESA_MEMTYPE_INTERNAL_DATA,
323 		       vc->play.data_offset + ESA_SRC3_MODE_OFFSET,
324 		       data);
325 	if (p->precision  == 8)
326 		data = 1;
327 	else
328 		data = 0;
329 	esa_write_assp(sc, ESA_MEMTYPE_INTERNAL_DATA,
330 		       vc->play.data_offset + ESA_SRC3_WORD_LENGTH_OFFSET,
331 		       data);
332 	if ((freq = ((p->sample_rate << 15) + 24000) / 48000) != 0) {
333 		freq--;
334 	}
335 	esa_write_assp(sc, ESA_MEMTYPE_INTERNAL_DATA,
336 		       vc->play.data_offset + ESA_CDATA_FREQUENCY, freq);
337 
338 	/* recording */
339 	vc->rec.data_offset = ESA_DAC_DATA + (data_bytes * vc->index) +
340 			      (data_bytes / 2);
341 	if (r->channels == 1)
342 		data = 1;
343 	else
344 		data = 0;
345 	esa_write_assp(sc, ESA_MEMTYPE_INTERNAL_DATA,
346 		       vc->rec.data_offset + ESA_SRC3_MODE_OFFSET,
347 		       data);
348 	if (r->precision == 8)
349 		data = 1;
350 	else
351 		data = 0;
352 	esa_write_assp(sc, ESA_MEMTYPE_INTERNAL_DATA,
353 		       vc->rec.data_offset + ESA_SRC3_WORD_LENGTH_OFFSET,
354 		       data);
355 	if ((freq = ((r->sample_rate << 15) + 24000) / 48000) != 0) {
356 		freq--;
357 	}
358 	esa_write_assp(sc, ESA_MEMTYPE_INTERNAL_DATA,
359 		       vc->rec.data_offset + ESA_CDATA_FREQUENCY, freq);
360 
361 	return 0;
362 };
363 
364 static int
365 esa_round_blocksize(void *hdl, int bs, int mode,
366     const audio_params_t *param)
367 {
368 
369 	return bs & ~0x20;	/* Be conservative; align to 32 bytes */
370 }
371 
372 static int
373 esa_halt_output(void *hdl)
374 {
375 	struct esa_voice *vc;
376 	struct esa_softc *sc;
377 	bus_space_tag_t iot;
378 	bus_space_handle_t ioh;
379 	uint16_t data;
380 
381 	vc = hdl;
382 	sc = device_private(vc->parent);
383 	iot = sc->sc_iot;
384 	ioh = sc->sc_ioh;
385 	if (vc->play.active == 0)
386 		return 0;
387 
388 	vc->play.active = 0;
389 
390 	esa_write_assp(sc, ESA_MEMTYPE_INTERNAL_DATA,
391 		       ESA_CDATA_INSTANCE_READY + vc->play.data_offset, 0);
392 
393 	sc->sc_ntimers--;
394 	if (sc->sc_ntimers == 0) {
395 		esa_write_assp(sc, ESA_MEMTYPE_INTERNAL_DATA,
396 			       ESA_KDATA_TIMER_COUNT_RELOAD, 0);
397 		esa_write_assp(sc, ESA_MEMTYPE_INTERNAL_DATA,
398 			       ESA_KDATA_TIMER_COUNT_CURRENT, 0);
399 		data = bus_space_read_2(iot, ioh, ESA_HOST_INT_CTRL);
400 		bus_space_write_2(iot, ioh, ESA_HOST_INT_CTRL,
401 		    data & ~ESA_CLKRUN_GEN_ENABLE);
402 	}
403 
404 	esa_write_assp(sc, ESA_MEMTYPE_INTERNAL_DATA,
405 		       ESA_KDATA_MIXER_TASK_NUMBER,
406 		       sc->mixer_list.indexmap[vc->index]);
407 	/* remove ourselves from the packed lists */
408 	esa_remove_list(vc, &sc->mixer_list, vc->index);
409 	esa_remove_list(vc, &sc->dma_list, vc->index);
410 	esa_remove_list(vc, &sc->msrc_list, vc->index);
411 
412 	return 0;
413 }
414 
415 static int
416 esa_halt_input(void *hdl)
417 {
418 	struct esa_voice *vc;
419 	struct esa_softc *sc;
420 	bus_space_tag_t iot;
421 	bus_space_handle_t ioh;
422 	uint32_t data;
423 
424 	vc = hdl;
425 	sc = device_private(vc->parent);
426 	iot = sc->sc_iot;
427 	ioh = sc->sc_ioh;
428 	if (vc->rec.active == 0)
429 		return 0;
430 
431 	vc->rec.active = 0;
432 
433 	sc->sc_ntimers--;
434 	if (sc->sc_ntimers == 0) {
435 		esa_write_assp(sc, ESA_MEMTYPE_INTERNAL_DATA,
436 			       ESA_KDATA_TIMER_COUNT_RELOAD, 0);
437 		esa_write_assp(sc, ESA_MEMTYPE_INTERNAL_DATA,
438 			       ESA_KDATA_TIMER_COUNT_CURRENT, 0);
439 		data = bus_space_read_2(iot, ioh, ESA_HOST_INT_CTRL);
440 		bus_space_write_2(iot, ioh, ESA_HOST_INT_CTRL,
441 				  data & ~ESA_CLKRUN_GEN_ENABLE);
442 	}
443 
444 	esa_write_assp(sc, ESA_MEMTYPE_INTERNAL_DATA, vc->rec.data_offset +
445 		       ESA_CDATA_INSTANCE_READY, 0);
446 	esa_write_assp(sc, ESA_MEMTYPE_INTERNAL_DATA, ESA_KDATA_ADC1_REQUEST,
447 		       0);
448 
449 	/* remove ourselves from the packed lists */
450 	esa_remove_list(vc, &sc->adc1_list, vc->index + ESA_NUM_VOICES);
451 	esa_remove_list(vc, &sc->dma_list, vc->index + ESA_NUM_VOICES);
452 	esa_remove_list(vc, &sc->msrc_list, vc->index + ESA_NUM_VOICES);
453 
454 	return 0;
455 }
456 
457 static void *
458 esa_malloc(void *hdl, int direction, size_t size)
459 {
460 	struct esa_voice *vc;
461 	struct esa_softc *sc;
462 	struct esa_dma *p;
463 	int error;
464 
465 	p = kmem_alloc(sizeof(*p), KM_SLEEP);
466 	if (p == NULL)
467 		return NULL;
468 	vc = hdl;
469 	sc = device_private(vc->parent);
470 	error = esa_allocmem(sc, size, 16, p);
471 	if (error) {
472 		kmem_free(p, sizeof(*p));
473 		aprint_error_dev(sc->sc_dev,
474 		    "%s: not enough memory\n", __func__);
475 		return 0;
476 	}
477 	p->next = vc->dma;
478 	vc->dma = p;
479 
480 	return KERNADDR(p);
481 }
482 
483 static void
484 esa_free(void *hdl, void *addr, size_t size)
485 {
486 	struct esa_voice *vc;
487 	struct esa_softc *sc;
488 	struct esa_dma *p;
489 	struct esa_dma **pp;
490 
491 	vc = hdl;
492 	sc = device_private(vc->parent);
493 	for (pp = &vc->dma; (p = *pp) != NULL; pp = &p->next)
494 		if (KERNADDR(p) == addr) {
495 			esa_freemem(sc, p);
496 			*pp = p->next;
497 			kmem_free(p, sizeof(*p));
498 			return;
499 		}
500 }
501 
502 static int
503 esa_getdev(void *hdl, struct audio_device *ret)
504 {
505 
506 	*ret = esa_device;
507 	return 0;
508 }
509 
510 static int
511 esa_set_port(void *hdl, mixer_ctrl_t *mc)
512 {
513 	struct esa_voice *vc;
514 	struct esa_softc *sc;
515 
516 	vc = hdl;
517 	sc = device_private(vc->parent);
518 	return sc->codec_if->vtbl->mixer_set_port(sc->codec_if, mc);
519 }
520 
521 static int
522 esa_get_port(void *hdl, mixer_ctrl_t *mc)
523 {
524 	struct esa_voice *vc;
525 	struct esa_softc *sc;
526 
527 	vc = hdl;
528 	sc = device_private(vc->parent);
529 	return sc->codec_if->vtbl->mixer_get_port(sc->codec_if, mc);
530 }
531 
532 static int
533 esa_query_devinfo(void *hdl, mixer_devinfo_t *di)
534 {
535 	struct esa_voice *vc;
536 	struct esa_softc *sc;
537 
538 	vc = hdl;
539 	sc = device_private(vc->parent);
540 	return sc->codec_if->vtbl->query_devinfo(sc->codec_if, di);
541 }
542 
543 static size_t
544 esa_round_buffersize(void *hdl, int direction, size_t bufsize)
545 {
546 
547 	return bufsize;
548 }
549 
550 static int
551 esa_get_props(void *hdl)
552 {
553 
554 	return AUDIO_PROP_MMAP | AUDIO_PROP_INDEPENDENT | AUDIO_PROP_FULLDUPLEX;
555 }
556 
557 static int
558 esa_trigger_output(void *hdl, void *start, void *end, int blksize,
559     void (*intr)(void *), void *intrarg, const audio_params_t *param)
560 {
561 	struct esa_voice *vc;
562 	struct esa_softc *sc;
563 	struct esa_dma *p;
564 	bus_space_tag_t iot;
565 	bus_space_handle_t ioh;
566 	size_t size;
567 	uint32_t data, bufaddr, i;
568 	int data_bytes, dac_data, dsp_in_size;
569 	int dsp_out_size, dsp_in_buf, dsp_out_buf;
570 
571 	vc = hdl;
572 	sc = device_private(vc->parent);
573 	iot = sc->sc_iot;
574 	ioh = sc->sc_ioh;
575 	data_bytes = (((ESA_MINISRC_TMP_BUFFER_SIZE & ~1) +
576 	    (ESA_MINISRC_IN_BUFFER_SIZE & ~1) +
577 	    (ESA_MINISRC_OUT_BUFFER_SIZE & ~1) + 4) + 255) & ~255;
578 	dac_data = ESA_DAC_DATA + (data_bytes * vc->index);
579 	dsp_in_size = ESA_MINISRC_IN_BUFFER_SIZE - (0x20 * 2);
580 	dsp_out_size = ESA_MINISRC_OUT_BUFFER_SIZE - (0x20 * 2);
581 	dsp_in_buf = dac_data + (ESA_MINISRC_TMP_BUFFER_SIZE / 2);
582 	dsp_out_buf = dsp_in_buf + (dsp_in_size / 2) + 1;
583 
584 	if (vc->play.active)
585 		return EINVAL;
586 
587 	for (p = vc->dma; p && KERNADDR(p) != start; p = p->next)
588 		continue;
589 	if (p == NULL) {
590 		aprint_error_dev(sc->sc_dev, "%s: bad addr %p\n", __func__,
591 		    start);
592 		return EINVAL;
593 	}
594 
595 	vc->play.active = 1;
596 	vc->play.intr = intr;
597 	vc->play.arg = intrarg;
598 	vc->play.pos = 0;
599 	vc->play.count = 0;
600 	vc->play.buf = start;
601 	vc->play.bufsize = size = (size_t)(((char *)end - (char *)start));
602 	vc->play.blksize = blksize;
603 	bufaddr = DMAADDR(p);
604 	vc->play.start = bufaddr;
605 
606 #define LO(x) ((x) & 0x0000ffff)
607 #define HI(x) ((x) >> 16)
608 
609 	esa_write_assp(sc, ESA_MEMTYPE_INTERNAL_DATA, dac_data +
610 	    ESA_CDATA_HOST_SRC_ADDRL, LO(bufaddr));
611 	esa_write_assp(sc, ESA_MEMTYPE_INTERNAL_DATA, dac_data +
612 	    ESA_CDATA_HOST_SRC_ADDRH, HI(bufaddr));
613 	esa_write_assp(sc, ESA_MEMTYPE_INTERNAL_DATA, dac_data +
614 	    ESA_CDATA_HOST_SRC_END_PLUS_1L, LO(bufaddr + size));
615 	esa_write_assp(sc, ESA_MEMTYPE_INTERNAL_DATA, dac_data +
616 	    ESA_CDATA_HOST_SRC_END_PLUS_1H, HI(bufaddr + size));
617 	esa_write_assp(sc, ESA_MEMTYPE_INTERNAL_DATA, dac_data +
618 	    ESA_CDATA_HOST_SRC_CURRENTL, LO(bufaddr));
619 	esa_write_assp(sc, ESA_MEMTYPE_INTERNAL_DATA, dac_data +
620 	    ESA_CDATA_HOST_SRC_CURRENTH, HI(bufaddr));
621 
622 	/* DSP buffers */
623 	esa_write_assp(sc, ESA_MEMTYPE_INTERNAL_DATA, dac_data +
624 	    ESA_CDATA_IN_BUF_BEGIN, dsp_in_buf);
625 	esa_write_assp(sc, ESA_MEMTYPE_INTERNAL_DATA, dac_data +
626 	    ESA_CDATA_IN_BUF_END_PLUS_1, dsp_in_buf + (dsp_in_size / 2));
627 	esa_write_assp(sc, ESA_MEMTYPE_INTERNAL_DATA, dac_data +
628 	    ESA_CDATA_IN_BUF_HEAD, dsp_in_buf);
629 	esa_write_assp(sc, ESA_MEMTYPE_INTERNAL_DATA, dac_data +
630 	    ESA_CDATA_IN_BUF_TAIL, dsp_in_buf);
631 	esa_write_assp(sc, ESA_MEMTYPE_INTERNAL_DATA, dac_data +
632 	    ESA_CDATA_OUT_BUF_BEGIN, dsp_out_buf);
633 	esa_write_assp(sc, ESA_MEMTYPE_INTERNAL_DATA, dac_data +
634 	    ESA_CDATA_OUT_BUF_END_PLUS_1, dsp_out_buf + (dsp_out_size / 2));
635 	esa_write_assp(sc, ESA_MEMTYPE_INTERNAL_DATA, dac_data +
636 	    ESA_CDATA_OUT_BUF_HEAD, dsp_out_buf);
637 	esa_write_assp(sc, ESA_MEMTYPE_INTERNAL_DATA, dac_data +
638 	    ESA_CDATA_OUT_BUF_TAIL, dsp_out_buf);
639 
640 	/* Some per-client initializers */
641 	esa_write_assp(sc, ESA_MEMTYPE_INTERNAL_DATA, dac_data +
642 	    ESA_SRC3_DIRECTION_OFFSET + 12, dac_data + 40 + 8);
643 	esa_write_assp(sc, ESA_MEMTYPE_INTERNAL_DATA, dac_data +
644 	    ESA_SRC3_DIRECTION_OFFSET + 19, 0x400 + ESA_MINISRC_COEF_LOC);
645 	/* Enable or disable low-pass filter? (0xff if rate > 45000) */
646 	esa_write_assp(sc, ESA_MEMTYPE_INTERNAL_DATA, dac_data +
647 	    ESA_SRC3_DIRECTION_OFFSET + 22,
648 	    vc->play.mode.sample_rate > 45000 ? 0xff : 0);
649 	/* Tell it which way DMA is going */
650 	esa_write_assp(sc, ESA_MEMTYPE_INTERNAL_DATA, dac_data +
651 	    ESA_CDATA_DMA_CONTROL,
652 	    ESA_DMACONTROL_AUTOREPEAT + ESA_DMAC_PAGE3_SELECTOR +
653 	    ESA_DMAC_BLOCKF_SELECTOR);
654 
655 	/* Set an armload of static initializers */
656 	for (i = 0; i < (sizeof(esa_playvals) / sizeof(esa_playvals[0])); i++)
657 		esa_write_assp(sc, ESA_MEMTYPE_INTERNAL_DATA, dac_data +
658 		    esa_playvals[i].addr, esa_playvals[i].val);
659 
660 	/* Put us in the packed task lists */
661 	esa_add_list(vc, &sc->msrc_list, dac_data >> ESA_DP_SHIFT_COUNT,
662 		     vc->index);
663 	esa_add_list(vc, &sc->dma_list, dac_data >> ESA_DP_SHIFT_COUNT,
664 		     vc->index);
665 	esa_add_list(vc, &sc->mixer_list, dac_data >> ESA_DP_SHIFT_COUNT,
666 		     vc->index);
667 #undef LO
668 #undef HI
669 
670 	sc->sc_ntimers++;
671 
672 	if (sc->sc_ntimers == 1) {
673 		esa_write_assp(sc, ESA_MEMTYPE_INTERNAL_DATA,
674 		    ESA_KDATA_TIMER_COUNT_RELOAD, 240);
675 		esa_write_assp(sc, ESA_MEMTYPE_INTERNAL_DATA,
676 		    ESA_KDATA_TIMER_COUNT_CURRENT, 240);
677 		data = bus_space_read_2(iot, ioh, ESA_HOST_INT_CTRL);
678 		bus_space_write_2(iot, ioh, ESA_HOST_INT_CTRL,
679 		    data | ESA_CLKRUN_GEN_ENABLE);
680 	}
681 
682 	esa_write_assp(sc, ESA_MEMTYPE_INTERNAL_DATA, dac_data +
683 	    ESA_CDATA_INSTANCE_READY, 1);
684 	esa_write_assp(sc, ESA_MEMTYPE_INTERNAL_DATA,
685 	    ESA_KDATA_MIXER_TASK_NUMBER,
686 	    sc->mixer_list.indexmap[vc->index]);
687 
688 	return 0;
689 }
690 
691 static int
692 esa_trigger_input(void *hdl, void *start, void *end, int blksize,
693     void (*intr)(void *), void *intrarg, const audio_params_t *param)
694 {
695 	struct esa_voice *vc;
696 	struct esa_softc *sc;
697 	struct esa_dma *p;
698 	bus_space_tag_t iot;
699 	bus_space_handle_t ioh;
700 	uint32_t data, bufaddr, i;
701 	size_t size;
702 	int data_bytes, adc_data, dsp_in_size;
703 	int dsp_out_size, dsp_in_buf, dsp_out_buf;
704 
705 	vc = hdl;
706 	sc = device_private(vc->parent);
707 	iot = sc->sc_iot;
708 	ioh = sc->sc_ioh;
709 	data_bytes = (((ESA_MINISRC_TMP_BUFFER_SIZE & ~1) +
710 	    (ESA_MINISRC_IN_BUFFER_SIZE & ~1) +
711 	    (ESA_MINISRC_OUT_BUFFER_SIZE & ~1) + 4) + 255) & ~255;
712 	adc_data = ESA_DAC_DATA + (data_bytes * vc->index) + (data_bytes / 2);
713 	dsp_in_size = ESA_MINISRC_IN_BUFFER_SIZE - (0x10 * 2);
714 	dsp_out_size = ESA_MINISRC_OUT_BUFFER_SIZE - (0x10 * 2);
715 	dsp_in_buf = adc_data + (ESA_MINISRC_TMP_BUFFER_SIZE / 2);
716 	dsp_out_buf = dsp_in_buf + (dsp_in_size / 2) + 1;
717 
718 	vc->rec.data_offset = adc_data;
719 
720 	/* We only support 1 recording channel */
721 	if (vc->index > 0)
722 		return ENODEV;
723 
724 	if (vc->rec.active)
725 		return EINVAL;
726 
727 	for (p = vc->dma; p && KERNADDR(p) != start; p = p->next)
728 		continue;
729 	if (p == NULL) {
730 		aprint_error_dev(sc->sc_dev, "%s: bad addr %p\n",
731 		    __func__, start);
732 		return EINVAL;
733 	}
734 
735 	vc->rec.active = 1;
736 	vc->rec.intr = intr;
737 	vc->rec.arg = intrarg;
738 	vc->rec.pos = 0;
739 	vc->rec.count = 0;
740 	vc->rec.buf = start;
741 	vc->rec.bufsize = size = (size_t)(((char *)end - (char *)start));
742 	vc->rec.blksize = blksize;
743 	bufaddr = DMAADDR(p);
744 	vc->rec.start = bufaddr;
745 
746 #define LO(x) ((x) & 0x0000ffff)
747 #define HI(x) ((x) >> 16)
748 
749 	esa_write_assp(sc, ESA_MEMTYPE_INTERNAL_DATA, adc_data +
750 	    ESA_CDATA_HOST_SRC_ADDRL, LO(bufaddr));
751 	esa_write_assp(sc, ESA_MEMTYPE_INTERNAL_DATA, adc_data +
752 	    ESA_CDATA_HOST_SRC_ADDRH, HI(bufaddr));
753 	esa_write_assp(sc, ESA_MEMTYPE_INTERNAL_DATA, adc_data +
754 	    ESA_CDATA_HOST_SRC_END_PLUS_1L, LO(bufaddr + size));
755 	esa_write_assp(sc, ESA_MEMTYPE_INTERNAL_DATA, adc_data +
756 	    ESA_CDATA_HOST_SRC_END_PLUS_1H, HI(bufaddr + size));
757 	esa_write_assp(sc, ESA_MEMTYPE_INTERNAL_DATA, adc_data +
758 	    ESA_CDATA_HOST_SRC_CURRENTL, LO(bufaddr));
759 	esa_write_assp(sc, ESA_MEMTYPE_INTERNAL_DATA, adc_data +
760 	    ESA_CDATA_HOST_SRC_CURRENTH, HI(bufaddr));
761 
762 	/* DSP buffers */
763 	esa_write_assp(sc, ESA_MEMTYPE_INTERNAL_DATA, adc_data +
764 	    ESA_CDATA_IN_BUF_BEGIN, dsp_in_buf);
765 	esa_write_assp(sc, ESA_MEMTYPE_INTERNAL_DATA, adc_data +
766 	    ESA_CDATA_IN_BUF_END_PLUS_1, dsp_in_buf + (dsp_in_size / 2));
767 	esa_write_assp(sc, ESA_MEMTYPE_INTERNAL_DATA, adc_data +
768 	    ESA_CDATA_IN_BUF_HEAD, dsp_in_buf);
769 	esa_write_assp(sc, ESA_MEMTYPE_INTERNAL_DATA, adc_data +
770 	    ESA_CDATA_IN_BUF_TAIL, dsp_in_buf);
771 	esa_write_assp(sc, ESA_MEMTYPE_INTERNAL_DATA, adc_data +
772 	    ESA_CDATA_OUT_BUF_BEGIN, dsp_out_buf);
773 	esa_write_assp(sc, ESA_MEMTYPE_INTERNAL_DATA, adc_data +
774 	    ESA_CDATA_OUT_BUF_END_PLUS_1, dsp_out_buf + (dsp_out_size / 2));
775 	esa_write_assp(sc, ESA_MEMTYPE_INTERNAL_DATA, adc_data +
776 	    ESA_CDATA_OUT_BUF_HEAD, dsp_out_buf);
777 	esa_write_assp(sc, ESA_MEMTYPE_INTERNAL_DATA, adc_data +
778 	    ESA_CDATA_OUT_BUF_TAIL, dsp_out_buf);
779 
780 	/* Some per-client initializers */
781 	esa_write_assp(sc, ESA_MEMTYPE_INTERNAL_DATA, adc_data +
782 	    ESA_SRC3_DIRECTION_OFFSET + 12, adc_data + 40 + 8);
783 	/* Tell it which way DMA is going */
784 	esa_write_assp(sc, ESA_MEMTYPE_INTERNAL_DATA, adc_data +
785 	    ESA_CDATA_DMA_CONTROL,
786 	    ESA_DMACONTROL_DIRECTION + ESA_DMACONTROL_AUTOREPEAT +
787 	    ESA_DMAC_PAGE3_SELECTOR + ESA_DMAC_BLOCKF_SELECTOR);
788 
789 	/* Set an armload of static initializers */
790 	for (i = 0; i < (sizeof(esa_recvals) / sizeof(esa_recvals[0])); i++)
791 		esa_write_assp(sc, ESA_MEMTYPE_INTERNAL_DATA, adc_data +
792 		    esa_recvals[i].addr, esa_recvals[i].val);
793 
794 	/* Put us in the packed task lists */
795 	esa_add_list(vc, &sc->adc1_list, adc_data >> ESA_DP_SHIFT_COUNT,
796 		     vc->index + ESA_NUM_VOICES);
797 	esa_add_list(vc, &sc->msrc_list, adc_data >> ESA_DP_SHIFT_COUNT,
798 		     vc->index + ESA_NUM_VOICES);
799 	esa_add_list(vc, &sc->dma_list, adc_data >> ESA_DP_SHIFT_COUNT,
800 		     vc->index + ESA_NUM_VOICES);
801 #undef LO
802 #undef HI
803 
804 	sc->sc_ntimers++;
805 	if (sc->sc_ntimers == 1) {
806 		esa_write_assp(sc, ESA_MEMTYPE_INTERNAL_DATA,
807 		    ESA_KDATA_TIMER_COUNT_RELOAD, 240);
808 		esa_write_assp(sc, ESA_MEMTYPE_INTERNAL_DATA,
809 		    ESA_KDATA_TIMER_COUNT_CURRENT, 240);
810 		data = bus_space_read_2(iot, ioh, ESA_HOST_INT_CTRL);
811 		bus_space_write_2(iot, ioh, ESA_HOST_INT_CTRL,
812 		    data | ESA_CLKRUN_GEN_ENABLE);
813 	}
814 
815 	esa_write_assp(sc, ESA_MEMTYPE_INTERNAL_DATA, adc_data +
816 	    ESA_CDATA_INSTANCE_READY, 1);
817 	esa_write_assp(sc, ESA_MEMTYPE_INTERNAL_DATA, ESA_KDATA_ADC1_REQUEST,
818 	    1);
819 
820 	return 0;
821 }
822 
823 /* Interrupt handler */
824 static int
825 esa_intr(void *hdl)
826 {
827 	struct esa_softc *sc;
828 	struct esa_voice *vc;
829 	bus_space_tag_t iot;
830 	bus_space_handle_t ioh;
831 	uint8_t status;
832 	uint32_t pos;
833 	uint32_t diff;
834 	uint32_t blksize;
835 	int i;
836 
837 	sc = hdl;
838 	mutex_spin_enter(&sc->sc_intr_lock);
839 
840 	iot = sc->sc_iot;
841 	ioh = sc->sc_ioh;
842 
843 	status = bus_space_read_1(iot, ioh, ESA_HOST_INT_STATUS);
844 	if (status == 0xff) {
845 		mutex_spin_exit(&sc->sc_intr_lock);
846 		return 0;
847 	}
848 
849 	/* ack the interrupt */
850 	bus_space_write_1(iot, ioh, ESA_HOST_INT_STATUS, status);
851 
852 	if (status & ESA_HV_INT_PENDING) {
853 		uint8_t event;
854 
855 		aprint_normal_dev(sc->sc_dev, "hardware volume interrupt\n");
856 		event = bus_space_read_1(iot, ioh, ESA_HW_VOL_COUNTER_MASTER);
857 		switch(event) {
858 		case 0xaa:	/* volume up */
859 			pmf_event_inject(NULL, PMFE_AUDIO_VOLUME_UP);
860 			break;
861 		case 0x66:	/* volume down */
862 			pmf_event_inject(NULL, PMFE_AUDIO_VOLUME_DOWN);
863 			break;
864 		case 0x88:	/* mute */
865 			pmf_event_inject(NULL, PMFE_AUDIO_VOLUME_TOGGLE);
866 			break;
867 		default:
868 			aprint_normal_dev(sc->sc_dev,
869 			    "unknown hwvol event 0x%02x\n", event);
870 			break;
871 		}
872 		bus_space_write_1(iot, ioh, ESA_HW_VOL_COUNTER_MASTER, 0x88);
873 	}
874 
875 	if ((status & ESA_ASSP_INT_PENDING) == 0 ||
876 	    (bus_space_read_1(iot, ioh,
877 	     ESA_ASSP_CONTROL_B) & ESA_STOP_ASSP_CLOCK) != 0 ||
878 	    (bus_space_read_1(iot, ioh,
879 	     ESA_ASSP_HOST_INT_STATUS) & ESA_DSP2HOST_REQ_TIMER) == 0) {
880 		mutex_spin_exit(&sc->sc_intr_lock);
881 		return 1;
882 	}
883 
884 	bus_space_write_1(iot, ioh, ESA_ASSP_HOST_INT_STATUS,
885 	    ESA_DSP2HOST_REQ_TIMER);
886 
887 	for (i = 0; i < ESA_NUM_VOICES; i++) {
888 		vc = &sc->voice[i];
889 
890 		if (vc->play.active) {
891 			pos = esa_get_pointer(sc, &vc->play) % vc->play.bufsize;
892 			diff = (vc->play.bufsize + pos - vc->play.pos) %
893 			    vc->play.bufsize;
894 
895 			vc->play.pos = pos;
896 			vc->play.count += diff;
897 			blksize = vc->play.blksize;
898 
899 			while (vc->play.count >= blksize) {
900 				vc->play.count -= blksize;
901 				(*vc->play.intr)(vc->play.arg);
902 			}
903 		}
904 
905 		if (vc->rec.active) {
906 			pos = esa_get_pointer(sc, &vc->rec) % vc->rec.bufsize;
907 			diff = (vc->rec.bufsize + pos - vc->rec.pos) %
908 			    vc->rec.bufsize;
909 
910 			vc->rec.pos = pos;
911 			vc->rec.count += diff;
912 			blksize = vc->rec.blksize;
913 
914 			while (vc->rec.count >= blksize) {
915 				vc->rec.count -= blksize;
916 				(*vc->rec.intr)(vc->rec.arg);
917 			}
918 		}
919 	}
920 
921 	mutex_spin_exit(&sc->sc_intr_lock);
922 	return 1;
923 }
924 
925 static int
926 esa_allocmem(struct esa_softc *sc, size_t size, size_t align,
927 	     struct esa_dma *p)
928 {
929 	int error;
930 
931 	p->size = size;
932 	error = bus_dmamem_alloc(sc->sc_dmat, p->size, align, 0,
933 				 p->segs, sizeof(p->segs) / sizeof(p->segs[0]),
934 				 &p->nsegs, BUS_DMA_WAITOK);
935 	if (error)
936 		return error;
937 
938 	error = bus_dmamem_map(sc->sc_dmat, p->segs, p->nsegs, p->size,
939 				&p->addr, BUS_DMA_WAITOK | BUS_DMA_COHERENT);
940 	if (error)
941 		goto free;
942 
943 	error = bus_dmamap_create(sc->sc_dmat, p->size, 1, p->size, 0,
944 				  BUS_DMA_WAITOK, &p->map);
945 	if (error)
946 		goto unmap;
947 
948 	error = bus_dmamap_load(sc->sc_dmat, p->map, p->addr, p->size, NULL,
949 				BUS_DMA_WAITOK);
950 	if (error)
951 		goto destroy;
952 
953 	return 0;
954 
955 destroy:
956 	bus_dmamap_destroy(sc->sc_dmat, p->map);
957 unmap:
958 	bus_dmamem_unmap(sc->sc_dmat, p->addr, p->size);
959 free:
960 	bus_dmamem_free(sc->sc_dmat, p->segs, p->nsegs);
961 
962 	return error;
963 }
964 
965 static int
966 esa_freemem(struct esa_softc *sc, struct esa_dma *p)
967 {
968 
969 	bus_dmamap_unload(sc->sc_dmat, p->map);
970 	bus_dmamap_destroy(sc->sc_dmat, p->map);
971 	bus_dmamem_unmap(sc->sc_dmat, p->addr, p->size);
972 	bus_dmamem_free(sc->sc_dmat, p->segs, p->nsegs);
973 
974 	return 0;
975 }
976 
977 /*
978  * Supporting Subroutines
979  */
980 
981 static int
982 esa_match(device_t dev, cfdata_t match, void *aux)
983 {
984 	struct pci_attach_args *pa;
985 
986 	pa = (struct pci_attach_args *)aux;
987 	switch (PCI_VENDOR(pa->pa_id)) {
988 	case PCI_VENDOR_ESSTECH:
989 		switch(PCI_PRODUCT(pa->pa_id)) {
990 		case PCI_PRODUCT_ESSTECH_ALLEGRO1:
991 		case PCI_PRODUCT_ESSTECH_MAESTRO3:
992 		case PCI_PRODUCT_ESSTECH_MAESTRO3_2:
993 			return 1;
994 		}
995 	}
996 
997 	return 0;
998 }
999 
1000 static void
1001 esa_attach(device_t parent, device_t self, void *aux)
1002 {
1003 	struct esa_softc *sc;
1004 	struct pci_attach_args *pa;
1005 	pcitag_t tag;
1006 	pci_chipset_tag_t pc;
1007 	pci_intr_handle_t ih;
1008 	const struct esa_card_type *card;
1009 	const char *intrstr;
1010 	uint32_t data;
1011 	int revision, i, error;
1012 
1013 	sc = device_private(self);
1014 	pa = (struct pci_attach_args *)aux;
1015 	tag = pa->pa_tag;
1016 	pc = pa->pa_pc;
1017 
1018 	pci_aprint_devinfo(pa, "Audio controller");
1019 
1020 	revision = PCI_REVISION(pa->pa_class);
1021 
1022 	for (card = esa_card_types; card->pci_vendor_id; card++)
1023 		if (PCI_VENDOR(pa->pa_id) == card->pci_vendor_id &&
1024 		    PCI_PRODUCT(pa->pa_id) == card->pci_product_id) {
1025 			sc->type = card->type;
1026 			sc->delay1 = card->delay1;
1027 			sc->delay2 = card->delay2;
1028 			break;
1029 		}
1030 
1031 	data = pci_conf_read(pc, tag, PCI_COMMAND_STATUS_REG);
1032 	data |= (PCI_COMMAND_IO_ENABLE | PCI_COMMAND_MEM_ENABLE
1033 	    | PCI_COMMAND_MASTER_ENABLE);
1034 	pci_conf_write(pc, tag, PCI_COMMAND_STATUS_REG, data);
1035 
1036 	/* Map I/O register */
1037 	if (pci_mapreg_map(pa, PCI_CBIO, PCI_MAPREG_TYPE_IO, 0,
1038 	    &sc->sc_iot, &sc->sc_ioh, &sc->sc_iob, &sc->sc_ios)) {
1039 		aprint_error_dev(sc->sc_dev, "can't map i/o space\n");
1040 		return;
1041 	}
1042 
1043 	/* Initialize softc */
1044 	sc->sc_dev = self;
1045 	sc->sc_tag = tag;
1046 	sc->sc_pct = pc;
1047 	sc->sc_dmat = pa->pa_dmat;
1048 
1049 	mutex_init(&sc->sc_lock, MUTEX_DEFAULT, IPL_NONE);
1050 	mutex_init(&sc->sc_intr_lock, MUTEX_DEFAULT, IPL_AUDIO);
1051 
1052 	/* Map and establish an interrupt */
1053 	if (pci_intr_map(pa, &ih)) {
1054 		aprint_error_dev(sc->sc_dev, "can't map interrupt\n");
1055 		mutex_destroy(&sc->sc_lock);
1056 		mutex_destroy(&sc->sc_intr_lock);
1057 		return;
1058 	}
1059 	intrstr = pci_intr_string(pc, ih);
1060 	sc->sc_ih = pci_intr_establish(pc, ih, IPL_AUDIO, esa_intr, sc);
1061 	if (sc->sc_ih == NULL) {
1062 		aprint_error_dev(sc->sc_dev, "can't establish interrupt");
1063 		if (intrstr != NULL)
1064 			aprint_error(" at %s", intrstr);
1065 		aprint_error("\n");
1066 		mutex_destroy(&sc->sc_lock);
1067 		mutex_destroy(&sc->sc_intr_lock);
1068 		return;
1069 	}
1070 	aprint_normal_dev(sc->sc_dev, "interrupting at %s\n", intrstr);
1071 
1072 	/* power up chip */
1073 	if ((error = pci_activate(pa->pa_pc, pa->pa_tag, self,
1074 	    pci_activate_null)) && error != EOPNOTSUPP) {
1075 		aprint_error_dev(sc->sc_dev, "cannot activate %d\n", error);
1076 		mutex_destroy(&sc->sc_lock);
1077 		mutex_destroy(&sc->sc_intr_lock);
1078 		return;
1079 	}
1080 
1081 	/* Init chip */
1082 	if (esa_init(sc) == -1) {
1083 		aprint_error_dev(sc->sc_dev,
1084 		    "esa_attach: unable to initialize the card\n");
1085 		mutex_destroy(&sc->sc_lock);
1086 		mutex_destroy(&sc->sc_intr_lock);
1087 		return;
1088 	}
1089 
1090 	/* create suspend save area */
1091 	sc->savememsz = sizeof(uint16_t) * (ESA_REV_B_CODE_MEMORY_LENGTH
1092 	    + ESA_REV_B_DATA_MEMORY_LENGTH + 1);
1093 	sc->savemem = (uint16_t *)kmem_zalloc(sc->savememsz, KM_SLEEP);
1094 	if (sc->savemem == NULL) {
1095 		aprint_error_dev(sc->sc_dev,
1096 		    "unable to allocate suspend buffer\n");
1097 		mutex_destroy(&sc->sc_lock);
1098 		mutex_destroy(&sc->sc_intr_lock);
1099 		return;
1100 	}
1101 
1102 	/*
1103 	 * Every card I've seen has had their channels swapped with respect
1104 	 * to the mixer. Ie:
1105 	 *  $ mixerctl -w outputs.master=0,191
1106 	 * Would result in the _right_ speaker being turned off.
1107 	 *
1108 	 * So, we will swap the left and right mixer channels to compensate
1109 	 * for this.
1110 	 *
1111 	 * XXX PR# 23620: The Dell C810 channels are not swapped. Match
1112 	 *     on revision ID for now; this is probably wrong.
1113 	 */
1114 	if (revision == 0x10 && sc->type == ESS_MAESTRO3)
1115 		sc->codec_flags = 0;
1116 	else
1117 		sc->codec_flags = AC97_HOST_SWAPPED_CHANNELS;
1118 
1119 	/* initialize list management structures */
1120 	sc->mixer_list.mem_addr = ESA_KDATA_MIXER_XFER0;
1121 	sc->mixer_list.max = ESA_MAX_VIRTUAL_MIXER_CHANNELS;
1122 	sc->adc1_list.mem_addr = ESA_KDATA_ADC1_XFER0;
1123 	sc->adc1_list.max = ESA_MAX_VIRTUAL_ADC1_CHANNELS;
1124 	sc->dma_list.mem_addr = ESA_KDATA_DMA_XFER0;
1125 	sc->dma_list.max = ESA_MAX_VIRTUAL_DMA_CHANNELS;
1126 	sc->msrc_list.mem_addr = ESA_KDATA_INSTANCE0_MINISRC;
1127 	sc->msrc_list.max = ESA_MAX_INSTANCE_MINISRC;
1128 
1129 	/* initialize index maps */
1130 	for (i = 0; i < ESA_NUM_VOICES * 2; i++) {
1131 		sc->mixer_list.indexmap[i] = -1;
1132 		sc->msrc_list.indexmap[i] = -1;
1133 		sc->dma_list.indexmap[i] = -1;
1134 		sc->adc1_list.indexmap[i] = -1;
1135 	}
1136 
1137 	/* Attach AC97 host interface */
1138 	sc->host_if.arg = sc;
1139 	sc->host_if.attach = esa_attach_codec;
1140 	sc->host_if.read = esa_read_codec;
1141 	sc->host_if.write = esa_write_codec;
1142 	sc->host_if.reset = esa_reset_codec;
1143 	sc->host_if.flags = esa_flags_codec;
1144 
1145 	if (ac97_attach(&sc->host_if, self, &sc->sc_lock) != 0) {
1146 		mutex_destroy(&sc->sc_lock);
1147 		mutex_destroy(&sc->sc_intr_lock);
1148 		return;
1149 	}
1150 
1151 	/* Attach audio interface. */
1152 	for (i = 0; i < ESA_NUM_VOICES; i++) {
1153 		sc->voice[i].parent = sc->sc_dev;
1154 		sc->voice[i].index = i;
1155 		sc->sc_audiodev[i] =
1156 		    audio_attach_mi(&esa_hw_if, &sc->voice[i], sc->sc_dev);
1157 	}
1158 
1159 	if (!pmf_device_register(self, esa_suspend, esa_resume))
1160 		aprint_error_dev(self, "couldn't establish power handler\n");
1161 
1162 	return;
1163 }
1164 
1165 void
1166 esa_childdet(device_t self, device_t child)
1167 {
1168 	struct esa_softc *sc = device_private(self);
1169 	int i;
1170 
1171 	for (i = 0; i < ESA_NUM_VOICES; i++) {
1172 		if (sc->sc_audiodev[i] == child) {
1173 			sc->sc_audiodev[i] = NULL;
1174 			break;
1175 		}
1176 	}
1177 	KASSERT(i < ESA_NUM_VOICES);
1178 }
1179 
1180 static int
1181 esa_detach(device_t self, int flags)
1182 {
1183 	struct esa_softc *sc;
1184 	int i;
1185 
1186 	sc = device_private(self);
1187 	for (i = 0; i < ESA_NUM_VOICES; i++) {
1188 		if (sc->sc_audiodev[i] != NULL)
1189 			config_detach(sc->sc_audiodev[i], flags);
1190 	}
1191 
1192 	if (sc->sc_ih != NULL)
1193 		pci_intr_disestablish(sc->sc_pct, sc->sc_ih);
1194 	if (sc->sc_ios)
1195 		bus_space_unmap(sc->sc_iot, sc->sc_ioh, sc->sc_ios);
1196 
1197 	kmem_free(sc->savemem, sc->savememsz);
1198 	mutex_destroy(&sc->sc_lock);
1199 	mutex_destroy(&sc->sc_intr_lock);
1200 
1201 	return 0;
1202 }
1203 
1204 static uint16_t
1205 esa_read_assp(struct esa_softc *sc, uint16_t region, uint16_t index)
1206 {
1207 	uint16_t data;
1208 	bus_space_tag_t iot;
1209 	bus_space_handle_t ioh;
1210 
1211 	iot = sc->sc_iot;
1212 	ioh = sc->sc_ioh;
1213 	bus_space_write_2(iot, ioh, ESA_DSP_PORT_MEMORY_TYPE,
1214 	    region & ESA_MEMTYPE_MASK);
1215 	bus_space_write_2(iot, ioh, ESA_DSP_PORT_MEMORY_INDEX, index);
1216 	data = bus_space_read_2(iot, ioh, ESA_DSP_PORT_MEMORY_DATA);
1217 
1218 	return data;
1219 }
1220 
1221 static void
1222 esa_write_assp(struct esa_softc *sc, uint16_t region, uint16_t index,
1223 	       uint16_t data)
1224 {
1225 	bus_space_tag_t iot;
1226 	bus_space_handle_t ioh;
1227 
1228 	iot = sc->sc_iot;
1229 	ioh = sc->sc_ioh;
1230 	bus_space_write_2(iot, ioh, ESA_DSP_PORT_MEMORY_TYPE,
1231 	    region & ESA_MEMTYPE_MASK);
1232 	bus_space_write_2(iot, ioh, ESA_DSP_PORT_MEMORY_INDEX, index);
1233 	bus_space_write_2(iot, ioh, ESA_DSP_PORT_MEMORY_DATA, data);
1234 
1235 	return;
1236 }
1237 
1238 static int
1239 esa_init_codec(struct esa_softc *sc)
1240 {
1241 	bus_space_tag_t iot;
1242 	bus_space_handle_t ioh;
1243 	uint32_t data;
1244 
1245 	iot = sc->sc_iot;
1246 	ioh = sc->sc_ioh;
1247 	data = bus_space_read_1(iot, ioh, ESA_CODEC_COMMAND);
1248 
1249 	return (data & 0x1) ? 0 : 1;
1250 }
1251 
1252 static int
1253 esa_attach_codec(void *aux, struct ac97_codec_if *codec_if)
1254 {
1255 	struct esa_softc *sc;
1256 
1257 	sc = aux;
1258 	sc->codec_if = codec_if;
1259 
1260 	return 0;
1261 }
1262 
1263 static int
1264 esa_read_codec(void *aux, uint8_t reg, uint16_t *result)
1265 {
1266 	struct esa_softc *sc;
1267 	bus_space_tag_t iot;
1268 	bus_space_handle_t ioh;
1269 
1270 	sc = aux;
1271 	iot = sc->sc_iot;
1272 	ioh = sc->sc_ioh;
1273 	if (esa_wait(sc))
1274 		aprint_error_dev(sc->sc_dev, "esa_read_codec: timed out\n");
1275 	bus_space_write_1(iot, ioh, ESA_CODEC_COMMAND, (reg & 0x7f) | 0x80);
1276 	delay(50);
1277 	if (esa_wait(sc))
1278 		aprint_error_dev(sc->sc_dev, "esa_read_codec: timed out\n");
1279 	*result = bus_space_read_2(iot, ioh, ESA_CODEC_DATA);
1280 
1281 	return 0;
1282 }
1283 
1284 static int
1285 esa_write_codec(void *aux, uint8_t reg, uint16_t data)
1286 {
1287 	struct esa_softc *sc;
1288 	bus_space_tag_t iot;
1289 	bus_space_handle_t ioh;
1290 
1291 	sc = aux;
1292 	iot = sc->sc_iot;
1293 	ioh = sc->sc_ioh;
1294 	if (esa_wait(sc)) {
1295 		aprint_error_dev(sc->sc_dev, "esa_write_codec: timed out\n");
1296 		return -1;
1297 	}
1298 	bus_space_write_2(iot, ioh, ESA_CODEC_DATA, data);
1299 	bus_space_write_1(iot, ioh, ESA_CODEC_COMMAND, reg & 0x7f);
1300 	delay(50);
1301 
1302 	return 0;
1303 }
1304 
1305 static int
1306 esa_reset_codec(void *aux)
1307 {
1308 
1309 	return 0;
1310 }
1311 
1312 static enum ac97_host_flags
1313 esa_flags_codec(void *aux)
1314 {
1315 	struct esa_softc *sc;
1316 
1317 	sc = aux;
1318 	return sc->codec_flags;
1319 }
1320 
1321 static int
1322 esa_wait(struct esa_softc *sc)
1323 {
1324 	int i, val;
1325 	bus_space_tag_t iot;
1326 	bus_space_handle_t ioh;
1327 
1328 	iot = sc->sc_iot;
1329 	ioh = sc->sc_ioh;
1330 	for (i = 0; i < 20; i++) {
1331 		val = bus_space_read_1(iot, ioh, ESA_CODEC_STATUS);
1332 		if ((val & 1) == 0)
1333 			return 0;
1334 		delay(2);
1335 	}
1336 
1337 	return -1;
1338 }
1339 
1340 static int
1341 esa_init(struct esa_softc *sc)
1342 {
1343 	struct esa_voice *vc;
1344 	bus_space_tag_t iot;
1345 	bus_space_handle_t ioh;
1346 	pcitag_t tag;
1347 	pci_chipset_tag_t pc;
1348 	uint32_t data, i, size;
1349 	uint8_t reset_state;
1350 	int data_bytes;
1351 
1352 	iot = sc->sc_iot;
1353 	ioh = sc->sc_ioh;
1354 	tag = sc->sc_tag;
1355 	pc = sc->sc_pct;
1356 	data_bytes = (((ESA_MINISRC_TMP_BUFFER_SIZE & ~1) +
1357 	    (ESA_MINISRC_IN_BUFFER_SIZE & ~1) +
1358 	    (ESA_MINISRC_OUT_BUFFER_SIZE & ~1) + 4) + 255) & ~255;
1359 
1360 	mutex_spin_enter(&sc->sc_intr_lock);
1361 
1362 	/* Disable legacy emulation */
1363 	data = pci_conf_read(pc, tag, PCI_LEGACY_AUDIO_CTRL);
1364 	data |= DISABLE_LEGACY;
1365 	pci_conf_write(pc, tag, PCI_LEGACY_AUDIO_CTRL, data);
1366 
1367 	esa_config(sc);
1368 
1369 	reset_state = esa_assp_halt(sc);
1370 
1371 	esa_init_codec(sc);
1372 	esa_codec_reset(sc);
1373 
1374 	/* Zero kernel and mixer data */
1375 	size = ESA_REV_B_DATA_MEMORY_UNIT_LENGTH * ESA_NUM_UNITS_KERNEL_DATA;
1376 	for (i = 0; i < size / 2; i++) {
1377 		esa_write_assp(sc, ESA_MEMTYPE_INTERNAL_DATA,
1378 		    ESA_KDATA_BASE_ADDR + i, 0);
1379 		esa_write_assp(sc, ESA_MEMTYPE_INTERNAL_DATA,
1380 		    ESA_KDATA_BASE_ADDR2 + i, 0);
1381 	}
1382 
1383 	/* Init DMA pointer */
1384 	esa_write_assp(sc, ESA_MEMTYPE_INTERNAL_DATA, ESA_KDATA_CURRENT_DMA,
1385 	    ESA_KDATA_DMA_XFER0);
1386 
1387 	/* Write kernel code into memory */
1388 	size = sizeof(esa_assp_kernel_image);
1389 	for (i = 0; i < size / 2; i++)
1390 		esa_write_assp(sc, ESA_MEMTYPE_INTERNAL_CODE,
1391 		    ESA_REV_B_CODE_MEMORY_BEGIN + i, esa_assp_kernel_image[i]);
1392 
1393 	size = sizeof(esa_assp_minisrc_image);
1394 	for (i = 0; i < size / 2; i++)
1395 		esa_write_assp(sc, ESA_MEMTYPE_INTERNAL_CODE, 0x400 + i,
1396 		    esa_assp_minisrc_image[i]);
1397 
1398 	/* Write the coefficients for the low pass filter */
1399 	size = sizeof(esa_minisrc_lpf_image);
1400 	for (i = 0; i < size / 2; i++)
1401 		esa_write_assp(sc, ESA_MEMTYPE_INTERNAL_CODE,
1402 		    0x400 + ESA_MINISRC_COEF_LOC + i, esa_minisrc_lpf_image[i]);
1403 	esa_write_assp(sc, ESA_MEMTYPE_INTERNAL_CODE,
1404 	    0x400 + ESA_MINISRC_COEF_LOC + size, 0x8000);
1405 	esa_write_assp(sc, ESA_MEMTYPE_INTERNAL_DATA, ESA_KDATA_TASK0, 0x400);
1406 	/* Init the mixer number */
1407 	esa_write_assp(sc, ESA_MEMTYPE_INTERNAL_DATA,
1408 	     ESA_KDATA_MIXER_TASK_NUMBER, 0);
1409 	/* Extreme kernel master volume */
1410 	esa_write_assp(sc, ESA_MEMTYPE_INTERNAL_DATA,
1411 	    ESA_KDATA_DAC_LEFT_VOLUME, ESA_ARB_VOLUME);
1412 	esa_write_assp(sc, ESA_MEMTYPE_INTERNAL_DATA,
1413 	    ESA_KDATA_DAC_RIGHT_VOLUME, ESA_ARB_VOLUME);
1414 
1415 	if (esa_amp_enable(sc))
1416 		return -1;
1417 
1418 	/* Zero entire DAC/ADC area */
1419 	for (i = 0x1100; i < 0x1c00; i++)
1420 		esa_write_assp(sc, ESA_MEMTYPE_INTERNAL_DATA, i, 0);
1421 
1422 	/* set some sane defaults */
1423 	for (i = 0; i < ESA_NUM_VOICES; i++) {
1424 		vc = &sc->voice[i];
1425 		vc->play.data_offset = ESA_DAC_DATA + (data_bytes * i);
1426 		vc->rec.data_offset = ESA_DAC_DATA + (data_bytes * i * 2);
1427 	}
1428 
1429 	esa_enable_interrupts(sc);
1430 
1431 	bus_space_write_1(iot, ioh, ESA_DSP_PORT_CONTROL_REG_B,
1432 	    reset_state | ESA_REGB_ENABLE_RESET);
1433 
1434 	mutex_spin_exit(&sc->sc_intr_lock);
1435 
1436 	return 0;
1437 }
1438 
1439 static void
1440 esa_config(struct esa_softc *sc)
1441 {
1442 	bus_space_tag_t iot;
1443 	bus_space_handle_t ioh;
1444 	pcitag_t tag;
1445 	pci_chipset_tag_t pc;
1446 	uint32_t data;
1447 
1448 	iot = sc->sc_iot;
1449 	ioh = sc->sc_ioh;
1450 	tag = sc->sc_tag;
1451 	pc = sc->sc_pct;
1452 
1453 	data = pci_conf_read(pc, tag, ESA_PCI_ALLEGRO_CONFIG);
1454 	data &= ESA_REDUCED_DEBOUNCE;
1455 	data |= ESA_PM_CTRL_ENABLE | ESA_CLK_DIV_BY_49 | ESA_USE_PCI_TIMING;
1456 	pci_conf_write(pc, tag, ESA_PCI_ALLEGRO_CONFIG, data);
1457 
1458 	bus_space_write_1(iot, ioh, ESA_ASSP_CONTROL_B, ESA_RESET_ASSP);
1459 	data = pci_conf_read(pc, tag, ESA_PCI_ALLEGRO_CONFIG);
1460 	data &= ~ESA_INT_CLK_SELECT;
1461 	if (sc->type == ESS_MAESTRO3) {
1462 		data &= ~ESA_INT_CLK_MULT_ENABLE;
1463 		data |= ESA_INT_CLK_SRC_NOT_PCI;
1464 	}
1465 	data &= ~(ESA_CLK_MULT_MODE_SELECT | ESA_CLK_MULT_MODE_SELECT_2);
1466 	pci_conf_write(pc, tag, ESA_PCI_ALLEGRO_CONFIG, data);
1467 
1468 	if (sc->type == ESS_ALLEGRO1) {
1469 		data = pci_conf_read(pc, tag, ESA_PCI_USER_CONFIG);
1470 		data |= ESA_IN_CLK_12MHZ_SELECT;
1471 		pci_conf_write(pc, tag, ESA_PCI_USER_CONFIG, data);
1472 	}
1473 
1474 	data = bus_space_read_1(iot, ioh, ESA_ASSP_CONTROL_A);
1475 	data &= ~(ESA_DSP_CLK_36MHZ_SELECT | ESA_ASSP_CLK_49MHZ_SELECT);
1476 	data |= ESA_ASSP_CLK_49MHZ_SELECT;	/* XXX: Assumes 49MHz DSP */
1477 	data |= ESA_ASSP_0_WS_ENABLE;
1478 	bus_space_write_1(iot, ioh, ESA_ASSP_CONTROL_A, data);
1479 
1480 	bus_space_write_1(iot, ioh, ESA_ASSP_CONTROL_B, ESA_RUN_ASSP);
1481 
1482 	return;
1483 }
1484 
1485 static uint8_t
1486 esa_assp_halt(struct esa_softc *sc)
1487 {
1488 	bus_space_tag_t iot;
1489 	bus_space_handle_t ioh;
1490 	uint8_t data, reset_state;
1491 
1492 	iot = sc->sc_iot;
1493 	ioh = sc->sc_ioh;
1494 	data = bus_space_read_1(iot, ioh, ESA_DSP_PORT_CONTROL_REG_B);
1495 	reset_state = data & ~ESA_REGB_STOP_CLOCK;
1496 	delay(10000);
1497 	bus_space_write_1(iot, ioh, ESA_DSP_PORT_CONTROL_REG_B,
1498 			reset_state & ~ESA_REGB_ENABLE_RESET);
1499 	delay(10000);
1500 
1501 	return reset_state;
1502 }
1503 
1504 static void
1505 esa_codec_reset(struct esa_softc *sc)
1506 {
1507 	bus_space_tag_t iot;
1508 	bus_space_handle_t ioh;
1509 	uint16_t data, dir;
1510 	int retry;
1511 
1512 	iot = sc->sc_iot;
1513 	ioh = sc->sc_ioh;
1514 	retry = 0;
1515 	do {
1516 		data = bus_space_read_2(iot, ioh, ESA_GPIO_DIRECTION);
1517 		dir = data | 0x10; /* assuming pci bus master? */
1518 
1519 		/* remote codec config */
1520 		data = bus_space_read_2(iot, ioh, ESA_RING_BUS_CTRL_B);
1521 		bus_space_write_2(iot, ioh, ESA_RING_BUS_CTRL_B,
1522 		    data & ~ESA_SECOND_CODEC_ID_MASK);
1523 		data = bus_space_read_2(iot, ioh, ESA_SDO_OUT_DEST_CTRL);
1524 		bus_space_write_2(iot, ioh, ESA_SDO_OUT_DEST_CTRL,
1525 		    data & ~ESA_COMMAND_ADDR_OUT);
1526 		data = bus_space_read_2(iot, ioh, ESA_SDO_IN_DEST_CTRL);
1527 		bus_space_write_2(iot, ioh, ESA_SDO_IN_DEST_CTRL,
1528 		    data & ~ESA_STATUS_ADDR_IN);
1529 
1530 		bus_space_write_2(iot, ioh, ESA_RING_BUS_CTRL_A,
1531 				  ESA_IO_SRAM_ENABLE);
1532 		delay(20);
1533 
1534 		bus_space_write_2(iot, ioh, ESA_GPIO_DIRECTION,
1535 		    dir & ~ESA_GPO_PRIMARY_AC97);
1536 		bus_space_write_2(iot, ioh, ESA_GPIO_MASK,
1537 				  ~ESA_GPO_PRIMARY_AC97);
1538 		bus_space_write_2(iot, ioh, ESA_GPIO_DATA, 0);
1539 		bus_space_write_2(iot, ioh, ESA_GPIO_DIRECTION,
1540 		    dir | ESA_GPO_PRIMARY_AC97);
1541 		delay(sc->delay1 * 1000);
1542 		bus_space_write_2(iot, ioh, ESA_GPIO_DATA,
1543 				  ESA_GPO_PRIMARY_AC97);
1544 		delay(5);
1545 		bus_space_write_2(iot, ioh, ESA_RING_BUS_CTRL_A,
1546 		    ESA_IO_SRAM_ENABLE | ESA_SERIAL_AC_LINK_ENABLE);
1547 		bus_space_write_2(iot, ioh, ESA_GPIO_MASK, ~0);
1548 		delay(sc->delay2 * 1000);
1549 
1550 		esa_read_codec(sc, 0x7c, &data);
1551 		if ((data == 0) || (data == 0xffff)) {
1552 			retry++;
1553 			if (retry > 3) {
1554 				aprint_error_dev(sc->sc_dev,
1555 				    "esa_codec_reset: failed\n");
1556 				break;
1557 			}
1558 			aprint_normal_dev(sc->sc_dev,
1559 			    "esa_codec_reset: retrying\n");
1560 		} else
1561 			retry = 0;
1562 	} while (retry);
1563 
1564 	return;
1565 }
1566 
1567 static int
1568 esa_amp_enable(struct esa_softc *sc)
1569 {
1570 	bus_space_tag_t iot;
1571 	bus_space_handle_t ioh;
1572 	uint32_t gpo, polarity_port, polarity;
1573 	uint16_t data;
1574 
1575 	iot = sc->sc_iot;
1576 	ioh = sc->sc_ioh;
1577 	switch (sc->type) {
1578 	case ESS_ALLEGRO1:
1579 		polarity_port = 0x1800;
1580 		break;
1581 	case ESS_MAESTRO3:
1582 		polarity_port = 0x1100;
1583 		break;
1584 	default:
1585 		aprint_error_dev(sc->sc_dev,
1586 		    "esa_amp_enable: Unknown chip type!!!\n");
1587 		return 1;
1588 	}
1589 
1590 	gpo = (polarity_port >> 8) & 0x0f;
1591 	polarity = polarity_port >> 12;
1592 	polarity = !polarity;	/* Enable */
1593 	polarity = polarity << gpo;
1594 	gpo = 1 << gpo;
1595 	bus_space_write_2(iot, ioh, ESA_GPIO_MASK, ~gpo);
1596 	data = bus_space_read_2(iot, ioh, ESA_GPIO_DIRECTION);
1597 	bus_space_write_2(iot, ioh, ESA_GPIO_DIRECTION, data | gpo);
1598 	data = ESA_GPO_SECONDARY_AC97 | ESA_GPO_PRIMARY_AC97 | polarity;
1599 	bus_space_write_2(iot, ioh, ESA_GPIO_DATA, data);
1600 	bus_space_write_2(iot, ioh, ESA_GPIO_MASK, ~0);
1601 
1602 	return 0;
1603 }
1604 
1605 static void
1606 esa_enable_interrupts(struct esa_softc *sc)
1607 {
1608 	bus_space_tag_t iot;
1609 	bus_space_handle_t ioh;
1610 	uint8_t data;
1611 
1612 	iot = sc->sc_iot;
1613 	ioh = sc->sc_ioh;
1614 	bus_space_write_2(iot, ioh, ESA_HOST_INT_CTRL,
1615 	    ESA_ASSP_INT_ENABLE | ESA_HV_INT_ENABLE);
1616 	data = bus_space_read_1(iot, ioh, ESA_ASSP_CONTROL_C);
1617 	bus_space_write_1(iot, ioh, ESA_ASSP_CONTROL_C,
1618 	    data | ESA_ASSP_HOST_INT_ENABLE);
1619 }
1620 
1621 /*
1622  * List management
1623  */
1624 static int
1625 esa_add_list(struct esa_voice *vc, struct esa_list *el,
1626 	     uint16_t val, int index)
1627 {
1628 	struct esa_softc *sc;
1629 
1630 	sc = device_private(vc->parent);
1631 	el->indexmap[index] = el->currlen;
1632 	esa_write_assp(sc, ESA_MEMTYPE_INTERNAL_DATA,
1633 		       el->mem_addr + el->currlen,
1634 		       val);
1635 
1636 	return el->currlen++;
1637 }
1638 
1639 static void
1640 esa_remove_list(struct esa_voice *vc, struct esa_list *el, int index)
1641 {
1642 	struct esa_softc *sc;
1643 	uint16_t val;
1644 	int lastindex;
1645 	int vindex;
1646 	int i;
1647 
1648 	sc = device_private(vc->parent);
1649 	lastindex = el->currlen - 1;
1650 	vindex = el->indexmap[index];
1651 
1652 	/* reset our virtual index */
1653 	el->indexmap[index] = -1;
1654 
1655 	if (vindex != lastindex) {
1656 		val = esa_read_assp(sc, ESA_MEMTYPE_INTERNAL_DATA,
1657 				    el->mem_addr + lastindex);
1658 		esa_write_assp(sc, ESA_MEMTYPE_INTERNAL_DATA,
1659 			       el->mem_addr + vindex,
1660 			       val);
1661 		for (i = 0; i < ESA_NUM_VOICES * 2; i++)
1662 			if (el->indexmap[i] == lastindex)
1663 				break;
1664 		if (i >= ESA_NUM_VOICES * 2)
1665 			aprint_error_dev(sc->sc_dev,
1666 			    "esa_remove_list: invalid task index\n");
1667 		else
1668 			el->indexmap[i] = vindex;
1669 	}
1670 
1671 	esa_write_assp(sc, ESA_MEMTYPE_INTERNAL_DATA,
1672 		       el->mem_addr + lastindex, 0);
1673 	el->currlen--;
1674 
1675 	return;
1676 }
1677 
1678 static bool
1679 esa_suspend(device_t dv, const pmf_qual_t *qual)
1680 {
1681 	struct esa_softc *sc = device_private(dv);
1682 	bus_space_tag_t iot = sc->sc_iot;
1683 	bus_space_handle_t ioh = sc->sc_ioh;
1684 	int i, index;
1685 
1686 	index = 0;
1687 
1688 	mutex_enter(&sc->sc_lock);
1689 	mutex_spin_enter(&sc->sc_intr_lock);
1690 
1691 	bus_space_write_2(iot, ioh, ESA_HOST_INT_CTRL, 0);
1692 	bus_space_write_1(iot, ioh, ESA_ASSP_CONTROL_C, 0);
1693 
1694 	esa_assp_halt(sc);
1695 
1696 	/* Save ASSP state */
1697 	for (i = ESA_REV_B_CODE_MEMORY_BEGIN; i <= ESA_REV_B_CODE_MEMORY_END;
1698 	    i++)
1699 		sc->savemem[index++] = esa_read_assp(sc,
1700 		    ESA_MEMTYPE_INTERNAL_CODE, i);
1701 	for (i = ESA_REV_B_DATA_MEMORY_BEGIN; i <= ESA_REV_B_DATA_MEMORY_END;
1702 	    i++)
1703 		sc->savemem[index++] = esa_read_assp(sc,
1704 		    ESA_MEMTYPE_INTERNAL_DATA, i);
1705 
1706 	mutex_spin_exit(&sc->sc_intr_lock);
1707 	mutex_exit(&sc->sc_lock);
1708 
1709 	return true;
1710 }
1711 
1712 static bool
1713 esa_resume(device_t dv, const pmf_qual_t *qual)
1714 {
1715 	struct esa_softc *sc = device_private(dv);
1716 	bus_space_tag_t iot = sc->sc_iot;
1717 	bus_space_handle_t ioh = sc->sc_ioh;
1718 	int i, index;
1719 	uint8_t reset_state;
1720 	pcireg_t data;
1721 
1722 	index = 0;
1723 
1724 	delay(10000);
1725 
1726 	mutex_enter(&sc->sc_lock);
1727 	mutex_spin_enter(&sc->sc_intr_lock);
1728 
1729 	data = pci_conf_read(sc->sc_pct, sc->sc_tag, PCI_LEGACY_AUDIO_CTRL);
1730 	pci_conf_write(sc->sc_pct, sc->sc_tag, PCI_LEGACY_AUDIO_CTRL,
1731 	    data | DISABLE_LEGACY);
1732 
1733 	bus_space_write_4(iot, ioh, ESA_PCI_ACPI_CONTROL, ESA_PCI_ACPI_D0);
1734 
1735 	esa_config(sc);
1736 
1737 	reset_state = esa_assp_halt(sc);
1738 
1739 	esa_init_codec(sc);
1740 	esa_codec_reset(sc);
1741 
1742 	/* restore ASSP */
1743 	for (i = ESA_REV_B_CODE_MEMORY_BEGIN; i <= ESA_REV_B_CODE_MEMORY_END;
1744 	    i++)
1745 		esa_write_assp(sc, ESA_MEMTYPE_INTERNAL_CODE, i,
1746 		    sc->savemem[index++]);
1747 	for (i = ESA_REV_B_DATA_MEMORY_BEGIN; i <= ESA_REV_B_DATA_MEMORY_END;
1748 	    i++)
1749 		esa_write_assp(sc, ESA_MEMTYPE_INTERNAL_DATA, i,
1750 		    sc->savemem[index++]);
1751 
1752 	esa_write_assp(sc, ESA_MEMTYPE_INTERNAL_DATA, ESA_KDATA_DMA_ACTIVE, 0);
1753 	bus_space_write_1(iot, ioh, ESA_DSP_PORT_CONTROL_REG_B,
1754 	    reset_state | ESA_REGB_ENABLE_RESET);
1755 
1756 	esa_enable_interrupts(sc);
1757 	esa_amp_enable(sc);
1758 
1759 	mutex_spin_exit(&sc->sc_intr_lock);
1760 
1761 	/* Finally, power up AC97 codec */
1762 	delay(1000);
1763 
1764 	sc->codec_if->vtbl->restore_ports(sc->codec_if);
1765 
1766 	mutex_exit(&sc->sc_lock);
1767 
1768 	return true;
1769 }
1770 
1771 static uint32_t
1772 esa_get_pointer(struct esa_softc *sc, struct esa_channel *ch)
1773 {
1774 	uint16_t hi, lo;
1775 	uint32_t addr;
1776 	int data_offset;
1777 
1778 	data_offset = ch->data_offset;
1779 	hi = esa_read_assp(sc, ESA_MEMTYPE_INTERNAL_DATA, data_offset +
1780 	    ESA_CDATA_HOST_SRC_CURRENTH);
1781 	lo = esa_read_assp(sc, ESA_MEMTYPE_INTERNAL_DATA, data_offset +
1782 	    ESA_CDATA_HOST_SRC_CURRENTL);
1783 
1784 	addr = lo | ((uint32_t)hi << 16);
1785 	return (addr - ch->start);
1786 }
1787 
1788 static paddr_t
1789 esa_mappage(void *addr, void *mem, off_t off, int prot)
1790 {
1791 	struct esa_voice *vc;
1792 	struct esa_softc *sc;
1793 	struct esa_dma *p;
1794 
1795 	vc = addr;
1796 	sc = device_private(vc->parent);
1797 	if (off < 0)
1798 		return -1;
1799 	for (p = vc->dma; p && KERNADDR(p) != mem; p = p->next)
1800 		continue;
1801 	if (p == NULL)
1802 		return -1;
1803 	return bus_dmamem_mmap(sc->sc_dmat, p->segs, p->nsegs,
1804 			       off, prot, BUS_DMA_WAITOK);
1805 }
1806 
1807 static void
1808 esa_get_locks(void *addr, kmutex_t **intr, kmutex_t **proc)
1809 {
1810 	struct esa_voice *vc;
1811 	struct esa_softc *sc;
1812 
1813 	vc = addr;
1814 	sc = device_private(vc->parent);
1815 
1816 	*intr = &sc->sc_intr_lock;
1817 	*proc = &sc->sc_lock;
1818 }
1819