xref: /netbsd-src/sys/dev/pci/esa.c (revision e39ef1d61eee3ccba837ee281f1e098c864487aa)
1 /* $NetBSD: esa.c,v 1.57 2011/12/03 08:20:12 ryo 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 1.57 2011/12/03 08:20:12 ryo 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 	char devinfo[256];
1012 	int revision, i, error;
1013 
1014 	sc = device_private(self);
1015 	pa = (struct pci_attach_args *)aux;
1016 	tag = pa->pa_tag;
1017 	pc = pa->pa_pc;
1018 	aprint_naive(": Audio controller\n");
1019 
1020 	pci_devinfo(pa->pa_id, pa->pa_class, 0, devinfo, sizeof(devinfo));
1021 	revision = PCI_REVISION(pa->pa_class);
1022 	aprint_normal(": %s (rev. 0x%02x)\n", devinfo, revision);
1023 
1024 	for (card = esa_card_types; card->pci_vendor_id; card++)
1025 		if (PCI_VENDOR(pa->pa_id) == card->pci_vendor_id &&
1026 		    PCI_PRODUCT(pa->pa_id) == card->pci_product_id) {
1027 			sc->type = card->type;
1028 			sc->delay1 = card->delay1;
1029 			sc->delay2 = card->delay2;
1030 			break;
1031 		}
1032 
1033 	data = pci_conf_read(pc, tag, PCI_COMMAND_STATUS_REG);
1034 	data |= (PCI_COMMAND_IO_ENABLE | PCI_COMMAND_MEM_ENABLE
1035 	    | PCI_COMMAND_MASTER_ENABLE);
1036 	pci_conf_write(pc, tag, PCI_COMMAND_STATUS_REG, data);
1037 
1038 	/* Map I/O register */
1039 	if (pci_mapreg_map(pa, PCI_CBIO, PCI_MAPREG_TYPE_IO, 0,
1040 	    &sc->sc_iot, &sc->sc_ioh, &sc->sc_iob, &sc->sc_ios)) {
1041 		aprint_error_dev(sc->sc_dev, "can't map i/o space\n");
1042 		return;
1043 	}
1044 
1045 	/* Initialize softc */
1046 	sc->sc_dev = self;
1047 	sc->sc_tag = tag;
1048 	sc->sc_pct = pc;
1049 	sc->sc_dmat = pa->pa_dmat;
1050 
1051 	mutex_init(&sc->sc_lock, MUTEX_DEFAULT, IPL_NONE);
1052 	mutex_init(&sc->sc_intr_lock, MUTEX_DEFAULT, IPL_AUDIO);
1053 
1054 	/* Map and establish an interrupt */
1055 	if (pci_intr_map(pa, &ih)) {
1056 		aprint_error_dev(sc->sc_dev, "can't map interrupt\n");
1057 		mutex_destroy(&sc->sc_lock);
1058 		mutex_destroy(&sc->sc_intr_lock);
1059 		return;
1060 	}
1061 	intrstr = pci_intr_string(pc, ih);
1062 	sc->sc_ih = pci_intr_establish(pc, ih, IPL_AUDIO, esa_intr, sc);
1063 	if (sc->sc_ih == NULL) {
1064 		aprint_error_dev(sc->sc_dev, "can't establish interrupt");
1065 		if (intrstr != NULL)
1066 			aprint_error(" at %s", intrstr);
1067 		aprint_error("\n");
1068 		mutex_destroy(&sc->sc_lock);
1069 		mutex_destroy(&sc->sc_intr_lock);
1070 		return;
1071 	}
1072 	aprint_normal_dev(sc->sc_dev, "interrupting at %s\n", intrstr);
1073 
1074 	/* power up chip */
1075 	if ((error = pci_activate(pa->pa_pc, pa->pa_tag, self,
1076 	    pci_activate_null)) && error != EOPNOTSUPP) {
1077 		aprint_error_dev(sc->sc_dev, "cannot activate %d\n", error);
1078 		mutex_destroy(&sc->sc_lock);
1079 		mutex_destroy(&sc->sc_intr_lock);
1080 		return;
1081 	}
1082 
1083 	/* Init chip */
1084 	if (esa_init(sc) == -1) {
1085 		aprint_error_dev(sc->sc_dev,
1086 		    "esa_attach: unable to initialize the card\n");
1087 		mutex_destroy(&sc->sc_lock);
1088 		mutex_destroy(&sc->sc_intr_lock);
1089 		return;
1090 	}
1091 
1092 	/* create suspend save area */
1093 	sc->savememsz = sizeof(uint16_t) * (ESA_REV_B_CODE_MEMORY_LENGTH
1094 	    + ESA_REV_B_DATA_MEMORY_LENGTH + 1);
1095 	sc->savemem = (uint16_t *)kmem_zalloc(sc->savememsz, KM_SLEEP);
1096 	if (sc->savemem == NULL) {
1097 		aprint_error_dev(sc->sc_dev,
1098 		    "unable to allocate suspend buffer\n");
1099 		mutex_destroy(&sc->sc_lock);
1100 		mutex_destroy(&sc->sc_intr_lock);
1101 		return;
1102 	}
1103 
1104 	/*
1105 	 * Every card I've seen has had their channels swapped with respect
1106 	 * to the mixer. Ie:
1107 	 *  $ mixerctl -w outputs.master=0,191
1108 	 * Would result in the _right_ speaker being turned off.
1109 	 *
1110 	 * So, we will swap the left and right mixer channels to compensate
1111 	 * for this.
1112 	 *
1113 	 * XXX PR# 23620: The Dell C810 channels are not swapped. Match
1114 	 *     on revision ID for now; this is probably wrong.
1115 	 */
1116 	if (revision == 0x10 && sc->type == ESS_MAESTRO3)
1117 		sc->codec_flags = 0;
1118 	else
1119 		sc->codec_flags = AC97_HOST_SWAPPED_CHANNELS;
1120 
1121 	/* initialize list management structures */
1122 	sc->mixer_list.mem_addr = ESA_KDATA_MIXER_XFER0;
1123 	sc->mixer_list.max = ESA_MAX_VIRTUAL_MIXER_CHANNELS;
1124 	sc->adc1_list.mem_addr = ESA_KDATA_ADC1_XFER0;
1125 	sc->adc1_list.max = ESA_MAX_VIRTUAL_ADC1_CHANNELS;
1126 	sc->dma_list.mem_addr = ESA_KDATA_DMA_XFER0;
1127 	sc->dma_list.max = ESA_MAX_VIRTUAL_DMA_CHANNELS;
1128 	sc->msrc_list.mem_addr = ESA_KDATA_INSTANCE0_MINISRC;
1129 	sc->msrc_list.max = ESA_MAX_INSTANCE_MINISRC;
1130 
1131 	/* initialize index maps */
1132 	for (i = 0; i < ESA_NUM_VOICES * 2; i++) {
1133 		sc->mixer_list.indexmap[i] = -1;
1134 		sc->msrc_list.indexmap[i] = -1;
1135 		sc->dma_list.indexmap[i] = -1;
1136 		sc->adc1_list.indexmap[i] = -1;
1137 	}
1138 
1139 	/* Attach AC97 host interface */
1140 	sc->host_if.arg = sc;
1141 	sc->host_if.attach = esa_attach_codec;
1142 	sc->host_if.read = esa_read_codec;
1143 	sc->host_if.write = esa_write_codec;
1144 	sc->host_if.reset = esa_reset_codec;
1145 	sc->host_if.flags = esa_flags_codec;
1146 
1147 	if (ac97_attach(&sc->host_if, self, &sc->sc_lock) != 0) {
1148 		mutex_destroy(&sc->sc_lock);
1149 		mutex_destroy(&sc->sc_intr_lock);
1150 		return;
1151 	}
1152 
1153 	/* Attach audio interface. */
1154 	for (i = 0; i < ESA_NUM_VOICES; i++) {
1155 		sc->voice[i].parent = sc->sc_dev;
1156 		sc->voice[i].index = i;
1157 		sc->sc_audiodev[i] =
1158 		    audio_attach_mi(&esa_hw_if, &sc->voice[i], sc->sc_dev);
1159 	}
1160 
1161 	if (!pmf_device_register(self, esa_suspend, esa_resume))
1162 		aprint_error_dev(self, "couldn't establish power handler\n");
1163 
1164 	return;
1165 }
1166 
1167 void
1168 esa_childdet(device_t self, device_t child)
1169 {
1170 	struct esa_softc *sc = device_private(self);
1171 	int i;
1172 
1173 	for (i = 0; i < ESA_NUM_VOICES; i++) {
1174 		if (sc->sc_audiodev[i] == child) {
1175 			sc->sc_audiodev[i] = NULL;
1176 			break;
1177 		}
1178 	}
1179 	KASSERT(i < ESA_NUM_VOICES);
1180 }
1181 
1182 static int
1183 esa_detach(device_t self, int flags)
1184 {
1185 	struct esa_softc *sc;
1186 	int i;
1187 
1188 	sc = device_private(self);
1189 	for (i = 0; i < ESA_NUM_VOICES; i++) {
1190 		if (sc->sc_audiodev[i] != NULL)
1191 			config_detach(sc->sc_audiodev[i], flags);
1192 	}
1193 
1194 	if (sc->sc_ih != NULL)
1195 		pci_intr_disestablish(sc->sc_pct, sc->sc_ih);
1196 	if (sc->sc_ios)
1197 		bus_space_unmap(sc->sc_iot, sc->sc_ioh, sc->sc_ios);
1198 
1199 	kmem_free(sc->savemem, sc->savememsz);
1200 	mutex_destroy(&sc->sc_lock);
1201 	mutex_destroy(&sc->sc_intr_lock);
1202 
1203 	return 0;
1204 }
1205 
1206 static uint16_t
1207 esa_read_assp(struct esa_softc *sc, uint16_t region, uint16_t index)
1208 {
1209 	uint16_t data;
1210 	bus_space_tag_t iot;
1211 	bus_space_handle_t ioh;
1212 
1213 	iot = sc->sc_iot;
1214 	ioh = sc->sc_ioh;
1215 	bus_space_write_2(iot, ioh, ESA_DSP_PORT_MEMORY_TYPE,
1216 	    region & ESA_MEMTYPE_MASK);
1217 	bus_space_write_2(iot, ioh, ESA_DSP_PORT_MEMORY_INDEX, index);
1218 	data = bus_space_read_2(iot, ioh, ESA_DSP_PORT_MEMORY_DATA);
1219 
1220 	return data;
1221 }
1222 
1223 static void
1224 esa_write_assp(struct esa_softc *sc, uint16_t region, uint16_t index,
1225 	       uint16_t data)
1226 {
1227 	bus_space_tag_t iot;
1228 	bus_space_handle_t ioh;
1229 
1230 	iot = sc->sc_iot;
1231 	ioh = sc->sc_ioh;
1232 	bus_space_write_2(iot, ioh, ESA_DSP_PORT_MEMORY_TYPE,
1233 	    region & ESA_MEMTYPE_MASK);
1234 	bus_space_write_2(iot, ioh, ESA_DSP_PORT_MEMORY_INDEX, index);
1235 	bus_space_write_2(iot, ioh, ESA_DSP_PORT_MEMORY_DATA, data);
1236 
1237 	return;
1238 }
1239 
1240 static int
1241 esa_init_codec(struct esa_softc *sc)
1242 {
1243 	bus_space_tag_t iot;
1244 	bus_space_handle_t ioh;
1245 	uint32_t data;
1246 
1247 	iot = sc->sc_iot;
1248 	ioh = sc->sc_ioh;
1249 	data = bus_space_read_1(iot, ioh, ESA_CODEC_COMMAND);
1250 
1251 	return (data & 0x1) ? 0 : 1;
1252 }
1253 
1254 static int
1255 esa_attach_codec(void *aux, struct ac97_codec_if *codec_if)
1256 {
1257 	struct esa_softc *sc;
1258 
1259 	sc = aux;
1260 	sc->codec_if = codec_if;
1261 
1262 	return 0;
1263 }
1264 
1265 static int
1266 esa_read_codec(void *aux, uint8_t reg, uint16_t *result)
1267 {
1268 	struct esa_softc *sc;
1269 	bus_space_tag_t iot;
1270 	bus_space_handle_t ioh;
1271 
1272 	sc = aux;
1273 	iot = sc->sc_iot;
1274 	ioh = sc->sc_ioh;
1275 	if (esa_wait(sc))
1276 		aprint_error_dev(sc->sc_dev, "esa_read_codec: timed out\n");
1277 	bus_space_write_1(iot, ioh, ESA_CODEC_COMMAND, (reg & 0x7f) | 0x80);
1278 	delay(50);
1279 	if (esa_wait(sc))
1280 		aprint_error_dev(sc->sc_dev, "esa_read_codec: timed out\n");
1281 	*result = bus_space_read_2(iot, ioh, ESA_CODEC_DATA);
1282 
1283 	return 0;
1284 }
1285 
1286 static int
1287 esa_write_codec(void *aux, uint8_t reg, uint16_t data)
1288 {
1289 	struct esa_softc *sc;
1290 	bus_space_tag_t iot;
1291 	bus_space_handle_t ioh;
1292 
1293 	sc = aux;
1294 	iot = sc->sc_iot;
1295 	ioh = sc->sc_ioh;
1296 	if (esa_wait(sc)) {
1297 		aprint_error_dev(sc->sc_dev, "esa_write_codec: timed out\n");
1298 		return -1;
1299 	}
1300 	bus_space_write_2(iot, ioh, ESA_CODEC_DATA, data);
1301 	bus_space_write_1(iot, ioh, ESA_CODEC_COMMAND, reg & 0x7f);
1302 	delay(50);
1303 
1304 	return 0;
1305 }
1306 
1307 static int
1308 esa_reset_codec(void *aux)
1309 {
1310 
1311 	return 0;
1312 }
1313 
1314 static enum ac97_host_flags
1315 esa_flags_codec(void *aux)
1316 {
1317 	struct esa_softc *sc;
1318 
1319 	sc = aux;
1320 	return sc->codec_flags;
1321 }
1322 
1323 static int
1324 esa_wait(struct esa_softc *sc)
1325 {
1326 	int i, val;
1327 	bus_space_tag_t iot;
1328 	bus_space_handle_t ioh;
1329 
1330 	iot = sc->sc_iot;
1331 	ioh = sc->sc_ioh;
1332 	for (i = 0; i < 20; i++) {
1333 		val = bus_space_read_1(iot, ioh, ESA_CODEC_STATUS);
1334 		if ((val & 1) == 0)
1335 			return 0;
1336 		delay(2);
1337 	}
1338 
1339 	return -1;
1340 }
1341 
1342 static int
1343 esa_init(struct esa_softc *sc)
1344 {
1345 	struct esa_voice *vc;
1346 	bus_space_tag_t iot;
1347 	bus_space_handle_t ioh;
1348 	pcitag_t tag;
1349 	pci_chipset_tag_t pc;
1350 	uint32_t data, i, size;
1351 	uint8_t reset_state;
1352 	int data_bytes;
1353 
1354 	iot = sc->sc_iot;
1355 	ioh = sc->sc_ioh;
1356 	tag = sc->sc_tag;
1357 	pc = sc->sc_pct;
1358 	data_bytes = (((ESA_MINISRC_TMP_BUFFER_SIZE & ~1) +
1359 	    (ESA_MINISRC_IN_BUFFER_SIZE & ~1) +
1360 	    (ESA_MINISRC_OUT_BUFFER_SIZE & ~1) + 4) + 255) & ~255;
1361 
1362 	mutex_spin_enter(&sc->sc_intr_lock);
1363 
1364 	/* Disable legacy emulation */
1365 	data = pci_conf_read(pc, tag, PCI_LEGACY_AUDIO_CTRL);
1366 	data |= DISABLE_LEGACY;
1367 	pci_conf_write(pc, tag, PCI_LEGACY_AUDIO_CTRL, data);
1368 
1369 	esa_config(sc);
1370 
1371 	reset_state = esa_assp_halt(sc);
1372 
1373 	esa_init_codec(sc);
1374 	esa_codec_reset(sc);
1375 
1376 	/* Zero kernel and mixer data */
1377 	size = ESA_REV_B_DATA_MEMORY_UNIT_LENGTH * ESA_NUM_UNITS_KERNEL_DATA;
1378 	for (i = 0; i < size / 2; i++) {
1379 		esa_write_assp(sc, ESA_MEMTYPE_INTERNAL_DATA,
1380 		    ESA_KDATA_BASE_ADDR + i, 0);
1381 		esa_write_assp(sc, ESA_MEMTYPE_INTERNAL_DATA,
1382 		    ESA_KDATA_BASE_ADDR2 + i, 0);
1383 	}
1384 
1385 	/* Init DMA pointer */
1386 	esa_write_assp(sc, ESA_MEMTYPE_INTERNAL_DATA, ESA_KDATA_CURRENT_DMA,
1387 	    ESA_KDATA_DMA_XFER0);
1388 
1389 	/* Write kernel code into memory */
1390 	size = sizeof(esa_assp_kernel_image);
1391 	for (i = 0; i < size / 2; i++)
1392 		esa_write_assp(sc, ESA_MEMTYPE_INTERNAL_CODE,
1393 		    ESA_REV_B_CODE_MEMORY_BEGIN + i, esa_assp_kernel_image[i]);
1394 
1395 	size = sizeof(esa_assp_minisrc_image);
1396 	for (i = 0; i < size / 2; i++)
1397 		esa_write_assp(sc, ESA_MEMTYPE_INTERNAL_CODE, 0x400 + i,
1398 		    esa_assp_minisrc_image[i]);
1399 
1400 	/* Write the coefficients for the low pass filter */
1401 	size = sizeof(esa_minisrc_lpf_image);
1402 	for (i = 0; i < size / 2; i++)
1403 		esa_write_assp(sc, ESA_MEMTYPE_INTERNAL_CODE,
1404 		    0x400 + ESA_MINISRC_COEF_LOC + i, esa_minisrc_lpf_image[i]);
1405 	esa_write_assp(sc, ESA_MEMTYPE_INTERNAL_CODE,
1406 	    0x400 + ESA_MINISRC_COEF_LOC + size, 0x8000);
1407 	esa_write_assp(sc, ESA_MEMTYPE_INTERNAL_DATA, ESA_KDATA_TASK0, 0x400);
1408 	/* Init the mixer number */
1409 	esa_write_assp(sc, ESA_MEMTYPE_INTERNAL_DATA,
1410 	     ESA_KDATA_MIXER_TASK_NUMBER, 0);
1411 	/* Extreme kernel master volume */
1412 	esa_write_assp(sc, ESA_MEMTYPE_INTERNAL_DATA,
1413 	    ESA_KDATA_DAC_LEFT_VOLUME, ESA_ARB_VOLUME);
1414 	esa_write_assp(sc, ESA_MEMTYPE_INTERNAL_DATA,
1415 	    ESA_KDATA_DAC_RIGHT_VOLUME, ESA_ARB_VOLUME);
1416 
1417 	if (esa_amp_enable(sc))
1418 		return -1;
1419 
1420 	/* Zero entire DAC/ADC area */
1421 	for (i = 0x1100; i < 0x1c00; i++)
1422 		esa_write_assp(sc, ESA_MEMTYPE_INTERNAL_DATA, i, 0);
1423 
1424 	/* set some sane defaults */
1425 	for (i = 0; i < ESA_NUM_VOICES; i++) {
1426 		vc = &sc->voice[i];
1427 		vc->play.data_offset = ESA_DAC_DATA + (data_bytes * i);
1428 		vc->rec.data_offset = ESA_DAC_DATA + (data_bytes * i * 2);
1429 	}
1430 
1431 	esa_enable_interrupts(sc);
1432 
1433 	bus_space_write_1(iot, ioh, ESA_DSP_PORT_CONTROL_REG_B,
1434 	    reset_state | ESA_REGB_ENABLE_RESET);
1435 
1436 	mutex_spin_exit(&sc->sc_intr_lock);
1437 
1438 	return 0;
1439 }
1440 
1441 static void
1442 esa_config(struct esa_softc *sc)
1443 {
1444 	bus_space_tag_t iot;
1445 	bus_space_handle_t ioh;
1446 	pcitag_t tag;
1447 	pci_chipset_tag_t pc;
1448 	uint32_t data;
1449 
1450 	iot = sc->sc_iot;
1451 	ioh = sc->sc_ioh;
1452 	tag = sc->sc_tag;
1453 	pc = sc->sc_pct;
1454 
1455 	data = pci_conf_read(pc, tag, ESA_PCI_ALLEGRO_CONFIG);
1456 	data &= ESA_REDUCED_DEBOUNCE;
1457 	data |= ESA_PM_CTRL_ENABLE | ESA_CLK_DIV_BY_49 | ESA_USE_PCI_TIMING;
1458 	pci_conf_write(pc, tag, ESA_PCI_ALLEGRO_CONFIG, data);
1459 
1460 	bus_space_write_1(iot, ioh, ESA_ASSP_CONTROL_B, ESA_RESET_ASSP);
1461 	data = pci_conf_read(pc, tag, ESA_PCI_ALLEGRO_CONFIG);
1462 	data &= ~ESA_INT_CLK_SELECT;
1463 	if (sc->type == ESS_MAESTRO3) {
1464 		data &= ~ESA_INT_CLK_MULT_ENABLE;
1465 		data |= ESA_INT_CLK_SRC_NOT_PCI;
1466 	}
1467 	data &= ~(ESA_CLK_MULT_MODE_SELECT | ESA_CLK_MULT_MODE_SELECT_2);
1468 	pci_conf_write(pc, tag, ESA_PCI_ALLEGRO_CONFIG, data);
1469 
1470 	if (sc->type == ESS_ALLEGRO1) {
1471 		data = pci_conf_read(pc, tag, ESA_PCI_USER_CONFIG);
1472 		data |= ESA_IN_CLK_12MHZ_SELECT;
1473 		pci_conf_write(pc, tag, ESA_PCI_USER_CONFIG, data);
1474 	}
1475 
1476 	data = bus_space_read_1(iot, ioh, ESA_ASSP_CONTROL_A);
1477 	data &= ~(ESA_DSP_CLK_36MHZ_SELECT | ESA_ASSP_CLK_49MHZ_SELECT);
1478 	data |= ESA_ASSP_CLK_49MHZ_SELECT;	/* XXX: Assumes 49MHz DSP */
1479 	data |= ESA_ASSP_0_WS_ENABLE;
1480 	bus_space_write_1(iot, ioh, ESA_ASSP_CONTROL_A, data);
1481 
1482 	bus_space_write_1(iot, ioh, ESA_ASSP_CONTROL_B, ESA_RUN_ASSP);
1483 
1484 	return;
1485 }
1486 
1487 static uint8_t
1488 esa_assp_halt(struct esa_softc *sc)
1489 {
1490 	bus_space_tag_t iot;
1491 	bus_space_handle_t ioh;
1492 	uint8_t data, reset_state;
1493 
1494 	iot = sc->sc_iot;
1495 	ioh = sc->sc_ioh;
1496 	data = bus_space_read_1(iot, ioh, ESA_DSP_PORT_CONTROL_REG_B);
1497 	reset_state = data & ~ESA_REGB_STOP_CLOCK;
1498 	delay(10000);
1499 	bus_space_write_1(iot, ioh, ESA_DSP_PORT_CONTROL_REG_B,
1500 			reset_state & ~ESA_REGB_ENABLE_RESET);
1501 	delay(10000);
1502 
1503 	return reset_state;
1504 }
1505 
1506 static void
1507 esa_codec_reset(struct esa_softc *sc)
1508 {
1509 	bus_space_tag_t iot;
1510 	bus_space_handle_t ioh;
1511 	uint16_t data, dir;
1512 	int retry;
1513 
1514 	iot = sc->sc_iot;
1515 	ioh = sc->sc_ioh;
1516 	retry = 0;
1517 	do {
1518 		data = bus_space_read_2(iot, ioh, ESA_GPIO_DIRECTION);
1519 		dir = data | 0x10; /* assuming pci bus master? */
1520 
1521 		/* remote codec config */
1522 		data = bus_space_read_2(iot, ioh, ESA_RING_BUS_CTRL_B);
1523 		bus_space_write_2(iot, ioh, ESA_RING_BUS_CTRL_B,
1524 		    data & ~ESA_SECOND_CODEC_ID_MASK);
1525 		data = bus_space_read_2(iot, ioh, ESA_SDO_OUT_DEST_CTRL);
1526 		bus_space_write_2(iot, ioh, ESA_SDO_OUT_DEST_CTRL,
1527 		    data & ~ESA_COMMAND_ADDR_OUT);
1528 		data = bus_space_read_2(iot, ioh, ESA_SDO_IN_DEST_CTRL);
1529 		bus_space_write_2(iot, ioh, ESA_SDO_IN_DEST_CTRL,
1530 		    data & ~ESA_STATUS_ADDR_IN);
1531 
1532 		bus_space_write_2(iot, ioh, ESA_RING_BUS_CTRL_A,
1533 				  ESA_IO_SRAM_ENABLE);
1534 		delay(20);
1535 
1536 		bus_space_write_2(iot, ioh, ESA_GPIO_DIRECTION,
1537 		    dir & ~ESA_GPO_PRIMARY_AC97);
1538 		bus_space_write_2(iot, ioh, ESA_GPIO_MASK,
1539 				  ~ESA_GPO_PRIMARY_AC97);
1540 		bus_space_write_2(iot, ioh, ESA_GPIO_DATA, 0);
1541 		bus_space_write_2(iot, ioh, ESA_GPIO_DIRECTION,
1542 		    dir | ESA_GPO_PRIMARY_AC97);
1543 		delay(sc->delay1 * 1000);
1544 		bus_space_write_2(iot, ioh, ESA_GPIO_DATA,
1545 				  ESA_GPO_PRIMARY_AC97);
1546 		delay(5);
1547 		bus_space_write_2(iot, ioh, ESA_RING_BUS_CTRL_A,
1548 		    ESA_IO_SRAM_ENABLE | ESA_SERIAL_AC_LINK_ENABLE);
1549 		bus_space_write_2(iot, ioh, ESA_GPIO_MASK, ~0);
1550 		delay(sc->delay2 * 1000);
1551 
1552 		esa_read_codec(sc, 0x7c, &data);
1553 		if ((data == 0) || (data == 0xffff)) {
1554 			retry++;
1555 			if (retry > 3) {
1556 				aprint_error_dev(sc->sc_dev,
1557 				    "esa_codec_reset: failed\n");
1558 				break;
1559 			}
1560 			aprint_normal_dev(sc->sc_dev,
1561 			    "esa_codec_reset: retrying\n");
1562 		} else
1563 			retry = 0;
1564 	} while (retry);
1565 
1566 	return;
1567 }
1568 
1569 static int
1570 esa_amp_enable(struct esa_softc *sc)
1571 {
1572 	bus_space_tag_t iot;
1573 	bus_space_handle_t ioh;
1574 	uint32_t gpo, polarity_port, polarity;
1575 	uint16_t data;
1576 
1577 	iot = sc->sc_iot;
1578 	ioh = sc->sc_ioh;
1579 	switch (sc->type) {
1580 	case ESS_ALLEGRO1:
1581 		polarity_port = 0x1800;
1582 		break;
1583 	case ESS_MAESTRO3:
1584 		polarity_port = 0x1100;
1585 		break;
1586 	default:
1587 		aprint_error_dev(sc->sc_dev,
1588 		    "esa_amp_enable: Unknown chip type!!!\n");
1589 		return 1;
1590 	}
1591 
1592 	gpo = (polarity_port >> 8) & 0x0f;
1593 	polarity = polarity_port >> 12;
1594 	polarity = !polarity;	/* Enable */
1595 	polarity = polarity << gpo;
1596 	gpo = 1 << gpo;
1597 	bus_space_write_2(iot, ioh, ESA_GPIO_MASK, ~gpo);
1598 	data = bus_space_read_2(iot, ioh, ESA_GPIO_DIRECTION);
1599 	bus_space_write_2(iot, ioh, ESA_GPIO_DIRECTION, data | gpo);
1600 	data = ESA_GPO_SECONDARY_AC97 | ESA_GPO_PRIMARY_AC97 | polarity;
1601 	bus_space_write_2(iot, ioh, ESA_GPIO_DATA, data);
1602 	bus_space_write_2(iot, ioh, ESA_GPIO_MASK, ~0);
1603 
1604 	return 0;
1605 }
1606 
1607 static void
1608 esa_enable_interrupts(struct esa_softc *sc)
1609 {
1610 	bus_space_tag_t iot;
1611 	bus_space_handle_t ioh;
1612 	uint8_t data;
1613 
1614 	iot = sc->sc_iot;
1615 	ioh = sc->sc_ioh;
1616 	bus_space_write_2(iot, ioh, ESA_HOST_INT_CTRL,
1617 	    ESA_ASSP_INT_ENABLE | ESA_HV_INT_ENABLE);
1618 	data = bus_space_read_1(iot, ioh, ESA_ASSP_CONTROL_C);
1619 	bus_space_write_1(iot, ioh, ESA_ASSP_CONTROL_C,
1620 	    data | ESA_ASSP_HOST_INT_ENABLE);
1621 }
1622 
1623 /*
1624  * List management
1625  */
1626 static int
1627 esa_add_list(struct esa_voice *vc, struct esa_list *el,
1628 	     uint16_t val, int index)
1629 {
1630 	struct esa_softc *sc;
1631 
1632 	sc = device_private(vc->parent);
1633 	el->indexmap[index] = el->currlen;
1634 	esa_write_assp(sc, ESA_MEMTYPE_INTERNAL_DATA,
1635 		       el->mem_addr + el->currlen,
1636 		       val);
1637 
1638 	return el->currlen++;
1639 }
1640 
1641 static void
1642 esa_remove_list(struct esa_voice *vc, struct esa_list *el, int index)
1643 {
1644 	struct esa_softc *sc;
1645 	uint16_t val;
1646 	int lastindex;
1647 	int vindex;
1648 	int i;
1649 
1650 	sc = device_private(vc->parent);
1651 	lastindex = el->currlen - 1;
1652 	vindex = el->indexmap[index];
1653 
1654 	/* reset our virtual index */
1655 	el->indexmap[index] = -1;
1656 
1657 	if (vindex != lastindex) {
1658 		val = esa_read_assp(sc, ESA_MEMTYPE_INTERNAL_DATA,
1659 				    el->mem_addr + lastindex);
1660 		esa_write_assp(sc, ESA_MEMTYPE_INTERNAL_DATA,
1661 			       el->mem_addr + vindex,
1662 			       val);
1663 		for (i = 0; i < ESA_NUM_VOICES * 2; i++)
1664 			if (el->indexmap[i] == lastindex)
1665 				break;
1666 		if (i >= ESA_NUM_VOICES * 2)
1667 			aprint_error_dev(sc->sc_dev,
1668 			    "esa_remove_list: invalid task index\n");
1669 		else
1670 			el->indexmap[i] = vindex;
1671 	}
1672 
1673 	esa_write_assp(sc, ESA_MEMTYPE_INTERNAL_DATA,
1674 		       el->mem_addr + lastindex, 0);
1675 	el->currlen--;
1676 
1677 	return;
1678 }
1679 
1680 static bool
1681 esa_suspend(device_t dv, const pmf_qual_t *qual)
1682 {
1683 	struct esa_softc *sc = device_private(dv);
1684 	bus_space_tag_t iot = sc->sc_iot;
1685 	bus_space_handle_t ioh = sc->sc_ioh;
1686 	int i, index;
1687 
1688 	index = 0;
1689 
1690 	mutex_enter(&sc->sc_lock);
1691 	mutex_spin_enter(&sc->sc_intr_lock);
1692 
1693 	bus_space_write_2(iot, ioh, ESA_HOST_INT_CTRL, 0);
1694 	bus_space_write_1(iot, ioh, ESA_ASSP_CONTROL_C, 0);
1695 
1696 	esa_assp_halt(sc);
1697 
1698 	/* Save ASSP state */
1699 	for (i = ESA_REV_B_CODE_MEMORY_BEGIN; i <= ESA_REV_B_CODE_MEMORY_END;
1700 	    i++)
1701 		sc->savemem[index++] = esa_read_assp(sc,
1702 		    ESA_MEMTYPE_INTERNAL_CODE, i);
1703 	for (i = ESA_REV_B_DATA_MEMORY_BEGIN; i <= ESA_REV_B_DATA_MEMORY_END;
1704 	    i++)
1705 		sc->savemem[index++] = esa_read_assp(sc,
1706 		    ESA_MEMTYPE_INTERNAL_DATA, i);
1707 
1708 	mutex_spin_exit(&sc->sc_intr_lock);
1709 	mutex_exit(&sc->sc_lock);
1710 
1711 	return true;
1712 }
1713 
1714 static bool
1715 esa_resume(device_t dv, const pmf_qual_t *qual)
1716 {
1717 	struct esa_softc *sc = device_private(dv);
1718 	bus_space_tag_t iot = sc->sc_iot;
1719 	bus_space_handle_t ioh = sc->sc_ioh;
1720 	int i, index;
1721 	uint8_t reset_state;
1722 	pcireg_t data;
1723 
1724 	index = 0;
1725 
1726 	delay(10000);
1727 
1728 	mutex_enter(&sc->sc_lock);
1729 	mutex_spin_enter(&sc->sc_intr_lock);
1730 
1731 	data = pci_conf_read(sc->sc_pct, sc->sc_tag, PCI_LEGACY_AUDIO_CTRL);
1732 	pci_conf_write(sc->sc_pct, sc->sc_tag, PCI_LEGACY_AUDIO_CTRL,
1733 	    data | DISABLE_LEGACY);
1734 
1735 	bus_space_write_4(iot, ioh, ESA_PCI_ACPI_CONTROL, ESA_PCI_ACPI_D0);
1736 
1737 	esa_config(sc);
1738 
1739 	reset_state = esa_assp_halt(sc);
1740 
1741 	esa_init_codec(sc);
1742 	esa_codec_reset(sc);
1743 
1744 	/* restore ASSP */
1745 	for (i = ESA_REV_B_CODE_MEMORY_BEGIN; i <= ESA_REV_B_CODE_MEMORY_END;
1746 	    i++)
1747 		esa_write_assp(sc, ESA_MEMTYPE_INTERNAL_CODE, i,
1748 		    sc->savemem[index++]);
1749 	for (i = ESA_REV_B_DATA_MEMORY_BEGIN; i <= ESA_REV_B_DATA_MEMORY_END;
1750 	    i++)
1751 		esa_write_assp(sc, ESA_MEMTYPE_INTERNAL_DATA, i,
1752 		    sc->savemem[index++]);
1753 
1754 	esa_write_assp(sc, ESA_MEMTYPE_INTERNAL_DATA, ESA_KDATA_DMA_ACTIVE, 0);
1755 	bus_space_write_1(iot, ioh, ESA_DSP_PORT_CONTROL_REG_B,
1756 	    reset_state | ESA_REGB_ENABLE_RESET);
1757 
1758 	esa_enable_interrupts(sc);
1759 	esa_amp_enable(sc);
1760 
1761 	mutex_spin_exit(&sc->sc_intr_lock);
1762 
1763 	/* Finally, power up AC97 codec */
1764 	delay(1000);
1765 
1766 	sc->codec_if->vtbl->restore_ports(sc->codec_if);
1767 
1768 	mutex_exit(&sc->sc_lock);
1769 
1770 	return true;
1771 }
1772 
1773 static uint32_t
1774 esa_get_pointer(struct esa_softc *sc, struct esa_channel *ch)
1775 {
1776 	uint16_t hi, lo;
1777 	uint32_t addr;
1778 	int data_offset;
1779 
1780 	data_offset = ch->data_offset;
1781 	hi = esa_read_assp(sc, ESA_MEMTYPE_INTERNAL_DATA, data_offset +
1782 	    ESA_CDATA_HOST_SRC_CURRENTH);
1783 	lo = esa_read_assp(sc, ESA_MEMTYPE_INTERNAL_DATA, data_offset +
1784 	    ESA_CDATA_HOST_SRC_CURRENTL);
1785 
1786 	addr = lo | ((uint32_t)hi << 16);
1787 	return (addr - ch->start);
1788 }
1789 
1790 static paddr_t
1791 esa_mappage(void *addr, void *mem, off_t off, int prot)
1792 {
1793 	struct esa_voice *vc;
1794 	struct esa_softc *sc;
1795 	struct esa_dma *p;
1796 
1797 	vc = addr;
1798 	sc = device_private(vc->parent);
1799 	if (off < 0)
1800 		return -1;
1801 	for (p = vc->dma; p && KERNADDR(p) != mem; p = p->next)
1802 		continue;
1803 	if (p == NULL)
1804 		return -1;
1805 	return bus_dmamem_mmap(sc->sc_dmat, p->segs, p->nsegs,
1806 			       off, prot, BUS_DMA_WAITOK);
1807 }
1808 
1809 static void
1810 esa_get_locks(void *addr, kmutex_t **intr, kmutex_t **proc)
1811 {
1812 	struct esa_voice *vc;
1813 	struct esa_softc *sc;
1814 
1815 	vc = addr;
1816 	sc = device_private(vc->parent);
1817 
1818 	*intr = &sc->sc_intr_lock;
1819 	*proc = &sc->sc_lock;
1820 }
1821