esa.c revision 1.61
1/* $NetBSD: esa.c,v 1.61 2017/06/01 02:45:11 chs 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 1.61 2017/06/01 02:45:11 chs 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
75enum {
76	ESS_ALLEGRO1,
77	ESS_MAESTRO3
78};
79
80static 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
95static struct audio_device esa_device = {
96	"ESS Allegro",
97	"",
98	"esa"
99};
100
101static int		esa_match(device_t, cfdata_t, void *);
102static void		esa_attach(device_t, device_t, void *);
103static int		esa_detach(device_t, int);
104static void		esa_childdet(device_t, device_t);
105
106/* audio(9) functions */
107static int		esa_query_encoding(void *, struct audio_encoding *);
108static int		esa_set_params(void *, int, int, audio_params_t *,
109				       audio_params_t *, stream_filter_list_t *,
110				       stream_filter_list_t *);
111static int		esa_round_blocksize(void *, int, int,
112					    const audio_params_t *);
113static int		esa_commit_settings(void *);
114static int		esa_halt_output(void *);
115static int		esa_halt_input(void *);
116static int		esa_set_port(void *, mixer_ctrl_t *);
117static int		esa_get_port(void *, mixer_ctrl_t *);
118static int		esa_query_devinfo(void *, mixer_devinfo_t *);
119static void *		esa_malloc(void *, int, size_t);
120static void		esa_free(void *, void *, size_t);
121static int		esa_getdev(void *, struct audio_device *);
122static size_t		esa_round_buffersize(void *, int, size_t);
123static int		esa_get_props(void *);
124static int		esa_trigger_output(void *, void *, void *, int,
125					   void (*)(void *), void *,
126					   const audio_params_t *);
127static int		esa_trigger_input(void *, void *, void *, int,
128					  void (*)(void *), void *,
129					  const audio_params_t *);
130static void		esa_get_locks(void *, kmutex_t **, kmutex_t **);
131
132static int		esa_intr(void *);
133static int		esa_allocmem(struct esa_softc *, size_t, size_t,
134				     struct esa_dma *);
135static int		esa_freemem(struct esa_softc *, struct esa_dma *);
136static paddr_t		esa_mappage(void *, void *, off_t, int);
137
138/* Supporting subroutines */
139static uint16_t		esa_read_assp(struct esa_softc *, uint16_t, uint16_t);
140static void		esa_write_assp(struct esa_softc *, uint16_t, uint16_t,
141				       uint16_t);
142static int		esa_init_codec(struct esa_softc *);
143static int		esa_attach_codec(void *, struct ac97_codec_if *);
144static int		esa_read_codec(void *, uint8_t, uint16_t *);
145static int		esa_write_codec(void *, uint8_t, uint16_t);
146static int		esa_reset_codec(void *);
147static enum ac97_host_flags	esa_flags_codec(void *);
148static int		esa_wait(struct esa_softc *);
149static int		esa_init(struct esa_softc *);
150static void		esa_config(struct esa_softc *);
151static uint8_t		esa_assp_halt(struct esa_softc *);
152static void		esa_codec_reset(struct esa_softc *);
153static int		esa_amp_enable(struct esa_softc *);
154static void		esa_enable_interrupts(struct esa_softc *);
155static uint32_t		esa_get_pointer(struct esa_softc *,
156					struct esa_channel *);
157
158/* list management */
159static int		esa_add_list(struct esa_voice *, struct esa_list *,
160				     uint16_t, int);
161static void		esa_remove_list(struct esa_voice *, struct esa_list *,
162					int);
163
164/* power management */
165static bool		esa_suspend(device_t, const pmf_qual_t *);
166static bool		esa_resume(device_t, const pmf_qual_t *);
167
168
169#define ESA_NENCODINGS 8
170static 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
187static 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
198static 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
229CFATTACH_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
236static int
237esa_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
247static int
248esa_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
297static int
298esa_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
364static int
365esa_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
372static int
373esa_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
415static int
416esa_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
457static void *
458esa_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	vc = hdl;
467	sc = device_private(vc->parent);
468	error = esa_allocmem(sc, size, 16, p);
469	if (error) {
470		kmem_free(p, sizeof(*p));
471		aprint_error_dev(sc->sc_dev,
472		    "%s: not enough memory\n", __func__);
473		return 0;
474	}
475	p->next = vc->dma;
476	vc->dma = p;
477
478	return KERNADDR(p);
479}
480
481static void
482esa_free(void *hdl, void *addr, size_t size)
483{
484	struct esa_voice *vc;
485	struct esa_softc *sc;
486	struct esa_dma *p;
487	struct esa_dma **pp;
488
489	vc = hdl;
490	sc = device_private(vc->parent);
491	for (pp = &vc->dma; (p = *pp) != NULL; pp = &p->next)
492		if (KERNADDR(p) == addr) {
493			esa_freemem(sc, p);
494			*pp = p->next;
495			kmem_free(p, sizeof(*p));
496			return;
497		}
498}
499
500static int
501esa_getdev(void *hdl, struct audio_device *ret)
502{
503
504	*ret = esa_device;
505	return 0;
506}
507
508static int
509esa_set_port(void *hdl, mixer_ctrl_t *mc)
510{
511	struct esa_voice *vc;
512	struct esa_softc *sc;
513
514	vc = hdl;
515	sc = device_private(vc->parent);
516	return sc->codec_if->vtbl->mixer_set_port(sc->codec_if, mc);
517}
518
519static int
520esa_get_port(void *hdl, mixer_ctrl_t *mc)
521{
522	struct esa_voice *vc;
523	struct esa_softc *sc;
524
525	vc = hdl;
526	sc = device_private(vc->parent);
527	return sc->codec_if->vtbl->mixer_get_port(sc->codec_if, mc);
528}
529
530static int
531esa_query_devinfo(void *hdl, mixer_devinfo_t *di)
532{
533	struct esa_voice *vc;
534	struct esa_softc *sc;
535
536	vc = hdl;
537	sc = device_private(vc->parent);
538	return sc->codec_if->vtbl->query_devinfo(sc->codec_if, di);
539}
540
541static size_t
542esa_round_buffersize(void *hdl, int direction, size_t bufsize)
543{
544
545	return bufsize;
546}
547
548static int
549esa_get_props(void *hdl)
550{
551
552	return AUDIO_PROP_MMAP | AUDIO_PROP_INDEPENDENT | AUDIO_PROP_FULLDUPLEX;
553}
554
555static int
556esa_trigger_output(void *hdl, void *start, void *end, int blksize,
557    void (*intr)(void *), void *intrarg, const audio_params_t *param)
558{
559	struct esa_voice *vc;
560	struct esa_softc *sc;
561	struct esa_dma *p;
562	bus_space_tag_t iot;
563	bus_space_handle_t ioh;
564	size_t size;
565	uint32_t data, bufaddr, i;
566	int data_bytes, dac_data, dsp_in_size;
567	int dsp_out_size, dsp_in_buf, dsp_out_buf;
568
569	vc = hdl;
570	sc = device_private(vc->parent);
571	iot = sc->sc_iot;
572	ioh = sc->sc_ioh;
573	data_bytes = (((ESA_MINISRC_TMP_BUFFER_SIZE & ~1) +
574	    (ESA_MINISRC_IN_BUFFER_SIZE & ~1) +
575	    (ESA_MINISRC_OUT_BUFFER_SIZE & ~1) + 4) + 255) & ~255;
576	dac_data = ESA_DAC_DATA + (data_bytes * vc->index);
577	dsp_in_size = ESA_MINISRC_IN_BUFFER_SIZE - (0x20 * 2);
578	dsp_out_size = ESA_MINISRC_OUT_BUFFER_SIZE - (0x20 * 2);
579	dsp_in_buf = dac_data + (ESA_MINISRC_TMP_BUFFER_SIZE / 2);
580	dsp_out_buf = dsp_in_buf + (dsp_in_size / 2) + 1;
581
582	if (vc->play.active)
583		return EINVAL;
584
585	for (p = vc->dma; p && KERNADDR(p) != start; p = p->next)
586		continue;
587	if (p == NULL) {
588		aprint_error_dev(sc->sc_dev, "%s: bad addr %p\n", __func__,
589		    start);
590		return EINVAL;
591	}
592
593	vc->play.active = 1;
594	vc->play.intr = intr;
595	vc->play.arg = intrarg;
596	vc->play.pos = 0;
597	vc->play.count = 0;
598	vc->play.buf = start;
599	vc->play.bufsize = size = (size_t)(((char *)end - (char *)start));
600	vc->play.blksize = blksize;
601	bufaddr = DMAADDR(p);
602	vc->play.start = bufaddr;
603
604#define LO(x) ((x) & 0x0000ffff)
605#define HI(x) ((x) >> 16)
606
607	esa_write_assp(sc, ESA_MEMTYPE_INTERNAL_DATA, dac_data +
608	    ESA_CDATA_HOST_SRC_ADDRL, LO(bufaddr));
609	esa_write_assp(sc, ESA_MEMTYPE_INTERNAL_DATA, dac_data +
610	    ESA_CDATA_HOST_SRC_ADDRH, HI(bufaddr));
611	esa_write_assp(sc, ESA_MEMTYPE_INTERNAL_DATA, dac_data +
612	    ESA_CDATA_HOST_SRC_END_PLUS_1L, LO(bufaddr + size));
613	esa_write_assp(sc, ESA_MEMTYPE_INTERNAL_DATA, dac_data +
614	    ESA_CDATA_HOST_SRC_END_PLUS_1H, HI(bufaddr + size));
615	esa_write_assp(sc, ESA_MEMTYPE_INTERNAL_DATA, dac_data +
616	    ESA_CDATA_HOST_SRC_CURRENTL, LO(bufaddr));
617	esa_write_assp(sc, ESA_MEMTYPE_INTERNAL_DATA, dac_data +
618	    ESA_CDATA_HOST_SRC_CURRENTH, HI(bufaddr));
619
620	/* DSP buffers */
621	esa_write_assp(sc, ESA_MEMTYPE_INTERNAL_DATA, dac_data +
622	    ESA_CDATA_IN_BUF_BEGIN, dsp_in_buf);
623	esa_write_assp(sc, ESA_MEMTYPE_INTERNAL_DATA, dac_data +
624	    ESA_CDATA_IN_BUF_END_PLUS_1, dsp_in_buf + (dsp_in_size / 2));
625	esa_write_assp(sc, ESA_MEMTYPE_INTERNAL_DATA, dac_data +
626	    ESA_CDATA_IN_BUF_HEAD, dsp_in_buf);
627	esa_write_assp(sc, ESA_MEMTYPE_INTERNAL_DATA, dac_data +
628	    ESA_CDATA_IN_BUF_TAIL, dsp_in_buf);
629	esa_write_assp(sc, ESA_MEMTYPE_INTERNAL_DATA, dac_data +
630	    ESA_CDATA_OUT_BUF_BEGIN, dsp_out_buf);
631	esa_write_assp(sc, ESA_MEMTYPE_INTERNAL_DATA, dac_data +
632	    ESA_CDATA_OUT_BUF_END_PLUS_1, dsp_out_buf + (dsp_out_size / 2));
633	esa_write_assp(sc, ESA_MEMTYPE_INTERNAL_DATA, dac_data +
634	    ESA_CDATA_OUT_BUF_HEAD, dsp_out_buf);
635	esa_write_assp(sc, ESA_MEMTYPE_INTERNAL_DATA, dac_data +
636	    ESA_CDATA_OUT_BUF_TAIL, dsp_out_buf);
637
638	/* Some per-client initializers */
639	esa_write_assp(sc, ESA_MEMTYPE_INTERNAL_DATA, dac_data +
640	    ESA_SRC3_DIRECTION_OFFSET + 12, dac_data + 40 + 8);
641	esa_write_assp(sc, ESA_MEMTYPE_INTERNAL_DATA, dac_data +
642	    ESA_SRC3_DIRECTION_OFFSET + 19, 0x400 + ESA_MINISRC_COEF_LOC);
643	/* Enable or disable low-pass filter? (0xff if rate > 45000) */
644	esa_write_assp(sc, ESA_MEMTYPE_INTERNAL_DATA, dac_data +
645	    ESA_SRC3_DIRECTION_OFFSET + 22,
646	    vc->play.mode.sample_rate > 45000 ? 0xff : 0);
647	/* Tell it which way DMA is going */
648	esa_write_assp(sc, ESA_MEMTYPE_INTERNAL_DATA, dac_data +
649	    ESA_CDATA_DMA_CONTROL,
650	    ESA_DMACONTROL_AUTOREPEAT + ESA_DMAC_PAGE3_SELECTOR +
651	    ESA_DMAC_BLOCKF_SELECTOR);
652
653	/* Set an armload of static initializers */
654	for (i = 0; i < __arraycount(esa_playvals); i++)
655		esa_write_assp(sc, ESA_MEMTYPE_INTERNAL_DATA, dac_data +
656		    esa_playvals[i].addr, esa_playvals[i].val);
657
658	/* Put us in the packed task lists */
659	esa_add_list(vc, &sc->msrc_list, dac_data >> ESA_DP_SHIFT_COUNT,
660		     vc->index);
661	esa_add_list(vc, &sc->dma_list, dac_data >> ESA_DP_SHIFT_COUNT,
662		     vc->index);
663	esa_add_list(vc, &sc->mixer_list, dac_data >> ESA_DP_SHIFT_COUNT,
664		     vc->index);
665#undef LO
666#undef HI
667
668	sc->sc_ntimers++;
669
670	if (sc->sc_ntimers == 1) {
671		esa_write_assp(sc, ESA_MEMTYPE_INTERNAL_DATA,
672		    ESA_KDATA_TIMER_COUNT_RELOAD, 240);
673		esa_write_assp(sc, ESA_MEMTYPE_INTERNAL_DATA,
674		    ESA_KDATA_TIMER_COUNT_CURRENT, 240);
675		data = bus_space_read_2(iot, ioh, ESA_HOST_INT_CTRL);
676		bus_space_write_2(iot, ioh, ESA_HOST_INT_CTRL,
677		    data | ESA_CLKRUN_GEN_ENABLE);
678	}
679
680	esa_write_assp(sc, ESA_MEMTYPE_INTERNAL_DATA, dac_data +
681	    ESA_CDATA_INSTANCE_READY, 1);
682	esa_write_assp(sc, ESA_MEMTYPE_INTERNAL_DATA,
683	    ESA_KDATA_MIXER_TASK_NUMBER,
684	    sc->mixer_list.indexmap[vc->index]);
685
686	return 0;
687}
688
689static int
690esa_trigger_input(void *hdl, void *start, void *end, int blksize,
691    void (*intr)(void *), void *intrarg, const audio_params_t *param)
692{
693	struct esa_voice *vc;
694	struct esa_softc *sc;
695	struct esa_dma *p;
696	bus_space_tag_t iot;
697	bus_space_handle_t ioh;
698	uint32_t data, bufaddr, i;
699	size_t size;
700	int data_bytes, adc_data, dsp_in_size;
701	int dsp_out_size, dsp_in_buf, dsp_out_buf;
702
703	vc = hdl;
704	sc = device_private(vc->parent);
705	iot = sc->sc_iot;
706	ioh = sc->sc_ioh;
707	data_bytes = (((ESA_MINISRC_TMP_BUFFER_SIZE & ~1) +
708	    (ESA_MINISRC_IN_BUFFER_SIZE & ~1) +
709	    (ESA_MINISRC_OUT_BUFFER_SIZE & ~1) + 4) + 255) & ~255;
710	adc_data = ESA_DAC_DATA + (data_bytes * vc->index) + (data_bytes / 2);
711	dsp_in_size = ESA_MINISRC_IN_BUFFER_SIZE - (0x10 * 2);
712	dsp_out_size = ESA_MINISRC_OUT_BUFFER_SIZE - (0x10 * 2);
713	dsp_in_buf = adc_data + (ESA_MINISRC_TMP_BUFFER_SIZE / 2);
714	dsp_out_buf = dsp_in_buf + (dsp_in_size / 2) + 1;
715
716	vc->rec.data_offset = adc_data;
717
718	/* We only support 1 recording channel */
719	if (vc->index > 0)
720		return ENODEV;
721
722	if (vc->rec.active)
723		return EINVAL;
724
725	for (p = vc->dma; p && KERNADDR(p) != start; p = p->next)
726		continue;
727	if (p == NULL) {
728		aprint_error_dev(sc->sc_dev, "%s: bad addr %p\n",
729		    __func__, start);
730		return EINVAL;
731	}
732
733	vc->rec.active = 1;
734	vc->rec.intr = intr;
735	vc->rec.arg = intrarg;
736	vc->rec.pos = 0;
737	vc->rec.count = 0;
738	vc->rec.buf = start;
739	vc->rec.bufsize = size = (size_t)(((char *)end - (char *)start));
740	vc->rec.blksize = blksize;
741	bufaddr = DMAADDR(p);
742	vc->rec.start = bufaddr;
743
744#define LO(x) ((x) & 0x0000ffff)
745#define HI(x) ((x) >> 16)
746
747	esa_write_assp(sc, ESA_MEMTYPE_INTERNAL_DATA, adc_data +
748	    ESA_CDATA_HOST_SRC_ADDRL, LO(bufaddr));
749	esa_write_assp(sc, ESA_MEMTYPE_INTERNAL_DATA, adc_data +
750	    ESA_CDATA_HOST_SRC_ADDRH, HI(bufaddr));
751	esa_write_assp(sc, ESA_MEMTYPE_INTERNAL_DATA, adc_data +
752	    ESA_CDATA_HOST_SRC_END_PLUS_1L, LO(bufaddr + size));
753	esa_write_assp(sc, ESA_MEMTYPE_INTERNAL_DATA, adc_data +
754	    ESA_CDATA_HOST_SRC_END_PLUS_1H, HI(bufaddr + size));
755	esa_write_assp(sc, ESA_MEMTYPE_INTERNAL_DATA, adc_data +
756	    ESA_CDATA_HOST_SRC_CURRENTL, LO(bufaddr));
757	esa_write_assp(sc, ESA_MEMTYPE_INTERNAL_DATA, adc_data +
758	    ESA_CDATA_HOST_SRC_CURRENTH, HI(bufaddr));
759
760	/* DSP buffers */
761	esa_write_assp(sc, ESA_MEMTYPE_INTERNAL_DATA, adc_data +
762	    ESA_CDATA_IN_BUF_BEGIN, dsp_in_buf);
763	esa_write_assp(sc, ESA_MEMTYPE_INTERNAL_DATA, adc_data +
764	    ESA_CDATA_IN_BUF_END_PLUS_1, dsp_in_buf + (dsp_in_size / 2));
765	esa_write_assp(sc, ESA_MEMTYPE_INTERNAL_DATA, adc_data +
766	    ESA_CDATA_IN_BUF_HEAD, dsp_in_buf);
767	esa_write_assp(sc, ESA_MEMTYPE_INTERNAL_DATA, adc_data +
768	    ESA_CDATA_IN_BUF_TAIL, dsp_in_buf);
769	esa_write_assp(sc, ESA_MEMTYPE_INTERNAL_DATA, adc_data +
770	    ESA_CDATA_OUT_BUF_BEGIN, dsp_out_buf);
771	esa_write_assp(sc, ESA_MEMTYPE_INTERNAL_DATA, adc_data +
772	    ESA_CDATA_OUT_BUF_END_PLUS_1, dsp_out_buf + (dsp_out_size / 2));
773	esa_write_assp(sc, ESA_MEMTYPE_INTERNAL_DATA, adc_data +
774	    ESA_CDATA_OUT_BUF_HEAD, dsp_out_buf);
775	esa_write_assp(sc, ESA_MEMTYPE_INTERNAL_DATA, adc_data +
776	    ESA_CDATA_OUT_BUF_TAIL, dsp_out_buf);
777
778	/* Some per-client initializers */
779	esa_write_assp(sc, ESA_MEMTYPE_INTERNAL_DATA, adc_data +
780	    ESA_SRC3_DIRECTION_OFFSET + 12, adc_data + 40 + 8);
781	/* Tell it which way DMA is going */
782	esa_write_assp(sc, ESA_MEMTYPE_INTERNAL_DATA, adc_data +
783	    ESA_CDATA_DMA_CONTROL,
784	    ESA_DMACONTROL_DIRECTION + ESA_DMACONTROL_AUTOREPEAT +
785	    ESA_DMAC_PAGE3_SELECTOR + ESA_DMAC_BLOCKF_SELECTOR);
786
787	/* Set an armload of static initializers */
788	for (i = 0; i < __arraycount(esa_recvals); i++)
789		esa_write_assp(sc, ESA_MEMTYPE_INTERNAL_DATA, adc_data +
790		    esa_recvals[i].addr, esa_recvals[i].val);
791
792	/* Put us in the packed task lists */
793	esa_add_list(vc, &sc->adc1_list, adc_data >> ESA_DP_SHIFT_COUNT,
794		     vc->index + ESA_NUM_VOICES);
795	esa_add_list(vc, &sc->msrc_list, adc_data >> ESA_DP_SHIFT_COUNT,
796		     vc->index + ESA_NUM_VOICES);
797	esa_add_list(vc, &sc->dma_list, adc_data >> ESA_DP_SHIFT_COUNT,
798		     vc->index + ESA_NUM_VOICES);
799#undef LO
800#undef HI
801
802	sc->sc_ntimers++;
803	if (sc->sc_ntimers == 1) {
804		esa_write_assp(sc, ESA_MEMTYPE_INTERNAL_DATA,
805		    ESA_KDATA_TIMER_COUNT_RELOAD, 240);
806		esa_write_assp(sc, ESA_MEMTYPE_INTERNAL_DATA,
807		    ESA_KDATA_TIMER_COUNT_CURRENT, 240);
808		data = bus_space_read_2(iot, ioh, ESA_HOST_INT_CTRL);
809		bus_space_write_2(iot, ioh, ESA_HOST_INT_CTRL,
810		    data | ESA_CLKRUN_GEN_ENABLE);
811	}
812
813	esa_write_assp(sc, ESA_MEMTYPE_INTERNAL_DATA, adc_data +
814	    ESA_CDATA_INSTANCE_READY, 1);
815	esa_write_assp(sc, ESA_MEMTYPE_INTERNAL_DATA, ESA_KDATA_ADC1_REQUEST,
816	    1);
817
818	return 0;
819}
820
821/* Interrupt handler */
822static int
823esa_intr(void *hdl)
824{
825	struct esa_softc *sc;
826	struct esa_voice *vc;
827	bus_space_tag_t iot;
828	bus_space_handle_t ioh;
829	uint8_t status;
830	uint32_t pos;
831	uint32_t diff;
832	uint32_t blksize;
833	int i;
834
835	sc = hdl;
836	mutex_spin_enter(&sc->sc_intr_lock);
837
838	iot = sc->sc_iot;
839	ioh = sc->sc_ioh;
840
841	status = bus_space_read_1(iot, ioh, ESA_HOST_INT_STATUS);
842	if (status == 0xff) {
843		mutex_spin_exit(&sc->sc_intr_lock);
844		return 0;
845	}
846
847	/* ack the interrupt */
848	bus_space_write_1(iot, ioh, ESA_HOST_INT_STATUS, status);
849
850	if (status & ESA_HV_INT_PENDING) {
851		uint8_t event;
852
853		aprint_normal_dev(sc->sc_dev, "hardware volume interrupt\n");
854		event = bus_space_read_1(iot, ioh, ESA_HW_VOL_COUNTER_MASTER);
855		switch(event) {
856		case 0xaa:	/* volume up */
857			pmf_event_inject(NULL, PMFE_AUDIO_VOLUME_UP);
858			break;
859		case 0x66:	/* volume down */
860			pmf_event_inject(NULL, PMFE_AUDIO_VOLUME_DOWN);
861			break;
862		case 0x88:	/* mute */
863			pmf_event_inject(NULL, PMFE_AUDIO_VOLUME_TOGGLE);
864			break;
865		default:
866			aprint_normal_dev(sc->sc_dev,
867			    "unknown hwvol event 0x%02x\n", event);
868			break;
869		}
870		bus_space_write_1(iot, ioh, ESA_HW_VOL_COUNTER_MASTER, 0x88);
871	}
872
873	if ((status & ESA_ASSP_INT_PENDING) == 0 ||
874	    (bus_space_read_1(iot, ioh,
875	     ESA_ASSP_CONTROL_B) & ESA_STOP_ASSP_CLOCK) != 0 ||
876	    (bus_space_read_1(iot, ioh,
877	     ESA_ASSP_HOST_INT_STATUS) & ESA_DSP2HOST_REQ_TIMER) == 0) {
878		mutex_spin_exit(&sc->sc_intr_lock);
879		return 1;
880	}
881
882	bus_space_write_1(iot, ioh, ESA_ASSP_HOST_INT_STATUS,
883	    ESA_DSP2HOST_REQ_TIMER);
884
885	for (i = 0; i < ESA_NUM_VOICES; i++) {
886		vc = &sc->voice[i];
887
888		if (vc->play.active) {
889			pos = esa_get_pointer(sc, &vc->play) % vc->play.bufsize;
890			diff = (vc->play.bufsize + pos - vc->play.pos) %
891			    vc->play.bufsize;
892
893			vc->play.pos = pos;
894			vc->play.count += diff;
895			blksize = vc->play.blksize;
896
897			while (vc->play.count >= blksize) {
898				vc->play.count -= blksize;
899				(*vc->play.intr)(vc->play.arg);
900			}
901		}
902
903		if (vc->rec.active) {
904			pos = esa_get_pointer(sc, &vc->rec) % vc->rec.bufsize;
905			diff = (vc->rec.bufsize + pos - vc->rec.pos) %
906			    vc->rec.bufsize;
907
908			vc->rec.pos = pos;
909			vc->rec.count += diff;
910			blksize = vc->rec.blksize;
911
912			while (vc->rec.count >= blksize) {
913				vc->rec.count -= blksize;
914				(*vc->rec.intr)(vc->rec.arg);
915			}
916		}
917	}
918
919	mutex_spin_exit(&sc->sc_intr_lock);
920	return 1;
921}
922
923static int
924esa_allocmem(struct esa_softc *sc, size_t size, size_t align,
925	     struct esa_dma *p)
926{
927	int error;
928
929	p->size = size;
930	error = bus_dmamem_alloc(sc->sc_dmat, p->size, align, 0,
931				 p->segs, __arraycount(p->segs),
932				 &p->nsegs, BUS_DMA_WAITOK);
933	if (error)
934		return error;
935
936	error = bus_dmamem_map(sc->sc_dmat, p->segs, p->nsegs, p->size,
937				&p->addr, BUS_DMA_WAITOK | BUS_DMA_COHERENT);
938	if (error)
939		goto free;
940
941	error = bus_dmamap_create(sc->sc_dmat, p->size, 1, p->size, 0,
942				  BUS_DMA_WAITOK, &p->map);
943	if (error)
944		goto unmap;
945
946	error = bus_dmamap_load(sc->sc_dmat, p->map, p->addr, p->size, NULL,
947				BUS_DMA_WAITOK);
948	if (error)
949		goto destroy;
950
951	return 0;
952
953destroy:
954	bus_dmamap_destroy(sc->sc_dmat, p->map);
955unmap:
956	bus_dmamem_unmap(sc->sc_dmat, p->addr, p->size);
957free:
958	bus_dmamem_free(sc->sc_dmat, p->segs, p->nsegs);
959
960	return error;
961}
962
963static int
964esa_freemem(struct esa_softc *sc, struct esa_dma *p)
965{
966
967	bus_dmamap_unload(sc->sc_dmat, p->map);
968	bus_dmamap_destroy(sc->sc_dmat, p->map);
969	bus_dmamem_unmap(sc->sc_dmat, p->addr, p->size);
970	bus_dmamem_free(sc->sc_dmat, p->segs, p->nsegs);
971
972	return 0;
973}
974
975/*
976 * Supporting Subroutines
977 */
978
979static int
980esa_match(device_t dev, cfdata_t match, void *aux)
981{
982	struct pci_attach_args *pa;
983
984	pa = (struct pci_attach_args *)aux;
985	switch (PCI_VENDOR(pa->pa_id)) {
986	case PCI_VENDOR_ESSTECH:
987		switch(PCI_PRODUCT(pa->pa_id)) {
988		case PCI_PRODUCT_ESSTECH_ALLEGRO1:
989		case PCI_PRODUCT_ESSTECH_MAESTRO3:
990		case PCI_PRODUCT_ESSTECH_MAESTRO3_2:
991			return 1;
992		}
993	}
994
995	return 0;
996}
997
998static void
999esa_attach(device_t parent, device_t self, void *aux)
1000{
1001	struct esa_softc *sc;
1002	struct pci_attach_args *pa;
1003	pcitag_t tag;
1004	pci_chipset_tag_t pc;
1005	pci_intr_handle_t ih;
1006	const struct esa_card_type *card;
1007	const char *intrstr;
1008	uint32_t data;
1009	int revision, i, error;
1010	char intrbuf[PCI_INTRSTR_LEN];
1011
1012	sc = device_private(self);
1013	pa = (struct pci_attach_args *)aux;
1014	tag = pa->pa_tag;
1015	pc = pa->pa_pc;
1016
1017	pci_aprint_devinfo(pa, "Audio controller");
1018
1019	revision = PCI_REVISION(pa->pa_class);
1020
1021	for (card = esa_card_types; card->pci_vendor_id; card++)
1022		if (PCI_VENDOR(pa->pa_id) == card->pci_vendor_id &&
1023		    PCI_PRODUCT(pa->pa_id) == card->pci_product_id) {
1024			sc->type = card->type;
1025			sc->delay1 = card->delay1;
1026			sc->delay2 = card->delay2;
1027			break;
1028		}
1029
1030	data = pci_conf_read(pc, tag, PCI_COMMAND_STATUS_REG);
1031	data |= (PCI_COMMAND_IO_ENABLE | PCI_COMMAND_MEM_ENABLE
1032	    | PCI_COMMAND_MASTER_ENABLE);
1033	pci_conf_write(pc, tag, PCI_COMMAND_STATUS_REG, data);
1034
1035	/* Map I/O register */
1036	if (pci_mapreg_map(pa, PCI_CBIO, PCI_MAPREG_TYPE_IO, 0,
1037	    &sc->sc_iot, &sc->sc_ioh, &sc->sc_iob, &sc->sc_ios)) {
1038		aprint_error_dev(sc->sc_dev, "can't map i/o space\n");
1039		return;
1040	}
1041
1042	/* Initialize softc */
1043	sc->sc_dev = self;
1044	sc->sc_tag = tag;
1045	sc->sc_pct = pc;
1046	sc->sc_dmat = pa->pa_dmat;
1047
1048	mutex_init(&sc->sc_lock, MUTEX_DEFAULT, IPL_NONE);
1049	mutex_init(&sc->sc_intr_lock, MUTEX_DEFAULT, IPL_AUDIO);
1050
1051	/* Map and establish an interrupt */
1052	if (pci_intr_map(pa, &ih)) {
1053		aprint_error_dev(sc->sc_dev, "can't map interrupt\n");
1054		mutex_destroy(&sc->sc_lock);
1055		mutex_destroy(&sc->sc_intr_lock);
1056		return;
1057	}
1058	intrstr = pci_intr_string(pc, ih, intrbuf, sizeof(intrbuf));
1059	sc->sc_ih = pci_intr_establish(pc, ih, IPL_AUDIO, esa_intr, sc);
1060	if (sc->sc_ih == NULL) {
1061		aprint_error_dev(sc->sc_dev, "can't establish interrupt");
1062		if (intrstr != NULL)
1063			aprint_error(" at %s", intrstr);
1064		aprint_error("\n");
1065		mutex_destroy(&sc->sc_lock);
1066		mutex_destroy(&sc->sc_intr_lock);
1067		return;
1068	}
1069	aprint_normal_dev(sc->sc_dev, "interrupting at %s\n", intrstr);
1070
1071	/* power up chip */
1072	if ((error = pci_activate(pa->pa_pc, pa->pa_tag, self,
1073	    pci_activate_null)) && error != EOPNOTSUPP) {
1074		aprint_error_dev(sc->sc_dev, "cannot activate %d\n", error);
1075		mutex_destroy(&sc->sc_lock);
1076		mutex_destroy(&sc->sc_intr_lock);
1077		return;
1078	}
1079
1080	/* Init chip */
1081	if (esa_init(sc) == -1) {
1082		aprint_error_dev(sc->sc_dev,
1083		    "esa_attach: unable to initialize the card\n");
1084		mutex_destroy(&sc->sc_lock);
1085		mutex_destroy(&sc->sc_intr_lock);
1086		return;
1087	}
1088
1089	/* create suspend save area */
1090	sc->savememsz = sizeof(uint16_t) * (ESA_REV_B_CODE_MEMORY_LENGTH
1091	    + ESA_REV_B_DATA_MEMORY_LENGTH + 1);
1092	sc->savemem = kmem_zalloc(sc->savememsz, KM_SLEEP);
1093
1094	/*
1095	 * Every card I've seen has had their channels swapped with respect
1096	 * to the mixer. Ie:
1097	 *  $ mixerctl -w outputs.master=0,191
1098	 * Would result in the _right_ speaker being turned off.
1099	 *
1100	 * So, we will swap the left and right mixer channels to compensate
1101	 * for this.
1102	 *
1103	 * XXX PR# 23620: The Dell C810 channels are not swapped. Match
1104	 *     on revision ID for now; this is probably wrong.
1105	 */
1106	if (revision == 0x10 && sc->type == ESS_MAESTRO3)
1107		sc->codec_flags = 0;
1108	else
1109		sc->codec_flags = AC97_HOST_SWAPPED_CHANNELS;
1110
1111	/* initialize list management structures */
1112	sc->mixer_list.mem_addr = ESA_KDATA_MIXER_XFER0;
1113	sc->mixer_list.max = ESA_MAX_VIRTUAL_MIXER_CHANNELS;
1114	sc->adc1_list.mem_addr = ESA_KDATA_ADC1_XFER0;
1115	sc->adc1_list.max = ESA_MAX_VIRTUAL_ADC1_CHANNELS;
1116	sc->dma_list.mem_addr = ESA_KDATA_DMA_XFER0;
1117	sc->dma_list.max = ESA_MAX_VIRTUAL_DMA_CHANNELS;
1118	sc->msrc_list.mem_addr = ESA_KDATA_INSTANCE0_MINISRC;
1119	sc->msrc_list.max = ESA_MAX_INSTANCE_MINISRC;
1120
1121	/* initialize index maps */
1122	for (i = 0; i < ESA_NUM_VOICES * 2; i++) {
1123		sc->mixer_list.indexmap[i] = -1;
1124		sc->msrc_list.indexmap[i] = -1;
1125		sc->dma_list.indexmap[i] = -1;
1126		sc->adc1_list.indexmap[i] = -1;
1127	}
1128
1129	/* Attach AC97 host interface */
1130	sc->host_if.arg = sc;
1131	sc->host_if.attach = esa_attach_codec;
1132	sc->host_if.read = esa_read_codec;
1133	sc->host_if.write = esa_write_codec;
1134	sc->host_if.reset = esa_reset_codec;
1135	sc->host_if.flags = esa_flags_codec;
1136
1137	if (ac97_attach(&sc->host_if, self, &sc->sc_lock) != 0) {
1138		mutex_destroy(&sc->sc_lock);
1139		mutex_destroy(&sc->sc_intr_lock);
1140		return;
1141	}
1142
1143	/* Attach audio interface. */
1144	for (i = 0; i < ESA_NUM_VOICES; i++) {
1145		sc->voice[i].parent = sc->sc_dev;
1146		sc->voice[i].index = i;
1147		sc->sc_audiodev[i] =
1148		    audio_attach_mi(&esa_hw_if, &sc->voice[i], sc->sc_dev);
1149	}
1150
1151	if (!pmf_device_register(self, esa_suspend, esa_resume))
1152		aprint_error_dev(self, "couldn't establish power handler\n");
1153
1154	return;
1155}
1156
1157void
1158esa_childdet(device_t self, device_t child)
1159{
1160	struct esa_softc *sc = device_private(self);
1161	int i;
1162
1163	for (i = 0; i < ESA_NUM_VOICES; i++) {
1164		if (sc->sc_audiodev[i] == child) {
1165			sc->sc_audiodev[i] = NULL;
1166			break;
1167		}
1168	}
1169	KASSERT(i < ESA_NUM_VOICES);
1170}
1171
1172static int
1173esa_detach(device_t self, int flags)
1174{
1175	struct esa_softc *sc;
1176	int i;
1177
1178	sc = device_private(self);
1179	for (i = 0; i < ESA_NUM_VOICES; i++) {
1180		if (sc->sc_audiodev[i] != NULL)
1181			config_detach(sc->sc_audiodev[i], flags);
1182	}
1183
1184	if (sc->sc_ih != NULL)
1185		pci_intr_disestablish(sc->sc_pct, sc->sc_ih);
1186	if (sc->sc_ios)
1187		bus_space_unmap(sc->sc_iot, sc->sc_ioh, sc->sc_ios);
1188
1189	kmem_free(sc->savemem, sc->savememsz);
1190	mutex_destroy(&sc->sc_lock);
1191	mutex_destroy(&sc->sc_intr_lock);
1192
1193	return 0;
1194}
1195
1196static uint16_t
1197esa_read_assp(struct esa_softc *sc, uint16_t region, uint16_t index)
1198{
1199	uint16_t data;
1200	bus_space_tag_t iot;
1201	bus_space_handle_t ioh;
1202
1203	iot = sc->sc_iot;
1204	ioh = sc->sc_ioh;
1205	bus_space_write_2(iot, ioh, ESA_DSP_PORT_MEMORY_TYPE,
1206	    region & ESA_MEMTYPE_MASK);
1207	bus_space_write_2(iot, ioh, ESA_DSP_PORT_MEMORY_INDEX, index);
1208	data = bus_space_read_2(iot, ioh, ESA_DSP_PORT_MEMORY_DATA);
1209
1210	return data;
1211}
1212
1213static void
1214esa_write_assp(struct esa_softc *sc, uint16_t region, uint16_t index,
1215	       uint16_t data)
1216{
1217	bus_space_tag_t iot;
1218	bus_space_handle_t ioh;
1219
1220	iot = sc->sc_iot;
1221	ioh = sc->sc_ioh;
1222	bus_space_write_2(iot, ioh, ESA_DSP_PORT_MEMORY_TYPE,
1223	    region & ESA_MEMTYPE_MASK);
1224	bus_space_write_2(iot, ioh, ESA_DSP_PORT_MEMORY_INDEX, index);
1225	bus_space_write_2(iot, ioh, ESA_DSP_PORT_MEMORY_DATA, data);
1226
1227	return;
1228}
1229
1230static int
1231esa_init_codec(struct esa_softc *sc)
1232{
1233	bus_space_tag_t iot;
1234	bus_space_handle_t ioh;
1235	uint32_t data;
1236
1237	iot = sc->sc_iot;
1238	ioh = sc->sc_ioh;
1239	data = bus_space_read_1(iot, ioh, ESA_CODEC_COMMAND);
1240
1241	return (data & 0x1) ? 0 : 1;
1242}
1243
1244static int
1245esa_attach_codec(void *aux, struct ac97_codec_if *codec_if)
1246{
1247	struct esa_softc *sc;
1248
1249	sc = aux;
1250	sc->codec_if = codec_if;
1251
1252	return 0;
1253}
1254
1255static int
1256esa_read_codec(void *aux, uint8_t reg, uint16_t *result)
1257{
1258	struct esa_softc *sc;
1259	bus_space_tag_t iot;
1260	bus_space_handle_t ioh;
1261
1262	sc = aux;
1263	iot = sc->sc_iot;
1264	ioh = sc->sc_ioh;
1265	if (esa_wait(sc))
1266		aprint_error_dev(sc->sc_dev, "esa_read_codec: timed out\n");
1267	bus_space_write_1(iot, ioh, ESA_CODEC_COMMAND, (reg & 0x7f) | 0x80);
1268	delay(50);
1269	if (esa_wait(sc))
1270		aprint_error_dev(sc->sc_dev, "esa_read_codec: timed out\n");
1271	*result = bus_space_read_2(iot, ioh, ESA_CODEC_DATA);
1272
1273	return 0;
1274}
1275
1276static int
1277esa_write_codec(void *aux, uint8_t reg, uint16_t data)
1278{
1279	struct esa_softc *sc;
1280	bus_space_tag_t iot;
1281	bus_space_handle_t ioh;
1282
1283	sc = aux;
1284	iot = sc->sc_iot;
1285	ioh = sc->sc_ioh;
1286	if (esa_wait(sc)) {
1287		aprint_error_dev(sc->sc_dev, "esa_write_codec: timed out\n");
1288		return -1;
1289	}
1290	bus_space_write_2(iot, ioh, ESA_CODEC_DATA, data);
1291	bus_space_write_1(iot, ioh, ESA_CODEC_COMMAND, reg & 0x7f);
1292	delay(50);
1293
1294	return 0;
1295}
1296
1297static int
1298esa_reset_codec(void *aux)
1299{
1300
1301	return 0;
1302}
1303
1304static enum ac97_host_flags
1305esa_flags_codec(void *aux)
1306{
1307	struct esa_softc *sc;
1308
1309	sc = aux;
1310	return sc->codec_flags;
1311}
1312
1313static int
1314esa_wait(struct esa_softc *sc)
1315{
1316	int i, val;
1317	bus_space_tag_t iot;
1318	bus_space_handle_t ioh;
1319
1320	iot = sc->sc_iot;
1321	ioh = sc->sc_ioh;
1322	for (i = 0; i < 20; i++) {
1323		val = bus_space_read_1(iot, ioh, ESA_CODEC_STATUS);
1324		if ((val & 1) == 0)
1325			return 0;
1326		delay(2);
1327	}
1328
1329	return -1;
1330}
1331
1332static int
1333esa_init(struct esa_softc *sc)
1334{
1335	struct esa_voice *vc;
1336	bus_space_tag_t iot;
1337	bus_space_handle_t ioh;
1338	pcitag_t tag;
1339	pci_chipset_tag_t pc;
1340	uint32_t data, i, size;
1341	uint8_t reset_state;
1342	int data_bytes;
1343
1344	iot = sc->sc_iot;
1345	ioh = sc->sc_ioh;
1346	tag = sc->sc_tag;
1347	pc = sc->sc_pct;
1348	data_bytes = (((ESA_MINISRC_TMP_BUFFER_SIZE & ~1) +
1349	    (ESA_MINISRC_IN_BUFFER_SIZE & ~1) +
1350	    (ESA_MINISRC_OUT_BUFFER_SIZE & ~1) + 4) + 255) & ~255;
1351
1352	mutex_spin_enter(&sc->sc_intr_lock);
1353
1354	/* Disable legacy emulation */
1355	data = pci_conf_read(pc, tag, PCI_LEGACY_AUDIO_CTRL);
1356	data |= DISABLE_LEGACY;
1357	pci_conf_write(pc, tag, PCI_LEGACY_AUDIO_CTRL, data);
1358
1359	esa_config(sc);
1360
1361	reset_state = esa_assp_halt(sc);
1362
1363	esa_init_codec(sc);
1364	esa_codec_reset(sc);
1365
1366	/* Zero kernel and mixer data */
1367	size = ESA_REV_B_DATA_MEMORY_UNIT_LENGTH * ESA_NUM_UNITS_KERNEL_DATA;
1368	for (i = 0; i < size / 2; i++) {
1369		esa_write_assp(sc, ESA_MEMTYPE_INTERNAL_DATA,
1370		    ESA_KDATA_BASE_ADDR + i, 0);
1371		esa_write_assp(sc, ESA_MEMTYPE_INTERNAL_DATA,
1372		    ESA_KDATA_BASE_ADDR2 + i, 0);
1373	}
1374
1375	/* Init DMA pointer */
1376	esa_write_assp(sc, ESA_MEMTYPE_INTERNAL_DATA, ESA_KDATA_CURRENT_DMA,
1377	    ESA_KDATA_DMA_XFER0);
1378
1379	/* Write kernel code into memory */
1380	for (i = 0; i < __arraycount(esa_assp_kernel_image); i++)
1381		esa_write_assp(sc, ESA_MEMTYPE_INTERNAL_CODE,
1382		    ESA_REV_B_CODE_MEMORY_BEGIN + i, esa_assp_kernel_image[i]);
1383
1384	for (i = 0; i < __arraycount(esa_assp_minisrc_image); i++)
1385		esa_write_assp(sc, ESA_MEMTYPE_INTERNAL_CODE, 0x400 + i,
1386		    esa_assp_minisrc_image[i]);
1387
1388	/* Write the coefficients for the low pass filter */
1389	for (i = 0; i < __arraycount(esa_minisrc_lpf_image); i++)
1390		esa_write_assp(sc, ESA_MEMTYPE_INTERNAL_CODE,
1391		    0x400 + ESA_MINISRC_COEF_LOC + i,
1392		    esa_minisrc_lpf_image[i]);
1393	esa_write_assp(sc, ESA_MEMTYPE_INTERNAL_CODE,
1394	    0x400 + ESA_MINISRC_COEF_LOC + size, 0x8000);
1395	esa_write_assp(sc, ESA_MEMTYPE_INTERNAL_DATA, ESA_KDATA_TASK0, 0x400);
1396	/* Init the mixer number */
1397	esa_write_assp(sc, ESA_MEMTYPE_INTERNAL_DATA,
1398	     ESA_KDATA_MIXER_TASK_NUMBER, 0);
1399	/* Extreme kernel master volume */
1400	esa_write_assp(sc, ESA_MEMTYPE_INTERNAL_DATA,
1401	    ESA_KDATA_DAC_LEFT_VOLUME, ESA_ARB_VOLUME);
1402	esa_write_assp(sc, ESA_MEMTYPE_INTERNAL_DATA,
1403	    ESA_KDATA_DAC_RIGHT_VOLUME, ESA_ARB_VOLUME);
1404
1405	if (esa_amp_enable(sc))
1406		return -1;
1407
1408	/* Zero entire DAC/ADC area */
1409	for (i = 0x1100; i < 0x1c00; i++)
1410		esa_write_assp(sc, ESA_MEMTYPE_INTERNAL_DATA, i, 0);
1411
1412	/* set some sane defaults */
1413	for (i = 0; i < ESA_NUM_VOICES; i++) {
1414		vc = &sc->voice[i];
1415		vc->play.data_offset = ESA_DAC_DATA + (data_bytes * i);
1416		vc->rec.data_offset = ESA_DAC_DATA + (data_bytes * i * 2);
1417	}
1418
1419	esa_enable_interrupts(sc);
1420
1421	bus_space_write_1(iot, ioh, ESA_DSP_PORT_CONTROL_REG_B,
1422	    reset_state | ESA_REGB_ENABLE_RESET);
1423
1424	mutex_spin_exit(&sc->sc_intr_lock);
1425
1426	return 0;
1427}
1428
1429static void
1430esa_config(struct esa_softc *sc)
1431{
1432	bus_space_tag_t iot;
1433	bus_space_handle_t ioh;
1434	pcitag_t tag;
1435	pci_chipset_tag_t pc;
1436	uint32_t data;
1437
1438	iot = sc->sc_iot;
1439	ioh = sc->sc_ioh;
1440	tag = sc->sc_tag;
1441	pc = sc->sc_pct;
1442
1443	data = pci_conf_read(pc, tag, ESA_PCI_ALLEGRO_CONFIG);
1444	data &= ESA_REDUCED_DEBOUNCE;
1445	data |= ESA_PM_CTRL_ENABLE | ESA_CLK_DIV_BY_49 | ESA_USE_PCI_TIMING;
1446	pci_conf_write(pc, tag, ESA_PCI_ALLEGRO_CONFIG, data);
1447
1448	bus_space_write_1(iot, ioh, ESA_ASSP_CONTROL_B, ESA_RESET_ASSP);
1449	data = pci_conf_read(pc, tag, ESA_PCI_ALLEGRO_CONFIG);
1450	data &= ~ESA_INT_CLK_SELECT;
1451	if (sc->type == ESS_MAESTRO3) {
1452		data &= ~ESA_INT_CLK_MULT_ENABLE;
1453		data |= ESA_INT_CLK_SRC_NOT_PCI;
1454	}
1455	data &= ~(ESA_CLK_MULT_MODE_SELECT | ESA_CLK_MULT_MODE_SELECT_2);
1456	pci_conf_write(pc, tag, ESA_PCI_ALLEGRO_CONFIG, data);
1457
1458	if (sc->type == ESS_ALLEGRO1) {
1459		data = pci_conf_read(pc, tag, ESA_PCI_USER_CONFIG);
1460		data |= ESA_IN_CLK_12MHZ_SELECT;
1461		pci_conf_write(pc, tag, ESA_PCI_USER_CONFIG, data);
1462	}
1463
1464	data = bus_space_read_1(iot, ioh, ESA_ASSP_CONTROL_A);
1465	data &= ~(ESA_DSP_CLK_36MHZ_SELECT | ESA_ASSP_CLK_49MHZ_SELECT);
1466	data |= ESA_ASSP_CLK_49MHZ_SELECT;	/* XXX: Assumes 49MHz DSP */
1467	data |= ESA_ASSP_0_WS_ENABLE;
1468	bus_space_write_1(iot, ioh, ESA_ASSP_CONTROL_A, data);
1469
1470	bus_space_write_1(iot, ioh, ESA_ASSP_CONTROL_B, ESA_RUN_ASSP);
1471
1472	return;
1473}
1474
1475static uint8_t
1476esa_assp_halt(struct esa_softc *sc)
1477{
1478	bus_space_tag_t iot;
1479	bus_space_handle_t ioh;
1480	uint8_t data, reset_state;
1481
1482	iot = sc->sc_iot;
1483	ioh = sc->sc_ioh;
1484	data = bus_space_read_1(iot, ioh, ESA_DSP_PORT_CONTROL_REG_B);
1485	reset_state = data & ~ESA_REGB_STOP_CLOCK;
1486	delay(10000);
1487	bus_space_write_1(iot, ioh, ESA_DSP_PORT_CONTROL_REG_B,
1488			reset_state & ~ESA_REGB_ENABLE_RESET);
1489	delay(10000);
1490
1491	return reset_state;
1492}
1493
1494static void
1495esa_codec_reset(struct esa_softc *sc)
1496{
1497	bus_space_tag_t iot;
1498	bus_space_handle_t ioh;
1499	uint16_t data, dir;
1500	int retry;
1501
1502	iot = sc->sc_iot;
1503	ioh = sc->sc_ioh;
1504	retry = 0;
1505	do {
1506		data = bus_space_read_2(iot, ioh, ESA_GPIO_DIRECTION);
1507		dir = data | 0x10; /* assuming pci bus master? */
1508
1509		/* remote codec config */
1510		data = bus_space_read_2(iot, ioh, ESA_RING_BUS_CTRL_B);
1511		bus_space_write_2(iot, ioh, ESA_RING_BUS_CTRL_B,
1512		    data & ~ESA_SECOND_CODEC_ID_MASK);
1513		data = bus_space_read_2(iot, ioh, ESA_SDO_OUT_DEST_CTRL);
1514		bus_space_write_2(iot, ioh, ESA_SDO_OUT_DEST_CTRL,
1515		    data & ~ESA_COMMAND_ADDR_OUT);
1516		data = bus_space_read_2(iot, ioh, ESA_SDO_IN_DEST_CTRL);
1517		bus_space_write_2(iot, ioh, ESA_SDO_IN_DEST_CTRL,
1518		    data & ~ESA_STATUS_ADDR_IN);
1519
1520		bus_space_write_2(iot, ioh, ESA_RING_BUS_CTRL_A,
1521				  ESA_IO_SRAM_ENABLE);
1522		delay(20);
1523
1524		bus_space_write_2(iot, ioh, ESA_GPIO_DIRECTION,
1525		    dir & ~ESA_GPO_PRIMARY_AC97);
1526		bus_space_write_2(iot, ioh, ESA_GPIO_MASK,
1527				  ~ESA_GPO_PRIMARY_AC97);
1528		bus_space_write_2(iot, ioh, ESA_GPIO_DATA, 0);
1529		bus_space_write_2(iot, ioh, ESA_GPIO_DIRECTION,
1530		    dir | ESA_GPO_PRIMARY_AC97);
1531		delay(sc->delay1 * 1000);
1532		bus_space_write_2(iot, ioh, ESA_GPIO_DATA,
1533				  ESA_GPO_PRIMARY_AC97);
1534		delay(5);
1535		bus_space_write_2(iot, ioh, ESA_RING_BUS_CTRL_A,
1536		    ESA_IO_SRAM_ENABLE | ESA_SERIAL_AC_LINK_ENABLE);
1537		bus_space_write_2(iot, ioh, ESA_GPIO_MASK, ~0);
1538		delay(sc->delay2 * 1000);
1539
1540		esa_read_codec(sc, 0x7c, &data);
1541		if ((data == 0) || (data == 0xffff)) {
1542			retry++;
1543			if (retry > 3) {
1544				aprint_error_dev(sc->sc_dev,
1545				    "esa_codec_reset: failed\n");
1546				break;
1547			}
1548			aprint_normal_dev(sc->sc_dev,
1549			    "esa_codec_reset: retrying\n");
1550		} else
1551			retry = 0;
1552	} while (retry);
1553
1554	return;
1555}
1556
1557static int
1558esa_amp_enable(struct esa_softc *sc)
1559{
1560	bus_space_tag_t iot;
1561	bus_space_handle_t ioh;
1562	uint32_t gpo, polarity_port, polarity;
1563	uint16_t data;
1564
1565	iot = sc->sc_iot;
1566	ioh = sc->sc_ioh;
1567	switch (sc->type) {
1568	case ESS_ALLEGRO1:
1569		polarity_port = 0x1800;
1570		break;
1571	case ESS_MAESTRO3:
1572		polarity_port = 0x1100;
1573		break;
1574	default:
1575		aprint_error_dev(sc->sc_dev,
1576		    "esa_amp_enable: Unknown chip type!!!\n");
1577		return 1;
1578	}
1579
1580	gpo = (polarity_port >> 8) & 0x0f;
1581	polarity = polarity_port >> 12;
1582	polarity = !polarity;	/* Enable */
1583	polarity = polarity << gpo;
1584	gpo = 1 << gpo;
1585	bus_space_write_2(iot, ioh, ESA_GPIO_MASK, ~gpo);
1586	data = bus_space_read_2(iot, ioh, ESA_GPIO_DIRECTION);
1587	bus_space_write_2(iot, ioh, ESA_GPIO_DIRECTION, data | gpo);
1588	data = ESA_GPO_SECONDARY_AC97 | ESA_GPO_PRIMARY_AC97 | polarity;
1589	bus_space_write_2(iot, ioh, ESA_GPIO_DATA, data);
1590	bus_space_write_2(iot, ioh, ESA_GPIO_MASK, ~0);
1591
1592	return 0;
1593}
1594
1595static void
1596esa_enable_interrupts(struct esa_softc *sc)
1597{
1598	bus_space_tag_t iot;
1599	bus_space_handle_t ioh;
1600	uint8_t data;
1601
1602	iot = sc->sc_iot;
1603	ioh = sc->sc_ioh;
1604	bus_space_write_2(iot, ioh, ESA_HOST_INT_CTRL,
1605	    ESA_ASSP_INT_ENABLE | ESA_HV_INT_ENABLE);
1606	data = bus_space_read_1(iot, ioh, ESA_ASSP_CONTROL_C);
1607	bus_space_write_1(iot, ioh, ESA_ASSP_CONTROL_C,
1608	    data | ESA_ASSP_HOST_INT_ENABLE);
1609}
1610
1611/*
1612 * List management
1613 */
1614static int
1615esa_add_list(struct esa_voice *vc, struct esa_list *el,
1616	     uint16_t val, int index)
1617{
1618	struct esa_softc *sc;
1619
1620	sc = device_private(vc->parent);
1621	el->indexmap[index] = el->currlen;
1622	esa_write_assp(sc, ESA_MEMTYPE_INTERNAL_DATA,
1623		       el->mem_addr + el->currlen,
1624		       val);
1625
1626	return el->currlen++;
1627}
1628
1629static void
1630esa_remove_list(struct esa_voice *vc, struct esa_list *el, int index)
1631{
1632	struct esa_softc *sc;
1633	uint16_t val;
1634	int lastindex;
1635	int vindex;
1636	int i;
1637
1638	sc = device_private(vc->parent);
1639	lastindex = el->currlen - 1;
1640	vindex = el->indexmap[index];
1641
1642	/* reset our virtual index */
1643	el->indexmap[index] = -1;
1644
1645	if (vindex != lastindex) {
1646		val = esa_read_assp(sc, ESA_MEMTYPE_INTERNAL_DATA,
1647				    el->mem_addr + lastindex);
1648		esa_write_assp(sc, ESA_MEMTYPE_INTERNAL_DATA,
1649			       el->mem_addr + vindex,
1650			       val);
1651		for (i = 0; i < ESA_NUM_VOICES * 2; i++)
1652			if (el->indexmap[i] == lastindex)
1653				break;
1654		if (i >= ESA_NUM_VOICES * 2)
1655			aprint_error_dev(sc->sc_dev,
1656			    "esa_remove_list: invalid task index\n");
1657		else
1658			el->indexmap[i] = vindex;
1659	}
1660
1661	esa_write_assp(sc, ESA_MEMTYPE_INTERNAL_DATA,
1662		       el->mem_addr + lastindex, 0);
1663	el->currlen--;
1664
1665	return;
1666}
1667
1668static bool
1669esa_suspend(device_t dv, const pmf_qual_t *qual)
1670{
1671	struct esa_softc *sc = device_private(dv);
1672	bus_space_tag_t iot = sc->sc_iot;
1673	bus_space_handle_t ioh = sc->sc_ioh;
1674	int i, index;
1675
1676	index = 0;
1677
1678	mutex_enter(&sc->sc_lock);
1679	mutex_spin_enter(&sc->sc_intr_lock);
1680
1681	bus_space_write_2(iot, ioh, ESA_HOST_INT_CTRL, 0);
1682	bus_space_write_1(iot, ioh, ESA_ASSP_CONTROL_C, 0);
1683
1684	esa_assp_halt(sc);
1685
1686	/* Save ASSP state */
1687	for (i = ESA_REV_B_CODE_MEMORY_BEGIN; i <= ESA_REV_B_CODE_MEMORY_END;
1688	    i++)
1689		sc->savemem[index++] = esa_read_assp(sc,
1690		    ESA_MEMTYPE_INTERNAL_CODE, i);
1691	for (i = ESA_REV_B_DATA_MEMORY_BEGIN; i <= ESA_REV_B_DATA_MEMORY_END;
1692	    i++)
1693		sc->savemem[index++] = esa_read_assp(sc,
1694		    ESA_MEMTYPE_INTERNAL_DATA, i);
1695
1696	mutex_spin_exit(&sc->sc_intr_lock);
1697	mutex_exit(&sc->sc_lock);
1698
1699	return true;
1700}
1701
1702static bool
1703esa_resume(device_t dv, const pmf_qual_t *qual)
1704{
1705	struct esa_softc *sc = device_private(dv);
1706	bus_space_tag_t iot = sc->sc_iot;
1707	bus_space_handle_t ioh = sc->sc_ioh;
1708	int i, index;
1709	uint8_t reset_state;
1710	pcireg_t data;
1711
1712	index = 0;
1713
1714	delay(10000);
1715
1716	mutex_enter(&sc->sc_lock);
1717	mutex_spin_enter(&sc->sc_intr_lock);
1718
1719	data = pci_conf_read(sc->sc_pct, sc->sc_tag, PCI_LEGACY_AUDIO_CTRL);
1720	pci_conf_write(sc->sc_pct, sc->sc_tag, PCI_LEGACY_AUDIO_CTRL,
1721	    data | DISABLE_LEGACY);
1722
1723	bus_space_write_4(iot, ioh, ESA_PCI_ACPI_CONTROL, ESA_PCI_ACPI_D0);
1724
1725	esa_config(sc);
1726
1727	reset_state = esa_assp_halt(sc);
1728
1729	esa_init_codec(sc);
1730	esa_codec_reset(sc);
1731
1732	/* restore ASSP */
1733	for (i = ESA_REV_B_CODE_MEMORY_BEGIN; i <= ESA_REV_B_CODE_MEMORY_END;
1734	    i++)
1735		esa_write_assp(sc, ESA_MEMTYPE_INTERNAL_CODE, i,
1736		    sc->savemem[index++]);
1737	for (i = ESA_REV_B_DATA_MEMORY_BEGIN; i <= ESA_REV_B_DATA_MEMORY_END;
1738	    i++)
1739		esa_write_assp(sc, ESA_MEMTYPE_INTERNAL_DATA, i,
1740		    sc->savemem[index++]);
1741
1742	esa_write_assp(sc, ESA_MEMTYPE_INTERNAL_DATA, ESA_KDATA_DMA_ACTIVE, 0);
1743	bus_space_write_1(iot, ioh, ESA_DSP_PORT_CONTROL_REG_B,
1744	    reset_state | ESA_REGB_ENABLE_RESET);
1745
1746	esa_enable_interrupts(sc);
1747	esa_amp_enable(sc);
1748
1749	mutex_spin_exit(&sc->sc_intr_lock);
1750
1751	/* Finally, power up AC97 codec */
1752	delay(1000);
1753
1754	sc->codec_if->vtbl->restore_ports(sc->codec_if);
1755
1756	mutex_exit(&sc->sc_lock);
1757
1758	return true;
1759}
1760
1761static uint32_t
1762esa_get_pointer(struct esa_softc *sc, struct esa_channel *ch)
1763{
1764	uint16_t hi, lo;
1765	uint32_t addr;
1766	int data_offset;
1767
1768	data_offset = ch->data_offset;
1769	hi = esa_read_assp(sc, ESA_MEMTYPE_INTERNAL_DATA, data_offset +
1770	    ESA_CDATA_HOST_SRC_CURRENTH);
1771	lo = esa_read_assp(sc, ESA_MEMTYPE_INTERNAL_DATA, data_offset +
1772	    ESA_CDATA_HOST_SRC_CURRENTL);
1773
1774	addr = lo | ((uint32_t)hi << 16);
1775	return (addr - ch->start);
1776}
1777
1778static paddr_t
1779esa_mappage(void *addr, void *mem, off_t off, int prot)
1780{
1781	struct esa_voice *vc;
1782	struct esa_softc *sc;
1783	struct esa_dma *p;
1784
1785	vc = addr;
1786	sc = device_private(vc->parent);
1787	if (off < 0)
1788		return -1;
1789	for (p = vc->dma; p && KERNADDR(p) != mem; p = p->next)
1790		continue;
1791	if (p == NULL)
1792		return -1;
1793	return bus_dmamem_mmap(sc->sc_dmat, p->segs, p->nsegs,
1794			       off, prot, BUS_DMA_WAITOK);
1795}
1796
1797static void
1798esa_get_locks(void *addr, kmutex_t **intr, kmutex_t **proc)
1799{
1800	struct esa_voice *vc;
1801	struct esa_softc *sc;
1802
1803	vc = addr;
1804	sc = device_private(vc->parent);
1805
1806	*intr = &sc->sc_intr_lock;
1807	*proc = &sc->sc_lock;
1808}
1809