esa.c revision 1.57
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
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	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
483static void
484esa_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
502static int
503esa_getdev(void *hdl, struct audio_device *ret)
504{
505
506	*ret = esa_device;
507	return 0;
508}
509
510static int
511esa_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
521static int
522esa_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
532static int
533esa_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
543static size_t
544esa_round_buffersize(void *hdl, int direction, size_t bufsize)
545{
546
547	return bufsize;
548}
549
550static int
551esa_get_props(void *hdl)
552{
553
554	return AUDIO_PROP_MMAP | AUDIO_PROP_INDEPENDENT | AUDIO_PROP_FULLDUPLEX;
555}
556
557static int
558esa_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
691static int
692esa_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 */
824static int
825esa_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
925static int
926esa_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
955destroy:
956	bus_dmamap_destroy(sc->sc_dmat, p->map);
957unmap:
958	bus_dmamem_unmap(sc->sc_dmat, p->addr, p->size);
959free:
960	bus_dmamem_free(sc->sc_dmat, p->segs, p->nsegs);
961
962	return error;
963}
964
965static int
966esa_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
981static int
982esa_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
1000static void
1001esa_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
1167void
1168esa_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
1182static int
1183esa_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
1206static uint16_t
1207esa_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
1223static void
1224esa_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
1240static int
1241esa_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
1254static int
1255esa_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
1265static int
1266esa_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
1286static int
1287esa_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
1307static int
1308esa_reset_codec(void *aux)
1309{
1310
1311	return 0;
1312}
1313
1314static enum ac97_host_flags
1315esa_flags_codec(void *aux)
1316{
1317	struct esa_softc *sc;
1318
1319	sc = aux;
1320	return sc->codec_flags;
1321}
1322
1323static int
1324esa_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
1342static int
1343esa_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
1441static void
1442esa_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
1487static uint8_t
1488esa_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
1506static void
1507esa_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
1569static int
1570esa_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
1607static void
1608esa_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 */
1626static int
1627esa_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
1641static void
1642esa_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
1680static bool
1681esa_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
1714static bool
1715esa_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
1773static uint32_t
1774esa_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
1790static paddr_t
1791esa_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
1809static void
1810esa_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