1/*	$NetBSD: eap.c,v 1.93 2011/11/23 23:07:35 jmcneill Exp $	*/
2/*      $OpenBSD: eap.c,v 1.6 1999/10/05 19:24:42 csapuntz Exp $ */
3
4/*
5 * Copyright (c) 1998, 1999, 2002, 2008 The NetBSD Foundation, Inc.
6 * All rights reserved.
7 *
8 * This code is derived from software contributed to The NetBSD Foundation
9 * by Lennart Augustsson <augustss@NetBSD.org>, Charles M. Hannum,
10 * Antti Kantee <pooka@NetBSD.org>, and Andrew Doran.
11 *
12 * Redistribution and use in source and binary forms, with or without
13 * modification, are permitted provided that the following conditions
14 * are met:
15 * 1. Redistributions of source code must retain the above copyright
16 *    notice, this list of conditions and the following disclaimer.
17 * 2. Redistributions in binary form must reproduce the above copyright
18 *    notice, this list of conditions and the following disclaimer in the
19 *    documentation and/or other materials provided with the distribution.
20 *
21 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
22 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
23 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
24 * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
25 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
26 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
27 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
28 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
29 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
30 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
31 * POSSIBILITY OF SUCH DAMAGE.
32 */
33
34/*
35 * Debugging:   Andreas Gustafsson <gson@araneus.fi>
36 * Testing:     Chuck Cranor       <chuck@maria.wustl.edu>
37 *              Phil Nelson        <phil@cs.wwu.edu>
38 *
39 * ES1371/AC97:	Ezra Story         <ezy@panix.com>
40 */
41
42/*
43 * Ensoniq ES1370 + AK4531 and ES1371/ES1373 + AC97
44 *
45 * Documentation links:
46 *
47 * ftp://ftp.alsa-project.org/pub/manuals/ensoniq/ (ES1370 and 1371 datasheets)
48 * http://web.archive.org/web/20040622012936/http://www.corbac.com/Data/Misc/es1373.ps.gz
49 * ftp://ftp.alsa-project.org/pub/manuals/asahi_kasei/4531.pdf
50 * ftp://download.intel.com/ial/scalableplatforms/audio/ac97r21.pdf
51 */
52
53#include <sys/cdefs.h>
54__KERNEL_RCSID(0, "$NetBSD: eap.c,v 1.93 2011/11/23 23:07:35 jmcneill Exp $");
55
56#include "midi.h"
57#include "joy_eap.h"
58
59#include <sys/param.h>
60#include <sys/systm.h>
61#include <sys/kernel.h>
62#include <sys/fcntl.h>
63#include <sys/kmem.h>
64#include <sys/device.h>
65#include <sys/proc.h>
66#include <sys/select.h>
67#include <sys/mutex.h>
68#include <sys/bus.h>
69#include <sys/audioio.h>
70
71#include <dev/audio_if.h>
72#include <dev/midi_if.h>
73#include <dev/audiovar.h>
74#include <dev/mulaw.h>
75#include <dev/auconv.h>
76
77#include <dev/pci/pcidevs.h>
78#include <dev/pci/eapreg.h>
79#include <dev/pci/eapvar.h>
80
81#define	PCI_CBIO		0x10
82
83/* Debug */
84#ifdef AUDIO_DEBUG
85#define DPRINTF(x)	if (eapdebug) printf x
86#define DPRINTFN(n,x)	if (eapdebug>(n)) printf x
87int	eapdebug = 0;
88#else
89#define DPRINTF(x)
90#define DPRINTFN(n,x)
91#endif
92
93static int	eap_match(device_t, cfdata_t, void *);
94static void	eap_attach(device_t, device_t, void *);
95static int	eap_detach(device_t, int);
96static int	eap_intr(void *);
97
98static int	eap_allocmem(struct eap_softc *, size_t, size_t,
99			     struct eap_dma *);
100static int	eap_freemem(struct eap_softc *, struct eap_dma *);
101
102#define EWRITE1(sc, r, x) bus_space_write_1((sc)->iot, (sc)->ioh, (r), (x))
103#define EWRITE2(sc, r, x) bus_space_write_2((sc)->iot, (sc)->ioh, (r), (x))
104#define EWRITE4(sc, r, x) bus_space_write_4((sc)->iot, (sc)->ioh, (r), (x))
105#define EREAD1(sc, r) bus_space_read_1((sc)->iot, (sc)->ioh, (r))
106#define EREAD2(sc, r) bus_space_read_2((sc)->iot, (sc)->ioh, (r))
107#define EREAD4(sc, r) bus_space_read_4((sc)->iot, (sc)->ioh, (r))
108
109CFATTACH_DECL_NEW(eap, sizeof(struct eap_softc),
110    eap_match, eap_attach, eap_detach, NULL);
111
112static int	eap_open(void *, int);
113static int	eap_query_encoding(void *, struct audio_encoding *);
114static int	eap_set_params(void *, int, int, audio_params_t *,
115			       audio_params_t *, stream_filter_list_t *,
116			       stream_filter_list_t *);
117static int	eap_round_blocksize(void *, int, int, const audio_params_t *);
118static int	eap_trigger_output(void *, void *, void *, int,
119				   void (*)(void *), void *,
120				   const audio_params_t *);
121static int	eap_trigger_input(void *, void *, void *, int,
122				  void (*)(void *), void *,
123				  const audio_params_t *);
124static int	eap_halt_output(void *);
125static int	eap_halt_input(void *);
126static void	eap1370_write_codec(struct eap_softc *, int, int);
127static int	eap_getdev(void *, struct audio_device *);
128static int	eap1370_mixer_set_port(void *, mixer_ctrl_t *);
129static int	eap1370_mixer_get_port(void *, mixer_ctrl_t *);
130static int	eap1371_mixer_set_port(void *, mixer_ctrl_t *);
131static int	eap1371_mixer_get_port(void *, mixer_ctrl_t *);
132static int	eap1370_query_devinfo(void *, mixer_devinfo_t *);
133static void	*eap_malloc(void *, int, size_t);
134static void	eap_free(void *, void *, size_t);
135static size_t	eap_round_buffersize(void *, int, size_t);
136static paddr_t	eap_mappage(void *, void *, off_t, int);
137static int	eap_get_props(void *);
138static void	eap1370_set_mixer(struct eap_softc *, int, int);
139static uint32_t eap1371_src_wait(struct eap_softc *);
140static void	eap1371_set_adc_rate(struct eap_softc *, int);
141static void	eap1371_set_dac_rate(struct eap_instance *, int);
142static int	eap1371_src_read(struct eap_softc *, int);
143static void	eap1371_src_write(struct eap_softc *, int, int);
144static int	eap1371_query_devinfo(void *, mixer_devinfo_t *);
145
146static int	eap1371_attach_codec(void *, struct ac97_codec_if *);
147static int	eap1371_read_codec(void *, uint8_t, uint16_t *);
148static int	eap1371_write_codec(void *, uint8_t, uint16_t );
149static int	eap1371_reset_codec(void *);
150static void	eap_get_locks(void *, kmutex_t **, kmutex_t **);
151
152#if NMIDI > 0
153static void	eap_midi_close(void *);
154static void	eap_midi_getinfo(void *, struct midi_info *);
155static int	eap_midi_open(void *, int, void (*)(void *, int),
156			      void (*)(void *), void *);
157static int	eap_midi_output(void *, int);
158static void	eap_uart_txrdy(struct eap_softc *);
159#endif
160
161static const struct audio_hw_if eap1370_hw_if = {
162	eap_open,
163	NULL,			/* close */
164	NULL,
165	eap_query_encoding,
166	eap_set_params,
167	eap_round_blocksize,
168	NULL,
169	NULL,
170	NULL,
171	NULL,
172	NULL,
173	eap_halt_output,
174	eap_halt_input,
175	NULL,
176	eap_getdev,
177	NULL,
178	eap1370_mixer_set_port,
179	eap1370_mixer_get_port,
180	eap1370_query_devinfo,
181	eap_malloc,
182	eap_free,
183	eap_round_buffersize,
184	eap_mappage,
185	eap_get_props,
186	eap_trigger_output,
187	eap_trigger_input,
188	NULL,
189	eap_get_locks,
190};
191
192static const struct audio_hw_if eap1371_hw_if = {
193	eap_open,
194	NULL,			/* close */
195	NULL,
196	eap_query_encoding,
197	eap_set_params,
198	eap_round_blocksize,
199	NULL,
200	NULL,
201	NULL,
202	NULL,
203	NULL,
204	eap_halt_output,
205	eap_halt_input,
206	NULL,
207	eap_getdev,
208	NULL,
209	eap1371_mixer_set_port,
210	eap1371_mixer_get_port,
211	eap1371_query_devinfo,
212	eap_malloc,
213	eap_free,
214	eap_round_buffersize,
215	eap_mappage,
216	eap_get_props,
217	eap_trigger_output,
218	eap_trigger_input,
219	NULL,
220	eap_get_locks,
221};
222
223#if NMIDI > 0
224static const struct midi_hw_if eap_midi_hw_if = {
225	eap_midi_open,
226	eap_midi_close,
227	eap_midi_output,
228	eap_midi_getinfo,
229	0,				/* ioctl */
230	eap_get_locks,
231};
232#endif
233
234static struct audio_device eap_device = {
235	"Ensoniq AudioPCI",
236	"",
237	"eap"
238};
239
240#define EAP_NFORMATS	4
241static const struct audio_format eap_formats[EAP_NFORMATS] = {
242	{NULL, AUMODE_PLAY | AUMODE_RECORD, AUDIO_ENCODING_SLINEAR_LE, 16, 16,
243	 2, AUFMT_STEREO, 0, {4000, 48000}},
244	{NULL, AUMODE_PLAY | AUMODE_RECORD, AUDIO_ENCODING_SLINEAR_LE, 16, 16,
245	 1, AUFMT_MONAURAL, 0, {4000, 48000}},
246	{NULL, AUMODE_PLAY | AUMODE_RECORD, AUDIO_ENCODING_ULINEAR_LE, 8, 8,
247	 2, AUFMT_STEREO, 0, {4000, 48000}},
248	{NULL, AUMODE_PLAY | AUMODE_RECORD, AUDIO_ENCODING_ULINEAR_LE, 8, 8,
249	 1, AUFMT_MONAURAL, 0, {4000, 48000}},
250};
251
252static int
253eap_match(device_t parent, cfdata_t match, void *aux)
254{
255	struct pci_attach_args *pa;
256
257	pa = (struct pci_attach_args *)aux;
258	switch (PCI_VENDOR(pa->pa_id)) {
259	case PCI_VENDOR_CREATIVELABS:
260		switch (PCI_PRODUCT(pa->pa_id)) {
261		case PCI_PRODUCT_CREATIVELABS_EV1938:
262			return 1;
263		}
264		break;
265	case PCI_VENDOR_ENSONIQ:
266		switch (PCI_PRODUCT(pa->pa_id)) {
267		case PCI_PRODUCT_ENSONIQ_AUDIOPCI:
268		case PCI_PRODUCT_ENSONIQ_AUDIOPCI97:
269		case PCI_PRODUCT_ENSONIQ_CT5880:
270			return 1;
271		}
272		break;
273	}
274
275	return 0;
276}
277
278static void
279eap1370_write_codec(struct eap_softc *sc, int a, int d)
280{
281	int icss, to;
282
283	to = EAP_WRITE_TIMEOUT;
284	do {
285		icss = EREAD4(sc, EAP_ICSS);
286		DPRINTFN(5,("eap: codec %d prog: icss=0x%08x\n", a, icss));
287		if (!to--) {
288			printf("eap: timeout writing to codec\n");
289			return;
290		}
291	} while(icss & EAP_CWRIP);  /* XXX could use CSTAT here */
292	EWRITE4(sc, EAP_CODEC, EAP_SET_CODEC(a, d));
293}
294
295/*
296 * Reading and writing the CODEC is very convoluted.  This mimics the
297 * FreeBSD and Linux drivers.
298 */
299
300static inline void
301eap1371_ready_codec(struct eap_softc *sc, uint8_t a, uint32_t wd)
302{
303	int to;
304	uint32_t src, t;
305
306	for (to = 0; to < EAP_WRITE_TIMEOUT; to++) {
307		if (!(EREAD4(sc, E1371_CODEC) & E1371_CODEC_WIP))
308			break;
309		delay(1);
310	}
311	if (to >= EAP_WRITE_TIMEOUT)
312		aprint_error_dev(sc->sc_dev,
313		    "eap1371_ready_codec timeout 1\n");
314
315	mutex_spin_enter(&sc->sc_intr_lock);
316	src = eap1371_src_wait(sc) & E1371_SRC_CTLMASK;
317	EWRITE4(sc, E1371_SRC, src | E1371_SRC_STATE_OK);
318
319	for (to = 0; to < EAP_READ_TIMEOUT; to++) {
320		t = EREAD4(sc, E1371_SRC);
321		if ((t & E1371_SRC_STATE_MASK) == 0)
322			break;
323		delay(1);
324	}
325	if (to >= EAP_READ_TIMEOUT)
326		aprint_error_dev(sc->sc_dev,
327		    "eap1371_ready_codec timeout 2\n");
328
329	for (to = 0; to < EAP_READ_TIMEOUT; to++) {
330		t = EREAD4(sc, E1371_SRC);
331		if ((t & E1371_SRC_STATE_MASK) == E1371_SRC_STATE_OK)
332			break;
333		delay(1);
334	}
335	if (to >= EAP_READ_TIMEOUT)
336		aprint_error_dev(sc->sc_dev,
337		    "eap1371_ready_codec timeout 3\n");
338
339	EWRITE4(sc, E1371_CODEC, wd);
340
341	eap1371_src_wait(sc);
342	EWRITE4(sc, E1371_SRC, src);
343
344	mutex_spin_exit(&sc->sc_intr_lock);
345}
346
347static int
348eap1371_read_codec(void *sc_, uint8_t a, uint16_t *d)
349{
350	struct eap_softc *sc;
351	int to;
352	uint32_t t;
353
354	sc = sc_;
355	eap1371_ready_codec(sc, a, E1371_SET_CODEC(a, 0) | E1371_CODEC_READ);
356
357	for (to = 0; to < EAP_WRITE_TIMEOUT; to++) {
358		if (!(EREAD4(sc, E1371_CODEC) & E1371_CODEC_WIP))
359			break;
360	}
361	if (to > EAP_WRITE_TIMEOUT)
362		aprint_error_dev(sc->sc_dev,
363		    "eap1371_read_codec timeout 1\n");
364
365	for (to = 0; to < EAP_WRITE_TIMEOUT; to++) {
366		t = EREAD4(sc, E1371_CODEC);
367		if (t & E1371_CODEC_VALID)
368			break;
369	}
370	if (to > EAP_WRITE_TIMEOUT)
371		aprint_error_dev(sc->sc_dev, "eap1371_read_codec timeout 2\n");
372
373	*d = (uint16_t)t;
374
375	DPRINTFN(10, ("eap1371: reading codec (%x) = %x\n", a, *d));
376
377	return 0;
378}
379
380static int
381eap1371_write_codec(void *sc_, uint8_t a, uint16_t d)
382{
383	struct eap_softc *sc;
384
385	sc = sc_;
386	eap1371_ready_codec(sc, a, E1371_SET_CODEC(a, d));
387
388	DPRINTFN(10, ("eap1371: writing codec %x --> %x\n", d, a));
389
390	return 0;
391}
392
393static uint32_t
394eap1371_src_wait(struct eap_softc *sc)
395{
396	int to;
397	u_int32_t src;
398
399	for (to = 0; to < EAP_READ_TIMEOUT; to++) {
400		src = EREAD4(sc, E1371_SRC);
401		if (!(src & E1371_SRC_RBUSY))
402			return src;
403		delay(1);
404	}
405	aprint_error_dev(sc->sc_dev, "eap1371_src_wait timeout\n");
406	return src;
407}
408
409static int
410eap1371_src_read(struct eap_softc *sc, int a)
411{
412	int to;
413	uint32_t src, t;
414
415	src = eap1371_src_wait(sc) & E1371_SRC_CTLMASK;
416	src |= E1371_SRC_ADDR(a);
417	EWRITE4(sc, E1371_SRC, src | E1371_SRC_STATE_OK);
418
419	t = eap1371_src_wait(sc);
420	if ((t & E1371_SRC_STATE_MASK) != E1371_SRC_STATE_OK) {
421		for (to = 0; to < EAP_READ_TIMEOUT; to++) {
422			t = EREAD4(sc, E1371_SRC);
423			if ((t & E1371_SRC_STATE_MASK) == E1371_SRC_STATE_OK)
424				break;
425			delay(1);
426		}
427	}
428
429	EWRITE4(sc, E1371_SRC, src);
430
431	return t & E1371_SRC_DATAMASK;
432}
433
434static void
435eap1371_src_write(struct eap_softc *sc, int a, int d)
436{
437	uint32_t r;
438
439	r = eap1371_src_wait(sc) & E1371_SRC_CTLMASK;
440	r |= E1371_SRC_RAMWE | E1371_SRC_ADDR(a) | E1371_SRC_DATA(d);
441	EWRITE4(sc, E1371_SRC, r);
442}
443
444static void
445eap1371_set_adc_rate(struct eap_softc *sc, int rate)
446{
447	int freq, n, truncm;
448	int out;
449
450	/* Whatever, it works, so I'll leave it :) */
451
452	if (rate > 48000)
453		rate = 48000;
454	if (rate < 4000)
455		rate = 4000;
456	n = rate / 3000;
457	if ((1 << n) & SRC_MAGIC)
458		n--;
459	truncm = ((21 * n) - 1) | 1;
460	freq = ((48000 << 15) / rate) * n;
461	if (rate >= 24000) {
462		if (truncm > 239)
463			truncm = 239;
464		out = ESRC_SET_TRUNC((239 - truncm) / 2);
465	} else {
466		if (truncm > 119)
467			truncm = 119;
468		out = ESRC_SMF | ESRC_SET_TRUNC((119 - truncm) / 2);
469	}
470	out |= ESRC_SET_N(n);
471	mutex_spin_enter(&sc->sc_intr_lock);
472	eap1371_src_write(sc, ESRC_ADC+ESRC_TRUNC_N, out);
473
474	out = eap1371_src_read(sc, ESRC_ADC+ESRC_IREGS) & 0xff;
475	eap1371_src_write(sc, ESRC_ADC+ESRC_IREGS, out |
476			  ESRC_SET_VFI(freq >> 15));
477	eap1371_src_write(sc, ESRC_ADC+ESRC_VFF, freq & 0x7fff);
478	eap1371_src_write(sc, ESRC_ADC_VOLL, ESRC_SET_ADC_VOL(n));
479	eap1371_src_write(sc, ESRC_ADC_VOLR, ESRC_SET_ADC_VOL(n));
480	mutex_spin_exit(&sc->sc_intr_lock);
481}
482
483static void
484eap1371_set_dac_rate(struct eap_instance *ei, int rate)
485{
486	struct eap_softc *sc;
487	int dac;
488	int freq, r;
489
490	DPRINTFN(2, ("eap1371_set_dac_date: set rate for %d\n", ei->index));
491	sc = device_private(ei->parent);
492	dac = ei->index == EAP_DAC1 ? ESRC_DAC1 : ESRC_DAC2;
493
494	/* Whatever, it works, so I'll leave it :) */
495
496	if (rate > 48000)
497	    rate = 48000;
498	if (rate < 4000)
499	    rate = 4000;
500	freq = ((rate << 15) + 1500) / 3000;
501
502	mutex_spin_enter(&sc->sc_intr_lock);
503	eap1371_src_wait(sc);
504	r = EREAD4(sc, E1371_SRC) & (E1371_SRC_DISABLE |
505	    E1371_SRC_DISP2 | E1371_SRC_DISP1 | E1371_SRC_DISREC);
506	r |= ei->index == EAP_DAC1 ? E1371_SRC_DISP1 : E1371_SRC_DISP2;
507	EWRITE4(sc, E1371_SRC, r);
508	r = eap1371_src_read(sc, dac + ESRC_IREGS) & 0x00ff;
509	eap1371_src_write(sc, dac + ESRC_IREGS, r | ((freq >> 5) & 0xfc00));
510	eap1371_src_write(sc, dac + ESRC_VFF, freq & 0x7fff);
511	r = EREAD4(sc, E1371_SRC) & (E1371_SRC_DISABLE |
512	    E1371_SRC_DISP2 | E1371_SRC_DISP1 | E1371_SRC_DISREC);
513	r &= ~(ei->index == EAP_DAC1 ? E1371_SRC_DISP1 : E1371_SRC_DISP2);
514	EWRITE4(sc, E1371_SRC, r);
515	mutex_spin_exit(&sc->sc_intr_lock);
516}
517
518static void
519eap_attach(device_t parent, device_t self, void *aux)
520{
521	struct eap_softc *sc;
522	struct pci_attach_args *pa;
523	pci_chipset_tag_t pc;
524	const struct audio_hw_if *eap_hw_if;
525	char const *intrstr;
526	pci_intr_handle_t ih;
527	pcireg_t csr;
528	char devinfo[256];
529	mixer_ctrl_t ctl;
530	int i;
531	int revision, ct5880;
532	const char *revstr;
533#if NJOY_EAP > 0
534	struct eap_gameport_args gpargs;
535#endif
536
537	sc = device_private(self);
538	sc->sc_dev = self;
539	pa = (struct pci_attach_args *)aux;
540	pc = pa->pa_pc;
541	revstr = "";
542	aprint_naive(": Audio controller\n");
543
544	mutex_init(&sc->sc_lock, MUTEX_DEFAULT, IPL_NONE);
545	mutex_init(&sc->sc_intr_lock, MUTEX_DEFAULT, IPL_AUDIO);
546
547	/* Stash this away for detach */
548	sc->sc_pc = pc;
549
550	/* Flag if we're "creative" */
551	sc->sc_1371 = !(PCI_VENDOR(pa->pa_id) == PCI_VENDOR_ENSONIQ &&
552			PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_ENSONIQ_AUDIOPCI);
553
554	/*
555	 * The vendor and product ID's are quite "interesting". Just
556	 * trust the following and be happy.
557	 */
558	pci_devinfo(pa->pa_id, pa->pa_class, 0, devinfo, sizeof(devinfo));
559	revision = PCI_REVISION(pa->pa_class);
560	ct5880 = 0;
561	if (sc->sc_1371) {
562		if (PCI_VENDOR(pa->pa_id) == PCI_VENDOR_ENSONIQ &&
563		    PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_ENSONIQ_CT5880) {
564			ct5880 = 1;
565			switch (revision) {
566			case EAP_CT5880_C: revstr = "CT5880-C "; break;
567			case EAP_CT5880_D: revstr = "CT5880-D "; break;
568			case EAP_CT5880_E: revstr = "CT5880-E "; break;
569			}
570		} else {
571			switch (revision) {
572			case EAP_EV1938_A: revstr = "EV1938-A "; break;
573			case EAP_ES1373_A: revstr = "ES1373-A "; break;
574			case EAP_ES1373_B: revstr = "ES1373-B "; break;
575			case EAP_CT5880_A: revstr = "CT5880-A "; ct5880=1;break;
576			case EAP_ES1373_8: revstr = "ES1373-8" ; ct5880=1;break;
577			case EAP_ES1371_B: revstr = "ES1371-B "; break;
578			}
579		}
580	}
581	aprint_normal(": %s %s(rev. 0x%02x)\n", devinfo, revstr, revision);
582
583	/* Map I/O register */
584	if (pci_mapreg_map(pa, PCI_CBIO, PCI_MAPREG_TYPE_IO, 0,
585	      &sc->iot, &sc->ioh, NULL, &sc->iosz)) {
586		aprint_error_dev(sc->sc_dev, "can't map i/o space\n");
587		return;
588	}
589
590	sc->sc_dmatag = pa->pa_dmat;
591
592	/* Enable the device. */
593	csr = pci_conf_read(pc, pa->pa_tag, PCI_COMMAND_STATUS_REG);
594	pci_conf_write(pc, pa->pa_tag, PCI_COMMAND_STATUS_REG,
595		       csr | PCI_COMMAND_MASTER_ENABLE);
596
597	/* Map and establish the interrupt. */
598	if (pci_intr_map(pa, &ih)) {
599		aprint_error_dev(sc->sc_dev, "couldn't map interrupt\n");
600		return;
601	}
602	intrstr = pci_intr_string(pc, ih);
603	sc->sc_ih = pci_intr_establish(pc, ih, IPL_AUDIO, eap_intr, sc);
604	if (sc->sc_ih == NULL) {
605		aprint_error_dev(sc->sc_dev, "couldn't establish interrupt");
606		if (intrstr != NULL)
607			aprint_error(" at %s", intrstr);
608		aprint_error("\n");
609		return;
610	}
611	aprint_normal_dev(self, "interrupting at %s\n", intrstr);
612
613	sc->sc_ei[EAP_I1].parent = self;
614	sc->sc_ei[EAP_I1].index = EAP_DAC2;
615	sc->sc_ei[EAP_I2].parent = self;
616	sc->sc_ei[EAP_I2].index = EAP_DAC1;
617
618	if (!sc->sc_1371) {
619		/* Enable interrupts and looping mode. */
620		/* enable the parts we need */
621		EWRITE4(sc, EAP_SIC, EAP_P2_INTR_EN | EAP_R1_INTR_EN);
622		EWRITE4(sc, EAP_ICSC, EAP_CDC_EN);
623
624		/* reset codec */
625		/* normal operation */
626		/* select codec clocks */
627		eap1370_write_codec(sc, AK_RESET, AK_PD);
628		eap1370_write_codec(sc, AK_RESET, AK_PD | AK_NRST);
629		eap1370_write_codec(sc, AK_CS, 0x0);
630
631		eap_hw_if = &eap1370_hw_if;
632
633		/* Enable all relevant mixer switches. */
634		ctl.dev = EAP_INPUT_SOURCE;
635		ctl.type = AUDIO_MIXER_SET;
636		ctl.un.mask = 1 << EAP_VOICE_VOL | 1 << EAP_FM_VOL |
637			1 << EAP_CD_VOL | 1 << EAP_LINE_VOL | 1 << EAP_AUX_VOL |
638			1 << EAP_MIC_VOL;
639		eap_hw_if->set_port(&sc->sc_ei[EAP_I1], &ctl);
640
641		ctl.type = AUDIO_MIXER_VALUE;
642		ctl.un.value.num_channels = 1;
643		for (ctl.dev = EAP_MASTER_VOL; ctl.dev < EAP_MIC_VOL;
644		     ctl.dev++) {
645			ctl.un.value.level[AUDIO_MIXER_LEVEL_MONO] = VOL_0DB;
646			eap_hw_if->set_port(&sc->sc_ei[EAP_I1], &ctl);
647		}
648		ctl.un.value.level[AUDIO_MIXER_LEVEL_MONO] = 0;
649		eap_hw_if->set_port(&sc->sc_ei[EAP_I1], &ctl);
650		ctl.dev = EAP_MIC_PREAMP;
651		ctl.type = AUDIO_MIXER_ENUM;
652		ctl.un.ord = 0;
653		eap_hw_if->set_port(&sc->sc_ei[EAP_I1], &ctl);
654		ctl.dev = EAP_RECORD_SOURCE;
655		ctl.type = AUDIO_MIXER_SET;
656		ctl.un.mask = 1 << EAP_MIC_VOL;
657		eap_hw_if->set_port(&sc->sc_ei[EAP_I1], &ctl);
658	} else {
659		/* clean slate */
660
661		EWRITE4(sc, EAP_SIC, 0);
662		EWRITE4(sc, EAP_ICSC, 0);
663		EWRITE4(sc, E1371_LEGACY, 0);
664
665		if (ct5880) {
666			EWRITE4(sc, EAP_ICSS, EAP_CT5880_AC97_RESET);
667			/* Let codec wake up */
668			delay(20000);
669		}
670
671		/* Reset from es1371's perspective */
672		EWRITE4(sc, EAP_ICSC, E1371_SYNC_RES);
673		delay(20);
674		EWRITE4(sc, EAP_ICSC, 0);
675
676		/*
677		 * Must properly reprogram sample rate converter,
678		 * or it locks up.  Set some defaults for the life of the
679		 * machine, and set up a sb default sample rate.
680		 */
681		EWRITE4(sc, E1371_SRC, E1371_SRC_DISABLE);
682		for (i = 0; i < 0x80; i++)
683			eap1371_src_write(sc, i, 0);
684		eap1371_src_write(sc, ESRC_DAC1+ESRC_TRUNC_N, ESRC_SET_N(16));
685		eap1371_src_write(sc, ESRC_DAC2+ESRC_TRUNC_N, ESRC_SET_N(16));
686		eap1371_src_write(sc, ESRC_DAC1+ESRC_IREGS, ESRC_SET_VFI(16));
687		eap1371_src_write(sc, ESRC_DAC2+ESRC_IREGS, ESRC_SET_VFI(16));
688		eap1371_src_write(sc, ESRC_ADC_VOLL, ESRC_SET_ADC_VOL(16));
689		eap1371_src_write(sc, ESRC_ADC_VOLR, ESRC_SET_ADC_VOL(16));
690		eap1371_src_write(sc, ESRC_DAC1_VOLL, ESRC_SET_DAC_VOLI(1));
691		eap1371_src_write(sc, ESRC_DAC1_VOLR, ESRC_SET_DAC_VOLI(1));
692		eap1371_src_write(sc, ESRC_DAC2_VOLL, ESRC_SET_DAC_VOLI(1));
693		eap1371_src_write(sc, ESRC_DAC2_VOLR, ESRC_SET_DAC_VOLI(1));
694		eap1371_set_adc_rate(sc, 22050);
695		eap1371_set_dac_rate(&sc->sc_ei[0], 22050);
696		eap1371_set_dac_rate(&sc->sc_ei[1], 22050);
697
698		EWRITE4(sc, E1371_SRC, 0);
699
700		/* Reset codec */
701
702		/* Interrupt enable */
703		sc->host_if.arg = sc;
704		sc->host_if.attach = eap1371_attach_codec;
705		sc->host_if.read = eap1371_read_codec;
706		sc->host_if.write = eap1371_write_codec;
707		sc->host_if.reset = eap1371_reset_codec;
708
709		if (ac97_attach(&sc->host_if, self, &sc->sc_lock) == 0) {
710			/* Interrupt enable */
711			EWRITE4(sc, EAP_SIC, EAP_P2_INTR_EN | EAP_R1_INTR_EN);
712		} else
713			return;
714
715		eap_hw_if = &eap1371_hw_if;
716	}
717
718	sc->sc_ei[EAP_I1].ei_audiodev =
719	    audio_attach_mi(eap_hw_if, &sc->sc_ei[EAP_I1], sc->sc_dev);
720
721#ifdef EAP_USE_BOTH_DACS
722	aprint_normal_dev(self, "attaching secondary DAC\n");
723	sc->sc_ei[EAP_I2].ei_audiodev =
724	    audio_attach_mi(eap_hw_if, &sc->sc_ei[EAP_I2], sc->sc_dev);
725#endif
726
727#if NMIDI > 0
728	sc->sc_mididev = midi_attach_mi(&eap_midi_hw_if, sc, sc->sc_dev);
729#endif
730
731#if NJOY_EAP > 0
732	if (sc->sc_1371) {
733		gpargs.gpa_iot = sc->iot;
734		gpargs.gpa_ioh = sc->ioh;
735		sc->sc_gameport = eap_joy_attach(sc->sc_dev, &gpargs);
736	}
737#endif
738}
739
740static int
741eap_detach(device_t self, int flags)
742{
743	struct eap_softc *sc;
744	int res;
745#if NJOY_EAP > 0
746	struct eap_gameport_args gpargs;
747
748	sc = device_private(self);
749	if (sc->sc_gameport) {
750		gpargs.gpa_iot = sc->iot;
751		gpargs.gpa_ioh = sc->ioh;
752		res = eap_joy_detach(sc->sc_gameport, &gpargs);
753		if (res)
754			return res;
755	}
756#else
757	sc = device_private(self);
758#endif
759#if NMIDI > 0
760	if (sc->sc_mididev != NULL) {
761		res = config_detach(sc->sc_mididev, 0);
762		if (res)
763			return res;
764	}
765#endif
766#ifdef EAP_USE_BOTH_DACS
767	if (sc->sc_ei[EAP_I2].ei_audiodev != NULL) {
768		res = config_detach(sc->sc_ei[EAP_I2].ei_audiodev, 0);
769		if (res)
770			return res;
771	}
772#endif
773	if (sc->sc_ei[EAP_I1].ei_audiodev != NULL) {
774		res = config_detach(sc->sc_ei[EAP_I1].ei_audiodev, 0);
775		if (res)
776			return res;
777	}
778
779	bus_space_unmap(sc->iot, sc->ioh, sc->iosz);
780	pci_intr_disestablish(sc->sc_pc, sc->sc_ih);
781	mutex_destroy(&sc->sc_lock);
782	mutex_destroy(&sc->sc_intr_lock);
783
784	return 0;
785}
786
787static int
788eap1371_attach_codec(void *sc_, struct ac97_codec_if *codec_if)
789{
790	struct eap_softc *sc;
791
792	sc = sc_;
793	sc->codec_if = codec_if;
794	return 0;
795}
796
797static int
798eap1371_reset_codec(void *sc_)
799{
800	struct eap_softc *sc;
801	uint32_t icsc;
802
803	sc = sc_;
804	mutex_spin_enter(&sc->sc_intr_lock);
805	icsc = EREAD4(sc, EAP_ICSC);
806	EWRITE4(sc, EAP_ICSC, icsc | E1371_SYNC_RES);
807	delay(20);
808	EWRITE4(sc, EAP_ICSC, icsc & ~E1371_SYNC_RES);
809	delay(1);
810	mutex_spin_exit(&sc->sc_intr_lock);
811
812	return 0;
813}
814
815static int
816eap_intr(void *p)
817{
818	struct eap_softc *sc;
819	uint32_t intr, sic;
820
821	sc = p;
822	mutex_spin_enter(&sc->sc_intr_lock);
823	intr = EREAD4(sc, EAP_ICSS);
824	if (!(intr & EAP_INTR)) {
825		mutex_spin_exit(&sc->sc_intr_lock);
826		return 0;
827	}
828	sic = EREAD4(sc, EAP_SIC);
829	DPRINTFN(5, ("eap_intr: ICSS=0x%08x, SIC=0x%08x\n", intr, sic));
830	if (intr & EAP_I_ADC) {
831#if 0
832		/*
833		 * XXX This is a hack!
834		 * The EAP chip sometimes generates the recording interrupt
835		 * while it is still transferring the data.  To make sure
836		 * it has all arrived we busy wait until the count is right.
837		 * The transfer we are waiting for is 8 longwords.
838		 */
839		int s, nw, n;
840		EWRITE4(sc, EAP_MEMPAGE, EAP_ADC_PAGE);
841		s = EREAD4(sc, EAP_ADC_CSR);
842		nw = ((s & 0xffff) + 1) >> 2; /* # of words in DMA */
843		n = 0;
844		while (((EREAD4(sc, EAP_ADC_SIZE) >> 16) + 8) % nw == 0) {
845			delay(10);
846			if (++n > 100) {
847				printf("eapintr: DMA fix timeout");
848				break;
849			}
850		}
851		/* Continue with normal interrupt handling. */
852#endif
853		EWRITE4(sc, EAP_SIC, sic & ~EAP_R1_INTR_EN);
854		EWRITE4(sc, EAP_SIC, sic | EAP_R1_INTR_EN);
855		if (sc->sc_rintr)
856			sc->sc_rintr(sc->sc_rarg);
857	}
858
859	if (intr & EAP_I_DAC2) {
860		EWRITE4(sc, EAP_SIC, sic & ~EAP_P2_INTR_EN);
861		EWRITE4(sc, EAP_SIC, sic | EAP_P2_INTR_EN);
862		if (sc->sc_ei[EAP_DAC2].ei_pintr)
863			sc->sc_ei[EAP_DAC2].ei_pintr(sc->sc_ei[EAP_DAC2].ei_parg);
864	}
865
866	if (intr & EAP_I_DAC1) {
867		EWRITE4(sc, EAP_SIC, sic & ~EAP_P1_INTR_EN);
868		EWRITE4(sc, EAP_SIC, sic | EAP_P1_INTR_EN);
869		if (sc->sc_ei[EAP_DAC1].ei_pintr)
870			sc->sc_ei[EAP_DAC1].ei_pintr(sc->sc_ei[EAP_DAC1].ei_parg);
871	}
872
873	if (intr & EAP_I_MCCB)
874		panic("eap_intr: unexpected MCCB interrupt");
875#if NMIDI > 0
876	if (intr & EAP_I_UART) {
877		uint8_t ustat;
878		uint32_t data;
879
880		ustat = EREAD1(sc, EAP_UART_STATUS);
881
882		if (ustat & EAP_US_RXINT) {
883			while (EREAD1(sc, EAP_UART_STATUS) & EAP_US_RXRDY) {
884				data = EREAD1(sc, EAP_UART_DATA);
885				sc->sc_iintr(sc->sc_arg, data);
886			}
887		}
888
889		if (ustat & EAP_US_TXINT)
890			eap_uart_txrdy(sc);
891	}
892#endif
893	mutex_spin_exit(&sc->sc_intr_lock);
894	return 1;
895}
896
897static int
898eap_allocmem(struct eap_softc *sc, size_t size, size_t align, struct eap_dma *p)
899{
900	int error;
901
902	p->size = size;
903	error = bus_dmamem_alloc(sc->sc_dmatag, p->size, align, 0,
904				 p->segs, sizeof(p->segs)/sizeof(p->segs[0]),
905				 &p->nsegs, BUS_DMA_WAITOK);
906	if (error)
907		return error;
908
909	error = bus_dmamem_map(sc->sc_dmatag, p->segs, p->nsegs, p->size,
910			       &p->addr, BUS_DMA_WAITOK|BUS_DMA_COHERENT);
911	if (error)
912		goto free;
913
914	error = bus_dmamap_create(sc->sc_dmatag, p->size, 1, p->size,
915				  0, BUS_DMA_WAITOK, &p->map);
916	if (error)
917		goto unmap;
918
919	error = bus_dmamap_load(sc->sc_dmatag, p->map, p->addr, p->size, NULL,
920				BUS_DMA_WAITOK);
921	if (error)
922		goto destroy;
923	return (0);
924
925destroy:
926	bus_dmamap_destroy(sc->sc_dmatag, p->map);
927unmap:
928	bus_dmamem_unmap(sc->sc_dmatag, p->addr, p->size);
929free:
930	bus_dmamem_free(sc->sc_dmatag, p->segs, p->nsegs);
931	return error;
932}
933
934static int
935eap_freemem(struct eap_softc *sc, struct eap_dma *p)
936{
937
938	bus_dmamap_unload(sc->sc_dmatag, p->map);
939	bus_dmamap_destroy(sc->sc_dmatag, p->map);
940	bus_dmamem_unmap(sc->sc_dmatag, p->addr, p->size);
941	bus_dmamem_free(sc->sc_dmatag, p->segs, p->nsegs);
942	return 0;
943}
944
945static int
946eap_open(void *addr, int flags)
947{
948	struct eap_instance *ei;
949
950	ei = addr;
951	/* there is only one ADC */
952	if (ei->index == EAP_I2 && flags & FREAD)
953		return EOPNOTSUPP;
954
955	return 0;
956}
957
958static int
959eap_query_encoding(void *addr, struct audio_encoding *fp)
960{
961
962	switch (fp->index) {
963	case 0:
964		strcpy(fp->name, AudioEulinear);
965		fp->encoding = AUDIO_ENCODING_ULINEAR;
966		fp->precision = 8;
967		fp->flags = 0;
968		return 0;
969	case 1:
970		strcpy(fp->name, AudioEmulaw);
971		fp->encoding = AUDIO_ENCODING_ULAW;
972		fp->precision = 8;
973		fp->flags = AUDIO_ENCODINGFLAG_EMULATED;
974		return 0;
975	case 2:
976		strcpy(fp->name, AudioEalaw);
977		fp->encoding = AUDIO_ENCODING_ALAW;
978		fp->precision = 8;
979		fp->flags = AUDIO_ENCODINGFLAG_EMULATED;
980		return 0;
981	case 3:
982		strcpy(fp->name, AudioEslinear);
983		fp->encoding = AUDIO_ENCODING_SLINEAR;
984		fp->precision = 8;
985		fp->flags = AUDIO_ENCODINGFLAG_EMULATED;
986		return 0;
987	case 4:
988		strcpy(fp->name, AudioEslinear_le);
989		fp->encoding = AUDIO_ENCODING_SLINEAR_LE;
990		fp->precision = 16;
991		fp->flags = 0;
992		return 0;
993	case 5:
994		strcpy(fp->name, AudioEulinear_le);
995		fp->encoding = AUDIO_ENCODING_ULINEAR_LE;
996		fp->precision = 16;
997		fp->flags = AUDIO_ENCODINGFLAG_EMULATED;
998		return 0;
999	case 6:
1000		strcpy(fp->name, AudioEslinear_be);
1001		fp->encoding = AUDIO_ENCODING_SLINEAR_BE;
1002		fp->precision = 16;
1003		fp->flags = AUDIO_ENCODINGFLAG_EMULATED;
1004		return 0;
1005	case 7:
1006		strcpy(fp->name, AudioEulinear_be);
1007		fp->encoding = AUDIO_ENCODING_ULINEAR_BE;
1008		fp->precision = 16;
1009		fp->flags = AUDIO_ENCODINGFLAG_EMULATED;
1010		return 0;
1011	default:
1012		return EINVAL;
1013	}
1014}
1015
1016static int
1017eap_set_params(void *addr, int setmode, int usemode,
1018	       audio_params_t *play, audio_params_t *rec,
1019	       stream_filter_list_t *pfil, stream_filter_list_t *rfil)
1020{
1021	struct eap_instance *ei;
1022	struct eap_softc *sc;
1023	struct audio_params *p;
1024	stream_filter_list_t *fil;
1025	int mode, i;
1026	uint32_t div;
1027
1028	ei = addr;
1029	sc = device_private(ei->parent);
1030	/*
1031	 * The es1370 only has one clock, so make the sample rates match.
1032	 * This only applies for ADC/DAC2. The FM DAC is handled below.
1033	 */
1034	if (!sc->sc_1371 && ei->index == EAP_DAC2) {
1035		if (play->sample_rate != rec->sample_rate &&
1036		    usemode == (AUMODE_PLAY | AUMODE_RECORD)) {
1037			if (setmode == AUMODE_PLAY) {
1038				rec->sample_rate = play->sample_rate;
1039				setmode |= AUMODE_RECORD;
1040			} else if (setmode == AUMODE_RECORD) {
1041				play->sample_rate = rec->sample_rate;
1042				setmode |= AUMODE_PLAY;
1043			} else
1044				return EINVAL;
1045		}
1046	}
1047
1048	for (mode = AUMODE_RECORD; mode != -1;
1049	     mode = mode == AUMODE_RECORD ? AUMODE_PLAY : -1) {
1050		if ((setmode & mode) == 0)
1051			continue;
1052
1053		p = mode == AUMODE_PLAY ? play : rec;
1054
1055		if (p->sample_rate < 4000 || p->sample_rate > 48000 ||
1056		    (p->precision != 8 && p->precision != 16) ||
1057		    (p->channels != 1 && p->channels != 2))
1058			return EINVAL;
1059
1060		fil = mode == AUMODE_PLAY ? pfil : rfil;
1061		i = auconv_set_converter(eap_formats, EAP_NFORMATS,
1062					 mode, p, FALSE, fil);
1063		if (i < 0)
1064			return EINVAL;
1065	}
1066
1067	if (sc->sc_1371) {
1068		eap1371_set_dac_rate(ei, play->sample_rate);
1069		eap1371_set_adc_rate(sc, rec->sample_rate);
1070	} else if (ei->index == EAP_DAC2) {
1071		/* Set the speed */
1072		DPRINTFN(2, ("eap_set_params: old ICSC = 0x%08x\n",
1073			     EREAD4(sc, EAP_ICSC)));
1074		div = EREAD4(sc, EAP_ICSC) & ~EAP_PCLKBITS;
1075		/*
1076		 * XXX
1077		 * The -2 isn't documented, but seemed to make the wall
1078		 * time match
1079		 * what I expect.  - mycroft
1080		 */
1081		if (usemode == AUMODE_RECORD)
1082			div |= EAP_SET_PCLKDIV(EAP_XTAL_FREQ /
1083				rec->sample_rate - 2);
1084		else
1085			div |= EAP_SET_PCLKDIV(EAP_XTAL_FREQ /
1086				play->sample_rate - 2);
1087#if 0
1088		div |= EAP_CCB_INTRM;
1089#else
1090		/*
1091		 * It is not obvious how to acknowledge MCCB interrupts, so
1092		 * we had better not enable them.
1093		 */
1094#endif
1095		EWRITE4(sc, EAP_ICSC, div);
1096		DPRINTFN(2, ("eap_set_params: set ICSC = 0x%08x\n", div));
1097	} else {
1098		/*
1099		 * The FM DAC has only a few fixed-frequency choises, so
1100		 * pick out the best candidate.
1101		 */
1102		div = EREAD4(sc, EAP_ICSC);
1103		DPRINTFN(2, ("eap_set_params: old ICSC = 0x%08x\n", div));
1104
1105		div &= ~EAP_WTSRSEL;
1106		if (play->sample_rate < 8268)
1107			div |= EAP_WTSRSEL_5;
1108		else if (play->sample_rate < 16537)
1109			div |= EAP_WTSRSEL_11;
1110		else if (play->sample_rate < 33075)
1111			div |= EAP_WTSRSEL_22;
1112		else
1113			div |= EAP_WTSRSEL_44;
1114
1115		EWRITE4(sc, EAP_ICSC, div);
1116		DPRINTFN(2, ("eap_set_params: set ICSC = 0x%08x\n", div));
1117	}
1118
1119	return 0;
1120}
1121
1122static int
1123eap_round_blocksize(void *addr, int blk, int mode,
1124    const audio_params_t *param)
1125{
1126
1127	return blk & -32;	/* keep good alignment */
1128}
1129
1130static int
1131eap_trigger_output(
1132	void *addr,
1133	void *start,
1134	void *end,
1135	int blksize,
1136	void (*intr)(void *),
1137	void *arg,
1138	const audio_params_t *param)
1139{
1140	struct eap_instance *ei;
1141	struct eap_softc *sc;
1142	struct eap_dma *p;
1143	uint32_t icsc, sic;
1144	int sampshift;
1145
1146	ei = addr;
1147	sc = device_private(ei->parent);
1148#ifdef DIAGNOSTIC
1149	if (ei->ei_prun)
1150		panic("eap_trigger_output: already running");
1151	ei->ei_prun = 1;
1152#endif
1153
1154	DPRINTFN(1, ("eap_trigger_output: sc=%p start=%p end=%p "
1155	    "blksize=%d intr=%p(%p)\n", addr, start, end, blksize, intr, arg));
1156	ei->ei_pintr = intr;
1157	ei->ei_parg = arg;
1158
1159	sic = EREAD4(sc, EAP_SIC);
1160	sic &= ~(EAP_S_EB(ei->index) | EAP_S_MB(ei->index) | EAP_INC_BITS);
1161
1162	if (ei->index == EAP_DAC2)
1163		sic |= EAP_SET_P2_ST_INC(0)
1164		    | EAP_SET_P2_END_INC(param->precision / 8);
1165
1166	sampshift = 0;
1167	if (param->precision == 16) {
1168		sic |= EAP_S_EB(ei->index);
1169		sampshift++;
1170	}
1171	if (param->channels == 2) {
1172		sic |= EAP_S_MB(ei->index);
1173		sampshift++;
1174	}
1175	EWRITE4(sc, EAP_SIC, sic & ~EAP_P_INTR_EN(ei->index));
1176	EWRITE4(sc, EAP_SIC, sic | EAP_P_INTR_EN(ei->index));
1177
1178	for (p = sc->sc_dmas; p && KERNADDR(p) != start; p = p->next)
1179		continue;
1180	if (!p) {
1181		printf("eap_trigger_output: bad addr %p\n", start);
1182		return EINVAL;
1183	}
1184
1185	if (ei->index == EAP_DAC2) {
1186		DPRINTF(("eap_trigger_output: DAC2_ADDR=0x%x, DAC2_SIZE=0x%x\n",
1187			 (int)DMAADDR(p),
1188			 (int)EAP_SET_SIZE(0,
1189			 (((char *)end - (char *)start) >> 2) - 1)));
1190		EWRITE4(sc, EAP_MEMPAGE, EAP_DAC_PAGE);
1191		EWRITE4(sc, EAP_DAC2_ADDR, DMAADDR(p));
1192		EWRITE4(sc, EAP_DAC2_SIZE,
1193			EAP_SET_SIZE(0,
1194			((char *)end - (char *)start) >> 2) - 1);
1195		EWRITE4(sc, EAP_DAC2_CSR, (blksize >> sampshift) - 1);
1196	} else if (ei->index == EAP_DAC1) {
1197		DPRINTF(("eap_trigger_output: DAC1_ADDR=0x%x, DAC1_SIZE=0x%x\n",
1198			 (int)DMAADDR(p),
1199			 (int)EAP_SET_SIZE(0,
1200			 (((char *)end - (char *)start) >> 2) - 1)));
1201		EWRITE4(sc, EAP_MEMPAGE, EAP_DAC_PAGE);
1202		EWRITE4(sc, EAP_DAC1_ADDR, DMAADDR(p));
1203		EWRITE4(sc, EAP_DAC1_SIZE,
1204			EAP_SET_SIZE(0,
1205			((char *)end - (char *)start) >> 2) - 1);
1206		EWRITE4(sc, EAP_DAC1_CSR, (blksize >> sampshift) - 1);
1207	}
1208#ifdef DIAGNOSTIC
1209	else
1210		panic("eap_trigger_output: impossible instance %d", ei->index);
1211#endif
1212
1213	if (sc->sc_1371)
1214		EWRITE4(sc, E1371_SRC, 0);
1215
1216	icsc = EREAD4(sc, EAP_ICSC);
1217	icsc |= EAP_DAC_EN(ei->index);
1218	EWRITE4(sc, EAP_ICSC, icsc);
1219
1220	DPRINTFN(1, ("eap_trigger_output: set ICSC = 0x%08x\n", icsc));
1221
1222	return 0;
1223}
1224
1225static int
1226eap_trigger_input(
1227	void *addr,
1228	void *start,
1229	void *end,
1230	int blksize,
1231	void (*intr)(void *),
1232	void *arg,
1233	const audio_params_t *param)
1234{
1235	struct eap_instance *ei;
1236	struct eap_softc *sc;
1237	struct eap_dma *p;
1238	uint32_t icsc, sic;
1239	int sampshift;
1240
1241	ei = addr;
1242	sc = device_private(ei->parent);
1243#ifdef DIAGNOSTIC
1244	if (sc->sc_rrun)
1245		panic("eap_trigger_input: already running");
1246	sc->sc_rrun = 1;
1247#endif
1248
1249	DPRINTFN(1, ("eap_trigger_input: ei=%p start=%p end=%p blksize=%d intr=%p(%p)\n",
1250	    addr, start, end, blksize, intr, arg));
1251	sc->sc_rintr = intr;
1252	sc->sc_rarg = arg;
1253
1254	sic = EREAD4(sc, EAP_SIC);
1255	sic &= ~(EAP_R1_S_EB | EAP_R1_S_MB);
1256	sampshift = 0;
1257	if (param->precision == 16) {
1258		sic |= EAP_R1_S_EB;
1259		sampshift++;
1260	}
1261	if (param->channels == 2) {
1262		sic |= EAP_R1_S_MB;
1263		sampshift++;
1264	}
1265	EWRITE4(sc, EAP_SIC, sic & ~EAP_R1_INTR_EN);
1266	EWRITE4(sc, EAP_SIC, sic | EAP_R1_INTR_EN);
1267
1268	for (p = sc->sc_dmas; p && KERNADDR(p) != start; p = p->next)
1269		continue;
1270	if (!p) {
1271		printf("eap_trigger_input: bad addr %p\n", start);
1272		return (EINVAL);
1273	}
1274
1275	DPRINTF(("eap_trigger_input: ADC_ADDR=0x%x, ADC_SIZE=0x%x\n",
1276		 (int)DMAADDR(p),
1277		 (int)EAP_SET_SIZE(0, (((char *)end - (char *)start) >> 2) - 1)));
1278	EWRITE4(sc, EAP_MEMPAGE, EAP_ADC_PAGE);
1279	EWRITE4(sc, EAP_ADC_ADDR, DMAADDR(p));
1280	EWRITE4(sc, EAP_ADC_SIZE,
1281		EAP_SET_SIZE(0, (((char *)end - (char *)start) >> 2) - 1));
1282
1283	EWRITE4(sc, EAP_ADC_CSR, (blksize >> sampshift) - 1);
1284
1285	if (sc->sc_1371)
1286		EWRITE4(sc, E1371_SRC, 0);
1287
1288	icsc = EREAD4(sc, EAP_ICSC);
1289	icsc |= EAP_ADC_EN;
1290	EWRITE4(sc, EAP_ICSC, icsc);
1291
1292	DPRINTFN(1, ("eap_trigger_input: set ICSC = 0x%08x\n", icsc));
1293
1294	return 0;
1295}
1296
1297static int
1298eap_halt_output(void *addr)
1299{
1300	struct eap_instance *ei;
1301	struct eap_softc *sc;
1302	uint32_t icsc;
1303
1304	DPRINTF(("eap: eap_halt_output\n"));
1305	ei = addr;
1306	sc = device_private(ei->parent);
1307	icsc = EREAD4(sc, EAP_ICSC);
1308	EWRITE4(sc, EAP_ICSC, icsc & ~(EAP_DAC_EN(ei->index)));
1309	ei->ei_pintr = 0;
1310#ifdef DIAGNOSTIC
1311	ei->ei_prun = 0;
1312#endif
1313
1314	return 0;
1315}
1316
1317static int
1318eap_halt_input(void *addr)
1319{
1320	struct eap_instance *ei;
1321	struct eap_softc *sc;
1322	uint32_t icsc;
1323
1324#define EAP_USE_FMDAC_ALSO
1325	DPRINTF(("eap: eap_halt_input\n"));
1326	ei = addr;
1327	sc = device_private(ei->parent);
1328	icsc = EREAD4(sc, EAP_ICSC);
1329	EWRITE4(sc, EAP_ICSC, icsc & ~EAP_ADC_EN);
1330	sc->sc_rintr = 0;
1331#ifdef DIAGNOSTIC
1332	sc->sc_rrun = 0;
1333#endif
1334
1335	return 0;
1336}
1337
1338static int
1339eap_getdev(void *addr, struct audio_device *retp)
1340{
1341
1342	*retp = eap_device;
1343	return 0;
1344}
1345
1346static int
1347eap1371_mixer_set_port(void *addr, mixer_ctrl_t *cp)
1348{
1349	struct eap_instance *ei;
1350	struct eap_softc *sc;
1351
1352	ei = addr;
1353	sc = device_private(ei->parent);
1354	return sc->codec_if->vtbl->mixer_set_port(sc->codec_if, cp);
1355}
1356
1357static int
1358eap1371_mixer_get_port(void *addr, mixer_ctrl_t *cp)
1359{
1360	struct eap_instance *ei;
1361	struct eap_softc *sc;
1362
1363	ei = addr;
1364	sc = device_private(ei->parent);
1365	return sc->codec_if->vtbl->mixer_get_port(sc->codec_if, cp);
1366}
1367
1368static int
1369eap1371_query_devinfo(void *addr, mixer_devinfo_t *dip)
1370{
1371	struct eap_instance *ei;
1372	struct eap_softc *sc;
1373
1374	ei = addr;
1375	sc = device_private(ei->parent);
1376	return sc->codec_if->vtbl->query_devinfo(sc->codec_if, dip);
1377}
1378
1379static void
1380eap1370_set_mixer(struct eap_softc *sc, int a, int d)
1381{
1382	eap1370_write_codec(sc, a, d);
1383
1384	sc->sc_port[a] = d;
1385	DPRINTFN(1, ("eap1370_mixer_set_port port 0x%02x = 0x%02x\n", a, d));
1386}
1387
1388static int
1389eap1370_mixer_set_port(void *addr, mixer_ctrl_t *cp)
1390{
1391	struct eap_instance *ei;
1392	struct eap_softc *sc;
1393	int lval, rval, l, r, la, ra;
1394	int l1, r1, l2, r2, m, o1, o2;
1395
1396	ei = addr;
1397	sc = device_private(ei->parent);
1398	if (cp->dev == EAP_RECORD_SOURCE) {
1399		if (cp->type != AUDIO_MIXER_SET)
1400			return EINVAL;
1401		m = sc->sc_record_source = cp->un.mask;
1402		l1 = l2 = r1 = r2 = 0;
1403		if (m & (1 << EAP_VOICE_VOL))
1404			l2 |= AK_M_VOICE, r2 |= AK_M_VOICE;
1405		if (m & (1 << EAP_FM_VOL))
1406			l1 |= AK_M_FM_L, r1 |= AK_M_FM_R;
1407		if (m & (1 << EAP_CD_VOL))
1408			l1 |= AK_M_CD_L, r1 |= AK_M_CD_R;
1409		if (m & (1 << EAP_LINE_VOL))
1410			l1 |= AK_M_LINE_L, r1 |= AK_M_LINE_R;
1411		if (m & (1 << EAP_AUX_VOL))
1412			l2 |= AK_M2_AUX_L, r2 |= AK_M2_AUX_R;
1413		if (m & (1 << EAP_MIC_VOL))
1414			l2 |= AK_M_TMIC, r2 |= AK_M_TMIC;
1415		eap1370_set_mixer(sc, AK_IN_MIXER1_L, l1);
1416		eap1370_set_mixer(sc, AK_IN_MIXER1_R, r1);
1417		eap1370_set_mixer(sc, AK_IN_MIXER2_L, l2);
1418		eap1370_set_mixer(sc, AK_IN_MIXER2_R, r2);
1419		return 0;
1420	}
1421	if (cp->dev == EAP_INPUT_SOURCE) {
1422		if (cp->type != AUDIO_MIXER_SET)
1423			return EINVAL;
1424		m = sc->sc_input_source = cp->un.mask;
1425		o1 = o2 = 0;
1426		if (m & (1 << EAP_VOICE_VOL))
1427			o2 |= AK_M_VOICE_L | AK_M_VOICE_R;
1428		if (m & (1 << EAP_FM_VOL))
1429			o1 |= AK_M_FM_L | AK_M_FM_R;
1430		if (m & (1 << EAP_CD_VOL))
1431			o1 |= AK_M_CD_L | AK_M_CD_R;
1432		if (m & (1 << EAP_LINE_VOL))
1433			o1 |= AK_M_LINE_L | AK_M_LINE_R;
1434		if (m & (1 << EAP_AUX_VOL))
1435			o2 |= AK_M_AUX_L | AK_M_AUX_R;
1436		if (m & (1 << EAP_MIC_VOL))
1437			o1 |= AK_M_MIC;
1438		eap1370_set_mixer(sc, AK_OUT_MIXER1, o1);
1439		eap1370_set_mixer(sc, AK_OUT_MIXER2, o2);
1440		return 0;
1441	}
1442	if (cp->dev == EAP_MIC_PREAMP) {
1443		if (cp->type != AUDIO_MIXER_ENUM)
1444			return EINVAL;
1445		if (cp->un.ord != 0 && cp->un.ord != 1)
1446			return EINVAL;
1447		sc->sc_mic_preamp = cp->un.ord;
1448		eap1370_set_mixer(sc, AK_MGAIN, cp->un.ord);
1449		return 0;
1450	}
1451	if (cp->type != AUDIO_MIXER_VALUE)
1452		return EINVAL;
1453	if (cp->un.value.num_channels == 1)
1454		lval = rval = cp->un.value.level[AUDIO_MIXER_LEVEL_MONO];
1455	else if (cp->un.value.num_channels == 2) {
1456		lval = cp->un.value.level[AUDIO_MIXER_LEVEL_LEFT];
1457		rval = cp->un.value.level[AUDIO_MIXER_LEVEL_RIGHT];
1458	} else
1459		return EINVAL;
1460	ra = -1;
1461	switch (cp->dev) {
1462	case EAP_MASTER_VOL:
1463		l = VOL_TO_ATT5(lval);
1464		r = VOL_TO_ATT5(rval);
1465		la = AK_MASTER_L;
1466		ra = AK_MASTER_R;
1467		break;
1468	case EAP_MIC_VOL:
1469		if (cp->un.value.num_channels != 1)
1470			return EINVAL;
1471		la = AK_MIC;
1472		goto lr;
1473	case EAP_VOICE_VOL:
1474		la = AK_VOICE_L;
1475		ra = AK_VOICE_R;
1476		goto lr;
1477	case EAP_FM_VOL:
1478		la = AK_FM_L;
1479		ra = AK_FM_R;
1480		goto lr;
1481	case EAP_CD_VOL:
1482		la = AK_CD_L;
1483		ra = AK_CD_R;
1484		goto lr;
1485	case EAP_LINE_VOL:
1486		la = AK_LINE_L;
1487		ra = AK_LINE_R;
1488		goto lr;
1489	case EAP_AUX_VOL:
1490		la = AK_AUX_L;
1491		ra = AK_AUX_R;
1492	lr:
1493		l = VOL_TO_GAIN5(lval);
1494		r = VOL_TO_GAIN5(rval);
1495		break;
1496	default:
1497		return EINVAL;
1498	}
1499	eap1370_set_mixer(sc, la, l);
1500	if (ra >= 0) {
1501		eap1370_set_mixer(sc, ra, r);
1502	}
1503	return 0;
1504}
1505
1506static int
1507eap1370_mixer_get_port(void *addr, mixer_ctrl_t *cp)
1508{
1509	struct eap_instance *ei;
1510	struct eap_softc *sc;
1511	int la, ra, l, r;
1512
1513	ei = addr;
1514	sc = device_private(ei->parent);
1515	switch (cp->dev) {
1516	case EAP_RECORD_SOURCE:
1517		if (cp->type != AUDIO_MIXER_SET)
1518			return EINVAL;
1519		cp->un.mask = sc->sc_record_source;
1520		return 0;
1521	case EAP_INPUT_SOURCE:
1522		if (cp->type != AUDIO_MIXER_SET)
1523			return EINVAL;
1524		cp->un.mask = sc->sc_input_source;
1525		return 0;
1526	case EAP_MIC_PREAMP:
1527		if (cp->type != AUDIO_MIXER_ENUM)
1528			return EINVAL;
1529		cp->un.ord = sc->sc_mic_preamp;
1530		return 0;
1531	case EAP_MASTER_VOL:
1532		l = ATT5_TO_VOL(sc->sc_port[AK_MASTER_L]);
1533		r = ATT5_TO_VOL(sc->sc_port[AK_MASTER_R]);
1534		break;
1535	case EAP_MIC_VOL:
1536		if (cp->un.value.num_channels != 1)
1537			return EINVAL;
1538		la = ra = AK_MIC;
1539		goto lr;
1540	case EAP_VOICE_VOL:
1541		la = AK_VOICE_L;
1542		ra = AK_VOICE_R;
1543		goto lr;
1544	case EAP_FM_VOL:
1545		la = AK_FM_L;
1546		ra = AK_FM_R;
1547		goto lr;
1548	case EAP_CD_VOL:
1549		la = AK_CD_L;
1550		ra = AK_CD_R;
1551		goto lr;
1552	case EAP_LINE_VOL:
1553		la = AK_LINE_L;
1554		ra = AK_LINE_R;
1555		goto lr;
1556	case EAP_AUX_VOL:
1557		la = AK_AUX_L;
1558		ra = AK_AUX_R;
1559	lr:
1560		l = GAIN5_TO_VOL(sc->sc_port[la]);
1561		r = GAIN5_TO_VOL(sc->sc_port[ra]);
1562		break;
1563	default:
1564		return EINVAL;
1565	}
1566	if (cp->un.value.num_channels == 1)
1567		cp->un.value.level[AUDIO_MIXER_LEVEL_MONO] = (l+r) / 2;
1568	else if (cp->un.value.num_channels == 2) {
1569		cp->un.value.level[AUDIO_MIXER_LEVEL_LEFT]  = l;
1570		cp->un.value.level[AUDIO_MIXER_LEVEL_RIGHT] = r;
1571	} else
1572		return EINVAL;
1573	return 0;
1574}
1575
1576static int
1577eap1370_query_devinfo(void *addr, mixer_devinfo_t *dip)
1578{
1579
1580	switch (dip->index) {
1581	case EAP_MASTER_VOL:
1582		dip->type = AUDIO_MIXER_VALUE;
1583		dip->mixer_class = EAP_OUTPUT_CLASS;
1584		dip->prev = dip->next = AUDIO_MIXER_LAST;
1585		strcpy(dip->label.name, AudioNmaster);
1586		dip->un.v.num_channels = 2;
1587		dip->un.v.delta = 8;
1588		strcpy(dip->un.v.units.name, AudioNvolume);
1589		return 0;
1590	case EAP_VOICE_VOL:
1591		dip->type = AUDIO_MIXER_VALUE;
1592		dip->mixer_class = EAP_INPUT_CLASS;
1593		dip->prev = AUDIO_MIXER_LAST;
1594		dip->next = AUDIO_MIXER_LAST;
1595		strcpy(dip->label.name, AudioNdac);
1596		dip->un.v.num_channels = 2;
1597		dip->un.v.delta = 8;
1598		strcpy(dip->un.v.units.name, AudioNvolume);
1599		return 0;
1600	case EAP_FM_VOL:
1601		dip->type = AUDIO_MIXER_VALUE;
1602		dip->mixer_class = EAP_INPUT_CLASS;
1603		dip->prev = AUDIO_MIXER_LAST;
1604		dip->next = AUDIO_MIXER_LAST;
1605		strcpy(dip->label.name, AudioNfmsynth);
1606		dip->un.v.num_channels = 2;
1607		dip->un.v.delta = 8;
1608		strcpy(dip->un.v.units.name, AudioNvolume);
1609		return 0;
1610	case EAP_CD_VOL:
1611		dip->type = AUDIO_MIXER_VALUE;
1612		dip->mixer_class = EAP_INPUT_CLASS;
1613		dip->prev = AUDIO_MIXER_LAST;
1614		dip->next = AUDIO_MIXER_LAST;
1615		strcpy(dip->label.name, AudioNcd);
1616		dip->un.v.num_channels = 2;
1617		dip->un.v.delta = 8;
1618		strcpy(dip->un.v.units.name, AudioNvolume);
1619		return 0;
1620	case EAP_LINE_VOL:
1621		dip->type = AUDIO_MIXER_VALUE;
1622		dip->mixer_class = EAP_INPUT_CLASS;
1623		dip->prev = AUDIO_MIXER_LAST;
1624		dip->next = AUDIO_MIXER_LAST;
1625		strcpy(dip->label.name, AudioNline);
1626		dip->un.v.num_channels = 2;
1627		dip->un.v.delta = 8;
1628		strcpy(dip->un.v.units.name, AudioNvolume);
1629		return 0;
1630	case EAP_AUX_VOL:
1631		dip->type = AUDIO_MIXER_VALUE;
1632		dip->mixer_class = EAP_INPUT_CLASS;
1633		dip->prev = AUDIO_MIXER_LAST;
1634		dip->next = AUDIO_MIXER_LAST;
1635		strcpy(dip->label.name, AudioNaux);
1636		dip->un.v.num_channels = 2;
1637		dip->un.v.delta = 8;
1638		strcpy(dip->un.v.units.name, AudioNvolume);
1639		return 0;
1640	case EAP_MIC_VOL:
1641		dip->type = AUDIO_MIXER_VALUE;
1642		dip->mixer_class = EAP_INPUT_CLASS;
1643		dip->prev = AUDIO_MIXER_LAST;
1644		dip->next = EAP_MIC_PREAMP;
1645		strcpy(dip->label.name, AudioNmicrophone);
1646		dip->un.v.num_channels = 1;
1647		dip->un.v.delta = 8;
1648		strcpy(dip->un.v.units.name, AudioNvolume);
1649		return 0;
1650	case EAP_RECORD_SOURCE:
1651		dip->mixer_class = EAP_RECORD_CLASS;
1652		dip->prev = dip->next = AUDIO_MIXER_LAST;
1653		strcpy(dip->label.name, AudioNsource);
1654		dip->type = AUDIO_MIXER_SET;
1655		dip->un.s.num_mem = 6;
1656		strcpy(dip->un.s.member[0].label.name, AudioNmicrophone);
1657		dip->un.s.member[0].mask = 1 << EAP_MIC_VOL;
1658		strcpy(dip->un.s.member[1].label.name, AudioNcd);
1659		dip->un.s.member[1].mask = 1 << EAP_CD_VOL;
1660		strcpy(dip->un.s.member[2].label.name, AudioNline);
1661		dip->un.s.member[2].mask = 1 << EAP_LINE_VOL;
1662		strcpy(dip->un.s.member[3].label.name, AudioNfmsynth);
1663		dip->un.s.member[3].mask = 1 << EAP_FM_VOL;
1664		strcpy(dip->un.s.member[4].label.name, AudioNaux);
1665		dip->un.s.member[4].mask = 1 << EAP_AUX_VOL;
1666		strcpy(dip->un.s.member[5].label.name, AudioNdac);
1667		dip->un.s.member[5].mask = 1 << EAP_VOICE_VOL;
1668		return 0;
1669	case EAP_INPUT_SOURCE:
1670		dip->mixer_class = EAP_INPUT_CLASS;
1671		dip->prev = dip->next = AUDIO_MIXER_LAST;
1672		strcpy(dip->label.name, AudioNsource);
1673		dip->type = AUDIO_MIXER_SET;
1674		dip->un.s.num_mem = 6;
1675		strcpy(dip->un.s.member[0].label.name, AudioNmicrophone);
1676		dip->un.s.member[0].mask = 1 << EAP_MIC_VOL;
1677		strcpy(dip->un.s.member[1].label.name, AudioNcd);
1678		dip->un.s.member[1].mask = 1 << EAP_CD_VOL;
1679		strcpy(dip->un.s.member[2].label.name, AudioNline);
1680		dip->un.s.member[2].mask = 1 << EAP_LINE_VOL;
1681		strcpy(dip->un.s.member[3].label.name, AudioNfmsynth);
1682		dip->un.s.member[3].mask = 1 << EAP_FM_VOL;
1683		strcpy(dip->un.s.member[4].label.name, AudioNaux);
1684		dip->un.s.member[4].mask = 1 << EAP_AUX_VOL;
1685		strcpy(dip->un.s.member[5].label.name, AudioNdac);
1686		dip->un.s.member[5].mask = 1 << EAP_VOICE_VOL;
1687		return 0;
1688	case EAP_MIC_PREAMP:
1689		dip->type = AUDIO_MIXER_ENUM;
1690		dip->mixer_class = EAP_INPUT_CLASS;
1691		dip->prev = EAP_MIC_VOL;
1692		dip->next = AUDIO_MIXER_LAST;
1693		strcpy(dip->label.name, AudioNpreamp);
1694		dip->un.e.num_mem = 2;
1695		strcpy(dip->un.e.member[0].label.name, AudioNoff);
1696		dip->un.e.member[0].ord = 0;
1697		strcpy(dip->un.e.member[1].label.name, AudioNon);
1698		dip->un.e.member[1].ord = 1;
1699		return 0;
1700	case EAP_OUTPUT_CLASS:
1701		dip->type = AUDIO_MIXER_CLASS;
1702		dip->mixer_class = EAP_OUTPUT_CLASS;
1703		dip->next = dip->prev = AUDIO_MIXER_LAST;
1704		strcpy(dip->label.name, AudioCoutputs);
1705		return 0;
1706	case EAP_RECORD_CLASS:
1707		dip->type = AUDIO_MIXER_CLASS;
1708		dip->mixer_class = EAP_RECORD_CLASS;
1709		dip->next = dip->prev = AUDIO_MIXER_LAST;
1710		strcpy(dip->label.name, AudioCrecord);
1711		return 0;
1712	case EAP_INPUT_CLASS:
1713		dip->type = AUDIO_MIXER_CLASS;
1714		dip->mixer_class = EAP_INPUT_CLASS;
1715		dip->next = dip->prev = AUDIO_MIXER_LAST;
1716		strcpy(dip->label.name, AudioCinputs);
1717		return 0;
1718	}
1719	return ENXIO;
1720}
1721
1722static void *
1723eap_malloc(void *addr, int direction, size_t size)
1724{
1725	struct eap_instance *ei;
1726	struct eap_softc *sc;
1727	struct eap_dma *p;
1728	int error;
1729
1730	p = kmem_alloc(sizeof(*p), KM_SLEEP);
1731	if (!p)
1732		return NULL;
1733	ei = addr;
1734	sc = device_private(ei->parent);
1735	error = eap_allocmem(sc, size, 16, p);
1736	if (error) {
1737		kmem_free(p, sizeof(*p));
1738		return NULL;
1739	}
1740	p->next = sc->sc_dmas;
1741	sc->sc_dmas = p;
1742	return KERNADDR(p);
1743}
1744
1745static void
1746eap_free(void *addr, void *ptr, size_t size)
1747{
1748	struct eap_instance *ei;
1749	struct eap_softc *sc;
1750	struct eap_dma **pp, *p;
1751
1752	ei = addr;
1753	sc = device_private(ei->parent);
1754	for (pp = &sc->sc_dmas; (p = *pp) != NULL; pp = &p->next) {
1755		if (KERNADDR(p) == ptr) {
1756			eap_freemem(sc, p);
1757			*pp = p->next;
1758			kmem_free(p, sizeof(*p));
1759			return;
1760		}
1761	}
1762}
1763
1764static size_t
1765eap_round_buffersize(void *addr, int direction, size_t size)
1766{
1767
1768	return size;
1769}
1770
1771static paddr_t
1772eap_mappage(void *addr, void *mem, off_t off, int prot)
1773{
1774	struct eap_instance *ei;
1775	struct eap_softc *sc;
1776	struct eap_dma *p;
1777
1778	if (off < 0)
1779		return -1;
1780	ei = addr;
1781	sc = device_private(ei->parent);
1782	for (p = sc->sc_dmas; p && KERNADDR(p) != mem; p = p->next)
1783		continue;
1784	if (!p)
1785		return -1;
1786
1787	return bus_dmamem_mmap(sc->sc_dmatag, p->segs, p->nsegs,
1788			       off, prot, BUS_DMA_WAITOK);
1789}
1790
1791static int
1792eap_get_props(void *addr)
1793{
1794
1795	return AUDIO_PROP_MMAP | AUDIO_PROP_INDEPENDENT |
1796	    AUDIO_PROP_FULLDUPLEX;
1797}
1798
1799static void
1800eap_get_locks(void *addr, kmutex_t **intr, kmutex_t **thread)
1801{
1802	struct eap_instance *ei;
1803	struct eap_softc *sc;
1804
1805	ei = addr;
1806	sc = device_private(ei->parent);
1807	*intr = &sc->sc_intr_lock;
1808	*thread = &sc->sc_lock;
1809}
1810
1811#if NMIDI > 0
1812static int
1813eap_midi_open(void *addr, int flags,
1814	      void (*iintr)(void *, int),
1815	      void (*ointr)(void *),
1816	      void *arg)
1817{
1818	struct eap_softc *sc;
1819	uint8_t uctrl;
1820
1821	sc = addr;
1822	sc->sc_arg = arg;
1823
1824	EWRITE4(sc, EAP_ICSC, EREAD4(sc, EAP_ICSC) | EAP_UART_EN);
1825	uctrl = 0;
1826	if (flags & FREAD) {
1827		uctrl |= EAP_UC_RXINTEN;
1828		sc->sc_iintr = iintr;
1829	}
1830	if (flags & FWRITE)
1831		sc->sc_ointr = ointr;
1832	EWRITE1(sc, EAP_UART_CONTROL, uctrl);
1833
1834	return 0;
1835}
1836
1837static void
1838eap_midi_close(void *addr)
1839{
1840	struct eap_softc *sc;
1841
1842	sc = addr;
1843	/* give uart a chance to drain */
1844	(void)kpause("eapclm", false, hz/10, &sc->sc_intr_lock);
1845	EWRITE1(sc, EAP_UART_CONTROL, 0);
1846	EWRITE4(sc, EAP_ICSC, EREAD4(sc, EAP_ICSC) & ~EAP_UART_EN);
1847
1848	sc->sc_iintr = 0;
1849	sc->sc_ointr = 0;
1850}
1851
1852static int
1853eap_midi_output(void *addr, int d)
1854{
1855	struct eap_softc *sc;
1856	uint8_t uctrl;
1857
1858	sc = addr;
1859	EWRITE1(sc, EAP_UART_DATA, d);
1860
1861	uctrl = EAP_UC_TXINTEN;
1862	if (sc->sc_iintr)
1863		uctrl |= EAP_UC_RXINTEN;
1864	/*
1865	 * This is a write-only register, so we have to remember the right
1866	 * value of RXINTEN as well as setting TXINTEN. But if we are open
1867	 * for reading, it will always be correct to set RXINTEN here; only
1868	 * during service of a receive interrupt could it be momentarily
1869	 * toggled off, and whether we got here from the top half or from
1870	 * an interrupt, that won't be the current state.
1871	 */
1872	EWRITE1(sc, EAP_UART_CONTROL, uctrl);
1873	return 0;
1874}
1875
1876static void
1877eap_midi_getinfo(void *addr, struct midi_info *mi)
1878{
1879	mi->name = "AudioPCI MIDI UART";
1880	mi->props = MIDI_PROP_CAN_INPUT | MIDI_PROP_OUT_INTR;
1881}
1882
1883static void
1884eap_uart_txrdy(struct eap_softc *sc)
1885{
1886	uint8_t uctrl;
1887	uctrl = 0;
1888	if (sc->sc_iintr)
1889		uctrl = EAP_UC_RXINTEN;
1890	EWRITE1(sc, EAP_UART_CONTROL, uctrl);
1891	sc->sc_ointr(sc->sc_arg);
1892}
1893
1894#endif
1895