xref: /netbsd-src/sys/dev/isa/ym.c (revision aaf4ece63a859a04e37cf3a7229b5fab0157cc06)
1 /*	$NetBSD: ym.c,v 1.27 2005/12/24 20:27:41 perry Exp $	*/
2 
3 /*-
4  * Copyright (c) 1999-2002 The NetBSD Foundation, Inc.
5  * All rights reserved.
6  *
7  * This code is derived from software contributed to The NetBSD Foundation
8  * by ITOH Yasufumi.
9  *
10  * Redistribution and use in source and binary forms, with or without
11  * modification, are permitted provided that the following conditions
12  * are met:
13  * 1. Redistributions of source code must retain the above copyright
14  *    notice, this list of conditions and the following disclaimer.
15  * 2. Redistributions in binary form must reproduce the above copyright
16  *    notice, this list of conditions and the following disclaimer in the
17  *    documentation and/or other materials provided with the distribution.
18  * 3. All advertising materials mentioning features or use of this software
19  *    must display the following acknowledgement:
20  *	This product includes software developed by the NetBSD
21  *	Foundation, Inc. and its contributors.
22  * 4. Neither the name of The NetBSD Foundation nor the names of its
23  *    contributors may be used to endorse or promote products derived
24  *    from this software without specific prior written permission.
25  *
26  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
27  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
28  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
29  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
30  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
31  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
32  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
33  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
34  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
35  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
36  * POSSIBILITY OF SUCH DAMAGE.
37  */
38 
39 /*
40  * Copyright (c) 1998 Constantine Sapuntzakis. All rights reserved.
41  *
42  * Redistribution and use in source and binary forms, with or without
43  * modification, are permitted provided that the following conditions
44  * are met:
45  * 1. Redistributions of source code must retain the above copyright
46  *    notice, this list of conditions and the following disclaimer.
47  * 2. Redistributions in binary form must reproduce the above copyright
48  *    notice, this list of conditions and the following disclaimer in the
49  *    documentation and/or other materials provided with the distribution.
50  * 3. The name of the author may not be used to endorse or promote products
51  *    derived from this software without specific prior written permission.
52  *
53  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
54  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
55  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
56  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
57  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
58  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
59  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
60  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
61  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
62  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
63  */
64 
65 /*
66  *  Original code from OpenBSD.
67  */
68 
69 #include <sys/cdefs.h>
70 __KERNEL_RCSID(0, "$NetBSD: ym.c,v 1.27 2005/12/24 20:27:41 perry Exp $");
71 
72 #include "mpu_ym.h"
73 #include "opt_ym.h"
74 
75 #include <sys/param.h>
76 #include <sys/systm.h>
77 #include <sys/errno.h>
78 #include <sys/device.h>
79 #include <sys/fcntl.h>
80 #include <sys/kernel.h>
81 #include <sys/proc.h>
82 
83 #include <machine/cpu.h>
84 #include <machine/intr.h>
85 #include <machine/bus.h>
86 
87 #include <sys/audioio.h>
88 #include <dev/audio_if.h>
89 
90 #include <dev/isa/isavar.h>
91 #include <dev/isa/isadmavar.h>
92 
93 #include <dev/ic/ad1848reg.h>
94 #include <dev/isa/ad1848var.h>
95 #include <dev/ic/opl3sa3reg.h>
96 #include <dev/isa/wssreg.h>
97 #if NMPU_YM > 0
98 #include <dev/ic/mpuvar.h>
99 #endif
100 #include <dev/isa/ymvar.h>
101 #include <dev/isa/sbreg.h>
102 
103 #ifndef spllowersoftclock
104  #error "We depend on the new semantics of splsoftclock(9)."
105 #endif
106 
107 /* Power management mode. */
108 #ifndef YM_POWER_MODE
109 #define YM_POWER_MODE		YM_POWER_POWERSAVE
110 #endif
111 
112 /* Time in second before power down the chip. */
113 #ifndef YM_POWER_OFF_SEC
114 #define YM_POWER_OFF_SEC	5
115 #endif
116 
117 /* Default mixer settings. */
118 #ifndef YM_VOL_MASTER
119 #define YM_VOL_MASTER		208
120 #endif
121 
122 #ifndef YM_VOL_DAC
123 #define YM_VOL_DAC		224
124 #endif
125 
126 #ifndef YM_VOL_OPL3
127 #define YM_VOL_OPL3		184
128 #endif
129 
130 /*
131  * Default position of the equalizer.
132  */
133 #ifndef YM_DEFAULT_TREBLE
134 #define YM_DEFAULT_TREBLE	YM_EQ_FLAT_OFFSET
135 #endif
136 #ifndef YM_DEFAULT_BASS
137 #define YM_DEFAULT_BASS		YM_EQ_FLAT_OFFSET
138 #endif
139 
140 #ifdef __i386__		/* XXX */
141 # include "joy.h"
142 #else
143 # define NJOY	0
144 #endif
145 
146 #ifdef AUDIO_DEBUG
147 #define DPRINTF(x)	if (ymdebug) printf x
148 int	ymdebug = 0;
149 #else
150 #define DPRINTF(x)
151 #endif
152 #define DVNAME(softc)	((softc)->sc_ad1848.sc_ad1848.sc_dev.dv_xname)
153 
154 int	ym_getdev(void *, struct audio_device *);
155 int	ym_mixer_set_port(void *, mixer_ctrl_t *);
156 int	ym_mixer_get_port(void *, mixer_ctrl_t *);
157 int	ym_query_devinfo(void *, mixer_devinfo_t *);
158 int	ym_intr(void *);
159 #ifndef AUDIO_NO_POWER_CTL
160 static void ym_save_codec_regs(struct ym_softc *);
161 static void ym_restore_codec_regs(struct ym_softc *);
162 void	ym_power_hook(int, void *);
163 int	ym_codec_power_ctl(void *, int);
164 static void ym_chip_powerdown(struct ym_softc *);
165 static void ym_chip_powerup(struct ym_softc *, int);
166 void	ym_powerdown_blocks(void *);
167 void	ym_power_ctl(struct ym_softc *, int, int);
168 #endif
169 
170 static void ym_init(struct ym_softc *);
171 static void ym_mute(struct ym_softc *, int, int);
172 static void ym_set_master_gain(struct ym_softc *, struct ad1848_volume*);
173 static void ym_hvol_to_master_gain(struct ym_softc *);
174 static void ym_set_mic_gain(struct ym_softc *, int);
175 static void ym_set_3d(struct ym_softc *, mixer_ctrl_t *,
176 	struct ad1848_volume *, int);
177 
178 
179 const struct audio_hw_if ym_hw_if = {
180 	ad1848_isa_open,
181 	ad1848_isa_close,
182 	NULL,
183 	ad1848_query_encoding,
184 	ad1848_set_params,
185 	ad1848_round_blocksize,
186 	ad1848_commit_settings,
187 	NULL,
188 	NULL,
189 	NULL,
190 	NULL,
191 	ad1848_isa_halt_output,
192 	ad1848_isa_halt_input,
193 	NULL,
194 	ym_getdev,
195 	NULL,
196 	ym_mixer_set_port,
197 	ym_mixer_get_port,
198 	ym_query_devinfo,
199 	ad1848_isa_malloc,
200 	ad1848_isa_free,
201 	ad1848_isa_round_buffersize,
202 	ad1848_isa_mappage,
203 	ad1848_isa_get_props,
204 	ad1848_isa_trigger_output,
205 	ad1848_isa_trigger_input,
206 	NULL,
207 };
208 
209 static inline int ym_read(struct ym_softc *, int);
210 static inline void ym_write(struct ym_softc *, int, int);
211 
212 void
213 ym_attach(struct ym_softc *sc)
214 {
215 	static struct ad1848_volume vol_master = {YM_VOL_MASTER, YM_VOL_MASTER};
216 	static struct ad1848_volume vol_dac    = {YM_VOL_DAC,    YM_VOL_DAC};
217 	static struct ad1848_volume vol_opl3   = {YM_VOL_OPL3,   YM_VOL_OPL3};
218 	struct ad1848_softc *ac;
219 	mixer_ctrl_t mctl;
220 	struct audio_attach_args arg;
221 
222 	ac = &sc->sc_ad1848.sc_ad1848;
223 	callout_init(&sc->sc_powerdown_ch);
224 
225 	/* Mute the output to reduce noise during initialization. */
226 	ym_mute(sc, SA3_VOL_L, 1);
227 	ym_mute(sc, SA3_VOL_R, 1);
228 
229 	sc->sc_version = ym_read(sc, SA3_MISC) & SA3_MISC_VER;
230 	ac->chip_name = YM_IS_SA3(sc) ? "OPL3-SA3" : "OPL3-SA2";
231 
232 	sc->sc_ad1848.sc_ih = isa_intr_establish(sc->sc_ic, sc->ym_irq,
233 	    IST_EDGE, IPL_AUDIO, ym_intr, sc);
234 
235 #ifndef AUDIO_NO_POWER_CTL
236 	sc->sc_ad1848.powerctl = ym_codec_power_ctl;
237 	sc->sc_ad1848.powerarg = sc;
238 #endif
239 	ad1848_isa_attach(&sc->sc_ad1848);
240 	printf("\n");
241 	ac->parent = sc;
242 
243 	/* Establish chip in well known mode */
244 	ym_set_master_gain(sc, &vol_master);
245 	ym_set_mic_gain(sc, 0);
246 	sc->master_mute = 0;
247 
248 	/* Override ad1848 settings. */
249 	ad1848_set_channel_gain(ac, AD1848_DAC_CHANNEL, &vol_dac);
250 	ad1848_set_channel_gain(ac, AD1848_AUX2_CHANNEL, &vol_opl3);
251 
252 	/*
253 	 * Mute all external sources.  If you change this, you must
254 	 * also change the initial value of sc->sc_external_sources
255 	 * (currently 0 --- no external source is active).
256 	 */
257 	sc->mic_mute = 1;
258 	ym_mute(sc, SA3_MIC_VOL, sc->mic_mute);
259 	ad1848_mute_channel(ac, AD1848_AUX1_CHANNEL, MUTE_ALL);	/* CD */
260 	ad1848_mute_channel(ac, AD1848_LINE_CHANNEL, MUTE_ALL);	/* line */
261 	ac->mute[AD1848_AUX1_CHANNEL] = MUTE_ALL;
262 	ac->mute[AD1848_LINE_CHANNEL] = MUTE_ALL;
263 	/* speaker is muted by default */
264 
265 	/* We use only one IRQ (IRQ-A). */
266 	ym_write(sc, SA3_IRQ_CONF, SA3_IRQ_CONF_MPU_A | SA3_IRQ_CONF_WSS_A);
267 	ym_write(sc, SA3_HVOL_INTR_CNF, SA3_HVOL_INTR_CNF_A);
268 
269 	/* audio at ym attachment */
270 	sc->sc_audiodev = audio_attach_mi(&ym_hw_if, ac, &ac->sc_dev);
271 
272 	/* opl at ym attachment */
273 	if (sc->sc_opl_ioh) {
274 		arg.type = AUDIODEV_TYPE_OPL;
275 		arg.hwif = 0;
276 		arg.hdl = 0;
277 		(void)config_found(&ac->sc_dev, &arg, audioprint);
278 	}
279 
280 #if NMPU_YM > 0
281 	/* mpu at ym attachment */
282 	if (sc->sc_mpu_ioh) {
283 		arg.type = AUDIODEV_TYPE_MPU;
284 		arg.hwif = 0;
285 		arg.hdl = 0;
286 		sc->sc_mpudev = config_found(&ac->sc_dev, &arg, audioprint);
287 	}
288 #endif
289 
290 	/* This must be AFTER the attachment of sub-devices. */
291 	ym_init(sc);
292 
293 #ifndef AUDIO_NO_POWER_CTL
294 	/*
295 	 * Initialize power control.
296 	 */
297 	sc->sc_pow_mode = YM_POWER_MODE;
298 	sc->sc_pow_timeout = YM_POWER_OFF_SEC;
299 
300 	sc->sc_on_blocks = sc->sc_turning_off =
301 	    YM_POWER_CODEC_P | YM_POWER_CODEC_R |
302 	    YM_POWER_OPL3 | YM_POWER_MPU401 | YM_POWER_3D |
303 	    YM_POWER_CODEC_DA | YM_POWER_CODEC_AD | YM_POWER_OPL3_DA;
304 #if NJOY > 0
305 	sc->sc_on_blocks |= YM_POWER_JOYSTICK;	/* prevents chip powerdown */
306 #endif
307 	ym_powerdown_blocks(sc);
308 
309 	powerhook_establish(ym_power_hook, sc);
310 #endif
311 
312 	/* Set tone control to the default position. */
313 	mctl.un.value.num_channels = 1;
314 	mctl.un.value.level[AUDIO_MIXER_LEVEL_MONO] = YM_DEFAULT_TREBLE;
315 	mctl.dev = YM_MASTER_TREBLE;
316 	ym_mixer_set_port(sc, &mctl);
317 	mctl.un.value.level[AUDIO_MIXER_LEVEL_MONO] = YM_DEFAULT_BASS;
318 	mctl.dev = YM_MASTER_BASS;
319 	ym_mixer_set_port(sc, &mctl);
320 
321 	/* Unmute the output now if the chip is on. */
322 #ifndef AUDIO_NO_POWER_CTL
323 	if (sc->sc_on_blocks & YM_POWER_ACTIVE)
324 #endif
325 	{
326 		ym_mute(sc, SA3_VOL_L, sc->master_mute);
327 		ym_mute(sc, SA3_VOL_R, sc->master_mute);
328 	}
329 }
330 
331 static inline int
332 ym_read(struct ym_softc *sc, int reg)
333 {
334 
335 	bus_space_write_1(sc->sc_iot, sc->sc_controlioh,
336 	    SA3_CTL_INDEX, (reg & 0xff));
337 	return bus_space_read_1(sc->sc_iot, sc->sc_controlioh, SA3_CTL_DATA);
338 }
339 
340 static inline void
341 ym_write(struct ym_softc *sc, int reg, int data)
342 {
343 
344 	bus_space_write_1(sc->sc_iot, sc->sc_controlioh,
345 	    SA3_CTL_INDEX, (reg & 0xff));
346 	bus_space_write_1(sc->sc_iot, sc->sc_controlioh,
347 	    SA3_CTL_DATA, (data & 0xff));
348 }
349 
350 static void
351 ym_init(struct ym_softc *sc)
352 {
353 	uint8_t dpd, apd;
354 
355 	/* Mute SoundBlaster output if possible. */
356 	if (sc->sc_sb_ioh) {
357 		bus_space_write_1(sc->sc_iot, sc->sc_sb_ioh, SBP_MIXER_ADDR,
358 		    SBP_MASTER_VOL);
359 		bus_space_write_1(sc->sc_iot, sc->sc_sb_ioh, SBP_MIXER_DATA,
360 		    0x00);
361 	}
362 
363 	if (!YM_IS_SA3(sc)) {
364 		/* OPL3-SA2 */
365 		ym_write(sc, SA3_PWR_MNG, SA2_PWR_MNG_CLKO |
366 		    (sc->sc_opl_ioh == 0 ? SA2_PWR_MNG_FMPS : 0));
367 		return;
368 	}
369 
370 	/* OPL3-SA3 */
371 	/* Figure out which part can be power down. */
372 	dpd = SA3_DPWRDWN_SB		/* we never use SB */
373 #if NMPU_YM > 0
374 	    | (sc->sc_mpu_ioh ? 0 : SA3_DPWRDWN_MPU)
375 #else
376 	    | SA3_DPWRDWN_MPU
377 #endif
378 #if NJOY == 0
379 	    | SA3_DPWRDWN_JOY
380 #endif
381 	    | SA3_DPWRDWN_PNP	/* ISA Plug and Play is done */
382 	    /*
383 	     * The master clock is for external wavetable synthesizer
384 	     * OPL4-ML (YMF704) or OPL4-ML2 (YMF721),
385 	     * and is currently unused.
386 	     */
387 	    | SA3_DPWRDWN_MCLKO;
388 
389 	apd = SA3_APWRDWN_SBDAC;	/* we never use SB */
390 
391 	/* Power down OPL3 if not attached. */
392 	if (sc->sc_opl_ioh == 0) {
393 		dpd |= SA3_DPWRDWN_FM;
394 		apd |= SA3_APWRDWN_FMDAC;
395 	}
396 	/* CODEC is always attached. */
397 
398 	/* Power down unused digital parts. */
399 	ym_write(sc, SA3_DPWRDWN, dpd);
400 
401 	/* Power down unused analog parts. */
402 	ym_write(sc, SA3_APWRDWN, apd);
403 }
404 
405 
406 int
407 ym_getdev(void *addr, struct audio_device *retp)
408 {
409 	struct ym_softc *sc;
410 	struct ad1848_softc *ac;
411 
412 	sc = addr;
413 	ac = &sc->sc_ad1848.sc_ad1848;
414 	strlcpy(retp->name, ac->chip_name, sizeof(retp->name));
415 	snprintf(retp->version, sizeof(retp->version), "%d", sc->sc_version);
416 	strlcpy(retp->config, "ym", sizeof(retp->config));
417 
418 	return 0;
419 }
420 
421 
422 static ad1848_devmap_t mappings[] = {
423 	{ YM_DAC_LVL, AD1848_KIND_LVL, AD1848_DAC_CHANNEL },
424 	{ YM_MIDI_LVL, AD1848_KIND_LVL, AD1848_AUX2_CHANNEL },
425 	{ YM_CD_LVL, AD1848_KIND_LVL, AD1848_AUX1_CHANNEL },
426 	{ YM_LINE_LVL, AD1848_KIND_LVL, AD1848_LINE_CHANNEL },
427 	{ YM_SPEAKER_LVL, AD1848_KIND_LVL, AD1848_MONO_CHANNEL },
428 	{ YM_MONITOR_LVL, AD1848_KIND_LVL, AD1848_MONITOR_CHANNEL },
429 	{ YM_DAC_MUTE, AD1848_KIND_MUTE, AD1848_DAC_CHANNEL },
430 	{ YM_MIDI_MUTE, AD1848_KIND_MUTE, AD1848_AUX2_CHANNEL },
431 	{ YM_CD_MUTE, AD1848_KIND_MUTE, AD1848_AUX1_CHANNEL },
432 	{ YM_LINE_MUTE, AD1848_KIND_MUTE, AD1848_LINE_CHANNEL },
433 	{ YM_SPEAKER_MUTE, AD1848_KIND_MUTE, AD1848_MONO_CHANNEL },
434 	{ YM_MONITOR_MUTE, AD1848_KIND_MUTE, AD1848_MONITOR_CHANNEL },
435 	{ YM_REC_LVL, AD1848_KIND_RECORDGAIN, -1 },
436 	{ YM_RECORD_SOURCE, AD1848_KIND_RECORDSOURCE, -1}
437 };
438 
439 #define NUMMAP	(sizeof(mappings) / sizeof(mappings[0]))
440 
441 
442 static void
443 ym_mute(struct ym_softc *sc, int left_reg, int mute)
444 {
445 	uint8_t reg;
446 
447 	reg = ym_read(sc, left_reg);
448 	if (mute)
449 		ym_write(sc, left_reg, reg | 0x80);
450 	else
451 		ym_write(sc, left_reg, reg & ~0x80);
452 }
453 
454 
455 static void
456 ym_set_master_gain(struct ym_softc *sc, struct ad1848_volume *vol)
457 {
458 	u_int atten;
459 
460 	sc->master_gain = *vol;
461 
462 	atten = ((AUDIO_MAX_GAIN - vol->left) * (SA3_VOL_MV + 1)) /
463 		(AUDIO_MAX_GAIN + 1);
464 
465 	ym_write(sc, SA3_VOL_L, (ym_read(sc, SA3_VOL_L) & ~SA3_VOL_MV) | atten);
466 
467 	atten = ((AUDIO_MAX_GAIN - vol->right) * (SA3_VOL_MV + 1)) /
468 		(AUDIO_MAX_GAIN + 1);
469 
470 	ym_write(sc, SA3_VOL_R, (ym_read(sc, SA3_VOL_R) & ~SA3_VOL_MV) | atten);
471 }
472 
473 /*
474  * Read current setting of master volume from hardware
475  * and update the software value if changed.
476  * [SA3] This function clears hardware volume interrupt.
477  */
478 static void
479 ym_hvol_to_master_gain(struct ym_softc *sc)
480 {
481 	u_int prevval, val;
482 	int changed;
483 
484 	changed = 0;
485 	val = SA3_VOL_MV & ~ym_read(sc, SA3_VOL_L);
486 	prevval = (sc->master_gain.left * (SA3_VOL_MV + 1)) /
487 	    (AUDIO_MAX_GAIN + 1);
488 	if (val != prevval) {
489 		sc->master_gain.left =
490 		    val * ((AUDIO_MAX_GAIN + 1) / (SA3_VOL_MV + 1));
491 		changed = 1;
492 	}
493 
494 	val = SA3_VOL_MV & ~ym_read(sc, SA3_VOL_R);
495 	prevval = (sc->master_gain.right * (SA3_VOL_MV + 1)) /
496 	    (AUDIO_MAX_GAIN + 1);
497 	if (val != prevval) {
498 		sc->master_gain.right =
499 		    val * ((AUDIO_MAX_GAIN + 1) / (SA3_VOL_MV + 1));
500 		changed = 1;
501 	}
502 
503 #if 0	/* XXX NOT YET */
504 	/* Notify the change to async processes. */
505 	if (changed && sc->sc_audiodev)
506 		mixer_signal(sc->sc_audiodev);
507 #endif
508 }
509 
510 static void
511 ym_set_mic_gain(struct ym_softc *sc, int vol)
512 {
513 	u_int atten;
514 
515 	sc->mic_gain = vol;
516 
517 	atten = ((AUDIO_MAX_GAIN - vol) * (SA3_MIC_MCV + 1)) /
518 		(AUDIO_MAX_GAIN + 1);
519 
520 	ym_write(sc, SA3_MIC_VOL,
521 		 (ym_read(sc, SA3_MIC_VOL) & ~SA3_MIC_MCV) | atten);
522 }
523 
524 static void
525 ym_set_3d(struct ym_softc *sc, mixer_ctrl_t *cp,
526     struct ad1848_volume *val, int reg)
527 {
528 	uint8_t l, r, e;
529 
530 	ad1848_to_vol(cp, val);
531 
532 	l = val->left;
533 	r = val->right;
534 	if (reg != SA3_3D_WIDE) {
535 		/* flat on center */
536 		l = YM_EQ_EXPAND_VALUE(l);
537 		r = YM_EQ_EXPAND_VALUE(r);
538 	}
539 
540 	e = (l * (SA3_3D_BITS + 1) + (SA3_3D_BITS + 1) / 2) /
541 	    (AUDIO_MAX_GAIN + 1) << SA3_3D_LSHIFT |
542 	    (r * (SA3_3D_BITS + 1) + (SA3_3D_BITS + 1) / 2) /
543 	    (AUDIO_MAX_GAIN + 1) << SA3_3D_RSHIFT;
544 
545 #ifndef AUDIO_NO_POWER_CTL
546 	/* turn wide stereo on if necessary */
547 	if (e)
548 		ym_power_ctl(sc, YM_POWER_3D, 1);
549 #endif
550 
551 	ym_write(sc, reg, e);
552 
553 #ifndef AUDIO_NO_POWER_CTL
554 	/* turn wide stereo off if necessary */
555 	if (YM_EQ_OFF(&sc->sc_treble) && YM_EQ_OFF(&sc->sc_bass) &&
556 	    YM_WIDE_OFF(&sc->sc_wide))
557 		ym_power_ctl(sc, YM_POWER_3D, 0);
558 #endif
559 }
560 
561 int
562 ym_mixer_set_port(void *addr, mixer_ctrl_t *cp)
563 {
564 	struct ad1848_softc *ac;
565 	struct ym_softc *sc;
566 	struct ad1848_volume vol;
567 	int error;
568 	uint8_t extsources;
569 
570 	ac = addr;
571 	sc = ac->parent;
572 	error = 0;
573 	DPRINTF(("%s: ym_mixer_set_port: dev 0x%x, type 0x%x, 0x%x (%d; %d, %d)\n",
574 		DVNAME(sc), cp->dev, cp->type, cp->un.ord,
575 		cp->un.value.num_channels, cp->un.value.level[0],
576 		cp->un.value.level[1]));
577 
578 	/* SA2 doesn't have equalizer */
579 	if (!YM_IS_SA3(sc) && YM_MIXER_SA3_ONLY(cp->dev))
580 		return ENXIO;
581 
582 #ifndef AUDIO_NO_POWER_CTL
583 	/* Power-up chip */
584 	ym_power_ctl(sc, YM_POWER_CODEC_CTL, 1);
585 #endif
586 
587 	switch (cp->dev) {
588 	case YM_OUTPUT_LVL:
589 		ad1848_to_vol(cp, &vol);
590 		ym_set_master_gain(sc, &vol);
591 		goto out;
592 
593 	case YM_OUTPUT_MUTE:
594 		sc->master_mute = (cp->un.ord != 0);
595 		ym_mute(sc, SA3_VOL_L, sc->master_mute);
596 		ym_mute(sc, SA3_VOL_R, sc->master_mute);
597 		goto out;
598 
599 	case YM_MIC_LVL:
600 		if (cp->un.value.num_channels != 1)
601 			error = EINVAL;
602 		else
603 			ym_set_mic_gain(sc,
604 			    cp->un.value.level[AUDIO_MIXER_LEVEL_MONO]);
605 		goto out;
606 
607 	case YM_MASTER_EQMODE:
608 		sc->sc_eqmode = cp->un.ord & SA3_SYS_CTL_YMODE;
609 		ym_write(sc, SA3_SYS_CTL, (ym_read(sc, SA3_SYS_CTL) &
610 			     ~SA3_SYS_CTL_YMODE) | sc->sc_eqmode);
611 		goto out;
612 
613 	case YM_MASTER_TREBLE:
614 		ym_set_3d(sc, cp, &sc->sc_treble, SA3_3D_TREBLE);
615 		goto out;
616 
617 	case YM_MASTER_BASS:
618 		ym_set_3d(sc, cp, &sc->sc_bass, SA3_3D_BASS);
619 		goto out;
620 
621 	case YM_MASTER_WIDE:
622 		ym_set_3d(sc, cp, &sc->sc_wide, SA3_3D_WIDE);
623 		goto out;
624 
625 #ifndef AUDIO_NO_POWER_CTL
626 	case YM_PWR_MODE:
627 		if ((unsigned) cp->un.ord > YM_POWER_NOSAVE)
628 			error = EINVAL;
629 		else
630 			sc->sc_pow_mode = cp->un.ord;
631 		goto out;
632 
633 	case YM_PWR_TIMEOUT:
634 		if (cp->un.value.num_channels != 1)
635 			error = EINVAL;
636 		else
637 			sc->sc_pow_timeout =
638 			    cp->un.value.level[AUDIO_MIXER_LEVEL_MONO];
639 		goto out;
640 
641 	/*
642 	 * Needs power-up to hear external sources.
643 	 */
644 	case YM_CD_MUTE:
645 	case YM_LINE_MUTE:
646 	case YM_SPEAKER_MUTE:
647 	case YM_MIC_MUTE:
648 		extsources = YM_MIXER_TO_XS(cp->dev);
649 		if (cp->un.ord) {
650 			if ((sc->sc_external_sources &= ~extsources) == 0) {
651 				/*
652 				 * All the external sources are muted
653 				 *  --- no need to keep the chip on.
654 				 */
655 				ym_power_ctl(sc, YM_POWER_EXT_SRC, 0);
656 				DPRINTF(("%s: ym_mixer_set_port: off for ext\n",
657 					DVNAME(sc)));
658 			}
659 		} else {
660 			/* mute off - power-up the chip */
661 			sc->sc_external_sources |= extsources;
662 			ym_power_ctl(sc, YM_POWER_EXT_SRC, 1);
663 			DPRINTF(("%s: ym_mixer_set_port: on for ext\n",
664 				DVNAME(sc)));
665 		}
666 		break;	/* fall to ad1848_mixer_set_port() */
667 
668 	/*
669 	 * Power on/off the playback part for monitoring.
670 	 */
671 	case YM_MONITOR_MUTE:
672 		if ((ac->open_mode & (FREAD | FWRITE)) == FREAD)
673 			ym_power_ctl(sc, YM_POWER_CODEC_P | YM_POWER_CODEC_DA,
674 			    cp->un.ord == 0);
675 		break;	/* fall to ad1848_mixer_set_port() */
676 #endif
677 	}
678 
679 	error = ad1848_mixer_set_port(ac, mappings, NUMMAP, cp);
680 
681 	if (error != ENXIO)
682 		goto out;
683 
684 	error = 0;
685 
686 	switch (cp->dev) {
687 	case YM_MIC_MUTE:
688 		sc->mic_mute = (cp->un.ord != 0);
689 		ym_mute(sc, SA3_MIC_VOL, sc->mic_mute);
690 		break;
691 
692 	default:
693 		error = ENXIO;
694 		break;
695 	}
696 
697 out:
698 #ifndef AUDIO_NO_POWER_CTL
699 	/* Power-down chip */
700 	ym_power_ctl(sc, YM_POWER_CODEC_CTL, 0);
701 #endif
702 
703 	return error;
704 }
705 
706 int
707 ym_mixer_get_port(void *addr, mixer_ctrl_t *cp)
708 {
709 	struct ad1848_softc *ac;
710 	struct ym_softc *sc;
711 	int error;
712 
713 	ac = addr;
714 	sc = ac->parent;
715 	/* SA2 doesn't have equalizer */
716 	if (!YM_IS_SA3(sc) && YM_MIXER_SA3_ONLY(cp->dev))
717 		return ENXIO;
718 
719 	switch (cp->dev) {
720 	case YM_OUTPUT_LVL:
721 		if (!YM_IS_SA3(sc)) {
722 			/*
723 			 * SA2 doesn't have hardware volume interrupt.
724 			 * Read current value and update every time.
725 			 */
726 #ifndef AUDIO_NO_POWER_CTL
727 			/* Power-up chip */
728 			ym_power_ctl(sc, YM_POWER_CODEC_CTL, 1);
729 #endif
730 			ym_hvol_to_master_gain(sc);
731 #ifndef AUDIO_NO_POWER_CTL
732 			/* Power-down chip */
733 			ym_power_ctl(sc, YM_POWER_CODEC_CTL, 0);
734 #endif
735 		}
736 		ad1848_from_vol(cp, &sc->master_gain);
737 		return 0;
738 
739 	case YM_OUTPUT_MUTE:
740 		cp->un.ord = sc->master_mute;
741 		return 0;
742 
743 	case YM_MIC_LVL:
744 		if (cp->un.value.num_channels != 1)
745 			return EINVAL;
746 		cp->un.value.level[AUDIO_MIXER_LEVEL_MONO] = sc->mic_gain;
747 		return 0;
748 
749 	case YM_MASTER_EQMODE:
750 		cp->un.ord = sc->sc_eqmode;
751 		return 0;
752 
753 	case YM_MASTER_TREBLE:
754 		ad1848_from_vol(cp, &sc->sc_treble);
755 		return 0;
756 
757 	case YM_MASTER_BASS:
758 		ad1848_from_vol(cp, &sc->sc_bass);
759 		return 0;
760 
761 	case YM_MASTER_WIDE:
762 		ad1848_from_vol(cp, &sc->sc_wide);
763 		return 0;
764 
765 #ifndef AUDIO_NO_POWER_CTL
766 	case YM_PWR_MODE:
767 		cp->un.ord = sc->sc_pow_mode;
768 		return 0;
769 
770 	case YM_PWR_TIMEOUT:
771 		if (cp->un.value.num_channels != 1)
772 			return EINVAL;
773 		cp->un.value.level[AUDIO_MIXER_LEVEL_MONO] = sc->sc_pow_timeout;
774 		return 0;
775 #endif
776 	}
777 
778 	error = ad1848_mixer_get_port(ac, mappings, NUMMAP, cp);
779 
780 	if (error != ENXIO)
781 		return error;
782 
783 	error = 0;
784 
785 	switch (cp->dev) {
786 	case YM_MIC_MUTE:
787 		cp->un.ord = sc->mic_mute;
788 		break;
789 
790 	default:
791 		error = ENXIO;
792 		break;
793 	}
794 
795 	return error;
796 }
797 
798 static const char *mixer_classes[] = {
799 	AudioCinputs, AudioCrecord, AudioCoutputs, AudioCmonitor,
800 #ifndef AUDIO_NO_POWER_CTL
801 	AudioCpower,
802 #endif
803 	AudioCequalization
804 };
805 
806 int
807 ym_query_devinfo(void *addr, mixer_devinfo_t *dip)
808 {
809 	static const char *mixer_port_names[] = {
810 		AudioNdac, AudioNmidi, AudioNcd, AudioNline, AudioNspeaker,
811 		AudioNmicrophone, AudioNmonitor
812 	};
813 	struct ad1848_softc *ac;
814 	struct ym_softc *sc;
815 
816 	ac = addr;
817 	sc = ac->parent;
818 	/* SA2 doesn't have equalizer */
819 	if (!YM_IS_SA3(sc) && YM_MIXER_SA3_ONLY(dip->index))
820 		return ENXIO;
821 
822 	dip->next = dip->prev = AUDIO_MIXER_LAST;
823 
824 	switch(dip->index) {
825 	case YM_INPUT_CLASS:
826 	case YM_OUTPUT_CLASS:
827 	case YM_MONITOR_CLASS:
828 	case YM_RECORD_CLASS:
829 #ifndef AUDIO_NO_POWER_CTL
830 	case YM_PWR_CLASS:
831 #endif
832 	case YM_EQ_CLASS:
833 		dip->type = AUDIO_MIXER_CLASS;
834 		dip->mixer_class = dip->index;
835 		strcpy(dip->label.name,
836 		       mixer_classes[dip->index - YM_INPUT_CLASS]);
837 		break;
838 
839 	case YM_DAC_LVL:
840 	case YM_MIDI_LVL:
841 	case YM_CD_LVL:
842 	case YM_LINE_LVL:
843 	case YM_SPEAKER_LVL:
844 	case YM_MIC_LVL:
845 	case YM_MONITOR_LVL:
846 		dip->type = AUDIO_MIXER_VALUE;
847 		if (dip->index == YM_MONITOR_LVL)
848 			dip->mixer_class = YM_MONITOR_CLASS;
849 		else
850 			dip->mixer_class = YM_INPUT_CLASS;
851 
852 		dip->next = dip->index + 7;
853 
854 		strcpy(dip->label.name,
855 		       mixer_port_names[dip->index - YM_DAC_LVL]);
856 
857 		if (dip->index == YM_SPEAKER_LVL ||
858 		    dip->index == YM_MIC_LVL)
859 			dip->un.v.num_channels = 1;
860 		else
861 			dip->un.v.num_channels = 2;
862 
863 		if (dip->index == YM_SPEAKER_LVL)
864 			dip->un.v.delta = 1 << (8 - 4 /* valid bits */);
865 		else if (dip->index == YM_DAC_LVL ||
866 		    dip->index == YM_MONITOR_LVL)
867 			dip->un.v.delta = 1 << (8 - 6 /* valid bits */);
868 		else
869 			dip->un.v.delta = 1 << (8 - 5 /* valid bits */);
870 
871 		strcpy(dip->un.v.units.name, AudioNvolume);
872 		break;
873 
874 	case YM_DAC_MUTE:
875 	case YM_MIDI_MUTE:
876 	case YM_CD_MUTE:
877 	case YM_LINE_MUTE:
878 	case YM_SPEAKER_MUTE:
879 	case YM_MIC_MUTE:
880 	case YM_MONITOR_MUTE:
881 		if (dip->index == YM_MONITOR_MUTE)
882 			dip->mixer_class = YM_MONITOR_CLASS;
883 		else
884 			dip->mixer_class = YM_INPUT_CLASS;
885 		dip->type = AUDIO_MIXER_ENUM;
886 		dip->prev = dip->index - 7;
887 	mute:
888 		strcpy(dip->label.name, AudioNmute);
889 		dip->un.e.num_mem = 2;
890 		strcpy(dip->un.e.member[0].label.name, AudioNoff);
891 		dip->un.e.member[0].ord = 0;
892 		strcpy(dip->un.e.member[1].label.name, AudioNon);
893 		dip->un.e.member[1].ord = 1;
894 		break;
895 
896 
897 	case YM_OUTPUT_LVL:
898 		dip->type = AUDIO_MIXER_VALUE;
899 		dip->mixer_class = YM_OUTPUT_CLASS;
900 		dip->next = YM_OUTPUT_MUTE;
901 		strcpy(dip->label.name, AudioNmaster);
902 		dip->un.v.num_channels = 2;
903 		dip->un.v.delta = (AUDIO_MAX_GAIN + 1) / (SA3_VOL_MV + 1);
904 		strcpy(dip->un.v.units.name, AudioNvolume);
905 		break;
906 
907 	case YM_OUTPUT_MUTE:
908 		dip->mixer_class = YM_OUTPUT_CLASS;
909 		dip->type = AUDIO_MIXER_ENUM;
910 		dip->prev = YM_OUTPUT_LVL;
911 		goto mute;
912 
913 
914 	case YM_REC_LVL:	/* record level */
915 		dip->type = AUDIO_MIXER_VALUE;
916 		dip->mixer_class = YM_RECORD_CLASS;
917 		dip->next = YM_RECORD_SOURCE;
918 		strcpy(dip->label.name, AudioNrecord);
919 		dip->un.v.num_channels = 2;
920 		dip->un.v.delta = 1 << (8 - 4 /* valid bits */);
921 		strcpy(dip->un.v.units.name, AudioNvolume);
922 		break;
923 
924 	case YM_RECORD_SOURCE:
925 		dip->mixer_class = YM_RECORD_CLASS;
926 		dip->type = AUDIO_MIXER_ENUM;
927 		dip->prev = YM_REC_LVL;
928 		strcpy(dip->label.name, AudioNsource);
929 		dip->un.e.num_mem = 4;
930 		strcpy(dip->un.e.member[0].label.name, AudioNmicrophone);
931 		dip->un.e.member[0].ord = MIC_IN_PORT;
932 		strcpy(dip->un.e.member[1].label.name, AudioNline);
933 		dip->un.e.member[1].ord = LINE_IN_PORT;
934 		strcpy(dip->un.e.member[2].label.name, AudioNdac);
935 		dip->un.e.member[2].ord = DAC_IN_PORT;
936 		strcpy(dip->un.e.member[3].label.name, AudioNcd);
937 		dip->un.e.member[3].ord = AUX1_IN_PORT;
938 		break;
939 
940 
941 	case YM_MASTER_EQMODE:
942 		dip->type = AUDIO_MIXER_ENUM;
943 		dip->mixer_class = YM_EQ_CLASS;
944 		strcpy(dip->label.name, AudioNmode);
945 		strcpy(dip->un.v.units.name, AudioNmode);
946 		dip->un.e.num_mem = 4;
947 		strcpy(dip->un.e.member[0].label.name, AudioNdesktop);
948 		dip->un.e.member[0].ord = SA3_SYS_CTL_YMODE0;
949 		strcpy(dip->un.e.member[1].label.name, AudioNlaptop);
950 		dip->un.e.member[1].ord = SA3_SYS_CTL_YMODE1;
951 		strcpy(dip->un.e.member[2].label.name, AudioNsubnote);
952 		dip->un.e.member[2].ord = SA3_SYS_CTL_YMODE2;
953 		strcpy(dip->un.e.member[3].label.name, AudioNhifi);
954 		dip->un.e.member[3].ord = SA3_SYS_CTL_YMODE3;
955 		break;
956 
957 	case YM_MASTER_TREBLE:
958 		dip->type = AUDIO_MIXER_VALUE;
959 		dip->mixer_class = YM_EQ_CLASS;
960 		strcpy(dip->label.name, AudioNtreble);
961 		dip->un.v.num_channels = 2;
962 		dip->un.v.delta = (AUDIO_MAX_GAIN + 1) / (SA3_3D_BITS + 1)
963 		    >> YM_EQ_REDUCE_BIT;
964 		strcpy(dip->un.v.units.name, AudioNtreble);
965 		break;
966 
967 	case YM_MASTER_BASS:
968 		dip->type = AUDIO_MIXER_VALUE;
969 		dip->mixer_class = YM_EQ_CLASS;
970 		strcpy(dip->label.name, AudioNbass);
971 		dip->un.v.num_channels = 2;
972 		dip->un.v.delta = (AUDIO_MAX_GAIN + 1) / (SA3_3D_BITS + 1)
973 		    >> YM_EQ_REDUCE_BIT;
974 		strcpy(dip->un.v.units.name, AudioNbass);
975 		break;
976 
977 	case YM_MASTER_WIDE:
978 		dip->type = AUDIO_MIXER_VALUE;
979 		dip->mixer_class = YM_EQ_CLASS;
980 		strcpy(dip->label.name, AudioNsurround);
981 		dip->un.v.num_channels = 2;
982 		dip->un.v.delta = (AUDIO_MAX_GAIN + 1) / (SA3_3D_BITS + 1);
983 		strcpy(dip->un.v.units.name, AudioNsurround);
984 		break;
985 
986 
987 #ifndef AUDIO_NO_POWER_CTL
988 	case YM_PWR_MODE:
989 		dip->type = AUDIO_MIXER_ENUM;
990 		dip->mixer_class = YM_PWR_CLASS;
991 		dip->next = YM_PWR_TIMEOUT;
992 		strcpy(dip->label.name, AudioNsave);
993 		dip->un.e.num_mem = 3;
994 		strcpy(dip->un.e.member[0].label.name, AudioNpowerdown);
995 		dip->un.e.member[0].ord = YM_POWER_POWERDOWN;
996 		strcpy(dip->un.e.member[1].label.name, AudioNpowersave);
997 		dip->un.e.member[1].ord = YM_POWER_POWERSAVE;
998 		strcpy(dip->un.e.member[2].label.name, AudioNnosave);
999 		dip->un.e.member[2].ord = YM_POWER_NOSAVE;
1000 		break;
1001 
1002 	case YM_PWR_TIMEOUT:
1003 		dip->type = AUDIO_MIXER_VALUE;
1004 		dip->mixer_class = YM_PWR_CLASS;
1005 		dip->prev = YM_PWR_MODE;
1006 		strcpy(dip->label.name, AudioNtimeout);
1007 		dip->un.v.num_channels = 1;
1008 		strcpy(dip->un.v.units.name, AudioNtimeout);
1009 		break;
1010 #endif /* not AUDIO_NO_POWER_CTL */
1011 
1012 	default:
1013 		return ENXIO;
1014 		/*NOTREACHED*/
1015 	}
1016 
1017 	return 0;
1018 }
1019 
1020 int
1021 ym_intr(void *arg)
1022 {
1023 	struct ym_softc *sc;
1024 	u_int8_t ist;
1025 	int processed;
1026 
1027 	sc = arg;
1028 	/* OPL3 timer is currently unused. */
1029 	if (((ist = ym_read(sc, SA3_IRQA_STAT)) &
1030 	     ~(SA3_IRQ_STAT_SB|SA3_IRQ_STAT_OPL3)) == 0) {
1031 		DPRINTF(("%s: ym_intr: spurious interrupt\n", DVNAME(sc)));
1032 		return 0;
1033 	}
1034 
1035 	/* Process pending interrupts. */
1036 	do {
1037 		processed = 0;
1038 		/*
1039 		 * CODEC interrupts.
1040 		 */
1041 		if (ist & (SA3_IRQ_STAT_TI|SA3_IRQ_STAT_CI|SA3_IRQ_STAT_PI)) {
1042 			ad1848_isa_intr(&sc->sc_ad1848);
1043 			processed = 1;
1044 		}
1045 #if NMPU_YM > 0
1046 		/*
1047 		 * MPU401 interrupt.
1048 		 */
1049 		if (ist & SA3_IRQ_STAT_MPU) {
1050 			mpu_intr(sc->sc_mpudev);
1051 			processed = 1;
1052 		}
1053 #endif
1054 		/*
1055 		 * Hardware volume interrupt (SA3 only).
1056 		 * Recalculate master volume from the hardware setting.
1057 		 */
1058 		if ((ist & SA3_IRQ_STAT_MV) && YM_IS_SA3(sc)) {
1059 			ym_hvol_to_master_gain(sc);
1060 			processed = 1;
1061 		}
1062 	} while (processed && (ist = ym_read(sc, SA3_IRQA_STAT)));
1063 
1064 	return 1;
1065 }
1066 
1067 
1068 #ifndef AUDIO_NO_POWER_CTL
1069 static void
1070 ym_save_codec_regs(struct ym_softc *sc)
1071 {
1072 	struct ad1848_softc *ac;
1073 	int i;
1074 
1075 	DPRINTF(("%s: ym_save_codec_regs\n", DVNAME(sc)));
1076 	ac = &sc->sc_ad1848.sc_ad1848;
1077 	for (i = 0; i <= 0x1f; i++)
1078 		sc->sc_codec_scan[i] = ad_read(ac, i);
1079 }
1080 
1081 static void
1082 ym_restore_codec_regs(struct ym_softc *sc)
1083 {
1084 	struct ad1848_softc *ac;
1085 	int i, t;
1086 
1087 	DPRINTF(("%s: ym_restore_codec_regs\n", DVNAME(sc)));
1088 	ac = &sc->sc_ad1848.sc_ad1848;
1089 	for (i = 0; i <= 0x1f; i++) {
1090 		/*
1091 		 * Wait til the chip becomes ready.
1092 		 * This is required after suspend/resume.
1093 		 */
1094 		for (t = 0;
1095 		    t < 100000 && ADREAD(ac, AD1848_IADDR) & SP_IN_INIT; t++)
1096 			;
1097 #ifdef AUDIO_DEBUG
1098 		if (t)
1099 			DPRINTF(("%s: ym_restore_codec_regs: reg %d, t %d\n",
1100 				 DVNAME(sc), i, t));
1101 #endif
1102 		ad_write(ac, i, sc->sc_codec_scan[i]);
1103 	}
1104 }
1105 
1106 /*
1107  * Save and restore the state on suspending / resumning.
1108  *
1109  * XXX This is not complete.
1110  * Currently only the parameters, such as output gain, are restored.
1111  * DMA state should also be restored.  FIXME.
1112  */
1113 void
1114 ym_power_hook(int why, void *v)
1115 {
1116 	struct ym_softc *sc;
1117 	int i, xmax;
1118 	int s;
1119 
1120 	sc = v;
1121 	DPRINTF(("%s: ym_power_hook: why = %d\n", DVNAME(sc), why));
1122 
1123 	s = splaudio();
1124 
1125 	switch (why) {
1126 	case PWR_SUSPEND:
1127 	case PWR_STANDBY:
1128 		/*
1129 		 * suspending...
1130 		 */
1131 		callout_stop(&sc->sc_powerdown_ch);
1132 		if (sc->sc_turning_off)
1133 			ym_powerdown_blocks(sc);
1134 
1135 		/*
1136 		 * Save CODEC registers.
1137 		 * Note that the registers read incorrect
1138 		 * if the CODEC part is in power-down mode.
1139 		 */
1140 		if (sc->sc_on_blocks & YM_POWER_CODEC_DIGITAL)
1141 			ym_save_codec_regs(sc);
1142 
1143 		/*
1144 		 * Save OPL3-SA3 control registers and power-down the chip.
1145 		 * Note that the registers read incorrect
1146 		 * if the chip is in global power-down mode.
1147 		 */
1148 		sc->sc_sa3_scan[SA3_PWR_MNG] = ym_read(sc, SA3_PWR_MNG);
1149 		if (sc->sc_on_blocks)
1150 			ym_chip_powerdown(sc);
1151 		break;
1152 
1153 	case PWR_RESUME:
1154 		/*
1155 		 * resuming...
1156 		 */
1157 		ym_chip_powerup(sc, 1);
1158 		ym_init(sc);		/* power-on CODEC */
1159 
1160 		/* Restore control registers. */
1161 		xmax = YM_IS_SA3(sc)? YM_SAVE_REG_MAX_SA3 : YM_SAVE_REG_MAX_SA2;
1162 		for (i = SA3_PWR_MNG + 1; i <= xmax; i++) {
1163 			if (i == SA3_SB_SCAN || i == SA3_SB_SCAN_DATA ||
1164 			    i == SA3_DPWRDWN)
1165 				continue;
1166 			ym_write(sc, i, sc->sc_sa3_scan[i]);
1167 		}
1168 
1169 		/* Restore CODEC registers (including mixer). */
1170 		ym_restore_codec_regs(sc);
1171 
1172 		/* Restore global/digital power-down state. */
1173 		ym_write(sc, SA3_PWR_MNG, sc->sc_sa3_scan[SA3_PWR_MNG]);
1174 		if (YM_IS_SA3(sc))
1175 			ym_write(sc, SA3_DPWRDWN, sc->sc_sa3_scan[SA3_DPWRDWN]);
1176 		break;
1177 	case PWR_SOFTSUSPEND:
1178 	case PWR_SOFTSTANDBY:
1179 	case PWR_SOFTRESUME:
1180 		break;
1181 	}
1182 	splx(s);
1183 }
1184 
1185 int
1186 ym_codec_power_ctl(void *arg, int flags)
1187 {
1188 	struct ym_softc *sc;
1189 	struct ad1848_softc *ac;
1190 	int parts;
1191 
1192 	sc = arg;
1193 	ac = &sc->sc_ad1848.sc_ad1848;
1194 	DPRINTF(("%s: ym_codec_power_ctl: flags = 0x%x\n", DVNAME(sc), flags));
1195 
1196 	if (flags != 0) {
1197 		parts = 0;
1198 		if (flags & FREAD) {
1199 			parts |= YM_POWER_CODEC_R | YM_POWER_CODEC_AD;
1200 			if (ac->mute[AD1848_MONITOR_CHANNEL] == 0)
1201 				parts |= YM_POWER_CODEC_P | YM_POWER_CODEC_DA;
1202 		}
1203 		if (flags & FWRITE)
1204 			parts |= YM_POWER_CODEC_P | YM_POWER_CODEC_DA;
1205 	} else
1206 		parts = YM_POWER_CODEC_P | YM_POWER_CODEC_R |
1207 			YM_POWER_CODEC_DA | YM_POWER_CODEC_AD;
1208 
1209 	ym_power_ctl(sc, parts, flags);
1210 
1211 	return 0;
1212 }
1213 
1214 /*
1215  * Enter Power Save mode or Global Power Down mode.
1216  * Total dissipation becomes 5mA and 10uA (typ.) respective.
1217  *
1218  * This must be called at splaudio().
1219  */
1220 static void
1221 ym_chip_powerdown(struct ym_softc *sc)
1222 {
1223 	int i, xmax;
1224 
1225 	DPRINTF(("%s: ym_chip_powerdown\n", DVNAME(sc)));
1226 
1227 	xmax = YM_IS_SA3(sc) ? YM_SAVE_REG_MAX_SA3 : YM_SAVE_REG_MAX_SA2;
1228 
1229 	/* Save control registers. */
1230 	for (i = SA3_PWR_MNG + 1; i <= xmax; i++) {
1231 		if (i == SA3_SB_SCAN || i == SA3_SB_SCAN_DATA)
1232 			continue;
1233 		sc->sc_sa3_scan[i] = ym_read(sc, i);
1234 	}
1235 	ym_write(sc, SA3_PWR_MNG,
1236 		 (sc->sc_pow_mode == YM_POWER_POWERDOWN ?
1237 			SA3_PWR_MNG_PDN : SA3_PWR_MNG_PSV) | SA3_PWR_MNG_PDX);
1238 }
1239 
1240 /*
1241  * Power up from Power Save / Global Power Down Mode.
1242  *
1243  * We assume no ym interrupt shall occur, since the chip is
1244  * in power-down mode (or should be blocked by splaudio()).
1245  */
1246 static void
1247 ym_chip_powerup(struct ym_softc *sc, int nosleep)
1248 {
1249 	int wchan;
1250 	uint8_t pw;
1251 
1252 	DPRINTF(("%s: ym_chip_powerup\n", DVNAME(sc)));
1253 
1254 	pw = ym_read(sc, SA3_PWR_MNG);
1255 
1256 	if ((pw & (SA3_PWR_MNG_PSV | SA3_PWR_MNG_PDN | SA3_PWR_MNG_PDX)) == 0)
1257 		return;		/* already on */
1258 
1259 	pw &= ~SA3_PWR_MNG_PDX;
1260 	ym_write(sc, SA3_PWR_MNG, pw);
1261 
1262 	/* wait 100 ms */
1263 	if (nosleep)
1264 		delay(100000);
1265 	else
1266 		tsleep(&wchan, PWAIT, "ym_pu1", hz / 10);
1267 
1268 	pw &= ~(SA3_PWR_MNG_PSV | SA3_PWR_MNG_PDN);
1269 	ym_write(sc, SA3_PWR_MNG, pw);
1270 
1271 	/* wait 70 ms */
1272 	if (nosleep)
1273 		delay(70000);
1274 	else
1275 		tsleep(&wchan, PWAIT, "ym_pu2", hz / 14);
1276 
1277 	/* The chip is muted automatically --- unmute it now. */
1278 	ym_mute(sc, SA3_VOL_L, sc->master_mute);
1279 	ym_mute(sc, SA3_VOL_R, sc->master_mute);
1280 }
1281 
1282 /* callout handler for power-down */
1283 void
1284 ym_powerdown_blocks(void *arg)
1285 {
1286 	struct ym_softc *sc;
1287 	uint16_t parts;
1288 	uint16_t on_blocks;
1289 	uint8_t sv;
1290 	int s;
1291 
1292 	sc = arg;
1293 	on_blocks = sc->sc_on_blocks;
1294 	DPRINTF(("%s: ym_powerdown_blocks: turning_off 0x%x\n",
1295 		DVNAME(sc), sc->sc_turning_off));
1296 
1297 	s = splaudio();
1298 
1299 	on_blocks = sc->sc_on_blocks;
1300 
1301 	/* Be sure not to change the state of the chip.  Save it first. */
1302 	sv =  bus_space_read_1(sc->sc_iot, sc->sc_controlioh, SA3_CTL_INDEX);
1303 
1304 	parts = sc->sc_turning_off;
1305 
1306 	if (on_blocks & ~parts & YM_POWER_CODEC_CTL)
1307 		parts &= ~(YM_POWER_CODEC_P | YM_POWER_CODEC_R);
1308 	if (parts & YM_POWER_CODEC_CTL) {
1309 		if ((on_blocks & YM_POWER_CODEC_P) == 0)
1310 			parts |= YM_POWER_CODEC_P;
1311 		if ((on_blocks & YM_POWER_CODEC_R) == 0)
1312 			parts |= YM_POWER_CODEC_R;
1313 	}
1314 	parts &= ~YM_POWER_CODEC_PSEUDO;
1315 
1316 	/* If CODEC is being off, save the state. */
1317 	if ((sc->sc_on_blocks & YM_POWER_CODEC_DIGITAL) &&
1318 	    (sc->sc_on_blocks & ~sc->sc_turning_off &
1319 				YM_POWER_CODEC_DIGITAL) == 0)
1320 		ym_save_codec_regs(sc);
1321 
1322 	if (YM_IS_SA3(sc)) {
1323 		/* OPL3-SA3 */
1324 		ym_write(sc, SA3_DPWRDWN,
1325 		    ym_read(sc, SA3_DPWRDWN) | (u_int8_t) parts);
1326 		ym_write(sc, SA3_APWRDWN,
1327 		    ym_read(sc, SA3_APWRDWN) | (parts >> 8));
1328 	} else {
1329 		/* OPL3-SA2 (only OPL3 can be off partially) */
1330 		if (parts & YM_POWER_OPL3)
1331 			ym_write(sc, SA3_PWR_MNG,
1332 			    ym_read(sc, SA3_PWR_MNG) | SA2_PWR_MNG_FMPS);
1333 	}
1334 
1335 	if (((sc->sc_on_blocks &= ~sc->sc_turning_off) & YM_POWER_ACTIVE) == 0)
1336 		ym_chip_powerdown(sc);
1337 
1338 	sc->sc_turning_off = 0;
1339 
1340 	/* Restore the state of the chip. */
1341 	bus_space_write_1(sc->sc_iot, sc->sc_controlioh, SA3_CTL_INDEX, sv);
1342 
1343 	splx(s);
1344 }
1345 
1346 /*
1347  * Power control entry point.
1348  */
1349 void
1350 ym_power_ctl(struct ym_softc *sc, int parts, int onoff)
1351 {
1352 	int s;
1353 	int need_restore_codec;
1354 
1355 	DPRINTF(("%s: ym_power_ctl: parts = 0x%x, %s\n",
1356 		DVNAME(sc), parts, onoff ? "on" : "off"));
1357 
1358 #ifdef DIAGNOSTIC
1359 	if (curproc == NULL)
1360 		panic("ym_power_ctl: no curproc");
1361 #endif
1362 	/* This function may sleep --- needs locking. */
1363 	while (sc->sc_in_power_ctl & YM_POWER_CTL_INUSE) {
1364 		sc->sc_in_power_ctl |= YM_POWER_CTL_WANTED;
1365 		DPRINTF(("%s: ym_power_ctl: sleeping\n", DVNAME(sc)));
1366 		tsleep(&sc->sc_in_power_ctl, PWAIT, "ym_pc", 0);
1367 		DPRINTF(("%s: ym_power_ctl: awaken\n", DVNAME(sc)));
1368 	}
1369 	sc->sc_in_power_ctl |= YM_POWER_CTL_INUSE;
1370 
1371 	/* Defeat softclock interrupts. */
1372 	s = splsoftclock();
1373 
1374 	/* If ON requested to parts which are scheduled to OFF, cancel it. */
1375 	if (onoff && sc->sc_turning_off && (sc->sc_turning_off &= ~parts) == 0)
1376 		callout_stop(&sc->sc_powerdown_ch);
1377 
1378 	if (!onoff && sc->sc_turning_off)
1379 		parts &= ~sc->sc_turning_off;
1380 
1381 	/* Discard bits which are currently {on,off}. */
1382 	parts &= onoff ? ~sc->sc_on_blocks : sc->sc_on_blocks;
1383 
1384 	/* Cancel previous timeout if needed. */
1385 	if (parts != 0 && sc->sc_turning_off)
1386 		callout_stop(&sc->sc_powerdown_ch);
1387 
1388 	(void) splx(s);
1389 
1390 	if (parts == 0)
1391 		goto unlock;		/* no work to do */
1392 
1393 	if (onoff) {
1394 		/* Turning on is done immediately. */
1395 
1396 		/* If the chip is off, turn it on. */
1397 		if ((sc->sc_on_blocks & YM_POWER_ACTIVE) == 0)
1398 			ym_chip_powerup(sc, 0);
1399 
1400 		need_restore_codec = (parts & YM_POWER_CODEC_DIGITAL) &&
1401 		    (sc->sc_on_blocks & YM_POWER_CODEC_DIGITAL) == 0;
1402 
1403 		sc->sc_on_blocks |= parts;
1404 		if (parts & YM_POWER_CODEC_CTL)
1405 			parts |= YM_POWER_CODEC_P | YM_POWER_CODEC_R;
1406 
1407 		s = splaudio();
1408 
1409 		if (YM_IS_SA3(sc)) {
1410 			/* OPL3-SA3 */
1411 			ym_write(sc, SA3_DPWRDWN,
1412 			    ym_read(sc, SA3_DPWRDWN) & (u_int8_t)~parts);
1413 			ym_write(sc, SA3_APWRDWN,
1414 			    ym_read(sc, SA3_APWRDWN) & ~(parts >> 8));
1415 		} else {
1416 			/* OPL3-SA2 (only OPL3 can be off partially) */
1417 			if (parts & YM_POWER_OPL3)
1418 				ym_write(sc, SA3_PWR_MNG,
1419 				    ym_read(sc, SA3_PWR_MNG)
1420 					& ~SA2_PWR_MNG_FMPS);
1421 		}
1422 		if (need_restore_codec)
1423 			ym_restore_codec_regs(sc);
1424 
1425 		(void) splx(s);
1426 	} else {
1427 		/* Turning off is delayed. */
1428 		sc->sc_turning_off |= parts;
1429 	}
1430 
1431 	/* Schedule turning off. */
1432 	if (sc->sc_pow_mode != YM_POWER_NOSAVE && sc->sc_turning_off)
1433 		callout_reset(&sc->sc_powerdown_ch, hz * sc->sc_pow_timeout,
1434 		    ym_powerdown_blocks, sc);
1435 
1436 unlock:
1437 	if (sc->sc_in_power_ctl & YM_POWER_CTL_WANTED)
1438 		wakeup(&sc->sc_in_power_ctl);
1439 	sc->sc_in_power_ctl = 0;
1440 }
1441 #endif /* not AUDIO_NO_POWER_CTL */
1442