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ym.c revision 1.39
      1 /*	$NetBSD: ym.c,v 1.39 2010/02/24 22:37:59 dyoung 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  *
     19  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
     20  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
     21  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     22  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
     23  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
     24  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
     25  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
     26  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
     27  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
     28  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
     29  * POSSIBILITY OF SUCH DAMAGE.
     30  */
     31 
     32 /*
     33  * Copyright (c) 1998 Constantine Sapuntzakis. All rights reserved.
     34  *
     35  * Redistribution and use in source and binary forms, with or without
     36  * modification, are permitted provided that the following conditions
     37  * are met:
     38  * 1. Redistributions of source code must retain the above copyright
     39  *    notice, this list of conditions and the following disclaimer.
     40  * 2. Redistributions in binary form must reproduce the above copyright
     41  *    notice, this list of conditions and the following disclaimer in the
     42  *    documentation and/or other materials provided with the distribution.
     43  * 3. The name of the author may not be used to endorse or promote products
     44  *    derived from this software without specific prior written permission.
     45  *
     46  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
     47  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
     48  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
     49  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
     50  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
     51  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
     52  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
     53  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
     54  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
     55  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     56  */
     57 
     58 /*
     59  *  Original code from OpenBSD.
     60  */
     61 
     62 #include <sys/cdefs.h>
     63 __KERNEL_RCSID(0, "$NetBSD: ym.c,v 1.39 2010/02/24 22:37:59 dyoung Exp $");
     64 
     65 #include "mpu_ym.h"
     66 #include "opt_ym.h"
     67 
     68 #include <sys/param.h>
     69 #include <sys/systm.h>
     70 #include <sys/errno.h>
     71 #include <sys/device.h>
     72 #include <sys/fcntl.h>
     73 #include <sys/kernel.h>
     74 #include <sys/proc.h>
     75 
     76 #include <sys/cpu.h>
     77 #include <sys/intr.h>
     78 #include <sys/bus.h>
     79 
     80 #include <sys/audioio.h>
     81 #include <dev/audio_if.h>
     82 
     83 #include <dev/isa/isavar.h>
     84 #include <dev/isa/isadmavar.h>
     85 
     86 #include <dev/ic/ad1848reg.h>
     87 #include <dev/isa/ad1848var.h>
     88 #include <dev/ic/opl3sa3reg.h>
     89 #include <dev/isa/wssreg.h>
     90 #if NMPU_YM > 0
     91 #include <dev/ic/mpuvar.h>
     92 #endif
     93 #include <dev/isa/ymvar.h>
     94 #include <dev/isa/sbreg.h>
     95 
     96 /* Power management mode. */
     97 #ifndef YM_POWER_MODE
     98 #define YM_POWER_MODE		YM_POWER_POWERSAVE
     99 #endif
    100 
    101 /* Time in second before power down the chip. */
    102 #ifndef YM_POWER_OFF_SEC
    103 #define YM_POWER_OFF_SEC	5
    104 #endif
    105 
    106 /* Default mixer settings. */
    107 #ifndef YM_VOL_MASTER
    108 #define YM_VOL_MASTER		208
    109 #endif
    110 
    111 #ifndef YM_VOL_DAC
    112 #define YM_VOL_DAC		224
    113 #endif
    114 
    115 #ifndef YM_VOL_OPL3
    116 #define YM_VOL_OPL3		184
    117 #endif
    118 
    119 /*
    120  * Default position of the equalizer.
    121  */
    122 #ifndef YM_DEFAULT_TREBLE
    123 #define YM_DEFAULT_TREBLE	YM_EQ_FLAT_OFFSET
    124 #endif
    125 #ifndef YM_DEFAULT_BASS
    126 #define YM_DEFAULT_BASS		YM_EQ_FLAT_OFFSET
    127 #endif
    128 
    129 #ifdef __i386__		/* XXX */
    130 # include "joy.h"
    131 #else
    132 # define NJOY	0
    133 #endif
    134 
    135 #ifdef AUDIO_DEBUG
    136 #define DPRINTF(x)	if (ymdebug) printf x
    137 int	ymdebug = 0;
    138 #else
    139 #define DPRINTF(x)
    140 #endif
    141 #define DVNAME(softc)	(device_xname(&(softc)->sc_ad1848.sc_ad1848.sc_dev))
    142 
    143 int	ym_getdev(void *, struct audio_device *);
    144 int	ym_mixer_set_port(void *, mixer_ctrl_t *);
    145 int	ym_mixer_get_port(void *, mixer_ctrl_t *);
    146 int	ym_query_devinfo(void *, mixer_devinfo_t *);
    147 int	ym_intr(void *);
    148 #ifndef AUDIO_NO_POWER_CTL
    149 static void ym_save_codec_regs(struct ym_softc *);
    150 static void ym_restore_codec_regs(struct ym_softc *);
    151 int	ym_codec_power_ctl(void *, int);
    152 static void ym_chip_powerdown(struct ym_softc *);
    153 static void ym_chip_powerup(struct ym_softc *, int);
    154 void	ym_powerdown_blocks(void *);
    155 void	ym_power_ctl(struct ym_softc *, int, int);
    156 #endif
    157 
    158 static void ym_init(struct ym_softc *);
    159 static void ym_mute(struct ym_softc *, int, int);
    160 static void ym_set_master_gain(struct ym_softc *, struct ad1848_volume*);
    161 static void ym_hvol_to_master_gain(struct ym_softc *);
    162 static void ym_set_mic_gain(struct ym_softc *, int);
    163 static void ym_set_3d(struct ym_softc *, mixer_ctrl_t *,
    164 	struct ad1848_volume *, int);
    165 static bool ym_suspend(device_t, const pmf_qual_t *);
    166 static bool ym_resume(device_t, const pmf_qual_t *);
    167 
    168 
    169 const struct audio_hw_if ym_hw_if = {
    170 	ad1848_isa_open,
    171 	ad1848_isa_close,
    172 	NULL,
    173 	ad1848_query_encoding,
    174 	ad1848_set_params,
    175 	ad1848_round_blocksize,
    176 	ad1848_commit_settings,
    177 	NULL,
    178 	NULL,
    179 	NULL,
    180 	NULL,
    181 	ad1848_isa_halt_output,
    182 	ad1848_isa_halt_input,
    183 	NULL,
    184 	ym_getdev,
    185 	NULL,
    186 	ym_mixer_set_port,
    187 	ym_mixer_get_port,
    188 	ym_query_devinfo,
    189 	ad1848_isa_malloc,
    190 	ad1848_isa_free,
    191 	ad1848_isa_round_buffersize,
    192 	ad1848_isa_mappage,
    193 	ad1848_isa_get_props,
    194 	ad1848_isa_trigger_output,
    195 	ad1848_isa_trigger_input,
    196 	NULL,
    197 	NULL,	/* powerstate */
    198 };
    199 
    200 static inline int ym_read(struct ym_softc *, int);
    201 static inline void ym_write(struct ym_softc *, int, int);
    202 
    203 void
    204 ym_attach(struct ym_softc *sc)
    205 {
    206 	static struct ad1848_volume vol_master = {YM_VOL_MASTER, YM_VOL_MASTER};
    207 	static struct ad1848_volume vol_dac    = {YM_VOL_DAC,    YM_VOL_DAC};
    208 	static struct ad1848_volume vol_opl3   = {YM_VOL_OPL3,   YM_VOL_OPL3};
    209 	struct ad1848_softc *ac;
    210 	mixer_ctrl_t mctl;
    211 	struct audio_attach_args arg;
    212 
    213 	ac = &sc->sc_ad1848.sc_ad1848;
    214 	callout_init(&sc->sc_powerdown_ch, 0);
    215 
    216 	/* Mute the output to reduce noise during initialization. */
    217 	ym_mute(sc, SA3_VOL_L, 1);
    218 	ym_mute(sc, SA3_VOL_R, 1);
    219 
    220 	sc->sc_version = ym_read(sc, SA3_MISC) & SA3_MISC_VER;
    221 	ac->chip_name = YM_IS_SA3(sc) ? "OPL3-SA3" : "OPL3-SA2";
    222 
    223 	sc->sc_ad1848.sc_ih = isa_intr_establish(sc->sc_ic, sc->ym_irq,
    224 	    IST_EDGE, IPL_AUDIO, ym_intr, sc);
    225 
    226 #ifndef AUDIO_NO_POWER_CTL
    227 	sc->sc_ad1848.powerctl = ym_codec_power_ctl;
    228 	sc->sc_ad1848.powerarg = sc;
    229 #endif
    230 	ad1848_isa_attach(&sc->sc_ad1848);
    231 	printf("\n");
    232 	ac->parent = sc;
    233 
    234 	/* Establish chip in well known mode */
    235 	ym_set_master_gain(sc, &vol_master);
    236 	ym_set_mic_gain(sc, 0);
    237 	sc->master_mute = 0;
    238 
    239 	/* Override ad1848 settings. */
    240 	ad1848_set_channel_gain(ac, AD1848_DAC_CHANNEL, &vol_dac);
    241 	ad1848_set_channel_gain(ac, AD1848_AUX2_CHANNEL, &vol_opl3);
    242 
    243 	/*
    244 	 * Mute all external sources.  If you change this, you must
    245 	 * also change the initial value of sc->sc_external_sources
    246 	 * (currently 0 --- no external source is active).
    247 	 */
    248 	sc->mic_mute = 1;
    249 	ym_mute(sc, SA3_MIC_VOL, sc->mic_mute);
    250 	ad1848_mute_channel(ac, AD1848_AUX1_CHANNEL, MUTE_ALL);	/* CD */
    251 	ad1848_mute_channel(ac, AD1848_LINE_CHANNEL, MUTE_ALL);	/* line */
    252 	ac->mute[AD1848_AUX1_CHANNEL] = MUTE_ALL;
    253 	ac->mute[AD1848_LINE_CHANNEL] = MUTE_ALL;
    254 	/* speaker is muted by default */
    255 
    256 	/* We use only one IRQ (IRQ-A). */
    257 	ym_write(sc, SA3_IRQ_CONF, SA3_IRQ_CONF_MPU_A | SA3_IRQ_CONF_WSS_A);
    258 	ym_write(sc, SA3_HVOL_INTR_CNF, SA3_HVOL_INTR_CNF_A);
    259 
    260 	/* audio at ym attachment */
    261 	sc->sc_audiodev = audio_attach_mi(&ym_hw_if, ac, &ac->sc_dev);
    262 
    263 	/* opl at ym attachment */
    264 	if (sc->sc_opl_ioh) {
    265 		arg.type = AUDIODEV_TYPE_OPL;
    266 		arg.hwif = 0;
    267 		arg.hdl = 0;
    268 		(void)config_found(&ac->sc_dev, &arg, audioprint);
    269 	}
    270 
    271 #if NMPU_YM > 0
    272 	/* mpu at ym attachment */
    273 	if (sc->sc_mpu_ioh) {
    274 		arg.type = AUDIODEV_TYPE_MPU;
    275 		arg.hwif = 0;
    276 		arg.hdl = 0;
    277 		sc->sc_mpudev = config_found(&ac->sc_dev, &arg, audioprint);
    278 	}
    279 #endif
    280 
    281 	/* This must be AFTER the attachment of sub-devices. */
    282 	ym_init(sc);
    283 
    284 #ifndef AUDIO_NO_POWER_CTL
    285 	/*
    286 	 * Initialize power control.
    287 	 */
    288 	sc->sc_pow_mode = YM_POWER_MODE;
    289 	sc->sc_pow_timeout = YM_POWER_OFF_SEC;
    290 
    291 	sc->sc_on_blocks = sc->sc_turning_off =
    292 	    YM_POWER_CODEC_P | YM_POWER_CODEC_R |
    293 	    YM_POWER_OPL3 | YM_POWER_MPU401 | YM_POWER_3D |
    294 	    YM_POWER_CODEC_DA | YM_POWER_CODEC_AD | YM_POWER_OPL3_DA;
    295 #if NJOY > 0
    296 	sc->sc_on_blocks |= YM_POWER_JOYSTICK;	/* prevents chip powerdown */
    297 #endif
    298 	ym_powerdown_blocks(sc);
    299 
    300 	if (!pmf_device_register(&ac->sc_dev, ym_suspend, ym_resume)) {
    301 		aprint_error_dev(&ac->sc_dev,
    302 		    "cannot set power mgmt handler\n");
    303 	}
    304 #endif
    305 
    306 	/* Set tone control to the default position. */
    307 	mctl.un.value.num_channels = 1;
    308 	mctl.un.value.level[AUDIO_MIXER_LEVEL_MONO] = YM_DEFAULT_TREBLE;
    309 	mctl.dev = YM_MASTER_TREBLE;
    310 	ym_mixer_set_port(sc, &mctl);
    311 	mctl.un.value.level[AUDIO_MIXER_LEVEL_MONO] = YM_DEFAULT_BASS;
    312 	mctl.dev = YM_MASTER_BASS;
    313 	ym_mixer_set_port(sc, &mctl);
    314 
    315 	/* Unmute the output now if the chip is on. */
    316 #ifndef AUDIO_NO_POWER_CTL
    317 	if (sc->sc_on_blocks & YM_POWER_ACTIVE)
    318 #endif
    319 	{
    320 		ym_mute(sc, SA3_VOL_L, sc->master_mute);
    321 		ym_mute(sc, SA3_VOL_R, sc->master_mute);
    322 	}
    323 }
    324 
    325 static inline int
    326 ym_read(struct ym_softc *sc, int reg)
    327 {
    328 
    329 	bus_space_write_1(sc->sc_iot, sc->sc_controlioh,
    330 	    SA3_CTL_INDEX, (reg & 0xff));
    331 	return bus_space_read_1(sc->sc_iot, sc->sc_controlioh, SA3_CTL_DATA);
    332 }
    333 
    334 static inline void
    335 ym_write(struct ym_softc *sc, int reg, int data)
    336 {
    337 
    338 	bus_space_write_1(sc->sc_iot, sc->sc_controlioh,
    339 	    SA3_CTL_INDEX, (reg & 0xff));
    340 	bus_space_write_1(sc->sc_iot, sc->sc_controlioh,
    341 	    SA3_CTL_DATA, (data & 0xff));
    342 }
    343 
    344 static void
    345 ym_init(struct ym_softc *sc)
    346 {
    347 	uint8_t dpd, apd;
    348 
    349 	/* Mute SoundBlaster output if possible. */
    350 	if (sc->sc_sb_ioh) {
    351 		bus_space_write_1(sc->sc_iot, sc->sc_sb_ioh, SBP_MIXER_ADDR,
    352 		    SBP_MASTER_VOL);
    353 		bus_space_write_1(sc->sc_iot, sc->sc_sb_ioh, SBP_MIXER_DATA,
    354 		    0x00);
    355 	}
    356 
    357 	if (!YM_IS_SA3(sc)) {
    358 		/* OPL3-SA2 */
    359 		ym_write(sc, SA3_PWR_MNG, SA2_PWR_MNG_CLKO |
    360 		    (sc->sc_opl_ioh == 0 ? SA2_PWR_MNG_FMPS : 0));
    361 		return;
    362 	}
    363 
    364 	/* OPL3-SA3 */
    365 	/* Figure out which part can be power down. */
    366 	dpd = SA3_DPWRDWN_SB		/* we never use SB */
    367 #if NMPU_YM > 0
    368 	    | (sc->sc_mpu_ioh ? 0 : SA3_DPWRDWN_MPU)
    369 #else
    370 	    | SA3_DPWRDWN_MPU
    371 #endif
    372 #if NJOY == 0
    373 	    | SA3_DPWRDWN_JOY
    374 #endif
    375 	    | SA3_DPWRDWN_PNP	/* ISA Plug and Play is done */
    376 	    /*
    377 	     * The master clock is for external wavetable synthesizer
    378 	     * OPL4-ML (YMF704) or OPL4-ML2 (YMF721),
    379 	     * and is currently unused.
    380 	     */
    381 	    | SA3_DPWRDWN_MCLKO;
    382 
    383 	apd = SA3_APWRDWN_SBDAC;	/* we never use SB */
    384 
    385 	/* Power down OPL3 if not attached. */
    386 	if (sc->sc_opl_ioh == 0) {
    387 		dpd |= SA3_DPWRDWN_FM;
    388 		apd |= SA3_APWRDWN_FMDAC;
    389 	}
    390 	/* CODEC is always attached. */
    391 
    392 	/* Power down unused digital parts. */
    393 	ym_write(sc, SA3_DPWRDWN, dpd);
    394 
    395 	/* Power down unused analog parts. */
    396 	ym_write(sc, SA3_APWRDWN, apd);
    397 }
    398 
    399 
    400 int
    401 ym_getdev(void *addr, struct audio_device *retp)
    402 {
    403 	struct ym_softc *sc;
    404 	struct ad1848_softc *ac;
    405 
    406 	sc = addr;
    407 	ac = &sc->sc_ad1848.sc_ad1848;
    408 	strlcpy(retp->name, ac->chip_name, sizeof(retp->name));
    409 	snprintf(retp->version, sizeof(retp->version), "%d", sc->sc_version);
    410 	strlcpy(retp->config, "ym", sizeof(retp->config));
    411 
    412 	return 0;
    413 }
    414 
    415 
    416 static ad1848_devmap_t mappings[] = {
    417 	{ YM_DAC_LVL, AD1848_KIND_LVL, AD1848_DAC_CHANNEL },
    418 	{ YM_MIDI_LVL, AD1848_KIND_LVL, AD1848_AUX2_CHANNEL },
    419 	{ YM_CD_LVL, AD1848_KIND_LVL, AD1848_AUX1_CHANNEL },
    420 	{ YM_LINE_LVL, AD1848_KIND_LVL, AD1848_LINE_CHANNEL },
    421 	{ YM_SPEAKER_LVL, AD1848_KIND_LVL, AD1848_MONO_CHANNEL },
    422 	{ YM_MONITOR_LVL, AD1848_KIND_LVL, AD1848_MONITOR_CHANNEL },
    423 	{ YM_DAC_MUTE, AD1848_KIND_MUTE, AD1848_DAC_CHANNEL },
    424 	{ YM_MIDI_MUTE, AD1848_KIND_MUTE, AD1848_AUX2_CHANNEL },
    425 	{ YM_CD_MUTE, AD1848_KIND_MUTE, AD1848_AUX1_CHANNEL },
    426 	{ YM_LINE_MUTE, AD1848_KIND_MUTE, AD1848_LINE_CHANNEL },
    427 	{ YM_SPEAKER_MUTE, AD1848_KIND_MUTE, AD1848_MONO_CHANNEL },
    428 	{ YM_MONITOR_MUTE, AD1848_KIND_MUTE, AD1848_MONITOR_CHANNEL },
    429 	{ YM_REC_LVL, AD1848_KIND_RECORDGAIN, -1 },
    430 	{ YM_RECORD_SOURCE, AD1848_KIND_RECORDSOURCE, -1}
    431 };
    432 
    433 #define NUMMAP	(sizeof(mappings) / sizeof(mappings[0]))
    434 
    435 
    436 static void
    437 ym_mute(struct ym_softc *sc, int left_reg, int mute)
    438 {
    439 	uint8_t reg;
    440 
    441 	reg = ym_read(sc, left_reg);
    442 	if (mute)
    443 		ym_write(sc, left_reg, reg | 0x80);
    444 	else
    445 		ym_write(sc, left_reg, reg & ~0x80);
    446 }
    447 
    448 
    449 static void
    450 ym_set_master_gain(struct ym_softc *sc, struct ad1848_volume *vol)
    451 {
    452 	u_int atten;
    453 
    454 	sc->master_gain = *vol;
    455 
    456 	atten = ((AUDIO_MAX_GAIN - vol->left) * (SA3_VOL_MV + 1)) /
    457 		(AUDIO_MAX_GAIN + 1);
    458 
    459 	ym_write(sc, SA3_VOL_L, (ym_read(sc, SA3_VOL_L) & ~SA3_VOL_MV) | atten);
    460 
    461 	atten = ((AUDIO_MAX_GAIN - vol->right) * (SA3_VOL_MV + 1)) /
    462 		(AUDIO_MAX_GAIN + 1);
    463 
    464 	ym_write(sc, SA3_VOL_R, (ym_read(sc, SA3_VOL_R) & ~SA3_VOL_MV) | atten);
    465 }
    466 
    467 /*
    468  * Read current setting of master volume from hardware
    469  * and update the software value if changed.
    470  * [SA3] This function clears hardware volume interrupt.
    471  */
    472 static void
    473 ym_hvol_to_master_gain(struct ym_softc *sc)
    474 {
    475 	u_int prevval, val;
    476 	int changed;
    477 
    478 	changed = 0;
    479 	val = SA3_VOL_MV & ~ym_read(sc, SA3_VOL_L);
    480 	prevval = (sc->master_gain.left * (SA3_VOL_MV + 1)) /
    481 	    (AUDIO_MAX_GAIN + 1);
    482 	if (val != prevval) {
    483 		sc->master_gain.left =
    484 		    val * ((AUDIO_MAX_GAIN + 1) / (SA3_VOL_MV + 1));
    485 		changed = 1;
    486 	}
    487 
    488 	val = SA3_VOL_MV & ~ym_read(sc, SA3_VOL_R);
    489 	prevval = (sc->master_gain.right * (SA3_VOL_MV + 1)) /
    490 	    (AUDIO_MAX_GAIN + 1);
    491 	if (val != prevval) {
    492 		sc->master_gain.right =
    493 		    val * ((AUDIO_MAX_GAIN + 1) / (SA3_VOL_MV + 1));
    494 		changed = 1;
    495 	}
    496 
    497 #if 0	/* XXX NOT YET */
    498 	/* Notify the change to async processes. */
    499 	if (changed && sc->sc_audiodev)
    500 		mixer_signal(sc->sc_audiodev);
    501 #endif
    502 }
    503 
    504 static void
    505 ym_set_mic_gain(struct ym_softc *sc, int vol)
    506 {
    507 	u_int atten;
    508 
    509 	sc->mic_gain = vol;
    510 
    511 	atten = ((AUDIO_MAX_GAIN - vol) * (SA3_MIC_MCV + 1)) /
    512 		(AUDIO_MAX_GAIN + 1);
    513 
    514 	ym_write(sc, SA3_MIC_VOL,
    515 		 (ym_read(sc, SA3_MIC_VOL) & ~SA3_MIC_MCV) | atten);
    516 }
    517 
    518 static void
    519 ym_set_3d(struct ym_softc *sc, mixer_ctrl_t *cp,
    520     struct ad1848_volume *val, int reg)
    521 {
    522 	uint8_t l, r, e;
    523 
    524 	ad1848_to_vol(cp, val);
    525 
    526 	l = val->left;
    527 	r = val->right;
    528 	if (reg != SA3_3D_WIDE) {
    529 		/* flat on center */
    530 		l = YM_EQ_EXPAND_VALUE(l);
    531 		r = YM_EQ_EXPAND_VALUE(r);
    532 	}
    533 
    534 	e = (l * (SA3_3D_BITS + 1) + (SA3_3D_BITS + 1) / 2) /
    535 	    (AUDIO_MAX_GAIN + 1) << SA3_3D_LSHIFT |
    536 	    (r * (SA3_3D_BITS + 1) + (SA3_3D_BITS + 1) / 2) /
    537 	    (AUDIO_MAX_GAIN + 1) << SA3_3D_RSHIFT;
    538 
    539 #ifndef AUDIO_NO_POWER_CTL
    540 	/* turn wide stereo on if necessary */
    541 	if (e)
    542 		ym_power_ctl(sc, YM_POWER_3D, 1);
    543 #endif
    544 
    545 	ym_write(sc, reg, e);
    546 
    547 #ifndef AUDIO_NO_POWER_CTL
    548 	/* turn wide stereo off if necessary */
    549 	if (YM_EQ_OFF(&sc->sc_treble) && YM_EQ_OFF(&sc->sc_bass) &&
    550 	    YM_WIDE_OFF(&sc->sc_wide))
    551 		ym_power_ctl(sc, YM_POWER_3D, 0);
    552 #endif
    553 }
    554 
    555 int
    556 ym_mixer_set_port(void *addr, mixer_ctrl_t *cp)
    557 {
    558 	struct ad1848_softc *ac;
    559 	struct ym_softc *sc;
    560 	struct ad1848_volume vol;
    561 	int error;
    562 	uint8_t extsources;
    563 
    564 	ac = addr;
    565 	sc = ac->parent;
    566 	error = 0;
    567 	DPRINTF(("%s: ym_mixer_set_port: dev 0x%x, type 0x%x, 0x%x (%d; %d, %d)\n",
    568 		DVNAME(sc), cp->dev, cp->type, cp->un.ord,
    569 		cp->un.value.num_channels, cp->un.value.level[0],
    570 		cp->un.value.level[1]));
    571 
    572 	/* SA2 doesn't have equalizer */
    573 	if (!YM_IS_SA3(sc) && YM_MIXER_SA3_ONLY(cp->dev))
    574 		return ENXIO;
    575 
    576 #ifndef AUDIO_NO_POWER_CTL
    577 	/* Power-up chip */
    578 	ym_power_ctl(sc, YM_POWER_CODEC_CTL, 1);
    579 #endif
    580 
    581 	switch (cp->dev) {
    582 	case YM_OUTPUT_LVL:
    583 		ad1848_to_vol(cp, &vol);
    584 		ym_set_master_gain(sc, &vol);
    585 		goto out;
    586 
    587 	case YM_OUTPUT_MUTE:
    588 		sc->master_mute = (cp->un.ord != 0);
    589 		ym_mute(sc, SA3_VOL_L, sc->master_mute);
    590 		ym_mute(sc, SA3_VOL_R, sc->master_mute);
    591 		goto out;
    592 
    593 	case YM_MIC_LVL:
    594 		if (cp->un.value.num_channels != 1)
    595 			error = EINVAL;
    596 		else
    597 			ym_set_mic_gain(sc,
    598 			    cp->un.value.level[AUDIO_MIXER_LEVEL_MONO]);
    599 		goto out;
    600 
    601 	case YM_MASTER_EQMODE:
    602 		sc->sc_eqmode = cp->un.ord & SA3_SYS_CTL_YMODE;
    603 		ym_write(sc, SA3_SYS_CTL, (ym_read(sc, SA3_SYS_CTL) &
    604 			     ~SA3_SYS_CTL_YMODE) | sc->sc_eqmode);
    605 		goto out;
    606 
    607 	case YM_MASTER_TREBLE:
    608 		ym_set_3d(sc, cp, &sc->sc_treble, SA3_3D_TREBLE);
    609 		goto out;
    610 
    611 	case YM_MASTER_BASS:
    612 		ym_set_3d(sc, cp, &sc->sc_bass, SA3_3D_BASS);
    613 		goto out;
    614 
    615 	case YM_MASTER_WIDE:
    616 		ym_set_3d(sc, cp, &sc->sc_wide, SA3_3D_WIDE);
    617 		goto out;
    618 
    619 #ifndef AUDIO_NO_POWER_CTL
    620 	case YM_PWR_MODE:
    621 		if ((unsigned) cp->un.ord > YM_POWER_NOSAVE)
    622 			error = EINVAL;
    623 		else
    624 			sc->sc_pow_mode = cp->un.ord;
    625 		goto out;
    626 
    627 	case YM_PWR_TIMEOUT:
    628 		if (cp->un.value.num_channels != 1)
    629 			error = EINVAL;
    630 		else
    631 			sc->sc_pow_timeout =
    632 			    cp->un.value.level[AUDIO_MIXER_LEVEL_MONO];
    633 		goto out;
    634 
    635 	/*
    636 	 * Needs power-up to hear external sources.
    637 	 */
    638 	case YM_CD_MUTE:
    639 	case YM_LINE_MUTE:
    640 	case YM_SPEAKER_MUTE:
    641 	case YM_MIC_MUTE:
    642 		extsources = YM_MIXER_TO_XS(cp->dev);
    643 		if (cp->un.ord) {
    644 			if ((sc->sc_external_sources &= ~extsources) == 0) {
    645 				/*
    646 				 * All the external sources are muted
    647 				 *  --- no need to keep the chip on.
    648 				 */
    649 				ym_power_ctl(sc, YM_POWER_EXT_SRC, 0);
    650 				DPRINTF(("%s: ym_mixer_set_port: off for ext\n",
    651 					DVNAME(sc)));
    652 			}
    653 		} else {
    654 			/* mute off - power-up the chip */
    655 			sc->sc_external_sources |= extsources;
    656 			ym_power_ctl(sc, YM_POWER_EXT_SRC, 1);
    657 			DPRINTF(("%s: ym_mixer_set_port: on for ext\n",
    658 				DVNAME(sc)));
    659 		}
    660 		break;	/* fall to ad1848_mixer_set_port() */
    661 
    662 	/*
    663 	 * Power on/off the playback part for monitoring.
    664 	 */
    665 	case YM_MONITOR_MUTE:
    666 		if ((ac->open_mode & (FREAD | FWRITE)) == FREAD)
    667 			ym_power_ctl(sc, YM_POWER_CODEC_P | YM_POWER_CODEC_DA,
    668 			    cp->un.ord == 0);
    669 		break;	/* fall to ad1848_mixer_set_port() */
    670 #endif
    671 	}
    672 
    673 	error = ad1848_mixer_set_port(ac, mappings, NUMMAP, cp);
    674 
    675 	if (error != ENXIO)
    676 		goto out;
    677 
    678 	error = 0;
    679 
    680 	switch (cp->dev) {
    681 	case YM_MIC_MUTE:
    682 		sc->mic_mute = (cp->un.ord != 0);
    683 		ym_mute(sc, SA3_MIC_VOL, sc->mic_mute);
    684 		break;
    685 
    686 	default:
    687 		error = ENXIO;
    688 		break;
    689 	}
    690 
    691 out:
    692 #ifndef AUDIO_NO_POWER_CTL
    693 	/* Power-down chip */
    694 	ym_power_ctl(sc, YM_POWER_CODEC_CTL, 0);
    695 #endif
    696 
    697 	return error;
    698 }
    699 
    700 int
    701 ym_mixer_get_port(void *addr, mixer_ctrl_t *cp)
    702 {
    703 	struct ad1848_softc *ac;
    704 	struct ym_softc *sc;
    705 	int error;
    706 
    707 	ac = addr;
    708 	sc = ac->parent;
    709 	/* SA2 doesn't have equalizer */
    710 	if (!YM_IS_SA3(sc) && YM_MIXER_SA3_ONLY(cp->dev))
    711 		return ENXIO;
    712 
    713 	switch (cp->dev) {
    714 	case YM_OUTPUT_LVL:
    715 		if (!YM_IS_SA3(sc)) {
    716 			/*
    717 			 * SA2 doesn't have hardware volume interrupt.
    718 			 * Read current value and update every time.
    719 			 */
    720 #ifndef AUDIO_NO_POWER_CTL
    721 			/* Power-up chip */
    722 			ym_power_ctl(sc, YM_POWER_CODEC_CTL, 1);
    723 #endif
    724 			ym_hvol_to_master_gain(sc);
    725 #ifndef AUDIO_NO_POWER_CTL
    726 			/* Power-down chip */
    727 			ym_power_ctl(sc, YM_POWER_CODEC_CTL, 0);
    728 #endif
    729 		}
    730 		ad1848_from_vol(cp, &sc->master_gain);
    731 		return 0;
    732 
    733 	case YM_OUTPUT_MUTE:
    734 		cp->un.ord = sc->master_mute;
    735 		return 0;
    736 
    737 	case YM_MIC_LVL:
    738 		if (cp->un.value.num_channels != 1)
    739 			return EINVAL;
    740 		cp->un.value.level[AUDIO_MIXER_LEVEL_MONO] = sc->mic_gain;
    741 		return 0;
    742 
    743 	case YM_MASTER_EQMODE:
    744 		cp->un.ord = sc->sc_eqmode;
    745 		return 0;
    746 
    747 	case YM_MASTER_TREBLE:
    748 		ad1848_from_vol(cp, &sc->sc_treble);
    749 		return 0;
    750 
    751 	case YM_MASTER_BASS:
    752 		ad1848_from_vol(cp, &sc->sc_bass);
    753 		return 0;
    754 
    755 	case YM_MASTER_WIDE:
    756 		ad1848_from_vol(cp, &sc->sc_wide);
    757 		return 0;
    758 
    759 #ifndef AUDIO_NO_POWER_CTL
    760 	case YM_PWR_MODE:
    761 		cp->un.ord = sc->sc_pow_mode;
    762 		return 0;
    763 
    764 	case YM_PWR_TIMEOUT:
    765 		if (cp->un.value.num_channels != 1)
    766 			return EINVAL;
    767 		cp->un.value.level[AUDIO_MIXER_LEVEL_MONO] = sc->sc_pow_timeout;
    768 		return 0;
    769 #endif
    770 	}
    771 
    772 	error = ad1848_mixer_get_port(ac, mappings, NUMMAP, cp);
    773 
    774 	if (error != ENXIO)
    775 		return error;
    776 
    777 	error = 0;
    778 
    779 	switch (cp->dev) {
    780 	case YM_MIC_MUTE:
    781 		cp->un.ord = sc->mic_mute;
    782 		break;
    783 
    784 	default:
    785 		error = ENXIO;
    786 		break;
    787 	}
    788 
    789 	return error;
    790 }
    791 
    792 static const char *mixer_classes[] = {
    793 	AudioCinputs, AudioCrecord, AudioCoutputs, AudioCmonitor,
    794 #ifndef AUDIO_NO_POWER_CTL
    795 	AudioCpower,
    796 #endif
    797 	AudioCequalization
    798 };
    799 
    800 int
    801 ym_query_devinfo(void *addr, mixer_devinfo_t *dip)
    802 {
    803 	static const char *mixer_port_names[] = {
    804 		AudioNdac, AudioNmidi, AudioNcd, AudioNline, AudioNspeaker,
    805 		AudioNmicrophone, AudioNmonitor
    806 	};
    807 	struct ad1848_softc *ac;
    808 	struct ym_softc *sc;
    809 
    810 	ac = addr;
    811 	sc = ac->parent;
    812 	/* SA2 doesn't have equalizer */
    813 	if (!YM_IS_SA3(sc) && YM_MIXER_SA3_ONLY(dip->index))
    814 		return ENXIO;
    815 
    816 	dip->next = dip->prev = AUDIO_MIXER_LAST;
    817 
    818 	switch(dip->index) {
    819 	case YM_INPUT_CLASS:
    820 	case YM_OUTPUT_CLASS:
    821 	case YM_MONITOR_CLASS:
    822 	case YM_RECORD_CLASS:
    823 #ifndef AUDIO_NO_POWER_CTL
    824 	case YM_PWR_CLASS:
    825 #endif
    826 	case YM_EQ_CLASS:
    827 		dip->type = AUDIO_MIXER_CLASS;
    828 		dip->mixer_class = dip->index;
    829 		strcpy(dip->label.name,
    830 		       mixer_classes[dip->index - YM_INPUT_CLASS]);
    831 		break;
    832 
    833 	case YM_DAC_LVL:
    834 	case YM_MIDI_LVL:
    835 	case YM_CD_LVL:
    836 	case YM_LINE_LVL:
    837 	case YM_SPEAKER_LVL:
    838 	case YM_MIC_LVL:
    839 	case YM_MONITOR_LVL:
    840 		dip->type = AUDIO_MIXER_VALUE;
    841 		if (dip->index == YM_MONITOR_LVL)
    842 			dip->mixer_class = YM_MONITOR_CLASS;
    843 		else
    844 			dip->mixer_class = YM_INPUT_CLASS;
    845 
    846 		dip->next = dip->index + 7;
    847 
    848 		strcpy(dip->label.name,
    849 		       mixer_port_names[dip->index - YM_DAC_LVL]);
    850 
    851 		if (dip->index == YM_SPEAKER_LVL ||
    852 		    dip->index == YM_MIC_LVL)
    853 			dip->un.v.num_channels = 1;
    854 		else
    855 			dip->un.v.num_channels = 2;
    856 
    857 		if (dip->index == YM_SPEAKER_LVL)
    858 			dip->un.v.delta = 1 << (8 - 4 /* valid bits */);
    859 		else if (dip->index == YM_DAC_LVL ||
    860 		    dip->index == YM_MONITOR_LVL)
    861 			dip->un.v.delta = 1 << (8 - 6 /* valid bits */);
    862 		else
    863 			dip->un.v.delta = 1 << (8 - 5 /* valid bits */);
    864 
    865 		strcpy(dip->un.v.units.name, AudioNvolume);
    866 		break;
    867 
    868 	case YM_DAC_MUTE:
    869 	case YM_MIDI_MUTE:
    870 	case YM_CD_MUTE:
    871 	case YM_LINE_MUTE:
    872 	case YM_SPEAKER_MUTE:
    873 	case YM_MIC_MUTE:
    874 	case YM_MONITOR_MUTE:
    875 		if (dip->index == YM_MONITOR_MUTE)
    876 			dip->mixer_class = YM_MONITOR_CLASS;
    877 		else
    878 			dip->mixer_class = YM_INPUT_CLASS;
    879 		dip->type = AUDIO_MIXER_ENUM;
    880 		dip->prev = dip->index - 7;
    881 	mute:
    882 		strcpy(dip->label.name, AudioNmute);
    883 		dip->un.e.num_mem = 2;
    884 		strcpy(dip->un.e.member[0].label.name, AudioNoff);
    885 		dip->un.e.member[0].ord = 0;
    886 		strcpy(dip->un.e.member[1].label.name, AudioNon);
    887 		dip->un.e.member[1].ord = 1;
    888 		break;
    889 
    890 
    891 	case YM_OUTPUT_LVL:
    892 		dip->type = AUDIO_MIXER_VALUE;
    893 		dip->mixer_class = YM_OUTPUT_CLASS;
    894 		dip->next = YM_OUTPUT_MUTE;
    895 		strcpy(dip->label.name, AudioNmaster);
    896 		dip->un.v.num_channels = 2;
    897 		dip->un.v.delta = (AUDIO_MAX_GAIN + 1) / (SA3_VOL_MV + 1);
    898 		strcpy(dip->un.v.units.name, AudioNvolume);
    899 		break;
    900 
    901 	case YM_OUTPUT_MUTE:
    902 		dip->mixer_class = YM_OUTPUT_CLASS;
    903 		dip->type = AUDIO_MIXER_ENUM;
    904 		dip->prev = YM_OUTPUT_LVL;
    905 		goto mute;
    906 
    907 
    908 	case YM_REC_LVL:	/* record level */
    909 		dip->type = AUDIO_MIXER_VALUE;
    910 		dip->mixer_class = YM_RECORD_CLASS;
    911 		dip->next = YM_RECORD_SOURCE;
    912 		strcpy(dip->label.name, AudioNrecord);
    913 		dip->un.v.num_channels = 2;
    914 		dip->un.v.delta = 1 << (8 - 4 /* valid bits */);
    915 		strcpy(dip->un.v.units.name, AudioNvolume);
    916 		break;
    917 
    918 	case YM_RECORD_SOURCE:
    919 		dip->mixer_class = YM_RECORD_CLASS;
    920 		dip->type = AUDIO_MIXER_ENUM;
    921 		dip->prev = YM_REC_LVL;
    922 		strcpy(dip->label.name, AudioNsource);
    923 		dip->un.e.num_mem = 4;
    924 		strcpy(dip->un.e.member[0].label.name, AudioNmicrophone);
    925 		dip->un.e.member[0].ord = MIC_IN_PORT;
    926 		strcpy(dip->un.e.member[1].label.name, AudioNline);
    927 		dip->un.e.member[1].ord = LINE_IN_PORT;
    928 		strcpy(dip->un.e.member[2].label.name, AudioNdac);
    929 		dip->un.e.member[2].ord = DAC_IN_PORT;
    930 		strcpy(dip->un.e.member[3].label.name, AudioNcd);
    931 		dip->un.e.member[3].ord = AUX1_IN_PORT;
    932 		break;
    933 
    934 
    935 	case YM_MASTER_EQMODE:
    936 		dip->type = AUDIO_MIXER_ENUM;
    937 		dip->mixer_class = YM_EQ_CLASS;
    938 		strcpy(dip->label.name, AudioNmode);
    939 		strcpy(dip->un.v.units.name, AudioNmode);
    940 		dip->un.e.num_mem = 4;
    941 		strcpy(dip->un.e.member[0].label.name, AudioNdesktop);
    942 		dip->un.e.member[0].ord = SA3_SYS_CTL_YMODE0;
    943 		strcpy(dip->un.e.member[1].label.name, AudioNlaptop);
    944 		dip->un.e.member[1].ord = SA3_SYS_CTL_YMODE1;
    945 		strcpy(dip->un.e.member[2].label.name, AudioNsubnote);
    946 		dip->un.e.member[2].ord = SA3_SYS_CTL_YMODE2;
    947 		strcpy(dip->un.e.member[3].label.name, AudioNhifi);
    948 		dip->un.e.member[3].ord = SA3_SYS_CTL_YMODE3;
    949 		break;
    950 
    951 	case YM_MASTER_TREBLE:
    952 		dip->type = AUDIO_MIXER_VALUE;
    953 		dip->mixer_class = YM_EQ_CLASS;
    954 		strcpy(dip->label.name, AudioNtreble);
    955 		dip->un.v.num_channels = 2;
    956 		dip->un.v.delta = (AUDIO_MAX_GAIN + 1) / (SA3_3D_BITS + 1)
    957 		    >> YM_EQ_REDUCE_BIT;
    958 		strcpy(dip->un.v.units.name, AudioNtreble);
    959 		break;
    960 
    961 	case YM_MASTER_BASS:
    962 		dip->type = AUDIO_MIXER_VALUE;
    963 		dip->mixer_class = YM_EQ_CLASS;
    964 		strcpy(dip->label.name, AudioNbass);
    965 		dip->un.v.num_channels = 2;
    966 		dip->un.v.delta = (AUDIO_MAX_GAIN + 1) / (SA3_3D_BITS + 1)
    967 		    >> YM_EQ_REDUCE_BIT;
    968 		strcpy(dip->un.v.units.name, AudioNbass);
    969 		break;
    970 
    971 	case YM_MASTER_WIDE:
    972 		dip->type = AUDIO_MIXER_VALUE;
    973 		dip->mixer_class = YM_EQ_CLASS;
    974 		strcpy(dip->label.name, AudioNsurround);
    975 		dip->un.v.num_channels = 2;
    976 		dip->un.v.delta = (AUDIO_MAX_GAIN + 1) / (SA3_3D_BITS + 1);
    977 		strcpy(dip->un.v.units.name, AudioNsurround);
    978 		break;
    979 
    980 
    981 #ifndef AUDIO_NO_POWER_CTL
    982 	case YM_PWR_MODE:
    983 		dip->type = AUDIO_MIXER_ENUM;
    984 		dip->mixer_class = YM_PWR_CLASS;
    985 		dip->next = YM_PWR_TIMEOUT;
    986 		strcpy(dip->label.name, AudioNsave);
    987 		dip->un.e.num_mem = 3;
    988 		strcpy(dip->un.e.member[0].label.name, AudioNpowerdown);
    989 		dip->un.e.member[0].ord = YM_POWER_POWERDOWN;
    990 		strcpy(dip->un.e.member[1].label.name, AudioNpowersave);
    991 		dip->un.e.member[1].ord = YM_POWER_POWERSAVE;
    992 		strcpy(dip->un.e.member[2].label.name, AudioNnosave);
    993 		dip->un.e.member[2].ord = YM_POWER_NOSAVE;
    994 		break;
    995 
    996 	case YM_PWR_TIMEOUT:
    997 		dip->type = AUDIO_MIXER_VALUE;
    998 		dip->mixer_class = YM_PWR_CLASS;
    999 		dip->prev = YM_PWR_MODE;
   1000 		strcpy(dip->label.name, AudioNtimeout);
   1001 		dip->un.v.num_channels = 1;
   1002 		strcpy(dip->un.v.units.name, AudioNtimeout);
   1003 		break;
   1004 #endif /* not AUDIO_NO_POWER_CTL */
   1005 
   1006 	default:
   1007 		return ENXIO;
   1008 		/*NOTREACHED*/
   1009 	}
   1010 
   1011 	return 0;
   1012 }
   1013 
   1014 int
   1015 ym_intr(void *arg)
   1016 {
   1017 	struct ym_softc *sc = arg;
   1018 #if NMPU_YM > 0
   1019 	struct mpu_softc *sc_mpu = device_private(sc->sc_mpudev);
   1020 #endif
   1021 	u_int8_t ist;
   1022 	int processed;
   1023 
   1024 	/* OPL3 timer is currently unused. */
   1025 	if (((ist = ym_read(sc, SA3_IRQA_STAT)) &
   1026 	     ~(SA3_IRQ_STAT_SB|SA3_IRQ_STAT_OPL3)) == 0) {
   1027 		DPRINTF(("%s: ym_intr: spurious interrupt\n", DVNAME(sc)));
   1028 		return 0;
   1029 	}
   1030 
   1031 	/* Process pending interrupts. */
   1032 	do {
   1033 		processed = 0;
   1034 		/*
   1035 		 * CODEC interrupts.
   1036 		 */
   1037 		if (ist & (SA3_IRQ_STAT_TI|SA3_IRQ_STAT_CI|SA3_IRQ_STAT_PI)) {
   1038 			ad1848_isa_intr(&sc->sc_ad1848);
   1039 			processed = 1;
   1040 		}
   1041 #if NMPU_YM > 0
   1042 		/*
   1043 		 * MPU401 interrupt.
   1044 		 */
   1045 		if (ist & SA3_IRQ_STAT_MPU) {
   1046 			mpu_intr(sc_mpu);
   1047 			processed = 1;
   1048 		}
   1049 #endif
   1050 		/*
   1051 		 * Hardware volume interrupt (SA3 only).
   1052 		 * Recalculate master volume from the hardware setting.
   1053 		 */
   1054 		if ((ist & SA3_IRQ_STAT_MV) && YM_IS_SA3(sc)) {
   1055 			ym_hvol_to_master_gain(sc);
   1056 			processed = 1;
   1057 		}
   1058 	} while (processed && (ist = ym_read(sc, SA3_IRQA_STAT)));
   1059 
   1060 	return 1;
   1061 }
   1062 
   1063 
   1064 #ifndef AUDIO_NO_POWER_CTL
   1065 static void
   1066 ym_save_codec_regs(struct ym_softc *sc)
   1067 {
   1068 	struct ad1848_softc *ac;
   1069 	int i;
   1070 
   1071 	DPRINTF(("%s: ym_save_codec_regs\n", DVNAME(sc)));
   1072 	ac = &sc->sc_ad1848.sc_ad1848;
   1073 	for (i = 0; i <= 0x1f; i++)
   1074 		sc->sc_codec_scan[i] = ad_read(ac, i);
   1075 }
   1076 
   1077 static void
   1078 ym_restore_codec_regs(struct ym_softc *sc)
   1079 {
   1080 	struct ad1848_softc *ac;
   1081 	int i, t;
   1082 
   1083 	DPRINTF(("%s: ym_restore_codec_regs\n", DVNAME(sc)));
   1084 	ac = &sc->sc_ad1848.sc_ad1848;
   1085 	for (i = 0; i <= 0x1f; i++) {
   1086 		/*
   1087 		 * Wait til the chip becomes ready.
   1088 		 * This is required after suspend/resume.
   1089 		 */
   1090 		for (t = 0;
   1091 		    t < 100000 && ADREAD(ac, AD1848_IADDR) & SP_IN_INIT; t++)
   1092 			;
   1093 #ifdef AUDIO_DEBUG
   1094 		if (t)
   1095 			DPRINTF(("%s: ym_restore_codec_regs: reg %d, t %d\n",
   1096 				 DVNAME(sc), i, t));
   1097 #endif
   1098 		ad_write(ac, i, sc->sc_codec_scan[i]);
   1099 	}
   1100 }
   1101 
   1102 /*
   1103  * Save and restore the state on suspending / resumning.
   1104  *
   1105  * XXX This is not complete.
   1106  * Currently only the parameters, such as output gain, are restored.
   1107  * DMA state should also be restored.  FIXME.
   1108  */
   1109 static bool
   1110 ym_suspend(device_t self, const pmf_qual_t *qual)
   1111 {
   1112 	struct ym_softc *sc = device_private(self);
   1113 	int s;
   1114 
   1115 	DPRINTF(("%s: ym_power_hook: suspend\n", DVNAME(sc)));
   1116 
   1117 	s = splaudio();
   1118 
   1119 	/*
   1120 	 * suspending...
   1121 	 */
   1122 	callout_stop(&sc->sc_powerdown_ch);
   1123 	if (sc->sc_turning_off)
   1124 		ym_powerdown_blocks(sc);
   1125 
   1126 	/*
   1127 	 * Save CODEC registers.
   1128 	 * Note that the registers read incorrect
   1129 	 * if the CODEC part is in power-down mode.
   1130 	 */
   1131 	if (sc->sc_on_blocks & YM_POWER_CODEC_DIGITAL)
   1132 		ym_save_codec_regs(sc);
   1133 
   1134 	/*
   1135 	 * Save OPL3-SA3 control registers and power-down the chip.
   1136 	 * Note that the registers read incorrect
   1137 	 * if the chip is in global power-down mode.
   1138 	 */
   1139 	sc->sc_sa3_scan[SA3_PWR_MNG] = ym_read(sc, SA3_PWR_MNG);
   1140 	if (sc->sc_on_blocks)
   1141 		ym_chip_powerdown(sc);
   1142 	splx(s);
   1143 	return true;
   1144 }
   1145 
   1146 static bool
   1147 ym_resume(device_t self, const pmf_qual_t *qual)
   1148 {
   1149 	struct ym_softc *sc = device_private(self);
   1150 	int i, xmax;
   1151 	int s;
   1152 
   1153 	DPRINTF(("%s: ym_power_hook: resume\n", DVNAME(sc)));
   1154 
   1155 	s = splaudio();
   1156 	/*
   1157 	 * resuming...
   1158 	 */
   1159 	ym_chip_powerup(sc, 1);
   1160 	ym_init(sc);		/* power-on CODEC */
   1161 
   1162 	/* Restore control registers. */
   1163 	xmax = YM_IS_SA3(sc)? YM_SAVE_REG_MAX_SA3 : YM_SAVE_REG_MAX_SA2;
   1164 	for (i = SA3_PWR_MNG + 1; i <= xmax; i++) {
   1165 		if (i == SA3_SB_SCAN || i == SA3_SB_SCAN_DATA ||
   1166 		    i == SA3_DPWRDWN)
   1167 			continue;
   1168 		ym_write(sc, i, sc->sc_sa3_scan[i]);
   1169 	}
   1170 
   1171 	/* Restore CODEC registers (including mixer). */
   1172 	ym_restore_codec_regs(sc);
   1173 
   1174 	/* Restore global/digital power-down state. */
   1175 	ym_write(sc, SA3_PWR_MNG, sc->sc_sa3_scan[SA3_PWR_MNG]);
   1176 	if (YM_IS_SA3(sc))
   1177 		ym_write(sc, SA3_DPWRDWN, sc->sc_sa3_scan[SA3_DPWRDWN]);
   1178 	splx(s);
   1179 	return true;
   1180 }
   1181 
   1182 int
   1183 ym_codec_power_ctl(void *arg, int flags)
   1184 {
   1185 	struct ym_softc *sc;
   1186 	struct ad1848_softc *ac;
   1187 	int parts;
   1188 
   1189 	sc = arg;
   1190 	ac = &sc->sc_ad1848.sc_ad1848;
   1191 	DPRINTF(("%s: ym_codec_power_ctl: flags = 0x%x\n", DVNAME(sc), flags));
   1192 
   1193 	if (flags != 0) {
   1194 		parts = 0;
   1195 		if (flags & FREAD) {
   1196 			parts |= YM_POWER_CODEC_R | YM_POWER_CODEC_AD;
   1197 			if (ac->mute[AD1848_MONITOR_CHANNEL] == 0)
   1198 				parts |= YM_POWER_CODEC_P | YM_POWER_CODEC_DA;
   1199 		}
   1200 		if (flags & FWRITE)
   1201 			parts |= YM_POWER_CODEC_P | YM_POWER_CODEC_DA;
   1202 	} else
   1203 		parts = YM_POWER_CODEC_P | YM_POWER_CODEC_R |
   1204 			YM_POWER_CODEC_DA | YM_POWER_CODEC_AD;
   1205 
   1206 	ym_power_ctl(sc, parts, flags);
   1207 
   1208 	return 0;
   1209 }
   1210 
   1211 /*
   1212  * Enter Power Save mode or Global Power Down mode.
   1213  * Total dissipation becomes 5mA and 10uA (typ.) respective.
   1214  *
   1215  * This must be called at splaudio().
   1216  */
   1217 static void
   1218 ym_chip_powerdown(struct ym_softc *sc)
   1219 {
   1220 	int i, xmax;
   1221 
   1222 	DPRINTF(("%s: ym_chip_powerdown\n", DVNAME(sc)));
   1223 
   1224 	xmax = YM_IS_SA3(sc) ? YM_SAVE_REG_MAX_SA3 : YM_SAVE_REG_MAX_SA2;
   1225 
   1226 	/* Save control registers. */
   1227 	for (i = SA3_PWR_MNG + 1; i <= xmax; i++) {
   1228 		if (i == SA3_SB_SCAN || i == SA3_SB_SCAN_DATA)
   1229 			continue;
   1230 		sc->sc_sa3_scan[i] = ym_read(sc, i);
   1231 	}
   1232 	ym_write(sc, SA3_PWR_MNG,
   1233 		 (sc->sc_pow_mode == YM_POWER_POWERDOWN ?
   1234 			SA3_PWR_MNG_PDN : SA3_PWR_MNG_PSV) | SA3_PWR_MNG_PDX);
   1235 }
   1236 
   1237 /*
   1238  * Power up from Power Save / Global Power Down Mode.
   1239  *
   1240  * We assume no ym interrupt shall occur, since the chip is
   1241  * in power-down mode (or should be blocked by splaudio()).
   1242  */
   1243 static void
   1244 ym_chip_powerup(struct ym_softc *sc, int nosleep)
   1245 {
   1246 	int wchan;
   1247 	uint8_t pw;
   1248 
   1249 	DPRINTF(("%s: ym_chip_powerup\n", DVNAME(sc)));
   1250 
   1251 	pw = ym_read(sc, SA3_PWR_MNG);
   1252 
   1253 	if ((pw & (SA3_PWR_MNG_PSV | SA3_PWR_MNG_PDN | SA3_PWR_MNG_PDX)) == 0)
   1254 		return;		/* already on */
   1255 
   1256 	pw &= ~SA3_PWR_MNG_PDX;
   1257 	ym_write(sc, SA3_PWR_MNG, pw);
   1258 
   1259 	/* wait 100 ms */
   1260 	if (nosleep)
   1261 		delay(100000);
   1262 	else
   1263 		tsleep(&wchan, PWAIT, "ym_pu1", hz / 10);
   1264 
   1265 	pw &= ~(SA3_PWR_MNG_PSV | SA3_PWR_MNG_PDN);
   1266 	ym_write(sc, SA3_PWR_MNG, pw);
   1267 
   1268 	/* wait 70 ms */
   1269 	if (nosleep)
   1270 		delay(70000);
   1271 	else
   1272 		tsleep(&wchan, PWAIT, "ym_pu2", hz / 14);
   1273 
   1274 	/* The chip is muted automatically --- unmute it now. */
   1275 	ym_mute(sc, SA3_VOL_L, sc->master_mute);
   1276 	ym_mute(sc, SA3_VOL_R, sc->master_mute);
   1277 }
   1278 
   1279 /* callout handler for power-down */
   1280 void
   1281 ym_powerdown_blocks(void *arg)
   1282 {
   1283 	struct ym_softc *sc;
   1284 	uint16_t parts;
   1285 	uint16_t on_blocks;
   1286 	uint8_t sv;
   1287 	int s;
   1288 
   1289 	sc = arg;
   1290 	on_blocks = sc->sc_on_blocks;
   1291 	DPRINTF(("%s: ym_powerdown_blocks: turning_off 0x%x\n",
   1292 		DVNAME(sc), sc->sc_turning_off));
   1293 
   1294 	s = splaudio();
   1295 
   1296 	on_blocks = sc->sc_on_blocks;
   1297 
   1298 	/* Be sure not to change the state of the chip.  Save it first. */
   1299 	sv =  bus_space_read_1(sc->sc_iot, sc->sc_controlioh, SA3_CTL_INDEX);
   1300 
   1301 	parts = sc->sc_turning_off;
   1302 
   1303 	if (on_blocks & ~parts & YM_POWER_CODEC_CTL)
   1304 		parts &= ~(YM_POWER_CODEC_P | YM_POWER_CODEC_R);
   1305 	if (parts & YM_POWER_CODEC_CTL) {
   1306 		if ((on_blocks & YM_POWER_CODEC_P) == 0)
   1307 			parts |= YM_POWER_CODEC_P;
   1308 		if ((on_blocks & YM_POWER_CODEC_R) == 0)
   1309 			parts |= YM_POWER_CODEC_R;
   1310 	}
   1311 	parts &= ~YM_POWER_CODEC_PSEUDO;
   1312 
   1313 	/* If CODEC is being off, save the state. */
   1314 	if ((sc->sc_on_blocks & YM_POWER_CODEC_DIGITAL) &&
   1315 	    (sc->sc_on_blocks & ~sc->sc_turning_off &
   1316 				YM_POWER_CODEC_DIGITAL) == 0)
   1317 		ym_save_codec_regs(sc);
   1318 
   1319 	if (YM_IS_SA3(sc)) {
   1320 		/* OPL3-SA3 */
   1321 		ym_write(sc, SA3_DPWRDWN,
   1322 		    ym_read(sc, SA3_DPWRDWN) | (u_int8_t) parts);
   1323 		ym_write(sc, SA3_APWRDWN,
   1324 		    ym_read(sc, SA3_APWRDWN) | (parts >> 8));
   1325 	} else {
   1326 		/* OPL3-SA2 (only OPL3 can be off partially) */
   1327 		if (parts & YM_POWER_OPL3)
   1328 			ym_write(sc, SA3_PWR_MNG,
   1329 			    ym_read(sc, SA3_PWR_MNG) | SA2_PWR_MNG_FMPS);
   1330 	}
   1331 
   1332 	if (((sc->sc_on_blocks &= ~sc->sc_turning_off) & YM_POWER_ACTIVE) == 0)
   1333 		ym_chip_powerdown(sc);
   1334 
   1335 	sc->sc_turning_off = 0;
   1336 
   1337 	/* Restore the state of the chip. */
   1338 	bus_space_write_1(sc->sc_iot, sc->sc_controlioh, SA3_CTL_INDEX, sv);
   1339 
   1340 	splx(s);
   1341 }
   1342 
   1343 /*
   1344  * Power control entry point.
   1345  */
   1346 void
   1347 ym_power_ctl(struct ym_softc *sc, int parts, int onoff)
   1348 {
   1349 	int s;
   1350 	int need_restore_codec;
   1351 
   1352 	DPRINTF(("%s: ym_power_ctl: parts = 0x%x, %s\n",
   1353 		DVNAME(sc), parts, onoff ? "on" : "off"));
   1354 
   1355 #ifdef DIAGNOSTIC
   1356 	if (curproc == NULL)
   1357 		panic("ym_power_ctl: no curproc");
   1358 #endif
   1359 	/* This function may sleep --- needs locking. */
   1360 	while (sc->sc_in_power_ctl & YM_POWER_CTL_INUSE) {
   1361 		sc->sc_in_power_ctl |= YM_POWER_CTL_WANTED;
   1362 		DPRINTF(("%s: ym_power_ctl: sleeping\n", DVNAME(sc)));
   1363 		tsleep(&sc->sc_in_power_ctl, PWAIT, "ym_pc", 0);
   1364 		DPRINTF(("%s: ym_power_ctl: awaken\n", DVNAME(sc)));
   1365 	}
   1366 	sc->sc_in_power_ctl |= YM_POWER_CTL_INUSE;
   1367 
   1368 	/* Defeat softclock interrupts. */
   1369 	s = splsoftclock();
   1370 
   1371 	/* If ON requested to parts which are scheduled to OFF, cancel it. */
   1372 	if (onoff && sc->sc_turning_off && (sc->sc_turning_off &= ~parts) == 0)
   1373 		callout_stop(&sc->sc_powerdown_ch);
   1374 
   1375 	if (!onoff && sc->sc_turning_off)
   1376 		parts &= ~sc->sc_turning_off;
   1377 
   1378 	/* Discard bits which are currently {on,off}. */
   1379 	parts &= onoff ? ~sc->sc_on_blocks : sc->sc_on_blocks;
   1380 
   1381 	/* Cancel previous timeout if needed. */
   1382 	if (parts != 0 && sc->sc_turning_off)
   1383 		callout_stop(&sc->sc_powerdown_ch);
   1384 
   1385 	(void) splx(s);
   1386 
   1387 	if (parts == 0)
   1388 		goto unlock;		/* no work to do */
   1389 
   1390 	if (onoff) {
   1391 		/* Turning on is done immediately. */
   1392 
   1393 		/* If the chip is off, turn it on. */
   1394 		if ((sc->sc_on_blocks & YM_POWER_ACTIVE) == 0)
   1395 			ym_chip_powerup(sc, 0);
   1396 
   1397 		need_restore_codec = (parts & YM_POWER_CODEC_DIGITAL) &&
   1398 		    (sc->sc_on_blocks & YM_POWER_CODEC_DIGITAL) == 0;
   1399 
   1400 		sc->sc_on_blocks |= parts;
   1401 		if (parts & YM_POWER_CODEC_CTL)
   1402 			parts |= YM_POWER_CODEC_P | YM_POWER_CODEC_R;
   1403 
   1404 		s = splaudio();
   1405 
   1406 		if (YM_IS_SA3(sc)) {
   1407 			/* OPL3-SA3 */
   1408 			ym_write(sc, SA3_DPWRDWN,
   1409 			    ym_read(sc, SA3_DPWRDWN) & (u_int8_t)~parts);
   1410 			ym_write(sc, SA3_APWRDWN,
   1411 			    ym_read(sc, SA3_APWRDWN) & ~(parts >> 8));
   1412 		} else {
   1413 			/* OPL3-SA2 (only OPL3 can be off partially) */
   1414 			if (parts & YM_POWER_OPL3)
   1415 				ym_write(sc, SA3_PWR_MNG,
   1416 				    ym_read(sc, SA3_PWR_MNG)
   1417 					& ~SA2_PWR_MNG_FMPS);
   1418 		}
   1419 		if (need_restore_codec)
   1420 			ym_restore_codec_regs(sc);
   1421 
   1422 		(void) splx(s);
   1423 	} else {
   1424 		/* Turning off is delayed. */
   1425 		sc->sc_turning_off |= parts;
   1426 	}
   1427 
   1428 	/* Schedule turning off. */
   1429 	if (sc->sc_pow_mode != YM_POWER_NOSAVE && sc->sc_turning_off)
   1430 		callout_reset(&sc->sc_powerdown_ch, hz * sc->sc_pow_timeout,
   1431 		    ym_powerdown_blocks, sc);
   1432 
   1433 unlock:
   1434 	if (sc->sc_in_power_ctl & YM_POWER_CTL_WANTED)
   1435 		wakeup(&sc->sc_in_power_ctl);
   1436 	sc->sc_in_power_ctl = 0;
   1437 }
   1438 #endif /* not AUDIO_NO_POWER_CTL */
   1439