xref: /netbsd/sys/dev/ic/interwave.c (revision bf9ec67e)
1 /*	$NetBSD: interwave.c,v 1.15 2002/02/06 14:50:42 pooka Exp $	*/
2 
3 /*
4  * Copyright (c) 1997, 1999 The NetBSD Foundation, Inc.
5  * All rights reserved.
6  *
7  * Author: Kari Mettinen
8  *
9  * Redistribution and use in source and binary forms, with or without
10  * modification, are permitted provided that the following conditions
11  * are met:
12  * 1. Redistributions of source code must retain the above copyright
13  *    notice, this list of conditions and the following disclaimer.
14  * 2. Redistributions in binary form must reproduce the above copyright
15  *    notice, this list of conditions and the following disclaimer in the
16  *    documentation and/or other materials provided with the distribution.
17  * 3. All advertising materials mentioning features or use of this software
18  *    must display the following acknowledgement:
19  *        This product includes software developed by the NetBSD
20  *        Foundation, Inc. and its contributors.
21  * 4. Neither the name of The NetBSD Foundation nor the names of its
22  *    contributors may be used to endorse or promote products derived
23  *    from this software without specific prior written permission.
24  *
25  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
26  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
27  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
28  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
29  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
30  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
31  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
32  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
33  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
34  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
35  * POSSIBILITY OF SUCH DAMAGE.
36  */
37 
38 #include <sys/cdefs.h>
39 __KERNEL_RCSID(0, "$NetBSD: interwave.c,v 1.15 2002/02/06 14:50:42 pooka Exp $");
40 
41 #include <sys/param.h>
42 #include <sys/systm.h>
43 #include <sys/errno.h>
44 #include <sys/ioctl.h>
45 #include <sys/syslog.h>
46 #include <sys/device.h>
47 #include <sys/proc.h>
48 #include <sys/buf.h>
49 #include <sys/fcntl.h>
50 #include <sys/malloc.h>
51 #include <sys/kernel.h>
52 
53 #include <machine/cpu.h>
54 #include <machine/intr.h>
55 #include <machine/pio.h>
56 #include <sys/audioio.h>
57 #include <dev/audio_if.h>
58 #include <dev/mulaw.h>
59 
60 #include <dev/isa/isavar.h>
61 #include <dev/isa/isadmavar.h>
62 
63 #include <dev/ic/interwavereg.h>
64 #include <dev/ic/interwavevar.h>
65 
66 
67 static void iwreset __P((struct iw_softc *, int));
68 
69 static int iw_set_speed __P((struct iw_softc *, u_long, char));
70 static u_long iw_set_format __P((struct iw_softc *, u_long, int));
71 static void iw_mixer_line_level __P((struct iw_softc *, int, int, int));
72 static void iw_trigger_dma __P((struct iw_softc *, u_char));
73 static void iw_stop_dma __P((struct iw_softc *, u_char, u_char));
74 static void iw_dma_count __P((struct iw_softc *, u_short, int));
75 static int iwintr __P((void *));
76 static void iw_meminit __P((struct iw_softc *));
77 static void iw_mempoke __P((struct iw_softc *, u_long, u_char));
78 static u_char iw_mempeek __P((struct iw_softc *, u_long));
79 
80 #ifdef USE_WAVETABLE
81 static void iw_set_voice_place __P((struct iw_softc *, u_char, u_long));
82 static void iw_voice_pan __P((struct iw_softc *, u_char, u_short, u_short));
83 static void iw_voice_freq __P((struct iw_softc *, u_char, u_long));
84 static void iw_set_loopmode __P((struct iw_softc *, u_char, u_char, u_char));
85 static void iw_set_voice_pos __P((struct iw_softc *, u_short, u_long, u_long));
86 static void iw_start_voice __P((struct iw_softc *, u_char));
87 static void iw_play_voice __P((struct iw_softc *, u_long, u_long, u_short));
88 static void iw_stop_voice __P((struct iw_softc *, u_char));
89 static void iw_move_voice_end __P((struct iw_softc *, u_short, u_long));
90 static void iw_initvoices __P((struct iw_softc *));
91 #endif
92 
93 struct audio_device iw_device = {
94 	"Am78C201",
95 	"0.1",
96 	"guspnp"
97 };
98 
99 #ifdef AUDIO_DEBUG
100 int iw_debug;
101 #define DPRINTF(p)       if (iw_debug) printf p
102 #else
103 #define DPRINTF(p)
104 #endif
105 
106 static int      iw_cc = 1;
107 #ifdef DIAGNOSTIC
108 static int      outputs = 0;
109 static int      iw_ints = 0;
110 static int      inputs = 0;
111 static int      iw_inints = 0;
112 #endif
113 
114 int
115 iwintr(arg)
116 	void	*arg;
117 {
118 	struct	iw_softc *sc = arg;
119 	int	val = 0;
120 	u_char	intrs = 0;
121 
122 	IW_READ_DIRECT_1(6, sc->p2xr_h, intrs);	/* UISR */
123 
124 	/* codec ints */
125 
126 	/*
127 	 * The proper order to do this seems to be to read CSR3 to get the
128 	 * int cause and fifo over underrrun status, then deal with the ints
129 	 * (new dma set up), and to clear ints by writing the respective bit
130 	 * to 0.
131 	 */
132 
133 	/* read what ints happened */
134 
135 	IW_READ_CODEC_1(CSR3I, intrs);
136 
137 	/* clear them */
138 
139 	IW_WRITE_DIRECT_1(2, sc->codec_index_h, 0x00);
140 
141 	/* and process them */
142 
143 	if (intrs & 0x20) {
144 #ifdef DIAGNOSTIC
145 		iw_inints++;
146 #endif
147 		sc->sc_reclocked = 0;
148 		if (sc->sc_recintr != 0)
149 			sc->sc_recintr(sc->sc_recarg);
150 		val = 1;
151 	}
152 	if (intrs & 0x10) {
153 #ifdef DIAGNOSTIC
154 		iw_ints++;
155 #endif
156 		sc->sc_playlocked = 0;
157 		if (sc->sc_playintr != 0)
158 			sc->sc_playintr(sc->sc_playarg);
159 		val = 1;
160 	}
161 	return val;
162 
163 }
164 
165 void
166 iwattach(sc)
167 	struct	iw_softc *sc;
168 {
169 	int	got_irq = 0;
170 
171 	DPRINTF(("iwattach sc %p\n", sc));
172 
173 	sc->cdatap = 1;		/* relative offsets in region */
174 	sc->csr1r = 2;
175 	sc->cxdr = 3;		/* CPDR or CRDR */
176 
177 	sc->gmxr = 0;		/* sc->p3xr */
178 	sc->gmxdr = 1;		/* GMTDR or GMRDR */
179 	sc->svsr = 2;
180 	sc->igidxr = 3;
181 	sc->i16dp = 4;
182 	sc->i8dp = 5;
183 	sc->lmbdr = 7;
184 
185 	sc->rec_precision = sc->play_precision = 8;
186 	sc->rec_channels = sc->play_channels = 1;
187 	sc->rec_encoding = sc->play_encoding = AUDIO_ENCODING_ULAW;
188 	sc->sc_irate = 8000;
189 	sc->sc_orate = 8000;
190 
191 	sc->sc_fullduplex = 1;
192 
193 	sc->sc_reclocked = 0;
194 	sc->sc_playlocked = 0;
195 
196 	sc->sc_dma_flags = 0;
197 
198 	/*
199 	 * We can only use a few selected irqs, see if we got one from pnp
200 	 * code that suits us.
201 	 */
202 
203 	if (sc->sc_irq > 0) {
204 		sc->sc_ih = isa_intr_establish(sc->sc_p2xr_ic,
205 					       sc->sc_irq,
206 					   IST_EDGE, IPL_AUDIO, iwintr, sc);
207 		got_irq = 1;
208 	}
209 	if (!got_irq) {
210 		printf("\niwattach: couldn't get a suitable irq\n");
211 		return;
212 	}
213 	printf("\n");
214 	iwreset(sc, 0);
215 	iw_set_format(sc, AUDIO_ENCODING_ULAW, 0);
216 	iw_set_format(sc, AUDIO_ENCODING_ULAW, 1);
217 	printf("%s: interwave version %s\n",
218 		sc->sc_dev.dv_xname, iw_device.version);
219 	audio_attach_mi(sc->iw_hw_if, sc, &sc->sc_dev);
220  }
221 
222 int
223 iwopen(sc, flags)
224 	struct	iw_softc *sc;
225 	int	flags;
226 {
227 	int	s;
228 
229 	s = splaudio();
230 	if (sc->sc_open) {
231 		splx(s);
232 		DPRINTF(("iwopen: open %x sc %p\n", sc->sc_open, sc));
233 		return EBUSY;
234 	} else
235 		sc->sc_open = 1;
236 	splx(s);
237 
238 	DPRINTF(("iwopen: open %x sc %p\n", sc->sc_open, sc));
239 
240 #ifdef DIAGNOSTIC
241 	outputs = 0;
242 	iw_ints = 0;
243 	inputs = 0;
244 	iw_inints = 0;
245 #endif
246 
247 	iwreset(sc, 1);
248 
249 	/* READ/WRITE or both */
250 
251 	if (flags == FREAD) {
252 		sc->sc_mode |= IW_READ;
253 		sc->sc_reclocked = 0;
254 	}
255 	if (flags == FWRITE) {
256 		sc->sc_mode |= IW_WRITE;
257 		sc->sc_playlocked = 0;
258 	}
259 	sc->sc_playdma_cnt = 0;
260 	sc->sc_recdma_cnt = 0;
261 	sc->playfirst = 1;
262 	sc->sc_playintr = 0;
263 	sc->sc_recintr = 0;
264 
265 	return 0;
266 }
267 
268 
269 
270 void
271 iwclose(addr)
272 	void	*addr;
273 {
274 	struct	iw_softc *sc = addr;
275 
276 	DPRINTF(("iwclose sc %p\n", sc));
277 
278 #ifdef DIAGNOSTIC
279 	DPRINTF(("iwclose: outputs %d ints %d inputs %d in_ints %d\n",
280 		outputs, iw_ints, inputs, iw_inints));
281 #endif
282 
283 	/* close hardware */
284 	sc->sc_open = 0;
285 	sc->sc_flags = 0;
286 	sc->sc_mode = 0;
287 	sc->sc_playlocked = 0;
288 	sc->sc_reclocked = 0;
289 
290 	iw_stop_dma(sc, IW_DMA_PLAYBACK, 1);
291 	iw_stop_dma(sc, IW_DMA_RECORD, 1);
292 
293 	sc->sc_playdma_cnt = 0;
294 	sc->sc_recdma_cnt = 0;
295 }
296 
297 #define RAM_STEP          64*1024
298 
299 static void
300 iw_mempoke(sc, addy, val)
301 	struct	iw_softc *sc;
302 	u_long	addy;
303 	u_char	val;
304 {
305 	IW_WRITE_GENERAL_2(LMALI, (u_short) addy);
306 	IW_WRITE_GENERAL_1(LMAHI, (u_char) (addy >> 16));
307 
308 	/* Write byte to LMBDR */
309 	IW_WRITE_DIRECT_1(sc->p3xr + 7, sc->p3xr_h, val);
310 }
311 
312 static u_char
313 iw_mempeek(sc, addy)
314 	struct	iw_softc *sc;
315 	u_long	addy;
316 {
317 	u_char	ret;
318 
319 	IW_WRITE_GENERAL_2(LMALI, (u_short) addy);
320 	IW_WRITE_GENERAL_1(LMAHI, (u_char) (addy >> 16));
321 
322 	IW_READ_DIRECT_1(sc->p3xr + 7, sc->p3xr_h, ret);
323 	return ret;		/* return byte from LMBDR */
324 }
325 
326 static void
327 iw_meminit(sc)
328 	struct iw_softc *sc;
329 {
330 	u_long          bank[4] = {0L, 0L, 0L, 0L};
331 	u_long          addr = 0L, base = 0L, cnt = 0L;
332 	u_char          i, ram = 0 /* ,memval=0 */ ;
333 	u_short         lmcfi;
334 	u_long          temppi;
335 	u_long         *lpbanks = &temppi;
336 
337 	IW_WRITE_GENERAL_1(LDMACI, 0x00);
338 
339 	IW_READ_GENERAL_2(LMCFI, lmcfi);	/* 0x52 */
340 	lmcfi |= 0x0A0C;
341 	IW_WRITE_GENERAL_2(LMCFI, lmcfi);	/* max addr span */
342 	IW_WRITE_GENERAL_1(LMCI, 0x00);
343 
344 	/* fifo addresses */
345 
346 	IW_WRITE_GENERAL_2(LMRFAI, ((4 * 1024 * 1024) >> 8));
347 	IW_WRITE_GENERAL_2(LMPFAI, ((4 * 1024 * 1024 + 16 * 1024) >> 8));
348 
349 	IW_WRITE_GENERAL_2(LMFSI, 0x000);
350 
351 	IW_WRITE_GENERAL_2(LDICI, 0x0000);
352 
353 	while (addr < (16 * 1024 * 1024)) {
354 		iw_mempoke(sc, addr, 0x00);
355 		addr += RAM_STEP;
356 	}
357 
358 	printf("%s:", sc->sc_dev.dv_xname);
359 
360 	for (i = 0; i < 4; i++) {
361 		iw_mempoke(sc, base, 0xAA);	/* mark start of bank */
362 		iw_mempoke(sc, base + 1L, 0x55);
363 		if (iw_mempeek(sc, base) == 0xAA  &&
364 		    iw_mempeek(sc, base + 1L) == 0x55)
365 			ram = 1;
366 		if (ram) {
367 			while (cnt < (4 * 1024 * 1024)) {
368 				bank[i] += RAM_STEP;
369 				cnt += RAM_STEP;
370 				addr = base + cnt;
371 				if (iw_mempeek(sc, addr) == 0xAA)
372 					break;
373 			}
374 		}
375 		if (lpbanks != NULL) {
376 			*lpbanks = bank[i];
377 			lpbanks++;
378 		}
379 		bank[i] = bank[i] >> 10;
380 		printf("%s bank[%d]: %ldK", i ? "," : "", i, bank[i]);
381 		base += 4 * 1024 * 1024;
382 		cnt = 0L;
383 		ram = 0;
384 	}
385 
386 	printf("\n");
387 
388 	/*
389 	 * this is not really useful since GUS PnP supports memory
390 	 * configurations that aren't really supported by Interwave...beware
391 	 * of holes! Also, we don't use the memory for anything in this
392 	 * version of the driver.
393 	 *
394 	 * we've configured for 4M-4M-4M-4M
395 	 */
396 }
397 
398 
399 static
400 void
401 iwreset(sc, warm)
402 	struct iw_softc *sc;
403 	int             warm;
404 {
405 	u_char          reg, cmode, val = 0, mixer_image = 0;
406 
407 	reg = 0;		/* XXX gcc -Wall */
408 
409 	cmode = 0x6c;		/* enhanced codec mode (full duplex) */
410 
411 	/* reset */
412 
413 	IW_WRITE_GENERAL_1(URSTI, 0x00);
414 	delay(10);
415 	IW_WRITE_GENERAL_1(URSTI, 0x07);
416 	IW_WRITE_GENERAL_1(ICMPTI, 0x1f);	/* disable DSP and uici and
417 						 * udci writes */
418 	IW_WRITE_GENERAL_1(IDECI, 0x7f);	/* enable ints to ISA and
419 						 * codec access */
420 	IW_READ_GENERAL_1(IVERI, reg);
421 	IW_WRITE_GENERAL_1(IVERI, reg | 0x01);	/* hidden reg lock disable */
422 	IW_WRITE_GENERAL_1(UASBCI, 0x00);
423 
424 	/* synth enhanced mode (default), 0 active voices, disable ints */
425 
426 	IW_WRITE_GENERAL_1(SGMI_WR, 0x01);	/* enhanced mode, LFOs
427 						 * disabled */
428 	for (val = 0; val < 32; val++) {
429 		/* set each synth sound volume to 0 */
430 		IW_WRITE_DIRECT_1(sc->p3xr + 2, sc->p3xr_h, val);
431 		IW_WRITE_GENERAL_1(SVSI_WR, 0x00);
432 		IW_WRITE_GENERAL_2(SASLI_WR, 0x0000);
433 		IW_WRITE_GENERAL_2(SASHI_WR, 0x0000);
434 		IW_WRITE_GENERAL_2(SAELI_WR, 0x0000);
435 		IW_WRITE_GENERAL_2(SAEHI_WR, 0x0000);
436 		IW_WRITE_GENERAL_2(SFCI_WR, 0x0000);
437 		IW_WRITE_GENERAL_1(SACI_WR, 0x02);
438 		IW_WRITE_GENERAL_1(SVSI_WR, 0x00);
439 		IW_WRITE_GENERAL_1(SVEI_WR, 0x00);
440 		IW_WRITE_GENERAL_2(SVLI_WR, 0x0000);
441 		IW_WRITE_GENERAL_1(SVCI_WR, 0x02);
442 		IW_WRITE_GENERAL_1(SMSI_WR, 0x02);
443 	}
444 
445 	IW_WRITE_GENERAL_1(SAVI_WR, 0x00);
446 
447 	/* codec mode/init */
448 
449 	/* first change mode to 1 */
450 
451 	IW_WRITE_CODEC_1(CMODEI, 0x00);
452 
453 	/* and mode 3 */
454 
455 	IW_WRITE_CODEC_1(CMODEI, cmode);
456 
457 	IW_READ_CODEC_1(CMODEI, reg);
458 
459 	DPRINTF(("cmode %x\n", reg));
460 
461 	sc->revision = ((reg & 0x80) >> 3) | (reg & 0x0f);
462 
463 	IW_WRITE_DIRECT_1(sc->codec_index + 2, sc->p2xr_h, 0x00);
464 
465 	IW_WRITE_CODEC_1(CFIG1I | IW_MCE, 0x00);	/* dma 2 chan access */
466 	IW_WRITE_CODEC_1(CEXTI, 0x00);	/* disable ints for now */
467 
468 
469 	IW_WRITE_CODEC_1(CLPCTI, 0x00);	/* reset playback sample counters */
470 	IW_WRITE_CODEC_1(CUPCTI, 0x00);	/* always upper byte last */
471 	IW_WRITE_CODEC_1(CFIG2I, 0x80);	/* full voltage range, enable record
472 					 * and playback sample counters, and
473 					 * don't center output in case or
474 					 * FIFO underrun */
475 	IW_WRITE_CODEC_1(CFIG3I, 0xc0);	/* enable record/playback irq (still
476 					 * turned off from CEXTI), max dma
477 					 * rate */
478 	IW_WRITE_CODEC_1(CSR3I, 0x00);	/* clear status 3 reg */
479 
480 
481 	IW_WRITE_CODEC_1(CLRCTI, 0x00);	/* reset record sample counters */
482 	IW_WRITE_CODEC_1(CURCTI, 0x00);	/* always upper byte last */
483 
484 
485 	IW_READ_GENERAL_1(IVERI, reg);
486 
487 	sc->vers = reg >> 4;
488 	if (!warm)
489 		sprintf(iw_device.version, "%d.%d", sc->vers, sc->revision);
490 
491 	IW_WRITE_GENERAL_1(IDECI, 0x7f);	/* irqs and codec decode
492 						 * enable */
493 
494 
495 	/* ports */
496 
497 	if (!warm) {
498 		iw_mixer_line_level(sc, IW_LINE_OUT, 255, 255);
499 		iw_mixer_line_level(sc, IW_LINE_IN, 0, 0);
500 		iw_mixer_line_level(sc, IW_AUX1, 0, 0);
501 		iw_mixer_line_level(sc, IW_AUX2, 200, 200); /* CD */
502 		sc->sc_dac.off = 0;
503 		iw_mixer_line_level(sc, IW_DAC, 200, 200);
504 
505 		iw_mixer_line_level(sc, IW_MIC_IN, 0, 0);
506 		iw_mixer_line_level(sc, IW_REC, 0, 0);
507 		iw_mixer_line_level(sc, IW_LOOPBACK, 0, 0);
508 		iw_mixer_line_level(sc, IW_MONO_IN, 0, 0);
509 
510 		/* mem stuff */
511 		iw_meminit(sc);
512 
513 	}
514 	IW_WRITE_CODEC_1(CEXTI, 0x02);	/* codec int enable */
515 
516 	/* clear _LDMACI */
517 
518 	IW_WRITE_GENERAL_1(LDMACI, 0x00);
519 
520 	/* enable mixer paths */
521 	mixer_image = 0x0c;
522 	IW_WRITE_DIRECT_1(sc->p2xr, sc->p2xr_h, mixer_image);
523 	/*
524 	 * enable output, line in. disable mic in bit 0 = 0 -> line in on
525 	 * (from codec?) bit 1 = 0 -> output on bit 2 = 1 -> mic in on bit 3
526 	 * = 1 -> irq&drq pin enable bit 4 = 1 -> channel interrupts to chan
527 	 * 1 bit 5 = 1 -> enable midi loop back bit 6 = 0 -> irq latches
528 	 * URCR[2:0] bit 6 = 1 -> dma latches URCR[2:0]
529 	 */
530 
531 
532 	IW_READ_DIRECT_1(sc->p2xr, sc->p2xr_h, mixer_image);
533 #ifdef AUDIO_DEBUG
534 	if (!warm)
535 		DPRINTF(("mix image %x \n", mixer_image));
536 #endif
537 }
538 
539 struct iw_codec_freq {
540 	u_long	freq;
541 	u_char	bits;
542 };
543 
544 int
545 iw_set_speed(sc, freq, in)
546 	struct	iw_softc *sc;
547 	u_long	freq;
548 	char	in;
549 {
550 	u_char	var, cfig3, reg;
551 
552 	static struct iw_codec_freq iw_cf[17] = {
553 #define FREQ_1 24576000
554 #define FREQ_2 16934400
555 #define XTAL1 0
556 #define XTAL2 1
557 		{5510, 0x00 | XTAL2}, {6620, 0x0E | XTAL2},
558 		{8000, 0x00 | XTAL1}, {9600, 0x0E | XTAL1},
559 		{11025, 0x02 | XTAL2}, {16000, 0x02 | XTAL1},
560 		{18900, 0x04 | XTAL2}, {22050, 0x06 | XTAL2},
561 		{27420, 0x04 | XTAL1}, {32000, 0x06 | XTAL1},
562 		{33075, 0x0C | XTAL2}, {37800, 0x08 | XTAL2},
563 		{38400, 0x0A | XTAL1}, {44100, 0x0A | XTAL2},
564 		{44800, 0x08 | XTAL1}, {48000, 0x0C | XTAL1},
565 		{48000, 0x0C | XTAL1}	/* really a dummy for indexing later */
566 #undef XTAL1
567 #undef XTAL2
568 	};
569 
570 	cfig3 = 0;		/* XXX gcc -Wall */
571 
572 	/*
573 	 * if the frequency is between 3493Hz and 32KHz we can use a more
574 	 * accurate frequency than the ones listed above base on the formula
575 	 * FREQ/((16*(48+x))) where FREQ is either FREQ_1 (24576000Hz) or
576 	 * FREQ_2 (16934400Hz) and x is the value to be written to either
577 	 * CPVFI or CRVFI. To enable this option, bit 2 in CFIG3 needs to be
578 	 * set high
579 	 *
580 	 * NOT IMPLEMENTED!
581 	 *
582 	 * Note that if you have a 'bad' XTAL_1 (higher than 18.5 MHz), 44.8KHz
583 	 * and 38.4KHz modes will provide wrong frequencies to output.
584 	 */
585 
586 
587 	if (freq > 48000)
588 		freq = 48000;
589 	if (freq < 5510)
590 		freq = 5510;
591 
592 	/* reset CFIG3[2] */
593 
594 	IW_READ_CODEC_1(CFIG3I, cfig3);
595 
596 	cfig3 |= 0xc0;		/* not full fifo treshhold */
597 
598 	DPRINTF(("cfig3i = %x -> ", cfig3));
599 
600 	cfig3 &= ~0x04;
601 	IW_WRITE_CODEC_1(CFIG3I, cfig3);
602 	IW_READ_CODEC_1(CFIG3I, cfig3);
603 
604 	DPRINTF(("%x\n", cfig3));
605 
606 	for (var = 0; var < 16; var++)	/* select closest frequency */
607 		if (freq <= iw_cf[var].freq)
608 			break;
609 	if (var != 16)
610 		if (abs(freq - iw_cf[var].freq) > abs(iw_cf[var + 1].freq - freq))
611 			var++;
612 
613 	if (in)
614 		IW_WRITE_CODEC_1(CRDFI | IW_MCE, sc->recfmtbits | iw_cf[var].bits);
615 	else
616 		IW_WRITE_CODEC_1(CPDFI | IW_MCE, sc->playfmtbits | iw_cf[var].bits);
617 	freq = iw_cf[var].freq;
618 	DPRINTF(("setting %s frequency to %d bits %x \n",
619 	       in ? "in" : "out", (int) freq, iw_cf[var].bits));
620 
621 	IW_READ_CODEC_1(CPDFI, reg);
622 
623 	DPRINTF((" CPDFI %x ", reg));
624 
625 	IW_READ_CODEC_1(CRDFI, reg);
626 
627 	DPRINTF((" CRDFI %x ", reg));
628 
629 	return freq;
630 }
631 
632 /* Encoding. */
633 int
634 iw_query_encoding(addr, fp)
635 	void	*addr;
636 	struct	audio_encoding *fp;
637 {
638 	/*
639 	 * LINEAR, ALAW, ULAW, ADPCM in HW, we'll use linear unsigned
640 	 * hardware mode for all 8-bit modes due to buggy (?) codec.
641 	 */
642 
643 	/*
644 	 * except in wavetable synth. there we have only ulaw and 8 and 16
645 	 * bit linear data
646 	 */
647 
648 	switch (fp->index) {
649 	case 0:
650 		strcpy(fp->name, AudioEulinear);
651 		fp->encoding = AUDIO_ENCODING_ULINEAR_LE;
652 		fp->precision = 8;
653 		fp->flags = 0;
654 		break;
655 	case 1:
656 		strcpy(fp->name, AudioEmulaw);
657 		fp->encoding = AUDIO_ENCODING_ULAW;
658 		fp->precision = 8;
659 		fp->flags = AUDIO_ENCODINGFLAG_EMULATED;
660 		break;
661 	case 2:
662 		strcpy(fp->name, AudioEalaw);
663 		fp->encoding = AUDIO_ENCODING_ALAW;
664 		fp->precision = 8;
665 		fp->flags = AUDIO_ENCODINGFLAG_EMULATED;
666 		break;
667 	case 3:
668 		strcpy(fp->name, AudioEadpcm);
669 		fp->encoding = AUDIO_ENCODING_ADPCM;
670 		fp->precision = 8;	/* really 4 bit */
671 		fp->flags = 0;
672 		break;
673 	case 4:
674 		strcpy(fp->name, AudioEslinear_le);
675 		fp->encoding = AUDIO_ENCODING_SLINEAR_LE;
676 		fp->precision = 16;
677 		fp->flags = 0;
678 		break;
679 	case 5:
680 		strcpy(fp->name, AudioEslinear_be);
681 		fp->encoding = AUDIO_ENCODING_SLINEAR_BE;
682 		fp->precision = 16;
683 		fp->flags = 0;
684 		break;
685 	default:
686 		return (EINVAL);
687 		/* NOTREACHED */
688 	}
689 	return (0);
690 }
691 
692 
693 
694 u_long
695 iw_set_format(sc, precision, in)
696 	struct	iw_softc *sc;
697 	u_long	precision;
698 	int	in;
699 {
700 	u_char	data;
701 	int	encoding, channels;
702 
703 	encoding = in ? sc->rec_encoding : sc->play_encoding;
704 	channels = in ? sc->rec_channels : sc->play_channels;
705 
706 	DPRINTF(("iw_set_format\n"));
707 
708 	switch (encoding) {
709 	case AUDIO_ENCODING_ULAW:
710 		data = 0x00;
711 		break;
712 
713 	case AUDIO_ENCODING_ALAW:
714 		data = 0x00;
715 		break;
716 
717 	case AUDIO_ENCODING_SLINEAR_LE:
718 		if (precision == 16)
719 			data = 0x40;	/* little endian. 0xc0 is big endian */
720 		else
721 			data = 0x00;
722 		break;
723 
724 	case AUDIO_ENCODING_SLINEAR_BE:
725 		if (precision == 16)
726 			data = 0xc0;
727 		else
728 			data = 0x00;
729 		break;
730 
731 	case AUDIO_ENCODING_ADPCM:
732 		data = 0xa0;
733 		break;
734 
735 	default:
736 		return -1;
737 	}
738 
739 	if (channels == 2)
740 		data |= 0x10;	/* stereo */
741 
742 	if (in) {
743 		/* in */
744 		sc->recfmtbits = data;
745 		/* This will zero the normal codec frequency,
746 		 * iw_set_speed should always be called afterwards.
747 		 */
748 		IW_WRITE_CODEC_1(CRDFI | IW_MCE, data);
749 	} else {
750 		/* out */
751 		sc->playfmtbits = data;
752 		IW_WRITE_CODEC_1(CPDFI | IW_MCE, data);
753 	}
754 
755 	DPRINTF(("formatbits %s %x", in ? "in" : "out", data));
756 
757 	return encoding;
758 }
759 
760 
761 
762 int
763 iw_set_params(addr, setmode, usemode, p, q)
764 	void	*addr;
765 	int	setmode;
766 	int	usemode;
767 	struct	audio_params *p;
768 	struct	audio_params *q;
769 {
770 	struct	iw_softc *sc = addr;
771 	void	(*swcode)__P((void *, u_char * buf, int cnt)) = NULL;
772 	int	factor = 1;
773 	DPRINTF(("iw_setparams: code %d, prec %d, rate %d, chan %d\n",
774 		(int) p->encoding, (int) p->precision, (int) p->sample_rate,
775 		(int) p->channels));
776 
777 
778 	switch (p->encoding) {
779 	case AUDIO_ENCODING_ULAW:
780 		if (p->precision != 8)
781 			return EINVAL;
782 		swcode = setmode & AUMODE_PLAY ? mulaw_to_ulinear8 : ulinear8_to_mulaw;
783 		factor = 1;
784 		break;
785 	case AUDIO_ENCODING_ALAW:
786 		if (p->precision != 8)
787 			return EINVAL;
788 		swcode = setmode & AUMODE_PLAY ? alaw_to_ulinear8 : ulinear8_to_alaw;
789 		factor = 1;
790 		break;
791 	case AUDIO_ENCODING_ADPCM:
792 		if (p->precision != 8)
793 			return EINVAL;
794 		else
795 			break;
796 
797 	case AUDIO_ENCODING_SLINEAR_LE:
798 	case AUDIO_ENCODING_SLINEAR_BE:
799 		if (p->precision != 8 && p->precision != 16)
800 			return EINVAL;
801 		else
802 			break;
803 
804 	default:
805 		return EINVAL;
806 
807 	}
808 
809 	if (setmode & AUMODE_PLAY) {
810 		sc->play_channels = p->channels;
811 	        sc->play_encoding = p->encoding;
812 		sc->play_precision = p->precision;
813 		p->factor = factor;
814 		p->sw_code = swcode;
815 		iw_set_format(sc, p->precision, 0);
816 		q->sample_rate = p->sample_rate = sc->sc_orate =
817 			iw_set_speed(sc, p->sample_rate, 0);
818 	} else {
819 #if 0
820 		q->channels = sc->rec_channels = p->channels;
821 		q->encoding = sc->rec_encoding = p->encoding;
822 		q->precision = sc->rec_precision = p->precision;
823 #endif
824 		sc->rec_channels = q->channels;
825 		sc->rec_encoding = q->encoding;
826 		sc->rec_precision = q->precision;
827 		q->factor = factor;
828 		q->sw_code = swcode;
829 
830 		iw_set_format(sc, p->precision, 1);
831 		q->sample_rate = sc->sc_irate =
832 			iw_set_speed(sc, q->sample_rate, 1);
833 	}
834 	return 0;
835 }
836 
837 
838 int
839 iw_round_blocksize(addr, blk)
840 	void	*addr;
841 	int	blk;
842 {
843 	/* Round to a multiple of the biggest sample size. */
844 	return blk &= -4;
845 }
846 
847 void
848 iw_mixer_line_level(sc, line, levl, levr)
849 	struct	iw_softc *sc;
850 	int	line;
851 	int	levl, levr;
852 {
853 	u_char	gainl, gainr, attenl, attenr;
854 
855 	switch (line) {
856 	case IW_REC:
857 		gainl = sc->sc_recsrcbits | (levl >> 4);
858 		gainr = sc->sc_recsrcbits | (levr >> 4);
859 		DPRINTF(("recording with %x", gainl));
860 		IW_WRITE_CODEC_1(CLICI, gainl);
861 		IW_WRITE_CODEC_1(CRICI, gainr);
862 		sc->sc_rec.voll = levl & 0xf0;
863 		sc->sc_rec.volr = levr & 0xf0;
864 		break;
865 
866 	case IW_AUX1:
867 
868 		gainl = (255 - levl) >> 3;
869 		gainr = (255 - levr) >> 3;
870 
871 		/* mute if 0 level */
872 		if (levl == 0)
873 			gainl |= 0x80;
874 		if (levr == 0)
875 			gainr |= 0x80;
876 
877 		IW_WRITE_CODEC_1(IW_LEFT_AUX1_PORT, gainl);
878 		IW_WRITE_CODEC_1(IW_RIGHT_AUX1_PORT, gainr);
879 		sc->sc_aux1.voll = levl & 0xf8;
880 		sc->sc_aux1.volr = levr & 0xf8;
881 
882 		break;
883 
884 	case IW_AUX2:
885 
886 		gainl = (255 - levl) >> 3;
887 		gainr = (255 - levr) >> 3;
888 
889 		/* mute if 0 level */
890 		if (levl == 0)
891 			gainl |= 0x80;
892 		if (levr == 0)
893 			gainr |= 0x80;
894 
895 		IW_WRITE_CODEC_1(IW_LEFT_AUX2_PORT, gainl);
896 		IW_WRITE_CODEC_1(IW_RIGHT_AUX2_PORT, gainr);
897 		sc->sc_aux2.voll = levl & 0xf8;
898 		sc->sc_aux2.volr = levr & 0xf8;
899 		break;
900 	case IW_DAC:
901 		attenl = ((255 - levl) >> 2) | ((levl && !sc->sc_dac.off) ? 0 : 0x80);
902 		attenr = ((255 - levr) >> 2) | ((levr && !sc->sc_dac.off) ? 0 : 0x80);
903 		IW_WRITE_CODEC_1(CLDACI, attenl);
904 		IW_WRITE_CODEC_1(CRDACI, attenr);
905 		sc->sc_dac.voll = levl & 0xfc;
906 		sc->sc_dac.volr = levr & 0xfc;
907 		break;
908 	case IW_LOOPBACK:
909 		attenl = ((255 - levl) & 0xfc) | (levl ? 0x01 : 0);
910 		IW_WRITE_CODEC_1(CLCI, attenl);
911 		sc->sc_loopback.voll = levl & 0xfc;
912 		break;
913 	case IW_LINE_IN:
914 		gainl = (levl >> 3) | (levl ? 0 : 0x80);
915 		gainr = (levr >> 3) | (levr ? 0 : 0x80);
916 		IW_WRITE_CODEC_1(CLLICI, gainl);
917 		IW_WRITE_CODEC_1(CRLICI, gainr);
918 		sc->sc_linein.voll = levl & 0xf8;
919 		sc->sc_linein.volr = levr & 0xf8;
920 		break;
921 	case IW_MIC_IN:
922 		gainl = ((255 - levl) >> 3) | (levl ? 0 : 0x80);
923 		gainr = ((255 - levr) >> 3) | (levr ? 0 : 0x80);
924 		IW_WRITE_CODEC_1(CLMICI, gainl);
925 		IW_WRITE_CODEC_1(CRMICI, gainr);
926 		sc->sc_mic.voll = levl & 0xf8;
927 		sc->sc_mic.volr = levr & 0xf8;
928 		break;
929 	case IW_LINE_OUT:
930 		attenl = ((255 - levl) >> 3) | (levl ? 0 : 0x80);
931 		attenr = ((255 - levr) >> 3) | (levr ? 0 : 0x80);
932 		IW_WRITE_CODEC_1(CLOAI, attenl);
933 		IW_WRITE_CODEC_1(CROAI, attenr);
934 		sc->sc_lineout.voll = levl & 0xf8;
935 		sc->sc_lineout.volr = levr & 0xf8;
936 		break;
937 	case IW_MONO_IN:
938 		attenl = ((255 - levl) >> 4) | (levl ? 0 : 0xc0);	/* in/out mute */
939 		IW_WRITE_CODEC_1(CMONOI, attenl);
940 		sc->sc_monoin.voll = levl & 0xf0;
941 		break;
942 	}
943 }
944 
945 int
946 iw_commit_settings(addr)
947 	void	*addr;
948 {
949 	return 0;
950 }
951 
952 
953 void
954 iw_trigger_dma(sc, io)
955 	struct	iw_softc *sc;
956 	u_char	io;
957 {
958 	u_char	reg;
959 	int	s;
960 
961 	s = splaudio();
962 
963 	IW_READ_CODEC_1(CSR3I, reg);
964 	IW_WRITE_CODEC_1(CSR3I, reg & ~(io == IW_DMA_PLAYBACK ? 0x10 : 0x20));
965 
966 	IW_READ_CODEC_1(CFIG1I, reg);
967 
968 	IW_WRITE_CODEC_1(CFIG1I, reg | io);
969 
970 	/* let the counter run */
971 	IW_READ_CODEC_1(CFIG2I, reg);
972 	IW_WRITE_CODEC_1(CFIG2I, reg & ~(io << 4));
973 
974 	splx(s);
975 }
976 
977 void
978 iw_stop_dma(sc, io, hard)
979 	struct	iw_softc *sc;
980 	u_char	io, hard;
981 {
982 	u_char	reg;
983 
984 	/* just stop the counter, no need to flush the fifo */
985 	IW_READ_CODEC_1(CFIG2I, reg);
986 	IW_WRITE_CODEC_1(CFIG2I, (reg | (io << 4)));
987 
988 	if (hard) {
989 		/* unless we're closing the device */
990 		IW_READ_CODEC_1(CFIG1I, reg);
991 		IW_WRITE_CODEC_1(CFIG1I, reg & ~io);
992 	}
993 }
994 
995 void
996 iw_dma_count(sc, count, io)
997 	struct	iw_softc *sc;
998 	u_short	count;
999 	int	io;
1000 {
1001 	if (io == IW_DMA_PLAYBACK) {
1002 		IW_WRITE_CODEC_1(CLPCTI, (u_char) (count & 0x00ff));
1003 		IW_WRITE_CODEC_1(CUPCTI, (u_char) ((count >> 8) & 0x00ff));
1004 	} else {
1005 		IW_WRITE_CODEC_1(CLRCTI, (u_char) (count & 0x00ff));
1006 		IW_WRITE_CODEC_1(CURCTI, (u_char) ((count >> 8) & 0x00ff));
1007 	}
1008 }
1009 
1010 int
1011 iw_init_output(addr, buf, cc)
1012 	void	*addr;
1013 	void	*buf;
1014 	int	cc;
1015 {
1016 	struct iw_softc *sc = (struct iw_softc *) addr;
1017 
1018 	DPRINTF(("iw_init_output\n"));
1019 
1020 	isa_dmastart(sc->sc_ic, sc->sc_playdrq, buf,
1021 		     cc, NULL, DMAMODE_WRITE | DMAMODE_LOOP, BUS_DMA_NOWAIT);
1022 	return 0;
1023 }
1024 
1025 int
1026 iw_init_input(addr, buf, cc)
1027 	void	*addr;
1028 	void	*buf;
1029 	int	cc;
1030 {
1031 	struct	iw_softc *sc = (struct iw_softc *) addr;
1032 
1033 	DPRINTF(("iw_init_input\n"));
1034 
1035 	isa_dmastart(sc->sc_ic, sc->sc_recdrq, buf,
1036 		     cc, NULL, DMAMODE_READ | DMAMODE_LOOP, BUS_DMA_NOWAIT);
1037 	return 0;
1038 }
1039 
1040 
1041 int
1042 iw_start_output(addr, p, cc, intr, arg)
1043 	void	*addr;
1044 	void	*p;
1045 	int	cc;
1046 	void	(*intr)__P((void *));
1047 	void	*arg;
1048 {
1049 	struct	iw_softc *sc = addr;
1050 	int	counter;
1051 
1052 #ifdef AUDIO_DEBUG
1053 	if (sc->sc_playlocked) {
1054 		DPRINTF(("iw_start_output: playback dma already going on\n"));
1055 		/* return 0; */
1056 	}
1057 #endif
1058 
1059 	sc->sc_playlocked = 1;
1060 #ifdef DIAGNOSTIC
1061 	if (!intr) {
1062 		printf("iw_start_output: no callback!\n");
1063 		return 1;
1064 	}
1065 #endif
1066 
1067 	sc->sc_playintr = intr;
1068 	sc->sc_playarg = arg;
1069 	sc->sc_dma_flags |= DMAMODE_WRITE;
1070 	sc->sc_playdma_bp = p;
1071 
1072 	counter = 0;
1073 
1074 	isa_dmastart(sc->sc_ic, sc->sc_playdrq, sc->sc_playdma_bp,
1075 		     cc, NULL, DMAMODE_WRITE, BUS_DMA_NOWAIT);
1076 
1077 
1078 	if (sc->play_encoding == AUDIO_ENCODING_ADPCM)
1079 		cc >>= 2;
1080 	if (sc->play_precision == 16)
1081 		cc >>= 1;
1082 
1083 	if (sc->play_channels == 2 && sc->play_encoding != AUDIO_ENCODING_ADPCM)
1084 		cc >>= 1;
1085 
1086 	cc -= iw_cc;
1087 
1088 
1089 	/* iw_dma_access(sc,1); */
1090 	if (cc != sc->sc_playdma_cnt) {
1091 		iw_dma_count(sc, (u_short) cc, IW_DMA_PLAYBACK);
1092 		sc->sc_playdma_cnt = cc;
1093 
1094 		iw_trigger_dma(sc, IW_DMA_PLAYBACK);
1095 	}
1096 
1097 #ifdef DIAGNOSTIC
1098 	if (outputs != iw_ints)
1099 		printf("iw_start_output: out %d, int %d\n", outputs, iw_ints);
1100 	outputs++;
1101 #endif
1102 	return 0;
1103 }
1104 
1105 
1106 int
1107 iw_start_input(addr, p, cc, intr, arg)
1108 	void	*addr;
1109 	void	*p;
1110 	int	cc;
1111 	void	(*intr)__P((void *));
1112 	void	*arg;
1113 {
1114 	struct	iw_softc *sc = addr;
1115 	int	counter;
1116 
1117 #if AUDIO_DEBUG
1118 	if (sc->sc_reclocked) {
1119 		DPRINTF(("iw_start_input: record dma already going on\n"));
1120 		/* return 0; */
1121 	}
1122 #endif
1123 
1124 	sc->sc_reclocked = 1;
1125 #ifdef DIAGNOSTIC
1126 	if (!intr) {
1127 		printf("iw_start_input: no callback!\n");
1128 		return 1;
1129 	}
1130 #endif
1131 
1132 
1133 	sc->sc_recintr = intr;
1134 	sc->sc_recarg = arg;
1135 	sc->sc_dma_flags |= DMAMODE_READ;
1136 	sc->sc_recdma_bp = p;
1137 
1138 	counter = 0;
1139 
1140 	isa_dmastart(sc->sc_ic, sc->sc_recdrq, sc->sc_recdma_bp,
1141 		     cc, NULL, DMAMODE_READ, BUS_DMA_NOWAIT);
1142 
1143 
1144 	if (sc->rec_encoding == AUDIO_ENCODING_ADPCM)
1145 		cc >>= 2;
1146 	if (sc->rec_precision == 16)
1147 		cc >>= 1;
1148 
1149 	if (sc->rec_channels == 2 && sc->rec_encoding != AUDIO_ENCODING_ADPCM)
1150 		cc >>= 1;
1151 
1152 	cc -= iw_cc;
1153 
1154 	/* iw_dma_access(sc,0); */
1155 	if (sc->sc_recdma_cnt != cc) {
1156 		iw_dma_count(sc, (u_short) cc, IW_DMA_RECORD);
1157 		sc->sc_recdma_cnt = cc;
1158 		/* iw_dma_ctrl(sc, IW_DMA_RECORD); */
1159 		iw_trigger_dma(sc, IW_DMA_RECORD);
1160 	}
1161 
1162 #ifdef DIAGNOSTIC
1163 	if ((inputs != iw_inints))
1164 		printf("iw_start_input: in %d, inints %d\n", inputs, iw_inints);
1165 	inputs++;
1166 #endif
1167 
1168 	return 0;
1169 }
1170 
1171 
1172 int
1173 iw_halt_output(addr)
1174 	void	*addr;
1175 {
1176 	struct	iw_softc *sc = addr;
1177 	iw_stop_dma(sc, IW_DMA_PLAYBACK, 0);
1178 	/* sc->sc_playlocked = 0; */
1179 	return 0;
1180 }
1181 
1182 
1183 int
1184 iw_halt_input(addr)
1185 	void	*addr;
1186 {
1187 	struct	iw_softc *sc = addr;
1188 	iw_stop_dma(sc, IW_DMA_RECORD, 0);
1189 	/* sc->sc_reclocked = 0; */
1190 	return 0;
1191 }
1192 
1193 
1194 int
1195 iw_speaker_ctl(addr, newstate)
1196 	void	*addr;
1197 	int	newstate;
1198 {
1199 	struct	iw_softc *sc = addr;
1200 	u_char          reg;
1201 	if (newstate == SPKR_ON) {
1202 		sc->sc_dac.off = 0;
1203 		IW_READ_CODEC_1(CLDACI, reg);
1204 		IW_WRITE_CODEC_1(CLDACI, reg & 0x7f);
1205 		IW_READ_CODEC_1(CRDACI, reg);
1206 		IW_WRITE_CODEC_1(CRDACI, reg & 0x7f);
1207 	} else {
1208 		/* SPKR_OFF */
1209 		sc->sc_dac.off = 1;
1210 		IW_READ_CODEC_1(CLDACI, reg);
1211 		IW_WRITE_CODEC_1(CLDACI, reg | 0x80);
1212 		IW_READ_CODEC_1(CRDACI, reg);
1213 		IW_WRITE_CODEC_1(CRDACI, reg | 0x80);
1214 	}
1215 	return 0;
1216 }
1217 
1218 
1219 int
1220 iw_getdev(addr, retp)
1221 	void	*addr;
1222 	struct	audio_device *retp;
1223 {
1224 	*retp = iw_device;
1225 	return 0;
1226 }
1227 
1228 
1229 int
1230 iw_setfd(addr, flag)
1231 	void	*addr;
1232 	int	flag;
1233 {
1234 	return 0;
1235 }
1236 
1237 
1238 /* Mixer (in/out ports) */
1239 int
1240 iw_set_port(addr, cp)
1241 	void	*addr;
1242 	mixer_ctrl_t *cp;
1243 {
1244 	struct	iw_softc *sc = addr;
1245 	u_char	vall = 0, valr = 0;
1246 	int	error = EINVAL;
1247 
1248 	switch (cp->dev) {
1249 	case IW_MIC_IN_LVL:
1250 		if (cp->type == AUDIO_MIXER_VALUE) {
1251 			error = 0;
1252 			if (cp->un.value.num_channels == 1) {
1253 				vall = valr = cp->un.value.level[0];
1254 			} else {
1255 				vall = cp->un.value.level[0];
1256 				valr = cp->un.value.level[1];
1257 			}
1258 			sc->sc_mic.voll = vall;
1259 			sc->sc_mic.volr = valr;
1260 			iw_mixer_line_level(sc, IW_MIC_IN, vall, valr);
1261 		}
1262 		break;
1263 	case IW_AUX1_LVL:
1264 		if (cp->type == AUDIO_MIXER_VALUE) {
1265 			error = 0;
1266 			if (cp->un.value.num_channels == 1) {
1267 				vall = valr = cp->un.value.level[0];
1268 			} else {
1269 				vall = cp->un.value.level[0];
1270 				valr = cp->un.value.level[1];
1271 			}
1272 			sc->sc_aux1.voll = vall;
1273 			sc->sc_aux1.volr = valr;
1274 			iw_mixer_line_level(sc, IW_AUX1, vall, valr);
1275 		}
1276 		break;
1277 	case IW_AUX2_LVL:
1278 		if (cp->type == AUDIO_MIXER_VALUE) {
1279 			error = 0;
1280 			if (cp->un.value.num_channels == 1) {
1281 				vall = valr = cp->un.value.level[0];
1282 			} else {
1283 				vall = cp->un.value.level[0];
1284 				valr = cp->un.value.level[1];
1285 			}
1286 			sc->sc_aux2.voll = vall;
1287 			sc->sc_aux2.volr = valr;
1288 			iw_mixer_line_level(sc, IW_AUX2, vall, valr);
1289 		}
1290 		break;
1291 	case IW_LINE_IN_LVL:
1292 		if (cp->type == AUDIO_MIXER_VALUE) {
1293 			error = 0;
1294 			if (cp->un.value.num_channels == 1) {
1295 				vall = valr = cp->un.value.level[0];
1296 			} else {
1297 				vall = cp->un.value.level[0];
1298 				valr = cp->un.value.level[1];
1299 			}
1300 			sc->sc_linein.voll = vall;
1301 			sc->sc_linein.volr = valr;
1302 			iw_mixer_line_level(sc, IW_LINE_IN, vall, valr);
1303 		}
1304 		break;
1305 	case IW_LINE_OUT_LVL:
1306 		if (cp->type == AUDIO_MIXER_VALUE) {
1307 			error = 0;
1308 			if (cp->un.value.num_channels == 1) {
1309 				vall = valr = cp->un.value.level[0];
1310 			} else {
1311 				vall = cp->un.value.level[0];
1312 				valr = cp->un.value.level[1];
1313 			}
1314 			sc->sc_lineout.voll = vall;
1315 			sc->sc_lineout.volr = valr;
1316 			iw_mixer_line_level(sc, IW_LINE_OUT, vall, valr);
1317 		}
1318 		break;
1319 	case IW_REC_LVL:
1320 		if (cp->type == AUDIO_MIXER_VALUE) {
1321 			error = 0;
1322 			if (cp->un.value.num_channels == 1) {
1323 				vall = valr = cp->un.value.level[0];
1324 			} else {
1325 				vall = cp->un.value.level[0];
1326 				valr = cp->un.value.level[1];
1327 			}
1328 			sc->sc_rec.voll = vall;
1329 			sc->sc_rec.volr = valr;
1330 			iw_mixer_line_level(sc, IW_REC, vall, valr);
1331 		}
1332 		break;
1333 
1334 	case IW_DAC_LVL:
1335 		if (cp->type == AUDIO_MIXER_VALUE) {
1336 			error = 0;
1337 			if (cp->un.value.num_channels == 1) {
1338 				vall = valr = cp->un.value.level[0];
1339 			} else {
1340 				vall = cp->un.value.level[0];
1341 				valr = cp->un.value.level[1];
1342 			}
1343 			sc->sc_dac.voll = vall;
1344 			sc->sc_dac.volr = valr;
1345 			iw_mixer_line_level(sc, IW_DAC, vall, valr);
1346 		}
1347 		break;
1348 
1349 	case IW_LOOPBACK_LVL:
1350 		if (cp->type == AUDIO_MIXER_VALUE) {
1351 			error = 0;
1352 			if (cp->un.value.num_channels != 1) {
1353 				return EINVAL;
1354 			} else {
1355 				valr = vall = cp->un.value.level[0];
1356 			}
1357 			sc->sc_loopback.voll = vall;
1358 			sc->sc_loopback.volr = valr;
1359 			iw_mixer_line_level(sc, IW_LOOPBACK, vall, valr);
1360 		}
1361 		break;
1362 
1363 	case IW_MONO_IN_LVL:
1364 		if (cp->type == AUDIO_MIXER_VALUE) {
1365 			error = 0;
1366 			if (cp->un.value.num_channels != 1) {
1367 				return EINVAL;
1368 			} else {
1369 				valr = vall = cp->un.value.level[0];
1370 			}
1371 			sc->sc_monoin.voll = vall;
1372 			sc->sc_monoin.volr = valr;
1373 			iw_mixer_line_level(sc, IW_MONO_IN, vall, valr);
1374 		}
1375 		break;
1376 	case IW_RECORD_SOURCE:
1377 		error = 0;
1378 		sc->sc_recsrcbits = cp->un.ord << 6;
1379 		DPRINTF(("record source %d bits %x\n", cp->un.ord, sc->sc_recsrcbits));
1380 		iw_mixer_line_level(sc, IW_REC, sc->sc_rec.voll, sc->sc_rec.volr);
1381 		break;
1382 	}
1383 
1384 	return error;
1385 }
1386 
1387 
1388 int
1389 iw_get_port(addr, cp)
1390 	void	*addr;
1391 	mixer_ctrl_t *cp;
1392 {
1393 	struct	iw_softc *sc = addr;
1394 
1395 	int	error = EINVAL;
1396 
1397 	switch (cp->dev) {
1398 	case IW_MIC_IN_LVL:
1399 		if (cp->type == AUDIO_MIXER_VALUE) {
1400 			cp->un.value.num_channels = 2;
1401 			cp->un.value.level[0] = sc->sc_mic.voll;
1402 			cp->un.value.level[1] = sc->sc_mic.volr;
1403 			error = 0;
1404 		}
1405 		break;
1406 	case IW_AUX1_LVL:
1407 		if (cp->type == AUDIO_MIXER_VALUE) {
1408 			cp->un.value.num_channels = 2;
1409 			cp->un.value.level[0] = sc->sc_aux1.voll;
1410 			cp->un.value.level[1] = sc->sc_aux1.volr;
1411 			error = 0;
1412 		}
1413 		break;
1414 	case IW_AUX2_LVL:
1415 		if (cp->type == AUDIO_MIXER_VALUE) {
1416 			cp->un.value.num_channels = 2;
1417 			cp->un.value.level[0] = sc->sc_aux2.voll;
1418 			cp->un.value.level[1] = sc->sc_aux2.volr;
1419 			error = 0;
1420 		}
1421 		break;
1422 	case IW_LINE_OUT_LVL:
1423 		if (cp->type == AUDIO_MIXER_VALUE) {
1424 			cp->un.value.num_channels = 2;
1425 			cp->un.value.level[0] = sc->sc_lineout.voll;
1426 			cp->un.value.level[1] = sc->sc_lineout.volr;
1427 			error = 0;
1428 		}
1429 		break;
1430 	case IW_LINE_IN_LVL:
1431 		if (cp->type == AUDIO_MIXER_VALUE) {
1432 			cp->un.value.num_channels = 2;
1433 			cp->un.value.level[0] = sc->sc_linein.voll;
1434 			cp->un.value.level[1] = sc->sc_linein.volr;
1435 			error = 0;
1436 		}
1437 	case IW_REC_LVL:
1438 		if (cp->type == AUDIO_MIXER_VALUE) {
1439 			cp->un.value.num_channels = 2;
1440 			cp->un.value.level[0] = sc->sc_rec.voll;
1441 			cp->un.value.level[1] = sc->sc_rec.volr;
1442 			error = 0;
1443 		}
1444 		break;
1445 
1446 	case IW_DAC_LVL:
1447 		if (cp->type == AUDIO_MIXER_VALUE) {
1448 			cp->un.value.num_channels = 2;
1449 			cp->un.value.level[0] = sc->sc_dac.voll;
1450 			cp->un.value.level[1] = sc->sc_dac.volr;
1451 			error = 0;
1452 		}
1453 		break;
1454 
1455 	case IW_LOOPBACK_LVL:
1456 		if (cp->type == AUDIO_MIXER_VALUE) {
1457 			cp->un.value.num_channels = 1;
1458 			cp->un.value.level[0] = sc->sc_loopback.voll;
1459 			error = 0;
1460 		}
1461 		break;
1462 
1463 	case IW_MONO_IN_LVL:
1464 		if (cp->type == AUDIO_MIXER_VALUE) {
1465 			cp->un.value.num_channels = 1;
1466 			cp->un.value.level[0] = sc->sc_monoin.voll;
1467 			error = 0;
1468 		}
1469 		break;
1470 	case IW_RECORD_SOURCE:
1471 		cp->un.ord = sc->sc_recsrcbits >> 6;
1472 		error = 0;
1473 		break;
1474 	}
1475 
1476 	return error;
1477 }
1478 
1479 
1480 
1481 int
1482 iw_query_devinfo(addr, dip)
1483 	void	*addr;
1484 	mixer_devinfo_t *dip;
1485 {
1486 
1487 	switch (dip->index) {
1488 	case IW_MIC_IN_LVL:	/* Microphone */
1489 		dip->type = AUDIO_MIXER_VALUE;
1490 		dip->mixer_class = IW_INPUT_CLASS;
1491 		dip->prev = AUDIO_MIXER_LAST;
1492 		dip->next = AUDIO_MIXER_LAST;
1493 		strcpy(dip->label.name, AudioNmicrophone);
1494 		dip->un.v.num_channels = 2;
1495 		strcpy(dip->un.v.units.name, AudioNvolume);
1496 		break;
1497 	case IW_AUX1_LVL:
1498 		dip->type = AUDIO_MIXER_VALUE;
1499 		dip->mixer_class = IW_INPUT_CLASS;
1500 		dip->prev = AUDIO_MIXER_LAST;
1501 		dip->next = AUDIO_MIXER_LAST;
1502 		strcpy(dip->label.name, AudioNline);
1503 		dip->un.v.num_channels = 2;
1504 		strcpy(dip->un.v.units.name, AudioNvolume);
1505 		break;
1506 	case IW_AUX2_LVL:
1507 		dip->type = AUDIO_MIXER_VALUE;
1508 		dip->mixer_class = IW_INPUT_CLASS;
1509 		dip->prev = AUDIO_MIXER_LAST;
1510 		dip->next = AUDIO_MIXER_LAST;
1511 		strcpy(dip->label.name, AudioNcd);
1512 		dip->un.v.num_channels = 2;
1513 		strcpy(dip->un.v.units.name, AudioNvolume);
1514 		break;
1515 	case IW_LINE_OUT_LVL:
1516 		dip->type = AUDIO_MIXER_VALUE;
1517 		dip->mixer_class = IW_OUTPUT_CLASS;
1518 		dip->prev = AUDIO_MIXER_LAST;
1519 		dip->next = AUDIO_MIXER_LAST;
1520 		strcpy(dip->label.name, AudioNline);
1521 		dip->un.v.num_channels = 2;
1522 		strcpy(dip->un.v.units.name, AudioNvolume);
1523 		break;
1524 	case IW_DAC_LVL:
1525 		dip->type = AUDIO_MIXER_VALUE;
1526 		dip->mixer_class = IW_OUTPUT_CLASS;
1527 		dip->prev = AUDIO_MIXER_LAST;
1528 		dip->next = AUDIO_MIXER_LAST;
1529 		strcpy(dip->label.name, AudioNdac);
1530 		dip->un.v.num_channels = 2;
1531 		strcpy(dip->un.v.units.name, AudioNvolume);
1532 		break;
1533 	case IW_LINE_IN_LVL:
1534 		dip->type = AUDIO_MIXER_VALUE;
1535 		dip->mixer_class = IW_INPUT_CLASS;
1536 		dip->prev = AUDIO_MIXER_LAST;
1537 		dip->next = AUDIO_MIXER_LAST;
1538 		strcpy(dip->label.name, AudioNinput);
1539 		dip->un.v.num_channels = 2;
1540 		strcpy(dip->un.v.units.name, AudioNvolume);
1541 		break;
1542 	case IW_MONO_IN_LVL:
1543 		dip->type = AUDIO_MIXER_VALUE;
1544 		dip->mixer_class = IW_INPUT_CLASS;
1545 		dip->prev = AUDIO_MIXER_LAST;
1546 		dip->next = AUDIO_MIXER_LAST;
1547 		strcpy(dip->label.name, AudioNmono);
1548 		dip->un.v.num_channels = 1;
1549 		strcpy(dip->un.v.units.name, AudioNvolume);
1550 		break;
1551 
1552 	case IW_REC_LVL:	/* record level */
1553 		dip->type = AUDIO_MIXER_VALUE;
1554 		dip->mixer_class = IW_RECORD_CLASS;
1555 		dip->prev = AUDIO_MIXER_LAST;
1556 		dip->next = AUDIO_MIXER_LAST;
1557 		strcpy(dip->label.name, AudioNrecord);
1558 		dip->un.v.num_channels = 2;
1559 		strcpy(dip->un.v.units.name, AudioNvolume);
1560 		break;
1561 
1562 	case IW_LOOPBACK_LVL:
1563 		dip->type = AUDIO_MIXER_VALUE;
1564 		dip->mixer_class = IW_RECORD_CLASS;
1565 		dip->prev = AUDIO_MIXER_LAST;
1566 		dip->next = AUDIO_MIXER_LAST;
1567 		strcpy(dip->label.name, "filter");
1568 		dip->un.v.num_channels = 1;
1569 		strcpy(dip->un.v.units.name, AudioNvolume);
1570 		break;
1571 
1572 	case IW_RECORD_SOURCE:
1573 		dip->mixer_class = IW_RECORD_CLASS;
1574 		dip->type = AUDIO_MIXER_ENUM;
1575 		dip->prev = AUDIO_MIXER_LAST;
1576 		dip->next = AUDIO_MIXER_LAST;
1577 		strcpy(dip->label.name, AudioNsource);
1578 		dip->un.e.num_mem = 4;
1579 		strcpy(dip->un.e.member[0].label.name, AudioNline);
1580 		dip->un.e.member[0].ord = IW_LINE_IN_SRC;
1581 		strcpy(dip->un.e.member[1].label.name, "aux1");
1582 		dip->un.e.member[1].ord = IW_AUX1_SRC;
1583 		strcpy(dip->un.e.member[2].label.name, AudioNmicrophone);
1584 		dip->un.e.member[2].ord = IW_MIC_IN_SRC;
1585 		strcpy(dip->un.e.member[3].label.name, AudioNmixerout);
1586 		dip->un.e.member[3].ord = IW_MIX_OUT_SRC;
1587 		break;
1588 	case IW_INPUT_CLASS:
1589 		dip->type = AUDIO_MIXER_CLASS;
1590 		dip->mixer_class = IW_INPUT_CLASS;
1591 		dip->next = dip->prev = AUDIO_MIXER_LAST;
1592 		strcpy(dip->label.name, AudioCinputs);
1593 		break;
1594 	case IW_OUTPUT_CLASS:
1595 		dip->type = AUDIO_MIXER_CLASS;
1596 		dip->mixer_class = IW_OUTPUT_CLASS;
1597 		dip->next = dip->prev = AUDIO_MIXER_LAST;
1598 		strcpy(dip->label.name, AudioCoutputs);
1599 		break;
1600 	case IW_RECORD_CLASS:	/* record source class */
1601 		dip->type = AUDIO_MIXER_CLASS;
1602 		dip->mixer_class = IW_RECORD_CLASS;
1603 		dip->next = dip->prev = AUDIO_MIXER_LAST;
1604 		strcpy(dip->label.name, AudioCrecord);
1605 		return 0;
1606 	default:
1607 		return ENXIO;
1608 	}
1609 	return 0;
1610 }
1611 
1612 
1613 void *
1614 iw_malloc(addr, direction, size, pool, flags)
1615 	void	*addr;
1616 	int	direction;
1617 	size_t	size;
1618 	int	pool, flags;
1619 {
1620 	struct iw_softc *sc = addr;
1621 	int drq;
1622 
1623 	if (direction == AUMODE_PLAY)
1624 		drq = sc->sc_playdrq;
1625 	else
1626 		drq = sc->sc_recdrq;
1627 	return (isa_malloc(sc->sc_ic, drq, size, pool, flags));
1628 }
1629 
1630 void
1631 iw_free(addr, ptr, pool)
1632 	void	*addr;
1633 	void	*ptr;
1634 	int	pool;
1635 {
1636 	isa_free(ptr, pool);
1637 }
1638 
1639 size_t
1640 iw_round_buffersize(addr, direction, size)
1641 	void	*addr;
1642 	int	direction;
1643 	size_t	size;
1644 {
1645 	struct iw_softc *sc = addr;
1646 	bus_size_t maxsize;
1647 
1648 	if (direction == AUMODE_PLAY)
1649 		maxsize = sc->sc_play_maxsize;
1650 	else
1651 		maxsize = sc->sc_rec_maxsize;
1652 
1653 	if (size > maxsize)
1654 		size = maxsize;
1655 	return (size);
1656 }
1657 
1658 paddr_t
1659 iw_mappage(addr, mem, off, prot)
1660 	void	*addr;
1661 	void	*mem;
1662 	off_t	off;
1663 	int	prot;
1664 {
1665 	return isa_mappage(mem, off, prot);
1666 }
1667 
1668 int
1669 iw_get_props(addr)
1670 	void	*addr;
1671 {
1672 	struct iw_softc *sc = addr;
1673 	return AUDIO_PROP_MMAP |
1674 		(sc->sc_fullduplex ? AUDIO_PROP_FULLDUPLEX : 0);
1675 }
1676