xref: /netbsd-src/sys/dev/ic/interwave.c (revision 4472dbe5e3bd91ef2540bada7a7ca7384627ff9b)
1 /*	$NetBSD: interwave.c,v 1.12 2000/02/07 22:07:30 thorpej 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/param.h>
39 #include <sys/systm.h>
40 #include <sys/errno.h>
41 #include <sys/ioctl.h>
42 #include <sys/syslog.h>
43 #include <sys/device.h>
44 #include <sys/proc.h>
45 #include <sys/buf.h>
46 #include <sys/fcntl.h>
47 #include <sys/malloc.h>
48 #include <sys/kernel.h>
49 
50 #include <machine/cpu.h>
51 #include <machine/intr.h>
52 #include <machine/pio.h>
53 #include <machine/cpufunc.h>
54 #include <sys/audioio.h>
55 #include <dev/audio_if.h>
56 #include <dev/mulaw.h>
57 
58 #include <dev/isa/isavar.h>
59 #include <dev/isa/isadmavar.h>
60 
61 #include <dev/ic/interwavereg.h>
62 #include <dev/ic/interwavevar.h>
63 
64 
65 static void iwreset __P((struct iw_softc *, int));
66 
67 static int iw_set_speed __P((struct iw_softc *, u_long, char));
68 static u_long iw_set_format __P((struct iw_softc *, u_long, int));
69 static void iw_mixer_line_level __P((struct iw_softc *, int, int, int));
70 static void iw_trigger_dma __P((struct iw_softc *, u_char));
71 static void iw_stop_dma __P((struct iw_softc *, u_char, u_char));
72 static void iw_dma_count __P((struct iw_softc *, u_short, int));
73 static int iwintr __P((void *));
74 static void iw_meminit __P((struct iw_softc *));
75 static void iw_mempoke __P((struct iw_softc *, u_long, u_char));
76 static u_char iw_mempeek __P((struct iw_softc *, u_long));
77 
78 #ifdef USE_WAVETABLE
79 static void iw_set_voice_place __P((struct iw_softc *, u_char, u_long));
80 static void iw_voice_pan __P((struct iw_softc *, u_char, u_short, u_short));
81 static void iw_voice_freq __P((struct iw_softc *, u_char, u_long));
82 static void iw_set_loopmode __P((struct iw_softc *, u_char, u_char, u_char));
83 static void iw_set_voice_pos __P((struct iw_softc *, u_short, u_long, u_long));
84 static void iw_start_voice __P((struct iw_softc *, u_char));
85 static void iw_play_voice __P((struct iw_softc *, u_long, u_long, u_short));
86 static void iw_stop_voice __P((struct iw_softc *, u_char));
87 static void iw_move_voice_end __P((struct iw_softc *, u_short, u_long));
88 static void iw_initvoices __P((struct iw_softc *));
89 #endif
90 
91 struct audio_device iw_device = {
92 	"Am78C201",
93 	"0.1",
94 	"guspnp"
95 };
96 
97 #ifdef AUDIO_DEBUG
98 int iw_debug;
99 #define DPRINTF(p)       if (iw_debug) printf p
100 #else
101 #define DPRINTF(p)
102 #endif
103 
104 static int      iw_cc = 1;
105 #ifdef DIAGNOSTIC
106 static int      outputs = 0;
107 static int      iw_ints = 0;
108 static int      inputs = 0;
109 static int      iw_inints = 0;
110 #endif
111 
112 int
113 iwintr(arg)
114 	void	*arg;
115 {
116 	struct	iw_softc *sc = arg;
117 	int	val = 0;
118 	u_char	intrs = 0;
119 
120 	IW_READ_DIRECT_1(6, sc->p2xr_h, intrs);	/* UISR */
121 
122 	/* codec ints */
123 
124 	/*
125 	 * The proper order to do this seems to be to read CSR3 to get the
126 	 * int cause and fifo over underrrun status, then deal with the ints
127 	 * (new dma set up), and to clear ints by writing the respective bit
128 	 * to 0.
129 	 */
130 
131 	/* read what ints happened */
132 
133 	IW_READ_CODEC_1(CSR3I, intrs);
134 
135 	/* clear them */
136 
137 	IW_WRITE_DIRECT_1(2, sc->codec_index_h, 0x00);
138 
139 	/* and process them */
140 
141 	if (intrs & 0x20) {
142 #ifdef DIAGNOSTIC
143 		iw_inints++;
144 #endif
145 		sc->sc_reclocked = 0;
146 		if (sc->sc_recintr != 0)
147 			sc->sc_recintr(sc->sc_recarg);
148 		val = 1;
149 	}
150 	if (intrs & 0x10) {
151 #ifdef DIAGNOSTIC
152 		iw_ints++;
153 #endif
154 		sc->sc_playlocked = 0;
155 		if (sc->sc_playintr != 0)
156 			sc->sc_playintr(sc->sc_playarg);
157 		val = 1;
158 	}
159 	return val;
160 
161 }
162 
163 void
164 iwattach(sc)
165 	struct	iw_softc *sc;
166 {
167 	int	got_irq = 0;
168 
169 	DPRINTF(("iwattach sc %p\n", sc));
170 
171 	sc->cdatap = 1;		/* relative offsets in region */
172 	sc->csr1r = 2;
173 	sc->cxdr = 3;		/* CPDR or CRDR */
174 
175 	sc->gmxr = 0;		/* sc->p3xr */
176 	sc->gmxdr = 1;		/* GMTDR or GMRDR */
177 	sc->svsr = 2;
178 	sc->igidxr = 3;
179 	sc->i16dp = 4;
180 	sc->i8dp = 5;
181 	sc->lmbdr = 7;
182 
183 	sc->rec_precision = sc->play_precision = 8;
184 	sc->rec_channels = sc->play_channels = 1;
185 	sc->rec_encoding = sc->play_encoding = AUDIO_ENCODING_ULAW;
186 	sc->sc_irate = 8000;
187 	sc->sc_orate = 8000;
188 
189 	sc->sc_fullduplex = 1;
190 
191 	sc->sc_reclocked = 0;
192 	sc->sc_playlocked = 0;
193 
194 	sc->sc_dma_flags = 0;
195 
196 	/*
197 	 * We can only use a few selected irqs, see if we got one from pnp
198 	 * code that suits us.
199 	 */
200 
201 	if (sc->sc_irq > 0) {
202 		sc->sc_ih = isa_intr_establish(sc->sc_p2xr_ic,
203 					       sc->sc_irq,
204 					   IST_EDGE, IPL_AUDIO, iwintr, sc);
205 		got_irq = 1;
206 	}
207 	if (!got_irq) {
208 		printf("\niwattach: couldn't get a suitable irq\n");
209 		return;
210 	}
211 	printf("\n");
212 	iwreset(sc, 0);
213 	iw_set_format(sc, AUDIO_ENCODING_ULAW, 0);
214 	iw_set_format(sc, AUDIO_ENCODING_ULAW, 1);
215 	printf("%s: interwave version %s\n",
216 		sc->sc_dev.dv_xname, iw_device.version);
217 	audio_attach_mi(sc->iw_hw_if, sc, &sc->sc_dev);
218  }
219 
220 int
221 iwopen(sc, flags)
222 	struct	iw_softc *sc;
223 	int	flags;
224 {
225 	int	s;
226 
227 	s = splaudio();
228 	if (sc->sc_open) {
229 		splx(s);
230 		DPRINTF(("iwopen: open %x sc %p\n", sc->sc_open, sc));
231 		return EBUSY;
232 	} else
233 		sc->sc_open = 1;
234 	splx(s);
235 
236 	DPRINTF(("iwopen: open %x sc %p\n", sc->sc_open, sc));
237 
238 #ifdef DIAGNOSTIC
239 	outputs = 0;
240 	iw_ints = 0;
241 	inputs = 0;
242 	iw_inints = 0;
243 #endif
244 
245 	iwreset(sc, 1);
246 
247 	/* READ/WRITE or both */
248 
249 	if (flags == FREAD) {
250 		sc->sc_mode |= IW_READ;
251 		sc->sc_reclocked = 0;
252 	}
253 	if (flags == FWRITE) {
254 		sc->sc_mode |= IW_WRITE;
255 		sc->sc_playlocked = 0;
256 	}
257 	sc->sc_playdma_cnt = 0;
258 	sc->sc_recdma_cnt = 0;
259 	sc->playfirst = 1;
260 	sc->sc_playintr = 0;
261 	sc->sc_recintr = 0;
262 
263 	return 0;
264 }
265 
266 
267 
268 void
269 iwclose(addr)
270 	void	*addr;
271 {
272 	struct	iw_softc *sc = addr;
273 
274 	DPRINTF(("iwclose sc %p\n", sc));
275 
276 #ifdef DIAGNOSTIC
277 	DPRINTF(("iwclose: outputs %d ints %d inputs %d in_ints %d\n",
278 		outputs, iw_ints, inputs, iw_inints));
279 #endif
280 
281 	/* close hardware */
282 	sc->sc_open = 0;
283 	sc->sc_flags = 0;
284 	sc->sc_mode = 0;
285 	sc->sc_playlocked = 0;
286 	sc->sc_reclocked = 0;
287 
288 	iw_stop_dma(sc, IW_DMA_PLAYBACK, 1);
289 	iw_stop_dma(sc, IW_DMA_RECORD, 1);
290 
291 	sc->sc_playdma_cnt = 0;
292 	sc->sc_recdma_cnt = 0;
293 }
294 
295 #define RAM_STEP          64*1024
296 
297 static void
298 iw_mempoke(sc, addy, val)
299 	struct	iw_softc *sc;
300 	u_long	addy;
301 	u_char	val;
302 {
303 	IW_WRITE_GENERAL_2(LMALI, (u_short) addy);
304 	IW_WRITE_GENERAL_1(LMAHI, (u_char) (addy >> 16));
305 
306 	/* Write byte to LMBDR */
307 	IW_WRITE_DIRECT_1(sc->p3xr + 7, sc->p3xr_h, val);
308 }
309 
310 static u_char
311 iw_mempeek(sc, addy)
312 	struct	iw_softc *sc;
313 	u_long	addy;
314 {
315 	u_char	ret;
316 
317 	IW_WRITE_GENERAL_2(LMALI, (u_short) addy);
318 	IW_WRITE_GENERAL_1(LMAHI, (u_char) (addy >> 16));
319 
320 	IW_READ_DIRECT_1(sc->p3xr + 7, sc->p3xr_h, ret);
321 	return ret;		/* return byte from LMBDR */
322 }
323 
324 static void
325 iw_meminit(sc)
326 	struct iw_softc *sc;
327 {
328 	u_long          bank[4] = {0L, 0L, 0L, 0L};
329 	u_long          addr = 0L, base = 0L, cnt = 0L;
330 	u_char          i, ram = 0 /* ,memval=0 */ ;
331 	u_short         lmcfi;
332 	u_long          temppi;
333 	u_long         *lpbanks = &temppi;
334 
335 	IW_WRITE_GENERAL_1(LDMACI, 0x00);
336 
337 	IW_READ_GENERAL_2(LMCFI, lmcfi);	/* 0x52 */
338 	lmcfi |= 0x0A0C;
339 	IW_WRITE_GENERAL_2(LMCFI, lmcfi);	/* max addr span */
340 	IW_WRITE_GENERAL_1(LMCI, 0x00);
341 
342 	/* fifo addresses */
343 
344 	IW_WRITE_GENERAL_2(LMRFAI, ((4 * 1024 * 1024) >> 8));
345 	IW_WRITE_GENERAL_2(LMPFAI, ((4 * 1024 * 1024 + 16 * 1024) >> 8));
346 
347 	IW_WRITE_GENERAL_2(LMFSI, 0x000);
348 
349 	IW_WRITE_GENERAL_2(LDICI, 0x0000);
350 
351 	while (addr < (16 * 1024 * 1024)) {
352 		iw_mempoke(sc, addr, 0x00);
353 		addr += RAM_STEP;
354 	}
355 
356 	printf("%s:", sc->sc_dev.dv_xname);
357 
358 	for (i = 0; i < 4; i++) {
359 		iw_mempoke(sc, base, 0xAA);	/* mark start of bank */
360 		iw_mempoke(sc, base + 1L, 0x55);
361 		if (iw_mempeek(sc, base) == 0xAA  &&
362 		    iw_mempeek(sc, base + 1L) == 0x55)
363 			ram = 1;
364 		if (ram) {
365 			while (cnt < (4 * 1024 * 1024)) {
366 				bank[i] += RAM_STEP;
367 				cnt += RAM_STEP;
368 				addr = base + cnt;
369 				if (iw_mempeek(sc, addr) == 0xAA)
370 					break;
371 			}
372 		}
373 		if (lpbanks != NULL) {
374 			*lpbanks = bank[i];
375 			lpbanks++;
376 		}
377 		bank[i] = bank[i] >> 10;
378 		printf("%s bank[%d]: %ldK", i ? "," : "", i, bank[i]);
379 		base += 4 * 1024 * 1024;
380 		cnt = 0L;
381 		ram = 0;
382 	}
383 
384 	printf("\n");
385 
386 	/*
387 	 * this is not really useful since GUS PnP supports memory
388 	 * configurations that aren't really supported by Interwave...beware
389 	 * of holes! Also, we don't use the memory for anything in this
390 	 * version of the driver.
391 	 *
392 	 * we've configured for 4M-4M-4M-4M
393 	 */
394 }
395 
396 
397 static
398 void
399 iwreset(sc, warm)
400 	struct iw_softc *sc;
401 	int             warm;
402 {
403 	u_char          reg, cmode, val = 0, mixer_image = 0;
404 
405 	reg = 0;		/* XXX gcc -Wall */
406 
407 	cmode = 0x6c;		/* enhanced codec mode (full duplex) */
408 
409 	/* reset */
410 
411 	IW_WRITE_GENERAL_1(URSTI, 0x00);
412 	delay(10);
413 	IW_WRITE_GENERAL_1(URSTI, 0x07);
414 	IW_WRITE_GENERAL_1(ICMPTI, 0x1f);	/* disable DSP and uici and
415 						 * udci writes */
416 	IW_WRITE_GENERAL_1(IDECI, 0x7f);	/* enable ints to ISA and
417 						 * codec access */
418 	IW_READ_GENERAL_1(IVERI, reg);
419 	IW_WRITE_GENERAL_1(IVERI, reg | 0x01);	/* hidden reg lock disable */
420 	IW_WRITE_GENERAL_1(UASBCI, 0x00);
421 
422 	/* synth enhanced mode (default), 0 active voices, disable ints */
423 
424 	IW_WRITE_GENERAL_1(SGMI_WR, 0x01);	/* enhanced mode, LFOs
425 						 * disabled */
426 	for (val = 0; val < 32; val++) {
427 		/* set each synth sound volume to 0 */
428 		IW_WRITE_DIRECT_1(sc->p3xr + 2, sc->p3xr_h, val);
429 		IW_WRITE_GENERAL_1(SVSI_WR, 0x00);
430 		IW_WRITE_GENERAL_2(SASLI_WR, 0x0000);
431 		IW_WRITE_GENERAL_2(SASHI_WR, 0x0000);
432 		IW_WRITE_GENERAL_2(SAELI_WR, 0x0000);
433 		IW_WRITE_GENERAL_2(SAEHI_WR, 0x0000);
434 		IW_WRITE_GENERAL_2(SFCI_WR, 0x0000);
435 		IW_WRITE_GENERAL_1(SACI_WR, 0x02);
436 		IW_WRITE_GENERAL_1(SVSI_WR, 0x00);
437 		IW_WRITE_GENERAL_1(SVEI_WR, 0x00);
438 		IW_WRITE_GENERAL_2(SVLI_WR, 0x0000);
439 		IW_WRITE_GENERAL_1(SVCI_WR, 0x02);
440 		IW_WRITE_GENERAL_1(SMSI_WR, 0x02);
441 	}
442 
443 	IW_WRITE_GENERAL_1(SAVI_WR, 0x00);
444 
445 	/* codec mode/init */
446 
447 	/* first change mode to 1 */
448 
449 	IW_WRITE_CODEC_1(CMODEI, 0x00);
450 
451 	/* and mode 3 */
452 
453 	IW_WRITE_CODEC_1(CMODEI, cmode);
454 
455 	IW_READ_CODEC_1(CMODEI, reg);
456 
457 	DPRINTF(("cmode %x\n", reg));
458 
459 	sc->revision = ((reg & 0x80) >> 3) | (reg & 0x0f);
460 
461 	IW_WRITE_DIRECT_1(sc->codec_index + 2, sc->p2xr_h, 0x00);
462 
463 	IW_WRITE_CODEC_1(CFIG1I | IW_MCE, 0x00);	/* dma 2 chan access */
464 	IW_WRITE_CODEC_1(CEXTI, 0x00);	/* disable ints for now */
465 
466 
467 	IW_WRITE_CODEC_1(CLPCTI, 0x00);	/* reset playback sample counters */
468 	IW_WRITE_CODEC_1(CUPCTI, 0x00);	/* always upper byte last */
469 	IW_WRITE_CODEC_1(CFIG2I, 0x80);	/* full voltage range, enable record
470 					 * and playback sample counters, and
471 					 * don't center output in case or
472 					 * FIFO underrun */
473 	IW_WRITE_CODEC_1(CFIG3I, 0xc0);	/* enable record/playback irq (still
474 					 * turned off from CEXTI), max dma
475 					 * rate */
476 	IW_WRITE_CODEC_1(CSR3I, 0x00);	/* clear status 3 reg */
477 
478 
479 	IW_WRITE_CODEC_1(CLRCTI, 0x00);	/* reset record sample counters */
480 	IW_WRITE_CODEC_1(CURCTI, 0x00);	/* always upper byte last */
481 
482 
483 	IW_READ_GENERAL_1(IVERI, reg);
484 
485 	sc->vers = reg >> 4;
486 	if (!warm)
487 		sprintf(iw_device.version, "%d.%d", sc->vers, sc->revision);
488 
489 	IW_WRITE_GENERAL_1(IDECI, 0x7f);	/* irqs and codec decode
490 						 * enable */
491 
492 
493 	/* ports */
494 
495 	if (!warm) {
496 		iw_mixer_line_level(sc, IW_LINE_OUT, 255, 255);
497 		iw_mixer_line_level(sc, IW_LINE_IN, 0, 0);
498 		iw_mixer_line_level(sc, IW_AUX1, 0, 0);
499 		iw_mixer_line_level(sc, IW_AUX2, 200, 200); /* CD */
500 		sc->sc_dac.off = 0;
501 		iw_mixer_line_level(sc, IW_DAC, 200, 200);
502 
503 		iw_mixer_line_level(sc, IW_MIC_IN, 0, 0);
504 		iw_mixer_line_level(sc, IW_REC, 0, 0);
505 		iw_mixer_line_level(sc, IW_LOOPBACK, 0, 0);
506 		iw_mixer_line_level(sc, IW_MONO_IN, 0, 0);
507 
508 		/* mem stuff */
509 		iw_meminit(sc);
510 
511 	}
512 	IW_WRITE_CODEC_1(CEXTI, 0x02);	/* codec int enable */
513 
514 	/* clear _LDMACI */
515 
516 	IW_WRITE_GENERAL_1(LDMACI, 0x00);
517 
518 	/* enable mixer paths */
519 	mixer_image = 0x0c;
520 	IW_WRITE_DIRECT_1(sc->p2xr, sc->p2xr_h, mixer_image);
521 	/*
522 	 * enable output, line in. disable mic in bit 0 = 0 -> line in on
523 	 * (from codec?) bit 1 = 0 -> output on bit 2 = 1 -> mic in on bit 3
524 	 * = 1 -> irq&drq pin enable bit 4 = 1 -> channel interrupts to chan
525 	 * 1 bit 5 = 1 -> enable midi loop back bit 6 = 0 -> irq latches
526 	 * URCR[2:0] bit 6 = 1 -> dma latches URCR[2:0]
527 	 */
528 
529 
530 	IW_READ_DIRECT_1(sc->p2xr, sc->p2xr_h, mixer_image);
531 #ifdef AUDIO_DEBUG
532 	if (!warm)
533 		DPRINTF(("mix image %x \n", mixer_image));
534 #endif
535 }
536 
537 struct iw_codec_freq {
538 	u_long	freq;
539 	u_char	bits;
540 };
541 
542 int
543 iw_set_speed(sc, freq, in)
544 	struct	iw_softc *sc;
545 	u_long	freq;
546 	char	in;
547 {
548 	u_char	var, cfig3, reg;
549 
550 	static struct iw_codec_freq iw_cf[17] = {
551 #define FREQ_1 24576000
552 #define FREQ_2 16934400
553 #define XTAL1 0
554 #define XTAL2 1
555 		{5510, 0x00 | XTAL2}, {6620, 0x0E | XTAL2},
556 		{8000, 0x00 | XTAL1}, {9600, 0x0E | XTAL1},
557 		{11025, 0x02 | XTAL2}, {16000, 0x02 | XTAL1},
558 		{18900, 0x04 | XTAL2}, {22050, 0x06 | XTAL2},
559 		{27420, 0x04 | XTAL1}, {32000, 0x06 | XTAL1},
560 		{33075, 0x0C | XTAL2}, {37800, 0x08 | XTAL2},
561 		{38400, 0x0A | XTAL1}, {44100, 0x0A | XTAL2},
562 		{44800, 0x08 | XTAL1}, {48000, 0x0C | XTAL1},
563 		{48000, 0x0C | XTAL1}	/* really a dummy for indexing later */
564 #undef XTAL1
565 #undef XTAL2
566 	};
567 
568 	cfig3 = 0;		/* XXX gcc -Wall */
569 
570 	/*
571 	 * if the frequency is between 3493Hz and 32KHz we can use a more
572 	 * accurate frequency than the ones listed above base on the formula
573 	 * FREQ/((16*(48+x))) where FREQ is either FREQ_1 (24576000Hz) or
574 	 * FREQ_2 (16934400Hz) and x is the value to be written to either
575 	 * CPVFI or CRVFI. To enable this option, bit 2 in CFIG3 needs to be
576 	 * set high
577 	 *
578 	 * NOT IMPLEMENTED!
579 	 *
580 	 * Note that if you have a 'bad' XTAL_1 (higher than 18.5 MHz), 44.8KHz
581 	 * and 38.4KHz modes will provide wrong frequencies to output.
582 	 */
583 
584 
585 	if (freq > 48000)
586 		freq = 48000;
587 	if (freq < 5510)
588 		freq = 5510;
589 
590 	/* reset CFIG3[2] */
591 
592 	IW_READ_CODEC_1(CFIG3I, cfig3);
593 
594 	cfig3 |= 0xc0;		/* not full fifo treshhold */
595 
596 	DPRINTF(("cfig3i = %x -> ", cfig3));
597 
598 	cfig3 &= ~0x04;
599 	IW_WRITE_CODEC_1(CFIG3I, cfig3);
600 	IW_READ_CODEC_1(CFIG3I, cfig3);
601 
602 	DPRINTF(("%x\n", cfig3));
603 
604 	for (var = 0; var < 16; var++)	/* select closest frequency */
605 		if (freq <= iw_cf[var].freq)
606 			break;
607 	if (var != 16)
608 		if (abs(freq - iw_cf[var].freq) > abs(iw_cf[var + 1].freq - freq))
609 			var++;
610 
611 	if (in)
612 		IW_WRITE_CODEC_1(CRDFI | IW_MCE, sc->recfmtbits | iw_cf[var].bits);
613 	else
614 		IW_WRITE_CODEC_1(CPDFI | IW_MCE, sc->playfmtbits | iw_cf[var].bits);
615 	freq = iw_cf[var].freq;
616 	DPRINTF(("setting %s frequency to %d bits %x \n",
617 	       in ? "in" : "out", (int) freq, iw_cf[var].bits));
618 
619 	IW_READ_CODEC_1(CPDFI, reg);
620 
621 	DPRINTF((" CPDFI %x ", reg));
622 
623 	IW_READ_CODEC_1(CRDFI, reg);
624 
625 	DPRINTF((" CRDFI %x ", reg));
626 
627 	return freq;
628 }
629 
630 /* Encoding. */
631 int
632 iw_query_encoding(addr, fp)
633 	void	*addr;
634 	struct	audio_encoding *fp;
635 {
636 	/*
637 	 * LINEAR, ALAW, ULAW, ADPCM in HW, we'll use linear unsigned
638 	 * hardware mode for all 8-bit modes due to buggy (?) codec.
639 	 */
640 
641 	/*
642 	 * except in wavetable synth. there we have only ulaw and 8 and 16
643 	 * bit linear data
644 	 */
645 
646 	switch (fp->index) {
647 	case 0:
648 		strcpy(fp->name, AudioEulinear);
649 		fp->encoding = AUDIO_ENCODING_ULINEAR_LE;
650 		fp->precision = 8;
651 		fp->flags = 0;
652 		break;
653 	case 1:
654 		strcpy(fp->name, AudioEmulaw);
655 		fp->encoding = AUDIO_ENCODING_ULAW;
656 		fp->precision = 8;
657 		fp->flags = AUDIO_ENCODINGFLAG_EMULATED;
658 		break;
659 	case 2:
660 		strcpy(fp->name, AudioEalaw);
661 		fp->encoding = AUDIO_ENCODING_ALAW;
662 		fp->precision = 8;
663 		fp->flags = AUDIO_ENCODINGFLAG_EMULATED;
664 		break;
665 	case 3:
666 		strcpy(fp->name, AudioEadpcm);
667 		fp->encoding = AUDIO_ENCODING_ADPCM;
668 		fp->precision = 8;	/* really 4 bit */
669 		fp->flags = 0;
670 		break;
671 	case 4:
672 		strcpy(fp->name, AudioEslinear_le);
673 		fp->encoding = AUDIO_ENCODING_SLINEAR_LE;
674 		fp->precision = 16;
675 		fp->flags = 0;
676 		break;
677 	case 5:
678 		strcpy(fp->name, AudioEslinear_be);
679 		fp->encoding = AUDIO_ENCODING_SLINEAR_BE;
680 		fp->precision = 16;
681 		fp->flags = 0;
682 		break;
683 	default:
684 		return (EINVAL);
685 		/* NOTREACHED */
686 	}
687 	return (0);
688 }
689 
690 
691 
692 u_long
693 iw_set_format(sc, precision, in)
694 	struct	iw_softc *sc;
695 	u_long	precision;
696 	int	in;
697 {
698 	u_char	data;
699 	int	encoding, channels;
700 
701 	encoding = in ? sc->rec_encoding : sc->play_encoding;
702 	channels = in ? sc->rec_channels : sc->play_channels;
703 
704 	DPRINTF(("iw_set_format\n"));
705 
706 	switch (encoding) {
707 	case AUDIO_ENCODING_ULAW:
708 		data = 0x00;
709 		break;
710 
711 	case AUDIO_ENCODING_ALAW:
712 		data = 0x00;
713 		break;
714 
715 	case AUDIO_ENCODING_SLINEAR_LE:
716 		if (precision == 16)
717 			data = 0x40;	/* little endian. 0xc0 is big endian */
718 		else
719 			data = 0x00;
720 		break;
721 
722 	case AUDIO_ENCODING_SLINEAR_BE:
723 		if (precision == 16)
724 			data = 0xc0;
725 		else
726 			data = 0x00;
727 		break;
728 
729 	case AUDIO_ENCODING_ADPCM:
730 		data = 0xa0;
731 		break;
732 
733 	default:
734 		return -1;
735 	}
736 
737 	if (channels == 2)
738 		data |= 0x10;	/* stereo */
739 
740 	if (in) {
741 		/* in */
742 		sc->recfmtbits = data;
743 		/* This will zero the normal codec frequency,
744 		 * iw_set_speed should always be called afterwards.
745 		 */
746 		IW_WRITE_CODEC_1(CRDFI | IW_MCE, data);
747 	} else {
748 		/* out */
749 		sc->playfmtbits = data;
750 		IW_WRITE_CODEC_1(CPDFI | IW_MCE, data);
751 	}
752 
753 	DPRINTF(("formatbits %s %x", in ? "in" : "out", data));
754 
755 	return encoding;
756 }
757 
758 
759 
760 int
761 iw_set_params(addr, setmode, usemode, p, q)
762 	void	*addr;
763 	int	setmode;
764 	int	usemode;
765 	struct	audio_params *p;
766 	struct	audio_params *q;
767 {
768 	struct	iw_softc *sc = addr;
769 	void	(*swcode)__P((void *, u_char * buf, int cnt)) = NULL;
770 	int	factor = 1;
771 	DPRINTF(("iw_setparams: code %d, prec %d, rate %d, chan %d\n",
772 		(int) p->encoding, (int) p->precision, (int) p->sample_rate,
773 		(int) p->channels));
774 
775 
776 	switch (p->encoding) {
777 	case AUDIO_ENCODING_ULAW:
778 		if (p->precision != 8)
779 			return EINVAL;
780 		swcode = setmode & AUMODE_PLAY ? mulaw_to_ulinear8 : ulinear8_to_mulaw;
781 		factor = 1;
782 		break;
783 	case AUDIO_ENCODING_ALAW:
784 		if (p->precision != 8)
785 			return EINVAL;
786 		swcode = setmode & AUMODE_PLAY ? alaw_to_ulinear8 : ulinear8_to_alaw;
787 		factor = 1;
788 		break;
789 	case AUDIO_ENCODING_ADPCM:
790 		if (p->precision != 8)
791 			return EINVAL;
792 		else
793 			break;
794 
795 	case AUDIO_ENCODING_SLINEAR_LE:
796 	case AUDIO_ENCODING_SLINEAR_BE:
797 		if (p->precision != 8 && p->precision != 16)
798 			return EINVAL;
799 		else
800 			break;
801 
802 	default:
803 		return EINVAL;
804 
805 	}
806 
807 	if (setmode & AUMODE_PLAY) {
808 		sc->play_channels = p->channels;
809 	        sc->play_encoding = p->encoding;
810 		sc->play_precision = p->precision;
811 		p->factor = factor;
812 		p->sw_code = swcode;
813 		iw_set_format(sc, p->precision, 0);
814 		q->sample_rate = p->sample_rate = sc->sc_orate =
815 			iw_set_speed(sc, p->sample_rate, 0);
816 	} else {
817 #if 0
818 		q->channels = sc->rec_channels = p->channels;
819 		q->encoding = sc->rec_encoding = p->encoding;
820 		q->precision = sc->rec_precision = p->precision;
821 #endif
822 		sc->rec_channels = q->channels;
823 		sc->rec_encoding = q->encoding;
824 		sc->rec_precision = q->precision;
825 		q->factor = factor;
826 		q->sw_code = swcode;
827 
828 		iw_set_format(sc, p->precision, 1);
829 		q->sample_rate = sc->sc_irate =
830 			iw_set_speed(sc, q->sample_rate, 1);
831 	}
832 	return 0;
833 }
834 
835 
836 int
837 iw_round_blocksize(addr, blk)
838 	void	*addr;
839 	int	blk;
840 {
841 	/* Round to a multiple of the biggest sample size. */
842 	return blk &= -4;
843 }
844 
845 void
846 iw_mixer_line_level(sc, line, levl, levr)
847 	struct	iw_softc *sc;
848 	int	line;
849 	int	levl, levr;
850 {
851 	u_char	gainl, gainr, attenl, attenr;
852 
853 	switch (line) {
854 	case IW_REC:
855 		gainl = sc->sc_recsrcbits | (levl >> 4);
856 		gainr = sc->sc_recsrcbits | (levr >> 4);
857 		DPRINTF(("recording with %x", gainl));
858 		IW_WRITE_CODEC_1(CLICI, gainl);
859 		IW_WRITE_CODEC_1(CRICI, gainr);
860 		sc->sc_rec.voll = levl & 0xf0;
861 		sc->sc_rec.volr = levr & 0xf0;
862 		break;
863 
864 	case IW_AUX1:
865 
866 		gainl = (255 - levl) >> 3;
867 		gainr = (255 - levr) >> 3;
868 
869 		/* mute if 0 level */
870 		if (levl == 0)
871 			gainl |= 0x80;
872 		if (levr == 0)
873 			gainr |= 0x80;
874 
875 		IW_WRITE_CODEC_1(IW_LEFT_AUX1_PORT, gainl);
876 		IW_WRITE_CODEC_1(IW_RIGHT_AUX1_PORT, gainr);
877 		sc->sc_aux1.voll = levl & 0xf8;
878 		sc->sc_aux1.volr = levr & 0xf8;
879 
880 		break;
881 
882 	case IW_AUX2:
883 
884 		gainl = (255 - levl) >> 3;
885 		gainr = (255 - levr) >> 3;
886 
887 		/* mute if 0 level */
888 		if (levl == 0)
889 			gainl |= 0x80;
890 		if (levr == 0)
891 			gainr |= 0x80;
892 
893 		IW_WRITE_CODEC_1(IW_LEFT_AUX2_PORT, gainl);
894 		IW_WRITE_CODEC_1(IW_RIGHT_AUX2_PORT, gainr);
895 		sc->sc_aux2.voll = levl & 0xf8;
896 		sc->sc_aux2.volr = levr & 0xf8;
897 		break;
898 	case IW_DAC:
899 		attenl = ((255 - levl) >> 2) | ((levl && !sc->sc_dac.off) ? 0 : 0x80);
900 		attenr = ((255 - levr) >> 2) | ((levr && !sc->sc_dac.off) ? 0 : 0x80);
901 		IW_WRITE_CODEC_1(CLDACI, attenl);
902 		IW_WRITE_CODEC_1(CRDACI, attenr);
903 		sc->sc_dac.voll = levl & 0xfc;
904 		sc->sc_dac.volr = levr & 0xfc;
905 		break;
906 	case IW_LOOPBACK:
907 		attenl = ((255 - levl) & 0xfc) | (levl ? 0x01 : 0);
908 		IW_WRITE_CODEC_1(CLCI, attenl);
909 		sc->sc_loopback.voll = levl & 0xfc;
910 		break;
911 	case IW_LINE_IN:
912 		gainl = (levl >> 3) | (levl ? 0 : 0x80);
913 		gainr = (levr >> 3) | (levr ? 0 : 0x80);
914 		IW_WRITE_CODEC_1(CLLICI, gainl);
915 		IW_WRITE_CODEC_1(CRLICI, gainr);
916 		sc->sc_linein.voll = levl & 0xf8;
917 		sc->sc_linein.volr = levr & 0xf8;
918 		break;
919 	case IW_MIC_IN:
920 		gainl = ((255 - levl) >> 3) | (levl ? 0 : 0x80);
921 		gainr = ((255 - levr) >> 3) | (levr ? 0 : 0x80);
922 		IW_WRITE_CODEC_1(CLMICI, gainl);
923 		IW_WRITE_CODEC_1(CRMICI, gainr);
924 		sc->sc_mic.voll = levl & 0xf8;
925 		sc->sc_mic.volr = levr & 0xf8;
926 		break;
927 	case IW_LINE_OUT:
928 		attenl = ((255 - levl) >> 3) | (levl ? 0 : 0x80);
929 		attenr = ((255 - levr) >> 3) | (levr ? 0 : 0x80);
930 		IW_WRITE_CODEC_1(CLOAI, attenl);
931 		IW_WRITE_CODEC_1(CROAI, attenr);
932 		sc->sc_lineout.voll = levl & 0xf8;
933 		sc->sc_lineout.volr = levr & 0xf8;
934 		break;
935 	case IW_MONO_IN:
936 		attenl = ((255 - levl) >> 4) | (levl ? 0 : 0xc0);	/* in/out mute */
937 		IW_WRITE_CODEC_1(CMONOI, attenl);
938 		sc->sc_monoin.voll = levl & 0xf0;
939 		break;
940 	}
941 }
942 
943 int
944 iw_commit_settings(addr)
945 	void	*addr;
946 {
947 	return 0;
948 }
949 
950 
951 void
952 iw_trigger_dma(sc, io)
953 	struct	iw_softc *sc;
954 	u_char	io;
955 {
956 	u_char	reg;
957 	int	s;
958 
959 	s = splaudio();
960 
961 	IW_READ_CODEC_1(CSR3I, reg);
962 	IW_WRITE_CODEC_1(CSR3I, reg & ~(io == IW_DMA_PLAYBACK ? 0x10 : 0x20));
963 
964 	IW_READ_CODEC_1(CFIG1I, reg);
965 
966 	IW_WRITE_CODEC_1(CFIG1I, reg | io);
967 
968 	/* let the counter run */
969 	IW_READ_CODEC_1(CFIG2I, reg);
970 	IW_WRITE_CODEC_1(CFIG2I, reg & ~(io << 4));
971 
972 	splx(s);
973 }
974 
975 void
976 iw_stop_dma(sc, io, hard)
977 	struct	iw_softc *sc;
978 	u_char	io, hard;
979 {
980 	u_char	reg;
981 
982 	/* just stop the counter, no need to flush the fifo */
983 	IW_READ_CODEC_1(CFIG2I, reg);
984 	IW_WRITE_CODEC_1(CFIG2I, (reg | (io << 4)));
985 
986 	if (hard) {
987 		/* unless we're closing the device */
988 		IW_READ_CODEC_1(CFIG1I, reg);
989 		IW_WRITE_CODEC_1(CFIG1I, reg & ~io);
990 	}
991 }
992 
993 void
994 iw_dma_count(sc, count, io)
995 	struct	iw_softc *sc;
996 	u_short	count;
997 	int	io;
998 {
999 	if (io == IW_DMA_PLAYBACK) {
1000 		IW_WRITE_CODEC_1(CLPCTI, (u_char) (count & 0x00ff));
1001 		IW_WRITE_CODEC_1(CUPCTI, (u_char) ((count >> 8) & 0x00ff));
1002 	} else {
1003 		IW_WRITE_CODEC_1(CLRCTI, (u_char) (count & 0x00ff));
1004 		IW_WRITE_CODEC_1(CURCTI, (u_char) ((count >> 8) & 0x00ff));
1005 	}
1006 }
1007 
1008 int
1009 iw_init_output(addr, buf, cc)
1010 	void	*addr;
1011 	void	*buf;
1012 	int	cc;
1013 {
1014 	struct iw_softc *sc = (struct iw_softc *) addr;
1015 
1016 	DPRINTF(("iw_init_output\n"));
1017 
1018 	isa_dmastart(sc->sc_ic, sc->sc_playdrq, buf,
1019 		     cc, NULL, DMAMODE_WRITE | DMAMODE_LOOP, BUS_DMA_NOWAIT);
1020 	return 0;
1021 }
1022 
1023 int
1024 iw_init_input(addr, buf, cc)
1025 	void	*addr;
1026 	void	*buf;
1027 	int	cc;
1028 {
1029 	struct	iw_softc *sc = (struct iw_softc *) addr;
1030 
1031 	DPRINTF(("iw_init_input\n"));
1032 
1033 	isa_dmastart(sc->sc_ic, sc->sc_recdrq, buf,
1034 		     cc, NULL, DMAMODE_READ | DMAMODE_LOOP, BUS_DMA_NOWAIT);
1035 	return 0;
1036 }
1037 
1038 
1039 int
1040 iw_start_output(addr, p, cc, intr, arg)
1041 	void	*addr;
1042 	void	*p;
1043 	int	cc;
1044 	void	(*intr)__P((void *));
1045 	void	*arg;
1046 {
1047 	struct	iw_softc *sc = addr;
1048 	int	counter;
1049 
1050 #ifdef AUDIO_DEBUG
1051 	if (sc->sc_playlocked) {
1052 		DPRINTF(("iw_start_output: playback dma already going on\n"));
1053 		/* return 0; */
1054 	}
1055 #endif
1056 
1057 	sc->sc_playlocked = 1;
1058 #ifdef DIAGNOSTIC
1059 	if (!intr) {
1060 		printf("iw_start_output: no callback!\n");
1061 		return 1;
1062 	}
1063 #endif
1064 
1065 	sc->sc_playintr = intr;
1066 	sc->sc_playarg = arg;
1067 	sc->sc_dma_flags |= DMAMODE_WRITE;
1068 	sc->sc_playdma_bp = p;
1069 
1070 	counter = 0;
1071 
1072 	isa_dmastart(sc->sc_ic, sc->sc_playdrq, sc->sc_playdma_bp,
1073 		     cc, NULL, DMAMODE_WRITE, BUS_DMA_NOWAIT);
1074 
1075 
1076 	if (sc->play_encoding == AUDIO_ENCODING_ADPCM)
1077 		cc >>= 2;
1078 	if (sc->play_precision == 16)
1079 		cc >>= 1;
1080 
1081 	if (sc->play_channels == 2 && sc->play_encoding != AUDIO_ENCODING_ADPCM)
1082 		cc >>= 1;
1083 
1084 	cc -= iw_cc;
1085 
1086 
1087 	/* iw_dma_access(sc,1); */
1088 	if (cc != sc->sc_playdma_cnt) {
1089 		iw_dma_count(sc, (u_short) cc, IW_DMA_PLAYBACK);
1090 		sc->sc_playdma_cnt = cc;
1091 
1092 		iw_trigger_dma(sc, IW_DMA_PLAYBACK);
1093 	}
1094 
1095 #ifdef DIAGNOSTIC
1096 	if (outputs != iw_ints)
1097 		printf("iw_start_output: out %d, int %d\n", outputs, iw_ints);
1098 	outputs++;
1099 #endif
1100 	return 0;
1101 }
1102 
1103 
1104 int
1105 iw_start_input(addr, p, cc, intr, arg)
1106 	void	*addr;
1107 	void	*p;
1108 	int	cc;
1109 	void	(*intr)__P((void *));
1110 	void	*arg;
1111 {
1112 	struct	iw_softc *sc = addr;
1113 	int	counter;
1114 
1115 #if AUDIO_DEBUG
1116 	if (sc->sc_reclocked) {
1117 		DPRINTF(("iw_start_input: record dma already going on\n"));
1118 		/* return 0; */
1119 	}
1120 #endif
1121 
1122 	sc->sc_reclocked = 1;
1123 #ifdef DIAGNOSTIC
1124 	if (!intr) {
1125 		printf("iw_start_input: no callback!\n");
1126 		return 1;
1127 	}
1128 #endif
1129 
1130 
1131 	sc->sc_recintr = intr;
1132 	sc->sc_recarg = arg;
1133 	sc->sc_dma_flags |= DMAMODE_READ;
1134 	sc->sc_recdma_bp = p;
1135 
1136 	counter = 0;
1137 
1138 	isa_dmastart(sc->sc_ic, sc->sc_recdrq, sc->sc_recdma_bp,
1139 		     cc, NULL, DMAMODE_READ, BUS_DMA_NOWAIT);
1140 
1141 
1142 	if (sc->rec_encoding == AUDIO_ENCODING_ADPCM)
1143 		cc >>= 2;
1144 	if (sc->rec_precision == 16)
1145 		cc >>= 1;
1146 
1147 	if (sc->rec_channels == 2 && sc->rec_encoding != AUDIO_ENCODING_ADPCM)
1148 		cc >>= 1;
1149 
1150 	cc -= iw_cc;
1151 
1152 	/* iw_dma_access(sc,0); */
1153 	if (sc->sc_recdma_cnt != cc) {
1154 		iw_dma_count(sc, (u_short) cc, IW_DMA_RECORD);
1155 		sc->sc_recdma_cnt = cc;
1156 		/* iw_dma_ctrl(sc, IW_DMA_RECORD); */
1157 		iw_trigger_dma(sc, IW_DMA_RECORD);
1158 	}
1159 
1160 #ifdef DIAGNOSTIC
1161 	if ((inputs != iw_inints))
1162 		printf("iw_start_input: in %d, inints %d\n", inputs, iw_inints);
1163 	inputs++;
1164 #endif
1165 
1166 	return 0;
1167 }
1168 
1169 
1170 int
1171 iw_halt_output(addr)
1172 	void	*addr;
1173 {
1174 	struct	iw_softc *sc = addr;
1175 	iw_stop_dma(sc, IW_DMA_PLAYBACK, 0);
1176 	/* sc->sc_playlocked = 0; */
1177 	return 0;
1178 }
1179 
1180 
1181 int
1182 iw_halt_input(addr)
1183 	void	*addr;
1184 {
1185 	struct	iw_softc *sc = addr;
1186 	iw_stop_dma(sc, IW_DMA_RECORD, 0);
1187 	/* sc->sc_reclocked = 0; */
1188 	return 0;
1189 }
1190 
1191 
1192 int
1193 iw_speaker_ctl(addr, newstate)
1194 	void	*addr;
1195 	int	newstate;
1196 {
1197 	struct	iw_softc *sc = addr;
1198 	u_char          reg;
1199 	if (newstate == SPKR_ON) {
1200 		sc->sc_dac.off = 0;
1201 		IW_READ_CODEC_1(CLDACI, reg);
1202 		IW_WRITE_CODEC_1(CLDACI, reg & 0x7f);
1203 		IW_READ_CODEC_1(CRDACI, reg);
1204 		IW_WRITE_CODEC_1(CRDACI, reg & 0x7f);
1205 	} else {
1206 		/* SPKR_OFF */
1207 		sc->sc_dac.off = 1;
1208 		IW_READ_CODEC_1(CLDACI, reg);
1209 		IW_WRITE_CODEC_1(CLDACI, reg | 0x80);
1210 		IW_READ_CODEC_1(CRDACI, reg);
1211 		IW_WRITE_CODEC_1(CRDACI, reg | 0x80);
1212 	}
1213 	return 0;
1214 }
1215 
1216 
1217 int
1218 iw_getdev(addr, retp)
1219 	void	*addr;
1220 	struct	audio_device *retp;
1221 {
1222 	*retp = iw_device;
1223 	return 0;
1224 }
1225 
1226 
1227 int
1228 iw_setfd(addr, flag)
1229 	void	*addr;
1230 	int	flag;
1231 {
1232 	return 0;
1233 }
1234 
1235 
1236 /* Mixer (in/out ports) */
1237 int
1238 iw_set_port(addr, cp)
1239 	void	*addr;
1240 	mixer_ctrl_t *cp;
1241 {
1242 	struct	iw_softc *sc = addr;
1243 	u_char	vall = 0, valr = 0;
1244 	int	error = EINVAL;
1245 
1246 	switch (cp->dev) {
1247 	case IW_MIC_IN_LVL:
1248 		if (cp->type == AUDIO_MIXER_VALUE) {
1249 			error = 0;
1250 			if (cp->un.value.num_channels == 1) {
1251 				vall = valr = cp->un.value.level[0];
1252 			} else {
1253 				vall = cp->un.value.level[0];
1254 				valr = cp->un.value.level[1];
1255 			}
1256 			sc->sc_mic.voll = vall;
1257 			sc->sc_mic.volr = valr;
1258 			iw_mixer_line_level(sc, IW_MIC_IN, vall, valr);
1259 		}
1260 		break;
1261 	case IW_AUX1_LVL:
1262 		if (cp->type == AUDIO_MIXER_VALUE) {
1263 			error = 0;
1264 			if (cp->un.value.num_channels == 1) {
1265 				vall = valr = cp->un.value.level[0];
1266 			} else {
1267 				vall = cp->un.value.level[0];
1268 				valr = cp->un.value.level[1];
1269 			}
1270 			sc->sc_aux1.voll = vall;
1271 			sc->sc_aux1.volr = valr;
1272 			iw_mixer_line_level(sc, IW_AUX1, vall, valr);
1273 		}
1274 		break;
1275 	case IW_AUX2_LVL:
1276 		if (cp->type == AUDIO_MIXER_VALUE) {
1277 			error = 0;
1278 			if (cp->un.value.num_channels == 1) {
1279 				vall = valr = cp->un.value.level[0];
1280 			} else {
1281 				vall = cp->un.value.level[0];
1282 				valr = cp->un.value.level[1];
1283 			}
1284 			sc->sc_aux2.voll = vall;
1285 			sc->sc_aux2.volr = valr;
1286 			iw_mixer_line_level(sc, IW_AUX2, vall, valr);
1287 		}
1288 		break;
1289 	case IW_LINE_IN_LVL:
1290 		if (cp->type == AUDIO_MIXER_VALUE) {
1291 			error = 0;
1292 			if (cp->un.value.num_channels == 1) {
1293 				vall = valr = cp->un.value.level[0];
1294 			} else {
1295 				vall = cp->un.value.level[0];
1296 				valr = cp->un.value.level[1];
1297 			}
1298 			sc->sc_linein.voll = vall;
1299 			sc->sc_linein.volr = valr;
1300 			iw_mixer_line_level(sc, IW_LINE_IN, vall, valr);
1301 		}
1302 		break;
1303 	case IW_LINE_OUT_LVL:
1304 		if (cp->type == AUDIO_MIXER_VALUE) {
1305 			error = 0;
1306 			if (cp->un.value.num_channels == 1) {
1307 				vall = valr = cp->un.value.level[0];
1308 			} else {
1309 				vall = cp->un.value.level[0];
1310 				valr = cp->un.value.level[1];
1311 			}
1312 			sc->sc_lineout.voll = vall;
1313 			sc->sc_lineout.volr = valr;
1314 			iw_mixer_line_level(sc, IW_LINE_OUT, vall, valr);
1315 		}
1316 		break;
1317 	case IW_REC_LVL:
1318 		if (cp->type == AUDIO_MIXER_VALUE) {
1319 			error = 0;
1320 			if (cp->un.value.num_channels == 1) {
1321 				vall = valr = cp->un.value.level[0];
1322 			} else {
1323 				vall = cp->un.value.level[0];
1324 				valr = cp->un.value.level[1];
1325 			}
1326 			sc->sc_rec.voll = vall;
1327 			sc->sc_rec.volr = valr;
1328 			iw_mixer_line_level(sc, IW_REC, vall, valr);
1329 		}
1330 		break;
1331 
1332 	case IW_DAC_LVL:
1333 		if (cp->type == AUDIO_MIXER_VALUE) {
1334 			error = 0;
1335 			if (cp->un.value.num_channels == 1) {
1336 				vall = valr = cp->un.value.level[0];
1337 			} else {
1338 				vall = cp->un.value.level[0];
1339 				valr = cp->un.value.level[1];
1340 			}
1341 			sc->sc_dac.voll = vall;
1342 			sc->sc_dac.volr = valr;
1343 			iw_mixer_line_level(sc, IW_DAC, vall, valr);
1344 		}
1345 		break;
1346 
1347 	case IW_LOOPBACK_LVL:
1348 		if (cp->type == AUDIO_MIXER_VALUE) {
1349 			error = 0;
1350 			if (cp->un.value.num_channels != 1) {
1351 				return EINVAL;
1352 			} else {
1353 				valr = vall = cp->un.value.level[0];
1354 			}
1355 			sc->sc_loopback.voll = vall;
1356 			sc->sc_loopback.volr = valr;
1357 			iw_mixer_line_level(sc, IW_LOOPBACK, vall, valr);
1358 		}
1359 		break;
1360 
1361 	case IW_MONO_IN_LVL:
1362 		if (cp->type == AUDIO_MIXER_VALUE) {
1363 			error = 0;
1364 			if (cp->un.value.num_channels != 1) {
1365 				return EINVAL;
1366 			} else {
1367 				valr = vall = cp->un.value.level[0];
1368 			}
1369 			sc->sc_monoin.voll = vall;
1370 			sc->sc_monoin.volr = valr;
1371 			iw_mixer_line_level(sc, IW_MONO_IN, vall, valr);
1372 		}
1373 		break;
1374 	case IW_RECORD_SOURCE:
1375 		error = 0;
1376 		sc->sc_recsrcbits = cp->un.ord << 6;
1377 		DPRINTF(("record source %d bits %x\n", cp->un.ord, sc->sc_recsrcbits));
1378 		iw_mixer_line_level(sc, IW_REC, sc->sc_rec.voll, sc->sc_rec.volr);
1379 		break;
1380 	}
1381 
1382 	return error;
1383 }
1384 
1385 
1386 int
1387 iw_get_port(addr, cp)
1388 	void	*addr;
1389 	mixer_ctrl_t *cp;
1390 {
1391 	struct	iw_softc *sc = addr;
1392 
1393 	int	error = EINVAL;
1394 
1395 	switch (cp->dev) {
1396 	case IW_MIC_IN_LVL:
1397 		if (cp->type == AUDIO_MIXER_VALUE) {
1398 			cp->un.value.num_channels = 2;
1399 			cp->un.value.level[0] = sc->sc_mic.voll;
1400 			cp->un.value.level[1] = sc->sc_mic.volr;
1401 			error = 0;
1402 		}
1403 		break;
1404 	case IW_AUX1_LVL:
1405 		if (cp->type == AUDIO_MIXER_VALUE) {
1406 			cp->un.value.num_channels = 2;
1407 			cp->un.value.level[0] = sc->sc_aux1.voll;
1408 			cp->un.value.level[1] = sc->sc_aux1.volr;
1409 			error = 0;
1410 		}
1411 		break;
1412 	case IW_AUX2_LVL:
1413 		if (cp->type == AUDIO_MIXER_VALUE) {
1414 			cp->un.value.num_channels = 2;
1415 			cp->un.value.level[0] = sc->sc_aux2.voll;
1416 			cp->un.value.level[1] = sc->sc_aux2.volr;
1417 			error = 0;
1418 		}
1419 		break;
1420 	case IW_LINE_OUT_LVL:
1421 		if (cp->type == AUDIO_MIXER_VALUE) {
1422 			cp->un.value.num_channels = 2;
1423 			cp->un.value.level[0] = sc->sc_lineout.voll;
1424 			cp->un.value.level[1] = sc->sc_lineout.volr;
1425 			error = 0;
1426 		}
1427 		break;
1428 	case IW_LINE_IN_LVL:
1429 		if (cp->type == AUDIO_MIXER_VALUE) {
1430 			cp->un.value.num_channels = 2;
1431 			cp->un.value.level[0] = sc->sc_linein.voll;
1432 			cp->un.value.level[1] = sc->sc_linein.volr;
1433 			error = 0;
1434 		}
1435 	case IW_REC_LVL:
1436 		if (cp->type == AUDIO_MIXER_VALUE) {
1437 			cp->un.value.num_channels = 2;
1438 			cp->un.value.level[0] = sc->sc_rec.voll;
1439 			cp->un.value.level[1] = sc->sc_rec.volr;
1440 			error = 0;
1441 		}
1442 		break;
1443 
1444 	case IW_DAC_LVL:
1445 		if (cp->type == AUDIO_MIXER_VALUE) {
1446 			cp->un.value.num_channels = 2;
1447 			cp->un.value.level[0] = sc->sc_dac.voll;
1448 			cp->un.value.level[1] = sc->sc_dac.volr;
1449 			error = 0;
1450 		}
1451 		break;
1452 
1453 	case IW_LOOPBACK_LVL:
1454 		if (cp->type == AUDIO_MIXER_VALUE) {
1455 			cp->un.value.num_channels = 1;
1456 			cp->un.value.level[0] = sc->sc_loopback.voll;
1457 			error = 0;
1458 		}
1459 		break;
1460 
1461 	case IW_MONO_IN_LVL:
1462 		if (cp->type == AUDIO_MIXER_VALUE) {
1463 			cp->un.value.num_channels = 1;
1464 			cp->un.value.level[0] = sc->sc_monoin.voll;
1465 			error = 0;
1466 		}
1467 		break;
1468 	case IW_RECORD_SOURCE:
1469 		cp->un.ord = sc->sc_recsrcbits >> 6;
1470 		error = 0;
1471 		break;
1472 	}
1473 
1474 	return error;
1475 }
1476 
1477 
1478 
1479 int
1480 iw_query_devinfo(addr, dip)
1481 	void	*addr;
1482 	mixer_devinfo_t *dip;
1483 {
1484 
1485 	switch (dip->index) {
1486 	case IW_MIC_IN_LVL:	/* Microphone */
1487 		dip->type = AUDIO_MIXER_VALUE;
1488 		dip->mixer_class = IW_INPUT_CLASS;
1489 		dip->prev = AUDIO_MIXER_LAST;
1490 		dip->next = AUDIO_MIXER_LAST;
1491 		strcpy(dip->label.name, AudioNmicrophone);
1492 		dip->un.v.num_channels = 2;
1493 		strcpy(dip->un.v.units.name, AudioNvolume);
1494 		break;
1495 	case IW_AUX1_LVL:
1496 		dip->type = AUDIO_MIXER_VALUE;
1497 		dip->mixer_class = IW_INPUT_CLASS;
1498 		dip->prev = AUDIO_MIXER_LAST;
1499 		dip->next = AUDIO_MIXER_LAST;
1500 		strcpy(dip->label.name, AudioNline);
1501 		dip->un.v.num_channels = 2;
1502 		strcpy(dip->un.v.units.name, AudioNvolume);
1503 		break;
1504 	case IW_AUX2_LVL:
1505 		dip->type = AUDIO_MIXER_VALUE;
1506 		dip->mixer_class = IW_INPUT_CLASS;
1507 		dip->prev = AUDIO_MIXER_LAST;
1508 		dip->next = AUDIO_MIXER_LAST;
1509 		strcpy(dip->label.name, AudioNcd);
1510 		dip->un.v.num_channels = 2;
1511 		strcpy(dip->un.v.units.name, AudioNvolume);
1512 		break;
1513 	case IW_LINE_OUT_LVL:
1514 		dip->type = AUDIO_MIXER_VALUE;
1515 		dip->mixer_class = IW_OUTPUT_CLASS;
1516 		dip->prev = AUDIO_MIXER_LAST;
1517 		dip->next = AUDIO_MIXER_LAST;
1518 		strcpy(dip->label.name, AudioNline);
1519 		dip->un.v.num_channels = 2;
1520 		strcpy(dip->un.v.units.name, AudioNvolume);
1521 		break;
1522 	case IW_DAC_LVL:
1523 		dip->type = AUDIO_MIXER_VALUE;
1524 		dip->mixer_class = IW_OUTPUT_CLASS;
1525 		dip->prev = AUDIO_MIXER_LAST;
1526 		dip->next = AUDIO_MIXER_LAST;
1527 		strcpy(dip->label.name, AudioNdac);
1528 		dip->un.v.num_channels = 2;
1529 		strcpy(dip->un.v.units.name, AudioNvolume);
1530 		break;
1531 	case IW_LINE_IN_LVL:
1532 		dip->type = AUDIO_MIXER_VALUE;
1533 		dip->mixer_class = IW_INPUT_CLASS;
1534 		dip->prev = AUDIO_MIXER_LAST;
1535 		dip->next = AUDIO_MIXER_LAST;
1536 		strcpy(dip->label.name, AudioNinput);
1537 		dip->un.v.num_channels = 2;
1538 		strcpy(dip->un.v.units.name, AudioNvolume);
1539 		break;
1540 	case IW_MONO_IN_LVL:
1541 		dip->type = AUDIO_MIXER_VALUE;
1542 		dip->mixer_class = IW_INPUT_CLASS;
1543 		dip->prev = AUDIO_MIXER_LAST;
1544 		dip->next = AUDIO_MIXER_LAST;
1545 		strcpy(dip->label.name, AudioNmono);
1546 		dip->un.v.num_channels = 1;
1547 		strcpy(dip->un.v.units.name, AudioNvolume);
1548 		break;
1549 
1550 	case IW_REC_LVL:	/* record level */
1551 		dip->type = AUDIO_MIXER_VALUE;
1552 		dip->mixer_class = IW_RECORD_CLASS;
1553 		dip->prev = AUDIO_MIXER_LAST;
1554 		dip->next = AUDIO_MIXER_LAST;
1555 		strcpy(dip->label.name, AudioNrecord);
1556 		dip->un.v.num_channels = 2;
1557 		strcpy(dip->un.v.units.name, AudioNvolume);
1558 		break;
1559 
1560 	case IW_LOOPBACK_LVL:
1561 		dip->type = AUDIO_MIXER_VALUE;
1562 		dip->mixer_class = IW_RECORD_CLASS;
1563 		dip->prev = AUDIO_MIXER_LAST;
1564 		dip->next = AUDIO_MIXER_LAST;
1565 		strcpy(dip->label.name, "filter");
1566 		dip->un.v.num_channels = 1;
1567 		strcpy(dip->un.v.units.name, AudioNvolume);
1568 		break;
1569 
1570 	case IW_RECORD_SOURCE:
1571 		dip->mixer_class = IW_RECORD_CLASS;
1572 		dip->type = AUDIO_MIXER_ENUM;
1573 		dip->prev = AUDIO_MIXER_LAST;
1574 		dip->next = AUDIO_MIXER_LAST;
1575 		strcpy(dip->label.name, AudioNsource);
1576 		dip->un.e.num_mem = 4;
1577 		strcpy(dip->un.e.member[0].label.name, AudioNline);
1578 		dip->un.e.member[0].ord = IW_LINE_IN_SRC;
1579 		strcpy(dip->un.e.member[1].label.name, "aux1");
1580 		dip->un.e.member[1].ord = IW_AUX1_SRC;
1581 		strcpy(dip->un.e.member[2].label.name, AudioNmicrophone);
1582 		dip->un.e.member[2].ord = IW_MIC_IN_SRC;
1583 		strcpy(dip->un.e.member[3].label.name, AudioNmixerout);
1584 		dip->un.e.member[3].ord = IW_MIX_OUT_SRC;
1585 		break;
1586 	case IW_INPUT_CLASS:
1587 		dip->type = AUDIO_MIXER_CLASS;
1588 		dip->mixer_class = IW_INPUT_CLASS;
1589 		dip->next = dip->prev = AUDIO_MIXER_LAST;
1590 		strcpy(dip->label.name, AudioCinputs);
1591 		break;
1592 	case IW_OUTPUT_CLASS:
1593 		dip->type = AUDIO_MIXER_CLASS;
1594 		dip->mixer_class = IW_OUTPUT_CLASS;
1595 		dip->next = dip->prev = AUDIO_MIXER_LAST;
1596 		strcpy(dip->label.name, AudioCoutputs);
1597 		break;
1598 	case IW_RECORD_CLASS:	/* record source class */
1599 		dip->type = AUDIO_MIXER_CLASS;
1600 		dip->mixer_class = IW_RECORD_CLASS;
1601 		dip->next = dip->prev = AUDIO_MIXER_LAST;
1602 		strcpy(dip->label.name, AudioCrecord);
1603 		return 0;
1604 	default:
1605 		return ENXIO;
1606 	}
1607 	return 0;
1608 }
1609 
1610 
1611 void *
1612 iw_malloc(addr, direction, size, pool, flags)
1613 	void	*addr;
1614 	int	direction;
1615 	size_t	size;
1616 	int	pool, flags;
1617 {
1618 	struct iw_softc *sc = addr;
1619 	int drq;
1620 
1621 	if (direction == AUMODE_PLAY)
1622 		drq = sc->sc_playdrq;
1623 	else
1624 		drq = sc->sc_recdrq;
1625 	return (isa_malloc(sc->sc_ic, drq, size, pool, flags));
1626 }
1627 
1628 void
1629 iw_free(addr, ptr, pool)
1630 	void	*addr;
1631 	void	*ptr;
1632 	int	pool;
1633 {
1634 	isa_free(ptr, pool);
1635 }
1636 
1637 size_t
1638 iw_round_buffersize(addr, direction, size)
1639 	void	*addr;
1640 	int	direction;
1641 	size_t	size;
1642 {
1643 	struct iw_softc *sc = addr;
1644 	bus_size_t maxsize;
1645 
1646 	if (direction == AUMODE_PLAY)
1647 		maxsize = sc->sc_play_maxsize;
1648 	else
1649 		maxsize = sc->sc_rec_maxsize;
1650 
1651 	if (size > maxsize)
1652 		size = maxsize;
1653 	return (size);
1654 }
1655 
1656 int
1657 iw_mappage(addr, mem, off, prot)
1658 	void	*addr;
1659 	void	*mem;
1660 	int	off;
1661 	int	prot;
1662 {
1663 	return isa_mappage(mem, off, prot);
1664 }
1665 
1666 int
1667 iw_get_props(addr)
1668 	void	*addr;
1669 {
1670 	struct iw_softc *sc = addr;
1671 	return AUDIO_PROP_MMAP |
1672 		(sc->sc_fullduplex ? AUDIO_PROP_FULLDUPLEX : 0);
1673 }
1674