xref: /netbsd-src/sys/dev/pci/cmpci.c (revision 5aefcfdc06931dd97e76246d2fe0302f7b3fe094)
1 /*	$NetBSD: cmpci.c,v 1.5 2000/12/28 22:59:11 sommerfeld Exp $	*/
2 
3 /*
4  * Copyright (c) 2000 The NetBSD Foundation, Inc.
5  * All rights reserved.
6  *
7  * This code is derived from software contributed to The NetBSD Foundation
8  * by Takuya SHIOZAKI <AoiMoe@imou.to> .
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 AUTHOR AND CONTRIBUTORS ``AS IS'' AND
20  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
21  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
22  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
23  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
24  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
25  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
26  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
27  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
28  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
29  * SUCH DAMAGE.
30  *
31  */
32 
33 /*
34  * C-Media CMI8x38 Audio Chip Support.
35  *
36  * TODO:
37  *   - Legacy MPU, OPL and Joystick support (but, I have no interest...)
38  *   - SPDIF support.
39  *
40  * ACKNOWLEDGEMENT:
41  *   - Lennart Augustsson : He touched up this code.
42  *
43  */
44 
45 #undef CMPCI_SPDIF_SUPPORT  /* XXX: not working */
46 
47 #if defined(AUDIO_DEBUG) || defined(DEBUG)
48 #define DPRINTF(x) printf x
49 #else
50 #define DPRINTF(x)
51 #endif
52 
53 #include <sys/param.h>
54 #include <sys/systm.h>
55 #include <sys/kernel.h>
56 #include <sys/malloc.h>
57 #include <sys/device.h>
58 #include <sys/proc.h>
59 
60 #include <dev/pci/pcidevs.h>
61 #include <dev/pci/pcivar.h>
62 
63 #include <sys/audioio.h>
64 #include <dev/audio_if.h>
65 #include <dev/midi_if.h>
66 
67 #include <dev/mulaw.h>
68 #include <dev/auconv.h>
69 #include <dev/pci/cmpcireg.h>
70 #include <dev/pci/cmpcivar.h>
71 
72 #include <dev/ic/mpuvar.h>
73 #include <machine/bus.h>
74 #include <machine/intr.h>
75 
76 /*
77  * Low-level HW interface
78  */
79 static __inline uint8_t cmpci_mixerreg_read __P((struct cmpci_softc *,
80                                                  uint8_t));
81 static __inline void cmpci_mixerreg_write __P((struct cmpci_softc *,
82                                                uint8_t, uint8_t));
83 static __inline void cmpci_reg_partial_write_4 __P((struct cmpci_softc *,
84                                                     int, int,
85                                                     uint32_t, uint32_t));
86 static __inline void cmpci_reg_set_4 __P((struct cmpci_softc *,
87                                           int, uint32_t));
88 static __inline void cmpci_reg_clear_4 __P((struct cmpci_softc *,
89                                             int, uint32_t));
90 static int cmpci_rate_to_index __P((int));
91 static __inline int cmpci_index_to_rate __P((int));
92 static __inline int cmpci_index_to_divider __P((int));
93 
94 static int cmpci_adjust __P((int, int));
95 static void cmpci_set_mixer_gain __P((struct cmpci_softc *, int));
96 static int cmpci_set_in_ports __P((struct cmpci_softc *, int));
97 
98 
99 /*
100  * autoconf interface
101  */
102 static int cmpci_match __P((struct device *, struct cfdata *, void *));
103 static void cmpci_attach __P((struct device *, struct device *, void *));
104 
105 struct cfattach cmpci_ca = {
106 	sizeof (struct cmpci_softc), cmpci_match, cmpci_attach
107 };
108 
109 /* interrupt */
110 static int cmpci_intr __P((void *));
111 
112 
113 /*
114  * DMA stuffs
115  */
116 static int cmpci_alloc_dmamem __P((struct cmpci_softc *,
117                                    size_t, int, int, caddr_t *));
118 static int cmpci_free_dmamem __P((struct cmpci_softc *, caddr_t, int));
119 static struct cmpci_dmanode * cmpci_find_dmamem __P((struct cmpci_softc *,
120                                                      caddr_t));
121 
122 
123 /*
124  * interface to machine independent layer
125  */
126 static int cmpci_open __P((void *, int));
127 static void cmpci_close __P((void *));
128 static int cmpci_query_encoding __P((void *, struct audio_encoding *));
129 static int cmpci_set_params __P((void *, int, int,
130                                  struct audio_params *,
131                                  struct audio_params *));
132 static int cmpci_round_blocksize __P((void *, int));
133 static int cmpci_halt_output __P((void *));
134 static int cmpci_halt_input __P((void *));
135 static int cmpci_getdev __P((void *, struct audio_device *));
136 static int cmpci_set_port __P((void *, mixer_ctrl_t *));
137 static int cmpci_get_port __P((void *, mixer_ctrl_t *));
138 static int cmpci_query_devinfo __P((void *, mixer_devinfo_t *));
139 static void *cmpci_allocm __P((void *, int, size_t, int, int));
140 static void cmpci_freem __P((void *, void *, int));
141 static size_t cmpci_round_buffersize __P((void *, int, size_t));
142 static paddr_t cmpci_mappage __P((void *, void *, off_t, int));
143 static int cmpci_get_props __P((void *));
144 static int cmpci_trigger_output __P((void *, void *, void *, int,
145                                      void (*)(void *), void *,
146                                      struct audio_params *));
147 static int cmpci_trigger_input __P((void *, void *, void *, int,
148                                     void (*)(void *), void *,
149                                     struct audio_params *));
150 
151 static struct audio_hw_if cmpci_hw_if = {
152 	cmpci_open,		/* open */
153 	cmpci_close,		/* close */
154 	NULL,			/* drain */
155 	cmpci_query_encoding,	/* query_encoding */
156 	cmpci_set_params,	/* set_params */
157 	cmpci_round_blocksize,	/* round_blocksize */
158 	NULL,			/* commit_settings */
159 	NULL,			/* init_output */
160 	NULL,			/* init_input */
161 	NULL,			/* start_output */
162 	NULL,			/* start_input */
163 	cmpci_halt_output,	/* halt_output */
164 	cmpci_halt_input,	/* halt_input */
165 	NULL,			/* speaker_ctl */
166 	cmpci_getdev,		/* getdev */
167 	NULL,			/* setfd */
168 	cmpci_set_port,		/* set_port */
169 	cmpci_get_port,		/* get_port */
170 	cmpci_query_devinfo,	/* query_devinfo */
171 	cmpci_allocm,		/* allocm */
172 	cmpci_freem,		/* freem */
173 	cmpci_round_buffersize,/* round_buffersize */
174 	cmpci_mappage,		/* mappage */
175 	cmpci_get_props,	/* get_props */
176 	cmpci_trigger_output,	/* trigger_output */
177 	cmpci_trigger_input	/* trigger_input */
178 };
179 
180 
181 /*
182  * Low-level HW interface
183  */
184 
185 /* mixer register read/write */
186 static __inline uint8_t
187 cmpci_mixerreg_read(sc, no)
188 	struct cmpci_softc *sc;
189 	uint8_t no;
190 {
191 	uint8_t ret;
192 
193 	bus_space_write_1(sc->sc_iot, sc->sc_ioh, CMPCI_REG_SBADDR, no);
194 	delay(10);
195 	ret = bus_space_read_1(sc->sc_iot, sc->sc_ioh, CMPCI_REG_SBDATA);
196 	delay(10);
197 	return ret;
198 }
199 
200 static __inline void
201 cmpci_mixerreg_write(sc, no, val)
202 	struct cmpci_softc *sc;
203 	uint8_t no, val;
204 {
205 	bus_space_write_1(sc->sc_iot, sc->sc_ioh, CMPCI_REG_SBADDR, no);
206 	delay(10);
207 	bus_space_write_1(sc->sc_iot, sc->sc_ioh, CMPCI_REG_SBDATA, val);
208 	delay(10);
209 }
210 
211 
212 /* register partial write */
213 static __inline void
214 cmpci_reg_partial_write_4(sc, no, shift, mask, val)
215 	struct cmpci_softc *sc;
216 	int no, shift;
217 	uint32_t mask, val;
218 {
219 	bus_space_write_4(sc->sc_iot, sc->sc_ioh, no,
220 	    (val<<shift) |
221 	    (bus_space_read_4(sc->sc_iot, sc->sc_ioh, no) & ~(mask<<shift)));
222 	delay(10);
223 }
224 
225 /* register set/clear bit */
226 static __inline void
227 cmpci_reg_set_4(sc, no, mask)
228 	struct cmpci_softc *sc;
229 	int no;
230 	uint32_t mask;
231 {
232 	bus_space_write_4(sc->sc_iot, sc->sc_ioh, no,
233             (bus_space_read_4(sc->sc_iot, sc->sc_ioh, no) | mask));
234 	delay(10);
235 }
236 
237 static __inline void
238 cmpci_reg_clear_4(sc, no, mask)
239 	struct cmpci_softc *sc;
240 	int no;
241 	uint32_t mask;
242 {
243 	bus_space_write_4(sc->sc_iot, sc->sc_ioh, no,
244             (bus_space_read_4(sc->sc_iot, sc->sc_ioh, no) & ~mask));
245 	delay(10);
246 }
247 
248 
249 /* rate */
250 static struct {
251 	int rate;
252 	int divider;
253 } cmpci_rate_table[CMPCI_REG_NUMRATE] = {
254 #define _RATE(n) { n, CMPCI_REG_RATE_ ## n }
255 	_RATE(5512),
256 	_RATE(8000),
257 	_RATE(11025),
258 	_RATE(16000),
259 	_RATE(22050),
260 	_RATE(32000),
261 	_RATE(44100),
262 	_RATE(48000)
263 #undef  _RATE
264 };
265 
266 static int
267 cmpci_rate_to_index(rate)
268 	int rate;
269 {
270 	int i;
271 
272 	for (i = 0; i < CMPCI_REG_NUMRATE - 2; i++)
273 		if (rate <=
274 		    (cmpci_rate_table[i].rate+cmpci_rate_table[i+1].rate) / 2)
275 			return i;
276 	return i;  /* 48000 */
277 }
278 
279 static __inline int
280 cmpci_index_to_rate(index)
281 	int index;
282 {
283 	return cmpci_rate_table[index].rate;
284 }
285 
286 static __inline int
287 cmpci_index_to_divider(index)
288 	int index;
289 {
290 	return cmpci_rate_table[index].divider;
291 }
292 
293 
294 /*
295  * interface to configure the device.
296  */
297 
298 static int
299 cmpci_match(parent, match, aux)
300 	struct device *parent;
301 	struct cfdata *match;
302 	void *aux;
303 {
304 	struct pci_attach_args *pa = (struct pci_attach_args *)aux;
305 
306 	if ( PCI_VENDOR(pa->pa_id) == PCI_VENDOR_CMEDIA &&
307 	     (PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_CMEDIA_CMI8338A ||
308 	      PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_CMEDIA_CMI8338B ||
309 	      PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_CMEDIA_CMI8738) )
310 		return 1;
311 
312 	return 0;
313 }
314 
315 static void
316 cmpci_attach(parent, self, aux)
317 	struct device *parent, *self;
318 	void *aux;
319 {
320 	struct cmpci_softc *sc = (struct cmpci_softc *)self;
321 	struct pci_attach_args *pa = (struct pci_attach_args *)aux;
322 	pci_intr_handle_t ih;
323 	char const *strintr;
324 	int i, v;
325 
326 	sc->sc_revision = PCI_REVISION(pa->pa_class);
327 	sc->sc_model    = PCI_PRODUCT(pa->pa_id);
328 	switch (sc->sc_model) {
329 	case PCI_PRODUCT_CMEDIA_CMI8338A:
330 		printf(": CMI8338A PCI Audio Device\n");
331 		break;
332 	case PCI_PRODUCT_CMEDIA_CMI8338B:
333 		printf(": CMI8338B PCI Audio Device\n");
334 		break;
335 	case PCI_PRODUCT_CMEDIA_CMI8738:
336 		printf(": CMI8738 PCI Audio Device\n");
337 		break;
338 	}
339 
340 	/* map I/O space */
341 	if (pci_mapreg_map(pa, CMPCI_PCI_IOBASEREG, PCI_MAPREG_TYPE_IO, 0,
342                 &sc->sc_iot, &sc->sc_ioh, NULL, NULL)) {
343 		printf("%s: failed to map I/O space\n", sc->sc_dev.dv_xname);
344 		return;
345 	}
346 
347 	/* interrupt */
348 	if (pci_intr_map(pa, &ih)) {
349 		printf("%s: failed to map interrupt\n", sc->sc_dev.dv_xname);
350 		return;
351 	}
352 	strintr = pci_intr_string(pa->pa_pc, ih);
353 	sc->sc_ih=pci_intr_establish(pa->pa_pc, ih, IPL_AUDIO, cmpci_intr, sc);
354 	if (sc->sc_ih == NULL) {
355 		printf("%s: failed to establish interrupt",
356 		    sc->sc_dev.dv_xname);
357 		if (strintr != NULL)
358 			printf(" at %s", strintr);
359 		printf("\n");
360 		return;
361 	}
362 	printf("%s: interrupting at %s\n", sc->sc_dev.dv_xname, strintr);
363 
364 	sc->sc_dmat = pa->pa_dmat;
365 
366 	audio_attach_mi(&cmpci_hw_if, sc, &sc->sc_dev);
367 
368 	cmpci_mixerreg_write(sc, CMPCI_SB16_MIXER_RESET, 0);
369 	cmpci_mixerreg_write(sc, CMPCI_SB16_MIXER_ADCMIX_L, 0);
370 	cmpci_mixerreg_write(sc, CMPCI_SB16_MIXER_ADCMIX_R, 0);
371 	cmpci_mixerreg_write(sc, CMPCI_SB16_MIXER_OUTMIX,
372 	    CMPCI_SB16_SW_CD|CMPCI_SB16_SW_MIC | CMPCI_SB16_SW_LINE);
373 	for (i = 0; i < CMPCI_NDEVS; i++) {
374 		switch(i) {
375 		case CMPCI_MIC_VOL:
376 		case CMPCI_LINE_IN_VOL:
377 			v = 0;
378 			break;
379 		case CMPCI_BASS:
380 		case CMPCI_TREBLE:
381 			v = CMPCI_ADJUST_GAIN(sc, AUDIO_MAX_GAIN / 2);
382 			break;
383 		case CMPCI_CD_IN_MUTE:
384 		case CMPCI_MIC_IN_MUTE:
385 		case CMPCI_LINE_IN_MUTE:
386 		case CMPCI_FM_IN_MUTE:
387 		case CMPCI_CD_SWAP:
388 		case CMPCI_MIC_SWAP:
389 		case CMPCI_LINE_SWAP:
390 		case CMPCI_FM_SWAP:
391 			v = 0;
392 			break;
393 		case CMPCI_CD_OUT_MUTE:
394 		case CMPCI_MIC_OUT_MUTE:
395 		case CMPCI_LINE_OUT_MUTE:
396 			v = 1;
397 			break;
398 		default:
399 			v = CMPCI_ADJUST_GAIN(sc, AUDIO_MAX_GAIN / 2);
400 		}
401 		sc->gain[i][CMPCI_LEFT] = sc->gain[i][CMPCI_RIGHT] = v;
402 		cmpci_set_mixer_gain(sc, i);
403 	}
404 }
405 
406 
407 static int
408 cmpci_intr(handle)
409 	void *handle;
410 {
411 	struct cmpci_softc *sc = handle;
412 	uint32_t intrstat;
413 
414 	intrstat = bus_space_read_4(sc->sc_iot, sc->sc_ioh,
415 	    CMPCI_REG_INTR_STATUS);
416 	delay(10);
417 
418 	if (!(intrstat & CMPCI_REG_ANY_INTR))
419 		return 0;
420 
421 	/* disable and reset intr */
422 	if (intrstat & CMPCI_REG_CH0_INTR)
423 		cmpci_reg_clear_4(sc, CMPCI_REG_INTR_CTRL,
424 		   CMPCI_REG_CH0_INTR_ENABLE);
425 	if (intrstat & CMPCI_REG_CH1_INTR)
426 		cmpci_reg_clear_4(sc, CMPCI_REG_INTR_CTRL,
427 		    CMPCI_REG_CH1_INTR_ENABLE);
428 
429 	if (intrstat & CMPCI_REG_CH0_INTR) {
430 		if (sc->sc_play.intr != NULL)
431 			(*sc->sc_play.intr)(sc->sc_play.intr_arg);
432 	}
433 	if (intrstat & CMPCI_REG_CH1_INTR) {
434 		if (sc->sc_rec.intr != NULL)
435 			(*sc->sc_rec.intr)(sc->sc_rec.intr_arg);
436 	}
437 
438 	/* enable intr */
439 	if (intrstat & CMPCI_REG_CH0_INTR)
440 		cmpci_reg_set_4(sc, CMPCI_REG_INTR_CTRL,
441 		    CMPCI_REG_CH0_INTR_ENABLE);
442 	if (intrstat & CMPCI_REG_CH1_INTR)
443 		cmpci_reg_set_4(sc, CMPCI_REG_INTR_CTRL,
444 		    CMPCI_REG_CH1_INTR_ENABLE);
445 
446 	return 0;
447 }
448 
449 
450 /* open/close */
451 static int
452 cmpci_open(handle, flags)
453 	void *handle;
454 	int flags;
455 {
456 #if 0
457 	struct cmpci_softc *sc = handle;
458 #endif
459 
460 	return 0;
461 }
462 
463 static void
464 cmpci_close(handle)
465 	void *handle;
466 {
467 }
468 
469 static int
470 cmpci_query_encoding(handle, fp)
471 	void *handle;
472 	struct audio_encoding *fp;
473 {
474 #if 0
475 	struct cmpci_softc *sc = handle;
476 #endif
477 
478 	switch (fp->index) {
479 	case 0:
480 		strcpy(fp->name, AudioEulinear);
481 		fp->encoding = AUDIO_ENCODING_ULINEAR;
482 		fp->precision = 8;
483 		fp->flags = AUDIO_ENCODINGFLAG_EMULATED;
484 		break;
485 	case 1:
486 		strcpy(fp->name, AudioEmulaw);
487 		fp->encoding = AUDIO_ENCODING_ULAW;
488 		fp->precision = 8;
489 		fp->flags = AUDIO_ENCODINGFLAG_EMULATED;
490 		break;
491 	case 2:
492 		strcpy(fp->name, AudioEalaw);
493 		fp->encoding = AUDIO_ENCODING_ALAW;
494 		fp->precision = 8;
495 		fp->flags = AUDIO_ENCODINGFLAG_EMULATED;
496 		break;
497 	case 3:
498 		strcpy(fp->name, AudioEslinear);
499 		fp->encoding = AUDIO_ENCODING_SLINEAR;
500 		fp->precision = 8;
501 		fp->flags = 0;
502 		break;
503 	case 4:
504 		strcpy(fp->name, AudioEslinear_le);
505 		fp->encoding = AUDIO_ENCODING_SLINEAR_LE;
506 		fp->precision = 16;
507 		fp->flags = 0;
508 		break;
509 	case 5:
510 		strcpy(fp->name, AudioEulinear_le);
511 		fp->encoding = AUDIO_ENCODING_ULINEAR_LE;
512 		fp->precision = 16;
513 		fp->flags = AUDIO_ENCODINGFLAG_EMULATED;
514 		break;
515 	case 6:
516 		strcpy(fp->name, AudioEslinear_be);
517 		fp->encoding = AUDIO_ENCODING_SLINEAR_BE;
518 		fp->precision = 16;
519 		fp->flags = AUDIO_ENCODINGFLAG_EMULATED;
520 		break;
521 	case 7:
522 		strcpy(fp->name, AudioEulinear_be);
523 		fp->encoding = AUDIO_ENCODING_ULINEAR_BE;
524 		fp->precision = 16;
525 		fp->flags = AUDIO_ENCODINGFLAG_EMULATED;
526 		break;
527 	default:
528 		return EINVAL;
529 	}
530 	return 0;
531 }
532 
533 
534 static int
535 cmpci_set_params(handle, setmode, usemode, play, rec)
536 	void *handle;
537 	int setmode, usemode;
538 	struct audio_params *play, *rec;
539 {
540 	int i;
541 	struct cmpci_softc *sc = handle;
542 
543 	for (i = 0; i < 2; i++) {
544 		int md_format;
545 		int md_divide;
546 		int md_index;
547 		int mode;
548 		struct audio_params *p;
549 
550 		switch (i) {
551 		case 0:
552 			mode = AUMODE_PLAY;
553 			p = play;
554 			break;
555 		case 1:
556 			mode = AUMODE_RECORD;
557 			p = rec;
558 			break;
559 		}
560 
561 		if (!(setmode & mode))
562 			continue;
563 
564 
565 		/* format */
566 		p->sw_code = NULL;
567 		switch ( p->channels ) {
568 		case 1:
569 			md_format = CMPCI_REG_FORMAT_MONO;
570 			break;
571 		case 2:
572 			md_format = CMPCI_REG_FORMAT_STEREO;
573 			break;
574 		default:
575 			return (EINVAL);
576 		}
577 		switch (p->encoding) {
578 		case AUDIO_ENCODING_ULAW:
579 			if (p->precision != 8)
580 				return (EINVAL);
581 			if (mode & AUMODE_PLAY) {
582 				p->factor = 2;
583 				p->sw_code = mulaw_to_slinear16_le;
584 				md_format |= CMPCI_REG_FORMAT_16BIT;
585 			} else {
586 				p->sw_code = ulinear8_to_mulaw;
587 				md_format |= CMPCI_REG_FORMAT_8BIT;
588 			}
589 			break;
590 		case AUDIO_ENCODING_ALAW:
591 			if (p->precision != 8)
592 				return (EINVAL);
593 			if (mode & AUMODE_PLAY) {
594 				p->factor = 2;
595 				p->sw_code = alaw_to_slinear16_le;
596 				md_format |= CMPCI_REG_FORMAT_16BIT;
597 			} else {
598 				p->sw_code = ulinear8_to_alaw;
599 				md_format |= CMPCI_REG_FORMAT_8BIT;
600 			}
601 			break;
602 		case AUDIO_ENCODING_SLINEAR_LE:
603 			switch (p->precision) {
604 			case 8:
605 				p->sw_code = change_sign8;
606 				md_format |= CMPCI_REG_FORMAT_8BIT;
607 				break;
608 			case 16:
609 				md_format |= CMPCI_REG_FORMAT_16BIT;
610 				break;
611 			default:
612 				return (EINVAL);
613 			}
614 			break;
615 		case AUDIO_ENCODING_SLINEAR_BE:
616 			switch (p->precision) {
617 			case 8:
618 				md_format |= CMPCI_REG_FORMAT_8BIT;
619 				p->sw_code = change_sign8;
620 				break;
621 			case 16:
622 				md_format |= CMPCI_REG_FORMAT_16BIT;
623 				p->sw_code = swap_bytes;
624 				break;
625 			default:
626 				return (EINVAL);
627 			}
628 			break;
629 		case AUDIO_ENCODING_ULINEAR_LE:
630 			switch (p->precision) {
631 			case 8:
632 				md_format |= CMPCI_REG_FORMAT_8BIT;
633 				break;
634 			case 16:
635 				md_format |= CMPCI_REG_FORMAT_16BIT;
636 				p->sw_code = change_sign16_le;
637 				break;
638 			default:
639 				return (EINVAL);
640 			}
641 			break;
642 		case AUDIO_ENCODING_ULINEAR_BE:
643 			switch (p->precision) {
644 			case 8:
645 				md_format |= CMPCI_REG_FORMAT_8BIT;
646 				break;
647 			case 16:
648 				md_format |= CMPCI_REG_FORMAT_16BIT;
649 				if (mode & AUMODE_PLAY)
650 					p->sw_code =swap_bytes_change_sign16_le;
651 				else
652 					p->sw_code =change_sign16_swap_bytes_le;
653 				break;
654 			default:
655 				return (EINVAL);
656 			}
657 			break;
658 		default:
659 			return (EINVAL);
660 		}
661 		if (mode & AUMODE_PLAY)
662 			cmpci_reg_partial_write_4(sc,
663 			   CMPCI_REG_CHANNEL_FORMAT, CMPCI_REG_CH0_FORMAT_SHIFT,
664                            CMPCI_REG_CH0_FORMAT_MASK, md_format);
665 		else
666 			cmpci_reg_partial_write_4(sc,
667                            CMPCI_REG_CHANNEL_FORMAT, CMPCI_REG_CH1_FORMAT_SHIFT,
668 			   CMPCI_REG_CH1_FORMAT_MASK, md_format);
669 		/* sample rate */
670 		md_index = cmpci_rate_to_index(p->sample_rate);
671 		md_divide = cmpci_index_to_divider(md_index);
672 		p->sample_rate = cmpci_index_to_rate(md_index);
673 #if 0
674 		DPRINTF(("%s: sample:%d, divider=%d\n",
675 			 sc->sc_dev.dv_xname, (int)p->sample_rate, md_divide));
676 #endif
677 		if (mode & AUMODE_PLAY) {
678 			cmpci_reg_partial_write_4(sc,
679 			    CMPCI_REG_FUNC_1, CMPCI_REG_DAC_FS_SHIFT,
680 			    CMPCI_REG_DAC_FS_MASK, md_divide);
681 #ifdef CMPCI_SPDIF_SUPPORT
682 			switch (md_divide) {
683 			case CMPCI_REG_RATE_44100:
684 				cmpci_reg_clear_4(sc, CMPCI_REG_MISC,
685 				    CMPCI_REG_SPDIF_48K);
686 				cmpci_reg_clear_4(sc, CMPCI_REG_FUNC_1,
687 				    CMPCI_REG_SPDIF_LOOP);
688 				cmpci_reg_set_4(sc, CMPCI_REG_FUNC_1,
689 				    CMPCI_REG_SPDIF0_ENABLE);
690 				break;
691 			case CMPCI_REG_RATE_48000:
692 				cmpci_reg_set_4(sc, CMPCI_REG_MISC,
693 				    CMPCI_REG_SPDIF_48K);
694 				cmpci_reg_clear_4(sc, CMPCI_REG_FUNC_1,
695 				    CMPCI_REG_SPDIF_LOOP);
696 				cmpci_reg_set_4(sc, CMPCI_REG_FUNC_1,
697 				    CMPCI_REG_SPDIF0_ENABLE);
698 				break;
699 			default:
700 				cmpci_reg_clear_4(sc, CMPCI_REG_FUNC_1,
701 				    CMPCI_REG_SPDIF0_ENABLE);
702 				cmpci_reg_set_4(sc, CMPCI_REG_FUNC_1,
703 				    CMPCI_REG_SPDIF_LOOP);
704 			}
705 #endif
706 		} else {
707 			cmpci_reg_partial_write_4(sc,
708 			    CMPCI_REG_FUNC_1, CMPCI_REG_ADC_FS_SHIFT,
709 			    CMPCI_REG_ADC_FS_MASK, md_divide);
710 #ifdef CMPCI_SPDIF_SUPPORT
711 			if (sc->in_mask & CMPCI_SPDIF_IN) {
712 				switch (md_divide) {
713 				case CMPCI_REG_RATE_44100:
714 					cmpci_reg_set_4(sc, CMPCI_REG_FUNC_1,
715 					    CMPCI_REG_SPDIF1_ENABLE);
716 					break;
717 				default:
718 					return EINVAL;
719 				}
720 			} else
721 				cmpci_reg_clear_4(sc,
722 				    CMPCI_REG_FUNC_1, CMPCI_REG_SPDIF1_ENABLE);
723 #endif
724 		}
725 	}
726 	return 0;
727 }
728 
729 /* ARGSUSED */
730 static int
731 cmpci_round_blocksize(handle, block)
732 	void *handle;
733 	int block;
734 {
735 	return (block & -4);
736 }
737 
738 static int
739 cmpci_halt_output(handle)
740     void *handle;
741 {
742 	struct cmpci_softc *sc = handle;
743 	int s;
744 
745 	s = splaudio();
746 	sc->sc_play.intr = NULL;
747 	cmpci_reg_clear_4(sc, CMPCI_REG_INTR_CTRL, CMPCI_REG_CH0_INTR_ENABLE);
748 	cmpci_reg_clear_4(sc, CMPCI_REG_FUNC_0, CMPCI_REG_CH0_ENABLE);
749 	/* wait for reset DMA */
750 	cmpci_reg_set_4(sc, CMPCI_REG_FUNC_0, CMPCI_REG_CH0_RESET);
751 	delay(10);
752 	cmpci_reg_clear_4(sc, CMPCI_REG_FUNC_0, CMPCI_REG_CH0_RESET);
753 	splx(s);
754 
755 	return 0;
756 }
757 
758 static int
759 cmpci_halt_input(handle)
760 	void *handle;
761 {
762 	struct cmpci_softc *sc = handle;
763 	int s;
764 
765 	s = splaudio();
766 	sc->sc_rec.intr = NULL;
767 	cmpci_reg_clear_4(sc, CMPCI_REG_INTR_CTRL, CMPCI_REG_CH1_INTR_ENABLE);
768 	cmpci_reg_clear_4(sc, CMPCI_REG_FUNC_0, CMPCI_REG_CH1_ENABLE);
769 	/* wait for reset DMA */
770 	cmpci_reg_set_4(sc, CMPCI_REG_FUNC_0, CMPCI_REG_CH1_RESET);
771 	delay(10);
772 	cmpci_reg_clear_4(sc, CMPCI_REG_FUNC_0, CMPCI_REG_CH1_RESET);
773 	splx(s);
774 
775 	return 0;
776 }
777 
778 
779 /* get audio device information */
780 static int
781 cmpci_getdev(handle, ad)
782         void *handle;
783         struct audio_device *ad;
784 {
785 	struct cmpci_softc *sc = handle;
786 
787 	strncpy(ad->name, "CMI PCI Audio", sizeof(ad->name));
788 	snprintf(ad->version, sizeof(ad->version), "0x%02x", sc->sc_revision);
789 	switch (sc->sc_model) {
790 	case PCI_PRODUCT_CMEDIA_CMI8338A:
791 		strncpy(ad->config, "CMI8338A", sizeof(ad->config));
792 		break;
793 	case PCI_PRODUCT_CMEDIA_CMI8338B:
794 		strncpy(ad->config, "CMI8338B", sizeof(ad->config));
795 		break;
796 	case PCI_PRODUCT_CMEDIA_CMI8738:
797 		strncpy(ad->config, "CMI8738", sizeof(ad->config));
798 		break;
799 	default:
800 		strncpy(ad->config, "unknown", sizeof(ad->config));
801 	}
802 
803 	return 0;
804 }
805 
806 
807 /* mixer device information */
808 int
809 cmpci_query_devinfo(handle, dip)
810 	void *handle;
811 	mixer_devinfo_t *dip;
812 {
813 #if 0
814 	struct cmpci_softc *sc = handle;
815 #endif
816 
817 	switch (dip->index) {
818 	case CMPCI_MASTER_VOL:
819 		dip->type = AUDIO_MIXER_VALUE;
820 		dip->mixer_class = CMPCI_OUTPUT_CLASS;
821 		dip->prev = dip->next = AUDIO_MIXER_LAST;
822 		strcpy(dip->label.name, AudioNmaster);
823 		dip->un.v.num_channels = 2;
824 		strcpy(dip->un.v.units.name, AudioNvolume);
825 		return 0;
826 	case CMPCI_FM_VOL:
827 		dip->type = AUDIO_MIXER_VALUE;
828 		dip->mixer_class = CMPCI_INPUT_CLASS;
829 		dip->prev = AUDIO_MIXER_LAST;
830 		dip->next = CMPCI_FM_IN_MUTE;
831 		strcpy(dip->label.name, AudioNfmsynth);
832 		dip->un.v.num_channels = 2;
833 		strcpy(dip->un.v.units.name, AudioNvolume);
834 		return 0;
835 	case CMPCI_CD_VOL:
836 		dip->type = AUDIO_MIXER_VALUE;
837 		dip->mixer_class = CMPCI_INPUT_CLASS;
838 		dip->prev = AUDIO_MIXER_LAST;
839 		dip->next = CMPCI_CD_IN_MUTE;
840 		strcpy(dip->label.name, AudioNcd);
841 		dip->un.v.num_channels = 2;
842 		strcpy(dip->un.v.units.name, AudioNvolume);
843 		return 0;
844 	case CMPCI_VOICE_VOL:
845 		dip->type = AUDIO_MIXER_VALUE;
846 		dip->mixer_class = CMPCI_OUTPUT_CLASS;
847 		dip->prev = AUDIO_MIXER_LAST;
848 		dip->next = AUDIO_MIXER_LAST;
849 		strcpy(dip->label.name, AudioNdac);
850 		dip->un.v.num_channels = 2;
851 		strcpy(dip->un.v.units.name, AudioNvolume);
852 		return 0;
853 	case CMPCI_OUTPUT_CLASS:
854 		dip->type = AUDIO_MIXER_CLASS;
855 		dip->mixer_class = CMPCI_INPUT_CLASS;
856 		dip->next = dip->prev = AUDIO_MIXER_LAST;
857 		strcpy(dip->label.name, AudioCoutputs);
858 		return 0;
859 	case CMPCI_MIC_VOL:
860 		dip->type = AUDIO_MIXER_VALUE;
861 		dip->mixer_class = CMPCI_INPUT_CLASS;
862 		dip->prev = AUDIO_MIXER_LAST;
863 		dip->next = CMPCI_MIC_IN_MUTE;
864 		strcpy(dip->label.name, AudioNmicrophone);
865 		dip->un.v.num_channels = 1;
866 		strcpy(dip->un.v.units.name, AudioNvolume);
867 		return 0;
868 	case CMPCI_LINE_IN_VOL:
869 		dip->type = AUDIO_MIXER_VALUE;
870 		dip->mixer_class = CMPCI_INPUT_CLASS;
871 		dip->prev = AUDIO_MIXER_LAST;
872 		dip->next = CMPCI_LINE_IN_MUTE;
873 		strcpy(dip->label.name, AudioNline);
874 		dip->un.v.num_channels = 2;
875 		strcpy(dip->un.v.units.name, AudioNvolume);
876 		return 0;
877 	case CMPCI_RECORD_SOURCE:
878 		dip->mixer_class = CMPCI_RECORD_CLASS;
879 		dip->prev = dip->next = AUDIO_MIXER_LAST;
880 		strcpy(dip->label.name, AudioNsource);
881 		dip->type = AUDIO_MIXER_SET;
882 #ifdef CMPCI_SPDIF_SUPPORT
883 		dip->un.s.num_mem = 5;
884 #else
885 		dip->un.s.num_mem = 4;
886 #endif
887 		strcpy(dip->un.s.member[0].label.name, AudioNmicrophone);
888 		dip->un.s.member[0].mask = 1 << CMPCI_MIC_VOL;
889 		strcpy(dip->un.s.member[1].label.name, AudioNcd);
890 		dip->un.s.member[1].mask = 1 << CMPCI_CD_VOL;
891 		strcpy(dip->un.s.member[2].label.name, AudioNline);
892 		dip->un.s.member[2].mask = 1 << CMPCI_LINE_IN_VOL;
893 		strcpy(dip->un.s.member[3].label.name, AudioNfmsynth);
894 		dip->un.s.member[3].mask = 1 << CMPCI_FM_VOL;
895 #ifdef CMPCI_SPDIF_SUPPORT
896 		strcpy(dip->un.s.member[4].label.name, CmpciNspdif);
897 		dip->un.s.member[4].mask = 1 << CMPCI_SPDIF_IN;
898 #endif
899 		return 0;
900 	case CMPCI_BASS:
901 		dip->prev = dip->next = AUDIO_MIXER_LAST;
902 		strcpy(dip->label.name, AudioNbass);
903 		dip->type = AUDIO_MIXER_VALUE;
904 		dip->mixer_class = CMPCI_EQUALIZATION_CLASS;
905 		dip->un.v.num_channels = 2;
906 		strcpy(dip->un.v.units.name, AudioNbass);
907 		return 0;
908 	case CMPCI_TREBLE:
909 		dip->prev = dip->next = AUDIO_MIXER_LAST;
910 		strcpy(dip->label.name, AudioNtreble);
911 		dip->type = AUDIO_MIXER_VALUE;
912 		dip->mixer_class = CMPCI_EQUALIZATION_CLASS;
913 		dip->un.v.num_channels = 2;
914 		strcpy(dip->un.v.units.name, AudioNtreble);
915 		return 0;
916 	case CMPCI_RECORD_CLASS:
917 		dip->type = AUDIO_MIXER_CLASS;
918 		dip->mixer_class = CMPCI_RECORD_CLASS;
919 		dip->next = dip->prev = AUDIO_MIXER_LAST;
920 		strcpy(dip->label.name, AudioCrecord);
921 		return 0;
922 	case CMPCI_INPUT_CLASS:
923 		dip->type = AUDIO_MIXER_CLASS;
924 		dip->mixer_class = CMPCI_INPUT_CLASS;
925 		dip->next = dip->prev = AUDIO_MIXER_LAST;
926 		strcpy(dip->label.name, AudioCinputs);
927 		return 0;
928 	case CMPCI_PCSPEAKER:
929 		dip->type = AUDIO_MIXER_VALUE;
930 		dip->mixer_class = CMPCI_INPUT_CLASS;
931 		dip->prev = dip->next = AUDIO_MIXER_LAST;
932 		strcpy(dip->label.name, "pc_speaker");
933 		dip->un.v.num_channels = 1;
934 		strcpy(dip->un.v.units.name, AudioNvolume);
935 		return 0;
936 	case CMPCI_INPUT_GAIN:
937 		dip->type = AUDIO_MIXER_VALUE;
938 		dip->mixer_class = CMPCI_INPUT_CLASS;
939 		dip->prev = dip->next = AUDIO_MIXER_LAST;
940 		strcpy(dip->label.name, AudioNinput);
941 		dip->un.v.num_channels = 2;
942 		strcpy(dip->un.v.units.name, AudioNvolume);
943 		return 0;
944 	case CMPCI_OUTPUT_GAIN:
945 		dip->type = AUDIO_MIXER_VALUE;
946 		dip->mixer_class = CMPCI_OUTPUT_CLASS;
947 		dip->prev = dip->next = AUDIO_MIXER_LAST;
948 		strcpy(dip->label.name, AudioNoutput);
949 		dip->un.v.num_channels = 2;
950 		strcpy(dip->un.v.units.name, AudioNvolume);
951 		return 0;
952 	case CMPCI_AGC:
953 		dip->type = AUDIO_MIXER_ENUM;
954 		dip->mixer_class = CMPCI_INPUT_CLASS;
955 		dip->prev = dip->next = AUDIO_MIXER_LAST;
956 		strcpy(dip->label.name, "agc");
957 		dip->un.e.num_mem = 2;
958 		strcpy(dip->un.e.member[0].label.name, AudioNoff);
959 		dip->un.e.member[0].ord = 0;
960 		strcpy(dip->un.e.member[1].label.name, AudioNon);
961 		dip->un.e.member[1].ord = 1;
962 		return 0;
963 	case CMPCI_EQUALIZATION_CLASS:
964 		dip->type = AUDIO_MIXER_CLASS;
965 		dip->mixer_class = CMPCI_EQUALIZATION_CLASS;
966 		dip->next = dip->prev = AUDIO_MIXER_LAST;
967 		strcpy(dip->label.name, AudioCequalization);
968 		return 0;
969 
970 	case CMPCI_CD_IN_MUTE:
971 		dip->prev = CMPCI_CD_VOL;
972 		dip->next = CMPCI_CD_SWAP;
973 		dip->mixer_class = CMPCI_INPUT_CLASS;
974 		goto mute;
975 	case CMPCI_MIC_IN_MUTE:
976 		dip->prev = CMPCI_MIC_VOL;
977 		dip->next = CMPCI_MIC_SWAP;
978 		dip->mixer_class = CMPCI_INPUT_CLASS;
979 		goto mute;
980 	case CMPCI_LINE_IN_MUTE:
981 		dip->prev = CMPCI_LINE_IN_VOL;
982 		dip->next = CMPCI_LINE_SWAP;
983 		dip->mixer_class = CMPCI_INPUT_CLASS;
984 		goto mute;
985 	case CMPCI_FM_IN_MUTE:
986 		dip->prev = CMPCI_FM_VOL;
987 		dip->next = CMPCI_FM_SWAP;
988 		dip->mixer_class = CMPCI_INPUT_CLASS;
989 		goto mute;
990 	case CMPCI_CD_SWAP:
991 		dip->prev = CMPCI_CD_IN_MUTE;
992 		dip->next = CMPCI_CD_OUT_MUTE;
993 		goto swap;
994 	case CMPCI_MIC_SWAP:
995 		dip->prev = CMPCI_MIC_IN_MUTE;
996 		dip->next = CMPCI_MIC_OUT_MUTE;
997 		goto swap;
998 	case CMPCI_LINE_SWAP:
999 		dip->prev = CMPCI_LINE_IN_MUTE;
1000 		dip->next = CMPCI_LINE_OUT_MUTE;
1001 		goto swap;
1002 	case CMPCI_FM_SWAP:
1003 		dip->prev = CMPCI_FM_IN_MUTE;
1004 		dip->next = AUDIO_MIXER_LAST;
1005 	swap:
1006 		dip->mixer_class = CMPCI_INPUT_CLASS;
1007 		strcpy(dip->label.name, AudioNswap);
1008 		goto mute1;
1009 
1010 	case CMPCI_CD_OUT_MUTE:
1011 		dip->prev = CMPCI_CD_SWAP;
1012 		dip->next = AUDIO_MIXER_LAST;
1013 		dip->mixer_class = CMPCI_OUTPUT_CLASS;
1014 		goto mute;
1015 	case CMPCI_MIC_OUT_MUTE:
1016 		dip->prev = CMPCI_MIC_SWAP;
1017 		dip->next = AUDIO_MIXER_LAST;
1018 		dip->mixer_class = CMPCI_OUTPUT_CLASS;
1019 		goto mute;
1020 	case CMPCI_LINE_OUT_MUTE:
1021 		dip->prev = CMPCI_LINE_SWAP;
1022 		dip->next = AUDIO_MIXER_LAST;
1023 		dip->mixer_class = CMPCI_OUTPUT_CLASS;
1024 	mute:
1025 		strcpy(dip->label.name, AudioNmute);
1026 	mute1:
1027 		dip->type = AUDIO_MIXER_ENUM;
1028 		dip->un.e.num_mem = 2;
1029 		strcpy(dip->un.e.member[0].label.name, AudioNoff);
1030 		dip->un.e.member[0].ord = 0;
1031 		strcpy(dip->un.e.member[1].label.name, AudioNon);
1032 		dip->un.e.member[1].ord = 1;
1033 		return 0;
1034 	}
1035 
1036 	return ENXIO;
1037 }
1038 
1039 static int
1040 cmpci_alloc_dmamem(sc, size, type, flags, r_addr)
1041 	struct cmpci_softc *sc;
1042 	size_t size;
1043 	int type, flags;
1044 	caddr_t *r_addr;
1045 {
1046 	int error = 0;
1047 	struct cmpci_dmanode *n;
1048 	int w;
1049 
1050 	n = malloc(sizeof(struct cmpci_dmanode), type, flags);
1051 	if (n == NULL) {
1052 		error = ENOMEM;
1053 		goto quit;
1054 	}
1055 
1056 	w = (flags & M_NOWAIT) ? BUS_DMA_NOWAIT : BUS_DMA_WAITOK;
1057 #define CMPCI_DMABUF_ALIGN    0x4
1058 #define CMPCI_DMABUF_BOUNDARY 0x0
1059 	n->cd_tag = sc->sc_dmat;
1060 	n->cd_size = size;
1061 	error = bus_dmamem_alloc(n->cd_tag, n->cd_size,
1062 	    CMPCI_DMABUF_ALIGN, CMPCI_DMABUF_BOUNDARY, n->cd_segs,
1063             sizeof(n->cd_segs)/sizeof(n->cd_segs[0]), &n->cd_nsegs, w);
1064 	if (error)
1065 		goto mfree;
1066 	error = bus_dmamem_map(n->cd_tag, n->cd_segs, n->cd_nsegs, n->cd_size,
1067 	    &n->cd_addr, w | BUS_DMA_COHERENT);
1068 	if (error)
1069 		goto dmafree;
1070 	error = bus_dmamap_create(n->cd_tag, n->cd_size, 1, n->cd_size, 0,
1071 	    w, &n->cd_map);
1072 	if (error)
1073 		goto unmap;
1074 	error = bus_dmamap_load(n->cd_tag, n->cd_map, n->cd_addr, n->cd_size,
1075 	    NULL, w);
1076 	if (error)
1077 		goto destroy;
1078 
1079 	n->cd_next = sc->sc_dmap;
1080 	sc->sc_dmap = n;
1081 	*r_addr = KVADDR(n);
1082 	return 0;
1083 
1084  destroy:
1085 	bus_dmamap_destroy(n->cd_tag, n->cd_map);
1086  unmap:
1087 	bus_dmamem_unmap(n->cd_tag, n->cd_addr, n->cd_size);
1088  dmafree:
1089 	bus_dmamem_free(n->cd_tag,
1090 			n->cd_segs, sizeof(n->cd_segs)/sizeof(n->cd_segs[0]));
1091  mfree:
1092 	free(n, type);
1093  quit:
1094 	return error;
1095 }
1096 
1097 static int
1098 cmpci_free_dmamem(sc, addr, type)
1099 	struct cmpci_softc *sc;
1100 	caddr_t addr;
1101 	int type;
1102 {
1103 	struct cmpci_dmanode **nnp;
1104 
1105 	for (nnp = &sc->sc_dmap; *nnp; nnp= &(*nnp)->cd_next) {
1106 		if ((*nnp)->cd_addr == addr) {
1107 			struct cmpci_dmanode *n = *nnp;
1108 			bus_dmamap_unload(n->cd_tag, n->cd_map);
1109 			bus_dmamap_destroy(n->cd_tag, n->cd_map);
1110 			bus_dmamem_unmap(n->cd_tag, n->cd_addr, n->cd_size);
1111 			bus_dmamem_free(n->cd_tag, n->cd_segs,
1112 			    sizeof(n->cd_segs)/sizeof(n->cd_segs[0]));
1113 			free(n, type);
1114 			return 0;
1115 		}
1116 	}
1117 	return -1;
1118 }
1119 
1120 static struct cmpci_dmanode *
1121 cmpci_find_dmamem(sc, addr)
1122 	struct cmpci_softc *sc;
1123 	caddr_t addr;
1124 {
1125 	struct cmpci_dmanode *p;
1126 	for (p=sc->sc_dmap; p; p=p->cd_next)
1127 		if ( KVADDR(p) == (void *)addr )
1128 			break;
1129 	return p;
1130 }
1131 
1132 
1133 #if 0
1134 static void
1135 cmpci_print_dmamem __P((struct cmpci_dmanode *p));
1136 static void
1137 cmpci_print_dmamem(p)
1138 	struct cmpci_dmanode *p;
1139 {
1140 	DPRINTF(("DMA at virt:%p, dmaseg:%p, mapseg:%p, size:%p\n",
1141 		 (void *)p->cd_addr, (void *)p->cd_segs[0].ds_addr,
1142 		 (void *)DMAADDR(p), (void *)p->cd_size));
1143 }
1144 #endif /* DEBUG */
1145 
1146 
1147 static void *
1148 cmpci_allocm(handle, direction, size, type, flags)
1149 	void  *handle;
1150 	int    direction;
1151 	size_t size;
1152 	int    type, flags;
1153 {
1154 	struct cmpci_softc *sc = handle;
1155 	caddr_t addr;
1156 
1157 	if (cmpci_alloc_dmamem(sc, size, type, flags, &addr))
1158 		return NULL;
1159 	return addr;
1160 }
1161 
1162 static void
1163 cmpci_freem(handle, addr, type)
1164 	void    *handle;
1165 	void    *addr;
1166 	int     type;
1167 {
1168 	struct cmpci_softc *sc = handle;
1169 
1170 	cmpci_free_dmamem(sc, addr, type);
1171 }
1172 
1173 
1174 #define MAXVAL 256
1175 static int
1176 cmpci_adjust(val, mask)
1177 	int val, mask;
1178 {
1179 	val += (MAXVAL - mask) >> 1;
1180 	if (val >= MAXVAL)
1181 		val = MAXVAL-1;
1182 	return val & mask;
1183 }
1184 
1185 static void
1186 cmpci_set_mixer_gain(sc, port)
1187 	struct cmpci_softc *sc;
1188 	int port;
1189 {
1190 	int src;
1191 
1192 	switch (port) {
1193 	case CMPCI_MIC_VOL:
1194 		src = CMPCI_SB16_MIXER_MIC;
1195 		break;
1196 	case CMPCI_MASTER_VOL:
1197 		src = CMPCI_SB16_MIXER_MASTER_L;
1198 		break;
1199 	case CMPCI_LINE_IN_VOL:
1200 		src = CMPCI_SB16_MIXER_LINE_L;
1201 		break;
1202 	case CMPCI_VOICE_VOL:
1203 		src = CMPCI_SB16_MIXER_VOICE_L;
1204 		break;
1205 	case CMPCI_FM_VOL:
1206 		src = CMPCI_SB16_MIXER_FM_L;
1207 		break;
1208 	case CMPCI_CD_VOL:
1209 		src = CMPCI_SB16_MIXER_CDDA_L;
1210 		break;
1211 	case CMPCI_INPUT_GAIN:
1212 		src = CMPCI_SB16_MIXER_INGAIN_L;
1213 		break;
1214 	case CMPCI_OUTPUT_GAIN:
1215 		src = CMPCI_SB16_MIXER_OUTGAIN_L;
1216 		break;
1217 	case CMPCI_TREBLE:
1218 		src = CMPCI_SB16_MIXER_TREBLE_L;
1219 		break;
1220 	case CMPCI_BASS:
1221 		src = CMPCI_SB16_MIXER_BASS_L;
1222 		break;
1223 	case CMPCI_PCSPEAKER:
1224 		cmpci_mixerreg_write(sc, CMPCI_SB16_MIXER_SPEAKER,
1225 		    sc->gain[port][CMPCI_LEFT]);
1226 		return;
1227 	default:
1228 		return;
1229 	}
1230 	cmpci_mixerreg_write(sc, src, sc->gain[port][CMPCI_LEFT]);
1231 	cmpci_mixerreg_write(sc, CMPCI_SB16_MIXER_L_TO_R(src),
1232 	    sc->gain[port][CMPCI_RIGHT]);
1233 }
1234 
1235 static int
1236 cmpci_set_in_ports(sc, mask)
1237 	struct cmpci_softc *sc;
1238 	int mask;
1239 {
1240 	int bitsl, bitsr;
1241 
1242 	if (mask & ~((1<<CMPCI_FM_VOL) | (1<<CMPCI_LINE_IN_VOL) |
1243 		     (1<<CMPCI_CD_VOL) | (1<<CMPCI_MIC_VOL)
1244 #ifdef CMPCI_SPDIF_SUPPORT
1245 		     | (1<<CMPCI_SPDIF_IN)
1246 #endif
1247 		))
1248 		return EINVAL;
1249 	bitsr = 0;
1250 	if (mask & (1<<CMPCI_FM_VOL))    bitsr |= CMPCI_SB16_MIXER_FM_SRC_R;
1251 	if (mask & (1<<CMPCI_LINE_IN_VOL)) bitsr |= CMPCI_SB16_MIXER_LINE_SRC_R;
1252 	if (mask & (1<<CMPCI_CD_VOL))      bitsr |= CMPCI_SB16_MIXER_CD_SRC_R;
1253 	bitsl = CMPCI_SB16_MIXER_SRC_R_TO_L(bitsr);
1254 	if (mask & (1<<CMPCI_MIC_VOL)) {
1255 		bitsl |= CMPCI_SB16_MIXER_MIC_SRC;
1256 		bitsr |= CMPCI_SB16_MIXER_MIC_SRC;
1257 	}
1258 	cmpci_mixerreg_write(sc, CMPCI_SB16_MIXER_ADCMIX_L, bitsl);
1259 	cmpci_mixerreg_write(sc, CMPCI_SB16_MIXER_ADCMIX_R, bitsr);
1260 
1261 	sc->in_mask = mask;
1262 
1263 	return 0;
1264 }
1265 
1266 static int
1267 cmpci_set_port(handle, cp)
1268 	void *handle;
1269 	mixer_ctrl_t *cp;
1270 {
1271 	struct cmpci_softc *sc = handle;
1272 	int lgain, rgain;
1273 	int mask, bits;
1274 	int lmask, rmask, lbits, rbits;
1275 	int mute, swap;
1276 
1277 	switch (cp->dev) {
1278 	case CMPCI_TREBLE:
1279 	case CMPCI_BASS:
1280 	case CMPCI_PCSPEAKER:
1281 	case CMPCI_INPUT_GAIN:
1282 	case CMPCI_OUTPUT_GAIN:
1283 	case CMPCI_MIC_VOL:
1284 	case CMPCI_LINE_IN_VOL:
1285 	case CMPCI_VOICE_VOL:
1286 	case CMPCI_FM_VOL:
1287 	case CMPCI_CD_VOL:
1288 	case CMPCI_MASTER_VOL:
1289 		if (cp->type != AUDIO_MIXER_VALUE)
1290 			return EINVAL;
1291 		switch (cp->dev) {
1292 		case CMPCI_MIC_VOL:
1293 			if (cp->un.value.num_channels != 1)
1294 				return EINVAL;
1295 
1296 			lgain = rgain =
1297 				CMPCI_ADJUST_MIC_GAIN(sc,
1298 				    cp->un.value.level[AUDIO_MIXER_LEVEL_MONO]);
1299 			break;
1300 		case CMPCI_PCSPEAKER:
1301 			if (cp->un.value.num_channels != 1)
1302 				return EINVAL;
1303 			/* fall into */
1304 		case CMPCI_INPUT_GAIN:
1305 		case CMPCI_OUTPUT_GAIN:
1306 			lgain = rgain =	CMPCI_ADJUST_2_GAIN(sc,
1307 			    cp->un.value.level[AUDIO_MIXER_LEVEL_MONO]);
1308 			break;
1309 		default:
1310 			switch (cp->un.value.num_channels) {
1311 			case 1:
1312 				lgain = rgain = CMPCI_ADJUST_GAIN(sc,
1313 				    cp->un.value.level[AUDIO_MIXER_LEVEL_MONO]);
1314 				break;
1315 			case 2:
1316 				lgain =	CMPCI_ADJUST_GAIN(sc,
1317 				    cp->un.value.level[AUDIO_MIXER_LEVEL_LEFT]);
1318 				rgain = CMPCI_ADJUST_GAIN(sc,
1319 				   cp->un.value.level[AUDIO_MIXER_LEVEL_RIGHT]);
1320 				break;
1321 			default:
1322 				return EINVAL;
1323 			}
1324 			break;
1325 		}
1326 		sc->gain[cp->dev][CMPCI_LEFT]  = lgain;
1327 		sc->gain[cp->dev][CMPCI_RIGHT] = rgain;
1328 
1329 		cmpci_set_mixer_gain(sc, cp->dev);
1330 		break;
1331 
1332 	case CMPCI_RECORD_SOURCE:
1333 		if (cp->type != AUDIO_MIXER_SET)
1334 			return EINVAL;
1335 #ifdef CMPCI_SPDIF_SUPPORT
1336 		if (cp->un.mask & (1<<CMPCI_SPDIF_IN))
1337 			cp->un.mask = 1<<CMPCI_SPDIF_IN;
1338 #endif
1339 		return cmpci_set_in_ports(sc, cp->un.mask);
1340 
1341 	case CMPCI_AGC:
1342 		cmpci_mixerreg_write(sc, CMPCI_SB16_MIXER_AGC, cp->un.ord & 1);
1343 		break;
1344 
1345 	case CMPCI_CD_OUT_MUTE:
1346 		mask = CMPCI_SB16_SW_CD;
1347 		goto omute;
1348 	case CMPCI_MIC_OUT_MUTE:
1349 		mask = CMPCI_SB16_SW_MIC;
1350 		goto omute;
1351 	case CMPCI_LINE_OUT_MUTE:
1352 		mask = CMPCI_SB16_SW_LINE;
1353 	omute:
1354 		if (cp->type != AUDIO_MIXER_ENUM)
1355 			return EINVAL;
1356 		bits = cmpci_mixerreg_read(sc, CMPCI_SB16_MIXER_OUTMIX);
1357 		sc->gain[cp->dev][CMPCI_LR] = cp->un.ord != 0;
1358 		if (cp->un.ord)
1359 			bits = bits & ~mask;
1360 		else
1361 			bits = bits | mask;
1362 		cmpci_mixerreg_write(sc, CMPCI_SB16_MIXER_OUTMIX, bits);
1363 		break;
1364 
1365 	case CMPCI_MIC_IN_MUTE:
1366 	case CMPCI_MIC_SWAP:
1367 		lmask = rmask = CMPCI_SB16_SW_MIC;
1368 		goto imute;
1369 	case CMPCI_CD_IN_MUTE:
1370 	case CMPCI_CD_SWAP:
1371 		lmask = CMPCI_SB16_SW_CD_L;
1372 		rmask = CMPCI_SB16_SW_CD_R;
1373 		goto imute;
1374 	case CMPCI_LINE_IN_MUTE:
1375 	case CMPCI_LINE_SWAP:
1376 		lmask = CMPCI_SB16_SW_LINE_L;
1377 		rmask = CMPCI_SB16_SW_LINE_R;
1378 		goto imute;
1379 	case CMPCI_FM_IN_MUTE:
1380 	case CMPCI_FM_SWAP:
1381 		lmask = CMPCI_SB16_SW_FM_L;
1382 		rmask = CMPCI_SB16_SW_FM_R;
1383 	imute:
1384 		if (cp->type != AUDIO_MIXER_ENUM)
1385 			return EINVAL;
1386 		mask = lmask | rmask;
1387 		lbits = cmpci_mixerreg_read(sc, CMPCI_SB16_MIXER_ADCMIX_L)
1388 		    & ~mask;
1389 		rbits = cmpci_mixerreg_read(sc, CMPCI_SB16_MIXER_ADCMIX_R)
1390 		    & ~mask;
1391 		sc->gain[cp->dev][CMPCI_LR] = cp->un.ord != 0;
1392 		if (CMPCI_IS_IN_MUTE(cp->dev)) {
1393 			mute = cp->dev;
1394 			swap = mute - CMPCI_CD_IN_MUTE + CMPCI_CD_SWAP;
1395 		} else {
1396 			swap = cp->dev;
1397 			mute = swap + CMPCI_CD_IN_MUTE - CMPCI_CD_SWAP;
1398 		}
1399 		if (sc->gain[swap][CMPCI_LR]) {
1400 			mask = lmask;
1401 			lmask = rmask;
1402 			rmask = mask;
1403 		}
1404 		if (!sc->gain[mute][CMPCI_LR]) {
1405 			lbits = lbits | lmask;
1406 			rbits = rbits | rmask;
1407 		}
1408 		cmpci_mixerreg_write(sc, CMPCI_SB16_MIXER_ADCMIX_L, lbits);
1409 		cmpci_mixerreg_write(sc, CMPCI_SB16_MIXER_ADCMIX_R, rbits);
1410 		break;
1411 
1412 	default:
1413 	    return EINVAL;
1414 	}
1415 
1416 	return 0;
1417 }
1418 
1419 static int
1420 cmpci_get_port(handle, cp)
1421 	void *handle;
1422 	mixer_ctrl_t *cp;
1423 {
1424 	struct cmpci_softc *sc = handle;
1425 
1426 	switch (cp->dev) {
1427 	case CMPCI_MIC_VOL:
1428 	case CMPCI_LINE_IN_VOL:
1429 		if (cp->un.value.num_channels != 1)
1430 			return EINVAL;
1431 		/* fall into */
1432 	case CMPCI_TREBLE:
1433 	case CMPCI_BASS:
1434 	case CMPCI_PCSPEAKER:
1435 	case CMPCI_INPUT_GAIN:
1436 	case CMPCI_OUTPUT_GAIN:
1437 	case CMPCI_VOICE_VOL:
1438 	case CMPCI_FM_VOL:
1439 	case CMPCI_CD_VOL:
1440 	case CMPCI_MASTER_VOL:
1441 		switch (cp->un.value.num_channels) {
1442 		case 1:
1443 			cp->un.value.level[AUDIO_MIXER_LEVEL_MONO] =
1444 				sc->gain[cp->dev][CMPCI_LEFT];
1445 			break;
1446 		case 2:
1447 			cp->un.value.level[AUDIO_MIXER_LEVEL_LEFT] =
1448 				sc->gain[cp->dev][CMPCI_LEFT];
1449 			cp->un.value.level[AUDIO_MIXER_LEVEL_RIGHT] =
1450 				sc->gain[cp->dev][CMPCI_RIGHT];
1451 			break;
1452 		default:
1453 			return EINVAL;
1454 		}
1455 		break;
1456 
1457 	case CMPCI_RECORD_SOURCE:
1458 		cp->un.mask = sc->in_mask;
1459 		break;
1460 
1461 	case CMPCI_AGC:
1462 		cp->un.ord = cmpci_mixerreg_read(sc, CMPCI_SB16_MIXER_AGC);
1463 		break;
1464 
1465 	case CMPCI_CD_IN_MUTE:
1466 	case CMPCI_MIC_IN_MUTE:
1467 	case CMPCI_LINE_IN_MUTE:
1468 	case CMPCI_FM_IN_MUTE:
1469 	case CMPCI_CD_SWAP:
1470 	case CMPCI_MIC_SWAP:
1471 	case CMPCI_LINE_SWAP:
1472 	case CMPCI_FM_SWAP:
1473 	case CMPCI_CD_OUT_MUTE:
1474 	case CMPCI_MIC_OUT_MUTE:
1475 	case CMPCI_LINE_OUT_MUTE:
1476 		cp->un.ord = sc->gain[cp->dev][CMPCI_LR];
1477 		break;
1478 
1479 	default:
1480 		return EINVAL;
1481 	}
1482 
1483 	return 0;
1484 }
1485 
1486 /* ARGSUSED */
1487 static size_t
1488 cmpci_round_buffersize(handle, direction, bufsize)
1489 	void *handle;
1490 	int direction;
1491 	size_t bufsize;
1492 {
1493 	if (bufsize > 0x10000)
1494 		bufsize = 0x10000;
1495 
1496 	return bufsize;
1497 }
1498 
1499 
1500 static paddr_t
1501 cmpci_mappage(handle, addr, offset, prot)
1502 	void *handle;
1503 	void *addr;
1504 	off_t offset;
1505 	int prot;
1506 {
1507 	struct cmpci_softc *sc = handle;
1508 	struct cmpci_dmanode *p;
1509 
1510 	if (offset < 0 || NULL == (p = cmpci_find_dmamem(sc, addr)))
1511 		return -1;
1512 
1513 	return bus_dmamem_mmap(p->cd_tag, p->cd_segs,
1514                    sizeof(p->cd_segs)/sizeof(p->cd_segs[0]),
1515                    offset, prot, BUS_DMA_WAITOK);
1516 }
1517 
1518 
1519 /* ARGSUSED */
1520 static int
1521 cmpci_get_props(handle)
1522 	void *handle;
1523 {
1524 	return AUDIO_PROP_MMAP | AUDIO_PROP_INDEPENDENT | AUDIO_PROP_FULLDUPLEX;
1525 }
1526 
1527 
1528 static int
1529 cmpci_trigger_output(handle, start, end, blksize, intr, arg, param)
1530         void *handle;
1531         void *start, *end;
1532         int blksize;
1533         void (*intr) __P((void *));
1534         void *arg;
1535         struct audio_params *param;
1536 {
1537 	struct cmpci_softc *sc = handle;
1538 	struct cmpci_dmanode *p;
1539 	int bps;
1540 
1541 	sc->sc_play.intr = intr;
1542 	sc->sc_play.intr_arg = arg;
1543 	bps = param->channels*param->precision*param->factor / 8;
1544 	if (!bps)
1545 		return EINVAL;
1546 
1547 	/* set DMA frame */
1548 	if (!(p = cmpci_find_dmamem(sc, start)))
1549 		return EINVAL;
1550 	bus_space_write_4(sc->sc_iot, sc->sc_ioh, CMPCI_REG_DMA0_BASE,
1551 	    DMAADDR(p));
1552 	delay(10);
1553 	bus_space_write_2(sc->sc_iot, sc->sc_ioh, CMPCI_REG_DMA0_BYTES,
1554             ((caddr_t)end - (caddr_t)start + 1) / bps - 1);
1555 	delay(10);
1556 
1557 	/* set interrupt count */
1558 	bus_space_write_2(sc->sc_iot, sc->sc_ioh, CMPCI_REG_DMA0_SAMPLES,
1559 			  (blksize + bps - 1) / bps - 1);
1560 	delay(10);
1561 
1562 	/* start DMA */
1563 	cmpci_reg_clear_4(sc, CMPCI_REG_FUNC_0, CMPCI_REG_CH0_DIR); /* PLAY */
1564 	cmpci_reg_set_4(sc, CMPCI_REG_INTR_CTRL, CMPCI_REG_CH0_INTR_ENABLE);
1565 	cmpci_reg_set_4(sc, CMPCI_REG_FUNC_0, CMPCI_REG_CH0_ENABLE);
1566 
1567 	return 0;
1568 }
1569 
1570 static int
1571 cmpci_trigger_input(handle, start, end, blksize, intr, arg, param)
1572         void *handle;
1573         void *start, *end;
1574         int blksize;
1575         void (*intr) __P((void *));
1576         void *arg;
1577         struct audio_params *param;
1578 {
1579 	struct cmpci_softc *sc = handle;
1580 	struct cmpci_dmanode *p;
1581 	int bps;
1582 
1583 	sc->sc_rec.intr = intr;
1584 	sc->sc_rec.intr_arg = arg;
1585 	bps = param->channels*param->precision*param->factor/8;
1586 	if (!bps)
1587 		return EINVAL;
1588 
1589 	/* set DMA frame */
1590 	if (!(p=cmpci_find_dmamem(sc, start)))
1591 		return EINVAL;
1592 	bus_space_write_4(sc->sc_iot, sc->sc_ioh, CMPCI_REG_DMA1_BASE,
1593 	    DMAADDR(p));
1594 	delay(10);
1595 	bus_space_write_2(sc->sc_iot, sc->sc_ioh, CMPCI_REG_DMA1_BYTES,
1596             ((caddr_t)end - (caddr_t)start + 1) / bps - 1);
1597 	delay(10);
1598 
1599 	/* set interrupt count */
1600 	bus_space_write_2(sc->sc_iot, sc->sc_ioh, CMPCI_REG_DMA1_SAMPLES,
1601             (blksize + bps - 1) / bps - 1);
1602 	delay(10);
1603 
1604 	/* start DMA */
1605 	cmpci_reg_set_4(sc, CMPCI_REG_FUNC_0, CMPCI_REG_CH1_DIR); /* REC */
1606 	cmpci_reg_set_4(sc, CMPCI_REG_INTR_CTRL, CMPCI_REG_CH1_INTR_ENABLE);
1607 	cmpci_reg_set_4(sc, CMPCI_REG_FUNC_0, CMPCI_REG_CH1_ENABLE);
1608 
1609 	return 0;
1610 }
1611 
1612 
1613 /* end of file */
1614