xref: /netbsd-src/sys/dev/isa/sbdsp.c (revision d909946ca08dceb44d7d0f22ec9488679695d976)
1 /*	$NetBSD: sbdsp.c,v 1.136 2016/07/11 11:31:50 msaitoh Exp $	*/
2 
3 /*-
4  * Copyright (c) 1999, 2008 The NetBSD Foundation, Inc.
5  * All rights reserved.
6  *
7  * This code is derived from software contributed to The NetBSD Foundation
8  * by Charles M. Hannum.
9  *
10  * Redistribution and use in source and binary forms, with or without
11  * modification, are permitted provided that the following conditions
12  * are met:
13  * 1. Redistributions of source code must retain the above copyright
14  *    notice, this list of conditions and the following disclaimer.
15  * 2. Redistributions in binary form must reproduce the above copyright
16  *    notice, this list of conditions and the following disclaimer in the
17  *    documentation and/or other materials provided with the distribution.
18  *
19  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
20  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
21  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
22  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
23  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
24  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
25  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
26  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
27  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
28  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
29  * POSSIBILITY OF SUCH DAMAGE.
30  */
31 
32 /*
33  * Copyright (c) 1991-1993 Regents of the University of California.
34  * All rights reserved.
35  *
36  * Redistribution and use in source and binary forms, with or without
37  * modification, are permitted provided that the following conditions
38  * are met:
39  * 1. Redistributions of source code must retain the above copyright
40  *    notice, this list of conditions and the following disclaimer.
41  * 2. Redistributions in binary form must reproduce the above copyright
42  *    notice, this list of conditions and the following disclaimer in the
43  *    documentation and/or other materials provided with the distribution.
44  * 3. All advertising materials mentioning features or use of this software
45  *    must display the following acknowledgement:
46  *	This product includes software developed by the Computer Systems
47  *	Engineering Group at Lawrence Berkeley Laboratory.
48  * 4. Neither the name of the University nor of the Laboratory may be used
49  *    to endorse or promote products derived from this software without
50  *    specific prior written permission.
51  *
52  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
53  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
54  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
55  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
56  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
57  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
58  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
59  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
60  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
61  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
62  * SUCH DAMAGE.
63  *
64  */
65 
66 /*
67  * SoundBlaster Pro code provided by John Kohl, based on lots of
68  * information he gleaned from Steve Haehnichen <steve@vigra.com>'s
69  * SBlast driver for 386BSD and DOS driver code from Daniel Sachs
70  * <sachs@meibm15.cen.uiuc.edu>.
71  * Lots of rewrites by Lennart Augustsson <augustss@cs.chalmers.se>
72  * with information from SB "Hardware Programming Guide" and the
73  * Linux drivers.
74  */
75 
76 #include <sys/cdefs.h>
77 __KERNEL_RCSID(0, "$NetBSD: sbdsp.c,v 1.136 2016/07/11 11:31:50 msaitoh Exp $");
78 
79 #include "midi.h"
80 #include "mpu.h"
81 
82 #include <sys/param.h>
83 #include <sys/systm.h>
84 #include <sys/kernel.h>
85 #include <sys/errno.h>
86 #include <sys/ioctl.h>
87 #include <sys/syslog.h>
88 #include <sys/device.h>
89 #include <sys/proc.h>
90 #include <sys/buf.h>
91 #include <sys/malloc.h>
92 #include <sys/cpu.h>
93 #include <sys/intr.h>
94 #include <sys/bus.h>
95 
96 #include <sys/audioio.h>
97 #include <dev/audio_if.h>
98 #include <dev/midi_if.h>
99 #include <dev/mulaw.h>
100 #include <dev/auconv.h>
101 
102 #include <dev/isa/isavar.h>
103 #include <dev/isa/isadmavar.h>
104 
105 #include <dev/isa/sbreg.h>
106 #include <dev/isa/sbdspvar.h>
107 
108 
109 #ifdef AUDIO_DEBUG
110 #define DPRINTF(x)	if (sbdspdebug) printf x
111 #define DPRINTFN(n,x)	if (sbdspdebug >= (n)) printf x
112 int	sbdspdebug = 0;
113 #else
114 #define DPRINTF(x)
115 #define DPRINTFN(n,x)
116 #endif
117 
118 #ifndef SBDSP_NPOLL
119 #define SBDSP_NPOLL 3000
120 #endif
121 
122 struct {
123 	int wdsp;
124 	int rdsp;
125 	int wmidi;
126 } sberr;
127 
128 /*
129  * Time constant routines follow.  See SBK, section 12.
130  * Although they don't come out and say it (in the docs),
131  * the card clearly uses a 1MHz countdown timer, as the
132  * low-speed formula (p. 12-4) is:
133  *	tc = 256 - 10^6 / sr
134  * In high-speed mode, the constant is the upper byte of a 16-bit counter,
135  * and a 256MHz clock is used:
136  *	tc = 65536 - 256 * 10^ 6 / sr
137  * Since we can only use the upper byte of the HS TC, the two formulae
138  * are equivalent.  (Why didn't they say so?)  E.g.,
139  *	(65536 - 256 * 10 ^ 6 / x) >> 8 = 256 - 10^6 / x
140  *
141  * The crossover point (from low- to high-speed modes) is different
142  * for the SBPRO and SB20.  The table on p. 12-5 gives the following data:
143  *
144  *				SBPRO			SB20
145  *				-----			--------
146  * input ls min			4	kHz		4	kHz
147  * input ls max			23	kHz		13	kHz
148  * input hs max			44.1	kHz		15	kHz
149  * output ls min		4	kHz		4	kHz
150  * output ls max		23	kHz		23	kHz
151  * output hs max		44.1	kHz		44.1	kHz
152  */
153 /* XXX Should we round the tc?
154 #define SB_RATE_TO_TC(x) (((65536 - 256 * 1000000 / (x)) + 128) >> 8)
155 */
156 #define SB_RATE_TO_TC(x) (256 - 1000000 / (x))
157 #define SB_TC_TO_RATE(tc) (1000000 / (256 - (tc)))
158 
159 struct sbmode {
160 	short	model;
161 	u_char	channels;
162 	u_char	precision;
163 	u_short	lowrate, highrate;
164 	u_char	cmd;
165 	u_char	halt, cont;
166 	u_char	cmdchan;
167 };
168 static struct sbmode sbpmodes[] = {
169  { SB_1,   1, 8, 4000,22727,SB_DSP_WDMA     ,SB_DSP_HALT  ,SB_DSP_CONT, 0, },
170  { SB_20,  1, 8, 4000,22727,SB_DSP_WDMA_LOOP,SB_DSP_HALT  ,SB_DSP_CONT, 0, },
171  { SB_2x,  1, 8,22727,45454,SB_DSP_HS_OUTPUT,SB_DSP_HALT  ,SB_DSP_CONT, 0, },
172  { SB_2x,  1, 8, 4000,22727,SB_DSP_WDMA_LOOP,SB_DSP_HALT  ,SB_DSP_CONT, 0, },
173  { SB_PRO, 1, 8,22727,45454,SB_DSP_HS_OUTPUT,SB_DSP_HALT  ,SB_DSP_CONT, 0, },
174  { SB_PRO, 1, 8, 4000,22727,SB_DSP_WDMA_LOOP,SB_DSP_HALT  ,SB_DSP_CONT, 0, },
175  { SB_PRO, 2, 8,11025,22727,SB_DSP_HS_OUTPUT,SB_DSP_HALT  ,SB_DSP_CONT, 0, },
176  /* Yes, we write the record mode to set 16-bit playback mode. weird, huh? */
177  { SB_JAZZ,1, 8,22727,45454,SB_DSP_HS_OUTPUT,SB_DSP_HALT  ,SB_DSP_CONT  ,SB_DSP_RECORD_MONO },
178  { SB_JAZZ,1, 8, 4000,22727,SB_DSP_WDMA_LOOP,SB_DSP_HALT  ,SB_DSP_CONT  ,SB_DSP_RECORD_MONO },
179  { SB_JAZZ,2, 8,11025,22727,SB_DSP_HS_OUTPUT,SB_DSP_HALT  ,SB_DSP_CONT  ,SB_DSP_RECORD_STEREO },
180  { SB_JAZZ,1,16,22727,45454,SB_DSP_HS_OUTPUT,SB_DSP_HALT  ,SB_DSP_CONT  ,JAZZ16_RECORD_MONO },
181  { SB_JAZZ,1,16, 4000,22727,SB_DSP_WDMA_LOOP,SB_DSP_HALT  ,SB_DSP_CONT  ,JAZZ16_RECORD_MONO },
182  { SB_JAZZ,2,16,11025,22727,SB_DSP_HS_OUTPUT,SB_DSP_HALT  ,SB_DSP_CONT  ,JAZZ16_RECORD_STEREO },
183  { SB_16,  1, 8, 5000,49000,SB_DSP16_WDMA_8 ,SB_DSP_HALT  ,SB_DSP_CONT, 0, },
184  { SB_16,  2, 8, 5000,49000,SB_DSP16_WDMA_8 ,SB_DSP_HALT  ,SB_DSP_CONT, 0, },
185 #define PLAY16 15 /* must be the index of the next entry in the table */
186  { SB_16,  1,16, 5000,49000,SB_DSP16_WDMA_16,SB_DSP16_HALT,SB_DSP16_CONT, 0, },
187  { SB_16,  2,16, 5000,49000,SB_DSP16_WDMA_16,SB_DSP16_HALT,SB_DSP16_CONT, 0, },
188  { .model = -1 }
189 };
190 static struct sbmode sbrmodes[] = {
191  { SB_1,   1, 8, 4000,12987,SB_DSP_RDMA     ,SB_DSP_HALT  ,SB_DSP_CONT, 0, },
192  { SB_20,  1, 8, 4000,12987,SB_DSP_RDMA_LOOP,SB_DSP_HALT  ,SB_DSP_CONT, 0, },
193  { SB_2x,  1, 8,12987,14925,SB_DSP_HS_INPUT ,SB_DSP_HALT  ,SB_DSP_CONT, 0, },
194  { SB_2x,  1, 8, 4000,12987,SB_DSP_RDMA_LOOP,SB_DSP_HALT  ,SB_DSP_CONT, 0, },
195  { SB_PRO, 1, 8,22727,45454,SB_DSP_HS_INPUT ,SB_DSP_HALT  ,SB_DSP_CONT  ,SB_DSP_RECORD_MONO },
196  { SB_PRO, 1, 8, 4000,22727,SB_DSP_RDMA_LOOP,SB_DSP_HALT  ,SB_DSP_CONT  ,SB_DSP_RECORD_MONO },
197  { SB_PRO, 2, 8,11025,22727,SB_DSP_HS_INPUT ,SB_DSP_HALT  ,SB_DSP_CONT  ,SB_DSP_RECORD_STEREO },
198  { SB_JAZZ,1, 8,22727,45454,SB_DSP_HS_INPUT ,SB_DSP_HALT  ,SB_DSP_CONT  ,SB_DSP_RECORD_MONO },
199  { SB_JAZZ,1, 8, 4000,22727,SB_DSP_RDMA_LOOP,SB_DSP_HALT  ,SB_DSP_CONT  ,SB_DSP_RECORD_MONO },
200  { SB_JAZZ,2, 8,11025,22727,SB_DSP_HS_INPUT ,SB_DSP_HALT  ,SB_DSP_CONT  ,SB_DSP_RECORD_STEREO },
201  { SB_JAZZ,1,16,22727,45454,SB_DSP_HS_INPUT ,SB_DSP_HALT  ,SB_DSP_CONT  ,JAZZ16_RECORD_MONO },
202  { SB_JAZZ,1,16, 4000,22727,SB_DSP_RDMA_LOOP,SB_DSP_HALT  ,SB_DSP_CONT  ,JAZZ16_RECORD_MONO },
203  { SB_JAZZ,2,16,11025,22727,SB_DSP_HS_INPUT ,SB_DSP_HALT  ,SB_DSP_CONT  ,JAZZ16_RECORD_STEREO },
204  { SB_16,  1, 8, 5000,49000,SB_DSP16_RDMA_8 ,SB_DSP_HALT  ,SB_DSP_CONT, 0, },
205  { SB_16,  2, 8, 5000,49000,SB_DSP16_RDMA_8 ,SB_DSP_HALT  ,SB_DSP_CONT, 0, },
206  { SB_16,  1,16, 5000,49000,SB_DSP16_RDMA_16,SB_DSP16_HALT,SB_DSP16_CONT, 0, },
207  { SB_16,  2,16, 5000,49000,SB_DSP16_RDMA_16,SB_DSP16_HALT,SB_DSP16_CONT, 0, },
208  { .model = -1 }
209 };
210 
211 void	sbversion(struct sbdsp_softc *);
212 void	sbdsp_jazz16_probe(struct sbdsp_softc *);
213 void	sbdsp_set_mixer_gain(struct sbdsp_softc *, int);
214 void	sbdsp_pause(struct sbdsp_softc *);
215 int	sbdsp_set_timeconst(struct sbdsp_softc *, int);
216 int	sbdsp16_set_rate(struct sbdsp_softc *, int, int);
217 int	sbdsp_set_in_ports(struct sbdsp_softc *, int);
218 void	sbdsp_set_ifilter(void *, int);
219 int	sbdsp_get_ifilter(void *);
220 
221 int	sbdsp_block_output(void *);
222 int	sbdsp_block_input(void *);
223 static	int sbdsp_adjust(int, int);
224 
225 int	sbdsp_midi_intr(void *);
226 
227 static bool	sbdsp_resume(device_t, const pmf_qual_t *);
228 
229 #ifdef AUDIO_DEBUG
230 void	sb_printsc(struct sbdsp_softc *);
231 
232 void
233 sb_printsc(struct sbdsp_softc *sc)
234 {
235 	int i;
236 
237 	printf("open %d DMA chan %d/%d %d/%d iobase 0x%x irq %d\n",
238 	    (int)sc->sc_open, sc->sc_i.run, sc->sc_o.run,
239 	    sc->sc_drq8, sc->sc_drq16,
240 	    sc->sc_iobase, sc->sc_irq);
241 	printf("irate %d itc %x orate %d otc %x\n",
242 	    sc->sc_i.rate, sc->sc_i.tc,
243 	    sc->sc_o.rate, sc->sc_o.tc);
244 	printf("spkron %u nintr %lu\n",
245 	    sc->spkr_state, sc->sc_interrupts);
246 	printf("intr8 %p intr16 %p\n",
247 	    sc->sc_intr8, sc->sc_intr16);
248 	printf("gain:");
249 	for (i = 0; i < SB_NDEVS; i++)
250 		printf(" %u,%u", sc->gain[i][SB_LEFT], sc->gain[i][SB_RIGHT]);
251 	printf("\n");
252 }
253 #endif /* AUDIO_DEBUG */
254 
255 /*
256  * Probe / attach routines.
257  */
258 
259 /*
260  * Probe for the soundblaster hardware.
261  */
262 int
263 sbdsp_probe(struct sbdsp_softc *sc, cfdata_t match)
264 {
265 
266 	if (sbdsp_reset(sc) < 0) {
267 		DPRINTF(("sbdsp: couldn't reset card\n"));
268 		return 0;
269 	}
270 	/* if flags set, go and probe the jazz16 stuff */
271 	if (match->cf_flags & 1)
272 		sbdsp_jazz16_probe(sc);
273 	else
274 		sbversion(sc);
275 	if (sc->sc_model == SB_UNK) {
276 		/* Unknown SB model found. */
277 		DPRINTF(("sbdsp: unknown SB model found\n"));
278 		return 0;
279 	}
280 	return 1;
281 }
282 
283 /*
284  * Try add-on stuff for Jazz16.
285  */
286 void
287 sbdsp_jazz16_probe(struct sbdsp_softc *sc)
288 {
289 	static u_char jazz16_irq_conf[16] = {
290 	    -1, -1, 0x02, 0x03,
291 	    -1, 0x01, -1, 0x04,
292 	    -1, 0x02, 0x05, -1,
293 	    -1, -1, -1, 0x06};
294 	static u_char jazz16_drq_conf[8] = {
295 	    -1, 0x01, -1, 0x02,
296 	    -1, 0x03, -1, 0x04};
297 
298 	bus_space_tag_t iot;
299 	bus_space_handle_t ioh;
300 
301 	iot = sc->sc_iot;
302 	sbversion(sc);
303 
304 	DPRINTF(("jazz16 probe\n"));
305 
306 	if (bus_space_map(iot, JAZZ16_CONFIG_PORT, 1, 0, &ioh)) {
307 		DPRINTF(("bus map failed\n"));
308 		return;
309 	}
310 
311 	if (jazz16_drq_conf[sc->sc_drq8] == (u_char)-1 ||
312 	    jazz16_irq_conf[sc->sc_irq] == (u_char)-1) {
313 		DPRINTF(("drq/irq check failed\n"));
314 		goto done;		/* give up, we can't do it. */
315 	}
316 
317 	bus_space_write_1(iot, ioh, 0, JAZZ16_WAKEUP);
318 	delay(10000);			/* delay 10 ms */
319 	bus_space_write_1(iot, ioh, 0, JAZZ16_SETBASE);
320 	bus_space_write_1(iot, ioh, 0, sc->sc_iobase & 0x70);
321 
322 	if (sbdsp_reset(sc) < 0) {
323 		DPRINTF(("sbdsp_reset check failed\n"));
324 		goto done;		/* XXX? what else could we do? */
325 	}
326 
327 	if (sbdsp_wdsp(sc, JAZZ16_READ_VER)) {
328 		DPRINTF(("read16 setup failed\n"));
329 		goto done;
330 	}
331 
332 	if (sbdsp_rdsp(sc) != JAZZ16_VER_JAZZ) {
333 		DPRINTF(("read16 failed\n"));
334 		goto done;
335 	}
336 
337 	/* XXX set both 8 & 16-bit drq to same channel, it works fine. */
338 	sc->sc_drq16 = sc->sc_drq8;
339 	if (sbdsp_wdsp(sc, JAZZ16_SET_DMAINTR) ||
340 	    (sc->sc_drq16 >= 0 &&
341 	    sbdsp_wdsp(sc, (jazz16_drq_conf[sc->sc_drq16] << 4) |
342 		jazz16_drq_conf[sc->sc_drq8])) ||
343 	    sbdsp_wdsp(sc, jazz16_irq_conf[sc->sc_irq])) {
344 		DPRINTF(("sbdsp: can't write jazz16 probe stuff\n"));
345 	} else {
346 		DPRINTF(("jazz16 detected!\n"));
347 		sc->sc_model = SB_JAZZ;
348 		sc->sc_mixer_model = SBM_CT1345; /* XXX really? */
349 	}
350 
351 done:
352 	bus_space_unmap(iot, ioh, 1);
353 }
354 
355 /*
356  * Attach hardware to driver, attach hardware driver to audio
357  * pseudo-device driver .
358  */
359 void
360 sbdsp_attach(struct sbdsp_softc *sc)
361 {
362 	int i, error;
363 	u_int v;
364 
365 	mutex_enter(&sc->sc_lock);
366 	mutex_spin_enter(&sc->sc_intr_lock);
367 
368 	sbdsp_set_in_ports(sc, 1 << SB_MIC_VOL);
369 
370 	if (sc->sc_mixer_model != SBM_NONE) {
371 		/* Reset the mixer.*/
372 		sbdsp_mix_write(sc, SBP_MIX_RESET, SBP_MIX_RESET);
373 		/* And set our own default values */
374 		for (i = 0; i < SB_NDEVS; i++) {
375 			switch(i) {
376 			case SB_MIC_VOL:
377 			case SB_LINE_IN_VOL:
378 				v = 0;
379 				break;
380 			case SB_BASS:
381 			case SB_TREBLE:
382 				v = SB_ADJUST_GAIN(sc, AUDIO_MAX_GAIN / 2);
383 				break;
384 			case SB_CD_IN_MUTE:
385 			case SB_MIC_IN_MUTE:
386 			case SB_LINE_IN_MUTE:
387 			case SB_MIDI_IN_MUTE:
388 			case SB_CD_SWAP:
389 			case SB_MIC_SWAP:
390 			case SB_LINE_SWAP:
391 			case SB_MIDI_SWAP:
392 			case SB_CD_OUT_MUTE:
393 			case SB_MIC_OUT_MUTE:
394 			case SB_LINE_OUT_MUTE:
395 				v = 0;
396 				break;
397 			default:
398 				v = SB_ADJUST_GAIN(sc, AUDIO_MAX_GAIN / 2);
399 				break;
400 			}
401 			sc->gain[i][SB_LEFT] = sc->gain[i][SB_RIGHT] = v;
402 			sbdsp_set_mixer_gain(sc, i);
403 		}
404 		sc->in_filter = 0;	/* no filters turned on, please */
405 	}
406 
407 	mutex_spin_exit(&sc->sc_intr_lock);
408 	mutex_exit(&sc->sc_lock);
409 
410 	aprint_naive("\n");
411 	aprint_normal(": dsp v%d.%02d%s\n",
412 	       SBVER_MAJOR(sc->sc_version), SBVER_MINOR(sc->sc_version),
413 	       sc->sc_model == SB_JAZZ ? ": <Jazz16>" : "");
414 
415 	sc->sc_fullduplex = ISSB16CLASS(sc) &&
416 	    sc->sc_drq8 != -1 && sc->sc_drq16 != -1 &&
417 	    sc->sc_drq8 != sc->sc_drq16;
418 
419 	if (sc->sc_drq8 != -1) {
420 		sc->sc_drq8_maxsize = isa_dmamaxsize(sc->sc_ic,
421 		    sc->sc_drq8);
422 		error = isa_dmamap_create(sc->sc_ic, sc->sc_drq8,
423 		    sc->sc_drq8_maxsize, BUS_DMA_WAITOK|BUS_DMA_ALLOCNOW);
424 		if (error) {
425 			aprint_error_dev(sc->sc_dev,
426 			    "can't create map for drq %d\n", sc->sc_drq8);
427 			return;
428 		}
429 	}
430 
431 	if (sc->sc_drq16 != -1 && sc->sc_drq16 != sc->sc_drq8) {
432 		sc->sc_drq16_maxsize = isa_dmamaxsize(sc->sc_ic,
433 		    sc->sc_drq16);
434 		error = isa_dmamap_create(sc->sc_ic, sc->sc_drq16,
435 		    sc->sc_drq16_maxsize, BUS_DMA_WAITOK|BUS_DMA_ALLOCNOW);
436 		if (error) {
437 			aprint_error_dev(sc->sc_dev,
438 			    "can't create map for drq %d\n", sc->sc_drq16);
439 			isa_dmamap_destroy(sc->sc_ic, sc->sc_drq8);
440 			return;
441 		}
442 	}
443 
444 	if (!pmf_device_register(sc->sc_dev, NULL, sbdsp_resume))
445 		aprint_error_dev(sc->sc_dev,
446 		    "couldn't establish power handler\n");
447 }
448 
449 static bool
450 sbdsp_resume(device_t dv, const pmf_qual_t *qual)
451 {
452 	struct sbdsp_softc *sc = device_private(dv);
453 
454 	/* Reset the mixer. */
455 	mutex_enter(&sc->sc_lock);
456 	mutex_spin_enter(&sc->sc_intr_lock);
457 	sbdsp_mix_write(sc, SBP_MIX_RESET, SBP_MIX_RESET);
458 	mutex_spin_exit(&sc->sc_intr_lock);
459 	mutex_exit(&sc->sc_lock);
460 
461 	return true;
462 }
463 
464 void
465 sbdsp_mix_write(struct sbdsp_softc *sc, int mixerport, int val)
466 {
467 	bus_space_tag_t iot;
468 	bus_space_handle_t ioh;
469 
470 	iot = sc->sc_iot;
471 	ioh = sc->sc_ioh;
472 	bus_space_write_1(iot, ioh, SBP_MIXER_ADDR, mixerport);
473 	delay(20);
474 	bus_space_write_1(iot, ioh, SBP_MIXER_DATA, val);
475 	delay(30);
476 }
477 
478 int
479 sbdsp_mix_read(struct sbdsp_softc *sc, int mixerport)
480 {
481 	bus_space_tag_t iot;
482 	bus_space_handle_t ioh;
483 	int val;
484 
485 	iot = sc->sc_iot;
486 	ioh = sc->sc_ioh;
487 	bus_space_write_1(iot, ioh, SBP_MIXER_ADDR, mixerport);
488 	delay(20);
489 	val = bus_space_read_1(iot, ioh, SBP_MIXER_DATA);
490 	delay(30);
491 	return val;
492 }
493 
494 /*
495  * Various routines to interface to higher level audio driver
496  */
497 
498 int
499 sbdsp_query_encoding(void *addr, struct audio_encoding *fp)
500 {
501 	struct sbdsp_softc *sc;
502 	int emul;
503 
504 	sc = addr;
505 	emul = ISSB16CLASS(sc) ? 0 : AUDIO_ENCODINGFLAG_EMULATED;
506 
507 	switch (fp->index) {
508 	case 0:
509 		strcpy(fp->name, AudioEulinear);
510 		fp->encoding = AUDIO_ENCODING_ULINEAR;
511 		fp->precision = 8;
512 		fp->flags = 0;
513 		return 0;
514 	case 1:
515 		strcpy(fp->name, AudioEmulaw);
516 		fp->encoding = AUDIO_ENCODING_ULAW;
517 		fp->precision = 8;
518 		fp->flags = AUDIO_ENCODINGFLAG_EMULATED;
519 		return 0;
520 	case 2:
521 		strcpy(fp->name, AudioEalaw);
522 		fp->encoding = AUDIO_ENCODING_ALAW;
523 		fp->precision = 8;
524 		fp->flags = AUDIO_ENCODINGFLAG_EMULATED;
525 		return 0;
526 	case 3:
527 		strcpy(fp->name, AudioEslinear);
528 		fp->encoding = AUDIO_ENCODING_SLINEAR;
529 		fp->precision = 8;
530 		fp->flags = emul;
531 		return 0;
532 	}
533 	if (!ISSB16CLASS(sc) && sc->sc_model != SB_JAZZ)
534 		return EINVAL;
535 
536 	switch(fp->index) {
537 	case 4:
538 		strcpy(fp->name, AudioEslinear_le);
539 		fp->encoding = AUDIO_ENCODING_SLINEAR_LE;
540 		fp->precision = 16;
541 		fp->flags = 0;
542 		return 0;
543 	case 5:
544 		strcpy(fp->name, AudioEulinear_le);
545 		fp->encoding = AUDIO_ENCODING_ULINEAR_LE;
546 		fp->precision = 16;
547 		fp->flags = emul;
548 		return 0;
549 	case 6:
550 		strcpy(fp->name, AudioEslinear_be);
551 		fp->encoding = AUDIO_ENCODING_SLINEAR_BE;
552 		fp->precision = 16;
553 		fp->flags = AUDIO_ENCODINGFLAG_EMULATED;
554 		return 0;
555 	case 7:
556 		strcpy(fp->name, AudioEulinear_be);
557 		fp->encoding = AUDIO_ENCODING_ULINEAR_BE;
558 		fp->precision = 16;
559 		fp->flags = AUDIO_ENCODINGFLAG_EMULATED;
560 		return 0;
561 	default:
562 		return EINVAL;
563 	}
564 	return 0;
565 }
566 
567 int
568 sbdsp_set_params(
569 	void *addr,
570 	int setmode, int usemode,
571 	audio_params_t *play, audio_params_t *rec,
572 	stream_filter_list_t *pfil, stream_filter_list_t *rfil)
573 {
574 	struct sbdsp_softc *sc;
575 	struct sbmode *m;
576 	u_int rate, tc, bmode;
577 	stream_filter_factory_t *swcode;
578 	int model;
579 	int chan;
580 	struct audio_params *p;
581 	audio_params_t hw;
582 	stream_filter_list_t *fil;
583 	int mode;
584 
585 	sc = addr;
586 
587 	if (sc->sc_open == SB_OPEN_MIDI)
588 		return EBUSY;
589 
590 	/* Later models work like SB16. */
591 	model = min(sc->sc_model, SB_16);
592 
593 	/*
594 	 * Prior to the SB16, we have only one clock, so make the sample
595 	 * rates match.
596 	 */
597 	if (!ISSB16CLASS(sc) &&
598 	    play->sample_rate != rec->sample_rate &&
599 	    usemode == (AUMODE_PLAY | AUMODE_RECORD)) {
600 		if (setmode == AUMODE_PLAY) {
601 			rec->sample_rate = play->sample_rate;
602 			setmode |= AUMODE_RECORD;
603 		} else if (setmode == AUMODE_RECORD) {
604 			play->sample_rate = rec->sample_rate;
605 			setmode |= AUMODE_PLAY;
606 		} else
607 			return EINVAL;
608 	}
609 
610 	/* Set first record info, then play info */
611 	for (mode = AUMODE_RECORD; mode != -1;
612 	     mode = mode == AUMODE_RECORD ? AUMODE_PLAY : -1) {
613 		if ((setmode & mode) == 0)
614 			continue;
615 
616 		p = mode == AUMODE_PLAY ? play : rec;
617 		/* Locate proper commands */
618 		for (m = mode == AUMODE_PLAY ? sbpmodes : sbrmodes;
619 		    m->model != -1; m++) {
620 			if (model == m->model &&
621 			    p->channels == m->channels &&
622 			    p->precision == m->precision &&
623 			    p->sample_rate >= m->lowrate &&
624 			    p->sample_rate <= m->highrate)
625 				break;
626 		}
627 		if (m->model == -1)
628 			return EINVAL;
629 		rate = p->sample_rate;
630 		swcode = NULL;
631 		fil = mode ==  AUMODE_PLAY ? pfil : rfil;
632 		hw = *p;
633 		tc = 1;
634 		bmode = -1;
635 		if (model == SB_16) {
636 			switch (p->encoding) {
637 			case AUDIO_ENCODING_SLINEAR_BE:
638 				if (p->precision == 16) {
639 					hw.encoding = AUDIO_ENCODING_SLINEAR_LE;
640 					swcode = swap_bytes;
641 				}
642 				/* fall into */
643 			case AUDIO_ENCODING_SLINEAR_LE:
644 				bmode = SB_BMODE_SIGNED;
645 				break;
646 
647 			case AUDIO_ENCODING_ULINEAR_BE:
648 				if (p->precision == 16) {
649 					hw.encoding = AUDIO_ENCODING_ULINEAR_LE;
650 					swcode = swap_bytes;
651 				}
652 				/* fall into */
653 			case AUDIO_ENCODING_ULINEAR_LE:
654 				bmode = SB_BMODE_UNSIGNED;
655 				break;
656 
657 			case AUDIO_ENCODING_ULAW:
658 				hw.encoding = AUDIO_ENCODING_ULINEAR_LE;
659 				if (mode == AUMODE_PLAY) {
660 					hw.precision = hw.validbits = 16;
661 					swcode = mulaw_to_linear16;
662 					m = &sbpmodes[PLAY16];
663 				} else
664 					swcode = linear8_to_mulaw;
665 				bmode = SB_BMODE_UNSIGNED;
666 				break;
667 
668 			case AUDIO_ENCODING_ALAW:
669 				hw.encoding = AUDIO_ENCODING_ULINEAR_LE;
670 				if (mode == AUMODE_PLAY) {
671 					hw.precision = hw.validbits = 16;
672 					swcode = alaw_to_linear16;
673 					m = &sbpmodes[PLAY16];
674 				} else
675 					swcode = linear8_to_alaw;
676 				bmode = SB_BMODE_UNSIGNED;
677 				break;
678 			default:
679 				return EINVAL;
680 			}
681 			if (p->channels == 2)
682 				bmode |= SB_BMODE_STEREO;
683 		} else if (m->model == SB_JAZZ && m->precision == 16) {
684 			switch (p->encoding) {
685 			case AUDIO_ENCODING_SLINEAR_LE:
686 				break;
687 			case AUDIO_ENCODING_ULINEAR_LE:
688 				hw.encoding = AUDIO_ENCODING_SLINEAR_LE;
689 				swcode = change_sign16;
690 				break;
691 			case AUDIO_ENCODING_SLINEAR_BE:
692 				hw.encoding = AUDIO_ENCODING_SLINEAR_LE;
693 				swcode = swap_bytes;
694 				break;
695 			case AUDIO_ENCODING_ULINEAR_BE:
696 				hw.encoding = AUDIO_ENCODING_SLINEAR_LE;
697 				swcode = swap_bytes_change_sign16;
698 				break;
699 			case AUDIO_ENCODING_ULAW:
700 				hw.encoding = AUDIO_ENCODING_ULINEAR_LE;
701 				swcode = mode == AUMODE_PLAY ?
702 					mulaw_to_linear8 : linear8_to_mulaw;
703 				break;
704 			case AUDIO_ENCODING_ALAW:
705 				hw.encoding = AUDIO_ENCODING_ULINEAR_LE;
706 				swcode = mode == AUMODE_PLAY ?
707 					alaw_to_linear8 : linear8_to_alaw;
708 				break;
709 			default:
710 				return EINVAL;
711 			}
712 			tc = SB_RATE_TO_TC(p->sample_rate * p->channels);
713 			p->sample_rate = SB_TC_TO_RATE(tc) / p->channels;
714 			hw.sample_rate = p->sample_rate;
715 		} else {
716 			switch (p->encoding) {
717 			case AUDIO_ENCODING_SLINEAR_BE:
718 			case AUDIO_ENCODING_SLINEAR_LE:
719 				hw.encoding = AUDIO_ENCODING_ULINEAR_LE;
720 				swcode = change_sign8;
721 				break;
722 			case AUDIO_ENCODING_ULINEAR_BE:
723 			case AUDIO_ENCODING_ULINEAR_LE:
724 				break;
725 			case AUDIO_ENCODING_ULAW:
726 				hw.encoding = AUDIO_ENCODING_ULINEAR_LE;
727 				swcode = mode == AUMODE_PLAY ?
728 					mulaw_to_linear8 : linear8_to_mulaw;
729 				break;
730 			case AUDIO_ENCODING_ALAW:
731 				hw.encoding = AUDIO_ENCODING_ULINEAR_LE;
732 				swcode = mode == AUMODE_PLAY ?
733 					alaw_to_linear8 : linear8_to_alaw;
734 				break;
735 			default:
736 				return EINVAL;
737 			}
738 			tc = SB_RATE_TO_TC(p->sample_rate * p->channels);
739 			p->sample_rate = SB_TC_TO_RATE(tc) / p->channels;
740 			hw.sample_rate = p->sample_rate;
741 		}
742 
743 		chan = m->precision == 16 ? sc->sc_drq16 : sc->sc_drq8;
744 		if (mode == AUMODE_PLAY) {
745 			sc->sc_o.rate = rate;
746 			sc->sc_o.tc = tc;
747 			sc->sc_o.modep = m;
748 			sc->sc_o.bmode = bmode;
749 			sc->sc_o.dmachan = chan;
750 		} else {
751 			sc->sc_i.rate = rate;
752 			sc->sc_i.tc = tc;
753 			sc->sc_i.modep = m;
754 			sc->sc_i.bmode = bmode;
755 			sc->sc_i.dmachan = chan;
756 		}
757 
758 		if (swcode != NULL)
759 			fil->append(fil, swcode, &hw);
760 		DPRINTF(("sbdsp_set_params: model=%d, mode=%d, rate=%u, "
761 			 "prec=%d, chan=%d, enc=%d -> tc=%02x, cmd=%02x, "
762 			 "bmode=%02x, cmdchan=%02x\n", sc->sc_model, mode,
763 			 p->sample_rate, p->precision, p->channels,
764 			 p->encoding, tc, m->cmd, bmode, m->cmdchan));
765 
766 	}
767 
768 	if (sc->sc_fullduplex &&
769 	    usemode == (AUMODE_PLAY | AUMODE_RECORD) &&
770 	    sc->sc_i.dmachan == sc->sc_o.dmachan) {
771 		DPRINTF(("sbdsp_set_params: fd=%d, usemode=%d, idma=%d, "
772 			 "odma=%d\n", sc->sc_fullduplex, usemode,
773 			 sc->sc_i.dmachan, sc->sc_o.dmachan));
774 		if (sc->sc_o.dmachan == sc->sc_drq8) {
775 			/* Use 16 bit DMA for playing by expanding the samples. */
776 			hw.precision = hw.validbits = 16;
777 			pfil->append(pfil, linear8_to_linear16, &hw);
778 			sc->sc_o.modep = &sbpmodes[PLAY16];
779 			sc->sc_o.dmachan = sc->sc_drq16;
780 		} else {
781 			return EINVAL;
782 		}
783 	}
784 	DPRINTF(("sbdsp_set_params ichan=%d, ochan=%d\n",
785 		 sc->sc_i.dmachan, sc->sc_o.dmachan));
786 
787 	return 0;
788 }
789 
790 void
791 sbdsp_set_ifilter(void *addr, int which)
792 {
793 	struct sbdsp_softc *sc;
794 	int mixval;
795 
796 	sc = addr;
797 
798 	mixval = sbdsp_mix_read(sc, SBP_INFILTER) & ~SBP_IFILTER_MASK;
799 	switch (which) {
800 	case 0:
801 		mixval |= SBP_FILTER_OFF;
802 		break;
803 	case SB_TREBLE:
804 		mixval |= SBP_FILTER_ON | SBP_IFILTER_HIGH;
805 		break;
806 	case SB_BASS:
807 		mixval |= SBP_FILTER_ON | SBP_IFILTER_LOW;
808 		break;
809 	default:
810 		return;
811 	}
812 	sc->in_filter = mixval & SBP_IFILTER_MASK;
813 	sbdsp_mix_write(sc, SBP_INFILTER, mixval);
814 }
815 
816 int
817 sbdsp_get_ifilter(void *addr)
818 {
819 	struct sbdsp_softc *sc;
820 
821 	sc = addr;
822 	sc->in_filter =
823 		sbdsp_mix_read(sc, SBP_INFILTER) & SBP_IFILTER_MASK;
824 	switch (sc->in_filter) {
825 	case SBP_FILTER_ON|SBP_IFILTER_HIGH:
826 		return SB_TREBLE;
827 	case SBP_FILTER_ON|SBP_IFILTER_LOW:
828 		return SB_BASS;
829 	default:
830 		return 0;
831 	}
832 }
833 
834 int
835 sbdsp_set_in_ports(struct sbdsp_softc *sc, int mask)
836 {
837 	int bitsl, bitsr;
838 	int sbport;
839 
840 	KASSERT(mutex_owned(&sc->sc_lock));
841 	KASSERT(mutex_owned(&sc->sc_intr_lock));
842 
843 	if (sc->sc_open == SB_OPEN_MIDI)
844 		return EBUSY;
845 
846 	DPRINTF(("sbdsp_set_in_ports: model=%d, mask=%x\n",
847 		 sc->sc_mixer_model, mask));
848 
849 	switch(sc->sc_mixer_model) {
850 	case SBM_NONE:
851 		return EINVAL;
852 	case SBM_CT1335:
853 		if (mask != (1 << SB_MIC_VOL))
854 			return EINVAL;
855 		break;
856 	case SBM_CT1345:
857 		switch (mask) {
858 		case 1 << SB_MIC_VOL:
859 			sbport = SBP_FROM_MIC;
860 			break;
861 		case 1 << SB_LINE_IN_VOL:
862 			sbport = SBP_FROM_LINE;
863 			break;
864 		case 1 << SB_CD_VOL:
865 			sbport = SBP_FROM_CD;
866 			break;
867 		default:
868 			return EINVAL;
869 		}
870 		sbdsp_mix_write(sc, SBP_RECORD_SOURCE, sbport | sc->in_filter);
871 		break;
872 	case SBM_CT1XX5:
873 	case SBM_CT1745:
874 		if (mask & ~((1<<SB_MIDI_VOL) | (1<<SB_LINE_IN_VOL) |
875 			     (1<<SB_CD_VOL) | (1<<SB_MIC_VOL)))
876 			return EINVAL;
877 		bitsr = 0;
878 		if (mask & (1<<SB_MIDI_VOL))    bitsr |= SBP_MIDI_SRC_R;
879 		if (mask & (1<<SB_LINE_IN_VOL)) bitsr |= SBP_LINE_SRC_R;
880 		if (mask & (1<<SB_CD_VOL))      bitsr |= SBP_CD_SRC_R;
881 		bitsl = SB_SRC_R_TO_L(bitsr);
882 		if (mask & (1<<SB_MIC_VOL)) {
883 			bitsl |= SBP_MIC_SRC;
884 			bitsr |= SBP_MIC_SRC;
885 		}
886 		sbdsp_mix_write(sc, SBP_RECORD_SOURCE_L, bitsl);
887 		sbdsp_mix_write(sc, SBP_RECORD_SOURCE_R, bitsr);
888 		break;
889 	}
890 	sc->in_mask = mask;
891 
892 	return 0;
893 }
894 
895 int
896 sbdsp_speaker_ctl(void *addr, int newstate)
897 {
898 	struct sbdsp_softc *sc;
899 
900 	sc = addr;
901 	if (sc->sc_open == SB_OPEN_MIDI)
902 		return EBUSY;
903 
904 	if ((newstate == SPKR_ON) &&
905 	    (sc->spkr_state == SPKR_OFF)) {
906 		sbdsp_spkron(sc);
907 		sc->spkr_state = SPKR_ON;
908 	}
909 	if ((newstate == SPKR_OFF) &&
910 	    (sc->spkr_state == SPKR_ON)) {
911 		sbdsp_spkroff(sc);
912 		sc->spkr_state = SPKR_OFF;
913 	}
914 	return 0;
915 }
916 
917 int
918 sbdsp_round_blocksize(void *addr, int blk, int mode,
919     const audio_params_t *param)
920 {
921 	return blk & -4;	/* round to biggest sample size */
922 }
923 
924 int
925 sbdsp_open(void *addr, int flags)
926 {
927 	struct sbdsp_softc *sc;
928 	int error, state;
929 
930 	sc = addr;
931 	DPRINTF(("sbdsp_open: sc=%p\n", sc));
932 
933 	if (sc->sc_open != SB_CLOSED)
934 		return EBUSY;
935 	sc->sc_open = SB_OPEN_AUDIO;
936 	state = 0;
937 
938 	if (sc->sc_drq8 != -1) {
939 		error = isa_drq_alloc(sc->sc_ic, sc->sc_drq8);
940 		if (error != 0)
941 			goto bad;
942 		state |= 1;
943 	}
944 
945 	if (sc->sc_drq16 != -1 && sc->sc_drq16 != sc->sc_drq8) {
946 		error = isa_drq_alloc(sc->sc_ic, sc->sc_drq16);
947 		if (error != 0)
948 			goto bad;
949 		state |= 2;
950 	}
951 
952 
953 	if (sbdsp_reset(sc) != 0) {
954 		error = EIO;
955 		goto bad;
956 	}
957 
958 	if (ISSBPRO(sc) &&
959 	    sbdsp_wdsp(sc, SB_DSP_RECORD_MONO) < 0) {
960 		DPRINTF(("sbdsp_open: can't set mono mode\n"));
961 		/* we'll readjust when it's time for DMA. */
962 	}
963 
964 	/*
965 	 * Leave most things as they were; users must change things if
966 	 * the previous process didn't leave it they way they wanted.
967 	 * Looked at another way, it's easy to set up a configuration
968 	 * in one program and leave it for another to inherit.
969 	 */
970 	DPRINTF(("sbdsp_open: opened\n"));
971 
972 	return 0;
973 
974 bad:
975 	if (state & 1)
976 		isa_drq_free(sc->sc_ic, sc->sc_drq8);
977 	if (state & 2)
978 		isa_drq_free(sc->sc_ic, sc->sc_drq16);
979 
980 	sc->sc_open = SB_CLOSED;
981 	return error;
982 }
983 
984 void
985 sbdsp_close(void *addr)
986 {
987 	struct sbdsp_softc *sc;
988 
989 	sc = addr;
990 	DPRINTF(("sbdsp_close: sc=%p\n", sc));
991 
992 	sbdsp_spkroff(sc);
993 	sc->spkr_state = SPKR_OFF;
994 
995 	sc->sc_intr8 = 0;
996 	sc->sc_intr16 = 0;
997 
998 	if (sc->sc_drq8 != -1)
999 		isa_drq_free(sc->sc_ic, sc->sc_drq8);
1000 	if (sc->sc_drq16 != -1 && sc->sc_drq16 != sc->sc_drq8)
1001 		isa_drq_free(sc->sc_ic, sc->sc_drq16);
1002 
1003 	sc->sc_open = SB_CLOSED;
1004 	DPRINTF(("sbdsp_close: closed\n"));
1005 }
1006 
1007 /*
1008  * Lower-level routines
1009  */
1010 
1011 /*
1012  * Reset the card.
1013  * Return non-zero if the card isn't detected.
1014  */
1015 int
1016 sbdsp_reset(struct sbdsp_softc *sc)
1017 {
1018 	bus_space_tag_t iot;
1019 	bus_space_handle_t ioh;
1020 
1021 	iot = sc->sc_iot;
1022 	ioh = sc->sc_ioh;
1023 	sc->sc_intr8 = 0;
1024 	sc->sc_intr16 = 0;
1025 	sc->sc_intrm = 0;
1026 
1027 	/*
1028 	 * See SBK, section 11.3.
1029 	 * We pulse a reset signal into the card.
1030 	 * Gee, what a brilliant hardware design.
1031 	 */
1032 	bus_space_write_1(iot, ioh, SBP_DSP_RESET, 1);
1033 	delay(10);
1034 	bus_space_write_1(iot, ioh, SBP_DSP_RESET, 0);
1035 	delay(30);
1036 	if (sbdsp_rdsp(sc) != SB_MAGIC)
1037 		return -1;
1038 
1039 	return 0;
1040 }
1041 
1042 /*
1043  * Write a byte to the dsp.
1044  * We are at the mercy of the card as we use a
1045  * polling loop and wait until it can take the byte.
1046  */
1047 int
1048 sbdsp_wdsp(struct sbdsp_softc *sc, int v)
1049 {
1050 	bus_space_tag_t iot;
1051 	bus_space_handle_t ioh;
1052 	int i;
1053 	u_char x;
1054 
1055 	iot = sc->sc_iot;
1056 	ioh = sc->sc_ioh;
1057 	for (i = SBDSP_NPOLL; --i >= 0; ) {
1058 		x = bus_space_read_1(iot, ioh, SBP_DSP_WSTAT);
1059 		delay(10);
1060 		if ((x & SB_DSP_BUSY) == 0) {
1061 			bus_space_write_1(iot, ioh, SBP_DSP_WRITE, v);
1062 			delay(10);
1063 			return 0;
1064 		}
1065 	}
1066 	++sberr.wdsp;
1067 	return -1;
1068 }
1069 
1070 /*
1071  * Read a byte from the DSP, using polling.
1072  */
1073 int
1074 sbdsp_rdsp(struct sbdsp_softc *sc)
1075 {
1076 	bus_space_tag_t iot;
1077 	bus_space_handle_t ioh;
1078 	int i;
1079 	u_char x;
1080 
1081 	iot = sc->sc_iot;
1082 	ioh = sc->sc_ioh;
1083 	for (i = SBDSP_NPOLL; --i >= 0; ) {
1084 		x = bus_space_read_1(iot, ioh, SBP_DSP_RSTAT);
1085 		delay(10);
1086 		if (x & SB_DSP_READY) {
1087 			x = bus_space_read_1(iot, ioh, SBP_DSP_READ);
1088 			delay(10);
1089 			return x;
1090 		}
1091 	}
1092 	++sberr.rdsp;
1093 	return -1;
1094 }
1095 
1096 void
1097 sbdsp_pause(struct sbdsp_softc *sc)
1098 {
1099 
1100 	KASSERT(mutex_owned(&sc->sc_intr_lock));
1101 	mutex_spin_exit(&sc->sc_intr_lock);
1102 	(void)kpause("sbpause", false, hz/8, &sc->sc_lock);
1103 	mutex_spin_enter(&sc->sc_intr_lock);
1104 }
1105 
1106 /*
1107  * Turn on the speaker.  The SBK documention says this operation
1108  * can take up to 1/10 of a second.  Higher level layers should
1109  * probably let the task sleep for this amount of time after
1110  * calling here.  Otherwise, things might not work (because
1111  * sbdsp_wdsp() and sbdsp_rdsp() will probably timeout.)
1112  *
1113  * These engineers had their heads up their ass when
1114  * they designed this card.
1115  */
1116 void
1117 sbdsp_spkron(struct sbdsp_softc *sc)
1118 {
1119 
1120 	(void)sbdsp_wdsp(sc, SB_DSP_SPKR_ON);
1121 	sbdsp_pause(sc);
1122 }
1123 
1124 /*
1125  * Turn off the speaker; see comment above.
1126  */
1127 void
1128 sbdsp_spkroff(struct sbdsp_softc *sc)
1129 {
1130 
1131 	(void)sbdsp_wdsp(sc, SB_DSP_SPKR_OFF);
1132 	sbdsp_pause(sc);
1133 }
1134 
1135 /*
1136  * Read the version number out of the card.
1137  * Store version information in the softc.
1138  */
1139 void
1140 sbversion(struct sbdsp_softc *sc)
1141 {
1142 	int v;
1143 
1144 	sc->sc_model = SB_UNK;
1145 	sc->sc_version = 0;
1146 	if (sbdsp_wdsp(sc, SB_DSP_VERSION) < 0)
1147 		return;
1148 	v = sbdsp_rdsp(sc) << 8;
1149 	v |= sbdsp_rdsp(sc);
1150 	if (v < 0)
1151 		return;
1152 	sc->sc_version = v;
1153 	switch(SBVER_MAJOR(v)) {
1154 	case 1:
1155 		sc->sc_mixer_model = SBM_NONE;
1156 		sc->sc_model = SB_1;
1157 		break;
1158 	case 2:
1159 		/* Some SB2 have a mixer, some don't. */
1160 		sbdsp_mix_write(sc, SBP_1335_MASTER_VOL, 0x04);
1161 		sbdsp_mix_write(sc, SBP_1335_MIDI_VOL,   0x06);
1162 		/* Check if we can read back the mixer values. */
1163 		if ((sbdsp_mix_read(sc, SBP_1335_MASTER_VOL) & 0x0e) == 0x04 &&
1164 		    (sbdsp_mix_read(sc, SBP_1335_MIDI_VOL)   & 0x0e) == 0x06)
1165 			sc->sc_mixer_model = SBM_CT1335;
1166 		else
1167 			sc->sc_mixer_model = SBM_NONE;
1168 		if (SBVER_MINOR(v) == 0)
1169 			sc->sc_model = SB_20;
1170 		else
1171 			sc->sc_model = SB_2x;
1172 		break;
1173 	case 3:
1174 		sc->sc_mixer_model = SBM_CT1345;
1175 		sc->sc_model = SB_PRO;
1176 		break;
1177 	case 4:
1178 #if 0
1179 /* XXX This does not work */
1180 		/* Most SB16 have a tone controls, but some don't. */
1181 		sbdsp_mix_write(sc, SB16P_TREBLE_L, 0x80);
1182 		/* Check if we can read back the mixer value. */
1183 		if ((sbdsp_mix_read(sc, SB16P_TREBLE_L) & 0xf0) == 0x80)
1184 			sc->sc_mixer_model = SBM_CT1745;
1185 		else
1186 			sc->sc_mixer_model = SBM_CT1XX5;
1187 #else
1188 		sc->sc_mixer_model = SBM_CT1745;
1189 #endif
1190 #if 0
1191 /* XXX figure out a good way of determining the model */
1192 		/* XXX what about SB_32 */
1193 		if (SBVER_MINOR(v) == 16)
1194 			sc->sc_model = SB_64;
1195 		else
1196 #endif
1197 			sc->sc_model = SB_16;
1198 		break;
1199 	}
1200 }
1201 
1202 int
1203 sbdsp_set_timeconst(struct sbdsp_softc *sc, int tc)
1204 {
1205 
1206 	DPRINTF(("sbdsp_set_timeconst: sc=%p tc=%d\n", sc, tc));
1207 	if (sbdsp_wdsp(sc, SB_DSP_TIMECONST) < 0 ||
1208 	    sbdsp_wdsp(sc, tc) < 0)
1209 		return EIO;
1210 	return 0;
1211 }
1212 
1213 int
1214 sbdsp16_set_rate(struct sbdsp_softc *sc, int cmd, int rate)
1215 {
1216 
1217 	DPRINTF(("sbdsp16_set_rate: sc=%p cmd=0x%02x rate=%d\n", sc, cmd,
1218 	    rate));
1219 	if (sbdsp_wdsp(sc, cmd) < 0 ||
1220 	    sbdsp_wdsp(sc, rate >> 8) < 0 ||
1221 	    sbdsp_wdsp(sc, rate) < 0)
1222 		return EIO;
1223 	return 0;
1224 }
1225 
1226 int
1227 sbdsp_trigger_input(
1228 	void *addr,
1229 	void *start, void *end,
1230 	int blksize,
1231 	void (*intr)(void *),
1232 	void *arg,
1233 	const audio_params_t *param)
1234 {
1235 	struct sbdsp_softc *sc;
1236 	int stereo;
1237 	int width;
1238 	int filter;
1239 
1240 	sc = addr;
1241 	stereo = param->channels == 2;
1242 	width = param->precision;
1243 #ifdef DIAGNOSTIC
1244 	if (stereo && (blksize & 1)) {
1245 		DPRINTF(("stereo record odd bytes (%d)\n", blksize));
1246 		return EIO;
1247 	}
1248 	if (sc->sc_i.run != SB_NOTRUNNING)
1249 		printf("sbdsp_trigger_input: already running\n");
1250 #endif
1251 
1252 	sc->sc_intrr = intr;
1253 	sc->sc_argr = arg;
1254 
1255 	if (width == 8) {
1256 #ifdef DIAGNOSTIC
1257 		if (sc->sc_i.dmachan != sc->sc_drq8) {
1258 			printf("sbdsp_trigger_input: width=%d bad chan %d\n",
1259 			    width, sc->sc_i.dmachan);
1260 			return EIO;
1261 		}
1262 #endif
1263 		sc->sc_intr8 = sbdsp_block_input;
1264 	} else {
1265 #ifdef DIAGNOSTIC
1266 		if (sc->sc_i.dmachan != sc->sc_drq16) {
1267 			printf("sbdsp_trigger_input: width=%d bad chan %d\n",
1268 			    width, sc->sc_i.dmachan);
1269 			return EIO;
1270 		}
1271 #endif
1272 		sc->sc_intr16 = sbdsp_block_input;
1273 	}
1274 
1275 	if ((sc->sc_model == SB_JAZZ) ? (sc->sc_i.dmachan > 3) : (width == 16))
1276 		blksize >>= 1;
1277 	--blksize;
1278 	sc->sc_i.blksize = blksize;
1279 
1280 	if (ISSBPRO(sc)) {
1281 		if (sbdsp_wdsp(sc, sc->sc_i.modep->cmdchan) < 0)
1282 			return EIO;
1283 		filter = stereo ? SBP_FILTER_OFF : sc->in_filter;
1284 		sbdsp_mix_write(sc, SBP_INFILTER,
1285 		    (sbdsp_mix_read(sc, SBP_INFILTER) & ~SBP_IFILTER_MASK) |
1286 		    filter);
1287 	}
1288 
1289 	if (ISSB16CLASS(sc)) {
1290 		if (sbdsp16_set_rate(sc, SB_DSP16_INPUTRATE, sc->sc_i.rate)) {
1291 			DPRINTF(("sbdsp_trigger_input: rate=%d set failed\n",
1292 				 sc->sc_i.rate));
1293 			return EIO;
1294 		}
1295 	} else {
1296 		if (sbdsp_set_timeconst(sc, sc->sc_i.tc)) {
1297 			DPRINTF(("sbdsp_trigger_input: tc=%d set failed\n",
1298 				 sc->sc_i.rate));
1299 			return EIO;
1300 		}
1301 	}
1302 
1303 	DPRINTF(("sbdsp: DMA start loop input start=%p end=%p chan=%d\n",
1304 	    start, end, sc->sc_i.dmachan));
1305 	isa_dmastart(sc->sc_ic, sc->sc_i.dmachan, start,
1306 	    (char *)end - (char *)start, NULL,
1307 	    DMAMODE_READ | DMAMODE_LOOPDEMAND, BUS_DMA_NOWAIT);
1308 
1309 	return sbdsp_block_input(addr);
1310 }
1311 
1312 int
1313 sbdsp_block_input(void *addr)
1314 {
1315 	struct sbdsp_softc *sc;
1316 	int cc;
1317 
1318 	sc = addr;
1319 	cc = sc->sc_i.blksize;
1320 	DPRINTFN(2, ("sbdsp_block_input: sc=%p cc=%d\n", addr, cc));
1321 
1322 	if (sc->sc_i.run != SB_NOTRUNNING)
1323 		sc->sc_intrr(sc->sc_argr);
1324 
1325 	if (sc->sc_model == SB_1) {
1326 		/* Non-looping mode, start DMA */
1327 		if (sbdsp_wdsp(sc, sc->sc_i.modep->cmd) < 0 ||
1328 		    sbdsp_wdsp(sc, cc) < 0 ||
1329 		    sbdsp_wdsp(sc, cc >> 8) < 0) {
1330 			DPRINTF(("sbdsp_block_input: SB1 DMA start failed\n"));
1331 			return EIO;
1332 		}
1333 		sc->sc_i.run = SB_RUNNING;
1334 	} else if (sc->sc_i.run == SB_NOTRUNNING) {
1335 		/* Initialize looping PCM */
1336 		if (ISSB16CLASS(sc)) {
1337 			DPRINTFN(3, ("sbdsp16 input command cmd=0x%02x bmode=0x%02x cc=%d\n",
1338 			    sc->sc_i.modep->cmd, sc->sc_i.bmode, cc));
1339 			if (sbdsp_wdsp(sc, sc->sc_i.modep->cmd) < 0 ||
1340 			    sbdsp_wdsp(sc, sc->sc_i.bmode) < 0 ||
1341 			    sbdsp_wdsp(sc, cc) < 0 ||
1342 			    sbdsp_wdsp(sc, cc >> 8) < 0) {
1343 				DPRINTF(("sbdsp_block_input: SB16 DMA start failed\n"));
1344 				return EIO;
1345 			}
1346 		} else {
1347 			DPRINTF(("sbdsp_block_input: set blocksize=%d\n", cc));
1348 			if (sbdsp_wdsp(sc, SB_DSP_BLOCKSIZE) < 0 ||
1349 			    sbdsp_wdsp(sc, cc) < 0 ||
1350 			    sbdsp_wdsp(sc, cc >> 8) < 0) {
1351 				DPRINTF(("sbdsp_block_input: SB2 DMA blocksize failed\n"));
1352 				return EIO;
1353 			}
1354 			if (sbdsp_wdsp(sc, sc->sc_i.modep->cmd) < 0) {
1355 				DPRINTF(("sbdsp_block_input: SB2 DMA start failed\n"));
1356 				return EIO;
1357 			}
1358 		}
1359 		sc->sc_i.run = SB_LOOPING;
1360 	}
1361 
1362 	return 0;
1363 }
1364 
1365 int
1366 sbdsp_trigger_output(
1367 	void *addr,
1368 	void *start, void *end,
1369 	int blksize,
1370 	void (*intr)(void *),
1371 	void *arg,
1372 	const audio_params_t *param)
1373 {
1374 	struct sbdsp_softc *sc;
1375 	int stereo;
1376 	int width;
1377 	int cmd;
1378 
1379 	sc = addr;
1380 	stereo = param->channels == 2;
1381 	width = param->precision;
1382 #ifdef DIAGNOSTIC
1383 	if (stereo && (blksize & 1)) {
1384 		DPRINTF(("stereo playback odd bytes (%d)\n", blksize));
1385 		return EIO;
1386 	}
1387 	if (sc->sc_o.run != SB_NOTRUNNING)
1388 		printf("sbdsp_trigger_output: already running\n");
1389 #endif
1390 
1391 	sc->sc_intrp = intr;
1392 	sc->sc_argp = arg;
1393 
1394 	if (width == 8) {
1395 #ifdef DIAGNOSTIC
1396 		if (sc->sc_o.dmachan != sc->sc_drq8) {
1397 			printf("sbdsp_trigger_output: width=%d bad chan %d\n",
1398 			    width, sc->sc_o.dmachan);
1399 			return EIO;
1400 		}
1401 #endif
1402 		sc->sc_intr8 = sbdsp_block_output;
1403 	} else {
1404 #ifdef DIAGNOSTIC
1405 		if (sc->sc_o.dmachan != sc->sc_drq16) {
1406 			printf("sbdsp_trigger_output: width=%d bad chan %d\n",
1407 			    width, sc->sc_o.dmachan);
1408 			return EIO;
1409 		}
1410 #endif
1411 		sc->sc_intr16 = sbdsp_block_output;
1412 	}
1413 
1414 	if ((sc->sc_model == SB_JAZZ) ? (sc->sc_o.dmachan > 3) : (width == 16))
1415 		blksize >>= 1;
1416 	--blksize;
1417 	sc->sc_o.blksize = blksize;
1418 
1419 	if (ISSBPRO(sc)) {
1420 		/* make sure we re-set stereo mixer bit when we start output. */
1421 		sbdsp_mix_write(sc, SBP_STEREO,
1422 		    (sbdsp_mix_read(sc, SBP_STEREO) & ~SBP_PLAYMODE_MASK) |
1423 		    (stereo ?  SBP_PLAYMODE_STEREO : SBP_PLAYMODE_MONO));
1424 		cmd = sc->sc_o.modep->cmdchan;
1425 		if (cmd && sbdsp_wdsp(sc, cmd) < 0)
1426 			return EIO;
1427 	}
1428 
1429 	if (ISSB16CLASS(sc)) {
1430 		if (sbdsp16_set_rate(sc, SB_DSP16_OUTPUTRATE, sc->sc_o.rate)) {
1431 			DPRINTF(("sbdsp_trigger_output: rate=%d set failed\n",
1432 				 sc->sc_o.rate));
1433 			return EIO;
1434 		}
1435 	} else {
1436 		if (sbdsp_set_timeconst(sc, sc->sc_o.tc)) {
1437 			DPRINTF(("sbdsp_trigger_output: tc=%d set failed\n",
1438 				 sc->sc_o.rate));
1439 			return EIO;
1440 		}
1441 	}
1442 
1443 	DPRINTF(("sbdsp: DMA start loop output start=%p end=%p chan=%d\n",
1444 	    start, end, sc->sc_o.dmachan));
1445 	isa_dmastart(sc->sc_ic, sc->sc_o.dmachan, start,
1446 	    (char *)end - (char *)start, NULL,
1447 	    DMAMODE_WRITE | DMAMODE_LOOPDEMAND, BUS_DMA_NOWAIT);
1448 
1449 	return sbdsp_block_output(addr);
1450 }
1451 
1452 int
1453 sbdsp_block_output(void *addr)
1454 {
1455 	struct sbdsp_softc *sc;
1456 	int cc;
1457 
1458 	sc = addr;
1459 	cc = sc->sc_o.blksize;
1460 	DPRINTFN(2, ("sbdsp_block_output: sc=%p cc=%d\n", addr, cc));
1461 
1462 	if (sc->sc_o.run != SB_NOTRUNNING)
1463 		sc->sc_intrp(sc->sc_argp);
1464 
1465 	if (sc->sc_model == SB_1) {
1466 		/* Non-looping mode, initialized. Start DMA and PCM */
1467 		if (sbdsp_wdsp(sc, sc->sc_o.modep->cmd) < 0 ||
1468 		    sbdsp_wdsp(sc, cc) < 0 ||
1469 		    sbdsp_wdsp(sc, cc >> 8) < 0) {
1470 			DPRINTF(("sbdsp_block_output: SB1 DMA start failed\n"));
1471 			return EIO;
1472 		}
1473 		sc->sc_o.run = SB_RUNNING;
1474 	} else if (sc->sc_o.run == SB_NOTRUNNING) {
1475 		/* Initialize looping PCM */
1476 		if (ISSB16CLASS(sc)) {
1477 			DPRINTF(("sbdsp_block_output: SB16 cmd=0x%02x bmode=0x%02x cc=%d\n",
1478 			    sc->sc_o.modep->cmd,sc->sc_o.bmode, cc));
1479 			if (sbdsp_wdsp(sc, sc->sc_o.modep->cmd) < 0 ||
1480 			    sbdsp_wdsp(sc, sc->sc_o.bmode) < 0 ||
1481 			    sbdsp_wdsp(sc, cc) < 0 ||
1482 			    sbdsp_wdsp(sc, cc >> 8) < 0) {
1483 				DPRINTF(("sbdsp_block_output: SB16 DMA start failed\n"));
1484 				return EIO;
1485 			}
1486 		} else {
1487 			DPRINTF(("sbdsp_block_output: set blocksize=%d\n", cc));
1488 			if (sbdsp_wdsp(sc, SB_DSP_BLOCKSIZE) < 0 ||
1489 			    sbdsp_wdsp(sc, cc) < 0 ||
1490 			    sbdsp_wdsp(sc, cc >> 8) < 0) {
1491 				DPRINTF(("sbdsp_block_output: SB2 DMA blocksize failed\n"));
1492 				return EIO;
1493 			}
1494 			if (sbdsp_wdsp(sc, sc->sc_o.modep->cmd) < 0) {
1495 				DPRINTF(("sbdsp_block_output: SB2 DMA start failed\n"));
1496 				return EIO;
1497 			}
1498 		}
1499 		sc->sc_o.run = SB_LOOPING;
1500 	}
1501 
1502 	return 0;
1503 }
1504 
1505 int
1506 sbdsp_halt_output(void *addr)
1507 {
1508 	struct sbdsp_softc *sc;
1509 
1510 	sc = addr;
1511 	if (sc->sc_o.run != SB_NOTRUNNING) {
1512 		if (sbdsp_wdsp(sc, sc->sc_o.modep->halt) < 0)
1513 			printf("sbdsp_halt_output: failed to halt\n");
1514 		isa_dmaabort(sc->sc_ic, sc->sc_o.dmachan);
1515 		sc->sc_o.run = SB_NOTRUNNING;
1516 	}
1517 	return 0;
1518 }
1519 
1520 int
1521 sbdsp_halt_input(void *addr)
1522 {
1523 	struct sbdsp_softc *sc;
1524 
1525 	sc = addr;
1526 	if (sc->sc_i.run != SB_NOTRUNNING) {
1527 		if (sbdsp_wdsp(sc, sc->sc_i.modep->halt) < 0)
1528 			printf("sbdsp_halt_input: failed to halt\n");
1529 		isa_dmaabort(sc->sc_ic, sc->sc_i.dmachan);
1530 		sc->sc_i.run = SB_NOTRUNNING;
1531 	}
1532 	return 0;
1533 }
1534 
1535 /*
1536  * Only the DSP unit on the sound blaster generates interrupts.
1537  * There are three cases of interrupt: reception of a midi byte
1538  * (when mode is enabled), completion of DMA transmission, or
1539  * completion of a DMA reception.
1540  *
1541  * If there is interrupt sharing or a spurious interrupt occurs
1542  * there is no way to distinguish this on an SB2.  So if you have
1543  * an SB2 and experience problems, buy an SB16 (it's only $40).
1544  */
1545 int
1546 sbdsp_intr(void *arg)
1547 {
1548 	struct sbdsp_softc *sc = arg;
1549 #if NMPU > 0
1550 	struct mpu_softc *sc_mpu = device_private(sc->sc_mpudev);
1551 #endif
1552 	u_char irq;
1553 
1554 	DPRINTFN(2, ("sbdsp_intr: intr8=%p, intr16=%p\n",
1555 		   sc->sc_intr8, sc->sc_intr16));
1556 
1557 	mutex_spin_enter(&sc->sc_intr_lock);
1558 	if (ISSB16CLASS(sc)) {
1559 		irq = sbdsp_mix_read(sc, SBP_IRQ_STATUS);
1560 		if ((irq & (SBP_IRQ_DMA8 | SBP_IRQ_DMA16 | SBP_IRQ_MPU401))
1561 		    == 0) {
1562 			mutex_spin_exit(&sc->sc_intr_lock);
1563 			DPRINTF(("sbdsp_intr: Spurious interrupt 0x%x\n", irq));
1564 			return 0;
1565 		}
1566 	} else {
1567 		/* XXXX CHECK FOR INTERRUPT */
1568 		irq = SBP_IRQ_DMA8;
1569 	}
1570 
1571 	sc->sc_interrupts++;
1572 	delay(10);		/* XXX why? */
1573 
1574 	/* clear interrupt */
1575 	if (irq & SBP_IRQ_DMA8) {
1576 		bus_space_read_1(sc->sc_iot, sc->sc_ioh, SBP_DSP_IRQACK8);
1577 		if (sc->sc_intr8)
1578 			sc->sc_intr8(arg);
1579 	}
1580 	if (irq & SBP_IRQ_DMA16) {
1581 		bus_space_read_1(sc->sc_iot, sc->sc_ioh, SBP_DSP_IRQACK16);
1582 		if (sc->sc_intr16)
1583 			sc->sc_intr16(arg);
1584 	}
1585 #if NMPU > 0
1586 	if ((irq & SBP_IRQ_MPU401) && sc_mpu) {
1587 		mpu_intr(sc_mpu);
1588 	}
1589 #endif
1590 
1591 	mutex_spin_exit(&sc->sc_intr_lock);
1592 	return 1;
1593 }
1594 
1595 /* Like val & mask, but make sure the result is correctly rounded. */
1596 #define MAXVAL 256
1597 static int
1598 sbdsp_adjust(int val, int mask)
1599 {
1600 
1601 	val += (MAXVAL - mask) >> 1;
1602 	if (val >= MAXVAL)
1603 		val = MAXVAL-1;
1604 	return val & mask;
1605 }
1606 
1607 void
1608 sbdsp_set_mixer_gain(struct sbdsp_softc *sc, int port)
1609 {
1610 	int src, gain;
1611 
1612 	KASSERT(mutex_owned(&sc->sc_lock));
1613 	KASSERT(mutex_owned(&sc->sc_intr_lock));
1614 
1615 	switch(sc->sc_mixer_model) {
1616 	case SBM_NONE:
1617 		return;
1618 	case SBM_CT1335:
1619 		gain = SB_1335_GAIN(sc->gain[port][SB_LEFT]);
1620 		switch(port) {
1621 		case SB_MASTER_VOL:
1622 			src = SBP_1335_MASTER_VOL;
1623 			break;
1624 		case SB_MIDI_VOL:
1625 			src = SBP_1335_MIDI_VOL;
1626 			break;
1627 		case SB_CD_VOL:
1628 			src = SBP_1335_CD_VOL;
1629 			break;
1630 		case SB_VOICE_VOL:
1631 			src = SBP_1335_VOICE_VOL;
1632 			gain = SB_1335_MASTER_GAIN(sc->gain[port][SB_LEFT]);
1633 			break;
1634 		default:
1635 			return;
1636 		}
1637 		sbdsp_mix_write(sc, src, gain);
1638 		break;
1639 	case SBM_CT1345:
1640 		gain = SB_STEREO_GAIN(sc->gain[port][SB_LEFT],
1641 				      sc->gain[port][SB_RIGHT]);
1642 		switch (port) {
1643 		case SB_MIC_VOL:
1644 			src = SBP_MIC_VOL;
1645 			gain = SB_MIC_GAIN(sc->gain[port][SB_LEFT]);
1646 			break;
1647 		case SB_MASTER_VOL:
1648 			src = SBP_MASTER_VOL;
1649 			break;
1650 		case SB_LINE_IN_VOL:
1651 			src = SBP_LINE_VOL;
1652 			break;
1653 		case SB_VOICE_VOL:
1654 			src = SBP_VOICE_VOL;
1655 			break;
1656 		case SB_MIDI_VOL:
1657 			src = SBP_MIDI_VOL;
1658 			break;
1659 		case SB_CD_VOL:
1660 			src = SBP_CD_VOL;
1661 			break;
1662 		default:
1663 			return;
1664 		}
1665 		sbdsp_mix_write(sc, src, gain);
1666 		break;
1667 	case SBM_CT1XX5:
1668 	case SBM_CT1745:
1669 		switch (port) {
1670 		case SB_MIC_VOL:
1671 			src = SB16P_MIC_L;
1672 			break;
1673 		case SB_MASTER_VOL:
1674 			src = SB16P_MASTER_L;
1675 			break;
1676 		case SB_LINE_IN_VOL:
1677 			src = SB16P_LINE_L;
1678 			break;
1679 		case SB_VOICE_VOL:
1680 			src = SB16P_VOICE_L;
1681 			break;
1682 		case SB_MIDI_VOL:
1683 			src = SB16P_MIDI_L;
1684 			break;
1685 		case SB_CD_VOL:
1686 			src = SB16P_CD_L;
1687 			break;
1688 		case SB_INPUT_GAIN:
1689 			src = SB16P_INPUT_GAIN_L;
1690 			break;
1691 		case SB_OUTPUT_GAIN:
1692 			src = SB16P_OUTPUT_GAIN_L;
1693 			break;
1694 		case SB_TREBLE:
1695 			src = SB16P_TREBLE_L;
1696 			break;
1697 		case SB_BASS:
1698 			src = SB16P_BASS_L;
1699 			break;
1700 		case SB_PCSPEAKER:
1701 			sbdsp_mix_write(sc, SB16P_PCSPEAKER,
1702 			    sc->gain[port][SB_LEFT]);
1703 			return;
1704 		default:
1705 			return;
1706 		}
1707 		sbdsp_mix_write(sc, src, sc->gain[port][SB_LEFT]);
1708 		sbdsp_mix_write(sc, SB16P_L_TO_R(src),
1709 		    sc->gain[port][SB_RIGHT]);
1710 		break;
1711 	}
1712 }
1713 
1714 int
1715 sbdsp_mixer_set_port(void *addr, mixer_ctrl_t *cp)
1716 {
1717 	struct sbdsp_softc *sc;
1718 	int lgain, rgain;
1719 	int mask, bits;
1720 	int lmask, rmask, lbits, rbits;
1721 	int mute, swap;
1722 	int error;
1723 
1724 	sc = addr;
1725 
1726 	KASSERT(mutex_owned(&sc->sc_lock));
1727 
1728 	if (sc->sc_open == SB_OPEN_MIDI)
1729 		return EBUSY;
1730 
1731 	DPRINTF(("sbdsp_mixer_set_port: port=%d num_channels=%d\n", cp->dev,
1732 	    cp->un.value.num_channels));
1733 
1734 	if (sc->sc_mixer_model == SBM_NONE)
1735 		return EINVAL;
1736 
1737 	mutex_spin_enter(&sc->sc_intr_lock);
1738 	error = 0;
1739 
1740 	switch (cp->dev) {
1741 	case SB_TREBLE:
1742 	case SB_BASS:
1743 		if (sc->sc_mixer_model == SBM_CT1345 ||
1744 		    sc->sc_mixer_model == SBM_CT1XX5) {
1745 			if (cp->type != AUDIO_MIXER_ENUM) {
1746 				mutex_spin_exit(&sc->sc_intr_lock);
1747 				return EINVAL;
1748 			}
1749 			switch (cp->dev) {
1750 			case SB_TREBLE:
1751 				sbdsp_set_ifilter(addr,
1752 				    cp->un.ord ? SB_TREBLE : 0);
1753 				mutex_spin_exit(&sc->sc_intr_lock);
1754 				return 0;
1755 			case SB_BASS:
1756 				sbdsp_set_ifilter(addr,
1757 				    cp->un.ord ? SB_BASS : 0);
1758 				mutex_spin_exit(&sc->sc_intr_lock);
1759 				return 0;
1760 			}
1761 		}
1762 	case SB_PCSPEAKER:
1763 	case SB_INPUT_GAIN:
1764 	case SB_OUTPUT_GAIN:
1765 		if (!ISSBM1745(sc)) {
1766 			error = EINVAL;
1767 			break;
1768 		}
1769 	case SB_MIC_VOL:
1770 	case SB_LINE_IN_VOL:
1771 		if (sc->sc_mixer_model == SBM_CT1335) {
1772 			error = EINVAL;
1773 			break;
1774 		}
1775 	case SB_VOICE_VOL:
1776 	case SB_MIDI_VOL:
1777 	case SB_CD_VOL:
1778 	case SB_MASTER_VOL:
1779 		if (cp->type != AUDIO_MIXER_VALUE) {
1780 			error = EINVAL;
1781 			break;
1782 		}
1783 
1784 		/*
1785 		 * All the mixer ports are stereo except for the microphone.
1786 		 * If we get a single-channel gain value passed in, then we
1787 		 * duplicate it to both left and right channels.
1788 		 */
1789 
1790 		switch (cp->dev) {
1791 		case SB_MIC_VOL:
1792 			if (cp->un.value.num_channels != 1) {
1793 				error = EINVAL;
1794 				break;
1795 			}
1796 
1797 			lgain = rgain = SB_ADJUST_MIC_GAIN(sc,
1798 			    cp->un.value.level[AUDIO_MIXER_LEVEL_MONO]);
1799 			break;
1800 		case SB_PCSPEAKER:
1801 			if (cp->un.value.num_channels != 1) {
1802 				error = EINVAL;
1803 				break;
1804 			}
1805 			/* fall into */
1806 		case SB_INPUT_GAIN:
1807 		case SB_OUTPUT_GAIN:
1808 			lgain = rgain = SB_ADJUST_2_GAIN(sc,
1809 			    cp->un.value.level[AUDIO_MIXER_LEVEL_MONO]);
1810 			break;
1811 		default:
1812 			switch (cp->un.value.num_channels) {
1813 			case 1:
1814 				lgain = rgain = SB_ADJUST_GAIN(sc,
1815 				    cp->un.value.level[AUDIO_MIXER_LEVEL_MONO]);
1816 				break;
1817 			case 2:
1818 				if (sc->sc_mixer_model == SBM_CT1335) {
1819 					error = EINVAL;
1820 					break;
1821 				}
1822 				lgain = SB_ADJUST_GAIN(sc,
1823 				    cp->un.value.level[AUDIO_MIXER_LEVEL_LEFT]);
1824 				rgain = SB_ADJUST_GAIN(sc,
1825 				    cp->un.value.level[AUDIO_MIXER_LEVEL_RIGHT]);
1826 				break;
1827 			default:
1828 				error = EINVAL;
1829 				break;
1830 			}
1831 			break;
1832 		}
1833 		if (error == 0) {
1834 			sc->gain[cp->dev][SB_LEFT]  = lgain;
1835 			sc->gain[cp->dev][SB_RIGHT] = rgain;
1836 			sbdsp_set_mixer_gain(sc, cp->dev);
1837 		}
1838 		break;
1839 
1840 	case SB_RECORD_SOURCE:
1841 		if (ISSBM1745(sc)) {
1842 			if (cp->type != AUDIO_MIXER_SET)
1843 				error = EINVAL;
1844 			else
1845 				error = sbdsp_set_in_ports(sc, cp->un.mask);
1846 		} else {
1847 			if (cp->type != AUDIO_MIXER_ENUM)
1848 				error = EINVAL;
1849 			else {
1850 				sc->in_port = cp->un.ord;
1851 				error = sbdsp_set_in_ports(sc, 1 << cp->un.ord);
1852 			}
1853 		}
1854 		break;
1855 
1856 	case SB_AGC:
1857 		if (!ISSBM1745(sc) || cp->type != AUDIO_MIXER_ENUM)
1858 			error = EINVAL;
1859 		else
1860 			sbdsp_mix_write(sc, SB16P_AGC, cp->un.ord & 1);
1861 		break;
1862 
1863 	case SB_CD_OUT_MUTE:
1864 		mask = SB16P_SW_CD;
1865 		goto omute;
1866 	case SB_MIC_OUT_MUTE:
1867 		mask = SB16P_SW_MIC;
1868 		goto omute;
1869 	case SB_LINE_OUT_MUTE:
1870 		mask = SB16P_SW_LINE;
1871 	omute:
1872 		if (cp->type != AUDIO_MIXER_ENUM) {
1873 			error = EINVAL;
1874 			break;
1875 		}
1876 		bits = sbdsp_mix_read(sc, SB16P_OSWITCH);
1877 		sc->gain[cp->dev][SB_LR] = cp->un.ord != 0;
1878 		if (cp->un.ord)
1879 			bits = bits & ~mask;
1880 		else
1881 			bits = bits | mask;
1882 		sbdsp_mix_write(sc, SB16P_OSWITCH, bits);
1883 		break;
1884 
1885 	case SB_MIC_IN_MUTE:
1886 	case SB_MIC_SWAP:
1887 		lmask = rmask = SB16P_SW_MIC;
1888 		goto imute;
1889 	case SB_CD_IN_MUTE:
1890 	case SB_CD_SWAP:
1891 		lmask = SB16P_SW_CD_L;
1892 		rmask = SB16P_SW_CD_R;
1893 		goto imute;
1894 	case SB_LINE_IN_MUTE:
1895 	case SB_LINE_SWAP:
1896 		lmask = SB16P_SW_LINE_L;
1897 		rmask = SB16P_SW_LINE_R;
1898 		goto imute;
1899 	case SB_MIDI_IN_MUTE:
1900 	case SB_MIDI_SWAP:
1901 		lmask = SB16P_SW_MIDI_L;
1902 		rmask = SB16P_SW_MIDI_R;
1903 	imute:
1904 		if (cp->type != AUDIO_MIXER_ENUM) {
1905 			error = EINVAL;
1906 			break;
1907 		}
1908 		mask = lmask | rmask;
1909 		lbits = sbdsp_mix_read(sc, SB16P_ISWITCH_L) & ~mask;
1910 		rbits = sbdsp_mix_read(sc, SB16P_ISWITCH_R) & ~mask;
1911 		sc->gain[cp->dev][SB_LR] = cp->un.ord != 0;
1912 		if (SB_IS_IN_MUTE(cp->dev)) {
1913 			mute = cp->dev;
1914 			swap = mute - SB_CD_IN_MUTE + SB_CD_SWAP;
1915 		} else {
1916 			swap = cp->dev;
1917 			mute = swap + SB_CD_IN_MUTE - SB_CD_SWAP;
1918 		}
1919 		if (sc->gain[swap][SB_LR]) {
1920 			mask = lmask;
1921 			lmask = rmask;
1922 			rmask = mask;
1923 		}
1924 		if (!sc->gain[mute][SB_LR]) {
1925 			lbits = lbits | lmask;
1926 			rbits = rbits | rmask;
1927 		}
1928 		sbdsp_mix_write(sc, SB16P_ISWITCH_L, lbits);
1929 		sbdsp_mix_write(sc, SB16P_ISWITCH_L, rbits);
1930 		break;
1931 
1932 	default:
1933 		error = EINVAL;
1934 		break;
1935 	}
1936 
1937 	mutex_spin_exit(&sc->sc_intr_lock);
1938 	return error;
1939 }
1940 
1941 int
1942 sbdsp_mixer_get_port(void *addr, mixer_ctrl_t *cp)
1943 {
1944 	struct sbdsp_softc *sc;
1945 
1946 	sc = addr;
1947 
1948 	KASSERT(mutex_owned(&sc->sc_lock));
1949 
1950 	if (sc->sc_open == SB_OPEN_MIDI)
1951 		return EBUSY;
1952 
1953 	DPRINTF(("sbdsp_mixer_get_port: port=%d\n", cp->dev));
1954 
1955 	if (sc->sc_mixer_model == SBM_NONE)
1956 		return EINVAL;
1957 
1958 	mutex_spin_enter(&sc->sc_intr_lock);
1959 
1960 	switch (cp->dev) {
1961 	case SB_TREBLE:
1962 	case SB_BASS:
1963 		if (sc->sc_mixer_model == SBM_CT1345 ||
1964 		    sc->sc_mixer_model == SBM_CT1XX5) {
1965 			switch (cp->dev) {
1966 			case SB_TREBLE:
1967 				cp->un.ord = sbdsp_get_ifilter(addr) == SB_TREBLE;
1968 				mutex_spin_exit(&sc->sc_intr_lock);
1969 				return 0;
1970 			case SB_BASS:
1971 				cp->un.ord = sbdsp_get_ifilter(addr) == SB_BASS;
1972 				mutex_spin_exit(&sc->sc_intr_lock);
1973 				return 0;
1974 			}
1975 		}
1976 	case SB_PCSPEAKER:
1977 	case SB_INPUT_GAIN:
1978 	case SB_OUTPUT_GAIN:
1979 		if (!ISSBM1745(sc)) {
1980 			mutex_spin_exit(&sc->sc_intr_lock);
1981 			return EINVAL;
1982 		}
1983 	case SB_MIC_VOL:
1984 	case SB_LINE_IN_VOL:
1985 		if (sc->sc_mixer_model == SBM_CT1335) {
1986 			mutex_spin_exit(&sc->sc_intr_lock);
1987 			return EINVAL;
1988 		}
1989 	case SB_VOICE_VOL:
1990 	case SB_MIDI_VOL:
1991 	case SB_CD_VOL:
1992 	case SB_MASTER_VOL:
1993 		switch (cp->dev) {
1994 		case SB_MIC_VOL:
1995 		case SB_PCSPEAKER:
1996 			if (cp->un.value.num_channels != 1) {
1997 				mutex_spin_exit(&sc->sc_intr_lock);
1998 				return EINVAL;
1999 			}
2000 			/* fall into */
2001 		default:
2002 			switch (cp->un.value.num_channels) {
2003 			case 1:
2004 				cp->un.value.level[AUDIO_MIXER_LEVEL_MONO] =
2005 				    sc->gain[cp->dev][SB_LEFT];
2006 				break;
2007 			case 2:
2008 				cp->un.value.level[AUDIO_MIXER_LEVEL_LEFT] =
2009 				    sc->gain[cp->dev][SB_LEFT];
2010 				cp->un.value.level[AUDIO_MIXER_LEVEL_RIGHT] =
2011 				    sc->gain[cp->dev][SB_RIGHT];
2012 				break;
2013 			default:
2014 				mutex_spin_exit(&sc->sc_intr_lock);
2015 				return EINVAL;
2016 			}
2017 			break;
2018 		}
2019 		break;
2020 
2021 	case SB_RECORD_SOURCE:
2022 		if (ISSBM1745(sc))
2023 			cp->un.mask = sc->in_mask;
2024 		else
2025 			cp->un.ord = sc->in_port;
2026 		break;
2027 
2028 	case SB_AGC:
2029 		if (!ISSBM1745(sc)) {
2030 			mutex_spin_exit(&sc->sc_intr_lock);
2031 			return EINVAL;
2032 		}
2033 		cp->un.ord = sbdsp_mix_read(sc, SB16P_AGC);
2034 		break;
2035 
2036 	case SB_CD_IN_MUTE:
2037 	case SB_MIC_IN_MUTE:
2038 	case SB_LINE_IN_MUTE:
2039 	case SB_MIDI_IN_MUTE:
2040 	case SB_CD_SWAP:
2041 	case SB_MIC_SWAP:
2042 	case SB_LINE_SWAP:
2043 	case SB_MIDI_SWAP:
2044 	case SB_CD_OUT_MUTE:
2045 	case SB_MIC_OUT_MUTE:
2046 	case SB_LINE_OUT_MUTE:
2047 		cp->un.ord = sc->gain[cp->dev][SB_LR];
2048 		break;
2049 
2050 	default:
2051 		mutex_spin_exit(&sc->sc_intr_lock);
2052 		return EINVAL;
2053 	}
2054 
2055 	mutex_spin_exit(&sc->sc_intr_lock);
2056 
2057 	return 0;
2058 }
2059 
2060 int
2061 sbdsp_mixer_query_devinfo(void *addr, mixer_devinfo_t *dip)
2062 {
2063 	struct sbdsp_softc *sc = addr;
2064 	int chan, class, is1745;
2065 
2066 	sc = addr;
2067 	DPRINTF(("sbdsp_mixer_query_devinfo: model=%d index=%d\n",
2068 		 sc->sc_mixer_model, dip->index));
2069 
2070 	KASSERT(mutex_owned(&sc->sc_lock));
2071 
2072 	if (sc->sc_mixer_model == SBM_NONE)
2073 		return ENXIO;
2074 
2075 	chan = sc->sc_mixer_model == SBM_CT1335 ? 1 : 2;
2076 	is1745 = ISSBM1745(sc);
2077 	class = is1745 ? SB_INPUT_CLASS : SB_OUTPUT_CLASS;
2078 
2079 	switch (dip->index) {
2080 	case SB_MASTER_VOL:
2081 		dip->type = AUDIO_MIXER_VALUE;
2082 		dip->mixer_class = SB_OUTPUT_CLASS;
2083 		dip->prev = dip->next = AUDIO_MIXER_LAST;
2084 		strcpy(dip->label.name, AudioNmaster);
2085 		dip->un.v.num_channels = chan;
2086 		strcpy(dip->un.v.units.name, AudioNvolume);
2087 		return 0;
2088 	case SB_MIDI_VOL:
2089 		dip->type = AUDIO_MIXER_VALUE;
2090 		dip->mixer_class = class;
2091 		dip->prev = AUDIO_MIXER_LAST;
2092 		dip->next = is1745 ? SB_MIDI_IN_MUTE : AUDIO_MIXER_LAST;
2093 		strcpy(dip->label.name, AudioNfmsynth);
2094 		dip->un.v.num_channels = chan;
2095 		strcpy(dip->un.v.units.name, AudioNvolume);
2096 		return 0;
2097 	case SB_CD_VOL:
2098 		dip->type = AUDIO_MIXER_VALUE;
2099 		dip->mixer_class = class;
2100 		dip->prev = AUDIO_MIXER_LAST;
2101 		dip->next = is1745 ? SB_CD_IN_MUTE : AUDIO_MIXER_LAST;
2102 		strcpy(dip->label.name, AudioNcd);
2103 		dip->un.v.num_channels = chan;
2104 		strcpy(dip->un.v.units.name, AudioNvolume);
2105 		return 0;
2106 	case SB_VOICE_VOL:
2107 		dip->type = AUDIO_MIXER_VALUE;
2108 		dip->mixer_class = class;
2109 		dip->prev = AUDIO_MIXER_LAST;
2110 		dip->next = AUDIO_MIXER_LAST;
2111 		strcpy(dip->label.name, AudioNdac);
2112 		dip->un.v.num_channels = chan;
2113 		strcpy(dip->un.v.units.name, AudioNvolume);
2114 		return 0;
2115 	case SB_OUTPUT_CLASS:
2116 		dip->type = AUDIO_MIXER_CLASS;
2117 		dip->mixer_class = SB_OUTPUT_CLASS;
2118 		dip->next = dip->prev = AUDIO_MIXER_LAST;
2119 		strcpy(dip->label.name, AudioCoutputs);
2120 		return 0;
2121 	}
2122 
2123 	if (sc->sc_mixer_model == SBM_CT1335)
2124 		return ENXIO;
2125 
2126 	switch (dip->index) {
2127 	case SB_MIC_VOL:
2128 		dip->type = AUDIO_MIXER_VALUE;
2129 		dip->mixer_class = class;
2130 		dip->prev = AUDIO_MIXER_LAST;
2131 		dip->next = is1745 ? SB_MIC_IN_MUTE : AUDIO_MIXER_LAST;
2132 		strcpy(dip->label.name, AudioNmicrophone);
2133 		dip->un.v.num_channels = 1;
2134 		strcpy(dip->un.v.units.name, AudioNvolume);
2135 		return 0;
2136 
2137 	case SB_LINE_IN_VOL:
2138 		dip->type = AUDIO_MIXER_VALUE;
2139 		dip->mixer_class = class;
2140 		dip->prev = AUDIO_MIXER_LAST;
2141 		dip->next = is1745 ? SB_LINE_IN_MUTE : AUDIO_MIXER_LAST;
2142 		strcpy(dip->label.name, AudioNline);
2143 		dip->un.v.num_channels = 2;
2144 		strcpy(dip->un.v.units.name, AudioNvolume);
2145 		return 0;
2146 
2147 	case SB_RECORD_SOURCE:
2148 		dip->mixer_class = SB_RECORD_CLASS;
2149 		dip->prev = dip->next = AUDIO_MIXER_LAST;
2150 		strcpy(dip->label.name, AudioNsource);
2151 		if (ISSBM1745(sc)) {
2152 			dip->type = AUDIO_MIXER_SET;
2153 			dip->un.s.num_mem = 4;
2154 			strcpy(dip->un.s.member[0].label.name, AudioNmicrophone);
2155 			dip->un.s.member[0].mask = 1 << SB_MIC_VOL;
2156 			strcpy(dip->un.s.member[1].label.name, AudioNcd);
2157 			dip->un.s.member[1].mask = 1 << SB_CD_VOL;
2158 			strcpy(dip->un.s.member[2].label.name, AudioNline);
2159 			dip->un.s.member[2].mask = 1 << SB_LINE_IN_VOL;
2160 			strcpy(dip->un.s.member[3].label.name, AudioNfmsynth);
2161 			dip->un.s.member[3].mask = 1 << SB_MIDI_VOL;
2162 		} else {
2163 			dip->type = AUDIO_MIXER_ENUM;
2164 			dip->un.e.num_mem = 3;
2165 			strcpy(dip->un.e.member[0].label.name, AudioNmicrophone);
2166 			dip->un.e.member[0].ord = SB_MIC_VOL;
2167 			strcpy(dip->un.e.member[1].label.name, AudioNcd);
2168 			dip->un.e.member[1].ord = SB_CD_VOL;
2169 			strcpy(dip->un.e.member[2].label.name, AudioNline);
2170 			dip->un.e.member[2].ord = SB_LINE_IN_VOL;
2171 		}
2172 		return 0;
2173 
2174 	case SB_BASS:
2175 		dip->prev = dip->next = AUDIO_MIXER_LAST;
2176 		strcpy(dip->label.name, AudioNbass);
2177 		if (sc->sc_mixer_model == SBM_CT1745) {
2178 			dip->type = AUDIO_MIXER_VALUE;
2179 			dip->mixer_class = SB_EQUALIZATION_CLASS;
2180 			dip->un.v.num_channels = 2;
2181 			strcpy(dip->un.v.units.name, AudioNbass);
2182 		} else {
2183 			dip->type = AUDIO_MIXER_ENUM;
2184 			dip->mixer_class = SB_INPUT_CLASS;
2185 			dip->un.e.num_mem = 2;
2186 			strcpy(dip->un.e.member[0].label.name, AudioNoff);
2187 			dip->un.e.member[0].ord = 0;
2188 			strcpy(dip->un.e.member[1].label.name, AudioNon);
2189 			dip->un.e.member[1].ord = 1;
2190 		}
2191 		return 0;
2192 
2193 	case SB_TREBLE:
2194 		dip->prev = dip->next = AUDIO_MIXER_LAST;
2195 		strcpy(dip->label.name, AudioNtreble);
2196 		if (sc->sc_mixer_model == SBM_CT1745) {
2197 			dip->type = AUDIO_MIXER_VALUE;
2198 			dip->mixer_class = SB_EQUALIZATION_CLASS;
2199 			dip->un.v.num_channels = 2;
2200 			strcpy(dip->un.v.units.name, AudioNtreble);
2201 		} else {
2202 			dip->type = AUDIO_MIXER_ENUM;
2203 			dip->mixer_class = SB_INPUT_CLASS;
2204 			dip->un.e.num_mem = 2;
2205 			strcpy(dip->un.e.member[0].label.name, AudioNoff);
2206 			dip->un.e.member[0].ord = 0;
2207 			strcpy(dip->un.e.member[1].label.name, AudioNon);
2208 			dip->un.e.member[1].ord = 1;
2209 		}
2210 		return 0;
2211 
2212 	case SB_RECORD_CLASS:			/* record source class */
2213 		dip->type = AUDIO_MIXER_CLASS;
2214 		dip->mixer_class = SB_RECORD_CLASS;
2215 		dip->next = dip->prev = AUDIO_MIXER_LAST;
2216 		strcpy(dip->label.name, AudioCrecord);
2217 		return 0;
2218 
2219 	case SB_INPUT_CLASS:
2220 		dip->type = AUDIO_MIXER_CLASS;
2221 		dip->mixer_class = SB_INPUT_CLASS;
2222 		dip->next = dip->prev = AUDIO_MIXER_LAST;
2223 		strcpy(dip->label.name, AudioCinputs);
2224 		return 0;
2225 
2226 	}
2227 
2228 	if (sc->sc_mixer_model == SBM_CT1345)
2229 		return ENXIO;
2230 
2231 	switch(dip->index) {
2232 	case SB_PCSPEAKER:
2233 		dip->type = AUDIO_MIXER_VALUE;
2234 		dip->mixer_class = SB_INPUT_CLASS;
2235 		dip->prev = dip->next = AUDIO_MIXER_LAST;
2236 		strcpy(dip->label.name, "pc_speaker");
2237 		dip->un.v.num_channels = 1;
2238 		strcpy(dip->un.v.units.name, AudioNvolume);
2239 		return 0;
2240 
2241 	case SB_INPUT_GAIN:
2242 		dip->type = AUDIO_MIXER_VALUE;
2243 		dip->mixer_class = SB_INPUT_CLASS;
2244 		dip->prev = dip->next = AUDIO_MIXER_LAST;
2245 		strcpy(dip->label.name, AudioNinput);
2246 		dip->un.v.num_channels = 2;
2247 		strcpy(dip->un.v.units.name, AudioNvolume);
2248 		return 0;
2249 
2250 	case SB_OUTPUT_GAIN:
2251 		dip->type = AUDIO_MIXER_VALUE;
2252 		dip->mixer_class = SB_OUTPUT_CLASS;
2253 		dip->prev = dip->next = AUDIO_MIXER_LAST;
2254 		strcpy(dip->label.name, AudioNoutput);
2255 		dip->un.v.num_channels = 2;
2256 		strcpy(dip->un.v.units.name, AudioNvolume);
2257 		return 0;
2258 
2259 	case SB_AGC:
2260 		dip->type = AUDIO_MIXER_ENUM;
2261 		dip->mixer_class = SB_INPUT_CLASS;
2262 		dip->prev = dip->next = AUDIO_MIXER_LAST;
2263 		strcpy(dip->label.name, "agc");
2264 		dip->un.e.num_mem = 2;
2265 		strcpy(dip->un.e.member[0].label.name, AudioNoff);
2266 		dip->un.e.member[0].ord = 0;
2267 		strcpy(dip->un.e.member[1].label.name, AudioNon);
2268 		dip->un.e.member[1].ord = 1;
2269 		return 0;
2270 
2271 	case SB_EQUALIZATION_CLASS:
2272 		dip->type = AUDIO_MIXER_CLASS;
2273 		dip->mixer_class = SB_EQUALIZATION_CLASS;
2274 		dip->next = dip->prev = AUDIO_MIXER_LAST;
2275 		strcpy(dip->label.name, AudioCequalization);
2276 		return 0;
2277 
2278 	case SB_CD_IN_MUTE:
2279 		dip->prev = SB_CD_VOL;
2280 		dip->next = SB_CD_SWAP;
2281 		dip->mixer_class = SB_INPUT_CLASS;
2282 		goto mute;
2283 
2284 	case SB_MIC_IN_MUTE:
2285 		dip->prev = SB_MIC_VOL;
2286 		dip->next = SB_MIC_SWAP;
2287 		dip->mixer_class = SB_INPUT_CLASS;
2288 		goto mute;
2289 
2290 	case SB_LINE_IN_MUTE:
2291 		dip->prev = SB_LINE_IN_VOL;
2292 		dip->next = SB_LINE_SWAP;
2293 		dip->mixer_class = SB_INPUT_CLASS;
2294 		goto mute;
2295 
2296 	case SB_MIDI_IN_MUTE:
2297 		dip->prev = SB_MIDI_VOL;
2298 		dip->next = SB_MIDI_SWAP;
2299 		dip->mixer_class = SB_INPUT_CLASS;
2300 		goto mute;
2301 
2302 	case SB_CD_SWAP:
2303 		dip->prev = SB_CD_IN_MUTE;
2304 		dip->next = SB_CD_OUT_MUTE;
2305 		goto swap;
2306 
2307 	case SB_MIC_SWAP:
2308 		dip->prev = SB_MIC_IN_MUTE;
2309 		dip->next = SB_MIC_OUT_MUTE;
2310 		goto swap;
2311 
2312 	case SB_LINE_SWAP:
2313 		dip->prev = SB_LINE_IN_MUTE;
2314 		dip->next = SB_LINE_OUT_MUTE;
2315 		goto swap;
2316 
2317 	case SB_MIDI_SWAP:
2318 		dip->prev = SB_MIDI_IN_MUTE;
2319 		dip->next = AUDIO_MIXER_LAST;
2320 	swap:
2321 		dip->mixer_class = SB_INPUT_CLASS;
2322 		strcpy(dip->label.name, AudioNswap);
2323 		goto mute1;
2324 
2325 	case SB_CD_OUT_MUTE:
2326 		dip->prev = SB_CD_SWAP;
2327 		dip->next = AUDIO_MIXER_LAST;
2328 		dip->mixer_class = SB_OUTPUT_CLASS;
2329 		goto mute;
2330 
2331 	case SB_MIC_OUT_MUTE:
2332 		dip->prev = SB_MIC_SWAP;
2333 		dip->next = AUDIO_MIXER_LAST;
2334 		dip->mixer_class = SB_OUTPUT_CLASS;
2335 		goto mute;
2336 
2337 	case SB_LINE_OUT_MUTE:
2338 		dip->prev = SB_LINE_SWAP;
2339 		dip->next = AUDIO_MIXER_LAST;
2340 		dip->mixer_class = SB_OUTPUT_CLASS;
2341 	mute:
2342 		strcpy(dip->label.name, AudioNmute);
2343 	mute1:
2344 		dip->type = AUDIO_MIXER_ENUM;
2345 		dip->un.e.num_mem = 2;
2346 		strcpy(dip->un.e.member[0].label.name, AudioNoff);
2347 		dip->un.e.member[0].ord = 0;
2348 		strcpy(dip->un.e.member[1].label.name, AudioNon);
2349 		dip->un.e.member[1].ord = 1;
2350 		return 0;
2351 
2352 	}
2353 
2354 	return ENXIO;
2355 }
2356 
2357 void *
2358 sb_malloc(void *addr, int direction, size_t size)
2359 {
2360 	struct sbdsp_softc *sc;
2361 	int drq;
2362 
2363 	sc = addr;
2364 	if (sc->sc_drq8 != -1)
2365 		drq = sc->sc_drq8;
2366 	else
2367 		drq = sc->sc_drq16;
2368 	return isa_malloc(sc->sc_ic, drq, size, M_DEVBUF, M_WAITOK);
2369 }
2370 
2371 void
2372 sb_free(void *addr, void *ptr, size_t size)
2373 {
2374 
2375 	isa_free(ptr, M_DEVBUF);
2376 }
2377 
2378 size_t
2379 sb_round_buffersize(void *addr, int direction, size_t size)
2380 {
2381 	struct sbdsp_softc *sc;
2382 	bus_size_t maxsize;
2383 
2384 	sc = addr;
2385 	if (sc->sc_drq8 != -1)
2386 		maxsize = sc->sc_drq8_maxsize;
2387 	else
2388 		maxsize = sc->sc_drq16_maxsize;
2389 
2390 	if (size > maxsize)
2391 		size = maxsize;
2392 	return size;
2393 }
2394 
2395 paddr_t
2396 sb_mappage(void *addr, void *mem, off_t off, int prot)
2397 {
2398 
2399 	return isa_mappage(mem, off, prot);
2400 }
2401 
2402 int
2403 sbdsp_get_props(void *addr)
2404 {
2405 	struct sbdsp_softc *sc;
2406 
2407 	sc = addr;
2408 	return AUDIO_PROP_MMAP | AUDIO_PROP_INDEPENDENT |
2409 	       (sc->sc_fullduplex ? AUDIO_PROP_FULLDUPLEX : 0);
2410 }
2411 
2412 void
2413 sbdsp_get_locks(void *addr, kmutex_t **intr, kmutex_t **proc)
2414 {
2415 	struct sbdsp_softc *sc;
2416 
2417 	sc = addr;
2418 	*intr = &sc->sc_intr_lock;
2419 	*proc = &sc->sc_lock;
2420 }
2421 
2422 #if NMPU > 0
2423 /*
2424  * MIDI related routines.
2425  */
2426 
2427 int
2428 sbdsp_midi_open(void *addr, int flags, void (*iintr)(void *, int),
2429     void (*ointr)(void *), void *arg)
2430 {
2431 	struct sbdsp_softc *sc;
2432 
2433 	sc = addr;
2434 	DPRINTF(("sbdsp_midi_open: sc=%p\n", sc));
2435 
2436 	if (sc->sc_open != SB_CLOSED)
2437 		return EBUSY;
2438 	if (sbdsp_reset(sc) != 0)
2439 		return EIO;
2440 
2441 	sc->sc_open = SB_OPEN_MIDI;
2442 
2443 	if (sc->sc_model >= SB_20)
2444 		if (sbdsp_wdsp(sc, SB_MIDI_UART_INTR)) /* enter UART mode */
2445 			return EIO;
2446 
2447 	sc->sc_intr8 = sbdsp_midi_intr;
2448 	sc->sc_intrm = iintr;
2449 	sc->sc_argm = arg;
2450 
2451 	return 0;
2452 }
2453 
2454 void
2455 sbdsp_midi_close(void *addr)
2456 {
2457 	struct sbdsp_softc *sc;
2458 
2459 	sc = addr;
2460 	DPRINTF(("sbdsp_midi_close: sc=%p\n", sc));
2461 
2462 	if (sc->sc_model >= SB_20)
2463 		sbdsp_reset(sc); /* exit UART mode */
2464 
2465 	sc->sc_intrm = 0;
2466 	sc->sc_open = SB_CLOSED;
2467 }
2468 
2469 int
2470 sbdsp_midi_output(void *addr, int d)
2471 {
2472 	struct sbdsp_softc *sc;
2473 
2474 	sc = addr;
2475 	if (sc->sc_model < SB_20 && sbdsp_wdsp(sc, SB_MIDI_WRITE))
2476 		return EIO;
2477 	if (sbdsp_wdsp(sc, d))
2478 		return EIO;
2479 	return 0;
2480 }
2481 
2482 void
2483 sbdsp_midi_getinfo(void *addr, struct midi_info *mi)
2484 {
2485 	struct sbdsp_softc *sc;
2486 
2487 	sc = addr;
2488 	mi->name = sc->sc_model < SB_20 ? "SB MIDI cmd" : "SB MIDI UART";
2489 	mi->props = MIDI_PROP_CAN_INPUT;
2490 }
2491 
2492 int
2493 sbdsp_midi_intr(void *addr)
2494 {
2495 	struct sbdsp_softc *sc;
2496 
2497 	sc = addr;
2498 
2499 	KASSERT(mutex_owned(&sc->sc_intr_lock));
2500 
2501 	sc->sc_intrm(sc->sc_argm, sbdsp_rdsp(sc));
2502 	return (0);
2503 }
2504 #endif
2505