xref: /netbsd-src/sys/dev/isa/sbdsp.c (revision 6a493d6bc668897c91594964a732d38505b70cbb)
1 /*	$NetBSD: sbdsp.c,v 1.135 2011/11/23 23:07:32 jmcneill 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 1.135 2011/11/23 23:07:32 jmcneill 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, "couldn't establish power handler\n");
446 }
447 
448 static bool
449 sbdsp_resume(device_t dv, const pmf_qual_t *qual)
450 {
451 	struct sbdsp_softc *sc = device_private(dv);
452 
453 	/* Reset the mixer. */
454 	mutex_enter(&sc->sc_lock);
455 	mutex_spin_enter(&sc->sc_intr_lock);
456 	sbdsp_mix_write(sc, SBP_MIX_RESET, SBP_MIX_RESET);
457 	mutex_spin_exit(&sc->sc_intr_lock);
458 	mutex_exit(&sc->sc_lock);
459 
460 	return true;
461 }
462 
463 void
464 sbdsp_mix_write(struct sbdsp_softc *sc, int mixerport, int val)
465 {
466 	bus_space_tag_t iot;
467 	bus_space_handle_t ioh;
468 
469 	iot = sc->sc_iot;
470 	ioh = sc->sc_ioh;
471 	bus_space_write_1(iot, ioh, SBP_MIXER_ADDR, mixerport);
472 	delay(20);
473 	bus_space_write_1(iot, ioh, SBP_MIXER_DATA, val);
474 	delay(30);
475 }
476 
477 int
478 sbdsp_mix_read(struct sbdsp_softc *sc, int mixerport)
479 {
480 	bus_space_tag_t iot;
481 	bus_space_handle_t ioh;
482 	int val;
483 
484 	iot = sc->sc_iot;
485 	ioh = sc->sc_ioh;
486 	bus_space_write_1(iot, ioh, SBP_MIXER_ADDR, mixerport);
487 	delay(20);
488 	val = bus_space_read_1(iot, ioh, SBP_MIXER_DATA);
489 	delay(30);
490 	return val;
491 }
492 
493 /*
494  * Various routines to interface to higher level audio driver
495  */
496 
497 int
498 sbdsp_query_encoding(void *addr, struct audio_encoding *fp)
499 {
500 	struct sbdsp_softc *sc;
501 	int emul;
502 
503 	sc = addr;
504 	emul = ISSB16CLASS(sc) ? 0 : AUDIO_ENCODINGFLAG_EMULATED;
505 
506 	switch (fp->index) {
507 	case 0:
508 		strcpy(fp->name, AudioEulinear);
509 		fp->encoding = AUDIO_ENCODING_ULINEAR;
510 		fp->precision = 8;
511 		fp->flags = 0;
512 		return 0;
513 	case 1:
514 		strcpy(fp->name, AudioEmulaw);
515 		fp->encoding = AUDIO_ENCODING_ULAW;
516 		fp->precision = 8;
517 		fp->flags = AUDIO_ENCODINGFLAG_EMULATED;
518 		return 0;
519 	case 2:
520 		strcpy(fp->name, AudioEalaw);
521 		fp->encoding = AUDIO_ENCODING_ALAW;
522 		fp->precision = 8;
523 		fp->flags = AUDIO_ENCODINGFLAG_EMULATED;
524 		return 0;
525 	case 3:
526 		strcpy(fp->name, AudioEslinear);
527 		fp->encoding = AUDIO_ENCODING_SLINEAR;
528 		fp->precision = 8;
529 		fp->flags = emul;
530 		return 0;
531 	}
532 	if (!ISSB16CLASS(sc) && sc->sc_model != SB_JAZZ)
533 		return EINVAL;
534 
535 	switch(fp->index) {
536 	case 4:
537 		strcpy(fp->name, AudioEslinear_le);
538 		fp->encoding = AUDIO_ENCODING_SLINEAR_LE;
539 		fp->precision = 16;
540 		fp->flags = 0;
541 		return 0;
542 	case 5:
543 		strcpy(fp->name, AudioEulinear_le);
544 		fp->encoding = AUDIO_ENCODING_ULINEAR_LE;
545 		fp->precision = 16;
546 		fp->flags = emul;
547 		return 0;
548 	case 6:
549 		strcpy(fp->name, AudioEslinear_be);
550 		fp->encoding = AUDIO_ENCODING_SLINEAR_BE;
551 		fp->precision = 16;
552 		fp->flags = AUDIO_ENCODINGFLAG_EMULATED;
553 		return 0;
554 	case 7:
555 		strcpy(fp->name, AudioEulinear_be);
556 		fp->encoding = AUDIO_ENCODING_ULINEAR_BE;
557 		fp->precision = 16;
558 		fp->flags = AUDIO_ENCODINGFLAG_EMULATED;
559 		return 0;
560 	default:
561 		return EINVAL;
562 	}
563 	return 0;
564 }
565 
566 int
567 sbdsp_set_params(
568 	void *addr,
569 	int setmode, int usemode,
570 	audio_params_t *play, audio_params_t *rec,
571 	stream_filter_list_t *pfil, stream_filter_list_t *rfil)
572 {
573 	struct sbdsp_softc *sc;
574 	struct sbmode *m;
575 	u_int rate, tc, bmode;
576 	stream_filter_factory_t *swcode;
577 	int model;
578 	int chan;
579 	struct audio_params *p;
580 	audio_params_t hw;
581 	stream_filter_list_t *fil;
582 	int mode;
583 
584 	sc = addr;
585 
586 	if (sc->sc_open == SB_OPEN_MIDI)
587 		return EBUSY;
588 
589 	/* Later models work like SB16. */
590 	model = min(sc->sc_model, SB_16);
591 
592 	/*
593 	 * Prior to the SB16, we have only one clock, so make the sample
594 	 * rates match.
595 	 */
596 	if (!ISSB16CLASS(sc) &&
597 	    play->sample_rate != rec->sample_rate &&
598 	    usemode == (AUMODE_PLAY | AUMODE_RECORD)) {
599 		if (setmode == AUMODE_PLAY) {
600 			rec->sample_rate = play->sample_rate;
601 			setmode |= AUMODE_RECORD;
602 		} else if (setmode == AUMODE_RECORD) {
603 			play->sample_rate = rec->sample_rate;
604 			setmode |= AUMODE_PLAY;
605 		} else
606 			return EINVAL;
607 	}
608 
609 	/* Set first record info, then play info */
610 	for (mode = AUMODE_RECORD; mode != -1;
611 	     mode = mode == AUMODE_RECORD ? AUMODE_PLAY : -1) {
612 		if ((setmode & mode) == 0)
613 			continue;
614 
615 		p = mode == AUMODE_PLAY ? play : rec;
616 		/* Locate proper commands */
617 		for (m = mode == AUMODE_PLAY ? sbpmodes : sbrmodes;
618 		    m->model != -1; m++) {
619 			if (model == m->model &&
620 			    p->channels == m->channels &&
621 			    p->precision == m->precision &&
622 			    p->sample_rate >= m->lowrate &&
623 			    p->sample_rate <= m->highrate)
624 				break;
625 		}
626 		if (m->model == -1)
627 			return EINVAL;
628 		rate = p->sample_rate;
629 		swcode = NULL;
630 		fil = mode ==  AUMODE_PLAY ? pfil : rfil;
631 		hw = *p;
632 		tc = 1;
633 		bmode = -1;
634 		if (model == SB_16) {
635 			switch (p->encoding) {
636 			case AUDIO_ENCODING_SLINEAR_BE:
637 				if (p->precision == 16) {
638 					hw.encoding = AUDIO_ENCODING_SLINEAR_LE;
639 					swcode = swap_bytes;
640 				}
641 				/* fall into */
642 			case AUDIO_ENCODING_SLINEAR_LE:
643 				bmode = SB_BMODE_SIGNED;
644 				break;
645 
646 			case AUDIO_ENCODING_ULINEAR_BE:
647 				if (p->precision == 16) {
648 					hw.encoding = AUDIO_ENCODING_ULINEAR_LE;
649 					swcode = swap_bytes;
650 				}
651 				/* fall into */
652 			case AUDIO_ENCODING_ULINEAR_LE:
653 				bmode = SB_BMODE_UNSIGNED;
654 				break;
655 
656 			case AUDIO_ENCODING_ULAW:
657 				hw.encoding = AUDIO_ENCODING_ULINEAR_LE;
658 				if (mode == AUMODE_PLAY) {
659 					hw.precision = hw.validbits = 16;
660 					swcode = mulaw_to_linear16;
661 					m = &sbpmodes[PLAY16];
662 				} else
663 					swcode = linear8_to_mulaw;
664 				bmode = SB_BMODE_UNSIGNED;
665 				break;
666 
667 			case AUDIO_ENCODING_ALAW:
668 				hw.encoding = AUDIO_ENCODING_ULINEAR_LE;
669 				if (mode == AUMODE_PLAY) {
670 					hw.precision = hw.validbits = 16;
671 					swcode = alaw_to_linear16;
672 					m = &sbpmodes[PLAY16];
673 				} else
674 					swcode = linear8_to_alaw;
675 				bmode = SB_BMODE_UNSIGNED;
676 				break;
677 			default:
678 				return EINVAL;
679 			}
680 			if (p->channels == 2)
681 				bmode |= SB_BMODE_STEREO;
682 		} else if (m->model == SB_JAZZ && m->precision == 16) {
683 			switch (p->encoding) {
684 			case AUDIO_ENCODING_SLINEAR_LE:
685 				break;
686 			case AUDIO_ENCODING_ULINEAR_LE:
687 				hw.encoding = AUDIO_ENCODING_SLINEAR_LE;
688 				swcode = change_sign16;
689 				break;
690 			case AUDIO_ENCODING_SLINEAR_BE:
691 				hw.encoding = AUDIO_ENCODING_SLINEAR_LE;
692 				swcode = swap_bytes;
693 				break;
694 			case AUDIO_ENCODING_ULINEAR_BE:
695 				hw.encoding = AUDIO_ENCODING_SLINEAR_LE;
696 				swcode = swap_bytes_change_sign16;
697 				break;
698 			case AUDIO_ENCODING_ULAW:
699 				hw.encoding = AUDIO_ENCODING_ULINEAR_LE;
700 				swcode = mode == AUMODE_PLAY ?
701 					mulaw_to_linear8 : linear8_to_mulaw;
702 				break;
703 			case AUDIO_ENCODING_ALAW:
704 				hw.encoding = AUDIO_ENCODING_ULINEAR_LE;
705 				swcode = mode == AUMODE_PLAY ?
706 					alaw_to_linear8 : linear8_to_alaw;
707 				break;
708 			default:
709 				return EINVAL;
710 			}
711 			tc = SB_RATE_TO_TC(p->sample_rate * p->channels);
712 			p->sample_rate = SB_TC_TO_RATE(tc) / p->channels;
713 			hw.sample_rate = p->sample_rate;
714 		} else {
715 			switch (p->encoding) {
716 			case AUDIO_ENCODING_SLINEAR_BE:
717 			case AUDIO_ENCODING_SLINEAR_LE:
718 				hw.encoding = AUDIO_ENCODING_ULINEAR_LE;
719 				swcode = change_sign8;
720 				break;
721 			case AUDIO_ENCODING_ULINEAR_BE:
722 			case AUDIO_ENCODING_ULINEAR_LE:
723 				break;
724 			case AUDIO_ENCODING_ULAW:
725 				hw.encoding = AUDIO_ENCODING_ULINEAR_LE;
726 				swcode = mode == AUMODE_PLAY ?
727 					mulaw_to_linear8 : linear8_to_mulaw;
728 				break;
729 			case AUDIO_ENCODING_ALAW:
730 				hw.encoding = AUDIO_ENCODING_ULINEAR_LE;
731 				swcode = mode == AUMODE_PLAY ?
732 					alaw_to_linear8 : linear8_to_alaw;
733 				break;
734 			default:
735 				return EINVAL;
736 			}
737 			tc = SB_RATE_TO_TC(p->sample_rate * p->channels);
738 			p->sample_rate = SB_TC_TO_RATE(tc) / p->channels;
739 			hw.sample_rate = p->sample_rate;
740 		}
741 
742 		chan = m->precision == 16 ? sc->sc_drq16 : sc->sc_drq8;
743 		if (mode == AUMODE_PLAY) {
744 			sc->sc_o.rate = rate;
745 			sc->sc_o.tc = tc;
746 			sc->sc_o.modep = m;
747 			sc->sc_o.bmode = bmode;
748 			sc->sc_o.dmachan = chan;
749 		} else {
750 			sc->sc_i.rate = rate;
751 			sc->sc_i.tc = tc;
752 			sc->sc_i.modep = m;
753 			sc->sc_i.bmode = bmode;
754 			sc->sc_i.dmachan = chan;
755 		}
756 
757 		if (swcode != NULL)
758 			fil->append(fil, swcode, &hw);
759 		DPRINTF(("sbdsp_set_params: model=%d, mode=%d, rate=%u, "
760 			 "prec=%d, chan=%d, enc=%d -> tc=%02x, cmd=%02x, "
761 			 "bmode=%02x, cmdchan=%02x\n", sc->sc_model, mode,
762 			 p->sample_rate, p->precision, p->channels,
763 			 p->encoding, tc, m->cmd, bmode, m->cmdchan));
764 
765 	}
766 
767 	if (sc->sc_fullduplex &&
768 	    usemode == (AUMODE_PLAY | AUMODE_RECORD) &&
769 	    sc->sc_i.dmachan == sc->sc_o.dmachan) {
770 		DPRINTF(("sbdsp_set_params: fd=%d, usemode=%d, idma=%d, "
771 			 "odma=%d\n", sc->sc_fullduplex, usemode,
772 			 sc->sc_i.dmachan, sc->sc_o.dmachan));
773 		if (sc->sc_o.dmachan == sc->sc_drq8) {
774 			/* Use 16 bit DMA for playing by expanding the samples. */
775 			hw.precision = hw.validbits = 16;
776 			pfil->append(pfil, linear8_to_linear16, &hw);
777 			sc->sc_o.modep = &sbpmodes[PLAY16];
778 			sc->sc_o.dmachan = sc->sc_drq16;
779 		} else {
780 			return EINVAL;
781 		}
782 	}
783 	DPRINTF(("sbdsp_set_params ichan=%d, ochan=%d\n",
784 		 sc->sc_i.dmachan, sc->sc_o.dmachan));
785 
786 	return 0;
787 }
788 
789 void
790 sbdsp_set_ifilter(void *addr, int which)
791 {
792 	struct sbdsp_softc *sc;
793 	int mixval;
794 
795 	sc = addr;
796 
797 	mixval = sbdsp_mix_read(sc, SBP_INFILTER) & ~SBP_IFILTER_MASK;
798 	switch (which) {
799 	case 0:
800 		mixval |= SBP_FILTER_OFF;
801 		break;
802 	case SB_TREBLE:
803 		mixval |= SBP_FILTER_ON | SBP_IFILTER_HIGH;
804 		break;
805 	case SB_BASS:
806 		mixval |= SBP_FILTER_ON | SBP_IFILTER_LOW;
807 		break;
808 	default:
809 		return;
810 	}
811 	sc->in_filter = mixval & SBP_IFILTER_MASK;
812 	sbdsp_mix_write(sc, SBP_INFILTER, mixval);
813 }
814 
815 int
816 sbdsp_get_ifilter(void *addr)
817 {
818 	struct sbdsp_softc *sc;
819 
820 	sc = addr;
821 	sc->in_filter =
822 		sbdsp_mix_read(sc, SBP_INFILTER) & SBP_IFILTER_MASK;
823 	switch (sc->in_filter) {
824 	case SBP_FILTER_ON|SBP_IFILTER_HIGH:
825 		return SB_TREBLE;
826 	case SBP_FILTER_ON|SBP_IFILTER_LOW:
827 		return SB_BASS;
828 	default:
829 		return 0;
830 	}
831 }
832 
833 int
834 sbdsp_set_in_ports(struct sbdsp_softc *sc, int mask)
835 {
836 	int bitsl, bitsr;
837 	int sbport;
838 
839 	KASSERT(mutex_owned(&sc->sc_lock));
840 	KASSERT(mutex_owned(&sc->sc_intr_lock));
841 
842 	if (sc->sc_open == SB_OPEN_MIDI)
843 		return EBUSY;
844 
845 	DPRINTF(("sbdsp_set_in_ports: model=%d, mask=%x\n",
846 		 sc->sc_mixer_model, mask));
847 
848 	switch(sc->sc_mixer_model) {
849 	case SBM_NONE:
850 		return EINVAL;
851 	case SBM_CT1335:
852 		if (mask != (1 << SB_MIC_VOL))
853 			return EINVAL;
854 		break;
855 	case SBM_CT1345:
856 		switch (mask) {
857 		case 1 << SB_MIC_VOL:
858 			sbport = SBP_FROM_MIC;
859 			break;
860 		case 1 << SB_LINE_IN_VOL:
861 			sbport = SBP_FROM_LINE;
862 			break;
863 		case 1 << SB_CD_VOL:
864 			sbport = SBP_FROM_CD;
865 			break;
866 		default:
867 			return EINVAL;
868 		}
869 		sbdsp_mix_write(sc, SBP_RECORD_SOURCE, sbport | sc->in_filter);
870 		break;
871 	case SBM_CT1XX5:
872 	case SBM_CT1745:
873 		if (mask & ~((1<<SB_MIDI_VOL) | (1<<SB_LINE_IN_VOL) |
874 			     (1<<SB_CD_VOL) | (1<<SB_MIC_VOL)))
875 			return EINVAL;
876 		bitsr = 0;
877 		if (mask & (1<<SB_MIDI_VOL))    bitsr |= SBP_MIDI_SRC_R;
878 		if (mask & (1<<SB_LINE_IN_VOL)) bitsr |= SBP_LINE_SRC_R;
879 		if (mask & (1<<SB_CD_VOL))      bitsr |= SBP_CD_SRC_R;
880 		bitsl = SB_SRC_R_TO_L(bitsr);
881 		if (mask & (1<<SB_MIC_VOL)) {
882 			bitsl |= SBP_MIC_SRC;
883 			bitsr |= SBP_MIC_SRC;
884 		}
885 		sbdsp_mix_write(sc, SBP_RECORD_SOURCE_L, bitsl);
886 		sbdsp_mix_write(sc, SBP_RECORD_SOURCE_R, bitsr);
887 		break;
888 	}
889 	sc->in_mask = mask;
890 
891 	return 0;
892 }
893 
894 int
895 sbdsp_speaker_ctl(void *addr, int newstate)
896 {
897 	struct sbdsp_softc *sc;
898 
899 	sc = addr;
900 	if (sc->sc_open == SB_OPEN_MIDI)
901 		return EBUSY;
902 
903 	if ((newstate == SPKR_ON) &&
904 	    (sc->spkr_state == SPKR_OFF)) {
905 		sbdsp_spkron(sc);
906 		sc->spkr_state = SPKR_ON;
907 	}
908 	if ((newstate == SPKR_OFF) &&
909 	    (sc->spkr_state == SPKR_ON)) {
910 		sbdsp_spkroff(sc);
911 		sc->spkr_state = SPKR_OFF;
912 	}
913 	return 0;
914 }
915 
916 int
917 sbdsp_round_blocksize(void *addr, int blk, int mode,
918     const audio_params_t *param)
919 {
920 	return blk & -4;	/* round to biggest sample size */
921 }
922 
923 int
924 sbdsp_open(void *addr, int flags)
925 {
926 	struct sbdsp_softc *sc;
927 	int error, state;
928 
929 	sc = addr;
930 	DPRINTF(("sbdsp_open: sc=%p\n", sc));
931 
932 	if (sc->sc_open != SB_CLOSED)
933 		return EBUSY;
934 	sc->sc_open = SB_OPEN_AUDIO;
935 	state = 0;
936 
937 	if (sc->sc_drq8 != -1) {
938 		error = isa_drq_alloc(sc->sc_ic, sc->sc_drq8);
939 		if (error != 0)
940 			goto bad;
941 		state |= 1;
942 	}
943 
944 	if (sc->sc_drq16 != -1 && sc->sc_drq16 != sc->sc_drq8) {
945 		error = isa_drq_alloc(sc->sc_ic, sc->sc_drq16);
946 		if (error != 0)
947 			goto bad;
948 		state |= 2;
949 	}
950 
951 
952 	if (sbdsp_reset(sc) != 0) {
953 		error = EIO;
954 		goto bad;
955 	}
956 
957 	if (ISSBPRO(sc) &&
958 	    sbdsp_wdsp(sc, SB_DSP_RECORD_MONO) < 0) {
959 		DPRINTF(("sbdsp_open: can't set mono mode\n"));
960 		/* we'll readjust when it's time for DMA. */
961 	}
962 
963 	/*
964 	 * Leave most things as they were; users must change things if
965 	 * the previous process didn't leave it they way they wanted.
966 	 * Looked at another way, it's easy to set up a configuration
967 	 * in one program and leave it for another to inherit.
968 	 */
969 	DPRINTF(("sbdsp_open: opened\n"));
970 
971 	return 0;
972 
973 bad:
974 	if (state & 1)
975 		isa_drq_free(sc->sc_ic, sc->sc_drq8);
976 	if (state & 2)
977 		isa_drq_free(sc->sc_ic, sc->sc_drq16);
978 
979 	sc->sc_open = SB_CLOSED;
980 	return error;
981 }
982 
983 void
984 sbdsp_close(void *addr)
985 {
986 	struct sbdsp_softc *sc;
987 
988 	sc = addr;
989 	DPRINTF(("sbdsp_close: sc=%p\n", sc));
990 
991 	sbdsp_spkroff(sc);
992 	sc->spkr_state = SPKR_OFF;
993 
994 	sc->sc_intr8 = 0;
995 	sc->sc_intr16 = 0;
996 
997 	if (sc->sc_drq8 != -1)
998 		isa_drq_free(sc->sc_ic, sc->sc_drq8);
999 	if (sc->sc_drq16 != -1 && sc->sc_drq16 != sc->sc_drq8)
1000 		isa_drq_free(sc->sc_ic, sc->sc_drq16);
1001 
1002 	sc->sc_open = SB_CLOSED;
1003 	DPRINTF(("sbdsp_close: closed\n"));
1004 }
1005 
1006 /*
1007  * Lower-level routines
1008  */
1009 
1010 /*
1011  * Reset the card.
1012  * Return non-zero if the card isn't detected.
1013  */
1014 int
1015 sbdsp_reset(struct sbdsp_softc *sc)
1016 {
1017 	bus_space_tag_t iot;
1018 	bus_space_handle_t ioh;
1019 
1020 	iot = sc->sc_iot;
1021 	ioh = sc->sc_ioh;
1022 	sc->sc_intr8 = 0;
1023 	sc->sc_intr16 = 0;
1024 	sc->sc_intrm = 0;
1025 
1026 	/*
1027 	 * See SBK, section 11.3.
1028 	 * We pulse a reset signal into the card.
1029 	 * Gee, what a brilliant hardware design.
1030 	 */
1031 	bus_space_write_1(iot, ioh, SBP_DSP_RESET, 1);
1032 	delay(10);
1033 	bus_space_write_1(iot, ioh, SBP_DSP_RESET, 0);
1034 	delay(30);
1035 	if (sbdsp_rdsp(sc) != SB_MAGIC)
1036 		return -1;
1037 
1038 	return 0;
1039 }
1040 
1041 /*
1042  * Write a byte to the dsp.
1043  * We are at the mercy of the card as we use a
1044  * polling loop and wait until it can take the byte.
1045  */
1046 int
1047 sbdsp_wdsp(struct sbdsp_softc *sc, int v)
1048 {
1049 	bus_space_tag_t iot;
1050 	bus_space_handle_t ioh;
1051 	int i;
1052 	u_char x;
1053 
1054 	iot = sc->sc_iot;
1055 	ioh = sc->sc_ioh;
1056 	for (i = SBDSP_NPOLL; --i >= 0; ) {
1057 		x = bus_space_read_1(iot, ioh, SBP_DSP_WSTAT);
1058 		delay(10);
1059 		if ((x & SB_DSP_BUSY) == 0) {
1060 			bus_space_write_1(iot, ioh, SBP_DSP_WRITE, v);
1061 			delay(10);
1062 			return 0;
1063 		}
1064 	}
1065 	++sberr.wdsp;
1066 	return -1;
1067 }
1068 
1069 /*
1070  * Read a byte from the DSP, using polling.
1071  */
1072 int
1073 sbdsp_rdsp(struct sbdsp_softc *sc)
1074 {
1075 	bus_space_tag_t iot;
1076 	bus_space_handle_t ioh;
1077 	int i;
1078 	u_char x;
1079 
1080 	iot = sc->sc_iot;
1081 	ioh = sc->sc_ioh;
1082 	for (i = SBDSP_NPOLL; --i >= 0; ) {
1083 		x = bus_space_read_1(iot, ioh, SBP_DSP_RSTAT);
1084 		delay(10);
1085 		if (x & SB_DSP_READY) {
1086 			x = bus_space_read_1(iot, ioh, SBP_DSP_READ);
1087 			delay(10);
1088 			return x;
1089 		}
1090 	}
1091 	++sberr.rdsp;
1092 	return -1;
1093 }
1094 
1095 void
1096 sbdsp_pause(struct sbdsp_softc *sc)
1097 {
1098 
1099 	KASSERT(mutex_owned(&sc->sc_intr_lock));
1100 	mutex_spin_exit(&sc->sc_intr_lock);
1101 	(void)kpause("sbpause", false, hz/8, &sc->sc_lock);
1102 	mutex_spin_enter(&sc->sc_intr_lock);
1103 }
1104 
1105 /*
1106  * Turn on the speaker.  The SBK documention says this operation
1107  * can take up to 1/10 of a second.  Higher level layers should
1108  * probably let the task sleep for this amount of time after
1109  * calling here.  Otherwise, things might not work (because
1110  * sbdsp_wdsp() and sbdsp_rdsp() will probably timeout.)
1111  *
1112  * These engineers had their heads up their ass when
1113  * they designed this card.
1114  */
1115 void
1116 sbdsp_spkron(struct sbdsp_softc *sc)
1117 {
1118 
1119 	(void)sbdsp_wdsp(sc, SB_DSP_SPKR_ON);
1120 	sbdsp_pause(sc);
1121 }
1122 
1123 /*
1124  * Turn off the speaker; see comment above.
1125  */
1126 void
1127 sbdsp_spkroff(struct sbdsp_softc *sc)
1128 {
1129 
1130 	(void)sbdsp_wdsp(sc, SB_DSP_SPKR_OFF);
1131 	sbdsp_pause(sc);
1132 }
1133 
1134 /*
1135  * Read the version number out of the card.
1136  * Store version information in the softc.
1137  */
1138 void
1139 sbversion(struct sbdsp_softc *sc)
1140 {
1141 	int v;
1142 
1143 	sc->sc_model = SB_UNK;
1144 	sc->sc_version = 0;
1145 	if (sbdsp_wdsp(sc, SB_DSP_VERSION) < 0)
1146 		return;
1147 	v = sbdsp_rdsp(sc) << 8;
1148 	v |= sbdsp_rdsp(sc);
1149 	if (v < 0)
1150 		return;
1151 	sc->sc_version = v;
1152 	switch(SBVER_MAJOR(v)) {
1153 	case 1:
1154 		sc->sc_mixer_model = SBM_NONE;
1155 		sc->sc_model = SB_1;
1156 		break;
1157 	case 2:
1158 		/* Some SB2 have a mixer, some don't. */
1159 		sbdsp_mix_write(sc, SBP_1335_MASTER_VOL, 0x04);
1160 		sbdsp_mix_write(sc, SBP_1335_MIDI_VOL,   0x06);
1161 		/* Check if we can read back the mixer values. */
1162 		if ((sbdsp_mix_read(sc, SBP_1335_MASTER_VOL) & 0x0e) == 0x04 &&
1163 		    (sbdsp_mix_read(sc, SBP_1335_MIDI_VOL)   & 0x0e) == 0x06)
1164 			sc->sc_mixer_model = SBM_CT1335;
1165 		else
1166 			sc->sc_mixer_model = SBM_NONE;
1167 		if (SBVER_MINOR(v) == 0)
1168 			sc->sc_model = SB_20;
1169 		else
1170 			sc->sc_model = SB_2x;
1171 		break;
1172 	case 3:
1173 		sc->sc_mixer_model = SBM_CT1345;
1174 		sc->sc_model = SB_PRO;
1175 		break;
1176 	case 4:
1177 #if 0
1178 /* XXX This does not work */
1179 		/* Most SB16 have a tone controls, but some don't. */
1180 		sbdsp_mix_write(sc, SB16P_TREBLE_L, 0x80);
1181 		/* Check if we can read back the mixer value. */
1182 		if ((sbdsp_mix_read(sc, SB16P_TREBLE_L) & 0xf0) == 0x80)
1183 			sc->sc_mixer_model = SBM_CT1745;
1184 		else
1185 			sc->sc_mixer_model = SBM_CT1XX5;
1186 #else
1187 		sc->sc_mixer_model = SBM_CT1745;
1188 #endif
1189 #if 0
1190 /* XXX figure out a good way of determining the model */
1191 		/* XXX what about SB_32 */
1192 		if (SBVER_MINOR(v) == 16)
1193 			sc->sc_model = SB_64;
1194 		else
1195 #endif
1196 			sc->sc_model = SB_16;
1197 		break;
1198 	}
1199 }
1200 
1201 int
1202 sbdsp_set_timeconst(struct sbdsp_softc *sc, int tc)
1203 {
1204 
1205 	DPRINTF(("sbdsp_set_timeconst: sc=%p tc=%d\n", sc, tc));
1206 	if (sbdsp_wdsp(sc, SB_DSP_TIMECONST) < 0 ||
1207 	    sbdsp_wdsp(sc, tc) < 0)
1208 		return EIO;
1209 	return 0;
1210 }
1211 
1212 int
1213 sbdsp16_set_rate(struct sbdsp_softc *sc, int cmd, int rate)
1214 {
1215 
1216 	DPRINTF(("sbdsp16_set_rate: sc=%p cmd=0x%02x rate=%d\n", sc, cmd, rate));
1217 	if (sbdsp_wdsp(sc, cmd) < 0 ||
1218 	    sbdsp_wdsp(sc, rate >> 8) < 0 ||
1219 	    sbdsp_wdsp(sc, rate) < 0)
1220 		return EIO;
1221 	return 0;
1222 }
1223 
1224 int
1225 sbdsp_trigger_input(
1226 	void *addr,
1227 	void *start, void *end,
1228 	int blksize,
1229 	void (*intr)(void *),
1230 	void *arg,
1231 	const audio_params_t *param)
1232 {
1233 	struct sbdsp_softc *sc;
1234 	int stereo;
1235 	int width;
1236 	int filter;
1237 
1238 	sc = addr;
1239 	stereo = param->channels == 2;
1240 	width = param->precision;
1241 #ifdef DIAGNOSTIC
1242 	if (stereo && (blksize & 1)) {
1243 		DPRINTF(("stereo record odd bytes (%d)\n", blksize));
1244 		return EIO;
1245 	}
1246 	if (sc->sc_i.run != SB_NOTRUNNING)
1247 		printf("sbdsp_trigger_input: already running\n");
1248 #endif
1249 
1250 	sc->sc_intrr = intr;
1251 	sc->sc_argr = arg;
1252 
1253 	if (width == 8) {
1254 #ifdef DIAGNOSTIC
1255 		if (sc->sc_i.dmachan != sc->sc_drq8) {
1256 			printf("sbdsp_trigger_input: width=%d bad chan %d\n",
1257 			    width, sc->sc_i.dmachan);
1258 			return EIO;
1259 		}
1260 #endif
1261 		sc->sc_intr8 = sbdsp_block_input;
1262 	} else {
1263 #ifdef DIAGNOSTIC
1264 		if (sc->sc_i.dmachan != sc->sc_drq16) {
1265 			printf("sbdsp_trigger_input: width=%d bad chan %d\n",
1266 			    width, sc->sc_i.dmachan);
1267 			return EIO;
1268 		}
1269 #endif
1270 		sc->sc_intr16 = sbdsp_block_input;
1271 	}
1272 
1273 	if ((sc->sc_model == SB_JAZZ) ? (sc->sc_i.dmachan > 3) : (width == 16))
1274 		blksize >>= 1;
1275 	--blksize;
1276 	sc->sc_i.blksize = blksize;
1277 
1278 	if (ISSBPRO(sc)) {
1279 		if (sbdsp_wdsp(sc, sc->sc_i.modep->cmdchan) < 0)
1280 			return EIO;
1281 		filter = stereo ? SBP_FILTER_OFF : sc->in_filter;
1282 		sbdsp_mix_write(sc, SBP_INFILTER,
1283 		    (sbdsp_mix_read(sc, SBP_INFILTER) & ~SBP_IFILTER_MASK) |
1284 		    filter);
1285 	}
1286 
1287 	if (ISSB16CLASS(sc)) {
1288 		if (sbdsp16_set_rate(sc, SB_DSP16_INPUTRATE, sc->sc_i.rate)) {
1289 			DPRINTF(("sbdsp_trigger_input: rate=%d set failed\n",
1290 				 sc->sc_i.rate));
1291 			return EIO;
1292 		}
1293 	} else {
1294 		if (sbdsp_set_timeconst(sc, sc->sc_i.tc)) {
1295 			DPRINTF(("sbdsp_trigger_input: tc=%d set failed\n",
1296 				 sc->sc_i.rate));
1297 			return EIO;
1298 		}
1299 	}
1300 
1301 	DPRINTF(("sbdsp: DMA start loop input start=%p end=%p chan=%d\n",
1302 	    start, end, sc->sc_i.dmachan));
1303 	isa_dmastart(sc->sc_ic, sc->sc_i.dmachan, start,
1304 	    (char *)end - (char *)start, NULL,
1305 	    DMAMODE_READ | DMAMODE_LOOPDEMAND, BUS_DMA_NOWAIT);
1306 
1307 	return sbdsp_block_input(addr);
1308 }
1309 
1310 int
1311 sbdsp_block_input(void *addr)
1312 {
1313 	struct sbdsp_softc *sc;
1314 	int cc;
1315 
1316 	sc = addr;
1317 	cc = sc->sc_i.blksize;
1318 	DPRINTFN(2, ("sbdsp_block_input: sc=%p cc=%d\n", addr, cc));
1319 
1320 	if (sc->sc_i.run != SB_NOTRUNNING)
1321 		sc->sc_intrr(sc->sc_argr);
1322 
1323 	if (sc->sc_model == SB_1) {
1324 		/* Non-looping mode, start DMA */
1325 		if (sbdsp_wdsp(sc, sc->sc_i.modep->cmd) < 0 ||
1326 		    sbdsp_wdsp(sc, cc) < 0 ||
1327 		    sbdsp_wdsp(sc, cc >> 8) < 0) {
1328 			DPRINTF(("sbdsp_block_input: SB1 DMA start failed\n"));
1329 			return EIO;
1330 		}
1331 		sc->sc_i.run = SB_RUNNING;
1332 	} else if (sc->sc_i.run == SB_NOTRUNNING) {
1333 		/* Initialize looping PCM */
1334 		if (ISSB16CLASS(sc)) {
1335 			DPRINTFN(3, ("sbdsp16 input command cmd=0x%02x bmode=0x%02x cc=%d\n",
1336 			    sc->sc_i.modep->cmd, sc->sc_i.bmode, cc));
1337 			if (sbdsp_wdsp(sc, sc->sc_i.modep->cmd) < 0 ||
1338 			    sbdsp_wdsp(sc, sc->sc_i.bmode) < 0 ||
1339 			    sbdsp_wdsp(sc, cc) < 0 ||
1340 			    sbdsp_wdsp(sc, cc >> 8) < 0) {
1341 				DPRINTF(("sbdsp_block_input: SB16 DMA start failed\n"));
1342 				return EIO;
1343 			}
1344 		} else {
1345 			DPRINTF(("sbdsp_block_input: set blocksize=%d\n", cc));
1346 			if (sbdsp_wdsp(sc, SB_DSP_BLOCKSIZE) < 0 ||
1347 			    sbdsp_wdsp(sc, cc) < 0 ||
1348 			    sbdsp_wdsp(sc, cc >> 8) < 0) {
1349 				DPRINTF(("sbdsp_block_input: SB2 DMA blocksize failed\n"));
1350 				return EIO;
1351 			}
1352 			if (sbdsp_wdsp(sc, sc->sc_i.modep->cmd) < 0) {
1353 				DPRINTF(("sbdsp_block_input: SB2 DMA start failed\n"));
1354 				return EIO;
1355 			}
1356 		}
1357 		sc->sc_i.run = SB_LOOPING;
1358 	}
1359 
1360 	return 0;
1361 }
1362 
1363 int
1364 sbdsp_trigger_output(
1365 	void *addr,
1366 	void *start, void *end,
1367 	int blksize,
1368 	void (*intr)(void *),
1369 	void *arg,
1370 	const audio_params_t *param)
1371 {
1372 	struct sbdsp_softc *sc;
1373 	int stereo;
1374 	int width;
1375 	int cmd;
1376 
1377 	sc = addr;
1378 	stereo = param->channels == 2;
1379 	width = param->precision;
1380 #ifdef DIAGNOSTIC
1381 	if (stereo && (blksize & 1)) {
1382 		DPRINTF(("stereo playback odd bytes (%d)\n", blksize));
1383 		return EIO;
1384 	}
1385 	if (sc->sc_o.run != SB_NOTRUNNING)
1386 		printf("sbdsp_trigger_output: already running\n");
1387 #endif
1388 
1389 	sc->sc_intrp = intr;
1390 	sc->sc_argp = arg;
1391 
1392 	if (width == 8) {
1393 #ifdef DIAGNOSTIC
1394 		if (sc->sc_o.dmachan != sc->sc_drq8) {
1395 			printf("sbdsp_trigger_output: width=%d bad chan %d\n",
1396 			    width, sc->sc_o.dmachan);
1397 			return EIO;
1398 		}
1399 #endif
1400 		sc->sc_intr8 = sbdsp_block_output;
1401 	} else {
1402 #ifdef DIAGNOSTIC
1403 		if (sc->sc_o.dmachan != sc->sc_drq16) {
1404 			printf("sbdsp_trigger_output: width=%d bad chan %d\n",
1405 			    width, sc->sc_o.dmachan);
1406 			return EIO;
1407 		}
1408 #endif
1409 		sc->sc_intr16 = sbdsp_block_output;
1410 	}
1411 
1412 	if ((sc->sc_model == SB_JAZZ) ? (sc->sc_o.dmachan > 3) : (width == 16))
1413 		blksize >>= 1;
1414 	--blksize;
1415 	sc->sc_o.blksize = blksize;
1416 
1417 	if (ISSBPRO(sc)) {
1418 		/* make sure we re-set stereo mixer bit when we start output. */
1419 		sbdsp_mix_write(sc, SBP_STEREO,
1420 		    (sbdsp_mix_read(sc, SBP_STEREO) & ~SBP_PLAYMODE_MASK) |
1421 		    (stereo ?  SBP_PLAYMODE_STEREO : SBP_PLAYMODE_MONO));
1422 		cmd = sc->sc_o.modep->cmdchan;
1423 		if (cmd && sbdsp_wdsp(sc, cmd) < 0)
1424 			return EIO;
1425 	}
1426 
1427 	if (ISSB16CLASS(sc)) {
1428 		if (sbdsp16_set_rate(sc, SB_DSP16_OUTPUTRATE, sc->sc_o.rate)) {
1429 			DPRINTF(("sbdsp_trigger_output: rate=%d set failed\n",
1430 				 sc->sc_o.rate));
1431 			return EIO;
1432 		}
1433 	} else {
1434 		if (sbdsp_set_timeconst(sc, sc->sc_o.tc)) {
1435 			DPRINTF(("sbdsp_trigger_output: tc=%d set failed\n",
1436 				 sc->sc_o.rate));
1437 			return EIO;
1438 		}
1439 	}
1440 
1441 	DPRINTF(("sbdsp: DMA start loop output start=%p end=%p chan=%d\n",
1442 	    start, end, sc->sc_o.dmachan));
1443 	isa_dmastart(sc->sc_ic, sc->sc_o.dmachan, start,
1444 	    (char *)end - (char *)start, NULL,
1445 	    DMAMODE_WRITE | DMAMODE_LOOPDEMAND, BUS_DMA_NOWAIT);
1446 
1447 	return sbdsp_block_output(addr);
1448 }
1449 
1450 int
1451 sbdsp_block_output(void *addr)
1452 {
1453 	struct sbdsp_softc *sc;
1454 	int cc;
1455 
1456 	sc = addr;
1457 	cc = sc->sc_o.blksize;
1458 	DPRINTFN(2, ("sbdsp_block_output: sc=%p cc=%d\n", addr, cc));
1459 
1460 	if (sc->sc_o.run != SB_NOTRUNNING)
1461 		sc->sc_intrp(sc->sc_argp);
1462 
1463 	if (sc->sc_model == SB_1) {
1464 		/* Non-looping mode, initialized. Start DMA and PCM */
1465 		if (sbdsp_wdsp(sc, sc->sc_o.modep->cmd) < 0 ||
1466 		    sbdsp_wdsp(sc, cc) < 0 ||
1467 		    sbdsp_wdsp(sc, cc >> 8) < 0) {
1468 			DPRINTF(("sbdsp_block_output: SB1 DMA start failed\n"));
1469 			return EIO;
1470 		}
1471 		sc->sc_o.run = SB_RUNNING;
1472 	} else if (sc->sc_o.run == SB_NOTRUNNING) {
1473 		/* Initialize looping PCM */
1474 		if (ISSB16CLASS(sc)) {
1475 			DPRINTF(("sbdsp_block_output: SB16 cmd=0x%02x bmode=0x%02x cc=%d\n",
1476 			    sc->sc_o.modep->cmd,sc->sc_o.bmode, cc));
1477 			if (sbdsp_wdsp(sc, sc->sc_o.modep->cmd) < 0 ||
1478 			    sbdsp_wdsp(sc, sc->sc_o.bmode) < 0 ||
1479 			    sbdsp_wdsp(sc, cc) < 0 ||
1480 			    sbdsp_wdsp(sc, cc >> 8) < 0) {
1481 				DPRINTF(("sbdsp_block_output: SB16 DMA start failed\n"));
1482 				return EIO;
1483 			}
1484 		} else {
1485 			DPRINTF(("sbdsp_block_output: set blocksize=%d\n", cc));
1486 			if (sbdsp_wdsp(sc, SB_DSP_BLOCKSIZE) < 0 ||
1487 			    sbdsp_wdsp(sc, cc) < 0 ||
1488 			    sbdsp_wdsp(sc, cc >> 8) < 0) {
1489 				DPRINTF(("sbdsp_block_output: SB2 DMA blocksize failed\n"));
1490 				return EIO;
1491 			}
1492 			if (sbdsp_wdsp(sc, sc->sc_o.modep->cmd) < 0) {
1493 				DPRINTF(("sbdsp_block_output: SB2 DMA start failed\n"));
1494 				return EIO;
1495 			}
1496 		}
1497 		sc->sc_o.run = SB_LOOPING;
1498 	}
1499 
1500 	return 0;
1501 }
1502 
1503 int
1504 sbdsp_halt_output(void *addr)
1505 {
1506 	struct sbdsp_softc *sc;
1507 
1508 	sc = addr;
1509 	if (sc->sc_o.run != SB_NOTRUNNING) {
1510 		if (sbdsp_wdsp(sc, sc->sc_o.modep->halt) < 0)
1511 			printf("sbdsp_halt_output: failed to halt\n");
1512 		isa_dmaabort(sc->sc_ic, sc->sc_o.dmachan);
1513 		sc->sc_o.run = SB_NOTRUNNING;
1514 	}
1515 	return 0;
1516 }
1517 
1518 int
1519 sbdsp_halt_input(void *addr)
1520 {
1521 	struct sbdsp_softc *sc;
1522 
1523 	sc = addr;
1524 	if (sc->sc_i.run != SB_NOTRUNNING) {
1525 		if (sbdsp_wdsp(sc, sc->sc_i.modep->halt) < 0)
1526 			printf("sbdsp_halt_input: failed to halt\n");
1527 		isa_dmaabort(sc->sc_ic, sc->sc_i.dmachan);
1528 		sc->sc_i.run = SB_NOTRUNNING;
1529 	}
1530 	return 0;
1531 }
1532 
1533 /*
1534  * Only the DSP unit on the sound blaster generates interrupts.
1535  * There are three cases of interrupt: reception of a midi byte
1536  * (when mode is enabled), completion of DMA transmission, or
1537  * completion of a DMA reception.
1538  *
1539  * If there is interrupt sharing or a spurious interrupt occurs
1540  * there is no way to distinguish this on an SB2.  So if you have
1541  * an SB2 and experience problems, buy an SB16 (it's only $40).
1542  */
1543 int
1544 sbdsp_intr(void *arg)
1545 {
1546 	struct sbdsp_softc *sc = arg;
1547 #if NMPU > 0
1548 	struct mpu_softc *sc_mpu = device_private(sc->sc_mpudev);
1549 #endif
1550 	u_char irq;
1551 
1552 	DPRINTFN(2, ("sbdsp_intr: intr8=%p, intr16=%p\n",
1553 		   sc->sc_intr8, sc->sc_intr16));
1554 
1555 	mutex_spin_enter(&sc->sc_intr_lock);
1556 	if (ISSB16CLASS(sc)) {
1557 		irq = sbdsp_mix_read(sc, SBP_IRQ_STATUS);
1558 		if ((irq & (SBP_IRQ_DMA8 | SBP_IRQ_DMA16 | SBP_IRQ_MPU401)) == 0) {
1559 			mutex_spin_exit(&sc->sc_intr_lock);
1560 			DPRINTF(("sbdsp_intr: Spurious interrupt 0x%x\n", irq));
1561 			return 0;
1562 		}
1563 	} else {
1564 		/* XXXX CHECK FOR INTERRUPT */
1565 		irq = SBP_IRQ_DMA8;
1566 	}
1567 
1568 	sc->sc_interrupts++;
1569 	delay(10);		/* XXX why? */
1570 
1571 	/* clear interrupt */
1572 	if (irq & SBP_IRQ_DMA8) {
1573 		bus_space_read_1(sc->sc_iot, sc->sc_ioh, SBP_DSP_IRQACK8);
1574 		if (sc->sc_intr8)
1575 			sc->sc_intr8(arg);
1576 	}
1577 	if (irq & SBP_IRQ_DMA16) {
1578 		bus_space_read_1(sc->sc_iot, sc->sc_ioh, SBP_DSP_IRQACK16);
1579 		if (sc->sc_intr16)
1580 			sc->sc_intr16(arg);
1581 	}
1582 #if NMPU > 0
1583 	if ((irq & SBP_IRQ_MPU401) && sc_mpu) {
1584 		mpu_intr(sc_mpu);
1585 	}
1586 #endif
1587 
1588 	mutex_spin_exit(&sc->sc_intr_lock);
1589 	return 1;
1590 }
1591 
1592 /* Like val & mask, but make sure the result is correctly rounded. */
1593 #define MAXVAL 256
1594 static int
1595 sbdsp_adjust(int val, int mask)
1596 {
1597 
1598 	val += (MAXVAL - mask) >> 1;
1599 	if (val >= MAXVAL)
1600 		val = MAXVAL-1;
1601 	return val & mask;
1602 }
1603 
1604 void
1605 sbdsp_set_mixer_gain(struct sbdsp_softc *sc, int port)
1606 {
1607 	int src, gain;
1608 
1609 	KASSERT(mutex_owned(&sc->sc_lock));
1610 	KASSERT(mutex_owned(&sc->sc_intr_lock));
1611 
1612 	switch(sc->sc_mixer_model) {
1613 	case SBM_NONE:
1614 		return;
1615 	case SBM_CT1335:
1616 		gain = SB_1335_GAIN(sc->gain[port][SB_LEFT]);
1617 		switch(port) {
1618 		case SB_MASTER_VOL:
1619 			src = SBP_1335_MASTER_VOL;
1620 			break;
1621 		case SB_MIDI_VOL:
1622 			src = SBP_1335_MIDI_VOL;
1623 			break;
1624 		case SB_CD_VOL:
1625 			src = SBP_1335_CD_VOL;
1626 			break;
1627 		case SB_VOICE_VOL:
1628 			src = SBP_1335_VOICE_VOL;
1629 			gain = SB_1335_MASTER_GAIN(sc->gain[port][SB_LEFT]);
1630 			break;
1631 		default:
1632 			return;
1633 		}
1634 		sbdsp_mix_write(sc, src, gain);
1635 		break;
1636 	case SBM_CT1345:
1637 		gain = SB_STEREO_GAIN(sc->gain[port][SB_LEFT],
1638 				      sc->gain[port][SB_RIGHT]);
1639 		switch (port) {
1640 		case SB_MIC_VOL:
1641 			src = SBP_MIC_VOL;
1642 			gain = SB_MIC_GAIN(sc->gain[port][SB_LEFT]);
1643 			break;
1644 		case SB_MASTER_VOL:
1645 			src = SBP_MASTER_VOL;
1646 			break;
1647 		case SB_LINE_IN_VOL:
1648 			src = SBP_LINE_VOL;
1649 			break;
1650 		case SB_VOICE_VOL:
1651 			src = SBP_VOICE_VOL;
1652 			break;
1653 		case SB_MIDI_VOL:
1654 			src = SBP_MIDI_VOL;
1655 			break;
1656 		case SB_CD_VOL:
1657 			src = SBP_CD_VOL;
1658 			break;
1659 		default:
1660 			return;
1661 		}
1662 		sbdsp_mix_write(sc, src, gain);
1663 		break;
1664 	case SBM_CT1XX5:
1665 	case SBM_CT1745:
1666 		switch (port) {
1667 		case SB_MIC_VOL:
1668 			src = SB16P_MIC_L;
1669 			break;
1670 		case SB_MASTER_VOL:
1671 			src = SB16P_MASTER_L;
1672 			break;
1673 		case SB_LINE_IN_VOL:
1674 			src = SB16P_LINE_L;
1675 			break;
1676 		case SB_VOICE_VOL:
1677 			src = SB16P_VOICE_L;
1678 			break;
1679 		case SB_MIDI_VOL:
1680 			src = SB16P_MIDI_L;
1681 			break;
1682 		case SB_CD_VOL:
1683 			src = SB16P_CD_L;
1684 			break;
1685 		case SB_INPUT_GAIN:
1686 			src = SB16P_INPUT_GAIN_L;
1687 			break;
1688 		case SB_OUTPUT_GAIN:
1689 			src = SB16P_OUTPUT_GAIN_L;
1690 			break;
1691 		case SB_TREBLE:
1692 			src = SB16P_TREBLE_L;
1693 			break;
1694 		case SB_BASS:
1695 			src = SB16P_BASS_L;
1696 			break;
1697 		case SB_PCSPEAKER:
1698 			sbdsp_mix_write(sc, SB16P_PCSPEAKER, sc->gain[port][SB_LEFT]);
1699 			return;
1700 		default:
1701 			return;
1702 		}
1703 		sbdsp_mix_write(sc, src, sc->gain[port][SB_LEFT]);
1704 		sbdsp_mix_write(sc, SB16P_L_TO_R(src), sc->gain[port][SB_RIGHT]);
1705 		break;
1706 	}
1707 }
1708 
1709 int
1710 sbdsp_mixer_set_port(void *addr, mixer_ctrl_t *cp)
1711 {
1712 	struct sbdsp_softc *sc;
1713 	int lgain, rgain;
1714 	int mask, bits;
1715 	int lmask, rmask, lbits, rbits;
1716 	int mute, swap;
1717 	int error;
1718 
1719 	sc = addr;
1720 
1721 	KASSERT(mutex_owned(&sc->sc_lock));
1722 
1723 	if (sc->sc_open == SB_OPEN_MIDI)
1724 		return EBUSY;
1725 
1726 	DPRINTF(("sbdsp_mixer_set_port: port=%d num_channels=%d\n", cp->dev,
1727 	    cp->un.value.num_channels));
1728 
1729 	if (sc->sc_mixer_model == SBM_NONE)
1730 		return EINVAL;
1731 
1732 	mutex_spin_enter(&sc->sc_intr_lock);
1733 	error = 0;
1734 
1735 	switch (cp->dev) {
1736 	case SB_TREBLE:
1737 	case SB_BASS:
1738 		if (sc->sc_mixer_model == SBM_CT1345 ||
1739 		    sc->sc_mixer_model == SBM_CT1XX5) {
1740 			if (cp->type != AUDIO_MIXER_ENUM) {
1741 				mutex_spin_exit(&sc->sc_intr_lock);
1742 				return EINVAL;
1743 			}
1744 			switch (cp->dev) {
1745 			case SB_TREBLE:
1746 				sbdsp_set_ifilter(addr, cp->un.ord ? SB_TREBLE : 0);
1747 				mutex_spin_exit(&sc->sc_intr_lock);
1748 				return 0;
1749 			case SB_BASS:
1750 				sbdsp_set_ifilter(addr, cp->un.ord ? SB_BASS : 0);
1751 				mutex_spin_exit(&sc->sc_intr_lock);
1752 				return 0;
1753 			}
1754 		}
1755 	case SB_PCSPEAKER:
1756 	case SB_INPUT_GAIN:
1757 	case SB_OUTPUT_GAIN:
1758 		if (!ISSBM1745(sc)) {
1759 			error = EINVAL;
1760 			break;
1761 		}
1762 	case SB_MIC_VOL:
1763 	case SB_LINE_IN_VOL:
1764 		if (sc->sc_mixer_model == SBM_CT1335) {
1765 			error = EINVAL;
1766 			break;
1767 		}
1768 	case SB_VOICE_VOL:
1769 	case SB_MIDI_VOL:
1770 	case SB_CD_VOL:
1771 	case SB_MASTER_VOL:
1772 		if (cp->type != AUDIO_MIXER_VALUE) {
1773 			error = EINVAL;
1774 			break;
1775 		}
1776 
1777 		/*
1778 		 * All the mixer ports are stereo except for the microphone.
1779 		 * If we get a single-channel gain value passed in, then we
1780 		 * duplicate it to both left and right channels.
1781 		 */
1782 
1783 		switch (cp->dev) {
1784 		case SB_MIC_VOL:
1785 			if (cp->un.value.num_channels != 1) {
1786 				error = EINVAL;
1787 				break;
1788 			}
1789 
1790 			lgain = rgain = SB_ADJUST_MIC_GAIN(sc,
1791 			    cp->un.value.level[AUDIO_MIXER_LEVEL_MONO]);
1792 			break;
1793 		case SB_PCSPEAKER:
1794 			if (cp->un.value.num_channels != 1) {
1795 				error = EINVAL;
1796 				break;
1797 			}
1798 			/* fall into */
1799 		case SB_INPUT_GAIN:
1800 		case SB_OUTPUT_GAIN:
1801 			lgain = rgain = SB_ADJUST_2_GAIN(sc,
1802 			    cp->un.value.level[AUDIO_MIXER_LEVEL_MONO]);
1803 			break;
1804 		default:
1805 			switch (cp->un.value.num_channels) {
1806 			case 1:
1807 				lgain = rgain = SB_ADJUST_GAIN(sc,
1808 				    cp->un.value.level[AUDIO_MIXER_LEVEL_MONO]);
1809 				break;
1810 			case 2:
1811 				if (sc->sc_mixer_model == SBM_CT1335) {
1812 					error = EINVAL;
1813 					break;
1814 				}
1815 				lgain = SB_ADJUST_GAIN(sc,
1816 				    cp->un.value.level[AUDIO_MIXER_LEVEL_LEFT]);
1817 				rgain = SB_ADJUST_GAIN(sc,
1818 				    cp->un.value.level[AUDIO_MIXER_LEVEL_RIGHT]);
1819 				break;
1820 			default:
1821 				error = EINVAL;
1822 				break;
1823 			}
1824 			break;
1825 		}
1826 		if (error == 0) {
1827 			sc->gain[cp->dev][SB_LEFT]  = lgain;
1828 			sc->gain[cp->dev][SB_RIGHT] = rgain;
1829 			sbdsp_set_mixer_gain(sc, cp->dev);
1830 		}
1831 		break;
1832 
1833 	case SB_RECORD_SOURCE:
1834 		if (ISSBM1745(sc)) {
1835 			if (cp->type != AUDIO_MIXER_SET)
1836 				error = EINVAL;
1837 			else
1838 				error = sbdsp_set_in_ports(sc, cp->un.mask);
1839 		} else {
1840 			if (cp->type != AUDIO_MIXER_ENUM)
1841 				error = EINVAL;
1842 			else {
1843 				sc->in_port = cp->un.ord;
1844 				error = sbdsp_set_in_ports(sc, 1 << cp->un.ord);
1845 			}
1846 		}
1847 		break;
1848 
1849 	case SB_AGC:
1850 		if (!ISSBM1745(sc) || cp->type != AUDIO_MIXER_ENUM)
1851 			error = EINVAL;
1852 		else
1853 			sbdsp_mix_write(sc, SB16P_AGC, cp->un.ord & 1);
1854 		break;
1855 
1856 	case SB_CD_OUT_MUTE:
1857 		mask = SB16P_SW_CD;
1858 		goto omute;
1859 	case SB_MIC_OUT_MUTE:
1860 		mask = SB16P_SW_MIC;
1861 		goto omute;
1862 	case SB_LINE_OUT_MUTE:
1863 		mask = SB16P_SW_LINE;
1864 	omute:
1865 		if (cp->type != AUDIO_MIXER_ENUM) {
1866 			error = EINVAL;
1867 			break;
1868 		}
1869 		bits = sbdsp_mix_read(sc, SB16P_OSWITCH);
1870 		sc->gain[cp->dev][SB_LR] = cp->un.ord != 0;
1871 		if (cp->un.ord)
1872 			bits = bits & ~mask;
1873 		else
1874 			bits = bits | mask;
1875 		sbdsp_mix_write(sc, SB16P_OSWITCH, bits);
1876 		break;
1877 
1878 	case SB_MIC_IN_MUTE:
1879 	case SB_MIC_SWAP:
1880 		lmask = rmask = SB16P_SW_MIC;
1881 		goto imute;
1882 	case SB_CD_IN_MUTE:
1883 	case SB_CD_SWAP:
1884 		lmask = SB16P_SW_CD_L;
1885 		rmask = SB16P_SW_CD_R;
1886 		goto imute;
1887 	case SB_LINE_IN_MUTE:
1888 	case SB_LINE_SWAP:
1889 		lmask = SB16P_SW_LINE_L;
1890 		rmask = SB16P_SW_LINE_R;
1891 		goto imute;
1892 	case SB_MIDI_IN_MUTE:
1893 	case SB_MIDI_SWAP:
1894 		lmask = SB16P_SW_MIDI_L;
1895 		rmask = SB16P_SW_MIDI_R;
1896 	imute:
1897 		if (cp->type != AUDIO_MIXER_ENUM) {
1898 			error = EINVAL;
1899 			break;
1900 		}
1901 		mask = lmask | rmask;
1902 		lbits = sbdsp_mix_read(sc, SB16P_ISWITCH_L) & ~mask;
1903 		rbits = sbdsp_mix_read(sc, SB16P_ISWITCH_R) & ~mask;
1904 		sc->gain[cp->dev][SB_LR] = cp->un.ord != 0;
1905 		if (SB_IS_IN_MUTE(cp->dev)) {
1906 			mute = cp->dev;
1907 			swap = mute - SB_CD_IN_MUTE + SB_CD_SWAP;
1908 		} else {
1909 			swap = cp->dev;
1910 			mute = swap + SB_CD_IN_MUTE - SB_CD_SWAP;
1911 		}
1912 		if (sc->gain[swap][SB_LR]) {
1913 			mask = lmask;
1914 			lmask = rmask;
1915 			rmask = mask;
1916 		}
1917 		if (!sc->gain[mute][SB_LR]) {
1918 			lbits = lbits | lmask;
1919 			rbits = rbits | rmask;
1920 		}
1921 		sbdsp_mix_write(sc, SB16P_ISWITCH_L, lbits);
1922 		sbdsp_mix_write(sc, SB16P_ISWITCH_L, rbits);
1923 		break;
1924 
1925 	default:
1926 		error = EINVAL;
1927 		break;
1928 	}
1929 
1930 	mutex_spin_exit(&sc->sc_intr_lock);
1931 	return error;
1932 }
1933 
1934 int
1935 sbdsp_mixer_get_port(void *addr, mixer_ctrl_t *cp)
1936 {
1937 	struct sbdsp_softc *sc;
1938 
1939 	sc = addr;
1940 
1941 	KASSERT(mutex_owned(&sc->sc_lock));
1942 
1943 	if (sc->sc_open == SB_OPEN_MIDI)
1944 		return EBUSY;
1945 
1946 	DPRINTF(("sbdsp_mixer_get_port: port=%d\n", cp->dev));
1947 
1948 	if (sc->sc_mixer_model == SBM_NONE)
1949 		return EINVAL;
1950 
1951 	mutex_spin_enter(&sc->sc_intr_lock);
1952 
1953 	switch (cp->dev) {
1954 	case SB_TREBLE:
1955 	case SB_BASS:
1956 		if (sc->sc_mixer_model == SBM_CT1345 ||
1957 		    sc->sc_mixer_model == SBM_CT1XX5) {
1958 			switch (cp->dev) {
1959 			case SB_TREBLE:
1960 				cp->un.ord = sbdsp_get_ifilter(addr) == SB_TREBLE;
1961 				mutex_spin_exit(&sc->sc_intr_lock);
1962 				return 0;
1963 			case SB_BASS:
1964 				cp->un.ord = sbdsp_get_ifilter(addr) == SB_BASS;
1965 				mutex_spin_exit(&sc->sc_intr_lock);
1966 				return 0;
1967 			}
1968 		}
1969 	case SB_PCSPEAKER:
1970 	case SB_INPUT_GAIN:
1971 	case SB_OUTPUT_GAIN:
1972 		if (!ISSBM1745(sc)) {
1973 			mutex_spin_exit(&sc->sc_intr_lock);
1974 			return EINVAL;
1975 		}
1976 	case SB_MIC_VOL:
1977 	case SB_LINE_IN_VOL:
1978 		if (sc->sc_mixer_model == SBM_CT1335) {
1979 			mutex_spin_exit(&sc->sc_intr_lock);
1980 			return EINVAL;
1981 		}
1982 	case SB_VOICE_VOL:
1983 	case SB_MIDI_VOL:
1984 	case SB_CD_VOL:
1985 	case SB_MASTER_VOL:
1986 		switch (cp->dev) {
1987 		case SB_MIC_VOL:
1988 		case SB_PCSPEAKER:
1989 			if (cp->un.value.num_channels != 1) {
1990 				mutex_spin_exit(&sc->sc_intr_lock);
1991 				return EINVAL;
1992 			}
1993 			/* fall into */
1994 		default:
1995 			switch (cp->un.value.num_channels) {
1996 			case 1:
1997 				cp->un.value.level[AUDIO_MIXER_LEVEL_MONO] =
1998 				    sc->gain[cp->dev][SB_LEFT];
1999 				break;
2000 			case 2:
2001 				cp->un.value.level[AUDIO_MIXER_LEVEL_LEFT] =
2002 				    sc->gain[cp->dev][SB_LEFT];
2003 				cp->un.value.level[AUDIO_MIXER_LEVEL_RIGHT] =
2004 				    sc->gain[cp->dev][SB_RIGHT];
2005 				break;
2006 			default:
2007 				mutex_spin_exit(&sc->sc_intr_lock);
2008 				return EINVAL;
2009 			}
2010 			break;
2011 		}
2012 		break;
2013 
2014 	case SB_RECORD_SOURCE:
2015 		if (ISSBM1745(sc))
2016 			cp->un.mask = sc->in_mask;
2017 		else
2018 			cp->un.ord = sc->in_port;
2019 		break;
2020 
2021 	case SB_AGC:
2022 		if (!ISSBM1745(sc)) {
2023 			mutex_spin_exit(&sc->sc_intr_lock);
2024 			return EINVAL;
2025 		}
2026 		cp->un.ord = sbdsp_mix_read(sc, SB16P_AGC);
2027 		break;
2028 
2029 	case SB_CD_IN_MUTE:
2030 	case SB_MIC_IN_MUTE:
2031 	case SB_LINE_IN_MUTE:
2032 	case SB_MIDI_IN_MUTE:
2033 	case SB_CD_SWAP:
2034 	case SB_MIC_SWAP:
2035 	case SB_LINE_SWAP:
2036 	case SB_MIDI_SWAP:
2037 	case SB_CD_OUT_MUTE:
2038 	case SB_MIC_OUT_MUTE:
2039 	case SB_LINE_OUT_MUTE:
2040 		cp->un.ord = sc->gain[cp->dev][SB_LR];
2041 		break;
2042 
2043 	default:
2044 		mutex_spin_exit(&sc->sc_intr_lock);
2045 		return EINVAL;
2046 	}
2047 
2048 	mutex_spin_exit(&sc->sc_intr_lock);
2049 
2050 	return 0;
2051 }
2052 
2053 int
2054 sbdsp_mixer_query_devinfo(void *addr, mixer_devinfo_t *dip)
2055 {
2056 	struct sbdsp_softc *sc = addr;
2057 	int chan, class, is1745;
2058 
2059 	sc = addr;
2060 	DPRINTF(("sbdsp_mixer_query_devinfo: model=%d index=%d\n",
2061 		 sc->sc_mixer_model, dip->index));
2062 
2063 	KASSERT(mutex_owned(&sc->sc_lock));
2064 
2065 	if (sc->sc_mixer_model == SBM_NONE)
2066 		return ENXIO;
2067 
2068 	chan = sc->sc_mixer_model == SBM_CT1335 ? 1 : 2;
2069 	is1745 = ISSBM1745(sc);
2070 	class = is1745 ? SB_INPUT_CLASS : SB_OUTPUT_CLASS;
2071 
2072 	switch (dip->index) {
2073 	case SB_MASTER_VOL:
2074 		dip->type = AUDIO_MIXER_VALUE;
2075 		dip->mixer_class = SB_OUTPUT_CLASS;
2076 		dip->prev = dip->next = AUDIO_MIXER_LAST;
2077 		strcpy(dip->label.name, AudioNmaster);
2078 		dip->un.v.num_channels = chan;
2079 		strcpy(dip->un.v.units.name, AudioNvolume);
2080 		return 0;
2081 	case SB_MIDI_VOL:
2082 		dip->type = AUDIO_MIXER_VALUE;
2083 		dip->mixer_class = class;
2084 		dip->prev = AUDIO_MIXER_LAST;
2085 		dip->next = is1745 ? SB_MIDI_IN_MUTE : AUDIO_MIXER_LAST;
2086 		strcpy(dip->label.name, AudioNfmsynth);
2087 		dip->un.v.num_channels = chan;
2088 		strcpy(dip->un.v.units.name, AudioNvolume);
2089 		return 0;
2090 	case SB_CD_VOL:
2091 		dip->type = AUDIO_MIXER_VALUE;
2092 		dip->mixer_class = class;
2093 		dip->prev = AUDIO_MIXER_LAST;
2094 		dip->next = is1745 ? SB_CD_IN_MUTE : AUDIO_MIXER_LAST;
2095 		strcpy(dip->label.name, AudioNcd);
2096 		dip->un.v.num_channels = chan;
2097 		strcpy(dip->un.v.units.name, AudioNvolume);
2098 		return 0;
2099 	case SB_VOICE_VOL:
2100 		dip->type = AUDIO_MIXER_VALUE;
2101 		dip->mixer_class = class;
2102 		dip->prev = AUDIO_MIXER_LAST;
2103 		dip->next = AUDIO_MIXER_LAST;
2104 		strcpy(dip->label.name, AudioNdac);
2105 		dip->un.v.num_channels = chan;
2106 		strcpy(dip->un.v.units.name, AudioNvolume);
2107 		return 0;
2108 	case SB_OUTPUT_CLASS:
2109 		dip->type = AUDIO_MIXER_CLASS;
2110 		dip->mixer_class = SB_OUTPUT_CLASS;
2111 		dip->next = dip->prev = AUDIO_MIXER_LAST;
2112 		strcpy(dip->label.name, AudioCoutputs);
2113 		return 0;
2114 	}
2115 
2116 	if (sc->sc_mixer_model == SBM_CT1335)
2117 		return ENXIO;
2118 
2119 	switch (dip->index) {
2120 	case SB_MIC_VOL:
2121 		dip->type = AUDIO_MIXER_VALUE;
2122 		dip->mixer_class = class;
2123 		dip->prev = AUDIO_MIXER_LAST;
2124 		dip->next = is1745 ? SB_MIC_IN_MUTE : AUDIO_MIXER_LAST;
2125 		strcpy(dip->label.name, AudioNmicrophone);
2126 		dip->un.v.num_channels = 1;
2127 		strcpy(dip->un.v.units.name, AudioNvolume);
2128 		return 0;
2129 
2130 	case SB_LINE_IN_VOL:
2131 		dip->type = AUDIO_MIXER_VALUE;
2132 		dip->mixer_class = class;
2133 		dip->prev = AUDIO_MIXER_LAST;
2134 		dip->next = is1745 ? SB_LINE_IN_MUTE : AUDIO_MIXER_LAST;
2135 		strcpy(dip->label.name, AudioNline);
2136 		dip->un.v.num_channels = 2;
2137 		strcpy(dip->un.v.units.name, AudioNvolume);
2138 		return 0;
2139 
2140 	case SB_RECORD_SOURCE:
2141 		dip->mixer_class = SB_RECORD_CLASS;
2142 		dip->prev = dip->next = AUDIO_MIXER_LAST;
2143 		strcpy(dip->label.name, AudioNsource);
2144 		if (ISSBM1745(sc)) {
2145 			dip->type = AUDIO_MIXER_SET;
2146 			dip->un.s.num_mem = 4;
2147 			strcpy(dip->un.s.member[0].label.name, AudioNmicrophone);
2148 			dip->un.s.member[0].mask = 1 << SB_MIC_VOL;
2149 			strcpy(dip->un.s.member[1].label.name, AudioNcd);
2150 			dip->un.s.member[1].mask = 1 << SB_CD_VOL;
2151 			strcpy(dip->un.s.member[2].label.name, AudioNline);
2152 			dip->un.s.member[2].mask = 1 << SB_LINE_IN_VOL;
2153 			strcpy(dip->un.s.member[3].label.name, AudioNfmsynth);
2154 			dip->un.s.member[3].mask = 1 << SB_MIDI_VOL;
2155 		} else {
2156 			dip->type = AUDIO_MIXER_ENUM;
2157 			dip->un.e.num_mem = 3;
2158 			strcpy(dip->un.e.member[0].label.name, AudioNmicrophone);
2159 			dip->un.e.member[0].ord = SB_MIC_VOL;
2160 			strcpy(dip->un.e.member[1].label.name, AudioNcd);
2161 			dip->un.e.member[1].ord = SB_CD_VOL;
2162 			strcpy(dip->un.e.member[2].label.name, AudioNline);
2163 			dip->un.e.member[2].ord = SB_LINE_IN_VOL;
2164 		}
2165 		return 0;
2166 
2167 	case SB_BASS:
2168 		dip->prev = dip->next = AUDIO_MIXER_LAST;
2169 		strcpy(dip->label.name, AudioNbass);
2170 		if (sc->sc_mixer_model == SBM_CT1745) {
2171 			dip->type = AUDIO_MIXER_VALUE;
2172 			dip->mixer_class = SB_EQUALIZATION_CLASS;
2173 			dip->un.v.num_channels = 2;
2174 			strcpy(dip->un.v.units.name, AudioNbass);
2175 		} else {
2176 			dip->type = AUDIO_MIXER_ENUM;
2177 			dip->mixer_class = SB_INPUT_CLASS;
2178 			dip->un.e.num_mem = 2;
2179 			strcpy(dip->un.e.member[0].label.name, AudioNoff);
2180 			dip->un.e.member[0].ord = 0;
2181 			strcpy(dip->un.e.member[1].label.name, AudioNon);
2182 			dip->un.e.member[1].ord = 1;
2183 		}
2184 		return 0;
2185 
2186 	case SB_TREBLE:
2187 		dip->prev = dip->next = AUDIO_MIXER_LAST;
2188 		strcpy(dip->label.name, AudioNtreble);
2189 		if (sc->sc_mixer_model == SBM_CT1745) {
2190 			dip->type = AUDIO_MIXER_VALUE;
2191 			dip->mixer_class = SB_EQUALIZATION_CLASS;
2192 			dip->un.v.num_channels = 2;
2193 			strcpy(dip->un.v.units.name, AudioNtreble);
2194 		} else {
2195 			dip->type = AUDIO_MIXER_ENUM;
2196 			dip->mixer_class = SB_INPUT_CLASS;
2197 			dip->un.e.num_mem = 2;
2198 			strcpy(dip->un.e.member[0].label.name, AudioNoff);
2199 			dip->un.e.member[0].ord = 0;
2200 			strcpy(dip->un.e.member[1].label.name, AudioNon);
2201 			dip->un.e.member[1].ord = 1;
2202 		}
2203 		return 0;
2204 
2205 	case SB_RECORD_CLASS:			/* record source class */
2206 		dip->type = AUDIO_MIXER_CLASS;
2207 		dip->mixer_class = SB_RECORD_CLASS;
2208 		dip->next = dip->prev = AUDIO_MIXER_LAST;
2209 		strcpy(dip->label.name, AudioCrecord);
2210 		return 0;
2211 
2212 	case SB_INPUT_CLASS:
2213 		dip->type = AUDIO_MIXER_CLASS;
2214 		dip->mixer_class = SB_INPUT_CLASS;
2215 		dip->next = dip->prev = AUDIO_MIXER_LAST;
2216 		strcpy(dip->label.name, AudioCinputs);
2217 		return 0;
2218 
2219 	}
2220 
2221 	if (sc->sc_mixer_model == SBM_CT1345)
2222 		return ENXIO;
2223 
2224 	switch(dip->index) {
2225 	case SB_PCSPEAKER:
2226 		dip->type = AUDIO_MIXER_VALUE;
2227 		dip->mixer_class = SB_INPUT_CLASS;
2228 		dip->prev = dip->next = AUDIO_MIXER_LAST;
2229 		strcpy(dip->label.name, "pc_speaker");
2230 		dip->un.v.num_channels = 1;
2231 		strcpy(dip->un.v.units.name, AudioNvolume);
2232 		return 0;
2233 
2234 	case SB_INPUT_GAIN:
2235 		dip->type = AUDIO_MIXER_VALUE;
2236 		dip->mixer_class = SB_INPUT_CLASS;
2237 		dip->prev = dip->next = AUDIO_MIXER_LAST;
2238 		strcpy(dip->label.name, AudioNinput);
2239 		dip->un.v.num_channels = 2;
2240 		strcpy(dip->un.v.units.name, AudioNvolume);
2241 		return 0;
2242 
2243 	case SB_OUTPUT_GAIN:
2244 		dip->type = AUDIO_MIXER_VALUE;
2245 		dip->mixer_class = SB_OUTPUT_CLASS;
2246 		dip->prev = dip->next = AUDIO_MIXER_LAST;
2247 		strcpy(dip->label.name, AudioNoutput);
2248 		dip->un.v.num_channels = 2;
2249 		strcpy(dip->un.v.units.name, AudioNvolume);
2250 		return 0;
2251 
2252 	case SB_AGC:
2253 		dip->type = AUDIO_MIXER_ENUM;
2254 		dip->mixer_class = SB_INPUT_CLASS;
2255 		dip->prev = dip->next = AUDIO_MIXER_LAST;
2256 		strcpy(dip->label.name, "agc");
2257 		dip->un.e.num_mem = 2;
2258 		strcpy(dip->un.e.member[0].label.name, AudioNoff);
2259 		dip->un.e.member[0].ord = 0;
2260 		strcpy(dip->un.e.member[1].label.name, AudioNon);
2261 		dip->un.e.member[1].ord = 1;
2262 		return 0;
2263 
2264 	case SB_EQUALIZATION_CLASS:
2265 		dip->type = AUDIO_MIXER_CLASS;
2266 		dip->mixer_class = SB_EQUALIZATION_CLASS;
2267 		dip->next = dip->prev = AUDIO_MIXER_LAST;
2268 		strcpy(dip->label.name, AudioCequalization);
2269 		return 0;
2270 
2271 	case SB_CD_IN_MUTE:
2272 		dip->prev = SB_CD_VOL;
2273 		dip->next = SB_CD_SWAP;
2274 		dip->mixer_class = SB_INPUT_CLASS;
2275 		goto mute;
2276 
2277 	case SB_MIC_IN_MUTE:
2278 		dip->prev = SB_MIC_VOL;
2279 		dip->next = SB_MIC_SWAP;
2280 		dip->mixer_class = SB_INPUT_CLASS;
2281 		goto mute;
2282 
2283 	case SB_LINE_IN_MUTE:
2284 		dip->prev = SB_LINE_IN_VOL;
2285 		dip->next = SB_LINE_SWAP;
2286 		dip->mixer_class = SB_INPUT_CLASS;
2287 		goto mute;
2288 
2289 	case SB_MIDI_IN_MUTE:
2290 		dip->prev = SB_MIDI_VOL;
2291 		dip->next = SB_MIDI_SWAP;
2292 		dip->mixer_class = SB_INPUT_CLASS;
2293 		goto mute;
2294 
2295 	case SB_CD_SWAP:
2296 		dip->prev = SB_CD_IN_MUTE;
2297 		dip->next = SB_CD_OUT_MUTE;
2298 		goto swap;
2299 
2300 	case SB_MIC_SWAP:
2301 		dip->prev = SB_MIC_IN_MUTE;
2302 		dip->next = SB_MIC_OUT_MUTE;
2303 		goto swap;
2304 
2305 	case SB_LINE_SWAP:
2306 		dip->prev = SB_LINE_IN_MUTE;
2307 		dip->next = SB_LINE_OUT_MUTE;
2308 		goto swap;
2309 
2310 	case SB_MIDI_SWAP:
2311 		dip->prev = SB_MIDI_IN_MUTE;
2312 		dip->next = AUDIO_MIXER_LAST;
2313 	swap:
2314 		dip->mixer_class = SB_INPUT_CLASS;
2315 		strcpy(dip->label.name, AudioNswap);
2316 		goto mute1;
2317 
2318 	case SB_CD_OUT_MUTE:
2319 		dip->prev = SB_CD_SWAP;
2320 		dip->next = AUDIO_MIXER_LAST;
2321 		dip->mixer_class = SB_OUTPUT_CLASS;
2322 		goto mute;
2323 
2324 	case SB_MIC_OUT_MUTE:
2325 		dip->prev = SB_MIC_SWAP;
2326 		dip->next = AUDIO_MIXER_LAST;
2327 		dip->mixer_class = SB_OUTPUT_CLASS;
2328 		goto mute;
2329 
2330 	case SB_LINE_OUT_MUTE:
2331 		dip->prev = SB_LINE_SWAP;
2332 		dip->next = AUDIO_MIXER_LAST;
2333 		dip->mixer_class = SB_OUTPUT_CLASS;
2334 	mute:
2335 		strcpy(dip->label.name, AudioNmute);
2336 	mute1:
2337 		dip->type = AUDIO_MIXER_ENUM;
2338 		dip->un.e.num_mem = 2;
2339 		strcpy(dip->un.e.member[0].label.name, AudioNoff);
2340 		dip->un.e.member[0].ord = 0;
2341 		strcpy(dip->un.e.member[1].label.name, AudioNon);
2342 		dip->un.e.member[1].ord = 1;
2343 		return 0;
2344 
2345 	}
2346 
2347 	return ENXIO;
2348 }
2349 
2350 void *
2351 sb_malloc(void *addr, int direction, size_t size)
2352 {
2353 	struct sbdsp_softc *sc;
2354 	int drq;
2355 
2356 	sc = addr;
2357 	if (sc->sc_drq8 != -1)
2358 		drq = sc->sc_drq8;
2359 	else
2360 		drq = sc->sc_drq16;
2361 	return isa_malloc(sc->sc_ic, drq, size, M_DEVBUF, M_WAITOK);
2362 }
2363 
2364 void
2365 sb_free(void *addr, void *ptr, size_t size)
2366 {
2367 
2368 	isa_free(ptr, M_DEVBUF);
2369 }
2370 
2371 size_t
2372 sb_round_buffersize(void *addr, int direction, size_t size)
2373 {
2374 	struct sbdsp_softc *sc;
2375 	bus_size_t maxsize;
2376 
2377 	sc = addr;
2378 	if (sc->sc_drq8 != -1)
2379 		maxsize = sc->sc_drq8_maxsize;
2380 	else
2381 		maxsize = sc->sc_drq16_maxsize;
2382 
2383 	if (size > maxsize)
2384 		size = maxsize;
2385 	return size;
2386 }
2387 
2388 paddr_t
2389 sb_mappage(void *addr, void *mem, off_t off, int prot)
2390 {
2391 
2392 	return isa_mappage(mem, off, prot);
2393 }
2394 
2395 int
2396 sbdsp_get_props(void *addr)
2397 {
2398 	struct sbdsp_softc *sc;
2399 
2400 	sc = addr;
2401 	return AUDIO_PROP_MMAP | AUDIO_PROP_INDEPENDENT |
2402 	       (sc->sc_fullduplex ? AUDIO_PROP_FULLDUPLEX : 0);
2403 }
2404 
2405 void
2406 sbdsp_get_locks(void *addr, kmutex_t **intr, kmutex_t **proc)
2407 {
2408 	struct sbdsp_softc *sc;
2409 
2410 	sc = addr;
2411 	*intr = &sc->sc_intr_lock;
2412 	*proc = &sc->sc_lock;
2413 }
2414 
2415 #if NMPU > 0
2416 /*
2417  * MIDI related routines.
2418  */
2419 
2420 int
2421 sbdsp_midi_open(void *addr, int flags, void (*iintr)(void *, int),
2422     void (*ointr)(void *), void *arg)
2423 {
2424 	struct sbdsp_softc *sc;
2425 
2426 	sc = addr;
2427 	DPRINTF(("sbdsp_midi_open: sc=%p\n", sc));
2428 
2429 	if (sc->sc_open != SB_CLOSED)
2430 		return EBUSY;
2431 	if (sbdsp_reset(sc) != 0)
2432 		return EIO;
2433 
2434 	sc->sc_open = SB_OPEN_MIDI;
2435 
2436 	if (sc->sc_model >= SB_20)
2437 		if (sbdsp_wdsp(sc, SB_MIDI_UART_INTR)) /* enter UART mode */
2438 			return EIO;
2439 
2440 	sc->sc_intr8 = sbdsp_midi_intr;
2441 	sc->sc_intrm = iintr;
2442 	sc->sc_argm = arg;
2443 
2444 	return 0;
2445 }
2446 
2447 void
2448 sbdsp_midi_close(void *addr)
2449 {
2450 	struct sbdsp_softc *sc;
2451 
2452 	sc = addr;
2453 	DPRINTF(("sbdsp_midi_close: sc=%p\n", sc));
2454 
2455 	if (sc->sc_model >= SB_20)
2456 		sbdsp_reset(sc); /* exit UART mode */
2457 
2458 	sc->sc_intrm = 0;
2459 	sc->sc_open = SB_CLOSED;
2460 }
2461 
2462 int
2463 sbdsp_midi_output(void *addr, int d)
2464 {
2465 	struct sbdsp_softc *sc;
2466 
2467 	sc = addr;
2468 	if (sc->sc_model < SB_20 && sbdsp_wdsp(sc, SB_MIDI_WRITE))
2469 		return EIO;
2470 	if (sbdsp_wdsp(sc, d))
2471 		return EIO;
2472 	return 0;
2473 }
2474 
2475 void
2476 sbdsp_midi_getinfo(void *addr, struct midi_info *mi)
2477 {
2478 	struct sbdsp_softc *sc;
2479 
2480 	sc = addr;
2481 	mi->name = sc->sc_model < SB_20 ? "SB MIDI cmd" : "SB MIDI UART";
2482 	mi->props = MIDI_PROP_CAN_INPUT;
2483 }
2484 
2485 int
2486 sbdsp_midi_intr(void *addr)
2487 {
2488 	struct sbdsp_softc *sc;
2489 
2490 	sc = addr;
2491 
2492 	KASSERT(mutex_owned(&sc->sc_intr_lock));
2493 
2494 	sc->sc_intrm(sc->sc_argm, sbdsp_rdsp(sc));
2495 	return (0);
2496 }
2497 #endif
2498