xref: /netbsd-src/sys/dev/isa/sbdsp.c (revision bdc22b2e01993381dcefeff2bc9b56ca75a4235c)
1 /*	$NetBSD: sbdsp.c,v 1.137 2017/11/04 01:46:56 nat 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 1.137 2017/11/04 01:46:56 nat 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:
644 			case AUDIO_ENCODING_SLINEAR_LE:
645 				bmode = SB_BMODE_SIGNED;
646 				break;
647 
648 			case AUDIO_ENCODING_ULINEAR_BE:
649 				if (p->precision == 16) {
650 					hw.encoding = AUDIO_ENCODING_ULINEAR_LE;
651 					swcode = swap_bytes;
652 				}
653 				/* fall into */
654 			case AUDIO_ENCODING_ULINEAR_LE:
655 				bmode = SB_BMODE_UNSIGNED;
656 				break;
657 
658 			case AUDIO_ENCODING_ULAW:
659 				hw.encoding = AUDIO_ENCODING_ULINEAR_LE;
660 				if (mode == AUMODE_PLAY) {
661 					hw.precision = hw.validbits = 16;
662 					swcode = mulaw_to_linear16;
663 					m = &sbpmodes[PLAY16];
664 				} else
665 					swcode = linear8_to_mulaw;
666 				bmode = SB_BMODE_UNSIGNED;
667 				break;
668 
669 			case AUDIO_ENCODING_ALAW:
670 				hw.encoding = AUDIO_ENCODING_ULINEAR_LE;
671 				if (mode == AUMODE_PLAY) {
672 					hw.precision = hw.validbits = 16;
673 					swcode = alaw_to_linear16;
674 					m = &sbpmodes[PLAY16];
675 				} else
676 					swcode = linear8_to_alaw;
677 				bmode = SB_BMODE_UNSIGNED;
678 				break;
679 			default:
680 				return EINVAL;
681 			}
682 			if (p->channels == 2)
683 				bmode |= SB_BMODE_STEREO;
684 		} else if (m->model == SB_JAZZ && m->precision == 16) {
685 			switch (p->encoding) {
686 			case AUDIO_ENCODING_SLINEAR:
687 			case AUDIO_ENCODING_SLINEAR_LE:
688 				break;
689 			case AUDIO_ENCODING_ULINEAR_LE:
690 				hw.encoding = AUDIO_ENCODING_SLINEAR_LE;
691 				swcode = change_sign16;
692 				break;
693 			case AUDIO_ENCODING_SLINEAR_BE:
694 				hw.encoding = AUDIO_ENCODING_SLINEAR_LE;
695 				swcode = swap_bytes;
696 				break;
697 			case AUDIO_ENCODING_ULINEAR_BE:
698 				hw.encoding = AUDIO_ENCODING_SLINEAR_LE;
699 				swcode = swap_bytes_change_sign16;
700 				break;
701 			case AUDIO_ENCODING_ULAW:
702 				hw.encoding = AUDIO_ENCODING_ULINEAR_LE;
703 				swcode = mode == AUMODE_PLAY ?
704 					mulaw_to_linear8 : linear8_to_mulaw;
705 				break;
706 			case AUDIO_ENCODING_ALAW:
707 				hw.encoding = AUDIO_ENCODING_ULINEAR_LE;
708 				swcode = mode == AUMODE_PLAY ?
709 					alaw_to_linear8 : linear8_to_alaw;
710 				break;
711 			default:
712 				return EINVAL;
713 			}
714 			tc = SB_RATE_TO_TC(p->sample_rate * p->channels);
715 			p->sample_rate = SB_TC_TO_RATE(tc) / p->channels;
716 			hw.sample_rate = p->sample_rate;
717 		} else {
718 			switch (p->encoding) {
719 			case AUDIO_ENCODING_SLINEAR_BE:
720 			case AUDIO_ENCODING_SLINEAR_LE:
721 			case AUDIO_ENCODING_SLINEAR:
722 				hw.encoding = AUDIO_ENCODING_ULINEAR_LE;
723 				swcode = change_sign8;
724 				break;
725 			case AUDIO_ENCODING_ULINEAR_BE:
726 			case AUDIO_ENCODING_ULINEAR_LE:
727 				break;
728 			case AUDIO_ENCODING_ULAW:
729 				hw.encoding = AUDIO_ENCODING_ULINEAR_LE;
730 				swcode = mode == AUMODE_PLAY ?
731 					mulaw_to_linear8 : linear8_to_mulaw;
732 				break;
733 			case AUDIO_ENCODING_ALAW:
734 				hw.encoding = AUDIO_ENCODING_ULINEAR_LE;
735 				swcode = mode == AUMODE_PLAY ?
736 					alaw_to_linear8 : linear8_to_alaw;
737 				break;
738 			default:
739 				return EINVAL;
740 			}
741 			tc = SB_RATE_TO_TC(p->sample_rate * p->channels);
742 			p->sample_rate = SB_TC_TO_RATE(tc) / p->channels;
743 			hw.sample_rate = p->sample_rate;
744 		}
745 
746 		chan = m->precision == 16 ? sc->sc_drq16 : sc->sc_drq8;
747 		if (mode == AUMODE_PLAY) {
748 			sc->sc_o.rate = rate;
749 			sc->sc_o.tc = tc;
750 			sc->sc_o.modep = m;
751 			sc->sc_o.bmode = bmode;
752 			sc->sc_o.dmachan = chan;
753 		} else {
754 			sc->sc_i.rate = rate;
755 			sc->sc_i.tc = tc;
756 			sc->sc_i.modep = m;
757 			sc->sc_i.bmode = bmode;
758 			sc->sc_i.dmachan = chan;
759 		}
760 
761 		if (swcode != NULL)
762 			fil->append(fil, swcode, &hw);
763 		DPRINTF(("sbdsp_set_params: model=%d, mode=%d, rate=%u, "
764 			 "prec=%d, chan=%d, enc=%d -> tc=%02x, cmd=%02x, "
765 			 "bmode=%02x, cmdchan=%02x\n", sc->sc_model, mode,
766 			 p->sample_rate, p->precision, p->channels,
767 			 p->encoding, tc, m->cmd, bmode, m->cmdchan));
768 
769 	}
770 
771 	if (sc->sc_fullduplex &&
772 	    usemode == (AUMODE_PLAY | AUMODE_RECORD) &&
773 	    sc->sc_i.dmachan == sc->sc_o.dmachan) {
774 		DPRINTF(("sbdsp_set_params: fd=%d, usemode=%d, idma=%d, "
775 			 "odma=%d\n", sc->sc_fullduplex, usemode,
776 			 sc->sc_i.dmachan, sc->sc_o.dmachan));
777 		if (sc->sc_o.dmachan == sc->sc_drq8) {
778 			/* Use 16 bit DMA for playing by expanding the samples. */
779 			hw.precision = hw.validbits = 16;
780 			pfil->append(pfil, linear8_to_linear16, &hw);
781 			sc->sc_o.modep = &sbpmodes[PLAY16];
782 			sc->sc_o.dmachan = sc->sc_drq16;
783 		} else {
784 			return EINVAL;
785 		}
786 	}
787 	DPRINTF(("sbdsp_set_params ichan=%d, ochan=%d\n",
788 		 sc->sc_i.dmachan, sc->sc_o.dmachan));
789 
790 	return 0;
791 }
792 
793 void
794 sbdsp_set_ifilter(void *addr, int which)
795 {
796 	struct sbdsp_softc *sc;
797 	int mixval;
798 
799 	sc = addr;
800 
801 	mixval = sbdsp_mix_read(sc, SBP_INFILTER) & ~SBP_IFILTER_MASK;
802 	switch (which) {
803 	case 0:
804 		mixval |= SBP_FILTER_OFF;
805 		break;
806 	case SB_TREBLE:
807 		mixval |= SBP_FILTER_ON | SBP_IFILTER_HIGH;
808 		break;
809 	case SB_BASS:
810 		mixval |= SBP_FILTER_ON | SBP_IFILTER_LOW;
811 		break;
812 	default:
813 		return;
814 	}
815 	sc->in_filter = mixval & SBP_IFILTER_MASK;
816 	sbdsp_mix_write(sc, SBP_INFILTER, mixval);
817 }
818 
819 int
820 sbdsp_get_ifilter(void *addr)
821 {
822 	struct sbdsp_softc *sc;
823 
824 	sc = addr;
825 	sc->in_filter =
826 		sbdsp_mix_read(sc, SBP_INFILTER) & SBP_IFILTER_MASK;
827 	switch (sc->in_filter) {
828 	case SBP_FILTER_ON|SBP_IFILTER_HIGH:
829 		return SB_TREBLE;
830 	case SBP_FILTER_ON|SBP_IFILTER_LOW:
831 		return SB_BASS;
832 	default:
833 		return 0;
834 	}
835 }
836 
837 int
838 sbdsp_set_in_ports(struct sbdsp_softc *sc, int mask)
839 {
840 	int bitsl, bitsr;
841 	int sbport;
842 
843 	KASSERT(mutex_owned(&sc->sc_lock));
844 	KASSERT(mutex_owned(&sc->sc_intr_lock));
845 
846 	if (sc->sc_open == SB_OPEN_MIDI)
847 		return EBUSY;
848 
849 	DPRINTF(("sbdsp_set_in_ports: model=%d, mask=%x\n",
850 		 sc->sc_mixer_model, mask));
851 
852 	switch(sc->sc_mixer_model) {
853 	case SBM_NONE:
854 		return EINVAL;
855 	case SBM_CT1335:
856 		if (mask != (1 << SB_MIC_VOL))
857 			return EINVAL;
858 		break;
859 	case SBM_CT1345:
860 		switch (mask) {
861 		case 1 << SB_MIC_VOL:
862 			sbport = SBP_FROM_MIC;
863 			break;
864 		case 1 << SB_LINE_IN_VOL:
865 			sbport = SBP_FROM_LINE;
866 			break;
867 		case 1 << SB_CD_VOL:
868 			sbport = SBP_FROM_CD;
869 			break;
870 		default:
871 			return EINVAL;
872 		}
873 		sbdsp_mix_write(sc, SBP_RECORD_SOURCE, sbport | sc->in_filter);
874 		break;
875 	case SBM_CT1XX5:
876 	case SBM_CT1745:
877 		if (mask & ~((1<<SB_MIDI_VOL) | (1<<SB_LINE_IN_VOL) |
878 			     (1<<SB_CD_VOL) | (1<<SB_MIC_VOL)))
879 			return EINVAL;
880 		bitsr = 0;
881 		if (mask & (1<<SB_MIDI_VOL))    bitsr |= SBP_MIDI_SRC_R;
882 		if (mask & (1<<SB_LINE_IN_VOL)) bitsr |= SBP_LINE_SRC_R;
883 		if (mask & (1<<SB_CD_VOL))      bitsr |= SBP_CD_SRC_R;
884 		bitsl = SB_SRC_R_TO_L(bitsr);
885 		if (mask & (1<<SB_MIC_VOL)) {
886 			bitsl |= SBP_MIC_SRC;
887 			bitsr |= SBP_MIC_SRC;
888 		}
889 		sbdsp_mix_write(sc, SBP_RECORD_SOURCE_L, bitsl);
890 		sbdsp_mix_write(sc, SBP_RECORD_SOURCE_R, bitsr);
891 		break;
892 	}
893 	sc->in_mask = mask;
894 
895 	return 0;
896 }
897 
898 int
899 sbdsp_speaker_ctl(void *addr, int newstate)
900 {
901 	struct sbdsp_softc *sc;
902 
903 	sc = addr;
904 	if (sc->sc_open == SB_OPEN_MIDI)
905 		return EBUSY;
906 
907 	if ((newstate == SPKR_ON) &&
908 	    (sc->spkr_state == SPKR_OFF)) {
909 		sbdsp_spkron(sc);
910 		sc->spkr_state = SPKR_ON;
911 	}
912 	if ((newstate == SPKR_OFF) &&
913 	    (sc->spkr_state == SPKR_ON)) {
914 		sbdsp_spkroff(sc);
915 		sc->spkr_state = SPKR_OFF;
916 	}
917 	return 0;
918 }
919 
920 int
921 sbdsp_round_blocksize(void *addr, int blk, int mode,
922     const audio_params_t *param)
923 {
924 	return blk & -4;	/* round to biggest sample size */
925 }
926 
927 int
928 sbdsp_open(void *addr, int flags)
929 {
930 	struct sbdsp_softc *sc;
931 	int error, state;
932 
933 	sc = addr;
934 	DPRINTF(("sbdsp_open: sc=%p\n", sc));
935 
936 	if (sc->sc_open != SB_CLOSED)
937 		return EBUSY;
938 	sc->sc_open = SB_OPEN_AUDIO;
939 	state = 0;
940 
941 	if (sc->sc_drq8 != -1) {
942 		error = isa_drq_alloc(sc->sc_ic, sc->sc_drq8);
943 		if (error != 0)
944 			goto bad;
945 		state |= 1;
946 	}
947 
948 	if (sc->sc_drq16 != -1 && sc->sc_drq16 != sc->sc_drq8) {
949 		error = isa_drq_alloc(sc->sc_ic, sc->sc_drq16);
950 		if (error != 0)
951 			goto bad;
952 		state |= 2;
953 	}
954 
955 
956 	if (sbdsp_reset(sc) != 0) {
957 		error = EIO;
958 		goto bad;
959 	}
960 
961 	if (ISSBPRO(sc) &&
962 	    sbdsp_wdsp(sc, SB_DSP_RECORD_MONO) < 0) {
963 		DPRINTF(("sbdsp_open: can't set mono mode\n"));
964 		/* we'll readjust when it's time for DMA. */
965 	}
966 
967 	/*
968 	 * Leave most things as they were; users must change things if
969 	 * the previous process didn't leave it they way they wanted.
970 	 * Looked at another way, it's easy to set up a configuration
971 	 * in one program and leave it for another to inherit.
972 	 */
973 	DPRINTF(("sbdsp_open: opened\n"));
974 
975 	return 0;
976 
977 bad:
978 	if (state & 1)
979 		isa_drq_free(sc->sc_ic, sc->sc_drq8);
980 	if (state & 2)
981 		isa_drq_free(sc->sc_ic, sc->sc_drq16);
982 
983 	sc->sc_open = SB_CLOSED;
984 	return error;
985 }
986 
987 void
988 sbdsp_close(void *addr)
989 {
990 	struct sbdsp_softc *sc;
991 
992 	sc = addr;
993 	DPRINTF(("sbdsp_close: sc=%p\n", sc));
994 
995 	sbdsp_spkroff(sc);
996 	sc->spkr_state = SPKR_OFF;
997 
998 	sc->sc_intr8 = 0;
999 	sc->sc_intr16 = 0;
1000 
1001 	if (sc->sc_drq8 != -1)
1002 		isa_drq_free(sc->sc_ic, sc->sc_drq8);
1003 	if (sc->sc_drq16 != -1 && sc->sc_drq16 != sc->sc_drq8)
1004 		isa_drq_free(sc->sc_ic, sc->sc_drq16);
1005 
1006 	sc->sc_open = SB_CLOSED;
1007 	DPRINTF(("sbdsp_close: closed\n"));
1008 }
1009 
1010 /*
1011  * Lower-level routines
1012  */
1013 
1014 /*
1015  * Reset the card.
1016  * Return non-zero if the card isn't detected.
1017  */
1018 int
1019 sbdsp_reset(struct sbdsp_softc *sc)
1020 {
1021 	bus_space_tag_t iot;
1022 	bus_space_handle_t ioh;
1023 
1024 	iot = sc->sc_iot;
1025 	ioh = sc->sc_ioh;
1026 	sc->sc_intr8 = 0;
1027 	sc->sc_intr16 = 0;
1028 	sc->sc_intrm = 0;
1029 
1030 	/*
1031 	 * See SBK, section 11.3.
1032 	 * We pulse a reset signal into the card.
1033 	 * Gee, what a brilliant hardware design.
1034 	 */
1035 	bus_space_write_1(iot, ioh, SBP_DSP_RESET, 1);
1036 	delay(10);
1037 	bus_space_write_1(iot, ioh, SBP_DSP_RESET, 0);
1038 	delay(30);
1039 	if (sbdsp_rdsp(sc) != SB_MAGIC)
1040 		return -1;
1041 
1042 	return 0;
1043 }
1044 
1045 /*
1046  * Write a byte to the dsp.
1047  * We are at the mercy of the card as we use a
1048  * polling loop and wait until it can take the byte.
1049  */
1050 int
1051 sbdsp_wdsp(struct sbdsp_softc *sc, int v)
1052 {
1053 	bus_space_tag_t iot;
1054 	bus_space_handle_t ioh;
1055 	int i;
1056 	u_char x;
1057 
1058 	iot = sc->sc_iot;
1059 	ioh = sc->sc_ioh;
1060 	for (i = SBDSP_NPOLL; --i >= 0; ) {
1061 		x = bus_space_read_1(iot, ioh, SBP_DSP_WSTAT);
1062 		delay(10);
1063 		if ((x & SB_DSP_BUSY) == 0) {
1064 			bus_space_write_1(iot, ioh, SBP_DSP_WRITE, v);
1065 			delay(10);
1066 			return 0;
1067 		}
1068 	}
1069 	++sberr.wdsp;
1070 	return -1;
1071 }
1072 
1073 /*
1074  * Read a byte from the DSP, using polling.
1075  */
1076 int
1077 sbdsp_rdsp(struct sbdsp_softc *sc)
1078 {
1079 	bus_space_tag_t iot;
1080 	bus_space_handle_t ioh;
1081 	int i;
1082 	u_char x;
1083 
1084 	iot = sc->sc_iot;
1085 	ioh = sc->sc_ioh;
1086 	for (i = SBDSP_NPOLL; --i >= 0; ) {
1087 		x = bus_space_read_1(iot, ioh, SBP_DSP_RSTAT);
1088 		delay(10);
1089 		if (x & SB_DSP_READY) {
1090 			x = bus_space_read_1(iot, ioh, SBP_DSP_READ);
1091 			delay(10);
1092 			return x;
1093 		}
1094 	}
1095 	++sberr.rdsp;
1096 	return -1;
1097 }
1098 
1099 void
1100 sbdsp_pause(struct sbdsp_softc *sc)
1101 {
1102 
1103 	KASSERT(mutex_owned(&sc->sc_intr_lock));
1104 	mutex_spin_exit(&sc->sc_intr_lock);
1105 	(void)kpause("sbpause", false, hz/8, &sc->sc_lock);
1106 	mutex_spin_enter(&sc->sc_intr_lock);
1107 }
1108 
1109 /*
1110  * Turn on the speaker.  The SBK documention says this operation
1111  * can take up to 1/10 of a second.  Higher level layers should
1112  * probably let the task sleep for this amount of time after
1113  * calling here.  Otherwise, things might not work (because
1114  * sbdsp_wdsp() and sbdsp_rdsp() will probably timeout.)
1115  *
1116  * These engineers had their heads up their ass when
1117  * they designed this card.
1118  */
1119 void
1120 sbdsp_spkron(struct sbdsp_softc *sc)
1121 {
1122 
1123 	(void)sbdsp_wdsp(sc, SB_DSP_SPKR_ON);
1124 	sbdsp_pause(sc);
1125 }
1126 
1127 /*
1128  * Turn off the speaker; see comment above.
1129  */
1130 void
1131 sbdsp_spkroff(struct sbdsp_softc *sc)
1132 {
1133 
1134 	(void)sbdsp_wdsp(sc, SB_DSP_SPKR_OFF);
1135 	sbdsp_pause(sc);
1136 }
1137 
1138 /*
1139  * Read the version number out of the card.
1140  * Store version information in the softc.
1141  */
1142 void
1143 sbversion(struct sbdsp_softc *sc)
1144 {
1145 	int v;
1146 
1147 	sc->sc_model = SB_UNK;
1148 	sc->sc_version = 0;
1149 	if (sbdsp_wdsp(sc, SB_DSP_VERSION) < 0)
1150 		return;
1151 	v = sbdsp_rdsp(sc) << 8;
1152 	v |= sbdsp_rdsp(sc);
1153 	if (v < 0)
1154 		return;
1155 	sc->sc_version = v;
1156 	switch(SBVER_MAJOR(v)) {
1157 	case 1:
1158 		sc->sc_mixer_model = SBM_NONE;
1159 		sc->sc_model = SB_1;
1160 		break;
1161 	case 2:
1162 		/* Some SB2 have a mixer, some don't. */
1163 		sbdsp_mix_write(sc, SBP_1335_MASTER_VOL, 0x04);
1164 		sbdsp_mix_write(sc, SBP_1335_MIDI_VOL,   0x06);
1165 		/* Check if we can read back the mixer values. */
1166 		if ((sbdsp_mix_read(sc, SBP_1335_MASTER_VOL) & 0x0e) == 0x04 &&
1167 		    (sbdsp_mix_read(sc, SBP_1335_MIDI_VOL)   & 0x0e) == 0x06)
1168 			sc->sc_mixer_model = SBM_CT1335;
1169 		else
1170 			sc->sc_mixer_model = SBM_NONE;
1171 		if (SBVER_MINOR(v) == 0)
1172 			sc->sc_model = SB_20;
1173 		else
1174 			sc->sc_model = SB_2x;
1175 		break;
1176 	case 3:
1177 		sc->sc_mixer_model = SBM_CT1345;
1178 		sc->sc_model = SB_PRO;
1179 		break;
1180 	case 4:
1181 #if 0
1182 /* XXX This does not work */
1183 		/* Most SB16 have a tone controls, but some don't. */
1184 		sbdsp_mix_write(sc, SB16P_TREBLE_L, 0x80);
1185 		/* Check if we can read back the mixer value. */
1186 		if ((sbdsp_mix_read(sc, SB16P_TREBLE_L) & 0xf0) == 0x80)
1187 			sc->sc_mixer_model = SBM_CT1745;
1188 		else
1189 			sc->sc_mixer_model = SBM_CT1XX5;
1190 #else
1191 		sc->sc_mixer_model = SBM_CT1745;
1192 #endif
1193 #if 0
1194 /* XXX figure out a good way of determining the model */
1195 		/* XXX what about SB_32 */
1196 		if (SBVER_MINOR(v) == 16)
1197 			sc->sc_model = SB_64;
1198 		else
1199 #endif
1200 			sc->sc_model = SB_16;
1201 		break;
1202 	}
1203 }
1204 
1205 int
1206 sbdsp_set_timeconst(struct sbdsp_softc *sc, int tc)
1207 {
1208 
1209 	DPRINTF(("sbdsp_set_timeconst: sc=%p tc=%d\n", sc, tc));
1210 	if (sbdsp_wdsp(sc, SB_DSP_TIMECONST) < 0 ||
1211 	    sbdsp_wdsp(sc, tc) < 0)
1212 		return EIO;
1213 	return 0;
1214 }
1215 
1216 int
1217 sbdsp16_set_rate(struct sbdsp_softc *sc, int cmd, int rate)
1218 {
1219 
1220 	DPRINTF(("sbdsp16_set_rate: sc=%p cmd=0x%02x rate=%d\n", sc, cmd,
1221 	    rate));
1222 	if (sbdsp_wdsp(sc, cmd) < 0 ||
1223 	    sbdsp_wdsp(sc, rate >> 8) < 0 ||
1224 	    sbdsp_wdsp(sc, rate) < 0)
1225 		return EIO;
1226 	return 0;
1227 }
1228 
1229 int
1230 sbdsp_trigger_input(
1231 	void *addr,
1232 	void *start, void *end,
1233 	int blksize,
1234 	void (*intr)(void *),
1235 	void *arg,
1236 	const audio_params_t *param)
1237 {
1238 	struct sbdsp_softc *sc;
1239 	int stereo;
1240 	int width;
1241 	int filter;
1242 
1243 	sc = addr;
1244 	stereo = param->channels == 2;
1245 	width = param->precision;
1246 #ifdef DIAGNOSTIC
1247 	if (stereo && (blksize & 1)) {
1248 		DPRINTF(("stereo record odd bytes (%d)\n", blksize));
1249 		return EIO;
1250 	}
1251 	if (sc->sc_i.run != SB_NOTRUNNING)
1252 		printf("sbdsp_trigger_input: already running\n");
1253 #endif
1254 
1255 	sc->sc_intrr = intr;
1256 	sc->sc_argr = arg;
1257 
1258 	if (width == 8) {
1259 #ifdef DIAGNOSTIC
1260 		if (sc->sc_i.dmachan != sc->sc_drq8) {
1261 			printf("sbdsp_trigger_input: width=%d bad chan %d\n",
1262 			    width, sc->sc_i.dmachan);
1263 			return EIO;
1264 		}
1265 #endif
1266 		sc->sc_intr8 = sbdsp_block_input;
1267 	} else {
1268 #ifdef DIAGNOSTIC
1269 		if (sc->sc_i.dmachan != sc->sc_drq16) {
1270 			printf("sbdsp_trigger_input: width=%d bad chan %d\n",
1271 			    width, sc->sc_i.dmachan);
1272 			return EIO;
1273 		}
1274 #endif
1275 		sc->sc_intr16 = sbdsp_block_input;
1276 	}
1277 
1278 	if ((sc->sc_model == SB_JAZZ) ? (sc->sc_i.dmachan > 3) : (width == 16))
1279 		blksize >>= 1;
1280 	--blksize;
1281 	sc->sc_i.blksize = blksize;
1282 
1283 	if (ISSBPRO(sc)) {
1284 		if (sbdsp_wdsp(sc, sc->sc_i.modep->cmdchan) < 0)
1285 			return EIO;
1286 		filter = stereo ? SBP_FILTER_OFF : sc->in_filter;
1287 		sbdsp_mix_write(sc, SBP_INFILTER,
1288 		    (sbdsp_mix_read(sc, SBP_INFILTER) & ~SBP_IFILTER_MASK) |
1289 		    filter);
1290 	}
1291 
1292 	if (ISSB16CLASS(sc)) {
1293 		if (sbdsp16_set_rate(sc, SB_DSP16_INPUTRATE, sc->sc_i.rate)) {
1294 			DPRINTF(("sbdsp_trigger_input: rate=%d set failed\n",
1295 				 sc->sc_i.rate));
1296 			return EIO;
1297 		}
1298 	} else {
1299 		if (sbdsp_set_timeconst(sc, sc->sc_i.tc)) {
1300 			DPRINTF(("sbdsp_trigger_input: tc=%d set failed\n",
1301 				 sc->sc_i.rate));
1302 			return EIO;
1303 		}
1304 	}
1305 
1306 	DPRINTF(("sbdsp: DMA start loop input start=%p end=%p chan=%d\n",
1307 	    start, end, sc->sc_i.dmachan));
1308 	isa_dmastart(sc->sc_ic, sc->sc_i.dmachan, start,
1309 	    (char *)end - (char *)start, NULL,
1310 	    DMAMODE_READ | DMAMODE_LOOPDEMAND, BUS_DMA_NOWAIT);
1311 
1312 	return sbdsp_block_input(addr);
1313 }
1314 
1315 int
1316 sbdsp_block_input(void *addr)
1317 {
1318 	struct sbdsp_softc *sc;
1319 	int cc;
1320 
1321 	sc = addr;
1322 	cc = sc->sc_i.blksize;
1323 	DPRINTFN(2, ("sbdsp_block_input: sc=%p cc=%d\n", addr, cc));
1324 
1325 	if (sc->sc_i.run != SB_NOTRUNNING)
1326 		sc->sc_intrr(sc->sc_argr);
1327 
1328 	if (sc->sc_model == SB_1) {
1329 		/* Non-looping mode, start DMA */
1330 		if (sbdsp_wdsp(sc, sc->sc_i.modep->cmd) < 0 ||
1331 		    sbdsp_wdsp(sc, cc) < 0 ||
1332 		    sbdsp_wdsp(sc, cc >> 8) < 0) {
1333 			DPRINTF(("sbdsp_block_input: SB1 DMA start failed\n"));
1334 			return EIO;
1335 		}
1336 		sc->sc_i.run = SB_RUNNING;
1337 	} else if (sc->sc_i.run == SB_NOTRUNNING) {
1338 		/* Initialize looping PCM */
1339 		if (ISSB16CLASS(sc)) {
1340 			DPRINTFN(3, ("sbdsp16 input command cmd=0x%02x bmode=0x%02x cc=%d\n",
1341 			    sc->sc_i.modep->cmd, sc->sc_i.bmode, cc));
1342 			if (sbdsp_wdsp(sc, sc->sc_i.modep->cmd) < 0 ||
1343 			    sbdsp_wdsp(sc, sc->sc_i.bmode) < 0 ||
1344 			    sbdsp_wdsp(sc, cc) < 0 ||
1345 			    sbdsp_wdsp(sc, cc >> 8) < 0) {
1346 				DPRINTF(("sbdsp_block_input: SB16 DMA start failed\n"));
1347 				return EIO;
1348 			}
1349 		} else {
1350 			DPRINTF(("sbdsp_block_input: set blocksize=%d\n", cc));
1351 			if (sbdsp_wdsp(sc, SB_DSP_BLOCKSIZE) < 0 ||
1352 			    sbdsp_wdsp(sc, cc) < 0 ||
1353 			    sbdsp_wdsp(sc, cc >> 8) < 0) {
1354 				DPRINTF(("sbdsp_block_input: SB2 DMA blocksize failed\n"));
1355 				return EIO;
1356 			}
1357 			if (sbdsp_wdsp(sc, sc->sc_i.modep->cmd) < 0) {
1358 				DPRINTF(("sbdsp_block_input: SB2 DMA start failed\n"));
1359 				return EIO;
1360 			}
1361 		}
1362 		sc->sc_i.run = SB_LOOPING;
1363 	}
1364 
1365 	return 0;
1366 }
1367 
1368 int
1369 sbdsp_trigger_output(
1370 	void *addr,
1371 	void *start, void *end,
1372 	int blksize,
1373 	void (*intr)(void *),
1374 	void *arg,
1375 	const audio_params_t *param)
1376 {
1377 	struct sbdsp_softc *sc;
1378 	int stereo;
1379 	int width;
1380 	int cmd;
1381 
1382 	sc = addr;
1383 	stereo = param->channels == 2;
1384 	width = param->precision;
1385 #ifdef DIAGNOSTIC
1386 	if (stereo && (blksize & 1)) {
1387 		DPRINTF(("stereo playback odd bytes (%d)\n", blksize));
1388 		return EIO;
1389 	}
1390 	if (sc->sc_o.run != SB_NOTRUNNING)
1391 		printf("sbdsp_trigger_output: already running\n");
1392 #endif
1393 
1394 	sc->sc_intrp = intr;
1395 	sc->sc_argp = arg;
1396 
1397 	if (width == 8) {
1398 #ifdef DIAGNOSTIC
1399 		if (sc->sc_o.dmachan != sc->sc_drq8) {
1400 			printf("sbdsp_trigger_output: width=%d bad chan %d\n",
1401 			    width, sc->sc_o.dmachan);
1402 			return EIO;
1403 		}
1404 #endif
1405 		sc->sc_intr8 = sbdsp_block_output;
1406 	} else {
1407 #ifdef DIAGNOSTIC
1408 		if (sc->sc_o.dmachan != sc->sc_drq16) {
1409 			printf("sbdsp_trigger_output: width=%d bad chan %d\n",
1410 			    width, sc->sc_o.dmachan);
1411 			return EIO;
1412 		}
1413 #endif
1414 		sc->sc_intr16 = sbdsp_block_output;
1415 	}
1416 
1417 	if ((sc->sc_model == SB_JAZZ) ? (sc->sc_o.dmachan > 3) : (width == 16))
1418 		blksize >>= 1;
1419 	--blksize;
1420 	sc->sc_o.blksize = blksize;
1421 
1422 	if (ISSBPRO(sc)) {
1423 		/* make sure we re-set stereo mixer bit when we start output. */
1424 		sbdsp_mix_write(sc, SBP_STEREO,
1425 		    (sbdsp_mix_read(sc, SBP_STEREO) & ~SBP_PLAYMODE_MASK) |
1426 		    (stereo ?  SBP_PLAYMODE_STEREO : SBP_PLAYMODE_MONO));
1427 		cmd = sc->sc_o.modep->cmdchan;
1428 		if (cmd && sbdsp_wdsp(sc, cmd) < 0)
1429 			return EIO;
1430 	}
1431 
1432 	if (ISSB16CLASS(sc)) {
1433 		if (sbdsp16_set_rate(sc, SB_DSP16_OUTPUTRATE, sc->sc_o.rate)) {
1434 			DPRINTF(("sbdsp_trigger_output: rate=%d set failed\n",
1435 				 sc->sc_o.rate));
1436 			return EIO;
1437 		}
1438 	} else {
1439 		if (sbdsp_set_timeconst(sc, sc->sc_o.tc)) {
1440 			DPRINTF(("sbdsp_trigger_output: tc=%d set failed\n",
1441 				 sc->sc_o.rate));
1442 			return EIO;
1443 		}
1444 	}
1445 
1446 	DPRINTF(("sbdsp: DMA start loop output start=%p end=%p chan=%d\n",
1447 	    start, end, sc->sc_o.dmachan));
1448 	isa_dmastart(sc->sc_ic, sc->sc_o.dmachan, start,
1449 	    (char *)end - (char *)start, NULL,
1450 	    DMAMODE_WRITE | DMAMODE_LOOPDEMAND, BUS_DMA_NOWAIT);
1451 
1452 	return sbdsp_block_output(addr);
1453 }
1454 
1455 int
1456 sbdsp_block_output(void *addr)
1457 {
1458 	struct sbdsp_softc *sc;
1459 	int cc;
1460 
1461 	sc = addr;
1462 	cc = sc->sc_o.blksize;
1463 	DPRINTFN(2, ("sbdsp_block_output: sc=%p cc=%d\n", addr, cc));
1464 
1465 	if (sc->sc_o.run != SB_NOTRUNNING)
1466 		sc->sc_intrp(sc->sc_argp);
1467 
1468 	if (sc->sc_model == SB_1) {
1469 		/* Non-looping mode, initialized. Start DMA and PCM */
1470 		if (sbdsp_wdsp(sc, sc->sc_o.modep->cmd) < 0 ||
1471 		    sbdsp_wdsp(sc, cc) < 0 ||
1472 		    sbdsp_wdsp(sc, cc >> 8) < 0) {
1473 			DPRINTF(("sbdsp_block_output: SB1 DMA start failed\n"));
1474 			return EIO;
1475 		}
1476 		sc->sc_o.run = SB_RUNNING;
1477 	} else if (sc->sc_o.run == SB_NOTRUNNING) {
1478 		/* Initialize looping PCM */
1479 		if (ISSB16CLASS(sc)) {
1480 			DPRINTF(("sbdsp_block_output: SB16 cmd=0x%02x bmode=0x%02x cc=%d\n",
1481 			    sc->sc_o.modep->cmd,sc->sc_o.bmode, cc));
1482 			if (sbdsp_wdsp(sc, sc->sc_o.modep->cmd) < 0 ||
1483 			    sbdsp_wdsp(sc, sc->sc_o.bmode) < 0 ||
1484 			    sbdsp_wdsp(sc, cc) < 0 ||
1485 			    sbdsp_wdsp(sc, cc >> 8) < 0) {
1486 				DPRINTF(("sbdsp_block_output: SB16 DMA start failed\n"));
1487 				return EIO;
1488 			}
1489 		} else {
1490 			DPRINTF(("sbdsp_block_output: set blocksize=%d\n", cc));
1491 			if (sbdsp_wdsp(sc, SB_DSP_BLOCKSIZE) < 0 ||
1492 			    sbdsp_wdsp(sc, cc) < 0 ||
1493 			    sbdsp_wdsp(sc, cc >> 8) < 0) {
1494 				DPRINTF(("sbdsp_block_output: SB2 DMA blocksize failed\n"));
1495 				return EIO;
1496 			}
1497 			if (sbdsp_wdsp(sc, sc->sc_o.modep->cmd) < 0) {
1498 				DPRINTF(("sbdsp_block_output: SB2 DMA start failed\n"));
1499 				return EIO;
1500 			}
1501 		}
1502 		sc->sc_o.run = SB_LOOPING;
1503 	}
1504 
1505 	return 0;
1506 }
1507 
1508 int
1509 sbdsp_halt_output(void *addr)
1510 {
1511 	struct sbdsp_softc *sc;
1512 
1513 	sc = addr;
1514 	if (sc->sc_o.run != SB_NOTRUNNING) {
1515 		if (sbdsp_wdsp(sc, sc->sc_o.modep->halt) < 0)
1516 			printf("sbdsp_halt_output: failed to halt\n");
1517 		isa_dmaabort(sc->sc_ic, sc->sc_o.dmachan);
1518 		sc->sc_o.run = SB_NOTRUNNING;
1519 	}
1520 	return 0;
1521 }
1522 
1523 int
1524 sbdsp_halt_input(void *addr)
1525 {
1526 	struct sbdsp_softc *sc;
1527 
1528 	sc = addr;
1529 	if (sc->sc_i.run != SB_NOTRUNNING) {
1530 		if (sbdsp_wdsp(sc, sc->sc_i.modep->halt) < 0)
1531 			printf("sbdsp_halt_input: failed to halt\n");
1532 		isa_dmaabort(sc->sc_ic, sc->sc_i.dmachan);
1533 		sc->sc_i.run = SB_NOTRUNNING;
1534 	}
1535 	return 0;
1536 }
1537 
1538 /*
1539  * Only the DSP unit on the sound blaster generates interrupts.
1540  * There are three cases of interrupt: reception of a midi byte
1541  * (when mode is enabled), completion of DMA transmission, or
1542  * completion of a DMA reception.
1543  *
1544  * If there is interrupt sharing or a spurious interrupt occurs
1545  * there is no way to distinguish this on an SB2.  So if you have
1546  * an SB2 and experience problems, buy an SB16 (it's only $40).
1547  */
1548 int
1549 sbdsp_intr(void *arg)
1550 {
1551 	struct sbdsp_softc *sc = arg;
1552 #if NMPU > 0
1553 	struct mpu_softc *sc_mpu = device_private(sc->sc_mpudev);
1554 #endif
1555 	u_char irq;
1556 
1557 	DPRINTFN(2, ("sbdsp_intr: intr8=%p, intr16=%p\n",
1558 		   sc->sc_intr8, sc->sc_intr16));
1559 
1560 	mutex_spin_enter(&sc->sc_intr_lock);
1561 	if (ISSB16CLASS(sc)) {
1562 		irq = sbdsp_mix_read(sc, SBP_IRQ_STATUS);
1563 		if ((irq & (SBP_IRQ_DMA8 | SBP_IRQ_DMA16 | SBP_IRQ_MPU401))
1564 		    == 0) {
1565 			mutex_spin_exit(&sc->sc_intr_lock);
1566 			DPRINTF(("sbdsp_intr: Spurious interrupt 0x%x\n", irq));
1567 			return 0;
1568 		}
1569 	} else {
1570 		/* XXXX CHECK FOR INTERRUPT */
1571 		irq = SBP_IRQ_DMA8;
1572 	}
1573 
1574 	sc->sc_interrupts++;
1575 	delay(10);		/* XXX why? */
1576 
1577 	/* clear interrupt */
1578 	if (irq & SBP_IRQ_DMA8) {
1579 		bus_space_read_1(sc->sc_iot, sc->sc_ioh, SBP_DSP_IRQACK8);
1580 		if (sc->sc_intr8)
1581 			sc->sc_intr8(arg);
1582 	}
1583 	if (irq & SBP_IRQ_DMA16) {
1584 		bus_space_read_1(sc->sc_iot, sc->sc_ioh, SBP_DSP_IRQACK16);
1585 		if (sc->sc_intr16)
1586 			sc->sc_intr16(arg);
1587 	}
1588 #if NMPU > 0
1589 	if ((irq & SBP_IRQ_MPU401) && sc_mpu) {
1590 		mpu_intr(sc_mpu);
1591 	}
1592 #endif
1593 
1594 	mutex_spin_exit(&sc->sc_intr_lock);
1595 	return 1;
1596 }
1597 
1598 /* Like val & mask, but make sure the result is correctly rounded. */
1599 #define MAXVAL 256
1600 static int
1601 sbdsp_adjust(int val, int mask)
1602 {
1603 
1604 	val += (MAXVAL - mask) >> 1;
1605 	if (val >= MAXVAL)
1606 		val = MAXVAL-1;
1607 	return val & mask;
1608 }
1609 
1610 void
1611 sbdsp_set_mixer_gain(struct sbdsp_softc *sc, int port)
1612 {
1613 	int src, gain;
1614 
1615 	KASSERT(mutex_owned(&sc->sc_lock));
1616 	KASSERT(mutex_owned(&sc->sc_intr_lock));
1617 
1618 	switch(sc->sc_mixer_model) {
1619 	case SBM_NONE:
1620 		return;
1621 	case SBM_CT1335:
1622 		gain = SB_1335_GAIN(sc->gain[port][SB_LEFT]);
1623 		switch(port) {
1624 		case SB_MASTER_VOL:
1625 			src = SBP_1335_MASTER_VOL;
1626 			break;
1627 		case SB_MIDI_VOL:
1628 			src = SBP_1335_MIDI_VOL;
1629 			break;
1630 		case SB_CD_VOL:
1631 			src = SBP_1335_CD_VOL;
1632 			break;
1633 		case SB_VOICE_VOL:
1634 			src = SBP_1335_VOICE_VOL;
1635 			gain = SB_1335_MASTER_GAIN(sc->gain[port][SB_LEFT]);
1636 			break;
1637 		default:
1638 			return;
1639 		}
1640 		sbdsp_mix_write(sc, src, gain);
1641 		break;
1642 	case SBM_CT1345:
1643 		gain = SB_STEREO_GAIN(sc->gain[port][SB_LEFT],
1644 				      sc->gain[port][SB_RIGHT]);
1645 		switch (port) {
1646 		case SB_MIC_VOL:
1647 			src = SBP_MIC_VOL;
1648 			gain = SB_MIC_GAIN(sc->gain[port][SB_LEFT]);
1649 			break;
1650 		case SB_MASTER_VOL:
1651 			src = SBP_MASTER_VOL;
1652 			break;
1653 		case SB_LINE_IN_VOL:
1654 			src = SBP_LINE_VOL;
1655 			break;
1656 		case SB_VOICE_VOL:
1657 			src = SBP_VOICE_VOL;
1658 			break;
1659 		case SB_MIDI_VOL:
1660 			src = SBP_MIDI_VOL;
1661 			break;
1662 		case SB_CD_VOL:
1663 			src = SBP_CD_VOL;
1664 			break;
1665 		default:
1666 			return;
1667 		}
1668 		sbdsp_mix_write(sc, src, gain);
1669 		break;
1670 	case SBM_CT1XX5:
1671 	case SBM_CT1745:
1672 		switch (port) {
1673 		case SB_MIC_VOL:
1674 			src = SB16P_MIC_L;
1675 			break;
1676 		case SB_MASTER_VOL:
1677 			src = SB16P_MASTER_L;
1678 			break;
1679 		case SB_LINE_IN_VOL:
1680 			src = SB16P_LINE_L;
1681 			break;
1682 		case SB_VOICE_VOL:
1683 			src = SB16P_VOICE_L;
1684 			break;
1685 		case SB_MIDI_VOL:
1686 			src = SB16P_MIDI_L;
1687 			break;
1688 		case SB_CD_VOL:
1689 			src = SB16P_CD_L;
1690 			break;
1691 		case SB_INPUT_GAIN:
1692 			src = SB16P_INPUT_GAIN_L;
1693 			break;
1694 		case SB_OUTPUT_GAIN:
1695 			src = SB16P_OUTPUT_GAIN_L;
1696 			break;
1697 		case SB_TREBLE:
1698 			src = SB16P_TREBLE_L;
1699 			break;
1700 		case SB_BASS:
1701 			src = SB16P_BASS_L;
1702 			break;
1703 		case SB_PCSPEAKER:
1704 			sbdsp_mix_write(sc, SB16P_PCSPEAKER,
1705 			    sc->gain[port][SB_LEFT]);
1706 			return;
1707 		default:
1708 			return;
1709 		}
1710 		sbdsp_mix_write(sc, src, sc->gain[port][SB_LEFT]);
1711 		sbdsp_mix_write(sc, SB16P_L_TO_R(src),
1712 		    sc->gain[port][SB_RIGHT]);
1713 		break;
1714 	}
1715 }
1716 
1717 int
1718 sbdsp_mixer_set_port(void *addr, mixer_ctrl_t *cp)
1719 {
1720 	struct sbdsp_softc *sc;
1721 	int lgain, rgain;
1722 	int mask, bits;
1723 	int lmask, rmask, lbits, rbits;
1724 	int mute, swap;
1725 	int error;
1726 
1727 	sc = addr;
1728 
1729 	KASSERT(mutex_owned(&sc->sc_lock));
1730 
1731 	if (sc->sc_open == SB_OPEN_MIDI)
1732 		return EBUSY;
1733 
1734 	DPRINTF(("sbdsp_mixer_set_port: port=%d num_channels=%d\n", cp->dev,
1735 	    cp->un.value.num_channels));
1736 
1737 	if (sc->sc_mixer_model == SBM_NONE)
1738 		return EINVAL;
1739 
1740 	mutex_spin_enter(&sc->sc_intr_lock);
1741 	error = 0;
1742 
1743 	switch (cp->dev) {
1744 	case SB_TREBLE:
1745 	case SB_BASS:
1746 		if (sc->sc_mixer_model == SBM_CT1345 ||
1747 		    sc->sc_mixer_model == SBM_CT1XX5) {
1748 			if (cp->type != AUDIO_MIXER_ENUM) {
1749 				mutex_spin_exit(&sc->sc_intr_lock);
1750 				return EINVAL;
1751 			}
1752 			switch (cp->dev) {
1753 			case SB_TREBLE:
1754 				sbdsp_set_ifilter(addr,
1755 				    cp->un.ord ? SB_TREBLE : 0);
1756 				mutex_spin_exit(&sc->sc_intr_lock);
1757 				return 0;
1758 			case SB_BASS:
1759 				sbdsp_set_ifilter(addr,
1760 				    cp->un.ord ? SB_BASS : 0);
1761 				mutex_spin_exit(&sc->sc_intr_lock);
1762 				return 0;
1763 			}
1764 		}
1765 	case SB_PCSPEAKER:
1766 	case SB_INPUT_GAIN:
1767 	case SB_OUTPUT_GAIN:
1768 		if (!ISSBM1745(sc)) {
1769 			error = EINVAL;
1770 			break;
1771 		}
1772 	case SB_MIC_VOL:
1773 	case SB_LINE_IN_VOL:
1774 		if (sc->sc_mixer_model == SBM_CT1335) {
1775 			error = EINVAL;
1776 			break;
1777 		}
1778 	case SB_VOICE_VOL:
1779 	case SB_MIDI_VOL:
1780 	case SB_CD_VOL:
1781 	case SB_MASTER_VOL:
1782 		if (cp->type != AUDIO_MIXER_VALUE) {
1783 			error = EINVAL;
1784 			break;
1785 		}
1786 
1787 		/*
1788 		 * All the mixer ports are stereo except for the microphone.
1789 		 * If we get a single-channel gain value passed in, then we
1790 		 * duplicate it to both left and right channels.
1791 		 */
1792 
1793 		switch (cp->dev) {
1794 		case SB_MIC_VOL:
1795 			if (cp->un.value.num_channels != 1) {
1796 				error = EINVAL;
1797 				break;
1798 			}
1799 
1800 			lgain = rgain = SB_ADJUST_MIC_GAIN(sc,
1801 			    cp->un.value.level[AUDIO_MIXER_LEVEL_MONO]);
1802 			break;
1803 		case SB_PCSPEAKER:
1804 			if (cp->un.value.num_channels != 1) {
1805 				error = EINVAL;
1806 				break;
1807 			}
1808 			/* fall into */
1809 		case SB_INPUT_GAIN:
1810 		case SB_OUTPUT_GAIN:
1811 			lgain = rgain = SB_ADJUST_2_GAIN(sc,
1812 			    cp->un.value.level[AUDIO_MIXER_LEVEL_MONO]);
1813 			break;
1814 		default:
1815 			switch (cp->un.value.num_channels) {
1816 			case 1:
1817 				lgain = rgain = SB_ADJUST_GAIN(sc,
1818 				    cp->un.value.level[AUDIO_MIXER_LEVEL_MONO]);
1819 				break;
1820 			case 2:
1821 				if (sc->sc_mixer_model == SBM_CT1335) {
1822 					error = EINVAL;
1823 					break;
1824 				}
1825 				lgain = SB_ADJUST_GAIN(sc,
1826 				    cp->un.value.level[AUDIO_MIXER_LEVEL_LEFT]);
1827 				rgain = SB_ADJUST_GAIN(sc,
1828 				    cp->un.value.level[AUDIO_MIXER_LEVEL_RIGHT]);
1829 				break;
1830 			default:
1831 				error = EINVAL;
1832 				break;
1833 			}
1834 			break;
1835 		}
1836 		if (error == 0) {
1837 			sc->gain[cp->dev][SB_LEFT]  = lgain;
1838 			sc->gain[cp->dev][SB_RIGHT] = rgain;
1839 			sbdsp_set_mixer_gain(sc, cp->dev);
1840 		}
1841 		break;
1842 
1843 	case SB_RECORD_SOURCE:
1844 		if (ISSBM1745(sc)) {
1845 			if (cp->type != AUDIO_MIXER_SET)
1846 				error = EINVAL;
1847 			else
1848 				error = sbdsp_set_in_ports(sc, cp->un.mask);
1849 		} else {
1850 			if (cp->type != AUDIO_MIXER_ENUM)
1851 				error = EINVAL;
1852 			else {
1853 				sc->in_port = cp->un.ord;
1854 				error = sbdsp_set_in_ports(sc, 1 << cp->un.ord);
1855 			}
1856 		}
1857 		break;
1858 
1859 	case SB_AGC:
1860 		if (!ISSBM1745(sc) || cp->type != AUDIO_MIXER_ENUM)
1861 			error = EINVAL;
1862 		else
1863 			sbdsp_mix_write(sc, SB16P_AGC, cp->un.ord & 1);
1864 		break;
1865 
1866 	case SB_CD_OUT_MUTE:
1867 		mask = SB16P_SW_CD;
1868 		goto omute;
1869 	case SB_MIC_OUT_MUTE:
1870 		mask = SB16P_SW_MIC;
1871 		goto omute;
1872 	case SB_LINE_OUT_MUTE:
1873 		mask = SB16P_SW_LINE;
1874 	omute:
1875 		if (cp->type != AUDIO_MIXER_ENUM) {
1876 			error = EINVAL;
1877 			break;
1878 		}
1879 		bits = sbdsp_mix_read(sc, SB16P_OSWITCH);
1880 		sc->gain[cp->dev][SB_LR] = cp->un.ord != 0;
1881 		if (cp->un.ord)
1882 			bits = bits & ~mask;
1883 		else
1884 			bits = bits | mask;
1885 		sbdsp_mix_write(sc, SB16P_OSWITCH, bits);
1886 		break;
1887 
1888 	case SB_MIC_IN_MUTE:
1889 	case SB_MIC_SWAP:
1890 		lmask = rmask = SB16P_SW_MIC;
1891 		goto imute;
1892 	case SB_CD_IN_MUTE:
1893 	case SB_CD_SWAP:
1894 		lmask = SB16P_SW_CD_L;
1895 		rmask = SB16P_SW_CD_R;
1896 		goto imute;
1897 	case SB_LINE_IN_MUTE:
1898 	case SB_LINE_SWAP:
1899 		lmask = SB16P_SW_LINE_L;
1900 		rmask = SB16P_SW_LINE_R;
1901 		goto imute;
1902 	case SB_MIDI_IN_MUTE:
1903 	case SB_MIDI_SWAP:
1904 		lmask = SB16P_SW_MIDI_L;
1905 		rmask = SB16P_SW_MIDI_R;
1906 	imute:
1907 		if (cp->type != AUDIO_MIXER_ENUM) {
1908 			error = EINVAL;
1909 			break;
1910 		}
1911 		mask = lmask | rmask;
1912 		lbits = sbdsp_mix_read(sc, SB16P_ISWITCH_L) & ~mask;
1913 		rbits = sbdsp_mix_read(sc, SB16P_ISWITCH_R) & ~mask;
1914 		sc->gain[cp->dev][SB_LR] = cp->un.ord != 0;
1915 		if (SB_IS_IN_MUTE(cp->dev)) {
1916 			mute = cp->dev;
1917 			swap = mute - SB_CD_IN_MUTE + SB_CD_SWAP;
1918 		} else {
1919 			swap = cp->dev;
1920 			mute = swap + SB_CD_IN_MUTE - SB_CD_SWAP;
1921 		}
1922 		if (sc->gain[swap][SB_LR]) {
1923 			mask = lmask;
1924 			lmask = rmask;
1925 			rmask = mask;
1926 		}
1927 		if (!sc->gain[mute][SB_LR]) {
1928 			lbits = lbits | lmask;
1929 			rbits = rbits | rmask;
1930 		}
1931 		sbdsp_mix_write(sc, SB16P_ISWITCH_L, lbits);
1932 		sbdsp_mix_write(sc, SB16P_ISWITCH_L, rbits);
1933 		break;
1934 
1935 	default:
1936 		error = EINVAL;
1937 		break;
1938 	}
1939 
1940 	mutex_spin_exit(&sc->sc_intr_lock);
1941 	return error;
1942 }
1943 
1944 int
1945 sbdsp_mixer_get_port(void *addr, mixer_ctrl_t *cp)
1946 {
1947 	struct sbdsp_softc *sc;
1948 
1949 	sc = addr;
1950 
1951 	KASSERT(mutex_owned(&sc->sc_lock));
1952 
1953 	if (sc->sc_open == SB_OPEN_MIDI)
1954 		return EBUSY;
1955 
1956 	DPRINTF(("sbdsp_mixer_get_port: port=%d\n", cp->dev));
1957 
1958 	if (sc->sc_mixer_model == SBM_NONE)
1959 		return EINVAL;
1960 
1961 	mutex_spin_enter(&sc->sc_intr_lock);
1962 
1963 	switch (cp->dev) {
1964 	case SB_TREBLE:
1965 	case SB_BASS:
1966 		if (sc->sc_mixer_model == SBM_CT1345 ||
1967 		    sc->sc_mixer_model == SBM_CT1XX5) {
1968 			switch (cp->dev) {
1969 			case SB_TREBLE:
1970 				cp->un.ord = sbdsp_get_ifilter(addr) == SB_TREBLE;
1971 				mutex_spin_exit(&sc->sc_intr_lock);
1972 				return 0;
1973 			case SB_BASS:
1974 				cp->un.ord = sbdsp_get_ifilter(addr) == SB_BASS;
1975 				mutex_spin_exit(&sc->sc_intr_lock);
1976 				return 0;
1977 			}
1978 		}
1979 	case SB_PCSPEAKER:
1980 	case SB_INPUT_GAIN:
1981 	case SB_OUTPUT_GAIN:
1982 		if (!ISSBM1745(sc)) {
1983 			mutex_spin_exit(&sc->sc_intr_lock);
1984 			return EINVAL;
1985 		}
1986 	case SB_MIC_VOL:
1987 	case SB_LINE_IN_VOL:
1988 		if (sc->sc_mixer_model == SBM_CT1335) {
1989 			mutex_spin_exit(&sc->sc_intr_lock);
1990 			return EINVAL;
1991 		}
1992 	case SB_VOICE_VOL:
1993 	case SB_MIDI_VOL:
1994 	case SB_CD_VOL:
1995 	case SB_MASTER_VOL:
1996 		switch (cp->dev) {
1997 		case SB_MIC_VOL:
1998 		case SB_PCSPEAKER:
1999 			if (cp->un.value.num_channels != 1) {
2000 				mutex_spin_exit(&sc->sc_intr_lock);
2001 				return EINVAL;
2002 			}
2003 			/* fall into */
2004 		default:
2005 			switch (cp->un.value.num_channels) {
2006 			case 1:
2007 				cp->un.value.level[AUDIO_MIXER_LEVEL_MONO] =
2008 				    sc->gain[cp->dev][SB_LEFT];
2009 				break;
2010 			case 2:
2011 				cp->un.value.level[AUDIO_MIXER_LEVEL_LEFT] =
2012 				    sc->gain[cp->dev][SB_LEFT];
2013 				cp->un.value.level[AUDIO_MIXER_LEVEL_RIGHT] =
2014 				    sc->gain[cp->dev][SB_RIGHT];
2015 				break;
2016 			default:
2017 				mutex_spin_exit(&sc->sc_intr_lock);
2018 				return EINVAL;
2019 			}
2020 			break;
2021 		}
2022 		break;
2023 
2024 	case SB_RECORD_SOURCE:
2025 		if (ISSBM1745(sc))
2026 			cp->un.mask = sc->in_mask;
2027 		else
2028 			cp->un.ord = sc->in_port;
2029 		break;
2030 
2031 	case SB_AGC:
2032 		if (!ISSBM1745(sc)) {
2033 			mutex_spin_exit(&sc->sc_intr_lock);
2034 			return EINVAL;
2035 		}
2036 		cp->un.ord = sbdsp_mix_read(sc, SB16P_AGC);
2037 		break;
2038 
2039 	case SB_CD_IN_MUTE:
2040 	case SB_MIC_IN_MUTE:
2041 	case SB_LINE_IN_MUTE:
2042 	case SB_MIDI_IN_MUTE:
2043 	case SB_CD_SWAP:
2044 	case SB_MIC_SWAP:
2045 	case SB_LINE_SWAP:
2046 	case SB_MIDI_SWAP:
2047 	case SB_CD_OUT_MUTE:
2048 	case SB_MIC_OUT_MUTE:
2049 	case SB_LINE_OUT_MUTE:
2050 		cp->un.ord = sc->gain[cp->dev][SB_LR];
2051 		break;
2052 
2053 	default:
2054 		mutex_spin_exit(&sc->sc_intr_lock);
2055 		return EINVAL;
2056 	}
2057 
2058 	mutex_spin_exit(&sc->sc_intr_lock);
2059 
2060 	return 0;
2061 }
2062 
2063 int
2064 sbdsp_mixer_query_devinfo(void *addr, mixer_devinfo_t *dip)
2065 {
2066 	struct sbdsp_softc *sc = addr;
2067 	int chan, class, is1745;
2068 
2069 	sc = addr;
2070 	DPRINTF(("sbdsp_mixer_query_devinfo: model=%d index=%d\n",
2071 		 sc->sc_mixer_model, dip->index));
2072 
2073 	KASSERT(mutex_owned(&sc->sc_lock));
2074 
2075 	if (sc->sc_mixer_model == SBM_NONE)
2076 		return ENXIO;
2077 
2078 	chan = sc->sc_mixer_model == SBM_CT1335 ? 1 : 2;
2079 	is1745 = ISSBM1745(sc);
2080 	class = is1745 ? SB_INPUT_CLASS : SB_OUTPUT_CLASS;
2081 
2082 	switch (dip->index) {
2083 	case SB_MASTER_VOL:
2084 		dip->type = AUDIO_MIXER_VALUE;
2085 		dip->mixer_class = SB_OUTPUT_CLASS;
2086 		dip->prev = dip->next = AUDIO_MIXER_LAST;
2087 		strcpy(dip->label.name, AudioNmaster);
2088 		dip->un.v.num_channels = chan;
2089 		strcpy(dip->un.v.units.name, AudioNvolume);
2090 		return 0;
2091 	case SB_MIDI_VOL:
2092 		dip->type = AUDIO_MIXER_VALUE;
2093 		dip->mixer_class = class;
2094 		dip->prev = AUDIO_MIXER_LAST;
2095 		dip->next = is1745 ? SB_MIDI_IN_MUTE : AUDIO_MIXER_LAST;
2096 		strcpy(dip->label.name, AudioNfmsynth);
2097 		dip->un.v.num_channels = chan;
2098 		strcpy(dip->un.v.units.name, AudioNvolume);
2099 		return 0;
2100 	case SB_CD_VOL:
2101 		dip->type = AUDIO_MIXER_VALUE;
2102 		dip->mixer_class = class;
2103 		dip->prev = AUDIO_MIXER_LAST;
2104 		dip->next = is1745 ? SB_CD_IN_MUTE : AUDIO_MIXER_LAST;
2105 		strcpy(dip->label.name, AudioNcd);
2106 		dip->un.v.num_channels = chan;
2107 		strcpy(dip->un.v.units.name, AudioNvolume);
2108 		return 0;
2109 	case SB_VOICE_VOL:
2110 		dip->type = AUDIO_MIXER_VALUE;
2111 		dip->mixer_class = class;
2112 		dip->prev = AUDIO_MIXER_LAST;
2113 		dip->next = AUDIO_MIXER_LAST;
2114 		strcpy(dip->label.name, AudioNdac);
2115 		dip->un.v.num_channels = chan;
2116 		strcpy(dip->un.v.units.name, AudioNvolume);
2117 		return 0;
2118 	case SB_OUTPUT_CLASS:
2119 		dip->type = AUDIO_MIXER_CLASS;
2120 		dip->mixer_class = SB_OUTPUT_CLASS;
2121 		dip->next = dip->prev = AUDIO_MIXER_LAST;
2122 		strcpy(dip->label.name, AudioCoutputs);
2123 		return 0;
2124 	}
2125 
2126 	if (sc->sc_mixer_model == SBM_CT1335)
2127 		return ENXIO;
2128 
2129 	switch (dip->index) {
2130 	case SB_MIC_VOL:
2131 		dip->type = AUDIO_MIXER_VALUE;
2132 		dip->mixer_class = class;
2133 		dip->prev = AUDIO_MIXER_LAST;
2134 		dip->next = is1745 ? SB_MIC_IN_MUTE : AUDIO_MIXER_LAST;
2135 		strcpy(dip->label.name, AudioNmicrophone);
2136 		dip->un.v.num_channels = 1;
2137 		strcpy(dip->un.v.units.name, AudioNvolume);
2138 		return 0;
2139 
2140 	case SB_LINE_IN_VOL:
2141 		dip->type = AUDIO_MIXER_VALUE;
2142 		dip->mixer_class = class;
2143 		dip->prev = AUDIO_MIXER_LAST;
2144 		dip->next = is1745 ? SB_LINE_IN_MUTE : AUDIO_MIXER_LAST;
2145 		strcpy(dip->label.name, AudioNline);
2146 		dip->un.v.num_channels = 2;
2147 		strcpy(dip->un.v.units.name, AudioNvolume);
2148 		return 0;
2149 
2150 	case SB_RECORD_SOURCE:
2151 		dip->mixer_class = SB_RECORD_CLASS;
2152 		dip->prev = dip->next = AUDIO_MIXER_LAST;
2153 		strcpy(dip->label.name, AudioNsource);
2154 		if (ISSBM1745(sc)) {
2155 			dip->type = AUDIO_MIXER_SET;
2156 			dip->un.s.num_mem = 4;
2157 			strcpy(dip->un.s.member[0].label.name, AudioNmicrophone);
2158 			dip->un.s.member[0].mask = 1 << SB_MIC_VOL;
2159 			strcpy(dip->un.s.member[1].label.name, AudioNcd);
2160 			dip->un.s.member[1].mask = 1 << SB_CD_VOL;
2161 			strcpy(dip->un.s.member[2].label.name, AudioNline);
2162 			dip->un.s.member[2].mask = 1 << SB_LINE_IN_VOL;
2163 			strcpy(dip->un.s.member[3].label.name, AudioNfmsynth);
2164 			dip->un.s.member[3].mask = 1 << SB_MIDI_VOL;
2165 		} else {
2166 			dip->type = AUDIO_MIXER_ENUM;
2167 			dip->un.e.num_mem = 3;
2168 			strcpy(dip->un.e.member[0].label.name, AudioNmicrophone);
2169 			dip->un.e.member[0].ord = SB_MIC_VOL;
2170 			strcpy(dip->un.e.member[1].label.name, AudioNcd);
2171 			dip->un.e.member[1].ord = SB_CD_VOL;
2172 			strcpy(dip->un.e.member[2].label.name, AudioNline);
2173 			dip->un.e.member[2].ord = SB_LINE_IN_VOL;
2174 		}
2175 		return 0;
2176 
2177 	case SB_BASS:
2178 		dip->prev = dip->next = AUDIO_MIXER_LAST;
2179 		strcpy(dip->label.name, AudioNbass);
2180 		if (sc->sc_mixer_model == SBM_CT1745) {
2181 			dip->type = AUDIO_MIXER_VALUE;
2182 			dip->mixer_class = SB_EQUALIZATION_CLASS;
2183 			dip->un.v.num_channels = 2;
2184 			strcpy(dip->un.v.units.name, AudioNbass);
2185 		} else {
2186 			dip->type = AUDIO_MIXER_ENUM;
2187 			dip->mixer_class = SB_INPUT_CLASS;
2188 			dip->un.e.num_mem = 2;
2189 			strcpy(dip->un.e.member[0].label.name, AudioNoff);
2190 			dip->un.e.member[0].ord = 0;
2191 			strcpy(dip->un.e.member[1].label.name, AudioNon);
2192 			dip->un.e.member[1].ord = 1;
2193 		}
2194 		return 0;
2195 
2196 	case SB_TREBLE:
2197 		dip->prev = dip->next = AUDIO_MIXER_LAST;
2198 		strcpy(dip->label.name, AudioNtreble);
2199 		if (sc->sc_mixer_model == SBM_CT1745) {
2200 			dip->type = AUDIO_MIXER_VALUE;
2201 			dip->mixer_class = SB_EQUALIZATION_CLASS;
2202 			dip->un.v.num_channels = 2;
2203 			strcpy(dip->un.v.units.name, AudioNtreble);
2204 		} else {
2205 			dip->type = AUDIO_MIXER_ENUM;
2206 			dip->mixer_class = SB_INPUT_CLASS;
2207 			dip->un.e.num_mem = 2;
2208 			strcpy(dip->un.e.member[0].label.name, AudioNoff);
2209 			dip->un.e.member[0].ord = 0;
2210 			strcpy(dip->un.e.member[1].label.name, AudioNon);
2211 			dip->un.e.member[1].ord = 1;
2212 		}
2213 		return 0;
2214 
2215 	case SB_RECORD_CLASS:			/* record source class */
2216 		dip->type = AUDIO_MIXER_CLASS;
2217 		dip->mixer_class = SB_RECORD_CLASS;
2218 		dip->next = dip->prev = AUDIO_MIXER_LAST;
2219 		strcpy(dip->label.name, AudioCrecord);
2220 		return 0;
2221 
2222 	case SB_INPUT_CLASS:
2223 		dip->type = AUDIO_MIXER_CLASS;
2224 		dip->mixer_class = SB_INPUT_CLASS;
2225 		dip->next = dip->prev = AUDIO_MIXER_LAST;
2226 		strcpy(dip->label.name, AudioCinputs);
2227 		return 0;
2228 
2229 	}
2230 
2231 	if (sc->sc_mixer_model == SBM_CT1345)
2232 		return ENXIO;
2233 
2234 	switch(dip->index) {
2235 	case SB_PCSPEAKER:
2236 		dip->type = AUDIO_MIXER_VALUE;
2237 		dip->mixer_class = SB_INPUT_CLASS;
2238 		dip->prev = dip->next = AUDIO_MIXER_LAST;
2239 		strcpy(dip->label.name, "pc_speaker");
2240 		dip->un.v.num_channels = 1;
2241 		strcpy(dip->un.v.units.name, AudioNvolume);
2242 		return 0;
2243 
2244 	case SB_INPUT_GAIN:
2245 		dip->type = AUDIO_MIXER_VALUE;
2246 		dip->mixer_class = SB_INPUT_CLASS;
2247 		dip->prev = dip->next = AUDIO_MIXER_LAST;
2248 		strcpy(dip->label.name, AudioNinput);
2249 		dip->un.v.num_channels = 2;
2250 		strcpy(dip->un.v.units.name, AudioNvolume);
2251 		return 0;
2252 
2253 	case SB_OUTPUT_GAIN:
2254 		dip->type = AUDIO_MIXER_VALUE;
2255 		dip->mixer_class = SB_OUTPUT_CLASS;
2256 		dip->prev = dip->next = AUDIO_MIXER_LAST;
2257 		strcpy(dip->label.name, AudioNoutput);
2258 		dip->un.v.num_channels = 2;
2259 		strcpy(dip->un.v.units.name, AudioNvolume);
2260 		return 0;
2261 
2262 	case SB_AGC:
2263 		dip->type = AUDIO_MIXER_ENUM;
2264 		dip->mixer_class = SB_INPUT_CLASS;
2265 		dip->prev = dip->next = AUDIO_MIXER_LAST;
2266 		strcpy(dip->label.name, "agc");
2267 		dip->un.e.num_mem = 2;
2268 		strcpy(dip->un.e.member[0].label.name, AudioNoff);
2269 		dip->un.e.member[0].ord = 0;
2270 		strcpy(dip->un.e.member[1].label.name, AudioNon);
2271 		dip->un.e.member[1].ord = 1;
2272 		return 0;
2273 
2274 	case SB_EQUALIZATION_CLASS:
2275 		dip->type = AUDIO_MIXER_CLASS;
2276 		dip->mixer_class = SB_EQUALIZATION_CLASS;
2277 		dip->next = dip->prev = AUDIO_MIXER_LAST;
2278 		strcpy(dip->label.name, AudioCequalization);
2279 		return 0;
2280 
2281 	case SB_CD_IN_MUTE:
2282 		dip->prev = SB_CD_VOL;
2283 		dip->next = SB_CD_SWAP;
2284 		dip->mixer_class = SB_INPUT_CLASS;
2285 		goto mute;
2286 
2287 	case SB_MIC_IN_MUTE:
2288 		dip->prev = SB_MIC_VOL;
2289 		dip->next = SB_MIC_SWAP;
2290 		dip->mixer_class = SB_INPUT_CLASS;
2291 		goto mute;
2292 
2293 	case SB_LINE_IN_MUTE:
2294 		dip->prev = SB_LINE_IN_VOL;
2295 		dip->next = SB_LINE_SWAP;
2296 		dip->mixer_class = SB_INPUT_CLASS;
2297 		goto mute;
2298 
2299 	case SB_MIDI_IN_MUTE:
2300 		dip->prev = SB_MIDI_VOL;
2301 		dip->next = SB_MIDI_SWAP;
2302 		dip->mixer_class = SB_INPUT_CLASS;
2303 		goto mute;
2304 
2305 	case SB_CD_SWAP:
2306 		dip->prev = SB_CD_IN_MUTE;
2307 		dip->next = SB_CD_OUT_MUTE;
2308 		goto swap;
2309 
2310 	case SB_MIC_SWAP:
2311 		dip->prev = SB_MIC_IN_MUTE;
2312 		dip->next = SB_MIC_OUT_MUTE;
2313 		goto swap;
2314 
2315 	case SB_LINE_SWAP:
2316 		dip->prev = SB_LINE_IN_MUTE;
2317 		dip->next = SB_LINE_OUT_MUTE;
2318 		goto swap;
2319 
2320 	case SB_MIDI_SWAP:
2321 		dip->prev = SB_MIDI_IN_MUTE;
2322 		dip->next = AUDIO_MIXER_LAST;
2323 	swap:
2324 		dip->mixer_class = SB_INPUT_CLASS;
2325 		strcpy(dip->label.name, AudioNswap);
2326 		goto mute1;
2327 
2328 	case SB_CD_OUT_MUTE:
2329 		dip->prev = SB_CD_SWAP;
2330 		dip->next = AUDIO_MIXER_LAST;
2331 		dip->mixer_class = SB_OUTPUT_CLASS;
2332 		goto mute;
2333 
2334 	case SB_MIC_OUT_MUTE:
2335 		dip->prev = SB_MIC_SWAP;
2336 		dip->next = AUDIO_MIXER_LAST;
2337 		dip->mixer_class = SB_OUTPUT_CLASS;
2338 		goto mute;
2339 
2340 	case SB_LINE_OUT_MUTE:
2341 		dip->prev = SB_LINE_SWAP;
2342 		dip->next = AUDIO_MIXER_LAST;
2343 		dip->mixer_class = SB_OUTPUT_CLASS;
2344 	mute:
2345 		strcpy(dip->label.name, AudioNmute);
2346 	mute1:
2347 		dip->type = AUDIO_MIXER_ENUM;
2348 		dip->un.e.num_mem = 2;
2349 		strcpy(dip->un.e.member[0].label.name, AudioNoff);
2350 		dip->un.e.member[0].ord = 0;
2351 		strcpy(dip->un.e.member[1].label.name, AudioNon);
2352 		dip->un.e.member[1].ord = 1;
2353 		return 0;
2354 
2355 	}
2356 
2357 	return ENXIO;
2358 }
2359 
2360 void *
2361 sb_malloc(void *addr, int direction, size_t size)
2362 {
2363 	struct sbdsp_softc *sc;
2364 	int drq;
2365 
2366 	sc = addr;
2367 	if (sc->sc_drq8 != -1)
2368 		drq = sc->sc_drq8;
2369 	else
2370 		drq = sc->sc_drq16;
2371 	return isa_malloc(sc->sc_ic, drq, size, M_DEVBUF, M_WAITOK);
2372 }
2373 
2374 void
2375 sb_free(void *addr, void *ptr, size_t size)
2376 {
2377 
2378 	isa_free(ptr, M_DEVBUF);
2379 }
2380 
2381 size_t
2382 sb_round_buffersize(void *addr, int direction, size_t size)
2383 {
2384 	struct sbdsp_softc *sc;
2385 	bus_size_t maxsize;
2386 
2387 	sc = addr;
2388 	if (sc->sc_drq8 != -1)
2389 		maxsize = sc->sc_drq8_maxsize;
2390 	else
2391 		maxsize = sc->sc_drq16_maxsize;
2392 
2393 	if (size > maxsize)
2394 		size = maxsize;
2395 	return size;
2396 }
2397 
2398 paddr_t
2399 sb_mappage(void *addr, void *mem, off_t off, int prot)
2400 {
2401 
2402 	return isa_mappage(mem, off, prot);
2403 }
2404 
2405 int
2406 sbdsp_get_props(void *addr)
2407 {
2408 	struct sbdsp_softc *sc;
2409 
2410 	sc = addr;
2411 	return AUDIO_PROP_MMAP | AUDIO_PROP_INDEPENDENT |
2412 	       (sc->sc_fullduplex ? AUDIO_PROP_FULLDUPLEX : 0);
2413 }
2414 
2415 void
2416 sbdsp_get_locks(void *addr, kmutex_t **intr, kmutex_t **proc)
2417 {
2418 	struct sbdsp_softc *sc;
2419 
2420 	sc = addr;
2421 	*intr = &sc->sc_intr_lock;
2422 	*proc = &sc->sc_lock;
2423 }
2424 
2425 #if NMPU > 0
2426 /*
2427  * MIDI related routines.
2428  */
2429 
2430 int
2431 sbdsp_midi_open(void *addr, int flags, void (*iintr)(void *, int),
2432     void (*ointr)(void *), void *arg)
2433 {
2434 	struct sbdsp_softc *sc;
2435 
2436 	sc = addr;
2437 	DPRINTF(("sbdsp_midi_open: sc=%p\n", sc));
2438 
2439 	if (sc->sc_open != SB_CLOSED)
2440 		return EBUSY;
2441 	if (sbdsp_reset(sc) != 0)
2442 		return EIO;
2443 
2444 	sc->sc_open = SB_OPEN_MIDI;
2445 
2446 	if (sc->sc_model >= SB_20)
2447 		if (sbdsp_wdsp(sc, SB_MIDI_UART_INTR)) /* enter UART mode */
2448 			return EIO;
2449 
2450 	sc->sc_intr8 = sbdsp_midi_intr;
2451 	sc->sc_intrm = iintr;
2452 	sc->sc_argm = arg;
2453 
2454 	return 0;
2455 }
2456 
2457 void
2458 sbdsp_midi_close(void *addr)
2459 {
2460 	struct sbdsp_softc *sc;
2461 
2462 	sc = addr;
2463 	DPRINTF(("sbdsp_midi_close: sc=%p\n", sc));
2464 
2465 	if (sc->sc_model >= SB_20)
2466 		sbdsp_reset(sc); /* exit UART mode */
2467 
2468 	sc->sc_intrm = 0;
2469 	sc->sc_open = SB_CLOSED;
2470 }
2471 
2472 int
2473 sbdsp_midi_output(void *addr, int d)
2474 {
2475 	struct sbdsp_softc *sc;
2476 
2477 	sc = addr;
2478 	if (sc->sc_model < SB_20 && sbdsp_wdsp(sc, SB_MIDI_WRITE))
2479 		return EIO;
2480 	if (sbdsp_wdsp(sc, d))
2481 		return EIO;
2482 	return 0;
2483 }
2484 
2485 void
2486 sbdsp_midi_getinfo(void *addr, struct midi_info *mi)
2487 {
2488 	struct sbdsp_softc *sc;
2489 
2490 	sc = addr;
2491 	mi->name = sc->sc_model < SB_20 ? "SB MIDI cmd" : "SB MIDI UART";
2492 	mi->props = MIDI_PROP_CAN_INPUT;
2493 }
2494 
2495 int
2496 sbdsp_midi_intr(void *addr)
2497 {
2498 	struct sbdsp_softc *sc;
2499 
2500 	sc = addr;
2501 
2502 	KASSERT(mutex_owned(&sc->sc_intr_lock));
2503 
2504 	sc->sc_intrm(sc->sc_argm, sbdsp_rdsp(sc));
2505 	return (0);
2506 }
2507 #endif
2508