sb16.c revision 127135 
1/*
2 * Copyright (c) 1999 Cameron Grant <cg@freebsd.org>
3 * Copyright 1997,1998 Luigi Rizzo.
4 *
5 * Derived from files in the Voxware 3.5 distribution,
6 * Copyright by Hannu Savolainen 1994, under the same copyright
7 * conditions.
8 * All rights reserved.
9 *
10 * Redistribution and use in source and binary forms, with or without
11 * modification, are permitted provided that the following conditions
12 * are met:
13 * 1. Redistributions of source code must retain the above copyright
14 *    notice, this list of conditions and the following disclaimer.
15 * 2. Redistributions in binary form must reproduce the above copyright
16 *    notice, this list of conditions and the following disclaimer in the
17 *    documentation and/or other materials provided with the distribution.
18 *
19 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
20 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
21 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
22 * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
23 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
24 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
25 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
26 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
27 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
28 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
29 * SUCH DAMAGE.
30 */
31
32#include <dev/sound/pcm/sound.h>
33
34#include  <dev/sound/isa/sb.h>
35#include  <dev/sound/chip.h>
36
37#include <isa/isavar.h>
38
39#include "mixer_if.h"
40
41SND_DECLARE_FILE("$FreeBSD: head/sys/dev/sound/isa/sb16.c 127135 2004-03-17 17:50:55Z njl $");
42
43#define SB16_BUFFSIZE	4096
44#define PLAIN_SB16(x) ((((x)->bd_flags) & (BD_F_SB16|BD_F_SB16X)) == BD_F_SB16)
45
46static u_int32_t sb16_fmt8[] = {
47	AFMT_U8,
48	AFMT_STEREO | AFMT_U8,
49	0
50};
51static struct pcmchan_caps sb16_caps8 = {5000, 45000, sb16_fmt8, 0};
52
53static u_int32_t sb16_fmt16[] = {
54	AFMT_S16_LE,
55	AFMT_STEREO | AFMT_S16_LE,
56	0
57};
58static struct pcmchan_caps sb16_caps16 = {5000, 45000, sb16_fmt16, 0};
59
60static u_int32_t sb16x_fmt[] = {
61	AFMT_U8,
62	AFMT_STEREO | AFMT_U8,
63	AFMT_S16_LE,
64	AFMT_STEREO | AFMT_S16_LE,
65	0
66};
67static struct pcmchan_caps sb16x_caps = {5000, 49000, sb16x_fmt, 0};
68
69struct sb_info;
70
71struct sb_chinfo {
72	struct sb_info *parent;
73	struct pcm_channel *channel;
74	struct snd_dbuf *buffer;
75	int dir, run, dch;
76	u_int32_t fmt, spd, blksz;
77};
78
79struct sb_info {
80    	struct resource *io_base;	/* I/O address for the board */
81    	struct resource *irq;
82   	struct resource *drq1;
83    	struct resource *drq2;
84    	void *ih;
85    	bus_dma_tag_t parent_dmat;
86
87	unsigned int bufsize;
88    	int bd_id;
89    	u_long bd_flags;       /* board-specific flags */
90	int prio, prio16;
91    	struct sb_chinfo pch, rch;
92	device_t parent_dev;
93};
94
95#if 0
96static void sb_lock(struct sb_info *sb);
97static void sb_unlock(struct sb_info *sb);
98static int sb_rd(struct sb_info *sb, int reg);
99static void sb_wr(struct sb_info *sb, int reg, u_int8_t val);
100static int sb_cmd(struct sb_info *sb, u_char val);
101/* static int sb_cmd1(struct sb_info *sb, u_char cmd, int val); */
102static int sb_cmd2(struct sb_info *sb, u_char cmd, int val);
103static u_int sb_get_byte(struct sb_info *sb);
104static void sb_setmixer(struct sb_info *sb, u_int port, u_int value);
105static int sb_getmixer(struct sb_info *sb, u_int port);
106static int sb_reset_dsp(struct sb_info *sb);
107
108static void sb_intr(void *arg);
109#endif
110
111/*
112 * Common code for the midi and pcm functions
113 *
114 * sb_cmd write a single byte to the CMD port.
115 * sb_cmd1 write a CMD + 1 byte arg
116 * sb_cmd2 write a CMD + 2 byte arg
117 * sb_get_byte returns a single byte from the DSP data port
118 */
119
120static void
121sb_lock(struct sb_info *sb) {
122
123	sbc_lock(device_get_softc(sb->parent_dev));
124}
125
126static void
127sb_unlock(struct sb_info *sb) {
128
129	sbc_unlock(device_get_softc(sb->parent_dev));
130}
131
132static int
133port_rd(struct resource *port, int off)
134{
135	return bus_space_read_1(rman_get_bustag(port), rman_get_bushandle(port), off);
136}
137
138static void
139port_wr(struct resource *port, int off, u_int8_t data)
140{
141	bus_space_write_1(rman_get_bustag(port), rman_get_bushandle(port), off, data);
142}
143
144static int
145sb_rd(struct sb_info *sb, int reg)
146{
147	return port_rd(sb->io_base, reg);
148}
149
150static void
151sb_wr(struct sb_info *sb, int reg, u_int8_t val)
152{
153	port_wr(sb->io_base, reg, val);
154}
155
156static int
157sb_dspwr(struct sb_info *sb, u_char val)
158{
159    	int  i;
160
161    	for (i = 0; i < 1000; i++) {
162		if ((sb_rd(sb, SBDSP_STATUS) & 0x80))
163	    		DELAY((i > 100)? 1000 : 10);
164	    	else {
165			sb_wr(sb, SBDSP_CMD, val);
166			return 1;
167		}
168    	}
169#if __FreeBSD_version > 500000
170	if (curthread->td_intr_nesting_level == 0)
171		printf("sb_dspwr(0x%02x) timed out.\n", val);
172#endif
173    	return 0;
174}
175
176static int
177sb_cmd(struct sb_info *sb, u_char val)
178{
179#if 0
180	printf("sb_cmd: %x\n", val);
181#endif
182    	return sb_dspwr(sb, val);
183}
184
185/*
186static int
187sb_cmd1(struct sb_info *sb, u_char cmd, int val)
188{
189#if 0
190    	printf("sb_cmd1: %x, %x\n", cmd, val);
191#endif
192    	if (sb_dspwr(sb, cmd)) {
193		return sb_dspwr(sb, val & 0xff);
194    	} else return 0;
195}
196*/
197
198static int
199sb_cmd2(struct sb_info *sb, u_char cmd, int val)
200{
201	int r;
202
203#if 0
204    	printf("sb_cmd2: %x, %x\n", cmd, val);
205#endif
206	sb_lock(sb);
207	r = 0;
208    	if (sb_dspwr(sb, cmd)) {
209		if (sb_dspwr(sb, val & 0xff)) {
210			if (sb_dspwr(sb, (val >> 8) & 0xff)) {
211				r = 1;
212			}
213		}
214    	}
215	sb_unlock(sb);
216
217	return r;
218}
219
220/*
221 * in the SB, there is a set of indirect "mixer" registers with
222 * address at offset 4, data at offset 5
223 */
224static void
225sb_setmixer(struct sb_info *sb, u_int port, u_int value)
226{
227	sb_lock(sb);
228    	sb_wr(sb, SB_MIX_ADDR, (u_char) (port & 0xff)); /* Select register */
229    	DELAY(10);
230    	sb_wr(sb, SB_MIX_DATA, (u_char) (value & 0xff));
231    	DELAY(10);
232	sb_unlock(sb);
233}
234
235static int
236sb_getmixer(struct sb_info *sb, u_int port)
237{
238    	int val;
239
240	sb_lock(sb);
241    	sb_wr(sb, SB_MIX_ADDR, (u_char) (port & 0xff)); /* Select register */
242    	DELAY(10);
243    	val = sb_rd(sb, SB_MIX_DATA);
244    	DELAY(10);
245	sb_unlock(sb);
246
247    	return val;
248}
249
250static u_int
251sb_get_byte(struct sb_info *sb)
252{
253    	int i;
254
255    	for (i = 1000; i > 0; i--) {
256		if (sb_rd(sb, DSP_DATA_AVAIL) & 0x80)
257			return sb_rd(sb, DSP_READ);
258		else
259			DELAY(20);
260    	}
261    	return 0xffff;
262}
263
264static int
265sb_reset_dsp(struct sb_info *sb)
266{
267	u_char b;
268
269	sb_lock(sb);
270    	sb_wr(sb, SBDSP_RST, 3);
271    	DELAY(100);
272    	sb_wr(sb, SBDSP_RST, 0);
273	b = sb_get_byte(sb);
274	sb_unlock(sb);
275    	if (b != 0xAA) {
276        	DEB(printf("sb_reset_dsp 0x%lx failed\n",
277			   rman_get_start(sb->io_base)));
278		return ENXIO;	/* Sorry */
279    	}
280    	return 0;
281}
282
283/************************************************************/
284
285struct sb16_mixent {
286	int reg;
287	int bits;
288	int ofs;
289	int stereo;
290};
291
292static const struct sb16_mixent sb16_mixtab[32] = {
293    	[SOUND_MIXER_VOLUME]	= { 0x30, 5, 3, 1 },
294    	[SOUND_MIXER_PCM]	= { 0x32, 5, 3, 1 },
295    	[SOUND_MIXER_SYNTH]	= { 0x34, 5, 3, 1 },
296    	[SOUND_MIXER_CD]	= { 0x36, 5, 3, 1 },
297    	[SOUND_MIXER_LINE]	= { 0x38, 5, 3, 1 },
298    	[SOUND_MIXER_MIC]	= { 0x3a, 5, 3, 0 },
299       	[SOUND_MIXER_SPEAKER]	= { 0x3b, 5, 3, 0 },
300    	[SOUND_MIXER_IGAIN]	= { 0x3f, 2, 6, 1 },
301    	[SOUND_MIXER_OGAIN]	= { 0x41, 2, 6, 1 },
302	[SOUND_MIXER_TREBLE]	= { 0x44, 4, 4, 1 },
303    	[SOUND_MIXER_BASS]	= { 0x46, 4, 4, 1 },
304	[SOUND_MIXER_LINE1]	= { 0x52, 5, 3, 1 }
305};
306
307static int
308sb16mix_init(struct snd_mixer *m)
309{
310    	struct sb_info *sb = mix_getdevinfo(m);
311
312	mix_setdevs(m, SOUND_MASK_SYNTH | SOUND_MASK_PCM | SOUND_MASK_SPEAKER |
313     		       SOUND_MASK_LINE | SOUND_MASK_MIC | SOUND_MASK_CD |
314     		       SOUND_MASK_IGAIN | SOUND_MASK_OGAIN | SOUND_MASK_LINE1 |
315     		       SOUND_MASK_VOLUME | SOUND_MASK_BASS | SOUND_MASK_TREBLE);
316
317	mix_setrecdevs(m, SOUND_MASK_SYNTH | SOUND_MASK_LINE |
318			  SOUND_MASK_LINE1 | SOUND_MASK_MIC | SOUND_MASK_CD);
319
320	sb_setmixer(sb, 0x3c, 0x1f); /* make all output active */
321
322	sb_setmixer(sb, 0x3d, 0); /* make all inputs-l off */
323	sb_setmixer(sb, 0x3e, 0); /* make all inputs-r off */
324
325	return 0;
326}
327
328static int
329sb16mix_set(struct snd_mixer *m, unsigned dev, unsigned left, unsigned right)
330{
331    	struct sb_info *sb = mix_getdevinfo(m);
332    	const struct sb16_mixent *e;
333    	int max;
334
335	e = &sb16_mixtab[dev];
336	max = (1 << e->bits) - 1;
337
338	left = (left * max) / 100;
339	right = (right * max) / 100;
340
341	sb_setmixer(sb, e->reg, left << e->ofs);
342	if (e->stereo)
343		sb_setmixer(sb, e->reg + 1, right << e->ofs);
344	else
345		right = left;
346
347	left = (left * 100) / max;
348	right = (right * 100) / max;
349
350    	return left | (right << 8);
351}
352
353static int
354sb16mix_setrecsrc(struct snd_mixer *m, u_int32_t src)
355{
356    	struct sb_info *sb = mix_getdevinfo(m);
357    	u_char recdev;
358
359	recdev = 0;
360	if (src & SOUND_MASK_MIC)
361		recdev |= 0x01; /* mono mic */
362
363	if (src & SOUND_MASK_CD)
364		recdev |= 0x06; /* l+r cd */
365
366	if (src & SOUND_MASK_LINE)
367		recdev |= 0x18; /* l+r line */
368
369	if (src & SOUND_MASK_SYNTH)
370		recdev |= 0x60; /* l+r midi */
371
372	sb_setmixer(sb, SB16_IMASK_L, recdev);
373	sb_setmixer(sb, SB16_IMASK_R, recdev);
374
375	/* Switch on/off FM tuner source */
376	if (src & SOUND_MASK_LINE1)
377		sb_setmixer(sb, 0x4a, 0x0c);
378	else
379		sb_setmixer(sb, 0x4a, 0x00);
380
381	/*
382	 * since the same volume controls apply to the input and
383	 * output sections, the best approach to have a consistent
384	 * behaviour among cards would be to disable the output path
385	 * on devices which are used to record.
386	 * However, since users like to have feedback, we only disable
387	 * the mic -- permanently.
388	 */
389        sb_setmixer(sb, SB16_OMASK, 0x1f & ~1);
390
391	return src;
392}
393
394static kobj_method_t sb16mix_mixer_methods[] = {
395    	KOBJMETHOD(mixer_init,		sb16mix_init),
396    	KOBJMETHOD(mixer_set,		sb16mix_set),
397    	KOBJMETHOD(mixer_setrecsrc,	sb16mix_setrecsrc),
398	{ 0, 0 }
399};
400MIXER_DECLARE(sb16mix_mixer);
401
402/************************************************************/
403
404static void
405sb16_release_resources(struct sb_info *sb, device_t dev)
406{
407    	if (sb->irq) {
408    		if (sb->ih)
409			bus_teardown_intr(dev, sb->irq, sb->ih);
410 		bus_release_resource(dev, SYS_RES_IRQ, 0, sb->irq);
411		sb->irq = 0;
412    	}
413    	if (sb->drq2) {
414		if (sb->drq2 != sb->drq1) {
415			isa_dma_release(rman_get_start(sb->drq2));
416			bus_release_resource(dev, SYS_RES_DRQ, 1, sb->drq2);
417		}
418		sb->drq2 = 0;
419    	}
420     	if (sb->drq1) {
421		isa_dma_release(rman_get_start(sb->drq1));
422		bus_release_resource(dev, SYS_RES_DRQ, 0, sb->drq1);
423		sb->drq1 = 0;
424    	}
425   	if (sb->io_base) {
426		bus_release_resource(dev, SYS_RES_IOPORT, 0, sb->io_base);
427		sb->io_base = 0;
428    	}
429    	if (sb->parent_dmat) {
430		bus_dma_tag_destroy(sb->parent_dmat);
431		sb->parent_dmat = 0;
432    	}
433     	free(sb, M_DEVBUF);
434}
435
436static int
437sb16_alloc_resources(struct sb_info *sb, device_t dev)
438{
439	int rid;
440
441	rid = 0;
442	if (!sb->io_base)
443    		sb->io_base = bus_alloc_resource_any(dev, SYS_RES_IOPORT,
444			&rid, RF_ACTIVE);
445
446	rid = 0;
447	if (!sb->irq)
448    		sb->irq = bus_alloc_resource_any(dev, SYS_RES_IRQ, &rid,
449			RF_ACTIVE);
450
451	rid = 0;
452	if (!sb->drq1)
453    		sb->drq1 = bus_alloc_resource_any(dev, SYS_RES_DRQ, &rid,
454			RF_ACTIVE);
455
456	rid = 1;
457	if (!sb->drq2)
458        	sb->drq2 = bus_alloc_resource_any(dev, SYS_RES_DRQ, &rid,
459			RF_ACTIVE);
460
461    	if (sb->io_base && sb->drq1 && sb->irq) {
462		isa_dma_acquire(rman_get_start(sb->drq1));
463		isa_dmainit(rman_get_start(sb->drq1), sb->bufsize);
464
465		if (sb->drq2) {
466			isa_dma_acquire(rman_get_start(sb->drq2));
467			isa_dmainit(rman_get_start(sb->drq2), sb->bufsize);
468		} else {
469			sb->drq2 = sb->drq1;
470			pcm_setflags(dev, pcm_getflags(dev) | SD_F_SIMPLEX);
471		}
472		return 0;
473	} else return ENXIO;
474}
475
476/* sbc does locking for us */
477static void
478sb_intr(void *arg)
479{
480    	struct sb_info *sb = (struct sb_info *)arg;
481    	int reason = 3, c;
482
483    	/*
484     	 * The Vibra16X has separate flags for 8 and 16 bit transfers, but
485     	 * I have no idea how to tell capture from playback interrupts...
486     	 */
487
488	reason = 0;
489	sb_lock(sb);
490    	c = sb_getmixer(sb, IRQ_STAT);
491    	if (c & 1)
492		sb_rd(sb, DSP_DATA_AVAIL); /* 8-bit int ack */
493
494    	if (c & 2)
495		sb_rd(sb, DSP_DATA_AVL16); /* 16-bit int ack */
496	sb_unlock(sb);
497
498	/*
499	 * this tells us if the source is 8-bit or 16-bit dma. We
500     	 * have to check the io channel to map it to read or write...
501     	 */
502
503	if (sb->bd_flags & BD_F_SB16X) {
504    		if (c & 1) { /* 8-bit format */
505			if (sb->pch.fmt & AFMT_8BIT)
506				reason |= 1;
507			if (sb->rch.fmt & AFMT_8BIT)
508				reason |= 2;
509    		}
510    		if (c & 2) { /* 16-bit format */
511			if (sb->pch.fmt & AFMT_16BIT)
512				reason |= 1;
513			if (sb->rch.fmt & AFMT_16BIT)
514				reason |= 2;
515    		}
516	} else {
517    		if (c & 1) { /* 8-bit dma */
518			if (sb->pch.dch == 1)
519				reason |= 1;
520			if (sb->rch.dch == 1)
521				reason |= 2;
522    		}
523    		if (c & 2) { /* 16-bit dma */
524			if (sb->pch.dch == 2)
525				reason |= 1;
526			if (sb->rch.dch == 2)
527				reason |= 2;
528    		}
529	}
530#if 0
531    	printf("sb_intr: reason=%d c=0x%x\n", reason, c);
532#endif
533    	if ((reason & 1) && (sb->pch.run))
534		chn_intr(sb->pch.channel);
535
536    	if ((reason & 2) && (sb->rch.run))
537		chn_intr(sb->rch.channel);
538}
539
540static int
541sb_setup(struct sb_info *sb)
542{
543	struct sb_chinfo *ch;
544	u_int8_t v;
545	int l, pprio;
546
547	sb_lock(sb);
548	if (sb->bd_flags & BD_F_DMARUN)
549		sndbuf_dma(sb->pch.buffer, PCMTRIG_STOP);
550	if (sb->bd_flags & BD_F_DMARUN2)
551		sndbuf_dma(sb->rch.buffer, PCMTRIG_STOP);
552	sb->bd_flags &= ~(BD_F_DMARUN | BD_F_DMARUN2);
553
554	sb_reset_dsp(sb);
555
556	if (sb->bd_flags & BD_F_SB16X) {
557		pprio = sb->pch.run? 1 : 0;
558		sndbuf_dmasetup(sb->pch.buffer, pprio? sb->drq1 : NULL);
559		sb->pch.dch = pprio? 1 : 0;
560		sndbuf_dmasetup(sb->rch.buffer, pprio? sb->drq2 : sb->drq1);
561		sb->rch.dch = pprio? 2 : 1;
562	} else {
563		if (sb->pch.run && sb->rch.run) {
564			pprio = (sb->rch.fmt & AFMT_16BIT)? 0 : 1;
565			sndbuf_dmasetup(sb->pch.buffer, pprio? sb->drq2 : sb->drq1);
566			sb->pch.dch = pprio? 2 : 1;
567			sndbuf_dmasetup(sb->rch.buffer, pprio? sb->drq1 : sb->drq2);
568			sb->rch.dch = pprio? 1 : 2;
569		} else {
570			if (sb->pch.run) {
571				sndbuf_dmasetup(sb->pch.buffer, (sb->pch.fmt & AFMT_16BIT)? sb->drq2 : sb->drq1);
572				sb->pch.dch = (sb->pch.fmt & AFMT_16BIT)? 2 : 1;
573				sndbuf_dmasetup(sb->rch.buffer, (sb->pch.fmt & AFMT_16BIT)? sb->drq1 : sb->drq2);
574				sb->rch.dch = (sb->pch.fmt & AFMT_16BIT)? 1 : 2;
575			} else if (sb->rch.run) {
576				sndbuf_dmasetup(sb->pch.buffer, (sb->rch.fmt & AFMT_16BIT)? sb->drq1 : sb->drq2);
577				sb->pch.dch = (sb->rch.fmt & AFMT_16BIT)? 1 : 2;
578				sndbuf_dmasetup(sb->rch.buffer, (sb->rch.fmt & AFMT_16BIT)? sb->drq2 : sb->drq1);
579				sb->rch.dch = (sb->rch.fmt & AFMT_16BIT)? 2 : 1;
580			}
581		}
582	}
583
584	sndbuf_dmasetdir(sb->pch.buffer, PCMDIR_PLAY);
585	sndbuf_dmasetdir(sb->rch.buffer, PCMDIR_REC);
586
587	/*
588	printf("setup: [pch = %d, pfmt = %d, pgo = %d] [rch = %d, rfmt = %d, rgo = %d]\n",
589	       sb->pch.dch, sb->pch.fmt, sb->pch.run, sb->rch.dch, sb->rch.fmt, sb->rch.run);
590	*/
591
592	ch = &sb->pch;
593	if (ch->run) {
594		l = ch->blksz;
595		if (ch->fmt & AFMT_16BIT)
596			l >>= 1;
597		l--;
598
599		/* play speed */
600		RANGE(ch->spd, 5000, 45000);
601		sb_cmd(sb, DSP_CMD_OUT16);
602    		sb_cmd(sb, ch->spd >> 8);
603		sb_cmd(sb, ch->spd & 0xff);
604
605		/* play format, length */
606		v = DSP_F16_AUTO | DSP_F16_FIFO_ON | DSP_F16_DAC;
607		v |= (ch->fmt & AFMT_16BIT)? DSP_DMA16 : DSP_DMA8;
608		sb_cmd(sb, v);
609
610		v = (ch->fmt & AFMT_STEREO)? DSP_F16_STEREO : 0;
611		v |= (ch->fmt & AFMT_SIGNED)? DSP_F16_SIGNED : 0;
612		sb_cmd2(sb, v, l);
613		sndbuf_dma(ch->buffer, PCMTRIG_START);
614		sb->bd_flags |= BD_F_DMARUN;
615	}
616
617	ch = &sb->rch;
618	if (ch->run) {
619		l = ch->blksz;
620		if (ch->fmt & AFMT_16BIT)
621			l >>= 1;
622		l--;
623
624		/* record speed */
625		RANGE(ch->spd, 5000, 45000);
626		sb_cmd(sb, DSP_CMD_IN16);
627    		sb_cmd(sb, ch->spd >> 8);
628		sb_cmd(sb, ch->spd & 0xff);
629
630		/* record format, length */
631		v = DSP_F16_AUTO | DSP_F16_FIFO_ON | DSP_F16_ADC;
632		v |= (ch->fmt & AFMT_16BIT)? DSP_DMA16 : DSP_DMA8;
633		sb_cmd(sb, v);
634
635		v = (ch->fmt & AFMT_STEREO)? DSP_F16_STEREO : 0;
636		v |= (ch->fmt & AFMT_SIGNED)? DSP_F16_SIGNED : 0;
637		sb_cmd2(sb, v, l);
638		sndbuf_dma(ch->buffer, PCMTRIG_START);
639		sb->bd_flags |= BD_F_DMARUN2;
640	}
641	sb_unlock(sb);
642
643    	return 0;
644}
645
646/* channel interface */
647static void *
648sb16chan_init(kobj_t obj, void *devinfo, struct snd_dbuf *b, struct pcm_channel *c, int dir)
649{
650	struct sb_info *sb = devinfo;
651	struct sb_chinfo *ch = (dir == PCMDIR_PLAY)? &sb->pch : &sb->rch;
652
653	ch->parent = sb;
654	ch->channel = c;
655	ch->buffer = b;
656	ch->dir = dir;
657
658	if (sndbuf_alloc(ch->buffer, sb->parent_dmat, sb->bufsize) == -1)
659		return NULL;
660
661	return ch;
662}
663
664static int
665sb16chan_setformat(kobj_t obj, void *data, u_int32_t format)
666{
667	struct sb_chinfo *ch = data;
668	struct sb_info *sb = ch->parent;
669
670	ch->fmt = format;
671	sb->prio = ch->dir;
672	sb->prio16 = (ch->fmt & AFMT_16BIT)? 1 : 0;
673
674	return 0;
675}
676
677static int
678sb16chan_setspeed(kobj_t obj, void *data, u_int32_t speed)
679{
680	struct sb_chinfo *ch = data;
681
682	ch->spd = speed;
683	return speed;
684}
685
686static int
687sb16chan_setblocksize(kobj_t obj, void *data, u_int32_t blocksize)
688{
689	struct sb_chinfo *ch = data;
690
691	ch->blksz = blocksize;
692	return ch->blksz;
693}
694
695static int
696sb16chan_trigger(kobj_t obj, void *data, int go)
697{
698	struct sb_chinfo *ch = data;
699	struct sb_info *sb = ch->parent;
700
701	if (go == PCMTRIG_EMLDMAWR || go == PCMTRIG_EMLDMARD)
702		return 0;
703
704	if (go == PCMTRIG_START)
705		ch->run = 1;
706	else
707		ch->run = 0;
708
709	sb_setup(sb);
710
711	return 0;
712}
713
714static int
715sb16chan_getptr(kobj_t obj, void *data)
716{
717	struct sb_chinfo *ch = data;
718
719	return sndbuf_dmaptr(ch->buffer);
720}
721
722static struct pcmchan_caps *
723sb16chan_getcaps(kobj_t obj, void *data)
724{
725	struct sb_chinfo *ch = data;
726	struct sb_info *sb = ch->parent;
727
728	if ((sb->prio == 0) || (sb->prio == ch->dir))
729		return &sb16x_caps;
730	else
731		return sb->prio16? &sb16_caps8 : &sb16_caps16;
732}
733
734static int
735sb16chan_resetdone(kobj_t obj, void *data)
736{
737	struct sb_chinfo *ch = data;
738	struct sb_info *sb = ch->parent;
739
740	sb->prio = 0;
741
742	return 0;
743}
744
745static kobj_method_t sb16chan_methods[] = {
746    	KOBJMETHOD(channel_init,		sb16chan_init),
747    	KOBJMETHOD(channel_resetdone,		sb16chan_resetdone),
748    	KOBJMETHOD(channel_setformat,		sb16chan_setformat),
749    	KOBJMETHOD(channel_setspeed,		sb16chan_setspeed),
750    	KOBJMETHOD(channel_setblocksize,	sb16chan_setblocksize),
751    	KOBJMETHOD(channel_trigger,		sb16chan_trigger),
752    	KOBJMETHOD(channel_getptr,		sb16chan_getptr),
753    	KOBJMETHOD(channel_getcaps,		sb16chan_getcaps),
754	{ 0, 0 }
755};
756CHANNEL_DECLARE(sb16chan);
757
758/************************************************************/
759
760static int
761sb16_probe(device_t dev)
762{
763    	char buf[64];
764	uintptr_t func, ver, r, f;
765
766	/* The parent device has already been probed. */
767	r = BUS_READ_IVAR(device_get_parent(dev), dev, 0, &func);
768	if (func != SCF_PCM)
769		return (ENXIO);
770
771	r = BUS_READ_IVAR(device_get_parent(dev), dev, 1, &ver);
772	f = (ver & 0xffff0000) >> 16;
773	ver &= 0x0000ffff;
774	if (f & BD_F_SB16) {
775		snprintf(buf, sizeof buf, "SB16 DSP %d.%02d%s", (int) ver >> 8, (int) ver & 0xff,
776			 (f & BD_F_SB16X)? " (ViBRA16X)" : "");
777    		device_set_desc_copy(dev, buf);
778		return 0;
779	} else
780		return (ENXIO);
781}
782
783static int
784sb16_attach(device_t dev)
785{
786    	struct sb_info *sb;
787	uintptr_t ver;
788    	char status[SND_STATUSLEN], status2[SND_STATUSLEN];
789
790    	sb = (struct sb_info *)malloc(sizeof *sb, M_DEVBUF, M_NOWAIT | M_ZERO);
791    	if (!sb)
792		return ENXIO;
793
794	sb->parent_dev = device_get_parent(dev);
795	BUS_READ_IVAR(sb->parent_dev, dev, 1, &ver);
796	sb->bd_id = ver & 0x0000ffff;
797	sb->bd_flags = (ver & 0xffff0000) >> 16;
798	sb->bufsize = pcm_getbuffersize(dev, 4096, SB16_BUFFSIZE, 65536);
799
800    	if (sb16_alloc_resources(sb, dev))
801		goto no;
802    	if (sb_reset_dsp(sb))
803		goto no;
804	if (mixer_init(dev, &sb16mix_mixer_class, sb))
805		goto no;
806	if (snd_setup_intr(dev, sb->irq, INTR_MPSAFE, sb_intr, sb, &sb->ih))
807		goto no;
808
809	if (sb->bd_flags & BD_F_SB16X)
810		pcm_setflags(dev, pcm_getflags(dev) | SD_F_SIMPLEX);
811
812	sb->prio = 0;
813
814    	if (bus_dma_tag_create(/*parent*/NULL, /*alignment*/2, /*boundary*/0,
815			/*lowaddr*/BUS_SPACE_MAXADDR_24BIT,
816			/*highaddr*/BUS_SPACE_MAXADDR,
817			/*filter*/NULL, /*filterarg*/NULL,
818			/*maxsize*/sb->bufsize, /*nsegments*/1,
819			/*maxsegz*/0x3ffff, /*flags*/0,
820			/*lockfunc*/busdma_lock_mutex, /*lockarg*/&Giant,
821			&sb->parent_dmat) != 0) {
822		device_printf(dev, "unable to create dma tag\n");
823		goto no;
824    	}
825
826    	if (!(pcm_getflags(dev) & SD_F_SIMPLEX))
827		snprintf(status2, SND_STATUSLEN, ":%ld", rman_get_start(sb->drq2));
828	else
829		status2[0] = '\0';
830
831    	snprintf(status, SND_STATUSLEN, "at io 0x%lx irq %ld drq %ld%s bufsz %ud %s",
832    	     	rman_get_start(sb->io_base), rman_get_start(sb->irq),
833		rman_get_start(sb->drq1), status2, sb->bufsize,
834		PCM_KLDSTRING(snd_sb16));
835
836    	if (pcm_register(dev, sb, 1, 1))
837		goto no;
838	pcm_addchan(dev, PCMDIR_REC, &sb16chan_class, sb);
839	pcm_addchan(dev, PCMDIR_PLAY, &sb16chan_class, sb);
840
841    	pcm_setstatus(dev, status);
842
843    	return 0;
844
845no:
846    	sb16_release_resources(sb, dev);
847    	return ENXIO;
848}
849
850static int
851sb16_detach(device_t dev)
852{
853	int r;
854	struct sb_info *sb;
855
856	r = pcm_unregister(dev);
857	if (r)
858		return r;
859
860	sb = pcm_getdevinfo(dev);
861    	sb16_release_resources(sb, dev);
862	return 0;
863}
864
865static device_method_t sb16_methods[] = {
866	/* Device interface */
867	DEVMETHOD(device_probe,		sb16_probe),
868	DEVMETHOD(device_attach,	sb16_attach),
869	DEVMETHOD(device_detach,	sb16_detach),
870
871	{ 0, 0 }
872};
873
874static driver_t sb16_driver = {
875	"pcm",
876	sb16_methods,
877	PCM_SOFTC_SIZE,
878};
879
880DRIVER_MODULE(snd_sb16, sbc, sb16_driver, pcm_devclass, 0, 0);
881MODULE_DEPEND(snd_sb16, snd_pcm, PCM_MINVER, PCM_PREFVER, PCM_MAXVER);
882MODULE_DEPEND(snd_sb16, snd_sbc, 1, 1, 1);
883MODULE_VERSION(snd_sb16, 1);
884