sb16.c revision 302408
1/*-
2 * Copyright (c) 1999 Cameron Grant <cg@freebsd.org>
3 * Copyright (c) 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#ifdef HAVE_KERNEL_OPTION_HEADERS
33#include "opt_snd.h"
34#endif
35
36#include <dev/sound/pcm/sound.h>
37
38#include  <dev/sound/isa/sb.h>
39#include  <dev/sound/chip.h>
40
41#include <isa/isavar.h>
42
43#include "mixer_if.h"
44
45SND_DECLARE_FILE("$FreeBSD: stable/11/sys/dev/sound/isa/sb16.c 297862 2016-04-12 17:23:03Z pfg $");
46
47#define SB16_BUFFSIZE	4096
48#define PLAIN_SB16(x) ((((x)->bd_flags) & (BD_F_SB16|BD_F_SB16X)) == BD_F_SB16)
49
50static u_int32_t sb16_fmt8[] = {
51	SND_FORMAT(AFMT_U8, 1, 0),
52	SND_FORMAT(AFMT_U8, 2, 0),
53	0
54};
55static struct pcmchan_caps sb16_caps8 = {5000, 45000, sb16_fmt8, 0};
56
57static u_int32_t sb16_fmt16[] = {
58	SND_FORMAT(AFMT_S16_LE, 1, 0),
59	SND_FORMAT(AFMT_S16_LE, 2, 0),
60	0
61};
62static struct pcmchan_caps sb16_caps16 = {5000, 45000, sb16_fmt16, 0};
63
64static u_int32_t sb16x_fmt[] = {
65	SND_FORMAT(AFMT_U8, 1, 0),
66	SND_FORMAT(AFMT_U8, 2, 0),
67	SND_FORMAT(AFMT_S16_LE, 1, 0),
68	SND_FORMAT(AFMT_S16_LE, 2, 0),
69	0
70};
71static struct pcmchan_caps sb16x_caps = {5000, 49000, sb16x_fmt, 0};
72
73struct sb_info;
74
75struct sb_chinfo {
76	struct sb_info *parent;
77	struct pcm_channel *channel;
78	struct snd_dbuf *buffer;
79	int dir, run, dch;
80	u_int32_t fmt, spd, blksz;
81};
82
83struct sb_info {
84    	struct resource *io_base;	/* I/O address for the board */
85    	struct resource *irq;
86   	struct resource *drq1;
87    	struct resource *drq2;
88    	void *ih;
89    	bus_dma_tag_t parent_dmat;
90
91	unsigned int bufsize;
92    	int bd_id;
93    	u_long bd_flags;       /* board-specific flags */
94	int prio, prio16;
95    	struct sb_chinfo pch, rch;
96	device_t parent_dev;
97};
98
99#if 0
100static void sb_lock(struct sb_info *sb);
101static void sb_unlock(struct sb_info *sb);
102static int sb_rd(struct sb_info *sb, int reg);
103static void sb_wr(struct sb_info *sb, int reg, u_int8_t val);
104static int sb_cmd(struct sb_info *sb, u_char val);
105/* static int sb_cmd1(struct sb_info *sb, u_char cmd, int val); */
106static int sb_cmd2(struct sb_info *sb, u_char cmd, int val);
107static u_int sb_get_byte(struct sb_info *sb);
108static void sb_setmixer(struct sb_info *sb, u_int port, u_int value);
109static int sb_getmixer(struct sb_info *sb, u_int port);
110static int sb_reset_dsp(struct sb_info *sb);
111
112static void sb_intr(void *arg);
113#endif
114
115/*
116 * Common code for the midi and pcm functions
117 *
118 * sb_cmd write a single byte to the CMD port.
119 * sb_cmd1 write a CMD + 1 byte arg
120 * sb_cmd2 write a CMD + 2 byte arg
121 * sb_get_byte returns a single byte from the DSP data port
122 */
123
124static void
125sb_lock(struct sb_info *sb) {
126
127	sbc_lock(device_get_softc(sb->parent_dev));
128}
129
130static void
131sb_lockassert(struct sb_info *sb) {
132
133	sbc_lockassert(device_get_softc(sb->parent_dev));
134}
135
136static void
137sb_unlock(struct sb_info *sb) {
138
139	sbc_unlock(device_get_softc(sb->parent_dev));
140}
141
142static int
143port_rd(struct resource *port, int off)
144{
145	return bus_space_read_1(rman_get_bustag(port), rman_get_bushandle(port), off);
146}
147
148static void
149port_wr(struct resource *port, int off, u_int8_t data)
150{
151	bus_space_write_1(rman_get_bustag(port), rman_get_bushandle(port), off, data);
152}
153
154static int
155sb_rd(struct sb_info *sb, int reg)
156{
157	return port_rd(sb->io_base, reg);
158}
159
160static void
161sb_wr(struct sb_info *sb, int reg, u_int8_t val)
162{
163	port_wr(sb->io_base, reg, val);
164}
165
166static int
167sb_dspwr(struct sb_info *sb, u_char val)
168{
169    	int  i;
170
171    	for (i = 0; i < 1000; i++) {
172		if ((sb_rd(sb, SBDSP_STATUS) & 0x80))
173	    		DELAY((i > 100)? 1000 : 10);
174	    	else {
175			sb_wr(sb, SBDSP_CMD, val);
176			return 1;
177		}
178    	}
179	if (curthread->td_intr_nesting_level == 0)
180		printf("sb_dspwr(0x%02x) timed out.\n", val);
181    	return 0;
182}
183
184static int
185sb_cmd(struct sb_info *sb, u_char val)
186{
187#if 0
188	printf("sb_cmd: %x\n", val);
189#endif
190    	return sb_dspwr(sb, val);
191}
192
193/*
194static int
195sb_cmd1(struct sb_info *sb, u_char cmd, int val)
196{
197#if 0
198    	printf("sb_cmd1: %x, %x\n", cmd, val);
199#endif
200    	if (sb_dspwr(sb, cmd)) {
201		return sb_dspwr(sb, val & 0xff);
202    	} else return 0;
203}
204*/
205
206static int
207sb_cmd2(struct sb_info *sb, u_char cmd, int val)
208{
209	int r;
210
211#if 0
212    	printf("sb_cmd2: %x, %x\n", cmd, val);
213#endif
214	sb_lockassert(sb);
215	r = 0;
216    	if (sb_dspwr(sb, cmd)) {
217		if (sb_dspwr(sb, val & 0xff)) {
218			if (sb_dspwr(sb, (val >> 8) & 0xff)) {
219				r = 1;
220			}
221		}
222    	}
223
224	return r;
225}
226
227/*
228 * in the SB, there is a set of indirect "mixer" registers with
229 * address at offset 4, data at offset 5
230 */
231static void
232sb_setmixer(struct sb_info *sb, u_int port, u_int value)
233{
234	sb_lock(sb);
235    	sb_wr(sb, SB_MIX_ADDR, (u_char) (port & 0xff)); /* Select register */
236    	DELAY(10);
237    	sb_wr(sb, SB_MIX_DATA, (u_char) (value & 0xff));
238    	DELAY(10);
239	sb_unlock(sb);
240}
241
242static int
243sb_getmixer(struct sb_info *sb, u_int port)
244{
245    	int val;
246
247    	sb_lockassert(sb);
248    	sb_wr(sb, SB_MIX_ADDR, (u_char) (port & 0xff)); /* Select register */
249    	DELAY(10);
250    	val = sb_rd(sb, SB_MIX_DATA);
251    	DELAY(10);
252
253    	return val;
254}
255
256static u_int
257sb_get_byte(struct sb_info *sb)
258{
259    	int i;
260
261    	for (i = 1000; i > 0; i--) {
262		if (sb_rd(sb, DSP_DATA_AVAIL) & 0x80)
263			return sb_rd(sb, DSP_READ);
264		else
265			DELAY(20);
266    	}
267    	return 0xffff;
268}
269
270static int
271sb_reset_dsp(struct sb_info *sb)
272{
273	u_char b;
274
275	sb_lockassert(sb);
276    	sb_wr(sb, SBDSP_RST, 3);
277    	DELAY(100);
278    	sb_wr(sb, SBDSP_RST, 0);
279	b = sb_get_byte(sb);
280    	if (b != 0xAA) {
281        	DEB(printf("sb_reset_dsp 0x%lx failed\n",
282			   rman_get_start(sb->io_base)));
283		return ENXIO;	/* Sorry */
284    	}
285    	return 0;
286}
287
288/************************************************************/
289
290struct sb16_mixent {
291	int reg;
292	int bits;
293	int ofs;
294	int stereo;
295};
296
297static const struct sb16_mixent sb16_mixtab[32] = {
298    	[SOUND_MIXER_VOLUME]	= { 0x30, 5, 3, 1 },
299    	[SOUND_MIXER_PCM]	= { 0x32, 5, 3, 1 },
300    	[SOUND_MIXER_SYNTH]	= { 0x34, 5, 3, 1 },
301    	[SOUND_MIXER_CD]	= { 0x36, 5, 3, 1 },
302    	[SOUND_MIXER_LINE]	= { 0x38, 5, 3, 1 },
303    	[SOUND_MIXER_MIC]	= { 0x3a, 5, 3, 0 },
304       	[SOUND_MIXER_SPEAKER]	= { 0x3b, 5, 3, 0 },
305    	[SOUND_MIXER_IGAIN]	= { 0x3f, 2, 6, 1 },
306    	[SOUND_MIXER_OGAIN]	= { 0x41, 2, 6, 1 },
307	[SOUND_MIXER_TREBLE]	= { 0x44, 4, 4, 1 },
308    	[SOUND_MIXER_BASS]	= { 0x46, 4, 4, 1 },
309	[SOUND_MIXER_LINE1]	= { 0x52, 5, 3, 1 }
310};
311
312static int
313sb16mix_init(struct snd_mixer *m)
314{
315    	struct sb_info *sb = mix_getdevinfo(m);
316
317	mix_setdevs(m, SOUND_MASK_SYNTH | SOUND_MASK_PCM | SOUND_MASK_SPEAKER |
318     		       SOUND_MASK_LINE | SOUND_MASK_MIC | SOUND_MASK_CD |
319     		       SOUND_MASK_IGAIN | SOUND_MASK_OGAIN | SOUND_MASK_LINE1 |
320     		       SOUND_MASK_VOLUME | SOUND_MASK_BASS | SOUND_MASK_TREBLE);
321
322	mix_setrecdevs(m, SOUND_MASK_SYNTH | SOUND_MASK_LINE |
323			  SOUND_MASK_LINE1 | SOUND_MASK_MIC | SOUND_MASK_CD);
324
325	sb_setmixer(sb, 0x3c, 0x1f); /* make all output active */
326
327	sb_setmixer(sb, 0x3d, 0); /* make all inputs-l off */
328	sb_setmixer(sb, 0x3e, 0); /* make all inputs-r off */
329
330	return 0;
331}
332
333static int
334rel2abs_volume(int x, int max)
335{
336	int temp;
337
338	temp = ((x * max) + 50) / 100;
339	if (temp > max)
340		temp = max;
341	else if (temp < 0)
342		temp = 0;
343	return (temp);
344}
345
346static int
347sb16mix_set(struct snd_mixer *m, unsigned dev, unsigned left, unsigned right)
348{
349    	struct sb_info *sb = mix_getdevinfo(m);
350    	const struct sb16_mixent *e;
351    	int max;
352
353	e = &sb16_mixtab[dev];
354	max = (1 << e->bits) - 1;
355
356	left = rel2abs_volume(left, max);
357	right = rel2abs_volume(right, max);
358
359	sb_setmixer(sb, e->reg, left << e->ofs);
360	if (e->stereo)
361		sb_setmixer(sb, e->reg + 1, right << e->ofs);
362	else
363		right = left;
364
365	left = (left * 100) / max;
366	right = (right * 100) / max;
367
368    	return left | (right << 8);
369}
370
371static u_int32_t
372sb16mix_setrecsrc(struct snd_mixer *m, u_int32_t src)
373{
374    	struct sb_info *sb = mix_getdevinfo(m);
375    	u_char recdev_l, recdev_r;
376
377	recdev_l = 0;
378	recdev_r = 0;
379	if (src & SOUND_MASK_MIC) {
380		recdev_l |= 0x01; /* mono mic */
381		recdev_r |= 0x01;
382	}
383
384	if (src & SOUND_MASK_CD) {
385		recdev_l |= 0x04; /* l cd */
386		recdev_r |= 0x02; /* r cd */
387	}
388
389	if (src & SOUND_MASK_LINE) {
390		recdev_l |= 0x10; /* l line */
391		recdev_r |= 0x08; /* r line */
392	}
393
394	if (src & SOUND_MASK_SYNTH) {
395		recdev_l |= 0x40; /* l midi */
396		recdev_r |= 0x20; /* r midi */
397	}
398
399	sb_setmixer(sb, SB16_IMASK_L, recdev_l);
400	sb_setmixer(sb, SB16_IMASK_R, recdev_r);
401
402	/* Switch on/off FM tuner source */
403	if (src & SOUND_MASK_LINE1)
404		sb_setmixer(sb, 0x4a, 0x0c);
405	else
406		sb_setmixer(sb, 0x4a, 0x00);
407
408	/*
409	 * since the same volume controls apply to the input and
410	 * output sections, the best approach to have a consistent
411	 * behaviour among cards would be to disable the output path
412	 * on devices which are used to record.
413	 * However, since users like to have feedback, we only disable
414	 * the mic -- permanently.
415	 */
416        sb_setmixer(sb, SB16_OMASK, 0x1f & ~1);
417
418	return src;
419}
420
421static kobj_method_t sb16mix_mixer_methods[] = {
422    	KOBJMETHOD(mixer_init,		sb16mix_init),
423    	KOBJMETHOD(mixer_set,		sb16mix_set),
424    	KOBJMETHOD(mixer_setrecsrc,	sb16mix_setrecsrc),
425	KOBJMETHOD_END
426};
427MIXER_DECLARE(sb16mix_mixer);
428
429/************************************************************/
430
431static void
432sb16_release_resources(struct sb_info *sb, device_t dev)
433{
434    	if (sb->irq) {
435    		if (sb->ih)
436			bus_teardown_intr(dev, sb->irq, sb->ih);
437 		bus_release_resource(dev, SYS_RES_IRQ, 0, sb->irq);
438		sb->irq = NULL;
439    	}
440    	if (sb->drq2) {
441		if (sb->drq2 != sb->drq1) {
442			isa_dma_release(rman_get_start(sb->drq2));
443			bus_release_resource(dev, SYS_RES_DRQ, 1, sb->drq2);
444		}
445		sb->drq2 = NULL;
446    	}
447     	if (sb->drq1) {
448		isa_dma_release(rman_get_start(sb->drq1));
449		bus_release_resource(dev, SYS_RES_DRQ, 0, sb->drq1);
450		sb->drq1 = NULL;
451    	}
452   	if (sb->io_base) {
453		bus_release_resource(dev, SYS_RES_IOPORT, 0, sb->io_base);
454		sb->io_base = NULL;
455    	}
456    	if (sb->parent_dmat) {
457		bus_dma_tag_destroy(sb->parent_dmat);
458		sb->parent_dmat = 0;
459    	}
460     	free(sb, M_DEVBUF);
461}
462
463static int
464sb16_alloc_resources(struct sb_info *sb, device_t dev)
465{
466	int rid;
467
468	rid = 0;
469	if (!sb->io_base)
470    		sb->io_base = bus_alloc_resource_any(dev, SYS_RES_IOPORT,
471			&rid, RF_ACTIVE);
472
473	rid = 0;
474	if (!sb->irq)
475    		sb->irq = bus_alloc_resource_any(dev, SYS_RES_IRQ, &rid,
476			RF_ACTIVE);
477
478	rid = 0;
479	if (!sb->drq1)
480    		sb->drq1 = bus_alloc_resource_any(dev, SYS_RES_DRQ, &rid,
481			RF_ACTIVE);
482
483	rid = 1;
484	if (!sb->drq2)
485        	sb->drq2 = bus_alloc_resource_any(dev, SYS_RES_DRQ, &rid,
486			RF_ACTIVE);
487
488    	if (sb->io_base && sb->drq1 && sb->irq) {
489		isa_dma_acquire(rman_get_start(sb->drq1));
490		isa_dmainit(rman_get_start(sb->drq1), sb->bufsize);
491
492		if (sb->drq2) {
493			isa_dma_acquire(rman_get_start(sb->drq2));
494			isa_dmainit(rman_get_start(sb->drq2), sb->bufsize);
495		} else {
496			sb->drq2 = sb->drq1;
497			pcm_setflags(dev, pcm_getflags(dev) | SD_F_SIMPLEX);
498		}
499		return 0;
500	} else return ENXIO;
501}
502
503/* sbc does locking for us */
504static void
505sb_intr(void *arg)
506{
507    	struct sb_info *sb = (struct sb_info *)arg;
508    	int reason, c;
509
510    	/*
511     	 * The Vibra16X has separate flags for 8 and 16 bit transfers, but
512     	 * I have no idea how to tell capture from playback interrupts...
513     	 */
514
515	reason = 0;
516	sb_lock(sb);
517    	c = sb_getmixer(sb, IRQ_STAT);
518    	if (c & 1)
519		sb_rd(sb, DSP_DATA_AVAIL); /* 8-bit int ack */
520
521    	if (c & 2)
522		sb_rd(sb, DSP_DATA_AVL16); /* 16-bit int ack */
523	sb_unlock(sb);
524
525	/*
526	 * this tells us if the source is 8-bit or 16-bit dma. We
527     	 * have to check the io channel to map it to read or write...
528     	 */
529
530	if (sb->bd_flags & BD_F_SB16X) {
531    		if (c & 1) { /* 8-bit format */
532			if (sb->pch.fmt & AFMT_8BIT)
533				reason |= 1;
534			if (sb->rch.fmt & AFMT_8BIT)
535				reason |= 2;
536    		}
537    		if (c & 2) { /* 16-bit format */
538			if (sb->pch.fmt & AFMT_16BIT)
539				reason |= 1;
540			if (sb->rch.fmt & AFMT_16BIT)
541				reason |= 2;
542    		}
543	} else {
544    		if (c & 1) { /* 8-bit dma */
545			if (sb->pch.dch == 1)
546				reason |= 1;
547			if (sb->rch.dch == 1)
548				reason |= 2;
549    		}
550    		if (c & 2) { /* 16-bit dma */
551			if (sb->pch.dch == 2)
552				reason |= 1;
553			if (sb->rch.dch == 2)
554				reason |= 2;
555    		}
556	}
557#if 0
558    	printf("sb_intr: reason=%d c=0x%x\n", reason, c);
559#endif
560    	if ((reason & 1) && (sb->pch.run))
561		chn_intr(sb->pch.channel);
562
563    	if ((reason & 2) && (sb->rch.run))
564		chn_intr(sb->rch.channel);
565}
566
567static int
568sb_setup(struct sb_info *sb)
569{
570	struct sb_chinfo *ch;
571	u_int8_t v;
572	int l, pprio;
573
574	sb_lock(sb);
575	if (sb->bd_flags & BD_F_DMARUN)
576		sndbuf_dma(sb->pch.buffer, PCMTRIG_STOP);
577	if (sb->bd_flags & BD_F_DMARUN2)
578		sndbuf_dma(sb->rch.buffer, PCMTRIG_STOP);
579	sb->bd_flags &= ~(BD_F_DMARUN | BD_F_DMARUN2);
580
581	sb_reset_dsp(sb);
582
583	if (sb->bd_flags & BD_F_SB16X) {
584		/* full-duplex doesn't work! */
585		pprio = sb->pch.run? 1 : 0;
586		sndbuf_dmasetup(sb->pch.buffer, pprio? sb->drq1 : sb->drq2);
587		sb->pch.dch = pprio? 1 : 0;
588		sndbuf_dmasetup(sb->rch.buffer, pprio? sb->drq2 : sb->drq1);
589		sb->rch.dch = pprio? 2 : 1;
590	} else {
591		if (sb->pch.run && sb->rch.run) {
592			pprio = (sb->rch.fmt & AFMT_16BIT)? 0 : 1;
593			sndbuf_dmasetup(sb->pch.buffer, pprio? sb->drq2 : sb->drq1);
594			sb->pch.dch = pprio? 2 : 1;
595			sndbuf_dmasetup(sb->rch.buffer, pprio? sb->drq1 : sb->drq2);
596			sb->rch.dch = pprio? 1 : 2;
597		} else {
598			if (sb->pch.run) {
599				sndbuf_dmasetup(sb->pch.buffer, (sb->pch.fmt & AFMT_16BIT)? sb->drq2 : sb->drq1);
600				sb->pch.dch = (sb->pch.fmt & AFMT_16BIT)? 2 : 1;
601				sndbuf_dmasetup(sb->rch.buffer, (sb->pch.fmt & AFMT_16BIT)? sb->drq1 : sb->drq2);
602				sb->rch.dch = (sb->pch.fmt & AFMT_16BIT)? 1 : 2;
603			} else if (sb->rch.run) {
604				sndbuf_dmasetup(sb->pch.buffer, (sb->rch.fmt & AFMT_16BIT)? sb->drq1 : sb->drq2);
605				sb->pch.dch = (sb->rch.fmt & AFMT_16BIT)? 1 : 2;
606				sndbuf_dmasetup(sb->rch.buffer, (sb->rch.fmt & AFMT_16BIT)? sb->drq2 : sb->drq1);
607				sb->rch.dch = (sb->rch.fmt & AFMT_16BIT)? 2 : 1;
608			}
609		}
610	}
611
612	sndbuf_dmasetdir(sb->pch.buffer, PCMDIR_PLAY);
613	sndbuf_dmasetdir(sb->rch.buffer, PCMDIR_REC);
614
615	/*
616	printf("setup: [pch = %d, pfmt = %d, pgo = %d] [rch = %d, rfmt = %d, rgo = %d]\n",
617	       sb->pch.dch, sb->pch.fmt, sb->pch.run, sb->rch.dch, sb->rch.fmt, sb->rch.run);
618	*/
619
620	ch = &sb->pch;
621	if (ch->run) {
622		l = ch->blksz;
623		if (ch->fmt & AFMT_16BIT)
624			l >>= 1;
625		l--;
626
627		/* play speed */
628		RANGE(ch->spd, 5000, 45000);
629		sb_cmd(sb, DSP_CMD_OUT16);
630    		sb_cmd(sb, ch->spd >> 8);
631		sb_cmd(sb, ch->spd & 0xff);
632
633		/* play format, length */
634		v = DSP_F16_AUTO | DSP_F16_FIFO_ON | DSP_F16_DAC;
635		v |= (ch->fmt & AFMT_16BIT)? DSP_DMA16 : DSP_DMA8;
636		sb_cmd(sb, v);
637
638		v = (AFMT_CHANNEL(ch->fmt) > 1)? DSP_F16_STEREO : 0;
639		v |= (ch->fmt & AFMT_SIGNED)? DSP_F16_SIGNED : 0;
640		sb_cmd2(sb, v, l);
641		sndbuf_dma(ch->buffer, PCMTRIG_START);
642		sb->bd_flags |= BD_F_DMARUN;
643	}
644
645	ch = &sb->rch;
646	if (ch->run) {
647		l = ch->blksz;
648		if (ch->fmt & AFMT_16BIT)
649			l >>= 1;
650		l--;
651
652		/* record speed */
653		RANGE(ch->spd, 5000, 45000);
654		sb_cmd(sb, DSP_CMD_IN16);
655    		sb_cmd(sb, ch->spd >> 8);
656		sb_cmd(sb, ch->spd & 0xff);
657
658		/* record format, length */
659		v = DSP_F16_AUTO | DSP_F16_FIFO_ON | DSP_F16_ADC;
660		v |= (ch->fmt & AFMT_16BIT)? DSP_DMA16 : DSP_DMA8;
661		sb_cmd(sb, v);
662
663		v = (AFMT_CHANNEL(ch->fmt) > 1)? DSP_F16_STEREO : 0;
664		v |= (ch->fmt & AFMT_SIGNED)? DSP_F16_SIGNED : 0;
665		sb_cmd2(sb, v, l);
666		sndbuf_dma(ch->buffer, PCMTRIG_START);
667		sb->bd_flags |= BD_F_DMARUN2;
668	}
669	sb_unlock(sb);
670
671    	return 0;
672}
673
674/* channel interface */
675static void *
676sb16chan_init(kobj_t obj, void *devinfo, struct snd_dbuf *b, struct pcm_channel *c, int dir)
677{
678	struct sb_info *sb = devinfo;
679	struct sb_chinfo *ch = (dir == PCMDIR_PLAY)? &sb->pch : &sb->rch;
680
681	ch->parent = sb;
682	ch->channel = c;
683	ch->buffer = b;
684	ch->dir = dir;
685
686	if (sndbuf_alloc(ch->buffer, sb->parent_dmat, 0, sb->bufsize) != 0)
687		return NULL;
688
689	return ch;
690}
691
692static int
693sb16chan_setformat(kobj_t obj, void *data, u_int32_t format)
694{
695	struct sb_chinfo *ch = data;
696	struct sb_info *sb = ch->parent;
697
698	ch->fmt = format;
699	sb->prio = ch->dir;
700	sb->prio16 = (ch->fmt & AFMT_16BIT)? 1 : 0;
701
702	return 0;
703}
704
705static u_int32_t
706sb16chan_setspeed(kobj_t obj, void *data, u_int32_t speed)
707{
708	struct sb_chinfo *ch = data;
709
710	ch->spd = speed;
711	return speed;
712}
713
714static u_int32_t
715sb16chan_setblocksize(kobj_t obj, void *data, u_int32_t blocksize)
716{
717	struct sb_chinfo *ch = data;
718
719	ch->blksz = blocksize;
720	return ch->blksz;
721}
722
723static int
724sb16chan_trigger(kobj_t obj, void *data, int go)
725{
726	struct sb_chinfo *ch = data;
727	struct sb_info *sb = ch->parent;
728
729	if (!PCMTRIG_COMMON(go))
730		return 0;
731
732	if (go == PCMTRIG_START)
733		ch->run = 1;
734	else
735		ch->run = 0;
736
737	sb_setup(sb);
738
739	return 0;
740}
741
742static u_int32_t
743sb16chan_getptr(kobj_t obj, void *data)
744{
745	struct sb_chinfo *ch = data;
746
747	return sndbuf_dmaptr(ch->buffer);
748}
749
750static struct pcmchan_caps *
751sb16chan_getcaps(kobj_t obj, void *data)
752{
753	struct sb_chinfo *ch = data;
754	struct sb_info *sb = ch->parent;
755
756	if ((sb->prio == 0) || (sb->prio == ch->dir))
757		return &sb16x_caps;
758	else
759		return sb->prio16? &sb16_caps8 : &sb16_caps16;
760}
761
762static int
763sb16chan_resetdone(kobj_t obj, void *data)
764{
765	struct sb_chinfo *ch = data;
766	struct sb_info *sb = ch->parent;
767
768	sb->prio = 0;
769
770	return 0;
771}
772
773static kobj_method_t sb16chan_methods[] = {
774    	KOBJMETHOD(channel_init,		sb16chan_init),
775    	KOBJMETHOD(channel_resetdone,		sb16chan_resetdone),
776    	KOBJMETHOD(channel_setformat,		sb16chan_setformat),
777    	KOBJMETHOD(channel_setspeed,		sb16chan_setspeed),
778    	KOBJMETHOD(channel_setblocksize,	sb16chan_setblocksize),
779    	KOBJMETHOD(channel_trigger,		sb16chan_trigger),
780    	KOBJMETHOD(channel_getptr,		sb16chan_getptr),
781    	KOBJMETHOD(channel_getcaps,		sb16chan_getcaps),
782	KOBJMETHOD_END
783};
784CHANNEL_DECLARE(sb16chan);
785
786/************************************************************/
787
788static int
789sb16_probe(device_t dev)
790{
791    	char buf[64];
792	uintptr_t func, ver, r, f;
793
794	/* The parent device has already been probed. */
795	r = BUS_READ_IVAR(device_get_parent(dev), dev, 0, &func);
796	if (func != SCF_PCM)
797		return (ENXIO);
798
799	r = BUS_READ_IVAR(device_get_parent(dev), dev, 1, &ver);
800	f = (ver & 0xffff0000) >> 16;
801	ver &= 0x0000ffff;
802	if (f & BD_F_SB16) {
803		snprintf(buf, sizeof buf, "SB16 DSP %d.%02d%s", (int) ver >> 8, (int) ver & 0xff,
804			 (f & BD_F_SB16X)? " (ViBRA16X)" : "");
805    		device_set_desc_copy(dev, buf);
806		return 0;
807	} else
808		return (ENXIO);
809}
810
811static int
812sb16_attach(device_t dev)
813{
814    	struct sb_info *sb;
815	uintptr_t ver;
816    	char status[SND_STATUSLEN], status2[SND_STATUSLEN];
817
818    	sb = malloc(sizeof(*sb), M_DEVBUF, M_WAITOK | M_ZERO);
819	sb->parent_dev = device_get_parent(dev);
820	BUS_READ_IVAR(sb->parent_dev, dev, 1, &ver);
821	sb->bd_id = ver & 0x0000ffff;
822	sb->bd_flags = (ver & 0xffff0000) >> 16;
823	sb->bufsize = pcm_getbuffersize(dev, 4096, SB16_BUFFSIZE, 65536);
824
825	if (sb16_alloc_resources(sb, dev))
826		goto no;
827	sb_lock(sb);
828	if (sb_reset_dsp(sb)) {
829		sb_unlock(sb);
830		goto no;
831	}
832	sb_unlock(sb);
833	if (mixer_init(dev, &sb16mix_mixer_class, sb))
834		goto no;
835	if (snd_setup_intr(dev, sb->irq, 0, sb_intr, sb, &sb->ih))
836		goto no;
837
838	if (sb->bd_flags & BD_F_SB16X)
839		pcm_setflags(dev, pcm_getflags(dev) | SD_F_SIMPLEX);
840
841	sb->prio = 0;
842
843    	if (bus_dma_tag_create(/*parent*/bus_get_dma_tag(dev), /*alignment*/2,
844			/*boundary*/0,
845			/*lowaddr*/BUS_SPACE_MAXADDR_24BIT,
846			/*highaddr*/BUS_SPACE_MAXADDR,
847			/*filter*/NULL, /*filterarg*/NULL,
848			/*maxsize*/sb->bufsize, /*nsegments*/1,
849			/*maxsegz*/0x3ffff, /*flags*/0,
850			/*lockfunc*/busdma_lock_mutex, /*lockarg*/&Giant,
851			&sb->parent_dmat) != 0) {
852		device_printf(dev, "unable to create dma tag\n");
853		goto no;
854    	}
855
856    	if (!(pcm_getflags(dev) & SD_F_SIMPLEX))
857		snprintf(status2, SND_STATUSLEN, ":%jd", rman_get_start(sb->drq2));
858	else
859		status2[0] = '\0';
860
861    	snprintf(status, SND_STATUSLEN, "at io 0x%jx irq %jd drq %jd%s bufsz %u %s",
862    	     	rman_get_start(sb->io_base), rman_get_start(sb->irq),
863		rman_get_start(sb->drq1), status2, sb->bufsize,
864		PCM_KLDSTRING(snd_sb16));
865
866    	if (pcm_register(dev, sb, 1, 1))
867		goto no;
868	pcm_addchan(dev, PCMDIR_REC, &sb16chan_class, sb);
869	pcm_addchan(dev, PCMDIR_PLAY, &sb16chan_class, sb);
870
871    	pcm_setstatus(dev, status);
872
873    	return 0;
874
875no:
876    	sb16_release_resources(sb, dev);
877    	return ENXIO;
878}
879
880static int
881sb16_detach(device_t dev)
882{
883	int r;
884	struct sb_info *sb;
885
886	r = pcm_unregister(dev);
887	if (r)
888		return r;
889
890	sb = pcm_getdevinfo(dev);
891    	sb16_release_resources(sb, dev);
892	return 0;
893}
894
895static device_method_t sb16_methods[] = {
896	/* Device interface */
897	DEVMETHOD(device_probe,		sb16_probe),
898	DEVMETHOD(device_attach,	sb16_attach),
899	DEVMETHOD(device_detach,	sb16_detach),
900
901	{ 0, 0 }
902};
903
904static driver_t sb16_driver = {
905	"pcm",
906	sb16_methods,
907	PCM_SOFTC_SIZE,
908};
909
910DRIVER_MODULE(snd_sb16, sbc, sb16_driver, pcm_devclass, 0, 0);
911MODULE_DEPEND(snd_sb16, sound, SOUND_MINVER, SOUND_PREFVER, SOUND_MAXVER);
912MODULE_DEPEND(snd_sb16, snd_sbc, 1, 1, 1);
913MODULE_VERSION(snd_sb16, 1);
914