sb16.c revision 50733
1/*
2 * Copyright (c) 1999 Cameron Grant <gandalf@vilnya.demon.co.uk>
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 * $FreeBSD: head/sys/dev/sound/isa/sb16.c 50733 1999-09-01 06:58:27Z peter $
32 */
33
34#include <dev/pcm/sound.h>
35#if NPCM > 0
36
37#define __SB_MIXER_C__	/* XXX warning... */
38#include  <dev/pcm/isa/sb.h>
39
40/* channel interface */
41static void *sbchan_init(void *devinfo, snd_dbuf *b, pcm_channel *c, int dir);
42static int sbchan_setdir(void *data, int dir);
43static int sbchan_setformat(void *data, u_int32_t format);
44static int sbchan_setspeed(void *data, u_int32_t speed);
45static int sbchan_setblocksize(void *data, u_int32_t blocksize);
46static int sbchan_trigger(void *data, int go);
47static int sbchan_getptr(void *data);
48static pcmchan_caps *sbchan_getcaps(void *data);
49
50static pcmchan_caps sb_playcaps = {
51	4000, 22050,
52	AFMT_U8,
53	AFMT_U8
54};
55
56static pcmchan_caps sb_reccaps = {
57	4000, 13000,
58	AFMT_U8,
59	AFMT_U8
60};
61
62static pcmchan_caps sbpro_playcaps = {
63	4000, 45000,
64	AFMT_STEREO | AFMT_U8,
65	AFMT_STEREO | AFMT_U8
66};
67
68static pcmchan_caps sbpro_reccaps = {
69	4000, 15000,
70	AFMT_STEREO | AFMT_U8,
71	AFMT_STEREO | AFMT_U8
72};
73
74static pcmchan_caps sb16_playcaps = {
75	5000, 45000,
76	AFMT_STEREO | AFMT_S16_LE,
77	AFMT_STEREO | AFMT_S16_LE
78};
79
80static pcmchan_caps sb16_reccaps = {
81	5000, 45000,
82	AFMT_STEREO | AFMT_U8,
83	AFMT_STEREO | AFMT_U8
84};
85
86static pcmchan_caps ess_playcaps = {
87	5000, 49000,
88	AFMT_STEREO | AFMT_U8 | AFMT_S16_LE,
89	AFMT_STEREO | AFMT_S16_LE
90};
91
92static pcmchan_caps ess_reccaps = {
93	5000, 49000,
94	AFMT_STEREO | AFMT_U8 | AFMT_S16_LE,
95	AFMT_STEREO | AFMT_S16_LE
96};
97
98static pcm_channel sb_chantemplate = {
99	sbchan_init,
100	sbchan_setdir,
101	sbchan_setformat,
102	sbchan_setspeed,
103	sbchan_setblocksize,
104	sbchan_trigger,
105	sbchan_getptr,
106	sbchan_getcaps,
107};
108
109#define PLAIN_SB16(x) ((((x)->bd_flags) & (BD_F_SB16|BD_F_SB16X)) == BD_F_SB16)
110
111struct sb_info;
112
113struct sb_chinfo {
114	struct sb_info *parent;
115	pcm_channel *channel;
116	snd_dbuf *buffer;
117	int dir;
118	u_int32_t fmt;
119};
120
121struct sb_info {
122    	struct resource *io_base;	/* I/O address for the board */
123    	int		     io_rid;
124    	struct resource *irq;
125    	int		     irq_rid;
126    	struct resource *drq1; /* play */
127    	int		     drq1_rid;
128    	struct resource *drq2; /* rec */
129    	int		     drq2_rid;
130    	bus_dma_tag_t    parent_dmat;
131
132    	int dma16, dma8;
133    	int bd_id;
134    	u_long bd_flags;       /* board-specific flags */
135    	struct sb_chinfo pch, rch;
136};
137
138static int sb_rd(struct sb_info *sb, int reg);
139static void sb_wr(struct sb_info *sb, int reg, u_int8_t val);
140static int sb_dspready(struct sb_info *sb);
141static int sb_cmd(struct sb_info *sb, u_char val);
142static int sb_cmd1(struct sb_info *sb, u_char cmd, int val);
143static int sb_cmd2(struct sb_info *sb, u_char cmd, int val);
144static u_int sb_get_byte(struct sb_info *sb);
145static int ess_write(struct sb_info *sb, u_char reg, int val);
146static int ess_read(struct sb_info *sb, u_char reg);
147
148/*
149 * in the SB, there is a set of indirect "mixer" registers with
150 * address at offset 4, data at offset 5
151 */
152static void sb_setmixer(struct sb_info *sb, u_int port, u_int value);
153static int sb_getmixer(struct sb_info *sb, u_int port);
154
155static void sb_intr(void *arg);
156static int sb_init(device_t dev, struct sb_info *sb);
157static int sb_reset_dsp(struct sb_info *sb);
158
159static int sb_format(struct sb_chinfo *ch, u_int32_t format);
160static int sb_speed(struct sb_chinfo *ch, int speed);
161static int sb_start(struct sb_chinfo *ch);
162static int sb_stop(struct sb_chinfo *ch);
163
164static int sbmix_init(snd_mixer *m);
165static int sbmix_set(snd_mixer *m, unsigned dev, unsigned left, unsigned right);
166static int sbmix_setrecsrc(snd_mixer *m, u_int32_t src);
167
168static snd_mixer sb_mixer = {
169    "SoundBlaster mixer",
170    sbmix_init,
171    sbmix_set,
172    sbmix_setrecsrc,
173};
174
175static devclass_t pcm_devclass;
176
177/*
178 * Common code for the midi and pcm functions
179 *
180 * sb_cmd write a single byte to the CMD port.
181 * sb_cmd1 write a CMD + 1 byte arg
182 * sb_cmd2 write a CMD + 2 byte arg
183 * sb_get_byte returns a single byte from the DSP data port
184 *
185 * ess_write is actually sb_cmd1
186 * ess_read access ext. regs via sb_cmd(0xc0, reg) followed by sb_get_byte
187 */
188
189static int
190port_rd(struct resource *port, int off)
191{
192	return bus_space_read_1(rman_get_bustag(port),
193				rman_get_bushandle(port),
194				off);
195}
196
197static void
198port_wr(struct resource *port, int off, u_int8_t data)
199{
200	return bus_space_write_1(rman_get_bustag(port),
201				 rman_get_bushandle(port),
202				 off, data);
203}
204
205static int
206sb_rd(struct sb_info *sb, int reg)
207{
208	return port_rd(sb->io_base, reg);
209}
210
211static void
212sb_wr(struct sb_info *sb, int reg, u_int8_t val)
213{
214	port_wr(sb->io_base, reg, val);
215}
216
217static int
218sb_dspready(struct sb_info *sb)
219{
220	return ((sb_rd(sb, SBDSP_STATUS) & 0x80) == 0);
221}
222
223static int
224sb_dspwr(struct sb_info *sb, u_char val)
225{
226    	int  i;
227
228    	for (i = 0; i < 1000; i++) {
229		if (sb_dspready(sb)) {
230	    		sb_wr(sb, SBDSP_CMD, val);
231	    		return 1;
232		}
233		if (i > 10) DELAY((i > 100)? 1000 : 10);
234    	}
235    	printf("sb_dspwr(0x%02x) timed out.\n", val);
236    	return 0;
237}
238
239static int
240sb_cmd(struct sb_info *sb, u_char val)
241{
242#if 0
243	printf("sb_cmd: %x\n", val);
244#endif
245    	return sb_dspwr(sb, val);
246}
247
248static int
249sb_cmd1(struct sb_info *sb, u_char cmd, int val)
250{
251#if 0
252    	printf("sb_cmd1: %x, %x\n", cmd, val);
253#endif
254    	if (sb_dspwr(sb, cmd)) {
255		return sb_dspwr(sb, val & 0xff);
256    	} else return 0;
257}
258
259static int
260sb_cmd2(struct sb_info *sb, u_char cmd, int val)
261{
262#if 0
263    	printf("sb_cmd2: %x, %x\n", cmd, val);
264#endif
265    	if (sb_dspwr(sb, cmd)) {
266		return sb_dspwr(sb, val & 0xff) &&
267		       sb_dspwr(sb, (val >> 8) & 0xff);
268    	} else return 0;
269}
270
271/*
272 * in the SB, there is a set of indirect "mixer" registers with
273 * address at offset 4, data at offset 5
274 */
275static void
276sb_setmixer(struct sb_info *sb, u_int port, u_int value)
277{
278    	u_long   flags;
279
280    	flags = spltty();
281    	sb_wr(sb, SB_MIX_ADDR, (u_char) (port & 0xff)); /* Select register */
282    	DELAY(10);
283    	sb_wr(sb, SB_MIX_DATA, (u_char) (value & 0xff));
284    	DELAY(10);
285    	splx(flags);
286}
287
288static int
289sb_getmixer(struct sb_info *sb, u_int port)
290{
291    	int val;
292    	u_long flags;
293
294    	flags = spltty();
295    	sb_wr(sb, SB_MIX_ADDR, (u_char) (port & 0xff)); /* Select register */
296    	DELAY(10);
297    	val = sb_rd(sb, SB_MIX_DATA);
298    	DELAY(10);
299    	splx(flags);
300
301    	return val;
302}
303
304static u_int
305sb_get_byte(struct sb_info *sb)
306{
307    	int i;
308
309    	for (i = 1000; i > 0; i--) {
310		if (sb_rd(sb, DSP_DATA_AVAIL) & 0x80)
311			return sb_rd(sb, DSP_READ);
312		else
313			DELAY(20);
314    	}
315    	return 0xffff;
316}
317
318static int
319ess_write(struct sb_info *sb, u_char reg, int val)
320{
321    	return sb_cmd1(sb, reg, val);
322}
323
324static int
325ess_read(struct sb_info *sb, u_char reg)
326{
327    	return (sb_cmd(sb, 0xc0) && sb_cmd(sb, reg))? sb_get_byte(sb) : 0xffff;
328}
329
330static int
331sb_reset_dsp(struct sb_info *sb)
332{
333    	sb_wr(sb, SBDSP_RST, 3);
334    	DELAY(100);
335    	sb_wr(sb, SBDSP_RST, 0);
336    	if (sb_get_byte(sb) != 0xAA) {
337        	DEB(printf("sb_reset_dsp 0x%lx failed\n",
338			   rman_get_start(d->io_base)));
339		return ENXIO;	/* Sorry */
340    	}
341    	if (sb->bd_flags & BD_F_ESS) sb_cmd(sb, 0xc6);
342    	return 0;
343}
344
345static void
346sb_release_resources(struct sb_info *sb, device_t dev)
347{
348    	/* should we bus_teardown_intr here? */
349    	if (sb->irq) {
350		bus_release_resource(dev, SYS_RES_IRQ, sb->irq_rid, sb->irq);
351		sb->irq = 0;
352    	}
353    	if (sb->drq1) {
354		bus_release_resource(dev, SYS_RES_DRQ, sb->drq1_rid, sb->drq1);
355		sb->drq1 = 0;
356    	}
357    	if (sb->drq2) {
358		bus_release_resource(dev, SYS_RES_DRQ, sb->drq2_rid, sb->drq2);
359		sb->drq2 = 0;
360    	}
361    	if (sb->io_base) {
362		bus_release_resource(dev, SYS_RES_IOPORT, sb->io_rid,
363				     sb->io_base);
364		sb->io_base = 0;
365    	}
366    	free(sb, M_DEVBUF);
367}
368
369static int
370sb_alloc_resources(struct sb_info *sb, device_t dev)
371{
372	if (!sb->io_base)
373    		sb->io_base = bus_alloc_resource(dev, SYS_RES_IOPORT,
374						 &sb->io_rid, 0, ~0, 1,
375						 RF_ACTIVE);
376	if (!sb->irq)
377    		sb->irq = bus_alloc_resource(dev, SYS_RES_IRQ,
378					     &sb->irq_rid, 0, ~0, 1,
379					     RF_ACTIVE);
380	if (!sb->drq1)
381    		sb->drq1 = bus_alloc_resource(dev, SYS_RES_DRQ,
382					      &sb->drq1_rid, 0, ~0, 1,
383					      RF_ACTIVE);
384	if (!sb->drq2 && sb->drq2_rid > 0)
385        	sb->drq2 = bus_alloc_resource(dev, SYS_RES_DRQ,
386					      &sb->drq2_rid, 0, ~0, 1,
387					      RF_ACTIVE);
388
389    	if (sb->io_base && sb->drq1 && sb->irq) {
390		sb->dma8 = rman_get_start(sb->drq1);
391		isa_dma_acquire(sb->dma8);
392		isa_dmainit(sb->dma8, DSP_BUFFSIZE);
393
394		if (sb->drq2) {
395			sb->dma16 = rman_get_start(sb->drq2);
396			isa_dma_acquire(sb->dma16);
397			isa_dmainit(sb->dma16, DSP_BUFFSIZE);
398		} else sb->dma16 = sb->dma8;
399
400		if (sb->dma8 > sb->dma16) {
401			int tmp = sb->dma16;
402			sb->dma16 = sb->dma8;
403			sb->dma8 = tmp;
404		}
405		return 0;
406	} else return ENXIO;
407}
408
409static int
410sb_identify_board(device_t dev, struct sb_info *sb)
411{
412    	char *fmt = NULL;
413    	static char buf[64];
414
415    	sb_cmd(sb, DSP_CMD_GETVER);	/* Get version */
416    	sb->bd_id = (sb_get_byte(sb) << 8) | sb_get_byte(sb);
417
418    	switch (sb->bd_id >> 8) {
419    	case 1: /* old sound blaster has nothing... */
420    	case 2:
421		fmt = "SoundBlaster %d.%d" ; /* default */
422		break;
423
424    	case 3:
425		fmt = "SoundBlaster Pro %d.%d";
426		if (sb->bd_id == 0x301) {
427	    	int essver, rev;
428
429	    	/* Try to detect ESS chips. */
430	    	sb_cmd(sb, DSP_CMD_GETID);	/* Return ident. bytes. */
431	    	essver = (sb_get_byte(sb) << 8) | sb_get_byte(sb);
432	    	rev = essver & 0x000f;
433	    	essver &= 0xfff0;
434	    	if (essver == 0x4880) {
435			/* the ESS488 can be treated as an SBPRO */
436			fmt = "SoundBlaster Pro (ESS488 rev %d)";
437	    	} else if (essver == 0x6880) {
438			if (rev < 8) fmt = "SoundBlaster Pro (ESS688 rev %d)";
439			else fmt = "SoundBlaster Pro (ESS1868 rev %d)";
440	        	sb->bd_flags |= BD_F_ESS;
441	    	} else return ENXIO;
442	    	sb->bd_id &= 0xff00;
443	    	sb->bd_id |= ((essver & 0xf000) >> 8) | rev;
444		}
445		break;
446
447    	case 4:
448		sb->bd_flags |= BD_F_SB16;
449        	fmt = "SoundBlaster 16 %d.%d";
450		break;
451
452    	default:
453		device_printf(dev, "failed to get SB version (%x)\n",
454			      sb->bd_id);
455		return ENXIO;
456
457    	}
458    	if ((sb->bd_id >> 8) <= 4) snprintf(buf, sizeof buf, fmt,
459					    sb->bd_id >> 8, sb->bd_id & 0xff);
460    	else snprintf(buf, sizeof buf, fmt, sb->bd_id & 0x000f);
461    	device_set_desc_copy(dev, buf);
462    	return sb_reset_dsp(sb);
463}
464
465static int
466sb_init(device_t dev, struct sb_info *sb)
467{
468    	int x, irq;
469
470    	sb->bd_flags &= ~BD_F_MIX_MASK;
471    	/* do various initializations depending on board id. */
472    	switch (sb->bd_id >> 8) {
473    	case 1: /* old sound blaster has nothing... */
474		break;
475
476    	case 2:
477		sb->bd_flags |= BD_F_DUP_MIDI;
478		if (sb->bd_id > 0x200) sb->bd_flags |= BD_F_MIX_CT1335;
479		break;
480
481    	case 3:
482		sb->bd_flags |= BD_F_DUP_MIDI | BD_F_MIX_CT1345;
483		break;
484
485    	case 4:
486    		sb->bd_flags |= BD_F_SB16 | BD_F_MIX_CT1745;
487		if (sb->dma16 != sb->dma8) sb->bd_flags |= BD_F_DUPLEX;
488
489		/* soft irq/dma configuration */
490		x = -1;
491		irq = rman_get_start(sb->irq);
492		if      (irq == 5) x = 2;
493		else if (irq == 7) x = 4;
494		else if (irq == 9) x = 1;
495		else if (irq == 10) x = 8;
496		if (x == -1) device_printf(dev,
497					   "bad irq %d (5/7/9/10 valid)\n",
498					   irq);
499		else sb_setmixer(sb, IRQ_NR, x);
500		sb_setmixer(sb, DMA_NR, (1 << sb->dma16) | (1 << sb->dma8));
501		break;
502    	}
503    	return 0;
504}
505
506static int
507sb_probe(device_t dev)
508{
509    	snddev_info *d = device_get_softc(dev);
510    	struct sb_info *sb;
511    	int allocated, i;
512    	int error;
513
514    	if (isa_get_vendorid(dev)) return ENXIO; /* not yet */
515
516    	device_set_desc(dev, "SoundBlaster");
517    	bzero(d, sizeof *d);
518    	sb = (struct sb_info *)malloc(sizeof *sb, M_DEVBUF, M_NOWAIT);
519    	if (!sb) return ENXIO;
520    	bzero(sb, sizeof *sb);
521
522    	allocated = 0;
523    	sb->io_rid = 0;
524    	sb->io_base = bus_alloc_resource(dev, SYS_RES_IOPORT, &sb->io_rid,
525				    	0, ~0, 16, RF_ACTIVE);
526    	if (!sb->io_base) {
527		BVDDB(printf("sb_probe: no addr, trying (0x220, 0x240)\n"));
528		allocated = 1;
529		sb->io_rid = 0;
530		sb->io_base = bus_alloc_resource(dev, SYS_RES_IOPORT,
531						 &sb->io_rid, 0x220, 0x22f,
532						 16, RF_ACTIVE);
533		if (!sb->io_base) {
534		    	sb->io_base = bus_alloc_resource(dev, SYS_RES_IOPORT,
535							 &sb->io_rid, 0x240,
536							 0x24f, 16, RF_ACTIVE);
537		}
538    	}
539    	if (!sb->io_base) return ENXIO;
540
541    	error = sb_reset_dsp(sb);
542    	if (error) goto no;
543    	error = sb_identify_board(dev, sb);
544    	if (error) goto no;
545no:
546    	i = sb->io_rid;
547    	sb_release_resources(sb, dev);
548    	if (allocated) ISA_DELETE_RESOURCE(device_get_parent(dev), dev,
549					   SYS_RES_IOPORT, i);
550    	return error;
551}
552
553static int
554sb_doattach(device_t dev, struct sb_info *sb)
555{
556    	snddev_info *d = device_get_softc(dev);
557    	void *ih;
558    	int error;
559    	char status[SND_STATUSLEN];
560
561    	sb->irq_rid = 0;
562    	sb->drq1_rid = 0;
563    	sb->drq2_rid = 1;
564    	if (sb_alloc_resources(sb, dev)) goto no;
565    	error = sb_reset_dsp(sb);
566    	if (error) goto no;
567    	error = sb_identify_board(dev, sb);
568    	if (error) goto no;
569
570    	sb_init(dev, sb);
571    	mixer_init(d, &sb_mixer, sb);
572    	bus_setup_intr(dev, sb->irq, INTR_TYPE_TTY, sb_intr, sb, &ih);
573
574    	if (sb->bd_flags & BD_F_SB16)
575		pcm_setflags(dev, pcm_getflags(dev) | SD_F_EVILSB16);
576    	if (sb->dma16 == sb->dma8)
577		pcm_setflags(dev, pcm_getflags(dev) | SD_F_SIMPLEX);
578    	if (bus_dma_tag_create(/*parent*/NULL, /*alignment*/2, /*boundary*/0,
579			/*lowaddr*/BUS_SPACE_MAXADDR_24BIT,
580			/*highaddr*/BUS_SPACE_MAXADDR,
581			/*filter*/NULL, /*filterarg*/NULL,
582			/*maxsize*/DSP_BUFFSIZE, /*nsegments*/1,
583			/*maxsegz*/0x3ffff,
584			/*flags*/0, &sb->parent_dmat) != 0) {
585		device_printf(dev, "unable to create dma tag\n");
586		goto no;
587    	}
588
589    	snprintf(status, SND_STATUSLEN, "at io 0x%lx irq %ld drq %d",
590    	     	rman_get_start(sb->io_base), rman_get_start(sb->irq),
591		sb->dma8);
592    	if (sb->dma16 != sb->dma8) snprintf(status + strlen(status),
593    		SND_STATUSLEN - strlen(status), ":%d", sb->dma16);
594
595    	if (pcm_register(dev, sb, 1, 1)) goto no;
596    	pcm_addchan(dev, PCMDIR_REC, &sb_chantemplate, sb);
597    	pcm_addchan(dev, PCMDIR_PLAY, &sb_chantemplate, sb);
598    	pcm_setstatus(dev, status);
599
600    	return 0;
601
602no:
603    	sb_release_resources(sb, dev);
604    	return ENXIO;
605}
606
607static int
608sb_attach(device_t dev)
609{
610    	struct sb_info *sb;
611    	int flags = isa_get_flags(dev);
612
613    	if (flags & DV_F_DUAL_DMA) {
614        	ISA_SET_RESOURCE(device_get_parent(dev), dev, SYS_RES_DRQ, 1,
615    		         	flags & DV_F_DRQ_MASK, 1);
616    	}
617    	sb = (struct sb_info *)malloc(sizeof *sb, M_DEVBUF, M_NOWAIT);
618    	if (!sb) return ENXIO;
619    	bzero(sb, sizeof *sb);
620
621    	/* XXX in probe should set io resource to right val instead of this */
622    	sb->io_rid = 0;
623    	sb->io_base = bus_alloc_resource(dev, SYS_RES_IOPORT, &sb->io_rid,
624				    	0, ~0, 16, RF_ACTIVE);
625    	if (!sb->io_base) {
626		BVDDB(printf("sb_probe: no addr, trying (0x220, 0x240)\n"));
627		sb->io_rid = 0;
628		sb->io_base = bus_alloc_resource(dev, SYS_RES_IOPORT,
629						 &sb->io_rid, 0x220, 0x22f,
630						 16, RF_ACTIVE);
631		if (!sb->io_base) {
632	    		sb->io_base = bus_alloc_resource(dev, SYS_RES_IOPORT,
633							 &sb->io_rid, 0x240,
634							 0x24f, 16, RF_ACTIVE);
635		}
636    	}
637    	if (!sb->io_base) return ENXIO;
638
639    	return sb_doattach(dev, sb);
640}
641
642static device_method_t sb_methods[] = {
643	/* Device interface */
644	DEVMETHOD(device_probe,		sb_probe),
645	DEVMETHOD(device_attach,	sb_attach),
646
647	{ 0, 0 }
648};
649
650static driver_t sb_driver = {
651	"pcm",
652	sb_methods,
653	sizeof(snddev_info),
654};
655
656DRIVER_MODULE(sb, isa, sb_driver, pcm_devclass, 0, 0);
657
658static void
659sb_intr(void *arg)
660{
661    	struct sb_info *sb = (struct sb_info *)arg;
662    	int reason = 3, c;
663
664    	/*
665     	* SB < 4.0 is half duplex and has only 1 bit for int source,
666     	* so we fake it. SB 4.x (SB16) has the int source in a separate
667     	* register.
668     	* The Vibra16X has separate flags for 8 and 16 bit transfers, but
669     	* I have no idea how to tell capture from playback interrupts...
670     	*/
671    	if (sb->bd_flags & BD_F_SB16) {
672    		c = sb_getmixer(sb, IRQ_STAT);
673    		/* this tells us if the source is 8-bit or 16-bit dma. We
674     		* have to check the io channel to map it to read or write...
675     		*/
676    		reason = 0;
677    		if (c & 1) { /* 8-bit dma */
678			if (sb->pch.fmt & AFMT_U8) reason |= 1;
679			if (sb->rch.fmt & AFMT_U8) reason |= 2;
680    		}
681    		if (c & 2) { /* 16-bit dma */
682			if (sb->pch.fmt & AFMT_S16_LE) reason |= 1;
683			if (sb->rch.fmt & AFMT_S16_LE) reason |= 2;
684    		}
685    	} else c = 1;
686#if 0
687    	printf("sb_intr: reason=%d c=0x%x\n", reason, c);
688#endif
689    	if ((reason & 1) && (sb->pch.buffer->dl > 0))
690		chn_intr(sb->pch.channel);
691    	if ((reason & 2) && (sb->rch.buffer->dl > 0))
692		chn_intr(sb->rch.channel);
693    	if (c & 1) sb_rd(sb, DSP_DATA_AVAIL); /* 8-bit int ack */
694    	if (c & 2) sb_rd(sb, DSP_DATA_AVL16); /* 16-bit int ack */
695}
696
697static int
698sb_format(struct sb_chinfo *ch, u_int32_t format)
699{
700	struct sb_info *sb = ch->parent;
701	ch->fmt = format;
702	if (sb->bd_flags & BD_F_ESS) {
703		int play = (ch->dir == PCMDIR_PLAY)? 1 : 0;
704		int b16 = (ch->fmt & AFMT_S16_LE)? 1 : 0;
705		int stereo = (ch->fmt & AFMT_STEREO)? 1 : 0;
706
707	       	/* autoinit DMA mode */
708		ess_write(sb, 0xb8, 0x04 | play? 0x00 : 0x0a);
709		/* mono/stereo */
710		ess_write(sb, 0xa8,
711			  (ess_read(sb, 0xa8) & ~0x03) | stereo? 0x01 : 0x02);
712		/* demand mode, 4 bytes/xfer */
713		ess_write(sb, 0xb9, 2);
714		/* setup dac/adc */
715		if (play) ess_write(sb, 0xb6, b16? 0x00 : 0x80);
716		ess_write(sb, 0xb7, 0x51 | (b16? 0x20 : 0x00));
717		ess_write(sb, 0xb7,
718			  0x98 + (b16? 0x24 : 0x00) + (stereo? 0x00 : 0x38));
719		/* irq/drq control */
720		ess_write(sb, 0xb1, ess_read(sb, 0xb1) | 0x50);
721		ess_write(sb, 0xb2, ess_read(sb, 0xb1) | 0x50);
722	}
723	return 0;
724}
725
726static int
727sb_speed(struct sb_chinfo *ch, int speed)
728{
729    	struct sb_info *sb = ch->parent;
730    	int play = (ch->dir == PCMDIR_PLAY)? 1 : 0;
731    	int stereo = (ch->fmt & AFMT_STEREO)? 1 : 0;
732
733    	if (sb->bd_flags & BD_F_SB16) {
734		RANGE(speed, 5000, 45000);
735		sb_cmd(sb, 0x42 - play);
736    		sb_cmd(sb, speed >> 8);
737		sb_cmd(sb, speed & 0xff);
738    	} else if (sb->bd_flags & BD_F_ESS) {
739		int t;
740		RANGE(speed, 5000, 49000);
741		if (speed > 22000) {
742	    		t = (795500 + speed / 2) / speed;
743	    		speed = (795500 + t / 2) / t;
744	    		t = (256 - t) | 0x80;
745		} else {
746	    		t = (397700 + speed / 2) / speed;
747	    		speed = (397700 + t / 2) / t;
748	    		t = 128 - t;
749		}
750		ess_write(sb, 0xa1, t); /* set time constant */
751		t = 256 - 7160000 / (((speed * 9) / 20) * 82);
752		ess_write(sb, 0xa2, t);
753    	} else {
754		u_char tconst;
755		int max_speed = 45000, tmp;
756        	u_long flags;
757
758    		/* here enforce speed limitations - max 22050 on sb 1.x*/
759    		if (sb->bd_id <= 0x200) max_speed = 22050;
760
761    		/*
762     	 	* SB models earlier than SB Pro have low limit for the
763     	 	* input rate. Note that this is only for input, but since
764     	 	* we do not support separate values for rec & play....
765     	 	*/
766		if (!play) {
767    			if (sb->bd_id <= 0x200) max_speed = 13000;
768    			else if (sb->bd_id < 0x300) max_speed = 15000;
769		}
770    		RANGE(speed, 4000, max_speed);
771    		if (stereo) speed <<= 1;
772
773    		/*
774     	 	* Now the speed should be valid. Compute the value to be
775     	 	* programmed into the board.
776     	 	*/
777    		if (speed > 22050) { /* High speed mode on 2.01/3.xx */
778			tconst = (u_char)
779				((65536 - ((256000000 + speed / 2) / speed))
780				>> 8);
781			sb->bd_flags |= BD_F_HISPEED;
782			tmp = 65536 - (tconst << 8);
783			speed = (256000000 + tmp / 2) / tmp;
784    		} else {
785			sb->bd_flags &= ~BD_F_HISPEED;
786			tconst = (256 - ((1000000 + speed / 2) / speed)) & 0xff;
787			tmp = 256 - tconst;
788			speed = (1000000 + tmp / 2) / tmp;
789    		}
790		flags = spltty();
791		sb_cmd1(sb, 0x40, tconst); /* set time constant */
792		splx(flags);
793    		if (stereo) speed >>= 1;
794    	}
795    	return speed;
796}
797
798static int
799sb_start(struct sb_chinfo *ch)
800{
801	struct sb_info *sb = ch->parent;
802    	int play = (ch->dir == PCMDIR_PLAY)? 1 : 0;
803    	int b16 = (ch->fmt & AFMT_S16_LE)? 1 : 0;
804    	int stereo = (ch->fmt & AFMT_STEREO)? 1 : 0;
805	int l = ch->buffer->dl;
806	u_char i1, i2 = 0;
807
808	if (b16) l >>= 1;
809	l--;
810	if (play) sb_cmd(sb, DSP_CMD_SPKON);
811	if (sb->bd_flags & BD_F_SB16) {
812	    i1 = DSP_F16_AUTO | DSP_F16_FIFO_ON |
813	         (play? DSP_F16_DAC : DSP_F16_ADC);
814	    i1 |= (b16 && (sb->bd_flags & BD_F_DUPLEX))? DSP_DMA16 : DSP_DMA8;
815	    i2 = (stereo? DSP_F16_STEREO : 0) | (b16? DSP_F16_SIGNED : 0);
816	    sb_cmd(sb, i1);
817	    sb_cmd2(sb, i2, l);
818	} else if (sb->bd_flags & BD_F_ESS) {
819		ess_write(sb, 0xa4, l);
820		ess_write(sb, 0xa5, l >> 8);
821		ess_write(sb, 0xb8, ess_read(sb, 0xb8) | (play? 0x05 : 0x0f));
822	} else {
823	    if (sb->bd_flags & BD_F_HISPEED) i1 = play? 0x90 : 0x98;
824	    else i1 = play? 0x1c : 0x2c;
825	    sb_setmixer(sb, 0x0e, stereo? 2 : 0);
826	    /* an ESS extension -- they can do 16 bits */
827	    if (b16) i1 |= 1;
828	    sb_cmd2(sb, 0x48, l);
829	    sb_cmd(sb, i1);
830	}
831	sb->bd_flags |= BD_F_DMARUN << b16;
832	return 0;
833}
834
835static int
836sb_stop(struct sb_chinfo *ch)
837{
838	struct sb_info *sb = ch->parent;
839    	int play = (ch->dir == PCMDIR_PLAY)? 1 : 0;
840    	int b16 = (ch->fmt & AFMT_S16_LE)? 1 : 0;
841
842    	if (sb->bd_flags & BD_F_HISPEED) sb_reset_dsp(sb);
843	else {
844		sb_cmd(sb, b16? DSP_CMD_DMAPAUSE_16 : DSP_CMD_DMAPAUSE_8);
845	       /*
846		* The above seems to have the undocumented side effect of
847		* blocking the other side as well. If the other
848		* channel was active (SB16) I have to re-enable it :(
849		*/
850		if (sb->bd_flags & (BD_F_DMARUN << (1 - b16)))
851			sb_cmd(sb, b16? 0xd4 : 0xd6 );
852	}
853	if (play) sb_cmd(sb, DSP_CMD_SPKOFF); /* speaker off */
854	sb->bd_flags &= ~(BD_F_DMARUN << b16);
855	return 0;
856}
857
858/* channel interface */
859static void *
860sbchan_init(void *devinfo, snd_dbuf *b, pcm_channel *c, int dir)
861{
862	struct sb_info *sb = devinfo;
863	struct sb_chinfo *ch = (dir == PCMDIR_PLAY)? &sb->pch : &sb->rch;
864
865	ch->parent = sb;
866	ch->channel = c;
867	ch->buffer = b;
868	ch->buffer->bufsize = DSP_BUFFSIZE;
869	if (chn_allocbuf(ch->buffer, sb->parent_dmat) == -1) return NULL;
870	ch->buffer->chan = (dir == PCMDIR_PLAY)? sb->dma16 : sb->dma8;
871	return ch;
872}
873
874static int
875sbchan_setdir(void *data, int dir)
876{
877	struct sb_chinfo *ch = data;
878	ch->dir = dir;
879	return 0;
880}
881
882static int
883sbchan_setformat(void *data, u_int32_t format)
884{
885	struct sb_chinfo *ch = data;
886	sb_format(ch, format);
887	return 0;
888}
889
890static int
891sbchan_setspeed(void *data, u_int32_t speed)
892{
893	struct sb_chinfo *ch = data;
894	return sb_speed(ch, speed);
895}
896
897static int
898sbchan_setblocksize(void *data, u_int32_t blocksize)
899{
900	return blocksize;
901}
902
903static int
904sbchan_trigger(void *data, int go)
905{
906	struct sb_chinfo *ch = data;
907	buf_isadma(ch->buffer, go);
908	if (go == PCMTRIG_START) sb_start(ch); else sb_stop(ch);
909	return 0;
910}
911
912static int
913sbchan_getptr(void *data)
914{
915	struct sb_chinfo *ch = data;
916	return buf_isadmaptr(ch->buffer);
917}
918
919static pcmchan_caps *
920sbchan_getcaps(void *data)
921{
922	struct sb_chinfo *ch = data;
923	int p = (ch->dir == PCMDIR_PLAY)? 1 : 0;
924	if (ch->parent->bd_flags & BD_F_ESS)
925		return p? &ess_playcaps : &ess_reccaps;
926	else if (ch->parent->bd_id <= 0x200)
927		return p? &sb_playcaps : &sb_reccaps;
928	else if (ch->parent->bd_id >= 0x400)
929		return p? &sb16_playcaps : &sb16_reccaps;
930	else
931		return p? &sbpro_playcaps : &sbpro_reccaps;
932}
933
934/************************************************************/
935
936static int
937sbmix_init(snd_mixer *m)
938{
939    	struct sb_info *sb = mix_getdevinfo(m);
940
941    	switch (sb->bd_flags & BD_F_MIX_MASK) {
942    	case BD_F_MIX_CT1345: /* SB 3.0 has 1345 mixer */
943		mix_setdevs(m, SBPRO_MIXER_DEVICES);
944		mix_setrecdevs(m, SBPRO_RECORDING_DEVICES);
945		sb_setmixer(sb, 0, 1); /* reset mixer */
946		sb_setmixer(sb, MIC_VOL, 0x6); /* mic volume max */
947		sb_setmixer(sb, RECORD_SRC, 0x0); /* mic source */
948		sb_setmixer(sb, FM_VOL, 0x0); /* no midi */
949		break;
950
951    	case BD_F_MIX_CT1745: /* SB16 mixer ... */
952		mix_setdevs(m, SB16_MIXER_DEVICES);
953		mix_setrecdevs(m, SB16_RECORDING_DEVICES);
954		sb_setmixer(sb, 0x3c, 0x1f); /* make all output active */
955		sb_setmixer(sb, 0x3d, 0); /* make all inputs-l off */
956		sb_setmixer(sb, 0x3e, 0); /* make all inputs-r off */
957    	}
958    	return 0;
959}
960
961static int
962sbmix_set(snd_mixer *m, unsigned dev, unsigned left, unsigned right)
963{
964    	struct sb_info *sb = mix_getdevinfo(m);
965    	int regoffs;
966    	u_char   val;
967    	mixer_tab *iomap;
968
969    	switch (sb->bd_flags & BD_F_MIX_MASK) {
970    	case BD_F_MIX_CT1345:
971		iomap = &sbpro_mix;
972		break;
973
974    	case BD_F_MIX_CT1745:
975		iomap = &sb16_mix;
976		break;
977
978    	default:
979        	return -1;
980    	/* XXX how about the SG NX Pro, iomap = sgnxpro_mix */
981    	}
982    	regoffs = (*iomap)[dev][LEFT_CHN].regno;
983    	if (regoffs == 0) return -1;
984    	val = sb_getmixer(sb, regoffs);
985    	change_bits(iomap, &val, dev, LEFT_CHN, left);
986    	sb_setmixer(sb, regoffs, val);
987    	if ((*iomap)[dev][RIGHT_CHN].regno != regoffs) { /* Change register */
988        	regoffs = (*iomap)[dev][RIGHT_CHN].regno;
989        	if (regoffs != 0) {
990            		val = sb_getmixer(sb, regoffs); /* Read the new one */
991            		change_bits(iomap, &val, dev, RIGHT_CHN, right);
992            		sb_setmixer(sb, regoffs, val);
993        	} else right = left;
994    	} else right = left;
995    	return left | (right << 8);
996}
997
998static int
999sbmix_setrecsrc(snd_mixer *m, u_int32_t src)
1000{
1001    	struct sb_info *sb = mix_getdevinfo(m);
1002    	u_char recdev;
1003
1004    	switch (sb->bd_flags & BD_F_MIX_MASK) {
1005    	case BD_F_MIX_CT1345:
1006		if      (src == SOUND_MASK_LINE) 	recdev = 0x06;
1007		else if (src == SOUND_MASK_CD) 		recdev = 0x02;
1008		else { /* default: mic */
1009	    		src = SOUND_MASK_MIC;
1010	    		recdev = 0;
1011		}
1012		sb_setmixer(sb, RECORD_SRC, recdev |
1013			    (sb_getmixer(sb, RECORD_SRC) & ~0x07));
1014		break;
1015
1016    	case BD_F_MIX_CT1745: /* sb16 */
1017		recdev = 0;
1018		if (src & SOUND_MASK_MIC)   recdev |= 0x01; /* mono mic */
1019		if (src & SOUND_MASK_CD)    recdev |= 0x06; /* l+r cd */
1020		if (src & SOUND_MASK_LINE)  recdev |= 0x18; /* l+r line */
1021		if (src & SOUND_MASK_SYNTH) recdev |= 0x60; /* l+r midi */
1022		sb_setmixer(sb, SB16_IMASK_L, recdev);
1023		sb_setmixer(sb, SB16_IMASK_R, recdev);
1024		/*
1025	 	* since the same volume controls apply to the input and
1026	 	* output sections, the best approach to have a consistent
1027	 	* behaviour among cards would be to disable the output path
1028	 	* on devices which are used to record.
1029	 	* However, since users like to have feedback, we only disable
1030	 	* the mic -- permanently.
1031	 	*/
1032        	sb_setmixer(sb, SB16_OMASK, 0x1f & ~1);
1033		break;
1034    	}
1035    	return src;
1036}
1037
1038#if NPNP > 0
1039static int
1040sbpnp_probe(device_t dev)
1041{
1042    	char *s = NULL;
1043    	u_int32_t logical_id = isa_get_logicalid(dev);
1044
1045    	switch(logical_id) {
1046    	case 0x43008c0e: /* CTL0043 */
1047    	case 0x01008c0e: /* CTL0001 */
1048		s = "Vibra16X";
1049		break;
1050
1051    	case 0x31008c0e: /* CTL0031 */
1052    	case 0x41008c0e: /* CTL0041 */
1053    	case 0x42008c0e: /* CTL0042 */
1054    	case 0x45008c0e: /* CTL0045 */
1055		s = "SB16 PnP";
1056		break;
1057
1058    	case 0x01100000: /* @@@1001 */
1059    		s = "Avance Asound 110";
1060		break;
1061
1062    	case 0x01200000: /* @@@2001 */
1063        	s = "Avance Logic ALS120";
1064		break;
1065
1066    	case 0x68187316: /* ESS1868 */
1067		s = "ESS1868";
1068		break;
1069    	}
1070    	if (s) {
1071		device_set_desc(dev, s);
1072		return 0;
1073    	}
1074    	return ENXIO;
1075}
1076
1077static int
1078sbpnp_attach(device_t dev)
1079{
1080    	struct sb_info *sb;
1081    	u_int32_t vend_id = isa_get_vendorid(dev);
1082
1083    	sb = (struct sb_info *)malloc(sizeof *sb, M_DEVBUF, M_NOWAIT);
1084    	if (!sb) return ENXIO;
1085    	bzero(sb, sizeof *sb);
1086
1087    	switch(vend_id) {
1088    	case 0xf0008c0e:
1089    	case 0x10019305:
1090    	case 0x20019305:
1091		/* XXX add here the vend_id for other vibra16X cards... */
1092		sb->bd_flags = BD_F_SB16X;
1093    	}
1094    	return sb_doattach(dev, sb);
1095}
1096
1097static device_method_t sbpnp_methods[] = {
1098	/* Device interface */
1099	DEVMETHOD(device_probe,		sbpnp_probe),
1100	DEVMETHOD(device_attach,	sbpnp_attach),
1101
1102	{ 0, 0 }
1103};
1104
1105static driver_t sbpnp_driver = {
1106	"pcm",
1107	sbpnp_methods,
1108	sizeof(snddev_info),
1109};
1110
1111DRIVER_MODULE(sbpnp, isa, sbpnp_driver, pcm_devclass, 0, 0);
1112
1113#endif /* NPNP > 0 */
1114
1115#endif /* NPCM > 0 */
1116
1117
1118