xref: /freebsd/sys/dev/sound/pci/es137x.c (revision 17d6c636720d00f77e5d098daf4c278f89d84f7b)
1 /*
2  * Support the ENSONIQ AudioPCI board and Creative Labs SoundBlaster PCI
3  * boards based on the ES1370, ES1371 and ES1373 chips.
4  *
5  * Copyright (c) 1999 Russell Cattelan <cattelan@thebarn.com>
6  * Copyright (c) 1999 Cameron Grant <gandalf@vilnya.demon.co.uk>
7  * Copyright (c) 1998 by Joachim Kuebart. All rights reserved.
8  *
9  * Redistribution and use in source and binary forms, with or without
10  * modification, are permitted provided that the following conditions
11  * are met:
12  *
13  * 1. Redistributions of source code must retain the above copyright
14  *    notice, this list of conditions and the following disclaimer.
15  *
16  * 2. Redistributions in binary form must reproduce the above copyright
17  *    notice, this list of conditions and the following disclaimer in
18  *    the documentation and/or other materials provided with the
19  *    distribution.
20  *
21  * 3. All advertising materials mentioning features or use of this
22  *    software must display the following acknowledgement:
23  *	This product includes software developed by Joachim Kuebart.
24  *
25  * 4. The name of the author may not be used to endorse or promote
26  *    products derived from this software without specific prior
27  *    written permission.
28  *
29  * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED
30  * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
31  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
32  * DISCLAIMED.	IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT,
33  * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
34  * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
35  * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
36  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
37  * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
38  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
39  * OF THE POSSIBILITY OF SUCH DAMAGE.
40  */
41 
42 /*
43  * Part of this code was heavily inspired by the linux driver from
44  * Thomas Sailer (sailer@ife.ee.ethz.ch)
45  * Just about everything has been touched and reworked in some way but
46  * the all the underlying sequences/timing/register values are from
47  * Thomas' code.
48  *
49 */
50 
51 #include <dev/sound/pcm/sound.h>
52 #include <dev/sound/pcm/ac97.h>
53 #include <dev/sound/pci/es137x.h>
54 
55 #include <pci/pcireg.h>
56 #include <pci/pcivar.h>
57 
58 #include <sys/sysctl.h>
59 
60 #include "mixer_if.h"
61 
62 SND_DECLARE_FILE("$FreeBSD$");
63 
64 static int debug = 0;
65 SYSCTL_INT(_debug, OID_AUTO, es_debug, CTLFLAG_RW, &debug, 0, "");
66 
67 #define MEM_MAP_REG 0x14
68 
69 /* PCI IDs of supported chips */
70 #define ES1370_PCI_ID 0x50001274
71 #define ES1371_PCI_ID 0x13711274
72 #define ES1371_PCI_ID2 0x13713274
73 #define CT5880_PCI_ID 0x58801274
74 
75 #define ES1371REV_ES1371_A  0x02
76 #define ES1371REV_ES1371_B  0x09
77 
78 #define ES1371REV_ES1373_8  0x08
79 #define ES1371REV_ES1373_A  0x04
80 #define ES1371REV_ES1373_B  0x06
81 
82 #define ES1371REV_CT5880_A  0x07
83 
84 #define CT5880REV_CT5880_C  0x02
85 #define CT5880REV_CT5880_D  0x03
86 
87 #define ES_DEFAULT_BUFSZ 4096
88 
89 /* device private data */
90 struct es_info;
91 
92 struct es_chinfo {
93 	struct es_info *parent;
94 	struct pcm_channel *channel;
95 	struct snd_dbuf *buffer;
96 	int dir, num;
97 	u_int32_t fmt, blksz, bufsz;
98 };
99 
100 struct es_info {
101 	bus_space_tag_t st;
102 	bus_space_handle_t sh;
103 	bus_dma_tag_t	parent_dmat;
104 
105 	struct resource *reg, *irq;
106 	int regtype, regid, irqid;
107 	void *ih;
108 
109 	device_t dev;
110 	int num;
111 	unsigned int bufsz;
112 
113 	/* Contents of board's registers */
114 	u_long		ctrl;
115 	u_long		sctrl;
116 	struct es_chinfo pch, rch;
117 };
118 
119 /* -------------------------------------------------------------------- */
120 
121 /* prototypes */
122 static void     es_intr(void *);
123 
124 static u_int	es1371_wait_src_ready(struct es_info *);
125 static void	es1371_src_write(struct es_info *, u_short, unsigned short);
126 static u_int	es1371_adc_rate(struct es_info *, u_int, int);
127 static u_int	es1371_dac_rate(struct es_info *, u_int, int);
128 static int	es1371_init(struct es_info *, device_t);
129 static int      es1370_init(struct es_info *);
130 static int      es1370_wrcodec(struct es_info *, u_char, u_char);
131 
132 static u_int32_t es_playfmt[] = {
133 	AFMT_U8,
134 	AFMT_STEREO | AFMT_U8,
135 	AFMT_S16_LE,
136 	AFMT_STEREO | AFMT_S16_LE,
137 	0
138 };
139 static struct pcmchan_caps es_playcaps = {4000, 48000, es_playfmt, 0};
140 
141 static u_int32_t es_recfmt[] = {
142 	AFMT_U8,
143 	AFMT_STEREO | AFMT_U8,
144 	AFMT_S16_LE,
145 	AFMT_STEREO | AFMT_S16_LE,
146 	0
147 };
148 static struct pcmchan_caps es_reccaps = {4000, 48000, es_recfmt, 0};
149 
150 static const struct {
151 	unsigned        volidx:4;
152 	unsigned        left:4;
153 	unsigned        right:4;
154 	unsigned        stereo:1;
155 	unsigned        recmask:13;
156 	unsigned        avail:1;
157 }       mixtable[SOUND_MIXER_NRDEVICES] = {
158 	[SOUND_MIXER_VOLUME]	= { 0, 0x0, 0x1, 1, 0x0000, 1 },
159 	[SOUND_MIXER_PCM] 	= { 1, 0x2, 0x3, 1, 0x0400, 1 },
160 	[SOUND_MIXER_SYNTH]	= { 2, 0x4, 0x5, 1, 0x0060, 1 },
161 	[SOUND_MIXER_CD]	= { 3, 0x6, 0x7, 1, 0x0006, 1 },
162 	[SOUND_MIXER_LINE]	= { 4, 0x8, 0x9, 1, 0x0018, 1 },
163 	[SOUND_MIXER_LINE1]	= { 5, 0xa, 0xb, 1, 0x1800, 1 },
164 	[SOUND_MIXER_LINE2]	= { 6, 0xc, 0x0, 0, 0x0100, 1 },
165 	[SOUND_MIXER_LINE3]	= { 7, 0xd, 0x0, 0, 0x0200, 1 },
166 	[SOUND_MIXER_MIC]	= { 8, 0xe, 0x0, 0, 0x0001, 1 },
167 	[SOUND_MIXER_OGAIN]	= { 9, 0xf, 0x0, 0, 0x0000, 1 }
168 };
169 
170 /* -------------------------------------------------------------------- */
171 /* The es1370 mixer interface */
172 
173 static int
174 es1370_mixinit(struct snd_mixer *m)
175 {
176 	int i;
177 	u_int32_t v;
178 
179 	v = 0;
180 	for (i = 0; i < SOUND_MIXER_NRDEVICES; i++)
181 		if (mixtable[i].avail) v |= (1 << i);
182 	mix_setdevs(m, v);
183 	v = 0;
184 	for (i = 0; i < SOUND_MIXER_NRDEVICES; i++)
185 		if (mixtable[i].recmask) v |= (1 << i);
186 	mix_setrecdevs(m, v);
187 	return 0;
188 }
189 
190 static int
191 es1370_mixset(struct snd_mixer *m, unsigned dev, unsigned left, unsigned right)
192 {
193 	int l, r, rl, rr;
194 
195 	if (!mixtable[dev].avail) return -1;
196 	l = left;
197 	r = mixtable[dev].stereo? right : l;
198 	if (mixtable[dev].left == 0xf) {
199 		rl = (l < 2)? 0x80 : 7 - (l - 2) / 14;
200 	} else {
201 		rl = (l < 10)? 0x80 : 15 - (l - 10) / 6;
202 	}
203 	if (mixtable[dev].stereo) {
204 		rr = (r < 10)? 0x80 : 15 - (r - 10) / 6;
205 		es1370_wrcodec(mix_getdevinfo(m), mixtable[dev].right, rr);
206 	}
207 	es1370_wrcodec(mix_getdevinfo(m), mixtable[dev].left, rl);
208 	return l | (r << 8);
209 }
210 
211 static int
212 es1370_mixsetrecsrc(struct snd_mixer *m, u_int32_t src)
213 {
214 	int i, j = 0;
215 
216 	if (src == 0) src = 1 << SOUND_MIXER_MIC;
217 	src &= mix_getrecdevs(m);
218 	for (i = 0; i < SOUND_MIXER_NRDEVICES; i++)
219 		if ((src & (1 << i)) != 0) j |= mixtable[i].recmask;
220 
221 	es1370_wrcodec(mix_getdevinfo(m), CODEC_LIMIX1, j & 0x55);
222 	es1370_wrcodec(mix_getdevinfo(m), CODEC_RIMIX1, j & 0xaa);
223 	es1370_wrcodec(mix_getdevinfo(m), CODEC_LIMIX2, (j >> 8) & 0x17);
224 	es1370_wrcodec(mix_getdevinfo(m), CODEC_RIMIX2, (j >> 8) & 0x0f);
225 	es1370_wrcodec(mix_getdevinfo(m), CODEC_OMIX1, 0x7f);
226 	es1370_wrcodec(mix_getdevinfo(m), CODEC_OMIX2, 0x3f);
227 	return src;
228 }
229 
230 static kobj_method_t es1370_mixer_methods[] = {
231     	KOBJMETHOD(mixer_init,		es1370_mixinit),
232     	KOBJMETHOD(mixer_set,		es1370_mixset),
233     	KOBJMETHOD(mixer_setrecsrc,	es1370_mixsetrecsrc),
234 	{ 0, 0 }
235 };
236 MIXER_DECLARE(es1370_mixer);
237 
238 /* -------------------------------------------------------------------- */
239 
240 static int
241 es1370_wrcodec(struct es_info *es, u_char i, u_char data)
242 {
243 	int		wait = 100;	/* 100 msec timeout */
244 
245 	do {
246 		if ((bus_space_read_4(es->st, es->sh, ES1370_REG_STATUS) &
247 		      STAT_CSTAT) == 0) {
248 			bus_space_write_2(es->st, es->sh, ES1370_REG_CODEC,
249 				((u_short)i << CODEC_INDEX_SHIFT) | data);
250 			return 0;
251 		}
252 		DELAY(1000);
253 	} while (--wait);
254 	printf("pcm: es1370_wrcodec timed out\n");
255 	return -1;
256 }
257 
258 /* -------------------------------------------------------------------- */
259 
260 /* channel interface */
261 static void *
262 eschan_init(kobj_t obj, void *devinfo, struct snd_dbuf *b, struct pcm_channel *c, int dir)
263 {
264 	struct es_info *es = devinfo;
265 	struct es_chinfo *ch = (dir == PCMDIR_PLAY)? &es->pch : &es->rch;
266 
267 	ch->parent = es;
268 	ch->channel = c;
269 	ch->buffer = b;
270 	ch->bufsz = es->bufsz;
271 	ch->blksz = ch->bufsz / 2;
272 	ch->num = ch->parent->num++;
273 	if (sndbuf_alloc(ch->buffer, es->parent_dmat, ch->bufsz) == -1) return NULL;
274 	return ch;
275 }
276 
277 static int
278 eschan_setdir(kobj_t obj, void *data, int dir)
279 {
280 	struct es_chinfo *ch = data;
281 	struct es_info *es = ch->parent;
282 
283 	if (dir == PCMDIR_PLAY) {
284 		bus_space_write_1(es->st, es->sh, ES1370_REG_MEMPAGE, ES1370_REG_DAC2_FRAMEADR >> 8);
285 		bus_space_write_4(es->st, es->sh, ES1370_REG_DAC2_FRAMEADR & 0xff, vtophys(sndbuf_getbuf(ch->buffer)));
286 		bus_space_write_4(es->st, es->sh, ES1370_REG_DAC2_FRAMECNT & 0xff, (ch->bufsz >> 2) - 1);
287 	} else {
288 		bus_space_write_1(es->st, es->sh, ES1370_REG_MEMPAGE, ES1370_REG_ADC_FRAMEADR >> 8);
289 		bus_space_write_4(es->st, es->sh, ES1370_REG_ADC_FRAMEADR & 0xff, vtophys(sndbuf_getbuf(ch->buffer)));
290 		bus_space_write_4(es->st, es->sh, ES1370_REG_ADC_FRAMECNT & 0xff, (ch->bufsz >> 2) - 1);
291 	}
292 	ch->dir = dir;
293 	return 0;
294 }
295 
296 static int
297 eschan_setformat(kobj_t obj, void *data, u_int32_t format)
298 {
299 	struct es_chinfo *ch = data;
300 	struct es_info *es = ch->parent;
301 
302 	if (ch->dir == PCMDIR_PLAY) {
303 		es->sctrl &= ~SCTRL_P2FMT;
304 		if (format & AFMT_S16_LE) es->sctrl |= SCTRL_P2SEB;
305 		if (format & AFMT_STEREO) es->sctrl |= SCTRL_P2SMB;
306 	} else {
307 		es->sctrl &= ~SCTRL_R1FMT;
308 		if (format & AFMT_S16_LE) es->sctrl |= SCTRL_R1SEB;
309 		if (format & AFMT_STEREO) es->sctrl |= SCTRL_R1SMB;
310 	}
311 	bus_space_write_4(es->st, es->sh, ES1370_REG_SERIAL_CONTROL, es->sctrl);
312 	ch->fmt = format;
313 	return 0;
314 }
315 
316 static int
317 eschan1370_setspeed(kobj_t obj, void *data, u_int32_t speed)
318 {
319 	struct es_chinfo *ch = data;
320 	struct es_info *es = ch->parent;
321 
322 	es->ctrl &= ~CTRL_PCLKDIV;
323 	es->ctrl |= DAC2_SRTODIV(speed) << CTRL_SH_PCLKDIV;
324 	bus_space_write_4(es->st, es->sh, ES1370_REG_CONTROL, es->ctrl);
325 	/* rec/play speeds locked together - should indicate in flags */
326 	return speed; /* XXX calc real speed */
327 }
328 
329 static int
330 eschan1371_setspeed(kobj_t obj, void *data, u_int32_t speed)
331 {
332   	struct es_chinfo *ch = data;
333   	struct es_info *es = ch->parent;
334 
335 	if (ch->dir == PCMDIR_PLAY) {
336   		return es1371_dac_rate(es, speed, 3 - ch->num); /* play */
337 	} else {
338   		return es1371_adc_rate(es, speed, 1); /* record */
339 	}
340 }
341 
342 static int
343 eschan_setblocksize(kobj_t obj, void *data, u_int32_t blocksize)
344 {
345   	struct es_chinfo *ch = data;
346 
347 	ch->blksz = blocksize;
348 	ch->bufsz = ch->blksz * 2;
349 	sndbuf_resize(ch->buffer, 2, ch->blksz);
350 
351 	return ch->blksz;
352 }
353 
354 static int
355 eschan_trigger(kobj_t obj, void *data, int go)
356 {
357 	struct es_chinfo *ch = data;
358 	struct es_info *es = ch->parent;
359 	unsigned cnt;
360 
361 	if (go == PCMTRIG_EMLDMAWR || go == PCMTRIG_EMLDMARD)
362 		return 0;
363 
364 	cnt = (ch->blksz / sndbuf_getbps(ch->buffer)) - 1;
365 
366 	if (ch->dir == PCMDIR_PLAY) {
367 		if (go == PCMTRIG_START) {
368 			int b = (ch->fmt & AFMT_S16_LE)? 2 : 1;
369 			es->ctrl |= CTRL_DAC2_EN;
370 			es->sctrl &= ~(SCTRL_P2ENDINC | SCTRL_P2STINC | SCTRL_P2LOOPSEL | SCTRL_P2PAUSE | SCTRL_P2DACSEN);
371 			es->sctrl |= SCTRL_P2INTEN | (b << SCTRL_SH_P2ENDINC);
372 			bus_space_write_4(es->st, es->sh, ES1370_REG_DAC2_SCOUNT, cnt);
373 			/* start at beginning of buffer */
374 			bus_space_write_4(es->st, es->sh, ES1370_REG_MEMPAGE, ES1370_REG_DAC2_FRAMECNT >> 8);
375 			bus_space_write_4(es->st, es->sh, ES1370_REG_DAC2_FRAMECNT & 0xff, (ch->bufsz >> 2) - 1);
376 		} else es->ctrl &= ~CTRL_DAC2_EN;
377 	} else {
378 		if (go == PCMTRIG_START) {
379 			es->ctrl |= CTRL_ADC_EN;
380 			es->sctrl &= ~SCTRL_R1LOOPSEL;
381 			es->sctrl |= SCTRL_R1INTEN;
382 			bus_space_write_4(es->st, es->sh, ES1370_REG_ADC_SCOUNT, cnt);
383 			/* start at beginning of buffer */
384 			bus_space_write_4(es->st, es->sh, ES1370_REG_MEMPAGE, ES1370_REG_ADC_FRAMECNT >> 8);
385 			bus_space_write_4(es->st, es->sh, ES1370_REG_ADC_FRAMECNT & 0xff, (ch->bufsz >> 2) - 1);
386 		} else es->ctrl &= ~CTRL_ADC_EN;
387 	}
388 	bus_space_write_4(es->st, es->sh, ES1370_REG_SERIAL_CONTROL, es->sctrl);
389 	bus_space_write_4(es->st, es->sh, ES1370_REG_CONTROL, es->ctrl);
390 	return 0;
391 }
392 
393 static int
394 eschan_getptr(kobj_t obj, void *data)
395 {
396 	struct es_chinfo *ch = data;
397 	struct es_info *es = ch->parent;
398 	u_int32_t reg, cnt;
399 
400 	if (ch->dir == PCMDIR_PLAY)
401 		reg = ES1370_REG_DAC2_FRAMECNT;
402 	else
403 		reg = ES1370_REG_ADC_FRAMECNT;
404 
405 	bus_space_write_4(es->st, es->sh, ES1370_REG_MEMPAGE, reg >> 8);
406 	cnt = bus_space_read_4(es->st, es->sh, reg & 0x000000ff) >> 16;
407 	/* cnt is longwords */
408 	return cnt << 2;
409 }
410 
411 static struct pcmchan_caps *
412 eschan_getcaps(kobj_t obj, void *data)
413 {
414 	struct es_chinfo *ch = data;
415 	return (ch->dir == PCMDIR_PLAY)? &es_playcaps : &es_reccaps;
416 }
417 
418 static kobj_method_t eschan1370_methods[] = {
419     	KOBJMETHOD(channel_init,		eschan_init),
420     	KOBJMETHOD(channel_setdir,		eschan_setdir),
421     	KOBJMETHOD(channel_setformat,		eschan_setformat),
422     	KOBJMETHOD(channel_setspeed,		eschan1370_setspeed),
423     	KOBJMETHOD(channel_setblocksize,	eschan_setblocksize),
424     	KOBJMETHOD(channel_trigger,		eschan_trigger),
425     	KOBJMETHOD(channel_getptr,		eschan_getptr),
426     	KOBJMETHOD(channel_getcaps,		eschan_getcaps),
427 	{ 0, 0 }
428 };
429 CHANNEL_DECLARE(eschan1370);
430 
431 static kobj_method_t eschan1371_methods[] = {
432     	KOBJMETHOD(channel_init,		eschan_init),
433     	KOBJMETHOD(channel_setdir,		eschan_setdir),
434     	KOBJMETHOD(channel_setformat,		eschan_setformat),
435     	KOBJMETHOD(channel_setspeed,		eschan1371_setspeed),
436     	KOBJMETHOD(channel_setblocksize,	eschan_setblocksize),
437     	KOBJMETHOD(channel_trigger,		eschan_trigger),
438     	KOBJMETHOD(channel_getptr,		eschan_getptr),
439     	KOBJMETHOD(channel_getcaps,		eschan_getcaps),
440 	{ 0, 0 }
441 };
442 CHANNEL_DECLARE(eschan1371);
443 
444 /* -------------------------------------------------------------------- */
445 /* The interrupt handler */
446 static void
447 es_intr(void *p)
448 {
449 	struct es_info *es = p;
450 	unsigned	intsrc, sctrl;
451 
452 	intsrc = bus_space_read_4(es->st, es->sh, ES1370_REG_STATUS);
453 	if ((intsrc & STAT_INTR) == 0) return;
454 
455 	sctrl = es->sctrl;
456 	if (intsrc & STAT_ADC)  sctrl &= ~SCTRL_R1INTEN;
457 	if (intsrc & STAT_DAC1)	sctrl &= ~SCTRL_P1INTEN;
458 	if (intsrc & STAT_DAC2)	sctrl &= ~SCTRL_P2INTEN;
459 
460 	bus_space_write_4(es->st, es->sh, ES1370_REG_SERIAL_CONTROL, sctrl);
461 	bus_space_write_4(es->st, es->sh, ES1370_REG_SERIAL_CONTROL, es->sctrl);
462 
463 	if (intsrc & STAT_ADC) chn_intr(es->rch.channel);
464 	if (intsrc & STAT_DAC1);
465 	if (intsrc & STAT_DAC2)	chn_intr(es->pch.channel);
466 }
467 
468 /* ES1370 specific */
469 static int
470 es1370_init(struct es_info *es)
471 {
472 	es->ctrl = CTRL_CDC_EN | CTRL_SERR_DIS |
473 		(DAC2_SRTODIV(DSP_DEFAULT_SPEED) << CTRL_SH_PCLKDIV);
474 	bus_space_write_4(es->st, es->sh, ES1370_REG_CONTROL, es->ctrl);
475 
476 	es->sctrl = 0;
477 	bus_space_write_4(es->st, es->sh, ES1370_REG_SERIAL_CONTROL, es->sctrl);
478 
479 	es1370_wrcodec(es, CODEC_RES_PD, 3);/* No RST, PD */
480 	es1370_wrcodec(es, CODEC_CSEL, 0);	/* CODEC ADC and CODEC DAC use
481 					         * {LR,B}CLK2 and run off the LRCLK2
482 					         * PLL; program DAC_SYNC=0!  */
483 	es1370_wrcodec(es, CODEC_ADSEL, 0);/* Recording source is mixer */
484 	es1370_wrcodec(es, CODEC_MGAIN, 0);/* MIC amp is 0db */
485 
486 	return 0;
487 }
488 
489 /* ES1371 specific */
490 int
491 es1371_init(struct es_info *es, device_t dev)
492 {
493 	int idx;
494 	int devid = pci_get_devid(dev);
495 	int revid = pci_get_revid(dev);
496 
497 	if (debug > 0) printf("es_init\n");
498 
499 	es->num = 0;
500 	es->ctrl = 0;
501 	es->sctrl = 0;
502 	/* initialize the chips */
503 	if ((devid == ES1371_PCI_ID && revid == ES1371REV_ES1373_8) ||
504 	    (devid == ES1371_PCI_ID && revid == ES1371REV_CT5880_A) ||
505 	    (devid == CT5880_PCI_ID && revid == CT5880REV_CT5880_C) ||
506 	    (devid == CT5880_PCI_ID && revid == CT5880REV_CT5880_D)) {
507 		bus_space_write_4(es->st, es->sh, ES1370_REG_STATUS, 0x20000000);
508 		DELAY(20000);
509 		if (debug > 0) device_printf(dev, "ac97 2.1 enabled\n");
510 	} else { /* pre ac97 2.1 card */
511 		bus_space_write_4(es->st, es->sh, ES1370_REG_CONTROL, es->ctrl);
512 		if (debug > 0) device_printf(dev, "ac97 pre-2.1 enabled\n");
513 	}
514 	bus_space_write_4(es->st, es->sh, ES1370_REG_SERIAL_CONTROL, es->sctrl);
515 	bus_space_write_4(es->st, es->sh, ES1371_REG_LEGACY, 0);
516 	/* AC'97 warm reset to start the bitclk */
517 	bus_space_write_4(es->st, es->sh, ES1371_REG_LEGACY, es->ctrl | ES1371_SYNC_RES);
518 	DELAY(2000);
519 	bus_space_write_4(es->st, es->sh, ES1370_REG_SERIAL_CONTROL, es->ctrl);
520 	/* Init the sample rate converter */
521 	bus_space_write_4(es->st, es->sh, ES1371_REG_SMPRATE, ES1371_DIS_SRC);
522 	for (idx = 0; idx < 0x80; idx++)
523 		es1371_src_write(es, idx, 0);
524 	es1371_src_write(es, ES_SMPREG_DAC1 + ES_SMPREG_TRUNC_N,  16 << 4);
525 	es1371_src_write(es, ES_SMPREG_DAC1 + ES_SMPREG_INT_REGS, 16 << 10);
526 	es1371_src_write(es, ES_SMPREG_DAC2 + ES_SMPREG_TRUNC_N,  16 << 4);
527 	es1371_src_write(es, ES_SMPREG_DAC2 + ES_SMPREG_INT_REGS, 16 << 10);
528 	es1371_src_write(es, ES_SMPREG_VOL_ADC,                   1 << 12);
529 	es1371_src_write(es, ES_SMPREG_VOL_ADC  + 1,              1 << 12);
530 	es1371_src_write(es, ES_SMPREG_VOL_DAC1,                  1 << 12);
531 	es1371_src_write(es, ES_SMPREG_VOL_DAC1 + 1,              1 << 12);
532 	es1371_src_write(es, ES_SMPREG_VOL_DAC2,                  1 << 12);
533 	es1371_src_write(es, ES_SMPREG_VOL_DAC2 + 1,              1 << 12);
534 	es1371_adc_rate (es, 22050,                               1);
535 	es1371_dac_rate (es, 22050,                               1);
536 	es1371_dac_rate (es, 22050,                               2);
537 	/* WARNING:
538 	 * enabling the sample rate converter without properly programming
539 	 * its parameters causes the chip to lock up (the SRC busy bit will
540 	 * be stuck high, and I've found no way to rectify this other than
541 	 * power cycle)
542 	 */
543 	bus_space_write_4(es->st, es->sh, ES1371_REG_SMPRATE, 0);
544 
545 	return (0);
546 }
547 
548 /* -------------------------------------------------------------------- */
549 
550 static int
551 es1371_wrcd(kobj_t obj, void *s, int addr, u_int32_t data)
552 {
553     	int sl;
554     	unsigned t, x;
555 	struct es_info *es = (struct es_info*)s;
556 
557 	if (debug > 0) printf("wrcodec addr 0x%x data 0x%x\n", addr, data);
558 
559 	for (t = 0; t < 0x1000; t++)
560 	  	if (!(bus_space_read_4(es->st, es->sh,(ES1371_REG_CODEC & CODEC_WIP))))
561 			break;
562 	sl = spltty();
563 	/* save the current state for later */
564  	x = bus_space_read_4(es->st, es->sh, ES1371_REG_SMPRATE);
565 	/* enable SRC state data in SRC mux */
566 	bus_space_write_4(es->st, es->sh, ES1371_REG_SMPRATE,
567 	  	(es1371_wait_src_ready(s) &
568 	   	(ES1371_DIS_SRC | ES1371_DIS_P1 | ES1371_DIS_P2 | ES1371_DIS_R1)));
569 	/* wait for a SAFE time to write addr/data and then do it, dammit */
570 	for (t = 0; t < 0x1000; t++)
571 	  	if ((bus_space_read_4(es->st, es->sh, ES1371_REG_SMPRATE) & 0x00070000) == 0x00010000)
572 			break;
573 
574 	if (debug > 2)
575 		printf("one b_s_w: 0x%lx 0x%x 0x%x\n",
576 		       rman_get_start(es->reg), ES1371_REG_CODEC,
577 		       ((addr << CODEC_POADD_SHIFT) & CODEC_POADD_MASK) |
578 		       ((data << CODEC_PODAT_SHIFT) & CODEC_PODAT_MASK));
579 
580 	bus_space_write_4(es->st, es->sh,ES1371_REG_CODEC,
581 			  ((addr << CODEC_POADD_SHIFT) & CODEC_POADD_MASK) |
582 			  ((data << CODEC_PODAT_SHIFT) & CODEC_PODAT_MASK));
583 	/* restore SRC reg */
584 	es1371_wait_src_ready(s);
585 	if (debug > 2)
586 		printf("two b_s_w: 0x%lx 0x%x 0x%x\n",
587 		       rman_get_start(es->reg), ES1371_REG_SMPRATE, x);
588 	bus_space_write_4(es->st, es->sh, ES1371_REG_SMPRATE, x);
589 	splx(sl);
590 
591 	return 0;
592 }
593 
594 static int
595 es1371_rdcd(kobj_t obj, void *s, int addr)
596 {
597   	int sl;
598   	unsigned t, x;
599   	struct es_info *es = (struct es_info *)s;
600 
601   	if (debug > 0) printf("rdcodec addr 0x%x ... ", addr);
602 
603   	for (t = 0; t < 0x1000; t++)
604 		if (!(x = bus_space_read_4(es->st, es->sh, ES1371_REG_CODEC) & CODEC_WIP))
605 	  		break;
606    	if (debug > 0) printf("loop 1 t 0x%x x 0x%x ", t, x);
607 
608   	sl = spltty();
609 
610   	/* save the current state for later */
611   	x = bus_space_read_4(es->st, es->sh, ES1371_REG_SMPRATE);
612   	/* enable SRC state data in SRC mux */
613   	bus_space_write_4(es->st, es->sh, ES1371_REG_SMPRATE,
614 			  (es1371_wait_src_ready(s) &
615 			  (ES1371_DIS_SRC | ES1371_DIS_P1 | ES1371_DIS_P2 | ES1371_DIS_R1)));
616   	/* wait for a SAFE time to write addr/data and then do it, dammit */
617   	for (t = 0; t < 0x5000; t++)
618 		if ((x = bus_space_read_4(es->st, es->sh, ES1371_REG_SMPRATE) & 0x00070000) == 0x00010000)
619 	  		break;
620   	if (debug > 0) printf("loop 2 t 0x%x x 0x%x ", t, x);
621   	bus_space_write_4(es->st, es->sh, ES1371_REG_CODEC,
622 			  ((addr << CODEC_POADD_SHIFT) & CODEC_POADD_MASK) | CODEC_PORD);
623 
624   	/* restore SRC reg */
625   	es1371_wait_src_ready(s);
626   	bus_space_write_4(es->st, es->sh, ES1371_REG_SMPRATE, x);
627 
628   	splx(sl);
629 
630   	/* now wait for the stinkin' data (RDY) */
631   	for (t = 0; t < 0x1000; t++)
632 		if ((x = bus_space_read_4(es->st, es->sh, ES1371_REG_CODEC)) & CODEC_RDY)
633 	  		break;
634   	if (debug > 0) printf("loop 3 t 0x%x 0x%x ret 0x%x\n", t, x, ((x & CODEC_PIDAT_MASK) >> CODEC_PIDAT_SHIFT));
635   	return ((x & CODEC_PIDAT_MASK) >> CODEC_PIDAT_SHIFT);
636 }
637 
638 static kobj_method_t es1371_ac97_methods[] = {
639     	KOBJMETHOD(ac97_read,		es1371_rdcd),
640     	KOBJMETHOD(ac97_write,		es1371_wrcd),
641 	{ 0, 0 }
642 };
643 AC97_DECLARE(es1371_ac97);
644 
645 /* -------------------------------------------------------------------- */
646 
647 static u_int
648 es1371_src_read(struct es_info *es, u_short reg)
649 {
650   	unsigned int r;
651 
652   	r = es1371_wait_src_ready(es) &
653 		(ES1371_DIS_SRC | ES1371_DIS_P1 | ES1371_DIS_P2 | ES1371_DIS_R1);
654   	r |= ES1371_SRC_RAM_ADDRO(reg);
655   	bus_space_write_4(es->st, es->sh, ES1371_REG_SMPRATE,r);
656   	return ES1371_SRC_RAM_DATAI(es1371_wait_src_ready(es));
657 }
658 
659 static void
660 es1371_src_write(struct es_info *es, u_short reg, u_short data){
661 	u_int r;
662 
663 	r = es1371_wait_src_ready(es) &
664 		(ES1371_DIS_SRC | ES1371_DIS_P1 | ES1371_DIS_P2 | ES1371_DIS_R1);
665 	r |= ES1371_SRC_RAM_ADDRO(reg) |  ES1371_SRC_RAM_DATAO(data);
666 	/*	printf("es1371_src_write 0x%x 0x%x\n",ES1371_REG_SMPRATE,r | ES1371_SRC_RAM_WE); */
667 	bus_space_write_4(es->st, es->sh, ES1371_REG_SMPRATE, r | ES1371_SRC_RAM_WE);
668 }
669 
670 static u_int
671 es1371_adc_rate(struct es_info *es, u_int rate, int set)
672 {
673   	u_int n, truncm, freq, result;
674 
675   	if (rate > 48000) rate = 48000;
676   	if (rate < 4000) rate = 4000;
677   	n = rate / 3000;
678   	if ((1 << n) & ((1 << 15) | (1 << 13) | (1 << 11) | (1 << 9)))
679 		n--;
680   	truncm = (21 * n - 1) | 1;
681   	freq = ((48000UL << 15) / rate) * n;
682   	result = (48000UL << 15) / (freq / n);
683   	if (set) {
684 		if (rate >= 24000) {
685 	  		if (truncm > 239) truncm = 239;
686 	  		es1371_src_write(es, ES_SMPREG_ADC + ES_SMPREG_TRUNC_N,
687 				(((239 - truncm) >> 1) << 9) | (n << 4));
688 		} else {
689 	  		if (truncm > 119) truncm = 119;
690 	  		es1371_src_write(es, ES_SMPREG_ADC + ES_SMPREG_TRUNC_N,
691 				0x8000 | (((119 - truncm) >> 1) << 9) | (n << 4));
692 		}
693 		es1371_src_write(es, ES_SMPREG_ADC + ES_SMPREG_INT_REGS,
694 		 	(es1371_src_read(es, ES_SMPREG_ADC + ES_SMPREG_INT_REGS) &
695 		  	0x00ff) | ((freq >> 5) & 0xfc00));
696 		es1371_src_write(es, ES_SMPREG_ADC + ES_SMPREG_VFREQ_FRAC, freq & 0x7fff);
697 		es1371_src_write(es, ES_SMPREG_VOL_ADC, n << 8);
698 		es1371_src_write(es, ES_SMPREG_VOL_ADC + 1, n << 8);
699 	}
700 	return result;
701 }
702 
703 static u_int
704 es1371_dac_rate(struct es_info *es, u_int rate, int set)
705 {
706   	u_int freq, r, result, dac, dis;
707 
708   	if (rate > 48000) rate = 48000;
709   	if (rate < 4000) rate = 4000;
710   	freq = (rate << 15) / 3000;
711   	result = (freq * 3000) >> 15;
712   	if (set) {
713 		dac = (set == 1)? ES_SMPREG_DAC1 : ES_SMPREG_DAC2;
714 		dis = (set == 1)? ES1371_DIS_P2 : ES1371_DIS_P1;
715 
716 		r = (es1371_wait_src_ready(es) & (ES1371_DIS_SRC | ES1371_DIS_P1 | ES1371_DIS_P2 | ES1371_DIS_R1));
717 		bus_space_write_4(es->st, es->sh, ES1371_REG_SMPRATE, r);
718 		es1371_src_write(es, dac + ES_SMPREG_INT_REGS,
719 			 	(es1371_src_read(es, dac + ES_SMPREG_INT_REGS) & 0x00ff) | ((freq >> 5) & 0xfc00));
720 		es1371_src_write(es, dac + ES_SMPREG_VFREQ_FRAC, freq & 0x7fff);
721 		r = (es1371_wait_src_ready(es) & (ES1371_DIS_SRC | dis | ES1371_DIS_R1));
722 		bus_space_write_4(es->st, es->sh, ES1371_REG_SMPRATE, r);
723   	}
724   	return result;
725 }
726 
727 static u_int
728 es1371_wait_src_ready(struct es_info *es)
729 {
730   	u_int t, r;
731 
732   	for (t = 0; t < 500; t++) {
733 		if (!((r = bus_space_read_4(es->st, es->sh, ES1371_REG_SMPRATE)) & ES1371_SRC_RAM_BUSY))
734 	  		return r;
735 		DELAY(1000);
736   	}
737   	printf("es1371: wait src ready timeout 0x%x [0x%x]\n", ES1371_REG_SMPRATE, r);
738   	return 0;
739 }
740 
741 /* -------------------------------------------------------------------- */
742 
743 /*
744  * Probe and attach the card
745  */
746 
747 static int
748 es_pci_probe(device_t dev)
749 {
750 	switch(pci_get_devid(dev)) {
751 	case ES1370_PCI_ID:
752 		device_set_desc(dev, "AudioPCI ES1370");
753 		return 0;
754 
755 	case ES1371_PCI_ID:
756 		switch(pci_get_revid(dev)) {
757 		case ES1371REV_ES1371_A:
758 			device_set_desc(dev, "AudioPCI ES1371-A");
759 			return 0;
760 
761 		case ES1371REV_ES1371_B:
762 			device_set_desc(dev, "AudioPCI ES1371-B");
763 			return 0;
764 
765 		case ES1371REV_ES1373_A:
766 			device_set_desc(dev, "AudioPCI ES1373-A");
767 			return 0;
768 
769 		case ES1371REV_ES1373_B:
770 			device_set_desc(dev, "AudioPCI ES1373-B");
771 			return 0;
772 
773 		case ES1371REV_ES1373_8:
774 			device_set_desc(dev, "AudioPCI ES1373-8");
775 			return 0;
776 
777 		case ES1371REV_CT5880_A:
778 			device_set_desc(dev, "Creative CT5880-A");
779 			return 0;
780 
781 		default:
782 			device_set_desc(dev, "AudioPCI ES1371-?");
783 			device_printf(dev, "unknown revision %d -- please report to cg@freebsd.org\n", pci_get_revid(dev));
784 			return 0;
785 		}
786 
787 	case ES1371_PCI_ID2:
788 		device_set_desc(dev, "Strange AudioPCI ES1371-? (vid=3274)");
789 		device_printf(dev, "unknown revision %d -- please report to cg@freebsd.org\n", pci_get_revid(dev));
790 		return 0;
791 
792 	case CT5880_PCI_ID:
793 		switch(pci_get_revid(dev)) {
794 		case CT5880REV_CT5880_C:
795 			device_set_desc(dev, "Creative CT5880-C");
796 			return 0;
797 
798 		case CT5880REV_CT5880_D:
799 			device_set_desc(dev, "Creative CT5880-D");
800 			return 0;
801 
802 		default:
803 			device_set_desc(dev, "Creative CT5880-?");
804 			device_printf(dev, "unknown revision %d -- please report to cg@freebsd.org\n", pci_get_revid(dev));
805 			return 0;
806 		}
807 
808 	default:
809 		return ENXIO;
810 	}
811 }
812 
813 static int
814 es_pci_attach(device_t dev)
815 {
816 	u_int32_t	data;
817 	struct es_info *es = 0;
818 	int		mapped;
819 	char		status[SND_STATUSLEN];
820 	struct ac97_info *codec = 0;
821 	kobj_class_t    ct = NULL;
822 
823 	if ((es = malloc(sizeof *es, M_DEVBUF, M_NOWAIT | M_ZERO)) == NULL) {
824 		device_printf(dev, "cannot allocate softc\n");
825 		return ENXIO;
826 	}
827 
828 	es->dev = dev;
829 	mapped = 0;
830 	data = pci_read_config(dev, PCIR_COMMAND, 2);
831 	data |= (PCIM_CMD_PORTEN|PCIM_CMD_MEMEN|PCIM_CMD_BUSMASTEREN);
832 	pci_write_config(dev, PCIR_COMMAND, data, 2);
833 	data = pci_read_config(dev, PCIR_COMMAND, 2);
834 	if (mapped == 0 && (data & PCIM_CMD_MEMEN)) {
835 		es->regid = MEM_MAP_REG;
836 		es->regtype = SYS_RES_MEMORY;
837 		es->reg = bus_alloc_resource(dev, es->regtype, &es->regid,
838 					 0, ~0, 1, RF_ACTIVE);
839 		if (es->reg) {
840 			es->st = rman_get_bustag(es->reg);
841 			es->sh = rman_get_bushandle(es->reg);
842 			mapped++;
843 		}
844 	}
845 	if (mapped == 0 && (data & PCIM_CMD_PORTEN)) {
846 		es->regid = PCIR_MAPS;
847 		es->regtype = SYS_RES_IOPORT;
848 		es->reg = bus_alloc_resource(dev, es->regtype, &es->regid,
849 					 0, ~0, 1, RF_ACTIVE);
850 		if (es->reg) {
851 			es->st = rman_get_bustag(es->reg);
852 			es->sh = rman_get_bushandle(es->reg);
853 			mapped++;
854 		}
855 	}
856 	if (mapped == 0) {
857 		device_printf(dev, "unable to map register space\n");
858 		goto bad;
859 	}
860 
861 	es->bufsz = pcm_getbuffersize(dev, 4096, ES_DEFAULT_BUFSZ, 65536);
862 
863 	if (pci_get_devid(dev) == ES1371_PCI_ID ||
864 	    pci_get_devid(dev) == ES1371_PCI_ID2 ||
865 	    pci_get_devid(dev) == CT5880_PCI_ID) {
866 		if(-1 == es1371_init(es, dev)) {
867 			device_printf(dev, "unable to initialize the card\n");
868 			goto bad;
869 		}
870 		codec = AC97_CREATE(dev, es, es1371_ac97);
871 	  	if (codec == NULL) goto bad;
872 	  	/* our init routine does everything for us */
873 	  	/* set to NULL; flag mixer_init not to run the ac97_init */
874 	  	/*	  ac97_mixer.init = NULL;  */
875 		if (mixer_init(dev, ac97_getmixerclass(), codec)) goto bad;
876 		ct = &eschan1371_class;
877 	} else if (pci_get_devid(dev) == ES1370_PCI_ID) {
878 	  	if (-1 == es1370_init(es)) {
879 			device_printf(dev, "unable to initialize the card\n");
880 			goto bad;
881 	  	}
882 	  	if (mixer_init(dev, &es1370_mixer_class, es)) goto bad;
883 		ct = &eschan1370_class;
884 	} else goto bad;
885 
886 	es->irqid = 0;
887 	es->irq = bus_alloc_resource(dev, SYS_RES_IRQ, &es->irqid,
888 				 0, ~0, 1, RF_ACTIVE | RF_SHAREABLE);
889 	if (!es->irq || snd_setup_intr(dev, es->irq, 0, es_intr, es, &es->ih)) {
890 		device_printf(dev, "unable to map interrupt\n");
891 		goto bad;
892 	}
893 
894 	if (bus_dma_tag_create(/*parent*/NULL, /*alignment*/2, /*boundary*/0,
895 		/*lowaddr*/BUS_SPACE_MAXADDR_32BIT,
896 		/*highaddr*/BUS_SPACE_MAXADDR,
897 		/*filter*/NULL, /*filterarg*/NULL,
898 		/*maxsize*/es->bufsz, /*nsegments*/1, /*maxsegz*/0x3ffff,
899 		/*flags*/0, &es->parent_dmat) != 0) {
900 		device_printf(dev, "unable to create dma tag\n");
901 		goto bad;
902 	}
903 
904 	snprintf(status, SND_STATUSLEN, "at %s 0x%lx irq %ld",
905 		 (es->regtype == SYS_RES_IOPORT)? "io" : "memory",
906 		 rman_get_start(es->reg), rman_get_start(es->irq));
907 
908 	if (pcm_register(dev, es, 1, 1)) goto bad;
909 	pcm_addchan(dev, PCMDIR_REC, ct, es);
910 	pcm_addchan(dev, PCMDIR_PLAY, ct, es);
911 	pcm_setstatus(dev, status);
912 
913 	return 0;
914 
915  bad:
916 	if (codec) ac97_destroy(codec);
917 	if (es->reg) bus_release_resource(dev, es->regtype, es->regid, es->reg);
918 	if (es->ih) bus_teardown_intr(dev, es->irq, es->ih);
919 	if (es->irq) bus_release_resource(dev, SYS_RES_IRQ, es->irqid, es->irq);
920 	if (es->parent_dmat) bus_dma_tag_destroy(es->parent_dmat);
921 	if (es) free(es, M_DEVBUF);
922 	return ENXIO;
923 }
924 
925 static int
926 es_pci_detach(device_t dev)
927 {
928 	int r;
929 	struct es_info *es;
930 
931 	r = pcm_unregister(dev);
932 	if (r)
933 		return r;
934 
935 	es = pcm_getdevinfo(dev);
936 	bus_release_resource(dev, es->regtype, es->regid, es->reg);
937 	bus_teardown_intr(dev, es->irq, es->ih);
938 	bus_release_resource(dev, SYS_RES_IRQ, es->irqid, es->irq);
939 	bus_dma_tag_destroy(es->parent_dmat);
940 	free(es, M_DEVBUF);
941 
942 	return 0;
943 }
944 
945 static device_method_t es_methods[] = {
946 	/* Device interface */
947 	DEVMETHOD(device_probe,		es_pci_probe),
948 	DEVMETHOD(device_attach,	es_pci_attach),
949 	DEVMETHOD(device_detach,	es_pci_detach),
950 
951 	{ 0, 0 }
952 };
953 
954 static driver_t es_driver = {
955 	"pcm",
956 	es_methods,
957 	PCM_SOFTC_SIZE,
958 };
959 
960 DRIVER_MODULE(snd_es137x, pci, es_driver, pcm_devclass, 0, 0);
961 MODULE_DEPEND(snd_es137x, snd_pcm, PCM_MINVER, PCM_PREFVER, PCM_MAXVER);
962 MODULE_VERSION(snd_es137x, 1);
963