1 /*-
2 * SPDX-License-Identifier: BSD-2-Clause
3 *
4 * Copyright (c) 1999 Seigo Tanimura
5 * All rights reserved.
6 *
7 * Portions of this source are based on cwcealdr.cpp and dhwiface.cpp in
8 * cwcealdr1.zip, the sample sources by Crystal Semiconductor.
9 * Copyright (c) 1996-1998 Crystal Semiconductor Corp.
10 *
11 * Redistribution and use in source and binary forms, with or without
12 * modification, are permitted provided that the following conditions
13 * are met:
14 * 1. Redistributions of source code must retain the above copyright
15 * notice, this list of conditions and the following disclaimer.
16 * 2. Redistributions in binary form must reproduce the above copyright
17 * notice, this list of conditions and the following disclaimer in the
18 * documentation and/or other materials provided with the distribution.
19 *
20 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
21 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
22 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
23 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
24 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
25 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
26 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
27 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
28 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
29 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
30 * SUCH DAMAGE.
31 */
32
33 #ifdef HAVE_KERNEL_OPTION_HEADERS
34 #include "opt_snd.h"
35 #endif
36
37 #include <dev/sound/pcm/sound.h>
38 #include <dev/sound/pcm/ac97.h>
39 #include <dev/sound/pci/csareg.h>
40 #include <dev/sound/pci/csavar.h>
41
42 #include <dev/pci/pcireg.h>
43 #include <dev/pci/pcivar.h>
44
45 /* Buffer size on dma transfer. Fixed for CS416x. */
46 #define CS461x_BUFFSIZE (4 * 1024)
47
48 #define GOF_PER_SEC 200
49
50 /* device private data */
51 struct csa_info;
52
53 struct csa_chinfo {
54 struct csa_info *parent;
55 struct pcm_channel *channel;
56 struct snd_dbuf *buffer;
57 int dir;
58 uint32_t fmt, spd;
59 int dma;
60 };
61
62 struct csa_info {
63 csa_res res; /* resource */
64 void *ih; /* Interrupt cookie */
65 bus_dma_tag_t parent_dmat; /* DMA tag */
66 struct csa_bridgeinfo *binfo; /* The state of the parent. */
67 struct csa_card *card;
68
69 int active;
70 /* Contents of board's registers */
71 unsigned long pfie;
72 unsigned long pctl;
73 unsigned long cctl;
74 struct csa_chinfo pch, rch;
75 uint32_t ac97[CS461x_AC97_NUMBER_RESTORE_REGS];
76 uint32_t ac97_powerdown;
77 uint32_t ac97_general_purpose;
78 };
79
80 /* -------------------------------------------------------------------- */
81
82 /* prototypes */
83 static int csa_init(struct csa_info *);
84 static void csa_intr(void *);
85 static void csa_setplaysamplerate(csa_res *resp, unsigned long ulInRate);
86 static void csa_setcapturesamplerate(csa_res *resp,
87 unsigned long ulOutRate);
88 static void csa_startplaydma(struct csa_info *csa);
89 static void csa_startcapturedma(struct csa_info *csa);
90 static void csa_stopplaydma(struct csa_info *csa);
91 static void csa_stopcapturedma(struct csa_info *csa);
92 static int csa_startdsp(csa_res *resp);
93 static int csa_stopdsp(csa_res *resp);
94 static int csa_allocres(struct csa_info *scp, device_t dev);
95 static void csa_releaseres(struct csa_info *scp, device_t dev);
96 static void csa_ac97_suspend(struct csa_info *csa);
97 static void csa_ac97_resume(struct csa_info *csa);
98
99 static uint32_t csa_playfmt[] = {
100 SND_FORMAT(AFMT_U8, 1, 0),
101 SND_FORMAT(AFMT_U8, 2, 0),
102 SND_FORMAT(AFMT_S8, 1, 0),
103 SND_FORMAT(AFMT_S8, 2, 0),
104 SND_FORMAT(AFMT_S16_LE, 1, 0),
105 SND_FORMAT(AFMT_S16_LE, 2, 0),
106 SND_FORMAT(AFMT_S16_BE, 1, 0),
107 SND_FORMAT(AFMT_S16_BE, 2, 0),
108 0
109 };
110 static struct pcmchan_caps csa_playcaps = {8000, 48000, csa_playfmt, 0};
111
112 static uint32_t csa_recfmt[] = {
113 SND_FORMAT(AFMT_S16_LE, 1, 0),
114 SND_FORMAT(AFMT_S16_LE, 2, 0),
115 0
116 };
117 static struct pcmchan_caps csa_reccaps = {11025, 48000, csa_recfmt, 0};
118
119 /* -------------------------------------------------------------------- */
120
121 static int
csa_active(struct csa_info * csa,int run)122 csa_active(struct csa_info *csa, int run)
123 {
124 int old;
125
126 old = csa->active;
127 csa->active += run;
128
129 if ((csa->active > 1) || (csa->active < -1))
130 csa->active = 0;
131 if (csa->card->active)
132 return (csa->card->active(!(csa->active && old)));
133
134 return 0;
135 }
136
137 /* -------------------------------------------------------------------- */
138 /* ac97 codec */
139
140 static int
csa_rdcd(kobj_t obj,void * devinfo,int regno)141 csa_rdcd(kobj_t obj, void *devinfo, int regno)
142 {
143 uint32_t data;
144 struct csa_info *csa = (struct csa_info *)devinfo;
145
146 csa_active(csa, 1);
147 if (csa_readcodec(&csa->res, regno + BA0_AC97_RESET, &data))
148 data = 0;
149 csa_active(csa, -1);
150
151 return data;
152 }
153
154 static int
csa_wrcd(kobj_t obj,void * devinfo,int regno,uint32_t data)155 csa_wrcd(kobj_t obj, void *devinfo, int regno, uint32_t data)
156 {
157 struct csa_info *csa = (struct csa_info *)devinfo;
158
159 csa_active(csa, 1);
160 csa_writecodec(&csa->res, regno + BA0_AC97_RESET, data);
161 csa_active(csa, -1);
162
163 return 0;
164 }
165
166 static kobj_method_t csa_ac97_methods[] = {
167 KOBJMETHOD(ac97_read, csa_rdcd),
168 KOBJMETHOD(ac97_write, csa_wrcd),
169 KOBJMETHOD_END
170 };
171 AC97_DECLARE(csa_ac97);
172
173 static void
csa_setplaysamplerate(csa_res * resp,unsigned long ulInRate)174 csa_setplaysamplerate(csa_res *resp, unsigned long ulInRate)
175 {
176 unsigned long ulTemp1, ulTemp2;
177 unsigned long ulPhiIncr;
178 unsigned long ulCorrectionPerGOF, ulCorrectionPerSec;
179 unsigned long ulOutRate;
180
181 ulOutRate = 48000;
182
183 /*
184 * Compute the values used to drive the actual sample rate conversion.
185 * The following formulas are being computed, using inline assembly
186 * since we need to use 64 bit arithmetic to compute the values:
187 *
188 * ulPhiIncr = floor((Fs,in * 2^26) / Fs,out)
189 * ulCorrectionPerGOF = floor((Fs,in * 2^26 - Fs,out * ulPhiIncr) /
190 * GOF_PER_SEC)
191 * ulCorrectionPerSec = Fs,in * 2^26 - Fs,out * phiIncr -
192 * GOF_PER_SEC * ulCorrectionPerGOF
193 *
194 * i.e.
195 *
196 * ulPhiIncr:ulOther = dividend:remainder((Fs,in * 2^26) / Fs,out)
197 * ulCorrectionPerGOF:ulCorrectionPerSec =
198 * dividend:remainder(ulOther / GOF_PER_SEC)
199 */
200 ulTemp1 = ulInRate << 16;
201 ulPhiIncr = ulTemp1 / ulOutRate;
202 ulTemp1 -= ulPhiIncr * ulOutRate;
203 ulTemp1 <<= 10;
204 ulPhiIncr <<= 10;
205 ulTemp2 = ulTemp1 / ulOutRate;
206 ulPhiIncr += ulTemp2;
207 ulTemp1 -= ulTemp2 * ulOutRate;
208 ulCorrectionPerGOF = ulTemp1 / GOF_PER_SEC;
209 ulTemp1 -= ulCorrectionPerGOF * GOF_PER_SEC;
210 ulCorrectionPerSec = ulTemp1;
211
212 /*
213 * Fill in the SampleRateConverter control block.
214 */
215 csa_writemem(resp, BA1_PSRC, ((ulCorrectionPerSec << 16) & 0xFFFF0000) | (ulCorrectionPerGOF & 0xFFFF));
216 csa_writemem(resp, BA1_PPI, ulPhiIncr);
217 }
218
219 static void
csa_setcapturesamplerate(csa_res * resp,unsigned long ulOutRate)220 csa_setcapturesamplerate(csa_res *resp, unsigned long ulOutRate)
221 {
222 unsigned long ulPhiIncr, ulCoeffIncr, ulTemp1, ulTemp2;
223 unsigned long ulCorrectionPerGOF, ulCorrectionPerSec, ulInitialDelay;
224 unsigned long dwFrameGroupLength, dwCnt;
225 unsigned long ulInRate;
226
227 ulInRate = 48000;
228
229 /*
230 * We can only decimate by up to a factor of 1/9th the hardware rate.
231 * Return an error if an attempt is made to stray outside that limit.
232 */
233 if((ulOutRate * 9) < ulInRate)
234 return;
235
236 /*
237 * We can not capture at at rate greater than the Input Rate (48000).
238 * Return an error if an attempt is made to stray outside that limit.
239 */
240 if(ulOutRate > ulInRate)
241 return;
242
243 /*
244 * Compute the values used to drive the actual sample rate conversion.
245 * The following formulas are being computed, using inline assembly
246 * since we need to use 64 bit arithmetic to compute the values:
247 *
248 * ulCoeffIncr = -floor((Fs,out * 2^23) / Fs,in)
249 * ulPhiIncr = floor((Fs,in * 2^26) / Fs,out)
250 * ulCorrectionPerGOF = floor((Fs,in * 2^26 - Fs,out * ulPhiIncr) /
251 * GOF_PER_SEC)
252 * ulCorrectionPerSec = Fs,in * 2^26 - Fs,out * phiIncr -
253 * GOF_PER_SEC * ulCorrectionPerGOF
254 * ulInitialDelay = ceil((24 * Fs,in) / Fs,out)
255 *
256 * i.e.
257 *
258 * ulCoeffIncr = neg(dividend((Fs,out * 2^23) / Fs,in))
259 * ulPhiIncr:ulOther = dividend:remainder((Fs,in * 2^26) / Fs,out)
260 * ulCorrectionPerGOF:ulCorrectionPerSec =
261 * dividend:remainder(ulOther / GOF_PER_SEC)
262 * ulInitialDelay = dividend(((24 * Fs,in) + Fs,out - 1) / Fs,out)
263 */
264 ulTemp1 = ulOutRate << 16;
265 ulCoeffIncr = ulTemp1 / ulInRate;
266 ulTemp1 -= ulCoeffIncr * ulInRate;
267 ulTemp1 <<= 7;
268 ulCoeffIncr <<= 7;
269 ulCoeffIncr += ulTemp1 / ulInRate;
270 ulCoeffIncr ^= 0xFFFFFFFF;
271 ulCoeffIncr++;
272 ulTemp1 = ulInRate << 16;
273 ulPhiIncr = ulTemp1 / ulOutRate;
274 ulTemp1 -= ulPhiIncr * ulOutRate;
275 ulTemp1 <<= 10;
276 ulPhiIncr <<= 10;
277 ulTemp2 = ulTemp1 / ulOutRate;
278 ulPhiIncr += ulTemp2;
279 ulTemp1 -= ulTemp2 * ulOutRate;
280 ulCorrectionPerGOF = ulTemp1 / GOF_PER_SEC;
281 ulTemp1 -= ulCorrectionPerGOF * GOF_PER_SEC;
282 ulCorrectionPerSec = ulTemp1;
283 ulInitialDelay = ((ulInRate * 24) + ulOutRate - 1) / ulOutRate;
284
285 /*
286 * Fill in the VariDecimate control block.
287 */
288 csa_writemem(resp, BA1_CSRC,
289 ((ulCorrectionPerSec << 16) & 0xFFFF0000) | (ulCorrectionPerGOF & 0xFFFF));
290 csa_writemem(resp, BA1_CCI, ulCoeffIncr);
291 csa_writemem(resp, BA1_CD,
292 (((BA1_VARIDEC_BUF_1 + (ulInitialDelay << 2)) << 16) & 0xFFFF0000) | 0x80);
293 csa_writemem(resp, BA1_CPI, ulPhiIncr);
294
295 /*
296 * Figure out the frame group length for the write back task. Basically,
297 * this is just the factors of 24000 (2^6*3*5^3) that are not present in
298 * the output sample rate.
299 */
300 dwFrameGroupLength = 1;
301 for(dwCnt = 2; dwCnt <= 64; dwCnt *= 2)
302 {
303 if(((ulOutRate / dwCnt) * dwCnt) !=
304 ulOutRate)
305 {
306 dwFrameGroupLength *= 2;
307 }
308 }
309 if(((ulOutRate / 3) * 3) !=
310 ulOutRate)
311 {
312 dwFrameGroupLength *= 3;
313 }
314 for(dwCnt = 5; dwCnt <= 125; dwCnt *= 5)
315 {
316 if(((ulOutRate / dwCnt) * dwCnt) !=
317 ulOutRate)
318 {
319 dwFrameGroupLength *= 5;
320 }
321 }
322
323 /*
324 * Fill in the WriteBack control block.
325 */
326 csa_writemem(resp, BA1_CFG1, dwFrameGroupLength);
327 csa_writemem(resp, BA1_CFG2, (0x00800000 | dwFrameGroupLength));
328 csa_writemem(resp, BA1_CCST, 0x0000FFFF);
329 csa_writemem(resp, BA1_CSPB, ((65536 * ulOutRate) / 24000));
330 csa_writemem(resp, (BA1_CSPB + 4), 0x0000FFFF);
331 }
332
333 static void
csa_startplaydma(struct csa_info * csa)334 csa_startplaydma(struct csa_info *csa)
335 {
336 csa_res *resp;
337 unsigned long ul;
338
339 if (!csa->pch.dma) {
340 resp = &csa->res;
341 ul = csa_readmem(resp, BA1_PCTL);
342 ul &= 0x0000ffff;
343 csa_writemem(resp, BA1_PCTL, ul | csa->pctl);
344 csa_writemem(resp, BA1_PVOL, 0x80008000);
345 csa->pch.dma = 1;
346 }
347 }
348
349 static void
csa_startcapturedma(struct csa_info * csa)350 csa_startcapturedma(struct csa_info *csa)
351 {
352 csa_res *resp;
353 unsigned long ul;
354
355 if (!csa->rch.dma) {
356 resp = &csa->res;
357 ul = csa_readmem(resp, BA1_CCTL);
358 ul &= 0xffff0000;
359 csa_writemem(resp, BA1_CCTL, ul | csa->cctl);
360 csa_writemem(resp, BA1_CVOL, 0x80008000);
361 csa->rch.dma = 1;
362 }
363 }
364
365 static void
csa_stopplaydma(struct csa_info * csa)366 csa_stopplaydma(struct csa_info *csa)
367 {
368 csa_res *resp;
369 unsigned long ul;
370
371 if (csa->pch.dma) {
372 resp = &csa->res;
373 ul = csa_readmem(resp, BA1_PCTL);
374 csa->pctl = ul & 0xffff0000;
375 csa_writemem(resp, BA1_PCTL, ul & 0x0000ffff);
376 csa_writemem(resp, BA1_PVOL, 0xffffffff);
377 csa->pch.dma = 0;
378
379 /*
380 * The bitwise pointer of the serial FIFO in the DSP
381 * seems to make an error upon starting or stopping the
382 * DSP. Clear the FIFO and correct the pointer if we
383 * are not capturing.
384 */
385 if (!csa->rch.dma) {
386 csa_clearserialfifos(resp);
387 csa_writeio(resp, BA0_SERBSP, 0);
388 }
389 }
390 }
391
392 static void
csa_stopcapturedma(struct csa_info * csa)393 csa_stopcapturedma(struct csa_info *csa)
394 {
395 csa_res *resp;
396 unsigned long ul;
397
398 if (csa->rch.dma) {
399 resp = &csa->res;
400 ul = csa_readmem(resp, BA1_CCTL);
401 csa->cctl = ul & 0x0000ffff;
402 csa_writemem(resp, BA1_CCTL, ul & 0xffff0000);
403 csa_writemem(resp, BA1_CVOL, 0xffffffff);
404 csa->rch.dma = 0;
405
406 /*
407 * The bitwise pointer of the serial FIFO in the DSP
408 * seems to make an error upon starting or stopping the
409 * DSP. Clear the FIFO and correct the pointer if we
410 * are not playing.
411 */
412 if (!csa->pch.dma) {
413 csa_clearserialfifos(resp);
414 csa_writeio(resp, BA0_SERBSP, 0);
415 }
416 }
417 }
418
419 static int
csa_startdsp(csa_res * resp)420 csa_startdsp(csa_res *resp)
421 {
422 int i;
423 unsigned long ul;
424
425 /*
426 * Set the frame timer to reflect the number of cycles per frame.
427 */
428 csa_writemem(resp, BA1_FRMT, 0xadf);
429
430 /*
431 * Turn on the run, run at frame, and DMA enable bits in the local copy of
432 * the SP control register.
433 */
434 csa_writemem(resp, BA1_SPCR, SPCR_RUN | SPCR_RUNFR | SPCR_DRQEN);
435
436 /*
437 * Wait until the run at frame bit resets itself in the SP control
438 * register.
439 */
440 ul = 0;
441 for (i = 0 ; i < 25 ; i++) {
442 /*
443 * Wait a little bit, so we don't issue PCI reads too frequently.
444 */
445 DELAY(50);
446 /*
447 * Fetch the current value of the SP status register.
448 */
449 ul = csa_readmem(resp, BA1_SPCR);
450
451 /*
452 * If the run at frame bit has reset, then stop waiting.
453 */
454 if((ul & SPCR_RUNFR) == 0)
455 break;
456 }
457 /*
458 * If the run at frame bit never reset, then return an error.
459 */
460 if((ul & SPCR_RUNFR) != 0)
461 return (EAGAIN);
462
463 return (0);
464 }
465
466 static int
csa_stopdsp(csa_res * resp)467 csa_stopdsp(csa_res *resp)
468 {
469 /*
470 * Turn off the run, run at frame, and DMA enable bits in
471 * the local copy of the SP control register.
472 */
473 csa_writemem(resp, BA1_SPCR, 0);
474
475 return (0);
476 }
477
478 static int
csa_setupchan(struct csa_chinfo * ch)479 csa_setupchan(struct csa_chinfo *ch)
480 {
481 struct csa_info *csa = ch->parent;
482 csa_res *resp = &csa->res;
483 unsigned long pdtc, tmp;
484
485 if (ch->dir == PCMDIR_PLAY) {
486 /* direction */
487 csa_writemem(resp, BA1_PBA, ch->buffer->buf_addr);
488
489 /* format */
490 csa->pfie = csa_readmem(resp, BA1_PFIE) & ~0x0000f03f;
491 if (!(ch->fmt & AFMT_SIGNED))
492 csa->pfie |= 0x8000;
493 if (ch->fmt & AFMT_BIGENDIAN)
494 csa->pfie |= 0x4000;
495 if (AFMT_CHANNEL(ch->fmt) < 2)
496 csa->pfie |= 0x2000;
497 if (ch->fmt & AFMT_8BIT)
498 csa->pfie |= 0x1000;
499 csa_writemem(resp, BA1_PFIE, csa->pfie);
500
501 tmp = 4;
502 if (ch->fmt & AFMT_16BIT)
503 tmp <<= 1;
504 if (AFMT_CHANNEL(ch->fmt) > 1)
505 tmp <<= 1;
506 tmp--;
507
508 pdtc = csa_readmem(resp, BA1_PDTC) & ~0x000001ff;
509 pdtc |= tmp;
510 csa_writemem(resp, BA1_PDTC, pdtc);
511
512 /* rate */
513 csa_setplaysamplerate(resp, ch->spd);
514 } else if (ch->dir == PCMDIR_REC) {
515 /* direction */
516 csa_writemem(resp, BA1_CBA, ch->buffer->buf_addr);
517
518 /* format */
519 csa_writemem(resp, BA1_CIE, (csa_readmem(resp, BA1_CIE) & ~0x0000003f) | 0x00000001);
520
521 /* rate */
522 csa_setcapturesamplerate(resp, ch->spd);
523 }
524 return 0;
525 }
526
527 /* -------------------------------------------------------------------- */
528 /* channel interface */
529
530 static void *
csachan_init(kobj_t obj,void * devinfo,struct snd_dbuf * b,struct pcm_channel * c,int dir)531 csachan_init(kobj_t obj, void *devinfo, struct snd_dbuf *b, struct pcm_channel *c, int dir)
532 {
533 struct csa_info *csa = devinfo;
534 struct csa_chinfo *ch = (dir == PCMDIR_PLAY)? &csa->pch : &csa->rch;
535
536 ch->parent = csa;
537 ch->channel = c;
538 ch->buffer = b;
539 ch->dir = dir;
540 if (sndbuf_alloc(ch->buffer, csa->parent_dmat, 0, CS461x_BUFFSIZE) != 0)
541 return NULL;
542 return ch;
543 }
544
545 static int
csachan_setformat(kobj_t obj,void * data,uint32_t format)546 csachan_setformat(kobj_t obj, void *data, uint32_t format)
547 {
548 struct csa_chinfo *ch = data;
549
550 ch->fmt = format;
551 return 0;
552 }
553
554 static uint32_t
csachan_setspeed(kobj_t obj,void * data,uint32_t speed)555 csachan_setspeed(kobj_t obj, void *data, uint32_t speed)
556 {
557 struct csa_chinfo *ch = data;
558
559 ch->spd = speed;
560 return ch->spd; /* XXX calc real speed */
561 }
562
563 static uint32_t
csachan_setblocksize(kobj_t obj,void * data,uint32_t blocksize)564 csachan_setblocksize(kobj_t obj, void *data, uint32_t blocksize)
565 {
566 return CS461x_BUFFSIZE / 2;
567 }
568
569 static int
csachan_trigger(kobj_t obj,void * data,int go)570 csachan_trigger(kobj_t obj, void *data, int go)
571 {
572 struct csa_chinfo *ch = data;
573 struct csa_info *csa = ch->parent;
574
575 if (!PCMTRIG_COMMON(go))
576 return 0;
577
578 if (go == PCMTRIG_START) {
579 csa_active(csa, 1);
580 csa_setupchan(ch);
581 if (ch->dir == PCMDIR_PLAY)
582 csa_startplaydma(csa);
583 else
584 csa_startcapturedma(csa);
585 } else {
586 if (ch->dir == PCMDIR_PLAY)
587 csa_stopplaydma(csa);
588 else
589 csa_stopcapturedma(csa);
590 csa_active(csa, -1);
591 }
592 return 0;
593 }
594
595 static uint32_t
csachan_getptr(kobj_t obj,void * data)596 csachan_getptr(kobj_t obj, void *data)
597 {
598 struct csa_chinfo *ch = data;
599 struct csa_info *csa = ch->parent;
600 csa_res *resp;
601 uint32_t ptr;
602
603 resp = &csa->res;
604
605 if (ch->dir == PCMDIR_PLAY) {
606 ptr = csa_readmem(resp, BA1_PBA) - ch->buffer->buf_addr;
607 if ((ch->fmt & AFMT_U8) != 0 || (ch->fmt & AFMT_S8) != 0)
608 ptr >>= 1;
609 } else {
610 ptr = csa_readmem(resp, BA1_CBA) - ch->buffer->buf_addr;
611 if ((ch->fmt & AFMT_U8) != 0 || (ch->fmt & AFMT_S8) != 0)
612 ptr >>= 1;
613 }
614
615 return (ptr);
616 }
617
618 static struct pcmchan_caps *
csachan_getcaps(kobj_t obj,void * data)619 csachan_getcaps(kobj_t obj, void *data)
620 {
621 struct csa_chinfo *ch = data;
622 return (ch->dir == PCMDIR_PLAY)? &csa_playcaps : &csa_reccaps;
623 }
624
625 static kobj_method_t csachan_methods[] = {
626 KOBJMETHOD(channel_init, csachan_init),
627 KOBJMETHOD(channel_setformat, csachan_setformat),
628 KOBJMETHOD(channel_setspeed, csachan_setspeed),
629 KOBJMETHOD(channel_setblocksize, csachan_setblocksize),
630 KOBJMETHOD(channel_trigger, csachan_trigger),
631 KOBJMETHOD(channel_getptr, csachan_getptr),
632 KOBJMETHOD(channel_getcaps, csachan_getcaps),
633 KOBJMETHOD_END
634 };
635 CHANNEL_DECLARE(csachan);
636
637 /* -------------------------------------------------------------------- */
638 /* The interrupt handler */
639 static void
csa_intr(void * p)640 csa_intr(void *p)
641 {
642 struct csa_info *csa = p;
643
644 if ((csa->binfo->hisr & HISR_VC0) != 0)
645 chn_intr(csa->pch.channel);
646 if ((csa->binfo->hisr & HISR_VC1) != 0)
647 chn_intr(csa->rch.channel);
648 }
649
650 /* -------------------------------------------------------------------- */
651
652 /*
653 * Probe and attach the card
654 */
655
656 static int
csa_init(struct csa_info * csa)657 csa_init(struct csa_info *csa)
658 {
659 csa_res *resp;
660
661 resp = &csa->res;
662
663 csa->pfie = 0;
664 csa_stopplaydma(csa);
665 csa_stopcapturedma(csa);
666
667 if (csa_startdsp(resp))
668 return (1);
669
670 /* Crank up the power on the DAC and ADC. */
671 csa_setplaysamplerate(resp, 8000);
672 csa_setcapturesamplerate(resp, 8000);
673 /* Set defaults */
674 csa_writeio(resp, BA0_EGPIODR, EGPIODR_GPOE0);
675 csa_writeio(resp, BA0_EGPIOPTR, EGPIOPTR_GPPT0);
676 /* Power up amplifier */
677 csa_writeio(resp, BA0_EGPIODR, csa_readio(resp, BA0_EGPIODR) |
678 EGPIODR_GPOE2);
679 csa_writeio(resp, BA0_EGPIOPTR, csa_readio(resp, BA0_EGPIOPTR) |
680 EGPIOPTR_GPPT2);
681
682 return 0;
683 }
684
685 /* Allocates resources. */
686 static int
csa_allocres(struct csa_info * csa,device_t dev)687 csa_allocres(struct csa_info *csa, device_t dev)
688 {
689 csa_res *resp;
690
691 resp = &csa->res;
692 if (resp->io == NULL) {
693 resp->io = bus_alloc_resource_any(dev, SYS_RES_MEMORY,
694 &resp->io_rid, RF_ACTIVE);
695 if (resp->io == NULL)
696 return (1);
697 }
698 if (resp->mem == NULL) {
699 resp->mem = bus_alloc_resource_any(dev, SYS_RES_MEMORY,
700 &resp->mem_rid, RF_ACTIVE);
701 if (resp->mem == NULL)
702 return (1);
703 }
704 if (resp->irq == NULL) {
705 resp->irq = bus_alloc_resource_any(dev, SYS_RES_IRQ,
706 &resp->irq_rid, RF_ACTIVE | RF_SHAREABLE);
707 if (resp->irq == NULL)
708 return (1);
709 }
710 if (bus_dma_tag_create(/*parent*/bus_get_dma_tag(dev),
711 /*alignment*/CS461x_BUFFSIZE,
712 /*boundary*/CS461x_BUFFSIZE,
713 /*lowaddr*/BUS_SPACE_MAXADDR_32BIT,
714 /*highaddr*/BUS_SPACE_MAXADDR,
715 /*filter*/NULL, /*filterarg*/NULL,
716 /*maxsize*/CS461x_BUFFSIZE, /*nsegments*/1, /*maxsegz*/0x3ffff,
717 /*flags*/0, /*lockfunc*/NULL, /*lockarg*/NULL,
718 &csa->parent_dmat) != 0)
719 return (1);
720
721 return (0);
722 }
723
724 /* Releases resources. */
725 static void
csa_releaseres(struct csa_info * csa,device_t dev)726 csa_releaseres(struct csa_info *csa, device_t dev)
727 {
728 csa_res *resp;
729
730 KASSERT(csa != NULL, ("called with bogus resource structure"));
731
732 resp = &csa->res;
733 if (resp->irq != NULL) {
734 if (csa->ih)
735 bus_teardown_intr(dev, resp->irq, csa->ih);
736 bus_release_resource(dev, SYS_RES_IRQ, resp->irq_rid, resp->irq);
737 resp->irq = NULL;
738 }
739 if (resp->io != NULL) {
740 bus_release_resource(dev, SYS_RES_MEMORY, resp->io_rid, resp->io);
741 resp->io = NULL;
742 }
743 if (resp->mem != NULL) {
744 bus_release_resource(dev, SYS_RES_MEMORY, resp->mem_rid, resp->mem);
745 resp->mem = NULL;
746 }
747 if (csa->parent_dmat != NULL) {
748 bus_dma_tag_destroy(csa->parent_dmat);
749 csa->parent_dmat = NULL;
750 }
751
752 free(csa, M_DEVBUF);
753 }
754
755 static int
pcmcsa_probe(device_t dev)756 pcmcsa_probe(device_t dev)
757 {
758 char *s;
759
760 /* The parent device has already been probed. */
761
762 if (device_get_ivars(dev) == NULL)
763 return (ENXIO);
764
765 s = "CS461x PCM Audio";
766
767 device_set_desc(dev, s);
768 return (0);
769 }
770
771 static int
pcmcsa_attach(device_t dev)772 pcmcsa_attach(device_t dev)
773 {
774 struct csa_info *csa;
775 csa_res *resp;
776 char status[SND_STATUSLEN];
777 struct ac97_info *codec;
778
779 csa = malloc(sizeof(*csa), M_DEVBUF, M_WAITOK | M_ZERO);
780 csa->binfo = device_get_ivars(dev);
781 /*
782 * Fake the status of DMA so that the initial value of
783 * PCTL and CCTL can be stored into csa->pctl and csa->cctl,
784 * respectively.
785 */
786 csa->pch.dma = csa->rch.dma = 1;
787 csa->active = 0;
788 csa->card = csa->binfo->card;
789
790 /* Allocate the resources. */
791 resp = &csa->res;
792 resp->io_rid = PCIR_BAR(0);
793 resp->mem_rid = PCIR_BAR(1);
794 resp->irq_rid = 0;
795 if (csa_allocres(csa, dev)) {
796 csa_releaseres(csa, dev);
797 return (ENXIO);
798 }
799
800 csa_active(csa, 1);
801 if (csa_init(csa)) {
802 csa_releaseres(csa, dev);
803 return (ENXIO);
804 }
805 codec = AC97_CREATE(dev, csa, csa_ac97);
806 if (codec == NULL) {
807 csa_releaseres(csa, dev);
808 return (ENXIO);
809 }
810 if (csa->card->inv_eapd)
811 ac97_setflags(codec, AC97_F_EAPD_INV);
812 if (mixer_init(dev, ac97_getmixerclass(), codec) == -1) {
813 ac97_destroy(codec);
814 csa_releaseres(csa, dev);
815 return (ENXIO);
816 }
817
818 snprintf(status, SND_STATUSLEN, "irq %jd on %s",
819 rman_get_start(resp->irq),
820 device_get_nameunit(device_get_parent(dev)));
821
822 /* Enable interrupt. */
823 if (snd_setup_intr(dev, resp->irq, 0, csa_intr, csa, &csa->ih)) {
824 ac97_destroy(codec);
825 csa_releaseres(csa, dev);
826 return (ENXIO);
827 }
828 csa_writemem(resp, BA1_PFIE, csa_readmem(resp, BA1_PFIE) & ~0x0000f03f);
829 csa_writemem(resp, BA1_CIE, (csa_readmem(resp, BA1_CIE) & ~0x0000003f) | 0x00000001);
830 csa_active(csa, -1);
831
832 pcm_init(dev, csa);
833 pcm_addchan(dev, PCMDIR_REC, &csachan_class, csa);
834 pcm_addchan(dev, PCMDIR_PLAY, &csachan_class, csa);
835 if (pcm_register(dev, status)) {
836 ac97_destroy(codec);
837 csa_releaseres(csa, dev);
838 return (ENXIO);
839 }
840
841 return (0);
842 }
843
844 static int
pcmcsa_detach(device_t dev)845 pcmcsa_detach(device_t dev)
846 {
847 int r;
848 struct csa_info *csa;
849
850 r = pcm_unregister(dev);
851 if (r)
852 return r;
853
854 csa = pcm_getdevinfo(dev);
855 csa_releaseres(csa, dev);
856
857 return 0;
858 }
859
860 static void
csa_ac97_suspend(struct csa_info * csa)861 csa_ac97_suspend(struct csa_info *csa)
862 {
863 int count, i;
864 uint32_t tmp;
865
866 for (count = 0x2, i=0;
867 (count <= CS461x_AC97_HIGHESTREGTORESTORE) &&
868 (i < CS461x_AC97_NUMBER_RESTORE_REGS);
869 count += 2, i++)
870 csa_readcodec(&csa->res, BA0_AC97_RESET + count, &csa->ac97[i]);
871
872 /* mute the outputs */
873 csa_writecodec(&csa->res, BA0_AC97_MASTER_VOLUME, 0x8000);
874 csa_writecodec(&csa->res, BA0_AC97_HEADPHONE_VOLUME, 0x8000);
875 csa_writecodec(&csa->res, BA0_AC97_MASTER_VOLUME_MONO, 0x8000);
876 csa_writecodec(&csa->res, BA0_AC97_PCM_OUT_VOLUME, 0x8000);
877 /* save the registers that cause pops */
878 csa_readcodec(&csa->res, BA0_AC97_POWERDOWN, &csa->ac97_powerdown);
879 csa_readcodec(&csa->res, BA0_AC97_GENERAL_PURPOSE,
880 &csa->ac97_general_purpose);
881
882 /*
883 * And power down everything on the AC97 codec. Well, for now,
884 * only power down the DAC/ADC and MIXER VREFON components.
885 * trouble with removing VREF.
886 */
887
888 /* MIXVON */
889 csa_readcodec(&csa->res, BA0_AC97_POWERDOWN, &tmp);
890 csa_writecodec(&csa->res, BA0_AC97_POWERDOWN,
891 tmp | CS_AC97_POWER_CONTROL_MIXVON);
892 /* ADC */
893 csa_readcodec(&csa->res, BA0_AC97_POWERDOWN, &tmp);
894 csa_writecodec(&csa->res, BA0_AC97_POWERDOWN,
895 tmp | CS_AC97_POWER_CONTROL_ADC);
896 /* DAC */
897 csa_readcodec(&csa->res, BA0_AC97_POWERDOWN, &tmp);
898 csa_writecodec(&csa->res, BA0_AC97_POWERDOWN,
899 tmp | CS_AC97_POWER_CONTROL_DAC);
900 }
901
902 static void
csa_ac97_resume(struct csa_info * csa)903 csa_ac97_resume(struct csa_info *csa)
904 {
905 int count, i;
906
907 /*
908 * First, we restore the state of the general purpose register. This
909 * contains the mic select (mic1 or mic2) and if we restore this after
910 * we restore the mic volume/boost state and mic2 was selected at
911 * suspend time, we will end up with a brief period of time where mic1
912 * is selected with the volume/boost settings for mic2, causing
913 * acoustic feedback. So we restore the general purpose register
914 * first, thereby getting the correct mic selected before we restore
915 * the mic volume/boost.
916 */
917 csa_writecodec(&csa->res, BA0_AC97_GENERAL_PURPOSE,
918 csa->ac97_general_purpose);
919 /*
920 * Now, while the outputs are still muted, restore the state of power
921 * on the AC97 part.
922 */
923 csa_writecodec(&csa->res, BA0_AC97_POWERDOWN, csa->ac97_powerdown);
924 /*
925 * Restore just the first set of registers, from register number
926 * 0x02 to the register number that ulHighestRegToRestore specifies.
927 */
928 for (count = 0x2, i=0;
929 (count <= CS461x_AC97_HIGHESTREGTORESTORE) &&
930 (i < CS461x_AC97_NUMBER_RESTORE_REGS);
931 count += 2, i++)
932 csa_writecodec(&csa->res, BA0_AC97_RESET + count, csa->ac97[i]);
933 }
934
935 static int
pcmcsa_suspend(device_t dev)936 pcmcsa_suspend(device_t dev)
937 {
938 struct csa_info *csa;
939 csa_res *resp;
940
941 csa = pcm_getdevinfo(dev);
942 resp = &csa->res;
943
944 csa_active(csa, 1);
945
946 /* playback interrupt disable */
947 csa_writemem(resp, BA1_PFIE,
948 (csa_readmem(resp, BA1_PFIE) & ~0x0000f03f) | 0x00000010);
949 /* capture interrupt disable */
950 csa_writemem(resp, BA1_CIE,
951 (csa_readmem(resp, BA1_CIE) & ~0x0000003f) | 0x00000011);
952 csa_stopplaydma(csa);
953 csa_stopcapturedma(csa);
954
955 csa_ac97_suspend(csa);
956
957 csa_resetdsp(resp);
958
959 csa_stopdsp(resp);
960 /*
961 * Power down the DAC and ADC. For now leave the other areas on.
962 */
963 csa_writecodec(&csa->res, BA0_AC97_POWERDOWN, 0x300);
964 /*
965 * Power down the PLL.
966 */
967 csa_writemem(resp, BA0_CLKCR1, 0);
968 /*
969 * Turn off the Processor by turning off the software clock
970 * enable flag in the clock control register.
971 */
972 csa_writemem(resp, BA0_CLKCR1,
973 csa_readmem(resp, BA0_CLKCR1) & ~CLKCR1_SWCE);
974
975 csa_active(csa, -1);
976
977 return 0;
978 }
979
980 static int
pcmcsa_resume(device_t dev)981 pcmcsa_resume(device_t dev)
982 {
983 struct csa_info *csa;
984 csa_res *resp;
985
986 csa = pcm_getdevinfo(dev);
987 resp = &csa->res;
988
989 csa_active(csa, 1);
990
991 /* cs_hardware_init */
992 csa_stopplaydma(csa);
993 csa_stopcapturedma(csa);
994 csa_ac97_resume(csa);
995 if (csa_startdsp(resp))
996 return (ENXIO);
997 /* Enable interrupts on the part. */
998 if ((csa_readio(resp, BA0_HISR) & HISR_INTENA) == 0)
999 csa_writeio(resp, BA0_HICR, HICR_IEV | HICR_CHGM);
1000 /* playback interrupt enable */
1001 csa_writemem(resp, BA1_PFIE, csa_readmem(resp, BA1_PFIE) & ~0x0000f03f);
1002 /* capture interrupt enable */
1003 csa_writemem(resp, BA1_CIE,
1004 (csa_readmem(resp, BA1_CIE) & ~0x0000003f) | 0x00000001);
1005 /* cs_restart_part */
1006 csa_setupchan(&csa->pch);
1007 csa_startplaydma(csa);
1008 csa_setupchan(&csa->rch);
1009 csa_startcapturedma(csa);
1010
1011 csa_active(csa, -1);
1012
1013 return 0;
1014 }
1015
1016 static device_method_t pcmcsa_methods[] = {
1017 /* Device interface */
1018 DEVMETHOD(device_probe , pcmcsa_probe ),
1019 DEVMETHOD(device_attach, pcmcsa_attach),
1020 DEVMETHOD(device_detach, pcmcsa_detach),
1021 DEVMETHOD(device_suspend, pcmcsa_suspend),
1022 DEVMETHOD(device_resume, pcmcsa_resume),
1023
1024 DEVMETHOD_END
1025 };
1026
1027 static driver_t pcmcsa_driver = {
1028 "pcm",
1029 pcmcsa_methods,
1030 PCM_SOFTC_SIZE,
1031 };
1032
1033 DRIVER_MODULE(snd_csapcm, csa, pcmcsa_driver, 0, 0);
1034 MODULE_DEPEND(snd_csapcm, sound, SOUND_MINVER, SOUND_PREFVER, SOUND_MAXVER);
1035 MODULE_DEPEND(snd_csapcm, snd_csa, 1, 1, 1);
1036 MODULE_VERSION(snd_csapcm, 1);
1037