2 * Copyright (c) 1999 Seigo Tanimura
5 * Portions of this source are based on cwcealdr.cpp and dhwiface.cpp in
6 * cwcealdr1.zip, the sample sources by Crystal Semiconductor.
7 * Copyright (c) 1996-1998 Crystal Semiconductor Corp.
9 * Redistribution and use in source and binary forms, with or without
10 * modification, are permitted provided that the following conditions
12 * 1. Redistributions of source code must retain the above copyright
13 * notice, this list of conditions and the following disclaimer.
14 * 2. Redistributions in binary form must reproduce the above copyright
15 * notice, this list of conditions and the following disclaimer in the
16 * documentation and/or other materials provided with the distribution.
18 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
19 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
20 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
21 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
22 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
23 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
24 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
25 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
26 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
27 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
30 * $FreeBSD: src/sys/dev/sound/pci/csapcm.c,v 1.34.2.2 2006/04/04 17:32:48 ariff Exp $
31 * $DragonFly: src/sys/dev/sound/pci/csapcm.c,v 1.7 2007/01/04 21:47:02 corecode Exp $
34 #include <sys/soundcard.h>
35 #include <dev/sound/pcm/sound.h>
36 #include <dev/sound/pcm/ac97.h>
37 #include <dev/sound/chip.h>
38 #include <dev/sound/pci/csareg.h>
39 #include <dev/sound/pci/csavar.h>
41 #include <bus/pci/pcireg.h>
42 #include <bus/pci/pcivar.h>
44 SND_DECLARE_FILE("$DragonFly: src/sys/dev/sound/pci/csapcm.c,v 1.7 2007/01/04 21:47:02 corecode Exp $");
46 /* Buffer size on dma transfer. Fixed for CS416x. */
47 #define CS461x_BUFFSIZE (4 * 1024)
49 #define GOF_PER_SEC 200
51 /* device private data */
55 struct csa_info *parent;
56 struct pcm_channel *channel;
57 struct snd_dbuf *buffer;
64 csa_res res; /* resource */
65 void *ih; /* Interrupt cookie */
66 bus_dma_tag_t parent_dmat; /* DMA tag */
67 struct csa_bridgeinfo *binfo; /* The state of the parent. */
68 struct csa_card *card;
71 /* Contents of board's registers */
75 struct csa_chinfo pch, rch;
76 u_int32_t ac97[CS461x_AC97_NUMBER_RESTORE_REGS];
77 u_int32_t ac97_powerdown;
78 u_int32_t ac97_general_purpose;
81 /* -------------------------------------------------------------------- */
84 static int csa_init(struct csa_info *);
85 static void csa_intr(void *);
86 static void csa_setplaysamplerate(csa_res *resp, u_long ulInRate);
87 static void csa_setcapturesamplerate(csa_res *resp, u_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);
99 static u_int32_t csa_playfmt[] = {
101 AFMT_STEREO | AFMT_U8,
103 AFMT_STEREO | AFMT_S8,
105 AFMT_STEREO | AFMT_S16_LE,
107 AFMT_STEREO | AFMT_S16_BE,
110 static struct pcmchan_caps csa_playcaps = {8000, 48000, csa_playfmt, 0};
112 static u_int32_t csa_recfmt[] = {
114 AFMT_STEREO | AFMT_S16_LE,
117 static struct pcmchan_caps csa_reccaps = {11025, 48000, csa_recfmt, 0};
119 /* -------------------------------------------------------------------- */
122 csa_active(struct csa_info *csa, int run)
129 if ((csa->active > 1) || (csa->active < -1))
131 if (csa->card->active)
132 return (csa->card->active(!(csa->active && old)));
137 /* -------------------------------------------------------------------- */
141 csa_rdcd(kobj_t obj, void *devinfo, int regno)
144 struct csa_info *csa = (struct csa_info *)devinfo;
147 if (csa_readcodec(&csa->res, regno + BA0_AC97_RESET, &data))
155 csa_wrcd(kobj_t obj, void *devinfo, int regno, u_int32_t data)
157 struct csa_info *csa = (struct csa_info *)devinfo;
160 csa_writecodec(&csa->res, regno + BA0_AC97_RESET, data);
166 static kobj_method_t csa_ac97_methods[] = {
167 KOBJMETHOD(ac97_read, csa_rdcd),
168 KOBJMETHOD(ac97_write, csa_wrcd),
171 AC97_DECLARE(csa_ac97);
174 csa_setplaysamplerate(csa_res *resp, u_long ulInRate)
176 u_long ulTemp1, ulTemp2;
178 u_long ulCorrectionPerGOF, ulCorrectionPerSec;
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:
188 * ulPhiIncr = floor((Fs,in * 2^26) / Fs,out)
189 * ulCorrectionPerGOF = floor((Fs,in * 2^26 - Fs,out * ulPhiIncr) /
191 * ulCorrectionPerSec = Fs,in * 2^26 - Fs,out * phiIncr -
192 * GOF_PER_SEC * ulCorrectionPerGOF
196 * ulPhiIncr:ulOther = dividend:remainder((Fs,in * 2^26) / Fs,out)
197 * ulCorrectionPerGOF:ulCorrectionPerSec =
198 * dividend:remainder(ulOther / GOF_PER_SEC)
200 ulTemp1 = ulInRate << 16;
201 ulPhiIncr = ulTemp1 / ulOutRate;
202 ulTemp1 -= ulPhiIncr * ulOutRate;
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;
213 * Fill in the SampleRateConverter control block.
215 csa_writemem(resp, BA1_PSRC, ((ulCorrectionPerSec << 16) & 0xFFFF0000) | (ulCorrectionPerGOF & 0xFFFF));
216 csa_writemem(resp, BA1_PPI, ulPhiIncr);
220 csa_setcapturesamplerate(csa_res *resp, u_long ulOutRate)
222 u_long ulPhiIncr, ulCoeffIncr, ulTemp1, ulTemp2;
223 u_long ulCorrectionPerGOF, ulCorrectionPerSec, ulInitialDelay;
224 u_long dwFrameGroupLength, dwCnt;
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.
233 if((ulOutRate * 9) < ulInRate)
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.
240 if(ulOutRate > ulInRate)
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:
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) /
252 * ulCorrectionPerSec = Fs,in * 2^26 - Fs,out * phiIncr -
253 * GOF_PER_SEC * ulCorrectionPerGOF
254 * ulInitialDelay = ceil((24 * Fs,in) / Fs,out)
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)
264 ulTemp1 = ulOutRate << 16;
265 ulCoeffIncr = ulTemp1 / ulInRate;
266 ulTemp1 -= ulCoeffIncr * ulInRate;
269 ulCoeffIncr += ulTemp1 / ulInRate;
270 ulCoeffIncr ^= 0xFFFFFFFF;
272 ulTemp1 = ulInRate << 16;
273 ulPhiIncr = ulTemp1 / ulOutRate;
274 ulTemp1 -= ulPhiIncr * ulOutRate;
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;
286 * Fill in the VariDecimate control block.
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);
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.
300 dwFrameGroupLength = 1;
301 for(dwCnt = 2; dwCnt <= 64; dwCnt *= 2)
303 if(((ulOutRate / dwCnt) * dwCnt) !=
306 dwFrameGroupLength *= 2;
309 if(((ulOutRate / 3) * 3) !=
312 dwFrameGroupLength *= 3;
314 for(dwCnt = 5; dwCnt <= 125; dwCnt *= 5)
316 if(((ulOutRate / dwCnt) * dwCnt) !=
319 dwFrameGroupLength *= 5;
324 * Fill in the WriteBack control block.
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);
334 csa_startplaydma(struct csa_info *csa)
341 ul = csa_readmem(resp, BA1_PCTL);
343 csa_writemem(resp, BA1_PCTL, ul | csa->pctl);
344 csa_writemem(resp, BA1_PVOL, 0x80008000);
350 csa_startcapturedma(struct csa_info *csa)
357 ul = csa_readmem(resp, BA1_CCTL);
359 csa_writemem(resp, BA1_CCTL, ul | csa->cctl);
360 csa_writemem(resp, BA1_CVOL, 0x80008000);
366 csa_stopplaydma(struct csa_info *csa)
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);
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
386 csa_clearserialfifos(resp);
387 csa_writeio(resp, BA0_SERBSP, 0);
393 csa_stopcapturedma(struct csa_info *csa)
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);
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
413 csa_clearserialfifos(resp);
414 csa_writeio(resp, BA0_SERBSP, 0);
420 csa_startdsp(csa_res *resp)
426 * Set the frame timer to reflect the number of cycles per frame.
428 csa_writemem(resp, BA1_FRMT, 0xadf);
431 * Turn on the run, run at frame, and DMA enable bits in the local copy of
432 * the SP control register.
434 csa_writemem(resp, BA1_SPCR, SPCR_RUN | SPCR_RUNFR | SPCR_DRQEN);
437 * Wait until the run at frame bit resets itself in the SP control
441 for (i = 0 ; i < 25 ; i++) {
443 * Wait a little bit, so we don't issue PCI reads too frequently.
447 * Fetch the current value of the SP status register.
449 ul = csa_readmem(resp, BA1_SPCR);
452 * If the run at frame bit has reset, then stop waiting.
454 if((ul & SPCR_RUNFR) == 0)
458 * If the run at frame bit never reset, then return an error.
460 if((ul & SPCR_RUNFR) != 0)
467 csa_stopdsp(csa_res *resp)
470 * Turn off the run, run at frame, and DMA enable bits in
471 * the local copy of the SP control register.
473 csa_writemem(resp, BA1_SPCR, 0);
479 csa_setupchan(struct csa_chinfo *ch)
481 struct csa_info *csa = ch->parent;
482 csa_res *resp = &csa->res;
485 if (ch->dir == PCMDIR_PLAY) {
487 csa_writemem(resp, BA1_PBA, sndbuf_getbufaddr(ch->buffer));
490 csa->pfie = csa_readmem(resp, BA1_PFIE) & ~0x0000f03f;
491 if (!(ch->fmt & AFMT_SIGNED))
493 if (ch->fmt & AFMT_BIGENDIAN)
495 if (!(ch->fmt & AFMT_STEREO))
497 if (ch->fmt & AFMT_8BIT)
499 csa_writemem(resp, BA1_PFIE, csa->pfie);
502 if (ch->fmt & AFMT_16BIT)
504 if (ch->fmt & AFMT_STEREO)
508 pdtc = csa_readmem(resp, BA1_PDTC) & ~0x000001ff;
510 csa_writemem(resp, BA1_PDTC, pdtc);
513 csa_setplaysamplerate(resp, ch->spd);
514 } else if (ch->dir == PCMDIR_REC) {
516 csa_writemem(resp, BA1_CBA, sndbuf_getbufaddr(ch->buffer));
519 csa_writemem(resp, BA1_CIE, (csa_readmem(resp, BA1_CIE) & ~0x0000003f) | 0x00000001);
522 csa_setcapturesamplerate(resp, ch->spd);
527 /* -------------------------------------------------------------------- */
528 /* channel interface */
531 csachan_init(kobj_t obj, void *devinfo, struct snd_dbuf *b, struct pcm_channel *c, int dir)
533 struct csa_info *csa = devinfo;
534 struct csa_chinfo *ch = (dir == PCMDIR_PLAY)? &csa->pch : &csa->rch;
540 if (sndbuf_alloc(ch->buffer, csa->parent_dmat, CS461x_BUFFSIZE) != 0)
546 csachan_setformat(kobj_t obj, void *data, u_int32_t format)
548 struct csa_chinfo *ch = data;
555 csachan_setspeed(kobj_t obj, void *data, u_int32_t speed)
557 struct csa_chinfo *ch = data;
560 return ch->spd; /* XXX calc real speed */
564 csachan_setblocksize(kobj_t obj, void *data, u_int32_t blocksize)
566 return CS461x_BUFFSIZE / 2;
570 csachan_trigger(kobj_t obj, void *data, int go)
572 struct csa_chinfo *ch = data;
573 struct csa_info *csa = ch->parent;
575 if (go == PCMTRIG_EMLDMAWR || go == PCMTRIG_EMLDMARD)
578 if (go == PCMTRIG_START) {
581 if (ch->dir == PCMDIR_PLAY)
582 csa_startplaydma(csa);
584 csa_startcapturedma(csa);
586 if (ch->dir == PCMDIR_PLAY)
587 csa_stopplaydma(csa);
589 csa_stopcapturedma(csa);
596 csachan_getptr(kobj_t obj, void *data)
598 struct csa_chinfo *ch = data;
599 struct csa_info *csa = ch->parent;
605 if (ch->dir == PCMDIR_PLAY) {
606 ptr = csa_readmem(resp, BA1_PBA) - sndbuf_getbufaddr(ch->buffer);
607 if ((ch->fmt & AFMT_U8) != 0 || (ch->fmt & AFMT_S8) != 0)
610 ptr = csa_readmem(resp, BA1_CBA) - sndbuf_getbufaddr(ch->buffer);
611 if ((ch->fmt & AFMT_U8) != 0 || (ch->fmt & AFMT_S8) != 0)
618 static struct pcmchan_caps *
619 csachan_getcaps(kobj_t obj, void *data)
621 struct csa_chinfo *ch = data;
622 return (ch->dir == PCMDIR_PLAY)? &csa_playcaps : &csa_reccaps;
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),
635 CHANNEL_DECLARE(csachan);
637 /* -------------------------------------------------------------------- */
638 /* The interrupt handler */
642 struct csa_info *csa = p;
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);
650 /* -------------------------------------------------------------------- */
653 * Probe and attach the card
657 csa_init(struct csa_info *csa)
664 csa_stopplaydma(csa);
665 csa_stopcapturedma(csa);
667 if (csa_startdsp(resp))
670 /* Crank up the power on the DAC and ADC. */
671 csa_setplaysamplerate(resp, 8000);
672 csa_setcapturesamplerate(resp, 8000);
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) |
679 csa_writeio(resp, BA0_EGPIOPTR, csa_readio(resp, BA0_EGPIOPTR) |
685 /* Allocates resources. */
687 csa_allocres(struct csa_info *csa, device_t dev)
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)
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)
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)
710 if (bus_dma_tag_create(/*parent*/NULL, /*alignment*/CS461x_BUFFSIZE, /*boundary*/CS461x_BUFFSIZE,
711 /*lowaddr*/BUS_SPACE_MAXADDR_32BIT,
712 /*highaddr*/BUS_SPACE_MAXADDR,
713 /*filter*/NULL, /*filterarg*/NULL,
714 /*maxsize*/CS461x_BUFFSIZE, /*nsegments*/1, /*maxsegz*/0x3ffff,
716 &csa->parent_dmat) != 0)
722 /* Releases resources. */
724 csa_releaseres(struct csa_info *csa, device_t dev)
728 KASSERT(csa != NULL, ("called with bogus resource structure"));
731 if (resp->irq != NULL) {
733 bus_teardown_intr(dev, resp->irq, csa->ih);
734 bus_release_resource(dev, SYS_RES_IRQ, resp->irq_rid, resp->irq);
737 if (resp->io != NULL) {
738 bus_release_resource(dev, SYS_RES_MEMORY, resp->io_rid, resp->io);
741 if (resp->mem != NULL) {
742 bus_release_resource(dev, SYS_RES_MEMORY, resp->mem_rid, resp->mem);
745 if (csa->parent_dmat != NULL) {
746 bus_dma_tag_destroy(csa->parent_dmat);
747 csa->parent_dmat = NULL;
750 kfree(csa, M_DEVBUF);
754 pcmcsa_probe(device_t dev)
757 struct sndcard_func *func;
759 /* The parent device has already been probed. */
761 func = device_get_ivars(dev);
762 if (func == NULL || func->func != SCF_PCM)
765 s = "CS461x PCM Audio";
767 device_set_desc(dev, s);
772 pcmcsa_attach(device_t dev)
774 struct csa_info *csa;
777 char status[SND_STATUSLEN];
778 struct ac97_info *codec;
779 struct sndcard_func *func;
781 csa = kmalloc(sizeof(*csa), M_DEVBUF, M_NOWAIT | M_ZERO);
784 unit = device_get_unit(dev);
785 func = device_get_ivars(dev);
786 csa->binfo = func->varinfo;
788 * Fake the status of DMA so that the initial value of
789 * PCTL and CCTL can be stored into csa->pctl and csa->cctl,
792 csa->pch.dma = csa->rch.dma = 1;
794 csa->card = csa->binfo->card;
796 /* Allocate the resources. */
798 resp->io_rid = PCIR_BAR(0);
799 resp->mem_rid = PCIR_BAR(1);
801 if (csa_allocres(csa, dev)) {
802 csa_releaseres(csa, dev);
808 csa_releaseres(csa, dev);
811 codec = AC97_CREATE(dev, csa, csa_ac97);
813 csa_releaseres(csa, dev);
816 if (csa->card->inv_eapd)
817 ac97_setflags(codec, AC97_F_EAPD_INV);
818 if (mixer_init(dev, ac97_getmixerclass(), codec) == -1) {
820 csa_releaseres(csa, dev);
824 ksnprintf(status, SND_STATUSLEN, "at irq %ld %s",
825 rman_get_start(resp->irq),PCM_KLDSTRING(snd_csa));
827 /* Enable interrupt. */
828 if (snd_setup_intr(dev, resp->irq, 0, csa_intr, csa, &csa->ih)) {
830 csa_releaseres(csa, dev);
833 csa_writemem(resp, BA1_PFIE, csa_readmem(resp, BA1_PFIE) & ~0x0000f03f);
834 csa_writemem(resp, BA1_CIE, (csa_readmem(resp, BA1_CIE) & ~0x0000003f) | 0x00000001);
837 if (pcm_register(dev, csa, 1, 1)) {
839 csa_releaseres(csa, dev);
842 pcm_addchan(dev, PCMDIR_REC, &csachan_class, csa);
843 pcm_addchan(dev, PCMDIR_PLAY, &csachan_class, csa);
844 pcm_setstatus(dev, status);
850 pcmcsa_detach(device_t dev)
853 struct csa_info *csa;
855 r = pcm_unregister(dev);
859 csa = pcm_getdevinfo(dev);
860 csa_releaseres(csa, dev);
866 csa_ac97_suspend(struct csa_info *csa)
871 for (count = 0x2, i=0;
872 (count <= CS461x_AC97_HIGHESTREGTORESTORE) &&
873 (i < CS461x_AC97_NUMBER_RESTORE_REGS);
875 csa_readcodec(&csa->res, BA0_AC97_RESET + count, &csa->ac97[i]);
877 /* mute the outputs */
878 csa_writecodec(&csa->res, BA0_AC97_MASTER_VOLUME, 0x8000);
879 csa_writecodec(&csa->res, BA0_AC97_HEADPHONE_VOLUME, 0x8000);
880 csa_writecodec(&csa->res, BA0_AC97_MASTER_VOLUME_MONO, 0x8000);
881 csa_writecodec(&csa->res, BA0_AC97_PCM_OUT_VOLUME, 0x8000);
882 /* save the registers that cause pops */
883 csa_readcodec(&csa->res, BA0_AC97_POWERDOWN, &csa->ac97_powerdown);
884 csa_readcodec(&csa->res, BA0_AC97_GENERAL_PURPOSE,
885 &csa->ac97_general_purpose);
888 * And power down everything on the AC97 codec. Well, for now,
889 * only power down the DAC/ADC and MIXER VREFON components.
890 * trouble with removing VREF.
894 csa_readcodec(&csa->res, BA0_AC97_POWERDOWN, &tmp);
895 csa_writecodec(&csa->res, BA0_AC97_POWERDOWN,
896 tmp | CS_AC97_POWER_CONTROL_MIXVON);
898 csa_readcodec(&csa->res, BA0_AC97_POWERDOWN, &tmp);
899 csa_writecodec(&csa->res, BA0_AC97_POWERDOWN,
900 tmp | CS_AC97_POWER_CONTROL_ADC);
902 csa_readcodec(&csa->res, BA0_AC97_POWERDOWN, &tmp);
903 csa_writecodec(&csa->res, BA0_AC97_POWERDOWN,
904 tmp | CS_AC97_POWER_CONTROL_DAC);
908 csa_ac97_resume(struct csa_info *csa)
913 * First, we restore the state of the general purpose register. This
914 * contains the mic select (mic1 or mic2) and if we restore this after
915 * we restore the mic volume/boost state and mic2 was selected at
916 * suspend time, we will end up with a brief period of time where mic1
917 * is selected with the volume/boost settings for mic2, causing
918 * acoustic feedback. So we restore the general purpose register
919 * first, thereby getting the correct mic selected before we restore
920 * the mic volume/boost.
922 csa_writecodec(&csa->res, BA0_AC97_GENERAL_PURPOSE,
923 csa->ac97_general_purpose);
925 * Now, while the outputs are still muted, restore the state of power
928 csa_writecodec(&csa->res, BA0_AC97_POWERDOWN, csa->ac97_powerdown);
930 * Restore just the first set of registers, from register number
931 * 0x02 to the register number that ulHighestRegToRestore specifies.
933 for (count = 0x2, i=0;
934 (count <= CS461x_AC97_HIGHESTREGTORESTORE) &&
935 (i < CS461x_AC97_NUMBER_RESTORE_REGS);
937 csa_writecodec(&csa->res, BA0_AC97_RESET + count, csa->ac97[i]);
941 pcmcsa_suspend(device_t dev)
943 struct csa_info *csa;
946 csa = pcm_getdevinfo(dev);
951 /* playback interrupt disable */
952 csa_writemem(resp, BA1_PFIE,
953 (csa_readmem(resp, BA1_PFIE) & ~0x0000f03f) | 0x00000010);
954 /* capture interrupt disable */
955 csa_writemem(resp, BA1_CIE,
956 (csa_readmem(resp, BA1_CIE) & ~0x0000003f) | 0x00000011);
957 csa_stopplaydma(csa);
958 csa_stopcapturedma(csa);
960 csa_ac97_suspend(csa);
966 * Power down the DAC and ADC. For now leave the other areas on.
968 csa_writecodec(&csa->res, BA0_AC97_POWERDOWN, 0x300);
970 * Power down the PLL.
972 csa_writemem(resp, BA0_CLKCR1, 0);
974 * Turn off the Processor by turning off the software clock
975 * enable flag in the clock control register.
977 csa_writemem(resp, BA0_CLKCR1,
978 csa_readmem(resp, BA0_CLKCR1) & ~CLKCR1_SWCE);
986 pcmcsa_resume(device_t dev)
988 struct csa_info *csa;
991 csa = pcm_getdevinfo(dev);
996 /* cs_hardware_init */
997 csa_stopplaydma(csa);
998 csa_stopcapturedma(csa);
999 csa_ac97_resume(csa);
1000 if (csa_startdsp(resp))
1002 /* Enable interrupts on the part. */
1003 if ((csa_readio(resp, BA0_HISR) & HISR_INTENA) == 0)
1004 csa_writeio(resp, BA0_HICR, HICR_IEV | HICR_CHGM);
1005 /* playback interrupt enable */
1006 csa_writemem(resp, BA1_PFIE, csa_readmem(resp, BA1_PFIE) & ~0x0000f03f);
1007 /* capture interrupt enable */
1008 csa_writemem(resp, BA1_CIE,
1009 (csa_readmem(resp, BA1_CIE) & ~0x0000003f) | 0x00000001);
1010 /* cs_restart_part */
1011 csa_setupchan(&csa->pch);
1012 csa_startplaydma(csa);
1013 csa_setupchan(&csa->rch);
1014 csa_startcapturedma(csa);
1016 csa_active(csa, -1);
1021 static device_method_t pcmcsa_methods[] = {
1022 /* Device interface */
1023 DEVMETHOD(device_probe , pcmcsa_probe ),
1024 DEVMETHOD(device_attach, pcmcsa_attach),
1025 DEVMETHOD(device_detach, pcmcsa_detach),
1026 DEVMETHOD(device_suspend, pcmcsa_suspend),
1027 DEVMETHOD(device_resume, pcmcsa_resume),
1032 static driver_t pcmcsa_driver = {
1038 DRIVER_MODULE(snd_csapcm, csa, pcmcsa_driver, pcm_devclass, 0, 0);
1039 MODULE_DEPEND(snd_csapcm, sound, SOUND_MINVER, SOUND_PREFVER, SOUND_MAXVER);
1040 MODULE_DEPEND(snd_csapcm, snd_csa, 1, 1, 1);
1041 MODULE_VERSION(snd_csapcm, 1);