FreeBSD/Linux Kernel Cross Reference
sys/dev/pci/neo.c
1 /* $NetBSD: neo.c,v 1.20.2.1 2004/09/22 20:58:43 jmc Exp $ */
2
3 /*
4 * Copyright (c) 1999 Cameron Grant <gandalf@vilnya.demon.co.uk>
5 * All rights reserved.
6 *
7 * Derived from the public domain Linux driver
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 * 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.
17 *
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, WHETHERIN 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 THEPOSSIBILITY OF
28 * SUCH DAMAGE.
29 *
30 * FreeBSD: src/sys/dev/sound/pci/neomagic.c,v 1.8 2000/03/20 15:30:50 cg Exp
31 * OpenBSD: neo.c,v 1.4 2000/07/19 09:04:37 csapuntz Exp
32 */
33
34 #include <sys/cdefs.h>
35 __KERNEL_RCSID(0, "$NetBSD: neo.c,v 1.20.2.1 2004/09/22 20:58:43 jmc Exp $");
36
37 #include <sys/param.h>
38 #include <sys/systm.h>
39 #include <sys/kernel.h>
40 #include <sys/malloc.h>
41 #include <sys/device.h>
42
43 #include <machine/bus.h>
44
45 #include <dev/pci/pcidevs.h>
46 #include <dev/pci/pcivar.h>
47
48 #include <dev/pci/neoreg.h>
49 #include <dev/pci/neo-coeff.h>
50
51 #include <sys/audioio.h>
52 #include <dev/audio_if.h>
53 #include <dev/mulaw.h>
54 #include <dev/auconv.h>
55
56 #include <dev/ic/ac97var.h>
57
58
59 /* -------------------------------------------------------------------- */
60 /*
61 * As of 04/13/00, public documentation on the Neomagic 256 is not available.
62 * These comments were gleaned by looking at the driver carefully.
63 *
64 * The Neomagic 256 AV/ZX chips provide both video and audio capabilities
65 * on one chip. About 2-6 megabytes of memory are associated with
66 * the chip. Most of this goes to video frame buffers, but some is used for
67 * audio buffering
68 *
69 * Unlike most PCI audio chips, the Neomagic chip does not rely on DMA.
70 * Instead, the chip allows you to carve out two ring buffers out of its
71 * memory. However you carve this and how much you can carve seems to be
72 * voodoo. The algorithm is in nm_init.
73 *
74 * Most Neomagic audio chips use the AC-97 codec interface. However, there
75 * seem to be a select few chips 256AV chips that do not support AC-97.
76 * This driver does not support them but there are rumors that it
77 * might work with wss isa drivers. This might require some playing around
78 * with your BIOS.
79 *
80 * The Neomagic 256 AV/ZX have 2 PCI I/O region descriptors. Both of
81 * them describe a memory region. The frame buffer is the first region
82 * and the register set is the secodn region.
83 *
84 * The register manipulation logic is taken from the Linux driver,
85 * which is in the public domain.
86 *
87 * The Neomagic is even nice enough to map the AC-97 codec registers into
88 * the register space to allow direct manipulation. Watch out, accessing
89 * AC-97 registers on the Neomagic requires great delicateness, otherwise
90 * the thing will hang the PCI bus, rendering your system frozen.
91 *
92 * For one, it seems the Neomagic status register that reports AC-97
93 * readiness should NOT be polled more often than once each 1ms.
94 *
95 * Also, writes to the AC-97 register space may take order 40us to
96 * complete.
97 *
98 * Unlike many sound engines, the Neomagic does not support (as far as
99 * we know :) the notion of interrupting every n bytes transferred,
100 * unlike many DMA engines. Instead, it allows you to specify one
101 * location in each ring buffer (called the watermark). When the chip
102 * passes that location while playing, it signals an interrupt.
103 *
104 * The ring buffer size is currently 16k. That is about 100ms of audio
105 * at 44.1kHz/stero/16 bit. However, to keep the buffer full, interrupts
106 * are generated more often than that, so 20-40 interrupts per second
107 * should not be unexpected. Increasing BUFFSIZE should help minimize
108 * of glitches due to drivers that spend to much time looping at high
109 * privelege levels as well as the impact of badly written audio
110 * interface clients.
111 *
112 * TO-DO list:
113 * Figure out interaction with video stuff (look at Xfree86 driver?)
114 *
115 * Figure out how to shrink that huge table neo-coeff.h
116 */
117
118 #define NM_BUFFSIZE 16384
119
120 /* device private data */
121 struct neo_softc {
122 struct device dev;
123
124 bus_space_tag_t bufiot;
125 bus_space_handle_t bufioh;
126
127 bus_space_tag_t regiot;
128 bus_space_handle_t regioh;
129
130 u_int32_t type;
131 void *ih;
132
133 void (*pintr)(void *); /* DMA completion intr handler */
134 void *parg; /* arg for intr() */
135
136 void (*rintr)(void *); /* DMA completion intr handler */
137 void *rarg; /* arg for intr() */
138
139 vaddr_t buf_vaddr;
140 vaddr_t rbuf_vaddr;
141 vaddr_t pbuf_vaddr;
142 int pbuf_allocated;
143 int rbuf_allocated;
144
145 bus_addr_t buf_pciaddr;
146 bus_addr_t rbuf_pciaddr;
147 bus_addr_t pbuf_pciaddr;
148
149 u_int32_t ac97_base, ac97_status, ac97_busy;
150 u_int32_t buftop, pbuf, rbuf, cbuf, acbuf;
151 u_int32_t playint, recint, misc1int, misc2int;
152 u_int32_t irsz, badintr;
153
154 u_int32_t pbufsize;
155 u_int32_t rbufsize;
156
157 u_int32_t pblksize;
158 u_int32_t rblksize;
159
160 u_int32_t pwmark;
161 u_int32_t rwmark;
162
163 struct ac97_codec_if *codec_if;
164 struct ac97_host_if host_if;
165
166 void *powerhook;
167 };
168
169 /* -------------------------------------------------------------------- */
170
171 /*
172 * prototypes
173 */
174
175 static int nm_waitcd(struct neo_softc *sc);
176 static int nm_loadcoeff(struct neo_softc *sc, int dir, int num);
177 static int nm_init(struct neo_softc *);
178
179 int neo_match(struct device *, struct cfdata *, void *);
180 void neo_attach(struct device *, struct device *, void *);
181 int neo_intr(void *);
182
183 int neo_open(void *, int);
184 void neo_close(void *);
185 int neo_query_encoding(void *, struct audio_encoding *);
186 int neo_set_params(void *, int, int, struct audio_params *,
187 struct audio_params *);
188 int neo_round_blocksize(void *, int);
189 int neo_trigger_output(void *, void *, void *, int, void (*)(void *),
190 void *, struct audio_params *);
191 int neo_trigger_input(void *, void *, void *, int, void (*)(void *),
192 void *, struct audio_params *);
193 int neo_halt_output(void *);
194 int neo_halt_input(void *);
195 int neo_getdev(void *, struct audio_device *);
196 int neo_mixer_set_port(void *, mixer_ctrl_t *);
197 int neo_mixer_get_port(void *, mixer_ctrl_t *);
198 int neo_attach_codec(void *sc, struct ac97_codec_if *);
199 int neo_read_codec(void *sc, u_int8_t a, u_int16_t *d);
200 int neo_write_codec(void *sc, u_int8_t a, u_int16_t d);
201 int neo_reset_codec(void *sc);
202 enum ac97_host_flags neo_flags_codec(void *sc);
203 int neo_query_devinfo(void *, mixer_devinfo_t *);
204 void *neo_malloc(void *, int, size_t, struct malloc_type *, int);
205 void neo_free(void *, void *, struct malloc_type *);
206 size_t neo_round_buffersize(void *, int, size_t);
207 paddr_t neo_mappage(void *, void *, off_t, int);
208 int neo_get_props(void *);
209 void neo_set_mixer(struct neo_softc *sc, int a, int d);
210 void neo_power(int why, void *arg);
211
212 CFATTACH_DECL(neo, sizeof(struct neo_softc),
213 neo_match, neo_attach, NULL, NULL);
214
215 struct audio_device neo_device = {
216 "NeoMagic 256",
217 "",
218 "neo"
219 };
220
221 /* The actual rates supported by the card. */
222 static const int samplerates[9] = {
223 8000,
224 11025,
225 16000,
226 22050,
227 24000,
228 32000,
229 44100,
230 48000,
231 99999999
232 };
233
234 /* -------------------------------------------------------------------- */
235
236 struct audio_hw_if neo_hw_if = {
237 neo_open,
238 neo_close,
239 NULL, /* drain */
240 neo_query_encoding,
241 neo_set_params,
242 neo_round_blocksize,
243 NULL, /* commit_setting */
244 NULL, /* init_output */
245 NULL, /* init_input */
246 NULL, /* start_output */
247 NULL, /* start_input */
248 neo_halt_output,
249 neo_halt_input,
250 NULL, /* speaker_ctl */
251 neo_getdev,
252 NULL, /* getfd */
253 neo_mixer_set_port,
254 neo_mixer_get_port,
255 neo_query_devinfo,
256 neo_malloc,
257 neo_free,
258 neo_round_buffersize,
259 neo_mappage,
260 neo_get_props,
261 neo_trigger_output,
262 neo_trigger_input,
263 NULL,
264 };
265
266 /* -------------------------------------------------------------------- */
267
268 #define nm_rd_1(sc, regno) \
269 bus_space_read_1((sc)->regiot, (sc)->regioh, (regno))
270
271 #define nm_rd_2(sc, regno) \
272 bus_space_read_2((sc)->regiot, (sc)->regioh, (regno))
273
274 #define nm_rd_4(sc, regno) \
275 bus_space_read_4((sc)->regiot, (sc)->regioh, (regno))
276
277 #define nm_wr_1(sc, regno, val) \
278 bus_space_write_1((sc)->regiot, (sc)->regioh, (regno), (val))
279
280 #define nm_wr_2(sc, regno, val) \
281 bus_space_write_2((sc)->regiot, (sc)->regioh, (regno), (val))
282
283 #define nm_wr_4(sc, regno, val) \
284 bus_space_write_4((sc)->regiot, (sc)->regioh, (regno), (val))
285
286 #define nm_rdbuf_4(sc, regno) \
287 bus_space_read_4((sc)->bufiot, (sc)->bufioh, (regno))
288
289 #define nm_wrbuf_1(sc, regno, val) \
290 bus_space_write_1((sc)->bufiot, (sc)->bufioh, (regno), (val))
291
292 /* ac97 codec */
293 static int
294 nm_waitcd(struct neo_softc *sc)
295 {
296 int cnt = 10;
297 int fail = 1;
298
299 while (cnt-- > 0) {
300 if (nm_rd_2(sc, sc->ac97_status) & sc->ac97_busy)
301 DELAY(100);
302 else {
303 fail = 0;
304 break;
305 }
306 }
307 return (fail);
308 }
309
310
311 static void
312 nm_ackint(struct neo_softc *sc, u_int32_t num)
313 {
314
315 switch (sc->type) {
316 case PCI_PRODUCT_NEOMAGIC_NMMM256AV_AU:
317 nm_wr_2(sc, NM_INT_REG, num << 1);
318 break;
319
320 case PCI_PRODUCT_NEOMAGIC_NMMM256ZX_AU:
321 nm_wr_4(sc, NM_INT_REG, num);
322 break;
323 }
324 }
325
326 static int
327 nm_loadcoeff(struct neo_softc *sc, int dir, int num)
328 {
329 int ofs, sz, i;
330 u_int32_t addr;
331
332 addr = (dir == AUMODE_PLAY)? 0x01c : 0x21c;
333 if (dir == AUMODE_RECORD)
334 num += 8;
335 sz = coefficientSizes[num];
336 ofs = 0;
337 while (num-- > 0)
338 ofs+= coefficientSizes[num];
339 for (i = 0; i < sz; i++)
340 nm_wrbuf_1(sc, sc->cbuf + i, coefficients[ofs + i]);
341 nm_wr_4(sc, addr, sc->cbuf);
342 if (dir == AUMODE_PLAY)
343 sz--;
344 nm_wr_4(sc, addr + 4, sc->cbuf + sz);
345 return 0;
346 }
347
348 /* The interrupt handler */
349 int
350 neo_intr(void *p)
351 {
352 struct neo_softc *sc = (struct neo_softc *)p;
353 int status, x;
354 int rv = 0;
355
356 status = (sc->irsz == 2) ?
357 nm_rd_2(sc, NM_INT_REG) :
358 nm_rd_4(sc, NM_INT_REG);
359
360 if (status & sc->playint) {
361 status &= ~sc->playint;
362
363 sc->pwmark += sc->pblksize;
364 sc->pwmark %= sc->pbufsize;
365
366 nm_wr_4(sc, NM_PBUFFER_WMARK, sc->pbuf + sc->pwmark);
367
368 nm_ackint(sc, sc->playint);
369
370 if (sc->pintr)
371 (*sc->pintr)(sc->parg);
372
373 rv = 1;
374 }
375 if (status & sc->recint) {
376 status &= ~sc->recint;
377
378 sc->rwmark += sc->rblksize;
379 sc->rwmark %= sc->rbufsize;
380
381 nm_ackint(sc, sc->recint);
382 if (sc->rintr)
383 (*sc->rintr)(sc->rarg);
384
385 rv = 1;
386 }
387 if (status & sc->misc1int) {
388 status &= ~sc->misc1int;
389 nm_ackint(sc, sc->misc1int);
390 x = nm_rd_1(sc, 0x400);
391 nm_wr_1(sc, 0x400, x | 2);
392 printf("%s: misc int 1\n", sc->dev.dv_xname);
393 rv = 1;
394 }
395 if (status & sc->misc2int) {
396 status &= ~sc->misc2int;
397 nm_ackint(sc, sc->misc2int);
398 x = nm_rd_1(sc, 0x400);
399 nm_wr_1(sc, 0x400, x & ~2);
400 printf("%s: misc int 2\n", sc->dev.dv_xname);
401 rv = 1;
402 }
403 if (status) {
404 status &= ~sc->misc2int;
405 nm_ackint(sc, sc->misc2int);
406 printf("%s: unknown int\n", sc->dev.dv_xname);
407 rv = 1;
408 }
409
410 return (rv);
411 }
412
413 /* -------------------------------------------------------------------- */
414
415 /*
416 * Probe and attach the card
417 */
418
419 static int
420 nm_init(struct neo_softc *sc)
421 {
422 u_int32_t ofs, i;
423
424 switch (sc->type) {
425 case PCI_PRODUCT_NEOMAGIC_NMMM256AV_AU:
426 sc->ac97_base = NM_MIXER_OFFSET;
427 sc->ac97_status = NM_MIXER_STATUS_OFFSET;
428 sc->ac97_busy = NM_MIXER_READY_MASK;
429
430 sc->buftop = 2560 * 1024;
431
432 sc->irsz = 2;
433 sc->playint = NM_PLAYBACK_INT;
434 sc->recint = NM_RECORD_INT;
435 sc->misc1int = NM_MISC_INT_1;
436 sc->misc2int = NM_MISC_INT_2;
437 break;
438
439 case PCI_PRODUCT_NEOMAGIC_NMMM256ZX_AU:
440 sc->ac97_base = NM_MIXER_OFFSET;
441 sc->ac97_status = NM2_MIXER_STATUS_OFFSET;
442 sc->ac97_busy = NM2_MIXER_READY_MASK;
443
444 sc->buftop = (nm_rd_2(sc, 0xa0b) ? 6144 : 4096) * 1024;
445
446 sc->irsz = 4;
447 sc->playint = NM2_PLAYBACK_INT;
448 sc->recint = NM2_RECORD_INT;
449 sc->misc1int = NM2_MISC_INT_1;
450 sc->misc2int = NM2_MISC_INT_2;
451 break;
452 #ifdef DIAGNOSTIC
453 default:
454 panic("nm_init: impossible");
455 #endif
456 }
457
458 sc->badintr = 0;
459 ofs = sc->buftop - 0x0400;
460 sc->buftop -= 0x1400;
461
462 if ((nm_rdbuf_4(sc, ofs) & NM_SIG_MASK) == NM_SIGNATURE) {
463 i = nm_rdbuf_4(sc, ofs + 4);
464 if (i != 0 && i != 0xffffffff)
465 sc->buftop = i;
466 }
467
468 sc->cbuf = sc->buftop - NM_MAX_COEFFICIENT;
469 sc->rbuf = sc->cbuf - NM_BUFFSIZE;
470 sc->pbuf = sc->rbuf - NM_BUFFSIZE;
471 sc->acbuf = sc->pbuf - (NM_TOTAL_COEFF_COUNT * 4);
472
473 sc->buf_vaddr = (vaddr_t) bus_space_vaddr(sc->bufiot, sc->bufioh);
474 sc->rbuf_vaddr = sc->buf_vaddr + sc->rbuf;
475 sc->pbuf_vaddr = sc->buf_vaddr + sc->pbuf;
476
477 sc->rbuf_pciaddr = sc->buf_pciaddr + sc->rbuf;
478 sc->pbuf_pciaddr = sc->buf_pciaddr + sc->pbuf;
479
480 nm_wr_1(sc, 0, 0x11);
481 nm_wr_1(sc, NM_RECORD_ENABLE_REG, 0);
482 nm_wr_2(sc, 0x214, 0);
483
484 return 0;
485 }
486
487 int
488 neo_match(struct device *parent, struct cfdata *match, void *aux)
489 {
490 struct pci_attach_args *pa = aux;
491 pcireg_t subdev;
492
493 if (PCI_VENDOR(pa->pa_id) != PCI_VENDOR_NEOMAGIC)
494 return (0);
495
496 subdev = pci_conf_read(pa->pa_pc, pa->pa_tag, PCI_SUBSYS_ID_REG);
497
498 switch (PCI_PRODUCT(pa->pa_id)) {
499 case PCI_PRODUCT_NEOMAGIC_NMMM256AV_AU:
500 /*
501 * We have to weed-out the non-AC'97 versions of
502 * the chip (i.e. the ones that are known to work
503 * in WSS emulation mode), as they won't work with
504 * this driver.
505 */
506 switch (PCI_VENDOR(subdev)) {
507 case PCI_VENDOR_DELL:
508 switch (PCI_PRODUCT(subdev)) {
509 case 0x008f:
510 return (0);
511 }
512 break;
513
514 case PCI_VENDOR_HP:
515 switch (PCI_PRODUCT(subdev)) {
516 case 0x0007:
517 return (0);
518 }
519 break;
520
521 case PCI_VENDOR_IBM:
522 switch (PCI_PRODUCT(subdev)) {
523 case 0x00dd:
524 return (0);
525 }
526 break;
527 }
528 return (1);
529
530 case PCI_PRODUCT_NEOMAGIC_NMMM256ZX_AU:
531 return (1);
532 }
533
534 return (0);
535 }
536
537 void
538 neo_power(int why, void *addr)
539 {
540 struct neo_softc *sc = (struct neo_softc *)addr;
541
542 if (why == PWR_RESUME) {
543 nm_init(sc);
544 (sc->codec_if->vtbl->restore_ports)(sc->codec_if);
545 }
546 }
547
548 void
549 neo_attach(struct device *parent, struct device *self, void *aux)
550 {
551 struct neo_softc *sc = (struct neo_softc *)self;
552 struct pci_attach_args *pa = (struct pci_attach_args *)aux;
553 pci_chipset_tag_t pc = pa->pa_pc;
554 char const *intrstr;
555 pci_intr_handle_t ih;
556 pcireg_t csr;
557
558 sc->type = PCI_PRODUCT(pa->pa_id);
559
560 printf(": NeoMagic 256%s audio\n",
561 sc->type == PCI_PRODUCT_NEOMAGIC_NMMM256AV_AU ? "AV" : "ZX");
562
563 /* Map I/O register */
564 if (pci_mapreg_map(pa, PCI_MAPREG_START, PCI_MAPREG_TYPE_MEM, 0,
565 &sc->bufiot, &sc->bufioh, &sc->buf_pciaddr, NULL)) {
566 printf("%s: can't map buffer\n", sc->dev.dv_xname);
567 return;
568 }
569
570 if (pci_mapreg_map(pa, PCI_MAPREG_START + 4, PCI_MAPREG_TYPE_MEM,
571 BUS_SPACE_MAP_LINEAR, &sc->regiot, &sc->regioh, NULL, NULL)) {
572 printf("%s: can't map registers\n", sc->dev.dv_xname);
573 return;
574 }
575
576 /* Map and establish the interrupt. */
577 if (pci_intr_map(pa, &ih)) {
578 printf("%s: couldn't map interrupt\n", sc->dev.dv_xname);
579 return;
580 }
581
582 intrstr = pci_intr_string(pc, ih);
583 sc->ih = pci_intr_establish(pc, ih, IPL_AUDIO, neo_intr, sc);
584
585 if (sc->ih == NULL) {
586 printf("%s: couldn't establish interrupt",
587 sc->dev.dv_xname);
588 if (intrstr != NULL)
589 printf(" at %s", intrstr);
590 printf("\n");
591 return;
592 }
593 printf("%s: interruping at %s\n", sc->dev.dv_xname, intrstr);
594
595 if (nm_init(sc) != 0)
596 return;
597
598 /* Enable the device. */
599 csr = pci_conf_read(pa->pa_pc, pa->pa_tag, PCI_COMMAND_STATUS_REG);
600 pci_conf_write(pa->pa_pc, pa->pa_tag, PCI_COMMAND_STATUS_REG,
601 csr | PCI_COMMAND_MASTER_ENABLE);
602
603 sc->host_if.arg = sc;
604
605 sc->host_if.attach = neo_attach_codec;
606 sc->host_if.read = neo_read_codec;
607 sc->host_if.write = neo_write_codec;
608 sc->host_if.reset = neo_reset_codec;
609 sc->host_if.flags = neo_flags_codec;
610
611 if (ac97_attach(&sc->host_if) != 0)
612 return;
613
614 sc->powerhook = powerhook_establish(neo_power, sc);
615
616 audio_attach_mi(&neo_hw_if, sc, &sc->dev);
617 }
618
619 int
620 neo_read_codec(void *v, u_int8_t a, u_int16_t *d)
621 {
622 struct neo_softc *sc = v;
623
624 if (!nm_waitcd(sc)) {
625 *d = nm_rd_2(sc, sc->ac97_base + a);
626 DELAY(1000);
627 return 0;
628 }
629
630 return (ENXIO);
631 }
632
633
634 int
635 neo_write_codec(void *v, u_int8_t a, u_int16_t d)
636 {
637 struct neo_softc *sc = v;
638 int cnt = 3;
639
640 if (!nm_waitcd(sc)) {
641 while (cnt-- > 0) {
642 nm_wr_2(sc, sc->ac97_base + a, d);
643 if (!nm_waitcd(sc)) {
644 DELAY(1000);
645 return (0);
646 }
647 }
648 }
649
650 return (ENXIO);
651 }
652
653 int
654 neo_attach_codec(void *v, struct ac97_codec_if *codec_if)
655 {
656 struct neo_softc *sc = v;
657
658 sc->codec_if = codec_if;
659 return (0);
660 }
661
662 int
663 neo_reset_codec(void *v)
664 {
665 struct neo_softc *sc = v;
666
667 nm_wr_1(sc, 0x6c0, 0x01);
668 nm_wr_1(sc, 0x6cc, 0x87);
669 nm_wr_1(sc, 0x6cc, 0x80);
670 nm_wr_1(sc, 0x6cc, 0x00);
671 return 0;
672 }
673
674 enum ac97_host_flags
675 neo_flags_codec(void *v)
676 {
677
678 return (AC97_HOST_DONT_READ);
679 }
680
681 int
682 neo_open(void *addr, int flags)
683 {
684
685 return (0);
686 }
687
688 /*
689 * Close function is called at splaudio().
690 */
691 void
692 neo_close(void *addr)
693 {
694 struct neo_softc *sc = addr;
695
696 neo_halt_output(sc);
697 neo_halt_input(sc);
698
699 sc->pintr = 0;
700 sc->rintr = 0;
701 }
702
703 int
704 neo_query_encoding(void *addr, struct audio_encoding *fp)
705 {
706
707 switch (fp->index) {
708 case 0:
709 strcpy(fp->name, AudioEulinear);
710 fp->encoding = AUDIO_ENCODING_ULINEAR;
711 fp->precision = 8;
712 fp->flags = 0;
713 return (0);
714 case 1:
715 strcpy(fp->name, AudioEmulaw);
716 fp->encoding = AUDIO_ENCODING_ULAW;
717 fp->precision = 8;
718 fp->flags = AUDIO_ENCODINGFLAG_EMULATED;
719 return (0);
720 case 2:
721 strcpy(fp->name, AudioEalaw);
722 fp->encoding = AUDIO_ENCODING_ALAW;
723 fp->precision = 8;
724 fp->flags = AUDIO_ENCODINGFLAG_EMULATED;
725 return (0);
726 case 3:
727 strcpy(fp->name, AudioEslinear);
728 fp->encoding = AUDIO_ENCODING_SLINEAR;
729 fp->precision = 8;
730 fp->flags = AUDIO_ENCODINGFLAG_EMULATED;
731 return (0);
732 case 4:
733 strcpy(fp->name, AudioEslinear_le);
734 fp->encoding = AUDIO_ENCODING_SLINEAR_LE;
735 fp->precision = 16;
736 fp->flags = 0;
737 return (0);
738 case 5:
739 strcpy(fp->name, AudioEulinear_le);
740 fp->encoding = AUDIO_ENCODING_ULINEAR_LE;
741 fp->precision = 16;
742 fp->flags = AUDIO_ENCODINGFLAG_EMULATED;
743 return (0);
744 case 6:
745 strcpy(fp->name, AudioEslinear_be);
746 fp->encoding = AUDIO_ENCODING_SLINEAR_BE;
747 fp->precision = 16;
748 fp->flags = AUDIO_ENCODINGFLAG_EMULATED;
749 return (0);
750 case 7:
751 strcpy(fp->name, AudioEulinear_be);
752 fp->encoding = AUDIO_ENCODING_ULINEAR_BE;
753 fp->precision = 16;
754 fp->flags = AUDIO_ENCODINGFLAG_EMULATED;
755 return (0);
756 default:
757 return (EINVAL);
758 }
759 }
760
761 /* Todo: don't commit settings to card until we've verified all parameters */
762 int
763 neo_set_params(void *addr, int setmode, int usemode, struct audio_params *play,
764 struct audio_params *rec)
765 {
766 struct neo_softc *sc = addr;
767 u_int32_t base;
768 u_int8_t x;
769 int mode;
770 struct audio_params *p;
771
772 for (mode = AUMODE_RECORD; mode != -1;
773 mode = mode == AUMODE_RECORD ? AUMODE_PLAY : -1) {
774 if ((setmode & mode) == 0)
775 continue;
776
777 p = mode == AUMODE_PLAY ? play : rec;
778
779 if (p == NULL) continue;
780
781 for (x = 0; x < 8; x++) {
782 if (p->sample_rate <
783 (samplerates[x] + samplerates[x + 1]) / 2)
784 break;
785 }
786 if (x == 8)
787 return (EINVAL);
788
789 p->sample_rate = samplerates[x];
790 nm_loadcoeff(sc, mode, x);
791
792 x <<= 4;
793 x &= NM_RATE_MASK;
794 if (p->precision == 16)
795 x |= NM_RATE_BITS_16;
796 if (p->channels == 2)
797 x |= NM_RATE_STEREO;
798
799 base = (mode == AUMODE_PLAY)?
800 NM_PLAYBACK_REG_OFFSET : NM_RECORD_REG_OFFSET;
801 nm_wr_1(sc, base + NM_RATE_REG_OFFSET, x);
802
803 p->factor = 1;
804 p->sw_code = 0;
805 switch (p->encoding) {
806 case AUDIO_ENCODING_SLINEAR_BE:
807 if (p->precision == 16)
808 p->sw_code = swap_bytes;
809 else
810 p->sw_code = change_sign8;
811 break;
812 case AUDIO_ENCODING_SLINEAR_LE:
813 if (p->precision != 16)
814 p->sw_code = change_sign8;
815 break;
816 case AUDIO_ENCODING_ULINEAR_BE:
817 if (p->precision == 16) {
818 if (mode == AUMODE_PLAY)
819 p->sw_code =
820 swap_bytes_change_sign16_le;
821 else
822 p->sw_code =
823 change_sign16_swap_bytes_le;
824 }
825 break;
826 case AUDIO_ENCODING_ULINEAR_LE:
827 if (p->precision == 16)
828 p->sw_code = change_sign16_le;
829 break;
830 case AUDIO_ENCODING_ULAW:
831 if (mode == AUMODE_PLAY) {
832 p->factor = 2;
833 p->sw_code = mulaw_to_slinear16_le;
834 } else
835 p->sw_code = ulinear8_to_mulaw;
836 break;
837 case AUDIO_ENCODING_ALAW:
838 if (mode == AUMODE_PLAY) {
839 p->factor = 2;
840 p->sw_code = alaw_to_slinear16_le;
841 } else
842 p->sw_code = ulinear8_to_alaw;
843 break;
844 default:
845 return (EINVAL);
846 }
847 }
848
849
850 return (0);
851 }
852
853 int
854 neo_round_blocksize(void *addr, int blk)
855 {
856
857 return (NM_BUFFSIZE / 2);
858 }
859
860 int
861 neo_trigger_output(void *addr, void *start, void *end, int blksize,
862 void (*intr)(void *), void *arg, struct audio_params *param)
863 {
864 struct neo_softc *sc = addr;
865 int ssz;
866
867 sc->pintr = intr;
868 sc->parg = arg;
869
870 ssz = (param->precision * param->factor == 16) ? 2 : 1;
871 if (param->channels == 2)
872 ssz <<= 1;
873
874 sc->pbufsize = ((char*)end - (char *)start);
875 sc->pblksize = blksize;
876 sc->pwmark = blksize;
877
878 nm_wr_4(sc, NM_PBUFFER_START, sc->pbuf);
879 nm_wr_4(sc, NM_PBUFFER_END, sc->pbuf + sc->pbufsize - ssz);
880 nm_wr_4(sc, NM_PBUFFER_CURRP, sc->pbuf);
881 nm_wr_4(sc, NM_PBUFFER_WMARK, sc->pbuf + sc->pwmark);
882 nm_wr_1(sc, NM_PLAYBACK_ENABLE_REG, NM_PLAYBACK_FREERUN |
883 NM_PLAYBACK_ENABLE_FLAG);
884 nm_wr_2(sc, NM_AUDIO_MUTE_REG, 0);
885
886 return (0);
887 }
888
889 int
890 neo_trigger_input(void *addr, void *start, void *end, int blksize,
891 void (*intr)(void *), void *arg, struct audio_params *param)
892 {
893 struct neo_softc *sc = addr;
894 int ssz;
895
896 sc->rintr = intr;
897 sc->rarg = arg;
898
899 ssz = (param->precision * param->factor == 16) ? 2 : 1;
900 if (param->channels == 2)
901 ssz <<= 1;
902
903 sc->rbufsize = ((char*)end - (char *)start);
904 sc->rblksize = blksize;
905 sc->rwmark = blksize;
906
907 nm_wr_4(sc, NM_RBUFFER_START, sc->rbuf);
908 nm_wr_4(sc, NM_RBUFFER_END, sc->rbuf + sc->rbufsize);
909 nm_wr_4(sc, NM_RBUFFER_CURRP, sc->rbuf);
910 nm_wr_4(sc, NM_RBUFFER_WMARK, sc->rbuf + sc->rwmark);
911 nm_wr_1(sc, NM_RECORD_ENABLE_REG, NM_RECORD_FREERUN |
912 NM_RECORD_ENABLE_FLAG);
913
914 return (0);
915 }
916
917 int
918 neo_halt_output(void *addr)
919 {
920 struct neo_softc *sc = (struct neo_softc *)addr;
921
922 nm_wr_1(sc, NM_PLAYBACK_ENABLE_REG, 0);
923 nm_wr_2(sc, NM_AUDIO_MUTE_REG, NM_AUDIO_MUTE_BOTH);
924
925 return (0);
926 }
927
928 int
929 neo_halt_input(void *addr)
930 {
931 struct neo_softc *sc = (struct neo_softc *)addr;
932
933 nm_wr_1(sc, NM_RECORD_ENABLE_REG, 0);
934
935 return (0);
936 }
937
938 int
939 neo_getdev(void *addr, struct audio_device *retp)
940 {
941
942 *retp = neo_device;
943 return (0);
944 }
945
946 int
947 neo_mixer_set_port(void *addr, mixer_ctrl_t *cp)
948 {
949 struct neo_softc *sc = addr;
950
951 return ((sc->codec_if->vtbl->mixer_set_port)(sc->codec_if, cp));
952 }
953
954 int
955 neo_mixer_get_port(void *addr, mixer_ctrl_t *cp)
956 {
957 struct neo_softc *sc = addr;
958
959 return ((sc->codec_if->vtbl->mixer_get_port)(sc->codec_if, cp));
960 }
961
962 int
963 neo_query_devinfo(void *addr, mixer_devinfo_t *dip)
964 {
965 struct neo_softc *sc = addr;
966
967 return ((sc->codec_if->vtbl->query_devinfo)(sc->codec_if, dip));
968 }
969
970 void *
971 neo_malloc(void *addr, int direction, size_t size, struct malloc_type *pool,
972 int flags)
973 {
974 struct neo_softc *sc = addr;
975 void *rv = NULL;
976
977 switch (direction) {
978 case AUMODE_PLAY:
979 if (sc->pbuf_allocated == 0) {
980 rv = (void *) sc->pbuf_vaddr;
981 sc->pbuf_allocated = 1;
982 }
983 break;
984
985 case AUMODE_RECORD:
986 if (sc->rbuf_allocated == 0) {
987 rv = (void *) sc->rbuf_vaddr;
988 sc->rbuf_allocated = 1;
989 }
990 break;
991 }
992
993 return (rv);
994 }
995
996 void
997 neo_free(void *addr, void *ptr, struct malloc_type *pool)
998 {
999 struct neo_softc *sc = addr;
1000 vaddr_t v = (vaddr_t) ptr;
1001
1002 if (v == sc->pbuf_vaddr)
1003 sc->pbuf_allocated = 0;
1004 else if (v == sc->rbuf_vaddr)
1005 sc->rbuf_allocated = 0;
1006 else
1007 printf("neo_free: bad address %p\n", ptr);
1008 }
1009
1010 size_t
1011 neo_round_buffersize(void *addr, int direction, size_t size)
1012 {
1013
1014 return (NM_BUFFSIZE);
1015 }
1016
1017 paddr_t
1018 neo_mappage(void *addr, void *mem, off_t off, int prot)
1019 {
1020 struct neo_softc *sc = addr;
1021 vaddr_t v = (vaddr_t) mem;
1022 bus_addr_t pciaddr;
1023
1024 if (v == sc->pbuf_vaddr)
1025 pciaddr = sc->pbuf_pciaddr;
1026 else if (v == sc->rbuf_vaddr)
1027 pciaddr = sc->rbuf_pciaddr;
1028 else
1029 return (-1);
1030
1031 return (bus_space_mmap(sc->bufiot, pciaddr, off, prot,
1032 BUS_SPACE_MAP_LINEAR));
1033 }
1034
1035 int
1036 neo_get_props(void *addr)
1037 {
1038
1039 return (AUDIO_PROP_INDEPENDENT | AUDIO_PROP_MMAP |
1040 AUDIO_PROP_FULLDUPLEX);
1041 }
Cache object: 1a6e4ad08ede1fdaea028e1dd7d94939
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