1 | /* $NetBSD: hdaudio.c,v 1.4 2015/12/23 12:45:06 jmcneill Exp $ */ |
2 | |
3 | /* |
4 | * Copyright (c) 2009 Precedence Technologies Ltd <support@precedence.co.uk> |
5 | * Copyright (c) 2009 Jared D. McNeill <jmcneill@invisible.ca> |
6 | * All rights reserved. |
7 | * |
8 | * This code is derived from software contributed to The NetBSD Foundation |
9 | * by Precedence Technologies Ltd |
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. The name of the author may not be used to endorse or promote products |
17 | * derived from this software without specific prior written permission. |
18 | * |
19 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR |
20 | * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
21 | * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
22 | * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, |
23 | * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, |
24 | * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; |
25 | * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED |
26 | * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, |
27 | * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY |
28 | * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
29 | * SUCH DAMAGE. |
30 | */ |
31 | |
32 | #include <sys/cdefs.h> |
33 | __KERNEL_RCSID(0, "$NetBSD: hdaudio.c,v 1.4 2015/12/23 12:45:06 jmcneill Exp $" ); |
34 | |
35 | #include <sys/types.h> |
36 | #include <sys/param.h> |
37 | #include <sys/systm.h> |
38 | #include <sys/device.h> |
39 | #include <sys/conf.h> |
40 | #include <sys/bus.h> |
41 | #include <sys/kmem.h> |
42 | #include <sys/module.h> |
43 | |
44 | #include "hdaudiovar.h" |
45 | #include "hdaudioreg.h" |
46 | #include "hdaudioio.h" |
47 | #include "hdaudio_verbose.h" |
48 | |
49 | /* #define HDAUDIO_DEBUG */ |
50 | |
51 | #define HDAUDIO_RESET_TIMEOUT 5000 |
52 | #define HDAUDIO_CORB_TIMEOUT 1000 |
53 | #define HDAUDIO_RIRB_TIMEOUT 5000 |
54 | |
55 | #define HDAUDIO_CODEC_DELAY 1000 /* spec calls for 250 */ |
56 | |
57 | dev_type_open(hdaudioopen); |
58 | dev_type_close(hdaudioclose); |
59 | dev_type_ioctl(hdaudioioctl); |
60 | |
61 | const struct cdevsw hdaudio_cdevsw = { |
62 | .d_open = hdaudioopen, |
63 | .d_close = hdaudioclose, |
64 | .d_read = noread, |
65 | .d_write = nowrite, |
66 | .d_ioctl = hdaudioioctl, |
67 | .d_stop = nostop, |
68 | .d_tty = notty, |
69 | .d_poll = nopoll, |
70 | .d_mmap = nommap, |
71 | .d_kqfilter = nokqfilter, |
72 | .d_discard = nodiscard, |
73 | .d_flag = D_OTHER |
74 | }; |
75 | |
76 | extern struct cfdriver hdaudio_cd; |
77 | |
78 | #define HDAUDIOUNIT(x) minor((x)) |
79 | |
80 | static void |
81 | hdaudio_stream_init(struct hdaudio_softc *sc, int nis, int nos, int nbidir) |
82 | { |
83 | int i, cnt = 0; |
84 | |
85 | for (i = 0; i < nis && cnt < HDAUDIO_MAX_STREAMS; i++) { |
86 | sc->sc_stream[cnt].st_host = sc; |
87 | sc->sc_stream[cnt].st_enable = true; |
88 | sc->sc_stream[cnt].st_shift = cnt; |
89 | sc->sc_stream[cnt++].st_type = HDAUDIO_STREAM_ISS; |
90 | } |
91 | for (i = 0; i < nos && cnt < HDAUDIO_MAX_STREAMS; i++) { |
92 | sc->sc_stream[cnt].st_host = sc; |
93 | sc->sc_stream[cnt].st_enable = true; |
94 | sc->sc_stream[cnt].st_shift = cnt; |
95 | sc->sc_stream[cnt++].st_type = HDAUDIO_STREAM_OSS; |
96 | } |
97 | for (i = 0; i < nbidir && cnt < HDAUDIO_MAX_STREAMS; i++) { |
98 | sc->sc_stream[cnt].st_host = sc; |
99 | sc->sc_stream[cnt].st_enable = true; |
100 | sc->sc_stream[cnt].st_shift = cnt; |
101 | sc->sc_stream[cnt++].st_type = HDAUDIO_STREAM_BSS; |
102 | } |
103 | |
104 | for (i = 0; i < cnt; i++) |
105 | hdaudio_stream_stop(&sc->sc_stream[i]); |
106 | |
107 | sc->sc_stream_mask = 0; |
108 | } |
109 | |
110 | static void |
111 | hdaudio_codec_init(struct hdaudio_softc *sc) |
112 | { |
113 | int i; |
114 | |
115 | for (i = 0; i < HDAUDIO_MAX_CODECS; i++) { |
116 | sc->sc_codec[i].co_addr = i; |
117 | sc->sc_codec[i].co_host = sc; |
118 | } |
119 | } |
120 | |
121 | static void |
122 | hdaudio_init(struct hdaudio_softc *sc) |
123 | { |
124 | uint16_t gcap; |
125 | int nos, nis, nbidir; |
126 | #if defined(HDAUDIO_DEBUG) |
127 | uint8_t vmin, vmaj; |
128 | int nsdo, addr64; |
129 | #endif |
130 | |
131 | #if defined(HDAUDIO_DEBUG) |
132 | vmaj = hda_read1(sc, HDAUDIO_MMIO_VMAJ); |
133 | vmin = hda_read1(sc, HDAUDIO_MMIO_VMIN); |
134 | |
135 | hda_print(sc, "High Definition Audio version %d.%d\n" , vmaj, vmin); |
136 | #endif |
137 | |
138 | gcap = hda_read2(sc, HDAUDIO_MMIO_GCAP); |
139 | nis = HDAUDIO_GCAP_ISS(gcap); |
140 | nos = HDAUDIO_GCAP_OSS(gcap); |
141 | nbidir = HDAUDIO_GCAP_BSS(gcap); |
142 | |
143 | /* Initialize codecs and streams */ |
144 | hdaudio_codec_init(sc); |
145 | hdaudio_stream_init(sc, nis, nos, nbidir); |
146 | |
147 | #if defined(HDAUDIO_DEBUG) |
148 | nsdo = HDAUDIO_GCAP_NSDO(gcap); |
149 | addr64 = HDAUDIO_GCAP_64OK(gcap); |
150 | |
151 | hda_print(sc, "OSS %d ISS %d BSS %d SDO %d%s\n" , |
152 | nos, nis, nbidir, nsdo, addr64 ? " 64-bit" : "" ); |
153 | #endif |
154 | } |
155 | |
156 | static int |
157 | hdaudio_codec_probe(struct hdaudio_softc *sc) |
158 | { |
159 | uint16_t statests; |
160 | int codecid; |
161 | |
162 | statests = hda_read2(sc, HDAUDIO_MMIO_STATESTS); |
163 | for (codecid = 0; codecid < HDAUDIO_MAX_CODECS; codecid++) |
164 | if (statests & (1 << codecid)) |
165 | sc->sc_codec[codecid].co_valid = true; |
166 | hda_write2(sc, HDAUDIO_MMIO_STATESTS, statests); |
167 | |
168 | return statests; |
169 | } |
170 | |
171 | int |
172 | hdaudio_dma_alloc(struct hdaudio_softc *sc, struct hdaudio_dma *dma, |
173 | int flags) |
174 | { |
175 | int err; |
176 | |
177 | KASSERT(dma->dma_size > 0); |
178 | |
179 | err = bus_dmamem_alloc(sc->sc_dmat, dma->dma_size, 128, 0, |
180 | dma->dma_segs, sizeof(dma->dma_segs) / sizeof(dma->dma_segs[0]), |
181 | &dma->dma_nsegs, BUS_DMA_WAITOK); |
182 | if (err) |
183 | return err; |
184 | err = bus_dmamem_map(sc->sc_dmat, dma->dma_segs, dma->dma_nsegs, |
185 | dma->dma_size, &dma->dma_addr, BUS_DMA_WAITOK | flags); |
186 | if (err) |
187 | goto free; |
188 | err = bus_dmamap_create(sc->sc_dmat, dma->dma_size, dma->dma_nsegs, |
189 | dma->dma_size, 0, BUS_DMA_WAITOK, &dma->dma_map); |
190 | if (err) |
191 | goto unmap; |
192 | err = bus_dmamap_load(sc->sc_dmat, dma->dma_map, dma->dma_addr, |
193 | dma->dma_size, NULL, BUS_DMA_WAITOK | flags); |
194 | if (err) |
195 | goto destroy; |
196 | |
197 | dma->dma_valid = true; |
198 | return 0; |
199 | |
200 | destroy: |
201 | bus_dmamap_destroy(sc->sc_dmat, dma->dma_map); |
202 | unmap: |
203 | bus_dmamem_unmap(sc->sc_dmat, dma->dma_addr, dma->dma_size); |
204 | free: |
205 | bus_dmamem_free(sc->sc_dmat, dma->dma_segs, dma->dma_nsegs); |
206 | |
207 | dma->dma_valid = false; |
208 | return err; |
209 | } |
210 | |
211 | void |
212 | hdaudio_dma_free(struct hdaudio_softc *sc, struct hdaudio_dma *dma) |
213 | { |
214 | if (dma->dma_valid == false) |
215 | return; |
216 | bus_dmamap_unload(sc->sc_dmat, dma->dma_map); |
217 | bus_dmamap_destroy(sc->sc_dmat, dma->dma_map); |
218 | bus_dmamem_unmap(sc->sc_dmat, dma->dma_addr, dma->dma_size); |
219 | bus_dmamem_free(sc->sc_dmat, dma->dma_segs, dma->dma_nsegs); |
220 | dma->dma_valid = false; |
221 | } |
222 | |
223 | static void |
224 | hdaudio_corb_enqueue(struct hdaudio_softc *sc, int addr, int nid, |
225 | uint32_t control, uint32_t param) |
226 | { |
227 | uint32_t *corb = DMA_KERNADDR(&sc->sc_corb); |
228 | uint32_t verb; |
229 | uint16_t corbrp; |
230 | int wp; |
231 | |
232 | /* Build command */ |
233 | verb = (addr << 28) | (nid << 20) | (control << 8) | param; |
234 | |
235 | /* Fetch and update write pointer */ |
236 | corbrp = hda_read2(sc, HDAUDIO_MMIO_CORBWP); |
237 | wp = (corbrp & 0xff) + 1; |
238 | if (wp >= (sc->sc_corb.dma_size / sizeof(*corb))) |
239 | wp = 0; |
240 | |
241 | /* Enqueue command */ |
242 | bus_dmamap_sync(sc->sc_dmat, sc->sc_corb.dma_map, 0, |
243 | sc->sc_corb.dma_size, BUS_DMASYNC_POSTWRITE); |
244 | corb[wp] = verb; |
245 | bus_dmamap_sync(sc->sc_dmat, sc->sc_corb.dma_map, 0, |
246 | sc->sc_corb.dma_size, BUS_DMASYNC_PREWRITE); |
247 | |
248 | /* Commit updated write pointer */ |
249 | hda_write2(sc, HDAUDIO_MMIO_CORBWP, wp); |
250 | } |
251 | |
252 | static void |
253 | hdaudio_rirb_unsol(struct hdaudio_softc *sc, struct rirb_entry *entry) |
254 | { |
255 | struct hdaudio_codec *co; |
256 | struct hdaudio_function_group *fg; |
257 | uint8_t codecid = RIRB_CODEC_ID(entry); |
258 | unsigned int i; |
259 | |
260 | if (codecid >= HDAUDIO_MAX_CODECS) { |
261 | hda_error(sc, "unsol: codec id 0x%02x out of range\n" , codecid); |
262 | return; |
263 | } |
264 | co = &sc->sc_codec[codecid]; |
265 | if (sc->sc_codec[codecid].co_valid == false) { |
266 | hda_error(sc, "unsol: codec id 0x%02x not valid\n" , codecid); |
267 | return; |
268 | } |
269 | |
270 | for (i = 0; i < co->co_nfg; i++) { |
271 | fg = &co->co_fg[i]; |
272 | if (fg->fg_device && fg->fg_unsol) |
273 | fg->fg_unsol(fg->fg_device, entry->resp); |
274 | } |
275 | } |
276 | |
277 | static uint32_t |
278 | hdaudio_rirb_dequeue(struct hdaudio_softc *sc, bool unsol) |
279 | { |
280 | uint16_t rirbwp; |
281 | uint64_t *rirb = DMA_KERNADDR(&sc->sc_rirb); |
282 | struct rirb_entry entry; |
283 | int retry; |
284 | |
285 | for (;;) { |
286 | retry = HDAUDIO_RIRB_TIMEOUT; |
287 | |
288 | rirbwp = hda_read2(sc, HDAUDIO_MMIO_RIRBWP); |
289 | while (--retry > 0 && (rirbwp & 0xff) == sc->sc_rirbrp) { |
290 | if (unsol) { |
291 | /* don't wait for more unsol events */ |
292 | hda_trace(sc, "unsol: rirb empty\n" ); |
293 | return 0xffffffff; |
294 | } |
295 | hda_delay(10); |
296 | rirbwp = hda_read2(sc, HDAUDIO_MMIO_RIRBWP); |
297 | } |
298 | if (retry == 0) { |
299 | hda_error(sc, "RIRB timeout\n" ); |
300 | return 0xffffffff; |
301 | } |
302 | |
303 | sc->sc_rirbrp++; |
304 | if (sc->sc_rirbrp >= (sc->sc_rirb.dma_size / sizeof(*rirb))) |
305 | sc->sc_rirbrp = 0; |
306 | |
307 | bus_dmamap_sync(sc->sc_dmat, sc->sc_rirb.dma_map, 0, |
308 | sc->sc_rirb.dma_size, BUS_DMASYNC_POSTREAD); |
309 | entry = *(struct rirb_entry *)&rirb[sc->sc_rirbrp]; |
310 | bus_dmamap_sync(sc->sc_dmat, sc->sc_rirb.dma_map, 0, |
311 | sc->sc_rirb.dma_size, BUS_DMASYNC_PREREAD); |
312 | |
313 | hda_trace(sc, "%s: response %08X %08X\n" , |
314 | unsol ? "unsol" : "cmd " , |
315 | entry.resp, entry.resp_ex); |
316 | |
317 | if (RIRB_UNSOL(&entry)) { |
318 | hdaudio_rirb_unsol(sc, &entry); |
319 | continue; |
320 | } |
321 | |
322 | return entry.resp; |
323 | } |
324 | } |
325 | |
326 | uint32_t |
327 | hdaudio_command(struct hdaudio_codec *co, int nid, uint32_t control, |
328 | uint32_t param) |
329 | { |
330 | uint32_t result; |
331 | struct hdaudio_softc *sc = co->co_host; |
332 | mutex_enter(&sc->sc_corb_mtx); |
333 | result = hdaudio_command_unlocked(co, nid, control, param); |
334 | mutex_exit(&sc->sc_corb_mtx); |
335 | return result; |
336 | } |
337 | |
338 | uint32_t |
339 | hdaudio_command_unlocked(struct hdaudio_codec *co, int nid, uint32_t control, |
340 | uint32_t param) |
341 | { |
342 | struct hdaudio_softc *sc = co->co_host; |
343 | uint32_t result; |
344 | |
345 | hda_trace(sc, "cmd : request %08X %08X (%02X)\n" , |
346 | control, param, nid); |
347 | hdaudio_corb_enqueue(sc, co->co_addr, nid, control, param); |
348 | result = hdaudio_rirb_dequeue(sc, false); |
349 | |
350 | return result; |
351 | } |
352 | |
353 | static int |
354 | hdaudio_corb_setsize(struct hdaudio_softc *sc) |
355 | { |
356 | uint8_t corbsize; |
357 | bus_size_t bufsize = 0; |
358 | |
359 | /* |
360 | * The size of the CORB is programmable to 2, 16, or 256 entries |
361 | * by using the CORBSIZE register. Choose a size based on the |
362 | * controller capabilities, preferring a larger size when possible. |
363 | */ |
364 | corbsize = hda_read1(sc, HDAUDIO_MMIO_CORBSIZE); |
365 | corbsize &= ~0x3; |
366 | if ((corbsize >> 4) & 0x4) { |
367 | corbsize |= 0x2; |
368 | bufsize = 1024; |
369 | } else if ((corbsize >> 4) & 0x2) { |
370 | corbsize |= 0x1; |
371 | bufsize = 64; |
372 | } else if ((corbsize >> 4) & 0x1) { |
373 | corbsize |= 0x0; |
374 | bufsize = 8; |
375 | } else { |
376 | hda_error(sc, "couldn't configure CORB size\n" ); |
377 | return ENXIO; |
378 | } |
379 | |
380 | #if defined(HDAUDIO_DEBUG) |
381 | hda_print(sc, "using %d byte CORB (cap %X)\n" , |
382 | (int)bufsize, corbsize >> 4); |
383 | #endif |
384 | |
385 | sc->sc_corb.dma_size = bufsize; |
386 | sc->sc_corb.dma_sizereg = corbsize; |
387 | |
388 | return 0; |
389 | } |
390 | |
391 | static int |
392 | hdaudio_corb_config(struct hdaudio_softc *sc) |
393 | { |
394 | uint32_t corbubase, corblbase; |
395 | uint16_t corbrp; |
396 | int retry = HDAUDIO_CORB_TIMEOUT; |
397 | |
398 | /* Program command buffer base address and size */ |
399 | corblbase = (uint32_t)DMA_DMAADDR(&sc->sc_corb); |
400 | corbubase = (uint32_t)(((uint64_t)DMA_DMAADDR(&sc->sc_corb)) >> 32); |
401 | hda_write4(sc, HDAUDIO_MMIO_CORBLBASE, corblbase); |
402 | hda_write4(sc, HDAUDIO_MMIO_CORBUBASE, corbubase); |
403 | hda_write1(sc, HDAUDIO_MMIO_CORBSIZE, sc->sc_corb.dma_sizereg); |
404 | |
405 | /* Clear the read and write pointers */ |
406 | hda_write2(sc, HDAUDIO_MMIO_CORBRP, HDAUDIO_CORBRP_RP_RESET); |
407 | hda_write2(sc, HDAUDIO_MMIO_CORBRP, 0); |
408 | do { |
409 | hda_delay(10); |
410 | corbrp = hda_read2(sc, HDAUDIO_MMIO_CORBRP); |
411 | } while (--retry > 0 && (corbrp & HDAUDIO_CORBRP_RP_RESET) != 0); |
412 | if (retry == 0) { |
413 | hda_error(sc, "timeout resetting CORB\n" ); |
414 | return ETIME; |
415 | } |
416 | hda_write2(sc, HDAUDIO_MMIO_CORBWP, 0); |
417 | |
418 | return 0; |
419 | } |
420 | |
421 | static int |
422 | hdaudio_corb_stop(struct hdaudio_softc *sc) |
423 | { |
424 | uint8_t corbctl; |
425 | int retry = HDAUDIO_CORB_TIMEOUT; |
426 | |
427 | /* Stop the CORB if necessary */ |
428 | corbctl = hda_read1(sc, HDAUDIO_MMIO_CORBCTL); |
429 | if (corbctl & HDAUDIO_CORBCTL_RUN) { |
430 | corbctl &= ~HDAUDIO_CORBCTL_RUN; |
431 | hda_write4(sc, HDAUDIO_MMIO_CORBCTL, corbctl); |
432 | do { |
433 | hda_delay(10); |
434 | corbctl = hda_read4(sc, HDAUDIO_MMIO_CORBCTL); |
435 | } while (--retry > 0 && (corbctl & HDAUDIO_CORBCTL_RUN) != 0); |
436 | if (retry == 0) { |
437 | hda_error(sc, "timeout stopping CORB\n" ); |
438 | return ETIME; |
439 | } |
440 | } |
441 | |
442 | return 0; |
443 | } |
444 | |
445 | static int |
446 | hdaudio_corb_start(struct hdaudio_softc *sc) |
447 | { |
448 | uint8_t corbctl; |
449 | int retry = HDAUDIO_CORB_TIMEOUT; |
450 | |
451 | /* Start the CORB if necessary */ |
452 | corbctl = hda_read1(sc, HDAUDIO_MMIO_CORBCTL); |
453 | if ((corbctl & HDAUDIO_CORBCTL_RUN) == 0) { |
454 | corbctl |= HDAUDIO_CORBCTL_RUN; |
455 | hda_write4(sc, HDAUDIO_MMIO_CORBCTL, corbctl); |
456 | do { |
457 | hda_delay(10); |
458 | corbctl = hda_read4(sc, HDAUDIO_MMIO_CORBCTL); |
459 | } while (--retry > 0 && (corbctl & HDAUDIO_CORBCTL_RUN) == 0); |
460 | if (retry == 0) { |
461 | hda_error(sc, "timeout starting CORB\n" ); |
462 | return ETIME; |
463 | } |
464 | } |
465 | |
466 | return 0; |
467 | } |
468 | |
469 | static int |
470 | hdaudio_rirb_stop(struct hdaudio_softc *sc) |
471 | { |
472 | uint8_t rirbctl; |
473 | int retry = HDAUDIO_RIRB_TIMEOUT; |
474 | |
475 | /* Stop the RIRB if necessary */ |
476 | rirbctl = hda_read1(sc, HDAUDIO_MMIO_RIRBCTL); |
477 | if (rirbctl & (HDAUDIO_RIRBCTL_RUN|HDAUDIO_RIRBCTL_ROI_EN)) { |
478 | rirbctl &= ~HDAUDIO_RIRBCTL_RUN; |
479 | rirbctl &= ~HDAUDIO_RIRBCTL_ROI_EN; |
480 | hda_write1(sc, HDAUDIO_MMIO_RIRBCTL, rirbctl); |
481 | do { |
482 | hda_delay(10); |
483 | rirbctl = hda_read1(sc, HDAUDIO_MMIO_RIRBCTL); |
484 | } while (--retry > 0 && (rirbctl & HDAUDIO_RIRBCTL_RUN) != 0); |
485 | if (retry == 0) { |
486 | hda_error(sc, "timeout stopping RIRB\n" ); |
487 | return ETIME; |
488 | } |
489 | } |
490 | |
491 | return 0; |
492 | } |
493 | |
494 | static int |
495 | hdaudio_rirb_start(struct hdaudio_softc *sc) |
496 | { |
497 | uint8_t rirbctl; |
498 | int retry = HDAUDIO_RIRB_TIMEOUT; |
499 | |
500 | /* Start the RIRB if necessary */ |
501 | rirbctl = hda_read1(sc, HDAUDIO_MMIO_RIRBCTL); |
502 | if ((rirbctl & (HDAUDIO_RIRBCTL_RUN|HDAUDIO_RIRBCTL_INT_EN)) == 0) { |
503 | rirbctl |= HDAUDIO_RIRBCTL_RUN; |
504 | rirbctl |= HDAUDIO_RIRBCTL_INT_EN; |
505 | hda_write1(sc, HDAUDIO_MMIO_RIRBCTL, rirbctl); |
506 | do { |
507 | hda_delay(10); |
508 | rirbctl = hda_read1(sc, HDAUDIO_MMIO_RIRBCTL); |
509 | } while (--retry > 0 && (rirbctl & HDAUDIO_RIRBCTL_RUN) == 0); |
510 | if (retry == 0) { |
511 | hda_error(sc, "timeout starting RIRB\n" ); |
512 | return ETIME; |
513 | } |
514 | } |
515 | |
516 | return 0; |
517 | } |
518 | |
519 | static int |
520 | hdaudio_rirb_setsize(struct hdaudio_softc *sc) |
521 | { |
522 | uint8_t rirbsize; |
523 | bus_size_t bufsize = 0; |
524 | |
525 | /* |
526 | * The size of the RIRB is programmable to 2, 16, or 256 entries |
527 | * by using the RIRBSIZE register. Choose a size based on the |
528 | * controller capabilities, preferring a larger size when possible. |
529 | */ |
530 | rirbsize = hda_read1(sc, HDAUDIO_MMIO_RIRBSIZE); |
531 | rirbsize &= ~0x3; |
532 | if ((rirbsize >> 4) & 0x4) { |
533 | rirbsize |= 0x2; |
534 | bufsize = 2048; |
535 | } else if ((rirbsize >> 4) & 0x2) { |
536 | rirbsize |= 0x1; |
537 | bufsize = 128; |
538 | } else if ((rirbsize >> 4) & 0x1) { |
539 | rirbsize |= 0x0; |
540 | bufsize = 16; |
541 | } else { |
542 | hda_error(sc, "couldn't configure RIRB size\n" ); |
543 | return ENXIO; |
544 | } |
545 | |
546 | #if defined(HDAUDIO_DEBUG) |
547 | hda_print(sc, "using %d byte RIRB (cap %X)\n" , |
548 | (int)bufsize, rirbsize >> 4); |
549 | #endif |
550 | |
551 | sc->sc_rirb.dma_size = bufsize; |
552 | sc->sc_rirb.dma_sizereg = rirbsize; |
553 | |
554 | return 0; |
555 | } |
556 | |
557 | static int |
558 | hdaudio_rirb_config(struct hdaudio_softc *sc) |
559 | { |
560 | uint32_t rirbubase, rirblbase; |
561 | uint32_t rirbwp; |
562 | int retry = HDAUDIO_RIRB_TIMEOUT; |
563 | |
564 | /* Program command buffer base address and size */ |
565 | rirblbase = (uint32_t)DMA_DMAADDR(&sc->sc_rirb); |
566 | rirbubase = (uint32_t)(((uint64_t)DMA_DMAADDR(&sc->sc_rirb)) >> 32); |
567 | hda_write4(sc, HDAUDIO_MMIO_RIRBLBASE, rirblbase); |
568 | hda_write4(sc, HDAUDIO_MMIO_RIRBUBASE, rirbubase); |
569 | hda_write1(sc, HDAUDIO_MMIO_RIRBSIZE, sc->sc_rirb.dma_sizereg); |
570 | |
571 | /* Clear the write pointer */ |
572 | hda_write2(sc, HDAUDIO_MMIO_RIRBWP, HDAUDIO_RIRBWP_WP_RESET); |
573 | hda_write2(sc, HDAUDIO_MMIO_RIRBWP, 0); |
574 | do { |
575 | hda_delay(10); |
576 | rirbwp = hda_read2(sc, HDAUDIO_MMIO_RIRBWP); |
577 | } while (--retry > 0 && (rirbwp & HDAUDIO_RIRBWP_WP_RESET) != 0); |
578 | if (retry == 0) { |
579 | hda_error(sc, "timeout resetting RIRB\n" ); |
580 | return ETIME; |
581 | } |
582 | sc->sc_rirbrp = 0; |
583 | |
584 | return 0; |
585 | } |
586 | |
587 | static int |
588 | hdaudio_reset(struct hdaudio_softc *sc) |
589 | { |
590 | int retry = HDAUDIO_RESET_TIMEOUT; |
591 | uint32_t gctl; |
592 | int err; |
593 | |
594 | if ((err = hdaudio_rirb_stop(sc)) != 0) { |
595 | hda_error(sc, "couldn't reset because RIRB is busy\n" ); |
596 | return err; |
597 | } |
598 | if ((err = hdaudio_corb_stop(sc)) != 0) { |
599 | hda_error(sc, "couldn't reset because CORB is busy\n" ); |
600 | return err; |
601 | } |
602 | |
603 | /* Disable wake events */ |
604 | hda_write2(sc, HDAUDIO_MMIO_WAKEEN, 0); |
605 | |
606 | /* Disable interrupts */ |
607 | hda_write4(sc, HDAUDIO_MMIO_INTCTL, 0); |
608 | |
609 | /* Clear state change status register */ |
610 | hda_write2(sc, HDAUDIO_MMIO_STATESTS, |
611 | hda_read2(sc, HDAUDIO_MMIO_STATESTS)); |
612 | hda_write1(sc, HDAUDIO_MMIO_RIRBSTS, |
613 | hda_read1(sc, HDAUDIO_MMIO_RIRBSTS)); |
614 | |
615 | /* If the controller isn't in reset state, initiate the transition */ |
616 | gctl = hda_read4(sc, HDAUDIO_MMIO_GCTL); |
617 | if (gctl & HDAUDIO_GCTL_CRST) { |
618 | gctl &= ~HDAUDIO_GCTL_CRST; |
619 | hda_write4(sc, HDAUDIO_MMIO_GCTL, gctl); |
620 | do { |
621 | hda_delay(10); |
622 | gctl = hda_read4(sc, HDAUDIO_MMIO_GCTL); |
623 | } while (--retry > 0 && (gctl & HDAUDIO_GCTL_CRST) != 0); |
624 | if (retry == 0) { |
625 | hda_error(sc, "timeout entering reset state\n" ); |
626 | return ETIME; |
627 | } |
628 | } |
629 | |
630 | /* Now the controller is in reset state, so bring it out */ |
631 | retry = HDAUDIO_RESET_TIMEOUT; |
632 | hda_write4(sc, HDAUDIO_MMIO_GCTL, gctl | HDAUDIO_GCTL_CRST); |
633 | do { |
634 | hda_delay(10); |
635 | gctl = hda_read4(sc, HDAUDIO_MMIO_GCTL); |
636 | } while (--retry > 0 && (gctl & HDAUDIO_GCTL_CRST) == 0); |
637 | if (retry == 0) { |
638 | hda_error(sc, "timeout leaving reset state\n" ); |
639 | return ETIME; |
640 | } |
641 | |
642 | /* Accept unsolicited responses */ |
643 | hda_write4(sc, HDAUDIO_MMIO_GCTL, gctl | HDAUDIO_GCTL_UNSOL_EN); |
644 | |
645 | return 0; |
646 | } |
647 | |
648 | static void |
649 | hdaudio_intr_enable(struct hdaudio_softc *sc) |
650 | { |
651 | hda_write4(sc, HDAUDIO_MMIO_INTSTS, |
652 | hda_read4(sc, HDAUDIO_MMIO_INTSTS)); |
653 | hda_write4(sc, HDAUDIO_MMIO_INTCTL, |
654 | HDAUDIO_INTCTL_GIE | HDAUDIO_INTCTL_CIE); |
655 | } |
656 | |
657 | static void |
658 | hdaudio_intr_disable(struct hdaudio_softc *sc) |
659 | { |
660 | hda_write4(sc, HDAUDIO_MMIO_INTCTL, 0); |
661 | } |
662 | |
663 | static int |
664 | hdaudio_config_print(void *opaque, const char *pnp) |
665 | { |
666 | prop_dictionary_t dict = opaque; |
667 | uint8_t fgtype, nid; |
668 | uint16_t vendor, product; |
669 | const char *type = "unknown" ; |
670 | |
671 | prop_dictionary_get_uint8(dict, "function-group-type" , &fgtype); |
672 | prop_dictionary_get_uint8(dict, "node-id" , &nid); |
673 | prop_dictionary_get_uint16(dict, "vendor-id" , &vendor); |
674 | prop_dictionary_get_uint16(dict, "product-id" , &product); |
675 | if (pnp) { |
676 | if (fgtype == HDAUDIO_GROUP_TYPE_AFG) |
677 | type = "hdafg" ; |
678 | else if (fgtype == HDAUDIO_GROUP_TYPE_VSM_FG) |
679 | type = "hdvsmfg" ; |
680 | |
681 | aprint_normal("%s at %s" , type, pnp); |
682 | } |
683 | aprint_debug(" vendor 0x%04X product 0x%04X nid 0x%02X" , |
684 | vendor, product, nid); |
685 | |
686 | return UNCONF; |
687 | } |
688 | |
689 | static void |
690 | hdaudio_attach_fg(struct hdaudio_function_group *fg, prop_array_t config) |
691 | { |
692 | struct hdaudio_codec *co = fg->fg_codec; |
693 | struct hdaudio_softc *sc = co->co_host; |
694 | prop_dictionary_t args = prop_dictionary_create(); |
695 | uint64_t fgptr = (vaddr_t)fg; |
696 | int locs[1]; |
697 | |
698 | prop_dictionary_set_uint8(args, "function-group-type" , fg->fg_type); |
699 | prop_dictionary_set_uint64(args, "function-group" , fgptr); |
700 | prop_dictionary_set_uint8(args, "node-id" , fg->fg_nid); |
701 | prop_dictionary_set_uint16(args, "vendor-id" , fg->fg_vendor); |
702 | prop_dictionary_set_uint16(args, "product-id" , fg->fg_product); |
703 | if (config) |
704 | prop_dictionary_set(args, "pin-config" , config); |
705 | |
706 | locs[0] = fg->fg_nid; |
707 | |
708 | fg->fg_device = config_found_sm_loc(sc->sc_dev, "hdaudiobus" , |
709 | locs, args, hdaudio_config_print, config_stdsubmatch); |
710 | |
711 | prop_object_release(args); |
712 | } |
713 | |
714 | static void |
715 | hdaudio_codec_attach(struct hdaudio_codec *co) |
716 | { |
717 | struct hdaudio_function_group *fg; |
718 | uint32_t vid, snc, fgrp; |
719 | int starting_node, num_nodes, nid; |
720 | |
721 | if (co->co_valid == false) |
722 | return; |
723 | |
724 | vid = hdaudio_command(co, 0, CORB_GET_PARAMETER, COP_VENDOR_ID); |
725 | snc = hdaudio_command(co, 0, CORB_GET_PARAMETER, |
726 | COP_SUBORDINATE_NODE_COUNT); |
727 | |
728 | /* make sure the vendor and product IDs are valid */ |
729 | if (vid == 0xffffffff || vid == 0x00000000) |
730 | return; |
731 | |
732 | #ifdef HDAUDIO_DEBUG |
733 | struct hdaudio_softc *sc = co->co_host; |
734 | uint32_t rid = hdaudio_command(co, 0, CORB_GET_PARAMETER, |
735 | COP_REVISION_ID); |
736 | hda_print(sc, "Codec%02X: %04X:%04X HDA %d.%d rev %d stepping %d\n" , |
737 | co->co_addr, vid >> 16, vid & 0xffff, |
738 | (rid >> 20) & 0xf, (rid >> 16) & 0xf, |
739 | (rid >> 8) & 0xff, rid & 0xff); |
740 | #endif |
741 | starting_node = (snc >> 16) & 0xff; |
742 | num_nodes = snc & 0xff; |
743 | |
744 | co->co_nfg = num_nodes; |
745 | co->co_fg = kmem_zalloc(co->co_nfg * sizeof(*co->co_fg), KM_SLEEP); |
746 | |
747 | for (nid = starting_node; nid < starting_node + num_nodes; nid++) { |
748 | fg = &co->co_fg[nid - starting_node]; |
749 | fg->fg_codec = co; |
750 | fg->fg_nid = nid; |
751 | fg->fg_vendor = vid >> 16; |
752 | fg->fg_product = vid & 0xffff; |
753 | |
754 | fgrp = hdaudio_command(co, nid, CORB_GET_PARAMETER, |
755 | COP_FUNCTION_GROUP_TYPE); |
756 | switch (fgrp & 0xff) { |
757 | case 0x01: /* Audio Function Group */ |
758 | fg->fg_type = HDAUDIO_GROUP_TYPE_AFG; |
759 | break; |
760 | case 0x02: /* Vendor Specific Modem Function Group */ |
761 | fg->fg_type = HDAUDIO_GROUP_TYPE_VSM_FG; |
762 | break; |
763 | default: |
764 | /* Function group type not supported */ |
765 | fg->fg_type = HDAUDIO_GROUP_TYPE_UNKNOWN; |
766 | break; |
767 | } |
768 | hdaudio_attach_fg(fg, NULL); |
769 | } |
770 | } |
771 | |
772 | int |
773 | hdaudio_stream_tag(struct hdaudio_stream *st) |
774 | { |
775 | int ret = 0; |
776 | |
777 | switch (st->st_type) { |
778 | case HDAUDIO_STREAM_ISS: |
779 | ret = 1; |
780 | break; |
781 | case HDAUDIO_STREAM_OSS: |
782 | ret = 2; |
783 | break; |
784 | case HDAUDIO_STREAM_BSS: |
785 | ret = 3; |
786 | break; |
787 | } |
788 | |
789 | return ret; |
790 | } |
791 | |
792 | int |
793 | hdaudio_attach(device_t dev, struct hdaudio_softc *sc) |
794 | { |
795 | int err, i; |
796 | |
797 | KASSERT(sc->sc_memvalid == true); |
798 | |
799 | sc->sc_dev = dev; |
800 | mutex_init(&sc->sc_corb_mtx, MUTEX_DEFAULT, IPL_AUDIO); |
801 | mutex_init(&sc->sc_stream_mtx, MUTEX_DEFAULT, IPL_AUDIO); |
802 | |
803 | hdaudio_init(sc); |
804 | |
805 | /* |
806 | * Put the controller into a known state by entering and leaving |
807 | * CRST as necessary. |
808 | */ |
809 | if ((err = hdaudio_reset(sc)) != 0) |
810 | goto fail; |
811 | |
812 | /* |
813 | * From the spec: |
814 | * |
815 | * Must wait 250us after reading CRST as a 1 before assuming that |
816 | * codecs have all made status change requests and have been |
817 | * registered by the controller. |
818 | * |
819 | * In reality, we need to wait longer than this. |
820 | */ |
821 | hda_delay(HDAUDIO_CODEC_DELAY); |
822 | if (hdaudio_codec_probe(sc) == 0) { |
823 | hda_error(sc, "no codecs found\n" ); |
824 | err = ENODEV; |
825 | goto fail; |
826 | } |
827 | |
828 | /* |
829 | * Ensure that the device is in a known state |
830 | */ |
831 | hda_write2(sc, HDAUDIO_MMIO_STATESTS, HDAUDIO_STATESTS_SDIWAKE); |
832 | hda_write1(sc, HDAUDIO_MMIO_RIRBSTS, |
833 | HDAUDIO_RIRBSTS_RIRBOIS | HDAUDIO_RIRBSTS_RINTFL); |
834 | hda_write4(sc, HDAUDIO_MMIO_INTSTS, |
835 | hda_read4(sc, HDAUDIO_MMIO_INTSTS)); |
836 | hda_write4(sc, HDAUDIO_MMIO_DPLBASE, 0); |
837 | hda_write4(sc, HDAUDIO_MMIO_DPUBASE, 0); |
838 | |
839 | /* |
840 | * Initialize the CORB. First negotiate a command buffer size, |
841 | * then allocate and configure it. |
842 | */ |
843 | if ((err = hdaudio_corb_setsize(sc)) != 0) |
844 | goto fail; |
845 | if ((err = hdaudio_dma_alloc(sc, &sc->sc_corb, BUS_DMA_WRITE)) != 0) |
846 | goto fail; |
847 | if ((err = hdaudio_corb_config(sc)) != 0) |
848 | goto fail; |
849 | |
850 | /* |
851 | * Initialize the RIRB. |
852 | */ |
853 | if ((err = hdaudio_rirb_setsize(sc)) != 0) |
854 | goto fail; |
855 | if ((err = hdaudio_dma_alloc(sc, &sc->sc_rirb, BUS_DMA_READ)) != 0) |
856 | goto fail; |
857 | if ((err = hdaudio_rirb_config(sc)) != 0) |
858 | goto fail; |
859 | |
860 | /* |
861 | * Start the CORB and RIRB |
862 | */ |
863 | if ((err = hdaudio_corb_start(sc)) != 0) |
864 | goto fail; |
865 | if ((err = hdaudio_rirb_start(sc)) != 0) |
866 | goto fail; |
867 | |
868 | /* |
869 | * Identify and attach discovered codecs |
870 | */ |
871 | for (i = 0; i < HDAUDIO_MAX_CODECS; i++) |
872 | hdaudio_codec_attach(&sc->sc_codec[i]); |
873 | |
874 | /* |
875 | * Enable interrupts |
876 | */ |
877 | hdaudio_intr_enable(sc); |
878 | |
879 | fail: |
880 | if (err) |
881 | hda_error(sc, "device driver failed to attach\n" ); |
882 | return err; |
883 | } |
884 | |
885 | int |
886 | hdaudio_detach(struct hdaudio_softc *sc, int flags) |
887 | { |
888 | int error; |
889 | |
890 | /* Disable interrupts */ |
891 | hdaudio_intr_disable(sc); |
892 | |
893 | error = config_detach_children(sc->sc_dev, flags); |
894 | if (error != 0) { |
895 | hdaudio_intr_enable(sc); |
896 | return error; |
897 | } |
898 | |
899 | mutex_destroy(&sc->sc_corb_mtx); |
900 | mutex_destroy(&sc->sc_stream_mtx); |
901 | |
902 | hdaudio_dma_free(sc, &sc->sc_corb); |
903 | hdaudio_dma_free(sc, &sc->sc_rirb); |
904 | |
905 | return 0; |
906 | } |
907 | |
908 | bool |
909 | hdaudio_resume(struct hdaudio_softc *sc) |
910 | { |
911 | if (hdaudio_reset(sc) != 0) |
912 | return false; |
913 | |
914 | hda_delay(HDAUDIO_CODEC_DELAY); |
915 | |
916 | /* |
917 | * Ensure that the device is in a known state |
918 | */ |
919 | hda_write2(sc, HDAUDIO_MMIO_STATESTS, HDAUDIO_STATESTS_SDIWAKE); |
920 | hda_write1(sc, HDAUDIO_MMIO_RIRBSTS, |
921 | HDAUDIO_RIRBSTS_RIRBOIS | HDAUDIO_RIRBSTS_RINTFL); |
922 | hda_write4(sc, HDAUDIO_MMIO_INTSTS, |
923 | hda_read4(sc, HDAUDIO_MMIO_INTSTS)); |
924 | hda_write4(sc, HDAUDIO_MMIO_DPLBASE, 0); |
925 | hda_write4(sc, HDAUDIO_MMIO_DPUBASE, 0); |
926 | |
927 | if (hdaudio_corb_config(sc) != 0) |
928 | return false; |
929 | if (hdaudio_rirb_config(sc) != 0) |
930 | return false; |
931 | if (hdaudio_corb_start(sc) != 0) |
932 | return false; |
933 | if (hdaudio_rirb_start(sc) != 0) |
934 | return false; |
935 | |
936 | hdaudio_intr_enable(sc); |
937 | |
938 | return true; |
939 | } |
940 | |
941 | int |
942 | hdaudio_rescan(struct hdaudio_softc *sc, const char *ifattr, const int *locs) |
943 | { |
944 | struct hdaudio_codec *co; |
945 | struct hdaudio_function_group *fg; |
946 | unsigned int codec; |
947 | |
948 | if (!ifattr_match(ifattr, "hdaudiobus" )) |
949 | return 0; |
950 | |
951 | for (codec = 0; codec < HDAUDIO_MAX_CODECS; codec++) { |
952 | co = &sc->sc_codec[codec]; |
953 | fg = co->co_fg; |
954 | if (!co->co_valid || fg == NULL) |
955 | continue; |
956 | if (fg->fg_device) |
957 | continue; |
958 | hdaudio_attach_fg(fg, NULL); |
959 | } |
960 | |
961 | return 0; |
962 | } |
963 | |
964 | void |
965 | hdaudio_childdet(struct hdaudio_softc *sc, device_t child) |
966 | { |
967 | struct hdaudio_codec *co; |
968 | struct hdaudio_function_group *fg; |
969 | unsigned int codec; |
970 | |
971 | for (codec = 0; codec < HDAUDIO_MAX_CODECS; codec++) { |
972 | co = &sc->sc_codec[codec]; |
973 | fg = co->co_fg; |
974 | if (!co->co_valid || fg == NULL) |
975 | continue; |
976 | if (fg->fg_device == child) |
977 | fg->fg_device = NULL; |
978 | } |
979 | } |
980 | |
981 | int |
982 | hdaudio_intr(struct hdaudio_softc *sc) |
983 | { |
984 | struct hdaudio_stream *st; |
985 | uint32_t intsts, stream_mask; |
986 | int streamid = 0; |
987 | uint8_t rirbsts; |
988 | |
989 | intsts = hda_read4(sc, HDAUDIO_MMIO_INTSTS); |
990 | if (!(intsts & HDAUDIO_INTSTS_GIS)) |
991 | return 0; |
992 | |
993 | if (intsts & HDAUDIO_INTSTS_CIS) { |
994 | rirbsts = hda_read1(sc, HDAUDIO_MMIO_RIRBSTS); |
995 | if (rirbsts & HDAUDIO_RIRBSTS_RINTFL) { |
996 | mutex_enter(&sc->sc_corb_mtx); |
997 | hdaudio_rirb_dequeue(sc, true); |
998 | mutex_exit(&sc->sc_corb_mtx); |
999 | } |
1000 | if (rirbsts & (HDAUDIO_RIRBSTS_RIRBOIS|HDAUDIO_RIRBSTS_RINTFL)) |
1001 | hda_write1(sc, HDAUDIO_MMIO_RIRBSTS, rirbsts); |
1002 | hda_write4(sc, HDAUDIO_MMIO_INTSTS, HDAUDIO_INTSTS_CIS); |
1003 | } |
1004 | if (intsts & HDAUDIO_INTSTS_SIS_MASK) { |
1005 | mutex_enter(&sc->sc_stream_mtx); |
1006 | stream_mask = intsts & sc->sc_stream_mask; |
1007 | while (streamid < HDAUDIO_MAX_STREAMS && stream_mask != 0) { |
1008 | st = &sc->sc_stream[streamid++]; |
1009 | if ((stream_mask & 1) != 0 && st->st_intr) { |
1010 | st->st_intr(st); |
1011 | } |
1012 | stream_mask >>= 1; |
1013 | } |
1014 | mutex_exit(&sc->sc_stream_mtx); |
1015 | hda_write4(sc, HDAUDIO_MMIO_INTSTS, HDAUDIO_INTSTS_SIS_MASK); |
1016 | } |
1017 | |
1018 | return 1; |
1019 | } |
1020 | |
1021 | struct hdaudio_stream * |
1022 | hdaudio_stream_establish(struct hdaudio_softc *sc, |
1023 | enum hdaudio_stream_type type, int (*intr)(struct hdaudio_stream *), |
1024 | void *cookie) |
1025 | { |
1026 | struct hdaudio_stream *st; |
1027 | struct hdaudio_dma dma; |
1028 | int i, err; |
1029 | |
1030 | dma.dma_size = sizeof(struct hdaudio_bdl_entry) * HDAUDIO_BDL_MAX; |
1031 | dma.dma_sizereg = 0; |
1032 | err = hdaudio_dma_alloc(sc, &dma, BUS_DMA_COHERENT | BUS_DMA_NOCACHE); |
1033 | if (err) |
1034 | return NULL; |
1035 | |
1036 | mutex_enter(&sc->sc_stream_mtx); |
1037 | for (i = 0; i < HDAUDIO_MAX_STREAMS; i++) { |
1038 | st = &sc->sc_stream[i]; |
1039 | if (st->st_enable == false) |
1040 | break; |
1041 | if (st->st_type != type) |
1042 | continue; |
1043 | if (sc->sc_stream_mask & (1 << i)) |
1044 | continue; |
1045 | |
1046 | /* Allocate stream */ |
1047 | st->st_bdl = dma; |
1048 | st->st_intr = intr; |
1049 | st->st_cookie = cookie; |
1050 | sc->sc_stream_mask |= (1 << i); |
1051 | mutex_exit(&sc->sc_stream_mtx); |
1052 | return st; |
1053 | } |
1054 | mutex_exit(&sc->sc_stream_mtx); |
1055 | |
1056 | /* No streams of requested type available */ |
1057 | hdaudio_dma_free(sc, &dma); |
1058 | return NULL; |
1059 | } |
1060 | |
1061 | void |
1062 | hdaudio_stream_disestablish(struct hdaudio_stream *st) |
1063 | { |
1064 | struct hdaudio_softc *sc = st->st_host; |
1065 | struct hdaudio_dma dma; |
1066 | |
1067 | KASSERT(sc->sc_stream_mask & (1 << st->st_shift)); |
1068 | |
1069 | mutex_enter(&sc->sc_stream_mtx); |
1070 | sc->sc_stream_mask &= ~(1 << st->st_shift); |
1071 | st->st_intr = NULL; |
1072 | st->st_cookie = NULL; |
1073 | dma = st->st_bdl; |
1074 | st->st_bdl.dma_valid = false; |
1075 | mutex_exit(&sc->sc_stream_mtx); |
1076 | |
1077 | /* Can't bus_dmamem_unmap while holding a mutex. */ |
1078 | hdaudio_dma_free(sc, &dma); |
1079 | } |
1080 | |
1081 | /* |
1082 | * Convert most of audio_params_t to stream fmt descriptor; noticably missing |
1083 | * is the # channels bits, as this is encoded differently in codec and |
1084 | * stream descriptors. |
1085 | * |
1086 | * TODO: validate that the stream and selected codecs can handle the fmt |
1087 | */ |
1088 | uint16_t |
1089 | hdaudio_stream_param(struct hdaudio_stream *st, const audio_params_t *param) |
1090 | { |
1091 | uint16_t fmt = 0; |
1092 | |
1093 | switch (param->encoding) { |
1094 | case AUDIO_ENCODING_AC3: |
1095 | fmt |= HDAUDIO_FMT_TYPE_NONPCM; |
1096 | break; |
1097 | default: |
1098 | fmt |= HDAUDIO_FMT_TYPE_PCM; |
1099 | break; |
1100 | } |
1101 | |
1102 | switch (param->sample_rate) { |
1103 | case 8000: |
1104 | fmt |= HDAUDIO_FMT_BASE_48 | HDAUDIO_FMT_MULT(1) | |
1105 | HDAUDIO_FMT_DIV(6); |
1106 | break; |
1107 | case 11025: |
1108 | fmt |= HDAUDIO_FMT_BASE_44 | HDAUDIO_FMT_MULT(1) | |
1109 | HDAUDIO_FMT_DIV(4); |
1110 | break; |
1111 | case 16000: |
1112 | fmt |= HDAUDIO_FMT_BASE_48 | HDAUDIO_FMT_MULT(1) | |
1113 | HDAUDIO_FMT_DIV(3); |
1114 | break; |
1115 | case 22050: |
1116 | fmt |= HDAUDIO_FMT_BASE_44 | HDAUDIO_FMT_MULT(1) | |
1117 | HDAUDIO_FMT_DIV(2); |
1118 | break; |
1119 | case 32000: |
1120 | fmt |= HDAUDIO_FMT_BASE_48 | HDAUDIO_FMT_MULT(2) | |
1121 | HDAUDIO_FMT_DIV(3); |
1122 | break; |
1123 | case 44100: |
1124 | fmt |= HDAUDIO_FMT_BASE_44 | HDAUDIO_FMT_MULT(1); |
1125 | break; |
1126 | case 48000: |
1127 | fmt |= HDAUDIO_FMT_BASE_48 | HDAUDIO_FMT_MULT(1); |
1128 | break; |
1129 | case 88200: |
1130 | fmt |= HDAUDIO_FMT_BASE_44 | HDAUDIO_FMT_MULT(2); |
1131 | break; |
1132 | case 96000: |
1133 | fmt |= HDAUDIO_FMT_BASE_48 | HDAUDIO_FMT_MULT(2); |
1134 | break; |
1135 | case 176400: |
1136 | fmt |= HDAUDIO_FMT_BASE_44 | HDAUDIO_FMT_MULT(4); |
1137 | break; |
1138 | case 192000: |
1139 | fmt |= HDAUDIO_FMT_BASE_48 | HDAUDIO_FMT_MULT(4); |
1140 | break; |
1141 | default: |
1142 | return 0; |
1143 | } |
1144 | |
1145 | if (param->precision == 16 && param->validbits == 8) |
1146 | fmt |= HDAUDIO_FMT_BITS_8_16; |
1147 | else if (param->precision == 16 && param->validbits == 16) |
1148 | fmt |= HDAUDIO_FMT_BITS_16_16; |
1149 | else if (param->precision == 32 && param->validbits == 20) |
1150 | fmt |= HDAUDIO_FMT_BITS_20_32; |
1151 | else if (param->precision == 32 && param->validbits == 24) |
1152 | fmt |= HDAUDIO_FMT_BITS_24_32; |
1153 | else if (param->precision == 32 && param->validbits == 32) |
1154 | fmt |= HDAUDIO_FMT_BITS_32_32; |
1155 | else |
1156 | return 0; |
1157 | |
1158 | return fmt; |
1159 | } |
1160 | |
1161 | void |
1162 | hdaudio_stream_reset(struct hdaudio_stream *st) |
1163 | { |
1164 | struct hdaudio_softc *sc = st->st_host; |
1165 | int snum = st->st_shift; |
1166 | int retry; |
1167 | uint8_t ctl0; |
1168 | |
1169 | ctl0 = hda_read1(sc, HDAUDIO_SD_CTL0(snum)); |
1170 | ctl0 |= HDAUDIO_CTL_SRST; |
1171 | hda_write1(sc, HDAUDIO_SD_CTL0(snum), ctl0); |
1172 | |
1173 | retry = HDAUDIO_RESET_TIMEOUT; |
1174 | do { |
1175 | ctl0 = hda_read1(sc, HDAUDIO_SD_CTL0(snum)); |
1176 | if (ctl0 & HDAUDIO_CTL_SRST) |
1177 | break; |
1178 | hda_delay(10); |
1179 | } while (--retry > 0); |
1180 | if (retry == 0) { |
1181 | hda_error(sc, "timeout entering stream reset state\n" ); |
1182 | return; |
1183 | } |
1184 | |
1185 | ctl0 &= ~HDAUDIO_CTL_SRST; |
1186 | hda_write1(sc, HDAUDIO_SD_CTL0(snum), ctl0); |
1187 | |
1188 | retry = HDAUDIO_RESET_TIMEOUT; |
1189 | do { |
1190 | ctl0 = hda_read1(sc, HDAUDIO_SD_CTL0(snum)); |
1191 | if (!(ctl0 & HDAUDIO_CTL_SRST)) |
1192 | break; |
1193 | hda_delay(10); |
1194 | } while (--retry > 0); |
1195 | if (retry == 0) { |
1196 | hda_error(sc, "timeout leaving stream reset state\n" ); |
1197 | return; |
1198 | } |
1199 | } |
1200 | |
1201 | void |
1202 | hdaudio_stream_start(struct hdaudio_stream *st, int blksize, |
1203 | bus_size_t dmasize, const audio_params_t *params) |
1204 | { |
1205 | struct hdaudio_softc *sc = st->st_host; |
1206 | struct hdaudio_bdl_entry *bdl; |
1207 | uint64_t dmaaddr; |
1208 | uint32_t intctl; |
1209 | uint16_t fmt; |
1210 | uint8_t ctl0, ctl2; |
1211 | int cnt, snum = st->st_shift; |
1212 | |
1213 | KASSERT(sc->sc_stream_mask & (1 << st->st_shift)); |
1214 | KASSERT(st->st_data.dma_valid == true); |
1215 | KASSERT(st->st_bdl.dma_valid == true); |
1216 | |
1217 | hdaudio_stream_stop(st); |
1218 | hdaudio_stream_reset(st); |
1219 | |
1220 | /* |
1221 | * Configure buffer descriptor list |
1222 | */ |
1223 | dmaaddr = DMA_DMAADDR(&st->st_data); |
1224 | bdl = DMA_KERNADDR(&st->st_bdl); |
1225 | for (cnt = 0; cnt < HDAUDIO_BDL_MAX; cnt++) { |
1226 | bdl[cnt].address_lo = (uint32_t)dmaaddr; |
1227 | bdl[cnt].address_hi = dmaaddr >> 32; |
1228 | bdl[cnt].length = blksize; |
1229 | bdl[cnt].flags = HDAUDIO_BDL_ENTRY_IOC; |
1230 | dmaaddr += blksize; |
1231 | if (dmaaddr >= DMA_DMAADDR(&st->st_data) + dmasize) { |
1232 | cnt++; |
1233 | break; |
1234 | } |
1235 | } |
1236 | |
1237 | /* |
1238 | * Program buffer descriptor list |
1239 | */ |
1240 | dmaaddr = DMA_DMAADDR(&st->st_bdl); |
1241 | hda_write4(sc, HDAUDIO_SD_BDPL(snum), (uint32_t)dmaaddr); |
1242 | hda_write4(sc, HDAUDIO_SD_BDPU(snum), (uint32_t)(dmaaddr >> 32)); |
1243 | hda_write2(sc, HDAUDIO_SD_LVI(snum), (cnt - 1) & 0xff); |
1244 | |
1245 | /* |
1246 | * Program cyclic buffer length |
1247 | */ |
1248 | hda_write4(sc, HDAUDIO_SD_CBL(snum), dmasize); |
1249 | |
1250 | /* |
1251 | * Program stream number (tag). Although controller hardware is |
1252 | * capable of transmitting any stream number (0-15), by convention |
1253 | * stream 0 is reserved as unused by software, so that converters |
1254 | * whose stream numbers have been reset to 0 do not unintentionally |
1255 | * decode data not intended for them. |
1256 | */ |
1257 | ctl2 = hda_read1(sc, HDAUDIO_SD_CTL2(snum)); |
1258 | ctl2 &= ~0xf0; |
1259 | ctl2 |= hdaudio_stream_tag(st) << 4; |
1260 | hda_write1(sc, HDAUDIO_SD_CTL2(snum), ctl2); |
1261 | |
1262 | /* |
1263 | * Program stream format |
1264 | */ |
1265 | fmt = hdaudio_stream_param(st, params) | |
1266 | HDAUDIO_FMT_CHAN(params->channels); |
1267 | hda_write2(sc, HDAUDIO_SD_FMT(snum), fmt); |
1268 | |
1269 | /* |
1270 | * Switch on interrupts for this stream |
1271 | */ |
1272 | intctl = hda_read4(sc, HDAUDIO_MMIO_INTCTL); |
1273 | intctl |= (1 << st->st_shift); |
1274 | hda_write4(sc, HDAUDIO_MMIO_INTCTL, intctl); |
1275 | |
1276 | /* |
1277 | * Start running the stream |
1278 | */ |
1279 | ctl0 = hda_read1(sc, HDAUDIO_SD_CTL0(snum)); |
1280 | ctl0 |= HDAUDIO_CTL_DEIE | HDAUDIO_CTL_FEIE | HDAUDIO_CTL_IOCE | |
1281 | HDAUDIO_CTL_RUN; |
1282 | hda_write1(sc, HDAUDIO_SD_CTL0(snum), ctl0); |
1283 | } |
1284 | |
1285 | void |
1286 | hdaudio_stream_stop(struct hdaudio_stream *st) |
1287 | { |
1288 | struct hdaudio_softc *sc = st->st_host; |
1289 | uint32_t intctl; |
1290 | uint8_t ctl0; |
1291 | int snum = st->st_shift; |
1292 | |
1293 | /* |
1294 | * Stop running the stream |
1295 | */ |
1296 | ctl0 = hda_read1(sc, HDAUDIO_SD_CTL0(snum)); |
1297 | ctl0 &= ~(HDAUDIO_CTL_DEIE | HDAUDIO_CTL_FEIE | HDAUDIO_CTL_IOCE | |
1298 | HDAUDIO_CTL_RUN); |
1299 | hda_write1(sc, HDAUDIO_SD_CTL0(snum), ctl0); |
1300 | |
1301 | /* |
1302 | * Switch off interrupts for this stream |
1303 | */ |
1304 | intctl = hda_read4(sc, HDAUDIO_MMIO_INTCTL); |
1305 | intctl &= ~(1 << st->st_shift); |
1306 | hda_write4(sc, HDAUDIO_MMIO_INTCTL, intctl); |
1307 | } |
1308 | |
1309 | /* |
1310 | * /dev/hdaudioN interface |
1311 | */ |
1312 | |
1313 | static const char * |
1314 | hdaudioioctl_fgrp_to_cstr(enum function_group_type type) |
1315 | { |
1316 | switch (type) { |
1317 | case HDAUDIO_GROUP_TYPE_AFG: |
1318 | return "afg" ; |
1319 | case HDAUDIO_GROUP_TYPE_VSM_FG: |
1320 | return "vsmfg" ; |
1321 | default: |
1322 | return "unknown" ; |
1323 | } |
1324 | } |
1325 | |
1326 | static struct hdaudio_function_group * |
1327 | hdaudioioctl_fgrp_lookup(struct hdaudio_softc *sc, int codecid, int nid) |
1328 | { |
1329 | struct hdaudio_codec *co; |
1330 | struct hdaudio_function_group *fg = NULL; |
1331 | int i; |
1332 | |
1333 | if (codecid < 0 || codecid >= HDAUDIO_MAX_CODECS) |
1334 | return NULL; |
1335 | co = &sc->sc_codec[codecid]; |
1336 | if (co->co_valid == false) |
1337 | return NULL; |
1338 | |
1339 | for (i = 0; i < co->co_nfg; i++) |
1340 | if (co->co_fg[i].fg_nid == nid) { |
1341 | fg = &co->co_fg[i]; |
1342 | break; |
1343 | } |
1344 | |
1345 | return fg; |
1346 | } |
1347 | |
1348 | static int |
1349 | hdaudioioctl_fgrp_info(struct hdaudio_softc *sc, prop_dictionary_t request, |
1350 | prop_dictionary_t response) |
1351 | { |
1352 | struct hdaudio_codec *co; |
1353 | struct hdaudio_function_group *fg; |
1354 | prop_array_t array; |
1355 | prop_dictionary_t dict; |
1356 | int codecid, fgid; |
1357 | |
1358 | array = prop_array_create(); |
1359 | if (array == NULL) |
1360 | return ENOMEM; |
1361 | |
1362 | for (codecid = 0; codecid < HDAUDIO_MAX_CODECS; codecid++) { |
1363 | co = &sc->sc_codec[codecid]; |
1364 | if (co->co_valid == false) |
1365 | continue; |
1366 | for (fgid = 0; fgid < co->co_nfg; fgid++) { |
1367 | fg = &co->co_fg[fgid]; |
1368 | dict = prop_dictionary_create(); |
1369 | if (dict == NULL) |
1370 | return ENOMEM; |
1371 | prop_dictionary_set_cstring_nocopy(dict, |
1372 | "type" , hdaudioioctl_fgrp_to_cstr(fg->fg_type)); |
1373 | prop_dictionary_set_int16(dict, "nid" , fg->fg_nid); |
1374 | prop_dictionary_set_int16(dict, "codecid" , codecid); |
1375 | prop_dictionary_set_uint16(dict, "vendor-id" , |
1376 | fg->fg_vendor); |
1377 | prop_dictionary_set_uint16(dict, "product-id" , |
1378 | fg->fg_product); |
1379 | prop_dictionary_set_uint32(dict, "subsystem-id" , |
1380 | sc->sc_subsystem); |
1381 | if (fg->fg_device) |
1382 | prop_dictionary_set_cstring(dict, "device" , |
1383 | device_xname(fg->fg_device)); |
1384 | else |
1385 | prop_dictionary_set_cstring_nocopy(dict, |
1386 | "device" , "<none>" ); |
1387 | prop_array_add(array, dict); |
1388 | } |
1389 | } |
1390 | |
1391 | prop_dictionary_set(response, "function-group-info" , array); |
1392 | return 0; |
1393 | } |
1394 | |
1395 | static int |
1396 | hdaudioioctl_fgrp_getconfig(struct hdaudio_softc *sc, |
1397 | prop_dictionary_t request, prop_dictionary_t response) |
1398 | { |
1399 | struct hdaudio_function_group *fg; |
1400 | prop_dictionary_t dict; |
1401 | prop_array_t array; |
1402 | uint32_t nodecnt, wcap, config; |
1403 | int16_t codecid, nid, i; |
1404 | int startnode, endnode; |
1405 | |
1406 | if (!prop_dictionary_get_int16(request, "codecid" , &codecid) || |
1407 | !prop_dictionary_get_int16(request, "nid" , &nid)) |
1408 | return EINVAL; |
1409 | |
1410 | fg = hdaudioioctl_fgrp_lookup(sc, codecid, nid); |
1411 | if (fg == NULL) |
1412 | return ENODEV; |
1413 | |
1414 | array = prop_array_create(); |
1415 | if (array == NULL) |
1416 | return ENOMEM; |
1417 | |
1418 | nodecnt = hdaudio_command(fg->fg_codec, fg->fg_nid, |
1419 | CORB_GET_PARAMETER, COP_SUBORDINATE_NODE_COUNT); |
1420 | startnode = COP_NODECNT_STARTNODE(nodecnt); |
1421 | endnode = startnode + COP_NODECNT_NUMNODES(nodecnt); |
1422 | |
1423 | for (i = startnode; i < endnode; i++) { |
1424 | wcap = hdaudio_command(fg->fg_codec, i, |
1425 | CORB_GET_PARAMETER, COP_AUDIO_WIDGET_CAPABILITIES); |
1426 | if (COP_AWCAP_TYPE(wcap) != COP_AWCAP_TYPE_PIN_COMPLEX) |
1427 | continue; |
1428 | config = hdaudio_command(fg->fg_codec, i, |
1429 | CORB_GET_CONFIGURATION_DEFAULT, 0); |
1430 | dict = prop_dictionary_create(); |
1431 | if (dict == NULL) |
1432 | return ENOMEM; |
1433 | prop_dictionary_set_int16(dict, "nid" , i); |
1434 | prop_dictionary_set_uint32(dict, "config" , config); |
1435 | prop_array_add(array, dict); |
1436 | } |
1437 | |
1438 | prop_dictionary_set(response, "pin-config" , array); |
1439 | |
1440 | return 0; |
1441 | } |
1442 | |
1443 | static int |
1444 | hdaudioioctl_fgrp_setconfig(struct hdaudio_softc *sc, |
1445 | prop_dictionary_t request, prop_dictionary_t response) |
1446 | { |
1447 | struct hdaudio_function_group *fg; |
1448 | prop_array_t config; |
1449 | int16_t codecid, nid; |
1450 | int err; |
1451 | |
1452 | if (!prop_dictionary_get_int16(request, "codecid" , &codecid) || |
1453 | !prop_dictionary_get_int16(request, "nid" , &nid)) |
1454 | return EINVAL; |
1455 | |
1456 | fg = hdaudioioctl_fgrp_lookup(sc, codecid, nid); |
1457 | if (fg == NULL) |
1458 | return ENODEV; |
1459 | |
1460 | if (fg->fg_device) { |
1461 | err = config_detach(fg->fg_device, 0); |
1462 | if (err) |
1463 | return err; |
1464 | fg->fg_device = NULL; |
1465 | } |
1466 | |
1467 | /* "pin-config" may be NULL, this means "use BIOS configuration" */ |
1468 | config = prop_dictionary_get(request, "pin-config" ); |
1469 | if (config && prop_object_type(config) != PROP_TYPE_ARRAY) { |
1470 | prop_object_release(config); |
1471 | return EINVAL; |
1472 | } |
1473 | hdaudio_attach_fg(fg, config); |
1474 | if (config) |
1475 | prop_object_release(config); |
1476 | |
1477 | return 0; |
1478 | } |
1479 | |
1480 | static int |
1481 | hdaudio_dispatch_fgrp_ioctl(struct hdaudio_softc *sc, u_long cmd, |
1482 | prop_dictionary_t request, prop_dictionary_t response) |
1483 | { |
1484 | struct hdaudio_function_group *fg; |
1485 | int (*infocb)(void *, prop_dictionary_t, prop_dictionary_t); |
1486 | prop_dictionary_t fgrp_dict; |
1487 | uint64_t info_fn; |
1488 | int16_t codecid, nid; |
1489 | void *fgrp_sc; |
1490 | bool rv; |
1491 | int err; |
1492 | |
1493 | if (!prop_dictionary_get_int16(request, "codecid" , &codecid) || |
1494 | !prop_dictionary_get_int16(request, "nid" , &nid)) |
1495 | return EINVAL; |
1496 | |
1497 | fg = hdaudioioctl_fgrp_lookup(sc, codecid, nid); |
1498 | if (fg == NULL) |
1499 | return ENODEV; |
1500 | if (fg->fg_device == NULL) |
1501 | return ENXIO; |
1502 | fgrp_sc = device_private(fg->fg_device); |
1503 | fgrp_dict = device_properties(fg->fg_device); |
1504 | |
1505 | switch (fg->fg_type) { |
1506 | case HDAUDIO_GROUP_TYPE_AFG: |
1507 | switch (cmd) { |
1508 | case HDAUDIO_FGRP_CODEC_INFO: |
1509 | rv = prop_dictionary_get_uint64(fgrp_dict, |
1510 | "codecinfo-callback" , &info_fn); |
1511 | if (!rv) |
1512 | return ENXIO; |
1513 | infocb = (void *)(uintptr_t)info_fn; |
1514 | err = infocb(fgrp_sc, request, response); |
1515 | break; |
1516 | case HDAUDIO_FGRP_WIDGET_INFO: |
1517 | rv = prop_dictionary_get_uint64(fgrp_dict, |
1518 | "widgetinfo-callback" , &info_fn); |
1519 | if (!rv) |
1520 | return ENXIO; |
1521 | infocb = (void *)(uintptr_t)info_fn; |
1522 | err = infocb(fgrp_sc, request, response); |
1523 | break; |
1524 | default: |
1525 | err = EINVAL; |
1526 | break; |
1527 | } |
1528 | break; |
1529 | |
1530 | default: |
1531 | err = EINVAL; |
1532 | break; |
1533 | } |
1534 | return err; |
1535 | } |
1536 | |
1537 | int |
1538 | hdaudioopen(dev_t dev, int flag, int mode, struct lwp *l) |
1539 | { |
1540 | device_t self; |
1541 | |
1542 | self = device_lookup(&hdaudio_cd, HDAUDIOUNIT(dev)); |
1543 | if (self == NULL) |
1544 | return ENXIO; |
1545 | |
1546 | return 0; |
1547 | } |
1548 | |
1549 | int |
1550 | hdaudioclose(dev_t dev, int flag, int mode, struct lwp *l) |
1551 | { |
1552 | return 0; |
1553 | } |
1554 | |
1555 | int |
1556 | hdaudioioctl(dev_t dev, u_long cmd, void *addr, int flag, struct lwp *l) |
1557 | { |
1558 | struct hdaudio_softc *sc; |
1559 | struct plistref *pref = addr; |
1560 | prop_dictionary_t request, response; |
1561 | int err; |
1562 | |
1563 | sc = device_lookup_private(&hdaudio_cd, HDAUDIOUNIT(dev)); |
1564 | if (sc == NULL) |
1565 | return ENXIO; |
1566 | |
1567 | response = prop_dictionary_create(); |
1568 | if (response == NULL) |
1569 | return ENOMEM; |
1570 | |
1571 | err = prop_dictionary_copyin_ioctl(pref, cmd, &request); |
1572 | if (err) { |
1573 | prop_object_release(response); |
1574 | return err; |
1575 | } |
1576 | |
1577 | switch (cmd) { |
1578 | case HDAUDIO_FGRP_INFO: |
1579 | err = hdaudioioctl_fgrp_info(sc, request, response); |
1580 | break; |
1581 | case HDAUDIO_FGRP_GETCONFIG: |
1582 | err = hdaudioioctl_fgrp_getconfig(sc, request, response); |
1583 | break; |
1584 | case HDAUDIO_FGRP_SETCONFIG: |
1585 | err = hdaudioioctl_fgrp_setconfig(sc, request, response); |
1586 | break; |
1587 | case HDAUDIO_FGRP_CODEC_INFO: |
1588 | case HDAUDIO_FGRP_WIDGET_INFO: |
1589 | err = hdaudio_dispatch_fgrp_ioctl(sc, cmd, request, response); |
1590 | break; |
1591 | default: |
1592 | err = EINVAL; |
1593 | break; |
1594 | } |
1595 | |
1596 | if (!err) |
1597 | err = prop_dictionary_copyout_ioctl(pref, cmd, response); |
1598 | |
1599 | if (response) |
1600 | prop_object_release(response); |
1601 | prop_object_release(request); |
1602 | return err; |
1603 | } |
1604 | |
1605 | MODULE(MODULE_CLASS_DRIVER, hdaudio, NULL); |
1606 | |
1607 | static int |
1608 | hdaudio_modcmd(modcmd_t cmd, void *opaque) |
1609 | { |
1610 | int error = 0; |
1611 | #ifdef _MODULE |
1612 | int bmaj = -1, cmaj = -1; |
1613 | #endif |
1614 | |
1615 | switch (cmd) { |
1616 | case MODULE_CMD_INIT: |
1617 | #ifdef _MODULE |
1618 | error = devsw_attach("hdaudio" , NULL, &bmaj, |
1619 | &hdaudio_cdevsw, &cmaj); |
1620 | #endif |
1621 | return error; |
1622 | case MODULE_CMD_FINI: |
1623 | #ifdef _MODULE |
1624 | devsw_detach(NULL, &hdaudio_cdevsw); |
1625 | #endif |
1626 | return 0; |
1627 | default: |
1628 | return ENOTTY; |
1629 | } |
1630 | } |
1631 | |
1632 | DEV_VERBOSE_DEFINE(hdaudio); |
1633 | |