File: | dev/usb/uaudio.c |
Warning: | line 2828, column 24 Value stored to 's' during its initialization is never read |
Press '?' to see keyboard shortcuts
Keyboard shortcuts:
1 | /* $OpenBSD: uaudio.c,v 1.174 2023/12/10 06:32:14 ratchov Exp $ */ |
2 | /* |
3 | * Copyright (c) 2018 Alexandre Ratchov <alex@caoua.org> |
4 | * |
5 | * Permission to use, copy, modify, and distribute this software for any |
6 | * purpose with or without fee is hereby granted, provided that the above |
7 | * copyright notice and this permission notice appear in all copies. |
8 | * |
9 | * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES |
10 | * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF |
11 | * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR |
12 | * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES |
13 | * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN |
14 | * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF |
15 | * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. |
16 | */ |
17 | /* |
18 | * The USB Audio Class (UAC) defines what is an audio device and how |
19 | * to use it. There are two versions of the UAC: v1.0 and v2.0. They |
20 | * are not compatible with each other but they are close enough to |
21 | * attempt to have the same driver for both. |
22 | * |
23 | */ |
24 | #include <sys/param.h> |
25 | #include <sys/types.h> |
26 | #include <sys/device.h> |
27 | #include <sys/errno.h> |
28 | #include <sys/fcntl.h> |
29 | #include <sys/malloc.h> |
30 | #include <sys/systm.h> |
31 | #include <sys/time.h> |
32 | #include <sys/audioio.h> |
33 | #include <machine/bus.h> |
34 | #include <dev/audio_if.h> |
35 | #include <dev/usb/usb.h> |
36 | #include <dev/usb/usbdi.h> |
37 | #include <dev/usb/usbdivar.h> |
38 | #include <dev/usb/usb_mem.h> |
39 | |
40 | #ifdef UAUDIO_DEBUG |
41 | #define DPRINTF(...)do {} while(0) \ |
42 | do { \ |
43 | if (uaudio_debug) \ |
44 | printf(__VA_ARGS__); \ |
45 | } while (0) |
46 | #else |
47 | #define DPRINTF(...)do {} while(0) do {} while(0) |
48 | #endif |
49 | |
50 | #define DEVNAME(sc)((sc)->dev.dv_xname) ((sc)->dev.dv_xname) |
51 | |
52 | /* |
53 | * Isochronous endpoint usage (XXX: these belong to dev/usb/usb.h). |
54 | */ |
55 | #define UE_ISO_USAGE0x30 0x30 |
56 | #define UE_ISO_USAGE_DATA0x00 0x00 |
57 | #define UE_ISO_USAGE_FEEDBACK0x10 0x10 |
58 | #define UE_ISO_USAGE_IMPL0x20 0x20 |
59 | #define UE_GET_ISO_USAGE(a)((a) & 0x30) ((a) & UE_ISO_USAGE0x30) |
60 | |
61 | /* |
62 | * Max length of unit names |
63 | */ |
64 | #define UAUDIO_NAMEMAX16 MAX_AUDIO_DEV_LEN16 |
65 | |
66 | /* |
67 | * USB audio class versions |
68 | */ |
69 | #define UAUDIO_V10x100 0x100 |
70 | #define UAUDIO_V20x200 0x200 |
71 | |
72 | /* |
73 | * AC class-specific descriptor interface sub-type |
74 | */ |
75 | #define UAUDIO_AC_HEADER0x1 0x1 |
76 | #define UAUDIO_AC_INPUT0x2 0x2 |
77 | #define UAUDIO_AC_OUTPUT0x3 0x3 |
78 | #define UAUDIO_AC_MIXER0x4 0x4 |
79 | #define UAUDIO_AC_SELECTOR0x5 0x5 |
80 | #define UAUDIO_AC_FEATURE0x6 0x6 |
81 | #define UAUDIO_AC_EFFECT0x7 0x7 |
82 | #define UAUDIO_AC_PROCESSING0x8 0x8 |
83 | #define UAUDIO_AC_EXTENSION0x9 0x9 |
84 | #define UAUDIO_AC_CLKSRC0xa 0xa |
85 | #define UAUDIO_AC_CLKSEL0xb 0xb |
86 | #define UAUDIO_AC_CLKMULT0xc 0xc |
87 | #define UAUDIO_AC_RATECONV0xd 0xd |
88 | |
89 | /* |
90 | * AS class-specific interface sub-types |
91 | */ |
92 | #define UAUDIO_AS_GENERAL0x1 0x1 |
93 | #define UAUDIO_AS_FORMAT0x2 0x2 |
94 | |
95 | /* |
96 | * AS class-specific endpoint sub-type |
97 | */ |
98 | #define UAUDIO_EP_GENERAL0x1 0x1 |
99 | |
100 | /* |
101 | * UAC v1 formats, wFormatTag is an enum |
102 | */ |
103 | #define UAUDIO_V1_FMT_PCM0x1 0x1 |
104 | #define UAUDIO_V1_FMT_PCM80x2 0x2 |
105 | #define UAUDIO_V1_FMT_FLOAT0x3 0x3 |
106 | #define UAUDIO_V1_FMT_ALAW0x4 0x4 |
107 | #define UAUDIO_V1_FMT_MULAW0x5 0x5 |
108 | |
109 | /* |
110 | * UAC v2 formats, bmFormats is a bitmap |
111 | */ |
112 | #define UAUDIO_V2_FMT_PCM0x01 0x01 |
113 | #define UAUDIO_V2_FMT_PCM80x02 0x02 |
114 | #define UAUDIO_V2_FMT_FLOAT0x04 0x04 |
115 | #define UAUDIO_V2_FMT_ALAW0x08 0x08 |
116 | #define UAUDIO_V2_FMT_MULAW0x10 0x10 |
117 | |
118 | /* |
119 | * AC requests |
120 | */ |
121 | #define UAUDIO_V1_REQ_SET_CUR0x01 0x01 |
122 | #define UAUDIO_V1_REQ_SET_MIN0x02 0x02 |
123 | #define UAUDIO_V1_REQ_SET_MAX0x03 0x03 |
124 | #define UAUDIO_V1_REQ_SET_RES0x04 0x04 |
125 | #define UAUDIO_V1_REQ_GET_CUR0x81 0x81 |
126 | #define UAUDIO_V1_REQ_GET_MIN0x82 0x82 |
127 | #define UAUDIO_V1_REQ_GET_MAX0x83 0x83 |
128 | #define UAUDIO_V1_REQ_GET_RES0x84 0x84 |
129 | #define UAUDIO_V2_REQ_CUR1 1 |
130 | #define UAUDIO_V2_REQ_RANGES2 2 |
131 | |
132 | /* |
133 | * AC request "selector control" |
134 | */ |
135 | #define UAUDIO_V2_REQSEL_CLKFREQ1 1 |
136 | #define UAUDIO_V2_REQSEL_CLKSEL1 1 |
137 | |
138 | /* |
139 | * AS class-specific endpoint attributes |
140 | */ |
141 | #define UAUDIO_EP_FREQCTL0x01 0x01 |
142 | |
143 | /* |
144 | * AC feature control selectors (aka wValue in the request) |
145 | */ |
146 | #define UAUDIO_REQSEL_MUTE0x01 0x01 |
147 | #define UAUDIO_REQSEL_VOLUME0x02 0x02 |
148 | #define UAUDIO_REQSEL_BASS0x03 0x03 |
149 | #define UAUDIO_REQSEL_MID0x04 0x04 |
150 | #define UAUDIO_REQSEL_TREBLE0x05 0x05 |
151 | #define UAUDIO_REQSEL_EQ0x06 0x06 |
152 | #define UAUDIO_REQSEL_AGC0x07 0x07 |
153 | #define UAUDIO_REQSEL_DELAY0x08 0x08 |
154 | #define UAUDIO_REQSEL_BASSBOOST0x09 0x09 |
155 | #define UAUDIO_REQSEL_LOUDNESS0x0a 0x0a |
156 | #define UAUDIO_REQSEL_GAIN0x0b 0x0b |
157 | #define UAUDIO_REQSEL_GAINPAD0x0c 0x0c |
158 | #define UAUDIO_REQSEL_PHASEINV0x0d 0x0d |
159 | |
160 | /* |
161 | * Endpoint (UAC v1) or clock-source unit (UAC v2) sample rate control |
162 | */ |
163 | #define UAUDIO_REQSEL_RATE0x01 0x01 |
164 | |
165 | /* |
166 | * Samples-per-frame are fractions. UAC v2.0 requires the denominator to |
167 | * be multiple of 2^16, as used in the sync pipe. On the other hand, to |
168 | * represent sample-per-frame of all rates we support, we need the |
169 | * denominator to be such that (rate / 1000) can be represented exactly, |
170 | * 80 works. So we use the least common multiplier of both. |
171 | */ |
172 | #define UAUDIO_SPF_DIV327680 327680 |
173 | |
174 | /* |
175 | * names of DAC and ADC unit names |
176 | */ |
177 | #define UAUDIO_NAME_PLAY"dac" "dac" |
178 | #define UAUDIO_NAME_REC"record" "record" |
179 | |
180 | /* |
181 | * read/write pointers for secure sequential access of binary data, |
182 | * ex. usb descriptors, tables and alike. Bytes are read using the |
183 | * read pointer up to the write pointer. |
184 | */ |
185 | struct uaudio_blob { |
186 | unsigned char *rptr, *wptr; |
187 | }; |
188 | |
189 | /* |
190 | * Ranges of integer values used to represent controls values and |
191 | * sample frequencies. |
192 | */ |
193 | struct uaudio_ranges { |
194 | unsigned int nval; |
195 | struct uaudio_ranges_el { |
196 | struct uaudio_ranges_el *next; |
197 | int min, max, res; |
198 | } *el; |
199 | }; |
200 | |
201 | struct uaudio_softc { |
202 | struct device dev; |
203 | struct usbd_device *udev; |
204 | int version; |
205 | |
206 | /* |
207 | * UAC exposes the device as a circuit of units. Input and |
208 | * output jacks are known as terminal units, others are |
209 | * processing units. The purpose of this driver is to give |
210 | * them reasonable names and expose them as mixer(1) |
211 | * controls. Control names are derived from the type of the |
212 | * unit and its role in the circuit. |
213 | * |
214 | * UAC v2.0 exposes also the clock circuitry using units, so |
215 | * selecting the sample rate also involves units usage. |
216 | */ |
217 | struct uaudio_unit { |
218 | struct uaudio_unit *unit_next, *src_next, *dst_next; |
219 | struct uaudio_unit *src_list, *dst_list; |
220 | char name[UAUDIO_NAMEMAX16]; |
221 | unsigned int nch; |
222 | int type, id; |
223 | |
224 | /* terminal or clock type */ |
225 | unsigned int term; |
226 | |
227 | /* clock source, if a terminal or selector */ |
228 | struct uaudio_unit *clock; |
229 | |
230 | /* sample rates, if this is a clock source */ |
231 | struct uaudio_ranges rates; |
232 | |
233 | /* mixer(4) bits */ |
234 | #define UAUDIO_CLASS_OUT0 0 |
235 | #define UAUDIO_CLASS_IN1 1 |
236 | #define UAUDIO_CLASS_COUNT2 2 |
237 | int mixer_class; |
238 | struct uaudio_mixent { |
239 | struct uaudio_mixent *next; |
240 | char *fname; |
241 | #define UAUDIO_MIX_SW0 0 |
242 | #define UAUDIO_MIX_NUM1 1 |
243 | #define UAUDIO_MIX_ENUM2 2 |
244 | int type; |
245 | int chan; |
246 | int req_sel; |
247 | struct uaudio_ranges ranges; |
248 | } *mixent_list; |
249 | } *unit_list; |
250 | |
251 | /* |
252 | * Current clock, UAC v2.0 only |
253 | */ |
254 | struct uaudio_unit *clock; |
255 | |
256 | /* |
257 | * Number of input and output terminals |
258 | */ |
259 | unsigned int nin, nout; |
260 | |
261 | /* |
262 | * When unique names are needed, they are generated using a |
263 | * base string suffixed with a number. Ex. "spkr5". The |
264 | * following structure is used to keep track of strings we |
265 | * allocated. |
266 | */ |
267 | struct uaudio_name { |
268 | struct uaudio_name *next; |
269 | char *templ; |
270 | unsigned int unit; |
271 | } *names; |
272 | |
273 | /* |
274 | * Audio streaming (AS) alternate settings, i.e. stream format |
275 | * and USB-related parameters to use it. |
276 | */ |
277 | struct uaudio_alt { |
278 | struct uaudio_alt *next; |
279 | int ifnum, altnum; |
280 | int mode; /* one of AUMODE_{RECORD,PLAY} */ |
281 | int data_addr; /* data endpoint address */ |
282 | int sync_addr; /* feedback endpoint address */ |
283 | int maxpkt; /* max supported bytes per frame */ |
284 | int fps; /* USB (micro-)frames per second */ |
285 | int bps, bits, nch; /* audio encoding */ |
286 | int v1_rates; /* if UAC 1.0, bitmap of rates */ |
287 | } *alts; |
288 | |
289 | /* |
290 | * Audio parameters: play and record stream formats usable |
291 | * together. |
292 | */ |
293 | struct uaudio_params { |
294 | struct uaudio_params *next; |
295 | struct uaudio_alt *palt, *ralt; |
296 | int v1_rates; |
297 | } *params_list, *params; |
298 | |
299 | /* |
300 | * One direction audio stream, aka "DMA" in progress |
301 | */ |
302 | struct uaudio_stream { |
303 | #define UAUDIO_NXFERS_MIN2 2 |
304 | #define UAUDIO_NXFERS_MAX8 8 |
305 | struct uaudio_xfer { |
306 | struct usbd_xfer *usb_xfer; |
307 | unsigned char *buf; |
308 | uint16_t *sizes; |
309 | unsigned int size; /* bytes requested */ |
310 | unsigned int nframes; /* frames requested */ |
311 | } data_xfers[UAUDIO_NXFERS_MAX8], sync_xfers[UAUDIO_NXFERS_MAX8]; |
312 | |
313 | /* |
314 | * We don't use all the data_xfers[] entries because |
315 | * we can't schedule too many frames in the usb |
316 | * controller. |
317 | */ |
318 | unsigned int nxfers; |
319 | |
320 | unsigned int spf_remain; /* frac sample left */ |
321 | unsigned int spf; /* avg samples per frame */ |
322 | unsigned int spf_min, spf_max; /* allowed boundaries */ |
323 | |
324 | /* |
325 | * The max frame size we'll need (which may be lower |
326 | * than the maxpkt the usb pipe supports). |
327 | */ |
328 | unsigned int maxpkt; |
329 | |
330 | /* |
331 | * max number of frames per xfer we'll need |
332 | */ |
333 | unsigned int nframes_max; |
334 | |
335 | /* |
336 | * At usb2.0 speed, the number of (micro-)frames per |
337 | * transfer must correspond to 1ms, which is the usb1.1 |
338 | * frame duration. This is required by lower level usb |
339 | * drivers. |
340 | * |
341 | * The nframes_mask variable is used to test if the |
342 | * number of frames per transfer is usable (by checking |
343 | * that least significant bits are zero). For instance, |
344 | * nframes_mask will be set to 0x0 on usb1.1 device and |
345 | * 0x7 on usb2.0 devices running at 8000 fps. |
346 | */ |
347 | unsigned int nframes_mask; |
348 | |
349 | unsigned int data_nextxfer, sync_nextxfer; |
350 | struct usbd_pipe *data_pipe; |
351 | struct usbd_pipe *sync_pipe; |
352 | void (*intr)(void *); |
353 | void *arg; |
354 | |
355 | /* audio ring extents, passed to trigger() methods */ |
356 | unsigned char *ring_start, *ring_end; |
357 | |
358 | /* pointer to first byte available */ |
359 | unsigned char *ring_pos; |
360 | |
361 | /* audio(9) block size in bytes */ |
362 | int ring_blksz; |
363 | |
364 | /* xfer position relative to block boundary */ |
365 | int ring_offs; |
366 | |
367 | /* |
368 | * As USB sample-per-frame is not constant, we must |
369 | * schedule transfers slightly larger that one audio |
370 | * block. This is the "safe" block size, that ensures |
371 | * the transfer will cross the audio block boundary. |
372 | */ |
373 | int safe_blksz; |
374 | |
375 | /* |
376 | * Number of bytes completed, when it reaches a |
377 | * block size, we fire an audio(9) interrupt. |
378 | */ |
379 | int ring_icnt; |
380 | |
381 | /* |
382 | * USB transfers are used as a FIFO which is the |
383 | * concatenation of all transfers. This is the write |
384 | * (read) position of the play (rec) stream |
385 | */ |
386 | unsigned int ubuf_xfer; /* xfer index */ |
387 | unsigned int ubuf_pos; /* offset in bytes */ |
388 | } pstream, rstream; |
389 | |
390 | int ctl_ifnum; /* aka AC interface */ |
391 | |
392 | int mode; /* open() mode */ |
393 | int trigger_mode; /* trigger() mode */ |
394 | |
395 | unsigned int rate; /* current sample rate */ |
396 | unsigned int ufps; /* USB frames per second */ |
397 | unsigned int sync_pktsz; /* size of sync packet */ |
398 | unsigned int host_nframes; /* max frames we can schedule */ |
399 | |
400 | int diff_nsamp; /* samples play is ahead of rec */ |
401 | int diff_nframes; /* frames play is ahead of rec */ |
402 | unsigned int adjspf_age; /* frames since last uaudio_adjspf */ |
403 | |
404 | /* |
405 | * bytes pending to be copied to transfer buffer. This is play |
406 | * only, as recorded frames are copied as soon they are |
407 | * received. |
408 | */ |
409 | size_t copy_todo; |
410 | }; |
411 | |
412 | int uaudio_match(struct device *, void *, void *); |
413 | void uaudio_attach(struct device *, struct device *, void *); |
414 | int uaudio_detach(struct device *, int); |
415 | |
416 | int uaudio_open(void *, int); |
417 | void uaudio_close(void *); |
418 | int uaudio_set_params(void *, int, int, struct audio_params *, |
419 | struct audio_params *); |
420 | unsigned int uaudio_set_blksz(void *, int, |
421 | struct audio_params *, struct audio_params *, unsigned int); |
422 | int uaudio_trigger_output(void *, void *, void *, int, |
423 | void (*)(void *), void *, struct audio_params *); |
424 | int uaudio_trigger_input(void *, void *, void *, int, |
425 | void (*)(void *), void *, struct audio_params *); |
426 | void uaudio_copy_output(void *, size_t); |
427 | void uaudio_underrun(void *); |
428 | int uaudio_halt_output(void *); |
429 | int uaudio_halt_input(void *); |
430 | int uaudio_query_devinfo(void *, struct mixer_devinfo *); |
431 | int uaudio_get_port(void *, struct mixer_ctrl *); |
432 | int uaudio_set_port(void *, struct mixer_ctrl *); |
433 | |
434 | int uaudio_process_unit(struct uaudio_softc *, |
435 | struct uaudio_unit *, int, |
436 | struct uaudio_blob, |
437 | struct uaudio_unit **); |
438 | |
439 | void uaudio_pdata_intr(struct usbd_xfer *, void *, usbd_status); |
440 | void uaudio_rdata_intr(struct usbd_xfer *, void *, usbd_status); |
441 | void uaudio_psync_intr(struct usbd_xfer *, void *, usbd_status); |
442 | |
443 | #ifdef UAUDIO_DEBUG |
444 | char *uaudio_isoname(int isotype); |
445 | char *uaudio_modename(int mode); |
446 | char *uaudio_usagename(int usage); |
447 | void uaudio_rates_print(int rates); |
448 | void uaudio_ranges_print(struct uaudio_ranges *r); |
449 | void uaudio_print_unit(struct uaudio_softc *sc, struct uaudio_unit *u); |
450 | void uaudio_mixer_print(struct uaudio_softc *sc); |
451 | void uaudio_conf_print(struct uaudio_softc *sc); |
452 | |
453 | /* |
454 | * 0 - nothing, same as if UAUDIO_DEBUG isn't defined |
455 | * 1 - initialisations & setup |
456 | * 2 - audio(4) calls |
457 | * 3 - transfers |
458 | */ |
459 | int uaudio_debug = 1; |
460 | #endif |
461 | |
462 | struct cfdriver uaudio_cd = { |
463 | NULL((void *)0), "uaudio", DV_DULL |
464 | }; |
465 | |
466 | const struct cfattach uaudio_ca = { |
467 | sizeof(struct uaudio_softc), uaudio_match, uaudio_attach, uaudio_detach |
468 | }; |
469 | |
470 | const struct audio_hw_if uaudio_hw_if = { |
471 | .open = uaudio_open, |
472 | .close = uaudio_close, |
473 | .set_params = uaudio_set_params, |
474 | .halt_output = uaudio_halt_output, |
475 | .halt_input = uaudio_halt_input, |
476 | .set_port = uaudio_set_port, |
477 | .get_port = uaudio_get_port, |
478 | .query_devinfo = uaudio_query_devinfo, |
479 | .trigger_output = uaudio_trigger_output, |
480 | .trigger_input = uaudio_trigger_input, |
481 | .copy_output = uaudio_copy_output, |
482 | .underrun = uaudio_underrun, |
483 | .set_blksz = uaudio_set_blksz, |
484 | }; |
485 | |
486 | /* |
487 | * To keep things simple, we support only the following rates, we |
488 | * don't care about continuous sample rates or other "advanced" |
489 | * features which complicate implementation. |
490 | */ |
491 | const int uaudio_rates[] = { |
492 | 8000, 11025, 12000, 16000, 22050, 24000, 32000, 44100, 48000, |
493 | 64000, 88200, 96000, 128000, 176400, 192000 |
494 | }; |
495 | |
496 | /* |
497 | * Convert 8, 16, or 24-bit signed value to an int by expanding the |
498 | * sign bit. |
499 | */ |
500 | int |
501 | uaudio_sign_expand(unsigned int val, int opsize) |
502 | { |
503 | unsigned int s; |
504 | |
505 | s = 1 << (8 * opsize - 1); |
506 | return (val ^ s) - s; |
507 | } |
508 | |
509 | int |
510 | uaudio_req(struct uaudio_softc *sc, |
511 | unsigned int type, |
512 | unsigned int req, |
513 | unsigned int sel, |
514 | unsigned int chan, |
515 | unsigned int ifnum, |
516 | unsigned int id, |
517 | unsigned char *buf, |
518 | size_t size) |
519 | { |
520 | struct usb_device_request r; |
521 | int err; |
522 | |
523 | r.bmRequestType = type; |
524 | r.bRequest = req; |
525 | USETW(r.wValue, sel << 8 | chan)(*(u_int16_t *)(r.wValue) = (sel << 8 | chan)); |
526 | USETW(r.wIndex, id << 8 | ifnum)(*(u_int16_t *)(r.wIndex) = (id << 8 | ifnum)); |
527 | USETW(r.wLength, size)(*(u_int16_t *)(r.wLength) = (size)); |
528 | |
529 | DPRINTF("%s: type = 0x%x, req = 0x%x, val = 0x%x, "do {} while(0) |
530 | "index = 0x%x, size = %d\n", __func__,do {} while(0) |
531 | type, req, UGETW(r.wValue), UGETW(r.wIndex), UGETW(r.wLength))do {} while(0); |
532 | |
533 | err = usbd_do_request(sc->udev, &r, buf); |
534 | if (err) { |
535 | DPRINTF("%s: failed: %s\n", __func__, usbd_errstr(err))do {} while(0); |
536 | return 0; |
537 | } |
538 | return 1; |
539 | } |
540 | |
541 | /* |
542 | * Read a number of the given size (in bytes) from the given |
543 | * blob. Return 0 on error. |
544 | */ |
545 | int |
546 | uaudio_getnum(struct uaudio_blob *p, unsigned int size, unsigned int *ret) |
547 | { |
548 | unsigned int i, num = 0; |
549 | |
550 | if (p->wptr - p->rptr < size) { |
551 | DPRINTF("%s: %d: too small\n", __func__, size)do {} while(0); |
552 | return 0; |
553 | } |
554 | |
555 | for (i = 0; i < size; i++) |
556 | num |= *p->rptr++ << (8 * i); |
557 | |
558 | if (ret) |
559 | *ret = num; |
560 | return 1; |
561 | } |
562 | |
563 | /* |
564 | * Read a USB descriptor from the given blob. Return 0 on error. |
565 | */ |
566 | int |
567 | uaudio_getdesc(struct uaudio_blob *p, struct uaudio_blob *ret) |
568 | { |
569 | unsigned int size; |
570 | |
571 | if (!uaudio_getnum(p, 1, &size)) |
572 | return 0; |
573 | if (size-- == 0) { |
574 | DPRINTF("%s: zero sized desc\n", __func__)do {} while(0); |
575 | return 0; |
576 | } |
577 | if (p->wptr - p->rptr < size) { |
578 | DPRINTF("%s: too small\n", __func__)do {} while(0); |
579 | return 0; |
580 | } |
581 | ret->rptr = p->rptr; |
582 | ret->wptr = p->rptr + size; |
583 | p->rptr += size; |
584 | return 1; |
585 | } |
586 | |
587 | /* |
588 | * Find the unit with the given id, return NULL if not found. |
589 | */ |
590 | struct uaudio_unit * |
591 | uaudio_unit_byid(struct uaudio_softc *sc, unsigned int id) |
592 | { |
593 | struct uaudio_unit *u; |
594 | |
595 | for (u = sc->unit_list; u != NULL((void *)0); u = u->unit_next) { |
596 | if (u->id == id) |
597 | break; |
598 | } |
599 | return u; |
600 | } |
601 | |
602 | /* |
603 | * Return a terminal name for the given terminal type. |
604 | */ |
605 | char * |
606 | uaudio_tname(struct uaudio_softc *sc, unsigned int type, int isout) |
607 | { |
608 | unsigned int hi, lo; |
609 | char *name; |
610 | |
611 | hi = type >> 8; |
612 | lo = type & 0xff; |
613 | |
614 | /* usb data stream */ |
615 | if (hi == 1) |
616 | return isout ? UAUDIO_NAME_REC"record" : UAUDIO_NAME_PLAY"dac"; |
617 | |
618 | /* if there is only one input (output) use "input" ("output") */ |
619 | if (isout) { |
620 | if (sc->nout == 1) |
621 | return "output"; |
622 | } else { |
623 | if (sc->nin == 1) |
624 | return "input"; |
625 | } |
626 | |
627 | /* determine name from USB terminal type */ |
628 | switch (hi) { |
629 | case 2: |
630 | /* embedded inputs */ |
631 | name = isout ? "mic-out" : "mic"; |
632 | break; |
633 | case 3: |
634 | /* embedded outputs, mostly speakers, except 0x302 */ |
635 | switch (lo) { |
636 | case 0x02: |
637 | name = isout ? "hp" : "hp-in"; |
638 | break; |
639 | default: |
640 | name = isout ? "spkr" : "spkr-in"; |
641 | break; |
642 | } |
643 | break; |
644 | case 4: |
645 | /* handsets and headset */ |
646 | name = isout ? "spkr" : "mic"; |
647 | break; |
648 | case 5: |
649 | /* phone line */ |
650 | name = isout ? "phone-in" : "phone-out"; |
651 | break; |
652 | case 6: |
653 | /* external sources/sinks */ |
654 | switch (lo) { |
655 | case 0x02: |
656 | case 0x05: |
657 | case 0x06: |
658 | case 0x07: |
659 | case 0x09: |
660 | case 0x0a: |
661 | name = isout ? "dig-out" : "dig-in"; |
662 | break; |
663 | default: |
664 | name = isout ? "line-out" : "line-in"; |
665 | break; |
666 | } |
667 | break; |
668 | case 7: |
669 | /* internal devices */ |
670 | name = isout ? "int-out" : "int-in"; |
671 | break; |
672 | default: |
673 | name = isout ? "unk-out" : "unk-in"; |
674 | } |
675 | return name; |
676 | } |
677 | |
678 | /* |
679 | * Return a clock name for the given clock type. |
680 | */ |
681 | char * |
682 | uaudio_clkname(unsigned int attr) |
683 | { |
684 | static char *names[] = {"ext", "fixed", "var", "prog"}; |
685 | |
686 | return names[attr & 3]; |
687 | } |
688 | |
689 | /* |
690 | * Return an unique name for the given template. |
691 | */ |
692 | void |
693 | uaudio_mkname(struct uaudio_softc *sc, char *templ, char *res) |
694 | { |
695 | struct uaudio_name *n; |
696 | char *sep; |
697 | |
698 | /* |
699 | * if this is not a terminal name (i.e. there's a underscore |
700 | * in the name, like in "spkr2_mic3"), then use underscore as |
701 | * separator to avoid concatenating two numbers |
702 | */ |
703 | sep = strchr(templ, '_') != NULL((void *)0) ? "_" : ""; |
704 | |
705 | n = sc->names; |
706 | while (1) { |
707 | if (n == NULL((void *)0)) { |
708 | n = malloc(sizeof(struct uaudio_name), |
709 | M_USBDEV102, M_WAITOK0x0001); |
710 | n->templ = templ; |
711 | n->unit = 0; |
712 | n->next = sc->names; |
713 | sc->names = n; |
714 | } |
715 | if (strcmp(n->templ, templ) == 0) |
716 | break; |
717 | n = n->next; |
718 | } |
719 | if (n->unit == 0) |
720 | snprintf(res, UAUDIO_NAMEMAX16, "%s", templ); |
721 | else |
722 | snprintf(res, UAUDIO_NAMEMAX16, "%s%s%u", templ, sep, n->unit); |
723 | n->unit++; |
724 | } |
725 | |
726 | /* |
727 | * Convert UAC v1.0 feature bitmap to UAC v2.0 feature bitmap. |
728 | */ |
729 | unsigned int |
730 | uaudio_feature_fixup(struct uaudio_softc *sc, unsigned int ctl) |
731 | { |
732 | int i; |
733 | unsigned int bits, n; |
734 | |
735 | switch (sc->version) { |
736 | case UAUDIO_V10x100: |
737 | n = 0; |
738 | for (i = 0; i < 16; i++) { |
739 | bits = (ctl >> i) & 1; |
740 | if (bits) |
741 | bits |= 2; |
742 | n |= bits << (2 * i); |
743 | } |
744 | return n; |
745 | case UAUDIO_V20x200: |
746 | break; |
747 | } |
748 | return ctl; |
749 | } |
750 | |
751 | /* |
752 | * Initialize a uaudio_ranges to the empty set |
753 | */ |
754 | void |
755 | uaudio_ranges_init(struct uaudio_ranges *r) |
756 | { |
757 | r->el = NULL((void *)0); |
758 | r->nval = 0; |
759 | } |
760 | |
761 | /* |
762 | * Add the given range to the uaudio_ranges structures. Ranges are |
763 | * not supposed to overlap (required by USB spec). If they do we just |
764 | * return. |
765 | */ |
766 | void |
767 | uaudio_ranges_add(struct uaudio_ranges *r, int min, int max, int res) |
768 | { |
769 | struct uaudio_ranges_el *e, **pe; |
770 | |
771 | if (min > max) { |
772 | DPRINTF("%s: [%d:%d]/%d: bad range\n", __func__,do {} while(0) |
773 | min, max, res)do {} while(0); |
774 | return; |
775 | } |
776 | |
777 | for (pe = &r->el; (e = *pe) != NULL((void *)0); pe = &e->next) { |
778 | if (min <= e->max && max >= e->min) { |
779 | DPRINTF("%s: overlapping ranges\n", __func__)do {} while(0); |
780 | return; |
781 | } |
782 | if (min < e->max) |
783 | break; |
784 | } |
785 | |
786 | /* XXX: use 'res' here */ |
787 | r->nval += max - min + 1; |
788 | |
789 | e = malloc(sizeof(struct uaudio_ranges_el), M_USBDEV102, M_WAITOK0x0001); |
790 | e->min = min; |
791 | e->max = max; |
792 | e->res = res; |
793 | e->next = *pe; |
794 | *pe = e; |
795 | } |
796 | |
797 | /* |
798 | * Free all ranges making the uaudio_ranges the empty set |
799 | */ |
800 | void |
801 | uaudio_ranges_clear(struct uaudio_ranges *r) |
802 | { |
803 | struct uaudio_ranges_el *e; |
804 | |
805 | while ((e = r->el) != NULL((void *)0)) { |
806 | r->el = e->next; |
807 | free(e, M_USBDEV102, sizeof(struct uaudio_ranges_el)); |
808 | } |
809 | r->nval = 0; |
810 | } |
811 | |
812 | /* |
813 | * Convert a value in the given uaudio_ranges, into a 0..255 integer |
814 | * suitable for mixer usage |
815 | */ |
816 | int |
817 | uaudio_ranges_decode(struct uaudio_ranges *r, int val) |
818 | { |
819 | struct uaudio_ranges_el *e; |
820 | int diff, pos; |
821 | |
822 | pos = 0; |
823 | |
824 | for (e = r->el; e != NULL((void *)0); e = e->next) { |
825 | if (val >= e->min && val <= e->max) { |
826 | pos += val - e->min; |
827 | return (r->nval == 1) ? 0 : |
828 | (pos * 255 + (r->nval - 1) / 2) / (r->nval - 1); |
829 | } |
830 | diff = e->max - e->min + 1; |
831 | pos += diff; |
832 | } |
833 | return 0; |
834 | } |
835 | |
836 | /* |
837 | * Convert a 0..255 to a value in the uaudio_ranges suitable for a USB |
838 | * request. |
839 | */ |
840 | unsigned int |
841 | uaudio_ranges_encode(struct uaudio_ranges *r, int val) |
842 | { |
843 | struct uaudio_ranges_el *e; |
844 | int diff, pos; |
845 | |
846 | pos = (val * (r->nval - 1) + 127) / 255; |
847 | |
848 | for (e = r->el; e != NULL((void *)0); e = e->next) { |
849 | diff = e->max - e->min + 1; |
850 | if (pos < diff) |
851 | return e->min + pos; |
852 | pos -= diff; |
853 | } |
854 | return 0; |
855 | } |
856 | |
857 | /* |
858 | * Return the bitmap of supported rates included in the given ranges. |
859 | * This is not a mixer thing, UAC v2.0 uses ranges to report sample |
860 | * rates. |
861 | */ |
862 | int |
863 | uaudio_ranges_getrates(struct uaudio_ranges *r, |
864 | unsigned int mult, unsigned int div) |
865 | { |
866 | struct uaudio_ranges_el *e; |
867 | int rates, i, v; |
868 | |
869 | rates = 0; |
870 | |
871 | for (e = r->el; e != NULL((void *)0); e = e->next) { |
872 | for (i = 0; i < nitems(uaudio_rates)(sizeof((uaudio_rates)) / sizeof((uaudio_rates)[0])); i++) { |
873 | v = (unsigned long long)uaudio_rates[i] * mult / div; |
874 | if (v < e->min || v > e->max) |
875 | continue; |
876 | if (e->res == 0 || v - e->min % e->res == 0) |
877 | rates |= 1 << i; |
878 | } |
879 | } |
880 | |
881 | return rates; |
882 | } |
883 | |
884 | /* |
885 | * Return the index in the uaudio_rates[] array of rate closest to the |
886 | * given rate in Hz. |
887 | */ |
888 | int |
889 | uaudio_rates_indexof(int mask, int rate) |
890 | { |
891 | int i, diff, best_index, best_diff; |
892 | |
893 | best_index = -1; |
894 | best_diff = INT_MAX0x7fffffff; |
895 | for (i = 0; i < nitems(uaudio_rates)(sizeof((uaudio_rates)) / sizeof((uaudio_rates)[0])); i++) { |
896 | if ((mask & (1 << i)) == 0) |
897 | continue; |
898 | diff = uaudio_rates[i] - rate; |
899 | if (diff < 0) |
900 | diff = -diff; |
901 | if (diff < best_diff) { |
902 | best_index = i; |
903 | best_diff = diff; |
904 | } |
905 | } |
906 | return best_index; |
907 | } |
908 | |
909 | /* |
910 | * Do a request that results in a uaudio_ranges. On UAC v1.0, this is |
911 | * simply a min/max/res triplet. On UAC v2.0, this is an array of |
912 | * min/max/res triplets. |
913 | */ |
914 | int |
915 | uaudio_req_ranges(struct uaudio_softc *sc, |
916 | unsigned int opsize, |
917 | unsigned int sel, |
918 | unsigned int chan, |
919 | unsigned int ifnum, |
920 | unsigned int id, |
921 | struct uaudio_ranges *r) |
922 | { |
923 | unsigned char req_buf[16], *req = NULL((void *)0); |
924 | size_t req_size; |
925 | struct uaudio_blob p; |
926 | unsigned int count, min, max, res; |
927 | int i; |
928 | |
929 | switch (sc->version) { |
930 | case UAUDIO_V10x100: |
931 | count = 1; |
932 | req = req_buf; |
933 | p.rptr = p.wptr = req; |
934 | if (!uaudio_req(sc, UT_READ_CLASS_INTERFACE(0x80 | 0x20 | 0x01), |
935 | UAUDIO_V1_REQ_GET_MIN0x82, sel, chan, |
936 | ifnum, id, p.wptr, opsize)) |
937 | return 0; |
938 | p.wptr += opsize; |
939 | if (!uaudio_req(sc, UT_READ_CLASS_INTERFACE(0x80 | 0x20 | 0x01), |
940 | UAUDIO_V1_REQ_GET_MAX0x83, sel, chan, |
941 | ifnum, id, p.wptr, opsize)) |
942 | return 0; |
943 | p.wptr += opsize; |
944 | if (!uaudio_req(sc, UT_READ_CLASS_INTERFACE(0x80 | 0x20 | 0x01), |
945 | UAUDIO_V1_REQ_GET_RES0x84, sel, chan, |
946 | ifnum, id, p.wptr, opsize)) |
947 | return 0; |
948 | p.wptr += opsize; |
949 | break; |
950 | case UAUDIO_V20x200: |
951 | /* fetch the ranges count only (first 2 bytes) */ |
952 | if (!uaudio_req(sc, UT_READ_CLASS_INTERFACE(0x80 | 0x20 | 0x01), |
953 | UAUDIO_V2_REQ_RANGES2, sel, chan, |
954 | ifnum, id, req_buf, 2)) |
955 | return 0; |
956 | |
957 | /* count is at most 65535 */ |
958 | count = req_buf[0] | req_buf[1] << 8; |
959 | |
960 | /* restart the request on a large enough buffer */ |
961 | req_size = 2 + 3 * opsize * count; |
962 | if (sizeof(req_buf) >= req_size) |
963 | req = req_buf; |
964 | else |
965 | req = malloc(req_size, M_USBDEV102, M_WAITOK0x0001); |
966 | |
967 | p.rptr = p.wptr = req; |
968 | if (!uaudio_req(sc, UT_READ_CLASS_INTERFACE(0x80 | 0x20 | 0x01), |
969 | UAUDIO_V2_REQ_RANGES2, sel, chan, |
970 | ifnum, id, p.wptr, req_size)) |
971 | return 0; |
972 | p.wptr += req_size; |
973 | |
974 | /* skip initial 2 bytes of count */ |
975 | p.rptr += 2; |
976 | break; |
977 | } |
978 | |
979 | for (i = 0; i < count; i++) { |
980 | if (!uaudio_getnum(&p, opsize, &min)) |
981 | return 0; |
982 | if (!uaudio_getnum(&p, opsize, &max)) |
983 | return 0; |
984 | if (!uaudio_getnum(&p, opsize, &res)) |
985 | return 0; |
986 | uaudio_ranges_add(r, |
987 | uaudio_sign_expand(min, opsize), |
988 | uaudio_sign_expand(max, opsize), |
989 | uaudio_sign_expand(res, opsize)); |
990 | } |
991 | |
992 | if (req != req_buf) |
993 | free(req, M_USBDEV102, req_size); |
994 | |
995 | return 1; |
996 | } |
997 | |
998 | /* |
999 | * Return the rates bitmap of the given interface alt setting |
1000 | */ |
1001 | int |
1002 | uaudio_alt_getrates(struct uaudio_softc *sc, struct uaudio_alt *p) |
1003 | { |
1004 | struct uaudio_unit *u; |
1005 | unsigned int mult = 1, div = 1; |
1006 | |
1007 | switch (sc->version) { |
1008 | case UAUDIO_V10x100: |
1009 | return p->v1_rates; |
1010 | case UAUDIO_V20x200: |
1011 | u = sc->clock; |
1012 | while (1) { |
1013 | switch (u->type) { |
1014 | case UAUDIO_AC_CLKSRC0xa: |
1015 | return uaudio_ranges_getrates(&u->rates, |
1016 | mult, div); |
1017 | case UAUDIO_AC_CLKSEL0xb: |
1018 | u = u->clock; |
1019 | break; |
1020 | case UAUDIO_AC_CLKMULT0xc: |
1021 | case UAUDIO_AC_RATECONV0xd: |
1022 | /* XXX: adjust rate with multiplier */ |
1023 | u = u->src_list; |
1024 | break; |
1025 | default: |
1026 | DPRINTF("%s: no clock\n", __func__)do {} while(0); |
1027 | return 0; |
1028 | } |
1029 | } |
1030 | } |
1031 | return 0; |
1032 | } |
1033 | |
1034 | /* |
1035 | * return the clock unit of the given terminal unit (v2 only) |
1036 | */ |
1037 | int |
1038 | uaudio_clock_id(struct uaudio_softc *sc) |
1039 | { |
1040 | struct uaudio_unit *u; |
1041 | |
1042 | u = sc->clock; |
1043 | while (1) { |
1044 | if (u == NULL((void *)0)) { |
1045 | DPRINTF("%s: NULL clock pointer\n", __func__)do {} while(0); |
1046 | return -1; |
1047 | } |
1048 | switch (u->type) { |
1049 | case UAUDIO_AC_CLKSRC0xa: |
1050 | return u->id; |
1051 | case UAUDIO_AC_CLKSEL0xb: |
1052 | u = u->clock; |
1053 | break; |
1054 | case UAUDIO_AC_CLKMULT0xc: |
1055 | case UAUDIO_AC_RATECONV0xd: |
1056 | u = u->src_list; |
1057 | break; |
1058 | default: |
1059 | DPRINTF("%s: no clock\n", __func__)do {} while(0); |
1060 | return -1; |
1061 | } |
1062 | } |
1063 | } |
1064 | |
1065 | /* |
1066 | * Return the rates bitmap of the given parameters setting |
1067 | */ |
1068 | int |
1069 | uaudio_getrates(struct uaudio_softc *sc, struct uaudio_params *p) |
1070 | { |
1071 | switch (sc->version) { |
1072 | case UAUDIO_V10x100: |
1073 | return p->v1_rates; |
1074 | case UAUDIO_V20x200: |
1075 | return uaudio_alt_getrates(sc, p->palt ? p->palt : p->ralt); |
1076 | } |
1077 | return 0; |
1078 | } |
1079 | |
1080 | /* |
1081 | * Add the given feature (aka mixer control) to the given unit. |
1082 | */ |
1083 | void |
1084 | uaudio_feature_addent(struct uaudio_softc *sc, |
1085 | struct uaudio_unit *u, int uac_type, int chan) |
1086 | { |
1087 | static struct { |
1088 | char *name; |
1089 | int mix_type; |
1090 | int req_sel; |
1091 | } features[] = { |
1092 | {"mute", UAUDIO_MIX_SW0, UAUDIO_REQSEL_MUTE0x01}, |
1093 | {"level", UAUDIO_MIX_NUM1, UAUDIO_REQSEL_VOLUME0x02}, |
1094 | {"bass", UAUDIO_MIX_NUM1, UAUDIO_REQSEL_BASS0x03}, |
1095 | {"mid", UAUDIO_MIX_NUM1, UAUDIO_REQSEL_MID0x04}, |
1096 | {"treble", UAUDIO_MIX_NUM1, UAUDIO_REQSEL_TREBLE0x05}, |
1097 | {"eq", UAUDIO_MIX_NUM1, UAUDIO_REQSEL_EQ0x06}, |
1098 | {"agc", UAUDIO_MIX_SW0, UAUDIO_REQSEL_AGC0x07}, |
1099 | {NULL((void *)0), -1, -1}, /* delay */ |
1100 | {"bassboost", UAUDIO_MIX_SW0, UAUDIO_REQSEL_BASSBOOST0x09}, |
1101 | {"loud", UAUDIO_MIX_SW0, UAUDIO_REQSEL_LOUDNESS0x0a}, |
1102 | {"gain", UAUDIO_MIX_NUM1, UAUDIO_REQSEL_GAIN0x0b}, |
1103 | {"gainpad", UAUDIO_MIX_SW0, UAUDIO_REQSEL_GAINPAD0x0c}, |
1104 | {"phase", UAUDIO_MIX_SW0, UAUDIO_REQSEL_PHASEINV0x0d}, |
1105 | {NULL((void *)0), -1, -1}, /* underflow */ |
1106 | {NULL((void *)0), -1, -1} /* overflow */ |
1107 | }; |
1108 | struct uaudio_mixent *m, *i, **pi; |
1109 | int cmp; |
1110 | |
1111 | if (uac_type >= sizeof(features) / sizeof(features[0])) { |
1112 | printf("%s: skipped unknown feature\n", DEVNAME(sc)((sc)->dev.dv_xname)); |
1113 | return; |
1114 | } |
1115 | |
1116 | m = malloc(sizeof(struct uaudio_mixent), M_USBDEV102, M_WAITOK0x0001); |
1117 | m->chan = chan; |
1118 | m->fname = features[uac_type].name; |
1119 | m->type = features[uac_type].mix_type; |
1120 | m->req_sel = features[uac_type].req_sel; |
1121 | uaudio_ranges_init(&m->ranges); |
1122 | |
1123 | if (m->type == UAUDIO_MIX_NUM1) { |
1124 | if (!uaudio_req_ranges(sc, 2, |
1125 | m->req_sel, chan < 0 ? 0 : chan + 1, |
1126 | sc->ctl_ifnum, u->id, |
1127 | &m->ranges)) { |
1128 | printf("%s: failed to get ranges for %s control\n", |
1129 | DEVNAME(sc)((sc)->dev.dv_xname), m->fname); |
1130 | free(m, M_USBDEV102, sizeof(struct uaudio_mixent)); |
1131 | return; |
1132 | } |
1133 | if (m->ranges.el == NULL((void *)0)) { |
1134 | printf("%s: skipped %s control with empty range\n", |
1135 | DEVNAME(sc)((sc)->dev.dv_xname), m->fname); |
1136 | free(m, M_USBDEV102, sizeof(struct uaudio_mixent)); |
1137 | return; |
1138 | } |
1139 | #ifdef UAUDIO_DEBUG |
1140 | if (uaudio_debug) |
1141 | uaudio_ranges_print(&m->ranges); |
1142 | #endif |
1143 | } |
1144 | |
1145 | /* |
1146 | * Add to unit's mixer controls list, sorting entries by name |
1147 | * and increasing channel number. |
1148 | */ |
1149 | for (pi = &u->mixent_list; (i = *pi) != NULL((void *)0); pi = &i->next) { |
1150 | cmp = strcmp(i->fname, m->fname); |
1151 | if (cmp == 0) |
1152 | cmp = i->chan - m->chan; |
1153 | if (cmp == 0) { |
1154 | DPRINTF("%02u: %s.%s: duplicate feature for chan %d\n",do {} while(0) |
1155 | u->id, u->name, m->fname, m->chan)do {} while(0); |
1156 | free(m, M_USBDEV102, sizeof(struct uaudio_mixent)); |
1157 | return; |
1158 | } |
1159 | if (cmp > 0) |
1160 | break; |
1161 | } |
1162 | m->next = *pi; |
1163 | *pi = m; |
1164 | |
1165 | DPRINTF("\t%s[%d]\n", m->fname, m->chan)do {} while(0); |
1166 | } |
1167 | |
1168 | /* |
1169 | * For the given unit, parse the list of its sources and recursively |
1170 | * call uaudio_process_unit() for each. |
1171 | */ |
1172 | int |
1173 | uaudio_process_srcs(struct uaudio_softc *sc, |
1174 | struct uaudio_unit *u, struct uaudio_blob units, |
1175 | struct uaudio_blob *p) |
1176 | { |
1177 | struct uaudio_unit *s, **ps; |
1178 | unsigned int i, npin, sid; |
1179 | |
1180 | if (!uaudio_getnum(p, 1, &npin)) |
1181 | return 0; |
1182 | ps = &u->src_list; |
1183 | for (i = 0; i < npin; i++) { |
1184 | if (!uaudio_getnum(p, 1, &sid)) |
1185 | return 0; |
1186 | if (!uaudio_process_unit(sc, u, sid, units, &s)) |
1187 | return 0; |
1188 | s->src_next = NULL((void *)0); |
1189 | *ps = s; |
1190 | ps = &s->src_next; |
1191 | } |
1192 | return 1; |
1193 | } |
1194 | |
1195 | /* |
1196 | * Parse the number of channels. |
1197 | */ |
1198 | int |
1199 | uaudio_process_nch(struct uaudio_softc *sc, |
1200 | struct uaudio_unit *u, struct uaudio_blob *p) |
1201 | { |
1202 | if (!uaudio_getnum(p, 1, &u->nch)) |
1203 | return 0; |
1204 | /* skip junk */ |
1205 | switch (sc->version) { |
1206 | case UAUDIO_V10x100: |
1207 | if (!uaudio_getnum(p, 2, NULL((void *)0))) /* bmChannelConfig */ |
1208 | return 0; |
1209 | break; |
1210 | case UAUDIO_V20x200: |
1211 | if (!uaudio_getnum(p, 4, NULL((void *)0))) /* wChannelConfig */ |
1212 | return 0; |
1213 | break; |
1214 | } |
1215 | if (!uaudio_getnum(p, 1, NULL((void *)0))) /* iChannelNames */ |
1216 | return 0; |
1217 | return 1; |
1218 | } |
1219 | |
1220 | /* |
1221 | * Find the AC class-specific descriptor for this unit id. |
1222 | */ |
1223 | int |
1224 | uaudio_unit_getdesc(struct uaudio_softc *sc, int id, |
1225 | struct uaudio_blob units, |
1226 | struct uaudio_blob *p, |
1227 | unsigned int *rtype) |
1228 | { |
1229 | unsigned int i, type, subtype; |
1230 | |
1231 | /* |
1232 | * Find the usb descriptor for this id. |
1233 | */ |
1234 | while (1) { |
1235 | if (units.rptr == units.wptr) { |
1236 | DPRINTF("%s: %02u: not found\n", __func__, id)do {} while(0); |
1237 | return 0; |
1238 | } |
1239 | if (!uaudio_getdesc(&units, p)) |
1240 | return 0; |
1241 | if (!uaudio_getnum(p, 1, &type)) |
1242 | return 0; |
1243 | if (!uaudio_getnum(p, 1, &subtype)) |
1244 | return 0; |
1245 | if (!uaudio_getnum(p, 1, &i)) |
1246 | return 0; |
1247 | if (i == id) |
1248 | break; |
1249 | } |
1250 | *rtype = subtype; |
1251 | return 1; |
1252 | } |
1253 | |
1254 | /* |
1255 | * Parse a unit, possibly calling uaudio_process_unit() for each of |
1256 | * its sources. |
1257 | */ |
1258 | int |
1259 | uaudio_process_unit(struct uaudio_softc *sc, |
1260 | struct uaudio_unit *dest, int id, |
1261 | struct uaudio_blob units, |
1262 | struct uaudio_unit **rchild) |
1263 | { |
1264 | struct uaudio_blob p; |
1265 | struct uaudio_unit *u, *s; |
1266 | unsigned int i, j, size, ctl, type, subtype, assoc, clk; |
1267 | #ifdef UAUDIO_DEBUG |
1268 | unsigned int bit; |
1269 | #endif |
1270 | |
1271 | if (!uaudio_unit_getdesc(sc, id, units, &p, &subtype)) |
1272 | return 0; |
1273 | |
1274 | /* |
1275 | * find this unit on the list as it may be already processed as |
1276 | * the source of another destination |
1277 | */ |
1278 | u = uaudio_unit_byid(sc, id); |
1279 | if (u == NULL((void *)0)) { |
1280 | u = malloc(sizeof(struct uaudio_unit), M_USBDEV102, M_WAITOK0x0001); |
1281 | u->id = id; |
1282 | u->type = subtype; |
1283 | u->term = 0; |
1284 | u->src_list = NULL((void *)0); |
1285 | u->dst_list = NULL((void *)0); |
1286 | u->clock = NULL((void *)0); |
1287 | u->mixent_list = NULL((void *)0); |
1288 | u->nch = 0; |
1289 | u->name[0] = 0; |
1290 | uaudio_ranges_init(&u->rates); |
1291 | u->unit_next = sc->unit_list; |
1292 | sc->unit_list = u; |
1293 | } else { |
1294 | switch (u->type) { |
1295 | case UAUDIO_AC_CLKSRC0xa: |
1296 | case UAUDIO_AC_CLKSEL0xb: |
1297 | case UAUDIO_AC_CLKMULT0xc: |
1298 | case UAUDIO_AC_RATECONV0xd: |
1299 | /* not using 'dest' list */ |
1300 | *rchild = u; |
1301 | return 1; |
1302 | } |
1303 | } |
1304 | |
1305 | if (dest) { |
1306 | dest->dst_next = u->dst_list; |
1307 | u->dst_list = dest; |
1308 | if (dest->dst_next != NULL((void *)0)) { |
1309 | /* already seen */ |
1310 | *rchild = u; |
1311 | return 1; |
1312 | } |
1313 | } |
1314 | |
1315 | switch (u->type) { |
1316 | case UAUDIO_AC_INPUT0x2: |
1317 | if (!uaudio_getnum(&p, 2, &u->term)) |
1318 | return 0; |
1319 | if (!uaudio_getnum(&p, 1, &assoc)) |
1320 | return 0; |
1321 | if (u->term >> 8 != 1) |
1322 | sc->nin++; |
1323 | switch (sc->version) { |
1324 | case UAUDIO_V10x100: |
1325 | break; |
1326 | case UAUDIO_V20x200: |
1327 | if (!uaudio_getnum(&p, 1, &clk)) |
1328 | return 0; |
1329 | if (!uaudio_process_unit(sc, NULL((void *)0), |
1330 | clk, units, &u->clock)) |
1331 | return 0; |
1332 | break; |
1333 | } |
1334 | if (!uaudio_getnum(&p, 1, &u->nch)) |
1335 | return 0; |
1336 | DPRINTF("%02u: "do {} while(0) |
1337 | "in, nch = %d, term = 0x%x, assoc = %d\n",do {} while(0) |
1338 | u->id, u->nch, u->term, assoc)do {} while(0); |
1339 | break; |
1340 | case UAUDIO_AC_OUTPUT0x3: |
1341 | if (!uaudio_getnum(&p, 2, &u->term)) |
1342 | return 0; |
1343 | if (!uaudio_getnum(&p, 1, &assoc)) |
1344 | return 0; |
1345 | if (!uaudio_getnum(&p, 1, &id)) |
1346 | return 0; |
1347 | if (!uaudio_process_unit(sc, u, id, units, &s)) |
1348 | return 0; |
1349 | if (u->term >> 8 != 1) |
1350 | sc->nout++; |
1351 | switch (sc->version) { |
1352 | case UAUDIO_V10x100: |
1353 | break; |
1354 | case UAUDIO_V20x200: |
1355 | if (!uaudio_getnum(&p, 1, &clk)) |
1356 | return 0; |
1357 | if (!uaudio_process_unit(sc, NULL((void *)0), |
1358 | clk, units, &u->clock)) |
1359 | return 0; |
1360 | break; |
1361 | } |
1362 | u->src_list = s; |
1363 | s->src_next = NULL((void *)0); |
1364 | u->nch = s->nch; |
1365 | DPRINTF("%02u: "do {} while(0) |
1366 | "out, id = %d, nch = %d, term = 0x%x, assoc = %d\n",do {} while(0) |
1367 | u->id, id, u->nch, u->term, assoc)do {} while(0); |
1368 | break; |
1369 | case UAUDIO_AC_MIXER0x4: |
1370 | if (!uaudio_process_srcs(sc, u, units, &p)) |
1371 | return 0; |
1372 | if (!uaudio_process_nch(sc, u, &p)) |
1373 | return 0; |
1374 | DPRINTF("%02u: mixer, nch = %u:\n", u->id, u->nch)do {} while(0); |
1375 | |
1376 | #ifdef UAUDIO_DEBUG |
1377 | /* |
1378 | * Print the list of available mixer's unit knobs (a bit |
1379 | * matrix). Matrix mixers are rare because levels are |
1380 | * already controlled by feature units, making the mixer |
1381 | * knobs redundant with the feature's knobs. So, for |
1382 | * now, we don't add clutter to the mixer(4) interface |
1383 | * and ignore all knobs. Other popular OSes doesn't |
1384 | * seem to expose them either. |
1385 | */ |
1386 | bit = 0; |
1387 | for (s = u->src_list; s != NULL((void *)0); s = s->src_next) { |
1388 | for (i = 0; i < s->nch; i++) { |
1389 | for (j = 0; j < u->nch; j++) { |
1390 | if ((bit++ & 7) == 0) { |
1391 | if (!uaudio_getnum(&p, 1, &ctl)) |
1392 | return 0; |
1393 | } |
1394 | if (ctl & 0x80) |
1395 | DPRINTF("\t%02u[%d] -> [%d]\n",do {} while(0) |
1396 | s->id, i, j)do {} while(0); |
1397 | ctl <<= 1; |
1398 | } |
1399 | } |
1400 | } |
1401 | #endif |
1402 | break; |
1403 | case UAUDIO_AC_SELECTOR0x5: |
1404 | /* |
1405 | * Selectors are extremely rare, so not supported yet. |
1406 | */ |
1407 | if (!uaudio_process_srcs(sc, u, units, &p)) |
1408 | return 0; |
1409 | if (u->src_list == NULL((void *)0)) { |
1410 | printf("%s: selector %02u has no sources\n", |
1411 | DEVNAME(sc)((sc)->dev.dv_xname), u->id); |
1412 | return 0; |
1413 | } |
1414 | u->nch = u->src_list->nch; |
1415 | DPRINTF("%02u: selector, nch = %u\n", u->id, u->nch)do {} while(0); |
1416 | break; |
1417 | case UAUDIO_AC_FEATURE0x6: |
1418 | if (!uaudio_getnum(&p, 1, &id)) |
1419 | return 0; |
1420 | if (!uaudio_process_unit(sc, u, id, units, &s)) |
1421 | return 0; |
1422 | s->src_next = u->src_list; |
1423 | u->src_list = s; |
1424 | u->nch = s->nch; |
1425 | switch (sc->version) { |
1426 | case UAUDIO_V10x100: |
1427 | if (!uaudio_getnum(&p, 1, &size)) |
1428 | return 0; |
1429 | break; |
1430 | case UAUDIO_V20x200: |
1431 | size = 4; |
1432 | break; |
1433 | } |
1434 | DPRINTF("%02d: feature id = %d, nch = %d, size = %d\n",do {} while(0) |
1435 | u->id, id, u->nch, size)do {} while(0); |
1436 | |
1437 | if (!uaudio_getnum(&p, size, &ctl)) |
1438 | return 0; |
1439 | ctl = uaudio_feature_fixup(sc, ctl); |
1440 | for (i = 0; i < 16; i++) { |
1441 | if ((ctl & 3) == 3) |
1442 | uaudio_feature_addent(sc, u, i, -1); |
1443 | ctl >>= 2; |
1444 | } |
1445 | |
1446 | /* |
1447 | * certain devices provide no per-channel control descriptors |
1448 | */ |
1449 | if (p.wptr - p.rptr == 1) |
1450 | break; |
1451 | |
1452 | for (j = 0; j < u->nch; j++) { |
1453 | if (!uaudio_getnum(&p, size, &ctl)) |
1454 | return 0; |
1455 | ctl = uaudio_feature_fixup(sc, ctl); |
1456 | for (i = 0; i < 16; i++) { |
1457 | if ((ctl & 3) == 3) |
1458 | uaudio_feature_addent(sc, u, i, j); |
1459 | ctl >>= 2; |
1460 | } |
1461 | } |
1462 | break; |
1463 | case UAUDIO_AC_EFFECT0x7: |
1464 | if (!uaudio_getnum(&p, 2, &type)) |
1465 | return 0; |
1466 | if (!uaudio_getnum(&p, 1, &id)) |
1467 | return 0; |
1468 | if (!uaudio_process_unit(sc, u, id, units, &s)) |
1469 | return 0; |
1470 | s->src_next = u->src_list; |
1471 | u->src_list = s; |
1472 | u->nch = s->nch; |
1473 | DPRINTF("%02d: effect, type = %u, id = %d, nch = %d\n",do {} while(0) |
1474 | u->id, type, id, u->nch)do {} while(0); |
1475 | break; |
1476 | case UAUDIO_AC_PROCESSING0x8: |
1477 | case UAUDIO_AC_EXTENSION0x9: |
1478 | if (!uaudio_getnum(&p, 2, &type)) |
1479 | return 0; |
1480 | if (!uaudio_process_srcs(sc, u, units, &p)) |
1481 | return 0; |
1482 | if (!uaudio_process_nch(sc, u, &p)) |
1483 | return 0; |
1484 | DPRINTF("%02u: proc/ext, type = 0x%x, nch = %u\n",do {} while(0) |
1485 | u->id, type, u->nch)do {} while(0); |
1486 | for (s = u->src_list; s != NULL((void *)0); s = s->src_next) { |
1487 | DPRINTF("%u:\tpin %u:\n", u->id, s->id)do {} while(0); |
1488 | } |
1489 | break; |
1490 | case UAUDIO_AC_CLKSRC0xa: |
1491 | if (!uaudio_getnum(&p, 1, &u->term)) |
1492 | return 0; |
1493 | if (!uaudio_getnum(&p, 1, &ctl)) |
1494 | return 0; |
1495 | DPRINTF("%02u: clock source, attr = 0x%x, ctl = 0x%x\n",do {} while(0) |
1496 | u->id, u->term, ctl)do {} while(0); |
1497 | break; |
1498 | case UAUDIO_AC_CLKSEL0xb: |
1499 | DPRINTF("%02u: clock sel\n", u->id)do {} while(0); |
1500 | if (!uaudio_process_srcs(sc, u, units, &p)) |
1501 | return 0; |
1502 | if (u->src_list == NULL((void *)0)) { |
1503 | printf("%s: clock selector %02u with no srcs\n", |
1504 | DEVNAME(sc)((sc)->dev.dv_xname), u->id); |
1505 | return 0; |
1506 | } |
1507 | break; |
1508 | case UAUDIO_AC_CLKMULT0xc: |
1509 | DPRINTF("%02u: clock mult\n", u->id)do {} while(0); |
1510 | |
1511 | /* XXX: fetch multiplier */ |
1512 | printf("%s: clock multiplier not supported\n", DEVNAME(sc)((sc)->dev.dv_xname)); |
1513 | break; |
1514 | case UAUDIO_AC_RATECONV0xd: |
1515 | DPRINTF("%02u: rate conv\n", u->id)do {} while(0); |
1516 | |
1517 | /* XXX: fetch multiplier */ |
1518 | printf("%s: rate converter not supported\n", DEVNAME(sc)((sc)->dev.dv_xname)); |
1519 | break; |
1520 | } |
1521 | if (rchild) |
1522 | *rchild = u; |
1523 | return 1; |
1524 | } |
1525 | |
1526 | /* |
1527 | * Try to set the unit name to the name of its destination terminal. If |
1528 | * the name is ambiguous (already given to another source unit or having |
1529 | * multiple destinations) then return 0. |
1530 | */ |
1531 | int |
1532 | uaudio_setname_dsts(struct uaudio_softc *sc, struct uaudio_unit *u, char *name) |
1533 | { |
1534 | struct uaudio_unit *d = u; |
1535 | |
1536 | while (d != NULL((void *)0)) { |
1537 | if (d->dst_list == NULL((void *)0) || d->dst_list->dst_next != NULL((void *)0)) |
1538 | break; |
1539 | d = d->dst_list; |
1540 | if (d->src_list == NULL((void *)0) || d->src_list->src_next != NULL((void *)0)) |
1541 | break; |
1542 | if (d->name[0] != '\0') { |
1543 | if (name != NULL((void *)0) && strcmp(name, d->name) != 0) |
1544 | break; |
1545 | strlcpy(u->name, d->name, UAUDIO_NAMEMAX16); |
1546 | return 1; |
1547 | } |
1548 | } |
1549 | return 0; |
1550 | } |
1551 | |
1552 | /* |
1553 | * Try to set the unit name to the name of its source terminal. If the |
1554 | * name is ambiguous (already given to another destination unit or |
1555 | * having multiple sources) then return 0. |
1556 | */ |
1557 | int |
1558 | uaudio_setname_srcs(struct uaudio_softc *sc, struct uaudio_unit *u, char *name) |
1559 | { |
1560 | struct uaudio_unit *s = u; |
1561 | |
1562 | while (s != NULL((void *)0)) { |
1563 | if (s->src_list == NULL((void *)0) || s->src_list->src_next != NULL((void *)0)) |
1564 | break; |
1565 | s = s->src_list; |
1566 | if (s->dst_list == NULL((void *)0) || s->dst_list->dst_next != NULL((void *)0)) |
1567 | break; |
1568 | if (s->name[0] != '\0') { |
1569 | if (name != NULL((void *)0) && strcmp(name, s->name) != 0) |
1570 | break; |
1571 | strlcpy(u->name, s->name, UAUDIO_NAMEMAX16); |
1572 | return 1; |
1573 | } |
1574 | } |
1575 | return 0; |
1576 | } |
1577 | |
1578 | /* |
1579 | * Set the name of the given unit by using both its source and |
1580 | * destination units. This is naming scheme is only useful to units |
1581 | * that would have ambiguous names if only sources or only destination |
1582 | * were used. |
1583 | */ |
1584 | void |
1585 | uaudio_setname_middle(struct uaudio_softc *sc, struct uaudio_unit *u) |
1586 | { |
1587 | struct uaudio_unit *s, *d; |
1588 | char name[UAUDIO_NAMEMAX16]; |
1589 | |
1590 | s = u->src_list; |
1591 | while (1) { |
1592 | if (s == NULL((void *)0)) { |
1593 | DPRINTF("%s: %02u: has no srcs\n",do {} while(0) |
1594 | __func__, u->id)do {} while(0); |
1595 | return; |
1596 | } |
1597 | if (s->name[0] != '\0') |
1598 | break; |
1599 | s = s->src_list; |
1600 | } |
1601 | |
1602 | d = u->dst_list; |
1603 | while (1) { |
1604 | if (d == NULL((void *)0)) { |
1605 | DPRINTF("%s: %02u: has no dests\n",do {} while(0) |
1606 | __func__, u->id)do {} while(0); |
1607 | return; |
1608 | } |
1609 | if (d->name[0] != '\0') |
1610 | break; |
1611 | d = d->dst_list; |
1612 | } |
1613 | |
1614 | snprintf(name, UAUDIO_NAMEMAX16, "%s_%s", d->name, s->name); |
1615 | uaudio_mkname(sc, name, u->name); |
1616 | } |
1617 | |
1618 | #ifdef UAUDIO_DEBUG |
1619 | /* |
1620 | * Return the synchronization type name, for debug purposes only. |
1621 | */ |
1622 | char * |
1623 | uaudio_isoname(int isotype) |
1624 | { |
1625 | switch (isotype) { |
1626 | case UE_ISO_ASYNC0x04: |
1627 | return "async"; |
1628 | case UE_ISO_ADAPT0x08: |
1629 | return "adapt"; |
1630 | case UE_ISO_SYNC0x0c: |
1631 | return "sync"; |
1632 | default: |
1633 | return "unk"; |
1634 | } |
1635 | } |
1636 | |
1637 | /* |
1638 | * Return the name of the given mode, debug only |
1639 | */ |
1640 | char * |
1641 | uaudio_modename(int mode) |
1642 | { |
1643 | switch (mode) { |
1644 | case 0: |
1645 | return "none"; |
1646 | case AUMODE_PLAY0x01: |
1647 | return "play"; |
1648 | case AUMODE_RECORD0x02: |
1649 | return "rec"; |
1650 | case AUMODE_PLAY0x01 | AUMODE_RECORD0x02: |
1651 | return "duplex"; |
1652 | default: |
1653 | return "unk"; |
1654 | } |
1655 | } |
1656 | |
1657 | /* |
1658 | * Return UAC v2.0 endpoint usage, debug only |
1659 | */ |
1660 | char * |
1661 | uaudio_usagename(int usage) |
1662 | { |
1663 | switch (usage) { |
1664 | case UE_ISO_USAGE_DATA0x00: |
1665 | return "data"; |
1666 | case UE_ISO_USAGE_FEEDBACK0x10: |
1667 | return "feed"; |
1668 | case UE_ISO_USAGE_IMPL0x20: |
1669 | return "impl"; |
1670 | default: |
1671 | return "unk"; |
1672 | } |
1673 | } |
1674 | |
1675 | /* |
1676 | * Print a bitmap of rates on the console. |
1677 | */ |
1678 | void |
1679 | uaudio_rates_print(int rates) |
1680 | { |
1681 | unsigned int i; |
1682 | |
1683 | for (i = 0; i < nitems(uaudio_rates)(sizeof((uaudio_rates)) / sizeof((uaudio_rates)[0])); i++) { |
1684 | if (rates & (1 << i)) |
1685 | printf(" %d", uaudio_rates[i]); |
1686 | } |
1687 | printf("\n"); |
1688 | } |
1689 | |
1690 | |
1691 | /* |
1692 | * Print uaudio_ranges to console. |
1693 | */ |
1694 | void |
1695 | uaudio_ranges_print(struct uaudio_ranges *r) |
1696 | { |
1697 | struct uaudio_ranges_el *e; |
1698 | int more = 0; |
1699 | |
1700 | for (e = r->el; e != NULL((void *)0); e = e->next) { |
1701 | if (more) |
1702 | printf(", "); |
1703 | if (e->min == e->max) |
1704 | printf("%d", e->min); |
1705 | else |
1706 | printf("[%d:%d]/%d", e->min, e->max, e->res); |
1707 | more = 1; |
1708 | } |
1709 | printf(" (%d vals)\n", r->nval); |
1710 | } |
1711 | |
1712 | /* |
1713 | * Print unit to the console. |
1714 | */ |
1715 | void |
1716 | uaudio_print_unit(struct uaudio_softc *sc, struct uaudio_unit *u) |
1717 | { |
1718 | struct uaudio_unit *s; |
1719 | |
1720 | switch (u->type) { |
1721 | case UAUDIO_AC_INPUT0x2: |
1722 | printf("%02u: input <%s>, dest = %02u <%s>\n", |
1723 | u->id, u->name, u->dst_list->id, u->dst_list->name); |
1724 | break; |
1725 | case UAUDIO_AC_OUTPUT0x3: |
1726 | printf("%02u: output <%s>, source = %02u <%s>\n", |
1727 | u->id, u->name, u->src_list->id, u->src_list->name); |
1728 | break; |
1729 | case UAUDIO_AC_MIXER0x4: |
1730 | printf("%02u: mixer <%s>:\n", u->id, u->name); |
1731 | for (s = u->src_list; s != NULL((void *)0); s = s->src_next) |
1732 | printf("%02u:\tsource %u <%s>:\n", |
1733 | u->id, s->id, s->name); |
1734 | break; |
1735 | case UAUDIO_AC_SELECTOR0x5: |
1736 | printf("%02u: selector <%s>:\n", u->id, u->name); |
1737 | for (s = u->src_list; s != NULL((void *)0); s = s->src_next) |
1738 | printf("%02u:\tsource %u <%s>:\n", |
1739 | u->id, s->id, s->name); |
1740 | break; |
1741 | case UAUDIO_AC_FEATURE0x6: |
1742 | printf("%02u: feature <%s>, " |
1743 | "src = %02u <%s>, dst = %02u <%s>, cls = %d\n", |
1744 | u->id, u->name, |
1745 | u->src_list->id, u->src_list->name, |
1746 | u->dst_list->id, u->dst_list->name, u->mixer_class); |
1747 | break; |
1748 | case UAUDIO_AC_EFFECT0x7: |
1749 | printf("%02u: effect <%s>, " |
1750 | "src = %02u <%s>, dst = %02u <%s>\n", |
1751 | u->id, u->name, |
1752 | u->src_list->id, u->src_list->name, |
1753 | u->dst_list->id, u->dst_list->name); |
1754 | break; |
1755 | case UAUDIO_AC_PROCESSING0x8: |
1756 | case UAUDIO_AC_EXTENSION0x9: |
1757 | printf("%02u: proc/ext <%s>:\n", u->id, u->name); |
1758 | for (s = u->src_list; s != NULL((void *)0); s = s->src_next) |
1759 | printf("%02u:\tsource %u <%s>:\n", |
1760 | u->id, s->id, s->name); |
1761 | break; |
1762 | case UAUDIO_AC_CLKSRC0xa: |
1763 | printf("%02u: clock source <%s>\n", u->id, u->name); |
1764 | break; |
1765 | case UAUDIO_AC_CLKSEL0xb: |
1766 | printf("%02u: clock sel <%s>\n", u->id, u->name); |
1767 | break; |
1768 | case UAUDIO_AC_CLKMULT0xc: |
1769 | printf("%02u: clock mult\n", u->id); |
1770 | break; |
1771 | case UAUDIO_AC_RATECONV0xd: |
1772 | printf("%02u: rate conv\n", u->id); |
1773 | break; |
1774 | } |
1775 | } |
1776 | |
1777 | /* |
1778 | * Print the full mixer on the console. |
1779 | */ |
1780 | void |
1781 | uaudio_mixer_print(struct uaudio_softc *sc) |
1782 | { |
1783 | struct uaudio_mixent *m; |
1784 | struct uaudio_unit *u; |
1785 | |
1786 | for (u = sc->unit_list; u != NULL((void *)0); u = u->unit_next) { |
1787 | for (m = u->mixent_list; m != NULL((void *)0); m = m->next) { |
1788 | printf("%02u:\t%s.%s", |
1789 | u->id, u->name, m->fname); |
1790 | if (m->chan >= 0) |
1791 | printf("[%u]", m->chan); |
1792 | printf("\n"); |
1793 | } |
1794 | } |
1795 | } |
1796 | |
1797 | /* |
1798 | * Print the full device configuration on the console. |
1799 | */ |
1800 | void |
1801 | uaudio_conf_print(struct uaudio_softc *sc) |
1802 | { |
1803 | struct uaudio_alt *a; |
1804 | struct uaudio_params *p; |
1805 | struct mixer_devinfo mi; |
1806 | struct mixer_ctrl ctl; |
1807 | int i, rates; |
1808 | |
1809 | mi.index = 0; |
1810 | while (1) { |
1811 | if (uaudio_query_devinfo(sc, &mi) != 0) |
1812 | break; |
1813 | |
1814 | if (mi.type != AUDIO_MIXER_CLASS0) { |
1815 | ctl.dev = mi.index; |
1816 | if (uaudio_get_port(sc, &ctl) != 0) { |
1817 | printf("%02u: failed to get port\n", mi.index); |
1818 | memset(&ctl.un, 0, sizeof(ctl.un))__builtin_memset((&ctl.un), (0), (sizeof(ctl.un))); |
1819 | } |
1820 | } |
1821 | |
1822 | printf("%02u: <%s>, next = %d, prev = %d, class = %d", |
1823 | mi.index, mi.label.name, mi.next, mi.prev, mi.mixer_class); |
1824 | |
1825 | switch (mi.type) { |
1826 | case AUDIO_MIXER_CLASS0: |
1827 | break; |
1828 | case AUDIO_MIXER_VALUE3: |
1829 | printf(", nch = %d, delta = %d", |
1830 | mi.un.v.num_channels, mi.un.v.delta); |
1831 | printf(", val ="); |
1832 | for (i = 0; i < mi.un.v.num_channels; i++) |
1833 | printf(" %d", ctl.un.value.level[i]); |
1834 | break; |
1835 | case AUDIO_MIXER_ENUM1: |
1836 | printf(", members:"); |
1837 | for (i = 0; i != mi.un.e.num_mem; i++) { |
1838 | printf(" %s(=%d)", |
1839 | mi.un.e.member[i].label.name, |
1840 | mi.un.e.member[i].ord); |
1841 | } |
1842 | printf(", val = %d", ctl.un.ord); |
1843 | break; |
1844 | } |
1845 | |
1846 | printf("\n"); |
1847 | mi.index++; |
1848 | } |
1849 | |
1850 | printf("%d controls\n", mi.index); |
1851 | |
1852 | printf("alts:\n"); |
1853 | for (a = sc->alts; a != NULL((void *)0); a = a->next) { |
1854 | rates = uaudio_alt_getrates(sc, a); |
1855 | printf("mode = %s, ifnum = %d, altnum = %d, " |
1856 | "addr = 0x%x, maxpkt = %d, sync = 0x%x, " |
1857 | "nch = %d, fmt = s%dle%d, rates:", |
1858 | uaudio_modename(a->mode), |
1859 | a->ifnum, a->altnum, |
1860 | a->data_addr, a->maxpkt, |
1861 | a->sync_addr, |
1862 | a->nch, a->bits, a->bps); |
1863 | uaudio_rates_print(rates); |
1864 | } |
1865 | |
1866 | printf("parameters:\n"); |
1867 | for (p = sc->params_list; p != NULL((void *)0); p = p->next) { |
1868 | switch (sc->version) { |
1869 | case UAUDIO_V10x100: |
1870 | rates = p->v1_rates; |
1871 | break; |
1872 | case UAUDIO_V20x200: |
1873 | rates = uaudio_getrates(sc, p); |
1874 | break; |
1875 | } |
1876 | printf("pchan = %d, s%dle%d, rchan = %d, s%dle%d, rates:", |
1877 | p->palt ? p->palt->nch : 0, |
1878 | p->palt ? p->palt->bits : 0, |
1879 | p->palt ? p->palt->bps : 0, |
1880 | p->ralt ? p->ralt->nch : 0, |
1881 | p->ralt ? p->ralt->bits : 0, |
1882 | p->ralt ? p->ralt->bps : 0); |
1883 | uaudio_rates_print(rates); |
1884 | } |
1885 | } |
1886 | #endif |
1887 | |
1888 | /* |
1889 | * Return the number of mixer controls that have the same name but |
1890 | * control different channels of the same stream. |
1891 | */ |
1892 | int |
1893 | uaudio_mixer_nchan(struct uaudio_mixent *m, struct uaudio_mixent **rnext) |
1894 | { |
1895 | char *name; |
1896 | int i; |
1897 | |
1898 | i = 0; |
1899 | name = m->fname; |
1900 | while (m != NULL((void *)0) && strcmp(name, m->fname) == 0) { |
1901 | m = m->next; |
1902 | i++; |
1903 | } |
1904 | if (rnext) |
1905 | *rnext = m; |
1906 | return i; |
1907 | } |
1908 | |
1909 | /* |
1910 | * Skip redundant mixer entries that we don't want to expose to userland. |
1911 | * For instance if there is a mute-all-channels control and per-channel |
1912 | * mute controls, we don't want both (we expose the per-channel mute) |
1913 | */ |
1914 | void |
1915 | uaudio_mixer_skip(struct uaudio_mixent **pm) |
1916 | { |
1917 | struct uaudio_mixent *m = *pm; |
1918 | |
1919 | if (m != NULL((void *)0) && |
1920 | m->chan == -1 && |
1921 | m->next != NULL((void *)0) && |
1922 | strcmp(m->fname, m->next->fname) == 0) |
1923 | m = m->next; |
1924 | |
1925 | *pm = m; |
1926 | } |
1927 | |
1928 | /* |
1929 | * Return pointer to the unit and mixer entry which have the given |
1930 | * index exposed by the mixer(4) API. |
1931 | */ |
1932 | int |
1933 | uaudio_mixer_byindex(struct uaudio_softc *sc, int index, |
1934 | struct uaudio_unit **ru, struct uaudio_mixent **rm) |
1935 | { |
1936 | struct uaudio_unit *u; |
1937 | struct uaudio_mixent *m; |
1938 | char *name; |
1939 | int i; |
1940 | |
1941 | i = UAUDIO_CLASS_COUNT2; |
1942 | for (u = sc->unit_list; u != NULL((void *)0); u = u->unit_next) { |
1943 | m = u->mixent_list; |
1944 | while (1) { |
1945 | uaudio_mixer_skip(&m); |
1946 | if (m == NULL((void *)0)) |
1947 | break; |
1948 | if (index == i) { |
1949 | *ru = u; |
1950 | *rm = m; |
1951 | return 1; |
1952 | } |
1953 | if (m->type == UAUDIO_MIX_NUM1) { |
1954 | name = m->fname; |
1955 | while (m != NULL((void *)0) && |
1956 | strcmp(name, m->fname) == 0) |
1957 | m = m->next; |
1958 | } else |
1959 | m = m->next; |
1960 | i++; |
1961 | } |
1962 | } |
1963 | return 0; |
1964 | } |
1965 | |
1966 | /* |
1967 | * Parse AC header descriptor, we use it only to determine UAC |
1968 | * version. Other properties (like wTotalLength) can be determined |
1969 | * using other descriptors, so we try to no rely on them to avoid |
1970 | * inconsistencies and the need for certain quirks. |
1971 | */ |
1972 | int |
1973 | uaudio_process_header(struct uaudio_softc *sc, struct uaudio_blob *p) |
1974 | { |
1975 | struct uaudio_blob ph; |
1976 | unsigned int type, subtype; |
1977 | |
1978 | if (!uaudio_getdesc(p, &ph)) |
1979 | return 0; |
1980 | if (!uaudio_getnum(&ph, 1, &type)) |
1981 | return 0; |
1982 | if (type != UDESC_CS_INTERFACE0x24) { |
1983 | DPRINTF("%s: expected cs iface desc\n", __func__)do {} while(0); |
1984 | return 0; |
1985 | } |
1986 | if (!uaudio_getnum(&ph, 1, &subtype)) |
1987 | return 0; |
1988 | if (subtype != UAUDIO_AC_HEADER0x1) { |
1989 | DPRINTF("%s: expected header desc\n", __func__)do {} while(0); |
1990 | return 0; |
1991 | } |
1992 | if (!uaudio_getnum(&ph, 2, &sc->version)) |
1993 | return 0; |
1994 | |
1995 | DPRINTF("%s: version 0x%x\n", __func__, sc->version)do {} while(0); |
1996 | return 1; |
1997 | } |
1998 | |
1999 | /* |
2000 | * Process AC interrupt endpoint descriptor, this is mainly to skip |
2001 | * the descriptor as we use neither of its properties. Our mixer |
2002 | * interface doesn't support unsolicitated state changes, so we've no |
2003 | * use of it yet. |
2004 | */ |
2005 | int |
2006 | uaudio_process_ac_ep(struct uaudio_softc *sc, struct uaudio_blob *p) |
2007 | { |
2008 | #ifdef UAUDIO_DEBUG |
2009 | static const char *xfer[] = { |
2010 | "ctl", "iso", "bulk", "intr" |
2011 | }; |
2012 | #endif |
2013 | struct uaudio_blob dp; |
2014 | unsigned int type, addr, attr, maxpkt, ival; |
2015 | unsigned char *savepos; |
2016 | |
2017 | /* |
2018 | * parse optional interrupt endpoint descriptor |
2019 | */ |
2020 | if (p->rptr == p->wptr) |
2021 | return 1; |
2022 | savepos = p->rptr; |
2023 | if (!uaudio_getdesc(p, &dp)) |
2024 | return 0; |
2025 | if (!uaudio_getnum(&dp, 1, &type)) |
2026 | return 0; |
2027 | if (type != UDESC_ENDPOINT0x05) { |
2028 | p->rptr = savepos; |
2029 | return 1; |
2030 | } |
2031 | |
2032 | if (!uaudio_getnum(&dp, 1, &addr)) |
2033 | return 0; |
2034 | if (!uaudio_getnum(&dp, 1, &attr)) |
2035 | return 0; |
2036 | if (!uaudio_getnum(&dp, 2, &maxpkt)) |
2037 | return 0; |
2038 | if (!uaudio_getnum(&dp, 1, &ival)) |
2039 | return 0; |
2040 | |
2041 | DPRINTF("%s: addr = 0x%x, type = %s, maxpkt = %d, ival = %d\n",do {} while(0) |
2042 | __func__, addr, xfer[UE_GET_XFERTYPE(attr)],do {} while(0) |
2043 | UE_GET_SIZE(maxpkt), ival)do {} while(0); |
2044 | |
2045 | return 1; |
2046 | } |
2047 | |
2048 | /* |
2049 | * Process the AC interface descriptors: mainly build the mixer and, |
2050 | * for UAC v2.0, find the clock source. |
2051 | * |
2052 | * The audio device exposes an audio control (AC) interface with a big |
2053 | * set of USB descriptors which expose the complete circuit the |
2054 | * device. The circuit describes how the signal flows between the USB |
2055 | * streaming interfaces to the terminal connectors (jacks, speakers, |
2056 | * mics, ...). The circuit is build of mixers, source selectors, gain |
2057 | * controls, mutters, processors, and alike; each comes with its own |
2058 | * set of controls. Most of the boring driver work is to parse the |
2059 | * circuit and build a human-usable set of controls that could be |
2060 | * exposed through the mixer(4) interface. |
2061 | */ |
2062 | int |
2063 | uaudio_process_ac(struct uaudio_softc *sc, struct uaudio_blob *p, int ifnum) |
2064 | { |
2065 | struct uaudio_blob units, pu; |
2066 | struct uaudio_unit *u, *v; |
2067 | unsigned char *savepos; |
2068 | unsigned int type, subtype, id; |
2069 | char *name, val; |
2070 | |
2071 | DPRINTF("%s: ifnum = %d, %zd bytes to process\n", __func__,do {} while(0) |
2072 | ifnum, p->wptr - p->rptr)do {} while(0); |
2073 | |
2074 | sc->ctl_ifnum = ifnum; |
2075 | |
2076 | /* The first AC class-specific descriptor is the AC header */ |
2077 | if (!uaudio_process_header(sc, p)) |
2078 | return 0; |
2079 | |
2080 | /* |
2081 | * Determine the size of the AC descriptors array: scan |
2082 | * descriptors until we get the first non-class-specific |
2083 | * descriptor. This avoids relying on the wTotalLength field. |
2084 | */ |
2085 | savepos = p->rptr; |
2086 | units.rptr = units.wptr = p->rptr; |
2087 | while (p->rptr != p->wptr) { |
2088 | if (!uaudio_getdesc(p, &pu)) |
2089 | return 0; |
2090 | if (!uaudio_getnum(&pu, 1, &type)) |
2091 | return 0; |
2092 | if (type != UDESC_CS_INTERFACE0x24) |
2093 | break; |
2094 | units.wptr = p->rptr; |
2095 | } |
2096 | p->rptr = savepos; |
2097 | |
2098 | /* |
2099 | * Load units, walking from outputs to inputs, as |
2100 | * the usb audio class spec requires. |
2101 | */ |
2102 | while (p->rptr != units.wptr) { |
2103 | if (!uaudio_getdesc(p, &pu)) |
2104 | return 0; |
2105 | if (!uaudio_getnum(&pu, 1, &type)) |
2106 | return 0; |
2107 | if (!uaudio_getnum(&pu, 1, &subtype)) |
2108 | return 0; |
2109 | if (subtype == UAUDIO_AC_OUTPUT0x3) { |
2110 | if (!uaudio_getnum(&pu, 1, &id)) |
2111 | return 0; |
2112 | if (!uaudio_process_unit(sc, NULL((void *)0), id, units, NULL((void *)0))) |
2113 | return 0; |
2114 | } |
2115 | } |
2116 | |
2117 | /* |
2118 | * set terminal, effect, and processor unit names |
2119 | */ |
2120 | for (u = sc->unit_list; u != NULL((void *)0); u = u->unit_next) { |
2121 | switch (u->type) { |
2122 | case UAUDIO_AC_INPUT0x2: |
2123 | uaudio_mkname(sc, uaudio_tname(sc, u->term, 0), u->name); |
2124 | break; |
2125 | case UAUDIO_AC_OUTPUT0x3: |
2126 | uaudio_mkname(sc, uaudio_tname(sc, u->term, 1), u->name); |
2127 | break; |
2128 | case UAUDIO_AC_CLKSRC0xa: |
2129 | uaudio_mkname(sc, uaudio_clkname(u->term), u->name); |
2130 | break; |
2131 | case UAUDIO_AC_CLKSEL0xb: |
2132 | uaudio_mkname(sc, "clksel", u->name); |
2133 | break; |
2134 | case UAUDIO_AC_EFFECT0x7: |
2135 | uaudio_mkname(sc, "fx", u->name); |
2136 | break; |
2137 | case UAUDIO_AC_PROCESSING0x8: |
2138 | uaudio_mkname(sc, "proc", u->name); |
2139 | break; |
2140 | case UAUDIO_AC_EXTENSION0x9: |
2141 | uaudio_mkname(sc, "ext", u->name); |
2142 | break; |
2143 | } |
2144 | } |
2145 | |
2146 | /* |
2147 | * set mixer/selector unit names |
2148 | */ |
2149 | for (u = sc->unit_list; u != NULL((void *)0); u = u->unit_next) { |
2150 | if (u->type != UAUDIO_AC_MIXER0x4 && |
2151 | u->type != UAUDIO_AC_SELECTOR0x5) |
2152 | continue; |
2153 | if (!uaudio_setname_dsts(sc, u, NULL((void *)0))) { |
2154 | switch (u->type) { |
2155 | case UAUDIO_AC_MIXER0x4: |
2156 | name = "mix"; |
2157 | break; |
2158 | case UAUDIO_AC_SELECTOR0x5: |
2159 | name = "sel"; |
2160 | break; |
2161 | } |
2162 | uaudio_mkname(sc, name, u->name); |
2163 | } |
2164 | } |
2165 | |
2166 | /* |
2167 | * set feature unit names and classes |
2168 | */ |
2169 | for (u = sc->unit_list; u != NULL((void *)0); u = u->unit_next) { |
2170 | if (u->type != UAUDIO_AC_FEATURE0x6) |
2171 | continue; |
2172 | if (uaudio_setname_dsts(sc, u, UAUDIO_NAME_REC"record")) { |
2173 | u->mixer_class = UAUDIO_CLASS_IN1; |
2174 | continue; |
2175 | } |
2176 | if (uaudio_setname_srcs(sc, u, UAUDIO_NAME_PLAY"dac")) { |
2177 | u->mixer_class = UAUDIO_CLASS_OUT0; |
2178 | continue; |
2179 | } |
2180 | if (uaudio_setname_dsts(sc, u, NULL((void *)0))) { |
2181 | u->mixer_class = UAUDIO_CLASS_OUT0; |
2182 | continue; |
2183 | } |
2184 | if (uaudio_setname_srcs(sc, u, NULL((void *)0))) { |
2185 | u->mixer_class = UAUDIO_CLASS_IN1; |
2186 | continue; |
2187 | } |
2188 | uaudio_setname_middle(sc, u); |
2189 | u->mixer_class = UAUDIO_CLASS_IN1; |
2190 | } |
2191 | |
2192 | #ifdef UAUDIO_DEBUG |
2193 | if (uaudio_debug) { |
2194 | printf("%s: units list:\n", DEVNAME(sc)((sc)->dev.dv_xname)); |
2195 | for (u = sc->unit_list; u != NULL((void *)0); u = u->unit_next) |
2196 | uaudio_print_unit(sc, u); |
2197 | |
2198 | printf("%s: mixer controls:\n", DEVNAME(sc)((sc)->dev.dv_xname)); |
2199 | uaudio_mixer_print(sc); |
2200 | } |
2201 | #endif |
2202 | |
2203 | /* follows optional interrupt endpoint descriptor */ |
2204 | if (!uaudio_process_ac_ep(sc, p)) |
2205 | return 0; |
2206 | |
2207 | /* fetch clock source rates */ |
2208 | for (u = sc->unit_list; u != NULL((void *)0); u = u->unit_next) { |
2209 | switch (u->type) { |
2210 | case UAUDIO_AC_CLKSRC0xa: |
2211 | if (!uaudio_req_ranges(sc, 4, |
2212 | UAUDIO_V2_REQSEL_CLKFREQ1, |
2213 | 0, /* channel (not used) */ |
2214 | sc->ctl_ifnum, |
2215 | u->id, |
2216 | &u->rates)) { |
2217 | printf("%s: failed to read clock rates\n", |
2218 | DEVNAME(sc)((sc)->dev.dv_xname)); |
2219 | return 0; |
2220 | } |
2221 | #ifdef UAUDIO_DEBUG |
2222 | if (uaudio_debug) { |
2223 | printf("%02u: clock rates: ", u->id); |
2224 | uaudio_ranges_print(&u->rates); |
2225 | } |
2226 | #endif |
2227 | break; |
2228 | case UAUDIO_AC_CLKSEL0xb: |
2229 | if (!uaudio_req(sc, UT_READ_CLASS_INTERFACE(0x80 | 0x20 | 0x01), |
2230 | UAUDIO_V2_REQ_CUR1, |
2231 | UAUDIO_V2_REQSEL_CLKSEL1, 0, |
2232 | sc->ctl_ifnum, u->id, |
2233 | &val, 1)) { |
2234 | printf("%s: failed to read clock selector\n", |
2235 | DEVNAME(sc)((sc)->dev.dv_xname)); |
2236 | return 0; |
2237 | } |
2238 | for (v = u->src_list; v != NULL((void *)0); v = v->src_next) { |
2239 | if (--val == 0) |
2240 | break; |
2241 | } |
2242 | u->clock = v; |
2243 | break; |
2244 | } |
2245 | } |
2246 | |
2247 | if (sc->version == UAUDIO_V20x200) { |
2248 | /* |
2249 | * Find common clock unit. We assume all terminals |
2250 | * belong to the same clock domain (ie are connected |
2251 | * to the same source) |
2252 | */ |
2253 | sc->clock = NULL((void *)0); |
2254 | for (u = sc->unit_list; u != NULL((void *)0); u = u->unit_next) { |
2255 | if (u->type != UAUDIO_AC_INPUT0x2 && |
2256 | u->type != UAUDIO_AC_OUTPUT0x3) |
2257 | continue; |
2258 | if (sc->clock == NULL((void *)0)) { |
2259 | if (u->clock == NULL((void *)0)) { |
2260 | printf("%s: terminal with no clock\n", |
2261 | DEVNAME(sc)((sc)->dev.dv_xname)); |
2262 | return 0; |
2263 | } |
2264 | sc->clock = u->clock; |
2265 | } else if (u->clock != sc->clock) { |
2266 | printf("%s: only one clock domain supported\n", |
2267 | DEVNAME(sc)((sc)->dev.dv_xname)); |
2268 | return 0; |
2269 | } |
2270 | } |
2271 | |
2272 | if (sc->clock == NULL((void *)0)) { |
2273 | printf("%s: no clock found\n", DEVNAME(sc)((sc)->dev.dv_xname)); |
2274 | return 0; |
2275 | } |
2276 | } |
2277 | return 1; |
2278 | } |
2279 | |
2280 | /* |
2281 | * Parse endpoint descriptor with the following format: |
2282 | * |
2283 | * For playback there's a output data endpoint, of the |
2284 | * following types: |
2285 | * |
2286 | * type sync descr |
2287 | * ------------------------------------------------------- |
2288 | * async: Yes the device uses its own clock but |
2289 | * sends feedback on a (input) sync endpoint |
2290 | * for the host to adjust next packet size |
2291 | * |
2292 | * sync: - data rate is constant, and device |
2293 | * is clocked to the usb bus. |
2294 | * |
2295 | * adapt: - the device adapts to data rate of the |
2296 | * host. If fixed packet size is used, |
2297 | * data rate is equivalent to the usb clock |
2298 | * so this mode is the same as the |
2299 | * sync mode. |
2300 | * |
2301 | * For recording there's and input data endpoint, of |
2302 | * the following types: |
2303 | * |
2304 | * type sync descr |
2305 | * ------------------------------------------------------- |
2306 | * async: - the device uses its own clock and |
2307 | * adjusts packet sizes. |
2308 | * |
2309 | * sync: - the device uses usb clock rate |
2310 | * |
2311 | * adapt: Yes the device uses host's feedback (on |
2312 | * on a dedicated (output) sync endpoint |
2313 | * to adapt to software's desired rate |
2314 | * |
2315 | * |
2316 | * For usb1.1 ival is cardcoded to 1 for isochronous |
2317 | * transfers, which means one transfer every ms. I.e one |
2318 | * transfer every frame period. |
2319 | * |
2320 | * For usb2, ival the poll interval is: |
2321 | * |
2322 | * frame_period * 2^(ival - 1) |
2323 | * |
2324 | * so, if we use this formula, we get something working in all |
2325 | * cases. |
2326 | * |
2327 | * The MaxPacketsOnly attribute is used only by "Type II" encodings, |
2328 | * so we don't care about it. |
2329 | */ |
2330 | int |
2331 | uaudio_process_as_ep(struct uaudio_softc *sc, |
2332 | struct uaudio_blob *p, struct uaudio_alt *a, int nep) |
2333 | { |
2334 | unsigned int addr, attr, maxpkt, isotype, ival; |
2335 | |
2336 | if (!uaudio_getnum(p, 1, &addr)) |
2337 | return 0; |
2338 | if (!uaudio_getnum(p, 1, &attr)) |
2339 | return 0; |
2340 | if (!uaudio_getnum(p, 2, &maxpkt)) |
2341 | return 0; |
2342 | if (!uaudio_getnum(p, 1, &ival)) /* bInterval */ |
2343 | return 0; |
2344 | |
2345 | DPRINTF("%s: addr = 0x%x, %s/%s, "do {} while(0) |
2346 | "maxpktsz = %d, ival = %d\n",do {} while(0) |
2347 | __func__, addr,do {} while(0) |
2348 | uaudio_isoname(UE_GET_ISO_TYPE(attr)),do {} while(0) |
2349 | uaudio_usagename(UE_GET_ISO_USAGE(attr)),do {} while(0) |
2350 | maxpkt, ival)do {} while(0); |
2351 | |
2352 | if (UE_GET_XFERTYPE(attr)((attr) & 0x03) != UE_ISOCHRONOUS0x01) { |
2353 | printf("%s: skipped non-isoc endpt.\n", DEVNAME(sc)((sc)->dev.dv_xname)); |
2354 | return 1; |
2355 | } |
2356 | |
2357 | /* |
2358 | * For each AS interface setting, there's a single data |
2359 | * endpoint and an optional feedback endpoint. The |
2360 | * synchronization type is non-zero and must be set in the data |
2361 | * endpoints. |
2362 | * |
2363 | * However, the isoc sync type field of the attribute can't be |
2364 | * trusted: a lot of devices have it wrong. If the isoc sync |
2365 | * type is set it's necessarily a data endpoint, if it's not, |
2366 | * then if it is the only endpoint, it necessarily the data |
2367 | * endpoint. |
2368 | */ |
2369 | isotype = UE_GET_ISO_TYPE(attr)((attr) & 0x0c); |
2370 | if (isotype || nep == 1) { |
2371 | /* this is the data endpoint */ |
2372 | |
2373 | if (a->data_addr && addr != a->data_addr) { |
2374 | printf("%s: skipped extra data endpt.\n", DEVNAME(sc)((sc)->dev.dv_xname)); |
2375 | return 1; |
2376 | } |
2377 | |
2378 | a->mode = (UE_GET_DIR(addr)((addr) & 0x80) == UE_DIR_IN0x80) ? |
2379 | AUMODE_RECORD0x02 : AUMODE_PLAY0x01; |
2380 | a->data_addr = addr; |
2381 | a->fps = sc->ufps / (1 << (ival - 1)); |
2382 | a->maxpkt = UE_GET_SIZE(maxpkt)((maxpkt) & 0x7ff); |
2383 | } else { |
2384 | /* this is the sync endpoint */ |
2385 | |
2386 | if (a->sync_addr && addr != a->sync_addr) { |
2387 | printf("%s: skipped extra sync endpt.\n", DEVNAME(sc)((sc)->dev.dv_xname)); |
2388 | return 1; |
2389 | } |
2390 | a->sync_addr = addr; |
2391 | } |
2392 | |
2393 | return 1; |
2394 | } |
2395 | |
2396 | /* |
2397 | * Parse AS general descriptor. Non-PCM interfaces are skipped. UAC |
2398 | * v2.0 report the number of channels. For UAC v1.0 we set the number |
2399 | * of channels to zero, it will be determined later from the format |
2400 | * descriptor. |
2401 | */ |
2402 | int |
2403 | uaudio_process_as_general(struct uaudio_softc *sc, |
2404 | struct uaudio_blob *p, int *rispcm, struct uaudio_alt *a) |
2405 | { |
2406 | unsigned int term, fmt, ctl, fmt_type, fmt_map, nch; |
2407 | |
2408 | if (!uaudio_getnum(p, 1, &term)) |
2409 | return 0; |
2410 | switch (sc->version) { |
2411 | case UAUDIO_V10x100: |
2412 | if (!uaudio_getnum(p, 1, NULL((void *)0))) /* bDelay */ |
2413 | return 0; |
2414 | if (!uaudio_getnum(p, 1, &fmt)) |
2415 | return 0; |
2416 | *rispcm = (fmt == UAUDIO_V1_FMT_PCM0x1); |
2417 | break; |
2418 | case UAUDIO_V20x200: |
2419 | /* XXX: should we check if alt setting control is valid ? */ |
2420 | if (!uaudio_getnum(p, 1, &ctl)) |
2421 | return 0; |
2422 | if (!uaudio_getnum(p, 1, &fmt_type)) |
2423 | return 0; |
2424 | if (!uaudio_getnum(p, 4, &fmt_map)) |
2425 | return 0; |
2426 | if (!uaudio_getnum(p, 1, &nch)) |
2427 | return 0; |
2428 | a->nch = nch; |
2429 | *rispcm = (fmt_type == 1) && (fmt_map & UAUDIO_V2_FMT_PCM0x01); |
2430 | } |
2431 | return 1; |
2432 | } |
2433 | |
2434 | /* |
2435 | * Parse AS format descriptor: we support only "Type 1" formats, aka |
2436 | * PCM. Other formats are not really audio, they are data-only |
2437 | * interfaces that we don't want to support: ethernet is much better |
2438 | * for raw data transfers. |
2439 | * |
2440 | * XXX: handle ieee 754 32-bit floating point formats. |
2441 | */ |
2442 | int |
2443 | uaudio_process_as_format(struct uaudio_softc *sc, |
2444 | struct uaudio_blob *p, struct uaudio_alt *a, int *ispcm) |
2445 | { |
2446 | unsigned int type, bps, bits, nch, nrates, rate_min, rate_max, rates; |
2447 | int i, j; |
2448 | |
2449 | switch (sc->version) { |
2450 | case UAUDIO_V10x100: |
2451 | if (!uaudio_getnum(p, 1, &type)) |
2452 | return 0; |
2453 | if (type != 1) { |
2454 | DPRINTF("%s: class v1: "do {} while(0) |
2455 | "skipped unsupported type = %d\n", __func__, type)do {} while(0); |
2456 | *ispcm = 0; |
2457 | return 1; |
2458 | } |
2459 | if (!uaudio_getnum(p, 1, &nch)) |
2460 | return 0; |
2461 | if (!uaudio_getnum(p, 1, &bps)) |
2462 | return 0; |
2463 | if (!uaudio_getnum(p, 1, &bits)) |
2464 | return 0; |
2465 | if (!uaudio_getnum(p, 1, &nrates)) |
2466 | return 0; |
2467 | rates = 0; |
2468 | if (nrates == 0) { |
2469 | if (!uaudio_getnum(p, 3, &rate_min)) |
2470 | return 0; |
2471 | if (!uaudio_getnum(p, 3, &rate_max)) |
2472 | return 0; |
2473 | for (i = 0; i < nitems(uaudio_rates)(sizeof((uaudio_rates)) / sizeof((uaudio_rates)[0])); i++) { |
2474 | if (uaudio_rates[i] >= rate_min && |
2475 | uaudio_rates[i] <= rate_max) |
2476 | rates |= 1 << i; |
2477 | } |
2478 | } else { |
2479 | for (j = 0; j < nrates; j++) { |
2480 | if (!uaudio_getnum(p, 3, &rate_min)) |
2481 | return 0; |
2482 | for (i = 0; i < nitems(uaudio_rates)(sizeof((uaudio_rates)) / sizeof((uaudio_rates)[0])); i++) { |
2483 | if (uaudio_rates[i] == rate_min) |
2484 | rates |= 1 << i; |
2485 | } |
2486 | } |
2487 | } |
2488 | a->v1_rates = rates; |
2489 | a->nch = nch; |
2490 | break; |
2491 | case UAUDIO_V20x200: |
2492 | /* |
2493 | * sample rate ranges are obtained with requests to |
2494 | * the clock source, as defined by the clock source |
2495 | * descriptor |
2496 | * |
2497 | * the number of channels is in the GENERAL descriptor |
2498 | */ |
2499 | if (!uaudio_getnum(p, 1, &type)) |
2500 | return 0; |
2501 | if (type != 1) { |
2502 | DPRINTF("%s: class v2: "do {} while(0) |
2503 | "skipped unsupported type = %d\n", __func__, type)do {} while(0); |
2504 | *ispcm = 0; |
2505 | return 1; |
2506 | } |
2507 | if (!uaudio_getnum(p, 1, &bps)) |
2508 | return 0; |
2509 | if (!uaudio_getnum(p, 1, &bits)) |
2510 | return 0; |
2511 | |
2512 | /* |
2513 | * nch is in the v2 general desc, rates come from the |
2514 | * clock source, so we're done. |
2515 | */ |
2516 | break; |
2517 | } |
2518 | a->bps = bps; |
2519 | a->bits = bits; |
2520 | *ispcm = 1; |
2521 | return 1; |
2522 | } |
2523 | |
2524 | /* |
2525 | * Parse AS descriptors. |
2526 | * |
2527 | * The audio streaming (AS) interfaces are used to move data between |
2528 | * the host and the device. On the one hand, the device has |
2529 | * analog-to-digital (ADC) and digital-to-analog (DAC) converters |
2530 | * which have their own low-jitter clock source. On other hand, the |
2531 | * USB host runs a bus clock using another clock source. So both |
2532 | * drift. That's why, the device sends feedback to the driver for the |
2533 | * host to adjust continuously its data rate, hence the need for sync |
2534 | * endpoints. |
2535 | */ |
2536 | int |
2537 | uaudio_process_as(struct uaudio_softc *sc, |
2538 | struct uaudio_blob *p, int ifnum, int altnum, int nep) |
2539 | { |
2540 | struct uaudio_alt *a, *anext, **pa; |
2541 | struct uaudio_blob dp; |
2542 | unsigned char *savep; |
2543 | unsigned int type, subtype; |
2544 | int ispcm = 0; |
2545 | |
2546 | a = malloc(sizeof(struct uaudio_alt), M_USBDEV102, M_WAITOK0x0001); |
2547 | a->mode = 0; |
2548 | a->nch = 0; |
2549 | a->v1_rates = 0; |
2550 | a->data_addr = 0; |
2551 | a->sync_addr = 0; |
2552 | a->ifnum = ifnum; |
2553 | a->altnum = altnum; |
2554 | |
2555 | while (p->rptr != p->wptr) { |
2556 | savep = p->rptr; |
2557 | if (!uaudio_getdesc(p, &dp)) |
2558 | goto failed; |
2559 | if (!uaudio_getnum(&dp, 1, &type)) |
2560 | goto failed; |
2561 | if (type != UDESC_CS_INTERFACE0x24) { |
2562 | p->rptr = savep; |
2563 | break; |
2564 | } |
2565 | if (!uaudio_getnum(&dp, 1, &subtype)) |
2566 | goto failed; |
2567 | switch (subtype) { |
2568 | case UAUDIO_AS_GENERAL0x1: |
2569 | if (!uaudio_process_as_general(sc, &dp, &ispcm, a)) |
2570 | goto failed; |
2571 | break; |
2572 | case UAUDIO_AS_FORMAT0x2: |
2573 | if (!uaudio_process_as_format(sc, &dp, a, &ispcm)) |
2574 | goto failed; |
2575 | break; |
2576 | default: |
2577 | DPRINTF("%s: unknown desc\n", __func__)do {} while(0); |
2578 | continue; |
2579 | } |
2580 | if (!ispcm) { |
2581 | DPRINTF("%s: non-pcm iface\n", __func__)do {} while(0); |
2582 | free(a, M_USBDEV102, sizeof(struct uaudio_alt)); |
2583 | return 1; |
2584 | } |
2585 | } |
2586 | |
2587 | while (p->rptr != p->wptr) { |
2588 | savep = p->rptr; |
2589 | if (!uaudio_getdesc(p, &dp)) |
2590 | goto failed; |
2591 | if (!uaudio_getnum(&dp, 1, &type)) |
2592 | goto failed; |
2593 | if (type == UDESC_CS_ENDPOINT0x25) |
2594 | continue; |
2595 | if (type != UDESC_ENDPOINT0x05) { |
2596 | p->rptr = savep; |
2597 | break; |
2598 | } |
2599 | if (!uaudio_process_as_ep(sc, &dp, a, nep)) |
2600 | goto failed; |
2601 | } |
2602 | |
2603 | if (a->mode == 0) { |
2604 | printf("%s: no data endpoints found\n", DEVNAME(sc)((sc)->dev.dv_xname)); |
2605 | free(a, M_USBDEV102, sizeof(struct uaudio_alt)); |
2606 | return 1; |
2607 | } |
2608 | |
2609 | /* |
2610 | * Append to list of alts, but keep the list sorted by number |
2611 | * of channels, bits and rate. From the most capable to the |
2612 | * less capable. |
2613 | */ |
2614 | pa = &sc->alts; |
2615 | while (1) { |
2616 | if ((anext = *pa) == NULL((void *)0)) |
2617 | break; |
2618 | if (a->nch > anext->nch) |
2619 | break; |
2620 | else if (a->nch == anext->nch) { |
2621 | if (a->bits > anext->bits) |
2622 | break; |
2623 | else if (sc->version == UAUDIO_V10x100 && |
2624 | a->v1_rates > anext->v1_rates) |
2625 | break; |
2626 | } |
2627 | pa = &anext->next; |
2628 | } |
2629 | a->next = *pa; |
2630 | *pa = a; |
2631 | return 1; |
2632 | failed: |
2633 | free(a, M_USBDEV102, sizeof(struct uaudio_alt)); |
2634 | return 0; |
2635 | } |
2636 | |
2637 | /* |
2638 | * Populate the sc->params_list with combinations of play and rec alt |
2639 | * settings that work together in full-duplex. |
2640 | */ |
2641 | void |
2642 | uaudio_fixup_params(struct uaudio_softc *sc) |
2643 | { |
2644 | struct uaudio_alt *ap, *ar, *a; |
2645 | struct uaudio_params *p, **pp; |
2646 | int rates; |
2647 | |
2648 | /* |
2649 | * Add full-duplex parameter combinations. |
2650 | */ |
2651 | pp = &sc->params_list; |
2652 | for (ap = sc->alts; ap != NULL((void *)0); ap = ap->next) { |
2653 | if (ap->mode != AUMODE_PLAY0x01) |
2654 | continue; |
2655 | for (ar = sc->alts; ar != NULL((void *)0); ar = ar->next) { |
2656 | if (ar->mode != AUMODE_RECORD0x02) |
2657 | continue; |
2658 | if (ar->bps != ap->bps || ar->bits != ap->bits) |
2659 | continue; |
2660 | switch (sc->version) { |
2661 | case UAUDIO_V10x100: |
2662 | rates = ap->v1_rates & ar->v1_rates; |
2663 | if (rates == 0) |
2664 | continue; |
2665 | break; |
2666 | case UAUDIO_V20x200: |
2667 | /* UAC v2.0 common rates */ |
2668 | rates = 0; |
2669 | break; |
2670 | } |
2671 | p = malloc(sizeof(struct uaudio_params), |
2672 | M_USBDEV102, M_WAITOK0x0001); |
2673 | p->palt = ap; |
2674 | p->ralt = ar; |
2675 | p->v1_rates = rates; |
2676 | p->next = NULL((void *)0); |
2677 | *pp = p; |
2678 | pp = &p->next; |
2679 | } |
2680 | } |
2681 | |
2682 | /* |
2683 | * For unidirectional devices, add play-only and or rec-only |
2684 | * parameters. |
2685 | */ |
2686 | if (sc->params_list == NULL((void *)0)) { |
2687 | for (a = sc->alts; a != NULL((void *)0); a = a->next) { |
2688 | p = malloc(sizeof(struct uaudio_params), |
2689 | M_USBDEV102, M_WAITOK0x0001); |
2690 | if (a->mode == AUMODE_PLAY0x01) { |
2691 | p->palt = a; |
2692 | p->ralt = NULL((void *)0); |
2693 | } else { |
2694 | p->palt = NULL((void *)0); |
2695 | p->ralt = a; |
2696 | } |
2697 | p->v1_rates = a->v1_rates; |
2698 | p->next = NULL((void *)0); |
2699 | *pp = p; |
2700 | pp = &p->next; |
2701 | } |
2702 | } |
2703 | } |
2704 | |
2705 | /* |
2706 | * Parse all descriptors and build configuration of the device. |
2707 | */ |
2708 | int |
2709 | uaudio_process_conf(struct uaudio_softc *sc, struct uaudio_blob *p) |
2710 | { |
2711 | struct uaudio_blob dp; |
2712 | struct uaudio_alt *a; |
2713 | unsigned int type, ifnum, altnum, nep, class, subclass; |
2714 | |
2715 | while (p->rptr != p->wptr) { |
2716 | if (!uaudio_getdesc(p, &dp)) |
2717 | return 0; |
2718 | if (!uaudio_getnum(&dp, 1, &type)) |
2719 | return 0; |
2720 | if (type != UDESC_INTERFACE0x04) |
2721 | continue; |
2722 | if (!uaudio_getnum(&dp, 1, &ifnum)) |
2723 | return 0; |
2724 | if (!uaudio_getnum(&dp, 1, &altnum)) |
2725 | return 0; |
2726 | if (!uaudio_getnum(&dp, 1, &nep)) |
2727 | return 0; |
2728 | if (!uaudio_getnum(&dp, 1, &class)) |
2729 | return 0; |
2730 | if (!uaudio_getnum(&dp, 1, &subclass)) |
2731 | return 0; |
2732 | if (class != UICLASS_AUDIO0x01) { |
2733 | DPRINTF("%s: skipped iface\n", __func__)do {} while(0); |
2734 | continue; |
2735 | } |
2736 | |
2737 | switch (subclass) { |
2738 | case UISUBCLASS_AUDIOCONTROL1: |
2739 | if (usbd_iface_claimed(sc->udev, ifnum)) { |
2740 | DPRINTF("%s: %d: AC already claimed\n", __func__, ifnum)do {} while(0); |
2741 | break; |
2742 | } |
2743 | if (sc->unit_list != NULL((void *)0)) { |
2744 | DPRINTF("%s: >1 AC ifaces\n", __func__)do {} while(0); |
2745 | goto done; |
2746 | } |
2747 | if (!uaudio_process_ac(sc, p, ifnum)) |
2748 | return 0; |
2749 | break; |
2750 | case UISUBCLASS_AUDIOSTREAM2: |
2751 | if (usbd_iface_claimed(sc->udev, ifnum)) { |
2752 | DPRINTF("%s: %d: AS already claimed\n", __func__, ifnum)do {} while(0); |
2753 | break; |
2754 | } |
2755 | if (nep == 0) { |
2756 | DPRINTF("%s: "do {} while(0) |
2757 | "stop altnum %d\n", __func__, altnum)do {} while(0); |
2758 | break; /* 0 is "stop sound", skip it */ |
2759 | } |
2760 | if (!uaudio_process_as(sc, p, ifnum, altnum, nep)) |
2761 | return 0; |
2762 | } |
2763 | } |
2764 | done: |
2765 | uaudio_fixup_params(sc); |
2766 | |
2767 | /* |
2768 | * Claim all interfaces we use. This prevents other uaudio(4) |
2769 | * devices from trying to use them. |
2770 | */ |
2771 | for (a = sc->alts; a != NULL((void *)0); a = a->next) |
2772 | usbd_claim_iface(sc->udev, a->ifnum); |
2773 | |
2774 | usbd_claim_iface(sc->udev, sc->ctl_ifnum); |
2775 | |
2776 | return 1; |
2777 | } |
2778 | |
2779 | /* |
2780 | * Allocate a isochronous transfer and its bounce-buffers with the |
2781 | * given maximum framesize and maximum frames per transfer. |
2782 | */ |
2783 | int |
2784 | uaudio_xfer_alloc(struct uaudio_softc *sc, struct uaudio_xfer *xfer, |
2785 | unsigned int framesize, unsigned int count) |
2786 | { |
2787 | xfer->usb_xfer = usbd_alloc_xfer(sc->udev); |
2788 | if (xfer->usb_xfer == NULL((void *)0)) |
2789 | return ENOMEM12; |
2790 | |
2791 | xfer->buf = usbd_alloc_buffer(xfer->usb_xfer, framesize * count); |
2792 | if (xfer->buf == NULL((void *)0)) |
2793 | return ENOMEM12; |
2794 | |
2795 | xfer->sizes = mallocarray(count, |
2796 | sizeof(xfer->sizes[0]), M_USBDEV102, M_WAITOK0x0001); |
2797 | if (xfer->sizes == NULL((void *)0)) |
2798 | return ENOMEM12; |
2799 | |
2800 | return 0; |
2801 | } |
2802 | |
2803 | /* |
2804 | * Free a isochronous transfer and its bounce-buffers. |
2805 | */ |
2806 | void |
2807 | uaudio_xfer_free(struct uaudio_softc *sc, struct uaudio_xfer *xfer, |
2808 | unsigned int count) |
2809 | { |
2810 | if (xfer->usb_xfer != NULL((void *)0)) { |
2811 | /* frees request buffer as well */ |
2812 | usbd_free_xfer(xfer->usb_xfer); |
2813 | xfer->usb_xfer = NULL((void *)0); |
2814 | } |
2815 | if (xfer->sizes != NULL((void *)0)) { |
2816 | free(xfer->sizes, M_USBDEV102, |
2817 | sizeof(xfer->sizes[0]) * count); |
2818 | xfer->sizes = NULL((void *)0); |
2819 | } |
2820 | } |
2821 | |
2822 | /* |
2823 | * Close a stream and free all associated resources |
2824 | */ |
2825 | void |
2826 | uaudio_stream_close(struct uaudio_softc *sc, int dir) |
2827 | { |
2828 | struct uaudio_stream *s = &sc->pstream; |
Value stored to 's' during its initialization is never read | |
2829 | struct uaudio_alt *a = sc->params->palt; |
2830 | struct usbd_interface *iface; |
2831 | int err, i; |
2832 | |
2833 | if (dir == AUMODE_PLAY0x01) { |
2834 | s = &sc->pstream; |
2835 | a = sc->params->palt; |
2836 | } else { |
2837 | s = &sc->rstream; |
2838 | a = sc->params->ralt; |
2839 | } |
2840 | |
2841 | if (s->data_pipe) { |
2842 | usbd_close_pipe(s->data_pipe); |
2843 | s->data_pipe = NULL((void *)0); |
2844 | } |
2845 | |
2846 | if (s->sync_pipe) { |
2847 | usbd_close_pipe(s->sync_pipe); |
2848 | s->sync_pipe = NULL((void *)0); |
2849 | } |
2850 | |
2851 | err = usbd_device2interface_handle(sc->udev, a->ifnum, &iface); |
2852 | if (err) |
2853 | printf("%s: can't get iface handle\n", DEVNAME(sc)((sc)->dev.dv_xname)); |
2854 | else { |
2855 | err = usbd_set_interface(iface, 0); |
2856 | if (err) |
2857 | printf("%s: can't reset interface\n", DEVNAME(sc)((sc)->dev.dv_xname)); |
2858 | } |
2859 | |
2860 | for (i = 0; i < UAUDIO_NXFERS_MAX8; i++) { |
2861 | uaudio_xfer_free(sc, s->data_xfers + i, s->nframes_max); |
2862 | uaudio_xfer_free(sc, s->sync_xfers + i, 1); |
2863 | } |
2864 | } |
2865 | |
2866 | /* |
2867 | * Open a stream with the given buffer settings and set the current |
2868 | * interface alt setting. |
2869 | */ |
2870 | int |
2871 | uaudio_stream_open(struct uaudio_softc *sc, int dir, |
2872 | void *start, void *end, size_t blksz, void (*intr)(void *), void *arg) |
2873 | { |
2874 | struct uaudio_stream *s; |
2875 | struct uaudio_alt *a; |
2876 | struct usbd_interface *iface; |
2877 | unsigned char req_buf[4]; |
2878 | unsigned int bpa, spf_max, min_blksz; |
2879 | int err, clock_id, i; |
2880 | |
2881 | if (dir == AUMODE_PLAY0x01) { |
2882 | s = &sc->pstream; |
2883 | a = sc->params->palt; |
2884 | } else { |
2885 | s = &sc->rstream; |
2886 | a = sc->params->ralt; |
2887 | } |
2888 | |
2889 | for (i = 0; i < UAUDIO_NXFERS_MAX8; i++) { |
2890 | s->data_xfers[i].usb_xfer = NULL((void *)0); |
2891 | s->data_xfers[i].sizes = NULL((void *)0); |
2892 | s->sync_xfers[i].usb_xfer = NULL((void *)0); |
2893 | s->sync_xfers[i].sizes = NULL((void *)0); |
2894 | } |
2895 | s->data_pipe = NULL((void *)0); |
2896 | s->sync_pipe = NULL((void *)0); |
2897 | |
2898 | s->nframes_mask = 0; |
2899 | i = a->fps; |
2900 | while (i > 1000) { |
2901 | s->nframes_mask = (s->nframes_mask << 1) | 1; |
2902 | i >>= 1; |
2903 | } |
2904 | |
2905 | /* bytes per audio frame */ |
2906 | bpa = a->bps * a->nch; |
2907 | |
2908 | /* ideal samples per usb frame, fixed-point */ |
2909 | s->spf = (uint64_t)sc->rate * UAUDIO_SPF_DIV327680 / a->fps; |
2910 | |
2911 | /* |
2912 | * UAC2.0 spec allows 1000PPM tolerance in sample frequency, |
2913 | * while USB1.1 requires 1Hz, which is 125PPM at 8kHz. We |
2914 | * accept as much as 1/256, which is 2500PPM. |
2915 | */ |
2916 | s->spf_min = (uint64_t)s->spf * 255 / 256; |
2917 | s->spf_max = (uint64_t)s->spf * 257 / 256; |
2918 | |
2919 | /* max spf can't exceed the device usb packet size */ |
2920 | spf_max = (a->maxpkt / bpa) * UAUDIO_SPF_DIV327680; |
2921 | if (s->spf > spf_max) { |
2922 | printf("%s: samples per frame too large\n", DEVNAME(sc)((sc)->dev.dv_xname)); |
2923 | return EIO5; |
2924 | } |
2925 | if (s->spf_max > spf_max) |
2926 | s->spf_max = spf_max; |
2927 | |
2928 | /* |
2929 | * Upon transfer completion the device must reach the audio |
2930 | * block boundary, which is propagated to upper layers. In the |
2931 | * worst case, we schedule only frames of spf_max samples, but |
2932 | * the device returns only frames of spf_min samples; in this |
2933 | * case the amount actually transferred is at least: |
2934 | * |
2935 | * min_blksz = blksz / spf_max * spf_min |
2936 | * |
2937 | * As we've UAUDIO_NXFERS outstanding blocks, worst-case |
2938 | * remaining bytes is at most: |
2939 | * |
2940 | * UAUDIO_NXFERS * (blksz - min_blksz) |
2941 | */ |
2942 | min_blksz = (((uint64_t)blksz << 32) / s->spf_max * s->spf_min) >> 32; |
2943 | |
2944 | /* round to sample size */ |
2945 | min_blksz -= min_blksz % bpa; |
2946 | |
2947 | /* finally this is what ensures we cross block boundary */ |
2948 | s->safe_blksz = blksz + UAUDIO_NXFERS_MAX8 * (blksz - min_blksz); |
2949 | |
2950 | /* max number of (micro-)frames we'll ever use */ |
2951 | s->nframes_max = (uint64_t)(s->safe_blksz / bpa) * |
2952 | UAUDIO_SPF_DIV327680 / s->spf_min + 1; |
2953 | |
2954 | /* round to next usb1.1 frame */ |
2955 | s->nframes_max = (s->nframes_max + s->nframes_mask) & |
2956 | ~s->nframes_mask; |
2957 | |
2958 | /* this is the max packet size we'll ever need */ |
2959 | s->maxpkt = bpa * |
2960 | ((s->spf_max + UAUDIO_SPF_DIV327680 - 1) / UAUDIO_SPF_DIV327680); |
2961 | |
2962 | /* how many xfers we need to fill sc->host_nframes */ |
2963 | s->nxfers = sc->host_nframes / s->nframes_max; |
2964 | if (s->nxfers > UAUDIO_NXFERS_MAX8) |
2965 | s->nxfers = UAUDIO_NXFERS_MAX8; |
2966 | |
2967 | DPRINTF("%s: %s: blksz = %zu, rate = %u, fps = %u\n", __func__,do {} while(0) |
2968 | dir == AUMODE_PLAY ? "play" : "rec", blksz, sc->rate, a->fps)do {} while(0); |
2969 | DPRINTF("%s: spf = 0x%x in [0x%x:0x%x]\n", __func__,do {} while(0) |
2970 | s->spf, s->spf_min, s->spf_max)do {} while(0); |
2971 | DPRINTF("%s: nframes_max = %u, nframes_mask = %u, maxpkt = %u\n",do {} while(0) |
2972 | __func__, s->nframes_max, s->nframes_mask, s->maxpkt)do {} while(0); |
2973 | DPRINTF("%s: safe_blksz = %d, nxfers = %d\n", __func__,do {} while(0) |
2974 | s->safe_blksz, s->nxfers)do {} while(0); |
2975 | |
2976 | if (s->nxfers < UAUDIO_NXFERS_MIN2) { |
2977 | printf("%s: block size too large\n", DEVNAME(sc)((sc)->dev.dv_xname)); |
2978 | return EIO5; |
2979 | } |
2980 | |
2981 | /* |
2982 | * Require at least 2ms block size to ensure no |
2983 | * transfer exceeds two blocks. |
2984 | * |
2985 | * XXX: use s->nframes_mask instead of 1000 |
2986 | */ |
2987 | if (1000 * blksz < 2 * sc->rate * bpa) { |
2988 | printf("%s: audio block too small\n", DEVNAME(sc)((sc)->dev.dv_xname)); |
2989 | return EIO5; |
2990 | } |
2991 | |
2992 | for (i = 0; i < s->nxfers; i++) { |
2993 | err = uaudio_xfer_alloc(sc, s->data_xfers + i, |
2994 | s->maxpkt, s->nframes_max); |
2995 | if (err) |
2996 | goto failed; |
2997 | if (a->sync_addr) { |
2998 | err = uaudio_xfer_alloc(sc, s->sync_xfers + i, |
2999 | sc->sync_pktsz, 1); |
3000 | if (err) |
3001 | goto failed; |
3002 | } |
3003 | } |
3004 | |
3005 | err = usbd_device2interface_handle(sc->udev, a->ifnum, &iface); |
3006 | if (err) { |
3007 | printf("%s: can't get iface handle\n", DEVNAME(sc)((sc)->dev.dv_xname)); |
3008 | goto failed; |
3009 | } |
3010 | |
3011 | err = usbd_set_interface(iface, a->altnum); |
3012 | if (err) { |
3013 | printf("%s: can't set interface\n", DEVNAME(sc)((sc)->dev.dv_xname)); |
3014 | goto failed; |
3015 | } |
3016 | |
3017 | /* |
3018 | * Set the sample rate. |
3019 | * |
3020 | * Certain devices are able to lock their clock to the data |
3021 | * rate and expose no frequency control. In this case, the |
3022 | * request to set the frequency will fail, but this error is |
3023 | * safe to ignore. |
3024 | * |
3025 | * Such devices expose this capability in the class-specific |
3026 | * endpoint descriptor (UAC v1.0) or in the clock unit |
3027 | * descriptor (UAC v2.0) but we don't want to use them for now |
3028 | * as certain devices have them wrong, missing or misplaced. |
3029 | */ |
3030 | switch (sc->version) { |
3031 | case UAUDIO_V10x100: |
3032 | req_buf[0] = sc->rate; |
3033 | req_buf[1] = sc->rate >> 8; |
3034 | req_buf[2] = sc->rate >> 16; |
3035 | if (!uaudio_req(sc, UT_WRITE_CLASS_ENDPOINT(0x00 | 0x20 | 0x02), |
3036 | UAUDIO_V1_REQ_SET_CUR0x01, UAUDIO_REQSEL_RATE0x01, 0, |
3037 | a->data_addr, 0, req_buf, 3)) { |
3038 | DPRINTF("%s: not setting endpoint rate\n", __func__)do {} while(0); |
3039 | } |
3040 | break; |
3041 | case UAUDIO_V20x200: |
3042 | req_buf[0] = sc->rate; |
3043 | req_buf[1] = sc->rate >> 8; |
3044 | req_buf[2] = sc->rate >> 16; |
3045 | req_buf[3] = sc->rate >> 24; |
3046 | clock_id = uaudio_clock_id(sc); |
3047 | if (clock_id < 0) { |
3048 | printf("%s: can't get clock id\n", DEVNAME(sc)((sc)->dev.dv_xname)); |
3049 | goto failed; |
3050 | } |
3051 | if (!uaudio_req(sc, UT_WRITE_CLASS_INTERFACE(0x00 | 0x20 | 0x01), |
3052 | UAUDIO_V2_REQ_CUR1, UAUDIO_REQSEL_RATE0x01, 0, |
3053 | sc->ctl_ifnum, clock_id, req_buf, 4)) { |
3054 | DPRINTF("%s: not setting clock rate\n", __func__)do {} while(0); |
3055 | } |
3056 | break; |
3057 | } |
3058 | |
3059 | err = usbd_open_pipe(iface, a->data_addr, 0, &s->data_pipe); |
3060 | if (err) { |
3061 | printf("%s: can't open data pipe\n", DEVNAME(sc)((sc)->dev.dv_xname)); |
3062 | goto failed; |
3063 | } |
3064 | |
3065 | if (a->sync_addr) { |
3066 | err = usbd_open_pipe(iface, a->sync_addr, 0, &s->sync_pipe); |
3067 | if (err) { |
3068 | printf("%s: can't open sync pipe\n", DEVNAME(sc)((sc)->dev.dv_xname)); |
3069 | goto failed; |
3070 | } |
3071 | } |
3072 | |
3073 | s->data_nextxfer = 0; |
3074 | s->sync_nextxfer = 0; |
3075 | s->spf_remain = 0; |
3076 | |
3077 | s->intr = intr; |
3078 | s->arg = arg; |
3079 | s->ring_start = start; |
3080 | s->ring_end = end; |
3081 | s->ring_blksz = blksz; |
3082 | |
3083 | s->ring_pos = s->ring_start; |
3084 | s->ring_offs = 0; |
3085 | s->ring_icnt = 0; |
3086 | |
3087 | s->ubuf_xfer = 0; |
3088 | s->ubuf_pos = 0; |
3089 | return 0; |
3090 | |
3091 | failed: |
3092 | uaudio_stream_close(sc, dir); |
3093 | return ENOMEM12; |
3094 | } |
3095 | |
3096 | /* |
3097 | * Adjust play samples-per-frame to keep play and rec streams in sync. |
3098 | */ |
3099 | void |
3100 | uaudio_adjspf(struct uaudio_softc *sc) |
3101 | { |
3102 | struct uaudio_stream *s = &sc->pstream; |
3103 | int diff; |
3104 | |
3105 | if (sc->mode != (AUMODE_RECORD0x02 | AUMODE_PLAY0x01)) |
3106 | return; |
3107 | if (s->sync_pipe != NULL((void *)0)) |
3108 | return; |
3109 | |
3110 | /* |
3111 | * number of samples play stream is ahead of record stream. |
3112 | */ |
3113 | diff = sc->diff_nsamp; |
3114 | if (sc->diff_nframes > 0) { |
3115 | diff -= (uint64_t)sc->pstream.spf * |
3116 | sc->diff_nframes / UAUDIO_SPF_DIV327680; |
3117 | } else { |
3118 | diff += (uint64_t)sc->rstream.spf * |
3119 | -sc->diff_nframes / UAUDIO_SPF_DIV327680; |
3120 | } |
3121 | |
3122 | /* |
3123 | * adjust samples-per-frames to resync within the next second |
3124 | */ |
3125 | s->spf = (uint64_t)(sc->rate - diff) * UAUDIO_SPF_DIV327680 / sc->ufps; |
3126 | if (s->spf > s->spf_max) |
3127 | s->spf = s->spf_max; |
3128 | else if (s->spf < s->spf_min) |
3129 | s->spf = s->spf_min; |
3130 | #ifdef UAUDIO_DEBUG |
3131 | if (uaudio_debug >= 2) |
3132 | printf("%s: diff = %d, spf = 0x%x\n", __func__, diff, s->spf); |
3133 | #endif |
3134 | } |
3135 | |
3136 | /* |
3137 | * Copy one audio block to the xfer buffer. |
3138 | */ |
3139 | void |
3140 | uaudio_pdata_copy(struct uaudio_softc *sc) |
3141 | { |
3142 | struct uaudio_stream *s = &sc->pstream; |
3143 | struct uaudio_xfer *xfer; |
3144 | size_t count, avail; |
3145 | int index; |
3146 | #ifdef UAUDIO_DEBUG |
3147 | struct timeval tv; |
3148 | |
3149 | getmicrotime(&tv); |
3150 | #endif |
3151 | while (sc->copy_todo > 0 && s->ubuf_xfer < s->nxfers) { |
3152 | index = s->data_nextxfer + s->ubuf_xfer; |
3153 | if (index >= s->nxfers) |
3154 | index -= s->nxfers; |
3155 | xfer = s->data_xfers + index; |
3156 | avail = s->ring_end - s->ring_pos; |
3157 | count = xfer->size - s->ubuf_pos; |
3158 | if (count > avail) |
3159 | count = avail; |
3160 | if (count > sc->copy_todo) |
3161 | count = sc->copy_todo; |
3162 | #ifdef UAUDIO_DEBUG |
3163 | if (uaudio_debug >= 2) { |
3164 | printf("%s: %llu.%06lu: %zd..%zd -> %u:%u..%zu\n", |
3165 | __func__, tv.tv_sec, tv.tv_usec, |
3166 | s->ring_pos - s->ring_start, |
3167 | s->ring_pos - s->ring_start + count, |
3168 | s->ubuf_xfer, s->ubuf_pos, s->ubuf_pos + count); |
3169 | } |
3170 | #endif |
3171 | memcpy(xfer->buf + s->ubuf_pos, s->ring_pos, count)__builtin_memcpy((xfer->buf + s->ubuf_pos), (s->ring_pos ), (count)); |
3172 | sc->copy_todo -= count; |
3173 | s->ring_pos += count; |
3174 | if (s->ring_pos == s->ring_end) { |
3175 | s->ring_pos = s->ring_start; |
3176 | } |
3177 | s->ubuf_pos += count; |
3178 | if (s->ubuf_pos == xfer->size) { |
3179 | usb_syncmem(&xfer->usb_xfer->dmabuf, 0, xfer->size, |
3180 | BUS_DMASYNC_PREWRITE0x04); |
3181 | s->ubuf_pos = 0; |
3182 | #ifdef DIAGNOSTIC1 |
3183 | if (s->ubuf_xfer == s->nxfers) { |
3184 | printf("%s: overflow\n", __func__); |
3185 | return; |
3186 | } |
3187 | #endif |
3188 | s->ubuf_xfer++; |
3189 | } |
3190 | } |
3191 | } |
3192 | |
3193 | /* |
3194 | * Calculate and fill xfer frames sizes. |
3195 | */ |
3196 | void |
3197 | uaudio_pdata_calcsizes(struct uaudio_softc *sc, struct uaudio_xfer *xfer) |
3198 | { |
3199 | #ifdef UAUDIO_DEBUG |
3200 | struct timeval tv; |
3201 | #endif |
3202 | struct uaudio_stream *s = &sc->pstream; |
3203 | struct uaudio_alt *a = sc->params->palt; |
3204 | unsigned int fsize, bpf; |
3205 | int done; |
3206 | |
3207 | bpf = a->bps * a->nch; |
3208 | done = s->ring_offs; |
3209 | xfer->nframes = 0; |
3210 | |
3211 | while (1) { |
3212 | /* |
3213 | * if we crossed the next block boundary, we're done |
3214 | */ |
3215 | if ((xfer->nframes & s->nframes_mask) == 0 && |
3216 | done > s->safe_blksz) |
3217 | break; |
3218 | |
3219 | /* |
3220 | * this can't happen, debug only |
3221 | */ |
3222 | if (xfer->nframes == s->nframes_max) { |
3223 | printf("%s: too many frames for play xfer: " |
3224 | "done = %u, blksz = %d\n", |
3225 | DEVNAME(sc)((sc)->dev.dv_xname), done, s->ring_blksz); |
3226 | break; |
3227 | } |
3228 | |
3229 | /* |
3230 | * calculate frame size and adjust state |
3231 | */ |
3232 | s->spf_remain += s->spf; |
3233 | fsize = s->spf_remain / UAUDIO_SPF_DIV327680 * bpf; |
3234 | s->spf_remain %= UAUDIO_SPF_DIV327680; |
3235 | done += fsize; |
3236 | xfer->sizes[xfer->nframes] = fsize; |
3237 | xfer->nframes++; |
3238 | } |
3239 | |
3240 | xfer->size = done - s->ring_offs; |
3241 | s->ring_offs = done - s->ring_blksz; |
3242 | |
3243 | #ifdef UAUDIO_DEBUG |
3244 | if (uaudio_debug >= 3) { |
3245 | getmicrotime(&tv); |
3246 | printf("%s: size = %d, offs -> %d\n", __func__, |
3247 | xfer->size, s->ring_offs); |
3248 | } |
3249 | #endif |
3250 | memset(xfer->buf, 0, xfer->size)__builtin_memset((xfer->buf), (0), (xfer->size)); |
3251 | } |
3252 | |
3253 | /* |
3254 | * Submit a play data transfer to the USB driver. |
3255 | */ |
3256 | void |
3257 | uaudio_pdata_xfer(struct uaudio_softc *sc) |
3258 | { |
3259 | #ifdef UAUDIO_DEBUG |
3260 | struct timeval tv; |
3261 | #endif |
3262 | struct uaudio_stream *s = &sc->pstream; |
3263 | struct uaudio_xfer *xfer; |
3264 | int err; |
3265 | |
3266 | xfer = s->data_xfers + s->data_nextxfer; |
3267 | |
3268 | #ifdef UAUDIO_DEBUG |
3269 | if (uaudio_debug >= 3) { |
3270 | getmicrotime(&tv); |
3271 | printf("%s: %llu.%06lu: " |
3272 | "%d bytes, %u frames, remain = 0x%x, offs = %d\n", |
3273 | __func__, tv.tv_sec, tv.tv_usec, |
3274 | xfer->size, xfer->nframes, |
3275 | s->spf_remain, s->ring_offs); |
3276 | } |
3277 | #endif |
3278 | |
3279 | /* this can't happen, debug only */ |
3280 | if (xfer->nframes == 0) { |
3281 | printf("%s: zero frame play xfer\n", DEVNAME(sc)((sc)->dev.dv_xname)); |
3282 | return; |
3283 | } |
3284 | |
3285 | /* |
3286 | * We accept short transfers because in case of babble/stale frames |
3287 | * the transfer will be short |
3288 | */ |
3289 | usbd_setup_isoc_xfer(xfer->usb_xfer, s->data_pipe, sc, |
3290 | xfer->sizes, xfer->nframes, |
3291 | USBD_NO_COPY0x01 | USBD_SHORT_XFER_OK0x04, |
3292 | uaudio_pdata_intr); |
3293 | |
3294 | err = usbd_transfer(xfer->usb_xfer); |
3295 | if (err != 0 && err != USBD_IN_PROGRESS) |
3296 | printf("%s: play xfer, err = %d\n", DEVNAME(sc)((sc)->dev.dv_xname), err); |
3297 | |
3298 | if (++s->data_nextxfer == s->nxfers) |
3299 | s->data_nextxfer = 0; |
3300 | } |
3301 | |
3302 | /* |
3303 | * Callback called by the USB driver upon completion of play data transfer. |
3304 | */ |
3305 | void |
3306 | uaudio_pdata_intr(struct usbd_xfer *usb_xfer, void *arg, usbd_status status) |
3307 | { |
3308 | #ifdef UAUDIO_DEBUG |
3309 | struct timeval tv; |
3310 | #endif |
3311 | struct uaudio_softc *sc = arg; |
3312 | struct uaudio_stream *s = &sc->pstream; |
3313 | struct uaudio_xfer *xfer; |
3314 | uint32_t size; |
3315 | int nintr; |
3316 | |
3317 | if (status != 0 && status != USBD_IOERROR) { |
3318 | DPRINTF("%s: xfer status = %d\n", __func__, status)do {} while(0); |
3319 | return; |
3320 | } |
3321 | |
3322 | xfer = s->data_xfers + s->data_nextxfer; |
3323 | if (xfer->usb_xfer != usb_xfer) { |
3324 | DPRINTF("%s: wrong xfer\n", __func__)do {} while(0); |
3325 | return; |
3326 | } |
3327 | |
3328 | sc->diff_nsamp += xfer->size / |
3329 | (sc->params->palt->nch * sc->params->palt->bps); |
3330 | sc->diff_nframes += xfer->nframes; |
3331 | |
3332 | #ifdef UAUDIO_DEBUG |
3333 | if (uaudio_debug >= 2) { |
3334 | getmicrotime(&tv); |
3335 | printf("%s: %llu.%06lu: %u: %u bytes\n", |
3336 | __func__, tv.tv_sec, tv.tv_usec, |
3337 | s->data_nextxfer, xfer->size); |
3338 | } |
3339 | #endif |
3340 | usbd_get_xfer_status(usb_xfer, NULL((void *)0), NULL((void *)0), &size, NULL((void *)0)); |
3341 | if (size != xfer->size) { |
3342 | DPRINTF("%s: %u bytes out of %u: incomplete play xfer\n",do {} while(0) |
3343 | DEVNAME(sc), size, xfer->size)do {} while(0); |
3344 | } |
3345 | |
3346 | /* |
3347 | * Upper layer call-back may call uaudio_underrun(), which |
3348 | * needs the current size of this transfer. So, don't |
3349 | * recalculate the sizes and don't schedule the transfer yet. |
3350 | */ |
3351 | s->ring_icnt += xfer->size; |
3352 | nintr = 0; |
3353 | mtx_enter(&audio_lock); |
3354 | while (s->ring_icnt >= s->ring_blksz) { |
3355 | s->intr(s->arg); |
3356 | s->ring_icnt -= s->ring_blksz; |
3357 | nintr++; |
3358 | } |
3359 | mtx_leave(&audio_lock); |
3360 | if (nintr != 1) |
3361 | printf("%s: %d: bad play intr count\n", __func__, nintr); |
3362 | |
3363 | uaudio_pdata_calcsizes(sc, xfer); |
3364 | uaudio_pdata_xfer(sc); |
3365 | #ifdef DIAGNOSTIC1 |
3366 | if (s->ubuf_xfer == 0) { |
3367 | printf("%s: underflow\n", __func__); |
3368 | return; |
3369 | } |
3370 | #endif |
3371 | s->ubuf_xfer--; |
3372 | uaudio_pdata_copy(sc); |
3373 | } |
3374 | |
3375 | /* |
3376 | * Submit a play sync transfer to the USB driver. |
3377 | */ |
3378 | void |
3379 | uaudio_psync_xfer(struct uaudio_softc *sc) |
3380 | { |
3381 | #ifdef UAUDIO_DEBUG |
3382 | struct timeval tv; |
3383 | #endif |
3384 | struct uaudio_stream *s = &sc->pstream; |
3385 | struct uaudio_xfer *xfer; |
3386 | unsigned int i; |
3387 | int err; |
3388 | |
3389 | xfer = s->sync_xfers + s->sync_nextxfer; |
3390 | xfer->nframes = 1; |
3391 | |
3392 | for (i = 0; i < xfer->nframes; i++) |
3393 | xfer->sizes[i] = sc->sync_pktsz; |
3394 | |
3395 | xfer->size = xfer->nframes * sc->sync_pktsz; |
3396 | |
3397 | #ifdef UAUDIO_DEBUG |
3398 | memset(xfer->buf, 0xd0, sc->sync_pktsz * xfer->nframes)__builtin_memset((xfer->buf), (0xd0), (sc->sync_pktsz * xfer->nframes)); |
3399 | #endif |
3400 | |
3401 | usbd_setup_isoc_xfer(xfer->usb_xfer, s->sync_pipe, sc, |
3402 | xfer->sizes, xfer->nframes, |
3403 | USBD_NO_COPY0x01 | USBD_SHORT_XFER_OK0x04, |
3404 | uaudio_psync_intr); |
3405 | |
3406 | err = usbd_transfer(xfer->usb_xfer); |
3407 | if (err != 0 && err != USBD_IN_PROGRESS) |
3408 | printf("%s: sync play xfer, err = %d\n", DEVNAME(sc)((sc)->dev.dv_xname), err); |
3409 | |
3410 | if (++s->sync_nextxfer == s->nxfers) |
3411 | s->sync_nextxfer = 0; |
3412 | |
3413 | #ifdef UAUDIO_DEBUG |
3414 | if (uaudio_debug >= 3) { |
3415 | getmicrotime(&tv); |
3416 | printf("%s: %llu.%06lu: %dB, %d fr\n", __func__, |
3417 | tv.tv_sec, tv.tv_usec, sc->sync_pktsz, xfer->nframes); |
3418 | } |
3419 | #endif |
3420 | } |
3421 | |
3422 | /* |
3423 | * Callback called by the USB driver upon completion of play sync transfer. |
3424 | */ |
3425 | void |
3426 | uaudio_psync_intr(struct usbd_xfer *usb_xfer, void *arg, usbd_status status) |
3427 | { |
3428 | #ifdef UAUDIO_DEBUG |
3429 | struct timeval tv; |
3430 | #endif |
3431 | struct uaudio_softc *sc = arg; |
3432 | struct uaudio_stream *s = &sc->pstream; |
3433 | struct uaudio_xfer *xfer; |
3434 | unsigned char *buf; |
3435 | unsigned int i; |
3436 | int32_t val; |
3437 | |
3438 | if (status != 0) { |
3439 | DPRINTF("%s: xfer status = %d\n", __func__, status)do {} while(0); |
3440 | return; |
3441 | } |
3442 | |
3443 | xfer = s->sync_xfers + s->sync_nextxfer; |
3444 | if (xfer->usb_xfer != usb_xfer) { |
3445 | DPRINTF("%s: wrong xfer\n", __func__)do {} while(0); |
3446 | return; |
3447 | } |
3448 | |
3449 | /* XXX: there's only one frame, the loop is not necessary */ |
3450 | |
3451 | buf = xfer->buf; |
3452 | for (i = 0; i < xfer->nframes; i++) { |
3453 | if (xfer->sizes[i] == sc->sync_pktsz) { |
3454 | val = buf[0] | buf[1] << 8 | buf[2] << 16; |
3455 | if (sc->sync_pktsz == 4) |
3456 | val |= xfer->buf[3] << 24; |
3457 | else |
3458 | val <<= 2; |
3459 | val *= UAUDIO_SPF_DIV327680 / (1 << 16); |
3460 | #ifdef UAUDIO_DEBUG |
3461 | if (uaudio_debug >= 2) { |
3462 | getmicrotime(&tv); |
3463 | printf("%s: %llu.%06lu: spf: %08x\n", |
3464 | __func__, tv.tv_sec, tv.tv_usec, val); |
3465 | } |
3466 | #endif |
3467 | if (val > s->spf_max) |
3468 | s->spf = s->spf_max; |
3469 | else if (val < s->spf_min) |
3470 | s->spf = s->spf_min; |
3471 | else |
3472 | s->spf = val; |
3473 | } |
3474 | buf += sc->sync_pktsz; |
3475 | } |
3476 | |
3477 | uaudio_psync_xfer(sc); |
3478 | } |
3479 | |
3480 | /* |
3481 | * Submit a rec data transfer to the USB driver. |
3482 | */ |
3483 | void |
3484 | uaudio_rdata_xfer(struct uaudio_softc *sc) |
3485 | { |
3486 | #ifdef UAUDIO_DEBUG |
3487 | struct timeval tv; |
3488 | #endif |
3489 | struct uaudio_stream *s = &sc->rstream; |
3490 | struct uaudio_alt *a = sc->params->ralt; |
3491 | struct uaudio_xfer *xfer; |
3492 | unsigned int fsize, bpf; |
3493 | int done; |
3494 | int err; |
3495 | |
3496 | xfer = s->data_xfers + s->data_nextxfer; |
3497 | bpf = a->bps * a->nch; |
3498 | xfer->nframes = 0; |
3499 | done = s->ring_offs; |
3500 | |
3501 | while (1) { |
3502 | /* |
3503 | * if we crossed the next block boundary, we're done |
3504 | */ |
3505 | if ((xfer->nframes & s->nframes_mask) == 0 && |
3506 | done > s->safe_blksz) { |
3507 | done: |
3508 | xfer->size = done - s->ring_offs; |
3509 | s->ring_offs = done - s->ring_blksz; |
3510 | break; |
3511 | } |
3512 | |
3513 | /* |
3514 | * this can't happen, debug only |
3515 | */ |
3516 | if (xfer->nframes == s->nframes_max) { |
3517 | printf("%s: too many frames for rec xfer: " |
3518 | "done = %d, blksz = %d\n", |
3519 | DEVNAME(sc)((sc)->dev.dv_xname), done, s->ring_blksz); |
3520 | goto done; |
3521 | } |
3522 | |
3523 | /* |
3524 | * estimate next block using s->spf, but allow |
3525 | * transfers up to maxpkt |
3526 | */ |
3527 | s->spf_remain += s->spf; |
3528 | fsize = s->spf_remain / UAUDIO_SPF_DIV327680 * bpf; |
3529 | s->spf_remain %= UAUDIO_SPF_DIV327680; |
3530 | done += fsize; |
3531 | xfer->sizes[xfer->nframes] = s->maxpkt; |
3532 | xfer->nframes++; |
3533 | } |
3534 | |
3535 | #ifdef UAUDIO_DEBUG |
3536 | if (uaudio_debug >= 3) { |
3537 | getmicrotime(&tv); |
3538 | printf("%s: %llu.%06lu: " |
3539 | "%u fr, %d bytes (max %d), offs = %d\n", |
3540 | __func__, tv.tv_sec, tv.tv_usec, |
3541 | xfer->nframes, xfer->size, |
3542 | s->maxpkt * xfer->nframes, s->ring_offs); |
3543 | } |
3544 | #endif |
3545 | |
3546 | /* this can't happen, debug only */ |
3547 | if (xfer->nframes == 0) { |
3548 | printf("%s: zero frame rec xfer\n", DEVNAME(sc)((sc)->dev.dv_xname)); |
3549 | return; |
3550 | } |
3551 | |
3552 | #ifdef UAUDIO_DEBUG |
3553 | memset(xfer->buf, 0xd0, s->maxpkt * xfer->nframes)__builtin_memset((xfer->buf), (0xd0), (s->maxpkt * xfer ->nframes)); |
3554 | #endif |
3555 | usbd_setup_isoc_xfer(xfer->usb_xfer, s->data_pipe, sc, |
3556 | xfer->sizes, xfer->nframes, USBD_NO_COPY0x01 | USBD_SHORT_XFER_OK0x04, |
3557 | uaudio_rdata_intr); |
3558 | |
3559 | err = usbd_transfer(xfer->usb_xfer); |
3560 | if (err != 0 && err != USBD_IN_PROGRESS) |
3561 | printf("%s: rec xfer, err = %d\n", DEVNAME(sc)((sc)->dev.dv_xname), err); |
3562 | |
3563 | if (++s->data_nextxfer == s->nxfers) |
3564 | s->data_nextxfer = 0; |
3565 | } |
3566 | |
3567 | /* |
3568 | * Callback called by the USB driver upon completion of rec data transfer. |
3569 | */ |
3570 | void |
3571 | uaudio_rdata_intr(struct usbd_xfer *usb_xfer, void *arg, usbd_status status) |
3572 | { |
3573 | #ifdef UAUDIO_DEBUG |
3574 | struct timeval tv; |
3575 | #endif |
3576 | struct uaudio_softc *sc = arg; |
3577 | struct uaudio_stream *s = &sc->rstream; |
3578 | struct uaudio_alt *a = sc->params->ralt; |
3579 | struct uaudio_xfer *xfer; |
3580 | unsigned char *buf, *framebuf; |
3581 | unsigned int count, fsize, fsize_min, nframes, bpf; |
3582 | unsigned int data_size, null_count; |
3583 | unsigned int nintr; |
3584 | |
3585 | if (status != 0) { |
3586 | DPRINTF("%s: xfer status = %d\n", __func__, status)do {} while(0); |
3587 | return; |
3588 | } |
3589 | |
3590 | xfer = s->data_xfers + s->data_nextxfer; |
3591 | if (xfer->usb_xfer != usb_xfer) { |
3592 | DPRINTF("%s: wrong xfer\n", __func__)do {} while(0); |
3593 | return; |
3594 | } |
3595 | |
3596 | bpf = a->bps * a->nch; |
3597 | framebuf = xfer->buf; |
3598 | nframes = 0; |
3599 | null_count = 0; |
3600 | data_size = 0; |
3601 | fsize_min = s->spf_min / UAUDIO_SPF_DIV327680; |
3602 | for (nframes = 0; nframes < xfer->nframes; nframes++) { |
3603 | |
3604 | /* |
3605 | * Device clock may take some time to lock during which |
3606 | * we'd receive empty or incomplete packets for which we |
3607 | * need to generate silence. |
3608 | */ |
3609 | fsize = xfer->sizes[nframes]; |
3610 | if (fsize < fsize_min) { |
3611 | s->spf_remain += s->spf; |
3612 | fsize = s->spf_remain / UAUDIO_SPF_DIV327680 * bpf; |
3613 | s->spf_remain %= UAUDIO_SPF_DIV327680; |
3614 | memset(framebuf, 0, fsize)__builtin_memset((framebuf), (0), (fsize)); |
3615 | null_count++; |
3616 | } |
3617 | data_size += fsize; |
3618 | |
3619 | /* |
3620 | * fill ring from frame buffer, handling |
3621 | * boundary conditions |
3622 | */ |
3623 | buf = framebuf; |
3624 | while (fsize > 0) { |
3625 | count = s->ring_end - s->ring_pos; |
3626 | if (count > fsize) |
3627 | count = fsize; |
3628 | memcpy(s->ring_pos, buf, count)__builtin_memcpy((s->ring_pos), (buf), (count)); |
3629 | s->ring_pos += count; |
3630 | if (s->ring_pos == s->ring_end) |
3631 | s->ring_pos = s->ring_start; |
3632 | buf += count; |
3633 | fsize -= count; |
3634 | } |
3635 | |
3636 | framebuf += s->maxpkt; |
3637 | } |
3638 | |
3639 | s->ring_offs += data_size - xfer->size; |
3640 | s->ring_icnt += data_size; |
3641 | |
3642 | sc->diff_nsamp -= data_size / |
3643 | (sc->params->ralt->nch * sc->params->ralt->bps); |
3644 | sc->diff_nframes -= xfer->nframes; |
3645 | |
3646 | sc->adjspf_age += xfer->nframes; |
3647 | if (sc->adjspf_age >= sc->ufps / 8) { |
3648 | sc->adjspf_age -= sc->ufps / 8; |
3649 | uaudio_adjspf(sc); |
3650 | } |
3651 | |
3652 | #ifdef UAUDIO_DEBUG |
3653 | if (uaudio_debug >= 2) { |
3654 | getmicrotime(&tv); |
3655 | printf("%s: %llu.%06lu: %u: " |
3656 | "%u bytes of %u, offs -> %d\n", |
3657 | __func__, tv.tv_sec, tv.tv_usec, |
3658 | s->data_nextxfer, data_size, xfer->size, s->ring_offs); |
3659 | } |
3660 | if (null_count > 0) { |
3661 | DPRINTF("%s: %u null frames out of %u: incomplete record xfer\n",do {} while(0) |
3662 | DEVNAME(sc), null_count, xfer->nframes)do {} while(0); |
3663 | } |
3664 | #endif |
3665 | uaudio_rdata_xfer(sc); |
3666 | |
3667 | nintr = 0; |
3668 | mtx_enter(&audio_lock); |
3669 | while (s->ring_icnt >= s->ring_blksz) { |
3670 | s->intr(s->arg); |
3671 | s->ring_icnt -= s->ring_blksz; |
3672 | nintr++; |
3673 | } |
3674 | mtx_leave(&audio_lock); |
3675 | if (nintr != 1) |
3676 | printf("%s: %u: bad rec intr count\n", DEVNAME(sc)((sc)->dev.dv_xname), nintr); |
3677 | } |
3678 | |
3679 | /* |
3680 | * Start simultaneously playback and recording, unless trigger_input() |
3681 | * and trigger_output() were not both called yet. |
3682 | */ |
3683 | void |
3684 | uaudio_trigger(struct uaudio_softc *sc) |
3685 | { |
3686 | int i, s; |
3687 | |
3688 | if (sc->mode != sc->trigger_mode) |
3689 | return; |
3690 | |
3691 | DPRINTF("%s: preparing\n", __func__)do {} while(0); |
3692 | if (sc->mode & AUMODE_PLAY0x01) { |
3693 | for (i = 0; i < sc->pstream.nxfers; i++) |
3694 | uaudio_pdata_calcsizes(sc, sc->pstream.data_xfers + i); |
3695 | |
3696 | uaudio_pdata_copy(sc); |
3697 | } |
3698 | |
3699 | sc->diff_nsamp = 0; |
3700 | sc->diff_nframes = 0; |
3701 | sc->adjspf_age = 0; |
3702 | |
3703 | DPRINTF("%s: starting\n", __func__)do {} while(0); |
3704 | s = splusb()splraise(0x2); |
3705 | for (i = 0; i < UAUDIO_NXFERS_MAX8; i++) { |
3706 | if ((sc->mode & AUMODE_PLAY0x01) && i < sc->pstream.nxfers) { |
3707 | if (sc->pstream.sync_pipe) |
3708 | uaudio_psync_xfer(sc); |
3709 | uaudio_pdata_xfer(sc); |
3710 | } |
3711 | if ((sc->mode & AUMODE_RECORD0x02) && i < sc->rstream.nxfers) |
3712 | uaudio_rdata_xfer(sc); |
3713 | } |
3714 | splx(s)spllower(s); |
3715 | } |
3716 | |
3717 | void |
3718 | uaudio_print(struct uaudio_softc *sc) |
3719 | { |
3720 | struct uaudio_unit *u; |
3721 | struct uaudio_mixent *m; |
3722 | struct uaudio_params *p; |
3723 | int pchan = 0, rchan = 0, async = 0; |
3724 | int nctl = 0; |
3725 | |
3726 | for (u = sc->unit_list; u != NULL((void *)0); u = u->unit_next) { |
3727 | m = u->mixent_list; |
3728 | while (1) { |
3729 | uaudio_mixer_skip(&m); |
3730 | if (m == NULL((void *)0)) |
3731 | break; |
3732 | m = m->next; |
3733 | nctl++; |
3734 | } |
3735 | } |
3736 | |
3737 | for (p = sc->params_list; p != NULL((void *)0); p = p->next) { |
3738 | if (p->palt && p->palt->nch > pchan) |
3739 | pchan = p->palt->nch; |
3740 | if (p->ralt && p->ralt->nch > rchan) |
3741 | rchan = p->ralt->nch; |
3742 | if (p->palt && p->palt->sync_addr) |
3743 | async = 1; |
3744 | if (p->ralt && p->ralt->sync_addr) |
3745 | async = 1; |
3746 | } |
3747 | |
3748 | printf("%s: class v%d, %s, %s, channels: %d play, %d rec, %d ctls\n", |
3749 | DEVNAME(sc)((sc)->dev.dv_xname), |
3750 | sc->version >> 8, |
3751 | sc->ufps == 1000 ? "full-speed" : "high-speed", |
3752 | async ? "async" : "sync", |
3753 | pchan, rchan, nctl); |
3754 | } |
3755 | |
3756 | int |
3757 | uaudio_match(struct device *parent, void *match, void *aux) |
3758 | { |
3759 | struct usb_attach_arg *arg = aux; |
3760 | struct usb_interface_descriptor *idesc; |
3761 | |
3762 | if (arg->iface == NULL((void *)0) || arg->device == NULL((void *)0)) |
3763 | return UMATCH_NONE0; |
3764 | |
3765 | idesc = usbd_get_interface_descriptor(arg->iface); |
3766 | if (idesc == NULL((void *)0)) { |
3767 | DPRINTF("%s: couldn't get idesc\n", __func__)do {} while(0); |
3768 | return UMATCH_NONE0; |
3769 | } |
3770 | |
3771 | if (idesc->bInterfaceClass != UICLASS_AUDIO0x01 || |
3772 | idesc->bInterfaceSubClass != UISUBCLASS_AUDIOSTREAM2) |
3773 | return UMATCH_NONE0; |
3774 | |
3775 | return UMATCH_VENDOR_PRODUCT_CONF_IFACE8; |
3776 | } |
3777 | |
3778 | void |
3779 | uaudio_attach(struct device *parent, struct device *self, void *aux) |
3780 | { |
3781 | struct uaudio_softc *sc = (struct uaudio_softc *)self; |
3782 | struct usb_attach_arg *arg = aux; |
3783 | struct usb_config_descriptor *cdesc; |
3784 | struct uaudio_blob desc; |
3785 | |
3786 | /* |
3787 | * this device has audio AC or AS or MS interface, get the |
3788 | * full config descriptor and attach audio devices |
3789 | */ |
3790 | |
3791 | cdesc = usbd_get_config_descriptor(arg->device); |
3792 | if (cdesc == NULL((void *)0)) |
3793 | return; |
3794 | |
3795 | desc.rptr = (unsigned char *)cdesc; |
3796 | desc.wptr = desc.rptr + UGETW(cdesc->wTotalLength)(*(u_int16_t *)(cdesc->wTotalLength)); |
3797 | |
3798 | sc->udev = arg->device; |
3799 | sc->unit_list = NULL((void *)0); |
3800 | sc->names = NULL((void *)0); |
3801 | sc->alts = NULL((void *)0); |
3802 | sc->params_list = NULL((void *)0); |
3803 | sc->clock = NULL((void *)0); |
3804 | sc->params = NULL((void *)0); |
3805 | sc->rate = 0; |
3806 | sc->mode = 0; |
3807 | sc->trigger_mode = 0; |
3808 | sc->copy_todo = 0; |
3809 | |
3810 | /* |
3811 | * Ideally the USB host controller should expose the number of |
3812 | * frames we're allowed to schedule, but there's no such |
3813 | * interface. The uhci(4) driver can buffer up to 128 frames |
3814 | * (or it crashes), ehci(4) starts recording null frames if we |
3815 | * exceed 256 (micro-)frames, ohci(4) works with at most 50 |
3816 | * frames. |
3817 | */ |
3818 | switch (sc->udev->speed) { |
3819 | case USB_SPEED_LOW1: |
3820 | case USB_SPEED_FULL2: |
3821 | sc->ufps = 1000; |
3822 | sc->sync_pktsz = 3; |
3823 | sc->host_nframes = 50; |
3824 | break; |
3825 | case USB_SPEED_HIGH3: |
3826 | case USB_SPEED_SUPER4: |
3827 | sc->ufps = 8000; |
3828 | sc->sync_pktsz = 4; |
3829 | sc->host_nframes = 240; |
3830 | break; |
3831 | default: |
3832 | printf("%s: unsupported bus speed\n", DEVNAME(sc)((sc)->dev.dv_xname)); |
3833 | return; |
3834 | } |
3835 | |
3836 | if (!uaudio_process_conf(sc, &desc)) |
3837 | return; |
3838 | |
3839 | #ifdef UAUDIO_DEBUG |
3840 | if (uaudio_debug) |
3841 | uaudio_conf_print(sc); |
3842 | #endif |
3843 | /* print a nice uaudio attach line */ |
3844 | uaudio_print(sc); |
3845 | |
3846 | audio_attach_mi(&uaudio_hw_if, sc, arg->cookie, &sc->dev); |
3847 | } |
3848 | |
3849 | int |
3850 | uaudio_detach(struct device *self, int flags) |
3851 | { |
3852 | struct uaudio_softc *sc = (struct uaudio_softc *)self; |
3853 | struct uaudio_unit *unit; |
3854 | struct uaudio_params *params; |
3855 | struct uaudio_alt *alt; |
3856 | struct uaudio_name *name; |
3857 | struct uaudio_mixent *mixent; |
3858 | int rv; |
3859 | |
3860 | rv = config_detach_children(self, flags); |
3861 | |
3862 | usbd_ref_wait(sc->udev); |
3863 | |
3864 | while ((alt = sc->alts) != NULL((void *)0)) { |
3865 | sc->alts = alt->next; |
3866 | free(alt, M_USBDEV102, sizeof(struct uaudio_alt)); |
3867 | } |
3868 | |
3869 | while ((params = sc->params_list) != NULL((void *)0)) { |
3870 | sc->params_list = params->next; |
3871 | free(params, M_USBDEV102, sizeof(struct uaudio_params)); |
3872 | } |
3873 | |
3874 | while ((unit = sc->unit_list) != NULL((void *)0)) { |
3875 | sc->unit_list = unit->unit_next; |
3876 | while ((mixent = unit->mixent_list) != NULL((void *)0)) { |
3877 | unit->mixent_list = mixent->next; |
3878 | uaudio_ranges_clear(&mixent->ranges); |
3879 | free(mixent, M_USBDEV102, sizeof(struct uaudio_mixent)); |
3880 | } |
3881 | uaudio_ranges_clear(&unit->rates); |
3882 | free(unit, M_USBDEV102, sizeof(struct uaudio_unit)); |
3883 | } |
3884 | |
3885 | while ((name = sc->names)) { |
3886 | sc->names = name->next; |
3887 | free(name, M_USBDEV102, sizeof(struct uaudio_name)); |
3888 | } |
3889 | |
3890 | return rv; |
3891 | } |
3892 | |
3893 | int |
3894 | uaudio_open(void *self, int flags) |
3895 | { |
3896 | struct uaudio_softc *sc = self; |
3897 | struct uaudio_params *p; |
3898 | |
3899 | if (usbd_is_dying(sc->udev)) |
3900 | return EIO5; |
3901 | |
3902 | usbd_ref_incr(sc->udev); |
3903 | |
3904 | flags &= (FREAD0x0001 | FWRITE0x0002); |
3905 | |
3906 | for (p = sc->params_list; p != NULL((void *)0); p = p->next) { |
3907 | switch (flags) { |
3908 | case FWRITE0x0002: |
3909 | if (!p->palt) |
3910 | break; |
3911 | sc->mode = AUMODE_PLAY0x01; |
3912 | return 0; |
3913 | case FREAD0x0001: |
3914 | if (!p->ralt) |
3915 | break; |
3916 | sc->mode = AUMODE_RECORD0x02; |
3917 | return 0; |
3918 | case FREAD0x0001 | FWRITE0x0002: |
3919 | if (!(p->ralt && p->palt)) |
3920 | break; |
3921 | sc->mode = AUMODE_RECORD0x02 | AUMODE_PLAY0x01; |
3922 | return 0; |
3923 | } |
3924 | } |
3925 | |
3926 | usbd_ref_decr(sc->udev); |
3927 | return ENXIO6; |
3928 | } |
3929 | |
3930 | void |
3931 | uaudio_close(void *self) |
3932 | { |
3933 | struct uaudio_softc *sc = self; |
3934 | |
3935 | sc->mode = 0; |
3936 | usbd_ref_decr(sc->udev); |
3937 | } |
3938 | |
3939 | int |
3940 | uaudio_set_params(void *self, int setmode, int usemode, |
3941 | struct audio_params *ap, struct audio_params *ar) |
3942 | { |
3943 | struct uaudio_softc *sc = (struct uaudio_softc *)self; |
3944 | struct uaudio_params *p, *best_mode, *best_rate, *best_nch; |
3945 | int rate, rateindex; |
3946 | |
3947 | #ifdef DIAGNOSTIC1 |
3948 | if (setmode != usemode || setmode != sc->mode) { |
3949 | printf("%s: bad call to uaudio_set_params()\n", DEVNAME(sc)((sc)->dev.dv_xname)); |
3950 | return EINVAL22; |
3951 | } |
3952 | if (sc->mode == 0) { |
3953 | printf("%s: uaudio_set_params(): not open\n", DEVNAME(sc)((sc)->dev.dv_xname)); |
3954 | return EINVAL22; |
3955 | } |
3956 | #endif |
3957 | /* |
3958 | * audio(4) layer requests equal play and record rates |
3959 | */ |
3960 | rate = (sc->mode & AUMODE_PLAY0x01) ? ap->sample_rate : ar->sample_rate; |
3961 | rateindex = uaudio_rates_indexof(~0, rate); |
3962 | |
3963 | DPRINTF("%s: rate %d -> %d (index %d)\n", __func__,do {} while(0) |
3964 | rate, uaudio_rates[rateindex], rateindex)do {} while(0); |
3965 | |
3966 | best_mode = best_rate = best_nch = NULL((void *)0); |
3967 | |
3968 | for (p = sc->params_list; p != NULL((void *)0); p = p->next) { |
3969 | |
3970 | /* test if params match the requested mode */ |
3971 | if (sc->mode & AUMODE_PLAY0x01) { |
3972 | if (p->palt == NULL((void *)0)) |
3973 | continue; |
3974 | } |
3975 | if (sc->mode & AUMODE_RECORD0x02) { |
3976 | if (p->ralt == NULL((void *)0)) |
3977 | continue; |
3978 | } |
3979 | if (best_mode == NULL((void *)0)) |
3980 | best_mode = p; |
3981 | |
3982 | /* test if params match the requested rate */ |
3983 | if ((uaudio_getrates(sc, p) & (1 << rateindex)) == 0) |
3984 | continue; |
3985 | if (best_rate == NULL((void *)0)) |
3986 | best_rate = p; |
3987 | |
3988 | /* test if params match the requested channel counts */ |
3989 | if (sc->mode & AUMODE_PLAY0x01) { |
3990 | if (p->palt->nch != ap->channels) |
3991 | continue; |
3992 | } |
3993 | if (sc->mode & AUMODE_RECORD0x02) { |
3994 | if (p->ralt->nch != ar->channels) |
3995 | continue; |
3996 | } |
3997 | if (best_nch == NULL((void *)0)) |
3998 | best_nch = p; |
3999 | |
4000 | /* test if params match the requested precision */ |
4001 | if (sc->mode & AUMODE_PLAY0x01) { |
4002 | if (p->palt->bits != ap->precision) |
4003 | continue; |
4004 | } |
4005 | if (sc->mode & AUMODE_RECORD0x02) { |
4006 | if (p->ralt->bits != ar->precision) |
4007 | continue; |
4008 | } |
4009 | |
4010 | /* everything matched, we're done */ |
4011 | break; |
4012 | } |
4013 | |
4014 | if (p == NULL((void *)0)) { |
4015 | if (best_nch) |
4016 | p = best_nch; |
4017 | else if (best_rate) |
4018 | p = best_rate; |
4019 | else if (best_mode) |
4020 | p = best_mode; |
4021 | else |
4022 | return ENOTTY25; |
4023 | } |
4024 | |
4025 | /* |
4026 | * Recalculate rate index, because the chosen parameters |
4027 | * may not support the requested one |
4028 | */ |
4029 | rateindex = uaudio_rates_indexof(uaudio_getrates(sc, p), rate); |
4030 | if (rateindex < 0) |
4031 | return ENOTTY25; |
4032 | |
4033 | sc->params = p; |
4034 | sc->rate = uaudio_rates[rateindex]; |
4035 | |
4036 | DPRINTF("%s: rate = %u\n", __func__, sc->rate)do {} while(0); |
4037 | |
4038 | if (sc->mode & AUMODE_PLAY0x01) { |
4039 | ap->sample_rate = sc->rate; |
4040 | ap->precision = p->palt->bits; |
4041 | ap->encoding = AUDIO_ENCODING_SLINEAR_LE6; |
4042 | ap->bps = p->palt->bps; |
4043 | ap->msb = 1; |
4044 | ap->channels = p->palt->nch; |
4045 | } |
4046 | if (sc->mode & AUMODE_RECORD0x02) { |
4047 | ar->sample_rate = sc->rate; |
4048 | ar->precision = p->ralt->bits; |
4049 | ar->encoding = AUDIO_ENCODING_SLINEAR_LE6; |
4050 | ar->bps = p->ralt->bps; |
4051 | ar->msb = 1; |
4052 | ar->channels = p->ralt->nch; |
4053 | } |
4054 | |
4055 | return 0; |
4056 | } |
4057 | |
4058 | unsigned int |
4059 | uaudio_set_blksz(void *self, int mode, |
4060 | struct audio_params *p, struct audio_params *r, unsigned int blksz) |
4061 | { |
4062 | struct uaudio_softc *sc = self; |
4063 | unsigned int fps, fps_min; |
4064 | unsigned int blksz_max, blksz_min; |
4065 | |
4066 | /* |
4067 | * minimum block size is two transfers, see uaudio_stream_open() |
4068 | */ |
4069 | fps_min = sc->ufps; |
4070 | if (mode & AUMODE_PLAY0x01) { |
4071 | fps = sc->params->palt->fps; |
4072 | if (fps_min > fps) |
4073 | fps_min = fps; |
4074 | } |
4075 | if (mode & AUMODE_RECORD0x02) { |
4076 | fps = sc->params->ralt->fps; |
4077 | if (fps_min > fps) |
4078 | fps_min = fps; |
4079 | } |
4080 | blksz_min = (sc->rate * 2 + fps_min - 1) / fps_min; |
4081 | |
4082 | /* |
4083 | * max block size is only limited by the number of frames the |
4084 | * host can schedule |
4085 | */ |
4086 | blksz_max = sc->rate * (sc->host_nframes / UAUDIO_NXFERS_MIN2) / |
4087 | sc->ufps * 85 / 100; |
4088 | |
4089 | if (blksz > blksz_max) |
4090 | blksz = blksz_max; |
4091 | else if (blksz < blksz_min) |
4092 | blksz = blksz_min; |
4093 | |
4094 | return blksz; |
4095 | } |
4096 | |
4097 | int |
4098 | uaudio_trigger_output(void *self, void *start, void *end, int blksz, |
4099 | void (*intr)(void *), void *arg, struct audio_params *param) |
4100 | { |
4101 | struct uaudio_softc *sc = self; |
4102 | int err; |
4103 | |
4104 | err = uaudio_stream_open(sc, |
4105 | AUMODE_PLAY0x01, start, end, blksz, intr, arg); |
4106 | if (err) |
4107 | return err; |
4108 | |
4109 | sc->trigger_mode |= AUMODE_PLAY0x01; |
4110 | uaudio_trigger(sc); |
4111 | return 0; |
4112 | } |
4113 | |
4114 | int |
4115 | uaudio_trigger_input(void *self, void *start, void *end, int blksz, |
4116 | void (*intr)(void *), void *arg, struct audio_params *param) |
4117 | { |
4118 | struct uaudio_softc *sc = self; |
4119 | int err; |
4120 | |
4121 | err = uaudio_stream_open(sc, |
4122 | AUMODE_RECORD0x02, start, end, blksz, intr, arg); |
4123 | if (err) |
4124 | return err; |
4125 | |
4126 | sc->trigger_mode |= AUMODE_RECORD0x02; |
4127 | uaudio_trigger(sc); |
4128 | return 0; |
4129 | } |
4130 | |
4131 | void |
4132 | uaudio_copy_output(void *self, size_t todo) |
4133 | { |
4134 | struct uaudio_softc *sc = (struct uaudio_softc *)self; |
4135 | int s; |
4136 | |
4137 | s = splusb()splraise(0x2); |
4138 | sc->copy_todo += todo; |
4139 | |
4140 | #ifdef UAUDIO_DEBUG |
4141 | if (uaudio_debug >= 3) { |
4142 | printf("%s: copy_todo -> %zd (+%zd)\n", __func__, |
4143 | sc->copy_todo, todo); |
4144 | } |
4145 | #endif |
4146 | |
4147 | if (sc->mode == sc->trigger_mode) |
4148 | uaudio_pdata_copy(sc); |
4149 | splx(s)spllower(s); |
4150 | } |
4151 | |
4152 | void |
4153 | uaudio_underrun(void *self) |
4154 | { |
4155 | struct uaudio_softc *sc = (struct uaudio_softc *)self; |
4156 | struct uaudio_stream *s = &sc->pstream; |
4157 | |
4158 | sc->copy_todo += s->ring_blksz; |
4159 | |
4160 | #ifdef UAUDIO_DEBUG |
4161 | if (uaudio_debug >= 3) |
4162 | printf("%s: copy_todo -> %zd\n", __func__, sc->copy_todo); |
4163 | #endif |
4164 | |
4165 | /* copy data (actually silence) produced by the audio(4) layer */ |
4166 | uaudio_pdata_copy(sc); |
4167 | } |
4168 | |
4169 | int |
4170 | uaudio_halt_output(void *self) |
4171 | { |
4172 | struct uaudio_softc *sc = (struct uaudio_softc *)self; |
4173 | |
4174 | uaudio_stream_close(sc, AUMODE_PLAY0x01); |
4175 | sc->trigger_mode &= ~AUMODE_PLAY0x01; |
4176 | sc->copy_todo = 0; |
4177 | return 0; |
4178 | } |
4179 | |
4180 | int |
4181 | uaudio_halt_input(void *self) |
4182 | { |
4183 | struct uaudio_softc *sc = (struct uaudio_softc *)self; |
4184 | |
4185 | uaudio_stream_close(sc, AUMODE_RECORD0x02); |
4186 | sc->trigger_mode &= ~AUMODE_RECORD0x02; |
4187 | return 0; |
4188 | } |
4189 | |
4190 | int |
4191 | uaudio_get_port_do(struct uaudio_softc *sc, struct mixer_ctrl *ctl) |
4192 | { |
4193 | struct uaudio_unit *u; |
4194 | struct uaudio_mixent *m; |
4195 | unsigned char req_buf[4]; |
4196 | struct uaudio_blob p; |
4197 | int i, nch, val, req_num; |
4198 | |
4199 | if (!uaudio_mixer_byindex(sc, ctl->dev, &u, &m)) |
4200 | return ENOENT2; |
4201 | |
4202 | switch (sc->version) { |
4203 | case UAUDIO_V10x100: |
4204 | req_num = UAUDIO_V1_REQ_GET_CUR0x81; |
4205 | break; |
4206 | case UAUDIO_V20x200: |
4207 | req_num = UAUDIO_V2_REQ_CUR1; |
4208 | } |
4209 | |
4210 | switch (m->type) { |
4211 | case UAUDIO_MIX_SW0: |
4212 | p.rptr = p.wptr = req_buf; |
4213 | if (!uaudio_req(sc, |
4214 | UT_READ_CLASS_INTERFACE(0x80 | 0x20 | 0x01), |
4215 | req_num, |
4216 | m->req_sel, |
4217 | m->chan < 0 ? 0 : m->chan, |
4218 | sc->ctl_ifnum, |
4219 | u->id, |
4220 | req_buf, |
4221 | 1)) |
4222 | return EIO5; |
4223 | p.wptr++; |
4224 | if (!uaudio_getnum(&p, 1, &val)) |
4225 | return EIO5; |
4226 | ctl->un.ord = !!val; |
4227 | break; |
4228 | case UAUDIO_MIX_NUM1: |
4229 | nch = uaudio_mixer_nchan(m, NULL((void *)0)); |
4230 | ctl->un.value.num_channels = nch; |
4231 | for (i = 0; i < nch; i++) { |
4232 | p.rptr = p.wptr = req_buf; |
4233 | if (!uaudio_req(sc, |
4234 | UT_READ_CLASS_INTERFACE(0x80 | 0x20 | 0x01), |
4235 | req_num, |
4236 | m->req_sel, |
4237 | m->chan < 0 ? 0 : i + 1, |
4238 | sc->ctl_ifnum, |
4239 | u->id, |
4240 | req_buf, |
4241 | 2)) |
4242 | return EIO5; |
4243 | p.wptr += 2; |
4244 | if (!uaudio_getnum(&p, 2, &val)) |
4245 | return EIO5; |
4246 | ctl->un.value.level[i] = |
4247 | uaudio_ranges_decode(&m->ranges, |
4248 | uaudio_sign_expand(val, 2)); |
4249 | m = m->next; |
4250 | } |
4251 | break; |
4252 | case UAUDIO_MIX_ENUM2: |
4253 | /* XXX: not used yet */ |
4254 | break; |
4255 | } |
4256 | return 0; |
4257 | } |
4258 | |
4259 | int |
4260 | uaudio_set_port_do(struct uaudio_softc *sc, struct mixer_ctrl *ctl) |
4261 | { |
4262 | struct uaudio_unit *u; |
4263 | struct uaudio_mixent *m; |
4264 | unsigned char req_buf[4]; |
4265 | unsigned int val; |
4266 | int i, nch; |
4267 | |
4268 | if (!uaudio_mixer_byindex(sc, ctl->dev, &u, &m)) |
4269 | return ENOENT2; |
4270 | |
4271 | switch (m->type) { |
4272 | case UAUDIO_MIX_SW0: |
4273 | if (ctl->un.ord < 0 || ctl->un.ord > 1) |
4274 | return EINVAL22; |
4275 | req_buf[0] = ctl->un.ord; |
4276 | if (!uaudio_req(sc, |
4277 | UT_WRITE_CLASS_INTERFACE(0x00 | 0x20 | 0x01), |
4278 | UAUDIO_V1_REQ_SET_CUR0x01, |
4279 | m->req_sel, |
4280 | m->chan < 0 ? 0 : m->chan, |
4281 | sc->ctl_ifnum, |
4282 | u->id, |
4283 | req_buf, |
4284 | 1)) |
4285 | return EIO5; |
4286 | break; |
4287 | case UAUDIO_MIX_NUM1: |
4288 | nch = uaudio_mixer_nchan(m, NULL((void *)0)); |
4289 | ctl->un.value.num_channels = nch; |
4290 | for (i = 0; i < nch; i++) { |
4291 | val = uaudio_ranges_encode(&m->ranges, |
4292 | ctl->un.value.level[i]); |
4293 | DPRINTF("%s: ch %d, ctl %d, num val %d\n", __func__,do {} while(0) |
4294 | i, ctl->un.value.level[i], val)do {} while(0); |
4295 | req_buf[0] = val; |
4296 | req_buf[1] = val >> 8; |
4297 | if (!uaudio_req(sc, |
4298 | UT_WRITE_CLASS_INTERFACE(0x00 | 0x20 | 0x01), |
4299 | UAUDIO_V1_REQ_SET_CUR0x01, |
4300 | m->req_sel, |
4301 | m->chan < 0 ? 0 : i + 1, |
4302 | sc->ctl_ifnum, |
4303 | u->id, |
4304 | req_buf, |
4305 | 2)) |
4306 | return EIO5; |
4307 | m = m->next; |
4308 | } |
4309 | break; |
4310 | case UAUDIO_MIX_ENUM2: |
4311 | /* XXX: not used yet */ |
4312 | break; |
4313 | } |
4314 | return 0; |
4315 | } |
4316 | |
4317 | int |
4318 | uaudio_query_devinfo_do(struct uaudio_softc *sc, struct mixer_devinfo *devinfo) |
4319 | { |
4320 | struct uaudio_unit *u; |
4321 | struct uaudio_mixent *m; |
4322 | |
4323 | devinfo->next = -1; |
4324 | devinfo->prev = -1; |
4325 | switch (devinfo->index) { |
4326 | case UAUDIO_CLASS_IN1: |
4327 | strlcpy(devinfo->label.name, AudioCinputs"inputs", MAX_AUDIO_DEV_LEN16); |
4328 | devinfo->type = AUDIO_MIXER_CLASS0; |
4329 | devinfo->mixer_class = -1; |
4330 | return 0; |
4331 | case UAUDIO_CLASS_OUT0: |
4332 | strlcpy(devinfo->label.name, AudioCoutputs"outputs", MAX_AUDIO_DEV_LEN16); |
4333 | devinfo->type = AUDIO_MIXER_CLASS0; |
4334 | devinfo->mixer_class = -1; |
4335 | return 0; |
4336 | } |
4337 | |
4338 | /* |
4339 | * find the unit & mixent structure for the given index |
4340 | */ |
4341 | if (!uaudio_mixer_byindex(sc, devinfo->index, &u, &m)) |
4342 | return ENOENT2; |
4343 | |
4344 | if (strcmp(m->fname, "level") == 0) { |
4345 | /* |
4346 | * mixer(4) interface doesn't give a names to level |
4347 | * controls |
4348 | */ |
4349 | strlcpy(devinfo->label.name, u->name, MAX_AUDIO_DEV_LEN16); |
4350 | } else { |
4351 | if (m->chan == -1) { |
4352 | snprintf(devinfo->label.name, MAX_AUDIO_DEV_LEN16, |
4353 | "%s_%s", u->name, m->fname); |
4354 | } else { |
4355 | snprintf(devinfo->label.name, MAX_AUDIO_DEV_LEN16, |
4356 | "%s_%s%u", u->name, m->fname, m->chan); |
4357 | } |
4358 | } |
4359 | |
4360 | devinfo->mixer_class = u->mixer_class; |
4361 | switch (m->type) { |
4362 | case UAUDIO_MIX_SW0: |
4363 | devinfo->type = AUDIO_MIXER_ENUM1; |
4364 | devinfo->un.e.num_mem = 2; |
4365 | devinfo->un.e.member[0].ord = 0; |
4366 | strlcpy(devinfo->un.e.member[0].label.name, "off", |
4367 | MAX_AUDIO_DEV_LEN16); |
4368 | devinfo->un.e.member[1].ord = 1; |
4369 | strlcpy(devinfo->un.e.member[1].label.name, "on", |
4370 | MAX_AUDIO_DEV_LEN16); |
4371 | break; |
4372 | case UAUDIO_MIX_NUM1: |
4373 | devinfo->type = AUDIO_MIXER_VALUE3; |
4374 | devinfo->un.v.num_channels = uaudio_mixer_nchan(m, NULL((void *)0)); |
4375 | devinfo->un.v.delta = 1; |
4376 | break; |
4377 | case UAUDIO_MIX_ENUM2: |
4378 | /* XXX: not used yet */ |
4379 | devinfo->type = AUDIO_MIXER_ENUM1; |
4380 | devinfo->un.e.num_mem = 0; |
4381 | break; |
4382 | } |
4383 | return 0; |
4384 | } |
4385 | |
4386 | int |
4387 | uaudio_get_port(void *arg, struct mixer_ctrl *ctl) |
4388 | { |
4389 | struct uaudio_softc *sc = arg; |
4390 | int rc; |
4391 | |
4392 | usbd_ref_incr(sc->udev); |
4393 | rc = uaudio_get_port_do(sc, ctl); |
4394 | usbd_ref_decr(sc->udev); |
4395 | return rc; |
4396 | } |
4397 | |
4398 | int |
4399 | uaudio_set_port(void *arg, struct mixer_ctrl *ctl) |
4400 | { |
4401 | struct uaudio_softc *sc = arg; |
4402 | int rc; |
4403 | |
4404 | usbd_ref_incr(sc->udev); |
4405 | rc = uaudio_set_port_do(sc, ctl); |
4406 | usbd_ref_decr(sc->udev); |
4407 | return rc; |
4408 | } |
4409 | |
4410 | int |
4411 | uaudio_query_devinfo(void *arg, struct mixer_devinfo *devinfo) |
4412 | { |
4413 | struct uaudio_softc *sc = arg; |
4414 | int rc; |
4415 | |
4416 | usbd_ref_incr(sc->udev); |
4417 | rc = uaudio_query_devinfo_do(sc, devinfo); |
4418 | usbd_ref_decr(sc->udev); |
4419 | return rc; |
4420 | } |