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1da177e4 LT |
1 | /* |
2 | * (Tentative) USB Audio Driver for ALSA | |
3 | * | |
4 | * Mixer control part | |
5 | * | |
6 | * Copyright (c) 2002 by Takashi Iwai <tiwai@suse.de> | |
7 | * | |
8 | * Many codes borrowed from audio.c by | |
9 | * Alan Cox (alan@lxorguk.ukuu.org.uk) | |
10 | * Thomas Sailer (sailer@ife.ee.ethz.ch) | |
11 | * | |
12 | * | |
13 | * This program is free software; you can redistribute it and/or modify | |
14 | * it under the terms of the GNU General Public License as published by | |
15 | * the Free Software Foundation; either version 2 of the License, or | |
16 | * (at your option) any later version. | |
17 | * | |
18 | * This program is distributed in the hope that it will be useful, | |
19 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
20 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
21 | * GNU General Public License for more details. | |
22 | * | |
23 | * You should have received a copy of the GNU General Public License | |
24 | * along with this program; if not, write to the Free Software | |
25 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA | |
26 | * | |
27 | */ | |
28 | ||
29 | #include <sound/driver.h> | |
30 | #include <linux/bitops.h> | |
31 | #include <linux/init.h> | |
32 | #include <linux/list.h> | |
33 | #include <linux/slab.h> | |
34 | #include <linux/string.h> | |
35 | #include <linux/usb.h> | |
36 | #include <sound/core.h> | |
37 | #include <sound/control.h> | |
38 | ||
39 | #include "usbaudio.h" | |
40 | ||
41 | ||
42 | /* | |
43 | */ | |
44 | ||
45 | /* ignore error from controls - for debugging */ | |
46 | /* #define IGNORE_CTL_ERROR */ | |
47 | ||
48 | typedef struct usb_mixer_build mixer_build_t; | |
49 | typedef struct usb_audio_term usb_audio_term_t; | |
50 | typedef struct usb_mixer_elem_info usb_mixer_elem_info_t; | |
51 | ||
52 | ||
53 | struct usb_audio_term { | |
54 | int id; | |
55 | int type; | |
56 | int channels; | |
57 | unsigned int chconfig; | |
58 | int name; | |
59 | }; | |
60 | ||
61 | struct usbmix_name_map; | |
62 | ||
63 | struct usb_mixer_build { | |
64 | snd_usb_audio_t *chip; | |
65 | unsigned char *buffer; | |
66 | unsigned int buflen; | |
67 | unsigned int ctrlif; | |
68 | unsigned short vendor; | |
69 | unsigned short product; | |
707e6073 | 70 | DECLARE_BITMAP(unitbitmap, 256); |
1da177e4 LT |
71 | usb_audio_term_t oterm; |
72 | const struct usbmix_name_map *map; | |
8e062ec7 | 73 | const struct usbmix_selector_map *selector_map; |
1da177e4 LT |
74 | }; |
75 | ||
76 | struct usb_mixer_elem_info { | |
77 | snd_usb_audio_t *chip; | |
78 | unsigned int ctrlif; | |
79 | unsigned int id; | |
80 | unsigned int control; /* CS or ICN (high byte) */ | |
81 | unsigned int cmask; /* channel mask bitmap: 0 = master */ | |
82 | int channels; | |
83 | int val_type; | |
84 | int min, max, res; | |
85 | unsigned int initialized: 1; | |
86 | }; | |
87 | ||
88 | ||
89 | enum { | |
90 | USB_FEATURE_NONE = 0, | |
91 | USB_FEATURE_MUTE = 1, | |
92 | USB_FEATURE_VOLUME, | |
93 | USB_FEATURE_BASS, | |
94 | USB_FEATURE_MID, | |
95 | USB_FEATURE_TREBLE, | |
96 | USB_FEATURE_GEQ, | |
97 | USB_FEATURE_AGC, | |
98 | USB_FEATURE_DELAY, | |
99 | USB_FEATURE_BASSBOOST, | |
100 | USB_FEATURE_LOUDNESS | |
101 | }; | |
102 | ||
103 | enum { | |
104 | USB_MIXER_BOOLEAN, | |
105 | USB_MIXER_INV_BOOLEAN, | |
106 | USB_MIXER_S8, | |
107 | USB_MIXER_U8, | |
108 | USB_MIXER_S16, | |
109 | USB_MIXER_U16, | |
110 | }; | |
111 | ||
112 | enum { | |
113 | USB_PROC_UPDOWN = 1, | |
114 | USB_PROC_UPDOWN_SWITCH = 1, | |
115 | USB_PROC_UPDOWN_MODE_SEL = 2, | |
116 | ||
117 | USB_PROC_PROLOGIC = 2, | |
118 | USB_PROC_PROLOGIC_SWITCH = 1, | |
119 | USB_PROC_PROLOGIC_MODE_SEL = 2, | |
120 | ||
121 | USB_PROC_3DENH = 3, | |
122 | USB_PROC_3DENH_SWITCH = 1, | |
123 | USB_PROC_3DENH_SPACE = 2, | |
124 | ||
125 | USB_PROC_REVERB = 4, | |
126 | USB_PROC_REVERB_SWITCH = 1, | |
127 | USB_PROC_REVERB_LEVEL = 2, | |
128 | USB_PROC_REVERB_TIME = 3, | |
129 | USB_PROC_REVERB_DELAY = 4, | |
130 | ||
131 | USB_PROC_CHORUS = 5, | |
132 | USB_PROC_CHORUS_SWITCH = 1, | |
133 | USB_PROC_CHORUS_LEVEL = 2, | |
134 | USB_PROC_CHORUS_RATE = 3, | |
135 | USB_PROC_CHORUS_DEPTH = 4, | |
136 | ||
137 | USB_PROC_DCR = 6, | |
138 | USB_PROC_DCR_SWITCH = 1, | |
139 | USB_PROC_DCR_RATIO = 2, | |
140 | USB_PROC_DCR_MAX_AMP = 3, | |
141 | USB_PROC_DCR_THRESHOLD = 4, | |
142 | USB_PROC_DCR_ATTACK = 5, | |
143 | USB_PROC_DCR_RELEASE = 6, | |
144 | }; | |
145 | ||
146 | #define MAX_CHANNELS 10 /* max logical channels */ | |
147 | ||
148 | ||
149 | /* | |
150 | * manual mapping of mixer names | |
151 | * if the mixer topology is too complicated and the parsed names are | |
152 | * ambiguous, add the entries in usbmixer_maps.c. | |
153 | */ | |
154 | #include "usbmixer_maps.c" | |
155 | ||
156 | /* get the mapped name if the unit matches */ | |
157 | static int check_mapped_name(mixer_build_t *state, int unitid, int control, char *buf, int buflen) | |
158 | { | |
159 | const struct usbmix_name_map *p; | |
160 | ||
161 | if (! state->map) | |
162 | return 0; | |
163 | ||
164 | for (p = state->map; p->id; p++) { | |
165 | if (p->id == unitid && p->name && | |
166 | (! control || ! p->control || control == p->control)) { | |
167 | buflen--; | |
168 | return strlcpy(buf, p->name, buflen); | |
169 | } | |
170 | } | |
171 | return 0; | |
172 | } | |
173 | ||
174 | /* check whether the control should be ignored */ | |
175 | static int check_ignored_ctl(mixer_build_t *state, int unitid, int control) | |
176 | { | |
177 | const struct usbmix_name_map *p; | |
178 | ||
179 | if (! state->map) | |
180 | return 0; | |
181 | for (p = state->map; p->id; p++) { | |
182 | if (p->id == unitid && ! p->name && | |
183 | (! control || ! p->control || control == p->control)) { | |
184 | // printk("ignored control %d:%d\n", unitid, control); | |
185 | return 1; | |
186 | } | |
187 | } | |
188 | return 0; | |
189 | } | |
190 | ||
8e062ec7 CL |
191 | /* get the mapped selector source name */ |
192 | static int check_mapped_selector_name(mixer_build_t *state, int unitid, | |
193 | int index, char *buf, int buflen) | |
194 | { | |
195 | const struct usbmix_selector_map *p; | |
196 | ||
197 | if (! state->selector_map) | |
198 | return 0; | |
199 | for (p = state->selector_map; p->id; p++) { | |
200 | if (p->id == unitid && index < p->count) | |
201 | return strlcpy(buf, p->names[index], buflen); | |
202 | } | |
203 | return 0; | |
204 | } | |
205 | ||
1da177e4 LT |
206 | /* |
207 | * find an audio control unit with the given unit id | |
208 | */ | |
209 | static void *find_audio_control_unit(mixer_build_t *state, unsigned char unit) | |
210 | { | |
211 | unsigned char *p; | |
212 | ||
213 | p = NULL; | |
214 | while ((p = snd_usb_find_desc(state->buffer, state->buflen, p, | |
215 | USB_DT_CS_INTERFACE)) != NULL) { | |
216 | if (p[0] >= 4 && p[2] >= INPUT_TERMINAL && p[2] <= EXTENSION_UNIT && p[3] == unit) | |
217 | return p; | |
218 | } | |
219 | return NULL; | |
220 | } | |
221 | ||
222 | ||
223 | /* | |
224 | * copy a string with the given id | |
225 | */ | |
226 | static int snd_usb_copy_string_desc(mixer_build_t *state, int index, char *buf, int maxlen) | |
227 | { | |
228 | int len = usb_string(state->chip->dev, index, buf, maxlen - 1); | |
229 | buf[len] = 0; | |
230 | return len; | |
231 | } | |
232 | ||
233 | /* | |
234 | * convert from the byte/word on usb descriptor to the zero-based integer | |
235 | */ | |
236 | static int convert_signed_value(usb_mixer_elem_info_t *cval, int val) | |
237 | { | |
238 | switch (cval->val_type) { | |
239 | case USB_MIXER_BOOLEAN: | |
240 | return !!val; | |
241 | case USB_MIXER_INV_BOOLEAN: | |
242 | return !val; | |
243 | case USB_MIXER_U8: | |
244 | val &= 0xff; | |
245 | break; | |
246 | case USB_MIXER_S8: | |
247 | val &= 0xff; | |
248 | if (val >= 0x80) | |
249 | val -= 0x100; | |
250 | break; | |
251 | case USB_MIXER_U16: | |
252 | val &= 0xffff; | |
253 | break; | |
254 | case USB_MIXER_S16: | |
255 | val &= 0xffff; | |
256 | if (val >= 0x8000) | |
257 | val -= 0x10000; | |
258 | break; | |
259 | } | |
260 | return val; | |
261 | } | |
262 | ||
263 | /* | |
264 | * convert from the zero-based int to the byte/word for usb descriptor | |
265 | */ | |
266 | static int convert_bytes_value(usb_mixer_elem_info_t *cval, int val) | |
267 | { | |
268 | switch (cval->val_type) { | |
269 | case USB_MIXER_BOOLEAN: | |
270 | return !!val; | |
271 | case USB_MIXER_INV_BOOLEAN: | |
272 | return !val; | |
273 | case USB_MIXER_S8: | |
274 | case USB_MIXER_U8: | |
275 | return val & 0xff; | |
276 | case USB_MIXER_S16: | |
277 | case USB_MIXER_U16: | |
278 | return val & 0xffff; | |
279 | } | |
280 | return 0; /* not reached */ | |
281 | } | |
282 | ||
283 | static int get_relative_value(usb_mixer_elem_info_t *cval, int val) | |
284 | { | |
285 | if (! cval->res) | |
286 | cval->res = 1; | |
287 | if (val < cval->min) | |
288 | return 0; | |
289 | else if (val > cval->max) | |
290 | return (cval->max - cval->min) / cval->res; | |
291 | else | |
292 | return (val - cval->min) / cval->res; | |
293 | } | |
294 | ||
295 | static int get_abs_value(usb_mixer_elem_info_t *cval, int val) | |
296 | { | |
297 | if (val < 0) | |
298 | return cval->min; | |
299 | if (! cval->res) | |
300 | cval->res = 1; | |
301 | val *= cval->res; | |
302 | val += cval->min; | |
303 | if (val > cval->max) | |
304 | return cval->max; | |
305 | return val; | |
306 | } | |
307 | ||
308 | ||
309 | /* | |
310 | * retrieve a mixer value | |
311 | */ | |
312 | ||
313 | static int get_ctl_value(usb_mixer_elem_info_t *cval, int request, int validx, int *value_ret) | |
314 | { | |
315 | unsigned char buf[2]; | |
316 | int val_len = cval->val_type >= USB_MIXER_S16 ? 2 : 1; | |
317 | int timeout = 10; | |
318 | ||
319 | while (timeout-- > 0) { | |
320 | if (snd_usb_ctl_msg(cval->chip->dev, usb_rcvctrlpipe(cval->chip->dev, 0), | |
321 | request, | |
322 | USB_RECIP_INTERFACE | USB_TYPE_CLASS | USB_DIR_IN, | |
323 | validx, cval->ctrlif | (cval->id << 8), | |
324 | buf, val_len, 100) >= 0) { | |
325 | *value_ret = convert_signed_value(cval, snd_usb_combine_bytes(buf, val_len)); | |
326 | return 0; | |
327 | } | |
328 | } | |
329 | snd_printdd(KERN_ERR "cannot get ctl value: req = 0x%x, wValue = 0x%x, wIndex = 0x%x, type = %d\n", request, validx, cval->ctrlif | (cval->id << 8), cval->val_type); | |
330 | return -EINVAL; | |
331 | } | |
332 | ||
333 | static int get_cur_ctl_value(usb_mixer_elem_info_t *cval, int validx, int *value) | |
334 | { | |
335 | return get_ctl_value(cval, GET_CUR, validx, value); | |
336 | } | |
337 | ||
338 | /* channel = 0: master, 1 = first channel */ | |
339 | inline static int get_cur_mix_value(usb_mixer_elem_info_t *cval, int channel, int *value) | |
340 | { | |
341 | return get_ctl_value(cval, GET_CUR, (cval->control << 8) | channel, value); | |
342 | } | |
343 | ||
344 | /* | |
345 | * set a mixer value | |
346 | */ | |
347 | ||
348 | static int set_ctl_value(usb_mixer_elem_info_t *cval, int request, int validx, int value_set) | |
349 | { | |
350 | unsigned char buf[2]; | |
351 | int val_len = cval->val_type >= USB_MIXER_S16 ? 2 : 1; | |
352 | int timeout = 10; | |
353 | ||
354 | value_set = convert_bytes_value(cval, value_set); | |
355 | buf[0] = value_set & 0xff; | |
356 | buf[1] = (value_set >> 8) & 0xff; | |
357 | while (timeout -- > 0) | |
358 | if (snd_usb_ctl_msg(cval->chip->dev, usb_sndctrlpipe(cval->chip->dev, 0), | |
359 | request, | |
360 | USB_RECIP_INTERFACE | USB_TYPE_CLASS | USB_DIR_OUT, | |
361 | validx, cval->ctrlif | (cval->id << 8), | |
362 | buf, val_len, 100) >= 0) | |
363 | return 0; | |
364 | snd_printdd(KERN_ERR "cannot set ctl value: req = 0x%x, wValue = 0x%x, wIndex = 0x%x, type = %d, data = 0x%x/0x%x\n", request, validx, cval->ctrlif | (cval->id << 8), cval->val_type, buf[0], buf[1]); | |
365 | return -EINVAL; | |
366 | } | |
367 | ||
368 | static int set_cur_ctl_value(usb_mixer_elem_info_t *cval, int validx, int value) | |
369 | { | |
370 | return set_ctl_value(cval, SET_CUR, validx, value); | |
371 | } | |
372 | ||
373 | inline static int set_cur_mix_value(usb_mixer_elem_info_t *cval, int channel, int value) | |
374 | { | |
375 | return set_ctl_value(cval, SET_CUR, (cval->control << 8) | channel, value); | |
376 | } | |
377 | ||
378 | ||
379 | /* | |
380 | * parser routines begin here... | |
381 | */ | |
382 | ||
383 | static int parse_audio_unit(mixer_build_t *state, int unitid); | |
384 | ||
385 | ||
386 | /* | |
387 | * check if the input/output channel routing is enabled on the given bitmap. | |
388 | * used for mixer unit parser | |
389 | */ | |
390 | static int check_matrix_bitmap(unsigned char *bmap, int ich, int och, int num_outs) | |
391 | { | |
392 | int idx = ich * num_outs + och; | |
393 | return bmap[idx >> 3] & (0x80 >> (idx & 7)); | |
394 | } | |
395 | ||
396 | ||
397 | /* | |
398 | * add an alsa control element | |
399 | * search and increment the index until an empty slot is found. | |
400 | * | |
401 | * if failed, give up and free the control instance. | |
402 | */ | |
403 | ||
404 | static int add_control_to_empty(snd_card_t *card, snd_kcontrol_t *kctl) | |
405 | { | |
406 | int err; | |
407 | while (snd_ctl_find_id(card, &kctl->id)) | |
408 | kctl->id.index++; | |
409 | if ((err = snd_ctl_add(card, kctl)) < 0) { | |
410 | snd_printd(KERN_ERR "cannot add control (err = %d)\n", err); | |
411 | snd_ctl_free_one(kctl); | |
412 | } | |
413 | return err; | |
414 | } | |
415 | ||
416 | ||
417 | /* | |
418 | * get a terminal name string | |
419 | */ | |
420 | ||
421 | static struct iterm_name_combo { | |
422 | int type; | |
423 | char *name; | |
424 | } iterm_names[] = { | |
425 | { 0x0300, "Output" }, | |
426 | { 0x0301, "Speaker" }, | |
427 | { 0x0302, "Headphone" }, | |
428 | { 0x0303, "HMD Audio" }, | |
429 | { 0x0304, "Desktop Speaker" }, | |
430 | { 0x0305, "Room Speaker" }, | |
431 | { 0x0306, "Com Speaker" }, | |
432 | { 0x0307, "LFE" }, | |
433 | { 0x0600, "External In" }, | |
434 | { 0x0601, "Analog In" }, | |
435 | { 0x0602, "Digital In" }, | |
436 | { 0x0603, "Line" }, | |
437 | { 0x0604, "Legacy In" }, | |
438 | { 0x0605, "IEC958 In" }, | |
439 | { 0x0606, "1394 DA Stream" }, | |
440 | { 0x0607, "1394 DV Stream" }, | |
441 | { 0x0700, "Embedded" }, | |
442 | { 0x0701, "Noise Source" }, | |
443 | { 0x0702, "Equalization Noise" }, | |
444 | { 0x0703, "CD" }, | |
445 | { 0x0704, "DAT" }, | |
446 | { 0x0705, "DCC" }, | |
447 | { 0x0706, "MiniDisk" }, | |
448 | { 0x0707, "Analog Tape" }, | |
449 | { 0x0708, "Phonograph" }, | |
450 | { 0x0709, "VCR Audio" }, | |
451 | { 0x070a, "Video Disk Audio" }, | |
452 | { 0x070b, "DVD Audio" }, | |
453 | { 0x070c, "TV Tuner Audio" }, | |
454 | { 0x070d, "Satellite Rec Audio" }, | |
455 | { 0x070e, "Cable Tuner Audio" }, | |
456 | { 0x070f, "DSS Audio" }, | |
457 | { 0x0710, "Radio Receiver" }, | |
458 | { 0x0711, "Radio Transmitter" }, | |
459 | { 0x0712, "Multi-Track Recorder" }, | |
460 | { 0x0713, "Synthesizer" }, | |
461 | { 0 }, | |
462 | }; | |
463 | ||
464 | static int get_term_name(mixer_build_t *state, usb_audio_term_t *iterm, | |
465 | unsigned char *name, int maxlen, int term_only) | |
466 | { | |
467 | struct iterm_name_combo *names; | |
468 | ||
469 | if (iterm->name) | |
470 | return snd_usb_copy_string_desc(state, iterm->name, name, maxlen); | |
471 | ||
472 | /* virtual type - not a real terminal */ | |
473 | if (iterm->type >> 16) { | |
474 | if (term_only) | |
475 | return 0; | |
476 | switch (iterm->type >> 16) { | |
477 | case SELECTOR_UNIT: | |
478 | strcpy(name, "Selector"); return 8; | |
479 | case PROCESSING_UNIT: | |
480 | strcpy(name, "Process Unit"); return 12; | |
481 | case EXTENSION_UNIT: | |
482 | strcpy(name, "Ext Unit"); return 8; | |
483 | case MIXER_UNIT: | |
484 | strcpy(name, "Mixer"); return 5; | |
485 | default: | |
486 | return sprintf(name, "Unit %d", iterm->id); | |
487 | } | |
488 | } | |
489 | ||
490 | switch (iterm->type & 0xff00) { | |
491 | case 0x0100: | |
492 | strcpy(name, "PCM"); return 3; | |
493 | case 0x0200: | |
494 | strcpy(name, "Mic"); return 3; | |
495 | case 0x0400: | |
496 | strcpy(name, "Headset"); return 7; | |
497 | case 0x0500: | |
498 | strcpy(name, "Phone"); return 5; | |
499 | } | |
500 | ||
501 | for (names = iterm_names; names->type; names++) | |
502 | if (names->type == iterm->type) { | |
503 | strcpy(name, names->name); | |
504 | return strlen(names->name); | |
505 | } | |
506 | return 0; | |
507 | } | |
508 | ||
509 | ||
510 | /* | |
511 | * parse the source unit recursively until it reaches to a terminal | |
512 | * or a branched unit. | |
513 | */ | |
514 | static int check_input_term(mixer_build_t *state, int id, usb_audio_term_t *term) | |
515 | { | |
516 | unsigned char *p1; | |
517 | ||
518 | memset(term, 0, sizeof(*term)); | |
519 | while ((p1 = find_audio_control_unit(state, id)) != NULL) { | |
520 | term->id = id; | |
521 | switch (p1[2]) { | |
522 | case INPUT_TERMINAL: | |
523 | term->type = combine_word(p1 + 4); | |
524 | term->channels = p1[7]; | |
525 | term->chconfig = combine_word(p1 + 8); | |
526 | term->name = p1[11]; | |
527 | return 0; | |
528 | case FEATURE_UNIT: | |
529 | id = p1[4]; | |
530 | break; /* continue to parse */ | |
531 | case MIXER_UNIT: | |
532 | term->type = p1[2] << 16; /* virtual type */ | |
533 | term->channels = p1[5 + p1[4]]; | |
534 | term->chconfig = combine_word(p1 + 6 + p1[4]); | |
535 | term->name = p1[p1[0] - 1]; | |
536 | return 0; | |
537 | case SELECTOR_UNIT: | |
538 | /* call recursively to retrieve the channel info */ | |
539 | if (check_input_term(state, p1[5], term) < 0) | |
540 | return -ENODEV; | |
541 | term->type = p1[2] << 16; /* virtual type */ | |
542 | term->id = id; | |
543 | term->name = p1[9 + p1[0] - 1]; | |
544 | return 0; | |
545 | case PROCESSING_UNIT: | |
546 | case EXTENSION_UNIT: | |
547 | if (p1[6] == 1) { | |
548 | id = p1[7]; | |
549 | break; /* continue to parse */ | |
550 | } | |
551 | term->type = p1[2] << 16; /* virtual type */ | |
552 | term->channels = p1[7 + p1[6]]; | |
553 | term->chconfig = combine_word(p1 + 8 + p1[6]); | |
554 | term->name = p1[12 + p1[6] + p1[11 + p1[6]]]; | |
555 | return 0; | |
556 | default: | |
557 | return -ENODEV; | |
558 | } | |
559 | } | |
560 | return -ENODEV; | |
561 | } | |
562 | ||
563 | ||
564 | /* | |
565 | * Feature Unit | |
566 | */ | |
567 | ||
568 | /* feature unit control information */ | |
569 | struct usb_feature_control_info { | |
570 | const char *name; | |
571 | unsigned int type; /* control type (mute, volume, etc.) */ | |
572 | }; | |
573 | ||
574 | static struct usb_feature_control_info audio_feature_info[] = { | |
575 | { "Mute", USB_MIXER_INV_BOOLEAN }, | |
576 | { "Volume", USB_MIXER_S16 }, | |
577 | { "Tone Control - Bass", USB_MIXER_S8 }, | |
578 | { "Tone Control - Mid", USB_MIXER_S8 }, | |
579 | { "Tone Control - Treble", USB_MIXER_S8 }, | |
580 | { "Graphic Equalizer", USB_MIXER_S8 }, /* FIXME: not implemeted yet */ | |
581 | { "Auto Gain Control", USB_MIXER_BOOLEAN }, | |
582 | { "Delay Control", USB_MIXER_U16 }, | |
583 | { "Bass Boost", USB_MIXER_BOOLEAN }, | |
584 | { "Loudness", USB_MIXER_BOOLEAN }, | |
585 | }; | |
586 | ||
587 | ||
588 | /* private_free callback */ | |
589 | static void usb_mixer_elem_free(snd_kcontrol_t *kctl) | |
590 | { | |
591 | if (kctl->private_data) { | |
592 | kfree(kctl->private_data); | |
593 | kctl->private_data = NULL; | |
594 | } | |
595 | } | |
596 | ||
597 | ||
598 | /* | |
599 | * interface to ALSA control for feature/mixer units | |
600 | */ | |
601 | ||
602 | /* | |
603 | * retrieve the minimum and maximum values for the specified control | |
604 | */ | |
605 | static int get_min_max(usb_mixer_elem_info_t *cval, int default_min) | |
606 | { | |
607 | /* for failsafe */ | |
608 | cval->min = default_min; | |
609 | cval->max = cval->min + 1; | |
610 | cval->res = 1; | |
611 | ||
612 | if (cval->val_type == USB_MIXER_BOOLEAN || | |
613 | cval->val_type == USB_MIXER_INV_BOOLEAN) { | |
614 | cval->initialized = 1; | |
615 | } else { | |
616 | int minchn = 0; | |
617 | if (cval->cmask) { | |
618 | int i; | |
619 | for (i = 0; i < MAX_CHANNELS; i++) | |
620 | if (cval->cmask & (1 << i)) { | |
621 | minchn = i + 1; | |
622 | break; | |
623 | } | |
624 | } | |
625 | if (get_ctl_value(cval, GET_MAX, (cval->control << 8) | minchn, &cval->max) < 0 || | |
626 | get_ctl_value(cval, GET_MIN, (cval->control << 8) | minchn, &cval->min) < 0) { | |
627 | snd_printd(KERN_ERR "%d:%d: cannot get min/max values for control %d (id %d)\n", cval->id, cval->ctrlif, cval->control, cval->id); | |
628 | return -EINVAL; | |
629 | } | |
630 | if (get_ctl_value(cval, GET_RES, (cval->control << 8) | minchn, &cval->res) < 0) { | |
631 | cval->res = 1; | |
632 | } else { | |
633 | int last_valid_res = cval->res; | |
634 | ||
635 | while (cval->res > 1) { | |
636 | if (set_ctl_value(cval, SET_RES, (cval->control << 8) | minchn, cval->res / 2) < 0) | |
637 | break; | |
638 | cval->res /= 2; | |
639 | } | |
640 | if (get_ctl_value(cval, GET_RES, (cval->control << 8) | minchn, &cval->res) < 0) | |
641 | cval->res = last_valid_res; | |
642 | } | |
643 | if (cval->res == 0) | |
644 | cval->res = 1; | |
645 | cval->initialized = 1; | |
646 | } | |
647 | return 0; | |
648 | } | |
649 | ||
650 | ||
651 | /* get a feature/mixer unit info */ | |
652 | static int mixer_ctl_feature_info(snd_kcontrol_t *kcontrol, snd_ctl_elem_info_t *uinfo) | |
653 | { | |
654 | usb_mixer_elem_info_t *cval = kcontrol->private_data; | |
655 | ||
656 | if (cval->val_type == USB_MIXER_BOOLEAN || | |
657 | cval->val_type == USB_MIXER_INV_BOOLEAN) | |
658 | uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN; | |
659 | else | |
660 | uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER; | |
661 | uinfo->count = cval->channels; | |
662 | if (cval->val_type == USB_MIXER_BOOLEAN || | |
663 | cval->val_type == USB_MIXER_INV_BOOLEAN) { | |
664 | uinfo->value.integer.min = 0; | |
665 | uinfo->value.integer.max = 1; | |
666 | } else { | |
667 | if (! cval->initialized) | |
668 | get_min_max(cval, 0); | |
669 | uinfo->value.integer.min = 0; | |
670 | uinfo->value.integer.max = (cval->max - cval->min) / cval->res; | |
671 | } | |
672 | return 0; | |
673 | } | |
674 | ||
675 | /* get the current value from feature/mixer unit */ | |
676 | static int mixer_ctl_feature_get(snd_kcontrol_t *kcontrol, snd_ctl_elem_value_t *ucontrol) | |
677 | { | |
678 | usb_mixer_elem_info_t *cval = kcontrol->private_data; | |
679 | int c, cnt, val, err; | |
680 | ||
681 | if (cval->cmask) { | |
682 | cnt = 0; | |
683 | for (c = 0; c < MAX_CHANNELS; c++) { | |
684 | if (cval->cmask & (1 << c)) { | |
685 | err = get_cur_mix_value(cval, c + 1, &val); | |
686 | if (err < 0) { | |
687 | if (cval->chip->ignore_ctl_error) { | |
688 | ucontrol->value.integer.value[0] = cval->min; | |
689 | return 0; | |
690 | } | |
691 | snd_printd(KERN_ERR "cannot get current value for control %d ch %d: err = %d\n", cval->control, c + 1, err); | |
692 | return err; | |
693 | } | |
694 | val = get_relative_value(cval, val); | |
695 | ucontrol->value.integer.value[cnt] = val; | |
696 | cnt++; | |
697 | } | |
698 | } | |
699 | } else { | |
700 | /* master channel */ | |
701 | err = get_cur_mix_value(cval, 0, &val); | |
702 | if (err < 0) { | |
703 | if (cval->chip->ignore_ctl_error) { | |
704 | ucontrol->value.integer.value[0] = cval->min; | |
705 | return 0; | |
706 | } | |
707 | snd_printd(KERN_ERR "cannot get current value for control %d master ch: err = %d\n", cval->control, err); | |
708 | return err; | |
709 | } | |
710 | val = get_relative_value(cval, val); | |
711 | ucontrol->value.integer.value[0] = val; | |
712 | } | |
713 | return 0; | |
714 | } | |
715 | ||
716 | /* put the current value to feature/mixer unit */ | |
717 | static int mixer_ctl_feature_put(snd_kcontrol_t *kcontrol, snd_ctl_elem_value_t *ucontrol) | |
718 | { | |
719 | usb_mixer_elem_info_t *cval = kcontrol->private_data; | |
720 | int c, cnt, val, oval, err; | |
721 | int changed = 0; | |
722 | ||
723 | if (cval->cmask) { | |
724 | cnt = 0; | |
725 | for (c = 0; c < MAX_CHANNELS; c++) { | |
726 | if (cval->cmask & (1 << c)) { | |
727 | err = get_cur_mix_value(cval, c + 1, &oval); | |
728 | if (err < 0) { | |
729 | if (cval->chip->ignore_ctl_error) | |
730 | return 0; | |
731 | return err; | |
732 | } | |
733 | val = ucontrol->value.integer.value[cnt]; | |
734 | val = get_abs_value(cval, val); | |
735 | if (oval != val) { | |
736 | set_cur_mix_value(cval, c + 1, val); | |
737 | changed = 1; | |
738 | } | |
739 | get_cur_mix_value(cval, c + 1, &val); | |
740 | cnt++; | |
741 | } | |
742 | } | |
743 | } else { | |
744 | /* master channel */ | |
745 | err = get_cur_mix_value(cval, 0, &oval); | |
746 | if (err < 0 && cval->chip->ignore_ctl_error) | |
747 | return 0; | |
748 | if (err < 0) | |
749 | return err; | |
750 | val = ucontrol->value.integer.value[0]; | |
751 | val = get_abs_value(cval, val); | |
752 | if (val != oval) { | |
753 | set_cur_mix_value(cval, 0, val); | |
754 | changed = 1; | |
755 | } | |
756 | } | |
757 | return changed; | |
758 | } | |
759 | ||
760 | static snd_kcontrol_new_t usb_feature_unit_ctl = { | |
761 | .iface = SNDRV_CTL_ELEM_IFACE_MIXER, | |
762 | .name = "", /* will be filled later manually */ | |
763 | .info = mixer_ctl_feature_info, | |
764 | .get = mixer_ctl_feature_get, | |
765 | .put = mixer_ctl_feature_put, | |
766 | }; | |
767 | ||
768 | ||
769 | /* | |
770 | * build a feature control | |
771 | */ | |
772 | ||
773 | static void build_feature_ctl(mixer_build_t *state, unsigned char *desc, | |
774 | unsigned int ctl_mask, int control, | |
775 | usb_audio_term_t *iterm, int unitid) | |
776 | { | |
777 | unsigned int len = 0; | |
778 | int mapped_name = 0; | |
779 | int nameid = desc[desc[0] - 1]; | |
780 | snd_kcontrol_t *kctl; | |
781 | usb_mixer_elem_info_t *cval; | |
782 | ||
783 | control++; /* change from zero-based to 1-based value */ | |
784 | ||
785 | if (control == USB_FEATURE_GEQ) { | |
786 | /* FIXME: not supported yet */ | |
787 | return; | |
788 | } | |
789 | ||
790 | if (check_ignored_ctl(state, unitid, control)) | |
791 | return; | |
792 | ||
793 | cval = kcalloc(1, sizeof(*cval), GFP_KERNEL); | |
794 | if (! cval) { | |
795 | snd_printk(KERN_ERR "cannot malloc kcontrol\n"); | |
796 | return; | |
797 | } | |
798 | cval->chip = state->chip; | |
799 | cval->ctrlif = state->ctrlif; | |
800 | cval->id = unitid; | |
801 | cval->control = control; | |
802 | cval->cmask = ctl_mask; | |
803 | cval->val_type = audio_feature_info[control-1].type; | |
804 | if (ctl_mask == 0) | |
805 | cval->channels = 1; /* master channel */ | |
806 | else { | |
807 | int i, c = 0; | |
808 | for (i = 0; i < 16; i++) | |
809 | if (ctl_mask & (1 << i)) | |
810 | c++; | |
811 | cval->channels = c; | |
812 | } | |
813 | ||
814 | /* get min/max values */ | |
815 | get_min_max(cval, 0); | |
816 | ||
817 | kctl = snd_ctl_new1(&usb_feature_unit_ctl, cval); | |
818 | if (! kctl) { | |
819 | snd_printk(KERN_ERR "cannot malloc kcontrol\n"); | |
820 | kfree(cval); | |
821 | return; | |
822 | } | |
823 | kctl->private_free = usb_mixer_elem_free; | |
824 | ||
825 | len = check_mapped_name(state, unitid, control, kctl->id.name, sizeof(kctl->id.name)); | |
826 | mapped_name = len != 0; | |
827 | if (! len && nameid) | |
828 | len = snd_usb_copy_string_desc(state, nameid, kctl->id.name, sizeof(kctl->id.name)); | |
829 | ||
830 | switch (control) { | |
831 | case USB_FEATURE_MUTE: | |
832 | case USB_FEATURE_VOLUME: | |
833 | /* determine the control name. the rule is: | |
834 | * - if a name id is given in descriptor, use it. | |
835 | * - if the connected input can be determined, then use the name | |
836 | * of terminal type. | |
837 | * - if the connected output can be determined, use it. | |
838 | * - otherwise, anonymous name. | |
839 | */ | |
840 | if (! len) { | |
841 | len = get_term_name(state, iterm, kctl->id.name, sizeof(kctl->id.name), 1); | |
842 | if (! len) | |
843 | len = get_term_name(state, &state->oterm, kctl->id.name, sizeof(kctl->id.name), 1); | |
844 | if (! len) | |
845 | len = snprintf(kctl->id.name, sizeof(kctl->id.name), | |
846 | "Feature %d", unitid); | |
847 | } | |
848 | /* determine the stream direction: | |
849 | * if the connected output is USB stream, then it's likely a | |
850 | * capture stream. otherwise it should be playback (hopefully :) | |
851 | */ | |
852 | if (! mapped_name && ! (state->oterm.type >> 16)) { | |
853 | if ((state->oterm.type & 0xff00) == 0x0100) { | |
854 | len = strlcat(kctl->id.name, " Capture", sizeof(kctl->id.name)); | |
855 | } else { | |
856 | len = strlcat(kctl->id.name + len, " Playback", sizeof(kctl->id.name)); | |
857 | } | |
858 | } | |
859 | strlcat(kctl->id.name + len, control == USB_FEATURE_MUTE ? " Switch" : " Volume", | |
860 | sizeof(kctl->id.name)); | |
861 | break; | |
862 | ||
863 | default: | |
864 | if (! len) | |
865 | strlcpy(kctl->id.name, audio_feature_info[control-1].name, | |
866 | sizeof(kctl->id.name)); | |
867 | break; | |
868 | } | |
869 | ||
870 | /* quirk for UDA1321/N101 */ | |
871 | /* note that detection between firmware 2.1.1.7 (N101) and later 2.1.1.21 */ | |
872 | /* is not very clear from datasheets */ | |
873 | /* I hope that the min value is -15360 for newer firmware --jk */ | |
874 | if (((state->vendor == 0x471 && (state->product == 0x104 || state->product == 0x105 || state->product == 0x101)) || | |
875 | (state->vendor == 0x672 && state->product == 0x1041)) && !strcmp(kctl->id.name, "PCM Playback Volume") && | |
876 | cval->min == -15616) { | |
877 | snd_printk("USB Audio: using volume control quirk for the UDA1321/N101 chip\n"); | |
878 | cval->max = -256; | |
879 | } | |
880 | ||
881 | snd_printdd(KERN_INFO "[%d] FU [%s] ch = %d, val = %d/%d/%d\n", | |
882 | cval->id, kctl->id.name, cval->channels, cval->min, cval->max, cval->res); | |
883 | add_control_to_empty(state->chip->card, kctl); | |
884 | } | |
885 | ||
886 | ||
887 | ||
888 | /* | |
889 | * parse a feature unit | |
890 | * | |
891 | * most of controlls are defined here. | |
892 | */ | |
893 | static int parse_audio_feature_unit(mixer_build_t *state, int unitid, unsigned char *ftr) | |
894 | { | |
895 | int channels, i, j; | |
896 | usb_audio_term_t iterm; | |
897 | unsigned int master_bits, first_ch_bits; | |
898 | int err, csize; | |
899 | ||
900 | if (ftr[0] < 7 || ! (csize = ftr[5]) || ftr[0] < 7 + csize) { | |
901 | snd_printk(KERN_ERR "usbaudio: unit %u: invalid FEATURE_UNIT descriptor\n", unitid); | |
902 | return -EINVAL; | |
903 | } | |
904 | ||
905 | /* parse the source unit */ | |
906 | if ((err = parse_audio_unit(state, ftr[4])) < 0) | |
907 | return err; | |
908 | ||
909 | /* determine the input source type and name */ | |
910 | if (check_input_term(state, ftr[4], &iterm) < 0) | |
911 | return -EINVAL; | |
912 | ||
913 | channels = (ftr[0] - 7) / csize - 1; | |
914 | ||
915 | master_bits = snd_usb_combine_bytes(ftr + 6, csize); | |
916 | if (channels > 0) | |
917 | first_ch_bits = snd_usb_combine_bytes(ftr + 6 + csize, csize); | |
918 | else | |
919 | first_ch_bits = 0; | |
920 | /* check all control types */ | |
921 | for (i = 0; i < 10; i++) { | |
922 | unsigned int ch_bits = 0; | |
923 | for (j = 0; j < channels; j++) { | |
924 | unsigned int mask = snd_usb_combine_bytes(ftr + 6 + csize * (j+1), csize); | |
925 | if (mask & (1 << i)) | |
926 | ch_bits |= (1 << j); | |
927 | } | |
928 | if (ch_bits & 1) /* the first channel must be set (for ease of programming) */ | |
929 | build_feature_ctl(state, ftr, ch_bits, i, &iterm, unitid); | |
930 | if (master_bits & (1 << i)) | |
931 | build_feature_ctl(state, ftr, 0, i, &iterm, unitid); | |
932 | } | |
933 | ||
934 | return 0; | |
935 | } | |
936 | ||
937 | ||
938 | /* | |
939 | * Mixer Unit | |
940 | */ | |
941 | ||
942 | /* | |
943 | * build a mixer unit control | |
944 | * | |
945 | * the callbacks are identical with feature unit. | |
946 | * input channel number (zero based) is given in control field instead. | |
947 | */ | |
948 | ||
949 | static void build_mixer_unit_ctl(mixer_build_t *state, unsigned char *desc, | |
950 | int in_pin, int in_ch, int unitid, | |
951 | usb_audio_term_t *iterm) | |
952 | { | |
953 | usb_mixer_elem_info_t *cval; | |
954 | unsigned int input_pins = desc[4]; | |
955 | unsigned int num_outs = desc[5 + input_pins]; | |
956 | unsigned int i, len; | |
957 | snd_kcontrol_t *kctl; | |
958 | ||
959 | if (check_ignored_ctl(state, unitid, 0)) | |
960 | return; | |
961 | ||
962 | cval = kcalloc(1, sizeof(*cval), GFP_KERNEL); | |
963 | if (! cval) | |
964 | return; | |
965 | ||
966 | cval->chip = state->chip; | |
967 | cval->ctrlif = state->ctrlif; | |
968 | cval->id = unitid; | |
969 | cval->control = in_ch + 1; /* based on 1 */ | |
970 | cval->val_type = USB_MIXER_S16; | |
971 | for (i = 0; i < num_outs; i++) { | |
972 | if (check_matrix_bitmap(desc + 9 + input_pins, in_ch, i, num_outs)) { | |
973 | cval->cmask |= (1 << i); | |
974 | cval->channels++; | |
975 | } | |
976 | } | |
977 | ||
978 | /* get min/max values */ | |
979 | get_min_max(cval, 0); | |
980 | ||
981 | kctl = snd_ctl_new1(&usb_feature_unit_ctl, cval); | |
982 | if (! kctl) { | |
983 | snd_printk(KERN_ERR "cannot malloc kcontrol\n"); | |
984 | kfree(cval); | |
985 | return; | |
986 | } | |
987 | kctl->private_free = usb_mixer_elem_free; | |
988 | ||
989 | len = check_mapped_name(state, unitid, 0, kctl->id.name, sizeof(kctl->id.name)); | |
990 | if (! len) | |
991 | len = get_term_name(state, iterm, kctl->id.name, sizeof(kctl->id.name), 0); | |
992 | if (! len) | |
993 | len = sprintf(kctl->id.name, "Mixer Source %d", in_ch + 1); | |
994 | strlcat(kctl->id.name + len, " Volume", sizeof(kctl->id.name)); | |
995 | ||
996 | snd_printdd(KERN_INFO "[%d] MU [%s] ch = %d, val = %d/%d\n", | |
997 | cval->id, kctl->id.name, cval->channels, cval->min, cval->max); | |
998 | add_control_to_empty(state->chip->card, kctl); | |
999 | } | |
1000 | ||
1001 | ||
1002 | /* | |
1003 | * parse a mixer unit | |
1004 | */ | |
1005 | static int parse_audio_mixer_unit(mixer_build_t *state, int unitid, unsigned char *desc) | |
1006 | { | |
1007 | usb_audio_term_t iterm; | |
1008 | int input_pins, num_ins, num_outs; | |
1009 | int pin, ich, err; | |
1010 | ||
1011 | if (desc[0] < 11 || ! (input_pins = desc[4]) || ! (num_outs = desc[5 + input_pins])) { | |
1012 | snd_printk(KERN_ERR "invalid MIXER UNIT descriptor %d\n", unitid); | |
1013 | return -EINVAL; | |
1014 | } | |
1015 | /* no bmControls field (e.g. Maya44) -> ignore */ | |
1016 | if (desc[0] <= 10 + input_pins) { | |
1017 | snd_printdd(KERN_INFO "MU %d has no bmControls field\n", unitid); | |
1018 | return 0; | |
1019 | } | |
1020 | ||
1021 | num_ins = 0; | |
1022 | ich = 0; | |
1023 | for (pin = 0; pin < input_pins; pin++) { | |
1024 | err = parse_audio_unit(state, desc[5 + pin]); | |
1025 | if (err < 0) | |
1026 | return err; | |
1027 | err = check_input_term(state, desc[5 + pin], &iterm); | |
1028 | if (err < 0) | |
1029 | return err; | |
1030 | num_ins += iterm.channels; | |
1031 | for (; ich < num_ins; ++ich) { | |
1032 | int och, ich_has_controls = 0; | |
1033 | ||
1034 | for (och = 0; och < num_outs; ++och) { | |
1035 | if (check_matrix_bitmap(desc + 9 + input_pins, | |
1036 | ich, och, num_outs)) { | |
1037 | ich_has_controls = 1; | |
1038 | break; | |
1039 | } | |
1040 | } | |
1041 | if (ich_has_controls) | |
1042 | build_mixer_unit_ctl(state, desc, pin, ich, | |
1043 | unitid, &iterm); | |
1044 | } | |
1045 | } | |
1046 | return 0; | |
1047 | } | |
1048 | ||
1049 | ||
1050 | /* | |
1051 | * Processing Unit / Extension Unit | |
1052 | */ | |
1053 | ||
1054 | /* get callback for processing/extension unit */ | |
1055 | static int mixer_ctl_procunit_get(snd_kcontrol_t *kcontrol, snd_ctl_elem_value_t *ucontrol) | |
1056 | { | |
1057 | usb_mixer_elem_info_t *cval = kcontrol->private_data; | |
1058 | int err, val; | |
1059 | ||
1060 | err = get_cur_ctl_value(cval, cval->control << 8, &val); | |
1061 | if (err < 0 && cval->chip->ignore_ctl_error) { | |
1062 | ucontrol->value.integer.value[0] = cval->min; | |
1063 | return 0; | |
1064 | } | |
1065 | if (err < 0) | |
1066 | return err; | |
1067 | val = get_relative_value(cval, val); | |
1068 | ucontrol->value.integer.value[0] = val; | |
1069 | return 0; | |
1070 | } | |
1071 | ||
1072 | /* put callback for processing/extension unit */ | |
1073 | static int mixer_ctl_procunit_put(snd_kcontrol_t *kcontrol, snd_ctl_elem_value_t *ucontrol) | |
1074 | { | |
1075 | usb_mixer_elem_info_t *cval = kcontrol->private_data; | |
1076 | int val, oval, err; | |
1077 | ||
1078 | err = get_cur_ctl_value(cval, cval->control << 8, &oval); | |
1079 | if (err < 0) { | |
1080 | if (cval->chip->ignore_ctl_error) | |
1081 | return 0; | |
1082 | return err; | |
1083 | } | |
1084 | val = ucontrol->value.integer.value[0]; | |
1085 | val = get_abs_value(cval, val); | |
1086 | if (val != oval) { | |
1087 | set_cur_ctl_value(cval, cval->control << 8, val); | |
1088 | return 1; | |
1089 | } | |
1090 | return 0; | |
1091 | } | |
1092 | ||
1093 | /* alsa control interface for processing/extension unit */ | |
1094 | static snd_kcontrol_new_t mixer_procunit_ctl = { | |
1095 | .iface = SNDRV_CTL_ELEM_IFACE_MIXER, | |
1096 | .name = "", /* will be filled later */ | |
1097 | .info = mixer_ctl_feature_info, | |
1098 | .get = mixer_ctl_procunit_get, | |
1099 | .put = mixer_ctl_procunit_put, | |
1100 | }; | |
1101 | ||
1102 | ||
1103 | /* | |
1104 | * predefined data for processing units | |
1105 | */ | |
1106 | struct procunit_value_info { | |
1107 | int control; | |
1108 | char *suffix; | |
1109 | int val_type; | |
1110 | int min_value; | |
1111 | }; | |
1112 | ||
1113 | struct procunit_info { | |
1114 | int type; | |
1115 | char *name; | |
1116 | struct procunit_value_info *values; | |
1117 | }; | |
1118 | ||
1119 | static struct procunit_value_info updown_proc_info[] = { | |
1120 | { USB_PROC_UPDOWN_SWITCH, "Switch", USB_MIXER_BOOLEAN }, | |
1121 | { USB_PROC_UPDOWN_MODE_SEL, "Mode Select", USB_MIXER_U8, 1 }, | |
1122 | { 0 } | |
1123 | }; | |
1124 | static struct procunit_value_info prologic_proc_info[] = { | |
1125 | { USB_PROC_PROLOGIC_SWITCH, "Switch", USB_MIXER_BOOLEAN }, | |
1126 | { USB_PROC_PROLOGIC_MODE_SEL, "Mode Select", USB_MIXER_U8, 1 }, | |
1127 | { 0 } | |
1128 | }; | |
1129 | static struct procunit_value_info threed_enh_proc_info[] = { | |
1130 | { USB_PROC_3DENH_SWITCH, "Switch", USB_MIXER_BOOLEAN }, | |
1131 | { USB_PROC_3DENH_SPACE, "Spaciousness", USB_MIXER_U8 }, | |
1132 | { 0 } | |
1133 | }; | |
1134 | static struct procunit_value_info reverb_proc_info[] = { | |
1135 | { USB_PROC_REVERB_SWITCH, "Switch", USB_MIXER_BOOLEAN }, | |
1136 | { USB_PROC_REVERB_LEVEL, "Level", USB_MIXER_U8 }, | |
1137 | { USB_PROC_REVERB_TIME, "Time", USB_MIXER_U16 }, | |
1138 | { USB_PROC_REVERB_DELAY, "Delay", USB_MIXER_U8 }, | |
1139 | { 0 } | |
1140 | }; | |
1141 | static struct procunit_value_info chorus_proc_info[] = { | |
1142 | { USB_PROC_CHORUS_SWITCH, "Switch", USB_MIXER_BOOLEAN }, | |
1143 | { USB_PROC_CHORUS_LEVEL, "Level", USB_MIXER_U8 }, | |
1144 | { USB_PROC_CHORUS_RATE, "Rate", USB_MIXER_U16 }, | |
1145 | { USB_PROC_CHORUS_DEPTH, "Depth", USB_MIXER_U16 }, | |
1146 | { 0 } | |
1147 | }; | |
1148 | static struct procunit_value_info dcr_proc_info[] = { | |
1149 | { USB_PROC_DCR_SWITCH, "Switch", USB_MIXER_BOOLEAN }, | |
1150 | { USB_PROC_DCR_RATIO, "Ratio", USB_MIXER_U16 }, | |
1151 | { USB_PROC_DCR_MAX_AMP, "Max Amp", USB_MIXER_S16 }, | |
1152 | { USB_PROC_DCR_THRESHOLD, "Threshold", USB_MIXER_S16 }, | |
1153 | { USB_PROC_DCR_ATTACK, "Attack Time", USB_MIXER_U16 }, | |
1154 | { USB_PROC_DCR_RELEASE, "Release Time", USB_MIXER_U16 }, | |
1155 | { 0 } | |
1156 | }; | |
1157 | ||
1158 | static struct procunit_info procunits[] = { | |
1159 | { USB_PROC_UPDOWN, "Up Down", updown_proc_info }, | |
1160 | { USB_PROC_PROLOGIC, "Dolby Prologic", prologic_proc_info }, | |
1161 | { USB_PROC_3DENH, "3D Stereo Extender", threed_enh_proc_info }, | |
1162 | { USB_PROC_REVERB, "Reverb", reverb_proc_info }, | |
1163 | { USB_PROC_CHORUS, "Chorus", chorus_proc_info }, | |
1164 | { USB_PROC_DCR, "DCR", dcr_proc_info }, | |
1165 | { 0 }, | |
1166 | }; | |
1167 | ||
1168 | /* | |
1169 | * build a processing/extension unit | |
1170 | */ | |
1171 | static int build_audio_procunit(mixer_build_t *state, int unitid, unsigned char *dsc, struct procunit_info *list, char *name) | |
1172 | { | |
1173 | int num_ins = dsc[6]; | |
1174 | usb_mixer_elem_info_t *cval; | |
1175 | snd_kcontrol_t *kctl; | |
1176 | int i, err, nameid, type, len; | |
1177 | struct procunit_info *info; | |
1178 | struct procunit_value_info *valinfo; | |
1179 | static struct procunit_value_info default_value_info[] = { | |
1180 | { 0x01, "Switch", USB_MIXER_BOOLEAN }, | |
1181 | { 0 } | |
1182 | }; | |
1183 | static struct procunit_info default_info = { | |
1184 | 0, NULL, default_value_info | |
1185 | }; | |
1186 | ||
1187 | if (dsc[0] < 13 || dsc[0] < 13 + num_ins || dsc[0] < num_ins + dsc[11 + num_ins]) { | |
1188 | snd_printk(KERN_ERR "invalid %s descriptor (id %d)\n", name, unitid); | |
1189 | return -EINVAL; | |
1190 | } | |
1191 | ||
1192 | for (i = 0; i < num_ins; i++) { | |
1193 | if ((err = parse_audio_unit(state, dsc[7 + i])) < 0) | |
1194 | return err; | |
1195 | } | |
1196 | ||
1197 | type = combine_word(&dsc[4]); | |
1198 | if (! type) | |
1199 | return 0; /* undefined? */ | |
1200 | ||
1201 | for (info = list; info && info->type; info++) | |
1202 | if (info->type == type) | |
1203 | break; | |
1204 | if (! info || ! info->type) | |
1205 | info = &default_info; | |
1206 | ||
1207 | for (valinfo = info->values; valinfo->control; valinfo++) { | |
1208 | /* FIXME: bitmap might be longer than 8bit */ | |
1209 | if (! (dsc[12 + num_ins] & (1 << (valinfo->control - 1)))) | |
1210 | continue; | |
1211 | if (check_ignored_ctl(state, unitid, valinfo->control)) | |
1212 | continue; | |
1213 | cval = kcalloc(1, sizeof(*cval), GFP_KERNEL); | |
1214 | if (! cval) { | |
1215 | snd_printk(KERN_ERR "cannot malloc kcontrol\n"); | |
1216 | return -ENOMEM; | |
1217 | } | |
1218 | cval->chip = state->chip; | |
1219 | cval->ctrlif = state->ctrlif; | |
1220 | cval->id = unitid; | |
1221 | cval->control = valinfo->control; | |
1222 | cval->val_type = valinfo->val_type; | |
1223 | cval->channels = 1; | |
1224 | ||
1225 | /* get min/max values */ | |
1226 | if (type == USB_PROC_UPDOWN && cval->control == USB_PROC_UPDOWN_MODE_SEL) { | |
1227 | /* FIXME: hard-coded */ | |
1228 | cval->min = 1; | |
1229 | cval->max = dsc[15]; | |
1230 | cval->res = 1; | |
1231 | cval->initialized = 1; | |
1232 | } else | |
1233 | get_min_max(cval, valinfo->min_value); | |
1234 | ||
1235 | kctl = snd_ctl_new1(&mixer_procunit_ctl, cval); | |
1236 | if (! kctl) { | |
1237 | snd_printk(KERN_ERR "cannot malloc kcontrol\n"); | |
1238 | kfree(cval); | |
1239 | return -ENOMEM; | |
1240 | } | |
1241 | kctl->private_free = usb_mixer_elem_free; | |
1242 | ||
1243 | if (check_mapped_name(state, unitid, cval->control, kctl->id.name, sizeof(kctl->id.name))) | |
1244 | ; | |
1245 | else if (info->name) | |
1246 | strlcpy(kctl->id.name, info->name, sizeof(kctl->id.name)); | |
1247 | else { | |
1248 | nameid = dsc[12 + num_ins + dsc[11 + num_ins]]; | |
1249 | len = 0; | |
1250 | if (nameid) | |
1251 | len = snd_usb_copy_string_desc(state, nameid, kctl->id.name, sizeof(kctl->id.name)); | |
1252 | if (! len) | |
1253 | strlcpy(kctl->id.name, name, sizeof(kctl->id.name)); | |
1254 | } | |
1255 | strlcat(kctl->id.name, " ", sizeof(kctl->id.name)); | |
1256 | strlcat(kctl->id.name, valinfo->suffix, sizeof(kctl->id.name)); | |
1257 | ||
1258 | snd_printdd(KERN_INFO "[%d] PU [%s] ch = %d, val = %d/%d\n", | |
1259 | cval->id, kctl->id.name, cval->channels, cval->min, cval->max); | |
1260 | if ((err = add_control_to_empty(state->chip->card, kctl)) < 0) | |
1261 | return err; | |
1262 | } | |
1263 | return 0; | |
1264 | } | |
1265 | ||
1266 | ||
1267 | static int parse_audio_processing_unit(mixer_build_t *state, int unitid, unsigned char *desc) | |
1268 | { | |
1269 | return build_audio_procunit(state, unitid, desc, procunits, "Processing Unit"); | |
1270 | } | |
1271 | ||
1272 | static int parse_audio_extension_unit(mixer_build_t *state, int unitid, unsigned char *desc) | |
1273 | { | |
1274 | return build_audio_procunit(state, unitid, desc, NULL, "Extension Unit"); | |
1275 | } | |
1276 | ||
1277 | ||
1278 | /* | |
1279 | * Selector Unit | |
1280 | */ | |
1281 | ||
1282 | /* info callback for selector unit | |
1283 | * use an enumerator type for routing | |
1284 | */ | |
1285 | static int mixer_ctl_selector_info(snd_kcontrol_t *kcontrol, snd_ctl_elem_info_t *uinfo) | |
1286 | { | |
1287 | usb_mixer_elem_info_t *cval = kcontrol->private_data; | |
1288 | char **itemlist = (char **)kcontrol->private_value; | |
1289 | ||
1290 | snd_assert(itemlist, return -EINVAL); | |
1291 | uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED; | |
1292 | uinfo->count = 1; | |
1293 | uinfo->value.enumerated.items = cval->max; | |
1294 | if ((int)uinfo->value.enumerated.item >= cval->max) | |
1295 | uinfo->value.enumerated.item = cval->max - 1; | |
1296 | strcpy(uinfo->value.enumerated.name, itemlist[uinfo->value.enumerated.item]); | |
1297 | return 0; | |
1298 | } | |
1299 | ||
1300 | /* get callback for selector unit */ | |
1301 | static int mixer_ctl_selector_get(snd_kcontrol_t *kcontrol, snd_ctl_elem_value_t *ucontrol) | |
1302 | { | |
1303 | usb_mixer_elem_info_t *cval = kcontrol->private_data; | |
1304 | int val, err; | |
1305 | ||
1306 | err = get_cur_ctl_value(cval, 0, &val); | |
1307 | if (err < 0) { | |
1308 | if (cval->chip->ignore_ctl_error) { | |
1309 | ucontrol->value.enumerated.item[0] = 0; | |
1310 | return 0; | |
1311 | } | |
1312 | return err; | |
1313 | } | |
1314 | val = get_relative_value(cval, val); | |
1315 | ucontrol->value.enumerated.item[0] = val; | |
1316 | return 0; | |
1317 | } | |
1318 | ||
1319 | /* put callback for selector unit */ | |
1320 | static int mixer_ctl_selector_put(snd_kcontrol_t *kcontrol, snd_ctl_elem_value_t *ucontrol) | |
1321 | { | |
1322 | usb_mixer_elem_info_t *cval = kcontrol->private_data; | |
1323 | int val, oval, err; | |
1324 | ||
1325 | err = get_cur_ctl_value(cval, 0, &oval); | |
1326 | if (err < 0) { | |
1327 | if (cval->chip->ignore_ctl_error) | |
1328 | return 0; | |
1329 | return err; | |
1330 | } | |
1331 | val = ucontrol->value.enumerated.item[0]; | |
1332 | val = get_abs_value(cval, val); | |
1333 | if (val != oval) { | |
1334 | set_cur_ctl_value(cval, 0, val); | |
1335 | return 1; | |
1336 | } | |
1337 | return 0; | |
1338 | } | |
1339 | ||
1340 | /* alsa control interface for selector unit */ | |
1341 | static snd_kcontrol_new_t mixer_selectunit_ctl = { | |
1342 | .iface = SNDRV_CTL_ELEM_IFACE_MIXER, | |
1343 | .name = "", /* will be filled later */ | |
1344 | .info = mixer_ctl_selector_info, | |
1345 | .get = mixer_ctl_selector_get, | |
1346 | .put = mixer_ctl_selector_put, | |
1347 | }; | |
1348 | ||
1349 | ||
1350 | /* private free callback. | |
1351 | * free both private_data and private_value | |
1352 | */ | |
1353 | static void usb_mixer_selector_elem_free(snd_kcontrol_t *kctl) | |
1354 | { | |
1355 | int i, num_ins = 0; | |
1356 | ||
1357 | if (kctl->private_data) { | |
1358 | usb_mixer_elem_info_t *cval = kctl->private_data; | |
1359 | num_ins = cval->max; | |
1360 | kfree(cval); | |
1361 | kctl->private_data = NULL; | |
1362 | } | |
1363 | if (kctl->private_value) { | |
1364 | char **itemlist = (char **)kctl->private_value; | |
1365 | for (i = 0; i < num_ins; i++) | |
1366 | kfree(itemlist[i]); | |
1367 | kfree(itemlist); | |
1368 | kctl->private_value = 0; | |
1369 | } | |
1370 | } | |
1371 | ||
1372 | /* | |
1373 | * parse a selector unit | |
1374 | */ | |
1375 | static int parse_audio_selector_unit(mixer_build_t *state, int unitid, unsigned char *desc) | |
1376 | { | |
1377 | unsigned int num_ins = desc[4]; | |
1378 | unsigned int i, nameid, len; | |
1379 | int err; | |
1380 | usb_mixer_elem_info_t *cval; | |
1381 | snd_kcontrol_t *kctl; | |
1382 | char **namelist; | |
1383 | ||
1384 | if (! num_ins || desc[0] < 6 + num_ins) { | |
1385 | snd_printk(KERN_ERR "invalid SELECTOR UNIT descriptor %d\n", unitid); | |
1386 | return -EINVAL; | |
1387 | } | |
1388 | ||
1389 | for (i = 0; i < num_ins; i++) { | |
1390 | if ((err = parse_audio_unit(state, desc[5 + i])) < 0) | |
1391 | return err; | |
1392 | } | |
1393 | ||
1394 | if (num_ins == 1) /* only one ? nonsense! */ | |
1395 | return 0; | |
1396 | ||
1397 | if (check_ignored_ctl(state, unitid, 0)) | |
1398 | return 0; | |
1399 | ||
1400 | cval = kcalloc(1, sizeof(*cval), GFP_KERNEL); | |
1401 | if (! cval) { | |
1402 | snd_printk(KERN_ERR "cannot malloc kcontrol\n"); | |
1403 | return -ENOMEM; | |
1404 | } | |
1405 | cval->chip = state->chip; | |
1406 | cval->ctrlif = state->ctrlif; | |
1407 | cval->id = unitid; | |
1408 | cval->val_type = USB_MIXER_U8; | |
1409 | cval->channels = 1; | |
1410 | cval->min = 1; | |
1411 | cval->max = num_ins; | |
1412 | cval->res = 1; | |
1413 | cval->initialized = 1; | |
1414 | ||
1415 | namelist = kmalloc(sizeof(char *) * num_ins, GFP_KERNEL); | |
1416 | if (! namelist) { | |
1417 | snd_printk(KERN_ERR "cannot malloc\n"); | |
1418 | kfree(cval); | |
1419 | return -ENOMEM; | |
1420 | } | |
1421 | #define MAX_ITEM_NAME_LEN 64 | |
1422 | for (i = 0; i < num_ins; i++) { | |
1423 | usb_audio_term_t iterm; | |
1424 | len = 0; | |
1425 | namelist[i] = kmalloc(MAX_ITEM_NAME_LEN, GFP_KERNEL); | |
1426 | if (! namelist[i]) { | |
1427 | snd_printk(KERN_ERR "cannot malloc\n"); | |
1428 | while (--i > 0) | |
1429 | kfree(namelist[i]); | |
1430 | kfree(namelist); | |
1431 | kfree(cval); | |
1432 | return -ENOMEM; | |
1433 | } | |
8e062ec7 CL |
1434 | len = check_mapped_selector_name(state, unitid, i, namelist[i], |
1435 | MAX_ITEM_NAME_LEN); | |
1436 | if (! len && check_input_term(state, desc[5 + i], &iterm) >= 0) | |
1da177e4 LT |
1437 | len = get_term_name(state, &iterm, namelist[i], MAX_ITEM_NAME_LEN, 0); |
1438 | if (! len) | |
1439 | sprintf(namelist[i], "Input %d", i); | |
1440 | } | |
1441 | ||
1442 | kctl = snd_ctl_new1(&mixer_selectunit_ctl, cval); | |
1443 | if (! kctl) { | |
1444 | snd_printk(KERN_ERR "cannot malloc kcontrol\n"); | |
1445 | kfree(cval); | |
1446 | return -ENOMEM; | |
1447 | } | |
1448 | kctl->private_value = (unsigned long)namelist; | |
1449 | kctl->private_free = usb_mixer_selector_elem_free; | |
1450 | ||
1451 | nameid = desc[desc[0] - 1]; | |
1452 | len = check_mapped_name(state, unitid, 0, kctl->id.name, sizeof(kctl->id.name)); | |
1453 | if (len) | |
1454 | ; | |
1455 | else if (nameid) | |
1456 | snd_usb_copy_string_desc(state, nameid, kctl->id.name, sizeof(kctl->id.name)); | |
1457 | else { | |
1458 | len = get_term_name(state, &state->oterm, | |
1459 | kctl->id.name, sizeof(kctl->id.name), 0); | |
1460 | if (! len) | |
1461 | strlcpy(kctl->id.name, "USB", sizeof(kctl->id.name)); | |
1462 | ||
1463 | if ((state->oterm.type & 0xff00) == 0x0100) | |
1464 | strlcat(kctl->id.name, " Capture Source", sizeof(kctl->id.name)); | |
1465 | else | |
1466 | strlcat(kctl->id.name, " Playback Source", sizeof(kctl->id.name)); | |
1467 | } | |
1468 | ||
1469 | snd_printdd(KERN_INFO "[%d] SU [%s] items = %d\n", | |
1470 | cval->id, kctl->id.name, num_ins); | |
1471 | if ((err = add_control_to_empty(state->chip->card, kctl)) < 0) | |
1472 | return err; | |
1473 | ||
1474 | return 0; | |
1475 | } | |
1476 | ||
1477 | ||
1478 | /* | |
1479 | * parse an audio unit recursively | |
1480 | */ | |
1481 | ||
1482 | static int parse_audio_unit(mixer_build_t *state, int unitid) | |
1483 | { | |
1484 | unsigned char *p1; | |
1485 | ||
1486 | if (test_and_set_bit(unitid, state->unitbitmap)) | |
1487 | return 0; /* the unit already visited */ | |
1488 | ||
1489 | p1 = find_audio_control_unit(state, unitid); | |
1490 | if (!p1) { | |
1491 | snd_printk(KERN_ERR "usbaudio: unit %d not found!\n", unitid); | |
1492 | return -EINVAL; | |
1493 | } | |
1494 | ||
1495 | switch (p1[2]) { | |
1496 | case INPUT_TERMINAL: | |
1497 | return 0; /* NOP */ | |
1498 | case MIXER_UNIT: | |
1499 | return parse_audio_mixer_unit(state, unitid, p1); | |
1500 | case SELECTOR_UNIT: | |
1501 | return parse_audio_selector_unit(state, unitid, p1); | |
1502 | case FEATURE_UNIT: | |
1503 | return parse_audio_feature_unit(state, unitid, p1); | |
1504 | case PROCESSING_UNIT: | |
1505 | return parse_audio_processing_unit(state, unitid, p1); | |
1506 | case EXTENSION_UNIT: | |
1507 | return parse_audio_extension_unit(state, unitid, p1); | |
1508 | default: | |
1509 | snd_printk(KERN_ERR "usbaudio: unit %u: unexpected type 0x%02x\n", unitid, p1[2]); | |
1510 | return -EINVAL; | |
1511 | } | |
1512 | } | |
1513 | ||
1514 | /* | |
1515 | * create mixer controls | |
1516 | * | |
1517 | * walk through all OUTPUT_TERMINAL descriptors to search for mixers | |
1518 | */ | |
1519 | int snd_usb_create_mixer(snd_usb_audio_t *chip, int ctrlif) | |
1520 | { | |
1521 | unsigned char *desc; | |
1522 | mixer_build_t state; | |
1523 | int err; | |
1524 | const struct usbmix_ctl_map *map; | |
1525 | struct usb_device_descriptor *dev = &chip->dev->descriptor; | |
1526 | struct usb_host_interface *hostif = &usb_ifnum_to_if(chip->dev, ctrlif)->altsetting[0]; | |
1527 | ||
1528 | strcpy(chip->card->mixername, "USB Mixer"); | |
1529 | ||
1530 | memset(&state, 0, sizeof(state)); | |
1531 | state.chip = chip; | |
1532 | state.buffer = hostif->extra; | |
1533 | state.buflen = hostif->extralen; | |
1534 | state.ctrlif = ctrlif; | |
1535 | state.vendor = le16_to_cpu(dev->idVendor); | |
1536 | state.product = le16_to_cpu(dev->idProduct); | |
1537 | ||
1538 | /* check the mapping table */ | |
1539 | for (map = usbmix_ctl_maps; map->vendor; map++) { | |
1540 | if (map->vendor == state.vendor && map->product == state.product) { | |
1541 | state.map = map->map; | |
8e062ec7 | 1542 | state.selector_map = map->selector_map; |
1da177e4 LT |
1543 | chip->ignore_ctl_error = map->ignore_ctl_error; |
1544 | break; | |
1545 | } | |
1546 | } | |
1547 | #ifdef IGNORE_CTL_ERROR | |
1548 | chip->ignore_ctl_error = 1; | |
1549 | #endif | |
1550 | ||
1551 | desc = NULL; | |
1552 | while ((desc = snd_usb_find_csint_desc(hostif->extra, hostif->extralen, desc, OUTPUT_TERMINAL)) != NULL) { | |
1553 | if (desc[0] < 9) | |
1554 | continue; /* invalid descriptor? */ | |
1555 | set_bit(desc[3], state.unitbitmap); /* mark terminal ID as visited */ | |
1556 | state.oterm.id = desc[3]; | |
1557 | state.oterm.type = combine_word(&desc[4]); | |
1558 | state.oterm.name = desc[8]; | |
1559 | err = parse_audio_unit(&state, desc[7]); | |
1560 | if (err < 0) | |
1561 | return err; | |
1562 | } | |
1563 | return 0; | |
1564 | } |