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Commit | Line | Data |
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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 | ||
157a57b6 DM |
29 | /* |
30 | * TODOs, for both the mixer and the streaming interfaces: | |
31 | * | |
32 | * - support for UAC2 effect units | |
33 | * - support for graphical equalizers | |
34 | * - RANGE and MEM set commands (UAC2) | |
35 | * - RANGE and MEM interrupt dispatchers (UAC2) | |
36 | * - audio channel clustering (UAC2) | |
37 | * - audio sample rate converter units (UAC2) | |
38 | * - proper handling of clock multipliers (UAC2) | |
39 | * - dispatch clock change notifications (UAC2) | |
40 | * - stop PCM streams which use a clock that became invalid | |
41 | * - stop PCM streams which use a clock selector that has changed | |
42 | * - parse available sample rates again when clock sources changed | |
43 | */ | |
44 | ||
1da177e4 LT |
45 | #include <linux/bitops.h> |
46 | #include <linux/init.h> | |
47 | #include <linux/list.h> | |
48 | #include <linux/slab.h> | |
49 | #include <linux/string.h> | |
50 | #include <linux/usb.h> | |
28e1b773 | 51 | #include <linux/usb/audio.h> |
23caaf19 | 52 | #include <linux/usb/audio-v2.h> |
28e1b773 | 53 | |
1da177e4 LT |
54 | #include <sound/core.h> |
55 | #include <sound/control.h> | |
b259b10c | 56 | #include <sound/hwdep.h> |
aafad562 | 57 | #include <sound/info.h> |
7bc5ba7e | 58 | #include <sound/tlv.h> |
1da177e4 LT |
59 | |
60 | #include "usbaudio.h" | |
f0b5e634 | 61 | #include "mixer.h" |
e5779998 | 62 | #include "helper.h" |
7b1eda22 | 63 | #include "mixer_quirks.h" |
88a8516a | 64 | #include "power.h" |
4d1a70da | 65 | |
ebfdeea3 JK |
66 | #define MAX_ID_ELEMS 256 |
67 | ||
1da177e4 LT |
68 | struct usb_audio_term { |
69 | int id; | |
70 | int type; | |
71 | int channels; | |
72 | unsigned int chconfig; | |
73 | int name; | |
74 | }; | |
75 | ||
76 | struct usbmix_name_map; | |
77 | ||
86e07d34 TI |
78 | struct mixer_build { |
79 | struct snd_usb_audio *chip; | |
84957a8a | 80 | struct usb_mixer_interface *mixer; |
1da177e4 LT |
81 | unsigned char *buffer; |
82 | unsigned int buflen; | |
291186e0 | 83 | DECLARE_BITMAP(unitbitmap, MAX_ID_ELEMS); |
86e07d34 | 84 | struct usb_audio_term oterm; |
1da177e4 | 85 | const struct usbmix_name_map *map; |
8e062ec7 | 86 | const struct usbmix_selector_map *selector_map; |
1da177e4 LT |
87 | }; |
88 | ||
1cdfa9f3 | 89 | /*E-mu 0202/0404/0204 eXtension Unit(XU) control*/ |
7d2b451e SK |
90 | enum { |
91 | USB_XU_CLOCK_RATE = 0xe301, | |
92 | USB_XU_CLOCK_SOURCE = 0xe302, | |
93 | USB_XU_DIGITAL_IO_STATUS = 0xe303, | |
94 | USB_XU_DEVICE_OPTIONS = 0xe304, | |
95 | USB_XU_DIRECT_MONITORING = 0xe305, | |
96 | USB_XU_METERING = 0xe306 | |
97 | }; | |
98 | enum { | |
99 | USB_XU_CLOCK_SOURCE_SELECTOR = 0x02, /* clock source*/ | |
100 | USB_XU_CLOCK_RATE_SELECTOR = 0x03, /* clock rate */ | |
101 | USB_XU_DIGITAL_FORMAT_SELECTOR = 0x01, /* the spdif format */ | |
102 | USB_XU_SOFT_LIMIT_SELECTOR = 0x03 /* soft limiter */ | |
103 | }; | |
1da177e4 LT |
104 | |
105 | /* | |
106 | * manual mapping of mixer names | |
107 | * if the mixer topology is too complicated and the parsed names are | |
108 | * ambiguous, add the entries in usbmixer_maps.c. | |
109 | */ | |
f0b5e634 | 110 | #include "mixer_maps.c" |
1da177e4 | 111 | |
c3a3e040 JK |
112 | static const struct usbmix_name_map * |
113 | find_map(struct mixer_build *state, int unitid, int control) | |
1da177e4 | 114 | { |
c3a3e040 | 115 | const struct usbmix_name_map *p = state->map; |
1da177e4 | 116 | |
c3a3e040 JK |
117 | if (!p) |
118 | return NULL; | |
1da177e4 LT |
119 | |
120 | for (p = state->map; p->id; p++) { | |
c3a3e040 JK |
121 | if (p->id == unitid && |
122 | (!control || !p->control || control == p->control)) | |
123 | return p; | |
1da177e4 | 124 | } |
c3a3e040 | 125 | return NULL; |
1da177e4 LT |
126 | } |
127 | ||
c3a3e040 JK |
128 | /* get the mapped name if the unit matches */ |
129 | static int | |
130 | check_mapped_name(const struct usbmix_name_map *p, char *buf, int buflen) | |
1da177e4 | 131 | { |
c3a3e040 JK |
132 | if (!p || !p->name) |
133 | return 0; | |
1da177e4 | 134 | |
c3a3e040 JK |
135 | buflen--; |
136 | return strlcpy(buf, p->name, buflen); | |
137 | } | |
138 | ||
139 | /* check whether the control should be ignored */ | |
140 | static inline int | |
141 | check_ignored_ctl(const struct usbmix_name_map *p) | |
142 | { | |
143 | if (!p || p->name || p->dB) | |
1da177e4 | 144 | return 0; |
c3a3e040 JK |
145 | return 1; |
146 | } | |
147 | ||
148 | /* dB mapping */ | |
149 | static inline void check_mapped_dB(const struct usbmix_name_map *p, | |
150 | struct usb_mixer_elem_info *cval) | |
151 | { | |
152 | if (p && p->dB) { | |
153 | cval->dBmin = p->dB->min; | |
154 | cval->dBmax = p->dB->max; | |
38b65190 | 155 | cval->initialized = 1; |
1da177e4 | 156 | } |
1da177e4 LT |
157 | } |
158 | ||
8e062ec7 | 159 | /* get the mapped selector source name */ |
86e07d34 | 160 | static int check_mapped_selector_name(struct mixer_build *state, int unitid, |
8e062ec7 CL |
161 | int index, char *buf, int buflen) |
162 | { | |
163 | const struct usbmix_selector_map *p; | |
164 | ||
165 | if (! state->selector_map) | |
166 | return 0; | |
167 | for (p = state->selector_map; p->id; p++) { | |
168 | if (p->id == unitid && index < p->count) | |
169 | return strlcpy(buf, p->names[index], buflen); | |
170 | } | |
171 | return 0; | |
172 | } | |
173 | ||
1da177e4 LT |
174 | /* |
175 | * find an audio control unit with the given unit id | |
176 | */ | |
86e07d34 | 177 | static void *find_audio_control_unit(struct mixer_build *state, unsigned char unit) |
1da177e4 | 178 | { |
67e1daa0 DM |
179 | /* we just parse the header */ |
180 | struct uac_feature_unit_descriptor *hdr = NULL; | |
181 | ||
182 | while ((hdr = snd_usb_find_desc(state->buffer, state->buflen, hdr, | |
183 | USB_DT_CS_INTERFACE)) != NULL) { | |
184 | if (hdr->bLength >= 4 && | |
185 | hdr->bDescriptorSubtype >= UAC_INPUT_TERMINAL && | |
186 | hdr->bDescriptorSubtype <= UAC2_SAMPLE_RATE_CONVERTER && | |
187 | hdr->bUnitID == unit) | |
188 | return hdr; | |
1da177e4 | 189 | } |
67e1daa0 | 190 | |
1da177e4 LT |
191 | return NULL; |
192 | } | |
193 | ||
1da177e4 LT |
194 | /* |
195 | * copy a string with the given id | |
196 | */ | |
86e07d34 | 197 | static int snd_usb_copy_string_desc(struct mixer_build *state, int index, char *buf, int maxlen) |
1da177e4 LT |
198 | { |
199 | int len = usb_string(state->chip->dev, index, buf, maxlen - 1); | |
200 | buf[len] = 0; | |
201 | return len; | |
202 | } | |
203 | ||
204 | /* | |
205 | * convert from the byte/word on usb descriptor to the zero-based integer | |
206 | */ | |
86e07d34 | 207 | static int convert_signed_value(struct usb_mixer_elem_info *cval, int val) |
1da177e4 LT |
208 | { |
209 | switch (cval->val_type) { | |
210 | case USB_MIXER_BOOLEAN: | |
211 | return !!val; | |
212 | case USB_MIXER_INV_BOOLEAN: | |
213 | return !val; | |
214 | case USB_MIXER_U8: | |
215 | val &= 0xff; | |
216 | break; | |
217 | case USB_MIXER_S8: | |
218 | val &= 0xff; | |
219 | if (val >= 0x80) | |
220 | val -= 0x100; | |
221 | break; | |
222 | case USB_MIXER_U16: | |
223 | val &= 0xffff; | |
224 | break; | |
225 | case USB_MIXER_S16: | |
226 | val &= 0xffff; | |
227 | if (val >= 0x8000) | |
228 | val -= 0x10000; | |
229 | break; | |
230 | } | |
231 | return val; | |
232 | } | |
233 | ||
234 | /* | |
235 | * convert from the zero-based int to the byte/word for usb descriptor | |
236 | */ | |
86e07d34 | 237 | static int convert_bytes_value(struct usb_mixer_elem_info *cval, int val) |
1da177e4 LT |
238 | { |
239 | switch (cval->val_type) { | |
240 | case USB_MIXER_BOOLEAN: | |
241 | return !!val; | |
242 | case USB_MIXER_INV_BOOLEAN: | |
243 | return !val; | |
244 | case USB_MIXER_S8: | |
245 | case USB_MIXER_U8: | |
246 | return val & 0xff; | |
247 | case USB_MIXER_S16: | |
248 | case USB_MIXER_U16: | |
249 | return val & 0xffff; | |
250 | } | |
251 | return 0; /* not reached */ | |
252 | } | |
253 | ||
86e07d34 | 254 | static int get_relative_value(struct usb_mixer_elem_info *cval, int val) |
1da177e4 LT |
255 | { |
256 | if (! cval->res) | |
257 | cval->res = 1; | |
258 | if (val < cval->min) | |
259 | return 0; | |
14790f1c TI |
260 | else if (val >= cval->max) |
261 | return (cval->max - cval->min + cval->res - 1) / cval->res; | |
1da177e4 LT |
262 | else |
263 | return (val - cval->min) / cval->res; | |
264 | } | |
265 | ||
86e07d34 | 266 | static int get_abs_value(struct usb_mixer_elem_info *cval, int val) |
1da177e4 LT |
267 | { |
268 | if (val < 0) | |
269 | return cval->min; | |
270 | if (! cval->res) | |
271 | cval->res = 1; | |
272 | val *= cval->res; | |
273 | val += cval->min; | |
274 | if (val > cval->max) | |
275 | return cval->max; | |
276 | return val; | |
277 | } | |
278 | ||
279 | ||
280 | /* | |
281 | * retrieve a mixer value | |
282 | */ | |
283 | ||
23caaf19 | 284 | static int get_ctl_value_v1(struct usb_mixer_elem_info *cval, int request, int validx, int *value_ret) |
1da177e4 | 285 | { |
3d8d4dcf | 286 | struct snd_usb_audio *chip = cval->mixer->chip; |
1da177e4 LT |
287 | unsigned char buf[2]; |
288 | int val_len = cval->val_type >= USB_MIXER_S16 ? 2 : 1; | |
289 | int timeout = 10; | |
978520b7 | 290 | int idx = 0, err; |
1da177e4 | 291 | |
88a8516a ON |
292 | err = snd_usb_autoresume(cval->mixer->chip); |
293 | if (err < 0) | |
294 | return -EIO; | |
34f3c89f | 295 | down_read(&chip->shutdown_rwsem); |
1da177e4 | 296 | while (timeout-- > 0) { |
978520b7 TI |
297 | if (chip->shutdown) |
298 | break; | |
299 | idx = snd_usb_ctrl_intf(chip) | (cval->id << 8); | |
3d8d4dcf | 300 | if (snd_usb_ctl_msg(chip->dev, usb_rcvctrlpipe(chip->dev, 0), request, |
1da177e4 | 301 | USB_RECIP_INTERFACE | USB_TYPE_CLASS | USB_DIR_IN, |
978520b7 | 302 | validx, idx, buf, val_len) >= val_len) { |
1da177e4 | 303 | *value_ret = convert_signed_value(cval, snd_usb_combine_bytes(buf, val_len)); |
978520b7 TI |
304 | err = 0; |
305 | goto out; | |
1da177e4 LT |
306 | } |
307 | } | |
0ba41d91 TI |
308 | usb_audio_dbg(chip, |
309 | "cannot get ctl value: req = %#x, wValue = %#x, wIndex = %#x, type = %d\n", | |
310 | request, validx, idx, cval->val_type); | |
978520b7 TI |
311 | err = -EINVAL; |
312 | ||
313 | out: | |
34f3c89f | 314 | up_read(&chip->shutdown_rwsem); |
978520b7 TI |
315 | snd_usb_autosuspend(cval->mixer->chip); |
316 | return err; | |
1da177e4 LT |
317 | } |
318 | ||
23caaf19 DM |
319 | static int get_ctl_value_v2(struct usb_mixer_elem_info *cval, int request, int validx, int *value_ret) |
320 | { | |
3d8d4dcf | 321 | struct snd_usb_audio *chip = cval->mixer->chip; |
e8bdb6bb | 322 | unsigned char buf[2 + 3*sizeof(__u16)]; /* enough space for one range */ |
23caaf19 | 323 | unsigned char *val; |
978520b7 | 324 | int idx = 0, ret, size; |
23caaf19 DM |
325 | __u8 bRequest; |
326 | ||
e8bdb6bb DM |
327 | if (request == UAC_GET_CUR) { |
328 | bRequest = UAC2_CS_CUR; | |
329 | size = sizeof(__u16); | |
330 | } else { | |
331 | bRequest = UAC2_CS_RANGE; | |
332 | size = sizeof(buf); | |
333 | } | |
334 | ||
335 | memset(buf, 0, sizeof(buf)); | |
23caaf19 | 336 | |
88a8516a ON |
337 | ret = snd_usb_autoresume(chip) ? -EIO : 0; |
338 | if (ret) | |
339 | goto error; | |
340 | ||
34f3c89f | 341 | down_read(&chip->shutdown_rwsem); |
978520b7 TI |
342 | if (chip->shutdown) |
343 | ret = -ENODEV; | |
344 | else { | |
345 | idx = snd_usb_ctrl_intf(chip) | (cval->id << 8); | |
346 | ret = snd_usb_ctl_msg(chip->dev, usb_rcvctrlpipe(chip->dev, 0), bRequest, | |
23caaf19 | 347 | USB_RECIP_INTERFACE | USB_TYPE_CLASS | USB_DIR_IN, |
978520b7 TI |
348 | validx, idx, buf, size); |
349 | } | |
34f3c89f | 350 | up_read(&chip->shutdown_rwsem); |
88a8516a | 351 | snd_usb_autosuspend(chip); |
23caaf19 DM |
352 | |
353 | if (ret < 0) { | |
88a8516a | 354 | error: |
0ba41d91 TI |
355 | usb_audio_err(chip, |
356 | "cannot get ctl value: req = %#x, wValue = %#x, wIndex = %#x, type = %d\n", | |
357 | request, validx, idx, cval->val_type); | |
23caaf19 DM |
358 | return ret; |
359 | } | |
360 | ||
e8bdb6bb DM |
361 | /* FIXME: how should we handle multiple triplets here? */ |
362 | ||
23caaf19 DM |
363 | switch (request) { |
364 | case UAC_GET_CUR: | |
365 | val = buf; | |
366 | break; | |
367 | case UAC_GET_MIN: | |
368 | val = buf + sizeof(__u16); | |
369 | break; | |
370 | case UAC_GET_MAX: | |
371 | val = buf + sizeof(__u16) * 2; | |
372 | break; | |
373 | case UAC_GET_RES: | |
374 | val = buf + sizeof(__u16) * 3; | |
375 | break; | |
376 | default: | |
377 | return -EINVAL; | |
378 | } | |
379 | ||
380 | *value_ret = convert_signed_value(cval, snd_usb_combine_bytes(val, sizeof(__u16))); | |
381 | ||
382 | return 0; | |
383 | } | |
384 | ||
385 | static int get_ctl_value(struct usb_mixer_elem_info *cval, int request, int validx, int *value_ret) | |
386 | { | |
9f814105 EZ |
387 | validx += cval->idx_off; |
388 | ||
23caaf19 DM |
389 | return (cval->mixer->protocol == UAC_VERSION_1) ? |
390 | get_ctl_value_v1(cval, request, validx, value_ret) : | |
391 | get_ctl_value_v2(cval, request, validx, value_ret); | |
392 | } | |
393 | ||
86e07d34 | 394 | static int get_cur_ctl_value(struct usb_mixer_elem_info *cval, int validx, int *value) |
1da177e4 | 395 | { |
de48c7bc | 396 | return get_ctl_value(cval, UAC_GET_CUR, validx, value); |
1da177e4 LT |
397 | } |
398 | ||
399 | /* channel = 0: master, 1 = first channel */ | |
641b4879 TI |
400 | static inline int get_cur_mix_raw(struct usb_mixer_elem_info *cval, |
401 | int channel, int *value) | |
1da177e4 | 402 | { |
de48c7bc | 403 | return get_ctl_value(cval, UAC_GET_CUR, (cval->control << 8) | channel, value); |
1da177e4 LT |
404 | } |
405 | ||
641b4879 TI |
406 | static int get_cur_mix_value(struct usb_mixer_elem_info *cval, |
407 | int channel, int index, int *value) | |
408 | { | |
409 | int err; | |
410 | ||
411 | if (cval->cached & (1 << channel)) { | |
412 | *value = cval->cache_val[index]; | |
413 | return 0; | |
414 | } | |
415 | err = get_cur_mix_raw(cval, channel, value); | |
416 | if (err < 0) { | |
417 | if (!cval->mixer->ignore_ctl_error) | |
0ba41d91 TI |
418 | usb_audio_dbg(cval->mixer->chip, |
419 | "cannot get current value for control %d ch %d: err = %d\n", | |
641b4879 TI |
420 | cval->control, channel, err); |
421 | return err; | |
422 | } | |
423 | cval->cached |= 1 << channel; | |
424 | cval->cache_val[index] = *value; | |
425 | return 0; | |
426 | } | |
427 | ||
428 | ||
1da177e4 LT |
429 | /* |
430 | * set a mixer value | |
431 | */ | |
432 | ||
7b1eda22 DM |
433 | int snd_usb_mixer_set_ctl_value(struct usb_mixer_elem_info *cval, |
434 | int request, int validx, int value_set) | |
1da177e4 | 435 | { |
3d8d4dcf | 436 | struct snd_usb_audio *chip = cval->mixer->chip; |
1da177e4 | 437 | unsigned char buf[2]; |
978520b7 | 438 | int idx = 0, val_len, err, timeout = 10; |
23caaf19 | 439 | |
9f814105 EZ |
440 | validx += cval->idx_off; |
441 | ||
23caaf19 DM |
442 | if (cval->mixer->protocol == UAC_VERSION_1) { |
443 | val_len = cval->val_type >= USB_MIXER_S16 ? 2 : 1; | |
444 | } else { /* UAC_VERSION_2 */ | |
445 | /* audio class v2 controls are always 2 bytes in size */ | |
446 | val_len = sizeof(__u16); | |
447 | ||
448 | /* FIXME */ | |
449 | if (request != UAC_SET_CUR) { | |
0ba41d91 | 450 | usb_audio_dbg(chip, "RANGE setting not yet supported\n"); |
23caaf19 DM |
451 | return -EINVAL; |
452 | } | |
453 | ||
454 | request = UAC2_CS_CUR; | |
455 | } | |
1da177e4 LT |
456 | |
457 | value_set = convert_bytes_value(cval, value_set); | |
458 | buf[0] = value_set & 0xff; | |
459 | buf[1] = (value_set >> 8) & 0xff; | |
88a8516a ON |
460 | err = snd_usb_autoresume(chip); |
461 | if (err < 0) | |
462 | return -EIO; | |
34f3c89f | 463 | down_read(&chip->shutdown_rwsem); |
978520b7 TI |
464 | while (timeout-- > 0) { |
465 | if (chip->shutdown) | |
466 | break; | |
467 | idx = snd_usb_ctrl_intf(chip) | (cval->id << 8); | |
3d8d4dcf DM |
468 | if (snd_usb_ctl_msg(chip->dev, |
469 | usb_sndctrlpipe(chip->dev, 0), request, | |
1da177e4 | 470 | USB_RECIP_INTERFACE | USB_TYPE_CLASS | USB_DIR_OUT, |
978520b7 TI |
471 | validx, idx, buf, val_len) >= 0) { |
472 | err = 0; | |
473 | goto out; | |
88a8516a | 474 | } |
978520b7 | 475 | } |
0ba41d91 | 476 | usb_audio_dbg(chip, "cannot set ctl value: req = %#x, wValue = %#x, wIndex = %#x, type = %d, data = %#x/%#x\n", |
978520b7 TI |
477 | request, validx, idx, cval->val_type, buf[0], buf[1]); |
478 | err = -EINVAL; | |
479 | ||
480 | out: | |
34f3c89f | 481 | up_read(&chip->shutdown_rwsem); |
978520b7 TI |
482 | snd_usb_autosuspend(chip); |
483 | return err; | |
1da177e4 LT |
484 | } |
485 | ||
86e07d34 | 486 | static int set_cur_ctl_value(struct usb_mixer_elem_info *cval, int validx, int value) |
1da177e4 | 487 | { |
7b1eda22 | 488 | return snd_usb_mixer_set_ctl_value(cval, UAC_SET_CUR, validx, value); |
1da177e4 LT |
489 | } |
490 | ||
641b4879 TI |
491 | static int set_cur_mix_value(struct usb_mixer_elem_info *cval, int channel, |
492 | int index, int value) | |
1da177e4 | 493 | { |
641b4879 | 494 | int err; |
a6a33259 DM |
495 | unsigned int read_only = (channel == 0) ? |
496 | cval->master_readonly : | |
497 | cval->ch_readonly & (1 << (channel - 1)); | |
498 | ||
499 | if (read_only) { | |
0ba41d91 TI |
500 | usb_audio_dbg(cval->mixer->chip, |
501 | "%s(): channel %d of control %d is read_only\n", | |
a6a33259 DM |
502 | __func__, channel, cval->control); |
503 | return 0; | |
504 | } | |
505 | ||
7b1eda22 | 506 | err = snd_usb_mixer_set_ctl_value(cval, UAC_SET_CUR, (cval->control << 8) | channel, |
641b4879 TI |
507 | value); |
508 | if (err < 0) | |
509 | return err; | |
510 | cval->cached |= 1 << channel; | |
511 | cval->cache_val[index] = value; | |
512 | return 0; | |
1da177e4 LT |
513 | } |
514 | ||
7bc5ba7e TI |
515 | /* |
516 | * TLV callback for mixer volume controls | |
517 | */ | |
285de9c0 | 518 | int snd_usb_mixer_vol_tlv(struct snd_kcontrol *kcontrol, int op_flag, |
7bc5ba7e TI |
519 | unsigned int size, unsigned int __user *_tlv) |
520 | { | |
521 | struct usb_mixer_elem_info *cval = kcontrol->private_data; | |
b8e1c73f | 522 | DECLARE_TLV_DB_MINMAX(scale, 0, 0); |
7bc5ba7e TI |
523 | |
524 | if (size < sizeof(scale)) | |
525 | return -ENOMEM; | |
c3a3e040 JK |
526 | scale[2] = cval->dBmin; |
527 | scale[3] = cval->dBmax; | |
7bc5ba7e TI |
528 | if (copy_to_user(_tlv, scale, sizeof(scale))) |
529 | return -EFAULT; | |
530 | return 0; | |
531 | } | |
1da177e4 LT |
532 | |
533 | /* | |
534 | * parser routines begin here... | |
535 | */ | |
536 | ||
86e07d34 | 537 | static int parse_audio_unit(struct mixer_build *state, int unitid); |
1da177e4 LT |
538 | |
539 | ||
540 | /* | |
541 | * check if the input/output channel routing is enabled on the given bitmap. | |
542 | * used for mixer unit parser | |
543 | */ | |
544 | static int check_matrix_bitmap(unsigned char *bmap, int ich, int och, int num_outs) | |
545 | { | |
546 | int idx = ich * num_outs + och; | |
547 | return bmap[idx >> 3] & (0x80 >> (idx & 7)); | |
548 | } | |
549 | ||
550 | ||
551 | /* | |
552 | * add an alsa control element | |
553 | * search and increment the index until an empty slot is found. | |
554 | * | |
555 | * if failed, give up and free the control instance. | |
556 | */ | |
557 | ||
ef9d5970 DM |
558 | int snd_usb_mixer_add_control(struct usb_mixer_interface *mixer, |
559 | struct snd_kcontrol *kctl) | |
1da177e4 | 560 | { |
86e07d34 | 561 | struct usb_mixer_elem_info *cval = kctl->private_data; |
1da177e4 | 562 | int err; |
84957a8a | 563 | |
ef9d5970 | 564 | while (snd_ctl_find_id(mixer->chip->card, &kctl->id)) |
1da177e4 | 565 | kctl->id.index++; |
ef9d5970 | 566 | if ((err = snd_ctl_add(mixer->chip->card, kctl)) < 0) { |
0ba41d91 | 567 | usb_audio_dbg(mixer->chip, "cannot add control (err = %d)\n", err); |
6639b6c2 | 568 | return err; |
1da177e4 | 569 | } |
6639b6c2 | 570 | cval->elem_id = &kctl->id; |
ef9d5970 DM |
571 | cval->next_id_elem = mixer->id_elems[cval->id]; |
572 | mixer->id_elems[cval->id] = cval; | |
6639b6c2 | 573 | return 0; |
1da177e4 LT |
574 | } |
575 | ||
576 | ||
577 | /* | |
578 | * get a terminal name string | |
579 | */ | |
580 | ||
581 | static struct iterm_name_combo { | |
582 | int type; | |
583 | char *name; | |
584 | } iterm_names[] = { | |
585 | { 0x0300, "Output" }, | |
586 | { 0x0301, "Speaker" }, | |
587 | { 0x0302, "Headphone" }, | |
588 | { 0x0303, "HMD Audio" }, | |
589 | { 0x0304, "Desktop Speaker" }, | |
590 | { 0x0305, "Room Speaker" }, | |
591 | { 0x0306, "Com Speaker" }, | |
592 | { 0x0307, "LFE" }, | |
593 | { 0x0600, "External In" }, | |
594 | { 0x0601, "Analog In" }, | |
595 | { 0x0602, "Digital In" }, | |
596 | { 0x0603, "Line" }, | |
597 | { 0x0604, "Legacy In" }, | |
598 | { 0x0605, "IEC958 In" }, | |
599 | { 0x0606, "1394 DA Stream" }, | |
600 | { 0x0607, "1394 DV Stream" }, | |
601 | { 0x0700, "Embedded" }, | |
602 | { 0x0701, "Noise Source" }, | |
603 | { 0x0702, "Equalization Noise" }, | |
604 | { 0x0703, "CD" }, | |
605 | { 0x0704, "DAT" }, | |
606 | { 0x0705, "DCC" }, | |
607 | { 0x0706, "MiniDisk" }, | |
608 | { 0x0707, "Analog Tape" }, | |
609 | { 0x0708, "Phonograph" }, | |
610 | { 0x0709, "VCR Audio" }, | |
611 | { 0x070a, "Video Disk Audio" }, | |
612 | { 0x070b, "DVD Audio" }, | |
613 | { 0x070c, "TV Tuner Audio" }, | |
614 | { 0x070d, "Satellite Rec Audio" }, | |
615 | { 0x070e, "Cable Tuner Audio" }, | |
616 | { 0x070f, "DSS Audio" }, | |
617 | { 0x0710, "Radio Receiver" }, | |
618 | { 0x0711, "Radio Transmitter" }, | |
619 | { 0x0712, "Multi-Track Recorder" }, | |
620 | { 0x0713, "Synthesizer" }, | |
621 | { 0 }, | |
622 | }; | |
623 | ||
86e07d34 | 624 | static int get_term_name(struct mixer_build *state, struct usb_audio_term *iterm, |
1da177e4 LT |
625 | unsigned char *name, int maxlen, int term_only) |
626 | { | |
627 | struct iterm_name_combo *names; | |
628 | ||
629 | if (iterm->name) | |
630 | return snd_usb_copy_string_desc(state, iterm->name, name, maxlen); | |
631 | ||
632 | /* virtual type - not a real terminal */ | |
633 | if (iterm->type >> 16) { | |
634 | if (term_only) | |
635 | return 0; | |
636 | switch (iterm->type >> 16) { | |
de48c7bc | 637 | case UAC_SELECTOR_UNIT: |
1da177e4 | 638 | strcpy(name, "Selector"); return 8; |
69da9bcb | 639 | case UAC1_PROCESSING_UNIT: |
1da177e4 | 640 | strcpy(name, "Process Unit"); return 12; |
69da9bcb | 641 | case UAC1_EXTENSION_UNIT: |
1da177e4 | 642 | strcpy(name, "Ext Unit"); return 8; |
de48c7bc | 643 | case UAC_MIXER_UNIT: |
1da177e4 LT |
644 | strcpy(name, "Mixer"); return 5; |
645 | default: | |
646 | return sprintf(name, "Unit %d", iterm->id); | |
647 | } | |
648 | } | |
649 | ||
650 | switch (iterm->type & 0xff00) { | |
651 | case 0x0100: | |
652 | strcpy(name, "PCM"); return 3; | |
653 | case 0x0200: | |
654 | strcpy(name, "Mic"); return 3; | |
655 | case 0x0400: | |
656 | strcpy(name, "Headset"); return 7; | |
657 | case 0x0500: | |
658 | strcpy(name, "Phone"); return 5; | |
659 | } | |
660 | ||
661 | for (names = iterm_names; names->type; names++) | |
662 | if (names->type == iterm->type) { | |
663 | strcpy(name, names->name); | |
664 | return strlen(names->name); | |
665 | } | |
666 | return 0; | |
667 | } | |
668 | ||
669 | ||
670 | /* | |
671 | * parse the source unit recursively until it reaches to a terminal | |
672 | * or a branched unit. | |
673 | */ | |
86e07d34 | 674 | static int check_input_term(struct mixer_build *state, int id, struct usb_audio_term *term) |
1da177e4 | 675 | { |
09414207 | 676 | int err; |
23caaf19 | 677 | void *p1; |
1da177e4 LT |
678 | |
679 | memset(term, 0, sizeof(*term)); | |
680 | while ((p1 = find_audio_control_unit(state, id)) != NULL) { | |
23caaf19 | 681 | unsigned char *hdr = p1; |
1da177e4 | 682 | term->id = id; |
23caaf19 | 683 | switch (hdr[2]) { |
de48c7bc | 684 | case UAC_INPUT_TERMINAL: |
23caaf19 DM |
685 | if (state->mixer->protocol == UAC_VERSION_1) { |
686 | struct uac_input_terminal_descriptor *d = p1; | |
687 | term->type = le16_to_cpu(d->wTerminalType); | |
688 | term->channels = d->bNrChannels; | |
689 | term->chconfig = le16_to_cpu(d->wChannelConfig); | |
690 | term->name = d->iTerminal; | |
691 | } else { /* UAC_VERSION_2 */ | |
692 | struct uac2_input_terminal_descriptor *d = p1; | |
693 | term->type = le16_to_cpu(d->wTerminalType); | |
694 | term->channels = d->bNrChannels; | |
695 | term->chconfig = le32_to_cpu(d->bmChannelConfig); | |
696 | term->name = d->iTerminal; | |
09414207 DM |
697 | |
698 | /* call recursively to get the clock selectors */ | |
699 | err = check_input_term(state, d->bCSourceID, term); | |
700 | if (err < 0) | |
701 | return err; | |
23caaf19 | 702 | } |
1da177e4 | 703 | return 0; |
23caaf19 DM |
704 | case UAC_FEATURE_UNIT: { |
705 | /* the header is the same for v1 and v2 */ | |
706 | struct uac_feature_unit_descriptor *d = p1; | |
5e688883 | 707 | id = d->bSourceID; |
1da177e4 | 708 | break; /* continue to parse */ |
23caaf19 DM |
709 | } |
710 | case UAC_MIXER_UNIT: { | |
711 | struct uac_mixer_unit_descriptor *d = p1; | |
712 | term->type = d->bDescriptorSubtype << 16; /* virtual type */ | |
713 | term->channels = uac_mixer_unit_bNrChannels(d); | |
714 | term->chconfig = uac_mixer_unit_wChannelConfig(d, state->mixer->protocol); | |
715 | term->name = uac_mixer_unit_iMixer(d); | |
1da177e4 | 716 | return 0; |
23caaf19 | 717 | } |
09414207 DM |
718 | case UAC_SELECTOR_UNIT: |
719 | case UAC2_CLOCK_SELECTOR: { | |
23caaf19 | 720 | struct uac_selector_unit_descriptor *d = p1; |
1da177e4 | 721 | /* call recursively to retrieve the channel info */ |
4d7b86c9 DM |
722 | err = check_input_term(state, d->baSourceID[0], term); |
723 | if (err < 0) | |
724 | return err; | |
23caaf19 | 725 | term->type = d->bDescriptorSubtype << 16; /* virtual type */ |
1da177e4 | 726 | term->id = id; |
23caaf19 | 727 | term->name = uac_selector_unit_iSelector(d); |
1da177e4 | 728 | return 0; |
23caaf19 | 729 | } |
69da9bcb | 730 | case UAC1_PROCESSING_UNIT: |
5dae5fd2 EZ |
731 | case UAC1_EXTENSION_UNIT: |
732 | /* UAC2_PROCESSING_UNIT_V2 */ | |
61ac5130 TH |
733 | /* UAC2_EFFECT_UNIT */ |
734 | case UAC2_EXTENSION_UNIT_V2: { | |
23caaf19 | 735 | struct uac_processing_unit_descriptor *d = p1; |
5dae5fd2 EZ |
736 | |
737 | if (state->mixer->protocol == UAC_VERSION_2 && | |
738 | hdr[2] == UAC2_EFFECT_UNIT) { | |
739 | /* UAC2/UAC1 unit IDs overlap here in an | |
740 | * uncompatible way. Ignore this unit for now. | |
741 | */ | |
742 | return 0; | |
743 | } | |
744 | ||
23caaf19 DM |
745 | if (d->bNrInPins) { |
746 | id = d->baSourceID[0]; | |
1da177e4 LT |
747 | break; /* continue to parse */ |
748 | } | |
23caaf19 DM |
749 | term->type = d->bDescriptorSubtype << 16; /* virtual type */ |
750 | term->channels = uac_processing_unit_bNrChannels(d); | |
751 | term->chconfig = uac_processing_unit_wChannelConfig(d, state->mixer->protocol); | |
752 | term->name = uac_processing_unit_iProcessing(d, state->mixer->protocol); | |
1da177e4 | 753 | return 0; |
23caaf19 | 754 | } |
09414207 DM |
755 | case UAC2_CLOCK_SOURCE: { |
756 | struct uac_clock_source_descriptor *d = p1; | |
757 | term->type = d->bDescriptorSubtype << 16; /* virtual type */ | |
758 | term->id = id; | |
759 | term->name = d->iClockSource; | |
760 | return 0; | |
761 | } | |
1da177e4 LT |
762 | default: |
763 | return -ENODEV; | |
764 | } | |
765 | } | |
766 | return -ENODEV; | |
767 | } | |
768 | ||
769 | ||
770 | /* | |
771 | * Feature Unit | |
772 | */ | |
773 | ||
774 | /* feature unit control information */ | |
775 | struct usb_feature_control_info { | |
776 | const char *name; | |
777 | unsigned int type; /* control type (mute, volume, etc.) */ | |
778 | }; | |
779 | ||
780 | static struct usb_feature_control_info audio_feature_info[] = { | |
2e0281d1 DM |
781 | { "Mute", USB_MIXER_INV_BOOLEAN }, |
782 | { "Volume", USB_MIXER_S16 }, | |
1da177e4 LT |
783 | { "Tone Control - Bass", USB_MIXER_S8 }, |
784 | { "Tone Control - Mid", USB_MIXER_S8 }, | |
785 | { "Tone Control - Treble", USB_MIXER_S8 }, | |
786 | { "Graphic Equalizer", USB_MIXER_S8 }, /* FIXME: not implemeted yet */ | |
2e0281d1 DM |
787 | { "Auto Gain Control", USB_MIXER_BOOLEAN }, |
788 | { "Delay Control", USB_MIXER_U16 }, | |
789 | { "Bass Boost", USB_MIXER_BOOLEAN }, | |
790 | { "Loudness", USB_MIXER_BOOLEAN }, | |
791 | /* UAC2 specific */ | |
792 | { "Input Gain Control", USB_MIXER_U16 }, | |
793 | { "Input Gain Pad Control", USB_MIXER_BOOLEAN }, | |
794 | { "Phase Inverter Control", USB_MIXER_BOOLEAN }, | |
1da177e4 LT |
795 | }; |
796 | ||
797 | ||
798 | /* private_free callback */ | |
86e07d34 | 799 | static void usb_mixer_elem_free(struct snd_kcontrol *kctl) |
1da177e4 | 800 | { |
4d572776 JJ |
801 | kfree(kctl->private_data); |
802 | kctl->private_data = NULL; | |
1da177e4 LT |
803 | } |
804 | ||
805 | ||
806 | /* | |
807 | * interface to ALSA control for feature/mixer units | |
808 | */ | |
809 | ||
dcaaf9f2 TI |
810 | /* volume control quirks */ |
811 | static void volume_control_quirks(struct usb_mixer_elem_info *cval, | |
812 | struct snd_kcontrol *kctl) | |
813 | { | |
0ba41d91 TI |
814 | struct snd_usb_audio *chip = cval->mixer->chip; |
815 | switch (chip->usb_id) { | |
d50ed624 | 816 | case USB_ID(0x0763, 0x2030): /* M-Audio Fast Track C400 */ |
e9a25e04 | 817 | case USB_ID(0x0763, 0x2031): /* M-Audio Fast Track C600 */ |
d50ed624 EZ |
818 | if (strcmp(kctl->id.name, "Effect Duration") == 0) { |
819 | cval->min = 0x0000; | |
820 | cval->max = 0xffff; | |
821 | cval->res = 0x00e6; | |
822 | break; | |
823 | } | |
824 | if (strcmp(kctl->id.name, "Effect Volume") == 0 || | |
825 | strcmp(kctl->id.name, "Effect Feedback Volume") == 0) { | |
826 | cval->min = 0x00; | |
827 | cval->max = 0xff; | |
828 | break; | |
829 | } | |
830 | if (strstr(kctl->id.name, "Effect Return") != NULL) { | |
831 | cval->min = 0xb706; | |
832 | cval->max = 0xff7b; | |
833 | cval->res = 0x0073; | |
834 | break; | |
835 | } | |
836 | if ((strstr(kctl->id.name, "Playback Volume") != NULL) || | |
837 | (strstr(kctl->id.name, "Effect Send") != NULL)) { | |
838 | cval->min = 0xb5fb; /* -73 dB = 0xb6ff */ | |
839 | cval->max = 0xfcfe; | |
840 | cval->res = 0x0073; | |
841 | } | |
842 | break; | |
843 | ||
d34bf148 FH |
844 | case USB_ID(0x0763, 0x2081): /* M-Audio Fast Track Ultra 8R */ |
845 | case USB_ID(0x0763, 0x2080): /* M-Audio Fast Track Ultra */ | |
846 | if (strcmp(kctl->id.name, "Effect Duration") == 0) { | |
0ba41d91 TI |
847 | usb_audio_info(chip, |
848 | "set quirk for FTU Effect Duration\n"); | |
d34bf148 FH |
849 | cval->min = 0x0000; |
850 | cval->max = 0x7f00; | |
851 | cval->res = 0x0100; | |
852 | break; | |
853 | } | |
854 | if (strcmp(kctl->id.name, "Effect Volume") == 0 || | |
855 | strcmp(kctl->id.name, "Effect Feedback Volume") == 0) { | |
0ba41d91 TI |
856 | usb_audio_info(chip, |
857 | "set quirks for FTU Effect Feedback/Volume\n"); | |
d34bf148 FH |
858 | cval->min = 0x00; |
859 | cval->max = 0x7f; | |
860 | break; | |
861 | } | |
862 | break; | |
863 | ||
dcaaf9f2 TI |
864 | case USB_ID(0x0471, 0x0101): |
865 | case USB_ID(0x0471, 0x0104): | |
866 | case USB_ID(0x0471, 0x0105): | |
867 | case USB_ID(0x0672, 0x1041): | |
868 | /* quirk for UDA1321/N101. | |
869 | * note that detection between firmware 2.1.1.7 (N101) | |
870 | * and later 2.1.1.21 is not very clear from datasheets. | |
871 | * I hope that the min value is -15360 for newer firmware --jk | |
872 | */ | |
873 | if (!strcmp(kctl->id.name, "PCM Playback Volume") && | |
874 | cval->min == -15616) { | |
0ba41d91 | 875 | usb_audio_info(chip, |
dcaaf9f2 TI |
876 | "set volume quirk for UDA1321/N101 chip\n"); |
877 | cval->max = -256; | |
878 | } | |
879 | break; | |
880 | ||
881 | case USB_ID(0x046d, 0x09a4): | |
882 | if (!strcmp(kctl->id.name, "Mic Capture Volume")) { | |
0ba41d91 | 883 | usb_audio_info(chip, |
dcaaf9f2 TI |
884 | "set volume quirk for QuickCam E3500\n"); |
885 | cval->min = 6080; | |
886 | cval->max = 8768; | |
887 | cval->res = 192; | |
888 | } | |
889 | break; | |
890 | ||
891 | case USB_ID(0x046d, 0x0808): | |
892 | case USB_ID(0x046d, 0x0809): | |
36691e1b | 893 | case USB_ID(0x046d, 0x081b): /* HD Webcam c310 */ |
55c0008b | 894 | case USB_ID(0x046d, 0x081d): /* HD Webcam c510 */ |
11e7064f | 895 | case USB_ID(0x046d, 0x0825): /* HD Webcam c270 */ |
140d37de | 896 | case USB_ID(0x046d, 0x0826): /* HD Webcam c525 */ |
dcaaf9f2 TI |
897 | case USB_ID(0x046d, 0x0991): |
898 | /* Most audio usb devices lie about volume resolution. | |
899 | * Most Logitech webcams have res = 384. | |
900 | * Proboly there is some logitech magic behind this number --fishor | |
901 | */ | |
902 | if (!strcmp(kctl->id.name, "Mic Capture Volume")) { | |
0ba41d91 | 903 | usb_audio_info(chip, |
dcaaf9f2 TI |
904 | "set resolution quirk: cval->res = 384\n"); |
905 | cval->res = 384; | |
906 | } | |
907 | break; | |
908 | ||
909 | } | |
910 | } | |
911 | ||
1da177e4 LT |
912 | /* |
913 | * retrieve the minimum and maximum values for the specified control | |
914 | */ | |
dcaaf9f2 TI |
915 | static int get_min_max_with_quirks(struct usb_mixer_elem_info *cval, |
916 | int default_min, struct snd_kcontrol *kctl) | |
1da177e4 LT |
917 | { |
918 | /* for failsafe */ | |
919 | cval->min = default_min; | |
920 | cval->max = cval->min + 1; | |
921 | cval->res = 1; | |
c3a3e040 | 922 | cval->dBmin = cval->dBmax = 0; |
1da177e4 LT |
923 | |
924 | if (cval->val_type == USB_MIXER_BOOLEAN || | |
925 | cval->val_type == USB_MIXER_INV_BOOLEAN) { | |
926 | cval->initialized = 1; | |
927 | } else { | |
928 | int minchn = 0; | |
929 | if (cval->cmask) { | |
930 | int i; | |
931 | for (i = 0; i < MAX_CHANNELS; i++) | |
932 | if (cval->cmask & (1 << i)) { | |
933 | minchn = i + 1; | |
934 | break; | |
935 | } | |
936 | } | |
de48c7bc DM |
937 | if (get_ctl_value(cval, UAC_GET_MAX, (cval->control << 8) | minchn, &cval->max) < 0 || |
938 | get_ctl_value(cval, UAC_GET_MIN, (cval->control << 8) | minchn, &cval->min) < 0) { | |
0ba41d91 TI |
939 | usb_audio_err(cval->mixer->chip, |
940 | "%d:%d: cannot get min/max values for control %d (id %d)\n", | |
1a4e34e6 | 941 | cval->id, snd_usb_ctrl_intf(cval->mixer->chip), cval->control, cval->id); |
1da177e4 LT |
942 | return -EINVAL; |
943 | } | |
de48c7bc | 944 | if (get_ctl_value(cval, UAC_GET_RES, (cval->control << 8) | minchn, &cval->res) < 0) { |
1da177e4 LT |
945 | cval->res = 1; |
946 | } else { | |
947 | int last_valid_res = cval->res; | |
948 | ||
949 | while (cval->res > 1) { | |
7b1eda22 DM |
950 | if (snd_usb_mixer_set_ctl_value(cval, UAC_SET_RES, |
951 | (cval->control << 8) | minchn, cval->res / 2) < 0) | |
1da177e4 LT |
952 | break; |
953 | cval->res /= 2; | |
954 | } | |
de48c7bc | 955 | if (get_ctl_value(cval, UAC_GET_RES, (cval->control << 8) | minchn, &cval->res) < 0) |
1da177e4 LT |
956 | cval->res = last_valid_res; |
957 | } | |
958 | if (cval->res == 0) | |
959 | cval->res = 1; | |
14790f1c TI |
960 | |
961 | /* Additional checks for the proper resolution | |
962 | * | |
963 | * Some devices report smaller resolutions than actually | |
964 | * reacting. They don't return errors but simply clip | |
965 | * to the lower aligned value. | |
966 | */ | |
967 | if (cval->min + cval->res < cval->max) { | |
968 | int last_valid_res = cval->res; | |
969 | int saved, test, check; | |
641b4879 | 970 | get_cur_mix_raw(cval, minchn, &saved); |
14790f1c TI |
971 | for (;;) { |
972 | test = saved; | |
973 | if (test < cval->max) | |
974 | test += cval->res; | |
975 | else | |
976 | test -= cval->res; | |
977 | if (test < cval->min || test > cval->max || | |
641b4879 TI |
978 | set_cur_mix_value(cval, minchn, 0, test) || |
979 | get_cur_mix_raw(cval, minchn, &check)) { | |
14790f1c TI |
980 | cval->res = last_valid_res; |
981 | break; | |
982 | } | |
983 | if (test == check) | |
984 | break; | |
985 | cval->res *= 2; | |
986 | } | |
641b4879 | 987 | set_cur_mix_value(cval, minchn, 0, saved); |
14790f1c TI |
988 | } |
989 | ||
1da177e4 LT |
990 | cval->initialized = 1; |
991 | } | |
c3a3e040 | 992 | |
dcaaf9f2 TI |
993 | if (kctl) |
994 | volume_control_quirks(cval, kctl); | |
995 | ||
c3a3e040 JK |
996 | /* USB descriptions contain the dB scale in 1/256 dB unit |
997 | * while ALSA TLV contains in 1/100 dB unit | |
998 | */ | |
999 | cval->dBmin = (convert_signed_value(cval, cval->min) * 100) / 256; | |
1000 | cval->dBmax = (convert_signed_value(cval, cval->max) * 100) / 256; | |
1001 | if (cval->dBmin > cval->dBmax) { | |
1002 | /* something is wrong; assume it's either from/to 0dB */ | |
1003 | if (cval->dBmin < 0) | |
1004 | cval->dBmax = 0; | |
1005 | else if (cval->dBmin > 0) | |
1006 | cval->dBmin = 0; | |
1007 | if (cval->dBmin > cval->dBmax) { | |
1008 | /* totally crap, return an error */ | |
1009 | return -EINVAL; | |
1010 | } | |
1011 | } | |
1012 | ||
1da177e4 LT |
1013 | return 0; |
1014 | } | |
1015 | ||
dcaaf9f2 | 1016 | #define get_min_max(cval, def) get_min_max_with_quirks(cval, def, NULL) |
1da177e4 LT |
1017 | |
1018 | /* get a feature/mixer unit info */ | |
86e07d34 | 1019 | static int mixer_ctl_feature_info(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo) |
1da177e4 | 1020 | { |
86e07d34 | 1021 | struct usb_mixer_elem_info *cval = kcontrol->private_data; |
1da177e4 LT |
1022 | |
1023 | if (cval->val_type == USB_MIXER_BOOLEAN || | |
1024 | cval->val_type == USB_MIXER_INV_BOOLEAN) | |
1025 | uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN; | |
1026 | else | |
1027 | uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER; | |
1028 | uinfo->count = cval->channels; | |
1029 | if (cval->val_type == USB_MIXER_BOOLEAN || | |
1030 | cval->val_type == USB_MIXER_INV_BOOLEAN) { | |
1031 | uinfo->value.integer.min = 0; | |
1032 | uinfo->value.integer.max = 1; | |
1033 | } else { | |
9fcd0ab1 | 1034 | if (!cval->initialized) { |
dcaaf9f2 | 1035 | get_min_max_with_quirks(cval, 0, kcontrol); |
9fcd0ab1 TI |
1036 | if (cval->initialized && cval->dBmin >= cval->dBmax) { |
1037 | kcontrol->vd[0].access &= | |
1038 | ~(SNDRV_CTL_ELEM_ACCESS_TLV_READ | | |
1039 | SNDRV_CTL_ELEM_ACCESS_TLV_CALLBACK); | |
1040 | snd_ctl_notify(cval->mixer->chip->card, | |
1041 | SNDRV_CTL_EVENT_MASK_INFO, | |
1042 | &kcontrol->id); | |
1043 | } | |
1044 | } | |
1da177e4 | 1045 | uinfo->value.integer.min = 0; |
14790f1c TI |
1046 | uinfo->value.integer.max = |
1047 | (cval->max - cval->min + cval->res - 1) / cval->res; | |
1da177e4 LT |
1048 | } |
1049 | return 0; | |
1050 | } | |
1051 | ||
1052 | /* get the current value from feature/mixer unit */ | |
86e07d34 | 1053 | static int mixer_ctl_feature_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) |
1da177e4 | 1054 | { |
86e07d34 | 1055 | struct usb_mixer_elem_info *cval = kcontrol->private_data; |
1da177e4 LT |
1056 | int c, cnt, val, err; |
1057 | ||
641b4879 | 1058 | ucontrol->value.integer.value[0] = cval->min; |
1da177e4 LT |
1059 | if (cval->cmask) { |
1060 | cnt = 0; | |
1061 | for (c = 0; c < MAX_CHANNELS; c++) { | |
641b4879 TI |
1062 | if (!(cval->cmask & (1 << c))) |
1063 | continue; | |
1064 | err = get_cur_mix_value(cval, c + 1, cnt, &val); | |
1065 | if (err < 0) | |
1066 | return cval->mixer->ignore_ctl_error ? 0 : err; | |
1067 | val = get_relative_value(cval, val); | |
1068 | ucontrol->value.integer.value[cnt] = val; | |
1069 | cnt++; | |
1da177e4 | 1070 | } |
641b4879 | 1071 | return 0; |
1da177e4 LT |
1072 | } else { |
1073 | /* master channel */ | |
641b4879 TI |
1074 | err = get_cur_mix_value(cval, 0, 0, &val); |
1075 | if (err < 0) | |
1076 | return cval->mixer->ignore_ctl_error ? 0 : err; | |
1da177e4 LT |
1077 | val = get_relative_value(cval, val); |
1078 | ucontrol->value.integer.value[0] = val; | |
1079 | } | |
1080 | return 0; | |
1081 | } | |
1082 | ||
1083 | /* put the current value to feature/mixer unit */ | |
86e07d34 | 1084 | static int mixer_ctl_feature_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) |
1da177e4 | 1085 | { |
86e07d34 | 1086 | struct usb_mixer_elem_info *cval = kcontrol->private_data; |
1da177e4 LT |
1087 | int c, cnt, val, oval, err; |
1088 | int changed = 0; | |
1089 | ||
1090 | if (cval->cmask) { | |
1091 | cnt = 0; | |
1092 | for (c = 0; c < MAX_CHANNELS; c++) { | |
641b4879 TI |
1093 | if (!(cval->cmask & (1 << c))) |
1094 | continue; | |
1095 | err = get_cur_mix_value(cval, c + 1, cnt, &oval); | |
1096 | if (err < 0) | |
1097 | return cval->mixer->ignore_ctl_error ? 0 : err; | |
1098 | val = ucontrol->value.integer.value[cnt]; | |
1099 | val = get_abs_value(cval, val); | |
1100 | if (oval != val) { | |
1101 | set_cur_mix_value(cval, c + 1, cnt, val); | |
1102 | changed = 1; | |
1da177e4 | 1103 | } |
641b4879 | 1104 | cnt++; |
1da177e4 LT |
1105 | } |
1106 | } else { | |
1107 | /* master channel */ | |
641b4879 | 1108 | err = get_cur_mix_value(cval, 0, 0, &oval); |
1da177e4 | 1109 | if (err < 0) |
641b4879 | 1110 | return cval->mixer->ignore_ctl_error ? 0 : err; |
1da177e4 LT |
1111 | val = ucontrol->value.integer.value[0]; |
1112 | val = get_abs_value(cval, val); | |
1113 | if (val != oval) { | |
641b4879 | 1114 | set_cur_mix_value(cval, 0, 0, val); |
1da177e4 LT |
1115 | changed = 1; |
1116 | } | |
1117 | } | |
1118 | return changed; | |
1119 | } | |
1120 | ||
86e07d34 | 1121 | static struct snd_kcontrol_new usb_feature_unit_ctl = { |
1da177e4 LT |
1122 | .iface = SNDRV_CTL_ELEM_IFACE_MIXER, |
1123 | .name = "", /* will be filled later manually */ | |
1124 | .info = mixer_ctl_feature_info, | |
1125 | .get = mixer_ctl_feature_get, | |
1126 | .put = mixer_ctl_feature_put, | |
1127 | }; | |
1128 | ||
23caaf19 DM |
1129 | /* the read-only variant */ |
1130 | static struct snd_kcontrol_new usb_feature_unit_ctl_ro = { | |
1131 | .iface = SNDRV_CTL_ELEM_IFACE_MIXER, | |
1132 | .name = "", /* will be filled later manually */ | |
1133 | .info = mixer_ctl_feature_info, | |
1134 | .get = mixer_ctl_feature_get, | |
1135 | .put = NULL, | |
1136 | }; | |
1137 | ||
9e38658f DM |
1138 | /* This symbol is exported in order to allow the mixer quirks to |
1139 | * hook up to the standard feature unit control mechanism */ | |
1140 | struct snd_kcontrol_new *snd_usb_feature_unit_ctl = &usb_feature_unit_ctl; | |
1da177e4 LT |
1141 | |
1142 | /* | |
1143 | * build a feature control | |
1144 | */ | |
1145 | ||
08d1e635 TI |
1146 | static size_t append_ctl_name(struct snd_kcontrol *kctl, const char *str) |
1147 | { | |
1148 | return strlcat(kctl->id.name, str, sizeof(kctl->id.name)); | |
1149 | } | |
1150 | ||
9b4ef977 DH |
1151 | /* A lot of headsets/headphones have a "Speaker" mixer. Make sure we |
1152 | rename it to "Headphone". We determine if something is a headphone | |
1153 | similar to how udev determines form factor. */ | |
1154 | static void check_no_speaker_on_headset(struct snd_kcontrol *kctl, | |
1155 | struct snd_card *card) | |
1156 | { | |
1157 | const char *names_to_check[] = { | |
1158 | "Headset", "headset", "Headphone", "headphone", NULL}; | |
1159 | const char **s; | |
e0f17c75 | 1160 | bool found = false; |
9b4ef977 DH |
1161 | |
1162 | if (strcmp("Speaker", kctl->id.name)) | |
1163 | return; | |
1164 | ||
1165 | for (s = names_to_check; *s; s++) | |
1166 | if (strstr(card->shortname, *s)) { | |
e0f17c75 | 1167 | found = true; |
9b4ef977 DH |
1168 | break; |
1169 | } | |
1170 | ||
1171 | if (!found) | |
1172 | return; | |
1173 | ||
1174 | strlcpy(kctl->id.name, "Headphone", sizeof(kctl->id.name)); | |
1175 | } | |
1176 | ||
99fc8645 | 1177 | static void build_feature_ctl(struct mixer_build *state, void *raw_desc, |
1da177e4 | 1178 | unsigned int ctl_mask, int control, |
23caaf19 | 1179 | struct usb_audio_term *iterm, int unitid, |
a6a33259 | 1180 | int readonly_mask) |
1da177e4 | 1181 | { |
99fc8645 | 1182 | struct uac_feature_unit_descriptor *desc = raw_desc; |
1da177e4 LT |
1183 | unsigned int len = 0; |
1184 | int mapped_name = 0; | |
99fc8645 | 1185 | int nameid = uac_feature_unit_iFeature(desc); |
86e07d34 TI |
1186 | struct snd_kcontrol *kctl; |
1187 | struct usb_mixer_elem_info *cval; | |
c3a3e040 | 1188 | const struct usbmix_name_map *map; |
80acefff | 1189 | unsigned int range; |
1da177e4 LT |
1190 | |
1191 | control++; /* change from zero-based to 1-based value */ | |
1192 | ||
65f25da4 | 1193 | if (control == UAC_FU_GRAPHIC_EQUALIZER) { |
1da177e4 LT |
1194 | /* FIXME: not supported yet */ |
1195 | return; | |
1196 | } | |
1197 | ||
c3a3e040 JK |
1198 | map = find_map(state, unitid, control); |
1199 | if (check_ignored_ctl(map)) | |
1da177e4 LT |
1200 | return; |
1201 | ||
561b220a | 1202 | cval = kzalloc(sizeof(*cval), GFP_KERNEL); |
1da177e4 | 1203 | if (! cval) { |
0ba41d91 | 1204 | usb_audio_err(state->chip, "cannot malloc kcontrol\n"); |
1da177e4 LT |
1205 | return; |
1206 | } | |
84957a8a | 1207 | cval->mixer = state->mixer; |
1da177e4 LT |
1208 | cval->id = unitid; |
1209 | cval->control = control; | |
1210 | cval->cmask = ctl_mask; | |
1211 | cval->val_type = audio_feature_info[control-1].type; | |
a6a33259 | 1212 | if (ctl_mask == 0) { |
1da177e4 | 1213 | cval->channels = 1; /* master channel */ |
a6a33259 DM |
1214 | cval->master_readonly = readonly_mask; |
1215 | } else { | |
1da177e4 LT |
1216 | int i, c = 0; |
1217 | for (i = 0; i < 16; i++) | |
1218 | if (ctl_mask & (1 << i)) | |
1219 | c++; | |
1220 | cval->channels = c; | |
a6a33259 | 1221 | cval->ch_readonly = readonly_mask; |
1da177e4 LT |
1222 | } |
1223 | ||
a6a33259 DM |
1224 | /* if all channels in the mask are marked read-only, make the control |
1225 | * read-only. set_cur_mix_value() will check the mask again and won't | |
1226 | * issue write commands to read-only channels. */ | |
1227 | if (cval->channels == readonly_mask) | |
23caaf19 DM |
1228 | kctl = snd_ctl_new1(&usb_feature_unit_ctl_ro, cval); |
1229 | else | |
1230 | kctl = snd_ctl_new1(&usb_feature_unit_ctl, cval); | |
1231 | ||
1da177e4 | 1232 | if (! kctl) { |
0ba41d91 | 1233 | usb_audio_err(state->chip, "cannot malloc kcontrol\n"); |
1da177e4 LT |
1234 | kfree(cval); |
1235 | return; | |
1236 | } | |
1237 | kctl->private_free = usb_mixer_elem_free; | |
1238 | ||
c3a3e040 | 1239 | len = check_mapped_name(map, kctl->id.name, sizeof(kctl->id.name)); |
1da177e4 LT |
1240 | mapped_name = len != 0; |
1241 | if (! len && nameid) | |
c3a3e040 JK |
1242 | len = snd_usb_copy_string_desc(state, nameid, |
1243 | kctl->id.name, sizeof(kctl->id.name)); | |
1da177e4 LT |
1244 | |
1245 | switch (control) { | |
65f25da4 DM |
1246 | case UAC_FU_MUTE: |
1247 | case UAC_FU_VOLUME: | |
1da177e4 LT |
1248 | /* determine the control name. the rule is: |
1249 | * - if a name id is given in descriptor, use it. | |
1250 | * - if the connected input can be determined, then use the name | |
1251 | * of terminal type. | |
1252 | * - if the connected output can be determined, use it. | |
1253 | * - otherwise, anonymous name. | |
1254 | */ | |
1255 | if (! len) { | |
1256 | len = get_term_name(state, iterm, kctl->id.name, sizeof(kctl->id.name), 1); | |
1257 | if (! len) | |
1258 | len = get_term_name(state, &state->oterm, kctl->id.name, sizeof(kctl->id.name), 1); | |
1259 | if (! len) | |
1260 | len = snprintf(kctl->id.name, sizeof(kctl->id.name), | |
1261 | "Feature %d", unitid); | |
1262 | } | |
9b4ef977 DH |
1263 | |
1264 | if (!mapped_name) | |
1265 | check_no_speaker_on_headset(kctl, state->mixer->chip->card); | |
1266 | ||
1da177e4 LT |
1267 | /* determine the stream direction: |
1268 | * if the connected output is USB stream, then it's likely a | |
1269 | * capture stream. otherwise it should be playback (hopefully :) | |
1270 | */ | |
1271 | if (! mapped_name && ! (state->oterm.type >> 16)) { | |
1272 | if ((state->oterm.type & 0xff00) == 0x0100) { | |
08d1e635 | 1273 | len = append_ctl_name(kctl, " Capture"); |
1da177e4 | 1274 | } else { |
08d1e635 | 1275 | len = append_ctl_name(kctl, " Playback"); |
1da177e4 LT |
1276 | } |
1277 | } | |
65f25da4 | 1278 | append_ctl_name(kctl, control == UAC_FU_MUTE ? |
08d1e635 | 1279 | " Switch" : " Volume"); |
1da177e4 | 1280 | break; |
1da177e4 LT |
1281 | default: |
1282 | if (! len) | |
1283 | strlcpy(kctl->id.name, audio_feature_info[control-1].name, | |
1284 | sizeof(kctl->id.name)); | |
1285 | break; | |
1286 | } | |
1287 | ||
e182534d TI |
1288 | /* get min/max values */ |
1289 | get_min_max_with_quirks(cval, 0, kctl); | |
1290 | ||
1291 | if (control == UAC_FU_VOLUME) { | |
1292 | check_mapped_dB(map, cval); | |
1293 | if (cval->dBmin < cval->dBmax || !cval->initialized) { | |
1294 | kctl->tlv.c = snd_usb_mixer_vol_tlv; | |
1295 | kctl->vd[0].access |= | |
1296 | SNDRV_CTL_ELEM_ACCESS_TLV_READ | | |
1297 | SNDRV_CTL_ELEM_ACCESS_TLV_CALLBACK; | |
1298 | } | |
1299 | } | |
1300 | ||
80acefff AF |
1301 | range = (cval->max - cval->min) / cval->res; |
1302 | /* Are there devices with volume range more than 255? I use a bit more | |
1303 | * to be sure. 384 is a resolution magic number found on Logitech | |
1304 | * devices. It will definitively catch all buggy Logitech devices. | |
1305 | */ | |
1306 | if (range > 384) { | |
0ba41d91 | 1307 | usb_audio_warn(state->chip, "Warning! Unlikely big " |
80acefff AF |
1308 | "volume range (=%u), cval->res is probably wrong.", |
1309 | range); | |
0ba41d91 | 1310 | usb_audio_warn(state->chip, "[%d] FU [%s] ch = %d, " |
80acefff AF |
1311 | "val = %d/%d/%d", cval->id, |
1312 | kctl->id.name, cval->channels, | |
1313 | cval->min, cval->max, cval->res); | |
1314 | } | |
1315 | ||
0ba41d91 | 1316 | usb_audio_dbg(state->chip, "[%d] FU [%s] ch = %d, val = %d/%d/%d\n", |
1da177e4 | 1317 | cval->id, kctl->id.name, cval->channels, cval->min, cval->max, cval->res); |
ef9d5970 | 1318 | snd_usb_mixer_add_control(state->mixer, kctl); |
1da177e4 LT |
1319 | } |
1320 | ||
1321 | ||
1322 | ||
1323 | /* | |
1324 | * parse a feature unit | |
1325 | * | |
25985edc | 1326 | * most of controls are defined here. |
1da177e4 | 1327 | */ |
28e1b773 | 1328 | static int parse_audio_feature_unit(struct mixer_build *state, int unitid, void *_ftr) |
1da177e4 LT |
1329 | { |
1330 | int channels, i, j; | |
86e07d34 | 1331 | struct usb_audio_term iterm; |
1da177e4 LT |
1332 | unsigned int master_bits, first_ch_bits; |
1333 | int err, csize; | |
23caaf19 DM |
1334 | struct uac_feature_unit_descriptor *hdr = _ftr; |
1335 | __u8 *bmaControls; | |
1336 | ||
1337 | if (state->mixer->protocol == UAC_VERSION_1) { | |
1338 | csize = hdr->bControlSize; | |
60c961a9 | 1339 | if (!csize) { |
0ba41d91 TI |
1340 | usb_audio_dbg(state->chip, |
1341 | "unit %u: invalid bControlSize == 0\n", | |
1342 | unitid); | |
60c961a9 NK |
1343 | return -EINVAL; |
1344 | } | |
23caaf19 DM |
1345 | channels = (hdr->bLength - 7) / csize - 1; |
1346 | bmaControls = hdr->bmaControls; | |
d56268fb | 1347 | if (hdr->bLength < 7 + csize) { |
0ba41d91 TI |
1348 | usb_audio_err(state->chip, |
1349 | "unit %u: invalid UAC_FEATURE_UNIT descriptor\n", | |
1350 | unitid); | |
d56268fb CL |
1351 | return -EINVAL; |
1352 | } | |
23caaf19 DM |
1353 | } else { |
1354 | struct uac2_feature_unit_descriptor *ftr = _ftr; | |
1355 | csize = 4; | |
e8d0fee7 | 1356 | channels = (hdr->bLength - 6) / 4 - 1; |
23caaf19 | 1357 | bmaControls = ftr->bmaControls; |
d56268fb | 1358 | if (hdr->bLength < 6 + csize) { |
0ba41d91 TI |
1359 | usb_audio_err(state->chip, |
1360 | "unit %u: invalid UAC_FEATURE_UNIT descriptor\n", | |
1361 | unitid); | |
d56268fb CL |
1362 | return -EINVAL; |
1363 | } | |
1da177e4 LT |
1364 | } |
1365 | ||
1366 | /* parse the source unit */ | |
23caaf19 | 1367 | if ((err = parse_audio_unit(state, hdr->bSourceID)) < 0) |
1da177e4 LT |
1368 | return err; |
1369 | ||
1370 | /* determine the input source type and name */ | |
4d7b86c9 DM |
1371 | err = check_input_term(state, hdr->bSourceID, &iterm); |
1372 | if (err < 0) | |
1373 | return err; | |
1da177e4 | 1374 | |
23caaf19 | 1375 | master_bits = snd_usb_combine_bytes(bmaControls, csize); |
0c3cee57 JK |
1376 | /* master configuration quirks */ |
1377 | switch (state->chip->usb_id) { | |
1378 | case USB_ID(0x08bb, 0x2702): | |
0ba41d91 TI |
1379 | usb_audio_info(state->chip, |
1380 | "usbmixer: master volume quirk for PCM2702 chip\n"); | |
0c3cee57 | 1381 | /* disable non-functional volume control */ |
65f25da4 | 1382 | master_bits &= ~UAC_CONTROL_BIT(UAC_FU_VOLUME); |
0c3cee57 | 1383 | break; |
c1051439 | 1384 | case USB_ID(0x1130, 0xf211): |
0ba41d91 TI |
1385 | usb_audio_info(state->chip, |
1386 | "usbmixer: volume control quirk for Tenx TP6911 Audio Headset\n"); | |
c1051439 DH |
1387 | /* disable non-functional volume control */ |
1388 | channels = 0; | |
1389 | break; | |
1390 | ||
0c3cee57 | 1391 | } |
1da177e4 | 1392 | if (channels > 0) |
23caaf19 | 1393 | first_ch_bits = snd_usb_combine_bytes(bmaControls + csize, csize); |
1da177e4 LT |
1394 | else |
1395 | first_ch_bits = 0; | |
23caaf19 DM |
1396 | |
1397 | if (state->mixer->protocol == UAC_VERSION_1) { | |
1398 | /* check all control types */ | |
1399 | for (i = 0; i < 10; i++) { | |
1400 | unsigned int ch_bits = 0; | |
1401 | for (j = 0; j < channels; j++) { | |
1402 | unsigned int mask = snd_usb_combine_bytes(bmaControls + csize * (j+1), csize); | |
1403 | if (mask & (1 << i)) | |
1404 | ch_bits |= (1 << j); | |
1405 | } | |
1406 | /* audio class v1 controls are never read-only */ | |
1407 | if (ch_bits & 1) /* the first channel must be set (for ease of programming) */ | |
1408 | build_feature_ctl(state, _ftr, ch_bits, i, &iterm, unitid, 0); | |
1409 | if (master_bits & (1 << i)) | |
1410 | build_feature_ctl(state, _ftr, 0, i, &iterm, unitid, 0); | |
1411 | } | |
1412 | } else { /* UAC_VERSION_2 */ | |
d09c06c6 | 1413 | for (i = 0; i < ARRAY_SIZE(audio_feature_info); i++) { |
23caaf19 DM |
1414 | unsigned int ch_bits = 0; |
1415 | unsigned int ch_read_only = 0; | |
1416 | ||
1417 | for (j = 0; j < channels; j++) { | |
1418 | unsigned int mask = snd_usb_combine_bytes(bmaControls + csize * (j+1), csize); | |
dcbe7bcf | 1419 | if (uac2_control_is_readable(mask, i)) { |
23caaf19 | 1420 | ch_bits |= (1 << j); |
dcbe7bcf | 1421 | if (!uac2_control_is_writeable(mask, i)) |
23caaf19 DM |
1422 | ch_read_only |= (1 << j); |
1423 | } | |
1424 | } | |
1425 | ||
a6a33259 DM |
1426 | /* NOTE: build_feature_ctl() will mark the control read-only if all channels |
1427 | * are marked read-only in the descriptors. Otherwise, the control will be | |
1428 | * reported as writeable, but the driver will not actually issue a write | |
1429 | * command for read-only channels */ | |
23caaf19 | 1430 | if (ch_bits & 1) /* the first channel must be set (for ease of programming) */ |
a6a33259 | 1431 | build_feature_ctl(state, _ftr, ch_bits, i, &iterm, unitid, ch_read_only); |
dcbe7bcf | 1432 | if (uac2_control_is_readable(master_bits, i)) |
23caaf19 | 1433 | build_feature_ctl(state, _ftr, 0, i, &iterm, unitid, |
dcbe7bcf | 1434 | !uac2_control_is_writeable(master_bits, i)); |
1da177e4 | 1435 | } |
1da177e4 LT |
1436 | } |
1437 | ||
1438 | return 0; | |
1439 | } | |
1440 | ||
1441 | ||
1442 | /* | |
1443 | * Mixer Unit | |
1444 | */ | |
1445 | ||
1446 | /* | |
1447 | * build a mixer unit control | |
1448 | * | |
1449 | * the callbacks are identical with feature unit. | |
1450 | * input channel number (zero based) is given in control field instead. | |
1451 | */ | |
1452 | ||
99fc8645 DM |
1453 | static void build_mixer_unit_ctl(struct mixer_build *state, |
1454 | struct uac_mixer_unit_descriptor *desc, | |
1da177e4 | 1455 | int in_pin, int in_ch, int unitid, |
86e07d34 | 1456 | struct usb_audio_term *iterm) |
1da177e4 | 1457 | { |
86e07d34 | 1458 | struct usb_mixer_elem_info *cval; |
99fc8645 | 1459 | unsigned int num_outs = uac_mixer_unit_bNrChannels(desc); |
1da177e4 | 1460 | unsigned int i, len; |
86e07d34 | 1461 | struct snd_kcontrol *kctl; |
c3a3e040 | 1462 | const struct usbmix_name_map *map; |
1da177e4 | 1463 | |
c3a3e040 JK |
1464 | map = find_map(state, unitid, 0); |
1465 | if (check_ignored_ctl(map)) | |
1da177e4 LT |
1466 | return; |
1467 | ||
561b220a | 1468 | cval = kzalloc(sizeof(*cval), GFP_KERNEL); |
1da177e4 LT |
1469 | if (! cval) |
1470 | return; | |
1471 | ||
84957a8a | 1472 | cval->mixer = state->mixer; |
1da177e4 LT |
1473 | cval->id = unitid; |
1474 | cval->control = in_ch + 1; /* based on 1 */ | |
1475 | cval->val_type = USB_MIXER_S16; | |
1476 | for (i = 0; i < num_outs; i++) { | |
23caaf19 | 1477 | if (check_matrix_bitmap(uac_mixer_unit_bmControls(desc, state->mixer->protocol), in_ch, i, num_outs)) { |
1da177e4 LT |
1478 | cval->cmask |= (1 << i); |
1479 | cval->channels++; | |
1480 | } | |
1481 | } | |
1482 | ||
1483 | /* get min/max values */ | |
1484 | get_min_max(cval, 0); | |
1485 | ||
1486 | kctl = snd_ctl_new1(&usb_feature_unit_ctl, cval); | |
1487 | if (! kctl) { | |
0ba41d91 | 1488 | usb_audio_err(state->chip, "cannot malloc kcontrol\n"); |
1da177e4 LT |
1489 | kfree(cval); |
1490 | return; | |
1491 | } | |
1492 | kctl->private_free = usb_mixer_elem_free; | |
1493 | ||
c3a3e040 | 1494 | len = check_mapped_name(map, kctl->id.name, sizeof(kctl->id.name)); |
1da177e4 LT |
1495 | if (! len) |
1496 | len = get_term_name(state, iterm, kctl->id.name, sizeof(kctl->id.name), 0); | |
1497 | if (! len) | |
1498 | len = sprintf(kctl->id.name, "Mixer Source %d", in_ch + 1); | |
08d1e635 | 1499 | append_ctl_name(kctl, " Volume"); |
1da177e4 | 1500 | |
0ba41d91 | 1501 | usb_audio_dbg(state->chip, "[%d] MU [%s] ch = %d, val = %d/%d\n", |
1da177e4 | 1502 | cval->id, kctl->id.name, cval->channels, cval->min, cval->max); |
ef9d5970 | 1503 | snd_usb_mixer_add_control(state->mixer, kctl); |
1da177e4 LT |
1504 | } |
1505 | ||
1506 | ||
1507 | /* | |
1508 | * parse a mixer unit | |
1509 | */ | |
99fc8645 | 1510 | static int parse_audio_mixer_unit(struct mixer_build *state, int unitid, void *raw_desc) |
1da177e4 | 1511 | { |
99fc8645 | 1512 | struct uac_mixer_unit_descriptor *desc = raw_desc; |
86e07d34 | 1513 | struct usb_audio_term iterm; |
1da177e4 LT |
1514 | int input_pins, num_ins, num_outs; |
1515 | int pin, ich, err; | |
1516 | ||
99fc8645 | 1517 | if (desc->bLength < 11 || ! (input_pins = desc->bNrInPins) || ! (num_outs = uac_mixer_unit_bNrChannels(desc))) { |
0ba41d91 | 1518 | usb_audio_err(state->chip, "invalid MIXER UNIT descriptor %d\n", unitid); |
1da177e4 LT |
1519 | return -EINVAL; |
1520 | } | |
1521 | /* no bmControls field (e.g. Maya44) -> ignore */ | |
99fc8645 | 1522 | if (desc->bLength <= 10 + input_pins) { |
0ba41d91 | 1523 | usb_audio_dbg(state->chip, "MU %d has no bmControls field\n", unitid); |
1da177e4 LT |
1524 | return 0; |
1525 | } | |
1526 | ||
1527 | num_ins = 0; | |
1528 | ich = 0; | |
1529 | for (pin = 0; pin < input_pins; pin++) { | |
99fc8645 | 1530 | err = parse_audio_unit(state, desc->baSourceID[pin]); |
1da177e4 | 1531 | if (err < 0) |
284a8dd6 | 1532 | continue; |
99fc8645 | 1533 | err = check_input_term(state, desc->baSourceID[pin], &iterm); |
1da177e4 LT |
1534 | if (err < 0) |
1535 | return err; | |
1536 | num_ins += iterm.channels; | |
1537 | for (; ich < num_ins; ++ich) { | |
1538 | int och, ich_has_controls = 0; | |
1539 | ||
1540 | for (och = 0; och < num_outs; ++och) { | |
23caaf19 | 1541 | if (check_matrix_bitmap(uac_mixer_unit_bmControls(desc, state->mixer->protocol), |
1da177e4 LT |
1542 | ich, och, num_outs)) { |
1543 | ich_has_controls = 1; | |
1544 | break; | |
1545 | } | |
1546 | } | |
1547 | if (ich_has_controls) | |
1548 | build_mixer_unit_ctl(state, desc, pin, ich, | |
1549 | unitid, &iterm); | |
1550 | } | |
1551 | } | |
1552 | return 0; | |
1553 | } | |
1554 | ||
1555 | ||
1556 | /* | |
1557 | * Processing Unit / Extension Unit | |
1558 | */ | |
1559 | ||
1560 | /* get callback for processing/extension unit */ | |
86e07d34 | 1561 | static int mixer_ctl_procunit_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) |
1da177e4 | 1562 | { |
86e07d34 | 1563 | struct usb_mixer_elem_info *cval = kcontrol->private_data; |
1da177e4 LT |
1564 | int err, val; |
1565 | ||
1566 | err = get_cur_ctl_value(cval, cval->control << 8, &val); | |
84957a8a | 1567 | if (err < 0 && cval->mixer->ignore_ctl_error) { |
1da177e4 LT |
1568 | ucontrol->value.integer.value[0] = cval->min; |
1569 | return 0; | |
1570 | } | |
1571 | if (err < 0) | |
1572 | return err; | |
1573 | val = get_relative_value(cval, val); | |
1574 | ucontrol->value.integer.value[0] = val; | |
1575 | return 0; | |
1576 | } | |
1577 | ||
1578 | /* put callback for processing/extension unit */ | |
86e07d34 | 1579 | static int mixer_ctl_procunit_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) |
1da177e4 | 1580 | { |
86e07d34 | 1581 | struct usb_mixer_elem_info *cval = kcontrol->private_data; |
1da177e4 LT |
1582 | int val, oval, err; |
1583 | ||
1584 | err = get_cur_ctl_value(cval, cval->control << 8, &oval); | |
1585 | if (err < 0) { | |
84957a8a | 1586 | if (cval->mixer->ignore_ctl_error) |
1da177e4 LT |
1587 | return 0; |
1588 | return err; | |
1589 | } | |
1590 | val = ucontrol->value.integer.value[0]; | |
1591 | val = get_abs_value(cval, val); | |
1592 | if (val != oval) { | |
1593 | set_cur_ctl_value(cval, cval->control << 8, val); | |
1594 | return 1; | |
1595 | } | |
1596 | return 0; | |
1597 | } | |
1598 | ||
1599 | /* alsa control interface for processing/extension unit */ | |
86e07d34 | 1600 | static struct snd_kcontrol_new mixer_procunit_ctl = { |
1da177e4 LT |
1601 | .iface = SNDRV_CTL_ELEM_IFACE_MIXER, |
1602 | .name = "", /* will be filled later */ | |
1603 | .info = mixer_ctl_feature_info, | |
1604 | .get = mixer_ctl_procunit_get, | |
1605 | .put = mixer_ctl_procunit_put, | |
1606 | }; | |
1607 | ||
1608 | ||
1609 | /* | |
1610 | * predefined data for processing units | |
1611 | */ | |
1612 | struct procunit_value_info { | |
1613 | int control; | |
1614 | char *suffix; | |
1615 | int val_type; | |
1616 | int min_value; | |
1617 | }; | |
1618 | ||
1619 | struct procunit_info { | |
1620 | int type; | |
1621 | char *name; | |
1622 | struct procunit_value_info *values; | |
1623 | }; | |
1624 | ||
1625 | static struct procunit_value_info updown_proc_info[] = { | |
65f25da4 DM |
1626 | { UAC_UD_ENABLE, "Switch", USB_MIXER_BOOLEAN }, |
1627 | { UAC_UD_MODE_SELECT, "Mode Select", USB_MIXER_U8, 1 }, | |
1da177e4 LT |
1628 | { 0 } |
1629 | }; | |
1630 | static struct procunit_value_info prologic_proc_info[] = { | |
65f25da4 DM |
1631 | { UAC_DP_ENABLE, "Switch", USB_MIXER_BOOLEAN }, |
1632 | { UAC_DP_MODE_SELECT, "Mode Select", USB_MIXER_U8, 1 }, | |
1da177e4 LT |
1633 | { 0 } |
1634 | }; | |
1635 | static struct procunit_value_info threed_enh_proc_info[] = { | |
65f25da4 DM |
1636 | { UAC_3D_ENABLE, "Switch", USB_MIXER_BOOLEAN }, |
1637 | { UAC_3D_SPACE, "Spaciousness", USB_MIXER_U8 }, | |
1da177e4 LT |
1638 | { 0 } |
1639 | }; | |
1640 | static struct procunit_value_info reverb_proc_info[] = { | |
65f25da4 DM |
1641 | { UAC_REVERB_ENABLE, "Switch", USB_MIXER_BOOLEAN }, |
1642 | { UAC_REVERB_LEVEL, "Level", USB_MIXER_U8 }, | |
1643 | { UAC_REVERB_TIME, "Time", USB_MIXER_U16 }, | |
1644 | { UAC_REVERB_FEEDBACK, "Feedback", USB_MIXER_U8 }, | |
1da177e4 LT |
1645 | { 0 } |
1646 | }; | |
1647 | static struct procunit_value_info chorus_proc_info[] = { | |
65f25da4 DM |
1648 | { UAC_CHORUS_ENABLE, "Switch", USB_MIXER_BOOLEAN }, |
1649 | { UAC_CHORUS_LEVEL, "Level", USB_MIXER_U8 }, | |
1650 | { UAC_CHORUS_RATE, "Rate", USB_MIXER_U16 }, | |
1651 | { UAC_CHORUS_DEPTH, "Depth", USB_MIXER_U16 }, | |
1da177e4 LT |
1652 | { 0 } |
1653 | }; | |
1654 | static struct procunit_value_info dcr_proc_info[] = { | |
65f25da4 DM |
1655 | { UAC_DCR_ENABLE, "Switch", USB_MIXER_BOOLEAN }, |
1656 | { UAC_DCR_RATE, "Ratio", USB_MIXER_U16 }, | |
1657 | { UAC_DCR_MAXAMPL, "Max Amp", USB_MIXER_S16 }, | |
1658 | { UAC_DCR_THRESHOLD, "Threshold", USB_MIXER_S16 }, | |
1659 | { UAC_DCR_ATTACK_TIME, "Attack Time", USB_MIXER_U16 }, | |
1660 | { UAC_DCR_RELEASE_TIME, "Release Time", USB_MIXER_U16 }, | |
1da177e4 LT |
1661 | { 0 } |
1662 | }; | |
1663 | ||
1664 | static struct procunit_info procunits[] = { | |
65f25da4 DM |
1665 | { UAC_PROCESS_UP_DOWNMIX, "Up Down", updown_proc_info }, |
1666 | { UAC_PROCESS_DOLBY_PROLOGIC, "Dolby Prologic", prologic_proc_info }, | |
1667 | { UAC_PROCESS_STEREO_EXTENDER, "3D Stereo Extender", threed_enh_proc_info }, | |
1668 | { UAC_PROCESS_REVERB, "Reverb", reverb_proc_info }, | |
1669 | { UAC_PROCESS_CHORUS, "Chorus", chorus_proc_info }, | |
1670 | { UAC_PROCESS_DYN_RANGE_COMP, "DCR", dcr_proc_info }, | |
1da177e4 LT |
1671 | { 0 }, |
1672 | }; | |
7d2b451e SK |
1673 | /* |
1674 | * predefined data for extension units | |
1675 | */ | |
1676 | static struct procunit_value_info clock_rate_xu_info[] = { | |
e213e9cf DM |
1677 | { USB_XU_CLOCK_RATE_SELECTOR, "Selector", USB_MIXER_U8, 0 }, |
1678 | { 0 } | |
7d2b451e SK |
1679 | }; |
1680 | static struct procunit_value_info clock_source_xu_info[] = { | |
1681 | { USB_XU_CLOCK_SOURCE_SELECTOR, "External", USB_MIXER_BOOLEAN }, | |
1682 | { 0 } | |
1683 | }; | |
1684 | static struct procunit_value_info spdif_format_xu_info[] = { | |
1685 | { USB_XU_DIGITAL_FORMAT_SELECTOR, "SPDIF/AC3", USB_MIXER_BOOLEAN }, | |
1686 | { 0 } | |
1687 | }; | |
1688 | static struct procunit_value_info soft_limit_xu_info[] = { | |
1689 | { USB_XU_SOFT_LIMIT_SELECTOR, " ", USB_MIXER_BOOLEAN }, | |
1690 | { 0 } | |
1691 | }; | |
1692 | static struct procunit_info extunits[] = { | |
1693 | { USB_XU_CLOCK_RATE, "Clock rate", clock_rate_xu_info }, | |
1694 | { USB_XU_CLOCK_SOURCE, "DigitalIn CLK source", clock_source_xu_info }, | |
1695 | { USB_XU_DIGITAL_IO_STATUS, "DigitalOut format:", spdif_format_xu_info }, | |
1696 | { USB_XU_DEVICE_OPTIONS, "AnalogueIn Soft Limit", soft_limit_xu_info }, | |
1697 | { 0 } | |
1698 | }; | |
1da177e4 LT |
1699 | /* |
1700 | * build a processing/extension unit | |
1701 | */ | |
99fc8645 | 1702 | static int build_audio_procunit(struct mixer_build *state, int unitid, void *raw_desc, struct procunit_info *list, char *name) |
1da177e4 | 1703 | { |
99fc8645 DM |
1704 | struct uac_processing_unit_descriptor *desc = raw_desc; |
1705 | int num_ins = desc->bNrInPins; | |
86e07d34 TI |
1706 | struct usb_mixer_elem_info *cval; |
1707 | struct snd_kcontrol *kctl; | |
1da177e4 LT |
1708 | int i, err, nameid, type, len; |
1709 | struct procunit_info *info; | |
1710 | struct procunit_value_info *valinfo; | |
c3a3e040 | 1711 | const struct usbmix_name_map *map; |
1da177e4 LT |
1712 | static struct procunit_value_info default_value_info[] = { |
1713 | { 0x01, "Switch", USB_MIXER_BOOLEAN }, | |
1714 | { 0 } | |
1715 | }; | |
1716 | static struct procunit_info default_info = { | |
1717 | 0, NULL, default_value_info | |
1718 | }; | |
1719 | ||
23caaf19 DM |
1720 | if (desc->bLength < 13 || desc->bLength < 13 + num_ins || |
1721 | desc->bLength < num_ins + uac_processing_unit_bControlSize(desc, state->mixer->protocol)) { | |
0ba41d91 | 1722 | usb_audio_err(state->chip, "invalid %s descriptor (id %d)\n", name, unitid); |
1da177e4 LT |
1723 | return -EINVAL; |
1724 | } | |
1725 | ||
1726 | for (i = 0; i < num_ins; i++) { | |
99fc8645 | 1727 | if ((err = parse_audio_unit(state, desc->baSourceID[i])) < 0) |
1da177e4 LT |
1728 | return err; |
1729 | } | |
1730 | ||
99fc8645 | 1731 | type = le16_to_cpu(desc->wProcessType); |
1da177e4 LT |
1732 | for (info = list; info && info->type; info++) |
1733 | if (info->type == type) | |
1734 | break; | |
1735 | if (! info || ! info->type) | |
1736 | info = &default_info; | |
1737 | ||
1738 | for (valinfo = info->values; valinfo->control; valinfo++) { | |
23caaf19 | 1739 | __u8 *controls = uac_processing_unit_bmControls(desc, state->mixer->protocol); |
99fc8645 DM |
1740 | |
1741 | if (! (controls[valinfo->control / 8] & (1 << ((valinfo->control % 8) - 1)))) | |
1da177e4 | 1742 | continue; |
c3a3e040 JK |
1743 | map = find_map(state, unitid, valinfo->control); |
1744 | if (check_ignored_ctl(map)) | |
1da177e4 | 1745 | continue; |
561b220a | 1746 | cval = kzalloc(sizeof(*cval), GFP_KERNEL); |
1da177e4 | 1747 | if (! cval) { |
0ba41d91 | 1748 | usb_audio_err(state->chip, "cannot malloc kcontrol\n"); |
1da177e4 LT |
1749 | return -ENOMEM; |
1750 | } | |
84957a8a | 1751 | cval->mixer = state->mixer; |
1da177e4 LT |
1752 | cval->id = unitid; |
1753 | cval->control = valinfo->control; | |
1754 | cval->val_type = valinfo->val_type; | |
1755 | cval->channels = 1; | |
1756 | ||
1757 | /* get min/max values */ | |
65f25da4 | 1758 | if (type == UAC_PROCESS_UP_DOWNMIX && cval->control == UAC_UD_MODE_SELECT) { |
23caaf19 | 1759 | __u8 *control_spec = uac_processing_unit_specific(desc, state->mixer->protocol); |
1da177e4 LT |
1760 | /* FIXME: hard-coded */ |
1761 | cval->min = 1; | |
99fc8645 | 1762 | cval->max = control_spec[0]; |
1da177e4 LT |
1763 | cval->res = 1; |
1764 | cval->initialized = 1; | |
7d2b451e SK |
1765 | } else { |
1766 | if (type == USB_XU_CLOCK_RATE) { | |
1cdfa9f3 | 1767 | /* E-Mu USB 0404/0202/TrackerPre/0204 |
7d2b451e SK |
1768 | * samplerate control quirk |
1769 | */ | |
1770 | cval->min = 0; | |
1771 | cval->max = 5; | |
1772 | cval->res = 1; | |
1773 | cval->initialized = 1; | |
1774 | } else | |
1775 | get_min_max(cval, valinfo->min_value); | |
1776 | } | |
1da177e4 LT |
1777 | |
1778 | kctl = snd_ctl_new1(&mixer_procunit_ctl, cval); | |
1779 | if (! kctl) { | |
0ba41d91 | 1780 | usb_audio_err(state->chip, "cannot malloc kcontrol\n"); |
1da177e4 LT |
1781 | kfree(cval); |
1782 | return -ENOMEM; | |
1783 | } | |
1784 | kctl->private_free = usb_mixer_elem_free; | |
1785 | ||
c3a3e040 JK |
1786 | if (check_mapped_name(map, kctl->id.name, |
1787 | sizeof(kctl->id.name))) | |
1788 | /* nothing */ ; | |
1da177e4 LT |
1789 | else if (info->name) |
1790 | strlcpy(kctl->id.name, info->name, sizeof(kctl->id.name)); | |
1791 | else { | |
23caaf19 | 1792 | nameid = uac_processing_unit_iProcessing(desc, state->mixer->protocol); |
1da177e4 LT |
1793 | len = 0; |
1794 | if (nameid) | |
1795 | len = snd_usb_copy_string_desc(state, nameid, kctl->id.name, sizeof(kctl->id.name)); | |
1796 | if (! len) | |
1797 | strlcpy(kctl->id.name, name, sizeof(kctl->id.name)); | |
1798 | } | |
08d1e635 TI |
1799 | append_ctl_name(kctl, " "); |
1800 | append_ctl_name(kctl, valinfo->suffix); | |
1da177e4 | 1801 | |
0ba41d91 TI |
1802 | usb_audio_dbg(state->chip, |
1803 | "[%d] PU [%s] ch = %d, val = %d/%d\n", | |
1da177e4 | 1804 | cval->id, kctl->id.name, cval->channels, cval->min, cval->max); |
ef9d5970 | 1805 | if ((err = snd_usb_mixer_add_control(state->mixer, kctl)) < 0) |
1da177e4 LT |
1806 | return err; |
1807 | } | |
1808 | return 0; | |
1809 | } | |
1810 | ||
1811 | ||
99fc8645 | 1812 | static int parse_audio_processing_unit(struct mixer_build *state, int unitid, void *raw_desc) |
1da177e4 | 1813 | { |
99fc8645 | 1814 | return build_audio_procunit(state, unitid, raw_desc, procunits, "Processing Unit"); |
1da177e4 LT |
1815 | } |
1816 | ||
99fc8645 | 1817 | static int parse_audio_extension_unit(struct mixer_build *state, int unitid, void *raw_desc) |
1da177e4 | 1818 | { |
99fc8645 DM |
1819 | /* Note that we parse extension units with processing unit descriptors. |
1820 | * That's ok as the layout is the same */ | |
1821 | return build_audio_procunit(state, unitid, raw_desc, extunits, "Extension Unit"); | |
1da177e4 LT |
1822 | } |
1823 | ||
1824 | ||
1825 | /* | |
1826 | * Selector Unit | |
1827 | */ | |
1828 | ||
1829 | /* info callback for selector unit | |
1830 | * use an enumerator type for routing | |
1831 | */ | |
86e07d34 | 1832 | static int mixer_ctl_selector_info(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo) |
1da177e4 | 1833 | { |
86e07d34 | 1834 | struct usb_mixer_elem_info *cval = kcontrol->private_data; |
2a1803a7 | 1835 | const char **itemlist = (const char **)kcontrol->private_value; |
1da177e4 | 1836 | |
5e246b85 TI |
1837 | if (snd_BUG_ON(!itemlist)) |
1838 | return -EINVAL; | |
2a1803a7 | 1839 | return snd_ctl_enum_info(uinfo, 1, cval->max, itemlist); |
1da177e4 LT |
1840 | } |
1841 | ||
1842 | /* get callback for selector unit */ | |
86e07d34 | 1843 | static int mixer_ctl_selector_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) |
1da177e4 | 1844 | { |
86e07d34 | 1845 | struct usb_mixer_elem_info *cval = kcontrol->private_data; |
1da177e4 LT |
1846 | int val, err; |
1847 | ||
09414207 | 1848 | err = get_cur_ctl_value(cval, cval->control << 8, &val); |
1da177e4 | 1849 | if (err < 0) { |
84957a8a | 1850 | if (cval->mixer->ignore_ctl_error) { |
1da177e4 LT |
1851 | ucontrol->value.enumerated.item[0] = 0; |
1852 | return 0; | |
1853 | } | |
1854 | return err; | |
1855 | } | |
1856 | val = get_relative_value(cval, val); | |
1857 | ucontrol->value.enumerated.item[0] = val; | |
1858 | return 0; | |
1859 | } | |
1860 | ||
1861 | /* put callback for selector unit */ | |
86e07d34 | 1862 | static int mixer_ctl_selector_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) |
1da177e4 | 1863 | { |
86e07d34 | 1864 | struct usb_mixer_elem_info *cval = kcontrol->private_data; |
1da177e4 LT |
1865 | int val, oval, err; |
1866 | ||
09414207 | 1867 | err = get_cur_ctl_value(cval, cval->control << 8, &oval); |
1da177e4 | 1868 | if (err < 0) { |
84957a8a | 1869 | if (cval->mixer->ignore_ctl_error) |
1da177e4 LT |
1870 | return 0; |
1871 | return err; | |
1872 | } | |
1873 | val = ucontrol->value.enumerated.item[0]; | |
1874 | val = get_abs_value(cval, val); | |
1875 | if (val != oval) { | |
09414207 | 1876 | set_cur_ctl_value(cval, cval->control << 8, val); |
1da177e4 LT |
1877 | return 1; |
1878 | } | |
1879 | return 0; | |
1880 | } | |
1881 | ||
1882 | /* alsa control interface for selector unit */ | |
86e07d34 | 1883 | static struct snd_kcontrol_new mixer_selectunit_ctl = { |
1da177e4 LT |
1884 | .iface = SNDRV_CTL_ELEM_IFACE_MIXER, |
1885 | .name = "", /* will be filled later */ | |
1886 | .info = mixer_ctl_selector_info, | |
1887 | .get = mixer_ctl_selector_get, | |
1888 | .put = mixer_ctl_selector_put, | |
1889 | }; | |
1890 | ||
1891 | ||
1892 | /* private free callback. | |
1893 | * free both private_data and private_value | |
1894 | */ | |
86e07d34 | 1895 | static void usb_mixer_selector_elem_free(struct snd_kcontrol *kctl) |
1da177e4 LT |
1896 | { |
1897 | int i, num_ins = 0; | |
1898 | ||
1899 | if (kctl->private_data) { | |
86e07d34 | 1900 | struct usb_mixer_elem_info *cval = kctl->private_data; |
1da177e4 LT |
1901 | num_ins = cval->max; |
1902 | kfree(cval); | |
1903 | kctl->private_data = NULL; | |
1904 | } | |
1905 | if (kctl->private_value) { | |
1906 | char **itemlist = (char **)kctl->private_value; | |
1907 | for (i = 0; i < num_ins; i++) | |
1908 | kfree(itemlist[i]); | |
1909 | kfree(itemlist); | |
1910 | kctl->private_value = 0; | |
1911 | } | |
1912 | } | |
1913 | ||
1914 | /* | |
1915 | * parse a selector unit | |
1916 | */ | |
99fc8645 | 1917 | static int parse_audio_selector_unit(struct mixer_build *state, int unitid, void *raw_desc) |
1da177e4 | 1918 | { |
99fc8645 | 1919 | struct uac_selector_unit_descriptor *desc = raw_desc; |
1da177e4 LT |
1920 | unsigned int i, nameid, len; |
1921 | int err; | |
86e07d34 TI |
1922 | struct usb_mixer_elem_info *cval; |
1923 | struct snd_kcontrol *kctl; | |
c3a3e040 | 1924 | const struct usbmix_name_map *map; |
1da177e4 LT |
1925 | char **namelist; |
1926 | ||
99fc8645 | 1927 | if (!desc->bNrInPins || desc->bLength < 5 + desc->bNrInPins) { |
0ba41d91 TI |
1928 | usb_audio_err(state->chip, |
1929 | "invalid SELECTOR UNIT descriptor %d\n", unitid); | |
1da177e4 LT |
1930 | return -EINVAL; |
1931 | } | |
1932 | ||
99fc8645 DM |
1933 | for (i = 0; i < desc->bNrInPins; i++) { |
1934 | if ((err = parse_audio_unit(state, desc->baSourceID[i])) < 0) | |
1da177e4 LT |
1935 | return err; |
1936 | } | |
1937 | ||
99fc8645 | 1938 | if (desc->bNrInPins == 1) /* only one ? nonsense! */ |
1da177e4 LT |
1939 | return 0; |
1940 | ||
c3a3e040 JK |
1941 | map = find_map(state, unitid, 0); |
1942 | if (check_ignored_ctl(map)) | |
1da177e4 LT |
1943 | return 0; |
1944 | ||
561b220a | 1945 | cval = kzalloc(sizeof(*cval), GFP_KERNEL); |
1da177e4 | 1946 | if (! cval) { |
0ba41d91 | 1947 | usb_audio_err(state->chip, "cannot malloc kcontrol\n"); |
1da177e4 LT |
1948 | return -ENOMEM; |
1949 | } | |
84957a8a | 1950 | cval->mixer = state->mixer; |
1da177e4 LT |
1951 | cval->id = unitid; |
1952 | cval->val_type = USB_MIXER_U8; | |
1953 | cval->channels = 1; | |
1954 | cval->min = 1; | |
99fc8645 | 1955 | cval->max = desc->bNrInPins; |
1da177e4 LT |
1956 | cval->res = 1; |
1957 | cval->initialized = 1; | |
1958 | ||
09414207 DM |
1959 | if (desc->bDescriptorSubtype == UAC2_CLOCK_SELECTOR) |
1960 | cval->control = UAC2_CX_CLOCK_SELECTOR; | |
1961 | else | |
1962 | cval->control = 0; | |
1963 | ||
99fc8645 | 1964 | namelist = kmalloc(sizeof(char *) * desc->bNrInPins, GFP_KERNEL); |
1da177e4 | 1965 | if (! namelist) { |
0ba41d91 | 1966 | usb_audio_err(state->chip, "cannot malloc\n"); |
1da177e4 LT |
1967 | kfree(cval); |
1968 | return -ENOMEM; | |
1969 | } | |
1970 | #define MAX_ITEM_NAME_LEN 64 | |
99fc8645 | 1971 | for (i = 0; i < desc->bNrInPins; i++) { |
86e07d34 | 1972 | struct usb_audio_term iterm; |
1da177e4 LT |
1973 | len = 0; |
1974 | namelist[i] = kmalloc(MAX_ITEM_NAME_LEN, GFP_KERNEL); | |
1975 | if (! namelist[i]) { | |
0ba41d91 | 1976 | usb_audio_err(state->chip, "cannot malloc\n"); |
7fbe3ca5 | 1977 | while (i--) |
1da177e4 LT |
1978 | kfree(namelist[i]); |
1979 | kfree(namelist); | |
1980 | kfree(cval); | |
1981 | return -ENOMEM; | |
1982 | } | |
8e062ec7 CL |
1983 | len = check_mapped_selector_name(state, unitid, i, namelist[i], |
1984 | MAX_ITEM_NAME_LEN); | |
99fc8645 | 1985 | if (! len && check_input_term(state, desc->baSourceID[i], &iterm) >= 0) |
1da177e4 LT |
1986 | len = get_term_name(state, &iterm, namelist[i], MAX_ITEM_NAME_LEN, 0); |
1987 | if (! len) | |
1988 | sprintf(namelist[i], "Input %d", i); | |
1989 | } | |
1990 | ||
1991 | kctl = snd_ctl_new1(&mixer_selectunit_ctl, cval); | |
1992 | if (! kctl) { | |
0ba41d91 | 1993 | usb_audio_err(state->chip, "cannot malloc kcontrol\n"); |
878b4789 | 1994 | kfree(namelist); |
1da177e4 LT |
1995 | kfree(cval); |
1996 | return -ENOMEM; | |
1997 | } | |
1998 | kctl->private_value = (unsigned long)namelist; | |
1999 | kctl->private_free = usb_mixer_selector_elem_free; | |
2000 | ||
99fc8645 | 2001 | nameid = uac_selector_unit_iSelector(desc); |
c3a3e040 | 2002 | len = check_mapped_name(map, kctl->id.name, sizeof(kctl->id.name)); |
1da177e4 LT |
2003 | if (len) |
2004 | ; | |
2005 | else if (nameid) | |
2006 | snd_usb_copy_string_desc(state, nameid, kctl->id.name, sizeof(kctl->id.name)); | |
2007 | else { | |
2008 | len = get_term_name(state, &state->oterm, | |
2009 | kctl->id.name, sizeof(kctl->id.name), 0); | |
2010 | if (! len) | |
2011 | strlcpy(kctl->id.name, "USB", sizeof(kctl->id.name)); | |
2012 | ||
09414207 DM |
2013 | if (desc->bDescriptorSubtype == UAC2_CLOCK_SELECTOR) |
2014 | append_ctl_name(kctl, " Clock Source"); | |
2015 | else if ((state->oterm.type & 0xff00) == 0x0100) | |
08d1e635 | 2016 | append_ctl_name(kctl, " Capture Source"); |
1da177e4 | 2017 | else |
08d1e635 | 2018 | append_ctl_name(kctl, " Playback Source"); |
1da177e4 LT |
2019 | } |
2020 | ||
0ba41d91 | 2021 | usb_audio_dbg(state->chip, "[%d] SU [%s] items = %d\n", |
99fc8645 | 2022 | cval->id, kctl->id.name, desc->bNrInPins); |
ef9d5970 | 2023 | if ((err = snd_usb_mixer_add_control(state->mixer, kctl)) < 0) |
1da177e4 LT |
2024 | return err; |
2025 | ||
2026 | return 0; | |
2027 | } | |
2028 | ||
2029 | ||
2030 | /* | |
2031 | * parse an audio unit recursively | |
2032 | */ | |
2033 | ||
86e07d34 | 2034 | static int parse_audio_unit(struct mixer_build *state, int unitid) |
1da177e4 LT |
2035 | { |
2036 | unsigned char *p1; | |
2037 | ||
2038 | if (test_and_set_bit(unitid, state->unitbitmap)) | |
2039 | return 0; /* the unit already visited */ | |
2040 | ||
2041 | p1 = find_audio_control_unit(state, unitid); | |
2042 | if (!p1) { | |
0ba41d91 | 2043 | usb_audio_err(state->chip, "unit %d not found!\n", unitid); |
1da177e4 LT |
2044 | return -EINVAL; |
2045 | } | |
2046 | ||
2047 | switch (p1[2]) { | |
de48c7bc | 2048 | case UAC_INPUT_TERMINAL: |
09414207 | 2049 | case UAC2_CLOCK_SOURCE: |
1da177e4 | 2050 | return 0; /* NOP */ |
de48c7bc | 2051 | case UAC_MIXER_UNIT: |
1da177e4 | 2052 | return parse_audio_mixer_unit(state, unitid, p1); |
de48c7bc | 2053 | case UAC_SELECTOR_UNIT: |
09414207 | 2054 | case UAC2_CLOCK_SELECTOR: |
1da177e4 | 2055 | return parse_audio_selector_unit(state, unitid, p1); |
de48c7bc | 2056 | case UAC_FEATURE_UNIT: |
1da177e4 | 2057 | return parse_audio_feature_unit(state, unitid, p1); |
69da9bcb | 2058 | case UAC1_PROCESSING_UNIT: |
23caaf19 DM |
2059 | /* UAC2_EFFECT_UNIT has the same value */ |
2060 | if (state->mixer->protocol == UAC_VERSION_1) | |
2061 | return parse_audio_processing_unit(state, unitid, p1); | |
2062 | else | |
2063 | return 0; /* FIXME - effect units not implemented yet */ | |
69da9bcb | 2064 | case UAC1_EXTENSION_UNIT: |
23caaf19 DM |
2065 | /* UAC2_PROCESSING_UNIT_V2 has the same value */ |
2066 | if (state->mixer->protocol == UAC_VERSION_1) | |
2067 | return parse_audio_extension_unit(state, unitid, p1); | |
2068 | else /* UAC_VERSION_2 */ | |
2069 | return parse_audio_processing_unit(state, unitid, p1); | |
61ac5130 TH |
2070 | case UAC2_EXTENSION_UNIT_V2: |
2071 | return parse_audio_extension_unit(state, unitid, p1); | |
1da177e4 | 2072 | default: |
0ba41d91 TI |
2073 | usb_audio_err(state->chip, |
2074 | "unit %u: unexpected type 0x%02x\n", unitid, p1[2]); | |
1da177e4 LT |
2075 | return -EINVAL; |
2076 | } | |
2077 | } | |
2078 | ||
84957a8a CL |
2079 | static void snd_usb_mixer_free(struct usb_mixer_interface *mixer) |
2080 | { | |
6639b6c2 CL |
2081 | kfree(mixer->id_elems); |
2082 | if (mixer->urb) { | |
2083 | kfree(mixer->urb->transfer_buffer); | |
2084 | usb_free_urb(mixer->urb); | |
2085 | } | |
68df9de1 | 2086 | usb_free_urb(mixer->rc_urb); |
b259b10c | 2087 | kfree(mixer->rc_setup_packet); |
84957a8a CL |
2088 | kfree(mixer); |
2089 | } | |
2090 | ||
86e07d34 | 2091 | static int snd_usb_mixer_dev_free(struct snd_device *device) |
84957a8a CL |
2092 | { |
2093 | struct usb_mixer_interface *mixer = device->device_data; | |
2094 | snd_usb_mixer_free(mixer); | |
2095 | return 0; | |
2096 | } | |
2097 | ||
1da177e4 LT |
2098 | /* |
2099 | * create mixer controls | |
2100 | * | |
de48c7bc | 2101 | * walk through all UAC_OUTPUT_TERMINAL descriptors to search for mixers |
1da177e4 | 2102 | */ |
84957a8a | 2103 | static int snd_usb_mixer_controls(struct usb_mixer_interface *mixer) |
1da177e4 | 2104 | { |
86e07d34 | 2105 | struct mixer_build state; |
1da177e4 LT |
2106 | int err; |
2107 | const struct usbmix_ctl_map *map; | |
23caaf19 | 2108 | void *p; |
1da177e4 LT |
2109 | |
2110 | memset(&state, 0, sizeof(state)); | |
84957a8a CL |
2111 | state.chip = mixer->chip; |
2112 | state.mixer = mixer; | |
1faa5d07 DM |
2113 | state.buffer = mixer->hostif->extra; |
2114 | state.buflen = mixer->hostif->extralen; | |
1da177e4 LT |
2115 | |
2116 | /* check the mapping table */ | |
27d10f56 CL |
2117 | for (map = usbmix_ctl_maps; map->id; map++) { |
2118 | if (map->id == state.chip->usb_id) { | |
1da177e4 | 2119 | state.map = map->map; |
8e062ec7 | 2120 | state.selector_map = map->selector_map; |
84957a8a | 2121 | mixer->ignore_ctl_error = map->ignore_ctl_error; |
1da177e4 LT |
2122 | break; |
2123 | } | |
2124 | } | |
1da177e4 | 2125 | |
23caaf19 | 2126 | p = NULL; |
1faa5d07 DM |
2127 | while ((p = snd_usb_find_csint_desc(mixer->hostif->extra, mixer->hostif->extralen, |
2128 | p, UAC_OUTPUT_TERMINAL)) != NULL) { | |
23caaf19 | 2129 | if (mixer->protocol == UAC_VERSION_1) { |
69da9bcb | 2130 | struct uac1_output_terminal_descriptor *desc = p; |
23caaf19 DM |
2131 | |
2132 | if (desc->bLength < sizeof(*desc)) | |
2133 | continue; /* invalid descriptor? */ | |
2134 | set_bit(desc->bTerminalID, state.unitbitmap); /* mark terminal ID as visited */ | |
2135 | state.oterm.id = desc->bTerminalID; | |
2136 | state.oterm.type = le16_to_cpu(desc->wTerminalType); | |
2137 | state.oterm.name = desc->iTerminal; | |
2138 | err = parse_audio_unit(&state, desc->bSourceID); | |
83ea5d18 | 2139 | if (err < 0 && err != -EINVAL) |
23caaf19 DM |
2140 | return err; |
2141 | } else { /* UAC_VERSION_2 */ | |
2142 | struct uac2_output_terminal_descriptor *desc = p; | |
2143 | ||
2144 | if (desc->bLength < sizeof(*desc)) | |
2145 | continue; /* invalid descriptor? */ | |
2146 | set_bit(desc->bTerminalID, state.unitbitmap); /* mark terminal ID as visited */ | |
2147 | state.oterm.id = desc->bTerminalID; | |
2148 | state.oterm.type = le16_to_cpu(desc->wTerminalType); | |
2149 | state.oterm.name = desc->iTerminal; | |
2150 | err = parse_audio_unit(&state, desc->bSourceID); | |
83ea5d18 | 2151 | if (err < 0 && err != -EINVAL) |
23caaf19 | 2152 | return err; |
09414207 DM |
2153 | |
2154 | /* for UAC2, use the same approach to also add the clock selectors */ | |
2155 | err = parse_audio_unit(&state, desc->bCSourceID); | |
83ea5d18 | 2156 | if (err < 0 && err != -EINVAL) |
09414207 | 2157 | return err; |
23caaf19 | 2158 | } |
1da177e4 | 2159 | } |
23caaf19 | 2160 | |
1da177e4 LT |
2161 | return 0; |
2162 | } | |
84957a8a | 2163 | |
7b1eda22 | 2164 | void snd_usb_mixer_notify_id(struct usb_mixer_interface *mixer, int unitid) |
6639b6c2 | 2165 | { |
86e07d34 | 2166 | struct usb_mixer_elem_info *info; |
6639b6c2 CL |
2167 | |
2168 | for (info = mixer->id_elems[unitid]; info; info = info->next_id_elem) | |
2169 | snd_ctl_notify(mixer->chip->card, SNDRV_CTL_EVENT_MASK_VALUE, | |
2170 | info->elem_id); | |
2171 | } | |
2172 | ||
ebfdeea3 JK |
2173 | static void snd_usb_mixer_dump_cval(struct snd_info_buffer *buffer, |
2174 | int unitid, | |
2175 | struct usb_mixer_elem_info *cval) | |
2176 | { | |
2177 | static char *val_types[] = {"BOOLEAN", "INV_BOOLEAN", | |
2178 | "S8", "U8", "S16", "U16"}; | |
2179 | snd_iprintf(buffer, " Unit: %i\n", unitid); | |
2180 | if (cval->elem_id) | |
2181 | snd_iprintf(buffer, " Control: name=\"%s\", index=%i\n", | |
2182 | cval->elem_id->name, cval->elem_id->index); | |
2183 | snd_iprintf(buffer, " Info: id=%i, control=%i, cmask=0x%x, " | |
2184 | "channels=%i, type=\"%s\"\n", cval->id, | |
2185 | cval->control, cval->cmask, cval->channels, | |
2186 | val_types[cval->val_type]); | |
2187 | snd_iprintf(buffer, " Volume: min=%i, max=%i, dBmin=%i, dBmax=%i\n", | |
2188 | cval->min, cval->max, cval->dBmin, cval->dBmax); | |
2189 | } | |
2190 | ||
2191 | static void snd_usb_mixer_proc_read(struct snd_info_entry *entry, | |
2192 | struct snd_info_buffer *buffer) | |
2193 | { | |
2194 | struct snd_usb_audio *chip = entry->private_data; | |
2195 | struct usb_mixer_interface *mixer; | |
2196 | struct usb_mixer_elem_info *cval; | |
2197 | int unitid; | |
2198 | ||
2199 | list_for_each_entry(mixer, &chip->mixer_list, list) { | |
2200 | snd_iprintf(buffer, | |
7affdc17 | 2201 | "USB Mixer: usb_id=0x%08x, ctrlif=%i, ctlerr=%i\n", |
3d8d4dcf | 2202 | chip->usb_id, snd_usb_ctrl_intf(chip), |
7affdc17 | 2203 | mixer->ignore_ctl_error); |
ebfdeea3 JK |
2204 | snd_iprintf(buffer, "Card: %s\n", chip->card->longname); |
2205 | for (unitid = 0; unitid < MAX_ID_ELEMS; unitid++) { | |
2206 | for (cval = mixer->id_elems[unitid]; cval; | |
2207 | cval = cval->next_id_elem) | |
2208 | snd_usb_mixer_dump_cval(buffer, unitid, cval); | |
2209 | } | |
2210 | } | |
2211 | } | |
2212 | ||
e213e9cf DM |
2213 | static void snd_usb_mixer_interrupt_v2(struct usb_mixer_interface *mixer, |
2214 | int attribute, int value, int index) | |
2215 | { | |
2216 | struct usb_mixer_elem_info *info; | |
2217 | __u8 unitid = (index >> 8) & 0xff; | |
2218 | __u8 control = (value >> 8) & 0xff; | |
2219 | __u8 channel = value & 0xff; | |
2220 | ||
2221 | if (channel >= MAX_CHANNELS) { | |
0ba41d91 TI |
2222 | usb_audio_dbg(mixer->chip, |
2223 | "%s(): bogus channel number %d\n", | |
2224 | __func__, channel); | |
e213e9cf DM |
2225 | return; |
2226 | } | |
2227 | ||
2228 | for (info = mixer->id_elems[unitid]; info; info = info->next_id_elem) { | |
2229 | if (info->control != control) | |
2230 | continue; | |
2231 | ||
2232 | switch (attribute) { | |
2233 | case UAC2_CS_CUR: | |
2234 | /* invalidate cache, so the value is read from the device */ | |
2235 | if (channel) | |
2236 | info->cached &= ~(1 << channel); | |
2237 | else /* master channel */ | |
2238 | info->cached = 0; | |
2239 | ||
2240 | snd_ctl_notify(mixer->chip->card, SNDRV_CTL_EVENT_MASK_VALUE, | |
2241 | info->elem_id); | |
2242 | break; | |
2243 | ||
2244 | case UAC2_CS_RANGE: | |
2245 | /* TODO */ | |
2246 | break; | |
2247 | ||
2248 | case UAC2_CS_MEM: | |
2249 | /* TODO */ | |
2250 | break; | |
2251 | ||
2252 | default: | |
0ba41d91 TI |
2253 | usb_audio_dbg(mixer->chip, |
2254 | "unknown attribute %d in interrupt\n", | |
2255 | attribute); | |
e213e9cf DM |
2256 | break; |
2257 | } /* switch */ | |
2258 | } | |
2259 | } | |
2260 | ||
2261 | static void snd_usb_mixer_interrupt(struct urb *urb) | |
6639b6c2 CL |
2262 | { |
2263 | struct usb_mixer_interface *mixer = urb->context; | |
e213e9cf | 2264 | int len = urb->actual_length; |
edf7de31 | 2265 | int ustatus = urb->status; |
e213e9cf | 2266 | |
edf7de31 | 2267 | if (ustatus != 0) |
e213e9cf | 2268 | goto requeue; |
6639b6c2 | 2269 | |
e213e9cf DM |
2270 | if (mixer->protocol == UAC_VERSION_1) { |
2271 | struct uac1_status_word *status; | |
6639b6c2 | 2272 | |
e213e9cf DM |
2273 | for (status = urb->transfer_buffer; |
2274 | len >= sizeof(*status); | |
2275 | len -= sizeof(*status), status++) { | |
0ba41d91 | 2276 | dev_dbg(&urb->dev->dev, "status interrupt: %02x %02x\n", |
e213e9cf DM |
2277 | status->bStatusType, |
2278 | status->bOriginator); | |
2279 | ||
6639b6c2 | 2280 | /* ignore any notifications not from the control interface */ |
e213e9cf DM |
2281 | if ((status->bStatusType & UAC1_STATUS_TYPE_ORIG_MASK) != |
2282 | UAC1_STATUS_TYPE_ORIG_AUDIO_CONTROL_IF) | |
6639b6c2 | 2283 | continue; |
e213e9cf DM |
2284 | |
2285 | if (status->bStatusType & UAC1_STATUS_TYPE_MEM_CHANGED) | |
2286 | snd_usb_mixer_rc_memory_change(mixer, status->bOriginator); | |
b259b10c | 2287 | else |
e213e9cf DM |
2288 | snd_usb_mixer_notify_id(mixer, status->bOriginator); |
2289 | } | |
2290 | } else { /* UAC_VERSION_2 */ | |
2291 | struct uac2_interrupt_data_msg *msg; | |
2292 | ||
2293 | for (msg = urb->transfer_buffer; | |
2294 | len >= sizeof(*msg); | |
2295 | len -= sizeof(*msg), msg++) { | |
2296 | /* drop vendor specific and endpoint requests */ | |
2297 | if ((msg->bInfo & UAC2_INTERRUPT_DATA_MSG_VENDOR) || | |
2298 | (msg->bInfo & UAC2_INTERRUPT_DATA_MSG_EP)) | |
2299 | continue; | |
2300 | ||
2301 | snd_usb_mixer_interrupt_v2(mixer, msg->bAttribute, | |
2302 | le16_to_cpu(msg->wValue), | |
2303 | le16_to_cpu(msg->wIndex)); | |
6639b6c2 CL |
2304 | } |
2305 | } | |
e213e9cf DM |
2306 | |
2307 | requeue: | |
edf7de31 | 2308 | if (ustatus != -ENOENT && ustatus != -ECONNRESET && ustatus != -ESHUTDOWN) { |
6639b6c2 CL |
2309 | urb->dev = mixer->chip->dev; |
2310 | usb_submit_urb(urb, GFP_ATOMIC); | |
2311 | } | |
2312 | } | |
2313 | ||
2314 | /* create the handler for the optional status interrupt endpoint */ | |
2315 | static int snd_usb_mixer_status_create(struct usb_mixer_interface *mixer) | |
2316 | { | |
6639b6c2 CL |
2317 | struct usb_endpoint_descriptor *ep; |
2318 | void *transfer_buffer; | |
2319 | int buffer_length; | |
2320 | unsigned int epnum; | |
2321 | ||
6639b6c2 | 2322 | /* we need one interrupt input endpoint */ |
1faa5d07 | 2323 | if (get_iface_desc(mixer->hostif)->bNumEndpoints < 1) |
6639b6c2 | 2324 | return 0; |
1faa5d07 | 2325 | ep = get_endpoint(mixer->hostif, 0); |
913ae5a2 | 2326 | if (!usb_endpoint_dir_in(ep) || !usb_endpoint_xfer_int(ep)) |
6639b6c2 CL |
2327 | return 0; |
2328 | ||
42a6e66f | 2329 | epnum = usb_endpoint_num(ep); |
6639b6c2 CL |
2330 | buffer_length = le16_to_cpu(ep->wMaxPacketSize); |
2331 | transfer_buffer = kmalloc(buffer_length, GFP_KERNEL); | |
2332 | if (!transfer_buffer) | |
2333 | return -ENOMEM; | |
2334 | mixer->urb = usb_alloc_urb(0, GFP_KERNEL); | |
2335 | if (!mixer->urb) { | |
2336 | kfree(transfer_buffer); | |
2337 | return -ENOMEM; | |
2338 | } | |
2339 | usb_fill_int_urb(mixer->urb, mixer->chip->dev, | |
2340 | usb_rcvintpipe(mixer->chip->dev, epnum), | |
2341 | transfer_buffer, buffer_length, | |
e213e9cf | 2342 | snd_usb_mixer_interrupt, mixer, ep->bInterval); |
6639b6c2 CL |
2343 | usb_submit_urb(mixer->urb, GFP_KERNEL); |
2344 | return 0; | |
2345 | } | |
2346 | ||
7a9b8063 TI |
2347 | int snd_usb_create_mixer(struct snd_usb_audio *chip, int ctrlif, |
2348 | int ignore_error) | |
84957a8a | 2349 | { |
86e07d34 | 2350 | static struct snd_device_ops dev_ops = { |
84957a8a CL |
2351 | .dev_free = snd_usb_mixer_dev_free |
2352 | }; | |
2353 | struct usb_mixer_interface *mixer; | |
ebfdeea3 | 2354 | struct snd_info_entry *entry; |
23caaf19 | 2355 | int err; |
84957a8a CL |
2356 | |
2357 | strcpy(chip->card->mixername, "USB Mixer"); | |
2358 | ||
561b220a | 2359 | mixer = kzalloc(sizeof(*mixer), GFP_KERNEL); |
84957a8a CL |
2360 | if (!mixer) |
2361 | return -ENOMEM; | |
2362 | mixer->chip = chip; | |
7a9b8063 | 2363 | mixer->ignore_ctl_error = ignore_error; |
291186e0 JK |
2364 | mixer->id_elems = kcalloc(MAX_ID_ELEMS, sizeof(*mixer->id_elems), |
2365 | GFP_KERNEL); | |
6639b6c2 CL |
2366 | if (!mixer->id_elems) { |
2367 | kfree(mixer); | |
2368 | return -ENOMEM; | |
2369 | } | |
84957a8a | 2370 | |
1faa5d07 DM |
2371 | mixer->hostif = &usb_ifnum_to_if(chip->dev, ctrlif)->altsetting[0]; |
2372 | switch (get_iface_desc(mixer->hostif)->bInterfaceProtocol) { | |
a2acad82 CL |
2373 | case UAC_VERSION_1: |
2374 | default: | |
2375 | mixer->protocol = UAC_VERSION_1; | |
2376 | break; | |
2377 | case UAC_VERSION_2: | |
2378 | mixer->protocol = UAC_VERSION_2; | |
2379 | break; | |
2380 | } | |
7b8a043f | 2381 | |
6639b6c2 | 2382 | if ((err = snd_usb_mixer_controls(mixer)) < 0 || |
93446edc CL |
2383 | (err = snd_usb_mixer_status_create(mixer)) < 0) |
2384 | goto _error; | |
84957a8a | 2385 | |
7b1eda22 | 2386 | snd_usb_mixer_apply_create_quirk(mixer); |
468b8fde | 2387 | |
9cbb2808 | 2388 | err = snd_device_new(chip->card, SNDRV_DEV_CODEC, mixer, &dev_ops); |
93446edc CL |
2389 | if (err < 0) |
2390 | goto _error; | |
ebfdeea3 JK |
2391 | |
2392 | if (list_empty(&chip->mixer_list) && | |
2393 | !snd_card_proc_new(chip->card, "usbmixer", &entry)) | |
2394 | snd_info_set_text_ops(entry, chip, snd_usb_mixer_proc_read); | |
2395 | ||
84957a8a CL |
2396 | list_add(&mixer->list, &chip->mixer_list); |
2397 | return 0; | |
93446edc CL |
2398 | |
2399 | _error: | |
2400 | snd_usb_mixer_free(mixer); | |
2401 | return err; | |
84957a8a CL |
2402 | } |
2403 | ||
2404 | void snd_usb_mixer_disconnect(struct list_head *p) | |
2405 | { | |
6639b6c2 | 2406 | struct usb_mixer_interface *mixer; |
7b1eda22 | 2407 | |
6639b6c2 | 2408 | mixer = list_entry(p, struct usb_mixer_interface, list); |
68df9de1 MK |
2409 | usb_kill_urb(mixer->urb); |
2410 | usb_kill_urb(mixer->rc_urb); | |
84957a8a | 2411 | } |
400362f1 TI |
2412 | |
2413 | #ifdef CONFIG_PM | |
2414 | /* stop any bus activity of a mixer */ | |
2415 | static void snd_usb_mixer_inactivate(struct usb_mixer_interface *mixer) | |
2416 | { | |
2417 | usb_kill_urb(mixer->urb); | |
2418 | usb_kill_urb(mixer->rc_urb); | |
2419 | } | |
2420 | ||
2421 | static int snd_usb_mixer_activate(struct usb_mixer_interface *mixer) | |
2422 | { | |
2423 | int err; | |
2424 | ||
2425 | if (mixer->urb) { | |
2426 | err = usb_submit_urb(mixer->urb, GFP_NOIO); | |
2427 | if (err < 0) | |
2428 | return err; | |
2429 | } | |
2430 | ||
2431 | return 0; | |
2432 | } | |
2433 | ||
2434 | int snd_usb_mixer_suspend(struct usb_mixer_interface *mixer) | |
2435 | { | |
2436 | snd_usb_mixer_inactivate(mixer); | |
2437 | return 0; | |
2438 | } | |
2439 | ||
2440 | static int restore_mixer_value(struct usb_mixer_elem_info *cval) | |
2441 | { | |
2442 | int c, err, idx; | |
2443 | ||
2444 | if (cval->cmask) { | |
2445 | idx = 0; | |
2446 | for (c = 0; c < MAX_CHANNELS; c++) { | |
2447 | if (!(cval->cmask & (1 << c))) | |
2448 | continue; | |
2449 | if (cval->cached & (1 << c)) { | |
2450 | err = set_cur_mix_value(cval, c + 1, idx, | |
2451 | cval->cache_val[idx]); | |
2452 | if (err < 0) | |
2453 | return err; | |
2454 | } | |
2455 | idx++; | |
2456 | } | |
2457 | } else { | |
2458 | /* master */ | |
2459 | if (cval->cached) { | |
2460 | err = set_cur_mix_value(cval, 0, 0, *cval->cache_val); | |
2461 | if (err < 0) | |
2462 | return err; | |
2463 | } | |
2464 | } | |
2465 | ||
2466 | return 0; | |
2467 | } | |
2468 | ||
2469 | int snd_usb_mixer_resume(struct usb_mixer_interface *mixer, bool reset_resume) | |
2470 | { | |
2471 | struct usb_mixer_elem_info *cval; | |
2472 | int id, err; | |
2473 | ||
2474 | /* FIXME: any mixer quirks? */ | |
2475 | ||
2476 | if (reset_resume) { | |
2477 | /* restore cached mixer values */ | |
2478 | for (id = 0; id < MAX_ID_ELEMS; id++) { | |
2479 | for (cval = mixer->id_elems[id]; cval; | |
2480 | cval = cval->next_id_elem) { | |
2481 | err = restore_mixer_value(cval); | |
2482 | if (err < 0) | |
2483 | return err; | |
2484 | } | |
2485 | } | |
2486 | } | |
2487 | ||
2488 | return snd_usb_mixer_activate(mixer); | |
2489 | } | |
2490 | #endif |