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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> | |
cddaafb9 | 48 | #include <linux/log2.h> |
1da177e4 LT |
49 | #include <linux/slab.h> |
50 | #include <linux/string.h> | |
51 | #include <linux/usb.h> | |
28e1b773 | 52 | #include <linux/usb/audio.h> |
23caaf19 | 53 | #include <linux/usb/audio-v2.h> |
28e1b773 | 54 | |
1da177e4 LT |
55 | #include <sound/core.h> |
56 | #include <sound/control.h> | |
b259b10c | 57 | #include <sound/hwdep.h> |
aafad562 | 58 | #include <sound/info.h> |
7bc5ba7e | 59 | #include <sound/tlv.h> |
1da177e4 LT |
60 | |
61 | #include "usbaudio.h" | |
f0b5e634 | 62 | #include "mixer.h" |
e5779998 | 63 | #include "helper.h" |
7b1eda22 | 64 | #include "mixer_quirks.h" |
88a8516a | 65 | #include "power.h" |
4d1a70da | 66 | |
ebfdeea3 JK |
67 | #define MAX_ID_ELEMS 256 |
68 | ||
1da177e4 LT |
69 | struct usb_audio_term { |
70 | int id; | |
71 | int type; | |
72 | int channels; | |
73 | unsigned int chconfig; | |
74 | int name; | |
75 | }; | |
76 | ||
77 | struct usbmix_name_map; | |
78 | ||
86e07d34 TI |
79 | struct mixer_build { |
80 | struct snd_usb_audio *chip; | |
84957a8a | 81 | struct usb_mixer_interface *mixer; |
1da177e4 LT |
82 | unsigned char *buffer; |
83 | unsigned int buflen; | |
291186e0 | 84 | DECLARE_BITMAP(unitbitmap, MAX_ID_ELEMS); |
86e07d34 | 85 | struct usb_audio_term oterm; |
1da177e4 | 86 | const struct usbmix_name_map *map; |
8e062ec7 | 87 | const struct usbmix_selector_map *selector_map; |
1da177e4 LT |
88 | }; |
89 | ||
1cdfa9f3 | 90 | /*E-mu 0202/0404/0204 eXtension Unit(XU) control*/ |
7d2b451e SK |
91 | enum { |
92 | USB_XU_CLOCK_RATE = 0xe301, | |
93 | USB_XU_CLOCK_SOURCE = 0xe302, | |
94 | USB_XU_DIGITAL_IO_STATUS = 0xe303, | |
95 | USB_XU_DEVICE_OPTIONS = 0xe304, | |
96 | USB_XU_DIRECT_MONITORING = 0xe305, | |
97 | USB_XU_METERING = 0xe306 | |
98 | }; | |
99 | enum { | |
100 | USB_XU_CLOCK_SOURCE_SELECTOR = 0x02, /* clock source*/ | |
101 | USB_XU_CLOCK_RATE_SELECTOR = 0x03, /* clock rate */ | |
102 | USB_XU_DIGITAL_FORMAT_SELECTOR = 0x01, /* the spdif format */ | |
103 | USB_XU_SOFT_LIMIT_SELECTOR = 0x03 /* soft limiter */ | |
104 | }; | |
1da177e4 LT |
105 | |
106 | /* | |
107 | * manual mapping of mixer names | |
108 | * if the mixer topology is too complicated and the parsed names are | |
109 | * ambiguous, add the entries in usbmixer_maps.c. | |
110 | */ | |
f0b5e634 | 111 | #include "mixer_maps.c" |
1da177e4 | 112 | |
c3a3e040 JK |
113 | static const struct usbmix_name_map * |
114 | find_map(struct mixer_build *state, int unitid, int control) | |
1da177e4 | 115 | { |
c3a3e040 | 116 | const struct usbmix_name_map *p = state->map; |
1da177e4 | 117 | |
c3a3e040 JK |
118 | if (!p) |
119 | return NULL; | |
1da177e4 LT |
120 | |
121 | for (p = state->map; p->id; p++) { | |
c3a3e040 JK |
122 | if (p->id == unitid && |
123 | (!control || !p->control || control == p->control)) | |
124 | return p; | |
1da177e4 | 125 | } |
c3a3e040 | 126 | return NULL; |
1da177e4 LT |
127 | } |
128 | ||
c3a3e040 JK |
129 | /* get the mapped name if the unit matches */ |
130 | static int | |
131 | check_mapped_name(const struct usbmix_name_map *p, char *buf, int buflen) | |
1da177e4 | 132 | { |
c3a3e040 JK |
133 | if (!p || !p->name) |
134 | return 0; | |
1da177e4 | 135 | |
c3a3e040 JK |
136 | buflen--; |
137 | return strlcpy(buf, p->name, buflen); | |
138 | } | |
139 | ||
5aeee342 TI |
140 | /* ignore the error value if ignore_ctl_error flag is set */ |
141 | #define filter_error(cval, err) \ | |
3360b84b | 142 | ((cval)->head.mixer->ignore_ctl_error ? 0 : (err)) |
5aeee342 | 143 | |
c3a3e040 JK |
144 | /* check whether the control should be ignored */ |
145 | static inline int | |
146 | check_ignored_ctl(const struct usbmix_name_map *p) | |
147 | { | |
148 | if (!p || p->name || p->dB) | |
1da177e4 | 149 | return 0; |
c3a3e040 JK |
150 | return 1; |
151 | } | |
152 | ||
153 | /* dB mapping */ | |
154 | static inline void check_mapped_dB(const struct usbmix_name_map *p, | |
155 | struct usb_mixer_elem_info *cval) | |
156 | { | |
157 | if (p && p->dB) { | |
158 | cval->dBmin = p->dB->min; | |
159 | cval->dBmax = p->dB->max; | |
38b65190 | 160 | cval->initialized = 1; |
1da177e4 | 161 | } |
1da177e4 LT |
162 | } |
163 | ||
8e062ec7 | 164 | /* get the mapped selector source name */ |
86e07d34 | 165 | static int check_mapped_selector_name(struct mixer_build *state, int unitid, |
8e062ec7 CL |
166 | int index, char *buf, int buflen) |
167 | { | |
168 | const struct usbmix_selector_map *p; | |
169 | ||
6bc170e4 | 170 | if (!state->selector_map) |
8e062ec7 CL |
171 | return 0; |
172 | for (p = state->selector_map; p->id; p++) { | |
173 | if (p->id == unitid && index < p->count) | |
174 | return strlcpy(buf, p->names[index], buflen); | |
175 | } | |
176 | return 0; | |
177 | } | |
178 | ||
1da177e4 LT |
179 | /* |
180 | * find an audio control unit with the given unit id | |
181 | */ | |
6bc170e4 DM |
182 | static void *find_audio_control_unit(struct mixer_build *state, |
183 | unsigned char unit) | |
1da177e4 | 184 | { |
67e1daa0 DM |
185 | /* we just parse the header */ |
186 | struct uac_feature_unit_descriptor *hdr = NULL; | |
187 | ||
188 | while ((hdr = snd_usb_find_desc(state->buffer, state->buflen, hdr, | |
189 | USB_DT_CS_INTERFACE)) != NULL) { | |
190 | if (hdr->bLength >= 4 && | |
191 | hdr->bDescriptorSubtype >= UAC_INPUT_TERMINAL && | |
192 | hdr->bDescriptorSubtype <= UAC2_SAMPLE_RATE_CONVERTER && | |
193 | hdr->bUnitID == unit) | |
194 | return hdr; | |
1da177e4 | 195 | } |
67e1daa0 | 196 | |
1da177e4 LT |
197 | return NULL; |
198 | } | |
199 | ||
1da177e4 LT |
200 | /* |
201 | * copy a string with the given id | |
202 | */ | |
6bc170e4 DM |
203 | static int snd_usb_copy_string_desc(struct mixer_build *state, |
204 | int index, char *buf, int maxlen) | |
1da177e4 LT |
205 | { |
206 | int len = usb_string(state->chip->dev, index, buf, maxlen - 1); | |
207 | buf[len] = 0; | |
208 | return len; | |
209 | } | |
210 | ||
211 | /* | |
212 | * convert from the byte/word on usb descriptor to the zero-based integer | |
213 | */ | |
86e07d34 | 214 | static int convert_signed_value(struct usb_mixer_elem_info *cval, int val) |
1da177e4 LT |
215 | { |
216 | switch (cval->val_type) { | |
217 | case USB_MIXER_BOOLEAN: | |
218 | return !!val; | |
219 | case USB_MIXER_INV_BOOLEAN: | |
220 | return !val; | |
221 | case USB_MIXER_U8: | |
222 | val &= 0xff; | |
223 | break; | |
224 | case USB_MIXER_S8: | |
225 | val &= 0xff; | |
226 | if (val >= 0x80) | |
227 | val -= 0x100; | |
228 | break; | |
229 | case USB_MIXER_U16: | |
230 | val &= 0xffff; | |
231 | break; | |
232 | case USB_MIXER_S16: | |
233 | val &= 0xffff; | |
234 | if (val >= 0x8000) | |
235 | val -= 0x10000; | |
236 | break; | |
237 | } | |
238 | return val; | |
239 | } | |
240 | ||
241 | /* | |
242 | * convert from the zero-based int to the byte/word for usb descriptor | |
243 | */ | |
86e07d34 | 244 | static int convert_bytes_value(struct usb_mixer_elem_info *cval, int val) |
1da177e4 LT |
245 | { |
246 | switch (cval->val_type) { | |
247 | case USB_MIXER_BOOLEAN: | |
248 | return !!val; | |
249 | case USB_MIXER_INV_BOOLEAN: | |
250 | return !val; | |
251 | case USB_MIXER_S8: | |
252 | case USB_MIXER_U8: | |
253 | return val & 0xff; | |
254 | case USB_MIXER_S16: | |
255 | case USB_MIXER_U16: | |
256 | return val & 0xffff; | |
257 | } | |
258 | return 0; /* not reached */ | |
259 | } | |
260 | ||
86e07d34 | 261 | static int get_relative_value(struct usb_mixer_elem_info *cval, int val) |
1da177e4 | 262 | { |
6bc170e4 | 263 | if (!cval->res) |
1da177e4 LT |
264 | cval->res = 1; |
265 | if (val < cval->min) | |
266 | return 0; | |
14790f1c TI |
267 | else if (val >= cval->max) |
268 | return (cval->max - cval->min + cval->res - 1) / cval->res; | |
1da177e4 LT |
269 | else |
270 | return (val - cval->min) / cval->res; | |
271 | } | |
272 | ||
86e07d34 | 273 | static int get_abs_value(struct usb_mixer_elem_info *cval, int val) |
1da177e4 LT |
274 | { |
275 | if (val < 0) | |
276 | return cval->min; | |
6bc170e4 | 277 | if (!cval->res) |
1da177e4 LT |
278 | cval->res = 1; |
279 | val *= cval->res; | |
280 | val += cval->min; | |
281 | if (val > cval->max) | |
282 | return cval->max; | |
283 | return val; | |
284 | } | |
285 | ||
bc18e31c JS |
286 | static int uac2_ctl_value_size(int val_type) |
287 | { | |
288 | switch (val_type) { | |
289 | case USB_MIXER_S32: | |
290 | case USB_MIXER_U32: | |
291 | return 4; | |
292 | case USB_MIXER_S16: | |
293 | case USB_MIXER_U16: | |
294 | return 2; | |
295 | default: | |
296 | return 1; | |
297 | } | |
298 | return 0; /* unreachable */ | |
299 | } | |
300 | ||
1da177e4 LT |
301 | |
302 | /* | |
303 | * retrieve a mixer value | |
304 | */ | |
305 | ||
6bc170e4 DM |
306 | static int get_ctl_value_v1(struct usb_mixer_elem_info *cval, int request, |
307 | int validx, int *value_ret) | |
1da177e4 | 308 | { |
3360b84b | 309 | struct snd_usb_audio *chip = cval->head.mixer->chip; |
1da177e4 LT |
310 | unsigned char buf[2]; |
311 | int val_len = cval->val_type >= USB_MIXER_S16 ? 2 : 1; | |
312 | int timeout = 10; | |
978520b7 | 313 | int idx = 0, err; |
1da177e4 | 314 | |
47ab1545 | 315 | err = snd_usb_lock_shutdown(chip); |
88a8516a ON |
316 | if (err < 0) |
317 | return -EIO; | |
6bc170e4 | 318 | |
1da177e4 | 319 | while (timeout-- > 0) { |
3360b84b | 320 | idx = snd_usb_ctrl_intf(chip) | (cval->head.id << 8); |
3d8d4dcf | 321 | if (snd_usb_ctl_msg(chip->dev, usb_rcvctrlpipe(chip->dev, 0), request, |
1da177e4 | 322 | USB_RECIP_INTERFACE | USB_TYPE_CLASS | USB_DIR_IN, |
978520b7 | 323 | validx, idx, buf, val_len) >= val_len) { |
1da177e4 | 324 | *value_ret = convert_signed_value(cval, snd_usb_combine_bytes(buf, val_len)); |
978520b7 TI |
325 | err = 0; |
326 | goto out; | |
1da177e4 LT |
327 | } |
328 | } | |
0ba41d91 TI |
329 | usb_audio_dbg(chip, |
330 | "cannot get ctl value: req = %#x, wValue = %#x, wIndex = %#x, type = %d\n", | |
331 | request, validx, idx, cval->val_type); | |
978520b7 TI |
332 | err = -EINVAL; |
333 | ||
334 | out: | |
47ab1545 | 335 | snd_usb_unlock_shutdown(chip); |
978520b7 | 336 | return err; |
1da177e4 LT |
337 | } |
338 | ||
6bc170e4 DM |
339 | static int get_ctl_value_v2(struct usb_mixer_elem_info *cval, int request, |
340 | int validx, int *value_ret) | |
23caaf19 | 341 | { |
3360b84b | 342 | struct snd_usb_audio *chip = cval->head.mixer->chip; |
bc18e31c | 343 | unsigned char buf[4 + 3 * sizeof(__u32)]; /* enough space for one range */ |
23caaf19 | 344 | unsigned char *val; |
978520b7 | 345 | int idx = 0, ret, size; |
23caaf19 DM |
346 | __u8 bRequest; |
347 | ||
e8bdb6bb DM |
348 | if (request == UAC_GET_CUR) { |
349 | bRequest = UAC2_CS_CUR; | |
bc18e31c | 350 | size = uac2_ctl_value_size(cval->val_type); |
e8bdb6bb DM |
351 | } else { |
352 | bRequest = UAC2_CS_RANGE; | |
353 | size = sizeof(buf); | |
354 | } | |
355 | ||
356 | memset(buf, 0, sizeof(buf)); | |
23caaf19 | 357 | |
47ab1545 | 358 | ret = snd_usb_lock_shutdown(chip) ? -EIO : 0; |
88a8516a ON |
359 | if (ret) |
360 | goto error; | |
361 | ||
47ab1545 TI |
362 | idx = snd_usb_ctrl_intf(chip) | (cval->head.id << 8); |
363 | ret = snd_usb_ctl_msg(chip->dev, usb_rcvctrlpipe(chip->dev, 0), bRequest, | |
23caaf19 | 364 | USB_RECIP_INTERFACE | USB_TYPE_CLASS | USB_DIR_IN, |
978520b7 | 365 | validx, idx, buf, size); |
47ab1545 | 366 | snd_usb_unlock_shutdown(chip); |
23caaf19 DM |
367 | |
368 | if (ret < 0) { | |
88a8516a | 369 | error: |
0ba41d91 TI |
370 | usb_audio_err(chip, |
371 | "cannot get ctl value: req = %#x, wValue = %#x, wIndex = %#x, type = %d\n", | |
372 | request, validx, idx, cval->val_type); | |
23caaf19 DM |
373 | return ret; |
374 | } | |
375 | ||
e8bdb6bb DM |
376 | /* FIXME: how should we handle multiple triplets here? */ |
377 | ||
23caaf19 DM |
378 | switch (request) { |
379 | case UAC_GET_CUR: | |
380 | val = buf; | |
381 | break; | |
382 | case UAC_GET_MIN: | |
383 | val = buf + sizeof(__u16); | |
384 | break; | |
385 | case UAC_GET_MAX: | |
386 | val = buf + sizeof(__u16) * 2; | |
387 | break; | |
388 | case UAC_GET_RES: | |
389 | val = buf + sizeof(__u16) * 3; | |
390 | break; | |
391 | default: | |
392 | return -EINVAL; | |
393 | } | |
394 | ||
395 | *value_ret = convert_signed_value(cval, snd_usb_combine_bytes(val, sizeof(__u16))); | |
396 | ||
397 | return 0; | |
398 | } | |
399 | ||
6bc170e4 DM |
400 | static int get_ctl_value(struct usb_mixer_elem_info *cval, int request, |
401 | int validx, int *value_ret) | |
23caaf19 | 402 | { |
9f814105 EZ |
403 | validx += cval->idx_off; |
404 | ||
3360b84b | 405 | return (cval->head.mixer->protocol == UAC_VERSION_1) ? |
23caaf19 DM |
406 | get_ctl_value_v1(cval, request, validx, value_ret) : |
407 | get_ctl_value_v2(cval, request, validx, value_ret); | |
408 | } | |
409 | ||
6bc170e4 DM |
410 | static int get_cur_ctl_value(struct usb_mixer_elem_info *cval, |
411 | int validx, int *value) | |
1da177e4 | 412 | { |
de48c7bc | 413 | return get_ctl_value(cval, UAC_GET_CUR, validx, value); |
1da177e4 LT |
414 | } |
415 | ||
416 | /* channel = 0: master, 1 = first channel */ | |
641b4879 TI |
417 | static inline int get_cur_mix_raw(struct usb_mixer_elem_info *cval, |
418 | int channel, int *value) | |
1da177e4 | 419 | { |
6bc170e4 DM |
420 | return get_ctl_value(cval, UAC_GET_CUR, |
421 | (cval->control << 8) | channel, | |
422 | value); | |
1da177e4 LT |
423 | } |
424 | ||
eef90451 | 425 | int snd_usb_get_cur_mix_value(struct usb_mixer_elem_info *cval, |
641b4879 TI |
426 | int channel, int index, int *value) |
427 | { | |
428 | int err; | |
429 | ||
430 | if (cval->cached & (1 << channel)) { | |
431 | *value = cval->cache_val[index]; | |
432 | return 0; | |
433 | } | |
434 | err = get_cur_mix_raw(cval, channel, value); | |
435 | if (err < 0) { | |
3360b84b TI |
436 | if (!cval->head.mixer->ignore_ctl_error) |
437 | usb_audio_dbg(cval->head.mixer->chip, | |
0ba41d91 | 438 | "cannot get current value for control %d ch %d: err = %d\n", |
6bc170e4 | 439 | cval->control, channel, err); |
641b4879 TI |
440 | return err; |
441 | } | |
442 | cval->cached |= 1 << channel; | |
443 | cval->cache_val[index] = *value; | |
444 | return 0; | |
445 | } | |
446 | ||
1da177e4 LT |
447 | /* |
448 | * set a mixer value | |
449 | */ | |
450 | ||
7b1eda22 DM |
451 | int snd_usb_mixer_set_ctl_value(struct usb_mixer_elem_info *cval, |
452 | int request, int validx, int value_set) | |
1da177e4 | 453 | { |
3360b84b | 454 | struct snd_usb_audio *chip = cval->head.mixer->chip; |
bc18e31c | 455 | unsigned char buf[4]; |
978520b7 | 456 | int idx = 0, val_len, err, timeout = 10; |
23caaf19 | 457 | |
9f814105 EZ |
458 | validx += cval->idx_off; |
459 | ||
3360b84b | 460 | if (cval->head.mixer->protocol == UAC_VERSION_1) { |
23caaf19 DM |
461 | val_len = cval->val_type >= USB_MIXER_S16 ? 2 : 1; |
462 | } else { /* UAC_VERSION_2 */ | |
bc18e31c | 463 | val_len = uac2_ctl_value_size(cval->val_type); |
23caaf19 DM |
464 | |
465 | /* FIXME */ | |
466 | if (request != UAC_SET_CUR) { | |
0ba41d91 | 467 | usb_audio_dbg(chip, "RANGE setting not yet supported\n"); |
23caaf19 DM |
468 | return -EINVAL; |
469 | } | |
470 | ||
471 | request = UAC2_CS_CUR; | |
472 | } | |
1da177e4 LT |
473 | |
474 | value_set = convert_bytes_value(cval, value_set); | |
475 | buf[0] = value_set & 0xff; | |
476 | buf[1] = (value_set >> 8) & 0xff; | |
bc18e31c JS |
477 | buf[2] = (value_set >> 16) & 0xff; |
478 | buf[3] = (value_set >> 24) & 0xff; | |
47ab1545 TI |
479 | |
480 | err = snd_usb_lock_shutdown(chip); | |
88a8516a ON |
481 | if (err < 0) |
482 | return -EIO; | |
47ab1545 | 483 | |
978520b7 | 484 | while (timeout-- > 0) { |
3360b84b | 485 | idx = snd_usb_ctrl_intf(chip) | (cval->head.id << 8); |
3d8d4dcf DM |
486 | if (snd_usb_ctl_msg(chip->dev, |
487 | usb_sndctrlpipe(chip->dev, 0), request, | |
1da177e4 | 488 | USB_RECIP_INTERFACE | USB_TYPE_CLASS | USB_DIR_OUT, |
978520b7 TI |
489 | validx, idx, buf, val_len) >= 0) { |
490 | err = 0; | |
491 | goto out; | |
88a8516a | 492 | } |
978520b7 | 493 | } |
0ba41d91 | 494 | usb_audio_dbg(chip, "cannot set ctl value: req = %#x, wValue = %#x, wIndex = %#x, type = %d, data = %#x/%#x\n", |
6bc170e4 | 495 | request, validx, idx, cval->val_type, buf[0], buf[1]); |
978520b7 TI |
496 | err = -EINVAL; |
497 | ||
498 | out: | |
47ab1545 | 499 | snd_usb_unlock_shutdown(chip); |
978520b7 | 500 | return err; |
1da177e4 LT |
501 | } |
502 | ||
6bc170e4 DM |
503 | static int set_cur_ctl_value(struct usb_mixer_elem_info *cval, |
504 | int validx, int value) | |
1da177e4 | 505 | { |
7b1eda22 | 506 | return snd_usb_mixer_set_ctl_value(cval, UAC_SET_CUR, validx, value); |
1da177e4 LT |
507 | } |
508 | ||
eef90451 | 509 | int snd_usb_set_cur_mix_value(struct usb_mixer_elem_info *cval, int channel, |
641b4879 | 510 | int index, int value) |
1da177e4 | 511 | { |
641b4879 | 512 | int err; |
a6a33259 DM |
513 | unsigned int read_only = (channel == 0) ? |
514 | cval->master_readonly : | |
515 | cval->ch_readonly & (1 << (channel - 1)); | |
516 | ||
517 | if (read_only) { | |
3360b84b | 518 | usb_audio_dbg(cval->head.mixer->chip, |
0ba41d91 | 519 | "%s(): channel %d of control %d is read_only\n", |
a6a33259 DM |
520 | __func__, channel, cval->control); |
521 | return 0; | |
522 | } | |
523 | ||
6bc170e4 DM |
524 | err = snd_usb_mixer_set_ctl_value(cval, |
525 | UAC_SET_CUR, (cval->control << 8) | channel, | |
526 | value); | |
641b4879 TI |
527 | if (err < 0) |
528 | return err; | |
529 | cval->cached |= 1 << channel; | |
530 | cval->cache_val[index] = value; | |
531 | return 0; | |
1da177e4 LT |
532 | } |
533 | ||
7bc5ba7e TI |
534 | /* |
535 | * TLV callback for mixer volume controls | |
536 | */ | |
285de9c0 | 537 | int snd_usb_mixer_vol_tlv(struct snd_kcontrol *kcontrol, int op_flag, |
7bc5ba7e TI |
538 | unsigned int size, unsigned int __user *_tlv) |
539 | { | |
540 | struct usb_mixer_elem_info *cval = kcontrol->private_data; | |
b8e1c73f | 541 | DECLARE_TLV_DB_MINMAX(scale, 0, 0); |
7bc5ba7e TI |
542 | |
543 | if (size < sizeof(scale)) | |
544 | return -ENOMEM; | |
0f174b35 TI |
545 | if (cval->min_mute) |
546 | scale[0] = SNDRV_CTL_TLVT_DB_MINMAX_MUTE; | |
c3a3e040 JK |
547 | scale[2] = cval->dBmin; |
548 | scale[3] = cval->dBmax; | |
7bc5ba7e TI |
549 | if (copy_to_user(_tlv, scale, sizeof(scale))) |
550 | return -EFAULT; | |
551 | return 0; | |
552 | } | |
1da177e4 LT |
553 | |
554 | /* | |
555 | * parser routines begin here... | |
556 | */ | |
557 | ||
86e07d34 | 558 | static int parse_audio_unit(struct mixer_build *state, int unitid); |
1da177e4 LT |
559 | |
560 | ||
561 | /* | |
562 | * check if the input/output channel routing is enabled on the given bitmap. | |
563 | * used for mixer unit parser | |
564 | */ | |
6bc170e4 DM |
565 | static int check_matrix_bitmap(unsigned char *bmap, |
566 | int ich, int och, int num_outs) | |
1da177e4 LT |
567 | { |
568 | int idx = ich * num_outs + och; | |
569 | return bmap[idx >> 3] & (0x80 >> (idx & 7)); | |
570 | } | |
571 | ||
1da177e4 LT |
572 | /* |
573 | * add an alsa control element | |
574 | * search and increment the index until an empty slot is found. | |
575 | * | |
576 | * if failed, give up and free the control instance. | |
577 | */ | |
578 | ||
3360b84b | 579 | int snd_usb_mixer_add_control(struct usb_mixer_elem_list *list, |
ef9d5970 | 580 | struct snd_kcontrol *kctl) |
1da177e4 | 581 | { |
3360b84b | 582 | struct usb_mixer_interface *mixer = list->mixer; |
1da177e4 | 583 | int err; |
84957a8a | 584 | |
ef9d5970 | 585 | while (snd_ctl_find_id(mixer->chip->card, &kctl->id)) |
1da177e4 | 586 | kctl->id.index++; |
ef9d5970 | 587 | if ((err = snd_ctl_add(mixer->chip->card, kctl)) < 0) { |
6bc170e4 DM |
588 | usb_audio_dbg(mixer->chip, "cannot add control (err = %d)\n", |
589 | err); | |
6639b6c2 | 590 | return err; |
1da177e4 | 591 | } |
3360b84b TI |
592 | list->kctl = kctl; |
593 | list->next_id_elem = mixer->id_elems[list->id]; | |
594 | mixer->id_elems[list->id] = list; | |
6639b6c2 | 595 | return 0; |
1da177e4 LT |
596 | } |
597 | ||
1da177e4 LT |
598 | /* |
599 | * get a terminal name string | |
600 | */ | |
601 | ||
602 | static struct iterm_name_combo { | |
603 | int type; | |
604 | char *name; | |
605 | } iterm_names[] = { | |
606 | { 0x0300, "Output" }, | |
607 | { 0x0301, "Speaker" }, | |
608 | { 0x0302, "Headphone" }, | |
609 | { 0x0303, "HMD Audio" }, | |
610 | { 0x0304, "Desktop Speaker" }, | |
611 | { 0x0305, "Room Speaker" }, | |
612 | { 0x0306, "Com Speaker" }, | |
613 | { 0x0307, "LFE" }, | |
614 | { 0x0600, "External In" }, | |
615 | { 0x0601, "Analog In" }, | |
616 | { 0x0602, "Digital In" }, | |
617 | { 0x0603, "Line" }, | |
618 | { 0x0604, "Legacy In" }, | |
619 | { 0x0605, "IEC958 In" }, | |
620 | { 0x0606, "1394 DA Stream" }, | |
621 | { 0x0607, "1394 DV Stream" }, | |
622 | { 0x0700, "Embedded" }, | |
623 | { 0x0701, "Noise Source" }, | |
624 | { 0x0702, "Equalization Noise" }, | |
625 | { 0x0703, "CD" }, | |
626 | { 0x0704, "DAT" }, | |
627 | { 0x0705, "DCC" }, | |
628 | { 0x0706, "MiniDisk" }, | |
629 | { 0x0707, "Analog Tape" }, | |
630 | { 0x0708, "Phonograph" }, | |
631 | { 0x0709, "VCR Audio" }, | |
632 | { 0x070a, "Video Disk Audio" }, | |
633 | { 0x070b, "DVD Audio" }, | |
634 | { 0x070c, "TV Tuner Audio" }, | |
635 | { 0x070d, "Satellite Rec Audio" }, | |
636 | { 0x070e, "Cable Tuner Audio" }, | |
637 | { 0x070f, "DSS Audio" }, | |
638 | { 0x0710, "Radio Receiver" }, | |
639 | { 0x0711, "Radio Transmitter" }, | |
640 | { 0x0712, "Multi-Track Recorder" }, | |
641 | { 0x0713, "Synthesizer" }, | |
642 | { 0 }, | |
643 | }; | |
644 | ||
86e07d34 | 645 | static int get_term_name(struct mixer_build *state, struct usb_audio_term *iterm, |
1da177e4 LT |
646 | unsigned char *name, int maxlen, int term_only) |
647 | { | |
648 | struct iterm_name_combo *names; | |
649 | ||
650 | if (iterm->name) | |
6bc170e4 DM |
651 | return snd_usb_copy_string_desc(state, iterm->name, |
652 | name, maxlen); | |
1da177e4 LT |
653 | |
654 | /* virtual type - not a real terminal */ | |
655 | if (iterm->type >> 16) { | |
656 | if (term_only) | |
657 | return 0; | |
658 | switch (iterm->type >> 16) { | |
de48c7bc | 659 | case UAC_SELECTOR_UNIT: |
6bc170e4 DM |
660 | strcpy(name, "Selector"); |
661 | return 8; | |
69da9bcb | 662 | case UAC1_PROCESSING_UNIT: |
6bc170e4 DM |
663 | strcpy(name, "Process Unit"); |
664 | return 12; | |
69da9bcb | 665 | case UAC1_EXTENSION_UNIT: |
6bc170e4 DM |
666 | strcpy(name, "Ext Unit"); |
667 | return 8; | |
de48c7bc | 668 | case UAC_MIXER_UNIT: |
6bc170e4 DM |
669 | strcpy(name, "Mixer"); |
670 | return 5; | |
1da177e4 LT |
671 | default: |
672 | return sprintf(name, "Unit %d", iterm->id); | |
673 | } | |
674 | } | |
675 | ||
676 | switch (iterm->type & 0xff00) { | |
677 | case 0x0100: | |
6bc170e4 DM |
678 | strcpy(name, "PCM"); |
679 | return 3; | |
1da177e4 | 680 | case 0x0200: |
6bc170e4 DM |
681 | strcpy(name, "Mic"); |
682 | return 3; | |
1da177e4 | 683 | case 0x0400: |
6bc170e4 DM |
684 | strcpy(name, "Headset"); |
685 | return 7; | |
1da177e4 | 686 | case 0x0500: |
6bc170e4 DM |
687 | strcpy(name, "Phone"); |
688 | return 5; | |
1da177e4 LT |
689 | } |
690 | ||
6bc170e4 | 691 | for (names = iterm_names; names->type; names++) { |
1da177e4 LT |
692 | if (names->type == iterm->type) { |
693 | strcpy(name, names->name); | |
694 | return strlen(names->name); | |
695 | } | |
6bc170e4 DM |
696 | } |
697 | ||
1da177e4 LT |
698 | return 0; |
699 | } | |
700 | ||
1da177e4 LT |
701 | /* |
702 | * parse the source unit recursively until it reaches to a terminal | |
703 | * or a branched unit. | |
704 | */ | |
6bc170e4 DM |
705 | static int check_input_term(struct mixer_build *state, int id, |
706 | struct usb_audio_term *term) | |
1da177e4 | 707 | { |
09414207 | 708 | int err; |
23caaf19 | 709 | void *p1; |
1da177e4 LT |
710 | |
711 | memset(term, 0, sizeof(*term)); | |
712 | while ((p1 = find_audio_control_unit(state, id)) != NULL) { | |
23caaf19 | 713 | unsigned char *hdr = p1; |
1da177e4 | 714 | term->id = id; |
23caaf19 | 715 | switch (hdr[2]) { |
de48c7bc | 716 | case UAC_INPUT_TERMINAL: |
23caaf19 DM |
717 | if (state->mixer->protocol == UAC_VERSION_1) { |
718 | struct uac_input_terminal_descriptor *d = p1; | |
719 | term->type = le16_to_cpu(d->wTerminalType); | |
720 | term->channels = d->bNrChannels; | |
721 | term->chconfig = le16_to_cpu(d->wChannelConfig); | |
722 | term->name = d->iTerminal; | |
723 | } else { /* UAC_VERSION_2 */ | |
724 | struct uac2_input_terminal_descriptor *d = p1; | |
09414207 | 725 | |
9430e547 JS |
726 | /* call recursively to verify that the |
727 | * referenced clock entity is valid */ | |
09414207 DM |
728 | err = check_input_term(state, d->bCSourceID, term); |
729 | if (err < 0) | |
730 | return err; | |
9430e547 JS |
731 | |
732 | /* save input term properties after recursion, | |
733 | * to ensure they are not overriden by the | |
734 | * recursion calls */ | |
735 | term->id = id; | |
736 | term->type = le16_to_cpu(d->wTerminalType); | |
737 | term->channels = d->bNrChannels; | |
738 | term->chconfig = le32_to_cpu(d->bmChannelConfig); | |
739 | term->name = d->iTerminal; | |
23caaf19 | 740 | } |
1da177e4 | 741 | return 0; |
23caaf19 DM |
742 | case UAC_FEATURE_UNIT: { |
743 | /* the header is the same for v1 and v2 */ | |
744 | struct uac_feature_unit_descriptor *d = p1; | |
5e688883 | 745 | id = d->bSourceID; |
1da177e4 | 746 | break; /* continue to parse */ |
23caaf19 DM |
747 | } |
748 | case UAC_MIXER_UNIT: { | |
749 | struct uac_mixer_unit_descriptor *d = p1; | |
750 | term->type = d->bDescriptorSubtype << 16; /* virtual type */ | |
751 | term->channels = uac_mixer_unit_bNrChannels(d); | |
752 | term->chconfig = uac_mixer_unit_wChannelConfig(d, state->mixer->protocol); | |
753 | term->name = uac_mixer_unit_iMixer(d); | |
1da177e4 | 754 | return 0; |
23caaf19 | 755 | } |
09414207 DM |
756 | case UAC_SELECTOR_UNIT: |
757 | case UAC2_CLOCK_SELECTOR: { | |
23caaf19 | 758 | struct uac_selector_unit_descriptor *d = p1; |
1da177e4 | 759 | /* call recursively to retrieve the channel info */ |
4d7b86c9 DM |
760 | err = check_input_term(state, d->baSourceID[0], term); |
761 | if (err < 0) | |
762 | return err; | |
23caaf19 | 763 | term->type = d->bDescriptorSubtype << 16; /* virtual type */ |
1da177e4 | 764 | term->id = id; |
23caaf19 | 765 | term->name = uac_selector_unit_iSelector(d); |
1da177e4 | 766 | return 0; |
23caaf19 | 767 | } |
69da9bcb | 768 | case UAC1_PROCESSING_UNIT: |
5dae5fd2 EZ |
769 | case UAC1_EXTENSION_UNIT: |
770 | /* UAC2_PROCESSING_UNIT_V2 */ | |
61ac5130 TH |
771 | /* UAC2_EFFECT_UNIT */ |
772 | case UAC2_EXTENSION_UNIT_V2: { | |
23caaf19 | 773 | struct uac_processing_unit_descriptor *d = p1; |
5dae5fd2 EZ |
774 | |
775 | if (state->mixer->protocol == UAC_VERSION_2 && | |
776 | hdr[2] == UAC2_EFFECT_UNIT) { | |
777 | /* UAC2/UAC1 unit IDs overlap here in an | |
778 | * uncompatible way. Ignore this unit for now. | |
779 | */ | |
780 | return 0; | |
781 | } | |
782 | ||
23caaf19 DM |
783 | if (d->bNrInPins) { |
784 | id = d->baSourceID[0]; | |
1da177e4 LT |
785 | break; /* continue to parse */ |
786 | } | |
23caaf19 DM |
787 | term->type = d->bDescriptorSubtype << 16; /* virtual type */ |
788 | term->channels = uac_processing_unit_bNrChannels(d); | |
789 | term->chconfig = uac_processing_unit_wChannelConfig(d, state->mixer->protocol); | |
790 | term->name = uac_processing_unit_iProcessing(d, state->mixer->protocol); | |
1da177e4 | 791 | return 0; |
23caaf19 | 792 | } |
09414207 DM |
793 | case UAC2_CLOCK_SOURCE: { |
794 | struct uac_clock_source_descriptor *d = p1; | |
795 | term->type = d->bDescriptorSubtype << 16; /* virtual type */ | |
796 | term->id = id; | |
797 | term->name = d->iClockSource; | |
798 | return 0; | |
799 | } | |
1da177e4 LT |
800 | default: |
801 | return -ENODEV; | |
802 | } | |
803 | } | |
804 | return -ENODEV; | |
805 | } | |
806 | ||
1da177e4 LT |
807 | /* |
808 | * Feature Unit | |
809 | */ | |
810 | ||
811 | /* feature unit control information */ | |
812 | struct usb_feature_control_info { | |
813 | const char *name; | |
bc18e31c JS |
814 | int type; /* data type for uac1 */ |
815 | int type_uac2; /* data type for uac2 if different from uac1, else -1 */ | |
1da177e4 LT |
816 | }; |
817 | ||
818 | static struct usb_feature_control_info audio_feature_info[] = { | |
bc18e31c JS |
819 | { "Mute", USB_MIXER_INV_BOOLEAN, -1 }, |
820 | { "Volume", USB_MIXER_S16, -1 }, | |
821 | { "Tone Control - Bass", USB_MIXER_S8, -1 }, | |
822 | { "Tone Control - Mid", USB_MIXER_S8, -1 }, | |
823 | { "Tone Control - Treble", USB_MIXER_S8, -1 }, | |
824 | { "Graphic Equalizer", USB_MIXER_S8, -1 }, /* FIXME: not implemeted yet */ | |
825 | { "Auto Gain Control", USB_MIXER_BOOLEAN, -1 }, | |
826 | { "Delay Control", USB_MIXER_U16, USB_MIXER_U32 }, | |
827 | { "Bass Boost", USB_MIXER_BOOLEAN, -1 }, | |
828 | { "Loudness", USB_MIXER_BOOLEAN, -1 }, | |
2e0281d1 | 829 | /* UAC2 specific */ |
bc18e31c JS |
830 | { "Input Gain Control", USB_MIXER_S16, -1 }, |
831 | { "Input Gain Pad Control", USB_MIXER_S16, -1 }, | |
832 | { "Phase Inverter Control", USB_MIXER_BOOLEAN, -1 }, | |
1da177e4 LT |
833 | }; |
834 | ||
1da177e4 | 835 | /* private_free callback */ |
eef90451 | 836 | void snd_usb_mixer_elem_free(struct snd_kcontrol *kctl) |
1da177e4 | 837 | { |
4d572776 JJ |
838 | kfree(kctl->private_data); |
839 | kctl->private_data = NULL; | |
1da177e4 LT |
840 | } |
841 | ||
1da177e4 LT |
842 | /* |
843 | * interface to ALSA control for feature/mixer units | |
844 | */ | |
845 | ||
dcaaf9f2 TI |
846 | /* volume control quirks */ |
847 | static void volume_control_quirks(struct usb_mixer_elem_info *cval, | |
848 | struct snd_kcontrol *kctl) | |
849 | { | |
3360b84b | 850 | struct snd_usb_audio *chip = cval->head.mixer->chip; |
0ba41d91 | 851 | switch (chip->usb_id) { |
d50ed624 | 852 | case USB_ID(0x0763, 0x2030): /* M-Audio Fast Track C400 */ |
e9a25e04 | 853 | case USB_ID(0x0763, 0x2031): /* M-Audio Fast Track C600 */ |
d50ed624 EZ |
854 | if (strcmp(kctl->id.name, "Effect Duration") == 0) { |
855 | cval->min = 0x0000; | |
856 | cval->max = 0xffff; | |
857 | cval->res = 0x00e6; | |
858 | break; | |
859 | } | |
860 | if (strcmp(kctl->id.name, "Effect Volume") == 0 || | |
861 | strcmp(kctl->id.name, "Effect Feedback Volume") == 0) { | |
862 | cval->min = 0x00; | |
863 | cval->max = 0xff; | |
864 | break; | |
865 | } | |
866 | if (strstr(kctl->id.name, "Effect Return") != NULL) { | |
867 | cval->min = 0xb706; | |
868 | cval->max = 0xff7b; | |
869 | cval->res = 0x0073; | |
870 | break; | |
871 | } | |
872 | if ((strstr(kctl->id.name, "Playback Volume") != NULL) || | |
873 | (strstr(kctl->id.name, "Effect Send") != NULL)) { | |
874 | cval->min = 0xb5fb; /* -73 dB = 0xb6ff */ | |
875 | cval->max = 0xfcfe; | |
876 | cval->res = 0x0073; | |
877 | } | |
878 | break; | |
879 | ||
d34bf148 FH |
880 | case USB_ID(0x0763, 0x2081): /* M-Audio Fast Track Ultra 8R */ |
881 | case USB_ID(0x0763, 0x2080): /* M-Audio Fast Track Ultra */ | |
882 | if (strcmp(kctl->id.name, "Effect Duration") == 0) { | |
0ba41d91 TI |
883 | usb_audio_info(chip, |
884 | "set quirk for FTU Effect Duration\n"); | |
d34bf148 FH |
885 | cval->min = 0x0000; |
886 | cval->max = 0x7f00; | |
887 | cval->res = 0x0100; | |
888 | break; | |
889 | } | |
890 | if (strcmp(kctl->id.name, "Effect Volume") == 0 || | |
891 | strcmp(kctl->id.name, "Effect Feedback Volume") == 0) { | |
0ba41d91 TI |
892 | usb_audio_info(chip, |
893 | "set quirks for FTU Effect Feedback/Volume\n"); | |
d34bf148 FH |
894 | cval->min = 0x00; |
895 | cval->max = 0x7f; | |
896 | break; | |
897 | } | |
898 | break; | |
899 | ||
dcaaf9f2 TI |
900 | case USB_ID(0x0471, 0x0101): |
901 | case USB_ID(0x0471, 0x0104): | |
902 | case USB_ID(0x0471, 0x0105): | |
903 | case USB_ID(0x0672, 0x1041): | |
904 | /* quirk for UDA1321/N101. | |
905 | * note that detection between firmware 2.1.1.7 (N101) | |
906 | * and later 2.1.1.21 is not very clear from datasheets. | |
907 | * I hope that the min value is -15360 for newer firmware --jk | |
908 | */ | |
909 | if (!strcmp(kctl->id.name, "PCM Playback Volume") && | |
910 | cval->min == -15616) { | |
0ba41d91 | 911 | usb_audio_info(chip, |
dcaaf9f2 TI |
912 | "set volume quirk for UDA1321/N101 chip\n"); |
913 | cval->max = -256; | |
914 | } | |
915 | break; | |
916 | ||
917 | case USB_ID(0x046d, 0x09a4): | |
918 | if (!strcmp(kctl->id.name, "Mic Capture Volume")) { | |
0ba41d91 | 919 | usb_audio_info(chip, |
dcaaf9f2 TI |
920 | "set volume quirk for QuickCam E3500\n"); |
921 | cval->min = 6080; | |
922 | cval->max = 8768; | |
923 | cval->res = 192; | |
924 | } | |
925 | break; | |
926 | ||
e805ca8b | 927 | case USB_ID(0x046d, 0x0807): /* Logitech Webcam C500 */ |
dcaaf9f2 TI |
928 | case USB_ID(0x046d, 0x0808): |
929 | case USB_ID(0x046d, 0x0809): | |
64559311 | 930 | case USB_ID(0x046d, 0x0819): /* Logitech Webcam C210 */ |
36691e1b | 931 | case USB_ID(0x046d, 0x081b): /* HD Webcam c310 */ |
55c0008b | 932 | case USB_ID(0x046d, 0x081d): /* HD Webcam c510 */ |
11e7064f | 933 | case USB_ID(0x046d, 0x0825): /* HD Webcam c270 */ |
140d37de | 934 | case USB_ID(0x046d, 0x0826): /* HD Webcam c525 */ |
1ef9f058 | 935 | case USB_ID(0x046d, 0x08ca): /* Logitech Quickcam Fusion */ |
dcaaf9f2 | 936 | case USB_ID(0x046d, 0x0991): |
82ffb6fc | 937 | case USB_ID(0x046d, 0x09a2): /* QuickCam Communicate Deluxe/S7500 */ |
dcaaf9f2 TI |
938 | /* Most audio usb devices lie about volume resolution. |
939 | * Most Logitech webcams have res = 384. | |
82ffb6fc | 940 | * Probably there is some logitech magic behind this number --fishor |
dcaaf9f2 TI |
941 | */ |
942 | if (!strcmp(kctl->id.name, "Mic Capture Volume")) { | |
0ba41d91 | 943 | usb_audio_info(chip, |
dcaaf9f2 TI |
944 | "set resolution quirk: cval->res = 384\n"); |
945 | cval->res = 384; | |
946 | } | |
947 | break; | |
dcaaf9f2 TI |
948 | } |
949 | } | |
950 | ||
1da177e4 LT |
951 | /* |
952 | * retrieve the minimum and maximum values for the specified control | |
953 | */ | |
dcaaf9f2 TI |
954 | static int get_min_max_with_quirks(struct usb_mixer_elem_info *cval, |
955 | int default_min, struct snd_kcontrol *kctl) | |
1da177e4 LT |
956 | { |
957 | /* for failsafe */ | |
958 | cval->min = default_min; | |
959 | cval->max = cval->min + 1; | |
960 | cval->res = 1; | |
c3a3e040 | 961 | cval->dBmin = cval->dBmax = 0; |
1da177e4 LT |
962 | |
963 | if (cval->val_type == USB_MIXER_BOOLEAN || | |
964 | cval->val_type == USB_MIXER_INV_BOOLEAN) { | |
965 | cval->initialized = 1; | |
966 | } else { | |
967 | int minchn = 0; | |
968 | if (cval->cmask) { | |
969 | int i; | |
970 | for (i = 0; i < MAX_CHANNELS; i++) | |
971 | if (cval->cmask & (1 << i)) { | |
972 | minchn = i + 1; | |
973 | break; | |
974 | } | |
975 | } | |
de48c7bc DM |
976 | if (get_ctl_value(cval, UAC_GET_MAX, (cval->control << 8) | minchn, &cval->max) < 0 || |
977 | get_ctl_value(cval, UAC_GET_MIN, (cval->control << 8) | minchn, &cval->min) < 0) { | |
3360b84b | 978 | usb_audio_err(cval->head.mixer->chip, |
0ba41d91 | 979 | "%d:%d: cannot get min/max values for control %d (id %d)\n", |
3360b84b TI |
980 | cval->head.id, snd_usb_ctrl_intf(cval->head.mixer->chip), |
981 | cval->control, cval->head.id); | |
1da177e4 LT |
982 | return -EINVAL; |
983 | } | |
6bc170e4 DM |
984 | if (get_ctl_value(cval, UAC_GET_RES, |
985 | (cval->control << 8) | minchn, | |
986 | &cval->res) < 0) { | |
1da177e4 LT |
987 | cval->res = 1; |
988 | } else { | |
989 | int last_valid_res = cval->res; | |
990 | ||
991 | while (cval->res > 1) { | |
7b1eda22 | 992 | if (snd_usb_mixer_set_ctl_value(cval, UAC_SET_RES, |
6bc170e4 DM |
993 | (cval->control << 8) | minchn, |
994 | cval->res / 2) < 0) | |
1da177e4 LT |
995 | break; |
996 | cval->res /= 2; | |
997 | } | |
6bc170e4 DM |
998 | if (get_ctl_value(cval, UAC_GET_RES, |
999 | (cval->control << 8) | minchn, &cval->res) < 0) | |
1da177e4 LT |
1000 | cval->res = last_valid_res; |
1001 | } | |
1002 | if (cval->res == 0) | |
1003 | cval->res = 1; | |
14790f1c TI |
1004 | |
1005 | /* Additional checks for the proper resolution | |
1006 | * | |
1007 | * Some devices report smaller resolutions than actually | |
1008 | * reacting. They don't return errors but simply clip | |
1009 | * to the lower aligned value. | |
1010 | */ | |
1011 | if (cval->min + cval->res < cval->max) { | |
1012 | int last_valid_res = cval->res; | |
1013 | int saved, test, check; | |
641b4879 | 1014 | get_cur_mix_raw(cval, minchn, &saved); |
14790f1c TI |
1015 | for (;;) { |
1016 | test = saved; | |
1017 | if (test < cval->max) | |
1018 | test += cval->res; | |
1019 | else | |
1020 | test -= cval->res; | |
1021 | if (test < cval->min || test > cval->max || | |
eef90451 | 1022 | snd_usb_set_cur_mix_value(cval, minchn, 0, test) || |
641b4879 | 1023 | get_cur_mix_raw(cval, minchn, &check)) { |
14790f1c TI |
1024 | cval->res = last_valid_res; |
1025 | break; | |
1026 | } | |
1027 | if (test == check) | |
1028 | break; | |
1029 | cval->res *= 2; | |
1030 | } | |
eef90451 | 1031 | snd_usb_set_cur_mix_value(cval, minchn, 0, saved); |
14790f1c TI |
1032 | } |
1033 | ||
1da177e4 LT |
1034 | cval->initialized = 1; |
1035 | } | |
c3a3e040 | 1036 | |
dcaaf9f2 TI |
1037 | if (kctl) |
1038 | volume_control_quirks(cval, kctl); | |
1039 | ||
c3a3e040 JK |
1040 | /* USB descriptions contain the dB scale in 1/256 dB unit |
1041 | * while ALSA TLV contains in 1/100 dB unit | |
1042 | */ | |
1043 | cval->dBmin = (convert_signed_value(cval, cval->min) * 100) / 256; | |
1044 | cval->dBmax = (convert_signed_value(cval, cval->max) * 100) / 256; | |
1045 | if (cval->dBmin > cval->dBmax) { | |
1046 | /* something is wrong; assume it's either from/to 0dB */ | |
1047 | if (cval->dBmin < 0) | |
1048 | cval->dBmax = 0; | |
1049 | else if (cval->dBmin > 0) | |
1050 | cval->dBmin = 0; | |
1051 | if (cval->dBmin > cval->dBmax) { | |
1052 | /* totally crap, return an error */ | |
1053 | return -EINVAL; | |
1054 | } | |
1055 | } | |
1056 | ||
1da177e4 LT |
1057 | return 0; |
1058 | } | |
1059 | ||
dcaaf9f2 | 1060 | #define get_min_max(cval, def) get_min_max_with_quirks(cval, def, NULL) |
1da177e4 LT |
1061 | |
1062 | /* get a feature/mixer unit info */ | |
6bc170e4 DM |
1063 | static int mixer_ctl_feature_info(struct snd_kcontrol *kcontrol, |
1064 | struct snd_ctl_elem_info *uinfo) | |
1da177e4 | 1065 | { |
86e07d34 | 1066 | struct usb_mixer_elem_info *cval = kcontrol->private_data; |
1da177e4 LT |
1067 | |
1068 | if (cval->val_type == USB_MIXER_BOOLEAN || | |
1069 | cval->val_type == USB_MIXER_INV_BOOLEAN) | |
1070 | uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN; | |
1071 | else | |
1072 | uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER; | |
1073 | uinfo->count = cval->channels; | |
1074 | if (cval->val_type == USB_MIXER_BOOLEAN || | |
1075 | cval->val_type == USB_MIXER_INV_BOOLEAN) { | |
1076 | uinfo->value.integer.min = 0; | |
1077 | uinfo->value.integer.max = 1; | |
1078 | } else { | |
9fcd0ab1 | 1079 | if (!cval->initialized) { |
dcaaf9f2 | 1080 | get_min_max_with_quirks(cval, 0, kcontrol); |
9fcd0ab1 TI |
1081 | if (cval->initialized && cval->dBmin >= cval->dBmax) { |
1082 | kcontrol->vd[0].access &= | |
1083 | ~(SNDRV_CTL_ELEM_ACCESS_TLV_READ | | |
1084 | SNDRV_CTL_ELEM_ACCESS_TLV_CALLBACK); | |
3360b84b | 1085 | snd_ctl_notify(cval->head.mixer->chip->card, |
9fcd0ab1 TI |
1086 | SNDRV_CTL_EVENT_MASK_INFO, |
1087 | &kcontrol->id); | |
1088 | } | |
1089 | } | |
1da177e4 | 1090 | uinfo->value.integer.min = 0; |
14790f1c TI |
1091 | uinfo->value.integer.max = |
1092 | (cval->max - cval->min + cval->res - 1) / cval->res; | |
1da177e4 LT |
1093 | } |
1094 | return 0; | |
1095 | } | |
1096 | ||
1097 | /* get the current value from feature/mixer unit */ | |
6bc170e4 DM |
1098 | static int mixer_ctl_feature_get(struct snd_kcontrol *kcontrol, |
1099 | struct snd_ctl_elem_value *ucontrol) | |
1da177e4 | 1100 | { |
86e07d34 | 1101 | struct usb_mixer_elem_info *cval = kcontrol->private_data; |
1da177e4 LT |
1102 | int c, cnt, val, err; |
1103 | ||
641b4879 | 1104 | ucontrol->value.integer.value[0] = cval->min; |
1da177e4 LT |
1105 | if (cval->cmask) { |
1106 | cnt = 0; | |
1107 | for (c = 0; c < MAX_CHANNELS; c++) { | |
641b4879 TI |
1108 | if (!(cval->cmask & (1 << c))) |
1109 | continue; | |
eef90451 | 1110 | err = snd_usb_get_cur_mix_value(cval, c + 1, cnt, &val); |
641b4879 | 1111 | if (err < 0) |
5aeee342 | 1112 | return filter_error(cval, err); |
641b4879 TI |
1113 | val = get_relative_value(cval, val); |
1114 | ucontrol->value.integer.value[cnt] = val; | |
1115 | cnt++; | |
1da177e4 | 1116 | } |
641b4879 | 1117 | return 0; |
1da177e4 LT |
1118 | } else { |
1119 | /* master channel */ | |
eef90451 | 1120 | err = snd_usb_get_cur_mix_value(cval, 0, 0, &val); |
641b4879 | 1121 | if (err < 0) |
5aeee342 | 1122 | return filter_error(cval, err); |
1da177e4 LT |
1123 | val = get_relative_value(cval, val); |
1124 | ucontrol->value.integer.value[0] = val; | |
1125 | } | |
1126 | return 0; | |
1127 | } | |
1128 | ||
1129 | /* put the current value to feature/mixer unit */ | |
6bc170e4 DM |
1130 | static int mixer_ctl_feature_put(struct snd_kcontrol *kcontrol, |
1131 | struct snd_ctl_elem_value *ucontrol) | |
1da177e4 | 1132 | { |
86e07d34 | 1133 | struct usb_mixer_elem_info *cval = kcontrol->private_data; |
1da177e4 LT |
1134 | int c, cnt, val, oval, err; |
1135 | int changed = 0; | |
1136 | ||
1137 | if (cval->cmask) { | |
1138 | cnt = 0; | |
1139 | for (c = 0; c < MAX_CHANNELS; c++) { | |
641b4879 TI |
1140 | if (!(cval->cmask & (1 << c))) |
1141 | continue; | |
eef90451 | 1142 | err = snd_usb_get_cur_mix_value(cval, c + 1, cnt, &oval); |
641b4879 | 1143 | if (err < 0) |
5aeee342 | 1144 | return filter_error(cval, err); |
641b4879 TI |
1145 | val = ucontrol->value.integer.value[cnt]; |
1146 | val = get_abs_value(cval, val); | |
1147 | if (oval != val) { | |
eef90451 | 1148 | snd_usb_set_cur_mix_value(cval, c + 1, cnt, val); |
641b4879 | 1149 | changed = 1; |
1da177e4 | 1150 | } |
641b4879 | 1151 | cnt++; |
1da177e4 LT |
1152 | } |
1153 | } else { | |
1154 | /* master channel */ | |
eef90451 | 1155 | err = snd_usb_get_cur_mix_value(cval, 0, 0, &oval); |
1da177e4 | 1156 | if (err < 0) |
5aeee342 | 1157 | return filter_error(cval, err); |
1da177e4 LT |
1158 | val = ucontrol->value.integer.value[0]; |
1159 | val = get_abs_value(cval, val); | |
1160 | if (val != oval) { | |
eef90451 | 1161 | snd_usb_set_cur_mix_value(cval, 0, 0, val); |
1da177e4 LT |
1162 | changed = 1; |
1163 | } | |
1164 | } | |
1165 | return changed; | |
1166 | } | |
1167 | ||
86e07d34 | 1168 | static struct snd_kcontrol_new usb_feature_unit_ctl = { |
1da177e4 LT |
1169 | .iface = SNDRV_CTL_ELEM_IFACE_MIXER, |
1170 | .name = "", /* will be filled later manually */ | |
1171 | .info = mixer_ctl_feature_info, | |
1172 | .get = mixer_ctl_feature_get, | |
1173 | .put = mixer_ctl_feature_put, | |
1174 | }; | |
1175 | ||
23caaf19 | 1176 | /* the read-only variant */ |
8fdaebbb | 1177 | static const struct snd_kcontrol_new usb_feature_unit_ctl_ro = { |
23caaf19 DM |
1178 | .iface = SNDRV_CTL_ELEM_IFACE_MIXER, |
1179 | .name = "", /* will be filled later manually */ | |
1180 | .info = mixer_ctl_feature_info, | |
1181 | .get = mixer_ctl_feature_get, | |
1182 | .put = NULL, | |
1183 | }; | |
1184 | ||
6bc170e4 DM |
1185 | /* |
1186 | * This symbol is exported in order to allow the mixer quirks to | |
1187 | * hook up to the standard feature unit control mechanism | |
1188 | */ | |
9e38658f | 1189 | struct snd_kcontrol_new *snd_usb_feature_unit_ctl = &usb_feature_unit_ctl; |
1da177e4 LT |
1190 | |
1191 | /* | |
1192 | * build a feature control | |
1193 | */ | |
08d1e635 TI |
1194 | static size_t append_ctl_name(struct snd_kcontrol *kctl, const char *str) |
1195 | { | |
1196 | return strlcat(kctl->id.name, str, sizeof(kctl->id.name)); | |
1197 | } | |
1198 | ||
6bc170e4 DM |
1199 | /* |
1200 | * A lot of headsets/headphones have a "Speaker" mixer. Make sure we | |
1201 | * rename it to "Headphone". We determine if something is a headphone | |
1202 | * similar to how udev determines form factor. | |
1203 | */ | |
9b4ef977 DH |
1204 | static void check_no_speaker_on_headset(struct snd_kcontrol *kctl, |
1205 | struct snd_card *card) | |
1206 | { | |
1207 | const char *names_to_check[] = { | |
1208 | "Headset", "headset", "Headphone", "headphone", NULL}; | |
1209 | const char **s; | |
e0f17c75 | 1210 | bool found = false; |
9b4ef977 DH |
1211 | |
1212 | if (strcmp("Speaker", kctl->id.name)) | |
1213 | return; | |
1214 | ||
1215 | for (s = names_to_check; *s; s++) | |
1216 | if (strstr(card->shortname, *s)) { | |
e0f17c75 | 1217 | found = true; |
9b4ef977 DH |
1218 | break; |
1219 | } | |
1220 | ||
1221 | if (!found) | |
1222 | return; | |
1223 | ||
1224 | strlcpy(kctl->id.name, "Headphone", sizeof(kctl->id.name)); | |
1225 | } | |
1226 | ||
99fc8645 | 1227 | static void build_feature_ctl(struct mixer_build *state, void *raw_desc, |
1da177e4 | 1228 | unsigned int ctl_mask, int control, |
23caaf19 | 1229 | struct usb_audio_term *iterm, int unitid, |
a6a33259 | 1230 | int readonly_mask) |
1da177e4 | 1231 | { |
99fc8645 | 1232 | struct uac_feature_unit_descriptor *desc = raw_desc; |
bc18e31c | 1233 | struct usb_feature_control_info *ctl_info; |
1da177e4 LT |
1234 | unsigned int len = 0; |
1235 | int mapped_name = 0; | |
99fc8645 | 1236 | int nameid = uac_feature_unit_iFeature(desc); |
86e07d34 TI |
1237 | struct snd_kcontrol *kctl; |
1238 | struct usb_mixer_elem_info *cval; | |
c3a3e040 | 1239 | const struct usbmix_name_map *map; |
80acefff | 1240 | unsigned int range; |
1da177e4 LT |
1241 | |
1242 | control++; /* change from zero-based to 1-based value */ | |
1243 | ||
65f25da4 | 1244 | if (control == UAC_FU_GRAPHIC_EQUALIZER) { |
1da177e4 LT |
1245 | /* FIXME: not supported yet */ |
1246 | return; | |
1247 | } | |
1248 | ||
c3a3e040 JK |
1249 | map = find_map(state, unitid, control); |
1250 | if (check_ignored_ctl(map)) | |
1da177e4 LT |
1251 | return; |
1252 | ||
561b220a | 1253 | cval = kzalloc(sizeof(*cval), GFP_KERNEL); |
a860d95f | 1254 | if (!cval) |
1da177e4 | 1255 | return; |
3360b84b | 1256 | snd_usb_mixer_elem_init_std(&cval->head, state->mixer, unitid); |
1da177e4 LT |
1257 | cval->control = control; |
1258 | cval->cmask = ctl_mask; | |
bc18e31c JS |
1259 | ctl_info = &audio_feature_info[control-1]; |
1260 | if (state->mixer->protocol == UAC_VERSION_1) | |
1261 | cval->val_type = ctl_info->type; | |
1262 | else /* UAC_VERSION_2 */ | |
1263 | cval->val_type = ctl_info->type_uac2 >= 0 ? | |
1264 | ctl_info->type_uac2 : ctl_info->type; | |
1265 | ||
a6a33259 | 1266 | if (ctl_mask == 0) { |
1da177e4 | 1267 | cval->channels = 1; /* master channel */ |
a6a33259 DM |
1268 | cval->master_readonly = readonly_mask; |
1269 | } else { | |
1da177e4 LT |
1270 | int i, c = 0; |
1271 | for (i = 0; i < 16; i++) | |
1272 | if (ctl_mask & (1 << i)) | |
1273 | c++; | |
1274 | cval->channels = c; | |
a6a33259 | 1275 | cval->ch_readonly = readonly_mask; |
1da177e4 LT |
1276 | } |
1277 | ||
6bc170e4 DM |
1278 | /* |
1279 | * If all channels in the mask are marked read-only, make the control | |
eef90451 | 1280 | * read-only. snd_usb_set_cur_mix_value() will check the mask again and won't |
6bc170e4 DM |
1281 | * issue write commands to read-only channels. |
1282 | */ | |
a6a33259 | 1283 | if (cval->channels == readonly_mask) |
23caaf19 DM |
1284 | kctl = snd_ctl_new1(&usb_feature_unit_ctl_ro, cval); |
1285 | else | |
1286 | kctl = snd_ctl_new1(&usb_feature_unit_ctl, cval); | |
1287 | ||
6bc170e4 | 1288 | if (!kctl) { |
0ba41d91 | 1289 | usb_audio_err(state->chip, "cannot malloc kcontrol\n"); |
1da177e4 LT |
1290 | kfree(cval); |
1291 | return; | |
1292 | } | |
eef90451 | 1293 | kctl->private_free = snd_usb_mixer_elem_free; |
1da177e4 | 1294 | |
c3a3e040 | 1295 | len = check_mapped_name(map, kctl->id.name, sizeof(kctl->id.name)); |
1da177e4 | 1296 | mapped_name = len != 0; |
6bc170e4 | 1297 | if (!len && nameid) |
c3a3e040 JK |
1298 | len = snd_usb_copy_string_desc(state, nameid, |
1299 | kctl->id.name, sizeof(kctl->id.name)); | |
1da177e4 LT |
1300 | |
1301 | switch (control) { | |
65f25da4 DM |
1302 | case UAC_FU_MUTE: |
1303 | case UAC_FU_VOLUME: | |
6bc170e4 DM |
1304 | /* |
1305 | * determine the control name. the rule is: | |
1da177e4 LT |
1306 | * - if a name id is given in descriptor, use it. |
1307 | * - if the connected input can be determined, then use the name | |
1308 | * of terminal type. | |
1309 | * - if the connected output can be determined, use it. | |
1310 | * - otherwise, anonymous name. | |
1311 | */ | |
6bc170e4 DM |
1312 | if (!len) { |
1313 | len = get_term_name(state, iterm, kctl->id.name, | |
1314 | sizeof(kctl->id.name), 1); | |
1315 | if (!len) | |
1316 | len = get_term_name(state, &state->oterm, | |
1317 | kctl->id.name, | |
1318 | sizeof(kctl->id.name), 1); | |
1319 | if (!len) | |
49fd46d2 DM |
1320 | snprintf(kctl->id.name, sizeof(kctl->id.name), |
1321 | "Feature %d", unitid); | |
1da177e4 | 1322 | } |
9b4ef977 DH |
1323 | |
1324 | if (!mapped_name) | |
1325 | check_no_speaker_on_headset(kctl, state->mixer->chip->card); | |
1326 | ||
6bc170e4 DM |
1327 | /* |
1328 | * determine the stream direction: | |
1da177e4 LT |
1329 | * if the connected output is USB stream, then it's likely a |
1330 | * capture stream. otherwise it should be playback (hopefully :) | |
1331 | */ | |
6bc170e4 DM |
1332 | if (!mapped_name && !(state->oterm.type >> 16)) { |
1333 | if ((state->oterm.type & 0xff00) == 0x0100) | |
49fd46d2 | 1334 | append_ctl_name(kctl, " Capture"); |
6bc170e4 | 1335 | else |
49fd46d2 | 1336 | append_ctl_name(kctl, " Playback"); |
1da177e4 | 1337 | } |
65f25da4 | 1338 | append_ctl_name(kctl, control == UAC_FU_MUTE ? |
08d1e635 | 1339 | " Switch" : " Volume"); |
1da177e4 | 1340 | break; |
1da177e4 | 1341 | default: |
6bc170e4 | 1342 | if (!len) |
1da177e4 LT |
1343 | strlcpy(kctl->id.name, audio_feature_info[control-1].name, |
1344 | sizeof(kctl->id.name)); | |
1345 | break; | |
1346 | } | |
1347 | ||
e182534d TI |
1348 | /* get min/max values */ |
1349 | get_min_max_with_quirks(cval, 0, kctl); | |
1350 | ||
1351 | if (control == UAC_FU_VOLUME) { | |
1352 | check_mapped_dB(map, cval); | |
1353 | if (cval->dBmin < cval->dBmax || !cval->initialized) { | |
1354 | kctl->tlv.c = snd_usb_mixer_vol_tlv; | |
1355 | kctl->vd[0].access |= | |
1356 | SNDRV_CTL_ELEM_ACCESS_TLV_READ | | |
1357 | SNDRV_CTL_ELEM_ACCESS_TLV_CALLBACK; | |
1358 | } | |
1359 | } | |
1360 | ||
42e3121d AH |
1361 | snd_usb_mixer_fu_apply_quirk(state->mixer, cval, unitid, kctl); |
1362 | ||
80acefff | 1363 | range = (cval->max - cval->min) / cval->res; |
6bc170e4 DM |
1364 | /* |
1365 | * Are there devices with volume range more than 255? I use a bit more | |
80acefff AF |
1366 | * to be sure. 384 is a resolution magic number found on Logitech |
1367 | * devices. It will definitively catch all buggy Logitech devices. | |
1368 | */ | |
1369 | if (range > 384) { | |
6bc170e4 | 1370 | usb_audio_warn(state->chip, |
82c1cf0a | 1371 | "Warning! Unlikely big volume range (=%u), cval->res is probably wrong.", |
6bc170e4 | 1372 | range); |
82c1cf0a MM |
1373 | usb_audio_warn(state->chip, |
1374 | "[%d] FU [%s] ch = %d, val = %d/%d/%d", | |
3360b84b | 1375 | cval->head.id, kctl->id.name, cval->channels, |
6bc170e4 | 1376 | cval->min, cval->max, cval->res); |
80acefff AF |
1377 | } |
1378 | ||
0ba41d91 | 1379 | usb_audio_dbg(state->chip, "[%d] FU [%s] ch = %d, val = %d/%d/%d\n", |
3360b84b | 1380 | cval->head.id, kctl->id.name, cval->channels, |
6bc170e4 | 1381 | cval->min, cval->max, cval->res); |
3360b84b | 1382 | snd_usb_mixer_add_control(&cval->head, kctl); |
1da177e4 LT |
1383 | } |
1384 | ||
cddaafb9 DM |
1385 | static int parse_clock_source_unit(struct mixer_build *state, int unitid, |
1386 | void *_ftr) | |
1387 | { | |
1388 | struct uac_clock_source_descriptor *hdr = _ftr; | |
1389 | struct usb_mixer_elem_info *cval; | |
1390 | struct snd_kcontrol *kctl; | |
1391 | char name[SNDRV_CTL_ELEM_ID_NAME_MAXLEN]; | |
1392 | int ret; | |
1393 | ||
1394 | if (state->mixer->protocol != UAC_VERSION_2) | |
1395 | return -EINVAL; | |
1396 | ||
1397 | if (hdr->bLength != sizeof(*hdr)) { | |
1398 | usb_audio_dbg(state->chip, | |
1399 | "Bogus clock source descriptor length of %d, ignoring.\n", | |
1400 | hdr->bLength); | |
1401 | return 0; | |
1402 | } | |
1403 | ||
1404 | /* | |
1405 | * The only property of this unit we are interested in is the | |
1406 | * clock source validity. If that isn't readable, just bail out. | |
1407 | */ | |
1408 | if (!uac2_control_is_readable(hdr->bmControls, | |
1409 | ilog2(UAC2_CS_CONTROL_CLOCK_VALID))) | |
1410 | return 0; | |
1411 | ||
1412 | cval = kzalloc(sizeof(*cval), GFP_KERNEL); | |
1413 | if (!cval) | |
1414 | return -ENOMEM; | |
1415 | ||
1416 | snd_usb_mixer_elem_init_std(&cval->head, state->mixer, hdr->bClockID); | |
1417 | ||
1418 | cval->min = 0; | |
1419 | cval->max = 1; | |
1420 | cval->channels = 1; | |
1421 | cval->val_type = USB_MIXER_BOOLEAN; | |
1422 | cval->control = UAC2_CS_CONTROL_CLOCK_VALID; | |
1423 | ||
1424 | if (uac2_control_is_writeable(hdr->bmControls, | |
1425 | ilog2(UAC2_CS_CONTROL_CLOCK_VALID))) | |
1426 | kctl = snd_ctl_new1(&usb_feature_unit_ctl, cval); | |
1427 | else { | |
1428 | cval->master_readonly = 1; | |
1429 | kctl = snd_ctl_new1(&usb_feature_unit_ctl_ro, cval); | |
1430 | } | |
1431 | ||
1432 | if (!kctl) { | |
1433 | kfree(cval); | |
1434 | return -ENOMEM; | |
1435 | } | |
1436 | ||
1437 | kctl->private_free = snd_usb_mixer_elem_free; | |
1438 | ret = snd_usb_copy_string_desc(state, hdr->iClockSource, | |
1439 | name, sizeof(name)); | |
1440 | if (ret > 0) | |
1441 | snprintf(kctl->id.name, sizeof(kctl->id.name), | |
1442 | "%s Validity", name); | |
1443 | else | |
1444 | snprintf(kctl->id.name, sizeof(kctl->id.name), | |
1445 | "Clock Source %d Validity", hdr->bClockID); | |
1446 | ||
1447 | return snd_usb_mixer_add_control(&cval->head, kctl); | |
1448 | } | |
1449 | ||
1da177e4 LT |
1450 | /* |
1451 | * parse a feature unit | |
1452 | * | |
25985edc | 1453 | * most of controls are defined here. |
1da177e4 | 1454 | */ |
6bc170e4 DM |
1455 | static int parse_audio_feature_unit(struct mixer_build *state, int unitid, |
1456 | void *_ftr) | |
1da177e4 LT |
1457 | { |
1458 | int channels, i, j; | |
86e07d34 | 1459 | struct usb_audio_term iterm; |
1da177e4 LT |
1460 | unsigned int master_bits, first_ch_bits; |
1461 | int err, csize; | |
23caaf19 DM |
1462 | struct uac_feature_unit_descriptor *hdr = _ftr; |
1463 | __u8 *bmaControls; | |
1464 | ||
1465 | if (state->mixer->protocol == UAC_VERSION_1) { | |
1466 | csize = hdr->bControlSize; | |
60c961a9 | 1467 | if (!csize) { |
0ba41d91 TI |
1468 | usb_audio_dbg(state->chip, |
1469 | "unit %u: invalid bControlSize == 0\n", | |
1470 | unitid); | |
60c961a9 NK |
1471 | return -EINVAL; |
1472 | } | |
23caaf19 DM |
1473 | channels = (hdr->bLength - 7) / csize - 1; |
1474 | bmaControls = hdr->bmaControls; | |
d56268fb | 1475 | if (hdr->bLength < 7 + csize) { |
0ba41d91 TI |
1476 | usb_audio_err(state->chip, |
1477 | "unit %u: invalid UAC_FEATURE_UNIT descriptor\n", | |
1478 | unitid); | |
d56268fb CL |
1479 | return -EINVAL; |
1480 | } | |
23caaf19 DM |
1481 | } else { |
1482 | struct uac2_feature_unit_descriptor *ftr = _ftr; | |
1483 | csize = 4; | |
e8d0fee7 | 1484 | channels = (hdr->bLength - 6) / 4 - 1; |
23caaf19 | 1485 | bmaControls = ftr->bmaControls; |
d56268fb | 1486 | if (hdr->bLength < 6 + csize) { |
0ba41d91 TI |
1487 | usb_audio_err(state->chip, |
1488 | "unit %u: invalid UAC_FEATURE_UNIT descriptor\n", | |
1489 | unitid); | |
d56268fb CL |
1490 | return -EINVAL; |
1491 | } | |
1da177e4 LT |
1492 | } |
1493 | ||
1494 | /* parse the source unit */ | |
23caaf19 | 1495 | if ((err = parse_audio_unit(state, hdr->bSourceID)) < 0) |
1da177e4 LT |
1496 | return err; |
1497 | ||
1498 | /* determine the input source type and name */ | |
4d7b86c9 DM |
1499 | err = check_input_term(state, hdr->bSourceID, &iterm); |
1500 | if (err < 0) | |
1501 | return err; | |
1da177e4 | 1502 | |
23caaf19 | 1503 | master_bits = snd_usb_combine_bytes(bmaControls, csize); |
0c3cee57 JK |
1504 | /* master configuration quirks */ |
1505 | switch (state->chip->usb_id) { | |
1506 | case USB_ID(0x08bb, 0x2702): | |
0ba41d91 TI |
1507 | usb_audio_info(state->chip, |
1508 | "usbmixer: master volume quirk for PCM2702 chip\n"); | |
0c3cee57 | 1509 | /* disable non-functional volume control */ |
65f25da4 | 1510 | master_bits &= ~UAC_CONTROL_BIT(UAC_FU_VOLUME); |
0c3cee57 | 1511 | break; |
c1051439 | 1512 | case USB_ID(0x1130, 0xf211): |
0ba41d91 TI |
1513 | usb_audio_info(state->chip, |
1514 | "usbmixer: volume control quirk for Tenx TP6911 Audio Headset\n"); | |
c1051439 DH |
1515 | /* disable non-functional volume control */ |
1516 | channels = 0; | |
1517 | break; | |
1518 | ||
0c3cee57 | 1519 | } |
1da177e4 | 1520 | if (channels > 0) |
23caaf19 | 1521 | first_ch_bits = snd_usb_combine_bytes(bmaControls + csize, csize); |
1da177e4 LT |
1522 | else |
1523 | first_ch_bits = 0; | |
23caaf19 DM |
1524 | |
1525 | if (state->mixer->protocol == UAC_VERSION_1) { | |
1526 | /* check all control types */ | |
1527 | for (i = 0; i < 10; i++) { | |
1528 | unsigned int ch_bits = 0; | |
1529 | for (j = 0; j < channels; j++) { | |
6bc170e4 DM |
1530 | unsigned int mask; |
1531 | ||
1532 | mask = snd_usb_combine_bytes(bmaControls + | |
1533 | csize * (j+1), csize); | |
23caaf19 DM |
1534 | if (mask & (1 << i)) |
1535 | ch_bits |= (1 << j); | |
1536 | } | |
1537 | /* audio class v1 controls are never read-only */ | |
6bc170e4 DM |
1538 | |
1539 | /* | |
1540 | * The first channel must be set | |
1541 | * (for ease of programming). | |
1542 | */ | |
1543 | if (ch_bits & 1) | |
1544 | build_feature_ctl(state, _ftr, ch_bits, i, | |
1545 | &iterm, unitid, 0); | |
23caaf19 | 1546 | if (master_bits & (1 << i)) |
6bc170e4 DM |
1547 | build_feature_ctl(state, _ftr, 0, i, &iterm, |
1548 | unitid, 0); | |
23caaf19 DM |
1549 | } |
1550 | } else { /* UAC_VERSION_2 */ | |
d09c06c6 | 1551 | for (i = 0; i < ARRAY_SIZE(audio_feature_info); i++) { |
23caaf19 DM |
1552 | unsigned int ch_bits = 0; |
1553 | unsigned int ch_read_only = 0; | |
1554 | ||
1555 | for (j = 0; j < channels; j++) { | |
6bc170e4 DM |
1556 | unsigned int mask; |
1557 | ||
1558 | mask = snd_usb_combine_bytes(bmaControls + | |
1559 | csize * (j+1), csize); | |
dcbe7bcf | 1560 | if (uac2_control_is_readable(mask, i)) { |
23caaf19 | 1561 | ch_bits |= (1 << j); |
dcbe7bcf | 1562 | if (!uac2_control_is_writeable(mask, i)) |
23caaf19 DM |
1563 | ch_read_only |= (1 << j); |
1564 | } | |
1565 | } | |
1566 | ||
6bc170e4 DM |
1567 | /* |
1568 | * NOTE: build_feature_ctl() will mark the control | |
1569 | * read-only if all channels are marked read-only in | |
1570 | * the descriptors. Otherwise, the control will be | |
1571 | * reported as writeable, but the driver will not | |
1572 | * actually issue a write command for read-only | |
1573 | * channels. | |
1574 | */ | |
1575 | ||
1576 | /* | |
1577 | * The first channel must be set | |
1578 | * (for ease of programming). | |
1579 | */ | |
1580 | if (ch_bits & 1) | |
1581 | build_feature_ctl(state, _ftr, ch_bits, i, | |
1582 | &iterm, unitid, ch_read_only); | |
dcbe7bcf | 1583 | if (uac2_control_is_readable(master_bits, i)) |
23caaf19 | 1584 | build_feature_ctl(state, _ftr, 0, i, &iterm, unitid, |
dcbe7bcf | 1585 | !uac2_control_is_writeable(master_bits, i)); |
1da177e4 | 1586 | } |
1da177e4 LT |
1587 | } |
1588 | ||
1589 | return 0; | |
1590 | } | |
1591 | ||
1da177e4 LT |
1592 | /* |
1593 | * Mixer Unit | |
1594 | */ | |
1595 | ||
1596 | /* | |
1597 | * build a mixer unit control | |
1598 | * | |
1599 | * the callbacks are identical with feature unit. | |
1600 | * input channel number (zero based) is given in control field instead. | |
1601 | */ | |
99fc8645 DM |
1602 | static void build_mixer_unit_ctl(struct mixer_build *state, |
1603 | struct uac_mixer_unit_descriptor *desc, | |
1da177e4 | 1604 | int in_pin, int in_ch, int unitid, |
86e07d34 | 1605 | struct usb_audio_term *iterm) |
1da177e4 | 1606 | { |
86e07d34 | 1607 | struct usb_mixer_elem_info *cval; |
99fc8645 | 1608 | unsigned int num_outs = uac_mixer_unit_bNrChannels(desc); |
1da177e4 | 1609 | unsigned int i, len; |
86e07d34 | 1610 | struct snd_kcontrol *kctl; |
c3a3e040 | 1611 | const struct usbmix_name_map *map; |
1da177e4 | 1612 | |
c3a3e040 JK |
1613 | map = find_map(state, unitid, 0); |
1614 | if (check_ignored_ctl(map)) | |
1da177e4 LT |
1615 | return; |
1616 | ||
561b220a | 1617 | cval = kzalloc(sizeof(*cval), GFP_KERNEL); |
6bc170e4 | 1618 | if (!cval) |
1da177e4 LT |
1619 | return; |
1620 | ||
3360b84b | 1621 | snd_usb_mixer_elem_init_std(&cval->head, state->mixer, unitid); |
1da177e4 LT |
1622 | cval->control = in_ch + 1; /* based on 1 */ |
1623 | cval->val_type = USB_MIXER_S16; | |
1624 | for (i = 0; i < num_outs; i++) { | |
6bc170e4 DM |
1625 | __u8 *c = uac_mixer_unit_bmControls(desc, state->mixer->protocol); |
1626 | ||
1627 | if (check_matrix_bitmap(c, in_ch, i, num_outs)) { | |
1da177e4 LT |
1628 | cval->cmask |= (1 << i); |
1629 | cval->channels++; | |
1630 | } | |
1631 | } | |
1632 | ||
1633 | /* get min/max values */ | |
1634 | get_min_max(cval, 0); | |
1635 | ||
1636 | kctl = snd_ctl_new1(&usb_feature_unit_ctl, cval); | |
6bc170e4 | 1637 | if (!kctl) { |
0ba41d91 | 1638 | usb_audio_err(state->chip, "cannot malloc kcontrol\n"); |
1da177e4 LT |
1639 | kfree(cval); |
1640 | return; | |
1641 | } | |
eef90451 | 1642 | kctl->private_free = snd_usb_mixer_elem_free; |
1da177e4 | 1643 | |
c3a3e040 | 1644 | len = check_mapped_name(map, kctl->id.name, sizeof(kctl->id.name)); |
6bc170e4 DM |
1645 | if (!len) |
1646 | len = get_term_name(state, iterm, kctl->id.name, | |
1647 | sizeof(kctl->id.name), 0); | |
1648 | if (!len) | |
1da177e4 | 1649 | len = sprintf(kctl->id.name, "Mixer Source %d", in_ch + 1); |
08d1e635 | 1650 | append_ctl_name(kctl, " Volume"); |
1da177e4 | 1651 | |
0ba41d91 | 1652 | usb_audio_dbg(state->chip, "[%d] MU [%s] ch = %d, val = %d/%d\n", |
3360b84b TI |
1653 | cval->head.id, kctl->id.name, cval->channels, cval->min, cval->max); |
1654 | snd_usb_mixer_add_control(&cval->head, kctl); | |
1da177e4 LT |
1655 | } |
1656 | ||
1da177e4 LT |
1657 | /* |
1658 | * parse a mixer unit | |
1659 | */ | |
6bc170e4 DM |
1660 | static int parse_audio_mixer_unit(struct mixer_build *state, int unitid, |
1661 | void *raw_desc) | |
1da177e4 | 1662 | { |
99fc8645 | 1663 | struct uac_mixer_unit_descriptor *desc = raw_desc; |
86e07d34 | 1664 | struct usb_audio_term iterm; |
1da177e4 LT |
1665 | int input_pins, num_ins, num_outs; |
1666 | int pin, ich, err; | |
1667 | ||
6bc170e4 DM |
1668 | if (desc->bLength < 11 || !(input_pins = desc->bNrInPins) || |
1669 | !(num_outs = uac_mixer_unit_bNrChannels(desc))) { | |
1670 | usb_audio_err(state->chip, | |
1671 | "invalid MIXER UNIT descriptor %d\n", | |
1672 | unitid); | |
1da177e4 LT |
1673 | return -EINVAL; |
1674 | } | |
1da177e4 LT |
1675 | |
1676 | num_ins = 0; | |
1677 | ich = 0; | |
1678 | for (pin = 0; pin < input_pins; pin++) { | |
99fc8645 | 1679 | err = parse_audio_unit(state, desc->baSourceID[pin]); |
1da177e4 | 1680 | if (err < 0) |
284a8dd6 | 1681 | continue; |
ea114fc2 CL |
1682 | /* no bmControls field (e.g. Maya44) -> ignore */ |
1683 | if (desc->bLength <= 10 + input_pins) | |
1684 | continue; | |
99fc8645 | 1685 | err = check_input_term(state, desc->baSourceID[pin], &iterm); |
1da177e4 LT |
1686 | if (err < 0) |
1687 | return err; | |
1688 | num_ins += iterm.channels; | |
6bc170e4 | 1689 | for (; ich < num_ins; ich++) { |
1da177e4 LT |
1690 | int och, ich_has_controls = 0; |
1691 | ||
6bc170e4 DM |
1692 | for (och = 0; och < num_outs; och++) { |
1693 | __u8 *c = uac_mixer_unit_bmControls(desc, | |
1694 | state->mixer->protocol); | |
1695 | ||
1696 | if (check_matrix_bitmap(c, ich, och, num_outs)) { | |
1da177e4 LT |
1697 | ich_has_controls = 1; |
1698 | break; | |
1699 | } | |
1700 | } | |
1701 | if (ich_has_controls) | |
1702 | build_mixer_unit_ctl(state, desc, pin, ich, | |
1703 | unitid, &iterm); | |
1704 | } | |
1705 | } | |
1706 | return 0; | |
1707 | } | |
1708 | ||
1da177e4 LT |
1709 | /* |
1710 | * Processing Unit / Extension Unit | |
1711 | */ | |
1712 | ||
1713 | /* get callback for processing/extension unit */ | |
6bc170e4 DM |
1714 | static int mixer_ctl_procunit_get(struct snd_kcontrol *kcontrol, |
1715 | struct snd_ctl_elem_value *ucontrol) | |
1da177e4 | 1716 | { |
86e07d34 | 1717 | struct usb_mixer_elem_info *cval = kcontrol->private_data; |
1da177e4 LT |
1718 | int err, val; |
1719 | ||
1720 | err = get_cur_ctl_value(cval, cval->control << 8, &val); | |
5aeee342 | 1721 | if (err < 0) { |
1da177e4 | 1722 | ucontrol->value.integer.value[0] = cval->min; |
5aeee342 | 1723 | return filter_error(cval, err); |
1da177e4 | 1724 | } |
1da177e4 LT |
1725 | val = get_relative_value(cval, val); |
1726 | ucontrol->value.integer.value[0] = val; | |
1727 | return 0; | |
1728 | } | |
1729 | ||
1730 | /* put callback for processing/extension unit */ | |
6bc170e4 DM |
1731 | static int mixer_ctl_procunit_put(struct snd_kcontrol *kcontrol, |
1732 | struct snd_ctl_elem_value *ucontrol) | |
1da177e4 | 1733 | { |
86e07d34 | 1734 | struct usb_mixer_elem_info *cval = kcontrol->private_data; |
1da177e4 LT |
1735 | int val, oval, err; |
1736 | ||
1737 | err = get_cur_ctl_value(cval, cval->control << 8, &oval); | |
5aeee342 TI |
1738 | if (err < 0) |
1739 | return filter_error(cval, err); | |
1da177e4 LT |
1740 | val = ucontrol->value.integer.value[0]; |
1741 | val = get_abs_value(cval, val); | |
1742 | if (val != oval) { | |
1743 | set_cur_ctl_value(cval, cval->control << 8, val); | |
1744 | return 1; | |
1745 | } | |
1746 | return 0; | |
1747 | } | |
1748 | ||
1749 | /* alsa control interface for processing/extension unit */ | |
8fdaebbb | 1750 | static const struct snd_kcontrol_new mixer_procunit_ctl = { |
1da177e4 LT |
1751 | .iface = SNDRV_CTL_ELEM_IFACE_MIXER, |
1752 | .name = "", /* will be filled later */ | |
1753 | .info = mixer_ctl_feature_info, | |
1754 | .get = mixer_ctl_procunit_get, | |
1755 | .put = mixer_ctl_procunit_put, | |
1756 | }; | |
1757 | ||
1da177e4 LT |
1758 | /* |
1759 | * predefined data for processing units | |
1760 | */ | |
1761 | struct procunit_value_info { | |
1762 | int control; | |
1763 | char *suffix; | |
1764 | int val_type; | |
1765 | int min_value; | |
1766 | }; | |
1767 | ||
1768 | struct procunit_info { | |
1769 | int type; | |
1770 | char *name; | |
1771 | struct procunit_value_info *values; | |
1772 | }; | |
1773 | ||
1774 | static struct procunit_value_info updown_proc_info[] = { | |
65f25da4 DM |
1775 | { UAC_UD_ENABLE, "Switch", USB_MIXER_BOOLEAN }, |
1776 | { UAC_UD_MODE_SELECT, "Mode Select", USB_MIXER_U8, 1 }, | |
1da177e4 LT |
1777 | { 0 } |
1778 | }; | |
1779 | static struct procunit_value_info prologic_proc_info[] = { | |
65f25da4 DM |
1780 | { UAC_DP_ENABLE, "Switch", USB_MIXER_BOOLEAN }, |
1781 | { UAC_DP_MODE_SELECT, "Mode Select", USB_MIXER_U8, 1 }, | |
1da177e4 LT |
1782 | { 0 } |
1783 | }; | |
1784 | static struct procunit_value_info threed_enh_proc_info[] = { | |
65f25da4 DM |
1785 | { UAC_3D_ENABLE, "Switch", USB_MIXER_BOOLEAN }, |
1786 | { UAC_3D_SPACE, "Spaciousness", USB_MIXER_U8 }, | |
1da177e4 LT |
1787 | { 0 } |
1788 | }; | |
1789 | static struct procunit_value_info reverb_proc_info[] = { | |
65f25da4 DM |
1790 | { UAC_REVERB_ENABLE, "Switch", USB_MIXER_BOOLEAN }, |
1791 | { UAC_REVERB_LEVEL, "Level", USB_MIXER_U8 }, | |
1792 | { UAC_REVERB_TIME, "Time", USB_MIXER_U16 }, | |
1793 | { UAC_REVERB_FEEDBACK, "Feedback", USB_MIXER_U8 }, | |
1da177e4 LT |
1794 | { 0 } |
1795 | }; | |
1796 | static struct procunit_value_info chorus_proc_info[] = { | |
65f25da4 DM |
1797 | { UAC_CHORUS_ENABLE, "Switch", USB_MIXER_BOOLEAN }, |
1798 | { UAC_CHORUS_LEVEL, "Level", USB_MIXER_U8 }, | |
1799 | { UAC_CHORUS_RATE, "Rate", USB_MIXER_U16 }, | |
1800 | { UAC_CHORUS_DEPTH, "Depth", USB_MIXER_U16 }, | |
1da177e4 LT |
1801 | { 0 } |
1802 | }; | |
1803 | static struct procunit_value_info dcr_proc_info[] = { | |
65f25da4 DM |
1804 | { UAC_DCR_ENABLE, "Switch", USB_MIXER_BOOLEAN }, |
1805 | { UAC_DCR_RATE, "Ratio", USB_MIXER_U16 }, | |
1806 | { UAC_DCR_MAXAMPL, "Max Amp", USB_MIXER_S16 }, | |
1807 | { UAC_DCR_THRESHOLD, "Threshold", USB_MIXER_S16 }, | |
1808 | { UAC_DCR_ATTACK_TIME, "Attack Time", USB_MIXER_U16 }, | |
1809 | { UAC_DCR_RELEASE_TIME, "Release Time", USB_MIXER_U16 }, | |
1da177e4 LT |
1810 | { 0 } |
1811 | }; | |
1812 | ||
1813 | static struct procunit_info procunits[] = { | |
65f25da4 DM |
1814 | { UAC_PROCESS_UP_DOWNMIX, "Up Down", updown_proc_info }, |
1815 | { UAC_PROCESS_DOLBY_PROLOGIC, "Dolby Prologic", prologic_proc_info }, | |
1816 | { UAC_PROCESS_STEREO_EXTENDER, "3D Stereo Extender", threed_enh_proc_info }, | |
1817 | { UAC_PROCESS_REVERB, "Reverb", reverb_proc_info }, | |
1818 | { UAC_PROCESS_CHORUS, "Chorus", chorus_proc_info }, | |
1819 | { UAC_PROCESS_DYN_RANGE_COMP, "DCR", dcr_proc_info }, | |
1da177e4 LT |
1820 | { 0 }, |
1821 | }; | |
7d2b451e SK |
1822 | /* |
1823 | * predefined data for extension units | |
1824 | */ | |
1825 | static struct procunit_value_info clock_rate_xu_info[] = { | |
e213e9cf DM |
1826 | { USB_XU_CLOCK_RATE_SELECTOR, "Selector", USB_MIXER_U8, 0 }, |
1827 | { 0 } | |
7d2b451e SK |
1828 | }; |
1829 | static struct procunit_value_info clock_source_xu_info[] = { | |
1830 | { USB_XU_CLOCK_SOURCE_SELECTOR, "External", USB_MIXER_BOOLEAN }, | |
1831 | { 0 } | |
1832 | }; | |
1833 | static struct procunit_value_info spdif_format_xu_info[] = { | |
1834 | { USB_XU_DIGITAL_FORMAT_SELECTOR, "SPDIF/AC3", USB_MIXER_BOOLEAN }, | |
1835 | { 0 } | |
1836 | }; | |
1837 | static struct procunit_value_info soft_limit_xu_info[] = { | |
1838 | { USB_XU_SOFT_LIMIT_SELECTOR, " ", USB_MIXER_BOOLEAN }, | |
1839 | { 0 } | |
1840 | }; | |
1841 | static struct procunit_info extunits[] = { | |
1842 | { USB_XU_CLOCK_RATE, "Clock rate", clock_rate_xu_info }, | |
1843 | { USB_XU_CLOCK_SOURCE, "DigitalIn CLK source", clock_source_xu_info }, | |
1844 | { USB_XU_DIGITAL_IO_STATUS, "DigitalOut format:", spdif_format_xu_info }, | |
1845 | { USB_XU_DEVICE_OPTIONS, "AnalogueIn Soft Limit", soft_limit_xu_info }, | |
1846 | { 0 } | |
1847 | }; | |
6bc170e4 | 1848 | |
1da177e4 LT |
1849 | /* |
1850 | * build a processing/extension unit | |
1851 | */ | |
6bc170e4 DM |
1852 | static int build_audio_procunit(struct mixer_build *state, int unitid, |
1853 | void *raw_desc, struct procunit_info *list, | |
1854 | char *name) | |
1da177e4 | 1855 | { |
99fc8645 DM |
1856 | struct uac_processing_unit_descriptor *desc = raw_desc; |
1857 | int num_ins = desc->bNrInPins; | |
86e07d34 TI |
1858 | struct usb_mixer_elem_info *cval; |
1859 | struct snd_kcontrol *kctl; | |
1da177e4 LT |
1860 | int i, err, nameid, type, len; |
1861 | struct procunit_info *info; | |
1862 | struct procunit_value_info *valinfo; | |
c3a3e040 | 1863 | const struct usbmix_name_map *map; |
1da177e4 LT |
1864 | static struct procunit_value_info default_value_info[] = { |
1865 | { 0x01, "Switch", USB_MIXER_BOOLEAN }, | |
1866 | { 0 } | |
1867 | }; | |
1868 | static struct procunit_info default_info = { | |
1869 | 0, NULL, default_value_info | |
1870 | }; | |
1871 | ||
23caaf19 DM |
1872 | if (desc->bLength < 13 || desc->bLength < 13 + num_ins || |
1873 | desc->bLength < num_ins + uac_processing_unit_bControlSize(desc, state->mixer->protocol)) { | |
0ba41d91 | 1874 | usb_audio_err(state->chip, "invalid %s descriptor (id %d)\n", name, unitid); |
1da177e4 LT |
1875 | return -EINVAL; |
1876 | } | |
1877 | ||
1878 | for (i = 0; i < num_ins; i++) { | |
99fc8645 | 1879 | if ((err = parse_audio_unit(state, desc->baSourceID[i])) < 0) |
1da177e4 LT |
1880 | return err; |
1881 | } | |
1882 | ||
99fc8645 | 1883 | type = le16_to_cpu(desc->wProcessType); |
1da177e4 LT |
1884 | for (info = list; info && info->type; info++) |
1885 | if (info->type == type) | |
1886 | break; | |
6bc170e4 | 1887 | if (!info || !info->type) |
1da177e4 LT |
1888 | info = &default_info; |
1889 | ||
1890 | for (valinfo = info->values; valinfo->control; valinfo++) { | |
23caaf19 | 1891 | __u8 *controls = uac_processing_unit_bmControls(desc, state->mixer->protocol); |
99fc8645 | 1892 | |
6bc170e4 | 1893 | if (!(controls[valinfo->control / 8] & (1 << ((valinfo->control % 8) - 1)))) |
1da177e4 | 1894 | continue; |
c3a3e040 JK |
1895 | map = find_map(state, unitid, valinfo->control); |
1896 | if (check_ignored_ctl(map)) | |
1da177e4 | 1897 | continue; |
561b220a | 1898 | cval = kzalloc(sizeof(*cval), GFP_KERNEL); |
a860d95f | 1899 | if (!cval) |
1da177e4 | 1900 | return -ENOMEM; |
3360b84b | 1901 | snd_usb_mixer_elem_init_std(&cval->head, state->mixer, unitid); |
1da177e4 LT |
1902 | cval->control = valinfo->control; |
1903 | cval->val_type = valinfo->val_type; | |
1904 | cval->channels = 1; | |
1905 | ||
1906 | /* get min/max values */ | |
65f25da4 | 1907 | if (type == UAC_PROCESS_UP_DOWNMIX && cval->control == UAC_UD_MODE_SELECT) { |
23caaf19 | 1908 | __u8 *control_spec = uac_processing_unit_specific(desc, state->mixer->protocol); |
1da177e4 LT |
1909 | /* FIXME: hard-coded */ |
1910 | cval->min = 1; | |
99fc8645 | 1911 | cval->max = control_spec[0]; |
1da177e4 LT |
1912 | cval->res = 1; |
1913 | cval->initialized = 1; | |
7d2b451e SK |
1914 | } else { |
1915 | if (type == USB_XU_CLOCK_RATE) { | |
6bc170e4 DM |
1916 | /* |
1917 | * E-Mu USB 0404/0202/TrackerPre/0204 | |
7d2b451e SK |
1918 | * samplerate control quirk |
1919 | */ | |
1920 | cval->min = 0; | |
1921 | cval->max = 5; | |
1922 | cval->res = 1; | |
1923 | cval->initialized = 1; | |
1924 | } else | |
1925 | get_min_max(cval, valinfo->min_value); | |
1926 | } | |
1da177e4 LT |
1927 | |
1928 | kctl = snd_ctl_new1(&mixer_procunit_ctl, cval); | |
6bc170e4 | 1929 | if (!kctl) { |
1da177e4 LT |
1930 | kfree(cval); |
1931 | return -ENOMEM; | |
1932 | } | |
eef90451 | 1933 | kctl->private_free = snd_usb_mixer_elem_free; |
1da177e4 | 1934 | |
6bc170e4 | 1935 | if (check_mapped_name(map, kctl->id.name, sizeof(kctl->id.name))) { |
c3a3e040 | 1936 | /* nothing */ ; |
6bc170e4 | 1937 | } else if (info->name) { |
1da177e4 | 1938 | strlcpy(kctl->id.name, info->name, sizeof(kctl->id.name)); |
6bc170e4 | 1939 | } else { |
23caaf19 | 1940 | nameid = uac_processing_unit_iProcessing(desc, state->mixer->protocol); |
1da177e4 LT |
1941 | len = 0; |
1942 | if (nameid) | |
6bc170e4 DM |
1943 | len = snd_usb_copy_string_desc(state, nameid, |
1944 | kctl->id.name, | |
1945 | sizeof(kctl->id.name)); | |
1946 | if (!len) | |
1da177e4 LT |
1947 | strlcpy(kctl->id.name, name, sizeof(kctl->id.name)); |
1948 | } | |
08d1e635 TI |
1949 | append_ctl_name(kctl, " "); |
1950 | append_ctl_name(kctl, valinfo->suffix); | |
1da177e4 | 1951 | |
0ba41d91 | 1952 | usb_audio_dbg(state->chip, |
6bc170e4 | 1953 | "[%d] PU [%s] ch = %d, val = %d/%d\n", |
3360b84b | 1954 | cval->head.id, kctl->id.name, cval->channels, |
6bc170e4 DM |
1955 | cval->min, cval->max); |
1956 | ||
3360b84b | 1957 | err = snd_usb_mixer_add_control(&cval->head, kctl); |
6bc170e4 | 1958 | if (err < 0) |
1da177e4 LT |
1959 | return err; |
1960 | } | |
1961 | return 0; | |
1962 | } | |
1963 | ||
6bc170e4 DM |
1964 | static int parse_audio_processing_unit(struct mixer_build *state, int unitid, |
1965 | void *raw_desc) | |
1da177e4 | 1966 | { |
6bc170e4 DM |
1967 | return build_audio_procunit(state, unitid, raw_desc, |
1968 | procunits, "Processing Unit"); | |
1da177e4 LT |
1969 | } |
1970 | ||
6bc170e4 DM |
1971 | static int parse_audio_extension_unit(struct mixer_build *state, int unitid, |
1972 | void *raw_desc) | |
1da177e4 | 1973 | { |
6bc170e4 DM |
1974 | /* |
1975 | * Note that we parse extension units with processing unit descriptors. | |
1976 | * That's ok as the layout is the same. | |
1977 | */ | |
1978 | return build_audio_procunit(state, unitid, raw_desc, | |
1979 | extunits, "Extension Unit"); | |
1da177e4 LT |
1980 | } |
1981 | ||
1da177e4 LT |
1982 | /* |
1983 | * Selector Unit | |
1984 | */ | |
1985 | ||
6bc170e4 DM |
1986 | /* |
1987 | * info callback for selector unit | |
1da177e4 LT |
1988 | * use an enumerator type for routing |
1989 | */ | |
6bc170e4 DM |
1990 | static int mixer_ctl_selector_info(struct snd_kcontrol *kcontrol, |
1991 | struct snd_ctl_elem_info *uinfo) | |
1da177e4 | 1992 | { |
86e07d34 | 1993 | struct usb_mixer_elem_info *cval = kcontrol->private_data; |
2a1803a7 | 1994 | const char **itemlist = (const char **)kcontrol->private_value; |
1da177e4 | 1995 | |
5e246b85 TI |
1996 | if (snd_BUG_ON(!itemlist)) |
1997 | return -EINVAL; | |
2a1803a7 | 1998 | return snd_ctl_enum_info(uinfo, 1, cval->max, itemlist); |
1da177e4 LT |
1999 | } |
2000 | ||
2001 | /* get callback for selector unit */ | |
6bc170e4 DM |
2002 | static int mixer_ctl_selector_get(struct snd_kcontrol *kcontrol, |
2003 | struct snd_ctl_elem_value *ucontrol) | |
1da177e4 | 2004 | { |
86e07d34 | 2005 | struct usb_mixer_elem_info *cval = kcontrol->private_data; |
1da177e4 LT |
2006 | int val, err; |
2007 | ||
09414207 | 2008 | err = get_cur_ctl_value(cval, cval->control << 8, &val); |
1da177e4 | 2009 | if (err < 0) { |
5aeee342 TI |
2010 | ucontrol->value.enumerated.item[0] = 0; |
2011 | return filter_error(cval, err); | |
1da177e4 LT |
2012 | } |
2013 | val = get_relative_value(cval, val); | |
2014 | ucontrol->value.enumerated.item[0] = val; | |
2015 | return 0; | |
2016 | } | |
2017 | ||
2018 | /* put callback for selector unit */ | |
6bc170e4 DM |
2019 | static int mixer_ctl_selector_put(struct snd_kcontrol *kcontrol, |
2020 | struct snd_ctl_elem_value *ucontrol) | |
1da177e4 | 2021 | { |
86e07d34 | 2022 | struct usb_mixer_elem_info *cval = kcontrol->private_data; |
1da177e4 LT |
2023 | int val, oval, err; |
2024 | ||
09414207 | 2025 | err = get_cur_ctl_value(cval, cval->control << 8, &oval); |
5aeee342 TI |
2026 | if (err < 0) |
2027 | return filter_error(cval, err); | |
1da177e4 LT |
2028 | val = ucontrol->value.enumerated.item[0]; |
2029 | val = get_abs_value(cval, val); | |
2030 | if (val != oval) { | |
09414207 | 2031 | set_cur_ctl_value(cval, cval->control << 8, val); |
1da177e4 LT |
2032 | return 1; |
2033 | } | |
2034 | return 0; | |
2035 | } | |
2036 | ||
2037 | /* alsa control interface for selector unit */ | |
8fdaebbb | 2038 | static const struct snd_kcontrol_new mixer_selectunit_ctl = { |
1da177e4 LT |
2039 | .iface = SNDRV_CTL_ELEM_IFACE_MIXER, |
2040 | .name = "", /* will be filled later */ | |
2041 | .info = mixer_ctl_selector_info, | |
2042 | .get = mixer_ctl_selector_get, | |
2043 | .put = mixer_ctl_selector_put, | |
2044 | }; | |
2045 | ||
6bc170e4 DM |
2046 | /* |
2047 | * private free callback. | |
1da177e4 LT |
2048 | * free both private_data and private_value |
2049 | */ | |
86e07d34 | 2050 | static void usb_mixer_selector_elem_free(struct snd_kcontrol *kctl) |
1da177e4 LT |
2051 | { |
2052 | int i, num_ins = 0; | |
2053 | ||
2054 | if (kctl->private_data) { | |
86e07d34 | 2055 | struct usb_mixer_elem_info *cval = kctl->private_data; |
1da177e4 LT |
2056 | num_ins = cval->max; |
2057 | kfree(cval); | |
2058 | kctl->private_data = NULL; | |
2059 | } | |
2060 | if (kctl->private_value) { | |
2061 | char **itemlist = (char **)kctl->private_value; | |
2062 | for (i = 0; i < num_ins; i++) | |
2063 | kfree(itemlist[i]); | |
2064 | kfree(itemlist); | |
2065 | kctl->private_value = 0; | |
2066 | } | |
2067 | } | |
2068 | ||
2069 | /* | |
2070 | * parse a selector unit | |
2071 | */ | |
6bc170e4 DM |
2072 | static int parse_audio_selector_unit(struct mixer_build *state, int unitid, |
2073 | void *raw_desc) | |
1da177e4 | 2074 | { |
99fc8645 | 2075 | struct uac_selector_unit_descriptor *desc = raw_desc; |
1da177e4 LT |
2076 | unsigned int i, nameid, len; |
2077 | int err; | |
86e07d34 TI |
2078 | struct usb_mixer_elem_info *cval; |
2079 | struct snd_kcontrol *kctl; | |
c3a3e040 | 2080 | const struct usbmix_name_map *map; |
1da177e4 LT |
2081 | char **namelist; |
2082 | ||
99fc8645 | 2083 | if (!desc->bNrInPins || desc->bLength < 5 + desc->bNrInPins) { |
0ba41d91 TI |
2084 | usb_audio_err(state->chip, |
2085 | "invalid SELECTOR UNIT descriptor %d\n", unitid); | |
1da177e4 LT |
2086 | return -EINVAL; |
2087 | } | |
2088 | ||
99fc8645 DM |
2089 | for (i = 0; i < desc->bNrInPins; i++) { |
2090 | if ((err = parse_audio_unit(state, desc->baSourceID[i])) < 0) | |
1da177e4 LT |
2091 | return err; |
2092 | } | |
2093 | ||
99fc8645 | 2094 | if (desc->bNrInPins == 1) /* only one ? nonsense! */ |
1da177e4 LT |
2095 | return 0; |
2096 | ||
c3a3e040 JK |
2097 | map = find_map(state, unitid, 0); |
2098 | if (check_ignored_ctl(map)) | |
1da177e4 LT |
2099 | return 0; |
2100 | ||
561b220a | 2101 | cval = kzalloc(sizeof(*cval), GFP_KERNEL); |
a860d95f | 2102 | if (!cval) |
1da177e4 | 2103 | return -ENOMEM; |
3360b84b | 2104 | snd_usb_mixer_elem_init_std(&cval->head, state->mixer, unitid); |
1da177e4 LT |
2105 | cval->val_type = USB_MIXER_U8; |
2106 | cval->channels = 1; | |
2107 | cval->min = 1; | |
99fc8645 | 2108 | cval->max = desc->bNrInPins; |
1da177e4 LT |
2109 | cval->res = 1; |
2110 | cval->initialized = 1; | |
2111 | ||
a358a0ef | 2112 | if (state->mixer->protocol == UAC_VERSION_1) |
09414207 | 2113 | cval->control = 0; |
a358a0ef JR |
2114 | else /* UAC_VERSION_2 */ |
2115 | cval->control = (desc->bDescriptorSubtype == UAC2_CLOCK_SELECTOR) ? | |
2116 | UAC2_CX_CLOCK_SELECTOR : UAC2_SU_SELECTOR; | |
09414207 | 2117 | |
99fc8645 | 2118 | namelist = kmalloc(sizeof(char *) * desc->bNrInPins, GFP_KERNEL); |
6bc170e4 | 2119 | if (!namelist) { |
1da177e4 LT |
2120 | kfree(cval); |
2121 | return -ENOMEM; | |
2122 | } | |
2123 | #define MAX_ITEM_NAME_LEN 64 | |
99fc8645 | 2124 | for (i = 0; i < desc->bNrInPins; i++) { |
86e07d34 | 2125 | struct usb_audio_term iterm; |
1da177e4 LT |
2126 | len = 0; |
2127 | namelist[i] = kmalloc(MAX_ITEM_NAME_LEN, GFP_KERNEL); | |
6bc170e4 | 2128 | if (!namelist[i]) { |
7fbe3ca5 | 2129 | while (i--) |
1da177e4 LT |
2130 | kfree(namelist[i]); |
2131 | kfree(namelist); | |
2132 | kfree(cval); | |
2133 | return -ENOMEM; | |
2134 | } | |
8e062ec7 CL |
2135 | len = check_mapped_selector_name(state, unitid, i, namelist[i], |
2136 | MAX_ITEM_NAME_LEN); | |
99fc8645 | 2137 | if (! len && check_input_term(state, desc->baSourceID[i], &iterm) >= 0) |
1da177e4 LT |
2138 | len = get_term_name(state, &iterm, namelist[i], MAX_ITEM_NAME_LEN, 0); |
2139 | if (! len) | |
af831eef | 2140 | sprintf(namelist[i], "Input %u", i); |
1da177e4 LT |
2141 | } |
2142 | ||
2143 | kctl = snd_ctl_new1(&mixer_selectunit_ctl, cval); | |
2144 | if (! kctl) { | |
0ba41d91 | 2145 | usb_audio_err(state->chip, "cannot malloc kcontrol\n"); |
878b4789 | 2146 | kfree(namelist); |
1da177e4 LT |
2147 | kfree(cval); |
2148 | return -ENOMEM; | |
2149 | } | |
2150 | kctl->private_value = (unsigned long)namelist; | |
2151 | kctl->private_free = usb_mixer_selector_elem_free; | |
2152 | ||
99fc8645 | 2153 | nameid = uac_selector_unit_iSelector(desc); |
c3a3e040 | 2154 | len = check_mapped_name(map, kctl->id.name, sizeof(kctl->id.name)); |
1da177e4 LT |
2155 | if (len) |
2156 | ; | |
2157 | else if (nameid) | |
6bc170e4 DM |
2158 | snd_usb_copy_string_desc(state, nameid, kctl->id.name, |
2159 | sizeof(kctl->id.name)); | |
1da177e4 LT |
2160 | else { |
2161 | len = get_term_name(state, &state->oterm, | |
2162 | kctl->id.name, sizeof(kctl->id.name), 0); | |
6bc170e4 | 2163 | if (!len) |
1da177e4 LT |
2164 | strlcpy(kctl->id.name, "USB", sizeof(kctl->id.name)); |
2165 | ||
09414207 DM |
2166 | if (desc->bDescriptorSubtype == UAC2_CLOCK_SELECTOR) |
2167 | append_ctl_name(kctl, " Clock Source"); | |
2168 | else if ((state->oterm.type & 0xff00) == 0x0100) | |
08d1e635 | 2169 | append_ctl_name(kctl, " Capture Source"); |
1da177e4 | 2170 | else |
08d1e635 | 2171 | append_ctl_name(kctl, " Playback Source"); |
1da177e4 LT |
2172 | } |
2173 | ||
0ba41d91 | 2174 | usb_audio_dbg(state->chip, "[%d] SU [%s] items = %d\n", |
3360b84b TI |
2175 | cval->head.id, kctl->id.name, desc->bNrInPins); |
2176 | return snd_usb_mixer_add_control(&cval->head, kctl); | |
1da177e4 LT |
2177 | } |
2178 | ||
1da177e4 LT |
2179 | /* |
2180 | * parse an audio unit recursively | |
2181 | */ | |
2182 | ||
86e07d34 | 2183 | static int parse_audio_unit(struct mixer_build *state, int unitid) |
1da177e4 LT |
2184 | { |
2185 | unsigned char *p1; | |
2186 | ||
2187 | if (test_and_set_bit(unitid, state->unitbitmap)) | |
2188 | return 0; /* the unit already visited */ | |
2189 | ||
2190 | p1 = find_audio_control_unit(state, unitid); | |
2191 | if (!p1) { | |
0ba41d91 | 2192 | usb_audio_err(state->chip, "unit %d not found!\n", unitid); |
1da177e4 LT |
2193 | return -EINVAL; |
2194 | } | |
2195 | ||
2196 | switch (p1[2]) { | |
de48c7bc | 2197 | case UAC_INPUT_TERMINAL: |
1da177e4 | 2198 | return 0; /* NOP */ |
de48c7bc | 2199 | case UAC_MIXER_UNIT: |
1da177e4 | 2200 | return parse_audio_mixer_unit(state, unitid, p1); |
cddaafb9 DM |
2201 | case UAC2_CLOCK_SOURCE: |
2202 | return parse_clock_source_unit(state, unitid, p1); | |
de48c7bc | 2203 | case UAC_SELECTOR_UNIT: |
09414207 | 2204 | case UAC2_CLOCK_SELECTOR: |
1da177e4 | 2205 | return parse_audio_selector_unit(state, unitid, p1); |
de48c7bc | 2206 | case UAC_FEATURE_UNIT: |
1da177e4 | 2207 | return parse_audio_feature_unit(state, unitid, p1); |
69da9bcb | 2208 | case UAC1_PROCESSING_UNIT: |
23caaf19 DM |
2209 | /* UAC2_EFFECT_UNIT has the same value */ |
2210 | if (state->mixer->protocol == UAC_VERSION_1) | |
2211 | return parse_audio_processing_unit(state, unitid, p1); | |
2212 | else | |
2213 | return 0; /* FIXME - effect units not implemented yet */ | |
69da9bcb | 2214 | case UAC1_EXTENSION_UNIT: |
23caaf19 DM |
2215 | /* UAC2_PROCESSING_UNIT_V2 has the same value */ |
2216 | if (state->mixer->protocol == UAC_VERSION_1) | |
2217 | return parse_audio_extension_unit(state, unitid, p1); | |
2218 | else /* UAC_VERSION_2 */ | |
2219 | return parse_audio_processing_unit(state, unitid, p1); | |
61ac5130 TH |
2220 | case UAC2_EXTENSION_UNIT_V2: |
2221 | return parse_audio_extension_unit(state, unitid, p1); | |
1da177e4 | 2222 | default: |
0ba41d91 TI |
2223 | usb_audio_err(state->chip, |
2224 | "unit %u: unexpected type 0x%02x\n", unitid, p1[2]); | |
1da177e4 LT |
2225 | return -EINVAL; |
2226 | } | |
2227 | } | |
2228 | ||
84957a8a CL |
2229 | static void snd_usb_mixer_free(struct usb_mixer_interface *mixer) |
2230 | { | |
440be1bb TI |
2231 | /* kill pending URBs */ |
2232 | snd_usb_mixer_disconnect(mixer); | |
2233 | ||
6639b6c2 CL |
2234 | kfree(mixer->id_elems); |
2235 | if (mixer->urb) { | |
2236 | kfree(mixer->urb->transfer_buffer); | |
2237 | usb_free_urb(mixer->urb); | |
2238 | } | |
68df9de1 | 2239 | usb_free_urb(mixer->rc_urb); |
b259b10c | 2240 | kfree(mixer->rc_setup_packet); |
84957a8a CL |
2241 | kfree(mixer); |
2242 | } | |
2243 | ||
86e07d34 | 2244 | static int snd_usb_mixer_dev_free(struct snd_device *device) |
84957a8a CL |
2245 | { |
2246 | struct usb_mixer_interface *mixer = device->device_data; | |
2247 | snd_usb_mixer_free(mixer); | |
2248 | return 0; | |
2249 | } | |
2250 | ||
1da177e4 LT |
2251 | /* |
2252 | * create mixer controls | |
2253 | * | |
de48c7bc | 2254 | * walk through all UAC_OUTPUT_TERMINAL descriptors to search for mixers |
1da177e4 | 2255 | */ |
84957a8a | 2256 | static int snd_usb_mixer_controls(struct usb_mixer_interface *mixer) |
1da177e4 | 2257 | { |
86e07d34 | 2258 | struct mixer_build state; |
1da177e4 LT |
2259 | int err; |
2260 | const struct usbmix_ctl_map *map; | |
23caaf19 | 2261 | void *p; |
1da177e4 LT |
2262 | |
2263 | memset(&state, 0, sizeof(state)); | |
84957a8a CL |
2264 | state.chip = mixer->chip; |
2265 | state.mixer = mixer; | |
1faa5d07 DM |
2266 | state.buffer = mixer->hostif->extra; |
2267 | state.buflen = mixer->hostif->extralen; | |
1da177e4 LT |
2268 | |
2269 | /* check the mapping table */ | |
27d10f56 CL |
2270 | for (map = usbmix_ctl_maps; map->id; map++) { |
2271 | if (map->id == state.chip->usb_id) { | |
1da177e4 | 2272 | state.map = map->map; |
8e062ec7 | 2273 | state.selector_map = map->selector_map; |
84957a8a | 2274 | mixer->ignore_ctl_error = map->ignore_ctl_error; |
1da177e4 LT |
2275 | break; |
2276 | } | |
2277 | } | |
1da177e4 | 2278 | |
23caaf19 | 2279 | p = NULL; |
6bc170e4 DM |
2280 | while ((p = snd_usb_find_csint_desc(mixer->hostif->extra, |
2281 | mixer->hostif->extralen, | |
1faa5d07 | 2282 | p, UAC_OUTPUT_TERMINAL)) != NULL) { |
23caaf19 | 2283 | if (mixer->protocol == UAC_VERSION_1) { |
69da9bcb | 2284 | struct uac1_output_terminal_descriptor *desc = p; |
23caaf19 DM |
2285 | |
2286 | if (desc->bLength < sizeof(*desc)) | |
2287 | continue; /* invalid descriptor? */ | |
6bc170e4 DM |
2288 | /* mark terminal ID as visited */ |
2289 | set_bit(desc->bTerminalID, state.unitbitmap); | |
23caaf19 DM |
2290 | state.oterm.id = desc->bTerminalID; |
2291 | state.oterm.type = le16_to_cpu(desc->wTerminalType); | |
2292 | state.oterm.name = desc->iTerminal; | |
2293 | err = parse_audio_unit(&state, desc->bSourceID); | |
83ea5d18 | 2294 | if (err < 0 && err != -EINVAL) |
23caaf19 DM |
2295 | return err; |
2296 | } else { /* UAC_VERSION_2 */ | |
2297 | struct uac2_output_terminal_descriptor *desc = p; | |
2298 | ||
2299 | if (desc->bLength < sizeof(*desc)) | |
2300 | continue; /* invalid descriptor? */ | |
6bc170e4 DM |
2301 | /* mark terminal ID as visited */ |
2302 | set_bit(desc->bTerminalID, state.unitbitmap); | |
23caaf19 DM |
2303 | state.oterm.id = desc->bTerminalID; |
2304 | state.oterm.type = le16_to_cpu(desc->wTerminalType); | |
2305 | state.oterm.name = desc->iTerminal; | |
2306 | err = parse_audio_unit(&state, desc->bSourceID); | |
83ea5d18 | 2307 | if (err < 0 && err != -EINVAL) |
23caaf19 | 2308 | return err; |
09414207 | 2309 | |
6bc170e4 DM |
2310 | /* |
2311 | * For UAC2, use the same approach to also add the | |
2312 | * clock selectors | |
2313 | */ | |
09414207 | 2314 | err = parse_audio_unit(&state, desc->bCSourceID); |
83ea5d18 | 2315 | if (err < 0 && err != -EINVAL) |
09414207 | 2316 | return err; |
23caaf19 | 2317 | } |
1da177e4 | 2318 | } |
23caaf19 | 2319 | |
1da177e4 LT |
2320 | return 0; |
2321 | } | |
84957a8a | 2322 | |
7b1eda22 | 2323 | void snd_usb_mixer_notify_id(struct usb_mixer_interface *mixer, int unitid) |
6639b6c2 | 2324 | { |
3360b84b | 2325 | struct usb_mixer_elem_list *list; |
6639b6c2 | 2326 | |
3360b84b | 2327 | for (list = mixer->id_elems[unitid]; list; list = list->next_id_elem) |
6639b6c2 | 2328 | snd_ctl_notify(mixer->chip->card, SNDRV_CTL_EVENT_MASK_VALUE, |
3360b84b | 2329 | &list->kctl->id); |
6639b6c2 CL |
2330 | } |
2331 | ||
ebfdeea3 | 2332 | static void snd_usb_mixer_dump_cval(struct snd_info_buffer *buffer, |
3360b84b | 2333 | struct usb_mixer_elem_list *list) |
ebfdeea3 | 2334 | { |
3360b84b | 2335 | struct usb_mixer_elem_info *cval = (struct usb_mixer_elem_info *)list; |
ebfdeea3 JK |
2336 | static char *val_types[] = {"BOOLEAN", "INV_BOOLEAN", |
2337 | "S8", "U8", "S16", "U16"}; | |
ebfdeea3 | 2338 | snd_iprintf(buffer, " Info: id=%i, control=%i, cmask=0x%x, " |
3360b84b | 2339 | "channels=%i, type=\"%s\"\n", cval->head.id, |
ebfdeea3 JK |
2340 | cval->control, cval->cmask, cval->channels, |
2341 | val_types[cval->val_type]); | |
2342 | snd_iprintf(buffer, " Volume: min=%i, max=%i, dBmin=%i, dBmax=%i\n", | |
2343 | cval->min, cval->max, cval->dBmin, cval->dBmax); | |
2344 | } | |
2345 | ||
2346 | static void snd_usb_mixer_proc_read(struct snd_info_entry *entry, | |
2347 | struct snd_info_buffer *buffer) | |
2348 | { | |
2349 | struct snd_usb_audio *chip = entry->private_data; | |
2350 | struct usb_mixer_interface *mixer; | |
3360b84b | 2351 | struct usb_mixer_elem_list *list; |
ebfdeea3 JK |
2352 | int unitid; |
2353 | ||
2354 | list_for_each_entry(mixer, &chip->mixer_list, list) { | |
2355 | snd_iprintf(buffer, | |
7affdc17 | 2356 | "USB Mixer: usb_id=0x%08x, ctrlif=%i, ctlerr=%i\n", |
3d8d4dcf | 2357 | chip->usb_id, snd_usb_ctrl_intf(chip), |
7affdc17 | 2358 | mixer->ignore_ctl_error); |
ebfdeea3 JK |
2359 | snd_iprintf(buffer, "Card: %s\n", chip->card->longname); |
2360 | for (unitid = 0; unitid < MAX_ID_ELEMS; unitid++) { | |
3360b84b TI |
2361 | for (list = mixer->id_elems[unitid]; list; |
2362 | list = list->next_id_elem) { | |
2363 | snd_iprintf(buffer, " Unit: %i\n", list->id); | |
2364 | if (list->kctl) | |
2365 | snd_iprintf(buffer, | |
2366 | " Control: name=\"%s\", index=%i\n", | |
2367 | list->kctl->id.name, | |
2368 | list->kctl->id.index); | |
2369 | if (list->dump) | |
2370 | list->dump(buffer, list); | |
2371 | } | |
ebfdeea3 JK |
2372 | } |
2373 | } | |
2374 | } | |
2375 | ||
e213e9cf DM |
2376 | static void snd_usb_mixer_interrupt_v2(struct usb_mixer_interface *mixer, |
2377 | int attribute, int value, int index) | |
2378 | { | |
3360b84b | 2379 | struct usb_mixer_elem_list *list; |
e213e9cf DM |
2380 | __u8 unitid = (index >> 8) & 0xff; |
2381 | __u8 control = (value >> 8) & 0xff; | |
2382 | __u8 channel = value & 0xff; | |
191227d9 | 2383 | unsigned int count = 0; |
e213e9cf DM |
2384 | |
2385 | if (channel >= MAX_CHANNELS) { | |
0ba41d91 TI |
2386 | usb_audio_dbg(mixer->chip, |
2387 | "%s(): bogus channel number %d\n", | |
2388 | __func__, channel); | |
e213e9cf DM |
2389 | return; |
2390 | } | |
2391 | ||
191227d9 DM |
2392 | for (list = mixer->id_elems[unitid]; list; list = list->next_id_elem) |
2393 | count++; | |
2394 | ||
2395 | if (count == 0) | |
2396 | return; | |
2397 | ||
3360b84b TI |
2398 | for (list = mixer->id_elems[unitid]; list; list = list->next_id_elem) { |
2399 | struct usb_mixer_elem_info *info; | |
2400 | ||
2401 | if (!list->kctl) | |
2402 | continue; | |
2403 | ||
2404 | info = (struct usb_mixer_elem_info *)list; | |
191227d9 | 2405 | if (count > 1 && info->control != control) |
e213e9cf DM |
2406 | continue; |
2407 | ||
2408 | switch (attribute) { | |
2409 | case UAC2_CS_CUR: | |
2410 | /* invalidate cache, so the value is read from the device */ | |
2411 | if (channel) | |
2412 | info->cached &= ~(1 << channel); | |
2413 | else /* master channel */ | |
2414 | info->cached = 0; | |
2415 | ||
2416 | snd_ctl_notify(mixer->chip->card, SNDRV_CTL_EVENT_MASK_VALUE, | |
3360b84b | 2417 | &info->head.kctl->id); |
e213e9cf DM |
2418 | break; |
2419 | ||
2420 | case UAC2_CS_RANGE: | |
2421 | /* TODO */ | |
2422 | break; | |
2423 | ||
2424 | case UAC2_CS_MEM: | |
2425 | /* TODO */ | |
2426 | break; | |
2427 | ||
2428 | default: | |
0ba41d91 TI |
2429 | usb_audio_dbg(mixer->chip, |
2430 | "unknown attribute %d in interrupt\n", | |
2431 | attribute); | |
e213e9cf DM |
2432 | break; |
2433 | } /* switch */ | |
2434 | } | |
2435 | } | |
2436 | ||
2437 | static void snd_usb_mixer_interrupt(struct urb *urb) | |
6639b6c2 CL |
2438 | { |
2439 | struct usb_mixer_interface *mixer = urb->context; | |
e213e9cf | 2440 | int len = urb->actual_length; |
edf7de31 | 2441 | int ustatus = urb->status; |
e213e9cf | 2442 | |
edf7de31 | 2443 | if (ustatus != 0) |
e213e9cf | 2444 | goto requeue; |
6639b6c2 | 2445 | |
e213e9cf DM |
2446 | if (mixer->protocol == UAC_VERSION_1) { |
2447 | struct uac1_status_word *status; | |
6639b6c2 | 2448 | |
e213e9cf DM |
2449 | for (status = urb->transfer_buffer; |
2450 | len >= sizeof(*status); | |
2451 | len -= sizeof(*status), status++) { | |
0ba41d91 | 2452 | dev_dbg(&urb->dev->dev, "status interrupt: %02x %02x\n", |
e213e9cf DM |
2453 | status->bStatusType, |
2454 | status->bOriginator); | |
2455 | ||
6639b6c2 | 2456 | /* ignore any notifications not from the control interface */ |
e213e9cf DM |
2457 | if ((status->bStatusType & UAC1_STATUS_TYPE_ORIG_MASK) != |
2458 | UAC1_STATUS_TYPE_ORIG_AUDIO_CONTROL_IF) | |
6639b6c2 | 2459 | continue; |
e213e9cf DM |
2460 | |
2461 | if (status->bStatusType & UAC1_STATUS_TYPE_MEM_CHANGED) | |
2462 | snd_usb_mixer_rc_memory_change(mixer, status->bOriginator); | |
b259b10c | 2463 | else |
e213e9cf DM |
2464 | snd_usb_mixer_notify_id(mixer, status->bOriginator); |
2465 | } | |
2466 | } else { /* UAC_VERSION_2 */ | |
2467 | struct uac2_interrupt_data_msg *msg; | |
2468 | ||
2469 | for (msg = urb->transfer_buffer; | |
2470 | len >= sizeof(*msg); | |
2471 | len -= sizeof(*msg), msg++) { | |
2472 | /* drop vendor specific and endpoint requests */ | |
2473 | if ((msg->bInfo & UAC2_INTERRUPT_DATA_MSG_VENDOR) || | |
2474 | (msg->bInfo & UAC2_INTERRUPT_DATA_MSG_EP)) | |
2475 | continue; | |
2476 | ||
2477 | snd_usb_mixer_interrupt_v2(mixer, msg->bAttribute, | |
2478 | le16_to_cpu(msg->wValue), | |
2479 | le16_to_cpu(msg->wIndex)); | |
6639b6c2 CL |
2480 | } |
2481 | } | |
e213e9cf DM |
2482 | |
2483 | requeue: | |
6bc170e4 DM |
2484 | if (ustatus != -ENOENT && |
2485 | ustatus != -ECONNRESET && | |
2486 | ustatus != -ESHUTDOWN) { | |
6639b6c2 CL |
2487 | urb->dev = mixer->chip->dev; |
2488 | usb_submit_urb(urb, GFP_ATOMIC); | |
2489 | } | |
2490 | } | |
2491 | ||
2492 | /* create the handler for the optional status interrupt endpoint */ | |
2493 | static int snd_usb_mixer_status_create(struct usb_mixer_interface *mixer) | |
2494 | { | |
6639b6c2 CL |
2495 | struct usb_endpoint_descriptor *ep; |
2496 | void *transfer_buffer; | |
2497 | int buffer_length; | |
2498 | unsigned int epnum; | |
2499 | ||
6639b6c2 | 2500 | /* we need one interrupt input endpoint */ |
1faa5d07 | 2501 | if (get_iface_desc(mixer->hostif)->bNumEndpoints < 1) |
6639b6c2 | 2502 | return 0; |
1faa5d07 | 2503 | ep = get_endpoint(mixer->hostif, 0); |
913ae5a2 | 2504 | if (!usb_endpoint_dir_in(ep) || !usb_endpoint_xfer_int(ep)) |
6639b6c2 CL |
2505 | return 0; |
2506 | ||
42a6e66f | 2507 | epnum = usb_endpoint_num(ep); |
6639b6c2 CL |
2508 | buffer_length = le16_to_cpu(ep->wMaxPacketSize); |
2509 | transfer_buffer = kmalloc(buffer_length, GFP_KERNEL); | |
2510 | if (!transfer_buffer) | |
2511 | return -ENOMEM; | |
2512 | mixer->urb = usb_alloc_urb(0, GFP_KERNEL); | |
2513 | if (!mixer->urb) { | |
2514 | kfree(transfer_buffer); | |
2515 | return -ENOMEM; | |
2516 | } | |
2517 | usb_fill_int_urb(mixer->urb, mixer->chip->dev, | |
2518 | usb_rcvintpipe(mixer->chip->dev, epnum), | |
2519 | transfer_buffer, buffer_length, | |
e213e9cf | 2520 | snd_usb_mixer_interrupt, mixer, ep->bInterval); |
6639b6c2 CL |
2521 | usb_submit_urb(mixer->urb, GFP_KERNEL); |
2522 | return 0; | |
2523 | } | |
2524 | ||
7a9b8063 TI |
2525 | int snd_usb_create_mixer(struct snd_usb_audio *chip, int ctrlif, |
2526 | int ignore_error) | |
84957a8a | 2527 | { |
86e07d34 | 2528 | static struct snd_device_ops dev_ops = { |
84957a8a CL |
2529 | .dev_free = snd_usb_mixer_dev_free |
2530 | }; | |
2531 | struct usb_mixer_interface *mixer; | |
ebfdeea3 | 2532 | struct snd_info_entry *entry; |
23caaf19 | 2533 | int err; |
84957a8a CL |
2534 | |
2535 | strcpy(chip->card->mixername, "USB Mixer"); | |
2536 | ||
561b220a | 2537 | mixer = kzalloc(sizeof(*mixer), GFP_KERNEL); |
84957a8a CL |
2538 | if (!mixer) |
2539 | return -ENOMEM; | |
2540 | mixer->chip = chip; | |
7a9b8063 | 2541 | mixer->ignore_ctl_error = ignore_error; |
291186e0 JK |
2542 | mixer->id_elems = kcalloc(MAX_ID_ELEMS, sizeof(*mixer->id_elems), |
2543 | GFP_KERNEL); | |
6639b6c2 CL |
2544 | if (!mixer->id_elems) { |
2545 | kfree(mixer); | |
2546 | return -ENOMEM; | |
2547 | } | |
84957a8a | 2548 | |
1faa5d07 DM |
2549 | mixer->hostif = &usb_ifnum_to_if(chip->dev, ctrlif)->altsetting[0]; |
2550 | switch (get_iface_desc(mixer->hostif)->bInterfaceProtocol) { | |
a2acad82 CL |
2551 | case UAC_VERSION_1: |
2552 | default: | |
2553 | mixer->protocol = UAC_VERSION_1; | |
2554 | break; | |
2555 | case UAC_VERSION_2: | |
2556 | mixer->protocol = UAC_VERSION_2; | |
2557 | break; | |
2558 | } | |
7b8a043f | 2559 | |
6639b6c2 | 2560 | if ((err = snd_usb_mixer_controls(mixer)) < 0 || |
93446edc CL |
2561 | (err = snd_usb_mixer_status_create(mixer)) < 0) |
2562 | goto _error; | |
84957a8a | 2563 | |
7b1eda22 | 2564 | snd_usb_mixer_apply_create_quirk(mixer); |
468b8fde | 2565 | |
9cbb2808 | 2566 | err = snd_device_new(chip->card, SNDRV_DEV_CODEC, mixer, &dev_ops); |
93446edc CL |
2567 | if (err < 0) |
2568 | goto _error; | |
ebfdeea3 JK |
2569 | |
2570 | if (list_empty(&chip->mixer_list) && | |
2571 | !snd_card_proc_new(chip->card, "usbmixer", &entry)) | |
2572 | snd_info_set_text_ops(entry, chip, snd_usb_mixer_proc_read); | |
2573 | ||
84957a8a CL |
2574 | list_add(&mixer->list, &chip->mixer_list); |
2575 | return 0; | |
93446edc CL |
2576 | |
2577 | _error: | |
2578 | snd_usb_mixer_free(mixer); | |
2579 | return err; | |
84957a8a CL |
2580 | } |
2581 | ||
a6cece9d | 2582 | void snd_usb_mixer_disconnect(struct usb_mixer_interface *mixer) |
84957a8a | 2583 | { |
440be1bb TI |
2584 | if (mixer->disconnected) |
2585 | return; | |
2586 | if (mixer->urb) | |
2587 | usb_kill_urb(mixer->urb); | |
2588 | if (mixer->rc_urb) | |
2589 | usb_kill_urb(mixer->rc_urb); | |
2590 | mixer->disconnected = true; | |
84957a8a | 2591 | } |
400362f1 TI |
2592 | |
2593 | #ifdef CONFIG_PM | |
2594 | /* stop any bus activity of a mixer */ | |
2595 | static void snd_usb_mixer_inactivate(struct usb_mixer_interface *mixer) | |
2596 | { | |
2597 | usb_kill_urb(mixer->urb); | |
2598 | usb_kill_urb(mixer->rc_urb); | |
2599 | } | |
2600 | ||
2601 | static int snd_usb_mixer_activate(struct usb_mixer_interface *mixer) | |
2602 | { | |
2603 | int err; | |
2604 | ||
2605 | if (mixer->urb) { | |
2606 | err = usb_submit_urb(mixer->urb, GFP_NOIO); | |
2607 | if (err < 0) | |
2608 | return err; | |
2609 | } | |
2610 | ||
2611 | return 0; | |
2612 | } | |
2613 | ||
2614 | int snd_usb_mixer_suspend(struct usb_mixer_interface *mixer) | |
2615 | { | |
2616 | snd_usb_mixer_inactivate(mixer); | |
2617 | return 0; | |
2618 | } | |
2619 | ||
3360b84b | 2620 | static int restore_mixer_value(struct usb_mixer_elem_list *list) |
400362f1 | 2621 | { |
3360b84b | 2622 | struct usb_mixer_elem_info *cval = (struct usb_mixer_elem_info *)list; |
400362f1 TI |
2623 | int c, err, idx; |
2624 | ||
2625 | if (cval->cmask) { | |
2626 | idx = 0; | |
2627 | for (c = 0; c < MAX_CHANNELS; c++) { | |
2628 | if (!(cval->cmask & (1 << c))) | |
2629 | continue; | |
6aa6925c | 2630 | if (cval->cached & (1 << (c + 1))) { |
eef90451 | 2631 | err = snd_usb_set_cur_mix_value(cval, c + 1, idx, |
400362f1 TI |
2632 | cval->cache_val[idx]); |
2633 | if (err < 0) | |
2634 | return err; | |
2635 | } | |
2636 | idx++; | |
2637 | } | |
2638 | } else { | |
2639 | /* master */ | |
2640 | if (cval->cached) { | |
eef90451 | 2641 | err = snd_usb_set_cur_mix_value(cval, 0, 0, *cval->cache_val); |
400362f1 TI |
2642 | if (err < 0) |
2643 | return err; | |
2644 | } | |
2645 | } | |
2646 | ||
2647 | return 0; | |
2648 | } | |
2649 | ||
2650 | int snd_usb_mixer_resume(struct usb_mixer_interface *mixer, bool reset_resume) | |
2651 | { | |
3360b84b | 2652 | struct usb_mixer_elem_list *list; |
400362f1 TI |
2653 | int id, err; |
2654 | ||
400362f1 TI |
2655 | if (reset_resume) { |
2656 | /* restore cached mixer values */ | |
2657 | for (id = 0; id < MAX_ID_ELEMS; id++) { | |
3360b84b TI |
2658 | for (list = mixer->id_elems[id]; list; |
2659 | list = list->next_id_elem) { | |
2660 | if (list->resume) { | |
2661 | err = list->resume(list); | |
2662 | if (err < 0) | |
2663 | return err; | |
2664 | } | |
400362f1 TI |
2665 | } |
2666 | } | |
2667 | } | |
2668 | ||
2669 | return snd_usb_mixer_activate(mixer); | |
2670 | } | |
2671 | #endif | |
3360b84b TI |
2672 | |
2673 | void snd_usb_mixer_elem_init_std(struct usb_mixer_elem_list *list, | |
2674 | struct usb_mixer_interface *mixer, | |
2675 | int unitid) | |
2676 | { | |
2677 | list->mixer = mixer; | |
2678 | list->id = unitid; | |
2679 | list->dump = snd_usb_mixer_dump_cval; | |
2680 | #ifdef CONFIG_PM | |
2681 | list->resume = restore_mixer_value; | |
2682 | #endif | |
2683 | } |