Commit | Line | Data |
---|---|---|
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); | |
251552a2 JK |
207 | |
208 | if (len < 0) | |
209 | return 0; | |
210 | ||
1da177e4 LT |
211 | buf[len] = 0; |
212 | return len; | |
213 | } | |
214 | ||
215 | /* | |
216 | * convert from the byte/word on usb descriptor to the zero-based integer | |
217 | */ | |
86e07d34 | 218 | static int convert_signed_value(struct usb_mixer_elem_info *cval, int val) |
1da177e4 LT |
219 | { |
220 | switch (cval->val_type) { | |
221 | case USB_MIXER_BOOLEAN: | |
222 | return !!val; | |
223 | case USB_MIXER_INV_BOOLEAN: | |
224 | return !val; | |
225 | case USB_MIXER_U8: | |
226 | val &= 0xff; | |
227 | break; | |
228 | case USB_MIXER_S8: | |
229 | val &= 0xff; | |
230 | if (val >= 0x80) | |
231 | val -= 0x100; | |
232 | break; | |
233 | case USB_MIXER_U16: | |
234 | val &= 0xffff; | |
235 | break; | |
236 | case USB_MIXER_S16: | |
237 | val &= 0xffff; | |
238 | if (val >= 0x8000) | |
239 | val -= 0x10000; | |
240 | break; | |
241 | } | |
242 | return val; | |
243 | } | |
244 | ||
245 | /* | |
246 | * convert from the zero-based int to the byte/word for usb descriptor | |
247 | */ | |
86e07d34 | 248 | static int convert_bytes_value(struct usb_mixer_elem_info *cval, int val) |
1da177e4 LT |
249 | { |
250 | switch (cval->val_type) { | |
251 | case USB_MIXER_BOOLEAN: | |
252 | return !!val; | |
253 | case USB_MIXER_INV_BOOLEAN: | |
254 | return !val; | |
255 | case USB_MIXER_S8: | |
256 | case USB_MIXER_U8: | |
257 | return val & 0xff; | |
258 | case USB_MIXER_S16: | |
259 | case USB_MIXER_U16: | |
260 | return val & 0xffff; | |
261 | } | |
262 | return 0; /* not reached */ | |
263 | } | |
264 | ||
86e07d34 | 265 | static int get_relative_value(struct usb_mixer_elem_info *cval, int val) |
1da177e4 | 266 | { |
6bc170e4 | 267 | if (!cval->res) |
1da177e4 LT |
268 | cval->res = 1; |
269 | if (val < cval->min) | |
270 | return 0; | |
14790f1c TI |
271 | else if (val >= cval->max) |
272 | return (cval->max - cval->min + cval->res - 1) / cval->res; | |
1da177e4 LT |
273 | else |
274 | return (val - cval->min) / cval->res; | |
275 | } | |
276 | ||
86e07d34 | 277 | static int get_abs_value(struct usb_mixer_elem_info *cval, int val) |
1da177e4 LT |
278 | { |
279 | if (val < 0) | |
280 | return cval->min; | |
6bc170e4 | 281 | if (!cval->res) |
1da177e4 LT |
282 | cval->res = 1; |
283 | val *= cval->res; | |
284 | val += cval->min; | |
285 | if (val > cval->max) | |
286 | return cval->max; | |
287 | return val; | |
288 | } | |
289 | ||
bc18e31c JS |
290 | static int uac2_ctl_value_size(int val_type) |
291 | { | |
292 | switch (val_type) { | |
293 | case USB_MIXER_S32: | |
294 | case USB_MIXER_U32: | |
295 | return 4; | |
296 | case USB_MIXER_S16: | |
297 | case USB_MIXER_U16: | |
298 | return 2; | |
299 | default: | |
300 | return 1; | |
301 | } | |
302 | return 0; /* unreachable */ | |
303 | } | |
304 | ||
1da177e4 LT |
305 | |
306 | /* | |
307 | * retrieve a mixer value | |
308 | */ | |
309 | ||
6bc170e4 DM |
310 | static int get_ctl_value_v1(struct usb_mixer_elem_info *cval, int request, |
311 | int validx, int *value_ret) | |
1da177e4 | 312 | { |
3360b84b | 313 | struct snd_usb_audio *chip = cval->head.mixer->chip; |
1da177e4 LT |
314 | unsigned char buf[2]; |
315 | int val_len = cval->val_type >= USB_MIXER_S16 ? 2 : 1; | |
316 | int timeout = 10; | |
978520b7 | 317 | int idx = 0, err; |
1da177e4 | 318 | |
47ab1545 | 319 | err = snd_usb_lock_shutdown(chip); |
88a8516a ON |
320 | if (err < 0) |
321 | return -EIO; | |
6bc170e4 | 322 | |
1da177e4 | 323 | while (timeout-- > 0) { |
3360b84b | 324 | idx = snd_usb_ctrl_intf(chip) | (cval->head.id << 8); |
5a9a8eca SB |
325 | err = snd_usb_ctl_msg(chip->dev, usb_rcvctrlpipe(chip->dev, 0), request, |
326 | USB_RECIP_INTERFACE | USB_TYPE_CLASS | USB_DIR_IN, | |
327 | validx, idx, buf, val_len); | |
328 | if (err >= val_len) { | |
1da177e4 | 329 | *value_ret = convert_signed_value(cval, snd_usb_combine_bytes(buf, val_len)); |
978520b7 TI |
330 | err = 0; |
331 | goto out; | |
5a9a8eca SB |
332 | } else if (err == -ETIMEDOUT) { |
333 | goto out; | |
1da177e4 LT |
334 | } |
335 | } | |
0ba41d91 TI |
336 | usb_audio_dbg(chip, |
337 | "cannot get ctl value: req = %#x, wValue = %#x, wIndex = %#x, type = %d\n", | |
338 | request, validx, idx, cval->val_type); | |
978520b7 TI |
339 | err = -EINVAL; |
340 | ||
341 | out: | |
47ab1545 | 342 | snd_usb_unlock_shutdown(chip); |
978520b7 | 343 | return err; |
1da177e4 LT |
344 | } |
345 | ||
6bc170e4 DM |
346 | static int get_ctl_value_v2(struct usb_mixer_elem_info *cval, int request, |
347 | int validx, int *value_ret) | |
23caaf19 | 348 | { |
3360b84b | 349 | struct snd_usb_audio *chip = cval->head.mixer->chip; |
447cae58 KM |
350 | /* enough space for one range */ |
351 | unsigned char buf[sizeof(__u16) + 3 * sizeof(__u32)]; | |
23caaf19 | 352 | unsigned char *val; |
447cae58 | 353 | int idx = 0, ret, val_size, size; |
23caaf19 DM |
354 | __u8 bRequest; |
355 | ||
447cae58 KM |
356 | val_size = uac2_ctl_value_size(cval->val_type); |
357 | ||
e8bdb6bb DM |
358 | if (request == UAC_GET_CUR) { |
359 | bRequest = UAC2_CS_CUR; | |
447cae58 | 360 | size = val_size; |
e8bdb6bb DM |
361 | } else { |
362 | bRequest = UAC2_CS_RANGE; | |
447cae58 | 363 | size = sizeof(__u16) + 3 * val_size; |
e8bdb6bb DM |
364 | } |
365 | ||
366 | memset(buf, 0, sizeof(buf)); | |
23caaf19 | 367 | |
47ab1545 | 368 | ret = snd_usb_lock_shutdown(chip) ? -EIO : 0; |
88a8516a ON |
369 | if (ret) |
370 | goto error; | |
371 | ||
47ab1545 TI |
372 | idx = snd_usb_ctrl_intf(chip) | (cval->head.id << 8); |
373 | ret = snd_usb_ctl_msg(chip->dev, usb_rcvctrlpipe(chip->dev, 0), bRequest, | |
23caaf19 | 374 | USB_RECIP_INTERFACE | USB_TYPE_CLASS | USB_DIR_IN, |
978520b7 | 375 | validx, idx, buf, size); |
47ab1545 | 376 | snd_usb_unlock_shutdown(chip); |
23caaf19 DM |
377 | |
378 | if (ret < 0) { | |
88a8516a | 379 | error: |
0ba41d91 TI |
380 | usb_audio_err(chip, |
381 | "cannot get ctl value: req = %#x, wValue = %#x, wIndex = %#x, type = %d\n", | |
382 | request, validx, idx, cval->val_type); | |
23caaf19 DM |
383 | return ret; |
384 | } | |
385 | ||
e8bdb6bb DM |
386 | /* FIXME: how should we handle multiple triplets here? */ |
387 | ||
23caaf19 DM |
388 | switch (request) { |
389 | case UAC_GET_CUR: | |
390 | val = buf; | |
391 | break; | |
392 | case UAC_GET_MIN: | |
393 | val = buf + sizeof(__u16); | |
394 | break; | |
395 | case UAC_GET_MAX: | |
447cae58 | 396 | val = buf + sizeof(__u16) + val_size; |
23caaf19 DM |
397 | break; |
398 | case UAC_GET_RES: | |
447cae58 | 399 | val = buf + sizeof(__u16) + val_size * 2; |
23caaf19 DM |
400 | break; |
401 | default: | |
402 | return -EINVAL; | |
403 | } | |
404 | ||
447cae58 KM |
405 | *value_ret = convert_signed_value(cval, |
406 | snd_usb_combine_bytes(val, val_size)); | |
23caaf19 DM |
407 | |
408 | return 0; | |
409 | } | |
410 | ||
6bc170e4 DM |
411 | static int get_ctl_value(struct usb_mixer_elem_info *cval, int request, |
412 | int validx, int *value_ret) | |
23caaf19 | 413 | { |
9f814105 EZ |
414 | validx += cval->idx_off; |
415 | ||
3360b84b | 416 | return (cval->head.mixer->protocol == UAC_VERSION_1) ? |
23caaf19 DM |
417 | get_ctl_value_v1(cval, request, validx, value_ret) : |
418 | get_ctl_value_v2(cval, request, validx, value_ret); | |
419 | } | |
420 | ||
6bc170e4 DM |
421 | static int get_cur_ctl_value(struct usb_mixer_elem_info *cval, |
422 | int validx, int *value) | |
1da177e4 | 423 | { |
de48c7bc | 424 | return get_ctl_value(cval, UAC_GET_CUR, validx, value); |
1da177e4 LT |
425 | } |
426 | ||
427 | /* channel = 0: master, 1 = first channel */ | |
641b4879 TI |
428 | static inline int get_cur_mix_raw(struct usb_mixer_elem_info *cval, |
429 | int channel, int *value) | |
1da177e4 | 430 | { |
6bc170e4 DM |
431 | return get_ctl_value(cval, UAC_GET_CUR, |
432 | (cval->control << 8) | channel, | |
433 | value); | |
1da177e4 LT |
434 | } |
435 | ||
eef90451 | 436 | int snd_usb_get_cur_mix_value(struct usb_mixer_elem_info *cval, |
641b4879 TI |
437 | int channel, int index, int *value) |
438 | { | |
439 | int err; | |
440 | ||
441 | if (cval->cached & (1 << channel)) { | |
442 | *value = cval->cache_val[index]; | |
443 | return 0; | |
444 | } | |
445 | err = get_cur_mix_raw(cval, channel, value); | |
446 | if (err < 0) { | |
3360b84b TI |
447 | if (!cval->head.mixer->ignore_ctl_error) |
448 | usb_audio_dbg(cval->head.mixer->chip, | |
0ba41d91 | 449 | "cannot get current value for control %d ch %d: err = %d\n", |
6bc170e4 | 450 | cval->control, channel, err); |
641b4879 TI |
451 | return err; |
452 | } | |
453 | cval->cached |= 1 << channel; | |
454 | cval->cache_val[index] = *value; | |
455 | return 0; | |
456 | } | |
457 | ||
1da177e4 LT |
458 | /* |
459 | * set a mixer value | |
460 | */ | |
461 | ||
7b1eda22 DM |
462 | int snd_usb_mixer_set_ctl_value(struct usb_mixer_elem_info *cval, |
463 | int request, int validx, int value_set) | |
1da177e4 | 464 | { |
3360b84b | 465 | struct snd_usb_audio *chip = cval->head.mixer->chip; |
bc18e31c | 466 | unsigned char buf[4]; |
978520b7 | 467 | int idx = 0, val_len, err, timeout = 10; |
23caaf19 | 468 | |
9f814105 EZ |
469 | validx += cval->idx_off; |
470 | ||
3360b84b | 471 | if (cval->head.mixer->protocol == UAC_VERSION_1) { |
23caaf19 DM |
472 | val_len = cval->val_type >= USB_MIXER_S16 ? 2 : 1; |
473 | } else { /* UAC_VERSION_2 */ | |
bc18e31c | 474 | val_len = uac2_ctl_value_size(cval->val_type); |
23caaf19 DM |
475 | |
476 | /* FIXME */ | |
477 | if (request != UAC_SET_CUR) { | |
0ba41d91 | 478 | usb_audio_dbg(chip, "RANGE setting not yet supported\n"); |
23caaf19 DM |
479 | return -EINVAL; |
480 | } | |
481 | ||
482 | request = UAC2_CS_CUR; | |
483 | } | |
1da177e4 LT |
484 | |
485 | value_set = convert_bytes_value(cval, value_set); | |
486 | buf[0] = value_set & 0xff; | |
487 | buf[1] = (value_set >> 8) & 0xff; | |
bc18e31c JS |
488 | buf[2] = (value_set >> 16) & 0xff; |
489 | buf[3] = (value_set >> 24) & 0xff; | |
47ab1545 TI |
490 | |
491 | err = snd_usb_lock_shutdown(chip); | |
88a8516a ON |
492 | if (err < 0) |
493 | return -EIO; | |
47ab1545 | 494 | |
978520b7 | 495 | while (timeout-- > 0) { |
3360b84b | 496 | idx = snd_usb_ctrl_intf(chip) | (cval->head.id << 8); |
5a9a8eca SB |
497 | err = snd_usb_ctl_msg(chip->dev, |
498 | usb_sndctrlpipe(chip->dev, 0), request, | |
499 | USB_RECIP_INTERFACE | USB_TYPE_CLASS | USB_DIR_OUT, | |
500 | validx, idx, buf, val_len); | |
501 | if (err >= 0) { | |
978520b7 TI |
502 | err = 0; |
503 | goto out; | |
5a9a8eca SB |
504 | } else if (err == -ETIMEDOUT) { |
505 | goto out; | |
88a8516a | 506 | } |
978520b7 | 507 | } |
0ba41d91 | 508 | usb_audio_dbg(chip, "cannot set ctl value: req = %#x, wValue = %#x, wIndex = %#x, type = %d, data = %#x/%#x\n", |
6bc170e4 | 509 | request, validx, idx, cval->val_type, buf[0], buf[1]); |
978520b7 TI |
510 | err = -EINVAL; |
511 | ||
512 | out: | |
47ab1545 | 513 | snd_usb_unlock_shutdown(chip); |
978520b7 | 514 | return err; |
1da177e4 LT |
515 | } |
516 | ||
6bc170e4 DM |
517 | static int set_cur_ctl_value(struct usb_mixer_elem_info *cval, |
518 | int validx, int value) | |
1da177e4 | 519 | { |
7b1eda22 | 520 | return snd_usb_mixer_set_ctl_value(cval, UAC_SET_CUR, validx, value); |
1da177e4 LT |
521 | } |
522 | ||
eef90451 | 523 | int snd_usb_set_cur_mix_value(struct usb_mixer_elem_info *cval, int channel, |
641b4879 | 524 | int index, int value) |
1da177e4 | 525 | { |
641b4879 | 526 | int err; |
a6a33259 DM |
527 | unsigned int read_only = (channel == 0) ? |
528 | cval->master_readonly : | |
529 | cval->ch_readonly & (1 << (channel - 1)); | |
530 | ||
531 | if (read_only) { | |
3360b84b | 532 | usb_audio_dbg(cval->head.mixer->chip, |
0ba41d91 | 533 | "%s(): channel %d of control %d is read_only\n", |
a6a33259 DM |
534 | __func__, channel, cval->control); |
535 | return 0; | |
536 | } | |
537 | ||
6bc170e4 DM |
538 | err = snd_usb_mixer_set_ctl_value(cval, |
539 | UAC_SET_CUR, (cval->control << 8) | channel, | |
540 | value); | |
641b4879 TI |
541 | if (err < 0) |
542 | return err; | |
543 | cval->cached |= 1 << channel; | |
544 | cval->cache_val[index] = value; | |
545 | return 0; | |
1da177e4 LT |
546 | } |
547 | ||
7bc5ba7e TI |
548 | /* |
549 | * TLV callback for mixer volume controls | |
550 | */ | |
285de9c0 | 551 | int snd_usb_mixer_vol_tlv(struct snd_kcontrol *kcontrol, int op_flag, |
7bc5ba7e TI |
552 | unsigned int size, unsigned int __user *_tlv) |
553 | { | |
554 | struct usb_mixer_elem_info *cval = kcontrol->private_data; | |
b8e1c73f | 555 | DECLARE_TLV_DB_MINMAX(scale, 0, 0); |
7bc5ba7e TI |
556 | |
557 | if (size < sizeof(scale)) | |
558 | return -ENOMEM; | |
0f174b35 TI |
559 | if (cval->min_mute) |
560 | scale[0] = SNDRV_CTL_TLVT_DB_MINMAX_MUTE; | |
c3a3e040 JK |
561 | scale[2] = cval->dBmin; |
562 | scale[3] = cval->dBmax; | |
7bc5ba7e TI |
563 | if (copy_to_user(_tlv, scale, sizeof(scale))) |
564 | return -EFAULT; | |
565 | return 0; | |
566 | } | |
1da177e4 LT |
567 | |
568 | /* | |
569 | * parser routines begin here... | |
570 | */ | |
571 | ||
86e07d34 | 572 | static int parse_audio_unit(struct mixer_build *state, int unitid); |
1da177e4 LT |
573 | |
574 | ||
575 | /* | |
576 | * check if the input/output channel routing is enabled on the given bitmap. | |
577 | * used for mixer unit parser | |
578 | */ | |
6bc170e4 DM |
579 | static int check_matrix_bitmap(unsigned char *bmap, |
580 | int ich, int och, int num_outs) | |
1da177e4 LT |
581 | { |
582 | int idx = ich * num_outs + och; | |
583 | return bmap[idx >> 3] & (0x80 >> (idx & 7)); | |
584 | } | |
585 | ||
1da177e4 LT |
586 | /* |
587 | * add an alsa control element | |
588 | * search and increment the index until an empty slot is found. | |
589 | * | |
590 | * if failed, give up and free the control instance. | |
591 | */ | |
592 | ||
3360b84b | 593 | int snd_usb_mixer_add_control(struct usb_mixer_elem_list *list, |
ef9d5970 | 594 | struct snd_kcontrol *kctl) |
1da177e4 | 595 | { |
3360b84b | 596 | struct usb_mixer_interface *mixer = list->mixer; |
1da177e4 | 597 | int err; |
84957a8a | 598 | |
ef9d5970 | 599 | while (snd_ctl_find_id(mixer->chip->card, &kctl->id)) |
1da177e4 | 600 | kctl->id.index++; |
ef9d5970 | 601 | if ((err = snd_ctl_add(mixer->chip->card, kctl)) < 0) { |
6bc170e4 DM |
602 | usb_audio_dbg(mixer->chip, "cannot add control (err = %d)\n", |
603 | err); | |
6639b6c2 | 604 | return err; |
1da177e4 | 605 | } |
3360b84b TI |
606 | list->kctl = kctl; |
607 | list->next_id_elem = mixer->id_elems[list->id]; | |
608 | mixer->id_elems[list->id] = list; | |
6639b6c2 | 609 | return 0; |
1da177e4 LT |
610 | } |
611 | ||
1da177e4 LT |
612 | /* |
613 | * get a terminal name string | |
614 | */ | |
615 | ||
616 | static struct iterm_name_combo { | |
617 | int type; | |
618 | char *name; | |
619 | } iterm_names[] = { | |
620 | { 0x0300, "Output" }, | |
621 | { 0x0301, "Speaker" }, | |
622 | { 0x0302, "Headphone" }, | |
623 | { 0x0303, "HMD Audio" }, | |
624 | { 0x0304, "Desktop Speaker" }, | |
625 | { 0x0305, "Room Speaker" }, | |
626 | { 0x0306, "Com Speaker" }, | |
627 | { 0x0307, "LFE" }, | |
628 | { 0x0600, "External In" }, | |
629 | { 0x0601, "Analog In" }, | |
630 | { 0x0602, "Digital In" }, | |
631 | { 0x0603, "Line" }, | |
632 | { 0x0604, "Legacy In" }, | |
633 | { 0x0605, "IEC958 In" }, | |
634 | { 0x0606, "1394 DA Stream" }, | |
635 | { 0x0607, "1394 DV Stream" }, | |
636 | { 0x0700, "Embedded" }, | |
637 | { 0x0701, "Noise Source" }, | |
638 | { 0x0702, "Equalization Noise" }, | |
639 | { 0x0703, "CD" }, | |
640 | { 0x0704, "DAT" }, | |
641 | { 0x0705, "DCC" }, | |
642 | { 0x0706, "MiniDisk" }, | |
643 | { 0x0707, "Analog Tape" }, | |
644 | { 0x0708, "Phonograph" }, | |
645 | { 0x0709, "VCR Audio" }, | |
646 | { 0x070a, "Video Disk Audio" }, | |
647 | { 0x070b, "DVD Audio" }, | |
648 | { 0x070c, "TV Tuner Audio" }, | |
649 | { 0x070d, "Satellite Rec Audio" }, | |
650 | { 0x070e, "Cable Tuner Audio" }, | |
651 | { 0x070f, "DSS Audio" }, | |
652 | { 0x0710, "Radio Receiver" }, | |
653 | { 0x0711, "Radio Transmitter" }, | |
654 | { 0x0712, "Multi-Track Recorder" }, | |
655 | { 0x0713, "Synthesizer" }, | |
656 | { 0 }, | |
657 | }; | |
658 | ||
86e07d34 | 659 | static int get_term_name(struct mixer_build *state, struct usb_audio_term *iterm, |
1da177e4 LT |
660 | unsigned char *name, int maxlen, int term_only) |
661 | { | |
662 | struct iterm_name_combo *names; | |
56a23ee5 | 663 | int len; |
1da177e4 | 664 | |
56a23ee5 TI |
665 | if (iterm->name) { |
666 | len = snd_usb_copy_string_desc(state, iterm->name, | |
6bc170e4 | 667 | name, maxlen); |
56a23ee5 TI |
668 | if (len) |
669 | return len; | |
670 | } | |
1da177e4 LT |
671 | |
672 | /* virtual type - not a real terminal */ | |
673 | if (iterm->type >> 16) { | |
674 | if (term_only) | |
675 | return 0; | |
676 | switch (iterm->type >> 16) { | |
de48c7bc | 677 | case UAC_SELECTOR_UNIT: |
6bc170e4 DM |
678 | strcpy(name, "Selector"); |
679 | return 8; | |
69da9bcb | 680 | case UAC1_PROCESSING_UNIT: |
6bc170e4 DM |
681 | strcpy(name, "Process Unit"); |
682 | return 12; | |
69da9bcb | 683 | case UAC1_EXTENSION_UNIT: |
6bc170e4 DM |
684 | strcpy(name, "Ext Unit"); |
685 | return 8; | |
de48c7bc | 686 | case UAC_MIXER_UNIT: |
6bc170e4 DM |
687 | strcpy(name, "Mixer"); |
688 | return 5; | |
1da177e4 LT |
689 | default: |
690 | return sprintf(name, "Unit %d", iterm->id); | |
691 | } | |
692 | } | |
693 | ||
694 | switch (iterm->type & 0xff00) { | |
695 | case 0x0100: | |
6bc170e4 DM |
696 | strcpy(name, "PCM"); |
697 | return 3; | |
1da177e4 | 698 | case 0x0200: |
6bc170e4 DM |
699 | strcpy(name, "Mic"); |
700 | return 3; | |
1da177e4 | 701 | case 0x0400: |
6bc170e4 DM |
702 | strcpy(name, "Headset"); |
703 | return 7; | |
1da177e4 | 704 | case 0x0500: |
6bc170e4 DM |
705 | strcpy(name, "Phone"); |
706 | return 5; | |
1da177e4 LT |
707 | } |
708 | ||
6bc170e4 | 709 | for (names = iterm_names; names->type; names++) { |
1da177e4 LT |
710 | if (names->type == iterm->type) { |
711 | strcpy(name, names->name); | |
712 | return strlen(names->name); | |
713 | } | |
6bc170e4 DM |
714 | } |
715 | ||
1da177e4 LT |
716 | return 0; |
717 | } | |
718 | ||
1da177e4 LT |
719 | /* |
720 | * parse the source unit recursively until it reaches to a terminal | |
721 | * or a branched unit. | |
722 | */ | |
6bc170e4 DM |
723 | static int check_input_term(struct mixer_build *state, int id, |
724 | struct usb_audio_term *term) | |
1da177e4 | 725 | { |
09414207 | 726 | int err; |
23caaf19 | 727 | void *p1; |
1da177e4 LT |
728 | |
729 | memset(term, 0, sizeof(*term)); | |
730 | while ((p1 = find_audio_control_unit(state, id)) != NULL) { | |
23caaf19 | 731 | unsigned char *hdr = p1; |
1da177e4 | 732 | term->id = id; |
23caaf19 | 733 | switch (hdr[2]) { |
de48c7bc | 734 | case UAC_INPUT_TERMINAL: |
23caaf19 DM |
735 | if (state->mixer->protocol == UAC_VERSION_1) { |
736 | struct uac_input_terminal_descriptor *d = p1; | |
737 | term->type = le16_to_cpu(d->wTerminalType); | |
738 | term->channels = d->bNrChannels; | |
739 | term->chconfig = le16_to_cpu(d->wChannelConfig); | |
740 | term->name = d->iTerminal; | |
741 | } else { /* UAC_VERSION_2 */ | |
742 | struct uac2_input_terminal_descriptor *d = p1; | |
09414207 | 743 | |
9430e547 JS |
744 | /* call recursively to verify that the |
745 | * referenced clock entity is valid */ | |
09414207 DM |
746 | err = check_input_term(state, d->bCSourceID, term); |
747 | if (err < 0) | |
748 | return err; | |
9430e547 JS |
749 | |
750 | /* save input term properties after recursion, | |
751 | * to ensure they are not overriden by the | |
752 | * recursion calls */ | |
753 | term->id = id; | |
754 | term->type = le16_to_cpu(d->wTerminalType); | |
755 | term->channels = d->bNrChannels; | |
756 | term->chconfig = le32_to_cpu(d->bmChannelConfig); | |
757 | term->name = d->iTerminal; | |
23caaf19 | 758 | } |
1da177e4 | 759 | return 0; |
23caaf19 DM |
760 | case UAC_FEATURE_UNIT: { |
761 | /* the header is the same for v1 and v2 */ | |
762 | struct uac_feature_unit_descriptor *d = p1; | |
5e688883 | 763 | id = d->bSourceID; |
1da177e4 | 764 | break; /* continue to parse */ |
23caaf19 DM |
765 | } |
766 | case UAC_MIXER_UNIT: { | |
767 | struct uac_mixer_unit_descriptor *d = p1; | |
768 | term->type = d->bDescriptorSubtype << 16; /* virtual type */ | |
769 | term->channels = uac_mixer_unit_bNrChannels(d); | |
770 | term->chconfig = uac_mixer_unit_wChannelConfig(d, state->mixer->protocol); | |
771 | term->name = uac_mixer_unit_iMixer(d); | |
1da177e4 | 772 | return 0; |
23caaf19 | 773 | } |
09414207 DM |
774 | case UAC_SELECTOR_UNIT: |
775 | case UAC2_CLOCK_SELECTOR: { | |
23caaf19 | 776 | struct uac_selector_unit_descriptor *d = p1; |
1da177e4 | 777 | /* call recursively to retrieve the channel info */ |
4d7b86c9 DM |
778 | err = check_input_term(state, d->baSourceID[0], term); |
779 | if (err < 0) | |
780 | return err; | |
23caaf19 | 781 | term->type = d->bDescriptorSubtype << 16; /* virtual type */ |
1da177e4 | 782 | term->id = id; |
23caaf19 | 783 | term->name = uac_selector_unit_iSelector(d); |
1da177e4 | 784 | return 0; |
23caaf19 | 785 | } |
69da9bcb | 786 | case UAC1_PROCESSING_UNIT: |
5dae5fd2 EZ |
787 | case UAC1_EXTENSION_UNIT: |
788 | /* UAC2_PROCESSING_UNIT_V2 */ | |
61ac5130 TH |
789 | /* UAC2_EFFECT_UNIT */ |
790 | case UAC2_EXTENSION_UNIT_V2: { | |
23caaf19 | 791 | struct uac_processing_unit_descriptor *d = p1; |
5dae5fd2 EZ |
792 | |
793 | if (state->mixer->protocol == UAC_VERSION_2 && | |
794 | hdr[2] == UAC2_EFFECT_UNIT) { | |
795 | /* UAC2/UAC1 unit IDs overlap here in an | |
796 | * uncompatible way. Ignore this unit for now. | |
797 | */ | |
798 | return 0; | |
799 | } | |
800 | ||
23caaf19 DM |
801 | if (d->bNrInPins) { |
802 | id = d->baSourceID[0]; | |
1da177e4 LT |
803 | break; /* continue to parse */ |
804 | } | |
23caaf19 DM |
805 | term->type = d->bDescriptorSubtype << 16; /* virtual type */ |
806 | term->channels = uac_processing_unit_bNrChannels(d); | |
807 | term->chconfig = uac_processing_unit_wChannelConfig(d, state->mixer->protocol); | |
808 | term->name = uac_processing_unit_iProcessing(d, state->mixer->protocol); | |
1da177e4 | 809 | return 0; |
23caaf19 | 810 | } |
09414207 DM |
811 | case UAC2_CLOCK_SOURCE: { |
812 | struct uac_clock_source_descriptor *d = p1; | |
813 | term->type = d->bDescriptorSubtype << 16; /* virtual type */ | |
814 | term->id = id; | |
815 | term->name = d->iClockSource; | |
816 | return 0; | |
817 | } | |
1da177e4 LT |
818 | default: |
819 | return -ENODEV; | |
820 | } | |
821 | } | |
822 | return -ENODEV; | |
823 | } | |
824 | ||
1da177e4 LT |
825 | /* |
826 | * Feature Unit | |
827 | */ | |
828 | ||
829 | /* feature unit control information */ | |
830 | struct usb_feature_control_info { | |
831 | const char *name; | |
bc18e31c JS |
832 | int type; /* data type for uac1 */ |
833 | int type_uac2; /* data type for uac2 if different from uac1, else -1 */ | |
1da177e4 LT |
834 | }; |
835 | ||
836 | static struct usb_feature_control_info audio_feature_info[] = { | |
bc18e31c JS |
837 | { "Mute", USB_MIXER_INV_BOOLEAN, -1 }, |
838 | { "Volume", USB_MIXER_S16, -1 }, | |
839 | { "Tone Control - Bass", USB_MIXER_S8, -1 }, | |
840 | { "Tone Control - Mid", USB_MIXER_S8, -1 }, | |
841 | { "Tone Control - Treble", USB_MIXER_S8, -1 }, | |
842 | { "Graphic Equalizer", USB_MIXER_S8, -1 }, /* FIXME: not implemeted yet */ | |
843 | { "Auto Gain Control", USB_MIXER_BOOLEAN, -1 }, | |
844 | { "Delay Control", USB_MIXER_U16, USB_MIXER_U32 }, | |
845 | { "Bass Boost", USB_MIXER_BOOLEAN, -1 }, | |
846 | { "Loudness", USB_MIXER_BOOLEAN, -1 }, | |
2e0281d1 | 847 | /* UAC2 specific */ |
bc18e31c JS |
848 | { "Input Gain Control", USB_MIXER_S16, -1 }, |
849 | { "Input Gain Pad Control", USB_MIXER_S16, -1 }, | |
850 | { "Phase Inverter Control", USB_MIXER_BOOLEAN, -1 }, | |
1da177e4 LT |
851 | }; |
852 | ||
1da177e4 | 853 | /* private_free callback */ |
eef90451 | 854 | void snd_usb_mixer_elem_free(struct snd_kcontrol *kctl) |
1da177e4 | 855 | { |
4d572776 JJ |
856 | kfree(kctl->private_data); |
857 | kctl->private_data = NULL; | |
1da177e4 LT |
858 | } |
859 | ||
1da177e4 LT |
860 | /* |
861 | * interface to ALSA control for feature/mixer units | |
862 | */ | |
863 | ||
dcaaf9f2 TI |
864 | /* volume control quirks */ |
865 | static void volume_control_quirks(struct usb_mixer_elem_info *cval, | |
866 | struct snd_kcontrol *kctl) | |
867 | { | |
3360b84b | 868 | struct snd_usb_audio *chip = cval->head.mixer->chip; |
0ba41d91 | 869 | switch (chip->usb_id) { |
d50ed624 | 870 | case USB_ID(0x0763, 0x2030): /* M-Audio Fast Track C400 */ |
e9a25e04 | 871 | case USB_ID(0x0763, 0x2031): /* M-Audio Fast Track C600 */ |
d50ed624 EZ |
872 | if (strcmp(kctl->id.name, "Effect Duration") == 0) { |
873 | cval->min = 0x0000; | |
874 | cval->max = 0xffff; | |
875 | cval->res = 0x00e6; | |
876 | break; | |
877 | } | |
878 | if (strcmp(kctl->id.name, "Effect Volume") == 0 || | |
879 | strcmp(kctl->id.name, "Effect Feedback Volume") == 0) { | |
880 | cval->min = 0x00; | |
881 | cval->max = 0xff; | |
882 | break; | |
883 | } | |
884 | if (strstr(kctl->id.name, "Effect Return") != NULL) { | |
885 | cval->min = 0xb706; | |
886 | cval->max = 0xff7b; | |
887 | cval->res = 0x0073; | |
888 | break; | |
889 | } | |
890 | if ((strstr(kctl->id.name, "Playback Volume") != NULL) || | |
891 | (strstr(kctl->id.name, "Effect Send") != NULL)) { | |
892 | cval->min = 0xb5fb; /* -73 dB = 0xb6ff */ | |
893 | cval->max = 0xfcfe; | |
894 | cval->res = 0x0073; | |
895 | } | |
896 | break; | |
897 | ||
d34bf148 FH |
898 | case USB_ID(0x0763, 0x2081): /* M-Audio Fast Track Ultra 8R */ |
899 | case USB_ID(0x0763, 0x2080): /* M-Audio Fast Track Ultra */ | |
900 | if (strcmp(kctl->id.name, "Effect Duration") == 0) { | |
0ba41d91 TI |
901 | usb_audio_info(chip, |
902 | "set quirk for FTU Effect Duration\n"); | |
d34bf148 FH |
903 | cval->min = 0x0000; |
904 | cval->max = 0x7f00; | |
905 | cval->res = 0x0100; | |
906 | break; | |
907 | } | |
908 | if (strcmp(kctl->id.name, "Effect Volume") == 0 || | |
909 | strcmp(kctl->id.name, "Effect Feedback Volume") == 0) { | |
0ba41d91 TI |
910 | usb_audio_info(chip, |
911 | "set quirks for FTU Effect Feedback/Volume\n"); | |
d34bf148 FH |
912 | cval->min = 0x00; |
913 | cval->max = 0x7f; | |
914 | break; | |
915 | } | |
916 | break; | |
917 | ||
dcaaf9f2 TI |
918 | case USB_ID(0x0471, 0x0101): |
919 | case USB_ID(0x0471, 0x0104): | |
920 | case USB_ID(0x0471, 0x0105): | |
921 | case USB_ID(0x0672, 0x1041): | |
922 | /* quirk for UDA1321/N101. | |
923 | * note that detection between firmware 2.1.1.7 (N101) | |
924 | * and later 2.1.1.21 is not very clear from datasheets. | |
925 | * I hope that the min value is -15360 for newer firmware --jk | |
926 | */ | |
927 | if (!strcmp(kctl->id.name, "PCM Playback Volume") && | |
928 | cval->min == -15616) { | |
0ba41d91 | 929 | usb_audio_info(chip, |
dcaaf9f2 TI |
930 | "set volume quirk for UDA1321/N101 chip\n"); |
931 | cval->max = -256; | |
932 | } | |
933 | break; | |
934 | ||
935 | case USB_ID(0x046d, 0x09a4): | |
936 | if (!strcmp(kctl->id.name, "Mic Capture Volume")) { | |
0ba41d91 | 937 | usb_audio_info(chip, |
dcaaf9f2 TI |
938 | "set volume quirk for QuickCam E3500\n"); |
939 | cval->min = 6080; | |
940 | cval->max = 8768; | |
941 | cval->res = 192; | |
942 | } | |
943 | break; | |
944 | ||
e805ca8b | 945 | case USB_ID(0x046d, 0x0807): /* Logitech Webcam C500 */ |
dcaaf9f2 TI |
946 | case USB_ID(0x046d, 0x0808): |
947 | case USB_ID(0x046d, 0x0809): | |
64559311 | 948 | case USB_ID(0x046d, 0x0819): /* Logitech Webcam C210 */ |
36691e1b | 949 | case USB_ID(0x046d, 0x081b): /* HD Webcam c310 */ |
55c0008b | 950 | case USB_ID(0x046d, 0x081d): /* HD Webcam c510 */ |
11e7064f | 951 | case USB_ID(0x046d, 0x0825): /* HD Webcam c270 */ |
140d37de | 952 | case USB_ID(0x046d, 0x0826): /* HD Webcam c525 */ |
1ef9f058 | 953 | case USB_ID(0x046d, 0x08ca): /* Logitech Quickcam Fusion */ |
dcaaf9f2 | 954 | case USB_ID(0x046d, 0x0991): |
82ffb6fc | 955 | case USB_ID(0x046d, 0x09a2): /* QuickCam Communicate Deluxe/S7500 */ |
dcaaf9f2 TI |
956 | /* Most audio usb devices lie about volume resolution. |
957 | * Most Logitech webcams have res = 384. | |
82ffb6fc | 958 | * Probably there is some logitech magic behind this number --fishor |
dcaaf9f2 TI |
959 | */ |
960 | if (!strcmp(kctl->id.name, "Mic Capture Volume")) { | |
0ba41d91 | 961 | usb_audio_info(chip, |
dcaaf9f2 TI |
962 | "set resolution quirk: cval->res = 384\n"); |
963 | cval->res = 384; | |
964 | } | |
965 | break; | |
dcaaf9f2 TI |
966 | } |
967 | } | |
968 | ||
1da177e4 LT |
969 | /* |
970 | * retrieve the minimum and maximum values for the specified control | |
971 | */ | |
dcaaf9f2 TI |
972 | static int get_min_max_with_quirks(struct usb_mixer_elem_info *cval, |
973 | int default_min, struct snd_kcontrol *kctl) | |
1da177e4 LT |
974 | { |
975 | /* for failsafe */ | |
976 | cval->min = default_min; | |
977 | cval->max = cval->min + 1; | |
978 | cval->res = 1; | |
c3a3e040 | 979 | cval->dBmin = cval->dBmax = 0; |
1da177e4 LT |
980 | |
981 | if (cval->val_type == USB_MIXER_BOOLEAN || | |
982 | cval->val_type == USB_MIXER_INV_BOOLEAN) { | |
983 | cval->initialized = 1; | |
984 | } else { | |
985 | int minchn = 0; | |
986 | if (cval->cmask) { | |
987 | int i; | |
988 | for (i = 0; i < MAX_CHANNELS; i++) | |
989 | if (cval->cmask & (1 << i)) { | |
990 | minchn = i + 1; | |
991 | break; | |
992 | } | |
993 | } | |
de48c7bc DM |
994 | if (get_ctl_value(cval, UAC_GET_MAX, (cval->control << 8) | minchn, &cval->max) < 0 || |
995 | get_ctl_value(cval, UAC_GET_MIN, (cval->control << 8) | minchn, &cval->min) < 0) { | |
3360b84b | 996 | usb_audio_err(cval->head.mixer->chip, |
0ba41d91 | 997 | "%d:%d: cannot get min/max values for control %d (id %d)\n", |
3360b84b TI |
998 | cval->head.id, snd_usb_ctrl_intf(cval->head.mixer->chip), |
999 | cval->control, cval->head.id); | |
1da177e4 LT |
1000 | return -EINVAL; |
1001 | } | |
6bc170e4 DM |
1002 | if (get_ctl_value(cval, UAC_GET_RES, |
1003 | (cval->control << 8) | minchn, | |
1004 | &cval->res) < 0) { | |
1da177e4 LT |
1005 | cval->res = 1; |
1006 | } else { | |
1007 | int last_valid_res = cval->res; | |
1008 | ||
1009 | while (cval->res > 1) { | |
7b1eda22 | 1010 | if (snd_usb_mixer_set_ctl_value(cval, UAC_SET_RES, |
6bc170e4 DM |
1011 | (cval->control << 8) | minchn, |
1012 | cval->res / 2) < 0) | |
1da177e4 LT |
1013 | break; |
1014 | cval->res /= 2; | |
1015 | } | |
6bc170e4 DM |
1016 | if (get_ctl_value(cval, UAC_GET_RES, |
1017 | (cval->control << 8) | minchn, &cval->res) < 0) | |
1da177e4 LT |
1018 | cval->res = last_valid_res; |
1019 | } | |
1020 | if (cval->res == 0) | |
1021 | cval->res = 1; | |
14790f1c TI |
1022 | |
1023 | /* Additional checks for the proper resolution | |
1024 | * | |
1025 | * Some devices report smaller resolutions than actually | |
1026 | * reacting. They don't return errors but simply clip | |
1027 | * to the lower aligned value. | |
1028 | */ | |
1029 | if (cval->min + cval->res < cval->max) { | |
1030 | int last_valid_res = cval->res; | |
1031 | int saved, test, check; | |
641b4879 | 1032 | get_cur_mix_raw(cval, minchn, &saved); |
14790f1c TI |
1033 | for (;;) { |
1034 | test = saved; | |
1035 | if (test < cval->max) | |
1036 | test += cval->res; | |
1037 | else | |
1038 | test -= cval->res; | |
1039 | if (test < cval->min || test > cval->max || | |
eef90451 | 1040 | snd_usb_set_cur_mix_value(cval, minchn, 0, test) || |
641b4879 | 1041 | get_cur_mix_raw(cval, minchn, &check)) { |
14790f1c TI |
1042 | cval->res = last_valid_res; |
1043 | break; | |
1044 | } | |
1045 | if (test == check) | |
1046 | break; | |
1047 | cval->res *= 2; | |
1048 | } | |
eef90451 | 1049 | snd_usb_set_cur_mix_value(cval, minchn, 0, saved); |
14790f1c TI |
1050 | } |
1051 | ||
1da177e4 LT |
1052 | cval->initialized = 1; |
1053 | } | |
c3a3e040 | 1054 | |
dcaaf9f2 TI |
1055 | if (kctl) |
1056 | volume_control_quirks(cval, kctl); | |
1057 | ||
c3a3e040 JK |
1058 | /* USB descriptions contain the dB scale in 1/256 dB unit |
1059 | * while ALSA TLV contains in 1/100 dB unit | |
1060 | */ | |
1061 | cval->dBmin = (convert_signed_value(cval, cval->min) * 100) / 256; | |
1062 | cval->dBmax = (convert_signed_value(cval, cval->max) * 100) / 256; | |
1063 | if (cval->dBmin > cval->dBmax) { | |
1064 | /* something is wrong; assume it's either from/to 0dB */ | |
1065 | if (cval->dBmin < 0) | |
1066 | cval->dBmax = 0; | |
1067 | else if (cval->dBmin > 0) | |
1068 | cval->dBmin = 0; | |
1069 | if (cval->dBmin > cval->dBmax) { | |
1070 | /* totally crap, return an error */ | |
1071 | return -EINVAL; | |
1072 | } | |
1073 | } | |
1074 | ||
1da177e4 LT |
1075 | return 0; |
1076 | } | |
1077 | ||
dcaaf9f2 | 1078 | #define get_min_max(cval, def) get_min_max_with_quirks(cval, def, NULL) |
1da177e4 LT |
1079 | |
1080 | /* get a feature/mixer unit info */ | |
6bc170e4 DM |
1081 | static int mixer_ctl_feature_info(struct snd_kcontrol *kcontrol, |
1082 | struct snd_ctl_elem_info *uinfo) | |
1da177e4 | 1083 | { |
86e07d34 | 1084 | struct usb_mixer_elem_info *cval = kcontrol->private_data; |
1da177e4 LT |
1085 | |
1086 | if (cval->val_type == USB_MIXER_BOOLEAN || | |
1087 | cval->val_type == USB_MIXER_INV_BOOLEAN) | |
1088 | uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN; | |
1089 | else | |
1090 | uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER; | |
1091 | uinfo->count = cval->channels; | |
1092 | if (cval->val_type == USB_MIXER_BOOLEAN || | |
1093 | cval->val_type == USB_MIXER_INV_BOOLEAN) { | |
1094 | uinfo->value.integer.min = 0; | |
1095 | uinfo->value.integer.max = 1; | |
1096 | } else { | |
9fcd0ab1 | 1097 | if (!cval->initialized) { |
dcaaf9f2 | 1098 | get_min_max_with_quirks(cval, 0, kcontrol); |
9fcd0ab1 TI |
1099 | if (cval->initialized && cval->dBmin >= cval->dBmax) { |
1100 | kcontrol->vd[0].access &= | |
1101 | ~(SNDRV_CTL_ELEM_ACCESS_TLV_READ | | |
1102 | SNDRV_CTL_ELEM_ACCESS_TLV_CALLBACK); | |
3360b84b | 1103 | snd_ctl_notify(cval->head.mixer->chip->card, |
9fcd0ab1 TI |
1104 | SNDRV_CTL_EVENT_MASK_INFO, |
1105 | &kcontrol->id); | |
1106 | } | |
1107 | } | |
1da177e4 | 1108 | uinfo->value.integer.min = 0; |
14790f1c TI |
1109 | uinfo->value.integer.max = |
1110 | (cval->max - cval->min + cval->res - 1) / cval->res; | |
1da177e4 LT |
1111 | } |
1112 | return 0; | |
1113 | } | |
1114 | ||
1115 | /* get the current value from feature/mixer unit */ | |
6bc170e4 DM |
1116 | static int mixer_ctl_feature_get(struct snd_kcontrol *kcontrol, |
1117 | struct snd_ctl_elem_value *ucontrol) | |
1da177e4 | 1118 | { |
86e07d34 | 1119 | struct usb_mixer_elem_info *cval = kcontrol->private_data; |
1da177e4 LT |
1120 | int c, cnt, val, err; |
1121 | ||
641b4879 | 1122 | ucontrol->value.integer.value[0] = cval->min; |
1da177e4 LT |
1123 | if (cval->cmask) { |
1124 | cnt = 0; | |
1125 | for (c = 0; c < MAX_CHANNELS; c++) { | |
641b4879 TI |
1126 | if (!(cval->cmask & (1 << c))) |
1127 | continue; | |
eef90451 | 1128 | err = snd_usb_get_cur_mix_value(cval, c + 1, cnt, &val); |
641b4879 | 1129 | if (err < 0) |
5aeee342 | 1130 | return filter_error(cval, err); |
641b4879 TI |
1131 | val = get_relative_value(cval, val); |
1132 | ucontrol->value.integer.value[cnt] = val; | |
1133 | cnt++; | |
1da177e4 | 1134 | } |
641b4879 | 1135 | return 0; |
1da177e4 LT |
1136 | } else { |
1137 | /* master channel */ | |
eef90451 | 1138 | err = snd_usb_get_cur_mix_value(cval, 0, 0, &val); |
641b4879 | 1139 | if (err < 0) |
5aeee342 | 1140 | return filter_error(cval, err); |
1da177e4 LT |
1141 | val = get_relative_value(cval, val); |
1142 | ucontrol->value.integer.value[0] = val; | |
1143 | } | |
1144 | return 0; | |
1145 | } | |
1146 | ||
1147 | /* put the current value to feature/mixer unit */ | |
6bc170e4 DM |
1148 | static int mixer_ctl_feature_put(struct snd_kcontrol *kcontrol, |
1149 | struct snd_ctl_elem_value *ucontrol) | |
1da177e4 | 1150 | { |
86e07d34 | 1151 | struct usb_mixer_elem_info *cval = kcontrol->private_data; |
1da177e4 LT |
1152 | int c, cnt, val, oval, err; |
1153 | int changed = 0; | |
1154 | ||
1155 | if (cval->cmask) { | |
1156 | cnt = 0; | |
1157 | for (c = 0; c < MAX_CHANNELS; c++) { | |
641b4879 TI |
1158 | if (!(cval->cmask & (1 << c))) |
1159 | continue; | |
eef90451 | 1160 | err = snd_usb_get_cur_mix_value(cval, c + 1, cnt, &oval); |
641b4879 | 1161 | if (err < 0) |
5aeee342 | 1162 | return filter_error(cval, err); |
641b4879 TI |
1163 | val = ucontrol->value.integer.value[cnt]; |
1164 | val = get_abs_value(cval, val); | |
1165 | if (oval != val) { | |
eef90451 | 1166 | snd_usb_set_cur_mix_value(cval, c + 1, cnt, val); |
641b4879 | 1167 | changed = 1; |
1da177e4 | 1168 | } |
641b4879 | 1169 | cnt++; |
1da177e4 LT |
1170 | } |
1171 | } else { | |
1172 | /* master channel */ | |
eef90451 | 1173 | err = snd_usb_get_cur_mix_value(cval, 0, 0, &oval); |
1da177e4 | 1174 | if (err < 0) |
5aeee342 | 1175 | return filter_error(cval, err); |
1da177e4 LT |
1176 | val = ucontrol->value.integer.value[0]; |
1177 | val = get_abs_value(cval, val); | |
1178 | if (val != oval) { | |
eef90451 | 1179 | snd_usb_set_cur_mix_value(cval, 0, 0, val); |
1da177e4 LT |
1180 | changed = 1; |
1181 | } | |
1182 | } | |
1183 | return changed; | |
1184 | } | |
1185 | ||
86e07d34 | 1186 | static struct snd_kcontrol_new usb_feature_unit_ctl = { |
1da177e4 LT |
1187 | .iface = SNDRV_CTL_ELEM_IFACE_MIXER, |
1188 | .name = "", /* will be filled later manually */ | |
1189 | .info = mixer_ctl_feature_info, | |
1190 | .get = mixer_ctl_feature_get, | |
1191 | .put = mixer_ctl_feature_put, | |
1192 | }; | |
1193 | ||
23caaf19 | 1194 | /* the read-only variant */ |
8fdaebbb | 1195 | static const struct snd_kcontrol_new usb_feature_unit_ctl_ro = { |
23caaf19 DM |
1196 | .iface = SNDRV_CTL_ELEM_IFACE_MIXER, |
1197 | .name = "", /* will be filled later manually */ | |
1198 | .info = mixer_ctl_feature_info, | |
1199 | .get = mixer_ctl_feature_get, | |
1200 | .put = NULL, | |
1201 | }; | |
1202 | ||
6bc170e4 DM |
1203 | /* |
1204 | * This symbol is exported in order to allow the mixer quirks to | |
1205 | * hook up to the standard feature unit control mechanism | |
1206 | */ | |
9e38658f | 1207 | struct snd_kcontrol_new *snd_usb_feature_unit_ctl = &usb_feature_unit_ctl; |
1da177e4 LT |
1208 | |
1209 | /* | |
1210 | * build a feature control | |
1211 | */ | |
08d1e635 TI |
1212 | static size_t append_ctl_name(struct snd_kcontrol *kctl, const char *str) |
1213 | { | |
1214 | return strlcat(kctl->id.name, str, sizeof(kctl->id.name)); | |
1215 | } | |
1216 | ||
6bc170e4 DM |
1217 | /* |
1218 | * A lot of headsets/headphones have a "Speaker" mixer. Make sure we | |
1219 | * rename it to "Headphone". We determine if something is a headphone | |
1220 | * similar to how udev determines form factor. | |
1221 | */ | |
9b4ef977 DH |
1222 | static void check_no_speaker_on_headset(struct snd_kcontrol *kctl, |
1223 | struct snd_card *card) | |
1224 | { | |
1225 | const char *names_to_check[] = { | |
1226 | "Headset", "headset", "Headphone", "headphone", NULL}; | |
1227 | const char **s; | |
e0f17c75 | 1228 | bool found = false; |
9b4ef977 DH |
1229 | |
1230 | if (strcmp("Speaker", kctl->id.name)) | |
1231 | return; | |
1232 | ||
1233 | for (s = names_to_check; *s; s++) | |
1234 | if (strstr(card->shortname, *s)) { | |
e0f17c75 | 1235 | found = true; |
9b4ef977 DH |
1236 | break; |
1237 | } | |
1238 | ||
1239 | if (!found) | |
1240 | return; | |
1241 | ||
1242 | strlcpy(kctl->id.name, "Headphone", sizeof(kctl->id.name)); | |
1243 | } | |
1244 | ||
99fc8645 | 1245 | static void build_feature_ctl(struct mixer_build *state, void *raw_desc, |
1da177e4 | 1246 | unsigned int ctl_mask, int control, |
23caaf19 | 1247 | struct usb_audio_term *iterm, int unitid, |
a6a33259 | 1248 | int readonly_mask) |
1da177e4 | 1249 | { |
99fc8645 | 1250 | struct uac_feature_unit_descriptor *desc = raw_desc; |
bc18e31c | 1251 | struct usb_feature_control_info *ctl_info; |
1da177e4 LT |
1252 | unsigned int len = 0; |
1253 | int mapped_name = 0; | |
99fc8645 | 1254 | int nameid = uac_feature_unit_iFeature(desc); |
86e07d34 TI |
1255 | struct snd_kcontrol *kctl; |
1256 | struct usb_mixer_elem_info *cval; | |
c3a3e040 | 1257 | const struct usbmix_name_map *map; |
80acefff | 1258 | unsigned int range; |
1da177e4 LT |
1259 | |
1260 | control++; /* change from zero-based to 1-based value */ | |
1261 | ||
65f25da4 | 1262 | if (control == UAC_FU_GRAPHIC_EQUALIZER) { |
1da177e4 LT |
1263 | /* FIXME: not supported yet */ |
1264 | return; | |
1265 | } | |
1266 | ||
c3a3e040 JK |
1267 | map = find_map(state, unitid, control); |
1268 | if (check_ignored_ctl(map)) | |
1da177e4 LT |
1269 | return; |
1270 | ||
561b220a | 1271 | cval = kzalloc(sizeof(*cval), GFP_KERNEL); |
a860d95f | 1272 | if (!cval) |
1da177e4 | 1273 | return; |
3360b84b | 1274 | snd_usb_mixer_elem_init_std(&cval->head, state->mixer, unitid); |
1da177e4 LT |
1275 | cval->control = control; |
1276 | cval->cmask = ctl_mask; | |
bc18e31c JS |
1277 | ctl_info = &audio_feature_info[control-1]; |
1278 | if (state->mixer->protocol == UAC_VERSION_1) | |
1279 | cval->val_type = ctl_info->type; | |
1280 | else /* UAC_VERSION_2 */ | |
1281 | cval->val_type = ctl_info->type_uac2 >= 0 ? | |
1282 | ctl_info->type_uac2 : ctl_info->type; | |
1283 | ||
a6a33259 | 1284 | if (ctl_mask == 0) { |
1da177e4 | 1285 | cval->channels = 1; /* master channel */ |
a6a33259 DM |
1286 | cval->master_readonly = readonly_mask; |
1287 | } else { | |
1da177e4 LT |
1288 | int i, c = 0; |
1289 | for (i = 0; i < 16; i++) | |
1290 | if (ctl_mask & (1 << i)) | |
1291 | c++; | |
1292 | cval->channels = c; | |
a6a33259 | 1293 | cval->ch_readonly = readonly_mask; |
1da177e4 LT |
1294 | } |
1295 | ||
6bc170e4 DM |
1296 | /* |
1297 | * If all channels in the mask are marked read-only, make the control | |
eef90451 | 1298 | * read-only. snd_usb_set_cur_mix_value() will check the mask again and won't |
6bc170e4 DM |
1299 | * issue write commands to read-only channels. |
1300 | */ | |
a6a33259 | 1301 | if (cval->channels == readonly_mask) |
23caaf19 DM |
1302 | kctl = snd_ctl_new1(&usb_feature_unit_ctl_ro, cval); |
1303 | else | |
1304 | kctl = snd_ctl_new1(&usb_feature_unit_ctl, cval); | |
1305 | ||
6bc170e4 | 1306 | if (!kctl) { |
0ba41d91 | 1307 | usb_audio_err(state->chip, "cannot malloc kcontrol\n"); |
1da177e4 LT |
1308 | kfree(cval); |
1309 | return; | |
1310 | } | |
eef90451 | 1311 | kctl->private_free = snd_usb_mixer_elem_free; |
1da177e4 | 1312 | |
c3a3e040 | 1313 | len = check_mapped_name(map, kctl->id.name, sizeof(kctl->id.name)); |
1da177e4 | 1314 | mapped_name = len != 0; |
6bc170e4 | 1315 | if (!len && nameid) |
c3a3e040 JK |
1316 | len = snd_usb_copy_string_desc(state, nameid, |
1317 | kctl->id.name, sizeof(kctl->id.name)); | |
1da177e4 LT |
1318 | |
1319 | switch (control) { | |
65f25da4 DM |
1320 | case UAC_FU_MUTE: |
1321 | case UAC_FU_VOLUME: | |
6bc170e4 DM |
1322 | /* |
1323 | * determine the control name. the rule is: | |
1da177e4 LT |
1324 | * - if a name id is given in descriptor, use it. |
1325 | * - if the connected input can be determined, then use the name | |
1326 | * of terminal type. | |
1327 | * - if the connected output can be determined, use it. | |
1328 | * - otherwise, anonymous name. | |
1329 | */ | |
6bc170e4 DM |
1330 | if (!len) { |
1331 | len = get_term_name(state, iterm, kctl->id.name, | |
1332 | sizeof(kctl->id.name), 1); | |
1333 | if (!len) | |
1334 | len = get_term_name(state, &state->oterm, | |
1335 | kctl->id.name, | |
1336 | sizeof(kctl->id.name), 1); | |
1337 | if (!len) | |
49fd46d2 DM |
1338 | snprintf(kctl->id.name, sizeof(kctl->id.name), |
1339 | "Feature %d", unitid); | |
1da177e4 | 1340 | } |
9b4ef977 DH |
1341 | |
1342 | if (!mapped_name) | |
1343 | check_no_speaker_on_headset(kctl, state->mixer->chip->card); | |
1344 | ||
6bc170e4 DM |
1345 | /* |
1346 | * determine the stream direction: | |
1da177e4 LT |
1347 | * if the connected output is USB stream, then it's likely a |
1348 | * capture stream. otherwise it should be playback (hopefully :) | |
1349 | */ | |
6bc170e4 DM |
1350 | if (!mapped_name && !(state->oterm.type >> 16)) { |
1351 | if ((state->oterm.type & 0xff00) == 0x0100) | |
49fd46d2 | 1352 | append_ctl_name(kctl, " Capture"); |
6bc170e4 | 1353 | else |
49fd46d2 | 1354 | append_ctl_name(kctl, " Playback"); |
1da177e4 | 1355 | } |
65f25da4 | 1356 | append_ctl_name(kctl, control == UAC_FU_MUTE ? |
08d1e635 | 1357 | " Switch" : " Volume"); |
1da177e4 | 1358 | break; |
1da177e4 | 1359 | default: |
6bc170e4 | 1360 | if (!len) |
1da177e4 LT |
1361 | strlcpy(kctl->id.name, audio_feature_info[control-1].name, |
1362 | sizeof(kctl->id.name)); | |
1363 | break; | |
1364 | } | |
1365 | ||
e182534d TI |
1366 | /* get min/max values */ |
1367 | get_min_max_with_quirks(cval, 0, kctl); | |
1368 | ||
1369 | if (control == UAC_FU_VOLUME) { | |
1370 | check_mapped_dB(map, cval); | |
1371 | if (cval->dBmin < cval->dBmax || !cval->initialized) { | |
1372 | kctl->tlv.c = snd_usb_mixer_vol_tlv; | |
1373 | kctl->vd[0].access |= | |
1374 | SNDRV_CTL_ELEM_ACCESS_TLV_READ | | |
1375 | SNDRV_CTL_ELEM_ACCESS_TLV_CALLBACK; | |
1376 | } | |
1377 | } | |
1378 | ||
42e3121d AH |
1379 | snd_usb_mixer_fu_apply_quirk(state->mixer, cval, unitid, kctl); |
1380 | ||
80acefff | 1381 | range = (cval->max - cval->min) / cval->res; |
6bc170e4 DM |
1382 | /* |
1383 | * Are there devices with volume range more than 255? I use a bit more | |
80acefff AF |
1384 | * to be sure. 384 is a resolution magic number found on Logitech |
1385 | * devices. It will definitively catch all buggy Logitech devices. | |
1386 | */ | |
1387 | if (range > 384) { | |
6bc170e4 | 1388 | usb_audio_warn(state->chip, |
82c1cf0a | 1389 | "Warning! Unlikely big volume range (=%u), cval->res is probably wrong.", |
6bc170e4 | 1390 | range); |
82c1cf0a MM |
1391 | usb_audio_warn(state->chip, |
1392 | "[%d] FU [%s] ch = %d, val = %d/%d/%d", | |
3360b84b | 1393 | cval->head.id, kctl->id.name, cval->channels, |
6bc170e4 | 1394 | cval->min, cval->max, cval->res); |
80acefff AF |
1395 | } |
1396 | ||
0ba41d91 | 1397 | usb_audio_dbg(state->chip, "[%d] FU [%s] ch = %d, val = %d/%d/%d\n", |
3360b84b | 1398 | cval->head.id, kctl->id.name, cval->channels, |
6bc170e4 | 1399 | cval->min, cval->max, cval->res); |
3360b84b | 1400 | snd_usb_mixer_add_control(&cval->head, kctl); |
1da177e4 LT |
1401 | } |
1402 | ||
cddaafb9 DM |
1403 | static int parse_clock_source_unit(struct mixer_build *state, int unitid, |
1404 | void *_ftr) | |
1405 | { | |
1406 | struct uac_clock_source_descriptor *hdr = _ftr; | |
1407 | struct usb_mixer_elem_info *cval; | |
1408 | struct snd_kcontrol *kctl; | |
1409 | char name[SNDRV_CTL_ELEM_ID_NAME_MAXLEN]; | |
1410 | int ret; | |
1411 | ||
1412 | if (state->mixer->protocol != UAC_VERSION_2) | |
1413 | return -EINVAL; | |
1414 | ||
1415 | if (hdr->bLength != sizeof(*hdr)) { | |
1416 | usb_audio_dbg(state->chip, | |
1417 | "Bogus clock source descriptor length of %d, ignoring.\n", | |
1418 | hdr->bLength); | |
1419 | return 0; | |
1420 | } | |
1421 | ||
1422 | /* | |
1423 | * The only property of this unit we are interested in is the | |
1424 | * clock source validity. If that isn't readable, just bail out. | |
1425 | */ | |
1426 | if (!uac2_control_is_readable(hdr->bmControls, | |
1427 | ilog2(UAC2_CS_CONTROL_CLOCK_VALID))) | |
1428 | return 0; | |
1429 | ||
1430 | cval = kzalloc(sizeof(*cval), GFP_KERNEL); | |
1431 | if (!cval) | |
1432 | return -ENOMEM; | |
1433 | ||
1434 | snd_usb_mixer_elem_init_std(&cval->head, state->mixer, hdr->bClockID); | |
1435 | ||
1436 | cval->min = 0; | |
1437 | cval->max = 1; | |
1438 | cval->channels = 1; | |
1439 | cval->val_type = USB_MIXER_BOOLEAN; | |
1440 | cval->control = UAC2_CS_CONTROL_CLOCK_VALID; | |
1441 | ||
1442 | if (uac2_control_is_writeable(hdr->bmControls, | |
1443 | ilog2(UAC2_CS_CONTROL_CLOCK_VALID))) | |
1444 | kctl = snd_ctl_new1(&usb_feature_unit_ctl, cval); | |
1445 | else { | |
1446 | cval->master_readonly = 1; | |
1447 | kctl = snd_ctl_new1(&usb_feature_unit_ctl_ro, cval); | |
1448 | } | |
1449 | ||
1450 | if (!kctl) { | |
1451 | kfree(cval); | |
1452 | return -ENOMEM; | |
1453 | } | |
1454 | ||
1455 | kctl->private_free = snd_usb_mixer_elem_free; | |
1456 | ret = snd_usb_copy_string_desc(state, hdr->iClockSource, | |
1457 | name, sizeof(name)); | |
1458 | if (ret > 0) | |
1459 | snprintf(kctl->id.name, sizeof(kctl->id.name), | |
1460 | "%s Validity", name); | |
1461 | else | |
1462 | snprintf(kctl->id.name, sizeof(kctl->id.name), | |
1463 | "Clock Source %d Validity", hdr->bClockID); | |
1464 | ||
1465 | return snd_usb_mixer_add_control(&cval->head, kctl); | |
1466 | } | |
1467 | ||
1da177e4 LT |
1468 | /* |
1469 | * parse a feature unit | |
1470 | * | |
25985edc | 1471 | * most of controls are defined here. |
1da177e4 | 1472 | */ |
6bc170e4 DM |
1473 | static int parse_audio_feature_unit(struct mixer_build *state, int unitid, |
1474 | void *_ftr) | |
1da177e4 LT |
1475 | { |
1476 | int channels, i, j; | |
86e07d34 | 1477 | struct usb_audio_term iterm; |
1da177e4 LT |
1478 | unsigned int master_bits, first_ch_bits; |
1479 | int err, csize; | |
23caaf19 DM |
1480 | struct uac_feature_unit_descriptor *hdr = _ftr; |
1481 | __u8 *bmaControls; | |
1482 | ||
1483 | if (state->mixer->protocol == UAC_VERSION_1) { | |
d937cd67 TI |
1484 | if (hdr->bLength < 7) { |
1485 | usb_audio_err(state->chip, | |
1486 | "unit %u: invalid UAC_FEATURE_UNIT descriptor\n", | |
1487 | unitid); | |
1488 | return -EINVAL; | |
1489 | } | |
23caaf19 | 1490 | csize = hdr->bControlSize; |
3c02a6d9 | 1491 | if (!csize) { |
0ba41d91 | 1492 | usb_audio_dbg(state->chip, |
3c02a6d9 | 1493 | "unit %u: invalid bControlSize == 0\n", |
0ba41d91 | 1494 | unitid); |
60c961a9 NK |
1495 | return -EINVAL; |
1496 | } | |
23caaf19 DM |
1497 | channels = (hdr->bLength - 7) / csize - 1; |
1498 | bmaControls = hdr->bmaControls; | |
d56268fb | 1499 | if (hdr->bLength < 7 + csize) { |
0ba41d91 TI |
1500 | usb_audio_err(state->chip, |
1501 | "unit %u: invalid UAC_FEATURE_UNIT descriptor\n", | |
1502 | unitid); | |
d56268fb CL |
1503 | return -EINVAL; |
1504 | } | |
23caaf19 DM |
1505 | } else { |
1506 | struct uac2_feature_unit_descriptor *ftr = _ftr; | |
d937cd67 TI |
1507 | if (hdr->bLength < 6) { |
1508 | usb_audio_err(state->chip, | |
1509 | "unit %u: invalid UAC_FEATURE_UNIT descriptor\n", | |
1510 | unitid); | |
1511 | return -EINVAL; | |
1512 | } | |
23caaf19 | 1513 | csize = 4; |
e8d0fee7 | 1514 | channels = (hdr->bLength - 6) / 4 - 1; |
23caaf19 | 1515 | bmaControls = ftr->bmaControls; |
d56268fb | 1516 | if (hdr->bLength < 6 + csize) { |
0ba41d91 TI |
1517 | usb_audio_err(state->chip, |
1518 | "unit %u: invalid UAC_FEATURE_UNIT descriptor\n", | |
1519 | unitid); | |
d56268fb CL |
1520 | return -EINVAL; |
1521 | } | |
1da177e4 LT |
1522 | } |
1523 | ||
1524 | /* parse the source unit */ | |
23caaf19 | 1525 | if ((err = parse_audio_unit(state, hdr->bSourceID)) < 0) |
1da177e4 LT |
1526 | return err; |
1527 | ||
1528 | /* determine the input source type and name */ | |
4d7b86c9 DM |
1529 | err = check_input_term(state, hdr->bSourceID, &iterm); |
1530 | if (err < 0) | |
1531 | return err; | |
1da177e4 | 1532 | |
23caaf19 | 1533 | master_bits = snd_usb_combine_bytes(bmaControls, csize); |
0c3cee57 JK |
1534 | /* master configuration quirks */ |
1535 | switch (state->chip->usb_id) { | |
1536 | case USB_ID(0x08bb, 0x2702): | |
0ba41d91 TI |
1537 | usb_audio_info(state->chip, |
1538 | "usbmixer: master volume quirk for PCM2702 chip\n"); | |
0c3cee57 | 1539 | /* disable non-functional volume control */ |
65f25da4 | 1540 | master_bits &= ~UAC_CONTROL_BIT(UAC_FU_VOLUME); |
0c3cee57 | 1541 | break; |
c1051439 | 1542 | case USB_ID(0x1130, 0xf211): |
0ba41d91 TI |
1543 | usb_audio_info(state->chip, |
1544 | "usbmixer: volume control quirk for Tenx TP6911 Audio Headset\n"); | |
c1051439 DH |
1545 | /* disable non-functional volume control */ |
1546 | channels = 0; | |
1547 | break; | |
1548 | ||
0c3cee57 | 1549 | } |
1da177e4 | 1550 | if (channels > 0) |
23caaf19 | 1551 | first_ch_bits = snd_usb_combine_bytes(bmaControls + csize, csize); |
1da177e4 LT |
1552 | else |
1553 | first_ch_bits = 0; | |
23caaf19 DM |
1554 | |
1555 | if (state->mixer->protocol == UAC_VERSION_1) { | |
1556 | /* check all control types */ | |
1557 | for (i = 0; i < 10; i++) { | |
1558 | unsigned int ch_bits = 0; | |
1559 | for (j = 0; j < channels; j++) { | |
6bc170e4 DM |
1560 | unsigned int mask; |
1561 | ||
1562 | mask = snd_usb_combine_bytes(bmaControls + | |
1563 | csize * (j+1), csize); | |
23caaf19 DM |
1564 | if (mask & (1 << i)) |
1565 | ch_bits |= (1 << j); | |
1566 | } | |
1567 | /* audio class v1 controls are never read-only */ | |
6bc170e4 DM |
1568 | |
1569 | /* | |
1570 | * The first channel must be set | |
1571 | * (for ease of programming). | |
1572 | */ | |
1573 | if (ch_bits & 1) | |
1574 | build_feature_ctl(state, _ftr, ch_bits, i, | |
1575 | &iterm, unitid, 0); | |
23caaf19 | 1576 | if (master_bits & (1 << i)) |
6bc170e4 DM |
1577 | build_feature_ctl(state, _ftr, 0, i, &iterm, |
1578 | unitid, 0); | |
23caaf19 DM |
1579 | } |
1580 | } else { /* UAC_VERSION_2 */ | |
d09c06c6 | 1581 | for (i = 0; i < ARRAY_SIZE(audio_feature_info); i++) { |
23caaf19 DM |
1582 | unsigned int ch_bits = 0; |
1583 | unsigned int ch_read_only = 0; | |
1584 | ||
1585 | for (j = 0; j < channels; j++) { | |
6bc170e4 DM |
1586 | unsigned int mask; |
1587 | ||
1588 | mask = snd_usb_combine_bytes(bmaControls + | |
1589 | csize * (j+1), csize); | |
dcbe7bcf | 1590 | if (uac2_control_is_readable(mask, i)) { |
23caaf19 | 1591 | ch_bits |= (1 << j); |
dcbe7bcf | 1592 | if (!uac2_control_is_writeable(mask, i)) |
23caaf19 DM |
1593 | ch_read_only |= (1 << j); |
1594 | } | |
1595 | } | |
1596 | ||
6bc170e4 DM |
1597 | /* |
1598 | * NOTE: build_feature_ctl() will mark the control | |
1599 | * read-only if all channels are marked read-only in | |
1600 | * the descriptors. Otherwise, the control will be | |
1601 | * reported as writeable, but the driver will not | |
1602 | * actually issue a write command for read-only | |
1603 | * channels. | |
1604 | */ | |
1605 | ||
1606 | /* | |
1607 | * The first channel must be set | |
1608 | * (for ease of programming). | |
1609 | */ | |
1610 | if (ch_bits & 1) | |
1611 | build_feature_ctl(state, _ftr, ch_bits, i, | |
1612 | &iterm, unitid, ch_read_only); | |
dcbe7bcf | 1613 | if (uac2_control_is_readable(master_bits, i)) |
23caaf19 | 1614 | build_feature_ctl(state, _ftr, 0, i, &iterm, unitid, |
dcbe7bcf | 1615 | !uac2_control_is_writeable(master_bits, i)); |
1da177e4 | 1616 | } |
1da177e4 LT |
1617 | } |
1618 | ||
1619 | return 0; | |
1620 | } | |
1621 | ||
1da177e4 LT |
1622 | /* |
1623 | * Mixer Unit | |
1624 | */ | |
1625 | ||
1626 | /* | |
1627 | * build a mixer unit control | |
1628 | * | |
1629 | * the callbacks are identical with feature unit. | |
1630 | * input channel number (zero based) is given in control field instead. | |
1631 | */ | |
99fc8645 DM |
1632 | static void build_mixer_unit_ctl(struct mixer_build *state, |
1633 | struct uac_mixer_unit_descriptor *desc, | |
1da177e4 | 1634 | int in_pin, int in_ch, int unitid, |
86e07d34 | 1635 | struct usb_audio_term *iterm) |
1da177e4 | 1636 | { |
86e07d34 | 1637 | struct usb_mixer_elem_info *cval; |
99fc8645 | 1638 | unsigned int num_outs = uac_mixer_unit_bNrChannels(desc); |
1da177e4 | 1639 | unsigned int i, len; |
86e07d34 | 1640 | struct snd_kcontrol *kctl; |
c3a3e040 | 1641 | const struct usbmix_name_map *map; |
1da177e4 | 1642 | |
c3a3e040 JK |
1643 | map = find_map(state, unitid, 0); |
1644 | if (check_ignored_ctl(map)) | |
1da177e4 LT |
1645 | return; |
1646 | ||
561b220a | 1647 | cval = kzalloc(sizeof(*cval), GFP_KERNEL); |
6bc170e4 | 1648 | if (!cval) |
1da177e4 LT |
1649 | return; |
1650 | ||
3360b84b | 1651 | snd_usb_mixer_elem_init_std(&cval->head, state->mixer, unitid); |
1da177e4 LT |
1652 | cval->control = in_ch + 1; /* based on 1 */ |
1653 | cval->val_type = USB_MIXER_S16; | |
1654 | for (i = 0; i < num_outs; i++) { | |
6bc170e4 DM |
1655 | __u8 *c = uac_mixer_unit_bmControls(desc, state->mixer->protocol); |
1656 | ||
1657 | if (check_matrix_bitmap(c, in_ch, i, num_outs)) { | |
1da177e4 LT |
1658 | cval->cmask |= (1 << i); |
1659 | cval->channels++; | |
1660 | } | |
1661 | } | |
1662 | ||
1663 | /* get min/max values */ | |
1664 | get_min_max(cval, 0); | |
1665 | ||
1666 | kctl = snd_ctl_new1(&usb_feature_unit_ctl, cval); | |
6bc170e4 | 1667 | if (!kctl) { |
0ba41d91 | 1668 | usb_audio_err(state->chip, "cannot malloc kcontrol\n"); |
1da177e4 LT |
1669 | kfree(cval); |
1670 | return; | |
1671 | } | |
eef90451 | 1672 | kctl->private_free = snd_usb_mixer_elem_free; |
1da177e4 | 1673 | |
c3a3e040 | 1674 | len = check_mapped_name(map, kctl->id.name, sizeof(kctl->id.name)); |
6bc170e4 DM |
1675 | if (!len) |
1676 | len = get_term_name(state, iterm, kctl->id.name, | |
1677 | sizeof(kctl->id.name), 0); | |
1678 | if (!len) | |
1da177e4 | 1679 | len = sprintf(kctl->id.name, "Mixer Source %d", in_ch + 1); |
08d1e635 | 1680 | append_ctl_name(kctl, " Volume"); |
1da177e4 | 1681 | |
0ba41d91 | 1682 | usb_audio_dbg(state->chip, "[%d] MU [%s] ch = %d, val = %d/%d\n", |
3360b84b TI |
1683 | cval->head.id, kctl->id.name, cval->channels, cval->min, cval->max); |
1684 | snd_usb_mixer_add_control(&cval->head, kctl); | |
1da177e4 LT |
1685 | } |
1686 | ||
1da177e4 LT |
1687 | /* |
1688 | * parse a mixer unit | |
1689 | */ | |
6bc170e4 DM |
1690 | static int parse_audio_mixer_unit(struct mixer_build *state, int unitid, |
1691 | void *raw_desc) | |
1da177e4 | 1692 | { |
99fc8645 | 1693 | struct uac_mixer_unit_descriptor *desc = raw_desc; |
86e07d34 | 1694 | struct usb_audio_term iterm; |
1da177e4 LT |
1695 | int input_pins, num_ins, num_outs; |
1696 | int pin, ich, err; | |
1697 | ||
6bc170e4 DM |
1698 | if (desc->bLength < 11 || !(input_pins = desc->bNrInPins) || |
1699 | !(num_outs = uac_mixer_unit_bNrChannels(desc))) { | |
1700 | usb_audio_err(state->chip, | |
1701 | "invalid MIXER UNIT descriptor %d\n", | |
1702 | unitid); | |
1da177e4 LT |
1703 | return -EINVAL; |
1704 | } | |
1da177e4 LT |
1705 | |
1706 | num_ins = 0; | |
1707 | ich = 0; | |
1708 | for (pin = 0; pin < input_pins; pin++) { | |
99fc8645 | 1709 | err = parse_audio_unit(state, desc->baSourceID[pin]); |
1da177e4 | 1710 | if (err < 0) |
284a8dd6 | 1711 | continue; |
ea114fc2 CL |
1712 | /* no bmControls field (e.g. Maya44) -> ignore */ |
1713 | if (desc->bLength <= 10 + input_pins) | |
1714 | continue; | |
99fc8645 | 1715 | err = check_input_term(state, desc->baSourceID[pin], &iterm); |
1da177e4 LT |
1716 | if (err < 0) |
1717 | return err; | |
1718 | num_ins += iterm.channels; | |
6bc170e4 | 1719 | for (; ich < num_ins; ich++) { |
1da177e4 LT |
1720 | int och, ich_has_controls = 0; |
1721 | ||
6bc170e4 DM |
1722 | for (och = 0; och < num_outs; och++) { |
1723 | __u8 *c = uac_mixer_unit_bmControls(desc, | |
1724 | state->mixer->protocol); | |
1725 | ||
1726 | if (check_matrix_bitmap(c, ich, och, num_outs)) { | |
1da177e4 LT |
1727 | ich_has_controls = 1; |
1728 | break; | |
1729 | } | |
1730 | } | |
1731 | if (ich_has_controls) | |
1732 | build_mixer_unit_ctl(state, desc, pin, ich, | |
1733 | unitid, &iterm); | |
1734 | } | |
1735 | } | |
1736 | return 0; | |
1737 | } | |
1738 | ||
1da177e4 LT |
1739 | /* |
1740 | * Processing Unit / Extension Unit | |
1741 | */ | |
1742 | ||
1743 | /* get callback for processing/extension unit */ | |
6bc170e4 DM |
1744 | static int mixer_ctl_procunit_get(struct snd_kcontrol *kcontrol, |
1745 | struct snd_ctl_elem_value *ucontrol) | |
1da177e4 | 1746 | { |
86e07d34 | 1747 | struct usb_mixer_elem_info *cval = kcontrol->private_data; |
1da177e4 LT |
1748 | int err, val; |
1749 | ||
1750 | err = get_cur_ctl_value(cval, cval->control << 8, &val); | |
5aeee342 | 1751 | if (err < 0) { |
1da177e4 | 1752 | ucontrol->value.integer.value[0] = cval->min; |
5aeee342 | 1753 | return filter_error(cval, err); |
1da177e4 | 1754 | } |
1da177e4 LT |
1755 | val = get_relative_value(cval, val); |
1756 | ucontrol->value.integer.value[0] = val; | |
1757 | return 0; | |
1758 | } | |
1759 | ||
1760 | /* put callback for processing/extension unit */ | |
6bc170e4 DM |
1761 | static int mixer_ctl_procunit_put(struct snd_kcontrol *kcontrol, |
1762 | struct snd_ctl_elem_value *ucontrol) | |
1da177e4 | 1763 | { |
86e07d34 | 1764 | struct usb_mixer_elem_info *cval = kcontrol->private_data; |
1da177e4 LT |
1765 | int val, oval, err; |
1766 | ||
1767 | err = get_cur_ctl_value(cval, cval->control << 8, &oval); | |
5aeee342 TI |
1768 | if (err < 0) |
1769 | return filter_error(cval, err); | |
1da177e4 LT |
1770 | val = ucontrol->value.integer.value[0]; |
1771 | val = get_abs_value(cval, val); | |
1772 | if (val != oval) { | |
1773 | set_cur_ctl_value(cval, cval->control << 8, val); | |
1774 | return 1; | |
1775 | } | |
1776 | return 0; | |
1777 | } | |
1778 | ||
1779 | /* alsa control interface for processing/extension unit */ | |
8fdaebbb | 1780 | static const struct snd_kcontrol_new mixer_procunit_ctl = { |
1da177e4 LT |
1781 | .iface = SNDRV_CTL_ELEM_IFACE_MIXER, |
1782 | .name = "", /* will be filled later */ | |
1783 | .info = mixer_ctl_feature_info, | |
1784 | .get = mixer_ctl_procunit_get, | |
1785 | .put = mixer_ctl_procunit_put, | |
1786 | }; | |
1787 | ||
1da177e4 LT |
1788 | /* |
1789 | * predefined data for processing units | |
1790 | */ | |
1791 | struct procunit_value_info { | |
1792 | int control; | |
1793 | char *suffix; | |
1794 | int val_type; | |
1795 | int min_value; | |
1796 | }; | |
1797 | ||
1798 | struct procunit_info { | |
1799 | int type; | |
1800 | char *name; | |
1801 | struct procunit_value_info *values; | |
1802 | }; | |
1803 | ||
1804 | static struct procunit_value_info updown_proc_info[] = { | |
65f25da4 DM |
1805 | { UAC_UD_ENABLE, "Switch", USB_MIXER_BOOLEAN }, |
1806 | { UAC_UD_MODE_SELECT, "Mode Select", USB_MIXER_U8, 1 }, | |
1da177e4 LT |
1807 | { 0 } |
1808 | }; | |
1809 | static struct procunit_value_info prologic_proc_info[] = { | |
65f25da4 DM |
1810 | { UAC_DP_ENABLE, "Switch", USB_MIXER_BOOLEAN }, |
1811 | { UAC_DP_MODE_SELECT, "Mode Select", USB_MIXER_U8, 1 }, | |
1da177e4 LT |
1812 | { 0 } |
1813 | }; | |
1814 | static struct procunit_value_info threed_enh_proc_info[] = { | |
65f25da4 DM |
1815 | { UAC_3D_ENABLE, "Switch", USB_MIXER_BOOLEAN }, |
1816 | { UAC_3D_SPACE, "Spaciousness", USB_MIXER_U8 }, | |
1da177e4 LT |
1817 | { 0 } |
1818 | }; | |
1819 | static struct procunit_value_info reverb_proc_info[] = { | |
65f25da4 DM |
1820 | { UAC_REVERB_ENABLE, "Switch", USB_MIXER_BOOLEAN }, |
1821 | { UAC_REVERB_LEVEL, "Level", USB_MIXER_U8 }, | |
1822 | { UAC_REVERB_TIME, "Time", USB_MIXER_U16 }, | |
1823 | { UAC_REVERB_FEEDBACK, "Feedback", USB_MIXER_U8 }, | |
1da177e4 LT |
1824 | { 0 } |
1825 | }; | |
1826 | static struct procunit_value_info chorus_proc_info[] = { | |
65f25da4 DM |
1827 | { UAC_CHORUS_ENABLE, "Switch", USB_MIXER_BOOLEAN }, |
1828 | { UAC_CHORUS_LEVEL, "Level", USB_MIXER_U8 }, | |
1829 | { UAC_CHORUS_RATE, "Rate", USB_MIXER_U16 }, | |
1830 | { UAC_CHORUS_DEPTH, "Depth", USB_MIXER_U16 }, | |
1da177e4 LT |
1831 | { 0 } |
1832 | }; | |
1833 | static struct procunit_value_info dcr_proc_info[] = { | |
65f25da4 DM |
1834 | { UAC_DCR_ENABLE, "Switch", USB_MIXER_BOOLEAN }, |
1835 | { UAC_DCR_RATE, "Ratio", USB_MIXER_U16 }, | |
1836 | { UAC_DCR_MAXAMPL, "Max Amp", USB_MIXER_S16 }, | |
1837 | { UAC_DCR_THRESHOLD, "Threshold", USB_MIXER_S16 }, | |
1838 | { UAC_DCR_ATTACK_TIME, "Attack Time", USB_MIXER_U16 }, | |
1839 | { UAC_DCR_RELEASE_TIME, "Release Time", USB_MIXER_U16 }, | |
1da177e4 LT |
1840 | { 0 } |
1841 | }; | |
1842 | ||
1843 | static struct procunit_info procunits[] = { | |
65f25da4 DM |
1844 | { UAC_PROCESS_UP_DOWNMIX, "Up Down", updown_proc_info }, |
1845 | { UAC_PROCESS_DOLBY_PROLOGIC, "Dolby Prologic", prologic_proc_info }, | |
1846 | { UAC_PROCESS_STEREO_EXTENDER, "3D Stereo Extender", threed_enh_proc_info }, | |
1847 | { UAC_PROCESS_REVERB, "Reverb", reverb_proc_info }, | |
1848 | { UAC_PROCESS_CHORUS, "Chorus", chorus_proc_info }, | |
1849 | { UAC_PROCESS_DYN_RANGE_COMP, "DCR", dcr_proc_info }, | |
1da177e4 LT |
1850 | { 0 }, |
1851 | }; | |
7d2b451e SK |
1852 | /* |
1853 | * predefined data for extension units | |
1854 | */ | |
1855 | static struct procunit_value_info clock_rate_xu_info[] = { | |
e213e9cf DM |
1856 | { USB_XU_CLOCK_RATE_SELECTOR, "Selector", USB_MIXER_U8, 0 }, |
1857 | { 0 } | |
7d2b451e SK |
1858 | }; |
1859 | static struct procunit_value_info clock_source_xu_info[] = { | |
1860 | { USB_XU_CLOCK_SOURCE_SELECTOR, "External", USB_MIXER_BOOLEAN }, | |
1861 | { 0 } | |
1862 | }; | |
1863 | static struct procunit_value_info spdif_format_xu_info[] = { | |
1864 | { USB_XU_DIGITAL_FORMAT_SELECTOR, "SPDIF/AC3", USB_MIXER_BOOLEAN }, | |
1865 | { 0 } | |
1866 | }; | |
1867 | static struct procunit_value_info soft_limit_xu_info[] = { | |
1868 | { USB_XU_SOFT_LIMIT_SELECTOR, " ", USB_MIXER_BOOLEAN }, | |
1869 | { 0 } | |
1870 | }; | |
1871 | static struct procunit_info extunits[] = { | |
1872 | { USB_XU_CLOCK_RATE, "Clock rate", clock_rate_xu_info }, | |
1873 | { USB_XU_CLOCK_SOURCE, "DigitalIn CLK source", clock_source_xu_info }, | |
1874 | { USB_XU_DIGITAL_IO_STATUS, "DigitalOut format:", spdif_format_xu_info }, | |
1875 | { USB_XU_DEVICE_OPTIONS, "AnalogueIn Soft Limit", soft_limit_xu_info }, | |
1876 | { 0 } | |
1877 | }; | |
6bc170e4 | 1878 | |
1da177e4 LT |
1879 | /* |
1880 | * build a processing/extension unit | |
1881 | */ | |
6bc170e4 DM |
1882 | static int build_audio_procunit(struct mixer_build *state, int unitid, |
1883 | void *raw_desc, struct procunit_info *list, | |
1884 | char *name) | |
1da177e4 | 1885 | { |
99fc8645 DM |
1886 | struct uac_processing_unit_descriptor *desc = raw_desc; |
1887 | int num_ins = desc->bNrInPins; | |
86e07d34 TI |
1888 | struct usb_mixer_elem_info *cval; |
1889 | struct snd_kcontrol *kctl; | |
1da177e4 LT |
1890 | int i, err, nameid, type, len; |
1891 | struct procunit_info *info; | |
1892 | struct procunit_value_info *valinfo; | |
c3a3e040 | 1893 | const struct usbmix_name_map *map; |
1da177e4 LT |
1894 | static struct procunit_value_info default_value_info[] = { |
1895 | { 0x01, "Switch", USB_MIXER_BOOLEAN }, | |
1896 | { 0 } | |
1897 | }; | |
1898 | static struct procunit_info default_info = { | |
1899 | 0, NULL, default_value_info | |
1900 | }; | |
1901 | ||
23caaf19 DM |
1902 | if (desc->bLength < 13 || desc->bLength < 13 + num_ins || |
1903 | desc->bLength < num_ins + uac_processing_unit_bControlSize(desc, state->mixer->protocol)) { | |
0ba41d91 | 1904 | usb_audio_err(state->chip, "invalid %s descriptor (id %d)\n", name, unitid); |
1da177e4 LT |
1905 | return -EINVAL; |
1906 | } | |
1907 | ||
1908 | for (i = 0; i < num_ins; i++) { | |
99fc8645 | 1909 | if ((err = parse_audio_unit(state, desc->baSourceID[i])) < 0) |
1da177e4 LT |
1910 | return err; |
1911 | } | |
1912 | ||
99fc8645 | 1913 | type = le16_to_cpu(desc->wProcessType); |
1da177e4 LT |
1914 | for (info = list; info && info->type; info++) |
1915 | if (info->type == type) | |
1916 | break; | |
6bc170e4 | 1917 | if (!info || !info->type) |
1da177e4 LT |
1918 | info = &default_info; |
1919 | ||
1920 | for (valinfo = info->values; valinfo->control; valinfo++) { | |
23caaf19 | 1921 | __u8 *controls = uac_processing_unit_bmControls(desc, state->mixer->protocol); |
99fc8645 | 1922 | |
6bc170e4 | 1923 | if (!(controls[valinfo->control / 8] & (1 << ((valinfo->control % 8) - 1)))) |
1da177e4 | 1924 | continue; |
c3a3e040 JK |
1925 | map = find_map(state, unitid, valinfo->control); |
1926 | if (check_ignored_ctl(map)) | |
1da177e4 | 1927 | continue; |
561b220a | 1928 | cval = kzalloc(sizeof(*cval), GFP_KERNEL); |
a860d95f | 1929 | if (!cval) |
1da177e4 | 1930 | return -ENOMEM; |
3360b84b | 1931 | snd_usb_mixer_elem_init_std(&cval->head, state->mixer, unitid); |
1da177e4 LT |
1932 | cval->control = valinfo->control; |
1933 | cval->val_type = valinfo->val_type; | |
1934 | cval->channels = 1; | |
1935 | ||
1936 | /* get min/max values */ | |
65f25da4 | 1937 | if (type == UAC_PROCESS_UP_DOWNMIX && cval->control == UAC_UD_MODE_SELECT) { |
23caaf19 | 1938 | __u8 *control_spec = uac_processing_unit_specific(desc, state->mixer->protocol); |
1da177e4 LT |
1939 | /* FIXME: hard-coded */ |
1940 | cval->min = 1; | |
99fc8645 | 1941 | cval->max = control_spec[0]; |
1da177e4 LT |
1942 | cval->res = 1; |
1943 | cval->initialized = 1; | |
7d2b451e SK |
1944 | } else { |
1945 | if (type == USB_XU_CLOCK_RATE) { | |
6bc170e4 DM |
1946 | /* |
1947 | * E-Mu USB 0404/0202/TrackerPre/0204 | |
7d2b451e SK |
1948 | * samplerate control quirk |
1949 | */ | |
1950 | cval->min = 0; | |
1951 | cval->max = 5; | |
1952 | cval->res = 1; | |
1953 | cval->initialized = 1; | |
1954 | } else | |
1955 | get_min_max(cval, valinfo->min_value); | |
1956 | } | |
1da177e4 LT |
1957 | |
1958 | kctl = snd_ctl_new1(&mixer_procunit_ctl, cval); | |
6bc170e4 | 1959 | if (!kctl) { |
1da177e4 LT |
1960 | kfree(cval); |
1961 | return -ENOMEM; | |
1962 | } | |
eef90451 | 1963 | kctl->private_free = snd_usb_mixer_elem_free; |
1da177e4 | 1964 | |
6bc170e4 | 1965 | if (check_mapped_name(map, kctl->id.name, sizeof(kctl->id.name))) { |
c3a3e040 | 1966 | /* nothing */ ; |
6bc170e4 | 1967 | } else if (info->name) { |
1da177e4 | 1968 | strlcpy(kctl->id.name, info->name, sizeof(kctl->id.name)); |
6bc170e4 | 1969 | } else { |
23caaf19 | 1970 | nameid = uac_processing_unit_iProcessing(desc, state->mixer->protocol); |
1da177e4 LT |
1971 | len = 0; |
1972 | if (nameid) | |
6bc170e4 DM |
1973 | len = snd_usb_copy_string_desc(state, nameid, |
1974 | kctl->id.name, | |
1975 | sizeof(kctl->id.name)); | |
1976 | if (!len) | |
1da177e4 LT |
1977 | strlcpy(kctl->id.name, name, sizeof(kctl->id.name)); |
1978 | } | |
08d1e635 TI |
1979 | append_ctl_name(kctl, " "); |
1980 | append_ctl_name(kctl, valinfo->suffix); | |
1da177e4 | 1981 | |
0ba41d91 | 1982 | usb_audio_dbg(state->chip, |
6bc170e4 | 1983 | "[%d] PU [%s] ch = %d, val = %d/%d\n", |
3360b84b | 1984 | cval->head.id, kctl->id.name, cval->channels, |
6bc170e4 DM |
1985 | cval->min, cval->max); |
1986 | ||
3360b84b | 1987 | err = snd_usb_mixer_add_control(&cval->head, kctl); |
6bc170e4 | 1988 | if (err < 0) |
1da177e4 LT |
1989 | return err; |
1990 | } | |
1991 | return 0; | |
1992 | } | |
1993 | ||
6bc170e4 DM |
1994 | static int parse_audio_processing_unit(struct mixer_build *state, int unitid, |
1995 | void *raw_desc) | |
1da177e4 | 1996 | { |
6bc170e4 DM |
1997 | return build_audio_procunit(state, unitid, raw_desc, |
1998 | procunits, "Processing Unit"); | |
1da177e4 LT |
1999 | } |
2000 | ||
6bc170e4 DM |
2001 | static int parse_audio_extension_unit(struct mixer_build *state, int unitid, |
2002 | void *raw_desc) | |
1da177e4 | 2003 | { |
6bc170e4 DM |
2004 | /* |
2005 | * Note that we parse extension units with processing unit descriptors. | |
2006 | * That's ok as the layout is the same. | |
2007 | */ | |
2008 | return build_audio_procunit(state, unitid, raw_desc, | |
2009 | extunits, "Extension Unit"); | |
1da177e4 LT |
2010 | } |
2011 | ||
1da177e4 LT |
2012 | /* |
2013 | * Selector Unit | |
2014 | */ | |
2015 | ||
6bc170e4 DM |
2016 | /* |
2017 | * info callback for selector unit | |
1da177e4 LT |
2018 | * use an enumerator type for routing |
2019 | */ | |
6bc170e4 DM |
2020 | static int mixer_ctl_selector_info(struct snd_kcontrol *kcontrol, |
2021 | struct snd_ctl_elem_info *uinfo) | |
1da177e4 | 2022 | { |
86e07d34 | 2023 | struct usb_mixer_elem_info *cval = kcontrol->private_data; |
2a1803a7 | 2024 | const char **itemlist = (const char **)kcontrol->private_value; |
1da177e4 | 2025 | |
5e246b85 TI |
2026 | if (snd_BUG_ON(!itemlist)) |
2027 | return -EINVAL; | |
2a1803a7 | 2028 | return snd_ctl_enum_info(uinfo, 1, cval->max, itemlist); |
1da177e4 LT |
2029 | } |
2030 | ||
2031 | /* get callback for selector unit */ | |
6bc170e4 DM |
2032 | static int mixer_ctl_selector_get(struct snd_kcontrol *kcontrol, |
2033 | struct snd_ctl_elem_value *ucontrol) | |
1da177e4 | 2034 | { |
86e07d34 | 2035 | struct usb_mixer_elem_info *cval = kcontrol->private_data; |
1da177e4 LT |
2036 | int val, err; |
2037 | ||
09414207 | 2038 | err = get_cur_ctl_value(cval, cval->control << 8, &val); |
1da177e4 | 2039 | if (err < 0) { |
5aeee342 TI |
2040 | ucontrol->value.enumerated.item[0] = 0; |
2041 | return filter_error(cval, err); | |
1da177e4 LT |
2042 | } |
2043 | val = get_relative_value(cval, val); | |
2044 | ucontrol->value.enumerated.item[0] = val; | |
2045 | return 0; | |
2046 | } | |
2047 | ||
2048 | /* put callback for selector unit */ | |
6bc170e4 DM |
2049 | static int mixer_ctl_selector_put(struct snd_kcontrol *kcontrol, |
2050 | struct snd_ctl_elem_value *ucontrol) | |
1da177e4 | 2051 | { |
86e07d34 | 2052 | struct usb_mixer_elem_info *cval = kcontrol->private_data; |
1da177e4 LT |
2053 | int val, oval, err; |
2054 | ||
09414207 | 2055 | err = get_cur_ctl_value(cval, cval->control << 8, &oval); |
5aeee342 TI |
2056 | if (err < 0) |
2057 | return filter_error(cval, err); | |
1da177e4 LT |
2058 | val = ucontrol->value.enumerated.item[0]; |
2059 | val = get_abs_value(cval, val); | |
2060 | if (val != oval) { | |
09414207 | 2061 | set_cur_ctl_value(cval, cval->control << 8, val); |
1da177e4 LT |
2062 | return 1; |
2063 | } | |
2064 | return 0; | |
2065 | } | |
2066 | ||
2067 | /* alsa control interface for selector unit */ | |
8fdaebbb | 2068 | static const struct snd_kcontrol_new mixer_selectunit_ctl = { |
1da177e4 LT |
2069 | .iface = SNDRV_CTL_ELEM_IFACE_MIXER, |
2070 | .name = "", /* will be filled later */ | |
2071 | .info = mixer_ctl_selector_info, | |
2072 | .get = mixer_ctl_selector_get, | |
2073 | .put = mixer_ctl_selector_put, | |
2074 | }; | |
2075 | ||
6bc170e4 DM |
2076 | /* |
2077 | * private free callback. | |
1da177e4 LT |
2078 | * free both private_data and private_value |
2079 | */ | |
86e07d34 | 2080 | static void usb_mixer_selector_elem_free(struct snd_kcontrol *kctl) |
1da177e4 LT |
2081 | { |
2082 | int i, num_ins = 0; | |
2083 | ||
2084 | if (kctl->private_data) { | |
86e07d34 | 2085 | struct usb_mixer_elem_info *cval = kctl->private_data; |
1da177e4 LT |
2086 | num_ins = cval->max; |
2087 | kfree(cval); | |
2088 | kctl->private_data = NULL; | |
2089 | } | |
2090 | if (kctl->private_value) { | |
2091 | char **itemlist = (char **)kctl->private_value; | |
2092 | for (i = 0; i < num_ins; i++) | |
2093 | kfree(itemlist[i]); | |
2094 | kfree(itemlist); | |
2095 | kctl->private_value = 0; | |
2096 | } | |
2097 | } | |
2098 | ||
2099 | /* | |
2100 | * parse a selector unit | |
2101 | */ | |
6bc170e4 DM |
2102 | static int parse_audio_selector_unit(struct mixer_build *state, int unitid, |
2103 | void *raw_desc) | |
1da177e4 | 2104 | { |
99fc8645 | 2105 | struct uac_selector_unit_descriptor *desc = raw_desc; |
1da177e4 LT |
2106 | unsigned int i, nameid, len; |
2107 | int err; | |
86e07d34 TI |
2108 | struct usb_mixer_elem_info *cval; |
2109 | struct snd_kcontrol *kctl; | |
c3a3e040 | 2110 | const struct usbmix_name_map *map; |
1da177e4 LT |
2111 | char **namelist; |
2112 | ||
f658f17b TI |
2113 | if (desc->bLength < 5 || !desc->bNrInPins || |
2114 | desc->bLength < 5 + desc->bNrInPins) { | |
0ba41d91 TI |
2115 | usb_audio_err(state->chip, |
2116 | "invalid SELECTOR UNIT descriptor %d\n", unitid); | |
1da177e4 LT |
2117 | return -EINVAL; |
2118 | } | |
2119 | ||
99fc8645 DM |
2120 | for (i = 0; i < desc->bNrInPins; i++) { |
2121 | if ((err = parse_audio_unit(state, desc->baSourceID[i])) < 0) | |
1da177e4 LT |
2122 | return err; |
2123 | } | |
2124 | ||
99fc8645 | 2125 | if (desc->bNrInPins == 1) /* only one ? nonsense! */ |
1da177e4 LT |
2126 | return 0; |
2127 | ||
c3a3e040 JK |
2128 | map = find_map(state, unitid, 0); |
2129 | if (check_ignored_ctl(map)) | |
1da177e4 LT |
2130 | return 0; |
2131 | ||
561b220a | 2132 | cval = kzalloc(sizeof(*cval), GFP_KERNEL); |
a860d95f | 2133 | if (!cval) |
1da177e4 | 2134 | return -ENOMEM; |
3360b84b | 2135 | snd_usb_mixer_elem_init_std(&cval->head, state->mixer, unitid); |
1da177e4 LT |
2136 | cval->val_type = USB_MIXER_U8; |
2137 | cval->channels = 1; | |
2138 | cval->min = 1; | |
99fc8645 | 2139 | cval->max = desc->bNrInPins; |
1da177e4 LT |
2140 | cval->res = 1; |
2141 | cval->initialized = 1; | |
2142 | ||
a358a0ef | 2143 | if (state->mixer->protocol == UAC_VERSION_1) |
09414207 | 2144 | cval->control = 0; |
a358a0ef JR |
2145 | else /* UAC_VERSION_2 */ |
2146 | cval->control = (desc->bDescriptorSubtype == UAC2_CLOCK_SELECTOR) ? | |
2147 | UAC2_CX_CLOCK_SELECTOR : UAC2_SU_SELECTOR; | |
09414207 | 2148 | |
99fc8645 | 2149 | namelist = kmalloc(sizeof(char *) * desc->bNrInPins, GFP_KERNEL); |
6bc170e4 | 2150 | if (!namelist) { |
1da177e4 LT |
2151 | kfree(cval); |
2152 | return -ENOMEM; | |
2153 | } | |
2154 | #define MAX_ITEM_NAME_LEN 64 | |
99fc8645 | 2155 | for (i = 0; i < desc->bNrInPins; i++) { |
86e07d34 | 2156 | struct usb_audio_term iterm; |
1da177e4 LT |
2157 | len = 0; |
2158 | namelist[i] = kmalloc(MAX_ITEM_NAME_LEN, GFP_KERNEL); | |
6bc170e4 | 2159 | if (!namelist[i]) { |
7fbe3ca5 | 2160 | while (i--) |
1da177e4 LT |
2161 | kfree(namelist[i]); |
2162 | kfree(namelist); | |
2163 | kfree(cval); | |
2164 | return -ENOMEM; | |
2165 | } | |
8e062ec7 CL |
2166 | len = check_mapped_selector_name(state, unitid, i, namelist[i], |
2167 | MAX_ITEM_NAME_LEN); | |
99fc8645 | 2168 | if (! len && check_input_term(state, desc->baSourceID[i], &iterm) >= 0) |
1da177e4 LT |
2169 | len = get_term_name(state, &iterm, namelist[i], MAX_ITEM_NAME_LEN, 0); |
2170 | if (! len) | |
af831eef | 2171 | sprintf(namelist[i], "Input %u", i); |
1da177e4 LT |
2172 | } |
2173 | ||
2174 | kctl = snd_ctl_new1(&mixer_selectunit_ctl, cval); | |
2175 | if (! kctl) { | |
0ba41d91 | 2176 | usb_audio_err(state->chip, "cannot malloc kcontrol\n"); |
878b4789 | 2177 | kfree(namelist); |
1da177e4 LT |
2178 | kfree(cval); |
2179 | return -ENOMEM; | |
2180 | } | |
2181 | kctl->private_value = (unsigned long)namelist; | |
2182 | kctl->private_free = usb_mixer_selector_elem_free; | |
2183 | ||
5a15f289 | 2184 | /* check the static mapping table at first */ |
c3a3e040 | 2185 | len = check_mapped_name(map, kctl->id.name, sizeof(kctl->id.name)); |
89b89d12 | 2186 | if (!len) { |
5a15f289 TI |
2187 | /* no mapping ? */ |
2188 | /* if iSelector is given, use it */ | |
2189 | nameid = uac_selector_unit_iSelector(desc); | |
2190 | if (nameid) | |
2191 | len = snd_usb_copy_string_desc(state, nameid, | |
2192 | kctl->id.name, | |
2193 | sizeof(kctl->id.name)); | |
2194 | /* ... or pick up the terminal name at next */ | |
2195 | if (!len) | |
2196 | len = get_term_name(state, &state->oterm, | |
1da177e4 | 2197 | kctl->id.name, sizeof(kctl->id.name), 0); |
5a15f289 | 2198 | /* ... or use the fixed string "USB" as the last resort */ |
6bc170e4 | 2199 | if (!len) |
1da177e4 LT |
2200 | strlcpy(kctl->id.name, "USB", sizeof(kctl->id.name)); |
2201 | ||
5a15f289 | 2202 | /* and add the proper suffix */ |
09414207 DM |
2203 | if (desc->bDescriptorSubtype == UAC2_CLOCK_SELECTOR) |
2204 | append_ctl_name(kctl, " Clock Source"); | |
2205 | else if ((state->oterm.type & 0xff00) == 0x0100) | |
08d1e635 | 2206 | append_ctl_name(kctl, " Capture Source"); |
1da177e4 | 2207 | else |
08d1e635 | 2208 | append_ctl_name(kctl, " Playback Source"); |
1da177e4 LT |
2209 | } |
2210 | ||
0ba41d91 | 2211 | usb_audio_dbg(state->chip, "[%d] SU [%s] items = %d\n", |
3360b84b TI |
2212 | cval->head.id, kctl->id.name, desc->bNrInPins); |
2213 | return snd_usb_mixer_add_control(&cval->head, kctl); | |
1da177e4 LT |
2214 | } |
2215 | ||
1da177e4 LT |
2216 | /* |
2217 | * parse an audio unit recursively | |
2218 | */ | |
2219 | ||
86e07d34 | 2220 | static int parse_audio_unit(struct mixer_build *state, int unitid) |
1da177e4 LT |
2221 | { |
2222 | unsigned char *p1; | |
2223 | ||
2224 | if (test_and_set_bit(unitid, state->unitbitmap)) | |
2225 | return 0; /* the unit already visited */ | |
2226 | ||
2227 | p1 = find_audio_control_unit(state, unitid); | |
2228 | if (!p1) { | |
0ba41d91 | 2229 | usb_audio_err(state->chip, "unit %d not found!\n", unitid); |
1da177e4 LT |
2230 | return -EINVAL; |
2231 | } | |
2232 | ||
2233 | switch (p1[2]) { | |
de48c7bc | 2234 | case UAC_INPUT_TERMINAL: |
1da177e4 | 2235 | return 0; /* NOP */ |
de48c7bc | 2236 | case UAC_MIXER_UNIT: |
1da177e4 | 2237 | return parse_audio_mixer_unit(state, unitid, p1); |
cddaafb9 DM |
2238 | case UAC2_CLOCK_SOURCE: |
2239 | return parse_clock_source_unit(state, unitid, p1); | |
de48c7bc | 2240 | case UAC_SELECTOR_UNIT: |
09414207 | 2241 | case UAC2_CLOCK_SELECTOR: |
1da177e4 | 2242 | return parse_audio_selector_unit(state, unitid, p1); |
de48c7bc | 2243 | case UAC_FEATURE_UNIT: |
1da177e4 | 2244 | return parse_audio_feature_unit(state, unitid, p1); |
69da9bcb | 2245 | case UAC1_PROCESSING_UNIT: |
23caaf19 DM |
2246 | /* UAC2_EFFECT_UNIT has the same value */ |
2247 | if (state->mixer->protocol == UAC_VERSION_1) | |
2248 | return parse_audio_processing_unit(state, unitid, p1); | |
2249 | else | |
2250 | return 0; /* FIXME - effect units not implemented yet */ | |
69da9bcb | 2251 | case UAC1_EXTENSION_UNIT: |
23caaf19 DM |
2252 | /* UAC2_PROCESSING_UNIT_V2 has the same value */ |
2253 | if (state->mixer->protocol == UAC_VERSION_1) | |
2254 | return parse_audio_extension_unit(state, unitid, p1); | |
2255 | else /* UAC_VERSION_2 */ | |
2256 | return parse_audio_processing_unit(state, unitid, p1); | |
61ac5130 TH |
2257 | case UAC2_EXTENSION_UNIT_V2: |
2258 | return parse_audio_extension_unit(state, unitid, p1); | |
1da177e4 | 2259 | default: |
0ba41d91 TI |
2260 | usb_audio_err(state->chip, |
2261 | "unit %u: unexpected type 0x%02x\n", unitid, p1[2]); | |
1da177e4 LT |
2262 | return -EINVAL; |
2263 | } | |
2264 | } | |
2265 | ||
84957a8a CL |
2266 | static void snd_usb_mixer_free(struct usb_mixer_interface *mixer) |
2267 | { | |
124751d5 TI |
2268 | /* kill pending URBs */ |
2269 | snd_usb_mixer_disconnect(mixer); | |
2270 | ||
6639b6c2 CL |
2271 | kfree(mixer->id_elems); |
2272 | if (mixer->urb) { | |
2273 | kfree(mixer->urb->transfer_buffer); | |
2274 | usb_free_urb(mixer->urb); | |
2275 | } | |
68df9de1 | 2276 | usb_free_urb(mixer->rc_urb); |
b259b10c | 2277 | kfree(mixer->rc_setup_packet); |
84957a8a CL |
2278 | kfree(mixer); |
2279 | } | |
2280 | ||
86e07d34 | 2281 | static int snd_usb_mixer_dev_free(struct snd_device *device) |
84957a8a CL |
2282 | { |
2283 | struct usb_mixer_interface *mixer = device->device_data; | |
2284 | snd_usb_mixer_free(mixer); | |
2285 | return 0; | |
2286 | } | |
2287 | ||
1da177e4 LT |
2288 | /* |
2289 | * create mixer controls | |
2290 | * | |
de48c7bc | 2291 | * walk through all UAC_OUTPUT_TERMINAL descriptors to search for mixers |
1da177e4 | 2292 | */ |
84957a8a | 2293 | static int snd_usb_mixer_controls(struct usb_mixer_interface *mixer) |
1da177e4 | 2294 | { |
86e07d34 | 2295 | struct mixer_build state; |
1da177e4 LT |
2296 | int err; |
2297 | const struct usbmix_ctl_map *map; | |
23caaf19 | 2298 | void *p; |
1da177e4 LT |
2299 | |
2300 | memset(&state, 0, sizeof(state)); | |
84957a8a CL |
2301 | state.chip = mixer->chip; |
2302 | state.mixer = mixer; | |
1faa5d07 DM |
2303 | state.buffer = mixer->hostif->extra; |
2304 | state.buflen = mixer->hostif->extralen; | |
1da177e4 LT |
2305 | |
2306 | /* check the mapping table */ | |
27d10f56 CL |
2307 | for (map = usbmix_ctl_maps; map->id; map++) { |
2308 | if (map->id == state.chip->usb_id) { | |
1da177e4 | 2309 | state.map = map->map; |
8e062ec7 | 2310 | state.selector_map = map->selector_map; |
84957a8a | 2311 | mixer->ignore_ctl_error = map->ignore_ctl_error; |
1da177e4 LT |
2312 | break; |
2313 | } | |
2314 | } | |
1da177e4 | 2315 | |
23caaf19 | 2316 | p = NULL; |
6bc170e4 DM |
2317 | while ((p = snd_usb_find_csint_desc(mixer->hostif->extra, |
2318 | mixer->hostif->extralen, | |
1faa5d07 | 2319 | p, UAC_OUTPUT_TERMINAL)) != NULL) { |
23caaf19 | 2320 | if (mixer->protocol == UAC_VERSION_1) { |
69da9bcb | 2321 | struct uac1_output_terminal_descriptor *desc = p; |
23caaf19 DM |
2322 | |
2323 | if (desc->bLength < sizeof(*desc)) | |
2324 | continue; /* invalid descriptor? */ | |
6bc170e4 DM |
2325 | /* mark terminal ID as visited */ |
2326 | set_bit(desc->bTerminalID, state.unitbitmap); | |
23caaf19 DM |
2327 | state.oterm.id = desc->bTerminalID; |
2328 | state.oterm.type = le16_to_cpu(desc->wTerminalType); | |
2329 | state.oterm.name = desc->iTerminal; | |
2330 | err = parse_audio_unit(&state, desc->bSourceID); | |
83ea5d18 | 2331 | if (err < 0 && err != -EINVAL) |
23caaf19 DM |
2332 | return err; |
2333 | } else { /* UAC_VERSION_2 */ | |
2334 | struct uac2_output_terminal_descriptor *desc = p; | |
2335 | ||
2336 | if (desc->bLength < sizeof(*desc)) | |
2337 | continue; /* invalid descriptor? */ | |
6bc170e4 DM |
2338 | /* mark terminal ID as visited */ |
2339 | set_bit(desc->bTerminalID, state.unitbitmap); | |
23caaf19 DM |
2340 | state.oterm.id = desc->bTerminalID; |
2341 | state.oterm.type = le16_to_cpu(desc->wTerminalType); | |
2342 | state.oterm.name = desc->iTerminal; | |
2343 | err = parse_audio_unit(&state, desc->bSourceID); | |
83ea5d18 | 2344 | if (err < 0 && err != -EINVAL) |
23caaf19 | 2345 | return err; |
09414207 | 2346 | |
6bc170e4 DM |
2347 | /* |
2348 | * For UAC2, use the same approach to also add the | |
2349 | * clock selectors | |
2350 | */ | |
09414207 | 2351 | err = parse_audio_unit(&state, desc->bCSourceID); |
83ea5d18 | 2352 | if (err < 0 && err != -EINVAL) |
09414207 | 2353 | return err; |
23caaf19 | 2354 | } |
1da177e4 | 2355 | } |
23caaf19 | 2356 | |
1da177e4 LT |
2357 | return 0; |
2358 | } | |
84957a8a | 2359 | |
7b1eda22 | 2360 | void snd_usb_mixer_notify_id(struct usb_mixer_interface *mixer, int unitid) |
6639b6c2 | 2361 | { |
3360b84b | 2362 | struct usb_mixer_elem_list *list; |
6639b6c2 | 2363 | |
b2500b58 JS |
2364 | for (list = mixer->id_elems[unitid]; list; list = list->next_id_elem) { |
2365 | struct usb_mixer_elem_info *info = | |
2366 | (struct usb_mixer_elem_info *)list; | |
2367 | /* invalidate cache, so the value is read from the device */ | |
2368 | info->cached = 0; | |
6639b6c2 | 2369 | snd_ctl_notify(mixer->chip->card, SNDRV_CTL_EVENT_MASK_VALUE, |
3360b84b | 2370 | &list->kctl->id); |
b2500b58 | 2371 | } |
6639b6c2 CL |
2372 | } |
2373 | ||
ebfdeea3 | 2374 | static void snd_usb_mixer_dump_cval(struct snd_info_buffer *buffer, |
3360b84b | 2375 | struct usb_mixer_elem_list *list) |
ebfdeea3 | 2376 | { |
3360b84b | 2377 | struct usb_mixer_elem_info *cval = (struct usb_mixer_elem_info *)list; |
ebfdeea3 JK |
2378 | static char *val_types[] = {"BOOLEAN", "INV_BOOLEAN", |
2379 | "S8", "U8", "S16", "U16"}; | |
ebfdeea3 | 2380 | snd_iprintf(buffer, " Info: id=%i, control=%i, cmask=0x%x, " |
3360b84b | 2381 | "channels=%i, type=\"%s\"\n", cval->head.id, |
ebfdeea3 JK |
2382 | cval->control, cval->cmask, cval->channels, |
2383 | val_types[cval->val_type]); | |
2384 | snd_iprintf(buffer, " Volume: min=%i, max=%i, dBmin=%i, dBmax=%i\n", | |
2385 | cval->min, cval->max, cval->dBmin, cval->dBmax); | |
2386 | } | |
2387 | ||
2388 | static void snd_usb_mixer_proc_read(struct snd_info_entry *entry, | |
2389 | struct snd_info_buffer *buffer) | |
2390 | { | |
2391 | struct snd_usb_audio *chip = entry->private_data; | |
2392 | struct usb_mixer_interface *mixer; | |
3360b84b | 2393 | struct usb_mixer_elem_list *list; |
ebfdeea3 JK |
2394 | int unitid; |
2395 | ||
2396 | list_for_each_entry(mixer, &chip->mixer_list, list) { | |
2397 | snd_iprintf(buffer, | |
7affdc17 | 2398 | "USB Mixer: usb_id=0x%08x, ctrlif=%i, ctlerr=%i\n", |
3d8d4dcf | 2399 | chip->usb_id, snd_usb_ctrl_intf(chip), |
7affdc17 | 2400 | mixer->ignore_ctl_error); |
ebfdeea3 JK |
2401 | snd_iprintf(buffer, "Card: %s\n", chip->card->longname); |
2402 | for (unitid = 0; unitid < MAX_ID_ELEMS; unitid++) { | |
3360b84b TI |
2403 | for (list = mixer->id_elems[unitid]; list; |
2404 | list = list->next_id_elem) { | |
2405 | snd_iprintf(buffer, " Unit: %i\n", list->id); | |
2406 | if (list->kctl) | |
2407 | snd_iprintf(buffer, | |
2408 | " Control: name=\"%s\", index=%i\n", | |
2409 | list->kctl->id.name, | |
2410 | list->kctl->id.index); | |
2411 | if (list->dump) | |
2412 | list->dump(buffer, list); | |
2413 | } | |
ebfdeea3 JK |
2414 | } |
2415 | } | |
2416 | } | |
2417 | ||
e213e9cf DM |
2418 | static void snd_usb_mixer_interrupt_v2(struct usb_mixer_interface *mixer, |
2419 | int attribute, int value, int index) | |
2420 | { | |
3360b84b | 2421 | struct usb_mixer_elem_list *list; |
e213e9cf DM |
2422 | __u8 unitid = (index >> 8) & 0xff; |
2423 | __u8 control = (value >> 8) & 0xff; | |
2424 | __u8 channel = value & 0xff; | |
191227d9 | 2425 | unsigned int count = 0; |
e213e9cf DM |
2426 | |
2427 | if (channel >= MAX_CHANNELS) { | |
0ba41d91 TI |
2428 | usb_audio_dbg(mixer->chip, |
2429 | "%s(): bogus channel number %d\n", | |
2430 | __func__, channel); | |
e213e9cf DM |
2431 | return; |
2432 | } | |
2433 | ||
191227d9 DM |
2434 | for (list = mixer->id_elems[unitid]; list; list = list->next_id_elem) |
2435 | count++; | |
2436 | ||
2437 | if (count == 0) | |
2438 | return; | |
2439 | ||
3360b84b TI |
2440 | for (list = mixer->id_elems[unitid]; list; list = list->next_id_elem) { |
2441 | struct usb_mixer_elem_info *info; | |
2442 | ||
2443 | if (!list->kctl) | |
2444 | continue; | |
2445 | ||
2446 | info = (struct usb_mixer_elem_info *)list; | |
191227d9 | 2447 | if (count > 1 && info->control != control) |
e213e9cf DM |
2448 | continue; |
2449 | ||
2450 | switch (attribute) { | |
2451 | case UAC2_CS_CUR: | |
2452 | /* invalidate cache, so the value is read from the device */ | |
2453 | if (channel) | |
2454 | info->cached &= ~(1 << channel); | |
2455 | else /* master channel */ | |
2456 | info->cached = 0; | |
2457 | ||
2458 | snd_ctl_notify(mixer->chip->card, SNDRV_CTL_EVENT_MASK_VALUE, | |
3360b84b | 2459 | &info->head.kctl->id); |
e213e9cf DM |
2460 | break; |
2461 | ||
2462 | case UAC2_CS_RANGE: | |
2463 | /* TODO */ | |
2464 | break; | |
2465 | ||
2466 | case UAC2_CS_MEM: | |
2467 | /* TODO */ | |
2468 | break; | |
2469 | ||
2470 | default: | |
0ba41d91 TI |
2471 | usb_audio_dbg(mixer->chip, |
2472 | "unknown attribute %d in interrupt\n", | |
2473 | attribute); | |
e213e9cf DM |
2474 | break; |
2475 | } /* switch */ | |
2476 | } | |
2477 | } | |
2478 | ||
2479 | static void snd_usb_mixer_interrupt(struct urb *urb) | |
6639b6c2 CL |
2480 | { |
2481 | struct usb_mixer_interface *mixer = urb->context; | |
e213e9cf | 2482 | int len = urb->actual_length; |
edf7de31 | 2483 | int ustatus = urb->status; |
e213e9cf | 2484 | |
edf7de31 | 2485 | if (ustatus != 0) |
e213e9cf | 2486 | goto requeue; |
6639b6c2 | 2487 | |
e213e9cf DM |
2488 | if (mixer->protocol == UAC_VERSION_1) { |
2489 | struct uac1_status_word *status; | |
6639b6c2 | 2490 | |
e213e9cf DM |
2491 | for (status = urb->transfer_buffer; |
2492 | len >= sizeof(*status); | |
2493 | len -= sizeof(*status), status++) { | |
0ba41d91 | 2494 | dev_dbg(&urb->dev->dev, "status interrupt: %02x %02x\n", |
e213e9cf DM |
2495 | status->bStatusType, |
2496 | status->bOriginator); | |
2497 | ||
6639b6c2 | 2498 | /* ignore any notifications not from the control interface */ |
e213e9cf DM |
2499 | if ((status->bStatusType & UAC1_STATUS_TYPE_ORIG_MASK) != |
2500 | UAC1_STATUS_TYPE_ORIG_AUDIO_CONTROL_IF) | |
6639b6c2 | 2501 | continue; |
e213e9cf DM |
2502 | |
2503 | if (status->bStatusType & UAC1_STATUS_TYPE_MEM_CHANGED) | |
2504 | snd_usb_mixer_rc_memory_change(mixer, status->bOriginator); | |
b259b10c | 2505 | else |
e213e9cf DM |
2506 | snd_usb_mixer_notify_id(mixer, status->bOriginator); |
2507 | } | |
2508 | } else { /* UAC_VERSION_2 */ | |
2509 | struct uac2_interrupt_data_msg *msg; | |
2510 | ||
2511 | for (msg = urb->transfer_buffer; | |
2512 | len >= sizeof(*msg); | |
2513 | len -= sizeof(*msg), msg++) { | |
2514 | /* drop vendor specific and endpoint requests */ | |
2515 | if ((msg->bInfo & UAC2_INTERRUPT_DATA_MSG_VENDOR) || | |
2516 | (msg->bInfo & UAC2_INTERRUPT_DATA_MSG_EP)) | |
2517 | continue; | |
2518 | ||
2519 | snd_usb_mixer_interrupt_v2(mixer, msg->bAttribute, | |
2520 | le16_to_cpu(msg->wValue), | |
2521 | le16_to_cpu(msg->wIndex)); | |
6639b6c2 CL |
2522 | } |
2523 | } | |
e213e9cf DM |
2524 | |
2525 | requeue: | |
6bc170e4 DM |
2526 | if (ustatus != -ENOENT && |
2527 | ustatus != -ECONNRESET && | |
2528 | ustatus != -ESHUTDOWN) { | |
6639b6c2 CL |
2529 | urb->dev = mixer->chip->dev; |
2530 | usb_submit_urb(urb, GFP_ATOMIC); | |
2531 | } | |
2532 | } | |
2533 | ||
2534 | /* create the handler for the optional status interrupt endpoint */ | |
2535 | static int snd_usb_mixer_status_create(struct usb_mixer_interface *mixer) | |
2536 | { | |
6639b6c2 CL |
2537 | struct usb_endpoint_descriptor *ep; |
2538 | void *transfer_buffer; | |
2539 | int buffer_length; | |
2540 | unsigned int epnum; | |
2541 | ||
6639b6c2 | 2542 | /* we need one interrupt input endpoint */ |
1faa5d07 | 2543 | if (get_iface_desc(mixer->hostif)->bNumEndpoints < 1) |
6639b6c2 | 2544 | return 0; |
1faa5d07 | 2545 | ep = get_endpoint(mixer->hostif, 0); |
913ae5a2 | 2546 | if (!usb_endpoint_dir_in(ep) || !usb_endpoint_xfer_int(ep)) |
6639b6c2 CL |
2547 | return 0; |
2548 | ||
42a6e66f | 2549 | epnum = usb_endpoint_num(ep); |
6639b6c2 CL |
2550 | buffer_length = le16_to_cpu(ep->wMaxPacketSize); |
2551 | transfer_buffer = kmalloc(buffer_length, GFP_KERNEL); | |
2552 | if (!transfer_buffer) | |
2553 | return -ENOMEM; | |
2554 | mixer->urb = usb_alloc_urb(0, GFP_KERNEL); | |
2555 | if (!mixer->urb) { | |
2556 | kfree(transfer_buffer); | |
2557 | return -ENOMEM; | |
2558 | } | |
2559 | usb_fill_int_urb(mixer->urb, mixer->chip->dev, | |
2560 | usb_rcvintpipe(mixer->chip->dev, epnum), | |
2561 | transfer_buffer, buffer_length, | |
e213e9cf | 2562 | snd_usb_mixer_interrupt, mixer, ep->bInterval); |
6639b6c2 CL |
2563 | usb_submit_urb(mixer->urb, GFP_KERNEL); |
2564 | return 0; | |
2565 | } | |
2566 | ||
7a9b8063 TI |
2567 | int snd_usb_create_mixer(struct snd_usb_audio *chip, int ctrlif, |
2568 | int ignore_error) | |
84957a8a | 2569 | { |
86e07d34 | 2570 | static struct snd_device_ops dev_ops = { |
84957a8a CL |
2571 | .dev_free = snd_usb_mixer_dev_free |
2572 | }; | |
2573 | struct usb_mixer_interface *mixer; | |
ebfdeea3 | 2574 | struct snd_info_entry *entry; |
23caaf19 | 2575 | int err; |
84957a8a CL |
2576 | |
2577 | strcpy(chip->card->mixername, "USB Mixer"); | |
2578 | ||
561b220a | 2579 | mixer = kzalloc(sizeof(*mixer), GFP_KERNEL); |
84957a8a CL |
2580 | if (!mixer) |
2581 | return -ENOMEM; | |
2582 | mixer->chip = chip; | |
7a9b8063 | 2583 | mixer->ignore_ctl_error = ignore_error; |
291186e0 JK |
2584 | mixer->id_elems = kcalloc(MAX_ID_ELEMS, sizeof(*mixer->id_elems), |
2585 | GFP_KERNEL); | |
6639b6c2 CL |
2586 | if (!mixer->id_elems) { |
2587 | kfree(mixer); | |
2588 | return -ENOMEM; | |
2589 | } | |
84957a8a | 2590 | |
1faa5d07 DM |
2591 | mixer->hostif = &usb_ifnum_to_if(chip->dev, ctrlif)->altsetting[0]; |
2592 | switch (get_iface_desc(mixer->hostif)->bInterfaceProtocol) { | |
a2acad82 CL |
2593 | case UAC_VERSION_1: |
2594 | default: | |
2595 | mixer->protocol = UAC_VERSION_1; | |
2596 | break; | |
2597 | case UAC_VERSION_2: | |
2598 | mixer->protocol = UAC_VERSION_2; | |
2599 | break; | |
2600 | } | |
7b8a043f | 2601 | |
6639b6c2 | 2602 | if ((err = snd_usb_mixer_controls(mixer)) < 0 || |
93446edc CL |
2603 | (err = snd_usb_mixer_status_create(mixer)) < 0) |
2604 | goto _error; | |
84957a8a | 2605 | |
7b1eda22 | 2606 | snd_usb_mixer_apply_create_quirk(mixer); |
468b8fde | 2607 | |
9cbb2808 | 2608 | err = snd_device_new(chip->card, SNDRV_DEV_CODEC, mixer, &dev_ops); |
93446edc CL |
2609 | if (err < 0) |
2610 | goto _error; | |
ebfdeea3 JK |
2611 | |
2612 | if (list_empty(&chip->mixer_list) && | |
2613 | !snd_card_proc_new(chip->card, "usbmixer", &entry)) | |
2614 | snd_info_set_text_ops(entry, chip, snd_usb_mixer_proc_read); | |
2615 | ||
84957a8a CL |
2616 | list_add(&mixer->list, &chip->mixer_list); |
2617 | return 0; | |
93446edc CL |
2618 | |
2619 | _error: | |
2620 | snd_usb_mixer_free(mixer); | |
2621 | return err; | |
84957a8a CL |
2622 | } |
2623 | ||
a6cece9d | 2624 | void snd_usb_mixer_disconnect(struct usb_mixer_interface *mixer) |
84957a8a | 2625 | { |
124751d5 TI |
2626 | if (mixer->disconnected) |
2627 | return; | |
2628 | if (mixer->urb) | |
2629 | usb_kill_urb(mixer->urb); | |
2630 | if (mixer->rc_urb) | |
2631 | usb_kill_urb(mixer->rc_urb); | |
2632 | mixer->disconnected = true; | |
84957a8a | 2633 | } |
400362f1 TI |
2634 | |
2635 | #ifdef CONFIG_PM | |
2636 | /* stop any bus activity of a mixer */ | |
2637 | static void snd_usb_mixer_inactivate(struct usb_mixer_interface *mixer) | |
2638 | { | |
2639 | usb_kill_urb(mixer->urb); | |
2640 | usb_kill_urb(mixer->rc_urb); | |
2641 | } | |
2642 | ||
2643 | static int snd_usb_mixer_activate(struct usb_mixer_interface *mixer) | |
2644 | { | |
2645 | int err; | |
2646 | ||
2647 | if (mixer->urb) { | |
2648 | err = usb_submit_urb(mixer->urb, GFP_NOIO); | |
2649 | if (err < 0) | |
2650 | return err; | |
2651 | } | |
2652 | ||
2653 | return 0; | |
2654 | } | |
2655 | ||
2656 | int snd_usb_mixer_suspend(struct usb_mixer_interface *mixer) | |
2657 | { | |
2658 | snd_usb_mixer_inactivate(mixer); | |
2659 | return 0; | |
2660 | } | |
2661 | ||
3360b84b | 2662 | static int restore_mixer_value(struct usb_mixer_elem_list *list) |
400362f1 | 2663 | { |
3360b84b | 2664 | struct usb_mixer_elem_info *cval = (struct usb_mixer_elem_info *)list; |
400362f1 TI |
2665 | int c, err, idx; |
2666 | ||
2667 | if (cval->cmask) { | |
2668 | idx = 0; | |
2669 | for (c = 0; c < MAX_CHANNELS; c++) { | |
2670 | if (!(cval->cmask & (1 << c))) | |
2671 | continue; | |
6aa6925c | 2672 | if (cval->cached & (1 << (c + 1))) { |
eef90451 | 2673 | err = snd_usb_set_cur_mix_value(cval, c + 1, idx, |
400362f1 TI |
2674 | cval->cache_val[idx]); |
2675 | if (err < 0) | |
2676 | return err; | |
2677 | } | |
2678 | idx++; | |
2679 | } | |
2680 | } else { | |
2681 | /* master */ | |
2682 | if (cval->cached) { | |
eef90451 | 2683 | err = snd_usb_set_cur_mix_value(cval, 0, 0, *cval->cache_val); |
400362f1 TI |
2684 | if (err < 0) |
2685 | return err; | |
2686 | } | |
2687 | } | |
2688 | ||
2689 | return 0; | |
2690 | } | |
2691 | ||
2692 | int snd_usb_mixer_resume(struct usb_mixer_interface *mixer, bool reset_resume) | |
2693 | { | |
3360b84b | 2694 | struct usb_mixer_elem_list *list; |
400362f1 TI |
2695 | int id, err; |
2696 | ||
400362f1 TI |
2697 | if (reset_resume) { |
2698 | /* restore cached mixer values */ | |
2699 | for (id = 0; id < MAX_ID_ELEMS; id++) { | |
3360b84b TI |
2700 | for (list = mixer->id_elems[id]; list; |
2701 | list = list->next_id_elem) { | |
2702 | if (list->resume) { | |
2703 | err = list->resume(list); | |
2704 | if (err < 0) | |
2705 | return err; | |
2706 | } | |
400362f1 TI |
2707 | } |
2708 | } | |
2709 | } | |
2710 | ||
2711 | return snd_usb_mixer_activate(mixer); | |
2712 | } | |
2713 | #endif | |
3360b84b TI |
2714 | |
2715 | void snd_usb_mixer_elem_init_std(struct usb_mixer_elem_list *list, | |
2716 | struct usb_mixer_interface *mixer, | |
2717 | int unitid) | |
2718 | { | |
2719 | list->mixer = mixer; | |
2720 | list->id = unitid; | |
2721 | list->dump = snd_usb_mixer_dump_cval; | |
2722 | #ifdef CONFIG_PM | |
2723 | list->resume = restore_mixer_value; | |
2724 | #endif | |
2725 | } |