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Commit | Line | Data |
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1da177e4 LT |
1 | /* |
2 | * (Tentative) USB Audio Driver for ALSA | |
3 | * | |
4 | * Mixer control part | |
5 | * | |
6 | * Copyright (c) 2002 by Takashi Iwai <tiwai@suse.de> | |
7 | * | |
8 | * Many codes borrowed from audio.c by | |
9 | * Alan Cox (alan@lxorguk.ukuu.org.uk) | |
10 | * Thomas Sailer (sailer@ife.ee.ethz.ch) | |
11 | * | |
12 | * | |
13 | * This program is free software; you can redistribute it and/or modify | |
14 | * it under the terms of the GNU General Public License as published by | |
15 | * the Free Software Foundation; either version 2 of the License, or | |
16 | * (at your option) any later version. | |
17 | * | |
18 | * This program is distributed in the hope that it will be useful, | |
19 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
20 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
21 | * GNU General Public License for more details. | |
22 | * | |
23 | * You should have received a copy of the GNU General Public License | |
24 | * along with this program; if not, write to the Free Software | |
25 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA | |
26 | * | |
27 | */ | |
28 | ||
157a57b6 DM |
29 | /* |
30 | * TODOs, for both the mixer and the streaming interfaces: | |
31 | * | |
32 | * - support for UAC2 effect units | |
33 | * - support for graphical equalizers | |
34 | * - RANGE and MEM set commands (UAC2) | |
35 | * - RANGE and MEM interrupt dispatchers (UAC2) | |
36 | * - audio channel clustering (UAC2) | |
37 | * - audio sample rate converter units (UAC2) | |
38 | * - proper handling of clock multipliers (UAC2) | |
39 | * - dispatch clock change notifications (UAC2) | |
40 | * - stop PCM streams which use a clock that became invalid | |
41 | * - stop PCM streams which use a clock selector that has changed | |
42 | * - parse available sample rates again when clock sources changed | |
43 | */ | |
44 | ||
1da177e4 LT |
45 | #include <linux/bitops.h> |
46 | #include <linux/init.h> | |
47 | #include <linux/list.h> | |
cddaafb9 | 48 | #include <linux/log2.h> |
1da177e4 LT |
49 | #include <linux/slab.h> |
50 | #include <linux/string.h> | |
51 | #include <linux/usb.h> | |
28e1b773 | 52 | #include <linux/usb/audio.h> |
23caaf19 | 53 | #include <linux/usb/audio-v2.h> |
28e1b773 | 54 | |
1da177e4 LT |
55 | #include <sound/core.h> |
56 | #include <sound/control.h> | |
b259b10c | 57 | #include <sound/hwdep.h> |
aafad562 | 58 | #include <sound/info.h> |
7bc5ba7e | 59 | #include <sound/tlv.h> |
1da177e4 LT |
60 | |
61 | #include "usbaudio.h" | |
f0b5e634 | 62 | #include "mixer.h" |
e5779998 | 63 | #include "helper.h" |
7b1eda22 | 64 | #include "mixer_quirks.h" |
88a8516a | 65 | #include "power.h" |
4d1a70da | 66 | |
ebfdeea3 JK |
67 | #define MAX_ID_ELEMS 256 |
68 | ||
1da177e4 LT |
69 | struct usb_audio_term { |
70 | int id; | |
71 | int type; | |
72 | int channels; | |
73 | unsigned int chconfig; | |
74 | int name; | |
75 | }; | |
76 | ||
77 | struct usbmix_name_map; | |
78 | ||
86e07d34 TI |
79 | struct mixer_build { |
80 | struct snd_usb_audio *chip; | |
84957a8a | 81 | struct usb_mixer_interface *mixer; |
1da177e4 LT |
82 | unsigned char *buffer; |
83 | unsigned int buflen; | |
291186e0 | 84 | DECLARE_BITMAP(unitbitmap, MAX_ID_ELEMS); |
86e07d34 | 85 | struct usb_audio_term oterm; |
1da177e4 | 86 | const struct usbmix_name_map *map; |
8e062ec7 | 87 | const struct usbmix_selector_map *selector_map; |
1da177e4 LT |
88 | }; |
89 | ||
1cdfa9f3 | 90 | /*E-mu 0202/0404/0204 eXtension Unit(XU) control*/ |
7d2b451e SK |
91 | enum { |
92 | USB_XU_CLOCK_RATE = 0xe301, | |
93 | USB_XU_CLOCK_SOURCE = 0xe302, | |
94 | USB_XU_DIGITAL_IO_STATUS = 0xe303, | |
95 | USB_XU_DEVICE_OPTIONS = 0xe304, | |
96 | USB_XU_DIRECT_MONITORING = 0xe305, | |
97 | USB_XU_METERING = 0xe306 | |
98 | }; | |
99 | enum { | |
100 | USB_XU_CLOCK_SOURCE_SELECTOR = 0x02, /* clock source*/ | |
101 | USB_XU_CLOCK_RATE_SELECTOR = 0x03, /* clock rate */ | |
102 | USB_XU_DIGITAL_FORMAT_SELECTOR = 0x01, /* the spdif format */ | |
103 | USB_XU_SOFT_LIMIT_SELECTOR = 0x03 /* soft limiter */ | |
104 | }; | |
1da177e4 LT |
105 | |
106 | /* | |
107 | * manual mapping of mixer names | |
108 | * if the mixer topology is too complicated and the parsed names are | |
109 | * ambiguous, add the entries in usbmixer_maps.c. | |
110 | */ | |
f0b5e634 | 111 | #include "mixer_maps.c" |
1da177e4 | 112 | |
c3a3e040 JK |
113 | static const struct usbmix_name_map * |
114 | find_map(struct mixer_build *state, int unitid, int control) | |
1da177e4 | 115 | { |
c3a3e040 | 116 | const struct usbmix_name_map *p = state->map; |
1da177e4 | 117 | |
c3a3e040 JK |
118 | if (!p) |
119 | return NULL; | |
1da177e4 LT |
120 | |
121 | for (p = state->map; p->id; p++) { | |
c3a3e040 JK |
122 | if (p->id == unitid && |
123 | (!control || !p->control || control == p->control)) | |
124 | return p; | |
1da177e4 | 125 | } |
c3a3e040 | 126 | return NULL; |
1da177e4 LT |
127 | } |
128 | ||
c3a3e040 JK |
129 | /* get the mapped name if the unit matches */ |
130 | static int | |
131 | check_mapped_name(const struct usbmix_name_map *p, char *buf, int buflen) | |
1da177e4 | 132 | { |
c3a3e040 JK |
133 | if (!p || !p->name) |
134 | return 0; | |
1da177e4 | 135 | |
c3a3e040 JK |
136 | buflen--; |
137 | return strlcpy(buf, p->name, buflen); | |
138 | } | |
139 | ||
5aeee342 TI |
140 | /* ignore the error value if ignore_ctl_error flag is set */ |
141 | #define filter_error(cval, err) \ | |
3360b84b | 142 | ((cval)->head.mixer->ignore_ctl_error ? 0 : (err)) |
5aeee342 | 143 | |
c3a3e040 JK |
144 | /* check whether the control should be ignored */ |
145 | static inline int | |
146 | check_ignored_ctl(const struct usbmix_name_map *p) | |
147 | { | |
148 | if (!p || p->name || p->dB) | |
1da177e4 | 149 | return 0; |
c3a3e040 JK |
150 | return 1; |
151 | } | |
152 | ||
153 | /* dB mapping */ | |
154 | static inline void check_mapped_dB(const struct usbmix_name_map *p, | |
155 | struct usb_mixer_elem_info *cval) | |
156 | { | |
157 | if (p && p->dB) { | |
158 | cval->dBmin = p->dB->min; | |
159 | cval->dBmax = p->dB->max; | |
38b65190 | 160 | cval->initialized = 1; |
1da177e4 | 161 | } |
1da177e4 LT |
162 | } |
163 | ||
8e062ec7 | 164 | /* get the mapped selector source name */ |
86e07d34 | 165 | static int check_mapped_selector_name(struct mixer_build *state, int unitid, |
8e062ec7 CL |
166 | int index, char *buf, int buflen) |
167 | { | |
168 | const struct usbmix_selector_map *p; | |
169 | ||
6bc170e4 | 170 | if (!state->selector_map) |
8e062ec7 CL |
171 | return 0; |
172 | for (p = state->selector_map; p->id; p++) { | |
173 | if (p->id == unitid && index < p->count) | |
174 | return strlcpy(buf, p->names[index], buflen); | |
175 | } | |
176 | return 0; | |
177 | } | |
178 | ||
1da177e4 LT |
179 | /* |
180 | * find an audio control unit with the given unit id | |
181 | */ | |
6bc170e4 DM |
182 | static void *find_audio_control_unit(struct mixer_build *state, |
183 | unsigned char unit) | |
1da177e4 | 184 | { |
67e1daa0 DM |
185 | /* we just parse the header */ |
186 | struct uac_feature_unit_descriptor *hdr = NULL; | |
187 | ||
188 | while ((hdr = snd_usb_find_desc(state->buffer, state->buflen, hdr, | |
189 | USB_DT_CS_INTERFACE)) != NULL) { | |
190 | if (hdr->bLength >= 4 && | |
191 | hdr->bDescriptorSubtype >= UAC_INPUT_TERMINAL && | |
192 | hdr->bDescriptorSubtype <= UAC2_SAMPLE_RATE_CONVERTER && | |
193 | hdr->bUnitID == unit) | |
194 | return hdr; | |
1da177e4 | 195 | } |
67e1daa0 | 196 | |
1da177e4 LT |
197 | return NULL; |
198 | } | |
199 | ||
1da177e4 LT |
200 | /* |
201 | * copy a string with the given id | |
202 | */ | |
6bc170e4 DM |
203 | static int snd_usb_copy_string_desc(struct mixer_build *state, |
204 | int index, char *buf, int maxlen) | |
1da177e4 LT |
205 | { |
206 | int len = usb_string(state->chip->dev, index, buf, maxlen - 1); | |
207 | buf[len] = 0; | |
208 | return len; | |
209 | } | |
210 | ||
211 | /* | |
212 | * convert from the byte/word on usb descriptor to the zero-based integer | |
213 | */ | |
86e07d34 | 214 | static int convert_signed_value(struct usb_mixer_elem_info *cval, int val) |
1da177e4 LT |
215 | { |
216 | switch (cval->val_type) { | |
217 | case USB_MIXER_BOOLEAN: | |
218 | return !!val; | |
219 | case USB_MIXER_INV_BOOLEAN: | |
220 | return !val; | |
221 | case USB_MIXER_U8: | |
222 | val &= 0xff; | |
223 | break; | |
224 | case USB_MIXER_S8: | |
225 | val &= 0xff; | |
226 | if (val >= 0x80) | |
227 | val -= 0x100; | |
228 | break; | |
229 | case USB_MIXER_U16: | |
230 | val &= 0xffff; | |
231 | break; | |
232 | case USB_MIXER_S16: | |
233 | val &= 0xffff; | |
234 | if (val >= 0x8000) | |
235 | val -= 0x10000; | |
236 | break; | |
237 | } | |
238 | return val; | |
239 | } | |
240 | ||
241 | /* | |
242 | * convert from the zero-based int to the byte/word for usb descriptor | |
243 | */ | |
86e07d34 | 244 | static int convert_bytes_value(struct usb_mixer_elem_info *cval, int val) |
1da177e4 LT |
245 | { |
246 | switch (cval->val_type) { | |
247 | case USB_MIXER_BOOLEAN: | |
248 | return !!val; | |
249 | case USB_MIXER_INV_BOOLEAN: | |
250 | return !val; | |
251 | case USB_MIXER_S8: | |
252 | case USB_MIXER_U8: | |
253 | return val & 0xff; | |
254 | case USB_MIXER_S16: | |
255 | case USB_MIXER_U16: | |
256 | return val & 0xffff; | |
257 | } | |
258 | return 0; /* not reached */ | |
259 | } | |
260 | ||
86e07d34 | 261 | static int get_relative_value(struct usb_mixer_elem_info *cval, int val) |
1da177e4 | 262 | { |
6bc170e4 | 263 | if (!cval->res) |
1da177e4 LT |
264 | cval->res = 1; |
265 | if (val < cval->min) | |
266 | return 0; | |
14790f1c TI |
267 | else if (val >= cval->max) |
268 | return (cval->max - cval->min + cval->res - 1) / cval->res; | |
1da177e4 LT |
269 | else |
270 | return (val - cval->min) / cval->res; | |
271 | } | |
272 | ||
86e07d34 | 273 | static int get_abs_value(struct usb_mixer_elem_info *cval, int val) |
1da177e4 LT |
274 | { |
275 | if (val < 0) | |
276 | return cval->min; | |
6bc170e4 | 277 | if (!cval->res) |
1da177e4 LT |
278 | cval->res = 1; |
279 | val *= cval->res; | |
280 | val += cval->min; | |
281 | if (val > cval->max) | |
282 | return cval->max; | |
283 | return val; | |
284 | } | |
285 | ||
bc18e31c JS |
286 | static int uac2_ctl_value_size(int val_type) |
287 | { | |
288 | switch (val_type) { | |
289 | case USB_MIXER_S32: | |
290 | case USB_MIXER_U32: | |
291 | return 4; | |
292 | case USB_MIXER_S16: | |
293 | case USB_MIXER_U16: | |
294 | return 2; | |
295 | default: | |
296 | return 1; | |
297 | } | |
298 | return 0; /* unreachable */ | |
299 | } | |
300 | ||
1da177e4 LT |
301 | |
302 | /* | |
303 | * retrieve a mixer value | |
304 | */ | |
305 | ||
6bc170e4 DM |
306 | static int get_ctl_value_v1(struct usb_mixer_elem_info *cval, int request, |
307 | int validx, int *value_ret) | |
1da177e4 | 308 | { |
3360b84b | 309 | struct snd_usb_audio *chip = cval->head.mixer->chip; |
1da177e4 LT |
310 | unsigned char buf[2]; |
311 | int val_len = cval->val_type >= USB_MIXER_S16 ? 2 : 1; | |
312 | int timeout = 10; | |
978520b7 | 313 | int idx = 0, err; |
1da177e4 | 314 | |
47ab1545 | 315 | err = snd_usb_lock_shutdown(chip); |
88a8516a ON |
316 | if (err < 0) |
317 | return -EIO; | |
6bc170e4 | 318 | |
1da177e4 | 319 | while (timeout-- > 0) { |
3360b84b | 320 | idx = snd_usb_ctrl_intf(chip) | (cval->head.id << 8); |
5a9a8eca SB |
321 | err = snd_usb_ctl_msg(chip->dev, usb_rcvctrlpipe(chip->dev, 0), request, |
322 | USB_RECIP_INTERFACE | USB_TYPE_CLASS | USB_DIR_IN, | |
323 | validx, idx, buf, val_len); | |
324 | if (err >= val_len) { | |
1da177e4 | 325 | *value_ret = convert_signed_value(cval, snd_usb_combine_bytes(buf, val_len)); |
978520b7 TI |
326 | err = 0; |
327 | goto out; | |
5a9a8eca SB |
328 | } else if (err == -ETIMEDOUT) { |
329 | goto out; | |
1da177e4 LT |
330 | } |
331 | } | |
0ba41d91 TI |
332 | usb_audio_dbg(chip, |
333 | "cannot get ctl value: req = %#x, wValue = %#x, wIndex = %#x, type = %d\n", | |
334 | request, validx, idx, cval->val_type); | |
978520b7 TI |
335 | err = -EINVAL; |
336 | ||
337 | out: | |
47ab1545 | 338 | snd_usb_unlock_shutdown(chip); |
978520b7 | 339 | return err; |
1da177e4 LT |
340 | } |
341 | ||
6bc170e4 DM |
342 | static int get_ctl_value_v2(struct usb_mixer_elem_info *cval, int request, |
343 | int validx, int *value_ret) | |
23caaf19 | 344 | { |
3360b84b | 345 | struct snd_usb_audio *chip = cval->head.mixer->chip; |
bc18e31c | 346 | unsigned char buf[4 + 3 * sizeof(__u32)]; /* enough space for one range */ |
23caaf19 | 347 | unsigned char *val; |
978520b7 | 348 | int idx = 0, ret, size; |
23caaf19 DM |
349 | __u8 bRequest; |
350 | ||
e8bdb6bb DM |
351 | if (request == UAC_GET_CUR) { |
352 | bRequest = UAC2_CS_CUR; | |
bc18e31c | 353 | size = uac2_ctl_value_size(cval->val_type); |
e8bdb6bb DM |
354 | } else { |
355 | bRequest = UAC2_CS_RANGE; | |
356 | size = sizeof(buf); | |
357 | } | |
358 | ||
359 | memset(buf, 0, sizeof(buf)); | |
23caaf19 | 360 | |
47ab1545 | 361 | ret = snd_usb_lock_shutdown(chip) ? -EIO : 0; |
88a8516a ON |
362 | if (ret) |
363 | goto error; | |
364 | ||
47ab1545 TI |
365 | idx = snd_usb_ctrl_intf(chip) | (cval->head.id << 8); |
366 | ret = snd_usb_ctl_msg(chip->dev, usb_rcvctrlpipe(chip->dev, 0), bRequest, | |
23caaf19 | 367 | USB_RECIP_INTERFACE | USB_TYPE_CLASS | USB_DIR_IN, |
978520b7 | 368 | validx, idx, buf, size); |
47ab1545 | 369 | snd_usb_unlock_shutdown(chip); |
23caaf19 DM |
370 | |
371 | if (ret < 0) { | |
88a8516a | 372 | error: |
0ba41d91 TI |
373 | usb_audio_err(chip, |
374 | "cannot get ctl value: req = %#x, wValue = %#x, wIndex = %#x, type = %d\n", | |
375 | request, validx, idx, cval->val_type); | |
23caaf19 DM |
376 | return ret; |
377 | } | |
378 | ||
e8bdb6bb DM |
379 | /* FIXME: how should we handle multiple triplets here? */ |
380 | ||
23caaf19 DM |
381 | switch (request) { |
382 | case UAC_GET_CUR: | |
383 | val = buf; | |
384 | break; | |
385 | case UAC_GET_MIN: | |
386 | val = buf + sizeof(__u16); | |
387 | break; | |
388 | case UAC_GET_MAX: | |
389 | val = buf + sizeof(__u16) * 2; | |
390 | break; | |
391 | case UAC_GET_RES: | |
392 | val = buf + sizeof(__u16) * 3; | |
393 | break; | |
394 | default: | |
395 | return -EINVAL; | |
396 | } | |
397 | ||
398 | *value_ret = convert_signed_value(cval, snd_usb_combine_bytes(val, sizeof(__u16))); | |
399 | ||
400 | return 0; | |
401 | } | |
402 | ||
6bc170e4 DM |
403 | static int get_ctl_value(struct usb_mixer_elem_info *cval, int request, |
404 | int validx, int *value_ret) | |
23caaf19 | 405 | { |
9f814105 EZ |
406 | validx += cval->idx_off; |
407 | ||
3360b84b | 408 | return (cval->head.mixer->protocol == UAC_VERSION_1) ? |
23caaf19 DM |
409 | get_ctl_value_v1(cval, request, validx, value_ret) : |
410 | get_ctl_value_v2(cval, request, validx, value_ret); | |
411 | } | |
412 | ||
6bc170e4 DM |
413 | static int get_cur_ctl_value(struct usb_mixer_elem_info *cval, |
414 | int validx, int *value) | |
1da177e4 | 415 | { |
de48c7bc | 416 | return get_ctl_value(cval, UAC_GET_CUR, validx, value); |
1da177e4 LT |
417 | } |
418 | ||
419 | /* channel = 0: master, 1 = first channel */ | |
641b4879 TI |
420 | static inline int get_cur_mix_raw(struct usb_mixer_elem_info *cval, |
421 | int channel, int *value) | |
1da177e4 | 422 | { |
6bc170e4 DM |
423 | return get_ctl_value(cval, UAC_GET_CUR, |
424 | (cval->control << 8) | channel, | |
425 | value); | |
1da177e4 LT |
426 | } |
427 | ||
eef90451 | 428 | int snd_usb_get_cur_mix_value(struct usb_mixer_elem_info *cval, |
641b4879 TI |
429 | int channel, int index, int *value) |
430 | { | |
431 | int err; | |
432 | ||
433 | if (cval->cached & (1 << channel)) { | |
434 | *value = cval->cache_val[index]; | |
435 | return 0; | |
436 | } | |
437 | err = get_cur_mix_raw(cval, channel, value); | |
438 | if (err < 0) { | |
3360b84b TI |
439 | if (!cval->head.mixer->ignore_ctl_error) |
440 | usb_audio_dbg(cval->head.mixer->chip, | |
0ba41d91 | 441 | "cannot get current value for control %d ch %d: err = %d\n", |
6bc170e4 | 442 | cval->control, channel, err); |
641b4879 TI |
443 | return err; |
444 | } | |
445 | cval->cached |= 1 << channel; | |
446 | cval->cache_val[index] = *value; | |
447 | return 0; | |
448 | } | |
449 | ||
1da177e4 LT |
450 | /* |
451 | * set a mixer value | |
452 | */ | |
453 | ||
7b1eda22 DM |
454 | int snd_usb_mixer_set_ctl_value(struct usb_mixer_elem_info *cval, |
455 | int request, int validx, int value_set) | |
1da177e4 | 456 | { |
3360b84b | 457 | struct snd_usb_audio *chip = cval->head.mixer->chip; |
bc18e31c | 458 | unsigned char buf[4]; |
978520b7 | 459 | int idx = 0, val_len, err, timeout = 10; |
23caaf19 | 460 | |
9f814105 EZ |
461 | validx += cval->idx_off; |
462 | ||
3360b84b | 463 | if (cval->head.mixer->protocol == UAC_VERSION_1) { |
23caaf19 DM |
464 | val_len = cval->val_type >= USB_MIXER_S16 ? 2 : 1; |
465 | } else { /* UAC_VERSION_2 */ | |
bc18e31c | 466 | val_len = uac2_ctl_value_size(cval->val_type); |
23caaf19 DM |
467 | |
468 | /* FIXME */ | |
469 | if (request != UAC_SET_CUR) { | |
0ba41d91 | 470 | usb_audio_dbg(chip, "RANGE setting not yet supported\n"); |
23caaf19 DM |
471 | return -EINVAL; |
472 | } | |
473 | ||
474 | request = UAC2_CS_CUR; | |
475 | } | |
1da177e4 LT |
476 | |
477 | value_set = convert_bytes_value(cval, value_set); | |
478 | buf[0] = value_set & 0xff; | |
479 | buf[1] = (value_set >> 8) & 0xff; | |
bc18e31c JS |
480 | buf[2] = (value_set >> 16) & 0xff; |
481 | buf[3] = (value_set >> 24) & 0xff; | |
47ab1545 TI |
482 | |
483 | err = snd_usb_lock_shutdown(chip); | |
88a8516a ON |
484 | if (err < 0) |
485 | return -EIO; | |
47ab1545 | 486 | |
978520b7 | 487 | while (timeout-- > 0) { |
3360b84b | 488 | idx = snd_usb_ctrl_intf(chip) | (cval->head.id << 8); |
5a9a8eca SB |
489 | err = snd_usb_ctl_msg(chip->dev, |
490 | usb_sndctrlpipe(chip->dev, 0), request, | |
491 | USB_RECIP_INTERFACE | USB_TYPE_CLASS | USB_DIR_OUT, | |
492 | validx, idx, buf, val_len); | |
493 | if (err >= 0) { | |
978520b7 TI |
494 | err = 0; |
495 | goto out; | |
5a9a8eca SB |
496 | } else if (err == -ETIMEDOUT) { |
497 | goto out; | |
88a8516a | 498 | } |
978520b7 | 499 | } |
0ba41d91 | 500 | usb_audio_dbg(chip, "cannot set ctl value: req = %#x, wValue = %#x, wIndex = %#x, type = %d, data = %#x/%#x\n", |
6bc170e4 | 501 | request, validx, idx, cval->val_type, buf[0], buf[1]); |
978520b7 TI |
502 | err = -EINVAL; |
503 | ||
504 | out: | |
47ab1545 | 505 | snd_usb_unlock_shutdown(chip); |
978520b7 | 506 | return err; |
1da177e4 LT |
507 | } |
508 | ||
6bc170e4 DM |
509 | static int set_cur_ctl_value(struct usb_mixer_elem_info *cval, |
510 | int validx, int value) | |
1da177e4 | 511 | { |
7b1eda22 | 512 | return snd_usb_mixer_set_ctl_value(cval, UAC_SET_CUR, validx, value); |
1da177e4 LT |
513 | } |
514 | ||
eef90451 | 515 | int snd_usb_set_cur_mix_value(struct usb_mixer_elem_info *cval, int channel, |
641b4879 | 516 | int index, int value) |
1da177e4 | 517 | { |
641b4879 | 518 | int err; |
a6a33259 DM |
519 | unsigned int read_only = (channel == 0) ? |
520 | cval->master_readonly : | |
521 | cval->ch_readonly & (1 << (channel - 1)); | |
522 | ||
523 | if (read_only) { | |
3360b84b | 524 | usb_audio_dbg(cval->head.mixer->chip, |
0ba41d91 | 525 | "%s(): channel %d of control %d is read_only\n", |
a6a33259 DM |
526 | __func__, channel, cval->control); |
527 | return 0; | |
528 | } | |
529 | ||
6bc170e4 DM |
530 | err = snd_usb_mixer_set_ctl_value(cval, |
531 | UAC_SET_CUR, (cval->control << 8) | channel, | |
532 | value); | |
641b4879 TI |
533 | if (err < 0) |
534 | return err; | |
535 | cval->cached |= 1 << channel; | |
536 | cval->cache_val[index] = value; | |
537 | return 0; | |
1da177e4 LT |
538 | } |
539 | ||
7bc5ba7e TI |
540 | /* |
541 | * TLV callback for mixer volume controls | |
542 | */ | |
285de9c0 | 543 | int snd_usb_mixer_vol_tlv(struct snd_kcontrol *kcontrol, int op_flag, |
7bc5ba7e TI |
544 | unsigned int size, unsigned int __user *_tlv) |
545 | { | |
546 | struct usb_mixer_elem_info *cval = kcontrol->private_data; | |
b8e1c73f | 547 | DECLARE_TLV_DB_MINMAX(scale, 0, 0); |
7bc5ba7e TI |
548 | |
549 | if (size < sizeof(scale)) | |
550 | return -ENOMEM; | |
0f174b35 TI |
551 | if (cval->min_mute) |
552 | scale[0] = SNDRV_CTL_TLVT_DB_MINMAX_MUTE; | |
c3a3e040 JK |
553 | scale[2] = cval->dBmin; |
554 | scale[3] = cval->dBmax; | |
7bc5ba7e TI |
555 | if (copy_to_user(_tlv, scale, sizeof(scale))) |
556 | return -EFAULT; | |
557 | return 0; | |
558 | } | |
1da177e4 LT |
559 | |
560 | /* | |
561 | * parser routines begin here... | |
562 | */ | |
563 | ||
86e07d34 | 564 | static int parse_audio_unit(struct mixer_build *state, int unitid); |
1da177e4 LT |
565 | |
566 | ||
567 | /* | |
568 | * check if the input/output channel routing is enabled on the given bitmap. | |
569 | * used for mixer unit parser | |
570 | */ | |
6bc170e4 DM |
571 | static int check_matrix_bitmap(unsigned char *bmap, |
572 | int ich, int och, int num_outs) | |
1da177e4 LT |
573 | { |
574 | int idx = ich * num_outs + och; | |
575 | return bmap[idx >> 3] & (0x80 >> (idx & 7)); | |
576 | } | |
577 | ||
1da177e4 LT |
578 | /* |
579 | * add an alsa control element | |
580 | * search and increment the index until an empty slot is found. | |
581 | * | |
582 | * if failed, give up and free the control instance. | |
583 | */ | |
584 | ||
3360b84b | 585 | int snd_usb_mixer_add_control(struct usb_mixer_elem_list *list, |
ef9d5970 | 586 | struct snd_kcontrol *kctl) |
1da177e4 | 587 | { |
3360b84b | 588 | struct usb_mixer_interface *mixer = list->mixer; |
1da177e4 | 589 | int err; |
84957a8a | 590 | |
ef9d5970 | 591 | while (snd_ctl_find_id(mixer->chip->card, &kctl->id)) |
1da177e4 | 592 | kctl->id.index++; |
ef9d5970 | 593 | if ((err = snd_ctl_add(mixer->chip->card, kctl)) < 0) { |
6bc170e4 DM |
594 | usb_audio_dbg(mixer->chip, "cannot add control (err = %d)\n", |
595 | err); | |
6639b6c2 | 596 | return err; |
1da177e4 | 597 | } |
3360b84b TI |
598 | list->kctl = kctl; |
599 | list->next_id_elem = mixer->id_elems[list->id]; | |
600 | mixer->id_elems[list->id] = list; | |
6639b6c2 | 601 | return 0; |
1da177e4 LT |
602 | } |
603 | ||
1da177e4 LT |
604 | /* |
605 | * get a terminal name string | |
606 | */ | |
607 | ||
608 | static struct iterm_name_combo { | |
609 | int type; | |
610 | char *name; | |
611 | } iterm_names[] = { | |
612 | { 0x0300, "Output" }, | |
613 | { 0x0301, "Speaker" }, | |
614 | { 0x0302, "Headphone" }, | |
615 | { 0x0303, "HMD Audio" }, | |
616 | { 0x0304, "Desktop Speaker" }, | |
617 | { 0x0305, "Room Speaker" }, | |
618 | { 0x0306, "Com Speaker" }, | |
619 | { 0x0307, "LFE" }, | |
620 | { 0x0600, "External In" }, | |
621 | { 0x0601, "Analog In" }, | |
622 | { 0x0602, "Digital In" }, | |
623 | { 0x0603, "Line" }, | |
624 | { 0x0604, "Legacy In" }, | |
625 | { 0x0605, "IEC958 In" }, | |
626 | { 0x0606, "1394 DA Stream" }, | |
627 | { 0x0607, "1394 DV Stream" }, | |
628 | { 0x0700, "Embedded" }, | |
629 | { 0x0701, "Noise Source" }, | |
630 | { 0x0702, "Equalization Noise" }, | |
631 | { 0x0703, "CD" }, | |
632 | { 0x0704, "DAT" }, | |
633 | { 0x0705, "DCC" }, | |
634 | { 0x0706, "MiniDisk" }, | |
635 | { 0x0707, "Analog Tape" }, | |
636 | { 0x0708, "Phonograph" }, | |
637 | { 0x0709, "VCR Audio" }, | |
638 | { 0x070a, "Video Disk Audio" }, | |
639 | { 0x070b, "DVD Audio" }, | |
640 | { 0x070c, "TV Tuner Audio" }, | |
641 | { 0x070d, "Satellite Rec Audio" }, | |
642 | { 0x070e, "Cable Tuner Audio" }, | |
643 | { 0x070f, "DSS Audio" }, | |
644 | { 0x0710, "Radio Receiver" }, | |
645 | { 0x0711, "Radio Transmitter" }, | |
646 | { 0x0712, "Multi-Track Recorder" }, | |
647 | { 0x0713, "Synthesizer" }, | |
648 | { 0 }, | |
649 | }; | |
650 | ||
86e07d34 | 651 | static int get_term_name(struct mixer_build *state, struct usb_audio_term *iterm, |
1da177e4 LT |
652 | unsigned char *name, int maxlen, int term_only) |
653 | { | |
654 | struct iterm_name_combo *names; | |
655 | ||
656 | if (iterm->name) | |
6bc170e4 DM |
657 | return snd_usb_copy_string_desc(state, iterm->name, |
658 | name, maxlen); | |
1da177e4 LT |
659 | |
660 | /* virtual type - not a real terminal */ | |
661 | if (iterm->type >> 16) { | |
662 | if (term_only) | |
663 | return 0; | |
664 | switch (iterm->type >> 16) { | |
de48c7bc | 665 | case UAC_SELECTOR_UNIT: |
6bc170e4 DM |
666 | strcpy(name, "Selector"); |
667 | return 8; | |
69da9bcb | 668 | case UAC1_PROCESSING_UNIT: |
6bc170e4 DM |
669 | strcpy(name, "Process Unit"); |
670 | return 12; | |
69da9bcb | 671 | case UAC1_EXTENSION_UNIT: |
6bc170e4 DM |
672 | strcpy(name, "Ext Unit"); |
673 | return 8; | |
de48c7bc | 674 | case UAC_MIXER_UNIT: |
6bc170e4 DM |
675 | strcpy(name, "Mixer"); |
676 | return 5; | |
1da177e4 LT |
677 | default: |
678 | return sprintf(name, "Unit %d", iterm->id); | |
679 | } | |
680 | } | |
681 | ||
682 | switch (iterm->type & 0xff00) { | |
683 | case 0x0100: | |
6bc170e4 DM |
684 | strcpy(name, "PCM"); |
685 | return 3; | |
1da177e4 | 686 | case 0x0200: |
6bc170e4 DM |
687 | strcpy(name, "Mic"); |
688 | return 3; | |
1da177e4 | 689 | case 0x0400: |
6bc170e4 DM |
690 | strcpy(name, "Headset"); |
691 | return 7; | |
1da177e4 | 692 | case 0x0500: |
6bc170e4 DM |
693 | strcpy(name, "Phone"); |
694 | return 5; | |
1da177e4 LT |
695 | } |
696 | ||
6bc170e4 | 697 | for (names = iterm_names; names->type; names++) { |
1da177e4 LT |
698 | if (names->type == iterm->type) { |
699 | strcpy(name, names->name); | |
700 | return strlen(names->name); | |
701 | } | |
6bc170e4 DM |
702 | } |
703 | ||
1da177e4 LT |
704 | return 0; |
705 | } | |
706 | ||
1da177e4 LT |
707 | /* |
708 | * parse the source unit recursively until it reaches to a terminal | |
709 | * or a branched unit. | |
710 | */ | |
6bc170e4 DM |
711 | static int check_input_term(struct mixer_build *state, int id, |
712 | struct usb_audio_term *term) | |
1da177e4 | 713 | { |
09414207 | 714 | int err; |
23caaf19 | 715 | void *p1; |
1da177e4 LT |
716 | |
717 | memset(term, 0, sizeof(*term)); | |
718 | while ((p1 = find_audio_control_unit(state, id)) != NULL) { | |
23caaf19 | 719 | unsigned char *hdr = p1; |
1da177e4 | 720 | term->id = id; |
23caaf19 | 721 | switch (hdr[2]) { |
de48c7bc | 722 | case UAC_INPUT_TERMINAL: |
23caaf19 DM |
723 | if (state->mixer->protocol == UAC_VERSION_1) { |
724 | struct uac_input_terminal_descriptor *d = p1; | |
725 | term->type = le16_to_cpu(d->wTerminalType); | |
726 | term->channels = d->bNrChannels; | |
727 | term->chconfig = le16_to_cpu(d->wChannelConfig); | |
728 | term->name = d->iTerminal; | |
729 | } else { /* UAC_VERSION_2 */ | |
730 | struct uac2_input_terminal_descriptor *d = p1; | |
09414207 | 731 | |
9430e547 JS |
732 | /* call recursively to verify that the |
733 | * referenced clock entity is valid */ | |
09414207 DM |
734 | err = check_input_term(state, d->bCSourceID, term); |
735 | if (err < 0) | |
736 | return err; | |
9430e547 JS |
737 | |
738 | /* save input term properties after recursion, | |
739 | * to ensure they are not overriden by the | |
740 | * recursion calls */ | |
741 | term->id = id; | |
742 | term->type = le16_to_cpu(d->wTerminalType); | |
743 | term->channels = d->bNrChannels; | |
744 | term->chconfig = le32_to_cpu(d->bmChannelConfig); | |
745 | term->name = d->iTerminal; | |
23caaf19 | 746 | } |
1da177e4 | 747 | return 0; |
23caaf19 DM |
748 | case UAC_FEATURE_UNIT: { |
749 | /* the header is the same for v1 and v2 */ | |
750 | struct uac_feature_unit_descriptor *d = p1; | |
5e688883 | 751 | id = d->bSourceID; |
1da177e4 | 752 | break; /* continue to parse */ |
23caaf19 DM |
753 | } |
754 | case UAC_MIXER_UNIT: { | |
755 | struct uac_mixer_unit_descriptor *d = p1; | |
756 | term->type = d->bDescriptorSubtype << 16; /* virtual type */ | |
757 | term->channels = uac_mixer_unit_bNrChannels(d); | |
758 | term->chconfig = uac_mixer_unit_wChannelConfig(d, state->mixer->protocol); | |
759 | term->name = uac_mixer_unit_iMixer(d); | |
1da177e4 | 760 | return 0; |
23caaf19 | 761 | } |
09414207 DM |
762 | case UAC_SELECTOR_UNIT: |
763 | case UAC2_CLOCK_SELECTOR: { | |
23caaf19 | 764 | struct uac_selector_unit_descriptor *d = p1; |
1da177e4 | 765 | /* call recursively to retrieve the channel info */ |
4d7b86c9 DM |
766 | err = check_input_term(state, d->baSourceID[0], term); |
767 | if (err < 0) | |
768 | return err; | |
23caaf19 | 769 | term->type = d->bDescriptorSubtype << 16; /* virtual type */ |
1da177e4 | 770 | term->id = id; |
23caaf19 | 771 | term->name = uac_selector_unit_iSelector(d); |
1da177e4 | 772 | return 0; |
23caaf19 | 773 | } |
69da9bcb | 774 | case UAC1_PROCESSING_UNIT: |
5dae5fd2 EZ |
775 | case UAC1_EXTENSION_UNIT: |
776 | /* UAC2_PROCESSING_UNIT_V2 */ | |
61ac5130 TH |
777 | /* UAC2_EFFECT_UNIT */ |
778 | case UAC2_EXTENSION_UNIT_V2: { | |
23caaf19 | 779 | struct uac_processing_unit_descriptor *d = p1; |
5dae5fd2 EZ |
780 | |
781 | if (state->mixer->protocol == UAC_VERSION_2 && | |
782 | hdr[2] == UAC2_EFFECT_UNIT) { | |
783 | /* UAC2/UAC1 unit IDs overlap here in an | |
784 | * uncompatible way. Ignore this unit for now. | |
785 | */ | |
786 | return 0; | |
787 | } | |
788 | ||
23caaf19 DM |
789 | if (d->bNrInPins) { |
790 | id = d->baSourceID[0]; | |
1da177e4 LT |
791 | break; /* continue to parse */ |
792 | } | |
23caaf19 DM |
793 | term->type = d->bDescriptorSubtype << 16; /* virtual type */ |
794 | term->channels = uac_processing_unit_bNrChannels(d); | |
795 | term->chconfig = uac_processing_unit_wChannelConfig(d, state->mixer->protocol); | |
796 | term->name = uac_processing_unit_iProcessing(d, state->mixer->protocol); | |
1da177e4 | 797 | return 0; |
23caaf19 | 798 | } |
09414207 DM |
799 | case UAC2_CLOCK_SOURCE: { |
800 | struct uac_clock_source_descriptor *d = p1; | |
801 | term->type = d->bDescriptorSubtype << 16; /* virtual type */ | |
802 | term->id = id; | |
803 | term->name = d->iClockSource; | |
804 | return 0; | |
805 | } | |
1da177e4 LT |
806 | default: |
807 | return -ENODEV; | |
808 | } | |
809 | } | |
810 | return -ENODEV; | |
811 | } | |
812 | ||
1da177e4 LT |
813 | /* |
814 | * Feature Unit | |
815 | */ | |
816 | ||
817 | /* feature unit control information */ | |
818 | struct usb_feature_control_info { | |
819 | const char *name; | |
bc18e31c JS |
820 | int type; /* data type for uac1 */ |
821 | int type_uac2; /* data type for uac2 if different from uac1, else -1 */ | |
1da177e4 LT |
822 | }; |
823 | ||
824 | static struct usb_feature_control_info audio_feature_info[] = { | |
bc18e31c JS |
825 | { "Mute", USB_MIXER_INV_BOOLEAN, -1 }, |
826 | { "Volume", USB_MIXER_S16, -1 }, | |
827 | { "Tone Control - Bass", USB_MIXER_S8, -1 }, | |
828 | { "Tone Control - Mid", USB_MIXER_S8, -1 }, | |
829 | { "Tone Control - Treble", USB_MIXER_S8, -1 }, | |
830 | { "Graphic Equalizer", USB_MIXER_S8, -1 }, /* FIXME: not implemeted yet */ | |
831 | { "Auto Gain Control", USB_MIXER_BOOLEAN, -1 }, | |
832 | { "Delay Control", USB_MIXER_U16, USB_MIXER_U32 }, | |
833 | { "Bass Boost", USB_MIXER_BOOLEAN, -1 }, | |
834 | { "Loudness", USB_MIXER_BOOLEAN, -1 }, | |
2e0281d1 | 835 | /* UAC2 specific */ |
bc18e31c JS |
836 | { "Input Gain Control", USB_MIXER_S16, -1 }, |
837 | { "Input Gain Pad Control", USB_MIXER_S16, -1 }, | |
838 | { "Phase Inverter Control", USB_MIXER_BOOLEAN, -1 }, | |
1da177e4 LT |
839 | }; |
840 | ||
1da177e4 | 841 | /* private_free callback */ |
eef90451 | 842 | void snd_usb_mixer_elem_free(struct snd_kcontrol *kctl) |
1da177e4 | 843 | { |
4d572776 JJ |
844 | kfree(kctl->private_data); |
845 | kctl->private_data = NULL; | |
1da177e4 LT |
846 | } |
847 | ||
1da177e4 LT |
848 | /* |
849 | * interface to ALSA control for feature/mixer units | |
850 | */ | |
851 | ||
dcaaf9f2 TI |
852 | /* volume control quirks */ |
853 | static void volume_control_quirks(struct usb_mixer_elem_info *cval, | |
854 | struct snd_kcontrol *kctl) | |
855 | { | |
3360b84b | 856 | struct snd_usb_audio *chip = cval->head.mixer->chip; |
0ba41d91 | 857 | switch (chip->usb_id) { |
d50ed624 | 858 | case USB_ID(0x0763, 0x2030): /* M-Audio Fast Track C400 */ |
e9a25e04 | 859 | case USB_ID(0x0763, 0x2031): /* M-Audio Fast Track C600 */ |
d50ed624 EZ |
860 | if (strcmp(kctl->id.name, "Effect Duration") == 0) { |
861 | cval->min = 0x0000; | |
862 | cval->max = 0xffff; | |
863 | cval->res = 0x00e6; | |
864 | break; | |
865 | } | |
866 | if (strcmp(kctl->id.name, "Effect Volume") == 0 || | |
867 | strcmp(kctl->id.name, "Effect Feedback Volume") == 0) { | |
868 | cval->min = 0x00; | |
869 | cval->max = 0xff; | |
870 | break; | |
871 | } | |
872 | if (strstr(kctl->id.name, "Effect Return") != NULL) { | |
873 | cval->min = 0xb706; | |
874 | cval->max = 0xff7b; | |
875 | cval->res = 0x0073; | |
876 | break; | |
877 | } | |
878 | if ((strstr(kctl->id.name, "Playback Volume") != NULL) || | |
879 | (strstr(kctl->id.name, "Effect Send") != NULL)) { | |
880 | cval->min = 0xb5fb; /* -73 dB = 0xb6ff */ | |
881 | cval->max = 0xfcfe; | |
882 | cval->res = 0x0073; | |
883 | } | |
884 | break; | |
885 | ||
d34bf148 FH |
886 | case USB_ID(0x0763, 0x2081): /* M-Audio Fast Track Ultra 8R */ |
887 | case USB_ID(0x0763, 0x2080): /* M-Audio Fast Track Ultra */ | |
888 | if (strcmp(kctl->id.name, "Effect Duration") == 0) { | |
0ba41d91 TI |
889 | usb_audio_info(chip, |
890 | "set quirk for FTU Effect Duration\n"); | |
d34bf148 FH |
891 | cval->min = 0x0000; |
892 | cval->max = 0x7f00; | |
893 | cval->res = 0x0100; | |
894 | break; | |
895 | } | |
896 | if (strcmp(kctl->id.name, "Effect Volume") == 0 || | |
897 | strcmp(kctl->id.name, "Effect Feedback Volume") == 0) { | |
0ba41d91 TI |
898 | usb_audio_info(chip, |
899 | "set quirks for FTU Effect Feedback/Volume\n"); | |
d34bf148 FH |
900 | cval->min = 0x00; |
901 | cval->max = 0x7f; | |
902 | break; | |
903 | } | |
904 | break; | |
905 | ||
dcaaf9f2 TI |
906 | case USB_ID(0x0471, 0x0101): |
907 | case USB_ID(0x0471, 0x0104): | |
908 | case USB_ID(0x0471, 0x0105): | |
909 | case USB_ID(0x0672, 0x1041): | |
910 | /* quirk for UDA1321/N101. | |
911 | * note that detection between firmware 2.1.1.7 (N101) | |
912 | * and later 2.1.1.21 is not very clear from datasheets. | |
913 | * I hope that the min value is -15360 for newer firmware --jk | |
914 | */ | |
915 | if (!strcmp(kctl->id.name, "PCM Playback Volume") && | |
916 | cval->min == -15616) { | |
0ba41d91 | 917 | usb_audio_info(chip, |
dcaaf9f2 TI |
918 | "set volume quirk for UDA1321/N101 chip\n"); |
919 | cval->max = -256; | |
920 | } | |
921 | break; | |
922 | ||
923 | case USB_ID(0x046d, 0x09a4): | |
924 | if (!strcmp(kctl->id.name, "Mic Capture Volume")) { | |
0ba41d91 | 925 | usb_audio_info(chip, |
dcaaf9f2 TI |
926 | "set volume quirk for QuickCam E3500\n"); |
927 | cval->min = 6080; | |
928 | cval->max = 8768; | |
929 | cval->res = 192; | |
930 | } | |
931 | break; | |
932 | ||
e805ca8b | 933 | case USB_ID(0x046d, 0x0807): /* Logitech Webcam C500 */ |
dcaaf9f2 TI |
934 | case USB_ID(0x046d, 0x0808): |
935 | case USB_ID(0x046d, 0x0809): | |
64559311 | 936 | case USB_ID(0x046d, 0x0819): /* Logitech Webcam C210 */ |
36691e1b | 937 | case USB_ID(0x046d, 0x081b): /* HD Webcam c310 */ |
55c0008b | 938 | case USB_ID(0x046d, 0x081d): /* HD Webcam c510 */ |
11e7064f | 939 | case USB_ID(0x046d, 0x0825): /* HD Webcam c270 */ |
140d37de | 940 | case USB_ID(0x046d, 0x0826): /* HD Webcam c525 */ |
1ef9f058 | 941 | case USB_ID(0x046d, 0x08ca): /* Logitech Quickcam Fusion */ |
dcaaf9f2 | 942 | case USB_ID(0x046d, 0x0991): |
82ffb6fc | 943 | case USB_ID(0x046d, 0x09a2): /* QuickCam Communicate Deluxe/S7500 */ |
dcaaf9f2 TI |
944 | /* Most audio usb devices lie about volume resolution. |
945 | * Most Logitech webcams have res = 384. | |
82ffb6fc | 946 | * Probably there is some logitech magic behind this number --fishor |
dcaaf9f2 TI |
947 | */ |
948 | if (!strcmp(kctl->id.name, "Mic Capture Volume")) { | |
0ba41d91 | 949 | usb_audio_info(chip, |
dcaaf9f2 TI |
950 | "set resolution quirk: cval->res = 384\n"); |
951 | cval->res = 384; | |
952 | } | |
953 | break; | |
dcaaf9f2 TI |
954 | } |
955 | } | |
956 | ||
1da177e4 LT |
957 | /* |
958 | * retrieve the minimum and maximum values for the specified control | |
959 | */ | |
dcaaf9f2 TI |
960 | static int get_min_max_with_quirks(struct usb_mixer_elem_info *cval, |
961 | int default_min, struct snd_kcontrol *kctl) | |
1da177e4 LT |
962 | { |
963 | /* for failsafe */ | |
964 | cval->min = default_min; | |
965 | cval->max = cval->min + 1; | |
966 | cval->res = 1; | |
c3a3e040 | 967 | cval->dBmin = cval->dBmax = 0; |
1da177e4 LT |
968 | |
969 | if (cval->val_type == USB_MIXER_BOOLEAN || | |
970 | cval->val_type == USB_MIXER_INV_BOOLEAN) { | |
971 | cval->initialized = 1; | |
972 | } else { | |
973 | int minchn = 0; | |
974 | if (cval->cmask) { | |
975 | int i; | |
976 | for (i = 0; i < MAX_CHANNELS; i++) | |
977 | if (cval->cmask & (1 << i)) { | |
978 | minchn = i + 1; | |
979 | break; | |
980 | } | |
981 | } | |
de48c7bc DM |
982 | if (get_ctl_value(cval, UAC_GET_MAX, (cval->control << 8) | minchn, &cval->max) < 0 || |
983 | get_ctl_value(cval, UAC_GET_MIN, (cval->control << 8) | minchn, &cval->min) < 0) { | |
3360b84b | 984 | usb_audio_err(cval->head.mixer->chip, |
0ba41d91 | 985 | "%d:%d: cannot get min/max values for control %d (id %d)\n", |
3360b84b TI |
986 | cval->head.id, snd_usb_ctrl_intf(cval->head.mixer->chip), |
987 | cval->control, cval->head.id); | |
1da177e4 LT |
988 | return -EINVAL; |
989 | } | |
6bc170e4 DM |
990 | if (get_ctl_value(cval, UAC_GET_RES, |
991 | (cval->control << 8) | minchn, | |
992 | &cval->res) < 0) { | |
1da177e4 LT |
993 | cval->res = 1; |
994 | } else { | |
995 | int last_valid_res = cval->res; | |
996 | ||
997 | while (cval->res > 1) { | |
7b1eda22 | 998 | if (snd_usb_mixer_set_ctl_value(cval, UAC_SET_RES, |
6bc170e4 DM |
999 | (cval->control << 8) | minchn, |
1000 | cval->res / 2) < 0) | |
1da177e4 LT |
1001 | break; |
1002 | cval->res /= 2; | |
1003 | } | |
6bc170e4 DM |
1004 | if (get_ctl_value(cval, UAC_GET_RES, |
1005 | (cval->control << 8) | minchn, &cval->res) < 0) | |
1da177e4 LT |
1006 | cval->res = last_valid_res; |
1007 | } | |
1008 | if (cval->res == 0) | |
1009 | cval->res = 1; | |
14790f1c TI |
1010 | |
1011 | /* Additional checks for the proper resolution | |
1012 | * | |
1013 | * Some devices report smaller resolutions than actually | |
1014 | * reacting. They don't return errors but simply clip | |
1015 | * to the lower aligned value. | |
1016 | */ | |
1017 | if (cval->min + cval->res < cval->max) { | |
1018 | int last_valid_res = cval->res; | |
1019 | int saved, test, check; | |
641b4879 | 1020 | get_cur_mix_raw(cval, minchn, &saved); |
14790f1c TI |
1021 | for (;;) { |
1022 | test = saved; | |
1023 | if (test < cval->max) | |
1024 | test += cval->res; | |
1025 | else | |
1026 | test -= cval->res; | |
1027 | if (test < cval->min || test > cval->max || | |
eef90451 | 1028 | snd_usb_set_cur_mix_value(cval, minchn, 0, test) || |
641b4879 | 1029 | get_cur_mix_raw(cval, minchn, &check)) { |
14790f1c TI |
1030 | cval->res = last_valid_res; |
1031 | break; | |
1032 | } | |
1033 | if (test == check) | |
1034 | break; | |
1035 | cval->res *= 2; | |
1036 | } | |
eef90451 | 1037 | snd_usb_set_cur_mix_value(cval, minchn, 0, saved); |
14790f1c TI |
1038 | } |
1039 | ||
1da177e4 LT |
1040 | cval->initialized = 1; |
1041 | } | |
c3a3e040 | 1042 | |
dcaaf9f2 TI |
1043 | if (kctl) |
1044 | volume_control_quirks(cval, kctl); | |
1045 | ||
c3a3e040 JK |
1046 | /* USB descriptions contain the dB scale in 1/256 dB unit |
1047 | * while ALSA TLV contains in 1/100 dB unit | |
1048 | */ | |
1049 | cval->dBmin = (convert_signed_value(cval, cval->min) * 100) / 256; | |
1050 | cval->dBmax = (convert_signed_value(cval, cval->max) * 100) / 256; | |
1051 | if (cval->dBmin > cval->dBmax) { | |
1052 | /* something is wrong; assume it's either from/to 0dB */ | |
1053 | if (cval->dBmin < 0) | |
1054 | cval->dBmax = 0; | |
1055 | else if (cval->dBmin > 0) | |
1056 | cval->dBmin = 0; | |
1057 | if (cval->dBmin > cval->dBmax) { | |
1058 | /* totally crap, return an error */ | |
1059 | return -EINVAL; | |
1060 | } | |
1061 | } | |
1062 | ||
1da177e4 LT |
1063 | return 0; |
1064 | } | |
1065 | ||
dcaaf9f2 | 1066 | #define get_min_max(cval, def) get_min_max_with_quirks(cval, def, NULL) |
1da177e4 LT |
1067 | |
1068 | /* get a feature/mixer unit info */ | |
6bc170e4 DM |
1069 | static int mixer_ctl_feature_info(struct snd_kcontrol *kcontrol, |
1070 | struct snd_ctl_elem_info *uinfo) | |
1da177e4 | 1071 | { |
86e07d34 | 1072 | struct usb_mixer_elem_info *cval = kcontrol->private_data; |
1da177e4 LT |
1073 | |
1074 | if (cval->val_type == USB_MIXER_BOOLEAN || | |
1075 | cval->val_type == USB_MIXER_INV_BOOLEAN) | |
1076 | uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN; | |
1077 | else | |
1078 | uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER; | |
1079 | uinfo->count = cval->channels; | |
1080 | if (cval->val_type == USB_MIXER_BOOLEAN || | |
1081 | cval->val_type == USB_MIXER_INV_BOOLEAN) { | |
1082 | uinfo->value.integer.min = 0; | |
1083 | uinfo->value.integer.max = 1; | |
1084 | } else { | |
9fcd0ab1 | 1085 | if (!cval->initialized) { |
dcaaf9f2 | 1086 | get_min_max_with_quirks(cval, 0, kcontrol); |
9fcd0ab1 TI |
1087 | if (cval->initialized && cval->dBmin >= cval->dBmax) { |
1088 | kcontrol->vd[0].access &= | |
1089 | ~(SNDRV_CTL_ELEM_ACCESS_TLV_READ | | |
1090 | SNDRV_CTL_ELEM_ACCESS_TLV_CALLBACK); | |
3360b84b | 1091 | snd_ctl_notify(cval->head.mixer->chip->card, |
9fcd0ab1 TI |
1092 | SNDRV_CTL_EVENT_MASK_INFO, |
1093 | &kcontrol->id); | |
1094 | } | |
1095 | } | |
1da177e4 | 1096 | uinfo->value.integer.min = 0; |
14790f1c TI |
1097 | uinfo->value.integer.max = |
1098 | (cval->max - cval->min + cval->res - 1) / cval->res; | |
1da177e4 LT |
1099 | } |
1100 | return 0; | |
1101 | } | |
1102 | ||
1103 | /* get the current value from feature/mixer unit */ | |
6bc170e4 DM |
1104 | static int mixer_ctl_feature_get(struct snd_kcontrol *kcontrol, |
1105 | struct snd_ctl_elem_value *ucontrol) | |
1da177e4 | 1106 | { |
86e07d34 | 1107 | struct usb_mixer_elem_info *cval = kcontrol->private_data; |
1da177e4 LT |
1108 | int c, cnt, val, err; |
1109 | ||
641b4879 | 1110 | ucontrol->value.integer.value[0] = cval->min; |
1da177e4 LT |
1111 | if (cval->cmask) { |
1112 | cnt = 0; | |
1113 | for (c = 0; c < MAX_CHANNELS; c++) { | |
641b4879 TI |
1114 | if (!(cval->cmask & (1 << c))) |
1115 | continue; | |
eef90451 | 1116 | err = snd_usb_get_cur_mix_value(cval, c + 1, cnt, &val); |
641b4879 | 1117 | if (err < 0) |
5aeee342 | 1118 | return filter_error(cval, err); |
641b4879 TI |
1119 | val = get_relative_value(cval, val); |
1120 | ucontrol->value.integer.value[cnt] = val; | |
1121 | cnt++; | |
1da177e4 | 1122 | } |
641b4879 | 1123 | return 0; |
1da177e4 LT |
1124 | } else { |
1125 | /* master channel */ | |
eef90451 | 1126 | err = snd_usb_get_cur_mix_value(cval, 0, 0, &val); |
641b4879 | 1127 | if (err < 0) |
5aeee342 | 1128 | return filter_error(cval, err); |
1da177e4 LT |
1129 | val = get_relative_value(cval, val); |
1130 | ucontrol->value.integer.value[0] = val; | |
1131 | } | |
1132 | return 0; | |
1133 | } | |
1134 | ||
1135 | /* put the current value to feature/mixer unit */ | |
6bc170e4 DM |
1136 | static int mixer_ctl_feature_put(struct snd_kcontrol *kcontrol, |
1137 | struct snd_ctl_elem_value *ucontrol) | |
1da177e4 | 1138 | { |
86e07d34 | 1139 | struct usb_mixer_elem_info *cval = kcontrol->private_data; |
1da177e4 LT |
1140 | int c, cnt, val, oval, err; |
1141 | int changed = 0; | |
1142 | ||
1143 | if (cval->cmask) { | |
1144 | cnt = 0; | |
1145 | for (c = 0; c < MAX_CHANNELS; c++) { | |
641b4879 TI |
1146 | if (!(cval->cmask & (1 << c))) |
1147 | continue; | |
eef90451 | 1148 | err = snd_usb_get_cur_mix_value(cval, c + 1, cnt, &oval); |
641b4879 | 1149 | if (err < 0) |
5aeee342 | 1150 | return filter_error(cval, err); |
641b4879 TI |
1151 | val = ucontrol->value.integer.value[cnt]; |
1152 | val = get_abs_value(cval, val); | |
1153 | if (oval != val) { | |
eef90451 | 1154 | snd_usb_set_cur_mix_value(cval, c + 1, cnt, val); |
641b4879 | 1155 | changed = 1; |
1da177e4 | 1156 | } |
641b4879 | 1157 | cnt++; |
1da177e4 LT |
1158 | } |
1159 | } else { | |
1160 | /* master channel */ | |
eef90451 | 1161 | err = snd_usb_get_cur_mix_value(cval, 0, 0, &oval); |
1da177e4 | 1162 | if (err < 0) |
5aeee342 | 1163 | return filter_error(cval, err); |
1da177e4 LT |
1164 | val = ucontrol->value.integer.value[0]; |
1165 | val = get_abs_value(cval, val); | |
1166 | if (val != oval) { | |
eef90451 | 1167 | snd_usb_set_cur_mix_value(cval, 0, 0, val); |
1da177e4 LT |
1168 | changed = 1; |
1169 | } | |
1170 | } | |
1171 | return changed; | |
1172 | } | |
1173 | ||
86e07d34 | 1174 | static struct snd_kcontrol_new usb_feature_unit_ctl = { |
1da177e4 LT |
1175 | .iface = SNDRV_CTL_ELEM_IFACE_MIXER, |
1176 | .name = "", /* will be filled later manually */ | |
1177 | .info = mixer_ctl_feature_info, | |
1178 | .get = mixer_ctl_feature_get, | |
1179 | .put = mixer_ctl_feature_put, | |
1180 | }; | |
1181 | ||
23caaf19 | 1182 | /* the read-only variant */ |
8fdaebbb | 1183 | static const struct snd_kcontrol_new usb_feature_unit_ctl_ro = { |
23caaf19 DM |
1184 | .iface = SNDRV_CTL_ELEM_IFACE_MIXER, |
1185 | .name = "", /* will be filled later manually */ | |
1186 | .info = mixer_ctl_feature_info, | |
1187 | .get = mixer_ctl_feature_get, | |
1188 | .put = NULL, | |
1189 | }; | |
1190 | ||
6bc170e4 DM |
1191 | /* |
1192 | * This symbol is exported in order to allow the mixer quirks to | |
1193 | * hook up to the standard feature unit control mechanism | |
1194 | */ | |
9e38658f | 1195 | struct snd_kcontrol_new *snd_usb_feature_unit_ctl = &usb_feature_unit_ctl; |
1da177e4 LT |
1196 | |
1197 | /* | |
1198 | * build a feature control | |
1199 | */ | |
08d1e635 TI |
1200 | static size_t append_ctl_name(struct snd_kcontrol *kctl, const char *str) |
1201 | { | |
1202 | return strlcat(kctl->id.name, str, sizeof(kctl->id.name)); | |
1203 | } | |
1204 | ||
6bc170e4 DM |
1205 | /* |
1206 | * A lot of headsets/headphones have a "Speaker" mixer. Make sure we | |
1207 | * rename it to "Headphone". We determine if something is a headphone | |
1208 | * similar to how udev determines form factor. | |
1209 | */ | |
9b4ef977 DH |
1210 | static void check_no_speaker_on_headset(struct snd_kcontrol *kctl, |
1211 | struct snd_card *card) | |
1212 | { | |
1213 | const char *names_to_check[] = { | |
1214 | "Headset", "headset", "Headphone", "headphone", NULL}; | |
1215 | const char **s; | |
e0f17c75 | 1216 | bool found = false; |
9b4ef977 DH |
1217 | |
1218 | if (strcmp("Speaker", kctl->id.name)) | |
1219 | return; | |
1220 | ||
1221 | for (s = names_to_check; *s; s++) | |
1222 | if (strstr(card->shortname, *s)) { | |
e0f17c75 | 1223 | found = true; |
9b4ef977 DH |
1224 | break; |
1225 | } | |
1226 | ||
1227 | if (!found) | |
1228 | return; | |
1229 | ||
1230 | strlcpy(kctl->id.name, "Headphone", sizeof(kctl->id.name)); | |
1231 | } | |
1232 | ||
99fc8645 | 1233 | static void build_feature_ctl(struct mixer_build *state, void *raw_desc, |
1da177e4 | 1234 | unsigned int ctl_mask, int control, |
23caaf19 | 1235 | struct usb_audio_term *iterm, int unitid, |
a6a33259 | 1236 | int readonly_mask) |
1da177e4 | 1237 | { |
99fc8645 | 1238 | struct uac_feature_unit_descriptor *desc = raw_desc; |
bc18e31c | 1239 | struct usb_feature_control_info *ctl_info; |
1da177e4 LT |
1240 | unsigned int len = 0; |
1241 | int mapped_name = 0; | |
99fc8645 | 1242 | int nameid = uac_feature_unit_iFeature(desc); |
86e07d34 TI |
1243 | struct snd_kcontrol *kctl; |
1244 | struct usb_mixer_elem_info *cval; | |
c3a3e040 | 1245 | const struct usbmix_name_map *map; |
80acefff | 1246 | unsigned int range; |
1da177e4 LT |
1247 | |
1248 | control++; /* change from zero-based to 1-based value */ | |
1249 | ||
65f25da4 | 1250 | if (control == UAC_FU_GRAPHIC_EQUALIZER) { |
1da177e4 LT |
1251 | /* FIXME: not supported yet */ |
1252 | return; | |
1253 | } | |
1254 | ||
c3a3e040 JK |
1255 | map = find_map(state, unitid, control); |
1256 | if (check_ignored_ctl(map)) | |
1da177e4 LT |
1257 | return; |
1258 | ||
561b220a | 1259 | cval = kzalloc(sizeof(*cval), GFP_KERNEL); |
a860d95f | 1260 | if (!cval) |
1da177e4 | 1261 | return; |
3360b84b | 1262 | snd_usb_mixer_elem_init_std(&cval->head, state->mixer, unitid); |
1da177e4 LT |
1263 | cval->control = control; |
1264 | cval->cmask = ctl_mask; | |
bc18e31c JS |
1265 | ctl_info = &audio_feature_info[control-1]; |
1266 | if (state->mixer->protocol == UAC_VERSION_1) | |
1267 | cval->val_type = ctl_info->type; | |
1268 | else /* UAC_VERSION_2 */ | |
1269 | cval->val_type = ctl_info->type_uac2 >= 0 ? | |
1270 | ctl_info->type_uac2 : ctl_info->type; | |
1271 | ||
a6a33259 | 1272 | if (ctl_mask == 0) { |
1da177e4 | 1273 | cval->channels = 1; /* master channel */ |
a6a33259 DM |
1274 | cval->master_readonly = readonly_mask; |
1275 | } else { | |
1da177e4 LT |
1276 | int i, c = 0; |
1277 | for (i = 0; i < 16; i++) | |
1278 | if (ctl_mask & (1 << i)) | |
1279 | c++; | |
1280 | cval->channels = c; | |
a6a33259 | 1281 | cval->ch_readonly = readonly_mask; |
1da177e4 LT |
1282 | } |
1283 | ||
6bc170e4 DM |
1284 | /* |
1285 | * If all channels in the mask are marked read-only, make the control | |
eef90451 | 1286 | * read-only. snd_usb_set_cur_mix_value() will check the mask again and won't |
6bc170e4 DM |
1287 | * issue write commands to read-only channels. |
1288 | */ | |
a6a33259 | 1289 | if (cval->channels == readonly_mask) |
23caaf19 DM |
1290 | kctl = snd_ctl_new1(&usb_feature_unit_ctl_ro, cval); |
1291 | else | |
1292 | kctl = snd_ctl_new1(&usb_feature_unit_ctl, cval); | |
1293 | ||
6bc170e4 | 1294 | if (!kctl) { |
0ba41d91 | 1295 | usb_audio_err(state->chip, "cannot malloc kcontrol\n"); |
1da177e4 LT |
1296 | kfree(cval); |
1297 | return; | |
1298 | } | |
eef90451 | 1299 | kctl->private_free = snd_usb_mixer_elem_free; |
1da177e4 | 1300 | |
c3a3e040 | 1301 | len = check_mapped_name(map, kctl->id.name, sizeof(kctl->id.name)); |
1da177e4 | 1302 | mapped_name = len != 0; |
6bc170e4 | 1303 | if (!len && nameid) |
c3a3e040 JK |
1304 | len = snd_usb_copy_string_desc(state, nameid, |
1305 | kctl->id.name, sizeof(kctl->id.name)); | |
1da177e4 LT |
1306 | |
1307 | switch (control) { | |
65f25da4 DM |
1308 | case UAC_FU_MUTE: |
1309 | case UAC_FU_VOLUME: | |
6bc170e4 DM |
1310 | /* |
1311 | * determine the control name. the rule is: | |
1da177e4 LT |
1312 | * - if a name id is given in descriptor, use it. |
1313 | * - if the connected input can be determined, then use the name | |
1314 | * of terminal type. | |
1315 | * - if the connected output can be determined, use it. | |
1316 | * - otherwise, anonymous name. | |
1317 | */ | |
6bc170e4 DM |
1318 | if (!len) { |
1319 | len = get_term_name(state, iterm, kctl->id.name, | |
1320 | sizeof(kctl->id.name), 1); | |
1321 | if (!len) | |
1322 | len = get_term_name(state, &state->oterm, | |
1323 | kctl->id.name, | |
1324 | sizeof(kctl->id.name), 1); | |
1325 | if (!len) | |
49fd46d2 DM |
1326 | snprintf(kctl->id.name, sizeof(kctl->id.name), |
1327 | "Feature %d", unitid); | |
1da177e4 | 1328 | } |
9b4ef977 DH |
1329 | |
1330 | if (!mapped_name) | |
1331 | check_no_speaker_on_headset(kctl, state->mixer->chip->card); | |
1332 | ||
6bc170e4 DM |
1333 | /* |
1334 | * determine the stream direction: | |
1da177e4 LT |
1335 | * if the connected output is USB stream, then it's likely a |
1336 | * capture stream. otherwise it should be playback (hopefully :) | |
1337 | */ | |
6bc170e4 DM |
1338 | if (!mapped_name && !(state->oterm.type >> 16)) { |
1339 | if ((state->oterm.type & 0xff00) == 0x0100) | |
49fd46d2 | 1340 | append_ctl_name(kctl, " Capture"); |
6bc170e4 | 1341 | else |
49fd46d2 | 1342 | append_ctl_name(kctl, " Playback"); |
1da177e4 | 1343 | } |
65f25da4 | 1344 | append_ctl_name(kctl, control == UAC_FU_MUTE ? |
08d1e635 | 1345 | " Switch" : " Volume"); |
1da177e4 | 1346 | break; |
1da177e4 | 1347 | default: |
6bc170e4 | 1348 | if (!len) |
1da177e4 LT |
1349 | strlcpy(kctl->id.name, audio_feature_info[control-1].name, |
1350 | sizeof(kctl->id.name)); | |
1351 | break; | |
1352 | } | |
1353 | ||
e182534d TI |
1354 | /* get min/max values */ |
1355 | get_min_max_with_quirks(cval, 0, kctl); | |
1356 | ||
1357 | if (control == UAC_FU_VOLUME) { | |
1358 | check_mapped_dB(map, cval); | |
1359 | if (cval->dBmin < cval->dBmax || !cval->initialized) { | |
1360 | kctl->tlv.c = snd_usb_mixer_vol_tlv; | |
1361 | kctl->vd[0].access |= | |
1362 | SNDRV_CTL_ELEM_ACCESS_TLV_READ | | |
1363 | SNDRV_CTL_ELEM_ACCESS_TLV_CALLBACK; | |
1364 | } | |
1365 | } | |
1366 | ||
42e3121d AH |
1367 | snd_usb_mixer_fu_apply_quirk(state->mixer, cval, unitid, kctl); |
1368 | ||
80acefff | 1369 | range = (cval->max - cval->min) / cval->res; |
6bc170e4 DM |
1370 | /* |
1371 | * Are there devices with volume range more than 255? I use a bit more | |
80acefff OR |
1372 | * to be sure. 384 is a resolution magic number found on Logitech |
1373 | * devices. It will definitively catch all buggy Logitech devices. | |
1374 | */ | |
1375 | if (range > 384) { | |
6bc170e4 | 1376 | usb_audio_warn(state->chip, |
82c1cf0a | 1377 | "Warning! Unlikely big volume range (=%u), cval->res is probably wrong.", |
6bc170e4 | 1378 | range); |
82c1cf0a MM |
1379 | usb_audio_warn(state->chip, |
1380 | "[%d] FU [%s] ch = %d, val = %d/%d/%d", | |
3360b84b | 1381 | cval->head.id, kctl->id.name, cval->channels, |
6bc170e4 | 1382 | cval->min, cval->max, cval->res); |
80acefff OR |
1383 | } |
1384 | ||
0ba41d91 | 1385 | usb_audio_dbg(state->chip, "[%d] FU [%s] ch = %d, val = %d/%d/%d\n", |
3360b84b | 1386 | cval->head.id, kctl->id.name, cval->channels, |
6bc170e4 | 1387 | cval->min, cval->max, cval->res); |
3360b84b | 1388 | snd_usb_mixer_add_control(&cval->head, kctl); |
1da177e4 LT |
1389 | } |
1390 | ||
cddaafb9 DM |
1391 | static int parse_clock_source_unit(struct mixer_build *state, int unitid, |
1392 | void *_ftr) | |
1393 | { | |
1394 | struct uac_clock_source_descriptor *hdr = _ftr; | |
1395 | struct usb_mixer_elem_info *cval; | |
1396 | struct snd_kcontrol *kctl; | |
1397 | char name[SNDRV_CTL_ELEM_ID_NAME_MAXLEN]; | |
1398 | int ret; | |
1399 | ||
1400 | if (state->mixer->protocol != UAC_VERSION_2) | |
1401 | return -EINVAL; | |
1402 | ||
1403 | if (hdr->bLength != sizeof(*hdr)) { | |
1404 | usb_audio_dbg(state->chip, | |
1405 | "Bogus clock source descriptor length of %d, ignoring.\n", | |
1406 | hdr->bLength); | |
1407 | return 0; | |
1408 | } | |
1409 | ||
1410 | /* | |
1411 | * The only property of this unit we are interested in is the | |
1412 | * clock source validity. If that isn't readable, just bail out. | |
1413 | */ | |
1414 | if (!uac2_control_is_readable(hdr->bmControls, | |
1415 | ilog2(UAC2_CS_CONTROL_CLOCK_VALID))) | |
1416 | return 0; | |
1417 | ||
1418 | cval = kzalloc(sizeof(*cval), GFP_KERNEL); | |
1419 | if (!cval) | |
1420 | return -ENOMEM; | |
1421 | ||
1422 | snd_usb_mixer_elem_init_std(&cval->head, state->mixer, hdr->bClockID); | |
1423 | ||
1424 | cval->min = 0; | |
1425 | cval->max = 1; | |
1426 | cval->channels = 1; | |
1427 | cval->val_type = USB_MIXER_BOOLEAN; | |
1428 | cval->control = UAC2_CS_CONTROL_CLOCK_VALID; | |
1429 | ||
1430 | if (uac2_control_is_writeable(hdr->bmControls, | |
1431 | ilog2(UAC2_CS_CONTROL_CLOCK_VALID))) | |
1432 | kctl = snd_ctl_new1(&usb_feature_unit_ctl, cval); | |
1433 | else { | |
1434 | cval->master_readonly = 1; | |
1435 | kctl = snd_ctl_new1(&usb_feature_unit_ctl_ro, cval); | |
1436 | } | |
1437 | ||
1438 | if (!kctl) { | |
1439 | kfree(cval); | |
1440 | return -ENOMEM; | |
1441 | } | |
1442 | ||
1443 | kctl->private_free = snd_usb_mixer_elem_free; | |
1444 | ret = snd_usb_copy_string_desc(state, hdr->iClockSource, | |
1445 | name, sizeof(name)); | |
1446 | if (ret > 0) | |
1447 | snprintf(kctl->id.name, sizeof(kctl->id.name), | |
1448 | "%s Validity", name); | |
1449 | else | |
1450 | snprintf(kctl->id.name, sizeof(kctl->id.name), | |
1451 | "Clock Source %d Validity", hdr->bClockID); | |
1452 | ||
1453 | return snd_usb_mixer_add_control(&cval->head, kctl); | |
1454 | } | |
1455 | ||
1da177e4 LT |
1456 | /* |
1457 | * parse a feature unit | |
1458 | * | |
25985edc | 1459 | * most of controls are defined here. |
1da177e4 | 1460 | */ |
6bc170e4 DM |
1461 | static int parse_audio_feature_unit(struct mixer_build *state, int unitid, |
1462 | void *_ftr) | |
1da177e4 LT |
1463 | { |
1464 | int channels, i, j; | |
86e07d34 | 1465 | struct usb_audio_term iterm; |
1da177e4 LT |
1466 | unsigned int master_bits, first_ch_bits; |
1467 | int err, csize; | |
23caaf19 DM |
1468 | struct uac_feature_unit_descriptor *hdr = _ftr; |
1469 | __u8 *bmaControls; | |
1470 | ||
1471 | if (state->mixer->protocol == UAC_VERSION_1) { | |
1472 | csize = hdr->bControlSize; | |
60c961a9 | 1473 | if (!csize) { |
0ba41d91 TI |
1474 | usb_audio_dbg(state->chip, |
1475 | "unit %u: invalid bControlSize == 0\n", | |
1476 | unitid); | |
60c961a9 NK |
1477 | return -EINVAL; |
1478 | } | |
23caaf19 DM |
1479 | channels = (hdr->bLength - 7) / csize - 1; |
1480 | bmaControls = hdr->bmaControls; | |
d56268fb | 1481 | if (hdr->bLength < 7 + csize) { |
0ba41d91 TI |
1482 | usb_audio_err(state->chip, |
1483 | "unit %u: invalid UAC_FEATURE_UNIT descriptor\n", | |
1484 | unitid); | |
d56268fb CL |
1485 | return -EINVAL; |
1486 | } | |
23caaf19 DM |
1487 | } else { |
1488 | struct uac2_feature_unit_descriptor *ftr = _ftr; | |
1489 | csize = 4; | |
e8d0fee7 | 1490 | channels = (hdr->bLength - 6) / 4 - 1; |
23caaf19 | 1491 | bmaControls = ftr->bmaControls; |
d56268fb | 1492 | if (hdr->bLength < 6 + csize) { |
0ba41d91 TI |
1493 | usb_audio_err(state->chip, |
1494 | "unit %u: invalid UAC_FEATURE_UNIT descriptor\n", | |
1495 | unitid); | |
d56268fb CL |
1496 | return -EINVAL; |
1497 | } | |
1da177e4 LT |
1498 | } |
1499 | ||
1500 | /* parse the source unit */ | |
23caaf19 | 1501 | if ((err = parse_audio_unit(state, hdr->bSourceID)) < 0) |
1da177e4 LT |
1502 | return err; |
1503 | ||
1504 | /* determine the input source type and name */ | |
4d7b86c9 DM |
1505 | err = check_input_term(state, hdr->bSourceID, &iterm); |
1506 | if (err < 0) | |
1507 | return err; | |
1da177e4 | 1508 | |
23caaf19 | 1509 | master_bits = snd_usb_combine_bytes(bmaControls, csize); |
0c3cee57 JK |
1510 | /* master configuration quirks */ |
1511 | switch (state->chip->usb_id) { | |
1512 | case USB_ID(0x08bb, 0x2702): | |
0ba41d91 TI |
1513 | usb_audio_info(state->chip, |
1514 | "usbmixer: master volume quirk for PCM2702 chip\n"); | |
0c3cee57 | 1515 | /* disable non-functional volume control */ |
65f25da4 | 1516 | master_bits &= ~UAC_CONTROL_BIT(UAC_FU_VOLUME); |
0c3cee57 | 1517 | break; |
c1051439 | 1518 | case USB_ID(0x1130, 0xf211): |
0ba41d91 TI |
1519 | usb_audio_info(state->chip, |
1520 | "usbmixer: volume control quirk for Tenx TP6911 Audio Headset\n"); | |
c1051439 DH |
1521 | /* disable non-functional volume control */ |
1522 | channels = 0; | |
1523 | break; | |
1524 | ||
0c3cee57 | 1525 | } |
1da177e4 | 1526 | if (channels > 0) |
23caaf19 | 1527 | first_ch_bits = snd_usb_combine_bytes(bmaControls + csize, csize); |
1da177e4 LT |
1528 | else |
1529 | first_ch_bits = 0; | |
23caaf19 DM |
1530 | |
1531 | if (state->mixer->protocol == UAC_VERSION_1) { | |
1532 | /* check all control types */ | |
1533 | for (i = 0; i < 10; i++) { | |
1534 | unsigned int ch_bits = 0; | |
1535 | for (j = 0; j < channels; j++) { | |
6bc170e4 DM |
1536 | unsigned int mask; |
1537 | ||
1538 | mask = snd_usb_combine_bytes(bmaControls + | |
1539 | csize * (j+1), csize); | |
23caaf19 DM |
1540 | if (mask & (1 << i)) |
1541 | ch_bits |= (1 << j); | |
1542 | } | |
1543 | /* audio class v1 controls are never read-only */ | |
6bc170e4 DM |
1544 | |
1545 | /* | |
1546 | * The first channel must be set | |
1547 | * (for ease of programming). | |
1548 | */ | |
1549 | if (ch_bits & 1) | |
1550 | build_feature_ctl(state, _ftr, ch_bits, i, | |
1551 | &iterm, unitid, 0); | |
23caaf19 | 1552 | if (master_bits & (1 << i)) |
6bc170e4 DM |
1553 | build_feature_ctl(state, _ftr, 0, i, &iterm, |
1554 | unitid, 0); | |
23caaf19 DM |
1555 | } |
1556 | } else { /* UAC_VERSION_2 */ | |
d09c06c6 | 1557 | for (i = 0; i < ARRAY_SIZE(audio_feature_info); i++) { |
23caaf19 DM |
1558 | unsigned int ch_bits = 0; |
1559 | unsigned int ch_read_only = 0; | |
1560 | ||
1561 | for (j = 0; j < channels; j++) { | |
6bc170e4 DM |
1562 | unsigned int mask; |
1563 | ||
1564 | mask = snd_usb_combine_bytes(bmaControls + | |
1565 | csize * (j+1), csize); | |
dcbe7bcf | 1566 | if (uac2_control_is_readable(mask, i)) { |
23caaf19 | 1567 | ch_bits |= (1 << j); |
dcbe7bcf | 1568 | if (!uac2_control_is_writeable(mask, i)) |
23caaf19 DM |
1569 | ch_read_only |= (1 << j); |
1570 | } | |
1571 | } | |
1572 | ||
6bc170e4 DM |
1573 | /* |
1574 | * NOTE: build_feature_ctl() will mark the control | |
1575 | * read-only if all channels are marked read-only in | |
1576 | * the descriptors. Otherwise, the control will be | |
1577 | * reported as writeable, but the driver will not | |
1578 | * actually issue a write command for read-only | |
1579 | * channels. | |
1580 | */ | |
1581 | ||
1582 | /* | |
1583 | * The first channel must be set | |
1584 | * (for ease of programming). | |
1585 | */ | |
1586 | if (ch_bits & 1) | |
1587 | build_feature_ctl(state, _ftr, ch_bits, i, | |
1588 | &iterm, unitid, ch_read_only); | |
dcbe7bcf | 1589 | if (uac2_control_is_readable(master_bits, i)) |
23caaf19 | 1590 | build_feature_ctl(state, _ftr, 0, i, &iterm, unitid, |
dcbe7bcf | 1591 | !uac2_control_is_writeable(master_bits, i)); |
1da177e4 | 1592 | } |
1da177e4 LT |
1593 | } |
1594 | ||
1595 | return 0; | |
1596 | } | |
1597 | ||
1da177e4 LT |
1598 | /* |
1599 | * Mixer Unit | |
1600 | */ | |
1601 | ||
1602 | /* | |
1603 | * build a mixer unit control | |
1604 | * | |
1605 | * the callbacks are identical with feature unit. | |
1606 | * input channel number (zero based) is given in control field instead. | |
1607 | */ | |
99fc8645 DM |
1608 | static void build_mixer_unit_ctl(struct mixer_build *state, |
1609 | struct uac_mixer_unit_descriptor *desc, | |
1da177e4 | 1610 | int in_pin, int in_ch, int unitid, |
86e07d34 | 1611 | struct usb_audio_term *iterm) |
1da177e4 | 1612 | { |
86e07d34 | 1613 | struct usb_mixer_elem_info *cval; |
99fc8645 | 1614 | unsigned int num_outs = uac_mixer_unit_bNrChannels(desc); |
1da177e4 | 1615 | unsigned int i, len; |
86e07d34 | 1616 | struct snd_kcontrol *kctl; |
c3a3e040 | 1617 | const struct usbmix_name_map *map; |
1da177e4 | 1618 | |
c3a3e040 JK |
1619 | map = find_map(state, unitid, 0); |
1620 | if (check_ignored_ctl(map)) | |
1da177e4 LT |
1621 | return; |
1622 | ||
561b220a | 1623 | cval = kzalloc(sizeof(*cval), GFP_KERNEL); |
6bc170e4 | 1624 | if (!cval) |
1da177e4 LT |
1625 | return; |
1626 | ||
3360b84b | 1627 | snd_usb_mixer_elem_init_std(&cval->head, state->mixer, unitid); |
1da177e4 LT |
1628 | cval->control = in_ch + 1; /* based on 1 */ |
1629 | cval->val_type = USB_MIXER_S16; | |
1630 | for (i = 0; i < num_outs; i++) { | |
6bc170e4 DM |
1631 | __u8 *c = uac_mixer_unit_bmControls(desc, state->mixer->protocol); |
1632 | ||
1633 | if (check_matrix_bitmap(c, in_ch, i, num_outs)) { | |
1da177e4 LT |
1634 | cval->cmask |= (1 << i); |
1635 | cval->channels++; | |
1636 | } | |
1637 | } | |
1638 | ||
1639 | /* get min/max values */ | |
1640 | get_min_max(cval, 0); | |
1641 | ||
1642 | kctl = snd_ctl_new1(&usb_feature_unit_ctl, cval); | |
6bc170e4 | 1643 | if (!kctl) { |
0ba41d91 | 1644 | usb_audio_err(state->chip, "cannot malloc kcontrol\n"); |
1da177e4 LT |
1645 | kfree(cval); |
1646 | return; | |
1647 | } | |
eef90451 | 1648 | kctl->private_free = snd_usb_mixer_elem_free; |
1da177e4 | 1649 | |
c3a3e040 | 1650 | len = check_mapped_name(map, kctl->id.name, sizeof(kctl->id.name)); |
6bc170e4 DM |
1651 | if (!len) |
1652 | len = get_term_name(state, iterm, kctl->id.name, | |
1653 | sizeof(kctl->id.name), 0); | |
1654 | if (!len) | |
1da177e4 | 1655 | len = sprintf(kctl->id.name, "Mixer Source %d", in_ch + 1); |
08d1e635 | 1656 | append_ctl_name(kctl, " Volume"); |
1da177e4 | 1657 | |
0ba41d91 | 1658 | usb_audio_dbg(state->chip, "[%d] MU [%s] ch = %d, val = %d/%d\n", |
3360b84b TI |
1659 | cval->head.id, kctl->id.name, cval->channels, cval->min, cval->max); |
1660 | snd_usb_mixer_add_control(&cval->head, kctl); | |
1da177e4 LT |
1661 | } |
1662 | ||
1da177e4 LT |
1663 | /* |
1664 | * parse a mixer unit | |
1665 | */ | |
6bc170e4 DM |
1666 | static int parse_audio_mixer_unit(struct mixer_build *state, int unitid, |
1667 | void *raw_desc) | |
1da177e4 | 1668 | { |
99fc8645 | 1669 | struct uac_mixer_unit_descriptor *desc = raw_desc; |
86e07d34 | 1670 | struct usb_audio_term iterm; |
1da177e4 LT |
1671 | int input_pins, num_ins, num_outs; |
1672 | int pin, ich, err; | |
1673 | ||
6bc170e4 DM |
1674 | if (desc->bLength < 11 || !(input_pins = desc->bNrInPins) || |
1675 | !(num_outs = uac_mixer_unit_bNrChannels(desc))) { | |
1676 | usb_audio_err(state->chip, | |
1677 | "invalid MIXER UNIT descriptor %d\n", | |
1678 | unitid); | |
1da177e4 LT |
1679 | return -EINVAL; |
1680 | } | |
1da177e4 LT |
1681 | |
1682 | num_ins = 0; | |
1683 | ich = 0; | |
1684 | for (pin = 0; pin < input_pins; pin++) { | |
99fc8645 | 1685 | err = parse_audio_unit(state, desc->baSourceID[pin]); |
1da177e4 | 1686 | if (err < 0) |
284a8dd6 | 1687 | continue; |
ea114fc2 CL |
1688 | /* no bmControls field (e.g. Maya44) -> ignore */ |
1689 | if (desc->bLength <= 10 + input_pins) | |
1690 | continue; | |
99fc8645 | 1691 | err = check_input_term(state, desc->baSourceID[pin], &iterm); |
1da177e4 LT |
1692 | if (err < 0) |
1693 | return err; | |
1694 | num_ins += iterm.channels; | |
6bc170e4 | 1695 | for (; ich < num_ins; ich++) { |
1da177e4 LT |
1696 | int och, ich_has_controls = 0; |
1697 | ||
6bc170e4 DM |
1698 | for (och = 0; och < num_outs; och++) { |
1699 | __u8 *c = uac_mixer_unit_bmControls(desc, | |
1700 | state->mixer->protocol); | |
1701 | ||
1702 | if (check_matrix_bitmap(c, ich, och, num_outs)) { | |
1da177e4 LT |
1703 | ich_has_controls = 1; |
1704 | break; | |
1705 | } | |
1706 | } | |
1707 | if (ich_has_controls) | |
1708 | build_mixer_unit_ctl(state, desc, pin, ich, | |
1709 | unitid, &iterm); | |
1710 | } | |
1711 | } | |
1712 | return 0; | |
1713 | } | |
1714 | ||
1da177e4 LT |
1715 | /* |
1716 | * Processing Unit / Extension Unit | |
1717 | */ | |
1718 | ||
1719 | /* get callback for processing/extension unit */ | |
6bc170e4 DM |
1720 | static int mixer_ctl_procunit_get(struct snd_kcontrol *kcontrol, |
1721 | struct snd_ctl_elem_value *ucontrol) | |
1da177e4 | 1722 | { |
86e07d34 | 1723 | struct usb_mixer_elem_info *cval = kcontrol->private_data; |
1da177e4 LT |
1724 | int err, val; |
1725 | ||
1726 | err = get_cur_ctl_value(cval, cval->control << 8, &val); | |
5aeee342 | 1727 | if (err < 0) { |
1da177e4 | 1728 | ucontrol->value.integer.value[0] = cval->min; |
5aeee342 | 1729 | return filter_error(cval, err); |
1da177e4 | 1730 | } |
1da177e4 LT |
1731 | val = get_relative_value(cval, val); |
1732 | ucontrol->value.integer.value[0] = val; | |
1733 | return 0; | |
1734 | } | |
1735 | ||
1736 | /* put callback for processing/extension unit */ | |
6bc170e4 DM |
1737 | static int mixer_ctl_procunit_put(struct snd_kcontrol *kcontrol, |
1738 | struct snd_ctl_elem_value *ucontrol) | |
1da177e4 | 1739 | { |
86e07d34 | 1740 | struct usb_mixer_elem_info *cval = kcontrol->private_data; |
1da177e4 LT |
1741 | int val, oval, err; |
1742 | ||
1743 | err = get_cur_ctl_value(cval, cval->control << 8, &oval); | |
5aeee342 TI |
1744 | if (err < 0) |
1745 | return filter_error(cval, err); | |
1da177e4 LT |
1746 | val = ucontrol->value.integer.value[0]; |
1747 | val = get_abs_value(cval, val); | |
1748 | if (val != oval) { | |
1749 | set_cur_ctl_value(cval, cval->control << 8, val); | |
1750 | return 1; | |
1751 | } | |
1752 | return 0; | |
1753 | } | |
1754 | ||
1755 | /* alsa control interface for processing/extension unit */ | |
8fdaebbb | 1756 | static const struct snd_kcontrol_new mixer_procunit_ctl = { |
1da177e4 LT |
1757 | .iface = SNDRV_CTL_ELEM_IFACE_MIXER, |
1758 | .name = "", /* will be filled later */ | |
1759 | .info = mixer_ctl_feature_info, | |
1760 | .get = mixer_ctl_procunit_get, | |
1761 | .put = mixer_ctl_procunit_put, | |
1762 | }; | |
1763 | ||
1da177e4 LT |
1764 | /* |
1765 | * predefined data for processing units | |
1766 | */ | |
1767 | struct procunit_value_info { | |
1768 | int control; | |
1769 | char *suffix; | |
1770 | int val_type; | |
1771 | int min_value; | |
1772 | }; | |
1773 | ||
1774 | struct procunit_info { | |
1775 | int type; | |
1776 | char *name; | |
1777 | struct procunit_value_info *values; | |
1778 | }; | |
1779 | ||
1780 | static struct procunit_value_info updown_proc_info[] = { | |
65f25da4 DM |
1781 | { UAC_UD_ENABLE, "Switch", USB_MIXER_BOOLEAN }, |
1782 | { UAC_UD_MODE_SELECT, "Mode Select", USB_MIXER_U8, 1 }, | |
1da177e4 LT |
1783 | { 0 } |
1784 | }; | |
1785 | static struct procunit_value_info prologic_proc_info[] = { | |
65f25da4 DM |
1786 | { UAC_DP_ENABLE, "Switch", USB_MIXER_BOOLEAN }, |
1787 | { UAC_DP_MODE_SELECT, "Mode Select", USB_MIXER_U8, 1 }, | |
1da177e4 LT |
1788 | { 0 } |
1789 | }; | |
1790 | static struct procunit_value_info threed_enh_proc_info[] = { | |
65f25da4 DM |
1791 | { UAC_3D_ENABLE, "Switch", USB_MIXER_BOOLEAN }, |
1792 | { UAC_3D_SPACE, "Spaciousness", USB_MIXER_U8 }, | |
1da177e4 LT |
1793 | { 0 } |
1794 | }; | |
1795 | static struct procunit_value_info reverb_proc_info[] = { | |
65f25da4 DM |
1796 | { UAC_REVERB_ENABLE, "Switch", USB_MIXER_BOOLEAN }, |
1797 | { UAC_REVERB_LEVEL, "Level", USB_MIXER_U8 }, | |
1798 | { UAC_REVERB_TIME, "Time", USB_MIXER_U16 }, | |
1799 | { UAC_REVERB_FEEDBACK, "Feedback", USB_MIXER_U8 }, | |
1da177e4 LT |
1800 | { 0 } |
1801 | }; | |
1802 | static struct procunit_value_info chorus_proc_info[] = { | |
65f25da4 DM |
1803 | { UAC_CHORUS_ENABLE, "Switch", USB_MIXER_BOOLEAN }, |
1804 | { UAC_CHORUS_LEVEL, "Level", USB_MIXER_U8 }, | |
1805 | { UAC_CHORUS_RATE, "Rate", USB_MIXER_U16 }, | |
1806 | { UAC_CHORUS_DEPTH, "Depth", USB_MIXER_U16 }, | |
1da177e4 LT |
1807 | { 0 } |
1808 | }; | |
1809 | static struct procunit_value_info dcr_proc_info[] = { | |
65f25da4 DM |
1810 | { UAC_DCR_ENABLE, "Switch", USB_MIXER_BOOLEAN }, |
1811 | { UAC_DCR_RATE, "Ratio", USB_MIXER_U16 }, | |
1812 | { UAC_DCR_MAXAMPL, "Max Amp", USB_MIXER_S16 }, | |
1813 | { UAC_DCR_THRESHOLD, "Threshold", USB_MIXER_S16 }, | |
1814 | { UAC_DCR_ATTACK_TIME, "Attack Time", USB_MIXER_U16 }, | |
1815 | { UAC_DCR_RELEASE_TIME, "Release Time", USB_MIXER_U16 }, | |
1da177e4 LT |
1816 | { 0 } |
1817 | }; | |
1818 | ||
1819 | static struct procunit_info procunits[] = { | |
65f25da4 DM |
1820 | { UAC_PROCESS_UP_DOWNMIX, "Up Down", updown_proc_info }, |
1821 | { UAC_PROCESS_DOLBY_PROLOGIC, "Dolby Prologic", prologic_proc_info }, | |
1822 | { UAC_PROCESS_STEREO_EXTENDER, "3D Stereo Extender", threed_enh_proc_info }, | |
1823 | { UAC_PROCESS_REVERB, "Reverb", reverb_proc_info }, | |
1824 | { UAC_PROCESS_CHORUS, "Chorus", chorus_proc_info }, | |
1825 | { UAC_PROCESS_DYN_RANGE_COMP, "DCR", dcr_proc_info }, | |
1da177e4 LT |
1826 | { 0 }, |
1827 | }; | |
7d2b451e SK |
1828 | /* |
1829 | * predefined data for extension units | |
1830 | */ | |
1831 | static struct procunit_value_info clock_rate_xu_info[] = { | |
e213e9cf DM |
1832 | { USB_XU_CLOCK_RATE_SELECTOR, "Selector", USB_MIXER_U8, 0 }, |
1833 | { 0 } | |
7d2b451e SK |
1834 | }; |
1835 | static struct procunit_value_info clock_source_xu_info[] = { | |
1836 | { USB_XU_CLOCK_SOURCE_SELECTOR, "External", USB_MIXER_BOOLEAN }, | |
1837 | { 0 } | |
1838 | }; | |
1839 | static struct procunit_value_info spdif_format_xu_info[] = { | |
1840 | { USB_XU_DIGITAL_FORMAT_SELECTOR, "SPDIF/AC3", USB_MIXER_BOOLEAN }, | |
1841 | { 0 } | |
1842 | }; | |
1843 | static struct procunit_value_info soft_limit_xu_info[] = { | |
1844 | { USB_XU_SOFT_LIMIT_SELECTOR, " ", USB_MIXER_BOOLEAN }, | |
1845 | { 0 } | |
1846 | }; | |
1847 | static struct procunit_info extunits[] = { | |
1848 | { USB_XU_CLOCK_RATE, "Clock rate", clock_rate_xu_info }, | |
1849 | { USB_XU_CLOCK_SOURCE, "DigitalIn CLK source", clock_source_xu_info }, | |
1850 | { USB_XU_DIGITAL_IO_STATUS, "DigitalOut format:", spdif_format_xu_info }, | |
1851 | { USB_XU_DEVICE_OPTIONS, "AnalogueIn Soft Limit", soft_limit_xu_info }, | |
1852 | { 0 } | |
1853 | }; | |
6bc170e4 | 1854 | |
1da177e4 LT |
1855 | /* |
1856 | * build a processing/extension unit | |
1857 | */ | |
6bc170e4 DM |
1858 | static int build_audio_procunit(struct mixer_build *state, int unitid, |
1859 | void *raw_desc, struct procunit_info *list, | |
1860 | char *name) | |
1da177e4 | 1861 | { |
99fc8645 DM |
1862 | struct uac_processing_unit_descriptor *desc = raw_desc; |
1863 | int num_ins = desc->bNrInPins; | |
86e07d34 TI |
1864 | struct usb_mixer_elem_info *cval; |
1865 | struct snd_kcontrol *kctl; | |
1da177e4 LT |
1866 | int i, err, nameid, type, len; |
1867 | struct procunit_info *info; | |
1868 | struct procunit_value_info *valinfo; | |
c3a3e040 | 1869 | const struct usbmix_name_map *map; |
1da177e4 LT |
1870 | static struct procunit_value_info default_value_info[] = { |
1871 | { 0x01, "Switch", USB_MIXER_BOOLEAN }, | |
1872 | { 0 } | |
1873 | }; | |
1874 | static struct procunit_info default_info = { | |
1875 | 0, NULL, default_value_info | |
1876 | }; | |
1877 | ||
23caaf19 DM |
1878 | if (desc->bLength < 13 || desc->bLength < 13 + num_ins || |
1879 | desc->bLength < num_ins + uac_processing_unit_bControlSize(desc, state->mixer->protocol)) { | |
0ba41d91 | 1880 | usb_audio_err(state->chip, "invalid %s descriptor (id %d)\n", name, unitid); |
1da177e4 LT |
1881 | return -EINVAL; |
1882 | } | |
1883 | ||
1884 | for (i = 0; i < num_ins; i++) { | |
99fc8645 | 1885 | if ((err = parse_audio_unit(state, desc->baSourceID[i])) < 0) |
1da177e4 LT |
1886 | return err; |
1887 | } | |
1888 | ||
99fc8645 | 1889 | type = le16_to_cpu(desc->wProcessType); |
1da177e4 LT |
1890 | for (info = list; info && info->type; info++) |
1891 | if (info->type == type) | |
1892 | break; | |
6bc170e4 | 1893 | if (!info || !info->type) |
1da177e4 LT |
1894 | info = &default_info; |
1895 | ||
1896 | for (valinfo = info->values; valinfo->control; valinfo++) { | |
23caaf19 | 1897 | __u8 *controls = uac_processing_unit_bmControls(desc, state->mixer->protocol); |
99fc8645 | 1898 | |
6bc170e4 | 1899 | if (!(controls[valinfo->control / 8] & (1 << ((valinfo->control % 8) - 1)))) |
1da177e4 | 1900 | continue; |
c3a3e040 JK |
1901 | map = find_map(state, unitid, valinfo->control); |
1902 | if (check_ignored_ctl(map)) | |
1da177e4 | 1903 | continue; |
561b220a | 1904 | cval = kzalloc(sizeof(*cval), GFP_KERNEL); |
a860d95f | 1905 | if (!cval) |
1da177e4 | 1906 | return -ENOMEM; |
3360b84b | 1907 | snd_usb_mixer_elem_init_std(&cval->head, state->mixer, unitid); |
1da177e4 LT |
1908 | cval->control = valinfo->control; |
1909 | cval->val_type = valinfo->val_type; | |
1910 | cval->channels = 1; | |
1911 | ||
1912 | /* get min/max values */ | |
65f25da4 | 1913 | if (type == UAC_PROCESS_UP_DOWNMIX && cval->control == UAC_UD_MODE_SELECT) { |
23caaf19 | 1914 | __u8 *control_spec = uac_processing_unit_specific(desc, state->mixer->protocol); |
1da177e4 LT |
1915 | /* FIXME: hard-coded */ |
1916 | cval->min = 1; | |
99fc8645 | 1917 | cval->max = control_spec[0]; |
1da177e4 LT |
1918 | cval->res = 1; |
1919 | cval->initialized = 1; | |
7d2b451e SK |
1920 | } else { |
1921 | if (type == USB_XU_CLOCK_RATE) { | |
6bc170e4 DM |
1922 | /* |
1923 | * E-Mu USB 0404/0202/TrackerPre/0204 | |
7d2b451e SK |
1924 | * samplerate control quirk |
1925 | */ | |
1926 | cval->min = 0; | |
1927 | cval->max = 5; | |
1928 | cval->res = 1; | |
1929 | cval->initialized = 1; | |
1930 | } else | |
1931 | get_min_max(cval, valinfo->min_value); | |
1932 | } | |
1da177e4 LT |
1933 | |
1934 | kctl = snd_ctl_new1(&mixer_procunit_ctl, cval); | |
6bc170e4 | 1935 | if (!kctl) { |
1da177e4 LT |
1936 | kfree(cval); |
1937 | return -ENOMEM; | |
1938 | } | |
eef90451 | 1939 | kctl->private_free = snd_usb_mixer_elem_free; |
1da177e4 | 1940 | |
6bc170e4 | 1941 | if (check_mapped_name(map, kctl->id.name, sizeof(kctl->id.name))) { |
c3a3e040 | 1942 | /* nothing */ ; |
6bc170e4 | 1943 | } else if (info->name) { |
1da177e4 | 1944 | strlcpy(kctl->id.name, info->name, sizeof(kctl->id.name)); |
6bc170e4 | 1945 | } else { |
23caaf19 | 1946 | nameid = uac_processing_unit_iProcessing(desc, state->mixer->protocol); |
1da177e4 LT |
1947 | len = 0; |
1948 | if (nameid) | |
6bc170e4 DM |
1949 | len = snd_usb_copy_string_desc(state, nameid, |
1950 | kctl->id.name, | |
1951 | sizeof(kctl->id.name)); | |
1952 | if (!len) | |
1da177e4 LT |
1953 | strlcpy(kctl->id.name, name, sizeof(kctl->id.name)); |
1954 | } | |
08d1e635 TI |
1955 | append_ctl_name(kctl, " "); |
1956 | append_ctl_name(kctl, valinfo->suffix); | |
1da177e4 | 1957 | |
0ba41d91 | 1958 | usb_audio_dbg(state->chip, |
6bc170e4 | 1959 | "[%d] PU [%s] ch = %d, val = %d/%d\n", |
3360b84b | 1960 | cval->head.id, kctl->id.name, cval->channels, |
6bc170e4 DM |
1961 | cval->min, cval->max); |
1962 | ||
3360b84b | 1963 | err = snd_usb_mixer_add_control(&cval->head, kctl); |
6bc170e4 | 1964 | if (err < 0) |
1da177e4 LT |
1965 | return err; |
1966 | } | |
1967 | return 0; | |
1968 | } | |
1969 | ||
6bc170e4 DM |
1970 | static int parse_audio_processing_unit(struct mixer_build *state, int unitid, |
1971 | void *raw_desc) | |
1da177e4 | 1972 | { |
6bc170e4 DM |
1973 | return build_audio_procunit(state, unitid, raw_desc, |
1974 | procunits, "Processing Unit"); | |
1da177e4 LT |
1975 | } |
1976 | ||
6bc170e4 DM |
1977 | static int parse_audio_extension_unit(struct mixer_build *state, int unitid, |
1978 | void *raw_desc) | |
1da177e4 | 1979 | { |
6bc170e4 DM |
1980 | /* |
1981 | * Note that we parse extension units with processing unit descriptors. | |
1982 | * That's ok as the layout is the same. | |
1983 | */ | |
1984 | return build_audio_procunit(state, unitid, raw_desc, | |
1985 | extunits, "Extension Unit"); | |
1da177e4 LT |
1986 | } |
1987 | ||
1da177e4 LT |
1988 | /* |
1989 | * Selector Unit | |
1990 | */ | |
1991 | ||
6bc170e4 DM |
1992 | /* |
1993 | * info callback for selector unit | |
1da177e4 LT |
1994 | * use an enumerator type for routing |
1995 | */ | |
6bc170e4 DM |
1996 | static int mixer_ctl_selector_info(struct snd_kcontrol *kcontrol, |
1997 | struct snd_ctl_elem_info *uinfo) | |
1da177e4 | 1998 | { |
86e07d34 | 1999 | struct usb_mixer_elem_info *cval = kcontrol->private_data; |
2a1803a7 | 2000 | const char **itemlist = (const char **)kcontrol->private_value; |
1da177e4 | 2001 | |
5e246b85 TI |
2002 | if (snd_BUG_ON(!itemlist)) |
2003 | return -EINVAL; | |
2a1803a7 | 2004 | return snd_ctl_enum_info(uinfo, 1, cval->max, itemlist); |
1da177e4 LT |
2005 | } |
2006 | ||
2007 | /* get callback for selector unit */ | |
6bc170e4 DM |
2008 | static int mixer_ctl_selector_get(struct snd_kcontrol *kcontrol, |
2009 | struct snd_ctl_elem_value *ucontrol) | |
1da177e4 | 2010 | { |
86e07d34 | 2011 | struct usb_mixer_elem_info *cval = kcontrol->private_data; |
1da177e4 LT |
2012 | int val, err; |
2013 | ||
09414207 | 2014 | err = get_cur_ctl_value(cval, cval->control << 8, &val); |
1da177e4 | 2015 | if (err < 0) { |
5aeee342 TI |
2016 | ucontrol->value.enumerated.item[0] = 0; |
2017 | return filter_error(cval, err); | |
1da177e4 LT |
2018 | } |
2019 | val = get_relative_value(cval, val); | |
2020 | ucontrol->value.enumerated.item[0] = val; | |
2021 | return 0; | |
2022 | } | |
2023 | ||
2024 | /* put callback for selector unit */ | |
6bc170e4 DM |
2025 | static int mixer_ctl_selector_put(struct snd_kcontrol *kcontrol, |
2026 | struct snd_ctl_elem_value *ucontrol) | |
1da177e4 | 2027 | { |
86e07d34 | 2028 | struct usb_mixer_elem_info *cval = kcontrol->private_data; |
1da177e4 LT |
2029 | int val, oval, err; |
2030 | ||
09414207 | 2031 | err = get_cur_ctl_value(cval, cval->control << 8, &oval); |
5aeee342 TI |
2032 | if (err < 0) |
2033 | return filter_error(cval, err); | |
1da177e4 LT |
2034 | val = ucontrol->value.enumerated.item[0]; |
2035 | val = get_abs_value(cval, val); | |
2036 | if (val != oval) { | |
09414207 | 2037 | set_cur_ctl_value(cval, cval->control << 8, val); |
1da177e4 LT |
2038 | return 1; |
2039 | } | |
2040 | return 0; | |
2041 | } | |
2042 | ||
2043 | /* alsa control interface for selector unit */ | |
8fdaebbb | 2044 | static const struct snd_kcontrol_new mixer_selectunit_ctl = { |
1da177e4 LT |
2045 | .iface = SNDRV_CTL_ELEM_IFACE_MIXER, |
2046 | .name = "", /* will be filled later */ | |
2047 | .info = mixer_ctl_selector_info, | |
2048 | .get = mixer_ctl_selector_get, | |
2049 | .put = mixer_ctl_selector_put, | |
2050 | }; | |
2051 | ||
6bc170e4 DM |
2052 | /* |
2053 | * private free callback. | |
1da177e4 LT |
2054 | * free both private_data and private_value |
2055 | */ | |
86e07d34 | 2056 | static void usb_mixer_selector_elem_free(struct snd_kcontrol *kctl) |
1da177e4 LT |
2057 | { |
2058 | int i, num_ins = 0; | |
2059 | ||
2060 | if (kctl->private_data) { | |
86e07d34 | 2061 | struct usb_mixer_elem_info *cval = kctl->private_data; |
1da177e4 LT |
2062 | num_ins = cval->max; |
2063 | kfree(cval); | |
2064 | kctl->private_data = NULL; | |
2065 | } | |
2066 | if (kctl->private_value) { | |
2067 | char **itemlist = (char **)kctl->private_value; | |
2068 | for (i = 0; i < num_ins; i++) | |
2069 | kfree(itemlist[i]); | |
2070 | kfree(itemlist); | |
2071 | kctl->private_value = 0; | |
2072 | } | |
2073 | } | |
2074 | ||
2075 | /* | |
2076 | * parse a selector unit | |
2077 | */ | |
6bc170e4 DM |
2078 | static int parse_audio_selector_unit(struct mixer_build *state, int unitid, |
2079 | void *raw_desc) | |
1da177e4 | 2080 | { |
99fc8645 | 2081 | struct uac_selector_unit_descriptor *desc = raw_desc; |
1da177e4 LT |
2082 | unsigned int i, nameid, len; |
2083 | int err; | |
86e07d34 TI |
2084 | struct usb_mixer_elem_info *cval; |
2085 | struct snd_kcontrol *kctl; | |
c3a3e040 | 2086 | const struct usbmix_name_map *map; |
1da177e4 LT |
2087 | char **namelist; |
2088 | ||
99fc8645 | 2089 | if (!desc->bNrInPins || desc->bLength < 5 + desc->bNrInPins) { |
0ba41d91 TI |
2090 | usb_audio_err(state->chip, |
2091 | "invalid SELECTOR UNIT descriptor %d\n", unitid); | |
1da177e4 LT |
2092 | return -EINVAL; |
2093 | } | |
2094 | ||
99fc8645 DM |
2095 | for (i = 0; i < desc->bNrInPins; i++) { |
2096 | if ((err = parse_audio_unit(state, desc->baSourceID[i])) < 0) | |
1da177e4 LT |
2097 | return err; |
2098 | } | |
2099 | ||
99fc8645 | 2100 | if (desc->bNrInPins == 1) /* only one ? nonsense! */ |
1da177e4 LT |
2101 | return 0; |
2102 | ||
c3a3e040 JK |
2103 | map = find_map(state, unitid, 0); |
2104 | if (check_ignored_ctl(map)) | |
1da177e4 LT |
2105 | return 0; |
2106 | ||
561b220a | 2107 | cval = kzalloc(sizeof(*cval), GFP_KERNEL); |
a860d95f | 2108 | if (!cval) |
1da177e4 | 2109 | return -ENOMEM; |
3360b84b | 2110 | snd_usb_mixer_elem_init_std(&cval->head, state->mixer, unitid); |
1da177e4 LT |
2111 | cval->val_type = USB_MIXER_U8; |
2112 | cval->channels = 1; | |
2113 | cval->min = 1; | |
99fc8645 | 2114 | cval->max = desc->bNrInPins; |
1da177e4 LT |
2115 | cval->res = 1; |
2116 | cval->initialized = 1; | |
2117 | ||
a358a0ef | 2118 | if (state->mixer->protocol == UAC_VERSION_1) |
09414207 | 2119 | cval->control = 0; |
a358a0ef JR |
2120 | else /* UAC_VERSION_2 */ |
2121 | cval->control = (desc->bDescriptorSubtype == UAC2_CLOCK_SELECTOR) ? | |
2122 | UAC2_CX_CLOCK_SELECTOR : UAC2_SU_SELECTOR; | |
09414207 | 2123 | |
99fc8645 | 2124 | namelist = kmalloc(sizeof(char *) * desc->bNrInPins, GFP_KERNEL); |
6bc170e4 | 2125 | if (!namelist) { |
1da177e4 LT |
2126 | kfree(cval); |
2127 | return -ENOMEM; | |
2128 | } | |
2129 | #define MAX_ITEM_NAME_LEN 64 | |
99fc8645 | 2130 | for (i = 0; i < desc->bNrInPins; i++) { |
86e07d34 | 2131 | struct usb_audio_term iterm; |
1da177e4 LT |
2132 | len = 0; |
2133 | namelist[i] = kmalloc(MAX_ITEM_NAME_LEN, GFP_KERNEL); | |
6bc170e4 | 2134 | if (!namelist[i]) { |
7fbe3ca5 | 2135 | while (i--) |
1da177e4 LT |
2136 | kfree(namelist[i]); |
2137 | kfree(namelist); | |
2138 | kfree(cval); | |
2139 | return -ENOMEM; | |
2140 | } | |
8e062ec7 CL |
2141 | len = check_mapped_selector_name(state, unitid, i, namelist[i], |
2142 | MAX_ITEM_NAME_LEN); | |
99fc8645 | 2143 | if (! len && check_input_term(state, desc->baSourceID[i], &iterm) >= 0) |
1da177e4 LT |
2144 | len = get_term_name(state, &iterm, namelist[i], MAX_ITEM_NAME_LEN, 0); |
2145 | if (! len) | |
af831eef | 2146 | sprintf(namelist[i], "Input %u", i); |
1da177e4 LT |
2147 | } |
2148 | ||
2149 | kctl = snd_ctl_new1(&mixer_selectunit_ctl, cval); | |
2150 | if (! kctl) { | |
0ba41d91 | 2151 | usb_audio_err(state->chip, "cannot malloc kcontrol\n"); |
878b4789 | 2152 | kfree(namelist); |
1da177e4 LT |
2153 | kfree(cval); |
2154 | return -ENOMEM; | |
2155 | } | |
2156 | kctl->private_value = (unsigned long)namelist; | |
2157 | kctl->private_free = usb_mixer_selector_elem_free; | |
2158 | ||
99fc8645 | 2159 | nameid = uac_selector_unit_iSelector(desc); |
c3a3e040 | 2160 | len = check_mapped_name(map, kctl->id.name, sizeof(kctl->id.name)); |
1da177e4 LT |
2161 | if (len) |
2162 | ; | |
2163 | else if (nameid) | |
6bc170e4 DM |
2164 | snd_usb_copy_string_desc(state, nameid, kctl->id.name, |
2165 | sizeof(kctl->id.name)); | |
1da177e4 LT |
2166 | else { |
2167 | len = get_term_name(state, &state->oterm, | |
2168 | kctl->id.name, sizeof(kctl->id.name), 0); | |
6bc170e4 | 2169 | if (!len) |
1da177e4 LT |
2170 | strlcpy(kctl->id.name, "USB", sizeof(kctl->id.name)); |
2171 | ||
09414207 DM |
2172 | if (desc->bDescriptorSubtype == UAC2_CLOCK_SELECTOR) |
2173 | append_ctl_name(kctl, " Clock Source"); | |
2174 | else if ((state->oterm.type & 0xff00) == 0x0100) | |
08d1e635 | 2175 | append_ctl_name(kctl, " Capture Source"); |
1da177e4 | 2176 | else |
08d1e635 | 2177 | append_ctl_name(kctl, " Playback Source"); |
1da177e4 LT |
2178 | } |
2179 | ||
0ba41d91 | 2180 | usb_audio_dbg(state->chip, "[%d] SU [%s] items = %d\n", |
3360b84b TI |
2181 | cval->head.id, kctl->id.name, desc->bNrInPins); |
2182 | return snd_usb_mixer_add_control(&cval->head, kctl); | |
1da177e4 LT |
2183 | } |
2184 | ||
1da177e4 LT |
2185 | /* |
2186 | * parse an audio unit recursively | |
2187 | */ | |
2188 | ||
86e07d34 | 2189 | static int parse_audio_unit(struct mixer_build *state, int unitid) |
1da177e4 LT |
2190 | { |
2191 | unsigned char *p1; | |
2192 | ||
2193 | if (test_and_set_bit(unitid, state->unitbitmap)) | |
2194 | return 0; /* the unit already visited */ | |
2195 | ||
2196 | p1 = find_audio_control_unit(state, unitid); | |
2197 | if (!p1) { | |
0ba41d91 | 2198 | usb_audio_err(state->chip, "unit %d not found!\n", unitid); |
1da177e4 LT |
2199 | return -EINVAL; |
2200 | } | |
2201 | ||
2202 | switch (p1[2]) { | |
de48c7bc | 2203 | case UAC_INPUT_TERMINAL: |
1da177e4 | 2204 | return 0; /* NOP */ |
de48c7bc | 2205 | case UAC_MIXER_UNIT: |
1da177e4 | 2206 | return parse_audio_mixer_unit(state, unitid, p1); |
cddaafb9 DM |
2207 | case UAC2_CLOCK_SOURCE: |
2208 | return parse_clock_source_unit(state, unitid, p1); | |
de48c7bc | 2209 | case UAC_SELECTOR_UNIT: |
09414207 | 2210 | case UAC2_CLOCK_SELECTOR: |
1da177e4 | 2211 | return parse_audio_selector_unit(state, unitid, p1); |
de48c7bc | 2212 | case UAC_FEATURE_UNIT: |
1da177e4 | 2213 | return parse_audio_feature_unit(state, unitid, p1); |
69da9bcb | 2214 | case UAC1_PROCESSING_UNIT: |
23caaf19 DM |
2215 | /* UAC2_EFFECT_UNIT has the same value */ |
2216 | if (state->mixer->protocol == UAC_VERSION_1) | |
2217 | return parse_audio_processing_unit(state, unitid, p1); | |
2218 | else | |
2219 | return 0; /* FIXME - effect units not implemented yet */ | |
69da9bcb | 2220 | case UAC1_EXTENSION_UNIT: |
23caaf19 DM |
2221 | /* UAC2_PROCESSING_UNIT_V2 has the same value */ |
2222 | if (state->mixer->protocol == UAC_VERSION_1) | |
2223 | return parse_audio_extension_unit(state, unitid, p1); | |
2224 | else /* UAC_VERSION_2 */ | |
2225 | return parse_audio_processing_unit(state, unitid, p1); | |
61ac5130 TH |
2226 | case UAC2_EXTENSION_UNIT_V2: |
2227 | return parse_audio_extension_unit(state, unitid, p1); | |
1da177e4 | 2228 | default: |
0ba41d91 TI |
2229 | usb_audio_err(state->chip, |
2230 | "unit %u: unexpected type 0x%02x\n", unitid, p1[2]); | |
1da177e4 LT |
2231 | return -EINVAL; |
2232 | } | |
2233 | } | |
2234 | ||
84957a8a CL |
2235 | static void snd_usb_mixer_free(struct usb_mixer_interface *mixer) |
2236 | { | |
124751d5 TI |
2237 | /* kill pending URBs */ |
2238 | snd_usb_mixer_disconnect(mixer); | |
2239 | ||
6639b6c2 CL |
2240 | kfree(mixer->id_elems); |
2241 | if (mixer->urb) { | |
2242 | kfree(mixer->urb->transfer_buffer); | |
2243 | usb_free_urb(mixer->urb); | |
2244 | } | |
68df9de1 | 2245 | usb_free_urb(mixer->rc_urb); |
b259b10c | 2246 | kfree(mixer->rc_setup_packet); |
84957a8a CL |
2247 | kfree(mixer); |
2248 | } | |
2249 | ||
86e07d34 | 2250 | static int snd_usb_mixer_dev_free(struct snd_device *device) |
84957a8a CL |
2251 | { |
2252 | struct usb_mixer_interface *mixer = device->device_data; | |
2253 | snd_usb_mixer_free(mixer); | |
2254 | return 0; | |
2255 | } | |
2256 | ||
1da177e4 LT |
2257 | /* |
2258 | * create mixer controls | |
2259 | * | |
de48c7bc | 2260 | * walk through all UAC_OUTPUT_TERMINAL descriptors to search for mixers |
1da177e4 | 2261 | */ |
84957a8a | 2262 | static int snd_usb_mixer_controls(struct usb_mixer_interface *mixer) |
1da177e4 | 2263 | { |
86e07d34 | 2264 | struct mixer_build state; |
1da177e4 LT |
2265 | int err; |
2266 | const struct usbmix_ctl_map *map; | |
23caaf19 | 2267 | void *p; |
1da177e4 LT |
2268 | |
2269 | memset(&state, 0, sizeof(state)); | |
84957a8a CL |
2270 | state.chip = mixer->chip; |
2271 | state.mixer = mixer; | |
1faa5d07 DM |
2272 | state.buffer = mixer->hostif->extra; |
2273 | state.buflen = mixer->hostif->extralen; | |
1da177e4 LT |
2274 | |
2275 | /* check the mapping table */ | |
27d10f56 CL |
2276 | for (map = usbmix_ctl_maps; map->id; map++) { |
2277 | if (map->id == state.chip->usb_id) { | |
1da177e4 | 2278 | state.map = map->map; |
8e062ec7 | 2279 | state.selector_map = map->selector_map; |
84957a8a | 2280 | mixer->ignore_ctl_error = map->ignore_ctl_error; |
1da177e4 LT |
2281 | break; |
2282 | } | |
2283 | } | |
1da177e4 | 2284 | |
23caaf19 | 2285 | p = NULL; |
6bc170e4 DM |
2286 | while ((p = snd_usb_find_csint_desc(mixer->hostif->extra, |
2287 | mixer->hostif->extralen, | |
1faa5d07 | 2288 | p, UAC_OUTPUT_TERMINAL)) != NULL) { |
23caaf19 | 2289 | if (mixer->protocol == UAC_VERSION_1) { |
69da9bcb | 2290 | struct uac1_output_terminal_descriptor *desc = p; |
23caaf19 DM |
2291 | |
2292 | if (desc->bLength < sizeof(*desc)) | |
2293 | continue; /* invalid descriptor? */ | |
6bc170e4 DM |
2294 | /* mark terminal ID as visited */ |
2295 | set_bit(desc->bTerminalID, state.unitbitmap); | |
23caaf19 DM |
2296 | state.oterm.id = desc->bTerminalID; |
2297 | state.oterm.type = le16_to_cpu(desc->wTerminalType); | |
2298 | state.oterm.name = desc->iTerminal; | |
2299 | err = parse_audio_unit(&state, desc->bSourceID); | |
83ea5d18 | 2300 | if (err < 0 && err != -EINVAL) |
23caaf19 DM |
2301 | return err; |
2302 | } else { /* UAC_VERSION_2 */ | |
2303 | struct uac2_output_terminal_descriptor *desc = p; | |
2304 | ||
2305 | if (desc->bLength < sizeof(*desc)) | |
2306 | continue; /* invalid descriptor? */ | |
6bc170e4 DM |
2307 | /* mark terminal ID as visited */ |
2308 | set_bit(desc->bTerminalID, state.unitbitmap); | |
23caaf19 DM |
2309 | state.oterm.id = desc->bTerminalID; |
2310 | state.oterm.type = le16_to_cpu(desc->wTerminalType); | |
2311 | state.oterm.name = desc->iTerminal; | |
2312 | err = parse_audio_unit(&state, desc->bSourceID); | |
83ea5d18 | 2313 | if (err < 0 && err != -EINVAL) |
23caaf19 | 2314 | return err; |
09414207 | 2315 | |
6bc170e4 DM |
2316 | /* |
2317 | * For UAC2, use the same approach to also add the | |
2318 | * clock selectors | |
2319 | */ | |
09414207 | 2320 | err = parse_audio_unit(&state, desc->bCSourceID); |
83ea5d18 | 2321 | if (err < 0 && err != -EINVAL) |
09414207 | 2322 | return err; |
23caaf19 | 2323 | } |
1da177e4 | 2324 | } |
23caaf19 | 2325 | |
1da177e4 LT |
2326 | return 0; |
2327 | } | |
84957a8a | 2328 | |
7b1eda22 | 2329 | void snd_usb_mixer_notify_id(struct usb_mixer_interface *mixer, int unitid) |
6639b6c2 | 2330 | { |
3360b84b | 2331 | struct usb_mixer_elem_list *list; |
6639b6c2 | 2332 | |
b2500b58 JS |
2333 | for (list = mixer->id_elems[unitid]; list; list = list->next_id_elem) { |
2334 | struct usb_mixer_elem_info *info = | |
2335 | (struct usb_mixer_elem_info *)list; | |
2336 | /* invalidate cache, so the value is read from the device */ | |
2337 | info->cached = 0; | |
6639b6c2 | 2338 | snd_ctl_notify(mixer->chip->card, SNDRV_CTL_EVENT_MASK_VALUE, |
3360b84b | 2339 | &list->kctl->id); |
b2500b58 | 2340 | } |
6639b6c2 CL |
2341 | } |
2342 | ||
ebfdeea3 | 2343 | static void snd_usb_mixer_dump_cval(struct snd_info_buffer *buffer, |
3360b84b | 2344 | struct usb_mixer_elem_list *list) |
ebfdeea3 | 2345 | { |
3360b84b | 2346 | struct usb_mixer_elem_info *cval = (struct usb_mixer_elem_info *)list; |
ebfdeea3 JK |
2347 | static char *val_types[] = {"BOOLEAN", "INV_BOOLEAN", |
2348 | "S8", "U8", "S16", "U16"}; | |
ebfdeea3 | 2349 | snd_iprintf(buffer, " Info: id=%i, control=%i, cmask=0x%x, " |
3360b84b | 2350 | "channels=%i, type=\"%s\"\n", cval->head.id, |
ebfdeea3 JK |
2351 | cval->control, cval->cmask, cval->channels, |
2352 | val_types[cval->val_type]); | |
2353 | snd_iprintf(buffer, " Volume: min=%i, max=%i, dBmin=%i, dBmax=%i\n", | |
2354 | cval->min, cval->max, cval->dBmin, cval->dBmax); | |
2355 | } | |
2356 | ||
2357 | static void snd_usb_mixer_proc_read(struct snd_info_entry *entry, | |
2358 | struct snd_info_buffer *buffer) | |
2359 | { | |
2360 | struct snd_usb_audio *chip = entry->private_data; | |
2361 | struct usb_mixer_interface *mixer; | |
3360b84b | 2362 | struct usb_mixer_elem_list *list; |
ebfdeea3 JK |
2363 | int unitid; |
2364 | ||
2365 | list_for_each_entry(mixer, &chip->mixer_list, list) { | |
2366 | snd_iprintf(buffer, | |
7affdc17 | 2367 | "USB Mixer: usb_id=0x%08x, ctrlif=%i, ctlerr=%i\n", |
3d8d4dcf | 2368 | chip->usb_id, snd_usb_ctrl_intf(chip), |
7affdc17 | 2369 | mixer->ignore_ctl_error); |
ebfdeea3 JK |
2370 | snd_iprintf(buffer, "Card: %s\n", chip->card->longname); |
2371 | for (unitid = 0; unitid < MAX_ID_ELEMS; unitid++) { | |
3360b84b TI |
2372 | for (list = mixer->id_elems[unitid]; list; |
2373 | list = list->next_id_elem) { | |
2374 | snd_iprintf(buffer, " Unit: %i\n", list->id); | |
2375 | if (list->kctl) | |
2376 | snd_iprintf(buffer, | |
2377 | " Control: name=\"%s\", index=%i\n", | |
2378 | list->kctl->id.name, | |
2379 | list->kctl->id.index); | |
2380 | if (list->dump) | |
2381 | list->dump(buffer, list); | |
2382 | } | |
ebfdeea3 JK |
2383 | } |
2384 | } | |
2385 | } | |
2386 | ||
e213e9cf DM |
2387 | static void snd_usb_mixer_interrupt_v2(struct usb_mixer_interface *mixer, |
2388 | int attribute, int value, int index) | |
2389 | { | |
3360b84b | 2390 | struct usb_mixer_elem_list *list; |
e213e9cf DM |
2391 | __u8 unitid = (index >> 8) & 0xff; |
2392 | __u8 control = (value >> 8) & 0xff; | |
2393 | __u8 channel = value & 0xff; | |
191227d9 | 2394 | unsigned int count = 0; |
e213e9cf DM |
2395 | |
2396 | if (channel >= MAX_CHANNELS) { | |
0ba41d91 TI |
2397 | usb_audio_dbg(mixer->chip, |
2398 | "%s(): bogus channel number %d\n", | |
2399 | __func__, channel); | |
e213e9cf DM |
2400 | return; |
2401 | } | |
2402 | ||
191227d9 DM |
2403 | for (list = mixer->id_elems[unitid]; list; list = list->next_id_elem) |
2404 | count++; | |
2405 | ||
2406 | if (count == 0) | |
2407 | return; | |
2408 | ||
3360b84b TI |
2409 | for (list = mixer->id_elems[unitid]; list; list = list->next_id_elem) { |
2410 | struct usb_mixer_elem_info *info; | |
2411 | ||
2412 | if (!list->kctl) | |
2413 | continue; | |
2414 | ||
2415 | info = (struct usb_mixer_elem_info *)list; | |
191227d9 | 2416 | if (count > 1 && info->control != control) |
e213e9cf DM |
2417 | continue; |
2418 | ||
2419 | switch (attribute) { | |
2420 | case UAC2_CS_CUR: | |
2421 | /* invalidate cache, so the value is read from the device */ | |
2422 | if (channel) | |
2423 | info->cached &= ~(1 << channel); | |
2424 | else /* master channel */ | |
2425 | info->cached = 0; | |
2426 | ||
2427 | snd_ctl_notify(mixer->chip->card, SNDRV_CTL_EVENT_MASK_VALUE, | |
3360b84b | 2428 | &info->head.kctl->id); |
e213e9cf DM |
2429 | break; |
2430 | ||
2431 | case UAC2_CS_RANGE: | |
2432 | /* TODO */ | |
2433 | break; | |
2434 | ||
2435 | case UAC2_CS_MEM: | |
2436 | /* TODO */ | |
2437 | break; | |
2438 | ||
2439 | default: | |
0ba41d91 TI |
2440 | usb_audio_dbg(mixer->chip, |
2441 | "unknown attribute %d in interrupt\n", | |
2442 | attribute); | |
e213e9cf DM |
2443 | break; |
2444 | } /* switch */ | |
2445 | } | |
2446 | } | |
2447 | ||
2448 | static void snd_usb_mixer_interrupt(struct urb *urb) | |
6639b6c2 CL |
2449 | { |
2450 | struct usb_mixer_interface *mixer = urb->context; | |
e213e9cf | 2451 | int len = urb->actual_length; |
edf7de31 | 2452 | int ustatus = urb->status; |
e213e9cf | 2453 | |
edf7de31 | 2454 | if (ustatus != 0) |
e213e9cf | 2455 | goto requeue; |
6639b6c2 | 2456 | |
e213e9cf DM |
2457 | if (mixer->protocol == UAC_VERSION_1) { |
2458 | struct uac1_status_word *status; | |
6639b6c2 | 2459 | |
e213e9cf DM |
2460 | for (status = urb->transfer_buffer; |
2461 | len >= sizeof(*status); | |
2462 | len -= sizeof(*status), status++) { | |
0ba41d91 | 2463 | dev_dbg(&urb->dev->dev, "status interrupt: %02x %02x\n", |
e213e9cf DM |
2464 | status->bStatusType, |
2465 | status->bOriginator); | |
2466 | ||
6639b6c2 | 2467 | /* ignore any notifications not from the control interface */ |
e213e9cf DM |
2468 | if ((status->bStatusType & UAC1_STATUS_TYPE_ORIG_MASK) != |
2469 | UAC1_STATUS_TYPE_ORIG_AUDIO_CONTROL_IF) | |
6639b6c2 | 2470 | continue; |
e213e9cf DM |
2471 | |
2472 | if (status->bStatusType & UAC1_STATUS_TYPE_MEM_CHANGED) | |
2473 | snd_usb_mixer_rc_memory_change(mixer, status->bOriginator); | |
b259b10c | 2474 | else |
e213e9cf DM |
2475 | snd_usb_mixer_notify_id(mixer, status->bOriginator); |
2476 | } | |
2477 | } else { /* UAC_VERSION_2 */ | |
2478 | struct uac2_interrupt_data_msg *msg; | |
2479 | ||
2480 | for (msg = urb->transfer_buffer; | |
2481 | len >= sizeof(*msg); | |
2482 | len -= sizeof(*msg), msg++) { | |
2483 | /* drop vendor specific and endpoint requests */ | |
2484 | if ((msg->bInfo & UAC2_INTERRUPT_DATA_MSG_VENDOR) || | |
2485 | (msg->bInfo & UAC2_INTERRUPT_DATA_MSG_EP)) | |
2486 | continue; | |
2487 | ||
2488 | snd_usb_mixer_interrupt_v2(mixer, msg->bAttribute, | |
2489 | le16_to_cpu(msg->wValue), | |
2490 | le16_to_cpu(msg->wIndex)); | |
6639b6c2 CL |
2491 | } |
2492 | } | |
e213e9cf DM |
2493 | |
2494 | requeue: | |
6bc170e4 DM |
2495 | if (ustatus != -ENOENT && |
2496 | ustatus != -ECONNRESET && | |
2497 | ustatus != -ESHUTDOWN) { | |
6639b6c2 CL |
2498 | urb->dev = mixer->chip->dev; |
2499 | usb_submit_urb(urb, GFP_ATOMIC); | |
2500 | } | |
2501 | } | |
2502 | ||
2503 | /* create the handler for the optional status interrupt endpoint */ | |
2504 | static int snd_usb_mixer_status_create(struct usb_mixer_interface *mixer) | |
2505 | { | |
6639b6c2 CL |
2506 | struct usb_endpoint_descriptor *ep; |
2507 | void *transfer_buffer; | |
2508 | int buffer_length; | |
2509 | unsigned int epnum; | |
2510 | ||
6639b6c2 | 2511 | /* we need one interrupt input endpoint */ |
1faa5d07 | 2512 | if (get_iface_desc(mixer->hostif)->bNumEndpoints < 1) |
6639b6c2 | 2513 | return 0; |
1faa5d07 | 2514 | ep = get_endpoint(mixer->hostif, 0); |
913ae5a2 | 2515 | if (!usb_endpoint_dir_in(ep) || !usb_endpoint_xfer_int(ep)) |
6639b6c2 CL |
2516 | return 0; |
2517 | ||
42a6e66f | 2518 | epnum = usb_endpoint_num(ep); |
6639b6c2 CL |
2519 | buffer_length = le16_to_cpu(ep->wMaxPacketSize); |
2520 | transfer_buffer = kmalloc(buffer_length, GFP_KERNEL); | |
2521 | if (!transfer_buffer) | |
2522 | return -ENOMEM; | |
2523 | mixer->urb = usb_alloc_urb(0, GFP_KERNEL); | |
2524 | if (!mixer->urb) { | |
2525 | kfree(transfer_buffer); | |
2526 | return -ENOMEM; | |
2527 | } | |
2528 | usb_fill_int_urb(mixer->urb, mixer->chip->dev, | |
2529 | usb_rcvintpipe(mixer->chip->dev, epnum), | |
2530 | transfer_buffer, buffer_length, | |
e213e9cf | 2531 | snd_usb_mixer_interrupt, mixer, ep->bInterval); |
6639b6c2 CL |
2532 | usb_submit_urb(mixer->urb, GFP_KERNEL); |
2533 | return 0; | |
2534 | } | |
2535 | ||
7a9b8063 TI |
2536 | int snd_usb_create_mixer(struct snd_usb_audio *chip, int ctrlif, |
2537 | int ignore_error) | |
84957a8a | 2538 | { |
86e07d34 | 2539 | static struct snd_device_ops dev_ops = { |
84957a8a CL |
2540 | .dev_free = snd_usb_mixer_dev_free |
2541 | }; | |
2542 | struct usb_mixer_interface *mixer; | |
ebfdeea3 | 2543 | struct snd_info_entry *entry; |
23caaf19 | 2544 | int err; |
84957a8a CL |
2545 | |
2546 | strcpy(chip->card->mixername, "USB Mixer"); | |
2547 | ||
561b220a | 2548 | mixer = kzalloc(sizeof(*mixer), GFP_KERNEL); |
84957a8a CL |
2549 | if (!mixer) |
2550 | return -ENOMEM; | |
2551 | mixer->chip = chip; | |
7a9b8063 | 2552 | mixer->ignore_ctl_error = ignore_error; |
291186e0 JK |
2553 | mixer->id_elems = kcalloc(MAX_ID_ELEMS, sizeof(*mixer->id_elems), |
2554 | GFP_KERNEL); | |
6639b6c2 CL |
2555 | if (!mixer->id_elems) { |
2556 | kfree(mixer); | |
2557 | return -ENOMEM; | |
2558 | } | |
84957a8a | 2559 | |
1faa5d07 DM |
2560 | mixer->hostif = &usb_ifnum_to_if(chip->dev, ctrlif)->altsetting[0]; |
2561 | switch (get_iface_desc(mixer->hostif)->bInterfaceProtocol) { | |
a2acad82 CL |
2562 | case UAC_VERSION_1: |
2563 | default: | |
2564 | mixer->protocol = UAC_VERSION_1; | |
2565 | break; | |
2566 | case UAC_VERSION_2: | |
2567 | mixer->protocol = UAC_VERSION_2; | |
2568 | break; | |
2569 | } | |
7b8a043f | 2570 | |
6639b6c2 | 2571 | if ((err = snd_usb_mixer_controls(mixer)) < 0 || |
93446edc CL |
2572 | (err = snd_usb_mixer_status_create(mixer)) < 0) |
2573 | goto _error; | |
84957a8a | 2574 | |
7b1eda22 | 2575 | snd_usb_mixer_apply_create_quirk(mixer); |
468b8fde | 2576 | |
9cbb2808 | 2577 | err = snd_device_new(chip->card, SNDRV_DEV_CODEC, mixer, &dev_ops); |
93446edc CL |
2578 | if (err < 0) |
2579 | goto _error; | |
ebfdeea3 JK |
2580 | |
2581 | if (list_empty(&chip->mixer_list) && | |
2582 | !snd_card_proc_new(chip->card, "usbmixer", &entry)) | |
2583 | snd_info_set_text_ops(entry, chip, snd_usb_mixer_proc_read); | |
2584 | ||
84957a8a CL |
2585 | list_add(&mixer->list, &chip->mixer_list); |
2586 | return 0; | |
93446edc CL |
2587 | |
2588 | _error: | |
2589 | snd_usb_mixer_free(mixer); | |
2590 | return err; | |
84957a8a CL |
2591 | } |
2592 | ||
a6cece9d | 2593 | void snd_usb_mixer_disconnect(struct usb_mixer_interface *mixer) |
84957a8a | 2594 | { |
124751d5 TI |
2595 | if (mixer->disconnected) |
2596 | return; | |
2597 | if (mixer->urb) | |
2598 | usb_kill_urb(mixer->urb); | |
2599 | if (mixer->rc_urb) | |
2600 | usb_kill_urb(mixer->rc_urb); | |
2601 | mixer->disconnected = true; | |
84957a8a | 2602 | } |
400362f1 TI |
2603 | |
2604 | #ifdef CONFIG_PM | |
2605 | /* stop any bus activity of a mixer */ | |
2606 | static void snd_usb_mixer_inactivate(struct usb_mixer_interface *mixer) | |
2607 | { | |
2608 | usb_kill_urb(mixer->urb); | |
2609 | usb_kill_urb(mixer->rc_urb); | |
2610 | } | |
2611 | ||
2612 | static int snd_usb_mixer_activate(struct usb_mixer_interface *mixer) | |
2613 | { | |
2614 | int err; | |
2615 | ||
2616 | if (mixer->urb) { | |
2617 | err = usb_submit_urb(mixer->urb, GFP_NOIO); | |
2618 | if (err < 0) | |
2619 | return err; | |
2620 | } | |
2621 | ||
2622 | return 0; | |
2623 | } | |
2624 | ||
2625 | int snd_usb_mixer_suspend(struct usb_mixer_interface *mixer) | |
2626 | { | |
2627 | snd_usb_mixer_inactivate(mixer); | |
2628 | return 0; | |
2629 | } | |
2630 | ||
3360b84b | 2631 | static int restore_mixer_value(struct usb_mixer_elem_list *list) |
400362f1 | 2632 | { |
3360b84b | 2633 | struct usb_mixer_elem_info *cval = (struct usb_mixer_elem_info *)list; |
400362f1 TI |
2634 | int c, err, idx; |
2635 | ||
2636 | if (cval->cmask) { | |
2637 | idx = 0; | |
2638 | for (c = 0; c < MAX_CHANNELS; c++) { | |
2639 | if (!(cval->cmask & (1 << c))) | |
2640 | continue; | |
6aa6925c | 2641 | if (cval->cached & (1 << (c + 1))) { |
eef90451 | 2642 | err = snd_usb_set_cur_mix_value(cval, c + 1, idx, |
400362f1 TI |
2643 | cval->cache_val[idx]); |
2644 | if (err < 0) | |
2645 | return err; | |
2646 | } | |
2647 | idx++; | |
2648 | } | |
2649 | } else { | |
2650 | /* master */ | |
2651 | if (cval->cached) { | |
eef90451 | 2652 | err = snd_usb_set_cur_mix_value(cval, 0, 0, *cval->cache_val); |
400362f1 TI |
2653 | if (err < 0) |
2654 | return err; | |
2655 | } | |
2656 | } | |
2657 | ||
2658 | return 0; | |
2659 | } | |
2660 | ||
2661 | int snd_usb_mixer_resume(struct usb_mixer_interface *mixer, bool reset_resume) | |
2662 | { | |
3360b84b | 2663 | struct usb_mixer_elem_list *list; |
400362f1 TI |
2664 | int id, err; |
2665 | ||
400362f1 TI |
2666 | if (reset_resume) { |
2667 | /* restore cached mixer values */ | |
2668 | for (id = 0; id < MAX_ID_ELEMS; id++) { | |
3360b84b TI |
2669 | for (list = mixer->id_elems[id]; list; |
2670 | list = list->next_id_elem) { | |
2671 | if (list->resume) { | |
2672 | err = list->resume(list); | |
2673 | if (err < 0) | |
2674 | return err; | |
2675 | } | |
400362f1 TI |
2676 | } |
2677 | } | |
2678 | } | |
2679 | ||
2680 | return snd_usb_mixer_activate(mixer); | |
2681 | } | |
2682 | #endif | |
3360b84b TI |
2683 | |
2684 | void snd_usb_mixer_elem_init_std(struct usb_mixer_elem_list *list, | |
2685 | struct usb_mixer_interface *mixer, | |
2686 | int unitid) | |
2687 | { | |
2688 | list->mixer = mixer; | |
2689 | list->id = unitid; | |
2690 | list->dump = snd_usb_mixer_dump_cval; | |
2691 | #ifdef CONFIG_PM | |
2692 | list->resume = restore_mixer_value; | |
2693 | #endif | |
2694 | } |