Commit | Line | Data |
---|---|---|
1a59d1b8 | 1 | // SPDX-License-Identifier: GPL-2.0-or-later |
1da177e4 LT |
2 | /* |
3 | * (Tentative) USB Audio Driver for ALSA | |
4 | * | |
5 | * Mixer control part | |
6 | * | |
7 | * Copyright (c) 2002 by Takashi Iwai <tiwai@suse.de> | |
8 | * | |
9 | * Many codes borrowed from audio.c by | |
10 | * Alan Cox (alan@lxorguk.ukuu.org.uk) | |
11 | * Thomas Sailer (sailer@ife.ee.ethz.ch) | |
1da177e4 LT |
12 | */ |
13 | ||
157a57b6 DM |
14 | /* |
15 | * TODOs, for both the mixer and the streaming interfaces: | |
16 | * | |
17 | * - support for UAC2 effect units | |
18 | * - support for graphical equalizers | |
19 | * - RANGE and MEM set commands (UAC2) | |
20 | * - RANGE and MEM interrupt dispatchers (UAC2) | |
21 | * - audio channel clustering (UAC2) | |
22 | * - audio sample rate converter units (UAC2) | |
23 | * - proper handling of clock multipliers (UAC2) | |
24 | * - dispatch clock change notifications (UAC2) | |
25 | * - stop PCM streams which use a clock that became invalid | |
26 | * - stop PCM streams which use a clock selector that has changed | |
27 | * - parse available sample rates again when clock sources changed | |
28 | */ | |
29 | ||
1da177e4 LT |
30 | #include <linux/bitops.h> |
31 | #include <linux/init.h> | |
32 | #include <linux/list.h> | |
cddaafb9 | 33 | #include <linux/log2.h> |
1da177e4 LT |
34 | #include <linux/slab.h> |
35 | #include <linux/string.h> | |
36 | #include <linux/usb.h> | |
28e1b773 | 37 | #include <linux/usb/audio.h> |
23caaf19 | 38 | #include <linux/usb/audio-v2.h> |
9a2fe9b8 | 39 | #include <linux/usb/audio-v3.h> |
28e1b773 | 40 | |
1da177e4 LT |
41 | #include <sound/core.h> |
42 | #include <sound/control.h> | |
b259b10c | 43 | #include <sound/hwdep.h> |
aafad562 | 44 | #include <sound/info.h> |
7bc5ba7e | 45 | #include <sound/tlv.h> |
1da177e4 LT |
46 | |
47 | #include "usbaudio.h" | |
f0b5e634 | 48 | #include "mixer.h" |
e5779998 | 49 | #include "helper.h" |
7b1eda22 | 50 | #include "mixer_quirks.h" |
88a8516a | 51 | #include "power.h" |
4d1a70da | 52 | |
ebfdeea3 JK |
53 | #define MAX_ID_ELEMS 256 |
54 | ||
1da177e4 LT |
55 | struct usb_audio_term { |
56 | int id; | |
57 | int type; | |
58 | int channels; | |
59 | unsigned int chconfig; | |
60 | int name; | |
61 | }; | |
62 | ||
63 | struct usbmix_name_map; | |
64 | ||
86e07d34 TI |
65 | struct mixer_build { |
66 | struct snd_usb_audio *chip; | |
84957a8a | 67 | struct usb_mixer_interface *mixer; |
1da177e4 LT |
68 | unsigned char *buffer; |
69 | unsigned int buflen; | |
291186e0 | 70 | DECLARE_BITMAP(unitbitmap, MAX_ID_ELEMS); |
19bce474 | 71 | DECLARE_BITMAP(termbitmap, MAX_ID_ELEMS); |
86e07d34 | 72 | struct usb_audio_term oterm; |
1da177e4 | 73 | const struct usbmix_name_map *map; |
8e062ec7 | 74 | const struct usbmix_selector_map *selector_map; |
1da177e4 LT |
75 | }; |
76 | ||
1cdfa9f3 | 77 | /*E-mu 0202/0404/0204 eXtension Unit(XU) control*/ |
7d2b451e SK |
78 | enum { |
79 | USB_XU_CLOCK_RATE = 0xe301, | |
80 | USB_XU_CLOCK_SOURCE = 0xe302, | |
81 | USB_XU_DIGITAL_IO_STATUS = 0xe303, | |
82 | USB_XU_DEVICE_OPTIONS = 0xe304, | |
83 | USB_XU_DIRECT_MONITORING = 0xe305, | |
84 | USB_XU_METERING = 0xe306 | |
85 | }; | |
86 | enum { | |
87 | USB_XU_CLOCK_SOURCE_SELECTOR = 0x02, /* clock source*/ | |
88 | USB_XU_CLOCK_RATE_SELECTOR = 0x03, /* clock rate */ | |
89 | USB_XU_DIGITAL_FORMAT_SELECTOR = 0x01, /* the spdif format */ | |
90 | USB_XU_SOFT_LIMIT_SELECTOR = 0x03 /* soft limiter */ | |
91 | }; | |
1da177e4 LT |
92 | |
93 | /* | |
94 | * manual mapping of mixer names | |
95 | * if the mixer topology is too complicated and the parsed names are | |
96 | * ambiguous, add the entries in usbmixer_maps.c. | |
97 | */ | |
f0b5e634 | 98 | #include "mixer_maps.c" |
1da177e4 | 99 | |
c3a3e040 | 100 | static const struct usbmix_name_map * |
17156f23 | 101 | find_map(const struct usbmix_name_map *p, int unitid, int control) |
1da177e4 | 102 | { |
c3a3e040 JK |
103 | if (!p) |
104 | return NULL; | |
1da177e4 | 105 | |
17156f23 | 106 | for (; p->id; p++) { |
c3a3e040 JK |
107 | if (p->id == unitid && |
108 | (!control || !p->control || control == p->control)) | |
109 | return p; | |
1da177e4 | 110 | } |
c3a3e040 | 111 | return NULL; |
1da177e4 LT |
112 | } |
113 | ||
c3a3e040 JK |
114 | /* get the mapped name if the unit matches */ |
115 | static int | |
116 | check_mapped_name(const struct usbmix_name_map *p, char *buf, int buflen) | |
1da177e4 | 117 | { |
c3a3e040 JK |
118 | if (!p || !p->name) |
119 | return 0; | |
1da177e4 | 120 | |
c3a3e040 JK |
121 | buflen--; |
122 | return strlcpy(buf, p->name, buflen); | |
123 | } | |
124 | ||
5aeee342 TI |
125 | /* ignore the error value if ignore_ctl_error flag is set */ |
126 | #define filter_error(cval, err) \ | |
3360b84b | 127 | ((cval)->head.mixer->ignore_ctl_error ? 0 : (err)) |
5aeee342 | 128 | |
c3a3e040 JK |
129 | /* check whether the control should be ignored */ |
130 | static inline int | |
131 | check_ignored_ctl(const struct usbmix_name_map *p) | |
132 | { | |
133 | if (!p || p->name || p->dB) | |
1da177e4 | 134 | return 0; |
c3a3e040 JK |
135 | return 1; |
136 | } | |
137 | ||
138 | /* dB mapping */ | |
139 | static inline void check_mapped_dB(const struct usbmix_name_map *p, | |
140 | struct usb_mixer_elem_info *cval) | |
141 | { | |
142 | if (p && p->dB) { | |
143 | cval->dBmin = p->dB->min; | |
144 | cval->dBmax = p->dB->max; | |
38b65190 | 145 | cval->initialized = 1; |
1da177e4 | 146 | } |
1da177e4 LT |
147 | } |
148 | ||
8e062ec7 | 149 | /* get the mapped selector source name */ |
86e07d34 | 150 | static int check_mapped_selector_name(struct mixer_build *state, int unitid, |
8e062ec7 CL |
151 | int index, char *buf, int buflen) |
152 | { | |
153 | const struct usbmix_selector_map *p; | |
154 | ||
6bc170e4 | 155 | if (!state->selector_map) |
8e062ec7 CL |
156 | return 0; |
157 | for (p = state->selector_map; p->id; p++) { | |
158 | if (p->id == unitid && index < p->count) | |
159 | return strlcpy(buf, p->names[index], buflen); | |
160 | } | |
161 | return 0; | |
162 | } | |
163 | ||
1da177e4 LT |
164 | /* |
165 | * find an audio control unit with the given unit id | |
166 | */ | |
6bc170e4 DM |
167 | static void *find_audio_control_unit(struct mixer_build *state, |
168 | unsigned char unit) | |
1da177e4 | 169 | { |
67e1daa0 DM |
170 | /* we just parse the header */ |
171 | struct uac_feature_unit_descriptor *hdr = NULL; | |
172 | ||
173 | while ((hdr = snd_usb_find_desc(state->buffer, state->buflen, hdr, | |
174 | USB_DT_CS_INTERFACE)) != NULL) { | |
175 | if (hdr->bLength >= 4 && | |
176 | hdr->bDescriptorSubtype >= UAC_INPUT_TERMINAL && | |
9a2fe9b8 | 177 | hdr->bDescriptorSubtype <= UAC3_SAMPLE_RATE_CONVERTER && |
67e1daa0 DM |
178 | hdr->bUnitID == unit) |
179 | return hdr; | |
1da177e4 | 180 | } |
67e1daa0 | 181 | |
1da177e4 LT |
182 | return NULL; |
183 | } | |
184 | ||
1da177e4 LT |
185 | /* |
186 | * copy a string with the given id | |
187 | */ | |
eccfc1b8 | 188 | static int snd_usb_copy_string_desc(struct snd_usb_audio *chip, |
6bc170e4 | 189 | int index, char *buf, int maxlen) |
1da177e4 | 190 | { |
eccfc1b8 | 191 | int len = usb_string(chip->dev, index, buf, maxlen - 1); |
251552a2 JK |
192 | |
193 | if (len < 0) | |
194 | return 0; | |
195 | ||
1da177e4 LT |
196 | buf[len] = 0; |
197 | return len; | |
198 | } | |
199 | ||
200 | /* | |
201 | * convert from the byte/word on usb descriptor to the zero-based integer | |
202 | */ | |
86e07d34 | 203 | static int convert_signed_value(struct usb_mixer_elem_info *cval, int val) |
1da177e4 LT |
204 | { |
205 | switch (cval->val_type) { | |
206 | case USB_MIXER_BOOLEAN: | |
207 | return !!val; | |
208 | case USB_MIXER_INV_BOOLEAN: | |
209 | return !val; | |
210 | case USB_MIXER_U8: | |
211 | val &= 0xff; | |
212 | break; | |
213 | case USB_MIXER_S8: | |
214 | val &= 0xff; | |
215 | if (val >= 0x80) | |
216 | val -= 0x100; | |
217 | break; | |
218 | case USB_MIXER_U16: | |
219 | val &= 0xffff; | |
220 | break; | |
221 | case USB_MIXER_S16: | |
222 | val &= 0xffff; | |
223 | if (val >= 0x8000) | |
224 | val -= 0x10000; | |
225 | break; | |
226 | } | |
227 | return val; | |
228 | } | |
229 | ||
230 | /* | |
231 | * convert from the zero-based int to the byte/word for usb descriptor | |
232 | */ | |
86e07d34 | 233 | static int convert_bytes_value(struct usb_mixer_elem_info *cval, int val) |
1da177e4 LT |
234 | { |
235 | switch (cval->val_type) { | |
236 | case USB_MIXER_BOOLEAN: | |
237 | return !!val; | |
238 | case USB_MIXER_INV_BOOLEAN: | |
239 | return !val; | |
240 | case USB_MIXER_S8: | |
241 | case USB_MIXER_U8: | |
242 | return val & 0xff; | |
243 | case USB_MIXER_S16: | |
244 | case USB_MIXER_U16: | |
245 | return val & 0xffff; | |
246 | } | |
247 | return 0; /* not reached */ | |
248 | } | |
249 | ||
86e07d34 | 250 | static int get_relative_value(struct usb_mixer_elem_info *cval, int val) |
1da177e4 | 251 | { |
6bc170e4 | 252 | if (!cval->res) |
1da177e4 LT |
253 | cval->res = 1; |
254 | if (val < cval->min) | |
255 | return 0; | |
14790f1c TI |
256 | else if (val >= cval->max) |
257 | return (cval->max - cval->min + cval->res - 1) / cval->res; | |
1da177e4 LT |
258 | else |
259 | return (val - cval->min) / cval->res; | |
260 | } | |
261 | ||
86e07d34 | 262 | static int get_abs_value(struct usb_mixer_elem_info *cval, int val) |
1da177e4 LT |
263 | { |
264 | if (val < 0) | |
265 | return cval->min; | |
6bc170e4 | 266 | if (!cval->res) |
1da177e4 LT |
267 | cval->res = 1; |
268 | val *= cval->res; | |
269 | val += cval->min; | |
270 | if (val > cval->max) | |
271 | return cval->max; | |
272 | return val; | |
273 | } | |
274 | ||
bc18e31c JS |
275 | static int uac2_ctl_value_size(int val_type) |
276 | { | |
277 | switch (val_type) { | |
278 | case USB_MIXER_S32: | |
279 | case USB_MIXER_U32: | |
280 | return 4; | |
281 | case USB_MIXER_S16: | |
282 | case USB_MIXER_U16: | |
283 | return 2; | |
284 | default: | |
285 | return 1; | |
286 | } | |
287 | return 0; /* unreachable */ | |
288 | } | |
289 | ||
1da177e4 LT |
290 | |
291 | /* | |
292 | * retrieve a mixer value | |
293 | */ | |
294 | ||
6bc170e4 DM |
295 | static int get_ctl_value_v1(struct usb_mixer_elem_info *cval, int request, |
296 | int validx, int *value_ret) | |
1da177e4 | 297 | { |
3360b84b | 298 | struct snd_usb_audio *chip = cval->head.mixer->chip; |
1da177e4 LT |
299 | unsigned char buf[2]; |
300 | int val_len = cval->val_type >= USB_MIXER_S16 ? 2 : 1; | |
301 | int timeout = 10; | |
978520b7 | 302 | int idx = 0, err; |
1da177e4 | 303 | |
47ab1545 | 304 | err = snd_usb_lock_shutdown(chip); |
88a8516a ON |
305 | if (err < 0) |
306 | return -EIO; | |
6bc170e4 | 307 | |
1da177e4 | 308 | while (timeout-- > 0) { |
3360b84b | 309 | idx = snd_usb_ctrl_intf(chip) | (cval->head.id << 8); |
5a9a8eca SB |
310 | err = snd_usb_ctl_msg(chip->dev, usb_rcvctrlpipe(chip->dev, 0), request, |
311 | USB_RECIP_INTERFACE | USB_TYPE_CLASS | USB_DIR_IN, | |
312 | validx, idx, buf, val_len); | |
313 | if (err >= val_len) { | |
1da177e4 | 314 | *value_ret = convert_signed_value(cval, snd_usb_combine_bytes(buf, val_len)); |
978520b7 TI |
315 | err = 0; |
316 | goto out; | |
5a9a8eca SB |
317 | } else if (err == -ETIMEDOUT) { |
318 | goto out; | |
1da177e4 LT |
319 | } |
320 | } | |
0ba41d91 TI |
321 | usb_audio_dbg(chip, |
322 | "cannot get ctl value: req = %#x, wValue = %#x, wIndex = %#x, type = %d\n", | |
323 | request, validx, idx, cval->val_type); | |
978520b7 TI |
324 | err = -EINVAL; |
325 | ||
326 | out: | |
47ab1545 | 327 | snd_usb_unlock_shutdown(chip); |
978520b7 | 328 | return err; |
1da177e4 LT |
329 | } |
330 | ||
6bc170e4 DM |
331 | static int get_ctl_value_v2(struct usb_mixer_elem_info *cval, int request, |
332 | int validx, int *value_ret) | |
23caaf19 | 333 | { |
3360b84b | 334 | struct snd_usb_audio *chip = cval->head.mixer->chip; |
447cae58 KM |
335 | /* enough space for one range */ |
336 | unsigned char buf[sizeof(__u16) + 3 * sizeof(__u32)]; | |
23caaf19 | 337 | unsigned char *val; |
447cae58 | 338 | int idx = 0, ret, val_size, size; |
23caaf19 DM |
339 | __u8 bRequest; |
340 | ||
447cae58 KM |
341 | val_size = uac2_ctl_value_size(cval->val_type); |
342 | ||
e8bdb6bb DM |
343 | if (request == UAC_GET_CUR) { |
344 | bRequest = UAC2_CS_CUR; | |
447cae58 | 345 | size = val_size; |
e8bdb6bb DM |
346 | } else { |
347 | bRequest = UAC2_CS_RANGE; | |
447cae58 | 348 | size = sizeof(__u16) + 3 * val_size; |
e8bdb6bb DM |
349 | } |
350 | ||
351 | memset(buf, 0, sizeof(buf)); | |
23caaf19 | 352 | |
47ab1545 | 353 | ret = snd_usb_lock_shutdown(chip) ? -EIO : 0; |
88a8516a ON |
354 | if (ret) |
355 | goto error; | |
356 | ||
47ab1545 TI |
357 | idx = snd_usb_ctrl_intf(chip) | (cval->head.id << 8); |
358 | ret = snd_usb_ctl_msg(chip->dev, usb_rcvctrlpipe(chip->dev, 0), bRequest, | |
23caaf19 | 359 | USB_RECIP_INTERFACE | USB_TYPE_CLASS | USB_DIR_IN, |
978520b7 | 360 | validx, idx, buf, size); |
47ab1545 | 361 | snd_usb_unlock_shutdown(chip); |
23caaf19 DM |
362 | |
363 | if (ret < 0) { | |
88a8516a | 364 | error: |
0ba41d91 TI |
365 | usb_audio_err(chip, |
366 | "cannot get ctl value: req = %#x, wValue = %#x, wIndex = %#x, type = %d\n", | |
367 | request, validx, idx, cval->val_type); | |
23caaf19 DM |
368 | return ret; |
369 | } | |
370 | ||
e8bdb6bb DM |
371 | /* FIXME: how should we handle multiple triplets here? */ |
372 | ||
23caaf19 DM |
373 | switch (request) { |
374 | case UAC_GET_CUR: | |
375 | val = buf; | |
376 | break; | |
377 | case UAC_GET_MIN: | |
378 | val = buf + sizeof(__u16); | |
379 | break; | |
380 | case UAC_GET_MAX: | |
447cae58 | 381 | val = buf + sizeof(__u16) + val_size; |
23caaf19 DM |
382 | break; |
383 | case UAC_GET_RES: | |
447cae58 | 384 | val = buf + sizeof(__u16) + val_size * 2; |
23caaf19 DM |
385 | break; |
386 | default: | |
387 | return -EINVAL; | |
388 | } | |
389 | ||
447cae58 KM |
390 | *value_ret = convert_signed_value(cval, |
391 | snd_usb_combine_bytes(val, val_size)); | |
23caaf19 DM |
392 | |
393 | return 0; | |
394 | } | |
395 | ||
6bc170e4 DM |
396 | static int get_ctl_value(struct usb_mixer_elem_info *cval, int request, |
397 | int validx, int *value_ret) | |
23caaf19 | 398 | { |
9f814105 EZ |
399 | validx += cval->idx_off; |
400 | ||
3360b84b | 401 | return (cval->head.mixer->protocol == UAC_VERSION_1) ? |
23caaf19 DM |
402 | get_ctl_value_v1(cval, request, validx, value_ret) : |
403 | get_ctl_value_v2(cval, request, validx, value_ret); | |
404 | } | |
405 | ||
6bc170e4 DM |
406 | static int get_cur_ctl_value(struct usb_mixer_elem_info *cval, |
407 | int validx, int *value) | |
1da177e4 | 408 | { |
de48c7bc | 409 | return get_ctl_value(cval, UAC_GET_CUR, validx, value); |
1da177e4 LT |
410 | } |
411 | ||
412 | /* channel = 0: master, 1 = first channel */ | |
641b4879 TI |
413 | static inline int get_cur_mix_raw(struct usb_mixer_elem_info *cval, |
414 | int channel, int *value) | |
1da177e4 | 415 | { |
6bc170e4 DM |
416 | return get_ctl_value(cval, UAC_GET_CUR, |
417 | (cval->control << 8) | channel, | |
418 | value); | |
1da177e4 LT |
419 | } |
420 | ||
eef90451 | 421 | int snd_usb_get_cur_mix_value(struct usb_mixer_elem_info *cval, |
641b4879 TI |
422 | int channel, int index, int *value) |
423 | { | |
424 | int err; | |
425 | ||
426 | if (cval->cached & (1 << channel)) { | |
427 | *value = cval->cache_val[index]; | |
428 | return 0; | |
429 | } | |
430 | err = get_cur_mix_raw(cval, channel, value); | |
431 | if (err < 0) { | |
3360b84b TI |
432 | if (!cval->head.mixer->ignore_ctl_error) |
433 | usb_audio_dbg(cval->head.mixer->chip, | |
0ba41d91 | 434 | "cannot get current value for control %d ch %d: err = %d\n", |
6bc170e4 | 435 | cval->control, channel, err); |
641b4879 TI |
436 | return err; |
437 | } | |
438 | cval->cached |= 1 << channel; | |
439 | cval->cache_val[index] = *value; | |
440 | return 0; | |
441 | } | |
442 | ||
1da177e4 LT |
443 | /* |
444 | * set a mixer value | |
445 | */ | |
446 | ||
7b1eda22 DM |
447 | int snd_usb_mixer_set_ctl_value(struct usb_mixer_elem_info *cval, |
448 | int request, int validx, int value_set) | |
1da177e4 | 449 | { |
3360b84b | 450 | struct snd_usb_audio *chip = cval->head.mixer->chip; |
bc18e31c | 451 | unsigned char buf[4]; |
978520b7 | 452 | int idx = 0, val_len, err, timeout = 10; |
23caaf19 | 453 | |
9f814105 EZ |
454 | validx += cval->idx_off; |
455 | ||
9a2fe9b8 | 456 | |
3360b84b | 457 | if (cval->head.mixer->protocol == UAC_VERSION_1) { |
23caaf19 | 458 | val_len = cval->val_type >= USB_MIXER_S16 ? 2 : 1; |
9a2fe9b8 | 459 | } else { /* UAC_VERSION_2/3 */ |
bc18e31c | 460 | val_len = uac2_ctl_value_size(cval->val_type); |
23caaf19 DM |
461 | |
462 | /* FIXME */ | |
463 | if (request != UAC_SET_CUR) { | |
0ba41d91 | 464 | usb_audio_dbg(chip, "RANGE setting not yet supported\n"); |
23caaf19 DM |
465 | return -EINVAL; |
466 | } | |
467 | ||
468 | request = UAC2_CS_CUR; | |
469 | } | |
1da177e4 LT |
470 | |
471 | value_set = convert_bytes_value(cval, value_set); | |
472 | buf[0] = value_set & 0xff; | |
473 | buf[1] = (value_set >> 8) & 0xff; | |
bc18e31c JS |
474 | buf[2] = (value_set >> 16) & 0xff; |
475 | buf[3] = (value_set >> 24) & 0xff; | |
47ab1545 TI |
476 | |
477 | err = snd_usb_lock_shutdown(chip); | |
88a8516a ON |
478 | if (err < 0) |
479 | return -EIO; | |
47ab1545 | 480 | |
978520b7 | 481 | while (timeout-- > 0) { |
3360b84b | 482 | idx = snd_usb_ctrl_intf(chip) | (cval->head.id << 8); |
5a9a8eca SB |
483 | err = snd_usb_ctl_msg(chip->dev, |
484 | usb_sndctrlpipe(chip->dev, 0), request, | |
485 | USB_RECIP_INTERFACE | USB_TYPE_CLASS | USB_DIR_OUT, | |
486 | validx, idx, buf, val_len); | |
487 | if (err >= 0) { | |
978520b7 TI |
488 | err = 0; |
489 | goto out; | |
5a9a8eca SB |
490 | } else if (err == -ETIMEDOUT) { |
491 | goto out; | |
88a8516a | 492 | } |
978520b7 | 493 | } |
0ba41d91 | 494 | usb_audio_dbg(chip, "cannot set ctl value: req = %#x, wValue = %#x, wIndex = %#x, type = %d, data = %#x/%#x\n", |
6bc170e4 | 495 | request, validx, idx, cval->val_type, buf[0], buf[1]); |
978520b7 TI |
496 | err = -EINVAL; |
497 | ||
498 | out: | |
47ab1545 | 499 | snd_usb_unlock_shutdown(chip); |
978520b7 | 500 | return err; |
1da177e4 LT |
501 | } |
502 | ||
6bc170e4 DM |
503 | static int set_cur_ctl_value(struct usb_mixer_elem_info *cval, |
504 | int validx, int value) | |
1da177e4 | 505 | { |
7b1eda22 | 506 | return snd_usb_mixer_set_ctl_value(cval, UAC_SET_CUR, validx, value); |
1da177e4 LT |
507 | } |
508 | ||
eef90451 | 509 | int snd_usb_set_cur_mix_value(struct usb_mixer_elem_info *cval, int channel, |
641b4879 | 510 | int index, int value) |
1da177e4 | 511 | { |
641b4879 | 512 | int err; |
a6a33259 DM |
513 | unsigned int read_only = (channel == 0) ? |
514 | cval->master_readonly : | |
515 | cval->ch_readonly & (1 << (channel - 1)); | |
516 | ||
517 | if (read_only) { | |
3360b84b | 518 | usb_audio_dbg(cval->head.mixer->chip, |
0ba41d91 | 519 | "%s(): channel %d of control %d is read_only\n", |
a6a33259 DM |
520 | __func__, channel, cval->control); |
521 | return 0; | |
522 | } | |
523 | ||
6bc170e4 DM |
524 | err = snd_usb_mixer_set_ctl_value(cval, |
525 | UAC_SET_CUR, (cval->control << 8) | channel, | |
526 | value); | |
641b4879 TI |
527 | if (err < 0) |
528 | return err; | |
529 | cval->cached |= 1 << channel; | |
530 | cval->cache_val[index] = value; | |
531 | return 0; | |
1da177e4 LT |
532 | } |
533 | ||
7bc5ba7e TI |
534 | /* |
535 | * TLV callback for mixer volume controls | |
536 | */ | |
285de9c0 | 537 | int snd_usb_mixer_vol_tlv(struct snd_kcontrol *kcontrol, int op_flag, |
7bc5ba7e TI |
538 | unsigned int size, unsigned int __user *_tlv) |
539 | { | |
540 | struct usb_mixer_elem_info *cval = kcontrol->private_data; | |
b8e1c73f | 541 | DECLARE_TLV_DB_MINMAX(scale, 0, 0); |
7bc5ba7e TI |
542 | |
543 | if (size < sizeof(scale)) | |
544 | return -ENOMEM; | |
0f174b35 TI |
545 | if (cval->min_mute) |
546 | scale[0] = SNDRV_CTL_TLVT_DB_MINMAX_MUTE; | |
c3a3e040 JK |
547 | scale[2] = cval->dBmin; |
548 | scale[3] = cval->dBmax; | |
7bc5ba7e TI |
549 | if (copy_to_user(_tlv, scale, sizeof(scale))) |
550 | return -EFAULT; | |
551 | return 0; | |
552 | } | |
1da177e4 LT |
553 | |
554 | /* | |
555 | * parser routines begin here... | |
556 | */ | |
557 | ||
86e07d34 | 558 | static int parse_audio_unit(struct mixer_build *state, int unitid); |
1da177e4 LT |
559 | |
560 | ||
561 | /* | |
562 | * check if the input/output channel routing is enabled on the given bitmap. | |
563 | * used for mixer unit parser | |
564 | */ | |
6bc170e4 DM |
565 | static int check_matrix_bitmap(unsigned char *bmap, |
566 | int ich, int och, int num_outs) | |
1da177e4 LT |
567 | { |
568 | int idx = ich * num_outs + och; | |
569 | return bmap[idx >> 3] & (0x80 >> (idx & 7)); | |
570 | } | |
571 | ||
1da177e4 LT |
572 | /* |
573 | * add an alsa control element | |
574 | * search and increment the index until an empty slot is found. | |
575 | * | |
576 | * if failed, give up and free the control instance. | |
577 | */ | |
578 | ||
3360b84b | 579 | int snd_usb_mixer_add_control(struct usb_mixer_elem_list *list, |
ef9d5970 | 580 | struct snd_kcontrol *kctl) |
1da177e4 | 581 | { |
3360b84b | 582 | struct usb_mixer_interface *mixer = list->mixer; |
1da177e4 | 583 | int err; |
84957a8a | 584 | |
ef9d5970 | 585 | while (snd_ctl_find_id(mixer->chip->card, &kctl->id)) |
1da177e4 | 586 | kctl->id.index++; |
f25ecf8f TI |
587 | err = snd_ctl_add(mixer->chip->card, kctl); |
588 | if (err < 0) { | |
6bc170e4 DM |
589 | usb_audio_dbg(mixer->chip, "cannot add control (err = %d)\n", |
590 | err); | |
6639b6c2 | 591 | return err; |
1da177e4 | 592 | } |
3360b84b TI |
593 | list->kctl = kctl; |
594 | list->next_id_elem = mixer->id_elems[list->id]; | |
595 | mixer->id_elems[list->id] = list; | |
6639b6c2 | 596 | return 0; |
1da177e4 LT |
597 | } |
598 | ||
1da177e4 LT |
599 | /* |
600 | * get a terminal name string | |
601 | */ | |
602 | ||
603 | static struct iterm_name_combo { | |
604 | int type; | |
605 | char *name; | |
606 | } iterm_names[] = { | |
607 | { 0x0300, "Output" }, | |
608 | { 0x0301, "Speaker" }, | |
609 | { 0x0302, "Headphone" }, | |
610 | { 0x0303, "HMD Audio" }, | |
611 | { 0x0304, "Desktop Speaker" }, | |
612 | { 0x0305, "Room Speaker" }, | |
613 | { 0x0306, "Com Speaker" }, | |
614 | { 0x0307, "LFE" }, | |
615 | { 0x0600, "External In" }, | |
616 | { 0x0601, "Analog In" }, | |
617 | { 0x0602, "Digital In" }, | |
618 | { 0x0603, "Line" }, | |
619 | { 0x0604, "Legacy In" }, | |
620 | { 0x0605, "IEC958 In" }, | |
621 | { 0x0606, "1394 DA Stream" }, | |
622 | { 0x0607, "1394 DV Stream" }, | |
623 | { 0x0700, "Embedded" }, | |
624 | { 0x0701, "Noise Source" }, | |
625 | { 0x0702, "Equalization Noise" }, | |
626 | { 0x0703, "CD" }, | |
627 | { 0x0704, "DAT" }, | |
628 | { 0x0705, "DCC" }, | |
629 | { 0x0706, "MiniDisk" }, | |
630 | { 0x0707, "Analog Tape" }, | |
631 | { 0x0708, "Phonograph" }, | |
632 | { 0x0709, "VCR Audio" }, | |
633 | { 0x070a, "Video Disk Audio" }, | |
634 | { 0x070b, "DVD Audio" }, | |
635 | { 0x070c, "TV Tuner Audio" }, | |
636 | { 0x070d, "Satellite Rec Audio" }, | |
637 | { 0x070e, "Cable Tuner Audio" }, | |
638 | { 0x070f, "DSS Audio" }, | |
639 | { 0x0710, "Radio Receiver" }, | |
640 | { 0x0711, "Radio Transmitter" }, | |
641 | { 0x0712, "Multi-Track Recorder" }, | |
642 | { 0x0713, "Synthesizer" }, | |
643 | { 0 }, | |
644 | }; | |
645 | ||
eccfc1b8 | 646 | static int get_term_name(struct snd_usb_audio *chip, struct usb_audio_term *iterm, |
1da177e4 LT |
647 | unsigned char *name, int maxlen, int term_only) |
648 | { | |
649 | struct iterm_name_combo *names; | |
56a23ee5 | 650 | int len; |
1da177e4 | 651 | |
56a23ee5 | 652 | if (iterm->name) { |
eccfc1b8 | 653 | len = snd_usb_copy_string_desc(chip, iterm->name, |
6bc170e4 | 654 | name, maxlen); |
56a23ee5 TI |
655 | if (len) |
656 | return len; | |
657 | } | |
1da177e4 LT |
658 | |
659 | /* virtual type - not a real terminal */ | |
660 | if (iterm->type >> 16) { | |
661 | if (term_only) | |
662 | return 0; | |
663 | switch (iterm->type >> 16) { | |
8b3a087f | 664 | case UAC3_SELECTOR_UNIT: |
6bc170e4 DM |
665 | strcpy(name, "Selector"); |
666 | return 8; | |
8b3a087f | 667 | case UAC3_PROCESSING_UNIT: |
6bc170e4 DM |
668 | strcpy(name, "Process Unit"); |
669 | return 12; | |
8b3a087f | 670 | case UAC3_EXTENSION_UNIT: |
6bc170e4 DM |
671 | strcpy(name, "Ext Unit"); |
672 | return 8; | |
8b3a087f | 673 | case UAC3_MIXER_UNIT: |
6bc170e4 DM |
674 | strcpy(name, "Mixer"); |
675 | return 5; | |
1da177e4 LT |
676 | default: |
677 | return sprintf(name, "Unit %d", iterm->id); | |
678 | } | |
679 | } | |
680 | ||
681 | switch (iterm->type & 0xff00) { | |
682 | case 0x0100: | |
6bc170e4 DM |
683 | strcpy(name, "PCM"); |
684 | return 3; | |
1da177e4 | 685 | case 0x0200: |
6bc170e4 DM |
686 | strcpy(name, "Mic"); |
687 | return 3; | |
1da177e4 | 688 | case 0x0400: |
6bc170e4 DM |
689 | strcpy(name, "Headset"); |
690 | return 7; | |
1da177e4 | 691 | case 0x0500: |
6bc170e4 DM |
692 | strcpy(name, "Phone"); |
693 | return 5; | |
1da177e4 LT |
694 | } |
695 | ||
6bc170e4 | 696 | for (names = iterm_names; names->type; names++) { |
1da177e4 LT |
697 | if (names->type == iterm->type) { |
698 | strcpy(name, names->name); | |
699 | return strlen(names->name); | |
700 | } | |
6bc170e4 DM |
701 | } |
702 | ||
1da177e4 LT |
703 | return 0; |
704 | } | |
705 | ||
6cfd839a JS |
706 | /* |
707 | * Get logical cluster information for UAC3 devices. | |
708 | */ | |
709 | static int get_cluster_channels_v3(struct mixer_build *state, unsigned int cluster_id) | |
710 | { | |
711 | struct uac3_cluster_header_descriptor c_header; | |
712 | int err; | |
713 | ||
714 | err = snd_usb_ctl_msg(state->chip->dev, | |
715 | usb_rcvctrlpipe(state->chip->dev, 0), | |
716 | UAC3_CS_REQ_HIGH_CAPABILITY_DESCRIPTOR, | |
717 | USB_RECIP_INTERFACE | USB_TYPE_CLASS | USB_DIR_IN, | |
718 | cluster_id, | |
719 | snd_usb_ctrl_intf(state->chip), | |
720 | &c_header, sizeof(c_header)); | |
721 | if (err < 0) | |
722 | goto error; | |
723 | if (err != sizeof(c_header)) { | |
724 | err = -EIO; | |
725 | goto error; | |
726 | } | |
727 | ||
728 | return c_header.bNrChannels; | |
729 | ||
730 | error: | |
731 | usb_audio_err(state->chip, "cannot request logical cluster ID: %d (err: %d)\n", cluster_id, err); | |
732 | return err; | |
733 | } | |
734 | ||
735 | /* | |
736 | * Get number of channels for a Mixer Unit. | |
737 | */ | |
738 | static int uac_mixer_unit_get_channels(struct mixer_build *state, | |
739 | struct uac_mixer_unit_descriptor *desc) | |
740 | { | |
741 | int mu_channels; | |
6cfd839a JS |
742 | |
743 | switch (state->mixer->protocol) { | |
744 | case UAC_VERSION_1: | |
745 | case UAC_VERSION_2: | |
746 | default: | |
0bfe5e43 TI |
747 | if (desc->bLength < sizeof(*desc) + desc->bNrInPins + 1) |
748 | return 0; /* no bmControls -> skip */ | |
6cfd839a JS |
749 | mu_channels = uac_mixer_unit_bNrChannels(desc); |
750 | break; | |
751 | case UAC_VERSION_3: | |
752 | mu_channels = get_cluster_channels_v3(state, | |
753 | uac3_mixer_unit_wClusterDescrID(desc)); | |
754 | break; | |
755 | } | |
756 | ||
6cfd839a JS |
757 | return mu_channels; |
758 | } | |
759 | ||
e0ccdef9 TI |
760 | /* |
761 | * Parse Input Terminal Unit | |
762 | */ | |
763 | static int __check_input_term(struct mixer_build *state, int id, | |
764 | struct usb_audio_term *term); | |
765 | ||
766 | static int parse_term_uac1_iterm_unit(struct mixer_build *state, | |
767 | struct usb_audio_term *term, | |
768 | void *p1, int id) | |
769 | { | |
770 | struct uac_input_terminal_descriptor *d = p1; | |
771 | ||
772 | term->type = le16_to_cpu(d->wTerminalType); | |
773 | term->channels = d->bNrChannels; | |
774 | term->chconfig = le16_to_cpu(d->wChannelConfig); | |
775 | term->name = d->iTerminal; | |
776 | return 0; | |
777 | } | |
778 | ||
779 | static int parse_term_uac2_iterm_unit(struct mixer_build *state, | |
780 | struct usb_audio_term *term, | |
781 | void *p1, int id) | |
782 | { | |
783 | struct uac2_input_terminal_descriptor *d = p1; | |
784 | int err; | |
785 | ||
786 | /* call recursively to verify the referenced clock entity */ | |
787 | err = __check_input_term(state, d->bCSourceID, term); | |
788 | if (err < 0) | |
789 | return err; | |
790 | ||
791 | /* save input term properties after recursion, | |
792 | * to ensure they are not overriden by the recursion calls | |
793 | */ | |
794 | term->id = id; | |
795 | term->type = le16_to_cpu(d->wTerminalType); | |
796 | term->channels = d->bNrChannels; | |
797 | term->chconfig = le32_to_cpu(d->bmChannelConfig); | |
798 | term->name = d->iTerminal; | |
799 | return 0; | |
800 | } | |
801 | ||
802 | static int parse_term_uac3_iterm_unit(struct mixer_build *state, | |
803 | struct usb_audio_term *term, | |
804 | void *p1, int id) | |
805 | { | |
806 | struct uac3_input_terminal_descriptor *d = p1; | |
807 | int err; | |
808 | ||
809 | /* call recursively to verify the referenced clock entity */ | |
810 | err = __check_input_term(state, d->bCSourceID, term); | |
811 | if (err < 0) | |
812 | return err; | |
813 | ||
814 | /* save input term properties after recursion, | |
815 | * to ensure they are not overriden by the recursion calls | |
816 | */ | |
817 | term->id = id; | |
818 | term->type = le16_to_cpu(d->wTerminalType); | |
819 | ||
820 | err = get_cluster_channels_v3(state, le16_to_cpu(d->wClusterDescrID)); | |
821 | if (err < 0) | |
822 | return err; | |
823 | term->channels = err; | |
824 | ||
825 | /* REVISIT: UAC3 IT doesn't have channels cfg */ | |
826 | term->chconfig = 0; | |
827 | ||
828 | term->name = le16_to_cpu(d->wTerminalDescrStr); | |
829 | return 0; | |
830 | } | |
831 | ||
832 | static int parse_term_mixer_unit(struct mixer_build *state, | |
833 | struct usb_audio_term *term, | |
834 | void *p1, int id) | |
835 | { | |
836 | struct uac_mixer_unit_descriptor *d = p1; | |
837 | int protocol = state->mixer->protocol; | |
838 | int err; | |
839 | ||
840 | err = uac_mixer_unit_get_channels(state, d); | |
841 | if (err <= 0) | |
842 | return err; | |
843 | ||
844 | term->type = UAC3_MIXER_UNIT << 16; /* virtual type */ | |
845 | term->channels = err; | |
846 | if (protocol != UAC_VERSION_3) { | |
847 | term->chconfig = uac_mixer_unit_wChannelConfig(d, protocol); | |
848 | term->name = uac_mixer_unit_iMixer(d); | |
849 | } | |
850 | return 0; | |
851 | } | |
852 | ||
853 | static int parse_term_selector_unit(struct mixer_build *state, | |
854 | struct usb_audio_term *term, | |
855 | void *p1, int id) | |
856 | { | |
857 | struct uac_selector_unit_descriptor *d = p1; | |
858 | int err; | |
859 | ||
860 | /* call recursively to retrieve the channel info */ | |
861 | err = __check_input_term(state, d->baSourceID[0], term); | |
862 | if (err < 0) | |
863 | return err; | |
864 | term->type = UAC3_SELECTOR_UNIT << 16; /* virtual type */ | |
865 | term->id = id; | |
866 | if (state->mixer->protocol != UAC_VERSION_3) | |
867 | term->name = uac_selector_unit_iSelector(d); | |
868 | return 0; | |
869 | } | |
870 | ||
871 | static int parse_term_proc_unit(struct mixer_build *state, | |
872 | struct usb_audio_term *term, | |
873 | void *p1, int id, int vtype) | |
874 | { | |
875 | struct uac_processing_unit_descriptor *d = p1; | |
876 | int protocol = state->mixer->protocol; | |
877 | int err; | |
878 | ||
879 | if (d->bNrInPins) { | |
880 | /* call recursively to retrieve the channel info */ | |
881 | err = __check_input_term(state, d->baSourceID[0], term); | |
882 | if (err < 0) | |
883 | return err; | |
884 | } | |
885 | ||
886 | term->type = vtype << 16; /* virtual type */ | |
887 | term->id = id; | |
888 | ||
889 | if (protocol == UAC_VERSION_3) | |
890 | return 0; | |
891 | ||
892 | if (!term->channels) { | |
893 | term->channels = uac_processing_unit_bNrChannels(d); | |
894 | term->chconfig = uac_processing_unit_wChannelConfig(d, protocol); | |
895 | } | |
896 | term->name = uac_processing_unit_iProcessing(d, protocol); | |
897 | return 0; | |
898 | } | |
899 | ||
900 | static int parse_term_uac2_clock_source(struct mixer_build *state, | |
901 | struct usb_audio_term *term, | |
902 | void *p1, int id) | |
903 | { | |
904 | struct uac_clock_source_descriptor *d = p1; | |
905 | ||
906 | term->type = UAC3_CLOCK_SOURCE << 16; /* virtual type */ | |
907 | term->id = id; | |
908 | term->name = d->iClockSource; | |
909 | return 0; | |
910 | } | |
911 | ||
912 | static int parse_term_uac3_clock_source(struct mixer_build *state, | |
913 | struct usb_audio_term *term, | |
914 | void *p1, int id) | |
915 | { | |
916 | struct uac3_clock_source_descriptor *d = p1; | |
917 | ||
918 | term->type = UAC3_CLOCK_SOURCE << 16; /* virtual type */ | |
919 | term->id = id; | |
920 | term->name = le16_to_cpu(d->wClockSourceStr); | |
921 | return 0; | |
922 | } | |
923 | ||
924 | #define PTYPE(a, b) ((a) << 8 | (b)) | |
925 | ||
1da177e4 LT |
926 | /* |
927 | * parse the source unit recursively until it reaches to a terminal | |
928 | * or a branched unit. | |
929 | */ | |
19bce474 | 930 | static int __check_input_term(struct mixer_build *state, int id, |
e0ccdef9 | 931 | struct usb_audio_term *term) |
1da177e4 | 932 | { |
9a2fe9b8 | 933 | int protocol = state->mixer->protocol; |
23caaf19 | 934 | void *p1; |
19bce474 | 935 | unsigned char *hdr; |
1da177e4 | 936 | |
19bce474 HP |
937 | for (;;) { |
938 | /* a loop in the terminal chain? */ | |
939 | if (test_and_set_bit(id, state->termbitmap)) | |
940 | return -EINVAL; | |
941 | ||
942 | p1 = find_audio_control_unit(state, id); | |
943 | if (!p1) | |
944 | break; | |
57f87706 TI |
945 | if (!snd_usb_validate_audio_desc(p1, protocol)) |
946 | break; /* bad descriptor */ | |
19bce474 HP |
947 | |
948 | hdr = p1; | |
1da177e4 | 949 | term->id = id; |
9a2fe9b8 | 950 | |
e0ccdef9 TI |
951 | switch (PTYPE(protocol, hdr[2])) { |
952 | case PTYPE(UAC_VERSION_1, UAC_FEATURE_UNIT): | |
953 | case PTYPE(UAC_VERSION_2, UAC_FEATURE_UNIT): | |
954 | case PTYPE(UAC_VERSION_3, UAC3_FEATURE_UNIT): { | |
955 | /* the header is the same for all versions */ | |
956 | struct uac_feature_unit_descriptor *d = p1; | |
9a2fe9b8 | 957 | |
e0ccdef9 TI |
958 | id = d->bSourceID; |
959 | break; /* continue to parse */ | |
960 | } | |
961 | case PTYPE(UAC_VERSION_1, UAC_INPUT_TERMINAL): | |
962 | return parse_term_uac1_iterm_unit(state, term, p1, id); | |
963 | case PTYPE(UAC_VERSION_2, UAC_INPUT_TERMINAL): | |
964 | return parse_term_uac2_iterm_unit(state, term, p1, id); | |
965 | case PTYPE(UAC_VERSION_3, UAC_INPUT_TERMINAL): | |
966 | return parse_term_uac3_iterm_unit(state, term, p1, id); | |
967 | case PTYPE(UAC_VERSION_1, UAC_MIXER_UNIT): | |
968 | case PTYPE(UAC_VERSION_2, UAC_MIXER_UNIT): | |
969 | case PTYPE(UAC_VERSION_3, UAC3_MIXER_UNIT): | |
970 | return parse_term_mixer_unit(state, term, p1, id); | |
971 | case PTYPE(UAC_VERSION_1, UAC_SELECTOR_UNIT): | |
972 | case PTYPE(UAC_VERSION_2, UAC_SELECTOR_UNIT): | |
973 | case PTYPE(UAC_VERSION_2, UAC2_CLOCK_SELECTOR): | |
974 | case PTYPE(UAC_VERSION_3, UAC3_SELECTOR_UNIT): | |
975 | case PTYPE(UAC_VERSION_3, UAC3_CLOCK_SELECTOR): | |
976 | return parse_term_selector_unit(state, term, p1, id); | |
977 | case PTYPE(UAC_VERSION_1, UAC1_PROCESSING_UNIT): | |
978 | case PTYPE(UAC_VERSION_2, UAC2_PROCESSING_UNIT_V2): | |
979 | case PTYPE(UAC_VERSION_3, UAC3_PROCESSING_UNIT): | |
980 | return parse_term_proc_unit(state, term, p1, id, | |
981 | UAC3_PROCESSING_UNIT); | |
982 | case PTYPE(UAC_VERSION_2, UAC2_EFFECT_UNIT): | |
983 | case PTYPE(UAC_VERSION_3, UAC3_EFFECT_UNIT): | |
984 | return parse_term_proc_unit(state, term, p1, id, | |
985 | UAC3_EFFECT_UNIT); | |
986 | case PTYPE(UAC_VERSION_1, UAC1_EXTENSION_UNIT): | |
987 | case PTYPE(UAC_VERSION_2, UAC2_EXTENSION_UNIT_V2): | |
988 | case PTYPE(UAC_VERSION_3, UAC3_EXTENSION_UNIT): | |
989 | return parse_term_proc_unit(state, term, p1, id, | |
990 | UAC3_EXTENSION_UNIT); | |
991 | case PTYPE(UAC_VERSION_2, UAC2_CLOCK_SOURCE): | |
992 | return parse_term_uac2_clock_source(state, term, p1, id); | |
993 | case PTYPE(UAC_VERSION_3, UAC3_CLOCK_SOURCE): | |
994 | return parse_term_uac3_clock_source(state, term, p1, id); | |
995 | default: | |
996 | return -ENODEV; | |
1da177e4 LT |
997 | } |
998 | } | |
999 | return -ENODEV; | |
1000 | } | |
1001 | ||
19bce474 HP |
1002 | |
1003 | static int check_input_term(struct mixer_build *state, int id, | |
1004 | struct usb_audio_term *term) | |
1005 | { | |
1006 | memset(term, 0, sizeof(*term)); | |
1007 | memset(state->termbitmap, 0, sizeof(state->termbitmap)); | |
1008 | return __check_input_term(state, id, term); | |
1009 | } | |
1010 | ||
1da177e4 LT |
1011 | /* |
1012 | * Feature Unit | |
1013 | */ | |
1014 | ||
1015 | /* feature unit control information */ | |
1016 | struct usb_feature_control_info { | |
21e9b3e9 | 1017 | int control; |
1da177e4 | 1018 | const char *name; |
bc18e31c JS |
1019 | int type; /* data type for uac1 */ |
1020 | int type_uac2; /* data type for uac2 if different from uac1, else -1 */ | |
1da177e4 LT |
1021 | }; |
1022 | ||
1023 | static struct usb_feature_control_info audio_feature_info[] = { | |
21e9b3e9 AC |
1024 | { UAC_FU_MUTE, "Mute", USB_MIXER_INV_BOOLEAN, -1 }, |
1025 | { UAC_FU_VOLUME, "Volume", USB_MIXER_S16, -1 }, | |
1026 | { UAC_FU_BASS, "Tone Control - Bass", USB_MIXER_S8, -1 }, | |
1027 | { UAC_FU_MID, "Tone Control - Mid", USB_MIXER_S8, -1 }, | |
1028 | { UAC_FU_TREBLE, "Tone Control - Treble", USB_MIXER_S8, -1 }, | |
1029 | { UAC_FU_GRAPHIC_EQUALIZER, "Graphic Equalizer", USB_MIXER_S8, -1 }, /* FIXME: not implemented yet */ | |
1030 | { UAC_FU_AUTOMATIC_GAIN, "Auto Gain Control", USB_MIXER_BOOLEAN, -1 }, | |
1031 | { UAC_FU_DELAY, "Delay Control", USB_MIXER_U16, USB_MIXER_U32 }, | |
1032 | { UAC_FU_BASS_BOOST, "Bass Boost", USB_MIXER_BOOLEAN, -1 }, | |
1033 | { UAC_FU_LOUDNESS, "Loudness", USB_MIXER_BOOLEAN, -1 }, | |
2e0281d1 | 1034 | /* UAC2 specific */ |
21e9b3e9 AC |
1035 | { UAC2_FU_INPUT_GAIN, "Input Gain Control", USB_MIXER_S16, -1 }, |
1036 | { UAC2_FU_INPUT_GAIN_PAD, "Input Gain Pad Control", USB_MIXER_S16, -1 }, | |
1037 | { UAC2_FU_PHASE_INVERTER, "Phase Inverter Control", USB_MIXER_BOOLEAN, -1 }, | |
1da177e4 LT |
1038 | }; |
1039 | ||
52c3e317 TI |
1040 | static void usb_mixer_elem_info_free(struct usb_mixer_elem_info *cval) |
1041 | { | |
1042 | kfree(cval); | |
1043 | } | |
1044 | ||
1da177e4 | 1045 | /* private_free callback */ |
eef90451 | 1046 | void snd_usb_mixer_elem_free(struct snd_kcontrol *kctl) |
1da177e4 | 1047 | { |
52c3e317 | 1048 | usb_mixer_elem_info_free(kctl->private_data); |
4d572776 | 1049 | kctl->private_data = NULL; |
1da177e4 LT |
1050 | } |
1051 | ||
1da177e4 LT |
1052 | /* |
1053 | * interface to ALSA control for feature/mixer units | |
1054 | */ | |
1055 | ||
dcaaf9f2 TI |
1056 | /* volume control quirks */ |
1057 | static void volume_control_quirks(struct usb_mixer_elem_info *cval, | |
1058 | struct snd_kcontrol *kctl) | |
1059 | { | |
3360b84b | 1060 | struct snd_usb_audio *chip = cval->head.mixer->chip; |
0ba41d91 | 1061 | switch (chip->usb_id) { |
d50ed624 | 1062 | case USB_ID(0x0763, 0x2030): /* M-Audio Fast Track C400 */ |
e9a25e04 | 1063 | case USB_ID(0x0763, 0x2031): /* M-Audio Fast Track C600 */ |
d50ed624 EZ |
1064 | if (strcmp(kctl->id.name, "Effect Duration") == 0) { |
1065 | cval->min = 0x0000; | |
1066 | cval->max = 0xffff; | |
1067 | cval->res = 0x00e6; | |
1068 | break; | |
1069 | } | |
1070 | if (strcmp(kctl->id.name, "Effect Volume") == 0 || | |
1071 | strcmp(kctl->id.name, "Effect Feedback Volume") == 0) { | |
1072 | cval->min = 0x00; | |
1073 | cval->max = 0xff; | |
1074 | break; | |
1075 | } | |
1076 | if (strstr(kctl->id.name, "Effect Return") != NULL) { | |
1077 | cval->min = 0xb706; | |
1078 | cval->max = 0xff7b; | |
1079 | cval->res = 0x0073; | |
1080 | break; | |
1081 | } | |
1082 | if ((strstr(kctl->id.name, "Playback Volume") != NULL) || | |
1083 | (strstr(kctl->id.name, "Effect Send") != NULL)) { | |
1084 | cval->min = 0xb5fb; /* -73 dB = 0xb6ff */ | |
1085 | cval->max = 0xfcfe; | |
1086 | cval->res = 0x0073; | |
1087 | } | |
1088 | break; | |
1089 | ||
d34bf148 FH |
1090 | case USB_ID(0x0763, 0x2081): /* M-Audio Fast Track Ultra 8R */ |
1091 | case USB_ID(0x0763, 0x2080): /* M-Audio Fast Track Ultra */ | |
1092 | if (strcmp(kctl->id.name, "Effect Duration") == 0) { | |
0ba41d91 TI |
1093 | usb_audio_info(chip, |
1094 | "set quirk for FTU Effect Duration\n"); | |
d34bf148 FH |
1095 | cval->min = 0x0000; |
1096 | cval->max = 0x7f00; | |
1097 | cval->res = 0x0100; | |
1098 | break; | |
1099 | } | |
1100 | if (strcmp(kctl->id.name, "Effect Volume") == 0 || | |
1101 | strcmp(kctl->id.name, "Effect Feedback Volume") == 0) { | |
0ba41d91 TI |
1102 | usb_audio_info(chip, |
1103 | "set quirks for FTU Effect Feedback/Volume\n"); | |
d34bf148 FH |
1104 | cval->min = 0x00; |
1105 | cval->max = 0x7f; | |
1106 | break; | |
1107 | } | |
1108 | break; | |
1109 | ||
21493316 FC |
1110 | case USB_ID(0x0d8c, 0x0103): |
1111 | if (!strcmp(kctl->id.name, "PCM Playback Volume")) { | |
1112 | usb_audio_info(chip, | |
1113 | "set volume quirk for CM102-A+/102S+\n"); | |
1114 | cval->min = -256; | |
1115 | } | |
1116 | break; | |
1117 | ||
dcaaf9f2 TI |
1118 | case USB_ID(0x0471, 0x0101): |
1119 | case USB_ID(0x0471, 0x0104): | |
1120 | case USB_ID(0x0471, 0x0105): | |
1121 | case USB_ID(0x0672, 0x1041): | |
1122 | /* quirk for UDA1321/N101. | |
1123 | * note that detection between firmware 2.1.1.7 (N101) | |
1124 | * and later 2.1.1.21 is not very clear from datasheets. | |
1125 | * I hope that the min value is -15360 for newer firmware --jk | |
1126 | */ | |
1127 | if (!strcmp(kctl->id.name, "PCM Playback Volume") && | |
1128 | cval->min == -15616) { | |
0ba41d91 | 1129 | usb_audio_info(chip, |
dcaaf9f2 TI |
1130 | "set volume quirk for UDA1321/N101 chip\n"); |
1131 | cval->max = -256; | |
1132 | } | |
1133 | break; | |
1134 | ||
1135 | case USB_ID(0x046d, 0x09a4): | |
1136 | if (!strcmp(kctl->id.name, "Mic Capture Volume")) { | |
0ba41d91 | 1137 | usb_audio_info(chip, |
dcaaf9f2 TI |
1138 | "set volume quirk for QuickCam E3500\n"); |
1139 | cval->min = 6080; | |
1140 | cval->max = 8768; | |
1141 | cval->res = 192; | |
1142 | } | |
1143 | break; | |
1144 | ||
e805ca8b | 1145 | case USB_ID(0x046d, 0x0807): /* Logitech Webcam C500 */ |
dcaaf9f2 TI |
1146 | case USB_ID(0x046d, 0x0808): |
1147 | case USB_ID(0x046d, 0x0809): | |
64559311 | 1148 | case USB_ID(0x046d, 0x0819): /* Logitech Webcam C210 */ |
36691e1b | 1149 | case USB_ID(0x046d, 0x081b): /* HD Webcam c310 */ |
55c0008b | 1150 | case USB_ID(0x046d, 0x081d): /* HD Webcam c510 */ |
11e7064f | 1151 | case USB_ID(0x046d, 0x0825): /* HD Webcam c270 */ |
140d37de | 1152 | case USB_ID(0x046d, 0x0826): /* HD Webcam c525 */ |
1ef9f058 | 1153 | case USB_ID(0x046d, 0x08ca): /* Logitech Quickcam Fusion */ |
dcaaf9f2 | 1154 | case USB_ID(0x046d, 0x0991): |
82ffb6fc | 1155 | case USB_ID(0x046d, 0x09a2): /* QuickCam Communicate Deluxe/S7500 */ |
dcaaf9f2 TI |
1156 | /* Most audio usb devices lie about volume resolution. |
1157 | * Most Logitech webcams have res = 384. | |
82ffb6fc | 1158 | * Probably there is some logitech magic behind this number --fishor |
dcaaf9f2 TI |
1159 | */ |
1160 | if (!strcmp(kctl->id.name, "Mic Capture Volume")) { | |
0ba41d91 | 1161 | usb_audio_info(chip, |
dcaaf9f2 TI |
1162 | "set resolution quirk: cval->res = 384\n"); |
1163 | cval->res = 384; | |
1164 | } | |
1165 | break; | |
dcaaf9f2 TI |
1166 | } |
1167 | } | |
1168 | ||
1da177e4 LT |
1169 | /* |
1170 | * retrieve the minimum and maximum values for the specified control | |
1171 | */ | |
dcaaf9f2 TI |
1172 | static int get_min_max_with_quirks(struct usb_mixer_elem_info *cval, |
1173 | int default_min, struct snd_kcontrol *kctl) | |
1da177e4 LT |
1174 | { |
1175 | /* for failsafe */ | |
1176 | cval->min = default_min; | |
1177 | cval->max = cval->min + 1; | |
1178 | cval->res = 1; | |
c3a3e040 | 1179 | cval->dBmin = cval->dBmax = 0; |
1da177e4 LT |
1180 | |
1181 | if (cval->val_type == USB_MIXER_BOOLEAN || | |
1182 | cval->val_type == USB_MIXER_INV_BOOLEAN) { | |
1183 | cval->initialized = 1; | |
1184 | } else { | |
1185 | int minchn = 0; | |
1186 | if (cval->cmask) { | |
1187 | int i; | |
1188 | for (i = 0; i < MAX_CHANNELS; i++) | |
1189 | if (cval->cmask & (1 << i)) { | |
1190 | minchn = i + 1; | |
1191 | break; | |
1192 | } | |
1193 | } | |
de48c7bc DM |
1194 | if (get_ctl_value(cval, UAC_GET_MAX, (cval->control << 8) | minchn, &cval->max) < 0 || |
1195 | get_ctl_value(cval, UAC_GET_MIN, (cval->control << 8) | minchn, &cval->min) < 0) { | |
3360b84b | 1196 | usb_audio_err(cval->head.mixer->chip, |
0ba41d91 | 1197 | "%d:%d: cannot get min/max values for control %d (id %d)\n", |
3360b84b TI |
1198 | cval->head.id, snd_usb_ctrl_intf(cval->head.mixer->chip), |
1199 | cval->control, cval->head.id); | |
1da177e4 LT |
1200 | return -EINVAL; |
1201 | } | |
6bc170e4 DM |
1202 | if (get_ctl_value(cval, UAC_GET_RES, |
1203 | (cval->control << 8) | minchn, | |
1204 | &cval->res) < 0) { | |
1da177e4 LT |
1205 | cval->res = 1; |
1206 | } else { | |
1207 | int last_valid_res = cval->res; | |
1208 | ||
1209 | while (cval->res > 1) { | |
7b1eda22 | 1210 | if (snd_usb_mixer_set_ctl_value(cval, UAC_SET_RES, |
6bc170e4 DM |
1211 | (cval->control << 8) | minchn, |
1212 | cval->res / 2) < 0) | |
1da177e4 LT |
1213 | break; |
1214 | cval->res /= 2; | |
1215 | } | |
6bc170e4 DM |
1216 | if (get_ctl_value(cval, UAC_GET_RES, |
1217 | (cval->control << 8) | minchn, &cval->res) < 0) | |
1da177e4 LT |
1218 | cval->res = last_valid_res; |
1219 | } | |
1220 | if (cval->res == 0) | |
1221 | cval->res = 1; | |
14790f1c TI |
1222 | |
1223 | /* Additional checks for the proper resolution | |
1224 | * | |
1225 | * Some devices report smaller resolutions than actually | |
1226 | * reacting. They don't return errors but simply clip | |
1227 | * to the lower aligned value. | |
1228 | */ | |
1229 | if (cval->min + cval->res < cval->max) { | |
1230 | int last_valid_res = cval->res; | |
1231 | int saved, test, check; | |
167beb17 TI |
1232 | if (get_cur_mix_raw(cval, minchn, &saved) < 0) |
1233 | goto no_res_check; | |
14790f1c TI |
1234 | for (;;) { |
1235 | test = saved; | |
1236 | if (test < cval->max) | |
1237 | test += cval->res; | |
1238 | else | |
1239 | test -= cval->res; | |
1240 | if (test < cval->min || test > cval->max || | |
eef90451 | 1241 | snd_usb_set_cur_mix_value(cval, minchn, 0, test) || |
641b4879 | 1242 | get_cur_mix_raw(cval, minchn, &check)) { |
14790f1c TI |
1243 | cval->res = last_valid_res; |
1244 | break; | |
1245 | } | |
1246 | if (test == check) | |
1247 | break; | |
1248 | cval->res *= 2; | |
1249 | } | |
eef90451 | 1250 | snd_usb_set_cur_mix_value(cval, minchn, 0, saved); |
14790f1c TI |
1251 | } |
1252 | ||
167beb17 | 1253 | no_res_check: |
1da177e4 LT |
1254 | cval->initialized = 1; |
1255 | } | |
c3a3e040 | 1256 | |
dcaaf9f2 TI |
1257 | if (kctl) |
1258 | volume_control_quirks(cval, kctl); | |
1259 | ||
c3a3e040 JK |
1260 | /* USB descriptions contain the dB scale in 1/256 dB unit |
1261 | * while ALSA TLV contains in 1/100 dB unit | |
1262 | */ | |
1263 | cval->dBmin = (convert_signed_value(cval, cval->min) * 100) / 256; | |
1264 | cval->dBmax = (convert_signed_value(cval, cval->max) * 100) / 256; | |
1265 | if (cval->dBmin > cval->dBmax) { | |
1266 | /* something is wrong; assume it's either from/to 0dB */ | |
1267 | if (cval->dBmin < 0) | |
1268 | cval->dBmax = 0; | |
1269 | else if (cval->dBmin > 0) | |
1270 | cval->dBmin = 0; | |
1271 | if (cval->dBmin > cval->dBmax) { | |
1272 | /* totally crap, return an error */ | |
1273 | return -EINVAL; | |
1274 | } | |
1275 | } | |
1276 | ||
1da177e4 LT |
1277 | return 0; |
1278 | } | |
1279 | ||
dcaaf9f2 | 1280 | #define get_min_max(cval, def) get_min_max_with_quirks(cval, def, NULL) |
1da177e4 LT |
1281 | |
1282 | /* get a feature/mixer unit info */ | |
6bc170e4 DM |
1283 | static int mixer_ctl_feature_info(struct snd_kcontrol *kcontrol, |
1284 | struct snd_ctl_elem_info *uinfo) | |
1da177e4 | 1285 | { |
86e07d34 | 1286 | struct usb_mixer_elem_info *cval = kcontrol->private_data; |
1da177e4 LT |
1287 | |
1288 | if (cval->val_type == USB_MIXER_BOOLEAN || | |
1289 | cval->val_type == USB_MIXER_INV_BOOLEAN) | |
1290 | uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN; | |
1291 | else | |
1292 | uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER; | |
1293 | uinfo->count = cval->channels; | |
1294 | if (cval->val_type == USB_MIXER_BOOLEAN || | |
1295 | cval->val_type == USB_MIXER_INV_BOOLEAN) { | |
1296 | uinfo->value.integer.min = 0; | |
1297 | uinfo->value.integer.max = 1; | |
1298 | } else { | |
9fcd0ab1 | 1299 | if (!cval->initialized) { |
dcaaf9f2 | 1300 | get_min_max_with_quirks(cval, 0, kcontrol); |
9fcd0ab1 TI |
1301 | if (cval->initialized && cval->dBmin >= cval->dBmax) { |
1302 | kcontrol->vd[0].access &= | |
1303 | ~(SNDRV_CTL_ELEM_ACCESS_TLV_READ | | |
1304 | SNDRV_CTL_ELEM_ACCESS_TLV_CALLBACK); | |
3360b84b | 1305 | snd_ctl_notify(cval->head.mixer->chip->card, |
9fcd0ab1 TI |
1306 | SNDRV_CTL_EVENT_MASK_INFO, |
1307 | &kcontrol->id); | |
1308 | } | |
1309 | } | |
1da177e4 | 1310 | uinfo->value.integer.min = 0; |
14790f1c TI |
1311 | uinfo->value.integer.max = |
1312 | (cval->max - cval->min + cval->res - 1) / cval->res; | |
1da177e4 LT |
1313 | } |
1314 | return 0; | |
1315 | } | |
1316 | ||
1317 | /* get the current value from feature/mixer unit */ | |
6bc170e4 DM |
1318 | static int mixer_ctl_feature_get(struct snd_kcontrol *kcontrol, |
1319 | struct snd_ctl_elem_value *ucontrol) | |
1da177e4 | 1320 | { |
86e07d34 | 1321 | struct usb_mixer_elem_info *cval = kcontrol->private_data; |
1da177e4 LT |
1322 | int c, cnt, val, err; |
1323 | ||
641b4879 | 1324 | ucontrol->value.integer.value[0] = cval->min; |
1da177e4 LT |
1325 | if (cval->cmask) { |
1326 | cnt = 0; | |
1327 | for (c = 0; c < MAX_CHANNELS; c++) { | |
641b4879 TI |
1328 | if (!(cval->cmask & (1 << c))) |
1329 | continue; | |
eef90451 | 1330 | err = snd_usb_get_cur_mix_value(cval, c + 1, cnt, &val); |
641b4879 | 1331 | if (err < 0) |
5aeee342 | 1332 | return filter_error(cval, err); |
641b4879 TI |
1333 | val = get_relative_value(cval, val); |
1334 | ucontrol->value.integer.value[cnt] = val; | |
1335 | cnt++; | |
1da177e4 | 1336 | } |
641b4879 | 1337 | return 0; |
1da177e4 LT |
1338 | } else { |
1339 | /* master channel */ | |
eef90451 | 1340 | err = snd_usb_get_cur_mix_value(cval, 0, 0, &val); |
641b4879 | 1341 | if (err < 0) |
5aeee342 | 1342 | return filter_error(cval, err); |
1da177e4 LT |
1343 | val = get_relative_value(cval, val); |
1344 | ucontrol->value.integer.value[0] = val; | |
1345 | } | |
1346 | return 0; | |
1347 | } | |
1348 | ||
1349 | /* put the current value to feature/mixer unit */ | |
6bc170e4 DM |
1350 | static int mixer_ctl_feature_put(struct snd_kcontrol *kcontrol, |
1351 | struct snd_ctl_elem_value *ucontrol) | |
1da177e4 | 1352 | { |
86e07d34 | 1353 | struct usb_mixer_elem_info *cval = kcontrol->private_data; |
1da177e4 LT |
1354 | int c, cnt, val, oval, err; |
1355 | int changed = 0; | |
1356 | ||
1357 | if (cval->cmask) { | |
1358 | cnt = 0; | |
1359 | for (c = 0; c < MAX_CHANNELS; c++) { | |
641b4879 TI |
1360 | if (!(cval->cmask & (1 << c))) |
1361 | continue; | |
eef90451 | 1362 | err = snd_usb_get_cur_mix_value(cval, c + 1, cnt, &oval); |
641b4879 | 1363 | if (err < 0) |
5aeee342 | 1364 | return filter_error(cval, err); |
641b4879 TI |
1365 | val = ucontrol->value.integer.value[cnt]; |
1366 | val = get_abs_value(cval, val); | |
1367 | if (oval != val) { | |
eef90451 | 1368 | snd_usb_set_cur_mix_value(cval, c + 1, cnt, val); |
641b4879 | 1369 | changed = 1; |
1da177e4 | 1370 | } |
641b4879 | 1371 | cnt++; |
1da177e4 LT |
1372 | } |
1373 | } else { | |
1374 | /* master channel */ | |
eef90451 | 1375 | err = snd_usb_get_cur_mix_value(cval, 0, 0, &oval); |
1da177e4 | 1376 | if (err < 0) |
5aeee342 | 1377 | return filter_error(cval, err); |
1da177e4 LT |
1378 | val = ucontrol->value.integer.value[0]; |
1379 | val = get_abs_value(cval, val); | |
1380 | if (val != oval) { | |
eef90451 | 1381 | snd_usb_set_cur_mix_value(cval, 0, 0, val); |
1da177e4 LT |
1382 | changed = 1; |
1383 | } | |
1384 | } | |
1385 | return changed; | |
1386 | } | |
1387 | ||
568fa7e0 AC |
1388 | /* get the boolean value from the master channel of a UAC control */ |
1389 | static int mixer_ctl_master_bool_get(struct snd_kcontrol *kcontrol, | |
1390 | struct snd_ctl_elem_value *ucontrol) | |
5a222e84 AC |
1391 | { |
1392 | struct usb_mixer_elem_info *cval = kcontrol->private_data; | |
1393 | int val, err; | |
1394 | ||
1395 | err = snd_usb_get_cur_mix_value(cval, 0, 0, &val); | |
1396 | if (err < 0) | |
1397 | return filter_error(cval, err); | |
1398 | val = (val != 0); | |
1399 | ucontrol->value.integer.value[0] = val; | |
1400 | return 0; | |
1401 | } | |
1402 | ||
1d38f5d8 JS |
1403 | /* get the connectors status and report it as boolean type */ |
1404 | static int mixer_ctl_connector_get(struct snd_kcontrol *kcontrol, | |
1405 | struct snd_ctl_elem_value *ucontrol) | |
1406 | { | |
1407 | struct usb_mixer_elem_info *cval = kcontrol->private_data; | |
1408 | struct snd_usb_audio *chip = cval->head.mixer->chip; | |
1409 | int idx = 0, validx, ret, val; | |
1410 | ||
1411 | validx = cval->control << 8 | 0; | |
1412 | ||
1413 | ret = snd_usb_lock_shutdown(chip) ? -EIO : 0; | |
1414 | if (ret) | |
1415 | goto error; | |
1416 | ||
1417 | idx = snd_usb_ctrl_intf(chip) | (cval->head.id << 8); | |
1418 | if (cval->head.mixer->protocol == UAC_VERSION_2) { | |
1419 | struct uac2_connectors_ctl_blk uac2_conn; | |
1420 | ||
1421 | ret = snd_usb_ctl_msg(chip->dev, usb_rcvctrlpipe(chip->dev, 0), UAC2_CS_CUR, | |
1422 | USB_RECIP_INTERFACE | USB_TYPE_CLASS | USB_DIR_IN, | |
1423 | validx, idx, &uac2_conn, sizeof(uac2_conn)); | |
1424 | val = !!uac2_conn.bNrChannels; | |
1425 | } else { /* UAC_VERSION_3 */ | |
1426 | struct uac3_insertion_ctl_blk uac3_conn; | |
1427 | ||
1428 | ret = snd_usb_ctl_msg(chip->dev, usb_rcvctrlpipe(chip->dev, 0), UAC2_CS_CUR, | |
1429 | USB_RECIP_INTERFACE | USB_TYPE_CLASS | USB_DIR_IN, | |
1430 | validx, idx, &uac3_conn, sizeof(uac3_conn)); | |
1431 | val = !!uac3_conn.bmConInserted; | |
1432 | } | |
1433 | ||
1434 | snd_usb_unlock_shutdown(chip); | |
1435 | ||
1436 | if (ret < 0) { | |
1437 | error: | |
1438 | usb_audio_err(chip, | |
1439 | "cannot get connectors status: req = %#x, wValue = %#x, wIndex = %#x, type = %d\n", | |
1440 | UAC_GET_CUR, validx, idx, cval->val_type); | |
1441 | return ret; | |
1442 | } | |
1443 | ||
1444 | ucontrol->value.integer.value[0] = val; | |
1445 | return 0; | |
1446 | } | |
1447 | ||
86e07d34 | 1448 | static struct snd_kcontrol_new usb_feature_unit_ctl = { |
1da177e4 LT |
1449 | .iface = SNDRV_CTL_ELEM_IFACE_MIXER, |
1450 | .name = "", /* will be filled later manually */ | |
1451 | .info = mixer_ctl_feature_info, | |
1452 | .get = mixer_ctl_feature_get, | |
1453 | .put = mixer_ctl_feature_put, | |
1454 | }; | |
1455 | ||
23caaf19 | 1456 | /* the read-only variant */ |
8fdaebbb | 1457 | static const struct snd_kcontrol_new usb_feature_unit_ctl_ro = { |
23caaf19 DM |
1458 | .iface = SNDRV_CTL_ELEM_IFACE_MIXER, |
1459 | .name = "", /* will be filled later manually */ | |
1460 | .info = mixer_ctl_feature_info, | |
1461 | .get = mixer_ctl_feature_get, | |
1462 | .put = NULL, | |
1463 | }; | |
1464 | ||
568fa7e0 AC |
1465 | /* |
1466 | * A control which shows the boolean value from reading a UAC control on | |
1467 | * the master channel. | |
1468 | */ | |
1469 | static struct snd_kcontrol_new usb_bool_master_control_ctl_ro = { | |
5a222e84 AC |
1470 | .iface = SNDRV_CTL_ELEM_IFACE_CARD, |
1471 | .name = "", /* will be filled later manually */ | |
1472 | .access = SNDRV_CTL_ELEM_ACCESS_READ, | |
1473 | .info = snd_ctl_boolean_mono_info, | |
568fa7e0 | 1474 | .get = mixer_ctl_master_bool_get, |
5a222e84 AC |
1475 | .put = NULL, |
1476 | }; | |
1477 | ||
1d38f5d8 JS |
1478 | static const struct snd_kcontrol_new usb_connector_ctl_ro = { |
1479 | .iface = SNDRV_CTL_ELEM_IFACE_CARD, | |
1480 | .name = "", /* will be filled later manually */ | |
1481 | .access = SNDRV_CTL_ELEM_ACCESS_READ, | |
1482 | .info = snd_ctl_boolean_mono_info, | |
1483 | .get = mixer_ctl_connector_get, | |
1484 | .put = NULL, | |
1485 | }; | |
1486 | ||
6bc170e4 DM |
1487 | /* |
1488 | * This symbol is exported in order to allow the mixer quirks to | |
1489 | * hook up to the standard feature unit control mechanism | |
1490 | */ | |
9e38658f | 1491 | struct snd_kcontrol_new *snd_usb_feature_unit_ctl = &usb_feature_unit_ctl; |
1da177e4 LT |
1492 | |
1493 | /* | |
1494 | * build a feature control | |
1495 | */ | |
08d1e635 TI |
1496 | static size_t append_ctl_name(struct snd_kcontrol *kctl, const char *str) |
1497 | { | |
1498 | return strlcat(kctl->id.name, str, sizeof(kctl->id.name)); | |
1499 | } | |
1500 | ||
6bc170e4 DM |
1501 | /* |
1502 | * A lot of headsets/headphones have a "Speaker" mixer. Make sure we | |
1503 | * rename it to "Headphone". We determine if something is a headphone | |
1504 | * similar to how udev determines form factor. | |
1505 | */ | |
9b4ef977 DH |
1506 | static void check_no_speaker_on_headset(struct snd_kcontrol *kctl, |
1507 | struct snd_card *card) | |
1508 | { | |
1509 | const char *names_to_check[] = { | |
1510 | "Headset", "headset", "Headphone", "headphone", NULL}; | |
1511 | const char **s; | |
e0f17c75 | 1512 | bool found = false; |
9b4ef977 DH |
1513 | |
1514 | if (strcmp("Speaker", kctl->id.name)) | |
1515 | return; | |
1516 | ||
1517 | for (s = names_to_check; *s; s++) | |
1518 | if (strstr(card->shortname, *s)) { | |
e0f17c75 | 1519 | found = true; |
9b4ef977 DH |
1520 | break; |
1521 | } | |
1522 | ||
1523 | if (!found) | |
1524 | return; | |
1525 | ||
1526 | strlcpy(kctl->id.name, "Headphone", sizeof(kctl->id.name)); | |
1527 | } | |
1528 | ||
21e9b3e9 AC |
1529 | static struct usb_feature_control_info *get_feature_control_info(int control) |
1530 | { | |
1531 | int i; | |
1532 | ||
1533 | for (i = 0; i < ARRAY_SIZE(audio_feature_info); ++i) { | |
1534 | if (audio_feature_info[i].control == control) | |
1535 | return &audio_feature_info[i]; | |
1536 | } | |
1537 | return NULL; | |
1538 | } | |
1539 | ||
17156f23 RB |
1540 | static void __build_feature_ctl(struct usb_mixer_interface *mixer, |
1541 | const struct usbmix_name_map *imap, | |
1542 | unsigned int ctl_mask, int control, | |
1543 | struct usb_audio_term *iterm, | |
1544 | struct usb_audio_term *oterm, | |
1545 | int unitid, int nameid, int readonly_mask) | |
1da177e4 | 1546 | { |
bc18e31c | 1547 | struct usb_feature_control_info *ctl_info; |
1da177e4 LT |
1548 | unsigned int len = 0; |
1549 | int mapped_name = 0; | |
86e07d34 TI |
1550 | struct snd_kcontrol *kctl; |
1551 | struct usb_mixer_elem_info *cval; | |
c3a3e040 | 1552 | const struct usbmix_name_map *map; |
80acefff | 1553 | unsigned int range; |
1da177e4 | 1554 | |
65f25da4 | 1555 | if (control == UAC_FU_GRAPHIC_EQUALIZER) { |
1da177e4 LT |
1556 | /* FIXME: not supported yet */ |
1557 | return; | |
1558 | } | |
1559 | ||
17156f23 | 1560 | map = find_map(imap, unitid, control); |
c3a3e040 | 1561 | if (check_ignored_ctl(map)) |
1da177e4 LT |
1562 | return; |
1563 | ||
561b220a | 1564 | cval = kzalloc(sizeof(*cval), GFP_KERNEL); |
a860d95f | 1565 | if (!cval) |
1da177e4 | 1566 | return; |
17156f23 | 1567 | snd_usb_mixer_elem_init_std(&cval->head, mixer, unitid); |
1da177e4 LT |
1568 | cval->control = control; |
1569 | cval->cmask = ctl_mask; | |
21e9b3e9 AC |
1570 | |
1571 | ctl_info = get_feature_control_info(control); | |
62376025 | 1572 | if (!ctl_info) { |
52c3e317 | 1573 | usb_mixer_elem_info_free(cval); |
21e9b3e9 | 1574 | return; |
62376025 | 1575 | } |
17156f23 | 1576 | if (mixer->protocol == UAC_VERSION_1) |
bc18e31c JS |
1577 | cval->val_type = ctl_info->type; |
1578 | else /* UAC_VERSION_2 */ | |
1579 | cval->val_type = ctl_info->type_uac2 >= 0 ? | |
1580 | ctl_info->type_uac2 : ctl_info->type; | |
1581 | ||
a6a33259 | 1582 | if (ctl_mask == 0) { |
1da177e4 | 1583 | cval->channels = 1; /* master channel */ |
a6a33259 DM |
1584 | cval->master_readonly = readonly_mask; |
1585 | } else { | |
1da177e4 LT |
1586 | int i, c = 0; |
1587 | for (i = 0; i < 16; i++) | |
1588 | if (ctl_mask & (1 << i)) | |
1589 | c++; | |
1590 | cval->channels = c; | |
a6a33259 | 1591 | cval->ch_readonly = readonly_mask; |
1da177e4 LT |
1592 | } |
1593 | ||
6bc170e4 DM |
1594 | /* |
1595 | * If all channels in the mask are marked read-only, make the control | |
eef90451 | 1596 | * read-only. snd_usb_set_cur_mix_value() will check the mask again and won't |
6bc170e4 DM |
1597 | * issue write commands to read-only channels. |
1598 | */ | |
a6a33259 | 1599 | if (cval->channels == readonly_mask) |
23caaf19 DM |
1600 | kctl = snd_ctl_new1(&usb_feature_unit_ctl_ro, cval); |
1601 | else | |
1602 | kctl = snd_ctl_new1(&usb_feature_unit_ctl, cval); | |
1603 | ||
6bc170e4 | 1604 | if (!kctl) { |
17156f23 | 1605 | usb_audio_err(mixer->chip, "cannot malloc kcontrol\n"); |
52c3e317 | 1606 | usb_mixer_elem_info_free(cval); |
1da177e4 LT |
1607 | return; |
1608 | } | |
eef90451 | 1609 | kctl->private_free = snd_usb_mixer_elem_free; |
1da177e4 | 1610 | |
c3a3e040 | 1611 | len = check_mapped_name(map, kctl->id.name, sizeof(kctl->id.name)); |
1da177e4 | 1612 | mapped_name = len != 0; |
6bc170e4 | 1613 | if (!len && nameid) |
17156f23 | 1614 | len = snd_usb_copy_string_desc(mixer->chip, nameid, |
c3a3e040 | 1615 | kctl->id.name, sizeof(kctl->id.name)); |
1da177e4 LT |
1616 | |
1617 | switch (control) { | |
65f25da4 DM |
1618 | case UAC_FU_MUTE: |
1619 | case UAC_FU_VOLUME: | |
6bc170e4 DM |
1620 | /* |
1621 | * determine the control name. the rule is: | |
1da177e4 LT |
1622 | * - if a name id is given in descriptor, use it. |
1623 | * - if the connected input can be determined, then use the name | |
1624 | * of terminal type. | |
1625 | * - if the connected output can be determined, use it. | |
1626 | * - otherwise, anonymous name. | |
1627 | */ | |
6bc170e4 | 1628 | if (!len) { |
17156f23 RB |
1629 | if (iterm) |
1630 | len = get_term_name(mixer->chip, iterm, | |
1631 | kctl->id.name, | |
1632 | sizeof(kctl->id.name), 1); | |
1633 | if (!len && oterm) | |
1634 | len = get_term_name(mixer->chip, oterm, | |
6bc170e4 DM |
1635 | kctl->id.name, |
1636 | sizeof(kctl->id.name), 1); | |
1637 | if (!len) | |
49fd46d2 DM |
1638 | snprintf(kctl->id.name, sizeof(kctl->id.name), |
1639 | "Feature %d", unitid); | |
1da177e4 | 1640 | } |
9b4ef977 DH |
1641 | |
1642 | if (!mapped_name) | |
17156f23 | 1643 | check_no_speaker_on_headset(kctl, mixer->chip->card); |
9b4ef977 | 1644 | |
6bc170e4 DM |
1645 | /* |
1646 | * determine the stream direction: | |
1da177e4 LT |
1647 | * if the connected output is USB stream, then it's likely a |
1648 | * capture stream. otherwise it should be playback (hopefully :) | |
1649 | */ | |
17156f23 RB |
1650 | if (!mapped_name && oterm && !(oterm->type >> 16)) { |
1651 | if ((oterm->type & 0xff00) == 0x0100) | |
49fd46d2 | 1652 | append_ctl_name(kctl, " Capture"); |
6bc170e4 | 1653 | else |
49fd46d2 | 1654 | append_ctl_name(kctl, " Playback"); |
1da177e4 | 1655 | } |
65f25da4 | 1656 | append_ctl_name(kctl, control == UAC_FU_MUTE ? |
08d1e635 | 1657 | " Switch" : " Volume"); |
1da177e4 | 1658 | break; |
1da177e4 | 1659 | default: |
6bc170e4 | 1660 | if (!len) |
1da177e4 LT |
1661 | strlcpy(kctl->id.name, audio_feature_info[control-1].name, |
1662 | sizeof(kctl->id.name)); | |
1663 | break; | |
1664 | } | |
1665 | ||
e182534d TI |
1666 | /* get min/max values */ |
1667 | get_min_max_with_quirks(cval, 0, kctl); | |
1668 | ||
1669 | if (control == UAC_FU_VOLUME) { | |
1670 | check_mapped_dB(map, cval); | |
1671 | if (cval->dBmin < cval->dBmax || !cval->initialized) { | |
1672 | kctl->tlv.c = snd_usb_mixer_vol_tlv; | |
1673 | kctl->vd[0].access |= | |
1674 | SNDRV_CTL_ELEM_ACCESS_TLV_READ | | |
1675 | SNDRV_CTL_ELEM_ACCESS_TLV_CALLBACK; | |
1676 | } | |
1677 | } | |
1678 | ||
17156f23 | 1679 | snd_usb_mixer_fu_apply_quirk(mixer, cval, unitid, kctl); |
42e3121d | 1680 | |
80acefff | 1681 | range = (cval->max - cval->min) / cval->res; |
6bc170e4 DM |
1682 | /* |
1683 | * Are there devices with volume range more than 255? I use a bit more | |
80acefff AF |
1684 | * to be sure. 384 is a resolution magic number found on Logitech |
1685 | * devices. It will definitively catch all buggy Logitech devices. | |
1686 | */ | |
1687 | if (range > 384) { | |
17156f23 | 1688 | usb_audio_warn(mixer->chip, |
82c1cf0a | 1689 | "Warning! Unlikely big volume range (=%u), cval->res is probably wrong.", |
6bc170e4 | 1690 | range); |
17156f23 | 1691 | usb_audio_warn(mixer->chip, |
82c1cf0a | 1692 | "[%d] FU [%s] ch = %d, val = %d/%d/%d", |
3360b84b | 1693 | cval->head.id, kctl->id.name, cval->channels, |
6bc170e4 | 1694 | cval->min, cval->max, cval->res); |
80acefff AF |
1695 | } |
1696 | ||
17156f23 | 1697 | usb_audio_dbg(mixer->chip, "[%d] FU [%s] ch = %d, val = %d/%d/%d\n", |
3360b84b | 1698 | cval->head.id, kctl->id.name, cval->channels, |
6bc170e4 | 1699 | cval->min, cval->max, cval->res); |
3360b84b | 1700 | snd_usb_mixer_add_control(&cval->head, kctl); |
1da177e4 LT |
1701 | } |
1702 | ||
17156f23 RB |
1703 | static void build_feature_ctl(struct mixer_build *state, void *raw_desc, |
1704 | unsigned int ctl_mask, int control, | |
1705 | struct usb_audio_term *iterm, int unitid, | |
1706 | int readonly_mask) | |
1707 | { | |
1708 | struct uac_feature_unit_descriptor *desc = raw_desc; | |
1709 | int nameid = uac_feature_unit_iFeature(desc); | |
1710 | ||
1711 | __build_feature_ctl(state->mixer, state->map, ctl_mask, control, | |
1712 | iterm, &state->oterm, unitid, nameid, readonly_mask); | |
1713 | } | |
1714 | ||
1715 | static void build_feature_ctl_badd(struct usb_mixer_interface *mixer, | |
1716 | unsigned int ctl_mask, int control, int unitid, | |
1717 | const struct usbmix_name_map *badd_map) | |
1718 | { | |
1719 | __build_feature_ctl(mixer, badd_map, ctl_mask, control, | |
1720 | NULL, NULL, unitid, 0, 0); | |
1721 | } | |
1722 | ||
167e1fb1 | 1723 | static void get_connector_control_name(struct usb_mixer_interface *mixer, |
5a222e84 AC |
1724 | struct usb_audio_term *term, |
1725 | bool is_input, char *name, int name_size) | |
1726 | { | |
167e1fb1 | 1727 | int name_len = get_term_name(mixer->chip, term, name, name_size, 0); |
5a222e84 AC |
1728 | |
1729 | if (name_len == 0) | |
1730 | strlcpy(name, "Unknown", name_size); | |
1731 | ||
1732 | /* | |
1733 | * sound/core/ctljack.c has a convention of naming jack controls | |
1734 | * by ending in " Jack". Make it slightly more useful by | |
1735 | * indicating Input or Output after the terminal name. | |
1736 | */ | |
1737 | if (is_input) | |
1738 | strlcat(name, " - Input Jack", name_size); | |
1739 | else | |
1740 | strlcat(name, " - Output Jack", name_size); | |
1741 | } | |
1742 | ||
1743 | /* Build a mixer control for a UAC connector control (jack-detect) */ | |
167e1fb1 | 1744 | static void build_connector_control(struct usb_mixer_interface *mixer, |
5a222e84 AC |
1745 | struct usb_audio_term *term, bool is_input) |
1746 | { | |
1747 | struct snd_kcontrol *kctl; | |
1748 | struct usb_mixer_elem_info *cval; | |
1749 | ||
1750 | cval = kzalloc(sizeof(*cval), GFP_KERNEL); | |
1751 | if (!cval) | |
1752 | return; | |
167e1fb1 | 1753 | snd_usb_mixer_elem_init_std(&cval->head, mixer, term->id); |
568fa7e0 | 1754 | /* |
1d38f5d8 JS |
1755 | * UAC2: The first byte from reading the UAC2_TE_CONNECTOR control returns the |
1756 | * number of channels connected. | |
1757 | * | |
1758 | * UAC3: The first byte specifies size of bitmap for the inserted controls. The | |
1759 | * following byte(s) specifies which connectors are inserted. | |
1760 | * | |
1761 | * This boolean ctl will simply report if any channels are connected | |
1762 | * or not. | |
568fa7e0 | 1763 | */ |
167e1fb1 | 1764 | if (mixer->protocol == UAC_VERSION_2) |
1d38f5d8 JS |
1765 | cval->control = UAC2_TE_CONNECTOR; |
1766 | else /* UAC_VERSION_3 */ | |
1767 | cval->control = UAC3_TE_INSERTION; | |
1768 | ||
5a222e84 AC |
1769 | cval->val_type = USB_MIXER_BOOLEAN; |
1770 | cval->channels = 1; /* report true if any channel is connected */ | |
1771 | cval->min = 0; | |
1772 | cval->max = 1; | |
1d38f5d8 | 1773 | kctl = snd_ctl_new1(&usb_connector_ctl_ro, cval); |
5a222e84 | 1774 | if (!kctl) { |
167e1fb1 | 1775 | usb_audio_err(mixer->chip, "cannot malloc kcontrol\n"); |
52c3e317 | 1776 | usb_mixer_elem_info_free(cval); |
5a222e84 AC |
1777 | return; |
1778 | } | |
167e1fb1 | 1779 | get_connector_control_name(mixer, term, is_input, kctl->id.name, |
5a222e84 AC |
1780 | sizeof(kctl->id.name)); |
1781 | kctl->private_free = snd_usb_mixer_elem_free; | |
1782 | snd_usb_mixer_add_control(&cval->head, kctl); | |
1783 | } | |
1784 | ||
cddaafb9 DM |
1785 | static int parse_clock_source_unit(struct mixer_build *state, int unitid, |
1786 | void *_ftr) | |
1787 | { | |
1788 | struct uac_clock_source_descriptor *hdr = _ftr; | |
1789 | struct usb_mixer_elem_info *cval; | |
1790 | struct snd_kcontrol *kctl; | |
1791 | char name[SNDRV_CTL_ELEM_ID_NAME_MAXLEN]; | |
1792 | int ret; | |
1793 | ||
1794 | if (state->mixer->protocol != UAC_VERSION_2) | |
1795 | return -EINVAL; | |
1796 | ||
cddaafb9 DM |
1797 | /* |
1798 | * The only property of this unit we are interested in is the | |
1799 | * clock source validity. If that isn't readable, just bail out. | |
1800 | */ | |
9a2fe9b8 | 1801 | if (!uac_v2v3_control_is_readable(hdr->bmControls, |
21e9b3e9 | 1802 | UAC2_CS_CONTROL_CLOCK_VALID)) |
cddaafb9 DM |
1803 | return 0; |
1804 | ||
1805 | cval = kzalloc(sizeof(*cval), GFP_KERNEL); | |
1806 | if (!cval) | |
1807 | return -ENOMEM; | |
1808 | ||
1809 | snd_usb_mixer_elem_init_std(&cval->head, state->mixer, hdr->bClockID); | |
1810 | ||
1811 | cval->min = 0; | |
1812 | cval->max = 1; | |
1813 | cval->channels = 1; | |
1814 | cval->val_type = USB_MIXER_BOOLEAN; | |
1815 | cval->control = UAC2_CS_CONTROL_CLOCK_VALID; | |
1816 | ||
568fa7e0 AC |
1817 | cval->master_readonly = 1; |
1818 | /* From UAC2 5.2.5.1.2 "Only the get request is supported." */ | |
1819 | kctl = snd_ctl_new1(&usb_bool_master_control_ctl_ro, cval); | |
cddaafb9 DM |
1820 | |
1821 | if (!kctl) { | |
52c3e317 | 1822 | usb_mixer_elem_info_free(cval); |
cddaafb9 DM |
1823 | return -ENOMEM; |
1824 | } | |
1825 | ||
1826 | kctl->private_free = snd_usb_mixer_elem_free; | |
eccfc1b8 | 1827 | ret = snd_usb_copy_string_desc(state->chip, hdr->iClockSource, |
cddaafb9 DM |
1828 | name, sizeof(name)); |
1829 | if (ret > 0) | |
1830 | snprintf(kctl->id.name, sizeof(kctl->id.name), | |
1831 | "%s Validity", name); | |
1832 | else | |
1833 | snprintf(kctl->id.name, sizeof(kctl->id.name), | |
1834 | "Clock Source %d Validity", hdr->bClockID); | |
1835 | ||
1836 | return snd_usb_mixer_add_control(&cval->head, kctl); | |
1837 | } | |
1838 | ||
1da177e4 LT |
1839 | /* |
1840 | * parse a feature unit | |
1841 | * | |
25985edc | 1842 | * most of controls are defined here. |
1da177e4 | 1843 | */ |
6bc170e4 DM |
1844 | static int parse_audio_feature_unit(struct mixer_build *state, int unitid, |
1845 | void *_ftr) | |
1da177e4 LT |
1846 | { |
1847 | int channels, i, j; | |
86e07d34 | 1848 | struct usb_audio_term iterm; |
36c346e1 | 1849 | unsigned int master_bits; |
1da177e4 | 1850 | int err, csize; |
23caaf19 DM |
1851 | struct uac_feature_unit_descriptor *hdr = _ftr; |
1852 | __u8 *bmaControls; | |
1853 | ||
1854 | if (state->mixer->protocol == UAC_VERSION_1) { | |
1855 | csize = hdr->bControlSize; | |
1856 | channels = (hdr->bLength - 7) / csize - 1; | |
1857 | bmaControls = hdr->bmaControls; | |
9a2fe9b8 | 1858 | } else if (state->mixer->protocol == UAC_VERSION_2) { |
23caaf19 DM |
1859 | struct uac2_feature_unit_descriptor *ftr = _ftr; |
1860 | csize = 4; | |
e8d0fee7 | 1861 | channels = (hdr->bLength - 6) / 4 - 1; |
23caaf19 | 1862 | bmaControls = ftr->bmaControls; |
9a2fe9b8 RB |
1863 | } else { /* UAC_VERSION_3 */ |
1864 | struct uac3_feature_unit_descriptor *ftr = _ftr; | |
1865 | ||
9a2fe9b8 RB |
1866 | csize = 4; |
1867 | channels = (ftr->bLength - 7) / 4 - 1; | |
1868 | bmaControls = ftr->bmaControls; | |
1da177e4 LT |
1869 | } |
1870 | ||
1871 | /* parse the source unit */ | |
f25ecf8f TI |
1872 | err = parse_audio_unit(state, hdr->bSourceID); |
1873 | if (err < 0) | |
1da177e4 LT |
1874 | return err; |
1875 | ||
1876 | /* determine the input source type and name */ | |
4d7b86c9 DM |
1877 | err = check_input_term(state, hdr->bSourceID, &iterm); |
1878 | if (err < 0) | |
1879 | return err; | |
1da177e4 | 1880 | |
23caaf19 | 1881 | master_bits = snd_usb_combine_bytes(bmaControls, csize); |
0c3cee57 JK |
1882 | /* master configuration quirks */ |
1883 | switch (state->chip->usb_id) { | |
1884 | case USB_ID(0x08bb, 0x2702): | |
0ba41d91 TI |
1885 | usb_audio_info(state->chip, |
1886 | "usbmixer: master volume quirk for PCM2702 chip\n"); | |
0c3cee57 | 1887 | /* disable non-functional volume control */ |
65f25da4 | 1888 | master_bits &= ~UAC_CONTROL_BIT(UAC_FU_VOLUME); |
0c3cee57 | 1889 | break; |
c1051439 | 1890 | case USB_ID(0x1130, 0xf211): |
0ba41d91 TI |
1891 | usb_audio_info(state->chip, |
1892 | "usbmixer: volume control quirk for Tenx TP6911 Audio Headset\n"); | |
c1051439 DH |
1893 | /* disable non-functional volume control */ |
1894 | channels = 0; | |
1895 | break; | |
1896 | ||
0c3cee57 | 1897 | } |
23caaf19 DM |
1898 | |
1899 | if (state->mixer->protocol == UAC_VERSION_1) { | |
1900 | /* check all control types */ | |
1901 | for (i = 0; i < 10; i++) { | |
1902 | unsigned int ch_bits = 0; | |
21e9b3e9 AC |
1903 | int control = audio_feature_info[i].control; |
1904 | ||
23caaf19 | 1905 | for (j = 0; j < channels; j++) { |
6bc170e4 DM |
1906 | unsigned int mask; |
1907 | ||
1908 | mask = snd_usb_combine_bytes(bmaControls + | |
1909 | csize * (j+1), csize); | |
23caaf19 DM |
1910 | if (mask & (1 << i)) |
1911 | ch_bits |= (1 << j); | |
1912 | } | |
1913 | /* audio class v1 controls are never read-only */ | |
6bc170e4 DM |
1914 | |
1915 | /* | |
1916 | * The first channel must be set | |
1917 | * (for ease of programming). | |
1918 | */ | |
1919 | if (ch_bits & 1) | |
21e9b3e9 | 1920 | build_feature_ctl(state, _ftr, ch_bits, control, |
6bc170e4 | 1921 | &iterm, unitid, 0); |
23caaf19 | 1922 | if (master_bits & (1 << i)) |
21e9b3e9 AC |
1923 | build_feature_ctl(state, _ftr, 0, control, |
1924 | &iterm, unitid, 0); | |
23caaf19 | 1925 | } |
9a2fe9b8 | 1926 | } else { /* UAC_VERSION_2/3 */ |
d09c06c6 | 1927 | for (i = 0; i < ARRAY_SIZE(audio_feature_info); i++) { |
23caaf19 DM |
1928 | unsigned int ch_bits = 0; |
1929 | unsigned int ch_read_only = 0; | |
21e9b3e9 | 1930 | int control = audio_feature_info[i].control; |
23caaf19 DM |
1931 | |
1932 | for (j = 0; j < channels; j++) { | |
6bc170e4 DM |
1933 | unsigned int mask; |
1934 | ||
1935 | mask = snd_usb_combine_bytes(bmaControls + | |
1936 | csize * (j+1), csize); | |
21e9b3e9 | 1937 | if (uac_v2v3_control_is_readable(mask, control)) { |
23caaf19 | 1938 | ch_bits |= (1 << j); |
21e9b3e9 | 1939 | if (!uac_v2v3_control_is_writeable(mask, control)) |
23caaf19 DM |
1940 | ch_read_only |= (1 << j); |
1941 | } | |
1942 | } | |
1943 | ||
6bc170e4 DM |
1944 | /* |
1945 | * NOTE: build_feature_ctl() will mark the control | |
1946 | * read-only if all channels are marked read-only in | |
1947 | * the descriptors. Otherwise, the control will be | |
1948 | * reported as writeable, but the driver will not | |
1949 | * actually issue a write command for read-only | |
1950 | * channels. | |
1951 | */ | |
1952 | ||
1953 | /* | |
1954 | * The first channel must be set | |
1955 | * (for ease of programming). | |
1956 | */ | |
1957 | if (ch_bits & 1) | |
21e9b3e9 | 1958 | build_feature_ctl(state, _ftr, ch_bits, control, |
6bc170e4 | 1959 | &iterm, unitid, ch_read_only); |
21e9b3e9 | 1960 | if (uac_v2v3_control_is_readable(master_bits, control)) |
2de841ef TI |
1961 | build_feature_ctl(state, _ftr, 0, control, |
1962 | &iterm, unitid, | |
21e9b3e9 AC |
1963 | !uac_v2v3_control_is_writeable(master_bits, |
1964 | control)); | |
1da177e4 | 1965 | } |
1da177e4 LT |
1966 | } |
1967 | ||
1968 | return 0; | |
1969 | } | |
1970 | ||
1da177e4 LT |
1971 | /* |
1972 | * Mixer Unit | |
1973 | */ | |
1974 | ||
f9f0e9ed TI |
1975 | /* check whether the given in/out overflows bmMixerControls matrix */ |
1976 | static bool mixer_bitmap_overflow(struct uac_mixer_unit_descriptor *desc, | |
1977 | int protocol, int num_ins, int num_outs) | |
1978 | { | |
1979 | u8 *hdr = (u8 *)desc; | |
1980 | u8 *c = uac_mixer_unit_bmControls(desc, protocol); | |
1981 | size_t rest; /* remaining bytes after bmMixerControls */ | |
1982 | ||
1983 | switch (protocol) { | |
1984 | case UAC_VERSION_1: | |
1985 | default: | |
1986 | rest = 1; /* iMixer */ | |
1987 | break; | |
1988 | case UAC_VERSION_2: | |
1989 | rest = 2; /* bmControls + iMixer */ | |
1990 | break; | |
1991 | case UAC_VERSION_3: | |
1992 | rest = 6; /* bmControls + wMixerDescrStr */ | |
1993 | break; | |
1994 | } | |
1995 | ||
1996 | /* overflow? */ | |
1997 | return c + (num_ins * num_outs + 7) / 8 + rest > hdr + hdr[0]; | |
1998 | } | |
1999 | ||
1da177e4 LT |
2000 | /* |
2001 | * build a mixer unit control | |
2002 | * | |
2003 | * the callbacks are identical with feature unit. | |
2004 | * input channel number (zero based) is given in control field instead. | |
2005 | */ | |
99fc8645 DM |
2006 | static void build_mixer_unit_ctl(struct mixer_build *state, |
2007 | struct uac_mixer_unit_descriptor *desc, | |
6cfd839a JS |
2008 | int in_pin, int in_ch, int num_outs, |
2009 | int unitid, struct usb_audio_term *iterm) | |
1da177e4 | 2010 | { |
86e07d34 | 2011 | struct usb_mixer_elem_info *cval; |
1da177e4 | 2012 | unsigned int i, len; |
86e07d34 | 2013 | struct snd_kcontrol *kctl; |
c3a3e040 | 2014 | const struct usbmix_name_map *map; |
1da177e4 | 2015 | |
17156f23 | 2016 | map = find_map(state->map, unitid, 0); |
c3a3e040 | 2017 | if (check_ignored_ctl(map)) |
1da177e4 LT |
2018 | return; |
2019 | ||
561b220a | 2020 | cval = kzalloc(sizeof(*cval), GFP_KERNEL); |
6bc170e4 | 2021 | if (!cval) |
1da177e4 LT |
2022 | return; |
2023 | ||
3360b84b | 2024 | snd_usb_mixer_elem_init_std(&cval->head, state->mixer, unitid); |
1da177e4 LT |
2025 | cval->control = in_ch + 1; /* based on 1 */ |
2026 | cval->val_type = USB_MIXER_S16; | |
2027 | for (i = 0; i < num_outs; i++) { | |
6bc170e4 DM |
2028 | __u8 *c = uac_mixer_unit_bmControls(desc, state->mixer->protocol); |
2029 | ||
2030 | if (check_matrix_bitmap(c, in_ch, i, num_outs)) { | |
1da177e4 LT |
2031 | cval->cmask |= (1 << i); |
2032 | cval->channels++; | |
2033 | } | |
2034 | } | |
2035 | ||
2036 | /* get min/max values */ | |
2037 | get_min_max(cval, 0); | |
2038 | ||
2039 | kctl = snd_ctl_new1(&usb_feature_unit_ctl, cval); | |
6bc170e4 | 2040 | if (!kctl) { |
0ba41d91 | 2041 | usb_audio_err(state->chip, "cannot malloc kcontrol\n"); |
52c3e317 | 2042 | usb_mixer_elem_info_free(cval); |
1da177e4 LT |
2043 | return; |
2044 | } | |
eef90451 | 2045 | kctl->private_free = snd_usb_mixer_elem_free; |
1da177e4 | 2046 | |
c3a3e040 | 2047 | len = check_mapped_name(map, kctl->id.name, sizeof(kctl->id.name)); |
6bc170e4 | 2048 | if (!len) |
eccfc1b8 | 2049 | len = get_term_name(state->chip, iterm, kctl->id.name, |
6bc170e4 DM |
2050 | sizeof(kctl->id.name), 0); |
2051 | if (!len) | |
1da177e4 | 2052 | len = sprintf(kctl->id.name, "Mixer Source %d", in_ch + 1); |
08d1e635 | 2053 | append_ctl_name(kctl, " Volume"); |
1da177e4 | 2054 | |
0ba41d91 | 2055 | usb_audio_dbg(state->chip, "[%d] MU [%s] ch = %d, val = %d/%d\n", |
3360b84b TI |
2056 | cval->head.id, kctl->id.name, cval->channels, cval->min, cval->max); |
2057 | snd_usb_mixer_add_control(&cval->head, kctl); | |
1da177e4 LT |
2058 | } |
2059 | ||
5a222e84 AC |
2060 | static int parse_audio_input_terminal(struct mixer_build *state, int unitid, |
2061 | void *raw_desc) | |
2062 | { | |
2063 | struct usb_audio_term iterm; | |
1d38f5d8 | 2064 | unsigned int control, bmctls, term_id; |
5a222e84 | 2065 | |
5a222e84 | 2066 | if (state->mixer->protocol == UAC_VERSION_2) { |
1d38f5d8 JS |
2067 | struct uac2_input_terminal_descriptor *d_v2 = raw_desc; |
2068 | control = UAC2_TE_CONNECTOR; | |
2069 | term_id = d_v2->bTerminalID; | |
2070 | bmctls = le16_to_cpu(d_v2->bmControls); | |
2071 | } else if (state->mixer->protocol == UAC_VERSION_3) { | |
2072 | struct uac3_input_terminal_descriptor *d_v3 = raw_desc; | |
2073 | control = UAC3_TE_INSERTION; | |
2074 | term_id = d_v3->bTerminalID; | |
2075 | bmctls = le32_to_cpu(d_v3->bmControls); | |
2076 | } else { | |
2077 | return 0; /* UAC1. No Insertion control */ | |
5a222e84 | 2078 | } |
1d38f5d8 JS |
2079 | |
2080 | check_input_term(state, term_id, &iterm); | |
2081 | ||
2082 | /* Check for jack detection. */ | |
2083 | if (uac_v2v3_control_is_readable(bmctls, control)) | |
167e1fb1 | 2084 | build_connector_control(state->mixer, &iterm, true); |
1d38f5d8 | 2085 | |
5a222e84 AC |
2086 | return 0; |
2087 | } | |
2088 | ||
1da177e4 LT |
2089 | /* |
2090 | * parse a mixer unit | |
2091 | */ | |
6bc170e4 DM |
2092 | static int parse_audio_mixer_unit(struct mixer_build *state, int unitid, |
2093 | void *raw_desc) | |
1da177e4 | 2094 | { |
99fc8645 | 2095 | struct uac_mixer_unit_descriptor *desc = raw_desc; |
86e07d34 | 2096 | struct usb_audio_term iterm; |
1da177e4 LT |
2097 | int input_pins, num_ins, num_outs; |
2098 | int pin, ich, err; | |
2099 | ||
6cfd839a JS |
2100 | err = uac_mixer_unit_get_channels(state, desc); |
2101 | if (err < 0) { | |
6bc170e4 DM |
2102 | usb_audio_err(state->chip, |
2103 | "invalid MIXER UNIT descriptor %d\n", | |
2104 | unitid); | |
6cfd839a | 2105 | return err; |
1da177e4 | 2106 | } |
1da177e4 | 2107 | |
6cfd839a JS |
2108 | num_outs = err; |
2109 | input_pins = desc->bNrInPins; | |
2110 | ||
1da177e4 LT |
2111 | num_ins = 0; |
2112 | ich = 0; | |
2113 | for (pin = 0; pin < input_pins; pin++) { | |
99fc8645 | 2114 | err = parse_audio_unit(state, desc->baSourceID[pin]); |
1da177e4 | 2115 | if (err < 0) |
284a8dd6 | 2116 | continue; |
ea114fc2 | 2117 | /* no bmControls field (e.g. Maya44) -> ignore */ |
0bfe5e43 | 2118 | if (!num_outs) |
ea114fc2 | 2119 | continue; |
99fc8645 | 2120 | err = check_input_term(state, desc->baSourceID[pin], &iterm); |
1da177e4 LT |
2121 | if (err < 0) |
2122 | return err; | |
2123 | num_ins += iterm.channels; | |
f9f0e9ed TI |
2124 | if (mixer_bitmap_overflow(desc, state->mixer->protocol, |
2125 | num_ins, num_outs)) | |
2126 | break; | |
6bc170e4 | 2127 | for (; ich < num_ins; ich++) { |
1da177e4 LT |
2128 | int och, ich_has_controls = 0; |
2129 | ||
6bc170e4 DM |
2130 | for (och = 0; och < num_outs; och++) { |
2131 | __u8 *c = uac_mixer_unit_bmControls(desc, | |
2132 | state->mixer->protocol); | |
2133 | ||
2134 | if (check_matrix_bitmap(c, ich, och, num_outs)) { | |
1da177e4 LT |
2135 | ich_has_controls = 1; |
2136 | break; | |
2137 | } | |
2138 | } | |
2139 | if (ich_has_controls) | |
6cfd839a | 2140 | build_mixer_unit_ctl(state, desc, pin, ich, num_outs, |
1da177e4 LT |
2141 | unitid, &iterm); |
2142 | } | |
2143 | } | |
2144 | return 0; | |
2145 | } | |
2146 | ||
1da177e4 LT |
2147 | /* |
2148 | * Processing Unit / Extension Unit | |
2149 | */ | |
2150 | ||
2151 | /* get callback for processing/extension unit */ | |
6bc170e4 DM |
2152 | static int mixer_ctl_procunit_get(struct snd_kcontrol *kcontrol, |
2153 | struct snd_ctl_elem_value *ucontrol) | |
1da177e4 | 2154 | { |
86e07d34 | 2155 | struct usb_mixer_elem_info *cval = kcontrol->private_data; |
1da177e4 LT |
2156 | int err, val; |
2157 | ||
2158 | err = get_cur_ctl_value(cval, cval->control << 8, &val); | |
5aeee342 | 2159 | if (err < 0) { |
1da177e4 | 2160 | ucontrol->value.integer.value[0] = cval->min; |
5aeee342 | 2161 | return filter_error(cval, err); |
1da177e4 | 2162 | } |
1da177e4 LT |
2163 | val = get_relative_value(cval, val); |
2164 | ucontrol->value.integer.value[0] = val; | |
2165 | return 0; | |
2166 | } | |
2167 | ||
2168 | /* put callback for processing/extension unit */ | |
6bc170e4 DM |
2169 | static int mixer_ctl_procunit_put(struct snd_kcontrol *kcontrol, |
2170 | struct snd_ctl_elem_value *ucontrol) | |
1da177e4 | 2171 | { |
86e07d34 | 2172 | struct usb_mixer_elem_info *cval = kcontrol->private_data; |
1da177e4 LT |
2173 | int val, oval, err; |
2174 | ||
2175 | err = get_cur_ctl_value(cval, cval->control << 8, &oval); | |
5aeee342 TI |
2176 | if (err < 0) |
2177 | return filter_error(cval, err); | |
1da177e4 LT |
2178 | val = ucontrol->value.integer.value[0]; |
2179 | val = get_abs_value(cval, val); | |
2180 | if (val != oval) { | |
2181 | set_cur_ctl_value(cval, cval->control << 8, val); | |
2182 | return 1; | |
2183 | } | |
2184 | return 0; | |
2185 | } | |
2186 | ||
2187 | /* alsa control interface for processing/extension unit */ | |
8fdaebbb | 2188 | static const struct snd_kcontrol_new mixer_procunit_ctl = { |
1da177e4 LT |
2189 | .iface = SNDRV_CTL_ELEM_IFACE_MIXER, |
2190 | .name = "", /* will be filled later */ | |
2191 | .info = mixer_ctl_feature_info, | |
2192 | .get = mixer_ctl_procunit_get, | |
2193 | .put = mixer_ctl_procunit_put, | |
2194 | }; | |
2195 | ||
1da177e4 LT |
2196 | /* |
2197 | * predefined data for processing units | |
2198 | */ | |
2199 | struct procunit_value_info { | |
2200 | int control; | |
2201 | char *suffix; | |
2202 | int val_type; | |
2203 | int min_value; | |
2204 | }; | |
2205 | ||
2206 | struct procunit_info { | |
2207 | int type; | |
2208 | char *name; | |
2209 | struct procunit_value_info *values; | |
2210 | }; | |
2211 | ||
0f292f02 JS |
2212 | static struct procunit_value_info undefined_proc_info[] = { |
2213 | { 0x00, "Control Undefined", 0 }, | |
2214 | { 0 } | |
2215 | }; | |
2216 | ||
1da177e4 | 2217 | static struct procunit_value_info updown_proc_info[] = { |
65f25da4 DM |
2218 | { UAC_UD_ENABLE, "Switch", USB_MIXER_BOOLEAN }, |
2219 | { UAC_UD_MODE_SELECT, "Mode Select", USB_MIXER_U8, 1 }, | |
1da177e4 LT |
2220 | { 0 } |
2221 | }; | |
2222 | static struct procunit_value_info prologic_proc_info[] = { | |
65f25da4 DM |
2223 | { UAC_DP_ENABLE, "Switch", USB_MIXER_BOOLEAN }, |
2224 | { UAC_DP_MODE_SELECT, "Mode Select", USB_MIXER_U8, 1 }, | |
1da177e4 LT |
2225 | { 0 } |
2226 | }; | |
2227 | static struct procunit_value_info threed_enh_proc_info[] = { | |
65f25da4 DM |
2228 | { UAC_3D_ENABLE, "Switch", USB_MIXER_BOOLEAN }, |
2229 | { UAC_3D_SPACE, "Spaciousness", USB_MIXER_U8 }, | |
1da177e4 LT |
2230 | { 0 } |
2231 | }; | |
2232 | static struct procunit_value_info reverb_proc_info[] = { | |
65f25da4 DM |
2233 | { UAC_REVERB_ENABLE, "Switch", USB_MIXER_BOOLEAN }, |
2234 | { UAC_REVERB_LEVEL, "Level", USB_MIXER_U8 }, | |
2235 | { UAC_REVERB_TIME, "Time", USB_MIXER_U16 }, | |
2236 | { UAC_REVERB_FEEDBACK, "Feedback", USB_MIXER_U8 }, | |
1da177e4 LT |
2237 | { 0 } |
2238 | }; | |
2239 | static struct procunit_value_info chorus_proc_info[] = { | |
65f25da4 DM |
2240 | { UAC_CHORUS_ENABLE, "Switch", USB_MIXER_BOOLEAN }, |
2241 | { UAC_CHORUS_LEVEL, "Level", USB_MIXER_U8 }, | |
2242 | { UAC_CHORUS_RATE, "Rate", USB_MIXER_U16 }, | |
2243 | { UAC_CHORUS_DEPTH, "Depth", USB_MIXER_U16 }, | |
1da177e4 LT |
2244 | { 0 } |
2245 | }; | |
2246 | static struct procunit_value_info dcr_proc_info[] = { | |
65f25da4 DM |
2247 | { UAC_DCR_ENABLE, "Switch", USB_MIXER_BOOLEAN }, |
2248 | { UAC_DCR_RATE, "Ratio", USB_MIXER_U16 }, | |
2249 | { UAC_DCR_MAXAMPL, "Max Amp", USB_MIXER_S16 }, | |
2250 | { UAC_DCR_THRESHOLD, "Threshold", USB_MIXER_S16 }, | |
2251 | { UAC_DCR_ATTACK_TIME, "Attack Time", USB_MIXER_U16 }, | |
2252 | { UAC_DCR_RELEASE_TIME, "Release Time", USB_MIXER_U16 }, | |
1da177e4 LT |
2253 | { 0 } |
2254 | }; | |
2255 | ||
2256 | static struct procunit_info procunits[] = { | |
65f25da4 DM |
2257 | { UAC_PROCESS_UP_DOWNMIX, "Up Down", updown_proc_info }, |
2258 | { UAC_PROCESS_DOLBY_PROLOGIC, "Dolby Prologic", prologic_proc_info }, | |
2259 | { UAC_PROCESS_STEREO_EXTENDER, "3D Stereo Extender", threed_enh_proc_info }, | |
2260 | { UAC_PROCESS_REVERB, "Reverb", reverb_proc_info }, | |
2261 | { UAC_PROCESS_CHORUS, "Chorus", chorus_proc_info }, | |
2262 | { UAC_PROCESS_DYN_RANGE_COMP, "DCR", dcr_proc_info }, | |
1da177e4 LT |
2263 | { 0 }, |
2264 | }; | |
0f292f02 JS |
2265 | |
2266 | static struct procunit_value_info uac3_updown_proc_info[] = { | |
2267 | { UAC3_UD_MODE_SELECT, "Mode Select", USB_MIXER_U8, 1 }, | |
2268 | { 0 } | |
2269 | }; | |
2270 | static struct procunit_value_info uac3_stereo_ext_proc_info[] = { | |
2271 | { UAC3_EXT_WIDTH_CONTROL, "Width Control", USB_MIXER_U8 }, | |
2272 | { 0 } | |
2273 | }; | |
2274 | ||
2275 | static struct procunit_info uac3_procunits[] = { | |
2276 | { UAC3_PROCESS_UP_DOWNMIX, "Up Down", uac3_updown_proc_info }, | |
2277 | { UAC3_PROCESS_STEREO_EXTENDER, "3D Stereo Extender", uac3_stereo_ext_proc_info }, | |
2278 | { UAC3_PROCESS_MULTI_FUNCTION, "Multi-Function", undefined_proc_info }, | |
2279 | { 0 }, | |
2280 | }; | |
2281 | ||
7d2b451e SK |
2282 | /* |
2283 | * predefined data for extension units | |
2284 | */ | |
2285 | static struct procunit_value_info clock_rate_xu_info[] = { | |
e213e9cf DM |
2286 | { USB_XU_CLOCK_RATE_SELECTOR, "Selector", USB_MIXER_U8, 0 }, |
2287 | { 0 } | |
7d2b451e SK |
2288 | }; |
2289 | static struct procunit_value_info clock_source_xu_info[] = { | |
2290 | { USB_XU_CLOCK_SOURCE_SELECTOR, "External", USB_MIXER_BOOLEAN }, | |
2291 | { 0 } | |
2292 | }; | |
2293 | static struct procunit_value_info spdif_format_xu_info[] = { | |
2294 | { USB_XU_DIGITAL_FORMAT_SELECTOR, "SPDIF/AC3", USB_MIXER_BOOLEAN }, | |
2295 | { 0 } | |
2296 | }; | |
2297 | static struct procunit_value_info soft_limit_xu_info[] = { | |
2298 | { USB_XU_SOFT_LIMIT_SELECTOR, " ", USB_MIXER_BOOLEAN }, | |
2299 | { 0 } | |
2300 | }; | |
2301 | static struct procunit_info extunits[] = { | |
2302 | { USB_XU_CLOCK_RATE, "Clock rate", clock_rate_xu_info }, | |
2303 | { USB_XU_CLOCK_SOURCE, "DigitalIn CLK source", clock_source_xu_info }, | |
2304 | { USB_XU_DIGITAL_IO_STATUS, "DigitalOut format:", spdif_format_xu_info }, | |
2305 | { USB_XU_DEVICE_OPTIONS, "AnalogueIn Soft Limit", soft_limit_xu_info }, | |
2306 | { 0 } | |
2307 | }; | |
6bc170e4 | 2308 | |
1da177e4 LT |
2309 | /* |
2310 | * build a processing/extension unit | |
2311 | */ | |
6bc170e4 DM |
2312 | static int build_audio_procunit(struct mixer_build *state, int unitid, |
2313 | void *raw_desc, struct procunit_info *list, | |
ca95c7bf | 2314 | bool extension_unit) |
1da177e4 | 2315 | { |
99fc8645 | 2316 | struct uac_processing_unit_descriptor *desc = raw_desc; |
f4351a19 | 2317 | int num_ins; |
86e07d34 TI |
2318 | struct usb_mixer_elem_info *cval; |
2319 | struct snd_kcontrol *kctl; | |
1da177e4 LT |
2320 | int i, err, nameid, type, len; |
2321 | struct procunit_info *info; | |
2322 | struct procunit_value_info *valinfo; | |
c3a3e040 | 2323 | const struct usbmix_name_map *map; |
1da177e4 LT |
2324 | static struct procunit_value_info default_value_info[] = { |
2325 | { 0x01, "Switch", USB_MIXER_BOOLEAN }, | |
2326 | { 0 } | |
2327 | }; | |
2328 | static struct procunit_info default_info = { | |
2329 | 0, NULL, default_value_info | |
2330 | }; | |
ca95c7bf TI |
2331 | const char *name = extension_unit ? |
2332 | "Extension Unit" : "Processing Unit"; | |
1da177e4 | 2333 | |
f4351a19 | 2334 | num_ins = desc->bNrInPins; |
1da177e4 | 2335 | for (i = 0; i < num_ins; i++) { |
f25ecf8f TI |
2336 | err = parse_audio_unit(state, desc->baSourceID[i]); |
2337 | if (err < 0) | |
1da177e4 LT |
2338 | return err; |
2339 | } | |
2340 | ||
99fc8645 | 2341 | type = le16_to_cpu(desc->wProcessType); |
1da177e4 LT |
2342 | for (info = list; info && info->type; info++) |
2343 | if (info->type == type) | |
2344 | break; | |
6bc170e4 | 2345 | if (!info || !info->type) |
1da177e4 LT |
2346 | info = &default_info; |
2347 | ||
2348 | for (valinfo = info->values; valinfo->control; valinfo++) { | |
23caaf19 | 2349 | __u8 *controls = uac_processing_unit_bmControls(desc, state->mixer->protocol); |
99fc8645 | 2350 | |
4e887af3 JS |
2351 | if (state->mixer->protocol == UAC_VERSION_1) { |
2352 | if (!(controls[valinfo->control / 8] & | |
2353 | (1 << ((valinfo->control % 8) - 1)))) | |
2354 | continue; | |
2355 | } else { /* UAC_VERSION_2/3 */ | |
2356 | if (!uac_v2v3_control_is_readable(controls[valinfo->control / 8], | |
2357 | valinfo->control)) | |
2358 | continue; | |
2359 | } | |
2360 | ||
17156f23 | 2361 | map = find_map(state->map, unitid, valinfo->control); |
c3a3e040 | 2362 | if (check_ignored_ctl(map)) |
1da177e4 | 2363 | continue; |
561b220a | 2364 | cval = kzalloc(sizeof(*cval), GFP_KERNEL); |
a860d95f | 2365 | if (!cval) |
1da177e4 | 2366 | return -ENOMEM; |
3360b84b | 2367 | snd_usb_mixer_elem_init_std(&cval->head, state->mixer, unitid); |
1da177e4 LT |
2368 | cval->control = valinfo->control; |
2369 | cval->val_type = valinfo->val_type; | |
2370 | cval->channels = 1; | |
2371 | ||
4e887af3 JS |
2372 | if (state->mixer->protocol > UAC_VERSION_1 && |
2373 | !uac_v2v3_control_is_writeable(controls[valinfo->control / 8], | |
2374 | valinfo->control)) | |
2375 | cval->master_readonly = 1; | |
2376 | ||
1da177e4 | 2377 | /* get min/max values */ |
55b8cb46 JS |
2378 | switch (type) { |
2379 | case UAC_PROCESS_UP_DOWNMIX: { | |
2380 | bool mode_sel = false; | |
2381 | ||
2382 | switch (state->mixer->protocol) { | |
2383 | case UAC_VERSION_1: | |
2384 | case UAC_VERSION_2: | |
2385 | default: | |
2386 | if (cval->control == UAC_UD_MODE_SELECT) | |
2387 | mode_sel = true; | |
2388 | break; | |
2389 | case UAC_VERSION_3: | |
2390 | if (cval->control == UAC3_UD_MODE_SELECT) | |
2391 | mode_sel = true; | |
2392 | break; | |
2393 | } | |
2394 | ||
2395 | if (mode_sel) { | |
2396 | __u8 *control_spec = uac_processing_unit_specific(desc, | |
2397 | state->mixer->protocol); | |
2398 | cval->min = 1; | |
2399 | cval->max = control_spec[0]; | |
7d2b451e SK |
2400 | cval->res = 1; |
2401 | cval->initialized = 1; | |
55b8cb46 JS |
2402 | break; |
2403 | } | |
2404 | ||
2405 | get_min_max(cval, valinfo->min_value); | |
2406 | break; | |
2407 | } | |
2408 | case USB_XU_CLOCK_RATE: | |
2409 | /* | |
2410 | * E-Mu USB 0404/0202/TrackerPre/0204 | |
2411 | * samplerate control quirk | |
2412 | */ | |
2413 | cval->min = 0; | |
2414 | cval->max = 5; | |
2415 | cval->res = 1; | |
2416 | cval->initialized = 1; | |
2417 | break; | |
2418 | default: | |
2419 | get_min_max(cval, valinfo->min_value); | |
2420 | break; | |
7d2b451e | 2421 | } |
1da177e4 LT |
2422 | |
2423 | kctl = snd_ctl_new1(&mixer_procunit_ctl, cval); | |
6bc170e4 | 2424 | if (!kctl) { |
52c3e317 | 2425 | usb_mixer_elem_info_free(cval); |
1da177e4 LT |
2426 | return -ENOMEM; |
2427 | } | |
eef90451 | 2428 | kctl->private_free = snd_usb_mixer_elem_free; |
1da177e4 | 2429 | |
6bc170e4 | 2430 | if (check_mapped_name(map, kctl->id.name, sizeof(kctl->id.name))) { |
c3a3e040 | 2431 | /* nothing */ ; |
6bc170e4 | 2432 | } else if (info->name) { |
1da177e4 | 2433 | strlcpy(kctl->id.name, info->name, sizeof(kctl->id.name)); |
6bc170e4 | 2434 | } else { |
ca95c7bf TI |
2435 | if (extension_unit) |
2436 | nameid = uac_extension_unit_iExtension(desc, state->mixer->protocol); | |
2437 | else | |
2438 | nameid = uac_processing_unit_iProcessing(desc, state->mixer->protocol); | |
1da177e4 LT |
2439 | len = 0; |
2440 | if (nameid) | |
eccfc1b8 RB |
2441 | len = snd_usb_copy_string_desc(state->chip, |
2442 | nameid, | |
6bc170e4 DM |
2443 | kctl->id.name, |
2444 | sizeof(kctl->id.name)); | |
2445 | if (!len) | |
1da177e4 LT |
2446 | strlcpy(kctl->id.name, name, sizeof(kctl->id.name)); |
2447 | } | |
08d1e635 TI |
2448 | append_ctl_name(kctl, " "); |
2449 | append_ctl_name(kctl, valinfo->suffix); | |
1da177e4 | 2450 | |
0ba41d91 | 2451 | usb_audio_dbg(state->chip, |
6bc170e4 | 2452 | "[%d] PU [%s] ch = %d, val = %d/%d\n", |
3360b84b | 2453 | cval->head.id, kctl->id.name, cval->channels, |
6bc170e4 DM |
2454 | cval->min, cval->max); |
2455 | ||
3360b84b | 2456 | err = snd_usb_mixer_add_control(&cval->head, kctl); |
6bc170e4 | 2457 | if (err < 0) |
1da177e4 LT |
2458 | return err; |
2459 | } | |
2460 | return 0; | |
2461 | } | |
2462 | ||
6bc170e4 DM |
2463 | static int parse_audio_processing_unit(struct mixer_build *state, int unitid, |
2464 | void *raw_desc) | |
1da177e4 | 2465 | { |
0f292f02 JS |
2466 | switch (state->mixer->protocol) { |
2467 | case UAC_VERSION_1: | |
2468 | case UAC_VERSION_2: | |
2469 | default: | |
2470 | return build_audio_procunit(state, unitid, raw_desc, | |
ca95c7bf | 2471 | procunits, false); |
0f292f02 JS |
2472 | case UAC_VERSION_3: |
2473 | return build_audio_procunit(state, unitid, raw_desc, | |
ca95c7bf | 2474 | uac3_procunits, false); |
0f292f02 | 2475 | } |
1da177e4 LT |
2476 | } |
2477 | ||
6bc170e4 DM |
2478 | static int parse_audio_extension_unit(struct mixer_build *state, int unitid, |
2479 | void *raw_desc) | |
1da177e4 | 2480 | { |
6bc170e4 DM |
2481 | /* |
2482 | * Note that we parse extension units with processing unit descriptors. | |
2483 | * That's ok as the layout is the same. | |
2484 | */ | |
ca95c7bf | 2485 | return build_audio_procunit(state, unitid, raw_desc, extunits, true); |
1da177e4 LT |
2486 | } |
2487 | ||
1da177e4 LT |
2488 | /* |
2489 | * Selector Unit | |
2490 | */ | |
2491 | ||
6bc170e4 DM |
2492 | /* |
2493 | * info callback for selector unit | |
1da177e4 LT |
2494 | * use an enumerator type for routing |
2495 | */ | |
6bc170e4 DM |
2496 | static int mixer_ctl_selector_info(struct snd_kcontrol *kcontrol, |
2497 | struct snd_ctl_elem_info *uinfo) | |
1da177e4 | 2498 | { |
86e07d34 | 2499 | struct usb_mixer_elem_info *cval = kcontrol->private_data; |
2a1803a7 | 2500 | const char **itemlist = (const char **)kcontrol->private_value; |
1da177e4 | 2501 | |
5e246b85 TI |
2502 | if (snd_BUG_ON(!itemlist)) |
2503 | return -EINVAL; | |
2a1803a7 | 2504 | return snd_ctl_enum_info(uinfo, 1, cval->max, itemlist); |
1da177e4 LT |
2505 | } |
2506 | ||
2507 | /* get callback for selector unit */ | |
6bc170e4 DM |
2508 | static int mixer_ctl_selector_get(struct snd_kcontrol *kcontrol, |
2509 | struct snd_ctl_elem_value *ucontrol) | |
1da177e4 | 2510 | { |
86e07d34 | 2511 | struct usb_mixer_elem_info *cval = kcontrol->private_data; |
1da177e4 LT |
2512 | int val, err; |
2513 | ||
09414207 | 2514 | err = get_cur_ctl_value(cval, cval->control << 8, &val); |
1da177e4 | 2515 | if (err < 0) { |
5aeee342 TI |
2516 | ucontrol->value.enumerated.item[0] = 0; |
2517 | return filter_error(cval, err); | |
1da177e4 LT |
2518 | } |
2519 | val = get_relative_value(cval, val); | |
2520 | ucontrol->value.enumerated.item[0] = val; | |
2521 | return 0; | |
2522 | } | |
2523 | ||
2524 | /* put callback for selector unit */ | |
6bc170e4 DM |
2525 | static int mixer_ctl_selector_put(struct snd_kcontrol *kcontrol, |
2526 | struct snd_ctl_elem_value *ucontrol) | |
1da177e4 | 2527 | { |
86e07d34 | 2528 | struct usb_mixer_elem_info *cval = kcontrol->private_data; |
1da177e4 LT |
2529 | int val, oval, err; |
2530 | ||
09414207 | 2531 | err = get_cur_ctl_value(cval, cval->control << 8, &oval); |
5aeee342 TI |
2532 | if (err < 0) |
2533 | return filter_error(cval, err); | |
1da177e4 LT |
2534 | val = ucontrol->value.enumerated.item[0]; |
2535 | val = get_abs_value(cval, val); | |
2536 | if (val != oval) { | |
09414207 | 2537 | set_cur_ctl_value(cval, cval->control << 8, val); |
1da177e4 LT |
2538 | return 1; |
2539 | } | |
2540 | return 0; | |
2541 | } | |
2542 | ||
2543 | /* alsa control interface for selector unit */ | |
8fdaebbb | 2544 | static const struct snd_kcontrol_new mixer_selectunit_ctl = { |
1da177e4 LT |
2545 | .iface = SNDRV_CTL_ELEM_IFACE_MIXER, |
2546 | .name = "", /* will be filled later */ | |
2547 | .info = mixer_ctl_selector_info, | |
2548 | .get = mixer_ctl_selector_get, | |
2549 | .put = mixer_ctl_selector_put, | |
2550 | }; | |
2551 | ||
6bc170e4 DM |
2552 | /* |
2553 | * private free callback. | |
1da177e4 LT |
2554 | * free both private_data and private_value |
2555 | */ | |
86e07d34 | 2556 | static void usb_mixer_selector_elem_free(struct snd_kcontrol *kctl) |
1da177e4 LT |
2557 | { |
2558 | int i, num_ins = 0; | |
2559 | ||
2560 | if (kctl->private_data) { | |
86e07d34 | 2561 | struct usb_mixer_elem_info *cval = kctl->private_data; |
1da177e4 | 2562 | num_ins = cval->max; |
52c3e317 | 2563 | usb_mixer_elem_info_free(cval); |
1da177e4 LT |
2564 | kctl->private_data = NULL; |
2565 | } | |
2566 | if (kctl->private_value) { | |
2567 | char **itemlist = (char **)kctl->private_value; | |
2568 | for (i = 0; i < num_ins; i++) | |
2569 | kfree(itemlist[i]); | |
2570 | kfree(itemlist); | |
2571 | kctl->private_value = 0; | |
2572 | } | |
2573 | } | |
2574 | ||
2575 | /* | |
2576 | * parse a selector unit | |
2577 | */ | |
6bc170e4 DM |
2578 | static int parse_audio_selector_unit(struct mixer_build *state, int unitid, |
2579 | void *raw_desc) | |
1da177e4 | 2580 | { |
99fc8645 | 2581 | struct uac_selector_unit_descriptor *desc = raw_desc; |
1da177e4 LT |
2582 | unsigned int i, nameid, len; |
2583 | int err; | |
86e07d34 TI |
2584 | struct usb_mixer_elem_info *cval; |
2585 | struct snd_kcontrol *kctl; | |
c3a3e040 | 2586 | const struct usbmix_name_map *map; |
1da177e4 LT |
2587 | char **namelist; |
2588 | ||
99fc8645 | 2589 | for (i = 0; i < desc->bNrInPins; i++) { |
f25ecf8f TI |
2590 | err = parse_audio_unit(state, desc->baSourceID[i]); |
2591 | if (err < 0) | |
1da177e4 LT |
2592 | return err; |
2593 | } | |
2594 | ||
99fc8645 | 2595 | if (desc->bNrInPins == 1) /* only one ? nonsense! */ |
1da177e4 LT |
2596 | return 0; |
2597 | ||
17156f23 | 2598 | map = find_map(state->map, unitid, 0); |
c3a3e040 | 2599 | if (check_ignored_ctl(map)) |
1da177e4 LT |
2600 | return 0; |
2601 | ||
561b220a | 2602 | cval = kzalloc(sizeof(*cval), GFP_KERNEL); |
a860d95f | 2603 | if (!cval) |
1da177e4 | 2604 | return -ENOMEM; |
3360b84b | 2605 | snd_usb_mixer_elem_init_std(&cval->head, state->mixer, unitid); |
1da177e4 LT |
2606 | cval->val_type = USB_MIXER_U8; |
2607 | cval->channels = 1; | |
2608 | cval->min = 1; | |
99fc8645 | 2609 | cval->max = desc->bNrInPins; |
1da177e4 LT |
2610 | cval->res = 1; |
2611 | cval->initialized = 1; | |
2612 | ||
c77e1ef1 JS |
2613 | switch (state->mixer->protocol) { |
2614 | case UAC_VERSION_1: | |
2615 | default: | |
09414207 | 2616 | cval->control = 0; |
c77e1ef1 JS |
2617 | break; |
2618 | case UAC_VERSION_2: | |
2619 | case UAC_VERSION_3: | |
2620 | if (desc->bDescriptorSubtype == UAC2_CLOCK_SELECTOR || | |
2621 | desc->bDescriptorSubtype == UAC3_CLOCK_SELECTOR) | |
2622 | cval->control = UAC2_CX_CLOCK_SELECTOR; | |
2623 | else /* UAC2/3_SELECTOR_UNIT */ | |
2624 | cval->control = UAC2_SU_SELECTOR; | |
2625 | break; | |
2626 | } | |
09414207 | 2627 | |
52c3e317 | 2628 | namelist = kcalloc(desc->bNrInPins, sizeof(char *), GFP_KERNEL); |
6bc170e4 | 2629 | if (!namelist) { |
52c3e317 TI |
2630 | err = -ENOMEM; |
2631 | goto error_cval; | |
1da177e4 LT |
2632 | } |
2633 | #define MAX_ITEM_NAME_LEN 64 | |
99fc8645 | 2634 | for (i = 0; i < desc->bNrInPins; i++) { |
86e07d34 | 2635 | struct usb_audio_term iterm; |
1da177e4 LT |
2636 | len = 0; |
2637 | namelist[i] = kmalloc(MAX_ITEM_NAME_LEN, GFP_KERNEL); | |
6bc170e4 | 2638 | if (!namelist[i]) { |
52c3e317 TI |
2639 | err = -ENOMEM; |
2640 | goto error_name; | |
1da177e4 | 2641 | } |
8e062ec7 CL |
2642 | len = check_mapped_selector_name(state, unitid, i, namelist[i], |
2643 | MAX_ITEM_NAME_LEN); | |
99fc8645 | 2644 | if (! len && check_input_term(state, desc->baSourceID[i], &iterm) >= 0) |
eccfc1b8 RB |
2645 | len = get_term_name(state->chip, &iterm, namelist[i], |
2646 | MAX_ITEM_NAME_LEN, 0); | |
1da177e4 | 2647 | if (! len) |
af831eef | 2648 | sprintf(namelist[i], "Input %u", i); |
1da177e4 LT |
2649 | } |
2650 | ||
2651 | kctl = snd_ctl_new1(&mixer_selectunit_ctl, cval); | |
2652 | if (! kctl) { | |
0ba41d91 | 2653 | usb_audio_err(state->chip, "cannot malloc kcontrol\n"); |
52c3e317 TI |
2654 | err = -ENOMEM; |
2655 | goto error_name; | |
1da177e4 LT |
2656 | } |
2657 | kctl->private_value = (unsigned long)namelist; | |
2658 | kctl->private_free = usb_mixer_selector_elem_free; | |
2659 | ||
5a15f289 | 2660 | /* check the static mapping table at first */ |
c3a3e040 | 2661 | len = check_mapped_name(map, kctl->id.name, sizeof(kctl->id.name)); |
89b89d12 | 2662 | if (!len) { |
5a15f289 | 2663 | /* no mapping ? */ |
c77e1ef1 JS |
2664 | switch (state->mixer->protocol) { |
2665 | case UAC_VERSION_1: | |
2666 | case UAC_VERSION_2: | |
2667 | default: | |
5a15f289 | 2668 | /* if iSelector is given, use it */ |
c77e1ef1 JS |
2669 | nameid = uac_selector_unit_iSelector(desc); |
2670 | if (nameid) | |
2671 | len = snd_usb_copy_string_desc(state->chip, | |
2672 | nameid, kctl->id.name, | |
2673 | sizeof(kctl->id.name)); | |
2674 | break; | |
2675 | case UAC_VERSION_3: | |
2676 | /* TODO: Class-Specific strings not yet supported */ | |
2677 | break; | |
2678 | } | |
2679 | ||
5a15f289 TI |
2680 | /* ... or pick up the terminal name at next */ |
2681 | if (!len) | |
eccfc1b8 | 2682 | len = get_term_name(state->chip, &state->oterm, |
1da177e4 | 2683 | kctl->id.name, sizeof(kctl->id.name), 0); |
5a15f289 | 2684 | /* ... or use the fixed string "USB" as the last resort */ |
6bc170e4 | 2685 | if (!len) |
1da177e4 LT |
2686 | strlcpy(kctl->id.name, "USB", sizeof(kctl->id.name)); |
2687 | ||
5a15f289 | 2688 | /* and add the proper suffix */ |
c77e1ef1 JS |
2689 | if (desc->bDescriptorSubtype == UAC2_CLOCK_SELECTOR || |
2690 | desc->bDescriptorSubtype == UAC3_CLOCK_SELECTOR) | |
09414207 DM |
2691 | append_ctl_name(kctl, " Clock Source"); |
2692 | else if ((state->oterm.type & 0xff00) == 0x0100) | |
08d1e635 | 2693 | append_ctl_name(kctl, " Capture Source"); |
1da177e4 | 2694 | else |
08d1e635 | 2695 | append_ctl_name(kctl, " Playback Source"); |
1da177e4 LT |
2696 | } |
2697 | ||
0ba41d91 | 2698 | usb_audio_dbg(state->chip, "[%d] SU [%s] items = %d\n", |
3360b84b TI |
2699 | cval->head.id, kctl->id.name, desc->bNrInPins); |
2700 | return snd_usb_mixer_add_control(&cval->head, kctl); | |
52c3e317 TI |
2701 | |
2702 | error_name: | |
2703 | for (i = 0; i < desc->bNrInPins; i++) | |
2704 | kfree(namelist[i]); | |
2705 | kfree(namelist); | |
2706 | error_cval: | |
2707 | usb_mixer_elem_info_free(cval); | |
2708 | return err; | |
1da177e4 LT |
2709 | } |
2710 | ||
1da177e4 LT |
2711 | /* |
2712 | * parse an audio unit recursively | |
2713 | */ | |
2714 | ||
86e07d34 | 2715 | static int parse_audio_unit(struct mixer_build *state, int unitid) |
1da177e4 LT |
2716 | { |
2717 | unsigned char *p1; | |
9a2fe9b8 | 2718 | int protocol = state->mixer->protocol; |
1da177e4 LT |
2719 | |
2720 | if (test_and_set_bit(unitid, state->unitbitmap)) | |
2721 | return 0; /* the unit already visited */ | |
2722 | ||
2723 | p1 = find_audio_control_unit(state, unitid); | |
2724 | if (!p1) { | |
0ba41d91 | 2725 | usb_audio_err(state->chip, "unit %d not found!\n", unitid); |
1da177e4 LT |
2726 | return -EINVAL; |
2727 | } | |
2728 | ||
57f87706 TI |
2729 | if (!snd_usb_validate_audio_desc(p1, protocol)) { |
2730 | usb_audio_dbg(state->chip, "invalid unit %d\n", unitid); | |
2731 | return 0; /* skip invalid unit */ | |
2732 | } | |
2733 | ||
68e9fde2 TI |
2734 | switch (PTYPE(protocol, p1[2])) { |
2735 | case PTYPE(UAC_VERSION_1, UAC_INPUT_TERMINAL): | |
2736 | case PTYPE(UAC_VERSION_2, UAC_INPUT_TERMINAL): | |
2737 | case PTYPE(UAC_VERSION_3, UAC_INPUT_TERMINAL): | |
2738 | return parse_audio_input_terminal(state, unitid, p1); | |
2739 | case PTYPE(UAC_VERSION_1, UAC_MIXER_UNIT): | |
2740 | case PTYPE(UAC_VERSION_2, UAC_MIXER_UNIT): | |
2741 | case PTYPE(UAC_VERSION_3, UAC3_MIXER_UNIT): | |
2742 | return parse_audio_mixer_unit(state, unitid, p1); | |
2743 | case PTYPE(UAC_VERSION_2, UAC2_CLOCK_SOURCE): | |
2744 | case PTYPE(UAC_VERSION_3, UAC3_CLOCK_SOURCE): | |
2745 | return parse_clock_source_unit(state, unitid, p1); | |
2746 | case PTYPE(UAC_VERSION_1, UAC_SELECTOR_UNIT): | |
2747 | case PTYPE(UAC_VERSION_2, UAC_SELECTOR_UNIT): | |
2748 | case PTYPE(UAC_VERSION_3, UAC3_SELECTOR_UNIT): | |
2749 | case PTYPE(UAC_VERSION_2, UAC2_CLOCK_SELECTOR): | |
2750 | case PTYPE(UAC_VERSION_3, UAC3_CLOCK_SELECTOR): | |
2751 | return parse_audio_selector_unit(state, unitid, p1); | |
2752 | case PTYPE(UAC_VERSION_1, UAC_FEATURE_UNIT): | |
2753 | case PTYPE(UAC_VERSION_2, UAC_FEATURE_UNIT): | |
2754 | case PTYPE(UAC_VERSION_3, UAC3_FEATURE_UNIT): | |
2755 | return parse_audio_feature_unit(state, unitid, p1); | |
2756 | case PTYPE(UAC_VERSION_1, UAC1_PROCESSING_UNIT): | |
2757 | case PTYPE(UAC_VERSION_2, UAC2_PROCESSING_UNIT_V2): | |
2758 | case PTYPE(UAC_VERSION_3, UAC3_PROCESSING_UNIT): | |
2759 | return parse_audio_processing_unit(state, unitid, p1); | |
2760 | case PTYPE(UAC_VERSION_1, UAC1_EXTENSION_UNIT): | |
2761 | case PTYPE(UAC_VERSION_2, UAC2_EXTENSION_UNIT_V2): | |
2762 | case PTYPE(UAC_VERSION_3, UAC3_EXTENSION_UNIT): | |
2763 | return parse_audio_extension_unit(state, unitid, p1); | |
2764 | case PTYPE(UAC_VERSION_2, UAC2_EFFECT_UNIT): | |
2765 | case PTYPE(UAC_VERSION_3, UAC3_EFFECT_UNIT): | |
2766 | return 0; /* FIXME - effect units not implemented yet */ | |
2767 | default: | |
2768 | usb_audio_err(state->chip, | |
2769 | "unit %u: unexpected type 0x%02x\n", | |
2770 | unitid, p1[2]); | |
2771 | return -EINVAL; | |
1da177e4 LT |
2772 | } |
2773 | } | |
2774 | ||
84957a8a CL |
2775 | static void snd_usb_mixer_free(struct usb_mixer_interface *mixer) |
2776 | { | |
124751d5 TI |
2777 | /* kill pending URBs */ |
2778 | snd_usb_mixer_disconnect(mixer); | |
2779 | ||
6639b6c2 CL |
2780 | kfree(mixer->id_elems); |
2781 | if (mixer->urb) { | |
2782 | kfree(mixer->urb->transfer_buffer); | |
2783 | usb_free_urb(mixer->urb); | |
2784 | } | |
68df9de1 | 2785 | usb_free_urb(mixer->rc_urb); |
b259b10c | 2786 | kfree(mixer->rc_setup_packet); |
84957a8a CL |
2787 | kfree(mixer); |
2788 | } | |
2789 | ||
86e07d34 | 2790 | static int snd_usb_mixer_dev_free(struct snd_device *device) |
84957a8a CL |
2791 | { |
2792 | struct usb_mixer_interface *mixer = device->device_data; | |
2793 | snd_usb_mixer_free(mixer); | |
2794 | return 0; | |
2795 | } | |
2796 | ||
17156f23 RB |
2797 | /* UAC3 predefined channels configuration */ |
2798 | struct uac3_badd_profile { | |
2799 | int subclass; | |
2800 | const char *name; | |
2801 | int c_chmask; /* capture channels mask */ | |
2802 | int p_chmask; /* playback channels mask */ | |
2803 | int st_chmask; /* side tone mixing channel mask */ | |
2804 | }; | |
2805 | ||
2806 | static struct uac3_badd_profile uac3_badd_profiles[] = { | |
2807 | { | |
2808 | /* | |
2809 | * BAIF, BAOF or combination of both | |
2810 | * IN: Mono or Stereo cfg, Mono alt possible | |
2811 | * OUT: Mono or Stereo cfg, Mono alt possible | |
2812 | */ | |
2813 | .subclass = UAC3_FUNCTION_SUBCLASS_GENERIC_IO, | |
2814 | .name = "GENERIC IO", | |
2815 | .c_chmask = -1, /* dynamic channels */ | |
2816 | .p_chmask = -1, /* dynamic channels */ | |
2817 | }, | |
2818 | { | |
2819 | /* BAOF; Stereo only cfg, Mono alt possible */ | |
2820 | .subclass = UAC3_FUNCTION_SUBCLASS_HEADPHONE, | |
2821 | .name = "HEADPHONE", | |
2822 | .p_chmask = 3, | |
2823 | }, | |
2824 | { | |
2825 | /* BAOF; Mono or Stereo cfg, Mono alt possible */ | |
2826 | .subclass = UAC3_FUNCTION_SUBCLASS_SPEAKER, | |
2827 | .name = "SPEAKER", | |
2828 | .p_chmask = -1, /* dynamic channels */ | |
2829 | }, | |
2830 | { | |
2831 | /* BAIF; Mono or Stereo cfg, Mono alt possible */ | |
2832 | .subclass = UAC3_FUNCTION_SUBCLASS_MICROPHONE, | |
2833 | .name = "MICROPHONE", | |
2834 | .c_chmask = -1, /* dynamic channels */ | |
2835 | }, | |
2836 | { | |
2837 | /* | |
2838 | * BAIOF topology | |
2839 | * IN: Mono only | |
2840 | * OUT: Mono or Stereo cfg, Mono alt possible | |
2841 | */ | |
2842 | .subclass = UAC3_FUNCTION_SUBCLASS_HEADSET, | |
2843 | .name = "HEADSET", | |
2844 | .c_chmask = 1, | |
2845 | .p_chmask = -1, /* dynamic channels */ | |
2846 | .st_chmask = 1, | |
2847 | }, | |
2848 | { | |
2849 | /* BAIOF; IN: Mono only; OUT: Stereo only, Mono alt possible */ | |
2850 | .subclass = UAC3_FUNCTION_SUBCLASS_HEADSET_ADAPTER, | |
2851 | .name = "HEADSET ADAPTER", | |
2852 | .c_chmask = 1, | |
2853 | .p_chmask = 3, | |
2854 | .st_chmask = 1, | |
2855 | }, | |
2856 | { | |
2857 | /* BAIF + BAOF; IN: Mono only; OUT: Mono only */ | |
2858 | .subclass = UAC3_FUNCTION_SUBCLASS_SPEAKERPHONE, | |
2859 | .name = "SPEAKERPHONE", | |
2860 | .c_chmask = 1, | |
2861 | .p_chmask = 1, | |
2862 | }, | |
2863 | { 0 } /* terminator */ | |
2864 | }; | |
2865 | ||
2866 | static bool uac3_badd_func_has_valid_channels(struct usb_mixer_interface *mixer, | |
2867 | struct uac3_badd_profile *f, | |
2868 | int c_chmask, int p_chmask) | |
2869 | { | |
2870 | /* | |
2871 | * If both playback/capture channels are dynamic, make sure | |
2872 | * at least one channel is present | |
2873 | */ | |
2874 | if (f->c_chmask < 0 && f->p_chmask < 0) { | |
2875 | if (!c_chmask && !p_chmask) { | |
2876 | usb_audio_warn(mixer->chip, "BAAD %s: no channels?", | |
2877 | f->name); | |
2878 | return false; | |
2879 | } | |
2880 | return true; | |
2881 | } | |
2882 | ||
2883 | if ((f->c_chmask < 0 && !c_chmask) || | |
2884 | (f->c_chmask >= 0 && f->c_chmask != c_chmask)) { | |
2885 | usb_audio_warn(mixer->chip, "BAAD %s c_chmask mismatch", | |
2886 | f->name); | |
2887 | return false; | |
2888 | } | |
2889 | if ((f->p_chmask < 0 && !p_chmask) || | |
2890 | (f->p_chmask >= 0 && f->p_chmask != p_chmask)) { | |
2891 | usb_audio_warn(mixer->chip, "BAAD %s p_chmask mismatch", | |
2892 | f->name); | |
2893 | return false; | |
2894 | } | |
2895 | return true; | |
2896 | } | |
2897 | ||
2898 | /* | |
2899 | * create mixer controls for UAC3 BADD profiles | |
2900 | * | |
2901 | * UAC3 BADD device doesn't contain CS descriptors thus we will guess everything | |
2902 | * | |
2903 | * BADD device may contain Mixer Unit, which doesn't have any controls, skip it | |
2904 | */ | |
2905 | static int snd_usb_mixer_controls_badd(struct usb_mixer_interface *mixer, | |
2906 | int ctrlif) | |
2907 | { | |
2908 | struct usb_device *dev = mixer->chip->dev; | |
2909 | struct usb_interface_assoc_descriptor *assoc; | |
2910 | int badd_profile = mixer->chip->badd_profile; | |
2911 | struct uac3_badd_profile *f; | |
2912 | const struct usbmix_ctl_map *map; | |
2913 | int p_chmask = 0, c_chmask = 0, st_chmask = 0; | |
2914 | int i; | |
2915 | ||
2916 | assoc = usb_ifnum_to_if(dev, ctrlif)->intf_assoc; | |
2917 | ||
2918 | /* Detect BADD capture/playback channels from AS EP descriptors */ | |
2919 | for (i = 0; i < assoc->bInterfaceCount; i++) { | |
2920 | int intf = assoc->bFirstInterface + i; | |
2921 | ||
2922 | struct usb_interface *iface; | |
2923 | struct usb_host_interface *alts; | |
2924 | struct usb_interface_descriptor *altsd; | |
2925 | unsigned int maxpacksize; | |
2926 | char dir_in; | |
2927 | int chmask, num; | |
2928 | ||
2929 | if (intf == ctrlif) | |
2930 | continue; | |
2931 | ||
2932 | iface = usb_ifnum_to_if(dev, intf); | |
9435f2bb TI |
2933 | if (!iface) |
2934 | continue; | |
2935 | ||
17156f23 RB |
2936 | num = iface->num_altsetting; |
2937 | ||
2938 | if (num < 2) | |
2939 | return -EINVAL; | |
2940 | ||
2941 | /* | |
2942 | * The number of Channels in an AudioStreaming interface | |
2943 | * and the audio sample bit resolution (16 bits or 24 | |
2944 | * bits) can be derived from the wMaxPacketSize field in | |
2945 | * the Standard AS Audio Data Endpoint descriptor in | |
2946 | * Alternate Setting 1 | |
2947 | */ | |
2948 | alts = &iface->altsetting[1]; | |
2949 | altsd = get_iface_desc(alts); | |
2950 | ||
2951 | if (altsd->bNumEndpoints < 1) | |
2952 | return -EINVAL; | |
2953 | ||
2954 | /* check direction */ | |
2955 | dir_in = (get_endpoint(alts, 0)->bEndpointAddress & USB_DIR_IN); | |
2956 | maxpacksize = le16_to_cpu(get_endpoint(alts, 0)->wMaxPacketSize); | |
2957 | ||
2958 | switch (maxpacksize) { | |
2959 | default: | |
2960 | usb_audio_err(mixer->chip, | |
2961 | "incorrect wMaxPacketSize 0x%x for BADD profile\n", | |
2962 | maxpacksize); | |
2963 | return -EINVAL; | |
2964 | case UAC3_BADD_EP_MAXPSIZE_SYNC_MONO_16: | |
2965 | case UAC3_BADD_EP_MAXPSIZE_ASYNC_MONO_16: | |
2966 | case UAC3_BADD_EP_MAXPSIZE_SYNC_MONO_24: | |
2967 | case UAC3_BADD_EP_MAXPSIZE_ASYNC_MONO_24: | |
2968 | chmask = 1; | |
2969 | break; | |
2970 | case UAC3_BADD_EP_MAXPSIZE_SYNC_STEREO_16: | |
2971 | case UAC3_BADD_EP_MAXPSIZE_ASYNC_STEREO_16: | |
2972 | case UAC3_BADD_EP_MAXPSIZE_SYNC_STEREO_24: | |
2973 | case UAC3_BADD_EP_MAXPSIZE_ASYNC_STEREO_24: | |
2974 | chmask = 3; | |
2975 | break; | |
2976 | } | |
2977 | ||
2978 | if (dir_in) | |
2979 | c_chmask = chmask; | |
2980 | else | |
2981 | p_chmask = chmask; | |
2982 | } | |
2983 | ||
2984 | usb_audio_dbg(mixer->chip, | |
2985 | "UAC3 BADD profile 0x%x: detected c_chmask=%d p_chmask=%d\n", | |
2986 | badd_profile, c_chmask, p_chmask); | |
2987 | ||
2988 | /* check the mapping table */ | |
2989 | for (map = uac3_badd_usbmix_ctl_maps; map->id; map++) { | |
2990 | if (map->id == badd_profile) | |
2991 | break; | |
2992 | } | |
2993 | ||
2994 | if (!map->id) | |
2995 | return -EINVAL; | |
2996 | ||
2997 | for (f = uac3_badd_profiles; f->name; f++) { | |
2998 | if (badd_profile == f->subclass) | |
2999 | break; | |
3000 | } | |
3001 | if (!f->name) | |
3002 | return -EINVAL; | |
3003 | if (!uac3_badd_func_has_valid_channels(mixer, f, c_chmask, p_chmask)) | |
3004 | return -EINVAL; | |
3005 | st_chmask = f->st_chmask; | |
3006 | ||
3007 | /* Playback */ | |
3008 | if (p_chmask) { | |
3009 | /* Master channel, always writable */ | |
3010 | build_feature_ctl_badd(mixer, 0, UAC_FU_MUTE, | |
3011 | UAC3_BADD_FU_ID2, map->map); | |
3012 | /* Mono/Stereo volume channels, always writable */ | |
3013 | build_feature_ctl_badd(mixer, p_chmask, UAC_FU_VOLUME, | |
3014 | UAC3_BADD_FU_ID2, map->map); | |
3015 | } | |
3016 | ||
3017 | /* Capture */ | |
3018 | if (c_chmask) { | |
3019 | /* Master channel, always writable */ | |
3020 | build_feature_ctl_badd(mixer, 0, UAC_FU_MUTE, | |
3021 | UAC3_BADD_FU_ID5, map->map); | |
3022 | /* Mono/Stereo volume channels, always writable */ | |
3023 | build_feature_ctl_badd(mixer, c_chmask, UAC_FU_VOLUME, | |
3024 | UAC3_BADD_FU_ID5, map->map); | |
3025 | } | |
3026 | ||
3027 | /* Side tone-mixing */ | |
3028 | if (st_chmask) { | |
3029 | /* Master channel, always writable */ | |
3030 | build_feature_ctl_badd(mixer, 0, UAC_FU_MUTE, | |
3031 | UAC3_BADD_FU_ID7, map->map); | |
3032 | /* Mono volume channel, always writable */ | |
3033 | build_feature_ctl_badd(mixer, 1, UAC_FU_VOLUME, | |
3034 | UAC3_BADD_FU_ID7, map->map); | |
3035 | } | |
3036 | ||
3528cd8f JS |
3037 | /* Insertion Control */ |
3038 | if (f->subclass == UAC3_FUNCTION_SUBCLASS_HEADSET_ADAPTER) { | |
3039 | struct usb_audio_term iterm, oterm; | |
3040 | ||
3041 | /* Input Term - Insertion control */ | |
3042 | memset(&iterm, 0, sizeof(iterm)); | |
3043 | iterm.id = UAC3_BADD_IT_ID4; | |
3044 | iterm.type = UAC_BIDIR_TERMINAL_HEADSET; | |
3045 | build_connector_control(mixer, &iterm, true); | |
3046 | ||
3047 | /* Output Term - Insertion control */ | |
3048 | memset(&oterm, 0, sizeof(oterm)); | |
3049 | oterm.id = UAC3_BADD_OT_ID3; | |
3050 | oterm.type = UAC_BIDIR_TERMINAL_HEADSET; | |
3051 | build_connector_control(mixer, &oterm, false); | |
3052 | } | |
3053 | ||
17156f23 RB |
3054 | return 0; |
3055 | } | |
3056 | ||
1da177e4 LT |
3057 | /* |
3058 | * create mixer controls | |
3059 | * | |
de48c7bc | 3060 | * walk through all UAC_OUTPUT_TERMINAL descriptors to search for mixers |
1da177e4 | 3061 | */ |
84957a8a | 3062 | static int snd_usb_mixer_controls(struct usb_mixer_interface *mixer) |
1da177e4 | 3063 | { |
86e07d34 | 3064 | struct mixer_build state; |
1da177e4 LT |
3065 | int err; |
3066 | const struct usbmix_ctl_map *map; | |
23caaf19 | 3067 | void *p; |
1da177e4 LT |
3068 | |
3069 | memset(&state, 0, sizeof(state)); | |
84957a8a CL |
3070 | state.chip = mixer->chip; |
3071 | state.mixer = mixer; | |
1faa5d07 DM |
3072 | state.buffer = mixer->hostif->extra; |
3073 | state.buflen = mixer->hostif->extralen; | |
1da177e4 LT |
3074 | |
3075 | /* check the mapping table */ | |
27d10f56 CL |
3076 | for (map = usbmix_ctl_maps; map->id; map++) { |
3077 | if (map->id == state.chip->usb_id) { | |
1da177e4 | 3078 | state.map = map->map; |
8e062ec7 | 3079 | state.selector_map = map->selector_map; |
84957a8a | 3080 | mixer->ignore_ctl_error = map->ignore_ctl_error; |
1da177e4 LT |
3081 | break; |
3082 | } | |
3083 | } | |
1da177e4 | 3084 | |
23caaf19 | 3085 | p = NULL; |
6bc170e4 DM |
3086 | while ((p = snd_usb_find_csint_desc(mixer->hostif->extra, |
3087 | mixer->hostif->extralen, | |
1faa5d07 | 3088 | p, UAC_OUTPUT_TERMINAL)) != NULL) { |
57f87706 TI |
3089 | if (!snd_usb_validate_audio_desc(p, mixer->protocol)) |
3090 | continue; /* skip invalid descriptor */ | |
3091 | ||
23caaf19 | 3092 | if (mixer->protocol == UAC_VERSION_1) { |
69da9bcb | 3093 | struct uac1_output_terminal_descriptor *desc = p; |
23caaf19 | 3094 | |
6bc170e4 DM |
3095 | /* mark terminal ID as visited */ |
3096 | set_bit(desc->bTerminalID, state.unitbitmap); | |
23caaf19 DM |
3097 | state.oterm.id = desc->bTerminalID; |
3098 | state.oterm.type = le16_to_cpu(desc->wTerminalType); | |
3099 | state.oterm.name = desc->iTerminal; | |
3100 | err = parse_audio_unit(&state, desc->bSourceID); | |
83ea5d18 | 3101 | if (err < 0 && err != -EINVAL) |
23caaf19 | 3102 | return err; |
9a2fe9b8 | 3103 | } else if (mixer->protocol == UAC_VERSION_2) { |
23caaf19 DM |
3104 | struct uac2_output_terminal_descriptor *desc = p; |
3105 | ||
6bc170e4 DM |
3106 | /* mark terminal ID as visited */ |
3107 | set_bit(desc->bTerminalID, state.unitbitmap); | |
23caaf19 DM |
3108 | state.oterm.id = desc->bTerminalID; |
3109 | state.oterm.type = le16_to_cpu(desc->wTerminalType); | |
3110 | state.oterm.name = desc->iTerminal; | |
3111 | err = parse_audio_unit(&state, desc->bSourceID); | |
83ea5d18 | 3112 | if (err < 0 && err != -EINVAL) |
23caaf19 | 3113 | return err; |
09414207 | 3114 | |
6bc170e4 DM |
3115 | /* |
3116 | * For UAC2, use the same approach to also add the | |
3117 | * clock selectors | |
3118 | */ | |
09414207 | 3119 | err = parse_audio_unit(&state, desc->bCSourceID); |
83ea5d18 | 3120 | if (err < 0 && err != -EINVAL) |
09414207 | 3121 | return err; |
5a222e84 | 3122 | |
2b54f785 | 3123 | if (uac_v2v3_control_is_readable(le16_to_cpu(desc->bmControls), |
5a222e84 | 3124 | UAC2_TE_CONNECTOR)) { |
167e1fb1 | 3125 | build_connector_control(state.mixer, &state.oterm, |
5a222e84 AC |
3126 | false); |
3127 | } | |
9a2fe9b8 RB |
3128 | } else { /* UAC_VERSION_3 */ |
3129 | struct uac3_output_terminal_descriptor *desc = p; | |
3130 | ||
9a2fe9b8 RB |
3131 | /* mark terminal ID as visited */ |
3132 | set_bit(desc->bTerminalID, state.unitbitmap); | |
3133 | state.oterm.id = desc->bTerminalID; | |
3134 | state.oterm.type = le16_to_cpu(desc->wTerminalType); | |
3135 | state.oterm.name = le16_to_cpu(desc->wTerminalDescrStr); | |
3136 | err = parse_audio_unit(&state, desc->bSourceID); | |
3137 | if (err < 0 && err != -EINVAL) | |
3138 | return err; | |
3139 | ||
3140 | /* | |
3141 | * For UAC3, use the same approach to also add the | |
3142 | * clock selectors | |
3143 | */ | |
3144 | err = parse_audio_unit(&state, desc->bCSourceID); | |
3145 | if (err < 0 && err != -EINVAL) | |
3146 | return err; | |
1d38f5d8 JS |
3147 | |
3148 | if (uac_v2v3_control_is_readable(le32_to_cpu(desc->bmControls), | |
3149 | UAC3_TE_INSERTION)) { | |
167e1fb1 | 3150 | build_connector_control(state.mixer, &state.oterm, |
1d38f5d8 JS |
3151 | false); |
3152 | } | |
23caaf19 | 3153 | } |
1da177e4 | 3154 | } |
23caaf19 | 3155 | |
1da177e4 LT |
3156 | return 0; |
3157 | } | |
84957a8a | 3158 | |
7b1eda22 | 3159 | void snd_usb_mixer_notify_id(struct usb_mixer_interface *mixer, int unitid) |
6639b6c2 | 3160 | { |
3360b84b | 3161 | struct usb_mixer_elem_list *list; |
6639b6c2 | 3162 | |
8c558076 | 3163 | for_each_mixer_elem(list, mixer, unitid) { |
b2500b58 | 3164 | struct usb_mixer_elem_info *info = |
8c558076 | 3165 | mixer_elem_list_to_info(list); |
b2500b58 JS |
3166 | /* invalidate cache, so the value is read from the device */ |
3167 | info->cached = 0; | |
6639b6c2 | 3168 | snd_ctl_notify(mixer->chip->card, SNDRV_CTL_EVENT_MASK_VALUE, |
3360b84b | 3169 | &list->kctl->id); |
b2500b58 | 3170 | } |
6639b6c2 CL |
3171 | } |
3172 | ||
ebfdeea3 | 3173 | static void snd_usb_mixer_dump_cval(struct snd_info_buffer *buffer, |
3360b84b | 3174 | struct usb_mixer_elem_list *list) |
ebfdeea3 | 3175 | { |
8c558076 | 3176 | struct usb_mixer_elem_info *cval = mixer_elem_list_to_info(list); |
ebfdeea3 JK |
3177 | static char *val_types[] = {"BOOLEAN", "INV_BOOLEAN", |
3178 | "S8", "U8", "S16", "U16"}; | |
ebfdeea3 | 3179 | snd_iprintf(buffer, " Info: id=%i, control=%i, cmask=0x%x, " |
3360b84b | 3180 | "channels=%i, type=\"%s\"\n", cval->head.id, |
ebfdeea3 JK |
3181 | cval->control, cval->cmask, cval->channels, |
3182 | val_types[cval->val_type]); | |
3183 | snd_iprintf(buffer, " Volume: min=%i, max=%i, dBmin=%i, dBmax=%i\n", | |
3184 | cval->min, cval->max, cval->dBmin, cval->dBmax); | |
3185 | } | |
3186 | ||
3187 | static void snd_usb_mixer_proc_read(struct snd_info_entry *entry, | |
3188 | struct snd_info_buffer *buffer) | |
3189 | { | |
3190 | struct snd_usb_audio *chip = entry->private_data; | |
3191 | struct usb_mixer_interface *mixer; | |
3360b84b | 3192 | struct usb_mixer_elem_list *list; |
ebfdeea3 JK |
3193 | int unitid; |
3194 | ||
3195 | list_for_each_entry(mixer, &chip->mixer_list, list) { | |
3196 | snd_iprintf(buffer, | |
7affdc17 | 3197 | "USB Mixer: usb_id=0x%08x, ctrlif=%i, ctlerr=%i\n", |
3d8d4dcf | 3198 | chip->usb_id, snd_usb_ctrl_intf(chip), |
7affdc17 | 3199 | mixer->ignore_ctl_error); |
ebfdeea3 JK |
3200 | snd_iprintf(buffer, "Card: %s\n", chip->card->longname); |
3201 | for (unitid = 0; unitid < MAX_ID_ELEMS; unitid++) { | |
8c558076 | 3202 | for_each_mixer_elem(list, mixer, unitid) { |
3360b84b TI |
3203 | snd_iprintf(buffer, " Unit: %i\n", list->id); |
3204 | if (list->kctl) | |
3205 | snd_iprintf(buffer, | |
3206 | " Control: name=\"%s\", index=%i\n", | |
3207 | list->kctl->id.name, | |
3208 | list->kctl->id.index); | |
3209 | if (list->dump) | |
3210 | list->dump(buffer, list); | |
3211 | } | |
ebfdeea3 JK |
3212 | } |
3213 | } | |
3214 | } | |
3215 | ||
e213e9cf DM |
3216 | static void snd_usb_mixer_interrupt_v2(struct usb_mixer_interface *mixer, |
3217 | int attribute, int value, int index) | |
3218 | { | |
3360b84b | 3219 | struct usb_mixer_elem_list *list; |
e213e9cf DM |
3220 | __u8 unitid = (index >> 8) & 0xff; |
3221 | __u8 control = (value >> 8) & 0xff; | |
3222 | __u8 channel = value & 0xff; | |
191227d9 | 3223 | unsigned int count = 0; |
e213e9cf DM |
3224 | |
3225 | if (channel >= MAX_CHANNELS) { | |
0ba41d91 TI |
3226 | usb_audio_dbg(mixer->chip, |
3227 | "%s(): bogus channel number %d\n", | |
3228 | __func__, channel); | |
e213e9cf DM |
3229 | return; |
3230 | } | |
3231 | ||
8c558076 | 3232 | for_each_mixer_elem(list, mixer, unitid) |
191227d9 DM |
3233 | count++; |
3234 | ||
3235 | if (count == 0) | |
3236 | return; | |
3237 | ||
8c558076 | 3238 | for_each_mixer_elem(list, mixer, unitid) { |
3360b84b TI |
3239 | struct usb_mixer_elem_info *info; |
3240 | ||
3241 | if (!list->kctl) | |
3242 | continue; | |
3243 | ||
8c558076 | 3244 | info = mixer_elem_list_to_info(list); |
191227d9 | 3245 | if (count > 1 && info->control != control) |
e213e9cf DM |
3246 | continue; |
3247 | ||
3248 | switch (attribute) { | |
3249 | case UAC2_CS_CUR: | |
3250 | /* invalidate cache, so the value is read from the device */ | |
3251 | if (channel) | |
3252 | info->cached &= ~(1 << channel); | |
3253 | else /* master channel */ | |
3254 | info->cached = 0; | |
3255 | ||
3256 | snd_ctl_notify(mixer->chip->card, SNDRV_CTL_EVENT_MASK_VALUE, | |
3360b84b | 3257 | &info->head.kctl->id); |
e213e9cf DM |
3258 | break; |
3259 | ||
3260 | case UAC2_CS_RANGE: | |
3261 | /* TODO */ | |
3262 | break; | |
3263 | ||
3264 | case UAC2_CS_MEM: | |
3265 | /* TODO */ | |
3266 | break; | |
3267 | ||
3268 | default: | |
0ba41d91 TI |
3269 | usb_audio_dbg(mixer->chip, |
3270 | "unknown attribute %d in interrupt\n", | |
3271 | attribute); | |
e213e9cf DM |
3272 | break; |
3273 | } /* switch */ | |
3274 | } | |
3275 | } | |
3276 | ||
3277 | static void snd_usb_mixer_interrupt(struct urb *urb) | |
6639b6c2 CL |
3278 | { |
3279 | struct usb_mixer_interface *mixer = urb->context; | |
e213e9cf | 3280 | int len = urb->actual_length; |
edf7de31 | 3281 | int ustatus = urb->status; |
e213e9cf | 3282 | |
edf7de31 | 3283 | if (ustatus != 0) |
e213e9cf | 3284 | goto requeue; |
6639b6c2 | 3285 | |
e213e9cf DM |
3286 | if (mixer->protocol == UAC_VERSION_1) { |
3287 | struct uac1_status_word *status; | |
6639b6c2 | 3288 | |
e213e9cf DM |
3289 | for (status = urb->transfer_buffer; |
3290 | len >= sizeof(*status); | |
3291 | len -= sizeof(*status), status++) { | |
0ba41d91 | 3292 | dev_dbg(&urb->dev->dev, "status interrupt: %02x %02x\n", |
e213e9cf DM |
3293 | status->bStatusType, |
3294 | status->bOriginator); | |
3295 | ||
6639b6c2 | 3296 | /* ignore any notifications not from the control interface */ |
e213e9cf DM |
3297 | if ((status->bStatusType & UAC1_STATUS_TYPE_ORIG_MASK) != |
3298 | UAC1_STATUS_TYPE_ORIG_AUDIO_CONTROL_IF) | |
6639b6c2 | 3299 | continue; |
e213e9cf DM |
3300 | |
3301 | if (status->bStatusType & UAC1_STATUS_TYPE_MEM_CHANGED) | |
3302 | snd_usb_mixer_rc_memory_change(mixer, status->bOriginator); | |
b259b10c | 3303 | else |
e213e9cf DM |
3304 | snd_usb_mixer_notify_id(mixer, status->bOriginator); |
3305 | } | |
3306 | } else { /* UAC_VERSION_2 */ | |
3307 | struct uac2_interrupt_data_msg *msg; | |
3308 | ||
3309 | for (msg = urb->transfer_buffer; | |
3310 | len >= sizeof(*msg); | |
3311 | len -= sizeof(*msg), msg++) { | |
3312 | /* drop vendor specific and endpoint requests */ | |
3313 | if ((msg->bInfo & UAC2_INTERRUPT_DATA_MSG_VENDOR) || | |
3314 | (msg->bInfo & UAC2_INTERRUPT_DATA_MSG_EP)) | |
3315 | continue; | |
3316 | ||
3317 | snd_usb_mixer_interrupt_v2(mixer, msg->bAttribute, | |
3318 | le16_to_cpu(msg->wValue), | |
3319 | le16_to_cpu(msg->wIndex)); | |
6639b6c2 CL |
3320 | } |
3321 | } | |
e213e9cf DM |
3322 | |
3323 | requeue: | |
6bc170e4 DM |
3324 | if (ustatus != -ENOENT && |
3325 | ustatus != -ECONNRESET && | |
3326 | ustatus != -ESHUTDOWN) { | |
6639b6c2 CL |
3327 | urb->dev = mixer->chip->dev; |
3328 | usb_submit_urb(urb, GFP_ATOMIC); | |
3329 | } | |
3330 | } | |
3331 | ||
3332 | /* create the handler for the optional status interrupt endpoint */ | |
3333 | static int snd_usb_mixer_status_create(struct usb_mixer_interface *mixer) | |
3334 | { | |
6639b6c2 CL |
3335 | struct usb_endpoint_descriptor *ep; |
3336 | void *transfer_buffer; | |
3337 | int buffer_length; | |
3338 | unsigned int epnum; | |
3339 | ||
6639b6c2 | 3340 | /* we need one interrupt input endpoint */ |
1faa5d07 | 3341 | if (get_iface_desc(mixer->hostif)->bNumEndpoints < 1) |
6639b6c2 | 3342 | return 0; |
1faa5d07 | 3343 | ep = get_endpoint(mixer->hostif, 0); |
913ae5a2 | 3344 | if (!usb_endpoint_dir_in(ep) || !usb_endpoint_xfer_int(ep)) |
6639b6c2 CL |
3345 | return 0; |
3346 | ||
42a6e66f | 3347 | epnum = usb_endpoint_num(ep); |
6639b6c2 CL |
3348 | buffer_length = le16_to_cpu(ep->wMaxPacketSize); |
3349 | transfer_buffer = kmalloc(buffer_length, GFP_KERNEL); | |
3350 | if (!transfer_buffer) | |
3351 | return -ENOMEM; | |
3352 | mixer->urb = usb_alloc_urb(0, GFP_KERNEL); | |
3353 | if (!mixer->urb) { | |
3354 | kfree(transfer_buffer); | |
3355 | return -ENOMEM; | |
3356 | } | |
3357 | usb_fill_int_urb(mixer->urb, mixer->chip->dev, | |
3358 | usb_rcvintpipe(mixer->chip->dev, epnum), | |
3359 | transfer_buffer, buffer_length, | |
e213e9cf | 3360 | snd_usb_mixer_interrupt, mixer, ep->bInterval); |
6639b6c2 CL |
3361 | usb_submit_urb(mixer->urb, GFP_KERNEL); |
3362 | return 0; | |
3363 | } | |
3364 | ||
4120fbed TI |
3365 | static int keep_iface_ctl_get(struct snd_kcontrol *kcontrol, |
3366 | struct snd_ctl_elem_value *ucontrol) | |
3367 | { | |
3368 | struct usb_mixer_interface *mixer = snd_kcontrol_chip(kcontrol); | |
3369 | ||
3370 | ucontrol->value.integer.value[0] = mixer->chip->keep_iface; | |
3371 | return 0; | |
3372 | } | |
3373 | ||
3374 | static int keep_iface_ctl_put(struct snd_kcontrol *kcontrol, | |
3375 | struct snd_ctl_elem_value *ucontrol) | |
3376 | { | |
3377 | struct usb_mixer_interface *mixer = snd_kcontrol_chip(kcontrol); | |
3378 | bool keep_iface = !!ucontrol->value.integer.value[0]; | |
3379 | ||
3380 | if (mixer->chip->keep_iface == keep_iface) | |
3381 | return 0; | |
3382 | mixer->chip->keep_iface = keep_iface; | |
3383 | return 1; | |
3384 | } | |
3385 | ||
3386 | static const struct snd_kcontrol_new keep_iface_ctl = { | |
3387 | .iface = SNDRV_CTL_ELEM_IFACE_CARD, | |
3388 | .name = "Keep Interface", | |
3389 | .info = snd_ctl_boolean_mono_info, | |
3390 | .get = keep_iface_ctl_get, | |
3391 | .put = keep_iface_ctl_put, | |
3392 | }; | |
3393 | ||
3394 | static int create_keep_iface_ctl(struct usb_mixer_interface *mixer) | |
3395 | { | |
3396 | struct snd_kcontrol *kctl = snd_ctl_new1(&keep_iface_ctl, mixer); | |
3397 | ||
3398 | /* need only one control per card */ | |
3399 | if (snd_ctl_find_id(mixer->chip->card, &kctl->id)) { | |
3400 | snd_ctl_free_one(kctl); | |
3401 | return 0; | |
3402 | } | |
3403 | ||
3404 | return snd_ctl_add(mixer->chip->card, kctl); | |
3405 | } | |
3406 | ||
7a9b8063 TI |
3407 | int snd_usb_create_mixer(struct snd_usb_audio *chip, int ctrlif, |
3408 | int ignore_error) | |
84957a8a | 3409 | { |
86e07d34 | 3410 | static struct snd_device_ops dev_ops = { |
84957a8a CL |
3411 | .dev_free = snd_usb_mixer_dev_free |
3412 | }; | |
3413 | struct usb_mixer_interface *mixer; | |
23caaf19 | 3414 | int err; |
84957a8a CL |
3415 | |
3416 | strcpy(chip->card->mixername, "USB Mixer"); | |
3417 | ||
561b220a | 3418 | mixer = kzalloc(sizeof(*mixer), GFP_KERNEL); |
84957a8a CL |
3419 | if (!mixer) |
3420 | return -ENOMEM; | |
3421 | mixer->chip = chip; | |
7a9b8063 | 3422 | mixer->ignore_ctl_error = ignore_error; |
291186e0 JK |
3423 | mixer->id_elems = kcalloc(MAX_ID_ELEMS, sizeof(*mixer->id_elems), |
3424 | GFP_KERNEL); | |
6639b6c2 CL |
3425 | if (!mixer->id_elems) { |
3426 | kfree(mixer); | |
3427 | return -ENOMEM; | |
3428 | } | |
84957a8a | 3429 | |
1faa5d07 DM |
3430 | mixer->hostif = &usb_ifnum_to_if(chip->dev, ctrlif)->altsetting[0]; |
3431 | switch (get_iface_desc(mixer->hostif)->bInterfaceProtocol) { | |
a2acad82 CL |
3432 | case UAC_VERSION_1: |
3433 | default: | |
3434 | mixer->protocol = UAC_VERSION_1; | |
3435 | break; | |
3436 | case UAC_VERSION_2: | |
3437 | mixer->protocol = UAC_VERSION_2; | |
3438 | break; | |
9a2fe9b8 RB |
3439 | case UAC_VERSION_3: |
3440 | mixer->protocol = UAC_VERSION_3; | |
3441 | break; | |
a2acad82 | 3442 | } |
7b8a043f | 3443 | |
17156f23 RB |
3444 | if (mixer->protocol == UAC_VERSION_3 && |
3445 | chip->badd_profile >= UAC3_FUNCTION_SUBCLASS_GENERIC_IO) { | |
f25ecf8f TI |
3446 | err = snd_usb_mixer_controls_badd(mixer, ctrlif); |
3447 | if (err < 0) | |
3448 | goto _error; | |
3449 | } else { | |
3450 | err = snd_usb_mixer_controls(mixer); | |
3451 | if (err < 0) | |
3452 | goto _error; | |
17156f23 | 3453 | } |
ad6baae6 JS |
3454 | |
3455 | err = snd_usb_mixer_status_create(mixer); | |
3456 | if (err < 0) | |
3457 | goto _error; | |
3458 | ||
4120fbed TI |
3459 | err = create_keep_iface_ctl(mixer); |
3460 | if (err < 0) | |
3461 | goto _error; | |
84957a8a | 3462 | |
328e9f69 TI |
3463 | err = snd_usb_mixer_apply_create_quirk(mixer); |
3464 | if (err < 0) | |
3465 | goto _error; | |
468b8fde | 3466 | |
9cbb2808 | 3467 | err = snd_device_new(chip->card, SNDRV_DEV_CODEC, mixer, &dev_ops); |
93446edc CL |
3468 | if (err < 0) |
3469 | goto _error; | |
ebfdeea3 | 3470 | |
7449054a TI |
3471 | if (list_empty(&chip->mixer_list)) |
3472 | snd_card_ro_proc_new(chip->card, "usbmixer", chip, | |
3473 | snd_usb_mixer_proc_read); | |
ebfdeea3 | 3474 | |
84957a8a CL |
3475 | list_add(&mixer->list, &chip->mixer_list); |
3476 | return 0; | |
93446edc CL |
3477 | |
3478 | _error: | |
3479 | snd_usb_mixer_free(mixer); | |
3480 | return err; | |
84957a8a CL |
3481 | } |
3482 | ||
a6cece9d | 3483 | void snd_usb_mixer_disconnect(struct usb_mixer_interface *mixer) |
84957a8a | 3484 | { |
124751d5 TI |
3485 | if (mixer->disconnected) |
3486 | return; | |
3487 | if (mixer->urb) | |
3488 | usb_kill_urb(mixer->urb); | |
3489 | if (mixer->rc_urb) | |
3490 | usb_kill_urb(mixer->rc_urb); | |
9e4d5c1b GB |
3491 | if (mixer->private_free) |
3492 | mixer->private_free(mixer); | |
124751d5 | 3493 | mixer->disconnected = true; |
84957a8a | 3494 | } |
400362f1 TI |
3495 | |
3496 | #ifdef CONFIG_PM | |
3497 | /* stop any bus activity of a mixer */ | |
3498 | static void snd_usb_mixer_inactivate(struct usb_mixer_interface *mixer) | |
3499 | { | |
3500 | usb_kill_urb(mixer->urb); | |
3501 | usb_kill_urb(mixer->rc_urb); | |
3502 | } | |
3503 | ||
3504 | static int snd_usb_mixer_activate(struct usb_mixer_interface *mixer) | |
3505 | { | |
3506 | int err; | |
3507 | ||
3508 | if (mixer->urb) { | |
3509 | err = usb_submit_urb(mixer->urb, GFP_NOIO); | |
3510 | if (err < 0) | |
3511 | return err; | |
3512 | } | |
3513 | ||
3514 | return 0; | |
3515 | } | |
3516 | ||
3517 | int snd_usb_mixer_suspend(struct usb_mixer_interface *mixer) | |
3518 | { | |
3519 | snd_usb_mixer_inactivate(mixer); | |
9e4d5c1b GB |
3520 | if (mixer->private_suspend) |
3521 | mixer->private_suspend(mixer); | |
400362f1 TI |
3522 | return 0; |
3523 | } | |
3524 | ||
3360b84b | 3525 | static int restore_mixer_value(struct usb_mixer_elem_list *list) |
400362f1 | 3526 | { |
8c558076 | 3527 | struct usb_mixer_elem_info *cval = mixer_elem_list_to_info(list); |
400362f1 TI |
3528 | int c, err, idx; |
3529 | ||
3530 | if (cval->cmask) { | |
3531 | idx = 0; | |
3532 | for (c = 0; c < MAX_CHANNELS; c++) { | |
3533 | if (!(cval->cmask & (1 << c))) | |
3534 | continue; | |
6aa6925c | 3535 | if (cval->cached & (1 << (c + 1))) { |
eef90451 | 3536 | err = snd_usb_set_cur_mix_value(cval, c + 1, idx, |
400362f1 TI |
3537 | cval->cache_val[idx]); |
3538 | if (err < 0) | |
3539 | return err; | |
3540 | } | |
3541 | idx++; | |
3542 | } | |
3543 | } else { | |
3544 | /* master */ | |
3545 | if (cval->cached) { | |
eef90451 | 3546 | err = snd_usb_set_cur_mix_value(cval, 0, 0, *cval->cache_val); |
400362f1 TI |
3547 | if (err < 0) |
3548 | return err; | |
3549 | } | |
3550 | } | |
3551 | ||
3552 | return 0; | |
3553 | } | |
3554 | ||
3555 | int snd_usb_mixer_resume(struct usb_mixer_interface *mixer, bool reset_resume) | |
3556 | { | |
3360b84b | 3557 | struct usb_mixer_elem_list *list; |
400362f1 TI |
3558 | int id, err; |
3559 | ||
400362f1 TI |
3560 | if (reset_resume) { |
3561 | /* restore cached mixer values */ | |
3562 | for (id = 0; id < MAX_ID_ELEMS; id++) { | |
8c558076 | 3563 | for_each_mixer_elem(list, mixer, id) { |
3360b84b TI |
3564 | if (list->resume) { |
3565 | err = list->resume(list); | |
3566 | if (err < 0) | |
3567 | return err; | |
3568 | } | |
400362f1 TI |
3569 | } |
3570 | } | |
3571 | } | |
3572 | ||
964af639 TI |
3573 | snd_usb_mixer_resume_quirk(mixer); |
3574 | ||
400362f1 TI |
3575 | return snd_usb_mixer_activate(mixer); |
3576 | } | |
3577 | #endif | |
3360b84b TI |
3578 | |
3579 | void snd_usb_mixer_elem_init_std(struct usb_mixer_elem_list *list, | |
3580 | struct usb_mixer_interface *mixer, | |
3581 | int unitid) | |
3582 | { | |
3583 | list->mixer = mixer; | |
3584 | list->id = unitid; | |
3585 | list->dump = snd_usb_mixer_dump_cval; | |
3586 | #ifdef CONFIG_PM | |
3587 | list->resume = restore_mixer_value; | |
3588 | #endif | |
3589 | } |